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 int qeth_l2_set_offline(struct ccwgroup_device
*);
28 static int qeth_l2_stop(struct net_device
*);
29 static void qeth_bridgeport_query_support(struct qeth_card
*card
);
30 static void qeth_bridge_state_change(struct qeth_card
*card
,
31 struct qeth_ipa_cmd
*cmd
);
32 static void qeth_bridge_host_event(struct qeth_card
*card
,
33 struct qeth_ipa_cmd
*cmd
);
34 static void qeth_l2_vnicc_set_defaults(struct qeth_card
*card
);
35 static void qeth_l2_vnicc_init(struct qeth_card
*card
);
36 static bool qeth_l2_vnicc_recover_timeout(struct qeth_card
*card
, u32 vnicc
,
39 static int qeth_setdelmac_makerc(struct qeth_card
*card
, int retcode
)
44 QETH_CARD_TEXT_(card
, 2, "err%04x", retcode
);
49 case IPA_RC_L2_UNSUPPORTED_CMD
:
52 case IPA_RC_L2_ADDR_TABLE_FULL
:
55 case IPA_RC_L2_DUP_MAC
:
56 case IPA_RC_L2_DUP_LAYER3_MAC
:
59 case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP
:
60 case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP
:
63 case IPA_RC_L2_MAC_NOT_FOUND
:
76 static int qeth_l2_send_setdelmac(struct qeth_card
*card
, __u8
*mac
,
77 enum qeth_ipa_cmds ipacmd
)
79 struct qeth_ipa_cmd
*cmd
;
80 struct qeth_cmd_buffer
*iob
;
82 QETH_CARD_TEXT(card
, 2, "L2sdmac");
83 iob
= qeth_get_ipacmd_buffer(card
, ipacmd
, QETH_PROT_IPV4
);
87 cmd
->data
.setdelmac
.mac_length
= ETH_ALEN
;
88 ether_addr_copy(cmd
->data
.setdelmac
.mac
, mac
);
89 return qeth_setdelmac_makerc(card
, qeth_send_ipa_cmd(card
, iob
,
93 static int qeth_l2_send_setmac(struct qeth_card
*card
, __u8
*mac
)
97 QETH_CARD_TEXT(card
, 2, "L2Setmac");
98 rc
= qeth_l2_send_setdelmac(card
, mac
, IPA_CMD_SETVMAC
);
100 dev_info(&card
->gdev
->dev
,
101 "MAC address %pM successfully registered on device %s\n",
102 mac
, card
->dev
->name
);
106 dev_warn(&card
->gdev
->dev
,
107 "MAC address %pM already exists\n", mac
);
110 dev_warn(&card
->gdev
->dev
,
111 "MAC address %pM is not authorized\n", mac
);
118 static int qeth_l2_write_mac(struct qeth_card
*card
, u8
*mac
)
120 enum qeth_ipa_cmds cmd
= is_multicast_ether_addr(mac
) ?
121 IPA_CMD_SETGMAC
: IPA_CMD_SETVMAC
;
124 QETH_CARD_TEXT(card
, 2, "L2Wmac");
125 rc
= qeth_l2_send_setdelmac(card
, mac
, cmd
);
127 QETH_DBF_MESSAGE(2, "MAC already registered on device %x\n",
130 QETH_DBF_MESSAGE(2, "Failed to register MAC on device %x: %d\n",
131 CARD_DEVID(card
), rc
);
135 static int qeth_l2_remove_mac(struct qeth_card
*card
, u8
*mac
)
137 enum qeth_ipa_cmds cmd
= is_multicast_ether_addr(mac
) ?
138 IPA_CMD_DELGMAC
: IPA_CMD_DELVMAC
;
141 QETH_CARD_TEXT(card
, 2, "L2Rmac");
142 rc
= qeth_l2_send_setdelmac(card
, mac
, cmd
);
144 QETH_DBF_MESSAGE(2, "Failed to delete MAC on device %u: %d\n",
145 CARD_DEVID(card
), rc
);
149 static void qeth_l2_del_all_macs(struct qeth_card
*card
)
151 struct qeth_mac
*mac
;
152 struct hlist_node
*tmp
;
155 spin_lock_bh(&card
->mclock
);
156 hash_for_each_safe(card
->mac_htable
, i
, tmp
, mac
, hnode
) {
157 hash_del(&mac
->hnode
);
160 spin_unlock_bh(&card
->mclock
);
163 static int qeth_l2_get_cast_type(struct qeth_card
*card
, struct sk_buff
*skb
)
165 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
167 if (is_broadcast_ether_addr(skb
->data
))
168 return RTN_BROADCAST
;
169 if (is_multicast_ether_addr(skb
->data
))
170 return RTN_MULTICAST
;
174 static void qeth_l2_fill_header(struct qeth_card
*card
, struct qeth_hdr
*hdr
,
175 struct sk_buff
*skb
, int ipv
, int cast_type
,
176 unsigned int data_len
)
178 struct vlan_ethhdr
*veth
= vlan_eth_hdr(skb
);
180 hdr
->hdr
.l2
.pkt_length
= data_len
;
182 if (skb_is_gso(skb
)) {
183 hdr
->hdr
.l2
.id
= QETH_HEADER_TYPE_L2_TSO
;
185 hdr
->hdr
.l2
.id
= QETH_HEADER_TYPE_LAYER2
;
186 if (skb
->ip_summed
== CHECKSUM_PARTIAL
) {
187 qeth_tx_csum(skb
, &hdr
->hdr
.l2
.flags
[1], ipv
);
188 if (card
->options
.performance_stats
)
189 card
->perf_stats
.tx_csum
++;
193 /* set byte byte 3 to casting flags */
194 if (cast_type
== RTN_MULTICAST
)
195 hdr
->hdr
.l2
.flags
[2] |= QETH_LAYER2_FLAG_MULTICAST
;
196 else if (cast_type
== RTN_BROADCAST
)
197 hdr
->hdr
.l2
.flags
[2] |= QETH_LAYER2_FLAG_BROADCAST
;
199 hdr
->hdr
.l2
.flags
[2] |= QETH_LAYER2_FLAG_UNICAST
;
201 /* VSWITCH relies on the VLAN
202 * information to be present in
204 if (veth
->h_vlan_proto
== __constant_htons(ETH_P_8021Q
)) {
205 hdr
->hdr
.l2
.flags
[2] |= QETH_LAYER2_FLAG_VLAN
;
206 hdr
->hdr
.l2
.vlan_id
= ntohs(veth
->h_vlan_TCI
);
210 static int qeth_setdelvlan_makerc(struct qeth_card
*card
, int retcode
)
213 QETH_CARD_TEXT_(card
, 2, "err%04x", retcode
);
218 case IPA_RC_L2_INVALID_VLAN_ID
:
220 case IPA_RC_L2_DUP_VLAN_ID
:
222 case IPA_RC_L2_VLAN_ID_NOT_FOUND
:
224 case IPA_RC_L2_VLAN_ID_NOT_ALLOWED
:
233 static int qeth_l2_send_setdelvlan_cb(struct qeth_card
*card
,
234 struct qeth_reply
*reply
,
237 struct qeth_ipa_cmd
*cmd
= (struct qeth_ipa_cmd
*) data
;
239 QETH_CARD_TEXT(card
, 2, "L2sdvcb");
240 if (cmd
->hdr
.return_code
) {
241 QETH_DBF_MESSAGE(2, "Error in processing VLAN %u on device %x: %#x.\n",
242 cmd
->data
.setdelvlan
.vlan_id
,
243 CARD_DEVID(card
), cmd
->hdr
.return_code
);
244 QETH_CARD_TEXT_(card
, 2, "L2VL%4x", cmd
->hdr
.command
);
245 QETH_CARD_TEXT_(card
, 2, "err%d", cmd
->hdr
.return_code
);
250 static int qeth_l2_send_setdelvlan(struct qeth_card
*card
, __u16 i
,
251 enum qeth_ipa_cmds ipacmd
)
253 struct qeth_ipa_cmd
*cmd
;
254 struct qeth_cmd_buffer
*iob
;
256 QETH_CARD_TEXT_(card
, 4, "L2sdv%x", ipacmd
);
257 iob
= qeth_get_ipacmd_buffer(card
, ipacmd
, QETH_PROT_IPV4
);
260 cmd
= __ipa_cmd(iob
);
261 cmd
->data
.setdelvlan
.vlan_id
= i
;
262 return qeth_setdelvlan_makerc(card
, qeth_send_ipa_cmd(card
, iob
,
263 qeth_l2_send_setdelvlan_cb
, NULL
));
266 static void qeth_l2_process_vlans(struct qeth_card
*card
)
268 struct qeth_vlan_vid
*id
;
270 QETH_CARD_TEXT(card
, 3, "L2prcvln");
271 mutex_lock(&card
->vid_list_mutex
);
272 list_for_each_entry(id
, &card
->vid_list
, list
) {
273 qeth_l2_send_setdelvlan(card
, id
->vid
, IPA_CMD_SETVLAN
);
275 mutex_unlock(&card
->vid_list_mutex
);
278 static int qeth_l2_vlan_rx_add_vid(struct net_device
*dev
,
279 __be16 proto
, u16 vid
)
281 struct qeth_card
*card
= dev
->ml_priv
;
282 struct qeth_vlan_vid
*id
;
285 QETH_CARD_TEXT_(card
, 4, "aid:%d", vid
);
288 if (qeth_wait_for_threads(card
, QETH_RECOVER_THREAD
)) {
289 QETH_CARD_TEXT(card
, 3, "aidREC");
292 id
= kmalloc(sizeof(*id
), GFP_KERNEL
);
295 rc
= qeth_l2_send_setdelvlan(card
, vid
, IPA_CMD_SETVLAN
);
300 mutex_lock(&card
->vid_list_mutex
);
301 list_add_tail(&id
->list
, &card
->vid_list
);
302 mutex_unlock(&card
->vid_list_mutex
);
309 static int qeth_l2_vlan_rx_kill_vid(struct net_device
*dev
,
310 __be16 proto
, u16 vid
)
312 struct qeth_vlan_vid
*id
, *tmpid
= NULL
;
313 struct qeth_card
*card
= dev
->ml_priv
;
316 QETH_CARD_TEXT_(card
, 4, "kid:%d", vid
);
317 if (qeth_wait_for_threads(card
, QETH_RECOVER_THREAD
)) {
318 QETH_CARD_TEXT(card
, 3, "kidREC");
321 mutex_lock(&card
->vid_list_mutex
);
322 list_for_each_entry(id
, &card
->vid_list
, list
) {
323 if (id
->vid
== vid
) {
329 mutex_unlock(&card
->vid_list_mutex
);
331 rc
= qeth_l2_send_setdelvlan(card
, vid
, IPA_CMD_DELVLAN
);
337 static void qeth_l2_stop_card(struct qeth_card
*card
, int recovery_mode
)
339 QETH_DBF_TEXT(SETUP
, 2, "stopcard");
340 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
342 qeth_set_allowed_threads(card
, 0, 1);
343 if (card
->read
.state
== CH_STATE_UP
&&
344 card
->write
.state
== CH_STATE_UP
&&
345 (card
->state
== CARD_STATE_UP
)) {
347 card
->info
.type
!= QETH_CARD_TYPE_OSN
) {
348 qeth_l2_stop(card
->dev
);
351 dev_close(card
->dev
);
354 card
->info
.mac_bits
&= ~QETH_LAYER2_MAC_REGISTERED
;
355 card
->state
= CARD_STATE_SOFTSETUP
;
357 if (card
->state
== CARD_STATE_SOFTSETUP
) {
358 qeth_l2_del_all_macs(card
);
359 qeth_clear_ipacmd_list(card
);
360 card
->state
= CARD_STATE_HARDSETUP
;
362 if (card
->state
== CARD_STATE_HARDSETUP
) {
363 qeth_qdio_clear_card(card
, 0);
364 qeth_clear_qdio_buffers(card
);
365 qeth_clear_working_pool_list(card
);
366 card
->state
= CARD_STATE_DOWN
;
368 if (card
->state
== CARD_STATE_DOWN
) {
369 qeth_clear_cmd_buffers(&card
->read
);
370 qeth_clear_cmd_buffers(&card
->write
);
374 static int qeth_l2_process_inbound_buffer(struct qeth_card
*card
,
