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>
23 #include "qeth_core.h"
26 static int qeth_l2_set_offline(struct ccwgroup_device *);
27 static int qeth_l2_stop(struct net_device *);
28 static int qeth_l2_send_delmac(struct qeth_card *, __u8 *);
29 static int qeth_l2_send_setdelmac(struct qeth_card *, __u8 *,
31 static void qeth_l2_set_multicast_list(struct net_device *);
32 static int qeth_l2_recover(void *);
33 static void qeth_bridgeport_query_support(struct qeth_card *card);
34 static void qeth_bridge_state_change(struct qeth_card *card,
35 struct qeth_ipa_cmd *cmd);
36 static void qeth_bridge_host_event(struct qeth_card *card,
37 struct qeth_ipa_cmd *cmd);
39 static int qeth_l2_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
41 struct qeth_card *card = dev->ml_priv;
42 struct mii_ioctl_data *mii_data;
48 if ((card->state != CARD_STATE_UP) &&
49 (card->state != CARD_STATE_SOFTSETUP))
52 if (card->info.type == QETH_CARD_TYPE_OSN)
56 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
57 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
59 case SIOC_QETH_GET_CARD_TYPE:
60 if ((card->info.type == QETH_CARD_TYPE_OSD ||
61 card->info.type == QETH_CARD_TYPE_OSM ||
62 card->info.type == QETH_CARD_TYPE_OSX) &&
68 mii_data = if_mii(rq);
72 mii_data = if_mii(rq);
73 if (mii_data->phy_id != 0)
76 mii_data->val_out = qeth_mdio_read(dev,
77 mii_data->phy_id, mii_data->reg_num);
79 case SIOC_QETH_QUERY_OAT:
80 rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data);
86 QETH_CARD_TEXT_(card, 2, "ioce%d", rc);
90 static int qeth_l2_verify_dev(struct net_device *dev)
92 struct qeth_card *card;
96 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
97 list_for_each_entry(card, &qeth_core_card_list.list, list) {
98 if (card->dev == dev) {
103 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
108 static struct net_device *qeth_l2_netdev_by_devno(unsigned char *read_dev_no)
110 struct qeth_card *card;
111 struct net_device *ndev;
114 struct ccw_dev_id read_devid;
117 memcpy(&temp_dev_no, read_dev_no, 2);
118 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
119 list_for_each_entry(card, &qeth_core_card_list.list, list) {
120 ccw_device_get_id(CARD_RDEV(card), &read_devid);
121 if (read_devid.devno == temp_dev_no) {
126 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
130 static int qeth_setdel_makerc(struct qeth_card *card, int retcode)
135 QETH_CARD_TEXT_(card, 2, "err%04x", retcode);
140 case IPA_RC_L2_UNSUPPORTED_CMD:
143 case IPA_RC_L2_ADDR_TABLE_FULL:
146 case IPA_RC_L2_DUP_MAC:
147 case IPA_RC_L2_DUP_LAYER3_MAC:
150 case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP:
151 case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP:
154 case IPA_RC_L2_MAC_NOT_FOUND:
167 static int qeth_l2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
171 QETH_CARD_TEXT(card, 2, "L2Sgmac");
172 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
175 QETH_DBF_MESSAGE(2, "Group MAC %pM already existing on %s\n",
176 mac, QETH_CARD_IFNAME(card));
178 QETH_DBF_MESSAGE(2, "Could not set group MAC %pM on %s: %d\n",
179 mac, QETH_CARD_IFNAME(card), rc);
183 static int qeth_l2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
187 QETH_CARD_TEXT(card, 2, "L2Dgmac");
188 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
192 "Could not delete group MAC %pM on %s: %d\n",
193 mac, QETH_CARD_IFNAME(card), rc);
197 static void qeth_l2_add_mc(struct qeth_card *card, __u8 *mac, int vmac)
199 struct qeth_mc_mac *mc;
202 mc = kmalloc(sizeof(struct qeth_mc_mac), GFP_ATOMIC);
207 memcpy(mc->mc_addr, mac, OSA_ADDR_LEN);
208 mc->mc_addrlen = OSA_ADDR_LEN;
212 rc = qeth_setdel_makerc(card,
213 qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC));
215 rc = qeth_setdel_makerc(card,
216 qeth_l2_send_setgroupmac(card, mac));
220 list_add_tail(&mc->list, &card->mc_list);
225 static void qeth_l2_del_all_mc(struct qeth_card *card, int del)
227 struct qeth_mc_mac *mc, *tmp;
229 spin_lock_bh(&card->mclock);
230 list_for_each_entry_safe(mc, tmp, &card->mc_list, list) {
233 qeth_l2_send_setdelmac(card, mc->mc_addr,
236 qeth_l2_send_delgroupmac(card, mc->mc_addr);
241 spin_unlock_bh(&card->mclock);
244 static inline int qeth_l2_get_cast_type(struct qeth_card *card,
247 if (card->info.type == QETH_CARD_TYPE_OSN)
249 if (is_broadcast_ether_addr(skb->data))
250 return RTN_BROADCAST;
251 if (is_multicast_ether_addr(skb->data))
252 return RTN_MULTICAST;
256 static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
257 struct sk_buff *skb, int cast_type)
259 struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb);
261 memset(hdr, 0, sizeof(struct qeth_hdr));
262 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
264 /* set byte byte 3 to casting flags */
265 if (cast_type == RTN_MULTICAST)
266 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST;
267 else if (cast_type == RTN_BROADCAST)
268 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST;
270 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST;
272 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
273 /* VSWITCH relies on the VLAN
274 * information to be present in
276 if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) {
277 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN;
278 hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI);
282 static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card,
283 struct qeth_reply *reply, unsigned long data)
285 struct qeth_ipa_cmd *cmd;
287 QETH_CARD_TEXT(card, 2, "L2sdvcb");
288 cmd = (struct qeth_ipa_cmd *) data;
289 if (cmd->hdr.return_code) {
290 QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. "
291 "Continuing\n", cmd->data.setdelvlan.vlan_id,
292 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
293 QETH_CARD_TEXT_(card, 2, "L2VL%4x", cmd->hdr.command);
294 QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code);
299 static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i,
300 enum qeth_ipa_cmds ipacmd)
302 struct qeth_ipa_cmd *cmd;
303 struct qeth_cmd_buffer *iob;
305 QETH_CARD_TEXT_(card, 4, "L2sdv%x", ipacmd);
306 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
309 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
310 cmd->data.setdelvlan.vlan_id = i;
311 return qeth_send_ipa_cmd(card, iob,
312 qeth_l2_send_setdelvlan_cb, NULL);
315 static void qeth_l2_process_vlans(struct qeth_card *card)
317 struct qeth_vlan_vid *id;
318 QETH_CARD_TEXT(card, 3, "L2prcvln");
319 spin_lock_bh(&card->vlanlock);
320 list_for_each_entry(id, &card->vid_list, list) {
