]>
Commit | Line | Data |
---|---|---|
ab9953ff | 1 | // SPDX-License-Identifier: GPL-2.0 |
4a71df50 | 2 | /* |
bbcfcdc8 | 3 | * Copyright IBM Corp. 2007, 2009 |
4a71df50 FB |
4 | * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, |
5 | * Frank Pavlic <fpavlic@de.ibm.com>, | |
6 | * Thomas Spatzier <tspat@de.ibm.com>, | |
7 | * Frank Blaschka <frank.blaschka@de.ibm.com> | |
8 | */ | |
9 | ||
74eacdb9 FB |
10 | #define KMSG_COMPONENT "qeth" |
11 | #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt | |
12 | ||
4a71df50 FB |
13 | #include <linux/module.h> |
14 | #include <linux/moduleparam.h> | |
15 | #include <linux/string.h> | |
16 | #include <linux/errno.h> | |
17 | #include <linux/kernel.h> | |
18 | #include <linux/ip.h> | |
4a71df50 FB |
19 | #include <linux/tcp.h> |
20 | #include <linux/mii.h> | |
21 | #include <linux/kthread.h> | |
5a0e3ad6 | 22 | #include <linux/slab.h> |
b3332930 | 23 | #include <net/iucv/af_iucv.h> |
290b8348 | 24 | #include <net/dsfield.h> |
4a71df50 | 25 | |
ab4227cb | 26 | #include <asm/ebcdic.h> |
2bf29df7 | 27 | #include <asm/chpid.h> |
ab4227cb | 28 | #include <asm/io.h> |
1da74b1c | 29 | #include <asm/sysinfo.h> |
c3ab96f3 | 30 | #include <asm/compat.h> |
ec61bd2f JW |
31 | #include <asm/diag.h> |
32 | #include <asm/cio.h> | |
33 | #include <asm/ccwdev.h> | |
4a71df50 FB |
34 | |
35 | #include "qeth_core.h" | |
4a71df50 | 36 | |
d11ba0c4 PT |
37 | struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = { |
38 | /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */ | |
39 | /* N P A M L V H */ | |
40 | [QETH_DBF_SETUP] = {"qeth_setup", | |
41 | 8, 1, 8, 5, &debug_hex_ascii_view, NULL}, | |
f7e1e65d SO |
42 | [QETH_DBF_MSG] = {"qeth_msg", 8, 1, 11 * sizeof(long), 3, |
43 | &debug_sprintf_view, NULL}, | |
d11ba0c4 PT |
44 | [QETH_DBF_CTRL] = {"qeth_control", |
45 | 8, 1, QETH_DBF_CTRL_LEN, 5, &debug_hex_ascii_view, NULL}, | |
46 | }; | |
47 | EXPORT_SYMBOL_GPL(qeth_dbf); | |
4a71df50 FB |
48 | |
49 | struct qeth_card_list_struct qeth_core_card_list; | |
50 | EXPORT_SYMBOL_GPL(qeth_core_card_list); | |
683d718a FB |
51 | struct kmem_cache *qeth_core_header_cache; |
52 | EXPORT_SYMBOL_GPL(qeth_core_header_cache); | |
0da9581d | 53 | static struct kmem_cache *qeth_qdio_outbuf_cache; |
4a71df50 FB |
54 | |
55 | static struct device *qeth_core_root_dev; | |
4a71df50 | 56 | static struct lock_class_key qdio_out_skb_queue_key; |
2022e00c | 57 | static struct mutex qeth_mod_mutex; |
4a71df50 FB |
58 | |
59 | static void qeth_send_control_data_cb(struct qeth_channel *, | |
60 | struct qeth_cmd_buffer *); | |
4a71df50 FB |
61 | static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *); |
62 | static void qeth_setup_ccw(struct qeth_channel *, unsigned char *, __u32); | |
63 | static void qeth_free_buffer_pool(struct qeth_card *); | |
64 | static int qeth_qdio_establish(struct qeth_card *); | |
0da9581d | 65 | static void qeth_free_qdio_buffers(struct qeth_card *); |
b3332930 FB |
66 | static void qeth_notify_skbs(struct qeth_qdio_out_q *queue, |
67 | struct qeth_qdio_out_buffer *buf, | |
68 | enum iucv_tx_notify notification); | |
69 | static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf); | |
0da9581d EL |
70 | static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, |
71 | struct qeth_qdio_out_buffer *buf, | |
72 | enum qeth_qdio_buffer_states newbufstate); | |
72861ae7 | 73 | static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *, int); |
4a71df50 | 74 | |
b4d72c08 | 75 | struct workqueue_struct *qeth_wq; |
c044dc21 | 76 | EXPORT_SYMBOL_GPL(qeth_wq); |
0f54761d | 77 | |
511c2445 EC |
78 | int qeth_card_hw_is_reachable(struct qeth_card *card) |
79 | { | |
80 | return (card->state == CARD_STATE_SOFTSETUP) || | |
81 | (card->state == CARD_STATE_UP); | |
82 | } | |
83 | EXPORT_SYMBOL_GPL(qeth_card_hw_is_reachable); | |
84 | ||
0f54761d SR |
85 | static void qeth_close_dev_handler(struct work_struct *work) |
86 | { | |
87 | struct qeth_card *card; | |
88 | ||
89 | card = container_of(work, struct qeth_card, close_dev_work); | |
90 | QETH_CARD_TEXT(card, 2, "cldevhdl"); | |
91 | rtnl_lock(); | |
92 | dev_close(card->dev); | |
93 | rtnl_unlock(); | |
94 | ccwgroup_set_offline(card->gdev); | |
95 | } | |
96 | ||
97 | void qeth_close_dev(struct qeth_card *card) | |
98 | { | |
99 | QETH_CARD_TEXT(card, 2, "cldevsubm"); | |
100 | queue_work(qeth_wq, &card->close_dev_work); | |
101 | } | |
102 | EXPORT_SYMBOL_GPL(qeth_close_dev); | |
103 | ||
cef6ff22 | 104 | static const char *qeth_get_cardname(struct qeth_card *card) |
4a71df50 FB |
105 | { |
106 | if (card->info.guestlan) { | |
107 | switch (card->info.type) { | |
5113fec0 | 108 | case QETH_CARD_TYPE_OSD: |
7096b187 | 109 | return " Virtual NIC QDIO"; |
4a71df50 | 110 | case QETH_CARD_TYPE_IQD: |
7096b187 | 111 | return " Virtual NIC Hiper"; |
5113fec0 | 112 | case QETH_CARD_TYPE_OSM: |
7096b187 | 113 | return " Virtual NIC QDIO - OSM"; |
5113fec0 | 114 | case QETH_CARD_TYPE_OSX: |
7096b187 | 115 | return " Virtual NIC QDIO - OSX"; |
4a71df50 FB |
116 | default: |
117 | return " unknown"; | |
118 | } | |
119 | } else { | |
120 | switch (card->info.type) { | |
5113fec0 | 121 | case QETH_CARD_TYPE_OSD: |
4a71df50 FB |
122 | return " OSD Express"; |
123 | case QETH_CARD_TYPE_IQD: | |
124 | return " HiperSockets"; | |
125 | case QETH_CARD_TYPE_OSN: | |
126 | return " OSN QDIO"; | |
5113fec0 UB |
127 | case QETH_CARD_TYPE_OSM: |
128 | return " OSM QDIO"; | |
129 | case QETH_CARD_TYPE_OSX: | |
130 | return " OSX QDIO"; | |
4a71df50 FB |
131 | default: |
132 | return " unknown"; | |
133 | } | |
134 | } | |
135 | return " n/a"; | |
136 | } | |
137 | ||
138 | /* max length to be returned: 14 */ | |
139 | const char *qeth_get_cardname_short(struct qeth_card *card) | |
140 | { | |
141 | if (card->info.guestlan) { | |
142 | switch (card->info.type) { | |
5113fec0 | 143 | case QETH_CARD_TYPE_OSD: |
7096b187 | 144 | return "Virt.NIC QDIO"; |
4a71df50 | 145 | case QETH_CARD_TYPE_IQD: |
7096b187 | 146 | return "Virt.NIC Hiper"; |
5113fec0 | 147 | case QETH_CARD_TYPE_OSM: |
7096b187 | 148 | return "Virt.NIC OSM"; |
5113fec0 | 149 | case QETH_CARD_TYPE_OSX: |
7096b187 | 150 | return "Virt.NIC OSX"; |
4a71df50 FB |
151 | default: |
152 | return "unknown"; | |
153 | } | |
154 | } else { | |
155 | switch (card->info.type) { | |
5113fec0 | 156 | case QETH_CARD_TYPE_OSD: |
4a71df50 FB |
157 | switch (card->info.link_type) { |
158 | case QETH_LINK_TYPE_FAST_ETH: | |
159 | return "OSD_100"; | |
160 | case QETH_LINK_TYPE_HSTR: | |
161 | return "HSTR"; | |
162 | case QETH_LINK_TYPE_GBIT_ETH: | |
163 | return "OSD_1000"; | |
164 | case QETH_LINK_TYPE_10GBIT_ETH: | |
165 | return "OSD_10GIG"; | |
166 | case QETH_LINK_TYPE_LANE_ETH100: | |
167 | return "OSD_FE_LANE"; | |
168 | case QETH_LINK_TYPE_LANE_TR: | |
169 | return "OSD_TR_LANE"; | |
170 | case QETH_LINK_TYPE_LANE_ETH1000: | |
171 | return "OSD_GbE_LANE"; | |
172 | case QETH_LINK_TYPE_LANE: | |
173 | return "OSD_ATM_LANE"; | |
174 | default: | |
175 | return "OSD_Express"; | |
176 | } | |
177 | case QETH_CARD_TYPE_IQD: | |
178 | return "HiperSockets"; | |
179 | case QETH_CARD_TYPE_OSN: | |
180 | return "OSN"; | |
5113fec0 UB |
181 | case QETH_CARD_TYPE_OSM: |
182 | return "OSM_1000"; | |
183 | case QETH_CARD_TYPE_OSX: | |
184 | return "OSX_10GIG"; | |
4a71df50 FB |
185 | default: |
186 | return "unknown"; | |
187 | } | |
188 | } | |
189 | return "n/a"; | |
190 | } | |
191 | ||
65d8013c SR |
192 | void qeth_set_recovery_task(struct qeth_card *card) |
193 | { | |
194 | card->recovery_task = current; | |
195 | } | |
196 | EXPORT_SYMBOL_GPL(qeth_set_recovery_task); | |
197 | ||
198 | void qeth_clear_recovery_task(struct qeth_card *card) | |
199 | { | |
200 | card->recovery_task = NULL; | |
201 | } | |
202 | EXPORT_SYMBOL_GPL(qeth_clear_recovery_task); | |
203 | ||
204 | static bool qeth_is_recovery_task(const struct qeth_card *card) | |
205 | { | |
206 | return card->recovery_task == current; | |
207 | } | |
208 | ||
4a71df50 FB |
209 | void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads, |
210 | int clear_start_mask) | |
211 | { | |
212 | unsigned long flags; | |
213 | ||
214 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
215 | card->thread_allowed_mask = threads; | |
216 | if (clear_start_mask) | |
217 | card->thread_start_mask &= threads; | |
218 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
219 | wake_up(&card->wait_q); | |
220 | } | |
221 | EXPORT_SYMBOL_GPL(qeth_set_allowed_threads); | |
222 | ||
223 | int qeth_threads_running(struct qeth_card *card, unsigned long threads) | |
224 | { | |
225 | unsigned long flags; | |
226 | int rc = 0; | |
227 | ||
228 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
229 | rc = (card->thread_running_mask & threads); | |
230 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
231 | return rc; | |
232 | } | |
233 | EXPORT_SYMBOL_GPL(qeth_threads_running); | |
234 | ||
235 | int qeth_wait_for_threads(struct qeth_card *card, unsigned long threads) | |
236 | { | |
65d8013c SR |
237 | if (qeth_is_recovery_task(card)) |
238 | return 0; | |
4a71df50 FB |
239 | return wait_event_interruptible(card->wait_q, |
240 | qeth_threads_running(card, threads) == 0); | |
241 | } | |
242 | EXPORT_SYMBOL_GPL(qeth_wait_for_threads); | |
243 | ||
244 | void qeth_clear_working_pool_list(struct qeth_card *card) | |
245 | { | |
246 | struct qeth_buffer_pool_entry *pool_entry, *tmp; | |
247 | ||
847a50fd | 248 | QETH_CARD_TEXT(card, 5, "clwrklst"); |
4a71df50 FB |
249 | list_for_each_entry_safe(pool_entry, tmp, |
250 | &card->qdio.in_buf_pool.entry_list, list){ | |
251 | list_del(&pool_entry->list); | |
252 | } | |
253 | } | |
254 | EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list); | |
255 | ||
256 | static int qeth_alloc_buffer_pool(struct qeth_card *card) | |
257 | { | |
258 | struct qeth_buffer_pool_entry *pool_entry; | |
259 | void *ptr; | |
260 | int i, j; | |
261 | ||
847a50fd | 262 | QETH_CARD_TEXT(card, 5, "alocpool"); |
4a71df50 | 263 | for (i = 0; i < card->qdio.init_pool.buf_count; ++i) { |
b3332930 | 264 | pool_entry = kzalloc(sizeof(*pool_entry), GFP_KERNEL); |
4a71df50 FB |
265 | if (!pool_entry) { |
266 | qeth_free_buffer_pool(card); | |
267 | return -ENOMEM; | |
268 | } | |
269 | for (j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j) { | |
508b3c4f | 270 | ptr = (void *) __get_free_page(GFP_KERNEL); |
4a71df50 FB |
271 | if (!ptr) { |
272 | while (j > 0) | |
273 | free_page((unsigned long) | |
274 | pool_entry->elements[--j]); | |
275 | kfree(pool_entry); | |
276 | qeth_free_buffer_pool(card); | |
277 | return -ENOMEM; | |
278 | } | |
279 | pool_entry->elements[j] = ptr; | |
280 | } | |
281 | list_add(&pool_entry->init_list, | |
282 | &card->qdio.init_pool.entry_list); | |
283 | } | |
284 | return 0; | |
285 | } | |
286 | ||
287 | int qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt) | |
288 | { | |
847a50fd | 289 | QETH_CARD_TEXT(card, 2, "realcbp"); |
4a71df50 FB |
290 | |
291 | if ((card->state != CARD_STATE_DOWN) && | |
292 | (card->state != CARD_STATE_RECOVER)) | |
293 | return -EPERM; | |
294 | ||
295 | /* TODO: steel/add buffers from/to a running card's buffer pool (?) */ | |
296 | qeth_clear_working_pool_list(card); | |
297 | qeth_free_buffer_pool(card); | |
298 | card->qdio.in_buf_pool.buf_count = bufcnt; | |
299 | card->qdio.init_pool.buf_count = bufcnt; | |
300 | return qeth_alloc_buffer_pool(card); | |
301 | } | |
76b11f8e | 302 | EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool); |
4a71df50 | 303 | |
4601ba6c SO |
304 | static void qeth_free_qdio_queue(struct qeth_qdio_q *q) |
305 | { | |
6d284bde SO |
306 | if (!q) |
307 | return; | |
308 | ||
309 | qdio_free_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q); | |
4601ba6c SO |
310 | kfree(q); |
311 | } | |
312 | ||
313 | static struct qeth_qdio_q *qeth_alloc_qdio_queue(void) | |
314 | { | |
315 | struct qeth_qdio_q *q = kzalloc(sizeof(*q), GFP_KERNEL); | |
316 | int i; | |
317 | ||
318 | if (!q) | |
319 | return NULL; | |
320 | ||
6d284bde SO |
321 | if (qdio_alloc_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q)) { |
322 | kfree(q); | |
323 | return NULL; | |
324 | } | |
325 | ||
4601ba6c | 326 | for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) |
6d284bde | 327 | q->bufs[i].buffer = q->qdio_bufs[i]; |
4601ba6c SO |
328 | |
329 | QETH_DBF_HEX(SETUP, 2, &q, sizeof(void *)); | |
330 | return q; | |
331 | } | |
332 | ||
cef6ff22 | 333 | static int qeth_cq_init(struct qeth_card *card) |
0da9581d EL |
334 | { |
335 | int rc; | |
336 | ||
337 | if (card->options.cq == QETH_CQ_ENABLED) { | |
338 | QETH_DBF_TEXT(SETUP, 2, "cqinit"); | |
6d284bde SO |
339 | qdio_reset_buffers(card->qdio.c_q->qdio_bufs, |
340 | QDIO_MAX_BUFFERS_PER_Q); | |
0da9581d EL |
341 | card->qdio.c_q->next_buf_to_init = 127; |
342 | rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, | |
343 | card->qdio.no_in_queues - 1, 0, | |
344 | 127); | |
345 | if (rc) { | |
346 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); | |
347 | goto out; | |
348 | } | |
349 | } | |
350 | rc = 0; | |
351 | out: | |
352 | return rc; | |
353 | } | |
354 | ||
cef6ff22 | 355 | static int qeth_alloc_cq(struct qeth_card *card) |
0da9581d EL |
356 | { |
357 | int rc; | |
358 | ||
359 | if (card->options.cq == QETH_CQ_ENABLED) { | |
360 | int i; | |
361 | struct qdio_outbuf_state *outbuf_states; | |
362 | ||
363 | QETH_DBF_TEXT(SETUP, 2, "cqon"); | |
4601ba6c | 364 | card->qdio.c_q = qeth_alloc_qdio_queue(); |
0da9581d EL |
365 | if (!card->qdio.c_q) { |
366 | rc = -1; | |
367 | goto kmsg_out; | |
368 | } | |
0da9581d | 369 | card->qdio.no_in_queues = 2; |
4a912f98 | 370 | card->qdio.out_bufstates = |
0da9581d EL |
371 | kzalloc(card->qdio.no_out_queues * |
372 | QDIO_MAX_BUFFERS_PER_Q * | |
373 | sizeof(struct qdio_outbuf_state), GFP_KERNEL); | |
374 | outbuf_states = card->qdio.out_bufstates; | |
375 | if (outbuf_states == NULL) { | |
376 | rc = -1; | |
377 | goto free_cq_out; | |
378 | } | |
379 | for (i = 0; i < card->qdio.no_out_queues; ++i) { | |
380 | card->qdio.out_qs[i]->bufstates = outbuf_states; | |
381 | outbuf_states += QDIO_MAX_BUFFERS_PER_Q; | |
382 | } | |
383 | } else { | |
384 | QETH_DBF_TEXT(SETUP, 2, "nocq"); | |
385 | card->qdio.c_q = NULL; | |
386 | card->qdio.no_in_queues = 1; | |
387 | } | |
388 | QETH_DBF_TEXT_(SETUP, 2, "iqc%d", card->qdio.no_in_queues); | |
389 | rc = 0; | |
390 | out: | |
391 | return rc; | |
392 | free_cq_out: | |
4601ba6c | 393 | qeth_free_qdio_queue(card->qdio.c_q); |
0da9581d EL |
394 | card->qdio.c_q = NULL; |
395 | kmsg_out: | |
396 | dev_err(&card->gdev->dev, "Failed to create completion queue\n"); | |
397 | goto out; | |
398 | } | |
399 | ||
cef6ff22 | 400 | static void qeth_free_cq(struct qeth_card *card) |
0da9581d EL |
401 | { |
402 | if (card->qdio.c_q) { | |
403 | --card->qdio.no_in_queues; | |
4601ba6c | 404 | qeth_free_qdio_queue(card->qdio.c_q); |
0da9581d EL |
405 | card->qdio.c_q = NULL; |
406 | } | |
407 | kfree(card->qdio.out_bufstates); | |
408 | card->qdio.out_bufstates = NULL; | |
409 | } | |
410 | ||
cef6ff22 JW |
411 | static enum iucv_tx_notify qeth_compute_cq_notification(int sbalf15, |
412 | int delayed) | |
413 | { | |
b3332930 FB |
414 | enum iucv_tx_notify n; |
415 | ||
416 | switch (sbalf15) { | |
417 | case 0: | |
418 | n = delayed ? TX_NOTIFY_DELAYED_OK : TX_NOTIFY_OK; | |
419 | break; | |
420 | case 4: | |
421 | case 16: | |
422 | case 17: | |
423 | case 18: | |
424 | n = delayed ? TX_NOTIFY_DELAYED_UNREACHABLE : | |
425 | TX_NOTIFY_UNREACHABLE; | |
426 | break; | |
427 | default: | |
428 | n = delayed ? TX_NOTIFY_DELAYED_GENERALERROR : | |
429 | TX_NOTIFY_GENERALERROR; | |
430 | break; | |
431 | } | |
432 | ||
433 | return n; | |
434 | } | |
435 | ||
cef6ff22 JW |
436 | static void qeth_cleanup_handled_pending(struct qeth_qdio_out_q *q, int bidx, |
437 | int forced_cleanup) | |
0da9581d | 438 | { |
72861ae7 EL |
439 | if (q->card->options.cq != QETH_CQ_ENABLED) |
440 | return; | |
441 | ||
0da9581d EL |
442 | if (q->bufs[bidx]->next_pending != NULL) { |
443 | struct qeth_qdio_out_buffer *head = q->bufs[bidx]; | |
444 | struct qeth_qdio_out_buffer *c = q->bufs[bidx]->next_pending; | |
445 | ||
446 | while (c) { | |
447 | if (forced_cleanup || | |
448 | atomic_read(&c->state) == | |
449 | QETH_QDIO_BUF_HANDLED_DELAYED) { | |
450 | struct qeth_qdio_out_buffer *f = c; | |
451 | QETH_CARD_TEXT(f->q->card, 5, "fp"); | |
452 | QETH_CARD_TEXT_(f->q->card, 5, "%lx", (long) f); | |
b3332930 FB |
453 | /* release here to avoid interleaving between |
454 | outbound tasklet and inbound tasklet | |
455 | regarding notifications and lifecycle */ | |
456 | qeth_release_skbs(c); | |
457 | ||
0da9581d | 458 | c = f->next_pending; |
18af5c17 | 459 | WARN_ON_ONCE(head->next_pending != f); |
0da9581d EL |
460 | head->next_pending = c; |
461 | kmem_cache_free(qeth_qdio_outbuf_cache, f); | |
