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/slab.h>
20 #include <linux/etherdevice.h>
21 #include <linux/mii.h>
23 #include <linux/list.h>
25 #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 int qeth_l2_send_delmac(struct qeth_card
*, __u8
*);
30 static int qeth_l2_send_setdelmac(struct qeth_card
*, __u8
*,
32 int (*reply_cb
) (struct qeth_card
*,
35 static void qeth_l2_set_multicast_list(struct net_device
*);
36 static int qeth_l2_recover(void *);
38 static int qeth_l2_do_ioctl(struct net_device
*dev
, struct ifreq
*rq
, int cmd
)
40 struct qeth_card
*card
= dev
->ml_priv
;
41 struct mii_ioctl_data
*mii_data
;
47 if ((card
->state
!= CARD_STATE_UP
) &&
48 (card
->state
!= CARD_STATE_SOFTSETUP
))
51 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
55 case SIOC_QETH_ADP_SET_SNMP_CONTROL
:
56 rc
= qeth_snmp_command(card
, rq
->ifr_ifru
.ifru_data
);
58 case SIOC_QETH_GET_CARD_TYPE
:
59 if ((card
->info
.type
== QETH_CARD_TYPE_OSD
||
60 card
->info
.type
== QETH_CARD_TYPE_OSM
||
61 card
->info
.type
== QETH_CARD_TYPE_OSX
) &&
67 mii_data
= if_mii(rq
);
71 mii_data
= if_mii(rq
);
72 if (mii_data
->phy_id
!= 0)
75 mii_data
->val_out
= qeth_mdio_read(dev
,
76 mii_data
->phy_id
, mii_data
->reg_num
);
78 case SIOC_QETH_QUERY_OAT
:
79 rc
= qeth_query_oat_command(card
, rq
->ifr_ifru
.ifru_data
);
85 QETH_CARD_TEXT_(card
, 2, "ioce%d", rc
);
89 static int qeth_l2_verify_dev(struct net_device
*dev
)
91 struct qeth_card
*card
;
95 read_lock_irqsave(&qeth_core_card_list
.rwlock
, flags
);
96 list_for_each_entry(card
, &qeth_core_card_list
.list
, list
) {
97 if (card
->dev
== dev
) {
102 read_unlock_irqrestore(&qeth_core_card_list
.rwlock
, flags
);
107 static struct net_device
*qeth_l2_netdev_by_devno(unsigned char *read_dev_no
)
109 struct qeth_card
*card
;
110 struct net_device
*ndev
;
113 struct ccw_dev_id read_devid
;
116 memcpy(&temp_dev_no
, read_dev_no
, 2);
117 read_lock_irqsave(&qeth_core_card_list
.rwlock
, flags
);
118 list_for_each_entry(card
, &qeth_core_card_list
.list
, list
) {
119 ccw_device_get_id(CARD_RDEV(card
), &read_devid
);
120 if (read_devid
.devno
== temp_dev_no
) {
125 read_unlock_irqrestore(&qeth_core_card_list
.rwlock
, flags
);
129 static int qeth_l2_send_setgroupmac_cb(struct qeth_card
*card
,
130 struct qeth_reply
*reply
,
133 struct qeth_ipa_cmd
*cmd
;
136 QETH_CARD_TEXT(card
, 2, "L2Sgmacb");
137 cmd
= (struct qeth_ipa_cmd
*) data
;
138 mac
= &cmd
->data
.setdelmac
.mac
[0];
139 /* MAC already registered, needed in couple/uncouple case */
140 if (cmd
->hdr
.return_code
== IPA_RC_L2_DUP_MAC
) {
141 QETH_DBF_MESSAGE(2, "Group MAC %pM already existing on %s \n",
142 mac
, QETH_CARD_IFNAME(card
));
143 cmd
->hdr
.return_code
= 0;
145 if (cmd
->hdr
.return_code
)
146 QETH_DBF_MESSAGE(2, "Could not set group MAC %pM on %s: %x\n",
147 mac
, QETH_CARD_IFNAME(card
), cmd
->hdr
.return_code
);
151 static int qeth_l2_send_setgroupmac(struct qeth_card
*card
, __u8
*mac
)
153 QETH_CARD_TEXT(card
, 2, "L2Sgmac");
154 return qeth_l2_send_setdelmac(card
, mac
, IPA_CMD_SETGMAC
,
155 qeth_l2_send_setgroupmac_cb
);
158 static int qeth_l2_send_delgroupmac_cb(struct qeth_card
*card
,
159 struct qeth_reply
*reply
,
162 struct qeth_ipa_cmd
*cmd
;
165 QETH_CARD_TEXT(card
, 2, "L2Dgmacb");
166 cmd
= (struct qeth_ipa_cmd
*) data
;
167 mac
= &cmd
->data
.setdelmac
.mac
[0];
168 if (cmd
->hdr
.return_code
)
169 QETH_DBF_MESSAGE(2, "Could not delete group MAC %pM on %s: %x\n",
170 mac
, QETH_CARD_IFNAME(card
), cmd
->hdr
.return_code
);
174 static int qeth_l2_send_delgroupmac(struct qeth_card
*card
, __u8
*mac
)
176 QETH_CARD_TEXT(card
, 2, "L2Dgmac");
177 return qeth_l2_send_setdelmac(card
, mac
, IPA_CMD_DELGMAC
,
178 qeth_l2_send_delgroupmac_cb
);
181 static void qeth_l2_add_mc(struct qeth_card
*card
, __u8
*mac
, int vmac
)
183 struct qeth_mc_mac
*mc
;
186 mc
= kmalloc(sizeof(struct qeth_mc_mac
), GFP_ATOMIC
);
191 memcpy(mc
->mc_addr
, mac
, OSA_ADDR_LEN
);
192 mc
->mc_addrlen
= OSA_ADDR_LEN
;
196 rc
= qeth_l2_send_setdelmac(card
, mac
, IPA_CMD_SETVMAC
,
199 rc
= qeth_l2_send_setgroupmac(card
, mac
);
203 list_add_tail(&mc
->list
, &card
->mc_list
);
208 static void qeth_l2_del_all_mc(struct qeth_card
*card
, int del
)
210 struct qeth_mc_mac
*mc
, *tmp
;
