2 * Copyright IBM Corp. 2007, 2009
3 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
4 * Frank Pavlic <fpavlic@de.ibm.com>,
5 * Thomas Spatzier <tspat@de.ibm.com>,
6 * Frank Blaschka <frank.blaschka@de.ibm.com>
9 #define KMSG_COMPONENT "qeth"
10 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
12 #include <linux/module.h>
13 #include <linux/moduleparam.h>
14 #include <linux/string.h>
15 #include <linux/errno.h>
16 #include <linux/kernel.h>
18 #include <linux/tcp.h>
19 #include <linux/mii.h>
20 #include <linux/kthread.h>
21 #include <linux/slab.h>
22 #include <linux/if_vlan.h>
23 #include <linux/netdevice.h>
24 #include <linux/netdev_features.h>
25 #include <linux/skbuff.h>
27 #include <net/iucv/af_iucv.h>
28 #include <net/dsfield.h>
30 #include <asm/ebcdic.h>
31 #include <asm/chpid.h>
33 #include <asm/sysinfo.h>
34 #include <asm/compat.h>
37 #include <asm/ccwdev.h>
39 #include "qeth_core.h"
41 struct qeth_dbf_info qeth_dbf
[QETH_DBF_INFOS
] = {
42 /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */
44 [QETH_DBF_SETUP
] = {"qeth_setup",
45 8, 1, 8, 5, &debug_hex_ascii_view
, NULL
},
46 [QETH_DBF_MSG
] = {"qeth_msg", 8, 1, 11 * sizeof(long), 3,
47 &debug_sprintf_view
, NULL
},
48 [QETH_DBF_CTRL
] = {"qeth_control",
49 8, 1, QETH_DBF_CTRL_LEN
, 5, &debug_hex_ascii_view
, NULL
},
51 EXPORT_SYMBOL_GPL(qeth_dbf
);
53 struct qeth_card_list_struct qeth_core_card_list
;
54 EXPORT_SYMBOL_GPL(qeth_core_card_list
);
55 struct kmem_cache
*qeth_core_header_cache
;
56 EXPORT_SYMBOL_GPL(qeth_core_header_cache
);
57 static struct kmem_cache
*qeth_qdio_outbuf_cache
;
59 static struct device
*qeth_core_root_dev
;
60 static struct lock_class_key qdio_out_skb_queue_key
;
61 static struct mutex qeth_mod_mutex
;
63 static void qeth_send_control_data_cb(struct qeth_channel
*,
64 struct qeth_cmd_buffer
*);
65 static struct qeth_cmd_buffer
*qeth_get_buffer(struct qeth_channel
*);
66 static void qeth_setup_ccw(struct qeth_channel
*, unsigned char *, __u32
);
67 static void qeth_free_buffer_pool(struct qeth_card
*);
68 static int qeth_qdio_establish(struct qeth_card
*);
69 static void qeth_free_qdio_buffers(struct qeth_card
*);
70 static void qeth_notify_skbs(struct qeth_qdio_out_q
*queue
,
71 struct qeth_qdio_out_buffer
*buf
,
72 enum iucv_tx_notify notification
);
73 static void qeth_release_skbs(struct qeth_qdio_out_buffer
*buf
);
74 static void qeth_clear_output_buffer(struct qeth_qdio_out_q
*queue
,
75 struct qeth_qdio_out_buffer
*buf
,
76 enum qeth_qdio_buffer_states newbufstate
);
77 static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q
*, int);
79 struct workqueue_struct
*qeth_wq
;
80 EXPORT_SYMBOL_GPL(qeth_wq
);
82 int qeth_card_hw_is_reachable(struct qeth_card
*card
)
84 return (card
->state
== CARD_STATE_SOFTSETUP
) ||
85 (card
->state
== CARD_STATE_UP
);
87 EXPORT_SYMBOL_GPL(qeth_card_hw_is_reachable
);
89 static void qeth_close_dev_handler(struct work_struct
*work
)
91 struct qeth_card
*card
;
93 card
= container_of(work
, struct qeth_card
, close_dev_work
);
94 QETH_CARD_TEXT(card
, 2, "cldevhdl");
98 ccwgroup_set_offline(card
->gdev
);
101 void qeth_close_dev(struct qeth_card
*card
)
103 QETH_CARD_TEXT(card
, 2, "cldevsubm");
104 queue_work(qeth_wq
, &card
->close_dev_work
);
106 EXPORT_SYMBOL_GPL(qeth_close_dev
);
108 static const char *qeth_get_cardname(struct qeth_card
*card
)
110 if (card
->info
.guestlan
) {
111 switch (card
->info
.type
) {
112 case QETH_CARD_TYPE_OSD
:
113 return " Virtual NIC QDIO";
114 case QETH_CARD_TYPE_IQD
:
115 return " Virtual NIC Hiper";
116 case QETH_CARD_TYPE_OSM
:
117 return " Virtual NIC QDIO - OSM";
118 case QETH_CARD_TYPE_OSX
:
119 return " Virtual NIC QDIO - OSX";
124 switch (card
->info
.type
) {
125 case QETH_CARD_TYPE_OSD
:
126 return " OSD Express";
127 case QETH_CARD_TYPE_IQD
:
128 return " HiperSockets";
129 case QETH_CARD_TYPE_OSN
:
131 case QETH_CARD_TYPE_OSM
:
133 case QETH_CARD_TYPE_OSX
:
142 /* max length to be returned: 14 */
143 const char *qeth_get_cardname_short(struct qeth_card
*card
)
145 if (card
->info
.guestlan
) {
146 switch (card
->info
.type
) {
147 case QETH_CARD_TYPE_OSD
:
148 return "Virt.NIC QDIO";
149 case QETH_CARD_TYPE_IQD
:
150 return "Virt.NIC Hiper";
151 case QETH_CARD_TYPE_OSM
:
152 return "Virt.NIC OSM";
153 case QETH_CARD_TYPE_OSX
:
154 return "Virt.NIC OSX";
159 switch (card
->info
.type
) {
160 case QETH_CARD_TYPE_OSD
:
161 switch (card
->info
.link_type
) {
162 case QETH_LINK_TYPE_FAST_ETH
:
164 case QETH_LINK_TYPE_HSTR
:
166 case QETH_LINK_TYPE_GBIT_ETH
:
168 case QETH_LINK_TYPE_10GBIT_ETH
:
170 case QETH_LINK_TYPE_LANE_ETH100
:
171 return "OSD_FE_LANE";
172 case QETH_LINK_TYPE_LANE_TR
:
173 return "OSD_TR_LANE";
174 case QETH_LINK_TYPE_LANE_ETH1000
:
175 return "OSD_GbE_LANE";
176 case QETH_LINK_TYPE_LANE
:
177 return "OSD_ATM_LANE";
179 return "OSD_Express";
181 case QETH_CARD_TYPE_IQD
:
182 return "HiperSockets";
183 case QETH_CARD_TYPE_OSN
:
185 case QETH_CARD_TYPE_OSM
:
187 case QETH_CARD_TYPE_OSX
:
196 void qeth_set_recovery_task(struct qeth_card
*card
)
198 card
->recovery_task
= current
;
200 EXPORT_SYMBOL_GPL(qeth_set_recovery_task
);
202 void qeth_clear_recovery_task(struct qeth_card
*card
)
204 card
->recovery_task
= NULL
;
206 EXPORT_SYMBOL_GPL(qeth_clear_recovery_task
);
208 static bool qeth_is_recovery_task(const struct qeth_card
*card
)
210 return card
->recovery_task
== current
;
213 void qeth_set_allowed_threads(struct qeth_card
*card
, unsigned long threads
,
214 int clear_start_mask
)
218 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
219 card
->thread_allowed_mask
= threads
;
220 if (clear_start_mask
)
221 card
->thread_start_mask
&= threads
;
222 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
223 wake_up(&card
->wait_q
);
225 EXPORT_SYMBOL_GPL(qeth_set_allowed_threads
);
227 int qeth_threads_running(struct qeth_card
*card
, unsigned long threads
)
232 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
233 rc
= (card
->thread_running_mask
& threads
);
234 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
237 EXPORT_SYMBOL_GPL(qeth_threads_running
);
239 int qeth_wait_for_threads(struct qeth_card
*card
, unsigned long threads
)
241 if (qeth_is_recovery_task(card
))
243 return wait_event_interruptible(card
->wait_q
,
244 qeth_threads_running(card
, threads
) == 0);
246 EXPORT_SYMBOL_GPL(qeth_wait_for_threads
);
248 void qeth_clear_working_pool_list(struct qeth_card
*card
)
250 struct qeth_buffer_pool_entry
*pool_entry
, *tmp
;
252 QETH_CARD_TEXT(card
, 5, "clwrklst");
253 list_for_each_entry_safe(pool_entry
, tmp
,
254 &card
->qdio
.in_buf_pool
.entry_list
, list
){
255 list_del(&pool_entry
->list
);
258 EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list
);
260 static int qeth_alloc_buffer_pool(struct qeth_card
*card
)
262 struct qeth_buffer_pool_entry
*pool_entry
;
266 QETH_CARD_TEXT(card
, 5, "alocpool");
267 for (i
= 0; i
< card
->qdio
.init_pool
.buf_count
; ++i
) {
268 pool_entry
= kzalloc(sizeof(*pool_entry
), GFP_KERNEL
);
270 qeth_free_buffer_pool(card
);
273 for (j
= 0; j
< QETH_MAX_BUFFER_ELEMENTS(card
); ++j
) {
274 ptr
= (void *) __get_free_page(GFP_KERNEL
);
277 free_page((unsigned long)
278 pool_entry
->elements
[--j
]);
280 qeth_free_buffer_pool(card
);
283 pool_entry
->elements
[j
] = ptr
;
285 list_add(&pool_entry
->init_list
,
286 &card
->qdio
.init_pool
.entry_list
);
291 int qeth_realloc_buffer_pool(struct qeth_card
*card
, int bufcnt
)
293 QETH_CARD_TEXT(card
, 2, "realcbp");
295 if ((card
->state
!= CARD_STATE_DOWN
) &&
296 (card
->state
!= CARD_STATE_RECOVER
))
299 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
300 qeth_clear_working_pool_list(card
);
301 qeth_free_buffer_pool(card
);
302 card
->qdio
.in_buf_pool
.buf_count
= bufcnt
;
303 card
->qdio
.init_pool
.buf_count
= bufcnt
;
304 return qeth_alloc_buffer_pool(card
);
306 EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool
);
308 static void qeth_free_qdio_queue(struct qeth_qdio_q
*q
)
313 qdio_free_buffers(q
->qdio_bufs
, QDIO_MAX_BUFFERS_PER_Q
);
317 static struct qeth_qdio_q
*qeth_alloc_qdio_queue(void)
319 struct qeth_qdio_q
*q
= kzalloc(sizeof(*q
), GFP_KERNEL
);
325 if (qdio_alloc_buffers(q
->qdio_bufs
, QDIO_MAX_BUFFERS_PER_Q
)) {
330 for (i
= 0; i
< QDIO_MAX_BUFFERS_PER_Q
; ++i
)
331 q
->bufs
[i
].buffer
= q
->qdio_bufs
[i
];
333 QETH_DBF_HEX(SETUP
, 2, &q
, sizeof(void *));
337 static int qeth_cq_init(struct qeth_card
*card
)
341 if (card
->options
.cq
== QETH_CQ_ENABLED
) {
342 QETH_DBF_TEXT(SETUP
, 2, "cqinit");
343 qdio_reset_buffers(card
->qdio
.c_q
->qdio_bufs
,
344 QDIO_MAX_BUFFERS_PER_Q
);
345 card
->qdio
.c_q
->next_buf_to_init
= 127;
346 rc
= do_QDIO(CARD_DDEV(card
), QDIO_FLAG_SYNC_INPUT
,
347 card
->qdio
.no_in_queues
- 1, 0,
350 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
359 static int qeth_alloc_cq(struct qeth_card
*card
)
363 if (card
->options
.cq
== QETH_CQ_ENABLED
) {
365 struct qdio_outbuf_state
*outbuf_states
;
367 QETH_DBF_TEXT(SETUP
, 2, "cqon");
368 card
->qdio
.c_q
= qeth_alloc_qdio_queue();
369 if (!card
->qdio
.c_q
) {
373 card
->qdio
.no_in_queues
= 2;
374 card
->qdio
.out_bufstates
=
375 kzalloc(card
->qdio
.no_out_queues
*
376 QDIO_MAX_BUFFERS_PER_Q
*
377 sizeof(struct qdio_outbuf_state
), GFP_KERNEL
);
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 q
->bufs
[bidx
]->aob
= q
->bufstates
[bidx
].aob
;
477 qeth_init_qdio_out_buf(q
, bidx
);
478 QETH_CARD_TEXT(q
->card
, 2, "clprecov");
483 static void qeth_qdio_handle_aob(struct qeth_card
*card
,
484 unsigned long phys_aob_addr
)
487 struct qeth_qdio_out_buffer
*buffer
;
488 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
);
513 qeth_clear_output_buffer(buffer
->q
, buffer
,
514 QETH_QDIO_BUF_HANDLED_DELAYED
);
516 /* from here on: do not touch buffer anymore */
517 qdio_release_aob(aob
);
520 static inline int qeth_is_cq(struct qeth_card
*card
, unsigned int queue
)
522 return card
->options
.cq
== QETH_CQ_ENABLED
&&
523 card
->qdio
.c_q
!= NULL
&&
525 queue
== card
->qdio
.no_in_queues
- 1;
529 static int qeth_issue_next_read(struct qeth_card
*card
)
532 struct qeth_cmd_buffer
*iob
;
534 QETH_CARD_TEXT(card
, 5, "issnxrd");
535 if (card
->read
.state
!= CH_STATE_UP
)
537 iob
= qeth_get_buffer(&card
->read
);
539 dev_warn(&card
->gdev
->dev
, "The qeth device driver "
540 "failed to recover an error on the device\n");
541 QETH_DBF_MESSAGE(2, "%s issue_next_read failed: no iob "
542 "available\n", dev_name(&card
->gdev
->dev
));
545 qeth_setup_ccw(&card
->read
, iob
->data
, QETH_BUFSIZE
);
546 QETH_CARD_TEXT(card
, 6, "noirqpnd");
547 rc
= ccw_device_start(card
->read
.ccwdev
, &card
->read
.ccw
,
550 QETH_DBF_MESSAGE(2, "%s error in starting next read ccw! "
551 "rc=%i\n", dev_name(&card
->gdev
->dev
), rc
);
552 atomic_set(&card
->read
.irq_pending
, 0);
553 card
->read_or_write_problem
= 1;
554 qeth_schedule_recovery(card
);
555 wake_up(&card
->wait_q
);
560 static struct qeth_reply
*qeth_alloc_reply(struct qeth_card
*card
)
562 struct qeth_reply
*reply
;
564 reply
= kzalloc(sizeof(struct qeth_reply
), GFP_ATOMIC
);
566 atomic_set(&reply
->refcnt
, 1);
567 atomic_set(&reply
->received
, 0);
573 static void qeth_get_reply(struct qeth_reply
*reply
)
575 WARN_ON(atomic_read(&reply
->refcnt
) <= 0);
576 atomic_inc(&reply
->refcnt
);
579 static void qeth_put_reply(struct qeth_reply
*reply
)
581 WARN_ON(atomic_read(&reply
->refcnt
) <= 0);
582 if (atomic_dec_and_test(&reply
->refcnt
))
586 static void qeth_issue_ipa_msg(struct qeth_ipa_cmd
*cmd
, int rc
,
587 struct qeth_card
*card
)
590 int com
= cmd
->hdr
.command
;
591 ipa_name
= qeth_get_ipa_cmd_name(com
);
593 QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s/%s returned "
595 ipa_name
, com
, dev_name(&card
->gdev
->dev
),
596 QETH_CARD_IFNAME(card
), rc
,
597 qeth_get_ipa_msg(rc
));
599 QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s/%s succeeded\n",
600 ipa_name
, com
, dev_name(&card
->gdev
->dev
),
601 QETH_CARD_IFNAME(card
));
604 static struct qeth_ipa_cmd
*qeth_check_ipa_data(struct qeth_card
*card
,
605 struct qeth_cmd_buffer
*iob
)
607 struct qeth_ipa_cmd
*cmd
= NULL
;
609 QETH_CARD_TEXT(card
, 5, "chkipad");
610 if (IS_IPA(iob
->data
)) {
611 cmd
= (struct qeth_ipa_cmd
*) PDU_ENCAPSULATION(iob
->data
);
612 if (IS_IPA_REPLY(cmd
)) {
613 if (cmd
->hdr
.command
!= IPA_CMD_SETCCID
&&
614 cmd
->hdr
.command
!= IPA_CMD_DELCCID
&&
615 cmd
->hdr
.command
!= IPA_CMD_MODCCID
&&
616 cmd
->hdr
.command
!= IPA_CMD_SET_DIAG_ASS
)
617 qeth_issue_ipa_msg(cmd
,
618 cmd
->hdr
.return_code
, card
);
621 switch (cmd
->hdr
.command
) {
622 case IPA_CMD_STOPLAN
:
623 if (cmd
->hdr
.return_code
==
624 IPA_RC_VEPA_TO_VEB_TRANSITION
) {
625 dev_err(&card
->gdev
->dev
,
626 "Interface %s is down because the "
627 "adjacent port is no longer in "
628 "reflective relay mode\n",
629 QETH_CARD_IFNAME(card
));
630 qeth_close_dev(card
);
632 dev_warn(&card
->gdev
->dev
,
633 "The link for interface %s on CHPID"
635 QETH_CARD_IFNAME(card
),
637 qeth_issue_ipa_msg(cmd
,
638 cmd
->hdr
.return_code
, card
);
640 card
->lan_online
= 0;
641 if (card
->dev
&& netif_carrier_ok(card
->dev
))
642 netif_carrier_off(card
->dev
);
644 case IPA_CMD_STARTLAN
:
645 dev_info(&card
->gdev
->dev
,
646 "The link for %s on CHPID 0x%X has"
648 QETH_CARD_IFNAME(card
),
650 netif_carrier_on(card
->dev
);
651 card
->lan_online
= 1;
652 if (card
->info
.hwtrap
)
653 card
->info
.hwtrap
= 2;
654 qeth_schedule_recovery(card
);
656 case IPA_CMD_SETBRIDGEPORT_IQD
:
657 case IPA_CMD_SETBRIDGEPORT_OSA
:
658 case IPA_CMD_ADDRESS_CHANGE_NOTIF
:
659 if (card
->discipline
->control_event_handler
664 case IPA_CMD_MODCCID
:
666 case IPA_CMD_REGISTER_LOCAL_ADDR
:
667 QETH_CARD_TEXT(card
, 3, "irla");
669 case IPA_CMD_UNREGISTER_LOCAL_ADDR
:
670 QETH_CARD_TEXT(card
, 3, "urla");
673 QETH_DBF_MESSAGE(2, "Received data is IPA "
674 "but not a reply!\n");
682 void qeth_clear_ipacmd_list(struct qeth_card
*card
)
684 struct qeth_reply
*reply
, *r
;
687 QETH_CARD_TEXT(card
, 4, "clipalst");
689 spin_lock_irqsave(&card
->lock
, flags
);
690 list_for_each_entry_safe(reply
, r
, &card
->cmd_waiter_list
, list
) {
691 qeth_get_reply(reply
);
693 atomic_inc(&reply
->received
);
694 list_del_init(&reply
->list
);
695 wake_up(&reply
->wait_q
);
696 qeth_put_reply(reply
);
698 spin_unlock_irqrestore(&card
->lock
, flags
);
699 atomic_set(&card
->write
.irq_pending
, 0);
701 EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list
);
703 static int qeth_check_idx_response(struct qeth_card
*card
,
704 unsigned char *buffer
)
709 QETH_DBF_HEX(CTRL
, 2, buffer
, QETH_DBF_CTRL_LEN
);
710 if ((buffer
[2] & 0xc0) == 0xc0) {
711 QETH_DBF_MESSAGE(2, "received an IDX TERMINATE "
712 "with cause code 0x%02x%s\n",
714 ((buffer
[4] == 0x22) ?
