2 * drivers/s390/net/qeth_l2_main.c
4 * Copyright IBM Corp. 2007
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 #include <linux/module.h>
12 #include <linux/moduleparam.h>
13 #include <linux/string.h>
14 #include <linux/errno.h>
15 #include <linux/kernel.h>
16 #include <linux/etherdevice.h>
17 #include <linux/mii.h>
20 #include <asm/s390_rdev.h>
22 #include "qeth_core.h"
23 #include "qeth_core_offl.h"
25 static int qeth_l2_set_offline(struct ccwgroup_device
*);
26 static int qeth_l2_stop(struct net_device
*);
27 static int qeth_l2_send_delmac(struct qeth_card
*, __u8
*);
28 static int qeth_l2_send_setdelmac(struct qeth_card
*, __u8
*,
30 int (*reply_cb
) (struct qeth_card
*,
33 static void qeth_l2_set_multicast_list(struct net_device
*);
34 static int qeth_l2_recover(void *);
36 static int qeth_l2_do_ioctl(struct net_device
*dev
, struct ifreq
*rq
, int cmd
)
38 struct qeth_card
*card
= dev
->ml_priv
;
39 struct mii_ioctl_data
*mii_data
;
45 if ((card
->state
!= CARD_STATE_UP
) &&
46 (card
->state
!= CARD_STATE_SOFTSETUP
))
49 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
53 case SIOC_QETH_ADP_SET_SNMP_CONTROL
:
54 rc
= qeth_snmp_command(card
, rq
->ifr_ifru
.ifru_data
);
56 case SIOC_QETH_GET_CARD_TYPE
:
57 if ((card
->info
.type
== QETH_CARD_TYPE_OSAE
) &&
63 mii_data
= if_mii(rq
);
67 mii_data
= if_mii(rq
);
68 if (mii_data
->phy_id
!= 0)
71 mii_data
->val_out
= qeth_mdio_read(dev
,
72 mii_data
->phy_id
, mii_data
->reg_num
);
78 QETH_DBF_TEXT_(TRACE
, 2, "ioce%d", rc
);
82 static int qeth_l2_verify_dev(struct net_device
*dev
)
84 struct qeth_card
*card
;
88 read_lock_irqsave(&qeth_core_card_list
.rwlock
, flags
);
89 list_for_each_entry(card
, &qeth_core_card_list
.list
, list
) {
90 if (card
->dev
== dev
) {
95 read_unlock_irqrestore(&qeth_core_card_list
.rwlock
, flags
);
100 static struct net_device
*qeth_l2_netdev_by_devno(unsigned char *read_dev_no
)
102 struct qeth_card
*card
;
103 struct net_device
*ndev
;
106 struct ccw_dev_id read_devid
;
109 memcpy(&temp_dev_no
, read_dev_no
, 2);
110 read_lock_irqsave(&qeth_core_card_list
.rwlock
, flags
);
111 list_for_each_entry(card
, &qeth_core_card_list
.list
, list
) {
112 ccw_device_get_id(CARD_RDEV(card
), &read_devid
);
113 if (read_devid
.devno
== temp_dev_no
) {
118 read_unlock_irqrestore(&qeth_core_card_list
.rwlock
, flags
);
122 static int qeth_l2_send_setgroupmac_cb(struct qeth_card
*card
,
123 struct qeth_reply
*reply
,
126 struct qeth_ipa_cmd
*cmd
;
129 QETH_DBF_TEXT(TRACE
, 2, "L2Sgmacb");
130 cmd
= (struct qeth_ipa_cmd
*) data
;
131 mac
= &cmd
->data
.setdelmac
.mac
[0];
132 /* MAC already registered, needed in couple/uncouple case */
133 if (cmd
->hdr
.return_code
== 0x2005) {
134 QETH_DBF_MESSAGE(2, "Group MAC %02x:%02x:%02x:%02x:%02x:%02x "
135 "already existing on %s \n",
136 mac
[0], mac
[1], mac
[2], mac
[3], mac
[4], mac
[5],
137 QETH_CARD_IFNAME(card
));
138 cmd
->hdr
.return_code
= 0;
140 if (cmd
->hdr
.return_code
)
141 QETH_DBF_MESSAGE(2, "Could not set group MAC "
142 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
143 mac
[0], mac
[1], mac
[2], mac
[3], mac
[4], mac
[5],
144 QETH_CARD_IFNAME(card
), cmd
->hdr
.return_code
);
148 static int qeth_l2_send_setgroupmac(struct qeth_card
*card
, __u8
*mac
)
150 QETH_DBF_TEXT(TRACE
, 2, "L2Sgmac");
151 return qeth_l2_send_setdelmac(card
, mac
, IPA_CMD_SETGMAC
,
152 qeth_l2_send_setgroupmac_cb
);
155 static int qeth_l2_send_delgroupmac_cb(struct qeth_card
*card
,
156 struct qeth_reply
*reply
,
159 struct qeth_ipa_cmd
*cmd
;
162 QETH_DBF_TEXT(TRACE
, 2, "L2Dgmacb");
163 cmd
= (struct qeth_ipa_cmd
*) data
;
164 mac
= &cmd
->data
.setdelmac
.mac
[0];
165 if (cmd
->hdr
.return_code
)
166 QETH_DBF_MESSAGE(2, "Could not delete group MAC "
167 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
