2 * drivers/s390/net/qeth_core_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>
20 #include <linux/tcp.h>
21 #include <linux/mii.h>
22 #include <linux/kthread.h>
23 #include <linux/slab.h>
24 #include <net/iucv/af_iucv.h>
26 #include <asm/ebcdic.h>
28 #include <asm/sysinfo.h>
29 #include <asm/compat.h>
31 #include "qeth_core.h"
33 struct qeth_dbf_info qeth_dbf
[QETH_DBF_INFOS
] = {
34 /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */
36 [QETH_DBF_SETUP
] = {"qeth_setup",
37 8, 1, 8, 5, &debug_hex_ascii_view
, NULL
},
38 [QETH_DBF_MSG
] = {"qeth_msg",
39 8, 1, 128, 3, &debug_sprintf_view
, NULL
},
40 [QETH_DBF_CTRL
] = {"qeth_control",
41 8, 1, QETH_DBF_CTRL_LEN
, 5, &debug_hex_ascii_view
, NULL
},
43 EXPORT_SYMBOL_GPL(qeth_dbf
);
45 struct qeth_card_list_struct qeth_core_card_list
;
46 EXPORT_SYMBOL_GPL(qeth_core_card_list
);
47 struct kmem_cache
*qeth_core_header_cache
;
48 EXPORT_SYMBOL_GPL(qeth_core_header_cache
);
49 static struct kmem_cache
*qeth_qdio_outbuf_cache
;
51 static struct device
*qeth_core_root_dev
;
52 static unsigned int known_devices
[][6] = QETH_MODELLIST_ARRAY
;
53 static struct lock_class_key qdio_out_skb_queue_key
;
54 static struct mutex qeth_mod_mutex
;
56 static void qeth_send_control_data_cb(struct qeth_channel
*,
57 struct qeth_cmd_buffer
*);
58 static int qeth_issue_next_read(struct qeth_card
*);
59 static struct qeth_cmd_buffer
*qeth_get_buffer(struct qeth_channel
*);
60 static void qeth_setup_ccw(struct qeth_channel
*, unsigned char *, __u32
);
61 static void qeth_free_buffer_pool(struct qeth_card
*);
62 static int qeth_qdio_establish(struct qeth_card
*);
63 static void qeth_free_qdio_buffers(struct qeth_card
*);
64 static void qeth_notify_skbs(struct qeth_qdio_out_q
*queue
,
65 struct qeth_qdio_out_buffer
*buf
,
66 enum iucv_tx_notify notification
);
67 static void qeth_release_skbs(struct qeth_qdio_out_buffer
*buf
);
68 static void qeth_clear_output_buffer(struct qeth_qdio_out_q
*queue
,
69 struct qeth_qdio_out_buffer
*buf
,
70 enum qeth_qdio_buffer_states newbufstate
);
71 static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q
*, int);
73 static inline const char *qeth_get_cardname(struct qeth_card
*card
)
75 if (card
->info
.guestlan
) {
76 switch (card
->info
.type
) {
77 case QETH_CARD_TYPE_OSD
:
78 return " Guest LAN QDIO";
79 case QETH_CARD_TYPE_IQD
:
80 return " Guest LAN Hiper";
81 case QETH_CARD_TYPE_OSM
:
82 return " Guest LAN QDIO - OSM";
83 case QETH_CARD_TYPE_OSX
:
84 return " Guest LAN QDIO - OSX";
89 switch (card
->info
.type
) {
90 case QETH_CARD_TYPE_OSD
:
91 return " OSD Express";
92 case QETH_CARD_TYPE_IQD
:
93 return " HiperSockets";
94 case QETH_CARD_TYPE_OSN
:
96 case QETH_CARD_TYPE_OSM
:
98 case QETH_CARD_TYPE_OSX
:
107 /* max length to be returned: 14 */
108 const char *qeth_get_cardname_short(struct qeth_card
*card
)
110 if (card
->info
.guestlan
) {
111 switch (card
->info
.type
) {
112 case QETH_CARD_TYPE_OSD
:
113 return "GuestLAN QDIO";
114 case QETH_CARD_TYPE_IQD
:
115 return "GuestLAN Hiper";
116 case QETH_CARD_TYPE_OSM
:
117 return "GuestLAN OSM";
118 case QETH_CARD_TYPE_OSX
:
119 return "GuestLAN OSX";
124 switch (card
->info
.type
) {
125 case QETH_CARD_TYPE_OSD
:
126 switch (card
->info
.link_type
) {
127 case QETH_LINK_TYPE_FAST_ETH
:
129 case QETH_LINK_TYPE_HSTR
:
131 case QETH_LINK_TYPE_GBIT_ETH
:
133 case QETH_LINK_TYPE_10GBIT_ETH
:
135 case QETH_LINK_TYPE_LANE_ETH100
:
136 return "OSD_FE_LANE";
137 case QETH_LINK_TYPE_LANE_TR
:
138 return "OSD_TR_LANE";
139 case QETH_LINK_TYPE_LANE_ETH1000
:
140 return "OSD_GbE_LANE";
141 case QETH_LINK_TYPE_LANE
:
142 return "OSD_ATM_LANE";
144 return "OSD_Express";
146 case QETH_CARD_TYPE_IQD
:
147 return "HiperSockets";
148 case QETH_CARD_TYPE_OSN
:
150 case QETH_CARD_TYPE_OSM
:
152 case QETH_CARD_TYPE_OSX
:
161 void qeth_set_allowed_threads(struct qeth_card
*card
, unsigned long threads
,
162 int clear_start_mask
)
166 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
167 card
->thread_allowed_mask
= threads
;
168 if (clear_start_mask
)
169 card
->thread_start_mask
&= threads
;
170 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
171 wake_up(&card
->wait_q
);
173 EXPORT_SYMBOL_GPL(qeth_set_allowed_threads
);
175 int qeth_threads_running(struct qeth_card
*card
, unsigned long threads
)
180 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
181 rc
= (card
->thread_running_mask
& threads
);
182 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
185 EXPORT_SYMBOL_GPL(qeth_threads_running
);
187 int qeth_wait_for_threads(struct qeth_card
*card
, unsigned long threads
)
189 return wait_event_interruptible(card
->wait_q
,
190 qeth_threads_running(card
, threads
) == 0);
192 EXPORT_SYMBOL_GPL(qeth_wait_for_threads
);
194 void qeth_clear_working_pool_list(struct qeth_card
*card
)
196 struct qeth_buffer_pool_entry
*pool_entry
, *tmp
;
198 QETH_CARD_TEXT(card
, 5, "clwrklst");
199 list_for_each_entry_safe(pool_entry
, tmp
,
200 &card
->qdio
.in_buf_pool
.entry_list
, list
){
201 list_del(&pool_entry
->list
);
204 EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list
);
206 static int qeth_alloc_buffer_pool(struct qeth_card
*card
)
208 struct qeth_buffer_pool_entry
*pool_entry
;
212 QETH_CARD_TEXT(card
, 5, "alocpool");
213 for (i
= 0; i
< card
->qdio
.init_pool
.buf_count
; ++i
) {
214 pool_entry
= kzalloc(sizeof(*pool_entry
), GFP_KERNEL
);
216 qeth_free_buffer_pool(card
);
219 for (j
= 0; j
< QETH_MAX_BUFFER_ELEMENTS(card
); ++j
) {
220 ptr
= (void *) __get_free_page(GFP_KERNEL
);
223 free_page((unsigned long)
224 pool_entry
->elements
[--j
]);
226 qeth_free_buffer_pool(card
);
229 pool_entry
->elements
[j
] = ptr
;
231 list_add(&pool_entry
->init_list
,
232 &card
->qdio
.init_pool
.entry_list
);
237 int qeth_realloc_buffer_pool(struct qeth_card
*card
, int bufcnt
)
239 QETH_CARD_TEXT(card
, 2, "realcbp");
241 if ((card
->state
!= CARD_STATE_DOWN
) &&
242 (card
->state
!= CARD_STATE_RECOVER
))
245 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
246 qeth_clear_working_pool_list(card
);
247 qeth_free_buffer_pool(card
);
248 card
->qdio
.in_buf_pool
.buf_count
= bufcnt
;
249 card
->qdio
.init_pool
.buf_count
= bufcnt
;
250 return qeth_alloc_buffer_pool(card
);
252 EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool
);
254 static inline int qeth_cq_init(struct qeth_card
*card
)
258 if (card
->options
.cq
== QETH_CQ_ENABLED
) {
259 QETH_DBF_TEXT(SETUP
, 2, "cqinit");
260 memset(card
->qdio
.c_q
->qdio_bufs
, 0,
261 QDIO_MAX_BUFFERS_PER_Q
* sizeof(struct qdio_buffer
));
262 card
->qdio
.c_q
->next_buf_to_init
= 127;
263 rc
= do_QDIO(CARD_DDEV(card
), QDIO_FLAG_SYNC_INPUT
,
264 card
->qdio
.no_in_queues
- 1, 0,
267 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
276 static inline int qeth_alloc_cq(struct qeth_card
*card
)
280 if (card
->options
.cq
== QETH_CQ_ENABLED
) {
282 struct qdio_outbuf_state
*outbuf_states
;
284 QETH_DBF_TEXT(SETUP
, 2, "cqon");
285 card
->qdio
.c_q
= kzalloc(sizeof(struct qeth_qdio_q
),
287 if (!card
->qdio
.c_q
) {
291 QETH_DBF_HEX(SETUP
, 2, &card
->qdio
.c_q
, sizeof(void *));
293 for (i
= 0; i
< QDIO_MAX_BUFFERS_PER_Q
; ++i
) {
294 card
->qdio
.c_q
->bufs
[i
].buffer
=
295 &card
->qdio
.c_q
->qdio_bufs
[i
];
298 card
->qdio
.no_in_queues
= 2;
300 card
->qdio
.out_bufstates
= (struct qdio_outbuf_state
*)
301 kzalloc(card
->qdio
.no_out_queues
*
302 QDIO_MAX_BUFFERS_PER_Q
*
303 sizeof(struct qdio_outbuf_state
), GFP_KERNEL
);
304 outbuf_states
= card
->qdio
.out_bufstates
;
305 if (outbuf_states
== NULL
) {
309 for (i
= 0; i
< card
->qdio
.no_out_queues
; ++i
) {
310 card
->qdio
.out_qs
[i
]->bufstates
= outbuf_states
;
311 outbuf_states
+= QDIO_MAX_BUFFERS_PER_Q
;
314 QETH_DBF_TEXT(SETUP
, 2, "nocq");
315 card
->qdio
.c_q
= NULL
;
316 card
->qdio
.no_in_queues
= 1;
318 QETH_DBF_TEXT_(SETUP
, 2, "iqc%d", card
->qdio
.no_in_queues
);
323 kfree(card
->qdio
.c_q
);
324 card
->qdio
.c_q
= NULL
;
326 dev_err(&card
->gdev
->dev
, "Failed to create completion queue\n");
330 static inline void qeth_free_cq(struct qeth_card
*card
)
332 if (card
->qdio
.c_q
) {
333 --card
->qdio
.no_in_queues
;
334 kfree(card
->qdio
.c_q
);
335 card
->qdio
.c_q
= NULL
;
337 kfree(card
->qdio
.out_bufstates
);
338 card
->qdio
.out_bufstates
= NULL
;
341 static inline enum iucv_tx_notify
qeth_compute_cq_notification(int sbalf15
,
343 enum iucv_tx_notify n
;
347 n
= delayed
? TX_NOTIFY_DELAYED_OK
: TX_NOTIFY_OK
;
353 n
= delayed
? TX_NOTIFY_DELAYED_UNREACHABLE
:
354 TX_NOTIFY_UNREACHABLE
;
357 n
= delayed
? TX_NOTIFY_DELAYED_GENERALERROR
:
358 TX_NOTIFY_GENERALERROR
;
365 static inline void qeth_cleanup_handled_pending(struct qeth_qdio_out_q
*q
,
366 int bidx
, int forced_cleanup
)
368 if (q
->card
->options
.cq
!= QETH_CQ_ENABLED
)
371 if (q
->bufs
[bidx
]->next_pending
!= NULL
) {
372 struct qeth_qdio_out_buffer
*head
= q
->bufs
[bidx
];
373 struct qeth_qdio_out_buffer
*c
= q
->bufs
[bidx
]->next_pending
;
376 if (forced_cleanup
||
377 atomic_read(&c
->state
) ==
378 QETH_QDIO_BUF_HANDLED_DELAYED
) {
379 struct qeth_qdio_out_buffer
*f
= c
;
380 QETH_CARD_TEXT(f
->q
->card
, 5, "fp");
381 QETH_CARD_TEXT_(f
->q
->card
, 5, "%lx", (long) f
);
382 /* release here to avoid interleaving between
383 outbound tasklet and inbound tasklet
384 regarding notifications and lifecycle */
385 qeth_release_skbs(c
);
388 BUG_ON(head
->next_pending
!= f
);
389 head
->next_pending
= c
;
390 kmem_cache_free(qeth_qdio_outbuf_cache
, f
);
398 if (forced_cleanup
&& (atomic_read(&(q
->bufs
[bidx
]->state
)) ==
399 QETH_QDIO_BUF_HANDLED_DELAYED
)) {
400 /* for recovery situations */
401 q
->bufs
[bidx
]->aob
= q
->bufstates
[bidx
].aob
;
402 qeth_init_qdio_out_buf(q
, bidx
);
403 QETH_CARD_TEXT(q
->card
, 2, "clprecov");
408 static inline void qeth_qdio_handle_aob(struct qeth_card
*card
,
409 unsigned long phys_aob_addr
) {
411 struct qeth_qdio_out_buffer
*buffer
;
412 enum iucv_tx_notify notification
;
414 aob
= (struct qaob
*) phys_to_virt(phys_aob_addr
);
415 QETH_CARD_TEXT(card
, 5, "haob");
416 QETH_CARD_TEXT_(card
, 5, "%lx", phys_aob_addr
);
417 buffer
= (struct qeth_qdio_out_buffer
*) aob
->user1
;
418 QETH_CARD_TEXT_(card
, 5, "%lx", aob
->user1
);
420 BUG_ON(buffer
== NULL
);
422 if (atomic_cmpxchg(&buffer
->state
, QETH_QDIO_BUF_PRIMED
,
423 QETH_QDIO_BUF_IN_CQ
) == QETH_QDIO_BUF_PRIMED
) {
424 notification
= TX_NOTIFY_OK
;
426 BUG_ON(atomic_read(&buffer
->state
) != QETH_QDIO_BUF_PENDING
);
427 atomic_set(&buffer
->state
, QETH_QDIO_BUF_IN_CQ
);
428 notification
= TX_NOTIFY_DELAYED_OK
;
431 if (aob
->aorc
!= 0) {
432 QETH_CARD_TEXT_(card
, 2, "aorc%02X", aob
->aorc
);
433 notification
= qeth_compute_cq_notification(aob
->aorc
, 1);
435 qeth_notify_skbs(buffer
->q
, buffer
, notification
);
438 qeth_clear_output_buffer(buffer
->q
, buffer
,
439 QETH_QDIO_BUF_HANDLED_DELAYED
);
441 /* from here on: do not touch buffer anymore */
442 qdio_release_aob(aob
);
445 static inline int qeth_is_cq(struct qeth_card
*card
, unsigned int queue
)
447 return card
->options
.cq
== QETH_CQ_ENABLED
&&
448 card
->qdio
.c_q
!= NULL
&&
450 queue
== card
->qdio
.no_in_queues
- 1;
454 static int qeth_issue_next_read(struct qeth_card
*card
)
457 struct qeth_cmd_buffer
*iob
;
459 QETH_CARD_TEXT(card
, 5, "issnxrd");
460 if (card
->read
.state
!= CH_STATE_UP
)
462 iob
= qeth_get_buffer(&card
->read
);
464 dev_warn(&card
->gdev
->dev
, "The qeth device driver "
465 "failed to recover an error on the device\n");
466 QETH_DBF_MESSAGE(2, "%s issue_next_read failed: no iob "
467 "available\n", dev_name(&card
->gdev
->dev
));
470 qeth_setup_ccw(&card
->read
, iob
->data
, QETH_BUFSIZE
);
471 QETH_CARD_TEXT(card
, 6, "noirqpnd");
472 rc
= ccw_device_start(card
->read
.ccwdev
, &card
->read
.ccw
,
475 QETH_DBF_MESSAGE(2, "%s error in starting next read ccw! "
476 "rc=%i\n", dev_name(&card
->gdev
->dev
), rc
);
477 atomic_set(&card
->read
.irq_pending
, 0);
478 card
->read_or_write_problem
= 1;
479 qeth_schedule_recovery(card
);
480 wake_up(&card
->wait_q
);
485 static struct qeth_reply
*qeth_alloc_reply(struct qeth_card
*card
)
487 struct qeth_reply
*reply
;
489 reply
= kzalloc(sizeof(struct qeth_reply
), GFP_ATOMIC
);
491 atomic_set(&reply
->refcnt
, 1);
492 atomic_set(&reply
->received
, 0);
498 static void qeth_get_reply(struct qeth_reply
*reply
)
500 WARN_ON(atomic_read(&reply
->refcnt
) <= 0);
501 atomic_inc(&reply
->refcnt
);
504 static void qeth_put_reply(struct qeth_reply
*reply
)
506 WARN_ON(atomic_read(&reply
->refcnt
) <= 0);
507 if (atomic_dec_and_test(&reply
->refcnt
))
511 static void qeth_issue_ipa_msg(struct qeth_ipa_cmd
*cmd
, int rc
,
512 struct qeth_card
*card
)
515 int com
= cmd
->hdr
.command
;
516 ipa_name
= qeth_get_ipa_cmd_name(com
);
518 QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s/%s returned "
520 ipa_name
, com
, dev_name(&card
->gdev
->dev
),
521 QETH_CARD_IFNAME(card
), rc
,
522 qeth_get_ipa_msg(rc
));
524 QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s/%s succeeded\n",
525 ipa_name
, com
, dev_name(&card
->gdev
->dev
),
526 QETH_CARD_IFNAME(card
));
529 static struct qeth_ipa_cmd
*qeth_check_ipa_data(struct qeth_card
*card
,
530 struct qeth_cmd_buffer
*iob
)
532 struct qeth_ipa_cmd
*cmd
= NULL
;
534 QETH_CARD_TEXT(card
, 5, "chkipad");
535 if (IS_IPA(iob
->data
)) {
536 cmd
= (struct qeth_ipa_cmd
*) PDU_ENCAPSULATION(iob
->data
);
537 if (IS_IPA_REPLY(cmd
)) {
538 if (cmd
->hdr
.command
!= IPA_CMD_SETCCID
&&
539 cmd
->hdr
.command
!= IPA_CMD_DELCCID
&&
540 cmd
->hdr
.command
!= IPA_CMD_MODCCID
&&
541 cmd
->hdr
.command
!= IPA_CMD_SET_DIAG_ASS
)
542 qeth_issue_ipa_msg(cmd
,
543 cmd
->hdr
.return_code
, card
);
546 switch (cmd
->hdr
.command
) {
547 case IPA_CMD_STOPLAN
:
548 dev_warn(&card
->gdev
->dev
,
549 "The link for interface %s on CHPID"
551 QETH_CARD_IFNAME(card
),
553 card
->lan_online
= 0;
554 if (card
->dev
&& netif_carrier_ok(card
->dev
))
555 netif_carrier_off(card
->dev
);
557 case IPA_CMD_STARTLAN
:
558 dev_info(&card
->gdev
->dev
,
559 "The link for %s on CHPID 0x%X has"
561 QETH_CARD_IFNAME(card
),
563 netif_carrier_on(card
->dev
);
564 card
->lan_online
= 1;
565 if (card
->info
.hwtrap
)
566 card
->info
.hwtrap
= 2;
567 qeth_schedule_recovery(card
);
569 case IPA_CMD_MODCCID
:
571 case IPA_CMD_REGISTER_LOCAL_ADDR
:
572 QETH_CARD_TEXT(card
, 3, "irla");
574 case IPA_CMD_UNREGISTER_LOCAL_ADDR
:
575 QETH_CARD_TEXT(card
, 3, "urla");
578 QETH_DBF_MESSAGE(2, "Received data is IPA "
579 "but not a reply!\n");
587 void qeth_clear_ipacmd_list(struct qeth_card
*card
)
589 struct qeth_reply
*reply
, *r
;
592 QETH_CARD_TEXT(card
, 4, "clipalst");
594 spin_lock_irqsave(&card
->lock
, flags
);
595 list_for_each_entry_safe(reply
, r
, &card
->cmd_waiter_list
, list
) {
596 qeth_get_reply(reply
);
598 atomic_inc(&reply
->received
);
599 list_del_init(&reply
->list
);
600 wake_up(&reply
->wait_q
);
601 qeth_put_reply(reply
);
603 spin_unlock_irqrestore(&card
->lock
, flags
);
604 atomic_set(&card
->write
.irq_pending
, 0);
606 EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list
);
608 static int qeth_check_idx_response(struct qeth_card
*card
,
609 unsigned char *buffer
)
614 QETH_DBF_HEX(CTRL
, 2, buffer
, QETH_DBF_CTRL_LEN
);
615 if ((buffer
[2] & 0xc0) == 0xc0) {
616 QETH_DBF_MESSAGE(2, "received an IDX TERMINATE "
617 "with cause code 0x%02x%s\n",
619 ((buffer
[4] == 0x22) ?