715 " -- try another portname" : ""));
716 QETH_CARD_TEXT(card
, 2, "ckidxres");
717 QETH_CARD_TEXT(card
, 2, " idxterm");
718 QETH_CARD_TEXT_(card
, 2, " rc%d", -EIO
);
719 if (buffer
[4] == 0xf6) {
720 dev_err(&card
->gdev
->dev
,
721 "The qeth device is not configured "
722 "for the OSI layer required by z/VM\n");
730 static struct qeth_card
*CARD_FROM_CDEV(struct ccw_device
*cdev
)
732 struct qeth_card
*card
= dev_get_drvdata(&((struct ccwgroup_device
*)
733 dev_get_drvdata(&cdev
->dev
))->dev
);
737 static void qeth_setup_ccw(struct qeth_channel
*channel
, unsigned char *iob
,
740 struct qeth_card
*card
;
742 card
= CARD_FROM_CDEV(channel
->ccwdev
);
743 QETH_CARD_TEXT(card
, 4, "setupccw");
744 if (channel
== &card
->read
)
745 memcpy(&channel
->ccw
, READ_CCW
, sizeof(struct ccw1
));
747 memcpy(&channel
->ccw
, WRITE_CCW
, sizeof(struct ccw1
));
748 channel
->ccw
.count
= len
;
749 channel
->ccw
.cda
= (__u32
) __pa(iob
);
752 static struct qeth_cmd_buffer
*__qeth_get_buffer(struct qeth_channel
*channel
)
756 QETH_CARD_TEXT(CARD_FROM_CDEV(channel
->ccwdev
), 6, "getbuff");
757 index
= channel
->io_buf_no
;
759 if (channel
->iob
[index
].state
== BUF_STATE_FREE
) {
760 channel
->iob
[index
].state
= BUF_STATE_LOCKED
;
761 channel
->io_buf_no
= (channel
->io_buf_no
+ 1) %
763 memset(channel
->iob
[index
].data
, 0, QETH_BUFSIZE
);
764 return channel
->iob
+ index
;
766 index
= (index
+ 1) % QETH_CMD_BUFFER_NO
;
767 } while (index
!= channel
->io_buf_no
);
772 void qeth_release_buffer(struct qeth_channel
*channel
,
773 struct qeth_cmd_buffer
*iob
)
777 QETH_CARD_TEXT(CARD_FROM_CDEV(channel
->ccwdev
), 6, "relbuff");
778 spin_lock_irqsave(&channel
->iob_lock
, flags
);
779 memset(iob
->data
, 0, QETH_BUFSIZE
);
780 iob
->state
= BUF_STATE_FREE
;
781 iob
->callback
= qeth_send_control_data_cb
;
783 spin_unlock_irqrestore(&channel
->iob_lock
, flags
);
784 wake_up(&channel
->wait_q
);
786 EXPORT_SYMBOL_GPL(qeth_release_buffer
);
788 static struct qeth_cmd_buffer
*qeth_get_buffer(struct qeth_channel
*channel
)
790 struct qeth_cmd_buffer
*buffer
= NULL
;
793 spin_lock_irqsave(&channel
->iob_lock
, flags
);
794 buffer
= __qeth_get_buffer(channel
);
795 spin_unlock_irqrestore(&channel
->iob_lock
, flags
);
799 struct qeth_cmd_buffer
*qeth_wait_for_buffer(struct qeth_channel
*channel
)
801 struct qeth_cmd_buffer
*buffer
;
802 wait_event(channel
->wait_q
,
803 ((buffer
= qeth_get_buffer(channel
)) != NULL
));
806 EXPORT_SYMBOL_GPL(qeth_wait_for_buffer
);
808 void qeth_clear_cmd_buffers(struct qeth_channel
*channel
)
812 for (cnt
= 0; cnt
< QETH_CMD_BUFFER_NO
; cnt
++)
813 qeth_release_buffer(channel
, &channel
->iob
[cnt
]);
815 channel
->io_buf_no
= 0;
817 EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers
);
819 static void qeth_send_control_data_cb(struct qeth_channel
*channel
,
820 struct qeth_cmd_buffer
*iob
)
822 struct qeth_card
*card
;
823 struct qeth_reply
*reply
, *r
;
824 struct qeth_ipa_cmd
*cmd
;
829 card
= CARD_FROM_CDEV(channel
->ccwdev
);
830 QETH_CARD_TEXT(card
, 4, "sndctlcb");
831 rc
= qeth_check_idx_response(card
, iob
->data
);
836 qeth_clear_ipacmd_list(card
);
837 qeth_schedule_recovery(card
);
843 cmd
= qeth_check_ipa_data(card
, iob
);
844 if ((cmd
== NULL
) && (card
->state
!= CARD_STATE_DOWN
))
846 /*in case of OSN : check if cmd is set */
847 if (card
->info
.type
== QETH_CARD_TYPE_OSN
&&
849 cmd
->hdr
.command
!= IPA_CMD_STARTLAN
&&
850 card
->osn_info
.assist_cb
!= NULL
) {
851 card
->osn_info
.assist_cb(card
->dev
, cmd
);
855 spin_lock_irqsave(&card
->lock
, flags
);
856 list_for_each_entry_safe(reply
, r
, &card
->cmd_waiter_list
, list
) {
857 if ((reply
->seqno
== QETH_IDX_COMMAND_SEQNO
) ||
858 ((cmd
) && (reply
->seqno
== cmd
->hdr
.seqno
))) {
859 qeth_get_reply(reply
);
860 list_del_init(&reply
->list
);
861 spin_unlock_irqrestore(&card
->lock
, flags
);
863 if (reply
->callback
!= NULL
) {
865 reply
->offset
= (__u16
)((char *)cmd
-
867 keep_reply
= reply
->callback(card
,
871 keep_reply
= reply
->callback(card
,
876 reply
->rc
= (u16
) cmd
->hdr
.return_code
;
880 spin_lock_irqsave(&card
->lock
, flags
);
881 list_add_tail(&reply
->list
,
882 &card
->cmd_waiter_list
);
883 spin_unlock_irqrestore(&card
->lock
, flags
);
885 atomic_inc(&reply
->received
);
886 wake_up(&reply
->wait_q
);
888 qeth_put_reply(reply
);
892 spin_unlock_irqrestore(&card
->lock
, flags
);
894 memcpy(&card
->seqno
.pdu_hdr_ack
,
895 QETH_PDU_HEADER_SEQ_NO(iob
->data
),
897 qeth_release_buffer(channel
, iob
);
900 static int qeth_setup_channel(struct qeth_channel
*channel
)
904 QETH_DBF_TEXT(SETUP
, 2, "setupch");
905 for (cnt
= 0; cnt
< QETH_CMD_BUFFER_NO
; cnt
++) {
906 channel
->iob
[cnt
].data
=
907 kzalloc(QETH_BUFSIZE
, GFP_DMA
|GFP_KERNEL
);
908 if (channel
->iob
[cnt
].data
== NULL
)
910 channel
->iob
[cnt
].state
= BUF_STATE_FREE
;
911 channel
->iob
[cnt
].channel
= channel
;
912 channel
->iob
[cnt
].callback
= qeth_send_control_data_cb
;
913 channel
->iob
[cnt
].rc
= 0;
915 if (cnt
< QETH_CMD_BUFFER_NO
) {
917 kfree(channel
->iob
[cnt
].data
);
921 channel
->io_buf_no
= 0;
922 atomic_set(&channel
->irq_pending
, 0);
923 spin_lock_init(&channel
->iob_lock
);
925 init_waitqueue_head(&channel
->wait_q
);
929 static int qeth_set_thread_start_bit(struct qeth_card
*card
,
930 unsigned long thread
)
934 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
935 if (!(card
->thread_allowed_mask
& thread
) ||
936 (card
->thread_start_mask
& thread
)) {
937 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
940 card
->thread_start_mask
|= thread
;
941 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
945 void qeth_clear_thread_start_bit(struct qeth_card
*card
, unsigned long thread
)
949 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
950 card
->thread_start_mask
&= ~thread
;
951 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
952 wake_up(&card
->wait_q
);
954 EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit
);
956 void qeth_clear_thread_running_bit(struct qeth_card
*card
, unsigned long thread
)
960 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
961 card
->thread_running_mask
&= ~thread
;
962 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
963 wake_up(&card
->wait_q
);
965 EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit
);
967 static int __qeth_do_run_thread(struct qeth_card
*card
, unsigned long thread
)
972 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
973 if (card
->thread_start_mask
& thread
) {
974 if ((card
->thread_allowed_mask
& thread
) &&
975 !(card
->thread_running_mask
& thread
)) {
977 card
->thread_start_mask
&= ~thread
;
978 card
->thread_running_mask
|= thread
;
982 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
986 int qeth_do_run_thread(struct qeth_card
*card
, unsigned long thread
)
990 wait_event(card
->wait_q
,
991 (rc
= __qeth_do_run_thread(card
, thread
)) >= 0);
994 EXPORT_SYMBOL_GPL(qeth_do_run_thread
);
996 void qeth_schedule_recovery(struct qeth_card
*card
)
998 QETH_CARD_TEXT(card
, 2, "startrec");
999 if (qeth_set_thread_start_bit(card
, QETH_RECOVER_THREAD
) == 0)
1000 schedule_work(&card
->kernel_thread_starter
);
1002 EXPORT_SYMBOL_GPL(qeth_schedule_recovery
);
1004 static int qeth_get_problem(struct ccw_device
*cdev
, struct irb
*irb
)
1008 struct qeth_card
*card
;
1010 sense
= (char *) irb
->ecw
;
1011 cstat
= irb
->scsw
.cmd
.cstat
;
1012 dstat
= irb
->scsw
.cmd
.dstat
;
1013 card
= CARD_FROM_CDEV(cdev
);
1015 if (cstat
& (SCHN_STAT_CHN_CTRL_CHK
| SCHN_STAT_INTF_CTRL_CHK
|
1016 SCHN_STAT_CHN_DATA_CHK
| SCHN_STAT_CHAIN_CHECK
|
1017 SCHN_STAT_PROT_CHECK
| SCHN_STAT_PROG_CHECK
)) {
1018 QETH_CARD_TEXT(card
, 2, "CGENCHK");
1019 dev_warn(&cdev
->dev
, "The qeth device driver "
1020 "failed to recover an error on the device\n");
1021 QETH_DBF_MESSAGE(2, "%s check on device dstat=x%x, cstat=x%x\n",
1022 dev_name(&cdev
->dev
), dstat
, cstat
);
1023 print_hex_dump(KERN_WARNING
, "qeth: irb ", DUMP_PREFIX_OFFSET
,
1028 if (dstat
& DEV_STAT_UNIT_CHECK
) {
1029 if (sense
[SENSE_RESETTING_EVENT_BYTE
] &
1030 SENSE_RESETTING_EVENT_FLAG
) {
1031 QETH_CARD_TEXT(card
, 2, "REVIND");
1034 if (sense
[SENSE_COMMAND_REJECT_BYTE
] &
1035 SENSE_COMMAND_REJECT_FLAG
) {
1036 QETH_CARD_TEXT(card
, 2, "CMDREJi");
1039 if ((sense
[2] == 0xaf) && (sense
[3] == 0xfe)) {
1040 QETH_CARD_TEXT(card
, 2, "AFFE");
1043 if ((!sense
[0]) && (!sense
[1]) && (!sense
[2]) && (!sense
[3])) {
1044 QETH_CARD_TEXT(card
, 2, "ZEROSEN");
1047 QETH_CARD_TEXT(card
, 2, "DGENCHK");
1053 static long __qeth_check_irb_error(struct ccw_device
*cdev
,
1054 unsigned long intparm
, struct irb
*irb
)
1056 struct qeth_card
*card
;
1058 card
= CARD_FROM_CDEV(cdev
);
1060 if (!card
|| !IS_ERR(irb
))
1063 switch (PTR_ERR(irb
)) {
1065 QETH_DBF_MESSAGE(2, "%s i/o-error on device\n",
1066 dev_name(&cdev
->dev
));
1067 QETH_CARD_TEXT(card
, 2, "ckirberr");
1068 QETH_CARD_TEXT_(card
, 2, " rc%d", -EIO
);
1071 dev_warn(&cdev
->dev
, "A hardware operation timed out"
1072 " on the device\n");
1073 QETH_CARD_TEXT(card
, 2, "ckirberr");
1074 QETH_CARD_TEXT_(card
, 2, " rc%d", -ETIMEDOUT
);
1075 if (intparm
== QETH_RCD_PARM
) {
1076 if (card
->data
.ccwdev
== cdev
) {
1077 card
->data
.state
= CH_STATE_DOWN
;
1078 wake_up(&card
->wait_q
);
1083 QETH_DBF_MESSAGE(2, "%s unknown error %ld on device\n",
1084 dev_name(&cdev
->dev
), PTR_ERR(irb
));
1085 QETH_CARD_TEXT(card
, 2, "ckirberr");
1086 QETH_CARD_TEXT(card
, 2, " rc???");
1088 return PTR_ERR(irb
);
1091 static void qeth_irq(struct ccw_device
*cdev
, unsigned long intparm
,
1096 struct qeth_cmd_buffer
*buffer
;
1097 struct qeth_channel
*channel
;
1098 struct qeth_card
*card
;
1099 struct qeth_cmd_buffer
*iob
;
1102 if (__qeth_check_irb_error(cdev
, intparm
, irb
))
1104 cstat
= irb
->scsw
.cmd
.cstat
;
1105 dstat
= irb
->scsw
.cmd
.dstat
;
1107 card
= CARD_FROM_CDEV(cdev
);
1111 QETH_CARD_TEXT(card
, 5, "irq");
1113 if (card
->read
.ccwdev
== cdev
) {
1114 channel
= &card
->read
;
1115 QETH_CARD_TEXT(card
, 5, "read");
1116 } else if (card
->write
.ccwdev
== cdev
) {
1117 channel
= &card
->write
;
1118 QETH_CARD_TEXT(card
, 5, "write");
1120 channel
= &card
->data
;
1121 QETH_CARD_TEXT(card
, 5, "data");
1123 atomic_set(&channel
->irq_pending
, 0);
1125 if (irb
->scsw
.cmd
.fctl
& (SCSW_FCTL_CLEAR_FUNC
))
1126 channel
->state
= CH_STATE_STOPPED
;
1128 if (irb
->scsw
.cmd
.fctl
& (SCSW_FCTL_HALT_FUNC
))
1129 channel
->state
= CH_STATE_HALTED
;
1131 /*let's wake up immediately on data channel*/
1132 if ((channel
== &card
->data
) && (intparm
!= 0) &&
1133 (intparm
!= QETH_RCD_PARM
))
1136 if (intparm
== QETH_CLEAR_CHANNEL_PARM
) {
1137 QETH_CARD_TEXT(card
, 6, "clrchpar");
1138 /* we don't have to handle this further */
1141 if (intparm
== QETH_HALT_CHANNEL_PARM
) {
1142 QETH_CARD_TEXT(card
, 6, "hltchpar");
1143 /* we don't have to handle this further */
1146 if ((dstat
& DEV_STAT_UNIT_EXCEP
) ||
1147 (dstat
& DEV_STAT_UNIT_CHECK
) ||
1149 if (irb
->esw
.esw0
.erw
.cons
) {
1150 dev_warn(&channel
->ccwdev
->dev
,
1151 "The qeth device driver failed to recover "
1152 "an error on the device\n");
1153 QETH_DBF_MESSAGE(2, "%s sense data available. cstat "
1154 "0x%X dstat 0x%X\n",
1155 dev_name(&channel
->ccwdev
->dev
), cstat
, dstat
);
1156 print_hex_dump(KERN_WARNING
, "qeth: irb ",
1157 DUMP_PREFIX_OFFSET
, 16, 1, irb
, 32, 1);
1158 print_hex_dump(KERN_WARNING
, "qeth: sense data ",
1159 DUMP_PREFIX_OFFSET
, 16, 1, irb
->ecw
, 32, 1);
1161 if (intparm
== QETH_RCD_PARM
) {
1162 channel
->state
= CH_STATE_DOWN
;
1165 rc
= qeth_get_problem(cdev
, irb
);
1167 qeth_clear_ipacmd_list(card
);
1168 qeth_schedule_recovery(card
);
1173 if (intparm
== QETH_RCD_PARM
) {
1174 channel
->state
= CH_STATE_RCD_DONE
;
1178 buffer
= (struct qeth_cmd_buffer
*) __va((addr_t
)intparm
);
1179 buffer
->state
= BUF_STATE_PROCESSED
;
1181 if (channel
== &card
->data
)
1183 if (channel
== &card
->read
&&
1184 channel
->state
== CH_STATE_UP
)
1185 qeth_issue_next_read(card
);
1188 index
= channel
->buf_no
;
1189 while (iob
[index
].state
== BUF_STATE_PROCESSED
) {
1190 if (iob
[index
].callback
!= NULL
)
1191 iob
[index
].callback(channel
, iob
+ index
);
1193 index
= (index
+ 1) % QETH_CMD_BUFFER_NO
;
1195 channel
->buf_no
= index
;
1197 wake_up(&card
->wait_q
);
1201 static void qeth_notify_skbs(struct qeth_qdio_out_q
*q
,
1202 struct qeth_qdio_out_buffer
*buf
,
1203 enum iucv_tx_notify notification
)
1205 struct sk_buff
*skb
;
1207 if (skb_queue_empty(&buf
->skb_list
))
1209 skb
= skb_peek(&buf
->skb_list
);
1211 QETH_CARD_TEXT_(q
->card
, 5, "skbn%d", notification
);
1212 QETH_CARD_TEXT_(q
->card
, 5, "%lx", (long) skb
);
1213 if (be16_to_cpu(skb
->protocol
) == ETH_P_AF_IUCV
) {
1215 struct iucv_sock
*iucv
= iucv_sk(skb
->sk
);
1216 iucv
->sk_txnotify(skb
, notification
);
1219 if (skb_queue_is_last(&buf
->skb_list
, skb
))
1222 skb
= skb_queue_next(&buf
->skb_list
, skb
);
1228 static void qeth_release_skbs(struct qeth_qdio_out_buffer
*buf
)
1230 struct sk_buff
*skb
;
1231 struct iucv_sock
*iucv
;
1232 int notify_general_error
= 0;
1234 if (atomic_read(&buf
->state
) == QETH_QDIO_BUF_PENDING
)
1235 notify_general_error
= 1;
1237 /* release may never happen from within CQ tasklet scope */
1238 WARN_ON_ONCE(atomic_read(&buf
->state
) == QETH_QDIO_BUF_IN_CQ
);
1240 skb
= skb_dequeue(&buf
->skb_list
);
1242 QETH_CARD_TEXT(buf
->q
->card
, 5, "skbr");
1243 QETH_CARD_TEXT_(buf
->q
->card
, 5, "%lx", (long) skb
);
1244 if (notify_general_error
&&
1245 be16_to_cpu(skb
->protocol
) == ETH_P_AF_IUCV
) {
1247 iucv
= iucv_sk(skb
->sk
);
1248 iucv
->sk_txnotify(skb
, TX_NOTIFY_GENERALERROR
);
1251 refcount_dec(&skb
->users
);
1252 dev_kfree_skb_any(skb
);
1253 skb
= skb_dequeue(&buf
->skb_list
);
1257 static void qeth_clear_output_buffer(struct qeth_qdio_out_q
*queue
,
1258 struct qeth_qdio_out_buffer
*buf
,
1259 enum qeth_qdio_buffer_states newbufstate
)
1263 /* is PCI flag set on buffer? */
1264 if (buf
->buffer
->element
[0].sflags
& SBAL_SFLAGS0_PCI_REQ
)
1265 atomic_dec(&queue
->set_pci_flags_count
);
1267 if (newbufstate
== QETH_QDIO_BUF_EMPTY
) {
1268 qeth_release_skbs(buf
);
1270 for (i
= 0; i
< QETH_MAX_BUFFER_ELEMENTS(queue
->card
); ++i
) {
1271 if (buf
->buffer
->element
[i
].addr
&& buf
->is_header
[i
])
1272 kmem_cache_free(qeth_core_header_cache
,
1273 buf
->buffer
->element
[i
].addr
);
1274 buf
->is_header
[i
] = 0;
1275 buf
->buffer
->element
[i
].length
= 0;
1276 buf
->buffer
->element
[i
].addr
= NULL
;
1277 buf
->buffer
->element
[i
].eflags
= 0;
1278 buf
->buffer
->element
[i
].sflags
= 0;
1280 buf
->buffer
->element
[15].eflags
= 0;
1281 buf
->buffer
->element
[15].sflags
= 0;
1282 buf
->next_element_to_fill
= 0;
1283 atomic_set(&buf
->state
, newbufstate
);
1286 static void qeth_clear_outq_buffers(struct qeth_qdio_out_q
*q
, int free
)
1290 for (j
= 0; j
< QDIO_MAX_BUFFERS_PER_Q
; ++j
) {
1293 qeth_cleanup_handled_pending(q
, j
, 1);
1294 qeth_clear_output_buffer(q
, q
->bufs
[j
], QETH_QDIO_BUF_EMPTY
);
1296 kmem_cache_free(qeth_qdio_outbuf_cache
, q
->bufs
[j
]);
1302 void qeth_clear_qdio_buffers(struct qeth_card
*card
)
1306 QETH_CARD_TEXT(card
, 2, "clearqdbf");
1307 /* clear outbound buffers to free skbs */
1308 for (i
= 0; i
< card
->qdio
.no_out_queues
; ++i
) {
1309 if (card
->qdio
.out_qs
[i
]) {
1310 qeth_clear_outq_buffers(card
->qdio
.out_qs
[i
], 0);
1314 EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers
);
1316 static void qeth_free_buffer_pool(struct qeth_card
*card
)
1318 struct qeth_buffer_pool_entry
*pool_entry
, *tmp
;
1320 list_for_each_entry_safe(pool_entry
, tmp
,
1321 &card
->qdio
.init_pool
.entry_list
, init_list
){
1322 for (i
= 0; i
< QETH_MAX_BUFFER_ELEMENTS(card
); ++i
)
1323 free_page((unsigned long)pool_entry
->elements
[i
]);
1324 list_del(&pool_entry
->init_list
);
1329 static void qeth_clean_channel(struct qeth_channel
*channel
)
1333 QETH_DBF_TEXT(SETUP
, 2, "freech");
1334 for (cnt
= 0; cnt
< QETH_CMD_BUFFER_NO
; cnt
++)
1335 kfree(channel
->iob
[cnt
].data
);
1338 static void qeth_set_single_write_queues(struct qeth_card
*card
)
1340 if ((atomic_read(&card
->qdio
.state
) != QETH_QDIO_UNINITIALIZED
) &&
1341 (card
->qdio
.no_out_queues
== 4))
1342 qeth_free_qdio_buffers(card
);
1344 card
->qdio
.no_out_queues
= 1;
1345 if (card
->qdio
.default_out_queue
!= 0)
1346 dev_info(&card
->gdev
->dev
, "Priority Queueing not supported\n");
1348 card
->qdio
.default_out_queue
= 0;
1351 static void qeth_set_multiple_write_queues(struct qeth_card
*card
)
1353 if ((atomic_read(&card
->qdio
.state
) != QETH_QDIO_UNINITIALIZED
) &&
1354 (card
->qdio
.no_out_queues
== 1)) {
1355 qeth_free_qdio_buffers(card
);
1356 card
->qdio
.default_out_queue
= 2;
1358 card
->qdio
.no_out_queues
= 4;
1361 static void qeth_update_from_chp_desc(struct qeth_card
*card
)
1363 struct ccw_device
*ccwdev
;
1364 struct channel_path_desc
*chp_dsc
;
1366 QETH_DBF_TEXT(SETUP
, 2, "chp_desc");
1368 ccwdev
= card
->data
.ccwdev
;
1369 chp_dsc
= ccw_device_get_chp_desc(ccwdev
, 0);
1373 card
->info
.func_level
= 0x4100 + chp_dsc
->desc
;
1374 if (card
->info
.type
== QETH_CARD_TYPE_IQD
)
1377 /* CHPP field bit 6 == 1 -> single queue */
1378 if ((chp_dsc
->chpp
& 0x02) == 0x02)
1379 qeth_set_single_write_queues(card
);
1381 qeth_set_multiple_write_queues(card
);
1384 QETH_DBF_TEXT_(SETUP
, 2, "nr:%x", card
->qdio
.no_out_queues
);
1385 QETH_DBF_TEXT_(SETUP
, 2, "lvl:%02x", card
->info
.func_level
);
1388 static void qeth_init_qdio_info(struct qeth_card
*card
)
1390 QETH_DBF_TEXT(SETUP
, 4, "intqdinf");
1391 atomic_set(&card
->qdio
.state
, QETH_QDIO_UNINITIALIZED
);
1393 card
->qdio
.no_in_queues
= 1;
1394 card
->qdio
.in_buf_size
= QETH_IN_BUF_SIZE_DEFAULT
;
1395 if (card
->info
.type
== QETH_CARD_TYPE_IQD
)
1396 card
->qdio
.init_pool
.buf_count
= QETH_IN_BUF_COUNT_HSDEFAULT
;
1398 card
->qdio
.init_pool
.buf_count
= QETH_IN_BUF_COUNT_DEFAULT
;
1399 card
->qdio
.in_buf_pool
.buf_count
= card
->qdio
.init_pool
.buf_count
;
1400 INIT_LIST_HEAD(&card
->qdio
.in_buf_pool
.entry_list
);
1401 INIT_LIST_HEAD(&card
->qdio
.init_pool
.entry_list
);
1404 static void qeth_set_intial_options(struct qeth_card
*card
)
1406 card
->options
.route4
.type
= NO_ROUTER
;
1407 card
->options
.route6
.type
= NO_ROUTER
;
1408 card
->options
.fake_broadcast
= 0;
1409 card
->options
.performance_stats
= 0;
1410 card
->options
.rx_sg_cb
= QETH_RX_SG_CB
;
1411 card
->options
.isolation
= ISOLATION_MODE_NONE
;
1412 card
->options
.cq
= QETH_CQ_DISABLED
;
1415 static int qeth_do_start_thread(struct qeth_card
*card
, unsigned long thread
)
1417 unsigned long flags
;
1420 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
1421 QETH_CARD_TEXT_(card
, 4, " %02x%02x%02x",
1422 (u8
) card
->thread_start_mask
,
1423 (u8
) card
->thread_allowed_mask
,
1424 (u8
) card
->thread_running_mask
);
1425 rc
= (card
->thread_start_mask
& thread
);
1426 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
1430 static void qeth_start_kernel_thread(struct work_struct
*work
)
1432 struct task_struct
*ts
;
1433 struct qeth_card
*card
= container_of(work
, struct qeth_card
,
1434 kernel_thread_starter
);
1435 QETH_CARD_TEXT(card
, 2, "strthrd");
1437 if (card
->read
.state
!= CH_STATE_UP
&&
1438 card
->write
.state
!= CH_STATE_UP
)
1440 if (qeth_do_start_thread(card
, QETH_RECOVER_THREAD
)) {
1441 ts
= kthread_run(card
->discipline
->recover
, (void *)card
,
1444 qeth_clear_thread_start_bit(card
, QETH_RECOVER_THREAD
);
1445 qeth_clear_thread_running_bit(card
,
1446 QETH_RECOVER_THREAD
);
1451 static void qeth_buffer_reclaim_work(struct work_struct
*);
1452 static int qeth_setup_card(struct qeth_card
*card
)
1455 QETH_DBF_TEXT(SETUP
, 2, "setupcrd");
1456 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
1458 card
->read
.state
= CH_STATE_DOWN
;
1459 card
->write
.state
= CH_STATE_DOWN
;
1460 card
->data
.state
= CH_STATE_DOWN
;
1461 card
->state
= CARD_STATE_DOWN
;
1462 card
->lan_online
= 0;
1463 card
->read_or_write_problem
= 0;
1465 spin_lock_init(&card
->vlanlock
);
1466 spin_lock_init(&card
->mclock
);
1467 spin_lock_init(&card
->lock
);
1468 spin_lock_init(&card
->ip_lock
);
1469 spin_lock_init(&card
->thread_mask_lock
);
1470 mutex_init(&card
->conf_mutex
);
1471 mutex_init(&card
->discipline_mutex
);
1472 card
->thread_start_mask
= 0;
1473 card
->thread_allowed_mask
= 0;
1474 card
->thread_running_mask
= 0;
1475 INIT_WORK(&card
->kernel_thread_starter
, qeth_start_kernel_thread
);
1476 INIT_LIST_HEAD(&card
->cmd_waiter_list
);
1477 init_waitqueue_head(&card
->wait_q
);
1478 /* initial options */
1479 qeth_set_intial_options(card
);
1480 /* IP address takeover */
1481 INIT_LIST_HEAD(&card
->ipato
.entries
);
1482 card
->ipato
.enabled
= 0;
1483 card
->ipato
.invert4
= 0;
1484 card
->ipato
.invert6
= 0;
1485 /* init QDIO stuff */
1486 qeth_init_qdio_info(card
);
1487 INIT_DELAYED_WORK(&card
->buffer_reclaim_work
, qeth_buffer_reclaim_work
);
1488 INIT_WORK(&card
->close_dev_work
, qeth_close_dev_handler
);
1492 static void qeth_core_sl_print(struct seq_file
*m
, struct service_level
*slr
)
1494 struct qeth_card
*card
= container_of(slr
, struct qeth_card
,
1495 qeth_service_level
);
1496 if (card
->info
.mcl_level
[0])
1497 seq_printf(m
, "qeth: %s firmware level %s\n",
1498 CARD_BUS_ID(card
), card
->info
.mcl_level
);
1501 static struct qeth_card
*qeth_alloc_card(void)
1503 struct qeth_card
*card
;
1505 QETH_DBF_TEXT(SETUP
, 2, "alloccrd");
1506 card
= kzalloc(sizeof(struct qeth_card
), GFP_DMA
|GFP_KERNEL
);
1509 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
1510 if (qeth_setup_channel(&card
->read
))
1512 if (qeth_setup_channel(&card
->write
))
1514 card
->options
.layer2
= -1;
1515 card
->qeth_service_level
.seq_print
= qeth_core_sl_print
;
1516 register_service_level(&card
->qeth_service_level
);
1520 qeth_clean_channel(&card
->read
);
1527 static void qeth_determine_card_type(struct qeth_card
*card
)
1529 QETH_DBF_TEXT(SETUP
, 2, "detcdtyp");
1531 card
->qdio
.do_prio_queueing
= QETH_PRIOQ_DEFAULT
;
1532 card
->qdio
.default_out_queue
= QETH_DEFAULT_QUEUE
;
1533 card
->info
.type
= CARD_RDEV(card
)->id
.driver_info
;
1534 card
->qdio
.no_out_queues
= QETH_MAX_QUEUES
;
1535 if (card
->info
.type
== QETH_CARD_TYPE_IQD
)
1536 card
->info
.is_multicast_different
= 0x0103;
1537 qeth_update_from_chp_desc(card
);
1540 static int qeth_clear_channel(struct qeth_channel
*channel
)
1542 unsigned long flags
;
1543 struct qeth_card
*card
;
1546 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1547 QETH_CARD_TEXT(card
, 3, "clearch");
1548 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
1549 rc
= ccw_device_clear(channel
->ccwdev
, QETH_CLEAR_CHANNEL_PARM
);
1550 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
1554 rc
= wait_event_interruptible_timeout(card
->wait_q
,
1555 channel
->state
== CH_STATE_STOPPED
, QETH_TIMEOUT
);
1556 if (rc
== -ERESTARTSYS
)
1558 if (channel
->state
!= CH_STATE_STOPPED
)
1560 channel
->state
= CH_STATE_DOWN
