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 netdev_features_t qeth_l2_fix_features(struct net_device *dev,
408 netdev_features_t features)
410 struct qeth_card *card = dev->ml_priv;
412 QETH_DBF_TEXT(SETUP, 2, "fixfeat");
413 if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
414 features &= ~NETIF_F_IP_CSUM;
415 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
416 features &= ~NETIF_F_RXCSUM;
417 QETH_DBF_HEX(SETUP, 2, &features, sizeof(features));
421 static int qeth_l2_set_features(struct net_device *dev,
422 netdev_features_t features)
424 struct qeth_card *card = dev->ml_priv;
425 netdev_features_t changed = dev->features ^ features;
427 QETH_DBF_TEXT(SETUP, 2, "setfeat");
428 QETH_DBF_HEX(SETUP, 2, &features, sizeof(features));
430 if (card->state == CARD_STATE_DOWN ||
431 card->state == CARD_STATE_RECOVER)
434 if (!(changed & NETIF_F_RXCSUM))
436 return qeth_set_rx_csum(card, features & NETIF_F_RXCSUM ? 1 : 0);
439 static void qeth_l2_stop_card(struct qeth_card *card, int recovery_mode)
441 QETH_DBF_TEXT(SETUP , 2, "stopcard");
442 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
444 qeth_set_allowed_threads(card, 0, 1);
445 if (card->read.state == CH_STATE_UP &&
446 card->write.state == CH_STATE_UP &&
447 (card->state == CARD_STATE_UP)) {
449 card->info.type != QETH_CARD_TYPE_OSN) {
450 qeth_l2_stop(card->dev);
453 dev_close(card->dev);
456 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
457 card->state = CARD_STATE_SOFTSETUP;
459 if (card->state == CARD_STATE_SOFTSETUP) {
460 qeth_l2_del_all_macs(card, 0);
461 qeth_clear_ipacmd_list(card);
462 card->state = CARD_STATE_HARDSETUP;
464 if (card->state == CARD_STATE_HARDSETUP) {
465 qeth_qdio_clear_card(card, 0);
466 qeth_clear_qdio_buffers(card);
467 qeth_clear_working_pool_list(card);
468 card->state = CARD_STATE_DOWN;
470 if (card->state == CARD_STATE_DOWN) {
471 qeth_clear_cmd_buffers(&card->read);
472 qeth_clear_cmd_buffers(&card->write);
476 static int qeth_l2_process_inbound_buffer(struct qeth_card *card,
477 int budget, int *done)
481 struct qeth_hdr *hdr;
485 WARN_ON_ONCE(!budget);
487 skb = qeth_core_get_next_skb(card,
488 &card->qdio.in_q->bufs[card->rx.b_index],
489 &card->rx.b_element, &card->rx.e_offset, &hdr);
494 skb->dev = card->dev;
495 switch (hdr->hdr.l2.id) {
496 case QETH_HEADER_TYPE_LAYER2:
497 skb->pkt_type = PACKET_HOST;
498 skb->protocol = eth_type_trans(skb, skb->dev);
499 if ((card->dev->features & NETIF_F_RXCSUM)
500 && ((hdr->hdr.l2.flags[1] &
501 (QETH_HDR_EXT_CSUM_HDR_REQ |
502 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
503 (QETH_HDR_EXT_CSUM_HDR_REQ |
504 QETH_HDR_EXT_CSUM_TRANSP_REQ)))
505 skb->ip_summed = CHECKSUM_UNNECESSARY;
507 skb->ip_summed = CHECKSUM_NONE;
508 if (skb->protocol == htons(ETH_P_802_2))
509 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
511 napi_gro_receive(&card->napi, skb);
513 case QETH_HEADER_TYPE_OSN:
514 if (card->info.type == QETH_CARD_TYPE_OSN) {
515 skb_push(skb, sizeof(struct qeth_hdr));
516 skb_copy_to_linear_data(skb, hdr,
517 sizeof(struct qeth_hdr));
519 card->osn_info.data_cb(skb);
524 dev_kfree_skb_any(skb);
525 QETH_CARD_TEXT(card, 3, "inbunkno");
526 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
531 card->stats.rx_packets++;
532 card->stats.rx_bytes += len;
537 static int qeth_l2_poll(struct napi_struct *napi, int budget)
539 struct qeth_card *card = container_of(napi, struct qeth_card, napi);
541 struct qeth_qdio_buffer *buffer;
543 int new_budget = budget;
545 if (card->options.performance_stats) {
546 card->perf_stats.inbound_cnt++;
547 card->perf_stats.inbound_start_time = qeth_get_micros();
551 if (!card->rx.b_count) {
552 card->rx.qdio_err = 0;
553 card->rx.b_count = qdio_get_next_buffers(
554 card->data.ccwdev, 0, &card->rx.b_index,
556 if (card->rx.b_count <= 0) {
557 card->rx.b_count = 0;
561 &card->qdio.in_q->bufs[card->rx.b_index]
563 card->rx.e_offset = 0;
566 while (card->rx.b_count) {
567 buffer = &card->qdio.in_q->bufs[card->rx.b_index];
568 if (!(card->rx.qdio_err &&
569 qeth_check_qdio_errors(card, buffer->buffer,
570 card->rx.qdio_err, "qinerr")))
571 work_done += qeth_l2_process_inbound_buffer(
572 card, new_budget, &done);
577 if (card->options.performance_stats)
578 card->perf_stats.bufs_rec++;
579 qeth_put_buffer_pool_entry(card,
581 qeth_queue_input_buffer(card, card->rx.b_index);
583 if (card->rx.b_count) {
585 (card->rx.b_index + 1) %
586 QDIO_MAX_BUFFERS_PER_Q;
589 ->bufs[card->rx.b_index]
591 card->rx.e_offset = 0;
595 if (work_done >= budget)
598 new_budget = budget - work_done;
603 if (qdio_start_irq(card->data.ccwdev, 0))
604 napi_schedule(&card->napi);
606 if (card->options.performance_stats)
607 card->perf_stats.inbound_time += qeth_get_micros() -
608 card->perf_stats.inbound_start_time;
612 static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac,
613 enum qeth_ipa_cmds ipacmd)
615 struct qeth_ipa_cmd *cmd;
616 struct qeth_cmd_buffer *iob;
618 QETH_CARD_TEXT(card, 2, "L2sdmac");
619 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
622 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
623 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
624 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
625 return qeth_send_ipa_cmd(card, iob, NULL, NULL);
628 static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac)
632 QETH_CARD_TEXT(card, 2, "L2Setmac");
633 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
636 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
637 memcpy(card->dev->dev_addr, mac, OSA_ADDR_LEN);
638 dev_info(&card->gdev->dev,
639 "MAC address %pM successfully registered on device %s\n",
640 card->dev->dev_addr, card->dev->name);
642 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
645 dev_warn(&card->gdev->dev,
646 "MAC address %pM already exists\n", mac);
649 dev_warn(&card->gdev->dev,
