2 * Copyright IBM Corp. 2007, 2009
3 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
4 * Frank Pavlic <fpavlic@de.ibm.com>,
5 * Thomas Spatzier <tspat@de.ibm.com>,
6 * Frank Blaschka <frank.blaschka@de.ibm.com>
9 #define KMSG_COMPONENT "qeth"
10 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
12 #include <linux/module.h>
13 #include <linux/moduleparam.h>
14 #include <linux/string.h>
15 #include <linux/errno.h>
16 #include <linux/kernel.h>
17 #include <linux/slab.h>
18 #include <linux/etherdevice.h>
19 #include <linux/mii.h>
21 #include <linux/list.h>
22 #include <linux/hash.h>
23 #include <linux/hashtable.h>
24 #include <linux/string.h>
25 #include "qeth_core.h"
28 static int qeth_l2_set_offline(struct ccwgroup_device *);
29 static int qeth_l2_stop(struct net_device *);
30 static int qeth_l2_send_delmac(struct qeth_card *, __u8 *);
31 static int qeth_l2_send_setdelmac(struct qeth_card *, __u8 *,
33 static void qeth_l2_set_rx_mode(struct net_device *);
34 static int qeth_l2_recover(void *);
35 static void qeth_bridgeport_query_support(struct qeth_card *card);
36 static void qeth_bridge_state_change(struct qeth_card *card,
37 struct qeth_ipa_cmd *cmd);
38 static void qeth_bridge_host_event(struct qeth_card *card,
39 struct qeth_ipa_cmd *cmd);
41 static int qeth_l2_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
43 struct qeth_card *card = dev->ml_priv;
44 struct mii_ioctl_data *mii_data;
50 if (!qeth_card_hw_is_reachable(card))
53 if (card->info.type == QETH_CARD_TYPE_OSN)
57 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
58 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
60 case SIOC_QETH_GET_CARD_TYPE:
61 if ((card->info.type == QETH_CARD_TYPE_OSD ||
62 card->info.type == QETH_CARD_TYPE_OSM ||
63 card->info.type == QETH_CARD_TYPE_OSX) &&
69 mii_data = if_mii(rq);
73 mii_data = if_mii(rq);
74 if (mii_data->phy_id != 0)
77 mii_data->val_out = qeth_mdio_read(dev,
78 mii_data->phy_id, mii_data->reg_num);
80 case SIOC_QETH_QUERY_OAT:
81 rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data);
87 QETH_CARD_TEXT_(card, 2, "ioce%d", rc);
91 static int qeth_l2_verify_dev(struct net_device *dev)
93 struct qeth_card *card;
97 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
98 list_for_each_entry(card, &qeth_core_card_list.list, list) {
99 if (card->dev == dev) {
104 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
109 static struct net_device *qeth_l2_netdev_by_devno(unsigned char *read_dev_no)
111 struct qeth_card *card;
112 struct net_device *ndev;
115 struct ccw_dev_id read_devid;
118 memcpy(&temp_dev_no, read_dev_no, 2);
119 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
120 list_for_each_entry(card, &qeth_core_card_list.list, list) {
121 ccw_device_get_id(CARD_RDEV(card), &read_devid);
122 if (read_devid.devno == temp_dev_no) {
127 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
131 static int qeth_setdel_makerc(struct qeth_card *card, int retcode)
136 QETH_CARD_TEXT_(card, 2, "err%04x", retcode);
141 case IPA_RC_L2_UNSUPPORTED_CMD:
144 case IPA_RC_L2_ADDR_TABLE_FULL:
147 case IPA_RC_L2_DUP_MAC:
148 case IPA_RC_L2_DUP_LAYER3_MAC:
151 case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP:
152 case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP:
155 case IPA_RC_L2_MAC_NOT_FOUND:
168 static int qeth_l2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
172 QETH_CARD_TEXT(card, 2, "L2Sgmac");
173 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
176 QETH_DBF_MESSAGE(2, "Group MAC %pM already existing on %s\n",
177 mac, QETH_CARD_IFNAME(card));
179 QETH_DBF_MESSAGE(2, "Could not set group MAC %pM on %s: %d\n",
180 mac, QETH_CARD_IFNAME(card), rc);
184 static int qeth_l2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
188 QETH_CARD_TEXT(card, 2, "L2Dgmac");
189 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
193 "Could not delete group MAC %pM on %s: %d\n",
194 mac, QETH_CARD_IFNAME(card), rc);
198 static inline u32 qeth_l2_mac_hash(const u8 *addr)
200 return get_unaligned((u32 *)(&addr[2]));
203 static int qeth_l2_write_mac(struct qeth_card *card, struct qeth_mac *mac)
209 rc = qeth_setdel_makerc(card,
210 qeth_l2_send_setdelmac(card, mac->mac_addr,
213 rc = qeth_setdel_makerc(card,
214 qeth_l2_send_setgroupmac(card, mac->mac_addr));
219 static void qeth_l2_del_all_macs(struct qeth_card *card, int del)
221 struct qeth_mac *mac;
222 struct hlist_node *tmp;
225 spin_lock_bh(&card->mclock);
226 hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) {
229 qeth_l2_send_setdelmac(card, mac->mac_addr,
232 qeth_l2_send_delgroupmac(card, mac->mac_addr);
234 hash_del(&mac->hnode);
237 spin_unlock_bh(&card->mclock);
240 static inline int qeth_l2_get_cast_type(struct qeth_card *card,
243 if (card->info.type == QETH_CARD_TYPE_OSN)
245 if (is_broadcast_ether_addr(skb->data))
246 return RTN_BROADCAST;
247 if (is_multicast_ether_addr(skb->data))
248 return RTN_MULTICAST;
252 static inline void qeth_l2_hdr_csum(struct qeth_card *card,
253 struct qeth_hdr *hdr, struct sk_buff *skb)
255 struct iphdr *iph = ip_hdr(skb);
257 /* tcph->check contains already the pseudo hdr checksum
258 * so just set the header flags
260 if (iph->protocol == IPPROTO_UDP)
261 hdr->hdr.l2.flags[1] |= QETH_HDR_EXT_UDP;
262 hdr->hdr.l2.flags[1] |= QETH_HDR_EXT_CSUM_TRANSP_REQ |
263 QETH_HDR_EXT_CSUM_HDR_REQ;
265 if (card->options.performance_stats)
266 card->perf_stats.tx_csum++;
269 static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
270 struct sk_buff *skb, int cast_type)
272 struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb);
274 memset(hdr, 0, sizeof(struct qeth_hdr));
275 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
277 /* set byte byte 3 to casting flags */
278 if (cast_type == RTN_MULTICAST)
279 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST;
280 else if (cast_type == RTN_BROADCAST)
281 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST;
283 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST;
285 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
286 /* VSWITCH relies on the VLAN
287 * information to be present in
289 if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) {
290 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN;
291 hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI);
295 static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card,
296 struct qeth_reply *reply, unsigned long data)
298 struct qeth_ipa_cmd *cmd;