462 | } else { | |
463 | head = c; | |
464 | c = c->next_pending; | |
465 | } | |
466 | ||
467 | } | |
468 | } | |
72861ae7 EL |
469 | if (forced_cleanup && (atomic_read(&(q->bufs[bidx]->state)) == |
470 | QETH_QDIO_BUF_HANDLED_DELAYED)) { | |
471 | /* for recovery situations */ | |
472 | q->bufs[bidx]->aob = q->bufstates[bidx].aob; | |
473 | qeth_init_qdio_out_buf(q, bidx); | |
474 | QETH_CARD_TEXT(q->card, 2, "clprecov"); | |
475 | } | |
0da9581d EL |
476 | } |
477 | ||
478 | ||
cef6ff22 JW |
479 | static void qeth_qdio_handle_aob(struct qeth_card *card, |
480 | unsigned long phys_aob_addr) | |
481 | { | |
0da9581d EL |
482 | struct qaob *aob; |
483 | struct qeth_qdio_out_buffer *buffer; | |
b3332930 | 484 | enum iucv_tx_notify notification; |
0da9581d EL |
485 | |
486 | aob = (struct qaob *) phys_to_virt(phys_aob_addr); | |
487 | QETH_CARD_TEXT(card, 5, "haob"); | |
488 | QETH_CARD_TEXT_(card, 5, "%lx", phys_aob_addr); | |
489 | buffer = (struct qeth_qdio_out_buffer *) aob->user1; | |
490 | QETH_CARD_TEXT_(card, 5, "%lx", aob->user1); | |
491 | ||
b3332930 FB |
492 | if (atomic_cmpxchg(&buffer->state, QETH_QDIO_BUF_PRIMED, |
493 | QETH_QDIO_BUF_IN_CQ) == QETH_QDIO_BUF_PRIMED) { | |
494 | notification = TX_NOTIFY_OK; | |
495 | } else { | |
18af5c17 SR |
496 | WARN_ON_ONCE(atomic_read(&buffer->state) != |
497 | QETH_QDIO_BUF_PENDING); | |
b3332930 FB |
498 | atomic_set(&buffer->state, QETH_QDIO_BUF_IN_CQ); |
499 | notification = TX_NOTIFY_DELAYED_OK; | |
500 | } | |
501 | ||
502 | if (aob->aorc != 0) { | |
503 | QETH_CARD_TEXT_(card, 2, "aorc%02X", aob->aorc); | |
504 | notification = qeth_compute_cq_notification(aob->aorc, 1); | |
505 | } | |
506 | qeth_notify_skbs(buffer->q, buffer, notification); | |
507 | ||
0da9581d EL |
508 | buffer->aob = NULL; |
509 | qeth_clear_output_buffer(buffer->q, buffer, | |
72861ae7 EL |
510 | QETH_QDIO_BUF_HANDLED_DELAYED); |
511 | ||
0da9581d EL |
512 | /* from here on: do not touch buffer anymore */ |
513 | qdio_release_aob(aob); | |
514 | } | |
515 | ||
516 | static inline int qeth_is_cq(struct qeth_card *card, unsigned int queue) | |
517 | { | |
518 | return card->options.cq == QETH_CQ_ENABLED && | |
519 | card->qdio.c_q != NULL && | |
520 | queue != 0 && | |
521 | queue == card->qdio.no_in_queues - 1; | |
522 | } | |
523 | ||
524 | ||
4a71df50 FB |
525 | static int qeth_issue_next_read(struct qeth_card *card) |
526 | { | |
527 | int rc; | |
528 | struct qeth_cmd_buffer *iob; | |
529 | ||
847a50fd | 530 | QETH_CARD_TEXT(card, 5, "issnxrd"); |
4a71df50 FB |
531 | if (card->read.state != CH_STATE_UP) |
532 | return -EIO; | |
533 | iob = qeth_get_buffer(&card->read); | |
534 | if (!iob) { | |
74eacdb9 FB |
535 | dev_warn(&card->gdev->dev, "The qeth device driver " |
536 | "failed to recover an error on the device\n"); | |
537 | QETH_DBF_MESSAGE(2, "%s issue_next_read failed: no iob " | |
538 | "available\n", dev_name(&card->gdev->dev)); | |
4a71df50 FB |
539 | return -ENOMEM; |
540 | } | |
541 | qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE); | |
847a50fd | 542 | QETH_CARD_TEXT(card, 6, "noirqpnd"); |
4a71df50 FB |
543 | rc = ccw_device_start(card->read.ccwdev, &card->read.ccw, |
544 | (addr_t) iob, 0, 0); | |
545 | if (rc) { | |
74eacdb9 FB |
546 | QETH_DBF_MESSAGE(2, "%s error in starting next read ccw! " |
547 | "rc=%i\n", dev_name(&card->gdev->dev), rc); | |
4a71df50 | 548 | atomic_set(&card->read.irq_pending, 0); |
908abbb5 | 549 | card->read_or_write_problem = 1; |
4a71df50 FB |
550 | qeth_schedule_recovery(card); |
551 | wake_up(&card->wait_q); | |
552 | } | |
553 | return rc; | |
554 | } | |
555 | ||
556 | static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card) | |
557 | { | |
558 | struct qeth_reply *reply; | |
559 | ||
560 | reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC); | |
561 | if (reply) { | |
562 | atomic_set(&reply->refcnt, 1); | |
563 | atomic_set(&reply->received, 0); | |
564 | reply->card = card; | |
6531084c | 565 | } |
4a71df50 FB |
566 | return reply; |
567 | } | |
568 | ||
569 | static void qeth_get_reply(struct qeth_reply *reply) | |
570 | { | |
571 | WARN_ON(atomic_read(&reply->refcnt) <= 0); | |
572 | atomic_inc(&reply->refcnt); | |
573 | } | |
574 | ||
575 | static void qeth_put_reply(struct qeth_reply *reply) | |
576 | { | |
577 | WARN_ON(atomic_read(&reply->refcnt) <= 0); | |
578 | if (atomic_dec_and_test(&reply->refcnt)) | |
579 | kfree(reply); | |
580 | } | |
581 | ||
d11ba0c4 | 582 | static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc, |
4a71df50 FB |
583 | struct qeth_card *card) |
584 | { | |
4a71df50 | 585 | char *ipa_name; |
d11ba0c4 | 586 | int com = cmd->hdr.command; |
4a71df50 | 587 | ipa_name = qeth_get_ipa_cmd_name(com); |
d11ba0c4 | 588 | if (rc) |
70919e23 UB |
589 | QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s/%s returned " |
590 | "x%X \"%s\"\n", | |
591 | ipa_name, com, dev_name(&card->gdev->dev), | |
592 | QETH_CARD_IFNAME(card), rc, | |
593 | qeth_get_ipa_msg(rc)); | |
d11ba0c4 | 594 | else |
70919e23 UB |
595 | QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s/%s succeeded\n", |
596 | ipa_name, com, dev_name(&card->gdev->dev), | |
597 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
598 | } |
599 | ||
600 | static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card, | |
601 | struct qeth_cmd_buffer *iob) | |
602 | { | |
603 | struct qeth_ipa_cmd *cmd = NULL; | |
604 | ||
847a50fd | 605 | QETH_CARD_TEXT(card, 5, "chkipad"); |
4a71df50 FB |
606 | if (IS_IPA(iob->data)) { |
607 | cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data); | |
608 | if (IS_IPA_REPLY(cmd)) { | |
76b11f8e UB |
609 | if (cmd->hdr.command != IPA_CMD_SETCCID && |
610 | cmd->hdr.command != IPA_CMD_DELCCID && | |
611 | cmd->hdr.command != IPA_CMD_MODCCID && | |
612 | cmd->hdr.command != IPA_CMD_SET_DIAG_ASS) | |
d11ba0c4 PT |
613 | qeth_issue_ipa_msg(cmd, |
614 | cmd->hdr.return_code, card); | |
4a71df50 FB |
615 | return cmd; |
616 | } else { | |
617 | switch (cmd->hdr.command) { | |
618 | case IPA_CMD_STOPLAN: | |
0f54761d SR |
619 | if (cmd->hdr.return_code == |
620 | IPA_RC_VEPA_TO_VEB_TRANSITION) { | |
621 | dev_err(&card->gdev->dev, | |
622 | "Interface %s is down because the " | |
623 | "adjacent port is no longer in " | |
624 | "reflective relay mode\n", | |
625 | QETH_CARD_IFNAME(card)); | |
626 | qeth_close_dev(card); | |
627 | } else { | |
628 | dev_warn(&card->gdev->dev, | |
74eacdb9 FB |
629 | "The link for interface %s on CHPID" |
630 | " 0x%X failed\n", | |
4a71df50 FB |
631 | QETH_CARD_IFNAME(card), |
632 | card->info.chpid); | |
0f54761d SR |
633 | qeth_issue_ipa_msg(cmd, |
634 | cmd->hdr.return_code, card); | |
635 | } | |
4a71df50 FB |
636 | card->lan_online = 0; |
637 | if (card->dev && netif_carrier_ok(card->dev)) | |
638 | netif_carrier_off(card->dev); | |
639 | return NULL; | |
640 | case IPA_CMD_STARTLAN: | |
74eacdb9 FB |
641 | dev_info(&card->gdev->dev, |
642 | "The link for %s on CHPID 0x%X has" | |
643 | " been restored\n", | |
4a71df50 FB |
644 | QETH_CARD_IFNAME(card), |
645 | card->info.chpid); | |
646 | netif_carrier_on(card->dev); | |
922dc062 | 647 | card->lan_online = 1; |
1da74b1c FB |
648 | if (card->info.hwtrap) |
649 | card->info.hwtrap = 2; | |
4a71df50 FB |
650 | qeth_schedule_recovery(card); |
651 | return NULL; | |
9c23f4da EC |
652 | case IPA_CMD_SETBRIDGEPORT_IQD: |
653 | case IPA_CMD_SETBRIDGEPORT_OSA: | |
9f48b9db | 654 | case IPA_CMD_ADDRESS_CHANGE_NOTIF: |
c044dc21 EC |
655 | if (card->discipline->control_event_handler |
656 | (card, cmd)) | |
657 | return cmd; | |
658 | else | |
659 | return NULL; | |
4a71df50 FB |
660 | case IPA_CMD_MODCCID: |
661 | return cmd; | |
662 | case IPA_CMD_REGISTER_LOCAL_ADDR: | |
847a50fd | 663 | QETH_CARD_TEXT(card, 3, "irla"); |
4a71df50 FB |
664 | break; |
665 | case IPA_CMD_UNREGISTER_LOCAL_ADDR: | |
847a50fd | 666 | QETH_CARD_TEXT(card, 3, "urla"); |
4a71df50 FB |
667 | break; |
668 | default: | |
c4cef07c | 669 | QETH_DBF_MESSAGE(2, "Received data is IPA " |
4a71df50 FB |
670 | "but not a reply!\n"); |
671 | break; | |
672 | } | |
673 | } | |
674 | } | |
675 | return cmd; | |
676 | } | |
677 | ||
678 | void qeth_clear_ipacmd_list(struct qeth_card *card) | |
679 | { | |
680 | struct qeth_reply *reply, *r; | |
681 | unsigned long flags; | |
682 | ||
847a50fd | 683 | QETH_CARD_TEXT(card, 4, "clipalst"); |
4a71df50 FB |
684 | |
685 | spin_lock_irqsave(&card->lock, flags); | |
686 | list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) { | |
687 | qeth_get_reply(reply); | |
688 | reply->rc = -EIO; | |
689 | atomic_inc(&reply->received); | |
690 | list_del_init(&reply->list); | |
691 | wake_up(&reply->wait_q); | |
692 | qeth_put_reply(reply); | |
693 | } | |
694 | spin_unlock_irqrestore(&card->lock, flags); | |
908abbb5 | 695 | atomic_set(&card->write.irq_pending, 0); |
4a71df50 FB |
696 | } |
697 | EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list); | |
698 | ||
5113fec0 UB |
699 | static int qeth_check_idx_response(struct qeth_card *card, |
700 | unsigned char *buffer) | |
4a71df50 FB |
701 | { |
702 | if (!buffer) | |
703 | return 0; | |
704 | ||
d11ba0c4 | 705 | QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN); |
4a71df50 | 706 | if ((buffer[2] & 0xc0) == 0xc0) { |
74eacdb9 | 707 | QETH_DBF_MESSAGE(2, "received an IDX TERMINATE " |
4a71df50 FB |
708 | "with cause code 0x%02x%s\n", |
709 | buffer[4], | |
710 | ((buffer[4] == 0x22) ? | |
711 | " -- try another portname" : "")); | |
847a50fd CO |
712 | QETH_CARD_TEXT(card, 2, "ckidxres"); |
713 | QETH_CARD_TEXT(card, 2, " idxterm"); | |
714 | QETH_CARD_TEXT_(card, 2, " rc%d", -EIO); | |
5113fec0 UB |
715 | if (buffer[4] == 0xf6) { |
716 | dev_err(&card->gdev->dev, | |
717 | "The qeth device is not configured " | |
718 | "for the OSI layer required by z/VM\n"); | |
719 | return -EPERM; | |
720 | } | |
4a71df50 FB |
721 | return -EIO; |
722 | } | |
723 | return 0; | |
724 | } | |
725 | ||
bca51650 TR |
726 | static struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev) |
727 | { | |
728 | struct qeth_card *card = dev_get_drvdata(&((struct ccwgroup_device *) | |
729 | dev_get_drvdata(&cdev->dev))->dev); | |
730 | return card; | |
731 | } | |
732 | ||
4a71df50 FB |
733 | static void qeth_setup_ccw(struct qeth_channel *channel, unsigned char *iob, |
734 | __u32 len) | |
735 | { | |
736 | struct qeth_card *card; | |
737 | ||
4a71df50 | 738 | card = CARD_FROM_CDEV(channel->ccwdev); |
847a50fd | 739 | QETH_CARD_TEXT(card, 4, "setupccw"); |
4a71df50 FB |
740 | if (channel == &card->read) |
741 | memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1)); | |
742 | else | |
743 | memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1)); | |
744 | channel->ccw.count = len; | |
745 | channel->ccw.cda = (__u32) __pa(iob); | |
746 | } | |
747 | ||
748 | static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel) | |
749 | { | |
750 | __u8 index; | |
751 | ||
847a50fd | 752 | QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "getbuff"); |
4a71df50 FB |
753 | index = channel->io_buf_no; |
754 | do { | |
755 | if (channel->iob[index].state == BUF_STATE_FREE) { | |
756 | channel->iob[index].state = BUF_STATE_LOCKED; | |
757 | channel->io_buf_no = (channel->io_buf_no + 1) % | |
758 | QETH_CMD_BUFFER_NO; | |
759 | memset(channel->iob[index].data, 0, QETH_BUFSIZE); | |
760 | return channel->iob + index; | |
761 | } | |
762 | index = (index + 1) % QETH_CMD_BUFFER_NO; | |
763 | } while (index != channel->io_buf_no); | |
764 | ||
765 | return NULL; | |
766 | } | |
767 | ||
768 | void qeth_release_buffer(struct qeth_channel *channel, | |
769 | struct qeth_cmd_buffer *iob) | |
770 | { | |
771 | unsigned long flags; | |
772 | ||
847a50fd | 773 | QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "relbuff"); |
4a71df50 FB |
774 | spin_lock_irqsave(&channel->iob_lock, flags); |
775 | memset(iob->data, 0, QETH_BUFSIZE); | |
776 | iob->state = BUF_STATE_FREE; | |
777 | iob->callback = qeth_send_control_data_cb; | |
778 | iob->rc = 0; | |
779 | spin_unlock_irqrestore(&channel->iob_lock, flags); | |
039055b9 | 780 | wake_up(&channel->wait_q); |
4a71df50 FB |
781 | } |
782 | EXPORT_SYMBOL_GPL(qeth_release_buffer); | |
783 | ||
784 | static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel) | |
785 | { | |
786 | struct qeth_cmd_buffer *buffer = NULL; | |
787 | unsigned long flags; | |
788 | ||
789 | spin_lock_irqsave(&channel->iob_lock, flags); | |
790 | buffer = __qeth_get_buffer(channel); | |
791 | spin_unlock_irqrestore(&channel->iob_lock, flags); | |
792 | return buffer; | |
793 | } | |
794 | ||
795 | struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *channel) | |
796 | { | |
797 | struct qeth_cmd_buffer *buffer; | |
798 | wait_event(channel->wait_q, | |
799 | ((buffer = qeth_get_buffer(channel)) != NULL)); | |
800 | return buffer; | |
801 | } | |
802 | EXPORT_SYMBOL_GPL(qeth_wait_for_buffer); | |
803 | ||
804 | void qeth_clear_cmd_buffers(struct qeth_channel *channel) | |
805 | { | |
806 | int cnt; | |
807 | ||
808 | for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) | |
809 | qeth_release_buffer(channel, &channel->iob[cnt]); | |
810 | channel->buf_no = 0; | |
811 | channel->io_buf_no = 0; | |
812 | } | |
813 | EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers); | |
814 | ||
815 | static void qeth_send_control_data_cb(struct qeth_channel *channel, | |
816 | struct qeth_cmd_buffer *iob) | |
817 | { | |
818 | struct qeth_card *card; | |
819 | struct qeth_reply *reply, *r; | |
820 | struct qeth_ipa_cmd *cmd; | |
821 | unsigned long flags; | |
822 | int keep_reply; | |
5113fec0 | 823 | int rc = 0; |
4a71df50 | 824 | |
4a71df50 | 825 | card = CARD_FROM_CDEV(channel->ccwdev); |
847a50fd | 826 | QETH_CARD_TEXT(card, 4, "sndctlcb"); |
5113fec0 UB |
827 | rc = qeth_check_idx_response(card, iob->data); |
828 | switch (rc) { | |
829 | case 0: | |
830 | break; | |
831 | case -EIO: | |
4a71df50 | 832 | qeth_clear_ipacmd_list(card); |
5113fec0 | 833 | qeth_schedule_recovery(card); |
01fc3e86 | 834 | /* fall through */ |
5113fec0 | 835 | default: |
4a71df50 FB |
836 | goto out; |
837 | } | |
838 | ||
839 | cmd = qeth_check_ipa_data(card, iob); | |
840 | if ((cmd == NULL) && (card->state != CARD_STATE_DOWN)) | |
841 | goto out; | |
842 | /*in case of OSN : check if cmd is set */ | |
843 | if (card->info.type == QETH_CARD_TYPE_OSN && | |
844 | cmd && | |
845 | cmd->hdr.command != IPA_CMD_STARTLAN && | |
846 | card->osn_info.assist_cb != NULL) { | |
847 | card->osn_info.assist_cb(card->dev, cmd); | |
848 | goto out; | |
849 | } | |
850 | ||
851 | spin_lock_irqsave(&card->lock, flags); | |
852 | list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) { | |
853 | if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) || | |
854 | ((cmd) && (reply->seqno == cmd->hdr.seqno))) { | |
855 | qeth_get_reply(reply); | |
856 | list_del_init(&reply->list); | |
857 | spin_unlock_irqrestore(&card->lock, flags); | |
858 | keep_reply = 0; | |
859 | if (reply->callback != NULL) { | |
860 | if (cmd) { | |
861 | reply->offset = (__u16)((char *)cmd - | |
862 | (char *)iob->data); | |
863 | keep_reply = reply->callback(card, | |
864 | reply, | |
865 | (unsigned long)cmd); | |
866 | } else | |
867 | keep_reply = reply->callback(card, | |
868 | reply, | |
869 | (unsigned long)iob); | |
870 | } | |
871 | if (cmd) | |
872 | reply->rc = (u16) cmd->hdr.return_code; | |
873 | else if (iob->rc) | |
874 | reply->rc = iob->rc; | |
875 | if (keep_reply) { | |
876 | spin_lock_irqsave(&card->lock, flags); | |
877 | list_add_tail(&reply->list, | |
878 | &card->cmd_waiter_list); | |
879 | spin_unlock_irqrestore(&card->lock, flags); | |
880 | } else { | |
881 | atomic_inc(&reply->received); | |
882 | wake_up(&reply->wait_q); | |
883 | } | |
884 | qeth_put_reply(reply); | |
885 | goto out; | |
886 | } | |
887 | } | |
888 | spin_unlock_irqrestore(&card->lock, flags); | |
889 | out: | |
890 | memcpy(&card->seqno.pdu_hdr_ack, | |
891 | QETH_PDU_HEADER_SEQ_NO(iob->data), | |
892 | QETH_SEQ_NO_LENGTH); | |
893 | qeth_release_buffer(channel, iob); | |
894 | } | |
895 | ||
896 | static int qeth_setup_channel(struct qeth_channel *channel) | |
897 | { | |
898 | int cnt; | |
899 | ||
d11ba0c4 | 900 | QETH_DBF_TEXT(SETUP, 2, "setupch"); |
4a71df50 | 901 | for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) { |
ae57b20a | 902 | channel->iob[cnt].data = |
b3332930 | 903 | kzalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL); |
4a71df50 FB |
904 | if (channel->iob[cnt].data == NULL) |
905 | break; | |
906 | channel->iob[cnt].state = BUF_STATE_FREE; | |
907 | channel->iob[cnt].channel = channel; | |
908 | channel->iob[cnt].callback = qeth_send_control_data_cb; | |
909 | channel->iob[cnt].rc = 0; | |
910 | } | |
911 | if (cnt < QETH_CMD_BUFFER_NO) { | |
912 | while (cnt-- > 0) | |
913 | kfree(channel->iob[cnt].data); | |
914 | return -ENOMEM; | |