375 int budget
, int *done
)
379 struct qeth_hdr
*hdr
;
383 WARN_ON_ONCE(!budget
);
385 skb
= qeth_core_get_next_skb(card
,
386 &card
->qdio
.in_q
->bufs
[card
->rx
.b_index
],
387 &card
->rx
.b_element
, &card
->rx
.e_offset
, &hdr
);
392 switch (hdr
->hdr
.l2
.id
) {
393 case QETH_HEADER_TYPE_LAYER2
:
394 skb
->protocol
= eth_type_trans(skb
, skb
->dev
);
395 qeth_rx_csum(card
, skb
, hdr
->hdr
.l2
.flags
[1]);
396 if (skb
->protocol
== htons(ETH_P_802_2
))
397 *((__u32
*)skb
->cb
) = ++card
->seqno
.pkt_seqno
;
399 napi_gro_receive(&card
->napi
, skb
);
401 case QETH_HEADER_TYPE_OSN
:
402 if (card
->info
.type
== QETH_CARD_TYPE_OSN
) {
403 skb_push(skb
, sizeof(struct qeth_hdr
));
404 skb_copy_to_linear_data(skb
, hdr
,
405 sizeof(struct qeth_hdr
));
407 card
->osn_info
.data_cb(skb
);
412 dev_kfree_skb_any(skb
);
413 QETH_CARD_TEXT(card
, 3, "inbunkno");
414 QETH_DBF_HEX(CTRL
, 3, hdr
, sizeof(*hdr
));
419 card
->stats
.rx_packets
++;
420 card
->stats
.rx_bytes
+= len
;
425 static int qeth_l2_request_initial_mac(struct qeth_card
*card
)
429 QETH_DBF_TEXT(SETUP
, 2, "l2reqmac");
430 QETH_DBF_TEXT_(SETUP
, 2, "doL2%s", CARD_BUS_ID(card
));
433 rc
= qeth_vm_request_mac(card
);
436 QETH_DBF_MESSAGE(2, "z/VM MAC Service failed on device %x: %#x\n",
437 CARD_DEVID(card
), rc
);
438 QETH_DBF_TEXT_(SETUP
, 2, "err%04x", rc
);
439 /* fall back to alternative mechanism: */
443 rc
= qeth_setadpparms_change_macaddr(card
);
444 if (!rc
&& is_valid_ether_addr(card
->dev
->dev_addr
))
446 QETH_DBF_MESSAGE(2, "READ_MAC Assist failed on device %x: %#x\n",
447 CARD_DEVID(card
), rc
);
448 QETH_DBF_TEXT_(SETUP
, 2, "1err%04x", rc
);
449 /* fall back once more: */
452 /* some devices don't support a custom MAC address: */
453 if (card
->info
.type
== QETH_CARD_TYPE_OSM
||
454 card
->info
.type
== QETH_CARD_TYPE_OSX
)
455 return (rc
) ? rc
: -EADDRNOTAVAIL
;
456 eth_hw_addr_random(card
->dev
);
459 QETH_DBF_HEX(SETUP
, 2, card
->dev
->dev_addr
, card
->dev
->addr_len
);
463 static int qeth_l2_set_mac_address(struct net_device
*dev
, void *p
)
465 struct sockaddr
*addr
= p
;
466 struct qeth_card
*card
= dev
->ml_priv
;
467 u8 old_addr
[ETH_ALEN
];
470 QETH_CARD_TEXT(card
, 3, "setmac");
472 if (card
->info
.type
== QETH_CARD_TYPE_OSN
||
473 card
->info
.type
== QETH_CARD_TYPE_OSM
||
474 card
->info
.type
== QETH_CARD_TYPE_OSX
) {
475 QETH_CARD_TEXT(card
, 3, "setmcTYP");
478 QETH_CARD_HEX(card
, 3, addr
->sa_data
, ETH_ALEN
);
479 if (!is_valid_ether_addr(addr
->sa_data
))
480 return -EADDRNOTAVAIL
;
482 if (qeth_wait_for_threads(card
, QETH_RECOVER_THREAD
)) {
483 QETH_CARD_TEXT(card
, 3, "setmcREC");
487 /* avoid racing against concurrent state change: */
488 if (!mutex_trylock(&card
->conf_mutex
))
491 if (!qeth_card_hw_is_reachable(card
)) {
492 ether_addr_copy(dev
->dev_addr
, addr
->sa_data
);
496 /* don't register the same address twice */
497 if (ether_addr_equal_64bits(dev
->dev_addr
, addr
->sa_data
) &&
498 (card
->info
.mac_bits
& QETH_LAYER2_MAC_REGISTERED
))
501 /* add the new address, switch over, drop the old */
502 rc
= qeth_l2_send_setmac(card
, addr
->sa_data
);
505 ether_addr_copy(old_addr
, dev
->dev_addr
);
506 ether_addr_copy(dev
->dev_addr
, addr
->sa_data
);
508 if (card
->info
.mac_bits
& QETH_LAYER2_MAC_REGISTERED
)
509 qeth_l2_remove_mac(card
, old_addr
);
510 card
->info
.mac_bits
|= QETH_LAYER2_MAC_REGISTERED
;
513 mutex_unlock(&card
->conf_mutex
);
517 static void qeth_promisc_to_bridge(struct qeth_card
*card
)
519 struct net_device
*dev
= card
->dev
;
520 enum qeth_ipa_promisc_modes promisc_mode
;
524 QETH_CARD_TEXT(card
, 3, "pmisc2br");
526 if (!card
->options
.sbp
.reflect_promisc
)
528 promisc_mode
= (dev
->flags
& IFF_PROMISC
) ? SET_PROMISC_MODE_ON
529 : SET_PROMISC_MODE_OFF
;
530 if (promisc_mode
== card
->info
.promisc_mode
)
533 if (promisc_mode
== SET_PROMISC_MODE_ON
) {
534 if (card
->options
.sbp
.reflect_promisc_primary
)
535 role
= QETH_SBP_ROLE_PRIMARY
;
537 role
= QETH_SBP_ROLE_SECONDARY
;
539 role
= QETH_SBP_ROLE_NONE
;
541 rc
= qeth_bridgeport_setrole(card
, role
);
542 QETH_DBF_TEXT_(SETUP
, 2, "bpm%c%04x",
543 (promisc_mode
== SET_PROMISC_MODE_ON
) ? '+' : '-', rc
);
545 card
->options
.sbp
.role
= role
;
546 card
->info
.promisc_mode
= promisc_mode
;
550 /* New MAC address is added to the hash table and marked to be written on card
551 * only if there is not in the hash table storage already
554 static void qeth_l2_add_mac(struct qeth_card
*card
, struct netdev_hw_addr
*ha
)
556 u32 mac_hash
= get_unaligned((u32
*)(&ha
->addr
[2]));
557 struct qeth_mac
*mac
;
559 hash_for_each_possible(card
->mac_htable
, mac
, hnode
, mac_hash
) {
560 if (ether_addr_equal_64bits(ha
->addr
, mac
->mac_addr
)) {
561 mac
->disp_flag
= QETH_DISP_ADDR_DO_NOTHING
;
566 mac
= kzalloc(sizeof(struct qeth_mac
), GFP_ATOMIC
);
570 ether_addr_copy(mac
->mac_addr
, ha
->addr
);
571 mac
->disp_flag
= QETH_DISP_ADDR_ADD
;
573 hash_add(card
->mac_htable
, &mac
->hnode
, mac_hash
);
576 static void qeth_l2_set_rx_mode(struct net_device
*dev
)
578 struct qeth_card
*card
= dev
->ml_priv
;
579 struct netdev_hw_addr
*ha
;
580 struct qeth_mac
*mac
;
581 struct hlist_node
*tmp
;
585 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
588 QETH_CARD_TEXT(card
, 3, "setmulti");
589 if (qeth_threads_running(card
, QETH_RECOVER_THREAD
) &&
590 (card
->state
!= CARD_STATE_UP
))
593 spin_lock_bh(&card
->mclock
);
595 netdev_for_each_mc_addr(ha
, dev
)
596 qeth_l2_add_mac(card
, ha
);
597 netdev_for_each_uc_addr(ha
, dev
)
598 qeth_l2_add_mac(card
, ha
);
600 hash_for_each_safe(card
->mac_htable
, i
, tmp
, mac
, hnode
) {
601 switch (mac
->disp_flag
) {
602 case QETH_DISP_ADDR_DELETE
:
603 qeth_l2_remove_mac(card
, mac
->mac_addr
);
604 hash_del(&mac
->hnode
);
607 case QETH_DISP_ADDR_ADD
:
608 rc
= qeth_l2_write_mac(card
, mac
->mac_addr
);
610 hash_del(&mac
->hnode
);
616 /* for next call to set_rx_mode(): */
617 mac
->disp_flag
= QETH_DISP_ADDR_DELETE
;
621 spin_unlock_bh(&card
->mclock
);
623 if (qeth_adp_supported(card
, IPA_SETADP_SET_PROMISC_MODE
))
624 qeth_setadp_promisc_mode(card
);
626 qeth_promisc_to_bridge(card
);
629 static int qeth_l2_xmit_osn(struct qeth_card
*card
, struct sk_buff
*skb
,
630 struct qeth_qdio_out_q
*queue
)
632 struct qeth_hdr
*hdr
= (struct qeth_hdr
*)skb
->data
;
633 addr_t end
= (addr_t
)(skb
->data
+ sizeof(*hdr
));
634 addr_t start
= (addr_t
)skb
->data
;
635 unsigned int elements
= 0;
636 unsigned int hd_len
= 0;
639 if (skb
->protocol
== htons(ETH_P_IPV6
))
640 return -EPROTONOSUPPORT
;
642 if (qeth_get_elements_for_range(start
, end
) > 1) {
643 /* Misaligned HW header, move it to its own buffer element. */
644 hdr
= kmem_cache_alloc(qeth_core_header_cache
, GFP_ATOMIC
);
647 hd_len
= sizeof(*hdr
);
648 skb_copy_from_linear_data(skb
, (char *)hdr
, hd_len
);
652 elements
+= qeth_count_elements(skb
, hd_len
);
653 if (elements
> QETH_MAX_BUFFER_ELEMENTS(card
)) {
658 rc
= qeth_do_send_packet(card
, queue
, skb
, hdr
, hd_len
, hd_len
,
662 kmem_cache_free(qeth_core_header_cache
, hdr
);
666 static netdev_tx_t
qeth_l2_hard_start_xmit(struct sk_buff
*skb
,
667 struct net_device
*dev
)
669 struct qeth_card
*card
= dev
->ml_priv
;
670 int cast_type
= qeth_l2_get_cast_type(card
, skb
);
671 int ipv
= qeth_get_ip_version(skb
);
672 struct qeth_qdio_out_q
*queue
;
673 int tx_bytes
= skb
->len
;
676 if (card
->state
!= CARD_STATE_UP
) {
677 card
->stats
.tx_carrier_errors
++;
681 queue
= qeth_get_tx_queue(card
, skb
, ipv
, cast_type
);
683 if (card
->options
.performance_stats
) {
684 card
->perf_stats
.outbound_cnt
++;
685 card
->perf_stats
.outbound_start_time
= qeth_get_micros();
687 netif_stop_queue(dev
);
690 rc
= qeth_l2_xmit_osn(card
, skb
, queue
);
692 rc
= qeth_xmit(card
, skb
, queue
, ipv
, cast_type
,
693 qeth_l2_fill_header
);
696 card
->stats
.tx_packets
++;
697 card
->stats
.tx_bytes
+= tx_bytes
;
698 if (card
->options
.performance_stats
)
699 card
->perf_stats
.outbound_time
+= qeth_get_micros() -
700 card
->perf_stats
.outbound_start_time
;
701 netif_wake_queue(dev
);
703 } else if (rc
== -EBUSY
) {
704 return NETDEV_TX_BUSY
;
705 } /* else fall through */
708 card
->stats
.tx_dropped
++;
709 card
->stats
.tx_errors
++;
710 dev_kfree_skb_any(skb
);
711 netif_wake_queue(dev
);
715 static int __qeth_l2_open(struct net_device
