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 int qeth_l2_probe_device(struct ccwgroup_device *gdev)
1032 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1034 qeth_l2_create_device_attributes(&gdev->dev);
1035 INIT_LIST_HEAD(&card->vid_list);
1036 hash_init(card->mac_htable);
1037 card->options.layer2 = 1;
1038 card->info.hwtrap = 0;
1042 static void qeth_l2_remove_device(struct ccwgroup_device *cgdev)
1044 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
1046 qeth_l2_remove_device_attributes(&cgdev->dev);
1047 qeth_set_allowed_threads(card, 0, 1);
1048 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
1050 if (cgdev->state == CCWGROUP_ONLINE)
1051 qeth_l2_set_offline(cgdev);
1054 netif_napi_del(&card->napi);
1055 unregister_netdev(card->dev);
1061 static const struct ethtool_ops qeth_l2_ethtool_ops = {
1062 .get_link = ethtool_op_get_link,
1063 .get_strings = qeth_core_get_strings,
1064 .get_ethtool_stats = qeth_core_get_ethtool_stats,
1065 .get_sset_count = qeth_core_get_sset_count,
1066 .get_drvinfo = qeth_core_get_drvinfo,
1067 .get_settings = qeth_core_ethtool_get_settings,
1070 static const struct ethtool_ops qeth_l2_osn_ops = {
1071 .get_strings = qeth_core_get_strings,
1072 .get_ethtool_stats = qeth_core_get_ethtool_stats,
1073 .get_sset_count = qeth_core_get_sset_count,
1074 .get_drvinfo = qeth_core_get_drvinfo,
1077 static const struct net_device_ops qeth_l2_netdev_ops = {
1078 .ndo_open = qeth_l2_open,
1079 .ndo_stop = qeth_l2_stop,
1080 .ndo_get_stats = qeth_get_stats,
1081 .ndo_start_xmit = qeth_l2_hard_start_xmit,
1082 .ndo_validate_addr = eth_validate_addr,
1083 .ndo_set_rx_mode = qeth_l2_set_rx_mode,
1084 .ndo_do_ioctl = qeth_l2_do_ioctl,
1085 .ndo_set_mac_address = qeth_l2_set_mac_address,
1086 .ndo_change_mtu = qeth_change_mtu,
1087 .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid,
1088 .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid,
1089 .ndo_tx_timeout = qeth_tx_timeout,
1090 .ndo_fix_features = qeth_l2_fix_features,
1091 .ndo_set_features = qeth_l2_set_features
1094 static int qeth_l2_setup_netdev(struct qeth_card *card)
1096 switch (card->info.type) {
1097 case QETH_CARD_TYPE_IQD:
1098 card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN,
1101 case QETH_CARD_TYPE_OSN:
1102 card->dev = alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN,
1104 card->dev->flags |= IFF_NOARP;
1107 card->dev = alloc_etherdev(0);
1113 card->dev->ml_priv = card;
1114 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
1115 card->dev->mtu = card->info.initial_mtu;
1116 card->dev->netdev_ops = &qeth_l2_netdev_ops;
1117 card->dev->ethtool_ops =
1118 (card->info.type != QETH_CARD_TYPE_OSN) ?
