1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright IBM Corp. 2007, 2009
4 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
5 * Frank Pavlic <fpavlic@de.ibm.com>,
6 * Thomas Spatzier <tspat@de.ibm.com>,
7 * Frank Blaschka <frank.blaschka@de.ibm.com>
10 #define KMSG_COMPONENT "qeth"
11 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
13 #include <linux/module.h>
14 #include <linux/moduleparam.h>
15 #include <linux/string.h>
16 #include <linux/errno.h>
17 #include <linux/kernel.h>
18 #include <linux/slab.h>
19 #include <linux/etherdevice.h>
20 #include <linux/list.h>
21 #include <linux/hash.h>
22 #include <linux/hashtable.h>
23 #include <asm/setup.h>
24 #include "qeth_core.h"
27 static void qeth_bridgeport_query_support(struct qeth_card *card);
28 static void qeth_bridge_state_change(struct qeth_card *card,
29 struct qeth_ipa_cmd *cmd);
30 static void qeth_bridge_host_event(struct qeth_card *card,
31 struct qeth_ipa_cmd *cmd);
32 static void qeth_l2_vnicc_set_defaults(struct qeth_card *card);
33 static void qeth_l2_vnicc_init(struct qeth_card *card);
34 static bool qeth_l2_vnicc_recover_timeout(struct qeth_card *card, u32 vnicc,
37 static int qeth_l2_setdelmac_makerc(struct qeth_card *card, u16 retcode)
42 QETH_CARD_TEXT_(card, 2, "err%04x", retcode);
47 case IPA_RC_L2_UNSUPPORTED_CMD:
50 case IPA_RC_L2_ADDR_TABLE_FULL:
53 case IPA_RC_L2_DUP_MAC:
54 case IPA_RC_L2_DUP_LAYER3_MAC:
57 case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP:
58 case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP:
61 case IPA_RC_L2_MAC_NOT_FOUND:
71 static int qeth_l2_send_setdelmac_cb(struct qeth_card *card,
72 struct qeth_reply *reply,
75 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
77 return qeth_l2_setdelmac_makerc(card, cmd->hdr.return_code);
80 static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac,
81 enum qeth_ipa_cmds ipacmd)
83 struct qeth_ipa_cmd *cmd;
84 struct qeth_cmd_buffer *iob;
86 QETH_CARD_TEXT(card, 2, "L2sdmac");
87 iob = qeth_ipa_alloc_cmd(card, ipacmd, QETH_PROT_IPV4,
88 IPA_DATA_SIZEOF(setdelmac));
92 cmd->data.setdelmac.mac_length = ETH_ALEN;
93 ether_addr_copy(cmd->data.setdelmac.mac, mac);
94 return qeth_send_ipa_cmd(card, iob, qeth_l2_send_setdelmac_cb, NULL);
97 static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac)
101 QETH_CARD_TEXT(card, 2, "L2Setmac");
102 rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC);
104 dev_info(&card->gdev->dev,
105 "MAC address %pM successfully registered\n", mac);
109 dev_warn(&card->gdev->dev,
110 "MAC address %pM already exists\n", mac);
113 dev_warn(&card->gdev->dev,
114 "MAC address %pM is not authorized\n", mac);
121 static int qeth_l2_write_mac(struct qeth_card *card, u8 *mac)
123 enum qeth_ipa_cmds cmd = is_multicast_ether_addr(mac) ?
124 IPA_CMD_SETGMAC : IPA_CMD_SETVMAC;
127 QETH_CARD_TEXT(card, 2, "L2Wmac");
128 rc = qeth_l2_send_setdelmac(card, mac, cmd);
130 QETH_DBF_MESSAGE(2, "MAC already registered on device %x\n",
133 QETH_DBF_MESSAGE(2, "Failed to register MAC on device %x: %d\n",
134 CARD_DEVID(card), rc);
138 static int qeth_l2_remove_mac(struct qeth_card *card, u8 *mac)
140 enum qeth_ipa_cmds cmd = is_multicast_ether_addr(mac) ?
141 IPA_CMD_DELGMAC : IPA_CMD_DELVMAC;
144 QETH_CARD_TEXT(card, 2, "L2Rmac");
145 rc = qeth_l2_send_setdelmac(card, mac, cmd);
147 QETH_DBF_MESSAGE(2, "Failed to delete MAC on device %u: %d\n",
148 CARD_DEVID(card), rc);
152 static void qeth_l2_drain_rx_mode_cache(struct qeth_card *card)
154 struct qeth_mac *mac;
155 struct hlist_node *tmp;
158 hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) {
159 hash_del(&mac->hnode);
164 static void qeth_l2_fill_header(struct qeth_qdio_out_q *queue,
165 struct qeth_hdr *hdr, struct sk_buff *skb,
166 int ipv, unsigned int data_len)
168 int cast_type = qeth_get_ether_cast_type(skb);
169 struct vlan_ethhdr *veth = vlan_eth_hdr(skb);
171 hdr->hdr.l2.pkt_length = data_len;
173 if (skb_is_gso(skb)) {
174 hdr->hdr.l2.id = QETH_HEADER_TYPE_L2_TSO;
176 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
177 if (skb->ip_summed == CHECKSUM_PARTIAL)
178 qeth_tx_csum(skb, &hdr->hdr.l2.flags[1], ipv);
181 /* set byte byte 3 to casting flags */
182 if (cast_type == RTN_MULTICAST)
183 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST;
184 else if (cast_type == RTN_BROADCAST)
185 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST;
187 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST;
189 /* VSWITCH relies on the VLAN
190 * information to be present in
192 if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) {
193 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN;
194 hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI);
198 static int qeth_l2_setdelvlan_makerc(struct qeth_card *card, u16 retcode)
201 QETH_CARD_TEXT_(card, 2, "err%04x", retcode);
206 case IPA_RC_L2_INVALID_VLAN_ID:
208 case IPA_RC_L2_DUP_VLAN_ID:
210 case IPA_RC_L2_VLAN_ID_NOT_FOUND:
212 case IPA_RC_L2_VLAN_ID_NOT_ALLOWED:
219 static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card,
220 struct qeth_reply *reply,
223 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
225 QETH_CARD_TEXT(card, 2, "L2sdvcb");
226 if (cmd->hdr.return_code) {
227 QETH_DBF_MESSAGE(2, "Error in processing VLAN %u on device %x: %#x.\n",
228 cmd->data.setdelvlan.vlan_id,
229 CARD_DEVID(card), cmd->hdr.return_code);
230 QETH_CARD_TEXT_(card, 2, "L2VL%4x", cmd->hdr.command);
232 return qeth_l2_setdelvlan_makerc(card, cmd->hdr.return_code);
235 static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i,
236 enum qeth_ipa_cmds ipacmd)
238 struct qeth_ipa_cmd *cmd;
239 struct qeth_cmd_buffer *iob;
241 QETH_CARD_TEXT_(card, 4, "L2sdv%x", ipacmd);
242 iob = qeth_ipa_alloc_cmd(card, ipacmd, QETH_PROT_IPV4,
243 IPA_DATA_SIZEOF(setdelvlan));
246 cmd = __ipa_cmd(iob);
247 cmd->data.setdelvlan.vlan_id = i;
248 return qeth_send_ipa_cmd(card, iob, qeth_l2_send_setdelvlan_cb, NULL);
251 static int qeth_l2_vlan_rx_add_vid(struct net_device *dev,
252 __be16 proto, u16 vid)
254 struct qeth_card *card = dev->ml_priv;
256 QETH_CARD_TEXT_(card, 4, "aid:%d", vid);
260 return qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
263 static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev,
264 __be16 proto, u16 vid)
266 struct qeth_card *card = dev->ml_priv;
268 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
272 return qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