620 " -- try another portname" : ""));
621 QETH_CARD_TEXT(card
, 2, "ckidxres");
622 QETH_CARD_TEXT(card
, 2, " idxterm");
623 QETH_CARD_TEXT_(card
, 2, " rc%d", -EIO
);
624 if (buffer
[4] == 0xf6) {
625 dev_err(&card
->gdev
->dev
,
626 "The qeth device is not configured "
627 "for the OSI layer required by z/VM\n");
635 static void qeth_setup_ccw(struct qeth_channel
*channel
, unsigned char *iob
,
638 struct qeth_card
*card
;
640 card
= CARD_FROM_CDEV(channel
->ccwdev
);
641 QETH_CARD_TEXT(card
, 4, "setupccw");
642 if (channel
== &card
->read
)
643 memcpy(&channel
->ccw
, READ_CCW
, sizeof(struct ccw1
));
645 memcpy(&channel
->ccw
, WRITE_CCW
, sizeof(struct ccw1
));
646 channel
->ccw
.count
= len
;
647 channel
->ccw
.cda
= (__u32
) __pa(iob
);
650 static struct qeth_cmd_buffer
*__qeth_get_buffer(struct qeth_channel
*channel
)
654 QETH_CARD_TEXT(CARD_FROM_CDEV(channel
->ccwdev
), 6, "getbuff");
655 index
= channel
->io_buf_no
;
657 if (channel
->iob
[index
].state
== BUF_STATE_FREE
) {
658 channel
->iob
[index
].state
= BUF_STATE_LOCKED
;
659 channel
->io_buf_no
= (channel
->io_buf_no
+ 1) %
661 memset(channel
->iob
[index
].data
, 0, QETH_BUFSIZE
);
662 return channel
->iob
+ index
;
664 index
= (index
+ 1) % QETH_CMD_BUFFER_NO
;
665 } while (index
!= channel
->io_buf_no
);
670 void qeth_release_buffer(struct qeth_channel
*channel
,
671 struct qeth_cmd_buffer
*iob
)
675 QETH_CARD_TEXT(CARD_FROM_CDEV(channel
->ccwdev
), 6, "relbuff");
676 spin_lock_irqsave(&channel
->iob_lock
, flags
);
677 memset(iob
->data
, 0, QETH_BUFSIZE
);
678 iob
->state
= BUF_STATE_FREE
;
679 iob
->callback
= qeth_send_control_data_cb
;
681 spin_unlock_irqrestore(&channel
->iob_lock
, flags
);
682 wake_up(&channel
->wait_q
);
684 EXPORT_SYMBOL_GPL(qeth_release_buffer
);
686 static struct qeth_cmd_buffer
*qeth_get_buffer(struct qeth_channel
*channel
)
688 struct qeth_cmd_buffer
*buffer
= NULL
;
691 spin_lock_irqsave(&channel
->iob_lock
, flags
);
692 buffer
= __qeth_get_buffer(channel
);
693 spin_unlock_irqrestore(&channel
->iob_lock
, flags
);
697 struct qeth_cmd_buffer
*qeth_wait_for_buffer(struct qeth_channel
*channel
)
699 struct qeth_cmd_buffer
*buffer
;
700 wait_event(channel
->wait_q
,
701 ((buffer
= qeth_get_buffer(channel
)) != NULL
));
704 EXPORT_SYMBOL_GPL(qeth_wait_for_buffer
);
706 void qeth_clear_cmd_buffers(struct qeth_channel
*channel
)
710 for (cnt
= 0; cnt
< QETH_CMD_BUFFER_NO
; cnt
++)
711 qeth_release_buffer(channel
, &channel
->iob
[cnt
]);
713 channel
->io_buf_no
= 0;
715 EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers
);
717 static void qeth_send_control_data_cb(struct qeth_channel
*channel
,
718 struct qeth_cmd_buffer
*iob
)
720 struct qeth_card
*card
;
721 struct qeth_reply
*reply
, *r
;
722 struct qeth_ipa_cmd
*cmd
;
727 card
= CARD_FROM_CDEV(channel
->ccwdev
);
728 QETH_CARD_TEXT(card
, 4, "sndctlcb");
729 rc
= qeth_check_idx_response(card
, iob
->data
);
734 qeth_clear_ipacmd_list(card
);
735 qeth_schedule_recovery(card
);
741 cmd
= qeth_check_ipa_data(card
, iob
);
742 if ((cmd
== NULL
) && (card
->state
!= CARD_STATE_DOWN
))
744 /*in case of OSN : check if cmd is set */
745 if (card
->info
.type
== QETH_CARD_TYPE_OSN
&&
747 cmd
->hdr
.command
!= IPA_CMD_STARTLAN
&&
748 card
->osn_info
.assist_cb
!= NULL
) {
749 card
->osn_info
.assist_cb(card
->dev
, cmd
);
753 spin_lock_irqsave(&card
->lock
, flags
);
754 list_for_each_entry_safe(reply
, r
, &card
->cmd_waiter_list
, list
) {
755 if ((reply
->seqno
== QETH_IDX_COMMAND_SEQNO
) ||
756 ((cmd
) && (reply
->seqno
== cmd
->hdr
.seqno
))) {
757 qeth_get_reply(reply
);
758 list_del_init(&reply
->list
);
759 spin_unlock_irqrestore(&card
->lock
, flags
);
761 if (reply
->callback
!= NULL
) {
763 reply
->offset
= (__u16
)((char *)cmd
-
765 keep_reply
= reply
->callback(card
,
769 keep_reply
= reply
->callback(card
,
774 reply
->rc
= (u16
) cmd
->hdr
.return_code
;
778 spin_lock_irqsave(&card
->lock
, flags
);
779 list_add_tail(&reply
->list
,
780 &card
->cmd_waiter_list
);
781 spin_unlock_irqrestore(&card
->lock
, flags
);
783 atomic_inc(&reply
->received
);
784 wake_up(&reply
->wait_q
);
786 qeth_put_reply(reply
);
790 spin_unlock_irqrestore(&card
->lock
, flags
);
792 memcpy(&card
->seqno
.pdu_hdr_ack
,
793 QETH_PDU_HEADER_SEQ_NO(iob
->data
),
795 qeth_release_buffer(channel
, iob
);
798 static int qeth_setup_channel(struct qeth_channel
*channel
)
802 QETH_DBF_TEXT(SETUP
, 2, "setupch");
803 for (cnt
= 0; cnt
< QETH_CMD_BUFFER_NO
; cnt
++) {
804 channel
->iob
[cnt
].data
=
805 kzalloc(QETH_BUFSIZE
, GFP_DMA
|GFP_KERNEL
);
806 if (channel
->iob
[cnt
].data
== NULL
)
808 channel
->iob
[cnt
].state
= BUF_STATE_FREE
;
809 channel
->iob
[cnt
].channel
= channel
;
810 channel
->iob
[cnt
].callback
= qeth_send_control_data_cb
;
811 channel
->iob
[cnt
].rc
= 0;
813 if (cnt
< QETH_CMD_BUFFER_NO
) {
815 kfree(channel
->iob
[cnt
].data
);
819 channel
->io_buf_no
= 0;
820 atomic_set(&channel
->irq_pending
, 0);
821 spin_lock_init(&channel
->iob_lock
);
823 init_waitqueue_head(&channel
->wait_q
);
827 static int qeth_set_thread_start_bit(struct qeth_card
*card
,
828 unsigned long thread
)
832 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
833 if (!(card
->thread_allowed_mask
& thread
) ||
834 (card
->thread_start_mask
& thread
)) {
835 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
838 card
->thread_start_mask
|= thread
;
839 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
843 void qeth_clear_thread_start_bit(struct qeth_card
*card
, unsigned long thread
)
847 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
848 card
->thread_start_mask
&= ~thread
;
849 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
850 wake_up(&card
->wait_q
);
852 EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit
);
854 void qeth_clear_thread_running_bit(struct qeth_card
*card
, unsigned long thread
)
858 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
859 card
->thread_running_mask
&= ~thread
;
860 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
861 wake_up(&card
->wait_q
);
863 EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit
);
865 static int __qeth_do_run_thread(struct qeth_card
*card
, unsigned long thread
)
870 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
871 if (card
->thread_start_mask
& thread
) {
872 if ((card
->thread_allowed_mask
& thread
) &&
873 !(card
->thread_running_mask
& thread
)) {
875 card
->thread_start_mask
&= ~thread
;
876 card
->thread_running_mask
|= thread
;
880 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
884 int qeth_do_run_thread(struct qeth_card
*card
, unsigned long thread
)
888 wait_event(card
->wait_q
,
889 (rc
= __qeth_do_run_thread(card
, thread
)) >= 0);
892 EXPORT_SYMBOL_GPL(qeth_do_run_thread
);
894 void qeth_schedule_recovery(struct qeth_card
*card
)
896 QETH_CARD_TEXT(card
, 2, "startrec");
897 if (qeth_set_thread_start_bit(card
, QETH_RECOVER_THREAD
) == 0)
898 schedule_work(&card
->kernel_thread_starter
);
900 EXPORT_SYMBOL_GPL(qeth_schedule_recovery
);
902 static int qeth_get_problem(struct ccw_device
*cdev
, struct irb
*irb
)
906 struct qeth_card
*card
;
908 sense
= (char *) irb
->ecw
;
909 cstat
= irb
->scsw
.cmd
.cstat
;
910 dstat
= irb
->scsw
.cmd
.dstat
;
911 card
= CARD_FROM_CDEV(cdev
);
913 if (cstat
& (SCHN_STAT_CHN_CTRL_CHK
| SCHN_STAT_INTF_CTRL_CHK
|
914 SCHN_STAT_CHN_DATA_CHK
| SCHN_STAT_CHAIN_CHECK
|
915 SCHN_STAT_PROT_CHECK
| SCHN_STAT_PROG_CHECK
)) {
916 QETH_CARD_TEXT(card
, 2, "CGENCHK");
917 dev_warn(&cdev
->dev
, "The qeth device driver "
918 "failed to recover an error on the device\n");
919 QETH_DBF_MESSAGE(2, "%s check on device dstat=x%x, cstat=x%x\n",
920 dev_name(&cdev
->dev
), dstat
, cstat
);
921 print_hex_dump(KERN_WARNING
, "qeth: irb ", DUMP_PREFIX_OFFSET
,
926 if (dstat
& DEV_STAT_UNIT_CHECK
) {
927 if (sense
[SENSE_RESETTING_EVENT_BYTE
] &
928 SENSE_RESETTING_EVENT_FLAG
) {
929 QETH_CARD_TEXT(card
, 2, "REVIND");
932 if (sense
[SENSE_COMMAND_REJECT_BYTE
] &
933 SENSE_COMMAND_REJECT_FLAG
) {
934 QETH_CARD_TEXT(card
, 2, "CMDREJi");
937 if ((sense
[2] == 0xaf) && (sense
[3] == 0xfe)) {
938 QETH_CARD_TEXT(card
, 2, "AFFE");
941 if ((!sense
[0]) && (!sense
[1]) && (!sense
[2]) && (!sense
[3])) {
942 QETH_CARD_TEXT(card
, 2, "ZEROSEN");
945 QETH_CARD_TEXT(card
, 2, "DGENCHK");
951 static long __qeth_check_irb_error(struct ccw_device
*cdev
,
952 unsigned long intparm
, struct irb
*irb
)
954 struct qeth_card
*card
;
956 card
= CARD_FROM_CDEV(cdev
);
961 switch (PTR_ERR(irb
)) {
963 QETH_DBF_MESSAGE(2, "%s i/o-error on device\n",
964 dev_name(&cdev
->dev
));
965 QETH_CARD_TEXT(card
, 2, "ckirberr");
966 QETH_CARD_TEXT_(card
, 2, " rc%d", -EIO
);
969 dev_warn(&cdev
->dev
, "A hardware operation timed out"
971 QETH_CARD_TEXT(card
, 2, "ckirberr");
972 QETH_CARD_TEXT_(card
, 2, " rc%d", -ETIMEDOUT
);
973 if (intparm
== QETH_RCD_PARM
) {
974 if (card
&& (card
->data
.ccwdev
== cdev
)) {
975 card
->data
.state
= CH_STATE_DOWN
;
976 wake_up(&card
->wait_q
);
981 QETH_DBF_MESSAGE(2, "%s unknown error %ld on device\n",
982 dev_name(&cdev
->dev
), PTR_ERR(irb
));
983 QETH_CARD_TEXT(card
, 2, "ckirberr");
984 QETH_CARD_TEXT(card
, 2, " rc???");
989 static void qeth_irq(struct ccw_device
*cdev
, unsigned long intparm
,
994 struct qeth_cmd_buffer
*buffer
;
995 struct qeth_channel
*channel
;
996 struct qeth_card
*card
;
997 struct qeth_cmd_buffer
*iob
;
1000 if (__qeth_check_irb_error(cdev
, intparm
, irb
))
1002 cstat
= irb
->scsw
.cmd
.cstat
;
1003 dstat
= irb
->scsw
.cmd
.dstat
;
1005 card
= CARD_FROM_CDEV(cdev
);
1009 QETH_CARD_TEXT(card
, 5, "irq");
1011 if (card
->read
.ccwdev
== cdev
) {
1012 channel
= &card
->read
;
1013 QETH_CARD_TEXT(card
, 5, "read");
1014 } else if (card
->write
.ccwdev
== cdev
) {
1015 channel
= &card
->write
;
1016 QETH_CARD_TEXT(card
, 5, "write");
1018 channel
= &card
->data
;
1019 QETH_CARD_TEXT(card
, 5, "data");
1021 atomic_set(&channel
->irq_pending
, 0);
1023 if (irb
->scsw
.cmd
.fctl
& (SCSW_FCTL_CLEAR_FUNC
))
1024 channel
->state
= CH_STATE_STOPPED
;
1026 if (irb
->scsw
.cmd
.fctl
& (SCSW_FCTL_HALT_FUNC
))
1027 channel
->state
= CH_STATE_HALTED
;
1029 /*let's wake up immediately on data channel*/
1030 if ((channel
== &card
->data
) && (intparm
!= 0) &&
1031 (intparm
!= QETH_RCD_PARM
))
1034 if (intparm
== QETH_CLEAR_CHANNEL_PARM
) {
1035 QETH_CARD_TEXT(card
, 6, "clrchpar");
1036 /* we don't have to handle this further */
1039 if (intparm
== QETH_HALT_CHANNEL_PARM
) {
1040 QETH_CARD_TEXT(card
, 6, "hltchpar");
1041 /* we don't have to handle this further */
1044 if ((dstat
& DEV_STAT_UNIT_EXCEP
) ||
1045 (dstat
& DEV_STAT_UNIT_CHECK
) ||
1047 if (irb
->esw
.esw0
.erw
.cons
) {
1048 dev_warn(&channel
->ccwdev
->dev
,
1049 "The qeth device driver failed to recover "
1050 "an error on the device\n");
1051 QETH_DBF_MESSAGE(2, "%s sense data available. cstat "
1052 "0x%X dstat 0x%X\n",
1053 dev_name(&channel
->ccwdev
->dev
), cstat
, dstat
);
1054 print_hex_dump(KERN_WARNING
, "qeth: irb ",
1055 DUMP_PREFIX_OFFSET
, 16, 1, irb
, 32, 1);
1056 print_hex_dump(KERN_WARNING
, "qeth: sense data ",
1057 DUMP_PREFIX_OFFSET
, 16, 1, irb
->ecw
, 32, 1);
1059 if (intparm
== QETH_RCD_PARM
) {
1060 channel
->state
= CH_STATE_DOWN
;
1063 rc
= qeth_get_problem(cdev
, irb
);
1065 qeth_clear_ipacmd_list(card
);
1066 qeth_schedule_recovery(card
);
1071 if (intparm
== QETH_RCD_PARM
) {
1072 channel
->state
= CH_STATE_RCD_DONE
;
1076 buffer
= (struct qeth_cmd_buffer
*) __va((addr_t
)intparm
);
1077 buffer
->state
= BUF_STATE_PROCESSED
;
1079 if (channel
== &card
->data
)
1081 if (channel
== &card
->read
&&
1082 channel
->state
== CH_STATE_UP
)
1083 qeth_issue_next_read(card
);
1086 index
= channel
->buf_no
;
1087 while (iob
[index
].state
== BUF_STATE_PROCESSED
) {
1088 if (iob
[index
].callback
!= NULL
)
1089 iob
[index
].callback(channel
, iob
+ index
);
1091 index
= (index
+ 1) % QETH_CMD_BUFFER_NO
;
1093 channel
->buf_no
= index
;
1095 wake_up(&card
->wait_q
);
1099 static void qeth_notify_skbs(struct qeth_qdio_out_q
*q
,
1100 struct qeth_qdio_out_buffer
*buf
,
1101 enum iucv_tx_notify notification
)
1103 struct sk_buff
*skb
;
1105 if (skb_queue_empty(&buf
->skb_list
))
1107 skb
= skb_peek(&buf
->skb_list
);
1109 QETH_CARD_TEXT_(q
->card
, 5, "skbn%d", notification
);
1110 QETH_CARD_TEXT_(q
->card
, 5, "%lx", (long) skb
);
1111 if (skb
->protocol
== ETH_P_AF_IUCV
) {
1113 struct iucv_sock
*iucv
= iucv_sk(skb
->sk
);
1114 iucv
->sk_txnotify(skb
, notification
);
1117 if (skb_queue_is_last(&buf
->skb_list
, skb
))
1120 skb
= skb_queue_next(&buf
->skb_list
, skb
);
1126 static void qeth_release_skbs(struct qeth_qdio_out_buffer
*buf
)
1128 struct sk_buff
*skb
;
1129 struct iucv_sock
*iucv
;
1130 int notify_general_error
= 0;
1132 if (atomic_read(&buf
->state
) == QETH_QDIO_BUF_PENDING
)
1133 notify_general_error
= 1;
1135 /* release may never happen from within CQ tasklet scope */
1136 BUG_ON(atomic_read(&buf
->state
) == QETH_QDIO_BUF_IN_CQ
);
1138 skb
= skb_dequeue(&buf
->skb_list
);
1140 QETH_CARD_TEXT(buf
->q
->card
, 5, "skbr");
1141 QETH_CARD_TEXT_(buf
->q
->card
, 5, "%lx", (long) skb
);
1142 if (notify_general_error
&& skb
->protocol
== ETH_P_AF_IUCV
) {
1144 iucv
= iucv_sk(skb
->sk
);
1145 iucv
->sk_txnotify(skb
, TX_NOTIFY_GENERALERROR
);
1148 atomic_dec(&skb
->users
);
1149 dev_kfree_skb_any(skb
);
1150 skb
= skb_dequeue(&buf
->skb_list
);
1154 static void qeth_clear_output_buffer(struct qeth_qdio_out_q
*queue
,
1155 struct qeth_qdio_out_buffer
*buf
,
1156 enum qeth_qdio_buffer_states newbufstate
)
1160 /* is PCI flag set on buffer? */
1161 if (buf
->buffer
->element
[0].sflags
& SBAL_SFLAGS0_PCI_REQ
)
1162 atomic_dec(&queue
->set_pci_flags_count
);
1164 if (newbufstate
== QETH_QDIO_BUF_EMPTY
) {
1165 qeth_release_skbs(buf
);
1167 for (i
= 0; i
< QETH_MAX_BUFFER_ELEMENTS(queue
->card
); ++i
) {
1168 if (buf
->buffer
->element
[i
].addr
&& buf
->is_header
[i
])
1169 kmem_cache_free(qeth_core_header_cache
,
1170 buf
->buffer
->element
[i
].addr
);
1171 buf
->is_header
[i
] = 0;
1172 buf
->buffer
->element
[i
].length
= 0;
1173 buf
->buffer
->element
[i
].addr
= NULL
;
1174 buf
->buffer
->element
[i
].eflags
= 0;
1175 buf
->buffer
->element
[i
].sflags
= 0;
1177 buf
->buffer
->element
[15].eflags
= 0;
1178 buf
->buffer
->element
[15].sflags
= 0;
1179 buf
->next_element_to_fill
= 0;
1180 atomic_set(&buf
->state
, newbufstate
);
1183 static void qeth_clear_outq_buffers(struct qeth_qdio_out_q
*q
, int free
)
1187 for (j
= 0; j
< QDIO_MAX_BUFFERS_PER_Q
; ++j
) {
1190 qeth_cleanup_handled_pending(q
, j
, 1);
1191 qeth_clear_output_buffer(q
, q
->bufs
[j
], QETH_QDIO_BUF_EMPTY
);
1193 kmem_cache_free(qeth_qdio_outbuf_cache
, q
->bufs
[j
]);
1199 void qeth_clear_qdio_buffers(struct qeth_card
*card
)
1203 QETH_CARD_TEXT(card
, 2, "clearqdbf");
1204 /* clear outbound buffers to free skbs */
1205 for (i
= 0; i
< card
->qdio
.no_out_queues
; ++i
) {
1206 if (card
->qdio
.out_qs
[i
]) {
1207 qeth_clear_outq_buffers(card
->qdio
.out_qs
[i
], 0);
1211 EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers
);
1213 static void qeth_free_buffer_pool(struct qeth_card
*card
)
1215 struct qeth_buffer_pool_entry
*pool_entry
, *tmp
;
1217 list_for_each_entry_safe(pool_entry
, tmp
,
1218 &card
->qdio
.init_pool
.entry_list
, init_list
){
1219 for (i
= 0; i
< QETH_MAX_BUFFER_ELEMENTS(card
); ++i
)
1220 free_page((unsigned long)pool_entry
->elements
[i
]);
1221 list_del(&pool_entry
->init_list
);
1226 static void qeth_free_qdio_buffers(struct qeth_card
*card
)
1230 if (atomic_xchg(&card
->qdio
.state
, QETH_QDIO_UNINITIALIZED
) ==
1231 QETH_QDIO_UNINITIALIZED
)
1235 cancel_delayed_work_sync(&card
->buffer_reclaim_work
);
1236 for (j
= 0; j
< QDIO_MAX_BUFFERS_PER_Q
; ++j
)
1237 dev_kfree_skb_any(card
->qdio
.in_q
->bufs
[j
].rx_skb
);
1238 kfree(card
->qdio
.in_q
);
1239 card
->qdio
.in_q
= NULL
;
1240 /* inbound buffer pool */
1241 qeth_free_buffer_pool(card
);
1242 /* free outbound qdio_qs */
1243 if (card
->qdio
.out_qs
) {
1244 for (i
= 0; i
< card
->qdio
.no_out_queues
; ++i
) {
1245 qeth_clear_outq_buffers(card
->qdio
.out_qs
[i
], 1);
1246 kfree(card
->qdio
.out_qs
[i
]);
1248 kfree(card
->qdio
.out_qs
);
1249 card
->qdio
.out_qs
= NULL
;
1253 static void qeth_clean_channel(struct qeth_channel
*channel
)
1257 QETH_DBF_TEXT(SETUP
, 2, "freech");
1258 for (cnt
= 0; cnt
< QETH_CMD_BUFFER_NO
; cnt
++)
1259 kfree(channel
->iob
[cnt
].data
);
1262 static void qeth_get_channel_path_desc(struct qeth_card
*card
)
1264 struct ccw_device
*ccwdev
;
1265 struct channelPath_dsc
{
1276 QETH_DBF_TEXT(SETUP
, 2, "chp_desc");
1278 ccwdev
= card
->data
.ccwdev
;
1279 chp_dsc
= (struct channelPath_dsc
*)ccw_device_get_chp_desc(ccwdev
, 0);
1280 if (chp_dsc
!= NULL
) {
1281 if (card
->info
.type
!= QETH_CARD_TYPE_IQD
) {
1282 /* CHPP field bit 6 == 1 -> single queue */
1283 if ((chp_dsc
->chpp
& 0x02) == 0x02) {
1284 if ((atomic_read(&card
->qdio
.state
) !=
1285 QETH_QDIO_UNINITIALIZED
) &&
1286 (card
->qdio
.no_out_queues
== 4))
1287 /* change from 4 to 1 outbound queues */
1288 qeth_free_qdio_buffers(card
);
1289 card
->qdio
.no_out_queues
= 1;
1290 if (card
->qdio
.default_out_queue
!= 0)
1291 dev_info(&card
->gdev
->dev
,
1292 "Priority Queueing not supported\n");
1293 card
->qdio
.default_out_queue
= 0;
1295 if ((atomic_read(&card
->qdio
.state
) !=
1296 QETH_QDIO_UNINITIALIZED
) &&
1297 (card
->qdio
.no_out_queues
== 1)) {
1298 /* change from 1 to 4 outbound queues */
1299 qeth_free_qdio_buffers(card
);
1300 card
->qdio
.default_out_queue
= 2;
1302 card
->qdio
.no_out_queues
= 4;
1305 card
->info
.func_level
= 0x4100 + chp_dsc
->desc
;
1308 QETH_DBF_TEXT_(SETUP
, 2, "nr:%x", card
->qdio
.no_out_queues
);
1309 QETH_DBF_TEXT_(SETUP
, 2, "lvl:%02x", card
->info
.func_level
);
1313 static void qeth_init_qdio_info(struct qeth_card
*card
)
1315 QETH_DBF_TEXT(SETUP
, 4, "intqdinf");
1316 atomic_set(&card
->qdio
.state
, QETH_QDIO_UNINITIALIZED
);
1318 card
->qdio
.in_buf_size
= QETH_IN_BUF_SIZE_DEFAULT
;
1319 if (card
->info
.type
== QETH_CARD_TYPE_IQD
)
1320 card
->qdio
.init_pool
.buf_count
= QETH_IN_BUF_COUNT_HSDEFAULT
;
1322 card
->qdio
.init_pool
.buf_count
= QETH_IN_BUF_COUNT_DEFAULT
;
1323 card
->qdio
.in_buf_pool
.buf_count
= card
->qdio
.init_pool
.buf_count
;
1324 INIT_LIST_HEAD(&card
->qdio
.in_buf_pool
.entry_list
);
1325 INIT_LIST_HEAD(&card
->qdio
.init_pool
.entry_list
);
1328 static void qeth_set_intial_options(struct qeth_card
*card
)
1330 card
->options
.route4
.type
= NO_ROUTER
;
1331 card
->options
.route6
.type
= NO_ROUTER
;
1332 card
->options
.broadcast_mode
= QETH_TR_BROADCAST_ALLRINGS
;
1333 card
->options
.macaddr_mode
= QETH_TR_MACADDR_NONCANONICAL
;
1334 card
->options
.fake_broadcast
= 0;
1335 card
->options
.add_hhlen
= DEFAULT_ADD_HHLEN
;
1336 card
->options
.performance_stats
= 0;
1337 card
->options
.rx_sg_cb
= QETH_RX_SG_CB
;
1338 card
->options
.isolation
= ISOLATION_MODE_NONE
;
1339 card
->options
.cq
= QETH_CQ_DISABLED
;
1342 static int qeth_do_start_thread(struct qeth_card
*card
, unsigned long thread
)
1344 unsigned long flags
;
1347 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
1348 QETH_CARD_TEXT_(card
, 4, " %02x%02x%02x",
1349 (u8
) card
->thread_start_mask
,
1350 (u8
) card
->thread_allowed_mask
,
1351 (u8
) card
->thread_running_mask
