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
);
373 flush_workqueue(card
->event_wq
);
376 static int qeth_l2_process_inbound_buffer(struct qeth_card
*card
,
377 int budget
, int *done
)
381 struct qeth_hdr
*hdr
;
385 WARN_ON_ONCE(!budget
);
387 skb
= qeth_core_get_next_skb(card
,
388 &card
->qdio
.in_q
->bufs
[card
->rx
.b_index
],
389 &card
->rx
.b_element
, &card
->rx
.e_offset
, &hdr
);
394 switch (hdr
->hdr
.l2
.id
) {
395 case QETH_HEADER_TYPE_LAYER2
:
396 skb
->protocol
= eth_type_trans(skb
, skb
->dev
);
397 qeth_rx_csum(card
, skb
, hdr
->hdr
.l2
.flags
[1]);
398 if (skb
->protocol
== htons(ETH_P_802_2
))
399 *((__u32
*)skb
->cb
) = ++card
->seqno
.pkt_seqno
;
401 napi_gro_receive(&card
->napi
, skb
);
403 case QETH_HEADER_TYPE_OSN
:
404 if (card
->info
.type
== QETH_CARD_TYPE_OSN
) {
405 skb_push(skb
, sizeof(struct qeth_hdr
));
406 skb_copy_to_linear_data(skb
, hdr
,
407 sizeof(struct qeth_hdr
));
409 card
->osn_info
.data_cb(skb
);
414 dev_kfree_skb_any(skb
);
415 QETH_CARD_TEXT(card
, 3, "inbunkno");
416 QETH_DBF_HEX(CTRL
, 3, hdr
, sizeof(*hdr
));
421 card
->stats
.rx_packets
++;
422 card
->stats
.rx_bytes
+= len
;
427 static int qeth_l2_request_initial_mac(struct qeth_card
*card
)
431 QETH_DBF_TEXT(SETUP
, 2, "l2reqmac");
432 QETH_DBF_TEXT_(SETUP
, 2, "doL2%s", CARD_BUS_ID(card
));
435 rc
= qeth_vm_request_mac(card
);
438 QETH_DBF_MESSAGE(2, "z/VM MAC Service failed on device %x: %#x\n",
439 CARD_DEVID(card
), rc
);
440 QETH_DBF_TEXT_(SETUP
, 2, "err%04x", rc
);
441 /* fall back to alternative mechanism: */
445 rc
= qeth_setadpparms_change_macaddr(card
);
446 if (!rc
&& is_valid_ether_addr(card
->dev
->dev_addr
))
448 QETH_DBF_MESSAGE(2, "READ_MAC Assist failed on device %x: %#x\n",
449 CARD_DEVID(card
), rc
);
450 QETH_DBF_TEXT_(SETUP
, 2, "1err%04x", rc
);
451 /* fall back once more: */
454 /* some devices don't support a custom MAC address: */
455 if (card
->info
.type
== QETH_CARD_TYPE_OSM
||
456 card
->info
.type
== QETH_CARD_TYPE_OSX
)
457 return (rc
) ? rc
: -EADDRNOTAVAIL
;
458 eth_hw_addr_random(card
->dev
);
461 QETH_DBF_HEX(SETUP
, 2, card
->dev
->dev_addr
, card
->dev
->addr_len
);
465 static int qeth_l2_set_mac_address(struct net_device
*dev
, void *p
)
467 struct sockaddr
*addr
= p
;
468 struct qeth_card
*card
= dev
->ml_priv
;
469 u8 old_addr
[ETH_ALEN
];
472 QETH_CARD_TEXT(card
, 3, "setmac");
474 if (card
->info
.type
== QETH_CARD_TYPE_OSN
||
475 card
->info
.type
== QETH_CARD_TYPE_OSM
||
476 card
->info
.type
== QETH_CARD_TYPE_OSX
) {
477 QETH_CARD_TEXT(card
, 3, "setmcTYP");
480 QETH_CARD_HEX(card
, 3, addr
->sa_data
, ETH_ALEN
);
481 if (!is_valid_ether_addr(addr
->sa_data
))
482 return -EADDRNOTAVAIL
;
484 if (qeth_wait_for_threads(card
, QETH_RECOVER_THREAD
)) {
485 QETH_CARD_TEXT(card
, 3, "setmcREC");
489 /* avoid racing against concurrent state change: */
490 if (!mutex_trylock(&card
->conf_mutex
))
493 if (!qeth_card_hw_is_reachable(card
)) {
494 ether_addr_copy(dev
->dev_addr
, addr
->sa_data
);
498 /* don't register the same address twice */
499 if (ether_addr_equal_64bits(dev
->dev_addr
, addr
->sa_data
) &&
500 (card
->info
.mac_bits
& QETH_LAYER2_MAC_REGISTERED
))
503 /* add the new address, switch over, drop the old */
504 rc
= qeth_l2_send_setmac(card
, addr
->sa_data
);
507 ether_addr_copy(old_addr
, dev
->dev_addr
);
508 ether_addr_copy(dev
->dev_addr
, addr
->sa_data
);
510 if (card
->info
.mac_bits
& QETH_LAYER2_MAC_REGISTERED
)
511 qeth_l2_remove_mac(card
, old_addr
);
512 card
->info
.mac_bits
|= QETH_LAYER2_MAC_REGISTERED
;
515 mutex_unlock(&card
->conf_mutex
);
519 static void qeth_promisc_to_bridge(struct qeth_card
*card
)
521 struct net_device
*dev
= card
->dev
;
522 enum qeth_ipa_promisc_modes promisc_mode
;
526 QETH_CARD_TEXT(card
, 3, "pmisc2br");
528 if (!card
->options
.sbp
.reflect_promisc
)
530 promisc_mode
= (dev
->flags
& IFF_PROMISC
) ? SET_PROMISC_MODE_ON
531 : SET_PROMISC_MODE_OFF
;
532 if (promisc_mode
== card
->info
.promisc_mode
)
535 if (promisc_mode
== SET_PROMISC_MODE_ON
) {
536 if (card
->options
.sbp
.reflect_promisc_primary
)
537 role
= QETH_SBP_ROLE_PRIMARY
;
539 role
= QETH_SBP_ROLE_SECONDARY
;
541 role
= QETH_SBP_ROLE_NONE
;
543 rc
= qeth_bridgeport_setrole(card
, role
);
544 QETH_DBF_TEXT_(SETUP
, 2, "bpm%c%04x",
545 (promisc_mode
== SET_PROMISC_MODE_ON
) ? '+' : '-', rc
);
547 card
->options
.sbp
.role
= role
;
548 card
->info
.promisc_mode
= promisc_mode
;
552 /* New MAC address is added to the hash table and marked to be written on card
553 * only if there is not in the hash table storage already
556 static void qeth_l2_add_mac(struct qeth_card
*card
, struct netdev_hw_addr
*ha
)
558 u32 mac_hash
= get_unaligned((u32
*)(&ha
->addr
[2]));
559 struct qeth_mac
*mac
;
561 hash_for_each_possible(card
->mac_htable
, mac
, hnode
, mac_hash
) {
562 if (ether_addr_equal_64bits(ha
->addr
, mac
->mac_addr
)) {
563 mac
->disp_flag
= QETH_DISP_ADDR_DO_NOTHING
;
568 mac
= kzalloc(sizeof(struct qeth_mac
), GFP_ATOMIC
);
572 ether_addr_copy(mac
->mac_addr
, ha
->addr
);
573 mac
->disp_flag
= QETH_DISP_ADDR_ADD
;
575 hash_add(card
->mac_htable
, &mac
->hnode
, mac_hash
);
578 static void qeth_l2_set_rx_mode(struct net_device
*dev
)
580 struct qeth_card
*card
= dev
->ml_priv
;
581 struct netdev_hw_addr
*ha
;
582 struct qeth_mac
*mac
;
583 struct hlist_node
*tmp
;
587 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
590 QETH_CARD_TEXT(card
, 3, "setmulti");
591 if (qeth_threads_running(card
, QETH_RECOVER_THREAD
) &&
592 (card
->state
!= CARD_STATE_UP
))
595 spin_lock_bh(&card
->mclock
);
597 netdev_for_each_mc_addr(ha
, dev
)
598 qeth_l2_add_mac(card
, ha
);
599 netdev_for_each_uc_addr(ha
, dev
)
600 qeth_l2_add_mac(card
, ha
);
602 hash_for_each_safe(card
->mac_htable
, i
, tmp
, mac
, hnode
) {
603 switch (mac
->disp_flag
) {
604 case QETH_DISP_ADDR_DELETE
:
605 qeth_l2_remove_mac(card
, mac
->mac_addr
);
606 hash_del(&mac
->hnode
);
609 case QETH_DISP_ADDR_ADD
:
610 rc
= qeth_l2_write_mac(card
, mac
->mac_addr
);
612 hash_del(&mac
->hnode
);
618 /* for next call to set_rx_mode(): */
619 mac
->disp_flag
= QETH_DISP_ADDR_DELETE
;
623 spin_unlock_bh(&card
->mclock
);
625 if (qeth_adp_supported(card
, IPA_SETADP_SET_PROMISC_MODE
))
626 qeth_setadp_promisc_mode(card
);
628 qeth_promisc_to_bridge(card
);
631 static int qeth_l2_xmit_osn(struct qeth_card
*card
, struct sk_buff
*skb
,
632 struct qeth_qdio_out_q
*queue
)
634 struct qeth_hdr
*hdr
= (struct qeth_hdr