168 mac
[0], mac
[1], mac
[2], mac
[3], mac
[4], mac
[5],
169 QETH_CARD_IFNAME(card
), cmd
->hdr
.return_code
);
173 static int qeth_l2_send_delgroupmac(struct qeth_card
*card
, __u8
*mac
)
175 QETH_DBF_TEXT(TRACE
, 2, "L2Dgmac");
176 return qeth_l2_send_setdelmac(card
, mac
, IPA_CMD_DELGMAC
,
177 qeth_l2_send_delgroupmac_cb
);
180 static void qeth_l2_add_mc(struct qeth_card
*card
, __u8
*mac
, int vmac
)
182 struct qeth_mc_mac
*mc
;
185 mc
= kmalloc(sizeof(struct qeth_mc_mac
), GFP_ATOMIC
);
190 memcpy(mc
->mc_addr
, mac
, OSA_ADDR_LEN
);
191 mc
->mc_addrlen
= OSA_ADDR_LEN
;
195 rc
= qeth_l2_send_setdelmac(card
, mac
, IPA_CMD_SETVMAC
,
198 rc
= qeth_l2_send_setgroupmac(card
, mac
);
202 list_add_tail(&mc
->list
, &card
->mc_list
);
207 static void qeth_l2_del_all_mc(struct qeth_card
*card
)
209 struct qeth_mc_mac
*mc
, *tmp
;
211 spin_lock_bh(&card
->mclock
);
212 list_for_each_entry_safe(mc
, tmp
, &card
->mc_list
, list
) {
214 qeth_l2_send_setdelmac(card
, mc
->mc_addr
,
215 IPA_CMD_DELVMAC
, NULL
);
217 qeth_l2_send_delgroupmac(card
, mc
->mc_addr
);
221 spin_unlock_bh(&card
->mclock
);
224 static void qeth_l2_get_packet_type(struct qeth_card
*card
,
225 struct qeth_hdr
*hdr
, struct sk_buff
*skb
)
229 if (!memcmp(skb
->data
+ QETH_HEADER_SIZE
,
230 skb
->dev
->broadcast
, 6)) {
232 hdr
->hdr
.l2
.flags
[2] |= QETH_LAYER2_FLAG_BROADCAST
;
235 hdr_mac
= *((__u16
*)skb
->data
);
237 switch (card
->info
.link_type
) {
238 case QETH_LINK_TYPE_HSTR
:
239 case QETH_LINK_TYPE_LANE_TR
:
240 if ((hdr_mac
== QETH_TR_MAC_NC
) ||
241 (hdr_mac
== QETH_TR_MAC_C
))
242 hdr
->hdr
.l2
.flags
[2] |= QETH_LAYER2_FLAG_MULTICAST
;
244 hdr
->hdr
.l2
.flags
[2] |= QETH_LAYER2_FLAG_UNICAST
;
246 /* eth or so multicast? */
248 if ((hdr_mac
== QETH_ETH_MAC_V4
) ||
249 (hdr_mac
== QETH_ETH_MAC_V6
))
250 hdr
->hdr
.l2
.flags
[2] |= QETH_LAYER2_FLAG_MULTICAST
;
252 hdr
->hdr
.l2
.flags
[2] |= QETH_LAYER2_FLAG_UNICAST
;
256 static void qeth_l2_fill_header(struct qeth_card
*card
, struct qeth_hdr
*hdr
,
257 struct sk_buff
*skb
, int ipv
, int cast_type
)
259 struct vlan_ethhdr
*veth
= (struct vlan_ethhdr
*)skb_mac_header(skb
);
261 memset(hdr
, 0, sizeof(struct qeth_hdr
));
262 hdr
->hdr
.l2
.id
= QETH_HEADER_TYPE_LAYER2
;
264 /* set byte byte 3 to casting flags */
265 if (cast_type
== RTN_MULTICAST
)
266 hdr
->hdr
.l2
.flags
[2] |= QETH_LAYER2_FLAG_MULTICAST
;
267 else if (cast_type
== RTN_BROADCAST
)
268 hdr
->hdr
.l2
.flags
[2] |= QETH_LAYER2_FLAG_BROADCAST
;
270 qeth_l2_get_packet_type(card
, hdr
, skb
);
272 hdr
->hdr
.l2
.pkt_length
= skb
->len
-QETH_HEADER_SIZE
;
273 /* VSWITCH relies on the VLAN
274 * information to be present in
276 if (veth
->h_vlan_proto
== __constant_htons(ETH_P_8021Q
)) {
277 hdr
->hdr
.l2
.flags
[2] |= QETH_LAYER2_FLAG_VLAN
;
278 hdr
->hdr
.l2
.vlan_id
= ntohs(veth
->h_vlan_TCI
);
282 static int qeth_l2_send_setdelvlan_cb(struct qeth_card
*card
,
283 struct qeth_reply
*reply
, unsigned long data
)
285 struct qeth_ipa_cmd
*cmd
;
287 QETH_DBF_TEXT(TRACE
, 2, "L2sdvcb");
288 cmd
= (struct qeth_ipa_cmd
*) data
;
289 if (cmd
->hdr
.return_code
) {
290 QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. "
291 "Continuing\n", cmd
->data
.setdelvlan
.vlan_id
,
292 QETH_CARD_IFNAME(card
), cmd
->hdr
.return_code
);
293 QETH_DBF_TEXT_(TRACE
, 2, "L2VL%4x", cmd
->hdr
.command
);
294 QETH_DBF_TEXT_(TRACE
, 2, "L2%s", CARD_BUS_ID(card
));
295 QETH_DBF_TEXT_(TRACE
, 2, "err%d", cmd
->hdr
.return_code
);
300 static int qeth_l2_send_setdelvlan(struct qeth_card
*card
, __u16 i
,
301 enum qeth_ipa_cmds ipacmd
)
303 struct qeth_ipa_cmd
*cmd
;
304 struct qeth_cmd_buffer
*iob
;
306 QETH_DBF_TEXT_(TRACE
, 4, "L2sdv%x", ipacmd
);
307 iob
= qeth_get_ipacmd_buffer(card
, ipacmd
, QETH_PROT_IPV4
);