);
1352 rc
= (card
->thread_start_mask
& thread
);
1353 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
1357 static void qeth_start_kernel_thread(struct work_struct
*work
)
1359 struct task_struct
*ts
;
1360 struct qeth_card
*card
= container_of(work
, struct qeth_card
,
1361 kernel_thread_starter
);
1362 QETH_CARD_TEXT(card
, 2, "strthrd");
1364 if (card
->read
.state
!= CH_STATE_UP
&&
1365 card
->write
.state
!= CH_STATE_UP
)
1367 if (qeth_do_start_thread(card
, QETH_RECOVER_THREAD
)) {
1368 ts
= kthread_run(card
->discipline
.recover
, (void *)card
,
1371 qeth_clear_thread_start_bit(card
, QETH_RECOVER_THREAD
);
1372 qeth_clear_thread_running_bit(card
,
1373 QETH_RECOVER_THREAD
);
1378 static int qeth_setup_card(struct qeth_card
*card
)
1381 QETH_DBF_TEXT(SETUP
, 2, "setupcrd");
1382 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
1384 card
->read
.state
= CH_STATE_DOWN
;
1385 card
->write
.state
= CH_STATE_DOWN
;
1386 card
->data
.state
= CH_STATE_DOWN
;
1387 card
->state
= CARD_STATE_DOWN
;
1388 card
->lan_online
= 0;
1389 card
->read_or_write_problem
= 0;
1391 spin_lock_init(&card
->vlanlock
);
1392 spin_lock_init(&card
->mclock
);
1393 spin_lock_init(&card
->lock
);
1394 spin_lock_init(&card
->ip_lock
);
1395 spin_lock_init(&card
->thread_mask_lock
);
1396 mutex_init(&card
->conf_mutex
);
1397 mutex_init(&card
->discipline_mutex
);
1398 card
->thread_start_mask
= 0;
1399 card
->thread_allowed_mask
= 0;
1400 card
->thread_running_mask
= 0;
1401 INIT_WORK(&card
->kernel_thread_starter
, qeth_start_kernel_thread
);
1402 INIT_LIST_HEAD(&card
->ip_list
);
1403 INIT_LIST_HEAD(card
->ip_tbd_list
);
1404 INIT_LIST_HEAD(&card
->cmd_waiter_list
);
1405 init_waitqueue_head(&card
->wait_q
);
1406 /* initial options */
1407 qeth_set_intial_options(card
);
1408 /* IP address takeover */
1409 INIT_LIST_HEAD(&card
->ipato
.entries
);
1410 card
->ipato
.enabled
= 0;
1411 card
->ipato
.invert4
= 0;
1412 card
->ipato
.invert6
= 0;
1413 /* init QDIO stuff */
1414 qeth_init_qdio_info(card
);
1415 INIT_DELAYED_WORK(&card
->buffer_reclaim_work
, qeth_buffer_reclaim_work
);
1419 static void qeth_core_sl_print(struct seq_file
*m
, struct service_level
*slr
)
1421 struct qeth_card
*card
= container_of(slr
, struct qeth_card
,
1422 qeth_service_level
);
1423 if (card
->info
.mcl_level
[0])
1424 seq_printf(m
, "qeth: %s firmware level %s\n",
1425 CARD_BUS_ID(card
), card
->info
.mcl_level
);
1428 static struct qeth_card
*qeth_alloc_card(void)
1430 struct qeth_card
*card
;
1432 QETH_DBF_TEXT(SETUP
, 2, "alloccrd");
1433 card
= kzalloc(sizeof(struct qeth_card
), GFP_DMA
|GFP_KERNEL
);
1436 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
1437 card
->ip_tbd_list
= kzalloc(sizeof(struct list_head
), GFP_KERNEL
);
1438 if (!card
->ip_tbd_list
) {
1439 QETH_DBF_TEXT(SETUP
, 0, "iptbdnom");
1442 if (qeth_setup_channel(&card
->read
))
1444 if (qeth_setup_channel(&card
->write
))
1446 card
->options
.layer2
= -1;
1447 card
->qeth_service_level
.seq_print
= qeth_core_sl_print
;
1448 register_service_level(&card
->qeth_service_level
);
1452 qeth_clean_channel(&card
->read
);
1454 kfree(card
->ip_tbd_list
);
1461 static int qeth_determine_card_type(struct qeth_card
*card
)
1465 QETH_DBF_TEXT(SETUP
, 2, "detcdtyp");
1467 card
->qdio
.do_prio_queueing
= QETH_PRIOQ_DEFAULT
;
1468 card
->qdio
.default_out_queue
= QETH_DEFAULT_QUEUE
;
1469 while (known_devices
[i
][QETH_DEV_MODEL_IND
]) {
1470 if ((CARD_RDEV(card
)->id
.dev_type
==
1471 known_devices
[i
][QETH_DEV_TYPE_IND
]) &&
1472 (CARD_RDEV(card
)->id
.dev_model
==
1473 known_devices
[i
][QETH_DEV_MODEL_IND
])) {
1474 card
->info
.type
= known_devices
[i
][QETH_DEV_MODEL_IND
];
1475 card
->qdio
.no_out_queues
=
1476 known_devices
[i
][QETH_QUEUE_NO_IND
];
1477 card
->qdio
.no_in_queues
= 1;
1478 card
->info
.is_multicast_different
=
1479 known_devices
[i
][QETH_MULTICAST_IND
];
1480 qeth_get_channel_path_desc(card
);
1485 card
->info
.type
= QETH_CARD_TYPE_UNKNOWN
;
1486 dev_err(&card
->gdev
->dev
, "The adapter hardware is of an "
1491 static int qeth_clear_channel(struct qeth_channel
*channel
)
1493 unsigned long flags
;
1494 struct qeth_card
*card
;
1497 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1498 QETH_CARD_TEXT(card
, 3, "clearch");
1499 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
1500 rc
= ccw_device_clear(channel
->ccwdev
, QETH_CLEAR_CHANNEL_PARM
);
1501 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
1505 rc
= wait_event_interruptible_timeout(card
->wait_q
,
1506 channel
->state
== CH_STATE_STOPPED
, QETH_TIMEOUT
);
1507 if (rc
== -ERESTARTSYS
)
1509 if (channel
->state
!= CH_STATE_STOPPED
)
1511 channel
->state
= CH_STATE_DOWN
;
1515 static int qeth_halt_channel(struct qeth_channel
*channel
)
1517 unsigned long flags
;
1518 struct qeth_card
*card
;
1521 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1522 QETH_CARD_TEXT(card
, 3, "haltch");
1523 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
1524 rc
= ccw_device_halt(channel
->ccwdev
, QETH_HALT_CHANNEL_PARM
);
1525 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
1529 rc
= wait_event_interruptible_timeout(card
->wait_q
,
1530 channel
->state
== CH_STATE_HALTED
, QETH_TIMEOUT
);
1531 if (rc
== -ERESTARTSYS
)
1533 if (channel
->state
!= CH_STATE_HALTED
)
1538 static int qeth_halt_channels(struct qeth_card
*card
)
1540 int rc1
= 0, rc2
= 0, rc3
= 0;
1542 QETH_CARD_TEXT(card
, 3, "haltchs");
1543 rc1
= qeth_halt_channel(&card
->read
);
1544 rc2
= qeth_halt_channel(&card
->write
);
1545 rc3
= qeth_halt_channel(&card
->data
);
1553 static int qeth_clear_channels(struct qeth_card
*card
)
1555 int rc1
= 0, rc2
= 0, rc3
= 0;
1557 QETH_CARD_TEXT(card
, 3, "clearchs");
1558 rc1
= qeth_clear_channel(&card
->read
);
1559 rc2
= qeth_clear_channel(&card
->write
);
1560 rc3
= qeth_clear_channel(&card
->data
);
1568 static int qeth_clear_halt_card(struct qeth_card
*card
, int halt
)
1572 QETH_CARD_TEXT(card
, 3, "clhacrd");
1575 rc
= qeth_halt_channels(card
);
1578 return qeth_clear_channels(card
);
1581 int qeth_qdio_clear_card(struct qeth_card
*card
, int use_halt
)
1585 QETH_CARD_TEXT(card
, 3, "qdioclr");
1586 switch (atomic_cmpxchg(&card
->qdio
.state
, QETH_QDIO_ESTABLISHED
,
1587 QETH_QDIO_CLEANING
)) {
1588 case QETH_QDIO_ESTABLISHED
:
1589 if (card
->info
.type
== QETH_CARD_TYPE_IQD
)
1590 rc
= qdio_shutdown(CARD_DDEV(card
),
1591 QDIO_FLAG_CLEANUP_USING_HALT
);
1593 rc
= qdio_shutdown(CARD_DDEV(card
),
1594 QDIO_FLAG_CLEANUP_USING_CLEAR
);
1596 QETH_CARD_TEXT_(card
, 3, "1err%d", rc
);
1597 qdio_free(CARD_DDEV(card
));
1598 atomic_set(&card
->qdio
.state
, QETH_QDIO_ALLOCATED
);
1600 case QETH_QDIO_CLEANING
:
1605 rc
= qeth_clear_halt_card(card
, use_halt
);
1607 QETH_CARD_TEXT_(card
, 3, "2err%d", rc
);
1608 card
->state
= CARD_STATE_DOWN
;
1611 EXPORT_SYMBOL_GPL(qeth_qdio_clear_card
);
1613 static int qeth_read_conf_data(struct qeth_card
*card
, void **buffer
,
1619 struct qeth_channel
*channel
= &card
->data
;
1620 unsigned long flags
;
1623 * scan for RCD command in extended SenseID data
1625 ciw
= ccw_device_get_ciw(channel
->ccwdev
, CIW_TYPE_RCD
);
1626 if (!ciw
|| ciw
->cmd
== 0)
1628 rcd_buf
= kzalloc(ciw
->count
, GFP_KERNEL
| GFP_DMA
);
1632 channel
->ccw
.cmd_code
= ciw
->cmd
;
1633 channel
->ccw
.cda
= (__u32
) __pa(rcd_buf
);
1634 channel
->ccw
.count
= ciw
->count
;
1635 channel
->ccw
.flags
= CCW_FLAG_SLI
;
1636 channel
->state
= CH_STATE_RCD
;
1637 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
1638 ret
= ccw_device_start_timeout(channel
->ccwdev
, &channel
->ccw
,
1639 QETH_RCD_PARM
, LPM_ANYPATH
, 0,
1641 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
1643 wait_event(card
->wait_q
,
1644 (channel
->state
== CH_STATE_RCD_DONE
||
1645 channel
->state
== CH_STATE_DOWN
));
1646 if (channel
->state
== CH_STATE_DOWN
)
1649 channel
->state
= CH_STATE_DOWN
;
1655 *length
= ciw
->count
;
1661 static void qeth_configure_unitaddr(struct qeth_card
*card
, char *prcd
)
1663 QETH_DBF_TEXT(SETUP
, 2, "cfgunit");
1664 card
->info
.chpid
= prcd
[30];
1665 card
->info
.unit_addr2
= prcd
[31];
1666 card
->info
.cula
= prcd
[63];
1667 card
->info
.guestlan
= ((prcd
[0x10] == _ascebc
['V']) &&
1668 (prcd
[0x11] == _ascebc
['M']));
1671 static void qeth_configure_blkt_default(struct qeth_card
*card
, char *prcd
)
1673 QETH_DBF_TEXT(SETUP
, 2, "cfgblkt");
1675 if (prcd
[74] == 0xF0 && prcd
[75] == 0xF0 && prcd
[76] == 0xF5) {
1676 card
->info
.blkt
.time_total
= 250;
1677 card
->info
.blkt
.inter_packet
= 5;
1678 card
->info
.blkt
.inter_packet_jumbo
= 15;
1680 card
->info
.blkt
.time_total
= 0;
1681 card
->info
.blkt
.inter_packet
= 0;
1682 card
->info
.blkt
.inter_packet_jumbo
= 0;
1686 static void qeth_init_tokens(struct qeth_card
*card
)
1688 card
->token
.issuer_rm_w
= 0x00010103UL
;
1689 card
->token
.cm_filter_w
= 0x00010108UL
;
1690 card
->token
.cm_connection_w
= 0x0001010aUL
;
1691 card
->token
.ulp_filter_w
= 0x0001010bUL
;
1692 card
->token
.ulp_connection_w
= 0x0001010dUL
;
1695 static void qeth_init_func_level(struct qeth_card
*card
)
1697 switch (card
->info
.type
) {
1698 case QETH_CARD_TYPE_IQD
:
1699 card
->info
.func_level
= QETH_IDX_FUNC_LEVEL_IQD
;
1701 case QETH_CARD_TYPE_OSD
:
1702 case QETH_CARD_TYPE_OSN
:
1703 card
->info
.func_level
= QETH_IDX_FUNC_LEVEL_OSD
;
1710 static int qeth_idx_activate_get_answer(struct qeth_channel
*channel
,
1711 void (*idx_reply_cb
)(struct qeth_channel
*,
1712 struct qeth_cmd_buffer
*))
1714 struct qeth_cmd_buffer
*iob
;
1715 unsigned long flags
;
1717 struct qeth_card
*card
;
1719 QETH_DBF_TEXT(SETUP
, 2, "idxanswr");
1720 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1721 iob
= qeth_get_buffer(channel
);
1722 iob
->callback
= idx_reply_cb
;
1723 memcpy(&channel
->ccw
, READ_CCW
, sizeof(struct ccw1
));
1724 channel
->ccw
.count
= QETH_BUFSIZE
;
1725 channel
->ccw
.cda
= (__u32
) __pa(iob
->data
);
1727 wait_event(card
->wait_q
,
1728 atomic_cmpxchg(&channel
->irq_pending
, 0, 1) == 0);
1729 QETH_DBF_TEXT(SETUP
, 6, "noirqpnd");
1730 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
1731 rc
= ccw_device_start(channel
->ccwdev
,
1732 &channel
->ccw
, (addr_t
) iob
, 0, 0);
1733 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
1736 QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc
);
1737 QETH_DBF_TEXT_(SETUP
, 2, "2err%d", rc
);
1738 atomic_set(&channel
->irq_pending
, 0);
1739 wake_up(&card
->wait_q
);
1742 rc
= wait_event_interruptible_timeout(card
->wait_q
,
1743 channel
->state
== CH_STATE_UP
, QETH_TIMEOUT
);
1744 if (rc
== -ERESTARTSYS
)
1746 if (channel
->state
!= CH_STATE_UP
) {
1748 QETH_DBF_TEXT_(SETUP
, 2, "3err%d", rc
);
1749 qeth_clear_cmd_buffers(channel
);
1755 static int qeth_idx_activate_channel(struct qeth_channel
*channel
,
1756 void (*idx_reply_cb
)(struct qeth_channel
*,
1757 struct qeth_cmd_buffer
*))
1759 struct qeth_card
*card
;
1760 struct qeth_cmd_buffer
*iob
;
1761 unsigned long flags
;
1765 struct ccw_dev_id temp_devid
;
1767 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1769 QETH_DBF_TEXT(SETUP
, 2, "idxactch");
1771 iob
= qeth_get_buffer(channel
);
1772 iob
->callback
= idx_reply_cb
;
1773 memcpy(&channel
->ccw
, WRITE_CCW
, sizeof(struct ccw1
));
1774 channel
->ccw
.count
= IDX_ACTIVATE_SIZE
;
1775 channel
->ccw
.cda
= (__u32
) __pa(iob
->data
);
1776 if (channel
== &card
->write
) {
1777 memcpy(iob
->data
, IDX_ACTIVATE_WRITE
, IDX_ACTIVATE_SIZE
);
1778 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob
->data
),
1779 &card
->seqno
.trans_hdr
, QETH_SEQ_NO_LENGTH
);
1780 card
->seqno
.trans_hdr
++;
1782 memcpy(iob
->data
, IDX_ACTIVATE_READ
, IDX_ACTIVATE_SIZE
);
1783 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob
->data
),
1784 &card
->seqno
.trans_hdr
, QETH_SEQ_NO_LENGTH
);
1786 tmp
= ((__u8
)card
->info
.portno
) | 0x80;
1787 memcpy(QETH_IDX_ACT_PNO(iob
->data
), &tmp
, 1);
1788 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob
->data
),
1789 &card
->token
.issuer_rm_w
, QETH_MPC_TOKEN_LENGTH
);
1790 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob
->data
),
1791 &card
->info
.func_level
, sizeof(__u16
));
1792 ccw_device_get_id(CARD_DDEV(card
), &temp_devid
);
1793 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob
->data
), &temp_devid
.devno
, 2);
1794 temp
= (card
->info
.cula
<< 8) + card
->info
.unit_addr2
;
1795 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob
->data
), &temp
, 2);
1797 wait_event(card
->wait_q
,
1798 atomic_cmpxchg(&channel
->irq_pending
, 0, 1) == 0);
1799 QETH_DBF_TEXT(SETUP
, 6, "noirqpnd");
1800 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
1801 rc
= ccw_device_start(channel
->ccwdev
,
1802 &channel
->ccw
, (addr_t
) iob
, 0, 0);
1803 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
1806 QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n",
1808 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
1809 atomic_set(&channel
->irq_pending
, 0);
1810 wake_up(&card
->wait_q
);
1813 rc
= wait_event_interruptible_timeout(card
->wait_q
,
1814 channel
->state
== CH_STATE_ACTIVATING
, QETH_TIMEOUT
);
1815 if (rc
== -ERESTARTSYS
)
1817 if (channel
->state
!= CH_STATE_ACTIVATING
) {
1818 dev_warn(&channel
->ccwdev
->dev
, "The qeth device driver"
1819 " failed to recover an error on the device\n");
1820 QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n",
1821 dev_name(&channel
->ccwdev
->dev
));
1822 QETH_DBF_TEXT_(SETUP
, 2, "2err%d", -ETIME
);
1823 qeth_clear_cmd_buffers(channel
);
1826 return qeth_idx_activate_get_answer(channel
, idx_reply_cb
);
1829 static int qeth_peer_func_level(int level
)
1831 if ((level
& 0xff) == 8)
1832 return (level
& 0xff) + 0x400;
1833 if (((level
>> 8) & 3) == 1)
1834 return (level
& 0xff) + 0x200;
1838 static void qeth_idx_write_cb(struct qeth_channel
*channel
,
1839 struct qeth_cmd_buffer
*iob
)
1841 struct qeth_card
*card
;
1844 QETH_DBF_TEXT(SETUP
, 2, "idxwrcb");
1846 if (channel
->state
== CH_STATE_DOWN
) {
1847 channel
->state
= CH_STATE_ACTIVATING
;
1850 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1852 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob
->data
))) {
1853 if (QETH_IDX_ACT_CAUSE_CODE(iob
->data
) == QETH_IDX_ACT_ERR_EXCL
)
1854 dev_err(&card
->write
.ccwdev
->dev
,
1855 "The adapter is used exclusively by another "
1858 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel:"
1859 " negative reply\n",
1860 dev_name(&card
->write
.ccwdev
->dev
));
1863 memcpy(&temp
, QETH_IDX_ACT_FUNC_LEVEL(iob
->data
), 2);
1864 if ((temp
& ~0x0100) != qeth_peer_func_level(card
->info
.func_level
)) {
1865 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel: "
1866 "function level mismatch (sent: 0x%x, received: "
1867 "0x%x)\n", dev_name(&card
->write
.ccwdev
->dev
),
1868 card
->info
.func_level
, temp
);
1871 channel
->state
= CH_STATE_UP
;
1873 qeth_release_buffer(channel
, iob
);
1876 static void qeth_idx_read_cb(struct qeth_channel
*channel
,
1877 struct qeth_cmd_buffer
*iob
)
1879 struct qeth_card
*card
;
1882 QETH_DBF_TEXT(SETUP
, 2, "idxrdcb");
1883 if (channel
->state
== CH_STATE_DOWN
) {
1884 channel
->state
= CH_STATE_ACTIVATING
;
1888 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1889 if (qeth_check_idx_response(card
, iob
->data
))
1892 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob
->data
))) {
1893 switch (QETH_IDX_ACT_CAUSE_CODE(iob
->data
)) {
1894 case QETH_IDX_ACT_ERR_EXCL
:
1895 dev_err(&card
->write
.ccwdev
->dev
,
1896 "The adapter is used exclusively by another "
1899 case QETH_IDX_ACT_ERR_AUTH
:
1900 case QETH_IDX_ACT_ERR_AUTH_USER
:
1901 dev_err(&card
->read
.ccwdev
->dev
,
1902 "Setting the device online failed because of "
1903 "insufficient authorization\n");
1906 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel:"
1907 " negative reply\n",
1908 dev_name(&card
->read
.ccwdev
->dev
));
1910 QETH_CARD_TEXT_(card
, 2, "idxread%c",
1911 QETH_IDX_ACT_CAUSE_CODE(iob
->data
));
1916 * * temporary fix for microcode bug
1917 * * to revert it,replace OR by AND
1919 if ((!QETH_IDX_NO_PORTNAME_REQUIRED(iob
->data
)) ||
1920 (card
->info
.type
== QETH_CARD_TYPE_OSD
))
1921 card
->info
.portname_required
= 1;
1923 memcpy(&temp
, QETH_IDX_ACT_FUNC_LEVEL(iob
->data
), 2);
1924 if (temp
!= qeth_peer_func_level(card
->info
.func_level
)) {
1925 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel: function "
1926 "level mismatch (sent: 0x%x, received: 0x%x)\n",
1927 dev_name(&card
->read
.ccwdev
->dev
),
1928 card
->info
.func_level
, temp
);
1931 memcpy(&card
->token
.issuer_rm_r
,
1932 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob
->data
),
1933 QETH_MPC_TOKEN_LENGTH
);
1934 memcpy(&card
->info
.mcl_level
[0],
1935 QETH_IDX_REPLY_LEVEL(iob
->data
), QETH_MCL_LENGTH
);
1936 channel
->state
= CH_STATE_UP
;
1938 qeth_release_buffer(channel
, iob
);
1941 void qeth_prepare_control_data(struct qeth_card
*card
, int len
,
1942 struct qeth_cmd_buffer
*iob
)
1944 qeth_setup_ccw(&card
->write
, iob
->data
, len
);
1945 iob
->callback
= qeth_release_buffer
;
1947 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob
->data
),
1948 &card
->seqno
.trans_hdr
, QETH_SEQ_NO_LENGTH
);
1949 card
->seqno
.trans_hdr
++;
1950 memcpy(QETH_PDU_HEADER_SEQ_NO(iob
->data
),
1951 &card
->seqno
.pdu_hdr
, QETH_SEQ_NO_LENGTH
);
1952 card
->seqno
.pdu_hdr
++;
1953 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob
->data
),
1954 &card
->seqno
.pdu_hdr_ack
, QETH_SEQ_NO_LENGTH
);
1955 QETH_DBF_HEX(CTRL
, 2, iob
->data
, QETH_DBF_CTRL_LEN
);
1957 EXPORT_SYMBOL_GPL(qeth_prepare_control_data
);
1959 int qeth_send_control_data(struct qeth_card
*card
, int len
,
1960 struct qeth_cmd_buffer
*iob
,
1961 int (*reply_cb
)(struct qeth_card
*, struct qeth_reply
*,
1966 unsigned long flags
;
1967 struct qeth_reply
*reply
= NULL
;
1968 unsigned long timeout
, event_timeout
;
1969 struct qeth_ipa_cmd
*cmd
;
1971 QETH_CARD_TEXT(card
, 2, "sendctl");
1973 if (card
->read_or_write_problem
) {
1974 qeth_release_buffer(iob
->channel
, iob
);
1977 reply
= qeth_alloc_reply(card
);
1981 reply
->callback
= reply_cb
;
1982 reply
->param
= reply_param
;
1983 if (card
->state
== CARD_STATE_DOWN
)
1984 reply
->seqno
= QETH_IDX_COMMAND_SEQNO
;
1986 reply
->seqno
= card
->seqno
.ipa
++;
1987 init_waitqueue_head(&reply
->wait_q
);
1988 spin_lock_irqsave(&card
->lock
, flags
);
1989 list_add_tail(&reply
->list
, &card
->cmd_waiter_list
);
1990 spin_unlock_irqrestore(&card
->lock
, flags
);
1991 QETH_DBF_HEX(CTRL
, 2, iob
->data
, QETH_DBF_CTRL_LEN
);
1993 while (atomic_cmpxchg(&card
->write
.irq_pending
, 0, 1)) ;
1994 qeth_prepare_control_data(card
, len
, iob
);
1996 if (IS_IPA(iob
->data
))
1997 event_timeout
= QETH_IPA_TIMEOUT
;
1999 event_timeout
= QETH_TIMEOUT
;
2000 timeout
= jiffies
+ event_timeout
;
2002 QETH_CARD_TEXT(card
, 6, "noirqpnd");
2003 spin_lock_irqsave(get_ccwdev_lock(card
->write
.ccwdev
), flags
);
2004 rc
= ccw_device_start(card
->write
.ccwdev
, &card
->write
.ccw
,
2005 (addr_t
) iob
, 0, 0);
2006 spin_unlock_irqrestore(get_ccwdev_lock(card
->write
.ccwdev
), flags
);
2008 QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: "
2009 "ccw_device_start rc = %i\n",
2010 dev_name(&card
->write
.ccwdev
->dev
), rc
);
2011 QETH_CARD_TEXT_(card
, 2, " err%d", rc
);
2012 spin_lock_irqsave(&card
->lock
, flags