212 spin_lock_bh(&card
->mclock
);
213 list_for_each_entry_safe(mc
, tmp
, &card
->mc_list
, list
) {
216 qeth_l2_send_setdelmac(card
, mc
->mc_addr
,
217 IPA_CMD_DELVMAC
, NULL
);
219 qeth_l2_send_delgroupmac(card
, mc
->mc_addr
);
224 spin_unlock_bh(&card
->mclock
);
227 static inline int qeth_l2_get_cast_type(struct qeth_card
*card
,
230 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
232 if (is_broadcast_ether_addr(skb
->data
))
233 return RTN_BROADCAST
;
234 if (is_multicast_ether_addr(skb
->data
))
235 return RTN_MULTICAST
;
239 static void qeth_l2_fill_header(struct qeth_card
*card
, struct qeth_hdr
*hdr
,
240 struct sk_buff
*skb
, int ipv
, int cast_type
)
242 struct vlan_ethhdr
*veth
= (struct vlan_ethhdr
*)skb_mac_header(skb
);
244 memset(hdr
, 0, sizeof(struct qeth_hdr
));
245 hdr
->hdr
.l2
.id
= QETH_HEADER_TYPE_LAYER2
;
247 /* set byte byte 3 to casting flags */
248 if (cast_type
== RTN_MULTICAST
)
249 hdr
->hdr
.l2
.flags
[2] |= QETH_LAYER2_FLAG_MULTICAST
;
250 else if (cast_type
== RTN_BROADCAST
)
251 hdr
->hdr
.l2
.flags
[2] |= QETH_LAYER2_FLAG_BROADCAST
;
253 hdr
->hdr
.l2
.flags
[2] |= QETH_LAYER2_FLAG_UNICAST
;
255 hdr
->hdr
.l2
.pkt_length
= skb
->len
-QETH_HEADER_SIZE
;
256 /* VSWITCH relies on the VLAN
257 * information to be present in
259 if (veth
->h_vlan_proto
== __constant_htons(ETH_P_8021Q
)) {
260 hdr
->hdr
.l2
.flags
[2] |= QETH_LAYER2_FLAG_VLAN
;
261 hdr
->hdr
.l2
.vlan_id
= ntohs(veth
->h_vlan_TCI
);
265 static int qeth_l2_send_setdelvlan_cb(struct qeth_card
*card
,
266 struct qeth_reply
*reply
, unsigned long data
)
268 struct qeth_ipa_cmd
*cmd
;
270 QETH_CARD_TEXT(card
, 2, "L2sdvcb");
271 cmd
= (struct qeth_ipa_cmd
*) data
;
272 if (cmd
->hdr
.return_code
) {
273 QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. "
274 "Continuing\n", cmd
->data
.setdelvlan
.vlan_id
,
275 QETH_CARD_IFNAME(card
), cmd
->hdr
.return_code
);
276 QETH_CARD_TEXT_(card
, 2, "L2VL%4x", cmd
->hdr
.command
);
277 QETH_CARD_TEXT_(card
, 2, "err%d", cmd
->hdr
.return_code
);
282 static int qeth_l2_send_setdelvlan(struct qeth_card
*card
, __u16 i
,
283 enum qeth_ipa_cmds ipacmd
)
285 struct qeth_ipa_cmd
*cmd
;
286 struct qeth_cmd_buffer
*iob
;
288 QETH_CARD_TEXT_(card
, 4, "L2sdv%x", ipacmd
);
289 iob
= qeth_get_ipacmd_buffer(card
, ipacmd
, QETH_PROT_IPV4
);
290 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
291 cmd
->data
.setdelvlan
.vlan_id
= i
;
292 return qeth_send_ipa_cmd(card
, iob
,
293 qeth_l2_send_setdelvlan_cb
, NULL
);
296 static void qeth_l2_process_vlans(struct qeth_card
*card
)
298 struct qeth_vlan_vid
*id
;
299 QETH_CARD_TEXT(card
, 3, "L2prcvln");
300 spin_lock_bh(&card
->vlanlock
);
301 list_for_each_entry(id
, &card
->vid_list
, list
) {
302 qeth_l2_send_setdelvlan(card
, id
->vid
, IPA_CMD_SETVLAN
);
304 spin_unlock_bh(&card
->vlanlock
);
307 static int qeth_l2_vlan_rx_add_vid(struct net_device
*dev
, unsigned short vid
)
309 struct qeth_card
*card
= dev
->ml_priv
;
310 struct qeth_vlan_vid
*id
;
312 QETH_CARD_TEXT_(card
, 4, "aid:%d", vid
);
315 if (card
->info
.type
== QETH_CARD_TYPE_OSM
) {
316 QETH_CARD_TEXT(card
, 3, "aidOSM");
319 if (qeth_wait_for_threads(card
, QETH_RECOVER_THREAD
)) {
320 QETH_CARD_TEXT(card
, 3, "aidREC");
323 id
= kmalloc(sizeof(struct qeth_vlan_vid
), GFP_ATOMIC
);
326 qeth_l2_send_setdelvlan(card
, vid
, IPA_CMD_SETVLAN
);
327 spin_lock_bh(&card
->vlanlock
);
328 list_add_tail(&id
->list
, &card
->vid_list
);
329 spin_unlock_bh(&card
->vlanlock
);
336 static int qeth_l2_vlan_rx_kill_vid(struct net_device
*dev
, unsigned short vid
)
338 struct qeth_vlan_vid
*id
, *tmpid
= NULL
;
339 struct qeth_card
*card
= dev
->ml_priv
;
341 QETH_CARD_TEXT_(card
, 4, "kid:%d", vid
);
342 if (card
->info
.type
== QETH_CARD_TYPE_OSM
) {
343 QETH_CARD_TEXT(card
, 3, "kidOSM");
346 if (qeth_wait_for_threads(card
, QETH_RECOVER_THREAD
)) {
347 QETH_CARD_TEXT(card
, 3, "kidREC");
350 spin_lock_bh(&card
->vlanlock
);
351 list_for_each_entry(id
, &card
->vid_list
, list
) {
352 if (id
->vid
== vid
) {
358 spin_unlock_bh(&card
->vlanlock
);
360 qeth_l2_send_setdelvlan(card
, vid
, IPA_CMD_DELVLAN
);
363 qeth_l2_set_multicast_list(card
->dev
);
367 static int qeth_l2_stop_card(struct qeth_card
*card
, int recovery_mode
)
371 QETH_DBF_TEXT(SETUP
