2 * Copyright IBM Corp. 2007, 2009
3 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
4 * Frank Pavlic <fpavlic@de.ibm.com>,
5 * Thomas Spatzier <tspat@de.ibm.com>,
6 * Frank Blaschka <frank.blaschka@de.ibm.com>
9 #define KMSG_COMPONENT "qeth"
10 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
12 #include <linux/module.h>
13 #include <linux/moduleparam.h>
14 #include <linux/string.h>
15 #include <linux/errno.h>
16 #include <linux/kernel.h>
18 #include <linux/tcp.h>
19 #include <linux/mii.h>
20 #include <linux/kthread.h>
21 #include <linux/slab.h>
22 #include <net/iucv/af_iucv.h>
24 #include <asm/ebcdic.h>
26 #include <asm/sysinfo.h>
27 #include <asm/compat.h>
29 #include "qeth_core.h"
31 struct qeth_dbf_info qeth_dbf
[QETH_DBF_INFOS
] = {
32 /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */
34 [QETH_DBF_SETUP
] = {"qeth_setup",
35 8, 1, 8, 5, &debug_hex_ascii_view
, NULL
},
36 [QETH_DBF_MSG
] = {"qeth_msg",
37 8, 1, 128, 3, &debug_sprintf_view
, NULL
},
38 [QETH_DBF_CTRL
] = {"qeth_control",
39 8, 1, QETH_DBF_CTRL_LEN
, 5, &debug_hex_ascii_view
, NULL
},
41 EXPORT_SYMBOL_GPL(qeth_dbf
);
43 struct qeth_card_list_struct qeth_core_card_list
;
44 EXPORT_SYMBOL_GPL(qeth_core_card_list
);
45 struct kmem_cache
*qeth_core_header_cache
;
46 EXPORT_SYMBOL_GPL(qeth_core_header_cache
);
47 static struct kmem_cache
*qeth_qdio_outbuf_cache
;
49 static struct device
*qeth_core_root_dev
;
50 static unsigned int known_devices
[][6] = QETH_MODELLIST_ARRAY
;
51 static struct lock_class_key qdio_out_skb_queue_key
;
52 static struct mutex qeth_mod_mutex
;
54 static void qeth_send_control_data_cb(struct qeth_channel
*,
55 struct qeth_cmd_buffer
*);
56 static int qeth_issue_next_read(struct qeth_card
*);
57 static struct qeth_cmd_buffer
*qeth_get_buffer(struct qeth_channel
*);
58 static void qeth_setup_ccw(struct qeth_channel
*, unsigned char *, __u32
);
59 static void qeth_free_buffer_pool(struct qeth_card
*);
60 static int qeth_qdio_establish(struct qeth_card
*);
61 static void qeth_free_qdio_buffers(struct qeth_card
*);
62 static void qeth_notify_skbs(struct qeth_qdio_out_q
*queue
,
63 struct qeth_qdio_out_buffer
*buf
,
64 enum iucv_tx_notify notification
);
65 static void qeth_release_skbs(struct qeth_qdio_out_buffer
*buf
);
66 static void qeth_clear_output_buffer(struct qeth_qdio_out_q
*queue
,
67 struct qeth_qdio_out_buffer
*buf
,
68 enum qeth_qdio_buffer_states newbufstate
);
69 static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q
*, int);
71 static inline const char *qeth_get_cardname(struct qeth_card
*card
)
73 if (card
->info
.guestlan
) {
74 switch (card
->info
.type
) {
75 case QETH_CARD_TYPE_OSD
:
76 return " Virtual NIC QDIO";
77 case QETH_CARD_TYPE_IQD
:
78 return " Virtual NIC Hiper";
79 case QETH_CARD_TYPE_OSM
:
80 return " Virtual NIC QDIO - OSM";
81 case QETH_CARD_TYPE_OSX
:
82 return " Virtual NIC QDIO - OSX";
87 switch (card
->info
.type
) {
88 case QETH_CARD_TYPE_OSD
:
89 return " OSD Express";
90 case QETH_CARD_TYPE_IQD
:
91 return " HiperSockets";
92 case QETH_CARD_TYPE_OSN
:
94 case QETH_CARD_TYPE_OSM
:
96 case QETH_CARD_TYPE_OSX
:
105 /* max length to be returned: 14 */
106 const char *qeth_get_cardname_short(struct qeth_card
*card
)
108 if (card
->info
.guestlan
) {
109 switch (card
->info
.type
) {
110 case QETH_CARD_TYPE_OSD
:
111 return "Virt.NIC QDIO";
112 case QETH_CARD_TYPE_IQD
:
113 return "Virt.NIC Hiper";
114 case QETH_CARD_TYPE_OSM
:
115 return "Virt.NIC OSM";
116 case QETH_CARD_TYPE_OSX
:
117 return "Virt.NIC OSX";
122 switch (card
->info
.type
) {
123 case QETH_CARD_TYPE_OSD
:
124 switch (card
->info
.link_type
) {
125 case QETH_LINK_TYPE_FAST_ETH
:
127 case QETH_LINK_TYPE_HSTR
:
129 case QETH_LINK_TYPE_GBIT_ETH
:
131 case QETH_LINK_TYPE_10GBIT_ETH
:
133 case QETH_LINK_TYPE_LANE_ETH100
:
134 return "OSD_FE_LANE";
135 case QETH_LINK_TYPE_LANE_TR
:
136 return "OSD_TR_LANE";
137 case QETH_LINK_TYPE_LANE_ETH1000
:
138 return "OSD_GbE_LANE";
139 case QETH_LINK_TYPE_LANE
:
140 return "OSD_ATM_LANE";
142 return "OSD_Express";
144 case QETH_CARD_TYPE_IQD
:
145 return "HiperSockets";
146 case QETH_CARD_TYPE_OSN
:
148 case QETH_CARD_TYPE_OSM
:
150 case QETH_CARD_TYPE_OSX
:
159 void qeth_set_allowed_threads(struct qeth_card
*card
, unsigned long threads
,
160 int clear_start_mask
)
164 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
165 card
->thread_allowed_mask
= threads
;
166 if (clear_start_mask
)
167 card
->thread_start_mask
&= threads
;
168 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
169 wake_up(&card
->wait_q
);
171 EXPORT_SYMBOL_GPL(qeth_set_allowed_threads
);
173 int qeth_threads_running(struct qeth_card
*card
, unsigned long threads
)
178 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
179 rc
= (card
->thread_running_mask
& threads
);
180 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
183 EXPORT_SYMBOL_GPL(qeth_threads_running
);
185 int qeth_wait_for_threads(struct qeth_card
*card
, unsigned long threads
)
187 return wait_event_interruptible(card
->wait_q
,
188 qeth_threads_running(card
, threads
) == 0);
190 EXPORT_SYMBOL_GPL(qeth_wait_for_threads
);
192 void qeth_clear_working_pool_list(struct qeth_card
*card
)
194 struct qeth_buffer_pool_entry
*pool_entry
, *tmp
;
196 QETH_CARD_TEXT(card
, 5, "clwrklst");
197 list_for_each_entry_safe(pool_entry
, tmp
,
198 &card
->qdio
.in_buf_pool
.entry_list
, list
){
199 list_del(&pool_entry
->list
);
202 EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list
);
204 static int qeth_alloc_buffer_pool(struct qeth_card
*card
)
206 struct qeth_buffer_pool_entry
*pool_entry
;
210 QETH_CARD_TEXT(card
, 5, "alocpool");
211 for (i
= 0; i
< card
->qdio
.init_pool
.buf_count
; ++i
) {
212 pool_entry
= kzalloc(sizeof(*pool_entry
), GFP_KERNEL
);
214 qeth_free_buffer_pool(card
);
217 for (j
= 0; j
< QETH_MAX_BUFFER_ELEMENTS(card
); ++j
) {
218 ptr
= (void *) __get_free_page(GFP_KERNEL
);
221 free_page((unsigned long)
222 pool_entry
->elements
[--j
]);
224 qeth_free_buffer_pool(card
);
227 pool_entry
->elements
[j
] = ptr
;
229 list_add(&pool_entry
->init_list
,
230 &card
->qdio
.init_pool
.entry_list
);
235 int qeth_realloc_buffer_pool(struct qeth_card
*card
, int bufcnt
)
237 QETH_CARD_TEXT(card
, 2, "realcbp");
239 if ((card
->state
!= CARD_STATE_DOWN
) &&
240 (card
->state
!= CARD_STATE_RECOVER
))
243 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
244 qeth_clear_working_pool_list(card
);
245 qeth_free_buffer_pool(card
);
246 card
->qdio
.in_buf_pool
.buf_count
= bufcnt
;
247 card
->qdio
.init_pool
.buf_count
= bufcnt
;
248 return qeth_alloc_buffer_pool(card
);
250 EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool
);
252 static inline int qeth_cq_init(struct qeth_card
*card
)
256 if (card
->options
.cq
== QETH_CQ_ENABLED
) {
257 QETH_DBF_TEXT(SETUP
, 2, "cqinit");
258 memset(card
->qdio
.c_q
->qdio_bufs
, 0,
259 QDIO_MAX_BUFFERS_PER_Q
* sizeof(struct qdio_buffer
));
260 card
->qdio
.c_q
->next_buf_to_init
= 127;
261 rc
= do_QDIO(CARD_DDEV(card
), QDIO_FLAG_SYNC_INPUT
,
262 card
->qdio
.no_in_queues
- 1, 0,
265 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
274 static inline int qeth_alloc_cq(struct qeth_card
*card
)
278 if (card
->options
.cq
== QETH_CQ_ENABLED
) {
280 struct qdio_outbuf_state
*outbuf_states
;
282 QETH_DBF_TEXT(SETUP
, 2, "cqon");
283 card
->qdio
.c_q
= kzalloc(sizeof(struct qeth_qdio_q
),
285 if (!card
->qdio
.c_q
) {
289 QETH_DBF_HEX(SETUP
, 2, &card
->qdio
.c_q
, sizeof(void *));
291 for (i
= 0; i
< QDIO_MAX_BUFFERS_PER_Q
; ++i
) {
292 card
->qdio
.c_q
->bufs
[i
].buffer
=
293 &card
->qdio
.c_q
->qdio_bufs
[i
];
296 card
->qdio
.no_in_queues
= 2;
298 card
->qdio
.out_bufstates
= (struct qdio_outbuf_state
*)
299 kzalloc(card
->qdio
.no_out_queues
*
300 QDIO_MAX_BUFFERS_PER_Q
*
301 sizeof(struct qdio_outbuf_state
), GFP_KERNEL
);
302 outbuf_states
= card
->qdio
.out_bufstates
;
303 if (outbuf_states
== NULL
) {
307 for (i
= 0; i
< card
->qdio
.no_out_queues
; ++i
) {
308 card
->qdio
.out_qs
[i
]->bufstates
= outbuf_states
;
309 outbuf_states
+= QDIO_MAX_BUFFERS_PER_Q
;
312 QETH_DBF_TEXT(SETUP
, 2, "nocq");
313 card
->qdio
.c_q
= NULL
;
314 card
->qdio
.no_in_queues
= 1;
316 QETH_DBF_TEXT_(SETUP
, 2, "iqc%d", card
->qdio
.no_in_queues
);
321 kfree(card
->qdio
.c_q
);
322 card
->qdio
.c_q
= NULL
;
324 dev_err(&card
->gdev
->dev
, "Failed to create completion queue\n");
328 static inline void qeth_free_cq(struct qeth_card
*card
)
330 if (card
->qdio
.c_q
) {
331 --card
->qdio
.no_in_queues
;
332 kfree(card
->qdio
.c_q
);
333 card
->qdio
.c_q
= NULL
;
335 kfree(card
->qdio
.out_bufstates
);
336 card
->qdio
.out_bufstates
= NULL
;
339 static inline enum iucv_tx_notify
qeth_compute_cq_notification(int sbalf15
,
341 enum iucv_tx_notify n
;
345 n
= delayed
? TX_NOTIFY_DELAYED_OK
: TX_NOTIFY_OK
;
351 n
= delayed
? TX_NOTIFY_DELAYED_UNREACHABLE
:
352 TX_NOTIFY_UNREACHABLE
;
355 n
= delayed
? TX_NOTIFY_DELAYED_GENERALERROR
:
356 TX_NOTIFY_GENERALERROR
;
363 static inline void qeth_cleanup_handled_pending(struct qeth_qdio_out_q
*q
,
364 int bidx
, int forced_cleanup
)
366 if (q
->card
->options
.cq
!= QETH_CQ_ENABLED
)
369 if (q
->bufs
[bidx
]->next_pending
!= NULL
) {
370 struct qeth_qdio_out_buffer
*head
= q
->bufs
[bidx
];
371 struct qeth_qdio_out_buffer
*c
= q
->bufs
[bidx
]->next_pending
;
374 if (forced_cleanup
||
375 atomic_read(&c
->state
) ==
376 QETH_QDIO_BUF_HANDLED_DELAYED
) {
377 struct qeth_qdio_out_buffer
*f
= c
;
378 QETH_CARD_TEXT(f
->q
->card
, 5, "fp");
379 QETH_CARD_TEXT_(f
->q
->card
, 5, "%lx", (long) f
);
380 /* release here to avoid interleaving between
381 outbound tasklet and inbound tasklet
382 regarding notifications and lifecycle */
383 qeth_release_skbs(c
);
386 WARN_ON_ONCE(head
->next_pending
!= f
);
387 head
->next_pending
= c
;
388 kmem_cache_free(qeth_qdio_outbuf_cache
, f
);
396 if (forced_cleanup
&& (atomic_read(&(q
->bufs
[bidx
]->state
)) ==
397 QETH_QDIO_BUF_HANDLED_DELAYED
)) {
398 /* for recovery situations */
399 q
->bufs
[bidx
]->aob
= q
->bufstates
[bidx
].aob
;
400 qeth_init_qdio_out_buf(q
, bidx
);
401 QETH_CARD_TEXT(q
->card
, 2, "clprecov");
406 static inline void qeth_qdio_handle_aob(struct qeth_card
*card
,
407 unsigned long phys_aob_addr
) {
409 struct qeth_qdio_out_buffer
*buffer
;
410 enum iucv_tx_notify notification
;
412 aob
= (struct qaob
*) phys_to_virt(phys_aob_addr
);
413 QETH_CARD_TEXT(card
, 5, "haob");
414 QETH_CARD_TEXT_(card
, 5, "%lx", phys_aob_addr
);
415 buffer
= (struct qeth_qdio_out_buffer
*) aob
->user1
;
416 QETH_CARD_TEXT_(card
, 5, "%lx", aob
->user1
);
418 if (atomic_cmpxchg(&buffer
->state
, QETH_QDIO_BUF_PRIMED
,
419 QETH_QDIO_BUF_IN_CQ
) == QETH_QDIO_BUF_PRIMED
) {
420 notification
= TX_NOTIFY_OK
;
422 WARN_ON_ONCE(atomic_read(&buffer
->state
) !=
423 QETH_QDIO_BUF_PENDING
);
424 atomic_set(&buffer
->state
, QETH_QDIO_BUF_IN_CQ
);
425 notification
= TX_NOTIFY_DELAYED_OK
;
428 if (aob
->aorc
!= 0) {
429 QETH_CARD_TEXT_(card
, 2, "aorc%02X", aob
->aorc
);
430 notification
= qeth_compute_cq_notification(aob
->aorc
, 1);
432 qeth_notify_skbs(buffer
->q
, buffer
, notification
);
435 qeth_clear_output_buffer(buffer
->q
, buffer
,
436 QETH_QDIO_BUF_HANDLED_DELAYED
);
438 /* from here on: do not touch buffer anymore */
439 qdio_release_aob(aob
);
442 static inline int qeth_is_cq(struct qeth_card
*card
, unsigned int queue
)
444 return card
->options
.cq
== QETH_CQ_ENABLED
&&
445 card
->qdio
.c_q
!= NULL
&&
447 queue
== card
->qdio
.no_in_queues
- 1;
451 static int qeth_issue_next_read(struct qeth_card
*card
)
454 struct qeth_cmd_buffer
*iob
;
456 QETH_CARD_TEXT(card
, 5, "issnxrd");
457 if (card
->read
.state
!= CH_STATE_UP
)
459 iob
= qeth_get_buffer(&card
->read
);
461 dev_warn(&card
->gdev
->dev
, "The qeth device driver "
462 "failed to recover an error on the device\n");
463 QETH_DBF_MESSAGE(2, "%s issue_next_read failed: no iob "
464 "available\n", dev_name(&card
->gdev
->dev
));
467 qeth_setup_ccw(&card
->read
, iob
->data
, QETH_BUFSIZE
);
468 QETH_CARD_TEXT(card
, 6, "noirqpnd");
469 rc
= ccw_device_start(card
->read
.ccwdev
, &card
->read
.ccw
,
472 QETH_DBF_MESSAGE(2, "%s error in starting next read ccw! "
473 "rc=%i\n", dev_name(&card
->gdev
->dev
), rc
);
474 atomic_set(&card
->read
.irq_pending
, 0);
475 card
->read_or_write_problem
= 1;
476 qeth_schedule_recovery(card
);
477 wake_up(&card
->wait_q
);
482 static struct qeth_reply
*qeth_alloc_reply(struct qeth_card
*card
)
484 struct qeth_reply
*reply
;
486 reply
= kzalloc(sizeof(struct qeth_reply
), GFP_ATOMIC
);
488 atomic_set(&reply
->refcnt
, 1);
489 atomic_set(&reply
->received
, 0);
495 static void qeth_get_reply(struct qeth_reply
*reply
)
497 WARN_ON(atomic_read(&reply
->refcnt
) <= 0);
498 atomic_inc(&reply
->refcnt
);
501 static void qeth_put_reply(struct qeth_reply
*reply
)
503 WARN_ON(atomic_read(&reply
->refcnt
) <= 0);
504 if (atomic_dec_and_test(&reply
->refcnt
))
508 static void qeth_issue_ipa_msg(struct qeth_ipa_cmd
*cmd
, int rc
,
509 struct qeth_card
*card
)
512 int com
= cmd
->hdr
.command
;
513 ipa_name
= qeth_get_ipa_cmd_name(com
);
515 QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s/%s returned "
517 ipa_name
, com
, dev_name(&card
->gdev
->dev
),
518 QETH_CARD_IFNAME(card
), rc
,
519 qeth_get_ipa_msg(rc
));
521 QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s/%s succeeded\n",
522 ipa_name
, com
, dev_name(&card
->gdev
->dev
),
523 QETH_CARD_IFNAME(card
));
526 static struct qeth_ipa_cmd
*qeth_check_ipa_data(struct qeth_card
*card
,
527 struct qeth_cmd_buffer
*iob
)
529 struct qeth_ipa_cmd
*cmd
= NULL
;
531 QETH_CARD_TEXT(card
, 5, "chkipad");
532 if (IS_IPA(iob
->data
)) {
533 cmd
= (struct qeth_ipa_cmd
*) PDU_ENCAPSULATION(iob
->data
);
534 if (IS_IPA_REPLY(cmd
)) {
535 if (cmd
->hdr
.command
!= IPA_CMD_SETCCID
&&
536 cmd
->hdr
.command
!= IPA_CMD_DELCCID
&&
537 cmd
->hdr
.command
!= IPA_CMD_MODCCID
&&
538 cmd
->hdr
.command
!= IPA_CMD_SET_DIAG_ASS
)
539 qeth_issue_ipa_msg(cmd
,
540 cmd
->hdr
.return_code
, card
);
543 switch (cmd
->hdr
.command
) {
544 case IPA_CMD_STOPLAN
:
545 dev_warn(&card
->gdev
->dev
,
546 "The link for interface %s on CHPID"
548 QETH_CARD_IFNAME(card
),
550 card
->lan_online
= 0;
551 if (card
->dev
&& netif_carrier_ok(card
->dev
))
552 netif_carrier_off(card
->dev
);
554 case IPA_CMD_STARTLAN
:
555 dev_info(&card
->gdev
->dev
,
556 "The link for %s on CHPID 0x%X has"
558 QETH_CARD_IFNAME(card
),
560 netif_carrier_on(card
->dev
);
561 card
->lan_online
= 1;
562 if (card
->info
.hwtrap
)
563 card
->info
.hwtrap
= 2;
564 qeth_schedule_recovery(card
);
566 case IPA_CMD_MODCCID
:
568 case IPA_CMD_REGISTER_LOCAL_ADDR
:
569 QETH_CARD_TEXT(card
, 3, "irla");
571 case IPA_CMD_UNREGISTER_LOCAL_ADDR
:
572 QETH_CARD_TEXT(card
, 3, "urla");
575 QETH_DBF_MESSAGE(2, "Received data is IPA "
576 "but not a reply!\n");
584 void qeth_clear_ipacmd_list(struct qeth_card
*card
)
586 struct qeth_reply
*reply
, *r
;
589 QETH_CARD_TEXT(card
, 4, "clipalst");
591 spin_lock_irqsave(&card
->lock
, flags
);
592 list_for_each_entry_safe(reply
, r
, &card
->cmd_waiter_list
, list
) {
593 qeth_get_reply(reply
);
595 atomic_inc(&reply
->received
);
596 list_del_init(&reply
->list
);
597 wake_up(&reply
->wait_q
);
598 qeth_put_reply(reply
);
600 spin_unlock_irqrestore(&card
->lock
, flags
);
601 atomic_set(&card
->write
.irq_pending
, 0);
603 EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list
);
605 static int qeth_check_idx_response(struct qeth_card
*card
,
606 unsigned char *buffer
)
611 QETH_DBF_HEX(CTRL
, 2, buffer
, QETH_DBF_CTRL_LEN
);
612 if ((buffer
[2] & 0xc0) == 0xc0) {
613 QETH_DBF_MESSAGE(2, "received an IDX TERMINATE "
614 "with cause code 0x%02x%s\n",
616 ((buffer
[4] == 0x22) ?
