1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright IBM Corp. 2007, 2009
4 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
5 * Frank Pavlic <fpavlic@de.ibm.com>,
6 * Thomas Spatzier <tspat@de.ibm.com>,
7 * Frank Blaschka <frank.blaschka@de.ibm.com>
10 #define KMSG_COMPONENT "qeth"
11 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
13 #include <linux/compat.h>
14 #include <linux/module.h>
15 #include <linux/moduleparam.h>
16 #include <linux/string.h>
17 #include <linux/errno.h>
18 #include <linux/kernel.h>
20 #include <linux/tcp.h>
21 #include <linux/mii.h>
22 #include <linux/kthread.h>
23 #include <linux/slab.h>
24 #include <linux/if_vlan.h>
25 #include <linux/netdevice.h>
26 #include <linux/netdev_features.h>
27 #include <linux/skbuff.h>
28 #include <linux/vmalloc.h>
30 #include <net/iucv/af_iucv.h>
31 #include <net/dsfield.h>
33 #include <asm/ebcdic.h>
34 #include <asm/chpid.h>
36 #include <asm/sysinfo.h>
39 #include <asm/ccwdev.h>
40 #include <asm/cpcmd.h>
42 #include "qeth_core.h"
44 struct qeth_dbf_info qeth_dbf
[QETH_DBF_INFOS
] = {
45 /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */
47 [QETH_DBF_SETUP
] = {"qeth_setup",
48 8, 1, 8, 5, &debug_hex_ascii_view
, NULL
},
49 [QETH_DBF_MSG
] = {"qeth_msg", 8, 1, 11 * sizeof(long), 3,
50 &debug_sprintf_view
, NULL
},
51 [QETH_DBF_CTRL
] = {"qeth_control",
52 8, 1, QETH_DBF_CTRL_LEN
, 5, &debug_hex_ascii_view
, NULL
},
54 EXPORT_SYMBOL_GPL(qeth_dbf
);
56 struct qeth_card_list_struct qeth_core_card_list
;
57 EXPORT_SYMBOL_GPL(qeth_core_card_list
);
58 struct kmem_cache
*qeth_core_header_cache
;
59 EXPORT_SYMBOL_GPL(qeth_core_header_cache
);
60 static struct kmem_cache
*qeth_qdio_outbuf_cache
;
62 static struct device
*qeth_core_root_dev
;
63 static struct lock_class_key qdio_out_skb_queue_key
;
64 static struct mutex qeth_mod_mutex
;
66 static void qeth_send_control_data_cb(struct qeth_channel
*,
67 struct qeth_cmd_buffer
*);
68 static struct qeth_cmd_buffer
*qeth_get_buffer(struct qeth_channel
*);
69 static void qeth_free_buffer_pool(struct qeth_card
*);
70 static int qeth_qdio_establish(struct qeth_card
*);
71 static void qeth_free_qdio_buffers(struct qeth_card
*);
72 static void qeth_notify_skbs(struct qeth_qdio_out_q
*queue
,
73 struct qeth_qdio_out_buffer
*buf
,
74 enum iucv_tx_notify notification
);
75 static void qeth_release_skbs(struct qeth_qdio_out_buffer
*buf
);
76 static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q
*, int);
78 struct workqueue_struct
*qeth_wq
;
79 EXPORT_SYMBOL_GPL(qeth_wq
);
81 int qeth_card_hw_is_reachable(struct qeth_card
*card
)
83 return (card
->state
== CARD_STATE_SOFTSETUP
) ||
84 (card
->state
== CARD_STATE_UP
);
86 EXPORT_SYMBOL_GPL(qeth_card_hw_is_reachable
);
88 static void qeth_close_dev_handler(struct work_struct
*work
)
90 struct qeth_card
*card
;
92 card
= container_of(work
, struct qeth_card
, close_dev_work
);
93 QETH_CARD_TEXT(card
, 2, "cldevhdl");
97 ccwgroup_set_offline(card
->gdev
);
100 void qeth_close_dev(struct qeth_card
*card
)
102 QETH_CARD_TEXT(card
, 2, "cldevsubm");
103 queue_work(qeth_wq
, &card
->close_dev_work
);
105 EXPORT_SYMBOL_GPL(qeth_close_dev
);
107 static const char *qeth_get_cardname(struct qeth_card
*card
)
109 if (card
->info
.guestlan
) {
110 switch (card
->info
.type
) {
111 case QETH_CARD_TYPE_OSD
:
112 return " Virtual NIC QDIO";
113 case QETH_CARD_TYPE_IQD
:
114 return " Virtual NIC Hiper";
115 case QETH_CARD_TYPE_OSM
:
116 return " Virtual NIC QDIO - OSM";
117 case QETH_CARD_TYPE_OSX
:
118 return " Virtual NIC QDIO - OSX";
123 switch (card
->info
.type
) {
124 case QETH_CARD_TYPE_OSD
:
125 return " OSD Express";
126 case QETH_CARD_TYPE_IQD
:
127 return " HiperSockets";
128 case QETH_CARD_TYPE_OSN
:
130 case QETH_CARD_TYPE_OSM
:
132 case QETH_CARD_TYPE_OSX
:
141 /* max length to be returned: 14 */
142 const char *qeth_get_cardname_short(struct qeth_card
*card
)
144 if (card
->info
.guestlan
) {
145 switch (card
->info
.type
) {
146 case QETH_CARD_TYPE_OSD
:
147 return "Virt.NIC QDIO";
148 case QETH_CARD_TYPE_IQD
:
149 return "Virt.NIC Hiper";
150 case QETH_CARD_TYPE_OSM
:
151 return "Virt.NIC OSM";
152 case QETH_CARD_TYPE_OSX
:
153 return "Virt.NIC OSX";
158 switch (card
->info
.type
) {
159 case QETH_CARD_TYPE_OSD
:
160 switch (card
->info
.link_type
) {
161 case QETH_LINK_TYPE_FAST_ETH
:
163 case QETH_LINK_TYPE_HSTR
:
165 case QETH_LINK_TYPE_GBIT_ETH
:
167 case QETH_LINK_TYPE_10GBIT_ETH
:
169 case QETH_LINK_TYPE_LANE_ETH100
:
170 return "OSD_FE_LANE";
171 case QETH_LINK_TYPE_LANE_TR
:
172 return "OSD_TR_LANE";
173 case QETH_LINK_TYPE_LANE_ETH1000
:
174 return "OSD_GbE_LANE";
175 case QETH_LINK_TYPE_LANE
:
176 return "OSD_ATM_LANE";
178 return "OSD_Express";
180 case QETH_CARD_TYPE_IQD
:
181 return "HiperSockets";
182 case QETH_CARD_TYPE_OSN
:
184 case QETH_CARD_TYPE_OSM
:
186 case QETH_CARD_TYPE_OSX
:
195 void qeth_set_recovery_task(struct qeth_card
*card
)
197 card
->recovery_task
= current
;
199 EXPORT_SYMBOL_GPL(qeth_set_recovery_task
);
201 void qeth_clear_recovery_task(struct qeth_card
*card
)
203 card
->recovery_task
= NULL
;
205 EXPORT_SYMBOL_GPL(qeth_clear_recovery_task
);
207 static bool qeth_is_recovery_task(const struct qeth_card
*card
)
209 return card
->recovery_task
== current
;
212 void qeth_set_allowed_threads(struct qeth_card
*card
, unsigned long threads
,
213 int clear_start_mask
)
217 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
218 card
->thread_allowed_mask
= threads
;
219 if (clear_start_mask
)
220 card
->thread_start_mask
&= threads
;
221 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
222 wake_up(&card
->wait_q
);
224 EXPORT_SYMBOL_GPL(qeth_set_allowed_threads
);
226 int qeth_threads_running(struct qeth_card
*card
, unsigned long threads
)
231 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
232 rc
= (card
->thread_running_mask
& threads
);
233 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
236 EXPORT_SYMBOL_GPL(qeth_threads_running
);
238 int qeth_wait_for_threads(struct qeth_card
*card
, unsigned long threads
)
240 if (qeth_is_recovery_task(card
))
242 return wait_event_interruptible(card
->wait_q
,
243 qeth_threads_running(card
, threads
) == 0);
245 EXPORT_SYMBOL_GPL(qeth_wait_for_threads
);
247 void qeth_clear_working_pool_list(struct qeth_card
*card
)
249 struct qeth_buffer_pool_entry
*pool_entry
, *tmp
;
251 QETH_CARD_TEXT(card
, 5, "clwrklst");
252 list_for_each_entry_safe(pool_entry
, tmp
,
253 &card
->qdio
.in_buf_pool
.entry_list
, list
){
254 list_del(&pool_entry
->list
);
257 EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list
);
259 static int qeth_alloc_buffer_pool(struct qeth_card
*card
)
261 struct qeth_buffer_pool_entry
*pool_entry
;
265 QETH_CARD_TEXT(card
, 5, "alocpool");
266 for (i
= 0; i
< card
->qdio
.init_pool
.buf_count
; ++i
) {
267 pool_entry
= kzalloc(sizeof(*pool_entry
), GFP_KERNEL
);
269 qeth_free_buffer_pool(card
);
272 for (j
= 0; j
< QETH_MAX_BUFFER_ELEMENTS(card
); ++j
) {
273 ptr
= (void *) __get_free_page(GFP_KERNEL
);
276 free_page((unsigned long)
277 pool_entry
->elements
[--j
]);
279 qeth_free_buffer_pool(card
);
282 pool_entry
->elements
[j
] = ptr
;
284 list_add(&pool_entry
->init_list
,
285 &card
->qdio
.init_pool
.entry_list
);
290 int qeth_realloc_buffer_pool(struct qeth_card
*card
, int bufcnt
)
292 QETH_CARD_TEXT(card
, 2, "realcbp");
294 if ((card
->state
!= CARD_STATE_DOWN
) &&
295 (card
->state
!= CARD_STATE_RECOVER
))
298 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
299 qeth_clear_working_pool_list(card
);
300 qeth_free_buffer_pool(card
);
301 card
->qdio
.in_buf_pool
.buf_count
= bufcnt
;
302 card
->qdio
.init_pool
.buf_count
= bufcnt
;
303 return qeth_alloc_buffer_pool(card
);
305 EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool
);
307 static void qeth_free_qdio_queue(struct qeth_qdio_q
*q
)
312 qdio_free_buffers(q
->qdio_bufs
, QDIO_MAX_BUFFERS_PER_Q
);
316 static struct qeth_qdio_q
*qeth_alloc_qdio_queue(void)
318 struct qeth_qdio_q
*q
= kzalloc(sizeof(*q
), GFP_KERNEL
);
324 if (qdio_alloc_buffers(q
->qdio_bufs
, QDIO_MAX_BUFFERS_PER_Q
)) {
329 for (i
= 0; i
< QDIO_MAX_BUFFERS_PER_Q
; ++i
)
330 q
->bufs
[i
].buffer
= q
->qdio_bufs
[i
];
332 QETH_DBF_HEX(SETUP
, 2, &q
, sizeof(void *));
336 static int qeth_cq_init(struct qeth_card
*card
)
340 if (card
->options
.cq
== QETH_CQ_ENABLED
) {
341 QETH_DBF_TEXT(SETUP
, 2, "cqinit");
342 qdio_reset_buffers(card
->qdio
.c_q
->qdio_bufs
,
343 QDIO_MAX_BUFFERS_PER_Q
);
344 card
->qdio
.c_q
->next_buf_to_init
= 127;
345 rc
= do_QDIO(CARD_DDEV(card
), QDIO_FLAG_SYNC_INPUT
,
346 card
->qdio
.no_in_queues
- 1, 0,
349 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
358 static int qeth_alloc_cq(struct qeth_card
*card
)
362 if (card
->options
.cq
== QETH_CQ_ENABLED
) {
364 struct qdio_outbuf_state
*outbuf_states
;
366 QETH_DBF_TEXT(SETUP
, 2, "cqon");
367 card
->qdio
.c_q
= qeth_alloc_qdio_queue();
368 if (!card
->qdio
.c_q
) {
372 card
->qdio
.no_in_queues
= 2;
373 card
->qdio
.out_bufstates
=
374 kcalloc(card
->qdio
.no_out_queues
*
375 QDIO_MAX_BUFFERS_PER_Q
,
376 sizeof(struct qdio_outbuf_state
),
378 outbuf_states
= card
->qdio
.out_bufstates
;
379 if (outbuf_states
== NULL
) {
383 for (i
= 0; i
< card
->qdio
.no_out_queues
; ++i
) {
384 card
->qdio
.out_qs
[i
]->bufstates
= outbuf_states
;
385 outbuf_states
+= QDIO_MAX_BUFFERS_PER_Q
;
388 QETH_DBF_TEXT(SETUP
, 2, "nocq");
389 card
->qdio
.c_q
= NULL
;
390 card
->qdio
.no_in_queues
= 1;
392 QETH_DBF_TEXT_(SETUP
, 2, "iqc%d", card
->qdio
.no_in_queues
);
397 qeth_free_qdio_queue(card
->qdio
.c_q
);
398 card
->qdio
.c_q
= NULL
;
400 dev_err(&card
->gdev
->dev
, "Failed to create completion queue\n");
404 static void qeth_free_cq(struct qeth_card
*card
)
406 if (card
->qdio
.c_q
) {
407 --card
->qdio
.no_in_queues
;
408 qeth_free_qdio_queue(card
->qdio
.c_q
);
409 card
->qdio
.c_q
= NULL
;
411 kfree(card
->qdio
.out_bufstates
);
412 card
->qdio
.out_bufstates
= NULL
;
415 static enum iucv_tx_notify
qeth_compute_cq_notification(int sbalf15
,
418 enum iucv_tx_notify n
;
422 n
= delayed
? TX_NOTIFY_DELAYED_OK
: TX_NOTIFY_OK
;
428 n
= delayed
? TX_NOTIFY_DELAYED_UNREACHABLE
:
429 TX_NOTIFY_UNREACHABLE
;
432 n
= delayed
? TX_NOTIFY_DELAYED_GENERALERROR
:
433 TX_NOTIFY_GENERALERROR
;
440 static void qeth_cleanup_handled_pending(struct qeth_qdio_out_q
*q
, int bidx
,
443 if (q
->card
->options
.cq
!= QETH_CQ_ENABLED
)
446 if (q
->bufs
[bidx
]->next_pending
!= NULL
) {
447 struct qeth_qdio_out_buffer
*head
= q
->bufs
[bidx
];
448 struct qeth_qdio_out_buffer
*c
= q
->bufs
[bidx
]->next_pending
;
451 if (forced_cleanup
||
452 atomic_read(&c
->state
) ==
453 QETH_QDIO_BUF_HANDLED_DELAYED
) {
454 struct qeth_qdio_out_buffer
*f
= c
;
455 QETH_CARD_TEXT(f
->q
->card
, 5, "fp");
456 QETH_CARD_TEXT_(f
->q
->card
, 5, "%lx", (long) f
);
457 /* release here to avoid interleaving between
458 outbound tasklet and inbound tasklet
459 regarding notifications and lifecycle */
460 qeth_release_skbs(c
);
463 WARN_ON_ONCE(head
->next_pending
!= f
);
464 head
->next_pending
= c
;
465 kmem_cache_free(qeth_qdio_outbuf_cache
, f
);
473 if (forced_cleanup
&& (atomic_read(&(q
->bufs
[bidx
]->state
)) ==
474 QETH_QDIO_BUF_HANDLED_DELAYED
)) {
475 /* for recovery situations */
476 qeth_init_qdio_out_buf(q
, bidx
);
477 QETH_CARD_TEXT(q
->card
, 2, "clprecov");
482 static void qeth_qdio_handle_aob(struct qeth_card
*card
,
483 unsigned long phys_aob_addr
)
486 struct qeth_qdio_out_buffer
*buffer
;
487 enum iucv_tx_notify notification
;
490 aob
= (struct qaob
*) phys_to_virt(phys_aob_addr
);
491 QETH_CARD_TEXT(card
, 5, "haob");
492 QETH_CARD_TEXT_(card
, 5, "%lx", phys_aob_addr
);
493 buffer
= (struct qeth_qdio_out_buffer
*) aob
->user1
;
494 QETH_CARD_TEXT_(card
, 5, "%lx", aob
->user1
);
496 if (atomic_cmpxchg(&buffer
->state
, QETH_QDIO_BUF_PRIMED
,
497 QETH_QDIO_BUF_IN_CQ
) == QETH_QDIO_BUF_PRIMED
) {
498 notification
= TX_NOTIFY_OK
;
500 WARN_ON_ONCE(atomic_read(&buffer
->state
) !=
501 QETH_QDIO_BUF_PENDING
);
502 atomic_set(&buffer
->state
, QETH_QDIO_BUF_IN_CQ
);
503 notification
= TX_NOTIFY_DELAYED_OK
;
506 if (aob
->aorc
!= 0) {
507 QETH_CARD_TEXT_(card
, 2, "aorc%02X", aob
->aorc
);
508 notification
= qeth_compute_cq_notification(aob
->aorc
, 1);
510 qeth_notify_skbs(buffer
->q
, buffer
, notification
);
512 /* Free dangling allocations. The attached skbs are handled by
513 * qeth_cleanup_handled_pending().
516 i
< aob
->sb_count
&& i
< QETH_MAX_BUFFER_ELEMENTS(card
);
518 if (aob
->sba
[i
] && buffer
->is_header
[i
])
519 kmem_cache_free(qeth_core_header_cache
,
520 (void *) aob
->sba
[i
]);
522 atomic_set(&buffer
->state
, QETH_QDIO_BUF_HANDLED_DELAYED
);
524 qdio_release_aob(aob
);
527 static inline int qeth_is_cq(struct qeth_card
*card
, unsigned int queue
)
529 return card
->options
.cq
== QETH_CQ_ENABLED
&&
530 card
->qdio
.c_q
!= NULL
&&
532 queue
== card
->qdio
.no_in_queues
- 1;
535 static void qeth_setup_ccw(struct ccw1
*ccw
, u8 cmd_code
, u32 len
, void *data
)
537 ccw
->cmd_code
= cmd_code
;
538 ccw
->flags
= CCW_FLAG_SLI
;
540 ccw
->cda
= (__u32
) __pa(data
);
543 static int __qeth_issue_next_read(struct qeth_card
*card
)
545 struct qeth_channel
*channel
= &card
->read
;
546 struct qeth_cmd_buffer
*iob
;
549 QETH_CARD_TEXT(card
, 5, "issnxrd");
550 if (channel
->state
!= CH_STATE_UP
)
552 iob
= qeth_get_buffer(channel
);
554 dev_warn(&card
->gdev
->dev
, "The qeth device driver "
555 "failed to recover an error on the device\n");
556 QETH_DBF_MESSAGE(2, "%s issue_next_read failed: no iob "
557 "available\n", dev_name(&card
->gdev
->dev
));
560 qeth_setup_ccw(channel
->ccw
, CCW_CMD_READ
, QETH_BUFSIZE
, iob
->data
);
561 QETH_CARD_TEXT(card
, 6, "noirqpnd");
562 rc
= ccw_device_start(channel
->ccwdev
, channel
->ccw
,
565 QETH_DBF_MESSAGE(2, "%s error in starting next read ccw! "
566 "rc=%i\n", dev_name(&card
->gdev
->dev
), rc
);
567 atomic_set(&channel
->irq_pending
, 0);
568 card
->read_or_write_problem
= 1;
569 qeth_schedule_recovery(card
);
570 wake_up(&card
->wait_q
);
575 static int qeth_issue_next_read(struct qeth_card
*card
)
579 spin_lock_irq(get_ccwdev_lock(CARD_RDEV(card
)));
580 ret
= __qeth_issue_next_read(card
);
581 spin_unlock_irq(get_ccwdev_lock(CARD_RDEV(card
)));
586 static struct qeth_reply
*qeth_alloc_reply(struct qeth_card
*card
)
588 struct qeth_reply
*reply
;
590 reply
= kzalloc(sizeof(struct qeth_reply
), GFP_ATOMIC
);
592 refcount_set(&reply
->refcnt
, 1);
593 atomic_set(&reply
->received
, 0);
599 static void qeth_get_reply(struct qeth_reply
*reply
)
601 refcount_inc(&reply
->refcnt
);
604 static void qeth_put_reply(struct qeth_reply
*reply
)
606 if (refcount_dec_and_test(&reply
->refcnt
))
610 static void qeth_issue_ipa_msg(struct qeth_ipa_cmd
*cmd
, int rc
,
611 struct qeth_card
*card
)
613 const char *ipa_name
;
614 int com
= cmd
->hdr
.command
;
615 ipa_name
= qeth_get_ipa_cmd_name(com
);
617 QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s/%s returned "
619 ipa_name
, com
, dev_name(&card
->gdev
->dev
),
620 QETH_CARD_IFNAME(card
), rc
,
621 qeth_get_ipa_msg(rc
));
623 QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s/%s succeeded\n",
624 ipa_name
, com
, dev_name(&card
->gdev
->dev
),
625 QETH_CARD_IFNAME(card
));
628 static struct qeth_ipa_cmd
*qeth_check_ipa_data(struct qeth_card
*card
,
629 struct qeth_cmd_buffer
*iob
)
631 struct qeth_ipa_cmd
*cmd
= NULL
;
633 QETH_CARD_TEXT(card
, 5, "chkipad");
634 if (IS_IPA(iob
->data
)) {
635 cmd
= (struct qeth_ipa_cmd
*) PDU_ENCAPSULATION(iob
->data
);
636 if (IS_IPA_REPLY(cmd
)) {
637 if (cmd
->hdr
.command
!= IPA_CMD_SETCCID
&&
638 cmd
->hdr
.command
!= IPA_CMD_DELCCID
&&
639 cmd
->hdr
.command
!= IPA_CMD_MODCCID
&&
640 cmd
->hdr
.command
!= IPA_CMD_SET_DIAG_ASS
)
641 qeth_issue_ipa_msg(cmd
,
642 cmd
->hdr
.return_code
, card
);
645 switch (cmd
->hdr
.command
) {
646 case IPA_CMD_STOPLAN
:
647 if (cmd
->hdr
.return_code
==
648 IPA_RC_VEPA_TO_VEB_TRANSITION
) {
649 dev_err(&card
->gdev
->dev
,
650 "Interface %s is down because the "
651 "adjacent port is no longer in "
652 "reflective relay mode\n",
653 QETH_CARD_IFNAME(card
));
654 qeth_close_dev(card
);
656 dev_warn(&card
->gdev
->dev
,
657 "The link for interface %s on CHPID"
659 QETH_CARD_IFNAME(card
),
661 qeth_issue_ipa_msg(cmd
,
662 cmd
->hdr
.return_code
, card
);
664 card
->lan_online
= 0;
665 netif_carrier_off(card
->dev
);
667 case IPA_CMD_STARTLAN
:
668 dev_info(&card
->gdev
->dev
,
669 "The link for %s on CHPID 0x%X has"
671 QETH_CARD_IFNAME(card
),
673 netif_carrier_on(card
->dev
);
674 card
->lan_online
= 1;
675 if (card
->info
.hwtrap
)
676 card
->info
.hwtrap
= 2;
677 qeth_schedule_recovery(card
);
679 case IPA_CMD_SETBRIDGEPORT_IQD
:
680 case IPA_CMD_SETBRIDGEPORT_OSA
:
681 case IPA_CMD_ADDRESS_CHANGE_NOTIF
:
682 if (card
->discipline
->control_event_handler
687 case IPA_CMD_MODCCID
:
689 case IPA_CMD_REGISTER_LOCAL_ADDR
:
690 QETH_CARD_TEXT(card
, 3, "irla");
692 case IPA_CMD_UNREGISTER_LOCAL_ADDR
:
693 QETH_CARD_TEXT(card
, 3, "urla");
696 QETH_DBF_MESSAGE(2, "Received data is IPA "
697 "but not a reply!\n");
705 void qeth_clear_ipacmd_list(struct qeth_card
*card
)
707 struct qeth_reply
*reply
, *r
;
710 QETH_CARD_TEXT(card
, 4, "clipalst");
712 spin_lock_irqsave(&card
->lock
, flags
);
713 list_for_each_entry_safe(reply
, r
, &card
->cmd_waiter_list
, list
) {
714 qeth_get_reply(reply
);
716 atomic_inc(&reply
->received
);
717 list_del_init(&reply
->list
);
718 wake_up(&reply
->wait_q
);
719 qeth_put_reply(reply
);
721 spin_unlock_irqrestore(&card
->lock
, flags
);
723 EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list
);
725 static int qeth_check_idx_response(struct qeth_card
*card
,
726 unsigned char *buffer
)
731 QETH_DBF_HEX(CTRL
, 2, buffer
, QETH_DBF_CTRL_LEN
);
732 if ((buffer
[2] & 0xc0) == 0xc0) {
733 QETH_DBF_MESSAGE(2, "received an IDX TERMINATE with cause code %#02x\n",
735 QETH_CARD_TEXT(card
, 2, "ckidxres");
736 QETH_CARD_TEXT(card
, 2, " idxterm");
737 QETH_CARD_TEXT_(card
, 2, " rc%d", -EIO
);
738 if (buffer
[4] == 0xf6) {
739 dev_err(&card
->gdev
->dev
,
740 "The qeth device is not configured "
741 "for the OSI layer required by z/VM\n");
749 static struct qeth_card
*CARD_FROM_CDEV(struct ccw_device
*cdev
)
751 struct qeth_card
*card
= dev_get_drvdata(&((struct ccwgroup_device
*)
752 dev_get_drvdata(&cdev
->dev
))->dev
);
756 static struct qeth_cmd_buffer
*__qeth_get_buffer(struct qeth_channel
*channel
)
760 QETH_CARD_TEXT(CARD_FROM_CDEV(channel
->ccwdev
), 6, "getbuff");
761 index
= channel
->io_buf_no
;
763 if (channel
->iob
[index
].state
== BUF_STATE_FREE
) {
764 channel
->iob
[index
].state
= BUF_STATE_LOCKED
;
765 channel
->io_buf_no
= (channel
->io_buf_no
+ 1) %
767 memset(channel
->iob
[index
].data
, 0, QETH_BUFSIZE
);
768 return channel
->iob
+ index
;
770 index
= (index
+ 1) % QETH_CMD_BUFFER_NO
;
771 } while (index
!= channel
->io_buf_no
);
776 void qeth_release_buffer(struct qeth_channel
*channel
,
777 struct qeth_cmd_buffer
*iob
)
781 QETH_CARD_TEXT(CARD_FROM_CDEV(channel
->ccwdev
), 6, "relbuff");
782 spin_lock_irqsave(&channel
->iob_lock
, flags
);
783 memset(iob
->data
, 0, QETH_BUFSIZE
);
784 iob
->state
= BUF_STATE_FREE
;
785 iob
->callback
= qeth_send_control_data_cb
;
787 spin_unlock_irqrestore(&channel
->iob_lock
, flags
);
788 wake_up(&channel
->wait_q
);
790 EXPORT_SYMBOL_GPL(qeth_release_buffer
);
792 static struct qeth_cmd_buffer
*qeth_get_buffer(struct qeth_channel
*channel
)
794 struct qeth_cmd_buffer
*buffer
= NULL
;
797 spin_lock_irqsave(&channel
->iob_lock
, flags
);
798 buffer
= __qeth_get_buffer(channel
);
799 spin_unlock_irqrestore(&channel
->iob_lock
, flags
);
803 struct qeth_cmd_buffer
*qeth_wait_for_buffer(struct qeth_channel
*channel
)
805 struct qeth_cmd_buffer
*buffer
;
806 wait_event(channel
->wait_q
,
807 ((buffer
= qeth_get_buffer(channel
)) != NULL
));
810 EXPORT_SYMBOL_GPL(qeth_wait_for_buffer
);
812 void qeth_clear_cmd_buffers(struct qeth_channel
*channel
)
816 for (cnt
= 0; cnt
< QETH_CMD_BUFFER_NO
; cnt
++)
817 qeth_release_buffer(channel
, &channel
->iob
[cnt
]);
818 channel
->io_buf_no
= 0;
820 EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers
);
822 static void qeth_send_control_data_cb(struct qeth_channel
*channel
,
823 struct qeth_cmd_buffer
*iob
)
825 struct qeth_card
*card
;
826 struct qeth_reply
*reply
, *r
;
827 struct qeth_ipa_cmd
*cmd
;
832 card
= CARD_FROM_CDEV(channel
->ccwdev
);
833 QETH_CARD_TEXT(card
, 4, "sndctlcb");
834 rc
= qeth_check_idx_response(card
, iob
->data
);
839 qeth_clear_ipacmd_list(card
);
840 qeth_schedule_recovery(card
);
846 cmd
= qeth_check_ipa_data(card
, iob
);
847 if ((cmd
== NULL
) && (card
->state
!= CARD_STATE_DOWN
))
849 /*in case of OSN : check if cmd is set */
850 if (card
->info
.type
== QETH_CARD_TYPE_OSN
&&
852 cmd
->hdr
.command
!= IPA_CMD_STARTLAN
&&
853 card
->osn_info
.assist_cb
!= NULL
) {
854 card
->osn_info
.assist_cb(card
->dev
, cmd
);
858 spin_lock_irqsave(&card
->lock
, flags
);
859 list_for_each_entry_safe(reply
, r
, &card
->cmd_waiter_list
, list
) {
860 if ((reply
->seqno
== QETH_IDX_COMMAND_SEQNO
) ||
861 ((cmd
) && (reply
->seqno
== cmd
->hdr
.seqno
))) {
862 qeth_get_reply(reply
);
863 list_del_init(&reply
->list
);
864 spin_unlock_irqrestore(&card
->lock
, flags
);
866 if (reply
->callback
!= NULL
) {
868 reply
->offset
= (__u16
)((char *)cmd
-
870 keep_reply
= reply
->callback(card
,
874 keep_reply
= reply
->callback(card
,
879 reply
->rc
= (u16
) cmd
->hdr
.return_code
;
883 spin_lock_irqsave(&card
->lock
, flags
);
884 list_add_tail(&reply
->list
,
885 &card
->cmd_waiter_list
);
886 spin_unlock_irqrestore(&card
->lock
, flags
);
888 atomic_inc(&reply
->received
);
889 wake_up(&reply
->wait_q
);
891 qeth_put_reply(reply
);
895 spin_unlock_irqrestore(&card
->lock
, flags
);
897 memcpy(&card
->seqno
.pdu_hdr_ack
,
898 QETH_PDU_HEADER_SEQ_NO(iob
->data
),
900 qeth_release_buffer(channel
, iob
);
903 static int qeth_setup_channel(struct qeth_channel
*channel
, bool alloc_buffers
)
907 QETH_DBF_TEXT(SETUP
, 2, "setupch");
909 channel
->ccw
= kmalloc(sizeof(struct ccw1
), GFP_KERNEL
| GFP_DMA
);
912 channel
->state
= CH_STATE_DOWN
;
913 atomic_set(&channel
->irq_pending
, 0);
914 init_waitqueue_head(&channel
->wait_q
);
919 for (cnt
= 0; cnt
< QETH_CMD_BUFFER_NO
; cnt
++) {
920 channel
->iob
[cnt
].data
=
921 kzalloc(QETH_BUFSIZE
, GFP_DMA
|GFP_KERNEL
);
922 if (channel
->iob
[cnt
