blob: bb367582c1e878ad7d484ccdae9c7ed8bca27e9c [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/************************************************************************
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -07002 * s2io.c: A Linux PCI-X Ethernet driver for Neterion 10GbE Server NIC
Jon Mason926bd902010-07-15 08:47:26 +00003 * Copyright(c) 2002-2010 Exar Corp.
Joe Perchesd44570e2009-08-24 17:29:44 +00004 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07005 * This software may be used and distributed according to the terms of
6 * the GNU General Public License (GPL), incorporated herein by reference.
7 * Drivers based on or derived from this code fall under the GPL and must
8 * retain the authorship, copyright and license notice. This file is not
9 * a complete program and may only be used when the entire operating
10 * system is licensed under the GPL.
11 * See the file COPYING in this distribution for more information.
12 *
13 * Credits:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -070014 * Jeff Garzik : For pointing out the improper error condition
15 * check in the s2io_xmit routine and also some
16 * issues in the Tx watch dog function. Also for
17 * patiently answering all those innumerable
Linus Torvalds1da177e2005-04-16 15:20:36 -070018 * questions regaring the 2.6 porting issues.
19 * Stephen Hemminger : Providing proper 2.6 porting mechanism for some
20 * macros available only in 2.6 Kernel.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -070021 * Francois Romieu : For pointing out all code part that were
Linus Torvalds1da177e2005-04-16 15:20:36 -070022 * deprecated and also styling related comments.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -070023 * Grant Grundler : For helping me get rid of some Architecture
Linus Torvalds1da177e2005-04-16 15:20:36 -070024 * dependent code.
25 * Christopher Hellwig : Some more 2.6 specific issues in the driver.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -070026 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070027 * The module loadable parameters that are supported by the driver and a brief
Joe Perchesa2a20ae2009-08-24 17:29:46 +000028 * explanation of all the variables.
Ananda Raju9dc737a2006-04-21 19:05:41 -040029 *
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -070030 * rx_ring_num : This can be used to program the number of receive rings used
31 * in the driver.
Ananda Raju9dc737a2006-04-21 19:05:41 -040032 * rx_ring_sz: This defines the number of receive blocks each ring can have.
33 * This is also an array of size 8.
Ananda Rajuda6971d2005-10-31 16:55:31 -050034 * rx_ring_mode: This defines the operation mode of all 8 rings. The valid
Veena Parat6d517a22007-07-23 02:20:51 -040035 * values are 1, 2.
Linus Torvalds1da177e2005-04-16 15:20:36 -070036 * tx_fifo_num: This defines the number of Tx FIFOs thats used int the driver.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -070037 * tx_fifo_len: This too is an array of 8. Each element defines the number of
Linus Torvalds1da177e2005-04-16 15:20:36 -070038 * Tx descriptors that can be associated with each corresponding FIFO.
Ananda Raju9dc737a2006-04-21 19:05:41 -040039 * intr_type: This defines the type of interrupt. The values can be 0(INTA),
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -070040 * 2(MSI_X). Default value is '2(MSI_X)'
Ananda Raju9dc737a2006-04-21 19:05:41 -040041 * lro_max_pkts: This parameter defines maximum number of packets can be
42 * aggregated as a single large packet
Sivakumar Subramani926930b2007-02-24 01:59:39 -050043 * napi: This parameter used to enable/disable NAPI (polling Rx)
44 * Possible values '1' for enable and '0' for disable. Default is '1'
45 * ufo: This parameter used to enable/disable UDP Fragmentation Offload(UFO)
46 * Possible values '1' for enable and '0' for disable. Default is '0'
47 * vlan_tag_strip: This can be used to enable or disable vlan stripping.
48 * Possible values '1' for enable , '0' for disable.
49 * Default is '2' - which means disable in promisc mode
50 * and enable in non-promiscuous mode.
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -050051 * multiq: This parameter used to enable/disable MULTIQUEUE support.
52 * Possible values '1' for enable and '0' for disable. Default is '0'
Linus Torvalds1da177e2005-04-16 15:20:36 -070053 ************************************************************************/
54
Joe Perches6cef2b8e2009-08-24 17:29:45 +000055#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
56
Linus Torvalds1da177e2005-04-16 15:20:36 -070057#include <linux/module.h>
58#include <linux/types.h>
59#include <linux/errno.h>
60#include <linux/ioport.h>
61#include <linux/pci.h>
Domen Puncer1e7f0bd2005-06-26 18:22:14 -040062#include <linux/dma-mapping.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070063#include <linux/kernel.h>
64#include <linux/netdevice.h>
65#include <linux/etherdevice.h>
Ben Hutchings40239392009-04-29 08:13:29 +000066#include <linux/mdio.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070067#include <linux/skbuff.h>
68#include <linux/init.h>
69#include <linux/delay.h>
70#include <linux/stddef.h>
71#include <linux/ioctl.h>
72#include <linux/timex.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070073#include <linux/ethtool.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070074#include <linux/workqueue.h>
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -070075#include <linux/if_vlan.h>
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -050076#include <linux/ip.h>
77#include <linux/tcp.h>
Joe Perchesd44570e2009-08-24 17:29:44 +000078#include <linux/uaccess.h>
79#include <linux/io.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090080#include <linux/slab.h>
Paul Gortmaker70c71602011-05-22 16:47:17 -040081#include <linux/prefetch.h>
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -050082#include <net/tcp.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070083
Andrew Mortonfe931392006-02-03 01:45:12 -080084#include <asm/div64.h>
Andrew Morton330ce0d2006-08-14 23:00:14 -070085#include <asm/irq.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070086
87/* local include */
88#include "s2io.h"
89#include "s2io-regs.h"
90
Jon Mason11410b62010-12-10 15:40:03 +000091#define DRV_VERSION "2.0.26.28"
John Linville6c1792f2005-10-04 07:51:45 -040092
Linus Torvalds1da177e2005-04-16 15:20:36 -070093/* S2io Driver name & version. */
Jon Masonc0dbf372010-12-10 15:40:02 +000094static const char s2io_driver_name[] = "Neterion";
95static const char s2io_driver_version[] = DRV_VERSION;
Linus Torvalds1da177e2005-04-16 15:20:36 -070096
Jon Masonc0dbf372010-12-10 15:40:02 +000097static const int rxd_size[2] = {32, 48};
98static const int rxd_count[2] = {127, 85};
Ananda Rajuda6971d2005-10-31 16:55:31 -050099
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500100static inline int RXD_IS_UP2DT(struct RxD_t *rxdp)
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -0700101{
102 int ret;
103
104 ret = ((!(rxdp->Control_1 & RXD_OWN_XENA)) &&
Joe Perchesd44570e2009-08-24 17:29:44 +0000105 (GET_RXD_MARKER(rxdp->Control_2) != THE_RXD_MARK));
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -0700106
107 return ret;
108}
109
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700110/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111 * Cards with following subsystem_id have a link state indication
112 * problem, 600B, 600C, 600D, 640B, 640C and 640D.
113 * macro below identifies these cards given the subsystem_id.
114 */
Joe Perchesd44570e2009-08-24 17:29:44 +0000115#define CARDS_WITH_FAULTY_LINK_INDICATORS(dev_type, subid) \
116 (dev_type == XFRAME_I_DEVICE) ? \
117 ((((subid >= 0x600B) && (subid <= 0x600D)) || \
118 ((subid >= 0x640B) && (subid <= 0x640D))) ? 1 : 0) : 0
Linus Torvalds1da177e2005-04-16 15:20:36 -0700119
120#define LINK_IS_UP(val64) (!(val64 & (ADAPTER_STATUS_RMAC_REMOTE_FAULT | \
121 ADAPTER_STATUS_RMAC_LOCAL_FAULT)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700122
Joe Perchesd44570e2009-08-24 17:29:44 +0000123static inline int is_s2io_card_up(const struct s2io_nic *sp)
Sivakumar Subramani92b84432007-09-06 06:51:14 -0400124{
125 return test_bit(__S2IO_STATE_CARD_UP, &sp->state);
126}
127
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128/* Ethtool related variables and Macros. */
Joe Perches6fce3652009-08-24 17:29:40 +0000129static const char s2io_gstrings[][ETH_GSTRING_LEN] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130 "Register test\t(offline)",
131 "Eeprom test\t(offline)",
132 "Link test\t(online)",
133 "RLDRAM test\t(offline)",
134 "BIST Test\t(offline)"
135};
136
Joe Perches6fce3652009-08-24 17:29:40 +0000137static const char ethtool_xena_stats_keys[][ETH_GSTRING_LEN] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138 {"tmac_frms"},
139 {"tmac_data_octets"},
140 {"tmac_drop_frms"},
141 {"tmac_mcst_frms"},
142 {"tmac_bcst_frms"},
143 {"tmac_pause_ctrl_frms"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400144 {"tmac_ttl_octets"},
145 {"tmac_ucst_frms"},
146 {"tmac_nucst_frms"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147 {"tmac_any_err_frms"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400148 {"tmac_ttl_less_fb_octets"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149 {"tmac_vld_ip_octets"},
150 {"tmac_vld_ip"},
151 {"tmac_drop_ip"},
152 {"tmac_icmp"},
153 {"tmac_rst_tcp"},
154 {"tmac_tcp"},
155 {"tmac_udp"},
156 {"rmac_vld_frms"},
157 {"rmac_data_octets"},
158 {"rmac_fcs_err_frms"},
159 {"rmac_drop_frms"},
160 {"rmac_vld_mcst_frms"},
161 {"rmac_vld_bcst_frms"},
162 {"rmac_in_rng_len_err_frms"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400163 {"rmac_out_rng_len_err_frms"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164 {"rmac_long_frms"},
165 {"rmac_pause_ctrl_frms"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400166 {"rmac_unsup_ctrl_frms"},
167 {"rmac_ttl_octets"},
168 {"rmac_accepted_ucst_frms"},
169 {"rmac_accepted_nucst_frms"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170 {"rmac_discarded_frms"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400171 {"rmac_drop_events"},
172 {"rmac_ttl_less_fb_octets"},
173 {"rmac_ttl_frms"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174 {"rmac_usized_frms"},
175 {"rmac_osized_frms"},
176 {"rmac_frag_frms"},
177 {"rmac_jabber_frms"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400178 {"rmac_ttl_64_frms"},
179 {"rmac_ttl_65_127_frms"},
180 {"rmac_ttl_128_255_frms"},
181 {"rmac_ttl_256_511_frms"},
182 {"rmac_ttl_512_1023_frms"},
183 {"rmac_ttl_1024_1518_frms"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184 {"rmac_ip"},
185 {"rmac_ip_octets"},
186 {"rmac_hdr_err_ip"},
187 {"rmac_drop_ip"},
188 {"rmac_icmp"},
189 {"rmac_tcp"},
190 {"rmac_udp"},
191 {"rmac_err_drp_udp"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400192 {"rmac_xgmii_err_sym"},
193 {"rmac_frms_q0"},
194 {"rmac_frms_q1"},
195 {"rmac_frms_q2"},
196 {"rmac_frms_q3"},
197 {"rmac_frms_q4"},
198 {"rmac_frms_q5"},
199 {"rmac_frms_q6"},
200 {"rmac_frms_q7"},
201 {"rmac_full_q0"},
202 {"rmac_full_q1"},
203 {"rmac_full_q2"},
204 {"rmac_full_q3"},
205 {"rmac_full_q4"},
206 {"rmac_full_q5"},
207 {"rmac_full_q6"},
208 {"rmac_full_q7"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209 {"rmac_pause_cnt"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400210 {"rmac_xgmii_data_err_cnt"},
211 {"rmac_xgmii_ctrl_err_cnt"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212 {"rmac_accepted_ip"},
213 {"rmac_err_tcp"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400214 {"rd_req_cnt"},
215 {"new_rd_req_cnt"},
216 {"new_rd_req_rtry_cnt"},
217 {"rd_rtry_cnt"},
218 {"wr_rtry_rd_ack_cnt"},
219 {"wr_req_cnt"},
220 {"new_wr_req_cnt"},
221 {"new_wr_req_rtry_cnt"},
222 {"wr_rtry_cnt"},
223 {"wr_disc_cnt"},
224 {"rd_rtry_wr_ack_cnt"},
225 {"txp_wr_cnt"},
226 {"txd_rd_cnt"},
227 {"txd_wr_cnt"},
228 {"rxd_rd_cnt"},
229 {"rxd_wr_cnt"},
230 {"txf_rd_cnt"},
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -0500231 {"rxf_wr_cnt"}
232};
233
Joe Perches6fce3652009-08-24 17:29:40 +0000234static const char ethtool_enhanced_stats_keys[][ETH_GSTRING_LEN] = {
Ananda Rajubd1034f2006-04-21 19:20:22 -0400235 {"rmac_ttl_1519_4095_frms"},
236 {"rmac_ttl_4096_8191_frms"},
237 {"rmac_ttl_8192_max_frms"},
238 {"rmac_ttl_gt_max_frms"},
239 {"rmac_osized_alt_frms"},
240 {"rmac_jabber_alt_frms"},
241 {"rmac_gt_max_alt_frms"},
242 {"rmac_vlan_frms"},
243 {"rmac_len_discard"},
244 {"rmac_fcs_discard"},
245 {"rmac_pf_discard"},
246 {"rmac_da_discard"},
247 {"rmac_red_discard"},
248 {"rmac_rts_discard"},
249 {"rmac_ingm_full_discard"},
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -0500250 {"link_fault_cnt"}
251};
252
Joe Perches6fce3652009-08-24 17:29:40 +0000253static const char ethtool_driver_stats_keys[][ETH_GSTRING_LEN] = {
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -0700254 {"\n DRIVER STATISTICS"},
255 {"single_bit_ecc_errs"},
256 {"double_bit_ecc_errs"},
Ananda Rajubd1034f2006-04-21 19:20:22 -0400257 {"parity_err_cnt"},
258 {"serious_err_cnt"},
259 {"soft_reset_cnt"},
260 {"fifo_full_cnt"},
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -0700261 {"ring_0_full_cnt"},
262 {"ring_1_full_cnt"},
263 {"ring_2_full_cnt"},
264 {"ring_3_full_cnt"},
265 {"ring_4_full_cnt"},
266 {"ring_5_full_cnt"},
267 {"ring_6_full_cnt"},
268 {"ring_7_full_cnt"},
Stephen Hemminger43b7c452007-10-05 12:39:21 -0700269 {"alarm_transceiver_temp_high"},
270 {"alarm_transceiver_temp_low"},
271 {"alarm_laser_bias_current_high"},
272 {"alarm_laser_bias_current_low"},
273 {"alarm_laser_output_power_high"},
274 {"alarm_laser_output_power_low"},
275 {"warn_transceiver_temp_high"},
276 {"warn_transceiver_temp_low"},
277 {"warn_laser_bias_current_high"},
278 {"warn_laser_bias_current_low"},
279 {"warn_laser_output_power_high"},
280 {"warn_laser_output_power_low"},
281 {"lro_aggregated_pkts"},
282 {"lro_flush_both_count"},
283 {"lro_out_of_sequence_pkts"},
284 {"lro_flush_due_to_max_pkts"},
285 {"lro_avg_aggr_pkts"},
286 {"mem_alloc_fail_cnt"},
287 {"pci_map_fail_cnt"},
288 {"watchdog_timer_cnt"},
289 {"mem_allocated"},
290 {"mem_freed"},
291 {"link_up_cnt"},
292 {"link_down_cnt"},
293 {"link_up_time"},
294 {"link_down_time"},
295 {"tx_tcode_buf_abort_cnt"},
296 {"tx_tcode_desc_abort_cnt"},
297 {"tx_tcode_parity_err_cnt"},
298 {"tx_tcode_link_loss_cnt"},
299 {"tx_tcode_list_proc_err_cnt"},
300 {"rx_tcode_parity_err_cnt"},
301 {"rx_tcode_abort_cnt"},
302 {"rx_tcode_parity_abort_cnt"},
303 {"rx_tcode_rda_fail_cnt"},
304 {"rx_tcode_unkn_prot_cnt"},
305 {"rx_tcode_fcs_err_cnt"},
306 {"rx_tcode_buf_size_err_cnt"},
307 {"rx_tcode_rxd_corrupt_cnt"},
308 {"rx_tcode_unkn_err_cnt"},
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -0700309 {"tda_err_cnt"},
310 {"pfc_err_cnt"},
311 {"pcc_err_cnt"},
312 {"tti_err_cnt"},
313 {"tpa_err_cnt"},
314 {"sm_err_cnt"},
315 {"lso_err_cnt"},
316 {"mac_tmac_err_cnt"},
317 {"mac_rmac_err_cnt"},
318 {"xgxs_txgxs_err_cnt"},
319 {"xgxs_rxgxs_err_cnt"},
320 {"rc_err_cnt"},
321 {"prc_pcix_err_cnt"},
322 {"rpa_err_cnt"},
323 {"rda_err_cnt"},
324 {"rti_err_cnt"},
325 {"mc_err_cnt"}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326};
327
Alejandro Martinez Ruiz4c3616c2007-10-18 10:00:15 +0200328#define S2IO_XENA_STAT_LEN ARRAY_SIZE(ethtool_xena_stats_keys)
329#define S2IO_ENHANCED_STAT_LEN ARRAY_SIZE(ethtool_enhanced_stats_keys)
330#define S2IO_DRIVER_STAT_LEN ARRAY_SIZE(ethtool_driver_stats_keys)
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -0500331
Joe Perchesd44570e2009-08-24 17:29:44 +0000332#define XFRAME_I_STAT_LEN (S2IO_XENA_STAT_LEN + S2IO_DRIVER_STAT_LEN)
333#define XFRAME_II_STAT_LEN (XFRAME_I_STAT_LEN + S2IO_ENHANCED_STAT_LEN)
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -0500334
Joe Perchesd44570e2009-08-24 17:29:44 +0000335#define XFRAME_I_STAT_STRINGS_LEN (XFRAME_I_STAT_LEN * ETH_GSTRING_LEN)
336#define XFRAME_II_STAT_STRINGS_LEN (XFRAME_II_STAT_LEN * ETH_GSTRING_LEN)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700337
Alejandro Martinez Ruiz4c3616c2007-10-18 10:00:15 +0200338#define S2IO_TEST_LEN ARRAY_SIZE(s2io_gstrings)
Joe Perchesd44570e2009-08-24 17:29:44 +0000339#define S2IO_STRINGS_LEN (S2IO_TEST_LEN * ETH_GSTRING_LEN)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340
Joe Perchesd44570e2009-08-24 17:29:44 +0000341#define S2IO_TIMER_CONF(timer, handle, arg, exp) \
342 init_timer(&timer); \
343 timer.function = handle; \
344 timer.data = (unsigned long)arg; \
345 mod_timer(&timer, (jiffies + exp)) \
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -0700346
Sivakumar Subramani2fd37682007-09-14 07:39:19 -0400347/* copy mac addr to def_mac_addr array */
348static void do_s2io_copy_mac_addr(struct s2io_nic *sp, int offset, u64 mac_addr)
349{
350 sp->def_mac_addr[offset].mac_addr[5] = (u8) (mac_addr);
351 sp->def_mac_addr[offset].mac_addr[4] = (u8) (mac_addr >> 8);
352 sp->def_mac_addr[offset].mac_addr[3] = (u8) (mac_addr >> 16);
353 sp->def_mac_addr[offset].mac_addr[2] = (u8) (mac_addr >> 24);
354 sp->def_mac_addr[offset].mac_addr[1] = (u8) (mac_addr >> 32);
355 sp->def_mac_addr[offset].mac_addr[0] = (u8) (mac_addr >> 40);
356}
Stephen Hemminger04025092008-11-21 17:28:55 -0800357
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700358/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359 * Constants to be programmed into the Xena's registers, to configure
360 * the XAUI.
361 */
362
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363#define END_SIGN 0x0
Arjan van de Venf71e1302006-03-03 21:33:57 -0500364static const u64 herc_act_dtx_cfg[] = {
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -0700365 /* Set address */
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -0700366 0x8000051536750000ULL, 0x80000515367500E0ULL,
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -0700367 /* Write data */
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -0700368 0x8000051536750004ULL, 0x80000515367500E4ULL,
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -0700369 /* Set address */
370 0x80010515003F0000ULL, 0x80010515003F00E0ULL,
371 /* Write data */
372 0x80010515003F0004ULL, 0x80010515003F00E4ULL,
373 /* Set address */
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -0700374 0x801205150D440000ULL, 0x801205150D4400E0ULL,
375 /* Write data */
376 0x801205150D440004ULL, 0x801205150D4400E4ULL,
377 /* Set address */
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -0700378 0x80020515F2100000ULL, 0x80020515F21000E0ULL,
379 /* Write data */
380 0x80020515F2100004ULL, 0x80020515F21000E4ULL,
381 /* Done */
382 END_SIGN
383};
384
Arjan van de Venf71e1302006-03-03 21:33:57 -0500385static const u64 xena_dtx_cfg[] = {
Ananda Rajuc92ca042006-04-21 19:18:03 -0400386 /* Set address */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387 0x8000051500000000ULL, 0x80000515000000E0ULL,
Ananda Rajuc92ca042006-04-21 19:18:03 -0400388 /* Write data */
389 0x80000515D9350004ULL, 0x80000515D93500E4ULL,
390 /* Set address */
391 0x8001051500000000ULL, 0x80010515000000E0ULL,
392 /* Write data */
393 0x80010515001E0004ULL, 0x80010515001E00E4ULL,
394 /* Set address */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700395 0x8002051500000000ULL, 0x80020515000000E0ULL,
Ananda Rajuc92ca042006-04-21 19:18:03 -0400396 /* Write data */
397 0x80020515F2100004ULL, 0x80020515F21000E4ULL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398 END_SIGN
399};
400
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700401/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402 * Constants for Fixing the MacAddress problem seen mostly on
403 * Alpha machines.
404 */
Arjan van de Venf71e1302006-03-03 21:33:57 -0500405static const u64 fix_mac[] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700406 0x0060000000000000ULL, 0x0060600000000000ULL,
407 0x0040600000000000ULL, 0x0000600000000000ULL,
408 0x0020600000000000ULL, 0x0060600000000000ULL,
409 0x0020600000000000ULL, 0x0060600000000000ULL,
410 0x0020600000000000ULL, 0x0060600000000000ULL,
411 0x0020600000000000ULL, 0x0060600000000000ULL,
412 0x0020600000000000ULL, 0x0060600000000000ULL,
413 0x0020600000000000ULL, 0x0060600000000000ULL,
414 0x0020600000000000ULL, 0x0060600000000000ULL,
415 0x0020600000000000ULL, 0x0060600000000000ULL,
416 0x0020600000000000ULL, 0x0060600000000000ULL,
417 0x0020600000000000ULL, 0x0060600000000000ULL,
418 0x0020600000000000ULL, 0x0000600000000000ULL,
419 0x0040600000000000ULL, 0x0060600000000000ULL,
420 END_SIGN
421};
422
Ananda Rajub41477f2006-07-24 19:52:49 -0400423MODULE_LICENSE("GPL");
424MODULE_VERSION(DRV_VERSION);
425
426
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427/* Module Loadable parameters. */
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -0500428S2IO_PARM_INT(tx_fifo_num, FIFO_DEFAULT_NUM);
Ananda Rajub41477f2006-07-24 19:52:49 -0400429S2IO_PARM_INT(rx_ring_num, 1);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500430S2IO_PARM_INT(multiq, 0);
Ananda Rajub41477f2006-07-24 19:52:49 -0400431S2IO_PARM_INT(rx_ring_mode, 1);
432S2IO_PARM_INT(use_continuous_tx_intrs, 1);
433S2IO_PARM_INT(rmac_pause_time, 0x100);
434S2IO_PARM_INT(mc_pause_threshold_q0q3, 187);
435S2IO_PARM_INT(mc_pause_threshold_q4q7, 187);
436S2IO_PARM_INT(shared_splits, 0);
437S2IO_PARM_INT(tmac_util_period, 5);
438S2IO_PARM_INT(rmac_util_period, 5);
Ananda Rajub41477f2006-07-24 19:52:49 -0400439S2IO_PARM_INT(l3l4hdr_size, 128);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -0500440/* 0 is no steering, 1 is Priority steering, 2 is Default steering */
441S2IO_PARM_INT(tx_steering_type, TX_DEFAULT_STEERING);
Ananda Rajub41477f2006-07-24 19:52:49 -0400442/* Frequency of Rx desc syncs expressed as power of 2 */
443S2IO_PARM_INT(rxsync_frequency, 3);
Veena Parateccb8622007-07-23 02:23:54 -0400444/* Interrupt type. Values can be 0(INTA), 2(MSI_X) */
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -0700445S2IO_PARM_INT(intr_type, 2);
Ananda Rajub41477f2006-07-24 19:52:49 -0400446/* Large receive offload feature */
Stephen Hemminger43b7c452007-10-05 12:39:21 -0700447
Ananda Rajub41477f2006-07-24 19:52:49 -0400448/* Max pkts to be aggregated by LRO at one time. If not specified,
449 * aggregation happens until we hit max IP pkt size(64K)
450 */
451S2IO_PARM_INT(lro_max_pkts, 0xFFFF);
Ananda Rajub41477f2006-07-24 19:52:49 -0400452S2IO_PARM_INT(indicate_max_pkts, 0);
Sivakumar Subramanidb874e62007-01-31 13:28:08 -0500453
454S2IO_PARM_INT(napi, 1);
455S2IO_PARM_INT(ufo, 0);
Sivakumar Subramani926930b2007-02-24 01:59:39 -0500456S2IO_PARM_INT(vlan_tag_strip, NO_STRIP_IN_PROMISC);
Ananda Rajub41477f2006-07-24 19:52:49 -0400457
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458static unsigned int tx_fifo_len[MAX_TX_FIFOS] =
Joe Perchesd44570e2009-08-24 17:29:44 +0000459{DEFAULT_FIFO_0_LEN, [1 ...(MAX_TX_FIFOS - 1)] = DEFAULT_FIFO_1_7_LEN};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460static unsigned int rx_ring_sz[MAX_RX_RINGS] =
Joe Perchesd44570e2009-08-24 17:29:44 +0000461{[0 ...(MAX_RX_RINGS - 1)] = SMALL_BLK_CNT};
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700462static unsigned int rts_frm_len[MAX_RX_RINGS] =
Joe Perchesd44570e2009-08-24 17:29:44 +0000463{[0 ...(MAX_RX_RINGS - 1)] = 0 };
Ananda Rajub41477f2006-07-24 19:52:49 -0400464
465module_param_array(tx_fifo_len, uint, NULL, 0);
466module_param_array(rx_ring_sz, uint, NULL, 0);
467module_param_array(rts_frm_len, uint, NULL, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700468
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700469/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700470 * S2IO device table.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700471 * This table lists all the devices that this driver supports.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700472 */
Alexey Dobriyana3aa1882010-01-07 11:58:11 +0000473static DEFINE_PCI_DEVICE_TABLE(s2io_tbl) = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_S2IO_WIN,
475 PCI_ANY_ID, PCI_ANY_ID},
476 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_S2IO_UNI,
477 PCI_ANY_ID, PCI_ANY_ID},
478 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_HERC_WIN,
Joe Perchesd44570e2009-08-24 17:29:44 +0000479 PCI_ANY_ID, PCI_ANY_ID},
480 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_HERC_UNI,
481 PCI_ANY_ID, PCI_ANY_ID},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700482 {0,}
483};
484
485MODULE_DEVICE_TABLE(pci, s2io_tbl);
486
Linas Vepstasd796fdb2007-05-14 18:37:30 -0500487static struct pci_error_handlers s2io_err_handler = {
488 .error_detected = s2io_io_error_detected,
489 .slot_reset = s2io_io_slot_reset,
490 .resume = s2io_io_resume,
491};
492
Linus Torvalds1da177e2005-04-16 15:20:36 -0700493static struct pci_driver s2io_driver = {
Joe Perchesd44570e2009-08-24 17:29:44 +0000494 .name = "S2IO",
495 .id_table = s2io_tbl,
496 .probe = s2io_init_nic,
497 .remove = __devexit_p(s2io_rem_nic),
498 .err_handler = &s2io_err_handler,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700499};
500
501/* A simplifier macro used both by init and free shared_mem Fns(). */
502#define TXD_MEM_PAGE_CNT(len, per_each) ((len+per_each - 1) / per_each)
503
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500504/* netqueue manipulation helper functions */
505static inline void s2io_stop_all_tx_queue(struct s2io_nic *sp)
506{
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700507 if (!sp->config.multiq) {
508 int i;
509
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500510 for (i = 0; i < sp->config.tx_fifo_num; i++)
511 sp->mac_control.fifos[i].queue_state = FIFO_QUEUE_STOP;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500512 }
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700513 netif_tx_stop_all_queues(sp->dev);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500514}
515
516static inline void s2io_stop_tx_queue(struct s2io_nic *sp, int fifo_no)
517{
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700518 if (!sp->config.multiq)
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500519 sp->mac_control.fifos[fifo_no].queue_state =
520 FIFO_QUEUE_STOP;
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700521
522 netif_tx_stop_all_queues(sp->dev);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500523}
524
525static inline void s2io_start_all_tx_queue(struct s2io_nic *sp)
526{
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700527 if (!sp->config.multiq) {
528 int i;
529
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500530 for (i = 0; i < sp->config.tx_fifo_num; i++)
531 sp->mac_control.fifos[i].queue_state = FIFO_QUEUE_START;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500532 }
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700533 netif_tx_start_all_queues(sp->dev);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500534}
535
536static inline void s2io_start_tx_queue(struct s2io_nic *sp, int fifo_no)
537{
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700538 if (!sp->config.multiq)
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500539 sp->mac_control.fifos[fifo_no].queue_state =
540 FIFO_QUEUE_START;
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700541
542 netif_tx_start_all_queues(sp->dev);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500543}
544
545static inline void s2io_wake_all_tx_queue(struct s2io_nic *sp)
546{
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700547 if (!sp->config.multiq) {
548 int i;
549
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500550 for (i = 0; i < sp->config.tx_fifo_num; i++)
551 sp->mac_control.fifos[i].queue_state = FIFO_QUEUE_START;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500552 }
David S. Millerfd2ea0a2008-07-17 01:56:23 -0700553 netif_tx_wake_all_queues(sp->dev);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500554}
555
556static inline void s2io_wake_tx_queue(
557 struct fifo_info *fifo, int cnt, u8 multiq)
558{
559
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500560 if (multiq) {
561 if (cnt && __netif_subqueue_stopped(fifo->dev, fifo->fifo_no))
562 netif_wake_subqueue(fifo->dev, fifo->fifo_no);
David S. Millerb19fa1f2008-07-08 23:14:24 -0700563 } else if (cnt && (fifo->queue_state == FIFO_QUEUE_STOP)) {
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -0500564 if (netif_queue_stopped(fifo->dev)) {
565 fifo->queue_state = FIFO_QUEUE_START;
566 netif_wake_queue(fifo->dev);
567 }
568 }
569}
570
Linus Torvalds1da177e2005-04-16 15:20:36 -0700571/**
572 * init_shared_mem - Allocation and Initialization of Memory
573 * @nic: Device private variable.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700574 * Description: The function allocates all the memory areas shared
575 * between the NIC and the driver. This includes Tx descriptors,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700576 * Rx descriptors and the statistics block.
577 */
578
579static int init_shared_mem(struct s2io_nic *nic)
580{
581 u32 size;
582 void *tmp_v_addr, *tmp_v_addr_next;
583 dma_addr_t tmp_p_addr, tmp_p_addr_next;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500584 struct RxD_block *pre_rxd_blk = NULL;
Sivakumar Subramani372cc592007-01-31 13:32:57 -0500585 int i, j, blk_cnt;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700586 int lst_size, lst_per_page;
587 struct net_device *dev = nic->dev;
viro@zenIV.linux.org.uk8ae418c2005-09-02 20:15:29 +0100588 unsigned long tmp;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500589 struct buffAdd *ba;
Joe Perchesffb5df62009-08-24 17:29:47 +0000590 struct config_param *config = &nic->config;
591 struct mac_info *mac_control = &nic->mac_control;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400592 unsigned long long mem_allocated = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700593
Joe Perches13d866a2009-08-24 17:29:41 +0000594 /* Allocation and initialization of TXDLs in FIFOs */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700595 size = 0;
596 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000597 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
598
599 size += tx_cfg->fifo_len;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700600 }
601 if (size > MAX_AVAILABLE_TXDS) {
Joe Perches9e39f7c2009-08-25 08:52:00 +0000602 DBG_PRINT(ERR_DBG,
603 "Too many TxDs requested: %d, max supported: %d\n",
604 size, MAX_AVAILABLE_TXDS);
Ananda Rajub41477f2006-07-24 19:52:49 -0400605 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700606 }
607
Surjit Reang2fda0962008-01-24 02:08:59 -0800608 size = 0;
609 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000610 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
611
612 size = tx_cfg->fifo_len;
Surjit Reang2fda0962008-01-24 02:08:59 -0800613 /*
614 * Legal values are from 2 to 8192
615 */
616 if (size < 2) {
Joe Perches9e39f7c2009-08-25 08:52:00 +0000617 DBG_PRINT(ERR_DBG, "Fifo %d: Invalid length (%d) - "
618 "Valid lengths are 2 through 8192\n",
619 i, size);
Surjit Reang2fda0962008-01-24 02:08:59 -0800620 return -EINVAL;
621 }
622 }
623
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500624 lst_size = (sizeof(struct TxD) * config->max_txds);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700625 lst_per_page = PAGE_SIZE / lst_size;
626
627 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000628 struct fifo_info *fifo = &mac_control->fifos[i];
629 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
630 int fifo_len = tx_cfg->fifo_len;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500631 int list_holder_size = fifo_len * sizeof(struct list_info_hold);
Joe Perches13d866a2009-08-24 17:29:41 +0000632
633 fifo->list_info = kzalloc(list_holder_size, GFP_KERNEL);
634 if (!fifo->list_info) {
Joe Perchesd44570e2009-08-24 17:29:44 +0000635 DBG_PRINT(INFO_DBG, "Malloc failed for list_info\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700636 return -ENOMEM;
637 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400638 mem_allocated += list_holder_size;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700639 }
640 for (i = 0; i < config->tx_fifo_num; i++) {
641 int page_num = TXD_MEM_PAGE_CNT(config->tx_cfg[i].fifo_len,
642 lst_per_page);
Joe Perches13d866a2009-08-24 17:29:41 +0000643 struct fifo_info *fifo = &mac_control->fifos[i];
644 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
645
646 fifo->tx_curr_put_info.offset = 0;
647 fifo->tx_curr_put_info.fifo_len = tx_cfg->fifo_len - 1;
648 fifo->tx_curr_get_info.offset = 0;
649 fifo->tx_curr_get_info.fifo_len = tx_cfg->fifo_len - 1;
650 fifo->fifo_no = i;
651 fifo->nic = nic;
652 fifo->max_txds = MAX_SKB_FRAGS + 2;
653 fifo->dev = dev;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700654
Linus Torvalds1da177e2005-04-16 15:20:36 -0700655 for (j = 0; j < page_num; j++) {
656 int k = 0;
657 dma_addr_t tmp_p;
658 void *tmp_v;
659 tmp_v = pci_alloc_consistent(nic->pdev,
660 PAGE_SIZE, &tmp_p);
661 if (!tmp_v) {
Joe Perches9e39f7c2009-08-25 08:52:00 +0000662 DBG_PRINT(INFO_DBG,
663 "pci_alloc_consistent failed for TxDL\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700664 return -ENOMEM;
665 }
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700666 /* If we got a zero DMA address(can happen on
667 * certain platforms like PPC), reallocate.
668 * Store virtual address of page we don't want,
669 * to be freed later.
670 */
671 if (!tmp_p) {
672 mac_control->zerodma_virt_addr = tmp_v;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400673 DBG_PRINT(INIT_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +0000674 "%s: Zero DMA address for TxDL. "
675 "Virtual address %p\n",
676 dev->name, tmp_v);
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700677 tmp_v = pci_alloc_consistent(nic->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +0000678 PAGE_SIZE, &tmp_p);
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700679 if (!tmp_v) {
Ramkrishna Vepa0c61ed52007-03-09 18:28:32 -0800680 DBG_PRINT(INFO_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +0000681 "pci_alloc_consistent failed for TxDL\n");
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700682 return -ENOMEM;
683 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400684 mem_allocated += PAGE_SIZE;
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700685 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686 while (k < lst_per_page) {
687 int l = (j * lst_per_page) + k;
Joe Perches13d866a2009-08-24 17:29:41 +0000688 if (l == tx_cfg->fifo_len)
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700689 break;
Joe Perches13d866a2009-08-24 17:29:41 +0000690 fifo->list_info[l].list_virt_addr =
Joe Perchesd44570e2009-08-24 17:29:44 +0000691 tmp_v + (k * lst_size);
Joe Perches13d866a2009-08-24 17:29:41 +0000692 fifo->list_info[l].list_phy_addr =
Joe Perchesd44570e2009-08-24 17:29:44 +0000693 tmp_p + (k * lst_size);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700694 k++;
695 }
696 }
697 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700698
Surjit Reang2fda0962008-01-24 02:08:59 -0800699 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000700 struct fifo_info *fifo = &mac_control->fifos[i];
701 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
702
703 size = tx_cfg->fifo_len;
704 fifo->ufo_in_band_v = kcalloc(size, sizeof(u64), GFP_KERNEL);
705 if (!fifo->ufo_in_band_v)
Surjit Reang2fda0962008-01-24 02:08:59 -0800706 return -ENOMEM;
707 mem_allocated += (size * sizeof(u64));
708 }
Ananda Rajufed5ecc2005-11-14 15:25:08 -0500709
Linus Torvalds1da177e2005-04-16 15:20:36 -0700710 /* Allocation and initialization of RXDs in Rings */
711 size = 0;
712 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000713 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
714 struct ring_info *ring = &mac_control->rings[i];
715
716 if (rx_cfg->num_rxd % (rxd_count[nic->rxd_mode] + 1)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +0000717 DBG_PRINT(ERR_DBG, "%s: Ring%d RxD count is not a "
718 "multiple of RxDs per Block\n",
719 dev->name, i);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700720 return FAILURE;
721 }
Joe Perches13d866a2009-08-24 17:29:41 +0000722 size += rx_cfg->num_rxd;
723 ring->block_count = rx_cfg->num_rxd /
Joe Perchesd44570e2009-08-24 17:29:44 +0000724 (rxd_count[nic->rxd_mode] + 1);
Joe Perches13d866a2009-08-24 17:29:41 +0000725 ring->pkt_cnt = rx_cfg->num_rxd - ring->block_count;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700726 }
Ananda Rajuda6971d2005-10-31 16:55:31 -0500727 if (nic->rxd_mode == RXD_MODE_1)
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500728 size = (size * (sizeof(struct RxD1)));
Ananda Rajuda6971d2005-10-31 16:55:31 -0500729 else
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500730 size = (size * (sizeof(struct RxD3)));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700731
732 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000733 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
734 struct ring_info *ring = &mac_control->rings[i];
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700735
Joe Perches13d866a2009-08-24 17:29:41 +0000736 ring->rx_curr_get_info.block_index = 0;
737 ring->rx_curr_get_info.offset = 0;
738 ring->rx_curr_get_info.ring_len = rx_cfg->num_rxd - 1;
739 ring->rx_curr_put_info.block_index = 0;
740 ring->rx_curr_put_info.offset = 0;
741 ring->rx_curr_put_info.ring_len = rx_cfg->num_rxd - 1;
742 ring->nic = nic;
743 ring->ring_no = i;
Joe Perches13d866a2009-08-24 17:29:41 +0000744
745 blk_cnt = rx_cfg->num_rxd / (rxd_count[nic->rxd_mode] + 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700746 /* Allocating all the Rx blocks */
747 for (j = 0; j < blk_cnt; j++) {
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500748 struct rx_block_info *rx_blocks;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500749 int l;
750
Joe Perches13d866a2009-08-24 17:29:41 +0000751 rx_blocks = &ring->rx_blocks[j];
Joe Perchesd44570e2009-08-24 17:29:44 +0000752 size = SIZE_OF_BLOCK; /* size is always page size */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700753 tmp_v_addr = pci_alloc_consistent(nic->pdev, size,
754 &tmp_p_addr);
755 if (tmp_v_addr == NULL) {
756 /*
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700757 * In case of failure, free_shared_mem()
758 * is called, which should free any
759 * memory that was alloced till the
Linus Torvalds1da177e2005-04-16 15:20:36 -0700760 * failure happened.
761 */
Ananda Rajuda6971d2005-10-31 16:55:31 -0500762 rx_blocks->block_virt_addr = tmp_v_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763 return -ENOMEM;
764 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400765 mem_allocated += size;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700766 memset(tmp_v_addr, 0, size);
Joe Perches4f870322009-08-24 17:29:42 +0000767
768 size = sizeof(struct rxd_info) *
769 rxd_count[nic->rxd_mode];
Ananda Rajuda6971d2005-10-31 16:55:31 -0500770 rx_blocks->block_virt_addr = tmp_v_addr;
771 rx_blocks->block_dma_addr = tmp_p_addr;
Joe Perches4f870322009-08-24 17:29:42 +0000772 rx_blocks->rxds = kmalloc(size, GFP_KERNEL);
Sivakumar Subramani372cc592007-01-31 13:32:57 -0500773 if (!rx_blocks->rxds)
774 return -ENOMEM;
Joe Perches4f870322009-08-24 17:29:42 +0000775 mem_allocated += size;
Joe Perchesd44570e2009-08-24 17:29:44 +0000776 for (l = 0; l < rxd_count[nic->rxd_mode]; l++) {
Ananda Rajuda6971d2005-10-31 16:55:31 -0500777 rx_blocks->rxds[l].virt_addr =
778 rx_blocks->block_virt_addr +
779 (rxd_size[nic->rxd_mode] * l);
780 rx_blocks->rxds[l].dma_addr =
781 rx_blocks->block_dma_addr +
782 (rxd_size[nic->rxd_mode] * l);
783 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700784 }
785 /* Interlinking all Rx Blocks */
786 for (j = 0; j < blk_cnt; j++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000787 int next = (j + 1) % blk_cnt;
788 tmp_v_addr = ring->rx_blocks[j].block_virt_addr;
789 tmp_v_addr_next = ring->rx_blocks[next].block_virt_addr;
790 tmp_p_addr = ring->rx_blocks[j].block_dma_addr;
791 tmp_p_addr_next = ring->rx_blocks[next].block_dma_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700792
Joe Perches43d620c2011-06-16 19:08:06 +0000793 pre_rxd_blk = tmp_v_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700794 pre_rxd_blk->reserved_2_pNext_RxD_block =
Joe Perchesd44570e2009-08-24 17:29:44 +0000795 (unsigned long)tmp_v_addr_next;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700796 pre_rxd_blk->pNext_RxD_Blk_physical =
Joe Perchesd44570e2009-08-24 17:29:44 +0000797 (u64)tmp_p_addr_next;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700798 }
799 }
Veena Parat6d517a22007-07-23 02:20:51 -0400800 if (nic->rxd_mode == RXD_MODE_3B) {
Ananda Rajuda6971d2005-10-31 16:55:31 -0500801 /*
802 * Allocation of Storages for buffer addresses in 2BUFF mode
803 * and the buffers as well.
804 */
805 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000806 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
807 struct ring_info *ring = &mac_control->rings[i];
808
809 blk_cnt = rx_cfg->num_rxd /
Joe Perchesd44570e2009-08-24 17:29:44 +0000810 (rxd_count[nic->rxd_mode] + 1);
Joe Perches4f870322009-08-24 17:29:42 +0000811 size = sizeof(struct buffAdd *) * blk_cnt;
812 ring->ba = kmalloc(size, GFP_KERNEL);
Joe Perches13d866a2009-08-24 17:29:41 +0000813 if (!ring->ba)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700814 return -ENOMEM;
Joe Perches4f870322009-08-24 17:29:42 +0000815 mem_allocated += size;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500816 for (j = 0; j < blk_cnt; j++) {
817 int k = 0;
Joe Perches4f870322009-08-24 17:29:42 +0000818
819 size = sizeof(struct buffAdd) *
820 (rxd_count[nic->rxd_mode] + 1);
821 ring->ba[j] = kmalloc(size, GFP_KERNEL);
Joe Perches13d866a2009-08-24 17:29:41 +0000822 if (!ring->ba[j])
Linus Torvalds1da177e2005-04-16 15:20:36 -0700823 return -ENOMEM;
Joe Perches4f870322009-08-24 17:29:42 +0000824 mem_allocated += size;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500825 while (k != rxd_count[nic->rxd_mode]) {
Joe Perches13d866a2009-08-24 17:29:41 +0000826 ba = &ring->ba[j][k];
Joe Perches4f870322009-08-24 17:29:42 +0000827 size = BUF0_LEN + ALIGN_SIZE;
828 ba->ba_0_org = kmalloc(size, GFP_KERNEL);
Ananda Rajuda6971d2005-10-31 16:55:31 -0500829 if (!ba->ba_0_org)
830 return -ENOMEM;
Joe Perches4f870322009-08-24 17:29:42 +0000831 mem_allocated += size;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500832 tmp = (unsigned long)ba->ba_0_org;
833 tmp += ALIGN_SIZE;
Joe Perchesd44570e2009-08-24 17:29:44 +0000834 tmp &= ~((unsigned long)ALIGN_SIZE);
835 ba->ba_0 = (void *)tmp;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500836
Joe Perches4f870322009-08-24 17:29:42 +0000837 size = BUF1_LEN + ALIGN_SIZE;
838 ba->ba_1_org = kmalloc(size, GFP_KERNEL);
Ananda Rajuda6971d2005-10-31 16:55:31 -0500839 if (!ba->ba_1_org)
840 return -ENOMEM;
Joe Perches4f870322009-08-24 17:29:42 +0000841 mem_allocated += size;
Joe Perchesd44570e2009-08-24 17:29:44 +0000842 tmp = (unsigned long)ba->ba_1_org;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500843 tmp += ALIGN_SIZE;
Joe Perchesd44570e2009-08-24 17:29:44 +0000844 tmp &= ~((unsigned long)ALIGN_SIZE);
845 ba->ba_1 = (void *)tmp;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500846 k++;
847 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700848 }
849 }
850 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700851
852 /* Allocation and initialization of Statistics block */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -0500853 size = sizeof(struct stat_block);
Joe Perchesd44570e2009-08-24 17:29:44 +0000854 mac_control->stats_mem =
855 pci_alloc_consistent(nic->pdev, size,
856 &mac_control->stats_mem_phy);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700857
858 if (!mac_control->stats_mem) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700859 /*
860 * In case of failure, free_shared_mem() is called, which
861 * should free any memory that was alloced till the
Linus Torvalds1da177e2005-04-16 15:20:36 -0700862 * failure happened.
863 */
864 return -ENOMEM;
865 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400866 mem_allocated += size;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700867 mac_control->stats_mem_sz = size;
868
869 tmp_v_addr = mac_control->stats_mem;
Joe Perches43d620c2011-06-16 19:08:06 +0000870 mac_control->stats_info = tmp_v_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700871 memset(tmp_v_addr, 0, size);
Breno Leitao3a228132010-03-04 10:40:44 +0000872 DBG_PRINT(INIT_DBG, "%s: Ring Mem PHY: 0x%llx\n",
873 dev_name(&nic->pdev->dev), (unsigned long long)tmp_p_addr);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400874 mac_control->stats_info->sw_stat.mem_allocated += mem_allocated;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700875 return SUCCESS;
876}
877
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -0700878/**
879 * free_shared_mem - Free the allocated Memory
Linus Torvalds1da177e2005-04-16 15:20:36 -0700880 * @nic: Device private variable.
881 * Description: This function is to free all memory locations allocated by
882 * the init_shared_mem() function and return it to the kernel.
883 */
884
885static void free_shared_mem(struct s2io_nic *nic)
886{
887 int i, j, blk_cnt, size;
888 void *tmp_v_addr;
889 dma_addr_t tmp_p_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700890 int lst_size, lst_per_page;
Micah Gruber8910b492007-07-09 11:29:04 +0800891 struct net_device *dev;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -0400892 int page_num = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +0000893 struct config_param *config;
894 struct mac_info *mac_control;
895 struct stat_block *stats;
896 struct swStat *swstats;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700897
898 if (!nic)
899 return;
900
Micah Gruber8910b492007-07-09 11:29:04 +0800901 dev = nic->dev;
902
Linus Torvalds1da177e2005-04-16 15:20:36 -0700903 config = &nic->config;
Joe Perchesffb5df62009-08-24 17:29:47 +0000904 mac_control = &nic->mac_control;
905 stats = mac_control->stats_info;
906 swstats = &stats->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700907
Joe Perchesd44570e2009-08-24 17:29:44 +0000908 lst_size = sizeof(struct TxD) * config->max_txds;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700909 lst_per_page = PAGE_SIZE / lst_size;
910
911 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000912 struct fifo_info *fifo = &mac_control->fifos[i];
913 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
914
915 page_num = TXD_MEM_PAGE_CNT(tx_cfg->fifo_len, lst_per_page);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700916 for (j = 0; j < page_num; j++) {
917 int mem_blks = (j * lst_per_page);
Joe Perches13d866a2009-08-24 17:29:41 +0000918 struct list_info_hold *fli;
919
920 if (!fifo->list_info)
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400921 return;
Joe Perches13d866a2009-08-24 17:29:41 +0000922
923 fli = &fifo->list_info[mem_blks];
924 if (!fli->list_virt_addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925 break;
926 pci_free_consistent(nic->pdev, PAGE_SIZE,
Joe Perches13d866a2009-08-24 17:29:41 +0000927 fli->list_virt_addr,
928 fli->list_phy_addr);
Joe Perchesffb5df62009-08-24 17:29:47 +0000929 swstats->mem_freed += PAGE_SIZE;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700930 }
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700931 /* If we got a zero DMA address during allocation,
932 * free the page now
933 */
934 if (mac_control->zerodma_virt_addr) {
935 pci_free_consistent(nic->pdev, PAGE_SIZE,
936 mac_control->zerodma_virt_addr,
937 (dma_addr_t)0);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400938 DBG_PRINT(INIT_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +0000939 "%s: Freeing TxDL with zero DMA address. "
940 "Virtual address %p\n",
941 dev->name, mac_control->zerodma_virt_addr);
Joe Perchesffb5df62009-08-24 17:29:47 +0000942 swstats->mem_freed += PAGE_SIZE;
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -0700943 }
Joe Perches13d866a2009-08-24 17:29:41 +0000944 kfree(fifo->list_info);
Joe Perches82c2d022009-08-24 17:29:48 +0000945 swstats->mem_freed += tx_cfg->fifo_len *
Joe Perchesd44570e2009-08-24 17:29:44 +0000946 sizeof(struct list_info_hold);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700947 }
948
Linus Torvalds1da177e2005-04-16 15:20:36 -0700949 size = SIZE_OF_BLOCK;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700950 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000951 struct ring_info *ring = &mac_control->rings[i];
952
953 blk_cnt = ring->block_count;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700954 for (j = 0; j < blk_cnt; j++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000955 tmp_v_addr = ring->rx_blocks[j].block_virt_addr;
956 tmp_p_addr = ring->rx_blocks[j].block_dma_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957 if (tmp_v_addr == NULL)
958 break;
959 pci_free_consistent(nic->pdev, size,
960 tmp_v_addr, tmp_p_addr);
Joe Perchesffb5df62009-08-24 17:29:47 +0000961 swstats->mem_freed += size;
Joe Perches13d866a2009-08-24 17:29:41 +0000962 kfree(ring->rx_blocks[j].rxds);
Joe Perchesffb5df62009-08-24 17:29:47 +0000963 swstats->mem_freed += sizeof(struct rxd_info) *
964 rxd_count[nic->rxd_mode];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700965 }
966 }
967
Veena Parat6d517a22007-07-23 02:20:51 -0400968 if (nic->rxd_mode == RXD_MODE_3B) {
Ananda Rajuda6971d2005-10-31 16:55:31 -0500969 /* Freeing buffer storage addresses in 2BUFF mode. */
970 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +0000971 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
972 struct ring_info *ring = &mac_control->rings[i];
973
974 blk_cnt = rx_cfg->num_rxd /
975 (rxd_count[nic->rxd_mode] + 1);
Ananda Rajuda6971d2005-10-31 16:55:31 -0500976 for (j = 0; j < blk_cnt; j++) {
977 int k = 0;
Joe Perches13d866a2009-08-24 17:29:41 +0000978 if (!ring->ba[j])
Ananda Rajuda6971d2005-10-31 16:55:31 -0500979 continue;
980 while (k != rxd_count[nic->rxd_mode]) {
Joe Perches13d866a2009-08-24 17:29:41 +0000981 struct buffAdd *ba = &ring->ba[j][k];
Ananda Rajuda6971d2005-10-31 16:55:31 -0500982 kfree(ba->ba_0_org);
Joe Perchesffb5df62009-08-24 17:29:47 +0000983 swstats->mem_freed +=
984 BUF0_LEN + ALIGN_SIZE;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500985 kfree(ba->ba_1_org);
Joe Perchesffb5df62009-08-24 17:29:47 +0000986 swstats->mem_freed +=
987 BUF1_LEN + ALIGN_SIZE;
Ananda Rajuda6971d2005-10-31 16:55:31 -0500988 k++;
989 }
Joe Perches13d866a2009-08-24 17:29:41 +0000990 kfree(ring->ba[j]);
Joe Perchesffb5df62009-08-24 17:29:47 +0000991 swstats->mem_freed += sizeof(struct buffAdd) *
992 (rxd_count[nic->rxd_mode] + 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700993 }
Joe Perches13d866a2009-08-24 17:29:41 +0000994 kfree(ring->ba);
Joe Perchesffb5df62009-08-24 17:29:47 +0000995 swstats->mem_freed += sizeof(struct buffAdd *) *
996 blk_cnt;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700997 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700998 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700999
Surjit Reang2fda0962008-01-24 02:08:59 -08001000 for (i = 0; i < nic->config.tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00001001 struct fifo_info *fifo = &mac_control->fifos[i];
1002 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
1003
1004 if (fifo->ufo_in_band_v) {
Joe Perchesffb5df62009-08-24 17:29:47 +00001005 swstats->mem_freed += tx_cfg->fifo_len *
1006 sizeof(u64);
Joe Perches13d866a2009-08-24 17:29:41 +00001007 kfree(fifo->ufo_in_band_v);
Surjit Reang2fda0962008-01-24 02:08:59 -08001008 }
1009 }
1010
Linus Torvalds1da177e2005-04-16 15:20:36 -07001011 if (mac_control->stats_mem) {
Joe Perchesffb5df62009-08-24 17:29:47 +00001012 swstats->mem_freed += mac_control->stats_mem_sz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001013 pci_free_consistent(nic->pdev,
1014 mac_control->stats_mem_sz,
1015 mac_control->stats_mem,
1016 mac_control->stats_mem_phy);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04001017 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001018}
1019
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001020/**
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001021 * s2io_verify_pci_mode -
1022 */
1023
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001024static int s2io_verify_pci_mode(struct s2io_nic *nic)
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001025{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001026 struct XENA_dev_config __iomem *bar0 = nic->bar0;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001027 register u64 val64 = 0;
1028 int mode;
1029
1030 val64 = readq(&bar0->pci_mode);
1031 mode = (u8)GET_PCI_MODE(val64);
1032
Joe Perchesd44570e2009-08-24 17:29:44 +00001033 if (val64 & PCI_MODE_UNKNOWN_MODE)
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001034 return -1; /* Unknown PCI mode */
1035 return mode;
1036}
1037
Ananda Rajuc92ca042006-04-21 19:18:03 -04001038#define NEC_VENID 0x1033
1039#define NEC_DEVID 0x0125
1040static int s2io_on_nec_bridge(struct pci_dev *s2io_pdev)
1041{
1042 struct pci_dev *tdev = NULL;
Alan Cox26d36b62006-09-15 15:22:51 +01001043 while ((tdev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, tdev)) != NULL) {
1044 if (tdev->vendor == NEC_VENID && tdev->device == NEC_DEVID) {
Ilpo Järvinen7ad62dbc2008-05-13 14:16:54 +03001045 if (tdev->bus == s2io_pdev->bus->parent) {
Alan Cox26d36b62006-09-15 15:22:51 +01001046 pci_dev_put(tdev);
Ananda Rajuc92ca042006-04-21 19:18:03 -04001047 return 1;
Ilpo Järvinen7ad62dbc2008-05-13 14:16:54 +03001048 }
Ananda Rajuc92ca042006-04-21 19:18:03 -04001049 }
1050 }
1051 return 0;
1052}
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001053
Adrian Bunk7b32a312006-05-16 17:30:50 +02001054static int bus_speed[8] = {33, 133, 133, 200, 266, 133, 200, 266};
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001055/**
1056 * s2io_print_pci_mode -
1057 */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001058static int s2io_print_pci_mode(struct s2io_nic *nic)
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001059{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001060 struct XENA_dev_config __iomem *bar0 = nic->bar0;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001061 register u64 val64 = 0;
1062 int mode;
1063 struct config_param *config = &nic->config;
Joe Perches9e39f7c2009-08-25 08:52:00 +00001064 const char *pcimode;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001065
1066 val64 = readq(&bar0->pci_mode);
1067 mode = (u8)GET_PCI_MODE(val64);
1068
Joe Perchesd44570e2009-08-24 17:29:44 +00001069 if (val64 & PCI_MODE_UNKNOWN_MODE)
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001070 return -1; /* Unknown PCI mode */
1071
Ananda Rajuc92ca042006-04-21 19:18:03 -04001072 config->bus_speed = bus_speed[mode];
1073
1074 if (s2io_on_nec_bridge(nic->pdev)) {
1075 DBG_PRINT(ERR_DBG, "%s: Device is on PCI-E bus\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00001076 nic->dev->name);
Ananda Rajuc92ca042006-04-21 19:18:03 -04001077 return mode;
1078 }
1079
Joe Perchesd44570e2009-08-24 17:29:44 +00001080 switch (mode) {
1081 case PCI_MODE_PCI_33:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001082 pcimode = "33MHz PCI bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001083 break;
1084 case PCI_MODE_PCI_66:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001085 pcimode = "66MHz PCI bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001086 break;
1087 case PCI_MODE_PCIX_M1_66:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001088 pcimode = "66MHz PCIX(M1) bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001089 break;
1090 case PCI_MODE_PCIX_M1_100:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001091 pcimode = "100MHz PCIX(M1) bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001092 break;
1093 case PCI_MODE_PCIX_M1_133:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001094 pcimode = "133MHz PCIX(M1) bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001095 break;
1096 case PCI_MODE_PCIX_M2_66:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001097 pcimode = "133MHz PCIX(M2) bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001098 break;
1099 case PCI_MODE_PCIX_M2_100:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001100 pcimode = "200MHz PCIX(M2) bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001101 break;
1102 case PCI_MODE_PCIX_M2_133:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001103 pcimode = "266MHz PCIX(M2) bus";
Joe Perchesd44570e2009-08-24 17:29:44 +00001104 break;
1105 default:
Joe Perches9e39f7c2009-08-25 08:52:00 +00001106 pcimode = "unsupported bus!";
1107 mode = -1;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001108 }
1109
Joe Perches9e39f7c2009-08-25 08:52:00 +00001110 DBG_PRINT(ERR_DBG, "%s: Device is on %d bit %s\n",
1111 nic->dev->name, val64 & PCI_MODE_32_BITS ? 32 : 64, pcimode);
1112
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001113 return mode;
1114}
1115
1116/**
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001117 * init_tti - Initialization transmit traffic interrupt scheme
1118 * @nic: device private variable
1119 * @link: link status (UP/DOWN) used to enable/disable continuous
1120 * transmit interrupts
1121 * Description: The function configures transmit traffic interrupts
1122 * Return Value: SUCCESS on success and
1123 * '-1' on failure
1124 */
1125
Adrian Bunk0d66afe2008-03-04 15:19:22 -08001126static int init_tti(struct s2io_nic *nic, int link)
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001127{
1128 struct XENA_dev_config __iomem *bar0 = nic->bar0;
1129 register u64 val64 = 0;
1130 int i;
Joe Perchesffb5df62009-08-24 17:29:47 +00001131 struct config_param *config = &nic->config;
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001132
1133 for (i = 0; i < config->tx_fifo_num; i++) {
1134 /*
1135 * TTI Initialization. Default Tx timer gets us about
1136 * 250 interrupts per sec. Continuous interrupts are enabled
1137 * by default.