617 " -- try another portname" : ""));
618 QETH_CARD_TEXT(card
, 2, "ckidxres");
619 QETH_CARD_TEXT(card
, 2, " idxterm");
620 QETH_CARD_TEXT_(card
, 2, " rc%d", -EIO
);
621 if (buffer
[4] == 0xf6) {
622 dev_err(&card
->gdev
->dev
,
623 "The qeth device is not configured "
624 "for the OSI layer required by z/VM\n");
632 static void qeth_setup_ccw(struct qeth_channel
*channel
, unsigned char *iob
,
635 struct qeth_card
*card
;
637 card
= CARD_FROM_CDEV(channel
->ccwdev
);
638 QETH_CARD_TEXT(card
, 4, "setupccw");
639 if (channel
== &card
->read
)
640 memcpy(&channel
->ccw
, READ_CCW
, sizeof(struct ccw1
));
642 memcpy(&channel
->ccw
, WRITE_CCW
, sizeof(struct ccw1
));
643 channel
->ccw
.count
= len
;
644 channel
->ccw
.cda
= (__u32
) __pa(iob
);
647 static struct qeth_cmd_buffer
*__qeth_get_buffer(struct qeth_channel
*channel
)
651 QETH_CARD_TEXT(CARD_FROM_CDEV(channel
->ccwdev
), 6, "getbuff");
652 index
= channel
->io_buf_no
;
654 if (channel
->iob
[index
].state
== BUF_STATE_FREE
) {
655 channel
->iob
[index
].state
= BUF_STATE_LOCKED
;
656 channel
->io_buf_no
= (channel
->io_buf_no
+ 1) %
658 memset(channel
->iob
[index
].data
, 0, QETH_BUFSIZE
);
659 return channel
->iob
+ index
;
661 index
= (index
+ 1) % QETH_CMD_BUFFER_NO
;
662 } while (index
!= channel
->io_buf_no
);
667 void qeth_release_buffer(struct qeth_channel
*channel
,
668 struct qeth_cmd_buffer
*iob
)
672 QETH_CARD_TEXT(CARD_FROM_CDEV(channel
->ccwdev
), 6, "relbuff");
673 spin_lock_irqsave(&channel
->iob_lock
, flags
);
674 memset(iob
->data
, 0, QETH_BUFSIZE
);
675 iob
->state
= BUF_STATE_FREE
;
676 iob
->callback
= qeth_send_control_data_cb
;
678 spin_unlock_irqrestore(&channel
->iob_lock
, flags
);
679 wake_up(&channel
->wait_q
);
681 EXPORT_SYMBOL_GPL(qeth_release_buffer
);
683 static struct qeth_cmd_buffer
*qeth_get_buffer(struct qeth_channel
*channel
)
685 struct qeth_cmd_buffer
*buffer
= NULL
;
688 spin_lock_irqsave(&channel
->iob_lock
, flags
);
689 buffer
= __qeth_get_buffer(channel
);
690 spin_unlock_irqrestore(&channel
->iob_lock
, flags
);
694 struct qeth_cmd_buffer
*qeth_wait_for_buffer(struct qeth_channel
*channel
)
696 struct qeth_cmd_buffer
*buffer
;
697 wait_event(channel
->wait_q
,
698 ((buffer
= qeth_get_buffer(channel
)) != NULL
));
701 EXPORT_SYMBOL_GPL(qeth_wait_for_buffer
);
703 void qeth_clear_cmd_buffers(struct qeth_channel
*channel
)
707 for (cnt
= 0; cnt
< QETH_CMD_BUFFER_NO
; cnt
++)
708 qeth_release_buffer(channel
, &channel
->iob
[cnt
]);
710 channel
->io_buf_no
= 0;
712 EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers
);
714 static void qeth_send_control_data_cb(struct qeth_channel
*channel
,
715 struct qeth_cmd_buffer
*iob
)
717 struct qeth_card
*card
;
718 struct qeth_reply
*reply
, *r
;
719 struct qeth_ipa_cmd
*cmd
;
724 card
= CARD_FROM_CDEV(channel
->ccwdev
);
725 QETH_CARD_TEXT(card
, 4, "sndctlcb");
726 rc
= qeth_check_idx_response(card
, iob
->data
);
731 qeth_clear_ipacmd_list(card
);
732 qeth_schedule_recovery(card
);
738 cmd
= qeth_check_ipa_data(card
, iob
);
739 if ((cmd
== NULL
) && (card
->state
!= CARD_STATE_DOWN
))
741 /*in case of OSN : check if cmd is set */
742 if (card
->info
.type
== QETH_CARD_TYPE_OSN
&&
744 cmd
->hdr
.command
!= IPA_CMD_STARTLAN
&&
745 card
->osn_info
.assist_cb
!= NULL
) {
746 card
->osn_info
.assist_cb(card
->dev
, cmd
);
750 spin_lock_irqsave(&card
->lock
, flags
);
751 list_for_each_entry_safe(reply
, r
, &card
->cmd_waiter_list
, list
) {
752 if ((reply
->seqno
== QETH_IDX_COMMAND_SEQNO
) ||
753 ((cmd
) && (reply
->seqno
== cmd
->hdr
.seqno
))) {
754 qeth_get_reply(reply
);
755 list_del_init(&reply
->list
);
756 spin_unlock_irqrestore(&card
->lock
, flags
);
758 if (reply
->callback
!= NULL
) {
760 reply
->offset
= (__u16
)((char *)cmd
-
762 keep_reply
= reply
->callback(card
,
766 keep_reply
= reply
->callback(card
,
771 reply
->rc
= (u16
) cmd
->hdr
.return_code
;
775 spin_lock_irqsave(&card
->lock
, flags
);
776 list_add_tail(&reply
->list
,
777 &card
->cmd_waiter_list
);
778 spin_unlock_irqrestore(&card
->lock
, flags
);
780 atomic_inc(&reply
->received
);
781 wake_up(&reply
->wait_q
);
783 qeth_put_reply(reply
);
787 spin_unlock_irqrestore(&card
->lock
, flags
);
789 memcpy(&card
->seqno
.pdu_hdr_ack
,
790 QETH_PDU_HEADER_SEQ_NO(iob
->data
),
792 qeth_release_buffer(channel
, iob
);
795 static int qeth_setup_channel(struct qeth_channel
*channel
)
799 QETH_DBF_TEXT(SETUP
, 2, "setupch");
800 for (cnt
= 0; cnt
< QETH_CMD_BUFFER_NO
; cnt
++) {
801 channel
->iob
[cnt
].data
=
802 kzalloc(QETH_BUFSIZE
, GFP_DMA
|GFP_KERNEL
);
803 if (channel
->iob
[cnt
].data
== NULL
)
805 channel
->iob
[cnt
].state
= BUF_STATE_FREE
;
806 channel
->iob
[cnt
].channel
= channel
;
807 channel
->iob
[cnt
].callback
= qeth_send_control_data_cb
;
808 channel
->iob
[cnt
].rc
= 0;
810 if (cnt
< QETH_CMD_BUFFER_NO
) {
812 kfree(channel
->iob
[cnt
].data
);
816 channel
->io_buf_no
= 0;
817 atomic_set(&channel
->irq_pending
, 0);
818 spin_lock_init(&channel
->iob_lock
);
820 init_waitqueue_head(&channel
->wait_q
);
824 static int qeth_set_thread_start_bit(struct qeth_card
*card
,
825 unsigned long thread
)
829 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
830 if (!(card
->thread_allowed_mask
& thread
) ||
831 (card
->thread_start_mask
& thread
)) {
832 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
835 card
->thread_start_mask
|= thread
;
836 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
840 void qeth_clear_thread_start_bit(struct qeth_card
*card
, unsigned long thread
)
844 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
845 card
->thread_start_mask
&= ~thread
;
846 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
847 wake_up(&card
->wait_q
);
849 EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit
);
851 void qeth_clear_thread_running_bit(struct qeth_card
*card
, unsigned long thread
)
855 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
856 card
->thread_running_mask
&= ~thread
;
857 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
858 wake_up(&card
->wait_q
);
860 EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit
);
862 static int __qeth_do_run_thread(struct qeth_card
*card
, unsigned long thread
)
867 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
868 if (card
->thread_start_mask
& thread
) {
869 if ((card
->thread_allowed_mask
& thread
) &&
870 !(card
->thread_running_mask
& thread
)) {
872 card
->thread_start_mask
&= ~thread
;
873 card
->thread_running_mask
|= thread
;
877 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
881 int qeth_do_run_thread(struct qeth_card
*card
, unsigned long thread
)
885 wait_event(card
->wait_q
,
886 (rc
= __qeth_do_run_thread(card
, thread
)) >= 0);
889 EXPORT_SYMBOL_GPL(qeth_do_run_thread
);
891 void qeth_schedule_recovery(struct qeth_card
*card
)
893 QETH_CARD_TEXT(card
, 2, "startrec");
894 if (qeth_set_thread_start_bit(card
, QETH_RECOVER_THREAD
) == 0)
895 schedule_work(&card
->kernel_thread_starter
);
897 EXPORT_SYMBOL_GPL(qeth_schedule_recovery
);
899 static int qeth_get_problem(struct ccw_device
*cdev
, struct irb
*irb
)
903 struct qeth_card
*card
;
905 sense
= (char *) irb
->ecw
;
906 cstat
= irb
->scsw
.cmd
.cstat
;
907 dstat
= irb
->scsw
.cmd
.dstat
;
908 card
= CARD_FROM_CDEV(cdev
);
910 if (cstat
& (SCHN_STAT_CHN_CTRL_CHK
| SCHN_STAT_INTF_CTRL_CHK
|
911 SCHN_STAT_CHN_DATA_CHK
| SCHN_STAT_CHAIN_CHECK
|
912 SCHN_STAT_PROT_CHECK
| SCHN_STAT_PROG_CHECK
)) {
913 QETH_CARD_TEXT(card
, 2, "CGENCHK");
914 dev_warn(&cdev
->dev
, "The qeth device driver "
915 "failed to recover an error on the device\n");
916 QETH_DBF_MESSAGE(2, "%s check on device dstat=x%x, cstat=x%x\n",
917 dev_name(&cdev
->dev
), dstat
, cstat
);
918 print_hex_dump(KERN_WARNING
, "qeth: irb ", DUMP_PREFIX_OFFSET
,
923 if (dstat
& DEV_STAT_UNIT_CHECK
) {
924 if (sense
[SENSE_RESETTING_EVENT_BYTE
] &
925 SENSE_RESETTING_EVENT_FLAG
) {
926 QETH_CARD_TEXT(card
, 2, "REVIND");
929 if (sense
[SENSE_COMMAND_REJECT_BYTE
] &
930 SENSE_COMMAND_REJECT_FLAG
) {
931 QETH_CARD_TEXT(card
, 2, "CMDREJi");
934 if ((sense
[2] == 0xaf) && (sense
[3] == 0xfe)) {
935 QETH_CARD_TEXT(card
, 2, "AFFE");
938 if ((!sense
[0]) && (!sense
[1]) && (!sense
[2]) && (!sense
[3])) {
939 QETH_CARD_TEXT(card
, 2, "ZEROSEN");
942 QETH_CARD_TEXT(card
, 2, "DGENCHK");
948 static long __qeth_check_irb_error(struct ccw_device
*cdev
,
949 unsigned long intparm
, struct irb
*irb
)
951 struct qeth_card
*card
;
953 card
= CARD_FROM_CDEV(cdev
);
958 switch (PTR_ERR(irb
)) {
960 QETH_DBF_MESSAGE(2, "%s i/o-error on device\n",
961 dev_name(&cdev
->dev
));
962 QETH_CARD_TEXT(card
, 2, "ckirberr");
963 QETH_CARD_TEXT_(card
, 2, " rc%d", -EIO
);
966 dev_warn(&cdev
->dev
, "A hardware operation timed out"
968 QETH_CARD_TEXT(card
, 2, "ckirberr");
969 QETH_CARD_TEXT_(card
, 2, " rc%d", -ETIMEDOUT
);
970 if (intparm
== QETH_RCD_PARM
) {
971 if (card
&& (card
->data
.ccwdev
== cdev
)) {
972 card
->data
.state
= CH_STATE_DOWN
;
973 wake_up(&card
->wait_q
);
978 QETH_DBF_MESSAGE(2, "%s unknown error %ld on device\n",
979 dev_name(&cdev
->dev
), PTR_ERR(irb
));
980 QETH_CARD_TEXT(card
, 2, "ckirberr");
981 QETH_CARD_TEXT(card
, 2, " rc???");
986 static void qeth_irq(struct ccw_device
*cdev
, unsigned long intparm
,
991 struct qeth_cmd_buffer
*buffer
;
992 struct qeth_channel
*channel
;
993 struct qeth_card
*card
;
994 struct qeth_cmd_buffer
*iob
;
997 if (__qeth_check_irb_error(cdev
, intparm
, irb
))
999 cstat
= irb
->scsw
.cmd
.cstat
;
1000 dstat
= irb
->scsw
.cmd
.dstat
;
1002 card
= CARD_FROM_CDEV(cdev
);
1006 QETH_CARD_TEXT(card
, 5, "irq");
1008 if (card
->read
.ccwdev
== cdev
) {
1009 channel
= &card
->read
;
1010 QETH_CARD_TEXT(card
, 5, "read");
1011 } else if (card
->write
.ccwdev
== cdev
) {
1012 channel
= &card
->write
;
1013 QETH_CARD_TEXT(card
, 5, "write");
1015 channel
= &card
->data
;
1016 QETH_CARD_TEXT(card
, 5, "data");
1018 atomic_set(&channel
->irq_pending
, 0);
1020 if (irb
->scsw
.cmd
.fctl
& (SCSW_FCTL_CLEAR_FUNC
))
1021 channel
->state
= CH_STATE_STOPPED
;
1023 if (irb
->scsw
.cmd
.fctl
& (SCSW_FCTL_HALT_FUNC
))
1024 channel
->state
= CH_STATE_HALTED
;
1026 /*let's wake up immediately on data channel*/
1027 if ((channel
== &card
->data
) && (intparm
!= 0) &&
1028 (intparm
!= QETH_RCD_PARM
))
1031 if (intparm
== QETH_CLEAR_CHANNEL_PARM
) {
1032 QETH_CARD_TEXT(card
, 6, "clrchpar");
1033 /* we don't have to handle this further */
1036 if (intparm
== QETH_HALT_CHANNEL_PARM
) {
1037 QETH_CARD_TEXT(card
, 6, "hltchpar");
1038 /* we don't have to handle this further */
1041 if ((dstat
& DEV_STAT_UNIT_EXCEP
) ||
1042 (dstat
& DEV_STAT_UNIT_CHECK
) ||
1044 if (irb
->esw
.esw0
.erw
.cons
) {
1045 dev_warn(&channel
->ccwdev
->dev
,
1046 "The qeth device driver failed to recover "
1047 "an error on the device\n");
1048 QETH_DBF_MESSAGE(2, "%s sense data available. cstat "
1049 "0x%X dstat 0x%X\n",
1050 dev_name(&channel
->ccwdev
->dev
), cstat
, dstat
);
1051 print_hex_dump(KERN_WARNING
, "qeth: irb ",
1052 DUMP_PREFIX_OFFSET
, 16, 1, irb
, 32, 1);
1053 print_hex_dump(KERN_WARNING
, "qeth: sense data ",
1054 DUMP_PREFIX_OFFSET
, 16, 1, irb
->ecw
, 32, 1);
1056 if (intparm
== QETH_RCD_PARM
) {
1057 channel
->state
= CH_STATE_DOWN
;
1060 rc
= qeth_get_problem(cdev
, irb
);
1062 qeth_clear_ipacmd_list(card
);
1063 qeth_schedule_recovery(card
);
1068 if (intparm
== QETH_RCD_PARM
) {
1069 channel
->state
= CH_STATE_RCD_DONE
;
1073 buffer
= (struct qeth_cmd_buffer
*) __va((addr_t
)intparm
);
1074 buffer
->state
= BUF_STATE_PROCESSED
;
1076 if (channel
== &card
->data
)
1078 if (channel
== &card
->read
&&
1079 channel
->state
== CH_STATE_UP
)
1080 qeth_issue_next_read(card
);
1083 index
= channel
->buf_no
;
1084 while (iob
[index
].state
== BUF_STATE_PROCESSED
) {
1085 if (iob
[index
].callback
!= NULL
)
1086 iob
[index
].callback(channel
, iob
+ index
);
1088 index
= (index
+ 1) % QETH_CMD_BUFFER_NO
;
1090 channel
->buf_no
= index
;
1092 wake_up(&card
->wait_q
);
1096 static void qeth_notify_skbs(struct qeth_qdio_out_q
*q
,
1097 struct qeth_qdio_out_buffer
*buf
,
1098 enum iucv_tx_notify notification
)
1100 struct sk_buff
*skb
;
1102 if (skb_queue_empty(&buf
->skb_list
))
1104 skb
= skb_peek(&buf
->skb_list
);
1106 QETH_CARD_TEXT_(q
->card
, 5, "skbn%d", notification
);
1107 QETH_CARD_TEXT_(q
->card
, 5, "%lx", (long) skb
);
1108 if (skb
->protocol
== ETH_P_AF_IUCV
) {
1110 struct iucv_sock
*iucv
= iucv_sk(skb
->sk
);
1111 iucv
->sk_txnotify(skb
, notification
);
1114 if (skb_queue_is_last(&buf
->skb_list
, skb
))
1117 skb
= skb_queue_next(&buf
->skb_list
, skb
);
1123 static void qeth_release_skbs(struct qeth_qdio_out_buffer
*buf
)
1125 struct sk_buff
*skb
;
1126 struct iucv_sock
*iucv
;
1127 int notify_general_error
= 0;
1129 if (atomic_read(&buf
->state
) == QETH_QDIO_BUF_PENDING
)
1130 notify_general_error
= 1;
1132 /* release may never happen from within CQ tasklet scope */
1133 WARN_ON_ONCE(atomic_read(&buf
->state
) == QETH_QDIO_BUF_IN_CQ
);
1135 skb
= skb_dequeue(&buf
->skb_list
);
1137 QETH_CARD_TEXT(buf
->q
->card
, 5, "skbr");
1138 QETH_CARD_TEXT_(buf
->q
->card
, 5, "%lx", (long) skb
);
1139 if (notify_general_error
&& skb
->protocol
== ETH_P_AF_IUCV
) {
1141 iucv
= iucv_sk(skb
->sk
);
1142 iucv
->sk_txnotify(skb
, TX_NOTIFY_GENERALERROR
);
1145 atomic_dec(&skb
->users
);
1146 dev_kfree_skb_any(skb
);
1147 skb
= skb_dequeue(&buf
->skb_list
);
1151 static void qeth_clear_output_buffer(struct qeth_qdio_out_q
*queue
,
1152 struct qeth_qdio_out_buffer
*buf
,
1153 enum qeth_qdio_buffer_states newbufstate
)
1157 /* is PCI flag set on buffer? */
1158 if (buf
->buffer
->element
[0].sflags
& SBAL_SFLAGS0_PCI_REQ
)
1159 atomic_dec(&queue
->set_pci_flags_count
);
1161 if (newbufstate
== QETH_QDIO_BUF_EMPTY
) {
1162 qeth_release_skbs(buf
);
1164 for (i
= 0; i
< QETH_MAX_BUFFER_ELEMENTS(queue
->card
); ++i
) {
1165 if (buf
->buffer
->element
[i
].addr
&& buf
->is_header
[i
])
1166 kmem_cache_free(qeth_core_header_cache
,
1167 buf
->buffer
->element
[i
].addr
);
1168 buf
->is_header
[i
] = 0;
1169 buf
->buffer
->element
[i
].length
= 0;
1170 buf
->buffer
->element
[i
].addr
= NULL
;
1171 buf
->buffer
->element
[i
].eflags
= 0;
1172 buf
->buffer
->element
[i
].sflags
= 0;
1174 buf
->buffer
->element
[15].eflags
= 0;
1175 buf
->buffer
->element
[15].sflags
= 0;
1176 buf
->next_element_to_fill
= 0;
1177 atomic_set(&buf
->state
, newbufstate
);
1180 static void qeth_clear_outq_buffers(struct qeth_qdio_out_q
*q
, int free
)
1184 for (j
= 0; j
< QDIO_MAX_BUFFERS_PER_Q
; ++j
) {
1187 qeth_cleanup_handled_pending(q
, j
, 1);
1188 qeth_clear_output_buffer(q
, q
->bufs
[j
], QETH_QDIO_BUF_EMPTY
);
1190 kmem_cache_free(qeth_qdio_outbuf_cache
, q
->bufs
[j
]);
1196 void qeth_clear_qdio_buffers(struct qeth_card
*card
)
1200 QETH_CARD_TEXT(card
, 2, "clearqdbf");
1201 /* clear outbound buffers to free skbs */
1202 for (i
= 0; i
< card
->qdio
.no_out_queues
; ++i
) {
1203 if (card
->qdio
.out_qs
[i
]) {
1204 qeth_clear_outq_buffers(card
->qdio
.out_qs
[i
], 0);
1208 EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers
);
1210 static void qeth_free_buffer_pool(struct qeth_card
*card
)
1212 struct qeth_buffer_pool_entry
*pool_entry
, *tmp
;
1214 list_for_each_entry_safe(pool_entry
, tmp
,
1215 &card
->qdio
.init_pool
.entry_list
, init_list
){
1216 for (i
= 0; i
< QETH_MAX_BUFFER_ELEMENTS(card
); ++i
)
1217 free_page((unsigned long)pool_entry
->elements
[i
]);
1218 list_del(&pool_entry
->init_list
);
1223 static void qeth_free_qdio_buffers(struct qeth_card
*card
)
1227 if (atomic_xchg(&card
->qdio
.state
, QETH_QDIO_UNINITIALIZED
) ==
1228 QETH_QDIO_UNINITIALIZED
)
1232 cancel_delayed_work_sync(&card
->buffer_reclaim_work
);
1233 for (j
= 0; j
< QDIO_MAX_BUFFERS_PER_Q
; ++j
)
1234 dev_kfree_skb_any(card
->qdio
.in_q
->bufs
[j
].rx_skb
);
1235 kfree(card
->qdio
.in_q
);
1236 card
->qdio
.in_q
= NULL
;
1237 /* inbound buffer pool */
1238 qeth_free_buffer_pool(card
);
1239 /* free outbound qdio_qs */
1240 if (card
->qdio
.out_qs
) {
1241 for (i
= 0; i
< card
->qdio
.no_out_queues
; ++i
) {
1242 qeth_clear_outq_buffers(card
->qdio
.out_qs
[i
], 1);
1243 kfree(card
->qdio
.out_qs
[i
]);
1245 kfree(card
->qdio
.out_qs
);
1246 card
->qdio
.out_qs
= NULL
;
1250 static void qeth_clean_channel(struct qeth_channel
*channel
)
1254 QETH_DBF_TEXT(SETUP
, 2, "freech");
1255 for (cnt
= 0; cnt
< QETH_CMD_BUFFER_NO
; cnt
++)
1256 kfree(channel
->iob
[cnt
].data
);
1259 static void qeth_set_single_write_queues(struct qeth_card
*card
)
1261 if ((atomic_read(&card
->qdio
.state
) != QETH_QDIO_UNINITIALIZED
) &&
1262 (card
->qdio
.no_out_queues
== 4))
1263 qeth_free_qdio_buffers(card
);
1265 card
->qdio
.no_out_queues
= 1;
1266 if (card
->qdio
.default_out_queue
!= 0)
1267 dev_info(&card
->gdev
->dev
, "Priority Queueing not supported\n");
1269 card
->qdio
.default_out_queue
= 0;
1272 static void qeth_set_multiple_write_queues(struct qeth_card
*card
)
1274 if ((atomic_read(&card
->qdio
.state
) != QETH_QDIO_UNINITIALIZED
) &&
1275 (card
->qdio
.no_out_queues
== 1)) {
1276 qeth_free_qdio_buffers(card
);
1277 card
->qdio
.default_out_queue
= 2;
1279 card
->qdio
.no_out_queues
= 4;
1282 static void qeth_update_from_chp_desc(struct qeth_card
*card
)
1284 struct ccw_device
*ccwdev
;
1285 struct channelPath_dsc
{
1296 QETH_DBF_TEXT(SETUP
, 2, "chp_desc");
1298 ccwdev
= card
->data
.ccwdev
;
1299 chp_dsc
= ccw_device_get_chp_desc(ccwdev
, 0);
1303 card
->info
.func_level
= 0x4100 + chp_dsc
->desc
;
1304 if (card
->info
.type
== QETH_CARD_TYPE_IQD
)
1307 /* CHPP field bit 6 == 1 -> single queue */
1308 if ((chp_dsc
->chpp
& 0x02) == 0x02)
1309 qeth_set_single_write_queues(card
);
1311 qeth_set_multiple_write_queues(card
);
1314 QETH_DBF_TEXT_(SETUP
, 2, "nr:%x", card
->qdio
.no_out_queues
);
1315 QETH_DBF_TEXT_(SETUP
, 2, "lvl:%02x", card
->info
.func_level
);
1318 static void qeth_init_qdio_info(struct qeth_card
*card
)
1320 QETH_DBF_TEXT(SETUP
, 4, "intqdinf");
1321 atomic_set(&card
->qdio
.state
, QETH_QDIO_UNINITIALIZED
);
1323 card
->qdio
.in_buf_size
= QETH_IN_BUF_SIZE_DEFAULT
;
1324 if (card
->info
.type
== QETH_CARD_TYPE_IQD
)
1325 card
->qdio
.init_pool
.buf_count
= QETH_IN_BUF_COUNT_HSDEFAULT
;
1327 card
->qdio
.init_pool
.buf_count
= QETH_IN_BUF_COUNT_DEFAULT
;
1328 card
->qdio
.in_buf_pool
.buf_count
= card
->qdio
.init_pool
.buf_count
;
1329 INIT_LIST_HEAD(&card
->qdio
.in_buf_pool
.entry_list
);
1330 INIT_LIST_HEAD(&card
->qdio
.init_pool
.entry_list
);
1333 static void qeth_set_intial_options(struct qeth_card
*card
)
1335 card
->options
.route4
.type
= NO_ROUTER
;
1336 card
->options
.route6
.type
= NO_ROUTER
;
1337 card
->options
.fake_broadcast
= 0;
1338 card
->options
.add_hhlen
= DEFAULT_ADD_HHLEN
;
1339 card
->options
.performance_stats
= 0;
1340 card
->options
.rx_sg_cb
= QETH_RX_SG_CB
;
1341 card
->options
.isolation
= ISOLATION_MODE_NONE
;
1342 card
->options
.cq
= QETH_CQ_DISABLED
;
1345 static int qeth_do_start_thread(struct qeth_card
*card
, unsigned long thread
)
1347 unsigned long flags
;
1350 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
1351 QETH_CARD_TEXT_(card
, 4, " %02x%02x%02x",
1352 (u8
) card
->thread_start_mask
,
1353 (u8
) card
->thread_allowed_mask
,
1354 (u8
) card
->thread_running_mask
);
1355 rc
= (card
->thread_start_mask
& thread
);
1356 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
1360 static void qeth_start_kernel_thread(struct work_struct
