2 * drivers/s390/net/qeth_l2_main.c
4 * Copyright IBM Corp. 2007, 2009
5 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
6 * Frank Pavlic <fpavlic@de.ibm.com>,
7 * Thomas Spatzier <tspat@de.ibm.com>,
8 * Frank Blaschka <frank.blaschka@de.ibm.com>
11 #define KMSG_COMPONENT "qeth"
12 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
14 #include <linux/module.h>
15 #include <linux/moduleparam.h>
16 #include <linux/string.h>
17 #include <linux/errno.h>
18 #include <linux/kernel.h>
19 #include <linux/etherdevice.h>
20 #include <linux/mii.h>
22 #include <linux/list.h>
24 #include "qeth_core.h"
26 static int qeth_l2_set_offline(struct ccwgroup_device
*);
27 static int qeth_l2_stop(struct net_device
*);
28 static int qeth_l2_send_delmac(struct qeth_card
*, __u8
*);
29 static int qeth_l2_send_setdelmac(struct qeth_card
*, __u8
*,
31 int (*reply_cb
) (struct qeth_card
*,
34 static void qeth_l2_set_multicast_list(struct net_device
*);
35 static int qeth_l2_recover(void *);
37 static int qeth_l2_do_ioctl(struct net_device
*dev
, struct ifreq
*rq
, int cmd
)
39 struct qeth_card
*card
= dev
->ml_priv
;
40 struct mii_ioctl_data
*mii_data
;
46 if ((card
->state
!= CARD_STATE_UP
) &&
47 (card
->state
!= CARD_STATE_SOFTSETUP
))
50 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
54 case SIOC_QETH_ADP_SET_SNMP_CONTROL
:
55 rc
= qeth_snmp_command(card
, rq
->ifr_ifru
.ifru_data
);
57 case SIOC_QETH_GET_CARD_TYPE
:
58 if ((card
->info
.type
== QETH_CARD_TYPE_OSAE
) &&
64 mii_data
= if_mii(rq
);
68 mii_data
= if_mii(rq
);
69 if (mii_data
->phy_id
!= 0)
72 mii_data
->val_out
= qeth_mdio_read(dev
,
73 mii_data
->phy_id
, mii_data
->reg_num
);
79 QETH_DBF_TEXT_(TRACE
, 2, "ioce%d", rc
);
83 static int qeth_l2_verify_dev(struct net_device
*dev
)
85 struct qeth_card
*card
;
89 read_lock_irqsave(&qeth_core_card_list
.rwlock
, flags
);
90 list_for_each_entry(card
, &qeth_core_card_list
.list
, list
) {
91 if (card
->dev
== dev
) {
96 read_unlock_irqrestore(&qeth_core_card_list
.rwlock
, flags
);
101 static struct net_device
*qeth_l2_netdev_by_devno(unsigned char *read_dev_no
)
103 struct qeth_card
*card
;
104 struct net_device
*ndev
;
107 struct ccw_dev_id read_devid
;
110 memcpy(&temp_dev_no
, read_dev_no
, 2);
111 read_lock_irqsave(&qeth_core_card_list
.rwlock
, flags
);
112 list_for_each_entry(card
, &qeth_core_card_list
.list
, list
) {
113 ccw_device_get_id(CARD_RDEV(card
), &read_devid
);
114 if (read_devid
.devno
== temp_dev_no
) {
119 read_unlock_irqrestore(&qeth_core_card_list
.rwlock
, flags
);
123 static int qeth_l2_send_setgroupmac_cb(struct qeth_card
*card
,
124 struct qeth_reply
*reply
,
127 struct qeth_ipa_cmd
*cmd
;
130 QETH_DBF_TEXT(TRACE
, 2, "L2Sgmacb");
131 cmd
= (struct qeth_ipa_cmd
*) data
;
132 mac
= &cmd
->data
.setdelmac
.mac
[0];
133 /* MAC already registered, needed in couple/uncouple case */
134 if (cmd
->hdr
.return_code
== IPA_RC_L2_DUP_MAC
) {
135 QETH_DBF_MESSAGE(2, "Group MAC %pM already existing on %s \n",
136 mac
, QETH_CARD_IFNAME(card
));
137 cmd
->hdr
.return_code
= 0;
139 if (cmd
->hdr
.return_code
)
140 QETH_DBF_MESSAGE(2, "Could not set group MAC %pM on %s: %x\n",
141 mac
, QETH_CARD_IFNAME(card
), cmd
->hdr
.return_code
);
145 static int qeth_l2_send_setgroupmac(struct qeth_card
*card
, __u8
*mac
)
147 QETH_DBF_TEXT(TRACE
, 2, "L2Sgmac");
148 return qeth_l2_send_setdelmac(card
, mac
, IPA_CMD_SETGMAC
,
149 qeth_l2_send_setgroupmac_cb
);
152 static int qeth_l2_send_delgroupmac_cb(struct qeth_card
*card
,
153 struct qeth_reply
*reply
,
156 struct qeth_ipa_cmd
*cmd
;
159 QETH_DBF_TEXT(TRACE
, 2, "L2Dgmacb");
160 cmd
= (struct qeth_ipa_cmd
*) data
;
161 mac
= &cmd
->data
.setdelmac
.mac
[0];
162 if (cmd
->hdr
.return_code
)
163 QETH_DBF_MESSAGE(2, "Could not delete group MAC %pM on %s: %x\n",
164 mac
, QETH_CARD_IFNAME(card
), cmd
->hdr
.return_code
);
168 static int qeth_l2_send_delgroupmac(struct qeth_card
*card
, __u8
*mac
)
170 QETH_DBF_TEXT(TRACE
, 2, "L2Dgmac");
171 return qeth_l2_send_setdelmac(card
, mac
, IPA_CMD_DELGMAC
,
172 qeth_l2_send_delgroupmac_cb
);
175 static void qeth_l2_add_mc(struct qeth_card
*card
, __u8
*mac
, int vmac
)
177 struct qeth_mc_mac
*mc
;
180 mc
= kmalloc(sizeof(struct qeth_mc_mac
), GFP_ATOMIC
);
185 memcpy(mc
->mc_addr
, mac
, OSA_ADDR_LEN
);
186 mc
->mc_addrlen