;
1564 static int qeth_halt_channel(struct qeth_channel
*channel
)
1566 unsigned long flags
;
1567 struct qeth_card
*card
;
1570 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1571 QETH_CARD_TEXT(card
, 3, "haltch");
1572 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
1573 rc
= ccw_device_halt(channel
->ccwdev
, QETH_HALT_CHANNEL_PARM
);
1574 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
1578 rc
= wait_event_interruptible_timeout(card
->wait_q
,
1579 channel
->state
== CH_STATE_HALTED
, QETH_TIMEOUT
);
1580 if (rc
== -ERESTARTSYS
)
1582 if (channel
->state
!= CH_STATE_HALTED
)
1587 static int qeth_halt_channels(struct qeth_card
*card
)
1589 int rc1
= 0, rc2
= 0, rc3
= 0;
1591 QETH_CARD_TEXT(card
, 3, "haltchs");
1592 rc1
= qeth_halt_channel(&card
->read
);
1593 rc2
= qeth_halt_channel(&card
->write
);
1594 rc3
= qeth_halt_channel(&card
->data
);
1602 static int qeth_clear_channels(struct qeth_card
*card
)
1604 int rc1
= 0, rc2
= 0, rc3
= 0;
1606 QETH_CARD_TEXT(card
, 3, "clearchs");
1607 rc1
= qeth_clear_channel(&card
->read
);
1608 rc2
= qeth_clear_channel(&card
->write
);
1609 rc3
= qeth_clear_channel(&card
->data
);
1617 static int qeth_clear_halt_card(struct qeth_card
*card
, int halt
)
1621 QETH_CARD_TEXT(card
, 3, "clhacrd");
1624 rc
= qeth_halt_channels(card
);
1627 return qeth_clear_channels(card
);
1630 int qeth_qdio_clear_card(struct qeth_card
*card
, int use_halt
)
1634 QETH_CARD_TEXT(card
, 3, "qdioclr");
1635 switch (atomic_cmpxchg(&card
->qdio
.state
, QETH_QDIO_ESTABLISHED
,
1636 QETH_QDIO_CLEANING
)) {
1637 case QETH_QDIO_ESTABLISHED
:
1638 if (card
->info
.type
== QETH_CARD_TYPE_IQD
)
1639 rc
= qdio_shutdown(CARD_DDEV(card
),
1640 QDIO_FLAG_CLEANUP_USING_HALT
);
1642 rc
= qdio_shutdown(CARD_DDEV(card
),
1643 QDIO_FLAG_CLEANUP_USING_CLEAR
);
1645 QETH_CARD_TEXT_(card
, 3, "1err%d", rc
);
1646 atomic_set(&card
->qdio
.state
, QETH_QDIO_ALLOCATED
);
1648 case QETH_QDIO_CLEANING
:
1653 rc
= qeth_clear_halt_card(card
, use_halt
);
1655 QETH_CARD_TEXT_(card
, 3, "2err%d", rc
);
1656 card
->state
= CARD_STATE_DOWN
;
1659 EXPORT_SYMBOL_GPL(qeth_qdio_clear_card
);
1661 static int qeth_read_conf_data(struct qeth_card
*card
, void **buffer
,
1667 struct qeth_channel
*channel
= &card
->data
;
1668 unsigned long flags
;
1671 * scan for RCD command in extended SenseID data
1673 ciw
= ccw_device_get_ciw(channel
->ccwdev
, CIW_TYPE_RCD
);
1674 if (!ciw
|| ciw
->cmd
== 0)
1676 rcd_buf
= kzalloc(ciw
->count
, GFP_KERNEL
| GFP_DMA
);
1680 channel
->ccw
.cmd_code
= ciw
->cmd
;
1681 channel
->ccw
.cda
= (__u32
) __pa(rcd_buf
);
1682 channel
->ccw
.count
= ciw
->count
;
1683 channel
->ccw
.flags
= CCW_FLAG_SLI
;
1684 channel
->state
= CH_STATE_RCD
;
1685 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
1686 ret
= ccw_device_start_timeout(channel
->ccwdev
, &channel
->ccw
,
1687 QETH_RCD_PARM
, LPM_ANYPATH
, 0,
1689 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
1691 wait_event(card
->wait_q
,
1692 (channel
->state
== CH_STATE_RCD_DONE
||
1693 channel
->state
== CH_STATE_DOWN
));
1694 if (channel
->state
== CH_STATE_DOWN
)
1697 channel
->state
= CH_STATE_DOWN
;
1703 *length
= ciw
->count
;
1709 static void qeth_configure_unitaddr(struct qeth_card
*card
, char *prcd
)
1711 QETH_DBF_TEXT(SETUP
, 2, "cfgunit");
1712 card
->info
.chpid
= prcd
[30];
1713 card
->info
.unit_addr2
= prcd
[31];
1714 card
->info
.cula
= prcd
[63];
1715 card
->info
.guestlan
= ((prcd
[0x10] == _ascebc
['V']) &&
1716 (prcd
[0x11] == _ascebc
['M']));
1719 /* Determine whether the device requires a specific layer discipline */
1720 static enum qeth_discipline_id
qeth_enforce_discipline(struct qeth_card
*card
)
1722 if (card
->info
.type
== QETH_CARD_TYPE_OSM
||
1723 card
->info
.type
== QETH_CARD_TYPE_OSN
) {
1724 QETH_DBF_TEXT(SETUP
, 3, "force l2");
1725 return QETH_DISCIPLINE_LAYER2
;
1728 /* virtual HiperSocket is L3 only: */
1729 if (card
->info
.guestlan
&& card
->info
.type
== QETH_CARD_TYPE_IQD
) {
1730 QETH_DBF_TEXT(SETUP
, 3, "force l3");
1731 return QETH_DISCIPLINE_LAYER3
;
1734 QETH_DBF_TEXT(SETUP
, 3, "force no");
1735 return QETH_DISCIPLINE_UNDETERMINED
;
1738 static void qeth_configure_blkt_default(struct qeth_card
*card
, char *prcd
)
1740 QETH_DBF_TEXT(SETUP
, 2, "cfgblkt");
1742 if (prcd
[74] == 0xF0 && prcd
[75] == 0xF0 &&
1743 prcd
[76] >= 0xF1 && prcd
[76] <= 0xF4) {
1744 card
->info
.blkt
.time_total
= 0;
1745 card
->info
.blkt
.inter_packet
= 0;
1746 card
->info
.blkt
.inter_packet_jumbo
= 0;
1748 card
->info
.blkt
.time_total
= 250;
1749 card
->info
.blkt
.inter_packet
= 5;
1750 card
->info
.blkt
.inter_packet_jumbo
= 15;
1754 static void qeth_init_tokens(struct qeth_card
*card
)
1756 card
->token
.issuer_rm_w
= 0x00010103UL
;
1757 card
->token
.cm_filter_w
= 0x00010108UL
;
1758 card
->token
.cm_connection_w
= 0x0001010aUL
;
1759 card
->token
.ulp_filter_w
= 0x0001010bUL
;
1760 card
->token
.ulp_connection_w
= 0x0001010dUL
;
1763 static void qeth_init_func_level(struct qeth_card
*card
)
1765 switch (card
->info
.type
) {
1766 case QETH_CARD_TYPE_IQD
:
1767 card
->info
.func_level
= QETH_IDX_FUNC_LEVEL_IQD
;
1769 case QETH_CARD_TYPE_OSD
:
1770 case QETH_CARD_TYPE_OSN
:
1771 card
->info
.func_level
= QETH_IDX_FUNC_LEVEL_OSD
;
1778 static int qeth_idx_activate_get_answer(struct qeth_channel
*channel
,
1779 void (*idx_reply_cb
)(struct qeth_channel
*,
1780 struct qeth_cmd_buffer
*))
1782 struct qeth_cmd_buffer
*iob
;
1783 unsigned long flags
;
1785 struct qeth_card
*card
;
1787 QETH_DBF_TEXT(SETUP
, 2, "idxanswr");
1788 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1789 iob
= qeth_get_buffer(channel
);
1792 iob
->callback
= idx_reply_cb
;
1793 memcpy(&channel
->ccw
, READ_CCW
, sizeof(struct ccw1
));
1794 channel
->ccw
.count
= QETH_BUFSIZE
;
1795 channel
->ccw
.cda
= (__u32
) __pa(iob
->data
);
1797 wait_event(card
->wait_q
,
1798 atomic_cmpxchg(&channel
->irq_pending
, 0, 1) == 0);
1799 QETH_DBF_TEXT(SETUP
, 6, "noirqpnd");
1800 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
1801 rc
= ccw_device_start(channel
->ccwdev
,
1802 &channel
->ccw
, (addr_t
) iob
, 0, 0);
1803 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
1806 QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc
);
1807 QETH_DBF_TEXT_(SETUP
, 2, "2err%d", rc
);
1808 atomic_set(&channel
->irq_pending
, 0);
1809 wake_up(&card
->wait_q
);
1812 rc
= wait_event_interruptible_timeout(card
->wait_q
,
1813 channel
->state
== CH_STATE_UP
, QETH_TIMEOUT
);
1814 if (rc
== -ERESTARTSYS
)
1816 if (channel
->state
!= CH_STATE_UP
) {
1818 QETH_DBF_TEXT_(SETUP
, 2, "3err%d", rc
);
1819 qeth_clear_cmd_buffers(channel
);
1825 static int qeth_idx_activate_channel(struct qeth_channel
*channel
,
1826 void (*idx_reply_cb
)(struct qeth_channel
*,
1827 struct qeth_cmd_buffer
*))
1829 struct qeth_card
*card
;
1830 struct qeth_cmd_buffer
*iob
;
1831 unsigned long flags
;
1835 struct ccw_dev_id temp_devid
;
1837 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1839 QETH_DBF_TEXT(SETUP
, 2, "idxactch");
1841 iob
= qeth_get_buffer(channel
);
1844 iob
->callback
= idx_reply_cb
;
1845 memcpy(&channel
->ccw
, WRITE_CCW
, sizeof(struct ccw1
));
1846 channel
->ccw
.count
= IDX_ACTIVATE_SIZE
;
1847 channel
->ccw
.cda
= (__u32
) __pa(iob
->data
);
1848 if (channel
== &card
->write
) {
1849 memcpy(iob
->data
, IDX_ACTIVATE_WRITE
, IDX_ACTIVATE_SIZE
);
1850 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob
->data
),
1851 &card
->seqno
.trans_hdr
, QETH_SEQ_NO_LENGTH
);
1852 card
->seqno
.trans_hdr
++;
1854 memcpy(iob
->data
, IDX_ACTIVATE_READ
, IDX_ACTIVATE_SIZE
);
1855 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob
->data
),
1856 &card
->seqno
.trans_hdr
, QETH_SEQ_NO_LENGTH
);
1858 tmp
= ((__u8
)card
->info
.portno
) | 0x80;
1859 memcpy(QETH_IDX_ACT_PNO(iob
->data
), &tmp
, 1);
1860 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob
->data
),
1861 &card
->token
.issuer_rm_w
, QETH_MPC_TOKEN_LENGTH
);
1862 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob
->data
),
1863 &card
->info
.func_level
, sizeof(__u16
));
1864 ccw_device_get_id(CARD_DDEV(card
), &temp_devid
);
1865 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob
->data
), &temp_devid
.devno
, 2);
1866 temp
= (card
->info
.cula
<< 8) + card
->info
.unit_addr2
;
1867 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob
->data
), &temp
, 2);
1869 wait_event(card
->wait_q
,
1870 atomic_cmpxchg(&channel
->irq_pending
, 0, 1) == 0);
1871 QETH_DBF_TEXT(SETUP
, 6, "noirqpnd");
1872 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
1873 rc
= ccw_device_start(channel
->ccwdev
,
1874 &channel
->ccw
, (addr_t
) iob
, 0, 0);
1875 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
1878 QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n",
1880 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
1881 atomic_set(&channel
->irq_pending
, 0);
1882 wake_up(&card
->wait_q
);
1885 rc
= wait_event_interruptible_timeout(card
->wait_q
,
1886 channel
->state
== CH_STATE_ACTIVATING
, QETH_TIMEOUT
);
1887 if (rc
== -ERESTARTSYS
)
1889 if (channel
->state
!= CH_STATE_ACTIVATING
) {
1890 dev_warn(&channel
->ccwdev
->dev
, "The qeth device driver"
1891 " failed to recover an error on the device\n");
1892 QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n",
1893 dev_name(&channel
->ccwdev
->dev
));
1894 QETH_DBF_TEXT_(SETUP
, 2, "2err%d", -ETIME
);
1895 qeth_clear_cmd_buffers(channel
);
1898 return qeth_idx_activate_get_answer(channel
, idx_reply_cb
);
1901 static int qeth_peer_func_level(int level
)
1903 if ((level
& 0xff) == 8)
1904 return (level
& 0xff) + 0x400;
1905 if (((level
>> 8) & 3) == 1)
1906 return (level
& 0xff) + 0x200;
1910 static void qeth_idx_write_cb(struct qeth_channel
*channel
,
1911 struct qeth_cmd_buffer
*iob
)
1913 struct qeth_card
*card
;
1916 QETH_DBF_TEXT(SETUP
, 2, "idxwrcb");
1918 if (channel
->state
== CH_STATE_DOWN
) {
1919 channel
->state
= CH_STATE_ACTIVATING
;
1922 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1924 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob
->data
))) {
1925 if (QETH_IDX_ACT_CAUSE_CODE(iob
->data
) == QETH_IDX_ACT_ERR_EXCL
)
1926 dev_err(&card
->write
.ccwdev
->dev
,
1927 "The adapter is used exclusively by another "
1930 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel:"
1931 " negative reply\n",
1932 dev_name(&card
->write
.ccwdev
->dev
));
1935 memcpy(&temp
, QETH_IDX_ACT_FUNC_LEVEL(iob
->data
), 2);
1936 if ((temp
& ~0x0100) != qeth_peer_func_level(card
->info
.func_level
)) {
1937 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel: "
1938 "function level mismatch (sent: 0x%x, received: "
1939 "0x%x)\n", dev_name(&card
->write
.ccwdev
->dev
),
1940 card
->info
.func_level
, temp
);
1943 channel
->state
= CH_STATE_UP
;
1945 qeth_release_buffer(channel
, iob
);
1948 static void qeth_idx_read_cb(struct qeth_channel
*channel
,
1949 struct qeth_cmd_buffer
*iob
)
1951 struct qeth_card
*card
;
1954 QETH_DBF_TEXT(SETUP
, 2, "idxrdcb");
1955 if (channel
->state
== CH_STATE_DOWN
) {
1956 channel
->state
= CH_STATE_ACTIVATING
;
1960 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1961 if (qeth_check_idx_response(card
, iob
->data
))
1964 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob
->data
))) {
1965 switch (QETH_IDX_ACT_CAUSE_CODE(iob
->data
)) {
1966 case QETH_IDX_ACT_ERR_EXCL
:
1967 dev_err(&card
->write
.ccwdev
->dev
,
1968 "The adapter is used exclusively by another "
1971 case QETH_IDX_ACT_ERR_AUTH
:
1972 case QETH_IDX_ACT_ERR_AUTH_USER
:
1973 dev_err(&card
->read
.ccwdev
->dev
,
1974 "Setting the device online failed because of "
1975 "insufficient authorization\n");
1978 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel:"
1979 " negative reply\n",
1980 dev_name(&card
->read
.ccwdev
->dev
));
1982 QETH_CARD_TEXT_(card
, 2, "idxread%c",
1983 QETH_IDX_ACT_CAUSE_CODE(iob
->data
));
1987 memcpy(&temp
, QETH_IDX_ACT_FUNC_LEVEL(iob
->data
), 2);
1988 if (temp
!= qeth_peer_func_level(card
->info
.func_level
)) {
1989 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel: function "
1990 "level mismatch (sent: 0x%x, received: 0x%x)\n",
1991 dev_name(&card
->read
.ccwdev
->dev
),
1992 card
->info
.func_level
, temp
);
1995 memcpy(&card
->token
.issuer_rm_r
,
1996 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob
->data
),
1997 QETH_MPC_TOKEN_LENGTH
);
1998 memcpy(&card
->info
.mcl_level
[0],
1999 QETH_IDX_REPLY_LEVEL(iob
->data
), QETH_MCL_LENGTH
);
2000 channel
->state
= CH_STATE_UP
;
2002 qeth_release_buffer(channel
, iob
);
2005 void qeth_prepare_control_data(struct qeth_card
*card
, int len
,
2006 struct qeth_cmd_buffer
*iob
)
2008 qeth_setup_ccw(&card
->write
, iob
->data
, len
);
2009 iob
->callback
= qeth_release_buffer
;
2011 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob
->data
),
2012 &card
->seqno
.trans_hdr
, QETH_SEQ_NO_LENGTH
);
2013 card
->seqno
.trans_hdr
++;
2014 memcpy(QETH_PDU_HEADER_SEQ_NO(iob
->data
),
2015 &card
->seqno
.pdu_hdr
, QETH_SEQ_NO_LENGTH
);
2016 card
->seqno
.pdu_hdr
++;
2017 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob
->data
),
2018 &card
->seqno
.pdu_hdr_ack
, QETH_SEQ_NO_LENGTH
);
2019 QETH_DBF_HEX(CTRL
, 2, iob
->data
, QETH_DBF_CTRL_LEN
);
2021 EXPORT_SYMBOL_GPL(qeth_prepare_control_data
);
2024 * qeth_send_control_data() - send control command to the card
2025 * @card: qeth_card structure pointer
2026 * @len: size of the command buffer
2027 * @iob: qeth_cmd_buffer pointer
2028 * @reply_cb: callback function pointer
2029 * @cb_card: pointer to the qeth_card structure
2030 * @cb_reply: pointer to the qeth_reply structure
2031 * @cb_cmd: pointer to the original iob for non-IPA
2032 * commands, or to the qeth_ipa_cmd structure
2033 * for the IPA commands.
2034 * @reply_param: private pointer passed to the callback
2036 * Returns the value of the `return_code' field of the response
2037 * block returned from the hardware, or other error indication.
2038 * Value of zero indicates successful execution of the command.
2040 * Callback function gets called one or more times, with cb_cmd
2041 * pointing to the response returned by the hardware. Callback
2042 * function must return non-zero if more reply blocks are expected,
2043 * and zero if the last or only reply block is received. Callback
2044 * function can get the value of the reply_param pointer from the
2045 * field 'param' of the structure qeth_reply.
2048 int qeth_send_control_data(struct qeth_card
*card
, int len
,
2049 struct qeth_cmd_buffer
*iob
,
2050 int (*reply_cb
)(struct qeth_card
*cb_card
,
2051 struct qeth_reply
*cb_reply
,
2052 unsigned long cb_cmd
),
2056 unsigned long flags
;
2057 struct qeth_reply
*reply
= NULL
;
2058 unsigned long timeout
, event_timeout
;
2059 struct qeth_ipa_cmd
*cmd
;
2061 QETH_CARD_TEXT(card
, 2, "sendctl");
2063 if (card
->read_or_write_problem
) {
2064 qeth_release_buffer(iob
->channel
, iob
);
2067 reply
= qeth_alloc_reply(card
);
2071 reply
->callback
= reply_cb
;
2072 reply
->param
= reply_param
;
2073 if (card
->state
== CARD_STATE_DOWN
)
2074 reply
->seqno
= QETH_IDX_COMMAND_SEQNO
;
2076 reply
->seqno
= card
->seqno
.ipa
++;
2077 init_waitqueue_head(&reply
->wait_q
);
2078 spin_lock_irqsave(&card
->lock
, flags
);
2079 list_add_tail(&reply
->list
, &card
->cmd_waiter_list
);
2080 spin_unlock_irqrestore(&card
->lock
, flags
);
2082 while (atomic_cmpxchg(&card
->write
.irq_pending
, 0, 1)) ;
2083 qeth_prepare_control_data(card
, len
, iob
);
2085 if (IS_IPA(iob
->data
))
2086 event_timeout
= QETH_IPA_TIMEOUT
;
2088 event_timeout
= QETH_TIMEOUT
;
2089 timeout
= jiffies
+ event_timeout
;
2091 QETH_CARD_TEXT(card
, 6, "noirqpnd");
2092 spin_lock_irqsave(get_ccwdev_lock(card
->write
.ccwdev
), flags
);
2093 rc
= ccw_device_start(card
->write
.ccwdev
, &card
->write
.ccw
,
2094 (addr_t
) iob
, 0, 0);
2095 spin_unlock_irqrestore(get_ccwdev_lock(card
->write
.ccwdev
), flags
);
2097 QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: "
2098 "ccw_device_start rc = %i\n",
2099 dev_name(&card
->write
.ccwdev
->dev
), rc
);
2100 QETH_CARD_TEXT_(card
, 2, " err%d", rc
);
2101 spin_lock_irqsave(&card
->lock
, flags
);
2102 list_del_init(&reply
->list
);
2103 qeth_put_reply(reply
);
2104 spin_unlock_irqrestore(&card
->lock
, flags
);
2105 qeth_release_buffer(iob
->channel
, iob
);
2106 atomic_set(&card
->write
.irq_pending
, 0);
2107 wake_up(&card
->wait_q
);
2111 /* we have only one long running ipassist, since we can ensure
2112 process context of this command we can sleep */
2113 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
2114 if ((cmd
->hdr
.command
== IPA_CMD_SETIP
) &&
2115 (cmd
->hdr
.prot_version
== QETH_PROT_IPV4
)) {
2116 if (!wait_event_timeout(reply
->wait_q
,
2117 atomic_read(&reply
->received
), event_timeout
))
2120 while (!atomic_read(&reply
->received
)) {
2121 if (time_after(jiffies
, timeout
))
2127 if (reply
->rc
== -EIO
)
2130 qeth_put_reply(reply
);
2135 spin_lock_irqsave(&reply
->card
->lock
, flags
);
2136 list_del_init(&reply
->list
);
2137 spin_unlock_irqrestore(&reply
->card
->lock
, flags
);
2138 atomic_inc(&reply
->received
);
2140 atomic_set(&card
->write
.irq_pending
, 0);
2141 qeth_release_buffer(iob
->channel
, iob
);
2142 card
->write
.buf_no
= (card
->write
.buf_no
+ 1) % QETH_CMD_BUFFER_NO
;
2144 qeth_put_reply(reply
);
2147 EXPORT_SYMBOL_GPL(qeth_send_control_data
);
2149 static int qeth_cm_enable_cb(struct qeth_card
*card
, struct qeth_reply
*reply
,
2152 struct qeth_cmd_buffer
*iob
;
2154 QETH_DBF_TEXT(SETUP
, 2, "cmenblcb");
2156 iob
= (struct qeth_cmd_buffer
*) data
;
2157 memcpy(&card
->token
.cm_filter_r
,
2158 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob
->data
),
2159 QETH_MPC_TOKEN_LENGTH
);
2160 QETH_DBF_TEXT_(SETUP
, 2, " rc%d", iob
->rc
);
2164 static int qeth_cm_enable(struct qeth_card
*card
)
2167 struct qeth_cmd_buffer
*iob
;
2169 QETH_DBF_TEXT(SETUP
, 2, "cmenable");
2171 iob
= qeth_wait_for_buffer(&card
->write
);
2172 memcpy(iob
->data
, CM_ENABLE
, CM_ENABLE_SIZE
);
2173 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob
->data
),
2174 &card
->token
.issuer_rm_r
, QETH_MPC_TOKEN_LENGTH
);
2175 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob
->data
),
2176 &card
->token
.cm_filter_w
, QETH_MPC_TOKEN_LENGTH
);
2178 rc
= qeth_send_control_data(card
, CM_ENABLE_SIZE
, iob
,
2179 qeth_cm_enable_cb
, NULL
);
2183 static int qeth_cm_setup_cb(struct qeth_card
*card
, struct qeth_reply
*reply
,
2187 struct qeth_cmd_buffer
*iob
;
2189 QETH_DBF_TEXT(SETUP
, 2, "cmsetpcb");
2191 iob
= (struct qeth_cmd_buffer
*) data
;
2192 memcpy(&card
->token
.cm_connection_r
,
2193 QETH_CM_SETUP_RESP_DEST_ADDR(iob
->data
),
2194 QETH_MPC_TOKEN_LENGTH
);
2195 QETH_DBF_TEXT_(SETUP
, 2, " rc%d", iob
->rc
);
2199 static int qeth_cm_setup(struct qeth_card
*card
)
2202 struct qeth_cmd_buffer
*iob
;
2204 QETH_DBF_TEXT(SETUP
, 2, "cmsetup");
2206 iob
= qeth_wait_for_buffer(&card
->write
);
2207 memcpy(iob
->data
, CM_SETUP
, CM_SETUP_SIZE
);
2208 memcpy(QETH_CM_SETUP_DEST_ADDR(iob
->data
),
2209 &card
->token
.issuer_rm_r
, QETH_MPC_TOKEN_LENGTH
);
2210 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob
->data
),
2211 &card
->token
.cm_connection_w
, QETH_MPC_TOKEN_LENGTH
);
2212 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob
->data
),
2213 &card
->token
.cm_filter_r
, QETH_MPC_TOKEN_LENGTH
);
2214 rc
= qeth_send_control_data(card
, CM_SETUP_SIZE
, iob
,
2215 qeth_cm_setup_cb
, NULL
);
2220 static int qeth_get_initial_mtu_for_card(struct qeth_card
*card
)
2222 switch (card
->info
.type
) {
2223 case QETH_CARD_TYPE_IQD
:
2224 return card
->info
.max_mtu
;
2225 case QETH_CARD_TYPE_OSD
:
2226 case QETH_CARD_TYPE_OSX
:
2227 if (!card
->options
.layer2
)
2228 return ETH_DATA_LEN
- 8; /* L3: allow for LLC + SNAP */
2231 return ETH_DATA_LEN
;
2235 static int qeth_get_mtu_outof_framesize(int framesize
)
2237 switch (framesize
) {
2251 static int qeth_mtu_is_valid(struct qeth_card
*card
, int mtu
)
2253 switch (card
->info
.type
) {
2254 case QETH_CARD_TYPE_OSD
:
2255 case QETH_CARD_TYPE_OSM
:
2256 case QETH_CARD_TYPE_OSX
:
2257 case QETH_CARD_TYPE_IQD
:
2258 return ((mtu
>= 576) &&
2259 (mtu
<= card
->info
.max_mtu
));
2260 case QETH_CARD_TYPE_OSN
:
2266 static int qeth_ulp_enable_cb(struct qeth_card
*card
, struct qeth_reply
*reply
,
2270 __u16 mtu
, framesize
;
2273 struct qeth_cmd_buffer
*iob
;
2275 QETH_DBF_TEXT(SETUP
, 2, "ulpenacb");
2277 iob
= (struct qeth_cmd_buffer
*) data
;
2278 memcpy(&card
->token
.ulp_filter_r
,
2279 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob
->data
),
2280 QETH_MPC_TOKEN_LENGTH
);
2281 if (card
->info
.type
== QETH_CARD_TYPE_IQD
) {
2282 memcpy(&framesize
, QETH_ULP_ENABLE_RESP_MAX_MTU(iob
->data
), 2);
2283 mtu
= qeth_get_mtu_outof_framesize(framesize
);
2286 QETH_DBF_TEXT_(SETUP
, 2, " rc%d", iob
->rc
);
2289 if (card
->info
.initial_mtu
&& (card
->info
.initial_mtu
!= mtu
)) {
2290 /* frame size has changed */
2292 ((card
->dev
->mtu
== card
->info
.initial_mtu
) ||
2293 (card
->dev
->mtu
> mtu
)))
2294 card
->dev
->mtu
= mtu
;
2295 qeth_free_qdio_buffers(card
);
2297 card
->info
.initial_mtu
= mtu
;
2298 card
->info
.max_mtu
= mtu
;
2299 card
->qdio
.in_buf_size
= mtu
+ 2 * PAGE_SIZE
;
2301 card
->info
.max_mtu
= *(__u16
*)QETH_ULP_ENABLE_RESP_MAX_MTU(
2303 card
->info
.initial_mtu
= min(card
->info
.max_mtu
,
2304 qeth_get_initial_mtu_for_card(card
));
2305 card
->qdio
.in_buf_size
= QETH_IN_BUF_SIZE_DEFAULT
;
2308 memcpy(&len
, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob
->data
), 2);
2309 if (len
>= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE
) {
2311 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob
->data
), 1);
2312 card
->info
.link_type
= link_type
;
2314 card
->info
.link_type
= 0;
2315 QETH_DBF_TEXT_(SETUP
, 2, "link%d", card
->info
.link_type
);
2316 QETH_DBF_TEXT_(SETUP
, 2, " rc%d", iob
->rc
);
2320 static int qeth_ulp_enable(struct qeth_card
*card
)
2324 struct qeth_cmd_buffer
*iob
;
2326 /*FIXME: trace view callbacks*/
2327 QETH_DBF_TEXT(SETUP
, 2, "ulpenabl");
2329 iob
= qeth_wait_for_buffer(&card
->write
);
2330 memcpy(iob
->data
, ULP_ENABLE
, ULP_ENABLE_SIZE
);
2332 *(QETH_ULP_ENABLE_LINKNUM(iob
->data
)) =
2333 (__u8
) card
->info
.portno
;
2334 if (card
->options
.layer2
)
2335 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
2336 prot_type
= QETH_PROT_OSN2
;
2338 prot_type
= QETH_PROT_LAYER2
;
2340 prot_type
= QETH_PROT_TCPIP
;
2342 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob
->data
), &prot_type
, 1);
2343 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob
->data
),
2344 &card
->token
.cm_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2345 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob
->data
),
2346 &card
->token
.ulp_filter_w
, QETH_MPC_TOKEN_LENGTH
);
2347 rc
= qeth_send_control_data(card
, ULP_ENABLE_SIZE
, iob
,
2348 qeth_ulp_enable_cb
, NULL
);
2353 static int qeth_ulp_setup_cb(struct qeth_card
*card