321 qeth_l2_send_setdelvlan(card, id->vid, IPA_CMD_SETVLAN);
323 spin_unlock_bh(&card->vlanlock);
326 static int qeth_l2_vlan_rx_add_vid(struct net_device *dev,
327 __be16 proto, u16 vid)
329 struct qeth_card *card = dev->ml_priv;
330 struct qeth_vlan_vid *id;
333 QETH_CARD_TEXT_(card, 4, "aid:%d", vid);
336 if (card->info.type == QETH_CARD_TYPE_OSM) {
337 QETH_CARD_TEXT(card, 3, "aidOSM");
340 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
341 QETH_CARD_TEXT(card, 3, "aidREC");
344 id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC);
347 rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
352 spin_lock_bh(&card->vlanlock);
353 list_add_tail(&id->list, &card->vid_list);
354 spin_unlock_bh(&card->vlanlock);
361 static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev,
362 __be16 proto, u16 vid)
364 struct qeth_vlan_vid *id, *tmpid = NULL;
365 struct qeth_card *card = dev->ml_priv;
368 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
369 if (card->info.type == QETH_CARD_TYPE_OSM) {
370 QETH_CARD_TEXT(card, 3, "kidOSM");
373 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
374 QETH_CARD_TEXT(card, 3, "kidREC");
377 spin_lock_bh(&card->vlanlock);
378 list_for_each_entry(id, &card->vid_list, list) {
379 if (id->vid == vid) {
385 spin_unlock_bh(&card->vlanlock);
387 rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
390 qeth_l2_set_multicast_list(card->dev);
394 static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode)
398 QETH_DBF_TEXT(SETUP , 2, "stopcard");
399 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
401 qeth_set_allowed_threads(card, 0, 1);
402 if (card->read.state == CH_STATE_UP &&
403 card->write.state == CH_STATE_UP &&
404 (card->state == CARD_STATE_UP)) {
406 card->info.type != QETH_CARD_TYPE_OSN) {
407 qeth_l2_stop(card->dev);
410 dev_close(card->dev);
413 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
414 card->state = CARD_STATE_SOFTSETUP;
416 if (card->state == CARD_STATE_SOFTSETUP) {
417 qeth_l2_del_all_mc(card, 0);
418 qeth_clear_ipacmd_list(card);
419 card->state = CARD_STATE_HARDSETUP;
421 if (card->state == CARD_STATE_HARDSETUP) {
422 qeth_qdio_clear_card(card, 0);
423 qeth_clear_qdio_buffers(card);
424 qeth_clear_working_pool_list(card);
425 card->state = CARD_STATE_DOWN;
427 if (card->state == CARD_STATE_DOWN) {
428 qeth_clear_cmd_buffers(&card->read);
429 qeth_clear_cmd_buffers(&card->write);
434 static int qeth_l2_process_inbound_buffer(struct qeth_card *card,
435 int budget, int *done)
439 struct qeth_hdr *hdr;
443 WARN_ON_ONCE(!budget);
445 skb = qeth_core_get_next_skb(card,
446 &card->qdio.in_q->bufs[card->rx.b_index],
447 &card->rx.b_element, &card->rx.e_offset, &hdr);
452 skb->dev = card->dev;
453 switch (hdr->hdr.l2.id) {
454 case QETH_HEADER_TYPE_LAYER2:
455 skb->pkt_type = PACKET_HOST;
456 skb->protocol = eth_type_trans(skb, skb->dev);
457 skb->ip_summed = CHECKSUM_NONE;
458 if (skb->protocol == htons(ETH_P_802_2))
459 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
461 netif_receive_skb(skb);
463 case QETH_HEADER_TYPE_OSN:
464 if (card->info.type == QETH_CARD_TYPE_OSN) {
465 skb_push(skb, sizeof(struct qeth_hdr));
466 skb_copy_to_linear_data(skb, hdr,
467 sizeof(struct qeth_hdr));
469 card->osn_info.data_cb(skb);
474 dev_kfree_skb_any(skb);
475 QETH_CARD_TEXT(card, 3, "inbunkno");
476 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
481 card->stats.rx_packets++;
482 card->stats.rx_bytes += len;
487 static int qeth_l2_poll(struct napi_struct *napi, int budget)
489 struct qeth_card *card = container_of(napi, struct qeth_card, napi);
491 struct qeth_qdio_buffer *buffer;
493 int new_budget = budget;
495 if (card->options.performance_stats) {
496 card->perf_stats.inbound_cnt++;
497 card->perf_stats.inbound_start_time = qeth_get_micros();
501 if (!card->rx.b_count) {
502 card->rx.qdio_err = 0;
503 card->rx.b_count = qdio_get_next_buffers(
504 card->data.ccwdev, 0, &card->rx.b_index,
506 if (card->rx.b_count <= 0) {
507 card->rx.b_count = 0;
511 &card->qdio.in_q->bufs[card->rx.b_index]
513 card->rx.e_offset = 0;
516 while (card->rx.b_count) {
517 buffer = &card->qdio.in_q->bufs[card->rx.b_index];
518 if (!(card->rx.qdio_err &&
519 qeth_check_qdio_errors(card, buffer->buffer,
520 card->rx.qdio_err, "qinerr")))
521 work_done += qeth_l2_process_inbound_buffer(
522 card, new_budget, &done);
527 if (card->options.performance_stats)
528 card->perf_stats.bufs_rec++;
529 qeth_put_buffer_pool_entry(card,
531 qeth_queue_input_buffer(card, card->rx.b_index);
533 if (card->rx.b_count) {
535 (card->rx.b_index + 1) %
536 QDIO_MAX_BUFFERS_PER_Q;
539 ->bufs[card->rx.b_index]
541 card->rx.e_offset = 0;
545 if (work_done >= budget)
548 new_budget = budget - work_done;
553 if (qdio_start_irq(card->data.ccwdev, 0))
554 napi_schedule(&card->napi);
556 if (card->options.performance_stats)
557 card->perf_stats.inbound_time += qeth_get_micros() -
558 card->perf_stats.inbound_start_time;
562 static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac,
563 enum qeth_ipa_cmds ipacmd)
565 struct qeth_ipa_cmd *cmd;
566 struct qeth_cmd_buffer *iob;
568 QETH_CARD_TEXT(card, 2, "L2sdmac");
569 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
572 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
573 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
574 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
575 return qeth_send_ipa_cmd(card, iob, NULL, NULL);
578 static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac)
582 QETH_CARD_TEXT(card, 2, "L2Setmac");
583 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
586 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
587 memcpy(card->dev->dev_addr, mac, OSA_ADDR_LEN);
588 dev_info(&card->gdev->dev,
589 "MAC address %pM successfully registered on device %s\n",
590 card->dev->dev_addr, card->dev->name);
592 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
595 dev_warn(&card->gdev->dev,
596 "MAC address %pM already exists\n", mac);
599 dev_warn(&card->gdev->dev,
600 "MAC address %pM is not authorized\n", mac);
607 static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac)
611 QETH_CARD_TEXT(card, 2, "L2Delmac");
612 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
614 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
617 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
621 static int qeth_l2_request_initial_mac(struct qeth_card *card)
624 char vendor_pre[] = {0x02, 0x00, 0x00};
626 QETH_DBF_TEXT(SETUP, 2, "doL2init");
627 QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card));
629 if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