, 2, "stopcard");
372 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
374 qeth_set_allowed_threads(card
, 0, 1);
375 if (card
->read
.state
== CH_STATE_UP
&&
376 card
->write
.state
== CH_STATE_UP
&&
377 (card
->state
== CARD_STATE_UP
)) {
379 card
->info
.type
!= QETH_CARD_TYPE_OSN
) {
380 qeth_l2_stop(card
->dev
);
383 dev_close(card
->dev
);
386 card
->info
.mac_bits
&= ~QETH_LAYER2_MAC_REGISTERED
;
387 card
->state
= CARD_STATE_SOFTSETUP
;
389 if (card
->state
== CARD_STATE_SOFTSETUP
) {
390 qeth_l2_del_all_mc(card
, 0);
391 qeth_clear_ipacmd_list(card
);
392 card
->state
= CARD_STATE_HARDSETUP
;
394 if (card
->state
== CARD_STATE_HARDSETUP
) {
395 qeth_qdio_clear_card(card
, 0);
396 qeth_clear_qdio_buffers(card
);
397 qeth_clear_working_pool_list(card
);
398 card
->state
= CARD_STATE_DOWN
;
400 if (card
->state
== CARD_STATE_DOWN
) {
401 qeth_clear_cmd_buffers(&card
->read
);
402 qeth_clear_cmd_buffers(&card
->write
);
407 static int qeth_l2_process_inbound_buffer(struct qeth_card
*card
,
408 int budget
, int *done
)
412 struct qeth_hdr
*hdr
;
418 skb
= qeth_core_get_next_skb(card
,
419 &card
->qdio
.in_q
->bufs
[card
->rx
.b_index
],
420 &card
->rx
.b_element
, &card
->rx
.e_offset
, &hdr
);
425 skb
->dev
= card
->dev
;
426 switch (hdr
->hdr
.l2
.id
) {
427 case QETH_HEADER_TYPE_LAYER2
:
428 skb
->pkt_type
= PACKET_HOST
;
429 skb
->protocol
= eth_type_trans(skb
, skb
->dev
);
430 skb
->ip_summed
= CHECKSUM_NONE
;
431 if (skb
->protocol
== htons(ETH_P_802_2
))
432 *((__u32
*)skb
->cb
) = ++card
->seqno
.pkt_seqno
;
434 netif_receive_skb(skb
);
436 case QETH_HEADER_TYPE_OSN
:
437 if (card
->info
.type
== QETH_CARD_TYPE_OSN
) {
438 skb_push(skb
, sizeof(struct qeth_hdr
));
439 skb_copy_to_linear_data(skb
, hdr
,
440 sizeof(struct qeth_hdr
));
442 card
->osn_info
.data_cb(skb
);
447 dev_kfree_skb_any(skb
);
448 QETH_CARD_TEXT(card
, 3, "inbunkno");
449 QETH_DBF_HEX(CTRL
, 3, hdr
, QETH_DBF_CTRL_LEN
);
454 card
->stats
.rx_packets
++;
455 card
->stats
.rx_bytes
+= len
;
460 static int qeth_l2_poll(struct napi_struct
*napi
, int budget
)
462 struct qeth_card
*card
= container_of(napi
, struct qeth_card
, napi
);
464 struct qeth_qdio_buffer
*buffer
;
466 int new_budget
= budget
;
468 if (card
->options
.performance_stats
) {
469 card
->perf_stats
.inbound_cnt
++;
470 card
->perf_stats
.inbound_start_time
= qeth_get_micros();
474 if (!card
->rx
.b_count
) {
475 card
->rx
.qdio_err
= 0;
476 card
->rx
.b_count
= qdio_get_next_buffers(
477 card
->data
.ccwdev
, 0, &card
->rx
.b_index
,
479 if (card
->rx
.b_count
<= 0) {
480 card
->rx
.b_count
= 0;
484 &card
->qdio
.in_q
->bufs
[card
->rx
.b_index
]
486 card
->rx
.e_offset
= 0;
489 while (card
->rx
.b_count
) {
490 buffer
= &card
->qdio
.in_q
->bufs
[card
->rx
.b_index
];
491 if (!(card
->rx
.qdio_err
&&
492 qeth_check_qdio_errors(card
, buffer
->buffer
,
493 card
->rx
.qdio_err
, "qinerr")))
494 work_done
+= qeth_l2_process_inbound_buffer(
495 card
, new_budget
, &done
);
500 if (card
->options
.performance_stats
)
501 card
->perf_stats
.bufs_rec
++;
502 qeth_put_buffer_pool_entry(card
,
504 qeth_queue_input_buffer(card
, card
->rx
.b_index
);
506 if (card
->rx
.b_count
) {
508 (card
->rx
.b_index
+ 1) %
509 QDIO_MAX_BUFFERS_PER_Q
;
512 ->bufs
[card
->rx
.b_index
]
514 card
->rx
.e_offset
= 0;
518 if (work_done
>= budget
)
521 new_budget
= budget
- work_done
;
526 if (qdio_start_irq(card
->data
.ccwdev
, 0))
527 napi_schedule(&card
->napi
);
529 if (card
->options
.performance_stats
)
530 card
->perf_stats
.inbound_time
+= qeth_get_micros() -
531 card
->perf_stats
.inbound_start_time
;
535 static int qeth_l2_send_setdelmac(struct qeth_card
*card
, __u8
*mac
,
536 enum qeth_ipa_cmds ipacmd
,
537 int (*reply_cb
) (struct qeth_card
*,
541 struct qeth_ipa_cmd
*cmd
;
542 struct qeth_cmd_buffer
*iob
;
544 QETH_CARD_TEXT(card
, 2, "L2sdmac");
545 iob
= qeth_get_ipacmd_buffer(card
, ipacmd
, QETH_PROT_IPV4
);
546 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
547 cmd
->data
.setdelmac
.mac_length
= OSA_ADDR_LEN
;
548 memcpy(&cmd
->data
.setdelmac
.mac
, mac
, OSA_ADDR_LEN
);
549 return qeth_send_ipa_cmd(card
, iob
, reply_cb
, NULL
);
552 static int qeth_l2_send_setmac_cb(struct qeth_card
*card
,
553 struct qeth_reply
*reply
,