, struct qeth_reply
*reply
,
2356 struct qeth_cmd_buffer
*iob
;
2358 QETH_DBF_TEXT(SETUP
, 2, "ulpstpcb");
2360 iob
= (struct qeth_cmd_buffer
*) data
;
2361 memcpy(&card
->token
.ulp_connection_r
,
2362 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob
->data
),
2363 QETH_MPC_TOKEN_LENGTH
);
2364 if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob
->data
),
2366 QETH_DBF_TEXT(SETUP
, 2, "olmlimit");
2367 dev_err(&card
->gdev
->dev
, "A connection could not be "
2368 "established because of an OLM limit\n");
2371 QETH_DBF_TEXT_(SETUP
, 2, " rc%d", iob
->rc
);
2375 static int qeth_ulp_setup(struct qeth_card
*card
)
2379 struct qeth_cmd_buffer
*iob
;
2380 struct ccw_dev_id dev_id
;
2382 QETH_DBF_TEXT(SETUP
, 2, "ulpsetup");
2384 iob
= qeth_wait_for_buffer(&card
->write
);
2385 memcpy(iob
->data
, ULP_SETUP
, ULP_SETUP_SIZE
);
2387 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob
->data
),
2388 &card
->token
.cm_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2389 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob
->data
),
2390 &card
->token
.ulp_connection_w
, QETH_MPC_TOKEN_LENGTH
);
2391 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob
->data
),
2392 &card
->token
.ulp_filter_r
, QETH_MPC_TOKEN_LENGTH
);
2394 ccw_device_get_id(CARD_DDEV(card
), &dev_id
);
2395 memcpy(QETH_ULP_SETUP_CUA(iob
->data
), &dev_id
.devno
, 2);
2396 temp
= (card
->info
.cula
<< 8) + card
->info
.unit_addr2
;
2397 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob
->data
), &temp
, 2);
2398 rc
= qeth_send_control_data(card
, ULP_SETUP_SIZE
, iob
,
2399 qeth_ulp_setup_cb
, NULL
);
2403 static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q
*q
, int bidx
)
2406 struct qeth_qdio_out_buffer
*newbuf
;
2409 newbuf
= kmem_cache_zalloc(qeth_qdio_outbuf_cache
, GFP_ATOMIC
);
2414 newbuf
->buffer
= q
->qdio_bufs
[bidx
];
2415 skb_queue_head_init(&newbuf
->skb_list
);
2416 lockdep_set_class(&newbuf
->skb_list
.lock
, &qdio_out_skb_queue_key
);
2419 newbuf
->next_pending
= q
->bufs
[bidx
];
2420 atomic_set(&newbuf
->state
, QETH_QDIO_BUF_EMPTY
);
2421 q
->bufs
[bidx
] = newbuf
;
2423 q
->bufstates
[bidx
].user
= newbuf
;
2424 QETH_CARD_TEXT_(q
->card
, 2, "nbs%d", bidx
);
2425 QETH_CARD_TEXT_(q
->card
, 2, "%lx", (long) newbuf
);
2426 QETH_CARD_TEXT_(q
->card
, 2, "%lx",
2427 (long) newbuf
->next_pending
);
2433 static void qeth_free_qdio_out_buf(struct qeth_qdio_out_q
*q
)
2438 qdio_free_buffers(q
->qdio_bufs
, QDIO_MAX_BUFFERS_PER_Q
);
2442 static struct qeth_qdio_out_q
*qeth_alloc_qdio_out_buf(void)
2444 struct qeth_qdio_out_q
*q
= kzalloc(sizeof(*q
), GFP_KERNEL
);
2449 if (qdio_alloc_buffers(q
->qdio_bufs
, QDIO_MAX_BUFFERS_PER_Q
)) {
2456 static int qeth_alloc_qdio_buffers(struct qeth_card
*card
)
2460 QETH_DBF_TEXT(SETUP
, 2, "allcqdbf");
2462 if (atomic_cmpxchg(&card
->qdio
.state
, QETH_QDIO_UNINITIALIZED
,
2463 QETH_QDIO_ALLOCATED
) != QETH_QDIO_UNINITIALIZED
)
2466 QETH_DBF_TEXT(SETUP
, 2, "inq");
2467 card
->qdio
.in_q
= qeth_alloc_qdio_queue();
2468 if (!card
->qdio
.in_q
)
2471 /* inbound buffer pool */
2472 if (qeth_alloc_buffer_pool(card
))
2477 kzalloc(card
->qdio
.no_out_queues
*
2478 sizeof(struct qeth_qdio_out_q
*), GFP_KERNEL
);
2479 if (!card
->qdio
.out_qs
)
2481 for (i
= 0; i
< card
->qdio
.no_out_queues
; ++i
) {
2482 card
->qdio
.out_qs
[i
] = qeth_alloc_qdio_out_buf();
2483 if (!card
->qdio
.out_qs
[i
])
2485 QETH_DBF_TEXT_(SETUP
, 2, "outq %i", i
);
2486 QETH_DBF_HEX(SETUP
, 2, &card
->qdio
.out_qs
[i
], sizeof(void *));
2487 card
->qdio
.out_qs
[i
]->queue_no
= i
;
2488 /* give outbound qeth_qdio_buffers their qdio_buffers */
2489 for (j
= 0; j
< QDIO_MAX_BUFFERS_PER_Q
; ++j
) {
2490 WARN_ON(card
->qdio
.out_qs
[i
]->bufs
[j
] != NULL
);
2491 if (qeth_init_qdio_out_buf(card
->qdio
.out_qs
[i
], j
))
2492 goto out_freeoutqbufs
;
2497 if (qeth_alloc_cq(card
))
2505 kmem_cache_free(qeth_qdio_outbuf_cache
,
2506 card
->qdio
.out_qs
[i
]->bufs
[j
]);
2507 card
->qdio
.out_qs
[i
]->bufs
[j
] = NULL
;
2511 qeth_free_qdio_out_buf(card
->qdio
.out_qs
[--i
]);
2512 qeth_clear_outq_buffers(card
->qdio
.out_qs
[i
], 1);
2514 kfree(card
->qdio
.out_qs
);
2515 card
->qdio
.out_qs
= NULL
;
2517 qeth_free_buffer_pool(card
);
2519 qeth_free_qdio_queue(card
->qdio
.in_q
);
2520 card
->qdio
.in_q
= NULL
;
2522 atomic_set(&card
->qdio
.state
, QETH_QDIO_UNINITIALIZED
);
2526 static void qeth_free_qdio_buffers(struct qeth_card
*card
)
2530 if (atomic_xchg(&card
->qdio
.state
, QETH_QDIO_UNINITIALIZED
) ==
2531 QETH_QDIO_UNINITIALIZED
)
2535 cancel_delayed_work_sync(&card
->buffer_reclaim_work
);
2536 for (j
= 0; j
< QDIO_MAX_BUFFERS_PER_Q
; ++j
) {
2537 if (card
->qdio
.in_q
->bufs
[j
].rx_skb
)
2538 dev_kfree_skb_any(card
->qdio
.in_q
->bufs
[j
].rx_skb
);
2540 qeth_free_qdio_queue(card
->qdio
.in_q
);
2541 card
->qdio
.in_q
= NULL
;
2542 /* inbound buffer pool */
2543 qeth_free_buffer_pool(card
);
2544 /* free outbound qdio_qs */
2545 if (card
->qdio
.out_qs
) {
2546 for (i
= 0; i
< card
->qdio
.no_out_queues
; ++i
) {
2547 qeth_clear_outq_buffers(card
->qdio
.out_qs
[i
], 1);
2548 qeth_free_qdio_out_buf(card
->qdio
.out_qs
[i
]);
2550 kfree(card
->qdio
.out_qs
);
2551 card
->qdio
.out_qs
= NULL
;
2555 static void qeth_create_qib_param_field(struct qeth_card
*card
,
2559 param_field
[0] = _ascebc
['P'];
2560 param_field
[1] = _ascebc
['C'];
2561 param_field
[2] = _ascebc
['I'];
2562 param_field
[3] = _ascebc
['T'];
2563 *((unsigned int *) (¶m_field
[4])) = QETH_PCI_THRESHOLD_A(card
);
2564 *((unsigned int *) (¶m_field
[8])) = QETH_PCI_THRESHOLD_B(card
);
2565 *((unsigned int *) (¶m_field
[12])) = QETH_PCI_TIMER_VALUE(card
);
2568 static void qeth_create_qib_param_field_blkt(struct qeth_card
*card
,
2571 param_field
[16] = _ascebc
['B'];
2572 param_field
[17] = _ascebc
['L'];
2573 param_field
[18] = _ascebc
['K'];
2574 param_field
[19] = _ascebc
['T'];
2575 *((unsigned int *) (¶m_field
[20])) = card
->info
.blkt
.time_total
;
2576 *((unsigned int *) (¶m_field
[24])) = card
->info
.blkt
.inter_packet
;
2577 *((unsigned int *) (¶m_field
[28])) =
2578 card
->info
.blkt
.inter_packet_jumbo
;
2581 static int qeth_qdio_activate(struct qeth_card
*card
)
2583 QETH_DBF_TEXT(SETUP
, 3, "qdioact");
2584 return qdio_activate(CARD_DDEV(card
));
2587 static int qeth_dm_act(struct qeth_card
*card
)
2590 struct qeth_cmd_buffer
*iob
;
2592 QETH_DBF_TEXT(SETUP
, 2, "dmact");
2594 iob
= qeth_wait_for_buffer(&card
->write
);
2595 memcpy(iob
->data
, DM_ACT
, DM_ACT_SIZE
);
2597 memcpy(QETH_DM_ACT_DEST_ADDR(iob
->data
),
2598 &card
->token
.cm_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2599 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob
->data
),
2600 &card
->token
.ulp_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2601 rc
= qeth_send_control_data(card
, DM_ACT_SIZE
, iob
, NULL
, NULL
);
2605 static int qeth_mpc_initialize(struct qeth_card
*card
)
2609 QETH_DBF_TEXT(SETUP
, 2, "mpcinit");
2611 rc
= qeth_issue_next_read(card
);
2613 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
2616 rc
= qeth_cm_enable(card
);
2618 QETH_DBF_TEXT_(SETUP
, 2, "2err%d", rc
);
2621 rc
= qeth_cm_setup(card
);
2623 QETH_DBF_TEXT_(SETUP
, 2, "3err%d", rc
);
2626 rc
= qeth_ulp_enable(card
);
2628 QETH_DBF_TEXT_(SETUP
, 2, "4err%d", rc
);
2631 rc
= qeth_ulp_setup(card
);
2633 QETH_DBF_TEXT_(SETUP
, 2, "5err%d", rc
);
2636 rc
= qeth_alloc_qdio_buffers(card
);
2638 QETH_DBF_TEXT_(SETUP
, 2, "5err%d", rc
);
2641 rc
= qeth_qdio_establish(card
);
2643 QETH_DBF_TEXT_(SETUP
, 2, "6err%d", rc
);
2644 qeth_free_qdio_buffers(card
);
2647 rc
= qeth_qdio_activate(card
);
2649 QETH_DBF_TEXT_(SETUP
, 2, "7err%d", rc
);
2652 rc
= qeth_dm_act(card
);
2654 QETH_DBF_TEXT_(SETUP
, 2, "8err%d", rc
);
2660 qeth_qdio_clear_card(card
, card
->info
.type
!= QETH_CARD_TYPE_IQD
);
2661 qdio_free(CARD_DDEV(card
));
2665 void qeth_print_status_message(struct qeth_card
*card
)
2667 switch (card
->info
.type
) {
2668 case QETH_CARD_TYPE_OSD
:
2669 case QETH_CARD_TYPE_OSM
:
2670 case QETH_CARD_TYPE_OSX
:
2671 /* VM will use a non-zero first character
2672 * to indicate a HiperSockets like reporting
2673 * of the level OSA sets the first character to zero
2675 if (!card
->info
.mcl_level
[0]) {
2676 sprintf(card
->info
.mcl_level
, "%02x%02x",
2677 card
->info
.mcl_level
[2],
2678 card
->info
.mcl_level
[3]);
2682 case QETH_CARD_TYPE_IQD
:
2683 if ((card
->info
.guestlan
) ||
2684 (card
->info
.mcl_level
[0] & 0x80)) {
2685 card
->info
.mcl_level
[0] = (char) _ebcasc
[(__u8
)
2686 card
->info
.mcl_level
[0]];
2687 card
->info
.mcl_level
[1] = (char) _ebcasc
[(__u8
)
2688 card
->info
.mcl_level
[1]];
2689 card
->info
.mcl_level
[2] = (char) _ebcasc
[(__u8
)
2690 card
->info
.mcl_level
[2]];
2691 card
->info
.mcl_level
[3] = (char) _ebcasc
[(__u8
)
2692 card
->info
.mcl_level
[3]];
2693 card
->info
.mcl_level
[QETH_MCL_LENGTH
] = 0;
2697 memset(&card
->info
.mcl_level
[0], 0, QETH_MCL_LENGTH
+ 1);
2699 dev_info(&card
->gdev
->dev
,
2700 "Device is a%s card%s%s%s\nwith link type %s.\n",
2701 qeth_get_cardname(card
),
2702 (card
->info
.mcl_level
[0]) ? " (level: " : "",
2703 (card
->info
.mcl_level
[0]) ? card
->info
.mcl_level
: "",
2704 (card
->info
.mcl_level
[0]) ? ")" : "",
2705 qeth_get_cardname_short(card
));
2707 EXPORT_SYMBOL_GPL(qeth_print_status_message
);
2709 static void qeth_initialize_working_pool_list(struct qeth_card
*card
)
2711 struct qeth_buffer_pool_entry
*entry
;
2713 QETH_CARD_TEXT(card
, 5, "inwrklst");
2715 list_for_each_entry(entry
,
2716 &card
->qdio
.init_pool
.entry_list
, init_list
) {
2717 qeth_put_buffer_pool_entry(card
, entry
);
2721 static struct qeth_buffer_pool_entry
*qeth_find_free_buffer_pool_entry(
2722 struct qeth_card
*card
)
2724 struct list_head
*plh
;
2725 struct qeth_buffer_pool_entry
*entry
;
2729 if (list_empty(&card
->qdio
.in_buf_pool
.entry_list
))
2732 list_for_each(plh
, &card
->qdio
.in_buf_pool
.entry_list
) {
2733 entry
= list_entry(plh
, struct qeth_buffer_pool_entry
, list
);
2735 for (i
= 0; i
< QETH_MAX_BUFFER_ELEMENTS(card
); ++i
) {
2736 if (page_count(virt_to_page(entry
->elements
[i
])) > 1) {
2742 list_del_init(&entry
->list
);
2747 /* no free buffer in pool so take first one and swap pages */
2748 entry
= list_entry(card
->qdio
.in_buf_pool
.entry_list
.next
,
2749 struct qeth_buffer_pool_entry
, list
);
2750 for (i
= 0; i
< QETH_MAX_BUFFER_ELEMENTS(card
); ++i
) {
2751 if (page_count(virt_to_page(entry
->elements
[i
])) > 1) {
2752 page
= alloc_page(GFP_ATOMIC
);
2756 free_page((unsigned long)entry
->elements
[i
]);
2757 entry
->elements
[i
] = page_address(page
);
2758 if (card
->options
.performance_stats
)
2759 card
->perf_stats
.sg_alloc_page_rx
++;
2763 list_del_init(&entry
->list
);
2767 static int qeth_init_input_buffer(struct qeth_card
*card
,
2768 struct qeth_qdio_buffer
*buf
)
2770 struct qeth_buffer_pool_entry
*pool_entry
;
2773 if ((card
->options
.cq
== QETH_CQ_ENABLED
) && (!buf
->rx_skb
)) {
2774 buf
->rx_skb
= dev_alloc_skb(QETH_RX_PULL_LEN
+ ETH_HLEN
);
2779 pool_entry
= qeth_find_free_buffer_pool_entry(card
);
2784 * since the buffer is accessed only from the input_tasklet
2785 * there shouldn't be a need to synchronize; also, since we use
2786 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2790 buf
->pool_entry
= pool_entry
;
2791 for (i
= 0; i
< QETH_MAX_BUFFER_ELEMENTS(card
); ++i
) {
2792 buf
->buffer
->element
[i
].length
= PAGE_SIZE
;
2793 buf
->buffer
->element
[i
].addr
= pool_entry
->elements
[i
];
2794 if (i
== QETH_MAX_BUFFER_ELEMENTS(card
) - 1)
2795 buf
->buffer
->element
[i
].eflags
= SBAL_EFLAGS_LAST_ENTRY
;
2797 buf
->buffer
->element
[i
].eflags
= 0;
2798 buf
->buffer
->element
[i
].sflags
= 0;
2803 int qeth_init_qdio_queues(struct qeth_card
*card
)
2808 QETH_DBF_TEXT(SETUP
, 2, "initqdqs");
2811 qdio_reset_buffers(card
->qdio
.in_q
->qdio_bufs
,
2812 QDIO_MAX_BUFFERS_PER_Q
);
2813 qeth_initialize_working_pool_list(card
);
2814 /*give only as many buffers to hardware as we have buffer pool entries*/
2815 for (i
= 0; i
< card
->qdio
.in_buf_pool
.buf_count
- 1; ++i
)
2816 qeth_init_input_buffer(card
, &card
->qdio
.in_q
->bufs
[i
]);
2817 card
->qdio
.in_q
->next_buf_to_init
=
2818 card
->qdio
.in_buf_pool
.buf_count
- 1;
2819 rc
= do_QDIO(CARD_DDEV(card
), QDIO_FLAG_SYNC_INPUT
, 0, 0,
2820 card
->qdio
.in_buf_pool
.buf_count
- 1);
2822 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
2827 rc
= qeth_cq_init(card
);
2832 /* outbound queue */
2833 for (i
= 0; i
< card
->qdio
.no_out_queues
; ++i
) {
2834 qdio_reset_buffers(card
->qdio
.out_qs
[i
]->qdio_bufs
,
2835 QDIO_MAX_BUFFERS_PER_Q
);
2836 for (j
= 0; j
< QDIO_MAX_BUFFERS_PER_Q
; ++j
) {
2837 qeth_clear_output_buffer(card
->qdio
.out_qs
[i
],
2838 card
->qdio
.out_qs
[i
]->bufs
[j
],
2839 QETH_QDIO_BUF_EMPTY
);
2841 card
->qdio
.out_qs
[i
]->card
= card
;
2842 card
->qdio
.out_qs
[i
]->next_buf_to_fill
= 0;
2843 card
->qdio
.out_qs
[i
]->do_pack
= 0;
2844 atomic_set(&card
->qdio
.out_qs
[i
]->used_buffers
, 0);
2845 atomic_set(&card
->qdio
.out_qs
[i
]->set_pci_flags_count
, 0);
2846 atomic_set(&card
->qdio
.out_qs
[i
]->state
,
2847 QETH_OUT_Q_UNLOCKED
);
2851 EXPORT_SYMBOL_GPL(qeth_init_qdio_queues
);
2853 static __u8
qeth_get_ipa_adp_type(enum qeth_link_types link_type
)
2855 switch (link_type
) {
2856 case QETH_LINK_TYPE_HSTR
:
2863 static void qeth_fill_ipacmd_header(struct qeth_card
*card
,
2864 struct qeth_ipa_cmd
*cmd
, __u8 command
,
2865 enum qeth_prot_versions prot
)
2867 memset(cmd
, 0, sizeof(struct qeth_ipa_cmd
));
2868 cmd
->hdr
.command
= command
;
2869 cmd
->hdr
.initiator
= IPA_CMD_INITIATOR_HOST
;
2870 cmd
->hdr
.seqno
= card
->seqno
.ipa
;
2871 cmd
->hdr
.adapter_type
= qeth_get_ipa_adp_type(card
->info
.link_type
);
2872 cmd
->hdr
.rel_adapter_no
= (__u8
) card
->info
.portno
;
2873 if (card
->options
.layer2
)
2874 cmd
->hdr
.prim_version_no
= 2;
2876 cmd
->hdr
.prim_version_no
= 1;
2877 cmd
->hdr
.param_count
= 1;
2878 cmd
->hdr
.prot_version
= prot
;
2879 cmd
->hdr
.ipa_supported
= 0;
2880 cmd
->hdr
.ipa_enabled
= 0;
2883 struct qeth_cmd_buffer
*qeth_get_ipacmd_buffer(struct qeth_card
*card
,
2884 enum qeth_ipa_cmds ipacmd
, enum qeth_prot_versions prot
)
2886 struct qeth_cmd_buffer
*iob
;
2887 struct qeth_ipa_cmd
*cmd
;
2889 iob
= qeth_get_buffer(&card
->write
);
2891 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
2892 qeth_fill_ipacmd_header(card
, cmd
, ipacmd
, prot
);
2894 dev_warn(&card
->gdev
->dev
,
2895 "The qeth driver ran out of channel command buffers\n");
2896 QETH_DBF_MESSAGE(1, "%s The qeth driver ran out of channel command buffers",
2897 dev_name(&card
->gdev
->dev
));
2902 EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer
);
2904 void qeth_prepare_ipa_cmd(struct qeth_card
*card
, struct qeth_cmd_buffer
*iob
,
2907 memcpy(iob
->data
, IPA_PDU_HEADER
, IPA_PDU_HEADER_SIZE
);
2908 memcpy(QETH_IPA_CMD_PROT_TYPE(iob
->data
), &prot_type
, 1);
2909 memcpy(QETH_IPA_CMD_DEST_ADDR(iob
->data
),
2910 &card
->token
.ulp_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2912 EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd
);
2915 * qeth_send_ipa_cmd() - send an IPA command
2917 * See qeth_send_control_data() for explanation of the arguments.
2920 int qeth_send_ipa_cmd(struct qeth_card
*card
, struct qeth_cmd_buffer
*iob
,
2921 int (*reply_cb
)(struct qeth_card
*, struct qeth_reply
*,
2928 QETH_CARD_TEXT(card
, 4, "sendipa");
2930 if (card
->options
.layer2
)
2931 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
2932 prot_type
= QETH_PROT_OSN2
;
2934 prot_type
= QETH_PROT_LAYER2
;
2936 prot_type
= QETH_PROT_TCPIP
;
2937 qeth_prepare_ipa_cmd(card
, iob
, prot_type
);
2938 rc
= qeth_send_control_data(card
, IPA_CMD_LENGTH
,
2939 iob
, reply_cb
, reply_param
);
2941 qeth_clear_ipacmd_list(card
);
2942 qeth_schedule_recovery(card
);
2946 EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd
);
2948 static int qeth_send_startlan(struct qeth_card
*card
)
2951 struct qeth_cmd_buffer
*iob
;
2953 QETH_DBF_TEXT(SETUP
, 2, "strtlan");
2955 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_STARTLAN
, 0);
2958 rc
= qeth_send_ipa_cmd(card
, iob
, NULL
, NULL
);
2962 static int qeth_default_setadapterparms_cb(struct qeth_card
*card
,
2963 struct qeth_reply
*reply
, unsigned long data
)
2965 struct qeth_ipa_cmd
*cmd
;
2967 QETH_CARD_TEXT(card
, 4, "defadpcb");
2969 cmd
= (struct qeth_ipa_cmd
*) data
;
2970 if (cmd
->hdr
.return_code
== 0)
2971 cmd
->hdr
.return_code
=
2972 cmd
->data
.setadapterparms
.hdr
.return_code
;
2976 static int qeth_query_setadapterparms_cb(struct qeth_card
*card
,
2977 struct qeth_reply
*reply
, unsigned long data
)
2979 struct qeth_ipa_cmd
*cmd
;
2981 QETH_CARD_TEXT(card
, 3, "quyadpcb");
2983 cmd
= (struct qeth_ipa_cmd
*) data
;
2984 if (cmd
->data
.setadapterparms
.data
.query_cmds_supp
.lan_type
& 0x7f) {
2985 card
->info
.link_type
=
2986 cmd
->data
.setadapterparms
.data
.query_cmds_supp
.lan_type
;
2987 QETH_DBF_TEXT_(SETUP
, 2, "lnk %d", card
->info
.link_type
);
2989 card
->options
.adp
.supported_funcs
=
2990 cmd
->data
.setadapterparms
.data
.query_cmds_supp
.supported_cmds
;
2991 return qeth_default_setadapterparms_cb(card
, reply
, (unsigned long)cmd
);
2994 static struct qeth_cmd_buffer
*qeth_get_adapter_cmd(struct qeth_card
*card
,
2995 __u32 command
, __u32 cmdlen
)
2997 struct qeth_cmd_buffer
*iob
;
2998 struct qeth_ipa_cmd
*cmd
;
3000 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_SETADAPTERPARMS
,
3003 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
3004 cmd
->data
.setadapterparms
.hdr
.cmdlength
= cmdlen
;
3005 cmd
->data
.setadapterparms
.hdr
.command_code
= command
;
3006 cmd
->data
.setadapterparms
.hdr
.used_total
= 1;
3007 cmd
->data
.setadapterparms
.hdr
.seq_no
= 1;
3013 int qeth_query_setadapterparms(struct qeth_card
*card
)
3016 struct qeth_cmd_buffer
*iob
;
3018 QETH_CARD_TEXT(card
, 3, "queryadp");
3019 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_QUERY_COMMANDS_SUPPORTED
,
3020 sizeof(struct qeth_ipacmd_setadpparms
));
3023 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_query_setadapterparms_cb
, NULL
);
3026 EXPORT_SYMBOL_GPL(qeth_query_setadapterparms
);
3028 static int qeth_query_ipassists_cb(struct qeth_card
*card
,
3029 struct qeth_reply
*reply
, unsigned long data
)
3031 struct qeth_ipa_cmd
*cmd
;
3033 QETH_DBF_TEXT(SETUP
, 2, "qipasscb");
3035 cmd
= (struct qeth_ipa_cmd
*) data
;
3037 switch (cmd
->hdr
.return_code
) {
3038 case IPA_RC_NOTSUPP
:
3039 case IPA_RC_L2_UNSUPPORTED_CMD
:
3040 QETH_DBF_TEXT(SETUP
, 2, "ipaunsup");
3041 card
->options
.ipa4
.supported_funcs
|= IPA_SETADAPTERPARMS
;
3042 card
->options
.ipa6
.supported_funcs
|= IPA_SETADAPTERPARMS
;
3045 if (cmd
->hdr
.return_code
) {
3046 QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Unhandled "
3048 dev_name(&card
->gdev
->dev
),
3049 cmd
->hdr
.return_code
);
3054 if (cmd
->hdr
.prot_version
== QETH_PROT_IPV4
) {
3055 card
->options
.ipa4
.supported_funcs
= cmd
->hdr
.ipa_supported
;
3056 card
->options
.ipa4
.enabled_funcs
= cmd
->hdr
.ipa_enabled
;
3057 } else if (cmd
->hdr
.prot_version
== QETH_PROT_IPV6
) {
3058 card
->options
.ipa6
.supported_funcs
= cmd
->hdr
.ipa_supported
;
3059 card
->options
.ipa6
.enabled_funcs
= cmd
->hdr
.ipa_enabled
;
3061 QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Flawed LIC detected"
3062 "\n", dev_name(&card
->gdev
->dev
));
3066 int qeth_query_ipassists(struct qeth_card
*card
, enum qeth_prot_versions prot
)
3069 struct qeth_cmd_buffer
*iob
;
3071 QETH_DBF_TEXT_(SETUP
, 2, "qipassi%i", prot
);
3072 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_QIPASSIST
, prot
);
3075 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_query_ipassists_cb
, NULL
);
3078 EXPORT_SYMBOL_GPL(qeth_query_ipassists
);
3080 static int qeth_query_switch_attributes_cb(struct qeth_card
*card
,
3081 struct qeth_reply
*reply
, unsigned long data
)
3083 struct qeth_ipa_cmd
*cmd
;
3084 struct qeth_switch_info
*sw_info
;
3085 struct qeth_query_switch_attributes
*attrs
;
3087 QETH_CARD_TEXT(card
, 2, "qswiatcb");
3088 cmd
= (struct qeth_ipa_cmd
*) data
;
3089 sw_info
= (struct qeth_switch_info
*)reply
->param
;
3090 if (cmd
->data
.setadapterparms
.hdr
.return_code
== 0) {
3091 attrs
= &cmd
->data
.setadapterparms
.data
.query_switch_attributes
;
3092 sw_info
->capabilities
= attrs
->capabilities
;
3093 sw_info
->settings
= attrs
->settings
;
3094 QETH_CARD_TEXT_(card
, 2, "%04x%04x", sw_info
->capabilities
,
3097 qeth_default_setadapterparms_cb(card
, reply
, (unsigned long) cmd
);
3102 int qeth_query_switch_attributes(struct qeth_card
*card
,
3103 struct qeth_switch_info
*sw_info
)
3105 struct qeth_cmd_buffer
*iob
;
3107 QETH_CARD_TEXT(card
, 2, "qswiattr");
3108 if (!qeth_adp_supported(card
, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES
))
3110 if (!netif_carrier_ok(card
->dev
))
3112 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES
,
3113 sizeof(struct qeth_ipacmd_setadpparms_hdr
));
3116 return qeth_send_ipa_cmd(card
, iob
,
3117 qeth_query_switch_attributes_cb
, sw_info
);
3119 EXPORT_SYMBOL_GPL(qeth_query_switch_attributes
);
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
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
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
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
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 rc
= do_QDIO(CARD_DDEV(queue
->card
), qdio_flags
,
3470 queue
->queue_no
, index
, count
);
3471 if (queue
->card
->options
.performance_stats
)
3472 queue
->card
->perf_stats
.outbound_do_qdio_time
+=
3474 queue
->card
->perf_stats
.outbound_do_qdio_start_time
;
3475 atomic_add(count
, &queue
->used_buffers
);
3477 queue
->card
->stats
.tx_errors
+= count
;
3478 /* ignore temporary SIGA errors without busy condition */
3481 QETH_CARD_TEXT(queue
->card
, 2, "flushbuf");
3482 QETH_CARD_TEXT_(queue
->card
, 2, " q%d", queue
->queue_no
);
3483 QETH_CARD_TEXT_(queue
->card
, 2, " idx%d", index
);
3484 QETH_CARD_TEXT_(queue
->card
, 2, " c%d", count
);
3485 QETH_CARD_TEXT_(queue
->card
, 2, " err%d", rc
);
3487 /* this must not happen under normal circumstances. if it
3488 * happens something is really wrong -> recover */
3489 qeth_schedule_recovery(queue
->card
);
3492 if (queue
->card
->options
.performance_stats
)
3493 queue
->card
->perf_stats
.bufs_sent
+= count
;
3496 static void qeth_check_outbound_queue(struct qeth_qdio_out_q
*queue
)
3500 int q_was_packing
= 0;
3503 * check if weed have to switch to non-packing mode or if
3504 * we have to get a pci flag out on the queue
3506 if ((atomic_read(&queue
->used_buffers
) <= QETH_LOW_WATERMARK_PACK
) ||
3507 !atomic_read(&queue
->set_pci_flags_count
)) {
3508 if (atomic_xchg(&queue
->state
, QETH_OUT_Q_LOCKED_FLUSH
) ==
3509 QETH_OUT_Q_UNLOCKED
) {
3511 * If we get in here, there was no action in
3512 * do_send_packet. So, we check if there is a
3513 * packing buffer to be flushed here.