1138 */
1139 if (nic->device_type == XFRAME_II_DEVICE) {
1140 int count = (nic->config.bus_speed * 125)/2;
1141 val64 = TTI_DATA1_MEM_TX_TIMER_VAL(count);
1142 } else
1143 val64 = TTI_DATA1_MEM_TX_TIMER_VAL(0x2078);
1144
1145 val64 |= TTI_DATA1_MEM_TX_URNG_A(0xA) |
Joe Perchesd44570e2009-08-24 17:29:44 +00001146 TTI_DATA1_MEM_TX_URNG_B(0x10) |
1147 TTI_DATA1_MEM_TX_URNG_C(0x30) |
1148 TTI_DATA1_MEM_TX_TIMER_AC_EN;
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04001149 if (i == 0)
1150 if (use_continuous_tx_intrs && (link == LINK_UP))
1151 val64 |= TTI_DATA1_MEM_TX_TIMER_CI_EN;
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001152 writeq(val64, &bar0->tti_data1_mem);
1153
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04001154 if (nic->config.intr_type == MSI_X) {
1155 val64 = TTI_DATA2_MEM_TX_UFC_A(0x10) |
1156 TTI_DATA2_MEM_TX_UFC_B(0x100) |
1157 TTI_DATA2_MEM_TX_UFC_C(0x200) |
1158 TTI_DATA2_MEM_TX_UFC_D(0x300);
1159 } else {
1160 if ((nic->config.tx_steering_type ==
Joe Perchesd44570e2009-08-24 17:29:44 +00001161 TX_DEFAULT_STEERING) &&
1162 (config->tx_fifo_num > 1) &&
1163 (i >= nic->udp_fifo_idx) &&
1164 (i < (nic->udp_fifo_idx +
1165 nic->total_udp_fifos)))
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04001166 val64 = TTI_DATA2_MEM_TX_UFC_A(0x50) |
1167 TTI_DATA2_MEM_TX_UFC_B(0x80) |
1168 TTI_DATA2_MEM_TX_UFC_C(0x100) |
1169 TTI_DATA2_MEM_TX_UFC_D(0x120);
1170 else
1171 val64 = TTI_DATA2_MEM_TX_UFC_A(0x10) |
1172 TTI_DATA2_MEM_TX_UFC_B(0x20) |
1173 TTI_DATA2_MEM_TX_UFC_C(0x40) |
1174 TTI_DATA2_MEM_TX_UFC_D(0x80);
1175 }
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001176
1177 writeq(val64, &bar0->tti_data2_mem);
1178
Joe Perchesd44570e2009-08-24 17:29:44 +00001179 val64 = TTI_CMD_MEM_WE |
1180 TTI_CMD_MEM_STROBE_NEW_CMD |
1181 TTI_CMD_MEM_OFFSET(i);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001182 writeq(val64, &bar0->tti_command_mem);
1183
1184 if (wait_for_cmd_complete(&bar0->tti_command_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00001185 TTI_CMD_MEM_STROBE_NEW_CMD,
1186 S2IO_BIT_RESET) != SUCCESS)
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001187 return FAILURE;
1188 }
1189
1190 return SUCCESS;
1191}
1192
1193/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001194 * init_nic - Initialization of hardware
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001195 * @nic: device private variable
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001196 * Description: The function sequentially configures every block
1197 * of the H/W from their reset values.
1198 * Return Value: SUCCESS on success and
Linus Torvalds1da177e2005-04-16 15:20:36 -07001199 * '-1' on failure (endian settings incorrect).
1200 */
1201
1202static int init_nic(struct s2io_nic *nic)
1203{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001204 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001205 struct net_device *dev = nic->dev;
1206 register u64 val64 = 0;
1207 void __iomem *add;
1208 u32 time;
1209 int i, j;
Ananda Rajuc92ca042006-04-21 19:18:03 -04001210 int dtx_cnt = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001211 unsigned long long mem_share;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001212 int mem_size;
Joe Perchesffb5df62009-08-24 17:29:47 +00001213 struct config_param *config = &nic->config;
1214 struct mac_info *mac_control = &nic->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001215
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001216 /* to set the swapper controle on the card */
Joe Perchesd44570e2009-08-24 17:29:44 +00001217 if (s2io_set_swapper(nic)) {
1218 DBG_PRINT(ERR_DBG, "ERROR: Setting Swapper failed\n");
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05001219 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001220 }
1221
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001222 /*
1223 * Herc requires EOI to be removed from reset before XGXS, so..
1224 */
1225 if (nic->device_type & XFRAME_II_DEVICE) {
1226 val64 = 0xA500000000ULL;
1227 writeq(val64, &bar0->sw_reset);
1228 msleep(500);
1229 val64 = readq(&bar0->sw_reset);
1230 }
1231
Linus Torvalds1da177e2005-04-16 15:20:36 -07001232 /* Remove XGXS from reset state */
1233 val64 = 0;
1234 writeq(val64, &bar0->sw_reset);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001235 msleep(500);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001236 val64 = readq(&bar0->sw_reset);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001237
Sreenivasa Honnur79620242007-12-05 23:59:28 -05001238 /* Ensure that it's safe to access registers by checking
1239 * RIC_RUNNING bit is reset. Check is valid only for XframeII.
1240 */
1241 if (nic->device_type == XFRAME_II_DEVICE) {
1242 for (i = 0; i < 50; i++) {
1243 val64 = readq(&bar0->adapter_status);
1244 if (!(val64 & ADAPTER_STATUS_RIC_RUNNING))
1245 break;
1246 msleep(10);
1247 }
1248 if (i == 50)
1249 return -ENODEV;
1250 }
1251
Linus Torvalds1da177e2005-04-16 15:20:36 -07001252 /* Enable Receiving broadcasts */
1253 add = &bar0->mac_cfg;
1254 val64 = readq(&bar0->mac_cfg);
1255 val64 |= MAC_RMAC_BCAST_ENABLE;
1256 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
Joe Perchesd44570e2009-08-24 17:29:44 +00001257 writel((u32)val64, add);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001258 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1259 writel((u32) (val64 >> 32), (add + 4));
1260
1261 /* Read registers in all blocks */
1262 val64 = readq(&bar0->mac_int_mask);
1263 val64 = readq(&bar0->mc_int_mask);
1264 val64 = readq(&bar0->xgxs_int_mask);
1265
1266 /* Set MTU */
1267 val64 = dev->mtu;
1268 writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len);
1269
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001270 if (nic->device_type & XFRAME_II_DEVICE) {
1271 while (herc_act_dtx_cfg[dtx_cnt] != END_SIGN) {
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07001272 SPECIAL_REG_WRITE(herc_act_dtx_cfg[dtx_cnt],
Linus Torvalds1da177e2005-04-16 15:20:36 -07001273 &bar0->dtx_control, UF);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001274 if (dtx_cnt & 0x1)
1275 msleep(1); /* Necessary!! */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001276 dtx_cnt++;
1277 }
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001278 } else {
Ananda Rajuc92ca042006-04-21 19:18:03 -04001279 while (xena_dtx_cfg[dtx_cnt] != END_SIGN) {
1280 SPECIAL_REG_WRITE(xena_dtx_cfg[dtx_cnt],
1281 &bar0->dtx_control, UF);
1282 val64 = readq(&bar0->dtx_control);
1283 dtx_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001284 }
1285 }
1286
1287 /* Tx DMA Initialization */
1288 val64 = 0;
1289 writeq(val64, &bar0->tx_fifo_partition_0);
1290 writeq(val64, &bar0->tx_fifo_partition_1);
1291 writeq(val64, &bar0->tx_fifo_partition_2);
1292 writeq(val64, &bar0->tx_fifo_partition_3);
1293
Linus Torvalds1da177e2005-04-16 15:20:36 -07001294 for (i = 0, j = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00001295 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
1296
1297 val64 |= vBIT(tx_cfg->fifo_len - 1, ((j * 32) + 19), 13) |
1298 vBIT(tx_cfg->fifo_priority, ((j * 32) + 5), 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001299
1300 if (i == (config->tx_fifo_num - 1)) {
1301 if (i % 2 == 0)
1302 i++;
1303 }
1304
1305 switch (i) {
1306 case 1:
1307 writeq(val64, &bar0->tx_fifo_partition_0);
1308 val64 = 0;
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001309 j = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001310 break;
1311 case 3:
1312 writeq(val64, &bar0->tx_fifo_partition_1);
1313 val64 = 0;
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001314 j = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001315 break;
1316 case 5:
1317 writeq(val64, &bar0->tx_fifo_partition_2);
1318 val64 = 0;
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001319 j = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001320 break;
1321 case 7:
1322 writeq(val64, &bar0->tx_fifo_partition_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001323 val64 = 0;
1324 j = 0;
1325 break;
1326 default:
1327 j++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001328 break;
1329 }
1330 }
1331
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001332 /*
1333 * Disable 4 PCCs for Xena1, 2 and 3 as per H/W bug
1334 * SXE-008 TRANSMIT DMA ARBITRATION ISSUE.
1335 */
Joe Perchesd44570e2009-08-24 17:29:44 +00001336 if ((nic->device_type == XFRAME_I_DEVICE) && (nic->pdev->revision < 4))
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001337 writeq(PCC_ENABLE_FOUR, &bar0->pcc_enable);
1338
Linus Torvalds1da177e2005-04-16 15:20:36 -07001339 val64 = readq(&bar0->tx_fifo_partition_0);
1340 DBG_PRINT(INIT_DBG, "Fifo partition at: 0x%p is: 0x%llx\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00001341 &bar0->tx_fifo_partition_0, (unsigned long long)val64);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001342
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001343 /*
1344 * Initialization of Tx_PA_CONFIG register to ignore packet
Linus Torvalds1da177e2005-04-16 15:20:36 -07001345 * integrity checking.
1346 */
1347 val64 = readq(&bar0->tx_pa_cfg);
Joe Perchesd44570e2009-08-24 17:29:44 +00001348 val64 |= TX_PA_CFG_IGNORE_FRM_ERR |
1349 TX_PA_CFG_IGNORE_SNAP_OUI |
1350 TX_PA_CFG_IGNORE_LLC_CTRL |
1351 TX_PA_CFG_IGNORE_L2_ERR;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001352 writeq(val64, &bar0->tx_pa_cfg);
1353
1354 /* Rx DMA intialization. */
1355 val64 = 0;
1356 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00001357 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
1358
1359 val64 |= vBIT(rx_cfg->ring_priority, (5 + (i * 8)), 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001360 }
1361 writeq(val64, &bar0->rx_queue_priority);
1362
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001363 /*
1364 * Allocating equal share of memory to all the
Linus Torvalds1da177e2005-04-16 15:20:36 -07001365 * configured Rings.
1366 */
1367 val64 = 0;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001368 if (nic->device_type & XFRAME_II_DEVICE)
1369 mem_size = 32;
1370 else
1371 mem_size = 64;
1372
Linus Torvalds1da177e2005-04-16 15:20:36 -07001373 for (i = 0; i < config->rx_ring_num; i++) {
1374 switch (i) {
1375 case 0:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001376 mem_share = (mem_size / config->rx_ring_num +
1377 mem_size % config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001378 val64 |= RX_QUEUE_CFG_Q0_SZ(mem_share);
1379 continue;
1380 case 1:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001381 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001382 val64 |= RX_QUEUE_CFG_Q1_SZ(mem_share);
1383 continue;
1384 case 2:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001385 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001386 val64 |= RX_QUEUE_CFG_Q2_SZ(mem_share);
1387 continue;
1388 case 3:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001389 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001390 val64 |= RX_QUEUE_CFG_Q3_SZ(mem_share);
1391 continue;
1392 case 4:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001393 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001394 val64 |= RX_QUEUE_CFG_Q4_SZ(mem_share);
1395 continue;
1396 case 5:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001397 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001398 val64 |= RX_QUEUE_CFG_Q5_SZ(mem_share);
1399 continue;
1400 case 6:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001401 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001402 val64 |= RX_QUEUE_CFG_Q6_SZ(mem_share);
1403 continue;
1404 case 7:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001405 mem_share = (mem_size / config->rx_ring_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001406 val64 |= RX_QUEUE_CFG_Q7_SZ(mem_share);
1407 continue;
1408 }
1409 }
1410 writeq(val64, &bar0->rx_queue_cfg);
1411
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001412 /*
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001413 * Filling Tx round robin registers
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001414 * as per the number of FIFOs for equal scheduling priority
Linus Torvalds1da177e2005-04-16 15:20:36 -07001415 */
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001416 switch (config->tx_fifo_num) {
1417 case 1:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001418 val64 = 0x0;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001419 writeq(val64, &bar0->tx_w_round_robin_0);
1420 writeq(val64, &bar0->tx_w_round_robin_1);
1421 writeq(val64, &bar0->tx_w_round_robin_2);
1422 writeq(val64, &bar0->tx_w_round_robin_3);
1423 writeq(val64, &bar0->tx_w_round_robin_4);
1424 break;
1425 case 2:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001426 val64 = 0x0001000100010001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001427 writeq(val64, &bar0->tx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001428 writeq(val64, &bar0->tx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001429 writeq(val64, &bar0->tx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001430 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001431 val64 = 0x0001000100000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001432 writeq(val64, &bar0->tx_w_round_robin_4);
1433 break;
1434 case 3:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001435 val64 = 0x0001020001020001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001436 writeq(val64, &bar0->tx_w_round_robin_0);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001437 val64 = 0x0200010200010200ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001438 writeq(val64, &bar0->tx_w_round_robin_1);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001439 val64 = 0x0102000102000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001440 writeq(val64, &bar0->tx_w_round_robin_2);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001441 val64 = 0x0001020001020001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001442 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001443 val64 = 0x0200010200000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001444 writeq(val64, &bar0->tx_w_round_robin_4);
1445 break;
1446 case 4:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001447 val64 = 0x0001020300010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001448 writeq(val64, &bar0->tx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001449 writeq(val64, &bar0->tx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001450 writeq(val64, &bar0->tx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001451 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001452 val64 = 0x0001020300000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001453 writeq(val64, &bar0->tx_w_round_robin_4);
1454 break;
1455 case 5:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001456 val64 = 0x0001020304000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001457 writeq(val64, &bar0->tx_w_round_robin_0);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001458 val64 = 0x0304000102030400ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001459 writeq(val64, &bar0->tx_w_round_robin_1);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001460 val64 = 0x0102030400010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001461 writeq(val64, &bar0->tx_w_round_robin_2);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001462 val64 = 0x0400010203040001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001463 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001464 val64 = 0x0203040000000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001465 writeq(val64, &bar0->tx_w_round_robin_4);
1466 break;
1467 case 6:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001468 val64 = 0x0001020304050001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001469 writeq(val64, &bar0->tx_w_round_robin_0);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001470 val64 = 0x0203040500010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001471 writeq(val64, &bar0->tx_w_round_robin_1);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001472 val64 = 0x0405000102030405ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001473 writeq(val64, &bar0->tx_w_round_robin_2);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001474 val64 = 0x0001020304050001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001475 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001476 val64 = 0x0203040500000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001477 writeq(val64, &bar0->tx_w_round_robin_4);
1478 break;
1479 case 7:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001480 val64 = 0x0001020304050600ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001481 writeq(val64, &bar0->tx_w_round_robin_0);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001482 val64 = 0x0102030405060001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001483 writeq(val64, &bar0->tx_w_round_robin_1);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001484 val64 = 0x0203040506000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001485 writeq(val64, &bar0->tx_w_round_robin_2);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001486 val64 = 0x0304050600010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001487 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001488 val64 = 0x0405060000000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001489 writeq(val64, &bar0->tx_w_round_robin_4);
1490 break;
1491 case 8:
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001492 val64 = 0x0001020304050607ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001493 writeq(val64, &bar0->tx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001494 writeq(val64, &bar0->tx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001495 writeq(val64, &bar0->tx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001496 writeq(val64, &bar0->tx_w_round_robin_3);
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001497 val64 = 0x0001020300000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001498 writeq(val64, &bar0->tx_w_round_robin_4);
1499 break;
1500 }
1501
Ananda Rajub41477f2006-07-24 19:52:49 -04001502 /* Enable all configured Tx FIFO partitions */
Ananda Raju5d3213c2006-04-21 19:23:26 -04001503 val64 = readq(&bar0->tx_fifo_partition_0);
1504 val64 |= (TX_FIFO_PARTITION_EN);
1505 writeq(val64, &bar0->tx_fifo_partition_0);
1506
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001507 /* Filling the Rx round robin registers as per the
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001508 * number of Rings and steering based on QoS with
1509 * equal priority.
1510 */
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001511 switch (config->rx_ring_num) {
1512 case 1:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001513 val64 = 0x0;
1514 writeq(val64, &bar0->rx_w_round_robin_0);
1515 writeq(val64, &bar0->rx_w_round_robin_1);
1516 writeq(val64, &bar0->rx_w_round_robin_2);
1517 writeq(val64, &bar0->rx_w_round_robin_3);
1518 writeq(val64, &bar0->rx_w_round_robin_4);
1519
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001520 val64 = 0x8080808080808080ULL;
1521 writeq(val64, &bar0->rts_qos_steering);
1522 break;
1523 case 2:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001524 val64 = 0x0001000100010001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001525 writeq(val64, &bar0->rx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001526 writeq(val64, &bar0->rx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001527 writeq(val64, &bar0->rx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001528 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001529 val64 = 0x0001000100000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001530 writeq(val64, &bar0->rx_w_round_robin_4);
1531
1532 val64 = 0x8080808040404040ULL;
1533 writeq(val64, &bar0->rts_qos_steering);
1534 break;
1535 case 3:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001536 val64 = 0x0001020001020001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001537 writeq(val64, &bar0->rx_w_round_robin_0);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001538 val64 = 0x0200010200010200ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001539 writeq(val64, &bar0->rx_w_round_robin_1);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001540 val64 = 0x0102000102000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001541 writeq(val64, &bar0->rx_w_round_robin_2);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001542 val64 = 0x0001020001020001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001543 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001544 val64 = 0x0200010200000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001545 writeq(val64, &bar0->rx_w_round_robin_4);
1546
1547 val64 = 0x8080804040402020ULL;
1548 writeq(val64, &bar0->rts_qos_steering);
1549 break;
1550 case 4:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001551 val64 = 0x0001020300010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001552 writeq(val64, &bar0->rx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001553 writeq(val64, &bar0->rx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001554 writeq(val64, &bar0->rx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001555 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001556 val64 = 0x0001020300000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001557 writeq(val64, &bar0->rx_w_round_robin_4);
1558
1559 val64 = 0x8080404020201010ULL;
1560 writeq(val64, &bar0->rts_qos_steering);
1561 break;
1562 case 5:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001563 val64 = 0x0001020304000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001564 writeq(val64, &bar0->rx_w_round_robin_0);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001565 val64 = 0x0304000102030400ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001566 writeq(val64, &bar0->rx_w_round_robin_1);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001567 val64 = 0x0102030400010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001568 writeq(val64, &bar0->rx_w_round_robin_2);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001569 val64 = 0x0400010203040001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001570 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001571 val64 = 0x0203040000000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001572 writeq(val64, &bar0->rx_w_round_robin_4);
1573
1574 val64 = 0x8080404020201008ULL;
1575 writeq(val64, &bar0->rts_qos_steering);
1576 break;
1577 case 6:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001578 val64 = 0x0001020304050001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001579 writeq(val64, &bar0->rx_w_round_robin_0);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001580 val64 = 0x0203040500010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001581 writeq(val64, &bar0->rx_w_round_robin_1);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001582 val64 = 0x0405000102030405ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001583 writeq(val64, &bar0->rx_w_round_robin_2);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001584 val64 = 0x0001020304050001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001585 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001586 val64 = 0x0203040500000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001587 writeq(val64, &bar0->rx_w_round_robin_4);
1588
1589 val64 = 0x8080404020100804ULL;
1590 writeq(val64, &bar0->rts_qos_steering);
1591 break;
1592 case 7:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001593 val64 = 0x0001020304050600ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001594 writeq(val64, &bar0->rx_w_round_robin_0);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001595 val64 = 0x0102030405060001ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001596 writeq(val64, &bar0->rx_w_round_robin_1);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001597 val64 = 0x0203040506000102ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001598 writeq(val64, &bar0->rx_w_round_robin_2);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001599 val64 = 0x0304050600010203ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001600 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001601 val64 = 0x0405060000000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001602 writeq(val64, &bar0->rx_w_round_robin_4);
1603
1604 val64 = 0x8080402010080402ULL;
1605 writeq(val64, &bar0->rts_qos_steering);
1606 break;
1607 case 8:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001608 val64 = 0x0001020304050607ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001609 writeq(val64, &bar0->rx_w_round_robin_0);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001610 writeq(val64, &bar0->rx_w_round_robin_1);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001611 writeq(val64, &bar0->rx_w_round_robin_2);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001612 writeq(val64, &bar0->rx_w_round_robin_3);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04001613 val64 = 0x0001020300000000ULL;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001614 writeq(val64, &bar0->rx_w_round_robin_4);
1615
1616 val64 = 0x8040201008040201ULL;
1617 writeq(val64, &bar0->rts_qos_steering);
1618 break;
1619 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001620
1621 /* UDP Fix */
1622 val64 = 0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001623 for (i = 0; i < 8; i++)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001624 writeq(val64, &bar0->rts_frm_len_n[i]);
1625
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001626 /* Set the default rts frame length for the rings configured */
1627 val64 = MAC_RTS_FRM_LEN_SET(dev->mtu+22);
1628 for (i = 0 ; i < config->rx_ring_num ; i++)
1629 writeq(val64, &bar0->rts_frm_len_n[i]);
1630
1631 /* Set the frame length for the configured rings
1632 * desired by the user
1633 */
1634 for (i = 0; i < config->rx_ring_num; i++) {
1635 /* If rts_frm_len[i] == 0 then it is assumed that user not
1636 * specified frame length steering.
1637 * If the user provides the frame length then program
1638 * the rts_frm_len register for those values or else
1639 * leave it as it is.
1640 */
1641 if (rts_frm_len[i] != 0) {
1642 writeq(MAC_RTS_FRM_LEN_SET(rts_frm_len[i]),
Joe Perchesd44570e2009-08-24 17:29:44 +00001643 &bar0->rts_frm_len_n[i]);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07001644 }
1645 }
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001646
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05001647 /* Disable differentiated services steering logic */
1648 for (i = 0; i < 64; i++) {
1649 if (rts_ds_steer(nic, i, 0) == FAILURE) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00001650 DBG_PRINT(ERR_DBG,
1651 "%s: rts_ds_steer failed on codepoint %d\n",
1652 dev->name, i);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05001653 return -ENODEV;
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05001654 }
1655 }
1656
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001657 /* Program statistics memory */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001658 writeq(mac_control->stats_mem_phy, &bar0->stat_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001659
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001660 if (nic->device_type == XFRAME_II_DEVICE) {
1661 val64 = STAT_BC(0x320);
1662 writeq(val64, &bar0->stat_byte_cnt);
1663 }
1664
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001665 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07001666 * Initializing the sampling rate for the device to calculate the
1667 * bandwidth utilization.
1668 */
1669 val64 = MAC_TX_LINK_UTIL_VAL(tmac_util_period) |
Joe Perchesd44570e2009-08-24 17:29:44 +00001670 MAC_RX_LINK_UTIL_VAL(rmac_util_period);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001671 writeq(val64, &bar0->mac_link_util);
1672
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001673 /*
1674 * Initializing the Transmit and Receive Traffic Interrupt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001675 * Scheme.
1676 */
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001677
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08001678 /* Initialize TTI */
1679 if (SUCCESS != init_tti(nic, nic->last_link_state))
1680 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001681
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001682 /* RTI Initialization */
1683 if (nic->device_type == XFRAME_II_DEVICE) {
1684 /*
1685 * Programmed to generate Apprx 500 Intrs per
1686 * second
1687 */
1688 int count = (nic->config.bus_speed * 125)/4;
1689 val64 = RTI_DATA1_MEM_RX_TIMER_VAL(count);
1690 } else
1691 val64 = RTI_DATA1_MEM_RX_TIMER_VAL(0xFFF);
1692 val64 |= RTI_DATA1_MEM_RX_URNG_A(0xA) |
Joe Perchesd44570e2009-08-24 17:29:44 +00001693 RTI_DATA1_MEM_RX_URNG_B(0x10) |
1694 RTI_DATA1_MEM_RX_URNG_C(0x30) |
1695 RTI_DATA1_MEM_RX_TIMER_AC_EN;
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001696
1697 writeq(val64, &bar0->rti_data1_mem);
1698
1699 val64 = RTI_DATA2_MEM_RX_UFC_A(0x1) |
1700 RTI_DATA2_MEM_RX_UFC_B(0x2) ;
1701 if (nic->config.intr_type == MSI_X)
Joe Perchesd44570e2009-08-24 17:29:44 +00001702 val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x20) |
1703 RTI_DATA2_MEM_RX_UFC_D(0x40));
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001704 else
Joe Perchesd44570e2009-08-24 17:29:44 +00001705 val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x40) |
1706 RTI_DATA2_MEM_RX_UFC_D(0x80));
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001707 writeq(val64, &bar0->rti_data2_mem);
1708
1709 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00001710 val64 = RTI_CMD_MEM_WE |
1711 RTI_CMD_MEM_STROBE_NEW_CMD |
1712 RTI_CMD_MEM_OFFSET(i);
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001713 writeq(val64, &bar0->rti_command_mem);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001714
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001715 /*
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001716 * Once the operation completes, the Strobe bit of the
1717 * command register will be reset. We poll for this
1718 * particular condition. We wait for a maximum of 500ms
1719 * for the operation to complete, if it's not complete
1720 * by then we return error.
1721 */
1722 time = 0;
Tobias Klauserf957bcf2009-06-04 23:07:59 +00001723 while (true) {
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001724 val64 = readq(&bar0->rti_command_mem);
1725 if (!(val64 & RTI_CMD_MEM_STROBE_NEW_CMD))
1726 break;
1727
1728 if (time > 10) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00001729 DBG_PRINT(ERR_DBG, "%s: RTI init failed\n",
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001730 dev->name);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05001731 return -ENODEV;
raghavendra.koushik@neterion.comb6e3f982005-08-03 12:38:01 -07001732 }
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04001733 time++;
1734 msleep(50);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001735 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001736 }
1737
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001738 /*
1739 * Initializing proper values as Pause threshold into all
Linus Torvalds1da177e2005-04-16 15:20:36 -07001740 * the 8 Queues on Rx side.
1741 */
1742 writeq(0xffbbffbbffbbffbbULL, &bar0->mc_pause_thresh_q0q3);
1743 writeq(0xffbbffbbffbbffbbULL, &bar0->mc_pause_thresh_q4q7);
1744
1745 /* Disable RMAC PAD STRIPPING */
viro@ftp.linux.org.uk509a2672005-09-05 03:25:58 +01001746 add = &bar0->mac_cfg;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001747 val64 = readq(&bar0->mac_cfg);
1748 val64 &= ~(MAC_CFG_RMAC_STRIP_PAD);
1749 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1750 writel((u32) (val64), add);
1751 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1752 writel((u32) (val64 >> 32), (add + 4));
1753 val64 = readq(&bar0->mac_cfg);
1754
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05001755 /* Enable FCS stripping by adapter */
1756 add = &bar0->mac_cfg;
1757 val64 = readq(&bar0->mac_cfg);
1758 val64 |= MAC_CFG_RMAC_STRIP_FCS;
1759 if (nic->device_type == XFRAME_II_DEVICE)
1760 writeq(val64, &bar0->mac_cfg);
1761 else {
1762 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1763 writel((u32) (val64), add);
1764 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
1765 writel((u32) (val64 >> 32), (add + 4));
1766 }
1767
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001768 /*
1769 * Set the time value to be inserted in the pause frame
Linus Torvalds1da177e2005-04-16 15:20:36 -07001770 * generated by xena.
1771 */
1772 val64 = readq(&bar0->rmac_pause_cfg);
1773 val64 &= ~(RMAC_PAUSE_HG_PTIME(0xffff));
1774 val64 |= RMAC_PAUSE_HG_PTIME(nic->mac_control.rmac_pause_time);
1775 writeq(val64, &bar0->rmac_pause_cfg);
1776
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001777 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07001778 * Set the Threshold Limit for Generating the pause frame
1779 * If the amount of data in any Queue exceeds ratio of
1780 * (mac_control.mc_pause_threshold_q0q3 or q4q7)/256
1781 * pause frame is generated
1782 */
1783 val64 = 0;
1784 for (i = 0; i < 4; i++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00001785 val64 |= (((u64)0xFF00 |
1786 nic->mac_control.mc_pause_threshold_q0q3)
1787 << (i * 2 * 8));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001788 }
1789 writeq(val64, &bar0->mc_pause_thresh_q0q3);
1790
1791 val64 = 0;
1792 for (i = 0; i < 4; i++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00001793 val64 |= (((u64)0xFF00 |
1794 nic->mac_control.mc_pause_threshold_q4q7)
1795 << (i * 2 * 8));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001796 }
1797 writeq(val64, &bar0->mc_pause_thresh_q4q7);
1798
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001799 /*
1800 * TxDMA will stop Read request if the number of read split has
Linus Torvalds1da177e2005-04-16 15:20:36 -07001801 * exceeded the limit pointed by shared_splits
1802 */
1803 val64 = readq(&bar0->pic_control);
1804 val64 |= PIC_CNTL_SHARED_SPLITS(shared_splits);
1805 writeq(val64, &bar0->pic_control);
1806
Ananda Raju863c11a2006-04-21 19:03:13 -04001807 if (nic->config.bus_speed == 266) {
1808 writeq(TXREQTO_VAL(0x7f) | TXREQTO_EN, &bar0->txreqtimeout);
1809 writeq(0x0, &bar0->read_retry_delay);
1810 writeq(0x0, &bar0->write_retry_delay);
1811 }
1812
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001813 /*
1814 * Programming the Herc to split every write transaction
1815 * that does not start on an ADB to reduce disconnects.
1816 */
1817 if (nic->device_type == XFRAME_II_DEVICE) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05001818 val64 = FAULT_BEHAVIOUR | EXT_REQ_EN |
1819 MISC_LINK_STABILITY_PRD(3);
Ananda Raju863c11a2006-04-21 19:03:13 -04001820 writeq(val64, &bar0->misc_control);
1821 val64 = readq(&bar0->pic_control2);
Jiri Slabyb7b5a122007-10-18 23:40:29 -07001822 val64 &= ~(s2BIT(13)|s2BIT(14)|s2BIT(15));
Ananda Raju863c11a2006-04-21 19:03:13 -04001823 writeq(val64, &bar0->pic_control2);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07001824 }
Ananda Rajuc92ca042006-04-21 19:18:03 -04001825 if (strstr(nic->product_name, "CX4")) {
1826 val64 = TMAC_AVG_IPG(0x17);
1827 writeq(val64, &bar0->tmac_avg_ipg);
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07001828 }
1829
Linus Torvalds1da177e2005-04-16 15:20:36 -07001830 return SUCCESS;
1831}
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07001832#define LINK_UP_DOWN_INTERRUPT 1
1833#define MAC_RMAC_ERR_TIMER 2
1834
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05001835static int s2io_link_fault_indication(struct s2io_nic *nic)
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07001836{
1837 if (nic->device_type == XFRAME_II_DEVICE)
1838 return LINK_UP_DOWN_INTERRUPT;
1839 else
1840 return MAC_RMAC_ERR_TIMER;
1841}
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07001842
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001843/**
1844 * do_s2io_write_bits - update alarm bits in alarm register
1845 * @value: alarm bits
1846 * @flag: interrupt status
1847 * @addr: address value
1848 * Description: update alarm bits in alarm register
1849 * Return Value:
1850 * NONE.
1851 */
1852static void do_s2io_write_bits(u64 value, int flag, void __iomem *addr)
1853{
1854 u64 temp64;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001855
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001856 temp64 = readq(addr);
1857
Joe Perchesd44570e2009-08-24 17:29:44 +00001858 if (flag == ENABLE_INTRS)
1859 temp64 &= ~((u64)value);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001860 else
Joe Perchesd44570e2009-08-24 17:29:44 +00001861 temp64 |= ((u64)value);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001862 writeq(temp64, addr);
1863}
1864
Stephen Hemminger43b7c452007-10-05 12:39:21 -07001865static void en_dis_err_alarms(struct s2io_nic *nic, u16 mask, int flag)
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001866{
1867 struct XENA_dev_config __iomem *bar0 = nic->bar0;
1868 register u64 gen_int_mask = 0;
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04001869 u64 interruptible;
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001870
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04001871 writeq(DISABLE_ALL_INTRS, &bar0->general_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001872 if (mask & TX_DMA_INTR) {
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001873 gen_int_mask |= TXDMA_INT_M;
1874
1875 do_s2io_write_bits(TXDMA_TDA_INT | TXDMA_PFC_INT |
Joe Perchesd44570e2009-08-24 17:29:44 +00001876 TXDMA_PCC_INT | TXDMA_TTI_INT |
1877 TXDMA_LSO_INT | TXDMA_TPA_INT |
1878 TXDMA_SM_INT, flag, &bar0->txdma_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001879
1880 do_s2io_write_bits(PFC_ECC_DB_ERR | PFC_SM_ERR_ALARM |
Joe Perchesd44570e2009-08-24 17:29:44 +00001881 PFC_MISC_0_ERR | PFC_MISC_1_ERR |
1882 PFC_PCIX_ERR | PFC_ECC_SG_ERR, flag,
1883 &bar0->pfc_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001884
1885 do_s2io_write_bits(TDA_Fn_ECC_DB_ERR | TDA_SM0_ERR_ALARM |
Joe Perchesd44570e2009-08-24 17:29:44 +00001886 TDA_SM1_ERR_ALARM | TDA_Fn_ECC_SG_ERR |
1887 TDA_PCIX_ERR, flag, &bar0->tda_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001888
1889 do_s2io_write_bits(PCC_FB_ECC_DB_ERR | PCC_TXB_ECC_DB_ERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001890 PCC_SM_ERR_ALARM | PCC_WR_ERR_ALARM |
1891 PCC_N_SERR | PCC_6_COF_OV_ERR |
1892 PCC_7_COF_OV_ERR | PCC_6_LSO_OV_ERR |
1893 PCC_7_LSO_OV_ERR | PCC_FB_ECC_SG_ERR |
1894 PCC_TXB_ECC_SG_ERR,
1895 flag, &bar0->pcc_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001896
1897 do_s2io_write_bits(TTI_SM_ERR_ALARM | TTI_ECC_SG_ERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001898 TTI_ECC_DB_ERR, flag, &bar0->tti_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001899
1900 do_s2io_write_bits(LSO6_ABORT | LSO7_ABORT |
Joe Perchesd44570e2009-08-24 17:29:44 +00001901 LSO6_SM_ERR_ALARM | LSO7_SM_ERR_ALARM |
1902 LSO6_SEND_OFLOW | LSO7_SEND_OFLOW,
1903 flag, &bar0->lso_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001904
1905 do_s2io_write_bits(TPA_SM_ERR_ALARM | TPA_TX_FRM_DROP,
Joe Perchesd44570e2009-08-24 17:29:44 +00001906 flag, &bar0->tpa_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001907
1908 do_s2io_write_bits(SM_SM_ERR_ALARM, flag, &bar0->sm_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001909 }
1910
1911 if (mask & TX_MAC_INTR) {
1912 gen_int_mask |= TXMAC_INT_M;
1913 do_s2io_write_bits(MAC_INT_STATUS_TMAC_INT, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00001914 &bar0->mac_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001915 do_s2io_write_bits(TMAC_TX_BUF_OVRN | TMAC_TX_SM_ERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001916 TMAC_ECC_SG_ERR | TMAC_ECC_DB_ERR |
1917 TMAC_DESC_ECC_SG_ERR | TMAC_DESC_ECC_DB_ERR,
1918 flag, &bar0->mac_tmac_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001919 }
1920
1921 if (mask & TX_XGXS_INTR) {
1922 gen_int_mask |= TXXGXS_INT_M;
1923 do_s2io_write_bits(XGXS_INT_STATUS_TXGXS, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00001924 &bar0->xgxs_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001925 do_s2io_write_bits(TXGXS_ESTORE_UFLOW | TXGXS_TX_SM_ERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001926 TXGXS_ECC_SG_ERR | TXGXS_ECC_DB_ERR,
1927 flag, &bar0->xgxs_txgxs_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001928 }
1929
1930 if (mask & RX_DMA_INTR) {
1931 gen_int_mask |= RXDMA_INT_M;
1932 do_s2io_write_bits(RXDMA_INT_RC_INT_M | RXDMA_INT_RPA_INT_M |
Joe Perchesd44570e2009-08-24 17:29:44 +00001933 RXDMA_INT_RDA_INT_M | RXDMA_INT_RTI_INT_M,
1934 flag, &bar0->rxdma_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001935 do_s2io_write_bits(RC_PRCn_ECC_DB_ERR | RC_FTC_ECC_DB_ERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001936 RC_PRCn_SM_ERR_ALARM | RC_FTC_SM_ERR_ALARM |
1937 RC_PRCn_ECC_SG_ERR | RC_FTC_ECC_SG_ERR |
1938 RC_RDA_FAIL_WR_Rn, flag, &bar0->rc_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001939 do_s2io_write_bits(PRC_PCI_AB_RD_Rn | PRC_PCI_AB_WR_Rn |
Joe Perchesd44570e2009-08-24 17:29:44 +00001940 PRC_PCI_AB_F_WR_Rn | PRC_PCI_DP_RD_Rn |
1941 PRC_PCI_DP_WR_Rn | PRC_PCI_DP_F_WR_Rn, flag,
1942 &bar0->prc_pcix_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001943 do_s2io_write_bits(RPA_SM_ERR_ALARM | RPA_CREDIT_ERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001944 RPA_ECC_SG_ERR | RPA_ECC_DB_ERR, flag,
1945 &bar0->rpa_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001946 do_s2io_write_bits(RDA_RXDn_ECC_DB_ERR | RDA_FRM_ECC_DB_N_AERR |
Joe Perchesd44570e2009-08-24 17:29:44 +00001947 RDA_SM1_ERR_ALARM | RDA_SM0_ERR_ALARM |
1948 RDA_RXD_ECC_DB_SERR | RDA_RXDn_ECC_SG_ERR |
1949 RDA_FRM_ECC_SG_ERR |
1950 RDA_MISC_ERR|RDA_PCIX_ERR,
1951 flag, &bar0->rda_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001952 do_s2io_write_bits(RTI_SM_ERR_ALARM |
Joe Perchesd44570e2009-08-24 17:29:44 +00001953 RTI_ECC_SG_ERR | RTI_ECC_DB_ERR,
1954 flag, &bar0->rti_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001955 }
1956
1957 if (mask & RX_MAC_INTR) {
1958 gen_int_mask |= RXMAC_INT_M;
1959 do_s2io_write_bits(MAC_INT_STATUS_RMAC_INT, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00001960 &bar0->mac_int_mask);
1961 interruptible = (RMAC_RX_BUFF_OVRN | RMAC_RX_SM_ERR |
1962 RMAC_UNUSED_INT | RMAC_SINGLE_ECC_ERR |
1963 RMAC_DOUBLE_ECC_ERR);
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04001964 if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER)
1965 interruptible |= RMAC_LINK_STATE_CHANGE_INT;
1966 do_s2io_write_bits(interruptible,
Joe Perchesd44570e2009-08-24 17:29:44 +00001967 flag, &bar0->mac_rmac_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001968 }
1969
Joe Perchesd44570e2009-08-24 17:29:44 +00001970 if (mask & RX_XGXS_INTR) {
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001971 gen_int_mask |= RXXGXS_INT_M;
1972 do_s2io_write_bits(XGXS_INT_STATUS_RXGXS, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00001973 &bar0->xgxs_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001974 do_s2io_write_bits(RXGXS_ESTORE_OFLOW | RXGXS_RX_SM_ERR, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00001975 &bar0->xgxs_rxgxs_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001976 }
1977
1978 if (mask & MC_INTR) {
1979 gen_int_mask |= MC_INT_M;
Joe Perchesd44570e2009-08-24 17:29:44 +00001980 do_s2io_write_bits(MC_INT_MASK_MC_INT,
1981 flag, &bar0->mc_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001982 do_s2io_write_bits(MC_ERR_REG_SM_ERR | MC_ERR_REG_ECC_ALL_SNG |
Joe Perchesd44570e2009-08-24 17:29:44 +00001983 MC_ERR_REG_ECC_ALL_DBL | PLL_LOCK_N, flag,
1984 &bar0->mc_err_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04001985 }
1986 nic->general_int_mask = gen_int_mask;
1987
1988 /* Remove this line when alarm interrupts are enabled */
1989 nic->general_int_mask = 0;
1990}
Joe Perchesd44570e2009-08-24 17:29:44 +00001991
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001992/**
1993 * en_dis_able_nic_intrs - Enable or Disable the interrupts
Linus Torvalds1da177e2005-04-16 15:20:36 -07001994 * @nic: device private variable,
1995 * @mask: A mask indicating which Intr block must be modified and,
1996 * @flag: A flag indicating whether to enable or disable the Intrs.
1997 * Description: This function will either disable or enable the interrupts
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07001998 * depending on the flag argument. The mask argument can be used to
1999 * enable/disable any Intr block.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002000 * Return Value: NONE.
2001 */
2002
2003static void en_dis_able_nic_intrs(struct s2io_nic *nic, u16 mask, int flag)
2004{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002005 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002006 register u64 temp64 = 0, intr_mask = 0;
2007
2008 intr_mask = nic->general_int_mask;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002009
2010 /* Top level interrupt classification */
2011 /* PIC Interrupts */
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002012 if (mask & TX_PIC_INTR) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002013 /* Enable PIC Intrs in the general intr mask register */
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002014 intr_mask |= TXPIC_INT_M;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002015 if (flag == ENABLE_INTRS) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002016 /*
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07002017 * If Hercules adapter enable GPIO otherwise
Ananda Rajub41477f2006-07-24 19:52:49 -04002018 * disable all PCIX, Flash, MDIO, IIC and GPIO
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002019 * interrupts for now.
2020 * TODO
Linus Torvalds1da177e2005-04-16 15:20:36 -07002021 */
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07002022 if (s2io_link_fault_indication(nic) ==
Joe Perchesd44570e2009-08-24 17:29:44 +00002023 LINK_UP_DOWN_INTERRUPT) {
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002024 do_s2io_write_bits(PIC_INT_GPIO, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00002025 &bar0->pic_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002026 do_s2io_write_bits(GPIO_INT_MASK_LINK_UP, flag,
Joe Perchesd44570e2009-08-24 17:29:44 +00002027 &bar0->gpio_int_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002028 } else
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07002029 writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002030 } else if (flag == DISABLE_INTRS) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002031 /*
2032 * Disable PIC Intrs in the general
2033 * intr mask register
Linus Torvalds1da177e2005-04-16 15:20:36 -07002034 */
2035 writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002036 }
2037 }
2038
Linus Torvalds1da177e2005-04-16 15:20:36 -07002039 /* Tx traffic interrupts */
2040 if (mask & TX_TRAFFIC_INTR) {
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002041 intr_mask |= TXTRAFFIC_INT_M;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002042 if (flag == ENABLE_INTRS) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002043 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002044 * Enable all the Tx side interrupts
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002045 * writing 0 Enables all 64 TX interrupt levels
Linus Torvalds1da177e2005-04-16 15:20:36 -07002046 */
2047 writeq(0x0, &bar0->tx_traffic_mask);
2048 } else if (flag == DISABLE_INTRS) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002049 /*
2050 * Disable Tx Traffic Intrs in the general intr mask
Linus Torvalds1da177e2005-04-16 15:20:36 -07002051 * register.
2052 */
2053 writeq(DISABLE_ALL_INTRS, &bar0->tx_traffic_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002054 }
2055 }
2056
2057 /* Rx traffic interrupts */
2058 if (mask & RX_TRAFFIC_INTR) {
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002059 intr_mask |= RXTRAFFIC_INT_M;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002060 if (flag == ENABLE_INTRS) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002061 /* writing 0 Enables all 8 RX interrupt levels */
2062 writeq(0x0, &bar0->rx_traffic_mask);
2063 } else if (flag == DISABLE_INTRS) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002064 /*
2065 * Disable Rx Traffic Intrs in the general intr mask
Linus Torvalds1da177e2005-04-16 15:20:36 -07002066 * register.
2067 */
2068 writeq(DISABLE_ALL_INTRS, &bar0->rx_traffic_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002069 }
2070 }
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002071
2072 temp64 = readq(&bar0->general_int_mask);
2073 if (flag == ENABLE_INTRS)
Joe Perchesd44570e2009-08-24 17:29:44 +00002074 temp64 &= ~((u64)intr_mask);
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002075 else
2076 temp64 = DISABLE_ALL_INTRS;
2077 writeq(temp64, &bar0->general_int_mask);
2078
2079 nic->general_int_mask = readq(&bar0->general_int_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002080}
2081
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002082/**
2083 * verify_pcc_quiescent- Checks for PCC quiescent state
2084 * Return: 1 If PCC is quiescence
2085 * 0 If PCC is not quiescence
2086 */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002087static int verify_pcc_quiescent(struct s2io_nic *sp, int flag)
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002088{
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002089 int ret = 0, herc;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002090 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002091 u64 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04002092
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002093 herc = (sp->device_type == XFRAME_II_DEVICE);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002094
Tobias Klauserf957bcf2009-06-04 23:07:59 +00002095 if (flag == false) {
Auke Kok44c10132007-06-08 15:46:36 -07002096 if ((!herc && (sp->pdev->revision >= 4)) || herc) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002097 if (!(val64 & ADAPTER_STATUS_RMAC_PCC_IDLE))
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002098 ret = 1;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002099 } else {
2100 if (!(val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE))
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002101 ret = 1;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002102 }
2103 } else {
Auke Kok44c10132007-06-08 15:46:36 -07002104 if ((!herc && (sp->pdev->revision >= 4)) || herc) {
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002105 if (((val64 & ADAPTER_STATUS_RMAC_PCC_IDLE) ==
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002106 ADAPTER_STATUS_RMAC_PCC_IDLE))
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002107 ret = 1;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002108 } else {
2109 if (((val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE) ==
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002110 ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE))
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002111 ret = 1;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002112 }
2113 }
2114
2115 return ret;
2116}
2117/**
2118 * verify_xena_quiescence - Checks whether the H/W is ready
Linus Torvalds1da177e2005-04-16 15:20:36 -07002119 * Description: Returns whether the H/W is ready to go or not. Depending
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002120 * on whether adapter enable bit was written or not the comparison
Linus Torvalds1da177e2005-04-16 15:20:36 -07002121 * differs and the calling function passes the input argument flag to
2122 * indicate this.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002123 * Return: 1 If xena is quiescence
Linus Torvalds1da177e2005-04-16 15:20:36 -07002124 * 0 If Xena is not quiescence
2125 */
2126
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002127static int verify_xena_quiescence(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002128{
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002129 int mode;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002130 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002131 u64 val64 = readq(&bar0->adapter_status);
2132 mode = s2io_verify_pci_mode(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002133
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002134 if (!(val64 & ADAPTER_STATUS_TDMA_READY)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002135 DBG_PRINT(ERR_DBG, "TDMA is not ready!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002136 return 0;
2137 }
2138 if (!(val64 & ADAPTER_STATUS_RDMA_READY)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002139 DBG_PRINT(ERR_DBG, "RDMA is not ready!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002140 return 0;
2141 }
2142 if (!(val64 & ADAPTER_STATUS_PFC_READY)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002143 DBG_PRINT(ERR_DBG, "PFC is not ready!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002144 return 0;
2145 }
2146 if (!(val64 & ADAPTER_STATUS_TMAC_BUF_EMPTY)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002147 DBG_PRINT(ERR_DBG, "TMAC BUF is not empty!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002148 return 0;
2149 }
2150 if (!(val64 & ADAPTER_STATUS_PIC_QUIESCENT)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002151 DBG_PRINT(ERR_DBG, "PIC is not QUIESCENT!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002152 return 0;
2153 }
2154 if (!(val64 & ADAPTER_STATUS_MC_DRAM_READY)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002155 DBG_PRINT(ERR_DBG, "MC_DRAM is not ready!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002156 return 0;
2157 }
2158 if (!(val64 & ADAPTER_STATUS_MC_QUEUES_READY)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002159 DBG_PRINT(ERR_DBG, "MC_QUEUES is not ready!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002160 return 0;
2161 }
2162 if (!(val64 & ADAPTER_STATUS_M_PLL_LOCK)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002163 DBG_PRINT(ERR_DBG, "M_PLL is not locked!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002164 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002165 }
2166
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002167 /*
2168 * In PCI 33 mode, the P_PLL is not used, and therefore,
2169 * the the P_PLL_LOCK bit in the adapter_status register will
2170 * not be asserted.
2171 */
2172 if (!(val64 & ADAPTER_STATUS_P_PLL_LOCK) &&
Joe Perchesd44570e2009-08-24 17:29:44 +00002173 sp->device_type == XFRAME_II_DEVICE &&
2174 mode != PCI_MODE_PCI_33) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002175 DBG_PRINT(ERR_DBG, "P_PLL is not locked!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002176 return 0;
2177 }
2178 if (!((val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) ==
Joe Perchesd44570e2009-08-24 17:29:44 +00002179 ADAPTER_STATUS_RC_PRC_QUIESCENT)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002180 DBG_PRINT(ERR_DBG, "RC_PRC is not QUIESCENT!\n");
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002181 return 0;
2182 }
2183 return 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002184}
2185
2186/**
2187 * fix_mac_address - Fix for Mac addr problem on Alpha platforms
2188 * @sp: Pointer to device specifc structure
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002189 * Description :
Linus Torvalds1da177e2005-04-16 15:20:36 -07002190 * New procedure to clear mac address reading problems on Alpha platforms
2191 *
2192 */
2193
Joe Perchesd44570e2009-08-24 17:29:44 +00002194static void fix_mac_address(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002195{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002196 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002197 int i = 0;
2198
2199 while (fix_mac[i] != END_SIGN) {
2200 writeq(fix_mac[i++], &bar0->gpio_control);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002201 udelay(10);
David S. Millerd83d2822011-04-11 16:00:00 -07002202 (void) readq(&bar0->gpio_control);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002203 }
2204}
2205
2206/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002207 * start_nic - Turns the device on
Linus Torvalds1da177e2005-04-16 15:20:36 -07002208 * @nic : device private variable.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002209 * Description:
2210 * This function actually turns the device on. Before this function is
2211 * called,all Registers are configured from their reset states
2212 * and shared memory is allocated but the NIC is still quiescent. On
Linus Torvalds1da177e2005-04-16 15:20:36 -07002213 * calling this function, the device interrupts are cleared and the NIC is
2214 * literally switched on by writing into the adapter control register.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002215 * Return Value:
Linus Torvalds1da177e2005-04-16 15:20:36 -07002216 * SUCCESS on success and -1 on failure.