275 static void qeth_l2_stop_card(struct qeth_card *card)
277 QETH_CARD_TEXT(card, 2, "stopcard");
279 qeth_set_allowed_threads(card, 0, 1);
281 cancel_work_sync(&card->rx_mode_work);
282 qeth_l2_drain_rx_mode_cache(card);
284 if (card->state == CARD_STATE_SOFTSETUP) {
285 qeth_clear_ipacmd_list(card);
286 qeth_drain_output_queues(card);
287 cancel_delayed_work_sync(&card->buffer_reclaim_work);
288 card->state = CARD_STATE_DOWN;
291 qeth_qdio_clear_card(card, 0);
292 qeth_clear_working_pool_list(card);
293 flush_workqueue(card->event_wq);
294 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
295 card->info.promisc_mode = 0;
298 static int qeth_l2_request_initial_mac(struct qeth_card *card)
302 QETH_CARD_TEXT(card, 2, "l2reqmac");
305 rc = qeth_vm_request_mac(card);
308 QETH_DBF_MESSAGE(2, "z/VM MAC Service failed on device %x: %#x\n",
309 CARD_DEVID(card), rc);
310 QETH_CARD_TEXT_(card, 2, "err%04x", rc);
311 /* fall back to alternative mechanism: */
315 rc = qeth_setadpparms_change_macaddr(card);
318 QETH_DBF_MESSAGE(2, "READ_MAC Assist failed on device %x: %#x\n",
319 CARD_DEVID(card), rc);
320 QETH_CARD_TEXT_(card, 2, "1err%04x", rc);
321 /* fall back once more: */
324 /* some devices don't support a custom MAC address: */
325 if (IS_OSM(card) || IS_OSX(card))
326 return (rc) ? rc : -EADDRNOTAVAIL;
327 eth_hw_addr_random(card->dev);
330 QETH_CARD_HEX(card, 2, card->dev->dev_addr, card->dev->addr_len);
334 static void qeth_l2_register_dev_addr(struct qeth_card *card)
336 if (!is_valid_ether_addr(card->dev->dev_addr))
337 qeth_l2_request_initial_mac(card);
339 if (!IS_OSN(card) && !qeth_l2_send_setmac(card, card->dev->dev_addr))
340 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
343 static int qeth_l2_validate_addr(struct net_device *dev)
345 struct qeth_card *card = dev->ml_priv;
347 if (card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)
348 return eth_validate_addr(dev);
350 QETH_CARD_TEXT(card, 4, "nomacadr");
354 static int qeth_l2_set_mac_address(struct net_device *dev, void *p)
356 struct sockaddr *addr = p;
357 struct qeth_card *card = dev->ml_priv;
358 u8 old_addr[ETH_ALEN];
361 QETH_CARD_TEXT(card, 3, "setmac");
363 if (IS_OSM(card) || IS_OSX(card)) {
364 QETH_CARD_TEXT(card, 3, "setmcTYP");
367 QETH_CARD_HEX(card, 3, addr->sa_data, ETH_ALEN);
368 if (!is_valid_ether_addr(addr->sa_data))
369 return -EADDRNOTAVAIL;
371 /* don't register the same address twice */
372 if (ether_addr_equal_64bits(dev->dev_addr, addr->sa_data) &&
373 (card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
376 /* add the new address, switch over, drop the old */
377 rc = qeth_l2_send_setmac(card, addr->sa_data);
380 ether_addr_copy(old_addr, dev->dev_addr);
381 ether_addr_copy(dev->dev_addr, addr->sa_data);
383 if (card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)
384 qeth_l2_remove_mac(card, old_addr);
385 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
389 static void qeth_l2_promisc_to_bridge(struct qeth_card *card, bool enable)
394 QETH_CARD_TEXT(card, 3, "pmisc2br");
397 if (card->options.sbp.reflect_promisc_primary)
398 role = QETH_SBP_ROLE_PRIMARY;
400 role = QETH_SBP_ROLE_SECONDARY;
402 role = QETH_SBP_ROLE_NONE;
404 rc = qeth_bridgeport_setrole(card, role);
405 QETH_CARD_TEXT_(card, 2, "bpm%c%04x", enable ? '+' : '-', rc);
407 card->options.sbp.role = role;
408 card->info.promisc_mode = enable;
412 static void qeth_l2_set_promisc_mode(struct qeth_card *card)
414 bool enable = card->dev->flags & IFF_PROMISC;
416 if (card->info.promisc_mode == enable)
419 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) {
420 qeth_setadp_promisc_mode(card, enable);
422 mutex_lock(&card->sbp_lock);
423 if (card->options.sbp.reflect_promisc)
424 qeth_l2_promisc_to_bridge(card, enable);
425 mutex_unlock(&card->sbp_lock);
429 /* New MAC address is added to the hash table and marked to be written on card
430 * only if there is not in the hash table storage already
433 static void qeth_l2_add_mac(struct qeth_card *card, struct netdev_hw_addr *ha)
435 u32 mac_hash = get_unaligned((u32 *)(&ha->addr[2]));
436 struct qeth_mac *mac;
438 hash_for_each_possible(card->mac_htable, mac, hnode, mac_hash) {
439 if (ether_addr_equal_64bits(ha->addr, mac->mac_addr)) {
440 mac->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
445 mac = kzalloc(sizeof(struct qeth_mac), GFP_ATOMIC);
449 ether_addr_copy(mac->mac_addr, ha->addr);
450 mac->disp_flag = QETH_DISP_ADDR_ADD;
452 hash_add(card->mac_htable, &mac->hnode, mac_hash);
455 static void qeth_l2_rx_mode_work(struct work_struct *work)
457 struct qeth_card *card = container_of(work, struct qeth_card,
459 struct net_device *dev = card->dev;
460 struct netdev_hw_addr *ha;
461 struct qeth_mac *mac;
462 struct hlist_node *tmp;
466 QETH_CARD_TEXT(card, 3, "setmulti");
468 netif_addr_lock_bh(dev);
469 netdev_for_each_mc_addr(ha, dev)
470 qeth_l2_add_mac(card, ha);
471 netdev_for_each_uc_addr(ha, dev)
472 qeth_l2_add_mac(card, ha);
473 netif_addr_unlock_bh(dev);
475 hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) {
476 switch (mac->disp_flag) {
477 case QETH_DISP_ADDR_DELETE:
478 qeth_l2_remove_mac(card, mac->mac_addr);
479 hash_del(&mac->hnode);
482 case QETH_DISP_ADDR_ADD:
483 rc = qeth_l2_write_mac(card, mac->mac_addr);
485 hash_del(&mac->hnode);
491 /* for next call to set_rx_mode(): */
492 mac->disp_flag = QETH_DISP_ADDR_DELETE;
496 qeth_l2_set_promisc_mode(card);
499 static int qeth_l2_xmit_osn(struct qeth_card *card, struct sk_buff *skb,
500 struct qeth_qdio_out_q *queue)
502 struct qeth_hdr *hdr = (struct qeth_hdr *)skb->data;
503 addr_t end = (addr_t)(skb->data + sizeof(*hdr));
504 addr_t start = (addr_t)skb->data;
505 unsigned int elements = 0;
506 unsigned int hd_len = 0;
509 if (skb->protocol == htons(ETH_P_IPV6))
510 return -EPROTONOSUPPORT;
512 if (qeth_get_elements_for_range(start, end) > 1) {
513 /* Misaligned HW header, move it to its own buffer element. */
514 hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
517 hd_len = sizeof(*hdr);
518 skb_copy_from_linear_data(skb, (char *)hdr, hd_len);
522 elements += qeth_count_elements(skb, hd_len);
523 if (elements > queue->max_elements) {
528 rc = qeth_do_send_packet(card, queue, skb, hdr, hd_len, hd_len,
532 kmem_cache_free(qeth_core_header_cache, hdr);
536 static netdev_tx_t qeth_l2_hard_start_xmit(struct sk_buff *skb,
537 struct net_device *dev)
539 struct qeth_card *card = dev->ml_priv;
540 u16 txq = skb_get_queue_mapping(skb);