3515 netif_stop_queue(queue
->card
->dev
);
3516 index
= queue
->next_buf_to_fill
;
3517 q_was_packing
= queue
->do_pack
;
3518 /* queue->do_pack may change */
3520 flush_cnt
+= qeth_switch_to_nonpacking_if_needed(queue
);
3522 !atomic_read(&queue
->set_pci_flags_count
))
3523 flush_cnt
+= qeth_prep_flush_pack_buffer(queue
);
3524 if (queue
->card
->options
.performance_stats
&&
3526 queue
->card
->perf_stats
.bufs_sent_pack
+=
3529 qeth_flush_buffers(queue
, index
, flush_cnt
);
3530 atomic_set(&queue
->state
, QETH_OUT_Q_UNLOCKED
);
3535 void qeth_qdio_start_poll(struct ccw_device
*ccwdev
, int queue
,
3536 unsigned long card_ptr
)
3538 struct qeth_card
*card
= (struct qeth_card
*)card_ptr
;
3540 if (card
->dev
&& (card
->dev
->flags
& IFF_UP
))
3541 napi_schedule(&card
->napi
);
3543 EXPORT_SYMBOL_GPL(qeth_qdio_start_poll
);
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
);
3575 static void qeth_qdio_cq_handler(struct qeth_card
*card
,
3576 unsigned int qdio_err
,
3577 unsigned int queue
, int first_element
, int count
) {
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
];
3606 while ((e
< QDIO_MAX_ELEMENTS_PER_BUFFER
) &&
3607 buffer
->element
[e
].addr
) {
3608 unsigned long phys_aob_addr
;
3610 phys_aob_addr
= (unsigned long) buffer
->element
[e
].addr
;
3611 qeth_qdio_handle_aob(card
, phys_aob_addr
);
3612 buffer
->element
[e
].addr
= NULL
;
3613 buffer
->element
[e
].eflags
= 0;
3614 buffer
->element
[e
].sflags
= 0;
3615 buffer
->element
[e
].length
= 0;
3620 buffer
->element
[15].eflags
= 0;
3621 buffer
->element
[15].sflags
= 0;
3623 rc
= do_QDIO(CARD_DDEV(card
), QDIO_FLAG_SYNC_INPUT
, queue
,
3624 card
->qdio
.c_q
->next_buf_to_init
,
3627 dev_warn(&card
->gdev
->dev
,
3628 "QDIO reported an error, rc=%i\n", rc
);
3629 QETH_CARD_TEXT(card
, 2, "qcqherr");
3631 card
->qdio
.c_q
->next_buf_to_init
= (card
->qdio
.c_q
->next_buf_to_init
3632 + count
) % QDIO_MAX_BUFFERS_PER_Q
;
3634 netif_wake_queue(card
->dev
);
3636 if (card
->options
.performance_stats
) {
3637 int delta_t
= qeth_get_micros();
3638 delta_t
-= card
->perf_stats
.cq_start_time
;
3639 card
->perf_stats
.cq_time
+= delta_t
;
3645 void qeth_qdio_input_handler(struct ccw_device
*ccwdev
, unsigned int qdio_err
,
3646 unsigned int queue
, int first_elem
, int count
,
3647 unsigned long card_ptr
)
3649 struct qeth_card
*card
= (struct qeth_card
*)card_ptr
;
3651 QETH_CARD_TEXT_(card
, 2, "qihq%d", queue
);
3652 QETH_CARD_TEXT_(card
, 2, "qiec%d", qdio_err
);
3654 if (qeth_is_cq(card
, queue
))
3655 qeth_qdio_cq_handler(card
, qdio_err
, queue
, first_elem
, count
);
3657 qeth_schedule_recovery(card
);
3661 EXPORT_SYMBOL_GPL(qeth_qdio_input_handler
);
3663 void qeth_qdio_output_handler(struct ccw_device
*ccwdev
,
3664 unsigned int qdio_error
, int __queue
, int first_element
,
3665 int count
, unsigned long card_ptr
)
3667 struct qeth_card
*card
= (struct qeth_card
*) card_ptr
;
3668 struct qeth_qdio_out_q
*queue
= card
->qdio
.out_qs
[__queue
];
3669 struct qeth_qdio_out_buffer
*buffer
;
3672 QETH_CARD_TEXT(card
, 6, "qdouhdl");
3673 if (qdio_error
& QDIO_ERROR_FATAL
) {
3674 QETH_CARD_TEXT(card
, 2, "achkcond");
3675 netif_stop_queue(card
->dev
);
3676 qeth_schedule_recovery(card
);
3679 if (card
->options
.performance_stats
) {
3680 card
->perf_stats
.outbound_handler_cnt
++;
3681 card
->perf_stats
.outbound_handler_start_time
=
3684 for (i
= first_element
; i
< (first_element
+ count
); ++i
) {
3685 int bidx
= i
% QDIO_MAX_BUFFERS_PER_Q
;
3686 buffer
= queue
->bufs
[bidx
];
3687 qeth_handle_send_error(card
, buffer
, qdio_error
);
3689 if (queue
->bufstates
&&
3690 (queue
->bufstates
[bidx
].flags
&
3691 QDIO_OUTBUF_STATE_FLAG_PENDING
) != 0) {
3692 WARN_ON_ONCE(card
->options
.cq
!= QETH_CQ_ENABLED
);
3694 if (atomic_cmpxchg(&buffer
->state
,
3695 QETH_QDIO_BUF_PRIMED
,
3696 QETH_QDIO_BUF_PENDING
) ==
3697 QETH_QDIO_BUF_PRIMED
) {
3698 qeth_notify_skbs(queue
, buffer
,
3701 buffer
->aob
= queue
->bufstates
[bidx
].aob
;
3702 QETH_CARD_TEXT_(queue
->card
, 5, "pel%d", bidx
);
3703 QETH_CARD_TEXT(queue
->card
, 5, "aob");
3704 QETH_CARD_TEXT_(queue
->card
, 5, "%lx",
3705 virt_to_phys(buffer
->aob
));
3706 if (qeth_init_qdio_out_buf(queue
, bidx
)) {
3707 QETH_CARD_TEXT(card
, 2, "outofbuf");
3708 qeth_schedule_recovery(card
);
3711 if (card
->options
.cq
== QETH_CQ_ENABLED
) {
3712 enum iucv_tx_notify n
;
3714 n
= qeth_compute_cq_notification(
3715 buffer
->buffer
->element
[15].sflags
, 0);
3716 qeth_notify_skbs(queue
, buffer
, n
);
3719 qeth_clear_output_buffer(queue
, buffer
,
3720 QETH_QDIO_BUF_EMPTY
);
3722 qeth_cleanup_handled_pending(queue
, bidx
, 0);
3724 atomic_sub(count
, &queue
->used_buffers
);
3725 /* check if we need to do something on this outbound queue */
3726 if (card
->info
.type
!= QETH_CARD_TYPE_IQD
)
3727 qeth_check_outbound_queue(queue
);
3729 netif_wake_queue(queue
->card
->dev
);
3730 if (card
->options
.performance_stats
)
3731 card
->perf_stats
.outbound_handler_time
+= qeth_get_micros() -
3732 card
->perf_stats
.outbound_handler_start_time
;
3734 EXPORT_SYMBOL_GPL(qeth_qdio_output_handler
);
3736 /* We cannot use outbound queue 3 for unicast packets on HiperSockets */
3737 static inline int qeth_cut_iqd_prio(struct qeth_card
*card
, int queue_num
)
3739 if ((card
->info
.type
== QETH_CARD_TYPE_IQD
) && (queue_num
== 3))
3745 * Note: Function assumes that we have 4 outbound queues.
3747 int qeth_get_priority_queue(struct qeth_card
*card
, struct sk_buff
*skb
,
3748 int ipv
, int cast_type
)
3753 if (cast_type
&& card
->info
.is_multicast_different
)
3754 return card
->info
.is_multicast_different
&
3755 (card
->qdio
.no_out_queues
- 1);
3757 switch (card
->qdio
.do_prio_queueing
) {
3758 case QETH_PRIO_Q_ING_TOS
:
3759 case QETH_PRIO_Q_ING_PREC
:
3762 tos
= ipv4_get_dsfield(ip_hdr(skb
));
3765 tos
= ipv6_get_dsfield(ipv6_hdr(skb
));
3768 return card
->qdio
.default_out_queue
;
3770 if (card
->qdio
.do_prio_queueing
== QETH_PRIO_Q_ING_PREC
)
3771 return qeth_cut_iqd_prio(card
, ~tos
>> 6 & 3);
3772 if (tos
& IPTOS_MINCOST
)
3773 return qeth_cut_iqd_prio(card
, 3);
3774 if (tos
& IPTOS_RELIABILITY
)
3776 if (tos
& IPTOS_THROUGHPUT
)
3778 if (tos
& IPTOS_LOWDELAY
)
3781 case QETH_PRIO_Q_ING_SKB
:
3782 if (skb
->priority
> 5)
3784 return qeth_cut_iqd_prio(card
, ~skb
->priority
>> 1 & 3);
3785 case QETH_PRIO_Q_ING_VLAN
:
3786 tci
= &((struct ethhdr
*)skb
->data
)->h_proto
;
3787 if (be16_to_cpu(*tci
) == ETH_P_8021Q
)
3788 return qeth_cut_iqd_prio(card
,
3789 ~be16_to_cpu(*(tci
+ 1)) >> (VLAN_PRIO_SHIFT
+ 1) & 3);
3794 return card
->qdio
.default_out_queue
;
3796 EXPORT_SYMBOL_GPL(qeth_get_priority_queue
);
3799 * qeth_get_elements_for_frags() - find number of SBALEs for skb frags.
3802 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
3803 * fragmented part of the SKB. Returns zero for linear SKB.
3805 int qeth_get_elements_for_frags(struct sk_buff
*skb
)
3807 int cnt
, elements
= 0;
3809 for (cnt
= 0; cnt
< skb_shinfo(skb
)->nr_frags
; cnt
++) {
3810 struct skb_frag_struct
*frag
= &skb_shinfo(skb
)->frags
[cnt
];
3812 elements
+= qeth_get_elements_for_range(
3813 (addr_t
)skb_frag_address(frag
),
3814 (addr_t
)skb_frag_address(frag
) + skb_frag_size(frag
));
3818 EXPORT_SYMBOL_GPL(qeth_get_elements_for_frags
);
3821 * qeth_get_elements_no() - find number of SBALEs for skb data, inc. frags.
3822 * @card: qeth card structure, to check max. elems.
3824 * @extra_elems: extra elems needed, to check against max.
3825 * @data_offset: range starts at skb->data + data_offset
3827 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
3828 * skb data, including linear part and fragments. Checks if the result plus
3829 * extra_elems fits under the limit for the card. Returns 0 if it does not.
3830 * Note: extra_elems is not included in the returned result.
3832 int qeth_get_elements_no(struct qeth_card
*card
,
3833 struct sk_buff
*skb
, int extra_elems
, int data_offset
)
3835 int elements
= qeth_get_elements_for_range(
3836 (addr_t
)skb
->data
+ data_offset
,
3837 (addr_t
)skb
->data
+ skb_headlen(skb
)) +
3838 qeth_get_elements_for_frags(skb
);
3840 if ((elements
+ extra_elems
) > QETH_MAX_BUFFER_ELEMENTS(card
)) {
3841 QETH_DBF_MESSAGE(2, "Invalid size of IP packet "
3842 "(Number=%d / Length=%d). Discarded.\n",
3843 elements
+ extra_elems
, skb
->len
);
3848 EXPORT_SYMBOL_GPL(qeth_get_elements_no
);
3850 int qeth_hdr_chk_and_bounce(struct sk_buff
*skb
, struct qeth_hdr
**hdr
, int len
)
3852 int hroom
, inpage
, rest
;
3854 if (((unsigned long)skb
->data
& PAGE_MASK
) !=
3855 (((unsigned long)skb
->data
+ len
- 1) & PAGE_MASK
)) {
3856 hroom
= skb_headroom(skb
);
3857 inpage
= PAGE_SIZE
- ((unsigned long) skb
->data
% PAGE_SIZE
);
3858 rest
= len
- inpage
;
3861 memmove(skb
->data
- rest
, skb
->data
, skb_headlen(skb
));
3864 *hdr
= (struct qeth_hdr
*)skb
->data
;
3865 QETH_DBF_MESSAGE(2, "skb bounce len: %d rest: %d\n", len
, rest
);
3869 EXPORT_SYMBOL_GPL(qeth_hdr_chk_and_bounce
);
3872 * qeth_push_hdr() - push a qeth_hdr onto an skb.
3873 * @skb: skb that the qeth_hdr should be pushed onto.
3874 * @hdr: double pointer to a qeth_hdr. When returning with >= 0,
3875 * it contains a valid pointer to a qeth_hdr.
3876 * @len: length of the hdr that needs to be pushed on.
3878 * Returns the pushed length. If the header can't be pushed on
3879 * (eg. because it would cross a page boundary), it is allocated from
3880 * the cache instead and 0 is returned.
3881 * Error to create the hdr is indicated by returning with < 0.
3883 int qeth_push_hdr(struct sk_buff
*skb
, struct qeth_hdr
**hdr
, unsigned int len
)
3885 if (skb_headroom(skb
) >= len
&&
3886 qeth_get_elements_for_range((addr_t
)skb
->data
- len
,
3887 (addr_t
)skb
->data
) == 1) {
3888 *hdr
= skb_push(skb
, len
);
3892 *hdr
= kmem_cache_alloc(qeth_core_header_cache
, GFP_ATOMIC
);
3897 EXPORT_SYMBOL_GPL(qeth_push_hdr
);
3899 static void __qeth_fill_buffer(struct sk_buff
*skb
,
3900 struct qeth_qdio_out_buffer
*buf
,
3901 bool is_first_elem
, unsigned int offset
)
3903 struct qdio_buffer
*buffer
= buf
->buffer
;
3904 int element
= buf
->next_element_to_fill
;
3905 int length
= skb_headlen(skb
) - offset
;
3906 char *data
= skb
->data
+ offset
;
3907 int length_here
, cnt
;
3909 /* map linear part into buffer element(s) */
3910 while (length
> 0) {
3911 /* length_here is the remaining amount of data in this page */
3912 length_here
= PAGE_SIZE
- ((unsigned long) data
% PAGE_SIZE
);
3913 if (length
< length_here
)
3914 length_here
= length
;
3916 buffer
->element
[element
].addr
= data
;
3917 buffer
->element
[element
].length
= length_here
;
3918 length
-= length_here
;
3919 if (is_first_elem
) {
3920 is_first_elem
= false;
3921 if (length
|| skb_is_nonlinear(skb
))
3922 /* skb needs additional elements */
3923 buffer
->element
[element
].eflags
=
3924 SBAL_EFLAGS_FIRST_FRAG
;
3926 buffer
->element
[element
].eflags
= 0;
3928 buffer
->element
[element
].eflags
=
3929 SBAL_EFLAGS_MIDDLE_FRAG
;
3931 data
+= length_here
;
3935 /* map page frags into buffer element(s) */
3936 for (cnt
= 0; cnt
< skb_shinfo(skb
)->nr_frags
; cnt
++) {
3937 skb_frag_t
*frag
= &skb_shinfo(skb
)->frags
[cnt
];
3939 data
= skb_frag_address(frag
);
3940 length
= skb_frag_size(frag
);
3941 while (length
> 0) {
3942 length_here
= PAGE_SIZE
-
3943 ((unsigned long) data
% PAGE_SIZE
);
3944 if (length
< length_here
)
3945 length_here
= length
;
3947 buffer
->element
[element
].addr
= data
;
3948 buffer
->element
[element
].length
= length_here
;
3949 buffer
->element
[element
].eflags
=
3950 SBAL_EFLAGS_MIDDLE_FRAG
;
3951 length
-= length_here
;
3952 data
+= length_here
;
3957 if (buffer
->element
[element
- 1].eflags
)
3958 buffer
->element
[element
- 1].eflags
= SBAL_EFLAGS_LAST_FRAG
;
3959 buf
->next_element_to_fill
= element
;
3963 * qeth_fill_buffer() - map skb into an output buffer
3964 * @queue: QDIO queue to submit the buffer on
3965 * @buf: buffer to transport the skb
3966 * @skb: skb to map into the buffer
3967 * @hdr: qeth_hdr for this skb. Either at skb->data, or allocated
3968 * from qeth_core_header_cache.
3969 * @offset: when mapping the skb, start at skb->data + offset
3970 * @hd_len: if > 0, build a dedicated header element of this size
3972 static int qeth_fill_buffer(struct qeth_qdio_out_q
*queue
,
3973 struct qeth_qdio_out_buffer
*buf
,
3974 struct sk_buff
*skb
, struct qeth_hdr
*hdr
,
3975 unsigned int offset
, unsigned int hd_len
)
3977 struct qdio_buffer
*buffer
= buf
->buffer
;
3978 bool is_first_elem
= true;
3981 refcount_inc(&skb
->users
);
3982 skb_queue_tail(&buf
->skb_list
, skb
);
3984 /* build dedicated header element */
3986 int element
= buf
->next_element_to_fill
;
3987 is_first_elem
= false;
3989 buffer
->element
[element
].addr
= hdr
;
3990 buffer
->element
[element
].length
= hd_len
;
3991 buffer
->element
[element
].eflags
= SBAL_EFLAGS_FIRST_FRAG
;
3992 /* remember to free cache-allocated qeth_hdr: */
3993 buf
->is_header
[element
] = ((void *)hdr
!= skb
->data
);
3994 buf
->next_element_to_fill
++;
3997 __qeth_fill_buffer(skb
, buf
, is_first_elem
, offset
);
3999 if (!queue
->do_pack
) {
4000 QETH_CARD_TEXT(queue
->card
, 6, "fillbfnp");
4001 /* set state to PRIMED -> will be flushed */
4002 atomic_set(&buf
->state
, QETH_QDIO_BUF_PRIMED
);
4005 QETH_CARD_TEXT(queue
->card
, 6, "fillbfpa");
4006 if (queue
->card
->options
.performance_stats
)
4007 queue
->card
->perf_stats
.skbs_sent_pack
++;
4008 if (buf
->next_element_to_fill
>=
4009 QETH_MAX_BUFFER_ELEMENTS(queue
->card
)) {
4011 * packed buffer if full -> set state PRIMED
4012 * -> will be flushed
4014 atomic_set(&buf
->state
, QETH_QDIO_BUF_PRIMED
);
4021 int qeth_do_send_packet_fast(struct qeth_qdio_out_q
*queue
, struct sk_buff
*skb
,
4022 struct qeth_hdr
*hdr
, unsigned int offset
,
4023 unsigned int hd_len
)
4025 int index
= queue
->next_buf_to_fill
;
4026 struct qeth_qdio_out_buffer
*buffer
= queue
->bufs
[index
];
4029 * check if buffer is empty to make sure that we do not 'overtake'
4030 * ourselves and try to fill a buffer that is already primed
4032 if (atomic_read(&buffer
->state
) != QETH_QDIO_BUF_EMPTY
)
4034 queue
->next_buf_to_fill
= (index
+ 1) % QDIO_MAX_BUFFERS_PER_Q
;
4035 qeth_fill_buffer(queue
, buffer
, skb
, hdr
, offset
, hd_len
);
4036 qeth_flush_buffers(queue
, index
, 1);
4039 EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast
);
4041 int qeth_do_send_packet(struct qeth_card
*card
, struct qeth_qdio_out_q
*queue
,
4042 struct sk_buff
*skb
, struct qeth_hdr
*hdr
,
4043 unsigned int offset
, unsigned int hd_len
,
4044 int elements_needed
)
4046 struct qeth_qdio_out_buffer
*buffer
;
4048 int flush_count
= 0;
4053 /* spin until we get the queue ... */
4054 while (atomic_cmpxchg(&queue
->state
, QETH_OUT_Q_UNLOCKED
,
4055 QETH_OUT_Q_LOCKED
) != QETH_OUT_Q_UNLOCKED
);
4056 start_index
= queue
->next_buf_to_fill
;
4057 buffer
= queue
->bufs
[queue
->next_buf_to_fill
];
4059 * check if buffer is empty to make sure that we do not 'overtake'
4060 * ourselves and try to fill a buffer that is already primed
4062 if (atomic_read(&buffer
->state
) != QETH_QDIO_BUF_EMPTY
) {
4063 atomic_set(&queue
->state
, QETH_OUT_Q_UNLOCKED
);
4066 /* check if we need to switch packing state of this queue */
4067 qeth_switch_to_packing_if_needed(queue
);
4068 if (queue
->do_pack
) {
4070 /* does packet fit in current buffer? */
4071 if ((QETH_MAX_BUFFER_ELEMENTS(card
) -
4072 buffer
->next_element_to_fill
) < elements_needed
) {
4073 /* ... no -> set state PRIMED */
4074 atomic_set(&buffer
->state
, QETH_QDIO_BUF_PRIMED
);
4076 queue
->next_buf_to_fill
=
4077 (queue
->next_buf_to_fill
+ 1) %
4078 QDIO_MAX_BUFFERS_PER_Q
;
4079 buffer
= queue
->bufs
[queue
->next_buf_to_fill
];
4080 /* we did a step forward, so check buffer state
4082 if (atomic_read(&buffer
->state
) !=
4083 QETH_QDIO_BUF_EMPTY
) {
4084 qeth_flush_buffers(queue
, start_index
,
4086 atomic_set(&queue
->state
,
4087 QETH_OUT_Q_UNLOCKED
);
4093 tmp
= qeth_fill_buffer(queue
, buffer
, skb
, hdr
, offset
, hd_len
);
4094 queue
->next_buf_to_fill
= (queue
->next_buf_to_fill
+ tmp
) %
4095 QDIO_MAX_BUFFERS_PER_Q
;
4098 qeth_flush_buffers(queue
, start_index
, flush_count
);
4099 else if (!atomic_read(&queue
->set_pci_flags_count
))
4100 atomic_xchg(&queue
->state
, QETH_OUT_Q_LOCKED_FLUSH
);
4102 * queue->state will go from LOCKED -> UNLOCKED or from
4103 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4104 * (switch packing state or flush buffer to get another pci flag out).