2217 */
2218
2219static int start_nic(struct s2io_nic *nic)
2220{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002221 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002222 struct net_device *dev = nic->dev;
2223 register u64 val64 = 0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002224 u16 subid, i;
Joe Perchesffb5df62009-08-24 17:29:47 +00002225 struct config_param *config = &nic->config;
2226 struct mac_info *mac_control = &nic->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002227
2228 /* PRC Initialization and configuration */
2229 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00002230 struct ring_info *ring = &mac_control->rings[i];
2231
Joe Perchesd44570e2009-08-24 17:29:44 +00002232 writeq((u64)ring->rx_blocks[0].block_dma_addr,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002233 &bar0->prc_rxd0_n[i]);
2234
2235 val64 = readq(&bar0->prc_ctrl_n[i]);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002236 if (nic->rxd_mode == RXD_MODE_1)
2237 val64 |= PRC_CTRL_RC_ENABLED;
2238 else
2239 val64 |= PRC_CTRL_RC_ENABLED | PRC_CTRL_RING_MODE_3;
Ananda Raju863c11a2006-04-21 19:03:13 -04002240 if (nic->device_type == XFRAME_II_DEVICE)
2241 val64 |= PRC_CTRL_GROUP_READS;
2242 val64 &= ~PRC_CTRL_RXD_BACKOFF_INTERVAL(0xFFFFFF);
2243 val64 |= PRC_CTRL_RXD_BACKOFF_INTERVAL(0x1000);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002244 writeq(val64, &bar0->prc_ctrl_n[i]);
2245 }
2246
Ananda Rajuda6971d2005-10-31 16:55:31 -05002247 if (nic->rxd_mode == RXD_MODE_3B) {
2248 /* Enabling 2 buffer mode by writing into Rx_pa_cfg reg. */
2249 val64 = readq(&bar0->rx_pa_cfg);
2250 val64 |= RX_PA_CFG_IGNORE_L2_ERR;
2251 writeq(val64, &bar0->rx_pa_cfg);
2252 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002253
Sivakumar Subramani926930b2007-02-24 01:59:39 -05002254 if (vlan_tag_strip == 0) {
2255 val64 = readq(&bar0->rx_pa_cfg);
2256 val64 &= ~RX_PA_CFG_STRIP_VLAN_TAG;
2257 writeq(val64, &bar0->rx_pa_cfg);
Breno Leitaocd0fce02008-09-04 17:52:54 -03002258 nic->vlan_strip_flag = 0;
Sivakumar Subramani926930b2007-02-24 01:59:39 -05002259 }
2260
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002261 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002262 * Enabling MC-RLDRAM. After enabling the device, we timeout
2263 * for around 100ms, which is approximately the time required
2264 * for the device to be ready for operation.
2265 */
2266 val64 = readq(&bar0->mc_rldram_mrs);
2267 val64 |= MC_RLDRAM_QUEUE_SIZE_ENABLE | MC_RLDRAM_MRS_ENABLE;
2268 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF);
2269 val64 = readq(&bar0->mc_rldram_mrs);
2270
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002271 msleep(100); /* Delay by around 100 ms. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002272
2273 /* Enabling ECC Protection. */
2274 val64 = readq(&bar0->adapter_control);
2275 val64 &= ~ADAPTER_ECC_EN;
2276 writeq(val64, &bar0->adapter_control);
2277
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002278 /*
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002279 * Verify if the device is ready to be enabled, if so enable
Linus Torvalds1da177e2005-04-16 15:20:36 -07002280 * it.
2281 */
2282 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05002283 if (!verify_xena_quiescence(nic)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002284 DBG_PRINT(ERR_DBG, "%s: device is not ready, "
2285 "Adapter status reads: 0x%llx\n",
2286 dev->name, (unsigned long long)val64);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002287 return FAILURE;
2288 }
2289
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002290 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002291 * With some switches, link might be already up at this point.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002292 * Because of this weird behavior, when we enable laser,
2293 * we may not get link. We need to handle this. We cannot
2294 * figure out which switch is misbehaving. So we are forced to
2295 * make a global change.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002296 */
2297
2298 /* Enabling Laser. */
2299 val64 = readq(&bar0->adapter_control);
2300 val64 |= ADAPTER_EOI_TX_ON;
2301 writeq(val64, &bar0->adapter_control);
2302
Ananda Rajuc92ca042006-04-21 19:18:03 -04002303 if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) {
2304 /*
Lucas De Marchi25985ed2011-03-30 22:57:33 -03002305 * Dont see link state interrupts initially on some switches,
Ananda Rajuc92ca042006-04-21 19:18:03 -04002306 * so directly scheduling the link state task here.
2307 */
2308 schedule_work(&nic->set_link_task);
2309 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002310 /* SXE-002: Initialize link and activity LED */
2311 subid = nic->pdev->subsystem_device;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07002312 if (((subid & 0xFF) >= 0x07) &&
2313 (nic->device_type == XFRAME_I_DEVICE)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002314 val64 = readq(&bar0->gpio_control);
2315 val64 |= 0x0000800000000000ULL;
2316 writeq(val64, &bar0->gpio_control);
2317 val64 = 0x0411040400000000ULL;
viro@ftp.linux.org.uk509a2672005-09-05 03:25:58 +01002318 writeq(val64, (void __iomem *)bar0 + 0x2700);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002319 }
2320
Linus Torvalds1da177e2005-04-16 15:20:36 -07002321 return SUCCESS;
2322}
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002323/**
2324 * s2io_txdl_getskb - Get the skb from txdl, unmap and return skb
2325 */
Joe Perchesd44570e2009-08-24 17:29:44 +00002326static struct sk_buff *s2io_txdl_getskb(struct fifo_info *fifo_data,
2327 struct TxD *txdlp, int get_off)
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002328{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002329 struct s2io_nic *nic = fifo_data->nic;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002330 struct sk_buff *skb;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002331 struct TxD *txds;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002332 u16 j, frg_cnt;
2333
2334 txds = txdlp;
Surjit Reang2fda0962008-01-24 02:08:59 -08002335 if (txds->Host_Control == (u64)(long)fifo_data->ufo_in_band_v) {
Joe Perchesd44570e2009-08-24 17:29:44 +00002336 pci_unmap_single(nic->pdev, (dma_addr_t)txds->Buffer_Pointer,
2337 sizeof(u64), PCI_DMA_TODEVICE);
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002338 txds++;
2339 }
2340
Joe Perchesd44570e2009-08-24 17:29:44 +00002341 skb = (struct sk_buff *)((unsigned long)txds->Host_Control);
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002342 if (!skb) {
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002343 memset(txdlp, 0, (sizeof(struct TxD) * fifo_data->max_txds));
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002344 return NULL;
2345 }
Joe Perchesd44570e2009-08-24 17:29:44 +00002346 pci_unmap_single(nic->pdev, (dma_addr_t)txds->Buffer_Pointer,
Eric Dumazete743d312010-04-14 15:59:40 -07002347 skb_headlen(skb), PCI_DMA_TODEVICE);
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002348 frg_cnt = skb_shinfo(skb)->nr_frags;
2349 if (frg_cnt) {
2350 txds++;
2351 for (j = 0; j < frg_cnt; j++, txds++) {
Eric Dumazet9e903e02011-10-18 21:00:24 +00002352 const skb_frag_t *frag = &skb_shinfo(skb)->frags[j];
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002353 if (!txds->Buffer_Pointer)
2354 break;
Joe Perchesd44570e2009-08-24 17:29:44 +00002355 pci_unmap_page(nic->pdev,
2356 (dma_addr_t)txds->Buffer_Pointer,
Eric Dumazet9e903e02011-10-18 21:00:24 +00002357 skb_frag_size(frag), PCI_DMA_TODEVICE);
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002358 }
2359 }
Joe Perchesd44570e2009-08-24 17:29:44 +00002360 memset(txdlp, 0, (sizeof(struct TxD) * fifo_data->max_txds));
2361 return skb;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002362}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002363
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002364/**
2365 * free_tx_buffers - Free all queued Tx buffers
Linus Torvalds1da177e2005-04-16 15:20:36 -07002366 * @nic : device private variable.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002367 * Description:
Linus Torvalds1da177e2005-04-16 15:20:36 -07002368 * Free all queued Tx buffers.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002369 * Return Value: void
Joe Perchesd44570e2009-08-24 17:29:44 +00002370 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002371
2372static void free_tx_buffers(struct s2io_nic *nic)
2373{
2374 struct net_device *dev = nic->dev;
2375 struct sk_buff *skb;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002376 struct TxD *txdp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002377 int i, j;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002378 int cnt = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00002379 struct config_param *config = &nic->config;
2380 struct mac_info *mac_control = &nic->mac_control;
2381 struct stat_block *stats = mac_control->stats_info;
2382 struct swStat *swstats = &stats->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002383
2384 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00002385 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
2386 struct fifo_info *fifo = &mac_control->fifos[i];
Surjit Reang2fda0962008-01-24 02:08:59 -08002387 unsigned long flags;
Joe Perches13d866a2009-08-24 17:29:41 +00002388
2389 spin_lock_irqsave(&fifo->tx_lock, flags);
2390 for (j = 0; j < tx_cfg->fifo_len; j++) {
Joe Perches43d620c2011-06-16 19:08:06 +00002391 txdp = fifo->list_info[j].list_virt_addr;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002392 skb = s2io_txdl_getskb(&mac_control->fifos[i], txdp, j);
2393 if (skb) {
Joe Perchesffb5df62009-08-24 17:29:47 +00002394 swstats->mem_freed += skb->truesize;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05002395 dev_kfree_skb(skb);
2396 cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002397 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002398 }
2399 DBG_PRINT(INTR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00002400 "%s: forcibly freeing %d skbs on FIFO%d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002401 dev->name, cnt, i);
Joe Perches13d866a2009-08-24 17:29:41 +00002402 fifo->tx_curr_get_info.offset = 0;
2403 fifo->tx_curr_put_info.offset = 0;
2404 spin_unlock_irqrestore(&fifo->tx_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002405 }
2406}
2407
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002408/**
2409 * stop_nic - To stop the nic
Linus Torvalds1da177e2005-04-16 15:20:36 -07002410 * @nic ; device private variable.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002411 * Description:
2412 * This function does exactly the opposite of what the start_nic()
Linus Torvalds1da177e2005-04-16 15:20:36 -07002413 * function does. This function is called to stop the device.
2414 * Return Value:
2415 * void.
2416 */
2417
2418static void stop_nic(struct s2io_nic *nic)
2419{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002420 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002421 register u64 val64 = 0;
Ananda Raju5d3213c2006-04-21 19:23:26 -04002422 u16 interruptible;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002423
2424 /* Disable all interrupts */
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002425 en_dis_err_alarms(nic, ENA_ALL_INTRS, DISABLE_INTRS);
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -07002426 interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR;
Sivakumar Subramani9caab452007-09-06 06:21:54 -04002427 interruptible |= TX_PIC_INTR;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002428 en_dis_able_nic_intrs(nic, interruptible, DISABLE_INTRS);
2429
Ananda Raju5d3213c2006-04-21 19:23:26 -04002430 /* Clearing Adapter_En bit of ADAPTER_CONTROL Register */
2431 val64 = readq(&bar0->adapter_control);
2432 val64 &= ~(ADAPTER_CNTL_EN);
2433 writeq(val64, &bar0->adapter_control);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002434}
2435
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002436/**
2437 * fill_rx_buffers - Allocates the Rx side skbs
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002438 * @ring_info: per ring structure
Sreenivasa Honnur3f78d882008-07-09 23:47:46 -04002439 * @from_card_up: If this is true, we will map the buffer to get
2440 * the dma address for buf0 and buf1 to give it to the card.
2441 * Else we will sync the already mapped buffer to give it to the card.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002442 * Description:
Linus Torvalds1da177e2005-04-16 15:20:36 -07002443 * The function allocates Rx side skbs and puts the physical
2444 * address of these buffers into the RxD buffer pointers, so that the NIC
2445 * can DMA the received frame into these locations.
2446 * The NIC supports 3 receive modes, viz
2447 * 1. single buffer,
2448 * 2. three buffer and
2449 * 3. Five buffer modes.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002450 * Each mode defines how many fragments the received frame will be split
2451 * up into by the NIC. The frame is split into L3 header, L4 Header,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002452 * L4 payload in three buffer mode and in 5 buffer mode, L4 payload itself
2453 * is split into 3 fragments. As of now only single buffer mode is
2454 * supported.
2455 * Return Value:
2456 * SUCCESS on success or an appropriate -ve value on failure.
2457 */
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002458static int fill_rx_buffers(struct s2io_nic *nic, struct ring_info *ring,
Joe Perchesd44570e2009-08-24 17:29:44 +00002459 int from_card_up)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002460{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002461 struct sk_buff *skb;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002462 struct RxD_t *rxdp;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002463 int off, size, block_no, block_no1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002464 u32 alloc_tab = 0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002465 u32 alloc_cnt;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002466 u64 tmp;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002467 struct buffAdd *ba;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002468 struct RxD_t *first_rxdp = NULL;
Ramkrishna Vepa363dc362007-03-06 17:01:00 -08002469 u64 Buffer0_ptr = 0, Buffer1_ptr = 0;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002470 int rxd_index = 0;
Veena Parat6d517a22007-07-23 02:20:51 -04002471 struct RxD1 *rxdp1;
2472 struct RxD3 *rxdp3;
Joe Perchesffb5df62009-08-24 17:29:47 +00002473 struct swStat *swstats = &ring->nic->mac_control.stats_info->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002474
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002475 alloc_cnt = ring->pkt_cnt - ring->rx_bufs_left;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002476
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002477 block_no1 = ring->rx_curr_get_info.block_index;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002478 while (alloc_tab < alloc_cnt) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002479 block_no = ring->rx_curr_put_info.block_index;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002480
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002481 off = ring->rx_curr_put_info.offset;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002482
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002483 rxdp = ring->rx_blocks[block_no].rxds[off].virt_addr;
2484
2485 rxd_index = off + 1;
2486 if (block_no)
2487 rxd_index += (block_no * ring->rxd_count);
2488
Jeff Garzik7d2e3cb2008-05-13 01:41:58 -04002489 if ((block_no == block_no1) &&
Joe Perchesd44570e2009-08-24 17:29:44 +00002490 (off == ring->rx_curr_get_info.offset) &&
2491 (rxdp->Host_Control)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002492 DBG_PRINT(INTR_DBG, "%s: Get and Put info equated\n",
2493 ring->dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002494 goto end;
2495 }
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002496 if (off && (off == ring->rxd_count)) {
2497 ring->rx_curr_put_info.block_index++;
2498 if (ring->rx_curr_put_info.block_index ==
Joe Perchesd44570e2009-08-24 17:29:44 +00002499 ring->block_count)
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002500 ring->rx_curr_put_info.block_index = 0;
2501 block_no = ring->rx_curr_put_info.block_index;
2502 off = 0;
2503 ring->rx_curr_put_info.offset = off;
2504 rxdp = ring->rx_blocks[block_no].block_virt_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002505 DBG_PRINT(INTR_DBG, "%s: Next block at: %p\n",
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002506 ring->dev->name, rxdp);
2507
Linus Torvalds1da177e2005-04-16 15:20:36 -07002508 }
Sreenivasa Honnurc9fcbf42008-04-23 13:31:33 -04002509
Ananda Rajuda6971d2005-10-31 16:55:31 -05002510 if ((rxdp->Control_1 & RXD_OWN_XENA) &&
Joe Perchesd44570e2009-08-24 17:29:44 +00002511 ((ring->rxd_mode == RXD_MODE_3B) &&
2512 (rxdp->Control_2 & s2BIT(0)))) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002513 ring->rx_curr_put_info.offset = off;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002514 goto end;
2515 }
Ananda Rajuda6971d2005-10-31 16:55:31 -05002516 /* calculate size of skb based on ring mode */
Joe Perchesd44570e2009-08-24 17:29:44 +00002517 size = ring->mtu +
2518 HEADER_ETHERNET_II_802_3_SIZE +
2519 HEADER_802_2_SIZE + HEADER_SNAP_SIZE;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002520 if (ring->rxd_mode == RXD_MODE_1)
Ananda Rajuda6971d2005-10-31 16:55:31 -05002521 size += NET_IP_ALIGN;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002522 else
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002523 size = ring->mtu + ALIGN_SIZE + BUF0_LEN + 4;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002524
Ananda Rajuda6971d2005-10-31 16:55:31 -05002525 /* allocate skb */
Pradeep A Dalvic056b732012-02-05 02:50:38 +00002526 skb = netdev_alloc_skb(nic->dev, size);
Joe Perchesd44570e2009-08-24 17:29:44 +00002527 if (!skb) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002528 DBG_PRINT(INFO_DBG, "%s: Could not allocate skb\n",
2529 ring->dev->name);
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07002530 if (first_rxdp) {
2531 wmb();
2532 first_rxdp->Control_1 |= RXD_OWN_XENA;
2533 }
Joe Perchesffb5df62009-08-24 17:29:47 +00002534 swstats->mem_alloc_fail_cnt++;
Jeff Garzik7d2e3cb2008-05-13 01:41:58 -04002535
Ananda Rajuda6971d2005-10-31 16:55:31 -05002536 return -ENOMEM ;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002537 }
Joe Perchesffb5df62009-08-24 17:29:47 +00002538 swstats->mem_allocated += skb->truesize;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002539
2540 if (ring->rxd_mode == RXD_MODE_1) {
Ananda Rajuda6971d2005-10-31 16:55:31 -05002541 /* 1 buffer mode - normal operation mode */
Joe Perchesd44570e2009-08-24 17:29:44 +00002542 rxdp1 = (struct RxD1 *)rxdp;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002543 memset(rxdp, 0, sizeof(struct RxD1));
Ananda Rajuda6971d2005-10-31 16:55:31 -05002544 skb_reserve(skb, NET_IP_ALIGN);
Joe Perchesd44570e2009-08-24 17:29:44 +00002545 rxdp1->Buffer0_ptr =
2546 pci_map_single(ring->pdev, skb->data,
2547 size - NET_IP_ALIGN,
2548 PCI_DMA_FROMDEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002549 if (pci_dma_mapping_error(nic->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00002550 rxdp1->Buffer0_ptr))
Veena Parat491abf22007-07-23 02:37:14 -04002551 goto pci_map_failed;
2552
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04002553 rxdp->Control_2 =
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04002554 SET_BUFFER0_SIZE_1(size - NET_IP_ALIGN);
Joe Perchesd44570e2009-08-24 17:29:44 +00002555 rxdp->Host_Control = (unsigned long)skb;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002556 } else if (ring->rxd_mode == RXD_MODE_3B) {
Ananda Rajuda6971d2005-10-31 16:55:31 -05002557 /*
Veena Parat6d517a22007-07-23 02:20:51 -04002558 * 2 buffer mode -
2559 * 2 buffer mode provides 128
Ananda Rajuda6971d2005-10-31 16:55:31 -05002560 * byte aligned receive buffers.
Ananda Rajuda6971d2005-10-31 16:55:31 -05002561 */
2562
Joe Perchesd44570e2009-08-24 17:29:44 +00002563 rxdp3 = (struct RxD3 *)rxdp;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04002564 /* save buffer pointers to avoid frequent dma mapping */
Veena Parat6d517a22007-07-23 02:20:51 -04002565 Buffer0_ptr = rxdp3->Buffer0_ptr;
2566 Buffer1_ptr = rxdp3->Buffer1_ptr;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002567 memset(rxdp, 0, sizeof(struct RxD3));
Ramkrishna Vepa363dc362007-03-06 17:01:00 -08002568 /* restore the buffer pointers for dma sync*/
Veena Parat6d517a22007-07-23 02:20:51 -04002569 rxdp3->Buffer0_ptr = Buffer0_ptr;
2570 rxdp3->Buffer1_ptr = Buffer1_ptr;
Ramkrishna Vepa363dc362007-03-06 17:01:00 -08002571
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002572 ba = &ring->ba[block_no][off];
Ananda Rajuda6971d2005-10-31 16:55:31 -05002573 skb_reserve(skb, BUF0_LEN);
Joe Perchesd44570e2009-08-24 17:29:44 +00002574 tmp = (u64)(unsigned long)skb->data;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002575 tmp += ALIGN_SIZE;
2576 tmp &= ~ALIGN_SIZE;
2577 skb->data = (void *) (unsigned long)tmp;
Arnaldo Carvalho de Melo27a884d2007-04-19 20:29:13 -07002578 skb_reset_tail_pointer(skb);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002579
Sreenivasa Honnur3f78d882008-07-09 23:47:46 -04002580 if (from_card_up) {
Veena Parat6d517a22007-07-23 02:20:51 -04002581 rxdp3->Buffer0_ptr =
Joe Perchesd44570e2009-08-24 17:29:44 +00002582 pci_map_single(ring->pdev, ba->ba_0,
2583 BUF0_LEN,
2584 PCI_DMA_FROMDEVICE);
2585 if (pci_dma_mapping_error(nic->pdev,
2586 rxdp3->Buffer0_ptr))
Sreenivasa Honnur3f78d882008-07-09 23:47:46 -04002587 goto pci_map_failed;
2588 } else
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002589 pci_dma_sync_single_for_device(ring->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00002590 (dma_addr_t)rxdp3->Buffer0_ptr,
2591 BUF0_LEN,
2592 PCI_DMA_FROMDEVICE);
Veena Parat491abf22007-07-23 02:37:14 -04002593
Ananda Rajuda6971d2005-10-31 16:55:31 -05002594 rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002595 if (ring->rxd_mode == RXD_MODE_3B) {
Ananda Rajuda6971d2005-10-31 16:55:31 -05002596 /* Two buffer mode */
2597
2598 /*
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002599 * Buffer2 will have L3/L4 header plus
Ananda Rajuda6971d2005-10-31 16:55:31 -05002600 * L4 payload
2601 */
Joe Perchesd44570e2009-08-24 17:29:44 +00002602 rxdp3->Buffer2_ptr = pci_map_single(ring->pdev,
2603 skb->data,
2604 ring->mtu + 4,
2605 PCI_DMA_FROMDEVICE);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002606
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002607 if (pci_dma_mapping_error(nic->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00002608 rxdp3->Buffer2_ptr))
Veena Parat491abf22007-07-23 02:37:14 -04002609 goto pci_map_failed;
2610
Sreenivasa Honnur3f78d882008-07-09 23:47:46 -04002611 if (from_card_up) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002612 rxdp3->Buffer1_ptr =
2613 pci_map_single(ring->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00002614 ba->ba_1,
2615 BUF1_LEN,
2616 PCI_DMA_FROMDEVICE);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002617
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002618 if (pci_dma_mapping_error(nic->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00002619 rxdp3->Buffer1_ptr)) {
2620 pci_unmap_single(ring->pdev,
2621 (dma_addr_t)(unsigned long)
2622 skb->data,
2623 ring->mtu + 4,
2624 PCI_DMA_FROMDEVICE);
Sreenivasa Honnur3f78d882008-07-09 23:47:46 -04002625 goto pci_map_failed;
2626 }
Ananda Raju75c30b12006-07-24 19:55:09 -04002627 }
Ananda Rajuda6971d2005-10-31 16:55:31 -05002628 rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1);
2629 rxdp->Control_2 |= SET_BUFFER2_SIZE_3
Joe Perchesd44570e2009-08-24 17:29:44 +00002630 (ring->mtu + 4);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002631 }
Jiri Slabyb7b5a122007-10-18 23:40:29 -07002632 rxdp->Control_2 |= s2BIT(0);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002633 rxdp->Host_Control = (unsigned long) (skb);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002634 }
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07002635 if (alloc_tab & ((1 << rxsync_frequency) - 1))
2636 rxdp->Control_1 |= RXD_OWN_XENA;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002637 off++;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002638 if (off == (ring->rxd_count + 1))
Ananda Rajuda6971d2005-10-31 16:55:31 -05002639 off = 0;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002640 ring->rx_curr_put_info.offset = off;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002641
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07002642 rxdp->Control_2 |= SET_RXD_MARKER;
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07002643 if (!(alloc_tab & ((1 << rxsync_frequency) - 1))) {
2644 if (first_rxdp) {
2645 wmb();
2646 first_rxdp->Control_1 |= RXD_OWN_XENA;
2647 }
2648 first_rxdp = rxdp;
2649 }
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002650 ring->rx_bufs_left += 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002651 alloc_tab++;
2652 }
2653
Joe Perchesd44570e2009-08-24 17:29:44 +00002654end:
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07002655 /* Transfer ownership of first descriptor to adapter just before
2656 * exiting. Before that, use memory barrier so that ownership
2657 * and other fields are seen by adapter correctly.
2658 */
2659 if (first_rxdp) {
2660 wmb();
2661 first_rxdp->Control_1 |= RXD_OWN_XENA;
2662 }
2663
Linus Torvalds1da177e2005-04-16 15:20:36 -07002664 return SUCCESS;
Joe Perchesd44570e2009-08-24 17:29:44 +00002665
Veena Parat491abf22007-07-23 02:37:14 -04002666pci_map_failed:
Joe Perchesffb5df62009-08-24 17:29:47 +00002667 swstats->pci_map_fail_cnt++;
2668 swstats->mem_freed += skb->truesize;
Veena Parat491abf22007-07-23 02:37:14 -04002669 dev_kfree_skb_irq(skb);
2670 return -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002671}
2672
Ananda Rajuda6971d2005-10-31 16:55:31 -05002673static void free_rxd_blk(struct s2io_nic *sp, int ring_no, int blk)
2674{
2675 struct net_device *dev = sp->dev;
2676 int j;
2677 struct sk_buff *skb;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002678 struct RxD_t *rxdp;
Veena Parat6d517a22007-07-23 02:20:51 -04002679 struct RxD1 *rxdp1;
2680 struct RxD3 *rxdp3;
Joe Perchesffb5df62009-08-24 17:29:47 +00002681 struct mac_info *mac_control = &sp->mac_control;
2682 struct stat_block *stats = mac_control->stats_info;
2683 struct swStat *swstats = &stats->sw_stat;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002684
Ananda Rajuda6971d2005-10-31 16:55:31 -05002685 for (j = 0 ; j < rxd_count[sp->rxd_mode]; j++) {
2686 rxdp = mac_control->rings[ring_no].
Joe Perchesd44570e2009-08-24 17:29:44 +00002687 rx_blocks[blk].rxds[j].virt_addr;
2688 skb = (struct sk_buff *)((unsigned long)rxdp->Host_Control);
2689 if (!skb)
Ananda Rajuda6971d2005-10-31 16:55:31 -05002690 continue;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002691 if (sp->rxd_mode == RXD_MODE_1) {
Joe Perchesd44570e2009-08-24 17:29:44 +00002692 rxdp1 = (struct RxD1 *)rxdp;
2693 pci_unmap_single(sp->pdev,
2694 (dma_addr_t)rxdp1->Buffer0_ptr,
2695 dev->mtu +
2696 HEADER_ETHERNET_II_802_3_SIZE +
2697 HEADER_802_2_SIZE + HEADER_SNAP_SIZE,
2698 PCI_DMA_FROMDEVICE);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002699 memset(rxdp, 0, sizeof(struct RxD1));
Joe Perchesd44570e2009-08-24 17:29:44 +00002700 } else if (sp->rxd_mode == RXD_MODE_3B) {
2701 rxdp3 = (struct RxD3 *)rxdp;
Joe Perchesd44570e2009-08-24 17:29:44 +00002702 pci_unmap_single(sp->pdev,
2703 (dma_addr_t)rxdp3->Buffer0_ptr,
2704 BUF0_LEN,
2705 PCI_DMA_FROMDEVICE);
2706 pci_unmap_single(sp->pdev,
2707 (dma_addr_t)rxdp3->Buffer1_ptr,
2708 BUF1_LEN,
2709 PCI_DMA_FROMDEVICE);
2710 pci_unmap_single(sp->pdev,
2711 (dma_addr_t)rxdp3->Buffer2_ptr,
2712 dev->mtu + 4,
2713 PCI_DMA_FROMDEVICE);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002714 memset(rxdp, 0, sizeof(struct RxD3));
Ananda Rajuda6971d2005-10-31 16:55:31 -05002715 }
Joe Perchesffb5df62009-08-24 17:29:47 +00002716 swstats->mem_freed += skb->truesize;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002717 dev_kfree_skb(skb);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002718 mac_control->rings[ring_no].rx_bufs_left -= 1;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002719 }
2720}
2721
Linus Torvalds1da177e2005-04-16 15:20:36 -07002722/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002723 * free_rx_buffers - Frees all Rx buffers
Linus Torvalds1da177e2005-04-16 15:20:36 -07002724 * @sp: device private variable.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002725 * Description:
Linus Torvalds1da177e2005-04-16 15:20:36 -07002726 * This function will free all Rx buffers allocated by host.
2727 * Return Value:
2728 * NONE.
2729 */
2730
2731static void free_rx_buffers(struct s2io_nic *sp)
2732{
2733 struct net_device *dev = sp->dev;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002734 int i, blk = 0, buf_cnt = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00002735 struct config_param *config = &sp->config;
2736 struct mac_info *mac_control = &sp->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002737
2738 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00002739 struct ring_info *ring = &mac_control->rings[i];
2740
Ananda Rajuda6971d2005-10-31 16:55:31 -05002741 for (blk = 0; blk < rx_ring_sz[i]; blk++)
Joe Perchesd44570e2009-08-24 17:29:44 +00002742 free_rxd_blk(sp, i, blk);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002743
Joe Perches13d866a2009-08-24 17:29:41 +00002744 ring->rx_curr_put_info.block_index = 0;
2745 ring->rx_curr_get_info.block_index = 0;
2746 ring->rx_curr_put_info.offset = 0;
2747 ring->rx_curr_get_info.offset = 0;
2748 ring->rx_bufs_left = 0;
Joe Perches9e39f7c2009-08-25 08:52:00 +00002749 DBG_PRINT(INIT_DBG, "%s: Freed 0x%x Rx Buffers on ring%d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002750 dev->name, buf_cnt, i);
2751 }
2752}
2753
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002754static int s2io_chk_rx_buffers(struct s2io_nic *nic, struct ring_info *ring)
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002755{
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002756 if (fill_rx_buffers(nic, ring, 0) == -ENOMEM) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002757 DBG_PRINT(INFO_DBG, "%s: Out of memory in Rx Intr!!\n",
2758 ring->dev->name);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002759 }
2760 return 0;
2761}
2762
Linus Torvalds1da177e2005-04-16 15:20:36 -07002763/**
2764 * s2io_poll - Rx interrupt handler for NAPI support
Stephen Hemmingerbea33482007-10-03 16:41:36 -07002765 * @napi : pointer to the napi structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002766 * @budget : The number of packets that were budgeted to be processed
Linus Torvalds1da177e2005-04-16 15:20:36 -07002767 * during one pass through the 'Poll" function.
2768 * Description:
2769 * Comes into picture only if NAPI support has been incorporated. It does
2770 * the same thing that rx_intr_handler does, but not in a interrupt context
2771 * also It will process only a given number of packets.
2772 * Return value:
2773 * 0 on success and 1 if there are No Rx packets to be processed.
2774 */
2775
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002776static int s2io_poll_msix(struct napi_struct *napi, int budget)
2777{
2778 struct ring_info *ring = container_of(napi, struct ring_info, napi);
2779 struct net_device *dev = ring->dev;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002780 int pkts_processed = 0;
Al Viro1a79d1c2008-06-02 10:59:02 +01002781 u8 __iomem *addr = NULL;
2782 u8 val8 = 0;
Wang Chen4cf16532008-11-12 23:38:14 -08002783 struct s2io_nic *nic = netdev_priv(dev);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002784 struct XENA_dev_config __iomem *bar0 = nic->bar0;
2785 int budget_org = budget;
2786
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002787 if (unlikely(!is_s2io_card_up(nic)))
2788 return 0;
2789
2790 pkts_processed = rx_intr_handler(ring, budget);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002791 s2io_chk_rx_buffers(nic, ring);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002792
2793 if (pkts_processed < budget_org) {
Ben Hutchings288379f2009-01-19 16:43:59 -08002794 napi_complete(napi);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002795 /*Re Enable MSI-Rx Vector*/
Al Viro1a79d1c2008-06-02 10:59:02 +01002796 addr = (u8 __iomem *)&bar0->xmsi_mask_reg;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002797 addr += 7 - ring->ring_no;
2798 val8 = (ring->ring_no == 0) ? 0x3f : 0xbf;
2799 writeb(val8, addr);
2800 val8 = readb(addr);
2801 }
2802 return pkts_processed;
2803}
Joe Perchesd44570e2009-08-24 17:29:44 +00002804
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002805static int s2io_poll_inta(struct napi_struct *napi, int budget)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002806{
Stephen Hemmingerbea33482007-10-03 16:41:36 -07002807 struct s2io_nic *nic = container_of(napi, struct s2io_nic, napi);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002808 int pkts_processed = 0;
2809 int ring_pkts_processed, i;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002810 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002811 int budget_org = budget;
Joe Perchesffb5df62009-08-24 17:29:47 +00002812 struct config_param *config = &nic->config;
2813 struct mac_info *mac_control = &nic->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002814
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002815 if (unlikely(!is_s2io_card_up(nic)))
2816 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002817
2818 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00002819 struct ring_info *ring = &mac_control->rings[i];
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002820 ring_pkts_processed = rx_intr_handler(ring, budget);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07002821 s2io_chk_rx_buffers(nic, ring);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002822 pkts_processed += ring_pkts_processed;
2823 budget -= ring_pkts_processed;
2824 if (budget <= 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002825 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002826 }
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002827 if (pkts_processed < budget_org) {
Ben Hutchings288379f2009-01-19 16:43:59 -08002828 napi_complete(napi);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002829 /* Re enable the Rx interrupts for the ring */
2830 writeq(0, &bar0->rx_traffic_mask);
2831 readl(&bar0->rx_traffic_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002832 }
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002833 return pkts_processed;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002834}
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002835
Ananda Rajub41477f2006-07-24 19:52:49 -04002836#ifdef CONFIG_NET_POLL_CONTROLLER
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002837/**
Ananda Rajub41477f2006-07-24 19:52:49 -04002838 * s2io_netpoll - netpoll event handler entry point
Brian Haley612eff02006-06-15 14:36:36 -04002839 * @dev : pointer to the device structure.
2840 * Description:
Ananda Rajub41477f2006-07-24 19:52:49 -04002841 * This function will be called by upper layer to check for events on the
2842 * interface in situations where interrupts are disabled. It is used for
2843 * specific in-kernel networking tasks, such as remote consoles and kernel
2844 * debugging over the network (example netdump in RedHat).
Brian Haley612eff02006-06-15 14:36:36 -04002845 */
Brian Haley612eff02006-06-15 14:36:36 -04002846static void s2io_netpoll(struct net_device *dev)
2847{
Wang Chen4cf16532008-11-12 23:38:14 -08002848 struct s2io_nic *nic = netdev_priv(dev);
Francois Romieu80777c52012-03-09 19:13:48 +01002849 const int irq = nic->pdev->irq;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002850 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Ananda Rajub41477f2006-07-24 19:52:49 -04002851 u64 val64 = 0xFFFFFFFFFFFFFFFFULL;
Brian Haley612eff02006-06-15 14:36:36 -04002852 int i;
Joe Perchesffb5df62009-08-24 17:29:47 +00002853 struct config_param *config = &nic->config;
2854 struct mac_info *mac_control = &nic->mac_control;
Brian Haley612eff02006-06-15 14:36:36 -04002855
Linas Vepstasd796fdb2007-05-14 18:37:30 -05002856 if (pci_channel_offline(nic->pdev))
2857 return;
2858
Francois Romieu80777c52012-03-09 19:13:48 +01002859 disable_irq(irq);
Brian Haley612eff02006-06-15 14:36:36 -04002860
Brian Haley612eff02006-06-15 14:36:36 -04002861 writeq(val64, &bar0->rx_traffic_int);
Ananda Rajub41477f2006-07-24 19:52:49 -04002862 writeq(val64, &bar0->tx_traffic_int);
Brian Haley612eff02006-06-15 14:36:36 -04002863
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002864 /* we need to free up the transmitted skbufs or else netpoll will
Ananda Rajub41477f2006-07-24 19:52:49 -04002865 * run out of skbs and will fail and eventually netpoll application such
2866 * as netdump will fail.
2867 */
2868 for (i = 0; i < config->tx_fifo_num; i++)
2869 tx_intr_handler(&mac_control->fifos[i]);
2870
2871 /* check for received packet and indicate up to network */
Joe Perches13d866a2009-08-24 17:29:41 +00002872 for (i = 0; i < config->rx_ring_num; i++) {
2873 struct ring_info *ring = &mac_control->rings[i];
2874
2875 rx_intr_handler(ring, 0);
2876 }
Brian Haley612eff02006-06-15 14:36:36 -04002877
2878 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00002879 struct ring_info *ring = &mac_control->rings[i];
2880
2881 if (fill_rx_buffers(nic, ring, 0) == -ENOMEM) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002882 DBG_PRINT(INFO_DBG,
2883 "%s: Out of memory in Rx Netpoll!!\n",
2884 dev->name);
Brian Haley612eff02006-06-15 14:36:36 -04002885 break;
2886 }
2887 }
Francois Romieu80777c52012-03-09 19:13:48 +01002888 enable_irq(irq);
Brian Haley612eff02006-06-15 14:36:36 -04002889}
2890#endif
2891
2892/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07002893 * rx_intr_handler - Rx interrupt handler
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002894 * @ring_info: per ring structure.
2895 * @budget: budget for napi processing.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002896 * Description:
2897 * If the interrupt is because of a received frame or if the
Linus Torvalds1da177e2005-04-16 15:20:36 -07002898 * receive ring contains fresh as yet un-processed frames,this function is
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002899 * called. It picks out the RxD at which place the last Rx processing had
2900 * stopped and sends the skb to the OSM's Rx handler and then increments
Linus Torvalds1da177e2005-04-16 15:20:36 -07002901 * the offset.
2902 * Return Value:
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002903 * No. of napi packets processed.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002904 */
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002905static int rx_intr_handler(struct ring_info *ring_data, int budget)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002906{
Sreenivasa Honnurc9fcbf42008-04-23 13:31:33 -04002907 int get_block, put_block;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002908 struct rx_curr_get_info get_info, put_info;
2909 struct RxD_t *rxdp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002910 struct sk_buff *skb;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002911 int pkt_cnt = 0, napi_pkts = 0;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05002912 int i;
Joe Perchesd44570e2009-08-24 17:29:44 +00002913 struct RxD1 *rxdp1;
2914 struct RxD3 *rxdp3;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05002915
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002916 get_info = ring_data->rx_curr_get_info;
2917 get_block = get_info.block_index;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05002918 memcpy(&put_info, &ring_data->rx_curr_put_info, sizeof(put_info));
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002919 put_block = put_info.block_index;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002920 rxdp = ring_data->rx_blocks[get_block].rxds[get_info.offset].virt_addr;
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05002921
Ananda Rajuda6971d2005-10-31 16:55:31 -05002922 while (RXD_IS_UP2DT(rxdp)) {
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05002923 /*
2924 * If your are next to put index then it's
2925 * FIFO full condition
2926 */
Ananda Rajuda6971d2005-10-31 16:55:31 -05002927 if ((get_block == put_block) &&
2928 (get_info.offset + 1) == put_info.offset) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002929 DBG_PRINT(INTR_DBG, "%s: Ring Full\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00002930 ring_data->dev->name);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002931 break;
2932 }
Joe Perchesd44570e2009-08-24 17:29:44 +00002933 skb = (struct sk_buff *)((unsigned long)rxdp->Host_Control);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002934 if (skb == NULL) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00002935 DBG_PRINT(ERR_DBG, "%s: NULL skb in Rx Intr\n",
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002936 ring_data->dev->name);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002937 return 0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002938 }
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002939 if (ring_data->rxd_mode == RXD_MODE_1) {
Joe Perchesd44570e2009-08-24 17:29:44 +00002940 rxdp1 = (struct RxD1 *)rxdp;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002941 pci_unmap_single(ring_data->pdev, (dma_addr_t)
Joe Perchesd44570e2009-08-24 17:29:44 +00002942 rxdp1->Buffer0_ptr,
2943 ring_data->mtu +
2944 HEADER_ETHERNET_II_802_3_SIZE +
2945 HEADER_802_2_SIZE +
2946 HEADER_SNAP_SIZE,
2947 PCI_DMA_FROMDEVICE);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002948 } else if (ring_data->rxd_mode == RXD_MODE_3B) {
Joe Perchesd44570e2009-08-24 17:29:44 +00002949 rxdp3 = (struct RxD3 *)rxdp;
2950 pci_dma_sync_single_for_cpu(ring_data->pdev,
2951 (dma_addr_t)rxdp3->Buffer0_ptr,
2952 BUF0_LEN,
2953 PCI_DMA_FROMDEVICE);
2954 pci_unmap_single(ring_data->pdev,
2955 (dma_addr_t)rxdp3->Buffer2_ptr,
2956 ring_data->mtu + 4,
2957 PCI_DMA_FROMDEVICE);
Ananda Rajuda6971d2005-10-31 16:55:31 -05002958 }
Ananda Raju863c11a2006-04-21 19:03:13 -04002959 prefetch(skb->data);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002960 rx_osm_handler(ring_data, rxdp);
2961 get_info.offset++;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002962 ring_data->rx_curr_get_info.offset = get_info.offset;
2963 rxdp = ring_data->rx_blocks[get_block].
Joe Perchesd44570e2009-08-24 17:29:44 +00002964 rxds[get_info.offset].virt_addr;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002965 if (get_info.offset == rxd_count[ring_data->rxd_mode]) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002966 get_info.offset = 0;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002967 ring_data->rx_curr_get_info.offset = get_info.offset;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002968 get_block++;
Ananda Rajuda6971d2005-10-31 16:55:31 -05002969 if (get_block == ring_data->block_count)
2970 get_block = 0;
2971 ring_data->rx_curr_get_info.block_index = get_block;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002972 rxdp = ring_data->rx_blocks[get_block].block_virt_addr;
2973 }
2974
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04002975 if (ring_data->nic->config.napi) {
2976 budget--;
2977 napi_pkts++;
2978 if (!budget)
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002979 break;
2980 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002981 pkt_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002982 if ((indicate_max_pkts) && (pkt_cnt > indicate_max_pkts))
2983 break;
2984 }
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002985 if (ring_data->lro) {
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05002986 /* Clear all LRO sessions before exiting */
Joe Perchesd44570e2009-08-24 17:29:44 +00002987 for (i = 0; i < MAX_LRO_SESSIONS; i++) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002988 struct lro *lro = &ring_data->lro0_n[i];
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05002989 if (lro->in_use) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04002990 update_L3L4_header(ring_data->nic, lro);
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05002991 queue_rx_frame(lro->parent, lro->vlan_tag);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05002992 clear_lro_session(lro);
2993 }
2994 }
2995 }
Joe Perchesd44570e2009-08-24 17:29:44 +00002996 return napi_pkts;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002997}
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07002998
2999/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07003000 * tx_intr_handler - Transmit interrupt handler
3001 * @nic : device private variable
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003002 * Description:
3003 * If an interrupt was raised to indicate DMA complete of the
3004 * Tx packet, this function is called. It identifies the last TxD
3005 * whose buffer was freed and frees all skbs whose data have already
Linus Torvalds1da177e2005-04-16 15:20:36 -07003006 * DMA'ed into the NICs internal memory.
3007 * Return Value:
3008 * NONE
3009 */
3010
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003011static void tx_intr_handler(struct fifo_info *fifo_data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003012{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003013 struct s2io_nic *nic = fifo_data->nic;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003014 struct tx_curr_get_info get_info, put_info;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05003015 struct sk_buff *skb = NULL;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003016 struct TxD *txdlp;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05003017 int pkt_cnt = 0;
Surjit Reang2fda0962008-01-24 02:08:59 -08003018 unsigned long flags = 0;
Olaf Heringf9046eb2007-06-19 22:41:10 +02003019 u8 err_mask;
Joe Perchesffb5df62009-08-24 17:29:47 +00003020 struct stat_block *stats = nic->mac_control.stats_info;
3021 struct swStat *swstats = &stats->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003022
Surjit Reang2fda0962008-01-24 02:08:59 -08003023 if (!spin_trylock_irqsave(&fifo_data->tx_lock, flags))
Joe Perchesd44570e2009-08-24 17:29:44 +00003024 return;
Surjit Reang2fda0962008-01-24 02:08:59 -08003025
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003026 get_info = fifo_data->tx_curr_get_info;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003027 memcpy(&put_info, &fifo_data->tx_curr_put_info, sizeof(put_info));
Joe Perches43d620c2011-06-16 19:08:06 +00003028 txdlp = fifo_data->list_info[get_info.offset].list_virt_addr;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003029 while ((!(txdlp->Control_1 & TXD_LIST_OWN_XENA)) &&
3030 (get_info.offset != put_info.offset) &&
3031 (txdlp->Host_Control)) {
3032 /* Check for TxD errors */
3033 if (txdlp->Control_1 & TXD_T_CODE) {
3034 unsigned long long err;
3035 err = txdlp->Control_1 & TXD_T_CODE;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003036 if (err & 0x1) {
Joe Perchesffb5df62009-08-24 17:29:47 +00003037 swstats->parity_err_cnt++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003038 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003039
3040 /* update t_code statistics */
Olaf Heringf9046eb2007-06-19 22:41:10 +02003041 err_mask = err >> 48;
Joe Perchesd44570e2009-08-24 17:29:44 +00003042 switch (err_mask) {
3043 case 2:
Joe Perchesffb5df62009-08-24 17:29:47 +00003044 swstats->tx_buf_abort_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003045 break;
3046
Joe Perchesd44570e2009-08-24 17:29:44 +00003047 case 3:
Joe Perchesffb5df62009-08-24 17:29:47 +00003048 swstats->tx_desc_abort_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003049 break;
3050
Joe Perchesd44570e2009-08-24 17:29:44 +00003051 case 7:
Joe Perchesffb5df62009-08-24 17:29:47 +00003052 swstats->tx_parity_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003053 break;
3054
Joe Perchesd44570e2009-08-24 17:29:44 +00003055 case 10:
Joe Perchesffb5df62009-08-24 17:29:47 +00003056 swstats->tx_link_loss_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003057 break;
3058
Joe Perchesd44570e2009-08-24 17:29:44 +00003059 case 15:
Joe Perchesffb5df62009-08-24 17:29:47 +00003060 swstats->tx_list_proc_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003061 break;
Joe Perchesd44570e2009-08-24 17:29:44 +00003062 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003063 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003064
Ananda Rajufed5ecc2005-11-14 15:25:08 -05003065 skb = s2io_txdl_getskb(fifo_data, txdlp, get_info.offset);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003066 if (skb == NULL) {
Surjit Reang2fda0962008-01-24 02:08:59 -08003067 spin_unlock_irqrestore(&fifo_data->tx_lock, flags);
Joe Perches9e39f7c2009-08-25 08:52:00 +00003068 DBG_PRINT(ERR_DBG, "%s: NULL skb in Tx Free Intr\n",
3069 __func__);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003070 return;
3071 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05003072 pkt_cnt++;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003073
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003074 /* Updating the statistics block */
Joe Perchesffb5df62009-08-24 17:29:47 +00003075 swstats->mem_freed += skb->truesize;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003076 dev_kfree_skb_irq(skb);
3077
3078 get_info.offset++;
Ananda Raju863c11a2006-04-21 19:03:13 -04003079 if (get_info.offset == get_info.fifo_len + 1)
3080 get_info.offset = 0;
Joe Perches43d620c2011-06-16 19:08:06 +00003081 txdlp = fifo_data->list_info[get_info.offset].list_virt_addr;
Joe Perchesd44570e2009-08-24 17:29:44 +00003082 fifo_data->tx_curr_get_info.offset = get_info.offset;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003083 }
3084
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05003085 s2io_wake_tx_queue(fifo_data, pkt_cnt, nic->config.multiq);
Surjit Reang2fda0962008-01-24 02:08:59 -08003086
3087 spin_unlock_irqrestore(&fifo_data->tx_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003088}
3089
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003090/**
Ananda Rajubd1034f2006-04-21 19:20:22 -04003091 * s2io_mdio_write - Function to write in to MDIO registers
3092 * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS)
3093 * @addr : address value
3094 * @value : data value
3095 * @dev : pointer to net_device structure
3096 * Description:
3097 * This function is used to write values to the MDIO registers
3098 * NONE
3099 */
Joe Perchesd44570e2009-08-24 17:29:44 +00003100static void s2io_mdio_write(u32 mmd_type, u64 addr, u16 value,
3101 struct net_device *dev)
Ananda Rajubd1034f2006-04-21 19:20:22 -04003102{
Joe Perchesd44570e2009-08-24 17:29:44 +00003103 u64 val64;
Wang Chen4cf16532008-11-12 23:38:14 -08003104 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003105 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003106
Joe Perchesd44570e2009-08-24 17:29:44 +00003107 /* address transaction */
3108 val64 = MDIO_MMD_INDX_ADDR(addr) |
3109 MDIO_MMD_DEV_ADDR(mmd_type) |
3110 MDIO_MMS_PRT_ADDR(0x0);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003111 writeq(val64, &bar0->mdio_control);
3112 val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
3113 writeq(val64, &bar0->mdio_control);
3114 udelay(100);
3115
Joe Perchesd44570e2009-08-24 17:29:44 +00003116 /* Data transaction */
3117 val64 = MDIO_MMD_INDX_ADDR(addr) |
3118 MDIO_MMD_DEV_ADDR(mmd_type) |
3119 MDIO_MMS_PRT_ADDR(0x0) |
3120 MDIO_MDIO_DATA(value) |
3121 MDIO_OP(MDIO_OP_WRITE_TRANS);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003122 writeq(val64, &bar0->mdio_control);
3123 val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
3124 writeq(val64, &bar0->mdio_control);
3125 udelay(100);
3126
Joe Perchesd44570e2009-08-24 17:29:44 +00003127 val64 = MDIO_MMD_INDX_ADDR(addr) |
3128 MDIO_MMD_DEV_ADDR(mmd_type) |
3129 MDIO_MMS_PRT_ADDR(0x0) |
3130 MDIO_OP(MDIO_OP_READ_TRANS);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003131 writeq(val64, &bar0->mdio_control);
3132 val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
3133 writeq(val64, &bar0->mdio_control);
3134 udelay(100);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003135}
3136
3137/**
3138 * s2io_mdio_read - Function to write in to MDIO registers
3139 * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS)
3140 * @addr : address value
3141 * @dev : pointer to net_device structure
3142 * Description:
3143 * This function is used to read values to the MDIO registers
3144 * NONE
3145 */
3146static u64 s2io_mdio_read(u32 mmd_type, u64 addr, struct net_device *dev)
3147{
3148 u64 val64 = 0x0;
3149 u64 rval64 = 0x0;
Wang Chen4cf16532008-11-12 23:38:14 -08003150 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003151 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003152
3153 /* address transaction */
Joe Perchesd44570e2009-08-24 17:29:44 +00003154 val64 = val64 | (MDIO_MMD_INDX_ADDR(addr)
3155 | MDIO_MMD_DEV_ADDR(mmd_type)
3156 | MDIO_MMS_PRT_ADDR(0x0));
Ananda Rajubd1034f2006-04-21 19:20:22 -04003157 writeq(val64, &bar0->mdio_control);
3158 val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
3159 writeq(val64, &bar0->mdio_control);
3160 udelay(100);
3161
3162 /* Data transaction */
Joe Perchesd44570e2009-08-24 17:29:44 +00003163 val64 = MDIO_MMD_INDX_ADDR(addr) |
3164 MDIO_MMD_DEV_ADDR(mmd_type) |
3165 MDIO_MMS_PRT_ADDR(0x0) |
3166 MDIO_OP(MDIO_OP_READ_TRANS);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003167 writeq(val64, &bar0->mdio_control);
3168 val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
3169 writeq(val64, &bar0->mdio_control);
3170 udelay(100);
3171
3172 /* Read the value from regs */
3173 rval64 = readq(&bar0->mdio_control);
3174 rval64 = rval64 & 0xFFFF0000;
3175 rval64 = rval64 >> 16;
3176 return rval64;
3177}
Joe Perchesd44570e2009-08-24 17:29:44 +00003178
Ananda Rajubd1034f2006-04-21 19:20:22 -04003179/**
3180 * s2io_chk_xpak_counter - Function to check the status of the xpak counters
Uwe Kleine-Königfbfecd32009-10-28 20:11:04 +01003181 * @counter : counter value to be updated
Ananda Rajubd1034f2006-04-21 19:20:22 -04003182 * @flag : flag to indicate the status
3183 * @type : counter type
3184 * Description:
3185 * This function is to check the status of the xpak counters value
3186 * NONE
3187 */
3188
Joe Perchesd44570e2009-08-24 17:29:44 +00003189static void s2io_chk_xpak_counter(u64 *counter, u64 * regs_stat, u32 index,
3190 u16 flag, u16 type)
Ananda Rajubd1034f2006-04-21 19:20:22 -04003191{
3192 u64 mask = 0x3;
3193 u64 val64;
3194 int i;
Joe Perchesd44570e2009-08-24 17:29:44 +00003195 for (i = 0; i < index; i++)
Ananda Rajubd1034f2006-04-21 19:20:22 -04003196 mask = mask << 0x2;
3197
Joe Perchesd44570e2009-08-24 17:29:44 +00003198 if (flag > 0) {
Ananda Rajubd1034f2006-04-21 19:20:22 -04003199 *counter = *counter + 1;
3200 val64 = *regs_stat & mask;
3201 val64 = val64 >> (index * 0x2);
3202 val64 = val64 + 1;
Joe Perchesd44570e2009-08-24 17:29:44 +00003203 if (val64 == 3) {
3204 switch (type) {
Ananda Rajubd1034f2006-04-21 19:20:22 -04003205 case 1:
Joe Perches9e39f7c2009-08-25 08:52:00 +00003206 DBG_PRINT(ERR_DBG,
3207 "Take Xframe NIC out of service.\n");
3208 DBG_PRINT(ERR_DBG,
3209"Excessive temperatures may result in premature transceiver failure.\n");
Joe Perchesd44570e2009-08-24 17:29:44 +00003210 break;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003211 case 2:
Joe Perches9e39f7c2009-08-25 08:52:00 +00003212 DBG_PRINT(ERR_DBG,
3213 "Take Xframe NIC out of service.\n");
3214 DBG_PRINT(ERR_DBG,
3215"Excessive bias currents may indicate imminent laser diode failure.\n");
Joe Perchesd44570e2009-08-24 17:29:44 +00003216 break;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003217 case 3:
Joe Perches9e39f7c2009-08-25 08:52:00 +00003218 DBG_PRINT(ERR_DBG,
3219 "Take Xframe NIC out of service.\n");
3220 DBG_PRINT(ERR_DBG,
3221"Excessive laser output power may saturate far-end receiver.\n");
Joe Perchesd44570e2009-08-24 17:29:44 +00003222 break;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003223 default:
Joe Perchesd44570e2009-08-24 17:29:44 +00003224 DBG_PRINT(ERR_DBG,
3225 "Incorrect XPAK Alarm type\n");
Ananda Rajubd1034f2006-04-21 19:20:22 -04003226 }
3227 val64 = 0x0;
3228 }
3229 val64 = val64 << (index * 0x2);
3230 *regs_stat = (*regs_stat & (~mask)) | (val64);
3231
3232 } else {
3233 *regs_stat = *regs_stat & (~mask);
3234 }
3235}
3236
3237/**
3238 * s2io_updt_xpak_counter - Function to update the xpak counters
3239 * @dev : pointer to net_device struct
3240 * Description:
3241 * This function is to upate the status of the xpak counters value
3242 * NONE
3243 */
3244static void s2io_updt_xpak_counter(struct net_device *dev)
3245{
3246 u16 flag = 0x0;
3247 u16 type = 0x0;
3248 u16 val16 = 0x0;
3249 u64 val64 = 0x0;
3250 u64 addr = 0x0;
3251
Wang Chen4cf16532008-11-12 23:38:14 -08003252 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00003253 struct stat_block *stats = sp->mac_control.stats_info;
3254 struct xpakStat *xstats = &stats->xpak_stat;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003255
3256 /* Check the communication with the MDIO slave */
Ben Hutchings40239392009-04-29 08:13:29 +00003257 addr = MDIO_CTRL1;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003258 val64 = 0x0;
Ben Hutchings40239392009-04-29 08:13:29 +00003259 val64 = s2io_mdio_read(MDIO_MMD_PMAPMD, addr, dev);
Joe Perchesd44570e2009-08-24 17:29:44 +00003260 if ((val64 == 0xFFFF) || (val64 == 0x0000)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003261 DBG_PRINT(ERR_DBG,
3262 "ERR: MDIO slave access failed - Returned %llx\n",
3263 (unsigned long long)val64);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003264 return;
3265 }
3266
Ben Hutchings40239392009-04-29 08:13:29 +00003267 /* Check for the expected value of control reg 1 */
Joe Perchesd44570e2009-08-24 17:29:44 +00003268 if (val64 != MDIO_CTRL1_SPEED10G) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003269 DBG_PRINT(ERR_DBG, "Incorrect value at PMA address 0x0000 - "
3270 "Returned: %llx- Expected: 0x%x\n",
Ben Hutchings40239392009-04-29 08:13:29 +00003271 (unsigned long long)val64, MDIO_CTRL1_SPEED10G);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003272 return;
3273 }
3274
3275 /* Loading the DOM register to MDIO register */
3276 addr = 0xA100;
Ben Hutchings40239392009-04-29 08:13:29 +00003277 s2io_mdio_write(MDIO_MMD_PMAPMD, addr, val16, dev);
3278 val64 = s2io_mdio_read(MDIO_MMD_PMAPMD, addr, dev);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003279
3280 /* Reading the Alarm flags */
3281 addr = 0xA070;
3282 val64 = 0x0;
Ben Hutchings40239392009-04-29 08:13:29 +00003283 val64 = s2io_mdio_read(MDIO_MMD_PMAPMD, addr, dev);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003284
3285 flag = CHECKBIT(val64, 0x7);
3286 type = 1;
Joe Perchesffb5df62009-08-24 17:29:47 +00003287 s2io_chk_xpak_counter(&xstats->alarm_transceiver_temp_high,
3288 &xstats->xpak_regs_stat,
Joe Perchesd44570e2009-08-24 17:29:44 +00003289 0x0, flag, type);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003290
Joe Perchesd44570e2009-08-24 17:29:44 +00003291 if (CHECKBIT(val64, 0x6))
Joe Perchesffb5df62009-08-24 17:29:47 +00003292 xstats->alarm_transceiver_temp_low++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003293
3294 flag = CHECKBIT(val64, 0x3);
3295 type = 2;
Joe Perchesffb5df62009-08-24 17:29:47 +00003296 s2io_chk_xpak_counter(&xstats->alarm_laser_bias_current_high,
3297 &xstats->xpak_regs_stat,
Joe Perchesd44570e2009-08-24 17:29:44 +00003298 0x2, flag, type);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003299
Joe Perchesd44570e2009-08-24 17:29:44 +00003300 if (CHECKBIT(val64, 0x2))
Joe Perchesffb5df62009-08-24 17:29:47 +00003301 xstats->alarm_laser_bias_current_low++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003302
3303 flag = CHECKBIT(val64, 0x1);
3304 type = 3;
Joe Perchesffb5df62009-08-24 17:29:47 +00003305 s2io_chk_xpak_counter(&xstats->alarm_laser_output_power_high,
3306 &xstats->xpak_regs_stat,
Joe Perchesd44570e2009-08-24 17:29:44 +00003307 0x4, flag, type);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003308
Joe Perchesd44570e2009-08-24 17:29:44 +00003309 if (CHECKBIT(val64, 0x0))
Joe Perchesffb5df62009-08-24 17:29:47 +00003310 xstats->alarm_laser_output_power_low++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003311
3312 /* Reading the Warning flags */
3313 addr = 0xA074;
3314 val64 = 0x0;
Ben Hutchings40239392009-04-29 08:13:29 +00003315 val64 = s2io_mdio_read(MDIO_MMD_PMAPMD, addr, dev);
Ananda Rajubd1034f2006-04-21 19:20:22 -04003316
Joe Perchesd44570e2009-08-24 17:29:44 +00003317 if (CHECKBIT(val64, 0x7))
Joe Perchesffb5df62009-08-24 17:29:47 +00003318 xstats->warn_transceiver_temp_high++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003319
Joe Perchesd44570e2009-08-24 17:29:44 +00003320 if (CHECKBIT(val64, 0x6))
Joe Perchesffb5df62009-08-24 17:29:47 +00003321 xstats->warn_transceiver_temp_low++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003322
Joe Perchesd44570e2009-08-24 17:29:44 +00003323 if (CHECKBIT(val64, 0x3))
Joe Perchesffb5df62009-08-24 17:29:47 +00003324 xstats->warn_laser_bias_current_high++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003325
Joe Perchesd44570e2009-08-24 17:29:44 +00003326 if (CHECKBIT(val64, 0x2))
Joe Perchesffb5df62009-08-24 17:29:47 +00003327 xstats->warn_laser_bias_current_low++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003328
Joe Perchesd44570e2009-08-24 17:29:44 +00003329 if (CHECKBIT(val64, 0x1))
Joe Perchesffb5df62009-08-24 17:29:47 +00003330 xstats->warn_laser_output_power_high++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003331
Joe Perchesd44570e2009-08-24 17:29:44 +00003332 if (CHECKBIT(val64, 0x0))
Joe Perchesffb5df62009-08-24 17:29:47 +00003333 xstats->warn_laser_output_power_low++;
Ananda Rajubd1034f2006-04-21 19:20:22 -04003334}
3335
3336/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07003337 * wait_for_cmd_complete - waits for a command to complete.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003338 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07003339 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003340 * Description: Function that waits for a command to Write into RMAC
3341 * ADDR DATA registers to be completed and returns either success or
3342 * error depending on whether the command was complete or not.