);
2013 list_del_init(&reply
->list
);
2014 qeth_put_reply(reply
);
2015 spin_unlock_irqrestore(&card
->lock
, flags
);
2016 qeth_release_buffer(iob
->channel
, iob
);
2017 atomic_set(&card
->write
.irq_pending
, 0);
2018 wake_up(&card
->wait_q
);
2022 /* we have only one long running ipassist, since we can ensure
2023 process context of this command we can sleep */
2024 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
2025 if ((cmd
->hdr
.command
== IPA_CMD_SETIP
) &&
2026 (cmd
->hdr
.prot_version
== QETH_PROT_IPV4
)) {
2027 if (!wait_event_timeout(reply
->wait_q
,
2028 atomic_read(&reply
->received
), event_timeout
))
2031 while (!atomic_read(&reply
->received
)) {
2032 if (time_after(jiffies
, timeout
))
2038 if (reply
->rc
== -EIO
)
2041 qeth_put_reply(reply
);
2046 spin_lock_irqsave(&reply
->card
->lock
, flags
);
2047 list_del_init(&reply
->list
);
2048 spin_unlock_irqrestore(&reply
->card
->lock
, flags
);
2049 atomic_inc(&reply
->received
);
2051 atomic_set(&card
->write
.irq_pending
, 0);
2052 qeth_release_buffer(iob
->channel
, iob
);
2053 card
->write
.buf_no
= (card
->write
.buf_no
+ 1) % QETH_CMD_BUFFER_NO
;
2055 qeth_put_reply(reply
);
2058 EXPORT_SYMBOL_GPL(qeth_send_control_data
);
2060 static int qeth_cm_enable_cb(struct qeth_card
*card
, struct qeth_reply
*reply
,
2063 struct qeth_cmd_buffer
*iob
;
2065 QETH_DBF_TEXT(SETUP
, 2, "cmenblcb");
2067 iob
= (struct qeth_cmd_buffer
*) data
;
2068 memcpy(&card
->token
.cm_filter_r
,
2069 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob
->data
),
2070 QETH_MPC_TOKEN_LENGTH
);
2071 QETH_DBF_TEXT_(SETUP
, 2, " rc%d", iob
->rc
);
2075 static int qeth_cm_enable(struct qeth_card
*card
)
2078 struct qeth_cmd_buffer
*iob
;
2080 QETH_DBF_TEXT(SETUP
, 2, "cmenable");
2082 iob
= qeth_wait_for_buffer(&card
->write
);
2083 memcpy(iob
->data
, CM_ENABLE
, CM_ENABLE_SIZE
);
2084 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob
->data
),
2085 &card
->token
.issuer_rm_r
, QETH_MPC_TOKEN_LENGTH
);
2086 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob
->data
),
2087 &card
->token
.cm_filter_w
, QETH_MPC_TOKEN_LENGTH
);
2089 rc
= qeth_send_control_data(card
, CM_ENABLE_SIZE
, iob
,
2090 qeth_cm_enable_cb
, NULL
);
2094 static int qeth_cm_setup_cb(struct qeth_card
*card
, struct qeth_reply
*reply
,
2098 struct qeth_cmd_buffer
*iob
;
2100 QETH_DBF_TEXT(SETUP
, 2, "cmsetpcb");
2102 iob
= (struct qeth_cmd_buffer
*) data
;
2103 memcpy(&card
->token
.cm_connection_r
,
2104 QETH_CM_SETUP_RESP_DEST_ADDR(iob
->data
),
2105 QETH_MPC_TOKEN_LENGTH
);
2106 QETH_DBF_TEXT_(SETUP
, 2, " rc%d", iob
->rc
);
2110 static int qeth_cm_setup(struct qeth_card
*card
)
2113 struct qeth_cmd_buffer
*iob
;
2115 QETH_DBF_TEXT(SETUP
, 2, "cmsetup");
2117 iob
= qeth_wait_for_buffer(&card
->write
);
2118 memcpy(iob
->data
, CM_SETUP
, CM_SETUP_SIZE
);
2119 memcpy(QETH_CM_SETUP_DEST_ADDR(iob
->data
),
2120 &card
->token
.issuer_rm_r
, QETH_MPC_TOKEN_LENGTH
);
2121 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob
->data
),
2122 &card
->token
.cm_connection_w
, QETH_MPC_TOKEN_LENGTH
);
2123 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob
->data
),
2124 &card
->token
.cm_filter_r
, QETH_MPC_TOKEN_LENGTH
);
2125 rc
= qeth_send_control_data(card
, CM_SETUP_SIZE
, iob
,
2126 qeth_cm_setup_cb
, NULL
);
2131 static inline int qeth_get_initial_mtu_for_card(struct qeth_card
*card
)
2133 switch (card
->info
.type
) {
2134 case QETH_CARD_TYPE_UNKNOWN
:
2136 case QETH_CARD_TYPE_IQD
:
2137 return card
->info
.max_mtu
;
2138 case QETH_CARD_TYPE_OSD
:
2139 switch (card
->info
.link_type
) {
2140 case QETH_LINK_TYPE_HSTR
:
2141 case QETH_LINK_TYPE_LANE_TR
:
2146 case QETH_CARD_TYPE_OSM
:
2147 case QETH_CARD_TYPE_OSX
:
2154 static inline int qeth_get_mtu_outof_framesize(int framesize
)
2156 switch (framesize
) {
2170 static inline int qeth_mtu_is_valid(struct qeth_card
*card
, int mtu
)
2172 switch (card
->info
.type
) {
2173 case QETH_CARD_TYPE_OSD
:
2174 case QETH_CARD_TYPE_OSM
:
2175 case QETH_CARD_TYPE_OSX
:
2176 case QETH_CARD_TYPE_IQD
:
2177 return ((mtu
>= 576) &&
2178 (mtu
<= card
->info
.max_mtu
));
2179 case QETH_CARD_TYPE_OSN
:
2180 case QETH_CARD_TYPE_UNKNOWN
:
2186 static int qeth_ulp_enable_cb(struct qeth_card
*card
, struct qeth_reply
*reply
,
2190 __u16 mtu
, framesize
;
2193 struct qeth_cmd_buffer
*iob
;
2195 QETH_DBF_TEXT(SETUP
, 2, "ulpenacb");
2197 iob
= (struct qeth_cmd_buffer
*) data
;
2198 memcpy(&card
->token
.ulp_filter_r
,
2199 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob
->data
),
2200 QETH_MPC_TOKEN_LENGTH
);
2201 if (card
->info
.type
== QETH_CARD_TYPE_IQD
) {
2202 memcpy(&framesize
, QETH_ULP_ENABLE_RESP_MAX_MTU(iob
->data
), 2);
2203 mtu
= qeth_get_mtu_outof_framesize(framesize
);
2206 QETH_DBF_TEXT_(SETUP
, 2, " rc%d", iob
->rc
);
2209 if (card
->info
.initial_mtu
&& (card
->info
.initial_mtu
!= mtu
)) {
2210 /* frame size has changed */
2212 ((card
->dev
->mtu
== card
->info
.initial_mtu
) ||
2213 (card
->dev
->mtu
> mtu
)))
2214 card
->dev
->mtu
= mtu
;
2215 qeth_free_qdio_buffers(card
);
2217 card
->info
.initial_mtu
= mtu
;
2218 card
->info
.max_mtu
= mtu
;
2219 card
->qdio
.in_buf_size
= mtu
+ 2 * PAGE_SIZE
;
2221 card
->info
.initial_mtu
= qeth_get_initial_mtu_for_card(card
);
2222 card
->info
.max_mtu
= *(__u16
*)QETH_ULP_ENABLE_RESP_MAX_MTU(
2224 card
->qdio
.in_buf_size
= QETH_IN_BUF_SIZE_DEFAULT
;
2227 memcpy(&len
, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob
->data
), 2);
2228 if (len
>= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE
) {
2230 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob
->data
), 1);
2231 card
->info
.link_type
= link_type
;
2233 card
->info
.link_type
= 0;
2234 QETH_DBF_TEXT_(SETUP
, 2, "link%d", card
->info
.link_type
);
2235 QETH_DBF_TEXT_(SETUP
, 2, " rc%d", iob
->rc
);
2239 static int qeth_ulp_enable(struct qeth_card
*card
)
2243 struct qeth_cmd_buffer
*iob
;
2245 /*FIXME: trace view callbacks*/
2246 QETH_DBF_TEXT(SETUP
, 2, "ulpenabl");
2248 iob
= qeth_wait_for_buffer(&card
->write
);
2249 memcpy(iob
->data
, ULP_ENABLE
, ULP_ENABLE_SIZE
);
2251 *(QETH_ULP_ENABLE_LINKNUM(iob
->data
)) =
2252 (__u8
) card
->info
.portno
;
2253 if (card
->options
.layer2
)
2254 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
2255 prot_type
= QETH_PROT_OSN2
;
2257 prot_type
= QETH_PROT_LAYER2
;
2259 prot_type
= QETH_PROT_TCPIP
;
2261 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob
->data
), &prot_type
, 1);
2262 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob
->data
),
2263 &card
->token
.cm_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2264 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob
->data
),
2265 &card
->token
.ulp_filter_w
, QETH_MPC_TOKEN_LENGTH
);
2266 memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob
->data
),
2267 card
->info
.portname
, 9);
2268 rc
= qeth_send_control_data(card
, ULP_ENABLE_SIZE
, iob
,
2269 qeth_ulp_enable_cb
, NULL
);
2274 static int qeth_ulp_setup_cb(struct qeth_card
*card
, struct qeth_reply
*reply
,
2277 struct qeth_cmd_buffer
*iob
;
2280 QETH_DBF_TEXT(SETUP
, 2, "ulpstpcb");
2282 iob
= (struct qeth_cmd_buffer
*) data
;
2283 memcpy(&card
->token
.ulp_connection_r
,
2284 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob
->data
),
2285 QETH_MPC_TOKEN_LENGTH
);
2286 if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob
->data
),
2288 QETH_DBF_TEXT(SETUP
, 2, "olmlimit");
2289 dev_err(&card
->gdev
->dev
, "A connection could not be "
2290 "established because of an OLM limit\n");
2293 QETH_DBF_TEXT_(SETUP
, 2, " rc%d", iob
->rc
);
2297 static int qeth_ulp_setup(struct qeth_card
*card
)
2301 struct qeth_cmd_buffer
*iob
;
2302 struct ccw_dev_id dev_id
;
2304 QETH_DBF_TEXT(SETUP
, 2, "ulpsetup");
2306 iob
= qeth_wait_for_buffer(&card
->write
);
2307 memcpy(iob
->data
, ULP_SETUP
, ULP_SETUP_SIZE
);
2309 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob
->data
),
2310 &card
->token
.cm_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2311 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob
->data
),
2312 &card
->token
.ulp_connection_w
, QETH_MPC_TOKEN_LENGTH
);
2313 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob
->data
),
2314 &card
->token
.ulp_filter_r
, QETH_MPC_TOKEN_LENGTH
);
2316 ccw_device_get_id(CARD_DDEV(card
), &dev_id
);
2317 memcpy(QETH_ULP_SETUP_CUA(iob
->data
), &dev_id
.devno
, 2);
2318 temp
= (card
->info
.cula
<< 8) + card
->info
.unit_addr2
;
2319 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob
->data
), &temp
, 2);
2320 rc
= qeth_send_control_data(card
, ULP_SETUP_SIZE
, iob
,
2321 qeth_ulp_setup_cb
, NULL
);
2325 static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q
*q
, int bidx
)
2328 struct qeth_qdio_out_buffer
*newbuf
;
2331 newbuf
= kmem_cache_zalloc(qeth_qdio_outbuf_cache
, GFP_ATOMIC
);
2336 newbuf
->buffer
= &q
->qdio_bufs
[bidx
];
2337 skb_queue_head_init(&newbuf
->skb_list
);
2338 lockdep_set_class(&newbuf
->skb_list
.lock
, &qdio_out_skb_queue_key
);
2341 newbuf
->next_pending
= q
->bufs
[bidx
];
2342 atomic_set(&newbuf
->state
, QETH_QDIO_BUF_EMPTY
);
2343 q
->bufs
[bidx
] = newbuf
;
2345 q
->bufstates
[bidx
].user
= newbuf
;
2346 QETH_CARD_TEXT_(q
->card
, 2, "nbs%d", bidx
);
2347 QETH_CARD_TEXT_(q
->card
, 2, "%lx", (long) newbuf
);
2348 QETH_CARD_TEXT_(q
->card
, 2, "%lx",
2349 (long) newbuf
->next_pending
);
2356 static int qeth_alloc_qdio_buffers(struct qeth_card
*card
)
2360 QETH_DBF_TEXT(SETUP
, 2, "allcqdbf");
2362 if (atomic_cmpxchg(&card
->qdio
.state
, QETH_QDIO_UNINITIALIZED
,
2363 QETH_QDIO_ALLOCATED
) != QETH_QDIO_UNINITIALIZED
)
2366 card
->qdio
.in_q
= kzalloc(sizeof(struct qeth_qdio_q
),
2368 if (!card
->qdio
.in_q
)
2370 QETH_DBF_TEXT(SETUP
, 2, "inq");
2371 QETH_DBF_HEX(SETUP
, 2, &card
->qdio
.in_q
, sizeof(void *));
2372 memset(card
->qdio
.in_q
, 0, sizeof(struct qeth_qdio_q
));
2373 /* give inbound qeth_qdio_buffers their qdio_buffers */
2374 for (i
= 0; i
< QDIO_MAX_BUFFERS_PER_Q
; ++i
) {
2375 card
->qdio
.in_q
->bufs
[i
].buffer
=
2376 &card
->qdio
.in_q
->qdio_bufs
[i
];
2377 card
->qdio
.in_q
->bufs
[i
].rx_skb
= NULL
;
2379 /* inbound buffer pool */
2380 if (qeth_alloc_buffer_pool(card
))
2385 kzalloc(card
->qdio
.no_out_queues
*
2386 sizeof(struct qeth_qdio_out_q
*), GFP_KERNEL
);
2387 if (!card
->qdio
.out_qs
)
2389 for (i
= 0; i
< card
->qdio
.no_out_queues
; ++i
) {
2390 card
->qdio
.out_qs
[i
] = kzalloc(sizeof(struct qeth_qdio_out_q
),
2392 if (!card
->qdio
.out_qs
[i
])
2394 QETH_DBF_TEXT_(SETUP
, 2, "outq %i", i
);
2395 QETH_DBF_HEX(SETUP
, 2, &card
->qdio
.out_qs
[i
], sizeof(void *));
2396 card
->qdio
.out_qs
[i
]->queue_no
= i
;
2397 /* give outbound qeth_qdio_buffers their qdio_buffers */
2398 for (j
= 0; j
< QDIO_MAX_BUFFERS_PER_Q
; ++j
) {
2399 BUG_ON(card
->qdio
.out_qs
[i
]->bufs
[j
] != NULL
);
2400 if (qeth_init_qdio_out_buf(card
->qdio
.out_qs
[i
], j
))
2401 goto out_freeoutqbufs
;
2406 if (qeth_alloc_cq(card
))
2414 kmem_cache_free(qeth_qdio_outbuf_cache
,
2415 card
->qdio
.out_qs
[i
]->bufs
[j
]);
2416 card
->qdio
.out_qs
[i
]->bufs
[j
] = NULL
;
2420 kfree(card
->qdio
.out_qs
[--i
]);
2421 qeth_clear_outq_buffers(card
->qdio
.out_qs
[i
], 1);
2423 kfree(card
->qdio
.out_qs
);
2424 card
->qdio
.out_qs
= NULL
;
2426 qeth_free_buffer_pool(card
);
2428 kfree(card
->qdio
.in_q
);
2429 card
->qdio
.in_q
= NULL
;
2431 atomic_set(&card
->qdio
.state
, QETH_QDIO_UNINITIALIZED
);
2435 static void qeth_create_qib_param_field(struct qeth_card
*card
,
2439 param_field
[0] = _ascebc
['P'];
2440 param_field
[1] = _ascebc
['C'];
2441 param_field
[2] = _ascebc
['I'];
2442 param_field
[3] = _ascebc
['T'];
2443 *((unsigned int *) (¶m_field
[4])) = QETH_PCI_THRESHOLD_A(card
);
2444 *((unsigned int *) (¶m_field
[8])) = QETH_PCI_THRESHOLD_B(card
);
2445 *((unsigned int *) (¶m_field
[12])) = QETH_PCI_TIMER_VALUE(card
);
2448 static void qeth_create_qib_param_field_blkt(struct qeth_card
*card
,
2451 param_field
[16] = _ascebc
['B'];
2452 param_field
[17] = _ascebc
['L'];
2453 param_field
[18] = _ascebc
['K'];
2454 param_field
[19] = _ascebc
['T'];
2455 *((unsigned int *) (¶m_field
[20])) = card
->info
.blkt
.time_total
;
2456 *((unsigned int *) (¶m_field
[24])) = card
->info
.blkt
.inter_packet
;
2457 *((unsigned int *) (¶m_field
[28])) =
2458 card
->info
.blkt
.inter_packet_jumbo
;
2461 static int qeth_qdio_activate(struct qeth_card
*card
)
2463 QETH_DBF_TEXT(SETUP
, 3, "qdioact");
2464 return qdio_activate(CARD_DDEV(card
));
2467 static int qeth_dm_act(struct qeth_card
*card
)
2470 struct qeth_cmd_buffer
*iob
;
2472 QETH_DBF_TEXT(SETUP
, 2, "dmact");
2474 iob
= qeth_wait_for_buffer(&card
->write
);
2475 memcpy(iob
->data
, DM_ACT
, DM_ACT_SIZE
);
2477 memcpy(QETH_DM_ACT_DEST_ADDR(iob
->data
),
2478 &card
->token
.cm_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2479 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob
->data
),
2480 &card
->token
.ulp_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2481 rc
= qeth_send_control_data(card
, DM_ACT_SIZE
, iob
, NULL
, NULL
);
2485 static int qeth_mpc_initialize(struct qeth_card
*card
)
2489 QETH_DBF_TEXT(SETUP
, 2, "mpcinit");
2491 rc
= qeth_issue_next_read(card
);
2493 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
2496 rc
= qeth_cm_enable(card
);
2498 QETH_DBF_TEXT_(SETUP
, 2, "2err%d", rc
);
2501 rc
= qeth_cm_setup(card
);
2503 QETH_DBF_TEXT_(SETUP
, 2, "3err%d", rc
);
2506 rc
= qeth_ulp_enable(card
);
2508 QETH_DBF_TEXT_(SETUP
, 2, "4err%d", rc
);
2511 rc
= qeth_ulp_setup(card
);
2513 QETH_DBF_TEXT_(SETUP
, 2, "5err%d", rc
);
2516 rc
= qeth_alloc_qdio_buffers(card
);
2518 QETH_DBF_TEXT_(SETUP
, 2, "5err%d", rc
);
2521 rc
= qeth_qdio_establish(card
);
2523 QETH_DBF_TEXT_(SETUP
, 2, "6err%d", rc
);
2524 qeth_free_qdio_buffers(card
);
2527 rc
= qeth_qdio_activate(card
);
2529 QETH_DBF_TEXT_(SETUP
, 2, "7err%d", rc
);
2532 rc
= qeth_dm_act(card
);
2534 QETH_DBF_TEXT_(SETUP
, 2, "8err%d", rc
);
2540 qeth_qdio_clear_card(card
, card
->info
.type
!= QETH_CARD_TYPE_IQD
);
2544 static void qeth_print_status_with_portname(struct qeth_card
*card
)
2549 sprintf(dbf_text
, "%s", card
->info
.portname
+ 1);
2550 for (i
= 0; i
< 8; i
++)
2552 (char) _ebcasc
[(__u8
) dbf_text
[i
]];
2554 dev_info(&card
->gdev
->dev
, "Device is a%s card%s%s%s\n"
2555 "with link type %s (portname: %s)\n",
2556 qeth_get_cardname(card
),
2557 (card
->info
.mcl_level
[0]) ? " (level: " : "",
2558 (card
->info
.mcl_level
[0]) ? card
->info
.mcl_level
: "",
2559 (card
->info
.mcl_level
[0]) ? ")" : "",
2560 qeth_get_cardname_short(card
),
2565 static void qeth_print_status_no_portname(struct qeth_card
*card
)
2567 if (card
->info
.portname
[0])
2568 dev_info(&card
->gdev
->dev
, "Device is a%s "
2569 "card%s%s%s\nwith link type %s "
2570 "(no portname needed by interface).\n",
2571 qeth_get_cardname(card
),
2572 (card
->info
.mcl_level
[0]) ? " (level: " : "",
2573 (card
->info
.mcl_level
[0]) ? card
->info
.mcl_level
: "",
2574 (card
->info
.mcl_level
[0]) ? ")" : "",
2575 qeth_get_cardname_short(card
));
2577 dev_info(&card
->gdev
->dev
, "Device is a%s "
2578 "card%s%s%s\nwith link type %s.\n",
2579 qeth_get_cardname(card
),
2580 (card
->info
.mcl_level
[0]) ? " (level: " : "",
2581 (card
->info
.mcl_level
[0]) ? card
->info
.mcl_level
: "",
2582 (card
->info
.mcl_level
[0]) ? ")" : "",
2583 qeth_get_cardname_short(card
));
2586 void qeth_print_status_message(struct qeth_card
*card
)
2588 switch (card
->info
.type
) {
2589 case QETH_CARD_TYPE_OSD
:
2590 case QETH_CARD_TYPE_OSM
:
2591 case QETH_CARD_TYPE_OSX
:
2592 /* VM will use a non-zero first character
2593 * to indicate a HiperSockets like reporting
2594 * of the level OSA sets the first character to zero
2596 if (!card
->info
.mcl_level
[0]) {
2597 sprintf(card
->info
.mcl_level
, "%02x%02x",
2598 card
->info
.mcl_level
[2],
2599 card
->info
.mcl_level
[3]);
2601 card
->info
.mcl_level
[QETH_MCL_LENGTH
] = 0;
2605 case QETH_CARD_TYPE_IQD
:
2606 if ((card
->info
.guestlan
) ||
2607 (card
->info
.mcl_level
[0] & 0x80)) {
2608 card
->info
.mcl_level
[0] = (char) _ebcasc
[(__u8
)
2609 card
->info
.mcl_level
[0]];
2610 card
->info
.mcl_level
[1] = (char) _ebcasc
[(__u8
)
2611 card
->info
.mcl_level
[1]];
2612 card
->info
.mcl_level
[2] = (char) _ebcasc
[(__u8
)
2613 card
->info
.mcl_level
[2]];
2614 card
->info
.mcl_level
[3] = (char) _ebcasc
[(__u8
)
2615 card
->info
.mcl_level
[3]];
2616 card
->info
.mcl_level
[QETH_MCL_LENGTH
] = 0;
2620 memset(&card
->info
.mcl_level
[0], 0, QETH_MCL_LENGTH
+ 1);
2622 if (card
->info
.portname_required
)
2623 qeth_print_status_with_portname(card
);
2625 qeth_print_status_no_portname(card
);
2627 EXPORT_SYMBOL_GPL(qeth_print_status_message
);
2629 static void qeth_initialize_working_pool_list(struct qeth_card
*card
)
2631 struct qeth_buffer_pool_entry
*entry
;
2633 QETH_CARD_TEXT(card
, 5, "inwrklst");
2635 list_for_each_entry(entry
,
2636 &card
->qdio
.init_pool
.entry_list
, init_list
) {
2637 qeth_put_buffer_pool_entry(card
, entry
);
2641 static inline struct qeth_buffer_pool_entry
*qeth_find_free_buffer_pool_entry(
2642 struct qeth_card
*card
)
2644 struct list_head
*plh
;
2645 struct qeth_buffer_pool_entry
*entry
;
2649 if (list_empty(&card
->qdio
.in_buf_pool
.entry_list
))
2652 list_for_each(plh
, &card
->qdio
.in_buf_pool
.entry_list
) {
2653 entry
= list_entry(plh
, struct qeth_buffer_pool_entry
, list
);
2655 for (i
= 0; i
< QETH_MAX_BUFFER_ELEMENTS(card
); ++i
) {
2656 if (page_count(virt_to_page(entry
->elements
[i
])) > 1) {
2662 list_del_init(&entry
->list
);
2667 /* no free buffer in pool so take first one and swap pages */
2668 entry
= list_entry(card
->qdio
.in_buf_pool
.entry_list
.next
,
2669 struct qeth_buffer_pool_entry
, list
);
2670 for (i
= 0; i
< QETH_MAX_BUFFER_ELEMENTS(card
); ++i
) {
2671 if (page_count(virt_to_page(entry
->elements
[i
])) > 1) {
2672 page
= alloc_page(GFP_ATOMIC
);
2676 free_page((unsigned long)entry
->elements
[i
]);
2677 entry
->elements
[i
] = page_address(page
);
2678 if (card
->options
.performance_stats
)
2679 card
->perf_stats
.sg_alloc_page_rx
++;
2683 list_del_init(&entry
->list
);
2687 static int qeth_init_input_buffer(struct qeth_card
*card
,
2688 struct qeth_qdio_buffer
*buf
)
2690 struct qeth_buffer_pool_entry
*pool_entry
;
2693 if ((card
->options
.cq
== QETH_CQ_ENABLED
) && (!buf
->rx_skb
)) {
2694 buf
->rx_skb
= dev_alloc_skb(QETH_RX_PULL_LEN
+ ETH_HLEN
);
2699 pool_entry
= qeth_find_free_buffer_pool_entry(card
);
2704 * since the buffer is accessed only from the input_tasklet
2705 * there shouldn't be a need to synchronize; also, since we use
2706 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2710 buf
->pool_entry
= pool_entry
;
2711 for (i
= 0; i
< QETH_MAX_BUFFER_ELEMENTS(card
); ++i
) {
2712 buf
->buffer
->element
[i
].length
= PAGE_SIZE
;
2713 buf
->buffer
->element
[i
].addr
= pool_entry
->elements
[i
];
2714 if (i
== QETH_MAX_BUFFER_ELEMENTS(card
) - 1)
2715 buf
->buffer
->element
[i
].eflags
= SBAL_EFLAGS_LAST_ENTRY
;
2717 buf
->buffer
->element
[i
].eflags
= 0;
2718 buf
->buffer
->element
[i
].sflags
= 0;
2723 int qeth_init_qdio_queues(struct qeth_card
*card
)
2728 QETH_DBF_TEXT(SETUP
, 2, "initqdqs");
2731 memset(card
->qdio
.in_q
->qdio_bufs
, 0,
2732 QDIO_MAX_BUFFERS_PER_Q
* sizeof(struct qdio_buffer
));