300 QETH_CARD_TEXT(card, 2, "L2sdvcb");
301 cmd = (struct qeth_ipa_cmd *) data;
302 if (cmd->hdr.return_code) {
303 QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. "
304 "Continuing\n", cmd->data.setdelvlan.vlan_id,
305 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
306 QETH_CARD_TEXT_(card, 2, "L2VL%4x", cmd->hdr.command);
307 QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code);
312 static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i,
313 enum qeth_ipa_cmds ipacmd)
315 struct qeth_ipa_cmd *cmd;
316 struct qeth_cmd_buffer *iob;
318 QETH_CARD_TEXT_(card, 4, "L2sdv%x", ipacmd);
319 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
322 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
323 cmd->data.setdelvlan.vlan_id = i;
324 return qeth_send_ipa_cmd(card, iob,
325 qeth_l2_send_setdelvlan_cb, NULL);
328 static void qeth_l2_process_vlans(struct qeth_card *card)
330 struct qeth_vlan_vid *id;
331 QETH_CARD_TEXT(card, 3, "L2prcvln");
332 spin_lock_bh(&card->vlanlock);
333 list_for_each_entry(id, &card->vid_list, list) {
334 qeth_l2_send_setdelvlan(card, id->vid, IPA_CMD_SETVLAN);
336 spin_unlock_bh(&card->vlanlock);
339 static int qeth_l2_vlan_rx_add_vid(struct net_device *dev,
340 __be16 proto, u16 vid)
342 struct qeth_card *card = dev->ml_priv;
343 struct qeth_vlan_vid *id;
346 QETH_CARD_TEXT_(card, 4, "aid:%d", vid);
349 if (card->info.type == QETH_CARD_TYPE_OSM) {
350 QETH_CARD_TEXT(card, 3, "aidOSM");
353 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
354 QETH_CARD_TEXT(card, 3, "aidREC");
357 id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC);
360 rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
365 spin_lock_bh(&card->vlanlock);
366 list_add_tail(&id->list, &card->vid_list);
367 spin_unlock_bh(&card->vlanlock);
374 static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev,
375 __be16 proto, u16 vid)
377 struct qeth_vlan_vid *id, *tmpid = NULL;
378 struct qeth_card *card = dev->ml_priv;
381 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
382 if (card->info.type == QETH_CARD_TYPE_OSM) {
383 QETH_CARD_TEXT(card, 3, "kidOSM");
386 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
387 QETH_CARD_TEXT(card, 3, "kidREC");
390 spin_lock_bh(&card->vlanlock);
391 list_for_each_entry(id, &card->vid_list, list) {
392 if (id->vid == vid) {
398 spin_unlock_bh(&card->vlanlock);
400 rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
403 qeth_l2_set_rx_mode(card->dev);
407 static void qeth_l2_stop_card(struct qeth_card *card, int recovery_mode)
409 QETH_DBF_TEXT(SETUP , 2, "stopcard");
410 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
412 qeth_set_allowed_threads(card, 0, 1);
413 if (card->read.state == CH_STATE_UP &&
414 card->write.state == CH_STATE_UP &&
415 (card->state == CARD_STATE_UP)) {
417 card->info.type != QETH_CARD_TYPE_OSN) {
418 qeth_l2_stop(card->dev);
421 dev_close(card->dev);
424 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
425 card->state = CARD_STATE_SOFTSETUP;
427 if (card->state == CARD_STATE_SOFTSETUP) {
428 qeth_l2_del_all_macs(card, 0);
429 qeth_clear_ipacmd_list(card);
430 card->state = CARD_STATE_HARDSETUP;
432 if (card->state == CARD_STATE_HARDSETUP) {
433 qeth_qdio_clear_card(card, 0);
434 qeth_clear_qdio_buffers(card);
435 qeth_clear_working_pool_list(card);
436 card->state = CARD_STATE_DOWN;
438 if (card->state == CARD_STATE_DOWN) {
439 qeth_clear_cmd_buffers(&card->read);
440 qeth_clear_cmd_buffers(&card->write);
444 static int qeth_l2_process_inbound_buffer(struct qeth_card *card,
445 int budget, int *done)
449 struct qeth_hdr *hdr;
453 WARN_ON_ONCE(!budget);
455 skb = qeth_core_get_next_skb(card,
456 &card->qdio.in_q->bufs[card->rx.b_index],
457 &card->rx.b_element, &card->rx.e_offset, &hdr);
462 skb->dev = card->dev;
463 switch (hdr->hdr.l2.id) {
464 case QETH_HEADER_TYPE_LAYER2:
465 skb->pkt_type = PACKET_HOST;
466 skb->protocol = eth_type_trans(skb, skb->dev);
467 if ((card->dev->features & NETIF_F_RXCSUM)
468 && ((hdr->hdr.l2.flags[1] &
469 (QETH_HDR_EXT_CSUM_HDR_REQ |
470 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
471 (QETH_HDR_EXT_CSUM_HDR_REQ |
472 QETH_HDR_EXT_CSUM_TRANSP_REQ)))
473 skb->ip_summed = CHECKSUM_UNNECESSARY;
475 skb->ip_summed = CHECKSUM_NONE;
476 if (skb->protocol == htons(ETH_P_802_2))
477 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
479 napi_gro_receive(&card->napi, skb);
481 case QETH_HEADER_TYPE_OSN:
482 if (card->info.type == QETH_CARD_TYPE_OSN) {
483 skb_push(skb, sizeof(struct qeth_hdr));
484 skb_copy_to_linear_data(skb, hdr,
485 sizeof(struct qeth_hdr));
487 card->osn_info.data_cb(skb);
492 dev_kfree_skb_any(skb);
493 QETH_CARD_TEXT(card, 3, "inbunkno");
494 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
499 card->stats.rx_packets++;
500 card->stats.rx_bytes += len;
505 static int qeth_l2_poll(struct napi_struct *napi, int budget)
507 struct qeth_card *card = container_of(napi, struct qeth_card, napi);
509 struct qeth_qdio_buffer *buffer;
511 int new_budget = budget;
513 if (card->options.performance_stats) {
514 card->perf_stats.inbound_cnt++;
515 card->perf_stats.inbound_start_time = qeth_get_micros();
519 if (!card->rx.b_count) {
520 card->rx.qdio_err = 0;
521 card->rx.b_count = qdio_get_next_buffers(
522 card->data.ccwdev, 0, &card->rx.b_index,
524 if (card->rx.b_count <= 0) {
525 card->rx.b_count = 0;
529 &card->qdio.in_q->bufs[card->rx.b_index]
531 card->rx.e_offset = 0;
534 while (card->rx.b_count) {
535 buffer = &card->qdio.in_q->bufs[card->rx.b_index];
536 if (!(card->rx.qdio_err &&
537 qeth_check_qdio_errors(card, buffer->buffer,
538 card->rx.qdio_err, "qinerr")))
539 work_done += qeth_l2_process_inbound_buffer(
540 card, new_budget, &done);
545 if (card->options.performance_stats)
546 card->perf_stats.bufs_rec++;
547 qeth_put_buffer_pool_entry(card,
549 qeth_queue_input_buffer(card, card->rx.b_index);
551 if (card->rx.b_count) {
553 (card->rx.b_index + 1) %
554 QDIO_MAX_BUFFERS_PER_Q;
557 ->bufs[card->rx.b_index]
559 card->rx.e_offset = 0;
563 if (work_done >= budget)
566 new_budget = budget - work_done;
571 if (qdio_start_irq(card->data.ccwdev, 0))
572 napi_schedule(&card->napi);
574 if (card->options.performance_stats)
575 card->perf_stats.inbound_time += qeth_get_micros() -
576 card->perf_stats.inbound_start_time;
580 static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac,
581 enum qeth_ipa_cmds ipacmd)
