2 * Copyright IBM Corp. 2007, 2009
3 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
4 * Frank Pavlic <fpavlic@de.ibm.com>,
5 * Thomas Spatzier <tspat@de.ibm.com>,
6 * Frank Blaschka <frank.blaschka@de.ibm.com>
9 #define KMSG_COMPONENT "qeth"
10 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
12 #include <linux/module.h>
13 #include <linux/moduleparam.h>
14 #include <linux/string.h>
15 #include <linux/errno.h>
16 #include <linux/kernel.h>
18 #include <linux/tcp.h>
19 #include <linux/mii.h>
20 #include <linux/kthread.h>
21 #include <linux/slab.h>
22 #include <net/iucv/af_iucv.h>
23 #include <net/dsfield.h>
25 #include <asm/ebcdic.h>
26 #include <asm/chpid.h>
28 #include <asm/sysinfo.h>
29 #include <asm/compat.h>
31 #include "qeth_core.h"
33 struct qeth_dbf_info qeth_dbf
[QETH_DBF_INFOS
] = {
34 /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */
36 [QETH_DBF_SETUP
] = {"qeth_setup",
37 8, 1, 8, 5, &debug_hex_ascii_view
, NULL
},
38 [QETH_DBF_MSG
] = {"qeth_msg", 8, 1, 11 * sizeof(long), 3,
39 &debug_sprintf_view
, NULL
},
40 [QETH_DBF_CTRL
] = {"qeth_control",
41 8, 1, QETH_DBF_CTRL_LEN
, 5, &debug_hex_ascii_view
, NULL
},
43 EXPORT_SYMBOL_GPL(qeth_dbf
);
45 struct qeth_card_list_struct qeth_core_card_list
;
46 EXPORT_SYMBOL_GPL(qeth_core_card_list
);
47 struct kmem_cache
*qeth_core_header_cache
;
48 EXPORT_SYMBOL_GPL(qeth_core_header_cache
);
49 static struct kmem_cache
*qeth_qdio_outbuf_cache
;
51 static struct device
*qeth_core_root_dev
;
52 static unsigned int known_devices
[][6] = QETH_MODELLIST_ARRAY
;
53 static struct lock_class_key qdio_out_skb_queue_key
;
54 static struct mutex qeth_mod_mutex
;
56 static void qeth_send_control_data_cb(struct qeth_channel
*,
57 struct qeth_cmd_buffer
*);
58 static struct qeth_cmd_buffer
*qeth_get_buffer(struct qeth_channel
*);
59 static void qeth_setup_ccw(struct qeth_channel
*, unsigned char *, __u32
);
60 static void qeth_free_buffer_pool(struct qeth_card
*);
61 static int qeth_qdio_establish(struct qeth_card
*);
62 static void qeth_free_qdio_buffers(struct qeth_card
*);
63 static void qeth_notify_skbs(struct qeth_qdio_out_q
*queue
,
64 struct qeth_qdio_out_buffer
*buf
,
65 enum iucv_tx_notify notification
);
66 static void qeth_release_skbs(struct qeth_qdio_out_buffer
*buf
);
67 static void qeth_clear_output_buffer(struct qeth_qdio_out_q
*queue
,
68 struct qeth_qdio_out_buffer
*buf
,
69 enum qeth_qdio_buffer_states newbufstate
);
70 static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q
*, int);
72 struct workqueue_struct
*qeth_wq
;
73 EXPORT_SYMBOL_GPL(qeth_wq
);
75 int qeth_card_hw_is_reachable(struct qeth_card
*card
)
77 return (card
->state
== CARD_STATE_SOFTSETUP
) ||
78 (card
->state
== CARD_STATE_UP
);
80 EXPORT_SYMBOL_GPL(qeth_card_hw_is_reachable
);
82 static void qeth_close_dev_handler(struct work_struct
*work
)
84 struct qeth_card
*card
;
86 card
= container_of(work
, struct qeth_card
, close_dev_work
);
87 QETH_CARD_TEXT(card
, 2, "cldevhdl");
91 ccwgroup_set_offline(card
->gdev
);
94 void qeth_close_dev(struct qeth_card
*card
)
96 QETH_CARD_TEXT(card
, 2, "cldevsubm");
97 queue_work(qeth_wq
, &card
->close_dev_work
);
99 EXPORT_SYMBOL_GPL(qeth_close_dev
);
101 static inline const char *qeth_get_cardname(struct qeth_card
*card
)
103 if (card
->info
.guestlan
) {
104 switch (card
->info
.type
) {
105 case QETH_CARD_TYPE_OSD
:
106 return " Virtual NIC QDIO";
107 case QETH_CARD_TYPE_IQD
:
108 return " Virtual NIC Hiper";
109 case QETH_CARD_TYPE_OSM
:
110 return " Virtual NIC QDIO - OSM";
111 case QETH_CARD_TYPE_OSX
:
112 return " Virtual NIC QDIO - OSX";
117 switch (card
->info
.type
) {
118 case QETH_CARD_TYPE_OSD
:
119 return " OSD Express";
120 case QETH_CARD_TYPE_IQD
:
121 return " HiperSockets";
122 case QETH_CARD_TYPE_OSN
:
124 case QETH_CARD_TYPE_OSM
:
126 case QETH_CARD_TYPE_OSX
:
135 /* max length to be returned: 14 */
136 const char *qeth_get_cardname_short(struct qeth_card
*card
)
138 if (card
->info
.guestlan
) {
139 switch (card
->info
.type
) {
140 case QETH_CARD_TYPE_OSD
:
141 return "Virt.NIC QDIO";
142 case QETH_CARD_TYPE_IQD
:
143 return "Virt.NIC Hiper";
144 case QETH_CARD_TYPE_OSM
:
145 return "Virt.NIC OSM";
146 case QETH_CARD_TYPE_OSX
:
147 return "Virt.NIC OSX";
152 switch (card
->info
.type
) {
153 case QETH_CARD_TYPE_OSD
:
154 switch (card
->info
.link_type
) {
155 case QETH_LINK_TYPE_FAST_ETH
:
157 case QETH_LINK_TYPE_HSTR
:
159 case QETH_LINK_TYPE_GBIT_ETH
:
161 case QETH_LINK_TYPE_10GBIT_ETH
:
163 case QETH_LINK_TYPE_LANE_ETH100
:
164 return "OSD_FE_LANE";
165 case QETH_LINK_TYPE_LANE_TR
:
166 return "OSD_TR_LANE";
167 case QETH_LINK_TYPE_LANE_ETH1000
:
168 return "OSD_GbE_LANE";
169 case QETH_LINK_TYPE_LANE
:
170 return "OSD_ATM_LANE";
172 return "OSD_Express";
174 case QETH_CARD_TYPE_IQD
:
175 return "HiperSockets";
176 case QETH_CARD_TYPE_OSN
:
178 case QETH_CARD_TYPE_OSM
:
180 case QETH_CARD_TYPE_OSX
:
189 void qeth_set_recovery_task(struct qeth_card
*card
)
191 card
->recovery_task
= current
;
193 EXPORT_SYMBOL_GPL(qeth_set_recovery_task
);
195 void qeth_clear_recovery_task(struct qeth_card
*card
)
197 card
->recovery_task
= NULL
;
199 EXPORT_SYMBOL_GPL(qeth_clear_recovery_task
);
201 static bool qeth_is_recovery_task(const struct qeth_card
*card
)
203 return card
->recovery_task
== current
;
206 void qeth_set_allowed_threads(struct qeth_card
*card
, unsigned long threads
,
207 int clear_start_mask
)
211 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
212 card
->thread_allowed_mask
= threads
;
213 if (clear_start_mask
)
214 card
->thread_start_mask
&= threads
;
215 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
216 wake_up(&card
->wait_q
);
218 EXPORT_SYMBOL_GPL(qeth_set_allowed_threads
);
220 int qeth_threads_running(struct qeth_card
*card
, unsigned long threads
)
225 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
226 rc
= (card
->thread_running_mask
& threads
);
227 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
230 EXPORT_SYMBOL_GPL(qeth_threads_running
);
232 int qeth_wait_for_threads(struct qeth_card
*card
, unsigned long threads
)
234 if (qeth_is_recovery_task(card
))
236 return wait_event_interruptible(card
->wait_q
,
237 qeth_threads_running(card
, threads
) == 0);
239 EXPORT_SYMBOL_GPL(qeth_wait_for_threads
);
241 void qeth_clear_working_pool_list(struct qeth_card
*card
)
243 struct qeth_buffer_pool_entry
*pool_entry
, *tmp
;
245 QETH_CARD_TEXT(card
, 5, "clwrklst");
246 list_for_each_entry_safe(pool_entry
, tmp
,
247 &card
->qdio
.in_buf_pool
.entry_list
, list
){
248 list_del(&pool_entry
->list
);
251 EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list
);
253 static int qeth_alloc_buffer_pool(struct qeth_card
*card
)
255 struct qeth_buffer_pool_entry
*pool_entry
;
259 QETH_CARD_TEXT(card
, 5, "alocpool");
260 for (i
= 0; i
< card
->qdio
.init_pool
.buf_count
; ++i
) {
261 pool_entry
= kzalloc(sizeof(*pool_entry
), GFP_KERNEL
);
263 qeth_free_buffer_pool(card
);
266 for (j
= 0; j
< QETH_MAX_BUFFER_ELEMENTS(card
); ++j
) {
267 ptr
= (void *) __get_free_page(GFP_KERNEL
);
270 free_page((unsigned long)
271 pool_entry
->elements
[--j
]);
273 qeth_free_buffer_pool(card
);
276 pool_entry
->elements
[j
] = ptr
;
278 list_add(&pool_entry
->init_list
,
279 &card
->qdio
.init_pool
.entry_list
);
284 int qeth_realloc_buffer_pool(struct qeth_card
*card
, int bufcnt
)
286 QETH_CARD_TEXT(card
, 2, "realcbp");
288 if ((card
->state
!= CARD_STATE_DOWN
) &&
289 (card
->state
!= CARD_STATE_RECOVER
))
292 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
293 qeth_clear_working_pool_list(card
);
294 qeth_free_buffer_pool(card
);
295 card
->qdio
.in_buf_pool
.buf_count
= bufcnt
;
296 card
->qdio
.init_pool
.buf_count
= bufcnt
;
297 return qeth_alloc_buffer_pool(card
);
299 EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool
);
301 static void qeth_free_qdio_queue(struct qeth_qdio_q
*q
)
306 qdio_free_buffers(q
->qdio_bufs
, QDIO_MAX_BUFFERS_PER_Q
);
310 static struct qeth_qdio_q
*qeth_alloc_qdio_queue(void)
312 struct qeth_qdio_q
*q
= kzalloc(sizeof(*q
), GFP_KERNEL
);
318 if (qdio_alloc_buffers(q
->qdio_bufs
, QDIO_MAX_BUFFERS_PER_Q
)) {
323 for (i
= 0; i
< QDIO_MAX_BUFFERS_PER_Q
; ++i
)
324 q
->bufs
[i
].buffer
= q
->qdio_bufs
[i
];
326 QETH_DBF_HEX(SETUP
, 2, &q
, sizeof(void *));
330 static inline int qeth_cq_init(struct qeth_card
*card
)
334 if (card
->options
.cq
== QETH_CQ_ENABLED
) {
335 QETH_DBF_TEXT(SETUP
, 2, "cqinit");
336 qdio_reset_buffers(card
->qdio
.c_q
->qdio_bufs
,
337 QDIO_MAX_BUFFERS_PER_Q
);
338 card
->qdio
.c_q
->next_buf_to_init
= 127;
339 rc
= do_QDIO(CARD_DDEV(card
), QDIO_FLAG_SYNC_INPUT
,
340 card
->qdio
.no_in_queues
- 1, 0,
343 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
352 static inline int qeth_alloc_cq(struct qeth_card
*card
)
356 if (card
->options
.cq
== QETH_CQ_ENABLED
) {
358 struct qdio_outbuf_state
*outbuf_states
;
360 QETH_DBF_TEXT(SETUP
, 2, "cqon");
361 card
->qdio
.c_q
= qeth_alloc_qdio_queue();
362 if (!card
->qdio
.c_q
) {
366 card
->qdio
.no_in_queues
= 2;
367 card
->qdio
.out_bufstates
=
368 kzalloc(card
->qdio
.no_out_queues
*
369 QDIO_MAX_BUFFERS_PER_Q
*
370 sizeof(struct qdio_outbuf_state
), GFP_KERNEL
);
371 outbuf_states
= card
->qdio
.out_bufstates
;
372 if (outbuf_states
== NULL
) {
376 for (i
= 0; i
< card
->qdio
.no_out_queues
; ++i
) {
377 card
->qdio
.out_qs
[i
]->bufstates
= outbuf_states
;
378 outbuf_states
+= QDIO_MAX_BUFFERS_PER_Q
;
381 QETH_DBF_TEXT(SETUP
, 2, "nocq");
382 card
->qdio
.c_q
= NULL
;
383 card
->qdio
.no_in_queues
= 1;
385 QETH_DBF_TEXT_(SETUP
, 2, "iqc%d", card
->qdio
.no_in_queues
);
390 qeth_free_qdio_queue(card
->qdio
.c_q
);
391 card
->qdio
.c_q
= NULL
;
393 dev_err(&card
->gdev
->dev
, "Failed to create completion queue\n");
397 static inline void qeth_free_cq(struct qeth_card
*card
)
399 if (card
->qdio
.c_q
) {
400 --card
->qdio
.no_in_queues
;
401 qeth_free_qdio_queue(card
->qdio
.c_q
);
402 card
->qdio
.c_q
= NULL
;
404 kfree(card
->qdio
.out_bufstates
);
405 card
->qdio
.out_bufstates
= NULL
;
408 static inline enum iucv_tx_notify
qeth_compute_cq_notification(int sbalf15
,
410 enum iucv_tx_notify n
;
414 n
= delayed
? TX_NOTIFY_DELAYED_OK
: TX_NOTIFY_OK
;
420 n
= delayed
? TX_NOTIFY_DELAYED_UNREACHABLE
:
421 TX_NOTIFY_UNREACHABLE
;
424 n
= delayed
? TX_NOTIFY_DELAYED_GENERALERROR
:
425 TX_NOTIFY_GENERALERROR
;
432 static inline void qeth_cleanup_handled_pending(struct qeth_qdio_out_q
*q
,
433 int bidx
, int forced_cleanup
)
435 if (q
->card
->options
.cq
!= QETH_CQ_ENABLED
)
438 if (q
->bufs
[bidx
]->next_pending
!= NULL
) {
439 struct qeth_qdio_out_buffer
*head
= q
->bufs
[bidx
];
440 struct qeth_qdio_out_buffer
*c
= q
->bufs
[bidx
]->next_pending
;
443 if (forced_cleanup
||
444 atomic_read(&c
->state
) ==
445 QETH_QDIO_BUF_HANDLED_DELAYED
) {
446 struct qeth_qdio_out_buffer
*f
= c
;
447 QETH_CARD_TEXT(f
->q
->card
, 5, "fp");
448 QETH_CARD_TEXT_(f
->q
->card
, 5, "%lx", (long) f
);
449 /* release here to avoid interleaving between
450 outbound tasklet and inbound tasklet
451 regarding notifications and lifecycle */
452 qeth_release_skbs(c
);
455 WARN_ON_ONCE(head
->next_pending
!= f
);
456 head
->next_pending
= c
;
457 kmem_cache_free(qeth_qdio_outbuf_cache
, f
);
465 if (forced_cleanup
&& (atomic_read(&(q
->bufs
[bidx
]->state
)) ==
466 QETH_QDIO_BUF_HANDLED_DELAYED
)) {
467 /* for recovery situations */
468 q
->bufs
[bidx
]->aob
= q
->bufstates
[bidx
].aob
;
469 qeth_init_qdio_out_buf(q
, bidx
);
470 QETH_CARD_TEXT(q
->card
, 2, "clprecov");
475 static inline void qeth_qdio_handle_aob(struct qeth_card
*card
,
476 unsigned long phys_aob_addr
) {
478 struct qeth_qdio_out_buffer
*buffer
;
479 enum iucv_tx_notify notification
;
481 aob
= (struct qaob
*) phys_to_virt(phys_aob_addr
);
482 QETH_CARD_TEXT(card
, 5, "haob");
483 QETH_CARD_TEXT_(card
, 5, "%lx", phys_aob_addr
);
484 buffer
= (struct qeth_qdio_out_buffer
*) aob
->user1
;
485 QETH_CARD_TEXT_(card
, 5, "%lx", aob
->user1
);
487 if (atomic_cmpxchg(&buffer
->state
, QETH_QDIO_BUF_PRIMED
,
488 QETH_QDIO_BUF_IN_CQ
) == QETH_QDIO_BUF_PRIMED
) {
489 notification
= TX_NOTIFY_OK
;
491 WARN_ON_ONCE(atomic_read(&buffer
->state
) !=
492 QETH_QDIO_BUF_PENDING
);
493 atomic_set(&buffer
->state
, QETH_QDIO_BUF_IN_CQ
);
494 notification
= TX_NOTIFY_DELAYED_OK
;
497 if (aob
->aorc
!= 0) {
498 QETH_CARD_TEXT_(card
, 2, "aorc%02X", aob
->aorc
);
499 notification
= qeth_compute_cq_notification(aob
->aorc
, 1);
501 qeth_notify_skbs(buffer
->q
, buffer
, notification
);
504 qeth_clear_output_buffer(buffer
->q
, buffer
,
505 QETH_QDIO_BUF_HANDLED_DELAYED
);
507 /* from here on: do not touch buffer anymore */
508 qdio_release_aob(aob
);
511 static inline int qeth_is_cq(struct qeth_card
*card
, unsigned int queue
)
513 return card
->options
.cq
== QETH_CQ_ENABLED
&&
514 card
->qdio
.c_q
!= NULL
&&
516 queue
== card
->qdio
.no_in_queues
- 1;
520 static int qeth_issue_next_read(struct qeth_card
*card
)
523 struct qeth_cmd_buffer
*iob
;
525 QETH_CARD_TEXT(card
, 5, "issnxrd");
526 if (card
->read
.state
!= CH_STATE_UP
)
528 iob
= qeth_get_buffer(&card
->read
);
530 dev_warn(&card
->gdev
->dev
, "The qeth device driver "
531 "failed to recover an error on the device\n");
532 QETH_DBF_MESSAGE(2, "%s issue_next_read failed: no iob "
533 "available\n", dev_name(&card
->gdev
->dev
));
536 qeth_setup_ccw(&card
->read
, iob
->data
, QETH_BUFSIZE
);
537 QETH_CARD_TEXT(card
, 6, "noirqpnd");
538 rc
= ccw_device_start(card
->read
.ccwdev
, &card
->read
.ccw
,
541 QETH_DBF_MESSAGE(2, "%s error in starting next read ccw! "
542 "rc=%i\n", dev_name(&card
->gdev
->dev
), rc
);
543 atomic_set(&card
->read
.irq_pending
, 0);
544 card
->read_or_write_problem
= 1;
545 qeth_schedule_recovery(card
);
546 wake_up(&card
->wait_q
);
551 static struct qeth_reply
*qeth_alloc_reply(struct qeth_card
*card
)
553 struct qeth_reply
*reply
;
555 reply
= kzalloc(sizeof(struct qeth_reply
), GFP_ATOMIC
);
557 atomic_set(&reply
->refcnt
, 1);
558 atomic_set(&reply
->received
, 0);
564 static void qeth_get_reply(struct qeth_reply
*reply
)
566 WARN_ON(atomic_read(&reply
->refcnt
) <= 0);
567 atomic_inc(&reply
->refcnt
);
570 static void qeth_put_reply(struct qeth_reply
*reply
)
572 WARN_ON(atomic_read(&reply
->refcnt
) <= 0);
573 if (atomic_dec_and_test(&reply
->refcnt
))
577 static void qeth_issue_ipa_msg(struct qeth_ipa_cmd
*cmd
, int rc
,
578 struct qeth_card
*card
)
581 int com
= cmd
->hdr
.command
;
582 ipa_name
= qeth_get_ipa_cmd_name(com
);
584 QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s/%s returned "
586 ipa_name
, com
, dev_name(&card
->gdev
->dev
),
587 QETH_CARD_IFNAME(card
), rc
,
588 qeth_get_ipa_msg(rc
));
590 QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s/%s succeeded\n",
591 ipa_name
, com
, dev_name(&card
->gdev
->dev
),
592 QETH_CARD_IFNAME(card
));
595 static struct qeth_ipa_cmd
*qeth_check_ipa_data(struct qeth_card
*card
,
596 struct qeth_cmd_buffer
*iob
)
598 struct qeth_ipa_cmd
*cmd
= NULL
;
600 QETH_CARD_TEXT(card
, 5, "chkipad");
601 if (IS_IPA(iob
->data
)) {
602 cmd
= (struct qeth_ipa_cmd
*) PDU_ENCAPSULATION(iob
->data
);
603 if (IS_IPA_REPLY(cmd
)) {
604 if (cmd
->hdr
.command
!= IPA_CMD_SETCCID
&&
605 cmd
->hdr
.command
!= IPA_CMD_DELCCID
&&
606 cmd
->hdr
.command
!= IPA_CMD_MODCCID
&&
607 cmd
->hdr
.command
!= IPA_CMD_SET_DIAG_ASS
)
608 qeth_issue_ipa_msg(cmd
,
609 cmd
->hdr
.return_code
, card
);
612 switch (cmd
->hdr
.command
) {
613 case IPA_CMD_STOPLAN
:
614 if (cmd
->hdr
.return_code
==
615 IPA_RC_VEPA_TO_VEB_TRANSITION
) {
616 dev_err(&card
->gdev
->dev
,
617 "Interface %s is down because the "
618 "adjacent port is no longer in "
619 "reflective relay mode\n",
620 QETH_CARD_IFNAME(card
));
621 qeth_close_dev(card
);
623 dev_warn(&card
->gdev
->dev
,
624 "The link for interface %s on CHPID"
626 QETH_CARD_IFNAME(card
),
628 qeth_issue_ipa_msg(cmd
,
629 cmd
->hdr
.return_code
, card
);
631 card
->lan_online
= 0;
632 if (card
->dev
&& netif_carrier_ok(card
->dev
))
633 netif_carrier_off(card
->dev
);
635 case IPA_CMD_STARTLAN
:
636 dev_info(&card
->gdev
->dev
,
637 "The link for %s on CHPID 0x%X has"
639 QETH_CARD_IFNAME(card
),
641 netif_carrier_on(card
->dev
);
642 card
->lan_online
= 1;
643 if (card
->info
.hwtrap
)
644 card
->info
.hwtrap
= 2;
645 qeth_schedule_recovery(card
);
647 case IPA_CMD_SETBRIDGEPORT_IQD
:
648 case IPA_CMD_SETBRIDGEPORT_OSA
:
649 case IPA_CMD_ADDRESS_CHANGE_NOTIF
:
650 if (card
->discipline
->control_event_handler
655 case IPA_CMD_MODCCID
:
657 case IPA_CMD_REGISTER_LOCAL_ADDR
:
658 QETH_CARD_TEXT(card
, 3, "irla");
660 case IPA_CMD_UNREGISTER_LOCAL_ADDR
:
661 QETH_CARD_TEXT(card
, 3, "urla");
664 QETH_DBF_MESSAGE(2, "Received data is IPA "
665 "but not a reply!\n");
673 void qeth_clear_ipacmd_list(struct qeth_card
*card
)
675 struct qeth_reply
*reply
, *r
;
678 QETH_CARD_TEXT(card
, 4, "clipalst");
680 spin_lock_irqsave(&card
->lock
, flags
);
681 list_for_each_entry_safe(reply
, r
, &card
->cmd_waiter_list
, list
) {
682 qeth_get_reply(reply
);
684 atomic_inc(&reply
->received
);
685 list_del_init(&reply
->list
);
686 wake_up(&reply
->wait_q
);
687 qeth_put_reply(reply
);
689 spin_unlock_irqrestore(&card
->lock
, flags
);
690 atomic_set(&card
->write
.irq_pending
, 0);
692 EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list
);
694 static int qeth_check_idx_response(struct qeth_card
*card
,
695 unsigned char *buffer
)
700 QETH_DBF_HEX(CTRL
, 2, buffer
, QETH_DBF_CTRL_LEN
);
701 if ((buffer
[2] & 0xc0) == 0xc0) {
702 QETH_DBF_MESSAGE(2, "received an IDX TERMINATE "
703 "with cause code 0x%02x%s\n",
705 ((buffer
[4] == 0x22) ?