541 struct qeth_qdio_out_q *queue;
544 if (!skb_is_gso(skb))
545 qdisc_skb_cb(skb)->pkt_len = skb->len;
547 txq = qeth_iqd_translate_txq(dev, txq);
548 queue = card->qdio.out_qs[txq];
551 rc = qeth_l2_xmit_osn(card, skb, queue);
553 rc = qeth_xmit(card, skb, queue, qeth_get_ip_version(skb),
554 qeth_l2_fill_header);
559 QETH_TXQ_STAT_INC(queue, tx_dropped);
564 static u16 qeth_l2_select_queue(struct net_device *dev, struct sk_buff *skb,
565 struct net_device *sb_dev)
567 struct qeth_card *card = dev->ml_priv;
570 return qeth_iqd_select_queue(dev, skb,
571 qeth_get_ether_cast_type(skb),
573 return qeth_get_priority_queue(card, skb);
576 static const struct device_type qeth_l2_devtype = {
577 .name = "qeth_layer2",
578 .groups = qeth_l2_attr_groups,
581 static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
583 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
586 qeth_l2_vnicc_set_defaults(card);
587 mutex_init(&card->sbp_lock);
589 if (gdev->dev.type == &qeth_generic_devtype) {
590 rc = qeth_l2_create_device_attributes(&gdev->dev);
595 hash_init(card->mac_htable);
596 INIT_WORK(&card->rx_mode_work, qeth_l2_rx_mode_work);
600 static void qeth_l2_remove_device(struct ccwgroup_device *cgdev)
602 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
604 if (cgdev->dev.type == &qeth_generic_devtype)
605 qeth_l2_remove_device_attributes(&cgdev->dev);
606 qeth_set_allowed_threads(card, 0, 1);
607 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
609 if (cgdev->state == CCWGROUP_ONLINE)
610 qeth_set_offline(card, false);
612 cancel_work_sync(&card->close_dev_work);
613 if (qeth_netdev_is_registered(card->dev))
614 unregister_netdev(card->dev);
617 static void qeth_l2_set_rx_mode(struct net_device *dev)
619 struct qeth_card *card = dev->ml_priv;
621 schedule_work(&card->rx_mode_work);
624 static const struct net_device_ops qeth_l2_netdev_ops = {
625 .ndo_open = qeth_open,
626 .ndo_stop = qeth_stop,
627 .ndo_get_stats64 = qeth_get_stats64,
628 .ndo_start_xmit = qeth_l2_hard_start_xmit,
629 .ndo_features_check = qeth_features_check,
630 .ndo_select_queue = qeth_l2_select_queue,
631 .ndo_validate_addr = qeth_l2_validate_addr,
632 .ndo_set_rx_mode = qeth_l2_set_rx_mode,
633 .ndo_do_ioctl = qeth_do_ioctl,
634 .ndo_set_mac_address = qeth_l2_set_mac_address,
635 .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid,
636 .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid,
637 .ndo_tx_timeout = qeth_tx_timeout,
638 .ndo_fix_features = qeth_fix_features,
639 .ndo_set_features = qeth_set_features
642 static const struct net_device_ops qeth_osn_netdev_ops = {
643 .ndo_open = qeth_open,
644 .ndo_stop = qeth_stop,
645 .ndo_get_stats64 = qeth_get_stats64,
646 .ndo_start_xmit = qeth_l2_hard_start_xmit,
647 .ndo_validate_addr = eth_validate_addr,
648 .ndo_tx_timeout = qeth_tx_timeout,
651 static int qeth_l2_setup_netdev(struct qeth_card *card, bool carrier_ok)
656 card->dev->netdev_ops = &qeth_osn_netdev_ops;
657 card->dev->flags |= IFF_NOARP;
661 card->dev->needed_headroom = sizeof(struct qeth_hdr);
662 card->dev->netdev_ops = &qeth_l2_netdev_ops;
663 card->dev->priv_flags |= IFF_UNICAST_FLT;
666 card->dev->features |= NETIF_F_VLAN_CHALLENGED;
668 if (!IS_VM_NIC(card))
669 card->dev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER;
670 card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
673 if (IS_OSD(card) && !IS_VM_NIC(card)) {
674 card->dev->features |= NETIF_F_SG;
675 /* OSA 3S and earlier has no RX/TX support */
676 if (qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) {
677 card->dev->hw_features |= NETIF_F_IP_CSUM;
678 card->dev->vlan_features |= NETIF_F_IP_CSUM;
681 if (qeth_is_supported6(card, IPA_OUTBOUND_CHECKSUM_V6)) {
682 card->dev->hw_features |= NETIF_F_IPV6_CSUM;
683 card->dev->vlan_features |= NETIF_F_IPV6_CSUM;
685 if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM) ||
686 qeth_is_supported6(card, IPA_INBOUND_CHECKSUM_V6)) {
687 card->dev->hw_features |= NETIF_F_RXCSUM;
688 card->dev->vlan_features |= NETIF_F_RXCSUM;
690 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
691 card->dev->hw_features |= NETIF_F_TSO;
692 card->dev->vlan_features |= NETIF_F_TSO;
694 if (qeth_is_supported6(card, IPA_OUTBOUND_TSO)) {
695 card->dev->hw_features |= NETIF_F_TSO6;
696 card->dev->vlan_features |= NETIF_F_TSO6;
699 if (card->dev->hw_features & (NETIF_F_TSO | NETIF_F_TSO6)) {
700 card->dev->needed_headroom = sizeof(struct qeth_hdr_tso);
701 netif_set_gso_max_size(card->dev,
702 PAGE_SIZE * (QDIO_MAX_ELEMENTS_PER_BUFFER - 1));
706 netif_napi_add(card->dev, &card->napi, qeth_poll, QETH_NAPI_WEIGHT);
707 rc = register_netdev(card->dev);
708 if (!rc && carrier_ok)
709 netif_carrier_on(card->dev);
712 card->dev->netdev_ops = NULL;
716 static void qeth_l2_trace_features(struct qeth_card *card)
718 /* Set BridgePort features */
719 QETH_CARD_TEXT(card, 2, "featuSBP");
720 QETH_CARD_HEX(card, 2, &card->options.sbp.supported_funcs,
721 sizeof(card->options.sbp.supported_funcs));
722 /* VNIC Characteristics features */
723 QETH_CARD_TEXT(card, 2, "feaVNICC");
724 QETH_CARD_HEX(card, 2, &card->options.vnicc.sup_chars,
725 sizeof(card->options.vnicc.sup_chars));
728 static void qeth_l2_setup_bridgeport_attrs(struct qeth_card *card)
730 if (!card->options.sbp.reflect_promisc &&
731 card->options.sbp.role != QETH_SBP_ROLE_NONE) {
732 /* Conditional to avoid spurious error messages */
733 qeth_bridgeport_setrole(card, card->options.sbp.role);
734 /* Let the callback function refresh the stored role value. */
735 qeth_bridgeport_query_ports(card, &card->options.sbp.role,
738 if (card->options.sbp.hostnotification) {
739 if (qeth_bridgeport_an_set(card, 1))
740 card->options.sbp.hostnotification = 0;
742 qeth_bridgeport_an_set(card, 0);
746 static int qeth_l2_set_online(struct qeth_card *card)
748 struct ccwgroup_device *gdev = card->gdev;
749 struct net_device *dev = card->dev;
753 rc = qeth_core_hardsetup_card(card, &carrier_ok);
755 QETH_CARD_TEXT_(card, 2, "2err%04x", rc);
760 mutex_lock(&card->sbp_lock);
761 qeth_bridgeport_query_support(card);
762 if (card->options.sbp.supported_funcs) {
763 qeth_l2_setup_bridgeport_attrs(card);
764 dev_info(&card->gdev->dev,
765 "The device represents a Bridge Capable Port\n");
767 mutex_unlock(&card->sbp_lock);
769 qeth_l2_register_dev_addr(card);
771 /* for the rx_bcast characteristic, init VNICC after setmac */
772 qeth_l2_vnicc_init(card);
774 qeth_trace_features(card);