630 rc = qeth_query_setadapterparms(card);
632 QETH_DBF_MESSAGE(2, "could not query adapter "
633 "parameters on device %s: x%x\n",
634 CARD_BUS_ID(card), rc);
638 if (card->info.type == QETH_CARD_TYPE_IQD ||
639 card->info.type == QETH_CARD_TYPE_OSM ||
640 card->info.type == QETH_CARD_TYPE_OSX ||
641 card->info.guestlan) {
642 rc = qeth_setadpparms_change_macaddr(card);
644 QETH_DBF_MESSAGE(2, "couldn't get MAC address on "
645 "device %s: x%x\n", CARD_BUS_ID(card), rc);
646 QETH_DBF_TEXT_(SETUP, 2, "1err%04x", rc);
649 QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN);
651 eth_random_addr(card->dev->dev_addr);
652 memcpy(card->dev->dev_addr, vendor_pre, 3);
657 static int qeth_l2_set_mac_address(struct net_device *dev, void *p)
659 struct sockaddr *addr = p;
660 struct qeth_card *card = dev->ml_priv;
663 QETH_CARD_TEXT(card, 3, "setmac");
665 if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) {
666 QETH_CARD_TEXT(card, 3, "setmcINV");
670 if (card->info.type == QETH_CARD_TYPE_OSN ||
671 card->info.type == QETH_CARD_TYPE_OSM ||
672 card->info.type == QETH_CARD_TYPE_OSX) {
673 QETH_CARD_TEXT(card, 3, "setmcTYP");
676 QETH_CARD_HEX(card, 3, addr->sa_data, OSA_ADDR_LEN);
677 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
678 QETH_CARD_TEXT(card, 3, "setmcREC");
681 rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]);
682 if (!rc || (rc == -ENOENT))
683 rc = qeth_l2_send_setmac(card, addr->sa_data);
684 return rc ? -EINVAL : 0;
687 static void qeth_l2_set_multicast_list(struct net_device *dev)
689 struct qeth_card *card = dev->ml_priv;
690 struct netdev_hw_addr *ha;
692 if (card->info.type == QETH_CARD_TYPE_OSN)
695 QETH_CARD_TEXT(card, 3, "setmulti");
696 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
697 (card->state != CARD_STATE_UP))
699 qeth_l2_del_all_mc(card, 1);
700 spin_lock_bh(&card->mclock);
701 netdev_for_each_mc_addr(ha, dev)
702 qeth_l2_add_mc(card, ha->addr, 0);
704 netdev_for_each_uc_addr(ha, dev)
705 qeth_l2_add_mc(card, ha->addr, 1);
707 spin_unlock_bh(&card->mclock);
708 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
710 qeth_setadp_promisc_mode(card);
713 static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
716 struct qeth_hdr *hdr = NULL;
718 struct qeth_card *card = dev->ml_priv;
719 struct sk_buff *new_skb = skb;
720 int cast_type = qeth_l2_get_cast_type(card, skb);
721 struct qeth_qdio_out_q *queue;
722 int tx_bytes = skb->len;
723 int data_offset = -1;
724 int elements_needed = 0;
727 if (card->qdio.do_prio_queueing || (cast_type &&
728 card->info.is_multicast_different))
729 queue = card->qdio.out_qs[qeth_get_priority_queue(card, skb,
730 qeth_get_ip_version(skb), cast_type)];
732 queue = card->qdio.out_qs[card->qdio.default_out_queue];
734 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
735 card->stats.tx_carrier_errors++;
739 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
740 (skb->protocol == htons(ETH_P_IPV6)))
743 if (card->options.performance_stats) {
744 card->perf_stats.outbound_cnt++;
745 card->perf_stats.outbound_start_time = qeth_get_micros();
747 netif_stop_queue(dev);
749 if (card->info.type == QETH_CARD_TYPE_OSN)
750 hdr = (struct qeth_hdr *)skb->data;
752 if (card->info.type == QETH_CARD_TYPE_IQD) {
754 data_offset = ETH_HLEN;
756 hdr = kmem_cache_alloc(qeth_core_header_cache,
761 skb_reset_mac_header(new_skb);
762 qeth_l2_fill_header(card, hdr, new_skb, cast_type);
763 hdr->hdr.l2.pkt_length = new_skb->len;
764 memcpy(((char *)hdr) + sizeof(struct qeth_hdr),
765 skb_mac_header(new_skb), ETH_HLEN);
767 /* create a clone with writeable headroom */
768 new_skb = skb_realloc_headroom(skb,
769 sizeof(struct qeth_hdr));
772 hdr = (struct qeth_hdr *)skb_push(new_skb,
773 sizeof(struct qeth_hdr));
774 skb_set_mac_header(new_skb, sizeof(struct qeth_hdr));
775 qeth_l2_fill_header(card, hdr, new_skb, cast_type);
779 elements = qeth_get_elements_no(card, new_skb, elements_needed);
781 if (data_offset >= 0)
782 kmem_cache_free(qeth_core_header_cache, hdr);
786 if (card->info.type != QETH_CARD_TYPE_IQD) {
787 if (qeth_hdr_chk_and_bounce(new_skb, &hdr,
788 sizeof(struct qeth_hdr_layer2)))
790 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
793 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
794 elements, data_offset, hd_len);
796 card->stats.tx_packets++;
797 card->stats.tx_bytes += tx_bytes;
799 dev_kfree_skb_any(skb);
802 if (data_offset >= 0)
803 kmem_cache_free(qeth_core_header_cache, hdr);
807 dev_kfree_skb_any(new_skb);
808 return NETDEV_TX_BUSY;
813 netif_wake_queue(dev);
814 if (card->options.performance_stats)
815 card->perf_stats.outbound_time += qeth_get_micros() -
816 card->perf_stats.outbound_start_time;
820 card->stats.tx_dropped++;
821 card->stats.tx_errors++;
822 if ((new_skb != skb) && new_skb)
823 dev_kfree_skb_any(new_skb);
824 dev_kfree_skb_any(skb);
825 netif_wake_queue(dev);
829 static int __qeth_l2_open(struct net_device *dev)
831 struct qeth_card *card = dev->ml_priv;
834 QETH_CARD_TEXT(card, 4, "qethopen");
835 if (card->state == CARD_STATE_UP)
837 if (card->state != CARD_STATE_SOFTSETUP)
840 if ((card->info.type != QETH_CARD_TYPE_OSN) &&
841 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
842 QETH_CARD_TEXT(card, 4, "nomacadr");
845 card->data.state = CH_STATE_UP;
846 card->state = CARD_STATE_UP;
847 netif_start_queue(dev);
849 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
850 napi_enable(&card->napi);
851 napi_schedule(&card->napi);
857 static int qeth_l2_open(struct net_device *dev)
859 struct qeth_card *card = dev->ml_priv;
861 QETH_CARD_TEXT(card, 5, "qethope_");
862 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
863 QETH_CARD_TEXT(card, 3, "openREC");
866 return __qeth_l2_open(dev);
869 static int qeth_l2_stop(struct net_device *dev)
871 struct qeth_card *card = dev->ml_priv;
873 QETH_CARD_TEXT(card, 4, "qethstop");
874 netif_tx_disable(dev);
875 if (card->state == CARD_STATE_UP) {
876 card->state = CARD_STATE_SOFTSETUP;
877 napi_disable(&card->napi);
882 static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
884 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
886 qeth_l2_create_device_attributes(&gdev->dev);
887 INIT_LIST_HEAD(&card->vid_list);
888 INIT_LIST_HEAD(&card->mc_list);
889 card->options.layer2 = 1;
890 card->info.hwtrap = 0;
894 static void qeth_l2_remove_device(struct ccwgroup_device *cgdev)
896 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
898 qeth_l2_remove_device_attributes(&cgdev->dev);
899 qeth_set_allowed_threads(card, 0, 1);