].data
== NULL
)
924 channel
->iob
[cnt
].state
= BUF_STATE_FREE
;
925 channel
->iob
[cnt
].channel
= channel
;
926 channel
->iob
[cnt
].callback
= qeth_send_control_data_cb
;
927 channel
->iob
[cnt
].rc
= 0;
929 if (cnt
< QETH_CMD_BUFFER_NO
) {
932 kfree(channel
->iob
[cnt
].data
);
935 channel
->io_buf_no
= 0;
936 spin_lock_init(&channel
->iob_lock
);
941 static int qeth_set_thread_start_bit(struct qeth_card
*card
,
942 unsigned long thread
)
946 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
947 if (!(card
->thread_allowed_mask
& thread
) ||
948 (card
->thread_start_mask
& thread
)) {
949 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
952 card
->thread_start_mask
|= thread
;
953 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
957 void qeth_clear_thread_start_bit(struct qeth_card
*card
, unsigned long thread
)
961 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
962 card
->thread_start_mask
&= ~thread
;
963 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
964 wake_up(&card
->wait_q
);
966 EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit
);
968 void qeth_clear_thread_running_bit(struct qeth_card
*card
, unsigned long thread
)
972 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
973 card
->thread_running_mask
&= ~thread
;
974 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
975 wake_up_all(&card
->wait_q
);
977 EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit
);
979 static int __qeth_do_run_thread(struct qeth_card
*card
, unsigned long thread
)
984 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
985 if (card
->thread_start_mask
& thread
) {
986 if ((card
->thread_allowed_mask
& thread
) &&
987 !(card
->thread_running_mask
& thread
)) {
989 card
->thread_start_mask
&= ~thread
;
990 card
->thread_running_mask
|= thread
;
994 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
998 int qeth_do_run_thread(struct qeth_card
*card
, unsigned long thread
)
1002 wait_event(card
->wait_q
,
1003 (rc
= __qeth_do_run_thread(card
, thread
)) >= 0);
1006 EXPORT_SYMBOL_GPL(qeth_do_run_thread
);
1008 void qeth_schedule_recovery(struct qeth_card
*card
)
1010 QETH_CARD_TEXT(card
, 2, "startrec");
1011 if (qeth_set_thread_start_bit(card
, QETH_RECOVER_THREAD
) == 0)
1012 schedule_work(&card
->kernel_thread_starter
);
1014 EXPORT_SYMBOL_GPL(qeth_schedule_recovery
);
1016 static int qeth_get_problem(struct ccw_device
*cdev
, struct irb
*irb
)
1020 struct qeth_card
*card
;
1022 sense
= (char *) irb
->ecw
;
1023 cstat
= irb
->scsw
.cmd
.cstat
;
1024 dstat
= irb
->scsw
.cmd
.dstat
;
1025 card
= CARD_FROM_CDEV(cdev
);
1027 if (cstat
& (SCHN_STAT_CHN_CTRL_CHK
| SCHN_STAT_INTF_CTRL_CHK
|
1028 SCHN_STAT_CHN_DATA_CHK
| SCHN_STAT_CHAIN_CHECK
|
1029 SCHN_STAT_PROT_CHECK
| SCHN_STAT_PROG_CHECK
)) {
1030 QETH_CARD_TEXT(card
, 2, "CGENCHK");
1031 dev_warn(&cdev
->dev
, "The qeth device driver "
1032 "failed to recover an error on the device\n");
1033 QETH_DBF_MESSAGE(2, "%s check on device dstat=x%x, cstat=x%x\n",
1034 dev_name(&cdev
->dev
), dstat
, cstat
);
1035 print_hex_dump(KERN_WARNING
, "qeth: irb ", DUMP_PREFIX_OFFSET
,
1040 if (dstat
& DEV_STAT_UNIT_CHECK
) {
1041 if (sense
[SENSE_RESETTING_EVENT_BYTE
] &
1042 SENSE_RESETTING_EVENT_FLAG
) {
1043 QETH_CARD_TEXT(card
, 2, "REVIND");
1046 if (sense
[SENSE_COMMAND_REJECT_BYTE
] &
1047 SENSE_COMMAND_REJECT_FLAG
) {
1048 QETH_CARD_TEXT(card
, 2, "CMDREJi");
1051 if ((sense
[2] == 0xaf) && (sense
[3] == 0xfe)) {
1052 QETH_CARD_TEXT(card
, 2, "AFFE");
1055 if ((!sense
[0]) && (!sense
[1]) && (!sense
[2]) && (!sense
[3])) {
1056 QETH_CARD_TEXT(card
, 2, "ZEROSEN");
1059 QETH_CARD_TEXT(card
, 2, "DGENCHK");
1065 static long __qeth_check_irb_error(struct ccw_device
*cdev
,
1066 unsigned long intparm
, struct irb
*irb
)
1068 struct qeth_card
*card
;
1070 card
= CARD_FROM_CDEV(cdev
);
1072 if (!card
|| !IS_ERR(irb
))
1075 switch (PTR_ERR(irb
)) {
1077 QETH_DBF_MESSAGE(2, "%s i/o-error on device\n",
1078 dev_name(&cdev
->dev
));
1079 QETH_CARD_TEXT(card
, 2, "ckirberr");
1080 QETH_CARD_TEXT_(card
, 2, " rc%d", -EIO
);
1083 dev_warn(&cdev
->dev
, "A hardware operation timed out"
1084 " on the device\n");
1085 QETH_CARD_TEXT(card
, 2, "ckirberr");
1086 QETH_CARD_TEXT_(card
, 2, " rc%d", -ETIMEDOUT
);
1087 if (intparm
== QETH_RCD_PARM
) {
1088 if (card
->data
.ccwdev
== cdev
) {
1089 card
->data
.state
= CH_STATE_DOWN
;
1090 wake_up(&card
->wait_q
);
1095 QETH_DBF_MESSAGE(2, "%s unknown error %ld on device\n",
1096 dev_name(&cdev
->dev
), PTR_ERR(irb
));
1097 QETH_CARD_TEXT(card
, 2, "ckirberr");
1098 QETH_CARD_TEXT(card
, 2, " rc???");
1100 return PTR_ERR(irb
);
1103 static void qeth_irq(struct ccw_device
*cdev
, unsigned long intparm
,
1108 struct qeth_cmd_buffer
*iob
= NULL
;
1109 struct qeth_channel
*channel
;
1110 struct qeth_card
*card
;
1112 card
= CARD_FROM_CDEV(cdev
);
1116 QETH_CARD_TEXT(card
, 5, "irq");
1118 if (card
->read
.ccwdev
== cdev
) {
1119 channel
= &card
->read
;
1120 QETH_CARD_TEXT(card
, 5, "read");
1121 } else if (card
->write
.ccwdev
== cdev
) {
1122 channel
= &card
->write
;
1123 QETH_CARD_TEXT(card
, 5, "write");
1125 channel
= &card
->data
;
1126 QETH_CARD_TEXT(card
, 5, "data");
1129 if (qeth_intparm_is_iob(intparm
))
1130 iob
= (struct qeth_cmd_buffer
*) __va((addr_t
)intparm
);
1132 if (__qeth_check_irb_error(cdev
, intparm
, irb
)) {
1133 /* IO was terminated, free its resources. */
1135 qeth_release_buffer(iob
->channel
, iob
);
1136 atomic_set(&channel
->irq_pending
, 0);
1137 wake_up(&card
->wait_q
);
1141 atomic_set(&channel
->irq_pending
, 0);
1143 if (irb
->scsw
.cmd
.fctl
& (SCSW_FCTL_CLEAR_FUNC
))
1144 channel
->state
= CH_STATE_STOPPED
;
1146 if (irb
->scsw
.cmd
.fctl
& (SCSW_FCTL_HALT_FUNC
))
1147 channel
->state
= CH_STATE_HALTED
;
1149 /*let's wake up immediately on data channel*/
1150 if ((channel
== &card
->data
) && (intparm
!= 0) &&
1151 (intparm
!= QETH_RCD_PARM
))
1154 if (intparm
== QETH_CLEAR_CHANNEL_PARM
) {
1155 QETH_CARD_TEXT(card
, 6, "clrchpar");
1156 /* we don't have to handle this further */
1159 if (intparm
== QETH_HALT_CHANNEL_PARM
) {
1160 QETH_CARD_TEXT(card
, 6, "hltchpar");
1161 /* we don't have to handle this further */
1165 cstat
= irb
->scsw
.cmd
.cstat
;
1166 dstat
= irb
->scsw
.cmd
.dstat
;
1168 if ((dstat
& DEV_STAT_UNIT_EXCEP
) ||
1169 (dstat
& DEV_STAT_UNIT_CHECK
) ||
1171 if (irb
->esw
.esw0
.erw
.cons
) {
1172 dev_warn(&channel
->ccwdev
->dev
,
1173 "The qeth device driver failed to recover "
1174 "an error on the device\n");
1175 QETH_DBF_MESSAGE(2, "%s sense data available. cstat "
1176 "0x%X dstat 0x%X\n",
1177 dev_name(&channel
->ccwdev
->dev
), cstat
, dstat
);
1178 print_hex_dump(KERN_WARNING
, "qeth: irb ",
1179 DUMP_PREFIX_OFFSET
, 16, 1, irb
, 32, 1);
1180 print_hex_dump(KERN_WARNING
, "qeth: sense data ",
1181 DUMP_PREFIX_OFFSET
, 16, 1, irb
->ecw
, 32, 1);
1183 if (intparm
== QETH_RCD_PARM
) {
1184 channel
->state
= CH_STATE_DOWN
;
1187 rc
= qeth_get_problem(cdev
, irb
);
1189 card
->read_or_write_problem
= 1;
1190 qeth_clear_ipacmd_list(card
);
1191 qeth_schedule_recovery(card
);
1196 if (intparm
== QETH_RCD_PARM
) {
1197 channel
->state
= CH_STATE_RCD_DONE
;
1200 if (channel
== &card
->data
)
1202 if (channel
== &card
->read
&&
1203 channel
->state
== CH_STATE_UP
)
1204 __qeth_issue_next_read(card
);
1206 if (iob
&& iob
->callback
)
1207 iob
->callback(iob
->channel
, iob
);
1210 wake_up(&card
->wait_q
);
1214 static void qeth_notify_skbs(struct qeth_qdio_out_q
*q
,
1215 struct qeth_qdio_out_buffer
*buf
,
1216 enum iucv_tx_notify notification
)
1218 struct sk_buff
*skb
;
1220 if (skb_queue_empty(&buf
->skb_list
))
1222 skb
= skb_peek(&buf
->skb_list
);
1224 QETH_CARD_TEXT_(q
->card
, 5, "skbn%d", notification
);
1225 QETH_CARD_TEXT_(q
->card
, 5, "%lx", (long) skb
);
1226 if (be16_to_cpu(skb
->protocol
) == ETH_P_AF_IUCV
) {
1228 struct iucv_sock
*iucv
= iucv_sk(skb
->sk
);
1229 iucv
->sk_txnotify(skb
, notification
);
1232 if (skb_queue_is_last(&buf
->skb_list
, skb
))
1235 skb
= skb_queue_next(&buf
->skb_list
, skb
);
1241 static void qeth_release_skbs(struct qeth_qdio_out_buffer
*buf
)
1243 struct sk_buff
*skb
;
1244 struct iucv_sock
*iucv
;
1245 int notify_general_error
= 0;
1247 if (atomic_read(&buf
->state
) == QETH_QDIO_BUF_PENDING
)
1248 notify_general_error
= 1;
1250 /* release may never happen from within CQ tasklet scope */
1251 WARN_ON_ONCE(atomic_read(&buf
->state
) == QETH_QDIO_BUF_IN_CQ
);
1253 skb
= skb_dequeue(&buf
->skb_list
);
1255 QETH_CARD_TEXT(buf
->q
->card
, 5, "skbr");
1256 QETH_CARD_TEXT_(buf
->q
->card
, 5, "%lx", (long) skb
);
1257 if (notify_general_error
&&
1258 be16_to_cpu(skb
->protocol
) == ETH_P_AF_IUCV
) {
1260 iucv
= iucv_sk(skb
->sk
);
1261 iucv
->sk_txnotify(skb
, TX_NOTIFY_GENERALERROR
);
1264 refcount_dec(&skb
->users
);
1265 dev_kfree_skb_any(skb
);
1266 skb
= skb_dequeue(&buf
->skb_list
);
1270 static void qeth_clear_output_buffer(struct qeth_qdio_out_q
*queue
,
1271 struct qeth_qdio_out_buffer
*buf
)
1275 /* is PCI flag set on buffer? */
1276 if (buf
->buffer
->element
[0].sflags
& SBAL_SFLAGS0_PCI_REQ
)
1277 atomic_dec(&queue
->set_pci_flags_count
);
1279 qeth_release_skbs(buf
);
1281 for (i
= 0; i
< QETH_MAX_BUFFER_ELEMENTS(queue
->card
); ++i
) {
1282 if (buf
->buffer
->element
[i
].addr
&& buf
->is_header
[i
])
1283 kmem_cache_free(qeth_core_header_cache
,
1284 buf
->buffer
->element
[i
].addr
);
1285 buf
->is_header
[i
] = 0;
1288 qeth_scrub_qdio_buffer(buf
->buffer
,
1289 QETH_MAX_BUFFER_ELEMENTS(queue
->card
));
1290 buf
->next_element_to_fill
= 0;
1291 atomic_set(&buf
->state
, QETH_QDIO_BUF_EMPTY
);
1294 static void qeth_clear_outq_buffers(struct qeth_qdio_out_q
*q
, int free
)
1298 for (j
= 0; j
< QDIO_MAX_BUFFERS_PER_Q
; ++j
) {
1301 qeth_cleanup_handled_pending(q
, j
, 1);
1302 qeth_clear_output_buffer(q
, q
->bufs
[j
]);
1304 kmem_cache_free(qeth_qdio_outbuf_cache
, q
->bufs
[j
]);
1310 void qeth_clear_qdio_buffers(struct qeth_card
*card
)
1314 QETH_CARD_TEXT(card
, 2, "clearqdbf");
1315 /* clear outbound buffers to free skbs */
1316 for (i
= 0; i
< card
->qdio
.no_out_queues
; ++i
) {
1317 if (card
->qdio
.out_qs
[i
]) {
1318 qeth_clear_outq_buffers(card
->qdio
.out_qs
[i
], 0);
1322 EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers
);
1324 static void qeth_free_buffer_pool(struct qeth_card
*card
)
1326 struct qeth_buffer_pool_entry
*pool_entry
, *tmp
;
1328 list_for_each_entry_safe(pool_entry
, tmp
,
1329 &card
->qdio
.init_pool
.entry_list
, init_list
){
1330 for (i
= 0; i
< QETH_MAX_BUFFER_ELEMENTS(card
); ++i
)
1331 free_page((unsigned long)pool_entry
->elements
[i
]);
1332 list_del(&pool_entry
->init_list
);
1337 static void qeth_clean_channel(struct qeth_channel
*channel
)
1341 QETH_DBF_TEXT(SETUP
, 2, "freech");
1342 for (cnt
= 0; cnt
< QETH_CMD_BUFFER_NO
; cnt
++)
1343 kfree(channel
->iob
[cnt
].data
);
1344 kfree(channel
->ccw
);
1347 static void qeth_set_single_write_queues(struct qeth_card
*card
)
1349 if ((atomic_read(&card
->qdio
.state
) != QETH_QDIO_UNINITIALIZED
) &&
1350 (card
->qdio
.no_out_queues
== 4))
1351 qeth_free_qdio_buffers(card
);
1353 card
->qdio
.no_out_queues
= 1;
1354 if (card
->qdio
.default_out_queue
!= 0)
1355 dev_info(&card
->gdev
->dev
, "Priority Queueing not supported\n");
1357 card
->qdio
.default_out_queue
= 0;
1360 static void qeth_set_multiple_write_queues(struct qeth_card
*card
)
1362 if ((atomic_read(&card
->qdio
.state
) != QETH_QDIO_UNINITIALIZED
) &&
1363 (card
->qdio
.no_out_queues
== 1)) {
1364 qeth_free_qdio_buffers(card
);
1365 card
->qdio
.default_out_queue
= 2;
1367 card
->qdio
.no_out_queues
= 4;
1370 static void qeth_update_from_chp_desc(struct qeth_card
*card
)
1372 struct ccw_device
*ccwdev
;
1373 struct channel_path_desc_fmt0
*chp_dsc
;
1375 QETH_DBF_TEXT(SETUP
, 2, "chp_desc");
1377 ccwdev
= card
->data
.ccwdev
;
1378 chp_dsc
= ccw_device_get_chp_desc(ccwdev
, 0);
1382 card
->info
.func_level
= 0x4100 + chp_dsc
->desc
;
1383 if (card
->info
.type
== QETH_CARD_TYPE_IQD
)
1386 /* CHPP field bit 6 == 1 -> single queue */
1387 if ((chp_dsc
->chpp
& 0x02) == 0x02)
1388 qeth_set_single_write_queues(card
);
1390 qeth_set_multiple_write_queues(card
);
1393 QETH_DBF_TEXT_(SETUP
, 2, "nr:%x", card
->qdio
.no_out_queues
);
1394 QETH_DBF_TEXT_(SETUP
, 2, "lvl:%02x", card
->info
.func_level
);
1397 static void qeth_init_qdio_info(struct qeth_card
*card
)
1399 QETH_DBF_TEXT(SETUP
, 4, "intqdinf");
1400 atomic_set(&card
->qdio
.state
, QETH_QDIO_UNINITIALIZED
);
1401 card
->qdio
.do_prio_queueing
= QETH_PRIOQ_DEFAULT
;
1402 card
->qdio
.default_out_queue
= QETH_DEFAULT_QUEUE
;
1403 card
->qdio
.no_out_queues
= QETH_MAX_QUEUES
;
1406 card
->qdio
.no_in_queues
= 1;
1407 card
->qdio
.in_buf_size
= QETH_IN_BUF_SIZE_DEFAULT
;
1408 if (card
->info
.type
== QETH_CARD_TYPE_IQD
)
1409 card
->qdio
.init_pool
.buf_count
= QETH_IN_BUF_COUNT_HSDEFAULT
;
1411 card
->qdio
.init_pool
.buf_count
= QETH_IN_BUF_COUNT_DEFAULT
;
1412 card
->qdio
.in_buf_pool
.buf_count
= card
->qdio
.init_pool
.buf_count
;
1413 INIT_LIST_HEAD(&card
->qdio
.in_buf_pool
.entry_list
);
1414 INIT_LIST_HEAD(&card
->qdio
.init_pool
.entry_list
);
1417 static void qeth_set_initial_options(struct qeth_card
*card
)
1419 card
->options
.route4
.type
= NO_ROUTER
;
1420 card
->options
.route6
.type
= NO_ROUTER
;
1421 card
->options
.rx_sg_cb
= QETH_RX_SG_CB
;
1422 card
->options
.isolation
= ISOLATION_MODE_NONE
;
1423 card
->options
.cq
= QETH_CQ_DISABLED
;
1426 static int qeth_do_start_thread(struct qeth_card
*card
, unsigned long thread
)
1428 unsigned long flags
;
1431 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
1432 QETH_CARD_TEXT_(card
, 4, " %02x%02x%02x",
1433 (u8
) card
->thread_start_mask
,
1434 (u8
) card
->thread_allowed_mask
,
1435 (u8
) card
->thread_running_mask
);
1436 rc
= (card
->thread_start_mask
& thread
);
1437 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
1441 static void qeth_start_kernel_thread(struct work_struct
*work
)
1443 struct task_struct
*ts
;
1444 struct qeth_card
*card
= container_of(work
, struct qeth_card
,
1445 kernel_thread_starter
);
1446 QETH_CARD_TEXT(card
, 2, "strthrd");
1448 if (card
->read
.state
!= CH_STATE_UP
&&
1449 card
->write
.state
!= CH_STATE_UP
)
1451 if (qeth_do_start_thread(card
, QETH_RECOVER_THREAD
)) {
1452 ts
= kthread_run(card
->discipline
->recover
, (void *)card
,
1455 qeth_clear_thread_start_bit(card
, QETH_RECOVER_THREAD
);
1456 qeth_clear_thread_running_bit(card
,
1457 QETH_RECOVER_THREAD
);
1462 static void qeth_buffer_reclaim_work(struct work_struct
*);
1463 static void qeth_setup_card(struct qeth_card
*card
)
1465 QETH_DBF_TEXT(SETUP
, 2, "setupcrd");
1466 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
1468 card
->info
.type
= CARD_RDEV(card
)->id
.driver_info
;
1469 card
->state
= CARD_STATE_DOWN
;
1470 spin_lock_init(&card
->mclock
);
1471 spin_lock_init(&card
->lock
);
1472 spin_lock_init(&card
->ip_lock
);
1473 spin_lock_init(&card
->thread_mask_lock
);
1474 mutex_init(&card
->conf_mutex
);
1475 mutex_init(&card
->discipline_mutex
);
1476 mutex_init(&card
->vid_list_mutex
);
1477 INIT_WORK(&card
->kernel_thread_starter
, qeth_start_kernel_thread
);
1478 INIT_LIST_HEAD(&card
->cmd_waiter_list
);
1479 init_waitqueue_head(&card
->wait_q
);
1480 qeth_set_initial_options(card
);
1481 /* IP address takeover */
1482 INIT_LIST_HEAD(&card
->ipato
.entries
);
1483 qeth_init_qdio_info(card
);
1484 INIT_DELAYED_WORK(&card
->buffer_reclaim_work
, qeth_buffer_reclaim_work
);
1485 INIT_WORK(&card
->close_dev_work
, qeth_close_dev_handler
);
1488 static void qeth_core_sl_print(struct seq_file
*m
, struct service_level
*slr
)
1490 struct qeth_card
*card
= container_of(slr
, struct qeth_card
,
1491 qeth_service_level
);
1492 if (card
->info
.mcl_level
[0])
1493 seq_printf(m
, "qeth: %s firmware level %s\n",
1494 CARD_BUS_ID(card
), card
->info
.mcl_level
);
1497 static struct qeth_card
*qeth_alloc_card(void)
1499 struct qeth_card
*card
;
1501 QETH_DBF_TEXT(SETUP
, 2, "alloccrd");
1502 card
= kzalloc(sizeof(*card
), GFP_KERNEL
);
1505 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
1506 if (qeth_setup_channel(&card
->read
, true))
1508 if (qeth_setup_channel(&card
->write
, true))
1510 if (qeth_setup_channel(&card
->data
, false))
1512 card
->options
.layer2
= -1;
1513 card
->qeth_service_level
.seq_print
= qeth_core_sl_print
;
1514 register_service_level(&card
->qeth_service_level
);
1518 qeth_clean_channel(&card
->write
);
1520 qeth_clean_channel(&card
->read
);
1527 static int qeth_clear_channel(struct qeth_channel
*channel
)
1529 unsigned long flags
;
1530 struct qeth_card
*card
;
1533 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1534 QETH_CARD_TEXT(card
, 3, "clearch");
1535 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
1536 rc
= ccw_device_clear(channel
->ccwdev
, QETH_CLEAR_CHANNEL_PARM
);
1537 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
1541 rc
= wait_event_interruptible_timeout(card
->wait_q
,
1542 channel
->state
== CH_STATE_STOPPED
, QETH_TIMEOUT
);
1543 if (rc
== -ERESTARTSYS
)
1545 if (channel
->state
!= CH_STATE_STOPPED
)
1547 channel
->state
= CH_STATE_DOWN
;
1551 static int qeth_halt_channel(struct qeth_channel
*channel
)
1553 unsigned long flags
;
1554 struct qeth_card
*card
;
1557 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1558 QETH_CARD_TEXT(card
, 3, "haltch");
1559 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
1560 rc
= ccw_device_halt(channel
->ccwdev
, QETH_HALT_CHANNEL_PARM
);
1561 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
1565 rc
= wait_event_interruptible_timeout(card
->wait_q
,
1566 channel
->state
== CH_STATE_HALTED
, QETH_TIMEOUT
);
1567 if (rc
== -ERESTARTSYS
)
1569 if (channel
->state
!= CH_STATE_HALTED
)
1574 static int qeth_halt_channels(struct qeth_card
*card
)
1576 int rc1
= 0, rc2
= 0, rc3
= 0;
1578 QETH_CARD_TEXT(card
, 3, "haltchs");
1579 rc1
= qeth_halt_channel(&card
->read
);
1580 rc2
= qeth_halt_channel(&card
->write
);
1581 rc3
= qeth_halt_channel(&card
->data
);
1589 static int qeth_clear_channels(struct qeth_card
*card
)
1591 int rc1
= 0, rc2
= 0, rc3
= 0;
1593 QETH_CARD_TEXT(card
, 3, "clearchs");
1594 rc1
= qeth_clear_channel(&card
->read
);
1595 rc2
= qeth_clear_channel(&card
->write
);
1596 rc3
= qeth_clear_channel(&card
->data
);
1604 static int qeth_clear_halt_card(struct qeth_card
*card
, int halt
)
1608 QETH_CARD_TEXT(card
, 3, "clhacrd");
1611 rc
= qeth_halt_channels(card
);
1614 return qeth_clear_channels(card
);
1617 int qeth_qdio_clear_card(struct qeth_card
*card
, int use_halt
)
1621 QETH_CARD_TEXT(card
, 3, "qdioclr");
1622 switch (atomic_cmpxchg(&card
->qdio
.state
, QETH_QDIO_ESTABLISHED
,
1623 QETH_QDIO_CLEANING
)) {
1624 case QETH_QDIO_ESTABLISHED
:
1625 if (card
->info
.type
== QETH_CARD_TYPE_IQD
)
1626 rc
= qdio_shutdown(CARD_DDEV(card
),
1627 QDIO_FLAG_CLEANUP_USING_HALT
);
1629 rc
= qdio_shutdown(CARD_DDEV(card
),
1630 QDIO_FLAG_CLEANUP_USING_CLEAR
);
1632 QETH_CARD_TEXT_(card
, 3, "1err%d", rc
);
1633 atomic_set(&card
->qdio
.state
, QETH_QDIO_ALLOCATED
);
1635 case QETH_QDIO_CLEANING
:
1640 rc
= qeth_clear_halt_card(card
, use_halt
);
1642 QETH_CARD_TEXT_(card
, 3, "2err%d", rc
);
1643 card
->state
= CARD_STATE_DOWN
;
1646 EXPORT_SYMBOL_GPL(qeth_qdio_clear_card
);
1648 static int qeth_read_conf_data(struct qeth_card
*card
, void **buffer
,
1654 struct qeth_channel
*channel
= &card
->data
;
1655 unsigned long flags
;
1658 * scan for RCD command in extended SenseID data
1660 ciw
= ccw_device_get_ciw(channel
->ccwdev
, CIW_TYPE_RCD
);
1661 if (!ciw
|| ciw
->cmd
== 0)
1663 rcd_buf
= kzalloc(ciw
->count
, GFP_KERNEL
| GFP_DMA
);
1667 qeth_setup_ccw(channel
->ccw
, ciw
->cmd
, ciw
->count
, rcd_buf
);
1668 channel
->state
= CH_STATE_RCD
;
1669 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
1670 ret
= ccw_device_start_timeout(channel
->ccwdev
, channel
->ccw
,
1671 QETH_RCD_PARM
, LPM_ANYPATH
, 0,
1673 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
1675 wait_event(card
->wait_q
,
1676 (channel
->state
== CH_STATE_RCD_DONE
||
1677 channel
->state
== CH_STATE_DOWN
));
1678 if (channel
->state
== CH_STATE_DOWN
)
1681 channel
->state
= CH_STATE_DOWN
;
1687 *length
= ciw
->count
;
1693 static void qeth_configure_unitaddr(struct qeth_card
*card
, char *prcd
)
1695 QETH_DBF_TEXT(SETUP
, 2, "cfgunit");
1696 card
->info
.chpid
= prcd
[30];
1697 card
->info
.unit_addr2
= prcd
[31];
1698 card
->info
.cula
= prcd
[63];
1699 card
->info
.guestlan
= ((prcd
[0x10] == _ascebc
['V']) &&
1700 (prcd
[0x11] == _ascebc
['M']));
1703 static enum qeth_discipline_id
qeth_vm_detect_layer(struct qeth_card
*card
)
1705 enum qeth_discipline_id disc
= QETH_DISCIPLINE_UNDETERMINED
;
1706 struct diag26c_vnic_resp
*response
= NULL
;
1707 struct diag26c_vnic_req
*request
= NULL
;
1708 struct ccw_dev_id id
;
1712 QETH_DBF_TEXT(SETUP
, 2, "vmlayer");
1714 cpcmd("QUERY USERID", userid
, sizeof(userid
), &rc
);
1718 request
= kzalloc(sizeof(*request
), GFP_KERNEL
| GFP_DMA
);
1719 response
= kzalloc(sizeof(*response
), GFP_KERNEL
| GFP_DMA
);
1720 if (!request
|| !response
) {
1725 ccw_device_get_id(CARD_RDEV(card
), &id
);
1726 request
->resp_buf_len
= sizeof(*response
);
1727 request
->resp_version
= DIAG26C_VERSION6_VM65918
;
1728 request
->req_format
= DIAG26C_VNIC_INFO
;
1730 memcpy(&request
->sys_name
, userid
, 8);
1731 request
->devno
= id
.devno
;
1733 QETH_DBF_HEX(CTRL
, 2, request
, sizeof(*request
));
1734 rc
= diag26c(request
, response
, DIAG26C_PORT_VNIC
);
1735 QETH_DBF_HEX(CTRL
, 2, request
, sizeof(*request
));
1738 QETH_DBF_HEX(CTRL
, 2, response
, sizeof(*response
));
1740 if (request
->resp_buf_len
< sizeof(*response
) ||
1741 response
->version
!= request
->resp_version
) {
1746 if (response
->protocol
== VNIC_INFO_PROT_L2
)
1747 disc
= QETH_DISCIPLINE_LAYER2
;
1748 else if (response
->protocol
== VNIC_INFO_PROT_L3
)
1749 disc
= QETH_DISCIPLINE_LAYER3
;
1755 QETH_DBF_TEXT_(SETUP
, 2, "err%x", rc
);
1759 /* Determine whether the device requires a specific layer discipline */
1760 static enum qeth_discipline_id
qeth_enforce_discipline(struct qeth_card
*card
)
1762 enum qeth_discipline_id disc
= QETH_DISCIPLINE_UNDETERMINED
;
1764 if (card
->info
.type
== QETH_CARD_TYPE_OSM
||
1765 card
->info
.type
== QETH_CARD_TYPE_OSN
)
1766 disc
= QETH_DISCIPLINE_LAYER2
;
1767 else if (card
->info
.guestlan
)
1768 disc
= (card
->info
.type
== QETH_CARD_TYPE_IQD
) ?