*work
)
1362 struct task_struct
*ts
;
1363 struct qeth_card
*card
= container_of(work
, struct qeth_card
,
1364 kernel_thread_starter
);
1365 QETH_CARD_TEXT(card
, 2, "strthrd");
1367 if (card
->read
.state
!= CH_STATE_UP
&&
1368 card
->write
.state
!= CH_STATE_UP
)
1370 if (qeth_do_start_thread(card
, QETH_RECOVER_THREAD
)) {
1371 ts
= kthread_run(card
->discipline
->recover
, (void *)card
,
1374 qeth_clear_thread_start_bit(card
, QETH_RECOVER_THREAD
);
1375 qeth_clear_thread_running_bit(card
,
1376 QETH_RECOVER_THREAD
);
1381 static int qeth_setup_card(struct qeth_card
*card
)
1384 QETH_DBF_TEXT(SETUP
, 2, "setupcrd");
1385 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
1387 card
->read
.state
= CH_STATE_DOWN
;
1388 card
->write
.state
= CH_STATE_DOWN
;
1389 card
->data
.state
= CH_STATE_DOWN
;
1390 card
->state
= CARD_STATE_DOWN
;
1391 card
->lan_online
= 0;
1392 card
->read_or_write_problem
= 0;
1394 spin_lock_init(&card
->vlanlock
);
1395 spin_lock_init(&card
->mclock
);
1396 spin_lock_init(&card
->lock
);
1397 spin_lock_init(&card
->ip_lock
);
1398 spin_lock_init(&card
->thread_mask_lock
);
1399 mutex_init(&card
->conf_mutex
);
1400 mutex_init(&card
->discipline_mutex
);
1401 card
->thread_start_mask
= 0;
1402 card
->thread_allowed_mask
= 0;
1403 card
->thread_running_mask
= 0;
1404 INIT_WORK(&card
->kernel_thread_starter
, qeth_start_kernel_thread
);
1405 INIT_LIST_HEAD(&card
->ip_list
);
1406 INIT_LIST_HEAD(card
->ip_tbd_list
);
1407 INIT_LIST_HEAD(&card
->cmd_waiter_list
);
1408 init_waitqueue_head(&card
->wait_q
);
1409 /* initial options */
1410 qeth_set_intial_options(card
);
1411 /* IP address takeover */
1412 INIT_LIST_HEAD(&card
->ipato
.entries
);
1413 card
->ipato
.enabled
= 0;
1414 card
->ipato
.invert4
= 0;
1415 card
->ipato
.invert6
= 0;
1416 /* init QDIO stuff */
1417 qeth_init_qdio_info(card
);
1418 INIT_DELAYED_WORK(&card
->buffer_reclaim_work
, qeth_buffer_reclaim_work
);
1422 static void qeth_core_sl_print(struct seq_file
*m
, struct service_level
*slr
)
1424 struct qeth_card
*card
= container_of(slr
, struct qeth_card
,
1425 qeth_service_level
);
1426 if (card
->info
.mcl_level
[0])
1427 seq_printf(m
, "qeth: %s firmware level %s\n",
1428 CARD_BUS_ID(card
), card
->info
.mcl_level
);
1431 static struct qeth_card
*qeth_alloc_card(void)
1433 struct qeth_card
*card
;
1435 QETH_DBF_TEXT(SETUP
, 2, "alloccrd");
1436 card
= kzalloc(sizeof(struct qeth_card
), GFP_DMA
|GFP_KERNEL
);
1439 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
1440 card
->ip_tbd_list
= kzalloc(sizeof(struct list_head
), GFP_KERNEL
);
1441 if (!card
->ip_tbd_list
) {
1442 QETH_DBF_TEXT(SETUP
, 0, "iptbdnom");
1445 if (qeth_setup_channel(&card
->read
))
1447 if (qeth_setup_channel(&card
->write
))
1449 card
->options
.layer2
= -1;
1450 card
->qeth_service_level
.seq_print
= qeth_core_sl_print
;
1451 register_service_level(&card
->qeth_service_level
);
1455 qeth_clean_channel(&card
->read
);
1457 kfree(card
->ip_tbd_list
);
1464 static int qeth_determine_card_type(struct qeth_card
*card
)
1468 QETH_DBF_TEXT(SETUP
, 2, "detcdtyp");
1470 card
->qdio
.do_prio_queueing
= QETH_PRIOQ_DEFAULT
;
1471 card
->qdio
.default_out_queue
= QETH_DEFAULT_QUEUE
;
1472 while (known_devices
[i
][QETH_DEV_MODEL_IND
]) {
1473 if ((CARD_RDEV(card
)->id
.dev_type
==
1474 known_devices
[i
][QETH_DEV_TYPE_IND
]) &&
1475 (CARD_RDEV(card
)->id
.dev_model
==
1476 known_devices
[i
][QETH_DEV_MODEL_IND
])) {
1477 card
->info
.type
= known_devices
[i
][QETH_DEV_MODEL_IND
];
1478 card
->qdio
.no_out_queues
=
1479 known_devices
[i
][QETH_QUEUE_NO_IND
];
1480 card
->qdio
.no_in_queues
= 1;
1481 card
->info
.is_multicast_different
=
1482 known_devices
[i
][QETH_MULTICAST_IND
];
1483 qeth_update_from_chp_desc(card
);
1488 card
->info
.type
= QETH_CARD_TYPE_UNKNOWN
;
1489 dev_err(&card
->gdev
->dev
, "The adapter hardware is of an "
1494 static int qeth_clear_channel(struct qeth_channel
*channel
)
1496 unsigned long flags
;
1497 struct qeth_card
*card
;
1500 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1501 QETH_CARD_TEXT(card
, 3, "clearch");
1502 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
1503 rc
= ccw_device_clear(channel
->ccwdev
, QETH_CLEAR_CHANNEL_PARM
);
1504 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
1508 rc
= wait_event_interruptible_timeout(card
->wait_q
,
1509 channel
->state
== CH_STATE_STOPPED
, QETH_TIMEOUT
);
1510 if (rc
== -ERESTARTSYS
)
1512 if (channel
->state
!= CH_STATE_STOPPED
)
1514 channel
->state
= CH_STATE_DOWN
;
1518 static int qeth_halt_channel(struct qeth_channel
*channel
)
1520 unsigned long flags
;
1521 struct qeth_card
*card
;
1524 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1525 QETH_CARD_TEXT(card
, 3, "haltch");
1526 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
1527 rc
= ccw_device_halt(channel
->ccwdev
, QETH_HALT_CHANNEL_PARM
);
1528 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
1532 rc
= wait_event_interruptible_timeout(card
->wait_q
,
1533 channel
->state
== CH_STATE_HALTED
, QETH_TIMEOUT
);
1534 if (rc
== -ERESTARTSYS
)
1536 if (channel
->state
!= CH_STATE_HALTED
)
1541 static int qeth_halt_channels(struct qeth_card
*card
)
1543 int rc1
= 0, rc2
= 0, rc3
= 0;
1545 QETH_CARD_TEXT(card
, 3, "haltchs");
1546 rc1
= qeth_halt_channel(&card
->read
);
1547 rc2
= qeth_halt_channel(&card
->write
);
1548 rc3
= qeth_halt_channel(&card
->data
);
1556 static int qeth_clear_channels(struct qeth_card
*card
)
1558 int rc1
= 0, rc2
= 0, rc3
= 0;
1560 QETH_CARD_TEXT(card
, 3, "clearchs");
1561 rc1
= qeth_clear_channel(&card
->read
);
1562 rc2
= qeth_clear_channel(&card
->write
);
1563 rc3
= qeth_clear_channel(&card
->data
);
1571 static int qeth_clear_halt_card(struct qeth_card
*card
, int halt
)
1575 QETH_CARD_TEXT(card
, 3, "clhacrd");
1578 rc
= qeth_halt_channels(card
);
1581 return qeth_clear_channels(card
);
1584 int qeth_qdio_clear_card(struct qeth_card
*card
, int use_halt
)
1588 QETH_CARD_TEXT(card
, 3, "qdioclr");
1589 switch (atomic_cmpxchg(&card
->qdio
.state
, QETH_QDIO_ESTABLISHED
,
1590 QETH_QDIO_CLEANING
)) {
1591 case QETH_QDIO_ESTABLISHED
:
1592 if (card
->info
.type
== QETH_CARD_TYPE_IQD
)
1593 rc
= qdio_shutdown(CARD_DDEV(card
),
1594 QDIO_FLAG_CLEANUP_USING_HALT
);
1596 rc
= qdio_shutdown(CARD_DDEV(card
),
1597 QDIO_FLAG_CLEANUP_USING_CLEAR
);
1599 QETH_CARD_TEXT_(card
, 3, "1err%d", rc
);
1600 qdio_free(CARD_DDEV(card
));
1601 atomic_set(&card
->qdio
.state
, QETH_QDIO_ALLOCATED
);
1603 case QETH_QDIO_CLEANING
:
1608 rc
= qeth_clear_halt_card(card
, use_halt
);
1610 QETH_CARD_TEXT_(card
, 3, "2err%d", rc
);
1611 card
->state
= CARD_STATE_DOWN
;
1614 EXPORT_SYMBOL_GPL(qeth_qdio_clear_card
);
1616 static int qeth_read_conf_data(struct qeth_card
*card
, void **buffer
,
1622 struct qeth_channel
*channel
= &card
->data
;
1623 unsigned long flags
;
1626 * scan for RCD command in extended SenseID data
1628 ciw
= ccw_device_get_ciw(channel
->ccwdev
, CIW_TYPE_RCD
);
1629 if (!ciw
|| ciw
->cmd
== 0)
1631 rcd_buf
= kzalloc(ciw
->count
, GFP_KERNEL
| GFP_DMA
);
1635 channel
->ccw
.cmd_code
= ciw
->cmd
;
1636 channel
->ccw
.cda
= (__u32
) __pa(rcd_buf
);
1637 channel
->ccw
.count
= ciw
->count
;
1638 channel
->ccw
.flags
= CCW_FLAG_SLI
;
1639 channel
->state
= CH_STATE_RCD
;
1640 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
1641 ret
= ccw_device_start_timeout(channel
->ccwdev
, &channel
->ccw
,
1642 QETH_RCD_PARM
, LPM_ANYPATH
, 0,
1644 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
1646 wait_event(card
->wait_q
,
1647 (channel
->state
== CH_STATE_RCD_DONE
||
1648 channel
->state
== CH_STATE_DOWN
));
1649 if (channel
->state
== CH_STATE_DOWN
)
1652 channel
->state
= CH_STATE_DOWN
;
1658 *length
= ciw
->count
;
1664 static void qeth_configure_unitaddr(struct qeth_card
*card
, char *prcd
)
1666 QETH_DBF_TEXT(SETUP
, 2, "cfgunit");
1667 card
->info
.chpid
= prcd
[30];
1668 card
->info
.unit_addr2
= prcd
[31];
1669 card
->info
.cula
= prcd
[63];
1670 card
->info
.guestlan
= ((prcd
[0x10] == _ascebc
['V']) &&
1671 (prcd
[0x11] == _ascebc
['M']));
1674 static void qeth_configure_blkt_default(struct qeth_card
*card
, char *prcd
)
1676 QETH_DBF_TEXT(SETUP
, 2, "cfgblkt");
1678 if (prcd
[74] == 0xF0 && prcd
[75] == 0xF0 &&
1679 (prcd
[76] == 0xF5 || prcd
[76] == 0xF6)) {
1680 card
->info
.blkt
.time_total
= 250;
1681 card
->info
.blkt
.inter_packet
= 5;
1682 card
->info
.blkt
.inter_packet_jumbo
= 15;
1684 card
->info
.blkt
.time_total
= 0;
1685 card
->info
.blkt
.inter_packet
= 0;
1686 card
->info
.blkt
.inter_packet_jumbo
= 0;
1690 static void qeth_init_tokens(struct qeth_card
*card
)
1692 card
->token
.issuer_rm_w
= 0x00010103UL
;
1693 card
->token
.cm_filter_w
= 0x00010108UL
;
1694 card
->token
.cm_connection_w
= 0x0001010aUL
;
1695 card
->token
.ulp_filter_w
= 0x0001010bUL
;
1696 card
->token
.ulp_connection_w
= 0x0001010dUL
;
1699 static void qeth_init_func_level(struct qeth_card
*card
)
1701 switch (card
->info
.type
) {
1702 case QETH_CARD_TYPE_IQD
:
1703 card
->info
.func_level
= QETH_IDX_FUNC_LEVEL_IQD
;
1705 case QETH_CARD_TYPE_OSD
:
1706 case QETH_CARD_TYPE_OSN
:
1707 card
->info
.func_level
= QETH_IDX_FUNC_LEVEL_OSD
;
1714 static int qeth_idx_activate_get_answer(struct qeth_channel
*channel
,
1715 void (*idx_reply_cb
)(struct qeth_channel
*,
1716 struct qeth_cmd_buffer
*))
1718 struct qeth_cmd_buffer
*iob
;
1719 unsigned long flags
;
1721 struct qeth_card
*card
;
1723 QETH_DBF_TEXT(SETUP
, 2, "idxanswr");
1724 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1725 iob
= qeth_get_buffer(channel
);
1726 iob
->callback
= idx_reply_cb
;
1727 memcpy(&channel
->ccw
, READ_CCW
, sizeof(struct ccw1
));
1728 channel
->ccw
.count
= QETH_BUFSIZE
;
1729 channel
->ccw
.cda
= (__u32
) __pa(iob
->data
);
1731 wait_event(card
->wait_q
,
1732 atomic_cmpxchg(&channel
->irq_pending
, 0, 1) == 0);
1733 QETH_DBF_TEXT(SETUP
, 6, "noirqpnd");
1734 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
1735 rc
= ccw_device_start(channel
->ccwdev
,
1736 &channel
->ccw
, (addr_t
) iob
, 0, 0);
1737 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
1740 QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc
);
1741 QETH_DBF_TEXT_(SETUP
, 2, "2err%d", rc
);
1742 atomic_set(&channel
->irq_pending
, 0);
1743 wake_up(&card
->wait_q
);
1746 rc
= wait_event_interruptible_timeout(card
->wait_q
,
1747 channel
->state
== CH_STATE_UP
, QETH_TIMEOUT
);
1748 if (rc
== -ERESTARTSYS
)
1750 if (channel
->state
!= CH_STATE_UP
) {
1752 QETH_DBF_TEXT_(SETUP
, 2, "3err%d", rc
);
1753 qeth_clear_cmd_buffers(channel
);
1759 static int qeth_idx_activate_channel(struct qeth_channel
*channel
,
1760 void (*idx_reply_cb
)(struct qeth_channel
*,
1761 struct qeth_cmd_buffer
*))
1763 struct qeth_card
*card
;
1764 struct qeth_cmd_buffer
*iob
;
1765 unsigned long flags
;
1769 struct ccw_dev_id temp_devid
;
1771 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1773 QETH_DBF_TEXT(SETUP
, 2, "idxactch");
1775 iob
= qeth_get_buffer(channel
);
1776 iob
->callback
= idx_reply_cb
;
1777 memcpy(&channel
->ccw
, WRITE_CCW
, sizeof(struct ccw1
));
1778 channel
->ccw
.count
= IDX_ACTIVATE_SIZE
;
1779 channel
->ccw
.cda
= (__u32
) __pa(iob
->data
);
1780 if (channel
== &card
->write
) {
1781 memcpy(iob
->data
, IDX_ACTIVATE_WRITE
, IDX_ACTIVATE_SIZE
);
1782 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob
->data
),
1783 &card
->seqno
.trans_hdr
, QETH_SEQ_NO_LENGTH
);
1784 card
->seqno
.trans_hdr
++;
1786 memcpy(iob
->data
, IDX_ACTIVATE_READ
, IDX_ACTIVATE_SIZE
);
1787 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob
->data
),
1788 &card
->seqno
.trans_hdr
, QETH_SEQ_NO_LENGTH
);
1790 tmp
= ((__u8
)card
->info
.portno
) | 0x80;
1791 memcpy(QETH_IDX_ACT_PNO(iob
->data
), &tmp
, 1);
1792 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob
->data
),
1793 &card
->token
.issuer_rm_w
, QETH_MPC_TOKEN_LENGTH
);
1794 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob
->data
),
1795 &card
->info
.func_level
, sizeof(__u16
));
1796 ccw_device_get_id(CARD_DDEV(card
), &temp_devid
);
1797 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob
->data
), &temp_devid
.devno
, 2);
1798 temp
= (card
->info
.cula
<< 8) + card
->info
.unit_addr2
;
1799 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob
->data
), &temp
, 2);
1801 wait_event(card
->wait_q
,
1802 atomic_cmpxchg(&channel
->irq_pending
, 0, 1) == 0);
1803 QETH_DBF_TEXT(SETUP
, 6, "noirqpnd");
1804 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
1805 rc
= ccw_device_start(channel
->ccwdev
,
1806 &channel
->ccw
, (addr_t
) iob
, 0, 0);
1807 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
1810 QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n",
1812 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
1813 atomic_set(&channel
->irq_pending
, 0);
1814 wake_up(&card
->wait_q
);
1817 rc
= wait_event_interruptible_timeout(card
->wait_q
,
1818 channel
->state
== CH_STATE_ACTIVATING
, QETH_TIMEOUT
);
1819 if (rc
== -ERESTARTSYS
)
1821 if (channel
->state
!= CH_STATE_ACTIVATING
) {
1822 dev_warn(&channel
->ccwdev
->dev
, "The qeth device driver"
1823 " failed to recover an error on the device\n");
1824 QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n",
1825 dev_name(&channel
->ccwdev
->dev
));
1826 QETH_DBF_TEXT_(SETUP
, 2, "2err%d", -ETIME
);
1827 qeth_clear_cmd_buffers(channel
);
1830 return qeth_idx_activate_get_answer(channel
, idx_reply_cb
);
1833 static int qeth_peer_func_level(int level
)
1835 if ((level
& 0xff) == 8)
1836 return (level
& 0xff) + 0x400;
1837 if (((level
>> 8) & 3) == 1)
1838 return (level
& 0xff) + 0x200;
1842 static void qeth_idx_write_cb(struct qeth_channel
*channel
,
1843 struct qeth_cmd_buffer
*iob
)
1845 struct qeth_card
*card
;
1848 QETH_DBF_TEXT(SETUP
, 2, "idxwrcb");
1850 if (channel
->state
== CH_STATE_DOWN
) {
1851 channel
->state
= CH_STATE_ACTIVATING
;
1854 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1856 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob
->data
))) {
1857 if (QETH_IDX_ACT_CAUSE_CODE(iob
->data
) == QETH_IDX_ACT_ERR_EXCL
)
1858 dev_err(&card
->write
.ccwdev
->dev
,
1859 "The adapter is used exclusively by another "
1862 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel:"
1863 " negative reply\n",
1864 dev_name(&card
->write
.ccwdev
->dev
));
1867 memcpy(&temp
, QETH_IDX_ACT_FUNC_LEVEL(iob
->data
), 2);
1868 if ((temp
& ~0x0100) != qeth_peer_func_level(card
->info
.func_level
)) {
1869 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel: "
1870 "function level mismatch (sent: 0x%x, received: "
1871 "0x%x)\n", dev_name(&card
->write
.ccwdev
->dev
),
1872 card
->info
.func_level
, temp
);
1875 channel
->state
= CH_STATE_UP
;
1877 qeth_release_buffer(channel
, iob
);
1880 static void qeth_idx_read_cb(struct qeth_channel
*channel
,
1881 struct qeth_cmd_buffer
*iob
)
1883 struct qeth_card
*card
;
1886 QETH_DBF_TEXT(SETUP
, 2, "idxrdcb");
1887 if (channel
->state
== CH_STATE_DOWN
) {
1888 channel
->state
= CH_STATE_ACTIVATING
;
1892 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1893 if (qeth_check_idx_response(card
, iob
->data
))
1896 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob
->data
))) {
1897 switch (QETH_IDX_ACT_CAUSE_CODE(iob
->data
)) {
1898 case QETH_IDX_ACT_ERR_EXCL
:
1899 dev_err(&card
->write
.ccwdev
->dev
,
1900 "The adapter is used exclusively by another "
1903 case QETH_IDX_ACT_ERR_AUTH
:
1904 case QETH_IDX_ACT_ERR_AUTH_USER
:
1905 dev_err(&card
->read
.ccwdev
->dev
,
1906 "Setting the device online failed because of "
1907 "insufficient authorization\n");
1910 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel:"
1911 " negative reply\n",
1912 dev_name(&card
->read
.ccwdev
->dev
));
1914 QETH_CARD_TEXT_(card
, 2, "idxread%c",
1915 QETH_IDX_ACT_CAUSE_CODE(iob
->data
));
1920 * * temporary fix for microcode bug
1921 * * to revert it,replace OR by AND
1923 if ((!QETH_IDX_NO_PORTNAME_REQUIRED(iob
->data
)) ||
1924 (card
->info
.type
== QETH_CARD_TYPE_OSD
))
1925 card
->info
.portname_required
= 1;
1927 memcpy(&temp
, QETH_IDX_ACT_FUNC_LEVEL(iob
->data
), 2);
1928 if (temp
!= qeth_peer_func_level(card
->info
.func_level
)) {
1929 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel: function "
1930 "level mismatch (sent: 0x%x, received: 0x%x)\n",
1931 dev_name(&card
->read
.ccwdev
->dev
),
1932 card
->info
.func_level
, temp
);
1935 memcpy(&card
->token
.issuer_rm_r
,
1936 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob
->data
),
1937 QETH_MPC_TOKEN_LENGTH
);
1938 memcpy(&card
->info
.mcl_level
[0],
1939 QETH_IDX_REPLY_LEVEL(iob
->data
), QETH_MCL_LENGTH
);
1940 channel
->state
= CH_STATE_UP
;
1942 qeth_release_buffer(channel
, iob
);
1945 void qeth_prepare_control_data(struct qeth_card
*card
, int len
,
1946 struct qeth_cmd_buffer
*iob
)
1948 qeth_setup_ccw(&card
->write
, iob
->data
, len
);
1949 iob
->callback
= qeth_release_buffer
;
1951 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob
->data
),
1952 &card
->seqno
.trans_hdr
, QETH_SEQ_NO_LENGTH
);
1953 card
->seqno
.trans_hdr
++;
1954 memcpy(QETH_PDU_HEADER_SEQ_NO(iob
->data
),
1955 &card
->seqno
.pdu_hdr
, QETH_SEQ_NO_LENGTH
);
1956 card
->seqno
.pdu_hdr
++;
1957 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob
->data
),
1958 &card
->seqno
.pdu_hdr_ack
, QETH_SEQ_NO_LENGTH
);
1959 QETH_DBF_HEX(CTRL
, 2, iob
->data
, QETH_DBF_CTRL_LEN
);
1961 EXPORT_SYMBOL_GPL(qeth_prepare_control_data
);
1963 int qeth_send_control_data(struct qeth_card
*card
, int len
,
1964 struct qeth_cmd_buffer
*iob
,
1965 int (*reply_cb
)(struct qeth_card
*, struct qeth_reply
*,
1970 unsigned long flags
;
1971 struct qeth_reply
*reply
= NULL
;
1972 unsigned long timeout
, event_timeout
;
1973 struct qeth_ipa_cmd
*cmd
;
1975 QETH_CARD_TEXT(card
, 2, "sendctl");
1977 if (card
->read_or_write_problem
) {
1978 qeth_release_buffer(iob
->channel
, iob
);
1981 reply
= qeth_alloc_reply(card
);
1985 reply
->callback
= reply_cb
;
1986 reply
->param
= reply_param
;
1987 if (card
->state
== CARD_STATE_DOWN
)
1988 reply
->seqno
= QETH_IDX_COMMAND_SEQNO
;
1990 reply
->seqno
= card
->seqno
.ipa
++;
1991 init_waitqueue_head(&reply
->wait_q
);
1992 spin_lock_irqsave(&card
->lock
, flags
);
1993 list_add_tail(&reply
->list
, &card
->cmd_waiter_list
);
1994 spin_unlock_irqrestore(&card
->lock
, flags
);
1995 QETH_DBF_HEX(CTRL
, 2, iob
->data
, QETH_DBF_CTRL_LEN
);
1997 while (atomic_cmpxchg(&card
->write
.irq_pending
, 0, 1)) ;
1998 qeth_prepare_control_data(card
, len
, iob
);
2000 if (IS_IPA(iob
->data
))
2001 event_timeout
= QETH_IPA_TIMEOUT
;
2003 event_timeout
= QETH_TIMEOUT
;
2004 timeout
= jiffies
+ event_timeout
;
2006 QETH_CARD_TEXT(card
, 6, "noirqpnd");
2007 spin_lock_irqsave(get_ccwdev_lock(card
->write
.ccwdev
), flags
);
2008 rc
= ccw_device_start(card
->write
.ccwdev
, &card
->write
.ccw
,
2009 (addr_t
) iob
, 0, 0);
2010 spin_unlock_irqrestore(get_ccwdev_lock(card
->write
.ccwdev
), flags
);
2012 QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: "
2013 "ccw_device_start rc = %i\n",
2014 dev_name(&card
->write
.ccwdev
->dev
), rc
);
2015 QETH_CARD_TEXT_(card
, 2, " err%d", rc
);
2016 spin_lock_irqsave(&card
->lock
, flags
);
2017 list_del_init(&reply
->list
);
2018 qeth_put_reply(reply
);
2019 spin_unlock_irqrestore(&card
->lock
, flags
);
2020 qeth_release_buffer(iob
->channel
, iob
);
2021 atomic_set(&card
->write