1119 &qeth_l2_ethtool_ops : &qeth_l2_osn_ops;
1120 card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
1121 if (card->info.type == QETH_CARD_TYPE_OSD && !card->info.guestlan) {
1122 card->dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM;
1123 /* Turn on RX offloading per default */
1124 card->dev->features |= NETIF_F_RXCSUM;
1126 card->info.broadcast_capable = 1;
1127 qeth_l2_request_initial_mac(card);
1128 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
1129 netif_napi_add(card->dev, &card->napi, qeth_l2_poll, QETH_NAPI_WEIGHT);
1130 netif_carrier_off(card->dev);
1131 return register_netdev(card->dev);
1134 static int qeth_l2_start_ipassists(struct qeth_card *card)
1136 /* configure isolation level */
1137 if (qeth_set_access_ctrl_online(card, 0))
1139 if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
1140 qeth_set_rx_csum(card, 1);
1141 qeth_start_ipa_tx_checksum(card);
1145 static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
1147 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1149 enum qeth_card_states recover_flag;
1151 mutex_lock(&card->discipline_mutex);
1152 mutex_lock(&card->conf_mutex);
1153 QETH_DBF_TEXT(SETUP, 2, "setonlin");
1154 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1156 recover_flag = card->state;
1157 rc = qeth_core_hardsetup_card(card);
1159 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
1163 qeth_bridgeport_query_support(card);
1164 if (card->options.sbp.supported_funcs)
1165 dev_info(&card->gdev->dev,
1166 "The device represents a Bridge Capable Port\n");
1167 qeth_trace_features(card);
1169 if (!card->dev && qeth_l2_setup_netdev(card)) {
1174 if (card->info.type != QETH_CARD_TYPE_OSN)
1175 qeth_l2_send_setmac(card, &card->dev->dev_addr[0]);
1177 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
1178 if (card->info.hwtrap &&
1179 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
1180 card->info.hwtrap = 0;
1182 card->info.hwtrap = 0;
1184 qeth_l2_setup_bridgeport_attrs(card);
1186 card->state = CARD_STATE_HARDSETUP;
1187 memset(&card->rx, 0, sizeof(struct qeth_rx));
1188 qeth_print_status_message(card);
1191 QETH_DBF_TEXT(SETUP, 2, "softsetp");
1193 rc = qeth_send_startlan(card);
1195 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
1197 dev_warn(&card->gdev->dev,
1198 "The LAN is offline\n");
1199 card->lan_online = 0;
1205 card->lan_online = 1;
1208 if ((card->info.type == QETH_CARD_TYPE_OSD) ||
1209 (card->info.type == QETH_CARD_TYPE_OSX)) {
1210 if (qeth_l2_start_ipassists(card))
1214 if (card->info.type != QETH_CARD_TYPE_OSN &&
1215 card->info.type != QETH_CARD_TYPE_OSM)
1216 qeth_l2_process_vlans(card);
1218 netif_tx_disable(card->dev);
1220 rc = qeth_init_qdio_queues(card);
1222 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
1226 card->state = CARD_STATE_SOFTSETUP;
1227 if (card->lan_online)
1228 netif_carrier_on(card->dev);
1230 netif_carrier_off(card->dev);
1232 qeth_set_allowed_threads(card, 0xffffffff, 0);
1233 if (recover_flag == CARD_STATE_RECOVER) {
1234 if (recovery_mode &&
1235 card->info.type != QETH_CARD_TYPE_OSN) {
1236 __qeth_l2_open(card->dev);
1239 dev_open(card->dev);
1242 /* this also sets saved unicast addresses */
1243 qeth_l2_set_rx_mode(card->dev);
1245 /* let user_space know that device is online */
1246 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
1247 mutex_unlock(&card->conf_mutex);
1248 mutex_unlock(&card->discipline_mutex);
1252 qeth_l2_stop_card(card, 0);
1253 ccw_device_set_offline(CARD_DDEV(card));
1254 ccw_device_set_offline(CARD_WDEV(card));
1255 ccw_device_set_offline(CARD_RDEV(card));
1256 qdio_free(CARD_DDEV(card));
1257 if (recover_flag == CARD_STATE_RECOVER)
1258 card->state = CARD_STATE_RECOVER;
1260 card->state = CARD_STATE_DOWN;
1261 mutex_unlock(&card->conf_mutex);
1262 mutex_unlock(&card->discipline_mutex);
1266 static int qeth_l2_set_online(struct ccwgroup_device *gdev)
1268 return __qeth_l2_set_online(gdev, 0);
1271 static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev,
1274 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
1275 int rc = 0, rc2 = 0, rc3 = 0;