308 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
309 cmd
->data
.setdelvlan
.vlan_id
= i
;
310 return qeth_send_ipa_cmd(card
, iob
,
311 qeth_l2_send_setdelvlan_cb
, NULL
);
314 static void qeth_l2_process_vlans(struct qeth_card
*card
, int clear
)
316 struct qeth_vlan_vid
*id
;
317 QETH_DBF_TEXT(TRACE
, 3, "L2prcvln");
318 spin_lock_bh(&card
->vlanlock
);
319 list_for_each_entry(id
, &card
->vid_list
, list
) {
321 qeth_l2_send_setdelvlan(card
, id
->vid
,
324 qeth_l2_send_setdelvlan(card
, id
->vid
,
327 spin_unlock_bh(&card
->vlanlock
);
330 static void qeth_l2_vlan_rx_add_vid(struct net_device
*dev
, unsigned short vid
)
332 struct qeth_card
*card
= dev
->ml_priv
;
333 struct qeth_vlan_vid
*id
;
335 QETH_DBF_TEXT_(TRACE
, 4, "aid:%d", vid
);
336 id
= kmalloc(sizeof(struct qeth_vlan_vid
), GFP_ATOMIC
);
339 qeth_l2_send_setdelvlan(card
, vid
, IPA_CMD_SETVLAN
);
340 spin_lock_bh(&card
->vlanlock
);
341 list_add_tail(&id
->list
, &card
->vid_list
);
342 spin_unlock_bh(&card
->vlanlock
);
346 static void qeth_l2_vlan_rx_kill_vid(struct net_device
*dev
, unsigned short vid
)
348 struct qeth_vlan_vid
*id
, *tmpid
= NULL
;
349 struct qeth_card
*card
= dev
->ml_priv
;
351 QETH_DBF_TEXT_(TRACE
, 4, "kid:%d", vid
);
352 spin_lock_bh(&card
->vlanlock
);
353 list_for_each_entry(id
, &card
->vid_list
, list
) {
354 if (id
->vid
== vid
) {
360 spin_unlock_bh(&card
->vlanlock
);
362 qeth_l2_send_setdelvlan(card
, vid
, IPA_CMD_DELVLAN
);
365 qeth_l2_set_multicast_list(card
->dev
);
368 static int qeth_l2_stop_card(struct qeth_card
*card
, int recovery_mode
)
372 QETH_DBF_TEXT(SETUP
, 2, "stopcard");
373 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
375 qeth_set_allowed_threads(card
, 0, 1);
376 if (card
->read
.state
== CH_STATE_UP
&&
377 card
->write
.state
== CH_STATE_UP
&&
378 (card
->state
== CARD_STATE_UP
)) {
380 card
->info
.type
!= QETH_CARD_TYPE_OSN
) {
381 qeth_l2_stop(card
->dev
);
384 dev_close(card
->dev
);
387 if (!card
->use_hard_stop
) {
388 __u8
*mac
= &card
->dev
->dev_addr
[0];
389 rc
= qeth_l2_send_delmac(card
, mac
);
390 QETH_DBF_TEXT_(SETUP
, 2, "Lerr%d", rc
);
392 card
->state
= CARD_STATE_SOFTSETUP
;
394 if (card
->state
== CARD_STATE_SOFTSETUP
) {
395 qeth_l2_process_vlans(card
, 1);
396 if (!card
->use_hard_stop
)
397 qeth_l2_del_all_mc(card
);
398 qeth_clear_ipacmd_list(card
);
399 card
->state
= CARD_STATE_HARDSETUP
;
401 if (card
->state
== CARD_STATE_HARDSETUP
) {
402 qeth_qdio_clear_card(card
, 0);
403 qeth_clear_qdio_buffers(card
);
404 qeth_clear_working_pool_list(card
);
405 card
->state
= CARD_STATE_DOWN
;
407 if (card
->state
== CARD_STATE_DOWN
) {
408 qeth_clear_cmd_buffers(&card
->read
);
409 qeth_clear_cmd_buffers(&card
->write
);
411 card
->use_hard_stop
= 0;
415 static void qeth_l2_process_inbound_buffer(struct qeth_card
*card
,
416 struct qeth_qdio_buffer
*buf
, int index
)
418 struct qdio_buffer_element
*element
;
420 struct qeth_hdr
*hdr
;
424 /* get first element of current buffer */
425 element
= (struct qdio_buffer_element
*)&buf
->buffer
->element
[0];
427 if (card
->options
.performance_stats
)
428 card
->perf_stats
.bufs_rec
++;
429 while ((skb
= qeth_core_get_next_skb(card
, buf
->buffer
, &element
,
431 skb
->dev
= card
->dev
;
433 if (!(card
->dev
->flags
& IFF_UP
)) {
434 dev_kfree_skb_any(skb
);
438 switch (hdr
->hdr
.l2
.id
) {
439 case QETH_HEADER_TYPE_LAYER2
:
440 skb
->pkt_type
= PACKET_HOST
;
441 skb
->protocol
= eth_type_trans(skb
, skb
->dev
);
442 if (card
->options
.checksum_type
== NO_CHECKSUMMING
)
443 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
445 skb
->ip_summed
= CHECKSUM_NONE
;
446 if (skb
->protocol
== htons(ETH_P_802_2
))
447 *((__u32
*)skb
->cb
) = ++card
->seqno
.pkt_seqno
;
451 case QETH_HEADER_TYPE_OSN
:
452 if (card
->info
.type
== QETH_CARD_TYPE_OSN
) {