*dev
)
717 struct qeth_card
*card
= dev
->ml_priv
;
720 QETH_CARD_TEXT(card
, 4, "qethopen");
721 if (card
->state
== CARD_STATE_UP
)
723 if (card
->state
!= CARD_STATE_SOFTSETUP
)
726 if ((card
->info
.type
!= QETH_CARD_TYPE_OSN
) &&
727 (!(card
->info
.mac_bits
& QETH_LAYER2_MAC_REGISTERED
))) {
728 QETH_CARD_TEXT(card
, 4, "nomacadr");
731 card
->data
.state
= CH_STATE_UP
;
732 card
->state
= CARD_STATE_UP
;
733 netif_start_queue(dev
);
735 if (qdio_stop_irq(card
->data
.ccwdev
, 0) >= 0) {
736 napi_enable(&card
->napi
);
738 napi_schedule(&card
->napi
);
739 /* kick-start the NAPI softirq: */
746 static int qeth_l2_open(struct net_device
*dev
)
748 struct qeth_card
*card
= dev
->ml_priv
;
750 QETH_CARD_TEXT(card
, 5, "qethope_");
751 if (qeth_wait_for_threads(card
, QETH_RECOVER_THREAD
)) {
752 QETH_CARD_TEXT(card
, 3, "openREC");
755 return __qeth_l2_open(dev
);
758 static int qeth_l2_stop(struct net_device
*dev
)
760 struct qeth_card
*card
= dev
->ml_priv
;
762 QETH_CARD_TEXT(card
, 4, "qethstop");
763 netif_tx_disable(dev
);
764 if (card
->state
== CARD_STATE_UP
) {
765 card
->state
= CARD_STATE_SOFTSETUP
;
766 napi_disable(&card
->napi
);
771 static const struct device_type qeth_l2_devtype
= {
772 .name
= "qeth_layer2",
773 .groups
= qeth_l2_attr_groups
,
776 static int qeth_l2_probe_device(struct ccwgroup_device
*gdev
)
778 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
781 if (gdev
->dev
.type
== &qeth_generic_devtype
) {
782 rc
= qeth_l2_create_device_attributes(&gdev
->dev
);
786 INIT_LIST_HEAD(&card
->vid_list
);
787 hash_init(card
->mac_htable
);
788 card
->info
.hwtrap
= 0;
789 qeth_l2_vnicc_set_defaults(card
);
793 static void qeth_l2_remove_device(struct ccwgroup_device
*cgdev
)
795 struct qeth_card
*card
= dev_get_drvdata(&cgdev
->dev
);
797 if (cgdev
->dev
.type
== &qeth_generic_devtype
)
798 qeth_l2_remove_device_attributes(&cgdev
->dev
);
799 qeth_set_allowed_threads(card
, 0, 1);
800 wait_event(card
->wait_q
, qeth_threads_running(card
, 0xffffffff) == 0);
802 if (cgdev
->state
== CCWGROUP_ONLINE
)
803 qeth_l2_set_offline(cgdev
);
804 if (qeth_netdev_is_registered(card
->dev
))
805 unregister_netdev(card
->dev
);
808 static const struct ethtool_ops qeth_l2_ethtool_ops
= {
809 .get_link
= ethtool_op_get_link
,
810 .get_strings
= qeth_core_get_strings
,
811 .get_ethtool_stats
= qeth_core_get_ethtool_stats
,
812 .get_sset_count
= qeth_core_get_sset_count
,
813 .get_drvinfo
= qeth_core_get_drvinfo
,
814 .get_link_ksettings
= qeth_core_ethtool_get_link_ksettings
,
817 static const struct ethtool_ops qeth_l2_osn_ops
= {
818 .get_strings
= qeth_core_get_strings
,
819 .get_ethtool_stats
= qeth_core_get_ethtool_stats
,
820 .get_sset_count
= qeth_core_get_sset_count
,
821 .get_drvinfo
= qeth_core_get_drvinfo
,
824 static const struct net_device_ops qeth_l2_netdev_ops
= {
825 .ndo_open
= qeth_l2_open
,
826 .ndo_stop
= qeth_l2_stop
,
827 .ndo_get_stats
= qeth_get_stats
,
828 .ndo_start_xmit
= qeth_l2_hard_start_xmit
,
829 .ndo_features_check
= qeth_features_check
,
830 .ndo_validate_addr
= eth_validate_addr
,
831 .ndo_set_rx_mode
= qeth_l2_set_rx_mode
,
832 .ndo_do_ioctl
= qeth_do_ioctl
,
833 .ndo_set_mac_address
= qeth_l2_set_mac_address
,
834 .ndo_vlan_rx_add_vid
= qeth_l2_vlan_rx_add_vid
,
835 .ndo_vlan_rx_kill_vid
= qeth_l2_vlan_rx_kill_vid
,
836 .ndo_tx_timeout
= qeth_tx_timeout
,
837 .ndo_fix_features
= qeth_fix_features
,
838 .ndo_set_features
= qeth_set_features
841 static int qeth_l2_setup_netdev(struct qeth_card
*card
, bool carrier_ok
)
845 if (qeth_netdev_is_registered(card
->dev
))
848 card
->dev
->priv_flags
|= IFF_UNICAST_FLT
;
849 card
->dev
->netdev_ops
= &qeth_l2_netdev_ops
;
850 if (card
->info
.type
== QETH_CARD_TYPE_OSN
) {
851 card
->dev
->ethtool_ops
= &qeth_l2_osn_ops
;
852 card
->dev
->flags
|= IFF_NOARP
;
854 card
->dev
->ethtool_ops
= &qeth_l2_ethtool_ops
;
855 card
->dev
->needed_headroom
= sizeof(struct qeth_hdr
);
858 if (card
->info
.type
== QETH_CARD_TYPE_OSM
)
859 card
->dev
->features
|= NETIF_F_VLAN_CHALLENGED
;
861 card
->dev
->features
|= NETIF_F_HW_VLAN_CTAG_FILTER
;
863 if (card
->info
.type
== QETH_CARD_TYPE_OSD
&& !card
->info
.guestlan
) {
864 card
->dev
->features
|= NETIF_F_SG
;
865 /* OSA 3S and earlier has no RX/TX support */
866 if (qeth_is_supported(card
, IPA_OUTBOUND_CHECKSUM
)) {
867 card
->dev
->hw_features
|= NETIF_F_IP_CSUM
;
868 card
->dev
->vlan_features
|= NETIF_F_IP_CSUM
;
871 if (qeth_is_supported6(card
, IPA_OUTBOUND_CHECKSUM_V6
)) {
872 card
->dev
->hw_features
|= NETIF_F_IPV6_CSUM
;
873 card
->dev
->vlan_features
|= NETIF_F_IPV6_CSUM
;
875 if (qeth_is_supported(card
, IPA_INBOUND_CHECKSUM
) ||
876 qeth_is_supported6(card
, IPA_INBOUND_CHECKSUM_V6
)) {
877 card
->dev
->hw_features
|= NETIF_F_RXCSUM
;
878 card
->dev
->vlan_features
|= NETIF_F_RXCSUM
;
880 if (qeth_is_supported(card
, IPA_OUTBOUND_TSO
)) {
881 card
->dev
->hw_features
|= NETIF_F_TSO
;
882 card
->dev
->vlan_features
|= NETIF_F_TSO
;
884 if (qeth_is_supported6(card
, IPA_OUTBOUND_TSO
)) {
885 card
->dev
->hw_features
|= NETIF_F_TSO6
;
886 card
->dev
->vlan_features
|= NETIF_F_TSO6
;
889 if (card
->dev
->hw_features
& (NETIF_F_TSO
| NETIF_F_TSO6
)) {
890 card
->dev
->needed_headroom
= sizeof(struct qeth_hdr_tso
);
891 netif_set_gso_max_size(card
->dev
,
892 PAGE_SIZE
* (QDIO_MAX_ELEMENTS_PER_BUFFER
- 1));
895 if (!is_valid_ether_addr(card
->dev
->dev_addr
))
896 qeth_l2_request_initial_mac(card
);
897 netif_napi_add(card
->dev
, &card
->napi
, qeth_poll
, QETH_NAPI_WEIGHT
);
898 rc
= register_netdev(card
->dev
);
899 if (!rc
&& carrier_ok
)
900 netif_carrier_on(card
->dev
);
903 card
->dev
->netdev_ops
= NULL
;
907 static int qeth_l2_start_ipassists(struct qeth_card
*card
)
909 /* configure isolation level */
910 if (qeth_set_access_ctrl_online(card
, 0))
915 static void qeth_l2_trace_features(struct qeth_card
*card
)
917 /* Set BridgePort features */
918 QETH_CARD_TEXT(card
, 2, "featuSBP");
919 QETH_CARD_HEX(card
, 2, &card
->options
.sbp
.supported_funcs
,
920 sizeof(card
->options
.sbp
.supported_funcs
));
921 /* VNIC Characteristics features */
922 QETH_CARD_TEXT(card
, 2, "feaVNICC");
923 QETH_CARD_HEX(card
, 2, &card
->options
.vnicc
.sup_chars
,
924 sizeof(card
->options
.vnicc
.sup_chars
));
927 static int __qeth_l2_set_online(struct ccwgroup_device
*gdev
, int recovery_mode
)
929 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
931 enum qeth_card_states recover_flag
;
934 mutex_lock(&card
->discipline_mutex
);
935 mutex_lock(&card
->conf_mutex
);
936 QETH_DBF_TEXT(SETUP
, 2, "setonlin");
937 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
939 recover_flag
= card
->state
;
940 rc
= qeth_core_hardsetup_card(card
, &carrier_ok
);
942 QETH_DBF_TEXT_(SETUP
, 2, "2err%04x", rc
);
946 qeth_bridgeport_query_support(card
);
947 if (card
->options
.sbp
.supported_funcs
)
948 dev_info(&card
->gdev
->dev
,
949 "The device represents a Bridge Capable Port\n");
951 rc
= qeth_l2_setup_netdev(card
, carrier_ok
);
955 if (card
->info
.type
!= QETH_CARD_TYPE_OSN
&&
956 !qeth_l2_send_setmac(card
, card
->dev
->dev_addr
))
957 card
->info
.mac_bits
|= QETH_LAYER2_MAC_REGISTERED
;
959 if (qeth_is_diagass_supported(card
, QETH_DIAGS_CMD_TRAP
)) {
960 if (card
->info
.hwtrap
&&
961 qeth_hw_trap(card
, QETH_DIAGS_TRAP_ARM
))
962 card
->info
.hwtrap
= 0;
964 card
->info
.hwtrap
= 0;
966 /* for the rx_bcast characteristic, init VNICC after setmac */
967 qeth_l2_vnicc_init(card
);
969 qeth_trace_features(card
);
970 qeth_l2_trace_features(card
);
972 qeth_l2_setup_bridgeport_attrs(card
);
974 card
->state
= CARD_STATE_HARDSETUP
;
975 qeth_print_status_message(card
);
978 QETH_DBF_TEXT(SETUP
, 2, "softsetp");
980 if ((card
->info
.type
== QETH_CARD_TYPE_OSD
) ||
981 (card
->info
.type
== QETH_CARD_TYPE_OSX
)) {
982 rc
= qeth_l2_start_ipassists(card
);
987 if (card
->info
.type
!= QETH_CARD_TYPE_OSN
)
988 qeth_l2_process_vlans(card
);
990 netif_tx_disable(card
->dev
);
992 rc
= qeth_init_qdio_queues(card
);
994 QETH_DBF_TEXT_(SETUP
, 2, "6err%d", rc
);
998 card
->state
= CARD_STATE_SOFTSETUP
;
1000 qeth_set_allowed_threads(card
, 0xffffffff, 0);
1002 qeth_enable_hw_features(card
->dev
);
1003 if (recover_flag
== CARD_STATE_RECOVER
) {
1004 if (recovery_mode
&&
1005 card
->info
.type
!= QETH_CARD_TYPE_OSN
) {
1006 __qeth_l2_open(card