Linus Torvalds1da177e2005-04-16 15:20:36 -07003343 * Return value:
3344 * SUCCESS on success and FAILURE on failure.
3345 */
3346
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003347static int wait_for_cmd_complete(void __iomem *addr, u64 busy_bit,
Joe Perchesd44570e2009-08-24 17:29:44 +00003348 int bit_state)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003349{
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003350 int ret = FAILURE, cnt = 0, delay = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003351 u64 val64;
3352
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003353 if ((bit_state != S2IO_BIT_RESET) && (bit_state != S2IO_BIT_SET))
3354 return FAILURE;
3355
3356 do {
Ananda Rajuc92ca042006-04-21 19:18:03 -04003357 val64 = readq(addr);
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003358 if (bit_state == S2IO_BIT_RESET) {
3359 if (!(val64 & busy_bit)) {
3360 ret = SUCCESS;
3361 break;
3362 }
3363 } else {
Ram Vepa2d146eb2010-01-19 12:36:20 -08003364 if (val64 & busy_bit) {
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003365 ret = SUCCESS;
3366 break;
3367 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003368 }
Ananda Rajuc92ca042006-04-21 19:18:03 -04003369
Joe Perchesd44570e2009-08-24 17:29:44 +00003370 if (in_interrupt())
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003371 mdelay(delay);
Ananda Rajuc92ca042006-04-21 19:18:03 -04003372 else
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003373 msleep(delay);
Ananda Rajuc92ca042006-04-21 19:18:03 -04003374
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05003375 if (++cnt >= 10)
3376 delay = 50;
3377 } while (cnt < 20);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003378 return ret;
3379}
Sivakumar Subramani19a60522007-01-31 13:30:49 -05003380/*
3381 * check_pci_device_id - Checks if the device id is supported
3382 * @id : device id
3383 * Description: Function to check if the pci device id is supported by driver.
3384 * Return value: Actual device id if supported else PCI_ANY_ID
3385 */
3386static u16 check_pci_device_id(u16 id)
3387{
3388 switch (id) {
3389 case PCI_DEVICE_ID_HERC_WIN:
3390 case PCI_DEVICE_ID_HERC_UNI:
3391 return XFRAME_II_DEVICE;
3392 case PCI_DEVICE_ID_S2IO_UNI:
3393 case PCI_DEVICE_ID_S2IO_WIN:
3394 return XFRAME_I_DEVICE;
3395 default:
3396 return PCI_ANY_ID;
3397 }
3398}
Linus Torvalds1da177e2005-04-16 15:20:36 -07003399
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003400/**
3401 * s2io_reset - Resets the card.
Linus Torvalds1da177e2005-04-16 15:20:36 -07003402 * @sp : private member of the device structure.
3403 * Description: Function to Reset the card. This function then also
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003404 * restores the previously saved PCI configuration space registers as
Linus Torvalds1da177e2005-04-16 15:20:36 -07003405 * the card reset also resets the configuration space.
3406 * Return value:
3407 * void.
3408 */
3409
Joe Perchesd44570e2009-08-24 17:29:44 +00003410static void s2io_reset(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003411{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003412 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003413 u64 val64;
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07003414 u16 subid, pci_cmd;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05003415 int i;
3416 u16 val16;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003417 unsigned long long up_cnt, down_cnt, up_time, down_time, reset_cnt;
3418 unsigned long long mem_alloc_cnt, mem_free_cnt, watchdog_cnt;
Joe Perchesffb5df62009-08-24 17:29:47 +00003419 struct stat_block *stats;
3420 struct swStat *swstats;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003421
Joe Perches9e39f7c2009-08-25 08:52:00 +00003422 DBG_PRINT(INIT_DBG, "%s: Resetting XFrame card %s\n",
Breno Leitao3a228132010-03-04 10:40:44 +00003423 __func__, pci_name(sp->pdev));
Linus Torvalds1da177e2005-04-16 15:20:36 -07003424
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07003425 /* Back up the PCI-X CMD reg, dont want to lose MMRBC, OST settings */
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -07003426 pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, &(pci_cmd));
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07003427
Linus Torvalds1da177e2005-04-16 15:20:36 -07003428 val64 = SW_RESET_ALL;
3429 writeq(val64, &bar0->sw_reset);
Joe Perchesd44570e2009-08-24 17:29:44 +00003430 if (strstr(sp->product_name, "CX4"))
Ananda Rajuc92ca042006-04-21 19:18:03 -04003431 msleep(750);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003432 msleep(250);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05003433 for (i = 0; i < S2IO_MAX_PCI_CONFIG_SPACE_REINIT; i++) {
3434
3435 /* Restore the PCI state saved during initialization. */
3436 pci_restore_state(sp->pdev);
Breno Leitaob8a623b2009-11-10 09:44:23 +00003437 pci_save_state(sp->pdev);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05003438 pci_read_config_word(sp->pdev, 0x2, &val16);
3439 if (check_pci_device_id(val16) != (u16)PCI_ANY_ID)
3440 break;
3441 msleep(200);
3442 }
3443
Joe Perchesd44570e2009-08-24 17:29:44 +00003444 if (check_pci_device_id(val16) == (u16)PCI_ANY_ID)
3445 DBG_PRINT(ERR_DBG, "%s SW_Reset failed!\n", __func__);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05003446
3447 pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER, pci_cmd);
3448
3449 s2io_init_pci(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003450
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003451 /* Set swapper to enable I/O register access */
3452 s2io_set_swapper(sp);
3453
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08003454 /* restore mac_addr entries */
3455 do_s2io_restore_unicast_mc(sp);
3456
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003457 /* Restore the MSIX table entries from local variables */
3458 restore_xmsi_data(sp);
3459
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07003460 /* Clear certain PCI/PCI-X fields after reset */
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07003461 if (sp->device_type == XFRAME_II_DEVICE) {
Ananda Rajub41477f2006-07-24 19:52:49 -04003462 /* Clear "detected parity error" bit */
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07003463 pci_write_config_word(sp->pdev, PCI_STATUS, 0x8000);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07003464
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07003465 /* Clearing PCIX Ecc status register */
3466 pci_write_config_dword(sp->pdev, 0x68, 0x7C);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07003467
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07003468 /* Clearing PCI_STATUS error reflected here */
Jiri Slabyb7b5a122007-10-18 23:40:29 -07003469 writeq(s2BIT(62), &bar0->txpic_int_reg);
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07003470 }
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07003471
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003472 /* Reset device statistics maintained by OS */
Joe Perchesd44570e2009-08-24 17:29:44 +00003473 memset(&sp->stats, 0, sizeof(struct net_device_stats));
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003474
Joe Perchesffb5df62009-08-24 17:29:47 +00003475 stats = sp->mac_control.stats_info;
3476 swstats = &stats->sw_stat;
3477
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003478 /* save link up/down time/cnt, reset/memory/watchdog cnt */
Joe Perchesffb5df62009-08-24 17:29:47 +00003479 up_cnt = swstats->link_up_cnt;
3480 down_cnt = swstats->link_down_cnt;
3481 up_time = swstats->link_up_time;
3482 down_time = swstats->link_down_time;
3483 reset_cnt = swstats->soft_reset_cnt;
3484 mem_alloc_cnt = swstats->mem_allocated;
3485 mem_free_cnt = swstats->mem_freed;
3486 watchdog_cnt = swstats->watchdog_timer_cnt;
3487
3488 memset(stats, 0, sizeof(struct stat_block));
3489
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003490 /* restore link up/down time/cnt, reset/memory/watchdog cnt */
Joe Perchesffb5df62009-08-24 17:29:47 +00003491 swstats->link_up_cnt = up_cnt;
3492 swstats->link_down_cnt = down_cnt;
3493 swstats->link_up_time = up_time;
3494 swstats->link_down_time = down_time;
3495 swstats->soft_reset_cnt = reset_cnt;
3496 swstats->mem_allocated = mem_alloc_cnt;
3497 swstats->mem_freed = mem_free_cnt;
3498 swstats->watchdog_timer_cnt = watchdog_cnt;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003499
Linus Torvalds1da177e2005-04-16 15:20:36 -07003500 /* SXE-002: Configure link and activity LED to turn it off */
3501 subid = sp->pdev->subsystem_device;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07003502 if (((subid & 0xFF) >= 0x07) &&
3503 (sp->device_type == XFRAME_I_DEVICE)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003504 val64 = readq(&bar0->gpio_control);
3505 val64 |= 0x0000800000000000ULL;
3506 writeq(val64, &bar0->gpio_control);
3507 val64 = 0x0411040400000000ULL;
viro@ftp.linux.org.uk509a2672005-09-05 03:25:58 +01003508 writeq(val64, (void __iomem *)bar0 + 0x2700);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003509 }
3510
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07003511 /*
Lucas De Marchi25985ed2011-03-30 22:57:33 -03003512 * Clear spurious ECC interrupts that would have occurred on
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07003513 * XFRAME II cards after reset.
3514 */
3515 if (sp->device_type == XFRAME_II_DEVICE) {
3516 val64 = readq(&bar0->pcc_err_reg);
3517 writeq(val64, &bar0->pcc_err_reg);
3518 }
3519
Tobias Klauserf957bcf2009-06-04 23:07:59 +00003520 sp->device_enabled_once = false;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003521}
3522
3523/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003524 * s2io_set_swapper - to set the swapper controle on the card
3525 * @sp : private member of the device structure,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003526 * pointer to the s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003527 * Description: Function to set the swapper control on the card
Linus Torvalds1da177e2005-04-16 15:20:36 -07003528 * correctly depending on the 'endianness' of the system.
3529 * Return value:
3530 * SUCCESS on success and FAILURE on failure.
3531 */
3532
Joe Perchesd44570e2009-08-24 17:29:44 +00003533static int s2io_set_swapper(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003534{
3535 struct net_device *dev = sp->dev;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003536 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003537 u64 val64, valt, valr;
3538
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003539 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07003540 * Set proper endian settings and verify the same by reading
3541 * the PIF Feed-back register.
3542 */
3543
3544 val64 = readq(&bar0->pif_rd_swapper_fb);
3545 if (val64 != 0x0123456789ABCDEFULL) {
3546 int i = 0;
Jon Mason85a56492010-12-10 15:40:04 +00003547 static const u64 value[] = {
3548 0xC30000C3C30000C3ULL, /* FE=1, SE=1 */
3549 0x8100008181000081ULL, /* FE=1, SE=0 */
3550 0x4200004242000042ULL, /* FE=0, SE=1 */
3551 0 /* FE=0, SE=0 */
3552 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07003553
Joe Perchesd44570e2009-08-24 17:29:44 +00003554 while (i < 4) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003555 writeq(value[i], &bar0->swapper_ctrl);
3556 val64 = readq(&bar0->pif_rd_swapper_fb);
3557 if (val64 == 0x0123456789ABCDEFULL)
3558 break;
3559 i++;
3560 }
3561 if (i == 4) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003562 DBG_PRINT(ERR_DBG, "%s: Endian settings are wrong, "
3563 "feedback read %llx\n",
3564 dev->name, (unsigned long long)val64);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003565 return FAILURE;
3566 }
3567 valr = value[i];
3568 } else {
3569 valr = readq(&bar0->swapper_ctrl);
3570 }
3571
3572 valt = 0x0123456789ABCDEFULL;
3573 writeq(valt, &bar0->xmsi_address);
3574 val64 = readq(&bar0->xmsi_address);
3575
Joe Perchesd44570e2009-08-24 17:29:44 +00003576 if (val64 != valt) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003577 int i = 0;
Jon Mason85a56492010-12-10 15:40:04 +00003578 static const u64 value[] = {
3579 0x00C3C30000C3C300ULL, /* FE=1, SE=1 */
3580 0x0081810000818100ULL, /* FE=1, SE=0 */
3581 0x0042420000424200ULL, /* FE=0, SE=1 */
3582 0 /* FE=0, SE=0 */
3583 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07003584
Joe Perchesd44570e2009-08-24 17:29:44 +00003585 while (i < 4) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003586 writeq((value[i] | valr), &bar0->swapper_ctrl);
3587 writeq(valt, &bar0->xmsi_address);
3588 val64 = readq(&bar0->xmsi_address);
Joe Perchesd44570e2009-08-24 17:29:44 +00003589 if (val64 == valt)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003590 break;
3591 i++;
3592 }
Joe Perchesd44570e2009-08-24 17:29:44 +00003593 if (i == 4) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003594 unsigned long long x = val64;
Joe Perches9e39f7c2009-08-25 08:52:00 +00003595 DBG_PRINT(ERR_DBG,
3596 "Write failed, Xmsi_addr reads:0x%llx\n", x);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003597 return FAILURE;
3598 }
3599 }
3600 val64 = readq(&bar0->swapper_ctrl);
3601 val64 &= 0xFFFF000000000000ULL;
3602
Joe Perchesd44570e2009-08-24 17:29:44 +00003603#ifdef __BIG_ENDIAN
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003604 /*
3605 * The device by default set to a big endian format, so a
Linus Torvalds1da177e2005-04-16 15:20:36 -07003606 * big endian driver need not set anything.
3607 */
3608 val64 |= (SWAPPER_CTRL_TXP_FE |
Joe Perchesd44570e2009-08-24 17:29:44 +00003609 SWAPPER_CTRL_TXP_SE |
3610 SWAPPER_CTRL_TXD_R_FE |
3611 SWAPPER_CTRL_TXD_W_FE |
3612 SWAPPER_CTRL_TXF_R_FE |
3613 SWAPPER_CTRL_RXD_R_FE |
3614 SWAPPER_CTRL_RXD_W_FE |
3615 SWAPPER_CTRL_RXF_W_FE |
3616 SWAPPER_CTRL_XMSI_FE |
3617 SWAPPER_CTRL_STATS_FE |
3618 SWAPPER_CTRL_STATS_SE);
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07003619 if (sp->config.intr_type == INTA)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003620 val64 |= SWAPPER_CTRL_XMSI_SE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003621 writeq(val64, &bar0->swapper_ctrl);
3622#else
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003623 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07003624 * Initially we enable all bits to make it accessible by the
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003625 * driver, then we selectively enable only those bits that
Linus Torvalds1da177e2005-04-16 15:20:36 -07003626 * we want to set.
3627 */
3628 val64 |= (SWAPPER_CTRL_TXP_FE |
Joe Perchesd44570e2009-08-24 17:29:44 +00003629 SWAPPER_CTRL_TXP_SE |
3630 SWAPPER_CTRL_TXD_R_FE |
3631 SWAPPER_CTRL_TXD_R_SE |
3632 SWAPPER_CTRL_TXD_W_FE |
3633 SWAPPER_CTRL_TXD_W_SE |
3634 SWAPPER_CTRL_TXF_R_FE |
3635 SWAPPER_CTRL_RXD_R_FE |
3636 SWAPPER_CTRL_RXD_R_SE |
3637 SWAPPER_CTRL_RXD_W_FE |
3638 SWAPPER_CTRL_RXD_W_SE |
3639 SWAPPER_CTRL_RXF_W_FE |
3640 SWAPPER_CTRL_XMSI_FE |
3641 SWAPPER_CTRL_STATS_FE |
3642 SWAPPER_CTRL_STATS_SE);
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07003643 if (sp->config.intr_type == INTA)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003644 val64 |= SWAPPER_CTRL_XMSI_SE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003645 writeq(val64, &bar0->swapper_ctrl);
3646#endif
3647 val64 = readq(&bar0->swapper_ctrl);
3648
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003649 /*
3650 * Verifying if endian settings are accurate by reading a
Linus Torvalds1da177e2005-04-16 15:20:36 -07003651 * feedback register.
3652 */
3653 val64 = readq(&bar0->pif_rd_swapper_fb);
3654 if (val64 != 0x0123456789ABCDEFULL) {
3655 /* Endian settings are incorrect, calls for another dekko. */
Joe Perches9e39f7c2009-08-25 08:52:00 +00003656 DBG_PRINT(ERR_DBG,
3657 "%s: Endian settings are wrong, feedback read %llx\n",
3658 dev->name, (unsigned long long)val64);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003659 return FAILURE;
3660 }
3661
3662 return SUCCESS;
3663}
3664
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003665static int wait_for_msix_trans(struct s2io_nic *nic, int i)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003666{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003667 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003668 u64 val64;
3669 int ret = 0, cnt = 0;
3670
3671 do {
3672 val64 = readq(&bar0->xmsi_access);
Jiri Slabyb7b5a122007-10-18 23:40:29 -07003673 if (!(val64 & s2BIT(15)))
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003674 break;
3675 mdelay(1);
3676 cnt++;
Joe Perchesd44570e2009-08-24 17:29:44 +00003677 } while (cnt < 5);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003678 if (cnt == 5) {
3679 DBG_PRINT(ERR_DBG, "XMSI # %d Access failed\n", i);
3680 ret = 1;
3681 }
3682
3683 return ret;
3684}
3685
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003686static void restore_xmsi_data(struct s2io_nic *nic)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003687{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003688 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003689 u64 val64;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003690 int i, msix_index;
3691
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003692 if (nic->device_type == XFRAME_I_DEVICE)
3693 return;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003694
Joe Perchesd44570e2009-08-24 17:29:44 +00003695 for (i = 0; i < MAX_REQUESTED_MSI_X; i++) {
3696 msix_index = (i) ? ((i-1) * 8 + 1) : 0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003697 writeq(nic->msix_info[i].addr, &bar0->xmsi_address);
3698 writeq(nic->msix_info[i].data, &bar0->xmsi_data);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003699 val64 = (s2BIT(7) | s2BIT(15) | vBIT(msix_index, 26, 6));
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003700 writeq(val64, &bar0->xmsi_access);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003701 if (wait_for_msix_trans(nic, msix_index)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003702 DBG_PRINT(ERR_DBG, "%s: index: %d failed\n",
3703 __func__, msix_index);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003704 continue;
3705 }
3706 }
3707}
3708
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003709static void store_xmsi_data(struct s2io_nic *nic)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003710{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003711 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003712 u64 val64, addr, data;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003713 int i, msix_index;
3714
3715 if (nic->device_type == XFRAME_I_DEVICE)
3716 return;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003717
3718 /* Store and display */
Joe Perchesd44570e2009-08-24 17:29:44 +00003719 for (i = 0; i < MAX_REQUESTED_MSI_X; i++) {
3720 msix_index = (i) ? ((i-1) * 8 + 1) : 0;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003721 val64 = (s2BIT(15) | vBIT(msix_index, 26, 6));
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003722 writeq(val64, &bar0->xmsi_access);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003723 if (wait_for_msix_trans(nic, msix_index)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003724 DBG_PRINT(ERR_DBG, "%s: index: %d failed\n",
3725 __func__, msix_index);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003726 continue;
3727 }
3728 addr = readq(&bar0->xmsi_address);
3729 data = readq(&bar0->xmsi_data);
3730 if (addr && data) {
3731 nic->msix_info[i].addr = addr;
3732 nic->msix_info[i].data = data;
3733 }
3734 }
3735}
3736
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003737static int s2io_enable_msi_x(struct s2io_nic *nic)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003738{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05003739 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04003740 u64 rx_mat;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003741 u16 msi_control; /* Temp variable */
3742 int ret, i, j, msix_indx = 1;
Joe Perches4f870322009-08-24 17:29:42 +00003743 int size;
Joe Perchesffb5df62009-08-24 17:29:47 +00003744 struct stat_block *stats = nic->mac_control.stats_info;
3745 struct swStat *swstats = &stats->sw_stat;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003746
Joe Perches4f870322009-08-24 17:29:42 +00003747 size = nic->num_entries * sizeof(struct msix_entry);
Joe Perches44364a02009-08-24 17:29:43 +00003748 nic->entries = kzalloc(size, GFP_KERNEL);
Sivakumar Subramanibd684e42007-09-14 07:28:50 -04003749 if (!nic->entries) {
Joe Perchesd44570e2009-08-24 17:29:44 +00003750 DBG_PRINT(INFO_DBG, "%s: Memory allocation failed\n",
3751 __func__);
Joe Perchesffb5df62009-08-24 17:29:47 +00003752 swstats->mem_alloc_fail_cnt++;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003753 return -ENOMEM;
3754 }
Joe Perchesffb5df62009-08-24 17:29:47 +00003755 swstats->mem_allocated += size;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003756
Joe Perches4f870322009-08-24 17:29:42 +00003757 size = nic->num_entries * sizeof(struct s2io_msix_entry);
Joe Perches44364a02009-08-24 17:29:43 +00003758 nic->s2io_entries = kzalloc(size, GFP_KERNEL);
Sivakumar Subramanibd684e42007-09-14 07:28:50 -04003759 if (!nic->s2io_entries) {
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003760 DBG_PRINT(INFO_DBG, "%s: Memory allocation failed\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00003761 __func__);
Joe Perchesffb5df62009-08-24 17:29:47 +00003762 swstats->mem_alloc_fail_cnt++;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003763 kfree(nic->entries);
Joe Perchesffb5df62009-08-24 17:29:47 +00003764 swstats->mem_freed
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003765 += (nic->num_entries * sizeof(struct msix_entry));
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003766 return -ENOMEM;
3767 }
Joe Perchesffb5df62009-08-24 17:29:47 +00003768 swstats->mem_allocated += size;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003769
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04003770 nic->entries[0].entry = 0;
3771 nic->s2io_entries[0].entry = 0;
3772 nic->s2io_entries[0].in_use = MSIX_FLG;
3773 nic->s2io_entries[0].type = MSIX_ALARM_TYPE;
3774 nic->s2io_entries[0].arg = &nic->mac_control.fifos;
3775
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003776 for (i = 1; i < nic->num_entries; i++) {
3777 nic->entries[i].entry = ((i - 1) * 8) + 1;
3778 nic->s2io_entries[i].entry = ((i - 1) * 8) + 1;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003779 nic->s2io_entries[i].arg = NULL;
3780 nic->s2io_entries[i].in_use = 0;
3781 }
3782
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003783 rx_mat = readq(&bar0->rx_mat);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003784 for (j = 0; j < nic->config.rx_ring_num; j++) {
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003785 rx_mat |= RX_MAT_SET(j, msix_indx);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003786 nic->s2io_entries[j+1].arg = &nic->mac_control.rings[j];
3787 nic->s2io_entries[j+1].type = MSIX_RING_TYPE;
3788 nic->s2io_entries[j+1].in_use = MSIX_FLG;
3789 msix_indx += 8;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003790 }
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04003791 writeq(rx_mat, &bar0->rx_mat);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003792 readq(&bar0->rx_mat);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003793
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003794 ret = pci_enable_msix(nic->pdev, nic->entries, nic->num_entries);
Ananda Rajuc92ca042006-04-21 19:18:03 -04003795 /* We fail init if error or we get less vectors than min required */
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003796 if (ret) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00003797 DBG_PRINT(ERR_DBG, "Enabling MSI-X failed\n");
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003798 kfree(nic->entries);
Joe Perchesffb5df62009-08-24 17:29:47 +00003799 swstats->mem_freed += nic->num_entries *
3800 sizeof(struct msix_entry);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003801 kfree(nic->s2io_entries);
Joe Perchesffb5df62009-08-24 17:29:47 +00003802 swstats->mem_freed += nic->num_entries *
3803 sizeof(struct s2io_msix_entry);
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003804 nic->entries = NULL;
3805 nic->s2io_entries = NULL;
3806 return -ENOMEM;
3807 }
3808
3809 /*
3810 * To enable MSI-X, MSI also needs to be enabled, due to a bug
3811 * in the herc NIC. (Temp change, needs to be removed later)
3812 */
3813 pci_read_config_word(nic->pdev, 0x42, &msi_control);
3814 msi_control |= 0x1; /* Enable MSI */
3815 pci_write_config_word(nic->pdev, 0x42, msi_control);
3816
3817 return 0;
3818}
3819
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003820/* Handle software interrupt used during MSI(X) test */
Adrian Bunk33390a72007-12-11 23:23:06 +01003821static irqreturn_t s2io_test_intr(int irq, void *dev_id)
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003822{
3823 struct s2io_nic *sp = dev_id;
3824
3825 sp->msi_detected = 1;
3826 wake_up(&sp->msi_wait);
3827
3828 return IRQ_HANDLED;
3829}
3830
3831/* Test interrupt path by forcing a a software IRQ */
Adrian Bunk33390a72007-12-11 23:23:06 +01003832static int s2io_test_msi(struct s2io_nic *sp)
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003833{
3834 struct pci_dev *pdev = sp->pdev;
3835 struct XENA_dev_config __iomem *bar0 = sp->bar0;
3836 int err;
3837 u64 val64, saved64;
3838
3839 err = request_irq(sp->entries[1].vector, s2io_test_intr, 0,
Joe Perchesd44570e2009-08-24 17:29:44 +00003840 sp->name, sp);
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003841 if (err) {
3842 DBG_PRINT(ERR_DBG, "%s: PCI %s: cannot assign irq %d\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00003843 sp->dev->name, pci_name(pdev), pdev->irq);
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003844 return err;
3845 }
3846
Joe Perchesd44570e2009-08-24 17:29:44 +00003847 init_waitqueue_head(&sp->msi_wait);
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003848 sp->msi_detected = 0;
3849
3850 saved64 = val64 = readq(&bar0->scheduled_int_ctrl);
3851 val64 |= SCHED_INT_CTRL_ONE_SHOT;
3852 val64 |= SCHED_INT_CTRL_TIMER_EN;
3853 val64 |= SCHED_INT_CTRL_INT2MSI(1);
3854 writeq(val64, &bar0->scheduled_int_ctrl);
3855
3856 wait_event_timeout(sp->msi_wait, sp->msi_detected, HZ/10);
3857
3858 if (!sp->msi_detected) {
3859 /* MSI(X) test failed, go back to INTx mode */
Joe Perches24500222007-11-19 17:48:28 -08003860 DBG_PRINT(ERR_DBG, "%s: PCI %s: No interrupt was generated "
Joe Perches9e39f7c2009-08-25 08:52:00 +00003861 "using MSI(X) during test\n",
3862 sp->dev->name, pci_name(pdev));
Sivakumar Subramani8abc4d52007-09-15 13:11:34 -07003863
3864 err = -EOPNOTSUPP;
3865 }
3866
3867 free_irq(sp->entries[1].vector, sp);
3868
3869 writeq(saved64, &bar0->scheduled_int_ctrl);
3870
3871 return err;
3872}
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08003873
3874static void remove_msix_isr(struct s2io_nic *sp)
3875{
3876 int i;
3877 u16 msi_control;
3878
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04003879 for (i = 0; i < sp->num_entries; i++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00003880 if (sp->s2io_entries[i].in_use == MSIX_REGISTERED_SUCCESS) {
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08003881 int vector = sp->entries[i].vector;
3882 void *arg = sp->s2io_entries[i].arg;
3883 free_irq(vector, arg);
3884 }
3885 }
3886
3887 kfree(sp->entries);
3888 kfree(sp->s2io_entries);
3889 sp->entries = NULL;
3890 sp->s2io_entries = NULL;
3891
3892 pci_read_config_word(sp->pdev, 0x42, &msi_control);
3893 msi_control &= 0xFFFE; /* Disable MSI */
3894 pci_write_config_word(sp->pdev, 0x42, msi_control);
3895
3896 pci_disable_msix(sp->pdev);
3897}
3898
3899static void remove_inta_isr(struct s2io_nic *sp)
3900{
Francois Romieu80777c52012-03-09 19:13:48 +01003901 free_irq(sp->pdev->irq, sp->dev);
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08003902}
3903
Linus Torvalds1da177e2005-04-16 15:20:36 -07003904/* ********************************************************* *
3905 * Functions defined below concern the OS part of the driver *
3906 * ********************************************************* */
3907
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003908/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07003909 * s2io_open - open entry point of the driver
3910 * @dev : pointer to the device structure.
3911 * Description:
3912 * This function is the open entry point of the driver. It mainly calls a
3913 * function to allocate Rx buffers and inserts them into the buffer
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003914 * descriptors and then enables the Rx part of the NIC.
Linus Torvalds1da177e2005-04-16 15:20:36 -07003915 * Return value:
3916 * 0 on success and an appropriate (-)ve integer as defined in errno.h
3917 * file on failure.
3918 */
3919
Adrian Bunkac1f60d2005-11-06 01:46:47 +01003920static int s2io_open(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003921{
Wang Chen4cf16532008-11-12 23:38:14 -08003922 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00003923 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003924 int err = 0;
3925
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003926 /*
3927 * Make sure you have link off by default every time
Linus Torvalds1da177e2005-04-16 15:20:36 -07003928 * Nic is initialized
3929 */
3930 netif_carrier_off(dev);
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07003931 sp->last_link_state = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003932
3933 /* Initialize H/W and enable interrupts */
Ananda Rajuc92ca042006-04-21 19:18:03 -04003934 err = s2io_card_up(sp);
3935 if (err) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003936 DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n",
3937 dev->name);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07003938 goto hw_init_failed;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003939 }
3940
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04003941 if (do_s2io_prog_unicast(dev, dev->dev_addr) == FAILURE) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003942 DBG_PRINT(ERR_DBG, "Set Mac Address Failed\n");
Ananda Rajue6a8fee2006-07-06 23:58:23 -07003943 s2io_card_down(sp);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003944 err = -ENODEV;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07003945 goto hw_init_failed;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003946 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05003947 s2io_start_all_tx_queue(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003948 return 0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003949
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003950hw_init_failed:
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07003951 if (sp->config.intr_type == MSI_X) {
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003952 if (sp->entries) {
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003953 kfree(sp->entries);
Joe Perchesffb5df62009-08-24 17:29:47 +00003954 swstats->mem_freed += sp->num_entries *
3955 sizeof(struct msix_entry);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003956 }
3957 if (sp->s2io_entries) {
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003958 kfree(sp->s2io_entries);
Joe Perchesffb5df62009-08-24 17:29:47 +00003959 swstats->mem_freed += sp->num_entries *
3960 sizeof(struct s2io_msix_entry);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04003961 }
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003962 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07003963 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003964}
3965
3966/**
3967 * s2io_close -close entry point of the driver
3968 * @dev : device pointer.
3969 * Description:
3970 * This is the stop entry point of the driver. It needs to undo exactly
3971 * whatever was done by the open entry point,thus it's usually referred to
3972 * as the close function.Among other things this function mainly stops the
3973 * Rx side of the NIC and frees all the Rx buffers in the Rx rings.
3974 * Return value:
3975 * 0 on success and an appropriate (-)ve integer as defined in errno.h
3976 * file on failure.
3977 */
3978
Adrian Bunkac1f60d2005-11-06 01:46:47 +01003979static int s2io_close(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003980{
Wang Chen4cf16532008-11-12 23:38:14 -08003981 struct s2io_nic *sp = netdev_priv(dev);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08003982 struct config_param *config = &sp->config;
3983 u64 tmp64;
3984 int offset;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04003985
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05003986 /* Return if the device is already closed *
Joe Perchesd44570e2009-08-24 17:29:44 +00003987 * Can happen when s2io_card_up failed in change_mtu *
3988 */
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05003989 if (!is_s2io_card_up(sp))
3990 return 0;
3991
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05003992 s2io_stop_all_tx_queue(sp);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08003993 /* delete all populated mac entries */
3994 for (offset = 1; offset < config->max_mc_addr; offset++) {
3995 tmp64 = do_s2io_read_unicast_mc(sp, offset);
3996 if (tmp64 != S2IO_DISABLE_MAC_ENTRY)
3997 do_s2io_delete_unicast_mc(sp, tmp64);
3998 }
3999
Ananda Rajue6a8fee2006-07-06 23:58:23 -07004000 s2io_card_down(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004001
Linus Torvalds1da177e2005-04-16 15:20:36 -07004002 return 0;
4003}
4004
4005/**
4006 * s2io_xmit - Tx entry point of te driver
4007 * @skb : the socket buffer containing the Tx data.
4008 * @dev : device pointer.
4009 * Description :
4010 * This function is the Tx entry point of the driver. S2IO NIC supports
4011 * certain protocol assist features on Tx side, namely CSO, S/G, LSO.
Lucas De Marchi25985ed2011-03-30 22:57:33 -03004012 * NOTE: when device can't queue the pkt,just the trans_start variable will
Linus Torvalds1da177e2005-04-16 15:20:36 -07004013 * not be upadted.
4014 * Return value:
4015 * 0 on success & 1 on failure.
4016 */
4017
Stephen Hemminger613573252009-08-31 19:50:58 +00004018static netdev_tx_t s2io_xmit(struct sk_buff *skb, struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004019{
Wang Chen4cf16532008-11-12 23:38:14 -08004020 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004021 u16 frg_cnt, frg_len, i, queue, queue_len, put_off, get_off;
4022 register u64 val64;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004023 struct TxD *txdp;
4024 struct TxFIFO_element __iomem *tx_fifo;
Surjit Reang2fda0962008-01-24 02:08:59 -08004025 unsigned long flags = 0;
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07004026 u16 vlan_tag = 0;
Surjit Reang2fda0962008-01-24 02:08:59 -08004027 struct fifo_info *fifo = NULL;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004028 int do_spin_lock = 1;
Ananda Raju75c30b12006-07-24 19:55:09 -04004029 int offload_type;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004030 int enable_per_list_interrupt = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00004031 struct config_param *config = &sp->config;
4032 struct mac_info *mac_control = &sp->mac_control;
4033 struct stat_block *stats = mac_control->stats_info;
4034 struct swStat *swstats = &stats->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004035
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004036 DBG_PRINT(TX_DBG, "%s: In Neterion Tx routine\n", dev->name);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004037
4038 if (unlikely(skb->len <= 0)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00004039 DBG_PRINT(TX_DBG, "%s: Buffer has no data..\n", dev->name);
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004040 dev_kfree_skb_any(skb);
Patrick McHardy6ed10652009-06-23 06:03:08 +00004041 return NETDEV_TX_OK;
Surjit Reang2fda0962008-01-24 02:08:59 -08004042 }
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04004043
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004044 if (!is_s2io_card_up(sp)) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004045 DBG_PRINT(TX_DBG, "%s: Card going down for reset\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07004046 dev->name);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004047 dev_kfree_skb(skb);
Patrick McHardy6ed10652009-06-23 06:03:08 +00004048 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004049 }
4050
4051 queue = 0;
Jesse Grosseab6d182010-10-20 13:56:03 +00004052 if (vlan_tx_tag_present(skb))
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07004053 vlan_tag = vlan_tx_tag_get(skb);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004054 if (sp->config.tx_steering_type == TX_DEFAULT_STEERING) {
4055 if (skb->protocol == htons(ETH_P_IP)) {
4056 struct iphdr *ip;
4057 struct tcphdr *th;
4058 ip = ip_hdr(skb);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004059
Paul Gortmaker56f8a752011-06-21 20:33:34 -07004060 if (!ip_is_fragment(ip)) {
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004061 th = (struct tcphdr *)(((unsigned char *)ip) +
Joe Perchesd44570e2009-08-24 17:29:44 +00004062 ip->ihl*4);
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07004063
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004064 if (ip->protocol == IPPROTO_TCP) {
4065 queue_len = sp->total_tcp_fifos;
4066 queue = (ntohs(th->source) +
Joe Perchesd44570e2009-08-24 17:29:44 +00004067 ntohs(th->dest)) &
4068 sp->fifo_selector[queue_len - 1];
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004069 if (queue >= queue_len)
4070 queue = queue_len - 1;
4071 } else if (ip->protocol == IPPROTO_UDP) {
4072 queue_len = sp->total_udp_fifos;
4073 queue = (ntohs(th->source) +
Joe Perchesd44570e2009-08-24 17:29:44 +00004074 ntohs(th->dest)) &
4075 sp->fifo_selector[queue_len - 1];
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004076 if (queue >= queue_len)
4077 queue = queue_len - 1;
4078 queue += sp->udp_fifo_idx;
4079 if (skb->len > 1024)
4080 enable_per_list_interrupt = 1;
4081 do_spin_lock = 0;
4082 }
4083 }
4084 }
4085 } else if (sp->config.tx_steering_type == TX_PRIORITY_STEERING)
4086 /* get fifo number based on skb->priority value */
4087 queue = config->fifo_mapping
Joe Perchesd44570e2009-08-24 17:29:44 +00004088 [skb->priority & (MAX_TX_FIFOS - 1)];
Surjit Reang2fda0962008-01-24 02:08:59 -08004089 fifo = &mac_control->fifos[queue];
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004090
4091 if (do_spin_lock)
4092 spin_lock_irqsave(&fifo->tx_lock, flags);
4093 else {
4094 if (unlikely(!spin_trylock_irqsave(&fifo->tx_lock, flags)))
4095 return NETDEV_TX_LOCKED;
4096 }
4097
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004098 if (sp->config.multiq) {
4099 if (__netif_subqueue_stopped(dev, fifo->fifo_no)) {
4100 spin_unlock_irqrestore(&fifo->tx_lock, flags);
4101 return NETDEV_TX_BUSY;
4102 }
David S. Millerb19fa1f2008-07-08 23:14:24 -07004103 } else if (unlikely(fifo->queue_state == FIFO_QUEUE_STOP)) {
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004104 if (netif_queue_stopped(dev)) {
4105 spin_unlock_irqrestore(&fifo->tx_lock, flags);
4106 return NETDEV_TX_BUSY;
4107 }
4108 }
4109
Joe Perchesd44570e2009-08-24 17:29:44 +00004110 put_off = (u16)fifo->tx_curr_put_info.offset;
4111 get_off = (u16)fifo->tx_curr_get_info.offset;
Joe Perches43d620c2011-06-16 19:08:06 +00004112 txdp = fifo->list_info[put_off].list_virt_addr;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004113
Surjit Reang2fda0962008-01-24 02:08:59 -08004114 queue_len = fifo->tx_curr_put_info.fifo_len + 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004115 /* Avoid "put" pointer going beyond "get" pointer */
Ananda Raju863c11a2006-04-21 19:03:13 -04004116 if (txdp->Host_Control ||
Joe Perchesd44570e2009-08-24 17:29:44 +00004117 ((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) {
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -07004118 DBG_PRINT(TX_DBG, "Error in xmit, No free TXDs.\n");
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004119 s2io_stop_tx_queue(sp, fifo->fifo_no);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004120 dev_kfree_skb(skb);
Surjit Reang2fda0962008-01-24 02:08:59 -08004121 spin_unlock_irqrestore(&fifo->tx_lock, flags);
Patrick McHardy6ed10652009-06-23 06:03:08 +00004122 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004123 }
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07004124
Ananda Raju75c30b12006-07-24 19:55:09 -04004125 offload_type = s2io_offload_type(skb);
Ananda Raju75c30b12006-07-24 19:55:09 -04004126 if (offload_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07004127 txdp->Control_1 |= TXD_TCP_LSO_EN;
Ananda Raju75c30b12006-07-24 19:55:09 -04004128 txdp->Control_1 |= TXD_TCP_LSO_MSS(s2io_tcp_mss(skb));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004129 }
Patrick McHardy84fa7932006-08-29 16:44:56 -07004130 if (skb->ip_summed == CHECKSUM_PARTIAL) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004131 txdp->Control_2 |= (TXD_TX_CKO_IPV4_EN |
4132 TXD_TX_CKO_TCP_EN |
4133 TXD_TX_CKO_UDP_EN);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004134 }
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004135 txdp->Control_1 |= TXD_GATHER_CODE_FIRST;
4136 txdp->Control_1 |= TXD_LIST_OWN_XENA;
Surjit Reang2fda0962008-01-24 02:08:59 -08004137 txdp->Control_2 |= TXD_INT_NUMBER(fifo->fifo_no);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05004138 if (enable_per_list_interrupt)
4139 if (put_off & (queue_len >> 5))
4140 txdp->Control_2 |= TXD_INT_TYPE_PER_LIST;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004141 if (vlan_tag) {
raghavendra.koushik@neterion.combe3a6b02005-08-03 12:35:55 -07004142 txdp->Control_2 |= TXD_VLAN_ENABLE;
4143 txdp->Control_2 |= TXD_VLAN_TAG(vlan_tag);
4144 }
4145
Eric Dumazete743d312010-04-14 15:59:40 -07004146 frg_len = skb_headlen(skb);
Ananda Raju75c30b12006-07-24 19:55:09 -04004147 if (offload_type == SKB_GSO_UDP) {
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004148 int ufo_size;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004149
Ananda Raju75c30b12006-07-24 19:55:09 -04004150 ufo_size = s2io_udp_mss(skb);
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004151 ufo_size &= ~7;
4152 txdp->Control_1 |= TXD_UFO_EN;
4153 txdp->Control_1 |= TXD_UFO_MSS(ufo_size);
4154 txdp->Control_1 |= TXD_BUFFER0_SIZE(8);
4155#ifdef __BIG_ENDIAN
Al Viro3459feb2008-03-16 22:23:14 +00004156 /* both variants do cpu_to_be64(be32_to_cpu(...)) */
Surjit Reang2fda0962008-01-24 02:08:59 -08004157 fifo->ufo_in_band_v[put_off] =
Joe Perchesd44570e2009-08-24 17:29:44 +00004158 (__force u64)skb_shinfo(skb)->ip6_frag_id;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004159#else
Surjit Reang2fda0962008-01-24 02:08:59 -08004160 fifo->ufo_in_band_v[put_off] =
Joe Perchesd44570e2009-08-24 17:29:44 +00004161 (__force u64)skb_shinfo(skb)->ip6_frag_id << 32;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004162#endif
Surjit Reang2fda0962008-01-24 02:08:59 -08004163 txdp->Host_Control = (unsigned long)fifo->ufo_in_band_v;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004164 txdp->Buffer_Pointer = pci_map_single(sp->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00004165 fifo->ufo_in_band_v,
4166 sizeof(u64),
4167 PCI_DMA_TODEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07004168 if (pci_dma_mapping_error(sp->pdev, txdp->Buffer_Pointer))
Veena Parat491abf22007-07-23 02:37:14 -04004169 goto pci_map_failed;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004170 txdp++;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004171 }
4172
Joe Perchesd44570e2009-08-24 17:29:44 +00004173 txdp->Buffer_Pointer = pci_map_single(sp->pdev, skb->data,
4174 frg_len, PCI_DMA_TODEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07004175 if (pci_dma_mapping_error(sp->pdev, txdp->Buffer_Pointer))
Veena Parat491abf22007-07-23 02:37:14 -04004176 goto pci_map_failed;
4177
Joe Perchesd44570e2009-08-24 17:29:44 +00004178 txdp->Host_Control = (unsigned long)skb;
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004179 txdp->Control_1 |= TXD_BUFFER0_SIZE(frg_len);
Ananda Raju75c30b12006-07-24 19:55:09 -04004180 if (offload_type == SKB_GSO_UDP)
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004181 txdp->Control_1 |= TXD_UFO_EN;
4182
4183 frg_cnt = skb_shinfo(skb)->nr_frags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004184 /* For fragmented SKB. */
4185 for (i = 0; i < frg_cnt; i++) {
Eric Dumazet9e903e02011-10-18 21:00:24 +00004186 const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07004187 /* A '0' length fragment will be ignored */
Eric Dumazet9e903e02011-10-18 21:00:24 +00004188 if (!skb_frag_size(frag))
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07004189 continue;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004190 txdp++;
Ian Campbellf0d06d82011-09-21 21:53:15 +00004191 txdp->Buffer_Pointer = (u64)skb_frag_dma_map(&sp->pdev->dev,
4192 frag, 0,
Eric Dumazet9e903e02011-10-18 21:00:24 +00004193 skb_frag_size(frag),
Ian Campbell5d6bcdf2011-10-06 11:10:48 +01004194 DMA_TO_DEVICE);
Eric Dumazet9e903e02011-10-18 21:00:24 +00004195 txdp->Control_1 = TXD_BUFFER0_SIZE(skb_frag_size(frag));
Ananda Raju75c30b12006-07-24 19:55:09 -04004196 if (offload_type == SKB_GSO_UDP)
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004197 txdp->Control_1 |= TXD_UFO_EN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004198 }
4199 txdp->Control_1 |= TXD_GATHER_CODE_LAST;
4200
Ananda Raju75c30b12006-07-24 19:55:09 -04004201 if (offload_type == SKB_GSO_UDP)
Ananda Rajufed5ecc2005-11-14 15:25:08 -05004202 frg_cnt++; /* as Txd0 was used for inband header */
4203
Linus Torvalds1da177e2005-04-16 15:20:36 -07004204 tx_fifo = mac_control->tx_FIFO_start[queue];
Surjit Reang2fda0962008-01-24 02:08:59 -08004205 val64 = fifo->list_info[put_off].list_phy_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004206 writeq(val64, &tx_fifo->TxDL_Pointer);
4207
4208 val64 = (TX_FIFO_LAST_TXD_NUM(frg_cnt) | TX_FIFO_FIRST_LIST |
4209 TX_FIFO_LAST_LIST);
Ananda Raju75c30b12006-07-24 19:55:09 -04004210 if (offload_type)
4211 val64 |= TX_FIFO_SPECIAL_FUNC;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004212
Linus Torvalds1da177e2005-04-16 15:20:36 -07004213 writeq(val64, &tx_fifo->List_Control);
4214
raghavendra.koushik@neterion.com303bcb42005-08-03 12:41:38 -07004215 mmiowb();
4216
Linus Torvalds1da177e2005-04-16 15:20:36 -07004217 put_off++;
Surjit Reang2fda0962008-01-24 02:08:59 -08004218 if (put_off == fifo->tx_curr_put_info.fifo_len + 1)
Ananda Raju863c11a2006-04-21 19:03:13 -04004219 put_off = 0;
Surjit Reang2fda0962008-01-24 02:08:59 -08004220 fifo->tx_curr_put_info.offset = put_off;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004221
4222 /* Avoid "put" pointer going beyond "get" pointer */
Ananda Raju863c11a2006-04-21 19:03:13 -04004223 if (((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) {
Joe Perchesffb5df62009-08-24 17:29:47 +00004224 swstats->fifo_full_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004225 DBG_PRINT(TX_DBG,
4226 "No free TxDs for xmit, Put: 0x%x Get:0x%x\n",
4227 put_off, get_off);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004228 s2io_stop_tx_queue(sp, fifo->fifo_no);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004229 }
Joe Perchesffb5df62009-08-24 17:29:47 +00004230 swstats->mem_allocated += skb->truesize;
Surjit Reang2fda0962008-01-24 02:08:59 -08004231 spin_unlock_irqrestore(&fifo->tx_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004232
Sreenivasa Honnurf6f4bfa2008-03-25 15:11:56 -04004233 if (sp->config.intr_type == MSI_X)
4234 tx_intr_handler(fifo);
4235
Patrick McHardy6ed10652009-06-23 06:03:08 +00004236 return NETDEV_TX_OK;
Joe Perchesffb5df62009-08-24 17:29:47 +00004237
Veena Parat491abf22007-07-23 02:37:14 -04004238pci_map_failed:
Joe Perchesffb5df62009-08-24 17:29:47 +00004239 swstats->pci_map_fail_cnt++;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004240 s2io_stop_tx_queue(sp, fifo->fifo_no);
Joe Perchesffb5df62009-08-24 17:29:47 +00004241 swstats->mem_freed += skb->truesize;
Veena Parat491abf22007-07-23 02:37:14 -04004242 dev_kfree_skb(skb);
Surjit Reang2fda0962008-01-24 02:08:59 -08004243 spin_unlock_irqrestore(&fifo->tx_lock, flags);
Patrick McHardy6ed10652009-06-23 06:03:08 +00004244 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004245}
4246
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -07004247static void
4248s2io_alarm_handle(unsigned long data)
4249{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004250 struct s2io_nic *sp = (struct s2io_nic *)data;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004251 struct net_device *dev = sp->dev;
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -07004252
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004253 s2io_handle_errors(dev);
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -07004254 mod_timer(&sp->alarm_timer, jiffies + HZ / 2);
4255}
4256
David Howells7d12e782006-10-05 14:55:46 +01004257static irqreturn_t s2io_msix_ring_handle(int irq, void *dev_id)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004258{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004259 struct ring_info *ring = (struct ring_info *)dev_id;
4260 struct s2io_nic *sp = ring->nic;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004261 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004262
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004263 if (unlikely(!is_s2io_card_up(sp)))
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004264 return IRQ_HANDLED;
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004265
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004266 if (sp->config.napi) {
Al Viro1a79d1c2008-06-02 10:59:02 +01004267 u8 __iomem *addr = NULL;
4268 u8 val8 = 0;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004269
Al Viro1a79d1c2008-06-02 10:59:02 +01004270 addr = (u8 __iomem *)&bar0->xmsi_mask_reg;
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004271 addr += (7 - ring->ring_no);
4272 val8 = (ring->ring_no == 0) ? 0x7f : 0xff;
4273 writeb(val8, addr);
4274 val8 = readb(addr);
Ben Hutchings288379f2009-01-19 16:43:59 -08004275 napi_schedule(&ring->napi);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004276 } else {
4277 rx_intr_handler(ring, 0);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07004278 s2io_chk_rx_buffers(sp, ring);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004279 }
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05004280
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004281 return IRQ_HANDLED;
4282}
4283
David Howells7d12e782006-10-05 14:55:46 +01004284static irqreturn_t s2io_msix_fifo_handle(int irq, void *dev_id)
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004285{
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004286 int i;
4287 struct fifo_info *fifos = (struct fifo_info *)dev_id;
4288 struct s2io_nic *sp = fifos->nic;
4289 struct XENA_dev_config __iomem *bar0 = sp->bar0;
4290 struct config_param *config = &sp->config;
4291 u64 reason;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004292
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004293 if (unlikely(!is_s2io_card_up(sp)))
4294 return IRQ_NONE;
4295
4296 reason = readq(&bar0->general_int_status);
4297 if (unlikely(reason == S2IO_MINUS_ONE))
4298 /* Nothing much can be done. Get out */
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004299 return IRQ_HANDLED;
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004300
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04004301 if (reason & (GEN_INTR_TXPIC | GEN_INTR_TXTRAFFIC)) {
4302 writeq(S2IO_MINUS_ONE, &bar0->general_int_mask);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004303
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04004304 if (reason & GEN_INTR_TXPIC)
4305 s2io_txpic_intr_handle(sp);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004306
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04004307 if (reason & GEN_INTR_TXTRAFFIC)
4308 writeq(S2IO_MINUS_ONE, &bar0->tx_traffic_int);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004309
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04004310 for (i = 0; i < config->tx_fifo_num; i++)
4311 tx_intr_handler(&fifos[i]);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004312
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04004313 writeq(sp->general_int_mask, &bar0->general_int_mask);
4314 readl(&bar0->general_int_status);
4315 return IRQ_HANDLED;
4316 }
4317 /* The interrupt was not raised by us */
4318 return IRQ_NONE;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04004319}
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04004320
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004321static void s2io_txpic_intr_handle(struct s2io_nic *sp)
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004322{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004323 struct XENA_dev_config __iomem *bar0 = sp->bar0;
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004324 u64 val64;
4325
4326 val64 = readq(&bar0->pic_int_status);
4327 if (val64 & PIC_INT_GPIO) {
4328 val64 = readq(&bar0->gpio_int_reg);
4329 if ((val64 & GPIO_INT_REG_LINK_DOWN) &&
4330 (val64 & GPIO_INT_REG_LINK_UP)) {
Ananda Rajuc92ca042006-04-21 19:18:03 -04004331 /*
4332 * This is unstable state so clear both up/down
4333 * interrupt and adapter to re-evaluate the link state.