706 " -- try another portname" : ""));
707 QETH_CARD_TEXT(card
, 2, "ckidxres");
708 QETH_CARD_TEXT(card
, 2, " idxterm");
709 QETH_CARD_TEXT_(card
, 2, " rc%d", -EIO
);
710 if (buffer
[4] == 0xf6) {
711 dev_err(&card
->gdev
->dev
,
712 "The qeth device is not configured "
713 "for the OSI layer required by z/VM\n");
721 static struct qeth_card
*CARD_FROM_CDEV(struct ccw_device
*cdev
)
723 struct qeth_card
*card
= dev_get_drvdata(&((struct ccwgroup_device
*)
724 dev_get_drvdata(&cdev
->dev
))->dev
);
728 static void qeth_setup_ccw(struct qeth_channel
*channel
, unsigned char *iob
,
731 struct qeth_card
*card
;
733 card
= CARD_FROM_CDEV(channel
->ccwdev
);
734 QETH_CARD_TEXT(card
, 4, "setupccw");
735 if (channel
== &card
->read
)
736 memcpy(&channel
->ccw
, READ_CCW
, sizeof(struct ccw1
));
738 memcpy(&channel
->ccw
, WRITE_CCW
, sizeof(struct ccw1
));
739 channel
->ccw
.count
= len
;
740 channel
->ccw
.cda
= (__u32
) __pa(iob
);
743 static struct qeth_cmd_buffer
*__qeth_get_buffer(struct qeth_channel
*channel
)
747 QETH_CARD_TEXT(CARD_FROM_CDEV(channel
->ccwdev
), 6, "getbuff");
748 index
= channel
->io_buf_no
;
750 if (channel
->iob
[index
].state
== BUF_STATE_FREE
) {
751 channel
->iob
[index
].state
= BUF_STATE_LOCKED
;
752 channel
->io_buf_no
= (channel
->io_buf_no
+ 1) %
754 memset(channel
->iob
[index
].data
, 0, QETH_BUFSIZE
);
755 return channel
->iob
+ index
;
757 index
= (index
+ 1) % QETH_CMD_BUFFER_NO
;
758 } while (index
!= channel
->io_buf_no
);
763 void qeth_release_buffer(struct qeth_channel
*channel
,
764 struct qeth_cmd_buffer
*iob
)
768 QETH_CARD_TEXT(CARD_FROM_CDEV(channel
->ccwdev
), 6, "relbuff");
769 spin_lock_irqsave(&channel
->iob_lock
, flags
);
770 memset(iob
->data
, 0, QETH_BUFSIZE
);
771 iob
->state
= BUF_STATE_FREE
;
772 iob
->callback
= qeth_send_control_data_cb
;
774 spin_unlock_irqrestore(&channel
->iob_lock
, flags
);
775 wake_up(&channel
->wait_q
);
777 EXPORT_SYMBOL_GPL(qeth_release_buffer
);
779 static struct qeth_cmd_buffer
*qeth_get_buffer(struct qeth_channel
*channel
)
781 struct qeth_cmd_buffer
*buffer
= NULL
;
784 spin_lock_irqsave(&channel
->iob_lock
, flags
);
785 buffer
= __qeth_get_buffer(channel
);
786 spin_unlock_irqrestore(&channel
->iob_lock
, flags
);
790 struct qeth_cmd_buffer
*qeth_wait_for_buffer(struct qeth_channel
*channel
)
792 struct qeth_cmd_buffer
*buffer
;
793 wait_event(channel
->wait_q
,
794 ((buffer
= qeth_get_buffer(channel
)) != NULL
));
797 EXPORT_SYMBOL_GPL(qeth_wait_for_buffer
);
799 void qeth_clear_cmd_buffers(struct qeth_channel
*channel
)
803 for (cnt
= 0; cnt
< QETH_CMD_BUFFER_NO
; cnt
++)
804 qeth_release_buffer(channel
, &channel
->iob
[cnt
]);
806 channel
->io_buf_no
= 0;
808 EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers
);
810 static void qeth_send_control_data_cb(struct qeth_channel
*channel
,
811 struct qeth_cmd_buffer
*iob
)
813 struct qeth_card
*card
;
814 struct qeth_reply
*reply
, *r
;
815 struct qeth_ipa_cmd
*cmd
;
820 card
= CARD_FROM_CDEV(channel
->ccwdev
);
821 QETH_CARD_TEXT(card
, 4, "sndctlcb");
822 rc
= qeth_check_idx_response(card
, iob
->data
);
827 qeth_clear_ipacmd_list(card
);
828 qeth_schedule_recovery(card
);
834 cmd
= qeth_check_ipa_data(card
, iob
);
835 if ((cmd
== NULL
) && (card
->state
!= CARD_STATE_DOWN
))
837 /*in case of OSN : check if cmd is set */
838 if (card
->info
.type
== QETH_CARD_TYPE_OSN
&&
840 cmd
->hdr
.command
!= IPA_CMD_STARTLAN
&&
841 card
->osn_info
.assist_cb
!= NULL
) {
842 card
->osn_info
.assist_cb(card
->dev
, cmd
);
846 spin_lock_irqsave(&card
->lock
, flags
);
847 list_for_each_entry_safe(reply
, r
, &card
->cmd_waiter_list
, list
) {
848 if ((reply
->seqno
== QETH_IDX_COMMAND_SEQNO
) ||
849 ((cmd
) && (reply
->seqno
== cmd
->hdr
.seqno
))) {
850 qeth_get_reply(reply
);
851 list_del_init(&reply
->list
);
852 spin_unlock_irqrestore(&card
->lock
, flags
);
854 if (reply
->callback
!= NULL
) {
856 reply
->offset
= (__u16
)((char *)cmd
-
858 keep_reply
= reply
->callback(card
,
862 keep_reply
= reply
->callback(card
,
867 reply
->rc
= (u16
) cmd
->hdr
.return_code
;
871 spin_lock_irqsave(&card
->lock
, flags
);
872 list_add_tail(&reply
->list
,
873 &card
->cmd_waiter_list
);
874 spin_unlock_irqrestore(&card
->lock
, flags
);
876 atomic_inc(&reply
->received
);
877 wake_up(&reply
->wait_q
);
879 qeth_put_reply(reply
);
883 spin_unlock_irqrestore(&card
->lock
, flags
);
885 memcpy(&card
->seqno
.pdu_hdr_ack
,
886 QETH_PDU_HEADER_SEQ_NO(iob
->data
),
888 qeth_release_buffer(channel
, iob
);
891 static int qeth_setup_channel(struct qeth_channel
*channel
)
895 QETH_DBF_TEXT(SETUP
, 2, "setupch");
896 for (cnt
= 0; cnt
< QETH_CMD_BUFFER_NO
; cnt
++) {
897 channel
->iob
[cnt
].data
=
898 kzalloc(QETH_BUFSIZE
, GFP_DMA
|GFP_KERNEL
);
899 if (channel
->iob
[cnt
].data
== NULL
)
901 channel
->iob
[cnt
].state
= BUF_STATE_FREE
;
902 channel
->iob
[cnt
].channel
= channel
;
903 channel
->iob
[cnt
].callback
= qeth_send_control_data_cb
;
904 channel
->iob
[cnt
].rc
= 0;
906 if (cnt
< QETH_CMD_BUFFER_NO
) {
908 kfree(channel
->iob
[cnt
].data
);
912 channel
->io_buf_no
= 0;
913 atomic_set(&channel
->irq_pending
, 0);
914 spin_lock_init(&channel
->iob_lock
);
916 init_waitqueue_head(&channel
->wait_q
);
920 static int qeth_set_thread_start_bit(struct qeth_card
*card
,
921 unsigned long thread
)
925 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
926 if (!(card
->thread_allowed_mask
& thread
) ||
927 (card
->thread_start_mask
& thread
)) {
928 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
931 card
->thread_start_mask
|= thread
;
932 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
936 void qeth_clear_thread_start_bit(struct qeth_card
*card
, unsigned long thread
)
940 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
941 card
->thread_start_mask
&= ~thread
;
942 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
943 wake_up(&card
->wait_q
);
945 EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit
);
947 void qeth_clear_thread_running_bit(struct qeth_card
*card
, unsigned long thread
)
951 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
952 card
->thread_running_mask
&= ~thread
;
953 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
954 wake_up(&card
->wait_q
);
956 EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit
);
958 static int __qeth_do_run_thread(struct qeth_card
*card
, unsigned long thread
)
963 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
964 if (card
->thread_start_mask
& thread
) {
965 if ((card
->thread_allowed_mask
& thread
) &&
966 !(card
->thread_running_mask
& thread
)) {
968 card
->thread_start_mask
&= ~thread
;
969 card
->thread_running_mask
|= thread
;
973 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
977 int qeth_do_run_thread(struct qeth_card
*card
, unsigned long thread
)
981 wait_event(card
->wait_q
,
982 (rc
= __qeth_do_run_thread(card
, thread
)) >= 0);
985 EXPORT_SYMBOL_GPL(qeth_do_run_thread
);
987 void qeth_schedule_recovery(struct qeth_card
*card
)
989 QETH_CARD_TEXT(card
, 2, "startrec");
990 if (qeth_set_thread_start_bit(card
, QETH_RECOVER_THREAD
) == 0)
991 schedule_work(&card
->kernel_thread_starter
);
993 EXPORT_SYMBOL_GPL(qeth_schedule_recovery
);
995 static int qeth_get_problem(struct ccw_device
*cdev
, struct irb
*irb
)
999 struct qeth_card
*card
;
1001 sense
= (char *) irb
->ecw
;
1002 cstat
= irb
->scsw
.cmd
.cstat
;
1003 dstat
= irb
->scsw
.cmd
.dstat
;
1004 card
= CARD_FROM_CDEV(cdev
);
1006 if (cstat
& (SCHN_STAT_CHN_CTRL_CHK
| SCHN_STAT_INTF_CTRL_CHK
|
1007 SCHN_STAT_CHN_DATA_CHK
| SCHN_STAT_CHAIN_CHECK
|
1008 SCHN_STAT_PROT_CHECK
| SCHN_STAT_PROG_CHECK
)) {
1009 QETH_CARD_TEXT(card
, 2, "CGENCHK");
1010 dev_warn(&cdev
->dev
, "The qeth device driver "
1011 "failed to recover an error on the device\n");
1012 QETH_DBF_MESSAGE(2, "%s check on device dstat=x%x, cstat=x%x\n",
1013 dev_name(&cdev
->dev
), dstat
, cstat
);
1014 print_hex_dump(KERN_WARNING
, "qeth: irb ", DUMP_PREFIX_OFFSET
,
1019 if (dstat
& DEV_STAT_UNIT_CHECK
) {
1020 if (sense
[SENSE_RESETTING_EVENT_BYTE
] &
1021 SENSE_RESETTING_EVENT_FLAG
) {
1022 QETH_CARD_TEXT(card
, 2, "REVIND");
1025 if (sense
[SENSE_COMMAND_REJECT_BYTE
] &
1026 SENSE_COMMAND_REJECT_FLAG
) {
1027 QETH_CARD_TEXT(card
, 2, "CMDREJi");
1030 if ((sense
[2] == 0xaf) && (sense
[3] == 0xfe)) {
1031 QETH_CARD_TEXT(card
, 2, "AFFE");
1034 if ((!sense
[0]) && (!sense
[1]) && (!sense
[2]) && (!sense
[3])) {
1035 QETH_CARD_TEXT(card
, 2, "ZEROSEN");
1038 QETH_CARD_TEXT(card
, 2, "DGENCHK");
1044 static long __qeth_check_irb_error(struct ccw_device
*cdev
,
1045 unsigned long intparm
, struct irb
*irb
)
1047 struct qeth_card
*card
;
1049 card
= CARD_FROM_CDEV(cdev
);
1051 if (!card
|| !IS_ERR(irb
))
1054 switch (PTR_ERR(irb
)) {
1056 QETH_DBF_MESSAGE(2, "%s i/o-error on device\n",
1057 dev_name(&cdev
->dev
));
1058 QETH_CARD_TEXT(card
, 2, "ckirberr");
1059 QETH_CARD_TEXT_(card
, 2, " rc%d", -EIO
);
1062 dev_warn(&cdev
->dev
, "A hardware operation timed out"
1063 " on the device\n");
1064 QETH_CARD_TEXT(card
, 2, "ckirberr");
1065 QETH_CARD_TEXT_(card
, 2, " rc%d", -ETIMEDOUT
);
1066 if (intparm
== QETH_RCD_PARM
) {
1067 if (card
->data
.ccwdev
== cdev
) {
1068 card
->data
.state
= CH_STATE_DOWN
;
1069 wake_up(&card
->wait_q
);
1074 QETH_DBF_MESSAGE(2, "%s unknown error %ld on device\n",
1075 dev_name(&cdev
->dev
), PTR_ERR(irb
));
1076 QETH_CARD_TEXT(card
, 2, "ckirberr");
1077 QETH_CARD_TEXT(card
, 2, " rc???");
1079 return PTR_ERR(irb
);
1082 static void qeth_irq(struct ccw_device
*cdev
, unsigned long intparm
,
1087 struct qeth_cmd_buffer
*buffer
;
1088 struct qeth_channel
*channel
;
1089 struct qeth_card
*card
;
1090 struct qeth_cmd_buffer
*iob
;
1093 if (__qeth_check_irb_error(cdev
, intparm
, irb
))
1095 cstat
= irb
->scsw
.cmd
.cstat
;
1096 dstat
= irb
->scsw
.cmd
.dstat
;
1098 card
= CARD_FROM_CDEV(cdev
);
1102 QETH_CARD_TEXT(card
, 5, "irq");
1104 if (card
->read
.ccwdev
== cdev
) {
1105 channel
= &card
->read
;
1106 QETH_CARD_TEXT(card
, 5, "read");
1107 } else if (card
->write
.ccwdev
== cdev
) {
1108 channel
= &card
->write
;
1109 QETH_CARD_TEXT(card
, 5, "write");
1111 channel
= &card
->data
;
1112 QETH_CARD_TEXT(card
, 5, "data");
1114 atomic_set(&channel
->irq_pending
, 0);
1116 if (irb
->scsw
.cmd
.fctl
& (SCSW_FCTL_CLEAR_FUNC
))
1117 channel
->state
= CH_STATE_STOPPED
;
1119 if (irb
->scsw
.cmd
.fctl
& (SCSW_FCTL_HALT_FUNC
))
1120 channel
->state
= CH_STATE_HALTED
;
1122 /*let's wake up immediately on data channel*/
1123 if ((channel
== &card
->data
) && (intparm
!= 0) &&
1124 (intparm
!= QETH_RCD_PARM
))
1127 if (intparm
== QETH_CLEAR_CHANNEL_PARM
) {
1128 QETH_CARD_TEXT(card
, 6, "clrchpar");
1129 /* we don't have to handle this further */
1132 if (intparm
== QETH_HALT_CHANNEL_PARM
) {
1133 QETH_CARD_TEXT(card
, 6, "hltchpar");
1134 /* we don't have to handle this further */
1137 if ((dstat
& DEV_STAT_UNIT_EXCEP
) ||
1138 (dstat
& DEV_STAT_UNIT_CHECK
) ||
1140 if (irb
->esw
.esw0
.erw
.cons
) {
1141 dev_warn(&channel
->ccwdev
->dev
,
1142 "The qeth device driver failed to recover "
1143 "an error on the device\n");
1144 QETH_DBF_MESSAGE(2, "%s sense data available. cstat "
1145 "0x%X dstat 0x%X\n",
1146 dev_name(&channel
->ccwdev
->dev
), cstat
, dstat
);
1147 print_hex_dump(KERN_WARNING
, "qeth: irb ",
1148 DUMP_PREFIX_OFFSET
, 16, 1, irb
, 32, 1);
1149 print_hex_dump(KERN_WARNING
, "qeth: sense data ",
1150 DUMP_PREFIX_OFFSET
, 16, 1, irb
->ecw
, 32, 1);
1152 if (intparm
== QETH_RCD_PARM
) {
1153 channel
->state
= CH_STATE_DOWN
;
1156 rc
= qeth_get_problem(cdev
, irb
);
1158 qeth_clear_ipacmd_list(card
);
1159 qeth_schedule_recovery(card
);
1164 if (intparm
== QETH_RCD_PARM
) {
1165 channel
->state
= CH_STATE_RCD_DONE
;
1169 buffer
= (struct qeth_cmd_buffer
*) __va((addr_t
)intparm
);
1170 buffer
->state
= BUF_STATE_PROCESSED
;
1172 if (channel
== &card
->data
)
1174 if (channel
== &card
->read
&&
1175 channel
->state
== CH_STATE_UP
)
1176 qeth_issue_next_read(card
);
1179 index
= channel
->buf_no
;
1180 while (iob
[index
].state
== BUF_STATE_PROCESSED
) {
1181 if (iob
[index
].callback
!= NULL
)
1182 iob
[index
].callback(channel
, iob
+ index
);
1184 index
= (index
+ 1) % QETH_CMD_BUFFER_NO
;
1186 channel
->buf_no
= index
;
1188 wake_up(&card
->wait_q
);
1192 static void qeth_notify_skbs(struct qeth_qdio_out_q
*q
,
1193 struct qeth_qdio_out_buffer
*buf
,
1194 enum iucv_tx_notify notification
)
1196 struct sk_buff
*skb
;
1198 if (skb_queue_empty(&buf
->skb_list
))
1200 skb
= skb_peek(&buf
->skb_list
);
1202 QETH_CARD_TEXT_(q
->card
, 5, "skbn%d", notification
);
1203 QETH_CARD_TEXT_(q
->card
, 5, "%lx", (long) skb
);
1204 if (be16_to_cpu(skb
->protocol
) == ETH_P_AF_IUCV
) {
1206 struct iucv_sock
*iucv
= iucv_sk(skb
->sk
);
1207 iucv
->sk_txnotify(skb
, notification
);
1210 if (skb_queue_is_last(&buf
->skb_list
, skb
))
1213 skb
= skb_queue_next(&buf
->skb_list
, skb
);
1219 static void qeth_release_skbs(struct qeth_qdio_out_buffer
*buf
)
1221 struct sk_buff
*skb
;
1222 struct iucv_sock
*iucv
;
1223 int notify_general_error
= 0;
1225 if (atomic_read(&buf
->state
) == QETH_QDIO_BUF_PENDING
)
1226 notify_general_error
= 1;
1228 /* release may never happen from within CQ tasklet scope */
1229 WARN_ON_ONCE(atomic_read(&buf
->state
) == QETH_QDIO_BUF_IN_CQ
);
1231 skb
= skb_dequeue(&buf
->skb_list
);
1233 QETH_CARD_TEXT(buf
->q
->card
, 5, "skbr");
1234 QETH_CARD_TEXT_(buf
->q
->card
, 5, "%lx", (long) skb
);
1235 if (notify_general_error
&&
1236 be16_to_cpu(skb
->protocol
) == ETH_P_AF_IUCV
) {
1238 iucv
= iucv_sk(skb
->sk
);
1239 iucv
->sk_txnotify(skb
, TX_NOTIFY_GENERALERROR
);
1242 atomic_dec(&skb
->users
);
1243 dev_kfree_skb_any(skb
);
1244 skb
= skb_dequeue(&buf
->skb_list
);
1248 static void qeth_clear_output_buffer(struct qeth_qdio_out_q
*queue
,
1249 struct qeth_qdio_out_buffer
*buf
,
1250 enum qeth_qdio_buffer_states newbufstate
)
1254 /* is PCI flag set on buffer? */
1255 if (buf
->buffer
->element
[0].sflags
& SBAL_SFLAGS0_PCI_REQ
)
1256 atomic_dec(&queue
->set_pci_flags_count
);
1258 if (newbufstate
== QETH_QDIO_BUF_EMPTY
) {
1259 qeth_release_skbs(buf
);
1261 for (i
= 0; i
< QETH_MAX_BUFFER_ELEMENTS(queue
->card
); ++i
) {
1262 if (buf
->buffer
->element
[i
].addr
&& buf
->is_header
[i
])
1263 kmem_cache_free(qeth_core_header_cache
,
1264 buf
->buffer
->element
[i
].addr
);
1265 buf
->is_header
[i
] = 0;
1266 buf
->buffer
->element
[i
].length
= 0;
1267 buf
->buffer
->element
[i
].addr
= NULL
;
1268 buf
->buffer
->element
[i
].eflags
= 0;
1269 buf
->buffer
->element
[i
].sflags
= 0;
1271 buf
->buffer
->element
[15].eflags
= 0;
1272 buf
->buffer
->element
[15].sflags
= 0;
1273 buf
->next_element_to_fill
= 0;
1274 atomic_set(&buf
->state
, newbufstate
);
1277 static void qeth_clear_outq_buffers(struct qeth_qdio_out_q
*q
, int free
)
1281 for (j
= 0; j
< QDIO_MAX_BUFFERS_PER_Q
; ++j
) {
1284 qeth_cleanup_handled_pending(q
, j
, 1);
1285 qeth_clear_output_buffer(q
, q
->bufs
[j
], QETH_QDIO_BUF_EMPTY
);
1287 kmem_cache_free(qeth_qdio_outbuf_cache
, q
->bufs
[j
]);
1293 void qeth_clear_qdio_buffers(struct qeth_card
*card
)
1297 QETH_CARD_TEXT(card
, 2, "clearqdbf");
1298 /* clear outbound buffers to free skbs */
1299 for (i
= 0; i
< card
->qdio
.no_out_queues
; ++i
) {
1300 if (card
->qdio
.out_qs
[i
]) {
1301 qeth_clear_outq_buffers(card
->qdio
.out_qs
[i
], 0);
1305 EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers
);
1307 static void qeth_free_buffer_pool(struct qeth_card
*card
)
1309 struct qeth_buffer_pool_entry
*pool_entry
, *tmp
;
1311 list_for_each_entry_safe(pool_entry
, tmp
,
1312 &card
->qdio
.init_pool
.entry_list
, init_list
){
1313 for (i
= 0; i
< QETH_MAX_BUFFER_ELEMENTS(card
); ++i
)
1314 free_page((unsigned long)pool_entry
->elements
[i
]);
1315 list_del(&pool_entry
->init_list
);
1320 static void qeth_clean_channel(struct qeth_channel
*channel
)
1324 QETH_DBF_TEXT(SETUP
, 2, "freech");
1325 for (cnt
= 0; cnt
< QETH_CMD_BUFFER_NO
; cnt
++)
1326 kfree(channel
->iob
[cnt
].data
);
1329 static void qeth_set_single_write_queues(struct qeth_card
*card
)
1331 if ((atomic_read(&card
->qdio
.state
) != QETH_QDIO_UNINITIALIZED
) &&
1332 (card
->qdio
.no_out_queues
== 4))
1333 qeth_free_qdio_buffers(card
);
1335 card
->qdio
.no_out_queues
= 1;
1336 if (card
->qdio
.default_out_queue
!= 0)
1337 dev_info(&card
->gdev
->dev
, "Priority Queueing not supported\n");
1339 card
->qdio
.default_out_queue
= 0;
1342 static void qeth_set_multiple_write_queues(struct qeth_card
*card
)
1344 if ((atomic_read(&card
->qdio
.state
) != QETH_QDIO_UNINITIALIZED
) &&
1345 (card
->qdio
.no_out_queues
== 1)) {
1346 qeth_free_qdio_buffers(card
);
1347 card
->qdio
.default_out_queue
= 2;
1349 card
->qdio
.no_out_queues
= 4;
1352 static void qeth_update_from_chp_desc(struct qeth_card
*card
)
1354 struct ccw_device
*ccwdev
;
1355 struct channel_path_desc
*chp_dsc
;
1357 QETH_DBF_TEXT(SETUP
, 2, "chp_desc");
1359 ccwdev
= card
->data
.ccwdev
;
1360 chp_dsc
= ccw_device_get_chp_desc(ccwdev
, 0);
1364 card
->info
.func_level
= 0x4100 + chp_dsc
->desc
;
1365 if (card
->info
.type
== QETH_CARD_TYPE_IQD
)
1368 /* CHPP field bit 6 == 1 -> single queue */
1369 if ((chp_dsc
->chpp
& 0x02) == 0x02)
1370 qeth_set_single_write_queues(card
);
1372 qeth_set_multiple_write_queues(card
);
1375 QETH_DBF_TEXT_(SETUP
, 2, "nr:%x", card
->qdio
.no_out_queues
);
1376 QETH_DBF_TEXT_(SETUP
, 2, "lvl:%02x", card
->info
.func_level
);
1379 static void qeth_init_qdio_info(struct qeth_card
*card
)
1381 QETH_DBF_TEXT(SETUP
, 4, "intqdinf");
1382 atomic_set(&card
->qdio
.state
, QETH_QDIO_UNINITIALIZED
);
1384 card
->qdio
.in_buf_size
= QETH_IN_BUF_SIZE_DEFAULT
;
1385 if (card
->info
.type
== QETH_CARD_TYPE_IQD
)
1386 card
->qdio
.init_pool
.buf_count
= QETH_IN_BUF_COUNT_HSDEFAULT
;
1388 card
->qdio
.init_pool
.buf_count
= QETH_IN_BUF_COUNT_DEFAULT
;
1389 card
->qdio
.in_buf_pool
.buf_count
= card
->qdio
.init_pool
.buf_count
;
1390 INIT_LIST_HEAD(&card
->qdio
.in_buf_pool
.entry_list
);
1391 INIT_LIST_HEAD(&card
->qdio
.init_pool
.entry_list
);
1394 static void qeth_set_intial_options(struct qeth_card
*card
)
1396 card
->options
.route4
.type
= NO_ROUTER
;
1397 card
->options
.route6
.type
= NO_ROUTER
;
1398 card
->options
.fake_broadcast
= 0;
1399 card
->options
.performance_stats
= 0;
1400 card
->options
.rx_sg_cb
= QETH_RX_SG_CB
;
1401 card
->options
.isolation
= ISOLATION_MODE_NONE
;
1402 card
->options
.cq
= QETH_CQ_DISABLED
;
1405 static int qeth_do_start_thread(struct qeth_card
*card
, unsigned long thread
)
1407 unsigned long flags
;
1410 spin_lock_irqsave(&card
->thread_mask_lock
, flags
);
1411 QETH_CARD_TEXT_(card
, 4, " %02x%02x%02x",
1412 (u8
) card
->thread_start_mask
,
1413 (u8
) card
->thread_allowed_mask
,
1414 (u8
) card
->thread_running_mask
);
1415 rc
= (card
->thread_start_mask
& thread
);
1416 spin_unlock_irqrestore(&card
->thread_mask_lock
, flags
);
1420 static void qeth_start_kernel_thread(struct work_struct
*work
)
1422 struct task_struct
*ts
;
1423 struct qeth_card
*card
= container_of(work
, struct qeth_card
,
1424 kernel_thread_starter
);
1425 QETH_CARD_TEXT(card
, 2, "strthrd");
1427 if (card
->read
.state
!= CH_STATE_UP
&&
1428 card
->write
.state
!= CH_STATE_UP
)
1430 if (qeth_do_start_thread(card
, QETH_RECOVER_THREAD
)) {
1431 ts
= kthread_run(card
->discipline
->recover
, (void *)card
,
1434 qeth_clear_thread_start_bit(card
, QETH_RECOVER_THREAD
);
1435 qeth_clear_thread_running_bit(card
,
1436 QETH_RECOVER_THREAD
);
1441 static void qeth_buffer_reclaim_work(struct work_struct
*);
1442 static int qeth_setup_card(struct qeth_card
*card
)
1445 QETH_DBF_TEXT(SETUP
, 2, "setupcrd");
1446 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
1448 card
->read
.state
= CH_STATE_DOWN
;
1449 card
->write
.state
= CH_STATE_DOWN
;
1450 card
->data
.state
= CH_STATE_DOWN
;
1451 card
->state
= CARD_STATE_DOWN
;
1452 card
->lan_online
= 0;
1453 card
->read_or_write_problem
= 0;
1455 spin_lock_init(&card
->vlanlock
);
1456 spin_lock_init(&card
->mclock
);
1457 spin_lock_init(&card
->lock
);
1458 spin_lock_init(&card
->ip_lock
);
1459 spin_lock_init(&card
->thread_mask_lock
);
1460 mutex_init(&card
->conf_mutex
);
1461 mutex_init(&card
->discipline_mutex
);
1462 card
->thread_start_mask
= 0;
1463 card
->thread_allowed_mask
= 0;
1464 card
->thread_running_mask
= 0;
1465 INIT_WORK(&card
->kernel_thread_starter
, qeth_start_kernel_thread
);
1466 INIT_LIST_HEAD(&card
->cmd_waiter_list
);
1467 init_waitqueue_head(&card
->wait_q
);
1468 /* initial options */
1469 qeth_set_intial_options(card
);
1470 /* IP address takeover */
1471 INIT_LIST_HEAD(&card
->ipato
.entries
);
1472 card
->ipato
.enabled
= 0;
1473 card
->ipato
.invert4
= 0;
1474 card
->ipato
.invert6
= 0;
1475 /* init QDIO stuff */
1476 qeth_init_qdio_info(card
);
1477 INIT_DELAYED_WORK(&card
->buffer_reclaim_work
, qeth_buffer_reclaim_work
);
1478 INIT_WORK(&card
->close_dev_work
, qeth_close_dev_handler
);
1482 static void qeth_core_sl_print(struct seq_file
*m
, struct service_level
*slr
)
1484 struct qeth_card
*card
= container_of(slr
, struct qeth_card
,
1485 qeth_service_level
);
1486 if (card
->info
.mcl_level
[0])
1487 seq_printf(m
, "qeth: %s firmware level %s\n",
1488 CARD_BUS_ID(card
), card
->info
.mcl_level
);
1491 static struct qeth_card
*qeth_alloc_card(void)
1493 struct qeth_card
*card
;
1495 QETH_DBF_TEXT(SETUP
, 2, "alloccrd");
1496 card
= kzalloc(sizeof(struct qeth_card
), GFP_DMA
|GFP_KERNEL
);
1499 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
1500 if (qeth_setup_channel(&card
->read
))
1502 if (qeth_setup_channel(&card
->write
))
1504 card
->options
.layer2
= -1;
1505 card
->qeth_service_level
.seq_print
= qeth_core_sl_print
;
1506 register_service_level(&card
->qeth_service_level
);
1510 qeth_clean_channel(&card
->read
);
1517 static int qeth_determine_card_type(struct qeth_card
*card
)
1521 QETH_DBF_TEXT(SETUP
, 2, "detcdtyp");
1523 card
->qdio
.do_prio_queueing
= QETH_PRIOQ_DEFAULT
;
1524 card
->qdio
.default_out_queue
= QETH_DEFAULT_QUEUE
;
1525 while (known_devices
[i
][QETH_DEV_MODEL_IND
]) {
1526 if ((CARD_RDEV(card
)->id
.dev_type
==
1527 known_devices
[i
][QETH_DEV_TYPE_IND
]) &&
1528 (CARD_RDEV(card
)->id
.dev_model
==
1529 known_devices
[i
][QETH_DEV_MODEL_IND
])) {
1530 card
->info
.type
= known_devices
[i
][QETH_DEV_MODEL_IND
];
1531 card
->qdio
.no_out_queues
=
1532 known_devices
[i
][QETH_QUEUE_NO_IND
];
1533 card
->qdio
.no_in_queues
= 1;
1534 card
->info
.is_multicast_different
=
1535 known_devices
[i
][QETH_MULTICAST_IND
];
1536 qeth_update_from_chp_desc(card
);
1541 card
->info
.type
= QETH_CARD_TYPE_UNKNOWN
;
1542 dev_err(&card
->gdev
->dev
, "The adapter hardware is of an "
1547 static int qeth_clear_channel(struct qeth_channel
*channel
)
1549 unsigned long flags
;
1550 struct qeth_card
*card
;
1553 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1554 QETH_CARD_TEXT(card
, 3, "clearch");
1555 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
1556 rc
= ccw_device_clear(channel
->ccwdev
, QETH_CLEAR_CHANNEL_PARM
);
1557 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
1561 rc
= wait_event_interruptible_timeout(card
->wait_q
,
1562 channel
->state
== CH_STATE_STOPPED
, QETH_TIMEOUT
);
1563 if (rc
== -ERESTARTSYS
)
1565 if (channel
->state
!= CH_STATE_STOPPED
)
1567 channel
->state
= CH_STATE_DOWN
;
1571 static int qeth_halt_channel(struct qeth_channel
*channel
)
1573 unsigned long flags
;
1574 struct qeth_card
*card
;
1577 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1578 QETH_CARD_TEXT(card
, 3, "haltch");