900 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
902 if (cgdev->state == CCWGROUP_ONLINE)
903 qeth_l2_set_offline(cgdev);
906 unregister_netdev(card->dev);
912 static const struct ethtool_ops qeth_l2_ethtool_ops = {
913 .get_link = ethtool_op_get_link,
914 .get_strings = qeth_core_get_strings,
915 .get_ethtool_stats = qeth_core_get_ethtool_stats,
916 .get_sset_count = qeth_core_get_sset_count,
917 .get_drvinfo = qeth_core_get_drvinfo,
918 .get_settings = qeth_core_ethtool_get_settings,
921 static const struct ethtool_ops qeth_l2_osn_ops = {
922 .get_strings = qeth_core_get_strings,
923 .get_ethtool_stats = qeth_core_get_ethtool_stats,
924 .get_sset_count = qeth_core_get_sset_count,
925 .get_drvinfo = qeth_core_get_drvinfo,
928 static const struct net_device_ops qeth_l2_netdev_ops = {
929 .ndo_open = qeth_l2_open,
930 .ndo_stop = qeth_l2_stop,
931 .ndo_get_stats = qeth_get_stats,
932 .ndo_start_xmit = qeth_l2_hard_start_xmit,
933 .ndo_validate_addr = eth_validate_addr,
934 .ndo_set_rx_mode = qeth_l2_set_multicast_list,
935 .ndo_do_ioctl = qeth_l2_do_ioctl,
936 .ndo_set_mac_address = qeth_l2_set_mac_address,
937 .ndo_change_mtu = qeth_change_mtu,
938 .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid,
939 .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid,
940 .ndo_tx_timeout = qeth_tx_timeout,
943 static int qeth_l2_setup_netdev(struct qeth_card *card)
945 switch (card->info.type) {
946 case QETH_CARD_TYPE_IQD:
947 card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN,
950 case QETH_CARD_TYPE_OSN:
951 card->dev = alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN,
953 card->dev->flags |= IFF_NOARP;
956 card->dev = alloc_etherdev(0);
962 card->dev->ml_priv = card;
963 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
964 card->dev->mtu = card->info.initial_mtu;
965 card->dev->netdev_ops = &qeth_l2_netdev_ops;
966 card->dev->ethtool_ops =
967 (card->info.type != QETH_CARD_TYPE_OSN) ?
968 &qeth_l2_ethtool_ops : &qeth_l2_osn_ops;
969 card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
970 card->info.broadcast_capable = 1;
971 qeth_l2_request_initial_mac(card);
972 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
973 netif_napi_add(card->dev, &card->napi, qeth_l2_poll, QETH_NAPI_WEIGHT);
974 return register_netdev(card->dev);
977 static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
979 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
981 enum qeth_card_states recover_flag;
983 mutex_lock(&card->discipline_mutex);
984 mutex_lock(&card->conf_mutex);
985 QETH_DBF_TEXT(SETUP, 2, "setonlin");
986 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
988 recover_flag = card->state;
989 rc = qeth_core_hardsetup_card(card);
991 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
995 qeth_bridgeport_query_support(card);
996 if (card->options.sbp.supported_funcs)
997 dev_info(&card->gdev->dev,
998 "The device represents a HiperSockets Bridge Capable Port\n");
999 qeth_trace_features(card);
1001 if (!card->dev && qeth_l2_setup_netdev(card)) {
1006 if (card->info.type != QETH_CARD_TYPE_OSN)
1007 qeth_l2_send_setmac(card, &card->dev->dev_addr[0]);
1009 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
1010 if (card->info.hwtrap &&
1011 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
1012 card->info.hwtrap = 0;
1014 card->info.hwtrap = 0;
1016 qeth_l2_setup_bridgeport_attrs(card);
1018 card->state = CARD_STATE_HARDSETUP;
1019 memset(&card->rx, 0, sizeof(struct qeth_rx));
1020 qeth_print_status_message(card);
1023 QETH_DBF_TEXT(SETUP, 2, "softsetp");
1025 rc = qeth_send_startlan(card);
1027 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
1029 dev_warn(&card->gdev->dev,
1030 "The LAN is offline\n");
1031 card->lan_online = 0;
1037 card->lan_online = 1;
1040 if ((card->info.type == QETH_CARD_TYPE_OSD) ||
1041 (card->info.type == QETH_CARD_TYPE_OSX)) {
1042 /* configure isolation level */
1043 rc = qeth_set_access_ctrl_online(card, 0);
1050 if (card->info.type != QETH_CARD_TYPE_OSN &&
1051 card->info.type != QETH_CARD_TYPE_OSM)
1052 qeth_l2_process_vlans(card);
1054 netif_tx_disable(card->dev);
1056 rc = qeth_init_qdio_queues(card);
1058 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
1062 card->state = CARD_STATE_SOFTSETUP;
1063 if (card->lan_online)
1064 netif_carrier_on(card->dev);
1066 netif_carrier_off(card->dev);
1068 qeth_set_allowed_threads(card, 0xffffffff, 0);
1069 if (recover_flag == CARD_STATE_RECOVER) {
1070 if (recovery_mode &&
1071 card->info.type != QETH_CARD_TYPE_OSN) {
1072 __qeth_l2_open(card->dev);
1075 dev_open(card->dev);
1078 /* this also sets saved unicast addresses */
1079 qeth_l2_set_multicast_list(card->dev);
1081 /* let user_space know that device is online */
1082 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
1083 mutex_unlock(&card->conf_mutex);
1084 mutex_unlock(&card->discipline_mutex);
1088 qeth_l2_stop_card(card, 0);
1089 ccw_device_set_offline(CARD_DDEV(card));
1090 ccw_device_set_offline(CARD_WDEV(card));
1091 ccw_device_set_offline(CARD_RDEV(card));
1092 qdio_free(CARD_DDEV(card));
1093 if (recover_flag == CARD_STATE_RECOVER)
1094 card->state = CARD_STATE_RECOVER;
1096 card->state = CARD_STATE_DOWN;
1097 mutex_unlock(&card->conf_mutex);
1098 mutex_unlock(&card->discipline_mutex);
1102 static int qeth_l2_set_online(struct ccwgroup_device *gdev)
1104 return __qeth_l2_set_online(gdev, 0);
1107 static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev,
1110 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
1111 int rc = 0, rc2 = 0, rc3 = 0;
1112 enum qeth_card_states recover_flag;
1114 mutex_lock(&card->discipline_mutex);
1115 mutex_lock(&card->conf_mutex);
1116 QETH_DBF_TEXT(SETUP, 3, "setoffl");
1117 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
1119 if (card->dev && netif_carrier_ok(card->dev))
1120 netif_carrier_off(card->dev);
1121 recover_flag = card->state;
1122 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
1123 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1124 card->info.hwtrap = 1;
1126 qeth_l2_stop_card(card, recovery_mode);
1127 rc = ccw_device_set_offline(CARD_DDEV(card));
1128 rc2 = ccw_device_set_offline(CARD_WDEV(card));
1129 rc3 = ccw_device_set_offline(CARD_RDEV(card));
1131 rc = (rc2) ? rc2 : rc3;
1133 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
1134 qdio_free(CARD_DDEV(card));
1135 if (recover_flag == CARD_STATE_UP)
1136 card->state = CARD_STATE_RECOVER;
1137 /* let user_space know that device is offline */
1138 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
1139 mutex_unlock(&card->conf_mutex);