->dev
);
1007 qeth_l2_set_rx_mode(card
->dev
);
1010 dev_open(card
->dev
, NULL
);
1014 /* let user_space know that device is online */
1015 kobject_uevent(&gdev
->dev
.kobj
, KOBJ_CHANGE
);
1016 mutex_unlock(&card
->conf_mutex
);
1017 mutex_unlock(&card
->discipline_mutex
);
1021 qeth_l2_stop_card(card
, 0);
1022 ccw_device_set_offline(CARD_DDEV(card
));
1023 ccw_device_set_offline(CARD_WDEV(card
));
1024 ccw_device_set_offline(CARD_RDEV(card
));
1025 qdio_free(CARD_DDEV(card
));
1026 if (recover_flag
== CARD_STATE_RECOVER
)
1027 card
->state
= CARD_STATE_RECOVER
;
1029 card
->state
= CARD_STATE_DOWN
;
1030 mutex_unlock(&card
->conf_mutex
);
1031 mutex_unlock(&card
->discipline_mutex
);
1035 static int qeth_l2_set_online(struct ccwgroup_device
*gdev
)
1037 return __qeth_l2_set_online(gdev
, 0);
1040 static int __qeth_l2_set_offline(struct ccwgroup_device
*cgdev
,
1043 struct qeth_card
*card
= dev_get_drvdata(&cgdev
->dev
);
1044 int rc
= 0, rc2
= 0, rc3
= 0;
1045 enum qeth_card_states recover_flag
;
1047 mutex_lock(&card
->discipline_mutex
);
1048 mutex_lock(&card
->conf_mutex
);
1049 QETH_DBF_TEXT(SETUP
, 3, "setoffl");
1050 QETH_DBF_HEX(SETUP
, 3, &card
, sizeof(void *));
1052 netif_carrier_off(card
->dev
);
1053 recover_flag
= card
->state
;
1054 if ((!recovery_mode
&& card
->info
.hwtrap
) || card
->info
.hwtrap
== 2) {
1055 qeth_hw_trap(card
, QETH_DIAGS_TRAP_DISARM
);
1056 card
->info
.hwtrap
= 1;
1058 qeth_l2_stop_card(card
, recovery_mode
);
1059 rc
= ccw_device_set_offline(CARD_DDEV(card
));
1060 rc2
= ccw_device_set_offline(CARD_WDEV(card
));
1061 rc3
= ccw_device_set_offline(CARD_RDEV(card
));
1063 rc
= (rc2
) ? rc2
: rc3
;
1065 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
1066 qdio_free(CARD_DDEV(card
));
1067 if (recover_flag
== CARD_STATE_UP
)
1068 card
->state
= CARD_STATE_RECOVER
;
1069 /* let user_space know that device is offline */
1070 kobject_uevent(&cgdev
->dev
.kobj
, KOBJ_CHANGE
);
1071 mutex_unlock(&card
->conf_mutex
);
1072 mutex_unlock(&card
->discipline_mutex
);
1076 static int qeth_l2_set_offline(struct ccwgroup_device
*cgdev
)
1078 return __qeth_l2_set_offline(cgdev
, 0);
1081 static int qeth_l2_recover(void *ptr
)
1083 struct qeth_card
*card
;
1086 card
= (struct qeth_card
*) ptr
;
1087 QETH_CARD_TEXT(card
, 2, "recover1");
1088 if (!qeth_do_run_thread(card
, QETH_RECOVER_THREAD
))
1090 QETH_CARD_TEXT(card
, 2, "recover2");
1091 dev_warn(&card
->gdev
->dev
,
1092 "A recovery process has been started for the device\n");
1093 qeth_set_recovery_task(card
);
1094 __qeth_l2_set_offline(card
->gdev
, 1);
1095 rc
= __qeth_l2_set_online(card
->gdev
, 1);
1097 dev_info(&card
->gdev
->dev
,
1098 "Device successfully recovered!\n");
1100 qeth_close_dev(card
);
1101 dev_warn(&card
->gdev
->dev
, "The qeth device driver "
1102 "failed to recover an error on the device\n");
1104 qeth_clear_recovery_task(card
);
1105 qeth_clear_thread_start_bit(card
, QETH_RECOVER_THREAD
);
1106 qeth_clear_thread_running_bit(card
, QETH_RECOVER_THREAD
);
1110 static int __init
qeth_l2_init(void)
1112 pr_info("register layer 2 discipline\n");
1116 static void __exit
qeth_l2_exit(void)
1118 pr_info("unregister layer 2 discipline\n");
1121 static int qeth_l2_pm_suspend(struct ccwgroup_device
*gdev
)
1123 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
1125 netif_device_detach(card
->dev
);
1126 qeth_set_allowed_threads(card
, 0, 1);
1127 wait_event(card
->wait_q
, qeth_threads_running(card
, 0xffffffff) == 0);
1128 if (gdev
->state
== CCWGROUP_OFFLINE
)
1130 if (card
->state
== CARD_STATE_UP
) {
1131 if (card
->info
.hwtrap
)
1132 qeth_hw_trap(card
, QETH_DIAGS_TRAP_DISARM
);
1133 __qeth_l2_set_offline(card
->gdev
, 1);
1135 __qeth_l2_set_offline(card
->gdev
, 0);
1139 static int qeth_l2_pm_resume(struct ccwgroup_device
*gdev
)
1141 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
1144 if (card
->state
== CARD_STATE_RECOVER
) {
1145 rc
= __qeth_l2_set_online(card
->gdev
, 1);
1148 dev_close(card
->dev
);
1152 rc
= __qeth_l2_set_online(card
->gdev
, 0);
1154 qeth_set_allowed_threads(card
, 0xffffffff, 0);
1155 netif_device_attach(card
->dev
);
1157 dev_warn(&card
->gdev
->dev
, "The qeth device driver "
1158 "failed to recover an error on the device\n");
1162 /* Returns zero if the command is successfully "consumed" */
1163 static int qeth_l2_control_event(struct qeth_card
*card
,
1164 struct qeth_ipa_cmd
*cmd
)
1166 switch (cmd
->hdr
.command
) {
1167 case IPA_CMD_SETBRIDGEPORT_OSA
:
1168 case IPA_CMD_SETBRIDGEPORT_IQD
:
1169 if (cmd
->data
.sbp
.hdr
.command_code
==
1170 IPA_SBP_BRIDGE_PORT_STATE_CHANGE
) {
1171 qeth_bridge_state_change(card
, cmd
);
1175 case IPA_CMD_ADDRESS_CHANGE_NOTIF
:
1176 qeth_bridge_host_event(card
, cmd
);
1183 struct qeth_discipline qeth_l2_discipline
= {
1184 .devtype
= &qeth_l2_devtype
,
1185 .process_rx_buffer
= qeth_l2_process_inbound_buffer
,
1186 .recover
= qeth_l2_recover
,
1187 .setup
= qeth_l2_probe_device
,
1188 .remove
= qeth_l2_remove_device
,
1189 .set_online
= qeth_l2_set_online
,
1190 .set_offline
= qeth_l2_set_offline
,
1191 .freeze
= qeth_l2_pm_suspend
,
1192 .thaw
= qeth_l2_pm_resume
,
1193 .restore
= qeth_l2_pm_resume
,
1195 .control_event_handler
= qeth_l2_control_event
,
1197 EXPORT_SYMBOL_GPL(qeth_l2_discipline
);
1199 static int qeth_osn_send_control_data(struct qeth_card
*card
, int len
,
1200 struct qeth_cmd_buffer
*iob
)
1202 struct qeth_channel
*channel
= iob
->channel
;
1205 QETH_CARD_TEXT(card
, 5, "osndctrd");
1207 wait_event(card
->wait_q
,
1208 atomic_cmpxchg(&channel
->irq_pending
, 0, 1) == 0);
1209 qeth_prepare_control_data(card
, len
, iob
);
1210 QETH_CARD_TEXT(card
, 6, "osnoirqp");
1211 spin_lock_irq(get_ccwdev_lock(channel
->ccwdev
));
1212 rc
= ccw_device_start_timeout(channel
->ccwdev
, channel
->ccw
,
1213 (addr_t
) iob
, 0, 0, QETH_IPA_TIMEOUT
);
1214 spin_unlock_irq(get_ccwdev_lock(channel
->ccwdev
));
1216 QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: "
1217 "ccw_device_start rc = %i\n", rc
);
1218 QETH_CARD_TEXT_(card
, 2, " err%d", rc
);
1219 qeth_release_buffer(channel
, iob
);
1220 atomic_set(&channel
->irq_pending
, 0);
1221 wake_up(&card
->wait_q
);
1226 static int qeth_osn_send_ipa_cmd(struct qeth_card
*card
,
1227 struct qeth_cmd_buffer
*iob
, int data_len
)
1231 QETH_CARD_TEXT(card
, 4, "osndipa");
1233 qeth_prepare_ipa_cmd(card
, iob
);
1234 s1
= (u16
)(IPA_PDU_HEADER_SIZE
+ data_len
);
1236 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob
->data
), &s1
, 2);
1237 memcpy(QETH_IPA_PDU_LEN_PDU1(iob
->data
), &s2
, 2);
1238 memcpy(QETH_IPA_PDU_LEN_PDU2(iob
->data
), &s2
, 2);
1239 memcpy(QETH_IPA_PDU_LEN_PDU3(iob
->data
), &s2
, 2);
1240 return qeth_osn_send_control_data(card
, s1
, iob
);
1243 int qeth_osn_assist(struct net_device
*dev
, void *data
, int data_len
)
1245 struct qeth_cmd_buffer
*iob
;
1246 struct qeth_card
*card
;
1250 card
= dev
->ml_priv
;
1253 QETH_CARD_TEXT(card
, 2, "osnsdmc");
1254 if (!qeth_card_hw_is_reachable(card
))
1256 iob
= qeth_wait_for_buffer(&card
->write
);
1257 memcpy(__ipa_cmd(iob
), data
, data_len
);
1258 return qeth_osn_send_ipa_cmd(card
, iob
, data_len
);
1260 EXPORT_SYMBOL(qeth_osn_assist
);
1262 int qeth_osn_register(unsigned char *read_dev_no
, struct net_device
**dev
,
1263 int (*assist_cb
)(struct net_device
*, void *),
1264 int (*data_cb
)(struct sk_buff
*))
1266 struct qeth_card
*card
;
1270 memcpy(&devno
, read_dev_no
, 2);
1271 sprintf(bus_id
, "0.0.%04x", devno
);
1272 card
= qeth_get_card_by_busid(bus_id
);
1273 if (!card
|| !IS_OSN(card
))
1277 QETH_CARD_TEXT(card
, 2, "osnreg");
1278 if ((assist_cb
== NULL
) || (data_cb
== NULL
))
1280 card
->osn_info
.assist_cb
= assist_cb
;
1281 card
->osn_info
.data_cb
= data_cb
;
1284 EXPORT_SYMBOL(qeth_osn_register
);
1286 void qeth_osn_deregister(struct net_device
*dev
)
1288 struct qeth_card
*card
;
1292 card
= dev
->ml_priv
;
1295 QETH_CARD_TEXT(card
, 2, "osndereg");
1296 card
->osn_info
.assist_cb
= NULL
;
1297 card
->osn_info
.data_cb
= NULL
;
1300 EXPORT_SYMBOL(qeth_osn_deregister
);
1302 /* SETBRIDGEPORT support, async notifications */
1304 enum qeth_an_event_type
{anev_reg_unreg
, anev_abort
, anev_reset
};
1307 * qeth_bridge_emit_host_event() - bridgeport address change notification
1308 * @card: qeth_card structure pointer, for udev events.