650 "MAC address %pM is not authorized\n", mac);
657 static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac)
661 QETH_CARD_TEXT(card, 2, "L2Delmac");
662 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
664 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
667 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
671 static int qeth_l2_request_initial_mac(struct qeth_card *card)
674 char vendor_pre[] = {0x02, 0x00, 0x00};
676 QETH_DBF_TEXT(SETUP, 2, "doL2init");
677 QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card));
679 if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
680 rc = qeth_query_setadapterparms(card);
682 QETH_DBF_MESSAGE(2, "could not query adapter "
683 "parameters on device %s: x%x\n",
684 CARD_BUS_ID(card), rc);
688 if (card->info.type == QETH_CARD_TYPE_IQD ||
689 card->info.type == QETH_CARD_TYPE_OSM ||
690 card->info.type == QETH_CARD_TYPE_OSX ||
691 card->info.guestlan) {
692 rc = qeth_setadpparms_change_macaddr(card);
694 QETH_DBF_MESSAGE(2, "couldn't get MAC address on "
695 "device %s: x%x\n", CARD_BUS_ID(card), rc);
696 QETH_DBF_TEXT_(SETUP, 2, "1err%04x", rc);
699 QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN);
701 eth_random_addr(card->dev->dev_addr);
702 memcpy(card->dev->dev_addr, vendor_pre, 3);
707 static int qeth_l2_set_mac_address(struct net_device *dev, void *p)
709 struct sockaddr *addr = p;
710 struct qeth_card *card = dev->ml_priv;
713 QETH_CARD_TEXT(card, 3, "setmac");
715 if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) {
716 QETH_CARD_TEXT(card, 3, "setmcINV");
720 if (card->info.type == QETH_CARD_TYPE_OSN ||
721 card->info.type == QETH_CARD_TYPE_OSM ||
722 card->info.type == QETH_CARD_TYPE_OSX) {
723 QETH_CARD_TEXT(card, 3, "setmcTYP");
726 QETH_CARD_HEX(card, 3, addr->sa_data, OSA_ADDR_LEN);
727 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
728 QETH_CARD_TEXT(card, 3, "setmcREC");
731 rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]);
732 if (!rc || (rc == -ENOENT))
733 rc = qeth_l2_send_setmac(card, addr->sa_data);
734 return rc ? -EINVAL : 0;
737 static void qeth_promisc_to_bridge(struct qeth_card *card)
739 struct net_device *dev = card->dev;
740 enum qeth_ipa_promisc_modes promisc_mode;
744 QETH_CARD_TEXT(card, 3, "pmisc2br");
746 if (!card->options.sbp.reflect_promisc)
748 promisc_mode = (dev->flags & IFF_PROMISC) ? SET_PROMISC_MODE_ON
749 : SET_PROMISC_MODE_OFF;
750 if (promisc_mode == card->info.promisc_mode)
753 if (promisc_mode == SET_PROMISC_MODE_ON) {
754 if (card->options.sbp.reflect_promisc_primary)
755 role = QETH_SBP_ROLE_PRIMARY;
757 role = QETH_SBP_ROLE_SECONDARY;
759 role = QETH_SBP_ROLE_NONE;
761 rc = qeth_bridgeport_setrole(card, role);
762 QETH_DBF_TEXT_(SETUP, 2, "bpm%c%04x",
763 (promisc_mode == SET_PROMISC_MODE_ON) ? '+' : '-', rc);
765 card->options.sbp.role = role;
766 card->info.promisc_mode = promisc_mode;
770 /* New MAC address is added to the hash table and marked to be written on card
771 * only if there is not in the hash table storage already
775 qeth_l2_add_mac(struct qeth_card *card, struct netdev_hw_addr *ha, u8 is_uc)
777 struct qeth_mac *mac;
779 hash_for_each_possible(card->mac_htable, mac, hnode,
780 qeth_l2_mac_hash(ha->addr)) {
781 if (is_uc == mac->is_uc &&
782 !memcmp(ha->addr, mac->mac_addr, OSA_ADDR_LEN)) {
783 mac->disp_flag = QETH_DISP_MAC_DO_NOTHING;
788 mac = kzalloc(sizeof(struct qeth_mac), GFP_ATOMIC);
793 memcpy(mac->mac_addr, ha->addr, OSA_ADDR_LEN);
795 mac->disp_flag = QETH_DISP_MAC_ADD;
797 hash_add(card->mac_htable, &mac->hnode,
798 qeth_l2_mac_hash(mac->mac_addr));
802 static void qeth_l2_set_rx_mode(struct net_device *dev)
804 struct qeth_card *card = dev->ml_priv;
805 struct netdev_hw_addr *ha;
806 struct qeth_mac *mac;
807 struct hlist_node *tmp;
811 if (card->info.type == QETH_CARD_TYPE_OSN)
814 QETH_CARD_TEXT(card, 3, "setmulti");
815 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
816 (card->state != CARD_STATE_UP))
819 spin_lock_bh(&card->mclock);
821 netdev_for_each_mc_addr(ha, dev)
822 qeth_l2_add_mac(card, ha, 0);
824 netdev_for_each_uc_addr(ha, dev)
825 qeth_l2_add_mac(card, ha, 1);
827 hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) {
828 if (mac->disp_flag == QETH_DISP_MAC_DELETE) {
830 rc = qeth_l2_send_delgroupmac(card,
833 rc = qeth_l2_send_setdelmac(card, mac->mac_addr,
837 hash_del(&mac->hnode);
840 } else if (mac->disp_flag == QETH_DISP_MAC_ADD) {
841 rc = qeth_l2_write_mac(card, mac);
843 hash_del(&mac->hnode);
846 mac->disp_flag = QETH_DISP_MAC_DELETE;
848 mac->disp_flag = QETH_DISP_MAC_DELETE;
851 spin_unlock_bh(&card->mclock);
853 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
854 qeth_setadp_promisc_mode(card);
856 qeth_promisc_to_bridge(card);
859 static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
862 struct qeth_hdr *hdr = NULL;
864 struct qeth_card *card = dev->ml_priv;
865 struct sk_buff *new_skb = skb;
866 int cast_type = qeth_l2_get_cast_type(card, skb);
867 struct qeth_qdio_out_q *queue;
868 int tx_bytes = skb->len;
869 int data_offset = -1;
870 int elements_needed = 0;
873 if (card->qdio.do_prio_queueing || (cast_type &&
874 card->info.is_multicast_different))
875 queue = card->qdio.out_qs[qeth_get_priority_queue(card, skb,
876 qeth_get_ip_version(skb), cast_type)];
878 queue = card->qdio.out_qs[card->qdio.default_out_queue];
880 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
881 card->stats.tx_carrier_errors++;
885 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
886 (skb->protocol == htons(ETH_P_IPV6)))
889 if (card->options.performance_stats) {
890 card->perf_stats.outbound_cnt++;
891 card->perf_stats.outbound_start_time = qeth_get_micros();
893 netif_stop_queue(dev);
895 if (card->info.type == QETH_CARD_TYPE_OSN)
896 hdr = (struct qeth_hdr *)skb->data;
898 if (card->info.type == QETH_CARD_TYPE_IQD) {