915 | } | |
916 | channel->buf_no = 0; | |
917 | channel->io_buf_no = 0; | |
918 | atomic_set(&channel->irq_pending, 0); | |
919 | spin_lock_init(&channel->iob_lock); | |
920 | ||
921 | init_waitqueue_head(&channel->wait_q); | |
922 | return 0; | |
923 | } | |
924 | ||
925 | static int qeth_set_thread_start_bit(struct qeth_card *card, | |
926 | unsigned long thread) | |
927 | { | |
928 | unsigned long flags; | |
929 | ||
930 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
931 | if (!(card->thread_allowed_mask & thread) || | |
932 | (card->thread_start_mask & thread)) { | |
933 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
934 | return -EPERM; | |
935 | } | |
936 | card->thread_start_mask |= thread; | |
937 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
938 | return 0; | |
939 | } | |
940 | ||
941 | void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread) | |
942 | { | |
943 | unsigned long flags; | |
944 | ||
945 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
946 | card->thread_start_mask &= ~thread; | |
947 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
948 | wake_up(&card->wait_q); | |
949 | } | |
950 | EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit); | |
951 | ||
952 | void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread) | |
953 | { | |
954 | unsigned long flags; | |
955 | ||
956 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
957 | card->thread_running_mask &= ~thread; | |
958 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
959 | wake_up(&card->wait_q); | |
960 | } | |
961 | EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit); | |
962 | ||
963 | static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread) | |
964 | { | |
965 | unsigned long flags; | |
966 | int rc = 0; | |
967 | ||
968 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
969 | if (card->thread_start_mask & thread) { | |
970 | if ((card->thread_allowed_mask & thread) && | |
971 | !(card->thread_running_mask & thread)) { | |
972 | rc = 1; | |
973 | card->thread_start_mask &= ~thread; | |
974 | card->thread_running_mask |= thread; | |
975 | } else | |
976 | rc = -EPERM; | |
977 | } | |
978 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
979 | return rc; | |
980 | } | |
981 | ||
982 | int qeth_do_run_thread(struct qeth_card *card, unsigned long thread) | |
983 | { | |
984 | int rc = 0; | |
985 | ||
986 | wait_event(card->wait_q, | |
987 | (rc = __qeth_do_run_thread(card, thread)) >= 0); | |
988 | return rc; | |
989 | } | |
990 | EXPORT_SYMBOL_GPL(qeth_do_run_thread); | |
991 | ||
992 | void qeth_schedule_recovery(struct qeth_card *card) | |
993 | { | |
847a50fd | 994 | QETH_CARD_TEXT(card, 2, "startrec"); |
4a71df50 FB |
995 | if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0) |
996 | schedule_work(&card->kernel_thread_starter); | |
997 | } | |
998 | EXPORT_SYMBOL_GPL(qeth_schedule_recovery); | |
999 | ||
1000 | static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb) | |
1001 | { | |
1002 | int dstat, cstat; | |
1003 | char *sense; | |
847a50fd | 1004 | struct qeth_card *card; |
4a71df50 FB |
1005 | |
1006 | sense = (char *) irb->ecw; | |
23d805b6 PO |
1007 | cstat = irb->scsw.cmd.cstat; |
1008 | dstat = irb->scsw.cmd.dstat; | |
847a50fd | 1009 | card = CARD_FROM_CDEV(cdev); |
4a71df50 FB |
1010 | |
1011 | if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK | | |
1012 | SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK | | |
1013 | SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) { | |
847a50fd | 1014 | QETH_CARD_TEXT(card, 2, "CGENCHK"); |
74eacdb9 FB |
1015 | dev_warn(&cdev->dev, "The qeth device driver " |
1016 | "failed to recover an error on the device\n"); | |
5113fec0 | 1017 | QETH_DBF_MESSAGE(2, "%s check on device dstat=x%x, cstat=x%x\n", |
74eacdb9 | 1018 | dev_name(&cdev->dev), dstat, cstat); |
4a71df50 FB |
1019 | print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET, |
1020 | 16, 1, irb, 64, 1); | |
1021 | return 1; | |
1022 | } | |
1023 | ||
1024 | if (dstat & DEV_STAT_UNIT_CHECK) { | |
1025 | if (sense[SENSE_RESETTING_EVENT_BYTE] & | |
1026 | SENSE_RESETTING_EVENT_FLAG) { | |
847a50fd | 1027 | QETH_CARD_TEXT(card, 2, "REVIND"); |
4a71df50 FB |
1028 | return 1; |
1029 | } | |
1030 | if (sense[SENSE_COMMAND_REJECT_BYTE] & | |
1031 | SENSE_COMMAND_REJECT_FLAG) { | |
847a50fd | 1032 | QETH_CARD_TEXT(card, 2, "CMDREJi"); |
28a7e4c9 | 1033 | return 1; |
4a71df50 FB |
1034 | } |
1035 | if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) { | |
847a50fd | 1036 | QETH_CARD_TEXT(card, 2, "AFFE"); |
4a71df50 FB |
1037 | return 1; |
1038 | } | |
1039 | if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) { | |
847a50fd | 1040 | QETH_CARD_TEXT(card, 2, "ZEROSEN"); |
4a71df50 FB |
1041 | return 0; |
1042 | } | |
847a50fd | 1043 | QETH_CARD_TEXT(card, 2, "DGENCHK"); |
4a71df50 FB |
1044 | return 1; |
1045 | } | |
1046 | return 0; | |
1047 | } | |
1048 | ||
1049 | static long __qeth_check_irb_error(struct ccw_device *cdev, | |
1050 | unsigned long intparm, struct irb *irb) | |
1051 | { | |
847a50fd CO |
1052 | struct qeth_card *card; |
1053 | ||
1054 | card = CARD_FROM_CDEV(cdev); | |
1055 | ||
e95051ff | 1056 | if (!card || !IS_ERR(irb)) |
4a71df50 FB |
1057 | return 0; |
1058 | ||
1059 | switch (PTR_ERR(irb)) { | |
1060 | case -EIO: | |
74eacdb9 FB |
1061 | QETH_DBF_MESSAGE(2, "%s i/o-error on device\n", |
1062 | dev_name(&cdev->dev)); | |
847a50fd CO |
1063 | QETH_CARD_TEXT(card, 2, "ckirberr"); |
1064 | QETH_CARD_TEXT_(card, 2, " rc%d", -EIO); | |
4a71df50 FB |
1065 | break; |
1066 | case -ETIMEDOUT: | |
74eacdb9 FB |
1067 | dev_warn(&cdev->dev, "A hardware operation timed out" |
1068 | " on the device\n"); | |
847a50fd CO |
1069 | QETH_CARD_TEXT(card, 2, "ckirberr"); |
1070 | QETH_CARD_TEXT_(card, 2, " rc%d", -ETIMEDOUT); | |
4a71df50 | 1071 | if (intparm == QETH_RCD_PARM) { |
e95051ff | 1072 | if (card->data.ccwdev == cdev) { |
4a71df50 FB |
1073 | card->data.state = CH_STATE_DOWN; |
1074 | wake_up(&card->wait_q); | |
1075 | } | |
1076 | } | |
1077 | break; | |
1078 | default: | |
74eacdb9 FB |
1079 | QETH_DBF_MESSAGE(2, "%s unknown error %ld on device\n", |
1080 | dev_name(&cdev->dev), PTR_ERR(irb)); | |
847a50fd CO |
1081 | QETH_CARD_TEXT(card, 2, "ckirberr"); |
1082 | QETH_CARD_TEXT(card, 2, " rc???"); | |
4a71df50 FB |
1083 | } |
1084 | return PTR_ERR(irb); | |
1085 | } | |
1086 | ||
1087 | static void qeth_irq(struct ccw_device *cdev, unsigned long intparm, | |
1088 | struct irb *irb) | |
1089 | { | |
1090 | int rc; | |
1091 | int cstat, dstat; | |
1092 | struct qeth_cmd_buffer *buffer; | |
1093 | struct qeth_channel *channel; | |
1094 | struct qeth_card *card; | |
1095 | struct qeth_cmd_buffer *iob; | |
1096 | __u8 index; | |
1097 | ||
4a71df50 FB |
1098 | if (__qeth_check_irb_error(cdev, intparm, irb)) |
1099 | return; | |
23d805b6 PO |
1100 | cstat = irb->scsw.cmd.cstat; |
1101 | dstat = irb->scsw.cmd.dstat; | |
4a71df50 FB |
1102 | |
1103 | card = CARD_FROM_CDEV(cdev); | |
1104 | if (!card) | |
1105 | return; | |
1106 | ||
847a50fd CO |
1107 | QETH_CARD_TEXT(card, 5, "irq"); |
1108 | ||
4a71df50 FB |
1109 | if (card->read.ccwdev == cdev) { |
1110 | channel = &card->read; | |
847a50fd | 1111 | QETH_CARD_TEXT(card, 5, "read"); |
4a71df50 FB |
1112 | } else if (card->write.ccwdev == cdev) { |
1113 | channel = &card->write; | |
847a50fd | 1114 | QETH_CARD_TEXT(card, 5, "write"); |
4a71df50 FB |
1115 | } else { |
1116 | channel = &card->data; | |
847a50fd | 1117 | QETH_CARD_TEXT(card, 5, "data"); |
4a71df50 FB |
1118 | } |
1119 | atomic_set(&channel->irq_pending, 0); | |
1120 | ||
23d805b6 | 1121 | if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC)) |
4a71df50 FB |
1122 | channel->state = CH_STATE_STOPPED; |
1123 | ||
23d805b6 | 1124 | if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC)) |
4a71df50 FB |
1125 | channel->state = CH_STATE_HALTED; |
1126 | ||
1127 | /*let's wake up immediately on data channel*/ | |
1128 | if ((channel == &card->data) && (intparm != 0) && | |
1129 | (intparm != QETH_RCD_PARM)) | |
1130 | goto out; | |
1131 | ||
1132 | if (intparm == QETH_CLEAR_CHANNEL_PARM) { | |
847a50fd | 1133 | QETH_CARD_TEXT(card, 6, "clrchpar"); |
4a71df50 FB |
1134 | /* we don't have to handle this further */ |
1135 | intparm = 0; | |
1136 | } | |
1137 | if (intparm == QETH_HALT_CHANNEL_PARM) { | |
847a50fd | 1138 | QETH_CARD_TEXT(card, 6, "hltchpar"); |
4a71df50 FB |
1139 | /* we don't have to handle this further */ |
1140 | intparm = 0; | |
1141 | } | |
1142 | if ((dstat & DEV_STAT_UNIT_EXCEP) || | |
1143 | (dstat & DEV_STAT_UNIT_CHECK) || | |
1144 | (cstat)) { | |
1145 | if (irb->esw.esw0.erw.cons) { | |
74eacdb9 FB |
1146 | dev_warn(&channel->ccwdev->dev, |
1147 | "The qeth device driver failed to recover " | |
1148 | "an error on the device\n"); | |
1149 | QETH_DBF_MESSAGE(2, "%s sense data available. cstat " | |
1150 | "0x%X dstat 0x%X\n", | |
1151 | dev_name(&channel->ccwdev->dev), cstat, dstat); | |
4a71df50 FB |
1152 | print_hex_dump(KERN_WARNING, "qeth: irb ", |
1153 | DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1); | |
1154 | print_hex_dump(KERN_WARNING, "qeth: sense data ", | |
1155 | DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1); | |
1156 | } | |
1157 | if (intparm == QETH_RCD_PARM) { | |
1158 | channel->state = CH_STATE_DOWN; | |
1159 | goto out; | |
1160 | } | |
1161 | rc = qeth_get_problem(cdev, irb); | |
1162 | if (rc) { | |
28a7e4c9 | 1163 | qeth_clear_ipacmd_list(card); |
4a71df50 FB |
1164 | qeth_schedule_recovery(card); |
1165 | goto out; | |
1166 | } | |
1167 | } | |
1168 | ||
1169 | if (intparm == QETH_RCD_PARM) { | |
1170 | channel->state = CH_STATE_RCD_DONE; | |
1171 | goto out; | |
1172 | } | |
1173 | if (intparm) { | |
1174 | buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm); | |
1175 | buffer->state = BUF_STATE_PROCESSED; | |
1176 | } | |
1177 | if (channel == &card->data) | |
1178 | return; | |
1179 | if (channel == &card->read && | |
1180 | channel->state == CH_STATE_UP) | |
1181 | qeth_issue_next_read(card); | |
1182 | ||
1183 | iob = channel->iob; | |
1184 | index = channel->buf_no; | |
1185 | while (iob[index].state == BUF_STATE_PROCESSED) { | |
1186 | if (iob[index].callback != NULL) | |
1187 | iob[index].callback(channel, iob + index); | |
1188 | ||
1189 | index = (index + 1) % QETH_CMD_BUFFER_NO; | |
1190 | } | |
1191 | channel->buf_no = index; | |
1192 | out: | |
1193 | wake_up(&card->wait_q); | |
1194 | return; | |
1195 | } | |
1196 | ||
b3332930 | 1197 | static void qeth_notify_skbs(struct qeth_qdio_out_q *q, |
0da9581d | 1198 | struct qeth_qdio_out_buffer *buf, |
b3332930 | 1199 | enum iucv_tx_notify notification) |
4a71df50 | 1200 | { |
4a71df50 FB |
1201 | struct sk_buff *skb; |
1202 | ||
b3332930 FB |
1203 | if (skb_queue_empty(&buf->skb_list)) |
1204 | goto out; | |
1205 | skb = skb_peek(&buf->skb_list); | |
1206 | while (skb) { | |
1207 | QETH_CARD_TEXT_(q->card, 5, "skbn%d", notification); | |
1208 | QETH_CARD_TEXT_(q->card, 5, "%lx", (long) skb); | |
6bee4e26 | 1209 | if (be16_to_cpu(skb->protocol) == ETH_P_AF_IUCV) { |
b3332930 FB |
1210 | if (skb->sk) { |
1211 | struct iucv_sock *iucv = iucv_sk(skb->sk); | |
1212 | iucv->sk_txnotify(skb, notification); | |
1213 | } | |
1214 | } | |
1215 | if (skb_queue_is_last(&buf->skb_list, skb)) | |
1216 | skb = NULL; | |
1217 | else | |
1218 | skb = skb_queue_next(&buf->skb_list, skb); | |
1219 | } | |
1220 | out: | |
1221 | return; | |
1222 | } | |
1223 | ||
1224 | static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf) | |
1225 | { | |
1226 | struct sk_buff *skb; | |
72861ae7 EL |
1227 | struct iucv_sock *iucv; |
1228 | int notify_general_error = 0; | |
1229 | ||
1230 | if (atomic_read(&buf->state) == QETH_QDIO_BUF_PENDING) | |
1231 | notify_general_error = 1; | |
1232 | ||
1233 | /* release may never happen from within CQ tasklet scope */ | |
18af5c17 | 1234 | WARN_ON_ONCE(atomic_read(&buf->state) == QETH_QDIO_BUF_IN_CQ); |
4a71df50 | 1235 | |
b67d801f UB |
1236 | skb = skb_dequeue(&buf->skb_list); |
1237 | while (skb) { | |
b3332930 FB |
1238 | QETH_CARD_TEXT(buf->q->card, 5, "skbr"); |
1239 | QETH_CARD_TEXT_(buf->q->card, 5, "%lx", (long) skb); | |
6bee4e26 HW |
1240 | if (notify_general_error && |
1241 | be16_to_cpu(skb->protocol) == ETH_P_AF_IUCV) { | |
72861ae7 EL |
1242 | if (skb->sk) { |
1243 | iucv = iucv_sk(skb->sk); | |
1244 | iucv->sk_txnotify(skb, TX_NOTIFY_GENERALERROR); | |
1245 | } | |
1246 | } | |
63354797 | 1247 | refcount_dec(&skb->users); |
b67d801f | 1248 | dev_kfree_skb_any(skb); |
4a71df50 FB |
1249 | skb = skb_dequeue(&buf->skb_list); |
1250 | } | |
b3332930 FB |
1251 | } |
1252 | ||
1253 | static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, | |
1254 | struct qeth_qdio_out_buffer *buf, | |
1255 | enum qeth_qdio_buffer_states newbufstate) | |
1256 | { | |
1257 | int i; | |
1258 | ||
1259 | /* is PCI flag set on buffer? */ | |
1260 | if (buf->buffer->element[0].sflags & SBAL_SFLAGS0_PCI_REQ) | |
1261 | atomic_dec(&queue->set_pci_flags_count); | |
1262 | ||
1263 | if (newbufstate == QETH_QDIO_BUF_EMPTY) { | |
1264 | qeth_release_skbs(buf); | |
1265 | } | |
4a71df50 | 1266 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) { |
683d718a FB |
1267 | if (buf->buffer->element[i].addr && buf->is_header[i]) |
1268 | kmem_cache_free(qeth_core_header_cache, | |
1269 | buf->buffer->element[i].addr); | |
1270 | buf->is_header[i] = 0; | |
4a71df50 FB |
1271 | buf->buffer->element[i].length = 0; |
1272 | buf->buffer->element[i].addr = NULL; | |
3ec90878 JG |
1273 | buf->buffer->element[i].eflags = 0; |
1274 | buf->buffer->element[i].sflags = 0; | |
4a71df50 | 1275 | } |
3ec90878 JG |
1276 | buf->buffer->element[15].eflags = 0; |
1277 | buf->buffer->element[15].sflags = 0; | |
4a71df50 | 1278 | buf->next_element_to_fill = 0; |
0da9581d EL |
1279 | atomic_set(&buf->state, newbufstate); |
1280 | } | |
1281 | ||
1282 | static void qeth_clear_outq_buffers(struct qeth_qdio_out_q *q, int free) | |
1283 | { | |
1284 | int j; | |
1285 | ||
1286 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { | |
1287 | if (!q->bufs[j]) | |
1288 | continue; | |
72861ae7 | 1289 | qeth_cleanup_handled_pending(q, j, 1); |
0da9581d EL |
1290 | qeth_clear_output_buffer(q, q->bufs[j], QETH_QDIO_BUF_EMPTY); |
1291 | if (free) { | |
1292 | kmem_cache_free(qeth_qdio_outbuf_cache, q->bufs[j]); | |
1293 | q->bufs[j] = NULL; | |
1294 | } | |
1295 | } | |
4a71df50 FB |
1296 | } |
1297 | ||
1298 | void qeth_clear_qdio_buffers(struct qeth_card *card) | |
1299 | { | |
0da9581d | 1300 | int i; |
4a71df50 | 1301 | |
847a50fd | 1302 | QETH_CARD_TEXT(card, 2, "clearqdbf"); |
4a71df50 | 1303 | /* clear outbound buffers to free skbs */ |
0da9581d | 1304 | for (i = 0; i < card->qdio.no_out_queues; ++i) { |
4a71df50 | 1305 | if (card->qdio.out_qs[i]) { |
0da9581d | 1306 | qeth_clear_outq_buffers(card->qdio.out_qs[i], 0); |
4a71df50 | 1307 | } |
0da9581d | 1308 | } |
4a71df50 FB |
1309 | } |
1310 | EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers); | |
1311 | ||
1312 | static void qeth_free_buffer_pool(struct qeth_card *card) | |
1313 | { | |
1314 | struct qeth_buffer_pool_entry *pool_entry, *tmp; | |
1315 | int i = 0; | |
4a71df50 FB |
1316 | list_for_each_entry_safe(pool_entry, tmp, |
1317 | &card->qdio.init_pool.entry_list, init_list){ | |
1318 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) | |
1319 | free_page((unsigned long)pool_entry->elements[i]); | |
1320 | list_del(&pool_entry->init_list); | |
1321 | kfree(pool_entry); | |
1322 | } | |
1323 | } | |
1324 | ||
4a71df50 FB |
1325 | static void qeth_clean_channel(struct qeth_channel *channel) |
1326 | { | |
1327 | int cnt; | |
1328 | ||
d11ba0c4 | 1329 | QETH_DBF_TEXT(SETUP, 2, "freech"); |
4a71df50 FB |
1330 | for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) |
1331 | kfree(channel->iob[cnt].data); | |
1332 | } | |
1333 | ||
725b9c04 SO |
1334 | static void qeth_set_single_write_queues(struct qeth_card *card) |
1335 | { | |
1336 | if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) && | |
1337 | (card->qdio.no_out_queues == 4)) | |
1338 | qeth_free_qdio_buffers(card); | |
1339 | ||
1340 | card->qdio.no_out_queues = 1; | |
1341 | if (card->qdio.default_out_queue != 0) | |
1342 | dev_info(&card->gdev->dev, "Priority Queueing not supported\n"); | |
1343 | ||
1344 | card->qdio.default_out_queue = 0; | |
1345 | } | |
1346 | ||
1347 | static void qeth_set_multiple_write_queues(struct qeth_card *card) | |
1348 | { | |
1349 | if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) && | |
1350 | (card->qdio.no_out_queues == 1)) { | |
1351 | qeth_free_qdio_buffers(card); | |
1352 | card->qdio.default_out_queue = 2; | |
1353 | } | |
1354 | card->qdio.no_out_queues = 4; | |
1355 | } | |
1356 | ||
1357 | static void qeth_update_from_chp_desc(struct qeth_card *card) | |
4a71df50 | 1358 | { |