775 qeth_l2_trace_features(card);
777 qeth_print_status_message(card);
780 QETH_CARD_TEXT(card, 2, "softsetp");
782 card->state = CARD_STATE_SOFTSETUP;
784 qeth_set_allowed_threads(card, 0xffffffff, 0);
786 if (!qeth_netdev_is_registered(dev)) {
787 rc = qeth_l2_setup_netdev(card, carrier_ok);
793 netif_carrier_on(dev);
795 netif_carrier_off(dev);
797 netif_device_attach(dev);
798 qeth_enable_hw_features(dev);
800 if (card->info.open_when_online) {
801 card->info.open_when_online = 0;
806 /* let user_space know that device is online */
807 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
811 qeth_l2_stop_card(card);
812 qeth_stop_channel(&card->data);
813 qeth_stop_channel(&card->write);
814 qeth_stop_channel(&card->read);
815 qdio_free(CARD_DDEV(card));
819 static void qeth_l2_set_offline(struct qeth_card *card)
821 qeth_l2_stop_card(card);
824 static int __init qeth_l2_init(void)
826 pr_info("register layer 2 discipline\n");
830 static void __exit qeth_l2_exit(void)
832 pr_info("unregister layer 2 discipline\n");
835 /* Returns zero if the command is successfully "consumed" */
836 static int qeth_l2_control_event(struct qeth_card *card,
837 struct qeth_ipa_cmd *cmd)
839 switch (cmd->hdr.command) {
840 case IPA_CMD_SETBRIDGEPORT_OSA:
841 case IPA_CMD_SETBRIDGEPORT_IQD:
842 if (cmd->data.sbp.hdr.command_code ==
843 IPA_SBP_BRIDGE_PORT_STATE_CHANGE) {
844 qeth_bridge_state_change(card, cmd);
848 case IPA_CMD_ADDRESS_CHANGE_NOTIF:
849 qeth_bridge_host_event(card, cmd);
856 struct qeth_discipline qeth_l2_discipline = {
857 .devtype = &qeth_l2_devtype,
858 .setup = qeth_l2_probe_device,
859 .remove = qeth_l2_remove_device,
860 .set_online = qeth_l2_set_online,
861 .set_offline = qeth_l2_set_offline,
863 .control_event_handler = qeth_l2_control_event,
865 EXPORT_SYMBOL_GPL(qeth_l2_discipline);
867 static void qeth_osn_assist_cb(struct qeth_card *card,
868 struct qeth_cmd_buffer *iob,
869 unsigned int data_length)
871 qeth_notify_cmd(iob, 0);
875 int qeth_osn_assist(struct net_device *dev, void *data, int data_len)
877 struct qeth_cmd_buffer *iob;
878 struct qeth_card *card;
887 QETH_CARD_TEXT(card, 2, "osnsdmc");
888 if (!qeth_card_hw_is_reachable(card))
891 iob = qeth_alloc_cmd(&card->write, IPA_PDU_HEADER_SIZE + data_len, 1,
896 qeth_prepare_ipa_cmd(card, iob, (u16) data_len, NULL);
898 memcpy(__ipa_cmd(iob), data, data_len);
899 iob->callback = qeth_osn_assist_cb;
900 return qeth_send_ipa_cmd(card, iob, NULL, NULL);
902 EXPORT_SYMBOL(qeth_osn_assist);
904 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev,
905 int (*assist_cb)(struct net_device *, void *),
906 int (*data_cb)(struct sk_buff *))
908 struct qeth_card *card;
912 memcpy(&devno, read_dev_no, 2);
913 sprintf(bus_id, "0.0.%04x", devno);
914 card = qeth_get_card_by_busid(bus_id);
915 if (!card || !IS_OSN(card))
919 QETH_CARD_TEXT(card, 2, "osnreg");
920 if ((assist_cb == NULL) || (data_cb == NULL))
922 card->osn_info.assist_cb = assist_cb;
923 card->osn_info.data_cb = data_cb;
926 EXPORT_SYMBOL(qeth_osn_register);
928 void qeth_osn_deregister(struct net_device *dev)
930 struct qeth_card *card;
937 QETH_CARD_TEXT(card, 2, "osndereg");
938 card->osn_info.assist_cb = NULL;
939 card->osn_info.data_cb = NULL;
942 EXPORT_SYMBOL(qeth_osn_deregister);
944 /* SETBRIDGEPORT support, async notifications */
946 enum qeth_an_event_type {anev_reg_unreg, anev_abort, anev_reset};
949 * qeth_bridge_emit_host_event() - bridgeport address change notification
950 * @card: qeth_card structure pointer, for udev events.
951 * @evtype: "normal" register/unregister, or abort, or reset. For abort
952 * and reset token and addr_lnid are unused and may be NULL.
953 * @code: event bitmask: high order bit 0x80 value 1 means removal of an
954 * object, 0 - addition of an object.
955 * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC.
956 * @token: "network token" structure identifying physical address of the port.
957 * @addr_lnid: pointer to structure with MAC address and VLAN ID.
959 * This function is called when registrations and deregistrations are
960 * reported by the hardware, and also when notifications are enabled -
961 * for all currently registered addresses.
963 static void qeth_bridge_emit_host_event(struct qeth_card *card,
964 enum qeth_an_event_type evtype,
965 u8 code, struct net_if_token *token, struct mac_addr_lnid *addr_lnid)
973 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=%s",
974 (code & IPA_ADDR_CHANGE_CODE_REMOVAL)
975 ? "deregister" : "register");
976 env[i] = str[i]; i++;
977 if (code & IPA_ADDR_CHANGE_CODE_VLANID) {
978 snprintf(str[i], sizeof(str[i]), "VLAN=%d",
980 env[i] = str[i]; i++;
982 if (code & IPA_ADDR_CHANGE_CODE_MACADDR) {
983 snprintf(str[i], sizeof(str[i]), "MAC=%pM",
985 env[i] = str[i]; i++;
987 snprintf(str[i], sizeof(str[i]), "NTOK_BUSID=%x.%x.%04x",
988 token->cssid, token->ssid, token->devnum);
989 env[i] = str[i]; i++;
990 snprintf(str[i], sizeof(str[i]), "NTOK_IID=%02x", token->iid);
991 env[i] = str[i]; i++;
992 snprintf(str[i], sizeof(str[i]), "NTOK_CHPID=%02x",
994 env[i] = str[i]; i++;
995 snprintf(str[i], sizeof(str[i]), "NTOK_CHID=%04x", token->chid);
996 env[i] = str[i]; i++;
999 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=abort");
1000 env[i] = str[i]; i++;
1003 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=reset");
1004 env[i] = str[i]; i++;
1008 kobject_uevent_env(&card->gdev->dev.kobj, KOBJ_CHANGE, env);
1011 struct qeth_bridge_state_data {
1012 struct work_struct worker;
1013 struct qeth_card *card;
1014 struct qeth_sbp_state_change qports;
1017 static void qeth_bridge_state_change_worker(struct work_struct *work)
1019 struct qeth_bridge_state_data *data =
1020 container_of(work, struct qeth_bridge_state_data, worker);
1021 /* We are only interested in the first entry - local port */
1022 struct qeth_sbp_port_entry *entry = &data->qports.entry[0];
1023 char env_locrem[32];
1033 /* Role should not change by itself, but if it did, */
1034 /* information from the hardware is authoritative. */
1035 mutex_lock(&data->card->sbp_lock);
1036 data->card->options.sbp.role = entry->role;
1037 mutex_unlock(&data->card->sbp_lock);
1039 snprintf(env_locrem, sizeof(env_locrem), "BRIDGEPORT=statechange");
1040 snprintf(env_role, sizeof(env_role), "ROLE=%s",
1041 (entry->role == QETH_SBP_ROLE_NONE) ? "none" :
1042 (entry->role == QETH_SBP_ROLE_PRIMARY) ? "primary" :
1043 (entry->role == QETH_SBP_ROLE_SECONDARY) ? "secondary" :