1276 enum qeth_card_states recover_flag;
1278 mutex_lock(&card->discipline_mutex);
1279 mutex_lock(&card->conf_mutex);
1280 QETH_DBF_TEXT(SETUP, 3, "setoffl");
1281 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
1283 if (card->dev && netif_carrier_ok(card->dev))
1284 netif_carrier_off(card->dev);
1285 recover_flag = card->state;
1286 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
1287 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1288 card->info.hwtrap = 1;
1290 qeth_l2_stop_card(card, recovery_mode);
1291 rc = ccw_device_set_offline(CARD_DDEV(card));
1292 rc2 = ccw_device_set_offline(CARD_WDEV(card));
1293 rc3 = ccw_device_set_offline(CARD_RDEV(card));
1295 rc = (rc2) ? rc2 : rc3;
1297 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
1298 qdio_free(CARD_DDEV(card));
1299 if (recover_flag == CARD_STATE_UP)
1300 card->state = CARD_STATE_RECOVER;
1301 /* let user_space know that device is offline */
1302 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
1303 mutex_unlock(&card->conf_mutex);
1304 mutex_unlock(&card->discipline_mutex);
1308 static int qeth_l2_set_offline(struct ccwgroup_device *cgdev)
1310 return __qeth_l2_set_offline(cgdev, 0);
1313 static int qeth_l2_recover(void *ptr)
1315 struct qeth_card *card;
1318 card = (struct qeth_card *) ptr;
1319 QETH_CARD_TEXT(card, 2, "recover1");
1320 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
1322 QETH_CARD_TEXT(card, 2, "recover2");
1323 dev_warn(&card->gdev->dev,
1324 "A recovery process has been started for the device\n");
1325 qeth_set_recovery_task(card);
1326 __qeth_l2_set_offline(card->gdev, 1);
1327 rc = __qeth_l2_set_online(card->gdev, 1);
1329 dev_info(&card->gdev->dev,
1330 "Device successfully recovered!\n");
1332 qeth_close_dev(card);
1333 dev_warn(&card->gdev->dev, "The qeth device driver "
1334 "failed to recover an error on the device\n");
1336 qeth_clear_recovery_task(card);
1337 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1338 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
1342 static int __init qeth_l2_init(void)
1344 pr_info("register layer 2 discipline\n");
1348 static void __exit qeth_l2_exit(void)
1350 pr_info("unregister layer 2 discipline\n");
1353 static void qeth_l2_shutdown(struct ccwgroup_device *gdev)
1355 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1356 qeth_set_allowed_threads(card, 0, 1);
1357 if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)
1358 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1359 qeth_qdio_clear_card(card, 0);
1360 qeth_clear_qdio_buffers(card);
1361 qdio_free(CARD_DDEV(card));
1364 static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev)
1366 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1369 netif_device_detach(card->dev);
1370 qeth_set_allowed_threads(card, 0, 1);
1371 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
1372 if (gdev->state == CCWGROUP_OFFLINE)
1374 if (card->state == CARD_STATE_UP) {
1375 if (card->info.hwtrap)
1376 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1377 __qeth_l2_set_offline(card->gdev, 1);
1379 __qeth_l2_set_offline(card->gdev, 0);
1383 static int qeth_l2_pm_resume(struct ccwgroup_device *gdev)
1385 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1388 if (gdev->state == CCWGROUP_OFFLINE)
1391 if (card->state == CARD_STATE_RECOVER) {
1392 rc = __qeth_l2_set_online(card->gdev, 1);
1395 dev_close(card->dev);
1399 rc = __qeth_l2_set_online(card->gdev, 0);
1401 qeth_set_allowed_threads(card, 0xffffffff, 0);
1403 netif_device_attach(card->dev);
1405 dev_warn(&card->gdev->dev, "The qeth device driver "
1406 "failed to recover an error on the device\n");
1410 /* Returns zero if the command is successfully "consumed" */
1411 static int qeth_l2_control_event(struct qeth_card *card,
1412 struct qeth_ipa_cmd *cmd)
1414 switch (cmd->hdr.command) {
1415 case IPA_CMD_SETBRIDGEPORT_OSA:
1416 case IPA_CMD_SETBRIDGEPORT_IQD:
1417 if (cmd->data.sbp.hdr.command_code ==
1418 IPA_SBP_BRIDGE_PORT_STATE_CHANGE) {
1419 qeth_bridge_state_change(card, cmd);
1423 case IPA_CMD_ADDRESS_CHANGE_NOTIF:
1424 qeth_bridge_host_event(card, cmd);