453 skb_push(skb
, sizeof(struct qeth_hdr
));
454 skb_copy_to_linear_data(skb
, hdr
,
455 sizeof(struct qeth_hdr
));
457 card
->osn_info
.data_cb(skb
);
462 dev_kfree_skb_any(skb
);
463 QETH_DBF_TEXT(TRACE
, 3, "inbunkno");
464 QETH_DBF_HEX(CTRL
, 3, hdr
, QETH_DBF_CTRL_LEN
);
467 card
->dev
->last_rx
= jiffies
;
468 card
->stats
.rx_packets
++;
469 card
->stats
.rx_bytes
+= len
;
473 static int qeth_l2_send_setdelmac(struct qeth_card
*card
, __u8
*mac
,
474 enum qeth_ipa_cmds ipacmd
,
475 int (*reply_cb
) (struct qeth_card
*,
479 struct qeth_ipa_cmd
*cmd
;
480 struct qeth_cmd_buffer
*iob
;
482 QETH_DBF_TEXT(TRACE
, 2, "L2sdmac");
483 iob
= qeth_get_ipacmd_buffer(card
, ipacmd
, QETH_PROT_IPV4
);
484 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
485 cmd
->data
.setdelmac
.mac_length
= OSA_ADDR_LEN
;
486 memcpy(&cmd
->data
.setdelmac
.mac
, mac
, OSA_ADDR_LEN
);
487 return qeth_send_ipa_cmd(card
, iob
, reply_cb
, NULL
);
490 static int qeth_l2_send_setmac_cb(struct qeth_card
*card
,
491 struct qeth_reply
*reply
,
494 struct qeth_ipa_cmd
*cmd
;
496 QETH_DBF_TEXT(TRACE
, 2, "L2Smaccb");
497 cmd
= (struct qeth_ipa_cmd
*) data
;
498 if (cmd
->hdr
.return_code
) {
499 QETH_DBF_TEXT_(TRACE
, 2, "L2er%x", cmd
->hdr
.return_code
);
500 card
->info
.mac_bits
&= ~QETH_LAYER2_MAC_REGISTERED
;
501 cmd
->hdr
.return_code
= -EIO
;
503 card
->info
.mac_bits
|= QETH_LAYER2_MAC_REGISTERED
;
504 memcpy(card
->dev
->dev_addr
, cmd
->data
.setdelmac
.mac
,
506 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
507 "successfully registered on device %s\n",
508 card
->dev
->dev_addr
[0], card
->dev
->dev_addr
[1],
509 card
->dev
->dev_addr
[2], card
->dev
->dev_addr
[3],
510 card
->dev
->dev_addr
[4], card
->dev
->dev_addr
[5],
516 static int qeth_l2_send_setmac(struct qeth_card
*card
, __u8
*mac
)
518 QETH_DBF_TEXT(TRACE
, 2, "L2Setmac");
519 return qeth_l2_send_setdelmac(card
, mac
, IPA_CMD_SETVMAC
,
520 qeth_l2_send_setmac_cb
);
523 static int qeth_l2_send_delmac_cb(struct qeth_card
*card
,
524 struct qeth_reply
*reply
,
527 struct qeth_ipa_cmd
*cmd
;
529 QETH_DBF_TEXT(TRACE
, 2, "L2Dmaccb");
530 cmd
= (struct qeth_ipa_cmd
*) data
;
531 if (cmd
->hdr
.return_code
) {
532 QETH_DBF_TEXT_(TRACE
, 2, "err%d", cmd
->hdr
.return_code
);
533 cmd
->hdr
.return_code
= -EIO
;
536 card
->info
.mac_bits
&= ~QETH_LAYER2_MAC_REGISTERED
;
541 static int qeth_l2_send_delmac(struct qeth_card
*card
, __u8
*mac
)
543 QETH_DBF_TEXT(TRACE
, 2, "L2Delmac");
544 if (!(card
->info
.mac_bits
& QETH_LAYER2_MAC_REGISTERED
))
546 return qeth_l2_send_setdelmac(card
, mac
, IPA_CMD_DELVMAC
,
547 qeth_l2_send_delmac_cb
);
550 static int qeth_l2_request_initial_mac(struct qeth_card
*card
)
553 char vendor_pre
[] = {0x02, 0x00, 0x00};
555 QETH_DBF_TEXT(SETUP
, 2, "doL2init");
556 QETH_DBF_TEXT_(SETUP
, 2, "doL2%s", CARD_BUS_ID(card
));
558 rc
= qeth_query_setadapterparms(card
);
560 QETH_DBF_MESSAGE(2, "could not query adapter parameters on "
561 "device %s: x%x\n", CARD_BUS_ID(card
), rc
);
564 if ((card
->info
.type
== QETH_CARD_TYPE_IQD
) ||
565 (card
->info
.guestlan
)) {
566 rc
= qeth_setadpparms_change_macaddr(card
);
568 QETH_DBF_MESSAGE(2, "couldn't get MAC address on "
569 "device %s: x%x\n", CARD_BUS_ID(card
), rc
);
570 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
573 QETH_DBF_HEX(SETUP
, 2, card
->dev
->dev_addr
, OSA_ADDR_LEN
);
575 random_ether_addr(card
->dev
->dev_addr
);
576 memcpy(card
->dev
->dev_addr
, vendor_pre
, 3);
581 static int qeth_l2_set_mac_address(struct net_device
*dev
, void *p
)
583 struct sockaddr
*addr
= p
;
584 struct qeth_card
*card
= dev
->ml_priv
;
587 QETH_DBF_TEXT(TRACE
, 3, "setmac");
589 if (qeth_l2_verify_dev(dev
) != QETH_REAL_CARD
) {
590 QETH_DBF_TEXT(TRACE
, 3, "setmcINV");
594 if (card
->info
.type