= OSA_ADDR_LEN
;
190 rc
= qeth_l2_send_setdelmac(card
, mac
, IPA_CMD_SETVMAC
,
193 rc
= qeth_l2_send_setgroupmac(card
, mac
);
197 list_add_tail(&mc
->list
, &card
->mc_list
);
202 static void qeth_l2_del_all_mc(struct qeth_card
*card
)
204 struct qeth_mc_mac
*mc
, *tmp
;
206 spin_lock_bh(&card
->mclock
);
207 list_for_each_entry_safe(mc
, tmp
, &card
->mc_list
, list
) {
209 qeth_l2_send_setdelmac(card
, mc
->mc_addr
,
210 IPA_CMD_DELVMAC
, NULL
);
212 qeth_l2_send_delgroupmac(card
, mc
->mc_addr
);
216 spin_unlock_bh(&card
->mclock
);
219 static void qeth_l2_get_packet_type(struct qeth_card
*card
,
220 struct qeth_hdr
*hdr
, struct sk_buff
*skb
)
224 if (!memcmp(skb
->data
+ QETH_HEADER_SIZE
,
225 skb
->dev
->broadcast
, 6)) {
227 hdr
->hdr
.l2
.flags
[2] |= QETH_LAYER2_FLAG_BROADCAST
;
230 hdr_mac
= *((__u16
*)skb
->data
);
232 switch (card
->info
.link_type
) {
233 case QETH_LINK_TYPE_HSTR
:
234 case QETH_LINK_TYPE_LANE_TR
:
235 if ((hdr_mac
== QETH_TR_MAC_NC
) ||
236 (hdr_mac
== QETH_TR_MAC_C
))
237 hdr
->hdr
.l2
.flags
[2] |= QETH_LAYER2_FLAG_MULTICAST
;
239 hdr
->hdr
.l2
.flags
[2] |= QETH_LAYER2_FLAG_UNICAST
;
241 /* eth or so multicast? */
243 if ((hdr_mac
== QETH_ETH_MAC_V4
) ||
244 (hdr_mac
== QETH_ETH_MAC_V6
))
245 hdr
->hdr
.l2
.flags
[2] |= QETH_LAYER2_FLAG_MULTICAST
;
247 hdr
->hdr
.l2
.flags
[2] |= QETH_LAYER2_FLAG_UNICAST
;
251 static void qeth_l2_fill_header(struct qeth_card
*card
, struct qeth_hdr
*hdr
,
252 struct sk_buff
*skb
, int ipv
, int cast_type
)
254 struct vlan_ethhdr
*veth
= (struct vlan_ethhdr
*)skb_mac_header(skb
);
256 memset(hdr
, 0, sizeof(struct qeth_hdr
));
257 hdr
->hdr
.l2
.id
= QETH_HEADER_TYPE_LAYER2
;
259 /* set byte byte 3 to casting flags */
260 if (cast_type
== RTN_MULTICAST
)
261 hdr
->hdr
.l2
.flags
[2] |= QETH_LAYER2_FLAG_MULTICAST
;
262 else if (cast_type
== RTN_BROADCAST
)
263 hdr
->hdr
.l2
.flags
[2] |= QETH_LAYER2_FLAG_BROADCAST
;
265 qeth_l2_get_packet_type(card
, hdr
, skb
);
267 hdr
->hdr
.l2
.pkt_length
= skb
->len
-QETH_HEADER_SIZE
;
268 /* VSWITCH relies on the VLAN
269 * information to be present in
271 if (veth
->h_vlan_proto
== __constant_htons(ETH_P_8021Q
)) {
272 hdr
->hdr
.l2
.flags
[2] |= QETH_LAYER2_FLAG_VLAN
;
273 hdr
->hdr
.l2
.vlan_id
= ntohs(veth
->h_vlan_TCI
);
277 static int qeth_l2_send_setdelvlan_cb(struct qeth_card
*card
,
278 struct qeth_reply
*reply
, unsigned long data
)
280 struct qeth_ipa_cmd
*cmd
;
282 QETH_DBF_TEXT(TRACE
, 2, "L2sdvcb");
283 cmd
= (struct qeth_ipa_cmd
*) data
;
284 if (cmd
->hdr
.return_code
) {
285 QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. "
286 "Continuing\n", cmd
->data
.setdelvlan
.vlan_id
,
287 QETH_CARD_IFNAME(card
), cmd
->hdr
.return_code
);
288 QETH_DBF_TEXT_(TRACE
, 2, "L2VL%4x", cmd
->hdr
.command
);
289 QETH_DBF_TEXT_(TRACE
, 2, "L2%s", CARD_BUS_ID(card
));
290 QETH_DBF_TEXT_(TRACE
, 2, "err%d", cmd
->hdr
.return_code
);
295 static int qeth_l2_send_setdelvlan(struct qeth_card
*card
, __u16 i
,
296 enum qeth_ipa_cmds ipacmd
)
298 struct qeth_ipa_cmd
*cmd
;
299 struct qeth_cmd_buffer
*iob
;
301 QETH_DBF_TEXT_(TRACE
, 4, "L2sdv%x", ipacmd
);
302 iob
= qeth_get_ipacmd_buffer(card
, ipacmd
, QETH_PROT_IPV4
);
303 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
304 cmd
->data
.setdelvlan
.vlan_id
= i
;
305 return qeth_send_ipa_cmd(card
, iob
,
306 qeth_l2_send_setdelvlan_cb
, NULL
);
309 static void qeth_l2_process_vlans(struct qeth_card
*card
, int clear
)
311 struct qeth_vlan_vid
*id
;
312 QETH_DBF_TEXT(TRACE
, 3, "L2prcvln");
313 spin_lock_bh(&card
->vlanlock
);
314 list_for_each_entry(id
, &card
->vid_list
, list
) {
316 qeth_l2_send_setdelvlan(card
, id
->vid
,
319 qeth_l2_send_setdelvlan(card
, id
->vid
,
322 spin_unlock_bh(&card
->vlanlock
);
325 static void qeth_l2_vlan_rx_add_vid(struct net_device
*dev
, unsigned short vid
)
327 struct qeth_card
*card
= dev
->ml_priv
;
328 struct qeth_vlan_vid
*id
;
330 QETH_DBF_TEXT_(TRACE
, 4, "aid:%d", vid
);
331 if (qeth_wait_for_threads(card
, QETH_RECOVER_THREAD
)) {
332 QETH_DBF_TEXT(TRACE
, 3, "aidREC");
335 id
= kmalloc(sizeof(struct qeth_vlan_vid
), GFP_ATOMIC
);
338 qeth_l2_send_setdelvlan(card
, vid
, IPA_CMD_SETVLAN
);
339 spin_lock_bh(&card
->vlanlock
);
340 list_add_tail(&id
->list
, &card
->vid_list
);
341 spin_unlock_bh(&card
->vlanlock
);