4a71df50 | 1359 | struct ccw_device *ccwdev; |
2bf29df7 | 1360 | struct channel_path_desc *chp_dsc; |
4a71df50 | 1361 | |
5113fec0 | 1362 | QETH_DBF_TEXT(SETUP, 2, "chp_desc"); |
4a71df50 FB |
1363 | |
1364 | ccwdev = card->data.ccwdev; | |
725b9c04 SO |
1365 | chp_dsc = ccw_device_get_chp_desc(ccwdev, 0); |
1366 | if (!chp_dsc) | |
1367 | goto out; | |
1368 | ||
1369 | card->info.func_level = 0x4100 + chp_dsc->desc; | |
1370 | if (card->info.type == QETH_CARD_TYPE_IQD) | |
1371 | goto out; | |
1372 | ||
1373 | /* CHPP field bit 6 == 1 -> single queue */ | |
1374 | if ((chp_dsc->chpp & 0x02) == 0x02) | |
1375 | qeth_set_single_write_queues(card); | |
1376 | else | |
1377 | qeth_set_multiple_write_queues(card); | |
1378 | out: | |
1379 | kfree(chp_dsc); | |
5113fec0 UB |
1380 | QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues); |
1381 | QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level); | |
4a71df50 FB |
1382 | } |
1383 | ||
1384 | static void qeth_init_qdio_info(struct qeth_card *card) | |
1385 | { | |
d11ba0c4 | 1386 | QETH_DBF_TEXT(SETUP, 4, "intqdinf"); |
4a71df50 FB |
1387 | atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); |
1388 | /* inbound */ | |
ed2e93ef | 1389 | card->qdio.no_in_queues = 1; |
4a71df50 | 1390 | card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT; |
dcf4ae2d FB |
1391 | if (card->info.type == QETH_CARD_TYPE_IQD) |
1392 | card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_HSDEFAULT; | |
1393 | else | |
1394 | card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT; | |
4a71df50 FB |
1395 | card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count; |
1396 | INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list); | |
1397 | INIT_LIST_HEAD(&card->qdio.init_pool.entry_list); | |
1398 | } | |
1399 | ||
1400 | static void qeth_set_intial_options(struct qeth_card *card) | |
1401 | { | |
1402 | card->options.route4.type = NO_ROUTER; | |
1403 | card->options.route6.type = NO_ROUTER; | |
4a71df50 | 1404 | card->options.fake_broadcast = 0; |
4a71df50 FB |
1405 | card->options.performance_stats = 0; |
1406 | card->options.rx_sg_cb = QETH_RX_SG_CB; | |
d64ecc22 | 1407 | card->options.isolation = ISOLATION_MODE_NONE; |
0da9581d | 1408 | card->options.cq = QETH_CQ_DISABLED; |
4a71df50 FB |
1409 | } |
1410 | ||
1411 | static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread) | |
1412 | { | |
1413 | unsigned long flags; | |
1414 | int rc = 0; | |
1415 | ||
1416 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
847a50fd | 1417 | QETH_CARD_TEXT_(card, 4, " %02x%02x%02x", |
4a71df50 FB |
1418 | (u8) card->thread_start_mask, |
1419 | (u8) card->thread_allowed_mask, | |
1420 | (u8) card->thread_running_mask); | |
1421 | rc = (card->thread_start_mask & thread); | |
1422 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
1423 | return rc; | |
1424 | } | |
1425 | ||
1426 | static void qeth_start_kernel_thread(struct work_struct *work) | |
1427 | { | |
3f36b890 | 1428 | struct task_struct *ts; |
4a71df50 FB |
1429 | struct qeth_card *card = container_of(work, struct qeth_card, |
1430 | kernel_thread_starter); | |
847a50fd | 1431 | QETH_CARD_TEXT(card , 2, "strthrd"); |
4a71df50 FB |
1432 | |
1433 | if (card->read.state != CH_STATE_UP && | |
1434 | card->write.state != CH_STATE_UP) | |
1435 | return; | |
3f36b890 | 1436 | if (qeth_do_start_thread(card, QETH_RECOVER_THREAD)) { |
c041f2d4 | 1437 | ts = kthread_run(card->discipline->recover, (void *)card, |
4a71df50 | 1438 | "qeth_recover"); |
3f36b890 FB |
1439 | if (IS_ERR(ts)) { |
1440 | qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); | |
1441 | qeth_clear_thread_running_bit(card, | |
1442 | QETH_RECOVER_THREAD); | |
1443 | } | |
1444 | } | |
4a71df50 FB |
1445 | } |
1446 | ||
bca51650 | 1447 | static void qeth_buffer_reclaim_work(struct work_struct *); |
4a71df50 FB |
1448 | static int qeth_setup_card(struct qeth_card *card) |
1449 | { | |
1450 | ||
d11ba0c4 PT |
1451 | QETH_DBF_TEXT(SETUP, 2, "setupcrd"); |
1452 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 FB |
1453 | |
1454 | card->read.state = CH_STATE_DOWN; | |
1455 | card->write.state = CH_STATE_DOWN; | |
1456 | card->data.state = CH_STATE_DOWN; | |
1457 | card->state = CARD_STATE_DOWN; | |
1458 | card->lan_online = 0; | |
908abbb5 | 1459 | card->read_or_write_problem = 0; |
4a71df50 FB |
1460 | card->dev = NULL; |
1461 | spin_lock_init(&card->vlanlock); | |
1462 | spin_lock_init(&card->mclock); | |
4a71df50 FB |
1463 | spin_lock_init(&card->lock); |
1464 | spin_lock_init(&card->ip_lock); | |
1465 | spin_lock_init(&card->thread_mask_lock); | |
c4949f07 | 1466 | mutex_init(&card->conf_mutex); |
9dc48ccc | 1467 | mutex_init(&card->discipline_mutex); |
4a71df50 FB |
1468 | card->thread_start_mask = 0; |
1469 | card->thread_allowed_mask = 0; | |
1470 | card->thread_running_mask = 0; | |
1471 | INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread); | |
4a71df50 FB |
1472 | INIT_LIST_HEAD(&card->cmd_waiter_list); |
1473 | init_waitqueue_head(&card->wait_q); | |
25985edc | 1474 | /* initial options */ |
4a71df50 FB |
1475 | qeth_set_intial_options(card); |
1476 | /* IP address takeover */ | |
1477 | INIT_LIST_HEAD(&card->ipato.entries); | |
1478 | card->ipato.enabled = 0; | |
1479 | card->ipato.invert4 = 0; | |
1480 | card->ipato.invert6 = 0; | |
1481 | /* init QDIO stuff */ | |
1482 | qeth_init_qdio_info(card); | |
b3332930 | 1483 | INIT_DELAYED_WORK(&card->buffer_reclaim_work, qeth_buffer_reclaim_work); |
0f54761d | 1484 | INIT_WORK(&card->close_dev_work, qeth_close_dev_handler); |
4a71df50 FB |
1485 | return 0; |
1486 | } | |
1487 | ||
6bcac508 MS |
1488 | static void qeth_core_sl_print(struct seq_file *m, struct service_level *slr) |
1489 | { | |
1490 | struct qeth_card *card = container_of(slr, struct qeth_card, | |
1491 | qeth_service_level); | |
0d788c7d KDW |
1492 | if (card->info.mcl_level[0]) |
1493 | seq_printf(m, "qeth: %s firmware level %s\n", | |
1494 | CARD_BUS_ID(card), card->info.mcl_level); | |
6bcac508 MS |
1495 | } |
1496 | ||
4a71df50 FB |
1497 | static struct qeth_card *qeth_alloc_card(void) |
1498 | { | |
1499 | struct qeth_card *card; | |
1500 | ||
d11ba0c4 | 1501 | QETH_DBF_TEXT(SETUP, 2, "alloccrd"); |
4a71df50 FB |
1502 | card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL); |
1503 | if (!card) | |
76b11f8e | 1504 | goto out; |
d11ba0c4 | 1505 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); |
76b11f8e UB |
1506 | if (qeth_setup_channel(&card->read)) |
1507 | goto out_ip; | |
1508 | if (qeth_setup_channel(&card->write)) | |
1509 | goto out_channel; | |
4a71df50 | 1510 | card->options.layer2 = -1; |
6bcac508 MS |
1511 | card->qeth_service_level.seq_print = qeth_core_sl_print; |
1512 | register_service_level(&card->qeth_service_level); | |
4a71df50 | 1513 | return card; |
76b11f8e UB |
1514 | |
1515 | out_channel: | |
1516 | qeth_clean_channel(&card->read); | |
1517 | out_ip: | |
76b11f8e UB |
1518 | kfree(card); |
1519 | out: | |
1520 | return NULL; | |
4a71df50 FB |
1521 | } |
1522 | ||
ed2e93ef | 1523 | static void qeth_determine_card_type(struct qeth_card *card) |
4a71df50 | 1524 | { |
d11ba0c4 | 1525 | QETH_DBF_TEXT(SETUP, 2, "detcdtyp"); |
4a71df50 FB |
1526 | |
1527 | card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT; | |
1528 | card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; | |
ed2e93ef JW |
1529 | card->info.type = CARD_RDEV(card)->id.driver_info; |
1530 | card->qdio.no_out_queues = QETH_MAX_QUEUES; | |
1531 | if (card->info.type == QETH_CARD_TYPE_IQD) | |
1532 | card->info.is_multicast_different = 0x0103; | |
1533 | qeth_update_from_chp_desc(card); | |
4a71df50 FB |
1534 | } |
1535 | ||
1536 | static int qeth_clear_channel(struct qeth_channel *channel) | |
1537 | { | |
1538 | unsigned long flags; | |
1539 | struct qeth_card *card; | |
1540 | int rc; | |
1541 | ||
4a71df50 | 1542 | card = CARD_FROM_CDEV(channel->ccwdev); |
847a50fd | 1543 | QETH_CARD_TEXT(card, 3, "clearch"); |
4a71df50 FB |
1544 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
1545 | rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM); | |
1546 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); | |
1547 | ||
1548 | if (rc) | |
1549 | return rc; | |
1550 | rc = wait_event_interruptible_timeout(card->wait_q, | |
1551 | channel->state == CH_STATE_STOPPED, QETH_TIMEOUT); | |
1552 | if (rc == -ERESTARTSYS) | |
1553 | return rc; | |
1554 | if (channel->state != CH_STATE_STOPPED) | |
1555 | return -ETIME; | |
1556 | channel->state = CH_STATE_DOWN; | |
1557 | return 0; | |
1558 | } | |
1559 | ||
1560 | static int qeth_halt_channel(struct qeth_channel *channel) | |
1561 | { | |
1562 | unsigned long flags; | |
1563 | struct qeth_card *card; | |
1564 | int rc; | |
1565 | ||
4a71df50 | 1566 | card = CARD_FROM_CDEV(channel->ccwdev); |
847a50fd | 1567 | QETH_CARD_TEXT(card, 3, "haltch"); |
4a71df50 FB |
1568 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
1569 | rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM); | |
1570 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); | |
1571 | ||
1572 | if (rc) | |
1573 | return rc; | |
1574 | rc = wait_event_interruptible_timeout(card->wait_q, | |
1575 | channel->state == CH_STATE_HALTED, QETH_TIMEOUT); | |
1576 | if (rc == -ERESTARTSYS) | |
1577 | return rc; | |
1578 | if (channel->state != CH_STATE_HALTED) | |
1579 | return -ETIME; | |
1580 | return 0; | |
1581 | } | |
1582 | ||
1583 | static int qeth_halt_channels(struct qeth_card *card) | |
1584 | { | |
1585 | int rc1 = 0, rc2 = 0, rc3 = 0; | |
1586 | ||
847a50fd | 1587 | QETH_CARD_TEXT(card, 3, "haltchs"); |
4a71df50 FB |
1588 | rc1 = qeth_halt_channel(&card->read); |
1589 | rc2 = qeth_halt_channel(&card->write); | |
1590 | rc3 = qeth_halt_channel(&card->data); | |
1591 | if (rc1) | |
1592 | return rc1; | |
1593 | if (rc2) | |
1594 | return rc2; | |
1595 | return rc3; | |
1596 | } | |
1597 | ||
1598 | static int qeth_clear_channels(struct qeth_card *card) | |
1599 | { | |
1600 | int rc1 = 0, rc2 = 0, rc3 = 0; | |
1601 | ||
847a50fd | 1602 | QETH_CARD_TEXT(card, 3, "clearchs"); |
4a71df50 FB |
1603 | rc1 = qeth_clear_channel(&card->read); |
1604 | rc2 = qeth_clear_channel(&card->write); | |
1605 | rc3 = qeth_clear_channel(&card->data); | |
1606 | if (rc1) | |
1607 | return rc1; | |
1608 | if (rc2) | |
1609 | return rc2; | |
1610 | return rc3; | |
1611 | } | |
1612 | ||
1613 | static int qeth_clear_halt_card(struct qeth_card *card, int halt) | |
1614 | { | |
1615 | int rc = 0; | |
1616 | ||
847a50fd | 1617 | QETH_CARD_TEXT(card, 3, "clhacrd"); |
4a71df50 FB |
1618 | |
1619 | if (halt) | |
1620 | rc = qeth_halt_channels(card); | |
1621 | if (rc) | |
1622 | return rc; | |
1623 | return qeth_clear_channels(card); | |
1624 | } | |
1625 | ||
1626 | int qeth_qdio_clear_card(struct qeth_card *card, int use_halt) | |
1627 | { | |
1628 | int rc = 0; | |
1629 | ||
847a50fd | 1630 | QETH_CARD_TEXT(card, 3, "qdioclr"); |
4a71df50 FB |
1631 | switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED, |
1632 | QETH_QDIO_CLEANING)) { | |
1633 | case QETH_QDIO_ESTABLISHED: | |
1634 | if (card->info.type == QETH_CARD_TYPE_IQD) | |
cc961d40 | 1635 | rc = qdio_shutdown(CARD_DDEV(card), |
4a71df50 FB |
1636 | QDIO_FLAG_CLEANUP_USING_HALT); |
1637 | else | |
cc961d40 | 1638 | rc = qdio_shutdown(CARD_DDEV(card), |
4a71df50 FB |
1639 | QDIO_FLAG_CLEANUP_USING_CLEAR); |
1640 | if (rc) | |
847a50fd | 1641 | QETH_CARD_TEXT_(card, 3, "1err%d", rc); |
4a71df50 FB |
1642 | atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); |
1643 | break; | |
1644 | case QETH_QDIO_CLEANING: | |
1645 | return rc; | |
1646 | default: | |
1647 | break; | |
1648 | } | |
1649 | rc = qeth_clear_halt_card(card, use_halt); | |
1650 | if (rc) | |
847a50fd | 1651 | QETH_CARD_TEXT_(card, 3, "2err%d", rc); |
4a71df50 FB |
1652 | card->state = CARD_STATE_DOWN; |
1653 | return rc; | |
1654 | } | |
1655 | EXPORT_SYMBOL_GPL(qeth_qdio_clear_card); | |
1656 | ||
1657 | static int qeth_read_conf_data(struct qeth_card *card, void **buffer, | |
1658 | int *length) | |
1659 | { | |
1660 | struct ciw *ciw; | |
1661 | char *rcd_buf; | |
1662 | int ret; | |
1663 | struct qeth_channel *channel = &card->data; | |
1664 | unsigned long flags; | |
1665 | ||
1666 | /* | |
1667 | * scan for RCD command in extended SenseID data | |
1668 | */ | |
1669 | ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD); | |
1670 | if (!ciw || ciw->cmd == 0) | |
1671 | return -EOPNOTSUPP; | |
1672 | rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA); | |
1673 | if (!rcd_buf) | |
1674 | return -ENOMEM; | |
1675 | ||
1676 | channel->ccw.cmd_code = ciw->cmd; | |
1677 | channel->ccw.cda = (__u32) __pa(rcd_buf); | |
1678 | channel->ccw.count = ciw->count; | |
1679 | channel->ccw.flags = CCW_FLAG_SLI; | |
1680 | channel->state = CH_STATE_RCD; | |
1681 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); | |
1682 | ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw, | |
1683 | QETH_RCD_PARM, LPM_ANYPATH, 0, | |
1684 | QETH_RCD_TIMEOUT); | |
1685 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); | |
1686 | if (!ret) | |
1687 | wait_event(card->wait_q, | |
1688 | (channel->state == CH_STATE_RCD_DONE || | |
1689 | channel->state == CH_STATE_DOWN)); | |
1690 | if (channel->state == CH_STATE_DOWN) | |
1691 | ret = -EIO; | |
1692 | else | |
1693 | channel->state = CH_STATE_DOWN; | |
1694 | if (ret) { | |
1695 | kfree(rcd_buf); | |
1696 | *buffer = NULL; | |
1697 | *length = 0; | |
1698 | } else { | |
1699 | *length = ciw->count; | |
1700 | *buffer = rcd_buf; | |
1701 | } | |
1702 | return ret; | |
1703 | } | |
1704 | ||
a60389ab | 1705 | static void qeth_configure_unitaddr(struct qeth_card *card, char *prcd) |
4a71df50 | 1706 | { |
a60389ab | 1707 | QETH_DBF_TEXT(SETUP, 2, "cfgunit"); |
4a71df50 FB |
1708 | card->info.chpid = prcd[30]; |
1709 | card->info.unit_addr2 = prcd[31]; | |
1710 | card->info.cula = prcd[63]; | |
1711 | card->info.guestlan = ((prcd[0x10] == _ascebc['V']) && | |
1712 | (prcd[0x11] == _ascebc['M'])); | |
a60389ab EL |
1713 | } |
1714 | ||
c70eb09d JW |
1715 | /* Determine whether the device requires a specific layer discipline */ |
1716 | static enum qeth_discipline_id qeth_enforce_discipline(struct qeth_card *card) | |
1717 | { | |
1718 | if (card->info.type == QETH_CARD_TYPE_OSM || | |
1719 | card->info.type == QETH_CARD_TYPE_OSN) { | |
1720 | QETH_DBF_TEXT(SETUP, 3, "force l2"); | |
1721 | return QETH_DISCIPLINE_LAYER2; | |
1722 | } | |
1723 | ||
1724 | /* virtual HiperSocket is L3 only: */ | |
1725 | if (card->info.guestlan && card->info.type == QETH_CARD_TYPE_IQD) { | |
1726 | QETH_DBF_TEXT(SETUP, 3, "force l3"); | |
1727 | return QETH_DISCIPLINE_LAYER3; | |
1728 | } | |
1729 | ||
1730 | QETH_DBF_TEXT(SETUP, 3, "force no"); | |
1731 | return QETH_DISCIPLINE_UNDETERMINED; | |
1732 | } | |
1733 | ||
a60389ab EL |
1734 | static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd) |
1735 | { | |
1736 | QETH_DBF_TEXT(SETUP, 2, "cfgblkt"); | |
1737 | ||
e6e056ba | 1738 | if (prcd[74] == 0xF0 && prcd[75] == 0xF0 && |
a0c98523 | 1739 | prcd[76] >= 0xF1 && prcd[76] <= 0xF4) { |
a60389ab EL |
1740 | card->info.blkt.time_total = 0; |
1741 | card->info.blkt.inter_packet = 0; | |
1742 | card->info.blkt.inter_packet_jumbo = 0; | |
a0c98523 UB |
1743 | } else { |
1744 | card->info.blkt.time_total = 250; | |
1745 | card->info.blkt.inter_packet = 5; | |
1746 | card->info.blkt.inter_packet_jumbo = 15; | |
a60389ab | 1747 | } |
4a71df50 FB |
1748 | } |
1749 | ||
1750 | static void qeth_init_tokens(struct qeth_card *card) | |
1751 | { | |
1752 | card->token.issuer_rm_w = 0x00010103UL; | |
1753 | card->token.cm_filter_w = 0x00010108UL; | |
1754 | card->token.cm_connection_w = 0x0001010aUL; | |
1755 | card->token.ulp_filter_w = 0x0001010bUL; | |
1756 | card->token.ulp_connection_w = 0x0001010dUL; | |
1757 | } | |
1758 | ||
1759 | static void qeth_init_func_level(struct qeth_card *card) | |
1760 | { | |
5113fec0 UB |
1761 | switch (card->info.type) { |
1762 | case QETH_CARD_TYPE_IQD: | |
6298263a | 1763 | card->info.func_level = QETH_IDX_FUNC_LEVEL_IQD; |
5113fec0 UB |
1764 | break; |
1765 | case QETH_CARD_TYPE_OSD: | |
0132951e | 1766 | case QETH_CARD_TYPE_OSN: |
5113fec0 UB |
1767 | card->info.func_level = QETH_IDX_FUNC_LEVEL_OSD; |
1768 | break; | |
1769 | default: | |
1770 | break; | |
4a71df50 FB |
1771 | } |
1772 | } | |
1773 | ||
4a71df50 FB |
1774 | static int qeth_idx_activate_get_answer(struct qeth_channel *channel, |
1775 | void (*idx_reply_cb)(struct qeth_channel *, | |
1776 | struct qeth_cmd_buffer *)) | |
1777 | { | |
1778 | struct qeth_cmd_buffer *iob; | |
1779 | unsigned long flags; | |
1780 | int rc; | |
1781 | struct qeth_card *card; | |
1782 | ||
d11ba0c4 | 1783 | QETH_DBF_TEXT(SETUP, 2, "idxanswr"); |
4a71df50 FB |
1784 | card = CARD_FROM_CDEV(channel->ccwdev); |
1785 | iob = qeth_get_buffer(channel); | |
1aec42bc TR |