583 struct qeth_ipa_cmd *cmd;
584 struct qeth_cmd_buffer *iob;
586 QETH_CARD_TEXT(card, 2, "L2sdmac");
587 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
590 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
591 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
592 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
593 return qeth_send_ipa_cmd(card, iob, NULL, NULL);
596 static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac)
600 QETH_CARD_TEXT(card, 2, "L2Setmac");
601 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
604 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
605 memcpy(card->dev->dev_addr, mac, OSA_ADDR_LEN);
606 dev_info(&card->gdev->dev,
607 "MAC address %pM successfully registered on device %s\n",
608 card->dev->dev_addr, card->dev->name);
610 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
613 dev_warn(&card->gdev->dev,
614 "MAC address %pM already exists\n", mac);
617 dev_warn(&card->gdev->dev,
618 "MAC address %pM is not authorized\n", mac);
625 static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac)
629 QETH_CARD_TEXT(card, 2, "L2Delmac");
630 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
632 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
635 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
639 static int qeth_l2_request_initial_mac(struct qeth_card *card)
642 char vendor_pre[] = {0x02, 0x00, 0x00};
644 QETH_DBF_TEXT(SETUP, 2, "doL2init");
645 QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card));
647 if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
648 rc = qeth_query_setadapterparms(card);
650 QETH_DBF_MESSAGE(2, "could not query adapter "
651 "parameters on device %s: x%x\n",
652 CARD_BUS_ID(card), rc);
656 if (card->info.type == QETH_CARD_TYPE_IQD ||
657 card->info.type == QETH_CARD_TYPE_OSM ||
658 card->info.type == QETH_CARD_TYPE_OSX ||
659 card->info.guestlan) {
660 rc = qeth_setadpparms_change_macaddr(card);
662 QETH_DBF_MESSAGE(2, "couldn't get MAC address on "
663 "device %s: x%x\n", CARD_BUS_ID(card), rc);
664 QETH_DBF_TEXT_(SETUP, 2, "1err%04x", rc);
667 QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN);
669 eth_random_addr(card->dev->dev_addr);
670 memcpy(card->dev->dev_addr, vendor_pre, 3);
675 static int qeth_l2_set_mac_address(struct net_device *dev, void *p)
677 struct sockaddr *addr = p;
678 struct qeth_card *card = dev->ml_priv;
681 QETH_CARD_TEXT(card, 3, "setmac");
683 if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) {
684 QETH_CARD_TEXT(card, 3, "setmcINV");
688 if (card->info.type == QETH_CARD_TYPE_OSN ||
689 card->info.type == QETH_CARD_TYPE_OSM ||
690 card->info.type == QETH_CARD_TYPE_OSX) {
691 QETH_CARD_TEXT(card, 3, "setmcTYP");
694 QETH_CARD_HEX(card, 3, addr->sa_data, OSA_ADDR_LEN);
695 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
696 QETH_CARD_TEXT(card, 3, "setmcREC");
699 rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]);
700 if (!rc || (rc == -ENOENT))
701 rc = qeth_l2_send_setmac(card, addr->sa_data);
702 return rc ? -EINVAL : 0;
705 static void qeth_promisc_to_bridge(struct qeth_card *card)
707 struct net_device *dev = card->dev;
708 enum qeth_ipa_promisc_modes promisc_mode;
712 QETH_CARD_TEXT(card, 3, "pmisc2br");
714 if (!card->options.sbp.reflect_promisc)
716 promisc_mode = (dev->flags & IFF_PROMISC) ? SET_PROMISC_MODE_ON
717 : SET_PROMISC_MODE_OFF;
718 if (promisc_mode == card->info.promisc_mode)
721 if (promisc_mode == SET_PROMISC_MODE_ON) {
722 if (card->options.sbp.reflect_promisc_primary)
723 role = QETH_SBP_ROLE_PRIMARY;
725 role = QETH_SBP_ROLE_SECONDARY;
727 role = QETH_SBP_ROLE_NONE;
729 rc = qeth_bridgeport_setrole(card, role);
730 QETH_DBF_TEXT_(SETUP, 2, "bpm%c%04x",
731 (promisc_mode == SET_PROMISC_MODE_ON) ? '+' : '-', rc);
733 card->options.sbp.role = role;
734 card->info.promisc_mode = promisc_mode;
738 /* New MAC address is added to the hash table and marked to be written on card
739 * only if there is not in the hash table storage already
743 qeth_l2_add_mac(struct qeth_card *card, struct netdev_hw_addr *ha, u8 is_uc)
745 struct qeth_mac *mac;
747 hash_for_each_possible(card->mac_htable, mac, hnode,
748 qeth_l2_mac_hash(ha->addr)) {
749 if (is_uc == mac->is_uc &&
750 !memcmp(ha->addr, mac->mac_addr, OSA_ADDR_LEN)) {
751 mac->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
756 mac = kzalloc(sizeof(struct qeth_mac), GFP_ATOMIC);
761 memcpy(mac->mac_addr, ha->addr, OSA_ADDR_LEN);
763 mac->disp_flag = QETH_DISP_ADDR_ADD;
765 hash_add(card->mac_htable, &mac->hnode,
766 qeth_l2_mac_hash(mac->mac_addr));
770 static void qeth_l2_set_rx_mode(struct net_device *dev)
772 struct qeth_card *card = dev->ml_priv;
773 struct netdev_hw_addr *ha;
774 struct qeth_mac *mac;
775 struct hlist_node *tmp;
779 if (card->info.type == QETH_CARD_TYPE_OSN)
782 QETH_CARD_TEXT(card, 3, "setmulti");
783 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
784 (card->state != CARD_STATE_UP))
787 spin_lock_bh(&card->mclock);
789 netdev_for_each_mc_addr(ha, dev)
790 qeth_l2_add_mac(card, ha, 0);
792 netdev_for_each_uc_addr(ha, dev)
793 qeth_l2_add_mac(card, ha, 1);
795 hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) {
796 if (mac->disp_flag == QETH_DISP_ADDR_DELETE) {
798 rc = qeth_l2_send_delgroupmac(card,
801 rc = qeth_l2_send_setdelmac(card, mac->mac_addr,
805 hash_del(&mac->hnode);
808 } else if (mac->disp_flag == QETH_DISP_ADDR_ADD) {
809 rc = qeth_l2_write_mac(card, mac);
811 hash_del(&mac->hnode);
814 mac->disp_flag = QETH_DISP_ADDR_DELETE;
816 mac->disp_flag = QETH_DISP_ADDR_DELETE;
819 spin_unlock_bh(&card->mclock);
821 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
822 qeth_setadp_promisc_mode(card);
824 qeth_promisc_to_bridge(card);
827 static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
830 struct qeth_hdr *hdr = NULL;
832 struct qeth_card *card = dev->ml_priv;
833 struct sk_buff *new_skb = skb;
834 int cast_type = qeth_l2_get_cast_type(card, skb);
835 struct qeth_qdio_out_q *queue;
836 int tx_bytes = skb->len;
837 int data_offset = -1;
838 int elements_needed = 0;
842 if (card->qdio.do_prio_queueing || (cast_type &&
843 card->info.is_multicast_different))
844 queue = card->qdio.out_qs[qeth_get_priority_queue(card, skb,
845 qeth_get_ip_version(skb), cast_type)];
847 queue = card->qdio.out_qs[card->qdio.default_out_queue];
849 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
850 card->stats.tx_carrier_errors++;
