| /* |
| * drivers/s390/net/qeth_l2_main.c |
| * |
| * Copyright IBM Corp. 2007, 2009 |
| * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, |
| * Frank Pavlic <fpavlic@de.ibm.com>, |
| * Thomas Spatzier <tspat@de.ibm.com>, |
| * Frank Blaschka <frank.blaschka@de.ibm.com> |
| */ |
| |
| #define KMSG_COMPONENT "qeth" |
| #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt |
| |
| #include <linux/module.h> |
| #include <linux/moduleparam.h> |
| #include <linux/string.h> |
| #include <linux/errno.h> |
| #include <linux/kernel.h> |
| #include <linux/etherdevice.h> |
| #include <linux/mii.h> |
| #include <linux/ip.h> |
| #include <linux/list.h> |
| |
| #include "qeth_core.h" |
| |
| static int qeth_l2_set_offline(struct ccwgroup_device *); |
| static int qeth_l2_stop(struct net_device *); |
| static int qeth_l2_send_delmac(struct qeth_card *, __u8 *); |
| static int qeth_l2_send_setdelmac(struct qeth_card *, __u8 *, |
| enum qeth_ipa_cmds, |
| int (*reply_cb) (struct qeth_card *, |
| struct qeth_reply*, |
| unsigned long)); |
| static void qeth_l2_set_multicast_list(struct net_device *); |
| static int qeth_l2_recover(void *); |
| |
| static int qeth_l2_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
| { |
| struct qeth_card *card = dev->ml_priv; |
| struct mii_ioctl_data *mii_data; |
| int rc = 0; |
| |
| if (!card) |
| return -ENODEV; |
| |
| if ((card->state != CARD_STATE_UP) && |
| (card->state != CARD_STATE_SOFTSETUP)) |
| return -ENODEV; |
| |
| if (card->info.type == QETH_CARD_TYPE_OSN) |
| return -EPERM; |
| |
| switch (cmd) { |
| case SIOC_QETH_ADP_SET_SNMP_CONTROL: |
| rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data); |
| break; |
| case SIOC_QETH_GET_CARD_TYPE: |
| if ((card->info.type == QETH_CARD_TYPE_OSAE) && |
| !card->info.guestlan) |
| return 1; |
| return 0; |
| break; |
| case SIOCGMIIPHY: |
| mii_data = if_mii(rq); |
| mii_data->phy_id = 0; |
| break; |
| case SIOCGMIIREG: |
| mii_data = if_mii(rq); |
| if (mii_data->phy_id != 0) |
| rc = -EINVAL; |
| else |
| mii_data->val_out = qeth_mdio_read(dev, |
| mii_data->phy_id, mii_data->reg_num); |
| break; |
| default: |
| rc = -EOPNOTSUPP; |
| } |
| if (rc) |
| QETH_DBF_TEXT_(TRACE, 2, "ioce%d", rc); |
| return rc; |
| } |
| |
| static int qeth_l2_verify_dev(struct net_device *dev) |
| { |
| struct qeth_card *card; |
| unsigned long flags; |
| int rc = 0; |
| |
| read_lock_irqsave(&qeth_core_card_list.rwlock, flags); |
| list_for_each_entry(card, &qeth_core_card_list.list, list) { |
| if (card->dev == dev) { |
| rc = QETH_REAL_CARD; |
| break; |
| } |
| } |
| read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); |
| |
| return rc; |
| } |
| |
| static struct net_device *qeth_l2_netdev_by_devno(unsigned char *read_dev_no) |
| { |
| struct qeth_card *card; |
| struct net_device *ndev; |
| __u16 temp_dev_no; |
| unsigned long flags; |
| struct ccw_dev_id read_devid; |
| |
| ndev = NULL; |
| memcpy(&temp_dev_no, read_dev_no, 2); |
| read_lock_irqsave(&qeth_core_card_list.rwlock, flags); |
| list_for_each_entry(card, &qeth_core_card_list.list, list) { |
| ccw_device_get_id(CARD_RDEV(card), &read_devid); |
| if (read_devid.devno == temp_dev_no) { |
| ndev = card->dev; |
| break; |
| } |
| } |
| read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); |
| return ndev; |
| } |
| |
| static int qeth_l2_send_setgroupmac_cb(struct qeth_card *card, |
| struct qeth_reply *reply, |
| unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd; |
| __u8 *mac; |
| |
| QETH_DBF_TEXT(TRACE, 2, "L2Sgmacb"); |
| cmd = (struct qeth_ipa_cmd *) data; |
| mac = &cmd->data.setdelmac.mac[0]; |
| /* MAC already registered, needed in couple/uncouple case */ |
| if (cmd->hdr.return_code == IPA_RC_L2_DUP_MAC) { |
| QETH_DBF_MESSAGE(2, "Group MAC %pM already existing on %s \n", |
| mac, QETH_CARD_IFNAME(card)); |
| cmd->hdr.return_code = 0; |
| } |
| if (cmd->hdr.return_code) |
| QETH_DBF_MESSAGE(2, "Could not set group MAC %pM on %s: %x\n", |
| mac, QETH_CARD_IFNAME(card), cmd->hdr.return_code); |
| return 0; |
| } |
| |
| static int qeth_l2_send_setgroupmac(struct qeth_card *card, __u8 *mac) |
| { |
| QETH_DBF_TEXT(TRACE, 2, "L2Sgmac"); |
| return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETGMAC, |
| qeth_l2_send_setgroupmac_cb); |
| } |
| |
| static int qeth_l2_send_delgroupmac_cb(struct qeth_card *card, |
| struct qeth_reply *reply, |
| unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd; |
| __u8 *mac; |
| |
| QETH_DBF_TEXT(TRACE, 2, "L2Dgmacb"); |
| cmd = (struct qeth_ipa_cmd *) data; |
| mac = &cmd->data.setdelmac.mac[0]; |
| if (cmd->hdr.return_code) |
| QETH_DBF_MESSAGE(2, "Could not delete group MAC %pM on %s: %x\n", |