1786 | if (!iob) |
1787 | return -ENOMEM; | |
4a71df50 FB |
1788 | iob->callback = idx_reply_cb; |
1789 | memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1)); | |
1790 | channel->ccw.count = QETH_BUFSIZE; | |
1791 | channel->ccw.cda = (__u32) __pa(iob->data); | |
1792 | ||
1793 | wait_event(card->wait_q, | |
1794 | atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); | |
d11ba0c4 | 1795 | QETH_DBF_TEXT(SETUP, 6, "noirqpnd"); |
4a71df50 FB |
1796 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
1797 | rc = ccw_device_start(channel->ccwdev, | |
1798 | &channel->ccw, (addr_t) iob, 0, 0); | |
1799 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); | |
1800 | ||
1801 | if (rc) { | |
14cc21b6 | 1802 | QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc); |
d11ba0c4 | 1803 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
4a71df50 FB |
1804 | atomic_set(&channel->irq_pending, 0); |
1805 | wake_up(&card->wait_q); | |
1806 | return rc; | |
1807 | } | |
1808 | rc = wait_event_interruptible_timeout(card->wait_q, | |
1809 | channel->state == CH_STATE_UP, QETH_TIMEOUT); | |
1810 | if (rc == -ERESTARTSYS) | |
1811 | return rc; | |
1812 | if (channel->state != CH_STATE_UP) { | |
1813 | rc = -ETIME; | |
d11ba0c4 | 1814 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
4a71df50 FB |
1815 | qeth_clear_cmd_buffers(channel); |
1816 | } else | |
1817 | rc = 0; | |
1818 | return rc; | |
1819 | } | |
1820 | ||
1821 | static int qeth_idx_activate_channel(struct qeth_channel *channel, | |
1822 | void (*idx_reply_cb)(struct qeth_channel *, | |
1823 | struct qeth_cmd_buffer *)) | |
1824 | { | |
1825 | struct qeth_card *card; | |
1826 | struct qeth_cmd_buffer *iob; | |
1827 | unsigned long flags; | |
1828 | __u16 temp; | |
1829 | __u8 tmp; | |
1830 | int rc; | |
f06f6f32 | 1831 | struct ccw_dev_id temp_devid; |
4a71df50 FB |
1832 | |
1833 | card = CARD_FROM_CDEV(channel->ccwdev); | |
1834 | ||
d11ba0c4 | 1835 | QETH_DBF_TEXT(SETUP, 2, "idxactch"); |
4a71df50 FB |
1836 | |
1837 | iob = qeth_get_buffer(channel); | |
1aec42bc TR |
1838 | if (!iob) |
1839 | return -ENOMEM; | |
4a71df50 FB |
1840 | iob->callback = idx_reply_cb; |
1841 | memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1)); | |
1842 | channel->ccw.count = IDX_ACTIVATE_SIZE; | |
1843 | channel->ccw.cda = (__u32) __pa(iob->data); | |
1844 | if (channel == &card->write) { | |
1845 | memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE); | |
1846 | memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), | |
1847 | &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); | |
1848 | card->seqno.trans_hdr++; | |
1849 | } else { | |
1850 | memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE); | |
1851 | memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), | |
1852 | &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); | |
1853 | } | |
1854 | tmp = ((__u8)card->info.portno) | 0x80; | |
1855 | memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1); | |
1856 | memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), | |
1857 | &card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH); | |
1858 | memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data), | |
1859 | &card->info.func_level, sizeof(__u16)); | |
f06f6f32 CH |
1860 | ccw_device_get_id(CARD_DDEV(card), &temp_devid); |
1861 | memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp_devid.devno, 2); | |
4a71df50 FB |
1862 | temp = (card->info.cula << 8) + card->info.unit_addr2; |
1863 | memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2); | |
1864 | ||
1865 | wait_event(card->wait_q, | |
1866 | atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); | |
d11ba0c4 | 1867 | QETH_DBF_TEXT(SETUP, 6, "noirqpnd"); |
4a71df50 FB |
1868 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
1869 | rc = ccw_device_start(channel->ccwdev, | |
1870 | &channel->ccw, (addr_t) iob, 0, 0); | |
1871 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); | |
1872 | ||
1873 | if (rc) { | |
14cc21b6 FB |
1874 | QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n", |
1875 | rc); | |
d11ba0c4 | 1876 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
1877 | atomic_set(&channel->irq_pending, 0); |
1878 | wake_up(&card->wait_q); | |
1879 | return rc; | |
1880 | } | |
1881 | rc = wait_event_interruptible_timeout(card->wait_q, | |
1882 | channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT); | |
1883 | if (rc == -ERESTARTSYS) | |
1884 | return rc; | |
1885 | if (channel->state != CH_STATE_ACTIVATING) { | |
74eacdb9 FB |
1886 | dev_warn(&channel->ccwdev->dev, "The qeth device driver" |
1887 | " failed to recover an error on the device\n"); | |
1888 | QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n", | |
1889 | dev_name(&channel->ccwdev->dev)); | |
d11ba0c4 | 1890 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME); |
4a71df50 FB |
1891 | qeth_clear_cmd_buffers(channel); |
1892 | return -ETIME; | |
1893 | } | |
1894 | return qeth_idx_activate_get_answer(channel, idx_reply_cb); | |
1895 | } | |
1896 | ||
1897 | static int qeth_peer_func_level(int level) | |
1898 | { | |
1899 | if ((level & 0xff) == 8) | |
1900 | return (level & 0xff) + 0x400; | |
1901 | if (((level >> 8) & 3) == 1) | |
1902 | return (level & 0xff) + 0x200; | |
1903 | return level; | |
1904 | } | |
1905 | ||
1906 | static void qeth_idx_write_cb(struct qeth_channel *channel, | |
1907 | struct qeth_cmd_buffer *iob) | |
1908 | { | |
1909 | struct qeth_card *card; | |
1910 | __u16 temp; | |
1911 | ||
d11ba0c4 | 1912 | QETH_DBF_TEXT(SETUP , 2, "idxwrcb"); |
4a71df50 FB |
1913 | |
1914 | if (channel->state == CH_STATE_DOWN) { | |
1915 | channel->state = CH_STATE_ACTIVATING; | |
1916 | goto out; | |
1917 | } | |
1918 | card = CARD_FROM_CDEV(channel->ccwdev); | |
1919 | ||
1920 | if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { | |
5113fec0 | 1921 | if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == QETH_IDX_ACT_ERR_EXCL) |
74eacdb9 FB |
1922 | dev_err(&card->write.ccwdev->dev, |
1923 | "The adapter is used exclusively by another " | |
1924 | "host\n"); | |
4a71df50 | 1925 | else |
74eacdb9 FB |
1926 | QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel:" |
1927 | " negative reply\n", | |
1928 | dev_name(&card->write.ccwdev->dev)); | |
4a71df50 FB |
1929 | goto out; |
1930 | } | |
1931 | memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); | |
1932 | if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) { | |
74eacdb9 FB |
1933 | QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel: " |
1934 | "function level mismatch (sent: 0x%x, received: " | |
1935 | "0x%x)\n", dev_name(&card->write.ccwdev->dev), | |
1936 | card->info.func_level, temp); | |
4a71df50 FB |
1937 | goto out; |
1938 | } | |
1939 | channel->state = CH_STATE_UP; | |
1940 | out: | |
1941 | qeth_release_buffer(channel, iob); | |
1942 | } | |
1943 | ||
1944 | static void qeth_idx_read_cb(struct qeth_channel *channel, | |
1945 | struct qeth_cmd_buffer *iob) | |
1946 | { | |
1947 | struct qeth_card *card; | |
1948 | __u16 temp; | |
1949 | ||
d11ba0c4 | 1950 | QETH_DBF_TEXT(SETUP , 2, "idxrdcb"); |
4a71df50 FB |
1951 | if (channel->state == CH_STATE_DOWN) { |
1952 | channel->state = CH_STATE_ACTIVATING; | |
1953 | goto out; | |
1954 | } | |
1955 | ||
1956 | card = CARD_FROM_CDEV(channel->ccwdev); | |
5113fec0 | 1957 | if (qeth_check_idx_response(card, iob->data)) |
4a71df50 FB |
1958 | goto out; |
1959 | ||
1960 | if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { | |
5113fec0 UB |
1961 | switch (QETH_IDX_ACT_CAUSE_CODE(iob->data)) { |
1962 | case QETH_IDX_ACT_ERR_EXCL: | |
74eacdb9 FB |
1963 | dev_err(&card->write.ccwdev->dev, |
1964 | "The adapter is used exclusively by another " | |
1965 | "host\n"); | |
5113fec0 UB |
1966 | break; |
1967 | case QETH_IDX_ACT_ERR_AUTH: | |
01fc3e86 | 1968 | case QETH_IDX_ACT_ERR_AUTH_USER: |
5113fec0 UB |
1969 | dev_err(&card->read.ccwdev->dev, |
1970 | "Setting the device online failed because of " | |
01fc3e86 | 1971 | "insufficient authorization\n"); |
5113fec0 UB |
1972 | break; |
1973 | default: | |
74eacdb9 FB |
1974 | QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel:" |
1975 | " negative reply\n", | |
1976 | dev_name(&card->read.ccwdev->dev)); | |
5113fec0 | 1977 | } |
01fc3e86 UB |
1978 | QETH_CARD_TEXT_(card, 2, "idxread%c", |
1979 | QETH_IDX_ACT_CAUSE_CODE(iob->data)); | |
4a71df50 FB |
1980 | goto out; |
1981 | } | |
1982 | ||
4a71df50 FB |
1983 | memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); |
1984 | if (temp != qeth_peer_func_level(card->info.func_level)) { | |
74eacdb9 FB |
1985 | QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel: function " |
1986 | "level mismatch (sent: 0x%x, received: 0x%x)\n", | |
1987 | dev_name(&card->read.ccwdev->dev), | |
1988 | card->info.func_level, temp); | |
4a71df50 FB |
1989 | goto out; |
1990 | } | |
1991 | memcpy(&card->token.issuer_rm_r, | |
1992 | QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), | |
1993 | QETH_MPC_TOKEN_LENGTH); | |
1994 | memcpy(&card->info.mcl_level[0], | |
1995 | QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH); | |
1996 | channel->state = CH_STATE_UP; | |
1997 | out: | |
1998 | qeth_release_buffer(channel, iob); | |
1999 | } | |
2000 | ||
2001 | void qeth_prepare_control_data(struct qeth_card *card, int len, | |
2002 | struct qeth_cmd_buffer *iob) | |
2003 | { | |
2004 | qeth_setup_ccw(&card->write, iob->data, len); | |
2005 | iob->callback = qeth_release_buffer; | |
2006 | ||
2007 | memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), | |
2008 | &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); | |
2009 | card->seqno.trans_hdr++; | |
2010 | memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data), | |
2011 | &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH); | |
2012 | card->seqno.pdu_hdr++; | |
2013 | memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data), | |
2014 | &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH); | |
d11ba0c4 | 2015 | QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN); |
4a71df50 FB |
2016 | } |
2017 | EXPORT_SYMBOL_GPL(qeth_prepare_control_data); | |
2018 | ||
efbbc1d5 EC |
2019 | /** |
2020 | * qeth_send_control_data() - send control command to the card | |
2021 | * @card: qeth_card structure pointer | |
2022 | * @len: size of the command buffer | |
2023 | * @iob: qeth_cmd_buffer pointer | |
2024 | * @reply_cb: callback function pointer | |
2025 | * @cb_card: pointer to the qeth_card structure | |
2026 | * @cb_reply: pointer to the qeth_reply structure | |
2027 | * @cb_cmd: pointer to the original iob for non-IPA | |
2028 | * commands, or to the qeth_ipa_cmd structure | |
2029 | * for the IPA commands. | |
2030 | * @reply_param: private pointer passed to the callback | |
2031 | * | |
2032 | * Returns the value of the `return_code' field of the response | |
2033 | * block returned from the hardware, or other error indication. | |
2034 | * Value of zero indicates successful execution of the command. | |
2035 | * | |
2036 | * Callback function gets called one or more times, with cb_cmd | |
2037 | * pointing to the response returned by the hardware. Callback | |
2038 | * function must return non-zero if more reply blocks are expected, | |
2039 | * and zero if the last or only reply block is received. Callback | |
2040 | * function can get the value of the reply_param pointer from the | |
2041 | * field 'param' of the structure qeth_reply. | |
2042 | */ | |
2043 | ||
4a71df50 FB |
2044 | int qeth_send_control_data(struct qeth_card *card, int len, |
2045 | struct qeth_cmd_buffer *iob, | |
efbbc1d5 EC |
2046 | int (*reply_cb)(struct qeth_card *cb_card, |
2047 | struct qeth_reply *cb_reply, | |
2048 | unsigned long cb_cmd), | |
4a71df50 FB |
2049 | void *reply_param) |
2050 | { | |
2051 | int rc; | |
2052 | unsigned long flags; | |
2053 | struct qeth_reply *reply = NULL; | |
7834cd5a | 2054 | unsigned long timeout, event_timeout; |
5b54e16f | 2055 | struct qeth_ipa_cmd *cmd; |
4a71df50 | 2056 | |
847a50fd | 2057 | QETH_CARD_TEXT(card, 2, "sendctl"); |
4a71df50 | 2058 | |
908abbb5 UB |
2059 | if (card->read_or_write_problem) { |
2060 | qeth_release_buffer(iob->channel, iob); | |
2061 | return -EIO; | |
2062 | } | |
4a71df50 FB |
2063 | reply = qeth_alloc_reply(card); |
2064 | if (!reply) { | |
4a71df50 FB |
2065 | return -ENOMEM; |
2066 | } | |
2067 | reply->callback = reply_cb; | |
2068 | reply->param = reply_param; | |
2069 | if (card->state == CARD_STATE_DOWN) | |
2070 | reply->seqno = QETH_IDX_COMMAND_SEQNO; | |
2071 | else | |
2072 | reply->seqno = card->seqno.ipa++; | |
2073 | init_waitqueue_head(&reply->wait_q); | |
2074 | spin_lock_irqsave(&card->lock, flags); | |
2075 | list_add_tail(&reply->list, &card->cmd_waiter_list); | |
2076 | spin_unlock_irqrestore(&card->lock, flags); | |
4a71df50 FB |
2077 | |
2078 | while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ; | |
2079 | qeth_prepare_control_data(card, len, iob); | |
2080 | ||
2081 | if (IS_IPA(iob->data)) | |
7834cd5a | 2082 | event_timeout = QETH_IPA_TIMEOUT; |
4a71df50 | 2083 | else |
7834cd5a HC |
2084 | event_timeout = QETH_TIMEOUT; |
2085 | timeout = jiffies + event_timeout; | |
4a71df50 | 2086 | |
847a50fd | 2087 | QETH_CARD_TEXT(card, 6, "noirqpnd"); |
4a71df50 FB |
2088 | spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); |
2089 | rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, | |
2090 | (addr_t) iob, 0, 0); | |
2091 | spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); | |
2092 | if (rc) { | |
74eacdb9 FB |
2093 | QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: " |
2094 | "ccw_device_start rc = %i\n", | |
2095 | dev_name(&card->write.ccwdev->dev), rc); | |
847a50fd | 2096 | QETH_CARD_TEXT_(card, 2, " err%d", rc); |
4a71df50 FB |
2097 | spin_lock_irqsave(&card->lock, flags); |
2098 | list_del_init(&reply->list); | |
2099 | qeth_put_reply(reply); | |
2100 | spin_unlock_irqrestore(&card->lock, flags); | |
2101 | qeth_release_buffer(iob->channel, iob); | |
2102 | atomic_set(&card->write.irq_pending, 0); | |
2103 | wake_up(&card->wait_q); | |
2104 | return rc; | |
2105 | } | |
5b54e16f FB |
2106 | |
2107 | /* we have only one long running ipassist, since we can ensure | |
2108 | process context of this command we can sleep */ | |
2109 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
2110 | if ((cmd->hdr.command == IPA_CMD_SETIP) && | |
2111 | (cmd->hdr.prot_version == QETH_PROT_IPV4)) { | |
2112 | if (!wait_event_timeout(reply->wait_q, | |
7834cd5a | 2113 | atomic_read(&reply->received), event_timeout)) |
5b54e16f FB |
2114 | goto time_err; |
2115 | } else { | |
2116 | while (!atomic_read(&reply->received)) { | |
2117 | if (time_after(jiffies, timeout)) | |
2118 | goto time_err; | |
2119 | cpu_relax(); | |
6531084c | 2120 | } |
5b54e16f FB |
2121 | } |
2122 | ||
70919e23 UB |
2123 | if (reply->rc == -EIO) |
2124 | goto error; | |
5b54e16f FB |
2125 | rc = reply->rc; |
2126 | qeth_put_reply(reply); | |
2127 | return rc; | |
2128 | ||
2129 | time_err: | |
70919e23 | 2130 | reply->rc = -ETIME; |
5b54e16f FB |
2131 | spin_lock_irqsave(&reply->card->lock, flags); |
2132 | list_del_init(&reply->list); | |
2133 | spin_unlock_irqrestore(&reply->card->lock, flags); | |
5b54e16f | 2134 | atomic_inc(&reply->received); |
70919e23 | 2135 | error: |
908abbb5 UB |
2136 | atomic_set(&card->write.irq_pending, 0); |
2137 | qeth_release_buffer(iob->channel, iob); | |
2138 | card->write.buf_no = (card->write.buf_no + 1) % QETH_CMD_BUFFER_NO; | |
4a71df50 FB |
2139 | rc = reply->rc; |
2140 | qeth_put_reply(reply); | |
2141 | return rc; | |
2142 | } | |
2143 | EXPORT_SYMBOL_GPL(qeth_send_control_data); | |
2144 | ||
2145 | static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply, | |
2146 | unsigned long data) | |
2147 | { | |
2148 | struct qeth_cmd_buffer *iob; | |
2149 | ||
d11ba0c4 | 2150 | QETH_DBF_TEXT(SETUP, 2, "cmenblcb"); |
4a71df50 FB |
2151 | |
2152 | iob = (struct qeth_cmd_buffer *) data; | |
2153 | memcpy(&card->token.cm_filter_r, | |
2154 | QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data), | |
2155 | QETH_MPC_TOKEN_LENGTH); | |
d11ba0c4 | 2156 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
4a71df50 FB |
2157 | return 0; |
2158 | } | |
2159 | ||
2160 | static int qeth_cm_enable(struct qeth_card *card) | |
2161 | { | |
2162 | int rc; | |
2163 | struct qeth_cmd_buffer *iob; | |
2164 | ||
d11ba0c4 | 2165 | QETH_DBF_TEXT(SETUP, 2, "cmenable"); |
4a71df50 FB |
2166 | |
2167 | iob = qeth_wait_for_buffer(&card->write); | |
2168 | memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE); | |
2169 | memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data), | |
2170 | &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); | |
2171 | memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data), | |
2172 | &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH); | |