854 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
855 (skb->protocol == htons(ETH_P_IPV6)))
858 if (card->options.performance_stats) {
859 card->perf_stats.outbound_cnt++;
860 card->perf_stats.outbound_start_time = qeth_get_micros();
862 netif_stop_queue(dev);
864 /* fix hardware limitation: as long as we do not have sbal
865 * chaining we can not send long frag lists
867 if ((card->info.type != QETH_CARD_TYPE_IQD) &&
868 !qeth_get_elements_no(card, new_skb, 0)) {
869 int lin_rc = skb_linearize(new_skb);
871 if (card->options.performance_stats) {
873 card->perf_stats.tx_linfail++;
875 card->perf_stats.tx_lin++;
881 if (card->info.type == QETH_CARD_TYPE_OSN)
882 hdr = (struct qeth_hdr *)skb->data;
884 if (card->info.type == QETH_CARD_TYPE_IQD) {
886 data_offset = ETH_HLEN;
888 hdr = kmem_cache_alloc(qeth_core_header_cache,
893 skb_reset_mac_header(new_skb);
894 qeth_l2_fill_header(card, hdr, new_skb, cast_type);
895 hdr->hdr.l2.pkt_length = new_skb->len;
896 memcpy(((char *)hdr) + sizeof(struct qeth_hdr),
897 skb_mac_header(new_skb), ETH_HLEN);
899 /* create a clone with writeable headroom */
900 new_skb = skb_realloc_headroom(skb,
901 sizeof(struct qeth_hdr));
904 hdr = (struct qeth_hdr *)skb_push(new_skb,
905 sizeof(struct qeth_hdr));
906 skb_set_mac_header(new_skb, sizeof(struct qeth_hdr));
907 qeth_l2_fill_header(card, hdr, new_skb, cast_type);
908 if (new_skb->ip_summed == CHECKSUM_PARTIAL)
909 qeth_l2_hdr_csum(card, hdr, new_skb);
913 elements = qeth_get_elements_no(card, new_skb, elements_needed);
915 if (data_offset >= 0)
916 kmem_cache_free(qeth_core_header_cache, hdr);
920 if (card->info.type != QETH_CARD_TYPE_IQD) {
921 if (qeth_hdr_chk_and_bounce(new_skb, &hdr,
922 sizeof(struct qeth_hdr_layer2)))
924 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
927 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
928 elements, data_offset, hd_len);
930 card->stats.tx_packets++;
931 card->stats.tx_bytes += tx_bytes;
932 if (card->options.performance_stats) {
933 nr_frags = skb_shinfo(new_skb)->nr_frags;
935 card->perf_stats.sg_skbs_sent++;
936 /* nr_frags + skb->data */
937 card->perf_stats.sg_frags_sent += nr_frags + 1;
941 dev_kfree_skb_any(skb);
944 if (data_offset >= 0)
945 kmem_cache_free(qeth_core_header_cache, hdr);
949 dev_kfree_skb_any(new_skb);
950 return NETDEV_TX_BUSY;
955 netif_wake_queue(dev);
956 if (card->options.performance_stats)
957 card->perf_stats.outbound_time += qeth_get_micros() -
958 card->perf_stats.outbound_start_time;
962 card->stats.tx_dropped++;
963 card->stats.tx_errors++;
964 if ((new_skb != skb) && new_skb)
965 dev_kfree_skb_any(new_skb);
966 dev_kfree_skb_any(skb);
967 netif_wake_queue(dev);
971 static int __qeth_l2_open(struct net_device *dev)
973 struct qeth_card *card = dev->ml_priv;
976 QETH_CARD_TEXT(card, 4, "qethopen");
977 if (card->state == CARD_STATE_UP)
979 if (card->state != CARD_STATE_SOFTSETUP)
982 if ((card->info.type != QETH_CARD_TYPE_OSN) &&
983 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
984 QETH_CARD_TEXT(card, 4, "nomacadr");
987 card->data.state = CH_STATE_UP;
988 card->state = CARD_STATE_UP;
989 netif_start_queue(dev);
991 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
992 napi_enable(&card->napi);
993 napi_schedule(&card->napi);
999 static int qeth_l2_open(struct net_device *dev)
1001 struct qeth_card *card = dev->ml_priv;
1003 QETH_CARD_TEXT(card, 5, "qethope_");
1004 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
1005 QETH_CARD_TEXT(card, 3, "openREC");
1006 return -ERESTARTSYS;
1008 return __qeth_l2_open(dev);
1011 static int qeth_l2_stop(struct net_device *dev)
1013 struct qeth_card *card = dev->ml_priv;
1015 QETH_CARD_TEXT(card, 4, "qethstop");
1016 netif_tx_disable(dev);
1017 if (card->state == CARD_STATE_UP) {
1018 card->state = CARD_STATE_SOFTSETUP;
1019 napi_disable(&card->napi);
1024 static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
1026 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1028 qeth_l2_create_device_attributes(&gdev->dev);
1029 INIT_LIST_HEAD(&card->vid_list);
1030 hash_init(card->mac_htable);
1031 card->options.layer2 = 1;
1032 card->info.hwtrap = 0;
1036 static void qeth_l2_remove_device(struct ccwgroup_device *cgdev)
1038 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
1040 qeth_l2_remove_device_attributes(&cgdev->dev);
1041 qeth_set_allowed_threads(card, 0, 1);
1042 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
1044 if (cgdev->state == CCWGROUP_ONLINE)
1045 qeth_l2_set_offline(cgdev);
1048 unregister_netdev(card->dev);
1054 static const struct ethtool_ops qeth_l2_ethtool_ops = {
1055 .get_link = ethtool_op_get_link,
1056 .get_strings = qeth_core_get_strings,
1057 .get_ethtool_stats = qeth_core_get_ethtool_stats,
1058 .get_sset_count = qeth_core_get_sset_count,
1059 .get_drvinfo = qeth_core_get_drvinfo,
1060 .get_settings = qeth_core_ethtool_get_settings,
1063 static const struct ethtool_ops qeth_l2_osn_ops = {
1064 .get_strings = qeth_core_get_strings,
1065 .get_ethtool_stats = qeth_core_get_ethtool_stats,
1066 .get_sset_count = qeth_core_get_sset_count,
1067 .get_drvinfo = qeth_core_get_drvinfo,
1070 static const struct net_device_ops qeth_l2_netdev_ops = {
1071 .ndo_open = qeth_l2_open,
1072 .ndo_stop = qeth_l2_stop,
1073 .ndo_get_stats = qeth_get_stats,
1074 .ndo_start_xmit = qeth_l2_hard_start_xmit,
1075 .ndo_validate_addr = eth_validate_addr,
1076 .ndo_set_rx_mode = qeth_l2_set_rx_mode,
1077 .ndo_do_ioctl = qeth_l2_do_ioctl,
1078 .ndo_set_mac_address = qeth_l2_set_mac_address,
1079 .ndo_change_mtu = qeth_change_mtu,
1080 .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid,
1081 .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid,
1082 .ndo_tx_timeout = qeth_tx_timeout,
1083 .ndo_fix_features = qeth_fix_features,
1084 .ndo_set_features = qeth_set_features
1087 static int qeth_l2_setup_netdev(struct qeth_card *card)
1089 switch (card->info.type) {
1090 case QETH_CARD_TYPE_IQD:
1091 card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN,
1094 case QETH_CARD_TYPE_OSN:
1095 card->dev = alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN,
1097 card->dev->flags |= IFF_NOARP;
1100 card->dev = alloc_etherdev(0);
1106 card->dev->ml_priv = card;
1107 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
1108 card->dev->mtu = card->info.initial_mtu;
1109 card->dev->netdev_ops = &qeth_l2_netdev_ops;
1110 card->dev->ethtool_ops =
1111 (card->info.type != QETH_CARD_TYPE_OSN) ?