4105 * In that case we will enter this loop
4107 while (atomic_dec_return(&queue
->state
)) {
4108 start_index
= queue
->next_buf_to_fill
;
4109 /* check if we can go back to non-packing state */
4110 tmp
= qeth_switch_to_nonpacking_if_needed(queue
);
4112 * check if we need to flush a packing buffer to get a pci
4113 * flag out on the queue
4115 if (!tmp
&& !atomic_read(&queue
->set_pci_flags_count
))
4116 tmp
= qeth_prep_flush_pack_buffer(queue
);
4118 qeth_flush_buffers(queue
, start_index
, tmp
);
4123 /* at this point the queue is UNLOCKED again */
4124 if (queue
->card
->options
.performance_stats
&& do_pack
)
4125 queue
->card
->perf_stats
.bufs_sent_pack
+= flush_count
;
4129 EXPORT_SYMBOL_GPL(qeth_do_send_packet
);
4131 static int qeth_setadp_promisc_mode_cb(struct qeth_card
*card
,
4132 struct qeth_reply
*reply
, unsigned long data
)
4134 struct qeth_ipa_cmd
*cmd
;
4135 struct qeth_ipacmd_setadpparms
*setparms
;
4137 QETH_CARD_TEXT(card
, 4, "prmadpcb");
4139 cmd
= (struct qeth_ipa_cmd
*) data
;
4140 setparms
= &(cmd
->data
.setadapterparms
);
4142 qeth_default_setadapterparms_cb(card
, reply
, (unsigned long)cmd
);
4143 if (cmd
->hdr
.return_code
) {
4144 QETH_CARD_TEXT_(card
, 4, "prmrc%x", cmd
->hdr
.return_code
);
4145 setparms
->data
.mode
= SET_PROMISC_MODE_OFF
;
4147 card
->info
.promisc_mode
= setparms
->data
.mode
;
4151 void qeth_setadp_promisc_mode(struct qeth_card
*card
)
4153 enum qeth_ipa_promisc_modes mode
;
4154 struct net_device
*dev
= card
->dev
;
4155 struct qeth_cmd_buffer
*iob
;
4156 struct qeth_ipa_cmd
*cmd
;
4158 QETH_CARD_TEXT(card
, 4, "setprom");
4160 if (((dev
->flags
& IFF_PROMISC
) &&
4161 (card
->info
.promisc_mode
== SET_PROMISC_MODE_ON
)) ||
4162 (!(dev
->flags
& IFF_PROMISC
) &&
4163 (card
->info
.promisc_mode
== SET_PROMISC_MODE_OFF
)))
4165 mode
= SET_PROMISC_MODE_OFF
;
4166 if (dev
->flags
& IFF_PROMISC
)
4167 mode
= SET_PROMISC_MODE_ON
;
4168 QETH_CARD_TEXT_(card
, 4, "mode:%x", mode
);
4170 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_SET_PROMISC_MODE
,
4171 sizeof(struct qeth_ipacmd_setadpparms_hdr
) + 8);
4174 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+ IPA_PDU_HEADER_SIZE
);
4175 cmd
->data
.setadapterparms
.data
.mode
= mode
;
4176 qeth_send_ipa_cmd(card
, iob
, qeth_setadp_promisc_mode_cb
, NULL
);
4178 EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode
);
4180 int qeth_change_mtu(struct net_device
*dev
, int new_mtu
)
4182 struct qeth_card
*card
;
4185 card
= dev
->ml_priv
;
4187 QETH_CARD_TEXT(card
, 4, "chgmtu");
4188 sprintf(dbf_text
, "%8x", new_mtu
);
4189 QETH_CARD_TEXT(card
, 4, dbf_text
);
4191 if (!qeth_mtu_is_valid(card
, new_mtu
))
4196 EXPORT_SYMBOL_GPL(qeth_change_mtu
);
4198 struct net_device_stats
*qeth_get_stats(struct net_device
*dev
)
4200 struct qeth_card
*card
;
4202 card
= dev
->ml_priv
;
4204 QETH_CARD_TEXT(card
, 5, "getstat");
4206 return &card
->stats
;
4208 EXPORT_SYMBOL_GPL(qeth_get_stats
);
4210 static int qeth_setadpparms_change_macaddr_cb(struct qeth_card
*card
,
4211 struct qeth_reply
*reply
, unsigned long data
)
4213 struct qeth_ipa_cmd
*cmd
;
4215 QETH_CARD_TEXT(card
, 4, "chgmaccb");
4217 cmd
= (struct qeth_ipa_cmd
*) data
;
4218 if (!card
->options
.layer2
||
4219 !(card
->info
.mac_bits
& QETH_LAYER2_MAC_READ
)) {
4220 memcpy(card
->dev
->dev_addr
,
4221 &cmd
->data
.setadapterparms
.data
.change_addr
.addr
,
4223 card
->info
.mac_bits
|= QETH_LAYER2_MAC_READ
;
4225 qeth_default_setadapterparms_cb(card
, reply
, (unsigned long) cmd
);
4229 int qeth_setadpparms_change_macaddr(struct qeth_card
*card
)
4232 struct qeth_cmd_buffer
*iob
;
4233 struct qeth_ipa_cmd
*cmd
;
4235 QETH_CARD_TEXT(card
, 4, "chgmac");
4237 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_ALTER_MAC_ADDRESS
,
4238 sizeof(struct qeth_ipacmd_setadpparms_hdr
) +
4239 sizeof(struct qeth_change_addr
));
4242 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
4243 cmd
->data
.setadapterparms
.data
.change_addr
.cmd
= CHANGE_ADDR_READ_MAC
;
4244 cmd
->data
.setadapterparms
.data
.change_addr
.addr_size
= OSA_ADDR_LEN
;
4245 memcpy(&cmd
->data
.setadapterparms
.data
.change_addr
.addr
,
4246 card
->dev
->dev_addr
, OSA_ADDR_LEN
);
4247 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_setadpparms_change_macaddr_cb
,
4251 EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr
);
4253 static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card
*card
,
4254 struct qeth_reply
*reply
, unsigned long data
)
4256 struct qeth_ipa_cmd
*cmd
;
4257 struct qeth_set_access_ctrl
*access_ctrl_req
;
4258 int fallback
= *(int *)reply
->param
;
4260 QETH_CARD_TEXT(card
, 4, "setaccb");
4262 cmd
= (struct qeth_ipa_cmd
*) data
;
4263 access_ctrl_req
= &cmd
->data
.setadapterparms
.data
.set_access_ctrl
;
4264 QETH_DBF_TEXT_(SETUP
, 2, "setaccb");
4265 QETH_DBF_TEXT_(SETUP
, 2, "%s", card
->gdev
->dev
.kobj
.name
);
4266 QETH_DBF_TEXT_(SETUP
, 2, "rc=%d",
4267 cmd
->data
.setadapterparms
.hdr
.return_code
);
4268 if (cmd
->data
.setadapterparms
.hdr
.return_code
!=
4269 SET_ACCESS_CTRL_RC_SUCCESS
)
4270 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%s,%d)==%d\n",
4271 card
->gdev
->dev
.kobj
.name
,
4272 access_ctrl_req
->subcmd_code
,
4273 cmd
->data
.setadapterparms
.hdr
.return_code
);
4274 switch (cmd
->data
.setadapterparms
.hdr
.return_code
) {
4275 case SET_ACCESS_CTRL_RC_SUCCESS
:
4276 if (card
->options
.isolation
== ISOLATION_MODE_NONE
) {
4277 dev_info(&card
->gdev
->dev
,
4278 "QDIO data connection isolation is deactivated\n");
4280 dev_info(&card
->gdev
->dev
,
4281 "QDIO data connection isolation is activated\n");
4284 case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED
:
4285 QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already "
4286 "deactivated\n", dev_name(&card
->gdev
->dev
));
4288 card
->options
.isolation
= card
->options
.prev_isolation
;
4290 case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED
:
4291 QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already"
4292 " activated\n", dev_name(&card
->gdev
->dev
));
4294 card
->options
.isolation
= card
->options
.prev_isolation
;
4296 case SET_ACCESS_CTRL_RC_NOT_SUPPORTED
:
4297 dev_err(&card
->gdev
->dev
, "Adapter does not "
4298 "support QDIO data connection isolation\n");
4300 case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER
:
4301 dev_err(&card
->gdev
->dev
,
4302 "Adapter is dedicated. "
4303 "QDIO data connection isolation not supported\n");
4305 card
->options
.isolation
= card
->options
.prev_isolation
;
4307 case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF
:
4308 dev_err(&card
->gdev
->dev
,
4309 "TSO does not permit QDIO data connection isolation\n");
4311 card
->options
.isolation
= card
->options
.prev_isolation
;
4313 case SET_ACCESS_CTRL_RC_REFLREL_UNSUPPORTED
:
4314 dev_err(&card
->gdev
->dev
, "The adjacent switch port does not "
4315 "support reflective relay mode\n");
4317 card
->options
.isolation
= card
->options
.prev_isolation
;
4319 case SET_ACCESS_CTRL_RC_REFLREL_FAILED
:
4320 dev_err(&card
->gdev
->dev
, "The reflective relay mode cannot be "
4321 "enabled at the adjacent switch port");
4323 card
->options
.isolation
= card
->options
.prev_isolation
;
4325 case SET_ACCESS_CTRL_RC_REFLREL_DEACT_FAILED
:
4326 dev_warn(&card
->gdev
->dev
, "Turning off reflective relay mode "
4327 "at the adjacent switch failed\n");
4330 /* this should never happen */
4332 card
->options
.isolation
= card
->options
.prev_isolation
;
4335 qeth_default_setadapterparms_cb(card
, reply
, (unsigned long) cmd
);
4339 static int qeth_setadpparms_set_access_ctrl(struct qeth_card
*card
,
4340 enum qeth_ipa_isolation_modes isolation
, int fallback
)
4343 struct qeth_cmd_buffer
*iob
;
4344 struct qeth_ipa_cmd
*cmd
;
4345 struct qeth_set_access_ctrl
*access_ctrl_req
;
4347 QETH_CARD_TEXT(card
, 4, "setacctl");
4349 QETH_DBF_TEXT_(SETUP
, 2, "setacctl");
4350 QETH_DBF_TEXT_(SETUP
, 2, "%s", card
->gdev
->dev
.kobj
.name
);
4352 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_SET_ACCESS_CONTROL
,
4353 sizeof(struct qeth_ipacmd_setadpparms_hdr
) +
4354 sizeof(struct qeth_set_access_ctrl
));
4357 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
4358 access_ctrl_req
= &cmd
->data
.setadapterparms
.data
.set_access_ctrl
;
4359 access_ctrl_req
->subcmd_code
= isolation
;
4361 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_setadpparms_set_access_ctrl_cb
,
4363 QETH_DBF_TEXT_(SETUP
, 2, "rc=%d", rc
);
4367 int qeth_set_access_ctrl_online(struct qeth_card
*card
, int fallback
)
4371 QETH_CARD_TEXT(card
, 4, "setactlo");
4373 if ((card
->info
.type
== QETH_CARD_TYPE_OSD
||
4374 card
->info
.type
== QETH_CARD_TYPE_OSX
) &&
4375 qeth_adp_supported(card
, IPA_SETADP_SET_ACCESS_CONTROL
)) {
4376 rc
= qeth_setadpparms_set_access_ctrl(card
,
4377 card
->options
.isolation
, fallback
);
4380 "IPA(SET_ACCESS_CTRL,%s,%d) sent failed\n",
4381 card
->gdev
->dev
.kobj
.name
,
4385 } else if (card
->options
.isolation
!= ISOLATION_MODE_NONE
) {
4386 card
->options
.isolation
= ISOLATION_MODE_NONE
;
4388 dev_err(&card
->gdev
->dev
, "Adapter does not "
4389 "support QDIO data connection isolation\n");
4394 EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online
);
4396 void qeth_tx_timeout(struct net_device
*dev
)
4398 struct qeth_card
*card
;
4400 card
= dev
->ml_priv
;
4401 QETH_CARD_TEXT(card
, 4, "txtimeo");
4402 card
->stats
.tx_errors
++;
4403 qeth_schedule_recovery(card
);
4405 EXPORT_SYMBOL_GPL(qeth_tx_timeout
);
4407 static int qeth_mdio_read(struct net_device
*dev
, int phy_id
, int regnum
)
4409 struct qeth_card
*card
= dev
->ml_priv
;
4413 case MII_BMCR
: /* Basic mode control register */
4415 if ((card
->info
.link_type
!= QETH_LINK_TYPE_GBIT_ETH
) &&
4416 (card
->info
.link_type
!= QETH_LINK_TYPE_OSN
) &&
4417 (card
->info
.link_type
!= QETH_LINK_TYPE_10GBIT_ETH
))
4418 rc
|= BMCR_SPEED100
;
4420 case MII_BMSR
: /* Basic mode status register */
4421 rc
= BMSR_ERCAP
| BMSR_ANEGCOMPLETE
| BMSR_LSTATUS
|
4422 BMSR_10HALF
| BMSR_10FULL
| BMSR_100HALF
| BMSR_100FULL
|
4425 case MII_PHYSID1
: /* PHYS ID 1 */
4426 rc
= (dev
->dev_addr
[0] << 16) | (dev
->dev_addr
[1] << 8) |
4428 rc
= (rc
>> 5) & 0xFFFF;
4430 case MII_PHYSID2
: /* PHYS ID 2 */
4431 rc
= (dev
->dev_addr
[2] << 10) & 0xFFFF;
4433 case MII_ADVERTISE
: /* Advertisement control reg */
4436 case MII_LPA
: /* Link partner ability reg */
4437 rc
= LPA_10HALF
| LPA_10FULL
| LPA_100HALF
| LPA_100FULL
|
4438 LPA_100BASE4
| LPA_LPACK
;
4440 case MII_EXPANSION
: /* Expansion register */
4442 case MII_DCOUNTER
: /* disconnect counter */
4444 case MII_FCSCOUNTER
: /* false carrier counter */
4446 case MII_NWAYTEST
: /* N-way auto-neg test register */
4448 case MII_RERRCOUNTER
: /* rx error counter */
4449 rc
= card
->stats
.rx_errors
;
4451 case MII_SREVISION
: /* silicon revision */
4453 case MII_RESV1
: /* reserved 1 */
4455 case MII_LBRERROR
: /* loopback, rx, bypass error */
4457 case MII_PHYADDR
: /* physical address */
4459 case MII_RESV2
: /* reserved 2 */
4461 case MII_TPISTATUS
: /* TPI status for 10mbps */
4463 case MII_NCONFIG
: /* network interface config */
4471 static int qeth_send_ipa_snmp_cmd(struct qeth_card
*card
,
4472 struct qeth_cmd_buffer
*iob
, int len
,
4473 int (*reply_cb
)(struct qeth_card
*, struct qeth_reply
*,
4479 QETH_CARD_TEXT(card
, 4, "sendsnmp");
4481 memcpy(iob
->data
, IPA_PDU_HEADER
, IPA_PDU_HEADER_SIZE
);
4482 memcpy(QETH_IPA_CMD_DEST_ADDR(iob
->data
),
4483 &card
->token
.ulp_connection_r
, QETH_MPC_TOKEN_LENGTH
);
4484 /* adjust PDU length fields in IPA_PDU_HEADER */
4485 s1
= (u32
) IPA_PDU_HEADER_SIZE
+ len
;
4487 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob
->data
), &s1
, 2);
4488 memcpy(QETH_IPA_PDU_LEN_PDU1(iob
->data
), &s2
, 2);
4489 memcpy(QETH_IPA_PDU_LEN_PDU2(iob
->data
), &s2
, 2);
4490 memcpy(QETH_IPA_PDU_LEN_PDU3(iob
->data
), &s2
, 2);
4491 return qeth_send_control_data(card
, IPA_PDU_HEADER_SIZE
+ len
, iob
,
4492 reply_cb
, reply_param
);
4495 static int qeth_snmp_command_cb(struct qeth_card
*card
,
4496 struct qeth_reply
*reply
, unsigned long sdata
)
4498 struct qeth_ipa_cmd
*cmd
;
4499 struct qeth_arp_query_info
*qinfo
;
4500 struct qeth_snmp_cmd
*snmp
;
4501 unsigned char *data
;
4504 QETH_CARD_TEXT(card
, 3, "snpcmdcb");
4506 cmd
= (struct qeth_ipa_cmd
*) sdata
;
4507 data
= (unsigned char *)((char *)cmd
- reply
->offset
);
4508 qinfo
= (struct qeth_arp_query_info
*) reply
->param
;
4509 snmp
= &cmd
->data
.setadapterparms
.data
.snmp
;
4511 if (cmd
->hdr
.return_code
) {
4512 QETH_CARD_TEXT_(card
, 4, "scer1%x", cmd
->hdr
.return_code
);
4515 if (cmd
->data
.setadapterparms
.hdr
.return_code
) {
4516 cmd
->hdr
.return_code
=
4517 cmd
->data
.setadapterparms
.hdr
.return_code
;
4518 QETH_CARD_TEXT_(card
, 4, "scer2%x", cmd
->hdr
.return_code
);
4521 data_len
= *((__u16
*)QETH_IPA_PDU_LEN_PDU1(data
));
4522 if (cmd
->data
.setadapterparms
.hdr
.seq_no
== 1)
4523 data_len
-= (__u16
)((char *)&snmp
->data
- (char *)cmd
);
4525 data_len
-= (__u16
)((char *)&snmp
->request
- (char *)cmd
);
4527 /* check if there is enough room in userspace */
4528 if ((qinfo
->udata_len
- qinfo
->udata_offset
) < data_len
) {
4529 QETH_CARD_TEXT_(card
, 4, "scer3%i", -ENOMEM
);
4530 cmd
->hdr
.return_code
= IPA_RC_ENOMEM
;
4533 QETH_CARD_TEXT_(card
, 4, "snore%i",
4534 cmd
->data
.setadapterparms
.hdr
.used_total
);
4535 QETH_CARD_TEXT_(card
, 4, "sseqn%i",
4536 cmd
->data
.setadapterparms
.hdr
.seq_no
);
4537 /*copy entries to user buffer*/
4538 if (cmd
->data
.setadapterparms
.hdr
.seq_no
== 1) {
4539 memcpy(qinfo
->udata
+ qinfo
->udata_offset
,
4541 data_len
+ offsetof(struct qeth_snmp_cmd
, data
));
4542 qinfo
->udata_offset
+= offsetof(struct qeth_snmp_cmd
, data
);
4544 memcpy(qinfo
->udata
+ qinfo
->udata_offset
,
4545 (char *)&snmp
->request
, data_len
);
4547 qinfo
->udata_offset
+= data_len
;
4548 /* check if all replies received ... */
4549 QETH_CARD_TEXT_(card
, 4, "srtot%i",
4550 cmd
->data
.setadapterparms
.hdr
.used_total
);
4551 QETH_CARD_TEXT_(card
, 4, "srseq%i",
4552 cmd
->data
.setadapterparms
.hdr
.seq_no
);
4553 if (cmd
->data
.setadapterparms
.hdr
.seq_no
<
4554 cmd
->data
.setadapterparms
.hdr
.used_total
)
4559 static int qeth_snmp_command(struct qeth_card
*card
, char __user
*udata
)
4561 struct qeth_cmd_buffer
*iob
;
4562 struct qeth_ipa_cmd
*cmd
;
4563 struct qeth_snmp_ureq
*ureq
;
4564 unsigned int req_len
;
4565 struct qeth_arp_query_info qinfo
= {0, };
4568 QETH_CARD_TEXT(card
, 3, "snmpcmd");
4570 if (card
->info
.guestlan
)
4573 if ((!qeth_adp_supported(card
, IPA_SETADP_SET_SNMP_CONTROL
)) &&
4574 (!card
->options
.layer2
)) {
4577 /* skip 4 bytes (data_len struct member) to get req_len */
4578 if (copy_from_user(&req_len
, udata
+ sizeof(int), sizeof(int)))
4580 if (req_len
> (QETH_BUFSIZE
- IPA_PDU_HEADER_SIZE
-
4581 sizeof(struct qeth_ipacmd_hdr
) -
4582 sizeof(struct qeth_ipacmd_setadpparms_hdr
)))
4584 ureq
= memdup_user(udata
, req_len
+ sizeof(struct qeth_snmp_ureq_hdr
));
4586 QETH_CARD_TEXT(card
, 2, "snmpnome");
4587 return PTR_ERR(ureq
);
4589 qinfo
.udata_len
= ureq
->hdr
.data_len
;
4590 qinfo
.udata
= kzalloc(qinfo
.udata_len
, GFP_KERNEL
);
4595 qinfo
.udata_offset
= sizeof(struct qeth_snmp_ureq_hdr
);
4597 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_SET_SNMP_CONTROL
,
4598 QETH_SNMP_SETADP_CMDLENGTH
+ req_len
);
4603 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
4604 memcpy(&cmd
->data
.setadapterparms
.data
.snmp
, &ureq
->cmd
, req_len
);
4605 rc
= qeth_send_ipa_snmp_cmd(card
, iob
, QETH_SETADP_BASE_LEN
+ req_len
,
4606 qeth_snmp_command_cb
, (void *)&qinfo
);
4608 QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n",
4609 QETH_CARD_IFNAME(card
), rc
);
4611 if (copy_to_user(udata
, qinfo
.udata
, qinfo
.udata_len
))
4620 static int qeth_setadpparms_query_oat_cb(struct qeth_card
*card
,
4621 struct qeth_reply
*reply
, unsigned long data
)
4623 struct qeth_ipa_cmd
*cmd
;
4624 struct qeth_qoat_priv
*priv
;
4628 QETH_CARD_TEXT(card
, 3, "qoatcb");
4630 cmd
= (struct qeth_ipa_cmd
*)data
;
4631 priv
= (struct qeth_qoat_priv
*)reply
->param
;
4632 resdatalen
= cmd
->data
.setadapterparms
.hdr
.cmdlength
;
4633 resdata
= (char *)data
+ 28;
4635 if (resdatalen
> (priv
->buffer_len
- priv
->response_len
)) {
4636 cmd
->hdr
.return_code
= IPA_RC_FFFF
;
4640 memcpy((priv
->buffer
+ priv
->response_len
), resdata
,
4642 priv
->response_len
+= resdatalen
;
4644 if (cmd
->data
.setadapterparms
.hdr
.seq_no
<
4645 cmd
->data
.setadapterparms
.hdr
.used_total
)
4650 static int qeth_query_oat_command(struct qeth_card
*card
, char __user
*udata
)
4653 struct qeth_cmd_buffer
*iob
;
4654 struct qeth_ipa_cmd
*cmd
;
4655 struct qeth_query_oat
*oat_req
;
4656 struct qeth_query_oat_data oat_data
;
4657 struct qeth_qoat_priv priv
;
4660 QETH_CARD_TEXT(card
, 3, "qoatcmd");
4662 if (!qeth_adp_supported(card
, IPA_SETADP_QUERY_OAT
)) {
4667 if (copy_from_user(&oat_data
, udata
,
4668 sizeof(struct qeth_query_oat_data
))) {
4673 priv
.buffer_len
= oat_data
.buffer_len
;
4674 priv
.response_len
= 0;
4675 priv
.buffer
= kzalloc(oat_data
.buffer_len
, GFP_KERNEL
);
4681 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_QUERY_OAT
,
4682 sizeof(struct qeth_ipacmd_setadpparms_hdr
) +
4683 sizeof(struct qeth_query_oat
));
4688 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
4689 oat_req
= &cmd
->data
.setadapterparms
.data
.query_oat
;
4690 oat_req
->subcmd_code
= oat_data
.command
;
4692 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_setadpparms_query_oat_cb
,
4695 if (is_compat_task())
4696 tmp
= compat_ptr(oat_data
.ptr
);
4698 tmp
= (void __user
*)(unsigned long)oat_data
.ptr
;
4700 if (copy_to_user(tmp
, priv
.buffer
,
4701 priv
.response_len
)) {
4706 oat_data
.response_len
= priv
.response_len
;
4708 if (copy_to_user(udata
, &oat_data
,
4709 sizeof(struct qeth_query_oat_data
)))
4712 if (rc
== IPA_RC_FFFF
)
4721 static int qeth_query_card_info_cb(struct qeth_card
*card
,
4722 struct qeth_reply
*reply
, unsigned long data
)
4724 struct qeth_ipa_cmd
*cmd
;
4725 struct qeth_query_card_info
*card_info
;
4726 struct carrier_info
*carrier_info
;
4728 QETH_CARD_TEXT(card
, 2, "qcrdincb");
4729 carrier_info
= (struct carrier_info
*)reply
->param
;
4730 cmd
= (struct qeth_ipa_cmd
*)data
;
4731 card_info
= &cmd
->data
.setadapterparms
.data
.card_info
;
4732 if (cmd
->data
.setadapterparms
.hdr
.return_code
== 0) {
4733 carrier_info
->card_type
= card_info
->card_type
;
4734 carrier_info
->port_mode
= card_info
->port_mode
;
4735 carrier_info
->port_speed
= card_info
->port_speed
;
4738 qeth_default_setadapterparms_cb(card
, reply
, (unsigned long) cmd
);
4742 static int qeth_query_card_info(struct qeth_card
*card
,
4743 struct carrier_info
*carrier_info
)
4745 struct qeth_cmd_buffer
*iob
;
4747 QETH_CARD_TEXT(card
, 2, "qcrdinfo");
4748 if (!qeth_adp_supported(card
, IPA_SETADP_QUERY_CARD_INFO
))
4750 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_QUERY_CARD_INFO
,
4751 sizeof(struct qeth_ipacmd_setadpparms_hdr
));
4754 return qeth_send_ipa_cmd(card
, iob
, qeth_query_card_info_cb
,
4755 (void *)carrier_info
);
4759 * qeth_vm_request_mac() - Request a hypervisor-managed MAC address
4760 * @card: pointer to a qeth_card
4763 * 0, if a MAC address has been set for the card's netdevice
4764 * a return code, for various error conditions
4766 int qeth_vm_request_mac(struct qeth_card
*card
)
4768 struct diag26c_mac_resp
*response
;
4769 struct diag26c_mac_req
*request
;
4770 struct ccw_dev_id id
;
4773 QETH_DBF_TEXT(SETUP
, 2, "vmreqmac");
4778 request
= kzalloc(sizeof(*request
), GFP_KERNEL
| GFP_DMA
);
4779 response
= kzalloc(sizeof(*response
), GFP_KERNEL
| GFP_DMA
);
4780 if (!request
|| !response
) {
4785 ccw_device_get_id(CARD_DDEV(card
), &id
);
4786 request
->resp_buf_len
= sizeof(*response
);
4787 request
->resp_version
= DIAG26C_VERSION2
;
4788 request
->op_code
= DIAG26C_GET_MAC
;
4789 request
->devno
= id
.devno
;
4791 rc
= diag26c(request
, response
, DIAG26C_MAC_SERVICES
);
4795 if (request
->resp_buf_len
< sizeof(*response
) ||
4796 response
->version
!= request
->resp_version
) {
4798 QETH_DBF_TEXT(SETUP
, 2, "badresp");
4799 QETH_DBF_HEX(SETUP
, 2, &request
->resp_buf_len
,
4800 sizeof(request
->resp_buf_len
));
4801 } else if (!is_valid_ether_addr(response
->mac
)) {
4803 QETH_DBF_TEXT(SETUP
, 2, "badmac");
4804 QETH_DBF_HEX(SETUP
, 2, response
->mac
, ETH_ALEN
);
4806 ether_addr_copy(card
->dev
->dev_addr
, response
->mac
);
4814 EXPORT_SYMBOL_GPL(qeth_vm_request_mac
);
4816 static int qeth_get_qdio_q_format(struct qeth_card
*card
)
4818 if (card
->info
.type
== QETH_CARD_TYPE_IQD
)
4819 return QDIO_IQDIO_QFMT
;
4821 return QDIO_QETH_QFMT
;
4824 static void qeth_determine_capabilities(struct qeth_card
*card
)
4829 struct ccw_device
*ddev
;
4830 int ddev_offline
= 0;
4832 QETH_DBF_TEXT(SETUP
, 2, "detcapab");
4833 ddev
= CARD_DDEV(card
);
4834 if (!ddev
->online
) {
4836 rc
= ccw_device_set_online(ddev
);
4838 QETH_DBF_TEXT_(SETUP
, 2, "3err%d", rc
);
4843 rc
= qeth_read_conf_data(card
, (void **) &prcd
, &length
);
4845 QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n",
4846 dev_name(&card
->gdev
->dev
), rc
);
4847 QETH_DBF_TEXT_(SETUP
, 2, "5err%d", rc
);
4850 qeth_configure_unitaddr(card
, prcd
);
4852 qeth_configure_blkt_default(card
, prcd
);
4855 rc
= qdio_get_ssqd_desc(ddev
, &card
->ssqd
);
4857 QETH_DBF_TEXT_(SETUP
, 2, "6err%d", rc
);
4859 QETH_DBF_TEXT_(SETUP
, 2, "qfmt%d", card
->ssqd
.qfmt
);
4860 QETH_DBF_TEXT_(SETUP
, 2, "ac1:%02x", card
->ssqd
.qdioac1
);
4861 QETH_DBF_TEXT_(SETUP
, 2, "ac2:%04x", card
->ssqd
.qdioac2
);
4862 QETH_DBF_TEXT_(SETUP
, 2, "ac3:%04x", card
->ssqd
.qdioac3
);
4863 QETH_DBF_TEXT_(SETUP
, 2, "icnt%d", card
->ssqd
.icnt
);
4864 if (!((card
->ssqd
.qfmt
!= QDIO_IQDIO_QFMT
) ||
4865 ((card
->ssqd
.qdioac1
& CHSC_AC1_INITIATE_INPUTQ
) == 0) ||
4866 ((card
->ssqd
.qdioac3
& CHSC_AC3_FORMAT2_CQ_AVAILABLE
) == 0))) {
4867 dev_info(&card
->gdev
->dev
,
4868 "Completion Queueing supported\n");
4870 card
->options
.cq
= QETH_CQ_NOTAVAILABLE
;
4875 if (ddev_offline
== 1)
4876 ccw_device_set_offline(ddev
);
4881 static void qeth_qdio_establish_cq(struct qeth_card
*card
,
4882 struct qdio_buffer
**in_sbal_ptrs
,
4883 void (**queue_start_poll
)
4884 (struct ccw_device
*, int,
4889 if (card
->options
.cq
== QETH_CQ_ENABLED
) {
4890 int offset
= QDIO_MAX_BUFFERS_PER_Q
*
4891 (card
->qdio
.no_in_queues
- 1);
4892 for (i
= 0; i
< QDIO_MAX_BUFFERS_PER_Q
; ++i
) {
4893 in_sbal_ptrs
[offset
+ i
] = (struct qdio_buffer
*)
4894 virt_to_phys(card
->qdio
.c_q
->bufs
[i
].buffer
);
4897 queue_start_poll
[card
->qdio
.no_in_queues
- 1] = NULL
;
4901 static int qeth_qdio_establish(struct qeth_card
*card
)
4903 struct qdio_initialize init_data
;
4904 char *qib_param_field
;
4905 struct qdio_buffer
**in_sbal_ptrs
;
4906 void (**queue_start_poll
) (struct ccw_device
*, int, unsigned long);
4907 struct qdio_buffer
**out_sbal_ptrs
;
4911 QETH_DBF_TEXT(SETUP
, 2, "qdioest");
4913 qib_param_field
= kzalloc(QDIO_MAX_BUFFERS_PER_Q
* sizeof(char),
4915 if (!qib_param_field
) {
4917 goto out_free_nothing
;
4920 qeth_create_qib_param_field(card
, qib_param_field
);
4921 qeth_create_qib_param_field_blkt(card
, qib_param_field
);
4923 in_sbal_ptrs
= kzalloc(card
->qdio
.no_in_queues
*
4924 QDIO_MAX_BUFFERS_PER_Q
* sizeof(void *),
4926 if (!in_sbal_ptrs
) {
4928 goto out_free_qib_param
;
4930 for (i
= 0; i
< QDIO_MAX_BUFFERS_PER_Q
; ++i
) {
4931 in_sbal_ptrs
[i
] = (struct qdio_buffer
*)
4932 virt_to_phys(card
->qdio
.in_q
->bufs
[i
].buffer
);
4935 queue_start_poll
= kzalloc(sizeof(void *) * card
->qdio
.no_in_queues
,
4937 if (!queue_start_poll
) {
4939 goto out_free_in_sbals
;
4941 for (i
= 0; i
< card
->qdio
.no_in_queues
; ++i
)
4942 queue_start_poll
[i
] = card
->discipline
->start_poll
;
4944 qeth_qdio_establish_cq(card
, in_sbal_ptrs
, queue_start_poll
);
4947 kzalloc(card
->qdio
.no_out_queues
* QDIO_MAX_BUFFERS_PER_Q
*
4948 sizeof(void *), GFP_KERNEL
);
4949 if (!out_sbal_ptrs
) {
4951 goto out_free_queue_start_poll
;
4953 for (i
= 0, k
= 0; i
< card
->qdio
.no_out_queues
; ++i
)
4954 for (j
= 0; j
< QDIO_MAX_BUFFERS_PER_Q
; ++j
, ++k
) {
4955 out_sbal_ptrs
[k
] = (struct qdio_buffer
*)virt_to_phys(
4956 card
->qdio
.out_qs
[i
]->bufs
[j
]->buffer
);
4959 memset(&init_data
, 0, sizeof(struct qdio_initialize
));
4960 init_data
.cdev
= CARD_DDEV(card
);
4961 init_data
.q_format
= qeth_get_qdio_q_format(card
);
4962 init_data
.qib_param_field_format
= 0;
4963 init_data
.qib_param_field
= qib_param_field
;
4964 init_data
.no_input_qs
= card
->qdio
.no_in_queues
;
4965 init_data
.no_output_qs
= card
->qdio
.no_out_queues
;
4966 init_data
.input_handler
= card
->discipline
->input_handler
;
4967 init_data
.output_handler
= card
->discipline
->output_handler
;
4968 init_data
.queue_start_poll_array
= queue_start_poll
;