2733 qeth_initialize_working_pool_list(card
);
2734 /*give only as many buffers to hardware as we have buffer pool entries*/
2735 for (i
= 0; i
< card
->qdio
.in_buf_pool
.buf_count
- 1; ++i
)
2736 qeth_init_input_buffer(card
, &card
->qdio
.in_q
->bufs
[i
]);
2737 card
->qdio
.in_q
->next_buf_to_init
=
2738 card
->qdio
.in_buf_pool
.buf_count
- 1;
2739 rc
= do_QDIO(CARD_DDEV(card
), QDIO_FLAG_SYNC_INPUT
, 0, 0,
2740 card
->qdio
.in_buf_pool
.buf_count
- 1);
2742 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
2747 rc
= qeth_cq_init(card
);
2752 /* outbound queue */
2753 for (i
= 0; i
< card
->qdio
.no_out_queues
; ++i
) {
2754 memset(card
->qdio
.out_qs
[i
]->qdio_bufs
, 0,
2755 QDIO_MAX_BUFFERS_PER_Q
* sizeof(struct qdio_buffer
));
2756 for (j
= 0; j
< QDIO_MAX_BUFFERS_PER_Q
; ++j
) {
2757 qeth_clear_output_buffer(card
->qdio
.out_qs
[i
],
2758 card
->qdio
.out_qs
[i
]->bufs
[j
],
2759 QETH_QDIO_BUF_EMPTY
);
2761 card
->qdio
.out_qs
[i
]->card
= card
;
2762 card
->qdio
.out_qs
[i
]->next_buf_to_fill
= 0;
2763 card
->qdio
.out_qs
[i
]->do_pack
= 0;
2764 atomic_set(&card
->qdio
.out_qs
[i
]->used_buffers
, 0);
2765 atomic_set(&card
->qdio
.out_qs
[i
]->set_pci_flags_count
, 0);
2766 atomic_set(&card
->qdio
.out_qs
[i
]->state
,
2767 QETH_OUT_Q_UNLOCKED
);
2771 EXPORT_SYMBOL_GPL(qeth_init_qdio_queues
);
2773 static inline __u8
qeth_get_ipa_adp_type(enum qeth_link_types link_type
)
2775 switch (link_type
) {
2776 case QETH_LINK_TYPE_HSTR
:
2783 static void qeth_fill_ipacmd_header(struct qeth_card
*card
,
2784 struct qeth_ipa_cmd
*cmd
, __u8 command
,
2785 enum qeth_prot_versions prot
)
2787 memset(cmd
, 0, sizeof(struct qeth_ipa_cmd
));
2788 cmd
->hdr
.command
= command
;
2789 cmd
->hdr
.initiator
= IPA_CMD_INITIATOR_HOST
;
2790 cmd
->hdr
.seqno
= card
->seqno
.ipa
;
2791 cmd
->hdr
.adapter_type
= qeth_get_ipa_adp_type(card
->info
.link_type
);
2792 cmd
->hdr
.rel_adapter_no
= (__u8
) card
->info
.portno
;
2793 if (card
->options
.layer2
)
2794 cmd
->hdr
.prim_version_no
= 2;
2796 cmd
->hdr
.prim_version_no
= 1;
2797 cmd
->hdr
.param_count
= 1;
2798 cmd
->hdr
.prot_version
= prot
;
2799 cmd
->hdr
.ipa_supported
= 0;
2800 cmd
->hdr
.ipa_enabled
= 0;
2803 struct qeth_cmd_buffer
*qeth_get_ipacmd_buffer(struct qeth_card
*card
,
2804 enum qeth_ipa_cmds ipacmd
, enum qeth_prot_versions prot
)
2806 struct qeth_cmd_buffer
*iob
;
2807 struct qeth_ipa_cmd
*cmd
;
2809 iob
= qeth_wait_for_buffer(&card
->write
);
2810 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
2811 qeth_fill_ipacmd_header(card
, cmd
, ipacmd
, prot
);
2815 EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer
);
2817 void qeth_prepare_ipa_cmd(struct qeth_card
*card
, struct qeth_cmd_buffer
*iob
,
2820 memcpy(iob
->data
, IPA_PDU_HEADER
, IPA_PDU_HEADER_SIZE
);
2821 memcpy(QETH_IPA_CMD_PROT_TYPE(iob
->data
), &prot_type
, 1);
2822 memcpy(QETH_IPA_CMD_DEST_ADDR(iob
->data
),
2823 &card
->token
.ulp_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2825 EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd
);
2827 int qeth_send_ipa_cmd(struct qeth_card
*card
, struct qeth_cmd_buffer
*iob
,
2828 int (*reply_cb
)(struct qeth_card
*, struct qeth_reply
*,
2835 QETH_CARD_TEXT(card
, 4, "sendipa");
2837 if (card
->options
.layer2
)
2838 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
2839 prot_type
= QETH_PROT_OSN2
;
2841 prot_type
= QETH_PROT_LAYER2
;
2843 prot_type
= QETH_PROT_TCPIP
;
2844 qeth_prepare_ipa_cmd(card
, iob
, prot_type
);
2845 rc
= qeth_send_control_data(card
, IPA_CMD_LENGTH
,
2846 iob
, reply_cb
, reply_param
);
2848 qeth_clear_ipacmd_list(card
);
2849 qeth_schedule_recovery(card
);
2853 EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd
);
2855 int qeth_send_startlan(struct qeth_card
*card
)
2858 struct qeth_cmd_buffer
*iob
;
2860 QETH_DBF_TEXT(SETUP
, 2, "strtlan");
2862 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_STARTLAN
, 0);
2863 rc
= qeth_send_ipa_cmd(card
, iob
, NULL
, NULL
);
2866 EXPORT_SYMBOL_GPL(qeth_send_startlan
);
2868 int qeth_default_setadapterparms_cb(struct qeth_card
*card
,
2869 struct qeth_reply
*reply
, unsigned long data
)
2871 struct qeth_ipa_cmd
*cmd
;
2873 QETH_CARD_TEXT(card
, 4, "defadpcb");
2875 cmd
= (struct qeth_ipa_cmd
*) data
;
2876 if (cmd
->hdr
.return_code
== 0)
2877 cmd
->hdr
.return_code
=
2878 cmd
->data
.setadapterparms
.hdr
.return_code
;
2881 EXPORT_SYMBOL_GPL(qeth_default_setadapterparms_cb
);
2883 static int qeth_query_setadapterparms_cb(struct qeth_card
*card
,
2884 struct qeth_reply
*reply
, unsigned long data
)
2886 struct qeth_ipa_cmd
*cmd
;
2888 QETH_CARD_TEXT(card
, 3, "quyadpcb");
2890 cmd
= (struct qeth_ipa_cmd
*) data
;
2891 if (cmd
->data
.setadapterparms
.data
.query_cmds_supp
.lan_type
& 0x7f) {
2892 card
->info
.link_type
=
2893 cmd
->data
.setadapterparms
.data
.query_cmds_supp
.lan_type
;
2894 QETH_DBF_TEXT_(SETUP
, 2, "lnk %d", card
->info
.link_type
);
2896 card
->options
.adp
.supported_funcs
=
2897 cmd
->data
.setadapterparms
.data
.query_cmds_supp
.supported_cmds
;
2898 return qeth_default_setadapterparms_cb(card
, reply
, (unsigned long)cmd
);
2901 struct qeth_cmd_buffer
*qeth_get_adapter_cmd(struct qeth_card
*card
,
2902 __u32 command
, __u32 cmdlen
)
2904 struct qeth_cmd_buffer
*iob
;
2905 struct qeth_ipa_cmd
*cmd
;
2907 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_SETADAPTERPARMS
,
2909 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
2910 cmd
->data
.setadapterparms
.hdr
.cmdlength
= cmdlen
;
2911 cmd
->data
.setadapterparms
.hdr
.command_code
= command
;
2912 cmd
->data
.setadapterparms
.hdr
.used_total
= 1;
2913 cmd
->data
.setadapterparms
.hdr
.seq_no
= 1;
2917 EXPORT_SYMBOL_GPL(qeth_get_adapter_cmd
);
2919 int qeth_query_setadapterparms(struct qeth_card
*card
)
2922 struct qeth_cmd_buffer
*iob
;
2924 QETH_CARD_TEXT(card
, 3, "queryadp");
2925 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_QUERY_COMMANDS_SUPPORTED
,
2926 sizeof(struct qeth_ipacmd_setadpparms
));
2927 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_query_setadapterparms_cb
, NULL
);
2930 EXPORT_SYMBOL_GPL(qeth_query_setadapterparms
);
2932 static int qeth_query_ipassists_cb(struct qeth_card
*card
,
2933 struct qeth_reply
*reply
, unsigned long data
)
2935 struct qeth_ipa_cmd
*cmd
;
2937 QETH_DBF_TEXT(SETUP
, 2, "qipasscb");
2939 cmd
= (struct qeth_ipa_cmd
*) data
;
2940 if (cmd
->hdr
.prot_version
== QETH_PROT_IPV4
) {
2941 card
->options
.ipa4
.supported_funcs
= cmd
->hdr
.ipa_supported
;
2942 card
->options
.ipa4
.enabled_funcs
= cmd
->hdr
.ipa_enabled
;
2944 card
->options
.ipa6
.supported_funcs
= cmd
->hdr
.ipa_supported
;
2945 card
->options
.ipa6
.enabled_funcs
= cmd
->hdr
.ipa_enabled
;
2947 QETH_DBF_TEXT(SETUP
, 2, "suppenbl");
2948 QETH_DBF_TEXT_(SETUP
, 2, "%08x", (__u32
)cmd
->hdr
.ipa_supported
);
2949 QETH_DBF_TEXT_(SETUP
, 2, "%08x", (__u32
)cmd
->hdr
.ipa_enabled
);
2953 int qeth_query_ipassists(struct qeth_card
*card
, enum qeth_prot_versions prot
)
2956 struct qeth_cmd_buffer
*iob
;
2958 QETH_DBF_TEXT_(SETUP
, 2, "qipassi%i", prot
);
2959 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_QIPASSIST
, prot
);
2960 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_query_ipassists_cb
, NULL
);
2963 EXPORT_SYMBOL_GPL(qeth_query_ipassists
);
2965 static int qeth_query_setdiagass_cb(struct qeth_card
*card
,
2966 struct qeth_reply
*reply
, unsigned long data
)
2968 struct qeth_ipa_cmd
*cmd
;
2971 cmd
= (struct qeth_ipa_cmd
*)data
;
2972 rc
= cmd
->hdr
.return_code
;
2974 QETH_CARD_TEXT_(card
, 2, "diagq:%x", rc
);
2976 card
->info
.diagass_support
= cmd
->data
.diagass
.ext
;
2980 static int qeth_query_setdiagass(struct qeth_card
*card
)
2982 struct qeth_cmd_buffer
*iob
;
2983 struct qeth_ipa_cmd
*cmd
;
2985 QETH_DBF_TEXT(SETUP
, 2, "qdiagass");
2986 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_SET_DIAG_ASS
, 0);
2987 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
2988 cmd
->data
.diagass
.subcmd_len
= 16;
2989 cmd
->data
.diagass
.subcmd
= QETH_DIAGS_CMD_QUERY
;
2990 return qeth_send_ipa_cmd(card
, iob
, qeth_query_setdiagass_cb
, NULL
);
2993 static void qeth_get_trap_id(struct qeth_card
*card
, struct qeth_trap_id
*tid
)
2995 unsigned long info
= get_zeroed_page(GFP_KERNEL
);
2996 struct sysinfo_2_2_2
*info222
= (struct sysinfo_2_2_2
*)info
;
2997 struct sysinfo_3_2_2
*info322
= (struct sysinfo_3_2_2
*)info
;
2998 struct ccw_dev_id ccwid
;
3001 tid
->chpid
= card
->info
.chpid
;
3002 ccw_device_get_id(CARD_RDEV(card
), &ccwid
);
3003 tid
->ssid
= ccwid
.ssid
;
3004 tid
->devno
= ccwid
.devno
;
3008 rc
= stsi(NULL
, 0, 0, 0);
3012 level
= (((unsigned int) rc
) >> 28);
3014 if ((level
>= 2) && (stsi(info222
, 2, 2, 2) != -ENOSYS
))
3015 tid
->lparnr
= info222
->lpar_number
;
3017 if ((level
>= 3) && (stsi(info322
, 3, 2, 2) != -ENOSYS
)) {
3018 EBCASC(info322
->vm
[0].name
, sizeof(info322
->vm
[0].name
));
3019 memcpy(tid
->vmname
, info322
->vm
[0].name
, sizeof(tid
->vmname
));
3025 static int qeth_hw_trap_cb(struct qeth_card
*card
,
3026 struct qeth_reply
*reply
, unsigned long data
)
3028 struct qeth_ipa_cmd
*cmd
;
3031 cmd
= (struct qeth_ipa_cmd
*)data
;
3032 rc
= cmd
->hdr
.return_code
;
3034 QETH_CARD_TEXT_(card
, 2, "trapc:%x", rc
);
3038 int qeth_hw_trap(struct qeth_card
*card
, enum qeth_diags_trap_action action
)
3040 struct qeth_cmd_buffer
*iob
;
3041 struct qeth_ipa_cmd
*cmd
;
3043 QETH_DBF_TEXT(SETUP
, 2, "diagtrap");
3044 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_SET_DIAG_ASS
, 0);
3045 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
3046 cmd
->data
.diagass
.subcmd_len
= 80;
3047 cmd
->data
.diagass
.subcmd
= QETH_DIAGS_CMD_TRAP
;
3048 cmd
->data
.diagass
.type
= 1;
3049 cmd
->data
.diagass
.action
= action
;
3051 case QETH_DIAGS_TRAP_ARM
:
3052 cmd
->data
.diagass
.options
= 0x0003;
3053 cmd
->data
.diagass
.ext
= 0x00010000 +
3054 sizeof(struct qeth_trap_id
);
3055 qeth_get_trap_id(card
,
3056 (struct qeth_trap_id
*)cmd
->data
.diagass
.cdata
);
3058 case QETH_DIAGS_TRAP_DISARM
:
3059 cmd
->data
.diagass
.options
= 0x0001;
3061 case QETH_DIAGS_TRAP_CAPTURE
:
3064 return qeth_send_ipa_cmd(card
, iob
, qeth_hw_trap_cb
, NULL
);
3066 EXPORT_SYMBOL_GPL(qeth_hw_trap
);
3068 int qeth_check_qdio_errors(struct qeth_card
*card
, struct qdio_buffer
*buf
,
3069 unsigned int qdio_error
, const char *dbftext
)
3072 QETH_CARD_TEXT(card
, 2, dbftext
);
3073 QETH_CARD_TEXT_(card
, 2, " F15=%02X",
3074 buf
->element
[15].sflags
);
3075 QETH_CARD_TEXT_(card
, 2, " F14=%02X",
3076 buf
->element
[14].sflags
);
3077 QETH_CARD_TEXT_(card
, 2, " qerr=%X", qdio_error
);
3078 if ((buf
->element
[15].sflags
) == 0x12) {
3079 card
->stats
.rx_dropped
++;
3086 EXPORT_SYMBOL_GPL(qeth_check_qdio_errors
);
3088 void qeth_buffer_reclaim_work(struct work_struct
*work
)
3090 struct qeth_card
*card
= container_of(work
, struct qeth_card
,
3091 buffer_reclaim_work
.work
);
3093 QETH_CARD_TEXT_(card
, 2, "brw:%x", card
->reclaim_index
);
3094 qeth_queue_input_buffer(card
, card
->reclaim_index
);
3097 void qeth_queue_input_buffer(struct qeth_card
*card
, int index
)
3099 struct qeth_qdio_q
*queue
= card
->qdio
.in_q
;
3100 struct list_head
*lh
;
3106 count
= (index
< queue
->next_buf_to_init
)?
3107 card
->qdio
.in_buf_pool
.buf_count
-
3108 (queue
->next_buf_to_init
- index
) :
3109 card
->qdio
.in_buf_pool
.buf_count
-
3110 (queue
->next_buf_to_init
+ QDIO_MAX_BUFFERS_PER_Q
- index
);
3111 /* only requeue at a certain threshold to avoid SIGAs */
3112 if (count
>= QETH_IN_BUF_REQUEUE_THRESHOLD(card
)) {
3113 for (i
= queue
->next_buf_to_init
;
3114 i
< queue
->next_buf_to_init
+ count
; ++i
) {
3115 if (qeth_init_input_buffer(card
,
3116 &queue
->bufs
[i
% QDIO_MAX_BUFFERS_PER_Q
])) {
3123 if (newcount
< count
) {
3124 /* we are in memory shortage so we switch back to
3125 traditional skb allocation and drop packages */
3126 atomic_set(&card
->force_alloc_skb
, 3);
3129 atomic_add_unless(&card
->force_alloc_skb
, -1, 0);
3134 list_for_each(lh
, &card
->qdio
.in_buf_pool
.entry_list
)
3136 if (i
== card
->qdio
.in_buf_pool
.buf_count
) {
3137 QETH_CARD_TEXT(card
, 2, "qsarbw");
3138 card
->reclaim_index
= index
;
3139 schedule_delayed_work(
3140 &card
->buffer_reclaim_work
,
3141 QETH_RECLAIM_WORK_TIME
);
3147 * according to old code it should be avoided to requeue all
3148 * 128 buffers in order to benefit from PCI avoidance.
3149 * this function keeps at least one buffer (the buffer at
3150 * 'index') un-requeued -> this buffer is the first buffer that
3151 * will be requeued the next time
3153 if (card
->options
.performance_stats
) {
3154 card
->perf_stats
.inbound_do_qdio_cnt
++;
3155 card
->perf_stats
.inbound_do_qdio_start_time
=
3158 rc
= do_QDIO(CARD_DDEV(card
), QDIO_FLAG_SYNC_INPUT
, 0,
3159 queue
->next_buf_to_init
, count
);
3160 if (card
->options
.performance_stats
)
3161 card
->perf_stats
.inbound_do_qdio_time
+=
3163 card
->perf_stats
.inbound_do_qdio_start_time
;
3165 QETH_CARD_TEXT(card
, 2, "qinberr");
3167 queue
->next_buf_to_init
= (queue
->next_buf_to_init
+ count
) %
3168 QDIO_MAX_BUFFERS_PER_Q
;
3171 EXPORT_SYMBOL_GPL(qeth_queue_input_buffer
);
3173 static int qeth_handle_send_error(struct qeth_card
*card
,
3174 struct qeth_qdio_out_buffer
*buffer
, unsigned int qdio_err
)
3176 int sbalf15
= buffer
->buffer
->element
[15].sflags
;
3178 QETH_CARD_TEXT(card
, 6, "hdsnderr");
3179 if (card
->info
.type
== QETH_CARD_TYPE_IQD
) {
3186 qeth_check_qdio_errors(card
, buffer
->buffer
, qdio_err
, "qouterr");
3189 return QETH_SEND_ERROR_NONE
;
3191 if ((sbalf15
>= 15) && (sbalf15
<= 31))
3192 return QETH_SEND_ERROR_RETRY
;
3194 QETH_CARD_TEXT(card
, 1, "lnkfail");
3195 QETH_CARD_TEXT_(card
, 1, "%04x %02x",
3196 (u16
)qdio_err
, (u8
)sbalf15
);
3197 return QETH_SEND_ERROR_LINK_FAILURE
;
3201 * Switched to packing state if the number of used buffers on a queue
3202 * reaches a certain limit.
3204 static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q
*queue
)
3206 if (!queue
->do_pack
) {
3207 if (atomic_read(&queue
->used_buffers
)
3208 >= QETH_HIGH_WATERMARK_PACK
){
3209 /* switch non-PACKING -> PACKING */
3210 QETH_CARD_TEXT(queue
->card
, 6, "np->pack");
3211 if (queue
->card
->options
.performance_stats
)
3212 queue
->card
->perf_stats
.sc_dp_p
++;
3219 * Switches from packing to non-packing mode. If there is a packing
3220 * buffer on the queue this buffer will be prepared to be flushed.
3221 * In that case 1 is returned to inform the caller. If no buffer
3222 * has to be flushed, zero is returned.
3224 static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q
*queue
)
3226 struct qeth_qdio_out_buffer
*buffer
;
3227 int flush_count
= 0;
3229 if (queue
->do_pack
) {
3230 if (atomic_read(&queue
->used_buffers
)
3231 <= QETH_LOW_WATERMARK_PACK
) {
3232 /* switch PACKING -> non-PACKING */
3233 QETH_CARD_TEXT(queue
->card
, 6, "pack->np");
3234 if (queue
->card
->options
.performance_stats
)
3235 queue
->card
->perf_stats
.sc_p_dp
++;
3237 /* flush packing buffers */
3238 buffer
= queue
->bufs
[queue
->next_buf_to_fill
];
3239 if ((atomic_read(&buffer
->state
) ==
3240 QETH_QDIO_BUF_EMPTY
) &&
3241 (buffer
->next_element_to_fill
> 0)) {
3242 atomic_set(&buffer
->state
,
3243 QETH_QDIO_BUF_PRIMED
);
3245 queue
->next_buf_to_fill
=
3246 (queue
->next_buf_to_fill
+ 1) %
3247 QDIO_MAX_BUFFERS_PER_Q
;
3256 * Called to flush a packing buffer if no more pci flags are on the queue.
3257 * Checks if there is a packing buffer and prepares it to be flushed.
3258 * In that case returns 1, otherwise zero.
3260 static int qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q
*queue
)
3262 struct qeth_qdio_out_buffer
*buffer
;
3264 buffer
= queue
->bufs
[queue
->next_buf_to_fill
];
3265 if ((atomic_read(&buffer
->state
) == QETH_QDIO_BUF_EMPTY
) &&
3266 (buffer
->next_element_to_fill
> 0)) {
3267 /* it's a packing buffer */
3268 atomic_set(&buffer
->state
, QETH_QDIO_BUF_PRIMED
);
3269 queue
->next_buf_to_fill
=
3270 (queue
->next_buf_to_fill
+ 1) % QDIO_MAX_BUFFERS_PER_Q
;
3276 static void qeth_flush_buffers(struct qeth_qdio_out_q
*queue
, int index
,
3279 struct qeth_qdio_out_buffer
*buf
;
3282 unsigned int qdio_flags
;
3284 for (i
= index
; i
< index
+ count
; ++i
) {
3285 int bidx
= i
% QDIO_MAX_BUFFERS_PER_Q
;
3286 buf
= queue
->bufs
[bidx
];
3287 buf
->buffer
->element
[buf
->next_element_to_fill
- 1].eflags
|=
3288 SBAL_EFLAGS_LAST_ENTRY
;
3290 if (queue
->bufstates
)
3291 queue
->bufstates
[bidx
].user
= buf
;
3293 if (queue
->card
->info
.type
== QETH_CARD_TYPE_IQD
)
3296 if (!queue
->do_pack
) {
3297 if ((atomic_read(&queue
->used_buffers
) >=
3298 (QETH_HIGH_WATERMARK_PACK
-
3299 QETH_WATERMARK_PACK_FUZZ
)) &&
3300 !atomic_read(&queue
->set_pci_flags_count
)) {
3301 /* it's likely that we'll go to packing
3303 atomic_inc(&queue
->set_pci_flags_count
);
3304 buf
->buffer
->element
[0].sflags
|= SBAL_SFLAGS0_PCI_REQ
;
3307 if (!atomic_read(&queue
->set_pci_flags_count
)) {
3309 * there's no outstanding PCI any more, so we
3310 * have to request a PCI to be sure the the PCI
3311 * will wake at some time in the future then we
3312 * can flush packed buffers that might still be
3313 * hanging around, which can happen if no
3314 * further send was requested by the stack
3316 atomic_inc(&queue
->set_pci_flags_count
);
3317 buf
->buffer
->element
[0].sflags
|= SBAL_SFLAGS0_PCI_REQ
;
3322 queue
->card
->dev
->trans_start
= jiffies
;
3323 if (queue
->card
->options
.performance_stats
) {
3324 queue
->card
->perf_stats
.outbound_do_qdio_cnt
++;
3325 queue
->card
->perf_stats
.outbound_do_qdio_start_time
=
3328 qdio_flags
= QDIO_FLAG_SYNC_OUTPUT
;
3329 if (atomic_read(&queue
->set_pci_flags_count
))
3330 qdio_flags
|= QDIO_FLAG_PCI_OUT
;
3331 rc
= do_QDIO(CARD_DDEV(queue
->card
), qdio_flags
,
3332 queue
->queue_no
, index
, count
);
3333 if (queue
->card
->options
.performance_stats
)
3334 queue
->card
->perf_stats
.outbound_do_qdio_time
+=
3336 queue
->card
->perf_stats
.outbound_do_qdio_start_time
;
3337 atomic_add(count
, &queue
->used_buffers
);
3339 queue
->card
->stats
.tx_errors
+= count
;
3340 /* ignore temporary SIGA errors without busy condition */
3341 if (rc
== QDIO_ERROR_SIGA_TARGET
)
3343 QETH_CARD_TEXT(queue
->card
, 2, "flushbuf");
3344 QETH_CARD_TEXT_(queue
->card
, 2, " q%d", queue
->queue_no
);
3345 QETH_CARD_TEXT_(queue
->card
, 2, " idx%d", index
);
3346 QETH_CARD_TEXT_(queue
->card
, 2, " c%d", count
);
3347 QETH_CARD_TEXT_(queue
->card
, 2, " err%d", rc
);
3349 /* this must not happen under normal circumstances. if it
3350 * happens something is really wrong -> recover */
3351 qeth_schedule_recovery(queue
->card
);
3354 if (queue
->card
->options
.performance_stats
)
3355 queue
->card
->perf_stats
.bufs_sent
+= count
;
3358 static void qeth_check_outbound_queue(struct qeth_qdio_out_q
*queue
)
3362 int q_was_packing
= 0;
3365 * check if weed have to switch to non-packing mode or if
3366 * we have to get a pci flag out on the queue
3368 if ((atomic_read(&queue
->used_buffers
) <= QETH_LOW_WATERMARK_PACK
) ||
3369 !atomic_read(&queue
->set_pci_flags_count
)) {
3370 if (atomic_xchg(&queue
->state
, QETH_OUT_Q_LOCKED_FLUSH
) ==
3371 QETH_OUT_Q_UNLOCKED
) {
3373 * If we get in here, there was no action in
3374 * do_send_packet. So, we check if there is a
3375 * packing buffer to be flushed here.