1579 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
1580 rc
= ccw_device_halt(channel
->ccwdev
, QETH_HALT_CHANNEL_PARM
);
1581 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
1585 rc
= wait_event_interruptible_timeout(card
->wait_q
,
1586 channel
->state
== CH_STATE_HALTED
, QETH_TIMEOUT
);
1587 if (rc
== -ERESTARTSYS
)
1589 if (channel
->state
!= CH_STATE_HALTED
)
1594 static int qeth_halt_channels(struct qeth_card
*card
)
1596 int rc1
= 0, rc2
= 0, rc3
= 0;
1598 QETH_CARD_TEXT(card
, 3, "haltchs");
1599 rc1
= qeth_halt_channel(&card
->read
);
1600 rc2
= qeth_halt_channel(&card
->write
);
1601 rc3
= qeth_halt_channel(&card
->data
);
1609 static int qeth_clear_channels(struct qeth_card
*card
)
1611 int rc1
= 0, rc2
= 0, rc3
= 0;
1613 QETH_CARD_TEXT(card
, 3, "clearchs");
1614 rc1
= qeth_clear_channel(&card
->read
);
1615 rc2
= qeth_clear_channel(&card
->write
);
1616 rc3
= qeth_clear_channel(&card
->data
);
1624 static int qeth_clear_halt_card(struct qeth_card
*card
, int halt
)
1628 QETH_CARD_TEXT(card
, 3, "clhacrd");
1631 rc
= qeth_halt_channels(card
);
1634 return qeth_clear_channels(card
);
1637 int qeth_qdio_clear_card(struct qeth_card
*card
, int use_halt
)
1641 QETH_CARD_TEXT(card
, 3, "qdioclr");
1642 switch (atomic_cmpxchg(&card
->qdio
.state
, QETH_QDIO_ESTABLISHED
,
1643 QETH_QDIO_CLEANING
)) {
1644 case QETH_QDIO_ESTABLISHED
:
1645 if (card
->info
.type
== QETH_CARD_TYPE_IQD
)
1646 rc
= qdio_shutdown(CARD_DDEV(card
),
1647 QDIO_FLAG_CLEANUP_USING_HALT
);
1649 rc
= qdio_shutdown(CARD_DDEV(card
),
1650 QDIO_FLAG_CLEANUP_USING_CLEAR
);
1652 QETH_CARD_TEXT_(card
, 3, "1err%d", rc
);
1653 atomic_set(&card
->qdio
.state
, QETH_QDIO_ALLOCATED
);
1655 case QETH_QDIO_CLEANING
:
1660 rc
= qeth_clear_halt_card(card
, use_halt
);
1662 QETH_CARD_TEXT_(card
, 3, "2err%d", rc
);
1663 card
->state
= CARD_STATE_DOWN
;
1666 EXPORT_SYMBOL_GPL(qeth_qdio_clear_card
);
1668 static int qeth_read_conf_data(struct qeth_card
*card
, void **buffer
,
1674 struct qeth_channel
*channel
= &card
->data
;
1675 unsigned long flags
;
1678 * scan for RCD command in extended SenseID data
1680 ciw
= ccw_device_get_ciw(channel
->ccwdev
, CIW_TYPE_RCD
);
1681 if (!ciw
|| ciw
->cmd
== 0)
1683 rcd_buf
= kzalloc(ciw
->count
, GFP_KERNEL
| GFP_DMA
);
1687 channel
->ccw
.cmd_code
= ciw
->cmd
;
1688 channel
->ccw
.cda
= (__u32
) __pa(rcd_buf
);
1689 channel
->ccw
.count
= ciw
->count
;
1690 channel
->ccw
.flags
= CCW_FLAG_SLI
;
1691 channel
->state
= CH_STATE_RCD
;
1692 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
1693 ret
= ccw_device_start_timeout(channel
->ccwdev
, &channel
->ccw
,
1694 QETH_RCD_PARM
, LPM_ANYPATH
, 0,
1696 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
1698 wait_event(card
->wait_q
,
1699 (channel
->state
== CH_STATE_RCD_DONE
||
1700 channel
->state
== CH_STATE_DOWN
));
1701 if (channel
->state
== CH_STATE_DOWN
)
1704 channel
->state
= CH_STATE_DOWN
;
1710 *length
= ciw
->count
;
1716 static void qeth_configure_unitaddr(struct qeth_card
*card
, char *prcd
)
1718 QETH_DBF_TEXT(SETUP
, 2, "cfgunit");
1719 card
->info
.chpid
= prcd
[30];
1720 card
->info
.unit_addr2
= prcd
[31];
1721 card
->info
.cula
= prcd
[63];
1722 card
->info
.guestlan
= ((prcd
[0x10] == _ascebc
['V']) &&
1723 (prcd
[0x11] == _ascebc
['M']));
1726 static void qeth_configure_blkt_default(struct qeth_card
*card
, char *prcd
)
1728 QETH_DBF_TEXT(SETUP
, 2, "cfgblkt");
1730 if (prcd
[74] == 0xF0 && prcd
[75] == 0xF0 &&
1731 prcd
[76] >= 0xF1 && prcd
[76] <= 0xF4) {
1732 card
->info
.blkt
.time_total
= 0;
1733 card
->info
.blkt
.inter_packet
= 0;
1734 card
->info
.blkt
.inter_packet_jumbo
= 0;
1736 card
->info
.blkt
.time_total
= 250;
1737 card
->info
.blkt
.inter_packet
= 5;
1738 card
->info
.blkt
.inter_packet_jumbo
= 15;
1742 static void qeth_init_tokens(struct qeth_card
*card
)
1744 card
->token
.issuer_rm_w
= 0x00010103UL
;
1745 card
->token
.cm_filter_w
= 0x00010108UL
;
1746 card
->token
.cm_connection_w
= 0x0001010aUL
;
1747 card
->token
.ulp_filter_w
= 0x0001010bUL
;
1748 card
->token
.ulp_connection_w
= 0x0001010dUL
;
1751 static void qeth_init_func_level(struct qeth_card
*card
)
1753 switch (card
->info
.type
) {
1754 case QETH_CARD_TYPE_IQD
:
1755 card
->info
.func_level
= QETH_IDX_FUNC_LEVEL_IQD
;
1757 case QETH_CARD_TYPE_OSD
:
1758 case QETH_CARD_TYPE_OSN
:
1759 card
->info
.func_level
= QETH_IDX_FUNC_LEVEL_OSD
;
1766 static int qeth_idx_activate_get_answer(struct qeth_channel
*channel
,
1767 void (*idx_reply_cb
)(struct qeth_channel
*,
1768 struct qeth_cmd_buffer
*))
1770 struct qeth_cmd_buffer
*iob
;
1771 unsigned long flags
;
1773 struct qeth_card
*card
;
1775 QETH_DBF_TEXT(SETUP
, 2, "idxanswr");
1776 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1777 iob
= qeth_get_buffer(channel
);
1780 iob
->callback
= idx_reply_cb
;
1781 memcpy(&channel
->ccw
, READ_CCW
, sizeof(struct ccw1
));
1782 channel
->ccw
.count
= QETH_BUFSIZE
;
1783 channel
->ccw
.cda
= (__u32
) __pa(iob
->data
);
1785 wait_event(card
->wait_q
,
1786 atomic_cmpxchg(&channel
->irq_pending
, 0, 1) == 0);
1787 QETH_DBF_TEXT(SETUP
, 6, "noirqpnd");
1788 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
1789 rc
= ccw_device_start(channel
->ccwdev
,
1790 &channel
->ccw
, (addr_t
) iob
, 0, 0);
1791 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
1794 QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc
);
1795 QETH_DBF_TEXT_(SETUP
, 2, "2err%d", rc
);
1796 atomic_set(&channel
->irq_pending
, 0);
1797 wake_up(&card
->wait_q
);
1800 rc
= wait_event_interruptible_timeout(card
->wait_q
,
1801 channel
->state
== CH_STATE_UP
, QETH_TIMEOUT
);
1802 if (rc
== -ERESTARTSYS
)
1804 if (channel
->state
!= CH_STATE_UP
) {
1806 QETH_DBF_TEXT_(SETUP
, 2, "3err%d", rc
);
1807 qeth_clear_cmd_buffers(channel
);
1813 static int qeth_idx_activate_channel(struct qeth_channel
*channel
,
1814 void (*idx_reply_cb
)(struct qeth_channel
*,
1815 struct qeth_cmd_buffer
*))
1817 struct qeth_card
*card
;
1818 struct qeth_cmd_buffer
*iob
;
1819 unsigned long flags
;
1823 struct ccw_dev_id temp_devid
;
1825 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1827 QETH_DBF_TEXT(SETUP
, 2, "idxactch");
1829 iob
= qeth_get_buffer(channel
);
1832 iob
->callback
= idx_reply_cb
;
1833 memcpy(&channel
->ccw
, WRITE_CCW
, sizeof(struct ccw1
));
1834 channel
->ccw
.count
= IDX_ACTIVATE_SIZE
;
1835 channel
->ccw
.cda
= (__u32
) __pa(iob
->data
);
1836 if (channel
== &card
->write
) {
1837 memcpy(iob
->data
, IDX_ACTIVATE_WRITE
, IDX_ACTIVATE_SIZE
);
1838 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob
->data
),
1839 &card
->seqno
.trans_hdr
, QETH_SEQ_NO_LENGTH
);
1840 card
->seqno
.trans_hdr
++;
1842 memcpy(iob
->data
, IDX_ACTIVATE_READ
, IDX_ACTIVATE_SIZE
);
1843 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob
->data
),
1844 &card
->seqno
.trans_hdr
, QETH_SEQ_NO_LENGTH
);
1846 tmp
= ((__u8
)card
->info
.portno
) | 0x80;
1847 memcpy(QETH_IDX_ACT_PNO(iob
->data
), &tmp
, 1);
1848 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob
->data
),
1849 &card
->token
.issuer_rm_w
, QETH_MPC_TOKEN_LENGTH
);
1850 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob
->data
),
1851 &card
->info
.func_level
, sizeof(__u16
));
1852 ccw_device_get_id(CARD_DDEV(card
), &temp_devid
);
1853 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob
->data
), &temp_devid
.devno
, 2);
1854 temp
= (card
->info
.cula
<< 8) + card
->info
.unit_addr2
;
1855 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob
->data
), &temp
, 2);
1857 wait_event(card
->wait_q
,
1858 atomic_cmpxchg(&channel
->irq_pending
, 0, 1) == 0);
1859 QETH_DBF_TEXT(SETUP
, 6, "noirqpnd");
1860 spin_lock_irqsave(get_ccwdev_lock(channel
->ccwdev
), flags
);
1861 rc
= ccw_device_start(channel
->ccwdev
,
1862 &channel
->ccw
, (addr_t
) iob
, 0, 0);
1863 spin_unlock_irqrestore(get_ccwdev_lock(channel
->ccwdev
), flags
);
1866 QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n",
1868 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
1869 atomic_set(&channel
->irq_pending
, 0);
1870 wake_up(&card
->wait_q
);
1873 rc
= wait_event_interruptible_timeout(card
->wait_q
,
1874 channel
->state
== CH_STATE_ACTIVATING
, QETH_TIMEOUT
);
1875 if (rc
== -ERESTARTSYS
)
1877 if (channel
->state
!= CH_STATE_ACTIVATING
) {
1878 dev_warn(&channel
->ccwdev
->dev
, "The qeth device driver"
1879 " failed to recover an error on the device\n");
1880 QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n",
1881 dev_name(&channel
->ccwdev
->dev
));
1882 QETH_DBF_TEXT_(SETUP
, 2, "2err%d", -ETIME
);
1883 qeth_clear_cmd_buffers(channel
);
1886 return qeth_idx_activate_get_answer(channel
, idx_reply_cb
);
1889 static int qeth_peer_func_level(int level
)
1891 if ((level
& 0xff) == 8)
1892 return (level
& 0xff) + 0x400;
1893 if (((level
>> 8) & 3) == 1)
1894 return (level
& 0xff) + 0x200;
1898 static void qeth_idx_write_cb(struct qeth_channel
*channel
,
1899 struct qeth_cmd_buffer
*iob
)
1901 struct qeth_card
*card
;
1904 QETH_DBF_TEXT(SETUP
, 2, "idxwrcb");
1906 if (channel
->state
== CH_STATE_DOWN
) {
1907 channel
->state
= CH_STATE_ACTIVATING
;
1910 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1912 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob
->data
))) {
1913 if (QETH_IDX_ACT_CAUSE_CODE(iob
->data
) == QETH_IDX_ACT_ERR_EXCL
)
1914 dev_err(&card
->write
.ccwdev
->dev
,
1915 "The adapter is used exclusively by another "
1918 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel:"
1919 " negative reply\n",
1920 dev_name(&card
->write
.ccwdev
->dev
));
1923 memcpy(&temp
, QETH_IDX_ACT_FUNC_LEVEL(iob
->data
), 2);
1924 if ((temp
& ~0x0100) != qeth_peer_func_level(card
->info
.func_level
)) {
1925 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel: "
1926 "function level mismatch (sent: 0x%x, received: "
1927 "0x%x)\n", dev_name(&card
->write
.ccwdev
->dev
),
1928 card
->info
.func_level
, temp
);
1931 channel
->state
= CH_STATE_UP
;
1933 qeth_release_buffer(channel
, iob
);
1936 static void qeth_idx_read_cb(struct qeth_channel
*channel
,
1937 struct qeth_cmd_buffer
*iob
)
1939 struct qeth_card
*card
;
1942 QETH_DBF_TEXT(SETUP
, 2, "idxrdcb");
1943 if (channel
->state
== CH_STATE_DOWN
) {
1944 channel
->state
= CH_STATE_ACTIVATING
;
1948 card
= CARD_FROM_CDEV(channel
->ccwdev
);
1949 if (qeth_check_idx_response(card
, iob
->data
))
1952 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob
->data
))) {
1953 switch (QETH_IDX_ACT_CAUSE_CODE(iob
->data
)) {
1954 case QETH_IDX_ACT_ERR_EXCL
:
1955 dev_err(&card
->write
.ccwdev
->dev
,
1956 "The adapter is used exclusively by another "
1959 case QETH_IDX_ACT_ERR_AUTH
:
1960 case QETH_IDX_ACT_ERR_AUTH_USER
:
1961 dev_err(&card
->read
.ccwdev
->dev
,
1962 "Setting the device online failed because of "
1963 "insufficient authorization\n");
1966 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel:"
1967 " negative reply\n",
1968 dev_name(&card
->read
.ccwdev
->dev
));
1970 QETH_CARD_TEXT_(card
, 2, "idxread%c",
1971 QETH_IDX_ACT_CAUSE_CODE(iob
->data
));
1975 memcpy(&temp
, QETH_IDX_ACT_FUNC_LEVEL(iob
->data
), 2);
1976 if (temp
!= qeth_peer_func_level(card
->info
.func_level
)) {
1977 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel: function "
1978 "level mismatch (sent: 0x%x, received: 0x%x)\n",
1979 dev_name(&card
->read
.ccwdev
->dev
),
1980 card
->info
.func_level
, temp
);
1983 memcpy(&card
->token
.issuer_rm_r
,
1984 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob
->data
),
1985 QETH_MPC_TOKEN_LENGTH
);
1986 memcpy(&card
->info
.mcl_level
[0],
1987 QETH_IDX_REPLY_LEVEL(iob
->data
), QETH_MCL_LENGTH
);
1988 channel
->state
= CH_STATE_UP
;
1990 qeth_release_buffer(channel
, iob
);
1993 void qeth_prepare_control_data(struct qeth_card
*card
, int len
,
1994 struct qeth_cmd_buffer
*iob
)
1996 qeth_setup_ccw(&card
->write
, iob
->data
, len
);
1997 iob
->callback
= qeth_release_buffer
;
1999 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob
->data
),
2000 &card
->seqno
.trans_hdr
, QETH_SEQ_NO_LENGTH
);
2001 card
->seqno
.trans_hdr
++;
2002 memcpy(QETH_PDU_HEADER_SEQ_NO(iob
->data
),
2003 &card
->seqno
.pdu_hdr
, QETH_SEQ_NO_LENGTH
);
2004 card
->seqno
.pdu_hdr
++;
2005 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob
->data
),
2006 &card
->seqno
.pdu_hdr_ack
, QETH_SEQ_NO_LENGTH
);
2007 QETH_DBF_HEX(CTRL
, 2, iob
->data
, QETH_DBF_CTRL_LEN
);
2009 EXPORT_SYMBOL_GPL(qeth_prepare_control_data
);
2012 * qeth_send_control_data() - send control command to the card
2013 * @card: qeth_card structure pointer
2014 * @len: size of the command buffer
2015 * @iob: qeth_cmd_buffer pointer
2016 * @reply_cb: callback function pointer
2017 * @cb_card: pointer to the qeth_card structure
2018 * @cb_reply: pointer to the qeth_reply structure
2019 * @cb_cmd: pointer to the original iob for non-IPA
2020 * commands, or to the qeth_ipa_cmd structure
2021 * for the IPA commands.
2022 * @reply_param: private pointer passed to the callback
2024 * Returns the value of the `return_code' field of the response
2025 * block returned from the hardware, or other error indication.
2026 * Value of zero indicates successful execution of the command.
2028 * Callback function gets called one or more times, with cb_cmd
2029 * pointing to the response returned by the hardware. Callback
2030 * function must return non-zero if more reply blocks are expected,
2031 * and zero if the last or only reply block is received. Callback
2032 * function can get the value of the reply_param pointer from the
2033 * field 'param' of the structure qeth_reply.
2036 int qeth_send_control_data(struct qeth_card
*card
, int len
,
2037 struct qeth_cmd_buffer
*iob
,
2038 int (*reply_cb
)(struct qeth_card
*cb_card
,
2039 struct qeth_reply
*cb_reply
,
2040 unsigned long cb_cmd
),
2044 unsigned long flags
;
2045 struct qeth_reply
*reply
= NULL
;
2046 unsigned long timeout
, event_timeout
;
2047 struct qeth_ipa_cmd
*cmd
;
2049 QETH_CARD_TEXT(card
, 2, "sendctl");
2051 if (card
->read_or_write_problem
) {
2052 qeth_release_buffer(iob
->channel
, iob
);
2055 reply
= qeth_alloc_reply(card
);
2059 reply
->callback
= reply_cb
;
2060 reply
->param
= reply_param
;
2061 if (card
->state
== CARD_STATE_DOWN
)
2062 reply
->seqno
= QETH_IDX_COMMAND_SEQNO
;
2064 reply
->seqno
= card
->seqno
.ipa
++;
2065 init_waitqueue_head(&reply
->wait_q
);
2066 spin_lock_irqsave(&card
->lock
, flags
);
2067 list_add_tail(&reply
->list
, &card
->cmd_waiter_list
);
2068 spin_unlock_irqrestore(&card
->lock
, flags
);
2069 QETH_DBF_HEX(CTRL
, 2, iob
->data
, QETH_DBF_CTRL_LEN
);
2071 while (atomic_cmpxchg(&card
->write
.irq_pending
, 0, 1)) ;
2072 qeth_prepare_control_data(card
, len
, iob
);
2074 if (IS_IPA(iob
->data
))
2075 event_timeout
= QETH_IPA_TIMEOUT
;
2077 event_timeout
= QETH_TIMEOUT
;
2078 timeout
= jiffies
+ event_timeout
;
2080 QETH_CARD_TEXT(card
, 6, "noirqpnd");
2081 spin_lock_irqsave(get_ccwdev_lock(card
->write
.ccwdev
), flags
);
2082 rc
= ccw_device_start(card
->write
.ccwdev
, &card
->write
.ccw
,
2083 (addr_t
) iob
, 0, 0);
2084 spin_unlock_irqrestore(get_ccwdev_lock(card
->write
.ccwdev
), flags
);
2086 QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: "
2087 "ccw_device_start rc = %i\n",
2088 dev_name(&card
->write
.ccwdev
->dev
), rc
);
2089 QETH_CARD_TEXT_(card
, 2, " err%d", rc
);
2090 spin_lock_irqsave(&card
->lock
, flags
);
2091 list_del_init(&reply
->list
);
2092 qeth_put_reply(reply
);
2093 spin_unlock_irqrestore(&card
->lock
, flags
);
2094 qeth_release_buffer(iob
->channel
, iob
);
2095 atomic_set(&card
->write
.irq_pending
, 0);
2096 wake_up(&card
->wait_q
);
2100 /* we have only one long running ipassist, since we can ensure
2101 process context of this command we can sleep */
2102 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
2103 if ((cmd
->hdr
.command
== IPA_CMD_SETIP
) &&
2104 (cmd
->hdr
.prot_version
== QETH_PROT_IPV4
)) {
2105 if (!wait_event_timeout(reply
->wait_q
,
2106 atomic_read(&reply
->received
), event_timeout
))
2109 while (!atomic_read(&reply
->received
)) {
2110 if (time_after(jiffies
, timeout
))
2116 if (reply
->rc
== -EIO
)
2119 qeth_put_reply(reply
);
2124 spin_lock_irqsave(&reply
->card
->lock
, flags
);
2125 list_del_init(&reply
->list
);
2126 spin_unlock_irqrestore(&reply
->card
->lock
, flags
);
2127 atomic_inc(&reply
->received
);
2129 atomic_set(&card
->write
.irq_pending
, 0);
2130 qeth_release_buffer(iob
->channel
, iob
);
2131 card
->write
.buf_no
= (card
->write
.buf_no
+ 1) % QETH_CMD_BUFFER_NO
;
2133 qeth_put_reply(reply
);
2136 EXPORT_SYMBOL_GPL(qeth_send_control_data
);
2138 static int qeth_cm_enable_cb(struct qeth_card
*card
, struct qeth_reply
*reply
,
2141 struct qeth_cmd_buffer
*iob
;
2143 QETH_DBF_TEXT(SETUP
, 2, "cmenblcb");
2145 iob
= (struct qeth_cmd_buffer
*) data
;
2146 memcpy(&card
->token
.cm_filter_r
,
2147 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob
->data
),
2148 QETH_MPC_TOKEN_LENGTH
);
2149 QETH_DBF_TEXT_(SETUP
, 2, " rc%d", iob
->rc
);
2153 static int qeth_cm_enable(struct qeth_card
*card
)
2156 struct qeth_cmd_buffer
*iob
;
2158 QETH_DBF_TEXT(SETUP
, 2, "cmenable");
2160 iob
= qeth_wait_for_buffer(&card
->write
);
2161 memcpy(iob
->data
, CM_ENABLE
, CM_ENABLE_SIZE
);
2162 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob
->data
),
2163 &card
->token
.issuer_rm_r
, QETH_MPC_TOKEN_LENGTH
);
2164 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob
->data
),
2165 &card
->token
.cm_filter_w
, QETH_MPC_TOKEN_LENGTH
);
2167 rc
= qeth_send_control_data(card
, CM_ENABLE_SIZE
, iob
,
2168 qeth_cm_enable_cb
, NULL
);
2172 static int qeth_cm_setup_cb(struct qeth_card
*card
, struct qeth_reply
*reply
,
2176 struct qeth_cmd_buffer
*iob
;
2178 QETH_DBF_TEXT(SETUP
, 2, "cmsetpcb");
2180 iob
= (struct qeth_cmd_buffer
*) data
;
2181 memcpy(&card
->token
.cm_connection_r
,
2182 QETH_CM_SETUP_RESP_DEST_ADDR(iob
->data
),
2183 QETH_MPC_TOKEN_LENGTH
);
2184 QETH_DBF_TEXT_(SETUP
, 2, " rc%d", iob
->rc
);
2188 static int qeth_cm_setup(struct qeth_card
*card
)
2191 struct qeth_cmd_buffer
*iob
;
2193 QETH_DBF_TEXT(SETUP
, 2, "cmsetup");
2195 iob
= qeth_wait_for_buffer(&card
->write
);
2196 memcpy(iob
->data
, CM_SETUP
, CM_SETUP_SIZE
);
2197 memcpy(QETH_CM_SETUP_DEST_ADDR(iob
->data
),
2198 &card
->token
.issuer_rm_r
, QETH_MPC_TOKEN_LENGTH
);
2199 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob
->data
),
2200 &card
->token
.cm_connection_w
, QETH_MPC_TOKEN_LENGTH
);
2201 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob
->data
),
2202 &card
->token
.cm_filter_r
, QETH_MPC_TOKEN_LENGTH
);
2203 rc
= qeth_send_control_data(card
, CM_SETUP_SIZE
, iob
,
2204 qeth_cm_setup_cb
, NULL
);
2209 static inline int qeth_get_initial_mtu_for_card(struct qeth_card
*card
)
2211 switch (card
->info
.type
) {
2212 case QETH_CARD_TYPE_UNKNOWN
:
2214 case QETH_CARD_TYPE_IQD
:
2215 return card
->info
.max_mtu
;
2216 case QETH_CARD_TYPE_OSD
:
2217 switch (card
->info
.link_type
) {
2218 case QETH_LINK_TYPE_HSTR
:
2219 case QETH_LINK_TYPE_LANE_TR
:
2222 return card
->options
.layer2
? 1500 : 1492;
2224 case QETH_CARD_TYPE_OSM
:
2225 case QETH_CARD_TYPE_OSX
:
2226 return card
->options
.layer2
? 1500 : 1492;
2232 static inline int qeth_get_mtu_outof_framesize(int framesize
)
2234 switch (framesize
) {
2248 static inline int qeth_mtu_is_valid(struct qeth_card
*card
, int mtu
)
2250 switch (card
->info
.type
) {
2251 case QETH_CARD_TYPE_OSD
:
2252 case QETH_CARD_TYPE_OSM
:
2253 case QETH_CARD_TYPE_OSX
:
2254 case QETH_CARD_TYPE_IQD
:
2255 return ((mtu
>= 576) &&
2256 (mtu
<= card
->info
.max_mtu
));
2257 case QETH_CARD_TYPE_OSN
:
2258 case QETH_CARD_TYPE_UNKNOWN
:
2264 static int qeth_ulp_enable_cb(struct qeth_card
*card
, struct qeth_reply
*reply
,
2268 __u16 mtu
, framesize
;
2271 struct qeth_cmd_buffer
*iob
;
2273 QETH_DBF_TEXT(SETUP
, 2, "ulpenacb");
2275 iob
= (struct qeth_cmd_buffer
*) data
;
2276 memcpy(&card
->token
.ulp_filter_r
,
2277 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob
->data
),
2278 QETH_MPC_TOKEN_LENGTH
);
2279 if (card
->info
.type
== QETH_CARD_TYPE_IQD
) {
2280 memcpy(&framesize
, QETH_ULP_ENABLE_RESP_MAX_MTU(iob
->data
), 2);
2281 mtu
= qeth_get_mtu_outof_framesize(framesize
);
2284 QETH_DBF_TEXT_(SETUP
, 2, " rc%d", iob
->rc
);
2287 if (card
->info
.initial_mtu
&& (card
->info
.initial_mtu
!= mtu
)) {
2288 /* frame size has changed */
2290 ((card
->dev
->mtu
== card
->info
.initial_mtu
) ||
2291 (card
->dev
->mtu
> mtu
)))
2292 card
->dev
->mtu
= mtu
;
2293 qeth_free_qdio_buffers(card
);
2295 card
->info
.initial_mtu
= mtu
;
2296 card
->info
.max_mtu
= mtu
;
2297 card
->qdio
.in_buf_size
= mtu
+ 2 * PAGE_SIZE
;
2299 card
->info
.max_mtu
= *(__u16
*)QETH_ULP_ENABLE_RESP_MAX_MTU(
2301 card
->info
.initial_mtu
= min(card
->info
.max_mtu
,
2302 qeth_get_initial_mtu_for_card(card
));
2303 card
->qdio
.in_buf_size
= QETH_IN_BUF_SIZE_DEFAULT
;
2306 memcpy(&len
, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob
->data
), 2);
2307 if (len
>= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE
) {
2309 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob
->data
), 1);
2310 card
->info
.link_type
= link_type
;
2312 card
->info
.link_type
= 0;
2313 QETH_DBF_TEXT_(SETUP
, 2, "link%d", card
->info
.link_type
);
2314 QETH_DBF_TEXT_(SETUP
, 2, " rc%d", iob
->rc
);
2318 static int qeth_ulp_enable(struct qeth_card
*card
)
2322 struct qeth_cmd_buffer
*iob
;
2324 /*FIXME: trace view callbacks*/
2325 QETH_DBF_TEXT(SETUP
, 2, "ulpenabl");
2327 iob
= qeth_wait_for_buffer(&card
->write
);
2328 memcpy(iob
->data
, ULP_ENABLE
, ULP_ENABLE_SIZE
);
2330 *(QETH_ULP_ENABLE_LINKNUM(iob
->data
)) =
2331 (__u8
) card
->info
.portno
;
2332 if (card
->options
.layer2
)
2333 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
2334 prot_type
= QETH_PROT_OSN2
;
2336 prot_type
= QETH_PROT_LAYER2
;
2338 prot_type
= QETH_PROT_TCPIP
;
2340 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob
->data
), &prot_type
, 1);
2341 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob
->data
),
2342 &card
->token
.cm_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2343 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob
->data
),
2344 &card
->token
.ulp_filter_w
, QETH_MPC_TOKEN_LENGTH
);
2345 rc
= qeth_send_control_data(card
, ULP_ENABLE_SIZE
, iob
,
2346 qeth_ulp_enable_cb
, NULL
);
2351 static int qeth_ulp_setup_cb(struct qeth_card
*card
, struct qeth_reply
*reply
,
2354 struct qeth_cmd_buffer
*iob
;
2356 QETH_DBF_TEXT(SETUP
, 2, "ulpstpcb");
2358 iob
= (struct qeth_cmd_buffer
*) data
;
2359 memcpy(&card
->token
.ulp_connection_r
,
2360 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob
->data
),
2361 QETH_MPC_TOKEN_LENGTH
);
2362 if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob
->data
),
2364 QETH_DBF_TEXT(SETUP
, 2, "olmlimit");
2365 dev_err(&card
->gdev
->dev
, "A connection could not be "
2366 "established because of an OLM limit\n");
2369 QETH_DBF_TEXT_(SETUP
, 2, " rc%d", iob
->rc
);
2373 static int qeth_ulp_setup(struct qeth_card
*card
)
2377 struct qeth_cmd_buffer
*iob
;
2378 struct ccw_dev_id dev_id
;
2380 QETH_DBF_TEXT(SETUP
, 2, "ulpsetup");
2382 iob
= qeth_wait_for_buffer(&card
->write
);
2383 memcpy(iob
->data
, ULP_SETUP
, ULP_SETUP_SIZE
);
2385 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob
->data
),
2386 &card
->token
.cm_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2387 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob
->data
),
2388 &card
->token
.ulp_connection_w
, QETH_MPC_TOKEN_LENGTH
);
2389 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob
->data
),
2390 &card
->token
.ulp_filter_r
, QETH_MPC_TOKEN_LENGTH
);
2392 ccw_device_get_id(CARD_DDEV(card
), &dev_id
);
2393 memcpy(QETH_ULP_SETUP_CUA(iob
->data
), &dev_id
.devno
, 2);
2394 temp
= (card
->info
.cula
<< 8) + card
->info
.unit_addr2
;
2395 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob
->data
), &temp
, 2);
2396 rc
= qeth_send_control_data(card
, ULP_SETUP_SIZE
, iob
,
2397 qeth_ulp_setup_cb
, NULL
);
2401 static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q
*q
, int bidx
)
2404 struct qeth_qdio_out_buffer
*newbuf
;
2407 newbuf
= kmem_cache_zalloc(qeth_qdio_outbuf_cache
, GFP_ATOMIC
);
2412 newbuf
->buffer
= q
->qdio_bufs
[bidx
];
2413 skb_queue_head_init(&newbuf
->skb_list
);
2414 lockdep_set_class(&newbuf
->skb_list
.lock
, &qdio_out_skb_queue_key
);
2417 newbuf
->next_pending
= q
->bufs
[bidx
];
2418 atomic_set(&newbuf
->state
, QETH_QDIO_BUF_EMPTY
);
2419 q
->bufs
[bidx
] = newbuf
;
2421 q
->bufstates
[bidx
].user
= newbuf
;
2422 QETH_CARD_TEXT_(q
->card
, 2, "nbs%d", bidx
);
2423 QETH_CARD_TEXT_(q
->card
, 2, "%lx", (long) newbuf
);
2424 QETH_CARD_TEXT_(q
->card
, 2, "%lx",
2425 (long) newbuf
->next_pending
);
2431 static void qeth_free_qdio_out_buf(struct qeth_qdio_out_q
*q
)
2436 qdio_free_buffers(q
->qdio_bufs
, QDIO_MAX_BUFFERS_PER_Q
);
2440 static struct qeth_qdio_out_q
*qeth_alloc_qdio_out_buf(void)
2442 struct qeth_qdio_out_q
*q
= kzalloc(sizeof(*q
), GFP_KERNEL
);
2447 if (qdio_alloc_buffers(q
->qdio_bufs
, QDIO_MAX_BUFFERS_PER_Q
)) {
2454 static int qeth_alloc_qdio_buffers(struct qeth_card
*card
)
2458 QETH_DBF_TEXT(SETUP
, 2, "allcqdbf");
2460 if (atomic_cmpxchg(&card
->qdio
.state
, QETH_QDIO_UNINITIALIZED
,
2461 QETH_QDIO_ALLOCATED
) != QETH_QDIO_UNINITIALIZED
)
2464 QETH_DBF_TEXT(SETUP
, 2, "inq");
2465 card
->qdio
.in_q
= qeth_alloc_qdio_queue();
2466 if (!card
->qdio
.in_q
)
2469 /* inbound buffer pool */
2470 if (qeth_alloc_buffer_pool(card
))
2475 kzalloc(card
->qdio
.no_out_queues
*
2476 sizeof(struct qeth_qdio_out_q
*), GFP_KERNEL
);
2477 if (!card
->qdio
.out_qs
)
2479 for (i
= 0; i
< card
->qdio
.no_out_queues
; ++i
) {
2480 card
->qdio
.out_qs
[i
] = qeth_alloc_qdio_out_buf();
2481 if (!card
->qdio
.out_qs
[i
])
2483 QETH_DBF_TEXT_(SETUP
, 2, "outq %i", i
);
2484 QETH_DBF_HEX(SETUP
, 2, &card
->qdio
.out_qs
[i
], sizeof(void *));
2485 card
->qdio
.out_qs
[i
]->queue_no
= i
;
2486 /* give outbound qeth_qdio_buffers their qdio_buffers */
2487 for (j
= 0; j
< QDIO_MAX_BUFFERS_PER_Q
; ++j
) {
2488 WARN_ON(card
->qdio
.out_qs
[i
]->bufs
[j
] != NULL
);
2489 if (qeth_init_qdio_out_buf(card
->qdio
.out_qs
[i
], j
))
2490 goto out_freeoutqbufs
;
2495 if (qeth_alloc_cq(card
))
2503 kmem_cache_free(qeth_qdio_outbuf_cache
,
2504 card
->qdio
.out_qs
[i
]->bufs
[j
]);
2505 card
->qdio
.out_qs
[i
]->bufs
[j
] = NULL
;
2509 qeth_free_qdio_out_buf(card
->qdio
.out_qs
[--i
]);
2510 qeth_clear_outq_buffers(card
->qdio
.out_qs
[i
], 1);
2512 kfree(card
->qdio
.out_qs
);
2513 card
->qdio
.out_qs
= NULL
;
2515 qeth_free_buffer_pool(card
);
2517 qeth_free_qdio_queue(card
->qdio
.in_q
);
2518 card
->qdio
.in_q
= NULL
;
2520 atomic_set(&card
->qdio
.state
, QETH_QDIO_UNINITIALIZED
);
2524 static void qeth_free_qdio_buffers(struct qeth_card
*card
)
2528 if (atomic_xchg(&card
->qdio
.state
, QETH_QDIO_UNINITIALIZED
) ==
2529 QETH_QDIO_UNINITIALIZED
)
2533 cancel_delayed_work_sync(&card
->buffer_reclaim_work
);
2534 for (j
= 0; j
< QDIO_MAX_BUFFERS_PER_Q
; ++j
) {
2535 if (card
->qdio
.in_q
->bufs
[j
].rx_skb
)
2536 dev_kfree_skb_any(card
->qdio
.in_q
->bufs
[j
].rx_skb
);
2538 qeth_free_qdio_queue(card
->qdio
.in_q
);
2539 card
->qdio
.in_q
= NULL
;
2540 /* inbound buffer pool */
2541 qeth_free_buffer_pool(card
);
2542 /* free outbound qdio_qs */
2543 if (card
->qdio
.out_qs
) {
2544 for (i
= 0; i
< card
->qdio
.no_out_queues
; ++i
) {
2545 qeth_clear_outq_buffers(card
->qdio
.out_qs
[i
], 1);
2546 qeth_free_qdio_out_buf(card
->qdio
.out_qs
[i
]);
2548 kfree(card
->qdio
.out_qs
);
2549 card
->qdio
.out_qs
= NULL
;
2553 static void qeth_create_qib_param_field(struct qeth_card
*card
,
2557 param_field
[0] = _ascebc
['P'];
2558 param_field
[1] = _ascebc
['C'];
2559 param_field
[2] = _ascebc
['I'];
2560 param_field
[3] = _ascebc
['T'];
2561 *((unsigned int *) (¶m_field
[4])) = QETH_PCI_THRESHOLD_A(card
);
2562 *((unsigned int *) (¶m_field
[8])) = QETH_PCI_THRESHOLD_B(card
);
2563 *((unsigned int *) (¶m_field
[12])) = QETH_PCI_TIMER_VALUE(card
);
2566 static void qeth_create_qib_param_field_blkt(struct qeth_card
*card
,
2569 param_field
[16] = _ascebc
['B'];
2570 param_field
[17] = _ascebc
['L'];
2571 param_field
[18] = _ascebc
['K'];
2572 param_field
[19] = _ascebc
['T'];
2573 *((unsigned int *) (¶m_field
[20])) = card
->info
.blkt
.time_total
;
2574 *((unsigned int *) (¶m_field
[24])) = card
->info
.blkt
.inter_packet
;
2575 *((unsigned int *) (¶m_field
[28])) =
2576 card
->info
.blkt
.inter_packet_jumbo
;
2579 static int qeth_qdio_activate(struct qeth_card
*card
)
2581 QETH_DBF_TEXT(SETUP
, 3, "qdioact");
2582 return qdio_activate(CARD_DDEV(card
));
2585 static int qeth_dm_act(struct qeth_card
*card
)
2588 struct qeth_cmd_buffer
*iob
;
2590 QETH_DBF_TEXT(SETUP
, 2, "dmact");
2592 iob
= qeth_wait_for_buffer(&card
->write
);
2593 memcpy(iob
->data
, DM_ACT
, DM_ACT_SIZE
);
2595 memcpy(QETH_DM_ACT_DEST_ADDR(iob
->data
),
2596 &card
->token
.cm_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2597 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob
->data
),
2598 &card
->token
.ulp_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2599 rc
= qeth_send_control_data(card
, DM_ACT_SIZE
, iob
, NULL
, NULL
);
2603 static int qeth_mpc_initialize(struct qeth_card
*card
)
2607 QETH_DBF_TEXT(SETUP
, 2, "mpcinit");
2609 rc
= qeth_issue_next_read(card
);
2611 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
2614 rc
= qeth_cm_enable(card
);
2616 QETH_DBF_TEXT_(SETUP
, 2, "2err%d", rc
);
2619 rc
= qeth_cm_setup(card
);
2621 QETH_DBF_TEXT_(SETUP
, 2, "3err%d", rc
);
2624 rc
= qeth_ulp_enable(card
);
2626 QETH_DBF_TEXT_(SETUP
, 2, "4err%d", rc
);
2629 rc
= qeth_ulp_setup(card
);
2631 QETH_DBF_TEXT_(SETUP
, 2, "5err%d", rc
);
2634 rc
= qeth_alloc_qdio_buffers(card
);
2636 QETH_DBF_TEXT_(SETUP
, 2, "5err%d", rc
);
2639 rc
= qeth_qdio_establish(card
);
2641 QETH_DBF_TEXT_(SETUP
, 2, "6err%d", rc
);
2642 qeth_free_qdio_buffers(card
);
2645 rc
= qeth_qdio_activate(card
);
2647 QETH_DBF_TEXT_(SETUP
, 2, "7err%d", rc
);
2650 rc
= qeth_dm_act(card
);
2652 QETH_DBF_TEXT_(SETUP
, 2, "8err%d", rc
);
2658 qeth_qdio_clear_card(card
, card
->info
.type
!= QETH_CARD_TYPE_IQD
);
2659 qdio_free(CARD_DDEV(card
));
2663 void qeth_print_status_message(struct qeth_card
*card
)
2665 switch (card
->info
.type
) {
2666 case QETH_CARD_TYPE_OSD
:
2667 case QETH_CARD_TYPE_OSM
:
2668 case QETH_CARD_TYPE_OSX
:
2669 /* VM will use a non-zero first character
2670 * to indicate a HiperSockets like reporting
2671 * of the level OSA sets the first character to zero
2673 if (!card
->info
.mcl_level
[0]) {
2674 sprintf(card
->info
.mcl_level
, "%02x%02x",
2675 card
->info
.mcl_level
[2],
2676 card
->info
.mcl_level
[3]);
2680 case QETH_CARD_TYPE_IQD
:
2681 if ((card
->info
.guestlan
) ||
2682 (card
->info
.mcl_level
[0] & 0x80)) {
2683 card
->info
.mcl_level
[0] = (char) _ebcasc
[(__u8
)
2684 card
->info
.mcl_level
[0]];
2685 card
->info
.mcl_level
[1] = (char) _ebcasc
[(__u8
)
2686 card
->info
.mcl_level
[1]];
2687 card
->info
.mcl_level
[2] = (char) _ebcasc
[(__u8
)
2688 card
->info
.mcl_level
[2]];
2689 card
->info
.mcl_level
[3] = (char) _ebcasc
[(__u8
)
2690 card
->info
.mcl_level
[3]];
2691 card
->info
.mcl_level
[QETH_MCL_LENGTH
] = 0;
2695 memset(&card
->info
.mcl_level
[0], 0, QETH_MCL_LENGTH
+ 1);
2697 dev_info(&card
->gdev
->dev
,
2698 "Device is a%s card%s%s%s\nwith link type %s.\n",
2699 qeth_get_cardname(card
),
2700 (card
->info
.mcl_level
[0]) ? " (level: " : "",
2701 (card
->info
.mcl_level
[0]) ? card
->info
.mcl_level
: "",
2702 (card
->info
.mcl_level
[0]) ? ")" : "",
2703 qeth_get_cardname_short(card
));
2705 EXPORT_SYMBOL_GPL(qeth_print_status_message
);
2707 static void qeth_initialize_working_pool_list(struct qeth_card
*card
)
2709 struct qeth_buffer_pool_entry
*entry
;
2711 QETH_CARD_TEXT(card
, 5, "inwrklst");
2713 list_for_each_entry(entry
,
2714 &card
->qdio
.init_pool
.entry_list
, init_list
) {
2715 qeth_put_buffer_pool_entry(card
, entry
);
2719 static inline struct qeth_buffer_pool_entry
*qeth_find_free_buffer_pool_entry(
2720 struct qeth_card
*card
)
2722 struct list_head
*plh
;
2723 struct qeth_buffer_pool_entry
*entry
;
2727 if (list_empty(&card
->qdio
.in_buf_pool
.entry_list
))
2730 list_for_each(plh
, &card
->qdio
.in_buf_pool
.entry_list
) {
2731 entry
= list_entry(plh
, struct qeth_buffer_pool_entry
, list
);
2733 for (i
= 0; i
< QETH_MAX_BUFFER_ELEMENTS(card
); ++i
) {
2734 if (page_count(virt_to_page(entry
->elements
[i
])) > 1) {
2740 list_del_init(&entry
->list
);
2745 /* no free buffer in pool so take first one and swap pages */
2746 entry
= list_entry(card
->qdio
.in_buf_pool
.entry_list
.next
,
2747 struct qeth_buffer_pool_entry
, list
);
2748 for (i
= 0; i
< QETH_MAX_BUFFER_ELEMENTS(card
); ++i
) {
2749 if (page_count(virt_to_page(entry
->elements
[i
])) > 1) {
2750 page
= alloc_page(GFP_ATOMIC
);
2754 free_page((unsigned long)entry
->elements
[i
]);
2755 entry
->elements
[i
] = page_address(page
);
2756 if (card
->options
.performance_stats
)
2757 card
->perf_stats
.sg_alloc_page_rx
++;
2761 list_del_init(&entry
->list
);
2765 static int qeth_init_input_buffer(struct qeth_card
*card
,
2766 struct qeth_qdio_buffer
*buf
)
2768 struct qeth_buffer_pool_entry
*pool_entry
;
2771 if ((card
->options
.cq
== QETH_CQ_ENABLED
) && (!buf
->rx_skb
)) {
2772 buf
->rx_skb
= dev_alloc_skb(QETH_RX_PULL_LEN
+ ETH_HLEN
);
2777 pool_entry
= qeth_find_free_buffer_pool_entry(card
);
2782 * since the buffer is accessed only from the input_tasklet
2783 * there shouldn't be a need to synchronize; also, since we use
2784 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2788 buf
->pool_entry
= pool_entry
;
2789 for (i
= 0; i
< QETH_MAX_BUFFER_ELEMENTS(card
); ++i
) {
2790 buf
->buffer
->element
[i
].length
= PAGE_SIZE
;
2791 buf
->buffer
->element
[i
].addr
= pool_entry
->elements
[i
];
2792 if (i
== QETH_MAX_BUFFER_ELEMENTS(card
) - 1)
2793 buf
->buffer
->element
[i
].eflags
= SBAL_EFLAGS_LAST_ENTRY
;
2795 buf
->buffer
->element
[i
].eflags
= 0;
2796 buf
->buffer
->element
[i
].sflags
= 0;
2801 int qeth_init_qdio_queues(struct qeth_card
*card
)
2806 QETH_DBF_TEXT(SETUP
, 2, "initqdqs");
2809 qdio_reset_buffers(card
->qdio
.in_q
->qdio_bufs
,
2810 QDIO_MAX_BUFFERS_PER_Q
);
2811 qeth_initialize_working_pool_list(card
);
2812 /*give only as many buffers to hardware as we have buffer pool entries*/
2813 for (i
= 0; i
< card
->qdio
.in_buf_pool
.buf_count
- 1; ++i
)
2814 qeth_init_input_buffer(card
, &card
->qdio
.in_q
->bufs
[i
]);
2815 card
->qdio
.in_q
->next_buf_to_init
=
2816 card
->qdio
.in_buf_pool
.buf_count
- 1;
2817 rc
= do_QDIO(CARD_DDEV(card
), QDIO_FLAG_SYNC_INPUT
, 0, 0,
2818 card
->qdio
.in_buf_pool
.buf_count
- 1);
2820 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
2825 rc
= qeth_cq_init(card
);
2830 /* outbound queue */
2831 for (i
= 0; i
< card
->qdio
.no_out_queues
; ++i
) {
2832 qdio_reset_buffers(card
->qdio
.out_qs
[i
]->qdio_bufs
,
2833 QDIO_MAX_BUFFERS_PER_Q
);
2834 for (j
= 0; j
< QDIO_MAX_BUFFERS_PER_Q
; ++j
) {
2835 qeth_clear_output_buffer(card
->qdio
.out_qs
[i
],
2836 card
->qdio
.out_qs
[i
]->bufs
[j
],
2837 QETH_QDIO_BUF_EMPTY
);
2839 card
->qdio
.out_qs
[i
]->card
= card
;
2840 card
->qdio
.out_qs
[i
]->next_buf_to_fill
= 0;
2841 card
->qdio
.out_qs
[i
]->do_pack
= 0;
2842 atomic_set(&card
->qdio
.out_qs
[i
]->used_buffers
, 0);
2843 atomic_set(&card
->qdio
.out_qs
[i
]->set_pci_flags_count
, 0);
2844 atomic_set(&card
->qdio
.out_qs
[i
]->state
,
2845 QETH_OUT_Q_UNLOCKED
);
2849 EXPORT_SYMBOL_GPL(qeth_init_qdio_queues
);
2851 static inline __u8
qeth_get_ipa_adp_type(enum qeth_link_types link_type
)
2853 switch (link_type
) {
2854 case QETH_LINK_TYPE_HSTR
:
2861 static void qeth_fill_ipacmd_header(struct qeth_card
*card
,
2862 struct qeth_ipa_cmd
*cmd
, __u8 command
,
2863 enum qeth_prot_versions prot
)
2865 memset(cmd
, 0, sizeof(struct qeth_ipa_cmd
));
2866 cmd
->hdr
.command
= command
;
2867 cmd
->hdr
.initiator
= IPA_CMD_INITIATOR_HOST
;
2868 cmd
->hdr
.seqno
= card
->seqno
.ipa
;
2869 cmd
->hdr
.adapter_type
= qeth_get_ipa_adp_type(card
->info
.link_type
);
2870 cmd
->hdr
.rel_adapter_no
= (__u8
) card
->info
.portno
;
2871 if (card
->options
.layer2
)
2872 cmd
->hdr
.prim_version_no
= 2;
2874 cmd
->hdr
.prim_version_no
= 1;
2875 cmd
->hdr
.param_count
= 1;
2876 cmd
->hdr
.prot_version
= prot
;
2877 cmd
->hdr
.ipa_supported
= 0;
2878 cmd
->hdr
.ipa_enabled
= 0;
2881 struct qeth_cmd_buffer
*qeth_get_ipacmd_buffer(struct qeth_card
*card
,
2882 enum qeth_ipa_cmds ipacmd
, enum qeth_prot_versions prot
)
2884 struct qeth_cmd_buffer
*iob
;
2885 struct qeth_ipa_cmd
*cmd
;
2887 iob
= qeth_get_buffer(&card
->write
);
2889 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
2890 qeth_fill_ipacmd_header(card
, cmd
, ipacmd
, prot
);
2892 dev_warn(&card
->gdev
->dev
,
2893 "The qeth driver ran out of channel command buffers\n");
2894 QETH_DBF_MESSAGE(1, "%s The qeth driver ran out of channel command buffers",
2895 dev_name(&card
->gdev
->dev
));
2900 EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer
);
2902 void qeth_prepare_ipa_cmd(struct qeth_card
*card
, struct qeth_cmd_buffer
*iob
,
2905 memcpy(iob
->data
, IPA_PDU_HEADER
, IPA_PDU_HEADER_SIZE
);
2906 memcpy(QETH_IPA_CMD_PROT_TYPE(iob
->data
), &prot_type
, 1);
2907 memcpy(QETH_IPA_CMD_DEST_ADDR(iob
->data
),
2908 &card
->token
.ulp_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2910 EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd
);
2913 * qeth_send_ipa_cmd() - send an IPA command
2915 * See qeth_send_control_data() for explanation of the arguments.
2918 int qeth_send_ipa_cmd(struct qeth_card
*card
, struct qeth_cmd_buffer
*iob
,
2919 int (*reply_cb
)(struct qeth_card
*, struct qeth_reply
*,
2926 QETH_CARD_TEXT(card
, 4, "sendipa");
2928 if (card
->options
.layer2
)
2929 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
2930 prot_type
= QETH_PROT_OSN2
;
2932 prot_type
= QETH_PROT_LAYER2
;
2934 prot_type
= QETH_PROT_TCPIP
;
2935 qeth_prepare_ipa_cmd(card
, iob
, prot_type
);
2936 rc
= qeth_send_control_data(card
, IPA_CMD_LENGTH
,
2937 iob
, reply_cb
, reply_param
);
2939 qeth_clear_ipacmd_list(card
);
2940 qeth_schedule_recovery(card
);
2944 EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd
);
2946 static int qeth_send_startlan(struct qeth_card
*card
)
2949 struct qeth_cmd_buffer
*iob
;
2951 QETH_DBF_TEXT(SETUP
, 2, "strtlan");
2953 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_STARTLAN
, 0);
2956 rc
= qeth_send_ipa_cmd(card
, iob
, NULL
, NULL
);
2960 static int qeth_default_setadapterparms_cb(struct qeth_card
*card
,
2961 struct qeth_reply
*reply
, unsigned long data
)
2963 struct qeth_ipa_cmd
*cmd
;
2965 QETH_CARD_TEXT(card
, 4, "defadpcb");
2967 cmd
= (struct qeth_ipa_cmd
*) data
;
2968 if (cmd
->hdr
.return_code
== 0)
2969 cmd
->hdr
.return_code
=
2970 cmd
->data
.setadapterparms
.hdr
.return_code
;
2974 static int qeth_query_setadapterparms_cb(struct qeth_card
*card
,
2975 struct qeth_reply
*reply
, unsigned long data
)
2977 struct qeth_ipa_cmd
*cmd
;
2979 QETH_CARD_TEXT(card
, 3, "quyadpcb");
2981 cmd
= (struct qeth_ipa_cmd
*) data
;
2982 if (cmd
->data
.setadapterparms
.data
.query_cmds_supp
.lan_type
& 0x7f) {
2983 card
->info
.link_type
=
2984 cmd
->data
.setadapterparms
.data
.query_cmds_supp
.lan_type
;
2985 QETH_DBF_TEXT_(SETUP
, 2, "lnk %d", card
->info
.link_type
);
2987 card
->options
.adp
.supported_funcs
=
2988 cmd
->data
.setadapterparms
.data
.query_cmds_supp
.supported_cmds
;
2989 return qeth_default_setadapterparms_cb(card
, reply
, (unsigned long)cmd
);
2992 static struct qeth_cmd_buffer
*qeth_get_adapter_cmd(struct qeth_card
*card
,
2993 __u32 command
, __u32 cmdlen
)
2995 struct qeth_cmd_buffer
*iob
;
2996 struct qeth_ipa_cmd
*cmd
;
2998 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_SETADAPTERPARMS
,
3001 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
3002 cmd
->data
.setadapterparms
.hdr
.cmdlength
= cmdlen
;
3003 cmd
->data
.setadapterparms
.hdr
.command_code
= command
;
3004 cmd
->data
.setadapterparms
.hdr
.used_total
= 1;
3005 cmd
->data
.setadapterparms
.hdr
.seq_no
= 1;
3011 int qeth_query_setadapterparms(struct qeth_card
*card
)
3014 struct qeth_cmd_buffer
*iob
;
3016 QETH_CARD_TEXT(card
, 3, "queryadp");
3017 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_QUERY_COMMANDS_SUPPORTED
,
3018 sizeof(struct qeth_ipacmd_setadpparms
));
3021 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_query_setadapterparms_cb
, NULL
);
3024 EXPORT_SYMBOL_GPL(qeth_query_setadapterparms
);
3026 static int qeth_query_ipassists_cb(struct qeth_card
*card
,
3027 struct qeth_reply
*reply
, unsigned long data
)
3029 struct qeth_ipa_cmd
*cmd
;
3031 QETH_DBF_TEXT(SETUP
, 2, "qipasscb");
3033 cmd
= (struct qeth_ipa_cmd
*) data
;
3035 switch (cmd
->hdr
.return_code
) {
3036 case IPA_RC_NOTSUPP
:
3037 case IPA_RC_L2_UNSUPPORTED_CMD
:
3038 QETH_DBF_TEXT(SETUP
, 2, "ipaunsup");
3039 card
->options
.ipa4
.supported_funcs
|= IPA_SETADAPTERPARMS
;
3040 card
->options
.ipa6
.supported_funcs
|= IPA_SETADAPTERPARMS
;
3043 if (cmd
->hdr
.return_code
) {
3044 QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Unhandled "
3046 dev_name(&card
->gdev
->dev
),
3047 cmd
->hdr
.return_code
);
3052 if (cmd
->hdr
.prot_version
== QETH_PROT_IPV4
) {
3053 card
->options
.ipa4
.supported_funcs
= cmd
->hdr
.ipa_supported
;
3054 card
->options
.ipa4
.enabled_funcs
= cmd
->hdr
.ipa_enabled
;
3055 } else if (cmd
->hdr
.prot_version
== QETH_PROT_IPV6
) {
3056 card
->options
.ipa6
.supported_funcs
= cmd
->hdr
.ipa_supported
;
3057 card
->options
.ipa6
.enabled_funcs
= cmd
->hdr
.ipa_enabled
;
3059 QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Flawed LIC detected"
3060 "\n", dev_name(&card
->gdev
->dev
));
3064 int qeth_query_ipassists(struct qeth_card
*card
, enum qeth_prot_versions prot
)
3067 struct qeth_cmd_buffer
*iob
;
3069 QETH_DBF_TEXT_(SETUP
, 2, "qipassi%i", prot
);
3070 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_QIPASSIST
, prot
);
3073 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_query_ipassists_cb
, NULL
);
3076 EXPORT_SYMBOL_GPL(qeth_query_ipassists
);
3078 static int qeth_query_switch_attributes_cb(struct qeth_card
*card
,
3079 struct qeth_reply
*reply
, unsigned long data
)
3081 struct qeth_ipa_cmd
*cmd
;
3082 struct qeth_switch_info
*sw_info
;
3083 struct qeth_query_switch_attributes
*attrs
;
3085 QETH_CARD_TEXT(card
, 2, "qswiatcb");
3086 cmd
= (struct qeth_ipa_cmd
*) data
;
3087 sw_info
= (struct qeth_switch_info
*)reply
->param
;
3088 if (cmd
->data
.setadapterparms
.hdr
.return_code
== 0) {
3089 attrs
= &cmd
->data
.setadapterparms
.data
.query_switch_attributes
;
3090 sw_info
->capabilities
= attrs
->capabilities
;
3091 sw_info
->settings
= attrs
->settings
;
3092 QETH_CARD_TEXT_(card
, 2, "%04x%04x", sw_info
->capabilities
,
3095 qeth_default_setadapterparms_cb(card
, reply
, (unsigned long) cmd
);
3100 int qeth_query_switch_attributes(struct qeth_card
*card
,
3101 struct qeth_switch_info
*sw_info
)
3103 struct qeth_cmd_buffer
*iob
;
3105 QETH_CARD_TEXT(card
, 2, "qswiattr");
3106 if (!qeth_adp_supported(card
, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES
))
3108 if (!netif_carrier_ok(card
->dev
))
3110 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES
,
3111 sizeof(struct qeth_ipacmd_setadpparms_hdr
));
3114 return qeth_send_ipa_cmd(card
, iob
,
3115 qeth_query_switch_attributes_cb
, sw_info
);
3117 EXPORT_SYMBOL_GPL(qeth_query_switch_attributes
);
3119 static int qeth_query_setdiagass_cb(struct qeth_card
*card
,
3120 struct qeth_reply
*reply
, unsigned long data
)
3122 struct qeth_ipa_cmd
*cmd
;
3125 cmd
= (struct qeth_ipa_cmd
*)data
;
3126 rc
= cmd
->hdr
.return_code
;
3128 QETH_CARD_TEXT_(card
, 2, "diagq:%x", rc
);
3130 card
->info
.diagass_support
= cmd
->data
.diagass
.ext
;
3134 static int qeth_query_setdiagass(struct qeth_card
*card
)
3136 struct qeth_cmd_buffer
*iob
;
3137 struct qeth_ipa_cmd
*cmd
;
3139 QETH_DBF_TEXT(SETUP
, 2, "qdiagass");
3140 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_SET_DIAG_ASS
, 0);
3143 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
3144 cmd
->data
.diagass
.subcmd_len
= 16;
3145 cmd
->data
.diagass
.subcmd
= QETH_DIAGS_CMD_QUERY
;
3146 return qeth_send_ipa_cmd(card
, iob
, qeth_query_setdiagass_cb
, NULL
);
3149 static void qeth_get_trap_id(struct qeth_card
*card
, struct qeth_trap_id
*tid
)
3151 unsigned long info
= get_zeroed_page(GFP_KERNEL
);
3152 struct sysinfo_2_2_2
*info222
= (struct sysinfo_2_2_2
*)info
;
3153 struct sysinfo_3_2_2
*info322
= (struct sysinfo_3_2_2
*)info
;
3154 struct ccw_dev_id ccwid
;
3157 tid
->chpid
= card
->info
.chpid
;
3158 ccw_device_get_id(CARD_RDEV(card
), &ccwid
);
3159 tid
->ssid
= ccwid
.ssid
;
3160 tid
->devno
= ccwid
.devno
;
3163 level
= stsi(NULL
, 0, 0, 0);
3164 if ((level
>= 2) && (stsi(info222
, 2, 2, 2) == 0))
3165 tid
->lparnr
= info222
->lpar_number
;
3166 if ((level
>= 3) && (stsi(info322
, 3, 2, 2) == 0)) {
3167 EBCASC(info322
->vm
[0].name
, sizeof(info322
->vm
[0].name
));
3168 memcpy(tid
->vmname
, info322
->vm
[0].name
, sizeof(tid
->vmname
));
3174 static int qeth_hw_trap_cb(struct qeth_card
*card
,
3175 struct qeth_reply
*reply
, unsigned long data
)
3177 struct qeth_ipa_cmd
*cmd
;
3180 cmd
= (struct qeth_ipa_cmd
*)data
;
3181 rc
= cmd
->hdr
.return_code
;
3183 QETH_CARD_TEXT_(card
, 2, "trapc:%x", rc
);
3187 int qeth_hw_trap(struct qeth_card
*card
, enum qeth_diags_trap_action action
)
3189 struct qeth_cmd_buffer
*iob
;
3190 struct qeth_ipa_cmd
*cmd
;
3192 QETH_DBF_TEXT(SETUP
, 2, "diagtrap");
3193 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_SET_DIAG_ASS
, 0);
3196 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
3197 cmd
->data
.diagass
.subcmd_len
= 80;
3198 cmd
->data
.diagass
.subcmd
= QETH_DIAGS_CMD_TRAP
;
3199 cmd
->data
.diagass
.type
= 1;
3200 cmd
->data
.diagass
.action
= action
;
3202 case QETH_DIAGS_TRAP_ARM
:
3203 cmd
->data
.diagass
.options
= 0x0003;
3204 cmd
->data
.diagass
.ext
= 0x00010000 +
3205 sizeof(struct qeth_trap_id
);
3206 qeth_get_trap_id(card
,
3207 (struct qeth_trap_id
*)cmd
->data
.diagass
.cdata
);
3209 case QETH_DIAGS_TRAP_DISARM
:
3210 cmd
->data
.diagass
.options
= 0x0001;
3212 case QETH_DIAGS_TRAP_CAPTURE
:
3215 return qeth_send_ipa_cmd(card
, iob
, qeth_hw_trap_cb
, NULL
);
3217 EXPORT_SYMBOL_GPL(qeth_hw_trap
);
3219 static int qeth_check_qdio_errors(struct qeth_card
*card
,
3220 struct qdio_buffer
*buf
,
3221 unsigned int qdio_error
,
3222 const char *dbftext
)
3225 QETH_CARD_TEXT(card
, 2, dbftext
);
3226 QETH_CARD_TEXT_(card
, 2, " F15=%02X",
3227 buf
->element
[15].sflags
);
3228 QETH_CARD_TEXT_(card
, 2, " F14=%02X",
3229 buf
->element
[14].sflags
);
3230 QETH_CARD_TEXT_(card
, 2, " qerr=%X", qdio_error
);
3231 if ((buf
->element
[15].sflags
) == 0x12) {
3232 card
->stats
.rx_dropped
++;
3240 static void qeth_queue_input_buffer(struct qeth_card
*card
, int index
)
3242 struct qeth_qdio_q
*queue
= card
->qdio
.in_q
;
3243 struct list_head
*lh
;
3249 count
= (index
< queue
->next_buf_to_init
)?