1769 QETH_DISCIPLINE_LAYER3
:
1770 qeth_vm_detect_layer(card
);
1773 case QETH_DISCIPLINE_LAYER2
:
1774 QETH_DBF_TEXT(SETUP
, 3, "force l2");
1776 case QETH_DISCIPLINE_LAYER3
:
1777 QETH_DBF_TEXT(SETUP
, 3, "force l3");
1780 QETH_DBF_TEXT(SETUP
, 3, "force no");
1786 static void qeth_configure_blkt_default(struct qeth_card
*card
, char *prcd
)
1788 QETH_DBF_TEXT(SETUP
, 2, "cfgblkt");
1790 if (prcd
[74] == 0xF0 && prcd
[75] == 0xF0 &&
1791 prcd
[76] >= 0xF1 && prcd
[76] <= 0xF4) {
1792 card
->info
.blkt
.time_total
= 0;
1793 card
->info
.blkt
.inter_packet
= 0;
1794 card
->info
.blkt
.inter_packet_jumbo
= 0;
1796 card
->info
.blkt
.time_total
= 250;
1797 card
->info
.blkt
.inter_packet
= 5;
1798 card
->info
.blkt
.inter_packet_jumbo
= 15;
1802 static void qeth_init_tokens(struct qeth_card
*card
)
1804 card
->token
.issuer_rm_w
= 0x00010103UL
;
1805 card
->token
.cm_filter_w
= 0x00010108UL
;
1806 card
->token
.cm_connection_w
= 0x0001010aUL
;
1807 card
->token
.ulp_filter_w
= 0x0001010bUL
;
1808 card
->token
.ulp_connection_w
= 0x0001010dUL
;
1811 static void qeth_init_func_level(struct qeth_card
*card
)
1813 switch (card
->info
.type
) {
1814 case QETH_CARD_TYPE_IQD
:
1815 card
->info
.func_level
= QETH_IDX_FUNC_LEVEL_IQD
;
1817 case QETH_CARD_TYPE_OSD
:
1818 case QETH_CARD_TYPE_OSN
:
1819 card
->info
.func_level
= QETH_IDX_FUNC_LEVEL_OSD
;
1826 static int qeth_idx_activate_get_answer(struct qeth_channel
*channel
,
1827 void (*idx_reply_cb
)(struct qeth_channel
*,
1828 struct qeth_cmd_buffer
*))
1830 struct qeth_cmd_buffer
*iob
;
1831 unsigned long flags
;
1833 struct qeth_card
*card
;
1835 QETH_DBF_TEXT(SETUP
, 2, "idxanswr");
1836 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1837 iob
= qeth_get_buffer(channel
);
1840 iob
->callback
= idx_reply_cb
;
1841 qeth_setup_ccw(channel
->ccw
, CCW_CMD_READ
, QETH_BUFSIZE
, iob
->data
);
1843 wait_event(card
->wait_q
,
1844 atomic_cmpxchg(&channel
->irq_pending
, 0, 1) == 0);
1845 QETH_DBF_TEXT(SETUP
, 6, "noirqpnd");
1846 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
1847 rc
= ccw_device_start_timeout(channel
->ccwdev
, channel
->ccw
,
1848 (addr_t
) iob
, 0, 0, QETH_TIMEOUT
);
1849 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
1852 QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc
);
1853 QETH_DBF_TEXT_(SETUP
, 2, "2err%d", rc
);
1854 atomic_set(&channel
->irq_pending
, 0);
1855 wake_up(&card
->wait_q
);
1858 rc
= wait_event_interruptible_timeout(card
->wait_q
,
1859 channel
->state
== CH_STATE_UP
, QETH_TIMEOUT
);
1860 if (rc
== -ERESTARTSYS
)
1862 if (channel
->state
!= CH_STATE_UP
) {
1864 QETH_DBF_TEXT_(SETUP
, 2, "3err%d", rc
);
1870 static int qeth_idx_activate_channel(struct qeth_channel
*channel
,
1871 void (*idx_reply_cb
)(struct qeth_channel
*,
1872 struct qeth_cmd_buffer
*))
1874 struct qeth_card
*card
;
1875 struct qeth_cmd_buffer
*iob
;
1876 unsigned long flags
;
1880 struct ccw_dev_id temp_devid
;
1882 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1884 QETH_DBF_TEXT(SETUP
, 2, "idxactch");
1886 iob
= qeth_get_buffer(channel
);
1889 iob
->callback
= idx_reply_cb
;
1890 qeth_setup_ccw(channel
->ccw
, CCW_CMD_WRITE
, IDX_ACTIVATE_SIZE
,
1892 if (channel
== &card
->write
) {
1893 memcpy(iob
->data
, IDX_ACTIVATE_WRITE
, IDX_ACTIVATE_SIZE
);
1894 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob
->data
),
1895 &card
->seqno
.trans_hdr
, QETH_SEQ_NO_LENGTH
);
1896 card
->seqno
.trans_hdr
++;
1898 memcpy(iob
->data
, IDX_ACTIVATE_READ
, IDX_ACTIVATE_SIZE
);
1899 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob
->data
),
1900 &card
->seqno
.trans_hdr
, QETH_SEQ_NO_LENGTH
);
1902 tmp
= ((u8
)card
->dev
->dev_port
) | 0x80;
1903 memcpy(QETH_IDX_ACT_PNO(iob
->data
), &tmp
, 1);
1904 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob
->data
),
1905 &card
->token
.issuer_rm_w
, QETH_MPC_TOKEN_LENGTH
);
1906 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob
->data
),
1907 &card
->info
.func_level
, sizeof(__u16
));
1908 ccw_device_get_id(CARD_DDEV(card
), &temp_devid
);
1909 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob
->data
), &temp_devid
.devno
, 2);
1910 temp
= (card
->info
.cula
<< 8) + card
->info
.unit_addr2
;
1911 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob
->data
), &temp
, 2);
1913 wait_event(card
->wait_q
,
1914 atomic_cmpxchg(&channel
->irq_pending
, 0, 1) == 0);
1915 QETH_DBF_TEXT(SETUP
, 6, "noirqpnd");
1916 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
1917 rc
= ccw_device_start_timeout(channel
->ccwdev
, channel
->ccw
,
1918 (addr_t
) iob
, 0, 0, QETH_TIMEOUT
);
1919 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
1922 QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n",
1924 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
1925 atomic_set(&channel
->irq_pending
, 0);
1926 wake_up(&card
->wait_q
);
1929 rc
= wait_event_interruptible_timeout(card
->wait_q
,
1930 channel
->state
== CH_STATE_ACTIVATING
, QETH_TIMEOUT
);
1931 if (rc
== -ERESTARTSYS
)
1933 if (channel
->state
!= CH_STATE_ACTIVATING
) {
1934 dev_warn(&channel
->ccwdev
->dev
, "The qeth device driver"
1935 " failed to recover an error on the device\n");
1936 QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n",
1937 dev_name(&channel
->ccwdev
->dev
));
1938 QETH_DBF_TEXT_(SETUP
, 2, "2err%d", -ETIME
);
1941 return qeth_idx_activate_get_answer(channel
, idx_reply_cb
);
1944 static int qeth_peer_func_level(int level
)
1946 if ((level
& 0xff) == 8)
1947 return (level
& 0xff) + 0x400;
1948 if (((level
>> 8) & 3) == 1)
1949 return (level
& 0xff) + 0x200;
1953 static void qeth_idx_write_cb(struct qeth_channel
*channel
,
1954 struct qeth_cmd_buffer
*iob
)
1956 struct qeth_card
*card
;
1959 QETH_DBF_TEXT(SETUP
, 2, "idxwrcb");
1961 if (channel
->state
== CH_STATE_DOWN
) {
1962 channel
->state
= CH_STATE_ACTIVATING
;
1965 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1967 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob
->data
))) {
1968 if (QETH_IDX_ACT_CAUSE_CODE(iob
->data
) == QETH_IDX_ACT_ERR_EXCL
)
1969 dev_err(&channel
->ccwdev
->dev
,
1970 "The adapter is used exclusively by another "
1973 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel:"
1974 " negative reply\n",
1975 dev_name(&channel
->ccwdev
->dev
));
1978 memcpy(&temp
, QETH_IDX_ACT_FUNC_LEVEL(iob
->data
), 2);
1979 if ((temp
& ~0x0100) != qeth_peer_func_level(card
->info
.func_level
)) {
1980 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel: "
1981 "function level mismatch (sent: 0x%x, received: "
1982 "0x%x)\n", dev_name(&channel
->ccwdev
->dev
),
1983 card
->info
.func_level
, temp
);
1986 channel
->state
= CH_STATE_UP
;
1988 qeth_release_buffer(channel
, iob
);
1991 static void qeth_idx_read_cb(struct qeth_channel
*channel
,
1992 struct qeth_cmd_buffer
*iob
)
1994 struct qeth_card
*card
;
1997 QETH_DBF_TEXT(SETUP
, 2, "idxrdcb");
1998 if (channel
->state
== CH_STATE_DOWN
) {
1999 channel
->state
= CH_STATE_ACTIVATING
;
2003 card
= CARD_FROM_CDEV(channel
->ccwdev
);
2004 if (qeth_check_idx_response(card
, iob
->data
))
2007 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob
->data
))) {
2008 switch (QETH_IDX_ACT_CAUSE_CODE(iob
->data
)) {
2009 case QETH_IDX_ACT_ERR_EXCL
:
2010 dev_err(&channel
->ccwdev
->dev
,
2011 "The adapter is used exclusively by another "
2014 case QETH_IDX_ACT_ERR_AUTH
:
2015 case QETH_IDX_ACT_ERR_AUTH_USER
:
2016 dev_err(&channel
->ccwdev
->dev
,
2017 "Setting the device online failed because of "
2018 "insufficient authorization\n");
2021 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel:"
2022 " negative reply\n",
2023 dev_name(&channel
->ccwdev
->dev
));
2025 QETH_CARD_TEXT_(card
, 2, "idxread%c",
2026 QETH_IDX_ACT_CAUSE_CODE(iob
->data
));
2030 memcpy(&temp
, QETH_IDX_ACT_FUNC_LEVEL(iob
->data
), 2);
2031 if (temp
!= qeth_peer_func_level(card
->info
.func_level
)) {
2032 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel: function "
2033 "level mismatch (sent: 0x%x, received: 0x%x)\n",
2034 dev_name(&channel
->ccwdev
->dev
),
2035 card
->info
.func_level
, temp
);
2038 memcpy(&card
->token
.issuer_rm_r
,
2039 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob
->data
),
2040 QETH_MPC_TOKEN_LENGTH
);
2041 memcpy(&card
->info
.mcl_level
[0],
2042 QETH_IDX_REPLY_LEVEL(iob
->data
), QETH_MCL_LENGTH
);
2043 channel
->state
= CH_STATE_UP
;
2045 qeth_release_buffer(channel
, iob
);
2048 void qeth_prepare_control_data(struct qeth_card
*card
, int len
,
2049 struct qeth_cmd_buffer
*iob
)
2051 qeth_setup_ccw(iob
->channel
->ccw
, CCW_CMD_WRITE
, len
, iob
->data
);
2052 iob
->callback
= qeth_release_buffer
;
2054 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob
->data
),
2055 &card
->seqno
.trans_hdr
, QETH_SEQ_NO_LENGTH
);
2056 card
->seqno
.trans_hdr
++;
2057 memcpy(QETH_PDU_HEADER_SEQ_NO(iob
->data
),
2058 &card
->seqno
.pdu_hdr
, QETH_SEQ_NO_LENGTH
);
2059 card
->seqno
.pdu_hdr
++;
2060 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob
->data
),
2061 &card
->seqno
.pdu_hdr_ack
, QETH_SEQ_NO_LENGTH
);
2062 QETH_DBF_HEX(CTRL
, 2, iob
->data
, QETH_DBF_CTRL_LEN
);
2064 EXPORT_SYMBOL_GPL(qeth_prepare_control_data
);
2067 * qeth_send_control_data() - send control command to the card
2068 * @card: qeth_card structure pointer
2069 * @len: size of the command buffer
2070 * @iob: qeth_cmd_buffer pointer
2071 * @reply_cb: callback function pointer
2072 * @cb_card: pointer to the qeth_card structure
2073 * @cb_reply: pointer to the qeth_reply structure
2074 * @cb_cmd: pointer to the original iob for non-IPA
2075 * commands, or to the qeth_ipa_cmd structure
2076 * for the IPA commands.
2077 * @reply_param: private pointer passed to the callback
2079 * Returns the value of the `return_code' field of the response
2080 * block returned from the hardware, or other error indication.
2081 * Value of zero indicates successful execution of the command.
2083 * Callback function gets called one or more times, with cb_cmd
2084 * pointing to the response returned by the hardware. Callback
2085 * function must return non-zero if more reply blocks are expected,
2086 * and zero if the last or only reply block is received. Callback
2087 * function can get the value of the reply_param pointer from the
2088 * field 'param' of the structure qeth_reply.
2091 int qeth_send_control_data(struct qeth_card
*card
, int len
,
2092 struct qeth_cmd_buffer
*iob
,
2093 int (*reply_cb
)(struct qeth_card
*cb_card
,
2094 struct qeth_reply
*cb_reply
,
2095 unsigned long cb_cmd
),
2098 struct qeth_channel
*channel
= iob
->channel
;
2100 unsigned long flags
;
2101 struct qeth_reply
*reply
= NULL
;
2102 unsigned long timeout
, event_timeout
;
2103 struct qeth_ipa_cmd
*cmd
= NULL
;
2105 QETH_CARD_TEXT(card
, 2, "sendctl");
2107 if (card
->read_or_write_problem
) {
2108 qeth_release_buffer(channel
, iob
);
2111 reply
= qeth_alloc_reply(card
);
2115 reply
->callback
= reply_cb
;
2116 reply
->param
= reply_param
;
2118 init_waitqueue_head(&reply
->wait_q
);
2120 while (atomic_cmpxchg(&channel
->irq_pending
, 0, 1)) ;
2122 if (IS_IPA(iob
->data
)) {
2123 cmd
= __ipa_cmd(iob
);
2124 cmd
->hdr
.seqno
= card
->seqno
.ipa
++;
2125 reply
->seqno
= cmd
->hdr
.seqno
;
2126 event_timeout
= QETH_IPA_TIMEOUT
;
2128 reply
->seqno
= QETH_IDX_COMMAND_SEQNO
;
2129 event_timeout
= QETH_TIMEOUT
;
2131 qeth_prepare_control_data(card
, len
, iob
);
2133 spin_lock_irqsave(&card
->lock
, flags
);
2134 list_add_tail(&reply
->list
, &card
->cmd_waiter_list
);
2135 spin_unlock_irqrestore(&card
->lock
, flags
);
2137 timeout
= jiffies
+ event_timeout
;
2139 QETH_CARD_TEXT(card
, 6, "noirqpnd");
2140 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
2141 rc
= ccw_device_start_timeout(channel
->ccwdev
, channel
->ccw
,
2142 (addr_t
) iob
, 0, 0, event_timeout
);
2143 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
2145 QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: "
2146 "ccw_device_start rc = %i\n",
2147 dev_name(&channel
->ccwdev
->dev
), rc
);
2148 QETH_CARD_TEXT_(card
, 2, " err%d", rc
);
2149 spin_lock_irqsave(&card
->lock
, flags
);
2150 list_del_init(&reply
->list
);
2151 qeth_put_reply(reply
);
2152 spin_unlock_irqrestore(&card
->lock
, flags
);
2153 qeth_release_buffer(channel
, iob
);
2154 atomic_set(&channel
->irq_pending
, 0);
2155 wake_up(&card
->wait_q
);
2159 /* we have only one long running ipassist, since we can ensure
2160 process context of this command we can sleep */
2161 if (cmd
&& cmd
->hdr
.command
== IPA_CMD_SETIP
&&
2162 cmd
->hdr
.prot_version
== QETH_PROT_IPV4
) {
2163 if (!wait_event_timeout(reply
->wait_q
,
2164 atomic_read(&reply
->received
), event_timeout
))
2167 while (!atomic_read(&reply
->received
)) {
2168 if (time_after(jiffies
, timeout
))
2175 qeth_put_reply(reply
);
2180 spin_lock_irqsave(&reply
->card
->lock
, flags
);
2181 list_del_init(&reply
->list
);
2182 spin_unlock_irqrestore(&reply
->card
->lock
, flags
);
2183 atomic_inc(&reply
->received
);
2185 qeth_put_reply(reply
);
2188 EXPORT_SYMBOL_GPL(qeth_send_control_data
);
2190 static int qeth_cm_enable_cb(struct qeth_card
*card
, struct qeth_reply
*reply
,
2193 struct qeth_cmd_buffer
*iob
;
2195 QETH_DBF_TEXT(SETUP
, 2, "cmenblcb");
2197 iob
= (struct qeth_cmd_buffer
*) data
;
2198 memcpy(&card
->token
.cm_filter_r
,
2199 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob
->data
),
2200 QETH_MPC_TOKEN_LENGTH
);
2201 QETH_DBF_TEXT_(SETUP
, 2, " rc%d", iob
->rc
);
2205 static int qeth_cm_enable(struct qeth_card
*card
)
2208 struct qeth_cmd_buffer
*iob
;
2210 QETH_DBF_TEXT(SETUP
, 2, "cmenable");
2212 iob
= qeth_wait_for_buffer(&card
->write
);
2213 memcpy(iob
->data
, CM_ENABLE
, CM_ENABLE_SIZE
);
2214 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob
->data
),
2215 &card
->token
.issuer_rm_r
, QETH_MPC_TOKEN_LENGTH
);
2216 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob
->data
),
2217 &card
->token
.cm_filter_w
, QETH_MPC_TOKEN_LENGTH
);
2219 rc
= qeth_send_control_data(card
, CM_ENABLE_SIZE
, iob
,
2220 qeth_cm_enable_cb
, NULL
);
2224 static int qeth_cm_setup_cb(struct qeth_card
*card
, struct qeth_reply
*reply
,
2228 struct qeth_cmd_buffer
*iob
;
2230 QETH_DBF_TEXT(SETUP
, 2, "cmsetpcb");
2232 iob
= (struct qeth_cmd_buffer
*) data
;
2233 memcpy(&card
->token
.cm_connection_r
,
2234 QETH_CM_SETUP_RESP_DEST_ADDR(iob
->data
),
2235 QETH_MPC_TOKEN_LENGTH
);
2236 QETH_DBF_TEXT_(SETUP
, 2, " rc%d", iob
->rc
);
2240 static int qeth_cm_setup(struct qeth_card
*card
)
2243 struct qeth_cmd_buffer
*iob
;
2245 QETH_DBF_TEXT(SETUP
, 2, "cmsetup");
2247 iob
= qeth_wait_for_buffer(&card
->write
);
2248 memcpy(iob
->data
, CM_SETUP
, CM_SETUP_SIZE
);
2249 memcpy(QETH_CM_SETUP_DEST_ADDR(iob
->data
),
2250 &card
->token
.issuer_rm_r
, QETH_MPC_TOKEN_LENGTH
);
2251 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob
->data
),
2252 &card
->token
.cm_connection_w
, QETH_MPC_TOKEN_LENGTH
);
2253 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob
->data
),
2254 &card
->token
.cm_filter_r
, QETH_MPC_TOKEN_LENGTH
);
2255 rc
= qeth_send_control_data(card
, CM_SETUP_SIZE
, iob
,
2256 qeth_cm_setup_cb
, NULL
);
2261 static int qeth_update_max_mtu(struct qeth_card
*card
, unsigned int max_mtu
)
2263 struct net_device
*dev
= card
->dev
;
2264 unsigned int new_mtu
;
2267 /* IQD needs accurate max MTU to set up its RX buffers: */
2270 /* tolerate quirky HW: */
2271 max_mtu
= ETH_MAX_MTU
;
2276 /* move any device with default MTU to new max MTU: */
2277 new_mtu
= (dev
->mtu
== dev
->max_mtu
) ? max_mtu
: dev
->mtu
;
2279 /* adjust RX buffer size to new max MTU: */
2280 card
->qdio
.in_buf_size
= max_mtu
+ 2 * PAGE_SIZE
;
2281 if (dev
->max_mtu
&& dev
->max_mtu
!= max_mtu
)
2282 qeth_free_qdio_buffers(card
);
2286 /* default MTUs for first setup: */
2287 else if (card
->options
.layer2
)
2288 new_mtu
= ETH_DATA_LEN
;
2290 new_mtu
= ETH_DATA_LEN
- 8; /* allow for LLC + SNAP */
2293 dev
->max_mtu
= max_mtu
;
2294 dev
->mtu
= min(new_mtu
, max_mtu
);
2299 static int qeth_get_mtu_outof_framesize(int framesize
)
2301 switch (framesize
) {
2315 static int qeth_ulp_enable_cb(struct qeth_card
*card
, struct qeth_reply
*reply
,
2319 __u16 mtu
, framesize
;
2322 struct qeth_cmd_buffer
*iob
;
2324 QETH_DBF_TEXT(SETUP
, 2, "ulpenacb");
2326 iob
= (struct qeth_cmd_buffer
*) data
;
2327 memcpy(&card
->token
.ulp_filter_r
,
2328 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob
->data
),
2329 QETH_MPC_TOKEN_LENGTH
);
2330 if (card
->info
.type
== QETH_CARD_TYPE_IQD
) {
2331 memcpy(&framesize
, QETH_ULP_ENABLE_RESP_MAX_MTU(iob
->data
), 2);
2332 mtu
= qeth_get_mtu_outof_framesize(framesize
);
2334 mtu
= *(__u16
*)QETH_ULP_ENABLE_RESP_MAX_MTU(iob
->data
);
2336 *(u16
*)reply
->param
= mtu
;
2338 memcpy(&len
, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob
->data
), 2);
2339 if (len
>= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE
) {
2341 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob
->data
), 1);
2342 card
->info
.link_type
= link_type
;
2344 card
->info
.link_type
= 0;
2345 QETH_DBF_TEXT_(SETUP
, 2, "link%d", card
->info
.link_type
);
2346 QETH_DBF_TEXT_(SETUP
, 2, " rc%d", iob
->rc
);
2350 static u8
qeth_mpc_select_prot_type(struct qeth_card
*card
)
2353 return QETH_PROT_OSN2
;
2354 return (card
->options
.layer2
== 1) ? QETH_PROT_LAYER2
: QETH_PROT_TCPIP
;
2357 static int qeth_ulp_enable(struct qeth_card
*card
)
2359 u8 prot_type
= qeth_mpc_select_prot_type(card
);
2360 struct qeth_cmd_buffer
*iob
;
2364 /*FIXME: trace view callbacks*/
2365 QETH_DBF_TEXT(SETUP
, 2, "ulpenabl");
2367 iob
= qeth_wait_for_buffer(&card
->write
);
2368 memcpy(iob
->data
, ULP_ENABLE
, ULP_ENABLE_SIZE
);
2370 *(QETH_ULP_ENABLE_LINKNUM(iob
->data
)) = (u8
) card
->dev
->dev_port
;
2371 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob
->data
), &prot_type
, 1);
2372 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob
->data
),
2373 &card
->token
.cm_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2374 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob
->data
),
2375 &card
->token
.ulp_filter_w
, QETH_MPC_TOKEN_LENGTH
);
2376 rc
= qeth_send_control_data(card
, ULP_ENABLE_SIZE
, iob
,
2377 qeth_ulp_enable_cb
, &max_mtu
);
2380 return qeth_update_max_mtu(card
, max_mtu
);
2383 static int qeth_ulp_setup_cb(struct qeth_card
*card
, struct qeth_reply
*reply
,
2386 struct qeth_cmd_buffer
*iob
;
2388 QETH_DBF_TEXT(SETUP
, 2, "ulpstpcb");
2390 iob
= (struct qeth_cmd_buffer
*) data
;
2391 memcpy(&card
->token
.ulp_connection_r
,
2392 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob
->data
),
2393 QETH_MPC_TOKEN_LENGTH
);
2394 if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob
->data
),
2396 QETH_DBF_TEXT(SETUP
, 2, "olmlimit");
2397 dev_err(&card
->gdev
->dev
, "A connection could not be "
2398 "established because of an OLM limit\n");
2401 QETH_DBF_TEXT_(SETUP
, 2, " rc%d", iob
->rc
);
2405 static int qeth_ulp_setup(struct qeth_card
*card
)
2409 struct qeth_cmd_buffer
*iob
;
2410 struct ccw_dev_id dev_id
;
2412 QETH_DBF_TEXT(SETUP
, 2, "ulpsetup");
2414 iob
= qeth_wait_for_buffer(&card
->write
);
2415 memcpy(iob
->data
, ULP_SETUP
, ULP_SETUP_SIZE
);
2417 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob
->data
),
2418 &card
->token
.cm_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2419 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob
->data
),
2420 &card
->token
.ulp_connection_w
, QETH_MPC_TOKEN_LENGTH
);
2421 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob
->data
),
2422 &card
->token
.ulp_filter_r
, QETH_MPC_TOKEN_LENGTH
);
2424 ccw_device_get_id(CARD_DDEV(card
), &dev_id
);
2425 memcpy(QETH_ULP_SETUP_CUA(iob
->data
), &dev_id
.devno
, 2);
2426 temp
= (card
->info
.cula
<< 8) + card
->info
.unit_addr2
;
2427 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob
->data
), &temp
, 2);
2428 rc
= qeth_send_control_data(card
, ULP_SETUP_SIZE
, iob
,
2429 qeth_ulp_setup_cb
, NULL
);
2433 static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q
*q
, int bidx
)
2435 struct qeth_qdio_out_buffer
*newbuf
;
2437 newbuf
= kmem_cache_zalloc(qeth_qdio_outbuf_cache
, GFP_ATOMIC
);
2441 newbuf
->buffer
= q
->qdio_bufs
[bidx
];
2442 skb_queue_head_init(&newbuf
->skb_list
);
2443 lockdep_set_class(&newbuf
->skb_list
.lock
, &qdio_out_skb_queue_key
);
2445 newbuf
->next_pending
= q
->bufs
[bidx
];
2446 atomic_set(&newbuf
->state
, QETH_QDIO_BUF_EMPTY
);
2447 q
->bufs
[bidx
] = newbuf
;
2451 static void qeth_free_qdio_out_buf(struct qeth_qdio_out_q
*q
)
2456 qdio_free_buffers(q
->qdio_bufs
, QDIO_MAX_BUFFERS_PER_Q
);
2460 static struct qeth_qdio_out_q
*qeth_alloc_qdio_out_buf(void)
2462 struct qeth_qdio_out_q
*q
= kzalloc(sizeof(*q
), GFP_KERNEL
);
2467 if (qdio_alloc_buffers(q
->qdio_bufs
, QDIO_MAX_BUFFERS_PER_Q
)) {
2474 static int qeth_alloc_qdio_buffers(struct qeth_card
*card
)
2478 QETH_DBF_TEXT(SETUP
, 2, "allcqdbf");
2480 if (atomic_cmpxchg(&card
->qdio
.state
, QETH_QDIO_UNINITIALIZED
,
2481 QETH_QDIO_ALLOCATED
) != QETH_QDIO_UNINITIALIZED
)
2484 QETH_DBF_TEXT(SETUP
, 2, "inq");
2485 card
->qdio
.in_q
= qeth_alloc_qdio_queue();
2486 if (!card
->qdio
.in_q
)
2489 /* inbound buffer pool */
2490 if (qeth_alloc_buffer_pool(card
))
2495 kcalloc(card
->qdio
.no_out_queues
,
2496 sizeof(struct qeth_qdio_out_q
*),
2498 if (!card
->qdio
.out_qs
)
2500 for (i
= 0; i
< card
->qdio
.no_out_queues
; ++i
) {
2501 card
->qdio
.out_qs
[i
] = qeth_alloc_qdio_out_buf();
2502 if (!card
->qdio
.out_qs
[i
])
2504 QETH_DBF_TEXT_(SETUP
, 2, "outq %i", i
);
2505 QETH_DBF_HEX(SETUP
, 2, &card
->qdio
.out_qs
[i
], sizeof(void *));
2506 card
->qdio
.out_qs
[i
]->queue_no
= i
;
2507 /* give outbound qeth_qdio_buffers their qdio_buffers */
2508 for (j
= 0; j
< QDIO_MAX_BUFFERS_PER_Q
; ++j
) {
2509 WARN_ON(card
->qdio
.out_qs
[i
]->bufs
[j
] != NULL
);
2510 if (qeth_init_qdio_out_buf(card
->qdio
.out_qs
[i
], j
))
2511 goto out_freeoutqbufs
;
2516 if (qeth_alloc_cq(card
))
2524 kmem_cache_free(qeth_qdio_outbuf_cache
,
2525 card
->qdio
.out_qs
[i
]->bufs
[j
]);
2526 card
->qdio
.out_qs
[i
]->bufs
[j
] = NULL
;
2530 qeth_free_qdio_out_buf(card
->qdio
.out_qs
[--i
]);
2531 qeth_clear_outq_buffers(card
->qdio
.out_qs
[i
], 1);
2533 kfree(card
->qdio
.out_qs
);
2534 card
->qdio
.out_qs
= NULL
;
2536 qeth_free_buffer_pool(card
);
2538 qeth_free_qdio_queue(card
->qdio
.in_q
);
2539 card
->qdio
.in_q
= NULL
;
2541 atomic_set(&card
->qdio
.state
, QETH_QDIO_UNINITIALIZED
);
2545 static void qeth_free_qdio_buffers(struct qeth_card
*card
)
2549 if (atomic_xchg(&card
->qdio
.state
, QETH_QDIO_UNINITIALIZED
) ==
2550 QETH_QDIO_UNINITIALIZED
)
2554 cancel_delayed_work_sync(&card
->buffer_reclaim_work
);
2555 for (j
= 0; j
< QDIO_MAX_BUFFERS_PER_Q
; ++j
) {
2556 if (card
->qdio
.in_q
->bufs
[j
].rx_skb
)