| mac, QETH_CARD_IFNAME(card), cmd->hdr.return_code); |
| return 0; |
| } |
| |
| static int qeth_l2_send_delgroupmac(struct qeth_card *card, __u8 *mac) |
| { |
| QETH_DBF_TEXT(TRACE, 2, "L2Dgmac"); |
| return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELGMAC, |
| qeth_l2_send_delgroupmac_cb); |
| } |
| |
| static void qeth_l2_add_mc(struct qeth_card *card, __u8 *mac, int vmac) |
| { |
| struct qeth_mc_mac *mc; |
| int rc; |
| |
| mc = kmalloc(sizeof(struct qeth_mc_mac), GFP_ATOMIC); |
| |
| if (!mc) |
| return; |
| |
| memcpy(mc->mc_addr, mac, OSA_ADDR_LEN); |
| mc->mc_addrlen = OSA_ADDR_LEN; |
| mc->is_vmac = vmac; |
| |
| if (vmac) { |
| rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, |
| NULL); |
| } else { |
| rc = qeth_l2_send_setgroupmac(card, mac); |
| } |
| |
| if (!rc) |
| list_add_tail(&mc->list, &card->mc_list); |
| else |
| kfree(mc); |
| } |
| |
| static void qeth_l2_del_all_mc(struct qeth_card *card) |
| { |
| struct qeth_mc_mac *mc, *tmp; |
| |
| spin_lock_bh(&card->mclock); |
| list_for_each_entry_safe(mc, tmp, &card->mc_list, list) { |
| if (mc->is_vmac) |
| qeth_l2_send_setdelmac(card, mc->mc_addr, |
| IPA_CMD_DELVMAC, NULL); |
| else |
| qeth_l2_send_delgroupmac(card, mc->mc_addr); |
| list_del(&mc->list); |
| kfree(mc); |
| } |
| spin_unlock_bh(&card->mclock); |
| } |
| |
| static inline int qeth_l2_get_cast_type(struct qeth_card *card, |
| struct sk_buff *skb) |
| { |
| if (card->info.type == QETH_CARD_TYPE_OSN) |
| return RTN_UNSPEC; |
| if (is_broadcast_ether_addr(skb->data)) |
| return RTN_BROADCAST; |
| if (is_multicast_ether_addr(skb->data)) |
| return RTN_MULTICAST; |
| return RTN_UNSPEC; |
| } |
| |
| static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, |
| struct sk_buff *skb, int ipv, int cast_type) |
| { |
| struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb); |
| |
| memset(hdr, 0, sizeof(struct qeth_hdr)); |
| hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2; |
| |
| /* set byte byte 3 to casting flags */ |
| if (cast_type == RTN_MULTICAST) |
| hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; |
| else if (cast_type == RTN_BROADCAST) |
| hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST; |
| else |
| hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST; |
| |
| hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE; |
| /* VSWITCH relies on the VLAN |
| * information to be present in |
| * the QDIO header */ |
| if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) { |
| hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN; |
| hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI); |
| } |
| } |
| |
| static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card, |
| struct qeth_reply *reply, unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd; |
| |
| QETH_DBF_TEXT(TRACE, 2, "L2sdvcb"); |
| cmd = (struct qeth_ipa_cmd *) data; |
| if (cmd->hdr.return_code) { |
| QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. " |
| "Continuing\n", cmd->data.setdelvlan.vlan_id, |
| QETH_CARD_IFNAME(card), cmd->hdr.return_code); |
| QETH_DBF_TEXT_(TRACE, 2, "L2VL%4x", cmd->hdr.command); |
| QETH_DBF_TEXT_(TRACE, 2, "L2%s", CARD_BUS_ID(card)); |
| QETH_DBF_TEXT_(TRACE, 2, "err%d", cmd->hdr.return_code); |
| } |
| return 0; |
| } |
| |
| static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i, |
| enum qeth_ipa_cmds ipacmd) |
| { |
| struct qeth_ipa_cmd *cmd; |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_DBF_TEXT_(TRACE, 4, "L2sdv%x", ipacmd); |
| iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); |
| cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| cmd->data.setdelvlan.vlan_id = i; |
| return qeth_send_ipa_cmd(card, iob, |
| qeth_l2_send_setdelvlan_cb, NULL); |
| } |
| |
| static void qeth_l2_process_vlans(struct qeth_card *card, int clear) |
| { |
| struct qeth_vlan_vid *id; |
| QETH_DBF_TEXT(TRACE, 3, "L2prcvln"); |
| spin_lock_bh(&card->vlanlock); |
| list_for_each_entry(id, &card->vid_list, list) { |
| if (clear) |
| qeth_l2_send_setdelvlan(card, id->vid, |
| IPA_CMD_DELVLAN); |
| else |
| qeth_l2_send_setdelvlan(card, id->vid, |
| IPA_CMD_SETVLAN); |
| } |
| spin_unlock_bh(&card->vlanlock); |
| } |
| |
| static void qeth_l2_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) |
| { |
| struct qeth_card *card = dev->ml_priv; |
| struct qeth_vlan_vid *id; |
| |
| QETH_DBF_TEXT_(TRACE, 4, "aid:%d", vid); |
| if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
| QETH_DBF_TEXT(TRACE, 3, "aidREC"); |
| return; |
| } |
| id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC); |
| if (id) { |
| id->vid = vid; |
| qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN); |