3250 card
->qdio
.in_buf_pool
.buf_count
-
3251 (queue
->next_buf_to_init
- index
) :
3252 card
->qdio
.in_buf_pool
.buf_count
-
3253 (queue
->next_buf_to_init
+ QDIO_MAX_BUFFERS_PER_Q
- index
);
3254 /* only requeue at a certain threshold to avoid SIGAs */
3255 if (count
>= QETH_IN_BUF_REQUEUE_THRESHOLD(card
)) {
3256 for (i
= queue
->next_buf_to_init
;
3257 i
< queue
->next_buf_to_init
+ count
; ++i
) {
3258 if (qeth_init_input_buffer(card
,
3259 &queue
->bufs
[i
% QDIO_MAX_BUFFERS_PER_Q
])) {
3266 if (newcount
< count
) {
3267 /* we are in memory shortage so we switch back to
3268 traditional skb allocation and drop packages */
3269 atomic_set(&card
->force_alloc_skb
, 3);
3272 atomic_add_unless(&card
->force_alloc_skb
, -1, 0);
3277 list_for_each(lh
, &card
->qdio
.in_buf_pool
.entry_list
)
3279 if (i
== card
->qdio
.in_buf_pool
.buf_count
) {
3280 QETH_CARD_TEXT(card
, 2, "qsarbw");
3281 card
->reclaim_index
= index
;
3282 schedule_delayed_work(
3283 &card
->buffer_reclaim_work
,
3284 QETH_RECLAIM_WORK_TIME
);
3290 * according to old code it should be avoided to requeue all
3291 * 128 buffers in order to benefit from PCI avoidance.
3292 * this function keeps at least one buffer (the buffer at
3293 * 'index') un-requeued -> this buffer is the first buffer that
3294 * will be requeued the next time
3296 if (card
->options
.performance_stats
) {
3297 card
->perf_stats
.inbound_do_qdio_cnt
++;
3298 card
->perf_stats
.inbound_do_qdio_start_time
=
3301 rc
= do_QDIO(CARD_DDEV(card
), QDIO_FLAG_SYNC_INPUT
, 0,
3302 queue
->next_buf_to_init
, count
);
3303 if (card
->options
.performance_stats
)
3304 card
->perf_stats
.inbound_do_qdio_time
+=
3306 card
->perf_stats
.inbound_do_qdio_start_time
;
3308 QETH_CARD_TEXT(card
, 2, "qinberr");
3310 queue
->next_buf_to_init
= (queue
->next_buf_to_init
+ count
) %
3311 QDIO_MAX_BUFFERS_PER_Q
;
3315 static void qeth_buffer_reclaim_work(struct work_struct
*work
)
3317 struct qeth_card
*card
= container_of(work
, struct qeth_card
,
3318 buffer_reclaim_work
.work
);
3320 QETH_CARD_TEXT_(card
, 2, "brw:%x", card
->reclaim_index
);
3321 qeth_queue_input_buffer(card
, card
->reclaim_index
);
3324 static void qeth_handle_send_error(struct qeth_card
*card
,
3325 struct qeth_qdio_out_buffer
*buffer
, unsigned int qdio_err
)
3327 int sbalf15
= buffer
->buffer
->element
[15].sflags
;
3329 QETH_CARD_TEXT(card
, 6, "hdsnderr");
3330 if (card
->info
.type
== QETH_CARD_TYPE_IQD
) {
3337 qeth_check_qdio_errors(card
, buffer
->buffer
, qdio_err
, "qouterr");
3342 if ((sbalf15
>= 15) && (sbalf15
<= 31))
3345 QETH_CARD_TEXT(card
, 1, "lnkfail");
3346 QETH_CARD_TEXT_(card
, 1, "%04x %02x",
3347 (u16
)qdio_err
, (u8
)sbalf15
);
3351 * Switched to packing state if the number of used buffers on a queue
3352 * reaches a certain limit.
3354 static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q
*queue
)
3356 if (!queue
->do_pack
) {
3357 if (atomic_read(&queue
->used_buffers
)
3358 >= QETH_HIGH_WATERMARK_PACK
){
3359 /* switch non-PACKING -> PACKING */
3360 QETH_CARD_TEXT(queue
->card
, 6, "np->pack");
3361 if (queue
->card
->options
.performance_stats
)
3362 queue
->card
->perf_stats
.sc_dp_p
++;
3369 * Switches from packing to non-packing mode. If there is a packing
3370 * buffer on the queue this buffer will be prepared to be flushed.
3371 * In that case 1 is returned to inform the caller. If no buffer
3372 * has to be flushed, zero is returned.
3374 static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q
*queue
)
3376 struct qeth_qdio_out_buffer
*buffer
;
3377 int flush_count
= 0;
3379 if (queue
->do_pack
) {
3380 if (atomic_read(&queue
->used_buffers
)
3381 <= QETH_LOW_WATERMARK_PACK
) {
3382 /* switch PACKING -> non-PACKING */
3383 QETH_CARD_TEXT(queue
->card
, 6, "pack->np");
3384 if (queue
->card
->options
.performance_stats
)
3385 queue
->card
->perf_stats
.sc_p_dp
++;
3387 /* flush packing buffers */
3388 buffer
= queue
->bufs
[queue
->next_buf_to_fill
];
3389 if ((atomic_read(&buffer
->state
) ==
3390 QETH_QDIO_BUF_EMPTY
) &&
3391 (buffer
->next_element_to_fill
> 0)) {
3392 atomic_set(&buffer
->state
,
3393 QETH_QDIO_BUF_PRIMED
);
3395 queue
->next_buf_to_fill
=
3396 (queue
->next_buf_to_fill
+ 1) %
3397 QDIO_MAX_BUFFERS_PER_Q
;
3406 * Called to flush a packing buffer if no more pci flags are on the queue.
3407 * Checks if there is a packing buffer and prepares it to be flushed.
3408 * In that case returns 1, otherwise zero.
3410 static int qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q
*queue
)
3412 struct qeth_qdio_out_buffer
*buffer
;
3414 buffer
= queue
->bufs
[queue
->next_buf_to_fill
];
3415 if ((atomic_read(&buffer
->state
) == QETH_QDIO_BUF_EMPTY
) &&
3416 (buffer
->next_element_to_fill
> 0)) {
3417 /* it's a packing buffer */
3418 atomic_set(&buffer
->state
, QETH_QDIO_BUF_PRIMED
);
3419 queue
->next_buf_to_fill
=
3420 (queue
->next_buf_to_fill
+ 1) % QDIO_MAX_BUFFERS_PER_Q
;
3426 static void qeth_flush_buffers(struct qeth_qdio_out_q
*queue
, int index
,
3429 struct qeth_qdio_out_buffer
*buf
;
3432 unsigned int qdio_flags
;
3434 for (i
= index
; i
< index
+ count
; ++i
) {
3435 int bidx
= i
% QDIO_MAX_BUFFERS_PER_Q
;
3436 buf
= queue
->bufs
[bidx
];
3437 buf
->buffer
->element
[buf
->next_element_to_fill
- 1].eflags
|=
3438 SBAL_EFLAGS_LAST_ENTRY
;
3440 if (queue
->bufstates
)
3441 queue
->bufstates
[bidx
].user
= buf
;
3443 if (queue
->card
->info
.type
== QETH_CARD_TYPE_IQD
)
3446 if (!queue
->do_pack
) {
3447 if ((atomic_read(&queue
->used_buffers
) >=
3448 (QETH_HIGH_WATERMARK_PACK
-
3449 QETH_WATERMARK_PACK_FUZZ
)) &&
3450 !atomic_read(&queue
->set_pci_flags_count
)) {
3451 /* it's likely that we'll go to packing
3453 atomic_inc(&queue
->set_pci_flags_count
);
3454 buf
->buffer
->element
[0].sflags
|= SBAL_SFLAGS0_PCI_REQ
;
3457 if (!atomic_read(&queue
->set_pci_flags_count
)) {
3459 * there's no outstanding PCI any more, so we
3460 * have to request a PCI to be sure the the PCI
3461 * will wake at some time in the future then we
3462 * can flush packed buffers that might still be
3463 * hanging around, which can happen if no
3464 * further send was requested by the stack
3466 atomic_inc(&queue
->set_pci_flags_count
);
3467 buf
->buffer
->element
[0].sflags
|= SBAL_SFLAGS0_PCI_REQ
;
3472 netif_trans_update(queue
->card
->dev
);
3473 if (queue
->card
->options
.performance_stats
) {
3474 queue
->card
->perf_stats
.outbound_do_qdio_cnt
++;
3475 queue
->card
->perf_stats
.outbound_do_qdio_start_time
=
3478 qdio_flags
= QDIO_FLAG_SYNC_OUTPUT
;
3479 if (atomic_read(&queue
->set_pci_flags_count
))
3480 qdio_flags
|= QDIO_FLAG_PCI_OUT
;
3481 rc
= do_QDIO(CARD_DDEV(queue
->card
), qdio_flags
,
3482 queue
->queue_no
, index
, count
);
3483 if (queue
->card
->options
.performance_stats
)
3484 queue
->card
->perf_stats
.outbound_do_qdio_time
+=
3486 queue
->card
->perf_stats
.outbound_do_qdio_start_time
;
3487 atomic_add(count
, &queue
->used_buffers
);
3489 queue
->card
->stats
.tx_errors
+= count
;
3490 /* ignore temporary SIGA errors without busy condition */
3493 QETH_CARD_TEXT(queue
->card
, 2, "flushbuf");
3494 QETH_CARD_TEXT_(queue
->card
, 2, " q%d", queue
->queue_no
);
3495 QETH_CARD_TEXT_(queue
->card
, 2, " idx%d", index
);
3496 QETH_CARD_TEXT_(queue
->card
, 2, " c%d", count
);
3497 QETH_CARD_TEXT_(queue
->card
, 2, " err%d", rc
);
3499 /* this must not happen under normal circumstances. if it
3500 * happens something is really wrong -> recover */
3501 qeth_schedule_recovery(queue
->card
);
3504 if (queue
->card
->options
.performance_stats
)
3505 queue
->card
->perf_stats
.bufs_sent
+= count
;
3508 static void qeth_check_outbound_queue(struct qeth_qdio_out_q
*queue
)
3512 int q_was_packing
= 0;
3515 * check if weed have to switch to non-packing mode or if
3516 * we have to get a pci flag out on the queue
3518 if ((atomic_read(&queue
->used_buffers
) <= QETH_LOW_WATERMARK_PACK
) ||
3519 !atomic_read(&queue
->set_pci_flags_count
)) {
3520 if (atomic_xchg(&queue
->state
, QETH_OUT_Q_LOCKED_FLUSH
) ==
3521 QETH_OUT_Q_UNLOCKED
) {
3523 * If we get in here, there was no action in
3524 * do_send_packet. So, we check if there is a
3525 * packing buffer to be flushed here.
3527 netif_stop_queue(queue
->card
->dev
);
3528 index
= queue
->next_buf_to_fill
;
3529 q_was_packing
= queue
->do_pack
;
3530 /* queue->do_pack may change */
3532 flush_cnt
+= qeth_switch_to_nonpacking_if_needed(queue
);
3534 !atomic_read(&queue
->set_pci_flags_count
))
3536 qeth_flush_buffers_on_no_pci(queue
);
3537 if (queue
->card
->options
.performance_stats
&&
3539 queue
->card
->perf_stats
.bufs_sent_pack
+=
3542 qeth_flush_buffers(queue
, index
, flush_cnt
);
3543 atomic_set(&queue
->state
, QETH_OUT_Q_UNLOCKED
);
3548 void qeth_qdio_start_poll(struct ccw_device
*ccwdev
, int queue
,
3549 unsigned long card_ptr
)
3551 struct qeth_card
*card
= (struct qeth_card
*)card_ptr
;
3553 if (card
->dev
&& (card
->dev
->flags
& IFF_UP
))
3554 napi_schedule(&card
->napi
);
3556 EXPORT_SYMBOL_GPL(qeth_qdio_start_poll
);
3558 int qeth_configure_cq(struct qeth_card
*card
, enum qeth_cq cq
)
3562 if (card
->options
.cq
== QETH_CQ_NOTAVAILABLE
) {
3566 if (card
->options
.cq
== cq
) {
3571 if (card
->state
!= CARD_STATE_DOWN
&&
3572 card
->state
!= CARD_STATE_RECOVER
) {
3577 qeth_free_qdio_buffers(card
);
3578 card
->options
.cq
= cq
;
3585 EXPORT_SYMBOL_GPL(qeth_configure_cq
);
3588 static void qeth_qdio_cq_handler(struct qeth_card
*card
,
3589 unsigned int qdio_err
,
3590 unsigned int queue
, int first_element
, int count
) {
3591 struct qeth_qdio_q
*cq
= card
->qdio
.c_q
;
3595 if (!qeth_is_cq(card
, queue
))
3598 QETH_CARD_TEXT_(card
, 5, "qcqhe%d", first_element
);
3599 QETH_CARD_TEXT_(card
, 5, "qcqhc%d", count
);
3600 QETH_CARD_TEXT_(card
, 5, "qcqherr%d", qdio_err
);
3603 netif_stop_queue(card
->dev
);
3604 qeth_schedule_recovery(card
);
3608 if (card
->options
.performance_stats
) {
3609 card
->perf_stats
.cq_cnt
++;
3610 card
->perf_stats
.cq_start_time
= qeth_get_micros();
3613 for (i
= first_element
; i
< first_element
+ count
; ++i
) {
3614 int bidx
= i
% QDIO_MAX_BUFFERS_PER_Q
;
3615 struct qdio_buffer
*buffer
= cq
->qdio_bufs
[bidx
];
3619 while ((e
< QDIO_MAX_ELEMENTS_PER_BUFFER
) &&
3620 buffer
->element
[e
].addr
) {
3621 unsigned long phys_aob_addr
;
3623 phys_aob_addr
= (unsigned long) buffer
->element
[e
].addr
;
3624 qeth_qdio_handle_aob(card
, phys_aob_addr
);
3625 buffer
->element
[e
].addr
= NULL
;
3626 buffer
->element
[e
].eflags
= 0;
3627 buffer
->element
[e
].sflags
= 0;
3628 buffer
->element
[e
].length
= 0;
3633 buffer
->element
[15].eflags
= 0;
3634 buffer
->element
[15].sflags
= 0;
3636 rc
= do_QDIO(CARD_DDEV(card
), QDIO_FLAG_SYNC_INPUT
, queue
,
3637 card
->qdio
.c_q
->next_buf_to_init
,
3640 dev_warn(&card
->gdev
->dev
,
3641 "QDIO reported an error, rc=%i\n", rc
);
3642 QETH_CARD_TEXT(card
, 2, "qcqherr");
3644 card
->qdio
.c_q
->next_buf_to_init
= (card
->qdio
.c_q
->next_buf_to_init
3645 + count
) % QDIO_MAX_BUFFERS_PER_Q
;
3647 netif_wake_queue(card
->dev
);
3649 if (card
->options
.performance_stats
) {
3650 int delta_t
= qeth_get_micros();
3651 delta_t
-= card
->perf_stats
.cq_start_time
;
3652 card
->perf_stats
.cq_time
+= delta_t
;
3658 void qeth_qdio_input_handler(struct ccw_device
*ccwdev
, unsigned int qdio_err
,
3659 unsigned int queue
, int first_elem
, int count
,
3660 unsigned long card_ptr
)
3662 struct qeth_card
*card
= (struct qeth_card
*)card_ptr
;
3664 QETH_CARD_TEXT_(card
, 2, "qihq%d", queue
);
3665 QETH_CARD_TEXT_(card
, 2, "qiec%d", qdio_err
);
3667 if (qeth_is_cq(card
, queue
))
3668 qeth_qdio_cq_handler(card
, qdio_err
, queue
, first_elem
, count
);
3670 qeth_schedule_recovery(card
);
3674 EXPORT_SYMBOL_GPL(qeth_qdio_input_handler
);
3676 void qeth_qdio_output_handler(struct ccw_device
*ccwdev
,
3677 unsigned int qdio_error
, int __queue
, int first_element
,
3678 int count
, unsigned long card_ptr
)
3680 struct qeth_card
*card
= (struct qeth_card
*) card_ptr
;
3681 struct qeth_qdio_out_q
*queue
= card
->qdio
.out_qs
[__queue
];
3682 struct qeth_qdio_out_buffer
*buffer
;
3685 QETH_CARD_TEXT(card
, 6, "qdouhdl");
3686 if (qdio_error
& QDIO_ERROR_FATAL
) {
3687 QETH_CARD_TEXT(card
, 2, "achkcond");
3688 netif_stop_queue(card
->dev
);
3689 qeth_schedule_recovery(card
);
3692 if (card
->options
.performance_stats
) {
3693 card
->perf_stats
.outbound_handler_cnt
++;
3694 card
->perf_stats
.outbound_handler_start_time
=
3697 for (i
= first_element
; i
< (first_element
+ count
); ++i
) {
3698 int bidx
= i
% QDIO_MAX_BUFFERS_PER_Q
;
3699 buffer
= queue
->bufs
[bidx
];
3700 qeth_handle_send_error(card
, buffer
, qdio_error
);
3702 if (queue
->bufstates
&&
3703 (queue
->bufstates
[bidx
].flags
&
3704 QDIO_OUTBUF_STATE_FLAG_PENDING
) != 0) {
3705 WARN_ON_ONCE(card
->options
.cq
!= QETH_CQ_ENABLED
);
3707 if (atomic_cmpxchg(&buffer
->state
,
3708 QETH_QDIO_BUF_PRIMED
,
3709 QETH_QDIO_BUF_PENDING
) ==
3710 QETH_QDIO_BUF_PRIMED
) {
3711 qeth_notify_skbs(queue
, buffer
,
3714 buffer
->aob
= queue
->bufstates
[bidx
].aob
;
3715 QETH_CARD_TEXT_(queue
->card
, 5, "pel%d", bidx
);
3716 QETH_CARD_TEXT(queue
->card
, 5, "aob");
3717 QETH_CARD_TEXT_(queue
->card
, 5, "%lx",
3718 virt_to_phys(buffer
->aob
));
3719 if (qeth_init_qdio_out_buf(queue
, bidx
)) {
3720 QETH_CARD_TEXT(card
, 2, "outofbuf");
3721 qeth_schedule_recovery(card
);
3724 if (card
->options
.cq
== QETH_CQ_ENABLED
) {
3725 enum iucv_tx_notify n
;
3727 n
= qeth_compute_cq_notification(
3728 buffer
->buffer
->element
[15].sflags
, 0);
3729 qeth_notify_skbs(queue
, buffer
, n
);
3732 qeth_clear_output_buffer(queue
, buffer
,
3733 QETH_QDIO_BUF_EMPTY
);
3735 qeth_cleanup_handled_pending(queue
, bidx
, 0);
3737 atomic_sub(count
, &queue
->used_buffers
);
3738 /* check if we need to do something on this outbound queue */
3739 if (card
->info
.type
!= QETH_CARD_TYPE_IQD
)
3740 qeth_check_outbound_queue(queue
);
3742 netif_wake_queue(queue
->card
->dev
);
3743 if (card
->options
.performance_stats
)
3744 card
->perf_stats
.outbound_handler_time
+= qeth_get_micros() -
3745 card
->perf_stats
.outbound_handler_start_time
;
3747 EXPORT_SYMBOL_GPL(qeth_qdio_output_handler
);
3749 /* We cannot use outbound queue 3 for unicast packets on HiperSockets */
3750 static inline int qeth_cut_iqd_prio(struct qeth_card
*card
, int queue_num
)
3752 if ((card
->info
.type
== QETH_CARD_TYPE_IQD
) && (queue_num
== 3))
3758 * Note: Function assumes that we have 4 outbound queues.
3760 int qeth_get_priority_queue(struct qeth_card
*card
, struct sk_buff
*skb
,
3761 int ipv
, int cast_type
)
3766 if (cast_type
&& card
->info
.is_multicast_different
)
3767 return card
->info
.is_multicast_different
&
3768 (card
->qdio
.no_out_queues
- 1);
3770 switch (card
->qdio
.do_prio_queueing
) {
3771 case QETH_PRIO_Q_ING_TOS
:
3772 case QETH_PRIO_Q_ING_PREC
:
3775 tos
= ipv4_get_dsfield(ip_hdr(skb
));
3778 tos
= ipv6_get_dsfield(ipv6_hdr(skb
));
3781 return card
->qdio
.default_out_queue
;
3783 if (card
->qdio
.do_prio_queueing
== QETH_PRIO_Q_ING_PREC
)
3784 return qeth_cut_iqd_prio(card
, ~tos
>> 6 & 3);
3785 if (tos
& IPTOS_MINCOST
)
3786 return qeth_cut_iqd_prio(card
, 3);
3787 if (tos
& IPTOS_RELIABILITY
)
3789 if (tos
& IPTOS_THROUGHPUT
)
3791 if (tos
& IPTOS_LOWDELAY
)
3794 case QETH_PRIO_Q_ING_SKB
:
3795 if (skb
->priority
> 5)
3797 return qeth_cut_iqd_prio(card
, ~skb
->priority
>> 1 & 3);
3798 case QETH_PRIO_Q_ING_VLAN
:
3799 tci
= &((struct ethhdr
*)skb
->data
)->h_proto
;
3800 if (be16_to_cpu(*tci
) == ETH_P_8021Q
)
3801 return qeth_cut_iqd_prio(card
,
3802 ~be16_to_cpu(*(tci
+ 1)) >> (VLAN_PRIO_SHIFT
+ 1) & 3);
3807 return card
->qdio
.default_out_queue
;
3809 EXPORT_SYMBOL_GPL(qeth_get_priority_queue
);
3812 * qeth_get_elements_for_frags() - find number of SBALEs for skb frags.
3815 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
3816 * fragmented part of the SKB. Returns zero for linear SKB.
3818 int qeth_get_elements_for_frags(struct sk_buff
*skb
)
3820 int cnt
, elements
= 0;
3822 for (cnt
= 0; cnt
< skb_shinfo(skb
)->nr_frags
; cnt
++) {
3823 struct skb_frag_struct
*frag
= &skb_shinfo(skb
)->frags
[cnt
];
3825 elements
+= qeth_get_elements_for_range(
3826 (addr_t
)skb_frag_address(frag
),
3827 (addr_t
)skb_frag_address(frag
) + skb_frag_size(frag
));
3831 EXPORT_SYMBOL_GPL(qeth_get_elements_for_frags
);
3834 * qeth_get_elements_no() - find number of SBALEs for skb data, inc. frags.
3835 * @card: qeth card structure, to check max. elems.
3837 * @extra_elems: extra elems needed, to check against max.
3838 * @data_offset: range starts at skb->data + data_offset
3840 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
3841 * skb data, including linear part and fragments. Checks if the result plus
3842 * extra_elems fits under the limit for the card. Returns 0 if it does not.
3843 * Note: extra_elems is not included in the returned result.
3845 int qeth_get_elements_no(struct qeth_card
*card
,
3846 struct sk_buff
*skb
, int extra_elems
, int data_offset
)
3848 int elements
= qeth_get_elements_for_range(
3849 (addr_t
)skb
->data
+ data_offset
,
3850 (addr_t
)skb
->data
+ skb_headlen(skb
)) +
3851 qeth_get_elements_for_frags(skb
);
3853 if ((elements
+ extra_elems
) > QETH_MAX_BUFFER_ELEMENTS(card
)) {
3854 QETH_DBF_MESSAGE(2, "Invalid size of IP packet "
3855 "(Number=%d / Length=%d). Discarded.\n",
3856 elements
+ extra_elems
, skb
->len
);
3861 EXPORT_SYMBOL_GPL(qeth_get_elements_no
);
3863 int qeth_hdr_chk_and_bounce(struct sk_buff
*skb
, struct qeth_hdr
**hdr
, int len
)
3865 int hroom
, inpage
, rest
;
3867 if (((unsigned long)skb
->data
& PAGE_MASK
) !=
3868 (((unsigned long)skb
->data
+ len
- 1) & PAGE_MASK
)) {
3869 hroom
= skb_headroom(skb
);
3870 inpage
= PAGE_SIZE
- ((unsigned long) skb
->data
% PAGE_SIZE
);
3871 rest
= len
- inpage
;
3874 memmove(skb
->data
- rest
, skb
->data
, skb_headlen(skb
));
3877 *hdr
= (struct qeth_hdr
*)skb
->data
;
3878 QETH_DBF_MESSAGE(2, "skb bounce len: %d rest: %d\n", len
, rest
);
3882 EXPORT_SYMBOL_GPL(qeth_hdr_chk_and_bounce
);
3884 static inline void __qeth_fill_buffer(struct sk_buff
*skb
,
3885 struct qdio_buffer
*buffer
, int is_tso
, int *next_element_to_fill
,
3888 int length
= skb_headlen(skb
);
3893 struct skb_frag_struct
*frag
;
3895 element
= *next_element_to_fill
;
3897 first_lap
= (is_tso
== 0 ? 1 : 0);
3900 data
= skb
->data
+ offset
;
3905 while (length
> 0) {
3906 /* length_here is the remaining amount of data in this page */
3907 length_here
= PAGE_SIZE
- ((unsigned long) data
% PAGE_SIZE
);
3908 if (length
< length_here
)
3909 length_here
= length
;
3911 buffer
->element
[element
].addr
= data
;
3912 buffer
->element
[element
].length
= length_here
;
3913 length
-= length_here
;
3916 if (skb_shinfo(skb
)->nr_frags
)
3917 buffer
->element
[element
].eflags
=
3918 SBAL_EFLAGS_FIRST_FRAG
;
3920 buffer
->element
[element
].eflags
= 0;
3922 buffer
->element
[element
].eflags
=
3923 SBAL_EFLAGS_MIDDLE_FRAG
;
3926 buffer
->element
[element
].eflags
=
3927 SBAL_EFLAGS_FIRST_FRAG
;
3929 buffer
->element
[element
].eflags
=
3930 SBAL_EFLAGS_MIDDLE_FRAG
;
3932 data
+= length_here
;
3937 for (cnt
= 0; cnt
< skb_shinfo(skb
)->nr_frags
; cnt
++) {
3938 frag
= &skb_shinfo(skb
)->frags
[cnt
];
3939 data
= (char *)page_to_phys(skb_frag_page(frag
)) +
3941 length
= frag
->size
;
3942 while (length
> 0) {
3943 length_here
= PAGE_SIZE
-
3944 ((unsigned long) data
% PAGE_SIZE
);
3945 if (length
< length_here
)
3946 length_here
= length
;
3948 buffer
->element
[element
].addr
= data
;
3949 buffer
->element
[element
].length
= length_here
;
3950 buffer
->element
[element
].eflags
=
3951 SBAL_EFLAGS_MIDDLE_FRAG
;
3952 length
-= length_here
;
3953 data
+= length_here
;
3958 if (buffer
->element
[element
- 1].eflags
)
3959 buffer
->element
[element
- 1].eflags
= SBAL_EFLAGS_LAST_FRAG
;
3960 *next_element_to_fill
= element
;
3963 static inline int qeth_fill_buffer(struct qeth_qdio_out_q
*queue
,
3964 struct qeth_qdio_out_buffer
*buf
, struct sk_buff
*skb
,
3965 struct qeth_hdr
*hdr
, int offset
, int hd_len
)
3967 struct qdio_buffer
*buffer
;
3968 int flush_cnt
= 0, hdr_len
, large_send
= 0;
3970 buffer
= buf
->buffer
;
3971 atomic_inc(&skb
->users
);
3972 skb_queue_tail(&buf
->skb_list
, skb
);
3974 /*check first on TSO ....*/
3975 if (hdr
->hdr
.l3
.id
== QETH_HEADER_TYPE_TSO
) {
3976 int element
= buf
->next_element_to_fill
;
3978 hdr_len
= sizeof(struct qeth_hdr_tso
) +
3979 ((struct qeth_hdr_tso
*)hdr
)->ext
.dg_hdr_len
;
3980 /*fill first buffer entry only with header information */
3981 buffer
->element
[element
].addr
= skb
->data
;
3982 buffer
->element
[element
].length
= hdr_len
;
3983 buffer
->element
[element
].eflags
= SBAL_EFLAGS_FIRST_FRAG
;
3984 buf
->next_element_to_fill
++;
3985 skb
->data
+= hdr_len
;
3986 skb
->len
-= hdr_len
;
3991 int element
= buf
->next_element_to_fill
;
3992 buffer
->element
[element
].addr
= hdr
;
3993 buffer
->element
[element
].length
= sizeof(struct qeth_hdr
) +
3995 buffer
->element
[element
].eflags
= SBAL_EFLAGS_FIRST_FRAG
;
3996 buf
->is_header
[element
] = 1;
3997 buf
->next_element_to_fill
++;
4000 __qeth_fill_buffer(skb
, buffer
, large_send
,
4001 (int *)&buf
->next_element_to_fill
, offset
);
4003 if (!queue
->do_pack
) {
4004 QETH_CARD_TEXT(queue
->card
, 6, "fillbfnp");
4005 /* set state to PRIMED -> will be flushed */
4006 atomic_set(&buf
->state
, QETH_QDIO_BUF_PRIMED
);
4009 QETH_CARD_TEXT(queue
->card
, 6, "fillbfpa");
4010 if (queue
->card
->options
.performance_stats
)
4011 queue
->card
->perf_stats
.skbs_sent_pack
++;
4012 if (buf
->next_element_to_fill
>=
4013 QETH_MAX_BUFFER_ELEMENTS(queue
->card
)) {
4015 * packed buffer if full -> set state PRIMED
4016 * -> will be flushed
4018 atomic_set(&buf
->state
, QETH_QDIO_BUF_PRIMED
);
4025 int qeth_do_send_packet_fast(struct qeth_card
*card
,
4026 struct qeth_qdio_out_q
*queue
, struct sk_buff
*skb
,
4027 struct qeth_hdr
*hdr
, int offset
, int hd_len
)
4029 struct qeth_qdio_out_buffer
*buffer
;
4032 /* spin until we get the queue ... */
4033 while (atomic_cmpxchg(&queue
->state
, QETH_OUT_Q_UNLOCKED
,
4034 QETH_OUT_Q_LOCKED
) != QETH_OUT_Q_UNLOCKED
);
4035 /* ... now we've got the queue */
4036 index
= queue
->next_buf_to_fill
;
4037 buffer
= queue
->bufs
[queue
->next_buf_to_fill
];
4039 * check if buffer is empty to make sure that we do not 'overtake'
4040 * ourselves and try to fill a buffer that is already primed
4042 if (atomic_read(&buffer
->state
) != QETH_QDIO_BUF_EMPTY
)
4044 queue
->next_buf_to_fill
= (queue
->next_buf_to_fill
+ 1) %
4045 QDIO_MAX_BUFFERS_PER_Q
;
4046 atomic_set(&queue
->state
, QETH_OUT_Q_UNLOCKED
);
4047 qeth_fill_buffer(queue
, buffer
, skb
, hdr
, offset
, hd_len
);
4048 qeth_flush_buffers(queue
, index
, 1);
4051 atomic_set(&queue
->state
, QETH_OUT_Q_UNLOCKED
);
4054 EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast
);
4056 int qeth_do_send_packet(struct qeth_card
*card
, struct qeth_qdio_out_q
*queue
,
4057 struct sk_buff
*skb
, struct qeth_hdr
*hdr
,
4058 int elements_needed
)
4060 struct qeth_qdio_out_buffer
*buffer
;
4062 int flush_count
= 0;
4067 /* spin until we get the queue ... */
4068 while (atomic_cmpxchg(&queue
->state
, QETH_OUT_Q_UNLOCKED
,
4069 QETH_OUT_Q_LOCKED
) != QETH_OUT_Q_UNLOCKED
);
4070 start_index
= queue
->next_buf_to_fill
;
4071 buffer
= queue
->bufs
[queue
->next_buf_to_fill
];
4073 * check if buffer is empty to make sure that we do not 'overtake'
4074 * ourselves and try to fill a buffer that is already primed
4076 if (atomic_read(&buffer
->state
) != QETH_QDIO_BUF_EMPTY
) {
4077 atomic_set(&queue
->state
, QETH_OUT_Q_UNLOCKED
);
4080 /* check if we need to switch packing state of this queue */
4081 qeth_switch_to_packing_if_needed(queue
);
4082 if (queue
->do_pack
) {
4084 /* does packet fit in current buffer? */
4085 if ((QETH_MAX_BUFFER_ELEMENTS(card
) -
4086 buffer
->next_element_to_fill
) < elements_needed
) {
4087 /* ... no -> set state PRIMED */
4088 atomic_set(&buffer
->state
, QETH_QDIO_BUF_PRIMED
);
4090 queue
->next_buf_to_fill
=
4091 (queue
->next_buf_to_fill
+ 1) %
4092 QDIO_MAX_BUFFERS_PER_Q
;
4093 buffer
= queue
->bufs
[queue
->next_buf_to_fill
];
4094 /* we did a step forward, so check buffer state
4096 if (atomic_read(&buffer
->state
) !=
4097 QETH_QDIO_BUF_EMPTY
) {
4098 qeth_flush_buffers(queue
, start_index
,
4100 atomic_set(&queue
->state
,
4101 QETH_OUT_Q_UNLOCKED
);
4106 tmp
= qeth_fill_buffer(queue
, buffer
, skb
, hdr
, -1, 0);
4107 queue
->next_buf_to_fill
= (queue
->next_buf_to_fill
+ tmp
) %
4108 QDIO_MAX_BUFFERS_PER_Q
;
4111 qeth_flush_buffers(queue
, start_index
, flush_count
);
4112 else if (!atomic_read(&queue
->set_pci_flags_count
))
4113 atomic_xchg(&queue
->state
, QETH_OUT_Q_LOCKED_FLUSH
);
4115 * queue->state will go from LOCKED -> UNLOCKED or from
4116 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4117 * (switch packing state or flush buffer to get another pci flag out).