556 struct qeth_ipa_cmd
*cmd
;
558 QETH_CARD_TEXT(card
, 2, "L2Smaccb");
559 cmd
= (struct qeth_ipa_cmd
*) data
;
560 if (cmd
->hdr
.return_code
) {
561 QETH_CARD_TEXT_(card
, 2, "L2er%x", cmd
->hdr
.return_code
);
562 card
->info
.mac_bits
&= ~QETH_LAYER2_MAC_REGISTERED
;
563 switch (cmd
->hdr
.return_code
) {
564 case IPA_RC_L2_DUP_MAC
:
565 case IPA_RC_L2_DUP_LAYER3_MAC
:
566 dev_warn(&card
->gdev
->dev
,
567 "MAC address %pM already exists\n",
568 cmd
->data
.setdelmac
.mac
);
570 case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP
:
571 case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP
:
572 dev_warn(&card
->gdev
->dev
,
573 "MAC address %pM is not authorized\n",
574 cmd
->data
.setdelmac
.mac
);
580 card
->info
.mac_bits
|= QETH_LAYER2_MAC_REGISTERED
;
581 memcpy(card
->dev
->dev_addr
, cmd
->data
.setdelmac
.mac
,
583 dev_info(&card
->gdev
->dev
,
584 "MAC address %pM successfully registered on device %s\n",
585 card
->dev
->dev_addr
, card
->dev
->name
);
590 static int qeth_l2_send_setmac(struct qeth_card
*card
, __u8
*mac
)
592 QETH_CARD_TEXT(card
, 2, "L2Setmac");
593 return qeth_l2_send_setdelmac(card
, mac
, IPA_CMD_SETVMAC
,
594 qeth_l2_send_setmac_cb
);
597 static int qeth_l2_send_delmac_cb(struct qeth_card
*card
,
598 struct qeth_reply
*reply
,
601 struct qeth_ipa_cmd
*cmd
;
603 QETH_CARD_TEXT(card
, 2, "L2Dmaccb");
604 cmd
= (struct qeth_ipa_cmd
*) data
;
605 if (cmd
->hdr
.return_code
) {
606 QETH_CARD_TEXT_(card
, 2, "err%d", cmd
->hdr
.return_code
);
609 card
->info
.mac_bits
&= ~QETH_LAYER2_MAC_REGISTERED
;
614 static int qeth_l2_send_delmac(struct qeth_card
*card
, __u8
*mac
)
616 QETH_CARD_TEXT(card
, 2, "L2Delmac");
617 if (!(card
->info
.mac_bits
& QETH_LAYER2_MAC_REGISTERED
))
619 return qeth_l2_send_setdelmac(card
, mac
, IPA_CMD_DELVMAC
,
620 qeth_l2_send_delmac_cb
);
623 static int qeth_l2_request_initial_mac(struct qeth_card
*card
)
626 char vendor_pre
[] = {0x02, 0x00, 0x00};
628 QETH_DBF_TEXT(SETUP
, 2, "doL2init");
629 QETH_DBF_TEXT_(SETUP
, 2, "doL2%s", CARD_BUS_ID(card
));
631 rc
= qeth_query_setadapterparms(card
);
633 QETH_DBF_MESSAGE(2, "could not query adapter parameters on "
634 "device %s: x%x\n", CARD_BUS_ID(card
), rc
);
637 if (card
->info
.type
== QETH_CARD_TYPE_IQD
||
638 card
->info
.type
== QETH_CARD_TYPE_OSM
||
639 card
->info
.type
== QETH_CARD_TYPE_OSX
||
640 card
->info
.guestlan
) {
641 rc
= qeth_setadpparms_change_macaddr(card
);
643 QETH_DBF_MESSAGE(2, "couldn't get MAC address on "
644 "device %s: x%x\n", CARD_BUS_ID(card
), rc
);
645 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
648 QETH_DBF_HEX(SETUP
, 2, card
->dev
->dev_addr
, OSA_ADDR_LEN
);
650 random_ether_addr(card
->dev
->dev_addr
);
651 memcpy(card
->dev
->dev_addr
, vendor_pre
, 3);
656 static int qeth_l2_set_mac_address(struct net_device
*dev
, void *p
)
658 struct sockaddr
*addr
= p
;
659 struct qeth_card
*card
= dev
->ml_priv
;
662 QETH_CARD_TEXT(card
, 3, "setmac");
664 if (qeth_l2_verify_dev(dev
) != QETH_REAL_CARD
) {
665 QETH_CARD_TEXT(card
, 3, "setmcINV");
669 if (card
->info
.type
== QETH_CARD_TYPE_OSN
||
670 card
->info
.type
== QETH_CARD_TYPE_OSM
||
671 card
->info
.type
== QETH_CARD_TYPE_OSX
) {
672 QETH_CARD_TEXT(card
, 3, "setmcTYP");
675 QETH_CARD_HEX(card
, 3, addr
->sa_data
, OSA_ADDR_LEN
);
676 if (qeth_wait_for_threads(card
, QETH_RECOVER_THREAD
)) {
677 QETH_CARD_TEXT(card
, 3, "setmcREC");
680 rc
= qeth_l2_send_delmac(card
, &card
->dev
->dev_addr
[0]);
682 rc
= qeth_l2_send_setmac(card
, addr
->sa_data
);
683 return rc
? -EINVAL
: 0;
686 static void qeth_l2_set_multicast_list(struct net_device
*dev
)
688 struct qeth_card
*card
= dev
->ml_priv
;
689 struct netdev_hw_addr
*ha
;
691 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
694 QETH_CARD_TEXT(card
, 3, "setmulti");
695 if (qeth_threads_running(card
, QETH_RECOVER_THREAD
) &&
696 (card
->state
!= CARD_STATE_UP
))
698 qeth_l2_del_all_mc(card
, 1);
699 spin_lock_bh(&card
->mclock
);
700 netdev_for_each_mc_addr(ha
, dev
)
701 qeth_l2_add_mc(card
, ha
->addr
, 0);
703 netdev_for_each_uc_addr(ha
, dev
)
704 qeth_l2_add_mc(card
, ha
->addr
, 1);
706 spin_unlock_bh(&card
->mclock
);
707 if (!qeth_adp_supported(card
, IPA_SETADP_SET_PROMISC_MODE
))
709 qeth_setadp_promisc_mode(card