| spin_lock_bh(&card->vlanlock); |
| list_add_tail(&id->list, &card->vid_list); |
| spin_unlock_bh(&card->vlanlock); |
| } |
| } |
| |
| static void qeth_l2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) |
| { |
| struct qeth_vlan_vid *id, *tmpid = NULL; |
| struct qeth_card *card = dev->ml_priv; |
| |
| QETH_DBF_TEXT_(TRACE, 4, "kid:%d", vid); |
| if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
| QETH_DBF_TEXT(TRACE, 3, "kidREC"); |
| return; |
| } |
| spin_lock_bh(&card->vlanlock); |
| list_for_each_entry(id, &card->vid_list, list) { |
| if (id->vid == vid) { |
| list_del(&id->list); |
| tmpid = id; |
| break; |
| } |
| } |
| spin_unlock_bh(&card->vlanlock); |
| if (tmpid) { |
| qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN); |
| kfree(tmpid); |
| } |
| qeth_l2_set_multicast_list(card->dev); |
| } |
| |
| static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode) |
| { |
| int rc = 0; |
| |
| QETH_DBF_TEXT(SETUP , 2, "stopcard"); |
| QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); |
| |
| qeth_set_allowed_threads(card, 0, 1); |
| if (card->read.state == CH_STATE_UP && |
| card->write.state == CH_STATE_UP && |
| (card->state == CARD_STATE_UP)) { |
| if (recovery_mode && |
| card->info.type != QETH_CARD_TYPE_OSN) { |
| qeth_l2_stop(card->dev); |
| } else { |
| rtnl_lock(); |
| dev_close(card->dev); |
| rtnl_unlock(); |
| } |
| if (!card->use_hard_stop || |
| recovery_mode) { |
| __u8 *mac = &card->dev->dev_addr[0]; |
| rc = qeth_l2_send_delmac(card, mac); |
| QETH_DBF_TEXT_(SETUP, 2, "Lerr%d", rc); |
| } |
| card->state = CARD_STATE_SOFTSETUP; |
| } |
| if (card->state == CARD_STATE_SOFTSETUP) { |
| qeth_l2_process_vlans(card, 1); |
| if (!card->use_hard_stop || |
| recovery_mode) |
| qeth_l2_del_all_mc(card); |
| qeth_clear_ipacmd_list(card); |
| card->state = CARD_STATE_HARDSETUP; |
| } |
| if (card->state == CARD_STATE_HARDSETUP) { |
| qeth_qdio_clear_card(card, 0); |
| qeth_clear_qdio_buffers(card); |
| qeth_clear_working_pool_list(card); |
| card->state = CARD_STATE_DOWN; |
| } |
| if (card->state == CARD_STATE_DOWN) { |
| qeth_clear_cmd_buffers(&card->read); |
| qeth_clear_cmd_buffers(&card->write); |
| } |
| card->use_hard_stop = 0; |
| return rc; |
| } |
| |
| static void qeth_l2_process_inbound_buffer(struct qeth_card *card, |
| struct qeth_qdio_buffer *buf, int index) |
| { |
| struct qdio_buffer_element *element; |
| struct sk_buff *skb; |
| struct qeth_hdr *hdr; |
| int offset; |
| unsigned int len; |
| |
| /* get first element of current buffer */ |
| element = (struct qdio_buffer_element *)&buf->buffer->element[0]; |
| offset = 0; |
| if (card->options.performance_stats) |
| card->perf_stats.bufs_rec++; |
| while ((skb = qeth_core_get_next_skb(card, buf->buffer, &element, |
| &offset, &hdr))) { |
| skb->dev = card->dev; |
| /* is device UP ? */ |
| if (!(card->dev->flags & IFF_UP)) { |
| dev_kfree_skb_any(skb); |
| continue; |
| } |
| |
| switch (hdr->hdr.l2.id) { |
| case QETH_HEADER_TYPE_LAYER2: |
| skb->pkt_type = PACKET_HOST; |
| skb->protocol = eth_type_trans(skb, skb->dev); |
| if (card->options.checksum_type == NO_CHECKSUMMING) |
| skb->ip_summed = CHECKSUM_UNNECESSARY; |
| else |
| skb->ip_summed = CHECKSUM_NONE; |
| if (skb->protocol == htons(ETH_P_802_2)) |
| *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno; |
| len = skb->len; |
| netif_rx(skb); |
| break; |
| case QETH_HEADER_TYPE_OSN: |
| if (card->info.type == QETH_CARD_TYPE_OSN) { |
| skb_push(skb, sizeof(struct qeth_hdr)); |
| skb_copy_to_linear_data(skb, hdr, |
| sizeof(struct qeth_hdr)); |
| len = skb->len; |
| card->osn_info.data_cb(skb); |
| break; |
| } |
| /* else unknown */ |
| default: |
| dev_kfree_skb_any(skb); |
| QETH_DBF_TEXT(TRACE, 3, "inbunkno"); |
| QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN); |
| continue; |
| } |
| card->stats.rx_packets++; |
| card->stats.rx_bytes += len; |
| } |
| } |
| |
| static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac, |
| enum qeth_ipa_cmds ipacmd, |
| int (*reply_cb) (struct qeth_card *, |
| struct qeth_reply*, |
| unsigned long)) |
| { |
| struct qeth_ipa_cmd *cmd; |
| struct qeth_cmd_buffer *iob; |
| |
| QETH_DBF_TEXT(TRACE, 2, "L2sdmac"); |
| iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); |
| cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| cmd->data.setdelmac.mac_length = OSA_ADDR_LEN; |
| memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN); |
| return qeth_send_ipa_cmd(card, iob, reply_cb, NULL); |
| } |
| |
| static int qeth_l2_send_setmac_cb(struct qeth_card *card, |
| struct qeth_reply *reply, |
| unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd; |
| |