1140 mutex_unlock(&card->discipline_mutex);
1144 static int qeth_l2_set_offline(struct ccwgroup_device *cgdev)
1146 return __qeth_l2_set_offline(cgdev, 0);
1149 static int qeth_l2_recover(void *ptr)
1151 struct qeth_card *card;
1154 card = (struct qeth_card *) ptr;
1155 QETH_CARD_TEXT(card, 2, "recover1");
1156 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
1158 QETH_CARD_TEXT(card, 2, "recover2");
1159 dev_warn(&card->gdev->dev,
1160 "A recovery process has been started for the device\n");
1161 qeth_set_recovery_task(card);
1162 __qeth_l2_set_offline(card->gdev, 1);
1163 rc = __qeth_l2_set_online(card->gdev, 1);
1165 dev_info(&card->gdev->dev,
1166 "Device successfully recovered!\n");
1168 qeth_close_dev(card);
1169 dev_warn(&card->gdev->dev, "The qeth device driver "
1170 "failed to recover an error on the device\n");
1172 qeth_clear_recovery_task(card);
1173 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1174 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
1178 static int __init qeth_l2_init(void)
1180 pr_info("register layer 2 discipline\n");
1184 static void __exit qeth_l2_exit(void)
1186 pr_info("unregister layer 2 discipline\n");
1189 static void qeth_l2_shutdown(struct ccwgroup_device *gdev)
1191 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1192 qeth_set_allowed_threads(card, 0, 1);
1193 if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)
1194 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1195 qeth_qdio_clear_card(card, 0);
1196 qeth_clear_qdio_buffers(card);
1197 qdio_free(CARD_DDEV(card));
1200 static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev)
1202 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1205 netif_device_detach(card->dev);
1206 qeth_set_allowed_threads(card, 0, 1);
1207 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
1208 if (gdev->state == CCWGROUP_OFFLINE)
1210 if (card->state == CARD_STATE_UP) {
1211 if (card->info.hwtrap)
1212 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1213 __qeth_l2_set_offline(card->gdev, 1);
1215 __qeth_l2_set_offline(card->gdev, 0);
1219 static int qeth_l2_pm_resume(struct ccwgroup_device *gdev)
1221 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1224 if (gdev->state == CCWGROUP_OFFLINE)
1227 if (card->state == CARD_STATE_RECOVER) {
1228 rc = __qeth_l2_set_online(card->gdev, 1);
1231 dev_close(card->dev);
1235 rc = __qeth_l2_set_online(card->gdev, 0);
1237 qeth_set_allowed_threads(card, 0xffffffff, 0);
1239 netif_device_attach(card->dev);
1241 dev_warn(&card->gdev->dev, "The qeth device driver "
1242 "failed to recover an error on the device\n");
1246 /* Returns zero if the command is successfully "consumed" */
1247 static int qeth_l2_control_event(struct qeth_card *card,
1248 struct qeth_ipa_cmd *cmd)
1250 switch (cmd->hdr.command) {
1251 case IPA_CMD_SETBRIDGEPORT:
1252 if (cmd->data.sbp.hdr.command_code ==
1253 IPA_SBP_BRIDGE_PORT_STATE_CHANGE) {
1254 qeth_bridge_state_change(card, cmd);
1258 case IPA_CMD_ADDRESS_CHANGE_NOTIF:
1259 qeth_bridge_host_event(card, cmd);
1266 struct qeth_discipline qeth_l2_discipline = {
1267 .start_poll = qeth_qdio_start_poll,
1268 .input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
1269 .output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
1270 .recover = qeth_l2_recover,
1271 .setup = qeth_l2_probe_device,
1272 .remove = qeth_l2_remove_device,
1273 .set_online = qeth_l2_set_online,
1274 .set_offline = qeth_l2_set_offline,
1275 .shutdown = qeth_l2_shutdown,
1276 .freeze = qeth_l2_pm_suspend,
1277 .thaw = qeth_l2_pm_resume,
1278 .restore = qeth_l2_pm_resume,
1279 .control_event_handler = qeth_l2_control_event,
1281 EXPORT_SYMBOL_GPL(qeth_l2_discipline);
1283 static int qeth_osn_send_control_data(struct qeth_card *card, int len,
1284 struct qeth_cmd_buffer *iob)
1286 unsigned long flags;
1289 QETH_CARD_TEXT(card, 5, "osndctrd");
1291 wait_event(card->wait_q,
1292 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1293 qeth_prepare_control_data(card, len, iob);
1294 QETH_CARD_TEXT(card, 6, "osnoirqp");
1295 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1296 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1297 (addr_t) iob, 0, 0);
1298 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1300 QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: "
1301 "ccw_device_start rc = %i\n", rc);
1302 QETH_CARD_TEXT_(card, 2, " err%d", rc);
1303 qeth_release_buffer(iob->channel, iob);
1304 atomic_set(&card->write.irq_pending, 0);
1305 wake_up(&card->wait_q);
1310 static int qeth_osn_send_ipa_cmd(struct qeth_card *card,
1311 struct qeth_cmd_buffer *iob, int data_len)
1315 QETH_CARD_TEXT(card, 4, "osndipa");
1317 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1318 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1320 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1321 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1322 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1323 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1324 return qeth_osn_send_control_data(card, s1, iob);
1327 int qeth_osn_assist(struct net_device *dev, void *data, int data_len)
1329 struct qeth_cmd_buffer *iob;
1330 struct qeth_card *card;
1335 card = dev->ml_priv;
1338 QETH_CARD_TEXT(card, 2, "osnsdmc");
1339 if ((card->state != CARD_STATE_UP) &&
1340 (card->state != CARD_STATE_SOFTSETUP))
1342 iob = qeth_wait_for_buffer(&card->write);
1343 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
1344 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
1347 EXPORT_SYMBOL(qeth_osn_assist);
1349 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev,
1350 int (*assist_cb)(struct net_device *, void *),
1351 int (*data_cb)(struct sk_buff *))
1353 struct qeth_card *card;
1355 *dev = qeth_l2_netdev_by_devno(read_dev_no);
1358 card = (*dev)->ml_priv;
1361 QETH_CARD_TEXT(card, 2, "osnreg");
1362 if ((assist_cb == NULL) || (data_cb == NULL))
1364 card->osn_info.assist_cb = assist_cb;
1365 card->osn_info.data_cb = data_cb;
1368 EXPORT_SYMBOL(qeth_osn_register);
1370 void qeth_osn_deregister(struct net_device *dev)
1372 struct qeth_card *card;
1376 card = dev->ml_priv;
1379 QETH_CARD_TEXT(card, 2, "osndereg");
1380 card->osn_info.assist_cb = NULL;
1381 card->osn_info.data_cb = NULL;
1384 EXPORT_SYMBOL(qeth_osn_deregister);
1386 /* SETBRIDGEPORT support, async notifications */
1388 enum qeth_an_event_type {anev_reg_unreg, anev_abort, anev_reset};
1391 * qeth_bridge_emit_host_event() - bridgeport address change notification
1392 * @card: qeth_card structure pointer, for udev events.