345 static void qeth_l2_vlan_rx_kill_vid(struct net_device
*dev
, unsigned short vid
)
347 struct qeth_vlan_vid
*id
, *tmpid
= NULL
;
348 struct qeth_card
*card
= dev
->ml_priv
;
350 QETH_DBF_TEXT_(TRACE
, 4, "kid:%d", vid
);
351 if (qeth_wait_for_threads(card
, QETH_RECOVER_THREAD
)) {
352 QETH_DBF_TEXT(TRACE
, 3, "kidREC");
355 spin_lock_bh(&card
->vlanlock
);
356 list_for_each_entry(id
, &card
->vid_list
, list
) {
357 if (id
->vid
== vid
) {
363 spin_unlock_bh(&card
->vlanlock
);
365 qeth_l2_send_setdelvlan(card
, vid
, IPA_CMD_DELVLAN
);
368 qeth_l2_set_multicast_list(card
->dev
);
371 static int qeth_l2_stop_card(struct qeth_card
*card
, int recovery_mode
)
375 QETH_DBF_TEXT(SETUP
, 2, "stopcard");
376 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
378 qeth_set_allowed_threads(card
, 0, 1);
379 if (card
->read
.state
== CH_STATE_UP
&&
380 card
->write
.state
== CH_STATE_UP
&&
381 (card
->state
== CARD_STATE_UP
)) {
383 card
->info
.type
!= QETH_CARD_TYPE_OSN
) {
384 qeth_l2_stop(card
->dev
);
387 dev_close(card
->dev
);
390 if (!card
->use_hard_stop
||
392 __u8
*mac
= &card
->dev
->dev_addr
[0];
393 rc
= qeth_l2_send_delmac(card
, mac
);
394 QETH_DBF_TEXT_(SETUP
, 2, "Lerr%d", rc
);
396 card
->state
= CARD_STATE_SOFTSETUP
;
398 if (card
->state
== CARD_STATE_SOFTSETUP
) {
399 qeth_l2_process_vlans(card
, 1);
400 if (!card
->use_hard_stop
||
402 qeth_l2_del_all_mc(card
);
403 qeth_clear_ipacmd_list(card
);
404 card
->state
= CARD_STATE_HARDSETUP
;
406 if (card
->state
== CARD_STATE_HARDSETUP
) {
407 qeth_qdio_clear_card(card
, 0);
408 qeth_clear_qdio_buffers(card
);
409 qeth_clear_working_pool_list(card
);
410 card
->state
= CARD_STATE_DOWN
;
412 if (card
->state
== CARD_STATE_DOWN
) {
413 qeth_clear_cmd_buffers(&card
->read
);
414 qeth_clear_cmd_buffers(&card
->write
);
416 card
->use_hard_stop
= 0;
420 static void qeth_l2_process_inbound_buffer(struct qeth_card
*card
,
421 struct qeth_qdio_buffer
*buf
, int index
)
423 struct qdio_buffer_element
*element
;
425 struct qeth_hdr
*hdr
;
429 /* get first element of current buffer */
430 element
= (struct qdio_buffer_element
*)&buf
->buffer
->element
[0];
432 if (card
->options
.performance_stats
)
433 card
->perf_stats
.bufs_rec
++;
434 while ((skb
= qeth_core_get_next_skb(card
, buf
->buffer
, &element
,
436 skb
->dev
= card
->dev
;
438 if (!(card
->dev
->flags
& IFF_UP
)) {
439 dev_kfree_skb_any(skb
);
443 switch (hdr
->hdr
.l2
.id
) {
444 case QETH_HEADER_TYPE_LAYER2
:
445 skb
->pkt_type
= PACKET_HOST
;
446 skb
->protocol
= eth_type_trans(skb
, skb
->dev
);
447 if (card
->options
.checksum_type
== NO_CHECKSUMMING
)
448 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
450 skb
->ip_summed
= CHECKSUM_NONE
;
451 if (skb
->protocol
== htons(ETH_P_802_2
))
452 *((__u32
*)skb
->cb
) = ++card
->seqno
.pkt_seqno
;
456 case QETH_HEADER_TYPE_OSN
:
457 if (card
->info
.type
== QETH_CARD_TYPE_OSN
) {
458 skb_push(skb
, sizeof(struct qeth_hdr
));
459 skb_copy_to_linear_data(skb
, hdr
,
460 sizeof(struct qeth_hdr
));
462 card
->osn_info
.data_cb(skb
);
467 dev_kfree_skb_any(skb
);
468 QETH_DBF_TEXT(TRACE
, 3, "inbunkno");
469 QETH_DBF_HEX(CTRL
, 3, hdr
, QETH_DBF_CTRL_LEN
);
472 card
->dev
->last_rx
= jiffies
;
473 card
->stats
.rx_packets
++;
474 card
->stats
.rx_bytes
+= len
;
478 static int qeth_l2_send_setdelmac(struct qeth_card
*card
, __u8
*mac
,
479 enum qeth_ipa_cmds ipacmd
,
480 int (*reply_cb
) (struct qeth_card
*,
484 struct qeth_ipa_cmd
*cmd
;
485 struct qeth_cmd_buffer
*iob
;
487 QETH_DBF_TEXT(TRACE
, 2, "L2sdmac");
488 iob
= qeth_get_ipacmd_buffer(card
, ipacmd
, QETH_PROT_IPV4
);
489 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
490 cmd
->data
.setdelmac
.mac_length
= OSA_ADDR_LEN
;
491 memcpy(&cmd
->data
.setdelmac
.mac
, mac
, OSA_ADDR_LEN
);
492 return qeth_send_ipa_cmd(card
, iob
, reply_cb
, NULL
);
495 static int qeth_l2_send_setmac_cb(struct qeth_card
*card
,
496 struct qeth_reply
*reply
,
499 struct qeth_ipa_cmd
*cmd
;
501 QETH_DBF_TEXT(TRACE
, 2, "L2Smaccb");
502 cmd
= (struct qeth_ipa_cmd
*) data
;
503 if (cmd
->hdr
.return_code
) {
504 QETH_DBF_TEXT_(TRACE
, 2, "L2er%x", cmd
->hdr
.return_code
);
505 card
->info
.mac_bits
&= ~QETH_LAYER2_MAC_REGISTERED
;
506 switch (cmd
->hdr
.return_code
) {
507 case IPA_RC_L2_DUP_MAC
:
508 case IPA_RC_L2_DUP_LAYER3_MAC