*)skb
->data
;
635 addr_t end
= (addr_t
)(skb
->data
+ sizeof(*hdr
));
636 addr_t start
= (addr_t
)skb
->data
;
637 unsigned int elements
= 0;
638 unsigned int hd_len
= 0;
641 if (skb
->protocol
== htons(ETH_P_IPV6
))
642 return -EPROTONOSUPPORT
;
644 if (qeth_get_elements_for_range(start
, end
) > 1) {
645 /* Misaligned HW header, move it to its own buffer element. */
646 hdr
= kmem_cache_alloc(qeth_core_header_cache
, GFP_ATOMIC
);
649 hd_len
= sizeof(*hdr
);
650 skb_copy_from_linear_data(skb
, (char *)hdr
, hd_len
);
654 elements
+= qeth_count_elements(skb
, hd_len
);
655 if (elements
> QETH_MAX_BUFFER_ELEMENTS(card
)) {
660 rc
= qeth_do_send_packet(card
, queue
, skb
, hdr
, hd_len
, hd_len
,
664 kmem_cache_free(qeth_core_header_cache
, hdr
);
668 static netdev_tx_t
qeth_l2_hard_start_xmit(struct sk_buff
*skb
,
669 struct net_device
*dev
)
671 struct qeth_card
*card
= dev
->ml_priv
;
672 int cast_type
= qeth_l2_get_cast_type(card
, skb
);
673 int ipv
= qeth_get_ip_version(skb
);
674 struct qeth_qdio_out_q
*queue
;
675 int tx_bytes
= skb
->len
;
678 if (card
->state
!= CARD_STATE_UP
) {
679 card
->stats
.tx_carrier_errors
++;
683 queue
= qeth_get_tx_queue(card
, skb
, ipv
, cast_type
);
685 if (card
->options
.performance_stats
) {
686 card
->perf_stats
.outbound_cnt
++;
687 card
->perf_stats
.outbound_start_time
= qeth_get_micros();
689 netif_stop_queue(dev
);
692 rc
= qeth_l2_xmit_osn(card
, skb
, queue
);
694 rc
= qeth_xmit(card
, skb
, queue
, ipv
, cast_type
,
695 qeth_l2_fill_header
);
698 card
->stats
.tx_packets
++;
699 card
->stats
.tx_bytes
+= tx_bytes
;
700 if (card
->options
.performance_stats
)
701 card
->perf_stats
.outbound_time
+= qeth_get_micros() -
702 card
->perf_stats
.outbound_start_time
;
703 netif_wake_queue(dev
);
705 } else if (rc
== -EBUSY
) {
706 return NETDEV_TX_BUSY
;
707 } /* else fall through */
710 card
->stats
.tx_dropped
++;
711 card
->stats
.tx_errors
++;
712 dev_kfree_skb_any(skb
);
713 netif_wake_queue(dev
);
717 static int __qeth_l2_open(struct net_device
*dev
)
719 struct qeth_card
*card
= dev
->ml_priv
;
722 QETH_CARD_TEXT(card
, 4, "qethopen");
723 if (card
->state
== CARD_STATE_UP
)
725 if (card
->state
!= CARD_STATE_SOFTSETUP
)
728 if ((card
->info
.type
!= QETH_CARD_TYPE_OSN
) &&
729 (!(card
->info
.mac_bits
& QETH_LAYER2_MAC_REGISTERED
))) {
730 QETH_CARD_TEXT(card
, 4, "nomacadr");
733 card
->data
.state
= CH_STATE_UP
;
734 card
->state
= CARD_STATE_UP
;
735 netif_start_queue(dev
);
737 if (qdio_stop_irq(card
->data
.ccwdev
, 0) >= 0) {
738 napi_enable(&card
->napi
);
740 napi_schedule(&card
->napi
);
741 /* kick-start the NAPI softirq: */
748 static int qeth_l2_open(struct net_device
*dev
)
750 struct qeth_card
*card
= dev
->ml_priv
;
752 QETH_CARD_TEXT(card
, 5, "qethope_");
753 if (qeth_wait_for_threads(card
, QETH_RECOVER_THREAD
)) {
754 QETH_CARD_TEXT(card
, 3, "openREC");
757 return __qeth_l2_open(dev
);
760 static int qeth_l2_stop(struct net_device
*dev
)
762 struct qeth_card
*card
= dev
->ml_priv
;
764 QETH_CARD_TEXT(card
, 4, "qethstop");
765 netif_tx_disable(dev
);
766 if (card
->state
== CARD_STATE_UP
) {
767 card
->state
= CARD_STATE_SOFTSETUP
;
768 napi_disable(&card
->napi
);
773 static const struct device_type qeth_l2_devtype
= {
774 .name
= "qeth_layer2",
775 .groups
= qeth_l2_attr_groups
,
778 static int qeth_l2_probe_device(struct ccwgroup_device
*gdev
)
780 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
783 if (gdev
->dev
.type
== &qeth_generic_devtype
) {
784 rc
= qeth_l2_create_device_attributes(&gdev
->dev
);
788 INIT_LIST_HEAD(&card
->vid_list
);
789 hash_init(card
->mac_htable
);
790 card
->info
.hwtrap
= 0;
791 qeth_l2_vnicc_set_defaults(card
);
795 static void qeth_l2_remove_device(struct ccwgroup_device
*cgdev
)
797 struct qeth_card
*card
= dev_get_drvdata(&cgdev
->dev
);
799 if (cgdev
->dev
.type
== &qeth_generic_devtype
)
800 qeth_l2_remove_device_attributes(&cgdev
->dev
);
801 qeth_set_allowed_threads(card
, 0, 1);
802 wait_event(card
->wait_q
, qeth_threads_running(card
, 0xffffffff) == 0);
804 if (cgdev
->state
== CCWGROUP_ONLINE
)
805 qeth_l2_set_offline(cgdev
);
807 cancel_work_sync(&card
->close_dev_work
);
808 if (qeth_netdev_is_registered(card
->dev
))
809 unregister_netdev(card
->dev
);
812 static const struct ethtool_ops qeth_l2_ethtool_ops
= {
813 .get_link
= ethtool_op_get_link
,
814 .get_strings
= qeth_core_get_strings
,
815 .get_ethtool_stats
= qeth_core_get_ethtool_stats
,
816 .get_sset_count
= qeth_core_get_sset_count
,
817 .get_drvinfo
= qeth_core_get_drvinfo
,
818 .get_link_ksettings
= qeth_core_ethtool_get_link_ksettings
,
821 static const struct ethtool_ops qeth_l2_osn_ops
= {
822 .get_strings
= qeth_core_get_strings
,
823 .get_ethtool_stats
= qeth_core_get_ethtool_stats
,
824 .get_sset_count
= qeth_core_get_sset_count
,
825 .get_drvinfo
= qeth_core_get_drvinfo
,
828 static const struct net_device_ops qeth_l2_netdev_ops
= {
829 .ndo_open
= qeth_l2_open
,
830 .ndo_stop
= qeth_l2_stop
,
831 .ndo_get_stats
= qeth_get_stats
,
832 .ndo_start_xmit
= qeth_l2_hard_start_xmit
,
833 .ndo_features_check
= qeth_features_check
,
834 .ndo_validate_addr
= eth_validate_addr
,
835 .ndo_set_rx_mode
= qeth_l2_set_rx_mode
,
836 .ndo_do_ioctl
= qeth_do_ioctl
,
837 .ndo_set_mac_address
= qeth_l2_set_mac_address
,
838 .ndo_vlan_rx_add_vid
= qeth_l2_vlan_rx_add_vid
,
839 .ndo_vlan_rx_kill_vid
= qeth_l2_vlan_rx_kill_vid
,
840 .ndo_tx_timeout
= qeth_tx_timeout
,
841 .ndo_fix_features
= qeth_fix_features
,
842 .ndo_set_features
= qeth_set_features
845 static int qeth_l2_setup_netdev(struct qeth_card
*card
, bool carrier_ok
)
849 if (qeth_netdev_is_registered(card
->dev
))
852 card
->dev
->priv_flags
|= IFF_UNICAST_FLT
;
853 card
->dev
->netdev_ops
= &qeth_l2_netdev_ops
;
854 if (card
->info
.type
== QETH_CARD_TYPE_OSN
) {
855 card
->dev
->ethtool_ops
= &qeth_l2_osn_ops
;
856 card
->dev
->flags
|= IFF_NOARP
;
858 card
->dev
->ethtool_ops
= &qeth_l2_ethtool_ops
;
859 card
->dev
->needed_headroom
= sizeof(struct qeth_hdr
);
862 if (card
->info
.type
== QETH_CARD_TYPE_OSM
)
863 card
->dev
->features
|= NETIF_F_VLAN_CHALLENGED
;
865 card
->dev
->features
|= NETIF_F_HW_VLAN_CTAG_FILTER
;
867 if (card
->info
.type
== QETH_CARD_TYPE_OSD
&& !card
->info
.guestlan
) {
868 card
->dev
->features
|= NETIF_F_SG
;
869 /* OSA 3S and earlier has no RX/TX support */
870 if (qeth_is_supported(card
, IPA_OUTBOUND_CHECKSUM
)) {
871 card
->dev
->hw_features
|= NETIF_F_IP_CSUM
;
872 card