.irq_pending
, 0);
2022 wake_up(&card
->wait_q
);
2026 /* we have only one long running ipassist, since we can ensure
2027 process context of this command we can sleep */
2028 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
2029 if ((cmd
->hdr
.command
== IPA_CMD_SETIP
) &&
2030 (cmd
->hdr
.prot_version
== QETH_PROT_IPV4
)) {
2031 if (!wait_event_timeout(reply
->wait_q
,
2032 atomic_read(&reply
->received
), event_timeout
))
2035 while (!atomic_read(&reply
->received
)) {
2036 if (time_after(jiffies
, timeout
))
2042 if (reply
->rc
== -EIO
)
2045 qeth_put_reply(reply
);
2050 spin_lock_irqsave(&reply
->card
->lock
, flags
);
2051 list_del_init(&reply
->list
);
2052 spin_unlock_irqrestore(&reply
->card
->lock
, flags
);
2053 atomic_inc(&reply
->received
);
2055 atomic_set(&card
->write
.irq_pending
, 0);
2056 qeth_release_buffer(iob
->channel
, iob
);
2057 card
->write
.buf_no
= (card
->write
.buf_no
+ 1) % QETH_CMD_BUFFER_NO
;
2059 qeth_put_reply(reply
);
2062 EXPORT_SYMBOL_GPL(qeth_send_control_data
);
2064 static int qeth_cm_enable_cb(struct qeth_card
*card
, struct qeth_reply
*reply
,
2067 struct qeth_cmd_buffer
*iob
;
2069 QETH_DBF_TEXT(SETUP
, 2, "cmenblcb");
2071 iob
= (struct qeth_cmd_buffer
*) data
;
2072 memcpy(&card
->token
.cm_filter_r
,
2073 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob
->data
),
2074 QETH_MPC_TOKEN_LENGTH
);
2075 QETH_DBF_TEXT_(SETUP
, 2, " rc%d", iob
->rc
);
2079 static int qeth_cm_enable(struct qeth_card
*card
)
2082 struct qeth_cmd_buffer
*iob
;
2084 QETH_DBF_TEXT(SETUP
, 2, "cmenable");
2086 iob
= qeth_wait_for_buffer(&card
->write
);
2087 memcpy(iob
->data
, CM_ENABLE
, CM_ENABLE_SIZE
);
2088 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob
->data
),
2089 &card
->token
.issuer_rm_r
, QETH_MPC_TOKEN_LENGTH
);
2090 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob
->data
),
2091 &card
->token
.cm_filter_w
, QETH_MPC_TOKEN_LENGTH
);
2093 rc
= qeth_send_control_data(card
, CM_ENABLE_SIZE
, iob
,
2094 qeth_cm_enable_cb
, NULL
);
2098 static int qeth_cm_setup_cb(struct qeth_card
*card
, struct qeth_reply
*reply
,
2102 struct qeth_cmd_buffer
*iob
;
2104 QETH_DBF_TEXT(SETUP
, 2, "cmsetpcb");
2106 iob
= (struct qeth_cmd_buffer
*) data
;
2107 memcpy(&card
->token
.cm_connection_r
,
2108 QETH_CM_SETUP_RESP_DEST_ADDR(iob
->data
),
2109 QETH_MPC_TOKEN_LENGTH
);
2110 QETH_DBF_TEXT_(SETUP
, 2, " rc%d", iob
->rc
);
2114 static int qeth_cm_setup(struct qeth_card
*card
)
2117 struct qeth_cmd_buffer
*iob
;
2119 QETH_DBF_TEXT(SETUP
, 2, "cmsetup");
2121 iob
= qeth_wait_for_buffer(&card
->write
);
2122 memcpy(iob
->data
, CM_SETUP
, CM_SETUP_SIZE
);
2123 memcpy(QETH_CM_SETUP_DEST_ADDR(iob
->data
),
2124 &card
->token
.issuer_rm_r
, QETH_MPC_TOKEN_LENGTH
);
2125 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob
->data
),
2126 &card
->token
.cm_connection_w
, QETH_MPC_TOKEN_LENGTH
);
2127 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob
->data
),
2128 &card
->token
.cm_filter_r
, QETH_MPC_TOKEN_LENGTH
);
2129 rc
= qeth_send_control_data(card
, CM_SETUP_SIZE
, iob
,
2130 qeth_cm_setup_cb
, NULL
);
2135 static inline int qeth_get_initial_mtu_for_card(struct qeth_card
*card
)
2137 switch (card
->info
.type
) {
2138 case QETH_CARD_TYPE_UNKNOWN
:
2140 case QETH_CARD_TYPE_IQD
:
2141 return card
->info
.max_mtu
;
2142 case QETH_CARD_TYPE_OSD
:
2143 switch (card
->info
.link_type
) {
2144 case QETH_LINK_TYPE_HSTR
:
2145 case QETH_LINK_TYPE_LANE_TR
:
2150 case QETH_CARD_TYPE_OSM
:
2151 case QETH_CARD_TYPE_OSX
:
2158 static inline int qeth_get_mtu_outof_framesize(int framesize
)
2160 switch (framesize
) {
2174 static inline int qeth_mtu_is_valid(struct qeth_card
*card
, int mtu
)
2176 switch (card
->info
.type
) {
2177 case QETH_CARD_TYPE_OSD
:
2178 case QETH_CARD_TYPE_OSM
:
2179 case QETH_CARD_TYPE_OSX
:
2180 case QETH_CARD_TYPE_IQD
:
2181 return ((mtu
>= 576) &&
2182 (mtu
<= card
->info
.max_mtu
));
2183 case QETH_CARD_TYPE_OSN
:
2184 case QETH_CARD_TYPE_UNKNOWN
:
2190 static int qeth_ulp_enable_cb(struct qeth_card
*card
, struct qeth_reply
*reply
,
2194 __u16 mtu
, framesize
;
2197 struct qeth_cmd_buffer
*iob
;
2199 QETH_DBF_TEXT(SETUP
, 2, "ulpenacb");
2201 iob
= (struct qeth_cmd_buffer
*) data
;
2202 memcpy(&card
->token
.ulp_filter_r
,
2203 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob
->data
),
2204 QETH_MPC_TOKEN_LENGTH
);
2205 if (card
->info
.type
== QETH_CARD_TYPE_IQD
) {
2206 memcpy(&framesize
, QETH_ULP_ENABLE_RESP_MAX_MTU(iob
->data
), 2);
2207 mtu
= qeth_get_mtu_outof_framesize(framesize
);
2210 QETH_DBF_TEXT_(SETUP
, 2, " rc%d", iob
->rc
);
2213 if (card
->info
.initial_mtu
&& (card
->info
.initial_mtu
!= mtu
)) {
2214 /* frame size has changed */
2216 ((card
->dev
->mtu
== card
->info
.initial_mtu
) ||
2217 (card
->dev
->mtu
> mtu
)))
2218 card
->dev
->mtu
= mtu
;
2219 qeth_free_qdio_buffers(card
);
2221 card
->info
.initial_mtu
= mtu
;
2222 card
->info
.max_mtu
= mtu
;
2223 card
->qdio
.in_buf_size
= mtu
+ 2 * PAGE_SIZE
;
2225 card
->info
.initial_mtu
= qeth_get_initial_mtu_for_card(card
);
2226 card
->info
.max_mtu
= *(__u16
*)QETH_ULP_ENABLE_RESP_MAX_MTU(
2228 card
->qdio
.in_buf_size
= QETH_IN_BUF_SIZE_DEFAULT
;
2231 memcpy(&len
, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob
->data
), 2);
2232 if (len
>= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE
) {
2234 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob
->data
), 1);
2235 card
->info
.link_type
= link_type
;
2237 card
->info
.link_type
= 0;
2238 QETH_DBF_TEXT_(SETUP
, 2, "link%d", card
->info
.link_type
);
2239 QETH_DBF_TEXT_(SETUP
, 2, " rc%d", iob
->rc
);
2243 static int qeth_ulp_enable(struct qeth_card
*card
)
2247 struct qeth_cmd_buffer
*iob
;
2249 /*FIXME: trace view callbacks*/
2250 QETH_DBF_TEXT(SETUP
, 2, "ulpenabl");
2252 iob
= qeth_wait_for_buffer(&card
->write
);
2253 memcpy(iob
->data
, ULP_ENABLE
, ULP_ENABLE_SIZE
);
2255 *(QETH_ULP_ENABLE_LINKNUM(iob
->data
)) =
2256 (__u8
) card
->info
.portno
;
2257 if (card
->options
.layer2
)
2258 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
2259 prot_type
= QETH_PROT_OSN2
;
2261 prot_type
= QETH_PROT_LAYER2
;
2263 prot_type
= QETH_PROT_TCPIP
;
2265 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob
->data
), &prot_type
, 1);
2266 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob
->data
),
2267 &card
->token
.cm_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2268 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob
->data
),
2269 &card
->token
.ulp_filter_w
, QETH_MPC_TOKEN_LENGTH
);
2270 memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob
->data
),
2271 card
->info
.portname
, 9);
2272 rc
= qeth_send_control_data(card
, ULP_ENABLE_SIZE
, iob
,
2273 qeth_ulp_enable_cb
, NULL
);
2278 static int qeth_ulp_setup_cb(struct qeth_card
*card
, struct qeth_reply
*reply
,
2281 struct qeth_cmd_buffer
*iob
;
2283 QETH_DBF_TEXT(SETUP
, 2, "ulpstpcb");
2285 iob
= (struct qeth_cmd_buffer
*) data
;
2286 memcpy(&card
->token
.ulp_connection_r
,
2287 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob
->data
),
2288 QETH_MPC_TOKEN_LENGTH
);
2289 if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob
->data
),
2291 QETH_DBF_TEXT(SETUP
, 2, "olmlimit");
2292 dev_err(&card
->gdev
->dev
, "A connection could not be "
2293 "established because of an OLM limit\n");
2296 QETH_DBF_TEXT_(SETUP
, 2, " rc%d", iob
->rc
);
2300 static int qeth_ulp_setup(struct qeth_card
*card
)
2304 struct qeth_cmd_buffer
*iob
;
2305 struct ccw_dev_id dev_id
;
2307 QETH_DBF_TEXT(SETUP
, 2, "ulpsetup");
2309 iob
= qeth_wait_for_buffer(&card
->write
);
2310 memcpy(iob
->data
, ULP_SETUP
, ULP_SETUP_SIZE
);
2312 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob
->data
),
2313 &card
->token
.cm_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2314 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob
->data
),
2315 &card
->token
.ulp_connection_w
, QETH_MPC_TOKEN_LENGTH
);
2316 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob
->data
),
2317 &card
->token
.ulp_filter_r
, QETH_MPC_TOKEN_LENGTH
);
2319 ccw_device_get_id(CARD_DDEV(card
), &dev_id
);
2320 memcpy(QETH_ULP_SETUP_CUA(iob
->data
), &dev_id
.devno
, 2);
2321 temp
= (card
->info
.cula
<< 8) + card
->info
.unit_addr2
;
2322 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob
->data
), &temp
, 2);
2323 rc
= qeth_send_control_data(card
, ULP_SETUP_SIZE
, iob
,
2324 qeth_ulp_setup_cb
, NULL
);
2328 static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q
*q
, int bidx
)
2331 struct qeth_qdio_out_buffer
*newbuf
;
2334 newbuf
= kmem_cache_zalloc(qeth_qdio_outbuf_cache
, GFP_ATOMIC
);
2339 newbuf
->buffer
= &q
->qdio_bufs
[bidx
];
2340 skb_queue_head_init(&newbuf
->skb_list
);
2341 lockdep_set_class(&newbuf
->skb_list
.lock
, &qdio_out_skb_queue_key
);
2344 newbuf
->next_pending
= q
->bufs
[bidx
];
2345 atomic_set(&newbuf
->state
, QETH_QDIO_BUF_EMPTY
);
2346 q
->bufs
[bidx
] = newbuf
;
2348 q
->bufstates
[bidx
].user
= newbuf
;
2349 QETH_CARD_TEXT_(q
->card
, 2, "nbs%d", bidx
);
2350 QETH_CARD_TEXT_(q
->card
, 2, "%lx", (long) newbuf
);
2351 QETH_CARD_TEXT_(q
->card
, 2, "%lx",
2352 (long) newbuf
->next_pending
);
2359 static int qeth_alloc_qdio_buffers(struct qeth_card
*card
)
2363 QETH_DBF_TEXT(SETUP
, 2, "allcqdbf");
2365 if (atomic_cmpxchg(&card
->qdio
.state
, QETH_QDIO_UNINITIALIZED
,
2366 QETH_QDIO_ALLOCATED
) != QETH_QDIO_UNINITIALIZED
)
2369 card
->qdio
.in_q
= kzalloc(sizeof(struct qeth_qdio_q
),
2371 if (!card
->qdio
.in_q
)
2373 QETH_DBF_TEXT(SETUP
, 2, "inq");
2374 QETH_DBF_HEX(SETUP
, 2, &card
->qdio
.in_q
, sizeof(void *));
2375 memset(card
->qdio
.in_q
, 0, sizeof(struct qeth_qdio_q
));
2376 /* give inbound qeth_qdio_buffers their qdio_buffers */
2377 for (i
= 0; i
< QDIO_MAX_BUFFERS_PER_Q
; ++i
) {
2378 card
->qdio
.in_q
->bufs
[i
].buffer
=
2379 &card
->qdio
.in_q
->qdio_bufs
[i
];
2380 card
->qdio
.in_q
->bufs
[i
].rx_skb
= NULL
;
2382 /* inbound buffer pool */
2383 if (qeth_alloc_buffer_pool(card
))
2388 kzalloc(card
->qdio
.no_out_queues
*
2389 sizeof(struct qeth_qdio_out_q
*), GFP_KERNEL
);
2390 if (!card
->qdio
.out_qs
)
2392 for (i
= 0; i
< card
->qdio
.no_out_queues
; ++i
) {
2393 card
->qdio
.out_qs
[i
] = kzalloc(sizeof(struct qeth_qdio_out_q
),
2395 if (!card
->qdio
.out_qs
[i
])
2397 QETH_DBF_TEXT_(SETUP
, 2, "outq %i", i
);
2398 QETH_DBF_HEX(SETUP
, 2, &card
->qdio
.out_qs
[i
], sizeof(void *));
2399 card
->qdio
.out_qs
[i
]->queue_no
= i
;
2400 /* give outbound qeth_qdio_buffers their qdio_buffers */
2401 for (j
= 0; j
< QDIO_MAX_BUFFERS_PER_Q
; ++j
) {
2402 WARN_ON(card
->qdio
.out_qs
[i
]->bufs
[j
] != NULL
);
2403 if (qeth_init_qdio_out_buf(card
->qdio
.out_qs
[i
], j
))
2404 goto out_freeoutqbufs
;
2409 if (qeth_alloc_cq(card
))
2417 kmem_cache_free(qeth_qdio_outbuf_cache
,
2418 card
->qdio
.out_qs
[i
]->bufs
[j
]);
2419 card
->qdio
.out_qs
[i
]->bufs
[j
] = NULL
;
2423 kfree(card
->qdio
.out_qs
[--i
]);
2424 qeth_clear_outq_buffers(card
->qdio
.out_qs
[i
], 1);
2426 kfree(card
->qdio
.out_qs
);
2427 card
->qdio
.out_qs
= NULL
;
2429 qeth_free_buffer_pool(card
);
2431 kfree(card
->qdio
.in_q
);
2432 card
->qdio
.in_q
= NULL
;
2434 atomic_set(&card
->qdio
.state
, QETH_QDIO_UNINITIALIZED
);
2438 static void qeth_create_qib_param_field(struct qeth_card
*card
,
2442 param_field
[0] = _ascebc
['P'];
2443 param_field
[1] = _ascebc
['C'];
2444 param_field
[2] = _ascebc
['I'];
2445 param_field
[3] = _ascebc
['T'];
2446 *((unsigned int *) (¶m_field
[4])) = QETH_PCI_THRESHOLD_A(card
);
2447 *((unsigned int *) (¶m_field
[8])) = QETH_PCI_THRESHOLD_B(card
);
2448 *((unsigned int *) (¶m_field
[12])) = QETH_PCI_TIMER_VALUE(card
);
2451 static void qeth_create_qib_param_field_blkt(struct qeth_card
*card
,
2454 param_field
[16] = _ascebc
['B'];
2455 param_field
[17] = _ascebc
['L'];
2456 param_field
[18] = _ascebc
['K'];
2457 param_field
[19] = _ascebc
['T'];
2458 *((unsigned int *) (¶m_field
[20])) = card
->info
.blkt
.time_total
;
2459 *((unsigned int *) (¶m_field
[24])) = card
->info
.blkt
.inter_packet
;
2460 *((unsigned int *) (¶m_field
[28])) =
2461 card
->info
.blkt
.inter_packet_jumbo
;
2464 static int qeth_qdio_activate(struct qeth_card
*card
)
2466 QETH_DBF_TEXT(SETUP
, 3, "qdioact");
2467 return qdio_activate(CARD_DDEV(card
));
2470 static int qeth_dm_act(struct qeth_card
*card
)
2473 struct qeth_cmd_buffer
*iob
;
2475 QETH_DBF_TEXT(SETUP
, 2, "dmact");
2477 iob
= qeth_wait_for_buffer(&card
->write
);
2478 memcpy(iob
->data
, DM_ACT
, DM_ACT_SIZE
);
2480 memcpy(QETH_DM_ACT_DEST_ADDR(iob
->data
),
2481 &card
->token
.cm_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2482 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob
->data
),
2483 &card
->token
.ulp_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2484 rc
= qeth_send_control_data(card
, DM_ACT_SIZE
, iob
, NULL
, NULL
);
2488 static int qeth_mpc_initialize(struct qeth_card
*card
)
2492 QETH_DBF_TEXT(SETUP
, 2, "mpcinit");
2494 rc
= qeth_issue_next_read(card
);
2496 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
2499 rc
= qeth_cm_enable(card
);
2501 QETH_DBF_TEXT_(SETUP
, 2, "2err%d", rc
);
2504 rc
= qeth_cm_setup(card
);
2506 QETH_DBF_TEXT_(SETUP
, 2, "3err%d", rc
);
2509 rc
= qeth_ulp_enable(card
);
2511 QETH_DBF_TEXT_(SETUP
, 2, "4err%d", rc
);
2514 rc
= qeth_ulp_setup(card
);
2516 QETH_DBF_TEXT_(SETUP
, 2, "5err%d", rc
);
2519 rc
= qeth_alloc_qdio_buffers(card
);
2521 QETH_DBF_TEXT_(SETUP
, 2, "5err%d", rc
);
2524 rc
= qeth_qdio_establish(card
);
2526 QETH_DBF_TEXT_(SETUP
, 2, "6err%d", rc
);
2527 qeth_free_qdio_buffers(card
);
2530 rc
= qeth_qdio_activate(card
);
2532 QETH_DBF_TEXT_(SETUP
, 2, "7err%d", rc
);
2535 rc
= qeth_dm_act(card
);
2537 QETH_DBF_TEXT_(SETUP
, 2, "8err%d", rc
);
2543 qeth_qdio_clear_card(card
, card
->info
.type
!= QETH_CARD_TYPE_IQD
);
2547 static void qeth_print_status_with_portname(struct qeth_card
*card
)
2552 sprintf(dbf_text
, "%s", card
->info
.portname
+ 1);
2553 for (i
= 0; i
< 8; i
++)
2555 (char) _ebcasc
[(__u8
) dbf_text
[i
]];
2557 dev_info(&card
->gdev
->dev
, "Device is a%s card%s%s%s\n"
2558 "with link type %s (portname: %s)\n",
2559 qeth_get_cardname(card
),
2560 (card
->info
.mcl_level
[0]) ? " (level: " : "",
2561 (card
->info
.mcl_level
[0]) ? card
->info
.mcl_level
: "",
2562 (card
->info
.mcl_level
[0]) ? ")" : "",
2563 qeth_get_cardname_short(card
),
2568 static void qeth_print_status_no_portname(struct qeth_card
*card
)
2570 if (card
->info
.portname
[0])
2571 dev_info(&card
->gdev
->dev
, "Device is a%s "
2572 "card%s%s%s\nwith link type %s "
2573 "(no portname needed by interface).\n",
2574 qeth_get_cardname(card
),
2575 (card
->info
.mcl_level
[0]) ? " (level: " : "",
2576 (card
->info
.mcl_level
[0]) ? card
->info
.mcl_level
: "",
2577 (card
->info
.mcl_level
[0]) ? ")" : "",
2578 qeth_get_cardname_short(card
));
2580 dev_info(&card
->gdev
->dev
, "Device is a%s "
2581 "card%s%s%s\nwith link type %s.\n",
2582 qeth_get_cardname(card
),
2583 (card
->info
.mcl_level
[0]) ? " (level: " : "",
2584 (card
->info
.mcl_level
[0]) ? card
->info
.mcl_level
: "",
2585 (card
->info
.mcl_level
[0]) ? ")" : "",
2586 qeth_get_cardname_short(card
));
2589 void qeth_print_status_message(struct qeth_card
*card
)
2591 switch (card
->info
.type
) {
2592 case QETH_CARD_TYPE_OSD
:
2593 case QETH_CARD_TYPE_OSM
:
2594 case QETH_CARD_TYPE_OSX
:
2595 /* VM will use a non-zero first character
2596 * to indicate a HiperSockets like reporting
2597 * of the level OSA sets the first character to zero
2599 if (!card
->info
.mcl_level
[0]) {
2600 sprintf(card
->info
.mcl_level
, "%02x%02x",
2601 card
->info
.mcl_level
[2],
2602 card
->info
.mcl_level
[3]);
2604 card
->info
.mcl_level
[QETH_MCL_LENGTH
] = 0;
2608 case QETH_CARD_TYPE_IQD
:
2609 if ((card
->info
.guestlan
) ||
2610 (card
->info
.mcl_level
[0] & 0x80)) {
2611 card
->info
.mcl_level
[0] = (char) _ebcasc
[(__u8
)
2612 card
->info
.mcl_level
[0]];
2613 card
->info
.mcl_level
[1] = (char) _ebcasc
[(__u8
)
2614 card
->info
.mcl_level
[1]];
2615 card
->info
.mcl_level
[2] = (char) _ebcasc
[(__u8
)
2616 card
->info
.mcl_level
[2]];
2617 card
->info
.mcl_level
[3] = (char) _ebcasc
[(__u8
)
2618 card
->info
.mcl_level
[3]];
2619 card
->info
.mcl_level
[QETH_MCL_LENGTH
] = 0;
2623 memset(&card
->info
.mcl_level
[0], 0, QETH_MCL_LENGTH
+ 1);
2625 if (card
->info
.portname_required
)
2626 qeth_print_status_with_portname(card
);
2628 qeth_print_status_no_portname(card
);
2630 EXPORT_SYMBOL_GPL(qeth_print_status_message
);
2632 static void qeth_initialize_working_pool_list(struct qeth_card
*card
)
2634 struct qeth_buffer_pool_entry
*entry
;
2636 QETH_CARD_TEXT(card
, 5, "inwrklst");
2638 list_for_each_entry(entry
,
2639 &card
->qdio
.init_pool
.entry_list
, init_list
) {
2640 qeth_put_buffer_pool_entry(card
, entry
);
2644 static inline struct qeth_buffer_pool_entry
*qeth_find_free_buffer_pool_entry(
2645 struct qeth_card
*card
)
2647 struct list_head
*plh
;
2648 struct qeth_buffer_pool_entry
*entry
;
2652 if (list_empty(&card
->qdio
.in_buf_pool
.entry_list
))
2655 list_for_each(plh
, &card
->qdio
.in_buf_pool
.entry_list
) {
2656 entry
= list_entry(plh
, struct qeth_buffer_pool_entry
, list
);
2658 for (i
= 0; i
< QETH_MAX_BUFFER_ELEMENTS(card
); ++i
) {
2659 if (page_count(virt_to_page(entry
->elements
[i
])) > 1) {
2665 list_del_init(&entry
->list
);
2670 /* no free buffer in pool so take first one and swap pages */
2671 entry
= list_entry(card
->qdio
.in_buf_pool
.entry_list
.next
,
2672 struct qeth_buffer_pool_entry
, list
);
2673 for (i
= 0; i
< QETH_MAX_BUFFER_ELEMENTS(card
); ++i
) {
2674 if (page_count(virt_to_page(entry
->elements
[i
])) > 1) {
2675 page
= alloc_page(GFP_ATOMIC
);
2679 free_page((unsigned long)entry
->elements
[i
]);
2680 entry
->elements
[i
] = page_address(page
);
2681 if (card
->options
.performance_stats
)
2682 card
->perf_stats
.sg_alloc_page_rx
++;
2686 list_del_init(&entry
->list
);
2690 static int qeth_init_input_buffer(struct qeth_card
*card
,
2691 struct qeth_qdio_buffer
*buf
)
2693 struct qeth_buffer_pool_entry
*pool_entry
;
2696 if ((card
->options
.cq
== QETH_CQ_ENABLED
) && (!buf
->rx_skb
)) {
2697 buf
->rx_skb
= dev_alloc_skb(QETH_RX_PULL_LEN
+ ETH_HLEN
);
2702 pool_entry
= qeth_find_free_buffer_pool_entry(card
);
2707 * since the buffer is accessed only from the input_tasklet
2708 * there shouldn't be a need to synchronize; also, since we use
2709 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2713 buf
->pool_entry
= pool_entry
;
2714 for (i
= 0; i
< QETH_MAX_BUFFER_ELEMENTS(card
); ++i
) {
2715 buf
->buffer
->element
[i
].length
= PAGE_SIZE
;
2716 buf
->buffer
->element
[i
].addr
= pool_entry
->elements
[i
];
2717 if (i
== QETH_MAX_BUFFER_ELEMENTS(card
) - 1)
2718 buf
->buffer
->element
[i
].eflags
= SBAL_EFLAGS_LAST_ENTRY
;
2720 buf
->buffer
->element
[i
].eflags
= 0;
2721 buf
->buffer
->element
[i
].sflags
= 0;
2726 int qeth_init_qdio_queues(struct qeth_card
*card
)
2731 QETH_DBF_TEXT(SETUP
, 2, "initqdqs");
2734 memset(card
->qdio
.in_q
->qdio_bufs
, 0,
2735 QDIO_MAX_BUFFERS_PER_Q
* sizeof(struct qdio_buffer
));
2736 qeth_initialize_working_pool_list(card
);
2737 /*give only as many buffers to hardware as we have buffer pool entries*/
2738 for (i
= 0; i
< card
->qdio
.in_buf_pool
.buf_count
- 1; ++i
)
2739 qeth_init_input_buffer(card
, &card
->qdio
.in_q
->bufs
[i
]);
2740 card
->qdio
.in_q