1045 snprintf(env_state, sizeof(env_state), "STATE=%s",
1046 (entry->state == QETH_SBP_STATE_INACTIVE) ? "inactive" :
1047 (entry->state == QETH_SBP_STATE_STANDBY) ? "standby" :
1048 (entry->state == QETH_SBP_STATE_ACTIVE) ? "active" :
1050 kobject_uevent_env(&data->card->gdev->dev.kobj,
1055 static void qeth_bridge_state_change(struct qeth_card *card,
1056 struct qeth_ipa_cmd *cmd)
1058 struct qeth_sbp_state_change *qports =
1059 &cmd->data.sbp.data.state_change;
1060 struct qeth_bridge_state_data *data;
1063 QETH_CARD_TEXT(card, 2, "brstchng");
1064 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
1065 QETH_CARD_TEXT_(card, 2, "BPsz%04x", qports->entry_length);
1068 extrasize = sizeof(struct qeth_sbp_port_entry) * qports->num_entries;
1069 data = kzalloc(sizeof(struct qeth_bridge_state_data) + extrasize,
1072 QETH_CARD_TEXT(card, 2, "BPSalloc");
1075 INIT_WORK(&data->worker, qeth_bridge_state_change_worker);
1077 memcpy(&data->qports, qports,
1078 sizeof(struct qeth_sbp_state_change) + extrasize);
1079 queue_work(card->event_wq, &data->worker);
1082 struct qeth_bridge_host_data {
1083 struct work_struct worker;
1084 struct qeth_card *card;
1085 struct qeth_ipacmd_addr_change hostevs;
1088 static void qeth_bridge_host_event_worker(struct work_struct *work)
1090 struct qeth_bridge_host_data *data =
1091 container_of(work, struct qeth_bridge_host_data, worker);
1094 if (data->hostevs.lost_event_mask) {
1095 dev_info(&data->card->gdev->dev,
1096 "Address notification from the Bridge Port stopped %s (%s)\n",
1097 data->card->dev->name,
1098 (data->hostevs.lost_event_mask == 0x01)
1100 : (data->hostevs.lost_event_mask == 0x02)
1101 ? "Bridge port state change"
1102 : "Unknown reason");
1103 mutex_lock(&data->card->sbp_lock);
1104 data->card->options.sbp.hostnotification = 0;
1105 mutex_unlock(&data->card->sbp_lock);
1106 qeth_bridge_emit_host_event(data->card, anev_abort,
1109 for (i = 0; i < data->hostevs.num_entries; i++) {
1110 struct qeth_ipacmd_addr_change_entry *entry =
1111 &data->hostevs.entry[i];
1112 qeth_bridge_emit_host_event(data->card,
1115 &entry->token, &entry->addr_lnid);
1120 static void qeth_bridge_host_event(struct qeth_card *card,
1121 struct qeth_ipa_cmd *cmd)
1123 struct qeth_ipacmd_addr_change *hostevs =
1124 &cmd->data.addrchange;
1125 struct qeth_bridge_host_data *data;
1128 QETH_CARD_TEXT(card, 2, "brhostev");
1129 if (cmd->hdr.return_code != 0x0000) {
1130 if (cmd->hdr.return_code == 0x0010) {
1131 if (hostevs->lost_event_mask == 0x00)
1132 hostevs->lost_event_mask = 0xff;
1134 QETH_CARD_TEXT_(card, 2, "BPHe%04x",
1135 cmd->hdr.return_code);
1139 extrasize = sizeof(struct qeth_ipacmd_addr_change_entry) *
1140 hostevs->num_entries;
1141 data = kzalloc(sizeof(struct qeth_bridge_host_data) + extrasize,
1144 QETH_CARD_TEXT(card, 2, "BPHalloc");
1147 INIT_WORK(&data->worker, qeth_bridge_host_event_worker);
1149 memcpy(&data->hostevs, hostevs,
1150 sizeof(struct qeth_ipacmd_addr_change) + extrasize);
1151 queue_work(card->event_wq, &data->worker);
1154 /* SETBRIDGEPORT support; sending commands */
1156 struct _qeth_sbp_cbctl {
1160 enum qeth_sbp_roles *role;
1161 enum qeth_sbp_states *state;
1166 static int qeth_bridgeport_makerc(struct qeth_card *card,
1167 struct qeth_ipa_cmd *cmd)
1169 struct qeth_ipacmd_setbridgeport *sbp = &cmd->data.sbp;
1170 enum qeth_ipa_sbp_cmd setcmd = sbp->hdr.command_code;
1171 u16 ipa_rc = cmd->hdr.return_code;
1172 u16 sbp_rc = sbp->hdr.return_code;
1175 if (ipa_rc == IPA_RC_SUCCESS && sbp_rc == IPA_RC_SUCCESS)
1178 if ((IS_IQD(card) && ipa_rc == IPA_RC_SUCCESS) ||
1179 (!IS_IQD(card) && ipa_rc == sbp_rc)) {
1181 case IPA_RC_SUCCESS:
1184 case IPA_RC_L2_UNSUPPORTED_CMD:
1185 case IPA_RC_UNSUPPORTED_COMMAND:
1188 case IPA_RC_SBP_OSA_NOT_CONFIGURED:
1189 case IPA_RC_SBP_IQD_NOT_CONFIGURED:
1190 rc = -ENODEV; /* maybe not the best code here? */
1191 dev_err(&card->gdev->dev,
1192 "The device is not configured as a Bridge Port\n");
1194 case IPA_RC_SBP_OSA_OS_MISMATCH:
1195 case IPA_RC_SBP_IQD_OS_MISMATCH:
1197 dev_err(&card->gdev->dev,
1198 "A Bridge Port is already configured by a different operating system\n");
1200 case IPA_RC_SBP_OSA_ANO_DEV_PRIMARY:
1201 case IPA_RC_SBP_IQD_ANO_DEV_PRIMARY:
1203 case IPA_SBP_SET_PRIMARY_BRIDGE_PORT:
1205 dev_err(&card->gdev->dev,
1206 "The LAN already has a primary Bridge Port\n");
1208 case IPA_SBP_SET_SECONDARY_BRIDGE_PORT:
1210 dev_err(&card->gdev->dev,
1211 "The device is already a primary Bridge Port\n");
1217 case IPA_RC_SBP_OSA_CURRENT_SECOND:
1218 case IPA_RC_SBP_IQD_CURRENT_SECOND:
1220 dev_err(&card->gdev->dev,
1221 "The device is already a secondary Bridge Port\n");
1223 case IPA_RC_SBP_OSA_LIMIT_SECOND:
1224 case IPA_RC_SBP_IQD_LIMIT_SECOND:
1226 dev_err(&card->gdev->dev,
1227 "The LAN cannot have more secondary Bridge Ports\n");
1229 case IPA_RC_SBP_OSA_CURRENT_PRIMARY:
1230 case IPA_RC_SBP_IQD_CURRENT_PRIMARY:
1232 dev_err(&card->gdev->dev,
1233 "The device is already a primary Bridge Port\n");
1235 case IPA_RC_SBP_OSA_NOT_AUTHD_BY_ZMAN:
1236 case IPA_RC_SBP_IQD_NOT_AUTHD_BY_ZMAN:
1238 dev_err(&card->gdev->dev,
1239 "The device is not authorized to be a Bridge Port\n");
1246 case IPA_RC_NOTSUPP:
1249 case IPA_RC_UNSUPPORTED_COMMAND:
1258 QETH_CARD_TEXT_(card, 2, "SBPi%04x", ipa_rc);
1259 QETH_CARD_TEXT_(card, 2, "SBPc%04x", sbp_rc);
1264 static struct qeth_cmd_buffer *qeth_sbp_build_cmd(struct qeth_card *card,
1265 enum qeth_ipa_sbp_cmd sbp_cmd,
1266 unsigned int data_length)
1268 enum qeth_ipa_cmds ipa_cmd = IS_IQD(card) ? IPA_CMD_SETBRIDGEPORT_IQD :
1269 IPA_CMD_SETBRIDGEPORT_OSA;
1270 struct qeth_ipacmd_sbp_hdr *hdr;
1271 struct qeth_cmd_buffer *iob;
1273 iob = qeth_ipa_alloc_cmd(card, ipa_cmd, QETH_PROT_NONE,
1275 offsetof(struct qeth_ipacmd_setbridgeport,
1280 hdr = &__ipa_cmd(iob)->data.sbp.hdr;
1281 hdr->cmdlength = sizeof(*hdr) + data_length;
1282 hdr->command_code = sbp_cmd;
1283 hdr->used_total = 1;
1288 static int qeth_bridgeport_query_support_cb(struct qeth_card *card,
1289 struct qeth_reply *reply, unsigned long data)
1291 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1292 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1295 QETH_CARD_TEXT(card, 2, "brqsupcb");
1296 rc = qeth_bridgeport_makerc(card, cmd);
1300 cbctl->data.supported =
1301 cmd->data.sbp.data.query_cmds_supp.supported_cmds;
1306 * qeth_bridgeport_query_support() - store bitmask of supported subfunctions.