1431 struct qeth_discipline qeth_l2_discipline = {
1432 .start_poll = qeth_qdio_start_poll,
1433 .input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
1434 .output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
1435 .recover = qeth_l2_recover,
1436 .setup = qeth_l2_probe_device,
1437 .remove = qeth_l2_remove_device,
1438 .set_online = qeth_l2_set_online,
1439 .set_offline = qeth_l2_set_offline,
1440 .shutdown = qeth_l2_shutdown,
1441 .freeze = qeth_l2_pm_suspend,
1442 .thaw = qeth_l2_pm_resume,
1443 .restore = qeth_l2_pm_resume,
1444 .control_event_handler = qeth_l2_control_event,
1446 EXPORT_SYMBOL_GPL(qeth_l2_discipline);
1448 static int qeth_osn_send_control_data(struct qeth_card *card, int len,
1449 struct qeth_cmd_buffer *iob)
1451 unsigned long flags;
1454 QETH_CARD_TEXT(card, 5, "osndctrd");
1456 wait_event(card->wait_q,
1457 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1458 qeth_prepare_control_data(card, len, iob);
1459 QETH_CARD_TEXT(card, 6, "osnoirqp");
1460 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1461 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1462 (addr_t) iob, 0, 0);
1463 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1465 QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: "
1466 "ccw_device_start rc = %i\n", rc);
1467 QETH_CARD_TEXT_(card, 2, " err%d", rc);
1468 qeth_release_buffer(iob->channel, iob);
1469 atomic_set(&card->write.irq_pending, 0);
1470 wake_up(&card->wait_q);
1475 static int qeth_osn_send_ipa_cmd(struct qeth_card *card,
1476 struct qeth_cmd_buffer *iob, int data_len)
1480 QETH_CARD_TEXT(card, 4, "osndipa");
1482 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1483 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1485 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1486 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1487 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1488 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1489 return qeth_osn_send_control_data(card, s1, iob);
1492 int qeth_osn_assist(struct net_device *dev, void *data, int data_len)
1494 struct qeth_cmd_buffer *iob;
1495 struct qeth_card *card;
1500 card = dev->ml_priv;
1503 QETH_CARD_TEXT(card, 2, "osnsdmc");
1504 if (!qeth_card_hw_is_reachable(card))
1506 iob = qeth_wait_for_buffer(&card->write);
1507 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
1508 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
1511 EXPORT_SYMBOL(qeth_osn_assist);
1513 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev,
1514 int (*assist_cb)(struct net_device *, void *),
1515 int (*data_cb)(struct sk_buff *))
1517 struct qeth_card *card;
1519 *dev = qeth_l2_netdev_by_devno(read_dev_no);
1522 card = (*dev)->ml_priv;
1525 QETH_CARD_TEXT(card, 2, "osnreg");
1526 if ((assist_cb == NULL) || (data_cb == NULL))
1528 card->osn_info.assist_cb = assist_cb;
1529 card->osn_info.data_cb = data_cb;
1532 EXPORT_SYMBOL(qeth_osn_register);
1534 void qeth_osn_deregister(struct net_device *dev)
1536 struct qeth_card *card;
1540 card = dev->ml_priv;
1543 QETH_CARD_TEXT(card, 2, "osndereg");
1544 card->osn_info.assist_cb = NULL;
1545 card->osn_info.data_cb = NULL;
1548 EXPORT_SYMBOL(qeth_osn_deregister);
1550 /* SETBRIDGEPORT support, async notifications */
1552 enum qeth_an_event_type {anev_reg_unreg, anev_abort, anev_reset};
1555 * qeth_bridge_emit_host_event() - bridgeport address change notification
1556 * @card: qeth_card structure pointer, for udev events.
1557 * @evtype: "normal" register/unregister, or abort, or reset. For abort
1558 * and reset token and addr_lnid are unused and may be NULL.
1559 * @code: event bitmask: high order bit 0x80 value 1 means removal of an
1560 * object, 0 - addition of an object.
1561 * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC.
1562 * @token: "network token" structure identifying physical address of the port.
1563 * @addr_lnid: pointer to structure with MAC address and VLAN ID.
1565 * This function is called when registrations and deregistrations are
1566 * reported by the hardware, and also when notifications are enabled -
1567 * for all currently registered addresses.