2557 dev_kfree_skb_any(card
->qdio
.in_q
->bufs
[j
].rx_skb
);
2559 qeth_free_qdio_queue(card
->qdio
.in_q
);
2560 card
->qdio
.in_q
= NULL
;
2561 /* inbound buffer pool */
2562 qeth_free_buffer_pool(card
);
2563 /* free outbound qdio_qs */
2564 if (card
->qdio
.out_qs
) {
2565 for (i
= 0; i
< card
->qdio
.no_out_queues
; ++i
) {
2566 qeth_clear_outq_buffers(card
->qdio
.out_qs
[i
], 1);
2567 qeth_free_qdio_out_buf(card
->qdio
.out_qs
[i
]);
2569 kfree(card
->qdio
.out_qs
);
2570 card
->qdio
.out_qs
= NULL
;
2574 static void qeth_create_qib_param_field(struct qeth_card
*card
,
2578 param_field
[0] = _ascebc
['P'];
2579 param_field
[1] = _ascebc
['C'];
2580 param_field
[2] = _ascebc
['I'];
2581 param_field
[3] = _ascebc
['T'];
2582 *((unsigned int *) (¶m_field
[4])) = QETH_PCI_THRESHOLD_A(card
);
2583 *((unsigned int *) (¶m_field
[8])) = QETH_PCI_THRESHOLD_B(card
);
2584 *((unsigned int *) (¶m_field
[12])) = QETH_PCI_TIMER_VALUE(card
);
2587 static void qeth_create_qib_param_field_blkt(struct qeth_card
*card
,
2590 param_field
[16] = _ascebc
['B'];
2591 param_field
[17] = _ascebc
['L'];
2592 param_field
[18] = _ascebc
['K'];
2593 param_field
[19] = _ascebc
['T'];
2594 *((unsigned int *) (¶m_field
[20])) = card
->info
.blkt
.time_total
;
2595 *((unsigned int *) (¶m_field
[24])) = card
->info
.blkt
.inter_packet
;
2596 *((unsigned int *) (¶m_field
[28])) =
2597 card
->info
.blkt
.inter_packet_jumbo
;
2600 static int qeth_qdio_activate(struct qeth_card
*card
)
2602 QETH_DBF_TEXT(SETUP
, 3, "qdioact");
2603 return qdio_activate(CARD_DDEV(card
));
2606 static int qeth_dm_act(struct qeth_card
*card
)
2609 struct qeth_cmd_buffer
*iob
;
2611 QETH_DBF_TEXT(SETUP
, 2, "dmact");
2613 iob
= qeth_wait_for_buffer(&card
->write
);
2614 memcpy(iob
->data
, DM_ACT
, DM_ACT_SIZE
);
2616 memcpy(QETH_DM_ACT_DEST_ADDR(iob
->data
),
2617 &card
->token
.cm_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2618 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob
->data
),
2619 &card
->token
.ulp_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2620 rc
= qeth_send_control_data(card
, DM_ACT_SIZE
, iob
, NULL
, NULL
);
2624 static int qeth_mpc_initialize(struct qeth_card
*card
)
2628 QETH_DBF_TEXT(SETUP
, 2, "mpcinit");
2630 rc
= qeth_issue_next_read(card
);
2632 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
2635 rc
= qeth_cm_enable(card
);
2637 QETH_DBF_TEXT_(SETUP
, 2, "2err%d", rc
);
2640 rc
= qeth_cm_setup(card
);
2642 QETH_DBF_TEXT_(SETUP
, 2, "3err%d", rc
);
2645 rc
= qeth_ulp_enable(card
);
2647 QETH_DBF_TEXT_(SETUP
, 2, "4err%d", rc
);
2650 rc
= qeth_ulp_setup(card
);
2652 QETH_DBF_TEXT_(SETUP
, 2, "5err%d", rc
);
2655 rc
= qeth_alloc_qdio_buffers(card
);
2657 QETH_DBF_TEXT_(SETUP
, 2, "5err%d", rc
);
2660 rc
= qeth_qdio_establish(card
);
2662 QETH_DBF_TEXT_(SETUP
, 2, "6err%d", rc
);
2663 qeth_free_qdio_buffers(card
);
2666 rc
= qeth_qdio_activate(card
);
2668 QETH_DBF_TEXT_(SETUP
, 2, "7err%d", rc
);
2671 rc
= qeth_dm_act(card
);
2673 QETH_DBF_TEXT_(SETUP
, 2, "8err%d", rc
);
2679 qeth_qdio_clear_card(card
, card
->info
.type
!= QETH_CARD_TYPE_IQD
);
2680 qdio_free(CARD_DDEV(card
));
2684 void qeth_print_status_message(struct qeth_card
*card
)
2686 switch (card
->info
.type
) {
2687 case QETH_CARD_TYPE_OSD
:
2688 case QETH_CARD_TYPE_OSM
:
2689 case QETH_CARD_TYPE_OSX
:
2690 /* VM will use a non-zero first character
2691 * to indicate a HiperSockets like reporting
2692 * of the level OSA sets the first character to zero
2694 if (!card
->info
.mcl_level
[0]) {
2695 sprintf(card
->info
.mcl_level
, "%02x%02x",
2696 card
->info
.mcl_level
[2],
2697 card
->info
.mcl_level
[3]);
2701 case QETH_CARD_TYPE_IQD
:
2702 if ((card
->info
.guestlan
) ||
2703 (card
->info
.mcl_level
[0] & 0x80)) {
2704 card
->info
.mcl_level
[0] = (char) _ebcasc
[(__u8
)
2705 card
->info
.mcl_level
[0]];
2706 card
->info
.mcl_level
[1] = (char) _ebcasc
[(__u8
)
2707 card
->info
.mcl_level
[1]];
2708 card
->info
.mcl_level
[2] = (char) _ebcasc
[(__u8
)
2709 card
->info
.mcl_level
[2]];
2710 card
->info
.mcl_level
[3] = (char) _ebcasc
[(__u8
)
2711 card
->info
.mcl_level
[3]];
2712 card
->info
.mcl_level
[QETH_MCL_LENGTH
] = 0;
2716 memset(&card
->info
.mcl_level
[0], 0, QETH_MCL_LENGTH
+ 1);
2718 dev_info(&card
->gdev
->dev
,
2719 "Device is a%s card%s%s%s\nwith link type %s.\n",
2720 qeth_get_cardname(card
),
2721 (card
->info
.mcl_level
[0]) ? " (level: " : "",
2722 (card
->info
.mcl_level
[0]) ? card
->info
.mcl_level
: "",
2723 (card
->info
.mcl_level
[0]) ? ")" : "",
2724 qeth_get_cardname_short(card
));
2726 EXPORT_SYMBOL_GPL(qeth_print_status_message
);
2728 static void qeth_initialize_working_pool_list(struct qeth_card
*card
)
2730 struct qeth_buffer_pool_entry
*entry
;
2732 QETH_CARD_TEXT(card
, 5, "inwrklst");
2734 list_for_each_entry(entry
,
2735 &card
->qdio
.init_pool
.entry_list
, init_list
) {
2736 qeth_put_buffer_pool_entry(card
, entry
);
2740 static struct qeth_buffer_pool_entry
*qeth_find_free_buffer_pool_entry(
2741 struct qeth_card
*card
)
2743 struct list_head
*plh
;
2744 struct qeth_buffer_pool_entry
*entry
;
2748 if (list_empty(&card
->qdio
.in_buf_pool
.entry_list
))
2751 list_for_each(plh
, &card
->qdio
.in_buf_pool
.entry_list
) {
2752 entry
= list_entry(plh
, struct qeth_buffer_pool_entry
, list
);
2754 for (i
= 0; i
< QETH_MAX_BUFFER_ELEMENTS(card
); ++i
) {
2755 if (page_count(virt_to_page(entry
->elements
[i
])) > 1) {
2761 list_del_init(&entry
->list
);
2766 /* no free buffer in pool so take first one and swap pages */
2767 entry
= list_entry(card
->qdio
.in_buf_pool
.entry_list
.next
,
2768 struct qeth_buffer_pool_entry
, list
);
2769 for (i
= 0; i
< QETH_MAX_BUFFER_ELEMENTS(card
); ++i
) {
2770 if (page_count(virt_to_page(entry
->elements
[i
])) > 1) {
2771 page
= alloc_page(GFP_ATOMIC
);
2775 free_page((unsigned long)entry
->elements
[i
]);
2776 entry
->elements
[i
] = page_address(page
);
2777 if (card
->options
.performance_stats
)
2778 card
->perf_stats
.sg_alloc_page_rx
++;
2782 list_del_init(&entry
->list
);
2786 static int qeth_init_input_buffer(struct qeth_card
*card
,
2787 struct qeth_qdio_buffer
*buf
)
2789 struct qeth_buffer_pool_entry
*pool_entry
;
2792 if ((card
->options
.cq
== QETH_CQ_ENABLED
) && (!buf
->rx_skb
)) {
2793 buf
->rx_skb
= netdev_alloc_skb(card
->dev
,
2794 QETH_RX_PULL_LEN
+ ETH_HLEN
);
2799 pool_entry
= qeth_find_free_buffer_pool_entry(card
);
2804 * since the buffer is accessed only from the input_tasklet
2805 * there shouldn't be a need to synchronize; also, since we use
2806 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2810 buf
->pool_entry
= pool_entry
;
2811 for (i
= 0; i
< QETH_MAX_BUFFER_ELEMENTS(card
); ++i
) {
2812 buf
->buffer
->element
[i
].length
= PAGE_SIZE
;
2813 buf
->buffer
->element
[i
].addr
= pool_entry
->elements
[i
];
2814 if (i
== QETH_MAX_BUFFER_ELEMENTS(card
) - 1)
2815 buf
->buffer
->element
[i
].eflags
= SBAL_EFLAGS_LAST_ENTRY
;
2817 buf
->buffer
->element
[i
].eflags
= 0;
2818 buf
->buffer
->element
[i
].sflags
= 0;
2823 int qeth_init_qdio_queues(struct qeth_card
*card
)
2828 QETH_DBF_TEXT(SETUP
, 2, "initqdqs");
2831 qdio_reset_buffers(card
->qdio
.in_q
->qdio_bufs
, QDIO_MAX_BUFFERS_PER_Q
);
2832 memset(&card
->rx
, 0, sizeof(struct qeth_rx
));
2833 qeth_initialize_working_pool_list(card
);
2834 /*give only as many buffers to hardware as we have buffer pool entries*/
2835 for (i
= 0; i
< card
->qdio
.in_buf_pool
.buf_count
- 1; ++i
)
2836 qeth_init_input_buffer(card
, &card
->qdio
.in_q
->bufs
[i
]);
2837 card
->qdio
.in_q
->next_buf_to_init
=
2838 card
->qdio
.in_buf_pool
.buf_count
- 1;
2839 rc
= do_QDIO(CARD_DDEV(card
), QDIO_FLAG_SYNC_INPUT
, 0, 0,
2840 card
->qdio
.in_buf_pool
.buf_count
- 1);
2842 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
2847 rc
= qeth_cq_init(card
);
2852 /* outbound queue */
2853 for (i
= 0; i
< card
->qdio
.no_out_queues
; ++i
) {
2854 qdio_reset_buffers(card
->qdio
.out_qs
[i
]->qdio_bufs
,
2855 QDIO_MAX_BUFFERS_PER_Q
);
2856 for (j
= 0; j
< QDIO_MAX_BUFFERS_PER_Q
; ++j
) {
2857 qeth_clear_output_buffer(card
->qdio
.out_qs
[i
],
2858 card
->qdio
.out_qs
[i
]->bufs
[j
]);
2860 card
->qdio
.out_qs
[i
]->card
= card
;
2861 card
->qdio
.out_qs
[i
]->next_buf_to_fill
= 0;
2862 card
->qdio
.out_qs
[i
]->do_pack
= 0;
2863 atomic_set(&card
->qdio
.out_qs
[i
]->used_buffers
, 0);
2864 atomic_set(&card
->qdio
.out_qs
[i
]->set_pci_flags_count
, 0);
2865 atomic_set(&card
->qdio
.out_qs
[i
]->state
,
2866 QETH_OUT_Q_UNLOCKED
);
2870 EXPORT_SYMBOL_GPL(qeth_init_qdio_queues
);
2872 static __u8
qeth_get_ipa_adp_type(enum qeth_link_types link_type
)
2874 switch (link_type
) {
2875 case QETH_LINK_TYPE_HSTR
:
2882 static void qeth_fill_ipacmd_header(struct qeth_card
*card
,
2883 struct qeth_ipa_cmd
*cmd
, __u8 command
,
2884 enum qeth_prot_versions prot
)
2886 memset(cmd
, 0, sizeof(struct qeth_ipa_cmd
));
2887 cmd
->hdr
.command
= command
;
2888 cmd
->hdr
.initiator
= IPA_CMD_INITIATOR_HOST
;
2889 /* cmd->hdr.seqno is set by qeth_send_control_data() */
2890 cmd
->hdr
.adapter_type
= qeth_get_ipa_adp_type(card
->info
.link_type
);
2891 cmd
->hdr
.rel_adapter_no
= (u8
) card
->dev
->dev_port
;
2892 if (card
->options
.layer2
)
2893 cmd
->hdr
.prim_version_no
= 2;
2895 cmd
->hdr
.prim_version_no
= 1;
2896 cmd
->hdr
.param_count
= 1;
2897 cmd
->hdr
.prot_version
= prot
;
2898 cmd
->hdr
.ipa_supported
= 0;
2899 cmd
->hdr
.ipa_enabled
= 0;
2902 struct qeth_cmd_buffer
*qeth_get_ipacmd_buffer(struct qeth_card
*card
,
2903 enum qeth_ipa_cmds ipacmd
, enum qeth_prot_versions prot
)
2905 struct qeth_cmd_buffer
*iob
;
2907 iob
= qeth_get_buffer(&card
->write
);
2909 qeth_fill_ipacmd_header(card
, __ipa_cmd(iob
), ipacmd
, prot
);
2911 dev_warn(&card
->gdev
->dev
,
2912 "The qeth driver ran out of channel command buffers\n");
2913 QETH_DBF_MESSAGE(1, "%s The qeth driver ran out of channel command buffers",
2914 dev_name(&card
->gdev
->dev
));
2919 EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer
);
2921 void qeth_prepare_ipa_cmd(struct qeth_card
*card
, struct qeth_cmd_buffer
*iob
)
2923 u8 prot_type
= qeth_mpc_select_prot_type(card
);
2925 memcpy(iob
->data
, IPA_PDU_HEADER
, IPA_PDU_HEADER_SIZE
);
2926 memcpy(QETH_IPA_CMD_PROT_TYPE(iob
->data
), &prot_type
, 1);
2927 memcpy(QETH_IPA_CMD_DEST_ADDR(iob
->data
),
2928 &card
->token
.ulp_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2930 EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd
);
2933 * qeth_send_ipa_cmd() - send an IPA command
2935 * See qeth_send_control_data() for explanation of the arguments.
2938 int qeth_send_ipa_cmd(struct qeth_card
*card
, struct qeth_cmd_buffer
*iob
,
2939 int (*reply_cb
)(struct qeth_card
*, struct qeth_reply
*,
2945 QETH_CARD_TEXT(card
, 4, "sendipa");
2946 qeth_prepare_ipa_cmd(card
, iob
);
2947 rc
= qeth_send_control_data(card
, IPA_CMD_LENGTH
,
2948 iob
, reply_cb
, reply_param
);
2950 qeth_clear_ipacmd_list(card
);
2951 qeth_schedule_recovery(card
);
2955 EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd
);
2957 static int qeth_send_startlan(struct qeth_card
*card
)
2960 struct qeth_cmd_buffer
*iob
;
2962 QETH_DBF_TEXT(SETUP
, 2, "strtlan");
2964 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_STARTLAN
, 0);
2967 rc
= qeth_send_ipa_cmd(card
, iob
, NULL
, NULL
);
2971 static int qeth_setadpparms_inspect_rc(struct qeth_ipa_cmd
*cmd
)
2973 if (!cmd
->hdr
.return_code
)
2974 cmd
->hdr
.return_code
=
2975 cmd
->data
.setadapterparms
.hdr
.return_code
;
2976 return cmd
->hdr
.return_code
;
2979 static int qeth_query_setadapterparms_cb(struct qeth_card
*card
,
2980 struct qeth_reply
*reply
, unsigned long data
)
2982 struct qeth_ipa_cmd
*cmd
= (struct qeth_ipa_cmd
*) data
;
2984 QETH_CARD_TEXT(card
, 3, "quyadpcb");
2985 if (qeth_setadpparms_inspect_rc(cmd
))
2988 if (cmd
->data
.setadapterparms
.data
.query_cmds_supp
.lan_type
& 0x7f) {
2989 card
->info
.link_type
=
2990 cmd
->data
.setadapterparms
.data
.query_cmds_supp
.lan_type
;
2991 QETH_DBF_TEXT_(SETUP
, 2, "lnk %d", card
->info
.link_type
);
2993 card
->options
.adp
.supported_funcs
=
2994 cmd
->data
.setadapterparms
.data
.query_cmds_supp
.supported_cmds
;
2998 static struct qeth_cmd_buffer
*qeth_get_adapter_cmd(struct qeth_card
*card
,
2999 __u32 command
, __u32 cmdlen
)
3001 struct qeth_cmd_buffer
*iob
;
3002 struct qeth_ipa_cmd
*cmd
;
3004 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_SETADAPTERPARMS
,
3007 cmd
= __ipa_cmd(iob
);
3008 cmd
->data
.setadapterparms
.hdr
.cmdlength
= cmdlen
;
3009 cmd
->data
.setadapterparms
.hdr
.command_code
= command
;
3010 cmd
->data
.setadapterparms
.hdr
.used_total
= 1;
3011 cmd
->data
.setadapterparms
.hdr
.seq_no
= 1;
3017 static int qeth_query_setadapterparms(struct qeth_card
*card
)
3020 struct qeth_cmd_buffer
*iob
;
3022 QETH_CARD_TEXT(card
, 3, "queryadp");
3023 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_QUERY_COMMANDS_SUPPORTED
,
3024 sizeof(struct qeth_ipacmd_setadpparms
));
3027 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_query_setadapterparms_cb
, NULL
);
3031 static int qeth_query_ipassists_cb(struct qeth_card
*card
,
3032 struct qeth_reply
*reply
, unsigned long data
)
3034 struct qeth_ipa_cmd
*cmd
;
3036 QETH_DBF_TEXT(SETUP
, 2, "qipasscb");
3038 cmd
= (struct qeth_ipa_cmd
*) data
;
3040 switch (cmd
->hdr
.return_code
) {
3041 case IPA_RC_NOTSUPP
:
3042 case IPA_RC_L2_UNSUPPORTED_CMD
:
3043 QETH_DBF_TEXT(SETUP
, 2, "ipaunsup");
3044 card
->options
.ipa4
.supported_funcs
|= IPA_SETADAPTERPARMS
;
3045 card
->options
.ipa6
.supported_funcs
|= IPA_SETADAPTERPARMS
;
3048 if (cmd
->hdr
.return_code
) {
3049 QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Unhandled "
3051 dev_name(&card
->gdev
->dev
),
3052 cmd
->hdr
.return_code
);
3057 if (cmd
->hdr
.prot_version
== QETH_PROT_IPV4
) {
3058 card
->options
.ipa4
.supported_funcs
= cmd
->hdr
.ipa_supported
;
3059 card
->options
.ipa4
.enabled_funcs
= cmd
->hdr
.ipa_enabled
;
3060 } else if (cmd
->hdr
.prot_version
== QETH_PROT_IPV6
) {
3061 card
->options
.ipa6
.supported_funcs
= cmd
->hdr
.ipa_supported
;
3062 card
->options
.ipa6
.enabled_funcs
= cmd
->hdr
.ipa_enabled
;
3064 QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Flawed LIC detected"
3065 "\n", dev_name(&card
->gdev
->dev
));
3069 static int qeth_query_ipassists(struct qeth_card
*card
,
3070 enum qeth_prot_versions prot
)
3073 struct qeth_cmd_buffer
*iob
;
3075 QETH_DBF_TEXT_(SETUP
, 2, "qipassi%i", prot
);
3076 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_QIPASSIST
, prot
);
3079 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_query_ipassists_cb
, NULL
);
3083 static int qeth_query_switch_attributes_cb(struct qeth_card
*card
,
3084 struct qeth_reply
*reply
, unsigned long data
)
3086 struct qeth_ipa_cmd
*cmd
= (struct qeth_ipa_cmd
*) data
;
3087 struct qeth_query_switch_attributes
*attrs
;
3088 struct qeth_switch_info
*sw_info
;
3090 QETH_CARD_TEXT(card
, 2, "qswiatcb");
3091 if (qeth_setadpparms_inspect_rc(cmd
))
3094 sw_info
= (struct qeth_switch_info
*)reply
->param
;
3095 attrs
= &cmd
->data
.setadapterparms
.data
.query_switch_attributes
;
3096 sw_info
->capabilities
= attrs
->capabilities
;
3097 sw_info
->settings
= attrs
->settings
;
3098 QETH_CARD_TEXT_(card
, 2, "%04x%04x", sw_info
->capabilities
,
3103 int qeth_query_switch_attributes(struct qeth_card
*card
,
3104 struct qeth_switch_info
*sw_info
)
3106 struct qeth_cmd_buffer
*iob
;
3108 QETH_CARD_TEXT(card
, 2, "qswiattr");
3109 if (!qeth_adp_supported(card
, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES
))
3111 if (!netif_carrier_ok(card
->dev
))
3113 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES
,
3114 sizeof(struct qeth_ipacmd_setadpparms_hdr
));
3117 return qeth_send_ipa_cmd(card
, iob
,
3118 qeth_query_switch_attributes_cb
, sw_info
);
3121 static int qeth_query_setdiagass_cb(struct qeth_card
*card
,
3122 struct qeth_reply
*reply
, unsigned long data
)
3124 struct qeth_ipa_cmd
*cmd
;
3127 cmd
= (struct qeth_ipa_cmd
*)data
;
3128 rc
= cmd
->hdr
.return_code
;
3130 QETH_CARD_TEXT_(card
, 2, "diagq:%x", rc
);
3132 card
->info
.diagass_support
= cmd
->data
.diagass
.ext
;
3136 static int qeth_query_setdiagass(struct qeth_card
*card
)
3138 struct qeth_cmd_buffer
*iob
;
3139 struct qeth_ipa_cmd
*cmd
;
3141 QETH_DBF_TEXT(SETUP
, 2, "qdiagass");
3142 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_SET_DIAG_ASS
, 0);
3145 cmd
= __ipa_cmd(iob
);
3146 cmd
->data
.diagass
.subcmd_len
= 16;
3147 cmd
->data
.diagass
.subcmd
= QETH_DIAGS_CMD_QUERY
;
3148 return qeth_send_ipa_cmd(card
, iob
, qeth_query_setdiagass_cb
, NULL
);
3151 static void qeth_get_trap_id(struct qeth_card
*card
, struct qeth_trap_id
*tid
)
3153 unsigned long info
= get_zeroed_page(GFP_KERNEL
);
3154 struct sysinfo_2_2_2
*info222
= (struct sysinfo_2_2_2
*)info
;
3155 struct sysinfo_3_2_2
*info322
= (struct sysinfo_3_2_2
*)info
;
3156 struct ccw_dev_id ccwid
;
3159 tid
->chpid
= card
->info
.chpid
;
3160 ccw_device_get_id(CARD_RDEV(card
), &ccwid
);
3161 tid
->ssid
= ccwid
.ssid
;
3162 tid
->devno
= ccwid
.devno
;
3165 level
= stsi(NULL
, 0, 0, 0);
3166 if ((level
>= 2) && (stsi(info222
, 2, 2, 2) == 0))
3167 tid
->lparnr
= info222
->lpar_number
;
3168 if ((level
>= 3) && (stsi(info322
, 3, 2, 2) == 0)) {
3169 EBCASC(info322
->vm
[0].name
, sizeof(info322
->vm
[0].name
));
3170 memcpy(tid
->vmname
, info322
->vm
[0].name
, sizeof(tid
->vmname
));
3176 static int qeth_hw_trap_cb(struct qeth_card
*card
,
3177 struct qeth_reply
*reply
, unsigned long data
)
3179 struct qeth_ipa_cmd
*cmd
;
3182 cmd
= (struct qeth_ipa_cmd
*)data
;
3183 rc
= cmd
->hdr
.return_code
;
3185 QETH_CARD_TEXT_(card
, 2, "trapc:%x", rc
);
3189 int qeth_hw_trap(struct qeth_card
*card
, enum qeth_diags_trap_action action
)
3191 struct qeth_cmd_buffer
*iob
;
3192 struct qeth_ipa_cmd
*cmd
;
3194 QETH_DBF_TEXT(SETUP
, 2, "diagtrap");
3195 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_SET_DIAG_ASS
, 0);
3198 cmd
= __ipa_cmd(iob
);
3199 cmd
->data
.diagass
.subcmd_len
= 80;
3200 cmd
->data
.diagass
.subcmd
= QETH_DIAGS_CMD_TRAP
;
3201 cmd
->data
.diagass
.type
= 1;
3202 cmd
->data
.diagass
.action
= action
;
3204 case QETH_DIAGS_TRAP_ARM
:
3205 cmd
->data
.diagass
.options
= 0x0003;
3206 cmd
->data
.diagass
.ext
= 0x00010000 +
3207 sizeof(struct qeth_trap_id
);
3208 qeth_get_trap_id(card
,
3209 (struct qeth_trap_id
*)cmd
->data
.diagass
.cdata
);
3211 case QETH_DIAGS_TRAP_DISARM
:
3212 cmd
->data
.diagass
.options
= 0x0001;
3214 case QETH_DIAGS_TRAP_CAPTURE
:
3217 return qeth_send_ipa_cmd(card
, iob
, qeth_hw_trap_cb
, NULL
);
3219 EXPORT_SYMBOL_GPL(qeth_hw_trap
);
3221 static int qeth_check_qdio_errors(struct qeth_card
*card
,
3222 struct qdio_buffer
*buf
,
3223 unsigned int qdio_error
,
3224 const char *dbftext
)
3227 QETH_CARD_TEXT(card
, 2, dbftext
);
3228 QETH_CARD_TEXT_(card
, 2, " F15=%02X",
3229 buf
->element
[15].sflags
);
3230 QETH_CARD_TEXT_(card
, 2, " F14=%02X",
3231 buf
->element
[14].sflags
);
3232 QETH_CARD_TEXT_(card
, 2, " qerr=%X", qdio_error
);
3233 if ((buf
->element
[15].sflags
) == 0x12) {
3234 card
->stats
.rx_dropped
++;
3242 static void qeth_queue_input_buffer(struct qeth_card
*card
, int index
)
3244 struct qeth_qdio_q
*queue
= card
->qdio
.in_q
;
3245 struct list_head
*lh
;
3251 count
= (index
< queue
->next_buf_to_init
)?
3252 card
->qdio
.in_buf_pool
.buf_count
-
3253 (queue
->next_buf_to_init
- index
) :
3254 card
->qdio
.in_buf_pool
.buf_count
-
3255 (queue
->next_buf_to_init
+ QDIO_MAX_BUFFERS_PER_Q
- index
);
3256 /* only requeue at a certain threshold to avoid SIGAs */
3257 if (count
>= QETH_IN_BUF_REQUEUE_THRESHOLD(card
)) {
3258 for (i
= queue
->next_buf_to_init
;
3259 i
< queue
->next_buf_to_init
+ count
; ++i
) {
3260 if (qeth_init_input_buffer(card
,
3261 &queue
->bufs
[i
% QDIO_MAX_BUFFERS_PER_Q
])) {
3268 if (newcount
< count
) {
3269 /* we are in memory shortage so we switch back to
3270 traditional skb allocation and drop packages */
3271 atomic_set(&card
->force_alloc_skb
, 3);
3274 atomic_add_unless(&card
->force_alloc_skb
, -1, 0);
3279 list_for_each(lh
, &card
->qdio
.in_buf_pool
.entry_list
)
3281 if (i
== card
->qdio
.in_buf_pool
.buf_count
) {
3282 QETH_CARD_TEXT(card
, 2, "qsarbw");
3283 card
->reclaim_index
= index
;
3284 schedule_delayed_work(
3285 &card
->buffer_reclaim_work
,
3286 QETH_RECLAIM_WORK_TIME
);
3292 * according to old code it should be avoided to requeue all
3293 * 128 buffers in order to benefit from PCI avoidance.
3294 * this function keeps at least one buffer (the buffer at
3295 * 'index') un-requeued -> this buffer is the first buffer that
3296 * will be requeued the next time
3298 if (card
->options
.performance_stats
) {
3299 card
->perf_stats
.inbound_do_qdio_cnt
++;
3300 card
->perf_stats
.inbound_do_qdio_start_time
=
3303 rc
= do_QDIO(CARD_DDEV(card
), QDIO_FLAG_SYNC_INPUT
, 0,
3304 queue
->next_buf_to_init
, count
);
3305 if (card
->options
.performance_stats
)
3306 card
->perf_stats
.inbound_do_qdio_time
+=
3308 card
->perf_stats
.inbound_do_qdio_start_time
;
3310 QETH_CARD_TEXT(card
, 2, "qinberr");
3312 queue
->next_buf_to_init
= (queue
->next_buf_to_init
+ count
) %
3313 QDIO_MAX_BUFFERS_PER_Q
;
3317 static void qeth_buffer_reclaim_work(struct work_struct
*work
)
3319 struct qeth_card
*card
= container_of(work
, struct qeth_card
,
3320 buffer_reclaim_work
.work
);
3322 QETH_CARD_TEXT_(card
, 2, "brw:%x", card
->reclaim_index
);
3323 qeth_queue_input_buffer(card
, card
->reclaim_index
);
3326 static void qeth_handle_send_error(struct qeth_card
*card
,
3327 struct qeth_qdio_out_buffer
*buffer
, unsigned int qdio_err
)
3329 int sbalf15
= buffer
->buffer
->element
[15].sflags
;
3331 QETH_CARD_TEXT(card
, 6, "hdsnderr");
3332 if (card
->info
.type
== QETH_CARD_TYPE_IQD
) {
3339 qeth_check_qdio_errors(card
, buffer
->buffer
, qdio_err
, "qouterr");
3344 if ((sbalf15
>= 15) && (sbalf15
<= 31))
3347 QETH_CARD_TEXT(card
, 1, "lnkfail");
3348 QETH_CARD_TEXT_(card
, 1, "%04x %02x",
3349 (u16
)qdio_err
, (u8
)sbalf15
);
3353 * qeth_prep_flush_pack_buffer - Prepares flushing of a packing buffer.
3354 * @queue: queue to check for packing buffer
3356 * Returns number of buffers that were prepared for flush.
3358 static int qeth_prep_flush_pack_buffer(struct qeth_qdio_out_q
*queue
)
3360 struct qeth_qdio_out_buffer
*buffer
;
3362 buffer
= queue
->bufs
[queue
->next_buf_to_fill
];
3363 if ((atomic_read(&buffer
->state
) == QETH_QDIO_BUF_EMPTY
) &&
3364 (buffer
->next_element_to_fill
> 0)) {
3365 /* it's a packing buffer */
3366 atomic_set(&buffer
->state
, QETH_QDIO_BUF_PRIMED
);
3367 queue
->next_buf_to_fill
=
3368 (queue
->next_buf_to_fill
+ 1) % QDIO_MAX_BUFFERS_PER_Q
;
3375 * Switched to packing state if the number of used buffers on a queue
3376 * reaches a certain limit.