);
712 static int qeth_l2_hard_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
715 struct qeth_hdr
*hdr
= NULL
;
717 struct qeth_card
*card
= dev
->ml_priv
;
718 struct sk_buff
*new_skb
= skb
;
719 int ipv
= qeth_get_ip_version(skb
);
720 int cast_type
= qeth_l2_get_cast_type(card
, skb
);
721 struct qeth_qdio_out_q
*queue
= card
->qdio
.out_qs
722 [qeth_get_priority_queue(card
, skb
, ipv
, cast_type
)];
723 int tx_bytes
= skb
->len
;
724 int data_offset
= -1;
725 int elements_needed
= 0;
728 if ((card
->state
!= CARD_STATE_UP
) || !card
->lan_online
) {
729 card
->stats
.tx_carrier_errors
++;
733 if ((card
->info
.type
== QETH_CARD_TYPE_OSN
) &&
734 (skb
->protocol
== htons(ETH_P_IPV6
)))
737 if (card
->options
.performance_stats
) {
738 card
->perf_stats
.outbound_cnt
++;
739 card
->perf_stats
.outbound_start_time
= qeth_get_micros();
741 netif_stop_queue(dev
);
743 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
744 hdr
= (struct qeth_hdr
*)skb
->data
;
746 if (card
->info
.type
== QETH_CARD_TYPE_IQD
) {
748 data_offset
= ETH_HLEN
;
750 hdr
= kmem_cache_alloc(qeth_core_header_cache
,
755 skb_reset_mac_header(new_skb
);
756 qeth_l2_fill_header(card
, hdr
, new_skb
, ipv
, cast_type
);
757 hdr
->hdr
.l2
.pkt_length
= new_skb
->len
;
758 memcpy(((char *)hdr
) + sizeof(struct qeth_hdr
),
759 skb_mac_header(new_skb
), ETH_HLEN
);
761 /* create a clone with writeable headroom */
762 new_skb
= skb_realloc_headroom(skb
,
763 sizeof(struct qeth_hdr
));
766 hdr
= (struct qeth_hdr
*)skb_push(new_skb
,
767 sizeof(struct qeth_hdr
));
768 skb_set_mac_header(new_skb
, sizeof(struct qeth_hdr
));
769 qeth_l2_fill_header(card
, hdr
, new_skb
, ipv
, cast_type
);
773 elements
= qeth_get_elements_no(card
, (void *)hdr
, new_skb
,
776 if (data_offset
>= 0)
777 kmem_cache_free(qeth_core_header_cache
, hdr
);
781 if (card
->info
.type
!= QETH_CARD_TYPE_IQD
) {
782 if (qeth_hdr_chk_and_bounce(new_skb
,
783 sizeof(struct qeth_hdr_layer2
)))
785 rc
= qeth_do_send_packet(card
, queue
, new_skb
, hdr
,
788 rc
= qeth_do_send_packet_fast(card
, queue
, new_skb
, hdr
,
789 elements
, data_offset
, hd_len
);
791 card
->stats
.tx_packets
++;
792 card
->stats
.tx_bytes
+= tx_bytes
;
794 dev_kfree_skb_any(skb
);
797 if (data_offset
>= 0)
798 kmem_cache_free(qeth_core_header_cache
, hdr
);
802 dev_kfree_skb_any(new_skb
);
803 return NETDEV_TX_BUSY
;
808 netif_wake_queue(dev
);
809 if (card
->options
.performance_stats
)
810 card
->perf_stats
.outbound_time
+= qeth_get_micros() -
811 card
->perf_stats
.outbound_start_time
;
815 card
->stats
.tx_dropped
++;
816 card
->stats
.tx_errors
++;
817 if ((new_skb
!= skb
) && new_skb
)
818 dev_kfree_skb_any(new_skb
);
819 dev_kfree_skb_any(skb
);
820 netif_wake_queue(dev
);
824 static int __qeth_l2_open(struct net_device
*dev
)
826 struct qeth_card
*card
= dev
->ml_priv
;
829 QETH_CARD_TEXT(card
, 4, "qethopen");
830 if (card
->state
== CARD_STATE_UP
)
832 if (card
->state
!= CARD_STATE_SOFTSETUP
)
835 if ((card
->info
.type
!= QETH_CARD_TYPE_OSN
) &&
836 (!(card
->info
.mac_bits
& QETH_LAYER2_MAC_REGISTERED
))) {
837 QETH_CARD_TEXT(card
, 4, "nomacadr");
840 card
->data
.state
= CH_STATE_UP
;
841 card
->state
= CARD_STATE_UP
;
842 netif_start_queue(dev
);
844 if (qdio_stop_irq(card
->data
.ccwdev
, 0) >= 0) {
845 napi_enable(&card
->napi
);
846 napi_schedule(&card
->napi
);
852 static int qeth_l2_open(struct net_device
*dev
)
854 struct qeth_card
*card
= dev
->ml_priv
;
856 QETH_CARD_TEXT(card
, 5, "qethope_");
857 if (qeth_wait_for_threads(card
, QETH_RECOVER_THREAD
)) {
858 QETH_CARD_TEXT(card
, 3, "openREC");
861 return __qeth_l2_open(dev
);
864 static int qeth_l2_stop(struct net_device
*dev
)
866 struct qeth_card
*card
= dev
->ml_priv
;
868 QETH_CARD_TEXT(card
, 4, "qethstop");
869 netif_tx_disable(dev
);
870 if (card
->state
== CARD_STATE_UP
) {
871 card
->state
= CARD_STATE_SOFTSETUP
;
872 napi_disable(&card
->napi
);
877 static int qeth_l2_probe_device(struct ccwgroup_device
*gdev
)
879 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
881 INIT_LIST_HEAD(&card
->vid_list
);
882 INIT_LIST_HEAD(&card
->mc_list
);
883 card
->options
.layer2
= 1;
884 card
->info
.hwtrap
= 0;
885 card
->discipline
.start_poll
= qeth_qdio_start_poll
;
886 card
->discipline