900 data_offset = ETH_HLEN;
902 hdr = kmem_cache_alloc(qeth_core_header_cache,
907 skb_reset_mac_header(new_skb);
908 qeth_l2_fill_header(card, hdr, new_skb, cast_type);
909 hdr->hdr.l2.pkt_length = new_skb->len;
910 memcpy(((char *)hdr) + sizeof(struct qeth_hdr),
911 skb_mac_header(new_skb), ETH_HLEN);
913 /* create a clone with writeable headroom */
914 new_skb = skb_realloc_headroom(skb,
915 sizeof(struct qeth_hdr));
918 hdr = (struct qeth_hdr *)skb_push(new_skb,
919 sizeof(struct qeth_hdr));
920 skb_set_mac_header(new_skb, sizeof(struct qeth_hdr));
921 qeth_l2_fill_header(card, hdr, new_skb, cast_type);
922 if (new_skb->ip_summed == CHECKSUM_PARTIAL)
923 qeth_l2_hdr_csum(card, hdr, new_skb);
927 elements = qeth_get_elements_no(card, new_skb, elements_needed);
929 if (data_offset >= 0)
930 kmem_cache_free(qeth_core_header_cache, hdr);
934 if (card->info.type != QETH_CARD_TYPE_IQD) {
935 if (qeth_hdr_chk_and_bounce(new_skb, &hdr,
936 sizeof(struct qeth_hdr_layer2)))
938 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
941 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
942 elements, data_offset, hd_len);
944 card->stats.tx_packets++;
945 card->stats.tx_bytes += tx_bytes;
947 dev_kfree_skb_any(skb);
950 if (data_offset >= 0)
951 kmem_cache_free(qeth_core_header_cache, hdr);
955 dev_kfree_skb_any(new_skb);
956 return NETDEV_TX_BUSY;
961 netif_wake_queue(dev);
962 if (card->options.performance_stats)
963 card->perf_stats.outbound_time += qeth_get_micros() -
964 card->perf_stats.outbound_start_time;
968 card->stats.tx_dropped++;
969 card->stats.tx_errors++;
970 if ((new_skb != skb) && new_skb)
971 dev_kfree_skb_any(new_skb);
972 dev_kfree_skb_any(skb);
973 netif_wake_queue(dev);
977 static int __qeth_l2_open(struct net_device *dev)
979 struct qeth_card *card = dev->ml_priv;
982 QETH_CARD_TEXT(card, 4, "qethopen");
983 if (card->state == CARD_STATE_UP)
985 if (card->state != CARD_STATE_SOFTSETUP)
988 if ((card->info.type != QETH_CARD_TYPE_OSN) &&
989 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
990 QETH_CARD_TEXT(card, 4, "nomacadr");
993 card->data.state = CH_STATE_UP;
994 card->state = CARD_STATE_UP;
995 netif_start_queue(dev);
997 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
998 napi_enable(&card->napi);
999 napi_schedule(&card->napi);
1005 static int qeth_l2_open(struct net_device *dev)
1007 struct qeth_card *card = dev->ml_priv;
1009 QETH_CARD_TEXT(card, 5, "qethope_");
1010 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
1011 QETH_CARD_TEXT(card, 3, "openREC");
1012 return -ERESTARTSYS;
1014 return __qeth_l2_open(dev);
1017 static int qeth_l2_stop(struct net_device *dev)
1019 struct qeth_card *card = dev->ml_priv;
1021 QETH_CARD_TEXT(card, 4, "qethstop");
1022 netif_tx_disable(dev);
1023 if (card->state == CARD_STATE_UP) {
1024 card->state = CARD_STATE_SOFTSETUP;
1025 napi_disable(&card->napi);
1030 static const struct device_type qeth_l2_devtype = {
1031 .name = "qeth_layer2",
1032 .groups = qeth_l2_attr_groups,
1035 static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
1037 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1040 if (gdev->dev.type == &qeth_generic_devtype) {
1041 rc = qeth_l2_create_device_attributes(&gdev->dev);
1045 INIT_LIST_HEAD(&card->vid_list);
1046 hash_init(card->mac_htable);
1047 card->options.layer2 = 1;
1048 card->info.hwtrap = 0;
1052 static void qeth_l2_remove_device(struct ccwgroup_device *cgdev)
1054 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
1056 if (cgdev->dev.type == &qeth_generic_devtype)
1057 qeth_l2_remove_device_attributes(&cgdev->dev);
1058 qeth_set_allowed_threads(card, 0, 1);
1059 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
1061 if (cgdev->state == CCWGROUP_ONLINE)
1062 qeth_l2_set_offline(cgdev);
1065 netif_napi_del(&card->napi);
1066 unregister_netdev(card->dev);
1072 static const struct ethtool_ops qeth_l2_ethtool_ops = {
1073 .get_link = ethtool_op_get_link,
1074 .get_strings = qeth_core_get_strings,
1075 .get_ethtool_stats = qeth_core_get_ethtool_stats,
1076 .get_sset_count = qeth_core_get_sset_count,
1077 .get_drvinfo = qeth_core_get_drvinfo,
1078 .get_settings = qeth_core_ethtool_get_settings,
1081 static const struct ethtool_ops qeth_l2_osn_ops = {
1082 .get_strings = qeth_core_get_strings,
1083 .get_ethtool_stats = qeth_core_get_ethtool_stats,
1084 .get_sset_count = qeth_core_get_sset_count,
1085 .get_drvinfo = qeth_core_get_drvinfo,
1088 static const struct net_device_ops qeth_l2_netdev_ops = {
1089 .ndo_open = qeth_l2_open,
1090 .ndo_stop = qeth_l2_stop,
1091 .ndo_get_stats = qeth_get_stats,
1092 .ndo_start_xmit = qeth_l2_hard_start_xmit,
1093 .ndo_validate_addr = eth_validate_addr,
1094 .ndo_set_rx_mode = qeth_l2_set_rx_mode,
1095 .ndo_do_ioctl = qeth_l2_do_ioctl,
1096 .ndo_set_mac_address = qeth_l2_set_mac_address,
1097 .ndo_change_mtu = qeth_change_mtu,
1098 .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid,
1099 .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid,
1100 .ndo_tx_timeout = qeth_tx_timeout,
1101 .ndo_fix_features = qeth_l2_fix_features,
1102 .ndo_set_features = qeth_l2_set_features
1105 static int qeth_l2_setup_netdev(struct qeth_card *card)
1107 switch (card->info.type) {
1108 case QETH_CARD_TYPE_IQD:
1109 card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN,
1112 case QETH_CARD_TYPE_OSN:
1113 card->dev = alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN,
1117 card->dev = alloc_etherdev(0);
1123 card->dev->ml_priv = card;
1124 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
1125 card->dev->mtu = card->info.initial_mtu;
1126 card->dev->netdev_ops = &qeth_l2_netdev_ops;
1127 if (card->info.type == QETH_CARD_TYPE_OSN) {
1128 card->dev->ethtool_ops = &qeth_l2_osn_ops;
1129 card->dev->flags |= IFF_NOARP;
1131 card->dev->ethtool_ops = &qeth_l2_ethtool_ops;