1309 * @evtype: "normal" register/unregister, or abort, or reset. For abort
1310 * and reset token and addr_lnid are unused and may be NULL.
1311 * @code: event bitmask: high order bit 0x80 value 1 means removal of an
1312 * object, 0 - addition of an object.
1313 * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC.
1314 * @token: "network token" structure identifying physical address of the port.
1315 * @addr_lnid: pointer to structure with MAC address and VLAN ID.
1317 * This function is called when registrations and deregistrations are
1318 * reported by the hardware, and also when notifications are enabled -
1319 * for all currently registered addresses.
1321 static void qeth_bridge_emit_host_event(struct qeth_card
*card
,
1322 enum qeth_an_event_type evtype
,
1323 u8 code
, struct net_if_token
*token
, struct mac_addr_lnid
*addr_lnid
)
1330 case anev_reg_unreg
:
1331 snprintf(str
[i
], sizeof(str
[i
]), "BRIDGEDHOST=%s",
1332 (code
& IPA_ADDR_CHANGE_CODE_REMOVAL
)
1333 ? "deregister" : "register");
1334 env
[i
] = str
[i
]; i
++;
1335 if (code
& IPA_ADDR_CHANGE_CODE_VLANID
) {
1336 snprintf(str
[i
], sizeof(str
[i
]), "VLAN=%d",
1338 env
[i
] = str
[i
]; i
++;
1340 if (code
& IPA_ADDR_CHANGE_CODE_MACADDR
) {
1341 snprintf(str
[i
], sizeof(str
[i
]), "MAC=%pM",
1343 env
[i
] = str
[i
]; i
++;
1345 snprintf(str
[i
], sizeof(str
[i
]), "NTOK_BUSID=%x.%x.%04x",
1346 token
->cssid
, token
->ssid
, token
->devnum
);
1347 env
[i
] = str
[i
]; i
++;
1348 snprintf(str
[i
], sizeof(str
[i
]), "NTOK_IID=%02x", token
->iid
);
1349 env
[i
] = str
[i
]; i
++;
1350 snprintf(str
[i
], sizeof(str
[i
]), "NTOK_CHPID=%02x",
1352 env
[i
] = str
[i
]; i
++;
1353 snprintf(str
[i
], sizeof(str
[i
]), "NTOK_CHID=%04x", token
->chid
);
1354 env
[i
] = str
[i
]; i
++;
1357 snprintf(str
[i
], sizeof(str
[i
]), "BRIDGEDHOST=abort");
1358 env
[i
] = str
[i
]; i
++;
1361 snprintf(str
[i
], sizeof(str
[i
]), "BRIDGEDHOST=reset");
1362 env
[i
] = str
[i
]; i
++;
1366 kobject_uevent_env(&card
->gdev
->dev
.kobj
, KOBJ_CHANGE
, env
);
1369 struct qeth_bridge_state_data
{
1370 struct work_struct worker
;
1371 struct qeth_card
*card
;
1372 struct qeth_sbp_state_change qports
;
1375 static void qeth_bridge_state_change_worker(struct work_struct
*work
)
1377 struct qeth_bridge_state_data
*data
=
1378 container_of(work
, struct qeth_bridge_state_data
, worker
);
1379 /* We are only interested in the first entry - local port */
1380 struct qeth_sbp_port_entry
*entry
= &data
->qports
.entry
[0];
1381 char env_locrem
[32];
1391 /* Role should not change by itself, but if it did, */
1392 /* information from the hardware is authoritative. */
1393 mutex_lock(&data
->card
->conf_mutex
);
1394 data
->card
->options
.sbp
.role
= entry
->role
;
1395 mutex_unlock(&data
->card
->conf_mutex
);
1397 snprintf(env_locrem
, sizeof(env_locrem
), "BRIDGEPORT=statechange");
1398 snprintf(env_role
, sizeof(env_role
), "ROLE=%s",
1399 (entry
->role
== QETH_SBP_ROLE_NONE
) ? "none" :
1400 (entry
->role
== QETH_SBP_ROLE_PRIMARY
) ? "primary" :
1401 (entry
->role
== QETH_SBP_ROLE_SECONDARY
) ? "secondary" :
1403 snprintf(env_state
, sizeof(env_state
), "STATE=%s",
1404 (entry
->state
== QETH_SBP_STATE_INACTIVE
) ? "inactive" :
1405 (entry
->state
== QETH_SBP_STATE_STANDBY
) ? "standby" :
1406 (entry
->state
== QETH_SBP_STATE_ACTIVE
) ? "active" :
1408 kobject_uevent_env(&data
->card
->gdev
->dev
.kobj
,
1413 static void qeth_bridge_state_change(struct qeth_card
*card
,
1414 struct qeth_ipa_cmd
*cmd
)
1416 struct qeth_sbp_state_change
*qports
=
1417 &cmd
->data
.sbp
.data
.state_change
;
1418 struct qeth_bridge_state_data
*data
;
1421 QETH_CARD_TEXT(card
, 2, "brstchng");
1422 if (qports
->entry_length
!= sizeof(struct qeth_sbp_port_entry
)) {
1423 QETH_CARD_TEXT_(card
, 2, "BPsz%04x", qports
->entry_length
);
1426 extrasize
= sizeof(struct qeth_sbp_port_entry
) * qports
->num_entries
;
1427 data
= kzalloc(sizeof(struct qeth_bridge_state_data
) + extrasize
,
1430 QETH_CARD_TEXT(card
, 2, "BPSalloc");
1433 INIT_WORK(&data
->worker
, qeth_bridge_state_change_worker
);
1435 memcpy(&data
->qports
, qports
,
1436 sizeof(struct qeth_sbp_state_change
) + extrasize
);
1437 queue_work(qeth_wq
, &data
->worker
);
1440 struct qeth_bridge_host_data
{
1441 struct work_struct worker
;
1442 struct qeth_card
*card
;
1443 struct qeth_ipacmd_addr_change hostevs
;
1446 static void qeth_bridge_host_event_worker(struct work_struct
*work
)
1448 struct qeth_bridge_host_data
*data
=
1449 container_of(work
, struct qeth_bridge_host_data
, worker
);
1452 if (data
->hostevs
.lost_event_mask
) {
1453 dev_info(&data
->card
->gdev
->dev
,
1454 "Address notification from the Bridge Port stopped %s (%s)\n",
1455 data
->card
->dev
->name
,
1456 (data
->hostevs
.lost_event_mask
== 0x01)
1458 : (data
->hostevs
.lost_event_mask
== 0x02)
1459 ? "Bridge port state change"
1460 : "Unknown reason");
1461 mutex_lock(&data
->card
->conf_mutex
);
1462 data
->card
->options
.sbp
.hostnotification
= 0;
1463 mutex_unlock(&data
->card
->conf_mutex
);
1464 qeth_bridge_emit_host_event(data
->card
, anev_abort
,
1467 for (i
= 0; i
< data
->hostevs
.num_entries
; i
++) {
1468 struct qeth_ipacmd_addr_change_entry
*entry
=
1469 &data
->hostevs
.entry
[i
];
1470 qeth_bridge_emit_host_event(data
->card
,
1473 &entry
->token
, &entry
->addr_lnid
);
1478 static void qeth_bridge_host_event(struct qeth_card
*card
,
1479 struct qeth_ipa_cmd
*cmd
)
1481 struct qeth_ipacmd_addr_change
*hostevs
=
1482 &cmd
->data
.addrchange
;
1483 struct qeth_bridge_host_data
*data
;
1486 QETH_CARD_TEXT(card
, 2, "brhostev");
1487 if (cmd
->hdr
.return_code
!= 0x0000) {
1488 if (cmd
->hdr
.return_code
== 0x0010) {
1489 if (hostevs
->lost_event_mask
== 0x00)
1490 hostevs
->lost_event_mask
= 0xff;
1492 QETH_CARD_TEXT_(card
, 2, "BPHe%04x",
1493 cmd
->hdr
.return_code
);
1497 extrasize
= sizeof(struct qeth_ipacmd_addr_change_entry
) *
1498 hostevs
->num_entries
;
1499 data
= kzalloc(sizeof(struct qeth_bridge_host_data
) + extrasize
,
1502 QETH_CARD_TEXT(card
, 2, "BPHalloc");
1505 INIT_WORK(&data
->worker
, qeth_bridge_host_event_worker
);
1507 memcpy(&data
->hostevs
, hostevs
,
1508 sizeof(struct qeth_ipacmd_addr_change
) + extrasize
);
1509 queue_work(qeth_wq
, &data
->worker
);
1512 /* SETBRIDGEPORT support; sending commands */
1514 struct _qeth_sbp_cbctl
{
1520 enum qeth_sbp_roles
*role
;
1521 enum qeth_sbp_states
*state
;
1527 * qeth_bridgeport_makerc() - derive "traditional" error from hardware codes.