3377 netif_stop_queue(queue
->card
->dev
);
3378 index
= queue
->next_buf_to_fill
;
3379 q_was_packing
= queue
->do_pack
;
3380 /* queue->do_pack may change */
3382 flush_cnt
+= qeth_switch_to_nonpacking_if_needed(queue
);
3384 !atomic_read(&queue
->set_pci_flags_count
))
3386 qeth_flush_buffers_on_no_pci(queue
);
3387 if (queue
->card
->options
.performance_stats
&&
3389 queue
->card
->perf_stats
.bufs_sent_pack
+=
3392 qeth_flush_buffers(queue
, index
, flush_cnt
);
3393 atomic_set(&queue
->state
, QETH_OUT_Q_UNLOCKED
);
3398 void qeth_qdio_start_poll(struct ccw_device
*ccwdev
, int queue
,
3399 unsigned long card_ptr
)
3401 struct qeth_card
*card
= (struct qeth_card
*)card_ptr
;
3403 if (card
->dev
&& (card
->dev
->flags
& IFF_UP
))
3404 napi_schedule(&card
->napi
);
3406 EXPORT_SYMBOL_GPL(qeth_qdio_start_poll
);
3408 int qeth_configure_cq(struct qeth_card
*card
, enum qeth_cq cq
)
3412 if (card
->options
.cq
== QETH_CQ_NOTAVAILABLE
) {
3416 if (card
->options
.cq
== cq
) {
3421 if (card
->state
!= CARD_STATE_DOWN
&&
3422 card
->state
!= CARD_STATE_RECOVER
) {
3427 qeth_free_qdio_buffers(card
);
3428 card
->options
.cq
= cq
;
3435 EXPORT_SYMBOL_GPL(qeth_configure_cq
);
3438 static void qeth_qdio_cq_handler(struct qeth_card
*card
,
3439 unsigned int qdio_err
,
3440 unsigned int queue
, int first_element
, int count
) {
3441 struct qeth_qdio_q
*cq
= card
->qdio
.c_q
;
3445 if (!qeth_is_cq(card
, queue
))
3448 QETH_CARD_TEXT_(card
, 5, "qcqhe%d", first_element
);
3449 QETH_CARD_TEXT_(card
, 5, "qcqhc%d", count
);
3450 QETH_CARD_TEXT_(card
, 5, "qcqherr%d", qdio_err
);
3453 netif_stop_queue(card
->dev
);
3454 qeth_schedule_recovery(card
);
3458 if (card
->options
.performance_stats
) {
3459 card
->perf_stats
.cq_cnt
++;
3460 card
->perf_stats
.cq_start_time
= qeth_get_micros();
3463 for (i
= first_element
; i
< first_element
+ count
; ++i
) {
3464 int bidx
= i
% QDIO_MAX_BUFFERS_PER_Q
;
3465 struct qdio_buffer
*buffer
= &cq
->qdio_bufs
[bidx
];
3469 while (buffer
->element
[e
].addr
) {
3470 unsigned long phys_aob_addr
;
3472 phys_aob_addr
= (unsigned long) buffer
->element
[e
].addr
;
3473 qeth_qdio_handle_aob(card
, phys_aob_addr
);
3474 buffer
->element
[e
].addr
= NULL
;
3475 buffer
->element
[e
].eflags
= 0;
3476 buffer
->element
[e
].sflags
= 0;
3477 buffer
->element
[e
].length
= 0;
3482 buffer
->element
[15].eflags
= 0;
3483 buffer
->element
[15].sflags
= 0;
3485 rc
= do_QDIO(CARD_DDEV(card
), QDIO_FLAG_SYNC_INPUT
, queue
,
3486 card
->qdio
.c_q
->next_buf_to_init
,
3489 dev_warn(&card
->gdev
->dev
,
3490 "QDIO reported an error, rc=%i\n", rc
);
3491 QETH_CARD_TEXT(card
, 2, "qcqherr");
3493 card
->qdio
.c_q
->next_buf_to_init
= (card
->qdio
.c_q
->next_buf_to_init
3494 + count
) % QDIO_MAX_BUFFERS_PER_Q
;
3496 netif_wake_queue(card
->dev
);
3498 if (card
->options
.performance_stats
) {
3499 int delta_t
= qeth_get_micros();
3500 delta_t
-= card
->perf_stats
.cq_start_time
;
3501 card
->perf_stats
.cq_time
+= delta_t
;
3507 void qeth_qdio_input_handler(struct ccw_device
*ccwdev
, unsigned int qdio_err
,
3508 unsigned int queue
, int first_elem
, int count
,
3509 unsigned long card_ptr
)
3511 struct qeth_card
*card
= (struct qeth_card
*)card_ptr
;
3513 QETH_CARD_TEXT_(card
, 2, "qihq%d", queue
);
3514 QETH_CARD_TEXT_(card
, 2, "qiec%d", qdio_err
);
3516 if (qeth_is_cq(card
, queue
))
3517 qeth_qdio_cq_handler(card
, qdio_err
, queue
, first_elem
, count
);
3519 qeth_schedule_recovery(card
);
3523 EXPORT_SYMBOL_GPL(qeth_qdio_input_handler
);
3525 void qeth_qdio_output_handler(struct ccw_device
*ccwdev
,
3526 unsigned int qdio_error
, int __queue
, int first_element
,
3527 int count
, unsigned long card_ptr
)
3529 struct qeth_card
*card
= (struct qeth_card
*) card_ptr
;
3530 struct qeth_qdio_out_q
*queue
= card
->qdio
.out_qs
[__queue
];
3531 struct qeth_qdio_out_buffer
*buffer
;
3534 QETH_CARD_TEXT(card
, 6, "qdouhdl");
3535 if (qdio_error
& QDIO_ERROR_ACTIVATE_CHECK_CONDITION
) {
3536 QETH_CARD_TEXT(card
, 2, "achkcond");
3537 netif_stop_queue(card
->dev
);
3538 qeth_schedule_recovery(card
);
3541 if (card
->options
.performance_stats
) {
3542 card
->perf_stats
.outbound_handler_cnt
++;
3543 card
->perf_stats
.outbound_handler_start_time
=
3546 for (i
= first_element
; i
< (first_element
+ count
); ++i
) {
3547 int bidx
= i
% QDIO_MAX_BUFFERS_PER_Q
;
3548 buffer
= queue
->bufs
[bidx
];
3549 qeth_handle_send_error(card
, buffer
, qdio_error
);
3551 if (queue
->bufstates
&&
3552 (queue
->bufstates
[bidx
].flags
&
3553 QDIO_OUTBUF_STATE_FLAG_PENDING
) != 0) {
3554 BUG_ON(card
->options
.cq
!= QETH_CQ_ENABLED
);
3556 if (atomic_cmpxchg(&buffer
->state
,
3557 QETH_QDIO_BUF_PRIMED
,
3558 QETH_QDIO_BUF_PENDING
) ==
3559 QETH_QDIO_BUF_PRIMED
) {
3560 qeth_notify_skbs(queue
, buffer
,
3563 buffer
->aob
= queue
->bufstates
[bidx
].aob
;
3564 QETH_CARD_TEXT_(queue
->card
, 5, "pel%d", bidx
);
3565 QETH_CARD_TEXT(queue
->card
, 5, "aob");
3566 QETH_CARD_TEXT_(queue
->card
, 5, "%lx",
3567 virt_to_phys(buffer
->aob
));
3568 BUG_ON(bidx
< 0 || bidx
>= QDIO_MAX_BUFFERS_PER_Q
);
3569 if (qeth_init_qdio_out_buf(queue
, bidx
)) {
3570 QETH_CARD_TEXT(card
, 2, "outofbuf");
3571 qeth_schedule_recovery(card
);
3574 if (card
->options
.cq
== QETH_CQ_ENABLED
) {
3575 enum iucv_tx_notify n
;
3577 n
= qeth_compute_cq_notification(
3578 buffer
->buffer
->element
[15].sflags
, 0);
3579 qeth_notify_skbs(queue
, buffer
, n
);
3582 qeth_clear_output_buffer(queue
, buffer
,
3583 QETH_QDIO_BUF_EMPTY
);
3585 qeth_cleanup_handled_pending(queue
, bidx
, 0);
3587 atomic_sub(count
, &queue
->used_buffers
);
3588 /* check if we need to do something on this outbound queue */
3589 if (card
->info
.type
!= QETH_CARD_TYPE_IQD
)
3590 qeth_check_outbound_queue(queue
);
3592 netif_wake_queue(queue
->card
->dev
);
3593 if (card
->options
.performance_stats
)
3594 card
->perf_stats
.outbound_handler_time
+= qeth_get_micros() -
3595 card
->perf_stats
.outbound_handler_start_time
;
3597 EXPORT_SYMBOL_GPL(qeth_qdio_output_handler
);
3599 int qeth_get_priority_queue(struct qeth_card
*card
, struct sk_buff
*skb
,
3600 int ipv
, int cast_type
)
3602 if (!ipv
&& (card
->info
.type
== QETH_CARD_TYPE_OSD
||
3603 card
->info
.type
== QETH_CARD_TYPE_OSX
))
3604 return card
->qdio
.default_out_queue
;
3605 switch (card
->qdio
.no_out_queues
) {
3607 if (cast_type
&& card
->info
.is_multicast_different
)
3608 return card
->info
.is_multicast_different
&
3609 (card
->qdio
.no_out_queues
- 1);
3610 if (card
->qdio
.do_prio_queueing
&& (ipv
== 4)) {
3611 const u8 tos
= ip_hdr(skb
)->tos
;
3613 if (card
->qdio
.do_prio_queueing
==
3614 QETH_PRIO_Q_ING_TOS
) {
3615 if (tos
& IP_TOS_NOTIMPORTANT
)
3617 if (tos
& IP_TOS_HIGHRELIABILITY
)
3619 if (tos
& IP_TOS_HIGHTHROUGHPUT
)
3621 if (tos
& IP_TOS_LOWDELAY
)
3624 if (card
->qdio
.do_prio_queueing
==
3625 QETH_PRIO_Q_ING_PREC
)
3626 return 3 - (tos
>> 6);
3627 } else if (card
->qdio
.do_prio_queueing
&& (ipv
== 6)) {
3630 return card
->qdio
.default_out_queue
;
3631 case 1: /* fallthrough for single-out-queue 1920-device */
3633 return card
->qdio
.default_out_queue
;
3636 EXPORT_SYMBOL_GPL(qeth_get_priority_queue
);
3638 int qeth_get_elements_no(struct qeth_card
*card
, void *hdr
,
3639 struct sk_buff
*skb
, int elems
)
3641 int dlen
= skb
->len
- skb
->data_len
;
3642 int elements_needed
= PFN_UP((unsigned long)skb
->data
+ dlen
- 1) -
3643 PFN_DOWN((unsigned long)skb
->data
);
3645 elements_needed
+= skb_shinfo(skb
)->nr_frags
;
3646 if ((elements_needed
+ elems
) > QETH_MAX_BUFFER_ELEMENTS(card
)) {
3647 QETH_DBF_MESSAGE(2, "Invalid size of IP packet "
3648 "(Number=%d / Length=%d). Discarded.\n",
3649 (elements_needed
+elems
), skb
->len
);
3652 return elements_needed
;
3654 EXPORT_SYMBOL_GPL(qeth_get_elements_no
);
3656 int qeth_hdr_chk_and_bounce(struct sk_buff
*skb
, int len
)
3658 int hroom
, inpage
, rest
;
3660 if (((unsigned long)skb
->data
& PAGE_MASK
) !=
3661 (((unsigned long)skb
->data
+ len
- 1) & PAGE_MASK
)) {
3662 hroom
= skb_headroom(skb
);
3663 inpage
= PAGE_SIZE
- ((unsigned long) skb
->data
% PAGE_SIZE
);
3664 rest
= len
- inpage
;
3667 memmove(skb
->data
- rest
, skb
->data
, skb
->len
- skb
->data_len
);
3669 QETH_DBF_MESSAGE(2, "skb bounce len: %d rest: %d\n", len
, rest
);
3673 EXPORT_SYMBOL_GPL(qeth_hdr_chk_and_bounce
);
3675 static inline void __qeth_fill_buffer(struct sk_buff
*skb
,
3676 struct qdio_buffer
*buffer
, int is_tso
, int *next_element_to_fill
,
3679 int length
= skb
->len
- skb
->data_len
;
3684 struct skb_frag_struct
*frag
;
3686 element
= *next_element_to_fill
;
3688 first_lap
= (is_tso
== 0 ? 1 : 0);
3691 data
= skb
->data
+ offset
;
3696 while (length
> 0) {
3697 /* length_here is the remaining amount of data in this page */
3698 length_here
= PAGE_SIZE
- ((unsigned long) data
% PAGE_SIZE
);
3699 if (length
< length_here
)
3700 length_here
= length
;
3702 buffer
->element
[element
].addr
= data
;
3703 buffer
->element
[element
].length
= length_here
;
3704 length
-= length_here
;
3707 if (skb_shinfo(skb
)->nr_frags
)
3708 buffer
->element
[element
].eflags
=
3709 SBAL_EFLAGS_FIRST_FRAG
;
3711 buffer
->element
[element
].eflags
= 0;
3713 buffer
->element
[element
].eflags
=
3714 SBAL_EFLAGS_MIDDLE_FRAG
;
3717 buffer
->element
[element
].eflags
=
3718 SBAL_EFLAGS_FIRST_FRAG
;
3720 buffer
->element
[element
].eflags
=
3721 SBAL_EFLAGS_MIDDLE_FRAG
;
3723 data
+= length_here
;
3728 for (cnt
= 0; cnt
< skb_shinfo(skb
)->nr_frags
; cnt
++) {
3729 frag
= &skb_shinfo(skb
)->frags
[cnt
];
3730 buffer
->element
[element
].addr
= (char *)
3731 page_to_phys(skb_frag_page(frag
))
3732 + frag
->page_offset
;
3733 buffer
->element
[element
].length
= frag
->size
;
3734 buffer
->element
[element
].eflags
= SBAL_EFLAGS_MIDDLE_FRAG
;
3738 if (buffer
->element
[element
- 1].eflags
)
3739 buffer
->element
[element
- 1].eflags
= SBAL_EFLAGS_LAST_FRAG
;
3740 *next_element_to_fill
= element
;
3743 static inline int qeth_fill_buffer(struct qeth_qdio_out_q
*queue
,
3744 struct qeth_qdio_out_buffer
*buf
, struct sk_buff
*skb
,
3745 struct qeth_hdr
*hdr
, int offset
, int hd_len
)
3747 struct qdio_buffer
*buffer
;
3748 int flush_cnt
= 0, hdr_len
, large_send
= 0;
3750 buffer
= buf
->buffer
;
3751 atomic_inc(&skb
->users
);
3752 skb_queue_tail(&buf
->skb_list
, skb
);
3754 /*check first on TSO ....*/
3755 if (hdr
->hdr
.l3
.id
== QETH_HEADER_TYPE_TSO
) {
3756 int element
= buf
->next_element_to_fill
;
3758 hdr_len
= sizeof(struct qeth_hdr_tso
) +
3759 ((struct qeth_hdr_tso
*)hdr
)->ext
.dg_hdr_len
;
3760 /*fill first buffer entry only with header information */
3761 buffer
->element
[element
].addr
= skb
->data
;
3762 buffer
->element
[element
].length
= hdr_len
;
3763 buffer
->element
[element
].eflags
= SBAL_EFLAGS_FIRST_FRAG
;
3764 buf
->next_element_to_fill
++;
3765 skb
->data
+= hdr_len
;
3766 skb
->len
-= hdr_len
;
3771 int element
= buf
->next_element_to_fill
;
3772 buffer
->element
[element
].addr
= hdr
;
3773 buffer
->element
[element
].length
= sizeof(struct qeth_hdr
) +
3775 buffer
->element
[element
].eflags
= SBAL_EFLAGS_FIRST_FRAG
;
3776 buf
->is_header
[element
] = 1;
3777 buf
->next_element_to_fill
++;
3780 __qeth_fill_buffer(skb
, buffer
, large_send
,
3781 (int *)&buf
->next_element_to_fill
, offset
);
3783 if (!queue
->do_pack
) {
3784 QETH_CARD_TEXT(queue
->card
, 6, "fillbfnp");
3785 /* set state to PRIMED -> will be flushed */
3786 atomic_set(&buf
->state
, QETH_QDIO_BUF_PRIMED
);
3789 QETH_CARD_TEXT(queue
->card
, 6, "fillbfpa");
3790 if (queue
->card
->options
.performance_stats
)
3791 queue
->card
->perf_stats
.skbs_sent_pack
++;
3792 if (buf
->next_element_to_fill
>=
3793 QETH_MAX_BUFFER_ELEMENTS(queue
->card
)) {
3795 * packed buffer if full -> set state PRIMED
3796 * -> will be flushed
3798 atomic_set(&buf
->state
, QETH_QDIO_BUF_PRIMED
);
3805 int qeth_do_send_packet_fast(struct qeth_card
*card
,
3806 struct qeth_qdio_out_q
*queue
, struct sk_buff
*skb
,
3807 struct qeth_hdr
*hdr
, int elements_needed
,
3808 int offset
, int hd_len
)
3810 struct qeth_qdio_out_buffer
*buffer
;
3813 /* spin until we get the queue ... */
3814 while (atomic_cmpxchg(&queue
->state
, QETH_OUT_Q_UNLOCKED
,
3815 QETH_OUT_Q_LOCKED
) != QETH_OUT_Q_UNLOCKED
);
3816 /* ... now we've got the queue */
3817 index
= queue
->next_buf_to_fill
;
3818 buffer
= queue
->bufs
[queue
->next_buf_to_fill
];
3820 * check if buffer is empty to make sure that we do not 'overtake'
3821 * ourselves and try to fill a buffer that is already primed
3823 if (atomic_read(&buffer
->state
) != QETH_QDIO_BUF_EMPTY
)
3825 queue
->next_buf_to_fill
= (queue
->next_buf_to_fill
+ 1) %
3826 QDIO_MAX_BUFFERS_PER_Q
;
3827 atomic_set(&queue
->state
, QETH_OUT_Q_UNLOCKED
);
3828 qeth_fill_buffer(queue
, buffer
, skb
, hdr
, offset
, hd_len
);
3829 qeth_flush_buffers(queue
, index
, 1);
3832 atomic_set(&queue
->state
, QETH_OUT_Q_UNLOCKED
);
3835 EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast
);
3837 int qeth_do_send_packet(struct qeth_card
*card
, struct qeth_qdio_out_q
*queue
,
3838 struct sk_buff
*skb
, struct qeth_hdr
*hdr
,
3839 int elements_needed
)
3841 struct qeth_qdio_out_buffer
*buffer
;
3843 int flush_count
= 0;
3848 /* spin until we get the queue ... */
3849 while (atomic_cmpxchg(&queue
->state
, QETH_OUT_Q_UNLOCKED
,
3850 QETH_OUT_Q_LOCKED
) != QETH_OUT_Q_UNLOCKED
);
3851 start_index
= queue
->next_buf_to_fill
;
3852 buffer
= queue
->bufs
[queue
->next_buf_to_fill
];
3854 * check if buffer is empty to make sure that we do not 'overtake'
3855 * ourselves and try to fill a buffer that is already primed
3857 if (atomic_read(&buffer
->state
) != QETH_QDIO_BUF_EMPTY
) {
3858 atomic_set(&queue
->state
, QETH_OUT_Q_UNLOCKED
);
3861 /* check if we need to switch packing state of this queue */
3862 qeth_switch_to_packing_if_needed(queue
);
3863 if (queue
->do_pack
) {
3865 /* does packet fit in current buffer? */
3866 if ((QETH_MAX_BUFFER_ELEMENTS(card
) -
3867 buffer
->next_element_to_fill
) < elements_needed
) {
3868 /* ... no -> set state PRIMED */
3869 atomic_set(&buffer
->state
, QETH_QDIO_BUF_PRIMED
);
3871 queue
->next_buf_to_fill
=
3872 (queue
->next_buf_to_fill
+ 1) %
3873 QDIO_MAX_BUFFERS_PER_Q
;
3874 buffer
= queue
->bufs
[queue
->next_buf_to_fill
];
3875 /* we did a step forward, so check buffer state
3877 if (atomic_read(&buffer
->state
) !=
3878 QETH_QDIO_BUF_EMPTY
) {
3879 qeth_flush_buffers(queue
, start_index
,
3881 atomic_set(&queue
->state
,
3882 QETH_OUT_Q_UNLOCKED
);
3887 tmp
= qeth_fill_buffer(queue
, buffer
, skb
, hdr
, -1, 0);
3888 queue
->next_buf_to_fill
= (queue
->next_buf_to_fill
+ tmp
) %
3889 QDIO_MAX_BUFFERS_PER_Q
;
3892 qeth_flush_buffers(queue
, start_index
, flush_count
);
3893 else if (!atomic_read(&queue
->set_pci_flags_count
))
3894 atomic_xchg(&queue
->state
, QETH_OUT_Q_LOCKED_FLUSH
);
3896 * queue->state will go from LOCKED -> UNLOCKED or from
3897 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
3898 * (switch packing state or flush buffer to get another pci flag out).
3899 * In that case we will enter this loop
3901 while (atomic_dec_return(&queue
->state
)) {
3903 start_index
= queue
->next_buf_to_fill
;
3904 /* check if we can go back to non-packing state */
3905 flush_count
+= qeth_switch_to_nonpacking_if_needed(queue
);
3907 * check if we need to flush a packing buffer to get a pci
3908 * flag out on the queue
3910 if (!flush_count
&& !atomic_read(&queue
->set_pci_flags_count
))
3911 flush_count
+= qeth_flush_buffers_on_no_pci(queue
);
3913 qeth_flush_buffers(queue
, start_index
, flush_count
);
3915 /* at this point the queue is UNLOCKED again */
3916 if (queue
->card
->options
.performance_stats
&& do_pack
)
3917 queue
->card
->perf_stats
.bufs_sent_pack
+= flush_count
;
3921 EXPORT_SYMBOL_GPL(qeth_do_send_packet
);
3923 static int qeth_setadp_promisc_mode_cb(struct qeth_card
*card
,
3924 struct qeth_reply
*reply
, unsigned long data
)
3926 struct qeth_ipa_cmd
*cmd
;
3927 struct qeth_ipacmd_setadpparms
*setparms
;
3929 QETH_CARD_TEXT(card
, 4, "prmadpcb");
3931 cmd
= (struct qeth_ipa_cmd
*) data
;
3932 setparms
= &(cmd
->data
.setadapterparms
);
3934 qeth_default_setadapterparms_cb(card
, reply
, (unsigned long)cmd
);
3935 if (cmd
->hdr
.return_code
) {
3936 QETH_CARD_TEXT_(card
, 4, "prmrc%2.2x", cmd
->hdr
.return_code
);
3937 setparms
->data
.mode
= SET_PROMISC_MODE_OFF
;
3939 card
->info
.promisc_mode
= setparms
->data
.mode
;
3943 void qeth_setadp_promisc_mode(struct qeth_card
*card
)
3945 enum qeth_ipa_promisc_modes mode
;
3946 struct net_device
*dev
= card
->dev
;
3947 struct qeth_cmd_buffer
*iob
;
3948 struct qeth_ipa_cmd
*cmd
;
3950 QETH_CARD_TEXT(card
, 4, "setprom");
3952 if (((dev
->flags
& IFF_PROMISC
) &&
3953 (card
->info
.promisc_mode
== SET_PROMISC_MODE_ON
)) ||
3954 (!(dev
->flags
& IFF_PROMISC
) &&
3955 (card
->info
.promisc_mode
== SET_PROMISC_MODE_OFF
)))
3957 mode
= SET_PROMISC_MODE_OFF
;
3958 if (dev
->flags
& IFF_PROMISC
)
3959 mode
= SET_PROMISC_MODE_ON
;
3960 QETH_CARD_TEXT_(card
, 4, "mode:%x", mode
);
3962 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_SET_PROMISC_MODE
,
3963 sizeof(struct qeth_ipacmd_setadpparms
));
3964 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+ IPA_PDU_HEADER_SIZE
);
3965 cmd
->data
.setadapterparms
.data
.mode
= mode
;
3966 qeth_send_ipa_cmd(card
, iob
, qeth_setadp_promisc_mode_cb
, NULL
);
3968 EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode
);
3970 int qeth_change_mtu(struct net_device
*dev
, int new_mtu
)
3972 struct qeth_card
*card
;
3975 card
= dev
->ml_priv
;
3977 QETH_CARD_TEXT(card
, 4, "chgmtu");
3978 sprintf(dbf_text
, "%8x", new_mtu
);
3979 QETH_CARD_TEXT(card
, 4, dbf_text
);
3983 if (new_mtu
> 65535)
3985 if ((!qeth_is_supported(card
, IPA_IP_FRAGMENTATION
)) &&
3986 (!qeth_mtu_is_valid(card
, new_mtu
)))
3991 EXPORT_SYMBOL_GPL(qeth_change_mtu
);
3993 struct net_device_stats
*qeth_get_stats(struct net_device
*dev
)
3995 struct qeth_card
*card
;
3997 card
= dev
->ml_priv
;
3999 QETH_CARD_TEXT(card
, 5, "getstat");
4001 return &card
->stats
;
4003 EXPORT_SYMBOL_GPL(qeth_get_stats
);
4005 static int qeth_setadpparms_change_macaddr_cb(struct qeth_card
*card
,
4006 struct qeth_reply
*reply
, unsigned long data
)
4008 struct qeth_ipa_cmd
*cmd
;
4010 QETH_CARD_TEXT(card
, 4, "chgmaccb");
4012 cmd
= (struct qeth_ipa_cmd
*) data
;
4013 if (!card
->options
.layer2
||
4014 !(card
->info
.mac_bits
& QETH_LAYER2_MAC_READ
)) {
4015 memcpy(card
->dev
->dev_addr
,
4016 &cmd
->data
.setadapterparms
.data
.change_addr
.addr
,
4018 card
->info
.mac_bits
|= QETH_LAYER2_MAC_READ
;
4020 qeth_default_setadapterparms_cb(card
, reply
, (unsigned long) cmd
);
4024 int qeth_setadpparms_change_macaddr(struct qeth_card
*card
)
4027 struct qeth_cmd_buffer
*iob
;
4028 struct qeth_ipa_cmd
*cmd
;
4030 QETH_CARD_TEXT(card
, 4, "chgmac");
4032 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_ALTER_MAC_ADDRESS
,
4033 sizeof(struct qeth_ipacmd_setadpparms
));
4034 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
4035 cmd
->data
.setadapterparms
.data
.change_addr
.cmd
= CHANGE_ADDR_READ_MAC
;
4036 cmd
->data
.setadapterparms
.data
.change_addr
.addr_size
= OSA_ADDR_LEN
;
4037 memcpy(&cmd
->data
.setadapterparms
.data
.change_addr
.addr
,
4038 card
->dev
->dev_addr
, OSA_ADDR_LEN
);
4039 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_setadpparms_change_macaddr_cb
,
4043 EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr
);
4045 static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card
*card
,
4046 struct qeth_reply
*reply
, unsigned long data
)
4048 struct qeth_ipa_cmd
*cmd
;
4049 struct qeth_set_access_ctrl
*access_ctrl_req
;
4051 QETH_CARD_TEXT(card
, 4, "setaccb");
4053 cmd
= (struct qeth_ipa_cmd
*) data
;
4054 access_ctrl_req
= &cmd
->data
.setadapterparms
.data
.set_access_ctrl
;
4055 QETH_DBF_TEXT_(SETUP
, 2, "setaccb");
4056 QETH_DBF_TEXT_(SETUP
, 2, "%s", card
->gdev
->dev
.kobj
.name
);
4057 QETH_DBF_TEXT_(SETUP
, 2, "rc=%d",
4058 cmd
->data
.setadapterparms
.hdr
.return_code
);
4059 switch (cmd
->data
.setadapterparms
.hdr
.return_code
) {
4060 case SET_ACCESS_CTRL_RC_SUCCESS
:
4061 case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED
:
4062 case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED
:
4064 card
->options
.isolation
= access_ctrl_req
->subcmd_code
;
4065 if (card
->options
.isolation
== ISOLATION_MODE_NONE
) {
4066 dev_info(&card
->gdev
->dev
,
4067 "QDIO data connection isolation is deactivated\n");
4069 dev_info(&card
->gdev
->dev
,
4070 "QDIO data connection isolation is activated\n");
4072 QETH_DBF_MESSAGE(3, "OK:SET_ACCESS_CTRL(%s, %d)==%d\n",
4073 card
->gdev
->dev
.kobj
.name
,
4074 access_ctrl_req
->subcmd_code
,
4075 cmd
->data
.setadapterparms
.hdr
.return_code
);
4078 case SET_ACCESS_CTRL_RC_NOT_SUPPORTED
:
4080 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%s,%d)==%d\n",
4081 card
->gdev
->dev
.kobj
.name
,
4082 access_ctrl_req
->subcmd_code
,
4083 cmd
->data
.setadapterparms
.hdr
.return_code
);
4084 dev_err(&card
->gdev
->dev
, "Adapter does not "
4085 "support QDIO data connection isolation\n");
4087 /* ensure isolation mode is "none" */
4088 card
->options
.isolation
= ISOLATION_MODE_NONE
;
4091 case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER
:
4093 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d\n",
4094 card
->gdev
->dev
.kobj
.name
,
4095 access_ctrl_req
->subcmd_code
,
4096 cmd
->data
.setadapterparms
.hdr
.return_code
);
4097 dev_err(&card
->gdev
->dev
,
4098 "Adapter is dedicated. "
4099 "QDIO data connection isolation not supported\n");
4101 /* ensure isolation mode is "none" */
4102 card
->options
.isolation
= ISOLATION_MODE_NONE
;
4105 case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF
:
4107 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d\n",
4108 card
->gdev
->dev
.kobj
.name
,
4109 access_ctrl_req
->subcmd_code
,
4110 cmd
->data
.setadapterparms
.hdr
.return_code
);
4111 dev_err(&card
->gdev
->dev
,
4112 "TSO does not permit QDIO data connection isolation\n");
4114 /* ensure isolation mode is "none" */
4115 card
->options
.isolation
= ISOLATION_MODE_NONE
;
4120 /* this should never happen */
4121 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d"
4123 card
->gdev
->dev
.kobj
.name
,
4124 access_ctrl_req
->subcmd_code
,
4125 cmd
->data
.setadapterparms
.hdr
.return_code
);
4127 /* ensure isolation mode is "none" */
4128 card
->options
.isolation
= ISOLATION_MODE_NONE
;
4132 qeth_default_setadapterparms_cb(card
, reply
, (unsigned long) cmd
);
4136 static int qeth_setadpparms_set_access_ctrl(struct qeth_card
*card
,
4137 enum qeth_ipa_isolation_modes isolation
)
4140 struct qeth_cmd_buffer
*iob
;
4141 struct qeth_ipa_cmd