.input_handler
= (qdio_handler_t
*)
887 qeth_qdio_input_handler
;
888 card
->discipline
.output_handler
= (qdio_handler_t
*)
889 qeth_qdio_output_handler
;
890 card
->discipline
.recover
= qeth_l2_recover
;
894 static void qeth_l2_remove_device(struct ccwgroup_device
*cgdev
)
896 struct qeth_card
*card
= dev_get_drvdata(&cgdev
->dev
);
898 qeth_set_allowed_threads(card
, 0, 1);
899 wait_event(card
->wait_q
, qeth_threads_running(card
, 0xffffffff) == 0);
901 if (cgdev
->state
== CCWGROUP_ONLINE
)
902 qeth_l2_set_offline(cgdev
);
905 unregister_netdev(card
->dev
);
911 static const struct ethtool_ops qeth_l2_ethtool_ops
= {
912 .get_link
= ethtool_op_get_link
,
913 .get_strings
= qeth_core_get_strings
,
914 .get_ethtool_stats
= qeth_core_get_ethtool_stats
,
915 .get_sset_count
= qeth_core_get_sset_count
,
916 .get_drvinfo
= qeth_core_get_drvinfo
,
917 .get_settings
= qeth_core_ethtool_get_settings
,
920 static const struct ethtool_ops qeth_l2_osn_ops
= {
921 .get_strings
= qeth_core_get_strings
,
922 .get_ethtool_stats
= qeth_core_get_ethtool_stats
,
923 .get_sset_count
= qeth_core_get_sset_count
,
924 .get_drvinfo
= qeth_core_get_drvinfo
,
927 static const struct net_device_ops qeth_l2_netdev_ops
= {
928 .ndo_open
= qeth_l2_open
,
929 .ndo_stop
= qeth_l2_stop
,
930 .ndo_get_stats
= qeth_get_stats
,
931 .ndo_start_xmit
= qeth_l2_hard_start_xmit
,
932 .ndo_validate_addr
= eth_validate_addr
,
933 .ndo_set_rx_mode
= qeth_l2_set_multicast_list
,
934 .ndo_do_ioctl
= qeth_l2_do_ioctl
,
935 .ndo_set_mac_address
= qeth_l2_set_mac_address
,
936 .ndo_change_mtu
= qeth_change_mtu
,
937 .ndo_vlan_rx_add_vid
= qeth_l2_vlan_rx_add_vid
,
938 .ndo_vlan_rx_kill_vid
= qeth_l2_vlan_rx_kill_vid
,
939 .ndo_tx_timeout
= qeth_tx_timeout
,
942 static int qeth_l2_setup_netdev(struct qeth_card
*card
)
944 switch (card
->info
.type
) {
945 case QETH_CARD_TYPE_IQD
:
946 card
->dev
= alloc_netdev(0, "hsi%d", ether_setup
);
948 case QETH_CARD_TYPE_OSN
:
949 card
->dev
= alloc_netdev(0, "osn%d", ether_setup
);
950 card
->dev
->flags
|= IFF_NOARP
;
953 card
->dev
= alloc_etherdev(0);
959 card
->dev
->ml_priv
= card
;
960 card
->dev
->watchdog_timeo
= QETH_TX_TIMEOUT
;
961 card
->dev
->mtu
= card
->info
.initial_mtu
;
962 card
->dev
->netdev_ops
= &qeth_l2_netdev_ops
;
963 if (card
->info
.type
!= QETH_CARD_TYPE_OSN
)
964 SET_ETHTOOL_OPS(card
->dev
, &qeth_l2_ethtool_ops
);
966 SET_ETHTOOL_OPS(card
->dev
, &qeth_l2_osn_ops
);
967 card
->dev
->features
|= NETIF_F_HW_VLAN_FILTER
;
968 card
->info
.broadcast_capable
= 1;
969 qeth_l2_request_initial_mac(card
);
970 SET_NETDEV_DEV(card
->dev
, &card
->gdev
->dev
);
971 netif_napi_add(card
->dev
, &card
->napi
, qeth_l2_poll
, QETH_NAPI_WEIGHT
);
972 return register_netdev(card
->dev
);
975 static int __qeth_l2_set_online(struct ccwgroup_device
*gdev
, int recovery_mode
)
977 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
979 enum qeth_card_states recover_flag
;
982 mutex_lock(&card
->discipline_mutex
);
983 mutex_lock(&card
->conf_mutex
);
984 QETH_DBF_TEXT(SETUP
, 2, "setonlin");
985 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
987 recover_flag
= card
->state
;
988 rc
= qeth_core_hardsetup_card(card
);
990 QETH_DBF_TEXT_(SETUP
, 2, "2err%d", rc
);
995 if (!card
->dev
&& qeth_l2_setup_netdev(card
)) {
1000 if (card
->info
.type
!= QETH_CARD_TYPE_OSN
)
1001 qeth_l2_send_setmac(card
, &card
->dev
->dev_addr
[0]);
1003 if (qeth_is_diagass_supported(card
, QETH_DIAGS_CMD_TRAP
)) {
1004 if (card
->info
.hwtrap
&&
1005 qeth_hw_trap(card
, QETH_DIAGS_TRAP_ARM
))
1006 card
->info
.hwtrap
= 0;
1008 card
->info
.hwtrap
= 0;
1010 card
->state
= CARD_STATE_HARDSETUP
;
1011 memset(&card
->rx
, 0, sizeof(struct qeth_rx
));
1012 qeth_print_status_message(card
);
1015 QETH_DBF_TEXT(SETUP
, 2, "softsetp");
1017 rc
= qeth_send_startlan(card
);
1019 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
1021 dev_warn(&card
->gdev
->dev
,
1022 "The LAN is offline\n");
1023 card
->lan_online
= 0;
1029 card
->lan_online
= 1;
1032 if ((card
->info
.type
== QETH_CARD_TYPE_OSD
) ||
1033 (card
->info
.type
== QETH_CARD_TYPE_OSX
))
1034 /* configure isolation level */
1035 qeth_set_access_ctrl_online(card
);
1037 if (card
->info
.type
!= QETH_CARD_TYPE_OSN
&&
1038 card
->info
.type