1133 card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
1134 if (card->info.type == QETH_CARD_TYPE_OSD && !card->info.guestlan) {
1135 card->dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM;
1136 /* Turn on RX offloading per default */
1137 card->dev->features |= NETIF_F_RXCSUM;
1139 card->info.broadcast_capable = 1;
1140 qeth_l2_request_initial_mac(card);
1141 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
1142 netif_napi_add(card->dev, &card->napi, qeth_l2_poll, QETH_NAPI_WEIGHT);
1143 netif_carrier_off(card->dev);
1144 return register_netdev(card->dev);
1147 static int qeth_l2_start_ipassists(struct qeth_card *card)
1149 /* configure isolation level */
1150 if (qeth_set_access_ctrl_online(card, 0))
1152 if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
1153 qeth_set_rx_csum(card, 1);
1154 qeth_start_ipa_tx_checksum(card);
1158 static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
1160 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1162 enum qeth_card_states recover_flag;
1164 mutex_lock(&card->discipline_mutex);
1165 mutex_lock(&card->conf_mutex);
1166 QETH_DBF_TEXT(SETUP, 2, "setonlin");
1167 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1169 recover_flag = card->state;
1170 rc = qeth_core_hardsetup_card(card);
1172 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
1176 qeth_bridgeport_query_support(card);
1177 if (card->options.sbp.supported_funcs)
1178 dev_info(&card->gdev->dev,
1179 "The device represents a Bridge Capable Port\n");
1180 qeth_trace_features(card);
1182 if (!card->dev && qeth_l2_setup_netdev(card)) {
1187 if (card->info.type != QETH_CARD_TYPE_OSN)
1188 qeth_l2_send_setmac(card, &card->dev->dev_addr[0]);
1190 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
1191 if (card->info.hwtrap &&
1192 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
1193 card->info.hwtrap = 0;
1195 card->info.hwtrap = 0;
1197 qeth_l2_setup_bridgeport_attrs(card);
1199 card->state = CARD_STATE_HARDSETUP;
1200 memset(&card->rx, 0, sizeof(struct qeth_rx));
1201 qeth_print_status_message(card);
1204 QETH_DBF_TEXT(SETUP, 2, "softsetp");
1206 rc = qeth_send_startlan(card);
1208 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
1210 dev_warn(&card->gdev->dev,
1211 "The LAN is offline\n");
1212 card->lan_online = 0;
1218 card->lan_online = 1;
1221 if ((card->info.type == QETH_CARD_TYPE_OSD) ||
1222 (card->info.type == QETH_CARD_TYPE_OSX)) {
1223 if (qeth_l2_start_ipassists(card))
1227 if (card->info.type != QETH_CARD_TYPE_OSN &&
1228 card->info.type != QETH_CARD_TYPE_OSM)
1229 qeth_l2_process_vlans(card);
1231 netif_tx_disable(card->dev);
1233 rc = qeth_init_qdio_queues(card);
1235 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
1239 card->state = CARD_STATE_SOFTSETUP;
1240 if (card->lan_online)
1241 netif_carrier_on(card->dev);
1243 netif_carrier_off(card->dev);
1245 qeth_set_allowed_threads(card, 0xffffffff, 0);
1246 if (recover_flag == CARD_STATE_RECOVER) {
1247 if (recovery_mode &&
1248 card->info.type != QETH_CARD_TYPE_OSN) {
1249 __qeth_l2_open(card->dev);
1252 dev_open(card->dev);
1255 /* this also sets saved unicast addresses */
1256 qeth_l2_set_rx_mode(card->dev);
1258 /* let user_space know that device is online */
1259 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
1260 mutex_unlock(&card->conf_mutex);
1261 mutex_unlock(&card->discipline_mutex);
1265 qeth_l2_stop_card(card, 0);
1266 ccw_device_set_offline(CARD_DDEV(card));
1267 ccw_device_set_offline(CARD_WDEV(card));
1268 ccw_device_set_offline(CARD_RDEV(card));
1269 qdio_free(CARD_DDEV(card));
1270 if (recover_flag == CARD_STATE_RECOVER)
1271 card->state = CARD_STATE_RECOVER;
1273 card->state = CARD_STATE_DOWN;
1274 mutex_unlock(&card->conf_mutex);
1275 mutex_unlock(&card->discipline_mutex);
1279 static int qeth_l2_set_online(struct ccwgroup_device *gdev)
1281 return __qeth_l2_set_online(gdev, 0);
1284 static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev,
1287 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
1288 int rc = 0, rc2 = 0, rc3 = 0;
1289 enum qeth_card_states recover_flag;
1291 mutex_lock(&card->discipline_mutex);
1292 mutex_lock(&card->conf_mutex);
1293 QETH_DBF_TEXT(SETUP, 3, "setoffl");
1294 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
1296 if (card->dev && netif_carrier_ok(card->dev))
1297 netif_carrier_off(card->dev);
1298 recover_flag = card->state;
1299 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
1300 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1301 card->info.hwtrap = 1;
1303 qeth_l2_stop_card(card, recovery_mode);
1304 rc = ccw_device_set_offline(CARD_DDEV(card));
1305 rc2 = ccw_device_set_offline(CARD_WDEV(card));
1306 rc3 = ccw_device_set_offline(CARD_RDEV(card));
1308 rc = (rc2) ? rc2 : rc3;
1310 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
1311 qdio_free(CARD_DDEV(card));
1312 if (recover_flag == CARD_STATE_UP)
1313 card->state = CARD_STATE_RECOVER;
1314 /* let user_space know that device is offline */
1315 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
1316 mutex_unlock(&card->conf_mutex);
1317 mutex_unlock(&card->discipline_mutex);
1321 static int qeth_l2_set_offline(struct ccwgroup_device *cgdev)
1323 return __qeth_l2_set_offline(cgdev, 0);
1326 static int qeth_l2_recover(void *ptr)
1328 struct qeth_card *card;
1331 card = (struct qeth_card *) ptr;
1332 QETH_CARD_TEXT(card, 2, "recover1");
1333 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
1335 QETH_CARD_TEXT(card, 2, "recover2");
1336 dev_warn(&card->gdev->dev,
1337 "A recovery process has been started for the device\n");
1338 qeth_set_recovery_task(card);
1339 __qeth_l2_set_offline(card->gdev, 1);
1340 rc = __qeth_l2_set_online(card->gdev, 1);
1342 dev_info(&card->gdev->dev,
1343 "Device successfully recovered!\n");
1345 qeth_close_dev(card);