4969 init_data
.int_parm
= (unsigned long) card
;
4970 init_data
.input_sbal_addr_array
= (void **) in_sbal_ptrs
;
4971 init_data
.output_sbal_addr_array
= (void **) out_sbal_ptrs
;
4972 init_data
.output_sbal_state_array
= card
->qdio
.out_bufstates
;
4973 init_data
.scan_threshold
=
4974 (card
->info
.type
== QETH_CARD_TYPE_IQD
) ? 1 : 32;
4976 if (atomic_cmpxchg(&card
->qdio
.state
, QETH_QDIO_ALLOCATED
,
4977 QETH_QDIO_ESTABLISHED
) == QETH_QDIO_ALLOCATED
) {
4978 rc
= qdio_allocate(&init_data
);
4980 atomic_set(&card
->qdio
.state
, QETH_QDIO_ALLOCATED
);
4983 rc
= qdio_establish(&init_data
);
4985 atomic_set(&card
->qdio
.state
, QETH_QDIO_ALLOCATED
);
4986 qdio_free(CARD_DDEV(card
));
4990 switch (card
->options
.cq
) {
4991 case QETH_CQ_ENABLED
:
4992 dev_info(&card
->gdev
->dev
, "Completion Queue support enabled");
4994 case QETH_CQ_DISABLED
:
4995 dev_info(&card
->gdev
->dev
, "Completion Queue support disabled");
5001 kfree(out_sbal_ptrs
);
5002 out_free_queue_start_poll
:
5003 kfree(queue_start_poll
);
5005 kfree(in_sbal_ptrs
);
5007 kfree(qib_param_field
);
5012 static void qeth_core_free_card(struct qeth_card
*card
)
5015 QETH_DBF_TEXT(SETUP
, 2, "freecrd");
5016 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
5017 qeth_clean_channel(&card
->read
);
5018 qeth_clean_channel(&card
->write
);
5020 free_netdev(card
->dev
);
5021 qeth_free_qdio_buffers(card
);
5022 unregister_service_level(&card
->qeth_service_level
);
5026 void qeth_trace_features(struct qeth_card
*card
)
5028 QETH_CARD_TEXT(card
, 2, "features");
5029 QETH_CARD_HEX(card
, 2, &card
->options
.ipa4
, sizeof(card
->options
.ipa4
));
5030 QETH_CARD_HEX(card
, 2, &card
->options
.ipa6
, sizeof(card
->options
.ipa6
));
5031 QETH_CARD_HEX(card
, 2, &card
->options
.adp
, sizeof(card
->options
.adp
));
5032 QETH_CARD_HEX(card
, 2, &card
->info
.diagass_support
,
5033 sizeof(card
->info
.diagass_support
));
5035 EXPORT_SYMBOL_GPL(qeth_trace_features
);
5037 static struct ccw_device_id qeth_ids
[] = {
5038 {CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01),
5039 .driver_info
= QETH_CARD_TYPE_OSD
},
5040 {CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05),
5041 .driver_info
= QETH_CARD_TYPE_IQD
},
5042 {CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06),
5043 .driver_info
= QETH_CARD_TYPE_OSN
},
5044 {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03),
5045 .driver_info
= QETH_CARD_TYPE_OSM
},
5046 {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02),
5047 .driver_info
= QETH_CARD_TYPE_OSX
},
5050 MODULE_DEVICE_TABLE(ccw
, qeth_ids
);
5052 static struct ccw_driver qeth_ccw_driver
= {
5054 .owner
= THIS_MODULE
,
5058 .probe
= ccwgroup_probe_ccwdev
,
5059 .remove
= ccwgroup_remove_ccwdev
,
5062 int qeth_core_hardsetup_card(struct qeth_card
*card
)
5067 QETH_DBF_TEXT(SETUP
, 2, "hrdsetup");
5068 atomic_set(&card
->force_alloc_skb
, 0);
5069 qeth_update_from_chp_desc(card
);
5072 QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n",
5073 dev_name(&card
->gdev
->dev
));
5074 rc
= qeth_qdio_clear_card(card
, card
->info
.type
!= QETH_CARD_TYPE_IQD
);
5075 ccw_device_set_offline(CARD_DDEV(card
));
5076 ccw_device_set_offline(CARD_WDEV(card
));
5077 ccw_device_set_offline(CARD_RDEV(card
));
5078 qdio_free(CARD_DDEV(card
));
5079 rc
= ccw_device_set_online(CARD_RDEV(card
));
5082 rc
= ccw_device_set_online(CARD_WDEV(card
));
5085 rc
= ccw_device_set_online(CARD_DDEV(card
));
5089 if (rc
== -ERESTARTSYS
) {
5090 QETH_DBF_TEXT(SETUP
, 2, "break1");
5093 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
5099 qeth_determine_capabilities(card
);
5100 qeth_init_tokens(card
);
5101 qeth_init_func_level(card
);
5102 rc
= qeth_idx_activate_channel(&card
->read
, qeth_idx_read_cb
);
5103 if (rc
== -ERESTARTSYS
) {
5104 QETH_DBF_TEXT(SETUP
, 2, "break2");
5107 QETH_DBF_TEXT_(SETUP
, 2, "3err%d", rc
);
5113 rc
= qeth_idx_activate_channel(&card
->write
, qeth_idx_write_cb
);
5114 if (rc
== -ERESTARTSYS
) {
5115 QETH_DBF_TEXT(SETUP
, 2, "break3");
5118 QETH_DBF_TEXT_(SETUP
, 2, "4err%d", rc
);
5124 card
->read_or_write_problem
= 0;
5125 rc
= qeth_mpc_initialize(card
);
5127 QETH_DBF_TEXT_(SETUP
, 2, "5err%d", rc
);
5131 rc
= qeth_send_startlan(card
);
5133 QETH_DBF_TEXT_(SETUP
, 2, "6err%d", rc
);
5134 if (rc
== IPA_RC_LAN_OFFLINE
) {
5135 dev_warn(&card
->gdev
->dev
,
5136 "The LAN is offline\n");
5137 card
->lan_online
= 0;
5143 card
->lan_online
= 1;
5145 card
->options
.ipa4
.supported_funcs
= 0;
5146 card
->options
.ipa6
.supported_funcs
= 0;
5147 card
->options
.adp
.supported_funcs
= 0;
5148 card
->options
.sbp
.supported_funcs
= 0;
5149 card
->info
.diagass_support
= 0;
5150 rc
= qeth_query_ipassists(card
, QETH_PROT_IPV4
);
5153 if (qeth_is_supported(card
, IPA_SETADAPTERPARMS
)) {
5154 rc
= qeth_query_setadapterparms(card
);
5156 QETH_DBF_TEXT_(SETUP
, 2, "7err%d", rc
);
5160 if (qeth_adp_supported(card
, IPA_SETADP_SET_DIAG_ASSIST
)) {
5161 rc
= qeth_query_setdiagass(card
);
5163 QETH_DBF_TEXT_(SETUP
, 2, "8err%d", rc
);
5169 dev_warn(&card
->gdev
->dev
, "The qeth device driver failed to recover "
5170 "an error on the device\n");
5171 QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n",
5172 dev_name(&card
->gdev
->dev
), rc
);
5175 EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card
);
5177 static void qeth_create_skb_frag(struct qdio_buffer_element
*element
,
5178 struct sk_buff
*skb
, int offset
, int data_len
)
5180 struct page
*page
= virt_to_page(element
->addr
);
5181 unsigned int next_frag
;
5183 /* first fill the linear space */
5185 unsigned int linear
= min(data_len
, skb_tailroom(skb
));
5187 skb_put_data(skb
, element
->addr
+ offset
, linear
);
5192 /* fall through to add page frag for remaining data */
5195 next_frag
= skb_shinfo(skb
)->nr_frags
;
5197 skb_add_rx_frag(skb
, next_frag
, page
, offset
, data_len
, data_len
);
5200 static inline int qeth_is_last_sbale(struct qdio_buffer_element
*sbale
)
5202 return (sbale
->eflags
& SBAL_EFLAGS_LAST_ENTRY
);
5205 struct sk_buff
*qeth_core_get_next_skb(struct qeth_card
*card
,
5206 struct qeth_qdio_buffer
*qethbuffer
,
5207 struct qdio_buffer_element
**__element
, int *__offset
,
5208 struct qeth_hdr
**hdr
)
5210 struct qdio_buffer_element
*element
= *__element
;
5211 struct qdio_buffer
*buffer
= qethbuffer
->buffer
;
5212 int offset
= *__offset
;
5213 struct sk_buff
*skb
;
5220 /* qeth_hdr must not cross element boundaries */
5221 while (element
->length
< offset
+ sizeof(struct qeth_hdr
)) {
5222 if (qeth_is_last_sbale(element
))
5227 *hdr
= element
->addr
+ offset
;
5229 offset
+= sizeof(struct qeth_hdr
);
5230 switch ((*hdr
)->hdr
.l2
.id
) {
5231 case QETH_HEADER_TYPE_LAYER2
:
5232 skb_len
= (*hdr
)->hdr
.l2
.pkt_length
;
5234 case QETH_HEADER_TYPE_LAYER3
:
5235 skb_len
= (*hdr
)->hdr
.l3
.length
;
5236 headroom
= ETH_HLEN
;
5238 case QETH_HEADER_TYPE_OSN
:
5239 skb_len
= (*hdr
)->hdr
.osn
.pdu_length
;
5240 headroom
= sizeof(struct qeth_hdr
);
5249 if (((skb_len
>= card
->options
.rx_sg_cb
) &&
5250 (!(card
->info
.type
== QETH_CARD_TYPE_OSN
)) &&
5251 (!atomic_read(&card
->force_alloc_skb
))) ||
5252 (card
->options
.cq
== QETH_CQ_ENABLED
))
5255 if (use_rx_sg
&& qethbuffer
->rx_skb
) {
5256 /* QETH_CQ_ENABLED only: */
5257 skb
= qethbuffer
->rx_skb
;
5258 qethbuffer
->rx_skb
= NULL
;
5260 unsigned int linear
= (use_rx_sg
) ? QETH_RX_PULL_LEN
: skb_len
;
5262 skb
= dev_alloc_skb(linear
+ headroom
);
5267 skb_reserve(skb
, headroom
);
5269 data_ptr
= element
->addr
+ offset
;
5271 data_len
= min(skb_len
, (int)(element
->length
- offset
));
5274 qeth_create_skb_frag(element
, skb
, offset
,
5277 skb_put_data(skb
, data_ptr
, data_len
);
5279 skb_len
-= data_len
;
5281 if (qeth_is_last_sbale(element
)) {
5282 QETH_CARD_TEXT(card
, 4, "unexeob");
5283 QETH_CARD_HEX(card
, 2, buffer
, sizeof(void *));
5284 dev_kfree_skb_any(skb
);
5285 card
->stats
.rx_errors
++;
5290 data_ptr
= element
->addr
;
5295 *__element
= element
;
5297 if (use_rx_sg
&& card
->options
.performance_stats
) {
5298 card
->perf_stats
.sg_skbs_rx
++;
5299 card
->perf_stats
.sg_frags_rx
+= skb_shinfo(skb
)->nr_frags
;
5303 if (net_ratelimit()) {
5304 QETH_CARD_TEXT(card
, 2, "noskbmem");
5306 card
->stats
.rx_dropped
++;
5309 EXPORT_SYMBOL_GPL(qeth_core_get_next_skb
);
5311 int qeth_poll(struct napi_struct
*napi
, int budget
)
5313 struct qeth_card
*card
= container_of(napi
, struct qeth_card
, napi
);
5315 struct qeth_qdio_buffer
*buffer
;
5317 int new_budget
= budget
;
5319 if (card
->options
.performance_stats
) {
5320 card
->perf_stats
.inbound_cnt
++;
5321 card
->perf_stats
.inbound_start_time
= qeth_get_micros();
5325 if (!card
->rx
.b_count
) {
5326 card
->rx
.qdio_err
= 0;
5327 card
->rx
.b_count
= qdio_get_next_buffers(
5328 card
->data
.ccwdev
, 0, &card
->rx
.b_index
,
5329 &card
->rx
.qdio_err
);
5330 if (card
->rx
.b_count
<= 0) {
5331 card
->rx
.b_count
= 0;
5334 card
->rx
.b_element
=
5335 &card
->qdio
.in_q
->bufs
[card
->rx
.b_index
]
5336 .buffer
->element
[0];
5337 card
->rx
.e_offset
= 0;
5340 while (card
->rx
.b_count
) {
5341 buffer
= &card
->qdio
.in_q
->bufs
[card
->rx
.b_index
];
5342 if (!(card
->rx
.qdio_err
&&
5343 qeth_check_qdio_errors(card
, buffer
->buffer
,
5344 card
->rx
.qdio_err
, "qinerr")))
5346 card
->discipline
->process_rx_buffer(
5347 card
, new_budget
, &done
);
5352 if (card
->options
.performance_stats
)
5353 card
->perf_stats
.bufs_rec
++;
5354 qeth_put_buffer_pool_entry(card
,
5355 buffer
->pool_entry
);
5356 qeth_queue_input_buffer(card
, card
->rx
.b_index
);
5358 if (card
->rx
.b_count
) {
5360 (card
->rx
.b_index
+ 1) %
5361 QDIO_MAX_BUFFERS_PER_Q
;
5362 card
->rx
.b_element
=
5364 ->bufs
[card
->rx
.b_index
]
5365 .buffer
->element
[0];
5366 card
->rx
.e_offset
= 0;
5370 if (work_done
>= budget
)
5373 new_budget
= budget
- work_done
;
5377 napi_complete_done(napi
, work_done
);
5378 if (qdio_start_irq(card
->data
.ccwdev
, 0))
5379 napi_schedule(&card
->napi
);
5381 if (card
->options
.performance_stats
)
5382 card
->perf_stats
.inbound_time
+= qeth_get_micros() -
5383 card
->perf_stats
.inbound_start_time
;
5386 EXPORT_SYMBOL_GPL(qeth_poll
);
5388 int qeth_setassparms_cb(struct qeth_card
*card
,
5389 struct qeth_reply
*reply
, unsigned long data
)
5391 struct qeth_ipa_cmd
*cmd
;
5393 QETH_CARD_TEXT(card
, 4, "defadpcb");
5395 cmd
= (struct qeth_ipa_cmd
*) data
;
5396 if (cmd
->hdr
.return_code
== 0) {
5397 cmd
->hdr
.return_code
= cmd
->data
.setassparms
.hdr
.return_code
;
5398 if (cmd
->hdr
.prot_version
== QETH_PROT_IPV4
)
5399 card
->options
.ipa4
.enabled_funcs
= cmd
->hdr
.ipa_enabled
;
5400 if (cmd
->hdr
.prot_version
== QETH_PROT_IPV6
)
5401 card
->options
.ipa6
.enabled_funcs
= cmd
->hdr
.ipa_enabled
;
5405 EXPORT_SYMBOL_GPL(qeth_setassparms_cb
);
5407 struct qeth_cmd_buffer
*qeth_get_setassparms_cmd(struct qeth_card
*card
,
5408 enum qeth_ipa_funcs ipa_func
,
5409 __u16 cmd_code
, __u16 len
,
5410 enum qeth_prot_versions prot
)
5412 struct qeth_cmd_buffer
*iob
;
5413 struct qeth_ipa_cmd
*cmd
;
5415 QETH_CARD_TEXT(card
, 4, "getasscm");
5416 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_SETASSPARMS
, prot
);
5419 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
5420 cmd
->data
.setassparms
.hdr
.assist_no
= ipa_func
;
5421 cmd
->data
.setassparms
.hdr
.length
= 8 + len
;
5422 cmd
->data
.setassparms
.hdr
.command_code
= cmd_code
;
5423 cmd
->data
.setassparms
.hdr
.return_code
= 0;
5424 cmd
->data
.setassparms
.hdr
.seq_no
= 0;
5429 EXPORT_SYMBOL_GPL(qeth_get_setassparms_cmd
);
5431 int qeth_send_setassparms(struct qeth_card
*card
,
5432 struct qeth_cmd_buffer
*iob
, __u16 len
, long data
,
5433 int (*reply_cb
)(struct qeth_card
*,
5434 struct qeth_reply
*, unsigned long),
5438 struct qeth_ipa_cmd
*cmd
;
5440 QETH_CARD_TEXT(card
, 4, "sendassp");
5442 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
5443 if (len
<= sizeof(__u32
))
5444 cmd
->data
.setassparms
.data
.flags_32bit
= (__u32
) data
;
5445 else /* (len > sizeof(__u32)) */
5446 memcpy(&cmd
->data
.setassparms
.data
, (void *) data
, len
);
5448 rc
= qeth_send_ipa_cmd(card
, iob
, reply_cb
, reply_param
);
5451 EXPORT_SYMBOL_GPL(qeth_send_setassparms
);
5453 int qeth_send_simple_setassparms(struct qeth_card
*card
,
5454 enum qeth_ipa_funcs ipa_func
,
5455 __u16 cmd_code
, long data
)
5459 struct qeth_cmd_buffer
*iob
;
5461 QETH_CARD_TEXT(card
, 4, "simassp4");
5463 length
= sizeof(__u32
);
5464 iob
= qeth_get_setassparms_cmd(card
, ipa_func
, cmd_code
,
5465 length
, QETH_PROT_IPV4
);
5468 rc
= qeth_send_setassparms(card
, iob
, length
, data
,
5469 qeth_setassparms_cb
, NULL
);
5472 EXPORT_SYMBOL_GPL(qeth_send_simple_setassparms
);
5474 static void qeth_unregister_dbf_views(void)
5477 for (x
= 0; x
< QETH_DBF_INFOS
; x
++) {
5478 debug_unregister(qeth_dbf
[x
].id
);
5479 qeth_dbf
[x
].id
= NULL
;
5483 void qeth_dbf_longtext(debug_info_t
*id
, int level
, char *fmt
, ...)
5485 char dbf_txt_buf
[32];
5488 if (!debug_level_enabled(id
, level
))
5490 va_start(args
, fmt
);
5491 vsnprintf(dbf_txt_buf
, sizeof(dbf_txt_buf
), fmt
, args
);
5493 debug_text_event(id
, level
, dbf_txt_buf
);
5495 EXPORT_SYMBOL_GPL(qeth_dbf_longtext
);
5497 static int qeth_register_dbf_views(void)
5502 for (x
= 0; x
< QETH_DBF_INFOS
; x
++) {
5503 /* register the areas */
5504 qeth_dbf
[x
].id
= debug_register(qeth_dbf
[x
].name
,
5508 if (qeth_dbf
[x
].id
== NULL
) {
5509 qeth_unregister_dbf_views();
5513 /* register a view */
5514 ret
= debug_register_view(qeth_dbf
[x
].id
, qeth_dbf
[x
].view
);
5516 qeth_unregister_dbf_views();
5520 /* set a passing level */
5521 debug_set_level(qeth_dbf
[x
].id
, qeth_dbf
[x
].level
);
5527 int qeth_core_load_discipline(struct qeth_card
*card
,
5528 enum qeth_discipline_id discipline
)
5532 mutex_lock(&qeth_mod_mutex
);
5533 switch (discipline
) {
5534 case QETH_DISCIPLINE_LAYER3
:
5535 card
->discipline
= try_then_request_module(
5536 symbol_get(qeth_l3_discipline
), "qeth_l3");
5538 case QETH_DISCIPLINE_LAYER2
:
5539 card
->discipline
= try_then_request_module(
5540 symbol_get(qeth_l2_discipline
), "qeth_l2");
5546 if (!card
->discipline
) {
5547 dev_err(&card
->gdev
->dev
, "There is no kernel module to "
5548 "support discipline %d\n", discipline
);
5551 mutex_unlock(&qeth_mod_mutex
);
5555 void qeth_core_free_discipline(struct qeth_card
*card
)
5557 if (card
->options
.layer2
)
5558 symbol_put(qeth_l2_discipline
);
5560 symbol_put(qeth_l3_discipline
);
5561 card
->discipline
= NULL
;
5564 const struct device_type qeth_generic_devtype
= {
5565 .name
= "qeth_generic",
5566 .groups
= qeth_generic_attr_groups
,
5568 EXPORT_SYMBOL_GPL(qeth_generic_devtype
);
5570 static const struct device_type qeth_osn_devtype
= {
5572 .groups
= qeth_osn_attr_groups
,
5575 #define DBF_NAME_LEN 20
5577 struct qeth_dbf_entry
{
5578 char dbf_name
[DBF_NAME_LEN
];
5579 debug_info_t
*dbf_info
;
5580 struct list_head dbf_list
;
5583 static LIST_HEAD(qeth_dbf_list
);
5584 static DEFINE_MUTEX(qeth_dbf_list_mutex
);
5586 static debug_info_t
*qeth_get_dbf_entry(char *name
)
5588 struct qeth_dbf_entry
*entry
;
5589 debug_info_t
*rc
= NULL
;
5591 mutex_lock(&qeth_dbf_list_mutex
);
5592 list_for_each_entry(entry
, &qeth_dbf_list
, dbf_list
) {
5593 if (strcmp(entry
->dbf_name
, name
) == 0) {
5594 rc
= entry
->dbf_info
;
5598 mutex_unlock(&qeth_dbf_list_mutex
);
5602 static int qeth_add_dbf_entry(struct qeth_card
*card
, char *name
)
5604 struct qeth_dbf_entry
*new_entry
;
5606 card
->debug
= debug_register(name
, 2, 1, 8);
5608 QETH_DBF_TEXT_(SETUP
, 2, "%s", "qcdbf");
5611 if (debug_register_view(card
->debug
, &debug_hex_ascii_view
))
5613 new_entry
= kzalloc(sizeof(struct qeth_dbf_entry
), GFP_KERNEL
);
5616 strncpy(new_entry
->dbf_name
, name
, DBF_NAME_LEN
);
5617 new_entry
->dbf_info
= card
->debug
;
5618 mutex_lock(&qeth_dbf_list_mutex
);
5619 list_add(&new_entry
->dbf_list
, &qeth_dbf_list
);
5620 mutex_unlock(&qeth_dbf_list_mutex
);
5625 debug_unregister(card
->debug
);
5630 static void qeth_clear_dbf_list(void)
5632 struct qeth_dbf_entry
*entry
, *tmp
;
5634 mutex_lock(&qeth_dbf_list_mutex
);
5635 list_for_each_entry_safe(entry
, tmp
, &qeth_dbf_list
, dbf_list
) {
5636 list_del(&entry
->dbf_list
);
5637 debug_unregister(entry
->dbf_info
);
5640 mutex_unlock(&qeth_dbf_list_mutex
);
5643 static int qeth_core_probe_device(struct ccwgroup_device
*gdev
)
5645 struct qeth_card
*card
;
5648 enum qeth_discipline_id enforced_disc
;
5649 unsigned long flags
;
5650 char dbf_name
[DBF_NAME_LEN
];
5652 QETH_DBF_TEXT(SETUP
, 2, "probedev");
5655 if (!get_device(dev
))
5658 QETH_DBF_TEXT_(SETUP
, 2, "%s", dev_name(&gdev
->dev
));
5660 card
= qeth_alloc_card();
5662 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", -ENOMEM
);
5667 snprintf(dbf_name
, sizeof(dbf_name
), "qeth_card_%s",
5668 dev_name(&gdev
->dev
));
5669 card
->debug
= qeth_get_dbf_entry(dbf_name
);
5671 rc
= qeth_add_dbf_entry(card
, dbf_name
);
5676 card
->read
.ccwdev
= gdev
->cdev
[0];
5677 card
->write
.ccwdev
= gdev
->cdev
[1];
5678 card
->data
.ccwdev
= gdev
->cdev
[2];
5679 dev_set_drvdata(&gdev
->dev
, card
);
5681 gdev
->cdev
[0]->handler
= qeth_irq
;
5682 gdev
->cdev
[1]->handler
= qeth_irq
;
5683 gdev
->cdev
[2]->handler
= qeth_irq
;
5685 qeth_determine_card_type(card
);
5686 rc
= qeth_setup_card(card
);
5688 QETH_DBF_TEXT_(SETUP
, 2, "2err%d", rc
);
5692 qeth_determine_capabilities(card
);
5693 enforced_disc
= qeth_enforce_discipline(card
);
5694 switch (enforced_disc
) {
5695 case QETH_DISCIPLINE_UNDETERMINED
:
5696 gdev
->dev
.type
= &qeth_generic_devtype
;
5699 card
->info
.layer_enforced
= true;
5700 rc
= qeth_core_load_discipline(card
, enforced_disc
);
5704 gdev
->dev
.type
= (card
->info
.type
!= QETH_CARD_TYPE_OSN
)
5705 ? card
->discipline
->devtype
5706 : &qeth_osn_devtype
;
5707 rc
= card
->discipline
->setup(card
->gdev
);
5713 write_lock_irqsave(&qeth_core_card_list
.rwlock
, flags
);
5714 list_add_tail(&card
->list
, &qeth_core_card_list
.list
);
5715 write_unlock_irqrestore(&qeth_core_card_list
.rwlock
, flags
);
5719 qeth_core_free_discipline(card
);
5721 qeth_core_free_card(card
);
5727 static void qeth_core_remove_device(struct ccwgroup_device
*gdev
)
5729 unsigned long flags
;
5730 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5732 QETH_DBF_TEXT(SETUP
, 2, "removedv");
5734 if (card
->discipline
) {
5735 card
->discipline
->remove(gdev
);
5736 qeth_core_free_discipline(card
);
5739 write_lock_irqsave(&qeth_core_card_list
.rwlock
, flags
);
5740 list_del(&card
->list
);
5741 write_unlock_irqrestore(&qeth_core_card_list
.rwlock
, flags
);
5742 qeth_core_free_card(card
);
5743 dev_set_drvdata(&gdev
->dev
, NULL
);
5744 put_device(&gdev
->dev
);
5748 static int qeth_core_set_online(struct ccwgroup_device
*gdev
)
5750 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5752 enum qeth_discipline_id def_discipline
;
5754 if (!card
->discipline
) {
5755 if (card
->info
.type
== QETH_CARD_TYPE_IQD
)
5756 def_discipline
= QETH_DISCIPLINE_LAYER3
;
5758 def_discipline
= QETH_DISCIPLINE_LAYER2
;
5759 rc
= qeth_core_load_discipline(card
, def_discipline
);
5762 rc
= card
->discipline
->setup(card
->gdev
);
5764 qeth_core_free_discipline(card
);
5768 rc
= card
->discipline
->set_online(gdev
);
5773 static int qeth_core_set_offline(struct ccwgroup_device
*gdev
)
5775 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5776 return card
->discipline
->set_offline(gdev
);
5779 static void qeth_core_shutdown(struct ccwgroup_device
*gdev
)
5781 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5782 qeth_set_allowed_threads(card
, 0, 1);
5783 if ((gdev
->state
== CCWGROUP_ONLINE
) && card
->info
.hwtrap
)
5784 qeth_hw_trap(card
, QETH_DIAGS_TRAP_DISARM
);
5785 qeth_qdio_clear_card(card
, 0);
5786 qeth_clear_qdio_buffers(card
);
5787 qdio_free(CARD_DDEV(card
));
5790 static int qeth_core_freeze(struct ccwgroup_device
*gdev
)
5792 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5793 if (card
->discipline
&& card
->discipline
->freeze
)
5794 return card
->discipline
->freeze(gdev
);
5798 static int qeth_core_thaw(struct ccwgroup_device
*gdev
)
5800 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5801 if (card
->discipline
&& card
->discipline
->thaw
)
5802 return card
->discipline
->thaw(gdev
);
5806 static int qeth_core_restore(struct ccwgroup_device
*gdev
)
5808 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5809 if (card
->discipline
&& card
->discipline
->restore
)
5810 return card
->discipline
->restore(gdev
);
5814 static struct ccwgroup_driver qeth_core_ccwgroup_driver
= {
5816 .owner
= THIS_MODULE
,
5819 .ccw_driver
= &qeth_ccw_driver
,
5820 .setup
= qeth_core_probe_device
,
5821 .remove
= qeth_core_remove_device
,
5822 .set_online
= qeth_core_set_online
,
5823 .set_offline
= qeth_core_set_offline
,
5824 .shutdown
= qeth_core_shutdown
,
5827 .freeze
= qeth_core_freeze
,
5828 .thaw
= qeth_core_thaw
,
5829 .restore
= qeth_core_restore
,
5832 static ssize_t
group_store(struct device_driver
*ddrv
, const char *buf
,
5837 err
= ccwgroup_create_dev(qeth_core_root_dev
,
5838 &qeth_core_ccwgroup_driver
, 3, buf
);
5840 return err
? err
: count
;
5842 static DRIVER_ATTR_WO(group
);
5844 static struct attribute
*qeth_drv_attrs
[] = {
5845 &driver_attr_group
.attr
,
5848 static struct attribute_group qeth_drv_attr_group
= {
5849 .attrs
= qeth_drv_attrs
,
5851 static const struct attribute_group
*qeth_drv_attr_groups
[] = {
5852 &qeth_drv_attr_group
,
5856 int qeth_do_ioctl(struct net_device
*dev
, struct ifreq
*rq
, int cmd
)
5858 struct qeth_card
*card
= dev
->ml_priv
;
5859 struct mii_ioctl_data
*mii_data
;
5865 if (!qeth_card_hw_is_reachable(card
))
5868 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
5872 case SIOC_QETH_ADP_SET_SNMP_CONTROL
:
5873 rc
= qeth_snmp_command(card
, rq
->ifr_ifru
.ifru_data
);
5875 case SIOC_QETH_GET_CARD_TYPE
:
5876 if ((card
->info
.type
== QETH_CARD_TYPE_OSD
||
5877 card
->info
.type
== QETH_CARD_TYPE_OSM
||
5878 card
->info
.type
== QETH_CARD_TYPE_OSX
) &&
5879 !card
->info
.guestlan
)
5884 mii_data
= if_mii(rq
);
5885 mii_data
->phy_id
= 0;
5888 mii_data
= if_mii(rq
);
5889 if (mii_data
->phy_id
!= 0)
5892 mii_data
->val_out
= qeth_mdio_read(dev
,
5893 mii_data
->phy_id
, mii_data
->reg_num
);
5895 case SIOC_QETH_QUERY_OAT
:
5896 rc
= qeth_query_oat_command(card
, rq
->ifr_ifru
.ifru_data
);
5899 if (card
->discipline
->do_ioctl
)
5900 rc
= card
->discipline
->do_ioctl(dev
, rq
, cmd
);
5905 QETH_CARD_TEXT_(card
, 2, "ioce%x", rc
);
5908 EXPORT_SYMBOL_GPL(qeth_do_ioctl
);
5911 const char str
[ETH_GSTRING_LEN
];
5912 } qeth_ethtool_stats_keys
[] = {
5917 {"tx skbs no packing"},
5918 {"tx buffers no packing"},
5919 {"tx skbs packing"},
5920 {"tx buffers packing"},
5923 /* 10 */{"rx sg skbs"},
5925 {"rx sg page allocs"},
5926 {"tx large kbytes"},
5928 {"tx pk state ch n->p"},
5929 {"tx pk state ch p->n"},
5930 {"tx pk watermark low"},
5931 {"tx pk watermark high"},
5932 {"queue 0 buffer usage"},
5933 /* 20 */{"queue 1 buffer usage"},
5934 {"queue 2 buffer usage"},
5935 {"queue 3 buffer usage"},
5938 {"rx do_QDIO time"},
5939 {"rx do_QDIO count"},
5940 {"tx handler time"},
5941 {"tx handler count"},
5943 /* 30 */{"tx count"},
5944 {"tx do_QDIO time"},
5945 {"tx do_QDIO count"},
5949 {"cq handler count"},
5953 int qeth_core_get_sset_count(struct net_device
*dev
, int stringset
)
5955 switch (stringset
) {
5957 return (sizeof(qeth_ethtool_stats_keys
) / ETH_GSTRING_LEN
);
5962 EXPORT_SYMBOL_GPL(qeth_core_get_sset_count
);
5964 void qeth_core_get_ethtool_stats(struct net_device
*dev
,
5965 struct ethtool_stats
*stats
, u64
*data
)
5967 struct qeth_card
*card
= dev
->ml_priv
;
5968 data
[0] = card
->stats
.rx_packets
-
5969 card
->perf_stats
.initial_rx_packets
;
5970 data
[1] = card
->perf_stats
.bufs_rec
;
5971 data
[2] = card
->stats
.tx_packets
-
5972 card
->perf_stats
.initial_tx_packets
;
5973 data
[3] = card
->perf_stats
.bufs_sent
;
5974 data
[4] = card
->stats
.tx_packets
- card
->perf_stats
.initial_tx_packets
5975 - card
->perf_stats
.skbs_sent_pack
;
5976 data
[5] = card
->perf_stats
.bufs_sent
- card
->perf_stats
.bufs_sent_pack
;
5977 data
[6] = card
->perf_stats
.skbs_sent_pack
;
5978 data
[7] = card
->perf_stats
.bufs_sent_pack
;
5979 data
[8] = card
->perf_stats
.sg_skbs_sent
;
5980 data
[9] = card
->perf_stats
.sg_frags_sent
;
5981 data
[10] = card
->perf_stats
.sg_skbs_rx
;
5982 data
[11] = card
->perf_stats
.sg_frags_rx
;
5983 data
[12] = card
->perf_stats
.sg_alloc_page_rx
;
5984 data
[13] = (card
->perf_stats
.large_send_bytes
>> 10);
5985 data
[14] = card
->perf_stats
.large_send_cnt
;
5986 data
[15] = card
->perf_stats
.sc_dp_p
;
5987 data
[16] = card
->perf_stats
.sc_p_dp
;
5988 data
[17] = QETH_LOW_WATERMARK_PACK
;
5989 data
[18] = QETH_HIGH_WATERMARK_PACK
;
5990 data
[19] = atomic_read(&card
->qdio
.out_qs
[0]->used_buffers
);
5991 data
[20] = (card
->qdio
.no_out_queues
> 1) ?