1393 * @evtype: "normal" register/unregister, or abort, or reset. For abort
1394 * and reset token and addr_lnid are unused and may be NULL.
1395 * @code: event bitmask: high order bit 0x80 value 1 means removal of an
1396 * object, 0 - addition of an object.
1397 * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC.
1398 * @token: "network token" structure identifying physical address of the port.
1399 * @addr_lnid: pointer to structure with MAC address and VLAN ID.
1401 * This function is called when registrations and deregistrations are
1402 * reported by the hardware, and also when notifications are enabled -
1403 * for all currently registered addresses.
1405 static void qeth_bridge_emit_host_event(struct qeth_card *card,
1406 enum qeth_an_event_type evtype,
1407 u8 code, struct net_if_token *token, struct mac_addr_lnid *addr_lnid)
1414 case anev_reg_unreg:
1415 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=%s",
1416 (code & IPA_ADDR_CHANGE_CODE_REMOVAL)
1417 ? "deregister" : "register");
1418 env[i] = str[i]; i++;
1419 if (code & IPA_ADDR_CHANGE_CODE_VLANID) {
1420 snprintf(str[i], sizeof(str[i]), "VLAN=%d",
1422 env[i] = str[i]; i++;
1424 if (code & IPA_ADDR_CHANGE_CODE_MACADDR) {
1425 snprintf(str[i], sizeof(str[i]), "MAC=%pM6",
1427 env[i] = str[i]; i++;
1429 snprintf(str[i], sizeof(str[i]), "NTOK_BUSID=%x.%x.%04x",
1430 token->cssid, token->ssid, token->devnum);
1431 env[i] = str[i]; i++;
1432 snprintf(str[i], sizeof(str[i]), "NTOK_IID=%02x", token->iid);
1433 env[i] = str[i]; i++;
1434 snprintf(str[i], sizeof(str[i]), "NTOK_CHPID=%02x",
1436 env[i] = str[i]; i++;
1437 snprintf(str[i], sizeof(str[i]), "NTOK_CHID=%04x", token->chid);
1438 env[i] = str[i]; i++;
1441 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=abort");
1442 env[i] = str[i]; i++;
1445 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=reset");
1446 env[i] = str[i]; i++;
1450 kobject_uevent_env(&card->gdev->dev.kobj, KOBJ_CHANGE, env);
1453 struct qeth_bridge_state_data {
1454 struct work_struct worker;
1455 struct qeth_card *card;
1456 struct qeth_sbp_state_change qports;
1459 static void qeth_bridge_state_change_worker(struct work_struct *work)
1461 struct qeth_bridge_state_data *data =
1462 container_of(work, struct qeth_bridge_state_data, worker);
1463 /* We are only interested in the first entry - local port */
1464 struct qeth_sbp_port_entry *entry = &data->qports.entry[0];
1465 char env_locrem[32];
1475 /* Role should not change by itself, but if it did, */
1476 /* information from the hardware is authoritative. */
1477 mutex_lock(&data->card->conf_mutex);
1478 data->card->options.sbp.role = entry->role;
1479 mutex_unlock(&data->card->conf_mutex);
1481 snprintf(env_locrem, sizeof(env_locrem), "BRIDGEPORT=statechange");
1482 snprintf(env_role, sizeof(env_role), "ROLE=%s",
1483 (entry->role == QETH_SBP_ROLE_NONE) ? "none" :
1484 (entry->role == QETH_SBP_ROLE_PRIMARY) ? "primary" :
1485 (entry->role == QETH_SBP_ROLE_SECONDARY) ? "secondary" :
1487 snprintf(env_state, sizeof(env_state), "STATE=%s",
1488 (entry->state == QETH_SBP_STATE_INACTIVE) ? "inactive" :
1489 (entry->state == QETH_SBP_STATE_STANDBY) ? "standby" :
1490 (entry->state == QETH_SBP_STATE_ACTIVE) ? "active" :
1492 kobject_uevent_env(&data->card->gdev->dev.kobj,
1497 static void qeth_bridge_state_change(struct qeth_card *card,
1498 struct qeth_ipa_cmd *cmd)
1500 struct qeth_sbp_state_change *qports =
1501 &cmd->data.sbp.data.state_change;
1502 struct qeth_bridge_state_data *data;
1505 QETH_CARD_TEXT(card, 2, "brstchng");
1506 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
1507 QETH_CARD_TEXT_(card, 2, "BPsz%04x", qports->entry_length);
1510 extrasize = sizeof(struct qeth_sbp_port_entry) * qports->num_entries;
1511 data = kzalloc(sizeof(struct qeth_bridge_state_data) + extrasize,
1514 QETH_CARD_TEXT(card, 2, "BPSalloc");
1517 INIT_WORK(&data->worker, qeth_bridge_state_change_worker);
1519 memcpy(&data->qports, qports,
1520 sizeof(struct qeth_sbp_state_change) + extrasize);
1521 queue_work(qeth_wq, &data->worker);
1524 struct qeth_bridge_host_data {
1525 struct work_struct worker;
1526 struct qeth_card *card;
1527 struct qeth_ipacmd_addr_change hostevs;
1530 static void qeth_bridge_host_event_worker(struct work_struct *work)
1532 struct qeth_bridge_host_data *data =
1533 container_of(work, struct qeth_bridge_host_data, worker);
1536 if (data->hostevs.lost_event_mask) {
1537 dev_info(&data->card->gdev->dev,
1538 "Address notification from the HiperSockets Bridge Port stopped %s (%s)\n",
1539 data->card->dev->name,
1540 (data->hostevs.lost_event_mask == 0x01)
1542 : (data->hostevs.lost_event_mask == 0x02)
1543 ? "Bridge port state change"
1544 : "Unknown reason");
1545 mutex_lock(&data->card->conf_mutex);
1546 data->card->options.sbp.hostnotification = 0;
1547 mutex_unlock(&data->card->conf_mutex);
1548 qeth_bridge_emit_host_event(data->card, anev_abort,
1551 for (i = 0; i < data->hostevs.num_entries; i++) {
1552 struct qeth_ipacmd_addr_change_entry *entry =
1553 &data->hostevs.entry[i];
1554 qeth_bridge_emit_host_event(data->card,
1557 &entry->token, &entry->addr_lnid);
1562 static void qeth_bridge_host_event(struct qeth_card *card,
1563 struct qeth_ipa_cmd *cmd)
1565 struct qeth_ipacmd_addr_change *hostevs =
1566 &cmd->data.addrchange;
1567 struct qeth_bridge_host_data *data;
1570 QETH_CARD_TEXT(card, 2, "brhostev");
1571 if (cmd->hdr.return_code != 0x0000) {