1112 &qeth_l2_ethtool_ops : &qeth_l2_osn_ops;
1113 card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
1114 if (card->info.type == QETH_CARD_TYPE_OSD && !card->info.guestlan) {
1115 card->dev->hw_features = NETIF_F_SG;
1116 /* OSA 3S and earlier has no RX/TX support */
1117 if (qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
1118 card->dev->hw_features |= NETIF_F_IP_CSUM;
1119 if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
1120 card->dev->hw_features |= NETIF_F_RXCSUM;
1121 /* Turn on SG per default */
1122 card->dev->features |= NETIF_F_SG;
1124 card->info.broadcast_capable = 1;
1125 qeth_l2_request_initial_mac(card);
1126 card->dev->gso_max_size = (QETH_MAX_BUFFER_ELEMENTS(card) - 1) *
1128 card->dev->gso_max_segs = (QETH_MAX_BUFFER_ELEMENTS(card) - 1);
1129 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
1130 netif_napi_add(card->dev, &card->napi, qeth_l2_poll, QETH_NAPI_WEIGHT);
1131 netif_carrier_off(card->dev);
1132 return register_netdev(card->dev);
1135 static int qeth_l2_start_ipassists(struct qeth_card *card)
1137 /* configure isolation level */
1138 if (qeth_set_access_ctrl_online(card, 0))
1143 static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
1145 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1147 enum qeth_card_states recover_flag;
1149 mutex_lock(&card->discipline_mutex);
1150 mutex_lock(&card->conf_mutex);
1151 QETH_DBF_TEXT(SETUP, 2, "setonlin");
1152 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1154 recover_flag = card->state;
1155 rc = qeth_core_hardsetup_card(card);
1157 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
1161 qeth_bridgeport_query_support(card);
1162 if (card->options.sbp.supported_funcs)
1163 dev_info(&card->gdev->dev,
1164 "The device represents a Bridge Capable Port\n");
1165 qeth_trace_features(card);
1167 if (!card->dev && qeth_l2_setup_netdev(card)) {
1172 if (card->info.type != QETH_CARD_TYPE_OSN)
1173 qeth_l2_send_setmac(card, &card->dev->dev_addr[0]);
1175 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
1176 if (card->info.hwtrap &&
1177 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
1178 card->info.hwtrap = 0;
1180 card->info.hwtrap = 0;
1182 qeth_l2_setup_bridgeport_attrs(card);
1184 card->state = CARD_STATE_HARDSETUP;
1185 memset(&card->rx, 0, sizeof(struct qeth_rx));
1186 qeth_print_status_message(card);
1189 QETH_DBF_TEXT(SETUP, 2, "softsetp");
1191 rc = qeth_send_startlan(card);
1193 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
1195 dev_warn(&card->gdev->dev,
1196 "The LAN is offline\n");
1197 card->lan_online = 0;
1203 card->lan_online = 1;
1206 if ((card->info.type == QETH_CARD_TYPE_OSD) ||
1207 (card->info.type == QETH_CARD_TYPE_OSX)) {
1208 rc = qeth_l2_start_ipassists(card);
1213 if (card->info.type != QETH_CARD_TYPE_OSN &&
1214 card->info.type != QETH_CARD_TYPE_OSM)
1215 qeth_l2_process_vlans(card);
1217 netif_tx_disable(card->dev);
1219 rc = qeth_init_qdio_queues(card);
1221 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
1225 card->state = CARD_STATE_SOFTSETUP;
1226 if (card->lan_online)
1227 netif_carrier_on(card->dev);
1229 netif_carrier_off(card->dev);
1231 qeth_set_allowed_threads(card, 0xffffffff, 0);
1232 if (recover_flag == CARD_STATE_RECOVER) {
1233 if (recovery_mode &&
1234 card->info.type != QETH_CARD_TYPE_OSN) {
1235 __qeth_l2_open(card->dev);
1238 dev_open(card->dev);
1241 /* this also sets saved unicast addresses */
1242 qeth_l2_set_rx_mode(card->dev);
1244 /* let user_space know that device is online */
1245 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
1246 mutex_unlock(&card->conf_mutex);
1247 mutex_unlock(&card->discipline_mutex);
1251 qeth_l2_stop_card(card, 0);
1252 ccw_device_set_offline(CARD_DDEV(card));
1253 ccw_device_set_offline(CARD_WDEV(card));
1254 ccw_device_set_offline(CARD_RDEV(card));
1255 qdio_free(CARD_DDEV(card));
1256 if (recover_flag == CARD_STATE_RECOVER)
1257 card->state = CARD_STATE_RECOVER;
1259 card->state = CARD_STATE_DOWN;
1260 mutex_unlock(&card->conf_mutex);
1261 mutex_unlock(&card->discipline_mutex);
1265 static int qeth_l2_set_online(struct ccwgroup_device *gdev)
1267 return __qeth_l2_set_online(gdev, 0);
1270 static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev,
1273 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
1274 int rc = 0, rc2 = 0, rc3 = 0;
1275 enum qeth_card_states recover_flag;
1277 mutex_lock(&card->discipline_mutex);
1278 mutex_lock(&card->conf_mutex);
1279 QETH_DBF_TEXT(SETUP, 3, "setoffl");
1280 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
1282 if (card->dev && netif_carrier_ok(card->dev))
1283 netif_carrier_off(card->dev);
1284 recover_flag = card->state;
1285 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
1286 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1287 card->info.hwtrap = 1;
1289 qeth_l2_stop_card(card, recovery_mode);
1290 rc = ccw_device_set_offline(CARD_DDEV(card));
1291 rc2 = ccw_device_set_offline(CARD_WDEV(card));
1292 rc3 = ccw_device_set_offline(CARD_RDEV(card));
1294 rc = (rc2) ? rc2 : rc3;
1296 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
1297 qdio_free(CARD_DDEV(card));
1298 if (recover_flag == CARD_STATE_UP)
1299 card->state = CARD_STATE_RECOVER;
1300 /* let user_space know that device is offline */
1301 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
1302 mutex_unlock(&card->conf_mutex);
1303 mutex_unlock(&card->discipline_mutex);
1307 static int qeth_l2_set_offline(struct ccwgroup_device *cgdev)
1309 return __qeth_l2_set_offline(cgdev, 0);
1312 static int qeth_l2_recover(void *ptr)
1314 struct qeth_card *card;
1317 card = (struct qeth_card *) ptr;
1318 QETH_CARD_TEXT(card, 2, "recover1");
1319 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
1321 QETH_CARD_TEXT(card, 2, "recover2");
1322 dev_warn(&card->gdev->dev,
1323 "A recovery process has been started for the device\n");
1324 qeth_set_recovery_task(card);
1325 __qeth_l2_set_offline(card->gdev, 1);
1326 rc = __qeth_l2_set_online(card->gdev, 1);
1328 dev_info(&card->gdev->dev,
1329 "Device successfully recovered!\n");
1331 qeth_close_dev(card);
1332 dev_warn(&card->gdev->dev, "The qeth device driver "
1333 "failed to recover an error on the device\n");
1335 qeth_clear_recovery_task(card);
1336 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1337 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
1341 static int __init qeth_l2_init(void)
1343 pr_info("register layer 2 discipline\n");
1347 static void __exit qeth_l2_exit(void)
1349 pr_info("unregister layer 2 discipline\n");
1352 static void qeth_l2_shutdown(struct ccwgroup_device *gdev)
1354 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1355 qeth_set_allowed_threads(card, 0, 1);
1356 if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)
1357 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1358 qeth_qdio_clear_card(card, 0);
1359 qeth_clear_qdio_buffers(card);
1360 qdio_free(CARD_DDEV(card));
1363 static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev)
1365 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1368 netif_device_detach(card->dev);