5992 atomic_read(&card
->qdio
.out_qs
[1]->used_buffers
) : 0;
5993 data
[21] = (card
->qdio
.no_out_queues
> 2) ?
5994 atomic_read(&card
->qdio
.out_qs
[2]->used_buffers
) : 0;
5995 data
[22] = (card
->qdio
.no_out_queues
> 3) ?
5996 atomic_read(&card
->qdio
.out_qs
[3]->used_buffers
) : 0;
5997 data
[23] = card
->perf_stats
.inbound_time
;
5998 data
[24] = card
->perf_stats
.inbound_cnt
;
5999 data
[25] = card
->perf_stats
.inbound_do_qdio_time
;
6000 data
[26] = card
->perf_stats
.inbound_do_qdio_cnt
;
6001 data
[27] = card
->perf_stats
.outbound_handler_time
;
6002 data
[28] = card
->perf_stats
.outbound_handler_cnt
;
6003 data
[29] = card
->perf_stats
.outbound_time
;
6004 data
[30] = card
->perf_stats
.outbound_cnt
;
6005 data
[31] = card
->perf_stats
.outbound_do_qdio_time
;
6006 data
[32] = card
->perf_stats
.outbound_do_qdio_cnt
;
6007 data
[33] = card
->perf_stats
.tx_csum
;
6008 data
[34] = card
->perf_stats
.tx_lin
;
6009 data
[35] = card
->perf_stats
.tx_linfail
;
6010 data
[36] = card
->perf_stats
.cq_cnt
;
6011 data
[37] = card
->perf_stats
.cq_time
;
6013 EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats
);
6015 void qeth_core_get_strings(struct net_device
*dev
, u32 stringset
, u8
*data
)
6017 switch (stringset
) {
6019 memcpy(data
, &qeth_ethtool_stats_keys
,
6020 sizeof(qeth_ethtool_stats_keys
));
6027 EXPORT_SYMBOL_GPL(qeth_core_get_strings
);
6029 void qeth_core_get_drvinfo(struct net_device
*dev
,
6030 struct ethtool_drvinfo
*info
)
6032 struct qeth_card
*card
= dev
->ml_priv
;
6034 strlcpy(info
->driver
, card
->options
.layer2
? "qeth_l2" : "qeth_l3",
6035 sizeof(info
->driver
));
6036 strlcpy(info
->version
, "1.0", sizeof(info
->version
));
6037 strlcpy(info
->fw_version
, card
->info
.mcl_level
,
6038 sizeof(info
->fw_version
));
6039 snprintf(info
->bus_info
, sizeof(info
->bus_info
), "%s/%s/%s",
6040 CARD_RDEV_ID(card
), CARD_WDEV_ID(card
), CARD_DDEV_ID(card
));
6042 EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo
);
6044 /* Helper function to fill 'advertising' and 'supported' which are the same. */
6045 /* Autoneg and full-duplex are supported and advertised unconditionally. */
6046 /* Always advertise and support all speeds up to specified, and only one */
6047 /* specified port type. */
6048 static void qeth_set_cmd_adv_sup(struct ethtool_link_ksettings
*cmd
,
6049 int maxspeed
, int porttype
)
6051 ethtool_link_ksettings_zero_link_mode(cmd
, supported
);
6052 ethtool_link_ksettings_zero_link_mode(cmd
, advertising
);
6053 ethtool_link_ksettings_zero_link_mode(cmd
, lp_advertising
);
6055 ethtool_link_ksettings_add_link_mode(cmd
, supported
, Autoneg
);
6056 ethtool_link_ksettings_add_link_mode(cmd
, advertising
, Autoneg
);
6060 ethtool_link_ksettings_add_link_mode(cmd
, supported
, TP
);
6061 ethtool_link_ksettings_add_link_mode(cmd
, advertising
, TP
);
6064 ethtool_link_ksettings_add_link_mode(cmd
, supported
, FIBRE
);
6065 ethtool_link_ksettings_add_link_mode(cmd
, advertising
, FIBRE
);
6068 ethtool_link_ksettings_add_link_mode(cmd
, supported
, TP
);
6069 ethtool_link_ksettings_add_link_mode(cmd
, advertising
, TP
);
6073 /* fallthrough from high to low, to select all legal speeds: */
6076 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6078 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6081 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6083 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6085 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6087 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6090 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6092 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6094 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6096 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6099 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6101 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6103 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6105 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6107 /* end fallthrough */
6110 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6112 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6114 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6116 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6122 int qeth_core_ethtool_get_link_ksettings(struct net_device
*netdev
,
6123 struct ethtool_link_ksettings
*cmd
)
6125 struct qeth_card
*card
= netdev
->ml_priv
;
6126 enum qeth_link_types link_type
;
6127 struct carrier_info carrier_info
;
6130 if ((card
->info
.type
== QETH_CARD_TYPE_IQD
) || (card
->info
.guestlan
))
6131 link_type
= QETH_LINK_TYPE_10GBIT_ETH
;
6133 link_type
= card
->info
.link_type
;
6135 cmd
->base
.duplex
= DUPLEX_FULL
;
6136 cmd
->base
.autoneg
= AUTONEG_ENABLE
;
6137 cmd
->base
.phy_address
= 0;
6138 cmd
->base
.mdio_support
= 0;
6139 cmd
->base
.eth_tp_mdix
= ETH_TP_MDI_INVALID
;
6140 cmd
->base
.eth_tp_mdix_ctrl
= ETH_TP_MDI_INVALID
;
6142 switch (link_type
) {
6143 case QETH_LINK_TYPE_FAST_ETH
:
6144 case QETH_LINK_TYPE_LANE_ETH100
:
6145 cmd
->base
.speed
= SPEED_100
;
6146 cmd
->base
.port
= PORT_TP
;
6148 case QETH_LINK_TYPE_GBIT_ETH
:
6149 case QETH_LINK_TYPE_LANE_ETH1000
:
6150 cmd
->base
.speed
= SPEED_1000
;
6151 cmd
->base
.port
= PORT_FIBRE
;
6153 case QETH_LINK_TYPE_10GBIT_ETH
:
6154 cmd
->base
.speed
= SPEED_10000
;
6155 cmd
->base
.port
= PORT_FIBRE
;
6158 cmd
->base
.speed
= SPEED_10
;
6159 cmd
->base
.port
= PORT_TP
;
6161 qeth_set_cmd_adv_sup(cmd
, cmd
->base
.speed
, cmd
->base
.port
);
6163 /* Check if we can obtain more accurate information. */
6164 /* If QUERY_CARD_INFO command is not supported or fails, */
6165 /* just return the heuristics that was filled above. */
6166 if (!qeth_card_hw_is_reachable(card
))
6168 rc
= qeth_query_card_info(card
, &carrier_info
);
6169 if (rc
== -EOPNOTSUPP
) /* for old hardware, return heuristic */
6171 if (rc
) /* report error from the hardware operation */
6173 /* on success, fill in the information got from the hardware */
6176 "card info: card_type=0x%02x, port_mode=0x%04x, port_speed=0x%08x\n",
6177 carrier_info
.card_type
,
6178 carrier_info
.port_mode
,
6179 carrier_info
.port_speed
);
6181 /* Update attributes for which we've obtained more authoritative */
6182 /* information, leave the rest the way they where filled above. */
6183 switch (carrier_info
.card_type
) {
6184 case CARD_INFO_TYPE_1G_COPPER_A
:
6185 case CARD_INFO_TYPE_1G_COPPER_B
:
6186 cmd
->base
.port
= PORT_TP
;
6187 qeth_set_cmd_adv_sup(cmd
, SPEED_1000
, cmd
->base
.port
);
6189 case CARD_INFO_TYPE_1G_FIBRE_A
:
6190 case CARD_INFO_TYPE_1G_FIBRE_B
:
6191 cmd
->base
.port
= PORT_FIBRE
;
6192 qeth_set_cmd_adv_sup(cmd
, SPEED_1000
, cmd
->base
.port
);
6194 case CARD_INFO_TYPE_10G_FIBRE_A
:
6195 case CARD_INFO_TYPE_10G_FIBRE_B
:
6196 cmd
->base
.port
= PORT_FIBRE
;
6197 qeth_set_cmd_adv_sup(cmd
, SPEED_10000
, cmd
->base
.port
);
6201 switch (carrier_info
.port_mode
) {
6202 case CARD_INFO_PORTM_FULLDUPLEX
:
6203 cmd
->base
.duplex
= DUPLEX_FULL
;
6205 case CARD_INFO_PORTM_HALFDUPLEX
:
6206 cmd
->base
.duplex
= DUPLEX_HALF
;
6210 switch (carrier_info
.port_speed
) {
6211 case CARD_INFO_PORTS_10M
:
6212 cmd
->base
.speed
= SPEED_10
;
6214 case CARD_INFO_PORTS_100M
:
6215 cmd
->base
.speed
= SPEED_100
;
6217 case CARD_INFO_PORTS_1G
:
6218 cmd
->base
.speed
= SPEED_1000
;
6220 case CARD_INFO_PORTS_10G
:
6221 cmd
->base
.speed
= SPEED_10000
;
6227 EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_link_ksettings
);
6229 /* Callback to handle checksum offload command reply from OSA card.
6230 * Verify that required features have been enabled on the card.
6231 * Return error in hdr->return_code as this value is checked by caller.
6233 * Always returns zero to indicate no further messages from the OSA card.
6235 static int qeth_ipa_checksum_run_cmd_cb(struct qeth_card
*card
,
6236 struct qeth_reply
*reply
,
6239 struct qeth_ipa_cmd
*cmd
= (struct qeth_ipa_cmd
*) data
;
6240 struct qeth_checksum_cmd
*chksum_cb
=
6241 (struct qeth_checksum_cmd
*)reply
->param
;
6243 QETH_CARD_TEXT(card
, 4, "chkdoccb");
6244 if (cmd
->hdr
.return_code
)
6247 memset(chksum_cb
, 0, sizeof(*chksum_cb
));
6248 if (cmd
->data
.setassparms
.hdr
.command_code
== IPA_CMD_ASS_START
) {
6249 chksum_cb
->supported
=
6250 cmd
->data
.setassparms
.data
.chksum
.supported
;
6251 QETH_CARD_TEXT_(card
, 3, "strt:%x", chksum_cb
->supported
);
6253 if (cmd
->data
.setassparms
.hdr
.command_code
== IPA_CMD_ASS_ENABLE
) {
6254 chksum_cb
->supported
=
6255 cmd
->data
.setassparms
.data
.chksum
.supported
;
6256 chksum_cb
->enabled
=
6257 cmd
->data
.setassparms
.data
.chksum
.enabled
;
6258 QETH_CARD_TEXT_(card
, 3, "supp:%x", chksum_cb
->supported
);
6259 QETH_CARD_TEXT_(card
, 3, "enab:%x", chksum_cb
->enabled
);
6264 /* Send command to OSA card and check results. */
6265 static int qeth_ipa_checksum_run_cmd(struct qeth_card
*card
,
6266 enum qeth_ipa_funcs ipa_func
,
6267 __u16 cmd_code
, long data
,
6268 struct qeth_checksum_cmd
*chksum_cb
)
6270 struct qeth_cmd_buffer
*iob
;
6273 QETH_CARD_TEXT(card
, 4, "chkdocmd");
6274 iob
= qeth_get_setassparms_cmd(card
, ipa_func
, cmd_code
,
6275 sizeof(__u32
), QETH_PROT_IPV4
);
6277 rc
= qeth_send_setassparms(card
, iob
, sizeof(__u32
), data
,
6278 qeth_ipa_checksum_run_cmd_cb
,
6283 static int qeth_send_checksum_on(struct qeth_card
*card
, int cstype
)
6285 const __u32 required_features
= QETH_IPA_CHECKSUM_IP_HDR
|
6286 QETH_IPA_CHECKSUM_UDP
|
6287 QETH_IPA_CHECKSUM_TCP
;
6288 struct qeth_checksum_cmd chksum_cb
;
6291 rc
= qeth_ipa_checksum_run_cmd(card
, cstype
, IPA_CMD_ASS_START
, 0,
6294 if ((required_features
& chksum_cb
.supported
) !=
6297 else if (!(QETH_IPA_CHECKSUM_LP2LP
& chksum_cb
.supported
) &&
6298 cstype
== IPA_INBOUND_CHECKSUM
)
6299 dev_warn(&card
->gdev
->dev
,
6300 "Hardware checksumming is performed only if %s and its peer use different OSA Express 3 ports\n",
6301 QETH_CARD_IFNAME(card
));
6304 qeth_send_simple_setassparms(card
, cstype
, IPA_CMD_ASS_STOP
, 0);
6305 dev_warn(&card
->gdev
->dev
,
6306 "Starting HW checksumming for %s failed, using SW checksumming\n",
6307 QETH_CARD_IFNAME(card
));
6310 rc
= qeth_ipa_checksum_run_cmd(card
, cstype
, IPA_CMD_ASS_ENABLE
,
6311 chksum_cb
.supported
, &chksum_cb
);
6313 if ((required_features
& chksum_cb
.enabled
) !=
6318 qeth_send_simple_setassparms(card
, cstype
, IPA_CMD_ASS_STOP
, 0);
6319 dev_warn(&card
->gdev
->dev
,
6320 "Enabling HW checksumming for %s failed, using SW checksumming\n",
6321 QETH_CARD_IFNAME(card
));
6325 dev_info(&card
->gdev
->dev
, "HW Checksumming (%sbound) enabled\n",
6326 cstype
== IPA_INBOUND_CHECKSUM
? "in" : "out");
6330 static int qeth_set_ipa_csum(struct qeth_card
*card
, int on
, int cstype
)
6332 int rc
= (on
) ? qeth_send_checksum_on(card
, cstype
)
6333 : qeth_send_simple_setassparms(card
, cstype
,
6334 IPA_CMD_ASS_STOP
, 0);
6335 return rc
? -EIO
: 0;
6338 static int qeth_set_ipa_tso(struct qeth_card
*card
, int on
)
6342 QETH_CARD_TEXT(card
, 3, "sttso");
6345 rc
= qeth_send_simple_setassparms(card
, IPA_OUTBOUND_TSO
,
6346 IPA_CMD_ASS_START
, 0);
6348 dev_warn(&card
->gdev
->dev
,
6349 "Starting outbound TCP segmentation offload for %s failed\n",
6350 QETH_CARD_IFNAME(card
));
6353 dev_info(&card
->gdev
->dev
, "Outbound TSO enabled\n");
6355 rc
= qeth_send_simple_setassparms(card
, IPA_OUTBOUND_TSO
,
6356 IPA_CMD_ASS_STOP
, 0);
6361 #define QETH_HW_FEATURES (NETIF_F_RXCSUM | NETIF_F_IP_CSUM | NETIF_F_TSO)
6364 * qeth_recover_features() - Restore device features after recovery
6365 * @dev: the recovering net_device
6367 * Caller must hold rtnl lock.
6369 void qeth_recover_features(struct net_device
*dev
)
6371 netdev_features_t features
= dev
->features
;
6372 struct qeth_card
*card
= dev
->ml_priv
;
6374 /* force-off any feature that needs an IPA sequence.
6375 * netdev_update_features() will restart them.
6377 dev
->features
&= ~QETH_HW_FEATURES
;
6378 netdev_update_features(dev
);
6380 if (features
== dev
->features
)
6382 dev_warn(&card
->gdev
->dev
,
6383 "Device recovery failed to restore all offload features\n");
6385 EXPORT_SYMBOL_GPL(qeth_recover_features
);
6387 int qeth_set_features(struct net_device
*dev
, netdev_features_t features
)
6389 struct qeth_card
*card
= dev
->ml_priv
;
6390 netdev_features_t changed
= dev
->features
^ features
;
6393 QETH_DBF_TEXT(SETUP
, 2, "setfeat");
6394 QETH_DBF_HEX(SETUP
, 2, &features
, sizeof(features
));
6396 if ((changed
& NETIF_F_IP_CSUM
)) {
6397 rc
= qeth_set_ipa_csum(card
,
6398 features
& NETIF_F_IP_CSUM
? 1 : 0,
6399 IPA_OUTBOUND_CHECKSUM
);
6401 changed
^= NETIF_F_IP_CSUM
;
6403 if ((changed
& NETIF_F_RXCSUM
)) {
6404 rc
= qeth_set_ipa_csum(card
,
6405 features
& NETIF_F_RXCSUM
? 1 : 0,
6406 IPA_INBOUND_CHECKSUM
);
6408 changed
^= NETIF_F_RXCSUM
;
6410 if ((changed
& NETIF_F_TSO
)) {
6411 rc
= qeth_set_ipa_tso(card
, features
& NETIF_F_TSO
? 1 : 0);
6413 changed
^= NETIF_F_TSO
;
6416 /* everything changed successfully? */
6417 if ((dev
->features
^ features
) == changed
)
6419 /* something went wrong. save changed features and return error */
6420 dev
->features
^= changed
;
6423 EXPORT_SYMBOL_GPL(qeth_set_features
);
6425 netdev_features_t
qeth_fix_features(struct net_device
*dev
,
6426 netdev_features_t features
)
6428 struct qeth_card
*card
= dev
->ml_priv
;
6430 QETH_DBF_TEXT(SETUP
, 2, "fixfeat");
6431 if (!qeth_is_supported(card
, IPA_OUTBOUND_CHECKSUM
))
6432 features
&= ~NETIF_F_IP_CSUM
;
6433 if (!qeth_is_supported(card
, IPA_INBOUND_CHECKSUM
))
6434 features
&= ~NETIF_F_RXCSUM
;
6435 if (!qeth_is_supported(card
, IPA_OUTBOUND_TSO
))
6436 features
&= ~NETIF_F_TSO
;
6437 /* if the card isn't up, remove features that require hw changes */
6438 if (card
->state
== CARD_STATE_DOWN
||
6439 card
->state
== CARD_STATE_RECOVER
)
6440 features
&= ~QETH_HW_FEATURES
;
6441 QETH_DBF_HEX(SETUP
, 2, &features
, sizeof(features
));
6444 EXPORT_SYMBOL_GPL(qeth_fix_features
);
6446 netdev_features_t
qeth_features_check(struct sk_buff
*skb
,
6447 struct net_device
*dev
,
6448 netdev_features_t features
)
6450 /* GSO segmentation builds skbs with
6451 * a (small) linear part for the headers, and
6452 * page frags for the data.
6453 * Compared to a linear skb, the header-only part consumes an
6454 * additional buffer element. This reduces buffer utilization, and
6455 * hurts throughput. So compress small segments into one element.
6457 if (netif_needs_gso(skb
, features
)) {
6458 /* match skb_segment(): */
6459 unsigned int doffset
= skb
->data
- skb_mac_header(skb
);
6460 unsigned int hsize
= skb_shinfo(skb
)->gso_size
;
6461 unsigned int hroom
= skb_headroom(skb
);
6463 /* linearize only if resulting skb allocations are order-0: */
6464 if (SKB_DATA_ALIGN(hroom
+ doffset
+ hsize
) <= SKB_MAX_HEAD(0))
6465 features
&= ~NETIF_F_SG
;
6468 return vlan_features_check(skb
, features
);
6470 EXPORT_SYMBOL_GPL(qeth_features_check
);
6472 static int __init
qeth_core_init(void)
6476 pr_info("loading core functions\n");
6477 INIT_LIST_HEAD(&qeth_core_card_list
.list
);
6478 INIT_LIST_HEAD(&qeth_dbf_list
);
6479 rwlock_init(&qeth_core_card_list
.rwlock
);
6480 mutex_init(&qeth_mod_mutex
);
6482 qeth_wq
= create_singlethread_workqueue("qeth_wq");
6484 rc
= qeth_register_dbf_views();
6487 qeth_core_root_dev
= root_device_register("qeth");
6488 rc
= PTR_ERR_OR_ZERO(qeth_core_root_dev
);
6491 qeth_core_header_cache
= kmem_cache_create("qeth_hdr",
6492 sizeof(struct qeth_hdr
) + ETH_HLEN
, 64, 0, NULL
);
6493 if (!qeth_core_header_cache
) {
6497 qeth_qdio_outbuf_cache
= kmem_cache_create("qeth_buf",
6498 sizeof(struct qeth_qdio_out_buffer
), 0, 0, NULL
);
6499 if (!qeth_qdio_outbuf_cache
) {
6503 rc
= ccw_driver_register(&qeth_ccw_driver
);
6506 qeth_core_ccwgroup_driver
.driver
.groups
= qeth_drv_attr_groups
;
6507 rc
= ccwgroup_driver_register(&qeth_core_ccwgroup_driver
);
6514 ccw_driver_unregister(&qeth_ccw_driver
);
6516 kmem_cache_destroy(qeth_qdio_outbuf_cache
);
6518 kmem_cache_destroy(qeth_core_header_cache
);
6520 root_device_unregister(qeth_core_root_dev
);
6522 qeth_unregister_dbf_views();
6524 pr_err("Initializing the qeth device driver failed\n");
6528 static void __exit
qeth_core_exit(void)
6530 qeth_clear_dbf_list();
6531 destroy_workqueue(qeth_wq
);
6532 ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver
);
6533 ccw_driver_unregister(&qeth_ccw_driver
);
6534 kmem_cache_destroy(qeth_qdio_outbuf_cache
);
6535 kmem_cache_destroy(qeth_core_header_cache
);
6536 root_device_unregister(qeth_core_root_dev
);
6537 qeth_unregister_dbf_views();
6538 pr_info("core functions removed\n");
6541 module_init(qeth_core_init
);
6542 module_exit(qeth_core_exit
);
6543 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
6544 MODULE_DESCRIPTION("qeth core functions");
6545 MODULE_LICENSE("GPL");