== QETH_CARD_TYPE_OSN
) {
595 QETH_DBF_TEXT(TRACE
, 3, "setmcOSN");
598 QETH_DBF_TEXT_(TRACE
, 3, "%s", CARD_BUS_ID(card
));
599 QETH_DBF_HEX(TRACE
, 3, addr
->sa_data
, OSA_ADDR_LEN
);
600 rc
= qeth_l2_send_delmac(card
, &card
->dev
->dev_addr
[0]);
602 rc
= qeth_l2_send_setmac(card
, addr
->sa_data
);
606 static void qeth_l2_set_multicast_list(struct net_device
*dev
)
608 struct qeth_card
*card
= dev
->ml_priv
;
609 struct dev_addr_list
*dm
;
611 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
614 QETH_DBF_TEXT(TRACE
, 3, "setmulti");
615 qeth_l2_del_all_mc(card
);
616 spin_lock_bh(&card
->mclock
);
617 for (dm
= dev
->mc_list
; dm
; dm
= dm
->next
)
618 qeth_l2_add_mc(card
, dm
->da_addr
, 0);
620 for (dm
= dev
->uc_list
; dm
; dm
= dm
->next
)
621 qeth_l2_add_mc(card
, dm
->da_addr
, 1);
623 spin_unlock_bh(&card
->mclock
);
624 if (!qeth_adp_supported(card
, IPA_SETADP_SET_PROMISC_MODE
))
626 qeth_setadp_promisc_mode(card
);
629 static int qeth_l2_hard_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
632 struct qeth_hdr
*hdr
= NULL
;
634 struct qeth_card
*card
= dev
->ml_priv
;
635 struct sk_buff
*new_skb
= skb
;
636 int ipv
= qeth_get_ip_version(skb
);
637 int cast_type
= qeth_get_cast_type(card
, skb
);
638 struct qeth_qdio_out_q
*queue
= card
->qdio
.out_qs
639 [qeth_get_priority_queue(card
, skb
, ipv
, cast_type
)];
640 int tx_bytes
= skb
->len
;
641 enum qeth_large_send_types large_send
= QETH_LARGE_SEND_NO
;
642 struct qeth_eddp_context
*ctx
= NULL
;
643 int data_offset
= -1;
644 int elements_needed
= 0;
647 if ((card
->state
!= CARD_STATE_UP
) || !card
->lan_online
) {
648 card
->stats
.tx_carrier_errors
++;
652 if ((card
->info
.type
== QETH_CARD_TYPE_OSN
) &&
653 (skb
->protocol
== htons(ETH_P_IPV6
)))
656 if (card
->options
.performance_stats
) {
657 card
->perf_stats
.outbound_cnt
++;
658 card
->perf_stats
.outbound_start_time
= qeth_get_micros();
660 netif_stop_queue(dev
);
663 large_send
= QETH_LARGE_SEND_EDDP
;
665 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
666 hdr
= (struct qeth_hdr
*)skb
->data
;
668 if ((card
->info
.type
== QETH_CARD_TYPE_IQD
) && (!large_send
) &&
669 (skb_shinfo(skb
)->nr_frags
== 0)) {
671 data_offset
= ETH_HLEN
;
673 hdr
= kmem_cache_alloc(qeth_core_header_cache
,
678 skb_reset_mac_header(new_skb
);
679 qeth_l2_fill_header(card
, hdr
, new_skb
, ipv
, cast_type
);
680 hdr
->hdr
.l2
.pkt_length
= new_skb
->len
;
681 memcpy(((char *)hdr
) + sizeof(struct qeth_hdr
),
682 skb_mac_header(new_skb
), ETH_HLEN
);
684 /* create a clone with writeable headroom */
685 new_skb
= skb_realloc_headroom(skb
,
686 sizeof(struct qeth_hdr
));
689 hdr
= (struct qeth_hdr
*)skb_push(new_skb
,
690 sizeof(struct qeth_hdr
));
691 skb_set_mac_header(new_skb
, sizeof(struct qeth_hdr
));
692 qeth_l2_fill_header(card
, hdr
, new_skb
, ipv
, cast_type
);
696 if (large_send
== QETH_LARGE_SEND_EDDP
) {
697 ctx
= qeth_eddp_create_context(card
, new_skb
, hdr
,
698 skb
->sk
->sk_protocol
);
700 QETH_DBF_MESSAGE(2, "could not create eddp context\n");
704 elements
= qeth_get_elements_no(card
, (void *)hdr
, new_skb
,
707 if (data_offset
>= 0)
708 kmem_cache_free(qeth_core_header_cache
, hdr
);
713 if ((large_send
== QETH_LARGE_SEND_NO
) &&
714 (skb
->ip_summed
== CHECKSUM_PARTIAL
))
715 qeth_tx_csum(new_skb
);
717 if (card
->info
.type
!= QETH_CARD_TYPE_IQD
)
718 rc
= qeth_do_send_packet(card
, queue
, new_skb
, hdr
,
721 rc
= qeth_do_send_packet_fast(card
, queue
, new_skb
, hdr
,
722 elements
, ctx
, data_offset
, hd_len
);
724 card
->stats
.tx_packets
++;
725 card
->stats
.tx_bytes
+= tx_bytes
;
727 dev_kfree_skb_any(skb
);
728 if (card
->options
.performance_stats
) {
729 if (large_send
!= QETH_LARGE_SEND_NO
) {
730 card
->perf_stats
.large_send_bytes
+= tx_bytes
;
731 card
->perf_stats