1307 * @card: qeth_card structure pointer.
1309 * Sets bitmask of supported setbridgeport subfunctions in the qeth_card
1310 * strucutre: card->options.sbp.supported_funcs.
1312 static void qeth_bridgeport_query_support(struct qeth_card *card)
1314 struct qeth_cmd_buffer *iob;
1315 struct _qeth_sbp_cbctl cbctl;
1317 QETH_CARD_TEXT(card, 2, "brqsuppo");
1318 iob = qeth_sbp_build_cmd(card, IPA_SBP_QUERY_COMMANDS_SUPPORTED,
1319 SBP_DATA_SIZEOF(query_cmds_supp));
1323 if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb,
1325 card->options.sbp.role = QETH_SBP_ROLE_NONE;
1326 card->options.sbp.supported_funcs = 0;
1329 card->options.sbp.supported_funcs = cbctl.data.supported;
1332 static int qeth_bridgeport_query_ports_cb(struct qeth_card *card,
1333 struct qeth_reply *reply, unsigned long data)
1335 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1336 struct qeth_sbp_query_ports *qports = &cmd->data.sbp.data.query_ports;
1337 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1340 QETH_CARD_TEXT(card, 2, "brqprtcb");
1341 rc = qeth_bridgeport_makerc(card, cmd);
1345 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
1346 QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length);
1349 /* first entry contains the state of the local port */
1350 if (qports->num_entries > 0) {
1351 if (cbctl->data.qports.role)
1352 *cbctl->data.qports.role = qports->entry[0].role;
1353 if (cbctl->data.qports.state)
1354 *cbctl->data.qports.state = qports->entry[0].state;
1360 * qeth_bridgeport_query_ports() - query local bridgeport status.
1361 * @card: qeth_card structure pointer.
1362 * @role: Role of the port: 0-none, 1-primary, 2-secondary.
1363 * @state: State of the port: 0-inactive, 1-standby, 2-active.
1365 * Returns negative errno-compatible error indication or 0 on success.
1367 * 'role' and 'state' are not updated in case of hardware operation failure.
1369 int qeth_bridgeport_query_ports(struct qeth_card *card,
1370 enum qeth_sbp_roles *role, enum qeth_sbp_states *state)
1372 struct qeth_cmd_buffer *iob;
1373 struct _qeth_sbp_cbctl cbctl = {
1382 QETH_CARD_TEXT(card, 2, "brqports");
1383 if (!(card->options.sbp.supported_funcs & IPA_SBP_QUERY_BRIDGE_PORTS))
1385 iob = qeth_sbp_build_cmd(card, IPA_SBP_QUERY_BRIDGE_PORTS, 0);
1389 return qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb,
1393 static int qeth_bridgeport_set_cb(struct qeth_card *card,
1394 struct qeth_reply *reply, unsigned long data)
1396 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data;
1398 QETH_CARD_TEXT(card, 2, "brsetrcb");
1399 return qeth_bridgeport_makerc(card, cmd);
1403 * qeth_bridgeport_setrole() - Assign primary role to the port.
1404 * @card: qeth_card structure pointer.
1405 * @role: Role to assign.
1407 * Returns negative errno-compatible error indication or 0 on success.
1409 int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role)
1411 struct qeth_cmd_buffer *iob;
1412 enum qeth_ipa_sbp_cmd setcmd;
1413 unsigned int cmdlength = 0;
1415 QETH_CARD_TEXT(card, 2, "brsetrol");
1417 case QETH_SBP_ROLE_NONE:
1418 setcmd = IPA_SBP_RESET_BRIDGE_PORT_ROLE;
1420 case QETH_SBP_ROLE_PRIMARY:
1421 setcmd = IPA_SBP_SET_PRIMARY_BRIDGE_PORT;
1422 cmdlength = SBP_DATA_SIZEOF(set_primary);
1424 case QETH_SBP_ROLE_SECONDARY:
1425 setcmd = IPA_SBP_SET_SECONDARY_BRIDGE_PORT;
1430 if (!(card->options.sbp.supported_funcs & setcmd))
1432 iob = qeth_sbp_build_cmd(card, setcmd, cmdlength);
1436 return qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb, NULL);
1440 * qeth_anset_makerc() - derive "traditional" error from hardware codes.
1441 * @card: qeth_card structure pointer, for debug messages.
1443 * Returns negative errno-compatible error indication or 0 on success.
1445 static int qeth_anset_makerc(struct qeth_card *card, int pnso_rc, u16 response)
1458 dev_err(&card->gdev->dev,
1459 "Setting address notification failed\n");
1471 QETH_CARD_TEXT_(card, 2, "SBPp%04x", pnso_rc);
1472 QETH_CARD_TEXT_(card, 2, "SBPr%04x", response);
1477 static void qeth_bridgeport_an_set_cb(void *priv,
1478 enum qdio_brinfo_entry_type type, void *entry)
1480 struct qeth_card *card = (struct qeth_card *)priv;
1481 struct qdio_brinfo_entry_l2 *l2entry;
1484 if (type != l2_addr_lnid) {
1489 l2entry = (struct qdio_brinfo_entry_l2 *)entry;
1490 code = IPA_ADDR_CHANGE_CODE_MACADDR;
1491 if (l2entry->addr_lnid.lnid < VLAN_N_VID)
1492 code |= IPA_ADDR_CHANGE_CODE_VLANID;
1493 qeth_bridge_emit_host_event(card, anev_reg_unreg, code,
1494 (struct net_if_token *)&l2entry->nit,
1495 (struct mac_addr_lnid *)&l2entry->addr_lnid);
1499 * qeth_bridgeport_an_set() - Enable or disable bridgeport address notification
1500 * @card: qeth_card structure pointer.
1501 * @enable: 0 - disable, non-zero - enable notifications
1503 * Returns negative errno-compatible error indication or 0 on success.
1505 * On enable, emits a series of address notifications udev events for all
1506 * currently registered hosts.