1569 static void qeth_bridge_emit_host_event(struct qeth_card *card,
1570 enum qeth_an_event_type evtype,
1571 u8 code, struct net_if_token *token, struct mac_addr_lnid *addr_lnid)
1578 case anev_reg_unreg:
1579 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=%s",
1580 (code & IPA_ADDR_CHANGE_CODE_REMOVAL)
1581 ? "deregister" : "register");
1582 env[i] = str[i]; i++;
1583 if (code & IPA_ADDR_CHANGE_CODE_VLANID) {
1584 snprintf(str[i], sizeof(str[i]), "VLAN=%d",
1586 env[i] = str[i]; i++;
1588 if (code & IPA_ADDR_CHANGE_CODE_MACADDR) {
1589 snprintf(str[i], sizeof(str[i]), "MAC=%pM",
1591 env[i] = str[i]; i++;
1593 snprintf(str[i], sizeof(str[i]), "NTOK_BUSID=%x.%x.%04x",
1594 token->cssid, token->ssid, token->devnum);
1595 env[i] = str[i]; i++;
1596 snprintf(str[i], sizeof(str[i]), "NTOK_IID=%02x", token->iid);
1597 env[i] = str[i]; i++;
1598 snprintf(str[i], sizeof(str[i]), "NTOK_CHPID=%02x",
1600 env[i] = str[i]; i++;
1601 snprintf(str[i], sizeof(str[i]), "NTOK_CHID=%04x", token->chid);
1602 env[i] = str[i]; i++;
1605 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=abort");
1606 env[i] = str[i]; i++;
1609 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=reset");
1610 env[i] = str[i]; i++;
1614 kobject_uevent_env(&card->gdev->dev.kobj, KOBJ_CHANGE, env);
1617 struct qeth_bridge_state_data {
1618 struct work_struct worker;
1619 struct qeth_card *card;
1620 struct qeth_sbp_state_change qports;
1623 static void qeth_bridge_state_change_worker(struct work_struct *work)
1625 struct qeth_bridge_state_data *data =
1626 container_of(work, struct qeth_bridge_state_data, worker);
1627 /* We are only interested in the first entry - local port */
1628 struct qeth_sbp_port_entry *entry = &data->qports.entry[0];
1629 char env_locrem[32];
1639 /* Role should not change by itself, but if it did, */
1640 /* information from the hardware is authoritative. */
1641 mutex_lock(&data->card->conf_mutex);
1642 data->card->options.sbp.role = entry->role;
1643 mutex_unlock(&data->card->conf_mutex);
1645 snprintf(env_locrem, sizeof(env_locrem), "BRIDGEPORT=statechange");
1646 snprintf(env_role, sizeof(env_role), "ROLE=%s",
1647 (entry->role == QETH_SBP_ROLE_NONE) ? "none" :
1648 (entry->role == QETH_SBP_ROLE_PRIMARY) ? "primary" :
1649 (entry->role == QETH_SBP_ROLE_SECONDARY) ? "secondary" :
1651 snprintf(env_state, sizeof(env_state), "STATE=%s",
1652 (entry->state == QETH_SBP_STATE_INACTIVE) ? "inactive" :
1653 (entry->state == QETH_SBP_STATE_STANDBY) ? "standby" :
1654 (entry->state == QETH_SBP_STATE_ACTIVE) ? "active" :
1656 kobject_uevent_env(&data->card->gdev->dev.kobj,
1661 static void qeth_bridge_state_change(struct qeth_card *card,
1662 struct qeth_ipa_cmd *cmd)
1664 struct qeth_sbp_state_change *qports =
1665 &cmd->data.sbp.data.state_change;
1666 struct qeth_bridge_state_data *data;
1669 QETH_CARD_TEXT(card, 2, "brstchng");
1670 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
1671 QETH_CARD_TEXT_(card, 2, "BPsz%04x", qports->entry_length);
1674 extrasize = sizeof(struct qeth_sbp_port_entry) * qports->num_entries;
1675 data = kzalloc(sizeof(struct qeth_bridge_state_data) + extrasize,
1678 QETH_CARD_TEXT(card, 2, "BPSalloc");
1681 INIT_WORK(&data->worker, qeth_bridge_state_change_worker);
1683 memcpy(&data->qports, qports,
1684 sizeof(struct qeth_sbp_state_change) + extrasize);
1685 queue_work(qeth_wq, &data->worker);
1688 struct qeth_bridge_host_data {
1689 struct work_struct worker;
1690 struct qeth_card *card;
1691 struct qeth_ipacmd_addr_change hostevs;
1694 static void qeth_bridge_host_event_worker(struct work_struct *work)
1696 struct qeth_bridge_host_data *data =
1697 container_of(work, struct qeth_bridge_host_data, worker);
1700 if (data->hostevs.lost_event_mask) {
1701 dev_info(&data->card->gdev->dev,
1702 "Address notification from the Bridge Port stopped %s (%s)\n",
1703 data->card->dev->name,
1704 (data->hostevs.lost_event_mask == 0x01)
1706 : (data->hostevs.lost_event_mask == 0x02)
1707 ? "Bridge port state change"
1708 : "Unknown reason");
1709 mutex_lock(&data->card->conf_mutex);
1710 data->card->options.sbp.hostnotification = 0;