| QETH_DBF_TEXT(TRACE, 2, "L2Smaccb"); |
| cmd = (struct qeth_ipa_cmd *) data; |
| if (cmd->hdr.return_code) { |
| QETH_DBF_TEXT_(TRACE, 2, "L2er%x", cmd->hdr.return_code); |
| card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; |
| switch (cmd->hdr.return_code) { |
| case IPA_RC_L2_DUP_MAC: |
| case IPA_RC_L2_DUP_LAYER3_MAC: |
| dev_warn(&card->gdev->dev, |
| "MAC address %pM already exists\n", |
| card->dev->dev_addr); |
| break; |
| case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP: |
| case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP: |
| dev_warn(&card->gdev->dev, |
| "MAC address %pM is not authorized\n", |
| card->dev->dev_addr); |
| break; |
| default: |
| break; |
| } |
| cmd->hdr.return_code = -EIO; |
| } else { |
| card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; |
| memcpy(card->dev->dev_addr, cmd->data.setdelmac.mac, |
| OSA_ADDR_LEN); |
| dev_info(&card->gdev->dev, |
| "MAC address %pM successfully registered on device %s\n", |
| card->dev->dev_addr, card->dev->name); |
| } |
| return 0; |
| } |
| |
| static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac) |
| { |
| QETH_DBF_TEXT(TRACE, 2, "L2Setmac"); |
| return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, |
| qeth_l2_send_setmac_cb); |
| } |
| |
| static int qeth_l2_send_delmac_cb(struct qeth_card *card, |
| struct qeth_reply *reply, |
| unsigned long data) |
| { |
| struct qeth_ipa_cmd *cmd; |
| |
| QETH_DBF_TEXT(TRACE, 2, "L2Dmaccb"); |
| cmd = (struct qeth_ipa_cmd *) data; |
| if (cmd->hdr.return_code) { |
| QETH_DBF_TEXT_(TRACE, 2, "err%d", cmd->hdr.return_code); |
| cmd->hdr.return_code = -EIO; |
| return 0; |
| } |
| card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; |
| |
| return 0; |
| } |
| |
| static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac) |
| { |
| QETH_DBF_TEXT(TRACE, 2, "L2Delmac"); |
| if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)) |
| return 0; |
| return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELVMAC, |
| qeth_l2_send_delmac_cb); |
| } |
| |
| static int qeth_l2_request_initial_mac(struct qeth_card *card) |
| { |
| int rc = 0; |
| char vendor_pre[] = {0x02, 0x00, 0x00}; |
| |
| QETH_DBF_TEXT(SETUP, 2, "doL2init"); |
| QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card)); |
| |
| rc = qeth_query_setadapterparms(card); |
| if (rc) { |
| QETH_DBF_MESSAGE(2, "could not query adapter parameters on " |
| "device %s: x%x\n", CARD_BUS_ID(card), rc); |
| } |
| |
| if ((card->info.type == QETH_CARD_TYPE_IQD) || |
| (card->info.guestlan)) { |
| rc = qeth_setadpparms_change_macaddr(card); |
| if (rc) { |
| QETH_DBF_MESSAGE(2, "couldn't get MAC address on " |
| "device %s: x%x\n", CARD_BUS_ID(card), rc); |
| QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
| return rc; |
| } |
| QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN); |
| } else { |
| random_ether_addr(card->dev->dev_addr); |
| memcpy(card->dev->dev_addr, vendor_pre, 3); |
| } |
| return 0; |
| } |
| |
| static int qeth_l2_set_mac_address(struct net_device *dev, void *p) |
| { |
| struct sockaddr *addr = p; |
| struct qeth_card *card = dev->ml_priv; |
| int rc = 0; |
| |
| QETH_DBF_TEXT(TRACE, 3, "setmac"); |
| |
| if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) { |
| QETH_DBF_TEXT(TRACE, 3, "setmcINV"); |
| return -EOPNOTSUPP; |
| } |
| |
| if (card->info.type == QETH_CARD_TYPE_OSN) { |
| QETH_DBF_TEXT(TRACE, 3, "setmcOSN"); |
| return -EOPNOTSUPP; |
| } |
| QETH_DBF_TEXT_(TRACE, 3, "%s", CARD_BUS_ID(card)); |
| QETH_DBF_HEX(TRACE, 3, addr->sa_data, OSA_ADDR_LEN); |
| if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
| QETH_DBF_TEXT(TRACE, 3, "setmcREC"); |
| return -ERESTARTSYS; |
| } |
| rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]); |
| if (!rc) |
| rc = qeth_l2_send_setmac(card, addr->sa_data); |
| return rc; |
| } |
| |
| static void qeth_l2_set_multicast_list(struct net_device *dev) |
| { |
| struct qeth_card *card = dev->ml_priv; |
| struct netdev_hw_addr *ha; |
| |
| if (card->info.type == QETH_CARD_TYPE_OSN) |
| return ; |
| |
| QETH_DBF_TEXT(TRACE, 3, "setmulti"); |
| if (qeth_threads_running(card, QETH_RECOVER_THREAD) && |
| (card->state != CARD_STATE_UP)) |
| return; |
| qeth_l2_del_all_mc(card); |
| spin_lock_bh(&card->mclock); |
| netdev_for_each_mc_addr(ha, dev) |
| qeth_l2_add_mc(card, ha->addr, 0); |
| |
| netdev_for_each_uc_addr(ha, dev) |
| qeth_l2_add_mc(card, ha->addr, 1); |
| |
| spin_unlock_bh(&card->mclock); |
| if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) |
| return; |
| qeth_setadp_promisc_mode(card); |
| } |
| |
| static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) |
| { |
| int rc; |