1508 int qeth_bridgeport_an_set(struct qeth_card *card, int enable)
1512 struct ccw_device *ddev;
1513 struct subchannel_id schid;
1517 if (!card->options.sbp.supported_funcs)
1519 ddev = CARD_DDEV(card);
1520 ccw_device_get_schid(ddev, &schid);
1523 qeth_bridge_emit_host_event(card, anev_reset, 0, NULL, NULL);
1524 rc = qdio_pnso_brinfo(schid, 1, &response,
1525 qeth_bridgeport_an_set_cb, card);
1527 rc = qdio_pnso_brinfo(schid, 0, &response, NULL, NULL);
1528 return qeth_anset_makerc(card, rc, response);
1531 static bool qeth_bridgeport_is_in_use(struct qeth_card *card)
1533 return (card->options.sbp.role || card->options.sbp.reflect_promisc ||
1534 card->options.sbp.hostnotification);
1537 /* VNIC Characteristics support */
1539 /* handle VNICC IPA command return codes; convert to error codes */
1540 static int qeth_l2_vnicc_makerc(struct qeth_card *card, u16 ipa_rc)
1545 case IPA_RC_SUCCESS:
1547 case IPA_RC_L2_UNSUPPORTED_CMD:
1548 case IPA_RC_NOTSUPP:
1551 case IPA_RC_VNICC_OOSEQ:
1554 case IPA_RC_VNICC_VNICBP:
1557 case IPA_RC_L2_ADDR_TABLE_FULL:
1560 case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP:
1567 QETH_CARD_TEXT_(card, 2, "err%04x", ipa_rc);
1571 /* generic VNICC request call back control */
1572 struct _qeth_l2_vnicc_request_cbctl {
1581 /* generic VNICC request call back */
1582 static int qeth_l2_vnicc_request_cb(struct qeth_card *card,
1583 struct qeth_reply *reply,
1586 struct _qeth_l2_vnicc_request_cbctl *cbctl =
1587 (struct _qeth_l2_vnicc_request_cbctl *) reply->param;
1588 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1589 struct qeth_ipacmd_vnicc *rep = &cmd->data.vnicc;
1590 u32 sub_cmd = cmd->data.vnicc.hdr.sub_command;
1592 QETH_CARD_TEXT(card, 2, "vniccrcb");
1593 if (cmd->hdr.return_code)
1594 return qeth_l2_vnicc_makerc(card, cmd->hdr.return_code);
1595 /* return results to caller */
1596 card->options.vnicc.sup_chars = rep->vnicc_cmds.supported;
1597 card->options.vnicc.cur_chars = rep->vnicc_cmds.enabled;
1599 if (sub_cmd == IPA_VNICC_QUERY_CMDS)
1600 *cbctl->result.sup_cmds = rep->data.query_cmds.sup_cmds;
1601 else if (sub_cmd == IPA_VNICC_GET_TIMEOUT)
1602 *cbctl->result.timeout = rep->data.getset_timeout.timeout;
1607 static struct qeth_cmd_buffer *qeth_l2_vnicc_build_cmd(struct qeth_card *card,
1609 unsigned int data_length)
1611 struct qeth_ipacmd_vnicc_hdr *hdr;
1612 struct qeth_cmd_buffer *iob;
1614 iob = qeth_ipa_alloc_cmd(card, IPA_CMD_VNICC, QETH_PROT_NONE,
1616 offsetof(struct qeth_ipacmd_vnicc, data));
1620 hdr = &__ipa_cmd(iob)->data.vnicc.hdr;
1621 hdr->data_length = sizeof(*hdr) + data_length;
1622 hdr->sub_command = vnicc_cmd;
1626 /* VNICC query VNIC characteristics request */
1627 static int qeth_l2_vnicc_query_chars(struct qeth_card *card)
1629 struct qeth_cmd_buffer *iob;
1631 QETH_CARD_TEXT(card, 2, "vniccqch");
1632 iob = qeth_l2_vnicc_build_cmd(card, IPA_VNICC_QUERY_CHARS, 0);
1636 return qeth_send_ipa_cmd(card, iob, qeth_l2_vnicc_request_cb, NULL);
1639 /* VNICC query sub commands request */
1640 static int qeth_l2_vnicc_query_cmds(struct qeth_card *card, u32 vnic_char,
1643 struct _qeth_l2_vnicc_request_cbctl cbctl;
1644 struct qeth_cmd_buffer *iob;
1646 QETH_CARD_TEXT(card, 2, "vniccqcm");
1647 iob = qeth_l2_vnicc_build_cmd(card, IPA_VNICC_QUERY_CMDS,
1648 VNICC_DATA_SIZEOF(query_cmds));
1652 __ipa_cmd(iob)->data.vnicc.data.query_cmds.vnic_char = vnic_char;
1654 /* prepare callback control */
1655 cbctl.result.sup_cmds = sup_cmds;
1657 return qeth_send_ipa_cmd(card, iob, qeth_l2_vnicc_request_cb, &cbctl);
1660 /* VNICC enable/disable characteristic request */
1661 static int qeth_l2_vnicc_set_char(struct qeth_card *card, u32 vnic_char,
1664 struct qeth_cmd_buffer *iob;
1666 QETH_CARD_TEXT(card, 2, "vniccedc");
1667 iob = qeth_l2_vnicc_build_cmd(card, cmd, VNICC_DATA_SIZEOF(set_char));
1671 __ipa_cmd(iob)->data.vnicc.data.set_char.vnic_char = vnic_char;
1673 return qeth_send_ipa_cmd(card, iob, qeth_l2_vnicc_request_cb, NULL);
1676 /* VNICC get/set timeout for characteristic request */
1677 static int qeth_l2_vnicc_getset_timeout(struct qeth_card *card, u32 vnicc,
1678 u32 cmd, u32 *timeout)
1680 struct qeth_vnicc_getset_timeout *getset_timeout;
1681 struct _qeth_l2_vnicc_request_cbctl cbctl;
1682 struct qeth_cmd_buffer *iob;
1684 QETH_CARD_TEXT(card, 2, "vniccgst");
1685 iob = qeth_l2_vnicc_build_cmd(card, cmd,
1686 VNICC_DATA_SIZEOF(getset_timeout));
1690 getset_timeout = &__ipa_cmd(iob)->data.vnicc.data.getset_timeout;
1691 getset_timeout->vnic_char = vnicc;
1693 if (cmd == IPA_VNICC_SET_TIMEOUT)
1694 getset_timeout->timeout = *timeout;
1696 /* prepare callback control */
1697 if (cmd == IPA_VNICC_GET_TIMEOUT)
1698 cbctl.result.timeout = timeout;
1700 return qeth_send_ipa_cmd(card, iob, qeth_l2_vnicc_request_cb, &cbctl);
1703 /* set current VNICC flag state; called from sysfs store function */
1704 int qeth_l2_vnicc_set_state(struct qeth_card *card, u32 vnicc, bool state)
1709 QETH_CARD_TEXT(card, 2, "vniccsch");
1711 /* check if characteristic and enable/disable are supported */
1712 if (!(card->options.vnicc.sup_chars & vnicc) ||
1713 !(card->options.vnicc.set_char_sup & vnicc))
1716 if (qeth_bridgeport_is_in_use(card))
1719 /* set enable/disable command and store wanted characteristic */
1721 cmd = IPA_VNICC_ENABLE;
1722 card->options.vnicc.wanted_chars |= vnicc;
1724 cmd = IPA_VNICC_DISABLE;
1725 card->options.vnicc.wanted_chars &= ~vnicc;
1728 /* do we need to do anything? */
1729 if (card->options.vnicc.cur_chars == card->options.vnicc.wanted_chars)
1732 /* if card is not ready, simply stop here */
1733 if (!qeth_card_hw_is_reachable(card)) {
1735 card->options.vnicc.cur_chars |= vnicc;
1737 card->options.vnicc.cur_chars &= ~vnicc;
1741 rc = qeth_l2_vnicc_set_char(card, vnicc, cmd);
1743 card->options.vnicc.wanted_chars =
1744 card->options.vnicc.cur_chars;
1746 /* successful online VNICC change; handle special cases */
1747 if (state && vnicc == QETH_VNICC_RX_BCAST)
1748 card->options.vnicc.rx_bcast_enabled = true;
1749 if (!state && vnicc == QETH_VNICC_LEARNING)
1750 qeth_l2_vnicc_recover_timeout(card, vnicc,
1751 &card->options.vnicc.learning_timeout);
1757 /* get current VNICC flag state; called from sysfs show function */
1758 int qeth_l2_vnicc_get_state(struct qeth_card *card, u32 vnicc, bool *state)