.large_send_cnt
++;
733 if (skb_shinfo(new_skb
)->nr_frags
> 0) {
734 card
->perf_stats
.sg_skbs_sent
++;
735 /* nr_frags + skb->data */
736 card
->perf_stats
.sg_frags_sent
+=
737 skb_shinfo(new_skb
)->nr_frags
+ 1;
742 qeth_eddp_put_context(ctx
);
743 dev_kfree_skb_any(new_skb
);
747 qeth_eddp_put_context(ctx
);
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 wait_event(card
->wait_q
, qeth_threads_running(card
, 0xffffffff) == 0);
871 if (cgdev
->state
== CCWGROUP_ONLINE
) {
872 card
->use_hard_stop
= 1;
873 qeth_l2_set_offline(cgdev
);
877 unregister_netdev(card
->dev
);
881 qeth_l2_del_all_mc(card
);
885 static int qeth_l2_ethtool_set_tso(struct net_device
*dev
, u32 data
)
887 struct qeth_card
*card
= dev
->ml_priv
;
890 if (card
->options
.large_send
== QETH_LARGE_SEND_NO
) {
891 card
->options
.large_send
= QETH_LARGE_SEND_EDDP
;
892 dev
->features
|= NETIF_F_TSO
;
895 dev
->features
&= ~NETIF_F_TSO
;
896 card
->options
.large_send
= QETH_LARGE_SEND_NO
;
901 static struct ethtool_ops qeth_l2_ethtool_ops
= {
902 .get_link
= ethtool_op_get_link
,
903 .get_tx_csum
= ethtool_op_get_tx_csum
,
904 .set_tx_csum
= ethtool_op_set_tx_hw_csum
,
905 .get_sg
= ethtool_op_get_sg
,
906 .set_sg
= ethtool_op_set_sg
,
907 .get_tso
= ethtool_op_get_tso
,
908 .set_tso
= qeth_l2_ethtool_set_tso
,
909 .get_strings
= qeth_core_get_strings
,
910 .get_ethtool_stats
= qeth_core_get_ethtool_stats
,
911 .get_stats_count
= qeth_core_get_stats_count
,
912 .get_drvinfo
= qeth_core_get_drvinfo
,
913 .get_settings
= qeth_core_ethtool_get_settings
,
916 static struct ethtool_ops qeth_l2_osn_ops
= {
917 .get_strings
= qeth_core_get_strings
,
918 .get_ethtool_stats
= qeth_core_get_ethtool_stats
,
919 .get_stats_count
= qeth_core_get_stats_count
,
920 .get_drvinfo
= qeth_core_get_drvinfo
,
923 static int qeth_l2_setup_netdev(struct qeth_card
*card
)
925 switch (card
->info
.type
) {
926 case QETH_CARD_TYPE_OSAE
:
927 card
->dev
= alloc_etherdev(0);
929 case QETH_CARD_TYPE_IQD
:
930 card
->dev
= alloc_netdev(0, "hsi%d", ether_setup
);
932 case QETH_CARD_TYPE_OSN
:
933 card
->dev
= alloc_netdev(0, "osn%d", ether_setup
);
934 card
->dev
->flags
|= IFF_NOARP
;
937 card
->dev
= alloc_etherdev(0);
943 card
->dev
->ml_priv
= card
;
944 card
->dev
->tx_timeout
= &qeth_tx_timeout
;
945 card
->dev
->watchdog_timeo
= QETH_TX_TIMEOUT
;
946 card
->dev
->open
= qeth_l2_open
;
947 card
->dev
->stop
= qeth_l2_stop
;
948 card
->dev
->hard_start_xmit
= qeth_l2_hard_start_xmit
;
949 card
->dev
->do_ioctl
= qeth_l2_do_ioctl
;
950 card
->dev
->get_stats
= qeth_get_stats
;
951 card
->dev
->change_mtu
= qeth_change_mtu
;
952 card
->dev
->set_multicast_list
= qeth_l2_set_multicast_list
;
953 card
->dev
->vlan_rx_kill_vid
= qeth_l2_vlan_rx_kill_vid
;
954 card
->dev
->vlan_rx_add_vid
= qeth_l2_vlan_rx_add_vid
;
955 card
->dev
->set_mac_address
= qeth_l2_set_mac_address
;
956 card
->dev
->mtu
= card
->info
.initial_mtu
;
957 if (card
->info
.type
!= QETH_CARD_TYPE_OSN
)
958 SET_ETHTOOL_OPS(card
->dev
, &qeth_l2_ethtool_ops
);
960 SET_ETHTOOL_OPS(card
->dev
, &qeth_l2_osn_ops
);
961 card
->dev
->features
|= NETIF_F_HW_VLAN_FILTER
;
962 card
->info
.broadcast_capable
= 1;
963 qeth_l2_request_initial_mac(card
);
964 SET_NETDEV_DEV(card
->dev
, &card
->gdev
->dev
);
965 return register_netdev(card
->dev
);
968 static int __qeth_l2_set_online(struct ccwgroup_device
*gdev
, int recovery_mode
)
970 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
972 enum qeth_card_states recover_flag
;
975 QETH_DBF_TEXT(SETUP
, 2, "setonlin");
976 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
978 qeth_set_allowed_threads(card
, QETH_RECOVER_THREAD
, 1);
979 recover_flag
= card
->state
;
980 rc
= ccw_device_set_online(CARD_RDEV(card
));
982 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