| struct qeth_hdr *hdr = NULL; |
| int elements = 0; |
| struct qeth_card *card = dev->ml_priv; |
| struct sk_buff *new_skb = skb; |
| int ipv = qeth_get_ip_version(skb); |
| int cast_type = qeth_l2_get_cast_type(card, skb); |
| struct qeth_qdio_out_q *queue = card->qdio.out_qs |
| [qeth_get_priority_queue(card, skb, ipv, cast_type)]; |
| int tx_bytes = skb->len; |
| int data_offset = -1; |
| int elements_needed = 0; |
| int hd_len = 0; |
| |
| if ((card->state != CARD_STATE_UP) || !card->lan_online) { |
| card->stats.tx_carrier_errors++; |
| goto tx_drop; |
| } |
| |
| if ((card->info.type == QETH_CARD_TYPE_OSN) && |
| (skb->protocol == htons(ETH_P_IPV6))) |
| goto tx_drop; |
| |
| if (card->options.performance_stats) { |
| card->perf_stats.outbound_cnt++; |
| card->perf_stats.outbound_start_time = qeth_get_micros(); |
| } |
| netif_stop_queue(dev); |
| |
| if (card->info.type == QETH_CARD_TYPE_OSN) |
| hdr = (struct qeth_hdr *)skb->data; |
| else { |
| if (card->info.type == QETH_CARD_TYPE_IQD) { |
| new_skb = skb; |
| data_offset = ETH_HLEN; |
| hd_len = ETH_HLEN; |
| hdr = kmem_cache_alloc(qeth_core_header_cache, |
| GFP_ATOMIC); |
| if (!hdr) |
| goto tx_drop; |
| elements_needed++; |
| skb_reset_mac_header(new_skb); |
| qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type); |
| hdr->hdr.l2.pkt_length = new_skb->len; |
| memcpy(((char *)hdr) + sizeof(struct qeth_hdr), |
| skb_mac_header(new_skb), ETH_HLEN); |
| } else { |
| /* create a clone with writeable headroom */ |
| new_skb = skb_realloc_headroom(skb, |
| sizeof(struct qeth_hdr)); |
| if (!new_skb) |
| goto tx_drop; |
| hdr = (struct qeth_hdr *)skb_push(new_skb, |
| sizeof(struct qeth_hdr)); |
| skb_set_mac_header(new_skb, sizeof(struct qeth_hdr)); |
| qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type); |
| } |
| } |
| |
| elements = qeth_get_elements_no(card, (void *)hdr, new_skb, |
| elements_needed); |
| if (!elements) { |
| if (data_offset >= 0) |
| kmem_cache_free(qeth_core_header_cache, hdr); |
| goto tx_drop; |
| } |
| |
| if (card->info.type != QETH_CARD_TYPE_IQD) |
| rc = qeth_do_send_packet(card, queue, new_skb, hdr, |
| elements); |
| else |
| rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr, |
| elements, data_offset, hd_len); |
| if (!rc) { |
| card->stats.tx_packets++; |
| card->stats.tx_bytes += tx_bytes; |
| if (new_skb != skb) |
| dev_kfree_skb_any(skb); |
| rc = NETDEV_TX_OK; |
| } else { |
| if (data_offset >= 0) |
| kmem_cache_free(qeth_core_header_cache, hdr); |
| |
| if (rc == -EBUSY) { |
| if (new_skb != skb) |
| dev_kfree_skb_any(new_skb); |
| return NETDEV_TX_BUSY; |
| } else |
| goto tx_drop; |
| } |
| |
| netif_wake_queue(dev); |
| if (card->options.performance_stats) |
| card->perf_stats.outbound_time += qeth_get_micros() - |
| card->perf_stats.outbound_start_time; |
| return rc; |
| |
| tx_drop: |
| card->stats.tx_dropped++; |
| card->stats.tx_errors++; |
| if ((new_skb != skb) && new_skb) |
| dev_kfree_skb_any(new_skb); |
| dev_kfree_skb_any(skb); |
| netif_wake_queue(dev); |
| return NETDEV_TX_OK; |
| } |
| |
| static void qeth_l2_qdio_input_handler(struct ccw_device *ccwdev, |
| unsigned int qdio_err, unsigned int queue, |
| int first_element, int count, unsigned long card_ptr) |
| { |
| struct net_device *net_dev; |
| struct qeth_card *card; |
| struct qeth_qdio_buffer *buffer; |
| int index; |
| int i; |
| |
| card = (struct qeth_card *) card_ptr; |
| net_dev = card->dev; |
| if (card->options.performance_stats) { |
| card->perf_stats.inbound_cnt++; |
| card->perf_stats.inbound_start_time = qeth_get_micros(); |
| } |
| if (qdio_err & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) { |
| QETH_DBF_TEXT(TRACE, 1, "qdinchk"); |
| QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); |
| QETH_DBF_TEXT_(TRACE, 1, "%04X%04X", first_element, |
| count); |
| QETH_DBF_TEXT_(TRACE, 1, "%04X", queue); |
| qeth_schedule_recovery(card); |
| return; |
| } |
| for (i = first_element; i < (first_element + count); ++i) { |
| index = i % QDIO_MAX_BUFFERS_PER_Q; |
| buffer = &card->qdio.in_q->bufs[index]; |
| if (!(qdio_err && |
| qeth_check_qdio_errors(card, buffer->buffer, qdio_err, |
| "qinerr"))) |
| qeth_l2_process_inbound_buffer(card, buffer, index); |
| /* clear buffer and give back to hardware */ |
| qeth_put_buffer_pool_entry(card, buffer->pool_entry); |
| qeth_queue_input_buffer(card, index); |
| } |
| if (card->options.performance_stats) |
| card->perf_stats.inbound_time += qeth_get_micros() - |
| card->perf_stats.inbound_start_time; |
| } |
| |
| static int qeth_l2_open(struct net_device *dev) |
| { |
| struct qeth_card *card = dev->ml_priv; |
| |
| QETH_DBF_TEXT(TRACE, 4, "qethopen"); |