*cmd
;
4142 struct qeth_set_access_ctrl
*access_ctrl_req
;
4144 QETH_CARD_TEXT(card
, 4, "setacctl");
4146 QETH_DBF_TEXT_(SETUP
, 2, "setacctl");
4147 QETH_DBF_TEXT_(SETUP
, 2, "%s", card
->gdev
->dev
.kobj
.name
);
4149 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_SET_ACCESS_CONTROL
,
4150 sizeof(struct qeth_ipacmd_setadpparms_hdr
) +
4151 sizeof(struct qeth_set_access_ctrl
));
4152 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
4153 access_ctrl_req
= &cmd
->data
.setadapterparms
.data
.set_access_ctrl
;
4154 access_ctrl_req
->subcmd_code
= isolation
;
4156 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_setadpparms_set_access_ctrl_cb
,
4158 QETH_DBF_TEXT_(SETUP
, 2, "rc=%d", rc
);
4162 int qeth_set_access_ctrl_online(struct qeth_card
*card
)
4166 QETH_CARD_TEXT(card
, 4, "setactlo");
4168 if ((card
->info
.type
== QETH_CARD_TYPE_OSD
||
4169 card
->info
.type
== QETH_CARD_TYPE_OSX
) &&
4170 qeth_adp_supported(card
, IPA_SETADP_SET_ACCESS_CONTROL
)) {
4171 rc
= qeth_setadpparms_set_access_ctrl(card
,
4172 card
->options
.isolation
);
4175 "IPA(SET_ACCESS_CTRL,%s,%d) sent failed\n",
4176 card
->gdev
->dev
.kobj
.name
,
4179 } else if (card
->options
.isolation
!= ISOLATION_MODE_NONE
) {
4180 card
->options
.isolation
= ISOLATION_MODE_NONE
;
4182 dev_err(&card
->gdev
->dev
, "Adapter does not "
4183 "support QDIO data connection isolation\n");
4188 EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online
);
4190 void qeth_tx_timeout(struct net_device
*dev
)
4192 struct qeth_card
*card
;
4194 card
= dev
->ml_priv
;
4195 QETH_CARD_TEXT(card
, 4, "txtimeo");
4196 card
->stats
.tx_errors
++;
4197 qeth_schedule_recovery(card
);
4199 EXPORT_SYMBOL_GPL(qeth_tx_timeout
);
4201 int qeth_mdio_read(struct net_device
*dev
, int phy_id
, int regnum
)
4203 struct qeth_card
*card
= dev
->ml_priv
;
4207 case MII_BMCR
: /* Basic mode control register */
4209 if ((card
->info
.link_type
!= QETH_LINK_TYPE_GBIT_ETH
) &&
4210 (card
->info
.link_type
!= QETH_LINK_TYPE_OSN
) &&
4211 (card
->info
.link_type
!= QETH_LINK_TYPE_10GBIT_ETH
))
4212 rc
|= BMCR_SPEED100
;
4214 case MII_BMSR
: /* Basic mode status register */
4215 rc
= BMSR_ERCAP
| BMSR_ANEGCOMPLETE
| BMSR_LSTATUS
|
4216 BMSR_10HALF
| BMSR_10FULL
| BMSR_100HALF
| BMSR_100FULL
|
4219 case MII_PHYSID1
: /* PHYS ID 1 */
4220 rc
= (dev
->dev_addr
[0] << 16) | (dev
->dev_addr
[1] << 8) |
4222 rc
= (rc
>> 5) & 0xFFFF;
4224 case MII_PHYSID2
: /* PHYS ID 2 */
4225 rc
= (dev
->dev_addr
[2] << 10) & 0xFFFF;
4227 case MII_ADVERTISE
: /* Advertisement control reg */
4230 case MII_LPA
: /* Link partner ability reg */
4231 rc
= LPA_10HALF
| LPA_10FULL
| LPA_100HALF
| LPA_100FULL
|
4232 LPA_100BASE4
| LPA_LPACK
;
4234 case MII_EXPANSION
: /* Expansion register */
4236 case MII_DCOUNTER
: /* disconnect counter */
4238 case MII_FCSCOUNTER
: /* false carrier counter */
4240 case MII_NWAYTEST
: /* N-way auto-neg test register */
4242 case MII_RERRCOUNTER
: /* rx error counter */
4243 rc
= card
->stats
.rx_errors
;
4245 case MII_SREVISION
: /* silicon revision */
4247 case MII_RESV1
: /* reserved 1 */
4249 case MII_LBRERROR
: /* loopback, rx, bypass error */
4251 case MII_PHYADDR
: /* physical address */
4253 case MII_RESV2
: /* reserved 2 */
4255 case MII_TPISTATUS
: /* TPI status for 10mbps */
4257 case MII_NCONFIG
: /* network interface config */
4264 EXPORT_SYMBOL_GPL(qeth_mdio_read
);
4266 static int qeth_send_ipa_snmp_cmd(struct qeth_card
*card
,
4267 struct qeth_cmd_buffer
*iob
, int len
,
4268 int (*reply_cb
)(struct qeth_card
*, struct qeth_reply
*,
4274 QETH_CARD_TEXT(card
, 4, "sendsnmp");
4276 memcpy(iob
->data
, IPA_PDU_HEADER
, IPA_PDU_HEADER_SIZE
);
4277 memcpy(QETH_IPA_CMD_DEST_ADDR(iob
->data
),
4278 &card
->token
.ulp_connection_r
, QETH_MPC_TOKEN_LENGTH
);
4279 /* adjust PDU length fields in IPA_PDU_HEADER */
4280 s1
= (u32
) IPA_PDU_HEADER_SIZE
+ len
;
4282 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob
->data
), &s1
, 2);
4283 memcpy(QETH_IPA_PDU_LEN_PDU1(iob
->data
), &s2
, 2);
4284 memcpy(QETH_IPA_PDU_LEN_PDU2(iob
->data
), &s2
, 2);
4285 memcpy(QETH_IPA_PDU_LEN_PDU3(iob
->data
), &s2
, 2);
4286 return qeth_send_control_data(card
, IPA_PDU_HEADER_SIZE
+ len
, iob
,
4287 reply_cb
, reply_param
);
4290 static int qeth_snmp_command_cb(struct qeth_card
*card
,
4291 struct qeth_reply
*reply
, unsigned long sdata
)
4293 struct qeth_ipa_cmd
*cmd
;
4294 struct qeth_arp_query_info
*qinfo
;
4295 struct qeth_snmp_cmd
*snmp
;
4296 unsigned char *data
;
4299 QETH_CARD_TEXT(card
, 3, "snpcmdcb");
4301 cmd
= (struct qeth_ipa_cmd
*) sdata
;
4302 data
= (unsigned char *)((char *)cmd
- reply
->offset
);
4303 qinfo
= (struct qeth_arp_query_info
*) reply
->param
;
4304 snmp
= &cmd
->data
.setadapterparms
.data
.snmp
;
4306 if (cmd
->hdr
.return_code
) {
4307 QETH_CARD_TEXT_(card
, 4, "scer1%i", cmd
->hdr
.return_code
);
4310 if (cmd
->data
.setadapterparms
.hdr
.return_code
) {
4311 cmd
->hdr
.return_code
=
4312 cmd
->data
.setadapterparms
.hdr
.return_code
;
4313 QETH_CARD_TEXT_(card
, 4, "scer2%i", cmd
->hdr
.return_code
);
4316 data_len
= *((__u16
*)QETH_IPA_PDU_LEN_PDU1(data
));
4317 if (cmd
->data
.setadapterparms
.hdr
.seq_no
== 1)
4318 data_len
-= (__u16
)((char *)&snmp
->data
- (char *)cmd
);
4320 data_len
-= (__u16
)((char *)&snmp
->request
- (char *)cmd
);
4322 /* check if there is enough room in userspace */
4323 if ((qinfo
->udata_len
- qinfo
->udata_offset
) < data_len
) {
4324 QETH_CARD_TEXT_(card
, 4, "scer3%i", -ENOMEM
);
4325 cmd
->hdr
.return_code
= IPA_RC_ENOMEM
;
4328 QETH_CARD_TEXT_(card
, 4, "snore%i",
4329 cmd
->data
.setadapterparms
.hdr
.used_total
);
4330 QETH_CARD_TEXT_(card
, 4, "sseqn%i",
4331 cmd
->data
.setadapterparms
.hdr
.seq_no
);
4332 /*copy entries to user buffer*/
4333 if (cmd
->data
.setadapterparms
.hdr
.seq_no
== 1) {
4334 memcpy(qinfo
->udata
+ qinfo
->udata_offset
,
4336 data_len
+ offsetof(struct qeth_snmp_cmd
, data
));
4337 qinfo
->udata_offset
+= offsetof(struct qeth_snmp_cmd
, data
);
4339 memcpy(qinfo
->udata
+ qinfo
->udata_offset
,
4340 (char *)&snmp
->request
, data_len
);
4342 qinfo
->udata_offset
+= data_len
;
4343 /* check if all replies received ... */
4344 QETH_CARD_TEXT_(card
, 4, "srtot%i",
4345 cmd
->data
.setadapterparms
.hdr
.used_total
);
4346 QETH_CARD_TEXT_(card
, 4, "srseq%i",
4347 cmd
->data
.setadapterparms
.hdr
.seq_no
);
4348 if (cmd
->data
.setadapterparms
.hdr
.seq_no
<
4349 cmd
->data
.setadapterparms
.hdr
.used_total
)
4354 int qeth_snmp_command(struct qeth_card
*card
, char __user
*udata
)
4356 struct qeth_cmd_buffer
*iob
;
4357 struct qeth_ipa_cmd
*cmd
;
4358 struct qeth_snmp_ureq
*ureq
;
4360 struct qeth_arp_query_info qinfo
= {0, };
4363 QETH_CARD_TEXT(card
, 3, "snmpcmd");
4365 if (card
->info
.guestlan
)
4368 if ((!qeth_adp_supported(card
, IPA_SETADP_SET_SNMP_CONTROL
)) &&
4369 (!card
->options
.layer2
)) {
4372 /* skip 4 bytes (data_len struct member) to get req_len */
4373 if (copy_from_user(&req_len
, udata
+ sizeof(int), sizeof(int)))
4375 ureq
= memdup_user(udata
, req_len
+ sizeof(struct qeth_snmp_ureq_hdr
));
4377 QETH_CARD_TEXT(card
, 2, "snmpnome");
4378 return PTR_ERR(ureq
);
4380 qinfo
.udata_len
= ureq
->hdr
.data_len
;
4381 qinfo
.udata
= kzalloc(qinfo
.udata_len
, GFP_KERNEL
);
4386 qinfo
.udata_offset
= sizeof(struct qeth_snmp_ureq_hdr
);
4388 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_SET_SNMP_CONTROL
,
4389 QETH_SNMP_SETADP_CMDLENGTH
+ req_len
);
4390 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
4391 memcpy(&cmd
->data
.setadapterparms
.data
.snmp
, &ureq
->cmd
, req_len
);
4392 rc
= qeth_send_ipa_snmp_cmd(card
, iob
, QETH_SETADP_BASE_LEN
+ req_len
,
4393 qeth_snmp_command_cb
, (void *)&qinfo
);
4395 QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n",
4396 QETH_CARD_IFNAME(card
), rc
);
4398 if (copy_to_user(udata
, qinfo
.udata
, qinfo
.udata_len
))
4406 EXPORT_SYMBOL_GPL(qeth_snmp_command
);
4408 static int qeth_setadpparms_query_oat_cb(struct qeth_card
*card
,
4409 struct qeth_reply
*reply
, unsigned long data
)
4411 struct qeth_ipa_cmd
*cmd
;
4412 struct qeth_qoat_priv
*priv
;
4416 QETH_CARD_TEXT(card
, 3, "qoatcb");
4418 cmd
= (struct qeth_ipa_cmd
*)data
;
4419 priv
= (struct qeth_qoat_priv
*)reply
->param
;
4420 resdatalen
= cmd
->data
.setadapterparms
.hdr
.cmdlength
;
4421 resdata
= (char *)data
+ 28;
4423 if (resdatalen
> (priv
->buffer_len
- priv
->response_len
)) {
4424 cmd
->hdr
.return_code
= IPA_RC_FFFF
;
4428 memcpy((priv
->buffer
+ priv
->response_len
), resdata
,
4430 priv
->response_len
+= resdatalen
;
4432 if (cmd
->data
.setadapterparms
.hdr
.seq_no
<
4433 cmd
->data
.setadapterparms
.hdr
.used_total
)
4438 int qeth_query_oat_command(struct qeth_card
*card
, char __user
*udata
)
4441 struct qeth_cmd_buffer
*iob
;
4442 struct qeth_ipa_cmd
*cmd
;
4443 struct qeth_query_oat
*oat_req
;
4444 struct qeth_query_oat_data oat_data
;
4445 struct qeth_qoat_priv priv
;
4448 QETH_CARD_TEXT(card
, 3, "qoatcmd");
4450 if (!qeth_adp_supported(card
, IPA_SETADP_QUERY_OAT
)) {
4455 if (copy_from_user(&oat_data
, udata
,
4456 sizeof(struct qeth_query_oat_data
))) {
4461 priv
.buffer_len
= oat_data
.buffer_len
;
4462 priv
.response_len
= 0;
4463 priv
.buffer
= kzalloc(oat_data
.buffer_len
, GFP_KERNEL
);
4469 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_QUERY_OAT
,
4470 sizeof(struct qeth_ipacmd_setadpparms_hdr
) +
4471 sizeof(struct qeth_query_oat
));
4472 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
4473 oat_req
= &cmd
->data
.setadapterparms
.data
.query_oat
;
4474 oat_req
->subcmd_code
= oat_data
.command
;
4476 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_setadpparms_query_oat_cb
,
4479 if (is_compat_task())
4480 tmp
= compat_ptr(oat_data
.ptr
);
4482 tmp
= (void __user
*)(unsigned long)oat_data
.ptr
;
4484 if (copy_to_user(tmp
, priv
.buffer
,
4485 priv
.response_len
)) {
4490 oat_data
.response_len
= priv
.response_len
;
4492 if (copy_to_user(udata
, &oat_data
,
4493 sizeof(struct qeth_query_oat_data
)))
4496 if (rc
== IPA_RC_FFFF
)
4504 EXPORT_SYMBOL_GPL(qeth_query_oat_command
);
4506 static inline int qeth_get_qdio_q_format(struct qeth_card
*card
)
4508 switch (card
->info
.type
) {
4509 case QETH_CARD_TYPE_IQD
:
4516 static void qeth_determine_capabilities(struct qeth_card
*card
)
4521 struct ccw_device
*ddev
;
4522 int ddev_offline
= 0;
4524 QETH_DBF_TEXT(SETUP
, 2, "detcapab");
4525 ddev
= CARD_DDEV(card
);
4526 if (!ddev
->online
) {
4528 rc
= ccw_device_set_online(ddev
);
4530 QETH_DBF_TEXT_(SETUP
, 2, "3err%d", rc
);
4535 rc
= qeth_read_conf_data(card
, (void **) &prcd
, &length
);
4537 QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n",
4538 dev_name(&card
->gdev
->dev
), rc
);
4539 QETH_DBF_TEXT_(SETUP
, 2, "5err%d", rc
);
4542 qeth_configure_unitaddr(card
, prcd
);
4543 qeth_configure_blkt_default(card
, prcd
);
4546 rc
= qdio_get_ssqd_desc(ddev
, &card
->ssqd
);
4548 QETH_DBF_TEXT_(SETUP
, 2, "6err%d", rc
);
4550 QETH_DBF_TEXT_(SETUP
, 2, "qfmt%d", card
->ssqd
.qfmt
);
4551 QETH_DBF_TEXT_(SETUP
, 2, "%d", card
->ssqd
.qdioac1
);
4552 QETH_DBF_TEXT_(SETUP
, 2, "%d", card
->ssqd
.qdioac3
);
4553 QETH_DBF_TEXT_(SETUP
, 2, "icnt%d", card
->ssqd
.icnt
);
4554 if (!((card
->ssqd
.qfmt
!= QDIO_IQDIO_QFMT
) ||
4555 ((card
->ssqd
.qdioac1
& CHSC_AC1_INITIATE_INPUTQ
) == 0) ||
4556 ((card
->ssqd
.qdioac3
& CHSC_AC3_FORMAT2_CQ_AVAILABLE
) == 0))) {
4557 dev_info(&card
->gdev
->dev
,
4558 "Completion Queueing supported\n");
4560 card
->options
.cq
= QETH_CQ_NOTAVAILABLE
;
4565 if (ddev_offline
== 1)
4566 ccw_device_set_offline(ddev
);
4571 static inline void qeth_qdio_establish_cq(struct qeth_card
*card
,
4572 struct qdio_buffer
**in_sbal_ptrs
,
4573 void (**queue_start_poll
) (struct ccw_device
*, int, unsigned long)) {
4576 if (card
->options
.cq
== QETH_CQ_ENABLED
) {
4577 int offset
= QDIO_MAX_BUFFERS_PER_Q
*
4578 (card
->qdio
.no_in_queues
- 1);
4579 i
= QDIO_MAX_BUFFERS_PER_Q
* (card
->qdio
.no_in_queues
- 1);
4580 for (i
= 0; i
< QDIO_MAX_BUFFERS_PER_Q
; ++i
) {
4581 in_sbal_ptrs
[offset
+ i
] = (struct qdio_buffer
*)
4582 virt_to_phys(card
->qdio
.c_q
->bufs
[i
].buffer
);
4585 queue_start_poll
[card
->qdio
.no_in_queues
- 1] = NULL
;
4589 static int qeth_qdio_establish(struct qeth_card
*card
)
4591 struct qdio_initialize init_data
;
4592 char *qib_param_field
;
4593 struct qdio_buffer
**in_sbal_ptrs
;
4594 void (**queue_start_poll
) (struct ccw_device
*, int, unsigned long);
4595 struct qdio_buffer
**out_sbal_ptrs
;
4599 QETH_DBF_TEXT(SETUP
, 2, "qdioest");
4601 qib_param_field
= kzalloc(QDIO_MAX_BUFFERS_PER_Q
* sizeof(char),
4603 if (!qib_param_field
) {
4605 goto out_free_nothing
;
4608 qeth_create_qib_param_field(card
, qib_param_field
);
4609 qeth_create_qib_param_field_blkt(card
, qib_param_field
);
4611 in_sbal_ptrs
= kzalloc(card
->qdio
.no_in_queues
*
4612 QDIO_MAX_BUFFERS_PER_Q
* sizeof(void *),
4614 if (!in_sbal_ptrs
) {
4616 goto out_free_qib_param
;
4618 for (i
= 0; i
< QDIO_MAX_BUFFERS_PER_Q
; ++i
) {
4619 in_sbal_ptrs
[i
] = (struct qdio_buffer
*)
4620 virt_to_phys(card
->qdio
.in_q
->bufs
[i
].buffer
);
4623 queue_start_poll
= kzalloc(sizeof(void *) * card
->qdio
.no_in_queues
,
4625 if (!queue_start_poll
) {
4627 goto out_free_in_sbals
;
4629 for (i
= 0; i
< card
->qdio
.no_in_queues
; ++i
)
4630 queue_start_poll
[i
] = card
->discipline
.start_poll
;
4632 qeth_qdio_establish_cq(card
, in_sbal_ptrs
, queue_start_poll
);
4635 kzalloc(card
->qdio
.no_out_queues
* QDIO_MAX_BUFFERS_PER_Q
*
4636 sizeof(void *), GFP_KERNEL
);
4637 if (!out_sbal_ptrs
) {
4639 goto out_free_queue_start_poll
;
4641 for (i
= 0, k
= 0; i
< card
->qdio
.no_out_queues
; ++i
)
4642 for (j
= 0; j
< QDIO_MAX_BUFFERS_PER_Q
; ++j
, ++k
) {
4643 out_sbal_ptrs
[k
] = (struct qdio_buffer
*)virt_to_phys(
4644 card
->qdio
.out_qs
[i
]->bufs
[j
]->buffer
);
4647 memset(&init_data
, 0, sizeof(struct qdio_initialize
));
4648 init_data
.cdev
= CARD_DDEV(card
);
4649 init_data
.q_format
= qeth_get_qdio_q_format(card
);
4650 init_data
.qib_param_field_format
= 0;
4651 init_data
.qib_param_field
= qib_param_field
;
4652 init_data
.no_input_qs
= card
->qdio
.no_in_queues
;
4653 init_data
.no_output_qs
= card
->qdio
.no_out_queues
;
4654 init_data
.input_handler
= card
->discipline
.input_handler
;
4655 init_data
.output_handler
= card
->discipline
.output_handler
;
4656 init_data
.queue_start_poll_array
= queue_start_poll
;
4657 init_data
.int_parm
= (unsigned long) card
;
4658 init_data
.input_sbal_addr_array
= (void **) in_sbal_ptrs
;
4659 init_data
.output_sbal_addr_array
= (void **) out_sbal_ptrs
;
4660 init_data
.output_sbal_state_array
= card
->qdio
.out_bufstates
;
4661 init_data
.scan_threshold
=
4662 (card
->info
.type
== QETH_CARD_TYPE_IQD
) ? 8 : 32;
4664 if (atomic_cmpxchg(&card
->qdio
.state
, QETH_QDIO_ALLOCATED
,
4665 QETH_QDIO_ESTABLISHED
) == QETH_QDIO_ALLOCATED
) {
4666 rc
= qdio_allocate(&init_data
);
4668 atomic_set(&card
->qdio
.state
, QETH_QDIO_ALLOCATED
);
4671 rc
= qdio_establish(&init_data
);
4673 atomic_set(&card
->qdio
.state
, QETH_QDIO_ALLOCATED
);
4674 qdio_free(CARD_DDEV(card
));
4678 switch (card
->options
.cq
) {
4679 case QETH_CQ_ENABLED
:
4680 dev_info(&card
->gdev
->dev
, "Completion Queue support enabled");
4682 case QETH_CQ_DISABLED
:
4683 dev_info(&card
->gdev
->dev
, "Completion Queue support disabled");
4689 kfree(out_sbal_ptrs
);
4690 out_free_queue_start_poll
:
4691 kfree(queue_start_poll
);
4693 kfree(in_sbal_ptrs
);
4695 kfree(qib_param_field
);
4700 static void qeth_core_free_card(struct qeth_card
*card
)
4703 QETH_DBF_TEXT(SETUP
, 2, "freecrd");
4704 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
4705 qeth_clean_channel(&card
->read
);
4706 qeth_clean_channel(&card
->write
);
4708 free_netdev(card
->dev
);
4709 kfree(card
->ip_tbd_list
);
4710 qeth_free_qdio_buffers(card
);
4711 unregister_service_level(&card
->qeth_service_level
);
4715 static struct ccw_device_id qeth_ids
[] = {
4716 {CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01),
4717 .driver_info
= QETH_CARD_TYPE_OSD
},
4718 {CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05),
4719 .driver_info
= QETH_CARD_TYPE_IQD
},
4720 {CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06),
4721 .driver_info
= QETH_CARD_TYPE_OSN
},
4722 {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03),
4723 .driver_info
= QETH_CARD_TYPE_OSM
},
4724 {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02),
4725 .driver_info
= QETH_CARD_TYPE_OSX
},
4728 MODULE_DEVICE_TABLE(ccw
, qeth_ids
);
4730 static struct ccw_driver qeth_ccw_driver
= {
4732 .owner
= THIS_MODULE
,
4736 .probe
= ccwgroup_probe_ccwdev
,
4737 .remove
= ccwgroup_remove_ccwdev
,
4740 static int qeth_core_driver_group(const char *buf
, struct device
*root_dev
,
4741 unsigned long driver_id
)
4743 return ccwgroup_create_from_string(root_dev
, driver_id
,
4744 &qeth_ccw_driver
, 3, buf
);
4747 int qeth_core_hardsetup_card(struct qeth_card
*card
)
4752 QETH_DBF_TEXT(SETUP
, 2, "hrdsetup");
4753 atomic_set(&card
->force_alloc_skb
, 0);
4754 qeth_get_channel_path_desc(card
);
4757 QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n",
4758 dev_name(&card
->gdev
->dev
));
4759 ccw_device_set_offline(CARD_DDEV(card
));
4760 ccw_device_set_offline(CARD_WDEV(card
));
4761 ccw_device_set_offline(CARD_RDEV(card
));
4762 rc
= ccw_device_set_online(CARD_RDEV(card
));
4765 rc
= ccw_device_set_online(CARD_WDEV(card
));
4768 rc
= ccw_device_set_online(CARD_DDEV(card
));
4771 rc
= qeth_qdio_clear_card(card
, card
->info
.type
!= QETH_CARD_TYPE_IQD
);
4773 if (rc
== -ERESTARTSYS
) {
4774 QETH_DBF_TEXT(SETUP
, 2, "break1");
4777 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
4783 qeth_determine_capabilities(card
);
4784 qeth_init_tokens(card
);
4785 qeth_init_func_level(card
);
4786 rc
= qeth_idx_activate_channel(&card
->read
, qeth_idx_read_cb
);
4787 if (rc
== -ERESTARTSYS
) {
4788 QETH_DBF_TEXT(SETUP
, 2, "break2");
4791 QETH_DBF_TEXT_(SETUP
, 2, "3err%d", rc
);
4797 rc
= qeth_idx_activate_channel(&card
->write
, qeth_idx_write_cb
);
4798 if (rc
== -ERESTARTSYS
) {
4799 QETH_DBF_TEXT(SETUP
, 2, "break3");
4802 QETH_DBF_TEXT_(SETUP
, 2, "4err%d", rc
);
4808 card
->read_or_write_problem
= 0;
4809 rc
= qeth_mpc_initialize(card
);
4811 QETH_DBF_TEXT_(SETUP
, 2, "5err%d", rc
);
4815 card
->options
.ipa4
.supported_funcs
= 0;
4816 card
->options
.adp
.supported_funcs
= 0;
4817 card
->info
.diagass_support
= 0;
4818 qeth_query_ipassists(card
, QETH_PROT_IPV4
);
4819 if (qeth_is_supported(card
, IPA_SETADAPTERPARMS
))
4820 qeth_query_setadapterparms(card
);
4821 if (qeth_adp_supported(card
, IPA_SETADP_SET_DIAG_ASSIST
))
4822 qeth_query_setdiagass(card
);
4825 dev_warn(&card
->gdev
->dev
, "The qeth device driver failed to recover "
4826 "an error on the device\n");
4827 QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n",
4828 dev_name(&card
->gdev
->dev
), rc
);
4831 EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card
);
4833 static inline int qeth_create_skb_frag(struct qeth_qdio_buffer
*qethbuffer
,
4834 struct qdio_buffer_element
*element
,
4835 struct sk_buff
**pskb
, int offset
, int *pfrag
, int data_len
)
4837 struct page
*page
= virt_to_page(element
->addr
);
4838 if (*pskb
== NULL
) {
4839 if (qethbuffer
->rx_skb
) {
4840 /* only if qeth_card.options.cq == QETH_CQ_ENABLED */
4841 *pskb
= qethbuffer
->rx_skb
;
4842 qethbuffer
->rx_skb
= NULL
;
4844 *pskb
= dev_alloc_skb(QETH_RX_PULL_LEN
+ ETH_HLEN
);
4849 skb_reserve(*pskb
, ETH_HLEN
);
4850 if (data_len
<= QETH_RX_PULL_LEN
) {
4851 memcpy(skb_put(*pskb
, data_len
), element
->addr
+ offset
,
4855 memcpy(skb_put(*pskb
, QETH_RX_PULL_LEN
),
4856 element
->addr
+ offset
, QETH_RX_PULL_LEN
);
4857 skb_fill_page_desc(*pskb
, *pfrag
, page
,
4858 offset
+ QETH_RX_PULL_LEN
,
4859 data_len
- QETH_RX_PULL_LEN
);
4860 (*pskb
)->data_len
+= data_len
- QETH_RX_PULL_LEN
;
4861 (*pskb
)->len
+= data_len
- QETH_RX_PULL_LEN
;
4862 (*pskb
)->truesize
+= data_len
- QETH_RX_PULL_LEN
;
4867 skb_fill_page_desc(*pskb
, *pfrag
, page
, offset
, data_len
);
4868 (*pskb
)->data_len
+= data_len
;
4869 (*pskb
)->len
+= data_len
;
4870 (*pskb
)->truesize
+= data_len
;
4878 struct sk_buff
*qeth_core_get_next_skb(struct qeth_card
*card
,
4879 struct qeth_qdio_buffer
*qethbuffer
,
4880 struct qdio_buffer_element
**__element
, int *__offset
,
4881 struct qeth_hdr
**hdr
)
4883 struct qdio_buffer_element
*element
= *__element
;
4884 struct qdio_buffer
*buffer
= qethbuffer
->buffer
;
4885 int offset
= *__offset
;
4886 struct sk_buff
*skb
= NULL
;
4894 /* qeth_hdr must not cross element boundaries */
4895 if (element
->length
< offset
+ sizeof(struct qeth_hdr
)) {
4896 if (qeth_is_last_sbale(element
))
4900 if (element
->length
< sizeof(struct qeth_hdr
))
4903 *hdr
= element
->addr
+ offset
;
4905 offset
+= sizeof(struct qeth_hdr
);
4906 switch ((*hdr
)->hdr
.l2
.id
) {
4907 case QETH_HEADER_TYPE_LAYER2
:
4908 skb_len
= (*hdr
)->hdr
.l2
.pkt_length
;
4910 case QETH_HEADER_TYPE_LAYER3
:
4911 skb_len
= (*hdr
)->hdr
.l3
.length
;
4912 if ((card
->info
.link_type
== QETH_LINK_TYPE_LANE_TR
) ||
4913 (card
->info
.link_type
== QETH_LINK_TYPE_HSTR
))
4916 headroom
= ETH_HLEN
;
4918 case QETH_HEADER_TYPE_OSN
:
4919 skb_len
= (*hdr
)->hdr
.osn
.pdu_length
;
4920 headroom
= sizeof(struct qeth_hdr
);
4929 if (((skb_len
>= card
->options
.rx_sg_cb
) &&
4930 (!(card
->info
.type
== QETH_CARD_TYPE_OSN
)) &&
4931 (!atomic_read(&card
->force_alloc_skb
))) ||
4932 (card
->options
.cq
== QETH_CQ_ENABLED
)) {
4935 skb
= dev_alloc_skb(skb_len
+ headroom
);
4939 skb_reserve(skb
, headroom
);
4942 data_ptr
= element
->addr
+ offset
;
4944 data_len
= min(skb_len
, (int)(element
->length
- offset
));
4947 if (qeth_create_skb_frag(qethbuffer
, element
,
4948 &skb
, offset
, &frag
, data_len
))
4951 memcpy(skb_put(skb
, data_len
), data_ptr
,
4955 skb_len
-= data_len
;
4957 if (qeth_is_last_sbale(element
)) {
4958 QETH_CARD_TEXT(card
, 4, "unexeob");
4959 QETH_CARD_HEX(card
, 2, buffer
, sizeof(void *));
4960 dev_kfree_skb_any(skb
);
4961 card
->stats
.rx_errors
++;
4966 data_ptr
= element
->addr
;
4971 *__element
= element
;
4973 if (use_rx_sg
&& card
->options
.performance_stats
) {
4974 card
->perf_stats
.sg_skbs_rx
++;
4975 card
->perf_stats
.sg_frags_rx
+= skb_shinfo(skb
)->nr_frags
;
4979 if (net_ratelimit()) {
4980 QETH_CARD_TEXT(card
, 2, "noskbmem");
4982 card
->stats
.rx_dropped
++;
4985 EXPORT_SYMBOL_GPL(qeth_core_get_next_skb
);
4987 static void qeth_unregister_dbf_views(void)
4990 for (x
= 0; x
< QETH_DBF_INFOS
; x
++) {
4991 debug_unregister(qeth_dbf
[x
].id
);
4992 qeth_dbf
[x
].id
= NULL
;
4996 void qeth_dbf_longtext(debug_info_t
*id
, int level
, char *fmt
, ...)