:
509 dev_warn(&card
->gdev
->dev
,
511 "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
513 card
->dev
->dev_addr
[0], card
->dev
->dev_addr
[1],
514 card
->dev
->dev_addr
[2], card
->dev
->dev_addr
[3],
515 card
->dev
->dev_addr
[4], card
->dev
->dev_addr
[5]);
517 case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP
:
518 case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP
:
519 dev_warn(&card
->gdev
->dev
,
521 "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
522 "is not authorized\n",
523 card
->dev
->dev_addr
[0], card
->dev
->dev_addr
[1],
524 card
->dev
->dev_addr
[2], card
->dev
->dev_addr
[3],
525 card
->dev
->dev_addr
[4], card
->dev
->dev_addr
[5]);
530 cmd
->hdr
.return_code
= -EIO
;
532 card
->info
.mac_bits
|= QETH_LAYER2_MAC_REGISTERED
;
533 memcpy(card
->dev
->dev_addr
, cmd
->data
.setdelmac
.mac
,
535 dev_info(&card
->gdev
->dev
,
536 "MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
537 "successfully registered on device %s\n",
538 card
->dev
->dev_addr
[0], card
->dev
->dev_addr
[1],
539 card
->dev
->dev_addr
[2], card
->dev
->dev_addr
[3],
540 card
->dev
->dev_addr
[4], card
->dev
->dev_addr
[5],
546 static int qeth_l2_send_setmac(struct qeth_card
*card
, __u8
*mac
)
548 QETH_DBF_TEXT(TRACE
, 2, "L2Setmac");
549 return qeth_l2_send_setdelmac(card
, mac
, IPA_CMD_SETVMAC
,
550 qeth_l2_send_setmac_cb
);
553 static int qeth_l2_send_delmac_cb(struct qeth_card
*card
,
554 struct qeth_reply
*reply
,
557 struct qeth_ipa_cmd
*cmd
;
559 QETH_DBF_TEXT(TRACE
, 2, "L2Dmaccb");
560 cmd
= (struct qeth_ipa_cmd
*) data
;
561 if (cmd
->hdr
.return_code
) {
562 QETH_DBF_TEXT_(TRACE
, 2, "err%d", cmd
->hdr
.return_code
);
563 cmd
->hdr
.return_code
= -EIO
;
566 card
->info
.mac_bits
&= ~QETH_LAYER2_MAC_REGISTERED
;
571 static int qeth_l2_send_delmac(struct qeth_card
*card
, __u8
*mac
)
573 QETH_DBF_TEXT(TRACE
, 2, "L2Delmac");
574 if (!(card
->info
.mac_bits
& QETH_LAYER2_MAC_REGISTERED
))
576 return qeth_l2_send_setdelmac(card
, mac
, IPA_CMD_DELVMAC
,
577 qeth_l2_send_delmac_cb
);
580 static int qeth_l2_request_initial_mac(struct qeth_card
*card
)
583 char vendor_pre
[] = {0x02, 0x00, 0x00};
585 QETH_DBF_TEXT(SETUP
, 2, "doL2init");
586 QETH_DBF_TEXT_(SETUP
, 2, "doL2%s", CARD_BUS_ID(card
));
588 rc
= qeth_query_setadapterparms(card
);
590 QETH_DBF_MESSAGE(2, "could not query adapter parameters on "
591 "device %s: x%x\n", CARD_BUS_ID(card
), rc
);
594 if ((card
->info
.type
== QETH_CARD_TYPE_IQD
) ||
595 (card
->info
.guestlan
)) {
596 rc
= qeth_setadpparms_change_macaddr(card
);
598 QETH_DBF_MESSAGE(2, "couldn't get MAC address on "
599 "device %s: x%x\n", CARD_BUS_ID(card
), rc
);
600 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
603 QETH_DBF_HEX(SETUP
, 2, card
->dev
->dev_addr
, OSA_ADDR_LEN
);
605 random_ether_addr(card
->dev
->dev_addr
);
606 memcpy(card
->dev
->dev_addr
, vendor_pre
, 3);
611 static int qeth_l2_set_mac_address(struct net_device
*dev
, void *p
)
613 struct sockaddr
*addr
= p
;
614 struct qeth_card
*card
= dev
->ml_priv
;
617 QETH_DBF_TEXT(TRACE
, 3, "setmac");
619 if (qeth_l2_verify_dev(dev
) != QETH_REAL_CARD
) {
620 QETH_DBF_TEXT(TRACE
, 3, "setmcINV");
624 if (card
->info
.type
== QETH_CARD_TYPE_OSN
) {
625 QETH_DBF_TEXT(TRACE
, 3, "setmcOSN");
628 QETH_DBF_TEXT_(TRACE
, 3, "%s", CARD_BUS_ID(card
));
629 QETH_DBF_HEX(TRACE
, 3, addr
->sa_data
, OSA_ADDR_LEN
);
630 if (qeth_wait_for_threads(card
, QETH_RECOVER_THREAD
)) {
631 QETH_DBF_TEXT(TRACE
, 3, "setmcREC");
634 rc
= qeth_l2_send_delmac(card
, &card
->dev
->dev_addr
[0]);
636 rc
= qeth_l2_send_setmac(card
, addr
->sa_data
);
640 static void qeth_l2_set_multicast_list(struct net_device
*dev
)
642 struct qeth_card
*card
= dev
->ml_priv
;
643 struct dev_addr_list
*dm
;
644 struct netdev_hw_addr
*ha
;
646 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
649 QETH_DBF_TEXT(TRACE
, 3, "setmulti");
650 if (qeth_threads_running(card
, QETH_RECOVER_THREAD
) &&
651 (card
->state
!= CARD_STATE_UP
))
653 qeth_l2_del_all_mc(card
);
654 spin_lock_bh(&card
->mclock
);
655 for (dm
= dev
->mc_list
; dm
; dm
= dm
->next
)
656 qeth_l2_add_mc(card
, dm
->da_addr
, 0);
658 list_for_each_entry(ha
, &dev
->uc
.list
, list
)
659 qeth_l2_add_mc(card
, ha
->addr
, 1);
661 spin_unlock_bh(&card
->mclock
);
662 if (!qeth_adp_supported(card