| if (card->state != CARD_STATE_SOFTSETUP) |
| return -ENODEV; |
| |
| if ((card->info.type != QETH_CARD_TYPE_OSN) && |
| (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) { |
| QETH_DBF_TEXT(TRACE, 4, "nomacadr"); |
| return -EPERM; |
| } |
| card->data.state = CH_STATE_UP; |
| card->state = CARD_STATE_UP; |
| netif_start_queue(dev); |
| |
| if (!card->lan_online && netif_carrier_ok(dev)) |
| netif_carrier_off(dev); |
| return 0; |
| } |
| |
| |
| static int qeth_l2_stop(struct net_device *dev) |
| { |
| struct qeth_card *card = dev->ml_priv; |
| |
| QETH_DBF_TEXT(TRACE, 4, "qethstop"); |
| netif_tx_disable(dev); |
| if (card->state == CARD_STATE_UP) |
| card->state = CARD_STATE_SOFTSETUP; |
| return 0; |
| } |
| |
| static int qeth_l2_probe_device(struct ccwgroup_device *gdev) |
| { |
| struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| |
| INIT_LIST_HEAD(&card->vid_list); |
| INIT_LIST_HEAD(&card->mc_list); |
| card->options.layer2 = 1; |
| card->discipline.input_handler = (qdio_handler_t *) |
| qeth_l2_qdio_input_handler; |
| card->discipline.output_handler = (qdio_handler_t *) |
| qeth_qdio_output_handler; |
| card->discipline.recover = qeth_l2_recover; |
| return 0; |
| } |
| |
| static void qeth_l2_remove_device(struct ccwgroup_device *cgdev) |
| { |
| struct qeth_card *card = dev_get_drvdata(&cgdev->dev); |
| |
| qeth_set_allowed_threads(card, 0, 1); |
| wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); |
| |
| if (cgdev->state == CCWGROUP_ONLINE) { |
| card->use_hard_stop = 1; |
| qeth_l2_set_offline(cgdev); |
| } |
| |
| if (card->dev) { |
| unregister_netdev(card->dev); |
| card->dev = NULL; |
| } |
| |
| qeth_l2_del_all_mc(card); |
| return; |
| } |
| |
| static const struct ethtool_ops qeth_l2_ethtool_ops = { |
| .get_link = ethtool_op_get_link, |
| .get_strings = qeth_core_get_strings, |
| .get_ethtool_stats = qeth_core_get_ethtool_stats, |
| .get_sset_count = qeth_core_get_sset_count, |
| .get_drvinfo = qeth_core_get_drvinfo, |
| .get_settings = qeth_core_ethtool_get_settings, |
| }; |
| |
| static const struct ethtool_ops qeth_l2_osn_ops = { |
| .get_strings = qeth_core_get_strings, |
| .get_ethtool_stats = qeth_core_get_ethtool_stats, |
| .get_sset_count = qeth_core_get_sset_count, |
| .get_drvinfo = qeth_core_get_drvinfo, |
| }; |
| |
| static const struct net_device_ops qeth_l2_netdev_ops = { |
| .ndo_open = qeth_l2_open, |
| .ndo_stop = qeth_l2_stop, |
| .ndo_get_stats = qeth_get_stats, |
| .ndo_start_xmit = qeth_l2_hard_start_xmit, |
| .ndo_validate_addr = eth_validate_addr, |
| .ndo_set_multicast_list = qeth_l2_set_multicast_list, |
| .ndo_do_ioctl = qeth_l2_do_ioctl, |
| .ndo_set_mac_address = qeth_l2_set_mac_address, |
| .ndo_change_mtu = qeth_change_mtu, |
| .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid, |
| .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid, |
| .ndo_tx_timeout = qeth_tx_timeout, |
| }; |
| |
| static int qeth_l2_setup_netdev(struct qeth_card *card) |
| { |
| switch (card->info.type) { |
| case QETH_CARD_TYPE_OSAE: |
| card->dev = alloc_etherdev(0); |
| break; |
| case QETH_CARD_TYPE_IQD: |
| card->dev = alloc_netdev(0, "hsi%d", ether_setup); |
| break; |
| case QETH_CARD_TYPE_OSN: |
| card->dev = alloc_netdev(0, "osn%d", ether_setup); |
| card->dev->flags |= IFF_NOARP; |
| break; |
| default: |
| card->dev = alloc_etherdev(0); |
| } |
| |
| if (!card->dev) |
| return -ENODEV; |
| |
| card->dev->ml_priv = card; |
| card->dev->watchdog_timeo = QETH_TX_TIMEOUT; |
| card->dev->mtu = card->info.initial_mtu; |
| card->dev->netdev_ops = &qeth_l2_netdev_ops; |
| if (card->info.type != QETH_CARD_TYPE_OSN) |
| SET_ETHTOOL_OPS(card->dev, &qeth_l2_ethtool_ops); |
| else |
| SET_ETHTOOL_OPS(card->dev, &qeth_l2_osn_ops); |
| card->dev->features |= NETIF_F_HW_VLAN_FILTER; |
| card->info.broadcast_capable = 1; |
| qeth_l2_request_initial_mac(card); |
| SET_NETDEV_DEV(card->dev, &card->gdev->dev); |
| return register_netdev(card->dev); |
| } |
| |
| static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode) |
| { |
| struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| int rc = 0; |
| enum qeth_card_states recover_flag; |
| |
| BUG_ON(!card); |
| QETH_DBF_TEXT(SETUP, 2, "setonlin"); |
| QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); |
| |
| recover_flag = card->state; |
| rc = qeth_core_hardsetup_card(card); |
| if (rc) { |
| QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
| rc = -ENODEV; |
| goto out_remove; |
| } |
| |
| if (!card->dev && qeth_l2_setup_netdev(card)) { |
| rc = -ENODEV; |
| goto out_remove; |
| } |
| |
| if (card->info.type != QETH_CARD_TYPE_OSN) |
| qeth_l2_send_setmac(card, &card->dev->dev_addr[0]); |
| |