1711 mutex_unlock(&data->card->conf_mutex);
1712 qeth_bridge_emit_host_event(data->card, anev_abort,
1715 for (i = 0; i < data->hostevs.num_entries; i++) {
1716 struct qeth_ipacmd_addr_change_entry *entry =
1717 &data->hostevs.entry[i];
1718 qeth_bridge_emit_host_event(data->card,
1721 &entry->token, &entry->addr_lnid);
1726 static void qeth_bridge_host_event(struct qeth_card *card,
1727 struct qeth_ipa_cmd *cmd)
1729 struct qeth_ipacmd_addr_change *hostevs =
1730 &cmd->data.addrchange;
1731 struct qeth_bridge_host_data *data;
1734 QETH_CARD_TEXT(card, 2, "brhostev");
1735 if (cmd->hdr.return_code != 0x0000) {
1736 if (cmd->hdr.return_code == 0x0010) {
1737 if (hostevs->lost_event_mask == 0x00)
1738 hostevs->lost_event_mask = 0xff;
1740 QETH_CARD_TEXT_(card, 2, "BPHe%04x",
1741 cmd->hdr.return_code);
1745 extrasize = sizeof(struct qeth_ipacmd_addr_change_entry) *
1746 hostevs->num_entries;
1747 data = kzalloc(sizeof(struct qeth_bridge_host_data) + extrasize,
1750 QETH_CARD_TEXT(card, 2, "BPHalloc");
1753 INIT_WORK(&data->worker, qeth_bridge_host_event_worker);
1755 memcpy(&data->hostevs, hostevs,
1756 sizeof(struct qeth_ipacmd_addr_change) + extrasize);
1757 queue_work(qeth_wq, &data->worker);
1760 /* SETBRIDGEPORT support; sending commands */
1762 struct _qeth_sbp_cbctl {
1768 enum qeth_sbp_roles *role;
1769 enum qeth_sbp_states *state;
1775 * qeth_bridgeport_makerc() - derive "traditional" error from hardware codes.
1776 * @card: qeth_card structure pointer, for debug messages.
1777 * @cbctl: state structure with hardware return codes.
1778 * @setcmd: IPA command code
1780 * Returns negative errno-compatible error indication or 0 on success.
1782 static int qeth_bridgeport_makerc(struct qeth_card *card,
1783 struct _qeth_sbp_cbctl *cbctl, enum qeth_ipa_sbp_cmd setcmd)
1786 int is_iqd = (card->info.type == QETH_CARD_TYPE_IQD);
1788 if ((is_iqd && (cbctl->ipa_rc == IPA_RC_SUCCESS)) ||
1789 (!is_iqd && (cbctl->ipa_rc == cbctl->cmd_rc)))
1790 switch (cbctl->cmd_rc) {
1799 case 0x000C: /* Not configured as bridge Port */
1800 rc = -ENODEV; /* maybe not the best code here? */
1801 dev_err(&card->gdev->dev,
1802 "The device is not configured as a Bridge Port\n");
1805 case 0x0014: /* Another device is Primary */
1807 case IPA_SBP_SET_PRIMARY_BRIDGE_PORT:
1809 dev_err(&card->gdev->dev,
1810 "The LAN already has a primary Bridge Port\n");
1812 case IPA_SBP_SET_SECONDARY_BRIDGE_PORT:
1814 dev_err(&card->gdev->dev,
1815 "The device is already a primary Bridge Port\n");
1822 case 0x0018: /* This device is currently Secondary */
1824 dev_err(&card->gdev->dev,
1825 "The device is already a secondary Bridge Port\n");
1828 case 0x001C: /* Limit for Secondary devices reached */
1830 dev_err(&card->gdev->dev,
1831 "The LAN cannot have more secondary Bridge Ports\n");
1834 case 0x0024: /* This device is currently Primary */
1836 dev_err(&card->gdev->dev,
1837 "The device is already a primary Bridge Port\n");
1840 case 0x0020: /* Not authorized by zManager */
1842 dev_err(&card->gdev->dev,
1843 "The device is not authorized to be a Bridge Port\n");
1849 switch (cbctl->ipa_rc) {
1850 case IPA_RC_NOTSUPP:
1853 case IPA_RC_UNSUPPORTED_COMMAND:
1861 QETH_CARD_TEXT_(card, 2, "SBPi%04x", cbctl->ipa_rc);
1862 QETH_CARD_TEXT_(card, 2, "SBPc%04x", cbctl->cmd_rc);
1867 static inline int ipa_cmd_sbp(struct qeth_card *card)
1869 return (card->info.type == QETH_CARD_TYPE_IQD) ?
1870 IPA_CMD_SETBRIDGEPORT_IQD :
1871 IPA_CMD_SETBRIDGEPORT_OSA;
1874 static int qeth_bridgeport_query_support_cb(struct qeth_card *card,
1875 struct qeth_reply *reply, unsigned long data)
1877 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1878 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1879 QETH_CARD_TEXT(card, 2, "brqsupcb");
1880 cbctl->ipa_rc = cmd->hdr.return_code;
1881 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1882 if ((cbctl->ipa_rc == 0) && (cbctl->cmd_rc == 0)) {
1883 cbctl->data.supported =
1884 cmd->data.sbp.data.query_cmds_supp.supported_cmds;
1886 cbctl->data.supported = 0;
1892 * qeth_bridgeport_query_support() - store bitmask of supported subfunctions.