, IPA_SETADP_SET_PROMISC_MODE
))
664 qeth_setadp_promisc_mode(card
);
667 static int qeth_l2_hard_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
670 struct qeth_hdr
*hdr
= NULL
;
672 struct qeth_card
*card
= dev
->ml_priv
;
673 struct sk_buff
*new_skb
= skb
;
674 int ipv
= qeth_get_ip_version(skb
);
675 int cast_type
= qeth_get_cast_type(card
, skb
);
676 struct qeth_qdio_out_q
*queue
= card
->qdio
.out_qs
677 [qeth_get_priority_queue(card
, skb
, ipv
, cast_type
)];
678 int tx_bytes
= skb
->len
;
679 int data_offset
= -1;
680 int elements_needed
= 0;
683 if ((card
->state
!= CARD_STATE_UP
) || !card
->lan_online
) {
684 card
->stats
.tx_carrier_errors
++;
688 if ((card
->info
.type
== QETH_CARD_TYPE_OSN
) &&
689 (skb
->protocol
== htons(ETH_P_IPV6
)))
692 if (card
->options
.performance_stats
) {
693 card
->perf_stats
.outbound_cnt
++;
694 card
->perf_stats
.outbound_start_time
= qeth_get_micros();
696 netif_stop_queue(dev
);
698 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
699 hdr
= (struct qeth_hdr
*)skb
->data
;
701 if (card
->info
.type
== QETH_CARD_TYPE_IQD
) {
703 data_offset
= ETH_HLEN
;
705 hdr
= kmem_cache_alloc(qeth_core_header_cache
,
710 skb_reset_mac_header(new_skb
);
711 qeth_l2_fill_header(card
, hdr
, new_skb
, ipv
, cast_type
);
712 hdr
->hdr
.l2
.pkt_length
= new_skb
->len
;
713 memcpy(((char *)hdr
) + sizeof(struct qeth_hdr
),
714 skb_mac_header(new_skb
), ETH_HLEN
);
716 /* create a clone with writeable headroom */
717 new_skb
= skb_realloc_headroom(skb
,
718 sizeof(struct qeth_hdr
));
721 hdr
= (struct qeth_hdr
*)skb_push(new_skb
,
722 sizeof(struct qeth_hdr
));
723 skb_set_mac_header(new_skb
, sizeof(struct qeth_hdr
));
724 qeth_l2_fill_header(card
, hdr
, new_skb
, ipv
, cast_type
);
728 elements
= qeth_get_elements_no(card
, (void *)hdr
, new_skb
,
731 if (data_offset
>= 0)
732 kmem_cache_free(qeth_core_header_cache
, hdr
);
736 if (card
->info
.type
!= QETH_CARD_TYPE_IQD
)
737 rc
= qeth_do_send_packet(card
, queue
, new_skb
, hdr
,
740 rc
= qeth_do_send_packet_fast(card
, queue
, new_skb
, hdr
,
741 elements
, data_offset
, hd_len
);
743 card
->stats
.tx_packets
++;
744 card
->stats
.tx_bytes
+= tx_bytes
;
746 dev_kfree_skb_any(skb
);
749 if (data_offset
>= 0)
750 kmem_cache_free(qeth_core_header_cache
, hdr
);
754 dev_kfree_skb_any(new_skb
);
755 return NETDEV_TX_BUSY
;
760 netif_wake_queue(dev
);
761 if (card
->options
.performance_stats
)
762 card
->perf_stats
.outbound_time
+= qeth_get_micros() -
763 card
->perf_stats
.outbound_start_time
;
767 card
->stats
.tx_dropped
++;
768 card
->stats
.tx_errors
++;
769 if ((new_skb
!= skb
) && new_skb
)
770 dev_kfree_skb_any(new_skb
);
771 dev_kfree_skb_any(skb
);
772 netif_wake_queue(dev
);
776 static void qeth_l2_qdio_input_handler(struct ccw_device
*ccwdev
,
777 unsigned int qdio_err
, unsigned int queue
,
778 int first_element
, int count
, unsigned long card_ptr
)
780 struct net_device
*net_dev
;
781 struct qeth_card
*card
;
782 struct qeth_qdio_buffer
*buffer
;
786 card
= (struct qeth_card
*) card_ptr
;
788 if (card
->options
.performance_stats
) {
789 card
->perf_stats
.inbound_cnt
++;
790 card
->perf_stats
.inbound_start_time
= qeth_get_micros();
792 if (qdio_err
& QDIO_ERROR_ACTIVATE_CHECK_CONDITION
) {
793 QETH_DBF_TEXT(TRACE
, 1, "qdinchk");
794 QETH_DBF_TEXT_(TRACE
, 1, "%s", CARD_BUS_ID(card
));
795 QETH_DBF_TEXT_(TRACE
, 1, "%04X%04X", first_element
,
797 QETH_DBF_TEXT_(TRACE
, 1, "%04X", queue
);
798 qeth_schedule_recovery(card
);
801 for (i
= first_element
; i
< (first_element
+ count
); ++i
) {
802 index
= i
% QDIO_MAX_BUFFERS_PER_Q
;
803 buffer
= &card
->qdio
.in_q
->bufs
[index
];
805 qeth_check_qdio_errors(buffer
->buffer
, qdio_err
, "qinerr")))
806 qeth_l2_process_inbound_buffer(card
, buffer
, index
);
807 /* clear buffer and give back to hardware */
808 qeth_put_buffer_pool_entry(card
, buffer
->pool_entry
);
809 qeth_queue_input_buffer(card
, index
);
811 if (card
->options
.performance_stats
)
812 card
->perf_stats
.inbound_time
+= qeth_get_micros() -
813 card
->perf_stats
.inbound_start_time
;
816 static int qeth_l2_open(struct net_device
*dev
)
818 struct qeth_card
*card
= dev
->ml_priv
;
820 QETH_DBF_TEXT(TRACE
, 4, "qethopen");
821 if (card
->state
!= CARD_STATE_SOFTSETUP
)
824 if ((card
->info
.type