1346 dev_warn(&card->gdev->dev, "The qeth device driver "
1347 "failed to recover an error on the device\n");
1349 qeth_clear_recovery_task(card);
1350 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1351 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
1355 static int __init qeth_l2_init(void)
1357 pr_info("register layer 2 discipline\n");
1361 static void __exit qeth_l2_exit(void)
1363 pr_info("unregister layer 2 discipline\n");
1366 static void qeth_l2_shutdown(struct ccwgroup_device *gdev)
1368 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1369 qeth_set_allowed_threads(card, 0, 1);
1370 if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)
1371 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1372 qeth_qdio_clear_card(card, 0);
1373 qeth_clear_qdio_buffers(card);
1374 qdio_free(CARD_DDEV(card));
1377 static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev)
1379 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1382 netif_device_detach(card->dev);
1383 qeth_set_allowed_threads(card, 0, 1);
1384 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
1385 if (gdev->state == CCWGROUP_OFFLINE)
1387 if (card->state == CARD_STATE_UP) {
1388 if (card->info.hwtrap)
1389 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1390 __qeth_l2_set_offline(card->gdev, 1);
1392 __qeth_l2_set_offline(card->gdev, 0);
1396 static int qeth_l2_pm_resume(struct ccwgroup_device *gdev)
1398 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1401 if (gdev->state == CCWGROUP_OFFLINE)
1404 if (card->state == CARD_STATE_RECOVER) {
1405 rc = __qeth_l2_set_online(card->gdev, 1);
1408 dev_close(card->dev);
1412 rc = __qeth_l2_set_online(card->gdev, 0);
1414 qeth_set_allowed_threads(card, 0xffffffff, 0);
1416 netif_device_attach(card->dev);
1418 dev_warn(&card->gdev->dev, "The qeth device driver "
1419 "failed to recover an error on the device\n");
1423 /* Returns zero if the command is successfully "consumed" */
1424 static int qeth_l2_control_event(struct qeth_card *card,
1425 struct qeth_ipa_cmd *cmd)
1427 switch (cmd->hdr.command) {
1428 case IPA_CMD_SETBRIDGEPORT_OSA:
1429 case IPA_CMD_SETBRIDGEPORT_IQD:
1430 if (cmd->data.sbp.hdr.command_code ==
1431 IPA_SBP_BRIDGE_PORT_STATE_CHANGE) {
1432 qeth_bridge_state_change(card, cmd);
1436 case IPA_CMD_ADDRESS_CHANGE_NOTIF:
1437 qeth_bridge_host_event(card, cmd);
1444 struct qeth_discipline qeth_l2_discipline = {
1445 .devtype = &qeth_l2_devtype,
1446 .start_poll = qeth_qdio_start_poll,
1447 .input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
1448 .output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
1449 .recover = qeth_l2_recover,
1450 .setup = qeth_l2_probe_device,
1451 .remove = qeth_l2_remove_device,
1452 .set_online = qeth_l2_set_online,
1453 .set_offline = qeth_l2_set_offline,
1454 .shutdown = qeth_l2_shutdown,
1455 .freeze = qeth_l2_pm_suspend,
1456 .thaw = qeth_l2_pm_resume,
1457 .restore = qeth_l2_pm_resume,
1458 .control_event_handler = qeth_l2_control_event,
1460 EXPORT_SYMBOL_GPL(qeth_l2_discipline);
1462 static int qeth_osn_send_control_data(struct qeth_card *card, int len,
1463 struct qeth_cmd_buffer *iob)
1465 unsigned long flags;
1468 QETH_CARD_TEXT(card, 5, "osndctrd");
1470 wait_event(card->wait_q,
1471 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1472 qeth_prepare_control_data(card, len, iob);
1473 QETH_CARD_TEXT(card, 6, "osnoirqp");
1474 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1475 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1476 (addr_t) iob, 0, 0);
1477 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1479 QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: "
1480 "ccw_device_start rc = %i\n", rc);
1481 QETH_CARD_TEXT_(card, 2, " err%d", rc);
1482 qeth_release_buffer(iob->channel, iob);
1483 atomic_set(&card->write.irq_pending, 0);
1484 wake_up(&card->wait_q);
1489 static int qeth_osn_send_ipa_cmd(struct qeth_card *card,
1490 struct qeth_cmd_buffer *iob, int data_len)
1494 QETH_CARD_TEXT(card, 4, "osndipa");
1496 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1497 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1499 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1500 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1501 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1502 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1503 return qeth_osn_send_control_data(card, s1, iob);
1506 int qeth_osn_assist(struct net_device *dev, void *data, int data_len)
1508 struct qeth_cmd_buffer *iob;
1509 struct qeth_card *card;
1514 card = dev->ml_priv;
1517 QETH_CARD_TEXT(card, 2, "osnsdmc");
1518 if (!qeth_card_hw_is_reachable(card))
1520 iob = qeth_wait_for_buffer(&card->write);
1521 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
1522 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
1525 EXPORT_SYMBOL(qeth_osn_assist);
1527 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev,
1528 int (*assist_cb)(struct net_device *, void *),
1529 int (*data_cb)(struct sk_buff *))
1531 struct qeth_card *card;
1533 *dev = qeth_l2_netdev_by_devno(read_dev_no);
1536 card = (*dev)->ml_priv;
1539 QETH_CARD_TEXT(card, 2, "osnreg");
1540 if ((assist_cb == NULL) || (data_cb == NULL))
1542 card->osn_info.assist_cb = assist_cb;
1543 card->osn_info.data_cb = data_cb;
1546 EXPORT_SYMBOL(qeth_osn_register);
1548 void qeth_osn_deregister(struct net_device *dev)
1550 struct qeth_card *card;
1554 card = dev->ml_priv;
1557 QETH_CARD_TEXT(card, 2, "osndereg");
1558 card->osn_info.assist_cb = NULL;
1559 card->osn_info.data_cb = NULL;
1562 EXPORT_SYMBOL(qeth_osn_deregister);
1564 /* SETBRIDGEPORT support, async notifications */
1566 enum qeth_an_event_type {anev_reg_unreg, anev_abort, anev_reset};
1569 * qeth_bridge_emit_host_event() - bridgeport address change notification
1570 * @card: qeth_card structure pointer, for udev events.