3378 static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q
*queue
)
3380 if (!queue
->do_pack
) {
3381 if (atomic_read(&queue
->used_buffers
)
3382 >= QETH_HIGH_WATERMARK_PACK
){
3383 /* switch non-PACKING -> PACKING */
3384 QETH_CARD_TEXT(queue
->card
, 6, "np->pack");
3385 if (queue
->card
->options
.performance_stats
)
3386 queue
->card
->perf_stats
.sc_dp_p
++;
3393 * Switches from packing to non-packing mode. If there is a packing
3394 * buffer on the queue this buffer will be prepared to be flushed.
3395 * In that case 1 is returned to inform the caller. If no buffer
3396 * has to be flushed, zero is returned.
3398 static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q
*queue
)
3400 if (queue
->do_pack
) {
3401 if (atomic_read(&queue
->used_buffers
)
3402 <= QETH_LOW_WATERMARK_PACK
) {
3403 /* switch PACKING -> non-PACKING */
3404 QETH_CARD_TEXT(queue
->card
, 6, "pack->np");
3405 if (queue
->card
->options
.performance_stats
)
3406 queue
->card
->perf_stats
.sc_p_dp
++;
3408 return qeth_prep_flush_pack_buffer(queue
);
3414 static void qeth_flush_buffers(struct qeth_qdio_out_q
*queue
, int index
,
3417 struct qeth_qdio_out_buffer
*buf
;
3420 unsigned int qdio_flags
;
3422 for (i
= index
; i
< index
+ count
; ++i
) {
3423 int bidx
= i
% QDIO_MAX_BUFFERS_PER_Q
;
3424 buf
= queue
->bufs
[bidx
];
3425 buf
->buffer
->element
[buf
->next_element_to_fill
- 1].eflags
|=
3426 SBAL_EFLAGS_LAST_ENTRY
;
3428 if (queue
->bufstates
)
3429 queue
->bufstates
[bidx
].user
= buf
;
3431 if (queue
->card
->info
.type
== QETH_CARD_TYPE_IQD
)
3434 if (!queue
->do_pack
) {
3435 if ((atomic_read(&queue
->used_buffers
) >=
3436 (QETH_HIGH_WATERMARK_PACK
-
3437 QETH_WATERMARK_PACK_FUZZ
)) &&
3438 !atomic_read(&queue
->set_pci_flags_count
)) {
3439 /* it's likely that we'll go to packing
3441 atomic_inc(&queue
->set_pci_flags_count
);
3442 buf
->buffer
->element
[0].sflags
|= SBAL_SFLAGS0_PCI_REQ
;
3445 if (!atomic_read(&queue
->set_pci_flags_count
)) {
3447 * there's no outstanding PCI any more, so we
3448 * have to request a PCI to be sure the the PCI
3449 * will wake at some time in the future then we
3450 * can flush packed buffers that might still be
3451 * hanging around, which can happen if no
3452 * further send was requested by the stack
3454 atomic_inc(&queue
->set_pci_flags_count
);
3455 buf
->buffer
->element
[0].sflags
|= SBAL_SFLAGS0_PCI_REQ
;
3460 netif_trans_update(queue
->card
->dev
);
3461 if (queue
->card
->options
.performance_stats
) {
3462 queue
->card
->perf_stats
.outbound_do_qdio_cnt
++;
3463 queue
->card
->perf_stats
.outbound_do_qdio_start_time
=
3466 qdio_flags
= QDIO_FLAG_SYNC_OUTPUT
;
3467 if (atomic_read(&queue
->set_pci_flags_count
))
3468 qdio_flags
|= QDIO_FLAG_PCI_OUT
;
3469 atomic_add(count
, &queue
->used_buffers
);
3471 rc
= do_QDIO(CARD_DDEV(queue
->card
), qdio_flags
,
3472 queue
->queue_no
, index
, count
);
3473 if (queue
->card
->options
.performance_stats
)
3474 queue
->card
->perf_stats
.outbound_do_qdio_time
+=
3476 queue
->card
->perf_stats
.outbound_do_qdio_start_time
;
3478 queue
->card
->stats
.tx_errors
+= count
;
3479 /* ignore temporary SIGA errors without busy condition */
3482 QETH_CARD_TEXT(queue
->card
, 2, "flushbuf");
3483 QETH_CARD_TEXT_(queue
->card
, 2, " q%d", queue
->queue_no
);
3484 QETH_CARD_TEXT_(queue
->card
, 2, " idx%d", index
);
3485 QETH_CARD_TEXT_(queue
->card
, 2, " c%d", count
);
3486 QETH_CARD_TEXT_(queue
->card
, 2, " err%d", rc
);
3488 /* this must not happen under normal circumstances. if it
3489 * happens something is really wrong -> recover */
3490 qeth_schedule_recovery(queue
->card
);
3493 if (queue
->card
->options
.performance_stats
)
3494 queue
->card
->perf_stats
.bufs_sent
+= count
;
3497 static void qeth_check_outbound_queue(struct qeth_qdio_out_q
*queue
)
3501 int q_was_packing
= 0;
3504 * check if weed have to switch to non-packing mode or if
3505 * we have to get a pci flag out on the queue
3507 if ((atomic_read(&queue
->used_buffers
) <= QETH_LOW_WATERMARK_PACK
) ||
3508 !atomic_read(&queue
->set_pci_flags_count
)) {
3509 if (atomic_xchg(&queue
->state
, QETH_OUT_Q_LOCKED_FLUSH
) ==
3510 QETH_OUT_Q_UNLOCKED
) {
3512 * If we get in here, there was no action in
3513 * do_send_packet. So, we check if there is a
3514 * packing buffer to be flushed here.
3516 netif_stop_queue(queue
->card
->dev
);
3517 index
= queue
->next_buf_to_fill
;
3518 q_was_packing
= queue
->do_pack
;
3519 /* queue->do_pack may change */
3521 flush_cnt
+= qeth_switch_to_nonpacking_if_needed(queue
);
3523 !atomic_read(&queue
->set_pci_flags_count
))
3524 flush_cnt
+= qeth_prep_flush_pack_buffer(queue
);
3525 if (queue
->card
->options
.performance_stats
&&
3527 queue
->card
->perf_stats
.bufs_sent_pack
+=
3530 qeth_flush_buffers(queue
, index
, flush_cnt
);
3531 atomic_set(&queue
->state
, QETH_OUT_Q_UNLOCKED
);
3536 static void qeth_qdio_start_poll(struct ccw_device
*ccwdev
, int queue
,
3537 unsigned long card_ptr
)
3539 struct qeth_card
*card
= (struct qeth_card
*)card_ptr
;
3541 if (card
->dev
->flags
& IFF_UP
)
3542 napi_schedule(&card
->napi
);
3545 int qeth_configure_cq(struct qeth_card
*card
, enum qeth_cq cq
)
3549 if (card
->options
.cq
== QETH_CQ_NOTAVAILABLE
) {
3553 if (card
->options
.cq
== cq
) {
3558 if (card
->state
!= CARD_STATE_DOWN
&&
3559 card
->state
!= CARD_STATE_RECOVER
) {
3564 qeth_free_qdio_buffers(card
);
3565 card
->options
.cq
= cq
;
3572 EXPORT_SYMBOL_GPL(qeth_configure_cq
);
3574 static void qeth_qdio_cq_handler(struct qeth_card
*card
, unsigned int qdio_err
,
3575 unsigned int queue
, int first_element
,
3578 struct qeth_qdio_q
*cq
= card
->qdio
.c_q
;
3582 if (!qeth_is_cq(card
, queue
))
3585 QETH_CARD_TEXT_(card
, 5, "qcqhe%d", first_element
);
3586 QETH_CARD_TEXT_(card
, 5, "qcqhc%d", count
);
3587 QETH_CARD_TEXT_(card
, 5, "qcqherr%d", qdio_err
);
3590 netif_stop_queue(card
->dev
);
3591 qeth_schedule_recovery(card
);
3595 if (card
->options
.performance_stats
) {
3596 card
->perf_stats
.cq_cnt
++;
3597 card
->perf_stats
.cq_start_time
= qeth_get_micros();
3600 for (i
= first_element
; i
< first_element
+ count
; ++i
) {
3601 int bidx
= i
% QDIO_MAX_BUFFERS_PER_Q
;
3602 struct qdio_buffer
*buffer
= cq
->qdio_bufs
[bidx
];
3605 while ((e
< QDIO_MAX_ELEMENTS_PER_BUFFER
) &&
3606 buffer
->element
[e
].addr
) {
3607 unsigned long phys_aob_addr
;
3609 phys_aob_addr
= (unsigned long) buffer
->element
[e
].addr
;
3610 qeth_qdio_handle_aob(card
, phys_aob_addr
);
3613 qeth_scrub_qdio_buffer(buffer
, QDIO_MAX_ELEMENTS_PER_BUFFER
);
3615 rc
= do_QDIO(CARD_DDEV(card
), QDIO_FLAG_SYNC_INPUT
, queue
,
3616 card
->qdio
.c_q
->next_buf_to_init
,
3619 dev_warn(&card
->gdev
->dev
,
3620 "QDIO reported an error, rc=%i\n", rc
);
3621 QETH_CARD_TEXT(card
, 2, "qcqherr");
3623 card
->qdio
.c_q
->next_buf_to_init
= (card
->qdio
.c_q
->next_buf_to_init
3624 + count
) % QDIO_MAX_BUFFERS_PER_Q
;
3626 netif_wake_queue(card
->dev
);
3628 if (card
->options
.performance_stats
) {
3629 int delta_t
= qeth_get_micros();
3630 delta_t
-= card
->perf_stats
.cq_start_time
;
3631 card
->perf_stats
.cq_time
+= delta_t
;
3637 static void qeth_qdio_input_handler(struct ccw_device
*ccwdev
,
3638 unsigned int qdio_err
, int queue
,
3639 int first_elem
, int count
,
3640 unsigned long card_ptr
)
3642 struct qeth_card
*card
= (struct qeth_card
*)card_ptr
;
3644 QETH_CARD_TEXT_(card
, 2, "qihq%d", queue
);
3645 QETH_CARD_TEXT_(card
, 2, "qiec%d", qdio_err
);
3647 if (qeth_is_cq(card
, queue
))
3648 qeth_qdio_cq_handler(card
, qdio_err
, queue
, first_elem
, count
);
3650 qeth_schedule_recovery(card
);
3653 static void qeth_qdio_output_handler(struct ccw_device
*ccwdev
,
3654 unsigned int qdio_error
, int __queue
,
3655 int first_element
, int count
,
3656 unsigned long card_ptr
)
3658 struct qeth_card
*card
= (struct qeth_card
*) card_ptr
;
3659 struct qeth_qdio_out_q
*queue
= card
->qdio
.out_qs
[__queue
];
3660 struct qeth_qdio_out_buffer
*buffer
;
3663 QETH_CARD_TEXT(card
, 6, "qdouhdl");
3664 if (qdio_error
& QDIO_ERROR_FATAL
) {
3665 QETH_CARD_TEXT(card
, 2, "achkcond");
3666 netif_stop_queue(card
->dev
);
3667 qeth_schedule_recovery(card
);
3670 if (card
->options
.performance_stats
) {
3671 card
->perf_stats
.outbound_handler_cnt
++;
3672 card
->perf_stats
.outbound_handler_start_time
=
3675 for (i
= first_element
; i
< (first_element
+ count
); ++i
) {
3676 int bidx
= i
% QDIO_MAX_BUFFERS_PER_Q
;
3677 buffer
= queue
->bufs
[bidx
];
3678 qeth_handle_send_error(card
, buffer
, qdio_error
);
3680 if (queue
->bufstates
&&
3681 (queue
->bufstates
[bidx
].flags
&
3682 QDIO_OUTBUF_STATE_FLAG_PENDING
) != 0) {
3683 WARN_ON_ONCE(card
->options
.cq
!= QETH_CQ_ENABLED
);
3685 if (atomic_cmpxchg(&buffer
->state
,
3686 QETH_QDIO_BUF_PRIMED
,
3687 QETH_QDIO_BUF_PENDING
) ==
3688 QETH_QDIO_BUF_PRIMED
) {
3689 qeth_notify_skbs(queue
, buffer
,
3692 QETH_CARD_TEXT_(queue
->card
, 5, "pel%d", bidx
);
3694 /* prepare the queue slot for re-use: */
3695 qeth_scrub_qdio_buffer(buffer
->buffer
,
3696 QETH_MAX_BUFFER_ELEMENTS(card
));
3697 if (qeth_init_qdio_out_buf(queue
, bidx
)) {
3698 QETH_CARD_TEXT(card
, 2, "outofbuf");
3699 qeth_schedule_recovery(card
);
3702 if (card
->options
.cq
== QETH_CQ_ENABLED
) {
3703 enum iucv_tx_notify n
;
3705 n
= qeth_compute_cq_notification(
3706 buffer
->buffer
->element
[15].sflags
, 0);
3707 qeth_notify_skbs(queue
, buffer
, n
);
3710 qeth_clear_output_buffer(queue
, buffer
);
3712 qeth_cleanup_handled_pending(queue
, bidx
, 0);
3714 atomic_sub(count
, &queue
->used_buffers
);
3715 /* check if we need to do something on this outbound queue */
3716 if (card
->info
.type
!= QETH_CARD_TYPE_IQD
)
3717 qeth_check_outbound_queue(queue
);
3719 netif_wake_queue(queue
->card
->dev
);
3720 if (card
->options
.performance_stats
)
3721 card
->perf_stats
.outbound_handler_time
+= qeth_get_micros() -
3722 card
->perf_stats
.outbound_handler_start_time
;
3725 /* We cannot use outbound queue 3 for unicast packets on HiperSockets */
3726 static inline int qeth_cut_iqd_prio(struct qeth_card
*card
, int queue_num
)
3728 if ((card
->info
.type
== QETH_CARD_TYPE_IQD
) && (queue_num
== 3))
3734 * Note: Function assumes that we have 4 outbound queues.
3736 int qeth_get_priority_queue(struct qeth_card
*card
, struct sk_buff
*skb
,
3742 switch (card
->qdio
.do_prio_queueing
) {
3743 case QETH_PRIO_Q_ING_TOS
:
3744 case QETH_PRIO_Q_ING_PREC
:
3747 tos
= ipv4_get_dsfield(ip_hdr(skb
));
3750 tos
= ipv6_get_dsfield(ipv6_hdr(skb
));
3753 return card
->qdio
.default_out_queue
;
3755 if (card
->qdio
.do_prio_queueing
== QETH_PRIO_Q_ING_PREC
)
3756 return qeth_cut_iqd_prio(card
, ~tos
>> 6 & 3);
3757 if (tos
& IPTOS_MINCOST
)
3758 return qeth_cut_iqd_prio(card
, 3);
3759 if (tos
& IPTOS_RELIABILITY
)
3761 if (tos
& IPTOS_THROUGHPUT
)
3763 if (tos
& IPTOS_LOWDELAY
)
3766 case QETH_PRIO_Q_ING_SKB
:
3767 if (skb
->priority
> 5)
3769 return qeth_cut_iqd_prio(card
, ~skb
->priority
>> 1 & 3);
3770 case QETH_PRIO_Q_ING_VLAN
:
3771 tci
= &((struct ethhdr
*)skb
->data
)->h_proto
;
3772 if (be16_to_cpu(*tci
) == ETH_P_8021Q
)
3773 return qeth_cut_iqd_prio(card
,
3774 ~be16_to_cpu(*(tci
+ 1)) >> (VLAN_PRIO_SHIFT
+ 1) & 3);
3779 return card
->qdio
.default_out_queue
;
3781 EXPORT_SYMBOL_GPL(qeth_get_priority_queue
);
3784 * qeth_get_elements_for_frags() - find number of SBALEs for skb frags.
3787 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
3788 * fragmented part of the SKB. Returns zero for linear SKB.
3790 int qeth_get_elements_for_frags(struct sk_buff
*skb
)
3792 int cnt
, elements
= 0;
3794 for (cnt
= 0; cnt
< skb_shinfo(skb
)->nr_frags
; cnt
++) {
3795 struct skb_frag_struct
*frag
= &skb_shinfo(skb
)->frags
[cnt
];
3797 elements
+= qeth_get_elements_for_range(
3798 (addr_t
)skb_frag_address(frag
),
3799 (addr_t
)skb_frag_address(frag
) + skb_frag_size(frag
));
3803 EXPORT_SYMBOL_GPL(qeth_get_elements_for_frags
);
3805 static unsigned int qeth_count_elements(struct sk_buff
*skb
, int data_offset
)
3807 unsigned int elements
= qeth_get_elements_for_frags(skb
);
3808 addr_t end
= (addr_t
)skb
->data
+ skb_headlen(skb
);
3809 addr_t start
= (addr_t
)skb
->data
+ data_offset
;
3812 elements
+= qeth_get_elements_for_range(start
, end
);
3817 * qeth_get_elements_no() - find number of SBALEs for skb data, inc. frags.
3818 * @card: qeth card structure, to check max. elems.
3820 * @extra_elems: extra elems needed, to check against max.
3821 * @data_offset: range starts at skb->data + data_offset
3823 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
3824 * skb data, including linear part and fragments. Checks if the result plus
3825 * extra_elems fits under the limit for the card. Returns 0 if it does not.
3826 * Note: extra_elems is not included in the returned result.
3828 int qeth_get_elements_no(struct qeth_card
*card
,
3829 struct sk_buff
*skb
, int extra_elems
, int data_offset
)
3831 int elements
= qeth_count_elements(skb
, data_offset
);
3833 if ((elements
+ extra_elems
) > QETH_MAX_BUFFER_ELEMENTS(card
)) {
3834 QETH_DBF_MESSAGE(2, "Invalid size of IP packet "
3835 "(Number=%d / Length=%d). Discarded.\n",
3836 elements
+ extra_elems
, skb
->len
);
3841 EXPORT_SYMBOL_GPL(qeth_get_elements_no
);
3843 int qeth_hdr_chk_and_bounce(struct sk_buff
*skb
, struct qeth_hdr
**hdr
, int len
)
3845 int hroom
, inpage
, rest
;
3847 if (((unsigned long)skb
->data
& PAGE_MASK
) !=
3848 (((unsigned long)skb
->data
+ len
- 1) & PAGE_MASK
)) {
3849 hroom
= skb_headroom(skb
);
3850 inpage
= PAGE_SIZE
- ((unsigned long) skb
->data
% PAGE_SIZE
);
3851 rest
= len
- inpage
;
3854 memmove(skb
->data
- rest
, skb
->data
, skb_headlen(skb
));
3857 *hdr
= (struct qeth_hdr
*)skb
->data
;
3858 QETH_DBF_MESSAGE(2, "skb bounce len: %d rest: %d\n", len
, rest
);
3862 EXPORT_SYMBOL_GPL(qeth_hdr_chk_and_bounce
);
3865 * qeth_add_hw_header() - add a HW header to an skb.
3866 * @skb: skb that the HW header should be added to.
3867 * @hdr: double pointer to a qeth_hdr. When returning with >= 0,
3868 * it contains a valid pointer to a qeth_hdr.
3869 * @hdr_len: length of the HW header.
3870 * @proto_len: length of protocol headers that need to be in same page as the
3873 * Returns the pushed length. If the header can't be pushed on
3874 * (eg. because it would cross a page boundary), it is allocated from
3875 * the cache instead and 0 is returned.
3876 * The number of needed buffer elements is returned in @elements.
3877 * Error to create the hdr is indicated by returning with < 0.
3879 int qeth_add_hw_header(struct qeth_card
*card
, struct sk_buff
*skb
,
3880 struct qeth_hdr
**hdr
, unsigned int hdr_len
,
3881 unsigned int proto_len
, unsigned int *elements
)
3883 const unsigned int max_elements
= QETH_MAX_BUFFER_ELEMENTS(card
);
3884 const unsigned int contiguous
= proto_len
? proto_len
: 1;
3885 unsigned int __elements
;
3891 start
= (addr_t
)skb
->data
- hdr_len
;
3892 end
= (addr_t
)skb
->data
;
3894 if (qeth_get_elements_for_range(start
, end
+ contiguous
) == 1) {
3895 /* Push HW header into same page as first protocol header. */
3897 __elements
= qeth_count_elements(skb
, 0);
3898 } else if (!proto_len
&& qeth_get_elements_for_range(start
, end
) == 1) {
3899 /* Push HW header into a new page. */
3901 __elements
= 1 + qeth_count_elements(skb
, 0);
3903 /* Use header cache, copy protocol headers up. */
3905 __elements
= 1 + qeth_count_elements(skb
, proto_len
);
3908 /* Compress skb to fit into one IO buffer: */
3909 if (__elements
> max_elements
) {
3910 if (!skb_is_nonlinear(skb
)) {
3911 /* Drop it, no easy way of shrinking it further. */
3912 QETH_DBF_MESSAGE(2, "Dropped an oversized skb (Max Elements=%u / Actual=%u / Length=%u).\n",
3913 max_elements
, __elements
, skb
->len
);
3917 rc
= skb_linearize(skb
);
3918 if (card
->options
.performance_stats
) {
3920 card
->perf_stats
.tx_linfail
++;
3922 card
->perf_stats
.tx_lin
++;
3927 /* Linearization changed the layout, re-evaluate: */
3931 *elements
= __elements
;
3932 /* Add the header: */
3934 *hdr
= skb_push(skb
, hdr_len
);
3938 *hdr
= kmem_cache_alloc(qeth_core_header_cache
, GFP_ATOMIC
);
3941 /* Copy protocol headers behind HW header: */
3942 skb_copy_from_linear_data(skb
, ((char *)*hdr
) + hdr_len
, proto_len
);
3945 EXPORT_SYMBOL_GPL(qeth_add_hw_header
);
3947 static void __qeth_fill_buffer(struct sk_buff
*skb
,
3948 struct qeth_qdio_out_buffer
*buf
,
3949 bool is_first_elem
, unsigned int offset
)
3951 struct qdio_buffer
*buffer
= buf
->buffer
;
3952 int element
= buf
->next_element_to_fill
;
3953 int length
= skb_headlen(skb
) - offset
;
3954 char *data
= skb
->data
+ offset
;
3955 int length_here
, cnt
;
3957 /* map linear part into buffer element(s) */
3958 while (length
> 0) {
3959 /* length_here is the remaining amount of data in this page */
3960 length_here
= PAGE_SIZE
- ((unsigned long) data
% PAGE_SIZE
);
3961 if (length
< length_here
)
3962 length_here
= length
;
3964 buffer
->element
[element
].addr
= data
;
3965 buffer
->element
[element
].length
= length_here
;
3966 length
-= length_here
;
3967 if (is_first_elem
) {
3968 is_first_elem
= false;
3969 if (length
|| skb_is_nonlinear(skb
))
3970 /* skb needs additional elements */
3971 buffer
->element
[element
].eflags
=
3972 SBAL_EFLAGS_FIRST_FRAG
;
3974 buffer
->element
[element
].eflags
= 0;
3976 buffer
->element
[element
].eflags
=
3977 SBAL_EFLAGS_MIDDLE_FRAG
;
3979 data
+= length_here
;
3983 /* map page frags into buffer element(s) */
3984 for (cnt
= 0; cnt
< skb_shinfo(skb
)->nr_frags
; cnt
++) {
3985 skb_frag_t
*frag
= &skb_shinfo(skb
)->frags
[cnt
];
3987 data
= skb_frag_address(frag
);
3988 length
= skb_frag_size(frag
);
3989 while (length
> 0) {
3990 length_here
= PAGE_SIZE
-
3991 ((unsigned long) data
% PAGE_SIZE
);
3992 if (length
< length_here
)
3993 length_here
= length
;
3995 buffer
->element
[element
].addr
= data
;
3996 buffer
->element
[element
].length
= length_here
;
3997 buffer
->element
[element
].eflags
=
3998 SBAL_EFLAGS_MIDDLE_FRAG
;
3999 length
-= length_here
;
4000 data
+= length_here
;
4005 if (buffer
->element
[element
- 1].eflags
)
4006 buffer
->element
[element
- 1].eflags
= SBAL_EFLAGS_LAST_FRAG
;
4007 buf
->next_element_to_fill
= element
;
4011 * qeth_fill_buffer() - map skb into an output buffer
4012 * @queue: QDIO queue to submit the buffer on
4013 * @buf: buffer to transport the skb
4014 * @skb: skb to map into the buffer
4015 * @hdr: qeth_hdr for this skb. Either at skb->data, or allocated
4016 * from qeth_core_header_cache.
4017 * @offset: when mapping the skb, start at skb->data + offset
4018 * @hd_len: if > 0, build a dedicated header element of this size
4020 static int qeth_fill_buffer(struct qeth_qdio_out_q
*queue
,
4021 struct qeth_qdio_out_buffer
*buf
,
4022 struct sk_buff
*skb
, struct qeth_hdr
*hdr
,
4023 unsigned int offset
, unsigned int hd_len
)
4025 struct qdio_buffer
*buffer
= buf
->buffer
;
4026 bool is_first_elem
= true;
4029 refcount_inc(&skb
->users
);
4030 skb_queue_tail(&buf
->skb_list
, skb
);
4032 /* build dedicated header element */
4034 int element
= buf
->next_element_to_fill
;
4035 is_first_elem
= false;
4037 buffer
->element
[element
].addr
= hdr
;
4038 buffer
->element
[element
].length
= hd_len
;
4039 buffer
->element
[element
].eflags
= SBAL_EFLAGS_FIRST_FRAG
;
4040 /* remember to free cache-allocated qeth_hdr: */
4041 buf
->is_header
[element
] = ((void *)hdr
!= skb
->data
);
4042 buf
->next_element_to_fill
++;
4045 __qeth_fill_buffer(skb
, buf
, is_first_elem
, offset
);
4047 if (!queue
->do_pack
) {
4048 QETH_CARD_TEXT(queue
->card
, 6, "fillbfnp");
4049 /* set state to PRIMED -> will be flushed */
4050 atomic_set(&buf
->state
, QETH_QDIO_BUF_PRIMED
);
4053 QETH_CARD_TEXT(queue
->card
, 6, "fillbfpa");
4054 if (queue
->card
->options
.performance_stats
)
4055 queue
->card
->perf_stats
.skbs_sent_pack
++;
4056 if (buf
->next_element_to_fill
>=
4057 QETH_MAX_BUFFER_ELEMENTS(queue
->card
)) {
4059 * packed buffer if full -> set state PRIMED
4060 * -> will be flushed
4062 atomic_set(&buf
->state
, QETH_QDIO_BUF_PRIMED
);
4069 int qeth_do_send_packet_fast(struct qeth_qdio_out_q
*queue
, struct sk_buff
*skb
,
4070 struct qeth_hdr
*hdr
, unsigned int offset
,
4071 unsigned int hd_len
)
4073 int index
= queue
->next_buf_to_fill
;
4074 struct qeth_qdio_out_buffer
*buffer
= queue
->bufs
[index
];
4077 * check if buffer is empty to make sure that we do not 'overtake'
4078 * ourselves and try to fill a buffer that is already primed
4080 if (atomic_read(&buffer
->state
) != QETH_QDIO_BUF_EMPTY
)
4082 queue
->next_buf_to_fill
= (index
+ 1) % QDIO_MAX_BUFFERS_PER_Q
;
4083 qeth_fill_buffer(queue
, buffer
, skb
, hdr
, offset
, hd_len
);
4084 qeth_flush_buffers(queue
, index
, 1);
4087 EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast
);
4089 int qeth_do_send_packet(struct qeth_card
*card
, struct qeth_qdio_out_q
*queue
,
4090 struct sk_buff
*skb
, struct qeth_hdr
*hdr
,
4091 unsigned int offset
, unsigned int hd_len
,
4092 int elements_needed
)
4094 struct qeth_qdio_out_buffer
*buffer
;
4096 int flush_count
= 0;
4101 /* spin until we get the queue ... */
4102 while (atomic_cmpxchg(&queue
->state
, QETH_OUT_Q_UNLOCKED
,
4103 QETH_OUT_Q_LOCKED
) != QETH_OUT_Q_UNLOCKED
);
4104 start_index
= queue
->next_buf_to_fill
;
4105 buffer
= queue
->bufs
[queue
->next_buf_to_fill
];
4107 * check if buffer is empty to make sure that we do not 'overtake'
4108 * ourselves and try to fill a buffer that is already primed
4110 if (atomic_read(&buffer
->state
) != QETH_QDIO_BUF_EMPTY
) {
4111 atomic_set(&queue
->state
, QETH_OUT_Q_UNLOCKED
);
4114 /* check if we need to switch packing state of this queue */
4115 qeth_switch_to_packing_if_needed(queue
);
4116 if (queue
->do_pack
) {
4118 /* does packet fit in current buffer? */
4119 if ((QETH_MAX_BUFFER_ELEMENTS(card
) -
4120 buffer
->next_element_to_fill
) < elements_needed
) {
4121 /* ... no -> set state PRIMED */
4122 atomic_set(&buffer
->state
, QETH_QDIO_BUF_PRIMED
);
4124 queue
->next_buf_to_fill
=
4125 (queue
->next_buf_to_fill
+ 1) %
4126 QDIO_MAX_BUFFERS_PER_Q
;
4127 buffer
= queue
->bufs
[queue
->next_buf_to_fill
];
4128 /* we did a step forward, so check buffer state
4130 if (atomic_read(&buffer
->state
) !=
4131 QETH_QDIO_BUF_EMPTY
) {
4132 qeth_flush_buffers(queue
, start_index
,
4134 atomic_set(&queue
->state
,
4135 QETH_OUT_Q_UNLOCKED
);
4141 tmp
= qeth_fill_buffer(queue
, buffer
, skb
, hdr
, offset
, hd_len
);
4142 queue
->next_buf_to_fill
= (queue
->next_buf_to_fill
+ tmp
) %
4143 QDIO_MAX_BUFFERS_PER_Q
;
4146 qeth_flush_buffers(queue
, start_index
, flush_count
);
4147 else if (!atomic_read(&queue
->set_pci_flags_count
))
4148 atomic_xchg(&queue
->state
, QETH_OUT_Q_LOCKED_FLUSH
);
4150 * queue->state will go from LOCKED -> UNLOCKED or from
4151 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4152 * (switch packing state or flush buffer to get another pci flag out).