->next_buf_to_init
=
2741 card
->qdio
.in_buf_pool
.buf_count
- 1;
2742 rc
= do_QDIO(CARD_DDEV(card
), QDIO_FLAG_SYNC_INPUT
, 0, 0,
2743 card
->qdio
.in_buf_pool
.buf_count
- 1);
2745 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
2750 rc
= qeth_cq_init(card
);
2755 /* outbound queue */
2756 for (i
= 0; i
< card
->qdio
.no_out_queues
; ++i
) {
2757 memset(card
->qdio
.out_qs
[i
]->qdio_bufs
, 0,
2758 QDIO_MAX_BUFFERS_PER_Q
* sizeof(struct qdio_buffer
));
2759 for (j
= 0; j
< QDIO_MAX_BUFFERS_PER_Q
; ++j
) {
2760 qeth_clear_output_buffer(card
->qdio
.out_qs
[i
],
2761 card
->qdio
.out_qs
[i
]->bufs
[j
],
2762 QETH_QDIO_BUF_EMPTY
);
2764 card
->qdio
.out_qs
[i
]->card
= card
;
2765 card
->qdio
.out_qs
[i
]->next_buf_to_fill
= 0;
2766 card
->qdio
.out_qs
[i
]->do_pack
= 0;
2767 atomic_set(&card
->qdio
.out_qs
[i
]->used_buffers
, 0);
2768 atomic_set(&card
->qdio
.out_qs
[i
]->set_pci_flags_count
, 0);
2769 atomic_set(&card
->qdio
.out_qs
[i
]->state
,
2770 QETH_OUT_Q_UNLOCKED
);
2774 EXPORT_SYMBOL_GPL(qeth_init_qdio_queues
);
2776 static inline __u8
qeth_get_ipa_adp_type(enum qeth_link_types link_type
)
2778 switch (link_type
) {
2779 case QETH_LINK_TYPE_HSTR
:
2786 static void qeth_fill_ipacmd_header(struct qeth_card
*card
,
2787 struct qeth_ipa_cmd
*cmd
, __u8 command
,
2788 enum qeth_prot_versions prot
)
2790 memset(cmd
, 0, sizeof(struct qeth_ipa_cmd
));
2791 cmd
->hdr
.command
= command
;
2792 cmd
->hdr
.initiator
= IPA_CMD_INITIATOR_HOST
;
2793 cmd
->hdr
.seqno
= card
->seqno
.ipa
;
2794 cmd
->hdr
.adapter_type
= qeth_get_ipa_adp_type(card
->info
.link_type
);
2795 cmd
->hdr
.rel_adapter_no
= (__u8
) card
->info
.portno
;
2796 if (card
->options
.layer2
)
2797 cmd
->hdr
.prim_version_no
= 2;
2799 cmd
->hdr
.prim_version_no
= 1;
2800 cmd
->hdr
.param_count
= 1;
2801 cmd
->hdr
.prot_version
= prot
;
2802 cmd
->hdr
.ipa_supported
= 0;
2803 cmd
->hdr
.ipa_enabled
= 0;
2806 struct qeth_cmd_buffer
*qeth_get_ipacmd_buffer(struct qeth_card
*card
,
2807 enum qeth_ipa_cmds ipacmd
, enum qeth_prot_versions prot
)
2809 struct qeth_cmd_buffer
*iob
;
2810 struct qeth_ipa_cmd
*cmd
;
2812 iob
= qeth_wait_for_buffer(&card
->write
);
2813 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
2814 qeth_fill_ipacmd_header(card
, cmd
, ipacmd
, prot
);
2818 EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer
);
2820 void qeth_prepare_ipa_cmd(struct qeth_card
*card
, struct qeth_cmd_buffer
*iob
,
2823 memcpy(iob
->data
, IPA_PDU_HEADER
, IPA_PDU_HEADER_SIZE
);
2824 memcpy(QETH_IPA_CMD_PROT_TYPE(iob
->data
), &prot_type
, 1);
2825 memcpy(QETH_IPA_CMD_DEST_ADDR(iob
->data
),
2826 &card
->token
.ulp_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2828 EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd
);
2830 int qeth_send_ipa_cmd(struct qeth_card
*card
, struct qeth_cmd_buffer
*iob
,
2831 int (*reply_cb
)(struct qeth_card
*, struct qeth_reply
*,
2838 QETH_CARD_TEXT(card
, 4, "sendipa");
2840 if (card
->options
.layer2
)
2841 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
2842 prot_type
= QETH_PROT_OSN2
;
2844 prot_type
= QETH_PROT_LAYER2
;
2846 prot_type
= QETH_PROT_TCPIP
;
2847 qeth_prepare_ipa_cmd(card
, iob
, prot_type
);
2848 rc
= qeth_send_control_data(card
, IPA_CMD_LENGTH
,
2849 iob
, reply_cb
, reply_param
);
2851 qeth_clear_ipacmd_list(card
);
2852 qeth_schedule_recovery(card
);
2856 EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd
);
2858 int qeth_send_startlan(struct qeth_card
*card
)
2861 struct qeth_cmd_buffer
*iob
;
2863 QETH_DBF_TEXT(SETUP
, 2, "strtlan");
2865 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_STARTLAN
, 0);
2866 rc
= qeth_send_ipa_cmd(card
, iob
, NULL
, NULL
);
2869 EXPORT_SYMBOL_GPL(qeth_send_startlan
);
2871 int qeth_default_setadapterparms_cb(struct qeth_card
*card
,
2872 struct qeth_reply
*reply
, unsigned long data
)
2874 struct qeth_ipa_cmd
*cmd
;
2876 QETH_CARD_TEXT(card
, 4, "defadpcb");
2878 cmd
= (struct qeth_ipa_cmd
*) data
;
2879 if (cmd
->hdr
.return_code
== 0)
2880 cmd
->hdr
.return_code
=
2881 cmd
->data
.setadapterparms
.hdr
.return_code
;
2884 EXPORT_SYMBOL_GPL(qeth_default_setadapterparms_cb
);
2886 static int qeth_query_setadapterparms_cb(struct qeth_card
*card
,
2887 struct qeth_reply
*reply
, unsigned long data
)
2889 struct qeth_ipa_cmd
*cmd
;
2891 QETH_CARD_TEXT(card
, 3, "quyadpcb");
2893 cmd
= (struct qeth_ipa_cmd
*) data
;
2894 if (cmd
->data
.setadapterparms
.data
.query_cmds_supp
.lan_type
& 0x7f) {
2895 card
->info
.link_type
=
2896 cmd
->data
.setadapterparms
.data
.query_cmds_supp
.lan_type
;
2897 QETH_DBF_TEXT_(SETUP
, 2, "lnk %d", card
->info
.link_type
);
2899 card
->options
.adp
.supported_funcs
=
2900 cmd
->data
.setadapterparms
.data
.query_cmds_supp
.supported_cmds
;
2901 return qeth_default_setadapterparms_cb(card
, reply
, (unsigned long)cmd
);
2904 struct qeth_cmd_buffer
*qeth_get_adapter_cmd(struct qeth_card
*card
,
2905 __u32 command
, __u32 cmdlen
)
2907 struct qeth_cmd_buffer
*iob
;
2908 struct qeth_ipa_cmd
*cmd
;
2910 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_SETADAPTERPARMS
,
2912 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
2913 cmd
->data
.setadapterparms
.hdr
.cmdlength
= cmdlen
;
2914 cmd
->data
.setadapterparms
.hdr
.command_code
= command
;
2915 cmd
->data
.setadapterparms
.hdr
.used_total
= 1;
2916 cmd
->data
.setadapterparms
.hdr
.seq_no
= 1;
2920 EXPORT_SYMBOL_GPL(qeth_get_adapter_cmd
);
2922 int qeth_query_setadapterparms(struct qeth_card
*card
)
2925 struct qeth_cmd_buffer
*iob
;
2927 QETH_CARD_TEXT(card
, 3, "queryadp");
2928 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_QUERY_COMMANDS_SUPPORTED
,
2929 sizeof(struct qeth_ipacmd_setadpparms
));
2930 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_query_setadapterparms_cb
, NULL
);
2933 EXPORT_SYMBOL_GPL(qeth_query_setadapterparms
);
2935 static int qeth_query_ipassists_cb(struct qeth_card
*card
,
2936 struct qeth_reply
*reply
, unsigned long data
)
2938 struct qeth_ipa_cmd
*cmd
;
2940 QETH_DBF_TEXT(SETUP
, 2, "qipasscb");
2942 cmd
= (struct qeth_ipa_cmd
*) data
;
2944 switch (cmd
->hdr
.return_code
) {
2945 case IPA_RC_NOTSUPP
:
2946 case IPA_RC_L2_UNSUPPORTED_CMD
:
2947 QETH_DBF_TEXT(SETUP
, 2, "ipaunsup");
2948 card
->options
.ipa4
.supported_funcs
|= IPA_SETADAPTERPARMS
;
2949 card
->options
.ipa6
.supported_funcs
|= IPA_SETADAPTERPARMS
;
2952 if (cmd
->hdr
.return_code
) {
2953 QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Unhandled "
2955 dev_name(&card
->gdev
->dev
),
2956 cmd
->hdr
.return_code
);
2961 if (cmd
->hdr
.prot_version
== QETH_PROT_IPV4
) {
2962 card
->options
.ipa4
.supported_funcs
= cmd
->hdr
.ipa_supported
;
2963 card
->options
.ipa4
.enabled_funcs
= cmd
->hdr
.ipa_enabled
;
2964 } else if (cmd
->hdr
.prot_version
== QETH_PROT_IPV6
) {
2965 card
->options
.ipa6
.supported_funcs
= cmd
->hdr
.ipa_supported
;
2966 card
->options
.ipa6
.enabled_funcs
= cmd
->hdr
.ipa_enabled
;
2968 QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Flawed LIC detected"
2969 "\n", dev_name(&card
->gdev
->dev
));
2973 int qeth_query_ipassists(struct qeth_card
*card
, enum qeth_prot_versions prot
)
2976 struct qeth_cmd_buffer
*iob
;
2978 QETH_DBF_TEXT_(SETUP
, 2, "qipassi%i", prot
);
2979 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_QIPASSIST
, prot
);
2980 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_query_ipassists_cb
, NULL
);
2983 EXPORT_SYMBOL_GPL(qeth_query_ipassists
);
2985 static int qeth_query_setdiagass_cb(struct qeth_card
*card
,
2986 struct qeth_reply
*reply
, unsigned long data
)
2988 struct qeth_ipa_cmd
*cmd
;
2991 cmd
= (struct qeth_ipa_cmd
*)data
;
2992 rc
= cmd
->hdr
.return_code
;
2994 QETH_CARD_TEXT_(card
, 2, "diagq:%x", rc
);
2996 card
->info
.diagass_support
= cmd
->data
.diagass
.ext
;
3000 static int qeth_query_setdiagass(struct qeth_card
*card
)
3002 struct qeth_cmd_buffer
*iob
;
3003 struct qeth_ipa_cmd
*cmd
;
3005 QETH_DBF_TEXT(SETUP
, 2, "qdiagass");
3006 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_SET_DIAG_ASS
, 0);
3007 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
3008 cmd
->data
.diagass
.subcmd_len
= 16;
3009 cmd
->data
.diagass
.subcmd
= QETH_DIAGS_CMD_QUERY
;
3010 return qeth_send_ipa_cmd(card
, iob
, qeth_query_setdiagass_cb
, NULL
);
3013 static void qeth_get_trap_id(struct qeth_card
*card
, struct qeth_trap_id
*tid
)
3015 unsigned long info
= get_zeroed_page(GFP_KERNEL
);
3016 struct sysinfo_2_2_2
*info222
= (struct sysinfo_2_2_2
*)info
;
3017 struct sysinfo_3_2_2
*info322
= (struct sysinfo_3_2_2
*)info
;
3018 struct ccw_dev_id ccwid
;
3021 tid
->chpid
= card
->info
.chpid
;
3022 ccw_device_get_id(CARD_RDEV(card
), &ccwid
);
3023 tid
->ssid
= ccwid
.ssid
;
3024 tid
->devno
= ccwid
.devno
;
3027 level
= stsi(NULL
, 0, 0, 0);
3028 if ((level
>= 2) && (stsi(info222
, 2, 2, 2) == 0))
3029 tid
->lparnr
= info222
->lpar_number
;
3030 if ((level
>= 3) && (stsi(info322
, 3, 2, 2) == 0)) {
3031 EBCASC(info322
->vm
[0].name
, sizeof(info322
->vm
[0].name
));
3032 memcpy(tid
->vmname
, info322
->vm
[0].name
, sizeof(tid
->vmname
));
3038 static int qeth_hw_trap_cb(struct qeth_card
*card
,
3039 struct qeth_reply
*reply
, unsigned long data
)
3041 struct qeth_ipa_cmd
*cmd
;
3044 cmd
= (struct qeth_ipa_cmd
*)data
;
3045 rc
= cmd
->hdr
.return_code
;
3047 QETH_CARD_TEXT_(card
, 2, "trapc:%x", rc
);
3051 int qeth_hw_trap(struct qeth_card
*card
, enum qeth_diags_trap_action action
)
3053 struct qeth_cmd_buffer
*iob
;
3054 struct qeth_ipa_cmd
*cmd
;
3056 QETH_DBF_TEXT(SETUP
, 2, "diagtrap");
3057 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_SET_DIAG_ASS
, 0);
3058 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
3059 cmd
->data
.diagass
.subcmd_len
= 80;
3060 cmd
->data
.diagass
.subcmd
= QETH_DIAGS_CMD_TRAP
;
3061 cmd
->data
.diagass
.type
= 1;
3062 cmd
->data
.diagass
.action
= action
;
3064 case QETH_DIAGS_TRAP_ARM
:
3065 cmd
->data
.diagass
.options
= 0x0003;
3066 cmd
->data
.diagass
.ext
= 0x00010000 +
3067 sizeof(struct qeth_trap_id
);
3068 qeth_get_trap_id(card
,
3069 (struct qeth_trap_id
*)cmd
->data
.diagass
.cdata
);
3071 case QETH_DIAGS_TRAP_DISARM
:
3072 cmd
->data
.diagass
.options
= 0x0001;
3074 case QETH_DIAGS_TRAP_CAPTURE
:
3077 return qeth_send_ipa_cmd(card
, iob
, qeth_hw_trap_cb
, NULL
);
3079 EXPORT_SYMBOL_GPL(qeth_hw_trap
);
3081 int qeth_check_qdio_errors(struct qeth_card
*card
, struct qdio_buffer
*buf
,
3082 unsigned int qdio_error
, const char *dbftext
)
3085 QETH_CARD_TEXT(card
, 2, dbftext
);
3086 QETH_CARD_TEXT_(card
, 2, " F15=%02X",
3087 buf
->element
[15].sflags
);
3088 QETH_CARD_TEXT_(card
, 2, " F14=%02X",
3089 buf
->element
[14].sflags
);
3090 QETH_CARD_TEXT_(card
, 2, " qerr=%X", qdio_error
);
3091 if ((buf
->element
[15].sflags
) == 0x12) {
3092 card
->stats
.rx_dropped
++;
3099 EXPORT_SYMBOL_GPL(qeth_check_qdio_errors
);
3101 void qeth_buffer_reclaim_work(struct work_struct
*work
)
3103 struct qeth_card
*card
= container_of(work
, struct qeth_card
,
3104 buffer_reclaim_work
.work
);
3106 QETH_CARD_TEXT_(card
, 2, "brw:%x", card
->reclaim_index
);
3107 qeth_queue_input_buffer(card
, card
->reclaim_index
);
3110 void qeth_queue_input_buffer(struct qeth_card
*card
, int index
)
3112 struct qeth_qdio_q
*queue
= card
->qdio
.in_q
;
3113 struct list_head
*lh
;
3119 count
= (index
< queue
->next_buf_to_init
)?
3120 card
->qdio
.in_buf_pool
.buf_count
-
3121 (queue
->next_buf_to_init
- index
) :
3122 card
->qdio
.in_buf_pool
.buf_count
-
3123 (queue
->next_buf_to_init
+ QDIO_MAX_BUFFERS_PER_Q
- index
);
3124 /* only requeue at a certain threshold to avoid SIGAs */
3125 if (count
>= QETH_IN_BUF_REQUEUE_THRESHOLD(card
)) {
3126 for (i
= queue
->next_buf_to_init
;
3127 i
< queue
->next_buf_to_init
+ count
; ++i
) {
3128 if (qeth_init_input_buffer(card
,
3129 &queue
->bufs
[i
% QDIO_MAX_BUFFERS_PER_Q
])) {
3136 if (newcount
< count
) {
3137 /* we are in memory shortage so we switch back to
3138 traditional skb allocation and drop packages */
3139 atomic_set(&card
->force_alloc_skb
, 3);
3142 atomic_add_unless(&card
->force_alloc_skb
, -1, 0);
3147 list_for_each(lh
, &card
->qdio
.in_buf_pool
.entry_list
)
3149 if (i
== card
->qdio
.in_buf_pool
.buf_count
) {
3150 QETH_CARD_TEXT(card
, 2, "qsarbw");
3151 card
->reclaim_index
= index
;
3152 schedule_delayed_work(
3153 &card
->buffer_reclaim_work
,
3154 QETH_RECLAIM_WORK_TIME
);
3160 * according to old code it should be avoided to requeue all
3161 * 128 buffers in order to benefit from PCI avoidance.
3162 * this function keeps at least one buffer (the buffer at
3163 * 'index') un-requeued -> this buffer is the first buffer that
3164 * will be requeued the next time
3166 if (card
->options
.performance_stats
) {
3167 card
->perf_stats
.inbound_do_qdio_cnt
++;
3168 card
->perf_stats
.inbound_do_qdio_start_time
=
3171 rc
= do_QDIO(CARD_DDEV(card
), QDIO_FLAG_SYNC_INPUT
, 0,
3172 queue
->next_buf_to_init
, count
);
3173 if (card
->options
.performance_stats
)
3174 card
->perf_stats
.inbound_do_qdio_time
+=
3176 card
->perf_stats
.inbound_do_qdio_start_time
;
3178 QETH_CARD_TEXT(card
, 2, "qinberr");
3180 queue
->next_buf_to_init
= (queue
->next_buf_to_init
+ count
) %
3181 QDIO_MAX_BUFFERS_PER_Q
;
3184 EXPORT_SYMBOL_GPL(qeth_queue_input_buffer
);
3186 static int qeth_handle_send_error(struct qeth_card
*card
,
3187 struct qeth_qdio_out_buffer
*buffer
, unsigned int qdio_err
)
3189 int sbalf15
= buffer
->buffer
->element
[15].sflags
;
3191 QETH_CARD_TEXT(card
, 6, "hdsnderr");
3192 if (card
->info
.type
== QETH_CARD_TYPE_IQD
) {
3199 qeth_check_qdio_errors(card
, buffer
->buffer
, qdio_err
, "qouterr");
3202 return QETH_SEND_ERROR_NONE
;
3204 if ((sbalf15
>= 15) && (sbalf15
<= 31))
3205 return QETH_SEND_ERROR_RETRY
;
3207 QETH_CARD_TEXT(card
, 1, "lnkfail");
3208 QETH_CARD_TEXT_(card
, 1, "%04x %02x",
3209 (u16
)qdio_err
, (u8
)sbalf15
);
3210 return QETH_SEND_ERROR_LINK_FAILURE
;
3214 * Switched to packing state if the number of used buffers on a queue
3215 * reaches a certain limit.
3217 static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q
*queue
)
3219 if (!queue
->do_pack
) {
3220 if (atomic_read(&queue
->used_buffers
)
3221 >= QETH_HIGH_WATERMARK_PACK
){
3222 /* switch non-PACKING -> PACKING */
3223 QETH_CARD_TEXT(queue
->card
, 6, "np->pack");
3224 if (queue
->card
->options
.performance_stats
)
3225 queue
->card
->perf_stats
.sc_dp_p
++;
3232 * Switches from packing to non-packing mode. If there is a packing
3233 * buffer on the queue this buffer will be prepared to be flushed.
3234 * In that case 1 is returned to inform the caller. If no buffer
3235 * has to be flushed, zero is returned.
3237 static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q
*queue
)
3239 struct qeth_qdio_out_buffer
*buffer
;
3240 int flush_count
= 0;
3242 if (queue
->do_pack
) {
3243 if (atomic_read(&queue
->used_buffers
)
3244 <= QETH_LOW_WATERMARK_PACK
) {
3245 /* switch PACKING -> non-PACKING */
3246 QETH_CARD_TEXT(queue
->card
, 6, "pack->np");
3247 if (queue
->card
->options
.performance_stats
)
3248 queue
->card
->perf_stats
.sc_p_dp
++;
3250 /* flush packing buffers */
3251 buffer
= queue
->bufs
[queue
->next_buf_to_fill
];
3252 if ((atomic_read(&buffer
->state
) ==
3253 QETH_QDIO_BUF_EMPTY
) &&
3254 (buffer
->next_element_to_fill
> 0)) {
3255 atomic_set(&buffer
->state
,
3256 QETH_QDIO_BUF_PRIMED
);
3258 queue
->next_buf_to_fill
=
3259 (queue
->next_buf_to_fill
+ 1) %
3260 QDIO_MAX_BUFFERS_PER_Q
;
3269 * Called to flush a packing buffer if no more pci flags are on the queue.
3270 * Checks if there is a packing buffer and prepares it to be flushed.
3271 * In that case returns 1, otherwise zero.
3273 static int qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q
*queue
)
3275 struct qeth_qdio_out_buffer
*buffer
;
3277 buffer
= queue
->bufs
[queue
->next_buf_to_fill
];
3278 if ((atomic_read(&buffer
->state
) == QETH_QDIO_BUF_EMPTY
) &&
3279 (buffer
->next_element_to_fill
> 0)) {
3280 /* it's a packing buffer */
3281 atomic_set(&buffer
->state
, QETH_QDIO_BUF_PRIMED
);
3282 queue
->next_buf_to_fill
=
3283 (queue
->next_buf_to_fill
+ 1) % QDIO_MAX_BUFFERS_PER_Q
;
3289 static void qeth_flush_buffers(struct qeth_qdio_out_q
*queue
, int index
,
3292 struct qeth_qdio_out_buffer
*buf
;
3295 unsigned int qdio_flags
;
3297 for (i
= index
; i
< index
+ count
; ++i
) {
3298 int bidx
= i
% QDIO_MAX_BUFFERS_PER_Q
;
3299 buf
= queue
->bufs
[bidx
];
3300 buf
->buffer
->element
[buf
->next_element_to_fill
- 1].eflags
|=
3301 SBAL_EFLAGS_LAST_ENTRY
;
3303 if (queue
->bufstates
)
3304 queue
->bufstates
[bidx
].user
= buf
;
3306 if (queue
->card
->info
.type
== QETH_CARD_TYPE_IQD
)
3309 if (!queue
->do_pack
) {
3310 if ((atomic_read(&queue
->used_buffers
) >=
3311 (QETH_HIGH_WATERMARK_PACK
-
3312 QETH_WATERMARK_PACK_FUZZ
)) &&
3313 !atomic_read(&queue
->set_pci_flags_count
)) {
3314 /* it's likely that we'll go to packing
3316 atomic_inc(&queue
->set_pci_flags_count
);
3317 buf
->buffer
->element
[0].sflags
|= SBAL_SFLAGS0_PCI_REQ
;
3320 if (!atomic_read(&queue
->set_pci_flags_count
)) {
3322 * there's no outstanding PCI any more, so we
3323 * have to request a PCI to be sure the the PCI
3324 * will wake at some time in the future then we
3325 * can flush packed buffers that might still be
3326 * hanging around, which can happen if no
3327 * further send was requested by the stack
3329 atomic_inc(&queue
->set_pci_flags_count
);
3330 buf
->buffer
->element
[0].sflags
|= SBAL_SFLAGS0_PCI_REQ
;
3335 queue
->card
->dev
->trans_start
= jiffies
;
3336 if (queue
->card
->options
.performance_stats
) {
3337 queue
->card
->perf_stats
.outbound_do_qdio_cnt
++;
3338 queue
->card
->perf_stats
.outbound_do_qdio_start_time
=
3341 qdio_flags
= QDIO_FLAG_SYNC_OUTPUT
;
3342 if (atomic_read(&queue
->set_pci_flags_count
))
3343 qdio_flags
|= QDIO_FLAG_PCI_OUT
;
3344 rc
= do_QDIO(CARD_DDEV(queue
->card
), qdio_flags
,
3345 queue
->queue_no
, index
, count
);
3346 if (queue
->card
->options
.performance_stats
)
3347 queue
->card
->perf_stats
.outbound_do_qdio_time
+=
3349 queue
->card
->perf_stats
.outbound_do_qdio_start_time
;
3350 atomic_add(count
, &queue
->used_buffers
);
3352 queue
->card
->stats
.tx_errors
+= count
;
3353 /* ignore temporary SIGA errors without busy condition */
3356 QETH_CARD_TEXT(queue
->card
, 2, "flushbuf");
3357 QETH_CARD_TEXT_(queue
->card
, 2, " q%d", queue
->queue_no
);
3358 QETH_CARD_TEXT_(queue
->card
, 2, " idx%d", index
);
3359 QETH_CARD_TEXT_(queue
->card
, 2, " c%d", count
);
3360 QETH_CARD_TEXT_(queue
->card
, 2, " err%d", rc
);
3362 /* this must not happen under normal circumstances. if it
3363 * happens something is really wrong -> recover */
3364 qeth_schedule_recovery(queue
->card
);
3367 if (queue
->card
->options
.performance_stats
)
3368 queue
->card
->perf_stats
.bufs_sent
+= count
;
3371 static void qeth_check_outbound_queue(struct qeth_qdio_out_q
*queue
)
3375 int q_was_packing
= 0;
3378 * check if weed have to switch to non-packing mode or if
3379 * we have to get a pci flag out on the queue
3381 if ((atomic_read(&queue
->used_buffers
) <= QETH_LOW_WATERMARK_PACK
) ||
3382 !atomic_read(&queue
->set_pci_flags_count
)) {
3383 if (atomic_xchg(&queue
->state
, QETH_OUT_Q_LOCKED_FLUSH
) ==
3384 QETH_OUT_Q_UNLOCKED
) {
3386 * If we get in here, there was no action in
3387 * do_send_packet. So, we check if there is a
3388 * packing buffer to be flushed here.