1571 * @evtype: "normal" register/unregister, or abort, or reset. For abort
1572 * and reset token and addr_lnid are unused and may be NULL.
1573 * @code: event bitmask: high order bit 0x80 value 1 means removal of an
1574 * object, 0 - addition of an object.
1575 * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC.
1576 * @token: "network token" structure identifying physical address of the port.
1577 * @addr_lnid: pointer to structure with MAC address and VLAN ID.
1579 * This function is called when registrations and deregistrations are
1580 * reported by the hardware, and also when notifications are enabled -
1581 * for all currently registered addresses.
1583 static void qeth_bridge_emit_host_event(struct qeth_card *card,
1584 enum qeth_an_event_type evtype,
1585 u8 code, struct net_if_token *token, struct mac_addr_lnid *addr_lnid)
1592 case anev_reg_unreg:
1593 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=%s",
1594 (code & IPA_ADDR_CHANGE_CODE_REMOVAL)
1595 ? "deregister" : "register");
1596 env[i] = str[i]; i++;
1597 if (code & IPA_ADDR_CHANGE_CODE_VLANID) {
1598 snprintf(str[i], sizeof(str[i]), "VLAN=%d",
1600 env[i] = str[i]; i++;
1602 if (code & IPA_ADDR_CHANGE_CODE_MACADDR) {
1603 snprintf(str[i], sizeof(str[i]), "MAC=%pM",
1605 env[i] = str[i]; i++;
1607 snprintf(str[i], sizeof(str[i]), "NTOK_BUSID=%x.%x.%04x",
1608 token->cssid, token->ssid, token->devnum);
1609 env[i] = str[i]; i++;
1610 snprintf(str[i], sizeof(str[i]), "NTOK_IID=%02x", token->iid);
1611 env[i] = str[i]; i++;
1612 snprintf(str[i], sizeof(str[i]), "NTOK_CHPID=%02x",
1614 env[i] = str[i]; i++;
1615 snprintf(str[i], sizeof(str[i]), "NTOK_CHID=%04x", token->chid);
1616 env[i] = str[i]; i++;
1619 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=abort");
1620 env[i] = str[i]; i++;
1623 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=reset");
1624 env[i] = str[i]; i++;
1628 kobject_uevent_env(&card->gdev->dev.kobj, KOBJ_CHANGE, env);
1631 struct qeth_bridge_state_data {
1632 struct work_struct worker;
1633 struct qeth_card *card;
1634 struct qeth_sbp_state_change qports;
1637 static void qeth_bridge_state_change_worker(struct work_struct *work)
1639 struct qeth_bridge_state_data *data =
1640 container_of(work, struct qeth_bridge_state_data, worker);
1641 /* We are only interested in the first entry - local port */
1642 struct qeth_sbp_port_entry *entry = &data->qports.entry[0];
1643 char env_locrem[32];
1653 /* Role should not change by itself, but if it did, */
1654 /* information from the hardware is authoritative. */
1655 mutex_lock(&data->card->conf_mutex);
1656 data->card->options.sbp.role = entry->role;
1657 mutex_unlock(&data->card->conf_mutex);
1659 snprintf(env_locrem, sizeof(env_locrem), "BRIDGEPORT=statechange");
1660 snprintf(env_role, sizeof(env_role), "ROLE=%s",
1661 (entry->role == QETH_SBP_ROLE_NONE) ? "none" :
1662 (entry->role == QETH_SBP_ROLE_PRIMARY) ? "primary" :
1663 (entry->role == QETH_SBP_ROLE_SECONDARY) ? "secondary" :
1665 snprintf(env_state, sizeof(env_state), "STATE=%s",
1666 (entry->state == QETH_SBP_STATE_INACTIVE) ? "inactive" :
1667 (entry->state == QETH_SBP_STATE_STANDBY) ? "standby" :
1668 (entry->state == QETH_SBP_STATE_ACTIVE) ? "active" :
1670 kobject_uevent_env(&data->card->gdev->dev.kobj,
1675 static void qeth_bridge_state_change(struct qeth_card *card,
1676 struct qeth_ipa_cmd *cmd)
1678 struct qeth_sbp_state_change *qports =
1679 &cmd->data.sbp.data.state_change;
1680 struct qeth_bridge_state_data *data;
1683 QETH_CARD_TEXT(card, 2, "brstchng");
1684 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
1685 QETH_CARD_TEXT_(card, 2, "BPsz%04x", qports->entry_length);
1688 extrasize = sizeof(struct qeth_sbp_port_entry) * qports->num_entries;
1689 data = kzalloc(sizeof(struct qeth_bridge_state_data) + extrasize,
1692 QETH_CARD_TEXT(card, 2, "BPSalloc");
1695 INIT_WORK(&data->worker, qeth_bridge_state_change_worker);
1697 memcpy(&data->qports, qports,
1698 sizeof(struct qeth_sbp_state_change) + extrasize);
1699 queue_work(qeth_wq, &data->worker);
1702 struct qeth_bridge_host_data {
1703 struct work_struct worker;
1704 struct qeth_card *card;
1705 struct qeth_ipacmd_addr_change hostevs;
1708 static void qeth_bridge_host_event_worker(struct work_struct *work)
1710 struct qeth_bridge_host_data *data =
1711 container_of(work, struct qeth_bridge_host_data, worker);
1714 if (data->hostevs.lost_event_mask) {
1715 dev_info(&data->card->gdev->dev,
1716 "Address notification from the Bridge Port stopped %s (%s)\n",
1717 data->card->dev->name,
1718 (data->hostevs.lost_event_mask == 0x01)
1720 : (data->hostevs.lost_event_mask == 0x02)
1721 ? "Bridge port state change"
1722 : "Unknown reason");
1723 mutex_lock(&data->card->conf_mutex);
1724 data->card->options.sbp.hostnotification = 0;
1725 mutex_unlock(&data->card->conf_mutex);
1726 qeth_bridge_emit_host_event(data->card, anev_abort,
1729 for (i = 0; i < data->hostevs.num_entries; i++) {
1730 struct qeth_ipacmd_addr_change_entry *entry =
1731 &data->hostevs.entry[i];
1732 qeth_bridge_emit_host_event(data->card,
1735 &entry->token, &entry->addr_lnid);
1740 static void qeth_bridge_host_event(struct qeth_card *card,
1741 struct qeth_ipa_cmd *cmd)
1743 struct qeth_ipacmd_addr_change *hostevs =
1744 &cmd->data.addrchange;
1745 struct qeth_bridge_host_data *data;
1748 QETH_CARD_TEXT(card, 2, "brhostev");
1749 if (cmd->hdr.return_code != 0x0000) {
1750 if (cmd->hdr.return_code == 0x0010) {
1751 if (hostevs->lost_event_mask == 0x00)
1752 hostevs->lost_event_mask = 0xff;
1754 QETH_CARD_TEXT_(card, 2, "BPHe%04x",
1755 cmd->hdr.return_code);
1759 extrasize = sizeof(struct qeth_ipacmd_addr_change_entry) *
1760 hostevs->num_entries;
1761 data = kzalloc(sizeof(struct qeth_bridge_host_data) + extrasize,
1764 QETH_CARD_TEXT(card, 2, "BPHalloc");
1767 INIT_WORK(&data->worker, qeth_bridge_host_event_worker);
1769 memcpy(&data->hostevs, hostevs,
1770 sizeof(struct qeth_ipacmd_addr_change) + extrasize);
1771 queue_work(qeth_wq, &data->worker);
1774 /* SETBRIDGEPORT support; sending commands */
1776 struct _qeth_sbp_cbctl {
1782 enum qeth_sbp_roles *role;
1783 enum qeth_sbp_states *state;
1789 * qeth_bridgeport_makerc() - derive "traditional" error from hardware codes.