!= QETH_CARD_TYPE_OSN
) &&
825 (!(card
->info
.mac_bits
& QETH_LAYER2_MAC_REGISTERED
))) {
826 QETH_DBF_TEXT(TRACE
, 4, "nomacadr");
829 card
->data
.state
= CH_STATE_UP
;
830 card
->state
= CARD_STATE_UP
;
831 netif_start_queue(dev
);
833 if (!card
->lan_online
&& netif_carrier_ok(dev
))
834 netif_carrier_off(dev
);
839 static int qeth_l2_stop(struct net_device
*dev
)
841 struct qeth_card
*card
= dev
->ml_priv
;
843 QETH_DBF_TEXT(TRACE
, 4, "qethstop");
844 netif_tx_disable(dev
);
845 if (card
->state
== CARD_STATE_UP
)
846 card
->state
= CARD_STATE_SOFTSETUP
;
850 static int qeth_l2_probe_device(struct ccwgroup_device
*gdev
)
852 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
854 INIT_LIST_HEAD(&card
->vid_list
);
855 INIT_LIST_HEAD(&card
->mc_list
);
856 card
->options
.layer2
= 1;
857 card
->discipline
.input_handler
= (qdio_handler_t
*)
858 qeth_l2_qdio_input_handler
;
859 card
->discipline
.output_handler
= (qdio_handler_t
*)
860 qeth_qdio_output_handler
;
861 card
->discipline
.recover
= qeth_l2_recover
;
865 static void qeth_l2_remove_device(struct ccwgroup_device
*cgdev
)
867 struct qeth_card
*card
= dev_get_drvdata(&cgdev
->dev
);
869 qeth_set_allowed_threads(card
, 0, 1);
870 wait_event(card
->wait_q
, qeth_threads_running(card
, 0xffffffff) == 0);
872 if (cgdev
->state
== CCWGROUP_ONLINE
) {
873 card
->use_hard_stop
= 1;
874 qeth_l2_set_offline(cgdev
);
878 unregister_netdev(card
->dev
);
882 qeth_l2_del_all_mc(card
);
886 static struct ethtool_ops qeth_l2_ethtool_ops
= {
887 .get_link
= ethtool_op_get_link
,
888 .get_strings
= qeth_core_get_strings
,
889 .get_ethtool_stats
= qeth_core_get_ethtool_stats
,
890 .get_stats_count
= qeth_core_get_stats_count
,
891 .get_drvinfo
= qeth_core_get_drvinfo
,
892 .get_settings
= qeth_core_ethtool_get_settings
,
895 static struct ethtool_ops qeth_l2_osn_ops
= {
896 .get_strings
= qeth_core_get_strings
,
897 .get_ethtool_stats
= qeth_core_get_ethtool_stats
,
898 .get_stats_count
= qeth_core_get_stats_count
,
899 .get_drvinfo
= qeth_core_get_drvinfo
,
902 static const struct net_device_ops qeth_l2_netdev_ops
= {
903 .ndo_open
= qeth_l2_open
,
904 .ndo_stop
= qeth_l2_stop
,
905 .ndo_get_stats
= qeth_get_stats
,
906 .ndo_start_xmit
= qeth_l2_hard_start_xmit
,
907 .ndo_validate_addr
= eth_validate_addr
,
908 .ndo_set_multicast_list
= qeth_l2_set_multicast_list
,
909 .ndo_do_ioctl
= qeth_l2_do_ioctl
,
910 .ndo_set_mac_address
= qeth_l2_set_mac_address
,
911 .ndo_change_mtu
= qeth_change_mtu
,
912 .ndo_vlan_rx_add_vid
= qeth_l2_vlan_rx_add_vid
,
913 .ndo_vlan_rx_kill_vid
= qeth_l2_vlan_rx_kill_vid
,
914 .ndo_tx_timeout
= qeth_tx_timeout
,
917 static int qeth_l2_setup_netdev(struct qeth_card
*card
)
919 switch (card
->info
.type
) {
920 case QETH_CARD_TYPE_OSAE
:
921 card
->dev
= alloc_etherdev(0);
923 case QETH_CARD_TYPE_IQD
:
924 card
->dev
= alloc_netdev(0, "hsi%d", ether_setup
);
926 case QETH_CARD_TYPE_OSN
:
927 card
->dev
= alloc_netdev(0, "osn%d", ether_setup
);
928 card
->dev
->flags
|= IFF_NOARP
;
931 card
->dev
= alloc_etherdev(0);
937 card
->dev
->ml_priv
= card
;
938 card
->dev
->watchdog_timeo
= QETH_TX_TIMEOUT
;
939 card
->dev
->mtu
= card
->info
.initial_mtu
;
940 card
->dev
->netdev_ops
= &qeth_l2_netdev_ops
;
941 if (card
->info
.type
!= QETH_CARD_TYPE_OSN
)
942 SET_ETHTOOL_OPS(card
->dev
, &qeth_l2_ethtool_ops
);
944 SET_ETHTOOL_OPS(card
->dev
, &qeth_l2_osn_ops
);
945 card
->dev
->features
|= NETIF_F_HW_VLAN_FILTER
;
946 card
->info
.broadcast_capable
= 1;
947 qeth_l2_request_initial_mac(card
);
948 SET_NETDEV_DEV(card
->dev
, &card
->gdev
->dev
);
949 return register_netdev(card
->dev
);
952 static int __qeth_l2_set_online(struct ccwgroup_device
*gdev
, int recovery_mode
)
954 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
956 enum qeth_card_states recover_flag
;
959 QETH_DBF_TEXT(SETUP
, 2, "setonlin");
960 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
962 qeth_set_allowed_threads(card
, QETH_RECOVER_THREAD
, 1);
963 recover_flag
= card
->state
;
964 rc
= ccw_device_set_online(CARD_RDEV(card
));
966 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
969 rc
= ccw_device_set_online(CARD_WDEV(card
));
971 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
974 rc
= ccw_device_set_online(CARD_DDEV(card
));
976 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