1528 * @card: qeth_card structure pointer, for debug messages.
1529 * @cbctl: state structure with hardware return codes.
1530 * @setcmd: IPA command code
1532 * Returns negative errno-compatible error indication or 0 on success.
1534 static int qeth_bridgeport_makerc(struct qeth_card
*card
,
1535 struct _qeth_sbp_cbctl
*cbctl
, enum qeth_ipa_sbp_cmd setcmd
)
1538 int is_iqd
= (card
->info
.type
== QETH_CARD_TYPE_IQD
);
1540 if ((is_iqd
&& (cbctl
->ipa_rc
== IPA_RC_SUCCESS
)) ||
1541 (!is_iqd
&& (cbctl
->ipa_rc
== cbctl
->cmd_rc
)))
1542 switch (cbctl
->cmd_rc
) {
1543 case IPA_RC_SUCCESS
:
1546 case IPA_RC_L2_UNSUPPORTED_CMD
:
1547 case IPA_RC_UNSUPPORTED_COMMAND
:
1550 case IPA_RC_SBP_OSA_NOT_CONFIGURED
:
1551 case IPA_RC_SBP_IQD_NOT_CONFIGURED
:
1552 rc
= -ENODEV
; /* maybe not the best code here? */
1553 dev_err(&card
->gdev
->dev
,
1554 "The device is not configured as a Bridge Port\n");
1556 case IPA_RC_SBP_OSA_OS_MISMATCH
:
1557 case IPA_RC_SBP_IQD_OS_MISMATCH
:
1559 dev_err(&card
->gdev
->dev
,
1560 "A Bridge Port is already configured by a different operating system\n");
1562 case IPA_RC_SBP_OSA_ANO_DEV_PRIMARY
:
1563 case IPA_RC_SBP_IQD_ANO_DEV_PRIMARY
:
1565 case IPA_SBP_SET_PRIMARY_BRIDGE_PORT
:
1567 dev_err(&card
->gdev
->dev
,
1568 "The LAN already has a primary Bridge Port\n");
1570 case IPA_SBP_SET_SECONDARY_BRIDGE_PORT
:
1572 dev_err(&card
->gdev
->dev
,
1573 "The device is already a primary Bridge Port\n");
1579 case IPA_RC_SBP_OSA_CURRENT_SECOND
:
1580 case IPA_RC_SBP_IQD_CURRENT_SECOND
:
1582 dev_err(&card
->gdev
->dev
,
1583 "The device is already a secondary Bridge Port\n");
1585 case IPA_RC_SBP_OSA_LIMIT_SECOND
:
1586 case IPA_RC_SBP_IQD_LIMIT_SECOND
:
1588 dev_err(&card
->gdev
->dev
,
1589 "The LAN cannot have more secondary Bridge Ports\n");
1591 case IPA_RC_SBP_OSA_CURRENT_PRIMARY
:
1592 case IPA_RC_SBP_IQD_CURRENT_PRIMARY
:
1594 dev_err(&card
->gdev
->dev
,
1595 "The device is already a primary Bridge Port\n");
1597 case IPA_RC_SBP_OSA_NOT_AUTHD_BY_ZMAN
:
1598 case IPA_RC_SBP_IQD_NOT_AUTHD_BY_ZMAN
:
1600 dev_err(&card
->gdev
->dev
,
1601 "The device is not authorized to be a Bridge Port\n");
1607 switch (cbctl
->ipa_rc
) {
1608 case IPA_RC_NOTSUPP
:
1611 case IPA_RC_UNSUPPORTED_COMMAND
:
1619 QETH_CARD_TEXT_(card
, 2, "SBPi%04x", cbctl
->ipa_rc
);
1620 QETH_CARD_TEXT_(card
, 2, "SBPc%04x", cbctl
->cmd_rc
);
1625 static struct qeth_cmd_buffer
*qeth_sbp_build_cmd(struct qeth_card
*card
,
1626 enum qeth_ipa_sbp_cmd sbp_cmd
,
1627 unsigned int cmd_length
)
1629 enum qeth_ipa_cmds ipa_cmd
= (card
->info
.type
== QETH_CARD_TYPE_IQD
) ?
1630 IPA_CMD_SETBRIDGEPORT_IQD
:
1631 IPA_CMD_SETBRIDGEPORT_OSA
;
1632 struct qeth_cmd_buffer
*iob
;
1633 struct qeth_ipa_cmd
*cmd
;
1635 iob
= qeth_get_ipacmd_buffer(card
, ipa_cmd
, 0);
1638 cmd
= __ipa_cmd(iob
);
1639 cmd
->data
.sbp
.hdr
.cmdlength
= sizeof(struct qeth_ipacmd_sbp_hdr
) +
1641 cmd
->data
.sbp
.hdr
.command_code
= sbp_cmd
;
1642 cmd
->data
.sbp
.hdr
.used_total
= 1;
1643 cmd
->data
.sbp
.hdr
.seq_no
= 1;
1647 static int qeth_bridgeport_query_support_cb(struct qeth_card
*card
,
1648 struct qeth_reply
*reply
, unsigned long data
)
1650 struct qeth_ipa_cmd
*cmd
= (struct qeth_ipa_cmd
*) data
;
1651 struct _qeth_sbp_cbctl
*cbctl
= (struct _qeth_sbp_cbctl
*)reply
->param
;
1652 QETH_CARD_TEXT(card
, 2, "brqsupcb");
1653 cbctl
->ipa_rc
= cmd
->hdr
.return_code
;
1654 cbctl
->cmd_rc
= cmd
->data
.sbp
.hdr
.return_code
;
1655 if ((cbctl
->ipa_rc
== 0) && (cbctl
->cmd_rc
== 0)) {
1656 cbctl
->data
.supported
=
1657 cmd
->data
.sbp
.data
.query_cmds_supp
.supported_cmds
;
1659 cbctl
->data
.supported
= 0;
1665 * qeth_bridgeport_query_support() - store bitmask of supported subfunctions.
1666 * @card: qeth_card structure pointer.
1668 * Sets bitmask of supported setbridgeport subfunctions in the qeth_card
1669 * strucutre: card->options.sbp.supported_funcs.
1671 static void qeth_bridgeport_query_support(struct qeth_card
*card
)
1673 struct qeth_cmd_buffer
*iob
;
1674 struct _qeth_sbp_cbctl cbctl
;
1676 QETH_CARD_TEXT(card
, 2, "brqsuppo");
1677 iob
= qeth_sbp_build_cmd(card
, IPA_SBP_QUERY_COMMANDS_SUPPORTED
,
1678 sizeof(struct qeth_sbp_query_cmds_supp
));
1681 if (qeth_send_ipa_cmd(card
, iob
, qeth_bridgeport_query_support_cb
,
1683 qeth_bridgeport_makerc(card
, &cbctl
,
1684 IPA_SBP_QUERY_COMMANDS_SUPPORTED
)) {
1685 /* non-zero makerc signifies failure, and produce messages */
1686 card
->options
.sbp
.role
= QETH_SBP_ROLE_NONE
;
1689 card
->options
.sbp
.supported_funcs
= cbctl
.data
.supported
;
1692 static int qeth_bridgeport_query_ports_cb(struct qeth_card
*card
,
1693 struct qeth_reply
*reply
, unsigned long data
)
1695 struct qeth_ipa_cmd
*cmd
= (struct qeth_ipa_cmd
*) data
;
1696 struct qeth_sbp_query_ports
*qports
= &cmd
->data
.sbp
.data
.query_ports
;
1697 struct _qeth_sbp_cbctl
*cbctl
= (struct _qeth_sbp_cbctl
*)reply
->param
;
1699 QETH_CARD_TEXT(card
, 2, "brqprtcb");
1700 cbctl
->ipa_rc
= cmd
->hdr
.return_code
;
1701 cbctl
->cmd_rc
= cmd
->data
.sbp
.hdr
.return_code
;
1702 if ((cbctl
->ipa_rc
!= 0) || (cbctl
->cmd_rc
!= 0))
1704 if (qports
->entry_length
!= sizeof(struct qeth_sbp_port_entry
)) {
1705 cbctl
->cmd_rc
= 0xffff;
1706 QETH_CARD_TEXT_(card
, 2, "SBPs%04x", qports
->entry_length
);
1709 /* first entry contains the state of the local port */
1710 if (qports
->num_entries
> 0) {
1711 if (cbctl
->data
.qports
.role
)
1712 *cbctl
->data
.qports
.role
= qports
->entry
[0].role
;
1713 if (cbctl
->data
.qports
.state
)
1714 *cbctl
->data
.qports
.state
= qports
->entry
[0].state
;
1720 * qeth_bridgeport_query_ports() - query local bridgeport status.
1721 * @card: qeth_card structure pointer.
1722 * @role: Role of the port: 0-none, 1-primary, 2-secondary.
1723 * @state: State of the port: 0-inactive, 1-standby, 2-active.
1725 * Returns negative errno-compatible error indication or 0 on success.
1727 * 'role' and 'state' are not updated in case of hardware operation failure.
1729 int qeth_bridgeport_query_ports(struct qeth_card
*card
,
1730 enum qeth_sbp_roles
*role
, enum qeth_sbp_states
*state
)
1733 struct qeth_cmd_buffer
*iob
;
1734 struct _qeth_sbp_cbctl cbctl
= {
1743 QETH_CARD_TEXT(card
, 2, "brqports");
1744 if (!(card
->options
.sbp
.supported_funcs
& IPA_SBP_QUERY_BRIDGE_PORTS
))
1746 iob
= qeth_sbp_build_cmd(card
, IPA_SBP_QUERY_BRIDGE_PORTS
, 0);
1749 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_bridgeport_query_ports_cb
,
1753 return qeth_bridgeport_makerc(card
, &cbctl
, IPA_SBP_QUERY_BRIDGE_PORTS
);
1756 static int qeth_bridgeport_set_cb(struct qeth_card
*card
,
1757 struct qeth_reply
*reply
, unsigned long data
)
1759 struct qeth_ipa_cmd
*cmd
= (struct qeth_ipa_cmd
*)data
;
1760 struct _qeth_sbp_cbctl
*cbctl
= (struct _qeth_sbp_cbctl
*)reply
->param
;
1761 QETH_CARD_TEXT(card
, 2, "brsetrcb");
1762 cbctl
->ipa_rc
= cmd
->hdr
.return_code
;
1763 cbctl
->cmd_rc
= cmd
->data
.sbp
.hdr
.return_code
;
1768 * qeth_bridgeport_setrole() - Assign primary role to the port.