2173 | ||
2174 | rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob, | |
2175 | qeth_cm_enable_cb, NULL); | |
2176 | return rc; | |
2177 | } | |
2178 | ||
2179 | static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply, | |
2180 | unsigned long data) | |
2181 | { | |
2182 | ||
2183 | struct qeth_cmd_buffer *iob; | |
2184 | ||
d11ba0c4 | 2185 | QETH_DBF_TEXT(SETUP, 2, "cmsetpcb"); |
4a71df50 FB |
2186 | |
2187 | iob = (struct qeth_cmd_buffer *) data; | |
2188 | memcpy(&card->token.cm_connection_r, | |
2189 | QETH_CM_SETUP_RESP_DEST_ADDR(iob->data), | |
2190 | QETH_MPC_TOKEN_LENGTH); | |
d11ba0c4 | 2191 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
4a71df50 FB |
2192 | return 0; |
2193 | } | |
2194 | ||
2195 | static int qeth_cm_setup(struct qeth_card *card) | |
2196 | { | |
2197 | int rc; | |
2198 | struct qeth_cmd_buffer *iob; | |
2199 | ||
d11ba0c4 | 2200 | QETH_DBF_TEXT(SETUP, 2, "cmsetup"); |
4a71df50 FB |
2201 | |
2202 | iob = qeth_wait_for_buffer(&card->write); | |
2203 | memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE); | |
2204 | memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data), | |
2205 | &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); | |
2206 | memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data), | |
2207 | &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH); | |
2208 | memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data), | |
2209 | &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH); | |
2210 | rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob, | |
2211 | qeth_cm_setup_cb, NULL); | |
2212 | return rc; | |
2213 | ||
2214 | } | |
2215 | ||
cef6ff22 | 2216 | static int qeth_get_initial_mtu_for_card(struct qeth_card *card) |
4a71df50 FB |
2217 | { |
2218 | switch (card->info.type) { | |
4a71df50 FB |
2219 | case QETH_CARD_TYPE_IQD: |
2220 | return card->info.max_mtu; | |
5113fec0 | 2221 | case QETH_CARD_TYPE_OSD: |
5113fec0 | 2222 | case QETH_CARD_TYPE_OSX: |
6e6f472d JW |
2223 | if (!card->options.layer2) |
2224 | return ETH_DATA_LEN - 8; /* L3: allow for LLC + SNAP */ | |
2225 | /* fall through */ | |
4a71df50 | 2226 | default: |
6e6f472d | 2227 | return ETH_DATA_LEN; |
4a71df50 FB |
2228 | } |
2229 | } | |
2230 | ||
cef6ff22 | 2231 | static int qeth_get_mtu_outof_framesize(int framesize) |
4a71df50 FB |
2232 | { |
2233 | switch (framesize) { | |
2234 | case 0x4000: | |
2235 | return 8192; | |
2236 | case 0x6000: | |
2237 | return 16384; | |
2238 | case 0xa000: | |
2239 | return 32768; | |
2240 | case 0xffff: | |
2241 | return 57344; | |
2242 | default: | |
2243 | return 0; | |
2244 | } | |
2245 | } | |
2246 | ||
cef6ff22 | 2247 | static int qeth_mtu_is_valid(struct qeth_card *card, int mtu) |
4a71df50 FB |
2248 | { |
2249 | switch (card->info.type) { | |
5113fec0 UB |
2250 | case QETH_CARD_TYPE_OSD: |
2251 | case QETH_CARD_TYPE_OSM: | |
2252 | case QETH_CARD_TYPE_OSX: | |
4a71df50 FB |
2253 | case QETH_CARD_TYPE_IQD: |
2254 | return ((mtu >= 576) && | |
9853b97b | 2255 | (mtu <= card->info.max_mtu)); |
4a71df50 | 2256 | case QETH_CARD_TYPE_OSN: |
4a71df50 FB |
2257 | default: |
2258 | return 1; | |
2259 | } | |
2260 | } | |
2261 | ||
2262 | static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply, | |
2263 | unsigned long data) | |
2264 | { | |
2265 | ||
2266 | __u16 mtu, framesize; | |
2267 | __u16 len; | |
2268 | __u8 link_type; | |
2269 | struct qeth_cmd_buffer *iob; | |
2270 | ||
d11ba0c4 | 2271 | QETH_DBF_TEXT(SETUP, 2, "ulpenacb"); |
4a71df50 FB |
2272 | |
2273 | iob = (struct qeth_cmd_buffer *) data; | |
2274 | memcpy(&card->token.ulp_filter_r, | |
2275 | QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data), | |
2276 | QETH_MPC_TOKEN_LENGTH); | |
9853b97b | 2277 | if (card->info.type == QETH_CARD_TYPE_IQD) { |
4a71df50 FB |
2278 | memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2); |
2279 | mtu = qeth_get_mtu_outof_framesize(framesize); | |
2280 | if (!mtu) { | |
2281 | iob->rc = -EINVAL; | |
d11ba0c4 | 2282 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
4a71df50 FB |
2283 | return 0; |
2284 | } | |
8b2e18f6 UB |
2285 | if (card->info.initial_mtu && (card->info.initial_mtu != mtu)) { |
2286 | /* frame size has changed */ | |
2287 | if (card->dev && | |
2288 | ((card->dev->mtu == card->info.initial_mtu) || | |
2289 | (card->dev->mtu > mtu))) | |
2290 | card->dev->mtu = mtu; | |
2291 | qeth_free_qdio_buffers(card); | |
2292 | } | |
4a71df50 | 2293 | card->info.initial_mtu = mtu; |
8b2e18f6 | 2294 | card->info.max_mtu = mtu; |
4a71df50 FB |
2295 | card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE; |
2296 | } else { | |
9853b97b FB |
2297 | card->info.max_mtu = *(__u16 *)QETH_ULP_ENABLE_RESP_MAX_MTU( |
2298 | iob->data); | |
fe44014a SR |
2299 | card->info.initial_mtu = min(card->info.max_mtu, |
2300 | qeth_get_initial_mtu_for_card(card)); | |
4a71df50 FB |
2301 | card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT; |
2302 | } | |
2303 | ||
2304 | memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2); | |
2305 | if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) { | |
2306 | memcpy(&link_type, | |
2307 | QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1); | |
2308 | card->info.link_type = link_type; | |
2309 | } else | |
2310 | card->info.link_type = 0; | |
01fc3e86 | 2311 | QETH_DBF_TEXT_(SETUP, 2, "link%d", card->info.link_type); |
d11ba0c4 | 2312 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
4a71df50 FB |
2313 | return 0; |
2314 | } | |
2315 | ||
2316 | static int qeth_ulp_enable(struct qeth_card *card) | |
2317 | { | |
2318 | int rc; | |
2319 | char prot_type; | |
2320 | struct qeth_cmd_buffer *iob; | |
2321 | ||
2322 | /*FIXME: trace view callbacks*/ | |
d11ba0c4 | 2323 | QETH_DBF_TEXT(SETUP, 2, "ulpenabl"); |
4a71df50 FB |
2324 | |
2325 | iob = qeth_wait_for_buffer(&card->write); | |
2326 | memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE); | |
2327 | ||
2328 | *(QETH_ULP_ENABLE_LINKNUM(iob->data)) = | |
2329 | (__u8) card->info.portno; | |
2330 | if (card->options.layer2) | |
2331 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
2332 | prot_type = QETH_PROT_OSN2; | |
2333 | else | |
2334 | prot_type = QETH_PROT_LAYER2; | |
2335 | else | |
2336 | prot_type = QETH_PROT_TCPIP; | |
2337 | ||
2338 | memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1); | |
2339 | memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data), | |
2340 | &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); | |
2341 | memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data), | |
2342 | &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH); | |
4a71df50 FB |
2343 | rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob, |
2344 | qeth_ulp_enable_cb, NULL); | |
2345 | return rc; | |
2346 | ||
2347 | } | |
2348 | ||
2349 | static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply, | |
2350 | unsigned long data) | |
2351 | { | |
2352 | struct qeth_cmd_buffer *iob; | |
2353 | ||
d11ba0c4 | 2354 | QETH_DBF_TEXT(SETUP, 2, "ulpstpcb"); |
4a71df50 FB |
2355 | |
2356 | iob = (struct qeth_cmd_buffer *) data; | |
2357 | memcpy(&card->token.ulp_connection_r, | |
2358 | QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), | |
2359 | QETH_MPC_TOKEN_LENGTH); | |
65a1f898 UB |
2360 | if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), |
2361 | 3)) { | |
2362 | QETH_DBF_TEXT(SETUP, 2, "olmlimit"); | |
2363 | dev_err(&card->gdev->dev, "A connection could not be " | |
2364 | "established because of an OLM limit\n"); | |
bbb822a8 | 2365 | iob->rc = -EMLINK; |
65a1f898 | 2366 | } |
d11ba0c4 | 2367 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
7bf9bcff | 2368 | return 0; |
4a71df50 FB |
2369 | } |
2370 | ||
2371 | static int qeth_ulp_setup(struct qeth_card *card) | |
2372 | { | |
2373 | int rc; | |
2374 | __u16 temp; | |
2375 | struct qeth_cmd_buffer *iob; | |
2376 | struct ccw_dev_id dev_id; | |
2377 | ||
d11ba0c4 | 2378 | QETH_DBF_TEXT(SETUP, 2, "ulpsetup"); |
4a71df50 FB |
2379 | |
2380 | iob = qeth_wait_for_buffer(&card->write); | |
2381 | memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE); | |
2382 | ||
2383 | memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data), | |
2384 | &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); | |
2385 | memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data), | |
2386 | &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH); | |
2387 | memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data), | |
2388 | &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH); | |
2389 | ||
2390 | ccw_device_get_id(CARD_DDEV(card), &dev_id); | |
2391 | memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2); | |
2392 | temp = (card->info.cula << 8) + card->info.unit_addr2; | |
2393 | memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2); | |
2394 | rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob, | |
2395 | qeth_ulp_setup_cb, NULL); | |
2396 | return rc; | |
2397 | } | |
2398 | ||
0da9581d EL |
2399 | static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *q, int bidx) |
2400 | { | |
2401 | int rc; | |
2402 | struct qeth_qdio_out_buffer *newbuf; | |
2403 | ||
2404 | rc = 0; | |
2405 | newbuf = kmem_cache_zalloc(qeth_qdio_outbuf_cache, GFP_ATOMIC); | |
2406 | if (!newbuf) { | |
2407 | rc = -ENOMEM; | |
2408 | goto out; | |
2409 | } | |
d445a4e2 | 2410 | newbuf->buffer = q->qdio_bufs[bidx]; |
0da9581d EL |
2411 | skb_queue_head_init(&newbuf->skb_list); |
2412 | lockdep_set_class(&newbuf->skb_list.lock, &qdio_out_skb_queue_key); | |
2413 | newbuf->q = q; | |
2414 | newbuf->aob = NULL; | |
2415 | newbuf->next_pending = q->bufs[bidx]; | |
2416 | atomic_set(&newbuf->state, QETH_QDIO_BUF_EMPTY); | |
2417 | q->bufs[bidx] = newbuf; | |
2418 | if (q->bufstates) { | |
2419 | q->bufstates[bidx].user = newbuf; | |
2420 | QETH_CARD_TEXT_(q->card, 2, "nbs%d", bidx); | |
2421 | QETH_CARD_TEXT_(q->card, 2, "%lx", (long) newbuf); | |
2422 | QETH_CARD_TEXT_(q->card, 2, "%lx", | |
2423 | (long) newbuf->next_pending); | |
2424 | } | |
2425 | out: | |
2426 | return rc; | |
2427 | } | |
2428 | ||
d445a4e2 SO |
2429 | static void qeth_free_qdio_out_buf(struct qeth_qdio_out_q *q) |
2430 | { | |
2431 | if (!q) | |
2432 | return; | |
2433 | ||
2434 | qdio_free_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q); | |
2435 | kfree(q); | |
2436 | } | |
2437 | ||
2438 | static struct qeth_qdio_out_q *qeth_alloc_qdio_out_buf(void) | |
2439 | { | |
2440 | struct qeth_qdio_out_q *q = kzalloc(sizeof(*q), GFP_KERNEL); | |
2441 | ||
2442 | if (!q) | |
2443 | return NULL; | |
2444 | ||
2445 | if (qdio_alloc_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q)) { | |
2446 | kfree(q); | |
2447 | return NULL; | |
2448 | } | |
2449 | return q; | |
2450 | } | |
0da9581d | 2451 | |
4a71df50 FB |
2452 | static int qeth_alloc_qdio_buffers(struct qeth_card *card) |
2453 | { | |
2454 | int i, j; | |
2455 | ||
d11ba0c4 | 2456 | QETH_DBF_TEXT(SETUP, 2, "allcqdbf"); |
4a71df50 FB |
2457 | |
2458 | if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED, | |
2459 | QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED) | |
2460 | return 0; | |
2461 | ||
4601ba6c SO |
2462 | QETH_DBF_TEXT(SETUP, 2, "inq"); |
2463 | card->qdio.in_q = qeth_alloc_qdio_queue(); | |
4a71df50 FB |
2464 | if (!card->qdio.in_q) |
2465 | goto out_nomem; | |
4601ba6c | 2466 | |
4a71df50 FB |
2467 | /* inbound buffer pool */ |
2468 | if (qeth_alloc_buffer_pool(card)) | |
2469 | goto out_freeinq; | |
0da9581d | 2470 | |
4a71df50 FB |
2471 | /* outbound */ |
2472 | card->qdio.out_qs = | |
b3332930 | 2473 | kzalloc(card->qdio.no_out_queues * |
4a71df50 FB |
2474 | sizeof(struct qeth_qdio_out_q *), GFP_KERNEL); |
2475 | if (!card->qdio.out_qs) | |
2476 | goto out_freepool; | |
2477 | for (i = 0; i < card->qdio.no_out_queues; ++i) { | |
d445a4e2 | 2478 | card->qdio.out_qs[i] = qeth_alloc_qdio_out_buf(); |
4a71df50 FB |
2479 | if (!card->qdio.out_qs[i]) |
2480 | goto out_freeoutq; | |
d11ba0c4 PT |
2481 | QETH_DBF_TEXT_(SETUP, 2, "outq %i", i); |
2482 | QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *)); | |
4a71df50 FB |
2483 | card->qdio.out_qs[i]->queue_no = i; |
2484 | /* give outbound qeth_qdio_buffers their qdio_buffers */ | |
2485 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { | |
18af5c17 | 2486 | WARN_ON(card->qdio.out_qs[i]->bufs[j] != NULL); |
0da9581d EL |
2487 | if (qeth_init_qdio_out_buf(card->qdio.out_qs[i], j)) |
2488 | goto out_freeoutqbufs; | |
4a71df50 FB |
2489 | } |
2490 | } | |
0da9581d EL |
2491 | |
2492 | /* completion */ | |
2493 | if (qeth_alloc_cq(card)) | |
2494 | goto out_freeoutq; | |
2495 | ||
4a71df50 FB |
2496 | return 0; |
2497 | ||
0da9581d EL |
2498 | out_freeoutqbufs: |
2499 | while (j > 0) { | |
2500 | --j; | |
2501 | kmem_cache_free(qeth_qdio_outbuf_cache, | |
2502 | card->qdio.out_qs[i]->bufs[j]); | |
2503 | card->qdio.out_qs[i]->bufs[j] = NULL; | |
2504 | } | |
4a71df50 | 2505 | out_freeoutq: |
0da9581d | 2506 | while (i > 0) { |
d445a4e2 | 2507 | qeth_free_qdio_out_buf(card->qdio.out_qs[--i]); |
0da9581d EL |
2508 | qeth_clear_outq_buffers(card->qdio.out_qs[i], 1); |
2509 | } | |
4a71df50 FB |
2510 | kfree(card->qdio.out_qs); |
2511 | card->qdio.out_qs = NULL; | |
2512 | out_freepool: | |
2513 | qeth_free_buffer_pool(card); | |
2514 | out_freeinq: | |
4601ba6c | 2515 | qeth_free_qdio_queue(card->qdio.in_q); |
4a71df50 FB |
2516 | card->qdio.in_q = NULL; |
2517 | out_nomem: | |
2518 | atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); | |
2519 | return -ENOMEM; | |
2520 | } | |
2521 | ||
d445a4e2 SO |
2522 | static void qeth_free_qdio_buffers(struct qeth_card *card) |
2523 | { | |
2524 | int i, j; | |
2525 | ||
2526 | if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) == | |
2527 | QETH_QDIO_UNINITIALIZED) | |
2528 | return; | |
2529 | ||
2530 | qeth_free_cq(card); | |
2531 | cancel_delayed_work_sync(&card->buffer_reclaim_work); | |
2532 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { | |
2533 | if (card->qdio.in_q->bufs[j].rx_skb) | |
2534 | dev_kfree_skb_any(card->qdio.in_q->bufs[j].rx_skb); | |
2535 | } | |
2536 | qeth_free_qdio_queue(card->qdio.in_q); | |
2537 | card->qdio.in_q = NULL; | |
2538 | /* inbound buffer pool */ | |
2539 | qeth_free_buffer_pool(card); | |
2540 | /* free outbound qdio_qs */ | |
2541 | if (card->qdio.out_qs) { | |
2542 | for (i = 0; i < card->qdio.no_out_queues; ++i) { | |
2543 | qeth_clear_outq_buffers(card->qdio.out_qs[i], 1); | |
2544 | qeth_free_qdio_out_buf(card->qdio.out_qs[i]); | |
2545 | } | |
2546 | kfree(card->qdio.out_qs); | |
2547 | card->qdio.out_qs = NULL; | |
2548 | } | |
2549 | } | |
2550 | ||
4a71df50 FB |
2551 | static void qeth_create_qib_param_field(struct qeth_card *card, |
2552 | char *param_field) | |
2553 | { | |
2554 | ||
2555 | param_field[0] = _ascebc['P']; | |
2556 | param_field[1] = _ascebc['C']; | |
2557 | param_field[2] = _ascebc['I']; | |
2558 | param_field[3] = _ascebc['T']; | |
2559 | *((unsigned int *) (¶m_field[4])) = QETH_PCI_THRESHOLD_A(card); | |
2560 | *((unsigned int *) (¶m_field[8])) = QETH_PCI_THRESHOLD_B(card); | |
2561 | *((unsigned int *) (¶m_field[12])) = QETH_PCI_TIMER_VALUE(card); | |
2562 | } | |
2563 | ||
2564 | static void qeth_create_qib_param_field_blkt(struct qeth_card *card, | |
2565 | char *param_field) | |
2566 | { | |
2567 | param_field[16] = _ascebc['B']; | |
2568 | param_field[17] = _ascebc['L']; | |
2569 | param_field[18] = _ascebc['K']; | |
2570 | param_field[19] = _ascebc['T']; | |
2571 | *((unsigned int *) (¶m_field[20])) = card->info.blkt.time_total; | |
2572 | *((unsigned int *) (¶m_field[24])) = card->info.blkt.inter_packet; | |
2573 | *((unsigned int *) (¶m_field[28])) = | |
2574 | card->info.blkt.inter_packet_jumbo; | |
2575 | } | |
2576 | ||
2577 | static int qeth_qdio_activate(struct qeth_card *card) | |
2578 | { | |
d11ba0c4 | 2579 | QETH_DBF_TEXT(SETUP, 3, "qdioact"); |
779e6e1c | 2580 | return qdio_activate(CARD_DDEV(card)); |
4a71df50 FB |
2581 | } |
2582 | ||
2583 | static int qeth_dm_act(struct qeth_card *card) | |
2584 | { | |
2585 | int rc; | |
2586 | struct qeth_cmd_buffer *iob; | |
2587 | ||
d11ba0c4 | 2588 | QETH_DBF_TEXT(SETUP, 2, "dmact"); |
4a71df50 FB |
2589 | |
2590 | iob = qeth_wait_for_buffer(&card->write); | |
2591 | memcpy(iob->data, DM_ACT, DM_ACT_SIZE); | |
2592 | ||
2593 | memcpy(QETH_DM_ACT_DEST_ADDR(iob->data), | |
2594 | &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); | |
2595 | memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data), | |
2596 | &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); | |
2597 | rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL); | |
2598 | return rc; | |
2599 | } | |
2600 | ||
2601 | static int qeth_mpc_initialize(struct qeth_card *card) | |
2602 | { | |
2603 | int rc; | |
2604 | ||
d11ba0c4 | 2605 | QETH_DBF_TEXT(SETUP, 2, "mpcinit"); |