1369 qeth_set_allowed_threads(card, 0, 1);
1370 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
1371 if (gdev->state == CCWGROUP_OFFLINE)
1373 if (card->state == CARD_STATE_UP) {
1374 if (card->info.hwtrap)
1375 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1376 __qeth_l2_set_offline(card->gdev, 1);
1378 __qeth_l2_set_offline(card->gdev, 0);
1382 static int qeth_l2_pm_resume(struct ccwgroup_device *gdev)
1384 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1387 if (gdev->state == CCWGROUP_OFFLINE)
1390 if (card->state == CARD_STATE_RECOVER) {
1391 rc = __qeth_l2_set_online(card->gdev, 1);
1394 dev_close(card->dev);
1398 rc = __qeth_l2_set_online(card->gdev, 0);
1400 qeth_set_allowed_threads(card, 0xffffffff, 0);
1402 netif_device_attach(card->dev);
1404 dev_warn(&card->gdev->dev, "The qeth device driver "
1405 "failed to recover an error on the device\n");
1409 /* Returns zero if the command is successfully "consumed" */
1410 static int qeth_l2_control_event(struct qeth_card *card,
1411 struct qeth_ipa_cmd *cmd)
1413 switch (cmd->hdr.command) {
1414 case IPA_CMD_SETBRIDGEPORT_OSA:
1415 case IPA_CMD_SETBRIDGEPORT_IQD:
1416 if (cmd->data.sbp.hdr.command_code ==
1417 IPA_SBP_BRIDGE_PORT_STATE_CHANGE) {
1418 qeth_bridge_state_change(card, cmd);
1422 case IPA_CMD_ADDRESS_CHANGE_NOTIF:
1423 qeth_bridge_host_event(card, cmd);
1430 struct qeth_discipline qeth_l2_discipline = {
1431 .start_poll = qeth_qdio_start_poll,
1432 .input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
1433 .output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
1434 .recover = qeth_l2_recover,
1435 .setup = qeth_l2_probe_device,
1436 .remove = qeth_l2_remove_device,
1437 .set_online = qeth_l2_set_online,
1438 .set_offline = qeth_l2_set_offline,
1439 .shutdown = qeth_l2_shutdown,
1440 .freeze = qeth_l2_pm_suspend,
1441 .thaw = qeth_l2_pm_resume,
1442 .restore = qeth_l2_pm_resume,
1443 .control_event_handler = qeth_l2_control_event,
1445 EXPORT_SYMBOL_GPL(qeth_l2_discipline);
1447 static int qeth_osn_send_control_data(struct qeth_card *card, int len,
1448 struct qeth_cmd_buffer *iob)
1450 unsigned long flags;
1453 QETH_CARD_TEXT(card, 5, "osndctrd");
1455 wait_event(card->wait_q,
1456 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1457 qeth_prepare_control_data(card, len, iob);
1458 QETH_CARD_TEXT(card, 6, "osnoirqp");
1459 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1460 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1461 (addr_t) iob, 0, 0);
1462 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1464 QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: "
1465 "ccw_device_start rc = %i\n", rc);
1466 QETH_CARD_TEXT_(card, 2, " err%d", rc);
1467 qeth_release_buffer(iob->channel, iob);
1468 atomic_set(&card->write.irq_pending, 0);
1469 wake_up(&card->wait_q);
1474 static int qeth_osn_send_ipa_cmd(struct qeth_card *card,
1475 struct qeth_cmd_buffer *iob, int data_len)
1479 QETH_CARD_TEXT(card, 4, "osndipa");
1481 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1482 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1484 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1485 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1486 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1487 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1488 return qeth_osn_send_control_data(card, s1, iob);
1491 int qeth_osn_assist(struct net_device *dev, void *data, int data_len)
1493 struct qeth_cmd_buffer *iob;
1494 struct qeth_card *card;
1499 card = dev->ml_priv;
1502 QETH_CARD_TEXT(card, 2, "osnsdmc");
1503 if (!qeth_card_hw_is_reachable(card))
1505 iob = qeth_wait_for_buffer(&card->write);
1506 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
1507 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
1510 EXPORT_SYMBOL(qeth_osn_assist);
1512 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev,
1513 int (*assist_cb)(struct net_device *, void *),
1514 int (*data_cb)(struct sk_buff *))
1516 struct qeth_card *card;
1518 *dev = qeth_l2_netdev_by_devno(read_dev_no);
1521 card = (*dev)->ml_priv;
1524 QETH_CARD_TEXT(card, 2, "osnreg");
1525 if ((assist_cb == NULL) || (data_cb == NULL))
1527 card->osn_info.assist_cb = assist_cb;
1528 card->osn_info.data_cb = data_cb;
1531 EXPORT_SYMBOL(qeth_osn_register);
1533 void qeth_osn_deregister(struct net_device *dev)
1535 struct qeth_card *card;
1539 card = dev->ml_priv;
1542 QETH_CARD_TEXT(card, 2, "osndereg");
1543 card->osn_info.assist_cb = NULL;
1544 card->osn_info.data_cb = NULL;
1547 EXPORT_SYMBOL(qeth_osn_deregister);
1549 /* SETBRIDGEPORT support, async notifications */
1551 enum qeth_an_event_type {anev_reg_unreg, anev_abort, anev_reset};
1554 * qeth_bridge_emit_host_event() - bridgeport address change notification
1555 * @card: qeth_card structure pointer, for udev events.
1556 * @evtype: "normal" register/unregister, or abort, or reset. For abort
1557 * and reset token and addr_lnid are unused and may be NULL.
1558 * @code: event bitmask: high order bit 0x80 value 1 means removal of an
1559 * object, 0 - addition of an object.
1560 * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC.
1561 * @token: "network token" structure identifying physical address of the port.
1562 * @addr_lnid: pointer to structure with MAC address and VLAN ID.
1564 * This function is called when registrations and deregistrations are
1565 * reported by the hardware, and also when notifications are enabled -
1566 * for all currently registered addresses.
1568 static void qeth_bridge_emit_host_event(struct qeth_card *card,
1569 enum qeth_an_event_type evtype,
1570 u8 code, struct net_if_token *token, struct mac_addr_lnid *addr_lnid)
1577 case anev_reg_unreg:
1578 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=%s",
1579 (code & IPA_ADDR_CHANGE_CODE_REMOVAL)
1580 ? "deregister" : "register");
1581 env[i] = str[i]; i++;
1582 if (code & IPA_ADDR_CHANGE_CODE_VLANID) {
1583 snprintf(str[i], sizeof(str[i]), "VLAN=%d",
1585 env[i] = str[i]; i++;
1587 if (code & IPA_ADDR_CHANGE_CODE_MACADDR) {
1588 snprintf(str[i], sizeof(str[i]), "MAC=%pM",
1590 env[i] = str[i]; i++;
1592 snprintf(str[i], sizeof(str[i]), "NTOK_BUSID=%x.%x.%04x",
1593 token->cssid, token->ssid, token->devnum);
1594 env[i] = str[i]; i++;
1595 snprintf(str[i], sizeof(str[i]), "NTOK_IID=%02x", token->iid);
1596 env[i] = str[i]; i++;
1597 snprintf(str[i], sizeof(str[i]), "NTOK_CHPID=%02x",
1599 env[i] = str[i]; i++;
1600 snprintf(str[i], sizeof(str[i]), "NTOK_CHID=%04x", token->chid);
1601 env[i] = str[i]; i++;
1604 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=abort");
1605 env[i] = str[i]; i++;
1608 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=reset");
1609 env[i] = str[i]; i++;
1613 kobject_uevent_env(&card->gdev->dev.kobj, KOBJ_CHANGE, env);
1616 struct qeth_bridge_state_data {
1617 struct work_struct worker;
1618 struct qeth_card *card;
1619 struct qeth_sbp_state_change qports;
1622 static void qeth_bridge_state_change_worker(struct work_struct *work)