4118 * In that case we will enter this loop
4120 while (atomic_dec_return(&queue
->state
)) {
4122 start_index
= queue
->next_buf_to_fill
;
4123 /* check if we can go back to non-packing state */
4124 flush_count
+= qeth_switch_to_nonpacking_if_needed(queue
);
4126 * check if we need to flush a packing buffer to get a pci
4127 * flag out on the queue
4129 if (!flush_count
&& !atomic_read(&queue
->set_pci_flags_count
))
4130 flush_count
+= qeth_flush_buffers_on_no_pci(queue
);
4132 qeth_flush_buffers(queue
, start_index
, flush_count
);
4134 /* at this point the queue is UNLOCKED again */
4135 if (queue
->card
->options
.performance_stats
&& do_pack
)
4136 queue
->card
->perf_stats
.bufs_sent_pack
+= flush_count
;
4140 EXPORT_SYMBOL_GPL(qeth_do_send_packet
);
4142 static int qeth_setadp_promisc_mode_cb(struct qeth_card
*card
,
4143 struct qeth_reply
*reply
, unsigned long data
)
4145 struct qeth_ipa_cmd
*cmd
;
4146 struct qeth_ipacmd_setadpparms
*setparms
;
4148 QETH_CARD_TEXT(card
, 4, "prmadpcb");
4150 cmd
= (struct qeth_ipa_cmd
*) data
;
4151 setparms
= &(cmd
->data
.setadapterparms
);
4153 qeth_default_setadapterparms_cb(card
, reply
, (unsigned long)cmd
);
4154 if (cmd
->hdr
.return_code
) {
4155 QETH_CARD_TEXT_(card
, 4, "prmrc%x", cmd
->hdr
.return_code
);
4156 setparms
->data
.mode
= SET_PROMISC_MODE_OFF
;
4158 card
->info
.promisc_mode
= setparms
->data
.mode
;
4162 void qeth_setadp_promisc_mode(struct qeth_card
*card
)
4164 enum qeth_ipa_promisc_modes mode
;
4165 struct net_device
*dev
= card
->dev
;
4166 struct qeth_cmd_buffer
*iob
;
4167 struct qeth_ipa_cmd
*cmd
;
4169 QETH_CARD_TEXT(card
, 4, "setprom");
4171 if (((dev
->flags
& IFF_PROMISC
) &&
4172 (card
->info
.promisc_mode
== SET_PROMISC_MODE_ON
)) ||
4173 (!(dev
->flags
& IFF_PROMISC
) &&
4174 (card
->info
.promisc_mode
== SET_PROMISC_MODE_OFF
)))
4176 mode
= SET_PROMISC_MODE_OFF
;
4177 if (dev
->flags
& IFF_PROMISC
)
4178 mode
= SET_PROMISC_MODE_ON
;
4179 QETH_CARD_TEXT_(card
, 4, "mode:%x", mode
);
4181 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_SET_PROMISC_MODE
,
4182 sizeof(struct qeth_ipacmd_setadpparms_hdr
) + 8);
4185 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+ IPA_PDU_HEADER_SIZE
);
4186 cmd
->data
.setadapterparms
.data
.mode
= mode
;
4187 qeth_send_ipa_cmd(card
, iob
, qeth_setadp_promisc_mode_cb
, NULL
);
4189 EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode
);
4191 int qeth_change_mtu(struct net_device
*dev
, int new_mtu
)
4193 struct qeth_card
*card
;
4196 card
= dev
->ml_priv
;
4198 QETH_CARD_TEXT(card
, 4, "chgmtu");
4199 sprintf(dbf_text
, "%8x", new_mtu
);
4200 QETH_CARD_TEXT(card
, 4, dbf_text
);
4202 if ((!qeth_is_supported(card
, IPA_IP_FRAGMENTATION
)) &&
4203 (!qeth_mtu_is_valid(card
, new_mtu
)))
4208 EXPORT_SYMBOL_GPL(qeth_change_mtu
);
4210 struct net_device_stats
*qeth_get_stats(struct net_device
*dev
)
4212 struct qeth_card
*card
;
4214 card
= dev
->ml_priv
;
4216 QETH_CARD_TEXT(card
, 5, "getstat");
4218 return &card
->stats
;
4220 EXPORT_SYMBOL_GPL(qeth_get_stats
);
4222 static int qeth_setadpparms_change_macaddr_cb(struct qeth_card
*card
,
4223 struct qeth_reply
*reply
, unsigned long data
)
4225 struct qeth_ipa_cmd
*cmd
;
4227 QETH_CARD_TEXT(card
, 4, "chgmaccb");
4229 cmd
= (struct qeth_ipa_cmd
*) data
;
4230 if (!card
->options
.layer2
||
4231 !(card
->info
.mac_bits
& QETH_LAYER2_MAC_READ
)) {
4232 memcpy(card
->dev
->dev_addr
,
4233 &cmd
->data
.setadapterparms
.data
.change_addr
.addr
,
4235 card
->info
.mac_bits
|= QETH_LAYER2_MAC_READ
;
4237 qeth_default_setadapterparms_cb(card
, reply
, (unsigned long) cmd
);
4241 int qeth_setadpparms_change_macaddr(struct qeth_card
*card
)
4244 struct qeth_cmd_buffer
*iob
;
4245 struct qeth_ipa_cmd
*cmd
;
4247 QETH_CARD_TEXT(card
, 4, "chgmac");
4249 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_ALTER_MAC_ADDRESS
,
4250 sizeof(struct qeth_ipacmd_setadpparms_hdr
) +
4251 sizeof(struct qeth_change_addr
));
4254 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
4255 cmd
->data
.setadapterparms
.data
.change_addr
.cmd
= CHANGE_ADDR_READ_MAC
;
4256 cmd
->data
.setadapterparms
.data
.change_addr
.addr_size
= OSA_ADDR_LEN
;
4257 memcpy(&cmd
->data
.setadapterparms
.data
.change_addr
.addr
,
4258 card
->dev
->dev_addr
, OSA_ADDR_LEN
);
4259 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_setadpparms_change_macaddr_cb
,
4263 EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr
);
4265 static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card
*card
,
4266 struct qeth_reply
*reply
, unsigned long data
)
4268 struct qeth_ipa_cmd
*cmd
;
4269 struct qeth_set_access_ctrl
*access_ctrl_req
;
4270 int fallback
= *(int *)reply
->param
;
4272 QETH_CARD_TEXT(card
, 4, "setaccb");
4274 cmd
= (struct qeth_ipa_cmd
*) data
;
4275 access_ctrl_req
= &cmd
->data
.setadapterparms
.data
.set_access_ctrl
;
4276 QETH_DBF_TEXT_(SETUP
, 2, "setaccb");
4277 QETH_DBF_TEXT_(SETUP
, 2, "%s", card
->gdev
->dev
.kobj
.name
);
4278 QETH_DBF_TEXT_(SETUP
, 2, "rc=%d",
4279 cmd
->data
.setadapterparms
.hdr
.return_code
);
4280 if (cmd
->data
.setadapterparms
.hdr
.return_code
!=
4281 SET_ACCESS_CTRL_RC_SUCCESS
)
4282 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%s,%d)==%d\n",
4283 card
->gdev
->dev
.kobj
.name
,
4284 access_ctrl_req
->subcmd_code
,
4285 cmd
->data
.setadapterparms
.hdr
.return_code
);
4286 switch (cmd
->data
.setadapterparms
.hdr
.return_code
) {
4287 case SET_ACCESS_CTRL_RC_SUCCESS
:
4288 if (card
->options
.isolation
== ISOLATION_MODE_NONE
) {
4289 dev_info(&card
->gdev
->dev
,
4290 "QDIO data connection isolation is deactivated\n");
4292 dev_info(&card
->gdev
->dev
,
4293 "QDIO data connection isolation is activated\n");
4296 case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED
:
4297 QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already "
4298 "deactivated\n", dev_name(&card
->gdev
->dev
));
4300 card
->options
.isolation
= card
->options
.prev_isolation
;
4302 case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED
:
4303 QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already"
4304 " activated\n", dev_name(&card
->gdev
->dev
));
4306 card
->options
.isolation
= card
->options
.prev_isolation
;
4308 case SET_ACCESS_CTRL_RC_NOT_SUPPORTED
:
4309 dev_err(&card
->gdev
->dev
, "Adapter does not "
4310 "support QDIO data connection isolation\n");
4312 case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER
:
4313 dev_err(&card
->gdev
->dev
,
4314 "Adapter is dedicated. "
4315 "QDIO data connection isolation not supported\n");
4317 card
->options
.isolation
= card
->options
.prev_isolation
;
4319 case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF
:
4320 dev_err(&card
->gdev
->dev
,
4321 "TSO does not permit QDIO data connection isolation\n");
4323 card
->options
.isolation
= card
->options
.prev_isolation
;
4325 case SET_ACCESS_CTRL_RC_REFLREL_UNSUPPORTED
:
4326 dev_err(&card
->gdev
->dev
, "The adjacent switch port does not "
4327 "support reflective relay mode\n");
4329 card
->options
.isolation
= card
->options
.prev_isolation
;
4331 case SET_ACCESS_CTRL_RC_REFLREL_FAILED
:
4332 dev_err(&card
->gdev
->dev
, "The reflective relay mode cannot be "
4333 "enabled at the adjacent switch port");
4335 card
->options
.isolation
= card
->options
.prev_isolation
;
4337 case SET_ACCESS_CTRL_RC_REFLREL_DEACT_FAILED
:
4338 dev_warn(&card
->gdev
->dev
, "Turning off reflective relay mode "
4339 "at the adjacent switch failed\n");
4342 /* this should never happen */
4344 card
->options
.isolation
= card
->options
.prev_isolation
;
4347 qeth_default_setadapterparms_cb(card
, reply
, (unsigned long) cmd
);
4351 static int qeth_setadpparms_set_access_ctrl(struct qeth_card
*card
,
4352 enum qeth_ipa_isolation_modes isolation
, int fallback
)
4355 struct qeth_cmd_buffer
*iob
;
4356 struct qeth_ipa_cmd
*cmd
;
4357 struct qeth_set_access_ctrl
*access_ctrl_req
;
4359 QETH_CARD_TEXT(card
, 4, "setacctl");
4361 QETH_DBF_TEXT_(SETUP
, 2, "setacctl");
4362 QETH_DBF_TEXT_(SETUP
, 2, "%s", card
->gdev
->dev
.kobj
.name
);
4364 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_SET_ACCESS_CONTROL
,
4365 sizeof(struct qeth_ipacmd_setadpparms_hdr
) +
4366 sizeof(struct qeth_set_access_ctrl
));
4369 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
4370 access_ctrl_req
= &cmd
->data
.setadapterparms
.data
.set_access_ctrl
;
4371 access_ctrl_req
->subcmd_code
= isolation
;
4373 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_setadpparms_set_access_ctrl_cb
,
4375 QETH_DBF_TEXT_(SETUP
, 2, "rc=%d", rc
);
4379 int qeth_set_access_ctrl_online(struct qeth_card
*card
, int fallback
)
4383 QETH_CARD_TEXT(card
, 4, "setactlo");
4385 if ((card
->info
.type
== QETH_CARD_TYPE_OSD
||
4386 card
->info
.type
== QETH_CARD_TYPE_OSX
) &&
4387 qeth_adp_supported(card
, IPA_SETADP_SET_ACCESS_CONTROL
)) {
4388 rc
= qeth_setadpparms_set_access_ctrl(card
,
4389 card
->options
.isolation
, fallback
);
4392 "IPA(SET_ACCESS_CTRL,%s,%d) sent failed\n",
4393 card
->gdev
->dev
.kobj
.name
,
4397 } else if (card
->options
.isolation
!= ISOLATION_MODE_NONE
) {
4398 card
->options
.isolation
= ISOLATION_MODE_NONE
;
4400 dev_err(&card
->gdev
->dev
, "Adapter does not "
4401 "support QDIO data connection isolation\n");
4406 EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online
);
4408 void qeth_tx_timeout(struct net_device
*dev
)
4410 struct qeth_card
*card
;
4412 card
= dev
->ml_priv
;
4413 QETH_CARD_TEXT(card
, 4, "txtimeo");
4414 card
->stats
.tx_errors
++;
4415 qeth_schedule_recovery(card
);
4417 EXPORT_SYMBOL_GPL(qeth_tx_timeout
);
4419 static int qeth_mdio_read(struct net_device
*dev
, int phy_id
, int regnum
)
4421 struct qeth_card
*card
= dev
->ml_priv
;
4425 case MII_BMCR
: /* Basic mode control register */
4427 if ((card
->info
.link_type
!= QETH_LINK_TYPE_GBIT_ETH
) &&
4428 (card
->info
.link_type
!= QETH_LINK_TYPE_OSN
) &&
4429 (card
->info
.link_type
!= QETH_LINK_TYPE_10GBIT_ETH
))
4430 rc
|= BMCR_SPEED100
;
4432 case MII_BMSR
: /* Basic mode status register */
4433 rc
= BMSR_ERCAP
| BMSR_ANEGCOMPLETE
| BMSR_LSTATUS
|
4434 BMSR_10HALF
| BMSR_10FULL
| BMSR_100HALF
| BMSR_100FULL
|
4437 case MII_PHYSID1
: /* PHYS ID 1 */
4438 rc
= (dev
->dev_addr
[0] << 16) | (dev
->dev_addr
[1] << 8) |
4440 rc
= (rc
>> 5) & 0xFFFF;
4442 case MII_PHYSID2
: /* PHYS ID 2 */
4443 rc
= (dev
->dev_addr
[2] << 10) & 0xFFFF;
4445 case MII_ADVERTISE
: /* Advertisement control reg */
4448 case MII_LPA
: /* Link partner ability reg */
4449 rc
= LPA_10HALF
| LPA_10FULL
| LPA_100HALF
| LPA_100FULL
|
4450 LPA_100BASE4
| LPA_LPACK
;
4452 case MII_EXPANSION
: /* Expansion register */
4454 case MII_DCOUNTER
: /* disconnect counter */
4456 case MII_FCSCOUNTER
: /* false carrier counter */
4458 case MII_NWAYTEST
: /* N-way auto-neg test register */
4460 case MII_RERRCOUNTER
: /* rx error counter */
4461 rc
= card
->stats
.rx_errors
;
4463 case MII_SREVISION
: /* silicon revision */
4465 case MII_RESV1
: /* reserved 1 */
4467 case MII_LBRERROR
: /* loopback, rx, bypass error */
4469 case MII_PHYADDR
: /* physical address */
4471 case MII_RESV2
: /* reserved 2 */
4473 case MII_TPISTATUS
: /* TPI status for 10mbps */
4475 case MII_NCONFIG
: /* network interface config */
4483 static int qeth_send_ipa_snmp_cmd(struct qeth_card
*card
,
4484 struct qeth_cmd_buffer
*iob
, int len
,
4485 int (*reply_cb
)(struct qeth_card
*, struct qeth_reply
*,
4491 QETH_CARD_TEXT(card
, 4, "sendsnmp");
4493 memcpy(iob
->data
, IPA_PDU_HEADER
, IPA_PDU_HEADER_SIZE
);
4494 memcpy(QETH_IPA_CMD_DEST_ADDR(iob
->data
),
4495 &card
->token
.ulp_connection_r
, QETH_MPC_TOKEN_LENGTH
);
4496 /* adjust PDU length fields in IPA_PDU_HEADER */
4497 s1
= (u32
) IPA_PDU_HEADER_SIZE
+ len
;
4499 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob
->data
), &s1
, 2);
4500 memcpy(QETH_IPA_PDU_LEN_PDU1(iob
->data
), &s2
, 2);
4501 memcpy(QETH_IPA_PDU_LEN_PDU2(iob
->data
), &s2
, 2);
4502 memcpy(QETH_IPA_PDU_LEN_PDU3(iob
->data
), &s2
, 2);
4503 return qeth_send_control_data(card
, IPA_PDU_HEADER_SIZE
+ len
, iob
,
4504 reply_cb
, reply_param
);
4507 static int qeth_snmp_command_cb(struct qeth_card
*card
,
4508 struct qeth_reply
*reply
, unsigned long sdata
)
4510 struct qeth_ipa_cmd
*cmd
;
4511 struct qeth_arp_query_info
*qinfo
;
4512 struct qeth_snmp_cmd
*snmp
;
4513 unsigned char *data
;
4516 QETH_CARD_TEXT(card
, 3, "snpcmdcb");
4518 cmd
= (struct qeth_ipa_cmd
*) sdata
;
4519 data
= (unsigned char *)((char *)cmd
- reply
->offset
);
4520 qinfo
= (struct qeth_arp_query_info
*) reply
->param
;
4521 snmp
= &cmd
->data
.setadapterparms
.data
.snmp
;
4523 if (cmd
->hdr
.return_code
) {
4524 QETH_CARD_TEXT_(card
, 4, "scer1%x", cmd
->hdr
.return_code
);
4527 if (cmd
->data
.setadapterparms
.hdr
.return_code
) {
4528 cmd
->hdr
.return_code
=
4529 cmd
->data
.setadapterparms
.hdr
.return_code
;
4530 QETH_CARD_TEXT_(card
, 4, "scer2%x", cmd
->hdr
.return_code
);
4533 data_len
= *((__u16
*)QETH_IPA_PDU_LEN_PDU1(data
));
4534 if (cmd
->data
.setadapterparms
.hdr
.seq_no
== 1)
4535 data_len
-= (__u16
)((char *)&snmp
->data
- (char *)cmd
);
4537 data_len
-= (__u16
)((char *)&snmp
->request
- (char *)cmd
);
4539 /* check if there is enough room in userspace */
4540 if ((qinfo
->udata_len
- qinfo
->udata_offset
) < data_len
) {
4541 QETH_CARD_TEXT_(card
, 4, "scer3%i", -ENOMEM
);
4542 cmd
->hdr
.return_code
= IPA_RC_ENOMEM
;
4545 QETH_CARD_TEXT_(card
, 4, "snore%i",
4546 cmd
->data
.setadapterparms
.hdr
.used_total
);
4547 QETH_CARD_TEXT_(card
, 4, "sseqn%i",
4548 cmd
->data
.setadapterparms
.hdr
.seq_no
);
4549 /*copy entries to user buffer*/
4550 if (cmd
->data
.setadapterparms
.hdr
.seq_no
== 1) {
4551 memcpy(qinfo
->udata
+ qinfo
->udata_offset
,
4553 data_len
+ offsetof(struct qeth_snmp_cmd
, data
));
4554 qinfo
->udata_offset
+= offsetof(struct qeth_snmp_cmd
, data
);
4556 memcpy(qinfo
->udata
+ qinfo
->udata_offset
,
4557 (char *)&snmp
->request
, data_len
);
4559 qinfo
->udata_offset
+= data_len
;
4560 /* check if all replies received ... */
4561 QETH_CARD_TEXT_(card
, 4, "srtot%i",
4562 cmd
->data
.setadapterparms
.hdr
.used_total
);
4563 QETH_CARD_TEXT_(card
, 4, "srseq%i",
4564 cmd
->data
.setadapterparms
.hdr
.seq_no
);
4565 if (cmd
->data
.setadapterparms
.hdr
.seq_no
<
4566 cmd
->data
.setadapterparms
.hdr
.used_total
)
4571 static int qeth_snmp_command(struct qeth_card
*card
, char __user
*udata
)
4573 struct qeth_cmd_buffer
*iob
;
4574 struct qeth_ipa_cmd
*cmd
;
4575 struct qeth_snmp_ureq
*ureq
;
4576 unsigned int req_len
;
4577 struct qeth_arp_query_info qinfo
= {0, };
4580 QETH_CARD_TEXT(card
, 3, "snmpcmd");
4582 if (card
->info
.guestlan
)
4585 if ((!qeth_adp_supported(card
, IPA_SETADP_SET_SNMP_CONTROL
)) &&
4586 (!card
->options
.layer2
)) {
4589 /* skip 4 bytes (data_len struct member) to get req_len */
4590 if (copy_from_user(&req_len
, udata
+ sizeof(int), sizeof(int)))
4592 if (req_len
> (QETH_BUFSIZE
- IPA_PDU_HEADER_SIZE
-
4593 sizeof(struct qeth_ipacmd_hdr
) -
4594 sizeof(struct qeth_ipacmd_setadpparms_hdr
)))
4596 ureq
= memdup_user(udata
, req_len
+ sizeof(struct qeth_snmp_ureq_hdr
));
4598 QETH_CARD_TEXT(card
, 2, "snmpnome");
4599 return PTR_ERR(ureq
);
4601 qinfo
.udata_len
= ureq
->hdr
.data_len
;
4602 qinfo
.udata
= kzalloc(qinfo
.udata_len
, GFP_KERNEL
);
4607 qinfo
.udata_offset
= sizeof(struct qeth_snmp_ureq_hdr
);
4609 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_SET_SNMP_CONTROL
,
4610 QETH_SNMP_SETADP_CMDLENGTH
+ req_len
);
4615 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
4616 memcpy(&cmd
->data
.setadapterparms
.data
.snmp
, &ureq
->cmd
, req_len
);
4617 rc
= qeth_send_ipa_snmp_cmd(card
, iob
, QETH_SETADP_BASE_LEN
+ req_len
,
4618 qeth_snmp_command_cb
, (void *)&qinfo
);
4620 QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n",
4621 QETH_CARD_IFNAME(card
), rc
);
4623 if (copy_to_user(udata
, qinfo
.udata
, qinfo
.udata_len
))
4632 static int qeth_setadpparms_query_oat_cb(struct qeth_card
*card
,
4633 struct qeth_reply
*reply
, unsigned long data
)
4635 struct qeth_ipa_cmd
*cmd
;
4636 struct qeth_qoat_priv
*priv
;
4640 QETH_CARD_TEXT(card
, 3, "qoatcb");
4642 cmd
= (struct qeth_ipa_cmd
*)data
;
4643 priv
= (struct qeth_qoat_priv
*)reply
->param
;
4644 resdatalen
= cmd
->data
.setadapterparms
.hdr
.cmdlength
;
4645 resdata
= (char *)data
+ 28;
4647 if (resdatalen
> (priv
->buffer_len
- priv
->response_len
)) {
4648 cmd
->hdr
.return_code
= IPA_RC_FFFF
;
4652 memcpy((priv
->buffer
+ priv
->response_len
), resdata
,
4654 priv
->response_len
+= resdatalen
;
4656 if (cmd
->data
.setadapterparms
.hdr
.seq_no
<
4657 cmd
->data
.setadapterparms
.hdr
.used_total
)
4662 static int qeth_query_oat_command(struct qeth_card
*card
, char __user
*udata
)
4665 struct qeth_cmd_buffer
*iob
;
4666 struct qeth_ipa_cmd
*cmd
;
4667 struct qeth_query_oat
*oat_req
;
4668 struct qeth_query_oat_data oat_data
;
4669 struct qeth_qoat_priv priv
;
4672 QETH_CARD_TEXT(card
, 3, "qoatcmd");
4674 if (!qeth_adp_supported(card
, IPA_SETADP_QUERY_OAT
)) {
4679 if (copy_from_user(&oat_data
, udata
,
4680 sizeof(struct qeth_query_oat_data
))) {
4685 priv
.buffer_len
= oat_data
.buffer_len
;
4686 priv
.response_len
= 0;
4687 priv
.buffer
= kzalloc(oat_data
.buffer_len
, GFP_KERNEL
);
4693 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_QUERY_OAT
,
4694 sizeof(struct qeth_ipacmd_setadpparms_hdr
) +
4695 sizeof(struct qeth_query_oat
));
4700 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
4701 oat_req
= &cmd
->data
.setadapterparms
.data
.query_oat
;
4702 oat_req
->subcmd_code
= oat_data
.command
;
4704 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_setadpparms_query_oat_cb
,
4707 if (is_compat_task())
4708 tmp
= compat_ptr(oat_data
.ptr
);
4710 tmp
= (void __user
*)(unsigned long)oat_data
.ptr
;
4712 if (copy_to_user(tmp
, priv
.buffer
,
4713 priv
.response_len
)) {
4718 oat_data
.response_len
= priv
.response_len
;
4720 if (copy_to_user(udata
, &oat_data
,
4721 sizeof(struct qeth_query_oat_data
)))
4724 if (rc
== IPA_RC_FFFF
)
4733 static int qeth_query_card_info_cb(struct qeth_card
*card
,
4734 struct qeth_reply
*reply
, unsigned long data
)
4736 struct qeth_ipa_cmd
*cmd
;
4737 struct qeth_query_card_info
*card_info
;
4738 struct carrier_info
*carrier_info
;
4740 QETH_CARD_TEXT(card
, 2, "qcrdincb");
4741 carrier_info
= (struct carrier_info
*)reply
->param
;
4742 cmd
= (struct qeth_ipa_cmd
*)data
;
4743 card_info
= &cmd
->data
.setadapterparms
.data
.card_info
;
4744 if (cmd
->data
.setadapterparms
.hdr
.return_code
== 0) {
4745 carrier_info