3390 netif_stop_queue(queue
->card
->dev
);
3391 index
= queue
->next_buf_to_fill
;
3392 q_was_packing
= queue
->do_pack
;
3393 /* queue->do_pack may change */
3395 flush_cnt
+= qeth_switch_to_nonpacking_if_needed(queue
);
3397 !atomic_read(&queue
->set_pci_flags_count
))
3399 qeth_flush_buffers_on_no_pci(queue
);
3400 if (queue
->card
->options
.performance_stats
&&
3402 queue
->card
->perf_stats
.bufs_sent_pack
+=
3405 qeth_flush_buffers(queue
, index
, flush_cnt
);
3406 atomic_set(&queue
->state
, QETH_OUT_Q_UNLOCKED
);
3411 void qeth_qdio_start_poll(struct ccw_device
*ccwdev
, int queue
,
3412 unsigned long card_ptr
)
3414 struct qeth_card
*card
= (struct qeth_card
*)card_ptr
;
3416 if (card
->dev
&& (card
->dev
->flags
& IFF_UP
))
3417 napi_schedule(&card
->napi
);
3419 EXPORT_SYMBOL_GPL(qeth_qdio_start_poll
);
3421 int qeth_configure_cq(struct qeth_card
*card
, enum qeth_cq cq
)
3425 if (card
->options
.cq
== QETH_CQ_NOTAVAILABLE
) {
3429 if (card
->options
.cq
== cq
) {
3434 if (card
->state
!= CARD_STATE_DOWN
&&
3435 card
->state
!= CARD_STATE_RECOVER
) {
3440 qeth_free_qdio_buffers(card
);
3441 card
->options
.cq
= cq
;
3448 EXPORT_SYMBOL_GPL(qeth_configure_cq
);
3451 static void qeth_qdio_cq_handler(struct qeth_card
*card
,
3452 unsigned int qdio_err
,
3453 unsigned int queue
, int first_element
, int count
) {
3454 struct qeth_qdio_q
*cq
= card
->qdio
.c_q
;
3458 if (!qeth_is_cq(card
, queue
))
3461 QETH_CARD_TEXT_(card
, 5, "qcqhe%d", first_element
);
3462 QETH_CARD_TEXT_(card
, 5, "qcqhc%d", count
);
3463 QETH_CARD_TEXT_(card
, 5, "qcqherr%d", qdio_err
);
3466 netif_stop_queue(card
->dev
);
3467 qeth_schedule_recovery(card
);
3471 if (card
->options
.performance_stats
) {
3472 card
->perf_stats
.cq_cnt
++;
3473 card
->perf_stats
.cq_start_time
= qeth_get_micros();
3476 for (i
= first_element
; i
< first_element
+ count
; ++i
) {
3477 int bidx
= i
% QDIO_MAX_BUFFERS_PER_Q
;
3478 struct qdio_buffer
*buffer
= &cq
->qdio_bufs
[bidx
];
3482 while (buffer
->element
[e
].addr
) {
3483 unsigned long phys_aob_addr
;
3485 phys_aob_addr
= (unsigned long) buffer
->element
[e
].addr
;
3486 qeth_qdio_handle_aob(card
, phys_aob_addr
);
3487 buffer
->element
[e
].addr
= NULL
;
3488 buffer
->element
[e
].eflags
= 0;
3489 buffer
->element
[e
].sflags
= 0;
3490 buffer
->element
[e
].length
= 0;
3495 buffer
->element
[15].eflags
= 0;
3496 buffer
->element
[15].sflags
= 0;
3498 rc
= do_QDIO(CARD_DDEV(card
), QDIO_FLAG_SYNC_INPUT
, queue
,
3499 card
->qdio
.c_q
->next_buf_to_init
,
3502 dev_warn(&card
->gdev
->dev
,
3503 "QDIO reported an error, rc=%i\n", rc
);
3504 QETH_CARD_TEXT(card
, 2, "qcqherr");
3506 card
->qdio
.c_q
->next_buf_to_init
= (card
->qdio
.c_q
->next_buf_to_init
3507 + count
) % QDIO_MAX_BUFFERS_PER_Q
;
3509 netif_wake_queue(card
->dev
);
3511 if (card
->options
.performance_stats
) {
3512 int delta_t
= qeth_get_micros();
3513 delta_t
-= card
->perf_stats
.cq_start_time
;
3514 card
->perf_stats
.cq_time
+= delta_t
;
3520 void qeth_qdio_input_handler(struct ccw_device
*ccwdev
, unsigned int qdio_err
,
3521 unsigned int queue
, int first_elem
, int count
,
3522 unsigned long card_ptr
)
3524 struct qeth_card
*card
= (struct qeth_card
*)card_ptr
;
3526 QETH_CARD_TEXT_(card
, 2, "qihq%d", queue
);
3527 QETH_CARD_TEXT_(card
, 2, "qiec%d", qdio_err
);
3529 if (qeth_is_cq(card
, queue
))
3530 qeth_qdio_cq_handler(card
, qdio_err
, queue
, first_elem
, count
);
3532 qeth_schedule_recovery(card
);
3536 EXPORT_SYMBOL_GPL(qeth_qdio_input_handler
);
3538 void qeth_qdio_output_handler(struct ccw_device
*ccwdev
,
3539 unsigned int qdio_error
, int __queue
, int first_element
,
3540 int count
, unsigned long card_ptr
)
3542 struct qeth_card
*card
= (struct qeth_card
*) card_ptr
;
3543 struct qeth_qdio_out_q
*queue
= card
->qdio
.out_qs
[__queue
];
3544 struct qeth_qdio_out_buffer
*buffer
;
3547 QETH_CARD_TEXT(card
, 6, "qdouhdl");
3548 if (qdio_error
& QDIO_ERROR_FATAL
) {
3549 QETH_CARD_TEXT(card
, 2, "achkcond");
3550 netif_stop_queue(card
->dev
);
3551 qeth_schedule_recovery(card
);
3554 if (card
->options
.performance_stats
) {
3555 card
->perf_stats
.outbound_handler_cnt
++;
3556 card
->perf_stats
.outbound_handler_start_time
=
3559 for (i
= first_element
; i
< (first_element
+ count
); ++i
) {
3560 int bidx
= i
% QDIO_MAX_BUFFERS_PER_Q
;
3561 buffer
= queue
->bufs
[bidx
];
3562 qeth_handle_send_error(card
, buffer
, qdio_error
);
3564 if (queue
->bufstates
&&
3565 (queue
->bufstates
[bidx
].flags
&
3566 QDIO_OUTBUF_STATE_FLAG_PENDING
) != 0) {
3567 WARN_ON_ONCE(card
->options
.cq
!= QETH_CQ_ENABLED
);
3569 if (atomic_cmpxchg(&buffer
->state
,
3570 QETH_QDIO_BUF_PRIMED
,
3571 QETH_QDIO_BUF_PENDING
) ==
3572 QETH_QDIO_BUF_PRIMED
) {
3573 qeth_notify_skbs(queue
, buffer
,
3576 buffer
->aob
= queue
->bufstates
[bidx
].aob
;
3577 QETH_CARD_TEXT_(queue
->card
, 5, "pel%d", bidx
);
3578 QETH_CARD_TEXT(queue
->card
, 5, "aob");
3579 QETH_CARD_TEXT_(queue
->card
, 5, "%lx",
3580 virt_to_phys(buffer
->aob
));
3581 if (qeth_init_qdio_out_buf(queue
, bidx
)) {
3582 QETH_CARD_TEXT(card
, 2, "outofbuf");
3583 qeth_schedule_recovery(card
);
3586 if (card
->options
.cq
== QETH_CQ_ENABLED
) {
3587 enum iucv_tx_notify n
;
3589 n
= qeth_compute_cq_notification(
3590 buffer
->buffer
->element
[15].sflags
, 0);
3591 qeth_notify_skbs(queue
, buffer
, n
);
3594 qeth_clear_output_buffer(queue
, buffer
,
3595 QETH_QDIO_BUF_EMPTY
);
3597 qeth_cleanup_handled_pending(queue
, bidx
, 0);
3599 atomic_sub(count
, &queue
->used_buffers
);
3600 /* check if we need to do something on this outbound queue */
3601 if (card
->info
.type
!= QETH_CARD_TYPE_IQD
)
3602 qeth_check_outbound_queue(queue
);
3604 netif_wake_queue(queue
->card
->dev
);
3605 if (card
->options
.performance_stats
)
3606 card
->perf_stats
.outbound_handler_time
+= qeth_get_micros() -
3607 card
->perf_stats
.outbound_handler_start_time
;
3609 EXPORT_SYMBOL_GPL(qeth_qdio_output_handler
);
3611 int qeth_get_priority_queue(struct qeth_card
*card
, struct sk_buff
*skb
,
3612 int ipv
, int cast_type
)
3614 if (!ipv
&& (card
->info
.type
== QETH_CARD_TYPE_OSD
||
3615 card
->info
.type
== QETH_CARD_TYPE_OSX
))
3616 return card
->qdio
.default_out_queue
;
3617 switch (card
->qdio
.no_out_queues
) {
3619 if (cast_type
&& card
->info
.is_multicast_different
)
3620 return card
->info
.is_multicast_different
&
3621 (card
->qdio
.no_out_queues
- 1);
3622 if (card
->qdio
.do_prio_queueing
&& (ipv
== 4)) {
3623 const u8 tos
= ip_hdr(skb
)->tos
;
3625 if (card
->qdio
.do_prio_queueing
==
3626 QETH_PRIO_Q_ING_TOS
) {
3627 if (tos
& IP_TOS_NOTIMPORTANT
)
3629 if (tos
& IP_TOS_HIGHRELIABILITY
)
3631 if (tos
& IP_TOS_HIGHTHROUGHPUT
)
3633 if (tos
& IP_TOS_LOWDELAY
)
3636 if (card
->qdio
.do_prio_queueing
==
3637 QETH_PRIO_Q_ING_PREC
)
3638 return 3 - (tos
>> 6);
3639 } else if (card
->qdio
.do_prio_queueing
&& (ipv
== 6)) {
3642 return card
->qdio
.default_out_queue
;
3643 case 1: /* fallthrough for single-out-queue 1920-device */
3645 return card
->qdio
.default_out_queue
;
3648 EXPORT_SYMBOL_GPL(qeth_get_priority_queue
);
3650 int qeth_get_elements_no(struct qeth_card
*card
, void *hdr
,
3651 struct sk_buff
*skb
, int elems
)
3653 int dlen
= skb
->len
- skb
->data_len
;
3654 int elements_needed
= PFN_UP((unsigned long)skb
->data
+ dlen
- 1) -
3655 PFN_DOWN((unsigned long)skb
->data
);
3657 elements_needed
+= skb_shinfo(skb
)->nr_frags
;
3658 if ((elements_needed
+ elems
) > QETH_MAX_BUFFER_ELEMENTS(card
)) {
3659 QETH_DBF_MESSAGE(2, "Invalid size of IP packet "
3660 "(Number=%d / Length=%d). Discarded.\n",
3661 (elements_needed
+elems
), skb
->len
);
3664 return elements_needed
;
3666 EXPORT_SYMBOL_GPL(qeth_get_elements_no
);
3668 int qeth_hdr_chk_and_bounce(struct sk_buff
*skb
, int len
)
3670 int hroom
, inpage
, rest
;
3672 if (((unsigned long)skb
->data
& PAGE_MASK
) !=
3673 (((unsigned long)skb
->data
+ len
- 1) & PAGE_MASK
)) {
3674 hroom
= skb_headroom(skb
);
3675 inpage
= PAGE_SIZE
- ((unsigned long) skb
->data
% PAGE_SIZE
);
3676 rest
= len
- inpage
;
3679 memmove(skb
->data
- rest
, skb
->data
, skb
->len
- skb
->data_len
);
3681 QETH_DBF_MESSAGE(2, "skb bounce len: %d rest: %d\n", len
, rest
);
3685 EXPORT_SYMBOL_GPL(qeth_hdr_chk_and_bounce
);
3687 static inline void __qeth_fill_buffer(struct sk_buff
*skb
,
3688 struct qdio_buffer
*buffer
, int is_tso
, int *next_element_to_fill
,
3691 int length
= skb
->len
- skb
->data_len
;
3696 struct skb_frag_struct
*frag
;
3698 element
= *next_element_to_fill
;
3700 first_lap
= (is_tso
== 0 ? 1 : 0);
3703 data
= skb
->data
+ offset
;
3708 while (length
> 0) {
3709 /* length_here is the remaining amount of data in this page */
3710 length_here
= PAGE_SIZE
- ((unsigned long) data
% PAGE_SIZE
);
3711 if (length
< length_here
)
3712 length_here
= length
;
3714 buffer
->element
[element
].addr
= data
;
3715 buffer
->element
[element
].length
= length_here
;
3716 length
-= length_here
;
3719 if (skb_shinfo(skb
)->nr_frags
)
3720 buffer
->element
[element
].eflags
=
3721 SBAL_EFLAGS_FIRST_FRAG
;
3723 buffer
->element
[element
].eflags
= 0;
3725 buffer
->element
[element
].eflags
=
3726 SBAL_EFLAGS_MIDDLE_FRAG
;
3729 buffer
->element
[element
].eflags
=
3730 SBAL_EFLAGS_FIRST_FRAG
;
3732 buffer
->element
[element
].eflags
=
3733 SBAL_EFLAGS_MIDDLE_FRAG
;
3735 data
+= length_here
;
3740 for (cnt
= 0; cnt
< skb_shinfo(skb
)->nr_frags
; cnt
++) {
3741 frag
= &skb_shinfo(skb
)->frags
[cnt
];
3742 buffer
->element
[element
].addr
= (char *)
3743 page_to_phys(skb_frag_page(frag
))
3744 + frag
->page_offset
;
3745 buffer
->element
[element
].length
= frag
->size
;
3746 buffer
->element
[element
].eflags
= SBAL_EFLAGS_MIDDLE_FRAG
;
3750 if (buffer
->element
[element
- 1].eflags
)
3751 buffer
->element
[element
- 1].eflags
= SBAL_EFLAGS_LAST_FRAG
;
3752 *next_element_to_fill
= element
;
3755 static inline int qeth_fill_buffer(struct qeth_qdio_out_q
*queue
,
3756 struct qeth_qdio_out_buffer
*buf
, struct sk_buff
*skb
,
3757 struct qeth_hdr
*hdr
, int offset
, int hd_len
)
3759 struct qdio_buffer
*buffer
;
3760 int flush_cnt
= 0, hdr_len
, large_send
= 0;
3762 buffer
= buf
->buffer
;
3763 atomic_inc(&skb
->users
);
3764 skb_queue_tail(&buf
->skb_list
, skb
);
3766 /*check first on TSO ....*/
3767 if (hdr
->hdr
.l3
.id
== QETH_HEADER_TYPE_TSO
) {
3768 int element
= buf
->next_element_to_fill
;
3770 hdr_len
= sizeof(struct qeth_hdr_tso
) +
3771 ((struct qeth_hdr_tso
*)hdr
)->ext
.dg_hdr_len
;
3772 /*fill first buffer entry only with header information */
3773 buffer
->element
[element
].addr
= skb
->data
;
3774 buffer
->element
[element
].length
= hdr_len
;
3775 buffer
->element
[element
].eflags
= SBAL_EFLAGS_FIRST_FRAG
;
3776 buf
->next_element_to_fill
++;
3777 skb
->data
+= hdr_len
;
3778 skb
->len
-= hdr_len
;
3783 int element
= buf
->next_element_to_fill
;
3784 buffer
->element
[element
].addr
= hdr
;
3785 buffer
->element
[element
].length
= sizeof(struct qeth_hdr
) +
3787 buffer
->element
[element
].eflags
= SBAL_EFLAGS_FIRST_FRAG
;
3788 buf
->is_header
[element
] = 1;
3789 buf
->next_element_to_fill
++;
3792 __qeth_fill_buffer(skb
, buffer
, large_send
,
3793 (int *)&buf
->next_element_to_fill
, offset
);
3795 if (!queue
->do_pack
) {
3796 QETH_CARD_TEXT(queue
->card
, 6, "fillbfnp");
3797 /* set state to PRIMED -> will be flushed */
3798 atomic_set(&buf
->state
, QETH_QDIO_BUF_PRIMED
);
3801 QETH_CARD_TEXT(queue
->card
, 6, "fillbfpa");
3802 if (queue
->card
->options
.performance_stats
)
3803 queue
->card
->perf_stats
.skbs_sent_pack
++;
3804 if (buf
->next_element_to_fill
>=
3805 QETH_MAX_BUFFER_ELEMENTS(queue
->card
)) {
3807 * packed buffer if full -> set state PRIMED
3808 * -> will be flushed
3810 atomic_set(&buf
->state
, QETH_QDIO_BUF_PRIMED
);
3817 int qeth_do_send_packet_fast(struct qeth_card
*card
,
3818 struct qeth_qdio_out_q
*queue
, struct sk_buff
*skb
,
3819 struct qeth_hdr
*hdr
, int elements_needed
,
3820 int offset
, int hd_len
)
3822 struct qeth_qdio_out_buffer
*buffer
;
3825 /* spin until we get the queue ... */
3826 while (atomic_cmpxchg(&queue
->state
, QETH_OUT_Q_UNLOCKED
,
3827 QETH_OUT_Q_LOCKED
) != QETH_OUT_Q_UNLOCKED
);
3828 /* ... now we've got the queue */
3829 index
= queue
->next_buf_to_fill
;
3830 buffer
= queue
->bufs
[queue
->next_buf_to_fill
];
3832 * check if buffer is empty to make sure that we do not 'overtake'
3833 * ourselves and try to fill a buffer that is already primed
3835 if (atomic_read(&buffer
->state
) != QETH_QDIO_BUF_EMPTY
)
3837 queue
->next_buf_to_fill
= (queue
->next_buf_to_fill
+ 1) %
3838 QDIO_MAX_BUFFERS_PER_Q
;
3839 atomic_set(&queue
->state
, QETH_OUT_Q_UNLOCKED
);
3840 qeth_fill_buffer(queue
, buffer
, skb
, hdr
, offset
, hd_len
);
3841 qeth_flush_buffers(queue
, index
, 1);
3844 atomic_set(&queue
->state
, QETH_OUT_Q_UNLOCKED
);
3847 EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast
);
3849 int qeth_do_send_packet(struct qeth_card
*card
, struct qeth_qdio_out_q
*queue
,
3850 struct sk_buff
*skb
, struct qeth_hdr
*hdr
,
3851 int elements_needed
)
3853 struct qeth_qdio_out_buffer
*buffer
;
3855 int flush_count
= 0;
3860 /* spin until we get the queue ... */
3861 while (atomic_cmpxchg(&queue
->state
, QETH_OUT_Q_UNLOCKED
,
3862 QETH_OUT_Q_LOCKED
) != QETH_OUT_Q_UNLOCKED
);
3863 start_index
= queue
->next_buf_to_fill
;
3864 buffer
= queue
->bufs
[queue
->next_buf_to_fill
];
3866 * check if buffer is empty to make sure that we do not 'overtake'
3867 * ourselves and try to fill a buffer that is already primed
3869 if (atomic_read(&buffer
->state
) != QETH_QDIO_BUF_EMPTY
) {
3870 atomic_set(&queue
->state
, QETH_OUT_Q_UNLOCKED
);
3873 /* check if we need to switch packing state of this queue */
3874 qeth_switch_to_packing_if_needed(queue
);
3875 if (queue
->do_pack
) {
3877 /* does packet fit in current buffer? */
3878 if ((QETH_MAX_BUFFER_ELEMENTS(card
) -
3879 buffer
->next_element_to_fill
) < elements_needed
) {
3880 /* ... no -> set state PRIMED */
3881 atomic_set(&buffer
->state
, QETH_QDIO_BUF_PRIMED
);
3883 queue
->next_buf_to_fill
=
3884 (queue
->next_buf_to_fill
+ 1) %
3885 QDIO_MAX_BUFFERS_PER_Q
;
3886 buffer
= queue
->bufs
[queue
->next_buf_to_fill
];
3887 /* we did a step forward, so check buffer state
3889 if (atomic_read(&buffer
->state
) !=
3890 QETH_QDIO_BUF_EMPTY
) {
3891 qeth_flush_buffers(queue
, start_index
,
3893 atomic_set(&queue
->state
,
3894 QETH_OUT_Q_UNLOCKED
);
3899 tmp
= qeth_fill_buffer(queue
, buffer
, skb
, hdr
, -1, 0);
3900 queue
->next_buf_to_fill
= (queue
->next_buf_to_fill
+ tmp
) %
3901 QDIO_MAX_BUFFERS_PER_Q
;
3904 qeth_flush_buffers(queue
, start_index
, flush_count
);
3905 else if (!atomic_read(&queue
->set_pci_flags_count
))
3906 atomic_xchg(&queue
->state
, QETH_OUT_Q_LOCKED_FLUSH
);
3908 * queue->state will go from LOCKED -> UNLOCKED or from
3909 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
3910 * (switch packing state or flush buffer to get another pci flag out).
3911 * In that case we will enter this loop
3913 while (atomic_dec_return(&queue
->state
)) {
3915 start_index
= queue
->next_buf_to_fill
;
3916 /* check if we can go back to non-packing state */
3917 flush_count
+= qeth_switch_to_nonpacking_if_needed(queue
);
3919 * check if we need to flush a packing buffer to get a pci
3920 * flag out on the queue
3922 if (!flush_count
&& !atomic_read(&queue
->set_pci_flags_count
))
3923 flush_count
+= qeth_flush_buffers_on_no_pci(queue
);
3925 qeth_flush_buffers(queue
, start_index
, flush_count
);
3927 /* at this point the queue is UNLOCKED again */
3928 if (queue
->card
->options
.performance_stats
&& do_pack
)
3929 queue
->card
->perf_stats
.bufs_sent_pack
+= flush_count
;
3933 EXPORT_SYMBOL_GPL(qeth_do_send_packet
);
3935 static int qeth_setadp_promisc_mode_cb(struct qeth_card
*card
,
3936 struct qeth_reply
*reply
, unsigned long data
)
3938 struct qeth_ipa_cmd
*cmd
;
3939 struct qeth_ipacmd_setadpparms
*setparms
;
3941 QETH_CARD_TEXT(card
, 4, "prmadpcb");
3943 cmd
= (struct qeth_ipa_cmd
*) data
;
3944 setparms
= &(cmd
->data
.setadapterparms
);
3946 qeth_default_setadapterparms_cb(card
, reply
, (unsigned long)cmd
);
3947 if (cmd
->hdr
.return_code
) {
3948 QETH_CARD_TEXT_(card
, 4, "prmrc%2.2x", cmd
->hdr
.return_code
);
3949 setparms
->data
.mode
= SET_PROMISC_MODE_OFF
;
3951 card
->info
.promisc_mode
= setparms
->data
.mode
;
3955 void qeth_setadp_promisc_mode(struct qeth_card
*card
)
3957 enum qeth_ipa_promisc_modes mode
;
3958 struct net_device
*dev
= card
->dev
;
3959 struct qeth_cmd_buffer
*iob
;
3960 struct qeth_ipa_cmd
*cmd
;
3962 QETH_CARD_TEXT(card
, 4, "setprom");
3964 if (((dev
->flags
& IFF_PROMISC
) &&
3965 (card
->info
.promisc_mode
== SET_PROMISC_MODE_ON
)) ||
3966 (!(dev
->flags
& IFF_PROMISC
) &&
3967 (card
->info
.promisc_mode
== SET_PROMISC_MODE_OFF
)))
3969 mode
= SET_PROMISC_MODE_OFF
;
3970 if (dev
->flags
& IFF_PROMISC
)
3971 mode
= SET_PROMISC_MODE_ON
;
3972 QETH_CARD_TEXT_(card
, 4, "mode:%x", mode
);
3974 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_SET_PROMISC_MODE
,
3975 sizeof(struct qeth_ipacmd_setadpparms
));
3976 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+ IPA_PDU_HEADER_SIZE
);
3977 cmd
->data
.setadapterparms
.data
.mode
= mode
;
3978 qeth_send_ipa_cmd(card
, iob
, qeth_setadp_promisc_mode_cb
, NULL
);
3980 EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode
);
3982 int qeth_change_mtu(struct net_device
*dev
, int new_mtu
)
3984 struct qeth_card
*card
;
3987 card
= dev
->ml_priv
;
3989 QETH_CARD_TEXT(card
, 4, "chgmtu");
3990 sprintf(dbf_text
, "%8x", new_mtu
);
3991 QETH_CARD_TEXT(card
, 4, dbf_text
);
3995 if (new_mtu
> 65535)
3997 if ((!qeth_is_supported(card
, IPA_IP_FRAGMENTATION
)) &&
3998 (!qeth_mtu_is_valid(card
, new_mtu
)))
4003 EXPORT_SYMBOL_GPL(qeth_change_mtu
);
4005 struct net_device_stats
*qeth_get_stats(struct net_device
*dev
)
4007 struct qeth_card
*card
;
4009 card
= dev
->ml_priv
;
4011 QETH_CARD_TEXT(card
, 5, "getstat");
4013 return &card
->stats
;
4015 EXPORT_SYMBOL_GPL(qeth_get_stats
);
4017 static int qeth_setadpparms_change_macaddr_cb(struct qeth_card
*card
,
4018 struct qeth_reply
*reply
, unsigned long data
)
4020 struct qeth_ipa_cmd
*cmd
;
4022 QETH_CARD_TEXT(card
, 4, "chgmaccb");
4024 cmd
= (struct qeth_ipa_cmd
*) data
;
4025 if (!card
->options
.layer2
||
4026 !(card
->info
.mac_bits
& QETH_LAYER2_MAC_READ
)) {
4027 memcpy(card
->dev
->dev_addr
,
4028 &cmd
->data
.setadapterparms
.data
.change_addr
.addr
,
4030 card
->info
.mac_bits
|= QETH_LAYER2_MAC_READ
;
4032 qeth_default_setadapterparms_cb(card
, reply
, (unsigned long) cmd
);
4036 int qeth_setadpparms_change_macaddr(struct qeth_card
*card
)
4039 struct qeth_cmd_buffer
*iob
;
4040 struct qeth_ipa_cmd
*cmd
;
4042 QETH_CARD_TEXT(card
, 4, "chgmac");
4044 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_ALTER_MAC_ADDRESS
,
4045 sizeof(struct qeth_ipacmd_setadpparms
));
4046 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
4047 cmd
->data
.setadapterparms
.data
.change_addr
.cmd
= CHANGE_ADDR_READ_MAC
;
4048 cmd
->data
.setadapterparms
.data
.change_addr
.addr_size
= OSA_ADDR_LEN
;
4049 memcpy(&cmd
->data
.setadapterparms
.data
.change_addr
.addr
,
4050 card
->dev
->dev_addr
, OSA_ADDR_LEN
);
4051 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_setadpparms_change_macaddr_cb
,
4055 EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr
);
4057 static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card
*card
,
4058 struct qeth_reply
*reply
, unsigned long data
)
4060 struct qeth_ipa_cmd
*cmd
;
4061 struct qeth_set_access_ctrl
*access_ctrl_req
;
4063 QETH_CARD_TEXT(card
, 4, "setaccb");
4065 cmd
= (struct qeth_ipa_cmd
*) data
;
4066 access_ctrl_req
= &cmd
->data
.setadapterparms
.data
.set_access_ctrl
;
4067 QETH_DBF_TEXT_(SETUP
, 2, "setaccb");
4068 QETH_DBF_TEXT_(SETUP
, 2, "%s", card
->gdev
->dev
.kobj
.name
);
4069 QETH_DBF_TEXT_(SETUP
, 2, "rc=%d",
4070 cmd
->data
.setadapterparms
.hdr
.return_code
);
4071 switch (cmd
->data
.setadapterparms
.hdr
.return_code
) {
4072 case SET_ACCESS_CTRL_RC_SUCCESS
:
4073 case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED
:
4074 case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED
:
4076 card
->options
.isolation
= access_ctrl_req
->subcmd_code
;
4077 if (card
->options
.isolation
== ISOLATION_MODE_NONE
) {
4078 dev_info(&card
->gdev
->dev
,
4079 "QDIO data connection isolation is deactivated\n");
4081 dev_info(&card
->gdev
->dev
,
4082 "QDIO data connection isolation is activated\n");
4084 QETH_DBF_MESSAGE(3, "OK:SET_ACCESS_CTRL(%s, %d)==%d\n",
4085 card
->gdev
->dev
.kobj
.name
,
4086 access_ctrl_req
->subcmd_code
,
4087 cmd
->data
.setadapterparms
.hdr
.return_code
);
4090 case SET_ACCESS_CTRL_RC_NOT_SUPPORTED
:
4092 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%s,%d)==%d\n",
4093 card
->gdev
->dev
.kobj
.name
,
4094 access_ctrl_req
->subcmd_code
,
4095 cmd
->data
.setadapterparms
.hdr
.return_code
);
4096 dev_err(&card
->gdev
->dev
, "Adapter does not "
4097 "support QDIO data connection isolation\n");
4099 /* ensure isolation mode is "none" */
4100 card
->options
.isolation
= ISOLATION_MODE_NONE
;
4103 case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER
:
4105 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d\n",
4106 card
->gdev
->dev
.kobj
.name
,
4107 access_ctrl_req
->subcmd_code
,
4108 cmd
->data
.setadapterparms
.hdr
.return_code
);
4109 dev_err(&card
->gdev
->dev
,
4110 "Adapter is dedicated. "
4111 "QDIO data connection isolation not supported\n");
4113 /* ensure isolation mode is "none" */
4114 card
->options
.isolation
= ISOLATION_MODE_NONE
;
4117 case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF
:
4119 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d\n",
4120 card
->gdev
->dev
.kobj
.name
,
4121 access_ctrl_req
->subcmd_code
,
4122 cmd
->data
.setadapterparms
.hdr
.return_code
);
4123 dev_err(&card
->gdev
->dev
,
4124 "TSO does not permit QDIO data connection isolation\n");
4126 /* ensure isolation mode is "none" */
4127 card
->options
.isolation
= ISOLATION_MODE_NONE
;
4132 /* this should never happen */
4133 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d"
4135 card
->gdev
->dev
.kobj
.name
,
4136 access_ctrl_req
->subcmd_code
,
4137 cmd
->data
.setadapterparms
.hdr
.return_code
);
4139 /* ensure isolation mode is "none" */
4140 card
->options
.isolation
= ISOLATION_MODE_NONE
;
4144 qeth_default_setadapterparms_cb(card
, reply
, (unsigned long) cmd
);
4148 static int qeth_setadpparms_set_access_ctrl(struct qeth_card
*card
,
4149 enum qeth_ipa_isolation_modes isolation
)
4152 struct qeth_cmd_buffer
*iob
;
4153 struct qeth_ipa_cmd
*cmd
;
4154 struct qeth_set_access_ctrl
*access_ctrl_req
;
4156 QETH_CARD_TEXT(card
, 4, "setacctl");
4158 QETH_DBF_TEXT_(SETUP
, 2, "setacctl");
4159 QETH_DBF_TEXT_(SETUP
, 2, "%s", card
->gdev
->dev
.kobj