4334 */
Joe Perchesd44570e2009-08-24 17:29:44 +00004335 val64 |= GPIO_INT_REG_LINK_DOWN;
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004336 val64 |= GPIO_INT_REG_LINK_UP;
4337 writeq(val64, &bar0->gpio_int_reg);
Ananda Rajuc92ca042006-04-21 19:18:03 -04004338 val64 = readq(&bar0->gpio_int_mask);
4339 val64 &= ~(GPIO_INT_MASK_LINK_UP |
4340 GPIO_INT_MASK_LINK_DOWN);
4341 writeq(val64, &bar0->gpio_int_mask);
Joe Perchesd44570e2009-08-24 17:29:44 +00004342 } else if (val64 & GPIO_INT_REG_LINK_UP) {
Ananda Rajuc92ca042006-04-21 19:18:03 -04004343 val64 = readq(&bar0->adapter_status);
Joe Perchesd44570e2009-08-24 17:29:44 +00004344 /* Enable Adapter */
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004345 val64 = readq(&bar0->adapter_control);
4346 val64 |= ADAPTER_CNTL_EN;
4347 writeq(val64, &bar0->adapter_control);
4348 val64 |= ADAPTER_LED_ON;
4349 writeq(val64, &bar0->adapter_control);
4350 if (!sp->device_enabled_once)
4351 sp->device_enabled_once = 1;
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004352
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004353 s2io_link(sp, LINK_UP);
4354 /*
4355 * unmask link down interrupt and mask link-up
4356 * intr
4357 */
4358 val64 = readq(&bar0->gpio_int_mask);
4359 val64 &= ~GPIO_INT_MASK_LINK_DOWN;
4360 val64 |= GPIO_INT_MASK_LINK_UP;
4361 writeq(val64, &bar0->gpio_int_mask);
Ananda Rajuc92ca042006-04-21 19:18:03 -04004362
Joe Perchesd44570e2009-08-24 17:29:44 +00004363 } else if (val64 & GPIO_INT_REG_LINK_DOWN) {
Ananda Rajuc92ca042006-04-21 19:18:03 -04004364 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004365 s2io_link(sp, LINK_DOWN);
4366 /* Link is down so unmaks link up interrupt */
4367 val64 = readq(&bar0->gpio_int_mask);
4368 val64 &= ~GPIO_INT_MASK_LINK_UP;
4369 val64 |= GPIO_INT_MASK_LINK_DOWN;
4370 writeq(val64, &bar0->gpio_int_mask);
Sivakumar Subramaniac1f90d2007-02-24 02:01:31 -05004371
4372 /* turn off LED */
4373 val64 = readq(&bar0->adapter_control);
Joe Perchesd44570e2009-08-24 17:29:44 +00004374 val64 = val64 & (~ADAPTER_LED_ON);
Sivakumar Subramaniac1f90d2007-02-24 02:01:31 -05004375 writeq(val64, &bar0->adapter_control);
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004376 }
4377 }
Ananda Rajuc92ca042006-04-21 19:18:03 -04004378 val64 = readq(&bar0->gpio_int_mask);
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07004379}
4380
Linus Torvalds1da177e2005-04-16 15:20:36 -07004381/**
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004382 * do_s2io_chk_alarm_bit - Check for alarm and incrment the counter
4383 * @value: alarm bits
4384 * @addr: address value
4385 * @cnt: counter variable
4386 * Description: Check for alarm and increment the counter
4387 * Return Value:
4388 * 1 - if alarm bit set
4389 * 0 - if alarm bit is not set
4390 */
Joe Perchesd44570e2009-08-24 17:29:44 +00004391static int do_s2io_chk_alarm_bit(u64 value, void __iomem *addr,
4392 unsigned long long *cnt)
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004393{
4394 u64 val64;
4395 val64 = readq(addr);
Joe Perchesd44570e2009-08-24 17:29:44 +00004396 if (val64 & value) {
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004397 writeq(val64, addr);
4398 (*cnt)++;
4399 return 1;
4400 }
4401 return 0;
4402
4403}
4404
4405/**
4406 * s2io_handle_errors - Xframe error indication handler
4407 * @nic: device private variable
4408 * Description: Handle alarms such as loss of link, single or
4409 * double ECC errors, critical and serious errors.
4410 * Return Value:
4411 * NONE
4412 */
Joe Perchesd44570e2009-08-24 17:29:44 +00004413static void s2io_handle_errors(void *dev_id)
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004414{
Joe Perchesd44570e2009-08-24 17:29:44 +00004415 struct net_device *dev = (struct net_device *)dev_id;
Wang Chen4cf16532008-11-12 23:38:14 -08004416 struct s2io_nic *sp = netdev_priv(dev);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004417 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Joe Perchesd44570e2009-08-24 17:29:44 +00004418 u64 temp64 = 0, val64 = 0;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004419 int i = 0;
4420
4421 struct swStat *sw_stat = &sp->mac_control.stats_info->sw_stat;
4422 struct xpakStat *stats = &sp->mac_control.stats_info->xpak_stat;
4423
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004424 if (!is_s2io_card_up(sp))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004425 return;
4426
4427 if (pci_channel_offline(sp->pdev))
4428 return;
4429
4430 memset(&sw_stat->ring_full_cnt, 0,
Joe Perchesd44570e2009-08-24 17:29:44 +00004431 sizeof(sw_stat->ring_full_cnt));
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004432
4433 /* Handling the XPAK counters update */
Joe Perchesd44570e2009-08-24 17:29:44 +00004434 if (stats->xpak_timer_count < 72000) {
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004435 /* waiting for an hour */
4436 stats->xpak_timer_count++;
4437 } else {
4438 s2io_updt_xpak_counter(dev);
4439 /* reset the count to zero */
4440 stats->xpak_timer_count = 0;
4441 }
4442
4443 /* Handling link status change error Intr */
4444 if (s2io_link_fault_indication(sp) == MAC_RMAC_ERR_TIMER) {
4445 val64 = readq(&bar0->mac_rmac_err_reg);
4446 writeq(val64, &bar0->mac_rmac_err_reg);
4447 if (val64 & RMAC_LINK_STATE_CHANGE_INT)
4448 schedule_work(&sp->set_link_task);
4449 }
4450
4451 /* In case of a serious error, the device will be Reset. */
4452 if (do_s2io_chk_alarm_bit(SERR_SOURCE_ANY, &bar0->serr_source,
Joe Perchesd44570e2009-08-24 17:29:44 +00004453 &sw_stat->serious_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004454 goto reset;
4455
4456 /* Check for data parity error */
4457 if (do_s2io_chk_alarm_bit(GPIO_INT_REG_DP_ERR_INT, &bar0->gpio_int_reg,
Joe Perchesd44570e2009-08-24 17:29:44 +00004458 &sw_stat->parity_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004459 goto reset;
4460
4461 /* Check for ring full counter */
4462 if (sp->device_type == XFRAME_II_DEVICE) {
4463 val64 = readq(&bar0->ring_bump_counter1);
Joe Perchesd44570e2009-08-24 17:29:44 +00004464 for (i = 0; i < 4; i++) {
4465 temp64 = (val64 & vBIT(0xFFFF, (i*16), 16));
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004466 temp64 >>= 64 - ((i+1)*16);
4467 sw_stat->ring_full_cnt[i] += temp64;
4468 }
4469
4470 val64 = readq(&bar0->ring_bump_counter2);
Joe Perchesd44570e2009-08-24 17:29:44 +00004471 for (i = 0; i < 4; i++) {
4472 temp64 = (val64 & vBIT(0xFFFF, (i*16), 16));
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004473 temp64 >>= 64 - ((i+1)*16);
Joe Perchesd44570e2009-08-24 17:29:44 +00004474 sw_stat->ring_full_cnt[i+4] += temp64;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004475 }
4476 }
4477
4478 val64 = readq(&bar0->txdma_int_status);
4479 /*check for pfc_err*/
4480 if (val64 & TXDMA_PFC_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004481 if (do_s2io_chk_alarm_bit(PFC_ECC_DB_ERR | PFC_SM_ERR_ALARM |
4482 PFC_MISC_0_ERR | PFC_MISC_1_ERR |
4483 PFC_PCIX_ERR,
4484 &bar0->pfc_err_reg,
4485 &sw_stat->pfc_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004486 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004487 do_s2io_chk_alarm_bit(PFC_ECC_SG_ERR,
4488 &bar0->pfc_err_reg,
4489 &sw_stat->pfc_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004490 }
4491
4492 /*check for tda_err*/
4493 if (val64 & TXDMA_TDA_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004494 if (do_s2io_chk_alarm_bit(TDA_Fn_ECC_DB_ERR |
4495 TDA_SM0_ERR_ALARM |
4496 TDA_SM1_ERR_ALARM,
4497 &bar0->tda_err_reg,
4498 &sw_stat->tda_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004499 goto reset;
4500 do_s2io_chk_alarm_bit(TDA_Fn_ECC_SG_ERR | TDA_PCIX_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004501 &bar0->tda_err_reg,
4502 &sw_stat->tda_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004503 }
4504 /*check for pcc_err*/
4505 if (val64 & TXDMA_PCC_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004506 if (do_s2io_chk_alarm_bit(PCC_SM_ERR_ALARM | PCC_WR_ERR_ALARM |
4507 PCC_N_SERR | PCC_6_COF_OV_ERR |
4508 PCC_7_COF_OV_ERR | PCC_6_LSO_OV_ERR |
4509 PCC_7_LSO_OV_ERR | PCC_FB_ECC_DB_ERR |
4510 PCC_TXB_ECC_DB_ERR,
4511 &bar0->pcc_err_reg,
4512 &sw_stat->pcc_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004513 goto reset;
4514 do_s2io_chk_alarm_bit(PCC_FB_ECC_SG_ERR | PCC_TXB_ECC_SG_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004515 &bar0->pcc_err_reg,
4516 &sw_stat->pcc_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004517 }
4518
4519 /*check for tti_err*/
4520 if (val64 & TXDMA_TTI_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004521 if (do_s2io_chk_alarm_bit(TTI_SM_ERR_ALARM,
4522 &bar0->tti_err_reg,
4523 &sw_stat->tti_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004524 goto reset;
4525 do_s2io_chk_alarm_bit(TTI_ECC_SG_ERR | TTI_ECC_DB_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004526 &bar0->tti_err_reg,
4527 &sw_stat->tti_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004528 }
4529
4530 /*check for lso_err*/
4531 if (val64 & TXDMA_LSO_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004532 if (do_s2io_chk_alarm_bit(LSO6_ABORT | LSO7_ABORT |
4533 LSO6_SM_ERR_ALARM | LSO7_SM_ERR_ALARM,
4534 &bar0->lso_err_reg,
4535 &sw_stat->lso_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004536 goto reset;
4537 do_s2io_chk_alarm_bit(LSO6_SEND_OFLOW | LSO7_SEND_OFLOW,
Joe Perchesd44570e2009-08-24 17:29:44 +00004538 &bar0->lso_err_reg,
4539 &sw_stat->lso_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004540 }
4541
4542 /*check for tpa_err*/
4543 if (val64 & TXDMA_TPA_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004544 if (do_s2io_chk_alarm_bit(TPA_SM_ERR_ALARM,
4545 &bar0->tpa_err_reg,
4546 &sw_stat->tpa_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004547 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004548 do_s2io_chk_alarm_bit(TPA_TX_FRM_DROP,
4549 &bar0->tpa_err_reg,
4550 &sw_stat->tpa_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004551 }
4552
4553 /*check for sm_err*/
4554 if (val64 & TXDMA_SM_INT) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004555 if (do_s2io_chk_alarm_bit(SM_SM_ERR_ALARM,
4556 &bar0->sm_err_reg,
4557 &sw_stat->sm_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004558 goto reset;
4559 }
4560
4561 val64 = readq(&bar0->mac_int_status);
4562 if (val64 & MAC_INT_STATUS_TMAC_INT) {
4563 if (do_s2io_chk_alarm_bit(TMAC_TX_BUF_OVRN | TMAC_TX_SM_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004564 &bar0->mac_tmac_err_reg,
4565 &sw_stat->mac_tmac_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004566 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004567 do_s2io_chk_alarm_bit(TMAC_ECC_SG_ERR | TMAC_ECC_DB_ERR |
4568 TMAC_DESC_ECC_SG_ERR |
4569 TMAC_DESC_ECC_DB_ERR,
4570 &bar0->mac_tmac_err_reg,
4571 &sw_stat->mac_tmac_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004572 }
4573
4574 val64 = readq(&bar0->xgxs_int_status);
4575 if (val64 & XGXS_INT_STATUS_TXGXS) {
4576 if (do_s2io_chk_alarm_bit(TXGXS_ESTORE_UFLOW | TXGXS_TX_SM_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004577 &bar0->xgxs_txgxs_err_reg,
4578 &sw_stat->xgxs_txgxs_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004579 goto reset;
4580 do_s2io_chk_alarm_bit(TXGXS_ECC_SG_ERR | TXGXS_ECC_DB_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004581 &bar0->xgxs_txgxs_err_reg,
4582 &sw_stat->xgxs_txgxs_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004583 }
4584
4585 val64 = readq(&bar0->rxdma_int_status);
4586 if (val64 & RXDMA_INT_RC_INT_M) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004587 if (do_s2io_chk_alarm_bit(RC_PRCn_ECC_DB_ERR |
4588 RC_FTC_ECC_DB_ERR |
4589 RC_PRCn_SM_ERR_ALARM |
4590 RC_FTC_SM_ERR_ALARM,
4591 &bar0->rc_err_reg,
4592 &sw_stat->rc_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004593 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004594 do_s2io_chk_alarm_bit(RC_PRCn_ECC_SG_ERR |
4595 RC_FTC_ECC_SG_ERR |
4596 RC_RDA_FAIL_WR_Rn, &bar0->rc_err_reg,
4597 &sw_stat->rc_err_cnt);
4598 if (do_s2io_chk_alarm_bit(PRC_PCI_AB_RD_Rn |
4599 PRC_PCI_AB_WR_Rn |
4600 PRC_PCI_AB_F_WR_Rn,
4601 &bar0->prc_pcix_err_reg,
4602 &sw_stat->prc_pcix_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004603 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004604 do_s2io_chk_alarm_bit(PRC_PCI_DP_RD_Rn |
4605 PRC_PCI_DP_WR_Rn |
4606 PRC_PCI_DP_F_WR_Rn,
4607 &bar0->prc_pcix_err_reg,
4608 &sw_stat->prc_pcix_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004609 }
4610
4611 if (val64 & RXDMA_INT_RPA_INT_M) {
4612 if (do_s2io_chk_alarm_bit(RPA_SM_ERR_ALARM | RPA_CREDIT_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004613 &bar0->rpa_err_reg,
4614 &sw_stat->rpa_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004615 goto reset;
4616 do_s2io_chk_alarm_bit(RPA_ECC_SG_ERR | RPA_ECC_DB_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004617 &bar0->rpa_err_reg,
4618 &sw_stat->rpa_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004619 }
4620
4621 if (val64 & RXDMA_INT_RDA_INT_M) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004622 if (do_s2io_chk_alarm_bit(RDA_RXDn_ECC_DB_ERR |
4623 RDA_FRM_ECC_DB_N_AERR |
4624 RDA_SM1_ERR_ALARM |
4625 RDA_SM0_ERR_ALARM |
4626 RDA_RXD_ECC_DB_SERR,
4627 &bar0->rda_err_reg,
4628 &sw_stat->rda_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004629 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004630 do_s2io_chk_alarm_bit(RDA_RXDn_ECC_SG_ERR |
4631 RDA_FRM_ECC_SG_ERR |
4632 RDA_MISC_ERR |
4633 RDA_PCIX_ERR,
4634 &bar0->rda_err_reg,
4635 &sw_stat->rda_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004636 }
4637
4638 if (val64 & RXDMA_INT_RTI_INT_M) {
Joe Perchesd44570e2009-08-24 17:29:44 +00004639 if (do_s2io_chk_alarm_bit(RTI_SM_ERR_ALARM,
4640 &bar0->rti_err_reg,
4641 &sw_stat->rti_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004642 goto reset;
4643 do_s2io_chk_alarm_bit(RTI_ECC_SG_ERR | RTI_ECC_DB_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004644 &bar0->rti_err_reg,
4645 &sw_stat->rti_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004646 }
4647
4648 val64 = readq(&bar0->mac_int_status);
4649 if (val64 & MAC_INT_STATUS_RMAC_INT) {
4650 if (do_s2io_chk_alarm_bit(RMAC_RX_BUFF_OVRN | RMAC_RX_SM_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004651 &bar0->mac_rmac_err_reg,
4652 &sw_stat->mac_rmac_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004653 goto reset;
Joe Perchesd44570e2009-08-24 17:29:44 +00004654 do_s2io_chk_alarm_bit(RMAC_UNUSED_INT |
4655 RMAC_SINGLE_ECC_ERR |
4656 RMAC_DOUBLE_ECC_ERR,
4657 &bar0->mac_rmac_err_reg,
4658 &sw_stat->mac_rmac_err_cnt);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004659 }
4660
4661 val64 = readq(&bar0->xgxs_int_status);
4662 if (val64 & XGXS_INT_STATUS_RXGXS) {
4663 if (do_s2io_chk_alarm_bit(RXGXS_ESTORE_OFLOW | RXGXS_RX_SM_ERR,
Joe Perchesd44570e2009-08-24 17:29:44 +00004664 &bar0->xgxs_rxgxs_err_reg,
4665 &sw_stat->xgxs_rxgxs_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004666 goto reset;
4667 }
4668
4669 val64 = readq(&bar0->mc_int_status);
Joe Perchesd44570e2009-08-24 17:29:44 +00004670 if (val64 & MC_INT_STATUS_MC_INT) {
4671 if (do_s2io_chk_alarm_bit(MC_ERR_REG_SM_ERR,
4672 &bar0->mc_err_reg,
4673 &sw_stat->mc_err_cnt))
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004674 goto reset;
4675
4676 /* Handling Ecc errors */
4677 if (val64 & (MC_ERR_REG_ECC_ALL_SNG | MC_ERR_REG_ECC_ALL_DBL)) {
4678 writeq(val64, &bar0->mc_err_reg);
4679 if (val64 & MC_ERR_REG_ECC_ALL_DBL) {
4680 sw_stat->double_ecc_errs++;
4681 if (sp->device_type != XFRAME_II_DEVICE) {
4682 /*
4683 * Reset XframeI only if critical error
4684 */
4685 if (val64 &
Joe Perchesd44570e2009-08-24 17:29:44 +00004686 (MC_ERR_REG_MIRI_ECC_DB_ERR_0 |
4687 MC_ERR_REG_MIRI_ECC_DB_ERR_1))
4688 goto reset;
4689 }
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004690 } else
4691 sw_stat->single_ecc_errs++;
4692 }
4693 }
4694 return;
4695
4696reset:
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05004697 s2io_stop_all_tx_queue(sp);
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004698 schedule_work(&sp->rst_timer_task);
4699 sw_stat->soft_reset_cnt++;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07004700}
4701
4702/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07004703 * s2io_isr - ISR handler of the device .
4704 * @irq: the irq of the device.
4705 * @dev_id: a void pointer to the dev structure of the NIC.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004706 * Description: This function is the ISR handler of the device. It
4707 * identifies the reason for the interrupt and calls the relevant
4708 * service routines. As a contongency measure, this ISR allocates the
Linus Torvalds1da177e2005-04-16 15:20:36 -07004709 * recv buffers, if their numbers are below the panic value which is
4710 * presently set to 25% of the original number of rcv buffers allocated.
4711 * Return value:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004712 * IRQ_HANDLED: will be returned if IRQ was handled by this routine
Linus Torvalds1da177e2005-04-16 15:20:36 -07004713 * IRQ_NONE: will be returned if interrupt is not from our device
4714 */
David Howells7d12e782006-10-05 14:55:46 +01004715static irqreturn_t s2io_isr(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004716{
Joe Perchesd44570e2009-08-24 17:29:44 +00004717 struct net_device *dev = (struct net_device *)dev_id;
Wang Chen4cf16532008-11-12 23:38:14 -08004718 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004719 struct XENA_dev_config __iomem *bar0 = sp->bar0;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004720 int i;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004721 u64 reason = 0;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004722 struct mac_info *mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004723 struct config_param *config;
4724
Linas Vepstasd796fdb2007-05-14 18:37:30 -05004725 /* Pretend we handled any irq's from a disconnected card */
4726 if (pci_channel_offline(sp->pdev))
4727 return IRQ_NONE;
4728
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004729 if (!is_s2io_card_up(sp))
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004730 return IRQ_NONE;
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004731
Linus Torvalds1da177e2005-04-16 15:20:36 -07004732 config = &sp->config;
Joe Perchesffb5df62009-08-24 17:29:47 +00004733 mac_control = &sp->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004734
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004735 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07004736 * Identify the cause for interrupt and call the appropriate
4737 * interrupt handler. Causes for the interrupt could be;
4738 * 1. Rx of packet.
4739 * 2. Tx complete.
4740 * 3. Link down.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004741 */
4742 reason = readq(&bar0->general_int_status);
4743
Joe Perchesd44570e2009-08-24 17:29:44 +00004744 if (unlikely(reason == S2IO_MINUS_ONE))
4745 return IRQ_HANDLED; /* Nothing much can be done. Get out */
Linus Torvalds1da177e2005-04-16 15:20:36 -07004746
Joe Perchesd44570e2009-08-24 17:29:44 +00004747 if (reason &
4748 (GEN_INTR_RXTRAFFIC | GEN_INTR_TXTRAFFIC | GEN_INTR_TXPIC)) {
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004749 writeq(S2IO_MINUS_ONE, &bar0->general_int_mask);
4750
4751 if (config->napi) {
4752 if (reason & GEN_INTR_RXTRAFFIC) {
Ben Hutchings288379f2009-01-19 16:43:59 -08004753 napi_schedule(&sp->napi);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04004754 writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_mask);
4755 writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int);
4756 readl(&bar0->rx_traffic_int);
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05004757 }
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004758 } else {
4759 /*
4760 * rx_traffic_int reg is an R1 register, writing all 1's
4761 * will ensure that the actual interrupt causing bit
4762 * get's cleared and hence a read can be avoided.
4763 */
4764 if (reason & GEN_INTR_RXTRAFFIC)
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004765 writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int);
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004766
Joe Perches13d866a2009-08-24 17:29:41 +00004767 for (i = 0; i < config->rx_ring_num; i++) {
4768 struct ring_info *ring = &mac_control->rings[i];
4769
4770 rx_intr_handler(ring, 0);
4771 }
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05004772 }
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004773
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05004774 /*
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004775 * tx_traffic_int reg is an R1 register, writing all 1's
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05004776 * will ensure that the actual interrupt causing bit get's
4777 * cleared and hence a read can be avoided.
4778 */
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004779 if (reason & GEN_INTR_TXTRAFFIC)
4780 writeq(S2IO_MINUS_ONE, &bar0->tx_traffic_int);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05004781
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004782 for (i = 0; i < config->tx_fifo_num; i++)
4783 tx_intr_handler(&mac_control->fifos[i]);
4784
4785 if (reason & GEN_INTR_TXPIC)
4786 s2io_txpic_intr_handle(sp);
4787
4788 /*
4789 * Reallocate the buffers from the interrupt handler itself.
4790 */
4791 if (!config->napi) {
Joe Perches13d866a2009-08-24 17:29:41 +00004792 for (i = 0; i < config->rx_ring_num; i++) {
4793 struct ring_info *ring = &mac_control->rings[i];
4794
4795 s2io_chk_rx_buffers(sp, ring);
4796 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07004797 }
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004798 writeq(sp->general_int_mask, &bar0->general_int_mask);
4799 readl(&bar0->general_int_status);
4800
4801 return IRQ_HANDLED;
4802
Joe Perchesd44570e2009-08-24 17:29:44 +00004803 } else if (!reason) {
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07004804 /* The interrupt was not raised by us */
4805 return IRQ_NONE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004806 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07004807
Linus Torvalds1da177e2005-04-16 15:20:36 -07004808 return IRQ_HANDLED;
4809}
4810
4811/**
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004812 * s2io_updt_stats -
4813 */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004814static void s2io_updt_stats(struct s2io_nic *sp)
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004815{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004816 struct XENA_dev_config __iomem *bar0 = sp->bar0;
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004817 u64 val64;
4818 int cnt = 0;
4819
Sivakumar Subramani92b84432007-09-06 06:51:14 -04004820 if (is_s2io_card_up(sp)) {
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004821 /* Apprx 30us on a 133 MHz bus */
4822 val64 = SET_UPDT_CLICKS(10) |
4823 STAT_CFG_ONE_SHOT_EN | STAT_CFG_STAT_EN;
4824 writeq(val64, &bar0->stat_cfg);
4825 do {
4826 udelay(100);
4827 val64 = readq(&bar0->stat_cfg);
Jiri Slabyb7b5a122007-10-18 23:40:29 -07004828 if (!(val64 & s2BIT(0)))
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004829 break;
4830 cnt++;
4831 if (cnt == 5)
4832 break; /* Updt failed */
Joe Perchesd44570e2009-08-24 17:29:44 +00004833 } while (1);
Sivakumar Subramani8a4bdba2007-09-18 18:14:20 -04004834 }
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004835}
4836
4837/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004838 * s2io_get_stats - Updates the device statistics structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004839 * @dev : pointer to the device structure.
4840 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004841 * This function updates the device statistics structure in the s2io_nic
Linus Torvalds1da177e2005-04-16 15:20:36 -07004842 * structure and returns a pointer to the same.
4843 * Return value:
4844 * pointer to the updated net_device_stats structure.
4845 */
Adrian Bunkac1f60d2005-11-06 01:46:47 +01004846static struct net_device_stats *s2io_get_stats(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004847{
Wang Chen4cf16532008-11-12 23:38:14 -08004848 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00004849 struct mac_info *mac_control = &sp->mac_control;
4850 struct stat_block *stats = mac_control->stats_info;
Jon Mason4a490432010-07-02 09:13:49 +00004851 u64 delta;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004852
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07004853 /* Configure Stats for immediate updt */
4854 s2io_updt_stats(sp);
4855
Jon Mason4a490432010-07-02 09:13:49 +00004856 /* A device reset will cause the on-adapter statistics to be zero'ed.
4857 * This can be done while running by changing the MTU. To prevent the
4858 * system from having the stats zero'ed, the driver keeps a copy of the
4859 * last update to the system (which is also zero'ed on reset). This
4860 * enables the driver to accurately know the delta between the last
4861 * update and the current update.
4862 */
4863 delta = ((u64) le32_to_cpu(stats->rmac_vld_frms_oflow) << 32 |
4864 le32_to_cpu(stats->rmac_vld_frms)) - sp->stats.rx_packets;
4865 sp->stats.rx_packets += delta;
4866 dev->stats.rx_packets += delta;
Joe Perchesffb5df62009-08-24 17:29:47 +00004867
Jon Mason4a490432010-07-02 09:13:49 +00004868 delta = ((u64) le32_to_cpu(stats->tmac_frms_oflow) << 32 |
4869 le32_to_cpu(stats->tmac_frms)) - sp->stats.tx_packets;
4870 sp->stats.tx_packets += delta;
4871 dev->stats.tx_packets += delta;
Joe Perchesffb5df62009-08-24 17:29:47 +00004872
Jon Mason4a490432010-07-02 09:13:49 +00004873 delta = ((u64) le32_to_cpu(stats->rmac_data_octets_oflow) << 32 |
4874 le32_to_cpu(stats->rmac_data_octets)) - sp->stats.rx_bytes;
4875 sp->stats.rx_bytes += delta;
4876 dev->stats.rx_bytes += delta;
Joe Perchesffb5df62009-08-24 17:29:47 +00004877
Jon Mason4a490432010-07-02 09:13:49 +00004878 delta = ((u64) le32_to_cpu(stats->tmac_data_octets_oflow) << 32 |
4879 le32_to_cpu(stats->tmac_data_octets)) - sp->stats.tx_bytes;
4880 sp->stats.tx_bytes += delta;
4881 dev->stats.tx_bytes += delta;
Joe Perchesffb5df62009-08-24 17:29:47 +00004882
Jon Mason4a490432010-07-02 09:13:49 +00004883 delta = le64_to_cpu(stats->rmac_drop_frms) - sp->stats.rx_errors;
4884 sp->stats.rx_errors += delta;
4885 dev->stats.rx_errors += delta;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004886
Jon Mason4a490432010-07-02 09:13:49 +00004887 delta = ((u64) le32_to_cpu(stats->tmac_any_err_frms_oflow) << 32 |
4888 le32_to_cpu(stats->tmac_any_err_frms)) - sp->stats.tx_errors;
4889 sp->stats.tx_errors += delta;
4890 dev->stats.tx_errors += delta;
Joe Perches13d866a2009-08-24 17:29:41 +00004891
Jon Mason4a490432010-07-02 09:13:49 +00004892 delta = le64_to_cpu(stats->rmac_drop_frms) - sp->stats.rx_dropped;
4893 sp->stats.rx_dropped += delta;
4894 dev->stats.rx_dropped += delta;
4895
4896 delta = le64_to_cpu(stats->tmac_drop_frms) - sp->stats.tx_dropped;
4897 sp->stats.tx_dropped += delta;
4898 dev->stats.tx_dropped += delta;
4899
4900 /* The adapter MAC interprets pause frames as multicast packets, but
4901 * does not pass them up. This erroneously increases the multicast
4902 * packet count and needs to be deducted when the multicast frame count
4903 * is queried.
4904 */
4905 delta = (u64) le32_to_cpu(stats->rmac_vld_mcst_frms_oflow) << 32 |
4906 le32_to_cpu(stats->rmac_vld_mcst_frms);
4907 delta -= le64_to_cpu(stats->rmac_pause_ctrl_frms);
4908 delta -= sp->stats.multicast;
4909 sp->stats.multicast += delta;
4910 dev->stats.multicast += delta;
4911
4912 delta = ((u64) le32_to_cpu(stats->rmac_usized_frms_oflow) << 32 |
4913 le32_to_cpu(stats->rmac_usized_frms)) +
4914 le64_to_cpu(stats->rmac_long_frms) - sp->stats.rx_length_errors;
4915 sp->stats.rx_length_errors += delta;
4916 dev->stats.rx_length_errors += delta;
4917
4918 delta = le64_to_cpu(stats->rmac_fcs_err_frms) - sp->stats.rx_crc_errors;
4919 sp->stats.rx_crc_errors += delta;
4920 dev->stats.rx_crc_errors += delta;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04004921
Joe Perchesd44570e2009-08-24 17:29:44 +00004922 return &dev->stats;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004923}
4924
4925/**
4926 * s2io_set_multicast - entry point for multicast address enable/disable.
4927 * @dev : pointer to the device structure
4928 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07004929 * This function is a driver entry point which gets called by the kernel
4930 * whenever multicast addresses must be enabled/disabled. This also gets
Linus Torvalds1da177e2005-04-16 15:20:36 -07004931 * called to set/reset promiscuous mode. Depending on the deivce flag, we
4932 * determine, if multicast address must be enabled or if promiscuous mode
4933 * is to be disabled etc.
4934 * Return value:
4935 * void.
4936 */
4937
4938static void s2io_set_multicast(struct net_device *dev)
4939{
4940 int i, j, prev_cnt;
Jiri Pirko22bedad32010-04-01 21:22:57 +00004941 struct netdev_hw_addr *ha;
Wang Chen4cf16532008-11-12 23:38:14 -08004942 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05004943 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004944 u64 val64 = 0, multi_mac = 0x010203040506ULL, mask =
Joe Perchesd44570e2009-08-24 17:29:44 +00004945 0xfeffffffffffULL;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08004946 u64 dis_addr = S2IO_DISABLE_MAC_ENTRY, mac_addr = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004947 void __iomem *add;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08004948 struct config_param *config = &sp->config;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004949
4950 if ((dev->flags & IFF_ALLMULTI) && (!sp->m_cast_flg)) {
4951 /* Enable all Multicast addresses */
4952 writeq(RMAC_ADDR_DATA0_MEM_ADDR(multi_mac),
4953 &bar0->rmac_addr_data0_mem);
4954 writeq(RMAC_ADDR_DATA1_MEM_MASK(mask),
4955 &bar0->rmac_addr_data1_mem);
4956 val64 = RMAC_ADDR_CMD_MEM_WE |
Joe Perchesd44570e2009-08-24 17:29:44 +00004957 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
4958 RMAC_ADDR_CMD_MEM_OFFSET(config->max_mc_addr - 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004959 writeq(val64, &bar0->rmac_addr_cmd_mem);
4960 /* Wait till command completes */
Ananda Rajuc92ca042006-04-21 19:18:03 -04004961 wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00004962 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
4963 S2IO_BIT_RESET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004964
4965 sp->m_cast_flg = 1;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08004966 sp->all_multi_pos = config->max_mc_addr - 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004967 } else if ((dev->flags & IFF_ALLMULTI) && (sp->m_cast_flg)) {
4968 /* Disable all Multicast addresses */
4969 writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr),
4970 &bar0->rmac_addr_data0_mem);
raghavendra.koushik@neterion.com5e25b9d2005-08-03 12:27:09 -07004971 writeq(RMAC_ADDR_DATA1_MEM_MASK(0x0),
4972 &bar0->rmac_addr_data1_mem);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004973 val64 = RMAC_ADDR_CMD_MEM_WE |
Joe Perchesd44570e2009-08-24 17:29:44 +00004974 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
4975 RMAC_ADDR_CMD_MEM_OFFSET(sp->all_multi_pos);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004976 writeq(val64, &bar0->rmac_addr_cmd_mem);
4977 /* Wait till command completes */
Ananda Rajuc92ca042006-04-21 19:18:03 -04004978 wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00004979 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
4980 S2IO_BIT_RESET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004981
4982 sp->m_cast_flg = 0;
4983 sp->all_multi_pos = 0;
4984 }
4985
4986 if ((dev->flags & IFF_PROMISC) && (!sp->promisc_flg)) {
4987 /* Put the NIC into promiscuous mode */
4988 add = &bar0->mac_cfg;
4989 val64 = readq(&bar0->mac_cfg);
4990 val64 |= MAC_CFG_RMAC_PROM_ENABLE;
4991
4992 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
Joe Perchesd44570e2009-08-24 17:29:44 +00004993 writel((u32)val64, add);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004994 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
4995 writel((u32) (val64 >> 32), (add + 4));
4996
Sivakumar Subramani926930b2007-02-24 01:59:39 -05004997 if (vlan_tag_strip != 1) {
4998 val64 = readq(&bar0->rx_pa_cfg);
4999 val64 &= ~RX_PA_CFG_STRIP_VLAN_TAG;
5000 writeq(val64, &bar0->rx_pa_cfg);
Breno Leitaocd0fce02008-09-04 17:52:54 -03005001 sp->vlan_strip_flag = 0;
Sivakumar Subramani926930b2007-02-24 01:59:39 -05005002 }
5003
Linus Torvalds1da177e2005-04-16 15:20:36 -07005004 val64 = readq(&bar0->mac_cfg);
5005 sp->promisc_flg = 1;
ravinandan.arakali@neterion.com776bd202005-09-06 21:36:56 -07005006 DBG_PRINT(INFO_DBG, "%s: entered promiscuous mode\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07005007 dev->name);
5008 } else if (!(dev->flags & IFF_PROMISC) && (sp->promisc_flg)) {
5009 /* Remove the NIC from promiscuous mode */
5010 add = &bar0->mac_cfg;
5011 val64 = readq(&bar0->mac_cfg);
5012 val64 &= ~MAC_CFG_RMAC_PROM_ENABLE;
5013
5014 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
Joe Perchesd44570e2009-08-24 17:29:44 +00005015 writel((u32)val64, add);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005016 writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
5017 writel((u32) (val64 >> 32), (add + 4));
5018
Sivakumar Subramani926930b2007-02-24 01:59:39 -05005019 if (vlan_tag_strip != 0) {
5020 val64 = readq(&bar0->rx_pa_cfg);
5021 val64 |= RX_PA_CFG_STRIP_VLAN_TAG;
5022 writeq(val64, &bar0->rx_pa_cfg);
Breno Leitaocd0fce02008-09-04 17:52:54 -03005023 sp->vlan_strip_flag = 1;
Sivakumar Subramani926930b2007-02-24 01:59:39 -05005024 }
5025
Linus Torvalds1da177e2005-04-16 15:20:36 -07005026 val64 = readq(&bar0->mac_cfg);
5027 sp->promisc_flg = 0;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005028 DBG_PRINT(INFO_DBG, "%s: left promiscuous mode\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005029 }
5030
5031 /* Update individual M_CAST address list */
Jiri Pirko4cd24ea2010-02-08 04:30:35 +00005032 if ((!sp->m_cast_flg) && netdev_mc_count(dev)) {
5033 if (netdev_mc_count(dev) >
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005034 (config->max_mc_addr - config->max_mac_addr)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00005035 DBG_PRINT(ERR_DBG,
5036 "%s: No more Rx filters can be added - "
5037 "please enable ALL_MULTI instead\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07005038 dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005039 return;
5040 }
5041
5042 prev_cnt = sp->mc_addr_count;
Jiri Pirko4cd24ea2010-02-08 04:30:35 +00005043 sp->mc_addr_count = netdev_mc_count(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005044
5045 /* Clear out the previous list of Mc in the H/W. */
5046 for (i = 0; i < prev_cnt; i++) {
5047 writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr),
5048 &bar0->rmac_addr_data0_mem);
5049 writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL),
Joe Perchesd44570e2009-08-24 17:29:44 +00005050 &bar0->rmac_addr_data1_mem);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005051 val64 = RMAC_ADDR_CMD_MEM_WE |
Joe Perchesd44570e2009-08-24 17:29:44 +00005052 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
5053 RMAC_ADDR_CMD_MEM_OFFSET
5054 (config->mc_start_offset + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005055 writeq(val64, &bar0->rmac_addr_cmd_mem);
5056
5057 /* Wait for command completes */
Ananda Rajuc92ca042006-04-21 19:18:03 -04005058 if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005059 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5060 S2IO_BIT_RESET)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00005061 DBG_PRINT(ERR_DBG,
5062 "%s: Adding Multicasts failed\n",
5063 dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005064 return;
5065 }
5066 }
5067
5068 /* Create the new Rx filter list and update the same in H/W. */
Jiri Pirko55085902010-02-18 00:42:54 +00005069 i = 0;
Jiri Pirko22bedad32010-04-01 21:22:57 +00005070 netdev_for_each_mc_addr(ha, dev) {
Jeff Garzika7a80d52006-03-04 12:06:51 -05005071 mac_addr = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005072 for (j = 0; j < ETH_ALEN; j++) {
Jiri Pirko22bedad32010-04-01 21:22:57 +00005073 mac_addr |= ha->addr[j];
Linus Torvalds1da177e2005-04-16 15:20:36 -07005074 mac_addr <<= 8;
5075 }
5076 mac_addr >>= 8;
5077 writeq(RMAC_ADDR_DATA0_MEM_ADDR(mac_addr),
5078 &bar0->rmac_addr_data0_mem);
5079 writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL),
Joe Perchesd44570e2009-08-24 17:29:44 +00005080 &bar0->rmac_addr_data1_mem);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005081 val64 = RMAC_ADDR_CMD_MEM_WE |
Joe Perchesd44570e2009-08-24 17:29:44 +00005082 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
5083 RMAC_ADDR_CMD_MEM_OFFSET
5084 (i + config->mc_start_offset);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005085 writeq(val64, &bar0->rmac_addr_cmd_mem);
5086
5087 /* Wait for command completes */
Ananda Rajuc92ca042006-04-21 19:18:03 -04005088 if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005089 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5090 S2IO_BIT_RESET)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00005091 DBG_PRINT(ERR_DBG,
5092 "%s: Adding Multicasts failed\n",
5093 dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005094 return;
5095 }
Jiri Pirko55085902010-02-18 00:42:54 +00005096 i++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005097 }
5098 }
5099}
5100
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005101/* read from CAM unicast & multicast addresses and store it in
5102 * def_mac_addr structure
5103 */
Hannes Ederdac499f2008-12-25 23:56:45 -08005104static void do_s2io_store_unicast_mc(struct s2io_nic *sp)
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005105{
5106 int offset;
5107 u64 mac_addr = 0x0;
5108 struct config_param *config = &sp->config;
5109
5110 /* store unicast & multicast mac addresses */
5111 for (offset = 0; offset < config->max_mc_addr; offset++) {
5112 mac_addr = do_s2io_read_unicast_mc(sp, offset);
5113 /* if read fails disable the entry */
5114 if (mac_addr == FAILURE)
5115 mac_addr = S2IO_DISABLE_MAC_ENTRY;
5116 do_s2io_copy_mac_addr(sp, offset, mac_addr);
5117 }
5118}
5119
5120/* restore unicast & multicast MAC to CAM from def_mac_addr structure */
5121static void do_s2io_restore_unicast_mc(struct s2io_nic *sp)
5122{
5123 int offset;
5124 struct config_param *config = &sp->config;
5125 /* restore unicast mac address */
5126 for (offset = 0; offset < config->max_mac_addr; offset++)
5127 do_s2io_prog_unicast(sp->dev,
Joe Perchesd44570e2009-08-24 17:29:44 +00005128 sp->def_mac_addr[offset].mac_addr);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005129
5130 /* restore multicast mac address */
5131 for (offset = config->mc_start_offset;
Joe Perchesd44570e2009-08-24 17:29:44 +00005132 offset < config->max_mc_addr; offset++)
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005133 do_s2io_add_mc(sp, sp->def_mac_addr[offset].mac_addr);
5134}
5135
5136/* add a multicast MAC address to CAM */
5137static int do_s2io_add_mc(struct s2io_nic *sp, u8 *addr)
5138{
5139 int i;
5140 u64 mac_addr = 0;
5141 struct config_param *config = &sp->config;
5142
5143 for (i = 0; i < ETH_ALEN; i++) {
5144 mac_addr <<= 8;
5145 mac_addr |= addr[i];
5146 }
5147 if ((0ULL == mac_addr) || (mac_addr == S2IO_DISABLE_MAC_ENTRY))
5148 return SUCCESS;
5149
5150 /* check if the multicast mac already preset in CAM */
5151 for (i = config->mc_start_offset; i < config->max_mc_addr; i++) {
5152 u64 tmp64;
5153 tmp64 = do_s2io_read_unicast_mc(sp, i);
5154 if (tmp64 == S2IO_DISABLE_MAC_ENTRY) /* CAM entry is empty */
5155 break;
5156
5157 if (tmp64 == mac_addr)
5158 return SUCCESS;
5159 }
5160 if (i == config->max_mc_addr) {
5161 DBG_PRINT(ERR_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00005162 "CAM full no space left for multicast MAC\n");
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005163 return FAILURE;
5164 }
5165 /* Update the internal structure with this new mac address */
5166 do_s2io_copy_mac_addr(sp, i, mac_addr);
5167
Joe Perchesd44570e2009-08-24 17:29:44 +00005168 return do_s2io_add_mac(sp, mac_addr, i);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005169}
5170
5171/* add MAC address to CAM */
5172static int do_s2io_add_mac(struct s2io_nic *sp, u64 addr, int off)
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005173{
5174 u64 val64;
5175 struct XENA_dev_config __iomem *bar0 = sp->bar0;
5176
5177 writeq(RMAC_ADDR_DATA0_MEM_ADDR(addr),
Joe Perchesd44570e2009-08-24 17:29:44 +00005178 &bar0->rmac_addr_data0_mem);
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005179
Joe Perchesd44570e2009-08-24 17:29:44 +00005180 val64 = RMAC_ADDR_CMD_MEM_WE | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005181 RMAC_ADDR_CMD_MEM_OFFSET(off);
5182 writeq(val64, &bar0->rmac_addr_cmd_mem);
5183
5184 /* Wait till command completes */
5185 if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005186 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5187 S2IO_BIT_RESET)) {
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005188 DBG_PRINT(INFO_DBG, "do_s2io_add_mac failed\n");
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005189 return FAILURE;
5190 }
5191 return SUCCESS;
5192}
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005193/* deletes a specified unicast/multicast mac entry from CAM */
5194static int do_s2io_delete_unicast_mc(struct s2io_nic *sp, u64 addr)
5195{
5196 int offset;
5197 u64 dis_addr = S2IO_DISABLE_MAC_ENTRY, tmp64;
5198 struct config_param *config = &sp->config;
5199
5200 for (offset = 1;
Joe Perchesd44570e2009-08-24 17:29:44 +00005201 offset < config->max_mc_addr; offset++) {
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005202 tmp64 = do_s2io_read_unicast_mc(sp, offset);
5203 if (tmp64 == addr) {
5204 /* disable the entry by writing 0xffffffffffffULL */
5205 if (do_s2io_add_mac(sp, dis_addr, offset) == FAILURE)
5206 return FAILURE;
5207 /* store the new mac list from CAM */
5208 do_s2io_store_unicast_mc(sp);
5209 return SUCCESS;
5210 }
5211 }
5212 DBG_PRINT(ERR_DBG, "MAC address 0x%llx not found in CAM\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00005213 (unsigned long long)addr);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005214 return FAILURE;
5215}
5216
5217/* read mac entries from CAM */
5218static u64 do_s2io_read_unicast_mc(struct s2io_nic *sp, int offset)
5219{
5220 u64 tmp64 = 0xffffffffffff0000ULL, val64;
5221 struct XENA_dev_config __iomem *bar0 = sp->bar0;
5222
5223 /* read mac addr */
Joe Perchesd44570e2009-08-24 17:29:44 +00005224 val64 = RMAC_ADDR_CMD_MEM_RD | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005225 RMAC_ADDR_CMD_MEM_OFFSET(offset);
5226 writeq(val64, &bar0->rmac_addr_cmd_mem);
5227
5228 /* Wait till command completes */
5229 if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00005230 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
5231 S2IO_BIT_RESET)) {
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005232 DBG_PRINT(INFO_DBG, "do_s2io_read_unicast_mc failed\n");
5233 return FAILURE;
5234 }
5235 tmp64 = readq(&bar0->rmac_addr_data0_mem);
Joe Perchesd44570e2009-08-24 17:29:44 +00005236
5237 return tmp64 >> 16;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005238}
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005239
Linus Torvalds1da177e2005-04-16 15:20:36 -07005240/**
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005241 * s2io_set_mac_addr driver entry point
5242 */
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005243
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005244static int s2io_set_mac_addr(struct net_device *dev, void *p)
5245{
5246 struct sockaddr *addr = p;
5247
5248 if (!is_valid_ether_addr(addr->sa_data))
Danny Kukawka504f9b52012-02-21 02:07:49 +00005249 return -EADDRNOTAVAIL;
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005250
5251 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
5252
5253 /* store the MAC address in CAM */
Joe Perchesd44570e2009-08-24 17:29:44 +00005254 return do_s2io_prog_unicast(dev, dev->dev_addr);
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005255}
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005256/**
5257 * do_s2io_prog_unicast - Programs the Xframe mac address
Linus Torvalds1da177e2005-04-16 15:20:36 -07005258 * @dev : pointer to the device structure.
5259 * @addr: a uchar pointer to the new mac address which is to be set.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005260 * Description : This procedure will program the Xframe to receive
Linus Torvalds1da177e2005-04-16 15:20:36 -07005261 * frames with new Mac Address
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005262 * Return value: SUCCESS on success and an appropriate (-)ve integer
Linus Torvalds1da177e2005-04-16 15:20:36 -07005263 * as defined in errno.h file on failure.
5264 */
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005265
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005266static int do_s2io_prog_unicast(struct net_device *dev, u8 *addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005267{
Wang Chen4cf16532008-11-12 23:38:14 -08005268 struct s2io_nic *sp = netdev_priv(dev);
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005269 register u64 mac_addr = 0, perm_addr = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005270 int i;
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005271 u64 tmp64;
5272 struct config_param *config = &sp->config;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005273
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005274 /*
Joe Perchesd44570e2009-08-24 17:29:44 +00005275 * Set the new MAC address as the new unicast filter and reflect this
5276 * change on the device address registered with the OS. It will be
5277 * at offset 0.
5278 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07005279 for (i = 0; i < ETH_ALEN; i++) {
5280 mac_addr <<= 8;
5281 mac_addr |= addr[i];
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005282 perm_addr <<= 8;
5283 perm_addr |= sp->def_mac_addr[0].mac_addr[i];
Sivakumar Subramanid8d70ca2007-02-24 02:04:24 -05005284 }
5285
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04005286 /* check if the dev_addr is different than perm_addr */
5287 if (mac_addr == perm_addr)
Sivakumar Subramanid8d70ca2007-02-24 02:04:24 -05005288 return SUCCESS;
5289
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005290 /* check if the mac already preset in CAM */
5291 for (i = 1; i < config->max_mac_addr; i++) {
5292 tmp64 = do_s2io_read_unicast_mc(sp, i);
5293 if (tmp64 == S2IO_DISABLE_MAC_ENTRY) /* CAM entry is empty */
5294 break;
5295
5296 if (tmp64 == mac_addr) {
5297 DBG_PRINT(INFO_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00005298 "MAC addr:0x%llx already present in CAM\n",
5299 (unsigned long long)mac_addr);
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005300 return SUCCESS;
5301 }
5302 }
5303 if (i == config->max_mac_addr) {
5304 DBG_PRINT(ERR_DBG, "CAM full no space left for Unicast MAC\n");
5305 return FAILURE;
5306 }
Sivakumar Subramanid8d70ca2007-02-24 02:04:24 -05005307 /* Update the internal structure with this new mac address */
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08005308 do_s2io_copy_mac_addr(sp, i, mac_addr);
Joe Perchesd44570e2009-08-24 17:29:44 +00005309
5310 return do_s2io_add_mac(sp, mac_addr, i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005311}
5312
5313/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005314 * s2io_ethtool_sset - Sets different link parameters.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005315 * @sp : private member of the device structure, which is a pointer to the * s2io_nic structure.
5316 * @info: pointer to the structure with parameters given by ethtool to set
5317 * link information.
5318 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005319 * The function sets different link parameters provided by the user onto
Linus Torvalds1da177e2005-04-16 15:20:36 -07005320 * the NIC.
5321 * Return value:
5322 * 0 on success.
Joe Perchesd44570e2009-08-24 17:29:44 +00005323 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07005324
5325static int s2io_ethtool_sset(struct net_device *dev,
5326 struct ethtool_cmd *info)
5327{
Wang Chen4cf16532008-11-12 23:38:14 -08005328 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005329 if ((info->autoneg == AUTONEG_ENABLE) ||
David Decotigny25db0332011-04-27 18:32:39 +00005330 (ethtool_cmd_speed(info) != SPEED_10000) ||
Joe Perchesd44570e2009-08-24 17:29:44 +00005331 (info->duplex != DUPLEX_FULL))
Linus Torvalds1da177e2005-04-16 15:20:36 -07005332 return -EINVAL;
5333 else {
5334 s2io_close(sp->dev);
5335 s2io_open(sp->dev);
5336 }
5337
5338 return 0;
5339}
5340
5341/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005342 * s2io_ethtol_gset - Return link specific information.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005343 * @sp : private member of the device structure, pointer to the
5344 * s2io_nic structure.
5345 * @info : pointer to the structure with parameters given by ethtool
5346 * to return link information.
5347 * Description:
5348 * Returns link specific information like speed, duplex etc.. to ethtool.
5349 * Return value :
5350 * return 0 on success.
5351 */
5352
5353static int s2io_ethtool_gset(struct net_device *dev, struct ethtool_cmd *info)
5354{
Wang Chen4cf16532008-11-12 23:38:14 -08005355 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005356 info->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
5357 info->advertising = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
5358 info->port = PORT_FIBRE;
Sivakumar Subramani1a7eb722007-09-14 07:43:16 -04005359
5360 /* info->transceiver */
5361 info->transceiver = XCVR_EXTERNAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005362
5363 if (netif_carrier_ok(sp->dev)) {
David Decotigny70739492011-04-27 18:32:40 +00005364 ethtool_cmd_speed_set(info, SPEED_10000);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005365 info->duplex = DUPLEX_FULL;
5366 } else {
David Decotigny70739492011-04-27 18:32:40 +00005367 ethtool_cmd_speed_set(info, -1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005368 info->duplex = -1;
5369 }
5370
5371 info->autoneg = AUTONEG_DISABLE;
5372 return 0;
5373}
5374
5375/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005376 * s2io_ethtool_gdrvinfo - Returns driver specific information.
5377 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005378 * s2io_nic structure.
5379 * @info : pointer to the structure with parameters given by ethtool to
5380 * return driver information.
5381 * Description:
5382 * Returns driver specefic information like name, version etc.. to ethtool.
5383 * Return value:
5384 * void
5385 */
5386
5387static void s2io_ethtool_gdrvinfo(struct net_device *dev,
5388 struct ethtool_drvinfo *info)
5389{
Wang Chen4cf16532008-11-12 23:38:14 -08005390 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005391
Rick Jones68aad782011-11-07 13:29:27 +00005392 strlcpy(info->driver, s2io_driver_name, sizeof(info->driver));
5393 strlcpy(info->version, s2io_driver_version, sizeof(info->version));
Rick Jones68aad782011-11-07 13:29:27 +00005394 strlcpy(info->bus_info, pci_name(sp->pdev), sizeof(info->bus_info));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005395 info->regdump_len = XENA_REG_SPACE;
5396 info->eedump_len = XENA_EEPROM_SPACE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005397}
5398
5399/**
5400 * s2io_ethtool_gregs - dumps the entire space of Xfame into the buffer.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005401 * @sp: private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005402 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005403 * @regs : pointer to the structure with parameters given by ethtool for
Linus Torvalds1da177e2005-04-16 15:20:36 -07005404 * dumping the registers.
5405 * @reg_space: The input argumnet into which all the registers are dumped.
5406 * Description:
5407 * Dumps the entire register space of xFrame NIC into the user given
5408 * buffer area.
5409 * Return value :
5410 * void .
