| /******************************************************************************* |
| Header File to describe the DMA descriptors. |
| Enhanced descriptors have been in case of DWMAC1000 Cores. |
| |
| This program is free software; you can redistribute it and/or modify it |
| under the terms and conditions of the GNU General Public License, |
| version 2, as published by the Free Software Foundation. |
| |
| This program is distributed in the hope it will be useful, but WITHOUT |
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| more details. |
| |
| You should have received a copy of the GNU General Public License along with |
| this program; if not, write to the Free Software Foundation, Inc., |
| 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. |
| |
| The full GNU General Public License is included in this distribution in |
| the file called "COPYING". |
| |
| Author: Giuseppe Cavallaro <peppe.cavallaro@st.com> |
| *******************************************************************************/ |
| |
| #ifndef __DESCS_H__ |
| #define __DESCS_H__ |
| |
| /* Basic descriptor structure for normal and alternate descriptors */ |
| struct dma_desc { |
| /* Receive descriptor */ |
| union { |
| struct { |
| /* RDES0 */ |
| u32 payload_csum_error:1; |
| u32 crc_error:1; |
| u32 dribbling:1; |
| u32 mii_error:1; |
| u32 receive_watchdog:1; |
| u32 frame_type:1; |
| u32 collision:1; |
| u32 ipc_csum_error:1; |
| u32 last_descriptor:1; |
| u32 first_descriptor:1; |
| u32 vlan_tag:1; |
| u32 overflow_error:1; |
| u32 length_error:1; |
| u32 sa_filter_fail:1; |
| u32 descriptor_error:1; |
| u32 error_summary:1; |
| u32 frame_length:14; |
| u32 da_filter_fail:1; |
| u32 own:1; |
| /* RDES1 */ |
| u32 buffer1_size:11; |
| u32 buffer2_size:11; |
| u32 reserved1:2; |
| u32 second_address_chained:1; |
| u32 end_ring:1; |
| u32 reserved2:5; |
| u32 disable_ic:1; |
| |
| } rx; |
| struct { |
| /* RDES0 */ |
| u32 rx_mac_addr:1; |
| u32 crc_error:1; |
| u32 dribbling:1; |
| u32 error_gmii:1; |
| u32 receive_watchdog:1; |
| u32 frame_type:1; |
| u32 late_collision:1; |
| u32 ipc_csum_error:1; |
| u32 last_descriptor:1; |
| u32 first_descriptor:1; |
| u32 vlan_tag:1; |
| u32 overflow_error:1; |
| u32 length_error:1; |
| u32 sa_filter_fail:1; |
| u32 descriptor_error:1; |
| u32 error_summary:1; |
| u32 frame_length:14; |
| u32 da_filter_fail:1; |
| u32 own:1; |
| /* RDES1 */ |
| u32 buffer1_size:13; |
| u32 reserved1:1; |
| u32 second_address_chained:1; |
| u32 end_ring:1; |
| u32 buffer2_size:13; |
| u32 reserved2:2; |
| u32 disable_ic:1; |
| } erx; /* -- enhanced -- */ |
| |
| /* Transmit descriptor */ |
| struct { |
| /* TDES0 */ |
| u32 deferred:1; |
| u32 underflow_error:1; |
| u32 excessive_deferral:1; |
| u32 collision_count:4; |
| u32 vlan_frame:1; |
| u32 excessive_collisions:1; |
| u32 late_collision:1; |
| u32 no_carrier:1; |
| u32 loss_carrier:1; |
| u32 payload_error:1; |