1572 if (cmd->hdr.return_code == 0x0010) {
1573 if (hostevs->lost_event_mask == 0x00)
1574 hostevs->lost_event_mask = 0xff;
1576 QETH_CARD_TEXT_(card, 2, "BPHe%04x",
1577 cmd->hdr.return_code);
1581 extrasize = sizeof(struct qeth_ipacmd_addr_change_entry) *
1582 hostevs->num_entries;
1583 data = kzalloc(sizeof(struct qeth_bridge_host_data) + extrasize,
1586 QETH_CARD_TEXT(card, 2, "BPHalloc");
1589 INIT_WORK(&data->worker, qeth_bridge_host_event_worker);
1591 memcpy(&data->hostevs, hostevs,
1592 sizeof(struct qeth_ipacmd_addr_change) + extrasize);
1593 queue_work(qeth_wq, &data->worker);
1596 /* SETBRIDGEPORT support; sending commands */
1598 struct _qeth_sbp_cbctl {
1604 enum qeth_sbp_roles *role;
1605 enum qeth_sbp_states *state;
1611 * qeth_bridgeport_makerc() - derive "traditional" error from hardware codes.
1612 * @card: qeth_card structure pointer, for debug messages.
1613 * @cbctl: state structure with hardware return codes.
1614 * @setcmd: IPA command code
1616 * Returns negative errno-compatible error indication or 0 on success.
1618 static int qeth_bridgeport_makerc(struct qeth_card *card,
1619 struct _qeth_sbp_cbctl *cbctl, enum qeth_ipa_sbp_cmd setcmd)
1623 switch (cbctl->ipa_rc) {
1624 case IPA_RC_SUCCESS:
1625 switch (cbctl->cmd_rc) {
1632 case 0x000C: /* Not configured as bridge Port */
1633 rc = -ENODEV; /* maybe not the best code here? */
1634 dev_err(&card->gdev->dev,
1635 "The HiperSockets device is not configured as a Bridge Port\n");
1637 case 0x0014: /* Another device is Primary */
1639 case IPA_SBP_SET_PRIMARY_BRIDGE_PORT:
1641 dev_err(&card->gdev->dev,
1642 "The HiperSockets LAN already has a primary Bridge Port\n");
1644 case IPA_SBP_SET_SECONDARY_BRIDGE_PORT:
1646 dev_err(&card->gdev->dev,
1647 "The HiperSockets device is already a primary Bridge Port\n");
1653 case 0x0018: /* This device is currently Secondary */
1655 dev_err(&card->gdev->dev,
1656 "The HiperSockets device is already a secondary Bridge Port\n");
1658 case 0x001C: /* Limit for Secondary devices reached */
1660 dev_err(&card->gdev->dev,
1661 "The HiperSockets LAN cannot have more secondary Bridge Ports\n");
1663 case 0x0024: /* This device is currently Primary */
1665 dev_err(&card->gdev->dev,
1666 "The HiperSockets device is already a primary Bridge Port\n");
1668 case 0x0020: /* Not authorized by zManager */
1670 dev_err(&card->gdev->dev,
1671 "The HiperSockets device is not authorized to be a Bridge Port\n");
1677 case IPA_RC_NOTSUPP:
1680 case IPA_RC_UNSUPPORTED_COMMAND:
1687 QETH_CARD_TEXT_(card, 2, "SBPi%04x", cbctl->ipa_rc);
1688 QETH_CARD_TEXT_(card, 2, "SBPc%04x", cbctl->cmd_rc);
1693 static int qeth_bridgeport_query_support_cb(struct qeth_card *card,
1694 struct qeth_reply *reply, unsigned long data)
1696 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1697 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1698 QETH_CARD_TEXT(card, 2, "brqsupcb");
1699 cbctl->ipa_rc = cmd->hdr.return_code;
1700 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1701 if ((cbctl->ipa_rc == 0) && (cbctl->cmd_rc == 0)) {
1702 cbctl->data.supported =
1703 cmd->data.sbp.data.query_cmds_supp.supported_cmds;
1705 cbctl->data.supported = 0;
1711 * qeth_bridgeport_query_support() - store bitmask of supported subfunctions.
1712 * @card: qeth_card structure pointer.
1714 * Sets bitmask of supported setbridgeport subfunctions in the qeth_card
1715 * strucutre: card->options.sbp.supported_funcs.
1717 static void qeth_bridgeport_query_support(struct qeth_card *card)
1719 struct qeth_cmd_buffer *iob;
1720 struct qeth_ipa_cmd *cmd;
1721 struct _qeth_sbp_cbctl cbctl;
1723 QETH_CARD_TEXT(card, 2, "brqsuppo");
1724 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETBRIDGEPORT, 0);
1727 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1728 cmd->data.sbp.hdr.cmdlength =
1729 sizeof(struct qeth_ipacmd_sbp_hdr) +
1730 sizeof(struct qeth_sbp_query_cmds_supp);
1731 cmd->data.sbp.hdr.command_code =
1732 IPA_SBP_QUERY_COMMANDS_SUPPORTED;
1733 cmd->data.sbp.hdr.used_total = 1;
1734 cmd->data.sbp.hdr.seq_no = 1;
1735 if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb,
1737 qeth_bridgeport_makerc(card, &cbctl,
1738 IPA_SBP_QUERY_COMMANDS_SUPPORTED)) {
1739 /* non-zero makerc signifies failure, and produce messages */
1740 card->options.sbp.role = QETH_SBP_ROLE_NONE;
1743 card->options.sbp.supported_funcs = cbctl.data.supported;
1746 static int qeth_bridgeport_query_ports_cb(struct qeth_card *card,
1747 struct qeth_reply *reply, unsigned long data)
1749 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1750 struct qeth_sbp_query_ports *qports = &cmd->data.sbp.data.query_ports;
1751 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1753 QETH_CARD_TEXT(card, 2, "brqprtcb");
1754 cbctl->ipa_rc = cmd->hdr.return_code;
1755 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1756 if ((cbctl->ipa_rc != 0) || (cbctl->cmd_rc != 0))
1758 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
1759 cbctl->cmd_rc = 0xffff;
1760 QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length);
1763 /* first entry contains the state of the local port */
1764 if (qports->num_entries > 0) {
1765 if (cbctl->data.qports.role)
1766 *cbctl->data.qports.role = qports->entry[0].role;
1767 if (cbctl->data.qports.state)
1768 *cbctl->data.qports.state = qports->entry[0].state;
1774 * qeth_bridgeport_query_ports() - query local bridgeport status.