1790 * @card: qeth_card structure pointer, for debug messages.
1791 * @cbctl: state structure with hardware return codes.
1792 * @setcmd: IPA command code
1794 * Returns negative errno-compatible error indication or 0 on success.
1796 static int qeth_bridgeport_makerc(struct qeth_card *card,
1797 struct _qeth_sbp_cbctl *cbctl, enum qeth_ipa_sbp_cmd setcmd)
1800 int is_iqd = (card->info.type == QETH_CARD_TYPE_IQD);
1802 if ((is_iqd && (cbctl->ipa_rc == IPA_RC_SUCCESS)) ||
1803 (!is_iqd && (cbctl->ipa_rc == cbctl->cmd_rc)))
1804 switch (cbctl->cmd_rc) {
1813 case 0x000C: /* Not configured as bridge Port */
1814 rc = -ENODEV; /* maybe not the best code here? */
1815 dev_err(&card->gdev->dev,
1816 "The device is not configured as a Bridge Port\n");
1819 case 0x0014: /* Another device is Primary */
1821 case IPA_SBP_SET_PRIMARY_BRIDGE_PORT:
1823 dev_err(&card->gdev->dev,
1824 "The LAN already has a primary Bridge Port\n");
1826 case IPA_SBP_SET_SECONDARY_BRIDGE_PORT:
1828 dev_err(&card->gdev->dev,
1829 "The device is already a primary Bridge Port\n");
1836 case 0x0018: /* This device is currently Secondary */
1838 dev_err(&card->gdev->dev,
1839 "The device is already a secondary Bridge Port\n");
1842 case 0x001C: /* Limit for Secondary devices reached */
1844 dev_err(&card->gdev->dev,
1845 "The LAN cannot have more secondary Bridge Ports\n");
1848 case 0x0024: /* This device is currently Primary */
1850 dev_err(&card->gdev->dev,
1851 "The device is already a primary Bridge Port\n");
1854 case 0x0020: /* Not authorized by zManager */
1856 dev_err(&card->gdev->dev,
1857 "The device is not authorized to be a Bridge Port\n");
1863 switch (cbctl->ipa_rc) {
1864 case IPA_RC_NOTSUPP:
1867 case IPA_RC_UNSUPPORTED_COMMAND:
1875 QETH_CARD_TEXT_(card, 2, "SBPi%04x", cbctl->ipa_rc);
1876 QETH_CARD_TEXT_(card, 2, "SBPc%04x", cbctl->cmd_rc);
1881 static inline int ipa_cmd_sbp(struct qeth_card *card)
1883 return (card->info.type == QETH_CARD_TYPE_IQD) ?
1884 IPA_CMD_SETBRIDGEPORT_IQD :
1885 IPA_CMD_SETBRIDGEPORT_OSA;
1888 static int qeth_bridgeport_query_support_cb(struct qeth_card *card,
1889 struct qeth_reply *reply, unsigned long data)
1891 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1892 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1893 QETH_CARD_TEXT(card, 2, "brqsupcb");
1894 cbctl->ipa_rc = cmd->hdr.return_code;
1895 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1896 if ((cbctl->ipa_rc == 0) && (cbctl->cmd_rc == 0)) {
1897 cbctl->data.supported =
1898 cmd->data.sbp.data.query_cmds_supp.supported_cmds;
1900 cbctl->data.supported = 0;
1906 * qeth_bridgeport_query_support() - store bitmask of supported subfunctions.
1907 * @card: qeth_card structure pointer.
1909 * Sets bitmask of supported setbridgeport subfunctions in the qeth_card
1910 * strucutre: card->options.sbp.supported_funcs.
1912 static void qeth_bridgeport_query_support(struct qeth_card *card)
1914 struct qeth_cmd_buffer *iob;
1915 struct qeth_ipa_cmd *cmd;
1916 struct _qeth_sbp_cbctl cbctl;
1918 QETH_CARD_TEXT(card, 2, "brqsuppo");
1919 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
1922 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1923 cmd->data.sbp.hdr.cmdlength =
1924 sizeof(struct qeth_ipacmd_sbp_hdr) +
1925 sizeof(struct qeth_sbp_query_cmds_supp);
1926 cmd->data.sbp.hdr.command_code =
1927 IPA_SBP_QUERY_COMMANDS_SUPPORTED;
1928 cmd->data.sbp.hdr.used_total = 1;
1929 cmd->data.sbp.hdr.seq_no = 1;
1930 if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb,
1932 qeth_bridgeport_makerc(card, &cbctl,
1933 IPA_SBP_QUERY_COMMANDS_SUPPORTED)) {
1934 /* non-zero makerc signifies failure, and produce messages */
1935 card->options.sbp.role = QETH_SBP_ROLE_NONE;
1938 card->options.sbp.supported_funcs = cbctl.data.supported;
1941 static int qeth_bridgeport_query_ports_cb(struct qeth_card *card,
1942 struct qeth_reply *reply, unsigned long data)
1944 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1945 struct qeth_sbp_query_ports *qports = &cmd->data.sbp.data.query_ports;
1946 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1948 QETH_CARD_TEXT(card, 2, "brqprtcb");
1949 cbctl->ipa_rc = cmd->hdr.return_code;
1950 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1951 if ((cbctl->ipa_rc != 0) || (cbctl->cmd_rc != 0))
1953 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
1954 cbctl->cmd_rc = 0xffff;
1955 QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length);
1958 /* first entry contains the state of the local port */
1959 if (qports->num_entries > 0) {
1960 if (cbctl->data.qports.role)
1961 *cbctl->data.qports.role = qports->entry[0].role;
1962 if (cbctl->data.qports.state)
1963 *cbctl->data.qports.state = qports->entry[0].state;
1969 * qeth_bridgeport_query_ports() - query local bridgeport status.