1762 QETH_CARD_TEXT(card, 2, "vniccgch");
1764 /* check if characteristic is supported */
1765 if (!(card->options.vnicc.sup_chars & vnicc))
1768 if (qeth_bridgeport_is_in_use(card))
1771 /* if card is ready, query current VNICC state */
1772 if (qeth_card_hw_is_reachable(card))
1773 rc = qeth_l2_vnicc_query_chars(card);
1775 *state = (card->options.vnicc.cur_chars & vnicc) ? true : false;
1779 /* set VNICC timeout; called from sysfs store function. Currently, only learning
1782 int qeth_l2_vnicc_set_timeout(struct qeth_card *card, u32 timeout)
1786 QETH_CARD_TEXT(card, 2, "vniccsto");
1788 /* check if characteristic and set_timeout are supported */
1789 if (!(card->options.vnicc.sup_chars & QETH_VNICC_LEARNING) ||
1790 !(card->options.vnicc.getset_timeout_sup & QETH_VNICC_LEARNING))
1793 if (qeth_bridgeport_is_in_use(card))
1796 /* do we need to do anything? */
1797 if (card->options.vnicc.learning_timeout == timeout)
1800 /* if card is not ready, simply store the value internally and return */
1801 if (!qeth_card_hw_is_reachable(card)) {
1802 card->options.vnicc.learning_timeout = timeout;
1806 /* send timeout value to card; if successful, store value internally */
1807 rc = qeth_l2_vnicc_getset_timeout(card, QETH_VNICC_LEARNING,
1808 IPA_VNICC_SET_TIMEOUT, &timeout);
1810 card->options.vnicc.learning_timeout = timeout;
1815 /* get current VNICC timeout; called from sysfs show function. Currently, only
1816 * learning supports timeout
1818 int qeth_l2_vnicc_get_timeout(struct qeth_card *card, u32 *timeout)
1822 QETH_CARD_TEXT(card, 2, "vniccgto");
1824 /* check if characteristic and get_timeout are supported */
1825 if (!(card->options.vnicc.sup_chars & QETH_VNICC_LEARNING) ||
1826 !(card->options.vnicc.getset_timeout_sup & QETH_VNICC_LEARNING))
1829 if (qeth_bridgeport_is_in_use(card))
1832 /* if card is ready, get timeout. Otherwise, just return stored value */
1833 *timeout = card->options.vnicc.learning_timeout;
1834 if (qeth_card_hw_is_reachable(card))
1835 rc = qeth_l2_vnicc_getset_timeout(card, QETH_VNICC_LEARNING,
1836 IPA_VNICC_GET_TIMEOUT,
1842 /* check if VNICC is currently enabled */
1843 bool qeth_l2_vnicc_is_in_use(struct qeth_card *card)
1845 if (!card->options.vnicc.sup_chars)
1847 /* default values are only OK if rx_bcast was not enabled by user
1848 * or the card is offline.
1850 if (card->options.vnicc.cur_chars == QETH_VNICC_DEFAULT) {
1851 if (!card->options.vnicc.rx_bcast_enabled ||
1852 !qeth_card_hw_is_reachable(card))
1858 /* recover user timeout setting */
1859 static bool qeth_l2_vnicc_recover_timeout(struct qeth_card *card, u32 vnicc,
1862 if (card->options.vnicc.sup_chars & vnicc &&
1863 card->options.vnicc.getset_timeout_sup & vnicc &&
1864 !qeth_l2_vnicc_getset_timeout(card, vnicc, IPA_VNICC_SET_TIMEOUT,
1867 *timeout = QETH_VNICC_DEFAULT_TIMEOUT;
1871 /* recover user characteristic setting */
1872 static bool qeth_l2_vnicc_recover_char(struct qeth_card *card, u32 vnicc,
1875 u32 cmd = enable ? IPA_VNICC_ENABLE : IPA_VNICC_DISABLE;
1877 if (card->options.vnicc.sup_chars & vnicc &&
1878 card->options.vnicc.set_char_sup & vnicc &&
1879 !qeth_l2_vnicc_set_char(card, vnicc, cmd))
1881 card->options.vnicc.wanted_chars &= ~vnicc;
1882 card->options.vnicc.wanted_chars |= QETH_VNICC_DEFAULT & vnicc;
1886 /* (re-)initialize VNICC */
1887 static void qeth_l2_vnicc_init(struct qeth_card *card)
1889 u32 *timeout = &card->options.vnicc.learning_timeout;
1890 bool enable, error = false;
1891 unsigned int chars_len, i;
1892 unsigned long chars_tmp;
1893 u32 sup_cmds, vnicc;
1895 QETH_CARD_TEXT(card, 2, "vniccini");
1896 /* reset rx_bcast */
1897 card->options.vnicc.rx_bcast_enabled = 0;
1898 /* initial query and storage of VNIC characteristics */
1899 if (qeth_l2_vnicc_query_chars(card)) {
1900 if (card->options.vnicc.wanted_chars != QETH_VNICC_DEFAULT ||
1901 *timeout != QETH_VNICC_DEFAULT_TIMEOUT)
1902 dev_err(&card->gdev->dev, "Configuring the VNIC characteristics failed\n");
1903 /* fail quietly if user didn't change the default config */
1904 card->options.vnicc.sup_chars = 0;
1905 card->options.vnicc.cur_chars = 0;
1906 card->options.vnicc.wanted_chars = QETH_VNICC_DEFAULT;
1909 /* get supported commands for each supported characteristic */
1910 chars_tmp = card->options.vnicc.sup_chars;
1911 chars_len = sizeof(card->options.vnicc.sup_chars) * BITS_PER_BYTE;
1912 for_each_set_bit(i, &chars_tmp, chars_len) {
1914 if (qeth_l2_vnicc_query_cmds(card, vnicc, &sup_cmds)) {
1918 if ((sup_cmds & IPA_VNICC_SET_TIMEOUT) &&
1919 (sup_cmds & IPA_VNICC_GET_TIMEOUT))
1920 card->options.vnicc.getset_timeout_sup |= vnicc;
1922 card->options.vnicc.getset_timeout_sup &= ~vnicc;
1923 if ((sup_cmds & IPA_VNICC_ENABLE) &&
1924 (sup_cmds & IPA_VNICC_DISABLE))
1925 card->options.vnicc.set_char_sup |= vnicc;
1927 card->options.vnicc.set_char_sup &= ~vnicc;
1929 /* enforce assumed default values and recover settings, if changed */
1930 error |= qeth_l2_vnicc_recover_timeout(card, QETH_VNICC_LEARNING,
1932 /* Change chars, if necessary */
1933 chars_tmp = card->options.vnicc.wanted_chars ^
1934 card->options.vnicc.cur_chars;
1935 chars_len = sizeof(card->options.vnicc.wanted_chars) * BITS_PER_BYTE;
1936 for_each_set_bit(i, &chars_tmp, chars_len) {
1938 enable = card->options.vnicc.wanted_chars & vnicc;
1939 error |= qeth_l2_vnicc_recover_char(card, vnicc, enable);
1942 dev_err(&card->gdev->dev, "Configuring the VNIC characteristics failed\n");
1945 /* configure default values of VNIC characteristics */
1946 static void qeth_l2_vnicc_set_defaults(struct qeth_card *card)
1948 /* characteristics values */
1949 card->options.vnicc.sup_chars = QETH_VNICC_ALL;
1950 card->options.vnicc.cur_chars = QETH_VNICC_DEFAULT;
1951 card->options.vnicc.learning_timeout = QETH_VNICC_DEFAULT_TIMEOUT;
1952 /* supported commands */
1953 card->options.vnicc.set_char_sup = QETH_VNICC_ALL;
1954 card->options.vnicc.getset_timeout_sup = QETH_VNICC_LEARNING;
1955 /* settings wanted by users */
1956 card->options.vnicc.wanted_chars = QETH_VNICC_DEFAULT;
1959 module_init(qeth_l2_init);
1960 module_exit(qeth_l2_exit);
1961 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
1962 MODULE_DESCRIPTION("qeth layer 2 discipline");
1963 MODULE_LICENSE("GPL");