1775 * @card: qeth_card structure pointer.
1776 * @role: Role of the port: 0-none, 1-primary, 2-secondary.
1777 * @state: State of the port: 0-inactive, 1-standby, 2-active.
1779 * Returns negative errno-compatible error indication or 0 on success.
1781 * 'role' and 'state' are not updated in case of hardware operation failure.
1783 int qeth_bridgeport_query_ports(struct qeth_card *card,
1784 enum qeth_sbp_roles *role, enum qeth_sbp_states *state)
1787 struct qeth_cmd_buffer *iob;
1788 struct qeth_ipa_cmd *cmd;
1789 struct _qeth_sbp_cbctl cbctl = {
1798 QETH_CARD_TEXT(card, 2, "brqports");
1799 if (!(card->options.sbp.supported_funcs & IPA_SBP_QUERY_BRIDGE_PORTS))
1801 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETBRIDGEPORT, 0);
1804 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1805 cmd->data.sbp.hdr.cmdlength =
1806 sizeof(struct qeth_ipacmd_sbp_hdr);
1807 cmd->data.sbp.hdr.command_code =
1808 IPA_SBP_QUERY_BRIDGE_PORTS;
1809 cmd->data.sbp.hdr.used_total = 1;
1810 cmd->data.sbp.hdr.seq_no = 1;
1811 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb,
1815 rc = qeth_bridgeport_makerc(card, &cbctl, IPA_SBP_QUERY_BRIDGE_PORTS);
1818 EXPORT_SYMBOL_GPL(qeth_bridgeport_query_ports);
1820 static int qeth_bridgeport_set_cb(struct qeth_card *card,
1821 struct qeth_reply *reply, unsigned long data)
1823 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data;
1824 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1825 QETH_CARD_TEXT(card, 2, "brsetrcb");
1826 cbctl->ipa_rc = cmd->hdr.return_code;
1827 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1832 * qeth_bridgeport_setrole() - Assign primary role to the port.
1833 * @card: qeth_card structure pointer.
1834 * @role: Role to assign.
1836 * Returns negative errno-compatible error indication or 0 on success.
1838 int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role)
1842 struct qeth_cmd_buffer *iob;
1843 struct qeth_ipa_cmd *cmd;
1844 struct _qeth_sbp_cbctl cbctl;
1845 enum qeth_ipa_sbp_cmd setcmd;
1847 QETH_CARD_TEXT(card, 2, "brsetrol");
1849 case QETH_SBP_ROLE_NONE:
1850 setcmd = IPA_SBP_RESET_BRIDGE_PORT_ROLE;
1851 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
1852 sizeof(struct qeth_sbp_reset_role);
1854 case QETH_SBP_ROLE_PRIMARY:
1855 setcmd = IPA_SBP_SET_PRIMARY_BRIDGE_PORT;
1856 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
1857 sizeof(struct qeth_sbp_set_primary);
1859 case QETH_SBP_ROLE_SECONDARY:
1860 setcmd = IPA_SBP_SET_SECONDARY_BRIDGE_PORT;
1861 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
1862 sizeof(struct qeth_sbp_set_secondary);
1867 if (!(card->options.sbp.supported_funcs & setcmd))
1869 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETBRIDGEPORT, 0);
1872 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1873 cmd->data.sbp.hdr.cmdlength = cmdlength;
1874 cmd->data.sbp.hdr.command_code = setcmd;
1875 cmd->data.sbp.hdr.used_total = 1;
1876 cmd->data.sbp.hdr.seq_no = 1;
1877 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb,
1881 rc = qeth_bridgeport_makerc(card, &cbctl, setcmd);
1886 * qeth_anset_makerc() - derive "traditional" error from hardware codes.
1887 * @card: qeth_card structure pointer, for debug messages.
1889 * Returns negative errno-compatible error indication or 0 on success.
1891 static int qeth_anset_makerc(struct qeth_card *card, int pnso_rc, u16 response)
1904 dev_err(&card->gdev->dev,
1905 "Setting address notification failed\n");
1917 QETH_CARD_TEXT_(card, 2, "SBPp%04x", pnso_rc);
1918 QETH_CARD_TEXT_(card, 2, "SBPr%04x", response);
1923 static void qeth_bridgeport_an_set_cb(void *priv,
1924 enum qdio_brinfo_entry_type type, void *entry)
1926 struct qeth_card *card = (struct qeth_card *)priv;
1927 struct qdio_brinfo_entry_l2 *l2entry;
1930 if (type != l2_addr_lnid) {
1935 l2entry = (struct qdio_brinfo_entry_l2 *)entry;
1936 code = IPA_ADDR_CHANGE_CODE_MACADDR;
1937 if (l2entry->addr_lnid.lnid)
1938 code |= IPA_ADDR_CHANGE_CODE_VLANID;
1939 qeth_bridge_emit_host_event(card, anev_reg_unreg, code,
1940 (struct net_if_token *)&l2entry->nit,
1941 (struct mac_addr_lnid *)&l2entry->addr_lnid);
1945 * qeth_bridgeport_an_set() - Enable or disable bridgeport address notification
1946 * @card: qeth_card structure pointer.
1947 * @enable: 0 - disable, non-zero - enable notifications
1949 * Returns negative errno-compatible error indication or 0 on success.
1951 * On enable, emits a series of address notifications udev events for all
1952 * currently registered hosts.
1954 int qeth_bridgeport_an_set(struct qeth_card *card, int enable)
1958 struct ccw_device *ddev;
1959 struct subchannel_id schid;
1963 if (!card->options.sbp.supported_funcs)
1965 ddev = CARD_DDEV(card);
1966 ccw_device_get_schid(ddev, &schid);
1969 qeth_bridge_emit_host_event(card, anev_reset, 0, NULL, NULL);
1970 rc = qdio_pnso_brinfo(schid, 1, &response,
1971 qeth_bridgeport_an_set_cb, card);
1973 rc = qdio_pnso_brinfo(schid, 0, &response, NULL, NULL);
1974 return qeth_anset_makerc(card, rc, response);
1976 EXPORT_SYMBOL_GPL(qeth_bridgeport_an_set);
1978 module_init(qeth_l2_init);
1979 module_exit(qeth_l2_exit);
1980 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
1981 MODULE_DESCRIPTION("qeth layer 2 discipline");
1982 MODULE_LICENSE("GPL");