->dev
->vlan_features
|= NETIF_F_IP_CSUM
;
875 if (qeth_is_supported6(card
, IPA_OUTBOUND_CHECKSUM_V6
)) {
876 card
->dev
->hw_features
|= NETIF_F_IPV6_CSUM
;
877 card
->dev
->vlan_features
|= NETIF_F_IPV6_CSUM
;
879 if (qeth_is_supported(card
, IPA_INBOUND_CHECKSUM
) ||
880 qeth_is_supported6(card
, IPA_INBOUND_CHECKSUM_V6
)) {
881 card
->dev
->hw_features
|= NETIF_F_RXCSUM
;
882 card
->dev
->vlan_features
|= NETIF_F_RXCSUM
;
884 if (qeth_is_supported(card
, IPA_OUTBOUND_TSO
)) {
885 card
->dev
->hw_features
|= NETIF_F_TSO
;
886 card
->dev
->vlan_features
|= NETIF_F_TSO
;
888 if (qeth_is_supported6(card
, IPA_OUTBOUND_TSO
)) {
889 card
->dev
->hw_features
|= NETIF_F_TSO6
;
890 card
->dev
->vlan_features
|= NETIF_F_TSO6
;
893 if (card
->dev
->hw_features
& (NETIF_F_TSO
| NETIF_F_TSO6
)) {
894 card
->dev
->needed_headroom
= sizeof(struct qeth_hdr_tso
);
895 netif_set_gso_max_size(card
->dev
,
896 PAGE_SIZE
* (QDIO_MAX_ELEMENTS_PER_BUFFER
- 1));
899 if (!is_valid_ether_addr(card
->dev
->dev_addr
))
900 qeth_l2_request_initial_mac(card
);
901 netif_napi_add(card
->dev
, &card
->napi
, qeth_poll
, QETH_NAPI_WEIGHT
);
902 rc
= register_netdev(card
->dev
);
903 if (!rc
&& carrier_ok
)
904 netif_carrier_on(card
->dev
);
907 card
->dev
->netdev_ops
= NULL
;
911 static int qeth_l2_start_ipassists(struct qeth_card
*card
)
913 /* configure isolation level */
914 if (qeth_set_access_ctrl_online(card
, 0))
919 static void qeth_l2_trace_features(struct qeth_card
*card
)
921 /* Set BridgePort features */
922 QETH_CARD_TEXT(card
, 2, "featuSBP");
923 QETH_CARD_HEX(card
, 2, &card
->options
.sbp
.supported_funcs
,
924 sizeof(card
->options
.sbp
.supported_funcs
));
925 /* VNIC Characteristics features */
926 QETH_CARD_TEXT(card
, 2, "feaVNICC");
927 QETH_CARD_HEX(card
, 2, &card
->options
.vnicc
.sup_chars
,
928 sizeof(card
->options
.vnicc
.sup_chars
));
931 static int __qeth_l2_set_online(struct ccwgroup_device
*gdev
, int recovery_mode
)
933 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
935 enum qeth_card_states recover_flag
;
938 mutex_lock(&card
->discipline_mutex
);
939 mutex_lock(&card
->conf_mutex
);
940 QETH_DBF_TEXT(SETUP
, 2, "setonlin");
941 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
943 recover_flag
= card
->state
;
944 rc
= qeth_core_hardsetup_card(card
, &carrier_ok
);
946 QETH_DBF_TEXT_(SETUP
, 2, "2err%04x", rc
);
950 qeth_bridgeport_query_support(card
);
951 if (card
->options
.sbp
.supported_funcs
)
952 dev_info(&card
->gdev
->dev
,
953 "The device represents a Bridge Capable Port\n");
955 rc
= qeth_l2_setup_netdev(card
, carrier_ok
);
959 if (card
->info
.type
!= QETH_CARD_TYPE_OSN
&&
960 !qeth_l2_send_setmac(card
, card
->dev
->dev_addr
))
961 card
->info
.mac_bits
|= QETH_LAYER2_MAC_REGISTERED
;
963 if (qeth_is_diagass_supported(card
, QETH_DIAGS_CMD_TRAP
)) {
964 if (card
->info
.hwtrap
&&
965 qeth_hw_trap(card
, QETH_DIAGS_TRAP_ARM
))
966 card
->info
.hwtrap
= 0;
968 card
->info
.hwtrap
= 0;
970 /* for the rx_bcast characteristic, init VNICC after setmac */
971 qeth_l2_vnicc_init(card
);
973 qeth_trace_features(card
);
974 qeth_l2_trace_features(card
);
976 qeth_l2_setup_bridgeport_attrs(card
);
978 card
->state
= CARD_STATE_HARDSETUP
;
979 qeth_print_status_message(card
);
982 QETH_DBF_TEXT(SETUP
, 2, "softsetp");
984 if ((card
->info
.type
== QETH_CARD_TYPE_OSD
) ||
985 (card
->info
.type
== QETH_CARD_TYPE_OSX
)) {
986 rc
= qeth_l2_start_ipassists(card
);
991 if (card
->info
.type
!= QETH_CARD_TYPE_OSN
)
992 qeth_l2_process_vlans(card
);
994 netif_tx_disable(card
->dev
);
996 rc
= qeth_init_qdio_queues(card
);
998 QETH_DBF_TEXT_(SETUP
, 2, "6err%d", rc
);
1002 card
->state
= CARD_STATE_SOFTSETUP
;
1004 qeth_set_allowed_threads(card
, 0xffffffff, 0);
1006 qeth_enable_hw_features(card
->dev
);
1007 if (recover_flag
== CARD_STATE_RECOVER
) {
1008 if (recovery_mode
&&
1009 card
->info
.type
!= QETH_CARD_TYPE_OSN
) {
1010 __qeth_l2_open(card
->dev
);
1011 qeth_l2_set_rx_mode(card
->dev
);
1014 dev_open(card
->dev
, NULL
);
1018 /* let user_space know that device is online */
1019 kobject_uevent(&gdev
->dev
.kobj
, KOBJ_CHANGE
);
1020 mutex_unlock(&card
->conf_mutex
);
1021 mutex_unlock(&card
->discipline_mutex
);
1025 qeth_l2_stop_card(card
, 0);
1026 ccw_device_set_offline(CARD_DDEV(card
));
1027 ccw_device_set_offline(CARD_WDEV(card
));
1028 ccw_device_set_offline(CARD_RDEV(card
));
1029 qdio_free(CARD_DDEV(card
));
1030 if (recover_flag
== CARD_STATE_RECOVER
)
1031 card
->state
= CARD_STATE_RECOVER
;
1033 card
->state
= CARD_STATE_DOWN
;
1034 mutex_unlock(&card
->conf_mutex
);
1035 mutex_unlock(&card
->discipline_mutex
);
1039 static int qeth_l2_set_online(struct ccwgroup_device
*gdev
)
1041 return __qeth_l2_set_online(gdev
, 0);
1044 static int __qeth_l2_set_offline(struct ccwgroup_device
*cgdev
,
1047 struct qeth_card
*card
= dev_get_drvdata(&cgdev
->dev
);
1048 int rc
= 0, rc2
= 0, rc3
= 0;
1049 enum qeth_card_states recover_flag
;
1051 mutex_lock(&card
->discipline_mutex
);
1052 mutex_lock(&card
->conf_mutex
);
1053 QETH_DBF_TEXT(SETUP
, 3, "setoffl");
1054 QETH_DBF_HEX(SETUP
, 3, &card
, sizeof(void *));
1056 netif_carrier_off(card
->dev
);
1057 recover_flag
= card
->state
;
1058 if ((!recovery_mode
&& card
->info
.hwtrap
) || card
->info
.hwtrap
== 2) {
1059 qeth_hw_trap(card
, QETH_DIAGS_TRAP_DISARM
);
1060 card
->info
.hwtrap
= 1;
1062 qeth_l2_stop_card(card
, recovery_mode
);
1063 rc
= ccw_device_set_offline(CARD_DDEV(card
));
1064 rc2
= ccw_device_set_offline(CARD_WDEV(card
));
1065 rc3
= ccw_device_set_offline(CARD_RDEV(card
));
1067 rc
= (rc2
) ? rc2
: rc3
;
1069 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
1070 qdio_free(CARD_DDEV(card
));
1071 if (recover_flag
== CARD_STATE_UP
)
1072 card
->state
= CARD_STATE_RECOVER
;
1073 /* let user_space know that device is offline */
1074 kobject_uevent(&cgdev
->dev
.kobj
, KOBJ_CHANGE
);
1075 mutex_unlock(&card
->conf_mutex
);
1076 mutex_unlock(&card
->discipline_mutex
);
1080 static int qeth_l2_set_offline(struct ccwgroup_device
*cgdev
)
1082 return __qeth_l2_set_offline(cgdev
, 0);
1085 static int qeth_l2_recover(void *ptr
)
1087 struct qeth_card
*card
;
1090 card
= (struct qeth_card
*) ptr
;
1091 QETH_CARD_TEXT(card
, 2, "recover1");
1092 if (!qeth_do_run_thread(card
, QETH_RECOVER_THREAD
))
1094 QETH_CARD_TEXT(card
, 2, "recover2");
1095 dev_warn(&card
->gdev
->dev
,
1096 "A recovery process has been started for the device\n");
1097 qeth_set_recovery_task(card