.name
);
4161 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_SET_ACCESS_CONTROL
,
4162 sizeof(struct qeth_ipacmd_setadpparms_hdr
) +
4163 sizeof(struct qeth_set_access_ctrl
));
4164 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
4165 access_ctrl_req
= &cmd
->data
.setadapterparms
.data
.set_access_ctrl
;
4166 access_ctrl_req
->subcmd_code
= isolation
;
4168 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_setadpparms_set_access_ctrl_cb
,
4170 QETH_DBF_TEXT_(SETUP
, 2, "rc=%d", rc
);
4174 int qeth_set_access_ctrl_online(struct qeth_card
*card
)
4178 QETH_CARD_TEXT(card
, 4, "setactlo");
4180 if ((card
->info
.type
== QETH_CARD_TYPE_OSD
||
4181 card
->info
.type
== QETH_CARD_TYPE_OSX
) &&
4182 qeth_adp_supported(card
, IPA_SETADP_SET_ACCESS_CONTROL
)) {
4183 rc
= qeth_setadpparms_set_access_ctrl(card
,
4184 card
->options
.isolation
);
4187 "IPA(SET_ACCESS_CTRL,%s,%d) sent failed\n",
4188 card
->gdev
->dev
.kobj
.name
,
4191 } else if (card
->options
.isolation
!= ISOLATION_MODE_NONE
) {
4192 card
->options
.isolation
= ISOLATION_MODE_NONE
;
4194 dev_err(&card
->gdev
->dev
, "Adapter does not "
4195 "support QDIO data connection isolation\n");
4200 EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online
);
4202 void qeth_tx_timeout(struct net_device
*dev
)
4204 struct qeth_card
*card
;
4206 card
= dev
->ml_priv
;
4207 QETH_CARD_TEXT(card
, 4, "txtimeo");
4208 card
->stats
.tx_errors
++;
4209 qeth_schedule_recovery(card
);
4211 EXPORT_SYMBOL_GPL(qeth_tx_timeout
);
4213 int qeth_mdio_read(struct net_device
*dev
, int phy_id
, int regnum
)
4215 struct qeth_card
*card
= dev
->ml_priv
;
4219 case MII_BMCR
: /* Basic mode control register */
4221 if ((card
->info
.link_type
!= QETH_LINK_TYPE_GBIT_ETH
) &&
4222 (card
->info
.link_type
!= QETH_LINK_TYPE_OSN
) &&
4223 (card
->info
.link_type
!= QETH_LINK_TYPE_10GBIT_ETH
))
4224 rc
|= BMCR_SPEED100
;
4226 case MII_BMSR
: /* Basic mode status register */
4227 rc
= BMSR_ERCAP
| BMSR_ANEGCOMPLETE
| BMSR_LSTATUS
|
4228 BMSR_10HALF
| BMSR_10FULL
| BMSR_100HALF
| BMSR_100FULL
|
4231 case MII_PHYSID1
: /* PHYS ID 1 */
4232 rc
= (dev
->dev_addr
[0] << 16) | (dev
->dev_addr
[1] << 8) |
4234 rc
= (rc
>> 5) & 0xFFFF;
4236 case MII_PHYSID2
: /* PHYS ID 2 */
4237 rc
= (dev
->dev_addr
[2] << 10) & 0xFFFF;
4239 case MII_ADVERTISE
: /* Advertisement control reg */
4242 case MII_LPA
: /* Link partner ability reg */
4243 rc
= LPA_10HALF
| LPA_10FULL
| LPA_100HALF
| LPA_100FULL
|
4244 LPA_100BASE4
| LPA_LPACK
;
4246 case MII_EXPANSION
: /* Expansion register */
4248 case MII_DCOUNTER
: /* disconnect counter */
4250 case MII_FCSCOUNTER
: /* false carrier counter */
4252 case MII_NWAYTEST
: /* N-way auto-neg test register */
4254 case MII_RERRCOUNTER
: /* rx error counter */
4255 rc
= card
->stats
.rx_errors
;
4257 case MII_SREVISION
: /* silicon revision */
4259 case MII_RESV1
: /* reserved 1 */
4261 case MII_LBRERROR
: /* loopback, rx, bypass error */
4263 case MII_PHYADDR
: /* physical address */
4265 case MII_RESV2
: /* reserved 2 */
4267 case MII_TPISTATUS
: /* TPI status for 10mbps */
4269 case MII_NCONFIG
: /* network interface config */
4276 EXPORT_SYMBOL_GPL(qeth_mdio_read
);
4278 static int qeth_send_ipa_snmp_cmd(struct qeth_card
*card
,
4279 struct qeth_cmd_buffer
*iob
, int len
,
4280 int (*reply_cb
)(struct qeth_card
*, struct qeth_reply
*,
4286 QETH_CARD_TEXT(card
, 4, "sendsnmp");
4288 memcpy(iob
->data
, IPA_PDU_HEADER
, IPA_PDU_HEADER_SIZE
);
4289 memcpy(QETH_IPA_CMD_DEST_ADDR(iob
->data
),
4290 &card
->token
.ulp_connection_r
, QETH_MPC_TOKEN_LENGTH
);
4291 /* adjust PDU length fields in IPA_PDU_HEADER */
4292 s1
= (u32
) IPA_PDU_HEADER_SIZE
+ len
;
4294 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob
->data
), &s1
, 2);
4295 memcpy(QETH_IPA_PDU_LEN_PDU1(iob
->data
), &s2
, 2);
4296 memcpy(QETH_IPA_PDU_LEN_PDU2(iob
->data
), &s2
, 2);
4297 memcpy(QETH_IPA_PDU_LEN_PDU3(iob
->data
), &s2
, 2);
4298 return qeth_send_control_data(card
, IPA_PDU_HEADER_SIZE
+ len
, iob
,
4299 reply_cb
, reply_param
);
4302 static int qeth_snmp_command_cb(struct qeth_card
*card
,
4303 struct qeth_reply
*reply
, unsigned long sdata
)
4305 struct qeth_ipa_cmd
*cmd
;
4306 struct qeth_arp_query_info
*qinfo
;
4307 struct qeth_snmp_cmd
*snmp
;
4308 unsigned char *data
;
4311 QETH_CARD_TEXT(card
, 3, "snpcmdcb");
4313 cmd
= (struct qeth_ipa_cmd
*) sdata
;
4314 data
= (unsigned char *)((char *)cmd
- reply
->offset
);
4315 qinfo
= (struct qeth_arp_query_info
*) reply
->param
;
4316 snmp
= &cmd
->data
.setadapterparms
.data
.snmp
;
4318 if (cmd
->hdr
.return_code
) {
4319 QETH_CARD_TEXT_(card
, 4, "scer1%i", cmd
->hdr
.return_code
);
4322 if (cmd
->data
.setadapterparms
.hdr
.return_code
) {
4323 cmd
->hdr
.return_code
=
4324 cmd
->data
.setadapterparms
.hdr
.return_code
;
4325 QETH_CARD_TEXT_(card
, 4, "scer2%i", cmd
->hdr
.return_code
);
4328 data_len
= *((__u16
*)QETH_IPA_PDU_LEN_PDU1(data
));
4329 if (cmd
->data
.setadapterparms
.hdr
.seq_no
== 1)
4330 data_len
-= (__u16
)((char *)&snmp
->data
- (char *)cmd
);
4332 data_len
-= (__u16
)((char *)&snmp
->request
- (char *)cmd
);
4334 /* check if there is enough room in userspace */
4335 if ((qinfo
->udata_len
- qinfo
->udata_offset
) < data_len
) {
4336 QETH_CARD_TEXT_(card
, 4, "scer3%i", -ENOMEM
);
4337 cmd
->hdr
.return_code
= IPA_RC_ENOMEM
;
4340 QETH_CARD_TEXT_(card
, 4, "snore%i",
4341 cmd
->data
.setadapterparms
.hdr
.used_total
);
4342 QETH_CARD_TEXT_(card
, 4, "sseqn%i",
4343 cmd
->data
.setadapterparms
.hdr
.seq_no
);
4344 /*copy entries to user buffer*/
4345 if (cmd
->data
.setadapterparms
.hdr
.seq_no
== 1) {
4346 memcpy(qinfo
->udata
+ qinfo
->udata_offset
,
4348 data_len
+ offsetof(struct qeth_snmp_cmd
, data
));
4349 qinfo
->udata_offset
+= offsetof(struct qeth_snmp_cmd
, data
);
4351 memcpy(qinfo
->udata
+ qinfo
->udata_offset
,
4352 (char *)&snmp
->request
, data_len
);
4354 qinfo
->udata_offset
+= data_len
;
4355 /* check if all replies received ... */
4356 QETH_CARD_TEXT_(card
, 4, "srtot%i",
4357 cmd
->data
.setadapterparms
.hdr
.used_total
);
4358 QETH_CARD_TEXT_(card
, 4, "srseq%i",
4359 cmd
->data
.setadapterparms
.hdr
.seq_no
);
4360 if (cmd
->data
.setadapterparms
.hdr
.seq_no
<
4361 cmd
->data
.setadapterparms
.hdr
.used_total
)
4366 int qeth_snmp_command(struct qeth_card
*card
, char __user
*udata
)
4368 struct qeth_cmd_buffer
*iob
;
4369 struct qeth_ipa_cmd
*cmd
;
4370 struct qeth_snmp_ureq
*ureq
;
4372 struct qeth_arp_query_info qinfo
= {0, };
4375 QETH_CARD_TEXT(card
, 3, "snmpcmd");
4377 if (card
->info
.guestlan
)
4380 if ((!qeth_adp_supported(card
, IPA_SETADP_SET_SNMP_CONTROL
)) &&
4381 (!card
->options
.layer2
)) {
4384 /* skip 4 bytes (data_len struct member) to get req_len */
4385 if (copy_from_user(&req_len
, udata
+ sizeof(int), sizeof(int)))
4387 ureq
= memdup_user(udata
, req_len
+ sizeof(struct qeth_snmp_ureq_hdr
));
4389 QETH_CARD_TEXT(card
, 2, "snmpnome");
4390 return PTR_ERR(ureq
);
4392 qinfo
.udata_len
= ureq
->hdr
.data_len
;
4393 qinfo
.udata
= kzalloc(qinfo
.udata_len
, GFP_KERNEL
);
4398 qinfo
.udata_offset
= sizeof(struct qeth_snmp_ureq_hdr
);
4400 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_SET_SNMP_CONTROL
,
4401 QETH_SNMP_SETADP_CMDLENGTH
+ req_len
);
4402 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
4403 memcpy(&cmd
->data
.setadapterparms
.data
.snmp
, &ureq
->cmd
, req_len
);
4404 rc
= qeth_send_ipa_snmp_cmd(card
, iob
, QETH_SETADP_BASE_LEN
+ req_len
,
4405 qeth_snmp_command_cb
, (void *)&qinfo
);
4407 QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n",
4408 QETH_CARD_IFNAME(card
), rc
);
4410 if (copy_to_user(udata
, qinfo
.udata
, qinfo
.udata_len
))
4418 EXPORT_SYMBOL_GPL(qeth_snmp_command
);
4420 static int qeth_setadpparms_query_oat_cb(struct qeth_card
*card
,
4421 struct qeth_reply
*reply
, unsigned long data
)
4423 struct qeth_ipa_cmd
*cmd
;
4424 struct qeth_qoat_priv
*priv
;
4428 QETH_CARD_TEXT(card
, 3, "qoatcb");
4430 cmd
= (struct qeth_ipa_cmd
*)data
;
4431 priv
= (struct qeth_qoat_priv
*)reply
->param
;
4432 resdatalen
= cmd
->data
.setadapterparms
.hdr
.cmdlength
;
4433 resdata
= (char *)data
+ 28;
4435 if (resdatalen
> (priv
->buffer_len
- priv
->response_len
)) {
4436 cmd
->hdr
.return_code
= IPA_RC_FFFF
;
4440 memcpy((priv
->buffer
+ priv
->response_len
), resdata
,
4442 priv
->response_len
+= resdatalen
;
4444 if (cmd
->data
.setadapterparms
.hdr
.seq_no
<
4445 cmd
->data
.setadapterparms
.hdr
.used_total
)
4450 int qeth_query_oat_command(struct qeth_card
*card
, char __user
*udata
)
4453 struct qeth_cmd_buffer
*iob
;
4454 struct qeth_ipa_cmd
*cmd
;
4455 struct qeth_query_oat
*oat_req
;
4456 struct qeth_query_oat_data oat_data
;
4457 struct qeth_qoat_priv priv
;
4460 QETH_CARD_TEXT(card
, 3, "qoatcmd");
4462 if (!qeth_adp_supported(card
, IPA_SETADP_QUERY_OAT
)) {
4467 if (copy_from_user(&oat_data
, udata
,
4468 sizeof(struct qeth_query_oat_data
))) {
4473 priv
.buffer_len
= oat_data
.buffer_len
;
4474 priv
.response_len
= 0;
4475 priv
.buffer
= kzalloc(oat_data
.buffer_len
, GFP_KERNEL
);
4481 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_QUERY_OAT
,
4482 sizeof(struct qeth_ipacmd_setadpparms_hdr
) +
4483 sizeof(struct qeth_query_oat
));
4484 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
4485 oat_req
= &cmd
->data
.setadapterparms
.data
.query_oat
;
4486 oat_req
->subcmd_code
= oat_data
.command
;
4488 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_setadpparms_query_oat_cb
,
4491 if (is_compat_task())
4492 tmp
= compat_ptr(oat_data
.ptr
);
4494 tmp
= (void __user
*)(unsigned long)oat_data
.ptr
;
4496 if (copy_to_user(tmp
, priv
.buffer
,
4497 priv
.response_len
)) {
4502 oat_data
.response_len
= priv
.response_len
;
4504 if (copy_to_user(udata
, &oat_data
,
4505 sizeof(struct qeth_query_oat_data
)))
4508 if (rc
== IPA_RC_FFFF
)
4516 EXPORT_SYMBOL_GPL(qeth_query_oat_command
);
4518 static inline int qeth_get_qdio_q_format(struct qeth_card
*card
)
4520 switch (card
->info
.type
) {
4521 case QETH_CARD_TYPE_IQD
:
4528 static void qeth_determine_capabilities(struct qeth_card
*card
)
4533 struct ccw_device
*ddev
;
4534 int ddev_offline
= 0;
4536 QETH_DBF_TEXT(SETUP
, 2, "detcapab");
4537 ddev
= CARD_DDEV(card
);
4538 if (!ddev
->online
) {
4540 rc
= ccw_device_set_online(ddev
);
4542 QETH_DBF_TEXT_(SETUP
, 2, "3err%d", rc
);
4547 rc
= qeth_read_conf_data(card
, (void **) &prcd
, &length
);
4549 QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n",
4550 dev_name(&card
->gdev
->dev
), rc
);
4551 QETH_DBF_TEXT_(SETUP
, 2, "5err%d", rc
);
4554 qeth_configure_unitaddr(card
, prcd
);
4556 qeth_configure_blkt_default(card
, prcd
);
4559 rc
= qdio_get_ssqd_desc(ddev
, &card
->ssqd
);
4561 QETH_DBF_TEXT_(SETUP
, 2, "6err%d", rc
);
4563 QETH_DBF_TEXT_(SETUP
, 2, "qfmt%d", card
->ssqd
.qfmt
);
4564 QETH_DBF_TEXT_(SETUP
, 2, "%d", card
->ssqd
.qdioac1
);
4565 QETH_DBF_TEXT_(SETUP
, 2, "%d", card
->ssqd
.qdioac3
);
4566 QETH_DBF_TEXT_(SETUP
, 2, "icnt%d", card
->ssqd
.icnt
);
4567 if (!((card
->ssqd
.qfmt
!= QDIO_IQDIO_QFMT
) ||
4568 ((card
->ssqd
.qdioac1
& CHSC_AC1_INITIATE_INPUTQ
) == 0) ||
4569 ((card
->ssqd
.qdioac3
& CHSC_AC3_FORMAT2_CQ_AVAILABLE
) == 0))) {
4570 dev_info(&card
->gdev
->dev
,
4571 "Completion Queueing supported\n");
4573 card
->options
.cq
= QETH_CQ_NOTAVAILABLE
;
4578 if (ddev_offline
== 1)
4579 ccw_device_set_offline(ddev
);
4584 static inline void qeth_qdio_establish_cq(struct qeth_card
*card
,
4585 struct qdio_buffer
**in_sbal_ptrs
,
4586 void (**queue_start_poll
) (struct ccw_device
*, int, unsigned long)) {
4589 if (card
->options
.cq
== QETH_CQ_ENABLED
) {
4590 int offset
= QDIO_MAX_BUFFERS_PER_Q
*
4591 (card
->qdio
.no_in_queues
- 1);
4592 i
= QDIO_MAX_BUFFERS_PER_Q
* (card
->qdio
.no_in_queues
- 1);
4593 for (i
= 0; i
< QDIO_MAX_BUFFERS_PER_Q
; ++i
) {
4594 in_sbal_ptrs
[offset
+ i
] = (struct qdio_buffer
*)
4595 virt_to_phys(card
->qdio
.c_q
->bufs
[i
].buffer
);
4598 queue_start_poll
[card
->qdio
.no_in_queues
- 1] = NULL
;
4602 static int qeth_qdio_establish(struct qeth_card
*card
)
4604 struct qdio_initialize init_data
;
4605 char *qib_param_field
;
4606 struct qdio_buffer
**in_sbal_ptrs
;
4607 void (**queue_start_poll
) (struct ccw_device
*, int, unsigned long);
4608 struct qdio_buffer
**out_sbal_ptrs
;
4612 QETH_DBF_TEXT(SETUP
, 2, "qdioest");
4614 qib_param_field
= kzalloc(QDIO_MAX_BUFFERS_PER_Q
* sizeof(char),
4616 if (!qib_param_field
) {
4618 goto out_free_nothing
;
4621 qeth_create_qib_param_field(card
, qib_param_field
);
4622 qeth_create_qib_param_field_blkt(card
, qib_param_field
);
4624 in_sbal_ptrs
= kzalloc(card
->qdio
.no_in_queues
*
4625 QDIO_MAX_BUFFERS_PER_Q
* sizeof(void *),
4627 if (!in_sbal_ptrs
) {
4629 goto out_free_qib_param
;
4631 for (i
= 0; i
< QDIO_MAX_BUFFERS_PER_Q
; ++i
) {
4632 in_sbal_ptrs
[i
] = (struct qdio_buffer
*)
4633 virt_to_phys(card
->qdio
.in_q
->bufs
[i
].buffer
);
4636 queue_start_poll
= kzalloc(sizeof(void *) * card
->qdio
.no_in_queues
,
4638 if (!queue_start_poll
) {
4640 goto out_free_in_sbals
;
4642 for (i
= 0; i
< card
->qdio
.no_in_queues
; ++i
)
4643 queue_start_poll
[i
] = card
->discipline
->start_poll
;
4645 qeth_qdio_establish_cq(card
, in_sbal_ptrs
, queue_start_poll
);
4648 kzalloc(card
->qdio
.no_out_queues
* QDIO_MAX_BUFFERS_PER_Q
*
4649 sizeof(void *), GFP_KERNEL
);
4650 if (!out_sbal_ptrs
) {
4652 goto out_free_queue_start_poll
;
4654 for (i
= 0, k
= 0; i
< card
->qdio
.no_out_queues
; ++i
)
4655 for (j
= 0; j
< QDIO_MAX_BUFFERS_PER_Q
; ++j
, ++k
) {
4656 out_sbal_ptrs
[k
] = (struct qdio_buffer
*)virt_to_phys(
4657 card
->qdio
.out_qs
[i
]->bufs
[j
]->buffer
);
4660 memset(&init_data
, 0, sizeof(struct qdio_initialize
));
4661 init_data
.cdev
= CARD_DDEV(card
);
4662 init_data
.q_format
= qeth_get_qdio_q_format(card
);
4663 init_data
.qib_param_field_format
= 0;
4664 init_data
.qib_param_field
= qib_param_field
;
4665 init_data
.no_input_qs
= card
->qdio
.no_in_queues
;
4666 init_data
.no_output_qs
= card
->qdio
.no_out_queues
;
4667 init_data
.input_handler
= card
->discipline
->input_handler
;
4668 init_data
.output_handler
= card
->discipline
->output_handler
;
4669 init_data
.queue_start_poll_array
= queue_start_poll
;
4670 init_data
.int_parm
= (unsigned long) card
;
4671 init_data
.input_sbal_addr_array
= (void **) in_sbal_ptrs
;
4672 init_data
.output_sbal_addr_array
= (void **) out_sbal_ptrs
;
4673 init_data
.output_sbal_state_array
= card
->qdio
.out_bufstates
;
4674 init_data
.scan_threshold
=
4675 (card
->info
.type
== QETH_CARD_TYPE_IQD
) ? 8 : 32;
4677 if (atomic_cmpxchg(&card
->qdio
.state
, QETH_QDIO_ALLOCATED
,
4678 QETH_QDIO_ESTABLISHED
) == QETH_QDIO_ALLOCATED
) {
4679 rc
= qdio_allocate(&init_data
);
4681 atomic_set(&card
->qdio
.state
, QETH_QDIO_ALLOCATED
);
4684 rc
= qdio_establish(&init_data
);
4686 atomic_set(&card
->qdio
.state
, QETH_QDIO_ALLOCATED
);
4687 qdio_free(CARD_DDEV(card
));
4691 switch (card
->options
.cq
) {
4692 case QETH_CQ_ENABLED
:
4693 dev_info(&card
->gdev
->dev
, "Completion Queue support enabled");
4695 case QETH_CQ_DISABLED
:
4696 dev_info(&card
->gdev
->dev
, "Completion Queue support disabled");
4702 kfree(out_sbal_ptrs
);
4703 out_free_queue_start_poll
:
4704 kfree(queue_start_poll
);
4706 kfree(in_sbal_ptrs
);
4708 kfree(qib_param_field
);
4713 static void qeth_core_free_card(struct qeth_card
*card
)
4716 QETH_DBF_TEXT(SETUP
, 2, "freecrd");
4717 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
4718 qeth_clean_channel(&card
->read
);
4719 qeth_clean_channel(&card
->write
);
4721 free_netdev(card
->dev
);
4722 kfree(card
->ip_tbd_list
);
4723 qeth_free_qdio_buffers(card
);
4724 unregister_service_level(&card
->qeth_service_level
);
4728 void qeth_trace_features(struct qeth_card
*card
)
4730 QETH_CARD_TEXT(card
, 2, "features");
4731 QETH_CARD_TEXT_(card
, 2, "%x", card
->options
.ipa4
.supported_funcs
);
4732 QETH_CARD_TEXT_(card
, 2, "%x", card
->options
.ipa4
.enabled_funcs
);
4733 QETH_CARD_TEXT_(card
, 2, "%x", card
->options
.ipa6
.supported_funcs
);
4734 QETH_CARD_TEXT_(card
, 2, "%x", card
->options
.ipa6
.enabled_funcs
);
4735 QETH_CARD_TEXT_(card
, 2, "%x", card
->options
.adp
.supported_funcs
);
4736 QETH_CARD_TEXT_(card
, 2, "%x", card
->options
.adp
.enabled_funcs
);
4737 QETH_CARD_TEXT_(card
, 2, "%x", card
->info
.diagass_support
);
4739 EXPORT_SYMBOL_GPL(qeth_trace_features
);
4741 static struct ccw_device_id qeth_ids
[] = {
4742 {CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01),
4743 .driver_info
= QETH_CARD_TYPE_OSD
},
4744 {CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05),
4745 .driver_info
= QETH_CARD_TYPE_IQD
},
4746 {CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06),
4747 .driver_info
= QETH_CARD_TYPE_OSN
},
4748 {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03),
4749 .driver_info
= QETH_CARD_TYPE_OSM
},
4750 {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02),
4751 .driver_info
= QETH_CARD_TYPE_OSX
},
4754 MODULE_DEVICE_TABLE(ccw
, qeth_ids
);
4756 static struct ccw_driver qeth_ccw_driver
= {
4758 .owner
= THIS_MODULE
,
4762 .probe
= ccwgroup_probe_ccwdev
,
4763 .remove
= ccwgroup_remove_ccwdev
,
4766 int qeth_core_hardsetup_card(struct qeth_card
*card
)
4771 QETH_DBF_TEXT(SETUP
, 2, "hrdsetup");
4772 atomic_set(&card
->force_alloc_skb
, 0);
4773 qeth_update_from_chp_desc(card
);
4776 QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n",
4777 dev_name(&card
->gdev
->dev
));
4778 ccw_device_set_offline(CARD_DDEV(card
));
4779 ccw_device_set_offline(CARD_WDEV(card
));
4780 ccw_device_set_offline(CARD_RDEV(card
));
4781 rc
= ccw_device_set_online(CARD_RDEV(card
));
4784 rc
= ccw_device_set_online(CARD_WDEV(card
));
4787 rc
= ccw_device_set_online(CARD_DDEV(card
));
4790 rc
= qeth_qdio_clear_card(card
, card
->info
.type
!= QETH_CARD_TYPE_IQD
);
4792 if (rc
== -ERESTARTSYS
) {
4793 QETH_DBF_TEXT(SETUP
, 2, "break1");
4796 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
4802 qeth_determine_capabilities(card
);
4803 qeth_init_tokens(card
);
4804 qeth_init_func_level(card
);
4805 rc
= qeth_idx_activate_channel(&card
->read
, qeth_idx_read_cb
);
4806 if (rc
== -ERESTARTSYS
) {
4807 QETH_DBF_TEXT(SETUP
, 2, "break2");
4810 QETH_DBF_TEXT_(SETUP
, 2, "3err%d", rc
);
4816 rc
= qeth_idx_activate_channel(&card
->write
, qeth_idx_write_cb
);
4817 if (rc
== -ERESTARTSYS
) {
4818 QETH_DBF_TEXT(SETUP
, 2, "break3");
4821 QETH_DBF_TEXT_(SETUP
, 2, "4err%d", rc
);
4827 card
->read_or_write_problem
= 0;
4828 rc
= qeth_mpc_initialize(card
);
4830 QETH_DBF_TEXT_(SETUP
, 2, "5err%d", rc
);
4834 card
->options
.ipa4
.supported_funcs
= 0;
4835 card
->options
.adp
.supported_funcs
= 0;
4836 card
->info
.diagass_support
= 0;
4837 qeth_query_ipassists(card
, QETH_PROT_IPV4
);
4838 if (qeth_is_supported(card
, IPA_SETADAPTERPARMS
))
4839 qeth_query_setadapterparms(card
);
4840 if (qeth_adp_supported(card
, IPA_SETADP_SET_DIAG_ASSIST
))
4841 qeth_query_setdiagass(card
);
4844 dev_warn(&card
->gdev
->dev
, "The qeth device driver failed to recover "
4845 "an error on the device\n");
4846 QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n",
4847 dev_name(&card
->gdev
->dev
), rc
);
4850 EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card
);
4852 static inline int qeth_create_skb_frag(struct qeth_qdio_buffer
*qethbuffer
,
4853 struct qdio_buffer_element
*element
,
4854 struct sk_buff
**pskb
, int offset
, int *pfrag
, int data_len
)
4856 struct page
*page
= virt_to_page(element
->addr
);
4857 if (*pskb
== NULL
) {
4858 if (qethbuffer
->rx_skb
) {
4859 /* only if qeth_card.options.cq == QETH_CQ_ENABLED */
4860 *pskb
= qethbuffer
->rx_skb
;
4861 qethbuffer
->rx_skb
= NULL
;
4863 *pskb
= dev_alloc_skb(QETH_RX_PULL_LEN
+ ETH_HLEN
);
4868 skb_reserve(*pskb
, ETH_HLEN
);
4869 if (data_len
<= QETH_RX_PULL_LEN
) {
4870 memcpy(skb_put(*pskb
, data_len
), element
->addr
+ offset
,
4874 memcpy(skb_put(*pskb
, QETH_RX_PULL_LEN
),
4875 element
->addr
+ offset
, QETH_RX_PULL_LEN
);
4876 skb_fill_page_desc(*pskb
, *pfrag
, page
,
4877 offset
+ QETH_RX_PULL_LEN
,
4878 data_len
- QETH_RX_PULL_LEN
);
4879 (*pskb
)->data_len
+= data_len
- QETH_RX_PULL_LEN
;
4880 (*pskb
)->len
+= data_len
- QETH_RX_PULL_LEN
;
4881 (*pskb
)->truesize
+= data_len
- QETH_RX_PULL_LEN
;
4886 skb_fill_page_desc(*pskb
, *pfrag
, page
, offset
, data_len
);
4887 (*pskb
)->data_len
+= data_len
;
4888 (*pskb
)->len
+= data_len
;
4889 (*pskb
)->truesize
+= data_len
;
4897 struct sk_buff
*qeth_core_get_next_skb(struct qeth_card
*card
,
4898 struct qeth_qdio_buffer
*qethbuffer
,
4899 struct qdio_buffer_element
**__element
, int *__offset
,
4900 struct qeth_hdr
**hdr
)
4902 struct qdio_buffer_element
*element
= *__element
;
4903 struct qdio_buffer
*buffer
= qethbuffer
->buffer
;
4904 int offset
= *__offset
;
4905 struct sk_buff
*skb
= NULL
;
4913 /* qeth_hdr must not cross element boundaries */
4914 if (element
->length
< offset
+ sizeof(struct qeth_hdr
)) {
4915 if (qeth_is_last_sbale(element
))
4919 if (element
->length
< sizeof(struct qeth_hdr
))
4922 *hdr
= element
->addr
+ offset
;
4924 offset
+= sizeof(struct qeth_hdr
);
4925 switch ((*hdr
)->hdr
.l2
.id
) {
4926 case QETH_HEADER_TYPE_LAYER2
:
4927 skb_len
= (*hdr
)->hdr
.l2
.pkt_length
;
4929 case QETH_HEADER_TYPE_LAYER3
:
4930 skb_len
= (*hdr
)->hdr
.l3
.length
;
4931 headroom
= ETH_HLEN
;
4933 case QETH_HEADER_TYPE_OSN
:
4934 skb_len
= (*hdr
)->hdr
.osn
.pdu_length
;
4935 headroom
= sizeof(struct qeth_hdr
);
4944 if (((skb_len
>= card
->options
.rx_sg_cb
) &&
4945 (!(card
->info
.type
== QETH_CARD_TYPE_OSN
)) &&
4946 (!atomic_read(&card
->force_alloc_skb
))) ||
4947 (card
->options
.cq
== QETH_CQ_ENABLED
)) {
4950 skb
= dev_alloc_skb(skb_len
+ headroom
);
4954 skb_reserve(skb
, headroom
);
4957 data_ptr
= element
->addr
+ offset
;
4959 data_len
= min(skb_len
, (int)(element
->length
- offset
));
4962 if (qeth_create_skb_frag(qethbuffer
, element
,
4963 &skb
, offset
, &frag
, data_len
))
4966 memcpy(skb_put(skb
, data_len
), data_ptr
,
4970 skb_len
-= data_len
;
4972 if (qeth_is_last_sbale(element
)) {
4973 QETH_CARD_TEXT(card
, 4, "unexeob");
4974 QETH_CARD_HEX(card
, 2, buffer
, sizeof(void *));
4975 dev_kfree_skb_any(skb
);
4976 card
->stats
.rx_errors
++;
4981 data_ptr
= element
->addr
;
4986 *__element
= element
;
4988 if (use_rx_sg
&& card
->options
.performance_stats
) {
4989 card
->perf_stats
.sg_skbs_rx
++;
4990 card
->perf_stats
.sg_frags_rx
+= skb_shinfo(skb
)->nr_frags
;
4994 if (net_ratelimit()) {
4995 QETH_CARD_TEXT(card
, 2, "noskbmem");
4997 card
->stats
.rx_dropped
++;
5000 EXPORT_SYMBOL_GPL(qeth_core_get_next_skb
);
5002 static void qeth_unregister_dbf_views(void)
5005 for (x
= 0; x
< QETH_DBF_INFOS
; x
++) {
5006 debug_unregister(qeth_dbf
[x
].id
);
5007 qeth_dbf
[x
].id
= NULL
;
5011 void qeth_dbf_longtext(debug_info_t
*id
, int level
, char *fmt
, ...)