!= QETH_CARD_TYPE_OSM
)
1039 qeth_l2_process_vlans(card
);
1041 netif_tx_disable(card
->dev
);
1043 rc
= qeth_init_qdio_queues(card
);
1045 QETH_DBF_TEXT_(SETUP
, 2, "6err%d", rc
);
1049 card
->state
= CARD_STATE_SOFTSETUP
;
1050 if (card
->lan_online
)
1051 netif_carrier_on(card
->dev
);
1053 netif_carrier_off(card
->dev
);
1055 qeth_set_allowed_threads(card
, 0xffffffff, 0);
1056 if (recover_flag
== CARD_STATE_RECOVER
) {
1057 if (recovery_mode
&&
1058 card
->info
.type
!= QETH_CARD_TYPE_OSN
) {
1059 __qeth_l2_open(card
->dev
);
1062 dev_open(card
->dev
);
1065 /* this also sets saved unicast addresses */
1066 qeth_l2_set_multicast_list(card
->dev
);
1068 /* let user_space know that device is online */
1069 kobject_uevent(&gdev
->dev
.kobj
, KOBJ_CHANGE
);
1070 mutex_unlock(&card
->conf_mutex
);
1071 mutex_unlock(&card
->discipline_mutex
);
1075 qeth_l2_stop_card(card
, 0);
1076 ccw_device_set_offline(CARD_DDEV(card
));
1077 ccw_device_set_offline(CARD_WDEV(card
));
1078 ccw_device_set_offline(CARD_RDEV(card
));
1079 if (recover_flag
== CARD_STATE_RECOVER
)
1080 card
->state
= CARD_STATE_RECOVER
;
1082 card
->state
= CARD_STATE_DOWN
;
1083 mutex_unlock(&card
->conf_mutex
);
1084 mutex_unlock(&card
->discipline_mutex
);
1088 static int qeth_l2_set_online(struct ccwgroup_device
*gdev
)
1090 return __qeth_l2_set_online(gdev
, 0);
1093 static int __qeth_l2_set_offline(struct ccwgroup_device
*cgdev
,
1096 struct qeth_card
*card
= dev_get_drvdata(&cgdev
->dev
);
1097 int rc
= 0, rc2
= 0, rc3
= 0;
1098 enum qeth_card_states recover_flag
;
1100 mutex_lock(&card
->discipline_mutex
);
1101 mutex_lock(&card
->conf_mutex
);
1102 QETH_DBF_TEXT(SETUP
, 3, "setoffl");
1103 QETH_DBF_HEX(SETUP
, 3, &card
, sizeof(void *));
1105 if (card
->dev
&& netif_carrier_ok(card
->dev
))
1106 netif_carrier_off(card
->dev
);
1107 recover_flag
= card
->state
;
1108 if ((!recovery_mode
&& card
->info
.hwtrap
) || card
->info
.hwtrap
== 2) {
1109 qeth_hw_trap(card
, QETH_DIAGS_TRAP_DISARM
);
1110 card
->info
.hwtrap
= 1;
1112 qeth_l2_stop_card(card
, recovery_mode
);
1113 rc
= ccw_device_set_offline(CARD_DDEV(card
));
1114 rc2
= ccw_device_set_offline(CARD_WDEV(card
));
1115 rc3
= ccw_device_set_offline(CARD_RDEV(card
));
1117 rc
= (rc2
) ? rc2
: rc3
;
1119 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
1120 if (recover_flag
== CARD_STATE_UP
)
1121 card
->state
= CARD_STATE_RECOVER
;
1122 /* let user_space know that device is offline */
1123 kobject_uevent(&cgdev
->dev
.kobj
, KOBJ_CHANGE
);
1124 mutex_unlock(&card
->conf_mutex
);
1125 mutex_unlock(&card
->discipline_mutex
);
1129 static int qeth_l2_set_offline(struct ccwgroup_device
*cgdev
)
1131 return __qeth_l2_set_offline(cgdev
, 0);
1134 static int qeth_l2_recover(void *ptr
)
1136 struct qeth_card
*card
;
1139 card
= (struct qeth_card
*) ptr
;
1140 QETH_CARD_TEXT(card
, 2, "recover1");
1141 if (!qeth_do_run_thread(card
, QETH_RECOVER_THREAD
))
1143 QETH_CARD_TEXT(card
, 2, "recover2");
1144 dev_warn(&card
->gdev
->dev
,
1145 "A recovery process has been started for the device\n");
1146 __qeth_l2_set_offline(card
->gdev
, 1);
1147 rc
= __qeth_l2_set_online(card
->gdev
, 1);
1149 dev_info(&card
->gdev
->dev
,
1150 "Device successfully recovered!\n");
1153 dev_close(card
->dev
);
1155 dev_warn(&card
->gdev
->dev
, "The qeth device driver "
1156 "failed to recover an error on the device\n");
1158 qeth_clear_thread_start_bit(card
, QETH_RECOVER_THREAD
);
1159 qeth_clear_thread_running_bit(card
, QETH_RECOVER_THREAD
);
1163 static int __init
qeth_l2_init(void)
1165 pr_info("register layer 2 discipline\n");
1169 static void __exit
qeth_l2_exit(void)
1171 pr_info("unregister layer 2 discipline\n");
1174 static void qeth_l2_shutdown(struct ccwgroup_device
*gdev
)
1176 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
1177 qeth_set_allowed_threads(card
, 0, 1);
1178 if ((gdev
->state
== CCWGROUP_ONLINE
) && card
->info
.hwtrap
)
1179 qeth_hw_trap(card
, QETH_DIAGS_TRAP_DISARM
);
1180 qeth_qdio_clear_card(card
, 0);
1181 qeth_clear_qdio_buffers(card
);
1184 static int qeth_l2_pm_suspend(struct ccwgroup_device
*gdev
)
1186 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
1189 netif_device_detach(card
->dev
);
1190 qeth_set_allowed_threads(card
, 0, 1);