);
1098 __qeth_l2_set_offline(card
->gdev
, 1);
1099 rc
= __qeth_l2_set_online(card
->gdev
, 1);
1101 dev_info(&card
->gdev
->dev
,
1102 "Device successfully recovered!\n");
1104 qeth_close_dev(card
);
1105 dev_warn(&card
->gdev
->dev
, "The qeth device driver "
1106 "failed to recover an error on the device\n");
1108 qeth_clear_recovery_task(card
);
1109 qeth_clear_thread_start_bit(card
, QETH_RECOVER_THREAD
);
1110 qeth_clear_thread_running_bit(card
, QETH_RECOVER_THREAD
);
1114 static int __init
qeth_l2_init(void)
1116 pr_info("register layer 2 discipline\n");
1120 static void __exit
qeth_l2_exit(void)
1122 pr_info("unregister layer 2 discipline\n");
1125 static int qeth_l2_pm_suspend(struct ccwgroup_device
*gdev
)
1127 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
1129 netif_device_detach(card
->dev
);
1130 qeth_set_allowed_threads(card
, 0, 1);
1131 wait_event(card
->wait_q
, qeth_threads_running(card
, 0xffffffff) == 0);
1132 if (gdev
->state
== CCWGROUP_OFFLINE
)
1134 if (card
->state
== CARD_STATE_UP
) {
1135 if (card
->info
.hwtrap
)
1136 qeth_hw_trap(card
, QETH_DIAGS_TRAP_DISARM
);
1137 __qeth_l2_set_offline(card
->gdev
, 1);
1139 __qeth_l2_set_offline(card
->gdev
, 0);
1143 static int qeth_l2_pm_resume(struct ccwgroup_device
*gdev
)
1145 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
1148 if (card
->state
== CARD_STATE_RECOVER
) {
1149 rc
= __qeth_l2_set_online(card
->gdev
, 1);
1152 dev_close(card
->dev
);
1156 rc
= __qeth_l2_set_online(card
->gdev
, 0);
1158 qeth_set_allowed_threads(card
, 0xffffffff, 0);
1159 netif_device_attach(card
->dev
);
1161 dev_warn(&card
->gdev
->dev
, "The qeth device driver "
1162 "failed to recover an error on the device\n");
1166 /* Returns zero if the command is successfully "consumed" */
1167 static int qeth_l2_control_event(struct qeth_card
*card
,
1168 struct qeth_ipa_cmd
*cmd
)
1170 switch (cmd
->hdr
.command
) {
1171 case IPA_CMD_SETBRIDGEPORT_OSA
:
1172 case IPA_CMD_SETBRIDGEPORT_IQD
:
1173 if (cmd
->data
.sbp
.hdr
.command_code
==
1174 IPA_SBP_BRIDGE_PORT_STATE_CHANGE
) {
1175 qeth_bridge_state_change(card
, cmd
);
1179 case IPA_CMD_ADDRESS_CHANGE_NOTIF
:
1180 qeth_bridge_host_event(card
, cmd
);
1187 struct qeth_discipline qeth_l2_discipline
= {
1188 .devtype
= &qeth_l2_devtype
,
1189 .process_rx_buffer
= qeth_l2_process_inbound_buffer
,
1190 .recover
= qeth_l2_recover
,
1191 .setup
= qeth_l2_probe_device
,
1192 .remove
= qeth_l2_remove_device
,
1193 .set_online
= qeth_l2_set_online
,
1194 .set_offline
= qeth_l2_set_offline
,
1195 .freeze
= qeth_l2_pm_suspend
,
1196 .thaw
= qeth_l2_pm_resume
,
1197 .restore
= qeth_l2_pm_resume
,
1199 .control_event_handler
= qeth_l2_control_event
,
1201 EXPORT_SYMBOL_GPL(qeth_l2_discipline
);
1203 static int qeth_osn_send_control_data(struct qeth_card
*card
, int len
,
1204 struct qeth_cmd_buffer
*iob
)
1206 struct qeth_channel
*channel
= iob
->channel
;
1209 QETH_CARD_TEXT(card
, 5, "osndctrd");
1211 wait_event(card
->wait_q
,
1212 atomic_cmpxchg(&channel
->irq_pending
, 0, 1) == 0);
1213 qeth_prepare_control_data(card
, len
, iob
);
1214 QETH_CARD_TEXT(card
, 6, "osnoirqp");
1215 spin_lock_irq(get_ccwdev_lock(channel
->ccwdev
));
1216 rc
= ccw_device_start_timeout(channel
->ccwdev
, channel
->ccw
,
1217 (addr_t
) iob
, 0, 0, QETH_IPA_TIMEOUT
);
1218 spin_unlock_irq(get_ccwdev_lock(channel
->ccwdev
));
1220 QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: "
1221 "ccw_device_start rc = %i\n", rc
);
1222 QETH_CARD_TEXT_(card
, 2, " err%d", rc
);
1223 qeth_release_buffer(channel
, iob
);
1224 atomic_set(&channel
->irq_pending
, 0);
1225 wake_up(&card
->wait_q
);
1230 static int qeth_osn_send_ipa_cmd(struct qeth_card
*card
,
1231 struct qeth_cmd_buffer
*iob
, int data_len
)
1235 QETH_CARD_TEXT(card
, 4, "osndipa");
1237 qeth_prepare_ipa_cmd(card
, iob
);
1238 s1
= (u16
)(IPA_PDU_HEADER_SIZE
+ data_len
);
1240 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob
->data
), &s1
, 2);
1241 memcpy(QETH_IPA_PDU_LEN_PDU1(iob
->data
), &s2
, 2);
1242 memcpy(QETH_IPA_PDU_LEN_PDU2(iob
->data
), &s2
, 2);
1243 memcpy(QETH_IPA_PDU_LEN_PDU3(iob
->data
), &s2
, 2);
1244 return qeth_osn_send_control_data(card
, s1
, iob
);
1247 int qeth_osn_assist(struct net_device
*dev
, void *data
, int data_len
)
1249 struct qeth_cmd_buffer
*iob
;
1250 struct qeth_card
*card
;
1254 card
= dev
->ml_priv
;
1257 QETH_CARD_TEXT(card
, 2, "osnsdmc");
1258 if (!qeth_card_hw_is_reachable(card
))
1260 iob
= qeth_wait_for_buffer(&card
->write
);
1261 memcpy(__ipa_cmd(iob
), data
, data_len
);
1262 return qeth_osn_send_ipa_cmd(card
, iob
, data_len
);
1264 EXPORT_SYMBOL(qeth_osn_assist
);
1266 int qeth_osn_register(unsigned char *read_dev_no
, struct net_device
**dev
,
1267 int (*assist_cb
)(struct net_device
*, void *),
1268 int (*data_cb
)(struct sk_buff
*))
1270 struct qeth_card
*card
;
1274 memcpy(&devno
, read_dev_no
, 2);
1275 sprintf(bus_id
, "0.0.%04x", devno
);
1276 card
= qeth_get_card_by_busid(bus_id
);
1277 if (!card
|| !IS_OSN(card
))
1281 QETH_CARD_TEXT(card
, 2, "osnreg");
1282 if ((assist_cb
== NULL
) || (data_cb
== NULL
))
1284 card
->osn_info
.assist_cb
= assist_cb
;
1285 card
->osn_info
.data_cb
= data_cb
;
1288 EXPORT_SYMBOL(qeth_osn_register
);
1290 void qeth_osn_deregister(struct net_device
*dev
)
1292 struct qeth_card
*card
;
1296 card
= dev
->ml_priv
;
1299 QETH_CARD_TEXT(card
, 2, "osndereg");
1300 card
->osn_info
.assist_cb
= NULL
;
1301 card
->osn_info
.data_cb
= NULL
;
1304 EXPORT_SYMBOL(qeth_osn_deregister
);
1306 /* SETBRIDGEPORT support, async notifications */
1308 enum qeth_an_event_type
{anev_reg_unreg
, anev_abort
, anev_reset
};
1311 * qeth_bridge_emit_host_event() - bridgeport address change notification
1312 * @card: qeth_card structure pointer, for udev events.
1313 * @evtype: "normal" register/unregister, or abort, or reset. For abort
1314 * and reset token and addr_lnid are unused and may be NULL.
1315 * @code: event bitmask: high order bit 0x80 value 1 means removal of an
1316 * object, 0 - addition of an object.
1317 * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC.
1318 * @token: "network token" structure identifying physical address of the port.
1319 * @addr_lnid: pointer to structure with MAC address and VLAN ID.
1321 * This function is called when registrations and deregistrations are
1322 * reported by the hardware, and also when notifications are enabled -
1323 * for all currently registered addresses.