5013 char dbf_txt_buf
[32];
5016 if (level
> id
->level
)
5018 va_start(args
, fmt
);
5019 vsnprintf(dbf_txt_buf
, sizeof(dbf_txt_buf
), fmt
, args
);
5021 debug_text_event(id
, level
, dbf_txt_buf
);
5023 EXPORT_SYMBOL_GPL(qeth_dbf_longtext
);
5025 static int qeth_register_dbf_views(void)
5030 for (x
= 0; x
< QETH_DBF_INFOS
; x
++) {
5031 /* register the areas */
5032 qeth_dbf
[x
].id
= debug_register(qeth_dbf
[x
].name
,
5036 if (qeth_dbf
[x
].id
== NULL
) {
5037 qeth_unregister_dbf_views();
5041 /* register a view */
5042 ret
= debug_register_view(qeth_dbf
[x
].id
, qeth_dbf
[x
].view
);
5044 qeth_unregister_dbf_views();
5048 /* set a passing level */
5049 debug_set_level(qeth_dbf
[x
].id
, qeth_dbf
[x
].level
);
5055 int qeth_core_load_discipline(struct qeth_card
*card
,
5056 enum qeth_discipline_id discipline
)
5059 mutex_lock(&qeth_mod_mutex
);
5060 switch (discipline
) {
5061 case QETH_DISCIPLINE_LAYER3
:
5062 card
->discipline
= try_then_request_module(
5063 symbol_get(qeth_l3_discipline
), "qeth_l3");
5065 case QETH_DISCIPLINE_LAYER2
:
5066 card
->discipline
= try_then_request_module(
5067 symbol_get(qeth_l2_discipline
), "qeth_l2");
5070 if (!card
->discipline
) {
5071 dev_err(&card
->gdev
->dev
, "There is no kernel module to "
5072 "support discipline %d\n", discipline
);
5075 mutex_unlock(&qeth_mod_mutex
);
5079 void qeth_core_free_discipline(struct qeth_card
*card
)
5081 if (card
->options
.layer2
)
5082 symbol_put(qeth_l2_discipline
);
5084 symbol_put(qeth_l3_discipline
);
5085 card
->discipline
= NULL
;
5088 static const struct device_type qeth_generic_devtype
= {
5089 .name
= "qeth_generic",
5090 .groups
= qeth_generic_attr_groups
,
5092 static const struct device_type qeth_osn_devtype
= {
5094 .groups
= qeth_osn_attr_groups
,
5097 static int qeth_core_probe_device(struct ccwgroup_device
*gdev
)
5099 struct qeth_card
*card
;
5102 unsigned long flags
;
5105 QETH_DBF_TEXT(SETUP
, 2, "probedev");
5108 if (!get_device(dev
))
5111 QETH_DBF_TEXT_(SETUP
, 2, "%s", dev_name(&gdev
->dev
));
5113 card
= qeth_alloc_card();
5115 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", -ENOMEM
);
5120 snprintf(dbf_name
, sizeof(dbf_name
), "qeth_card_%s",
5121 dev_name(&gdev
->dev
));
5122 card
->debug
= debug_register(dbf_name
, 2, 1, 8);
5124 QETH_DBF_TEXT_(SETUP
, 2, "%s", "qcdbf");
5128 debug_register_view(card
->debug
, &debug_hex_ascii_view
);
5130 card
->read
.ccwdev
= gdev
->cdev
[0];
5131 card
->write
.ccwdev
= gdev
->cdev
[1];
5132 card
->data
.ccwdev
= gdev
->cdev
[2];
5133 dev_set_drvdata(&gdev
->dev
, card
);
5135 gdev
->cdev
[0]->handler
= qeth_irq
;
5136 gdev
->cdev
[1]->handler
= qeth_irq
;
5137 gdev
->cdev
[2]->handler
= qeth_irq
;
5139 rc
= qeth_determine_card_type(card
);
5141 QETH_DBF_TEXT_(SETUP
, 2, "3err%d", rc
);
5144 rc
= qeth_setup_card(card
);
5146 QETH_DBF_TEXT_(SETUP
, 2, "2err%d", rc
);
5150 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
5151 gdev
->dev
.type
= &qeth_osn_devtype
;
5153 gdev
->dev
.type
= &qeth_generic_devtype
;
5155 switch (card
->info
.type
) {
5156 case QETH_CARD_TYPE_OSN
:
5157 case QETH_CARD_TYPE_OSM
:
5158 rc
= qeth_core_load_discipline(card
, QETH_DISCIPLINE_LAYER2
);
5161 rc
= card
->discipline
->setup(card
->gdev
);
5164 case QETH_CARD_TYPE_OSD
:
5165 case QETH_CARD_TYPE_OSX
:
5170 write_lock_irqsave(&qeth_core_card_list
.rwlock
, flags
);
5171 list_add_tail(&card
->list
, &qeth_core_card_list
.list
);
5172 write_unlock_irqrestore(&qeth_core_card_list
.rwlock
, flags
);
5174 qeth_determine_capabilities(card
);
5178 qeth_core_free_discipline(card
);
5180 debug_unregister(card
->debug
);
5182 qeth_core_free_card(card
);
5188 static void qeth_core_remove_device(struct ccwgroup_device
*gdev
)
5190 unsigned long flags
;
5191 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5193 QETH_DBF_TEXT(SETUP
, 2, "removedv");
5195 if (card
->discipline
) {
5196 card
->discipline
->remove(gdev
);
5197 qeth_core_free_discipline(card
);
5200 debug_unregister(card
->debug
);
5201 write_lock_irqsave(&qeth_core_card_list
.rwlock
, flags
);
5202 list_del(&card
->list
);
5203 write_unlock_irqrestore(&qeth_core_card_list
.rwlock
, flags
);
5204 qeth_core_free_card(card
);
5205 dev_set_drvdata(&gdev
->dev
, NULL
);
5206 put_device(&gdev
->dev
);
5210 static int qeth_core_set_online(struct ccwgroup_device
*gdev
)
5212 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5216 if (!card
->discipline
) {
5217 if (card
->info
.type
== QETH_CARD_TYPE_IQD
)
5218 def_discipline
= QETH_DISCIPLINE_LAYER3
;
5220 def_discipline
= QETH_DISCIPLINE_LAYER2
;
5221 rc
= qeth_core_load_discipline(card
, def_discipline
);
5224 rc
= card
->discipline
->setup(card
->gdev
);
5228 rc
= card
->discipline
->set_online(gdev
);
5233 static int qeth_core_set_offline(struct ccwgroup_device
*gdev
)
5235 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5236 return card
->discipline
->set_offline(gdev
);
5239 static void qeth_core_shutdown(struct ccwgroup_device
*gdev
)
5241 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5242 if (card
->discipline
&& card
->discipline
->shutdown
)
5243 card
->discipline
->shutdown(gdev
);
5246 static int qeth_core_prepare(struct ccwgroup_device
*gdev
)
5248 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5249 if (card
->discipline
&& card
->discipline
->prepare
)
5250 return card
->discipline
->prepare(gdev
);
5254 static void qeth_core_complete(struct ccwgroup_device
*gdev
)
5256 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5257 if (card
->discipline
&& card
->discipline
->complete
)
5258 card
->discipline
->complete(gdev
);
5261 static int qeth_core_freeze(struct ccwgroup_device
*gdev
)
5263 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5264 if (card
->discipline
&& card
->discipline
->freeze
)
5265 return card
->discipline
->freeze(gdev
);
5269 static int qeth_core_thaw(struct ccwgroup_device
*gdev
)
5271 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5272 if (card
->discipline
&& card
->discipline
->thaw
)
5273 return card
->discipline
->thaw(gdev
);
5277 static int qeth_core_restore(struct ccwgroup_device
*gdev
)
5279 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5280 if (card
->discipline
&& card
->discipline
->restore
)
5281 return card
->discipline
->restore(gdev
);
5285 static struct ccwgroup_driver qeth_core_ccwgroup_driver
= {
5287 .owner
= THIS_MODULE
,
5290 .setup
= qeth_core_probe_device
,
5291 .remove
= qeth_core_remove_device
,
5292 .set_online
= qeth_core_set_online
,
5293 .set_offline
= qeth_core_set_offline
,
5294 .shutdown
= qeth_core_shutdown
,
5295 .prepare
= qeth_core_prepare
,
5296 .complete
= qeth_core_complete
,
5297 .freeze
= qeth_core_freeze
,
5298 .thaw
= qeth_core_thaw
,
5299 .restore
= qeth_core_restore
,
5302 static ssize_t
qeth_core_driver_group_store(struct device_driver
*ddrv
,
5303 const char *buf
, size_t count
)
5307 err
= ccwgroup_create_dev(qeth_core_root_dev
,
5308 &qeth_core_ccwgroup_driver
, 3, buf
);
5310 return err
? err
: count
;
5312 static DRIVER_ATTR(group
, 0200, NULL
, qeth_core_driver_group_store
);
5314 static struct attribute
*qeth_drv_attrs
[] = {
5315 &driver_attr_group
.attr
,
5318 static struct attribute_group qeth_drv_attr_group
= {
5319 .attrs
= qeth_drv_attrs
,
5321 static const struct attribute_group
*qeth_drv_attr_groups
[] = {
5322 &qeth_drv_attr_group
,
5327 const char str
[ETH_GSTRING_LEN
];
5328 } qeth_ethtool_stats_keys
[] = {
5333 {"tx skbs no packing"},
5334 {"tx buffers no packing"},
5335 {"tx skbs packing"},
5336 {"tx buffers packing"},
5339 /* 10 */{"rx sg skbs"},
5341 {"rx sg page allocs"},
5342 {"tx large kbytes"},
5344 {"tx pk state ch n->p"},
5345 {"tx pk state ch p->n"},
5346 {"tx pk watermark low"},
5347 {"tx pk watermark high"},
5348 {"queue 0 buffer usage"},
5349 /* 20 */{"queue 1 buffer usage"},
5350 {"queue 2 buffer usage"},
5351 {"queue 3 buffer usage"},
5354 {"rx do_QDIO time"},
5355 {"rx do_QDIO count"},
5356 {"tx handler time"},
5357 {"tx handler count"},
5359 /* 30 */{"tx count"},
5360 {"tx do_QDIO time"},
5361 {"tx do_QDIO count"},
5364 {"cq handler count"},
5368 int qeth_core_get_sset_count(struct net_device
*dev
, int stringset
)
5370 switch (stringset
) {
5372 return (sizeof(qeth_ethtool_stats_keys
) / ETH_GSTRING_LEN
);
5377 EXPORT_SYMBOL_GPL(qeth_core_get_sset_count
);
5379 void qeth_core_get_ethtool_stats(struct net_device
*dev
,
5380 struct ethtool_stats
*stats
, u64
*data
)
5382 struct qeth_card
*card
= dev
->ml_priv
;
5383 data
[0] = card
->stats
.rx_packets
-
5384 card
->perf_stats
.initial_rx_packets
;
5385 data
[1] = card
->perf_stats
.bufs_rec
;
5386 data
[2] = card
->stats
.tx_packets
-
5387 card
->perf_stats
.initial_tx_packets
;
5388 data
[3] = card
->perf_stats
.bufs_sent
;
5389 data
[4] = card
->stats
.tx_packets
- card
->perf_stats
.initial_tx_packets
5390 - card
->perf_stats
.skbs_sent_pack
;
5391 data
[5] = card
->perf_stats
.bufs_sent
- card
->perf_stats
.bufs_sent_pack
;
5392 data
[6] = card
->perf_stats
.skbs_sent_pack
;
5393 data
[7] = card
->perf_stats
.bufs_sent_pack
;
5394 data
[8] = card
->perf_stats
.sg_skbs_sent
;
5395 data
[9] = card
->perf_stats
.sg_frags_sent
;
5396 data
[10] = card
->perf_stats
.sg_skbs_rx
;
5397 data
[11] = card
->perf_stats
.sg_frags_rx
;
5398 data
[12] = card
->perf_stats
.sg_alloc_page_rx
;
5399 data
[13] = (card
->perf_stats
.large_send_bytes
>> 10);
5400 data
[14] = card
->perf_stats
.large_send_cnt
;
5401 data
[15] = card
->perf_stats
.sc_dp_p
;
5402 data
[16] = card
->perf_stats
.sc_p_dp
;
5403 data
[17] = QETH_LOW_WATERMARK_PACK
;
5404 data
[18] = QETH_HIGH_WATERMARK_PACK
;
5405 data
[19] = atomic_read(&card
->qdio
.out_qs
[0]->used_buffers
);
5406 data
[20] = (card
->qdio
.no_out_queues
> 1) ?
5407 atomic_read(&card
->qdio
.out_qs
[1]->used_buffers
) : 0;
5408 data
[21] = (card
->qdio
.no_out_queues
> 2) ?
5409 atomic_read(&card
->qdio
.out_qs
[2]->used_buffers
) : 0;
5410 data
[22] = (card
->qdio
.no_out_queues
> 3) ?
5411 atomic_read(&card
->qdio
.out_qs
[3]->used_buffers
) : 0;
5412 data
[23] = card
->perf_stats
.inbound_time
;
5413 data
[24] = card
->perf_stats
.inbound_cnt
;
5414 data
[25] = card
->perf_stats
.inbound_do_qdio_time
;
5415 data
[26] = card
->perf_stats
.inbound_do_qdio_cnt
;
5416 data
[27] = card
->perf_stats
.outbound_handler_time
;
5417 data
[28] = card
->perf_stats
.outbound_handler_cnt
;
5418 data
[29] = card
->perf_stats
.outbound_time
;
5419 data
[30] = card
->perf_stats
.outbound_cnt
;
5420 data
[31] = card
->perf_stats
.outbound_do_qdio_time
;
5421 data
[32] = card
->perf_stats
.outbound_do_qdio_cnt
;
5422 data
[33] = card
->perf_stats
.tx_csum
;
5423 data
[34] = card
->perf_stats
.tx_lin
;
5424 data
[35] = card
->perf_stats
.cq_cnt
;
5425 data
[36] = card
->perf_stats
.cq_time
;
5427 EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats
);
5429 void qeth_core_get_strings(struct net_device
*dev
, u32 stringset
, u8
*data
)
5431 switch (stringset
) {
5433 memcpy(data
, &qeth_ethtool_stats_keys
,
5434 sizeof(qeth_ethtool_stats_keys
));
5441 EXPORT_SYMBOL_GPL(qeth_core_get_strings
);
5443 void qeth_core_get_drvinfo(struct net_device
*dev
,
5444 struct ethtool_drvinfo
*info
)
5446 struct qeth_card
*card
= dev
->ml_priv
;
5447 if (card
->options
.layer2
)
5448 strcpy(info
->driver
, "qeth_l2");
5450 strcpy(info
->driver
, "qeth_l3");
5452 strcpy(info
->version
, "1.0");
5453 strcpy(info
->fw_version
, card
->info
.mcl_level
);
5454 sprintf(info
->bus_info
, "%s/%s/%s",
5457 CARD_DDEV_ID(card
));
5459 EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo
);
5461 int qeth_core_ethtool_get_settings(struct net_device
*netdev
,
5462 struct ethtool_cmd
*ecmd
)
5464 struct qeth_card
*card
= netdev
->ml_priv
;
5465 enum qeth_link_types link_type
;
5467 if ((card
->info
.type
== QETH_CARD_TYPE_IQD
) || (card
->info
.guestlan
))
5468 link_type
= QETH_LINK_TYPE_10GBIT_ETH
;
5470 link_type
= card
->info
.link_type
;
5472 ecmd
->transceiver
= XCVR_INTERNAL
;
5473 ecmd
->supported
= SUPPORTED_Autoneg
;
5474 ecmd
->advertising
= ADVERTISED_Autoneg
;
5475 ecmd
->duplex
= DUPLEX_FULL
;
5476 ecmd
->autoneg
= AUTONEG_ENABLE
;
5478 switch (link_type
) {
5479 case QETH_LINK_TYPE_FAST_ETH
:
5480 case QETH_LINK_TYPE_LANE_ETH100
:
5481 ecmd
->supported
|= SUPPORTED_10baseT_Half
|
5482 SUPPORTED_10baseT_Full
|
5483 SUPPORTED_100baseT_Half
|
5484 SUPPORTED_100baseT_Full
|
5486 ecmd
->advertising
|= ADVERTISED_10baseT_Half
|
5487 ADVERTISED_10baseT_Full
|
5488 ADVERTISED_100baseT_Half
|
5489 ADVERTISED_100baseT_Full
|
5491 ecmd
->speed
= SPEED_100
;
5492 ecmd
->port
= PORT_TP
;
5495 case QETH_LINK_TYPE_GBIT_ETH
:
5496 case QETH_LINK_TYPE_LANE_ETH1000
:
5497 ecmd
->supported
|= SUPPORTED_10baseT_Half
|
5498 SUPPORTED_10baseT_Full
|
5499 SUPPORTED_100baseT_Half
|
5500 SUPPORTED_100baseT_Full
|
5501 SUPPORTED_1000baseT_Half
|
5502 SUPPORTED_1000baseT_Full
|
5504 ecmd
->advertising
|= ADVERTISED_10baseT_Half
|
5505 ADVERTISED_10baseT_Full
|
5506 ADVERTISED_100baseT_Half
|
5507 ADVERTISED_100baseT_Full
|
5508 ADVERTISED_1000baseT_Half
|
5509 ADVERTISED_1000baseT_Full
|
5511 ecmd
->speed
= SPEED_1000
;
5512 ecmd
->port
= PORT_FIBRE
;
5515 case QETH_LINK_TYPE_10GBIT_ETH
:
5516 ecmd
->supported
|= SUPPORTED_10baseT_Half
|
5517 SUPPORTED_10baseT_Full
|
5518 SUPPORTED_100baseT_Half
|
5519 SUPPORTED_100baseT_Full
|
5520 SUPPORTED_1000baseT_Half
|
5521 SUPPORTED_1000baseT_Full
|
5522 SUPPORTED_10000baseT_Full
|
5524 ecmd
->advertising
|= ADVERTISED_10baseT_Half
|
5525 ADVERTISED_10baseT_Full
|
5526 ADVERTISED_100baseT_Half
|
5527 ADVERTISED_100baseT_Full
|
5528 ADVERTISED_1000baseT_Half
|
5529 ADVERTISED_1000baseT_Full
|
5530 ADVERTISED_10000baseT_Full
|
5532 ecmd
->speed
= SPEED_10000
;
5533 ecmd
->port
= PORT_FIBRE
;
5537 ecmd
->supported
|= SUPPORTED_10baseT_Half
|
5538 SUPPORTED_10baseT_Full
|
5540 ecmd
->advertising
|= ADVERTISED_10baseT_Half
|
5541 ADVERTISED_10baseT_Full
|
5543 ecmd
->speed
= SPEED_10
;
5544 ecmd
->port
= PORT_TP
;
5549 EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_settings
);
5551 static int __init
qeth_core_init(void)
5555 pr_info("loading core functions\n");
5556 INIT_LIST_HEAD(&qeth_core_card_list
.list
);
5557 rwlock_init(&qeth_core_card_list
.rwlock
);
5558 mutex_init(&qeth_mod_mutex
);
5560 rc
= qeth_register_dbf_views();
5563 qeth_core_root_dev
= root_device_register("qeth");
5564 rc
= IS_ERR(qeth_core_root_dev
) ? PTR_ERR(qeth_core_root_dev
) : 0;
5567 qeth_core_header_cache
= kmem_cache_create("qeth_hdr",
5568 sizeof(struct qeth_hdr
) + ETH_HLEN
, 64, 0, NULL
);
5569 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
) {
5579 rc
= ccw_driver_register(&qeth_ccw_driver
);
5582 qeth_core_ccwgroup_driver
.driver
.groups
= qeth_drv_attr_groups
;
5583 rc
= ccwgroup_driver_register(&qeth_core_ccwgroup_driver
);
5590 ccw_driver_unregister(&qeth_ccw_driver
);
5592 kmem_cache_destroy(qeth_qdio_outbuf_cache
);
5594 kmem_cache_destroy(qeth_core_header_cache
);
5596 root_device_unregister(qeth_core_root_dev
);
5598 qeth_unregister_dbf_views();
5600 pr_err("Initializing the qeth device driver failed\n");
5604 static void __exit
qeth_core_exit(void)
5606 ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver
);
5607 ccw_driver_unregister(&qeth_ccw_driver
);
5608 kmem_cache_destroy(qeth_qdio_outbuf_cache
);
5609 kmem_cache_destroy(qeth_core_header_cache
);
5610 root_device_unregister(qeth_core_root_dev
);
5611 qeth_unregister_dbf_views();
5612 pr_info("core functions removed\n");
5615 module_init(qeth_core_init
);
5616 module_exit(qeth_core_exit
);
5617 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
5618 MODULE_DESCRIPTION("qeth core functions");
5619 MODULE_LICENSE("GPL");