->card_type
= card_info
->card_type
;
4746 carrier_info
->port_mode
= card_info
->port_mode
;
4747 carrier_info
->port_speed
= card_info
->port_speed
;
4750 qeth_default_setadapterparms_cb(card
, reply
, (unsigned long) cmd
);
4754 static int qeth_query_card_info(struct qeth_card
*card
,
4755 struct carrier_info
*carrier_info
)
4757 struct qeth_cmd_buffer
*iob
;
4759 QETH_CARD_TEXT(card
, 2, "qcrdinfo");
4760 if (!qeth_adp_supported(card
, IPA_SETADP_QUERY_CARD_INFO
))
4762 iob
= qeth_get_adapter_cmd(card
, IPA_SETADP_QUERY_CARD_INFO
,
4763 sizeof(struct qeth_ipacmd_setadpparms_hdr
));
4766 return qeth_send_ipa_cmd(card
, iob
, qeth_query_card_info_cb
,
4767 (void *)carrier_info
);
4770 static inline int qeth_get_qdio_q_format(struct qeth_card
*card
)
4772 if (card
->info
.type
== QETH_CARD_TYPE_IQD
)
4773 return QDIO_IQDIO_QFMT
;
4775 return QDIO_QETH_QFMT
;
4778 static void qeth_determine_capabilities(struct qeth_card
*card
)
4783 struct ccw_device
*ddev
;
4784 int ddev_offline
= 0;
4786 QETH_DBF_TEXT(SETUP
, 2, "detcapab");
4787 ddev
= CARD_DDEV(card
);
4788 if (!ddev
->online
) {
4790 rc
= ccw_device_set_online(ddev
);
4792 QETH_DBF_TEXT_(SETUP
, 2, "3err%d", rc
);
4797 rc
= qeth_read_conf_data(card
, (void **) &prcd
, &length
);
4799 QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n",
4800 dev_name(&card
->gdev
->dev
), rc
);
4801 QETH_DBF_TEXT_(SETUP
, 2, "5err%d", rc
);
4804 qeth_configure_unitaddr(card
, prcd
);
4806 qeth_configure_blkt_default(card
, prcd
);
4809 rc
= qdio_get_ssqd_desc(ddev
, &card
->ssqd
);
4811 QETH_DBF_TEXT_(SETUP
, 2, "6err%d", rc
);
4813 QETH_DBF_TEXT_(SETUP
, 2, "qfmt%d", card
->ssqd
.qfmt
);
4814 QETH_DBF_TEXT_(SETUP
, 2, "ac1:%02x", card
->ssqd
.qdioac1
);
4815 QETH_DBF_TEXT_(SETUP
, 2, "ac2:%04x", card
->ssqd
.qdioac2
);
4816 QETH_DBF_TEXT_(SETUP
, 2, "ac3:%04x", card
->ssqd
.qdioac3
);
4817 QETH_DBF_TEXT_(SETUP
, 2, "icnt%d", card
->ssqd
.icnt
);
4818 if (!((card
->ssqd
.qfmt
!= QDIO_IQDIO_QFMT
) ||
4819 ((card
->ssqd
.qdioac1
& CHSC_AC1_INITIATE_INPUTQ
) == 0) ||
4820 ((card
->ssqd
.qdioac3
& CHSC_AC3_FORMAT2_CQ_AVAILABLE
) == 0))) {
4821 dev_info(&card
->gdev
->dev
,
4822 "Completion Queueing supported\n");
4824 card
->options
.cq
= QETH_CQ_NOTAVAILABLE
;
4829 if (ddev_offline
== 1)
4830 ccw_device_set_offline(ddev
);
4835 static inline void qeth_qdio_establish_cq(struct qeth_card
*card
,
4836 struct qdio_buffer
**in_sbal_ptrs
,
4837 void (**queue_start_poll
) (struct ccw_device
*, int, unsigned long)) {
4840 if (card
->options
.cq
== QETH_CQ_ENABLED
) {
4841 int offset
= QDIO_MAX_BUFFERS_PER_Q
*
4842 (card
->qdio
.no_in_queues
- 1);
4843 i
= QDIO_MAX_BUFFERS_PER_Q
* (card
->qdio
.no_in_queues
- 1);
4844 for (i
= 0; i
< QDIO_MAX_BUFFERS_PER_Q
; ++i
) {
4845 in_sbal_ptrs
[offset
+ i
] = (struct qdio_buffer
*)
4846 virt_to_phys(card
->qdio
.c_q
->bufs
[i
].buffer
);
4849 queue_start_poll
[card
->qdio
.no_in_queues
- 1] = NULL
;
4853 static int qeth_qdio_establish(struct qeth_card
*card
)
4855 struct qdio_initialize init_data
;
4856 char *qib_param_field
;
4857 struct qdio_buffer
**in_sbal_ptrs
;
4858 void (**queue_start_poll
) (struct ccw_device
*, int, unsigned long);
4859 struct qdio_buffer
**out_sbal_ptrs
;
4863 QETH_DBF_TEXT(SETUP
, 2, "qdioest");
4865 qib_param_field
= kzalloc(QDIO_MAX_BUFFERS_PER_Q
* sizeof(char),
4867 if (!qib_param_field
) {
4869 goto out_free_nothing
;
4872 qeth_create_qib_param_field(card
, qib_param_field
);
4873 qeth_create_qib_param_field_blkt(card
, qib_param_field
);
4875 in_sbal_ptrs
= kzalloc(card
->qdio
.no_in_queues
*
4876 QDIO_MAX_BUFFERS_PER_Q
* sizeof(void *),
4878 if (!in_sbal_ptrs
) {
4880 goto out_free_qib_param
;
4882 for (i
= 0; i
< QDIO_MAX_BUFFERS_PER_Q
; ++i
) {
4883 in_sbal_ptrs
[i
] = (struct qdio_buffer
*)
4884 virt_to_phys(card
->qdio
.in_q
->bufs
[i
].buffer
);
4887 queue_start_poll
= kzalloc(sizeof(void *) * card
->qdio
.no_in_queues
,
4889 if (!queue_start_poll
) {
4891 goto out_free_in_sbals
;
4893 for (i
= 0; i
< card
->qdio
.no_in_queues
; ++i
)
4894 queue_start_poll
[i
] = card
->discipline
->start_poll
;
4896 qeth_qdio_establish_cq(card
, in_sbal_ptrs
, queue_start_poll
);
4899 kzalloc(card
->qdio
.no_out_queues
* QDIO_MAX_BUFFERS_PER_Q
*
4900 sizeof(void *), GFP_KERNEL
);
4901 if (!out_sbal_ptrs
) {
4903 goto out_free_queue_start_poll
;
4905 for (i
= 0, k
= 0; i
< card
->qdio
.no_out_queues
; ++i
)
4906 for (j
= 0; j
< QDIO_MAX_BUFFERS_PER_Q
; ++j
, ++k
) {
4907 out_sbal_ptrs
[k
] = (struct qdio_buffer
*)virt_to_phys(
4908 card
->qdio
.out_qs
[i
]->bufs
[j
]->buffer
);
4911 memset(&init_data
, 0, sizeof(struct qdio_initialize
));
4912 init_data
.cdev
= CARD_DDEV(card
);
4913 init_data
.q_format
= qeth_get_qdio_q_format(card
);
4914 init_data
.qib_param_field_format
= 0;
4915 init_data
.qib_param_field
= qib_param_field
;
4916 init_data
.no_input_qs
= card
->qdio
.no_in_queues
;
4917 init_data
.no_output_qs
= card
->qdio
.no_out_queues
;
4918 init_data
.input_handler
= card
->discipline
->input_handler
;
4919 init_data
.output_handler
= card
->discipline
->output_handler
;
4920 init_data
.queue_start_poll_array
= queue_start_poll
;
4921 init_data
.int_parm
= (unsigned long) card
;
4922 init_data
.input_sbal_addr_array
= (void **) in_sbal_ptrs
;
4923 init_data
.output_sbal_addr_array
= (void **) out_sbal_ptrs
;
4924 init_data
.output_sbal_state_array
= card
->qdio
.out_bufstates
;
4925 init_data
.scan_threshold
=
4926 (card
->info
.type
== QETH_CARD_TYPE_IQD
) ? 1 : 32;
4928 if (atomic_cmpxchg(&card
->qdio
.state
, QETH_QDIO_ALLOCATED
,
4929 QETH_QDIO_ESTABLISHED
) == QETH_QDIO_ALLOCATED
) {
4930 rc
= qdio_allocate(&init_data
);
4932 atomic_set(&card
->qdio
.state
, QETH_QDIO_ALLOCATED
);
4935 rc
= qdio_establish(&init_data
);
4937 atomic_set(&card
->qdio
.state
, QETH_QDIO_ALLOCATED
);
4938 qdio_free(CARD_DDEV(card
));
4942 switch (card
->options
.cq
) {
4943 case QETH_CQ_ENABLED
:
4944 dev_info(&card
->gdev
->dev
, "Completion Queue support enabled");
4946 case QETH_CQ_DISABLED
:
4947 dev_info(&card
->gdev
->dev
, "Completion Queue support disabled");
4953 kfree(out_sbal_ptrs
);
4954 out_free_queue_start_poll
:
4955 kfree(queue_start_poll
);
4957 kfree(in_sbal_ptrs
);
4959 kfree(qib_param_field
);
4964 static void qeth_core_free_card(struct qeth_card
*card
)
4967 QETH_DBF_TEXT(SETUP
, 2, "freecrd");
4968 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
4969 qeth_clean_channel(&card
->read
);
4970 qeth_clean_channel(&card
->write
);
4972 free_netdev(card
->dev
);
4973 qeth_free_qdio_buffers(card
);
4974 unregister_service_level(&card
->qeth_service_level
);
4978 void qeth_trace_features(struct qeth_card
*card
)
4980 QETH_CARD_TEXT(card
, 2, "features");
4981 QETH_CARD_HEX(card
, 2, &card
->options
.ipa4
, sizeof(card
->options
.ipa4
));
4982 QETH_CARD_HEX(card
, 2, &card
->options
.ipa6
, sizeof(card
->options
.ipa6
));
4983 QETH_CARD_HEX(card
, 2, &card
->options
.adp
, sizeof(card
->options
.adp
));
4984 QETH_CARD_HEX(card
, 2, &card
->info
.diagass_support
,
4985 sizeof(card
->info
.diagass_support
));
4987 EXPORT_SYMBOL_GPL(qeth_trace_features
);
4989 static struct ccw_device_id qeth_ids
[] = {
4990 {CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01),
4991 .driver_info
= QETH_CARD_TYPE_OSD
},
4992 {CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05),
4993 .driver_info
= QETH_CARD_TYPE_IQD
},
4994 {CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06),
4995 .driver_info
= QETH_CARD_TYPE_OSN
},
4996 {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03),
4997 .driver_info
= QETH_CARD_TYPE_OSM
},
4998 {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02),
4999 .driver_info
= QETH_CARD_TYPE_OSX
},
5002 MODULE_DEVICE_TABLE(ccw
, qeth_ids
);
5004 static struct ccw_driver qeth_ccw_driver
= {
5006 .owner
= THIS_MODULE
,
5010 .probe
= ccwgroup_probe_ccwdev
,
5011 .remove
= ccwgroup_remove_ccwdev
,
5014 int qeth_core_hardsetup_card(struct qeth_card
*card
)
5019 QETH_DBF_TEXT(SETUP
, 2, "hrdsetup");
5020 atomic_set(&card
->force_alloc_skb
, 0);
5021 qeth_update_from_chp_desc(card
);
5024 QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n",
5025 dev_name(&card
->gdev
->dev
));
5026 rc
= qeth_qdio_clear_card(card
, card
->info
.type
!= QETH_CARD_TYPE_IQD
);
5027 ccw_device_set_offline(CARD_DDEV(card
));
5028 ccw_device_set_offline(CARD_WDEV(card
));
5029 ccw_device_set_offline(CARD_RDEV(card
));
5030 qdio_free(CARD_DDEV(card
));
5031 rc
= ccw_device_set_online(CARD_RDEV(card
));
5034 rc
= ccw_device_set_online(CARD_WDEV(card
));
5037 rc
= ccw_device_set_online(CARD_DDEV(card
));
5041 if (rc
== -ERESTARTSYS
) {
5042 QETH_DBF_TEXT(SETUP
, 2, "break1");
5045 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
5051 qeth_determine_capabilities(card
);
5052 qeth_init_tokens(card
);
5053 qeth_init_func_level(card
);
5054 rc
= qeth_idx_activate_channel(&card
->read
, qeth_idx_read_cb
);
5055 if (rc
== -ERESTARTSYS
) {
5056 QETH_DBF_TEXT(SETUP
, 2, "break2");
5059 QETH_DBF_TEXT_(SETUP
, 2, "3err%d", rc
);
5065 rc
= qeth_idx_activate_channel(&card
->write
, qeth_idx_write_cb
);
5066 if (rc
== -ERESTARTSYS
) {
5067 QETH_DBF_TEXT(SETUP
, 2, "break3");
5070 QETH_DBF_TEXT_(SETUP
, 2, "4err%d", rc
);
5076 card
->read_or_write_problem
= 0;
5077 rc
= qeth_mpc_initialize(card
);
5079 QETH_DBF_TEXT_(SETUP
, 2, "5err%d", rc
);
5083 rc
= qeth_send_startlan(card
);
5085 QETH_DBF_TEXT_(SETUP
, 2, "6err%d", rc
);
5086 if (rc
== IPA_RC_LAN_OFFLINE
) {
5087 dev_warn(&card
->gdev
->dev
,
5088 "The LAN is offline\n");
5089 card
->lan_online
= 0;
5095 card
->lan_online
= 1;
5097 card
->options
.ipa4
.supported_funcs
= 0;
5098 card
->options
.ipa6
.supported_funcs
= 0;
5099 card
->options
.adp
.supported_funcs
= 0;
5100 card
->options
.sbp
.supported_funcs
= 0;
5101 card
->info
.diagass_support
= 0;
5102 rc
= qeth_query_ipassists(card
, QETH_PROT_IPV4
);
5105 if (qeth_is_supported(card
, IPA_SETADAPTERPARMS
)) {
5106 rc
= qeth_query_setadapterparms(card
);
5108 QETH_DBF_TEXT_(SETUP
, 2, "7err%d", rc
);
5112 if (qeth_adp_supported(card
, IPA_SETADP_SET_DIAG_ASSIST
)) {
5113 rc
= qeth_query_setdiagass(card
);
5115 QETH_DBF_TEXT_(SETUP
, 2, "8err%d", rc
);
5121 dev_warn(&card
->gdev
->dev
, "The qeth device driver failed to recover "
5122 "an error on the device\n");
5123 QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n",
5124 dev_name(&card
->gdev
->dev
), rc
);
5127 EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card
);
5129 static inline int qeth_create_skb_frag(struct qeth_qdio_buffer
*qethbuffer
,
5130 struct qdio_buffer_element
*element
,
5131 struct sk_buff
**pskb
, int offset
, int *pfrag
, int data_len
)
5133 struct page
*page
= virt_to_page(element
->addr
);
5134 if (*pskb
== NULL
) {
5135 if (qethbuffer
->rx_skb
) {
5136 /* only if qeth_card.options.cq == QETH_CQ_ENABLED */
5137 *pskb
= qethbuffer
->rx_skb
;
5138 qethbuffer
->rx_skb
= NULL
;
5140 *pskb
= dev_alloc_skb(QETH_RX_PULL_LEN
+ ETH_HLEN
);
5145 skb_reserve(*pskb
, ETH_HLEN
);
5146 if (data_len
<= QETH_RX_PULL_LEN
) {
5147 memcpy(skb_put(*pskb
, data_len
), element
->addr
+ offset
,
5151 memcpy(skb_put(*pskb
, QETH_RX_PULL_LEN
),
5152 element
->addr
+ offset
, QETH_RX_PULL_LEN
);
5153 skb_fill_page_desc(*pskb
, *pfrag
, page
,
5154 offset
+ QETH_RX_PULL_LEN
,
5155 data_len
- QETH_RX_PULL_LEN
);
5156 (*pskb
)->data_len
+= data_len
- QETH_RX_PULL_LEN
;
5157 (*pskb
)->len
+= data_len
- QETH_RX_PULL_LEN
;
5158 (*pskb
)->truesize
+= data_len
- QETH_RX_PULL_LEN
;
5163 skb_fill_page_desc(*pskb
, *pfrag
, page
, offset
, data_len
);
5164 (*pskb
)->data_len
+= data_len
;
5165 (*pskb
)->len
+= data_len
;
5166 (*pskb
)->truesize
+= data_len
;
5174 static inline int qeth_is_last_sbale(struct qdio_buffer_element
*sbale
)
5176 return (sbale
->eflags
& SBAL_EFLAGS_LAST_ENTRY
);
5179 struct sk_buff
*qeth_core_get_next_skb(struct qeth_card
*card
,
5180 struct qeth_qdio_buffer
*qethbuffer
,
5181 struct qdio_buffer_element
**__element
, int *__offset
,
5182 struct qeth_hdr
**hdr
)
5184 struct qdio_buffer_element
*element
= *__element
;
5185 struct qdio_buffer
*buffer
= qethbuffer
->buffer
;
5186 int offset
= *__offset
;
5187 struct sk_buff
*skb
= NULL
;
5195 /* qeth_hdr must not cross element boundaries */
5196 if (element
->length
< offset
+ sizeof(struct qeth_hdr
)) {
5197 if (qeth_is_last_sbale(element
))
5201 if (element
->length
< sizeof(struct qeth_hdr
))
5204 *hdr
= element
->addr
+ offset
;
5206 offset
+= sizeof(struct qeth_hdr
);
5207 switch ((*hdr
)->hdr
.l2
.id
) {
5208 case QETH_HEADER_TYPE_LAYER2
:
5209 skb_len
= (*hdr
)->hdr
.l2
.pkt_length
;
5211 case QETH_HEADER_TYPE_LAYER3
:
5212 skb_len
= (*hdr
)->hdr
.l3
.length
;
5213 headroom
= ETH_HLEN
;
5215 case QETH_HEADER_TYPE_OSN
:
5216 skb_len
= (*hdr
)->hdr
.osn
.pdu_length
;
5217 headroom
= sizeof(struct qeth_hdr
);
5226 if (((skb_len
>= card
->options
.rx_sg_cb
) &&
5227 (!(card
->info
.type
== QETH_CARD_TYPE_OSN
)) &&
5228 (!atomic_read(&card
->force_alloc_skb
))) ||
5229 (card
->options
.cq
== QETH_CQ_ENABLED
)) {
5232 skb
= dev_alloc_skb(skb_len
+ headroom
);
5236 skb_reserve(skb
, headroom
);
5239 data_ptr
= element
->addr
+ offset
;
5241 data_len
= min(skb_len
, (int)(element
->length
- offset
));
5244 if (qeth_create_skb_frag(qethbuffer
, element
,
5245 &skb
, offset
, &frag
, data_len
))
5248 memcpy(skb_put(skb
, data_len
), data_ptr
,
5252 skb_len
-= data_len
;
5254 if (qeth_is_last_sbale(element
)) {
5255 QETH_CARD_TEXT(card
, 4, "unexeob");
5256 QETH_CARD_HEX(card
, 2, buffer
, sizeof(void *));
5257 dev_kfree_skb_any(skb
);
5258 card
->stats
.rx_errors
++;
5263 data_ptr
= element
->addr
;
5268 *__element
= element
;
5270 if (use_rx_sg
&& card
->options
.performance_stats
) {
5271 card
->perf_stats
.sg_skbs_rx
++;
5272 card
->perf_stats
.sg_frags_rx
+= skb_shinfo(skb
)->nr_frags
;
5276 if (net_ratelimit()) {
5277 QETH_CARD_TEXT(card
, 2, "noskbmem");
5279 card
->stats
.rx_dropped
++;
5282 EXPORT_SYMBOL_GPL(qeth_core_get_next_skb
);
5284 int qeth_poll(struct napi_struct
*napi
, int budget
)
5286 struct qeth_card
*card
= container_of(napi
, struct qeth_card
, napi
);
5288 struct qeth_qdio_buffer
*buffer
;
5290 int new_budget
= budget
;
5292 if (card
->options
.performance_stats
) {
5293 card
->perf_stats
.inbound_cnt
++;
5294 card
->perf_stats
.inbound_start_time
= qeth_get_micros();
5298 if (!card
->rx
.b_count
) {
5299 card
->rx
.qdio_err
= 0;
5300 card
->rx
.b_count
= qdio_get_next_buffers(
5301 card
->data
.ccwdev
, 0, &card
->rx
.b_index
,
5302 &card
->rx
.qdio_err
);
5303 if (card
->rx
.b_count
<= 0) {
5304 card
->rx
.b_count
= 0;
5307 card
->rx
.b_element
=
5308 &card
->qdio
.in_q
->bufs
[card
->rx
.b_index
]
5309 .buffer
->element
[0];
5310 card
->rx
.e_offset
= 0;
5313 while (card
->rx
.b_count
) {
5314 buffer
= &card
->qdio
.in_q
->bufs
[card
->rx
.b_index
];
5315 if (!(card
->rx
.qdio_err
&&
5316 qeth_check_qdio_errors(card
, buffer
->buffer
,
5317 card
->rx
.qdio_err
, "qinerr")))
5319 card
->discipline
->process_rx_buffer(
5320 card
, new_budget
, &done
);
5325 if (card
->options
.performance_stats
)
5326 card
->perf_stats
.bufs_rec
++;
5327 qeth_put_buffer_pool_entry(card
,
5328 buffer
->pool_entry
);
5329 qeth_queue_input_buffer(card
, card
->rx
.b_index
);
5331 if (card
->rx
.b_count
) {
5333 (card
->rx
.b_index
+ 1) %
5334 QDIO_MAX_BUFFERS_PER_Q
;
5335 card
->rx
.b_element
=
5337 ->bufs
[card
->rx
.b_index
]
5338 .buffer
->element
[0];
5339 card
->rx
.e_offset
= 0;
5343 if (work_done
>= budget
)
5346 new_budget
= budget
- work_done
;
5350 napi_complete(napi
);
5351 if (qdio_start_irq(card
->data
.ccwdev
, 0))
5352 napi_schedule(&card
->napi
);
5354 if (card
->options
.performance_stats
)
5355 card
->perf_stats
.inbound_time
+= qeth_get_micros() -
5356 card
->perf_stats
.inbound_start_time
;
5359 EXPORT_SYMBOL_GPL(qeth_poll
);
5361 int qeth_setassparms_cb(struct qeth_card
*card
,
5362 struct qeth_reply
*reply
, unsigned long data
)
5364 struct qeth_ipa_cmd
*cmd
;
5366 QETH_CARD_TEXT(card
, 4, "defadpcb");
5368 cmd
= (struct qeth_ipa_cmd
*) data
;
5369 if (cmd
->hdr
.return_code
== 0) {
5370 cmd
->hdr
.return_code
= cmd
->data
.setassparms
.hdr
.return_code
;
5371 if (cmd
->hdr
.prot_version
== QETH_PROT_IPV4
)
5372 card
->options
.ipa4
.enabled_funcs
= cmd
->hdr
.ipa_enabled
;
5373 if (cmd
->hdr
.prot_version
== QETH_PROT_IPV6
)
5374 card
->options
.ipa6
.enabled_funcs
= cmd
->hdr
.ipa_enabled
;
5378 EXPORT_SYMBOL_GPL(qeth_setassparms_cb
);
5380 struct qeth_cmd_buffer
*qeth_get_setassparms_cmd(struct qeth_card
*card
,
5381 enum qeth_ipa_funcs ipa_func
,
5382 __u16 cmd_code
, __u16 len
,
5383 enum qeth_prot_versions prot
)
5385 struct qeth_cmd_buffer
*iob
;
5386 struct qeth_ipa_cmd
*cmd
;
5388 QETH_CARD_TEXT(card
, 4, "getasscm");
5389 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_SETASSPARMS
, prot
);
5392 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
5393 cmd
->data
.setassparms
.hdr
.assist_no
= ipa_func
;
5394 cmd
->data
.setassparms
.hdr
.length
= 8 + len
;
5395 cmd
->data
.setassparms
.hdr
.command_code
= cmd_code
;
5396 cmd
->data
.setassparms
.hdr
.return_code
= 0;
5397 cmd
->data
.setassparms
.hdr
.seq_no
= 0;
5402 EXPORT_SYMBOL_GPL(qeth_get_setassparms_cmd
);
5404 int qeth_send_setassparms(struct qeth_card
*card
,
5405 struct qeth_cmd_buffer
*iob
, __u16 len
, long data
,
5406 int (*reply_cb
)(struct qeth_card
*,
5407 struct qeth_reply
*, unsigned long),
5411 struct qeth_ipa_cmd
*cmd
;
5413 QETH_CARD_TEXT(card
, 4, "sendassp");
5415 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
5416 if (len
<= sizeof(__u32
))
5417 cmd
->data
.setassparms
.data
.flags_32bit
= (__u32
) data
;
5418 else /* (len > sizeof(__u32)) */
5419 memcpy(&cmd
->data
.setassparms
.data
, (void *) data
, len
);
5421 rc
= qeth_send_ipa_cmd(card
, iob
, reply_cb
, reply_param
);
5424 EXPORT_SYMBOL_GPL(qeth_send_setassparms
);
5426 int qeth_send_simple_setassparms(struct qeth_card
*card
,
5427 enum qeth_ipa_funcs ipa_func
,
5428 __u16 cmd_code
, long data
)
5432 struct qeth_cmd_buffer
*iob
;
5434 QETH_CARD_TEXT(card
, 4, "simassp4");
5436 length
= sizeof(__u32
);
5437 iob
= qeth_get_setassparms_cmd(card
, ipa_func
, cmd_code
,
5438 length
, QETH_PROT_IPV4
);
5441 rc
= qeth_send_setassparms(card
, iob
, length
, data
,
5442 qeth_setassparms_cb
, NULL
);
5445 EXPORT_SYMBOL_GPL(qeth_send_simple_setassparms
);
5447 static void qeth_unregister_dbf_views(void)
5450 for (x
= 0; x
< QETH_DBF_INFOS
; x
++) {
5451 debug_unregister(qeth_dbf
[x
].id
);
5452 qeth_dbf
[x
].id
= NULL
;
5456 void qeth_dbf_longtext(debug_info_t
*id
, int level
, char *fmt
, ...)