4153 * In that case we will enter this loop
4155 while (atomic_dec_return(&queue
->state
)) {
4156 start_index
= queue
->next_buf_to_fill
;
4157 /* check if we can go back to non-packing state */
4158 tmp
= qeth_switch_to_nonpacking_if_needed(queue
);
4160 * check if we need to flush a packing buffer to get a pci
4161 * flag out on the queue
4163 if (!tmp
&& !atomic_read(&queue
->set_pci_flags_count
))
4164 tmp
= qeth_prep_flush_pack_buffer(queue
);
4166 qeth_flush_buffers(queue
, start_index
, tmp
);
4171 /* at this point the queue is UNLOCKED again */
4172 if (queue
->card
->options
.performance_stats
&& do_pack
)
4173 queue
->card
->perf_stats
.bufs_sent_pack
+= flush_count
;
4177 EXPORT_SYMBOL_GPL(qeth_do_send_packet
);
4179 static int qeth_setadp_promisc_mode_cb(struct qeth_card
*card
,
4180 struct qeth_reply
*reply
, unsigned long data
)
4182 struct qeth_ipa_cmd
*cmd
= (struct qeth_ipa_cmd
*) data
;
4183 struct qeth_ipacmd_setadpparms
*setparms
;
4185 QETH_CARD_TEXT(card
, 4, "prmadpcb");
4187 setparms
= &(cmd
->data
.setadapterparms
);
4188 if (qeth_setadpparms_inspect_rc(cmd
)) {
4189 QETH_CARD_TEXT_(card
, 4, "prmrc%x", cmd
->hdr
.return_code
);
4190 setparms
->data
.mode
= SET_PROMISC_MODE_OFF
;
4192 card
->info
.promisc_mode
= setparms
->data
.mode
;
4196 void qeth_setadp_promisc_mode(struct qeth_card
*card
)
4198 enum qeth_ipa_promisc_modes mode
;
4199 struct net_device
*dev
= card
->dev
;
4200 struct qeth_cmd_buffer
*iob
;
4201 struct qeth_ipa_cmd
*cmd
;
4203 QETH_CARD_TEXT(card
, 4, "setprom");
4205 if (((dev
->flags
& IFF_PROMISC
) &&
4206 (card
->info
.promisc_mode
== SET_PROMISC_MODE_ON
)) ||
4207 (!(dev
->flags
& IFF_PROMISC
) &&
4208 (card
->info
.promisc_mode
== SET_PROMISC_MODE_OFF
)))
4210 mode
= SET_PROMISC_MODE_OFF
;
4211 if (dev
->flags
& IFF_PROMISC
)
4212 mode
= SET_PROMISC_MODE_ON
;
4213 QETH_CARD_TEXT_(card
, 4, "mode:%x", mode
);
4215 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_SET_PROMISC_MODE
,
4216 sizeof(struct qeth_ipacmd_setadpparms_hdr
) + 8);
4219 cmd
= __ipa_cmd(iob
);
4220 cmd
->data
.setadapterparms
.data
.mode
= mode
;
4221 qeth_send_ipa_cmd(card
, iob
, qeth_setadp_promisc_mode_cb
, NULL
);
4223 EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode
);
4225 struct net_device_stats
*qeth_get_stats(struct net_device
*dev
)
4227 struct qeth_card
*card
;
4229 card
= dev
->ml_priv
;
4231 QETH_CARD_TEXT(card
, 5, "getstat");
4233 return &card
->stats
;
4235 EXPORT_SYMBOL_GPL(qeth_get_stats
);
4237 static int qeth_setadpparms_change_macaddr_cb(struct qeth_card
*card
,
4238 struct qeth_reply
*reply
, unsigned long data
)
4240 struct qeth_ipa_cmd
*cmd
= (struct qeth_ipa_cmd
*) data
;
4242 QETH_CARD_TEXT(card
, 4, "chgmaccb");
4243 if (qeth_setadpparms_inspect_rc(cmd
))
4246 if (!card
->options
.layer2
||
4247 !(card
->info
.mac_bits
& QETH_LAYER2_MAC_READ
)) {
4248 ether_addr_copy(card
->dev
->dev_addr
,
4249 cmd
->data
.setadapterparms
.data
.change_addr
.addr
);
4250 card
->info
.mac_bits
|= QETH_LAYER2_MAC_READ
;
4255 int qeth_setadpparms_change_macaddr(struct qeth_card
*card
)
4258 struct qeth_cmd_buffer
*iob
;
4259 struct qeth_ipa_cmd
*cmd
;
4261 QETH_CARD_TEXT(card
, 4, "chgmac");
4263 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_ALTER_MAC_ADDRESS
,
4264 sizeof(struct qeth_ipacmd_setadpparms_hdr
) +
4265 sizeof(struct qeth_change_addr
));
4268 cmd
= __ipa_cmd(iob
);
4269 cmd
->data
.setadapterparms
.data
.change_addr
.cmd
= CHANGE_ADDR_READ_MAC
;
4270 cmd
->data
.setadapterparms
.data
.change_addr
.addr_size
= ETH_ALEN
;
4271 ether_addr_copy(cmd
->data
.setadapterparms
.data
.change_addr
.addr
,
4272 card
->dev
->dev_addr
);
4273 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_setadpparms_change_macaddr_cb
,
4277 EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr
);
4279 static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card
*card
,
4280 struct qeth_reply
*reply
, unsigned long data
)
4282 struct qeth_ipa_cmd
*cmd
= (struct qeth_ipa_cmd
*) data
;
4283 struct qeth_set_access_ctrl
*access_ctrl_req
;
4284 int fallback
= *(int *)reply
->param
;
4286 QETH_CARD_TEXT(card
, 4, "setaccb");
4287 if (cmd
->hdr
.return_code
)
4289 qeth_setadpparms_inspect_rc(cmd
);
4291 access_ctrl_req
= &cmd
->data
.setadapterparms
.data
.set_access_ctrl
;
4292 QETH_DBF_TEXT_(SETUP
, 2, "setaccb");
4293 QETH_DBF_TEXT_(SETUP
, 2, "%s", card
->gdev
->dev
.kobj
.name
);
4294 QETH_DBF_TEXT_(SETUP
, 2, "rc=%d",
4295 cmd
->data
.setadapterparms
.hdr
.return_code
);
4296 if (cmd
->data
.setadapterparms
.hdr
.return_code
!=
4297 SET_ACCESS_CTRL_RC_SUCCESS
)
4298 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%s,%d)==%d\n",
4299 card
->gdev
->dev
.kobj
.name
,
4300 access_ctrl_req
->subcmd_code
,
4301 cmd
->data
.setadapterparms
.hdr
.return_code
);
4302 switch (cmd
->data
.setadapterparms
.hdr
.return_code
) {
4303 case SET_ACCESS_CTRL_RC_SUCCESS
:
4304 if (card
->options
.isolation
== ISOLATION_MODE_NONE
) {
4305 dev_info(&card
->gdev
->dev
,
4306 "QDIO data connection isolation is deactivated\n");
4308 dev_info(&card
->gdev
->dev
,
4309 "QDIO data connection isolation is activated\n");
4312 case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED
:
4313 QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already "
4314 "deactivated\n", dev_name(&card
->gdev
->dev
));
4316 card
->options
.isolation
= card
->options
.prev_isolation
;
4318 case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED
:
4319 QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already"
4320 " activated\n", dev_name(&card
->gdev
->dev
));
4322 card
->options
.isolation
= card
->options
.prev_isolation
;
4324 case SET_ACCESS_CTRL_RC_NOT_SUPPORTED
:
4325 dev_err(&card
->gdev
->dev
, "Adapter does not "
4326 "support QDIO data connection isolation\n");
4328 case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER
:
4329 dev_err(&card
->gdev
->dev
,
4330 "Adapter is dedicated. "
4331 "QDIO data connection isolation not supported\n");
4333 card
->options
.isolation
= card
->options
.prev_isolation
;
4335 case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF
:
4336 dev_err(&card
->gdev
->dev
,
4337 "TSO does not permit QDIO data connection isolation\n");
4339 card
->options
.isolation
= card
->options
.prev_isolation
;
4341 case SET_ACCESS_CTRL_RC_REFLREL_UNSUPPORTED
:
4342 dev_err(&card
->gdev
->dev
, "The adjacent switch port does not "
4343 "support reflective relay mode\n");
4345 card
->options
.isolation
= card
->options
.prev_isolation
;
4347 case SET_ACCESS_CTRL_RC_REFLREL_FAILED
:
4348 dev_err(&card
->gdev
->dev
, "The reflective relay mode cannot be "
4349 "enabled at the adjacent switch port");
4351 card
->options
.isolation
= card
->options
.prev_isolation
;
4353 case SET_ACCESS_CTRL_RC_REFLREL_DEACT_FAILED
:
4354 dev_warn(&card
->gdev
->dev
, "Turning off reflective relay mode "
4355 "at the adjacent switch failed\n");
4358 /* this should never happen */
4360 card
->options
.isolation
= card
->options
.prev_isolation
;
4366 static int qeth_setadpparms_set_access_ctrl(struct qeth_card
*card
,
4367 enum qeth_ipa_isolation_modes isolation
, int fallback
)
4370 struct qeth_cmd_buffer
*iob
;
4371 struct qeth_ipa_cmd
*cmd
;
4372 struct qeth_set_access_ctrl
*access_ctrl_req
;
4374 QETH_CARD_TEXT(card
, 4, "setacctl");
4376 QETH_DBF_TEXT_(SETUP
, 2, "setacctl");
4377 QETH_DBF_TEXT_(SETUP
, 2, "%s", card
->gdev
->dev
.kobj
.name
);
4379 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_SET_ACCESS_CONTROL
,
4380 sizeof(struct qeth_ipacmd_setadpparms_hdr
) +
4381 sizeof(struct qeth_set_access_ctrl
));
4384 cmd
= __ipa_cmd(iob
);
4385 access_ctrl_req
= &cmd
->data
.setadapterparms
.data
.set_access_ctrl
;
4386 access_ctrl_req
->subcmd_code
= isolation
;
4388 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_setadpparms_set_access_ctrl_cb
,
4390 QETH_DBF_TEXT_(SETUP
, 2, "rc=%d", rc
);
4394 int qeth_set_access_ctrl_online(struct qeth_card
*card
, int fallback
)
4398 QETH_CARD_TEXT(card
, 4, "setactlo");
4400 if ((card
->info
.type
== QETH_CARD_TYPE_OSD
||
4401 card
->info
.type
== QETH_CARD_TYPE_OSX
) &&
4402 qeth_adp_supported(card
, IPA_SETADP_SET_ACCESS_CONTROL
)) {
4403 rc
= qeth_setadpparms_set_access_ctrl(card
,
4404 card
->options
.isolation
, fallback
);
4407 "IPA(SET_ACCESS_CTRL,%s,%d) sent failed\n",
4408 card
->gdev
->dev
.kobj
.name
,
4412 } else if (card
->options
.isolation
!= ISOLATION_MODE_NONE
) {
4413 card
->options
.isolation
= ISOLATION_MODE_NONE
;
4415 dev_err(&card
->gdev
->dev
, "Adapter does not "
4416 "support QDIO data connection isolation\n");
4421 EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online
);
4423 void qeth_tx_timeout(struct net_device
*dev
)
4425 struct qeth_card
*card
;
4427 card
= dev
->ml_priv
;
4428 QETH_CARD_TEXT(card
, 4, "txtimeo");
4429 card
->stats
.tx_errors
++;
4430 qeth_schedule_recovery(card
);
4432 EXPORT_SYMBOL_GPL(qeth_tx_timeout
);
4434 static int qeth_mdio_read(struct net_device
*dev
, int phy_id
, int regnum
)
4436 struct qeth_card
*card
= dev
->ml_priv
;
4440 case MII_BMCR
: /* Basic mode control register */
4442 if ((card
->info
.link_type
!= QETH_LINK_TYPE_GBIT_ETH
) &&
4443 (card
->info
.link_type
!= QETH_LINK_TYPE_OSN
) &&
4444 (card
->info
.link_type
!= QETH_LINK_TYPE_10GBIT_ETH
))
4445 rc
|= BMCR_SPEED100
;
4447 case MII_BMSR
: /* Basic mode status register */
4448 rc
= BMSR_ERCAP
| BMSR_ANEGCOMPLETE
| BMSR_LSTATUS
|
4449 BMSR_10HALF
| BMSR_10FULL
| BMSR_100HALF
| BMSR_100FULL
|
4452 case MII_PHYSID1
: /* PHYS ID 1 */
4453 rc
= (dev
->dev_addr
[0] << 16) | (dev
->dev_addr
[1] << 8) |
4455 rc
= (rc
>> 5) & 0xFFFF;
4457 case MII_PHYSID2
: /* PHYS ID 2 */
4458 rc
= (dev
->dev_addr
[2] << 10) & 0xFFFF;
4460 case MII_ADVERTISE
: /* Advertisement control reg */
4463 case MII_LPA
: /* Link partner ability reg */
4464 rc
= LPA_10HALF
| LPA_10FULL
| LPA_100HALF
| LPA_100FULL
|
4465 LPA_100BASE4
| LPA_LPACK
;
4467 case MII_EXPANSION
: /* Expansion register */
4469 case MII_DCOUNTER
: /* disconnect counter */
4471 case MII_FCSCOUNTER
: /* false carrier counter */
4473 case MII_NWAYTEST
: /* N-way auto-neg test register */
4475 case MII_RERRCOUNTER
: /* rx error counter */
4476 rc
= card
->stats
.rx_errors
;
4478 case MII_SREVISION
: /* silicon revision */
4480 case MII_RESV1
: /* reserved 1 */
4482 case MII_LBRERROR
: /* loopback, rx, bypass error */
4484 case MII_PHYADDR
: /* physical address */
4486 case MII_RESV2
: /* reserved 2 */
4488 case MII_TPISTATUS
: /* TPI status for 10mbps */
4490 case MII_NCONFIG
: /* network interface config */
4498 static int qeth_send_ipa_snmp_cmd(struct qeth_card
*card
,
4499 struct qeth_cmd_buffer
*iob
, int len
,
4500 int (*reply_cb
)(struct qeth_card
*, struct qeth_reply
*,
4506 QETH_CARD_TEXT(card
, 4, "sendsnmp");
4508 memcpy(iob
->data
, IPA_PDU_HEADER
, IPA_PDU_HEADER_SIZE
);
4509 memcpy(QETH_IPA_CMD_DEST_ADDR(iob
->data
),
4510 &card
->token
.ulp_connection_r
, QETH_MPC_TOKEN_LENGTH
);
4511 /* adjust PDU length fields in IPA_PDU_HEADER */
4512 s1
= (u32
) IPA_PDU_HEADER_SIZE
+ len
;
4514 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob
->data
), &s1
, 2);
4515 memcpy(QETH_IPA_PDU_LEN_PDU1(iob
->data
), &s2
, 2);
4516 memcpy(QETH_IPA_PDU_LEN_PDU2(iob
->data
), &s2
, 2);
4517 memcpy(QETH_IPA_PDU_LEN_PDU3(iob
->data
), &s2
, 2);
4518 return qeth_send_control_data(card
, IPA_PDU_HEADER_SIZE
+ len
, iob
,
4519 reply_cb
, reply_param
);
4522 static int qeth_snmp_command_cb(struct qeth_card
*card
,
4523 struct qeth_reply
*reply
, unsigned long sdata
)
4525 struct qeth_ipa_cmd
*cmd
;
4526 struct qeth_arp_query_info
*qinfo
;
4527 struct qeth_snmp_cmd
*snmp
;
4528 unsigned char *data
;
4531 QETH_CARD_TEXT(card
, 3, "snpcmdcb");
4533 cmd
= (struct qeth_ipa_cmd
*) sdata
;
4534 data
= (unsigned char *)((char *)cmd
- reply
->offset
);
4535 qinfo
= (struct qeth_arp_query_info
*) reply
->param
;
4536 snmp
= &cmd
->data
.setadapterparms
.data
.snmp
;
4538 if (cmd
->hdr
.return_code
) {
4539 QETH_CARD_TEXT_(card
, 4, "scer1%x", cmd
->hdr
.return_code
);
4542 if (cmd
->data
.setadapterparms
.hdr
.return_code
) {
4543 cmd
->hdr
.return_code
=
4544 cmd
->data
.setadapterparms
.hdr
.return_code
;
4545 QETH_CARD_TEXT_(card
, 4, "scer2%x", cmd
->hdr
.return_code
);
4548 data_len
= *((__u16
*)QETH_IPA_PDU_LEN_PDU1(data
));
4549 if (cmd
->data
.setadapterparms
.hdr
.seq_no
== 1)
4550 data_len
-= (__u16
)((char *)&snmp
->data
- (char *)cmd
);
4552 data_len
-= (__u16
)((char *)&snmp
->request
- (char *)cmd
);
4554 /* check if there is enough room in userspace */
4555 if ((qinfo
->udata_len
- qinfo
->udata_offset
) < data_len
) {
4556 QETH_CARD_TEXT_(card
, 4, "scer3%i", -ENOMEM
);
4557 cmd
->hdr
.return_code
= IPA_RC_ENOMEM
;
4560 QETH_CARD_TEXT_(card
, 4, "snore%i",
4561 cmd
->data
.setadapterparms
.hdr
.used_total
);
4562 QETH_CARD_TEXT_(card
, 4, "sseqn%i",
4563 cmd
->data
.setadapterparms
.hdr
.seq_no
);
4564 /*copy entries to user buffer*/
4565 if (cmd
->data
.setadapterparms
.hdr
.seq_no
== 1) {
4566 memcpy(qinfo
->udata
+ qinfo
->udata_offset
,
4568 data_len
+ offsetof(struct qeth_snmp_cmd
, data
));
4569 qinfo
->udata_offset
+= offsetof(struct qeth_snmp_cmd
, data
);
4571 memcpy(qinfo
->udata
+ qinfo
->udata_offset
,
4572 (char *)&snmp
->request
, data_len
);
4574 qinfo
->udata_offset
+= data_len
;
4575 /* check if all replies received ... */
4576 QETH_CARD_TEXT_(card
, 4, "srtot%i",
4577 cmd
->data
.setadapterparms
.hdr
.used_total
);
4578 QETH_CARD_TEXT_(card
, 4, "srseq%i",
4579 cmd
->data
.setadapterparms
.hdr
.seq_no
);
4580 if (cmd
->data
.setadapterparms
.hdr
.seq_no
<
4581 cmd
->data
.setadapterparms
.hdr
.used_total
)
4586 static int qeth_snmp_command(struct qeth_card
*card
, char __user
*udata
)
4588 struct qeth_cmd_buffer
*iob
;
4589 struct qeth_ipa_cmd
*cmd
;
4590 struct qeth_snmp_ureq
*ureq
;
4591 unsigned int req_len
;
4592 struct qeth_arp_query_info qinfo
= {0, };
4595 QETH_CARD_TEXT(card
, 3, "snmpcmd");
4597 if (card
->info
.guestlan
)
4600 if ((!qeth_adp_supported(card
, IPA_SETADP_SET_SNMP_CONTROL
)) &&
4601 (!card
->options
.layer2
)) {
4604 /* skip 4 bytes (data_len struct member) to get req_len */
4605 if (copy_from_user(&req_len
, udata
+ sizeof(int), sizeof(int)))
4607 if (req_len
> (QETH_BUFSIZE
- IPA_PDU_HEADER_SIZE
-
4608 sizeof(struct qeth_ipacmd_hdr
) -
4609 sizeof(struct qeth_ipacmd_setadpparms_hdr
)))
4611 ureq
= memdup_user(udata
, req_len
+ sizeof(struct qeth_snmp_ureq_hdr
));
4613 QETH_CARD_TEXT(card
, 2, "snmpnome");
4614 return PTR_ERR(ureq
);
4616 qinfo
.udata_len
= ureq
->hdr
.data_len
;
4617 qinfo
.udata
= kzalloc(qinfo
.udata_len
, GFP_KERNEL
);
4622 qinfo
.udata_offset
= sizeof(struct qeth_snmp_ureq_hdr
);
4624 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_SET_SNMP_CONTROL
,
4625 QETH_SNMP_SETADP_CMDLENGTH
+ req_len
);
4630 cmd
= __ipa_cmd(iob
);
4631 memcpy(&cmd
->data
.setadapterparms
.data
.snmp
, &ureq
->cmd
, req_len
);
4632 rc
= qeth_send_ipa_snmp_cmd(card
, iob
, QETH_SETADP_BASE_LEN
+ req_len
,
4633 qeth_snmp_command_cb
, (void *)&qinfo
);
4635 QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n",
4636 QETH_CARD_IFNAME(card
), rc
);
4638 if (copy_to_user(udata
, qinfo
.udata
, qinfo
.udata_len
))
4647 static int qeth_setadpparms_query_oat_cb(struct qeth_card
*card
,
4648 struct qeth_reply
*reply
, unsigned long data
)
4650 struct qeth_ipa_cmd
*cmd
= (struct qeth_ipa_cmd
*)data
;
4651 struct qeth_qoat_priv
*priv
;
4655 QETH_CARD_TEXT(card
, 3, "qoatcb");
4656 if (qeth_setadpparms_inspect_rc(cmd
))
4659 priv
= (struct qeth_qoat_priv
*)reply
->param
;
4660 resdatalen
= cmd
->data
.setadapterparms
.hdr
.cmdlength
;
4661 resdata
= (char *)data
+ 28;
4663 if (resdatalen
> (priv
->buffer_len
- priv
->response_len
)) {
4664 cmd
->hdr
.return_code
= IPA_RC_FFFF
;
4668 memcpy((priv
->buffer
+ priv
->response_len
), resdata
,
4670 priv
->response_len
+= resdatalen
;
4672 if (cmd
->data
.setadapterparms
.hdr
.seq_no
<
4673 cmd
->data
.setadapterparms
.hdr
.used_total
)
4678 static int qeth_query_oat_command(struct qeth_card
*card
, char __user
*udata
)
4681 struct qeth_cmd_buffer
*iob
;
4682 struct qeth_ipa_cmd
*cmd
;
4683 struct qeth_query_oat
*oat_req
;
4684 struct qeth_query_oat_data oat_data
;
4685 struct qeth_qoat_priv priv
;
4688 QETH_CARD_TEXT(card
, 3, "qoatcmd");
4690 if (!qeth_adp_supported(card
, IPA_SETADP_QUERY_OAT
)) {
4695 if (copy_from_user(&oat_data
, udata
,
4696 sizeof(struct qeth_query_oat_data
))) {
4701 priv
.buffer_len
= oat_data
.buffer_len
;
4702 priv
.response_len
= 0;
4703 priv
.buffer
= vzalloc(oat_data
.buffer_len
);
4709 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_QUERY_OAT
,
4710 sizeof(struct qeth_ipacmd_setadpparms_hdr
) +
4711 sizeof(struct qeth_query_oat
));
4716 cmd
= __ipa_cmd(iob
);
4717 oat_req
= &cmd
->data
.setadapterparms
.data
.query_oat
;
4718 oat_req
->subcmd_code
= oat_data
.command
;
4720 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_setadpparms_query_oat_cb
,
4723 if (is_compat_task())
4724 tmp
= compat_ptr(oat_data
.ptr
);
4726 tmp
= (void __user
*)(unsigned long)oat_data
.ptr
;
4728 if (copy_to_user(tmp
, priv
.buffer
,
4729 priv
.response_len
)) {
4734 oat_data
.response_len
= priv
.response_len
;
4736 if (copy_to_user(udata
, &oat_data
,
4737 sizeof(struct qeth_query_oat_data
)))
4740 if (rc
== IPA_RC_FFFF
)
4749 static int qeth_query_card_info_cb(struct qeth_card
*card
,
4750 struct qeth_reply
*reply
, unsigned long data
)
4752 struct carrier_info
*carrier_info
= (struct carrier_info
*)reply
->param
;
4753 struct qeth_ipa_cmd
*cmd
= (struct qeth_ipa_cmd
*)data
;
4754 struct qeth_query_card_info
*card_info
;
4756 QETH_CARD_TEXT(card
, 2, "qcrdincb");
4757 if (qeth_setadpparms_inspect_rc(cmd
))
4760 card_info
= &cmd
->data
.setadapterparms
.data
.card_info
;
4761 carrier_info
->card_type
= card_info
->card_type
;
4762 carrier_info
->port_mode
= card_info
->port_mode
;
4763 carrier_info
->port_speed
= card_info
->port_speed
;
4767 static int qeth_query_card_info(struct qeth_card
*card
,
4768 struct carrier_info
*carrier_info
)
4770 struct qeth_cmd_buffer
*iob
;
4772 QETH_CARD_TEXT(card
, 2, "qcrdinfo");
4773 if (!qeth_adp_supported(card
, IPA_SETADP_QUERY_CARD_INFO
))
4775 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_QUERY_CARD_INFO
,
4776 sizeof(struct qeth_ipacmd_setadpparms_hdr
));
4779 return qeth_send_ipa_cmd(card
, iob
, qeth_query_card_info_cb
,
4780 (void *)carrier_info
);
4784 * qeth_vm_request_mac() - Request a hypervisor-managed MAC address
4785 * @card: pointer to a qeth_card
4788 * 0, if a MAC address has been set for the card's netdevice
4789 * a return code, for various error conditions
4791 int qeth_vm_request_mac(struct qeth_card
*card
)
4793 struct diag26c_mac_resp
*response
;
4794 struct diag26c_mac_req
*request
;
4795 struct ccw_dev_id id
;
4798 QETH_DBF_TEXT(SETUP
, 2, "vmreqmac");
4800 request
= kzalloc(sizeof(*request
), GFP_KERNEL
| GFP_DMA
);
4801 response
= kzalloc(sizeof(*response
), GFP_KERNEL
| GFP_DMA
);
4802 if (!request
|| !response
) {
4807 ccw_device_get_id(CARD_DDEV(card
), &id
);
4808 request
->resp_buf_len
= sizeof(*response
);
4809 request
->resp_version
= DIAG26C_VERSION2
;
4810 request
->op_code
= DIAG26C_GET_MAC
;
4811 request
->devno
= id
.devno
;
4813 QETH_DBF_HEX(CTRL
, 2, request
, sizeof(*request
));
4814 rc
= diag26c(request
, response
, DIAG26C_MAC_SERVICES
);
4815 QETH_DBF_HEX(CTRL
, 2, request
, sizeof(*request
));
4818 QETH_DBF_HEX(CTRL
, 2, response
, sizeof(*response
));
4820 if (request
->resp_buf_len
< sizeof(*response
) ||
4821 response
->version
!= request
->resp_version
) {
4823 QETH_DBF_TEXT(SETUP
, 2, "badresp");
4824 QETH_DBF_HEX(SETUP
, 2, &request
->resp_buf_len
,
4825 sizeof(request
->resp_buf_len
));
4826 } else if (!is_valid_ether_addr(response
->mac
)) {
4828 QETH_DBF_TEXT(SETUP
, 2, "badmac");
4829 QETH_DBF_HEX(SETUP
, 2, response
->mac
, ETH_ALEN
);
4831 ether_addr_copy(card
->dev
->dev_addr
, response
->mac
);
4839 EXPORT_SYMBOL_GPL(qeth_vm_request_mac
);
4841 static int qeth_get_qdio_q_format(struct qeth_card
*card
)
4843 if (card
->info
.type
== QETH_CARD_TYPE_IQD
)
4844 return QDIO_IQDIO_QFMT
;
4846 return QDIO_QETH_QFMT
;
4849 static void qeth_determine_capabilities(struct qeth_card
*card
)
4854 struct ccw_device
*ddev
;
4855 int ddev_offline
= 0;
4857 QETH_DBF_TEXT(SETUP
, 2, "detcapab");
4858 ddev
= CARD_DDEV(card
);
4859 if (!ddev
->online
) {
4861 rc
= ccw_device_set_online(ddev
);
4863 QETH_DBF_TEXT_(SETUP
, 2, "3err%d", rc
);
4868 rc
= qeth_read_conf_data(card
, (void **) &prcd
, &length
);
4870 QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n",
4871 dev_name(&card
->gdev
->dev
), rc
);
4872 QETH_DBF_TEXT_(SETUP
, 2, "5err%d", rc
);
4875 qeth_configure_unitaddr(card
, prcd
);
4877 qeth_configure_blkt_default(card
, prcd
);
4880 rc
= qdio_get_ssqd_desc(ddev
, &card
->ssqd
);
4882 QETH_DBF_TEXT_(SETUP
, 2, "6err%d", rc
);
4884 QETH_DBF_TEXT_(SETUP
, 2, "qfmt%d", card
->ssqd
.qfmt
);
4885 QETH_DBF_TEXT_(SETUP
, 2, "ac1:%02x", card
->ssqd
.qdioac1
);
4886 QETH_DBF_TEXT_(SETUP
, 2, "ac2:%04x", card
->ssqd
.qdioac2
);
4887 QETH_DBF_TEXT_(SETUP
, 2, "ac3:%04x", card
->ssqd
.qdioac3
);
4888 QETH_DBF_TEXT_(SETUP
, 2, "icnt%d", card
->ssqd
.icnt
);
4889 if (!((card
->ssqd
.qfmt
!= QDIO_IQDIO_QFMT
) ||
4890 ((card
->ssqd
.qdioac1
& CHSC_AC1_INITIATE_INPUTQ
) == 0) ||
4891 ((card
->ssqd
.qdioac3
& CHSC_AC3_FORMAT2_CQ_AVAILABLE
) == 0))) {
4892 dev_info(&card
->gdev
->dev
,
4893 "Completion Queueing supported\n");
4895 card
->options
.cq
= QETH_CQ_NOTAVAILABLE
;
4900 if (ddev_offline
== 1)
4901 ccw_device_set_offline(ddev
);
4906 static void qeth_qdio_establish_cq(struct qeth_card
*card
,
4907 struct qdio_buffer
**in_sbal_ptrs
,
4908 void (**queue_start_poll
)
4909 (struct ccw_device
*, int,
4914 if (card
->options
.cq
== QETH_CQ_ENABLED
) {
4915 int offset
= QDIO_MAX_BUFFERS_PER_Q
*
4916 (card
->qdio
.no_in_queues
- 1);
4917 for (i
= 0; i
< QDIO_MAX_BUFFERS_PER_Q
; ++i
) {
4918 in_sbal_ptrs
[offset
+ i
] = (struct qdio_buffer
*)
4919 virt_to_phys(card
->qdio
.c_q
->bufs
[i
].buffer
);
4922 queue_start_poll
[card
->qdio
.no_in_queues
- 1] = NULL
;
4926 static int qeth_qdio_establish(struct qeth_card
*card
)
4928 struct qdio_initialize init_data
;
4929 char *qib_param_field
;
4930 struct qdio_buffer
**in_sbal_ptrs
;
4931 void (**queue_start_poll
) (struct ccw_device
*, int, unsigned long);
4932 struct qdio_buffer
**out_sbal_ptrs
;
4936 QETH_DBF_TEXT(SETUP
, 2, "qdioest");
4938 qib_param_field
= kzalloc(QDIO_MAX_BUFFERS_PER_Q
,
4940 if (!qib_param_field
) {
4942 goto out_free_nothing
;
4945 qeth_create_qib_param_field(card
, qib_param_field
);
4946 qeth_create_qib_param_field_blkt(card
, qib_param_field
);
4948 in_sbal_ptrs
= kcalloc(card
->qdio
.no_in_queues
* QDIO_MAX_BUFFERS_PER_Q
,
4951 if (!in_sbal_ptrs
) {
4953 goto out_free_qib_param
;
4955 for (i
= 0; i
< QDIO_MAX_BUFFERS_PER_Q
; ++i
) {
4956 in_sbal_ptrs
[i
] = (struct qdio_buffer
*)
4957 virt_to_phys(card
->qdio
.in_q
->bufs
[i
].buffer
);
4960 queue_start_poll
= kcalloc(card
->qdio
.no_in_queues
, sizeof(void *),
4962 if (!queue_start_poll
) {
4964 goto out_free_in_sbals
;
4966 for (i
= 0; i
< card
->qdio
.no_in_queues
; ++i
)
4967 queue_start_poll
[i
] = qeth_qdio_start_poll
;
4969 qeth_qdio_establish_cq(card
, in_sbal_ptrs
, queue_start_poll
);
4972 kcalloc(card
->qdio
.no_out_queues
* QDIO_MAX_BUFFERS_PER_Q
,
4975 if (!out_sbal_ptrs
) {
4977 goto out_free_queue_start_poll
;
4979 for (i
= 0, k
= 0; i
< card
->qdio
.no_out_queues
; ++i
)
4980 for (j
= 0; j
< QDIO_MAX_BUFFERS_PER_Q
; ++j
, ++k
) {
4981 out_sbal_ptrs
[k
] = (struct qdio_buffer
*)virt_to_phys(
4982 card
->qdio
.out_qs
[i
]->bufs
[j
]->buffer
);
4985 memset(&init_data
, 0, sizeof(struct qdio_initialize
));
4986 init_data
.cdev
= CARD_DDEV(card
);
4987 init_data
.q_format
= qeth_get_qdio_q_format(card
);
4988 init_data
.qib_param_field_format
= 0;
4989 init_data
.qib_param_field
= qib_param_field
;
4990 init_data
.no_input_qs
= card
->qdio
.no_in_queues
;
4991 init_data
.no_output_qs
= card
->qdio
.no_out_queues
;
4992 init_data
.input_handler
= qeth_qdio_input_handler
;
4993 init_data
.output_handler
= qeth_qdio_output_handler
;
4994 init_data
.queue_start_poll_array
= queue_start_poll
;
4995 init_data
.int_parm
= (unsigned long) card
;
4996 init_data
.input_sbal_addr_array
= (void **) in_sbal_ptrs
;
4997 init_data
.output_sbal_addr_array
= (void **) out_sbal_ptrs
;
4998 init_data
.output_sbal_state_array
= card
->qdio
.out_bufstates
;
4999 init_data
.scan_threshold
=
5000 (card
->info
.type
== QETH_CARD_TYPE_IQD
) ? 1 : 32;
5002 if (atomic_cmpxchg(&card
->qdio
.state
, QETH_QDIO_ALLOCATED
,
5003 QETH_QDIO_ESTABLISHED
) == QETH_QDIO_ALLOCATED
) {
5004 rc
= qdio_allocate(&init_data
);
5006 atomic_set(&card
->qdio
.state
, QETH_QDIO_ALLOCATED
);
5009 rc
= qdio_establish(&init_data
);
5011 atomic_set(&card
->qdio
.state
, QETH_QDIO_ALLOCATED
);
5012 qdio_free(CARD_DDEV(card
));
5016 switch (card
->options
.cq
) {
5017 case QETH_CQ_ENABLED
:
5018 dev_info(&card
->gdev
->dev
, "Completion Queue support enabled");
5020 case QETH_CQ_DISABLED
:
5021 dev_info(&card
->gdev
->dev
, "Completion Queue support disabled");
5027 kfree(out_sbal_ptrs
);
5028 out_free_queue_start_poll
:
5029 kfree(queue_start_poll
);
5031 kfree(in_sbal_ptrs
);
5033 kfree(qib_param_field