1624 struct qeth_bridge_state_data *data =
1625 container_of(work, struct qeth_bridge_state_data, worker);
1626 /* We are only interested in the first entry - local port */
1627 struct qeth_sbp_port_entry *entry = &data->qports.entry[0];
1628 char env_locrem[32];
1638 /* Role should not change by itself, but if it did, */
1639 /* information from the hardware is authoritative. */
1640 mutex_lock(&data->card->conf_mutex);
1641 data->card->options.sbp.role = entry->role;
1642 mutex_unlock(&data->card->conf_mutex);
1644 snprintf(env_locrem, sizeof(env_locrem), "BRIDGEPORT=statechange");
1645 snprintf(env_role, sizeof(env_role), "ROLE=%s",
1646 (entry->role == QETH_SBP_ROLE_NONE) ? "none" :
1647 (entry->role == QETH_SBP_ROLE_PRIMARY) ? "primary" :
1648 (entry->role == QETH_SBP_ROLE_SECONDARY) ? "secondary" :
1650 snprintf(env_state, sizeof(env_state), "STATE=%s",
1651 (entry->state == QETH_SBP_STATE_INACTIVE) ? "inactive" :
1652 (entry->state == QETH_SBP_STATE_STANDBY) ? "standby" :
1653 (entry->state == QETH_SBP_STATE_ACTIVE) ? "active" :
1655 kobject_uevent_env(&data->card->gdev->dev.kobj,
1660 static void qeth_bridge_state_change(struct qeth_card *card,
1661 struct qeth_ipa_cmd *cmd)
1663 struct qeth_sbp_state_change *qports =
1664 &cmd->data.sbp.data.state_change;
1665 struct qeth_bridge_state_data *data;
1668 QETH_CARD_TEXT(card, 2, "brstchng");
1669 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
1670 QETH_CARD_TEXT_(card, 2, "BPsz%04x", qports->entry_length);
1673 extrasize = sizeof(struct qeth_sbp_port_entry) * qports->num_entries;
1674 data = kzalloc(sizeof(struct qeth_bridge_state_data) + extrasize,
1677 QETH_CARD_TEXT(card, 2, "BPSalloc");
1680 INIT_WORK(&data->worker, qeth_bridge_state_change_worker);
1682 memcpy(&data->qports, qports,
1683 sizeof(struct qeth_sbp_state_change) + extrasize);
1684 queue_work(qeth_wq, &data->worker);
1687 struct qeth_bridge_host_data {
1688 struct work_struct worker;
1689 struct qeth_card *card;
1690 struct qeth_ipacmd_addr_change hostevs;
1693 static void qeth_bridge_host_event_worker(struct work_struct *work)
1695 struct qeth_bridge_host_data *data =
1696 container_of(work, struct qeth_bridge_host_data, worker);
1699 if (data->hostevs.lost_event_mask) {
1700 dev_info(&data->card->gdev->dev,
1701 "Address notification from the Bridge Port stopped %s (%s)\n",
1702 data->card->dev->name,
1703 (data->hostevs.lost_event_mask == 0x01)
1705 : (data->hostevs.lost_event_mask == 0x02)
1706 ? "Bridge port state change"
1707 : "Unknown reason");
1708 mutex_lock(&data->card->conf_mutex);
1709 data->card->options.sbp.hostnotification = 0;
1710 mutex_unlock(&data->card->conf_mutex);
1711 qeth_bridge_emit_host_event(data->card, anev_abort,
1714 for (i = 0; i < data->hostevs.num_entries; i++) {
1715 struct qeth_ipacmd_addr_change_entry *entry =
1716 &data->hostevs.entry[i];
1717 qeth_bridge_emit_host_event(data->card,
1720 &entry->token, &entry->addr_lnid);
1725 static void qeth_bridge_host_event(struct qeth_card *card,
1726 struct qeth_ipa_cmd *cmd)
1728 struct qeth_ipacmd_addr_change *hostevs =
1729 &cmd->data.addrchange;
1730 struct qeth_bridge_host_data *data;
1733 QETH_CARD_TEXT(card, 2, "brhostev");
1734 if (cmd->hdr.return_code != 0x0000) {
1735 if (cmd->hdr.return_code == 0x0010) {
1736 if (hostevs->lost_event_mask == 0x00)
1737 hostevs->lost_event_mask = 0xff;
1739 QETH_CARD_TEXT_(card, 2, "BPHe%04x",
1740 cmd->hdr.return_code);
1744 extrasize = sizeof(struct qeth_ipacmd_addr_change_entry) *
1745 hostevs->num_entries;
1746 data = kzalloc(sizeof(struct qeth_bridge_host_data) + extrasize,
1749 QETH_CARD_TEXT(card, 2, "BPHalloc");
1752 INIT_WORK(&data->worker, qeth_bridge_host_event_worker);
1754 memcpy(&data->hostevs, hostevs,
1755 sizeof(struct qeth_ipacmd_addr_change) + extrasize);
1756 queue_work(qeth_wq, &data->worker);
1759 /* SETBRIDGEPORT support; sending commands */
1761 struct _qeth_sbp_cbctl {
1767 enum qeth_sbp_roles *role;
1768 enum qeth_sbp_states *state;
1774 * qeth_bridgeport_makerc() - derive "traditional" error from hardware codes.
1775 * @card: qeth_card structure pointer, for debug messages.
1776 * @cbctl: state structure with hardware return codes.
1777 * @setcmd: IPA command code
1779 * Returns negative errno-compatible error indication or 0 on success.
1781 static int qeth_bridgeport_makerc(struct qeth_card *card,
1782 struct _qeth_sbp_cbctl *cbctl, enum qeth_ipa_sbp_cmd setcmd)
1785 int is_iqd = (card->info.type == QETH_CARD_TYPE_IQD);
1787 if ((is_iqd && (cbctl->ipa_rc == IPA_RC_SUCCESS)) ||
1788 (!is_iqd && (cbctl->ipa_rc == cbctl->cmd_rc)))
1789 switch (cbctl->cmd_rc) {
1798 case 0x000C: /* Not configured as bridge Port */
1799 rc = -ENODEV; /* maybe not the best code here? */
1800 dev_err(&card->gdev->dev,
1801 "The device is not configured as a Bridge Port\n");
1804 case 0x0010: /* OS mismatch */
1806 dev_err(&card->gdev->dev,
1807 "A Bridge Port is already configured by a different operating system\n");
1810 case 0x0014: /* Another device is Primary */
1812 case IPA_SBP_SET_PRIMARY_BRIDGE_PORT:
1814 dev_err(&card->gdev->dev,
1815 "The LAN already has a primary Bridge Port\n");
1817 case IPA_SBP_SET_SECONDARY_BRIDGE_PORT:
1819 dev_err(&card->gdev->dev,
1820 "The device is already a primary Bridge Port\n");
1827 case 0x0018: /* This device is currently Secondary */
1829 dev_err(&card->gdev->dev,
1830 "The device is already a secondary Bridge Port\n");
1833 case 0x001C: /* Limit for Secondary devices reached */
1835 dev_err(&card->gdev->dev,
1836 "The LAN cannot have more secondary Bridge Ports\n");
1839 case 0x0024: /* This device is currently Primary */
1841 dev_err(&card->gdev->dev,
1842 "The device is already a primary Bridge Port\n");
1845 case 0x0020: /* Not authorized by zManager */
1847 dev_err(&card->gdev->dev,
1848 "The device is not authorized to be a Bridge Port\n");
1854 switch (cbctl->ipa_rc) {
1855 case IPA_RC_NOTSUPP:
1858 case IPA_RC_UNSUPPORTED_COMMAND:
1866 QETH_CARD_TEXT_(card, 2, "SBPi%04x", cbctl->ipa_rc);
1867 QETH_CARD_TEXT_(card, 2, "SBPc%04x", cbctl->cmd_rc);
1872 static inline int ipa_cmd_sbp(struct qeth_card *card)
1874 return (card->info.type == QETH_CARD_TYPE_IQD) ?
1875 IPA_CMD_SETBRIDGEPORT_IQD :
1876 IPA_CMD_SETBRIDGEPORT_OSA;
1879 static int qeth_bridgeport_query_support_cb(struct qeth_card *card,
1880 struct qeth_reply *reply, unsigned long data)
1882 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1883 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1884 QETH_CARD_TEXT(card, 2, "brqsupcb");
1885 cbctl->ipa_rc = cmd->hdr.return_code;
1886 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1887 if ((cbctl->ipa_rc == 0) && (cbctl->cmd_rc == 0)) {
1888 cbctl->data.supported =
1889 cmd->data.sbp.data.query_cmds_supp.supported_cmds;
1891 cbctl->data.supported = 0;
1897 * qeth_bridgeport_query_support() - store bitmask of supported subfunctions.
1898 * @card: qeth_card structure pointer.
1900 * Sets bitmask of supported setbridgeport subfunctions in the qeth_card
1901 * strucutre: card->options.sbp.supported_funcs.