980 rc
= qeth_core_hardsetup_card(card
);
982 QETH_DBF_TEXT_(SETUP
, 2, "2err%d", rc
);
986 if (!card
->dev
&& qeth_l2_setup_netdev(card
))
989 if (card
->info
.type
!= QETH_CARD_TYPE_OSN
)
990 qeth_l2_send_setmac(card
, &card
->dev
->dev_addr
[0]);
992 card
->state
= CARD_STATE_HARDSETUP
;
993 qeth_print_status_message(card
);
996 QETH_DBF_TEXT(SETUP
, 2, "softsetp");
998 rc
= qeth_send_startlan(card
);
1000 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
1002 dev_warn(&card
->gdev
->dev
,
1003 "The LAN is offline\n");
1004 card
->lan_online
= 0;
1009 card
->lan_online
= 1;
1011 if (card
->info
.type
!= QETH_CARD_TYPE_OSN
) {
1012 qeth_set_large_send(card
, card
->options
.large_send
);
1013 qeth_l2_process_vlans(card
, 0);
1016 netif_tx_disable(card
->dev
);
1018 rc
= qeth_init_qdio_queues(card
);
1020 QETH_DBF_TEXT_(SETUP
, 2, "6err%d", rc
);
1023 card
->state
= CARD_STATE_SOFTSETUP
;
1024 netif_carrier_on(card
->dev
);
1026 qeth_set_allowed_threads(card
, 0xffffffff, 0);
1027 if (recover_flag
== CARD_STATE_RECOVER
) {
1028 if (recovery_mode
&&
1029 card
->info
.type
!= QETH_CARD_TYPE_OSN
) {
1030 qeth_l2_open(card
->dev
);
1033 dev_open(card
->dev
);
1036 /* this also sets saved unicast addresses */
1037 qeth_l2_set_multicast_list(card
->dev
);
1039 /* let user_space know that device is online */
1040 kobject_uevent(&gdev
->dev
.kobj
, KOBJ_CHANGE
);
1043 card
->use_hard_stop
= 1;
1044 qeth_l2_stop_card(card
, 0);
1045 ccw_device_set_offline(CARD_DDEV(card
));
1046 ccw_device_set_offline(CARD_WDEV(card
));
1047 ccw_device_set_offline(CARD_RDEV(card
));
1048 if (recover_flag
== CARD_STATE_RECOVER
)
1049 card
->state
= CARD_STATE_RECOVER
;
1051 card
->state
= CARD_STATE_DOWN
;
1055 static int qeth_l2_set_online(struct ccwgroup_device
*gdev
)
1057 return __qeth_l2_set_online(gdev
, 0);
1060 static int __qeth_l2_set_offline(struct ccwgroup_device
*cgdev
,
1063 struct qeth_card
*card
= dev_get_drvdata(&cgdev
->dev
);
1064 int rc
= 0, rc2
= 0, rc3
= 0;
1065 enum qeth_card_states recover_flag
;
1067 QETH_DBF_TEXT(SETUP
, 3, "setoffl");
1068 QETH_DBF_HEX(SETUP
, 3, &card
, sizeof(void *));
1070 if (card
->dev
&& netif_carrier_ok(card
->dev
))
1071 netif_carrier_off(card
->dev
);
1072 recover_flag
= card
->state
;
1073 qeth_l2_stop_card(card
, recovery_mode
);
1074 rc
= ccw_device_set_offline(CARD_DDEV(card
));
1075 rc2
= ccw_device_set_offline(CARD_WDEV(card
));
1076 rc3
= ccw_device_set_offline(CARD_RDEV(card
));
1078 rc
= (rc2
) ? rc2
: rc3
;
1080 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
1081 if (recover_flag
== CARD_STATE_UP
)
1082 card
->state
= CARD_STATE_RECOVER
;
1083 /* let user_space know that device is offline */
1084 kobject_uevent(&cgdev
->dev
.kobj
, KOBJ_CHANGE
);
1088 static int qeth_l2_set_offline(struct ccwgroup_device
*cgdev
)
1090 return __qeth_l2_set_offline(cgdev
, 0);
1093 static int qeth_l2_recover(void *ptr
)
1095 struct qeth_card
*card
;
1098 card
= (struct qeth_card
*) ptr
;
1099 QETH_DBF_TEXT(TRACE
, 2, "recover1");
1100 QETH_DBF_HEX(TRACE
, 2, &card
, sizeof(void *));
1101 if (!qeth_do_run_thread(card
, QETH_RECOVER_THREAD
))
1103 QETH_DBF_TEXT(TRACE
, 2, "recover2");
1104 dev_warn(&card
->gdev
->dev
,
1105 "A recovery process has been started for the device\n");
1106 card
->use_hard_stop
= 1;
1107 __qeth_l2_set_offline(card
->gdev
, 1);
1108 rc
= __qeth_l2_set_online(card
->gdev
, 1);
1109 /* don't run another scheduled recovery */
1110 qeth_clear_thread_start_bit(card
, QETH_RECOVER_THREAD
);
1111 qeth_clear_thread_running_bit(card
, QETH_RECOVER_THREAD
);
1113 dev_info(&card
->gdev
->dev
,
1114 "Device successfully recovered!\n");
1118 dev_close(card
->dev
);
1121 dev_warn(&card
->gdev
->dev
, "The qeth device driver "
1122 "failed to recover an error on the device\n");
1127 static int __init
qeth_l2_init(void)
1129 pr_info("register layer 2 discipline\n");
1133 static void __exit
qeth_l2_exit(void)
1135 pr_info("unregister layer 2 discipline\n");
1138 static void qeth_l2_shutdown(struct ccwgroup_device
*gdev
)
1140 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
1141 qeth_qdio_clear_card(card
, 0);
1142 qeth_clear_qdio_buffers(card
);
1145 static int qeth_l2_pm_suspend(struct ccwgroup_device
*gdev
)
1147 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