);
5038 static void qeth_core_free_card(struct qeth_card
*card
)
5040 QETH_DBF_TEXT(SETUP
, 2, "freecrd");
5041 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
5042 qeth_clean_channel(&card
->read
);
5043 qeth_clean_channel(&card
->write
);
5044 qeth_clean_channel(&card
->data
);
5045 qeth_free_qdio_buffers(card
);
5046 unregister_service_level(&card
->qeth_service_level
);
5050 void qeth_trace_features(struct qeth_card
*card
)
5052 QETH_CARD_TEXT(card
, 2, "features");
5053 QETH_CARD_HEX(card
, 2, &card
->options
.ipa4
, sizeof(card
->options
.ipa4
));
5054 QETH_CARD_HEX(card
, 2, &card
->options
.ipa6
, sizeof(card
->options
.ipa6
));
5055 QETH_CARD_HEX(card
, 2, &card
->options
.adp
, sizeof(card
->options
.adp
));
5056 QETH_CARD_HEX(card
, 2, &card
->info
.diagass_support
,
5057 sizeof(card
->info
.diagass_support
));
5059 EXPORT_SYMBOL_GPL(qeth_trace_features
);
5061 static struct ccw_device_id qeth_ids
[] = {
5062 {CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01),
5063 .driver_info
= QETH_CARD_TYPE_OSD
},
5064 {CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05),
5065 .driver_info
= QETH_CARD_TYPE_IQD
},
5066 {CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06),
5067 .driver_info
= QETH_CARD_TYPE_OSN
},
5068 {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03),
5069 .driver_info
= QETH_CARD_TYPE_OSM
},
5070 {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02),
5071 .driver_info
= QETH_CARD_TYPE_OSX
},
5074 MODULE_DEVICE_TABLE(ccw
, qeth_ids
);
5076 static struct ccw_driver qeth_ccw_driver
= {
5078 .owner
= THIS_MODULE
,
5082 .probe
= ccwgroup_probe_ccwdev
,
5083 .remove
= ccwgroup_remove_ccwdev
,
5086 int qeth_core_hardsetup_card(struct qeth_card
*card
)
5091 QETH_DBF_TEXT(SETUP
, 2, "hrdsetup");
5092 atomic_set(&card
->force_alloc_skb
, 0);
5093 qeth_update_from_chp_desc(card
);
5096 QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n",
5097 dev_name(&card
->gdev
->dev
));
5098 rc
= qeth_qdio_clear_card(card
, card
->info
.type
!= QETH_CARD_TYPE_IQD
);
5099 ccw_device_set_offline(CARD_DDEV(card
));
5100 ccw_device_set_offline(CARD_WDEV(card
));
5101 ccw_device_set_offline(CARD_RDEV(card
));
5102 qdio_free(CARD_DDEV(card
));
5103 rc
= ccw_device_set_online(CARD_RDEV(card
));
5106 rc
= ccw_device_set_online(CARD_WDEV(card
));
5109 rc
= ccw_device_set_online(CARD_DDEV(card
));
5113 if (rc
== -ERESTARTSYS
) {
5114 QETH_DBF_TEXT(SETUP
, 2, "break1");
5117 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
5123 qeth_determine_capabilities(card
);
5124 qeth_init_tokens(card
);
5125 qeth_init_func_level(card
);
5126 rc
= qeth_idx_activate_channel(&card
->read
, qeth_idx_read_cb
);
5127 if (rc
== -ERESTARTSYS
) {
5128 QETH_DBF_TEXT(SETUP
, 2, "break2");
5131 QETH_DBF_TEXT_(SETUP
, 2, "3err%d", rc
);
5137 rc
= qeth_idx_activate_channel(&card
->write
, qeth_idx_write_cb
);
5138 if (rc
== -ERESTARTSYS
) {
5139 QETH_DBF_TEXT(SETUP
, 2, "break3");
5142 QETH_DBF_TEXT_(SETUP
, 2, "4err%d", rc
);
5148 card
->read_or_write_problem
= 0;
5149 rc
= qeth_mpc_initialize(card
);
5151 QETH_DBF_TEXT_(SETUP
, 2, "5err%d", rc
);
5155 rc
= qeth_send_startlan(card
);
5157 QETH_DBF_TEXT_(SETUP
, 2, "6err%d", rc
);
5158 if (rc
== IPA_RC_LAN_OFFLINE
) {
5159 dev_warn(&card
->gdev
->dev
,
5160 "The LAN is offline\n");
5161 card
->lan_online
= 0;
5167 card
->lan_online
= 1;
5169 card
->options
.ipa4
.supported_funcs
= 0;
5170 card
->options
.ipa6
.supported_funcs
= 0;
5171 card
->options
.adp
.supported_funcs
= 0;
5172 card
->options
.sbp
.supported_funcs
= 0;
5173 card
->info
.diagass_support
= 0;
5174 rc
= qeth_query_ipassists(card
, QETH_PROT_IPV4
);
5177 if (qeth_is_supported(card
, IPA_IPV6
)) {
5178 rc
= qeth_query_ipassists(card
, QETH_PROT_IPV6
);
5182 if (qeth_is_supported(card
, IPA_SETADAPTERPARMS
)) {
5183 rc
= qeth_query_setadapterparms(card
);
5185 QETH_DBF_TEXT_(SETUP
, 2, "7err%d", rc
);
5189 if (qeth_adp_supported(card
, IPA_SETADP_SET_DIAG_ASSIST
)) {
5190 rc
= qeth_query_setdiagass(card
);
5192 QETH_DBF_TEXT_(SETUP
, 2, "8err%d", rc
);
5198 dev_warn(&card
->gdev
->dev
, "The qeth device driver failed to recover "
5199 "an error on the device\n");
5200 QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n",
5201 dev_name(&card
->gdev
->dev
), rc
);
5204 EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card
);
5206 static void qeth_create_skb_frag(struct qdio_buffer_element
*element
,
5207 struct sk_buff
*skb
, int offset
, int data_len
)
5209 struct page
*page
= virt_to_page(element
->addr
);
5210 unsigned int next_frag
;
5212 /* first fill the linear space */
5214 unsigned int linear
= min(data_len
, skb_tailroom(skb
));
5216 skb_put_data(skb
, element
->addr
+ offset
, linear
);
5221 /* fall through to add page frag for remaining data */
5224 next_frag
= skb_shinfo(skb
)->nr_frags
;
5226 skb_add_rx_frag(skb
, next_frag
, page
, offset
, data_len
, data_len
);
5229 static inline int qeth_is_last_sbale(struct qdio_buffer_element
*sbale
)
5231 return (sbale
->eflags
& SBAL_EFLAGS_LAST_ENTRY
);
5234 struct sk_buff
*qeth_core_get_next_skb(struct qeth_card
*card
,
5235 struct qeth_qdio_buffer
*qethbuffer
,
5236 struct qdio_buffer_element
**__element
, int *__offset
,
5237 struct qeth_hdr
**hdr
)
5239 struct qdio_buffer_element
*element
= *__element
;
5240 struct qdio_buffer
*buffer
= qethbuffer
->buffer
;
5241 int offset
= *__offset
;
5242 struct sk_buff
*skb
;
5249 /* qeth_hdr must not cross element boundaries */
5250 while (element
->length
< offset
+ sizeof(struct qeth_hdr
)) {
5251 if (qeth_is_last_sbale(element
))
5256 *hdr
= element
->addr
+ offset
;
5258 offset
+= sizeof(struct qeth_hdr
);
5259 switch ((*hdr
)->hdr
.l2
.id
) {
5260 case QETH_HEADER_TYPE_LAYER2
:
5261 skb_len
= (*hdr
)->hdr
.l2
.pkt_length
;
5263 case QETH_HEADER_TYPE_LAYER3
:
5264 skb_len
= (*hdr
)->hdr
.l3
.length
;
5265 headroom
= ETH_HLEN
;
5267 case QETH_HEADER_TYPE_OSN
:
5268 skb_len
= (*hdr
)->hdr
.osn
.pdu_length
;
5269 headroom
= sizeof(struct qeth_hdr
);
5278 if (((skb_len
>= card
->options
.rx_sg_cb
) &&
5279 (!(card
->info
.type
== QETH_CARD_TYPE_OSN
)) &&
5280 (!atomic_read(&card
->force_alloc_skb
))) ||
5281 (card
->options
.cq
== QETH_CQ_ENABLED
))
5284 if (use_rx_sg
&& qethbuffer
->rx_skb
) {
5285 /* QETH_CQ_ENABLED only: */
5286 skb
= qethbuffer
->rx_skb
;
5287 qethbuffer
->rx_skb
= NULL
;
5289 unsigned int linear
= (use_rx_sg
) ? QETH_RX_PULL_LEN
: skb_len
;
5291 skb
= napi_alloc_skb(&card
->napi
, linear
+ headroom
);
5296 skb_reserve(skb
, headroom
);
5298 data_ptr
= element
->addr
+ offset
;
5300 data_len
= min(skb_len
, (int)(element
->length
- offset
));
5303 qeth_create_skb_frag(element
, skb
, offset
,
5306 skb_put_data(skb
, data_ptr
, data_len
);
5308 skb_len
-= data_len
;
5310 if (qeth_is_last_sbale(element
)) {
5311 QETH_CARD_TEXT(card
, 4, "unexeob");
5312 QETH_CARD_HEX(card
, 2, buffer
, sizeof(void *));
5313 dev_kfree_skb_any(skb
);
5314 card
->stats
.rx_errors
++;
5319 data_ptr
= element
->addr
;
5324 *__element
= element
;
5326 if (use_rx_sg
&& card
->options
.performance_stats
) {
5327 card
->perf_stats
.sg_skbs_rx
++;
5328 card
->perf_stats
.sg_frags_rx
+= skb_shinfo(skb
)->nr_frags
;
5332 if (net_ratelimit()) {
5333 QETH_CARD_TEXT(card
, 2, "noskbmem");
5335 card
->stats
.rx_dropped
++;
5338 EXPORT_SYMBOL_GPL(qeth_core_get_next_skb
);
5340 int qeth_poll(struct napi_struct
*napi
, int budget
)
5342 struct qeth_card
*card
= container_of(napi
, struct qeth_card
, napi
);
5344 struct qeth_qdio_buffer
*buffer
;
5346 int new_budget
= budget
;
5348 if (card
->options
.performance_stats
) {
5349 card
->perf_stats
.inbound_cnt
++;
5350 card
->perf_stats
.inbound_start_time
= qeth_get_micros();
5354 if (!card
->rx
.b_count
) {
5355 card
->rx
.qdio_err
= 0;
5356 card
->rx
.b_count
= qdio_get_next_buffers(
5357 card
->data
.ccwdev
, 0, &card
->rx
.b_index
,
5358 &card
->rx
.qdio_err
);
5359 if (card
->rx
.b_count
<= 0) {
5360 card
->rx
.b_count
= 0;
5363 card
->rx
.b_element
=
5364 &card
->qdio
.in_q
->bufs
[card
->rx
.b_index
]
5365 .buffer
->element
[0];
5366 card
->rx
.e_offset
= 0;
5369 while (card
->rx
.b_count
) {
5370 buffer
= &card
->qdio
.in_q
->bufs
[card
->rx
.b_index
];
5371 if (!(card
->rx
.qdio_err
&&
5372 qeth_check_qdio_errors(card
, buffer
->buffer
,
5373 card
->rx
.qdio_err
, "qinerr")))
5375 card
->discipline
->process_rx_buffer(
5376 card
, new_budget
, &done
);
5381 if (card
->options
.performance_stats
)
5382 card
->perf_stats
.bufs_rec
++;
5383 qeth_put_buffer_pool_entry(card
,
5384 buffer
->pool_entry
);
5385 qeth_queue_input_buffer(card
, card
->rx
.b_index
);
5387 if (card
->rx
.b_count
) {
5389 (card
->rx
.b_index
+ 1) %
5390 QDIO_MAX_BUFFERS_PER_Q
;
5391 card
->rx
.b_element
=
5393 ->bufs
[card
->rx
.b_index
]
5394 .buffer
->element
[0];
5395 card
->rx
.e_offset
= 0;
5399 if (work_done
>= budget
)
5402 new_budget
= budget
- work_done
;
5406 napi_complete_done(napi
, work_done
);
5407 if (qdio_start_irq(card
->data
.ccwdev
, 0))
5408 napi_schedule(&card
->napi
);
5410 if (card
->options
.performance_stats
)
5411 card
->perf_stats
.inbound_time
+= qeth_get_micros() -
5412 card
->perf_stats
.inbound_start_time
;
5415 EXPORT_SYMBOL_GPL(qeth_poll
);
5417 static int qeth_setassparms_inspect_rc(struct qeth_ipa_cmd
*cmd
)
5419 if (!cmd
->hdr
.return_code
)
5420 cmd
->hdr
.return_code
= cmd
->data
.setassparms
.hdr
.return_code
;
5421 return cmd
->hdr
.return_code
;
5424 int qeth_setassparms_cb(struct qeth_card
*card
,
5425 struct qeth_reply
*reply
, unsigned long data
)
5427 struct qeth_ipa_cmd
*cmd
;
5429 QETH_CARD_TEXT(card
, 4, "defadpcb");
5431 cmd
= (struct qeth_ipa_cmd
*) data
;
5432 if (cmd
->hdr
.return_code
== 0) {
5433 cmd
->hdr
.return_code
= cmd
->data
.setassparms
.hdr
.return_code
;
5434 if (cmd
->hdr
.prot_version
== QETH_PROT_IPV4
)
5435 card
->options
.ipa4
.enabled_funcs
= cmd
->hdr
.ipa_enabled
;
5436 if (cmd
->hdr
.prot_version
== QETH_PROT_IPV6
)
5437 card
->options
.ipa6
.enabled_funcs
= cmd
->hdr
.ipa_enabled
;
5441 EXPORT_SYMBOL_GPL(qeth_setassparms_cb
);
5443 struct qeth_cmd_buffer
*qeth_get_setassparms_cmd(struct qeth_card
*card
,
5444 enum qeth_ipa_funcs ipa_func
,
5445 __u16 cmd_code
, __u16 len
,
5446 enum qeth_prot_versions prot
)
5448 struct qeth_cmd_buffer
*iob
;
5449 struct qeth_ipa_cmd
*cmd
;
5451 QETH_CARD_TEXT(card
, 4, "getasscm");
5452 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_SETASSPARMS
, prot
);
5455 cmd
= __ipa_cmd(iob
);
5456 cmd
->data
.setassparms
.hdr
.assist_no
= ipa_func
;
5457 cmd
->data
.setassparms
.hdr
.length
= 8 + len
;
5458 cmd
->data
.setassparms
.hdr
.command_code
= cmd_code
;
5459 cmd
->data
.setassparms
.hdr
.return_code
= 0;
5460 cmd
->data
.setassparms
.hdr
.seq_no
= 0;
5465 EXPORT_SYMBOL_GPL(qeth_get_setassparms_cmd
);
5467 int qeth_send_setassparms(struct qeth_card
*card
,
5468 struct qeth_cmd_buffer
*iob
, __u16 len
, long data
,
5469 int (*reply_cb
)(struct qeth_card
*,
5470 struct qeth_reply
*, unsigned long),
5474 struct qeth_ipa_cmd
*cmd
;
5476 QETH_CARD_TEXT(card
, 4, "sendassp");
5478 cmd
= __ipa_cmd(iob
);
5479 if (len
<= sizeof(__u32
))
5480 cmd
->data
.setassparms
.data
.flags_32bit
= (__u32
) data
;
5481 else /* (len > sizeof(__u32)) */
5482 memcpy(&cmd
->data
.setassparms
.data
, (void *) data
, len
);
5484 rc
= qeth_send_ipa_cmd(card
, iob
, reply_cb
, reply_param
);
5487 EXPORT_SYMBOL_GPL(qeth_send_setassparms
);
5489 int qeth_send_simple_setassparms_prot(struct qeth_card
*card
,
5490 enum qeth_ipa_funcs ipa_func
,
5491 u16 cmd_code
, long data
,
5492 enum qeth_prot_versions prot
)
5496 struct qeth_cmd_buffer
*iob
;
5498 QETH_CARD_TEXT_(card
, 4, "simassp%i", prot
);
5500 length
= sizeof(__u32
);
5501 iob
= qeth_get_setassparms_cmd(card
, ipa_func
, cmd_code
, length
, prot
);
5504 rc
= qeth_send_setassparms(card
, iob
, length
, data
,
5505 qeth_setassparms_cb
, NULL
);
5508 EXPORT_SYMBOL_GPL(qeth_send_simple_setassparms_prot
);
5510 static void qeth_unregister_dbf_views(void)
5513 for (x
= 0; x
< QETH_DBF_INFOS
; x
++) {
5514 debug_unregister(qeth_dbf
[x
].id
);
5515 qeth_dbf
[x
].id
= NULL
;
5519 void qeth_dbf_longtext(debug_info_t
*id
, int level
, char *fmt
, ...)
5521 char dbf_txt_buf
[32];
5524 if (!debug_level_enabled(id
, level
))
5526 va_start(args
, fmt
);
5527 vsnprintf(dbf_txt_buf
, sizeof(dbf_txt_buf
), fmt
, args
);
5529 debug_text_event(id
, level
, dbf_txt_buf
);
5531 EXPORT_SYMBOL_GPL(qeth_dbf_longtext
);
5533 static int qeth_register_dbf_views(void)
5538 for (x
= 0; x
< QETH_DBF_INFOS
; x
++) {
5539 /* register the areas */
5540 qeth_dbf
[x
].id
= debug_register(qeth_dbf
[x
].name
,
5544 if (qeth_dbf
[x
].id
== NULL
) {
5545 qeth_unregister_dbf_views();
5549 /* register a view */
5550 ret
= debug_register_view(qeth_dbf
[x
].id
, qeth_dbf
[x
].view
);
5552 qeth_unregister_dbf_views();
5556 /* set a passing level */
5557 debug_set_level(qeth_dbf
[x
].id
, qeth_dbf
[x
].level
);
5563 int qeth_core_load_discipline(struct qeth_card
*card
,
5564 enum qeth_discipline_id discipline
)
5568 mutex_lock(&qeth_mod_mutex
);
5569 switch (discipline
) {
5570 case QETH_DISCIPLINE_LAYER3
:
5571 card
->discipline
= try_then_request_module(
5572 symbol_get(qeth_l3_discipline
), "qeth_l3");
5574 case QETH_DISCIPLINE_LAYER2
:
5575 card
->discipline
= try_then_request_module(
5576 symbol_get(qeth_l2_discipline
), "qeth_l2");
5582 if (!card
->discipline
) {
5583 dev_err(&card
->gdev
->dev
, "There is no kernel module to "
5584 "support discipline %d\n", discipline
);
5587 mutex_unlock(&qeth_mod_mutex
);
5591 void qeth_core_free_discipline(struct qeth_card
*card
)
5593 if (card
->options
.layer2
)
5594 symbol_put(qeth_l2_discipline
);
5596 symbol_put(qeth_l3_discipline
);
5597 card
->discipline
= NULL
;
5600 const struct device_type qeth_generic_devtype
= {
5601 .name
= "qeth_generic",
5602 .groups
= qeth_generic_attr_groups
,
5604 EXPORT_SYMBOL_GPL(qeth_generic_devtype
);
5606 static const struct device_type qeth_osn_devtype
= {
5608 .groups
= qeth_osn_attr_groups
,
5611 #define DBF_NAME_LEN 20
5613 struct qeth_dbf_entry
{
5614 char dbf_name
[DBF_NAME_LEN
];
5615 debug_info_t
*dbf_info
;
5616 struct list_head dbf_list
;
5619 static LIST_HEAD(qeth_dbf_list
);
5620 static DEFINE_MUTEX(qeth_dbf_list_mutex
);
5622 static debug_info_t
*qeth_get_dbf_entry(char *name
)
5624 struct qeth_dbf_entry
*entry
;
5625 debug_info_t
*rc
= NULL
;
5627 mutex_lock(&qeth_dbf_list_mutex
);
5628 list_for_each_entry(entry
, &qeth_dbf_list
, dbf_list
) {
5629 if (strcmp(entry
->dbf_name
, name
) == 0) {
5630 rc
= entry
->dbf_info
;
5634 mutex_unlock(&qeth_dbf_list_mutex
);
5638 static int qeth_add_dbf_entry(struct qeth_card
*card
, char *name
)
5640 struct qeth_dbf_entry
*new_entry
;
5642 card
->debug
= debug_register(name
, 2, 1, 8);
5644 QETH_DBF_TEXT_(SETUP
, 2, "%s", "qcdbf");
5647 if (debug_register_view(card
->debug
, &debug_hex_ascii_view
))
5649 new_entry
= kzalloc(sizeof(struct qeth_dbf_entry
), GFP_KERNEL
);
5652 strncpy(new_entry
->dbf_name
, name
, DBF_NAME_LEN
);
5653 new_entry
->dbf_info
= card
->debug
;
5654 mutex_lock(&qeth_dbf_list_mutex
);
5655 list_add(&new_entry
->dbf_list
, &qeth_dbf_list
);
5656 mutex_unlock(&qeth_dbf_list_mutex
);
5661 debug_unregister(card
->debug
);
5666 static void qeth_clear_dbf_list(void)
5668 struct qeth_dbf_entry
*entry
, *tmp
;
5670 mutex_lock(&qeth_dbf_list_mutex
);
5671 list_for_each_entry_safe(entry
, tmp
, &qeth_dbf_list
, dbf_list
) {
5672 list_del(&entry
->dbf_list
);
5673 debug_unregister(entry
->dbf_info
);
5676 mutex_unlock(&qeth_dbf_list_mutex
);
5679 static struct net_device
*qeth_alloc_netdev(struct qeth_card
*card
)
5681 struct net_device
*dev
;
5683 switch (card
->info
.type
) {
5684 case QETH_CARD_TYPE_IQD
:
5685 dev
= alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN
, ether_setup
);
5687 case QETH_CARD_TYPE_OSN
:
5688 dev
= alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN
, ether_setup
);
5691 dev
= alloc_etherdev(0);
5697 dev
->ml_priv
= card
;
5698 dev
->watchdog_timeo
= QETH_TX_TIMEOUT
;
5699 dev
->min_mtu
= IS_OSN(card
) ? 64 : 576;
5700 /* initialized when device first goes online: */
5703 SET_NETDEV_DEV(dev
, &card
->gdev
->dev
);
5704 netif_carrier_off(dev
);
5706 if (!IS_OSN(card
)) {
5707 dev
->priv_flags
&= ~IFF_TX_SKB_SHARING
;
5708 dev
->hw_features
|= NETIF_F_SG
;
5709 dev
->vlan_features
|= NETIF_F_SG
;
5711 dev
->features
|= NETIF_F_SG
;
5717 struct net_device
*qeth_clone_netdev(struct net_device
*orig
)
5719 struct net_device
*clone
= qeth_alloc_netdev(orig
->ml_priv
);
5724 clone
->dev_port
= orig
->dev_port
;
5728 static int qeth_core_probe_device(struct ccwgroup_device
*gdev
)
5730 struct qeth_card
*card
;
5733 enum qeth_discipline_id enforced_disc
;
5734 unsigned long flags
;
5735 char dbf_name
[DBF_NAME_LEN
];
5737 QETH_DBF_TEXT(SETUP
, 2, "probedev");
5740 if (!get_device(dev
))
5743 QETH_DBF_TEXT_(SETUP
, 2, "%s", dev_name(&gdev
->dev
));
5745 card
= qeth_alloc_card();
5747 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", -ENOMEM
);
5752 snprintf(dbf_name
, sizeof(dbf_name
), "qeth_card_%s",
5753 dev_name(&gdev
->dev
));
5754 card
->debug
= qeth_get_dbf_entry(dbf_name
);
5756 rc
= qeth_add_dbf_entry(card
, dbf_name
);
5761 card
->read
.ccwdev
= gdev
->cdev
[0];
5762 card
->write
.ccwdev
= gdev
->cdev
[1];
5763 card
->data
.ccwdev
= gdev
->cdev
[2];
5764 dev_set_drvdata(&gdev
->dev
, card
);
5766 gdev
->cdev
[0]->handler
= qeth_irq
;
5767 gdev
->cdev
[1]->handler
= qeth_irq
;
5768 gdev
->cdev
[2]->handler
= qeth_irq
;
5770 qeth_setup_card(card
);
5771 qeth_update_from_chp_desc(card
);
5773 card
->dev
= qeth_alloc_netdev(card
);
5779 qeth_determine_capabilities(card
);
5780 enforced_disc
= qeth_enforce_discipline(card
);
5781 switch (enforced_disc
) {
5782 case QETH_DISCIPLINE_UNDETERMINED
:
5783 gdev
->dev
.type
= &qeth_generic_devtype
;
5786 card
->info
.layer_enforced
= true;
5787 rc
= qeth_core_load_discipline(card
, enforced_disc
);
5791 gdev
->dev
.type
= (card
->info
.type
!= QETH_CARD_TYPE_OSN
)
5792 ? card
->discipline
->devtype
5793 : &qeth_osn_devtype
;
5794 rc
= card
->discipline
->setup(card
->gdev
);
5800 write_lock_irqsave(&qeth_core_card_list
.rwlock
, flags
);
5801 list_add_tail(&card
->list
, &qeth_core_card_list
.list
);
5802 write_unlock_irqrestore(&qeth_core_card_list
.rwlock
, flags
);
5806 qeth_core_free_discipline(card
);
5808 free_netdev(card
->dev
);
5810 qeth_core_free_card(card
);
5816 static void qeth_core_remove_device(struct ccwgroup_device
*gdev
)
5818 unsigned long flags
;
5819 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5821 QETH_DBF_TEXT(SETUP
, 2, "removedv");
5823 if (card
->discipline
) {
5824 card
->discipline
->remove(gdev
);
5825 qeth_core_free_discipline(card
);
5828 write_lock_irqsave(&qeth_core_card_list
.rwlock
, flags
);
5829 list_del(&card
->list
);
5830 write_unlock_irqrestore(&qeth_core_card_list
.rwlock
, flags
);
5831 free_netdev(card
->dev
);
5832 qeth_core_free_card(card
);
5833 dev_set_drvdata(&gdev
->dev
, NULL
);
5834 put_device(&gdev
->dev
);
5837 static int qeth_core_set_online(struct ccwgroup_device
*gdev
)
5839 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5841 enum qeth_discipline_id def_discipline
;
5843 if (!card
->discipline
) {
5844 if (card
->info
.type
== QETH_CARD_TYPE_IQD
)
5845 def_discipline
= QETH_DISCIPLINE_LAYER3
;
5847 def_discipline
= QETH_DISCIPLINE_LAYER2
;
5848 rc
= qeth_core_load_discipline(card
, def_discipline
);
5851 rc
= card
->discipline
->setup(card
->gdev
);
5853 qeth_core_free_discipline(card
);
5857 rc
= card
->discipline
->set_online(gdev
);
5862 static int qeth_core_set_offline(struct ccwgroup_device
*gdev
)
5864 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5865 return card
->discipline
->set_offline(gdev
);
5868 static void qeth_core_shutdown(struct ccwgroup_device
*gdev
)
5870 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5871 qeth_set_allowed_threads(card
, 0, 1);
5872 if ((gdev
->state
== CCWGROUP_ONLINE
) && card
->info
.hwtrap
)
5873 qeth_hw_trap(card
, QETH_DIAGS_TRAP_DISARM
);
5874 qeth_qdio_clear_card(card
, 0);
5875 qeth_clear_qdio_buffers(card
);
5876 qdio_free(CARD_DDEV(card
));
5879 static int qeth_core_freeze(struct ccwgroup_device
*gdev
)
5881 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5882 if (card
->discipline
&& card
->discipline
->freeze
)
5883 return card
->discipline
->freeze(gdev
);
5887 static int qeth_core_thaw(struct ccwgroup_device
*gdev
)
5889 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5890 if (card
->discipline
&& card
->discipline
->thaw
)
5891 return card
->discipline
->thaw(gdev
);
5895 static int qeth_core_restore(struct ccwgroup_device
*gdev
)
5897 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5898 if (card
->discipline
&& card
->discipline
->restore
)
5899 return card
->discipline
->restore(gdev
);
5903 static ssize_t
group_store(struct device_driver
*ddrv
, const char *buf
,
5908 err
= ccwgroup_create_dev(qeth_core_root_dev
, to_ccwgroupdrv(ddrv
), 3,
5911 return err
? err
: count
;
5913 static DRIVER_ATTR_WO(group
);
5915 static struct attribute
*qeth_drv_attrs
[] = {
5916 &driver_attr_group
.attr
,
5919 static struct attribute_group qeth_drv_attr_group
= {
5920 .attrs
= qeth_drv_attrs
,
5922 static const struct attribute_group
*qeth_drv_attr_groups
[] = {
5923 &qeth_drv_attr_group
,
5927 static struct ccwgroup_driver qeth_core_ccwgroup_driver
= {
5929 .groups
= qeth_drv_attr_groups
,
5930 .owner
= THIS_MODULE
,
5933 .ccw_driver
= &qeth_ccw_driver
,
5934 .setup
= qeth_core_probe_device
,
5935 .remove
= qeth_core_remove_device
,
5936 .set_online
= qeth_core_set_online
,
5937 .set_offline
= qeth_core_set_offline
,
5938 .shutdown
= qeth_core_shutdown
,
5941 .freeze
= qeth_core_freeze
,
5942 .thaw
= qeth_core_thaw
,
5943 .restore
= qeth_core_restore
,
5946 int qeth_do_ioctl(struct net_device
*dev
, struct ifreq
*rq
, int cmd
)
5948 struct qeth_card
*card
= dev
->ml_priv
;
5949 struct mii_ioctl_data
*mii_data
;
5955 if (!qeth_card_hw_is_reachable(card
))
5958 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
5962 case SIOC_QETH_ADP_SET_SNMP_CONTROL
:
5963 rc
= qeth_snmp_command(card
, rq
->ifr_ifru
.ifru_data
);
5965 case SIOC_QETH_GET_CARD_TYPE
:
5966 if ((card
->info
.type
== QETH_CARD_TYPE_OSD
||
5967 card
->info
.type
== QETH_CARD_TYPE_OSM
||
5968 card
->info
.type
== QETH_CARD_TYPE_OSX
) &&
5969 !card
->info
.guestlan
)
5974 mii_data
= if_mii(rq
);
5975 mii_data
->phy_id
= 0;
5978 mii_data
= if_mii(rq
);
5979 if (mii_data
->phy_id
!= 0)
5982 mii_data
->val_out
= qeth_mdio_read(dev
,
5983 mii_data
->phy_id
, mii_data
->reg_num
);
5985 case SIOC_QETH_QUERY_OAT
:
5986 rc
= qeth_query_oat_command(card
, rq
->ifr_ifru
.ifru_data
);
5989 if (card
->discipline
->do_ioctl
)
5990 rc
= card
->discipline
->do_ioctl(dev
, rq
, cmd
);
5995 QETH_CARD_TEXT_(card
, 2, "ioce%x", rc
);
5998 EXPORT_SYMBOL_GPL(qeth_do_ioctl
);
6001 const char str
[ETH_GSTRING_LEN
];
6002 } qeth_ethtool_stats_keys
[] = {
6007 {"tx skbs no packing"},
6008 {"tx buffers no packing"},
6009 {"tx skbs packing"},
6010 {"tx buffers packing"},
6012 {"tx buffer elements"},
6013 /* 10 */{"rx sg skbs"},
6015 {"rx sg page allocs"},
6016 {"tx large kbytes"},
6018 {"tx pk state ch n->p"},
6019 {"tx pk state ch p->n"},
6020 {"tx pk watermark low"},
6021 {"tx pk watermark high"},
6022 {"queue 0 buffer usage"},
6023 /* 20 */{"queue 1 buffer usage"},
6024 {"queue 2 buffer usage"},
6025 {"queue 3 buffer usage"},
6028 {"rx do_QDIO time"},
6029 {"rx do_QDIO count"},
6030 {"tx handler time"},
6031 {"tx handler count"},
6033 /* 30 */{"tx count"},
6034 {"tx do_QDIO time"},
6035 {"tx do_QDIO count"},
6039 {"cq handler count"},
6040 {"cq handler time"},
6044 int qeth_core_get_sset_count(struct net_device
*dev
, int stringset
)
6046 switch (stringset
) {
6048 return (sizeof(qeth_ethtool_stats_keys
) / ETH_GSTRING_LEN
);
6053 EXPORT_SYMBOL_GPL(qeth_core_get_sset_count
);
6055 void qeth_core_get_ethtool_stats(struct net_device
*dev
,
6056 struct ethtool_stats
*stats
, u64
*data
)
6058 struct qeth_card
*card
= dev
->ml_priv
;
6059 data
[0] = card
->stats
.rx_packets
-
6060 card
->perf_stats
.initial_rx_packets
;
6061 data
[1] = card
->perf_stats
.bufs_rec
;
6062 data
[2] = card
->stats
.tx_packets
-
6063 card
->perf_stats
.initial_tx_packets
;
6064 data
[3] = card
->perf_stats
.bufs_sent
;
6065 data
[4] = card
->stats
.tx_packets
- card
->perf_stats
.initial_tx_packets
6066 - card
->perf_stats
.skbs_sent_pack
;
6067 data
[5] = card
->perf_stats
.bufs_sent
- card
->perf_stats
.bufs_sent_pack
;
6068 data
[6] = card
->perf_stats
.skbs_sent_pack
;
6069 data
[7] = card
->perf_stats
.bufs_sent_pack
;
6070 data
[8] = card
->perf_stats
.sg_skbs_sent
;
6071 data
[9] = card
->perf_stats
.buf_elements_sent
;
6072 data
[10] = card
->perf_stats
.sg_skbs_rx
;
6073 data
[11] = card
->perf_stats
.sg_frags_rx
;
6074 data
[12] = card
->perf_stats
.sg_alloc_page_rx
;
6075 data
[13] = (card
->perf_stats
.large_send_bytes
>> 10);
6076 data
[14] = card
->perf_stats
.large_send_cnt
;
6077 data
[15] = card
->perf_stats
.sc_dp_p
;
6078 data
[16] = card
->perf_stats
.sc_p_dp
;
6079 data
[17] = QETH_LOW_WATERMARK_PACK
;
6080 data
[18] = QETH_HIGH_WATERMARK_PACK
;
6081 data
[19] = atomic_read(&card
->qdio
.out_qs
[0]->used_buffers
);
6082 data
[20] = (card
->qdio
.no_out_queues
> 1) ?