1970 * @card: qeth_card structure pointer.
1971 * @role: Role of the port: 0-none, 1-primary, 2-secondary.
1972 * @state: State of the port: 0-inactive, 1-standby, 2-active.
1974 * Returns negative errno-compatible error indication or 0 on success.
1976 * 'role' and 'state' are not updated in case of hardware operation failure.
1978 int qeth_bridgeport_query_ports(struct qeth_card *card,
1979 enum qeth_sbp_roles *role, enum qeth_sbp_states *state)
1982 struct qeth_cmd_buffer *iob;
1983 struct qeth_ipa_cmd *cmd;
1984 struct _qeth_sbp_cbctl cbctl = {
1993 QETH_CARD_TEXT(card, 2, "brqports");
1994 if (!(card->options.sbp.supported_funcs & IPA_SBP_QUERY_BRIDGE_PORTS))
1996 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
1999 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2000 cmd->data.sbp.hdr.cmdlength =
2001 sizeof(struct qeth_ipacmd_sbp_hdr);
2002 cmd->data.sbp.hdr.command_code =
2003 IPA_SBP_QUERY_BRIDGE_PORTS;
2004 cmd->data.sbp.hdr.used_total = 1;
2005 cmd->data.sbp.hdr.seq_no = 1;
2006 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb,
2010 return qeth_bridgeport_makerc(card, &cbctl, IPA_SBP_QUERY_BRIDGE_PORTS);
2012 EXPORT_SYMBOL_GPL(qeth_bridgeport_query_ports);
2014 static int qeth_bridgeport_set_cb(struct qeth_card *card,
2015 struct qeth_reply *reply, unsigned long data)
2017 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data;
2018 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
2019 QETH_CARD_TEXT(card, 2, "brsetrcb");
2020 cbctl->ipa_rc = cmd->hdr.return_code;
2021 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
2026 * qeth_bridgeport_setrole() - Assign primary role to the port.
2027 * @card: qeth_card structure pointer.
2028 * @role: Role to assign.
2030 * Returns negative errno-compatible error indication or 0 on success.
2032 int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role)
2036 struct qeth_cmd_buffer *iob;
2037 struct qeth_ipa_cmd *cmd;
2038 struct _qeth_sbp_cbctl cbctl;
2039 enum qeth_ipa_sbp_cmd setcmd;
2041 QETH_CARD_TEXT(card, 2, "brsetrol");
2043 case QETH_SBP_ROLE_NONE:
2044 setcmd = IPA_SBP_RESET_BRIDGE_PORT_ROLE;
2045 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
2046 sizeof(struct qeth_sbp_reset_role);
2048 case QETH_SBP_ROLE_PRIMARY:
2049 setcmd = IPA_SBP_SET_PRIMARY_BRIDGE_PORT;
2050 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
2051 sizeof(struct qeth_sbp_set_primary);
2053 case QETH_SBP_ROLE_SECONDARY:
2054 setcmd = IPA_SBP_SET_SECONDARY_BRIDGE_PORT;
2055 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
2056 sizeof(struct qeth_sbp_set_secondary);
2061 if (!(card->options.sbp.supported_funcs & setcmd))
2063 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
2066 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2067 cmd->data.sbp.hdr.cmdlength = cmdlength;
2068 cmd->data.sbp.hdr.command_code = setcmd;
2069 cmd->data.sbp.hdr.used_total = 1;
2070 cmd->data.sbp.hdr.seq_no = 1;
2071 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb,
2075 return qeth_bridgeport_makerc(card, &cbctl, setcmd);
2079 * qeth_anset_makerc() - derive "traditional" error from hardware codes.
2080 * @card: qeth_card structure pointer, for debug messages.
2082 * Returns negative errno-compatible error indication or 0 on success.
2084 static int qeth_anset_makerc(struct qeth_card *card, int pnso_rc, u16 response)
2097 dev_err(&card->gdev->dev,
2098 "Setting address notification failed\n");
2110 QETH_CARD_TEXT_(card, 2, "SBPp%04x", pnso_rc);
2111 QETH_CARD_TEXT_(card, 2, "SBPr%04x", response);
2116 static void qeth_bridgeport_an_set_cb(void *priv,
2117 enum qdio_brinfo_entry_type type, void *entry)
2119 struct qeth_card *card = (struct qeth_card *)priv;
2120 struct qdio_brinfo_entry_l2 *l2entry;
2123 if (type != l2_addr_lnid) {
2128 l2entry = (struct qdio_brinfo_entry_l2 *)entry;
2129 code = IPA_ADDR_CHANGE_CODE_MACADDR;
2130 if (l2entry->addr_lnid.lnid)
2131 code |= IPA_ADDR_CHANGE_CODE_VLANID;
2132 qeth_bridge_emit_host_event(card, anev_reg_unreg, code,
2133 (struct net_if_token *)&l2entry->nit,
2134 (struct mac_addr_lnid *)&l2entry->addr_lnid);
2138 * qeth_bridgeport_an_set() - Enable or disable bridgeport address notification
2139 * @card: qeth_card structure pointer.
2140 * @enable: 0 - disable, non-zero - enable notifications
2142 * Returns negative errno-compatible error indication or 0 on success.
2144 * On enable, emits a series of address notifications udev events for all
2145 * currently registered hosts.
2147 int qeth_bridgeport_an_set(struct qeth_card *card, int enable)
2151 struct ccw_device *ddev;
2152 struct subchannel_id schid;
2156 if (!card->options.sbp.supported_funcs)
2158 ddev = CARD_DDEV(card);
2159 ccw_device_get_schid(ddev, &schid);
2162 qeth_bridge_emit_host_event(card, anev_reset, 0, NULL, NULL);
2163 rc = qdio_pnso_brinfo(schid, 1, &response,
2164 qeth_bridgeport_an_set_cb, card);
2166 rc = qdio_pnso_brinfo(schid, 0, &response, NULL, NULL);
2167 return qeth_anset_makerc(card, rc, response);
2169 EXPORT_SYMBOL_GPL(qeth_bridgeport_an_set);
2171 module_init(qeth_l2_init);
2172 module_exit(qeth_l2_exit);
2173 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
2174 MODULE_DESCRIPTION("qeth layer 2 discipline");
2175 MODULE_LICENSE("GPL");