1150 netif_device_detach(card
->dev
);
1151 qeth_set_allowed_threads(card
, 0, 1);
1152 wait_event(card
->wait_q
, qeth_threads_running(card
, 0xffffffff) == 0);
1153 if (gdev
->state
== CCWGROUP_OFFLINE
)
1155 if (card
->state
== CARD_STATE_UP
) {
1156 card
->use_hard_stop
= 1;
1157 __qeth_l2_set_offline(card
->gdev
, 1);
1159 __qeth_l2_set_offline(card
->gdev
, 0);
1163 static int qeth_l2_pm_resume(struct ccwgroup_device
*gdev
)
1165 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
1168 if (gdev
->state
== CCWGROUP_OFFLINE
)
1171 if (card
->state
== CARD_STATE_RECOVER
) {
1172 rc
= __qeth_l2_set_online(card
->gdev
, 1);
1176 dev_close(card
->dev
);
1181 rc
= __qeth_l2_set_online(card
->gdev
, 0);
1183 qeth_set_allowed_threads(card
, 0xffffffff, 0);
1185 netif_device_attach(card
->dev
);
1187 dev_warn(&card
->gdev
->dev
, "The qeth device driver "
1188 "failed to recover an error on the device\n");
1192 struct ccwgroup_driver qeth_l2_ccwgroup_driver
= {
1193 .probe
= qeth_l2_probe_device
,
1194 .remove
= qeth_l2_remove_device
,
1195 .set_online
= qeth_l2_set_online
,
1196 .set_offline
= qeth_l2_set_offline
,
1197 .shutdown
= qeth_l2_shutdown
,
1198 .freeze
= qeth_l2_pm_suspend
,
1199 .thaw
= qeth_l2_pm_resume
,
1200 .restore
= qeth_l2_pm_resume
,
1202 EXPORT_SYMBOL_GPL(qeth_l2_ccwgroup_driver
);
1204 static int qeth_osn_send_control_data(struct qeth_card
*card
, int len
,
1205 struct qeth_cmd_buffer
*iob
)
1207 unsigned long flags
;
1210 QETH_DBF_TEXT(TRACE
, 5, "osndctrd");
1212 wait_event(card
->wait_q
,
1213 atomic_cmpxchg(&card
->write
.irq_pending
, 0, 1) == 0);
1214 qeth_prepare_control_data(card
, len
, iob
);
1215 QETH_DBF_TEXT(TRACE
, 6, "osnoirqp");
1216 spin_lock_irqsave(get_ccwdev_lock(card
->write
.ccwdev
), flags
);
1217 rc
= ccw_device_start(card
->write
.ccwdev
, &card
->write
.ccw
,
1218 (addr_t
) iob
, 0, 0);
1219 spin_unlock_irqrestore(get_ccwdev_lock(card
->write
.ccwdev
), flags
);
1221 QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: "
1222 "ccw_device_start rc = %i\n", rc
);
1223 QETH_DBF_TEXT_(TRACE
, 2, " err%d", rc
);
1224 qeth_release_buffer(iob
->channel
, iob
);
1225 atomic_set(&card
->write
.irq_pending
, 0);
1226 wake_up(&card
->wait_q
);
1231 static int qeth_osn_send_ipa_cmd(struct qeth_card
*card
,
1232 struct qeth_cmd_buffer
*iob
, int data_len
)
1236 QETH_DBF_TEXT(TRACE
, 4, "osndipa");
1238 qeth_prepare_ipa_cmd(card
, iob
, QETH_PROT_OSN2
);
1239 s1
= (u16
)(IPA_PDU_HEADER_SIZE
+ data_len
);
1241 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob
->data
), &s1
, 2);
1242 memcpy(QETH_IPA_PDU_LEN_PDU1(iob
->data
), &s2
, 2);
1243 memcpy(QETH_IPA_PDU_LEN_PDU2(iob
->data
), &s2
, 2);
1244 memcpy(QETH_IPA_PDU_LEN_PDU3(iob
->data
), &s2
, 2);
1245 return qeth_osn_send_control_data(card
, s1
, iob
);
1248 int qeth_osn_assist(struct net_device
*dev
, void *data
, int data_len
)
1250 struct qeth_cmd_buffer
*iob
;
1251 struct qeth_card
*card
;
1254 QETH_DBF_TEXT(TRACE
, 2, "osnsdmc");
1257 card
= dev
->ml_priv
;
1260 if ((card
->state
!= CARD_STATE_UP
) &&
1261 (card
->state
!= CARD_STATE_SOFTSETUP
))
1263 iob
= qeth_wait_for_buffer(&card
->write
);
1264 memcpy(iob
->data
+IPA_PDU_HEADER_SIZE
, data
, data_len
);
1265 rc
= qeth_osn_send_ipa_cmd(card
, iob
, data_len
);
1268 EXPORT_SYMBOL(qeth_osn_assist
);
1270 int qeth_osn_register(unsigned char *read_dev_no
, struct net_device
**dev
,
1271 int (*assist_cb
)(struct net_device
*, void *),
1272 int (*data_cb
)(struct sk_buff
*))
1274 struct qeth_card
*card
;
1276 QETH_DBF_TEXT(TRACE
, 2, "osnreg");
1277 *dev
= qeth_l2_netdev_by_devno(read_dev_no
);
1280 card
= (*dev
)->ml_priv
;
1283 if ((assist_cb
== NULL
) || (data_cb
== NULL
))
1285 card
->osn_info
.assist_cb
= assist_cb
;
1286 card
->osn_info
.data_cb
= data_cb
;
1289 EXPORT_SYMBOL(qeth_osn_register
);
1291 void qeth_osn_deregister(struct net_device
*dev
)
1293 struct qeth_card
*card
;
1295 QETH_DBF_TEXT(TRACE
, 2, "osndereg");
1298 card
= dev
->ml_priv
;
1301 card
->osn_info
.assist_cb
= NULL
;
1302 card
->osn_info
.data_cb
= NULL
;
1305 EXPORT_SYMBOL(qeth_osn_deregister
);
1307 module_init(qeth_l2_init
);
1308 module_exit(qeth_l2_exit
);
1309 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
1310 MODULE_DESCRIPTION("qeth layer 2 discipline");
1311 MODULE_LICENSE("GPL");