1325 static void qeth_bridge_emit_host_event(struct qeth_card
*card
,
1326 enum qeth_an_event_type evtype
,
1327 u8 code
, struct net_if_token
*token
, struct mac_addr_lnid
*addr_lnid
)
1334 case anev_reg_unreg
:
1335 snprintf(str
[i
], sizeof(str
[i
]), "BRIDGEDHOST=%s",
1336 (code
& IPA_ADDR_CHANGE_CODE_REMOVAL
)
1337 ? "deregister" : "register");
1338 env
[i
] = str
[i
]; i
++;
1339 if (code
& IPA_ADDR_CHANGE_CODE_VLANID
) {
1340 snprintf(str
[i
], sizeof(str
[i
]), "VLAN=%d",
1342 env
[i
] = str
[i
]; i
++;
1344 if (code
& IPA_ADDR_CHANGE_CODE_MACADDR
) {
1345 snprintf(str
[i
], sizeof(str
[i
]), "MAC=%pM",
1347 env
[i
] = str
[i
]; i
++;
1349 snprintf(str
[i
], sizeof(str
[i
]), "NTOK_BUSID=%x.%x.%04x",
1350 token
->cssid
, token
->ssid
, token
->devnum
);
1351 env
[i
] = str
[i
]; i
++;
1352 snprintf(str
[i
], sizeof(str
[i
]), "NTOK_IID=%02x", token
->iid
);
1353 env
[i
] = str
[i
]; i
++;
1354 snprintf(str
[i
], sizeof(str
[i
]), "NTOK_CHPID=%02x",
1356 env
[i
] = str
[i
]; i
++;
1357 snprintf(str
[i
], sizeof(str
[i
]), "NTOK_CHID=%04x", token
->chid
);
1358 env
[i
] = str
[i
]; i
++;
1361 snprintf(str
[i
], sizeof(str
[i
]), "BRIDGEDHOST=abort");
1362 env
[i
] = str
[i
]; i
++;
1365 snprintf(str
[i
], sizeof(str
[i
]), "BRIDGEDHOST=reset");
1366 env
[i
] = str
[i
]; i
++;
1370 kobject_uevent_env(&card
->gdev
->dev
.kobj
, KOBJ_CHANGE
, env
);
1373 struct qeth_bridge_state_data
{
1374 struct work_struct worker
;
1375 struct qeth_card
*card
;
1376 struct qeth_sbp_state_change qports
;
1379 static void qeth_bridge_state_change_worker(struct work_struct
*work
)
1381 struct qeth_bridge_state_data
*data
=
1382 container_of(work
, struct qeth_bridge_state_data
, worker
);
1383 /* We are only interested in the first entry - local port */
1384 struct qeth_sbp_port_entry
*entry
= &data
->qports
.entry
[0];
1385 char env_locrem
[32];
1395 /* Role should not change by itself, but if it did, */
1396 /* information from the hardware is authoritative. */
1397 mutex_lock(&data
->card
->conf_mutex
);
1398 data
->card
->options
.sbp
.role
= entry
->role
;
1399 mutex_unlock(&data
->card
->conf_mutex
);
1401 snprintf(env_locrem
, sizeof(env_locrem
), "BRIDGEPORT=statechange");
1402 snprintf(env_role
, sizeof(env_role
), "ROLE=%s",
1403 (entry
->role
== QETH_SBP_ROLE_NONE
) ? "none" :
1404 (entry
->role
== QETH_SBP_ROLE_PRIMARY
) ? "primary" :
1405 (entry
->role
== QETH_SBP_ROLE_SECONDARY
) ? "secondary" :
1407 snprintf(env_state
, sizeof(env_state
), "STATE=%s",
1408 (entry
->state
== QETH_SBP_STATE_INACTIVE
) ? "inactive" :
1409 (entry
->state
== QETH_SBP_STATE_STANDBY
) ? "standby" :
1410 (entry
->state
== QETH_SBP_STATE_ACTIVE
) ? "active" :
1412 kobject_uevent_env(&data
->card
->gdev
->dev
.kobj
,
1417 static void qeth_bridge_state_change(struct qeth_card
*card
,
1418 struct qeth_ipa_cmd
*cmd
)
1420 struct qeth_sbp_state_change
*qports
=
1421 &cmd
->data
.sbp
.data
.state_change
;
1422 struct qeth_bridge_state_data
*data
;
1425 QETH_CARD_TEXT(card
, 2, "brstchng");
1426 if (qports
->entry_length
!= sizeof(struct qeth_sbp_port_entry
)) {
1427 QETH_CARD_TEXT_(card
, 2, "BPsz%04x", qports
->entry_length
);
1430 extrasize
= sizeof(struct qeth_sbp_port_entry
) * qports
->num_entries
;
1431 data
= kzalloc(sizeof(struct qeth_bridge_state_data
) + extrasize
,
1434 QETH_CARD_TEXT(card
, 2, "BPSalloc");
1437 INIT_WORK(&data
->worker
, qeth_bridge_state_change_worker
);
1439 memcpy(&data
->qports
, qports
,
1440 sizeof(struct qeth_sbp_state_change
) + extrasize
);
1441 queue_work(card
->event_wq
, &data
->worker
);
1444 struct qeth_bridge_host_data
{
1445 struct work_struct worker
;
1446 struct qeth_card
*card
;
1447 struct qeth_ipacmd_addr_change hostevs
;
1450 static void qeth_bridge_host_event_worker(struct work_struct
*work
)
1452 struct qeth_bridge_host_data
*data
=
1453 container_of(work
, struct qeth_bridge_host_data
, worker
);
1456 if (data
->hostevs
.lost_event_mask
) {
1457 dev_info(&data
->card
->gdev
->dev
,
1458 "Address notification from the Bridge Port stopped %s (%s)\n",
1459 data
->card
->dev
->name
,
1460 (data
->hostevs
.lost_event_mask
== 0x01)
1462 : (data
->hostevs
.lost_event_mask
== 0x02)
1463 ? "Bridge port state change"
1464 : "Unknown reason");
1465 mutex_lock(&data
->card
->conf_mutex
);
1466 data
->card
->options
.sbp
.hostnotification
= 0;
1467 mutex_unlock(&data
->card
->conf_mutex
);
1468 qeth_bridge_emit_host_event(data
->card
, anev_abort
,
1471 for (i
= 0; i
< data
->hostevs
.num_entries
; i
++) {
1472 struct qeth_ipacmd_addr_change_entry
*entry
=
1473 &data
->hostevs
.entry
[i
];
1474 qeth_bridge_emit_host_event(data
->card
,
1477 &entry
->token
, &entry
->addr_lnid
);
1482 static void qeth_bridge_host_event(struct qeth_card
*card
,
1483 struct qeth_ipa_cmd
*cmd
)
1485 struct qeth_ipacmd_addr_change
*hostevs
=
1486 &cmd
->data
.addrchange
;
1487 struct qeth_bridge_host_data
*data
;
1490 QETH_CARD_TEXT(card
, 2, "brhostev");
1491 if (cmd
->hdr
.return_code
!= 0x0000) {
1492 if (cmd
->hdr
.return_code
== 0x0010) {
1493 if (hostevs
->lost_event_mask
== 0x00)
1494 hostevs
->lost_event_mask
= 0xff;
1496 QETH_CARD_TEXT_(card
, 2, "BPHe%04x",
1497 cmd
->hdr
.return_code
);
1501 extrasize
= sizeof(struct qeth_ipacmd_addr_change_entry
) *
1502 hostevs
->num_entries
;
1503 data
= kzalloc(sizeof(struct qeth_bridge_host_data
) + extrasize
,
1506 QETH_CARD_TEXT(card
, 2, "BPHalloc");
1509 INIT_WORK(&data
->worker
, qeth_bridge_host_event_worker
);
1511 memcpy(&data
->hostevs
, hostevs
,
1512 sizeof(struct qeth_ipacmd_addr_change
) + extrasize
);
1513 queue_work(card
->event_wq
, &data
->worker
);
1516 /* SETBRIDGEPORT support; sending commands */
1518 struct _qeth_sbp_cbctl
{
1524 enum qeth_sbp_roles
*role
;
1525 enum qeth_sbp_states
*state
;
1531 * qeth_bridgeport_makerc() - derive "traditional" error from hardware codes.
1532 * @card: qeth_card structure pointer, for debug messages.
1533 * @cbctl: state structure with hardware return codes.
1534 * @setcmd: IPA command code
1536 * Returns negative errno-compatible error indication or 0 on success.
1538 static int qeth_bridgeport_makerc(struct qeth_card
*card
,
1539 struct _qeth_sbp_cbctl
*cbctl
, enum qeth_ipa_sbp_cmd setcmd
)
1542 int is_iqd
= (card
->info
.type
== QETH_CARD_TYPE_IQD
);
1544 if ((is_iqd
&& (cbctl
->ipa_rc
== IPA_RC_SUCCESS
)) ||
1545 (!is_iqd
&& (cbctl
->ipa_rc
== cbctl
->cmd_rc
)))
1546 switch (cbctl
->cmd_rc
) {
1547 case IPA_RC_SUCCESS
:
1550 case IPA_RC_L2_UNSUPPORTED_CMD
:
1551 case IPA_RC_UNSUPPORTED_COMMAND
:
1554 case IPA_RC_SBP_OSA_NOT_CONFIGURED
:
1555 case IPA_RC_SBP_IQD_NOT_CONFIGURED
:
1556 rc
= -ENODEV
; /* maybe not the best code here? */
1557 dev_err(&card
->gdev
->dev
,
1558 "The device is not configured as a Bridge Port\n");
1560 case IPA_RC_SBP_OSA_OS_MISMATCH
:
1561 case IPA_RC_SBP_IQD_OS_MISMATCH
:
1563 dev_err(&card
->gdev
->dev
,
1564 "A Bridge Port is already configured by a different operating system\n");
1566 case IPA_RC_SBP_OSA_ANO_DEV_PRIMARY
:
1567 case IPA_RC_SBP_IQD_ANO_DEV_PRIMARY
:
1569 case IPA_SBP_SET_PRIMARY_BRIDGE_PORT
:
1571 dev_err(&card
->gdev
->dev
,
1572 "The LAN already has a primary Bridge Port\n");
1574 case IPA_SBP_SET_SECONDARY_BRIDGE_PORT
:
1576 dev_err(&card
->gdev
->dev
,
1577 "The device is already a primary Bridge Port\n");
1583 case IPA_RC_SBP_OSA_CURRENT_SECOND
:
1584 case IPA_RC_SBP_IQD_CURRENT_SECOND
:
1586 dev_err(&card
->gdev
->dev
,
1587 "The device is already a secondary Bridge Port\n");
1589 case IPA_RC_SBP_OSA_LIMIT_SECOND
:
1590 case IPA_RC_SBP_IQD_LIMIT_SECOND
:
1592 dev_err(&card
->gdev
->dev
,
1593 "The LAN cannot have more secondary Bridge Ports\n");
1595 case IPA_RC_SBP_OSA_CURRENT_PRIMARY
:
1596 case IPA_RC_SBP_IQD_CURRENT_PRIMARY
:
1598 dev_err(&card
->gdev
->dev
,
1599 "The device is already a primary Bridge Port\n");
1601 case IPA_RC_SBP_OSA_NOT_AUTHD_BY_ZMAN
:
1602 case IPA_RC_SBP_IQD_NOT_AUTHD_BY_ZMAN
:
1604 dev_err(&card
->gdev
->dev
,
1605 "The device is not authorized to be a Bridge Port\n");
1611 switch (cbctl
->ipa_rc
) {
1612 case IPA_RC_NOTSUPP
:
1615 case IPA_RC_UNSUPPORTED_COMMAND
:
1623 QETH_CARD_TEXT_(card
, 2, "SBPi%04x", cbctl
->ipa_rc
);
1624 QETH_CARD_TEXT_(card
, 2, "SBPc%04x", cbctl
->cmd_rc
);
1629 static struct qeth_cmd_buffer
*qeth_sbp_build_cmd(struct qeth_card
*card
,
1630 enum qeth_ipa_sbp_cmd sbp_cmd
,
1631 unsigned int cmd_length
)
1633 enum qeth_ipa_cmds ipa_cmd
= (card
->info
.type
== QETH_CARD_TYPE_IQD
) ?