4a71df50 FB |
2606 | |
2607 | rc = qeth_issue_next_read(card); | |
2608 | if (rc) { | |
d11ba0c4 | 2609 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
2610 | return rc; |
2611 | } | |
2612 | rc = qeth_cm_enable(card); | |
2613 | if (rc) { | |
d11ba0c4 | 2614 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
4a71df50 FB |
2615 | goto out_qdio; |
2616 | } | |
2617 | rc = qeth_cm_setup(card); | |
2618 | if (rc) { | |
d11ba0c4 | 2619 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
4a71df50 FB |
2620 | goto out_qdio; |
2621 | } | |
2622 | rc = qeth_ulp_enable(card); | |
2623 | if (rc) { | |
d11ba0c4 | 2624 | QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); |
4a71df50 FB |
2625 | goto out_qdio; |
2626 | } | |
2627 | rc = qeth_ulp_setup(card); | |
2628 | if (rc) { | |
d11ba0c4 | 2629 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); |
4a71df50 FB |
2630 | goto out_qdio; |
2631 | } | |
2632 | rc = qeth_alloc_qdio_buffers(card); | |
2633 | if (rc) { | |
d11ba0c4 | 2634 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); |
4a71df50 FB |
2635 | goto out_qdio; |
2636 | } | |
2637 | rc = qeth_qdio_establish(card); | |
2638 | if (rc) { | |
d11ba0c4 | 2639 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); |
4a71df50 FB |
2640 | qeth_free_qdio_buffers(card); |
2641 | goto out_qdio; | |
2642 | } | |
2643 | rc = qeth_qdio_activate(card); | |
2644 | if (rc) { | |
d11ba0c4 | 2645 | QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc); |
4a71df50 FB |
2646 | goto out_qdio; |
2647 | } | |
2648 | rc = qeth_dm_act(card); | |
2649 | if (rc) { | |
d11ba0c4 | 2650 | QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc); |
4a71df50 FB |
2651 | goto out_qdio; |
2652 | } | |
2653 | ||
2654 | return 0; | |
2655 | out_qdio: | |
2656 | qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD); | |
22ae2790 | 2657 | qdio_free(CARD_DDEV(card)); |
4a71df50 FB |
2658 | return rc; |
2659 | } | |
2660 | ||
4a71df50 FB |
2661 | void qeth_print_status_message(struct qeth_card *card) |
2662 | { | |
2663 | switch (card->info.type) { | |
5113fec0 UB |
2664 | case QETH_CARD_TYPE_OSD: |
2665 | case QETH_CARD_TYPE_OSM: | |
2666 | case QETH_CARD_TYPE_OSX: | |
4a71df50 FB |
2667 | /* VM will use a non-zero first character |
2668 | * to indicate a HiperSockets like reporting | |
2669 | * of the level OSA sets the first character to zero | |
2670 | * */ | |
2671 | if (!card->info.mcl_level[0]) { | |
2672 | sprintf(card->info.mcl_level, "%02x%02x", | |
2673 | card->info.mcl_level[2], | |
2674 | card->info.mcl_level[3]); | |
4a71df50 FB |
2675 | break; |
2676 | } | |
2677 | /* fallthrough */ | |
2678 | case QETH_CARD_TYPE_IQD: | |
906f1f07 KDW |
2679 | if ((card->info.guestlan) || |
2680 | (card->info.mcl_level[0] & 0x80)) { | |
4a71df50 FB |
2681 | card->info.mcl_level[0] = (char) _ebcasc[(__u8) |
2682 | card->info.mcl_level[0]]; | |
2683 | card->info.mcl_level[1] = (char) _ebcasc[(__u8) | |
2684 | card->info.mcl_level[1]]; | |
2685 | card->info.mcl_level[2] = (char) _ebcasc[(__u8) | |
2686 | card->info.mcl_level[2]]; | |
2687 | card->info.mcl_level[3] = (char) _ebcasc[(__u8) | |
2688 | card->info.mcl_level[3]]; | |
2689 | card->info.mcl_level[QETH_MCL_LENGTH] = 0; | |
2690 | } | |
2691 | break; | |
2692 | default: | |
2693 | memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1); | |
2694 | } | |
239ff408 UB |
2695 | dev_info(&card->gdev->dev, |
2696 | "Device is a%s card%s%s%s\nwith link type %s.\n", | |
2697 | qeth_get_cardname(card), | |
2698 | (card->info.mcl_level[0]) ? " (level: " : "", | |
2699 | (card->info.mcl_level[0]) ? card->info.mcl_level : "", | |
2700 | (card->info.mcl_level[0]) ? ")" : "", | |
2701 | qeth_get_cardname_short(card)); | |
4a71df50 FB |
2702 | } |
2703 | EXPORT_SYMBOL_GPL(qeth_print_status_message); | |
2704 | ||
4a71df50 FB |
2705 | static void qeth_initialize_working_pool_list(struct qeth_card *card) |
2706 | { | |
2707 | struct qeth_buffer_pool_entry *entry; | |
2708 | ||
847a50fd | 2709 | QETH_CARD_TEXT(card, 5, "inwrklst"); |
4a71df50 FB |
2710 | |
2711 | list_for_each_entry(entry, | |
2712 | &card->qdio.init_pool.entry_list, init_list) { | |
2713 | qeth_put_buffer_pool_entry(card, entry); | |
2714 | } | |
2715 | } | |
2716 | ||
cef6ff22 JW |
2717 | static struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry( |
2718 | struct qeth_card *card) | |
4a71df50 FB |
2719 | { |
2720 | struct list_head *plh; | |
2721 | struct qeth_buffer_pool_entry *entry; | |
2722 | int i, free; | |
2723 | struct page *page; | |
2724 | ||
2725 | if (list_empty(&card->qdio.in_buf_pool.entry_list)) | |
2726 | return NULL; | |
2727 | ||
2728 | list_for_each(plh, &card->qdio.in_buf_pool.entry_list) { | |
2729 | entry = list_entry(plh, struct qeth_buffer_pool_entry, list); | |
2730 | free = 1; | |
2731 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { | |
2732 | if (page_count(virt_to_page(entry->elements[i])) > 1) { | |
2733 | free = 0; | |
2734 | break; | |
2735 | } | |
2736 | } | |
2737 | if (free) { | |
2738 | list_del_init(&entry->list); | |
2739 | return entry; | |
2740 | } | |
2741 | } | |
2742 | ||
2743 | /* no free buffer in pool so take first one and swap pages */ | |
2744 | entry = list_entry(card->qdio.in_buf_pool.entry_list.next, | |
2745 | struct qeth_buffer_pool_entry, list); | |
2746 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { | |
2747 | if (page_count(virt_to_page(entry->elements[i])) > 1) { | |
508b3c4f | 2748 | page = alloc_page(GFP_ATOMIC); |
4a71df50 FB |
2749 | if (!page) { |
2750 | return NULL; | |
2751 | } else { | |
2752 | free_page((unsigned long)entry->elements[i]); | |
2753 | entry->elements[i] = page_address(page); | |
2754 | if (card->options.performance_stats) | |
2755 | card->perf_stats.sg_alloc_page_rx++; | |
2756 | } | |
2757 | } | |
2758 | } | |
2759 | list_del_init(&entry->list); | |
2760 | return entry; | |
2761 | } | |
2762 | ||
2763 | static int qeth_init_input_buffer(struct qeth_card *card, | |
2764 | struct qeth_qdio_buffer *buf) | |
2765 | { | |
2766 | struct qeth_buffer_pool_entry *pool_entry; | |
2767 | int i; | |
2768 | ||
b3332930 FB |
2769 | if ((card->options.cq == QETH_CQ_ENABLED) && (!buf->rx_skb)) { |
2770 | buf->rx_skb = dev_alloc_skb(QETH_RX_PULL_LEN + ETH_HLEN); | |
2771 | if (!buf->rx_skb) | |
2772 | return 1; | |
2773 | } | |
2774 | ||
4a71df50 FB |
2775 | pool_entry = qeth_find_free_buffer_pool_entry(card); |
2776 | if (!pool_entry) | |
2777 | return 1; | |
2778 | ||
2779 | /* | |
2780 | * since the buffer is accessed only from the input_tasklet | |
2781 | * there shouldn't be a need to synchronize; also, since we use | |
2782 | * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off | |
2783 | * buffers | |
2784 | */ | |
4a71df50 FB |
2785 | |
2786 | buf->pool_entry = pool_entry; | |
2787 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { | |
2788 | buf->buffer->element[i].length = PAGE_SIZE; | |
2789 | buf->buffer->element[i].addr = pool_entry->elements[i]; | |
2790 | if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1) | |
3ec90878 | 2791 | buf->buffer->element[i].eflags = SBAL_EFLAGS_LAST_ENTRY; |
4a71df50 | 2792 | else |
3ec90878 JG |
2793 | buf->buffer->element[i].eflags = 0; |
2794 | buf->buffer->element[i].sflags = 0; | |
4a71df50 FB |
2795 | } |
2796 | return 0; | |
2797 | } | |
2798 | ||
2799 | int qeth_init_qdio_queues(struct qeth_card *card) | |
2800 | { | |
2801 | int i, j; | |
2802 | int rc; | |
2803 | ||
d11ba0c4 | 2804 | QETH_DBF_TEXT(SETUP, 2, "initqdqs"); |
4a71df50 FB |
2805 | |
2806 | /* inbound queue */ | |
6d284bde SO |
2807 | qdio_reset_buffers(card->qdio.in_q->qdio_bufs, |
2808 | QDIO_MAX_BUFFERS_PER_Q); | |
4a71df50 FB |
2809 | qeth_initialize_working_pool_list(card); |
2810 | /*give only as many buffers to hardware as we have buffer pool entries*/ | |
2811 | for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i) | |
2812 | qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]); | |
2813 | card->qdio.in_q->next_buf_to_init = | |
2814 | card->qdio.in_buf_pool.buf_count - 1; | |
2815 | rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0, | |
779e6e1c | 2816 | card->qdio.in_buf_pool.buf_count - 1); |
4a71df50 | 2817 | if (rc) { |
d11ba0c4 | 2818 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
2819 | return rc; |
2820 | } | |
0da9581d EL |
2821 | |
2822 | /* completion */ | |
2823 | rc = qeth_cq_init(card); | |
2824 | if (rc) { | |
2825 | return rc; | |
2826 | } | |
2827 | ||
4a71df50 FB |
2828 | /* outbound queue */ |
2829 | for (i = 0; i < card->qdio.no_out_queues; ++i) { | |
d445a4e2 SO |
2830 | qdio_reset_buffers(card->qdio.out_qs[i]->qdio_bufs, |
2831 | QDIO_MAX_BUFFERS_PER_Q); | |
4a71df50 FB |
2832 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { |
2833 | qeth_clear_output_buffer(card->qdio.out_qs[i], | |
0da9581d EL |
2834 | card->qdio.out_qs[i]->bufs[j], |
2835 | QETH_QDIO_BUF_EMPTY); | |
4a71df50 FB |
2836 | } |
2837 | card->qdio.out_qs[i]->card = card; | |
2838 | card->qdio.out_qs[i]->next_buf_to_fill = 0; | |
2839 | card->qdio.out_qs[i]->do_pack = 0; | |
2840 | atomic_set(&card->qdio.out_qs[i]->used_buffers, 0); | |
2841 | atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0); | |
2842 | atomic_set(&card->qdio.out_qs[i]->state, | |
2843 | QETH_OUT_Q_UNLOCKED); | |
2844 | } | |
2845 | return 0; | |
2846 | } | |
2847 | EXPORT_SYMBOL_GPL(qeth_init_qdio_queues); | |
2848 | ||
cef6ff22 | 2849 | static __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type) |
4a71df50 FB |
2850 | { |
2851 | switch (link_type) { | |
2852 | case QETH_LINK_TYPE_HSTR: | |
2853 | return 2; | |
2854 | default: | |
2855 | return 1; | |
2856 | } | |
2857 | } | |
2858 | ||
2859 | static void qeth_fill_ipacmd_header(struct qeth_card *card, | |
2860 | struct qeth_ipa_cmd *cmd, __u8 command, | |
2861 | enum qeth_prot_versions prot) | |
2862 | { | |
2863 | memset(cmd, 0, sizeof(struct qeth_ipa_cmd)); | |
2864 | cmd->hdr.command = command; | |
2865 | cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST; | |
2866 | cmd->hdr.seqno = card->seqno.ipa; | |
2867 | cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type); | |
2868 | cmd->hdr.rel_adapter_no = (__u8) card->info.portno; | |
2869 | if (card->options.layer2) | |
2870 | cmd->hdr.prim_version_no = 2; | |
2871 | else | |
2872 | cmd->hdr.prim_version_no = 1; | |
2873 | cmd->hdr.param_count = 1; | |
2874 | cmd->hdr.prot_version = prot; | |
2875 | cmd->hdr.ipa_supported = 0; | |
2876 | cmd->hdr.ipa_enabled = 0; | |
2877 | } | |
2878 | ||
2879 | struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card, | |
2880 | enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot) | |
2881 | { | |
2882 | struct qeth_cmd_buffer *iob; | |
2883 | struct qeth_ipa_cmd *cmd; | |
2884 | ||
1aec42bc TR |
2885 | iob = qeth_get_buffer(&card->write); |
2886 | if (iob) { | |
2887 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
2888 | qeth_fill_ipacmd_header(card, cmd, ipacmd, prot); | |
2889 | } else { | |
2890 | dev_warn(&card->gdev->dev, | |
2891 | "The qeth driver ran out of channel command buffers\n"); | |
2892 | QETH_DBF_MESSAGE(1, "%s The qeth driver ran out of channel command buffers", | |
2893 | dev_name(&card->gdev->dev)); | |
2894 | } | |
4a71df50 FB |
2895 | |
2896 | return iob; | |
2897 | } | |
2898 | EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer); | |
2899 | ||
2900 | void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, | |
2901 | char prot_type) | |
2902 | { | |
2903 | memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); | |
2904 | memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1); | |
2905 | memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), | |
2906 | &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); | |
2907 | } | |
2908 | EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd); | |
2909 | ||
efbbc1d5 EC |
2910 | /** |
2911 | * qeth_send_ipa_cmd() - send an IPA command | |
2912 | * | |
2913 | * See qeth_send_control_data() for explanation of the arguments. | |
2914 | */ | |
2915 | ||
4a71df50 FB |
2916 | int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, |
2917 | int (*reply_cb)(struct qeth_card *, struct qeth_reply*, | |
2918 | unsigned long), | |
2919 | void *reply_param) | |
2920 | { | |
2921 | int rc; | |
2922 | char prot_type; | |
4a71df50 | 2923 | |
847a50fd | 2924 | QETH_CARD_TEXT(card, 4, "sendipa"); |
4a71df50 FB |
2925 | |
2926 | if (card->options.layer2) | |
2927 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
2928 | prot_type = QETH_PROT_OSN2; | |
2929 | else | |
2930 | prot_type = QETH_PROT_LAYER2; | |
2931 | else | |
2932 | prot_type = QETH_PROT_TCPIP; | |
2933 | qeth_prepare_ipa_cmd(card, iob, prot_type); | |
d11ba0c4 PT |
2934 | rc = qeth_send_control_data(card, IPA_CMD_LENGTH, |
2935 | iob, reply_cb, reply_param); | |
908abbb5 UB |
2936 | if (rc == -ETIME) { |
2937 | qeth_clear_ipacmd_list(card); | |
2938 | qeth_schedule_recovery(card); | |
2939 | } | |
4a71df50 FB |
2940 | return rc; |
2941 | } | |
2942 | EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd); | |
2943 | ||
10340510 | 2944 | static int qeth_send_startlan(struct qeth_card *card) |
4a71df50 FB |
2945 | { |
2946 | int rc; | |
70919e23 | 2947 | struct qeth_cmd_buffer *iob; |
4a71df50 | 2948 | |
d11ba0c4 | 2949 | QETH_DBF_TEXT(SETUP, 2, "strtlan"); |
4a71df50 | 2950 | |
70919e23 | 2951 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_STARTLAN, 0); |
1aec42bc TR |
2952 | if (!iob) |
2953 | return -ENOMEM; | |
70919e23 | 2954 | rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); |
4a71df50 FB |
2955 | return rc; |
2956 | } | |
4a71df50 | 2957 | |
eb3fb0ba | 2958 | static int qeth_default_setadapterparms_cb(struct qeth_card *card, |
4a71df50 FB |
2959 | struct qeth_reply *reply, unsigned long data) |
2960 | { | |
2961 | struct qeth_ipa_cmd *cmd; | |
2962 | ||
847a50fd | 2963 | QETH_CARD_TEXT(card, 4, "defadpcb"); |
4a71df50 FB |
2964 | |
2965 | cmd = (struct qeth_ipa_cmd *) data; | |
2966 | if (cmd->hdr.return_code == 0) | |
2967 | cmd->hdr.return_code = | |
2968 | cmd->data.setadapterparms.hdr.return_code; | |
2969 | return 0; | |
2970 | } | |
4a71df50 FB |
2971 | |
2972 | static int qeth_query_setadapterparms_cb(struct qeth_card *card, | |
2973 | struct qeth_reply *reply, unsigned long data) | |
2974 | { | |
2975 | struct qeth_ipa_cmd *cmd; | |
2976 | ||
847a50fd | 2977 | QETH_CARD_TEXT(card, 3, "quyadpcb"); |
4a71df50 FB |
2978 | |
2979 | cmd = (struct qeth_ipa_cmd *) data; | |
5113fec0 | 2980 | if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) { |
4a71df50 FB |
2981 | card->info.link_type = |
2982 | cmd->data.setadapterparms.data.query_cmds_supp.lan_type; | |
5113fec0 UB |
2983 | QETH_DBF_TEXT_(SETUP, 2, "lnk %d", card->info.link_type); |
2984 | } | |
4a71df50 FB |
2985 | card->options.adp.supported_funcs = |
2986 | cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds; | |
2987 | return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd); | |
2988 | } | |
2989 | ||
eb3fb0ba | 2990 | static struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card, |
4a71df50 FB |
2991 | __u32 command, __u32 cmdlen) |
2992 | { | |
2993 | struct qeth_cmd_buffer *iob; | |
2994 | struct qeth_ipa_cmd *cmd; | |
2995 | ||
2996 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS, | |
2997 | QETH_PROT_IPV4); | |
1aec42bc TR |
2998 | if (iob) { |
2999 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
3000 | cmd->data.setadapterparms.hdr.cmdlength = cmdlen; | |
3001 | cmd->data.setadapterparms.hdr.command_code = command; | |
3002 | cmd->data.setadapterparms.hdr.used_total = 1; | |
3003 | cmd->data.setadapterparms.hdr.seq_no = 1; | |
3004 | } | |
4a71df50 FB |
3005 | |
3006 | return iob; | |
3007 | } | |
4a71df50 FB |
3008 | |
3009 | int qeth_query_setadapterparms(struct qeth_card *card) | |
3010 | { | |
3011 | int rc; | |
3012 | struct qeth_cmd_buffer *iob; | |
3013 | ||
847a50fd | 3014 | QETH_CARD_TEXT(card, 3, "queryadp"); |
4a71df50 FB |
3015 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED, |
3016 | sizeof(struct qeth_ipacmd_setadpparms)); | |
1aec42bc TR |
3017 | if (!iob) |
3018 | return -ENOMEM; | |
4a71df50 FB |
3019 | rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL); |
3020 | return rc; | |
3021 | } | |
3022 | EXPORT_SYMBOL_GPL(qeth_query_setadapterparms); | |
3023 | ||
1da74b1c FB |
3024 | static int qeth_query_ipassists_cb(struct qeth_card *card, |
3025 | struct qeth_reply *reply, unsigned long data) | |
3026 | { | |
3027 | struct qeth_ipa_cmd *cmd; | |
3028 | ||
3029 | QETH_DBF_TEXT(SETUP, 2, "qipasscb"); | |
3030 | ||
3031 | cmd = (struct qeth_ipa_cmd *) data; | |
a134884a SR |
3032 | |
3033 | switch (cmd->hdr.return_code) { | |
3034 | case IPA_RC_NOTSUPP: | |
3035 | case IPA_RC_L2_UNSUPPORTED_CMD: | |
3036 | QETH_DBF_TEXT(SETUP, 2, "ipaunsup"); | |
3037 | card->options.ipa4.supported_funcs |= IPA_SETADAPTERPARMS; | |