Joe Perchesd44570e2009-08-24 17:29:44 +00005411 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07005412
5413static void s2io_ethtool_gregs(struct net_device *dev,
5414 struct ethtool_regs *regs, void *space)
5415{
5416 int i;
5417 u64 reg;
Joe Perchesd44570e2009-08-24 17:29:44 +00005418 u8 *reg_space = (u8 *)space;
Wang Chen4cf16532008-11-12 23:38:14 -08005419 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005420
5421 regs->len = XENA_REG_SPACE;
5422 regs->version = sp->pdev->subsystem_device;
5423
5424 for (i = 0; i < regs->len; i += 8) {
5425 reg = readq(sp->bar0 + i);
5426 memcpy((reg_space + i), &reg, 8);
5427 }
5428}
5429
stephen hemminger034e3452011-04-04 15:09:25 +00005430/*
5431 * s2io_set_led - control NIC led
Joe Perchesd44570e2009-08-24 17:29:44 +00005432 */
stephen hemminger034e3452011-04-04 15:09:25 +00005433static void s2io_set_led(struct s2io_nic *sp, bool on)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005434{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005435 struct XENA_dev_config __iomem *bar0 = sp->bar0;
stephen hemminger034e3452011-04-04 15:09:25 +00005436 u16 subid = sp->pdev->subsystem_device;
5437 u64 val64;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005438
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07005439 if ((sp->device_type == XFRAME_II_DEVICE) ||
Joe Perchesd44570e2009-08-24 17:29:44 +00005440 ((subid & 0xFF) >= 0x07)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005441 val64 = readq(&bar0->gpio_control);
stephen hemminger034e3452011-04-04 15:09:25 +00005442 if (on)
5443 val64 |= GPIO_CTRL_GPIO_0;
5444 else
5445 val64 &= ~GPIO_CTRL_GPIO_0;
5446
Linus Torvalds1da177e2005-04-16 15:20:36 -07005447 writeq(val64, &bar0->gpio_control);
5448 } else {
5449 val64 = readq(&bar0->adapter_control);
stephen hemminger034e3452011-04-04 15:09:25 +00005450 if (on)
5451 val64 |= ADAPTER_LED_ON;
5452 else
5453 val64 &= ~ADAPTER_LED_ON;
5454
Linus Torvalds1da177e2005-04-16 15:20:36 -07005455 writeq(val64, &bar0->adapter_control);
5456 }
5457
Linus Torvalds1da177e2005-04-16 15:20:36 -07005458}
5459
5460/**
stephen hemminger034e3452011-04-04 15:09:25 +00005461 * s2io_ethtool_set_led - To physically identify the nic on the system.
5462 * @dev : network device
5463 * @state: led setting
5464 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07005465 * Description: Used to physically identify the NIC on the system.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005466 * The Link LED will blink for a time specified by the user for
Linus Torvalds1da177e2005-04-16 15:20:36 -07005467 * identification.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005468 * NOTE: The Link has to be Up to be able to blink the LED. Hence
Linus Torvalds1da177e2005-04-16 15:20:36 -07005469 * identification is possible only if it's link is up.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005470 */
5471
stephen hemminger034e3452011-04-04 15:09:25 +00005472static int s2io_ethtool_set_led(struct net_device *dev,
5473 enum ethtool_phys_id_state state)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005474{
Wang Chen4cf16532008-11-12 23:38:14 -08005475 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005476 struct XENA_dev_config __iomem *bar0 = sp->bar0;
stephen hemminger034e3452011-04-04 15:09:25 +00005477 u16 subid = sp->pdev->subsystem_device;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005478
Joe Perchesd44570e2009-08-24 17:29:44 +00005479 if ((sp->device_type == XFRAME_I_DEVICE) && ((subid & 0xFF) < 0x07)) {
stephen hemminger034e3452011-04-04 15:09:25 +00005480 u64 val64 = readq(&bar0->adapter_control);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005481 if (!(val64 & ADAPTER_CNTL_EN)) {
Joe Perches6cef2b8e2009-08-24 17:29:45 +00005482 pr_err("Adapter Link down, cannot blink LED\n");
stephen hemminger034e3452011-04-04 15:09:25 +00005483 return -EAGAIN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005484 }
5485 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005486
stephen hemminger034e3452011-04-04 15:09:25 +00005487 switch (state) {
5488 case ETHTOOL_ID_ACTIVE:
5489 sp->adapt_ctrl_org = readq(&bar0->gpio_control);
Allan, Bruce Wfce55922011-04-13 13:09:10 +00005490 return 1; /* cycle on/off once per second */
stephen hemminger034e3452011-04-04 15:09:25 +00005491
5492 case ETHTOOL_ID_ON:
5493 s2io_set_led(sp, true);
5494 break;
5495
5496 case ETHTOOL_ID_OFF:
5497 s2io_set_led(sp, false);
5498 break;
5499
5500 case ETHTOOL_ID_INACTIVE:
5501 if (CARDS_WITH_FAULTY_LINK_INDICATORS(sp->device_type, subid))
5502 writeq(sp->adapt_ctrl_org, &bar0->gpio_control);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005503 }
5504
5505 return 0;
5506}
5507
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005508static void s2io_ethtool_gringparam(struct net_device *dev,
Joe Perchesd44570e2009-08-24 17:29:44 +00005509 struct ethtool_ringparam *ering)
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005510{
Wang Chen4cf16532008-11-12 23:38:14 -08005511 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesd44570e2009-08-24 17:29:44 +00005512 int i, tx_desc_count = 0, rx_desc_count = 0;
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005513
Jon Mason1853e2e2010-12-10 15:40:01 +00005514 if (sp->rxd_mode == RXD_MODE_1) {
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005515 ering->rx_max_pending = MAX_RX_DESC_1;
Jon Mason1853e2e2010-12-10 15:40:01 +00005516 ering->rx_jumbo_max_pending = MAX_RX_DESC_1;
5517 } else {
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005518 ering->rx_max_pending = MAX_RX_DESC_2;
Jon Mason1853e2e2010-12-10 15:40:01 +00005519 ering->rx_jumbo_max_pending = MAX_RX_DESC_2;
5520 }
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005521
Jon Mason1853e2e2010-12-10 15:40:01 +00005522 ering->tx_max_pending = MAX_TX_DESC;
5523
5524 for (i = 0; i < sp->config.rx_ring_num; i++)
5525 rx_desc_count += sp->config.rx_cfg[i].num_rxd;
5526 ering->rx_pending = rx_desc_count;
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005527 ering->rx_jumbo_pending = rx_desc_count;
Jon Mason1853e2e2010-12-10 15:40:01 +00005528
5529 for (i = 0; i < sp->config.tx_fifo_num; i++)
5530 tx_desc_count += sp->config.tx_cfg[i].fifo_len;
5531 ering->tx_pending = tx_desc_count;
5532 DBG_PRINT(INFO_DBG, "max txds: %d\n", sp->config.max_txds);
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04005533}
5534
Linus Torvalds1da177e2005-04-16 15:20:36 -07005535/**
5536 * s2io_ethtool_getpause_data -Pause frame frame generation and reception.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005537 * @sp : private member of the device structure, which is a pointer to the
5538 * s2io_nic structure.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005539 * @ep : pointer to the structure with pause parameters given by ethtool.
5540 * Description:
5541 * Returns the Pause frame generation and reception capability of the NIC.
5542 * Return value:
5543 * void
5544 */
5545static void s2io_ethtool_getpause_data(struct net_device *dev,
5546 struct ethtool_pauseparam *ep)
5547{
5548 u64 val64;
Wang Chen4cf16532008-11-12 23:38:14 -08005549 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005550 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005551
5552 val64 = readq(&bar0->rmac_pause_cfg);
5553 if (val64 & RMAC_PAUSE_GEN_ENABLE)
Tobias Klauserf957bcf2009-06-04 23:07:59 +00005554 ep->tx_pause = true;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005555 if (val64 & RMAC_PAUSE_RX_ENABLE)
Tobias Klauserf957bcf2009-06-04 23:07:59 +00005556 ep->rx_pause = true;
5557 ep->autoneg = false;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005558}
5559
5560/**
5561 * s2io_ethtool_setpause_data - set/reset pause frame generation.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005562 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005563 * s2io_nic structure.
5564 * @ep : pointer to the structure with pause parameters given by ethtool.
5565 * Description:
5566 * It can be used to set or reset Pause frame generation or reception
5567 * support of the NIC.
5568 * Return value:
5569 * int, returns 0 on Success
5570 */
5571
5572static int s2io_ethtool_setpause_data(struct net_device *dev,
Joe Perchesd44570e2009-08-24 17:29:44 +00005573 struct ethtool_pauseparam *ep)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005574{
5575 u64 val64;
Wang Chen4cf16532008-11-12 23:38:14 -08005576 struct s2io_nic *sp = netdev_priv(dev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005577 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005578
5579 val64 = readq(&bar0->rmac_pause_cfg);
5580 if (ep->tx_pause)
5581 val64 |= RMAC_PAUSE_GEN_ENABLE;
5582 else
5583 val64 &= ~RMAC_PAUSE_GEN_ENABLE;
5584 if (ep->rx_pause)
5585 val64 |= RMAC_PAUSE_RX_ENABLE;
5586 else
5587 val64 &= ~RMAC_PAUSE_RX_ENABLE;
5588 writeq(val64, &bar0->rmac_pause_cfg);
5589 return 0;
5590}
5591
5592/**
5593 * read_eeprom - reads 4 bytes of data from user given offset.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005594 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005595 * s2io_nic structure.
5596 * @off : offset at which the data must be written
5597 * @data : Its an output parameter where the data read at the given
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005598 * offset is stored.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005599 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005600 * Will read 4 bytes of data from the user given offset and return the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005601 * read data.
5602 * NOTE: Will allow to read only part of the EEPROM visible through the
5603 * I2C bus.
5604 * Return value:
5605 * -1 on failure and 0 on success.
5606 */
5607
5608#define S2IO_DEV_ID 5
Joe Perchesd44570e2009-08-24 17:29:44 +00005609static int read_eeprom(struct s2io_nic *sp, int off, u64 *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005610{
5611 int ret = -1;
5612 u32 exit_cnt = 0;
5613 u64 val64;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005614 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005615
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005616 if (sp->device_type == XFRAME_I_DEVICE) {
Joe Perchesd44570e2009-08-24 17:29:44 +00005617 val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) |
5618 I2C_CONTROL_ADDR(off) |
5619 I2C_CONTROL_BYTE_CNT(0x3) |
5620 I2C_CONTROL_READ |
5621 I2C_CONTROL_CNTL_START;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005622 SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005623
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005624 while (exit_cnt < 5) {
5625 val64 = readq(&bar0->i2c_control);
5626 if (I2C_CONTROL_CNTL_END(val64)) {
5627 *data = I2C_CONTROL_GET_DATA(val64);
5628 ret = 0;
5629 break;
5630 }
5631 msleep(50);
5632 exit_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005633 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005634 }
5635
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005636 if (sp->device_type == XFRAME_II_DEVICE) {
5637 val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 |
Jeff Garzik6aa20a22006-09-13 13:24:59 -04005638 SPI_CONTROL_BYTECNT(0x3) |
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005639 SPI_CONTROL_CMD(0x3) | SPI_CONTROL_ADDR(off);
5640 SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
5641 val64 |= SPI_CONTROL_REQ;
5642 SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
5643 while (exit_cnt < 5) {
5644 val64 = readq(&bar0->spi_control);
5645 if (val64 & SPI_CONTROL_NACK) {
5646 ret = 1;
5647 break;
5648 } else if (val64 & SPI_CONTROL_DONE) {
5649 *data = readq(&bar0->spi_data);
5650 *data &= 0xffffff;
5651 ret = 0;
5652 break;
5653 }
5654 msleep(50);
5655 exit_cnt++;
5656 }
5657 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005658 return ret;
5659}
5660
5661/**
5662 * write_eeprom - actually writes the relevant part of the data value.
5663 * @sp : private member of the device structure, which is a pointer to the
5664 * s2io_nic structure.
5665 * @off : offset at which the data must be written
5666 * @data : The data that is to be written
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005667 * @cnt : Number of bytes of the data that are actually to be written into
Linus Torvalds1da177e2005-04-16 15:20:36 -07005668 * the Eeprom. (max of 3)
5669 * Description:
5670 * Actually writes the relevant part of the data value into the Eeprom
5671 * through the I2C bus.
5672 * Return value:
5673 * 0 on success, -1 on failure.
5674 */
5675
Joe Perchesd44570e2009-08-24 17:29:44 +00005676static int write_eeprom(struct s2io_nic *sp, int off, u64 data, int cnt)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005677{
5678 int exit_cnt = 0, ret = -1;
5679 u64 val64;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005680 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005681
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005682 if (sp->device_type == XFRAME_I_DEVICE) {
Joe Perchesd44570e2009-08-24 17:29:44 +00005683 val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) |
5684 I2C_CONTROL_ADDR(off) |
5685 I2C_CONTROL_BYTE_CNT(cnt) |
5686 I2C_CONTROL_SET_DATA((u32)data) |
5687 I2C_CONTROL_CNTL_START;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005688 SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005689
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005690 while (exit_cnt < 5) {
5691 val64 = readq(&bar0->i2c_control);
5692 if (I2C_CONTROL_CNTL_END(val64)) {
5693 if (!(val64 & I2C_CONTROL_NACK))
5694 ret = 0;
5695 break;
5696 }
5697 msleep(50);
5698 exit_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005699 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005700 }
5701
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005702 if (sp->device_type == XFRAME_II_DEVICE) {
5703 int write_cnt = (cnt == 8) ? 0 : cnt;
Joe Perchesd44570e2009-08-24 17:29:44 +00005704 writeq(SPI_DATA_WRITE(data, (cnt << 3)), &bar0->spi_data);
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005705
5706 val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 |
Jeff Garzik6aa20a22006-09-13 13:24:59 -04005707 SPI_CONTROL_BYTECNT(write_cnt) |
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005708 SPI_CONTROL_CMD(0x2) | SPI_CONTROL_ADDR(off);
5709 SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
5710 val64 |= SPI_CONTROL_REQ;
5711 SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
5712 while (exit_cnt < 5) {
5713 val64 = readq(&bar0->spi_control);
5714 if (val64 & SPI_CONTROL_NACK) {
5715 ret = 1;
5716 break;
5717 } else if (val64 & SPI_CONTROL_DONE) {
5718 ret = 0;
5719 break;
5720 }
5721 msleep(50);
5722 exit_cnt++;
5723 }
5724 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005725 return ret;
5726}
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005727static void s2io_vpd_read(struct s2io_nic *nic)
Ananda Raju9dc737a2006-04-21 19:05:41 -04005728{
Ananda Rajub41477f2006-07-24 19:52:49 -04005729 u8 *vpd_data;
5730 u8 data;
Kulikov Vasiliy9c179782010-07-23 06:36:15 +00005731 int i = 0, cnt, len, fail = 0;
Ananda Raju9dc737a2006-04-21 19:05:41 -04005732 int vpd_addr = 0x80;
Joe Perchesffb5df62009-08-24 17:29:47 +00005733 struct swStat *swstats = &nic->mac_control.stats_info->sw_stat;
Ananda Raju9dc737a2006-04-21 19:05:41 -04005734
5735 if (nic->device_type == XFRAME_II_DEVICE) {
5736 strcpy(nic->product_name, "Xframe II 10GbE network adapter");
5737 vpd_addr = 0x80;
Joe Perchesd44570e2009-08-24 17:29:44 +00005738 } else {
Ananda Raju9dc737a2006-04-21 19:05:41 -04005739 strcpy(nic->product_name, "Xframe I 10GbE network adapter");
5740 vpd_addr = 0x50;
5741 }
Sivakumar Subramani19a60522007-01-31 13:30:49 -05005742 strcpy(nic->serial_num, "NOT AVAILABLE");
Ananda Raju9dc737a2006-04-21 19:05:41 -04005743
Ananda Rajub41477f2006-07-24 19:52:49 -04005744 vpd_data = kmalloc(256, GFP_KERNEL);
Sreenivasa Honnurc53d4942007-05-10 04:18:54 -04005745 if (!vpd_data) {
Joe Perchesffb5df62009-08-24 17:29:47 +00005746 swstats->mem_alloc_fail_cnt++;
Ananda Rajub41477f2006-07-24 19:52:49 -04005747 return;
Sreenivasa Honnurc53d4942007-05-10 04:18:54 -04005748 }
Joe Perchesffb5df62009-08-24 17:29:47 +00005749 swstats->mem_allocated += 256;
Ananda Rajub41477f2006-07-24 19:52:49 -04005750
Joe Perchesd44570e2009-08-24 17:29:44 +00005751 for (i = 0; i < 256; i += 4) {
Ananda Raju9dc737a2006-04-21 19:05:41 -04005752 pci_write_config_byte(nic->pdev, (vpd_addr + 2), i);
5753 pci_read_config_byte(nic->pdev, (vpd_addr + 2), &data);
5754 pci_write_config_byte(nic->pdev, (vpd_addr + 3), 0);
Joe Perchesd44570e2009-08-24 17:29:44 +00005755 for (cnt = 0; cnt < 5; cnt++) {
Ananda Raju9dc737a2006-04-21 19:05:41 -04005756 msleep(2);
5757 pci_read_config_byte(nic->pdev, (vpd_addr + 3), &data);
5758 if (data == 0x80)
5759 break;
5760 }
5761 if (cnt >= 5) {
5762 DBG_PRINT(ERR_DBG, "Read of VPD data failed\n");
5763 fail = 1;
5764 break;
5765 }
5766 pci_read_config_dword(nic->pdev, (vpd_addr + 4),
5767 (u32 *)&vpd_data[i]);
5768 }
Sivakumar Subramani19a60522007-01-31 13:30:49 -05005769
Joe Perchesd44570e2009-08-24 17:29:44 +00005770 if (!fail) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05005771 /* read serial number of adapter */
Kulikov Vasiliy9c179782010-07-23 06:36:15 +00005772 for (cnt = 0; cnt < 252; cnt++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00005773 if ((vpd_data[cnt] == 'S') &&
Kulikov Vasiliy9c179782010-07-23 06:36:15 +00005774 (vpd_data[cnt+1] == 'N')) {
5775 len = vpd_data[cnt+2];
5776 if (len < min(VPD_STRING_LEN, 256-cnt-2)) {
5777 memcpy(nic->serial_num,
5778 &vpd_data[cnt + 3],
5779 len);
5780 memset(nic->serial_num+len,
5781 0,
5782 VPD_STRING_LEN-len);
5783 break;
5784 }
Sivakumar Subramani19a60522007-01-31 13:30:49 -05005785 }
5786 }
5787 }
5788
Kulikov Vasiliy9c179782010-07-23 06:36:15 +00005789 if ((!fail) && (vpd_data[1] < VPD_STRING_LEN)) {
5790 len = vpd_data[1];
5791 memcpy(nic->product_name, &vpd_data[3], len);
5792 nic->product_name[len] = 0;
5793 }
Ananda Rajub41477f2006-07-24 19:52:49 -04005794 kfree(vpd_data);
Joe Perchesffb5df62009-08-24 17:29:47 +00005795 swstats->mem_freed += 256;
Ananda Raju9dc737a2006-04-21 19:05:41 -04005796}
5797
Linus Torvalds1da177e2005-04-16 15:20:36 -07005798/**
5799 * s2io_ethtool_geeprom - reads the value stored in the Eeprom.
5800 * @sp : private member of the device structure, which is a pointer to the * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005801 * @eeprom : pointer to the user level structure provided by ethtool,
Linus Torvalds1da177e2005-04-16 15:20:36 -07005802 * containing all relevant information.
5803 * @data_buf : user defined value to be written into Eeprom.
5804 * Description: Reads the values stored in the Eeprom at given offset
5805 * for a given length. Stores these values int the input argument data
5806 * buffer 'data_buf' and returns these to the caller (ethtool.)
5807 * Return value:
5808 * int 0 on success
5809 */
5810
5811static int s2io_ethtool_geeprom(struct net_device *dev,
Joe Perchesd44570e2009-08-24 17:29:44 +00005812 struct ethtool_eeprom *eeprom, u8 * data_buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005813{
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005814 u32 i, valid;
5815 u64 data;
Wang Chen4cf16532008-11-12 23:38:14 -08005816 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005817
5818 eeprom->magic = sp->pdev->vendor | (sp->pdev->device << 16);
5819
5820 if ((eeprom->offset + eeprom->len) > (XENA_EEPROM_SPACE))
5821 eeprom->len = XENA_EEPROM_SPACE - eeprom->offset;
5822
5823 for (i = 0; i < eeprom->len; i += 4) {
5824 if (read_eeprom(sp, (eeprom->offset + i), &data)) {
5825 DBG_PRINT(ERR_DBG, "Read of EEPROM failed\n");
5826 return -EFAULT;
5827 }
5828 valid = INV(data);
5829 memcpy((data_buf + i), &valid, 4);
5830 }
5831 return 0;
5832}
5833
5834/**
5835 * s2io_ethtool_seeprom - tries to write the user provided value in Eeprom
5836 * @sp : private member of the device structure, which is a pointer to the
5837 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005838 * @eeprom : pointer to the user level structure provided by ethtool,
Linus Torvalds1da177e2005-04-16 15:20:36 -07005839 * containing all relevant information.
5840 * @data_buf ; user defined value to be written into Eeprom.
5841 * Description:
5842 * Tries to write the user provided value in the Eeprom, at the offset
5843 * given by the user.
5844 * Return value:
5845 * 0 on success, -EFAULT on failure.
5846 */
5847
5848static int s2io_ethtool_seeprom(struct net_device *dev,
5849 struct ethtool_eeprom *eeprom,
Joe Perchesd44570e2009-08-24 17:29:44 +00005850 u8 *data_buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005851{
5852 int len = eeprom->len, cnt = 0;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005853 u64 valid = 0, data;
Wang Chen4cf16532008-11-12 23:38:14 -08005854 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005855
5856 if (eeprom->magic != (sp->pdev->vendor | (sp->pdev->device << 16))) {
5857 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00005858 "ETHTOOL_WRITE_EEPROM Err: "
5859 "Magic value is wrong, it is 0x%x should be 0x%x\n",
5860 (sp->pdev->vendor | (sp->pdev->device << 16)),
5861 eeprom->magic);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005862 return -EFAULT;
5863 }
5864
5865 while (len) {
Joe Perchesd44570e2009-08-24 17:29:44 +00005866 data = (u32)data_buf[cnt] & 0x000000FF;
5867 if (data)
5868 valid = (u32)(data << 24);
5869 else
Linus Torvalds1da177e2005-04-16 15:20:36 -07005870 valid = data;
5871
5872 if (write_eeprom(sp, (eeprom->offset + cnt), valid, 0)) {
5873 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00005874 "ETHTOOL_WRITE_EEPROM Err: "
5875 "Cannot write into the specified offset\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07005876 return -EFAULT;
5877 }
5878 cnt++;
5879 len--;
5880 }
5881
5882 return 0;
5883}
5884
5885/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005886 * s2io_register_test - reads and writes into all clock domains.
5887 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07005888 * s2io_nic structure.
5889 * @data : variable that returns the result of each of the test conducted b
5890 * by the driver.
5891 * Description:
5892 * Read and write into all clock domains. The NIC has 3 clock domains,
5893 * see that registers in all the three regions are accessible.
5894 * Return value:
5895 * 0 on success.
5896 */
5897
Joe Perchesd44570e2009-08-24 17:29:44 +00005898static int s2io_register_test(struct s2io_nic *sp, uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005899{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05005900 struct XENA_dev_config __iomem *bar0 = sp->bar0;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005901 u64 val64 = 0, exp_val;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005902 int fail = 0;
5903
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005904 val64 = readq(&bar0->pif_rd_swapper_fb);
5905 if (val64 != 0x123456789abcdefULL) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005906 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005907 DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005908 }
5909
5910 val64 = readq(&bar0->rmac_pause_cfg);
5911 if (val64 != 0xc000ffff00000000ULL) {
5912 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005913 DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005914 }
5915
5916 val64 = readq(&bar0->rx_queue_cfg);
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005917 if (sp->device_type == XFRAME_II_DEVICE)
5918 exp_val = 0x0404040404040404ULL;
5919 else
5920 exp_val = 0x0808080808080808ULL;
5921 if (val64 != exp_val) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005922 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005923 DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005924 }
5925
5926 val64 = readq(&bar0->xgxs_efifo_cfg);
5927 if (val64 != 0x000000001923141EULL) {
5928 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005929 DBG_PRINT(INFO_DBG, "Read Test level %d fails\n", 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005930 }
5931
5932 val64 = 0x5A5A5A5A5A5A5A5AULL;
5933 writeq(val64, &bar0->xmsi_data);
5934 val64 = readq(&bar0->xmsi_data);
5935 if (val64 != 0x5A5A5A5A5A5A5A5AULL) {
5936 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005937 DBG_PRINT(ERR_DBG, "Write Test level %d fails\n", 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005938 }
5939
5940 val64 = 0xA5A5A5A5A5A5A5A5ULL;
5941 writeq(val64, &bar0->xmsi_data);
5942 val64 = readq(&bar0->xmsi_data);
5943 if (val64 != 0xA5A5A5A5A5A5A5A5ULL) {
5944 fail = 1;
Joe Perches9e39f7c2009-08-25 08:52:00 +00005945 DBG_PRINT(ERR_DBG, "Write Test level %d fails\n", 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005946 }
5947
5948 *data = fail;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005949 return fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005950}
5951
5952/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005953 * s2io_eeprom_test - to verify that EEprom in the xena can be programmed.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005954 * @sp : private member of the device structure, which is a pointer to the
5955 * s2io_nic structure.
5956 * @data:variable that returns the result of each of the test conducted by
5957 * the driver.
5958 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07005959 * Verify that EEPROM in the xena can be programmed using I2C_CONTROL
Linus Torvalds1da177e2005-04-16 15:20:36 -07005960 * register.
5961 * Return value:
5962 * 0 on success.
5963 */
5964
Joe Perchesd44570e2009-08-24 17:29:44 +00005965static int s2io_eeprom_test(struct s2io_nic *sp, uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005966{
5967 int fail = 0;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005968 u64 ret_data, org_4F0, org_7F0;
5969 u8 saved_4F0 = 0, saved_7F0 = 0;
5970 struct net_device *dev = sp->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005971
5972 /* Test Write Error at offset 0 */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005973 /* Note that SPI interface allows write access to all areas
5974 * of EEPROM. Hence doing all negative testing only for Xframe I.
5975 */
5976 if (sp->device_type == XFRAME_I_DEVICE)
5977 if (!write_eeprom(sp, 0, 0, 3))
5978 fail = 1;
5979
5980 /* Save current values at offsets 0x4F0 and 0x7F0 */
5981 if (!read_eeprom(sp, 0x4F0, &org_4F0))
5982 saved_4F0 = 1;
5983 if (!read_eeprom(sp, 0x7F0, &org_7F0))
5984 saved_7F0 = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005985
5986 /* Test Write at offset 4f0 */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005987 if (write_eeprom(sp, 0x4F0, 0x012345, 3))
Linus Torvalds1da177e2005-04-16 15:20:36 -07005988 fail = 1;
5989 if (read_eeprom(sp, 0x4F0, &ret_data))
5990 fail = 1;
5991
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005992 if (ret_data != 0x012345) {
Andrew Morton26b76252005-12-14 19:25:23 -08005993 DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x4F0. "
Joe Perchesd44570e2009-08-24 17:29:44 +00005994 "Data written %llx Data read %llx\n",
5995 dev->name, (unsigned long long)0x12345,
5996 (unsigned long long)ret_data);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005997 fail = 1;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07005998 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005999
6000 /* Reset the EEPROM data go FFFF */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006001 write_eeprom(sp, 0x4F0, 0xFFFFFF, 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006002
6003 /* Test Write Request Error at offset 0x7c */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006004 if (sp->device_type == XFRAME_I_DEVICE)
6005 if (!write_eeprom(sp, 0x07C, 0, 3))
6006 fail = 1;
6007
6008 /* Test Write Request at offset 0x7f0 */
6009 if (write_eeprom(sp, 0x7F0, 0x012345, 3))
6010 fail = 1;
6011 if (read_eeprom(sp, 0x7F0, &ret_data))
Linus Torvalds1da177e2005-04-16 15:20:36 -07006012 fail = 1;
6013
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006014 if (ret_data != 0x012345) {
Andrew Morton26b76252005-12-14 19:25:23 -08006015 DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x7F0. "
Joe Perchesd44570e2009-08-24 17:29:44 +00006016 "Data written %llx Data read %llx\n",
6017 dev->name, (unsigned long long)0x12345,
6018 (unsigned long long)ret_data);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006019 fail = 1;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006020 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006021
6022 /* Reset the EEPROM data go FFFF */
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006023 write_eeprom(sp, 0x7F0, 0xFFFFFF, 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006024
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006025 if (sp->device_type == XFRAME_I_DEVICE) {
6026 /* Test Write Error at offset 0x80 */
6027 if (!write_eeprom(sp, 0x080, 0, 3))
6028 fail = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006029
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006030 /* Test Write Error at offset 0xfc */
6031 if (!write_eeprom(sp, 0x0FC, 0, 3))
6032 fail = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006033
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006034 /* Test Write Error at offset 0x100 */
6035 if (!write_eeprom(sp, 0x100, 0, 3))
6036 fail = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006037
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006038 /* Test Write Error at offset 4ec */
6039 if (!write_eeprom(sp, 0x4EC, 0, 3))
6040 fail = 1;
6041 }
6042
6043 /* Restore values at offsets 0x4F0 and 0x7F0 */
6044 if (saved_4F0)
6045 write_eeprom(sp, 0x4F0, org_4F0, 3);
6046 if (saved_7F0)
6047 write_eeprom(sp, 0x7F0, org_7F0, 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006048
6049 *data = fail;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006050 return fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006051}
6052
6053/**
6054 * s2io_bist_test - invokes the MemBist test of the card .
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006055 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07006056 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006057 * @data:variable that returns the result of each of the test conducted by
Linus Torvalds1da177e2005-04-16 15:20:36 -07006058 * the driver.
6059 * Description:
6060 * This invokes the MemBist test of the card. We give around
6061 * 2 secs time for the Test to complete. If it's still not complete
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006062 * within this peiod, we consider that the test failed.
Linus Torvalds1da177e2005-04-16 15:20:36 -07006063 * Return value:
6064 * 0 on success and -1 on failure.
6065 */
6066
Joe Perchesd44570e2009-08-24 17:29:44 +00006067static int s2io_bist_test(struct s2io_nic *sp, uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006068{
6069 u8 bist = 0;
6070 int cnt = 0, ret = -1;
6071
6072 pci_read_config_byte(sp->pdev, PCI_BIST, &bist);
6073 bist |= PCI_BIST_START;
6074 pci_write_config_word(sp->pdev, PCI_BIST, bist);
6075
6076 while (cnt < 20) {
6077 pci_read_config_byte(sp->pdev, PCI_BIST, &bist);
6078 if (!(bist & PCI_BIST_START)) {
6079 *data = (bist & PCI_BIST_CODE_MASK);
6080 ret = 0;
6081 break;
6082 }
6083 msleep(100);
6084 cnt++;
6085 }
6086
6087 return ret;
6088}
6089
6090/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006091 * s2io-link_test - verifies the link state of the nic
6092 * @sp ; private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07006093 * s2io_nic structure.
6094 * @data: variable that returns the result of each of the test conducted by
6095 * the driver.
6096 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006097 * The function verifies the link state of the NIC and updates the input
Linus Torvalds1da177e2005-04-16 15:20:36 -07006098 * argument 'data' appropriately.
6099 * Return value:
6100 * 0 on success.
6101 */
6102
Joe Perchesd44570e2009-08-24 17:29:44 +00006103static int s2io_link_test(struct s2io_nic *sp, uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006104{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006105 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006106 u64 val64;
6107
6108 val64 = readq(&bar0->adapter_status);
Joe Perchesd44570e2009-08-24 17:29:44 +00006109 if (!(LINK_IS_UP(val64)))
Linus Torvalds1da177e2005-04-16 15:20:36 -07006110 *data = 1;
Ananda Rajuc92ca042006-04-21 19:18:03 -04006111 else
6112 *data = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006113
Ananda Rajub41477f2006-07-24 19:52:49 -04006114 return *data;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006115}
6116
6117/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006118 * s2io_rldram_test - offline test for access to the RldRam chip on the NIC
6119 * @sp - private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07006120 * s2io_nic structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006121 * @data - variable that returns the result of each of the test
Linus Torvalds1da177e2005-04-16 15:20:36 -07006122 * conducted by the driver.
6123 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006124 * This is one of the offline test that tests the read and write
Linus Torvalds1da177e2005-04-16 15:20:36 -07006125 * access to the RldRam chip on the NIC.
6126 * Return value:
6127 * 0 on success.
6128 */
6129
Joe Perchesd44570e2009-08-24 17:29:44 +00006130static int s2io_rldram_test(struct s2io_nic *sp, uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006131{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006132 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006133 u64 val64;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006134 int cnt, iteration = 0, test_fail = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006135
6136 val64 = readq(&bar0->adapter_control);
6137 val64 &= ~ADAPTER_ECC_EN;
6138 writeq(val64, &bar0->adapter_control);
6139
6140 val64 = readq(&bar0->mc_rldram_test_ctrl);
6141 val64 |= MC_RLDRAM_TEST_MODE;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006142 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006143
6144 val64 = readq(&bar0->mc_rldram_mrs);
6145 val64 |= MC_RLDRAM_QUEUE_SIZE_ENABLE;
6146 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF);
6147
6148 val64 |= MC_RLDRAM_MRS_ENABLE;
6149 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_mrs, UF);
6150
6151 while (iteration < 2) {
6152 val64 = 0x55555555aaaa0000ULL;
Joe Perchesd44570e2009-08-24 17:29:44 +00006153 if (iteration == 1)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006154 val64 ^= 0xFFFFFFFFFFFF0000ULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006155 writeq(val64, &bar0->mc_rldram_test_d0);
6156
6157 val64 = 0xaaaa5a5555550000ULL;
Joe Perchesd44570e2009-08-24 17:29:44 +00006158 if (iteration == 1)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006159 val64 ^= 0xFFFFFFFFFFFF0000ULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006160 writeq(val64, &bar0->mc_rldram_test_d1);
6161
6162 val64 = 0x55aaaaaaaa5a0000ULL;
Joe Perchesd44570e2009-08-24 17:29:44 +00006163 if (iteration == 1)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006164 val64 ^= 0xFFFFFFFFFFFF0000ULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006165 writeq(val64, &bar0->mc_rldram_test_d2);
6166
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006167 val64 = (u64) (0x0000003ffffe0100ULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006168 writeq(val64, &bar0->mc_rldram_test_add);
6169
Joe Perchesd44570e2009-08-24 17:29:44 +00006170 val64 = MC_RLDRAM_TEST_MODE |
6171 MC_RLDRAM_TEST_WRITE |
6172 MC_RLDRAM_TEST_GO;
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006173 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006174
6175 for (cnt = 0; cnt < 5; cnt++) {
6176 val64 = readq(&bar0->mc_rldram_test_ctrl);
6177 if (val64 & MC_RLDRAM_TEST_DONE)
6178 break;
6179 msleep(200);
6180 }
6181
6182 if (cnt == 5)
6183 break;
6184
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006185 val64 = MC_RLDRAM_TEST_MODE | MC_RLDRAM_TEST_GO;
6186 SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006187
6188 for (cnt = 0; cnt < 5; cnt++) {
6189 val64 = readq(&bar0->mc_rldram_test_ctrl);
6190 if (val64 & MC_RLDRAM_TEST_DONE)
6191 break;
6192 msleep(500);
6193 }
6194
6195 if (cnt == 5)
6196 break;
6197
6198 val64 = readq(&bar0->mc_rldram_test_ctrl);
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006199 if (!(val64 & MC_RLDRAM_TEST_PASS))
6200 test_fail = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006201
6202 iteration++;
6203 }
6204
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006205 *data = test_fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006206
ravinandan.arakali@neterion.comad4ebed2005-10-17 18:26:20 -07006207 /* Bring the adapter out of test mode */
6208 SPECIAL_REG_WRITE(0, &bar0->mc_rldram_test_ctrl, LF);
6209
6210 return test_fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006211}
6212
6213/**
6214 * s2io_ethtool_test - conducts 6 tsets to determine the health of card.
6215 * @sp : private member of the device structure, which is a pointer to the
6216 * s2io_nic structure.
6217 * @ethtest : pointer to a ethtool command specific structure that will be
6218 * returned to the user.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006219 * @data : variable that returns the result of each of the test
Linus Torvalds1da177e2005-04-16 15:20:36 -07006220 * conducted by the driver.
6221 * Description:
6222 * This function conducts 6 tests ( 4 offline and 2 online) to determine
6223 * the health of the card.
6224 * Return value:
6225 * void
6226 */
6227
6228static void s2io_ethtool_test(struct net_device *dev,
6229 struct ethtool_test *ethtest,
Joe Perchesd44570e2009-08-24 17:29:44 +00006230 uint64_t *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006231{
Wang Chen4cf16532008-11-12 23:38:14 -08006232 struct s2io_nic *sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006233 int orig_state = netif_running(sp->dev);
6234
6235 if (ethtest->flags == ETH_TEST_FL_OFFLINE) {
6236 /* Offline Tests. */
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006237 if (orig_state)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006238 s2io_close(sp->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006239
6240 if (s2io_register_test(sp, &data[0]))
6241 ethtest->flags |= ETH_TEST_FL_FAILED;
6242
6243 s2io_reset(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006244
6245 if (s2io_rldram_test(sp, &data[3]))
6246 ethtest->flags |= ETH_TEST_FL_FAILED;
6247
6248 s2io_reset(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006249
6250 if (s2io_eeprom_test(sp, &data[1]))
6251 ethtest->flags |= ETH_TEST_FL_FAILED;
6252
6253 if (s2io_bist_test(sp, &data[4]))
6254 ethtest->flags |= ETH_TEST_FL_FAILED;
6255
6256 if (orig_state)
6257 s2io_open(sp->dev);
6258
6259 data[2] = 0;
6260 } else {
6261 /* Online Tests. */
6262 if (!orig_state) {
Joe Perchesd44570e2009-08-24 17:29:44 +00006263 DBG_PRINT(ERR_DBG, "%s: is not up, cannot run test\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07006264 dev->name);
6265 data[0] = -1;
6266 data[1] = -1;
6267 data[2] = -1;
6268 data[3] = -1;
6269 data[4] = -1;
6270 }
6271
6272 if (s2io_link_test(sp, &data[2]))
6273 ethtest->flags |= ETH_TEST_FL_FAILED;
6274
6275 data[0] = 0;
6276 data[1] = 0;
6277 data[3] = 0;
6278 data[4] = 0;
6279 }
6280}
6281
6282static void s2io_get_ethtool_stats(struct net_device *dev,
6283 struct ethtool_stats *estats,
Joe Perchesd44570e2009-08-24 17:29:44 +00006284 u64 *tmp_stats)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006285{
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07006286 int i = 0, k;
Wang Chen4cf16532008-11-12 23:38:14 -08006287 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00006288 struct stat_block *stats = sp->mac_control.stats_info;
6289 struct swStat *swstats = &stats->sw_stat;
6290 struct xpakStat *xstats = &stats->xpak_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006291
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07006292 s2io_updt_stats(sp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006293 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006294 (u64)le32_to_cpu(stats->tmac_frms_oflow) << 32 |
6295 le32_to_cpu(stats->tmac_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006296 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006297 (u64)le32_to_cpu(stats->tmac_data_octets_oflow) << 32 |
6298 le32_to_cpu(stats->tmac_data_octets);
6299 tmp_stats[i++] = le64_to_cpu(stats->tmac_drop_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006300 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006301 (u64)le32_to_cpu(stats->tmac_mcst_frms_oflow) << 32 |
6302 le32_to_cpu(stats->tmac_mcst_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006303 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006304 (u64)le32_to_cpu(stats->tmac_bcst_frms_oflow) << 32 |
6305 le32_to_cpu(stats->tmac_bcst_frms);
6306 tmp_stats[i++] = le64_to_cpu(stats->tmac_pause_ctrl_frms);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006307 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006308 (u64)le32_to_cpu(stats->tmac_ttl_octets_oflow) << 32 |
6309 le32_to_cpu(stats->tmac_ttl_octets);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006310 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006311 (u64)le32_to_cpu(stats->tmac_ucst_frms_oflow) << 32 |
6312 le32_to_cpu(stats->tmac_ucst_frms);
Joe Perchesd44570e2009-08-24 17:29:44 +00006313 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006314 (u64)le32_to_cpu(stats->tmac_nucst_frms_oflow) << 32 |
6315 le32_to_cpu(stats->tmac_nucst_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006316 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006317 (u64)le32_to_cpu(stats->tmac_any_err_frms_oflow) << 32 |
6318 le32_to_cpu(stats->tmac_any_err_frms);
6319 tmp_stats[i++] = le64_to_cpu(stats->tmac_ttl_less_fb_octets);
6320 tmp_stats[i++] = le64_to_cpu(stats->tmac_vld_ip_octets);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006321 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006322 (u64)le32_to_cpu(stats->tmac_vld_ip_oflow) << 32 |
6323 le32_to_cpu(stats->tmac_vld_ip);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006324 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006325 (u64)le32_to_cpu(stats->tmac_drop_ip_oflow) << 32 |
6326 le32_to_cpu(stats->tmac_drop_ip);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006327 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006328 (u64)le32_to_cpu(stats->tmac_icmp_oflow) << 32 |
6329 le32_to_cpu(stats->tmac_icmp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006330 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006331 (u64)le32_to_cpu(stats->tmac_rst_tcp_oflow) << 32 |
6332 le32_to_cpu(stats->tmac_rst_tcp);
6333 tmp_stats[i++] = le64_to_cpu(stats->tmac_tcp);
6334 tmp_stats[i++] = (u64)le32_to_cpu(stats->tmac_udp_oflow) << 32 |
6335 le32_to_cpu(stats->tmac_udp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006336 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006337 (u64)le32_to_cpu(stats->rmac_vld_frms_oflow) << 32 |
6338 le32_to_cpu(stats->rmac_vld_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006339 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006340 (u64)le32_to_cpu(stats->rmac_data_octets_oflow) << 32 |
6341 le32_to_cpu(stats->rmac_data_octets);
6342 tmp_stats[i++] = le64_to_cpu(stats->rmac_fcs_err_frms);
6343 tmp_stats[i++] = le64_to_cpu(stats->rmac_drop_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006344 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006345 (u64)le32_to_cpu(stats->rmac_vld_mcst_frms_oflow) << 32 |
6346 le32_to_cpu(stats->rmac_vld_mcst_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006347 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006348 (u64)le32_to_cpu(stats->rmac_vld_bcst_frms_oflow) << 32 |
6349 le32_to_cpu(stats->rmac_vld_bcst_frms);
6350 tmp_stats[i++] = le32_to_cpu(stats->rmac_in_rng_len_err_frms);
6351 tmp_stats[i++] = le32_to_cpu(stats->rmac_out_rng_len_err_frms);
6352 tmp_stats[i++] = le64_to_cpu(stats->rmac_long_frms);
6353 tmp_stats[i++] = le64_to_cpu(stats->rmac_pause_ctrl_frms);
6354 tmp_stats[i++] = le64_to_cpu(stats->rmac_unsup_ctrl_frms);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006355 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006356 (u64)le32_to_cpu(stats->rmac_ttl_octets_oflow) << 32 |
6357 le32_to_cpu(stats->rmac_ttl_octets);
Joe Perchesd44570e2009-08-24 17:29:44 +00006358 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006359 (u64)le32_to_cpu(stats->rmac_accepted_ucst_frms_oflow) << 32
6360 | le32_to_cpu(stats->rmac_accepted_ucst_frms);
Joe Perchesd44570e2009-08-24 17:29:44 +00006361 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006362 (u64)le32_to_cpu(stats->rmac_accepted_nucst_frms_oflow)
6363 << 32 | le32_to_cpu(stats->rmac_accepted_nucst_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006364 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006365 (u64)le32_to_cpu(stats->rmac_discarded_frms_oflow) << 32 |
6366 le32_to_cpu(stats->rmac_discarded_frms);
Joe Perchesd44570e2009-08-24 17:29:44 +00006367 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006368 (u64)le32_to_cpu(stats->rmac_drop_events_oflow)
6369 << 32 | le32_to_cpu(stats->rmac_drop_events);
6370 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_less_fb_octets);
6371 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006372 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006373 (u64)le32_to_cpu(stats->rmac_usized_frms_oflow) << 32 |
6374 le32_to_cpu(stats->rmac_usized_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006375 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006376 (u64)le32_to_cpu(stats->rmac_osized_frms_oflow) << 32 |
6377 le32_to_cpu(stats->rmac_osized_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006378 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006379 (u64)le32_to_cpu(stats->rmac_frag_frms_oflow) << 32 |
6380 le32_to_cpu(stats->rmac_frag_frms);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006381 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006382 (u64)le32_to_cpu(stats->rmac_jabber_frms_oflow) << 32 |
6383 le32_to_cpu(stats->rmac_jabber_frms);
6384 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_64_frms);
6385 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_65_127_frms);
6386 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_128_255_frms);
6387 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_256_511_frms);
6388 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_512_1023_frms);
6389 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_1024_1518_frms);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006390 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006391 (u64)le32_to_cpu(stats->rmac_ip_oflow) << 32 |
6392 le32_to_cpu(stats->rmac_ip);
6393 tmp_stats[i++] = le64_to_cpu(stats->rmac_ip_octets);
6394 tmp_stats[i++] = le32_to_cpu(stats->rmac_hdr_err_ip);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006395 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006396 (u64)le32_to_cpu(stats->rmac_drop_ip_oflow) << 32 |
6397 le32_to_cpu(stats->rmac_drop_ip);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006398 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006399 (u64)le32_to_cpu(stats->rmac_icmp_oflow) << 32 |
6400 le32_to_cpu(stats->rmac_icmp);
6401 tmp_stats[i++] = le64_to_cpu(stats->rmac_tcp);
Ananda Rajubd1034f2006-04-21 19:20:22 -04006402 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006403 (u64)le32_to_cpu(stats->rmac_udp_oflow) << 32 |
6404 le32_to_cpu(stats->rmac_udp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006405 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006406 (u64)le32_to_cpu(stats->rmac_err_drp_udp_oflow) << 32 |
6407 le32_to_cpu(stats->rmac_err_drp_udp);
6408 tmp_stats[i++] = le64_to_cpu(stats->rmac_xgmii_err_sym);
6409 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q0);
6410 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q1);
6411 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q2);
6412 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q3);
6413 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q4);
6414 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q5);
6415 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q6);
6416 tmp_stats[i++] = le64_to_cpu(stats->rmac_frms_q7);
6417 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q0);
6418 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q1);
6419 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q2);
6420 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q3);
6421 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q4);
6422 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q5);
6423 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q6);
6424 tmp_stats[i++] = le16_to_cpu(stats->rmac_full_q7);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006425 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006426 (u64)le32_to_cpu(stats->rmac_pause_cnt_oflow) << 32 |
6427 le32_to_cpu(stats->rmac_pause_cnt);
6428 tmp_stats[i++] = le64_to_cpu(stats->rmac_xgmii_data_err_cnt);
6429 tmp_stats[i++] = le64_to_cpu(stats->rmac_xgmii_ctrl_err_cnt);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07006430 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006431 (u64)le32_to_cpu(stats->rmac_accepted_ip_oflow) << 32 |
6432 le32_to_cpu(stats->rmac_accepted_ip);
6433 tmp_stats[i++] = le32_to_cpu(stats->rmac_err_tcp);
6434 tmp_stats[i++] = le32_to_cpu(stats->rd_req_cnt);
6435 tmp_stats[i++] = le32_to_cpu(stats->new_rd_req_cnt);
6436 tmp_stats[i++] = le32_to_cpu(stats->new_rd_req_rtry_cnt);
6437 tmp_stats[i++] = le32_to_cpu(stats->rd_rtry_cnt);
6438 tmp_stats[i++] = le32_to_cpu(stats->wr_rtry_rd_ack_cnt);
6439 tmp_stats[i++] = le32_to_cpu(stats->wr_req_cnt);
6440 tmp_stats[i++] = le32_to_cpu(stats->new_wr_req_cnt);
6441 tmp_stats[i++] = le32_to_cpu(stats->new_wr_req_rtry_cnt);
6442 tmp_stats[i++] = le32_to_cpu(stats->wr_rtry_cnt);
6443 tmp_stats[i++] = le32_to_cpu(stats->wr_disc_cnt);
6444 tmp_stats[i++] = le32_to_cpu(stats->rd_rtry_wr_ack_cnt);
6445 tmp_stats[i++] = le32_to_cpu(stats->txp_wr_cnt);
6446 tmp_stats[i++] = le32_to_cpu(stats->txd_rd_cnt);
6447 tmp_stats[i++] = le32_to_cpu(stats->txd_wr_cnt);
6448 tmp_stats[i++] = le32_to_cpu(stats->rxd_rd_cnt);
6449 tmp_stats[i++] = le32_to_cpu(stats->rxd_wr_cnt);
6450 tmp_stats[i++] = le32_to_cpu(stats->txf_rd_cnt);
6451 tmp_stats[i++] = le32_to_cpu(stats->rxf_wr_cnt);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006452
6453 /* Enhanced statistics exist only for Hercules */
Joe Perchesd44570e2009-08-24 17:29:44 +00006454 if (sp->device_type == XFRAME_II_DEVICE) {
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006455 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006456 le64_to_cpu(stats->rmac_ttl_1519_4095_frms);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006457 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006458 le64_to_cpu(stats->rmac_ttl_4096_8191_frms);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006459 tmp_stats[i++] =
Joe Perchesffb5df62009-08-24 17:29:47 +00006460 le64_to_cpu(stats->rmac_ttl_8192_max_frms);
6461 tmp_stats[i++] = le64_to_cpu(stats->rmac_ttl_gt_max_frms);
6462 tmp_stats[i++] = le64_to_cpu(stats->rmac_osized_alt_frms);
6463 tmp_stats[i++] = le64_to_cpu(stats->rmac_jabber_alt_frms);
6464 tmp_stats[i++] = le64_to_cpu(stats->rmac_gt_max_alt_frms);
6465 tmp_stats[i++] = le64_to_cpu(stats->rmac_vlan_frms);
6466 tmp_stats[i++] = le32_to_cpu(stats->rmac_len_discard);
6467 tmp_stats[i++] = le32_to_cpu(stats->rmac_fcs_discard);
6468 tmp_stats[i++] = le32_to_cpu(stats->rmac_pf_discard);
6469 tmp_stats[i++] = le32_to_cpu(stats->rmac_da_discard);
6470 tmp_stats[i++] = le32_to_cpu(stats->rmac_red_discard);
6471 tmp_stats[i++] = le32_to_cpu(stats->rmac_rts_discard);
6472 tmp_stats[i++] = le32_to_cpu(stats->rmac_ingm_full_discard);
6473 tmp_stats[i++] = le32_to_cpu(stats->link_fault_cnt);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006474 }
6475
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07006476 tmp_stats[i++] = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00006477 tmp_stats[i++] = swstats->single_ecc_errs;
6478 tmp_stats[i++] = swstats->double_ecc_errs;
6479 tmp_stats[i++] = swstats->parity_err_cnt;
6480 tmp_stats[i++] = swstats->serious_err_cnt;
6481 tmp_stats[i++] = swstats->soft_reset_cnt;
6482 tmp_stats[i++] = swstats->fifo_full_cnt;
Sivakumar Subramani8116f3c2007-09-17 13:05:35 -07006483 for (k = 0; k < MAX_RX_RINGS; k++)
Joe Perchesffb5df62009-08-24 17:29:47 +00006484 tmp_stats[i++] = swstats->ring_full_cnt[k];
6485 tmp_stats[i++] = xstats->alarm_transceiver_temp_high;
6486 tmp_stats[i++] = xstats->alarm_transceiver_temp_low;
6487 tmp_stats[i++] = xstats->alarm_laser_bias_current_high;
6488 tmp_stats[i++] = xstats->alarm_laser_bias_current_low;
6489 tmp_stats[i++] = xstats->alarm_laser_output_power_high;
6490 tmp_stats[i++] = xstats->alarm_laser_output_power_low;
6491 tmp_stats[i++] = xstats->warn_transceiver_temp_high;
6492 tmp_stats[i++] = xstats->warn_transceiver_temp_low;
6493 tmp_stats[i++] = xstats->warn_laser_bias_current_high;
6494 tmp_stats[i++] = xstats->warn_laser_bias_current_low;
6495 tmp_stats[i++] = xstats->warn_laser_output_power_high;
6496 tmp_stats[i++] = xstats->warn_laser_output_power_low;
6497 tmp_stats[i++] = swstats->clubbed_frms_cnt;
6498 tmp_stats[i++] = swstats->sending_both;
6499 tmp_stats[i++] = swstats->outof_sequence_pkts;
6500 tmp_stats[i++] = swstats->flush_max_pkts;
6501 if (swstats->num_aggregations) {
6502 u64 tmp = swstats->sum_avg_pkts_aggregated;
Ananda Rajubd1034f2006-04-21 19:20:22 -04006503 int count = 0;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04006504 /*
Ananda Rajubd1034f2006-04-21 19:20:22 -04006505 * Since 64-bit divide does not work on all platforms,
6506 * do repeated subtraction.