1634 IPA_CMD_SETBRIDGEPORT_IQD
:
1635 IPA_CMD_SETBRIDGEPORT_OSA
;
1636 struct qeth_cmd_buffer
*iob
;
1637 struct qeth_ipa_cmd
*cmd
;
1639 iob
= qeth_get_ipacmd_buffer(card
, ipa_cmd
, 0);
1642 cmd
= __ipa_cmd(iob
);
1643 cmd
->data
.sbp
.hdr
.cmdlength
= sizeof(struct qeth_ipacmd_sbp_hdr
) +
1645 cmd
->data
.sbp
.hdr
.command_code
= sbp_cmd
;
1646 cmd
->data
.sbp
.hdr
.used_total
= 1;
1647 cmd
->data
.sbp
.hdr
.seq_no
= 1;
1651 static int qeth_bridgeport_query_support_cb(struct qeth_card
*card
,
1652 struct qeth_reply
*reply
, unsigned long data
)
1654 struct qeth_ipa_cmd
*cmd
= (struct qeth_ipa_cmd
*) data
;
1655 struct _qeth_sbp_cbctl
*cbctl
= (struct _qeth_sbp_cbctl
*)reply
->param
;
1656 QETH_CARD_TEXT(card
, 2, "brqsupcb");
1657 cbctl
->ipa_rc
= cmd
->hdr
.return_code
;
1658 cbctl
->cmd_rc
= cmd
->data
.sbp
.hdr
.return_code
;
1659 if ((cbctl
->ipa_rc
== 0) && (cbctl
->cmd_rc
== 0)) {
1660 cbctl
->data
.supported
=
1661 cmd
->data
.sbp
.data
.query_cmds_supp
.supported_cmds
;
1663 cbctl
->data
.supported
= 0;
1669 * qeth_bridgeport_query_support() - store bitmask of supported subfunctions.
1670 * @card: qeth_card structure pointer.
1672 * Sets bitmask of supported setbridgeport subfunctions in the qeth_card
1673 * strucutre: card->options.sbp.supported_funcs.
1675 static void qeth_bridgeport_query_support(struct qeth_card
*card
)
1677 struct qeth_cmd_buffer
*iob
;
1678 struct _qeth_sbp_cbctl cbctl
;
1680 QETH_CARD_TEXT(card
, 2, "brqsuppo");
1681 iob
= qeth_sbp_build_cmd(card
, IPA_SBP_QUERY_COMMANDS_SUPPORTED
,
1682 sizeof(struct qeth_sbp_query_cmds_supp
));
1685 if (qeth_send_ipa_cmd(card
, iob
, qeth_bridgeport_query_support_cb
,
1687 qeth_bridgeport_makerc(card
, &cbctl
,
1688 IPA_SBP_QUERY_COMMANDS_SUPPORTED
)) {
1689 /* non-zero makerc signifies failure, and produce messages */
1690 card
->options
.sbp
.role
= QETH_SBP_ROLE_NONE
;
1693 card
->options
.sbp
.supported_funcs
= cbctl
.data
.supported
;
1696 static int qeth_bridgeport_query_ports_cb(struct qeth_card
*card
,
1697 struct qeth_reply
*reply
, unsigned long data
)
1699 struct qeth_ipa_cmd
*cmd
= (struct qeth_ipa_cmd
*) data
;
1700 struct qeth_sbp_query_ports
*qports
= &cmd
->data
.sbp
.data
.query_ports
;
1701 struct _qeth_sbp_cbctl
*cbctl
= (struct _qeth_sbp_cbctl
*)reply
->param
;
1703 QETH_CARD_TEXT(card
, 2, "brqprtcb");
1704 cbctl
->ipa_rc
= cmd
->hdr
.return_code
;
1705 cbctl
->cmd_rc
= cmd
->data
.sbp
.hdr
.return_code
;
1706 if ((cbctl
->ipa_rc
!= 0) || (cbctl
->cmd_rc
!= 0))
1708 if (qports
->entry_length
!= sizeof(struct qeth_sbp_port_entry
)) {
1709 cbctl
->cmd_rc
= 0xffff;
1710 QETH_CARD_TEXT_(card
, 2, "SBPs%04x", qports
->entry_length
);
1713 /* first entry contains the state of the local port */
1714 if (qports
->num_entries
> 0) {
1715 if (cbctl
->data
.qports
.role
)
1716 *cbctl
->data
.qports
.role
= qports
->entry
[0].role
;
1717 if (cbctl
->data
.qports
.state
)
1718 *cbctl
->data
.qports
.state
= qports
->entry
[0].state
;
1724 * qeth_bridgeport_query_ports() - query local bridgeport status.
1725 * @card: qeth_card structure pointer.
1726 * @role: Role of the port: 0-none, 1-primary, 2-secondary.
1727 * @state: State of the port: 0-inactive, 1-standby, 2-active.
1729 * Returns negative errno-compatible error indication or 0 on success.
1731 * 'role' and 'state' are not updated in case of hardware operation failure.
1733 int qeth_bridgeport_query_ports(struct qeth_card
*card
,
1734 enum qeth_sbp_roles
*role
, enum qeth_sbp_states
*state
)
1737 struct qeth_cmd_buffer
*iob
;
1738 struct _qeth_sbp_cbctl cbctl
= {
1747 QETH_CARD_TEXT(card
, 2, "brqports");
1748 if (!(card
->options
.sbp
.supported_funcs
& IPA_SBP_QUERY_BRIDGE_PORTS
))
1750 iob
= qeth_sbp_build_cmd(card
, IPA_SBP_QUERY_BRIDGE_PORTS
, 0);
1753 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_bridgeport_query_ports_cb
,
1757 return qeth_bridgeport_makerc(card
, &cbctl
, IPA_SBP_QUERY_BRIDGE_PORTS
);
1760 static int qeth_bridgeport_set_cb(struct qeth_card
*card
,
1761 struct qeth_reply
*reply
, unsigned long data
)
1763 struct qeth_ipa_cmd
*cmd
= (struct qeth_ipa_cmd
*)data
;
1764 struct _qeth_sbp_cbctl
*cbctl
= (struct _qeth_sbp_cbctl
*)reply
->param
;
1765 QETH_CARD_TEXT(card
, 2, "brsetrcb");
1766 cbctl
->ipa_rc
= cmd
->hdr
.return_code
;
1767 cbctl
->cmd_rc
= cmd
->data
.sbp
.hdr
.return_code
;
1772 * qeth_bridgeport_setrole() - Assign primary role to the port.
1773 * @card: qeth_card structure pointer.
1774 * @role: Role to assign.
1776 * Returns negative errno-compatible error indication or 0 on success.
1778 int qeth_bridgeport_setrole(struct qeth_card
*card
, enum qeth_sbp_roles role
)
1782 struct qeth_cmd_buffer
*iob
;
1783 struct _qeth_sbp_cbctl cbctl
;
1784 enum qeth_ipa_sbp_cmd setcmd
;
1786 QETH_CARD_TEXT(card
, 2, "brsetrol");
1788 case QETH_SBP_ROLE_NONE
:
1789 setcmd
= IPA_SBP_RESET_BRIDGE_PORT_ROLE
;
1790 cmdlength
= sizeof(struct qeth_sbp_reset_role
);
1792 case QETH_SBP_ROLE_PRIMARY
:
1793 setcmd
= IPA_SBP_SET_PRIMARY_BRIDGE_PORT
;
1794 cmdlength
= sizeof(struct qeth_sbp_set_primary
);
1796 case QETH_SBP_ROLE_SECONDARY
:
1797 setcmd
= IPA_SBP_SET_SECONDARY_BRIDGE_PORT
;
1798 cmdlength
= sizeof(struct qeth_sbp_set_secondary
);
1803 if (!(card
->options
.sbp
.supported_funcs
& setcmd
))
1805 iob
= qeth_sbp_build_cmd(card
, setcmd
, cmdlength
);
1808 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_bridgeport_set_cb
,
1812 return qeth_bridgeport_makerc(card
, &cbctl
, setcmd
);
1816 * qeth_anset_makerc() - derive "traditional" error from hardware codes.
1817 * @card: qeth_card structure pointer, for debug messages.
1819 * Returns negative errno-compatible error indication or 0 on success.
1821 static int qeth_anset_makerc(struct qeth_card
*card
, int pnso_rc
, u16 response
)
1834 dev_err(&card
->gdev
->dev
,
1835 "Setting address notification failed\n");
1847 QETH_CARD_TEXT_(card
, 2, "SBPp%04x", pnso_rc
);
1848 QETH_CARD_TEXT_(card
, 2, "SBPr%04x", response
);
1853 static void qeth_bridgeport_an_set_cb(void *priv
,
1854 enum qdio_brinfo_entry_type type
, void *entry
)
1856 struct qeth_card
*card
= (struct qeth_card
*)priv
;
1857 struct qdio_brinfo_entry_l2
*l2entry
;
1860 if (type
!= l2_addr_lnid
) {
1865 l2entry
= (struct qdio_brinfo_entry_l2
*)entry
;
1866 code
= IPA_ADDR_CHANGE_CODE_MACADDR
;
1867 if (l2entry
->addr_lnid
.lnid
)
1868 code
|= IPA_ADDR_CHANGE_CODE_VLANID
;
1869 qeth_bridge_emit_host_event(card
, anev_reg_unreg
, code
,
1870 (struct net_if_token
*)&l2entry
->nit
,
1871 (struct mac_addr_lnid
*)&l2entry
->addr_lnid
);
1875 * qeth_bridgeport_an_set() - Enable or disable bridgeport address notification
1876 * @card: qeth_card structure pointer.