1903 static void qeth_bridgeport_query_support(struct qeth_card *card)
1905 struct qeth_cmd_buffer *iob;
1906 struct qeth_ipa_cmd *cmd;
1907 struct _qeth_sbp_cbctl cbctl;
1909 QETH_CARD_TEXT(card, 2, "brqsuppo");
1910 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
1913 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1914 cmd->data.sbp.hdr.cmdlength =
1915 sizeof(struct qeth_ipacmd_sbp_hdr) +
1916 sizeof(struct qeth_sbp_query_cmds_supp);
1917 cmd->data.sbp.hdr.command_code =
1918 IPA_SBP_QUERY_COMMANDS_SUPPORTED;
1919 cmd->data.sbp.hdr.used_total = 1;
1920 cmd->data.sbp.hdr.seq_no = 1;
1921 if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb,
1923 qeth_bridgeport_makerc(card, &cbctl,
1924 IPA_SBP_QUERY_COMMANDS_SUPPORTED)) {
1925 /* non-zero makerc signifies failure, and produce messages */
1926 card->options.sbp.role = QETH_SBP_ROLE_NONE;
1929 card->options.sbp.supported_funcs = cbctl.data.supported;
1932 static int qeth_bridgeport_query_ports_cb(struct qeth_card *card,
1933 struct qeth_reply *reply, unsigned long data)
1935 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1936 struct qeth_sbp_query_ports *qports = &cmd->data.sbp.data.query_ports;
1937 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1939 QETH_CARD_TEXT(card, 2, "brqprtcb");
1940 cbctl->ipa_rc = cmd->hdr.return_code;
1941 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1942 if ((cbctl->ipa_rc != 0) || (cbctl->cmd_rc != 0))
1944 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
1945 cbctl->cmd_rc = 0xffff;
1946 QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length);
1949 /* first entry contains the state of the local port */
1950 if (qports->num_entries > 0) {
1951 if (cbctl->data.qports.role)
1952 *cbctl->data.qports.role = qports->entry[0].role;
1953 if (cbctl->data.qports.state)
1954 *cbctl->data.qports.state = qports->entry[0].state;
1960 * qeth_bridgeport_query_ports() - query local bridgeport status.
1961 * @card: qeth_card structure pointer.
1962 * @role: Role of the port: 0-none, 1-primary, 2-secondary.
1963 * @state: State of the port: 0-inactive, 1-standby, 2-active.
1965 * Returns negative errno-compatible error indication or 0 on success.
1967 * 'role' and 'state' are not updated in case of hardware operation failure.
1969 int qeth_bridgeport_query_ports(struct qeth_card *card,
1970 enum qeth_sbp_roles *role, enum qeth_sbp_states *state)
1973 struct qeth_cmd_buffer *iob;
1974 struct qeth_ipa_cmd *cmd;
1975 struct _qeth_sbp_cbctl cbctl = {
1984 QETH_CARD_TEXT(card, 2, "brqports");
1985 if (!(card->options.sbp.supported_funcs & IPA_SBP_QUERY_BRIDGE_PORTS))
1987 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
1990 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1991 cmd->data.sbp.hdr.cmdlength =
1992 sizeof(struct qeth_ipacmd_sbp_hdr);
1993 cmd->data.sbp.hdr.command_code =
1994 IPA_SBP_QUERY_BRIDGE_PORTS;
1995 cmd->data.sbp.hdr.used_total = 1;
1996 cmd->data.sbp.hdr.seq_no = 1;
1997 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb,
2001 return qeth_bridgeport_makerc(card, &cbctl, IPA_SBP_QUERY_BRIDGE_PORTS);
2003 EXPORT_SYMBOL_GPL(qeth_bridgeport_query_ports);
2005 static int qeth_bridgeport_set_cb(struct qeth_card *card,
2006 struct qeth_reply *reply, unsigned long data)
2008 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data;
2009 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
2010 QETH_CARD_TEXT(card, 2, "brsetrcb");
2011 cbctl->ipa_rc = cmd->hdr.return_code;
2012 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
2017 * qeth_bridgeport_setrole() - Assign primary role to the port.
2018 * @card: qeth_card structure pointer.
2019 * @role: Role to assign.
2021 * Returns negative errno-compatible error indication or 0 on success.
2023 int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role)
2027 struct qeth_cmd_buffer *iob;
2028 struct qeth_ipa_cmd *cmd;
2029 struct _qeth_sbp_cbctl cbctl;
2030 enum qeth_ipa_sbp_cmd setcmd;
2032 QETH_CARD_TEXT(card, 2, "brsetrol");
2034 case QETH_SBP_ROLE_NONE:
2035 setcmd = IPA_SBP_RESET_BRIDGE_PORT_ROLE;
2036 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
2037 sizeof(struct qeth_sbp_reset_role);
2039 case QETH_SBP_ROLE_PRIMARY:
2040 setcmd = IPA_SBP_SET_PRIMARY_BRIDGE_PORT;
2041 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
2042 sizeof(struct qeth_sbp_set_primary);
2044 case QETH_SBP_ROLE_SECONDARY:
2045 setcmd = IPA_SBP_SET_SECONDARY_BRIDGE_PORT;
2046 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
2047 sizeof(struct qeth_sbp_set_secondary);
2052 if (!(card->options.sbp.supported_funcs & setcmd))
2054 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
2057 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2058 cmd->data.sbp.hdr.cmdlength = cmdlength;
2059 cmd->data.sbp.hdr.command_code = setcmd;
2060 cmd->data.sbp.hdr.used_total = 1;
2061 cmd->data.sbp.hdr.seq_no = 1;
2062 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb,
2066 return qeth_bridgeport_makerc(card, &cbctl, setcmd);
2070 * qeth_anset_makerc() - derive "traditional" error from hardware codes.
2071 * @card: qeth_card structure pointer, for debug messages.
2073 * Returns negative errno-compatible error indication or 0 on success.
2075 static int qeth_anset_makerc(struct qeth_card *card, int pnso_rc, u16 response)
2088 dev_err(&card->gdev->dev,
2089 "Setting address notification failed\n");
2101 QETH_CARD_TEXT_(card, 2, "SBPp%04x", pnso_rc);
2102 QETH_CARD_TEXT_(card, 2, "SBPr%04x", response);
2107 static void qeth_bridgeport_an_set_cb(void *priv,
2108 enum qdio_brinfo_entry_type type, void *entry)
2110 struct qeth_card *card = (struct qeth_card *)priv;
2111 struct qdio_brinfo_entry_l2 *l2entry;
2114 if (type != l2_addr_lnid) {
2119 l2entry = (struct qdio_brinfo_entry_l2 *)entry;
2120 code = IPA_ADDR_CHANGE_CODE_MACADDR;
2121 if (l2entry->addr_lnid.lnid)
2122 code |= IPA_ADDR_CHANGE_CODE_VLANID;
2123 qeth_bridge_emit_host_event(card, anev_reg_unreg, code,
2124 (struct net_if_token *)&l2entry->nit,
2125 (struct mac_addr_lnid *)&l2entry->addr_lnid);
2129 * qeth_bridgeport_an_set() - Enable or disable bridgeport address notification
2130 * @card: qeth_card structure pointer.
2131 * @enable: 0 - disable, non-zero - enable notifications
2133 * Returns negative errno-compatible error indication or 0 on success.
2135 * On enable, emits a series of address notifications udev events for all
2136 * currently registered hosts.
2138 int qeth_bridgeport_an_set(struct qeth_card *card, int enable)
2142 struct ccw_device *ddev;
2143 struct subchannel_id schid;
2147 if (!card->options.sbp.supported_funcs)
2149 ddev = CARD_DDEV(card);
2150 ccw_device_get_schid(ddev, &schid);
2153 qeth_bridge_emit_host_event(card, anev_reset, 0, NULL, NULL);
2154 rc = qdio_pnso_brinfo(schid, 1, &response,
2155 qeth_bridgeport_an_set_cb, card);
2157 rc = qdio_pnso_brinfo(schid, 0, &response, NULL, NULL);
2158 return qeth_anset_makerc(card, rc, response);
2160 EXPORT_SYMBOL_GPL(qeth_bridgeport_an_set);
2162 module_init(qeth_l2_init);
2163 module_exit(qeth_l2_exit);
2164 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
2165 MODULE_DESCRIPTION("qeth layer 2 discipline");
2166 MODULE_LICENSE("GPL");