6507 */
Joe Perchesffb5df62009-08-24 17:29:47 +00006508 while (tmp >= swstats->num_aggregations) {
6509 tmp -= swstats->num_aggregations;
Ananda Rajubd1034f2006-04-21 19:20:22 -04006510 count++;
6511 }
6512 tmp_stats[i++] = count;
Joe Perchesd44570e2009-08-24 17:29:44 +00006513 } else
Ananda Rajubd1034f2006-04-21 19:20:22 -04006514 tmp_stats[i++] = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00006515 tmp_stats[i++] = swstats->mem_alloc_fail_cnt;
6516 tmp_stats[i++] = swstats->pci_map_fail_cnt;
6517 tmp_stats[i++] = swstats->watchdog_timer_cnt;
6518 tmp_stats[i++] = swstats->mem_allocated;
6519 tmp_stats[i++] = swstats->mem_freed;
6520 tmp_stats[i++] = swstats->link_up_cnt;
6521 tmp_stats[i++] = swstats->link_down_cnt;
6522 tmp_stats[i++] = swstats->link_up_time;
6523 tmp_stats[i++] = swstats->link_down_time;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04006524
Joe Perchesffb5df62009-08-24 17:29:47 +00006525 tmp_stats[i++] = swstats->tx_buf_abort_cnt;
6526 tmp_stats[i++] = swstats->tx_desc_abort_cnt;
6527 tmp_stats[i++] = swstats->tx_parity_err_cnt;
6528 tmp_stats[i++] = swstats->tx_link_loss_cnt;
6529 tmp_stats[i++] = swstats->tx_list_proc_err_cnt;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04006530
Joe Perchesffb5df62009-08-24 17:29:47 +00006531 tmp_stats[i++] = swstats->rx_parity_err_cnt;
6532 tmp_stats[i++] = swstats->rx_abort_cnt;
6533 tmp_stats[i++] = swstats->rx_parity_abort_cnt;
6534 tmp_stats[i++] = swstats->rx_rda_fail_cnt;
6535 tmp_stats[i++] = swstats->rx_unkn_prot_cnt;
6536 tmp_stats[i++] = swstats->rx_fcs_err_cnt;
6537 tmp_stats[i++] = swstats->rx_buf_size_err_cnt;
6538 tmp_stats[i++] = swstats->rx_rxd_corrupt_cnt;
6539 tmp_stats[i++] = swstats->rx_unkn_err_cnt;
6540 tmp_stats[i++] = swstats->tda_err_cnt;
6541 tmp_stats[i++] = swstats->pfc_err_cnt;
6542 tmp_stats[i++] = swstats->pcc_err_cnt;
6543 tmp_stats[i++] = swstats->tti_err_cnt;
6544 tmp_stats[i++] = swstats->tpa_err_cnt;
6545 tmp_stats[i++] = swstats->sm_err_cnt;
6546 tmp_stats[i++] = swstats->lso_err_cnt;
6547 tmp_stats[i++] = swstats->mac_tmac_err_cnt;
6548 tmp_stats[i++] = swstats->mac_rmac_err_cnt;
6549 tmp_stats[i++] = swstats->xgxs_txgxs_err_cnt;
6550 tmp_stats[i++] = swstats->xgxs_rxgxs_err_cnt;
6551 tmp_stats[i++] = swstats->rc_err_cnt;
6552 tmp_stats[i++] = swstats->prc_pcix_err_cnt;
6553 tmp_stats[i++] = swstats->rpa_err_cnt;
6554 tmp_stats[i++] = swstats->rda_err_cnt;
6555 tmp_stats[i++] = swstats->rti_err_cnt;
6556 tmp_stats[i++] = swstats->mc_err_cnt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006557}
6558
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006559static int s2io_ethtool_get_regs_len(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006560{
Joe Perchesd44570e2009-08-24 17:29:44 +00006561 return XENA_REG_SPACE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006562}
6563
6564
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006565static int s2io_get_eeprom_len(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006566{
Joe Perchesd44570e2009-08-24 17:29:44 +00006567 return XENA_EEPROM_SPACE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006568}
6569
Jeff Garzikb9f2c042007-10-03 18:07:32 -07006570static int s2io_get_sset_count(struct net_device *dev, int sset)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006571{
Wang Chen4cf16532008-11-12 23:38:14 -08006572 struct s2io_nic *sp = netdev_priv(dev);
Jeff Garzikb9f2c042007-10-03 18:07:32 -07006573
6574 switch (sset) {
6575 case ETH_SS_TEST:
6576 return S2IO_TEST_LEN;
6577 case ETH_SS_STATS:
Joe Perchesd44570e2009-08-24 17:29:44 +00006578 switch (sp->device_type) {
Jeff Garzikb9f2c042007-10-03 18:07:32 -07006579 case XFRAME_I_DEVICE:
6580 return XFRAME_I_STAT_LEN;
6581 case XFRAME_II_DEVICE:
6582 return XFRAME_II_STAT_LEN;
6583 default:
6584 return 0;
6585 }
6586 default:
6587 return -EOPNOTSUPP;
6588 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006589}
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006590
6591static void s2io_ethtool_get_strings(struct net_device *dev,
Joe Perchesd44570e2009-08-24 17:29:44 +00006592 u32 stringset, u8 *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006593{
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006594 int stat_size = 0;
Wang Chen4cf16532008-11-12 23:38:14 -08006595 struct s2io_nic *sp = netdev_priv(dev);
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006596
Linus Torvalds1da177e2005-04-16 15:20:36 -07006597 switch (stringset) {
6598 case ETH_SS_TEST:
6599 memcpy(data, s2io_gstrings, S2IO_STRINGS_LEN);
6600 break;
6601 case ETH_SS_STATS:
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006602 stat_size = sizeof(ethtool_xena_stats_keys);
Joe Perchesd44570e2009-08-24 17:29:44 +00006603 memcpy(data, &ethtool_xena_stats_keys, stat_size);
6604 if (sp->device_type == XFRAME_II_DEVICE) {
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006605 memcpy(data + stat_size,
Joe Perchesd44570e2009-08-24 17:29:44 +00006606 &ethtool_enhanced_stats_keys,
6607 sizeof(ethtool_enhanced_stats_keys));
Sivakumar Subramanifa1f0cb2007-02-24 02:03:22 -05006608 stat_size += sizeof(ethtool_enhanced_stats_keys);
6609 }
6610
6611 memcpy(data + stat_size, &ethtool_driver_stats_keys,
Joe Perchesd44570e2009-08-24 17:29:44 +00006612 sizeof(ethtool_driver_stats_keys));
Linus Torvalds1da177e2005-04-16 15:20:36 -07006613 }
6614}
Linus Torvalds1da177e2005-04-16 15:20:36 -07006615
Michał Mirosławc8f44af2011-11-15 15:29:55 +00006616static int s2io_set_features(struct net_device *dev, netdev_features_t features)
Jon Mason958de192010-06-24 18:45:10 +00006617{
6618 struct s2io_nic *sp = netdev_priv(dev);
Michał Mirosławc8f44af2011-11-15 15:29:55 +00006619 netdev_features_t changed = (features ^ dev->features) & NETIF_F_LRO;
Jon Mason958de192010-06-24 18:45:10 +00006620
6621 if (changed && netif_running(dev)) {
Michał Mirosławb437a8c2011-04-18 13:31:20 +00006622 int rc;
6623
Jon Mason958de192010-06-24 18:45:10 +00006624 s2io_stop_all_tx_queue(sp);
6625 s2io_card_down(sp);
Michał Mirosławb437a8c2011-04-18 13:31:20 +00006626 dev->features = features;
Jon Mason958de192010-06-24 18:45:10 +00006627 rc = s2io_card_up(sp);
6628 if (rc)
6629 s2io_reset(sp);
6630 else
6631 s2io_start_all_tx_queue(sp);
Michał Mirosławb437a8c2011-04-18 13:31:20 +00006632
6633 return rc ? rc : 1;
Jon Mason958de192010-06-24 18:45:10 +00006634 }
6635
Michał Mirosławb437a8c2011-04-18 13:31:20 +00006636 return 0;
Jon Mason958de192010-06-24 18:45:10 +00006637}
6638
Jeff Garzik7282d492006-09-13 14:30:00 -04006639static const struct ethtool_ops netdev_ethtool_ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07006640 .get_settings = s2io_ethtool_gset,
6641 .set_settings = s2io_ethtool_sset,
6642 .get_drvinfo = s2io_ethtool_gdrvinfo,
6643 .get_regs_len = s2io_ethtool_get_regs_len,
6644 .get_regs = s2io_ethtool_gregs,
6645 .get_link = ethtool_op_get_link,
6646 .get_eeprom_len = s2io_get_eeprom_len,
6647 .get_eeprom = s2io_ethtool_geeprom,
6648 .set_eeprom = s2io_ethtool_seeprom,
Sreenivasa Honnur0cec35e2007-05-10 04:06:28 -04006649 .get_ringparam = s2io_ethtool_gringparam,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006650 .get_pauseparam = s2io_ethtool_getpause_data,
6651 .set_pauseparam = s2io_ethtool_setpause_data,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006652 .self_test = s2io_ethtool_test,
6653 .get_strings = s2io_ethtool_get_strings,
stephen hemminger034e3452011-04-04 15:09:25 +00006654 .set_phys_id = s2io_ethtool_set_led,
Jeff Garzikb9f2c042007-10-03 18:07:32 -07006655 .get_ethtool_stats = s2io_get_ethtool_stats,
6656 .get_sset_count = s2io_get_sset_count,
Linus Torvalds1da177e2005-04-16 15:20:36 -07006657};
6658
6659/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006660 * s2io_ioctl - Entry point for the Ioctl
Linus Torvalds1da177e2005-04-16 15:20:36 -07006661 * @dev : Device pointer.
6662 * @ifr : An IOCTL specefic structure, that can contain a pointer to
6663 * a proprietary structure used to pass information to the driver.
6664 * @cmd : This is used to distinguish between the different commands that
6665 * can be passed to the IOCTL functions.
6666 * Description:
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07006667 * Currently there are no special functionality supported in IOCTL, hence
6668 * function always return EOPNOTSUPPORTED
Linus Torvalds1da177e2005-04-16 15:20:36 -07006669 */
6670
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006671static int s2io_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006672{
6673 return -EOPNOTSUPP;
6674}
6675
6676/**
6677 * s2io_change_mtu - entry point to change MTU size for the device.
6678 * @dev : device pointer.
6679 * @new_mtu : the new MTU size for the device.
6680 * Description: A driver entry point to change MTU size for the device.
6681 * Before changing the MTU the device must be stopped.
6682 * Return value:
6683 * 0 on success and an appropriate (-)ve integer as defined in errno.h
6684 * file on failure.
6685 */
6686
Adrian Bunkac1f60d2005-11-06 01:46:47 +01006687static int s2io_change_mtu(struct net_device *dev, int new_mtu)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006688{
Wang Chen4cf16532008-11-12 23:38:14 -08006689 struct s2io_nic *sp = netdev_priv(dev);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05006690 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006691
6692 if ((new_mtu < MIN_MTU) || (new_mtu > S2IO_JUMBO_SIZE)) {
Joe Perchesd44570e2009-08-24 17:29:44 +00006693 DBG_PRINT(ERR_DBG, "%s: MTU size is invalid.\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006694 return -EPERM;
6695 }
6696
Linus Torvalds1da177e2005-04-16 15:20:36 -07006697 dev->mtu = new_mtu;
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006698 if (netif_running(dev)) {
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05006699 s2io_stop_all_tx_queue(sp);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006700 s2io_card_down(sp);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05006701 ret = s2io_card_up(sp);
6702 if (ret) {
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006703 DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n",
Harvey Harrisonb39d66a2008-08-20 16:52:04 -07006704 __func__);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05006705 return ret;
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006706 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05006707 s2io_wake_all_tx_queue(sp);
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006708 } else { /* Device is down */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006709 struct XENA_dev_config __iomem *bar0 = sp->bar0;
raghavendra.koushik@neterion.comd8892c62005-08-03 12:33:12 -07006710 u64 val64 = new_mtu;
6711
6712 writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len);
6713 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006714
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05006715 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006716}
6717
6718/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07006719 * s2io_set_link - Set the LInk status
6720 * @data: long pointer to device private structue
6721 * Description: Sets the link status for the adapter
6722 */
6723
David Howellsc4028952006-11-22 14:57:56 +00006724static void s2io_set_link(struct work_struct *work)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006725{
Joe Perchesd44570e2009-08-24 17:29:44 +00006726 struct s2io_nic *nic = container_of(work, struct s2io_nic,
6727 set_link_task);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006728 struct net_device *dev = nic->dev;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006729 struct XENA_dev_config __iomem *bar0 = nic->bar0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006730 register u64 val64;
6731 u16 subid;
6732
Francois Romieu22747d62007-02-15 23:37:50 +01006733 rtnl_lock();
6734
6735 if (!netif_running(dev))
6736 goto out_unlock;
6737
Sivakumar Subramani92b84432007-09-06 06:51:14 -04006738 if (test_and_set_bit(__S2IO_STATE_LINK_TASK, &(nic->state))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07006739 /* The card is being reset, no point doing anything */
Francois Romieu22747d62007-02-15 23:37:50 +01006740 goto out_unlock;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006741 }
6742
6743 subid = nic->pdev->subsystem_device;
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07006744 if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) {
6745 /*
6746 * Allow a small delay for the NICs self initiated
6747 * cleanup to complete.
6748 */
6749 msleep(100);
6750 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006751
6752 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006753 if (LINK_IS_UP(val64)) {
6754 if (!(readq(&bar0->adapter_control) & ADAPTER_CNTL_EN)) {
6755 if (verify_xena_quiescence(nic)) {
6756 val64 = readq(&bar0->adapter_control);
6757 val64 |= ADAPTER_CNTL_EN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006758 writeq(val64, &bar0->adapter_control);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006759 if (CARDS_WITH_FAULTY_LINK_INDICATORS(
Joe Perchesd44570e2009-08-24 17:29:44 +00006760 nic->device_type, subid)) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006761 val64 = readq(&bar0->gpio_control);
6762 val64 |= GPIO_CTRL_GPIO_0;
6763 writeq(val64, &bar0->gpio_control);
6764 val64 = readq(&bar0->gpio_control);
6765 } else {
6766 val64 |= ADAPTER_LED_ON;
6767 writeq(val64, &bar0->adapter_control);
raghavendra.koushik@neterion.coma371a072005-08-03 12:38:59 -07006768 }
Tobias Klauserf957bcf2009-06-04 23:07:59 +00006769 nic->device_enabled_once = true;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006770 } else {
Joe Perches9e39f7c2009-08-25 08:52:00 +00006771 DBG_PRINT(ERR_DBG,
6772 "%s: Error: device is not Quiescent\n",
6773 dev->name);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05006774 s2io_stop_all_tx_queue(nic);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006775 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07006776 }
Sivakumar Subramani92c48792007-08-06 05:38:19 -04006777 val64 = readq(&bar0->adapter_control);
6778 val64 |= ADAPTER_LED_ON;
6779 writeq(val64, &bar0->adapter_control);
6780 s2io_link(nic, LINK_UP);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006781 } else {
6782 if (CARDS_WITH_FAULTY_LINK_INDICATORS(nic->device_type,
6783 subid)) {
6784 val64 = readq(&bar0->gpio_control);
6785 val64 &= ~GPIO_CTRL_GPIO_0;
6786 writeq(val64, &bar0->gpio_control);
6787 val64 = readq(&bar0->gpio_control);
6788 }
Sivakumar Subramani92c48792007-08-06 05:38:19 -04006789 /* turn off LED */
6790 val64 = readq(&bar0->adapter_control);
Joe Perchesd44570e2009-08-24 17:29:44 +00006791 val64 = val64 & (~ADAPTER_LED_ON);
Sivakumar Subramani92c48792007-08-06 05:38:19 -04006792 writeq(val64, &bar0->adapter_control);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05006793 s2io_link(nic, LINK_DOWN);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006794 }
Sivakumar Subramani92b84432007-09-06 06:51:14 -04006795 clear_bit(__S2IO_STATE_LINK_TASK, &(nic->state));
Francois Romieu22747d62007-02-15 23:37:50 +01006796
6797out_unlock:
Sivakumar Subramanid8d70ca2007-02-24 02:04:24 -05006798 rtnl_unlock();
Linus Torvalds1da177e2005-04-16 15:20:36 -07006799}
6800
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006801static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp,
Joe Perchesd44570e2009-08-24 17:29:44 +00006802 struct buffAdd *ba,
6803 struct sk_buff **skb, u64 *temp0, u64 *temp1,
6804 u64 *temp2, int size)
Ananda Raju5d3213c2006-04-21 19:23:26 -04006805{
6806 struct net_device *dev = sp->dev;
Veena Parat491abf22007-07-23 02:37:14 -04006807 struct swStat *stats = &sp->mac_control.stats_info->sw_stat;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006808
6809 if ((sp->rxd_mode == RXD_MODE_1) && (rxdp->Host_Control == 0)) {
Veena Parat6d517a22007-07-23 02:20:51 -04006810 struct RxD1 *rxdp1 = (struct RxD1 *)rxdp;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006811 /* allocate skb */
6812 if (*skb) {
6813 DBG_PRINT(INFO_DBG, "SKB is not NULL\n");
6814 /*
6815 * As Rx frame are not going to be processed,
6816 * using same mapped address for the Rxd
6817 * buffer pointer
6818 */
Veena Parat6d517a22007-07-23 02:20:51 -04006819 rxdp1->Buffer0_ptr = *temp0;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006820 } else {
Pradeep A Dalvic056b732012-02-05 02:50:38 +00006821 *skb = netdev_alloc_skb(dev, size);
Ananda Raju5d3213c2006-04-21 19:23:26 -04006822 if (!(*skb)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00006823 DBG_PRINT(INFO_DBG,
6824 "%s: Out of memory to allocate %s\n",
6825 dev->name, "1 buf mode SKBs");
Joe Perchesffb5df62009-08-24 17:29:47 +00006826 stats->mem_alloc_fail_cnt++;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006827 return -ENOMEM ;
6828 }
Joe Perchesffb5df62009-08-24 17:29:47 +00006829 stats->mem_allocated += (*skb)->truesize;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006830 /* storing the mapped addr in a temp variable
6831 * such it will be used for next rxd whose
6832 * Host Control is NULL
6833 */
Veena Parat6d517a22007-07-23 02:20:51 -04006834 rxdp1->Buffer0_ptr = *temp0 =
Joe Perchesd44570e2009-08-24 17:29:44 +00006835 pci_map_single(sp->pdev, (*skb)->data,
6836 size - NET_IP_ALIGN,
6837 PCI_DMA_FROMDEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07006838 if (pci_dma_mapping_error(sp->pdev, rxdp1->Buffer0_ptr))
Veena Parat491abf22007-07-23 02:37:14 -04006839 goto memalloc_failed;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006840 rxdp->Host_Control = (unsigned long) (*skb);
6841 }
6842 } else if ((sp->rxd_mode == RXD_MODE_3B) && (rxdp->Host_Control == 0)) {
Veena Parat6d517a22007-07-23 02:20:51 -04006843 struct RxD3 *rxdp3 = (struct RxD3 *)rxdp;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006844 /* Two buffer Mode */
6845 if (*skb) {
Veena Parat6d517a22007-07-23 02:20:51 -04006846 rxdp3->Buffer2_ptr = *temp2;
6847 rxdp3->Buffer0_ptr = *temp0;
6848 rxdp3->Buffer1_ptr = *temp1;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006849 } else {
Pradeep A Dalvic056b732012-02-05 02:50:38 +00006850 *skb = netdev_alloc_skb(dev, size);
David Rientjes2ceaac72006-10-30 14:19:25 -08006851 if (!(*skb)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00006852 DBG_PRINT(INFO_DBG,
6853 "%s: Out of memory to allocate %s\n",
6854 dev->name,
6855 "2 buf mode SKBs");
Joe Perchesffb5df62009-08-24 17:29:47 +00006856 stats->mem_alloc_fail_cnt++;
David Rientjes2ceaac72006-10-30 14:19:25 -08006857 return -ENOMEM;
6858 }
Joe Perchesffb5df62009-08-24 17:29:47 +00006859 stats->mem_allocated += (*skb)->truesize;
Veena Parat6d517a22007-07-23 02:20:51 -04006860 rxdp3->Buffer2_ptr = *temp2 =
Ananda Raju5d3213c2006-04-21 19:23:26 -04006861 pci_map_single(sp->pdev, (*skb)->data,
6862 dev->mtu + 4,
6863 PCI_DMA_FROMDEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07006864 if (pci_dma_mapping_error(sp->pdev, rxdp3->Buffer2_ptr))
Veena Parat491abf22007-07-23 02:37:14 -04006865 goto memalloc_failed;
Veena Parat6d517a22007-07-23 02:20:51 -04006866 rxdp3->Buffer0_ptr = *temp0 =
Joe Perchesd44570e2009-08-24 17:29:44 +00006867 pci_map_single(sp->pdev, ba->ba_0, BUF0_LEN,
6868 PCI_DMA_FROMDEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07006869 if (pci_dma_mapping_error(sp->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00006870 rxdp3->Buffer0_ptr)) {
6871 pci_unmap_single(sp->pdev,
6872 (dma_addr_t)rxdp3->Buffer2_ptr,
6873 dev->mtu + 4,
6874 PCI_DMA_FROMDEVICE);
Veena Parat491abf22007-07-23 02:37:14 -04006875 goto memalloc_failed;
6876 }
Ananda Raju5d3213c2006-04-21 19:23:26 -04006877 rxdp->Host_Control = (unsigned long) (*skb);
6878
6879 /* Buffer-1 will be dummy buffer not used */
Veena Parat6d517a22007-07-23 02:20:51 -04006880 rxdp3->Buffer1_ptr = *temp1 =
Ananda Raju5d3213c2006-04-21 19:23:26 -04006881 pci_map_single(sp->pdev, ba->ba_1, BUF1_LEN,
Joe Perchesd44570e2009-08-24 17:29:44 +00006882 PCI_DMA_FROMDEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -07006883 if (pci_dma_mapping_error(sp->pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00006884 rxdp3->Buffer1_ptr)) {
6885 pci_unmap_single(sp->pdev,
6886 (dma_addr_t)rxdp3->Buffer0_ptr,
6887 BUF0_LEN, PCI_DMA_FROMDEVICE);
6888 pci_unmap_single(sp->pdev,
6889 (dma_addr_t)rxdp3->Buffer2_ptr,
6890 dev->mtu + 4,
6891 PCI_DMA_FROMDEVICE);
Veena Parat491abf22007-07-23 02:37:14 -04006892 goto memalloc_failed;
6893 }
Ananda Raju5d3213c2006-04-21 19:23:26 -04006894 }
6895 }
6896 return 0;
Joe Perchesd44570e2009-08-24 17:29:44 +00006897
6898memalloc_failed:
6899 stats->pci_map_fail_cnt++;
6900 stats->mem_freed += (*skb)->truesize;
6901 dev_kfree_skb(*skb);
6902 return -ENOMEM;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006903}
Veena Parat491abf22007-07-23 02:37:14 -04006904
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006905static void set_rxd_buffer_size(struct s2io_nic *sp, struct RxD_t *rxdp,
6906 int size)
Ananda Raju5d3213c2006-04-21 19:23:26 -04006907{
6908 struct net_device *dev = sp->dev;
6909 if (sp->rxd_mode == RXD_MODE_1) {
Joe Perchesd44570e2009-08-24 17:29:44 +00006910 rxdp->Control_2 = SET_BUFFER0_SIZE_1(size - NET_IP_ALIGN);
Ananda Raju5d3213c2006-04-21 19:23:26 -04006911 } else if (sp->rxd_mode == RXD_MODE_3B) {
6912 rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN);
6913 rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1);
Joe Perchesd44570e2009-08-24 17:29:44 +00006914 rxdp->Control_2 |= SET_BUFFER2_SIZE_3(dev->mtu + 4);
Ananda Raju5d3213c2006-04-21 19:23:26 -04006915 }
6916}
6917
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006918static int rxd_owner_bit_reset(struct s2io_nic *sp)
Ananda Raju5d3213c2006-04-21 19:23:26 -04006919{
6920 int i, j, k, blk_cnt = 0, size;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006921 struct config_param *config = &sp->config;
Joe Perchesffb5df62009-08-24 17:29:47 +00006922 struct mac_info *mac_control = &sp->mac_control;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006923 struct net_device *dev = sp->dev;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006924 struct RxD_t *rxdp = NULL;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006925 struct sk_buff *skb = NULL;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05006926 struct buffAdd *ba = NULL;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006927 u64 temp0_64 = 0, temp1_64 = 0, temp2_64 = 0;
6928
6929 /* Calculate the size based on ring mode */
6930 size = dev->mtu + HEADER_ETHERNET_II_802_3_SIZE +
6931 HEADER_802_2_SIZE + HEADER_SNAP_SIZE;
6932 if (sp->rxd_mode == RXD_MODE_1)
6933 size += NET_IP_ALIGN;
6934 else if (sp->rxd_mode == RXD_MODE_3B)
6935 size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4;
Ananda Raju5d3213c2006-04-21 19:23:26 -04006936
6937 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00006938 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
6939 struct ring_info *ring = &mac_control->rings[i];
6940
Joe Perchesd44570e2009-08-24 17:29:44 +00006941 blk_cnt = rx_cfg->num_rxd / (rxd_count[sp->rxd_mode] + 1);
Ananda Raju5d3213c2006-04-21 19:23:26 -04006942
6943 for (j = 0; j < blk_cnt; j++) {
6944 for (k = 0; k < rxd_count[sp->rxd_mode]; k++) {
Joe Perchesd44570e2009-08-24 17:29:44 +00006945 rxdp = ring->rx_blocks[j].rxds[k].virt_addr;
6946 if (sp->rxd_mode == RXD_MODE_3B)
Joe Perches13d866a2009-08-24 17:29:41 +00006947 ba = &ring->ba[j][k];
Joe Perchesd44570e2009-08-24 17:29:44 +00006948 if (set_rxd_buffer_pointer(sp, rxdp, ba, &skb,
6949 (u64 *)&temp0_64,
6950 (u64 *)&temp1_64,
6951 (u64 *)&temp2_64,
6952 size) == -ENOMEM) {
Sivakumar Subramaniac1f90d2007-02-24 02:01:31 -05006953 return 0;
6954 }
Ananda Raju5d3213c2006-04-21 19:23:26 -04006955
6956 set_rxd_buffer_size(sp, rxdp, size);
6957 wmb();
6958 /* flip the Ownership bit to Hardware */
6959 rxdp->Control_1 |= RXD_OWN_XENA;
6960 }
6961 }
6962 }
6963 return 0;
6964
6965}
6966
Joe Perchesd44570e2009-08-24 17:29:44 +00006967static int s2io_add_isr(struct s2io_nic *sp)
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006968{
6969 int ret = 0;
6970 struct net_device *dev = sp->dev;
6971 int err = 0;
6972
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07006973 if (sp->config.intr_type == MSI_X)
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006974 ret = s2io_enable_msi_x(sp);
6975 if (ret) {
6976 DBG_PRINT(ERR_DBG, "%s: Defaulting to INTA\n", dev->name);
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07006977 sp->config.intr_type = INTA;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006978 }
6979
Joe Perchesd44570e2009-08-24 17:29:44 +00006980 /*
6981 * Store the values of the MSIX table in
6982 * the struct s2io_nic structure
6983 */
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006984 store_xmsi_data(sp);
6985
6986 /* After proper initialization of H/W, register ISR */
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07006987 if (sp->config.intr_type == MSI_X) {
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04006988 int i, msix_rx_cnt = 0;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07006989
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04006990 for (i = 0; i < sp->num_entries; i++) {
6991 if (sp->s2io_entries[i].in_use == MSIX_FLG) {
6992 if (sp->s2io_entries[i].type ==
Joe Perchesd44570e2009-08-24 17:29:44 +00006993 MSIX_RING_TYPE) {
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04006994 sprintf(sp->desc[i], "%s:MSI-X-%d-RX",
6995 dev->name, i);
6996 err = request_irq(sp->entries[i].vector,
Joe Perchesd44570e2009-08-24 17:29:44 +00006997 s2io_msix_ring_handle,
6998 0,
6999 sp->desc[i],
7000 sp->s2io_entries[i].arg);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007001 } else if (sp->s2io_entries[i].type ==
Joe Perchesd44570e2009-08-24 17:29:44 +00007002 MSIX_ALARM_TYPE) {
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007003 sprintf(sp->desc[i], "%s:MSI-X-%d-TX",
Joe Perchesd44570e2009-08-24 17:29:44 +00007004 dev->name, i);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007005 err = request_irq(sp->entries[i].vector,
Joe Perchesd44570e2009-08-24 17:29:44 +00007006 s2io_msix_fifo_handle,
7007 0,
7008 sp->desc[i],
7009 sp->s2io_entries[i].arg);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007010
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05007011 }
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007012 /* if either data or addr is zero print it. */
7013 if (!(sp->msix_info[i].addr &&
Joe Perchesd44570e2009-08-24 17:29:44 +00007014 sp->msix_info[i].data)) {
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007015 DBG_PRINT(ERR_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00007016 "%s @Addr:0x%llx Data:0x%llx\n",
7017 sp->desc[i],
7018 (unsigned long long)
7019 sp->msix_info[i].addr,
7020 (unsigned long long)
7021 ntohl(sp->msix_info[i].data));
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007022 } else
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05007023 msix_rx_cnt++;
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007024 if (err) {
7025 remove_msix_isr(sp);
7026
7027 DBG_PRINT(ERR_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00007028 "%s:MSI-X-%d registration "
7029 "failed\n", dev->name, i);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007030
7031 DBG_PRINT(ERR_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00007032 "%s: Defaulting to INTA\n",
7033 dev->name);
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007034 sp->config.intr_type = INTA;
7035 break;
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05007036 }
Sreenivasa Honnurac731ab2008-05-12 13:41:32 -04007037 sp->s2io_entries[i].in_use =
7038 MSIX_REGISTERED_SUCCESS;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007039 }
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007040 }
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08007041 if (!err) {
Joe Perches6cef2b8e2009-08-24 17:29:45 +00007042 pr_info("MSI-X-RX %d entries enabled\n", --msix_rx_cnt);
Joe Perches9e39f7c2009-08-25 08:52:00 +00007043 DBG_PRINT(INFO_DBG,
7044 "MSI-X-TX entries enabled through alarm vector\n");
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08007045 }
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007046 }
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007047 if (sp->config.intr_type == INTA) {
Francois Romieu80777c52012-03-09 19:13:48 +01007048 err = request_irq(sp->pdev->irq, s2io_isr, IRQF_SHARED,
Joe Perchesd44570e2009-08-24 17:29:44 +00007049 sp->name, dev);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007050 if (err) {
7051 DBG_PRINT(ERR_DBG, "%s: ISR registration failed\n",
7052 dev->name);
7053 return -1;
7054 }
7055 }
7056 return 0;
7057}
Joe Perchesd44570e2009-08-24 17:29:44 +00007058
7059static void s2io_rem_isr(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007060{
Sreenivasa Honnur18b2b7b2007-11-14 01:41:06 -08007061 if (sp->config.intr_type == MSI_X)
7062 remove_msix_isr(sp);
7063 else
7064 remove_inta_isr(sp);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007065}
7066
Joe Perchesd44570e2009-08-24 17:29:44 +00007067static void do_s2io_card_down(struct s2io_nic *sp, int do_io)
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007068{
7069 int cnt = 0;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007070 struct XENA_dev_config __iomem *bar0 = sp->bar0;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007071 register u64 val64 = 0;
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007072 struct config_param *config;
7073 config = &sp->config;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007074
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05007075 if (!is_s2io_card_up(sp))
7076 return;
7077
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007078 del_timer_sync(&sp->alarm_timer);
7079 /* If s2io_set_link task is executing, wait till it completes. */
Joe Perchesd44570e2009-08-24 17:29:44 +00007080 while (test_and_set_bit(__S2IO_STATE_LINK_TASK, &(sp->state)))
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007081 msleep(50);
Sivakumar Subramani92b84432007-09-06 06:51:14 -04007082 clear_bit(__S2IO_STATE_CARD_UP, &sp->state);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007083
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007084 /* Disable napi */
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007085 if (sp->config.napi) {
7086 int off = 0;
7087 if (config->intr_type == MSI_X) {
7088 for (; off < sp->config.rx_ring_num; off++)
7089 napi_disable(&sp->mac_control.rings[off].napi);
Joe Perchesd44570e2009-08-24 17:29:44 +00007090 }
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007091 else
7092 napi_disable(&sp->napi);
7093 }
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007094
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007095 /* disable Tx and Rx traffic on the NIC */
Linas Vepstasd796fdb2007-05-14 18:37:30 -05007096 if (do_io)
7097 stop_nic(sp);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007098
7099 s2io_rem_isr(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007100
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04007101 /* stop the tx queue, indicate link down */
7102 s2io_link(sp, LINK_DOWN);
7103
Linus Torvalds1da177e2005-04-16 15:20:36 -07007104 /* Check if the device is Quiescent and then Reset the NIC */
Joe Perchesd44570e2009-08-24 17:29:44 +00007105 while (do_io) {
Ananda Raju5d3213c2006-04-21 19:23:26 -04007106 /* As per the HW requirement we need to replenish the
7107 * receive buffer to avoid the ring bump. Since there is
7108 * no intention of processing the Rx frame at this pointwe are
Justin P. Mattock70f23fd2011-05-10 10:16:21 +02007109 * just setting the ownership bit of rxd in Each Rx
Ananda Raju5d3213c2006-04-21 19:23:26 -04007110 * ring to HW and set the appropriate buffer size
7111 * based on the ring mode
7112 */
7113 rxd_owner_bit_reset(sp);
7114
Linus Torvalds1da177e2005-04-16 15:20:36 -07007115 val64 = readq(&bar0->adapter_status);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007116 if (verify_xena_quiescence(sp)) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007117 if (verify_pcc_quiescent(sp, sp->device_enabled_once))
7118 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007119 }
7120
7121 msleep(50);
7122 cnt++;
7123 if (cnt == 10) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007124 DBG_PRINT(ERR_DBG, "Device not Quiescent - "
7125 "adapter status reads 0x%llx\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00007126 (unsigned long long)val64);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007127 break;
7128 }
Linas Vepstasd796fdb2007-05-14 18:37:30 -05007129 }
7130 if (do_io)
7131 s2io_reset(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007132
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07007133 /* Free all Tx buffers */
7134 free_tx_buffers(sp);
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07007135
7136 /* Free all Rx buffers */
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07007137 free_rx_buffers(sp);
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07007138
Sivakumar Subramani92b84432007-09-06 06:51:14 -04007139 clear_bit(__S2IO_STATE_LINK_TASK, &(sp->state));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007140}
7141
Joe Perchesd44570e2009-08-24 17:29:44 +00007142static void s2io_card_down(struct s2io_nic *sp)
Linas Vepstasd796fdb2007-05-14 18:37:30 -05007143{
7144 do_s2io_card_down(sp, 1);
7145}
7146
Joe Perchesd44570e2009-08-24 17:29:44 +00007147static int s2io_card_up(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007148{
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04007149 int i, ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007150 struct config_param *config;
Joe Perchesffb5df62009-08-24 17:29:47 +00007151 struct mac_info *mac_control;
Joe Perchesd44570e2009-08-24 17:29:44 +00007152 struct net_device *dev = (struct net_device *)sp->dev;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007153 u16 interruptible;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007154
7155 /* Initialize the H/W I/O registers */
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05007156 ret = init_nic(sp);
7157 if (ret != 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007158 DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n",
7159 dev->name);
Sreenivasa Honnur9f74ffd2007-11-30 01:46:08 -05007160 if (ret != -EIO)
7161 s2io_reset(sp);
7162 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007163 }
7164
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007165 /*
7166 * Initializing the Rx buffers. For now we are considering only 1
Linus Torvalds1da177e2005-04-16 15:20:36 -07007167 * Rx ring and initializing buffers into 30 Rx blocks
7168 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07007169 config = &sp->config;
Joe Perchesffb5df62009-08-24 17:29:47 +00007170 mac_control = &sp->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007171
7172 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007173 struct ring_info *ring = &mac_control->rings[i];
7174
7175 ring->mtu = dev->mtu;
Amerigo Wangf0c54ac2010-08-25 00:23:39 +00007176 ring->lro = !!(dev->features & NETIF_F_LRO);
Joe Perches13d866a2009-08-24 17:29:41 +00007177 ret = fill_rx_buffers(sp, ring, 1);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007178 if (ret) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007179 DBG_PRINT(ERR_DBG, "%s: Out of memory in Open\n",
7180 dev->name);
7181 s2io_reset(sp);
7182 free_rx_buffers(sp);
7183 return -ENOMEM;
7184 }
7185 DBG_PRINT(INFO_DBG, "Buf in ring:%d is %d:\n", i,
Joe Perches13d866a2009-08-24 17:29:41 +00007186 ring->rx_bufs_left);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007187 }
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007188
7189 /* Initialise napi */
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007190 if (config->napi) {
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007191 if (config->intr_type == MSI_X) {
7192 for (i = 0; i < sp->config.rx_ring_num; i++)
7193 napi_enable(&sp->mac_control.rings[i].napi);
7194 } else {
7195 napi_enable(&sp->napi);
7196 }
7197 }
Sreenivasa Honnur5f490c92008-01-14 20:23:04 -05007198
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007199 /* Maintain the state prior to the open */
7200 if (sp->promisc_flg)
7201 sp->promisc_flg = 0;
7202 if (sp->m_cast_flg) {
7203 sp->m_cast_flg = 0;
Joe Perchesd44570e2009-08-24 17:29:44 +00007204 sp->all_multi_pos = 0;
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007205 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007206
7207 /* Setting its receive mode */
7208 s2io_set_multicast(dev);
7209
Amerigo Wangf0c54ac2010-08-25 00:23:39 +00007210 if (dev->features & NETIF_F_LRO) {
Ananda Rajub41477f2006-07-24 19:52:49 -04007211 /* Initialize max aggregatable pkts per session based on MTU */
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007212 sp->lro_max_aggr_per_sess = ((1<<16) - 1) / dev->mtu;
Joe Perchesd44570e2009-08-24 17:29:44 +00007213 /* Check if we can use (if specified) user provided value */
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007214 if (lro_max_pkts < sp->lro_max_aggr_per_sess)
7215 sp->lro_max_aggr_per_sess = lro_max_pkts;
7216 }
7217
Linus Torvalds1da177e2005-04-16 15:20:36 -07007218 /* Enable Rx Traffic and interrupts on the NIC */
7219 if (start_nic(sp)) {
7220 DBG_PRINT(ERR_DBG, "%s: Starting NIC failed\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007221 s2io_reset(sp);
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007222 free_rx_buffers(sp);
7223 return -ENODEV;
7224 }
7225
7226 /* Add interrupt service routine */
7227 if (s2io_add_isr(sp) != 0) {
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007228 if (sp->config.intr_type == MSI_X)
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007229 s2io_rem_isr(sp);
7230 s2io_reset(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007231 free_rx_buffers(sp);
7232 return -ENODEV;
7233 }
7234
raghavendra.koushik@neterion.com25fff882005-08-03 12:34:11 -07007235 S2IO_TIMER_CONF(sp->alarm_timer, s2io_alarm_handle, sp, (HZ/2));
7236
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04007237 set_bit(__S2IO_STATE_CARD_UP, &sp->state);
7238
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007239 /* Enable select interrupts */
Sivakumar Subramani9caab452007-09-06 06:21:54 -04007240 en_dis_err_alarms(sp, ENA_ALL_INTRS, ENABLE_INTRS);
Sreenivasa Honnur01e16fa2008-07-09 23:49:21 -04007241 if (sp->config.intr_type != INTA) {
7242 interruptible = TX_TRAFFIC_INTR | TX_PIC_INTR;
7243 en_dis_able_nic_intrs(sp, interruptible, ENABLE_INTRS);
7244 } else {
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007245 interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR;
Sivakumar Subramani9caab452007-09-06 06:21:54 -04007246 interruptible |= TX_PIC_INTR;
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007247 en_dis_able_nic_intrs(sp, interruptible, ENABLE_INTRS);
7248 }
7249
Linus Torvalds1da177e2005-04-16 15:20:36 -07007250 return 0;
7251}
7252
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007253/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07007254 * s2io_restart_nic - Resets the NIC.
7255 * @data : long pointer to the device private structure
7256 * Description:
7257 * This function is scheduled to be run by the s2io_tx_watchdog
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007258 * function after 0.5 secs to reset the NIC. The idea is to reduce
Linus Torvalds1da177e2005-04-16 15:20:36 -07007259 * the run time of the watch dog routine which is run holding a
7260 * spin lock.
7261 */
7262
David Howellsc4028952006-11-22 14:57:56 +00007263static void s2io_restart_nic(struct work_struct *work)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007264{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007265 struct s2io_nic *sp = container_of(work, struct s2io_nic, rst_timer_task);
David Howellsc4028952006-11-22 14:57:56 +00007266 struct net_device *dev = sp->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007267
Francois Romieu22747d62007-02-15 23:37:50 +01007268 rtnl_lock();
7269
7270 if (!netif_running(dev))
7271 goto out_unlock;
7272
Ananda Rajue6a8fee2006-07-06 23:58:23 -07007273 s2io_card_down(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007274 if (s2io_card_up(sp)) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007275 DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007276 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007277 s2io_wake_all_tx_queue(sp);
Joe Perchesd44570e2009-08-24 17:29:44 +00007278 DBG_PRINT(ERR_DBG, "%s: was reset by Tx watchdog timer\n", dev->name);
Francois Romieu22747d62007-02-15 23:37:50 +01007279out_unlock:
7280 rtnl_unlock();
Linus Torvalds1da177e2005-04-16 15:20:36 -07007281}
7282
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007283/**
7284 * s2io_tx_watchdog - Watchdog for transmit side.
Linus Torvalds1da177e2005-04-16 15:20:36 -07007285 * @dev : Pointer to net device structure
7286 * Description:
7287 * This function is triggered if the Tx Queue is stopped
7288 * for a pre-defined amount of time when the Interface is still up.
7289 * If the Interface is jammed in such a situation, the hardware is
7290 * reset (by s2io_close) and restarted again (by s2io_open) to
7291 * overcome any problem that might have been caused in the hardware.
7292 * Return value:
7293 * void
7294 */
7295
7296static void s2io_tx_watchdog(struct net_device *dev)
7297{
Wang Chen4cf16532008-11-12 23:38:14 -08007298 struct s2io_nic *sp = netdev_priv(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00007299 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007300
7301 if (netif_carrier_ok(dev)) {
Joe Perchesffb5df62009-08-24 17:29:47 +00007302 swstats->watchdog_timer_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007303 schedule_work(&sp->rst_timer_task);
Joe Perchesffb5df62009-08-24 17:29:47 +00007304 swstats->soft_reset_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007305 }
7306}
7307
7308/**
7309 * rx_osm_handler - To perform some OS related operations on SKB.
7310 * @sp: private member of the device structure,pointer to s2io_nic structure.
7311 * @skb : the socket buffer pointer.
7312 * @len : length of the packet
7313 * @cksum : FCS checksum of the frame.
7314 * @ring_no : the ring from which this RxD was extracted.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007315 * Description:
Ananda Rajub41477f2006-07-24 19:52:49 -04007316 * This function is called by the Rx interrupt serivce routine to perform
Linus Torvalds1da177e2005-04-16 15:20:36 -07007317 * some OS related operations on the SKB before passing it to the upper
7318 * layers. It mainly checks if the checksum is OK, if so adds it to the
7319 * SKBs cksum variable, increments the Rx packet count and passes the SKB
7320 * to the upper layer. If the checksum is wrong, it increments the Rx
7321 * packet error count, frees the SKB and returns error.
7322 * Return value:
7323 * SUCCESS on success and -1 on failure.
7324 */
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007325static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007326{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007327 struct s2io_nic *sp = ring_data->nic;
Joe Perchesd44570e2009-08-24 17:29:44 +00007328 struct net_device *dev = (struct net_device *)ring_data->dev;
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007329 struct sk_buff *skb = (struct sk_buff *)
Joe Perchesd44570e2009-08-24 17:29:44 +00007330 ((unsigned long)rxdp->Host_Control);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007331 int ring_no = ring_data->ring_no;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007332 u16 l3_csum, l4_csum;
Ananda Raju863c11a2006-04-21 19:03:13 -04007333 unsigned long long err = rxdp->Control_1 & RXD_T_CODE;
Ingo Molnar2e6a6842008-11-25 16:47:35 -08007334 struct lro *uninitialized_var(lro);
Olaf Heringf9046eb2007-06-19 22:41:10 +02007335 u8 err_mask;
Joe Perchesffb5df62009-08-24 17:29:47 +00007336 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007337
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007338 skb->dev = dev;
Ananda Rajuc92ca042006-04-21 19:18:03 -04007339
Ananda Raju863c11a2006-04-21 19:03:13 -04007340 if (err) {
Ananda Rajubd1034f2006-04-21 19:20:22 -04007341 /* Check for parity error */
Joe Perchesd44570e2009-08-24 17:29:44 +00007342 if (err & 0x1)
Joe Perchesffb5df62009-08-24 17:29:47 +00007343 swstats->parity_err_cnt++;
Joe Perchesd44570e2009-08-24 17:29:44 +00007344
Olaf Heringf9046eb2007-06-19 22:41:10 +02007345 err_mask = err >> 48;
Joe Perchesd44570e2009-08-24 17:29:44 +00007346 switch (err_mask) {
7347 case 1:
Joe Perchesffb5df62009-08-24 17:29:47 +00007348 swstats->rx_parity_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007349 break;
Ananda Rajubd1034f2006-04-21 19:20:22 -04007350
Joe Perchesd44570e2009-08-24 17:29:44 +00007351 case 2:
Joe Perchesffb5df62009-08-24 17:29:47 +00007352 swstats->rx_abort_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007353 break;
7354
Joe Perchesd44570e2009-08-24 17:29:44 +00007355 case 3:
Joe Perchesffb5df62009-08-24 17:29:47 +00007356 swstats->rx_parity_abort_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007357 break;
7358
Joe Perchesd44570e2009-08-24 17:29:44 +00007359 case 4:
Joe Perchesffb5df62009-08-24 17:29:47 +00007360 swstats->rx_rda_fail_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007361 break;
7362
Joe Perchesd44570e2009-08-24 17:29:44 +00007363 case 5:
Joe Perchesffb5df62009-08-24 17:29:47 +00007364 swstats->rx_unkn_prot_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007365 break;
7366
Joe Perchesd44570e2009-08-24 17:29:44 +00007367 case 6:
Joe Perchesffb5df62009-08-24 17:29:47 +00007368 swstats->rx_fcs_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007369 break;
7370
Joe Perchesd44570e2009-08-24 17:29:44 +00007371 case 7:
Joe Perchesffb5df62009-08-24 17:29:47 +00007372 swstats->rx_buf_size_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007373 break;
7374
Joe Perchesd44570e2009-08-24 17:29:44 +00007375 case 8:
Joe Perchesffb5df62009-08-24 17:29:47 +00007376 swstats->rx_rxd_corrupt_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007377 break;
7378
Joe Perchesd44570e2009-08-24 17:29:44 +00007379 case 15:
Joe Perchesffb5df62009-08-24 17:29:47 +00007380 swstats->rx_unkn_err_cnt++;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007381 break;
7382 }
Ananda Raju863c11a2006-04-21 19:03:13 -04007383 /*
Joe Perchesd44570e2009-08-24 17:29:44 +00007384 * Drop the packet if bad transfer code. Exception being
7385 * 0x5, which could be due to unsupported IPv6 extension header.
7386 * In this case, we let stack handle the packet.
7387 * Note that in this case, since checksum will be incorrect,
7388 * stack will validate the same.
7389 */
Olaf Heringf9046eb2007-06-19 22:41:10 +02007390 if (err_mask != 0x5) {
7391 DBG_PRINT(ERR_DBG, "%s: Rx error Value: 0x%x\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00007392 dev->name, err_mask);
Breno Leitaodc56e6342008-07-22 16:27:20 -03007393 dev->stats.rx_crc_errors++;
Joe Perchesffb5df62009-08-24 17:29:47 +00007394 swstats->mem_freed
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007395 += skb->truesize;
Ananda Raju863c11a2006-04-21 19:03:13 -04007396 dev_kfree_skb(skb);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007397 ring_data->rx_bufs_left -= 1;
Ananda Raju863c11a2006-04-21 19:03:13 -04007398 rxdp->Host_Control = 0;
7399 return 0;
7400 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007401 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007402
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007403 rxdp->Host_Control = 0;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007404 if (sp->rxd_mode == RXD_MODE_1) {
7405 int len = RXD_GET_BUFFER0_SIZE_1(rxdp->Control_2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007406
Ananda Rajuda6971d2005-10-31 16:55:31 -05007407 skb_put(skb, len);
Veena Parat6d517a22007-07-23 02:20:51 -04007408 } else if (sp->rxd_mode == RXD_MODE_3B) {
Ananda Rajuda6971d2005-10-31 16:55:31 -05007409 int get_block = ring_data->rx_curr_get_info.block_index;
7410 int get_off = ring_data->rx_curr_get_info.offset;
7411 int buf0_len = RXD_GET_BUFFER0_SIZE_3(rxdp->Control_2);
7412 int buf2_len = RXD_GET_BUFFER2_SIZE_3(rxdp->Control_2);
7413 unsigned char *buff = skb_push(skb, buf0_len);
7414
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007415 struct buffAdd *ba = &ring_data->ba[get_block][get_off];
Ananda Rajuda6971d2005-10-31 16:55:31 -05007416 memcpy(buff, ba->ba_0, buf0_len);
Veena Parat6d517a22007-07-23 02:20:51 -04007417 skb_put(skb, buf2_len);
Ananda Rajuda6971d2005-10-31 16:55:31 -05007418 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007419
Joe Perchesd44570e2009-08-24 17:29:44 +00007420 if ((rxdp->Control_1 & TCP_OR_UDP_FRAME) &&
7421 ((!ring_data->lro) ||
7422 (ring_data->lro && (!(rxdp->Control_1 & RXD_FRAME_IP_FRAG)))) &&
Michał Mirosławb437a8c2011-04-18 13:31:20 +00007423 (dev->features & NETIF_F_RXCSUM)) {
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007424 l3_csum = RXD_GET_L3_CKSUM(rxdp->Control_1);
7425 l4_csum = RXD_GET_L4_CKSUM(rxdp->Control_1);
7426 if ((l3_csum == L3_CKSUM_OK) && (l4_csum == L4_CKSUM_OK)) {
7427 /*
7428 * NIC verifies if the Checksum of the received
7429 * frame is Ok or not and accordingly returns
7430 * a flag in the RxD.
7431 */
7432 skb->ip_summed = CHECKSUM_UNNECESSARY;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007433 if (ring_data->lro) {
Shan Wei06f0c132011-03-04 01:23:58 +00007434 u32 tcp_len = 0;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007435 u8 *tcp;
7436 int ret = 0;
7437
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007438 ret = s2io_club_tcp_session(ring_data,
Joe Perchesd44570e2009-08-24 17:29:44 +00007439 skb->data, &tcp,
7440 &tcp_len, &lro,
7441 rxdp, sp);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007442 switch (ret) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007443 case 3: /* Begin anew */
7444 lro->parent = skb;
7445 goto aggregate;
7446 case 1: /* Aggregate */
7447 lro_append_pkt(sp, lro, skb, tcp_len);
7448 goto aggregate;
7449 case 4: /* Flush session */
7450 lro_append_pkt(sp, lro, skb, tcp_len);
7451 queue_rx_frame(lro->parent,
7452 lro->vlan_tag);
7453 clear_lro_session(lro);
Joe Perchesffb5df62009-08-24 17:29:47 +00007454 swstats->flush_max_pkts++;
Joe Perchesd44570e2009-08-24 17:29:44 +00007455 goto aggregate;
7456 case 2: /* Flush both */
7457 lro->parent->data_len = lro->frags_len;
Joe Perchesffb5df62009-08-24 17:29:47 +00007458 swstats->sending_both++;
Joe Perchesd44570e2009-08-24 17:29:44 +00007459 queue_rx_frame(lro->parent,
7460 lro->vlan_tag);
7461 clear_lro_session(lro);
7462 goto send_up;
7463 case 0: /* sessions exceeded */
7464 case -1: /* non-TCP or not L2 aggregatable */
7465 case 5: /*
7466 * First pkt in session not
7467 * L3/L4 aggregatable
7468 */
7469 break;
7470 default:
7471 DBG_PRINT(ERR_DBG,
7472 "%s: Samadhana!!\n",
7473 __func__);
7474 BUG();
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007475 }
7476 }
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007477 } else {
7478 /*
7479 * Packet with erroneous checksum, let the
7480 * upper layers deal with it.
7481 */
Eric Dumazetbc8acf22010-09-02 13:07:41 -07007482 skb_checksum_none_assert(skb);
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007483 }
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05007484 } else
Eric Dumazetbc8acf22010-09-02 13:07:41 -07007485 skb_checksum_none_assert(skb);
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05007486
Joe Perchesffb5df62009-08-24 17:29:47 +00007487 swstats->mem_freed += skb->truesize;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007488send_up:
David S. Miller0c8dfc82009-01-27 16:22:32 -08007489 skb_record_rx_queue(skb, ring_no);
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05007490 queue_rx_frame(skb, RXD_GET_VLAN_TAG(rxdp->Control_2));
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05007491aggregate:
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007492 sp->mac_control.rings[ring_no].rx_bufs_left -= 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007493 return SUCCESS;
7494}
7495
7496/**
7497 * s2io_link - stops/starts the Tx queue.
7498 * @sp : private member of the device structure, which is a pointer to the
7499 * s2io_nic structure.
7500 * @link : inidicates whether link is UP/DOWN.
7501 * Description:
7502 * This function stops/starts the Tx queue depending on whether the link
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007503 * status of the NIC is is down or up. This is called by the Alarm
7504 * interrupt handler whenever a link change interrupt comes up.
Linus Torvalds1da177e2005-04-16 15:20:36 -07007505 * Return value:
7506 * void.
7507 */
7508
Joe Perchesd44570e2009-08-24 17:29:44 +00007509static void s2io_link(struct s2io_nic *sp, int link)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007510{
Joe Perchesd44570e2009-08-24 17:29:44 +00007511 struct net_device *dev = (struct net_device *)sp->dev;
Joe Perchesffb5df62009-08-24 17:29:47 +00007512 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007513
7514 if (link != sp->last_link_state) {
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08007515 init_tti(sp, link);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007516 if (link == LINK_DOWN) {
7517 DBG_PRINT(ERR_DBG, "%s: Link down\n", dev->name);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007518 s2io_stop_all_tx_queue(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007519 netif_carrier_off(dev);
Joe Perchesffb5df62009-08-24 17:29:47 +00007520 if (swstats->link_up_cnt)
7521 swstats->link_up_time =
7522 jiffies - sp->start_time;
7523 swstats->link_down_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007524 } else {
7525 DBG_PRINT(ERR_DBG, "%s: Link Up\n", dev->name);
Joe Perchesffb5df62009-08-24 17:29:47 +00007526 if (swstats->link_down_cnt)
7527 swstats->link_down_time =
Joe Perchesd44570e2009-08-24 17:29:44 +00007528 jiffies - sp->start_time;
Joe Perchesffb5df62009-08-24 17:29:47 +00007529 swstats->link_up_cnt++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007530 netif_carrier_on(dev);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007531 s2io_wake_all_tx_queue(sp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007532 }
7533 }
7534 sp->last_link_state = link;
Sreenivasa Honnur491976b2007-05-10 04:22:25 -04007535 sp->start_time = jiffies;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007536}
7537
7538/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007539 * s2io_init_pci -Initialization of PCI and PCI-X configuration registers .
7540 * @sp : private member of the device structure, which is a pointer to the
Linus Torvalds1da177e2005-04-16 15:20:36 -07007541 * s2io_nic structure.
7542 * Description:
7543 * This function initializes a few of the PCI and PCI-X configuration registers
7544 * with recommended values.