6083 atomic_read(&card
->qdio
.out_qs
[1]->used_buffers
) : 0;
6084 data
[21] = (card
->qdio
.no_out_queues
> 2) ?
6085 atomic_read(&card
->qdio
.out_qs
[2]->used_buffers
) : 0;
6086 data
[22] = (card
->qdio
.no_out_queues
> 3) ?
6087 atomic_read(&card
->qdio
.out_qs
[3]->used_buffers
) : 0;
6088 data
[23] = card
->perf_stats
.inbound_time
;
6089 data
[24] = card
->perf_stats
.inbound_cnt
;
6090 data
[25] = card
->perf_stats
.inbound_do_qdio_time
;
6091 data
[26] = card
->perf_stats
.inbound_do_qdio_cnt
;
6092 data
[27] = card
->perf_stats
.outbound_handler_time
;
6093 data
[28] = card
->perf_stats
.outbound_handler_cnt
;
6094 data
[29] = card
->perf_stats
.outbound_time
;
6095 data
[30] = card
->perf_stats
.outbound_cnt
;
6096 data
[31] = card
->perf_stats
.outbound_do_qdio_time
;
6097 data
[32] = card
->perf_stats
.outbound_do_qdio_cnt
;
6098 data
[33] = card
->perf_stats
.tx_csum
;
6099 data
[34] = card
->perf_stats
.tx_lin
;
6100 data
[35] = card
->perf_stats
.tx_linfail
;
6101 data
[36] = card
->perf_stats
.cq_cnt
;
6102 data
[37] = card
->perf_stats
.cq_time
;
6103 data
[38] = card
->perf_stats
.rx_csum
;
6105 EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats
);
6107 void qeth_core_get_strings(struct net_device
*dev
, u32 stringset
, u8
*data
)
6109 switch (stringset
) {
6111 memcpy(data
, &qeth_ethtool_stats_keys
,
6112 sizeof(qeth_ethtool_stats_keys
));
6119 EXPORT_SYMBOL_GPL(qeth_core_get_strings
);
6121 void qeth_core_get_drvinfo(struct net_device
*dev
,
6122 struct ethtool_drvinfo
*info
)
6124 struct qeth_card
*card
= dev
->ml_priv
;
6126 strlcpy(info
->driver
, card
->options
.layer2
? "qeth_l2" : "qeth_l3",
6127 sizeof(info
->driver
));
6128 strlcpy(info
->version
, "1.0", sizeof(info
->version
));
6129 strlcpy(info
->fw_version
, card
->info
.mcl_level
,
6130 sizeof(info
->fw_version
));
6131 snprintf(info
->bus_info
, sizeof(info
->bus_info
), "%s/%s/%s",
6132 CARD_RDEV_ID(card
), CARD_WDEV_ID(card
), CARD_DDEV_ID(card
));
6134 EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo
);
6136 /* Helper function to fill 'advertising' and 'supported' which are the same. */
6137 /* Autoneg and full-duplex are supported and advertised unconditionally. */
6138 /* Always advertise and support all speeds up to specified, and only one */
6139 /* specified port type. */
6140 static void qeth_set_cmd_adv_sup(struct ethtool_link_ksettings
*cmd
,
6141 int maxspeed
, int porttype
)
6143 ethtool_link_ksettings_zero_link_mode(cmd
, supported
);
6144 ethtool_link_ksettings_zero_link_mode(cmd
, advertising
);
6145 ethtool_link_ksettings_zero_link_mode(cmd
, lp_advertising
);
6147 ethtool_link_ksettings_add_link_mode(cmd
, supported
, Autoneg
);
6148 ethtool_link_ksettings_add_link_mode(cmd
, advertising
, Autoneg
);
6152 ethtool_link_ksettings_add_link_mode(cmd
, supported
, TP
);
6153 ethtool_link_ksettings_add_link_mode(cmd
, advertising
, TP
);
6156 ethtool_link_ksettings_add_link_mode(cmd
, supported
, FIBRE
);
6157 ethtool_link_ksettings_add_link_mode(cmd
, advertising
, FIBRE
);
6160 ethtool_link_ksettings_add_link_mode(cmd
, supported
, TP
);
6161 ethtool_link_ksettings_add_link_mode(cmd
, advertising
, TP
);
6165 /* fallthrough from high to low, to select all legal speeds: */
6168 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6170 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6173 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6175 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6177 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6179 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6182 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6184 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6186 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6188 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6191 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6193 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6195 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6197 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6199 /* end fallthrough */
6202 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6204 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6206 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6208 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6214 int qeth_core_ethtool_get_link_ksettings(struct net_device
*netdev
,
6215 struct ethtool_link_ksettings
*cmd
)
6217 struct qeth_card
*card
= netdev
->ml_priv
;
6218 enum qeth_link_types link_type
;
6219 struct carrier_info carrier_info
;
6222 if ((card
->info
.type
== QETH_CARD_TYPE_IQD
) || (card
->info
.guestlan
))
6223 link_type
= QETH_LINK_TYPE_10GBIT_ETH
;
6225 link_type
= card
->info
.link_type
;
6227 cmd
->base
.duplex
= DUPLEX_FULL
;
6228 cmd
->base
.autoneg
= AUTONEG_ENABLE
;
6229 cmd
->base
.phy_address
= 0;
6230 cmd
->base
.mdio_support
= 0;
6231 cmd
->base
.eth_tp_mdix
= ETH_TP_MDI_INVALID
;
6232 cmd
->base
.eth_tp_mdix_ctrl
= ETH_TP_MDI_INVALID
;
6234 switch (link_type
) {
6235 case QETH_LINK_TYPE_FAST_ETH
:
6236 case QETH_LINK_TYPE_LANE_ETH100
:
6237 cmd
->base
.speed
= SPEED_100
;
6238 cmd
->base
.port
= PORT_TP
;
6240 case QETH_LINK_TYPE_GBIT_ETH
:
6241 case QETH_LINK_TYPE_LANE_ETH1000
:
6242 cmd
->base
.speed
= SPEED_1000
;
6243 cmd
->base
.port
= PORT_FIBRE
;
6245 case QETH_LINK_TYPE_10GBIT_ETH
:
6246 cmd
->base
.speed
= SPEED_10000
;
6247 cmd
->base
.port
= PORT_FIBRE
;
6250 cmd
->base
.speed
= SPEED_10
;
6251 cmd
->base
.port
= PORT_TP
;
6253 qeth_set_cmd_adv_sup(cmd
, cmd
->base
.speed
, cmd
->base
.port
);
6255 /* Check if we can obtain more accurate information. */
6256 /* If QUERY_CARD_INFO command is not supported or fails, */
6257 /* just return the heuristics that was filled above. */
6258 if (!qeth_card_hw_is_reachable(card
))
6260 rc
= qeth_query_card_info(card
, &carrier_info
);
6261 if (rc
== -EOPNOTSUPP
) /* for old hardware, return heuristic */
6263 if (rc
) /* report error from the hardware operation */
6265 /* on success, fill in the information got from the hardware */
6268 "card info: card_type=0x%02x, port_mode=0x%04x, port_speed=0x%08x\n",
6269 carrier_info
.card_type
,
6270 carrier_info
.port_mode
,
6271 carrier_info
.port_speed
);
6273 /* Update attributes for which we've obtained more authoritative */
6274 /* information, leave the rest the way they where filled above. */
6275 switch (carrier_info
.card_type
) {
6276 case CARD_INFO_TYPE_1G_COPPER_A
:
6277 case CARD_INFO_TYPE_1G_COPPER_B
:
6278 cmd
->base
.port
= PORT_TP
;
6279 qeth_set_cmd_adv_sup(cmd
, SPEED_1000
, cmd
->base
.port
);
6281 case CARD_INFO_TYPE_1G_FIBRE_A
:
6282 case CARD_INFO_TYPE_1G_FIBRE_B
:
6283 cmd
->base
.port
= PORT_FIBRE
;
6284 qeth_set_cmd_adv_sup(cmd
, SPEED_1000
, cmd
->base
.port
);
6286 case CARD_INFO_TYPE_10G_FIBRE_A
:
6287 case CARD_INFO_TYPE_10G_FIBRE_B
:
6288 cmd
->base
.port
= PORT_FIBRE
;
6289 qeth_set_cmd_adv_sup(cmd
, SPEED_10000
, cmd
->base
.port
);
6293 switch (carrier_info
.port_mode
) {
6294 case CARD_INFO_PORTM_FULLDUPLEX
:
6295 cmd
->base
.duplex
= DUPLEX_FULL
;
6297 case CARD_INFO_PORTM_HALFDUPLEX
:
6298 cmd
->base
.duplex
= DUPLEX_HALF
;
6302 switch (carrier_info
.port_speed
) {
6303 case CARD_INFO_PORTS_10M
:
6304 cmd
->base
.speed
= SPEED_10
;
6306 case CARD_INFO_PORTS_100M
:
6307 cmd
->base
.speed
= SPEED_100
;
6309 case CARD_INFO_PORTS_1G
:
6310 cmd
->base
.speed
= SPEED_1000
;
6312 case CARD_INFO_PORTS_10G
:
6313 cmd
->base
.speed
= SPEED_10000
;
6319 EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_link_ksettings
);
6321 /* Callback to handle checksum offload command reply from OSA card.
6322 * Verify that required features have been enabled on the card.
6323 * Return error in hdr->return_code as this value is checked by caller.
6325 * Always returns zero to indicate no further messages from the OSA card.
6327 static int qeth_ipa_checksum_run_cmd_cb(struct qeth_card
*card
,
6328 struct qeth_reply
*reply
,
6331 struct qeth_ipa_cmd
*cmd
= (struct qeth_ipa_cmd
*) data
;
6332 struct qeth_checksum_cmd
*chksum_cb
=
6333 (struct qeth_checksum_cmd
*)reply
->param
;
6335 QETH_CARD_TEXT(card
, 4, "chkdoccb");
6336 if (qeth_setassparms_inspect_rc(cmd
))
6339 memset(chksum_cb
, 0, sizeof(*chksum_cb
));
6340 if (cmd
->data
.setassparms
.hdr
.command_code
== IPA_CMD_ASS_START
) {
6341 chksum_cb
->supported
=
6342 cmd
->data
.setassparms
.data
.chksum
.supported
;
6343 QETH_CARD_TEXT_(card
, 3, "strt:%x", chksum_cb
->supported
);
6345 if (cmd
->data
.setassparms
.hdr
.command_code
== IPA_CMD_ASS_ENABLE
) {
6346 chksum_cb
->supported
=
6347 cmd
->data
.setassparms
.data
.chksum
.supported
;
6348 chksum_cb
->enabled
=
6349 cmd
->data
.setassparms
.data
.chksum
.enabled
;
6350 QETH_CARD_TEXT_(card
, 3, "supp:%x", chksum_cb
->supported
);
6351 QETH_CARD_TEXT_(card
, 3, "enab:%x", chksum_cb
->enabled
);
6356 /* Send command to OSA card and check results. */
6357 static int qeth_ipa_checksum_run_cmd(struct qeth_card
*card
,
6358 enum qeth_ipa_funcs ipa_func
,
6359 __u16 cmd_code
, long data
,
6360 struct qeth_checksum_cmd
*chksum_cb
,
6361 enum qeth_prot_versions prot
)
6363 struct qeth_cmd_buffer
*iob
;
6366 QETH_CARD_TEXT(card
, 4, "chkdocmd");
6367 iob
= qeth_get_setassparms_cmd(card
, ipa_func
, cmd_code
,
6368 sizeof(__u32
), prot
);
6370 rc
= qeth_send_setassparms(card
, iob
, sizeof(__u32
), data
,
6371 qeth_ipa_checksum_run_cmd_cb
,
6376 static int qeth_send_checksum_on(struct qeth_card
*card
, int cstype
,
6377 enum qeth_prot_versions prot
)
6379 u32 required_features
= QETH_IPA_CHECKSUM_UDP
| QETH_IPA_CHECKSUM_TCP
;
6380 struct qeth_checksum_cmd chksum_cb
;
6383 if (prot
== QETH_PROT_IPV4
)
6384 required_features
|= QETH_IPA_CHECKSUM_IP_HDR
;
6385 rc
= qeth_ipa_checksum_run_cmd(card
, cstype
, IPA_CMD_ASS_START
, 0,
6388 if ((required_features
& chksum_cb
.supported
) !=
6391 else if (!(QETH_IPA_CHECKSUM_LP2LP
& chksum_cb
.supported
) &&
6392 cstype
== IPA_INBOUND_CHECKSUM
)
6393 dev_warn(&card
->gdev
->dev
,
6394 "Hardware checksumming is performed only if %s and its peer use different OSA Express 3 ports\n",
6395 QETH_CARD_IFNAME(card
));
6398 qeth_send_simple_setassparms_prot(card
, cstype
,
6399 IPA_CMD_ASS_STOP
, 0, prot
);
6400 dev_warn(&card
->gdev
->dev
,
6401 "Starting HW IPv%d checksumming for %s failed, using SW checksumming\n",
6402 prot
, QETH_CARD_IFNAME(card
));
6405 rc
= qeth_ipa_checksum_run_cmd(card
, cstype
, IPA_CMD_ASS_ENABLE
,
6406 chksum_cb
.supported
, &chksum_cb
,
6409 if ((required_features
& chksum_cb
.enabled
) !=
6414 qeth_send_simple_setassparms_prot(card
, cstype
,
6415 IPA_CMD_ASS_STOP
, 0, prot
);
6416 dev_warn(&card
->gdev
->dev
,
6417 "Enabling HW IPv%d checksumming for %s failed, using SW checksumming\n",
6418 prot
, QETH_CARD_IFNAME(card
));
6422 dev_info(&card
->gdev
->dev
, "HW Checksumming (%sbound IPv%d) enabled\n",
6423 cstype
== IPA_INBOUND_CHECKSUM
? "in" : "out", prot
);
6427 static int qeth_set_ipa_csum(struct qeth_card
*card
, bool on
, int cstype
,
6428 enum qeth_prot_versions prot
)
6430 int rc
= (on
) ? qeth_send_checksum_on(card
, cstype
, prot
)
6431 : qeth_send_simple_setassparms_prot(card
, cstype
,
6432 IPA_CMD_ASS_STOP
, 0,
6434 return rc
? -EIO
: 0;
6437 static int qeth_set_ipa_tso(struct qeth_card
*card
, int on
)
6441 QETH_CARD_TEXT(card
, 3, "sttso");
6444 rc
= qeth_send_simple_setassparms(card
, IPA_OUTBOUND_TSO
,
6445 IPA_CMD_ASS_START
, 0);
6447 dev_warn(&card
->gdev
->dev
,
6448 "Starting outbound TCP segmentation offload for %s failed\n",
6449 QETH_CARD_IFNAME(card
));
6452 dev_info(&card
->gdev
->dev
, "Outbound TSO enabled\n");
6454 rc
= qeth_send_simple_setassparms(card
, IPA_OUTBOUND_TSO
,
6455 IPA_CMD_ASS_STOP
, 0);
6460 static int qeth_set_ipa_rx_csum(struct qeth_card
*card
, bool on
)
6462 int rc_ipv4
= (on
) ? -EOPNOTSUPP
: 0;
6465 if (qeth_is_supported(card
, IPA_INBOUND_CHECKSUM
))
6466 rc_ipv4
= qeth_set_ipa_csum(card
, on
, IPA_INBOUND_CHECKSUM
,
6468 if (!qeth_is_supported6(card
, IPA_INBOUND_CHECKSUM_V6
))
6469 /* no/one Offload Assist available, so the rc is trivial */
6472 rc_ipv6
= qeth_set_ipa_csum(card
, on
, IPA_INBOUND_CHECKSUM
,
6476 /* enable: success if any Assist is active */
6477 return (rc_ipv6
) ? rc_ipv4
: 0;
6479 /* disable: failure if any Assist is still active */
6480 return (rc_ipv6
) ? rc_ipv6
: rc_ipv4
;
6483 #define QETH_HW_FEATURES (NETIF_F_RXCSUM | NETIF_F_IP_CSUM | NETIF_F_TSO | \
6486 * qeth_enable_hw_features() - (Re-)Enable HW functions for device features
6487 * @dev: a net_device
6489 void qeth_enable_hw_features(struct net_device
*dev
)
6491 struct qeth_card
*card
= dev
->ml_priv
;
6492 netdev_features_t features
;
6495 features
= dev
->features
;
6496 /* force-off any feature that needs an IPA sequence.
6497 * netdev_update_features() will restart them.
6499 dev
->features
&= ~QETH_HW_FEATURES
;
6500 netdev_update_features(dev
);
6501 if (features
!= dev
->features
)
6502 dev_warn(&card
->gdev
->dev
,
6503 "Device recovery failed to restore all offload features\n");
6506 EXPORT_SYMBOL_GPL(qeth_enable_hw_features
);
6508 int qeth_set_features(struct net_device
*dev
, netdev_features_t features
)
6510 struct qeth_card
*card
= dev
->ml_priv
;
6511 netdev_features_t changed
= dev
->features
^ features
;
6514 QETH_DBF_TEXT(SETUP
, 2, "setfeat");
6515 QETH_DBF_HEX(SETUP
, 2, &features
, sizeof(features
));
6517 if ((changed
& NETIF_F_IP_CSUM
)) {
6518 rc
= qeth_set_ipa_csum(card
, features
& NETIF_F_IP_CSUM
,
6519 IPA_OUTBOUND_CHECKSUM
, QETH_PROT_IPV4
);
6521 changed
^= NETIF_F_IP_CSUM
;
6523 if (changed
& NETIF_F_IPV6_CSUM
) {
6524 rc
= qeth_set_ipa_csum(card
, features
& NETIF_F_IPV6_CSUM
,
6525 IPA_OUTBOUND_CHECKSUM
, QETH_PROT_IPV6
);
6527 changed
^= NETIF_F_IPV6_CSUM
;
6529 if (changed
& NETIF_F_RXCSUM
) {
6530 rc
= qeth_set_ipa_rx_csum(card
, features
& NETIF_F_RXCSUM
);
6532 changed
^= NETIF_F_RXCSUM
;
6534 if ((changed
& NETIF_F_TSO
)) {
6535 rc
= qeth_set_ipa_tso(card
, features
& NETIF_F_TSO
? 1 : 0);
6537 changed
^= NETIF_F_TSO
;
6540 /* everything changed successfully? */
6541 if ((dev
->features
^ features
) == changed
)
6543 /* something went wrong. save changed features and return error */
6544 dev
->features
^= changed
;
6547 EXPORT_SYMBOL_GPL(qeth_set_features
);
6549 netdev_features_t
qeth_fix_features(struct net_device
*dev
,
6550 netdev_features_t features
)
6552 struct qeth_card
*card
= dev
->ml_priv
;
6554 QETH_DBF_TEXT(SETUP
, 2, "fixfeat");
6555 if (!qeth_is_supported(card
, IPA_OUTBOUND_CHECKSUM
))
6556 features
&= ~NETIF_F_IP_CSUM
;
6557 if (!qeth_is_supported6(card
, IPA_OUTBOUND_CHECKSUM_V6
))
6558 features
&= ~NETIF_F_IPV6_CSUM
;
6559 if (!qeth_is_supported(card
, IPA_INBOUND_CHECKSUM
) &&
6560 !qeth_is_supported6(card
, IPA_INBOUND_CHECKSUM_V6
))
6561 features
&= ~NETIF_F_RXCSUM
;
6562 if (!qeth_is_supported(card
, IPA_OUTBOUND_TSO
))
6563 features
&= ~NETIF_F_TSO
;
6564 /* if the card isn't up, remove features that require hw changes */
6565 if (card
->state
== CARD_STATE_DOWN
||
6566 card
->state
== CARD_STATE_RECOVER
)
6567 features
&= ~QETH_HW_FEATURES
;
6568 QETH_DBF_HEX(SETUP
, 2, &features
, sizeof(features
));
6571 EXPORT_SYMBOL_GPL(qeth_fix_features
);
6573 netdev_features_t
qeth_features_check(struct sk_buff
*skb
,
6574 struct net_device
*dev
,
6575 netdev_features_t features
)
6577 /* GSO segmentation builds skbs with
6578 * a (small) linear part for the headers, and
6579 * page frags for the data.
6580 * Compared to a linear skb, the header-only part consumes an
6581 * additional buffer element. This reduces buffer utilization, and
6582 * hurts throughput. So compress small segments into one element.
6584 if (netif_needs_gso(skb
, features
)) {
6585 /* match skb_segment(): */
6586 unsigned int doffset
= skb
->data
- skb_mac_header(skb
);
6587 unsigned int hsize
= skb_shinfo(skb
)->gso_size
;
6588 unsigned int hroom
= skb_headroom(skb
);
6590 /* linearize only if resulting skb allocations are order-0: */
6591 if (SKB_DATA_ALIGN(hroom
+ doffset
+ hsize
) <= SKB_MAX_HEAD(0))
6592 features
&= ~NETIF_F_SG
;
6595 return vlan_features_check(skb
, features
);
6597 EXPORT_SYMBOL_GPL(qeth_features_check
);
6599 static int __init
qeth_core_init(void)
6603 pr_info("loading core functions\n");
6604 INIT_LIST_HEAD(&qeth_core_card_list
.list
);
6605 INIT_LIST_HEAD(&qeth_dbf_list
);
6606 rwlock_init(&qeth_core_card_list
.rwlock
);
6607 mutex_init(&qeth_mod_mutex
);
6609 qeth_wq
= create_singlethread_workqueue("qeth_wq");
6615 rc
= qeth_register_dbf_views();
6618 qeth_core_root_dev
= root_device_register("qeth");
6619 rc
= PTR_ERR_OR_ZERO(qeth_core_root_dev
);
6622 qeth_core_header_cache
= kmem_cache_create("qeth_hdr",
6623 sizeof(struct qeth_hdr
) + ETH_HLEN
, 64, 0, NULL
);
6624 if (!qeth_core_header_cache
) {
6628 qeth_qdio_outbuf_cache
= kmem_cache_create("qeth_buf",
6629 sizeof(struct qeth_qdio_out_buffer
), 0, 0, NULL
);
6630 if (!qeth_qdio_outbuf_cache
) {
6634 rc
= ccw_driver_register(&qeth_ccw_driver
);
6637 rc
= ccwgroup_driver_register(&qeth_core_ccwgroup_driver
);
6644 ccw_driver_unregister(&qeth_ccw_driver
);
6646 kmem_cache_destroy(qeth_qdio_outbuf_cache
);
6648 kmem_cache_destroy(qeth_core_header_cache
);
6650 root_device_unregister(qeth_core_root_dev
);
6652 qeth_unregister_dbf_views();
6654 destroy_workqueue(qeth_wq
);
6656 pr_err("Initializing the qeth device driver failed\n");
6660 static void __exit
qeth_core_exit(void)
6662 qeth_clear_dbf_list();
6663 destroy_workqueue(qeth_wq
);
6664 ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver
);
6665 ccw_driver_unregister(&qeth_ccw_driver
);
6666 kmem_cache_destroy(qeth_qdio_outbuf_cache
);
6667 kmem_cache_destroy(qeth_core_header_cache
);
6668 root_device_unregister(qeth_core_root_dev
);
6669 qeth_unregister_dbf_views();
6670 pr_info("core functions removed\n");
6673 module_init(qeth_core_init
);
6674 module_exit(qeth_core_exit
);
6675 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
6676 MODULE_DESCRIPTION("qeth core functions");
6677 MODULE_LICENSE("GPL");