1893 * @card: qeth_card structure pointer.
1895 * Sets bitmask of supported setbridgeport subfunctions in the qeth_card
1896 * strucutre: card->options.sbp.supported_funcs.
1898 static void qeth_bridgeport_query_support(struct qeth_card *card)
1900 struct qeth_cmd_buffer *iob;
1901 struct qeth_ipa_cmd *cmd;
1902 struct _qeth_sbp_cbctl cbctl;
1904 QETH_CARD_TEXT(card, 2, "brqsuppo");
1905 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
1908 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1909 cmd->data.sbp.hdr.cmdlength =
1910 sizeof(struct qeth_ipacmd_sbp_hdr) +
1911 sizeof(struct qeth_sbp_query_cmds_supp);
1912 cmd->data.sbp.hdr.command_code =
1913 IPA_SBP_QUERY_COMMANDS_SUPPORTED;
1914 cmd->data.sbp.hdr.used_total = 1;
1915 cmd->data.sbp.hdr.seq_no = 1;
1916 if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb,
1918 qeth_bridgeport_makerc(card, &cbctl,
1919 IPA_SBP_QUERY_COMMANDS_SUPPORTED)) {
1920 /* non-zero makerc signifies failure, and produce messages */
1921 card->options.sbp.role = QETH_SBP_ROLE_NONE;
1924 card->options.sbp.supported_funcs = cbctl.data.supported;
1927 static int qeth_bridgeport_query_ports_cb(struct qeth_card *card,
1928 struct qeth_reply *reply, unsigned long data)
1930 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1931 struct qeth_sbp_query_ports *qports = &cmd->data.sbp.data.query_ports;
1932 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1934 QETH_CARD_TEXT(card, 2, "brqprtcb");
1935 cbctl->ipa_rc = cmd->hdr.return_code;
1936 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1937 if ((cbctl->ipa_rc != 0) || (cbctl->cmd_rc != 0))
1939 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
1940 cbctl->cmd_rc = 0xffff;
1941 QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length);
1944 /* first entry contains the state of the local port */
1945 if (qports->num_entries > 0) {
1946 if (cbctl->data.qports.role)
1947 *cbctl->data.qports.role = qports->entry[0].role;
1948 if (cbctl->data.qports.state)
1949 *cbctl->data.qports.state = qports->entry[0].state;
1955 * qeth_bridgeport_query_ports() - query local bridgeport status.
1956 * @card: qeth_card structure pointer.
1957 * @role: Role of the port: 0-none, 1-primary, 2-secondary.
1958 * @state: State of the port: 0-inactive, 1-standby, 2-active.
1960 * Returns negative errno-compatible error indication or 0 on success.
1962 * 'role' and 'state' are not updated in case of hardware operation failure.
1964 int qeth_bridgeport_query_ports(struct qeth_card *card,
1965 enum qeth_sbp_roles *role, enum qeth_sbp_states *state)
1968 struct qeth_cmd_buffer *iob;
1969 struct qeth_ipa_cmd *cmd;
1970 struct _qeth_sbp_cbctl cbctl = {
1979 QETH_CARD_TEXT(card, 2, "brqports");
1980 if (!(card->options.sbp.supported_funcs & IPA_SBP_QUERY_BRIDGE_PORTS))
1982 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
1985 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1986 cmd->data.sbp.hdr.cmdlength =
1987 sizeof(struct qeth_ipacmd_sbp_hdr);
1988 cmd->data.sbp.hdr.command_code =
1989 IPA_SBP_QUERY_BRIDGE_PORTS;
1990 cmd->data.sbp.hdr.used_total = 1;
1991 cmd->data.sbp.hdr.seq_no = 1;
1992 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb,
1996 return qeth_bridgeport_makerc(card, &cbctl, IPA_SBP_QUERY_BRIDGE_PORTS);
1998 EXPORT_SYMBOL_GPL(qeth_bridgeport_query_ports);
2000 static int qeth_bridgeport_set_cb(struct qeth_card *card,
2001 struct qeth_reply *reply, unsigned long data)
2003 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data;
2004 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
2005 QETH_CARD_TEXT(card, 2, "brsetrcb");
2006 cbctl->ipa_rc = cmd->hdr.return_code;
2007 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
2012 * qeth_bridgeport_setrole() - Assign primary role to the port.