7545 * Return value:
7546 * void
7547 */
7548
Joe Perchesd44570e2009-08-24 17:29:44 +00007549static void s2io_init_pci(struct s2io_nic *sp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007550{
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007551 u16 pci_cmd = 0, pcix_cmd = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007552
7553 /* Enable Data Parity Error Recovery in PCI-X command register. */
7554 pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER,
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007555 &(pcix_cmd));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007556 pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER,
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007557 (pcix_cmd | 1));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007558 pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER,
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007559 &(pcix_cmd));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007560
7561 /* Set the PErr Response bit in PCI command register. */
7562 pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd);
7563 pci_write_config_word(sp->pdev, PCI_COMMAND,
7564 (pci_cmd | PCI_COMMAND_PARITY));
7565 pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007566}
7567
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007568static int s2io_verify_parm(struct pci_dev *pdev, u8 *dev_intr_type,
Joe Perchesd44570e2009-08-24 17:29:44 +00007569 u8 *dev_multiq)
Ananda Raju9dc737a2006-04-21 19:05:41 -04007570{
Jon Mason1853e2e2010-12-10 15:40:01 +00007571 int i;
7572
Joe Perchesd44570e2009-08-24 17:29:44 +00007573 if ((tx_fifo_num > MAX_TX_FIFOS) || (tx_fifo_num < 1)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007574 DBG_PRINT(ERR_DBG, "Requested number of tx fifos "
Joe Perchesd44570e2009-08-24 17:29:44 +00007575 "(%d) not supported\n", tx_fifo_num);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007576
7577 if (tx_fifo_num < 1)
7578 tx_fifo_num = 1;
7579 else
7580 tx_fifo_num = MAX_TX_FIFOS;
7581
Joe Perches9e39f7c2009-08-25 08:52:00 +00007582 DBG_PRINT(ERR_DBG, "Default to %d tx fifos\n", tx_fifo_num);
Ananda Raju9dc737a2006-04-21 19:05:41 -04007583 }
Surjit Reang2fda0962008-01-24 02:08:59 -08007584
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007585 if (multiq)
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007586 *dev_multiq = multiq;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007587
7588 if (tx_steering_type && (1 == tx_fifo_num)) {
7589 if (tx_steering_type != TX_DEFAULT_STEERING)
7590 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00007591 "Tx steering is not supported with "
Joe Perchesd44570e2009-08-24 17:29:44 +00007592 "one fifo. Disabling Tx steering.\n");
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007593 tx_steering_type = NO_STEERING;
7594 }
7595
7596 if ((tx_steering_type < NO_STEERING) ||
Joe Perchesd44570e2009-08-24 17:29:44 +00007597 (tx_steering_type > TX_DEFAULT_STEERING)) {
7598 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00007599 "Requested transmit steering not supported\n");
7600 DBG_PRINT(ERR_DBG, "Disabling transmit steering\n");
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007601 tx_steering_type = NO_STEERING;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007602 }
7603
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007604 if (rx_ring_num > MAX_RX_RINGS) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007605 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00007606 "Requested number of rx rings not supported\n");
7607 DBG_PRINT(ERR_DBG, "Default to %d rx rings\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00007608 MAX_RX_RINGS);
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007609 rx_ring_num = MAX_RX_RINGS;
Ananda Raju9dc737a2006-04-21 19:05:41 -04007610 }
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007611
Veena Parateccb8622007-07-23 02:23:54 -04007612 if ((*dev_intr_type != INTA) && (*dev_intr_type != MSI_X)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007613 DBG_PRINT(ERR_DBG, "Wrong intr_type requested. "
Ananda Raju9dc737a2006-04-21 19:05:41 -04007614 "Defaulting to INTA\n");
7615 *dev_intr_type = INTA;
7616 }
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07007617
Ananda Raju9dc737a2006-04-21 19:05:41 -04007618 if ((*dev_intr_type == MSI_X) &&
Joe Perchesd44570e2009-08-24 17:29:44 +00007619 ((pdev->device != PCI_DEVICE_ID_HERC_WIN) &&
7620 (pdev->device != PCI_DEVICE_ID_HERC_UNI))) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007621 DBG_PRINT(ERR_DBG, "Xframe I does not support MSI_X. "
Joe Perchesd44570e2009-08-24 17:29:44 +00007622 "Defaulting to INTA\n");
Ananda Raju9dc737a2006-04-21 19:05:41 -04007623 *dev_intr_type = INTA;
7624 }
Sivakumar Subramanifb6a8252007-02-24 01:51:50 -05007625
Veena Parat6d517a22007-07-23 02:20:51 -04007626 if ((rx_ring_mode != 1) && (rx_ring_mode != 2)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007627 DBG_PRINT(ERR_DBG, "Requested ring mode not supported\n");
7628 DBG_PRINT(ERR_DBG, "Defaulting to 1-buffer mode\n");
Veena Parat6d517a22007-07-23 02:20:51 -04007629 rx_ring_mode = 1;
Ananda Raju9dc737a2006-04-21 19:05:41 -04007630 }
Jon Mason1853e2e2010-12-10 15:40:01 +00007631
7632 for (i = 0; i < MAX_RX_RINGS; i++)
7633 if (rx_ring_sz[i] > MAX_RX_BLOCKS_PER_RING) {
7634 DBG_PRINT(ERR_DBG, "Requested rx ring size not "
7635 "supported\nDefaulting to %d\n",
7636 MAX_RX_BLOCKS_PER_RING);
7637 rx_ring_sz[i] = MAX_RX_BLOCKS_PER_RING;
7638 }
7639
Ananda Raju9dc737a2006-04-21 19:05:41 -04007640 return SUCCESS;
7641}
7642
Linus Torvalds1da177e2005-04-16 15:20:36 -07007643/**
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05007644 * rts_ds_steer - Receive traffic steering based on IPv4 or IPv6 TOS
7645 * or Traffic class respectively.
Ramkrishna Vepab7c56782007-12-17 11:40:15 -08007646 * @nic: device private variable
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05007647 * Description: The function configures the receive steering to
7648 * desired receive ring.
7649 * Return Value: SUCCESS on success and
7650 * '-1' on failure (endian settings incorrect).
7651 */
7652static int rts_ds_steer(struct s2io_nic *nic, u8 ds_codepoint, u8 ring)
7653{
7654 struct XENA_dev_config __iomem *bar0 = nic->bar0;
7655 register u64 val64 = 0;
7656
7657 if (ds_codepoint > 63)
7658 return FAILURE;
7659
7660 val64 = RTS_DS_MEM_DATA(ring);
7661 writeq(val64, &bar0->rts_ds_mem_data);
7662
7663 val64 = RTS_DS_MEM_CTRL_WE |
7664 RTS_DS_MEM_CTRL_STROBE_NEW_CMD |
7665 RTS_DS_MEM_CTRL_OFFSET(ds_codepoint);
7666
7667 writeq(val64, &bar0->rts_ds_mem_ctrl);
7668
7669 return wait_for_cmd_complete(&bar0->rts_ds_mem_ctrl,
Joe Perchesd44570e2009-08-24 17:29:44 +00007670 RTS_DS_MEM_CTRL_STROBE_CMD_BEING_EXECUTED,
7671 S2IO_BIT_RESET);
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05007672}
7673
Stephen Hemminger04025092008-11-21 17:28:55 -08007674static const struct net_device_ops s2io_netdev_ops = {
7675 .ndo_open = s2io_open,
7676 .ndo_stop = s2io_close,
7677 .ndo_get_stats = s2io_get_stats,
7678 .ndo_start_xmit = s2io_xmit,
7679 .ndo_validate_addr = eth_validate_addr,
Jiri Pirkoafc4b132011-08-16 06:29:01 +00007680 .ndo_set_rx_mode = s2io_set_multicast,
Stephen Hemminger04025092008-11-21 17:28:55 -08007681 .ndo_do_ioctl = s2io_ioctl,
7682 .ndo_set_mac_address = s2io_set_mac_addr,
7683 .ndo_change_mtu = s2io_change_mtu,
Michał Mirosławb437a8c2011-04-18 13:31:20 +00007684 .ndo_set_features = s2io_set_features,
Stephen Hemminger04025092008-11-21 17:28:55 -08007685 .ndo_tx_timeout = s2io_tx_watchdog,
7686#ifdef CONFIG_NET_POLL_CONTROLLER
7687 .ndo_poll_controller = s2io_netpoll,
7688#endif
7689};
7690
Sivakumar Subramani9fc93a42007-02-24 01:57:32 -05007691/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007692 * s2io_init_nic - Initialization of the adapter .
Linus Torvalds1da177e2005-04-16 15:20:36 -07007693 * @pdev : structure containing the PCI related information of the device.
7694 * @pre: List of PCI devices supported by the driver listed in s2io_tbl.
7695 * Description:
7696 * The function initializes an adapter identified by the pci_dec structure.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007697 * All OS related initialization including memory and device structure and
7698 * initlaization of the device private variable is done. Also the swapper
7699 * control register is initialized to enable read and write into the I/O
Linus Torvalds1da177e2005-04-16 15:20:36 -07007700 * registers of the device.
7701 * Return value:
7702 * returns 0 on success and negative on failure.
7703 */
7704
7705static int __devinit
7706s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
7707{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007708 struct s2io_nic *sp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007709 struct net_device *dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007710 int i, j, ret;
Tobias Klauserf957bcf2009-06-04 23:07:59 +00007711 int dma_flag = false;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007712 u32 mac_up, mac_down;
7713 u64 val64 = 0, tmp64 = 0;
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05007714 struct XENA_dev_config __iomem *bar0 = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007715 u16 subid;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007716 struct config_param *config;
Joe Perchesffb5df62009-08-24 17:29:47 +00007717 struct mac_info *mac_control;
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007718 int mode;
Ravinandan Arakalicc6e7c42005-10-04 06:41:24 -04007719 u8 dev_intr_type = intr_type;
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007720 u8 dev_multiq = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007721
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007722 ret = s2io_verify_parm(pdev, &dev_intr_type, &dev_multiq);
7723 if (ret)
Ananda Raju9dc737a2006-04-21 19:05:41 -04007724 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007725
Joe Perchesd44570e2009-08-24 17:29:44 +00007726 ret = pci_enable_device(pdev);
7727 if (ret) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007728 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00007729 "%s: pci_enable_device failed\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007730 return ret;
7731 }
7732
Yang Hongyang6a355282009-04-06 19:01:13 -07007733 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007734 DBG_PRINT(INIT_DBG, "%s: Using 64bit DMA\n", __func__);
Tobias Klauserf957bcf2009-06-04 23:07:59 +00007735 dma_flag = true;
Joe Perchesd44570e2009-08-24 17:29:44 +00007736 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007737 DBG_PRINT(ERR_DBG,
Joe Perchesd44570e2009-08-24 17:29:44 +00007738 "Unable to obtain 64bit DMA "
7739 "for consistent allocations\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07007740 pci_disable_device(pdev);
7741 return -ENOMEM;
7742 }
Yang Hongyang284901a2009-04-06 19:01:15 -07007743 } else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007744 DBG_PRINT(INIT_DBG, "%s: Using 32bit DMA\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007745 } else {
7746 pci_disable_device(pdev);
7747 return -ENOMEM;
7748 }
Joe Perchesd44570e2009-08-24 17:29:44 +00007749 ret = pci_request_regions(pdev, s2io_driver_name);
7750 if (ret) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007751 DBG_PRINT(ERR_DBG, "%s: Request Regions failed - %x\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00007752 __func__, ret);
Veena Parateccb8622007-07-23 02:23:54 -04007753 pci_disable_device(pdev);
7754 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007755 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007756 if (dev_multiq)
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007757 dev = alloc_etherdev_mq(sizeof(struct s2io_nic), tx_fifo_num);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007758 else
David S. Millerb19fa1f2008-07-08 23:14:24 -07007759 dev = alloc_etherdev(sizeof(struct s2io_nic));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007760 if (dev == NULL) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007761 pci_disable_device(pdev);
7762 pci_release_regions(pdev);
7763 return -ENODEV;
7764 }
7765
7766 pci_set_master(pdev);
7767 pci_set_drvdata(pdev, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007768 SET_NETDEV_DEV(dev, &pdev->dev);
7769
7770 /* Private member variable initialized to s2io NIC structure */
Wang Chen4cf16532008-11-12 23:38:14 -08007771 sp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007772 sp->dev = dev;
7773 sp->pdev = pdev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007774 sp->high_dma_flag = dma_flag;
Tobias Klauserf957bcf2009-06-04 23:07:59 +00007775 sp->device_enabled_once = false;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007776 if (rx_ring_mode == 1)
7777 sp->rxd_mode = RXD_MODE_1;
7778 if (rx_ring_mode == 2)
7779 sp->rxd_mode = RXD_MODE_3B;
Ananda Rajuda6971d2005-10-31 16:55:31 -05007780
Sivakumar Subramanieaae7f72007-09-15 14:14:22 -07007781 sp->config.intr_type = dev_intr_type;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007782
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007783 if ((pdev->device == PCI_DEVICE_ID_HERC_WIN) ||
Joe Perchesd44570e2009-08-24 17:29:44 +00007784 (pdev->device == PCI_DEVICE_ID_HERC_UNI))
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007785 sp->device_type = XFRAME_II_DEVICE;
7786 else
7787 sp->device_type = XFRAME_I_DEVICE;
7788
Jeff Garzik6aa20a22006-09-13 13:24:59 -04007789
Linus Torvalds1da177e2005-04-16 15:20:36 -07007790 /* Initialize some PCI/PCI-X fields of the NIC. */
7791 s2io_init_pci(sp);
7792
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007793 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07007794 * Setting the device configuration parameters.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007795 * Most of these parameters can be specified by the user during
7796 * module insertion as they are module loadable parameters. If
7797 * these parameters are not not specified during load time, they
Linus Torvalds1da177e2005-04-16 15:20:36 -07007798 * are initialized with default values.
7799 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07007800 config = &sp->config;
Joe Perchesffb5df62009-08-24 17:29:47 +00007801 mac_control = &sp->mac_control;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007802
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07007803 config->napi = napi;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007804 config->tx_steering_type = tx_steering_type;
Sivakumar Subramani596c5c92007-09-15 14:24:03 -07007805
Linus Torvalds1da177e2005-04-16 15:20:36 -07007806 /* Tx side parameters. */
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007807 if (config->tx_steering_type == TX_PRIORITY_STEERING)
7808 config->tx_fifo_num = MAX_TX_FIFOS;
7809 else
7810 config->tx_fifo_num = tx_fifo_num;
7811
7812 /* Initialize the fifos used for tx steering */
7813 if (config->tx_fifo_num < 5) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007814 if (config->tx_fifo_num == 1)
7815 sp->total_tcp_fifos = 1;
7816 else
7817 sp->total_tcp_fifos = config->tx_fifo_num - 1;
7818 sp->udp_fifo_idx = config->tx_fifo_num - 1;
7819 sp->total_udp_fifos = 1;
7820 sp->other_fifo_idx = sp->total_tcp_fifos - 1;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007821 } else {
7822 sp->total_tcp_fifos = (tx_fifo_num - FIFO_UDP_MAX_NUM -
Joe Perchesd44570e2009-08-24 17:29:44 +00007823 FIFO_OTHER_MAX_NUM);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007824 sp->udp_fifo_idx = sp->total_tcp_fifos;
7825 sp->total_udp_fifos = FIFO_UDP_MAX_NUM;
7826 sp->other_fifo_idx = sp->udp_fifo_idx + FIFO_UDP_MAX_NUM;
7827 }
7828
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007829 config->multiq = dev_multiq;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007830 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007831 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
7832
7833 tx_cfg->fifo_len = tx_fifo_len[i];
7834 tx_cfg->fifo_priority = i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007835 }
7836
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007837 /* mapping the QoS priority to the configured fifos */
7838 for (i = 0; i < MAX_TX_FIFOS; i++)
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05007839 config->fifo_mapping[i] = fifo_map[config->tx_fifo_num - 1][i];
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07007840
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05007841 /* map the hashing selector table to the configured fifos */
7842 for (i = 0; i < config->tx_fifo_num; i++)
7843 sp->fifo_selector[i] = fifo_selector[i];
7844
7845
Linus Torvalds1da177e2005-04-16 15:20:36 -07007846 config->tx_intr_type = TXD_INT_TYPE_UTILZ;
7847 for (i = 0; i < config->tx_fifo_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007848 struct tx_fifo_config *tx_cfg = &config->tx_cfg[i];
7849
7850 tx_cfg->f_no_snoop = (NO_SNOOP_TXD | NO_SNOOP_TXD_BUFFER);
7851 if (tx_cfg->fifo_len < 65) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007852 config->tx_intr_type = TXD_INT_TYPE_PER_LIST;
7853 break;
7854 }
7855 }
Ananda Rajufed5ecc2005-11-14 15:25:08 -05007856 /* + 2 because one Txd for skb->data and one Txd for UFO */
7857 config->max_txds = MAX_SKB_FRAGS + 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007858
7859 /* Rx side parameters. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07007860 config->rx_ring_num = rx_ring_num;
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04007861 for (i = 0; i < config->rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007862 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
7863 struct ring_info *ring = &mac_control->rings[i];
7864
7865 rx_cfg->num_rxd = rx_ring_sz[i] * (rxd_count[sp->rxd_mode] + 1);
7866 rx_cfg->ring_priority = i;
7867 ring->rx_bufs_left = 0;
7868 ring->rxd_mode = sp->rxd_mode;
7869 ring->rxd_count = rxd_count[sp->rxd_mode];
7870 ring->pdev = sp->pdev;
7871 ring->dev = sp->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007872 }
7873
7874 for (i = 0; i < rx_ring_num; i++) {
Joe Perches13d866a2009-08-24 17:29:41 +00007875 struct rx_ring_config *rx_cfg = &config->rx_cfg[i];
7876
7877 rx_cfg->ring_org = RING_ORG_BUFF1;
7878 rx_cfg->f_no_snoop = (NO_SNOOP_RXD | NO_SNOOP_RXD_BUFFER);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007879 }
7880
7881 /* Setting Mac Control parameters */
7882 mac_control->rmac_pause_time = rmac_pause_time;
7883 mac_control->mc_pause_threshold_q0q3 = mc_pause_threshold_q0q3;
7884 mac_control->mc_pause_threshold_q4q7 = mc_pause_threshold_q4q7;
7885
7886
Linus Torvalds1da177e2005-04-16 15:20:36 -07007887 /* initialize the shared memory used by the NIC and the host */
7888 if (init_shared_mem(sp)) {
Joe Perchesd44570e2009-08-24 17:29:44 +00007889 DBG_PRINT(ERR_DBG, "%s: Memory allocation failed\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007890 ret = -ENOMEM;
7891 goto mem_alloc_failed;
7892 }
7893
Arjan van de Ven275f1652008-10-20 21:42:39 -07007894 sp->bar0 = pci_ioremap_bar(pdev, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007895 if (!sp->bar0) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007896 DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem1\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07007897 dev->name);
7898 ret = -ENOMEM;
7899 goto bar0_remap_failed;
7900 }
7901
Arjan van de Ven275f1652008-10-20 21:42:39 -07007902 sp->bar1 = pci_ioremap_bar(pdev, 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007903 if (!sp->bar1) {
Sivakumar Subramani19a60522007-01-31 13:30:49 -05007904 DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem2\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07007905 dev->name);
7906 ret = -ENOMEM;
7907 goto bar1_remap_failed;
7908 }
7909
Linus Torvalds1da177e2005-04-16 15:20:36 -07007910 /* Initializing the BAR1 address as the start of the FIFO pointer. */
7911 for (j = 0; j < MAX_TX_FIFOS; j++) {
Joe Perches43d620c2011-06-16 19:08:06 +00007912 mac_control->tx_FIFO_start[j] = sp->bar1 + (j * 0x00020000);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007913 }
7914
7915 /* Driver entry points */
Stephen Hemminger04025092008-11-21 17:28:55 -08007916 dev->netdev_ops = &s2io_netdev_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007917 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
Michał Mirosławb437a8c2011-04-18 13:31:20 +00007918 dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM |
7919 NETIF_F_TSO | NETIF_F_TSO6 |
7920 NETIF_F_RXCSUM | NETIF_F_LRO;
7921 dev->features |= dev->hw_features |
7922 NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
7923 if (sp->device_type & XFRAME_II_DEVICE) {
7924 dev->hw_features |= NETIF_F_UFO;
7925 if (ufo)
7926 dev->features |= NETIF_F_UFO;
7927 }
Tobias Klauserf957bcf2009-06-04 23:07:59 +00007928 if (sp->high_dma_flag == true)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007929 dev->features |= NETIF_F_HIGHDMA;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007930 dev->watchdog_timeo = WATCH_DOG_TIMEOUT;
David Howellsc4028952006-11-22 14:57:56 +00007931 INIT_WORK(&sp->rst_timer_task, s2io_restart_nic);
7932 INIT_WORK(&sp->set_link_task, s2io_set_link);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007933
ravinandan.arakali@neterion.come960fc52005-08-12 10:15:59 -07007934 pci_save_state(sp->pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007935
7936 /* Setting swapper control on the NIC, for proper reset operation */
7937 if (s2io_set_swapper(sp)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007938 DBG_PRINT(ERR_DBG, "%s: swapper settings are wrong\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07007939 dev->name);
7940 ret = -EAGAIN;
7941 goto set_swap_failed;
7942 }
7943
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007944 /* Verify if the Herc works on the slot its placed into */
7945 if (sp->device_type & XFRAME_II_DEVICE) {
7946 mode = s2io_verify_pci_mode(sp);
7947 if (mode < 0) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00007948 DBG_PRINT(ERR_DBG, "%s: Unsupported PCI bus mode\n",
7949 __func__);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007950 ret = -EBADSLT;
7951 goto set_swap_failed;
7952 }
7953 }
7954
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007955 if (sp->config.intr_type == MSI_X) {
7956 sp->num_entries = config->rx_ring_num + 1;
7957 ret = s2io_enable_msi_x(sp);
7958
7959 if (!ret) {
7960 ret = s2io_test_msi(sp);
7961 /* rollback MSI-X, will re-enable during add_isr() */
7962 remove_msix_isr(sp);
7963 }
7964 if (ret) {
7965
7966 DBG_PRINT(ERR_DBG,
Joe Perches9e39f7c2009-08-25 08:52:00 +00007967 "MSI-X requested but failed to enable\n");
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007968 sp->config.intr_type = INTA;
7969 }
7970 }
7971
7972 if (config->intr_type == MSI_X) {
Joe Perches13d866a2009-08-24 17:29:41 +00007973 for (i = 0; i < config->rx_ring_num ; i++) {
7974 struct ring_info *ring = &mac_control->rings[i];
7975
7976 netif_napi_add(dev, &ring->napi, s2io_poll_msix, 64);
7977 }
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04007978 } else {
7979 netif_napi_add(dev, &sp->napi, s2io_poll_inta, 64);
7980 }
7981
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07007982 /* Not needed for Herc */
7983 if (sp->device_type & XFRAME_I_DEVICE) {
7984 /*
7985 * Fix for all "FFs" MAC address problems observed on
7986 * Alpha platforms
7987 */
7988 fix_mac_address(sp);
7989 s2io_reset(sp);
7990 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007991
7992 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07007993 * MAC address initialization.
7994 * For now only one mac address will be read and used.
7995 */
7996 bar0 = sp->bar0;
7997 val64 = RMAC_ADDR_CMD_MEM_RD | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
Joe Perchesd44570e2009-08-24 17:29:44 +00007998 RMAC_ADDR_CMD_MEM_OFFSET(0 + S2IO_MAC_ADDR_START_OFFSET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007999 writeq(val64, &bar0->rmac_addr_cmd_mem);
Ananda Rajuc92ca042006-04-21 19:18:03 -04008000 wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
Joe Perchesd44570e2009-08-24 17:29:44 +00008001 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING,
8002 S2IO_BIT_RESET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008003 tmp64 = readq(&bar0->rmac_addr_data0_mem);
Joe Perchesd44570e2009-08-24 17:29:44 +00008004 mac_down = (u32)tmp64;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008005 mac_up = (u32) (tmp64 >> 32);
8006
Linus Torvalds1da177e2005-04-16 15:20:36 -07008007 sp->def_mac_addr[0].mac_addr[3] = (u8) (mac_up);
8008 sp->def_mac_addr[0].mac_addr[2] = (u8) (mac_up >> 8);
8009 sp->def_mac_addr[0].mac_addr[1] = (u8) (mac_up >> 16);
8010 sp->def_mac_addr[0].mac_addr[0] = (u8) (mac_up >> 24);
8011 sp->def_mac_addr[0].mac_addr[5] = (u8) (mac_down >> 16);
8012 sp->def_mac_addr[0].mac_addr[4] = (u8) (mac_down >> 24);
8013
Linus Torvalds1da177e2005-04-16 15:20:36 -07008014 /* Set the factory defined MAC address initially */
8015 dev->addr_len = ETH_ALEN;
8016 memcpy(dev->dev_addr, sp->def_mac_addr, ETH_ALEN);
Sivakumar Subramani2fd37682007-09-14 07:39:19 -04008017 memcpy(dev->perm_addr, dev->dev_addr, ETH_ALEN);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008018
Sreenivasa Honnurfaa4f792008-01-24 01:45:43 -08008019 /* initialize number of multicast & unicast MAC entries variables */
8020 if (sp->device_type == XFRAME_I_DEVICE) {
8021 config->max_mc_addr = S2IO_XENA_MAX_MC_ADDRESSES;
8022 config->max_mac_addr = S2IO_XENA_MAX_MAC_ADDRESSES;
8023 config->mc_start_offset = S2IO_XENA_MC_ADDR_START_OFFSET;
8024 } else if (sp->device_type == XFRAME_II_DEVICE) {
8025 config->max_mc_addr = S2IO_HERC_MAX_MC_ADDRESSES;
8026 config->max_mac_addr = S2IO_HERC_MAX_MAC_ADDRESSES;
8027 config->mc_start_offset = S2IO_HERC_MC_ADDR_START_OFFSET;
8028 }
8029
8030 /* store mac addresses from CAM to s2io_nic structure */
8031 do_s2io_store_unicast_mc(sp);
8032
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008033 /* Configure MSIX vector for number of rings configured plus one */
8034 if ((sp->device_type == XFRAME_II_DEVICE) &&
Joe Perchesd44570e2009-08-24 17:29:44 +00008035 (config->intr_type == MSI_X))
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008036 sp->num_entries = config->rx_ring_num + 1;
8037
Joe Perchesd44570e2009-08-24 17:29:44 +00008038 /* Store the values of the MSIX table in the s2io_nic structure */
Sivakumar Subramanic77dd432007-08-06 05:36:28 -04008039 store_xmsi_data(sp);
Ananda Rajub41477f2006-07-24 19:52:49 -04008040 /* reset Nic and bring it to known state */
8041 s2io_reset(sp);
8042
Linus Torvalds1da177e2005-04-16 15:20:36 -07008043 /*
Sreenivasa Honnur99993af2008-04-23 13:29:42 -04008044 * Initialize link state flags
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008045 * and the card state parameter
Linus Torvalds1da177e2005-04-16 15:20:36 -07008046 */
Sivakumar Subramani92b84432007-09-06 06:51:14 -04008047 sp->state = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008048
Linus Torvalds1da177e2005-04-16 15:20:36 -07008049 /* Initialize spinlocks */
Joe Perches13d866a2009-08-24 17:29:41 +00008050 for (i = 0; i < sp->config.tx_fifo_num; i++) {
8051 struct fifo_info *fifo = &mac_control->fifos[i];
8052
8053 spin_lock_init(&fifo->tx_lock);
8054 }
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05008055
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008056 /*
8057 * SXE-002: Configure link and activity LED to init state
8058 * on driver load.
Linus Torvalds1da177e2005-04-16 15:20:36 -07008059 */
8060 subid = sp->pdev->subsystem_device;
8061 if ((subid & 0xFF) >= 0x07) {
8062 val64 = readq(&bar0->gpio_control);
8063 val64 |= 0x0000800000000000ULL;
8064 writeq(val64, &bar0->gpio_control);
8065 val64 = 0x0411040400000000ULL;
Joe Perchesd44570e2009-08-24 17:29:44 +00008066 writeq(val64, (void __iomem *)bar0 + 0x2700);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008067 val64 = readq(&bar0->gpio_control);
8068 }
8069
8070 sp->rx_csum = 1; /* Rx chksum verify enabled by default */
8071
8072 if (register_netdev(dev)) {
8073 DBG_PRINT(ERR_DBG, "Device registration failed\n");
8074 ret = -ENODEV;
8075 goto register_failed;
8076 }
Ananda Raju9dc737a2006-04-21 19:05:41 -04008077 s2io_vpd_read(sp);
Jon Mason926bd902010-07-15 08:47:26 +00008078 DBG_PRINT(ERR_DBG, "Copyright(c) 2002-2010 Exar Corp.\n");
Joe Perchesd44570e2009-08-24 17:29:44 +00008079 DBG_PRINT(ERR_DBG, "%s: Neterion %s (rev %d)\n", dev->name,
Auke Kok44c10132007-06-08 15:46:36 -07008080 sp->product_name, pdev->revision);
Ananda Rajub41477f2006-07-24 19:52:49 -04008081 DBG_PRINT(ERR_DBG, "%s: Driver version %s\n", dev->name,
8082 s2io_driver_version);
Joe Perches9e39f7c2009-08-25 08:52:00 +00008083 DBG_PRINT(ERR_DBG, "%s: MAC Address: %pM\n", dev->name, dev->dev_addr);
8084 DBG_PRINT(ERR_DBG, "Serial number: %s\n", sp->serial_num);
Ananda Raju9dc737a2006-04-21 19:05:41 -04008085 if (sp->device_type & XFRAME_II_DEVICE) {
raghavendra.koushik@neterion.com0b1f7eb2005-08-03 12:39:56 -07008086 mode = s2io_print_pci_mode(sp);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008087 if (mode < 0) {
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008088 ret = -EBADSLT;
Ananda Raju9dc737a2006-04-21 19:05:41 -04008089 unregister_netdev(dev);
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008090 goto set_swap_failed;
8091 }
raghavendra.koushik@neterion.com541ae682005-08-03 12:36:55 -07008092 }
Joe Perchesd44570e2009-08-24 17:29:44 +00008093 switch (sp->rxd_mode) {
8094 case RXD_MODE_1:
8095 DBG_PRINT(ERR_DBG, "%s: 1-Buffer receive mode enabled\n",
8096 dev->name);
8097 break;
8098 case RXD_MODE_3B:
8099 DBG_PRINT(ERR_DBG, "%s: 2-Buffer receive mode enabled\n",
8100 dev->name);
8101 break;
Ananda Raju9dc737a2006-04-21 19:05:41 -04008102 }
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05008103
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008104 switch (sp->config.napi) {
8105 case 0:
8106 DBG_PRINT(ERR_DBG, "%s: NAPI disabled\n", dev->name);
8107 break;
8108 case 1:
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05008109 DBG_PRINT(ERR_DBG, "%s: NAPI enabled\n", dev->name);
Sreenivasa Honnurf61e0a32008-05-12 13:42:17 -04008110 break;
8111 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008112
8113 DBG_PRINT(ERR_DBG, "%s: Using %d Tx fifo(s)\n", dev->name,
Joe Perchesd44570e2009-08-24 17:29:44 +00008114 sp->config.tx_fifo_num);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008115
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04008116 DBG_PRINT(ERR_DBG, "%s: Using %d Rx ring(s)\n", dev->name,
8117 sp->config.rx_ring_num);
8118
Joe Perchesd44570e2009-08-24 17:29:44 +00008119 switch (sp->config.intr_type) {
8120 case INTA:
8121 DBG_PRINT(ERR_DBG, "%s: Interrupt type INTA\n", dev->name);
8122 break;
8123 case MSI_X:
8124 DBG_PRINT(ERR_DBG, "%s: Interrupt type MSI-X\n", dev->name);
8125 break;
Ananda Raju9dc737a2006-04-21 19:05:41 -04008126 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008127 if (sp->config.multiq) {
Joe Perches13d866a2009-08-24 17:29:41 +00008128 for (i = 0; i < sp->config.tx_fifo_num; i++) {
8129 struct fifo_info *fifo = &mac_control->fifos[i];
8130
8131 fifo->multiq = config->multiq;
8132 }
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008133 DBG_PRINT(ERR_DBG, "%s: Multiqueue support enabled\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00008134 dev->name);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008135 } else
8136 DBG_PRINT(ERR_DBG, "%s: Multiqueue support disabled\n",
Joe Perchesd44570e2009-08-24 17:29:44 +00008137 dev->name);
Sreenivasa Honnur3a3d5752008-02-20 16:44:07 -05008138
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05008139 switch (sp->config.tx_steering_type) {
8140 case NO_STEERING:
Joe Perchesd44570e2009-08-24 17:29:44 +00008141 DBG_PRINT(ERR_DBG, "%s: No steering enabled for transmit\n",
8142 dev->name);
8143 break;
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05008144 case TX_PRIORITY_STEERING:
Joe Perchesd44570e2009-08-24 17:29:44 +00008145 DBG_PRINT(ERR_DBG,
8146 "%s: Priority steering enabled for transmit\n",
8147 dev->name);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05008148 break;
8149 case TX_DEFAULT_STEERING:
Joe Perchesd44570e2009-08-24 17:29:44 +00008150 DBG_PRINT(ERR_DBG,
8151 "%s: Default steering enabled for transmit\n",
8152 dev->name);
Sreenivasa Honnur6cfc4822008-02-20 17:07:51 -05008153 }
8154
Amerigo Wangf0c54ac2010-08-25 00:23:39 +00008155 DBG_PRINT(ERR_DBG, "%s: Large receive offload enabled\n",
8156 dev->name);
Sivakumar Subramanidb874e62007-01-31 13:28:08 -05008157 if (ufo)
Joe Perchesd44570e2009-08-24 17:29:44 +00008158 DBG_PRINT(ERR_DBG,
8159 "%s: UDP Fragmentation Offload(UFO) enabled\n",
8160 dev->name);
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07008161 /* Initialize device name */
Ananda Raju9dc737a2006-04-21 19:05:41 -04008162 sprintf(sp->name, "%s Neterion %s", dev->name, sp->product_name);
raghavendra.koushik@neterion.com7ba013a2005-08-03 12:29:20 -07008163
Breno Leitaocd0fce02008-09-04 17:52:54 -03008164 if (vlan_tag_strip)
8165 sp->vlan_strip_flag = 1;
8166 else
8167 sp->vlan_strip_flag = 0;
8168
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008169 /*
8170 * Make Link state as off at this point, when the Link change
8171 * interrupt comes the state will be automatically changed to
Linus Torvalds1da177e2005-04-16 15:20:36 -07008172 * the right state.
8173 */
8174 netif_carrier_off(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008175
8176 return 0;
8177
Joe Perchesd44570e2009-08-24 17:29:44 +00008178register_failed:
8179set_swap_failed:
Linus Torvalds1da177e2005-04-16 15:20:36 -07008180 iounmap(sp->bar1);
Joe Perchesd44570e2009-08-24 17:29:44 +00008181bar1_remap_failed:
Linus Torvalds1da177e2005-04-16 15:20:36 -07008182 iounmap(sp->bar0);
Joe Perchesd44570e2009-08-24 17:29:44 +00008183bar0_remap_failed:
8184mem_alloc_failed:
Linus Torvalds1da177e2005-04-16 15:20:36 -07008185 free_shared_mem(sp);
8186 pci_disable_device(pdev);
Veena Parateccb8622007-07-23 02:23:54 -04008187 pci_release_regions(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008188 pci_set_drvdata(pdev, NULL);
8189 free_netdev(dev);
8190
8191 return ret;
8192}
8193
8194/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008195 * s2io_rem_nic - Free the PCI device
Linus Torvalds1da177e2005-04-16 15:20:36 -07008196 * @pdev: structure containing the PCI related information of the device.
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008197 * Description: This function is called by the Pci subsystem to release a
Linus Torvalds1da177e2005-04-16 15:20:36 -07008198 * PCI device and free up all resource held up by the device. This could
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008199 * be in response to a Hot plug event or when the driver is to be removed
Linus Torvalds1da177e2005-04-16 15:20:36 -07008200 * from memory.
8201 */
8202
8203static void __devexit s2io_rem_nic(struct pci_dev *pdev)
8204{
Joe Perchesa31ff382010-11-15 10:13:57 +00008205 struct net_device *dev = pci_get_drvdata(pdev);
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008206 struct s2io_nic *sp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008207
8208 if (dev == NULL) {
8209 DBG_PRINT(ERR_DBG, "Driver Data is NULL!!\n");
8210 return;
8211 }
8212
Wang Chen4cf16532008-11-12 23:38:14 -08008213 sp = netdev_priv(dev);
Tejun Heo23f333a2010-12-12 16:45:14 +01008214
8215 cancel_work_sync(&sp->rst_timer_task);
8216 cancel_work_sync(&sp->set_link_task);
8217
Linus Torvalds1da177e2005-04-16 15:20:36 -07008218 unregister_netdev(dev);
8219
8220 free_shared_mem(sp);
8221 iounmap(sp->bar0);
8222 iounmap(sp->bar1);
Veena Parateccb8622007-07-23 02:23:54 -04008223 pci_release_regions(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008224 pci_set_drvdata(pdev, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008225 free_netdev(dev);
Sivakumar Subramani19a60522007-01-31 13:30:49 -05008226 pci_disable_device(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008227}
8228
8229/**
8230 * s2io_starter - Entry point for the driver
8231 * Description: This function is the entry point for the driver. It verifies
8232 * the module loadable parameters and initializes PCI configuration space.
8233 */
8234
Stephen Hemminger43b7c452007-10-05 12:39:21 -07008235static int __init s2io_starter(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07008236{
Jeff Garzik29917622006-08-19 17:48:59 -04008237 return pci_register_driver(&s2io_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008238}
8239
8240/**
raghavendra.koushik@neterion.com20346722005-08-03 12:24:33 -07008241 * s2io_closer - Cleanup routine for the driver
Linus Torvalds1da177e2005-04-16 15:20:36 -07008242 * Description: This function is the cleanup routine for the driver. It unregist * ers the driver.
8243 */
8244
Sivakumar Subramani372cc592007-01-31 13:32:57 -05008245static __exit void s2io_closer(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07008246{
8247 pci_unregister_driver(&s2io_driver);
8248 DBG_PRINT(INIT_DBG, "cleanup done\n");
8249}
8250
8251module_init(s2io_starter);
8252module_exit(s2io_closer);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008253
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008254static int check_L2_lro_capable(u8 *buffer, struct iphdr **ip,
Joe Perchesd44570e2009-08-24 17:29:44 +00008255 struct tcphdr **tcp, struct RxD_t *rxdp,
8256 struct s2io_nic *sp)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008257{
8258 int ip_off;
8259 u8 l2_type = (u8)((rxdp->Control_1 >> 37) & 0x7), ip_len;
8260
8261 if (!(rxdp->Control_1 & RXD_FRAME_PROTO_TCP)) {
Joe Perchesd44570e2009-08-24 17:29:44 +00008262 DBG_PRINT(INIT_DBG,
8263 "%s: Non-TCP frames not supported for LRO\n",
Harvey Harrisonb39d66a2008-08-20 16:52:04 -07008264 __func__);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008265 return -1;
8266 }
8267
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008268 /* Checking for DIX type or DIX type with VLAN */
Joe Perchesd44570e2009-08-24 17:29:44 +00008269 if ((l2_type == 0) || (l2_type == 4)) {
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008270 ip_off = HEADER_ETHERNET_II_802_3_SIZE;
8271 /*
8272 * If vlan stripping is disabled and the frame is VLAN tagged,
8273 * shift the offset by the VLAN header size bytes.
8274 */
Breno Leitaocd0fce02008-09-04 17:52:54 -03008275 if ((!sp->vlan_strip_flag) &&
Joe Perchesd44570e2009-08-24 17:29:44 +00008276 (rxdp->Control_1 & RXD_FRAME_VLAN_TAG))
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008277 ip_off += HEADER_VLAN_SIZE;
8278 } else {
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008279 /* LLC, SNAP etc are considered non-mergeable */
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008280 return -1;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008281 }
8282
8283 *ip = (struct iphdr *)((u8 *)buffer + ip_off);
8284 ip_len = (u8)((*ip)->ihl);
8285 ip_len <<= 2;
8286 *tcp = (struct tcphdr *)((unsigned long)*ip + ip_len);
8287
8288 return 0;
8289}
8290
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008291static int check_for_socket_match(struct lro *lro, struct iphdr *ip,
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008292 struct tcphdr *tcp)
8293{
Joe Perchesd44570e2009-08-24 17:29:44 +00008294 DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__);
8295 if ((lro->iph->saddr != ip->saddr) ||
8296 (lro->iph->daddr != ip->daddr) ||
8297 (lro->tcph->source != tcp->source) ||
8298 (lro->tcph->dest != tcp->dest))
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008299 return -1;
8300 return 0;
8301}
8302
8303static inline int get_l4_pyld_length(struct iphdr *ip, struct tcphdr *tcp)
8304{
Joe Perchesd44570e2009-08-24 17:29:44 +00008305 return ntohs(ip->tot_len) - (ip->ihl << 2) - (tcp->doff << 2);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008306}
8307
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008308static void initiate_new_session(struct lro *lro, u8 *l2h,
Joe Perchesd44570e2009-08-24 17:29:44 +00008309 struct iphdr *ip, struct tcphdr *tcp,
8310 u32 tcp_pyld_len, u16 vlan_tag)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008311{
Joe Perchesd44570e2009-08-24 17:29:44 +00008312 DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008313 lro->l2h = l2h;
8314 lro->iph = ip;
8315 lro->tcph = tcp;
8316 lro->tcp_next_seq = tcp_pyld_len + ntohl(tcp->seq);
Surjit Reangc8855952008-02-03 04:27:38 -08008317 lro->tcp_ack = tcp->ack_seq;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008318 lro->sg_num = 1;
8319 lro->total_len = ntohs(ip->tot_len);
8320 lro->frags_len = 0;
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008321 lro->vlan_tag = vlan_tag;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008322 /*
Joe Perchesd44570e2009-08-24 17:29:44 +00008323 * Check if we saw TCP timestamp.
8324 * Other consistency checks have already been done.
8325 */
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008326 if (tcp->doff == 8) {
Surjit Reangc8855952008-02-03 04:27:38 -08008327 __be32 *ptr;
8328 ptr = (__be32 *)(tcp+1);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008329 lro->saw_ts = 1;
Surjit Reangc8855952008-02-03 04:27:38 -08008330 lro->cur_tsval = ntohl(*(ptr+1));
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008331 lro->cur_tsecr = *(ptr+2);
8332 }
8333 lro->in_use = 1;
8334}
8335
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008336static void update_L3L4_header(struct s2io_nic *sp, struct lro *lro)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008337{
8338 struct iphdr *ip = lro->iph;
8339 struct tcphdr *tcp = lro->tcph;
Al Virobd4f3ae2007-02-09 16:40:15 +00008340 __sum16 nchk;
Joe Perchesffb5df62009-08-24 17:29:47 +00008341 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
8342
Joe Perchesd44570e2009-08-24 17:29:44 +00008343 DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008344
8345 /* Update L3 header */
8346 ip->tot_len = htons(lro->total_len);
8347 ip->check = 0;
8348 nchk = ip_fast_csum((u8 *)lro->iph, ip->ihl);
8349 ip->check = nchk;
8350
8351 /* Update L4 header */
8352 tcp->ack_seq = lro->tcp_ack;
8353 tcp->window = lro->window;
8354
8355 /* Update tsecr field if this session has timestamps enabled */
8356 if (lro->saw_ts) {
Surjit Reangc8855952008-02-03 04:27:38 -08008357 __be32 *ptr = (__be32 *)(tcp + 1);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008358 *(ptr+2) = lro->cur_tsecr;
8359 }
8360
8361 /* Update counters required for calculation of
8362 * average no. of packets aggregated.
8363 */
Joe Perchesffb5df62009-08-24 17:29:47 +00008364 swstats->sum_avg_pkts_aggregated += lro->sg_num;
8365 swstats->num_aggregations++;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008366}
8367
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008368static void aggregate_new_rx(struct lro *lro, struct iphdr *ip,
Joe Perchesd44570e2009-08-24 17:29:44 +00008369 struct tcphdr *tcp, u32 l4_pyld)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008370{
Joe Perchesd44570e2009-08-24 17:29:44 +00008371 DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008372 lro->total_len += l4_pyld;
8373 lro->frags_len += l4_pyld;
8374 lro->tcp_next_seq += l4_pyld;
8375 lro->sg_num++;
8376
8377 /* Update ack seq no. and window ad(from this pkt) in LRO object */
8378 lro->tcp_ack = tcp->ack_seq;
8379 lro->window = tcp->window;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008380
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008381 if (lro->saw_ts) {
Surjit Reangc8855952008-02-03 04:27:38 -08008382 __be32 *ptr;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008383 /* Update tsecr and tsval from this packet */
Surjit Reangc8855952008-02-03 04:27:38 -08008384 ptr = (__be32 *)(tcp+1);
8385 lro->cur_tsval = ntohl(*(ptr+1));
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008386 lro->cur_tsecr = *(ptr + 2);
8387 }
8388}
8389
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008390static int verify_l3_l4_lro_capable(struct lro *l_lro, struct iphdr *ip,
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008391 struct tcphdr *tcp, u32 tcp_pyld_len)
8392{
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008393 u8 *ptr;
8394
Joe Perchesd44570e2009-08-24 17:29:44 +00008395 DBG_PRINT(INFO_DBG, "%s: Been here...\n", __func__);
Andrew Morton79dc1902006-02-03 01:45:13 -08008396
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008397 if (!tcp_pyld_len) {
8398 /* Runt frame or a pure ack */
8399 return -1;
8400 }
8401
8402 if (ip->ihl != 5) /* IP has options */
8403 return -1;
8404
Ananda Raju75c30b12006-07-24 19:55:09 -04008405 /* If we see CE codepoint in IP header, packet is not mergeable */
8406 if (INET_ECN_is_ce(ipv4_get_dsfield(ip)))
8407 return -1;
8408
8409 /* If we see ECE or CWR flags in TCP header, packet is not mergeable */
Joe Perchesd44570e2009-08-24 17:29:44 +00008410 if (tcp->urg || tcp->psh || tcp->rst ||
8411 tcp->syn || tcp->fin ||
8412 tcp->ece || tcp->cwr || !tcp->ack) {
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008413 /*
8414 * Currently recognize only the ack control word and
8415 * any other control field being set would result in
8416 * flushing the LRO session
8417 */
8418 return -1;
8419 }
8420
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008421 /*
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008422 * Allow only one TCP timestamp option. Don't aggregate if
8423 * any other options are detected.
8424 */
8425 if (tcp->doff != 5 && tcp->doff != 8)
8426 return -1;
8427
8428 if (tcp->doff == 8) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -04008429 ptr = (u8 *)(tcp + 1);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008430 while (*ptr == TCPOPT_NOP)
8431 ptr++;
8432 if (*ptr != TCPOPT_TIMESTAMP || *(ptr+1) != TCPOLEN_TIMESTAMP)
8433 return -1;
8434
8435 /* Ensure timestamp value increases monotonically */
8436 if (l_lro)
Surjit Reangc8855952008-02-03 04:27:38 -08008437 if (l_lro->cur_tsval > ntohl(*((__be32 *)(ptr+2))))
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008438 return -1;
8439
8440 /* timestamp echo reply should be non-zero */
Surjit Reangc8855952008-02-03 04:27:38 -08008441 if (*((__be32 *)(ptr+6)) == 0)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008442 return -1;
8443 }
8444
8445 return 0;
8446}
8447
Joe Perchesd44570e2009-08-24 17:29:44 +00008448static int s2io_club_tcp_session(struct ring_info *ring_data, u8 *buffer,
8449 u8 **tcp, u32 *tcp_len, struct lro **lro,
8450 struct RxD_t *rxdp, struct s2io_nic *sp)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008451{
8452 struct iphdr *ip;
8453 struct tcphdr *tcph;
8454 int ret = 0, i;
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008455 u16 vlan_tag = 0;
Joe Perchesffb5df62009-08-24 17:29:47 +00008456 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008457
Joe Perchesd44570e2009-08-24 17:29:44 +00008458 ret = check_L2_lro_capable(buffer, &ip, (struct tcphdr **)tcp,
8459 rxdp, sp);
8460 if (ret)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008461 return ret;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008462
Joe Perchesd44570e2009-08-24 17:29:44 +00008463 DBG_PRINT(INFO_DBG, "IP Saddr: %x Daddr: %x\n", ip->saddr, ip->daddr);
8464
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008465 vlan_tag = RXD_GET_VLAN_TAG(rxdp->Control_2);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008466 tcph = (struct tcphdr *)*tcp;
8467 *tcp_len = get_l4_pyld_length(ip, tcph);
Joe Perchesd44570e2009-08-24 17:29:44 +00008468 for (i = 0; i < MAX_LRO_SESSIONS; i++) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04008469 struct lro *l_lro = &ring_data->lro0_n[i];
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008470 if (l_lro->in_use) {
8471 if (check_for_socket_match(l_lro, ip, tcph))
8472 continue;
8473 /* Sock pair matched */
8474 *lro = l_lro;
8475
8476 if ((*lro)->tcp_next_seq != ntohl(tcph->seq)) {
Joe Perches9e39f7c2009-08-25 08:52:00 +00008477 DBG_PRINT(INFO_DBG, "%s: Out of sequence. "
8478 "expected 0x%x, actual 0x%x\n",
8479 __func__,
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008480 (*lro)->tcp_next_seq,
8481 ntohl(tcph->seq));
8482
Joe Perchesffb5df62009-08-24 17:29:47 +00008483 swstats->outof_sequence_pkts++;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008484 ret = 2;
8485 break;
8486 }
8487
Joe Perchesd44570e2009-08-24 17:29:44 +00008488 if (!verify_l3_l4_lro_capable(l_lro, ip, tcph,
8489 *tcp_len))
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008490 ret = 1; /* Aggregate */
8491 else
8492 ret = 2; /* Flush both */
8493 break;
8494 }
8495 }
8496
8497 if (ret == 0) {
8498 /* Before searching for available LRO objects,
8499 * check if the pkt is L3/L4 aggregatable. If not
8500 * don't create new LRO session. Just send this
8501 * packet up.
8502 */
Joe Perchesd44570e2009-08-24 17:29:44 +00008503 if (verify_l3_l4_lro_capable(NULL, ip, tcph, *tcp_len))
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008504 return 5;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008505
Joe Perchesd44570e2009-08-24 17:29:44 +00008506 for (i = 0; i < MAX_LRO_SESSIONS; i++) {
Sreenivasa Honnur0425b462008-04-28 21:08:45 -04008507 struct lro *l_lro = &ring_data->lro0_n[i];
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008508 if (!(l_lro->in_use)) {
8509 *lro = l_lro;
8510 ret = 3; /* Begin anew */
8511 break;
8512 }
8513 }
8514 }
8515
8516 if (ret == 0) { /* sessions exceeded */
Joe Perches9e39f7c2009-08-25 08:52:00 +00008517 DBG_PRINT(INFO_DBG, "%s: All LRO sessions already in use\n",
Harvey Harrisonb39d66a2008-08-20 16:52:04 -07008518 __func__);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008519 *lro = NULL;
8520 return ret;
8521 }
8522
8523 switch (ret) {
Joe Perchesd44570e2009-08-24 17:29:44 +00008524 case 3:
8525 initiate_new_session(*lro, buffer, ip, tcph, *tcp_len,
8526 vlan_tag);
8527 break;
8528 case 2:
8529 update_L3L4_header(sp, *lro);
8530 break;
8531 case 1:
8532 aggregate_new_rx(*lro, ip, tcph, *tcp_len);
8533 if ((*lro)->sg_num == sp->lro_max_aggr_per_sess) {
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008534 update_L3L4_header(sp, *lro);
Joe Perchesd44570e2009-08-24 17:29:44 +00008535 ret = 4; /* Flush the LRO */
8536 }
8537 break;
8538 default:
Joe Perches9e39f7c2009-08-25 08:52:00 +00008539 DBG_PRINT(ERR_DBG, "%s: Don't know, can't say!!\n", __func__);
Joe Perchesd44570e2009-08-24 17:29:44 +00008540 break;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008541 }
8542
8543 return ret;
8544}
8545
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008546static void clear_lro_session(struct lro *lro)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008547{
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008548 static u16 lro_struct_size = sizeof(struct lro);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008549
8550 memset(lro, 0, lro_struct_size);
8551}
8552
Sreenivasa Honnurcdb5bf02008-02-20 17:09:15 -05008553static void queue_rx_frame(struct sk_buff *skb, u16 vlan_tag)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008554{
8555 struct net_device *dev = skb->dev;
Wang Chen4cf16532008-11-12 23:38:14 -08008556 struct s2io_nic *sp = netdev_priv(dev);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008557
8558 skb->protocol = eth_type_trans(skb, dev);
Jiri Pirkob85da2c2011-07-20 04:54:24 +00008559 if (vlan_tag && sp->vlan_strip_flag)
8560 __vlan_hwaccel_put_tag(skb, vlan_tag);
8561 if (sp->config.napi)
8562 netif_receive_skb(skb);
8563 else
8564 netif_rx(skb);
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008565}
8566
Ralf Baechle1ee6dd72007-01-31 14:09:29 -05008567static void lro_append_pkt(struct s2io_nic *sp, struct lro *lro,
Joe Perchesd44570e2009-08-24 17:29:44 +00008568 struct sk_buff *skb, u32 tcp_len)
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008569{
Ananda Raju75c30b12006-07-24 19:55:09 -04008570 struct sk_buff *first = lro->parent;
Joe Perchesffb5df62009-08-24 17:29:47 +00008571 struct swStat *swstats = &sp->mac_control.stats_info->sw_stat;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008572
8573 first->len += tcp_len;
8574 first->data_len = lro->frags_len;
8575 skb_pull(skb, (skb->len - tcp_len));
Ananda Raju75c30b12006-07-24 19:55:09 -04008576 if (skb_shinfo(first)->frag_list)
8577 lro->last_frag->next = skb;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008578 else
8579 skb_shinfo(first)->frag_list = skb;
Sivakumar Subramani372cc592007-01-31 13:32:57 -05008580 first->truesize += skb->truesize;
Ananda Raju75c30b12006-07-24 19:55:09 -04008581 lro->last_frag = skb;
Joe Perchesffb5df62009-08-24 17:29:47 +00008582 swstats->clubbed_frms_cnt++;
Ravinandan Arakali7d3d04392006-01-25 14:53:07 -05008583}
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008584
8585/**
8586 * s2io_io_error_detected - called when PCI error is detected
8587 * @pdev: Pointer to PCI device
Rolf Eike Beer8453d432007-07-10 11:58:02 +02008588 * @state: The current pci connection state
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008589 *
8590 * This function is called after a PCI bus error affecting
8591 * this device has been detected.
8592 */
8593static pci_ers_result_t s2io_io_error_detected(struct pci_dev *pdev,
Joe Perchesd44570e2009-08-24 17:29:44 +00008594 pci_channel_state_t state)
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008595{
8596 struct net_device *netdev = pci_get_drvdata(pdev);
Wang Chen4cf16532008-11-12 23:38:14 -08008597 struct s2io_nic *sp = netdev_priv(netdev);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008598
8599 netif_device_detach(netdev);
8600
Dean Nelson1e3c8bd2009-07-31 09:13:56 +00008601 if (state == pci_channel_io_perm_failure)
8602 return PCI_ERS_RESULT_DISCONNECT;
8603
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008604 if (netif_running(netdev)) {
8605 /* Bring down the card, while avoiding PCI I/O */
8606 do_s2io_card_down(sp, 0);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008607 }
8608 pci_disable_device(pdev);
8609
8610 return PCI_ERS_RESULT_NEED_RESET;
8611}
8612
8613/**
8614 * s2io_io_slot_reset - called after the pci bus has been reset.
8615 * @pdev: Pointer to PCI device
8616 *
8617 * Restart the card from scratch, as if from a cold-boot.
8618 * At this point, the card has exprienced a hard reset,
8619 * followed by fixups by BIOS, and has its config space
8620 * set up identically to what it was at cold boot.
8621 */
8622static pci_ers_result_t s2io_io_slot_reset(struct pci_dev *pdev)
8623{
8624 struct net_device *netdev = pci_get_drvdata(pdev);
Wang Chen4cf16532008-11-12 23:38:14 -08008625 struct s2io_nic *sp = netdev_priv(netdev);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008626
8627 if (pci_enable_device(pdev)) {
Joe Perches6cef2b8e2009-08-24 17:29:45 +00008628 pr_err("Cannot re-enable PCI device after reset.\n");
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008629 return PCI_ERS_RESULT_DISCONNECT;
8630 }
8631
8632 pci_set_master(pdev);
8633 s2io_reset(sp);
8634
8635 return PCI_ERS_RESULT_RECOVERED;
8636}
8637
8638/**
8639 * s2io_io_resume - called when traffic can start flowing again.
8640 * @pdev: Pointer to PCI device
8641 *
8642 * This callback is called when the error recovery driver tells
8643 * us that its OK to resume normal operation.
8644 */
8645static void s2io_io_resume(struct pci_dev *pdev)
8646{
8647 struct net_device *netdev = pci_get_drvdata(pdev);
Wang Chen4cf16532008-11-12 23:38:14 -08008648 struct s2io_nic *sp = netdev_priv(netdev);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008649
8650 if (netif_running(netdev)) {
8651 if (s2io_card_up(sp)) {
Joe Perches6cef2b8e2009-08-24 17:29:45 +00008652 pr_err("Can't bring device back up after reset.\n");
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008653 return;
8654 }
8655
8656 if (s2io_set_mac_addr(netdev, netdev->dev_addr) == FAILURE) {
8657 s2io_card_down(sp);
Joe Perches6cef2b8e2009-08-24 17:29:45 +00008658 pr_err("Can't restore mac addr after reset.\n");
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008659 return;
8660 }
8661 }
8662
8663 netif_device_attach(netdev);
David S. Millerfd2ea0a2008-07-17 01:56:23 -07008664 netif_tx_wake_all_queues(netdev);
Linas Vepstasd796fdb2007-05-14 18:37:30 -05008665}