| u32 frame_flushed:1; |
| u32 jabber_timeout:1; |
| u32 error_summary:1; |
| u32 ip_header_error:1; |
| u32 time_stamp_status:1; |
| u32 reserved1:13; |
| u32 own:1; |
| /* TDES1 */ |
| u32 buffer1_size:11; |
| u32 buffer2_size:11; |
| u32 time_stamp_enable:1; |
| u32 disable_padding:1; |
| u32 second_address_chained:1; |
| u32 end_ring:1; |
| u32 crc_disable:1; |
| u32 checksum_insertion:2; |
| u32 first_segment:1; |
| u32 last_segment:1; |
| u32 interrupt:1; |
| } tx; |
| struct { |
| /* TDES0 */ |
| u32 deferred:1; |
| u32 underflow_error:1; |
| u32 excessive_deferral:1; |
| u32 collision_count:4; |
| u32 vlan_frame:1; |
| u32 excessive_collisions:1; |
| u32 late_collision:1; |
| u32 no_carrier:1; |
| u32 loss_carrier:1; |
| u32 payload_error:1; |
| u32 frame_flushed:1; |
| u32 jabber_timeout:1; |
| u32 error_summary:1; |
| u32 ip_header_error:1; |
| u32 time_stamp_status:1; |
| u32 reserved1:2; |
| u32 second_address_chained:1; |
| u32 end_ring:1; |
| u32 checksum_insertion:2; |
| u32 reserved2:1; |
| u32 time_stamp_enable:1; |
| u32 disable_padding:1; |
| u32 crc_disable:1; |
| u32 first_segment:1; |
| u32 last_segment:1; |
| u32 interrupt:1; |
| u32 own:1; |
| /* TDES1 */ |
| u32 buffer1_size:13; |
| u32 reserved3:3; |
| u32 buffer2_size:13; |
| u32 reserved4:3; |
| } etx; /* -- enhanced -- */ |
| } des01; |
| unsigned int des2; |
| unsigned int des3; |
| }; |
| |
| /* Extended descriptor structure (supported by new SYNP GMAC generations) */ |
| struct dma_extended_desc { |
| struct dma_desc basic; |
| union { |
| struct { |
| u32 ip_payload_type:3; |
| u32 ip_hdr_err:1; |
| u32 ip_payload_err:1; |
| u32 ip_csum_bypassed:1; |
| u32 ipv4_pkt_rcvd:1; |
| u32 ipv6_pkt_rcvd:1; |
| u32 msg_type:4; |
| u32 ptp_frame_type:1; |
| u32 ptp_ver:1; |
| u32 timestamp_dropped:1; |
| u32 reserved:1; |
| u32 av_pkt_rcvd:1; |
| u32 av_tagged_pkt_rcvd:1; |
| u32 vlan_tag_priority_val:3; |
| u32 reserved3:3; |
| u32 l3_filter_match:1; |
| u32 l4_filter_match:1; |
| u32 l3_l4_filter_no_match:2; |
| u32 reserved4:4; |
| } erx; |
| struct { |
| u32 reserved; |
| } etx; |
| } des4; |
| unsigned int des5; /* Reserved */ |
| unsigned int des6; /* Tx/Rx Timestamp Low */ |
| unsigned int des7; /* Tx/Rx Timestamp High */ |
| }; |
| |
| /* Transmit checksum insertion control */ |
| enum tdes_csum_insertion { |
| cic_disabled = 0, /* Checksum Insertion Control */ |
| cic_only_ip = 1, /* Only IP header */ |
| /* IP header but pseudoheader is not calculated */ |
| cic_no_pseudoheader = 2, |
| cic_full = 3, /* IP header and pseudoheader */ |
| }; |
| |
| /* Extended RDES4 definitions */ |
| #define RDES_EXT_NO_PTP 0 |
| #define RDES_EXT_SYNC 0x1 |
| #define RDES_EXT_FOLLOW_UP 0x2 |
| #define RDES_EXT_DELAY_REQ 0x3 |
| #define RDES_EXT_DELAY_RESP 0x4 |
| #define RDES_EXT_PDELAY_REQ 0x5 |
| #define RDES_EXT_PDELAY_RESP 0x6 |
| #define RDES_EXT_PDELAY_FOLLOW_UP 0x7 |
| |
| #endif /* __DESCS_H__ */ |