1769 * @card: qeth_card structure pointer.
1770 * @role: Role to assign.
1772 * Returns negative errno-compatible error indication or 0 on success.
1774 int qeth_bridgeport_setrole(struct qeth_card
*card
, enum qeth_sbp_roles role
)
1778 struct qeth_cmd_buffer
*iob
;
1779 struct _qeth_sbp_cbctl cbctl
;
1780 enum qeth_ipa_sbp_cmd setcmd
;
1782 QETH_CARD_TEXT(card
, 2, "brsetrol");
1784 case QETH_SBP_ROLE_NONE
:
1785 setcmd
= IPA_SBP_RESET_BRIDGE_PORT_ROLE
;
1786 cmdlength
= sizeof(struct qeth_sbp_reset_role
);
1788 case QETH_SBP_ROLE_PRIMARY
:
1789 setcmd
= IPA_SBP_SET_PRIMARY_BRIDGE_PORT
;
1790 cmdlength
= sizeof(struct qeth_sbp_set_primary
);
1792 case QETH_SBP_ROLE_SECONDARY
:
1793 setcmd
= IPA_SBP_SET_SECONDARY_BRIDGE_PORT
;
1794 cmdlength
= sizeof(struct qeth_sbp_set_secondary
);
1799 if (!(card
->options
.sbp
.supported_funcs
& setcmd
))
1801 iob
= qeth_sbp_build_cmd(card
, setcmd
, cmdlength
);
1804 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_bridgeport_set_cb
,
1808 return qeth_bridgeport_makerc(card
, &cbctl
, setcmd
);
1812 * qeth_anset_makerc() - derive "traditional" error from hardware codes.
1813 * @card: qeth_card structure pointer, for debug messages.
1815 * Returns negative errno-compatible error indication or 0 on success.
1817 static int qeth_anset_makerc(struct qeth_card
*card
, int pnso_rc
, u16 response
)
1830 dev_err(&card
->gdev
->dev
,
1831 "Setting address notification failed\n");
1843 QETH_CARD_TEXT_(card
, 2, "SBPp%04x", pnso_rc
);
1844 QETH_CARD_TEXT_(card
, 2, "SBPr%04x", response
);
1849 static void qeth_bridgeport_an_set_cb(void *priv
,
1850 enum qdio_brinfo_entry_type type
, void *entry
)
1852 struct qeth_card
*card
= (struct qeth_card
*)priv
;
1853 struct qdio_brinfo_entry_l2
*l2entry
;
1856 if (type
!= l2_addr_lnid
) {
1861 l2entry
= (struct qdio_brinfo_entry_l2
*)entry
;
1862 code
= IPA_ADDR_CHANGE_CODE_MACADDR
;
1863 if (l2entry
->addr_lnid
.lnid
)
1864 code
|= IPA_ADDR_CHANGE_CODE_VLANID
;
1865 qeth_bridge_emit_host_event(card
, anev_reg_unreg
, code
,
1866 (struct net_if_token
*)&l2entry
->nit
,
1867 (struct mac_addr_lnid
*)&l2entry
->addr_lnid
);
1871 * qeth_bridgeport_an_set() - Enable or disable bridgeport address notification
1872 * @card: qeth_card structure pointer.
1873 * @enable: 0 - disable, non-zero - enable notifications
1875 * Returns negative errno-compatible error indication or 0 on success.
1877 * On enable, emits a series of address notifications udev events for all
1878 * currently registered hosts.
1880 int qeth_bridgeport_an_set(struct qeth_card
*card
, int enable
)
1884 struct ccw_device
*ddev
;
1885 struct subchannel_id schid
;
1889 if (!card
->options
.sbp
.supported_funcs
)
1891 ddev
= CARD_DDEV(card
);
1892 ccw_device_get_schid(ddev
, &schid
);
1895 qeth_bridge_emit_host_event(card
, anev_reset
, 0, NULL
, NULL
);
1896 rc
= qdio_pnso_brinfo(schid
, 1, &response
,
1897 qeth_bridgeport_an_set_cb
, card
);
1899 rc
= qdio_pnso_brinfo(schid
, 0, &response
, NULL
, NULL
);
1900 return qeth_anset_makerc(card
, rc
, response
);
1903 static bool qeth_bridgeport_is_in_use(struct qeth_card
*card
)
1905 return (card
->options
.sbp
.role
|| card
->options
.sbp
.reflect_promisc
||
1906 card
->options
.sbp
.hostnotification
);
1909 /* VNIC Characteristics support */
1911 /* handle VNICC IPA command return codes; convert to error codes */
1912 static int qeth_l2_vnicc_makerc(struct qeth_card
*card
, int ipa_rc
)
1917 case IPA_RC_SUCCESS
:
1919 case IPA_RC_L2_UNSUPPORTED_CMD
:
1920 case IPA_RC_NOTSUPP
:
1923 case IPA_RC_VNICC_OOSEQ
:
1926 case IPA_RC_VNICC_VNICBP
:
1929 case IPA_RC_L2_ADDR_TABLE_FULL
:
1932 case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP
:
1939 QETH_CARD_TEXT_(card
, 2, "err%04x", ipa_rc
);
1943 /* generic VNICC request call back control */
1944 struct _qeth_l2_vnicc_request_cbctl
{
1958 /* generic VNICC request call back */
1959 static int qeth_l2_vnicc_request_cb(struct qeth_card
*card
,
1960 struct qeth_reply
*reply
,
1963 struct _qeth_l2_vnicc_request_cbctl
*cbctl
=
1964 (struct _qeth_l2_vnicc_request_cbctl
*) reply
->param
;
1965 struct qeth_ipa_cmd
*cmd
= (struct qeth_ipa_cmd
*) data
;
1966 struct qeth_ipacmd_vnicc
*rep
= &cmd
->data
.vnicc
;
1968 QETH_CARD_TEXT(card
, 2, "vniccrcb");
1969 if (cmd
->hdr
.return_code
)
1971 /* return results to caller */
1972 card
->options
.vnicc
.sup_chars
= rep
->hdr
.sup
;
1973 card
->options
.vnicc
.cur_chars
= rep
->hdr
.cur
;
1975 if (cbctl
->sub_cmd
== IPA_VNICC_QUERY_CMDS
)
1976 *cbctl
->result
.sup_cmds
= rep
->query_cmds
.sup_cmds
;
1978 if (cbctl
->sub_cmd
== IPA_VNICC_GET_TIMEOUT
)
1979 *cbctl
->result
.timeout
= rep
->getset_timeout
.timeout
;
1984 /* generic VNICC request */
1985 static int qeth_l2_vnicc_request(struct qeth_card
*card
,
1986 struct _qeth_l2_vnicc_request_cbctl
*cbctl
)
1988 struct qeth_ipacmd_vnicc
*req
;
1989 struct qeth_cmd_buffer
*iob
;
1990 struct qeth_ipa_cmd
*cmd
;
1993 QETH_CARD_TEXT(card
, 2, "vniccreq");
1995 /* get new buffer for request */
1996 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_VNICC
, 0);
2000 /* create header for request */
2001 cmd
= __ipa_cmd(iob
);
2002 req
= &cmd
->data
.vnicc
;
2004 /* create sub command header for request */
2005 req
->sub_hdr
.data_length
= sizeof(req
->sub_hdr
);
2006 req
->sub_hdr
.sub_command
= cbctl
->sub_cmd
;
2008 /* create sub command specific request fields */
2009 switch (cbctl
->sub_cmd
) {
2010 case IPA_VNICC_QUERY_CHARS
:
2012 case IPA_VNICC_QUERY_CMDS
:
2013 req
->sub_hdr
.data_length
+= sizeof(req
->query_cmds
);
2014 req
->query_cmds
.vnic_char
= cbctl
->param
.vnic_char
;
2016 case IPA_VNICC_ENABLE
:
2017 case IPA_VNICC_DISABLE
:
2018 req
->sub_hdr
.data_length
+= sizeof(req
->set_char
);
2019 req
->set_char
.vnic_char
= cbctl
->param
.vnic_char
;
2021 case IPA_VNICC_SET_TIMEOUT
:
2022 req
->getset_timeout
.timeout
= cbctl
->param
.timeout
;
2024 case IPA_VNICC_GET_TIMEOUT
:
2025 req
->sub_hdr
.data_length
+= sizeof(req
->getset_timeout
);
2026 req
->getset_timeout
.vnic_char
= cbctl
->param
.vnic_char
;
2029 qeth_release_buffer(iob
->channel
, iob
);
2034 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_l2_vnicc_request_cb
,
2037 return qeth_l2_vnicc_makerc(card
, rc
);
2040 /* VNICC query VNIC characteristics request */
2041 static int qeth_l2_vnicc_query_chars(struct qeth_card
*card
)
2043 struct _qeth_l2_vnicc_request_cbctl cbctl
;
2045 /* prepare callback control */
2046 cbctl
.sub_cmd
= IPA_VNICC_QUERY_CHARS
;
2048 QETH_CARD_TEXT(card
, 2, "vniccqch");
2049 return qeth_l2_vnicc_request(card
, &cbctl
);
2052 /* VNICC query sub commands request */
2053 static int qeth_l2_vnicc_query_cmds(struct qeth_card
*card
, u32 vnic_char
,
2056 struct _qeth_l2_vnicc_request_cbctl cbctl
;
2058 /* prepare callback control */
2059 cbctl
.sub_cmd
= IPA_VNICC_QUERY_CMDS
;
2060 cbctl
.param
.vnic_char
= vnic_char
;
2061 cbctl
.result
.sup_cmds
= sup_cmds
;
2063 QETH_CARD_TEXT(card
, 2, "vniccqcm");
2064 return qeth_l2_vnicc_request(card
, &cbctl
);
2067 /* VNICC enable/disable characteristic request */
2068 static int qeth_l2_vnicc_set_char(struct qeth_card
*card
, u32 vnic_char
,
2071 struct _qeth_l2_vnicc_request_cbctl cbctl
;
2073 /* prepare callback control */
2074 cbctl
.sub_cmd
= cmd
;
2075 cbctl
.param
.vnic_char
= vnic_char
;
2077 QETH_CARD_TEXT(card
, 2, "vniccedc");
2078 return qeth_l2_vnicc_request(card
, &cbctl
);
2081 /* VNICC get/set timeout for characteristic request */
2082 static int qeth_l2_vnicc_getset_timeout(struct qeth_card
*card
, u32 vnicc
,
2083 u32 cmd
, u32
*timeout
)
2085 struct _qeth_l2_vnicc_request_cbctl cbctl
;
2087 /* prepare callback control */
2088 cbctl
.sub_cmd
= cmd
;
2089 cbctl
.param
.vnic_char
= vnicc
;
2090 if (cmd
== IPA_VNICC_SET_TIMEOUT
)
2091 cbctl
.param
.timeout
= *timeout
;
2092 if (cmd
== IPA_VNICC_GET_TIMEOUT
)
2093 cbctl
.result
.timeout
= timeout
;
2095 QETH_CARD_TEXT(card
, 2, "vniccgst");
2096 return qeth_l2_vnicc_request(card
, &cbctl
);
2099 /* set current VNICC flag state; called from sysfs store function */
2100 int qeth_l2_vnicc_set_state(struct qeth_card