| card->state = CARD_STATE_HARDSETUP; |
| qeth_print_status_message(card); |
| |
| /* softsetup */ |
| QETH_DBF_TEXT(SETUP, 2, "softsetp"); |
| |
| rc = qeth_send_startlan(card); |
| if (rc) { |
| QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
| if (rc == 0xe080) { |
| dev_warn(&card->gdev->dev, |
| "The LAN is offline\n"); |
| card->lan_online = 0; |
| return 0; |
| } |
| rc = -ENODEV; |
| goto out_remove; |
| } else |
| card->lan_online = 1; |
| |
| if (card->info.type != QETH_CARD_TYPE_OSN) { |
| /* configure isolation level */ |
| qeth_set_access_ctrl_online(card); |
| qeth_l2_process_vlans(card, 0); |
| } |
| |
| netif_tx_disable(card->dev); |
| |
| rc = qeth_init_qdio_queues(card); |
| if (rc) { |
| QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); |
| rc = -ENODEV; |
| goto out_remove; |
| } |
| card->state = CARD_STATE_SOFTSETUP; |
| netif_carrier_on(card->dev); |
| |
| qeth_set_allowed_threads(card, 0xffffffff, 0); |
| if (recover_flag == CARD_STATE_RECOVER) { |
| if (recovery_mode && |
| card->info.type != QETH_CARD_TYPE_OSN) { |
| qeth_l2_open(card->dev); |
| } else { |
| rtnl_lock(); |
| dev_open(card->dev); |
| rtnl_unlock(); |
| } |
| /* this also sets saved unicast addresses */ |
| qeth_l2_set_multicast_list(card->dev); |
| } |
| /* let user_space know that device is online */ |
| kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); |
| return 0; |
| |
| out_remove: |
| card->use_hard_stop = 1; |
| qeth_l2_stop_card(card, 0); |
| ccw_device_set_offline(CARD_DDEV(card)); |
| ccw_device_set_offline(CARD_WDEV(card)); |
| ccw_device_set_offline(CARD_RDEV(card)); |
| if (recover_flag == CARD_STATE_RECOVER) |
| card->state = CARD_STATE_RECOVER; |
| else |
| card->state = CARD_STATE_DOWN; |
| return rc; |
| } |
| |
| static int qeth_l2_set_online(struct ccwgroup_device *gdev) |
| { |
| return __qeth_l2_set_online(gdev, 0); |
| } |
| |
| static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev, |
| int recovery_mode) |
| { |
| struct qeth_card *card = dev_get_drvdata(&cgdev->dev); |
| int rc = 0, rc2 = 0, rc3 = 0; |
| enum qeth_card_states recover_flag; |
| |
| QETH_DBF_TEXT(SETUP, 3, "setoffl"); |
| QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *)); |
| |
| if (card->dev && netif_carrier_ok(card->dev)) |
| netif_carrier_off(card->dev); |
| recover_flag = card->state; |
| qeth_l2_stop_card(card, recovery_mode); |
| rc = ccw_device_set_offline(CARD_DDEV(card)); |
| rc2 = ccw_device_set_offline(CARD_WDEV(card)); |
| rc3 = ccw_device_set_offline(CARD_RDEV(card)); |
| if (!rc) |
| rc = (rc2) ? rc2 : rc3; |
| if (rc) |
| QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
| if (recover_flag == CARD_STATE_UP) |
| card->state = CARD_STATE_RECOVER; |
| /* let user_space know that device is offline */ |
| kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE); |
| return 0; |
| } |
| |
| static int qeth_l2_set_offline(struct ccwgroup_device *cgdev) |
| { |
| return __qeth_l2_set_offline(cgdev, 0); |
| } |
| |
| static int qeth_l2_recover(void *ptr) |
| { |
| struct qeth_card *card; |
| int rc = 0; |
| |
| card = (struct qeth_card *) ptr; |
| QETH_DBF_TEXT(TRACE, 2, "recover1"); |
| QETH_DBF_HEX(TRACE, 2, &card, sizeof(void *)); |
| if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) |
| return 0; |
| QETH_DBF_TEXT(TRACE, 2, "recover2"); |
| dev_warn(&card->gdev->dev, |
| "A recovery process has been started for the device\n"); |
| card->use_hard_stop = 1; |
| __qeth_l2_set_offline(card->gdev, 1); |
| rc = __qeth_l2_set_online(card->gdev, 1); |
| /* don't run another scheduled recovery */ |
| qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); |
| qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD); |
| if (!rc) |
| dev_info(&card->gdev->dev, |
| "Device successfully recovered!\n"); |
| else { |
| rtnl_lock(); |
| dev_close(card->dev); |
| rtnl_unlock(); |
| dev_warn(&card->gdev->dev, "The qeth device driver " |
| "failed to recover an error on the device\n"); |
| } |
| return 0; |
| } |
| |
| static int __init qeth_l2_init(void) |
| { |
| pr_info("register layer 2 discipline\n"); |
| return 0; |
| } |
| |
| static void __exit qeth_l2_exit(void) |
| { |
| pr_info("unregister layer 2 discipline\n"); |
| } |
| |
| static void qeth_l2_shutdown(struct ccwgroup_device *gdev) |
| { |
| struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| qeth_qdio_clear_card(card, 0); |
| qeth_clear_qdio_buffers(card); |
| } |
| |
| static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev) |
| { |
| struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| |
| if (card->dev) |
| netif_device_detach(card->dev); |
| qeth_set_allowed_threads(card, 0, 1); |
| wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); |
| if (gdev->state == CCWGROUP_OFFLINE) |
| return 0; |
| if (card->state == CARD_STATE_UP) { |
| card->use_hard_stop = 1; |
| __qeth_l2_set_offline(card->gdev, 1); |
| } else |
| __qeth_l2_set_offline(card->gdev, 0); |
| return 0; |
| } |
| |
| static int qeth_l2_pm_resume(struct ccwgroup_device *gdev) |
| { |
| struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| int rc = 0; |
| |
| if (gdev->state == CCWGROUP_OFFLINE) |
| goto out; |
| |
| if (card->state == CARD_STATE_RECOVER) { |
| rc = __qeth_l2_set_online(card->gdev, 1); |
| if (rc) { |
| rtnl_lock(); |
| dev_close(card->dev); |
| rtnl_unlock(); |
| } |
| } else |
| rc = __qeth_l2_set_online(card->gdev, 0); |
| out: |
| qeth_set_allowed_threads(card, 0xffffffff, 0); |
| if (card->dev) |
| netif_device_attach(card->dev); |
| if (rc) |
| dev_warn(&card->gdev->dev, "The qeth device driver " |
| "failed to recover an error on the device\n"); |
| return rc; |
| } |
| |
| struct ccwgroup_driver qeth_l2_ccwgroup_driver = { |
| .probe = qeth_l2_probe_device, |
| .remove = qeth_l2_remove_device, |
| .set_online = qeth_l2_set_online, |
| .set_offline = qeth_l2_set_offline, |
| .shutdown = qeth_l2_shutdown, |
| .freeze = qeth_l2_pm_suspend, |
| .thaw = qeth_l2_pm_resume, |
| .restore = qeth_l2_pm_resume, |
| }; |
| EXPORT_SYMBOL_GPL(qeth_l2_ccwgroup_driver); |
| |
| static int qeth_osn_send_control_data(struct qeth_card *card, int len, |
| struct qeth_cmd_buffer *iob) |
| { |
| unsigned long flags; |
| int rc = 0; |
| |
| QETH_DBF_TEXT(TRACE, 5, "osndctrd"); |
| |
| wait_event(card->wait_q, |
| atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0); |
| qeth_prepare_control_data(card, len, iob); |
| QETH_DBF_TEXT(TRACE, 6, "osnoirqp"); |
| spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); |
| rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, |
| (addr_t) iob, 0, 0); |
| spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); |
| if (rc) { |
| QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: " |
| "ccw_device_start rc = %i\n", rc); |
| QETH_DBF_TEXT_(TRACE, 2, " err%d", rc); |
| qeth_release_buffer(iob->channel, iob); |
| atomic_set(&card->write.irq_pending, 0); |
| wake_up(&card->wait_q); |
| } |
| return rc; |
| } |
| |
| static int qeth_osn_send_ipa_cmd(struct qeth_card *card, |
| struct qeth_cmd_buffer *iob, int data_len) |
| { |
| u16 s1, s2; |
| |
| QETH_DBF_TEXT(TRACE, 4, "osndipa"); |
| |
| qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2); |
| s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len); |
| s2 = (u16)data_len; |
| memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); |
| memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); |
| memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); |
| memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); |
| return qeth_osn_send_control_data(card, s1, iob); |
| } |
| |
| int qeth_osn_assist(struct net_device *dev, void *data, int data_len) |
| { |
| struct qeth_cmd_buffer *iob; |
| struct qeth_card *card; |
| int rc; |
| |
| QETH_DBF_TEXT(TRACE, 2, "osnsdmc"); |
| if (!dev) |
| return -ENODEV; |
| card = dev->ml_priv; |
| if (!card) |
| return -ENODEV; |
| if ((card->state != CARD_STATE_UP) && |
| (card->state != CARD_STATE_SOFTSETUP)) |
| return -ENODEV; |
| iob = qeth_wait_for_buffer(&card->write); |
| memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len); |
| rc = qeth_osn_send_ipa_cmd(card, iob, data_len); |
| return rc; |
| } |
| EXPORT_SYMBOL(qeth_osn_assist); |
| |
| int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev, |
| int (*assist_cb)(struct net_device *, void *), |
| int (*data_cb)(struct sk_buff *)) |
| { |
| struct qeth_card *card; |
| |
| QETH_DBF_TEXT(TRACE, 2, "osnreg"); |
| *dev = qeth_l2_netdev_by_devno(read_dev_no); |
| if (*dev == NULL) |
| return -ENODEV; |
| card = (*dev)->ml_priv; |
| if (!card) |
| return -ENODEV; |
| if ((assist_cb == NULL) || (data_cb == NULL)) |
| return -EINVAL; |
| card->osn_info.assist_cb = assist_cb; |
| card->osn_info.data_cb = data_cb; |
| return 0; |
| } |
| EXPORT_SYMBOL(qeth_osn_register); |
| |
| void qeth_osn_deregister(struct net_device *dev) |
| { |
| struct qeth_card *card; |
| |
| QETH_DBF_TEXT(TRACE, 2, "osndereg"); |
| if (!dev) |
| return; |
| card = dev->ml_priv; |
| if (!card) |
| return; |
| card->osn_info.assist_cb = NULL; |
| card->osn_info.data_cb = NULL; |
| return; |
| } |
| EXPORT_SYMBOL(qeth_osn_deregister); |
| |
| module_init(qeth_l2_init); |
| module_exit(qeth_l2_exit); |
| MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); |
| MODULE_DESCRIPTION("qeth layer 2 discipline"); |
| MODULE_LICENSE("GPL"); |