1877 * @enable: 0 - disable, non-zero - enable notifications
1879 * Returns negative errno-compatible error indication or 0 on success.
1881 * On enable, emits a series of address notifications udev events for all
1882 * currently registered hosts.
1884 int qeth_bridgeport_an_set(struct qeth_card
*card
, int enable
)
1888 struct ccw_device
*ddev
;
1889 struct subchannel_id schid
;
1893 if (!card
->options
.sbp
.supported_funcs
)
1895 ddev
= CARD_DDEV(card
);
1896 ccw_device_get_schid(ddev
, &schid
);
1899 qeth_bridge_emit_host_event(card
, anev_reset
, 0, NULL
, NULL
);
1900 rc
= qdio_pnso_brinfo(schid
, 1, &response
,
1901 qeth_bridgeport_an_set_cb
, card
);
1903 rc
= qdio_pnso_brinfo(schid
, 0, &response
, NULL
, NULL
);
1904 return qeth_anset_makerc(card
, rc
, response
);
1907 static bool qeth_bridgeport_is_in_use(struct qeth_card
*card
)
1909 return (card
->options
.sbp
.role
|| card
->options
.sbp
.reflect_promisc
||
1910 card
->options
.sbp
.hostnotification
);
1913 /* VNIC Characteristics support */
1915 /* handle VNICC IPA command return codes; convert to error codes */
1916 static int qeth_l2_vnicc_makerc(struct qeth_card
*card
, int ipa_rc
)
1921 case IPA_RC_SUCCESS
:
1923 case IPA_RC_L2_UNSUPPORTED_CMD
:
1924 case IPA_RC_NOTSUPP
:
1927 case IPA_RC_VNICC_OOSEQ
:
1930 case IPA_RC_VNICC_VNICBP
:
1933 case IPA_RC_L2_ADDR_TABLE_FULL
:
1936 case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP
:
1943 QETH_CARD_TEXT_(card
, 2, "err%04x", ipa_rc
);
1947 /* generic VNICC request call back control */
1948 struct _qeth_l2_vnicc_request_cbctl
{
1962 /* generic VNICC request call back */
1963 static int qeth_l2_vnicc_request_cb(struct qeth_card
*card
,
1964 struct qeth_reply
*reply
,
1967 struct _qeth_l2_vnicc_request_cbctl
*cbctl
=
1968 (struct _qeth_l2_vnicc_request_cbctl
*) reply
->param
;
1969 struct qeth_ipa_cmd
*cmd
= (struct qeth_ipa_cmd
*) data
;
1970 struct qeth_ipacmd_vnicc
*rep
= &cmd
->data
.vnicc
;
1972 QETH_CARD_TEXT(card
, 2, "vniccrcb");
1973 if (cmd
->hdr
.return_code
)
1975 /* return results to caller */
1976 card
->options
.vnicc
.sup_chars
= rep
->hdr
.sup
;
1977 card
->options
.vnicc
.cur_chars
= rep
->hdr
.cur
;
1979 if (cbctl
->sub_cmd
== IPA_VNICC_QUERY_CMDS
)
1980 *cbctl
->result
.sup_cmds
= rep
->query_cmds
.sup_cmds
;
1982 if (cbctl
->sub_cmd
== IPA_VNICC_GET_TIMEOUT
)
1983 *cbctl
->result
.timeout
= rep
->getset_timeout
.timeout
;
1988 /* generic VNICC request */
1989 static int qeth_l2_vnicc_request(struct qeth_card
*card
,
1990 struct _qeth_l2_vnicc_request_cbctl
*cbctl
)
1992 struct qeth_ipacmd_vnicc
*req
;
1993 struct qeth_cmd_buffer
*iob
;
1994 struct qeth_ipa_cmd
*cmd
;
1997 QETH_CARD_TEXT(card
, 2, "vniccreq");
1999 /* get new buffer for request */
2000 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_VNICC
, 0);
2004 /* create header for request */
2005 cmd
= __ipa_cmd(iob
);
2006 req
= &cmd
->data
.vnicc
;
2008 /* create sub command header for request */
2009 req
->sub_hdr
.data_length
= sizeof(req
->sub_hdr
);
2010 req
->sub_hdr
.sub_command
= cbctl
->sub_cmd
;
2012 /* create sub command specific request fields */
2013 switch (cbctl
->sub_cmd
) {
2014 case IPA_VNICC_QUERY_CHARS
:
2016 case IPA_VNICC_QUERY_CMDS
:
2017 req
->sub_hdr
.data_length
+= sizeof(req
->query_cmds
);
2018 req
->query_cmds
.vnic_char
= cbctl
->param
.vnic_char
;
2020 case IPA_VNICC_ENABLE
:
2021 case IPA_VNICC_DISABLE
:
2022 req
->sub_hdr
.data_length
+= sizeof(req
->set_char
);
2023 req
->set_char
.vnic_char
= cbctl
->param
.vnic_char
;
2025 case IPA_VNICC_SET_TIMEOUT
:
2026 req
->getset_timeout
.timeout
= cbctl
->param
.timeout
;
2028 case IPA_VNICC_GET_TIMEOUT
:
2029 req
->sub_hdr
.data_length
+= sizeof(req
->getset_timeout
);
2030 req
->getset_timeout
.vnic_char
= cbctl
->param
.vnic_char
;
2033 qeth_release_buffer(iob
->channel
, iob
);
2038 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_l2_vnicc_request_cb
,
2041 return qeth_l2_vnicc_makerc(card
, rc
);
2044 /* VNICC query VNIC characteristics request */
2045 static int qeth_l2_vnicc_query_chars(struct qeth_card
*card
)
2047 struct _qeth_l2_vnicc_request_cbctl cbctl
;
2049 /* prepare callback control */
2050 cbctl
.sub_cmd
= IPA_VNICC_QUERY_CHARS
;
2052 QETH_CARD_TEXT(card
, 2, "vniccqch");
2053 return qeth_l2_vnicc_request(card
, &cbctl
);
2056 /* VNICC query sub commands request */
2057 static int qeth_l2_vnicc_query_cmds(struct qeth_card
*card
, u32 vnic_char
,
2060 struct _qeth_l2_vnicc_request_cbctl cbctl
;
2062 /* prepare callback control */
2063 cbctl
.sub_cmd
= IPA_VNICC_QUERY_CMDS
;
2064 cbctl
.param
.vnic_char
= vnic_char
;
2065 cbctl
.result
.sup_cmds
= sup_cmds
;
2067 QETH_CARD_TEXT(card
, 2, "vniccqcm");
2068 return qeth_l2_vnicc_request(card
, &cbctl
);
2071 /* VNICC enable/disable characteristic request */
2072 static int qeth_l2_vnicc_set_char(struct qeth_card
*card
, u32 vnic_char
,
2075 struct _qeth_l2_vnicc_request_cbctl cbctl
;
2077 /* prepare callback control */
2078 cbctl
.sub_cmd
= cmd
;
2079 cbctl
.param
.vnic_char
= vnic_char
;
2081 QETH_CARD_TEXT(card
, 2, "vniccedc");
2082 return qeth_l2_vnicc_request(card
, &cbctl
);
2085 /* VNICC get/set timeout for characteristic request */
2086 static int qeth_l2_vnicc_getset_timeout(struct qeth_card
*card
, u32 vnicc
,
2087 u32 cmd
, u32
*timeout
)
2089 struct _qeth_l2_vnicc_request_cbctl cbctl
;
2091 /* prepare callback control */
2092 cbctl
.sub_cmd
= cmd
;
2093 cbctl
.param
.vnic_char
= vnicc
;
2094 if (cmd
== IPA_VNICC_SET_TIMEOUT
)
2095 cbctl
.param
.timeout
= *timeout
;
2096 if (cmd
== IPA_VNICC_GET_TIMEOUT
)
2097 cbctl
.result
.timeout
= timeout
;
2099 QETH_CARD_TEXT(card
, 2, "vniccgst");
2100 return qeth_l2_vnicc_request(card
, &cbctl
);
2103 /* set current VNICC flag state; called from sysfs store function */
2104 int qeth_l2_vnicc_set_state(struct qeth_card
*card
, u32 vnicc
, bool state
)
2109 QETH_CARD_TEXT(card
, 2, "vniccsch");
2111 /* do not change anything if BridgePort is enabled */
2112 if (qeth_bridgeport_is_in_use(card
))
2115 /* check if characteristic and enable/disable are supported */
2116 if (!(card
->options
.vnicc
.sup_chars
& vnicc
) ||
2117 !(card
->options
.vnicc
.set_char_sup
& vnicc
))
2120 /* set enable/disable command and store wanted characteristic */
2122 cmd
= IPA_VNICC_ENABLE
;
2123 card
->options
.vnicc
.wanted_chars
|= vnicc
;
2125 cmd
= IPA_VNICC_DISABLE
;
2126 card
->options
.vnicc
.wanted_chars
&= ~vnicc
;
2129 /* do we need to do anything? */
2130 if (card
->options
.vnicc
.cur_chars
== card
->options
.vnicc
.wanted_chars
)
2133 /* if card is not ready, simply stop here */
2134 if (!qeth_card_hw_is_reachable(card
)) {
2136 card
->options
.vnicc
.cur_chars
|= vnicc
;
2138 card
->options
.vnicc
.cur_chars
&= ~vnicc
;
2142 rc
= qeth_l2_vnicc_set_char(card
, vnicc
, cmd
);
2144 card
->options
.vnicc
.wanted_chars
=
2145 card
->options
.vnicc
.cur_chars
;
2147 /* successful online VNICC change; handle special cases */
2148 if (state