*card
, u32 vnicc
, bool state
)
2105 QETH_CARD_TEXT(card
, 2, "vniccsch");
2107 /* do not change anything if BridgePort is enabled */
2108 if (qeth_bridgeport_is_in_use(card
))
2111 /* check if characteristic and enable/disable are supported */
2112 if (!(card
->options
.vnicc
.sup_chars
& vnicc
) ||
2113 !(card
->options
.vnicc
.set_char_sup
& vnicc
))
2116 /* set enable/disable command and store wanted characteristic */
2118 cmd
= IPA_VNICC_ENABLE
;
2119 card
->options
.vnicc
.wanted_chars
|= vnicc
;
2121 cmd
= IPA_VNICC_DISABLE
;
2122 card
->options
.vnicc
.wanted_chars
&= ~vnicc
;
2125 /* do we need to do anything? */
2126 if (card
->options
.vnicc
.cur_chars
== card
->options
.vnicc
.wanted_chars
)
2129 /* if card is not ready, simply stop here */
2130 if (!qeth_card_hw_is_reachable(card
)) {
2132 card
->options
.vnicc
.cur_chars
|= vnicc
;
2134 card
->options
.vnicc
.cur_chars
&= ~vnicc
;
2138 rc
= qeth_l2_vnicc_set_char(card
, vnicc
, cmd
);
2140 card
->options
.vnicc
.wanted_chars
=
2141 card
->options
.vnicc
.cur_chars
;
2143 /* successful online VNICC change; handle special cases */
2144 if (state
&& vnicc
== QETH_VNICC_RX_BCAST
)
2145 card
->options
.vnicc
.rx_bcast_enabled
= true;
2146 if (!state
&& vnicc
== QETH_VNICC_LEARNING
)
2147 qeth_l2_vnicc_recover_timeout(card
, vnicc
,
2148 &card
->options
.vnicc
.learning_timeout
);
2154 /* get current VNICC flag state; called from sysfs show function */
2155 int qeth_l2_vnicc_get_state(struct qeth_card
*card
, u32 vnicc
, bool *state
)
2159 QETH_CARD_TEXT(card
, 2, "vniccgch");
2161 /* do not get anything if BridgePort is enabled */
2162 if (qeth_bridgeport_is_in_use(card
))
2165 /* check if characteristic is supported */
2166 if (!(card
->options
.vnicc
.sup_chars
& vnicc
))
2169 /* if card is ready, query current VNICC state */
2170 if (qeth_card_hw_is_reachable(card
))
2171 rc
= qeth_l2_vnicc_query_chars(card
);
2173 *state
= (card
->options
.vnicc
.cur_chars
& vnicc
) ? true : false;
2177 /* set VNICC timeout; called from sysfs store function. Currently, only learning
2180 int qeth_l2_vnicc_set_timeout(struct qeth_card
*card
, u32 timeout
)
2184 QETH_CARD_TEXT(card
, 2, "vniccsto");
2186 /* do not change anything if BridgePort is enabled */
2187 if (qeth_bridgeport_is_in_use(card
))
2190 /* check if characteristic and set_timeout are supported */
2191 if (!(card
->options
.vnicc
.sup_chars
& QETH_VNICC_LEARNING
) ||
2192 !(card
->options
.vnicc
.getset_timeout_sup
& QETH_VNICC_LEARNING
))
2195 /* do we need to do anything? */
2196 if (card
->options
.vnicc
.learning_timeout
== timeout
)
2199 /* if card is not ready, simply store the value internally and return */
2200 if (!qeth_card_hw_is_reachable(card
)) {
2201 card
->options
.vnicc
.learning_timeout
= timeout
;
2205 /* send timeout value to card; if successful, store value internally */
2206 rc
= qeth_l2_vnicc_getset_timeout(card
, QETH_VNICC_LEARNING
,
2207 IPA_VNICC_SET_TIMEOUT
, &timeout
);
2209 card
->options
.vnicc
.learning_timeout
= timeout
;
2214 /* get current VNICC timeout; called from sysfs show function. Currently, only
2215 * learning supports timeout
2217 int qeth_l2_vnicc_get_timeout(struct qeth_card
*card
, u32
*timeout
)
2221 QETH_CARD_TEXT(card
, 2, "vniccgto");
2223 /* do not get anything if BridgePort is enabled */
2224 if (qeth_bridgeport_is_in_use(card
))
2227 /* check if characteristic and get_timeout are supported */
2228 if (!(card
->options
.vnicc
.sup_chars
& QETH_VNICC_LEARNING
) ||
2229 !(card
->options
.vnicc
.getset_timeout_sup
& QETH_VNICC_LEARNING
))
2231 /* if card is ready, get timeout. Otherwise, just return stored value */
2232 *timeout
= card
->options
.vnicc
.learning_timeout
;
2233 if (qeth_card_hw_is_reachable(card
))
2234 rc
= qeth_l2_vnicc_getset_timeout(card
, QETH_VNICC_LEARNING
,
2235 IPA_VNICC_GET_TIMEOUT
,
2241 /* check if VNICC is currently enabled */
2242 bool qeth_l2_vnicc_is_in_use(struct qeth_card
*card
)
2244 /* if everything is turned off, VNICC is not active */
2245 if (!card
->options
.vnicc
.cur_chars
)
2247 /* default values are only OK if rx_bcast was not enabled by user
2248 * or the card is offline.
2250 if (card
->options
.vnicc
.cur_chars
== QETH_VNICC_DEFAULT
) {
2251 if (!card
->options
.vnicc
.rx_bcast_enabled
||
2252 !qeth_card_hw_is_reachable(card
))
2258 /* recover user timeout setting */
2259 static bool qeth_l2_vnicc_recover_timeout(struct qeth_card
*card
, u32 vnicc
,
2262 if (card
->options
.vnicc
.sup_chars
& vnicc
&&
2263 card
->options
.vnicc
.getset_timeout_sup
& vnicc
&&
2264 !qeth_l2_vnicc_getset_timeout(card
, vnicc
, IPA_VNICC_SET_TIMEOUT
,
2267 *timeout
= QETH_VNICC_DEFAULT_TIMEOUT
;
2271 /* recover user characteristic setting */
2272 static bool qeth_l2_vnicc_recover_char(struct qeth_card
*card
, u32 vnicc
,
2275 u32 cmd
= enable
? IPA_VNICC_ENABLE
: IPA_VNICC_DISABLE
;
2277 if (card
->options
.vnicc
.sup_chars
& vnicc
&&
2278 card
->options
.vnicc
.set_char_sup
& vnicc
&&
2279 !qeth_l2_vnicc_set_char(card
, vnicc
, cmd
))
2281 card
->options
.vnicc
.wanted_chars
&= ~vnicc
;
2282 card
->options
.vnicc
.wanted_chars
|= QETH_VNICC_DEFAULT
& vnicc
;
2286 /* (re-)initialize VNICC */
2287 static void qeth_l2_vnicc_init(struct qeth_card
*card
)
2289 u32
*timeout
= &card
->options
.vnicc
.learning_timeout
;
2290 unsigned int chars_len
, i
;
2291 unsigned long chars_tmp
;
2292 u32 sup_cmds
, vnicc
;
2295 QETH_CARD_TEXT(card
, 2, "vniccini");
2296 /* reset rx_bcast */
2297 card
->options
.vnicc
.rx_bcast_enabled
= 0;
2298 /* initial query and storage of VNIC characteristics */
2299 if (qeth_l2_vnicc_query_chars(card
)) {
2300 if (card
->options
.vnicc
.wanted_chars
!= QETH_VNICC_DEFAULT
||
2301 *timeout
!= QETH_VNICC_DEFAULT_TIMEOUT
)
2302 dev_err(&card
->gdev
->dev
, "Configuring the VNIC characteristics failed\n");
2303 /* fail quietly if user didn't change the default config */
2304 card
->options
.vnicc
.sup_chars
= 0;
2305 card
->options
.vnicc
.cur_chars
= 0;
2306 card
->options
.vnicc
.wanted_chars
= QETH_VNICC_DEFAULT
;
2309 /* get supported commands for each supported characteristic */
2310 chars_tmp
= card
->options
.vnicc
.sup_chars
;
2311 chars_len
= sizeof(card
->options
.vnicc
.sup_chars
) * BITS_PER_BYTE
;
2312 for_each_set_bit(i
, &chars_tmp
, chars_len
) {
2314 qeth_l2_vnicc_query_cmds(card
, vnicc
, &sup_cmds
);
2315 if (!(sup_cmds
& IPA_VNICC_SET_TIMEOUT
) ||
2316 !(sup_cmds
& IPA_VNICC_GET_TIMEOUT
))
2317 card
->options
.vnicc
.getset_timeout_sup
&= ~vnicc
;
2318 if (!(sup_cmds
& IPA_VNICC_ENABLE
) ||
2319 !(sup_cmds
& IPA_VNICC_DISABLE
))
2320 card
->options
.vnicc
.set_char_sup
&= ~vnicc
;
2322 /* enforce assumed default values and recover settings, if changed */
2323 error
= qeth_l2_vnicc_recover_timeout(card
, QETH_VNICC_LEARNING
,
2325 chars_tmp
= card
->options
.vnicc
.wanted_chars
^ QETH_VNICC_DEFAULT
;
2326 chars_tmp
|= QETH_VNICC_BRIDGE_INVISIBLE
;
2327 chars_len
= sizeof(card
->options
.vnicc
.wanted_chars
) * BITS_PER_BYTE
;
2328 for_each_set_bit(i
, &chars_tmp
, chars_len
) {
2330 enable
= card
->options
.vnicc
.wanted_chars
& vnicc
;
2331 error
|= qeth_l2_vnicc_recover_char(card
, vnicc
, enable
);
2334 dev_err(&card
->gdev
->dev
, "Configuring the VNIC characteristics failed\n");
2337 /* configure default values of VNIC characteristics */
2338 static void qeth_l2_vnicc_set_defaults(struct qeth_card
*card
)
2340 /* characteristics values */
2341 card
->options
.vnicc
.sup_chars
= QETH_VNICC_ALL
;
2342 card
->options
.vnicc
.cur_chars
= QETH_VNICC_DEFAULT
;
2343 card
->options
.vnicc
.learning_timeout
= QETH_VNICC_DEFAULT_TIMEOUT
;
2344 /* supported commands */
2345 card
->options
.vnicc
.set_char_sup
= QETH_VNICC_ALL
;
2346 card
->options
.vnicc
.getset_timeout_sup
= QETH_VNICC_LEARNING
;
2347 /* settings wanted by users */
2348 card
->options
.vnicc
.wanted_chars
= QETH_VNICC_DEFAULT
;
2351 module_init(qeth_l2_init
);
2352 module_exit(qeth_l2_exit
);
2353 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
2354 MODULE_DESCRIPTION("qeth layer 2 discipline");
2355 MODULE_LICENSE("GPL");