985 rc
= ccw_device_set_online(CARD_WDEV(card
));
987 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
990 rc
= ccw_device_set_online(CARD_DDEV(card
));
992 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
996 rc
= qeth_core_hardsetup_card(card
);
998 QETH_DBF_TEXT_(SETUP
, 2, "2err%d", rc
);
1002 if (!card
->dev
&& qeth_l2_setup_netdev(card
))
1005 if (card
->info
.type
!= QETH_CARD_TYPE_OSN
)
1006 qeth_l2_send_setmac(card
, &card
->dev
->dev_addr
[0]);
1008 card
->state
= CARD_STATE_HARDSETUP
;
1009 qeth_print_status_message(card
);
1012 QETH_DBF_TEXT(SETUP
, 2, "softsetp");
1014 rc
= qeth_send_startlan(card
);
1016 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
1018 PRINT_WARN("LAN on card %s if offline! "
1019 "Waiting for STARTLAN from card.\n",
1021 card
->lan_online
= 0;
1025 card
->lan_online
= 1;
1027 if (card
->info
.type
!= QETH_CARD_TYPE_OSN
) {
1028 qeth_set_large_send(card
, card
->options
.large_send
);
1029 qeth_l2_process_vlans(card
, 0);
1032 netif_tx_disable(card
->dev
);
1034 rc
= qeth_init_qdio_queues(card
);
1036 QETH_DBF_TEXT_(SETUP
, 2, "6err%d", rc
);
1039 card
->state
= CARD_STATE_SOFTSETUP
;
1040 netif_carrier_on(card
->dev
);
1042 qeth_set_allowed_threads(card
, 0xffffffff, 0);
1043 if (recover_flag
== CARD_STATE_RECOVER
) {
1044 if (recovery_mode
&&
1045 card
->info
.type
!= QETH_CARD_TYPE_OSN
) {
1046 qeth_l2_open(card
->dev
);
1049 dev_open(card
->dev
);
1052 /* this also sets saved unicast addresses */
1053 qeth_l2_set_multicast_list(card
->dev
);
1055 /* let user_space know that device is online */
1056 kobject_uevent(&gdev
->dev
.kobj
, KOBJ_CHANGE
);
1059 card
->use_hard_stop
= 1;
1060 qeth_l2_stop_card(card
, 0);
1061 ccw_device_set_offline(CARD_DDEV(card
));
1062 ccw_device_set_offline(CARD_WDEV(card
));
1063 ccw_device_set_offline(CARD_RDEV(card
));
1064 if (recover_flag
== CARD_STATE_RECOVER
)
1065 card
->state
= CARD_STATE_RECOVER
;
1067 card
->state
= CARD_STATE_DOWN
;
1071 static int qeth_l2_set_online(struct ccwgroup_device
*gdev
)
1073 return __qeth_l2_set_online(gdev
, 0);
1076 static int __qeth_l2_set_offline(struct ccwgroup_device
*cgdev
,
1079 struct qeth_card
*card
= dev_get_drvdata(&cgdev
->dev
);
1080 int rc
= 0, rc2
= 0, rc3
= 0;
1081 enum qeth_card_states recover_flag
;
1083 QETH_DBF_TEXT(SETUP
, 3, "setoffl");
1084 QETH_DBF_HEX(SETUP
, 3, &card
, sizeof(void *));
1086 if (card
->dev
&& netif_carrier_ok(card
->dev
))
1087 netif_carrier_off(card
->dev
);
1088 recover_flag
= card
->state
;
1089 qeth_l2_stop_card(card
, recovery_mode
);
1090 rc
= ccw_device_set_offline(CARD_DDEV(card
));
1091 rc2
= ccw_device_set_offline(CARD_WDEV(card
));
1092 rc3
= ccw_device_set_offline(CARD_RDEV(card
));
1094 rc
= (rc2
) ? rc2
: rc3
;
1096 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
1097 if (recover_flag
== CARD_STATE_UP
)
1098 card
->state
= CARD_STATE_RECOVER
;
1099 /* let user_space know that device is offline */
1100 kobject_uevent(&cgdev
->dev
.kobj
, KOBJ_CHANGE
);
1104 static int qeth_l2_set_offline(struct ccwgroup_device
*cgdev
)
1106 return __qeth_l2_set_offline(cgdev
, 0);
1109 static int qeth_l2_recover(void *ptr
)
1111 struct qeth_card
*card
;
1114 card
= (struct qeth_card
*) ptr
;
1115 QETH_DBF_TEXT(TRACE
, 2, "recover1");
1116 QETH_DBF_HEX(TRACE
, 2, &card
, sizeof(void *));
1117 if (!qeth_do_run_thread(card
, QETH_RECOVER_THREAD
))
1119 QETH_DBF_TEXT(TRACE
, 2, "recover2");
1120 PRINT_WARN("Recovery of device %s started ...\n",
1122 card
->use_hard_stop
= 1;
1123 __qeth_l2_set_offline(card
->gdev
, 1);
1124 rc
= __qeth_l2_set_online(card
->gdev
, 1);
1125 /* don't run another scheduled recovery */
1126 qeth_clear_thread_start_bit(card
, QETH_RECOVER_THREAD
);
1127 qeth_clear_thread_running_bit(card
, QETH_RECOVER_THREAD
);