2013 * @card: qeth_card structure pointer.
2014 * @role: Role to assign.
2016 * Returns negative errno-compatible error indication or 0 on success.
2018 int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role)
2022 struct qeth_cmd_buffer *iob;
2023 struct qeth_ipa_cmd *cmd;
2024 struct _qeth_sbp_cbctl cbctl;
2025 enum qeth_ipa_sbp_cmd setcmd;
2027 QETH_CARD_TEXT(card, 2, "brsetrol");
2029 case QETH_SBP_ROLE_NONE:
2030 setcmd = IPA_SBP_RESET_BRIDGE_PORT_ROLE;
2031 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
2032 sizeof(struct qeth_sbp_reset_role);
2034 case QETH_SBP_ROLE_PRIMARY:
2035 setcmd = IPA_SBP_SET_PRIMARY_BRIDGE_PORT;
2036 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
2037 sizeof(struct qeth_sbp_set_primary);
2039 case QETH_SBP_ROLE_SECONDARY:
2040 setcmd = IPA_SBP_SET_SECONDARY_BRIDGE_PORT;
2041 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
2042 sizeof(struct qeth_sbp_set_secondary);
2047 if (!(card->options.sbp.supported_funcs & setcmd))
2049 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
2052 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2053 cmd->data.sbp.hdr.cmdlength = cmdlength;
2054 cmd->data.sbp.hdr.command_code = setcmd;
2055 cmd->data.sbp.hdr.used_total = 1;
2056 cmd->data.sbp.hdr.seq_no = 1;
2057 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb,
2061 return qeth_bridgeport_makerc(card, &cbctl, setcmd);
2065 * qeth_anset_makerc() - derive "traditional" error from hardware codes.
2066 * @card: qeth_card structure pointer, for debug messages.
2068 * Returns negative errno-compatible error indication or 0 on success.
2070 static int qeth_anset_makerc(struct qeth_card *card, int pnso_rc, u16 response)
2083 dev_err(&card->gdev->dev,
2084 "Setting address notification failed\n");
2096 QETH_CARD_TEXT_(card, 2, "SBPp%04x", pnso_rc);
2097 QETH_CARD_TEXT_(card, 2, "SBPr%04x", response);
2102 static void qeth_bridgeport_an_set_cb(void *priv,
2103 enum qdio_brinfo_entry_type type, void *entry)
2105 struct qeth_card *card = (struct qeth_card *)priv;
2106 struct qdio_brinfo_entry_l2 *l2entry;
2109 if (type != l2_addr_lnid) {
2114 l2entry = (struct qdio_brinfo_entry_l2 *)entry;
2115 code = IPA_ADDR_CHANGE_CODE_MACADDR;
2116 if (l2entry->addr_lnid.lnid)
2117 code |= IPA_ADDR_CHANGE_CODE_VLANID;
2118 qeth_bridge_emit_host_event(card, anev_reg_unreg, code,
2119 (struct net_if_token *)&l2entry->nit,
2120 (struct mac_addr_lnid *)&l2entry->addr_lnid);
2124 * qeth_bridgeport_an_set() - Enable or disable bridgeport address notification
2125 * @card: qeth_card structure pointer.
2126 * @enable: 0 - disable, non-zero - enable notifications
2128 * Returns negative errno-compatible error indication or 0 on success.
2130 * On enable, emits a series of address notifications udev events for all
2131 * currently registered hosts.
2133 int qeth_bridgeport_an_set(struct qeth_card *card, int enable)
2137 struct ccw_device *ddev;
2138 struct subchannel_id schid;
2142 if (!card->options.sbp.supported_funcs)
2144 ddev = CARD_DDEV(card);
2145 ccw_device_get_schid(ddev, &schid);
2148 qeth_bridge_emit_host_event(card, anev_reset, 0, NULL, NULL);
2149 rc = qdio_pnso_brinfo(schid, 1, &response,
2150 qeth_bridgeport_an_set_cb, card);
2152 rc = qdio_pnso_brinfo(schid, 0, &response, NULL, NULL);
2153 return qeth_anset_makerc(card, rc, response);
2155 EXPORT_SYMBOL_GPL(qeth_bridgeport_an_set);
2157 module_init(qeth_l2_init);
2158 module_exit(qeth_l2_exit);
2159 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
2160 MODULE_DESCRIPTION("qeth layer 2 discipline");
2161 MODULE_LICENSE("GPL");