5458 char dbf_txt_buf
[32];
5461 if (!debug_level_enabled(id
, level
))
5463 va_start(args
, fmt
);
5464 vsnprintf(dbf_txt_buf
, sizeof(dbf_txt_buf
), fmt
, args
);
5466 debug_text_event(id
, level
, dbf_txt_buf
);
5468 EXPORT_SYMBOL_GPL(qeth_dbf_longtext
);
5470 static int qeth_register_dbf_views(void)
5475 for (x
= 0; x
< QETH_DBF_INFOS
; x
++) {
5476 /* register the areas */
5477 qeth_dbf
[x
].id
= debug_register(qeth_dbf
[x
].name
,
5481 if (qeth_dbf
[x
].id
== NULL
) {
5482 qeth_unregister_dbf_views();
5486 /* register a view */
5487 ret
= debug_register_view(qeth_dbf
[x
].id
, qeth_dbf
[x
].view
);
5489 qeth_unregister_dbf_views();
5493 /* set a passing level */
5494 debug_set_level(qeth_dbf
[x
].id
, qeth_dbf
[x
].level
);
5500 int qeth_core_load_discipline(struct qeth_card
*card
,
5501 enum qeth_discipline_id discipline
)
5504 mutex_lock(&qeth_mod_mutex
);
5505 switch (discipline
) {
5506 case QETH_DISCIPLINE_LAYER3
:
5507 card
->discipline
= try_then_request_module(
5508 symbol_get(qeth_l3_discipline
), "qeth_l3");
5510 case QETH_DISCIPLINE_LAYER2
:
5511 card
->discipline
= try_then_request_module(
5512 symbol_get(qeth_l2_discipline
), "qeth_l2");
5515 if (!card
->discipline
) {
5516 dev_err(&card
->gdev
->dev
, "There is no kernel module to "
5517 "support discipline %d\n", discipline
);
5520 mutex_unlock(&qeth_mod_mutex
);
5524 void qeth_core_free_discipline(struct qeth_card
*card
)
5526 if (card
->options
.layer2
)
5527 symbol_put(qeth_l2_discipline
);
5529 symbol_put(qeth_l3_discipline
);
5530 card
->discipline
= NULL
;
5533 static const struct device_type qeth_generic_devtype
= {
5534 .name
= "qeth_generic",
5535 .groups
= qeth_generic_attr_groups
,
5537 static const struct device_type qeth_osn_devtype
= {
5539 .groups
= qeth_osn_attr_groups
,
5542 #define DBF_NAME_LEN 20
5544 struct qeth_dbf_entry
{
5545 char dbf_name
[DBF_NAME_LEN
];
5546 debug_info_t
*dbf_info
;
5547 struct list_head dbf_list
;
5550 static LIST_HEAD(qeth_dbf_list
);
5551 static DEFINE_MUTEX(qeth_dbf_list_mutex
);
5553 static debug_info_t
*qeth_get_dbf_entry(char *name
)
5555 struct qeth_dbf_entry
*entry
;
5556 debug_info_t
*rc
= NULL
;
5558 mutex_lock(&qeth_dbf_list_mutex
);
5559 list_for_each_entry(entry
, &qeth_dbf_list
, dbf_list
) {
5560 if (strcmp(entry
->dbf_name
, name
) == 0) {
5561 rc
= entry
->dbf_info
;
5565 mutex_unlock(&qeth_dbf_list_mutex
);
5569 static int qeth_add_dbf_entry(struct qeth_card
*card
, char *name
)
5571 struct qeth_dbf_entry
*new_entry
;
5573 card
->debug
= debug_register(name
, 2, 1, 8);
5575 QETH_DBF_TEXT_(SETUP
, 2, "%s", "qcdbf");
5578 if (debug_register_view(card
->debug
, &debug_hex_ascii_view
))
5580 new_entry
= kzalloc(sizeof(struct qeth_dbf_entry
), GFP_KERNEL
);
5583 strncpy(new_entry
->dbf_name
, name
, DBF_NAME_LEN
);
5584 new_entry
->dbf_info
= card
->debug
;
5585 mutex_lock(&qeth_dbf_list_mutex
);
5586 list_add(&new_entry
->dbf_list
, &qeth_dbf_list
);
5587 mutex_unlock(&qeth_dbf_list_mutex
);
5592 debug_unregister(card
->debug
);
5597 static void qeth_clear_dbf_list(void)
5599 struct qeth_dbf_entry
*entry
, *tmp
;
5601 mutex_lock(&qeth_dbf_list_mutex
);
5602 list_for_each_entry_safe(entry
, tmp
, &qeth_dbf_list
, dbf_list
) {
5603 list_del(&entry
->dbf_list
);
5604 debug_unregister(entry
->dbf_info
);
5607 mutex_unlock(&qeth_dbf_list_mutex
);
5610 static int qeth_core_probe_device(struct ccwgroup_device
*gdev
)
5612 struct qeth_card
*card
;
5615 unsigned long flags
;
5616 char dbf_name
[DBF_NAME_LEN
];
5618 QETH_DBF_TEXT(SETUP
, 2, "probedev");
5621 if (!get_device(dev
))
5624 QETH_DBF_TEXT_(SETUP
, 2, "%s", dev_name(&gdev
->dev
));
5626 card
= qeth_alloc_card();
5628 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", -ENOMEM
);
5633 snprintf(dbf_name
, sizeof(dbf_name
), "qeth_card_%s",
5634 dev_name(&gdev
->dev
));
5635 card
->debug
= qeth_get_dbf_entry(dbf_name
);
5637 rc
= qeth_add_dbf_entry(card
, dbf_name
);
5642 card
->read
.ccwdev
= gdev
->cdev
[0];
5643 card
->write
.ccwdev
= gdev
->cdev
[1];
5644 card
->data
.ccwdev
= gdev
->cdev
[2];
5645 dev_set_drvdata(&gdev
->dev
, card
);
5647 gdev
->cdev
[0]->handler
= qeth_irq
;
5648 gdev
->cdev
[1]->handler
= qeth_irq
;
5649 gdev
->cdev
[2]->handler
= qeth_irq
;
5651 rc
= qeth_determine_card_type(card
);
5653 QETH_DBF_TEXT_(SETUP
, 2, "3err%d", rc
);
5656 rc
= qeth_setup_card(card
);
5658 QETH_DBF_TEXT_(SETUP
, 2, "2err%d", rc
);
5662 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
5663 gdev
->dev
.type
= &qeth_osn_devtype
;
5665 gdev
->dev
.type
= &qeth_generic_devtype
;
5667 switch (card
->info
.type
) {
5668 case QETH_CARD_TYPE_OSN
:
5669 case QETH_CARD_TYPE_OSM
:
5670 rc
= qeth_core_load_discipline(card
, QETH_DISCIPLINE_LAYER2
);
5673 rc
= card
->discipline
->setup(card
->gdev
);
5676 case QETH_CARD_TYPE_OSD
:
5677 case QETH_CARD_TYPE_OSX
:
5682 write_lock_irqsave(&qeth_core_card_list
.rwlock
, flags
);
5683 list_add_tail(&card
->list
, &qeth_core_card_list
.list
);
5684 write_unlock_irqrestore(&qeth_core_card_list
.rwlock
, flags
);
5686 qeth_determine_capabilities(card
);
5690 qeth_core_free_discipline(card
);
5692 qeth_core_free_card(card
);
5698 static void qeth_core_remove_device(struct ccwgroup_device
*gdev
)
5700 unsigned long flags
;
5701 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5703 QETH_DBF_TEXT(SETUP
, 2, "removedv");
5705 if (card
->discipline
) {
5706 card
->discipline
->remove(gdev
);
5707 qeth_core_free_discipline(card
);
5710 write_lock_irqsave(&qeth_core_card_list
.rwlock
, flags
);
5711 list_del(&card
->list
);
5712 write_unlock_irqrestore(&qeth_core_card_list
.rwlock
, flags
);
5713 qeth_core_free_card(card
);
5714 dev_set_drvdata(&gdev
->dev
, NULL
);
5715 put_device(&gdev
->dev
);
5719 static int qeth_core_set_online(struct ccwgroup_device
*gdev
)
5721 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5725 if (!card
->discipline
) {
5726 if (card
->info
.type
== QETH_CARD_TYPE_IQD
)
5727 def_discipline
= QETH_DISCIPLINE_LAYER3
;
5729 def_discipline
= QETH_DISCIPLINE_LAYER2
;
5730 rc
= qeth_core_load_discipline(card
, def_discipline
);
5733 rc
= card
->discipline
->setup(card
->gdev
);
5737 rc
= card
->discipline
->set_online(gdev
);
5742 static int qeth_core_set_offline(struct ccwgroup_device
*gdev
)
5744 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5745 return card
->discipline
->set_offline(gdev
);
5748 static void qeth_core_shutdown(struct ccwgroup_device
*gdev
)
5750 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5751 qeth_set_allowed_threads(card
, 0, 1);
5752 if ((gdev
->state
== CCWGROUP_ONLINE
) && card
->info
.hwtrap
)
5753 qeth_hw_trap(card
, QETH_DIAGS_TRAP_DISARM
);
5754 qeth_qdio_clear_card(card
, 0);
5755 qeth_clear_qdio_buffers(card
);
5756 qdio_free(CARD_DDEV(card
));
5759 static int qeth_core_freeze(struct ccwgroup_device
*gdev
)
5761 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5762 if (card
->discipline
&& card
->discipline
->freeze
)
5763 return card
->discipline
->freeze(gdev
);
5767 static int qeth_core_thaw(struct ccwgroup_device
*gdev
)
5769 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5770 if (card
->discipline
&& card
->discipline
->thaw
)
5771 return card
->discipline
->thaw(gdev
);
5775 static int qeth_core_restore(struct ccwgroup_device
*gdev
)
5777 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
5778 if (card
->discipline
&& card
->discipline
->restore
)
5779 return card
->discipline
->restore(gdev
);
5783 static struct ccwgroup_driver qeth_core_ccwgroup_driver
= {
5785 .owner
= THIS_MODULE
,
5788 .setup
= qeth_core_probe_device
,
5789 .remove
= qeth_core_remove_device
,
5790 .set_online
= qeth_core_set_online
,
5791 .set_offline
= qeth_core_set_offline
,
5792 .shutdown
= qeth_core_shutdown
,
5795 .freeze
= qeth_core_freeze
,
5796 .thaw
= qeth_core_thaw
,
5797 .restore
= qeth_core_restore
,
5800 static ssize_t
qeth_core_driver_group_store(struct device_driver
*ddrv
,
5801 const char *buf
, size_t count
)
5805 err
= ccwgroup_create_dev(qeth_core_root_dev
,
5806 &qeth_core_ccwgroup_driver
, 3, buf
);
5808 return err
? err
: count
;
5810 static DRIVER_ATTR(group
, 0200, NULL
, qeth_core_driver_group_store
);
5812 static struct attribute
*qeth_drv_attrs
[] = {
5813 &driver_attr_group
.attr
,
5816 static struct attribute_group qeth_drv_attr_group
= {
5817 .attrs
= qeth_drv_attrs
,
5819 static const struct attribute_group
*qeth_drv_attr_groups
[] = {
5820 &qeth_drv_attr_group
,
5824 int qeth_do_ioctl(struct net_device
*dev
, struct ifreq
*rq
, int cmd
)
5826 struct qeth_card
*card
= dev
->ml_priv
;
5827 struct mii_ioctl_data
*mii_data
;
5833 if (!qeth_card_hw_is_reachable(card
))
5836 if (card
->info
.type
== QETH_CARD_TYPE_OSN
)
5840 case SIOC_QETH_ADP_SET_SNMP_CONTROL
:
5841 rc
= qeth_snmp_command(card
, rq
->ifr_ifru
.ifru_data
);
5843 case SIOC_QETH_GET_CARD_TYPE
:
5844 if ((card
->info
.type
== QETH_CARD_TYPE_OSD
||
5845 card
->info
.type
== QETH_CARD_TYPE_OSM
||
5846 card
->info
.type
== QETH_CARD_TYPE_OSX
) &&
5847 !card
->info
.guestlan
)
5852 mii_data
= if_mii(rq
);
5853 mii_data
->phy_id
= 0;
5856 mii_data
= if_mii(rq
);
5857 if (mii_data
->phy_id
!= 0)
5860 mii_data
->val_out
= qeth_mdio_read(dev
,
5861 mii_data
->phy_id
, mii_data
->reg_num
);
5863 case SIOC_QETH_QUERY_OAT
:
5864 rc
= qeth_query_oat_command(card
, rq
->ifr_ifru
.ifru_data
);
5867 if (card
->discipline
->do_ioctl
)
5868 rc
= card
->discipline
->do_ioctl(dev
, rq
, cmd
);
5873 QETH_CARD_TEXT_(card
, 2, "ioce%x", rc
);
5876 EXPORT_SYMBOL_GPL(qeth_do_ioctl
);
5879 const char str
[ETH_GSTRING_LEN
];
5880 } qeth_ethtool_stats_keys
[] = {
5885 {"tx skbs no packing"},
5886 {"tx buffers no packing"},
5887 {"tx skbs packing"},
5888 {"tx buffers packing"},
5891 /* 10 */{"rx sg skbs"},
5893 {"rx sg page allocs"},
5894 {"tx large kbytes"},
5896 {"tx pk state ch n->p"},
5897 {"tx pk state ch p->n"},
5898 {"tx pk watermark low"},
5899 {"tx pk watermark high"},
5900 {"queue 0 buffer usage"},
5901 /* 20 */{"queue 1 buffer usage"},
5902 {"queue 2 buffer usage"},
5903 {"queue 3 buffer usage"},
5906 {"rx do_QDIO time"},
5907 {"rx do_QDIO count"},
5908 {"tx handler time"},
5909 {"tx handler count"},
5911 /* 30 */{"tx count"},
5912 {"tx do_QDIO time"},
5913 {"tx do_QDIO count"},
5917 {"cq handler count"},
5921 int qeth_core_get_sset_count(struct net_device
*dev
, int stringset
)
5923 switch (stringset
) {
5925 return (sizeof(qeth_ethtool_stats_keys
) / ETH_GSTRING_LEN
);
5930 EXPORT_SYMBOL_GPL(qeth_core_get_sset_count
);
5932 void qeth_core_get_ethtool_stats(struct net_device
*dev
,
5933 struct ethtool_stats
*stats
, u64
*data
)
5935 struct qeth_card
*card
= dev
->ml_priv
;
5936 data
[0] = card
->stats
.rx_packets
-
5937 card
->perf_stats
.initial_rx_packets
;
5938 data
[1] = card
->perf_stats
.bufs_rec
;
5939 data
[2] = card
->stats
.tx_packets
-
5940 card
->perf_stats
.initial_tx_packets
;
5941 data
[3] = card
->perf_stats
.bufs_sent
;
5942 data
[4] = card
->stats
.tx_packets
- card
->perf_stats
.initial_tx_packets
5943 - card
->perf_stats
.skbs_sent_pack
;
5944 data
[5] = card
->perf_stats
.bufs_sent
- card
->perf_stats
.bufs_sent_pack
;
5945 data
[6] = card
->perf_stats
.skbs_sent_pack
;
5946 data
[7] = card
->perf_stats
.bufs_sent_pack
;
5947 data
[8] = card
->perf_stats
.sg_skbs_sent
;
5948 data
[9] = card
->perf_stats
.sg_frags_sent
;
5949 data
[10] = card
->perf_stats
.sg_skbs_rx
;
5950 data
[11] = card
->perf_stats
.sg_frags_rx
;
5951 data
[12] = card
->perf_stats
.sg_alloc_page_rx
;
5952 data
[13] = (card
->perf_stats
.large_send_bytes
>> 10);
5953 data
[14] = card
->perf_stats
.large_send_cnt
;
5954 data
[15] = card
->perf_stats
.sc_dp_p
;
5955 data
[16] = card
->perf_stats
.sc_p_dp
;
5956 data
[17] = QETH_LOW_WATERMARK_PACK
;
5957 data
[18] = QETH_HIGH_WATERMARK_PACK
;
5958 data
[19] = atomic_read(&card
->qdio
.out_qs
[0]->used_buffers
);
5959 data
[20] = (card
->qdio
.no_out_queues
> 1) ?
5960 atomic_read(&card
->qdio
.out_qs
[1]->used_buffers
) : 0;
5961 data
[21] = (card
->qdio
.no_out_queues
> 2) ?
5962 atomic_read(&card
->qdio
.out_qs
[2]->used_buffers
) : 0;
5963 data
[22] = (card
->qdio
.no_out_queues
> 3) ?
5964 atomic_read(&card
->qdio
.out_qs
[3]->used_buffers
) : 0;
5965 data
[23] = card
->perf_stats
.inbound_time
;
5966 data
[24] = card
->perf_stats
.inbound_cnt
;
5967 data
[25] = card
->perf_stats
.inbound_do_qdio_time
;
5968 data
[26] = card
->perf_stats
.inbound_do_qdio_cnt
;
5969 data
[27] = card
->perf_stats
.outbound_handler_time
;
5970 data
[28] = card
->perf_stats
.outbound_handler_cnt
;
5971 data
[29] = card
->perf_stats
.outbound_time
;
5972 data
[30] = card
->perf_stats
.outbound_cnt
;
5973 data
[31] = card
->perf_stats
.outbound_do_qdio_time
;
5974 data
[32] = card
->perf_stats
.outbound_do_qdio_cnt
;
5975 data
[33] = card
->perf_stats
.tx_csum
;
5976 data
[34] = card
->perf_stats
.tx_lin
;
5977 data
[35] = card
->perf_stats
.tx_linfail
;
5978 data
[36] = card
->perf_stats
.cq_cnt
;
5979 data
[37] = card
->perf_stats
.cq_time
;
5981 EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats
);
5983 void qeth_core_get_strings(struct net_device
*dev
, u32 stringset
, u8
*data
)
5985 switch (stringset
) {
5987 memcpy(data
, &qeth_ethtool_stats_keys
,
5988 sizeof(qeth_ethtool_stats_keys
));
5995 EXPORT_SYMBOL_GPL(qeth_core_get_strings
);
5997 void qeth_core_get_drvinfo(struct net_device
*dev
,
5998 struct ethtool_drvinfo
*info
)
6000 struct qeth_card
*card
= dev
->ml_priv
;
6002 strlcpy(info
->driver
, card
->options
.layer2
? "qeth_l2" : "qeth_l3",
6003 sizeof(info
->driver
));
6004 strlcpy(info
->version
, "1.0", sizeof(info
->version
));
6005 strlcpy(info
->fw_version
, card
->info
.mcl_level
,
6006 sizeof(info
->fw_version
));
6007 snprintf(info
->bus_info
, sizeof(info
->bus_info
), "%s/%s/%s",
6008 CARD_RDEV_ID(card
), CARD_WDEV_ID(card
), CARD_DDEV_ID(card
));
6010 EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo
);
6012 /* Helper function to fill 'advertising' and 'supported' which are the same. */
6013 /* Autoneg and full-duplex are supported and advertised unconditionally. */
6014 /* Always advertise and support all speeds up to specified, and only one */
6015 /* specified port type. */
6016 static void qeth_set_cmd_adv_sup(struct ethtool_link_ksettings
*cmd
,
6017 int maxspeed
, int porttype
)
6019 ethtool_link_ksettings_zero_link_mode(cmd
, supported
);
6020 ethtool_link_ksettings_zero_link_mode(cmd
, advertising
);
6021 ethtool_link_ksettings_zero_link_mode(cmd
, lp_advertising
);
6023 ethtool_link_ksettings_add_link_mode(cmd
, supported
, Autoneg
);
6024 ethtool_link_ksettings_add_link_mode(cmd
, advertising
, Autoneg
);
6028 ethtool_link_ksettings_add_link_mode(cmd
, supported
, TP
);
6029 ethtool_link_ksettings_add_link_mode(cmd
, advertising
, TP
);
6032 ethtool_link_ksettings_add_link_mode(cmd
, supported
, FIBRE
);
6033 ethtool_link_ksettings_add_link_mode(cmd
, advertising
, FIBRE
);
6036 ethtool_link_ksettings_add_link_mode(cmd
, supported
, TP
);
6037 ethtool_link_ksettings_add_link_mode(cmd
, advertising
, TP
);
6041 /* fallthrough from high to low, to select all legal speeds: */
6044 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6046 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6049 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6051 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6053 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6055 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6058 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6060 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6062 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6064 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6067 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6069 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6071 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6073 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6075 /* end fallthrough */
6078 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6080 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6082 ethtool_link_ksettings_add_link_mode(cmd
, supported
,
6084 ethtool_link_ksettings_add_link_mode(cmd
, advertising
,
6090 int qeth_core_ethtool_get_link_ksettings(struct net_device
*netdev
,
6091 struct ethtool_link_ksettings
*cmd
)
6093 struct qeth_card
*card
= netdev
->ml_priv
;
6094 enum qeth_link_types link_type
;
6095 struct carrier_info carrier_info
;
6098 if ((card
->info
.type
== QETH_CARD_TYPE_IQD
) || (card
->info
.guestlan
))
6099 link_type
= QETH_LINK_TYPE_10GBIT_ETH
;
6101 link_type
= card
->info
.link_type
;
6103 cmd
->base
.duplex
= DUPLEX_FULL
;
6104 cmd
->base
.autoneg
= AUTONEG_ENABLE
;
6105 cmd
->base
.phy_address
= 0;
6106 cmd
->base
.mdio_support
= 0;
6107 cmd
->base
.eth_tp_mdix
= ETH_TP_MDI_INVALID
;
6108 cmd
->base
.eth_tp_mdix_ctrl
= ETH_TP_MDI_INVALID
;
6110 switch (link_type
) {
6111 case QETH_LINK_TYPE_FAST_ETH
:
6112 case QETH_LINK_TYPE_LANE_ETH100
:
6113 cmd
->base
.speed
= SPEED_100
;
6114 cmd
->base
.port
= PORT_TP
;
6116 case QETH_LINK_TYPE_GBIT_ETH
:
6117 case QETH_LINK_TYPE_LANE_ETH1000
:
6118 cmd
->base
.speed
= SPEED_1000
;
6119 cmd
->base
.port
= PORT_FIBRE
;
6121 case QETH_LINK_TYPE_10GBIT_ETH
:
6122 cmd
->base
.speed
= SPEED_10000
;
6123 cmd
->base
.port
= PORT_FIBRE
;
6126 cmd
->base
.speed
= SPEED_10
;
6127 cmd
->base
.port
= PORT_TP
;
6129 qeth_set_cmd_adv_sup(cmd
, cmd
->base
.speed
, cmd
->base
.port
);
6131 /* Check if we can obtain more accurate information. */
6132 /* If QUERY_CARD_INFO command is not supported or fails, */
6133 /* just return the heuristics that was filled above. */
6134 if (!qeth_card_hw_is_reachable(card
))
6136 rc
= qeth_query_card_info(card
, &carrier_info
);
6137 if (rc
== -EOPNOTSUPP
) /* for old hardware, return heuristic */
6139 if (rc
) /* report error from the hardware operation */
6141 /* on success, fill in the information got from the hardware */
6144 "card info: card_type=0x%02x, port_mode=0x%04x, port_speed=0x%08x\n",
6145 carrier_info
.card_type
,
6146 carrier_info
.port_mode
,
6147 carrier_info
.port_speed
);
6149 /* Update attributes for which we've obtained more authoritative */
6150 /* information, leave the rest the way they where filled above. */
6151 switch (carrier_info
.card_type
) {
6152 case CARD_INFO_TYPE_1G_COPPER_A
:
6153 case CARD_INFO_TYPE_1G_COPPER_B
:
6154 cmd
->base
.port
= PORT_TP
;
6155 qeth_set_cmd_adv_sup(cmd
, SPEED_1000
, cmd
->base
.port
);
6157 case CARD_INFO_TYPE_1G_FIBRE_A
:
6158 case CARD_INFO_TYPE_1G_FIBRE_B
:
6159 cmd
->base
.port
= PORT_FIBRE
;
6160 qeth_set_cmd_adv_sup(cmd
, SPEED_1000
, cmd
->base
.port
);
6162 case CARD_INFO_TYPE_10G_FIBRE_A
:
6163 case CARD_INFO_TYPE_10G_FIBRE_B
:
6164 cmd
->base
.port
= PORT_FIBRE
;
6165 qeth_set_cmd_adv_sup(cmd
, SPEED_10000
, cmd
->base
.port
);
6169 switch (carrier_info
.port_mode
) {
6170 case CARD_INFO_PORTM_FULLDUPLEX
:
6171 cmd
->base
.duplex
= DUPLEX_FULL
;
6173 case CARD_INFO_PORTM_HALFDUPLEX
:
6174 cmd
->base
.duplex
= DUPLEX_HALF
;
6178 switch (carrier_info
.port_speed
) {
6179 case CARD_INFO_PORTS_10M
:
6180 cmd
->base
.speed
= SPEED_10
;
6182 case CARD_INFO_PORTS_100M
:
6183 cmd
->base
.speed
= SPEED_100
;
6185 case CARD_INFO_PORTS_1G
:
6186 cmd
->base
.speed
= SPEED_1000
;
6188 case CARD_INFO_PORTS_10G
:
6189 cmd
->base
.speed
= SPEED_10000
;
6195 EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_link_ksettings
);
6197 /* Callback to handle checksum offload command reply from OSA card.
6198 * Verify that required features have been enabled on the card.
6199 * Return error in hdr->return_code as this value is checked by caller.
6201 * Always returns zero to indicate no further messages from the OSA card.
6203 static int qeth_ipa_checksum_run_cmd_cb(struct qeth_card
*card
,
6204 struct qeth_reply
*reply
,
6207 struct qeth_ipa_cmd
*cmd
= (struct qeth_ipa_cmd
*) data
;
6208 struct qeth_checksum_cmd
*chksum_cb
=
6209 (struct qeth_checksum_cmd
*)reply
->param
;
6211 QETH_CARD_TEXT(card
, 4, "chkdoccb");
6212 if (cmd
->hdr
.return_code
)
6215 memset(chksum_cb
, 0, sizeof(*chksum_cb
));
6216 if (cmd
->data
.setassparms
.hdr
.command_code
== IPA_CMD_ASS_START
) {
6217 chksum_cb
->supported
=
6218 cmd
->data
.setassparms
.data
.chksum
.supported
;
6219 QETH_CARD_TEXT_(card
, 3, "strt:%x", chksum_cb
->supported
);
6221 if (cmd
->data
.setassparms
.hdr
.command_code
== IPA_CMD_ASS_ENABLE
) {
6222 chksum_cb
->supported
=
6223 cmd
->data
.setassparms
.data
.chksum
.supported
;
6224 chksum_cb
->enabled
=
6225 cmd
->data
.setassparms
.data
.chksum
.enabled
;
6226 QETH_CARD_TEXT_(card
, 3, "supp:%x", chksum_cb
->supported
);
6227 QETH_CARD_TEXT_(card
, 3, "enab:%x", chksum_cb
->enabled
);
6232 /* Send command to OSA card and check results. */
6233 static int qeth_ipa_checksum_run_cmd(struct qeth_card
*card
,
6234 enum qeth_ipa_funcs ipa_func
,
6235 __u16 cmd_code
, long data
,
6236 struct qeth_checksum_cmd
*chksum_cb
)
6238 struct qeth_cmd_buffer
*iob
;
6241 QETH_CARD_TEXT(card
, 4, "chkdocmd");
6242 iob
= qeth_get_setassparms_cmd(card
, ipa_func
, cmd_code
,
6243 sizeof(__u32
), QETH_PROT_IPV4
);
6245 rc
= qeth_send_setassparms(card
, iob
, sizeof(__u32
), data
,
6246 qeth_ipa_checksum_run_cmd_cb
,
6251 static int qeth_send_checksum_on(struct qeth_card
*card
, int cstype
)
6253 const __u32 required_features
= QETH_IPA_CHECKSUM_IP_HDR
|
6254 QETH_IPA_CHECKSUM_UDP
|
6255 QETH_IPA_CHECKSUM_TCP
;
6256 struct qeth_checksum_cmd chksum_cb
;
6259 rc
= qeth_ipa_checksum_run_cmd(card
, cstype
, IPA_CMD_ASS_START
, 0,
6262 if ((required_features
& chksum_cb
.supported
) !=
6265 else if (!(QETH_IPA_CHECKSUM_LP2LP
& chksum_cb
.supported
) &&
6266 cstype
== IPA_INBOUND_CHECKSUM
)
6267 dev_warn(&card
->gdev
->dev
,
6268 "Hardware checksumming is performed only if %s and its peer use different OSA Express 3 ports\n",
6269 QETH_CARD_IFNAME(card
));
6272 qeth_send_simple_setassparms(card
, cstype
, IPA_CMD_ASS_STOP
, 0);
6273 dev_warn(&card
->gdev
->dev
,
6274 "Starting HW checksumming for %s failed, using SW checksumming\n",
6275 QETH_CARD_IFNAME(card
));
6278 rc
= qeth_ipa_checksum_run_cmd(card
, cstype
, IPA_CMD_ASS_ENABLE
,
6279 chksum_cb
.supported
, &chksum_cb
);
6281 if ((required_features
& chksum_cb
.enabled
) !=
6286 qeth_send_simple_setassparms(card
, cstype
, IPA_CMD_ASS_STOP
, 0);
6287 dev_warn(&card
->gdev
->dev
,
6288 "Enabling HW checksumming for %s failed, using SW checksumming\n",
6289 QETH_CARD_IFNAME(card
));
6293 dev_info(&card
->gdev
->dev
, "HW Checksumming (%sbound) enabled\n",
6294 cstype
== IPA_INBOUND_CHECKSUM
? "in" : "out");
6298 static int qeth_set_ipa_csum(struct qeth_card
*card
, int on
, int cstype
)
6300 int rc
= (on
) ? qeth_send_checksum_on(card
, cstype
)
6301 : qeth_send_simple_setassparms(card
, cstype
,
6302 IPA_CMD_ASS_STOP
, 0);
6303 return rc
? -EIO
: 0;
6306 static int qeth_set_ipa_tso(struct qeth_card
*card
, int on
)
6310 QETH_CARD_TEXT(card
, 3, "sttso");
6313 rc
= qeth_send_simple_setassparms(card
, IPA_OUTBOUND_TSO
,
6314 IPA_CMD_ASS_START
, 0);
6316 dev_warn(&card
->gdev
->dev
,
6317 "Starting outbound TCP segmentation offload for %s failed\n",
6318 QETH_CARD_IFNAME(card
));
6321 dev_info(&card
->gdev
->dev
, "Outbound TSO enabled\n");
6323 rc
= qeth_send_simple_setassparms(card
, IPA_OUTBOUND_TSO
,
6324 IPA_CMD_ASS_STOP
, 0);
6329 /* try to restore device features on a device after recovery */
6330 int qeth_recover_features(struct net_device
*dev
)
6332 struct qeth_card
*card
= dev
->ml_priv
;
6333 netdev_features_t recover
= dev
->features
;
6335 if (recover
& NETIF_F_IP_CSUM
) {
6336 if (qeth_set_ipa_csum(card
, 1, IPA_OUTBOUND_CHECKSUM
))
6337 recover
^= NETIF_F_IP_CSUM
;
6339 if (recover
& NETIF_F_RXCSUM
) {
6340 if (qeth_set_ipa_csum(card
, 1, IPA_INBOUND_CHECKSUM
))
6341 recover
^= NETIF_F_RXCSUM
;
6343 if (recover
& NETIF_F_TSO
) {
6344 if (qeth_set_ipa_tso(card
, 1))
6345 recover
^= NETIF_F_TSO
;
6348 if (recover
== dev
->features
)
6351 dev_warn(&card
->gdev
->dev
,
6352 "Device recovery failed to restore all offload features\n");
6353 dev
->features
= recover
;
6356 EXPORT_SYMBOL_GPL(qeth_recover_features
);
6358 int qeth_set_features(struct net_device
*dev
, netdev_features_t features
)
6360 struct qeth_card
*card
= dev
->ml_priv
;
6361 netdev_features_t changed
= dev
->features
^ features
;
6364 QETH_DBF_TEXT(SETUP
, 2, "setfeat");
6365 QETH_DBF_HEX(SETUP
, 2, &features
, sizeof(features
));
6367 if ((changed
& NETIF_F_IP_CSUM
)) {
6368 rc
= qeth_set_ipa_csum(card
,
6369 features
& NETIF_F_IP_CSUM
? 1 : 0,
6370 IPA_OUTBOUND_CHECKSUM
);
6372 changed
^= NETIF_F_IP_CSUM
;
6374 if ((changed
& NETIF_F_RXCSUM
)) {
6375 rc
= qeth_set_ipa_csum(card
,
6376 features
& NETIF_F_RXCSUM
? 1 : 0,
6377 IPA_INBOUND_CHECKSUM
);
6379 changed
^= NETIF_F_RXCSUM
;
6381 if ((changed
& NETIF_F_TSO
)) {
6382 rc
= qeth_set_ipa_tso(card
, features
& NETIF_F_TSO
? 1 : 0);
6384 changed
^= NETIF_F_TSO
;
6387 /* everything changed successfully? */
6388 if ((dev
->features
^ features
) == changed
)
6390 /* something went wrong. save changed features and return error */
6391 dev
->features
^= changed
;
6394 EXPORT_SYMBOL_GPL(qeth_set_features
);
6396 netdev_features_t
qeth_fix_features(struct net_device
*dev
,
6397 netdev_features_t features
)
6399 struct qeth_card
*card
= dev
->ml_priv
;
6401 QETH_DBF_TEXT(SETUP
, 2, "fixfeat");
6402 if (!qeth_is_supported(card
, IPA_OUTBOUND_CHECKSUM
))
6403 features
&= ~NETIF_F_IP_CSUM
;
6404 if (!qeth_is_supported(card
, IPA_INBOUND_CHECKSUM
))
6405 features
&= ~NETIF_F_RXCSUM
;
6406 if (!qeth_is_supported(card
, IPA_OUTBOUND_TSO
)) {
6407 features
&= ~NETIF_F_TSO
;
6408 dev_info(&card
->gdev
->dev
, "Outbound TSO not supported on %s\n",
6409 QETH_CARD_IFNAME(card
));
6411 /* if the card isn't up, remove features that require hw changes */
6412 if (card
->state
== CARD_STATE_DOWN
||
6413 card
->state
== CARD_STATE_RECOVER
)
6414 features
= features
& ~(NETIF_F_IP_CSUM
| NETIF_F_RXCSUM
|
6416 QETH_DBF_HEX(SETUP
, 2, &features
, sizeof(features
));
6419 EXPORT_SYMBOL_GPL(qeth_fix_features
);
6421 static int __init
qeth_core_init(void)
6425 pr_info("loading core functions\n");
6426 INIT_LIST_HEAD(&qeth_core_card_list
.list
);
6427 INIT_LIST_HEAD(&qeth_dbf_list
);
6428 rwlock_init(&qeth_core_card_list
.rwlock
);
6429 mutex_init(&qeth_mod_mutex
);
6431 qeth_wq
= create_singlethread_workqueue("qeth_wq");
6433 rc
= qeth_register_dbf_views();
6436 qeth_core_root_dev
= root_device_register("qeth");
6437 rc
= PTR_ERR_OR_ZERO(qeth_core_root_dev
);
6440 qeth_core_header_cache
= kmem_cache_create("qeth_hdr",
6441 sizeof(struct qeth_hdr
) + ETH_HLEN
, 64, 0, NULL
);
6442 if (!qeth_core_header_cache
) {
6446 qeth_qdio_outbuf_cache
= kmem_cache_create("qeth_buf",
6447 sizeof(struct qeth_qdio_out_buffer
), 0, 0, NULL
);
6448 if (!qeth_qdio_outbuf_cache
) {
6452 rc
= ccw_driver_register(&qeth_ccw_driver
);
6455 qeth_core_ccwgroup_driver
.driver
.groups
= qeth_drv_attr_groups
;
6456 rc
= ccwgroup_driver_register(&qeth_core_ccwgroup_driver
);
6463 ccw_driver_unregister(&qeth_ccw_driver
);
6465 kmem_cache_destroy(qeth_qdio_outbuf_cache
);
6467 kmem_cache_destroy(qeth_core_header_cache
);
6469 root_device_unregister(qeth_core_root_dev
);
6471 qeth_unregister_dbf_views();
6473 pr_err("Initializing the qeth device driver failed\n");
6477 static void __exit
qeth_core_exit(void)
6479 qeth_clear_dbf_list();
6480 destroy_workqueue(qeth_wq
);
6481 ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver
);
6482 ccw_driver_unregister(&qeth_ccw_driver
);
6483 kmem_cache_destroy(qeth_qdio_outbuf_cache
);
6484 kmem_cache_destroy(qeth_core_header_cache
);
6485 root_device_unregister(qeth_core_root_dev
);
6486 qeth_unregister_dbf_views();
6487 pr_info("core functions removed\n");
6490 module_init(qeth_core_init
);
6491 module_exit(qeth_core_exit
);
6492 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
6493 MODULE_DESCRIPTION("qeth core functions");
6494 MODULE_LICENSE("GPL");