1191 wait_event(card
->wait_q
, qeth_threads_running(card
, 0xffffffff) == 0);
1192 if (gdev
->state
== CCWGROUP_OFFLINE
)
1194 if (card
->state
== CARD_STATE_UP
) {
1195 if (card
->info
.hwtrap
)
1196 qeth_hw_trap(card
, QETH_DIAGS_TRAP_DISARM
);
1197 __qeth_l2_set_offline(card
->gdev
, 1);
1199 __qeth_l2_set_offline(card
->gdev
, 0);
1203 static int qeth_l2_pm_resume(struct ccwgroup_device
*gdev
)
1205 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
1208 if (gdev
->state
== CCWGROUP_OFFLINE
)
1211 if (card
->state
== CARD_STATE_RECOVER
) {
1212 rc
= __qeth_l2_set_online(card
->gdev
, 1);
1215 dev_close(card
->dev
);
1219 rc
= __qeth_l2_set_online(card
->gdev
, 0);
1221 qeth_set_allowed_threads(card
, 0xffffffff, 0);
1223 netif_device_attach(card
->dev
);
1225 dev_warn(&card
->gdev
->dev
, "The qeth device driver "
1226 "failed to recover an error on the device\n");
1230 struct ccwgroup_driver qeth_l2_ccwgroup_driver
= {
1231 .probe
= qeth_l2_probe_device
,
1232 .remove
= qeth_l2_remove_device
,
1233 .set_online
= qeth_l2_set_online
,
1234 .set_offline
= qeth_l2_set_offline
,
1235 .shutdown
= qeth_l2_shutdown
,
1236 .freeze
= qeth_l2_pm_suspend
,
1237 .thaw
= qeth_l2_pm_resume
,
1238 .restore
= qeth_l2_pm_resume
,
1240 EXPORT_SYMBOL_GPL(qeth_l2_ccwgroup_driver
);
1242 static int qeth_osn_send_control_data(struct qeth_card
*card
, int len
,
1243 struct qeth_cmd_buffer
*iob
)
1245 unsigned long flags
;
1248 QETH_CARD_TEXT(card
, 5, "osndctrd");
1250 wait_event(card
->wait_q
,
1251 atomic_cmpxchg(&card
->write
.irq_pending
, 0, 1) == 0);
1252 qeth_prepare_control_data(card
, len
, iob
);
1253 QETH_CARD_TEXT(card
, 6, "osnoirqp");
1254 spin_lock_irqsave(get_ccwdev_lock(card
->write
.ccwdev
), flags
);
1255 rc
= ccw_device_start(card
->write
.ccwdev
, &card
->write
.ccw
,
1256 (addr_t
) iob
, 0, 0);
1257 spin_unlock_irqrestore(get_ccwdev_lock(card
->write
.ccwdev
), flags
);
1259 QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: "
1260 "ccw_device_start rc = %i\n", rc
);
1261 QETH_CARD_TEXT_(card
, 2, " err%d", rc
);
1262 qeth_release_buffer(iob
->channel
, iob
);
1263 atomic_set(&card
->write
.irq_pending
, 0);
1264 wake_up(&card
->wait_q
);
1269 static int qeth_osn_send_ipa_cmd(struct qeth_card
*card
,
1270 struct qeth_cmd_buffer
*iob
, int data_len
)
1274 QETH_CARD_TEXT(card
, 4, "osndipa");
1276 qeth_prepare_ipa_cmd(card
, iob
, QETH_PROT_OSN2
);
1277 s1
= (u16
)(IPA_PDU_HEADER_SIZE
+ data_len
);
1279 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob
->data
), &s1
, 2);
1280 memcpy(QETH_IPA_PDU_LEN_PDU1(iob
->data
), &s2
, 2);
1281 memcpy(QETH_IPA_PDU_LEN_PDU2(iob
->data
), &s2
, 2);
1282 memcpy(QETH_IPA_PDU_LEN_PDU3(iob
->data
), &s2
, 2);
1283 return qeth_osn_send_control_data(card
, s1
, iob
);
1286 int qeth_osn_assist(struct net_device
*dev
, void *data
, int data_len
)
1288 struct qeth_cmd_buffer
*iob
;
1289 struct qeth_card
*card
;
1294 card
= dev
->ml_priv
;
1297 QETH_CARD_TEXT(card
, 2, "osnsdmc");
1298 if ((card
->state
!= CARD_STATE_UP
) &&
1299 (card
->state
!= CARD_STATE_SOFTSETUP
))
1301 iob
= qeth_wait_for_buffer(&card
->write
);
1302 memcpy(iob
->data
+IPA_PDU_HEADER_SIZE
, data
, data_len
);
1303 rc
= qeth_osn_send_ipa_cmd(card
, iob
, data_len
);
1306 EXPORT_SYMBOL(qeth_osn_assist
);
1308 int qeth_osn_register(unsigned char *read_dev_no
, struct net_device
**dev
,
1309 int (*assist_cb
)(struct net_device
*, void *),
1310 int (*data_cb
)(struct sk_buff
*))
1312 struct qeth_card
*card
;
1314 *dev
= qeth_l2_netdev_by_devno(read_dev_no
);
1317 card
= (*dev
)->ml_priv
;
1320 QETH_CARD_TEXT(card
, 2, "osnreg");
1321 if ((assist_cb
== NULL
) || (data_cb
== NULL
))
1323 card
->osn_info
.assist_cb
= assist_cb
;
1324 card
->osn_info
.data_cb
= data_cb
;
1327 EXPORT_SYMBOL(qeth_osn_register
);
1329 void qeth_osn_deregister(struct net_device
*dev
)
1331 struct qeth_card
*card
;
1335 card
= dev
->ml_priv
;
1338 QETH_CARD_TEXT(card
, 2, "osndereg");
1339 card
->osn_info
.assist_cb
= NULL
;
1340 card
->osn_info
.data_cb
= NULL
;
1343 EXPORT_SYMBOL(qeth_osn_deregister
);
1345 module_init(qeth_l2_init
);
1346 module_exit(qeth_l2_exit
);
1347 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
1348 MODULE_DESCRIPTION("qeth layer 2 discipline");
1349 MODULE_LICENSE("GPL");