4998 char dbf_txt_buf
[32];
5001 if (level
> id
->level
)
5003 va_start(args
, fmt
);
5004 vsnprintf(dbf_txt_buf
, sizeof(dbf_txt_buf
), fmt
, args
);
5006 debug_text_event(id
, level
, dbf_txt_buf
);
5008 EXPORT_SYMBOL_GPL(qeth_dbf_longtext
);
5010 static int qeth_register_dbf_views(void)
5015 for (x
= 0; x
< QETH_DBF_INFOS
; x
++) {
5016 /* register the areas */
5017 qeth_dbf
[x
].id
= debug_register(qeth_dbf
[x
].name
,
5021 if (qeth_dbf
[x
].id
== NULL
) {
5022 qeth_unregister_dbf_views();
5026 /* register a view */
5027 ret
= debug_register_view(qeth_dbf
[x
].id
, qeth_dbf
[x
].view
);
5029 qeth_unregister_dbf_views();
5033 /* set a passing level */
5034 debug_set_level(qeth_dbf
[x
].id
, qeth_dbf
[x
].level
);
5040 int qeth_core_load_discipline(struct qeth_card
*card
,
5041 enum qeth_discipline_id discipline
)
5044 mutex_lock(&qeth_mod_mutex
);
5045 switch (discipline
) {
5046 case QETH_DISCIPLINE_LAYER3
:
5047 card
->discipline
.ccwgdriver
= try_then_request_module(
5048 symbol_get(qeth_l3_ccwgroup_driver
),
5051 case QETH_DISCIPLINE_LAYER2
:
5052 card
->discipline
.ccwgdriver
= try_then_request_module(
5053 symbol_get(qeth_l2_ccwgroup_driver
),
5057 if (!card
->discipline
.ccwgdriver
) {
5058 dev_err(&card
->gdev
->dev
, "There is no kernel module to "
5059 "support discipline %d\n", discipline
);
5062 mutex_unlock(&qeth_mod_mutex
);
5066 void qeth_core_free_discipline(struct qeth_card
*card
)
5068 if (card
->options
.layer2
)
5069 symbol_put(qeth_l2_ccwgroup_driver
);
5071 symbol_put(qeth_l3_ccwgroup_driver
);
5072 card
->discipline
.ccwgdriver
= NULL
;
5075 static int qeth_core_probe_device(struct ccwgroup_device
*gdev
)
5077 struct qeth_card
*card
;
5080 unsigned long flags
;
5083 QETH_DBF_TEXT(SETUP
, 2, "probedev");
5086 if (!get_device(dev
))
5089 QETH_DBF_TEXT_(SETUP
, 2, "%s", dev_name(&gdev
->dev
));
5091 card
= qeth_alloc_card();
5093 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", -ENOMEM
);
5098 snprintf(dbf_name
, sizeof(dbf_name
), "qeth_card_%s",
5099 dev_name(&gdev
->dev
));
5100 card
->debug
= debug_register(dbf_name
, 2, 1, 8);
5102 QETH_DBF_TEXT_(SETUP
, 2, "%s", "qcdbf");
5106 debug_register_view(card
->debug
, &debug_hex_ascii_view
);
5108 card
->read
.ccwdev
= gdev
->cdev
[0];
5109 card
->write
.ccwdev
= gdev
->cdev
[1];
5110 card
->data
.ccwdev
= gdev
->cdev
[2];
5111 dev_set_drvdata(&gdev
->dev
, card
);
5113 gdev
->cdev
[0]->handler
= qeth_irq
;
5114 gdev
->cdev
[1]->handler
= qeth_irq
;
5115 gdev
->cdev
[2]->handler
= qeth_irq
;
5117 rc
= qeth_determine_card_type(card
);
5119 QETH_DBF_TEXT_(SETUP
, 2, "3err%d", rc
);
5122 rc
= qeth_setup_card(card
);
5124 QETH_DBF_TEXT_(SETUP
, 2, "2err%d", rc
);
5128 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
5129 rc
= qeth_core_create_osn_attributes(dev
);
5131 rc
= qeth_core_create_device_attributes(dev
);
5134 switch (card
->info
.type
) {
5135 case QETH_CARD_TYPE_OSN
:
5136 case QETH_CARD_TYPE_OSM
:
5137 rc
= qeth_core_load_discipline(card
, QETH_DISCIPLINE_LAYER2
);
5140 rc
= card
->discipline
.ccwgdriver
->probe(card
->gdev
);
5143 case QETH_CARD_TYPE_OSD
:
5144 case QETH_CARD_TYPE_OSX
:
5149 write_lock_irqsave(&qeth_core_card_list
.rwlock
, flags
);
5150 list_add_tail(&card
->list
, &qeth_core_card_list
.list
);
5151 write_unlock_irqrestore(&qeth_core_card_list
.rwlock
, flags
);
5153 qeth_determine_capabilities(card
);
5157 qeth_core_free_discipline(card
);
5159 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
5160 qeth_core_remove_osn_attributes(dev
);
5162 qeth_core_remove_device_attributes(dev
);
5164 debug_unregister(card
->debug
);
5166 qeth_core_free_card(card
);
5172 static void qeth_core_remove_device(struct ccwgroup_device
*gdev
)
5174 unsigned long flags
;
5175 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5177 QETH_DBF_TEXT(SETUP
, 2, "removedv");
5179 if (card
->info
.type
== QETH_CARD_TYPE_OSN
) {
5180 qeth_core_remove_osn_attributes(&gdev
->dev
);
5182 qeth_core_remove_device_attributes(&gdev
->dev
);
5185 if (card
->discipline
.ccwgdriver
) {
5186 card
->discipline
.ccwgdriver
->remove(gdev
);
5187 qeth_core_free_discipline(card
);
5190 debug_unregister(card
->debug
);
5191 write_lock_irqsave(&qeth_core_card_list
.rwlock
, flags
);
5192 list_del(&card
->list
);
5193 write_unlock_irqrestore(&qeth_core_card_list
.rwlock
, flags
);
5194 qeth_core_free_card(card
);
5195 dev_set_drvdata(&gdev
->dev
, NULL
);
5196 put_device(&gdev
->dev
);
5200 static int qeth_core_set_online(struct ccwgroup_device
*gdev
)
5202 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5206 if (!card
->discipline
.ccwgdriver
) {
5207 if (card
->info
.type
== QETH_CARD_TYPE_IQD
)
5208 def_discipline
= QETH_DISCIPLINE_LAYER3
;
5210 def_discipline
= QETH_DISCIPLINE_LAYER2
;
5211 rc
= qeth_core_load_discipline(card
, def_discipline
);
5214 rc
= card
->discipline
.ccwgdriver
->probe(card
->gdev
);
5218 rc
= card
->discipline
.ccwgdriver
->set_online(gdev
);
5223 static int qeth_core_set_offline(struct ccwgroup_device
*gdev
)
5225 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5226 return card
->discipline
.ccwgdriver
->set_offline(gdev
);
5229 static void qeth_core_shutdown(struct ccwgroup_device
*gdev
)
5231 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5232 if (card
->discipline
.ccwgdriver
&&
5233 card
->discipline
.ccwgdriver
->shutdown
)
5234 card
->discipline
.ccwgdriver
->shutdown(gdev
);
5237 static int qeth_core_prepare(struct ccwgroup_device
*gdev
)
5239 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5240 if (card
->discipline
.ccwgdriver
&&
5241 card
->discipline
.ccwgdriver
->prepare
)
5242 return card
->discipline
.ccwgdriver
->prepare(gdev
);
5246 static void qeth_core_complete(struct ccwgroup_device
*gdev
)
5248 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5249 if (card
->discipline
.ccwgdriver
&&
5250 card
->discipline
.ccwgdriver
->complete
)
5251 card
->discipline
.ccwgdriver
->complete(gdev
);
5254 static int qeth_core_freeze(struct ccwgroup_device
*gdev
)
5256 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5257 if (card
->discipline
.ccwgdriver
&&
5258 card
->discipline
.ccwgdriver
->freeze
)
5259 return card
->discipline
.ccwgdriver
->freeze(gdev
);
5263 static int qeth_core_thaw(struct ccwgroup_device
*gdev
)
5265 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5266 if (card
->discipline
.ccwgdriver
&&
5267 card
->discipline
.ccwgdriver
->thaw
)
5268 return card
->discipline
.ccwgdriver
->thaw(gdev
);
5272 static int qeth_core_restore(struct ccwgroup_device
*gdev
)
5274 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5275 if (card
->discipline
.ccwgdriver
&&
5276 card
->discipline
.ccwgdriver
->restore
)
5277 return card
->discipline
.ccwgdriver
->restore(gdev
);
5281 static struct ccwgroup_driver qeth_core_ccwgroup_driver
= {
5283 .owner
= THIS_MODULE
,
5286 .driver_id
= 0xD8C5E3C8,
5287 .probe
= qeth_core_probe_device
,
5288 .remove
= qeth_core_remove_device
,
5289 .set_online
= qeth_core_set_online
,
5290 .set_offline
= qeth_core_set_offline
,
5291 .shutdown
= qeth_core_shutdown
,
5292 .prepare
= qeth_core_prepare
,
5293 .complete
= qeth_core_complete
,
5294 .freeze
= qeth_core_freeze
,
5295 .thaw
= qeth_core_thaw
,
5296 .restore
= qeth_core_restore
,
5300 qeth_core_driver_group_store(struct device_driver
*ddrv
, const char *buf
,
5304 err
= qeth_core_driver_group(buf
, qeth_core_root_dev
,
5305 qeth_core_ccwgroup_driver
.driver_id
);
5312 static DRIVER_ATTR(group
, 0200, NULL
, qeth_core_driver_group_store
);
5315 const char str
[ETH_GSTRING_LEN
];
5316 } qeth_ethtool_stats_keys
[] = {
5321 {"tx skbs no packing"},
5322 {"tx buffers no packing"},
5323 {"tx skbs packing"},
5324 {"tx buffers packing"},
5327 /* 10 */{"rx sg skbs"},
5329 {"rx sg page allocs"},
5330 {"tx large kbytes"},
5332 {"tx pk state ch n->p"},
5333 {"tx pk state ch p->n"},
5334 {"tx pk watermark low"},
5335 {"tx pk watermark high"},
5336 {"queue 0 buffer usage"},
5337 /* 20 */{"queue 1 buffer usage"},
5338 {"queue 2 buffer usage"},
5339 {"queue 3 buffer usage"},
5342 {"rx do_QDIO time"},
5343 {"rx do_QDIO count"},
5344 {"tx handler time"},
5345 {"tx handler count"},
5347 /* 30 */{"tx count"},
5348 {"tx do_QDIO time"},
5349 {"tx do_QDIO count"},
5352 {"cq handler count"},
5356 int qeth_core_get_sset_count(struct net_device
*dev
, int stringset
)
5358 switch (stringset
) {
5360 return (sizeof(qeth_ethtool_stats_keys
) / ETH_GSTRING_LEN
);
5365 EXPORT_SYMBOL_GPL(qeth_core_get_sset_count
);
5367 void qeth_core_get_ethtool_stats(struct net_device
*dev
,
5368 struct ethtool_stats
*stats
, u64
*data
)
5370 struct qeth_card
*card
= dev
->ml_priv
;
5371 data
[0] = card
->stats
.rx_packets
-
5372 card
->perf_stats
.initial_rx_packets
;
5373 data
[1] = card
->perf_stats
.bufs_rec
;
5374 data
[2] = card
->stats
.tx_packets
-
5375 card
->perf_stats
.initial_tx_packets
;
5376 data
[3] = card
->perf_stats
.bufs_sent
;
5377 data
[4] = card
->stats
.tx_packets
- card
->perf_stats
.initial_tx_packets
5378 - card
->perf_stats
.skbs_sent_pack
;
5379 data
[5] = card
->perf_stats
.bufs_sent
- card
->perf_stats
.bufs_sent_pack
;
5380 data
[6] = card
->perf_stats
.skbs_sent_pack
;
5381 data
[7] = card
->perf_stats
.bufs_sent_pack
;
5382 data
[8] = card
->perf_stats
.sg_skbs_sent
;
5383 data
[9] = card
->perf_stats
.sg_frags_sent
;
5384 data
[10] = card
->perf_stats
.sg_skbs_rx
;
5385 data
[11] = card
->perf_stats
.sg_frags_rx
;
5386 data
[12] = card
->perf_stats
.sg_alloc_page_rx
;
5387 data
[13] = (card
->perf_stats
.large_send_bytes
>> 10);
5388 data
[14] = card
->perf_stats
.large_send_cnt
;
5389 data
[15] = card
->perf_stats
.sc_dp_p
;
5390 data
[16] = card
->perf_stats
.sc_p_dp
;
5391 data
[17] = QETH_LOW_WATERMARK_PACK
;
5392 data
[18] = QETH_HIGH_WATERMARK_PACK
;
5393 data
[19] = atomic_read(&card
->qdio
.out_qs
[0]->used_buffers
);
5394 data
[20] = (card
->qdio
.no_out_queues
> 1) ?
5395 atomic_read(&card
->qdio
.out_qs
[1]->used_buffers
) : 0;
5396 data
[21] = (card
->qdio
.no_out_queues
> 2) ?
5397 atomic_read(&card
->qdio
.out_qs
[2]->used_buffers
) : 0;
5398 data
[22] = (card
->qdio
.no_out_queues
> 3) ?
5399 atomic_read(&card
->qdio
.out_qs
[3]->used_buffers
) : 0;
5400 data
[23] = card
->perf_stats
.inbound_time
;
5401 data
[24] = card
->perf_stats
.inbound_cnt
;
5402 data
[25] = card
->perf_stats
.inbound_do_qdio_time
;
5403 data
[26] = card
->perf_stats
.inbound_do_qdio_cnt
;
5404 data
[27] = card
->perf_stats
.outbound_handler_time
;
5405 data
[28] = card
->perf_stats
.outbound_handler_cnt
;
5406 data
[29] = card
->perf_stats
.outbound_time
;
5407 data
[30] = card
->perf_stats
.outbound_cnt
;
5408 data
[31] = card
->perf_stats
.outbound_do_qdio_time
;
5409 data
[32] = card
->perf_stats
.outbound_do_qdio_cnt
;
5410 data
[33] = card
->perf_stats
.tx_csum
;
5411 data
[34] = card
->perf_stats
.tx_lin
;
5412 data
[35] = card
->perf_stats
.cq_cnt
;
5413 data
[36] = card
->perf_stats
.cq_time
;
5415 EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats
);
5417 void qeth_core_get_strings(struct net_device
*dev
, u32 stringset
, u8
*data
)
5419 switch (stringset
) {
5421 memcpy(data
, &qeth_ethtool_stats_keys
,
5422 sizeof(qeth_ethtool_stats_keys
));
5429 EXPORT_SYMBOL_GPL(qeth_core_get_strings
);
5431 void qeth_core_get_drvinfo(struct net_device
*dev
,
5432 struct ethtool_drvinfo
*info
)
5434 struct qeth_card
*card
= dev
->ml_priv
;
5435 if (card
->options
.layer2
)
5436 strcpy(info
->driver
, "qeth_l2");
5438 strcpy(info
->driver
, "qeth_l3");
5440 strcpy(info
->version
, "1.0");
5441 strcpy(info
->fw_version
, card
->info
.mcl_level
);
5442 sprintf(info
->bus_info
, "%s/%s/%s",
5445 CARD_DDEV_ID(card
));
5447 EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo
);
5449 int qeth_core_ethtool_get_settings(struct net_device
*netdev
,
5450 struct ethtool_cmd
*ecmd
)
5452 struct qeth_card
*card
= netdev
->ml_priv
;
5453 enum qeth_link_types link_type
;
5455 if ((card
->info
.type
== QETH_CARD_TYPE_IQD
) || (card
->info
.guestlan
))
5456 link_type
= QETH_LINK_TYPE_10GBIT_ETH
;
5458 link_type
= card
->info
.link_type
;
5460 ecmd
->transceiver
= XCVR_INTERNAL
;
5461 ecmd
->supported
= SUPPORTED_Autoneg
;
5462 ecmd
->advertising
= ADVERTISED_Autoneg
;
5463 ecmd
->duplex
= DUPLEX_FULL
;
5464 ecmd
->autoneg
= AUTONEG_ENABLE
;
5466 switch (link_type
) {
5467 case QETH_LINK_TYPE_FAST_ETH
:
5468 case QETH_LINK_TYPE_LANE_ETH100
:
5469 ecmd
->supported
|= SUPPORTED_10baseT_Half
|
5470 SUPPORTED_10baseT_Full
|
5471 SUPPORTED_100baseT_Half
|
5472 SUPPORTED_100baseT_Full
|
5474 ecmd
->advertising
|= ADVERTISED_10baseT_Half
|
5475 ADVERTISED_10baseT_Full
|
5476 ADVERTISED_100baseT_Half
|
5477 ADVERTISED_100baseT_Full
|
5479 ecmd
->speed
= SPEED_100
;
5480 ecmd
->port
= PORT_TP
;
5483 case QETH_LINK_TYPE_GBIT_ETH
:
5484 case QETH_LINK_TYPE_LANE_ETH1000
:
5485 ecmd
->supported
|= SUPPORTED_10baseT_Half
|
5486 SUPPORTED_10baseT_Full
|
5487 SUPPORTED_100baseT_Half
|
5488 SUPPORTED_100baseT_Full
|
5489 SUPPORTED_1000baseT_Half
|
5490 SUPPORTED_1000baseT_Full
|
5492 ecmd
->advertising
|= ADVERTISED_10baseT_Half
|
5493 ADVERTISED_10baseT_Full
|
5494 ADVERTISED_100baseT_Half
|
5495 ADVERTISED_100baseT_Full
|
5496 ADVERTISED_1000baseT_Half
|
5497 ADVERTISED_1000baseT_Full
|
5499 ecmd
->speed
= SPEED_1000
;
5500 ecmd
->port
= PORT_FIBRE
;
5503 case QETH_LINK_TYPE_10GBIT_ETH
:
5504 ecmd
->supported
|= SUPPORTED_10baseT_Half
|
5505 SUPPORTED_10baseT_Full
|
5506 SUPPORTED_100baseT_Half
|
5507 SUPPORTED_100baseT_Full
|
5508 SUPPORTED_1000baseT_Half
|
5509 SUPPORTED_1000baseT_Full
|
5510 SUPPORTED_10000baseT_Full
|
5512 ecmd
->advertising
|= ADVERTISED_10baseT_Half
|
5513 ADVERTISED_10baseT_Full
|
5514 ADVERTISED_100baseT_Half
|
5515 ADVERTISED_100baseT_Full
|
5516 ADVERTISED_1000baseT_Half
|
5517 ADVERTISED_1000baseT_Full
|
5518 ADVERTISED_10000baseT_Full
|
5520 ecmd
->speed
= SPEED_10000
;
5521 ecmd
->port
= PORT_FIBRE
;
5525 ecmd
->supported
|= SUPPORTED_10baseT_Half
|
5526 SUPPORTED_10baseT_Full
|
5528 ecmd
->advertising
|= ADVERTISED_10baseT_Half
|
5529 ADVERTISED_10baseT_Full
|
5531 ecmd
->speed
= SPEED_10
;
5532 ecmd
->port
= PORT_TP
;
5537 EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_settings
);
5539 static int __init
qeth_core_init(void)
5543 pr_info("loading core functions\n");
5544 INIT_LIST_HEAD(&qeth_core_card_list
.list
);
5545 rwlock_init(&qeth_core_card_list
.rwlock
);
5546 mutex_init(&qeth_mod_mutex
);
5548 rc
= qeth_register_dbf_views();
5551 rc
= ccw_driver_register(&qeth_ccw_driver
);
5554 rc
= ccwgroup_driver_register(&qeth_core_ccwgroup_driver
);
5557 rc
= driver_create_file(&qeth_core_ccwgroup_driver
.driver
,
5558 &driver_attr_group
);
5561 qeth_core_root_dev
= root_device_register("qeth");
5562 rc
= IS_ERR(qeth_core_root_dev
) ? PTR_ERR(qeth_core_root_dev
) : 0;
5566 qeth_core_header_cache
= kmem_cache_create("qeth_hdr",
5567 sizeof(struct qeth_hdr
) + ETH_HLEN
, 64, 0, NULL
);
5568 if (!qeth_core_header_cache
) {
5573 qeth_qdio_outbuf_cache
= kmem_cache_create("qeth_buf",
5574 sizeof(struct qeth_qdio_out_buffer
), 0, 0, NULL
);
5575 if (!qeth_qdio_outbuf_cache
) {
5582 kmem_cache_destroy(qeth_core_header_cache
);
5584 root_device_unregister(qeth_core_root_dev
);
5586 driver_remove_file(&qeth_core_ccwgroup_driver
.driver
,
5587 &driver_attr_group
);
5589 ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver
);
5591 ccw_driver_unregister(&qeth_ccw_driver
);
5593 QETH_DBF_MESSAGE(2, "Initialization failed with code %d\n", rc
);
5594 qeth_unregister_dbf_views();
5596 pr_err("Initializing the qeth device driver failed\n");
5600 static void __exit
qeth_core_exit(void)
5602 root_device_unregister(qeth_core_root_dev
);
5603 driver_remove_file(&qeth_core_ccwgroup_driver
.driver
,
5604 &driver_attr_group
);
5605 ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver
);
5606 ccw_driver_unregister(&qeth_ccw_driver
);
5607 kmem_cache_destroy(qeth_qdio_outbuf_cache
);
5608 kmem_cache_destroy(qeth_core_header_cache
);
5609 qeth_unregister_dbf_views();
5610 pr_info("core functions removed\n");
5613 module_init(qeth_core_init
);
5614 module_exit(qeth_core_exit
);
5615 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
5616 MODULE_DESCRIPTION("qeth core functions");
5617 MODULE_LICENSE("GPL");