&& vnicc
== QETH_VNICC_RX_BCAST
)
2149 card
->options
.vnicc
.rx_bcast_enabled
= true;
2150 if (!state
&& vnicc
== QETH_VNICC_LEARNING
)
2151 qeth_l2_vnicc_recover_timeout(card
, vnicc
,
2152 &card
->options
.vnicc
.learning_timeout
);
2158 /* get current VNICC flag state; called from sysfs show function */
2159 int qeth_l2_vnicc_get_state(struct qeth_card
*card
, u32 vnicc
, bool *state
)
2163 QETH_CARD_TEXT(card
, 2, "vniccgch");
2165 /* do not get anything if BridgePort is enabled */
2166 if (qeth_bridgeport_is_in_use(card
))
2169 /* check if characteristic is supported */
2170 if (!(card
->options
.vnicc
.sup_chars
& vnicc
))
2173 /* if card is ready, query current VNICC state */
2174 if (qeth_card_hw_is_reachable(card
))
2175 rc
= qeth_l2_vnicc_query_chars(card
);
2177 *state
= (card
->options
.vnicc
.cur_chars
& vnicc
) ? true : false;
2181 /* set VNICC timeout; called from sysfs store function. Currently, only learning
2184 int qeth_l2_vnicc_set_timeout(struct qeth_card
*card
, u32 timeout
)
2188 QETH_CARD_TEXT(card
, 2, "vniccsto");
2190 /* do not change anything if BridgePort is enabled */
2191 if (qeth_bridgeport_is_in_use(card
))
2194 /* check if characteristic and set_timeout are supported */
2195 if (!(card
->options
.vnicc
.sup_chars
& QETH_VNICC_LEARNING
) ||
2196 !(card
->options
.vnicc
.getset_timeout_sup
& QETH_VNICC_LEARNING
))
2199 /* do we need to do anything? */
2200 if (card
->options
.vnicc
.learning_timeout
== timeout
)
2203 /* if card is not ready, simply store the value internally and return */
2204 if (!qeth_card_hw_is_reachable(card
)) {
2205 card
->options
.vnicc
.learning_timeout
= timeout
;
2209 /* send timeout value to card; if successful, store value internally */
2210 rc
= qeth_l2_vnicc_getset_timeout(card
, QETH_VNICC_LEARNING
,
2211 IPA_VNICC_SET_TIMEOUT
, &timeout
);
2213 card
->options
.vnicc
.learning_timeout
= timeout
;
2218 /* get current VNICC timeout; called from sysfs show function. Currently, only
2219 * learning supports timeout
2221 int qeth_l2_vnicc_get_timeout(struct qeth_card
*card
, u32
*timeout
)
2225 QETH_CARD_TEXT(card
, 2, "vniccgto");
2227 /* do not get anything if BridgePort is enabled */
2228 if (qeth_bridgeport_is_in_use(card
))
2231 /* check if characteristic and get_timeout are supported */
2232 if (!(card
->options
.vnicc
.sup_chars
& QETH_VNICC_LEARNING
) ||
2233 !(card
->options
.vnicc
.getset_timeout_sup
& QETH_VNICC_LEARNING
))
2235 /* if card is ready, get timeout. Otherwise, just return stored value */
2236 *timeout
= card
->options
.vnicc
.learning_timeout
;
2237 if (qeth_card_hw_is_reachable(card
))
2238 rc
= qeth_l2_vnicc_getset_timeout(card
, QETH_VNICC_LEARNING
,
2239 IPA_VNICC_GET_TIMEOUT
,
2245 /* check if VNICC is currently enabled */
2246 bool qeth_l2_vnicc_is_in_use(struct qeth_card
*card
)
2248 /* if everything is turned off, VNICC is not active */
2249 if (!card
->options
.vnicc
.cur_chars
)
2251 /* default values are only OK if rx_bcast was not enabled by user
2252 * or the card is offline.
2254 if (card
->options
.vnicc
.cur_chars
== QETH_VNICC_DEFAULT
) {
2255 if (!card
->options
.vnicc
.rx_bcast_enabled
||
2256 !qeth_card_hw_is_reachable(card
))
2262 /* recover user timeout setting */
2263 static bool qeth_l2_vnicc_recover_timeout(struct qeth_card
*card
, u32 vnicc
,
2266 if (card
->options
.vnicc
.sup_chars
& vnicc
&&
2267 card
->options
.vnicc
.getset_timeout_sup
& vnicc
&&
2268 !qeth_l2_vnicc_getset_timeout(card
, vnicc
, IPA_VNICC_SET_TIMEOUT
,
2271 *timeout
= QETH_VNICC_DEFAULT_TIMEOUT
;
2275 /* recover user characteristic setting */
2276 static bool qeth_l2_vnicc_recover_char(struct qeth_card
*card
, u32 vnicc
,
2279 u32 cmd
= enable
? IPA_VNICC_ENABLE
: IPA_VNICC_DISABLE
;
2281 if (card
->options
.vnicc
.sup_chars
& vnicc
&&
2282 card
->options
.vnicc
.set_char_sup
& vnicc
&&
2283 !qeth_l2_vnicc_set_char(card
, vnicc
, cmd
))
2285 card
->options
.vnicc
.wanted_chars
&= ~vnicc
;
2286 card
->options
.vnicc
.wanted_chars
|= QETH_VNICC_DEFAULT
& vnicc
;
2290 /* (re-)initialize VNICC */
2291 static void qeth_l2_vnicc_init(struct qeth_card
*card
)
2293 u32
*timeout
= &card
->options
.vnicc
.learning_timeout
;
2294 unsigned int chars_len
, i
;
2295 unsigned long chars_tmp
;
2296 u32 sup_cmds
, vnicc
;
2299 QETH_CARD_TEXT(card
, 2, "vniccini");
2300 /* reset rx_bcast */
2301 card
->options
.vnicc
.rx_bcast_enabled
= 0;
2302 /* initial query and storage of VNIC characteristics */
2303 if (qeth_l2_vnicc_query_chars(card
)) {
2304 if (card
->options
.vnicc
.wanted_chars
!= QETH_VNICC_DEFAULT
||
2305 *timeout
!= QETH_VNICC_DEFAULT_TIMEOUT
)
2306 dev_err(&card
->gdev
->dev
, "Configuring the VNIC characteristics failed\n");
2307 /* fail quietly if user didn't change the default config */
2308 card
->options
.vnicc
.sup_chars
= 0;
2309 card
->options
.vnicc
.cur_chars
= 0;
2310 card
->options
.vnicc
.wanted_chars
= QETH_VNICC_DEFAULT
;
2313 /* get supported commands for each supported characteristic */
2314 chars_tmp
= card
->options
.vnicc
.sup_chars
;
2315 chars_len
= sizeof(card
->options
.vnicc
.sup_chars
) * BITS_PER_BYTE
;
2316 for_each_set_bit(i
, &chars_tmp
, chars_len
) {
2318 qeth_l2_vnicc_query_cmds(card
, vnicc
, &sup_cmds
);
2319 if (!(sup_cmds
& IPA_VNICC_SET_TIMEOUT
) ||
2320 !(sup_cmds
& IPA_VNICC_GET_TIMEOUT
))
2321 card
->options
.vnicc
.getset_timeout_sup
&= ~vnicc
;
2322 if (!(sup_cmds
& IPA_VNICC_ENABLE
) ||
2323 !(sup_cmds
& IPA_VNICC_DISABLE
))
2324 card
->options
.vnicc
.set_char_sup
&= ~vnicc
;
2326 /* enforce assumed default values and recover settings, if changed */
2327 error
= qeth_l2_vnicc_recover_timeout(card
, QETH_VNICC_LEARNING
,
2329 chars_tmp
= card
->options
.vnicc
.wanted_chars
^ QETH_VNICC_DEFAULT
;
2330 chars_tmp
|= QETH_VNICC_BRIDGE_INVISIBLE
;
2331 chars_len
= sizeof(card
->options
.vnicc
.wanted_chars
) * BITS_PER_BYTE
;
2332 for_each_set_bit(i
, &chars_tmp
, chars_len
) {
2334 enable
= card
->options
.vnicc
.wanted_chars
& vnicc
;
2335 error
|= qeth_l2_vnicc_recover_char(card
, vnicc
, enable
);
2338 dev_err(&card
->gdev
->dev
, "Configuring the VNIC characteristics failed\n");
2341 /* configure default values of VNIC characteristics */
2342 static void qeth_l2_vnicc_set_defaults(struct qeth_card
*card
)
2344 /* characteristics values */
2345 card
->options
.vnicc
.sup_chars
= QETH_VNICC_ALL
;
2346 card
->options
.vnicc
.cur_chars
= QETH_VNICC_DEFAULT
;
2347 card
->options
.vnicc
.learning_timeout
= QETH_VNICC_DEFAULT_TIMEOUT
;
2348 /* supported commands */
2349 card
->options
.vnicc
.set_char_sup
= QETH_VNICC_ALL
;
2350 card
->options
.vnicc
.getset_timeout_sup
= QETH_VNICC_LEARNING
;
2351 /* settings wanted by users */
2352 card
->options
.vnicc
.wanted_chars
= QETH_VNICC_DEFAULT
;
2355 module_init(qeth_l2_init
);
2356 module_exit(qeth_l2_exit
);
2357 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
2358 MODULE_DESCRIPTION("qeth layer 2 discipline");
2359 MODULE_LICENSE("GPL");