1129 PRINT_INFO("Device %s successfully recovered!\n",
1133 dev_close(card
->dev
);
1135 PRINT_INFO("Device %s could not be recovered!\n",
1141 static int __init
qeth_l2_init(void)
1143 PRINT_INFO("register layer 2 discipline\n");
1147 static void __exit
qeth_l2_exit(void)
1149 PRINT_INFO("unregister layer 2 discipline\n");
1152 static void qeth_l2_shutdown(struct ccwgroup_device
*gdev
)
1154 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
1155 qeth_qdio_clear_card(card
, 0);
1156 qeth_clear_qdio_buffers(card
);
1159 struct ccwgroup_driver qeth_l2_ccwgroup_driver
= {
1160 .probe
= qeth_l2_probe_device
,
1161 .remove
= qeth_l2_remove_device
,
1162 .set_online
= qeth_l2_set_online
,
1163 .set_offline
= qeth_l2_set_offline
,
1164 .shutdown
= qeth_l2_shutdown
,
1166 EXPORT_SYMBOL_GPL(qeth_l2_ccwgroup_driver
);
1168 static int qeth_osn_send_control_data(struct qeth_card
*card
, int len
,
1169 struct qeth_cmd_buffer
*iob
)
1171 unsigned long flags
;
1174 QETH_DBF_TEXT(TRACE
, 5, "osndctrd");
1176 wait_event(card
->wait_q
,
1177 atomic_cmpxchg(&card
->write
.irq_pending
, 0, 1) == 0);
1178 qeth_prepare_control_data(card
, len
, iob
);
1179 QETH_DBF_TEXT(TRACE
, 6, "osnoirqp");
1180 spin_lock_irqsave(get_ccwdev_lock(card
->write
.ccwdev
), flags
);
1181 rc
= ccw_device_start(card
->write
.ccwdev
, &card
->write
.ccw
,
1182 (addr_t
) iob
, 0, 0);
1183 spin_unlock_irqrestore(get_ccwdev_lock(card
->write
.ccwdev
), flags
);
1185 QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: "
1186 "ccw_device_start rc = %i\n", rc
);
1187 QETH_DBF_TEXT_(TRACE
, 2, " err%d", rc
);
1188 qeth_release_buffer(iob
->channel
, iob
);
1189 atomic_set(&card
->write
.irq_pending
, 0);
1190 wake_up(&card
->wait_q
);
1195 static int qeth_osn_send_ipa_cmd(struct qeth_card
*card
,
1196 struct qeth_cmd_buffer
*iob
, int data_len
)
1200 QETH_DBF_TEXT(TRACE
, 4, "osndipa");
1202 qeth_prepare_ipa_cmd(card
, iob
, QETH_PROT_OSN2
);
1203 s1
= (u16
)(IPA_PDU_HEADER_SIZE
+ data_len
);
1205 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob
->data
), &s1
, 2);
1206 memcpy(QETH_IPA_PDU_LEN_PDU1(iob
->data
), &s2
, 2);
1207 memcpy(QETH_IPA_PDU_LEN_PDU2(iob
->data
), &s2
, 2);
1208 memcpy(QETH_IPA_PDU_LEN_PDU3(iob
->data
), &s2
, 2);
1209 return qeth_osn_send_control_data(card
, s1
, iob
);
1212 int qeth_osn_assist(struct net_device
*dev
, void *data
, int data_len
)
1214 struct qeth_cmd_buffer
*iob
;
1215 struct qeth_card
*card
;
1218 QETH_DBF_TEXT(TRACE
, 2, "osnsdmc");
1221 card
= dev
->ml_priv
;
1224 if ((card
->state
!= CARD_STATE_UP
) &&
1225 (card
->state
!= CARD_STATE_SOFTSETUP
))
1227 iob
= qeth_wait_for_buffer(&card
->write
);
1228 memcpy(iob
->data
+IPA_PDU_HEADER_SIZE
, data
, data_len
);
1229 rc
= qeth_osn_send_ipa_cmd(card
, iob
, data_len
);
1232 EXPORT_SYMBOL(qeth_osn_assist
);
1234 int qeth_osn_register(unsigned char *read_dev_no
, struct net_device
**dev
,
1235 int (*assist_cb
)(struct net_device
*, void *),
1236 int (*data_cb
)(struct sk_buff
*))
1238 struct qeth_card
*card
;
1240 QETH_DBF_TEXT(TRACE
, 2, "osnreg");
1241 *dev
= qeth_l2_netdev_by_devno(read_dev_no
);
1244 card
= (*dev
)->ml_priv
;
1247 if ((assist_cb
== NULL
) || (data_cb
== NULL
))
1249 card
->osn_info
.assist_cb
= assist_cb
;
1250 card
->osn_info
.data_cb
= data_cb
;
1253 EXPORT_SYMBOL(qeth_osn_register
);
1255 void qeth_osn_deregister(struct net_device
*dev
)
1257 struct qeth_card
*card
;
1259 QETH_DBF_TEXT(TRACE
, 2, "osndereg");
1262 card
= dev
->ml_priv
;
1265 card
->osn_info
.assist_cb
= NULL
;
1266 card
->osn_info
.data_cb
= NULL
;
1269 EXPORT_SYMBOL(qeth_osn_deregister
);
1271 module_init(qeth_l2_init
);
1272 module_exit(qeth_l2_exit
);
1273 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
1274 MODULE_DESCRIPTION("qeth layer 2 discipline");
1275 MODULE_LICENSE("GPL");