3038 | card->options.ipa6.supported_funcs |= IPA_SETADAPTERPARMS; | |
3039 | return -0; | |
3040 | default: | |
3041 | if (cmd->hdr.return_code) { | |
3042 | QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Unhandled " | |
3043 | "rc=%d\n", | |
3044 | dev_name(&card->gdev->dev), | |
3045 | cmd->hdr.return_code); | |
3046 | return 0; | |
3047 | } | |
3048 | } | |
3049 | ||
1da74b1c FB |
3050 | if (cmd->hdr.prot_version == QETH_PROT_IPV4) { |
3051 | card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported; | |
3052 | card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled; | |
a134884a | 3053 | } else if (cmd->hdr.prot_version == QETH_PROT_IPV6) { |
1da74b1c FB |
3054 | card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported; |
3055 | card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled; | |
a134884a SR |
3056 | } else |
3057 | QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Flawed LIC detected" | |
3058 | "\n", dev_name(&card->gdev->dev)); | |
1da74b1c FB |
3059 | return 0; |
3060 | } | |
3061 | ||
3062 | int qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot) | |
3063 | { | |
3064 | int rc; | |
3065 | struct qeth_cmd_buffer *iob; | |
3066 | ||
3067 | QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot); | |
3068 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot); | |
1aec42bc TR |
3069 | if (!iob) |
3070 | return -ENOMEM; | |
1da74b1c FB |
3071 | rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL); |
3072 | return rc; | |
3073 | } | |
3074 | EXPORT_SYMBOL_GPL(qeth_query_ipassists); | |
3075 | ||
45cbb2e4 SR |
3076 | static int qeth_query_switch_attributes_cb(struct qeth_card *card, |
3077 | struct qeth_reply *reply, unsigned long data) | |
3078 | { | |
3079 | struct qeth_ipa_cmd *cmd; | |
3080 | struct qeth_switch_info *sw_info; | |
3081 | struct qeth_query_switch_attributes *attrs; | |
3082 | ||
3083 | QETH_CARD_TEXT(card, 2, "qswiatcb"); | |
3084 | cmd = (struct qeth_ipa_cmd *) data; | |
3085 | sw_info = (struct qeth_switch_info *)reply->param; | |
3086 | if (cmd->data.setadapterparms.hdr.return_code == 0) { | |
3087 | attrs = &cmd->data.setadapterparms.data.query_switch_attributes; | |
3088 | sw_info->capabilities = attrs->capabilities; | |
3089 | sw_info->settings = attrs->settings; | |
3090 | QETH_CARD_TEXT_(card, 2, "%04x%04x", sw_info->capabilities, | |
3091 | sw_info->settings); | |
3092 | } | |
3093 | qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd); | |
3094 | ||
3095 | return 0; | |
3096 | } | |
3097 | ||
3098 | int qeth_query_switch_attributes(struct qeth_card *card, | |
3099 | struct qeth_switch_info *sw_info) | |
3100 | { | |
3101 | struct qeth_cmd_buffer *iob; | |
3102 | ||
3103 | QETH_CARD_TEXT(card, 2, "qswiattr"); | |
3104 | if (!qeth_adp_supported(card, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES)) | |
3105 | return -EOPNOTSUPP; | |
3106 | if (!netif_carrier_ok(card->dev)) | |
3107 | return -ENOMEDIUM; | |
3108 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES, | |
3109 | sizeof(struct qeth_ipacmd_setadpparms_hdr)); | |
1aec42bc TR |
3110 | if (!iob) |
3111 | return -ENOMEM; | |
45cbb2e4 SR |
3112 | return qeth_send_ipa_cmd(card, iob, |
3113 | qeth_query_switch_attributes_cb, sw_info); | |
3114 | } | |
3115 | EXPORT_SYMBOL_GPL(qeth_query_switch_attributes); | |
3116 | ||
1da74b1c FB |
3117 | static int qeth_query_setdiagass_cb(struct qeth_card *card, |
3118 | struct qeth_reply *reply, unsigned long data) | |
3119 | { | |
3120 | struct qeth_ipa_cmd *cmd; | |
3121 | __u16 rc; | |
3122 | ||
3123 | cmd = (struct qeth_ipa_cmd *)data; | |
3124 | rc = cmd->hdr.return_code; | |
3125 | if (rc) | |
3126 | QETH_CARD_TEXT_(card, 2, "diagq:%x", rc); | |
3127 | else | |
3128 | card->info.diagass_support = cmd->data.diagass.ext; | |
3129 | return 0; | |
3130 | } | |
3131 | ||
3132 | static int qeth_query_setdiagass(struct qeth_card *card) | |
3133 | { | |
3134 | struct qeth_cmd_buffer *iob; | |
3135 | struct qeth_ipa_cmd *cmd; | |
3136 | ||
3137 | QETH_DBF_TEXT(SETUP, 2, "qdiagass"); | |
3138 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0); | |
1aec42bc TR |
3139 | if (!iob) |
3140 | return -ENOMEM; | |
1da74b1c FB |
3141 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
3142 | cmd->data.diagass.subcmd_len = 16; | |
3143 | cmd->data.diagass.subcmd = QETH_DIAGS_CMD_QUERY; | |
3144 | return qeth_send_ipa_cmd(card, iob, qeth_query_setdiagass_cb, NULL); | |
3145 | } | |
3146 | ||
3147 | static void qeth_get_trap_id(struct qeth_card *card, struct qeth_trap_id *tid) | |
3148 | { | |
3149 | unsigned long info = get_zeroed_page(GFP_KERNEL); | |
3150 | struct sysinfo_2_2_2 *info222 = (struct sysinfo_2_2_2 *)info; | |
3151 | struct sysinfo_3_2_2 *info322 = (struct sysinfo_3_2_2 *)info; | |
3152 | struct ccw_dev_id ccwid; | |
caf757c6 | 3153 | int level; |
1da74b1c FB |
3154 | |
3155 | tid->chpid = card->info.chpid; | |
3156 | ccw_device_get_id(CARD_RDEV(card), &ccwid); | |
3157 | tid->ssid = ccwid.ssid; | |
3158 | tid->devno = ccwid.devno; | |
3159 | if (!info) | |
3160 | return; | |
caf757c6 HC |
3161 | level = stsi(NULL, 0, 0, 0); |
3162 | if ((level >= 2) && (stsi(info222, 2, 2, 2) == 0)) | |
1da74b1c | 3163 | tid->lparnr = info222->lpar_number; |
caf757c6 | 3164 | if ((level >= 3) && (stsi(info322, 3, 2, 2) == 0)) { |
1da74b1c FB |
3165 | EBCASC(info322->vm[0].name, sizeof(info322->vm[0].name)); |
3166 | memcpy(tid->vmname, info322->vm[0].name, sizeof(tid->vmname)); | |
3167 | } | |
3168 | free_page(info); | |
3169 | return; | |
3170 | } | |
3171 | ||
3172 | static int qeth_hw_trap_cb(struct qeth_card *card, | |
3173 | struct qeth_reply *reply, unsigned long data) | |
3174 | { | |
3175 | struct qeth_ipa_cmd *cmd; | |
3176 | __u16 rc; | |
3177 | ||
3178 | cmd = (struct qeth_ipa_cmd *)data; | |
3179 | rc = cmd->hdr.return_code; | |
3180 | if (rc) | |
3181 | QETH_CARD_TEXT_(card, 2, "trapc:%x", rc); | |
3182 | return 0; | |
3183 | } | |
3184 | ||
3185 | int qeth_hw_trap(struct qeth_card *card, enum qeth_diags_trap_action action) | |
3186 | { | |
3187 | struct qeth_cmd_buffer *iob; | |
3188 | struct qeth_ipa_cmd *cmd; | |
3189 | ||
3190 | QETH_DBF_TEXT(SETUP, 2, "diagtrap"); | |
3191 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0); | |
1aec42bc TR |
3192 | if (!iob) |
3193 | return -ENOMEM; | |
1da74b1c FB |
3194 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
3195 | cmd->data.diagass.subcmd_len = 80; | |
3196 | cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRAP; | |
3197 | cmd->data.diagass.type = 1; | |
3198 | cmd->data.diagass.action = action; | |
3199 | switch (action) { | |
3200 | case QETH_DIAGS_TRAP_ARM: | |
3201 | cmd->data.diagass.options = 0x0003; | |
3202 | cmd->data.diagass.ext = 0x00010000 + | |
3203 | sizeof(struct qeth_trap_id); | |
3204 | qeth_get_trap_id(card, | |
3205 | (struct qeth_trap_id *)cmd->data.diagass.cdata); | |
3206 | break; | |
3207 | case QETH_DIAGS_TRAP_DISARM: | |
3208 | cmd->data.diagass.options = 0x0001; | |
3209 | break; | |
3210 | case QETH_DIAGS_TRAP_CAPTURE: | |
3211 | break; | |
3212 | } | |
3213 | return qeth_send_ipa_cmd(card, iob, qeth_hw_trap_cb, NULL); | |
3214 | } | |
3215 | EXPORT_SYMBOL_GPL(qeth_hw_trap); | |
3216 | ||
d73ef324 JW |
3217 | static int qeth_check_qdio_errors(struct qeth_card *card, |
3218 | struct qdio_buffer *buf, | |
3219 | unsigned int qdio_error, | |
3220 | const char *dbftext) | |
4a71df50 | 3221 | { |
779e6e1c | 3222 | if (qdio_error) { |
847a50fd | 3223 | QETH_CARD_TEXT(card, 2, dbftext); |
38593d01 | 3224 | QETH_CARD_TEXT_(card, 2, " F15=%02X", |
3ec90878 | 3225 | buf->element[15].sflags); |
38593d01 | 3226 | QETH_CARD_TEXT_(card, 2, " F14=%02X", |
3ec90878 | 3227 | buf->element[14].sflags); |
38593d01 | 3228 | QETH_CARD_TEXT_(card, 2, " qerr=%X", qdio_error); |
3ec90878 | 3229 | if ((buf->element[15].sflags) == 0x12) { |
76b11f8e UB |
3230 | card->stats.rx_dropped++; |
3231 | return 0; | |
3232 | } else | |
3233 | return 1; | |
4a71df50 FB |
3234 | } |
3235 | return 0; | |
3236 | } | |
4a71df50 | 3237 | |
d73ef324 | 3238 | static void qeth_queue_input_buffer(struct qeth_card *card, int index) |
4a71df50 FB |
3239 | { |
3240 | struct qeth_qdio_q *queue = card->qdio.in_q; | |
b3332930 | 3241 | struct list_head *lh; |
4a71df50 FB |
3242 | int count; |
3243 | int i; | |
3244 | int rc; | |
3245 | int newcount = 0; | |
3246 | ||
4a71df50 FB |
3247 | count = (index < queue->next_buf_to_init)? |
3248 | card->qdio.in_buf_pool.buf_count - | |
3249 | (queue->next_buf_to_init - index) : | |
3250 | card->qdio.in_buf_pool.buf_count - | |
3251 | (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index); | |
3252 | /* only requeue at a certain threshold to avoid SIGAs */ | |
3253 | if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) { | |
3254 | for (i = queue->next_buf_to_init; | |
3255 | i < queue->next_buf_to_init + count; ++i) { | |
3256 | if (qeth_init_input_buffer(card, | |
3257 | &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) { | |
3258 | break; | |
3259 | } else { | |
3260 | newcount++; | |
3261 | } | |
3262 | } | |
3263 | ||
3264 | if (newcount < count) { | |
3265 | /* we are in memory shortage so we switch back to | |
3266 | traditional skb allocation and drop packages */ | |
4a71df50 FB |
3267 | atomic_set(&card->force_alloc_skb, 3); |
3268 | count = newcount; | |
3269 | } else { | |
4a71df50 FB |
3270 | atomic_add_unless(&card->force_alloc_skb, -1, 0); |
3271 | } | |
3272 | ||
b3332930 FB |
3273 | if (!count) { |
3274 | i = 0; | |
3275 | list_for_each(lh, &card->qdio.in_buf_pool.entry_list) | |
3276 | i++; | |
3277 | if (i == card->qdio.in_buf_pool.buf_count) { | |
3278 | QETH_CARD_TEXT(card, 2, "qsarbw"); | |
3279 | card->reclaim_index = index; | |
3280 | schedule_delayed_work( | |
3281 | &card->buffer_reclaim_work, | |
3282 | QETH_RECLAIM_WORK_TIME); | |
3283 | } | |
3284 | return; | |
3285 | } | |
3286 | ||
4a71df50 FB |
3287 | /* |
3288 | * according to old code it should be avoided to requeue all | |
3289 | * 128 buffers in order to benefit from PCI avoidance. | |
3290 | * this function keeps at least one buffer (the buffer at | |
3291 | * 'index') un-requeued -> this buffer is the first buffer that | |
3292 | * will be requeued the next time | |
3293 | */ | |
3294 | if (card->options.performance_stats) { | |
3295 | card->perf_stats.inbound_do_qdio_cnt++; | |
3296 | card->perf_stats.inbound_do_qdio_start_time = | |
3297 | qeth_get_micros(); | |
3298 | } | |
779e6e1c JG |
3299 | rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, |
3300 | queue->next_buf_to_init, count); | |
4a71df50 FB |
3301 | if (card->options.performance_stats) |
3302 | card->perf_stats.inbound_do_qdio_time += | |
3303 | qeth_get_micros() - | |
3304 | card->perf_stats.inbound_do_qdio_start_time; | |
3305 | if (rc) { | |
847a50fd | 3306 | QETH_CARD_TEXT(card, 2, "qinberr"); |
4a71df50 FB |
3307 | } |
3308 | queue->next_buf_to_init = (queue->next_buf_to_init + count) % | |
3309 | QDIO_MAX_BUFFERS_PER_Q; | |
3310 | } | |
3311 | } | |
d73ef324 JW |
3312 | |
3313 | static void qeth_buffer_reclaim_work(struct work_struct *work) | |
3314 | { | |
3315 | struct qeth_card *card = container_of(work, struct qeth_card, | |
3316 | buffer_reclaim_work.work); | |
3317 | ||
3318 | QETH_CARD_TEXT_(card, 2, "brw:%x", card->reclaim_index); | |
3319 | qeth_queue_input_buffer(card, card->reclaim_index); | |
3320 | } | |
4a71df50 | 3321 | |
d7a39937 | 3322 | static void qeth_handle_send_error(struct qeth_card *card, |
779e6e1c | 3323 | struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err) |
4a71df50 | 3324 | { |
3ec90878 | 3325 | int sbalf15 = buffer->buffer->element[15].sflags; |
4a71df50 | 3326 | |
847a50fd | 3327 | QETH_CARD_TEXT(card, 6, "hdsnderr"); |
58490f18 KDW |
3328 | if (card->info.type == QETH_CARD_TYPE_IQD) { |
3329 | if (sbalf15 == 0) { | |
3330 | qdio_err = 0; | |
3331 | } else { | |
3332 | qdio_err = 1; | |
3333 | } | |
3334 | } | |
76b11f8e | 3335 | qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr"); |
d303b6fd JG |
3336 | |
3337 | if (!qdio_err) | |
d7a39937 | 3338 | return; |
d303b6fd JG |
3339 | |
3340 | if ((sbalf15 >= 15) && (sbalf15 <= 31)) | |
d7a39937 | 3341 | return; |
d303b6fd | 3342 | |
847a50fd CO |
3343 | QETH_CARD_TEXT(card, 1, "lnkfail"); |
3344 | QETH_CARD_TEXT_(card, 1, "%04x %02x", | |
d303b6fd | 3345 | (u16)qdio_err, (u8)sbalf15); |
4a71df50 FB |
3346 | } |
3347 | ||
664e42ac JW |
3348 | /** |
3349 | * qeth_prep_flush_pack_buffer - Prepares flushing of a packing buffer. | |
3350 | * @queue: queue to check for packing buffer | |
3351 | * | |
3352 | * Returns number of buffers that were prepared for flush. | |
3353 | */ | |
3354 | static int qeth_prep_flush_pack_buffer(struct qeth_qdio_out_q *queue) | |
3355 | { | |
3356 | struct qeth_qdio_out_buffer *buffer; | |
3357 | ||
3358 | buffer = queue->bufs[queue->next_buf_to_fill]; | |
3359 | if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) && | |
3360 | (buffer->next_element_to_fill > 0)) { | |
3361 | /* it's a packing buffer */ | |
3362 | atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); | |
3363 | queue->next_buf_to_fill = | |
3364 | (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q; | |
3365 | return 1; | |
3366 | } | |
3367 | return 0; | |
3368 | } | |
3369 | ||
4a71df50 FB |
3370 | /* |
3371 | * Switched to packing state if the number of used buffers on a queue | |
3372 | * reaches a certain limit. | |
3373 | */ | |
3374 | static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue) | |
3375 | { | |
3376 | if (!queue->do_pack) { | |
3377 | if (atomic_read(&queue->used_buffers) | |
3378 | >= QETH_HIGH_WATERMARK_PACK){ | |
3379 | /* switch non-PACKING -> PACKING */ | |
847a50fd | 3380 | QETH_CARD_TEXT(queue->card, 6, "np->pack"); |
4a71df50 FB |
3381 | if (queue->card->options.performance_stats) |
3382 | queue->card->perf_stats.sc_dp_p++; | |
3383 | queue->do_pack = 1; | |
3384 | } | |
3385 | } | |
3386 | } | |
3387 | ||
3388 | /* | |
3389 | * Switches from packing to non-packing mode. If there is a packing | |
3390 | * buffer on the queue this buffer will be prepared to be flushed. | |
3391 | * In that case 1 is returned to inform the caller. If no buffer | |
3392 | * has to be flushed, zero is returned. | |
3393 | */ | |
3394 | static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue) | |
3395 | { | |
4a71df50 FB |
3396 | if (queue->do_pack) { |
3397 | if (atomic_read(&queue->used_buffers) | |
3398 | <= QETH_LOW_WATERMARK_PACK) { | |
3399 | /* switch PACKING -> non-PACKING */ | |
847a50fd | 3400 | QETH_CARD_TEXT(queue->card, 6, "pack->np"); |
4a71df50 FB |
3401 | if (queue->card->options.performance_stats) |
3402 | queue->card->perf_stats.sc_p_dp++; | |
3403 | queue->do_pack = 0; | |
664e42ac | 3404 | return qeth_prep_flush_pack_buffer(queue); |
4a71df50 FB |
3405 | } |
3406 | } | |
4a71df50 FB |
3407 | return 0; |
3408 | } | |
3409 | ||
779e6e1c JG |
3410 | static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index, |
3411 | int count) | |
4a71df50 FB |
3412 | { |
3413 | struct qeth_qdio_out_buffer *buf; | |
3414 | int rc; | |
3415 | int i; | |
3416 | unsigned int qdio_flags; | |
3417 | ||
4a71df50 | 3418 | for (i = index; i < index + count; ++i) { |
0da9581d EL |
3419 | int bidx = i % QDIO_MAX_BUFFERS_PER_Q; |
3420 | buf = queue->bufs[bidx]; | |
3ec90878 JG |
3421 | buf->buffer->element[buf->next_element_to_fill - 1].eflags |= |
3422 | SBAL_EFLAGS_LAST_ENTRY; | |
4a71df50 | 3423 | |
0da9581d EL |
3424 | if (queue->bufstates) |
3425 | queue->bufstates[bidx].user = buf; | |
3426 | ||
4a71df50 FB |
3427 | if (queue->card->info.type == QETH_CARD_TYPE_IQD) |
3428 | continue; | |
3429 | ||
3430 | if (!queue->do_pack) { | |
3431 | if ((atomic_read(&queue->used_buffers) >= | |
3432 | (QETH_HIGH_WATERMARK_PACK - | |
3433 | QETH_WATERMARK_PACK_FUZZ)) && | |
3434 | !atomic_read(&queue->set_pci_flags_count)) { | |
3435 | /* it's likely that we'll go to packing | |
3436 | * mode soon */ | |
3437 | atomic_inc(&queue->set_pci_flags_count); | |
3ec90878 | 3438 | buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ; |
4a71df50 FB |
3439 | } |
3440 | } else { | |
3441 | if (!atomic_read(&queue->set_pci_flags_count)) { | |
3442 | /* | |
3443 | * there's no outstanding PCI any more, so we | |
3444 | * have to request a PCI to be sure the the PCI | |
3445 | * will wake at some time in the future then we | |
3446 | * can flush packed buffers that might still be | |
3447 | * hanging around, which can happen if no | |
3448 | * further send was requested by the stack | |
3449 | */ | |
3450 | atomic_inc(&queue->set_pci_flags_count); | |
3ec90878 | 3451 | buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ; |
4a71df50 FB |
3452 | } |
3453 | } | |
3454 | } | |
3455 | ||
3e66bab3 | 3456 | netif_trans_update(queue->card->dev); |
4a71df50 FB |
3457 | if (queue->card->options.performance_stats) { |
3458 | queue->card->perf_stats.outbound_do_qdio_cnt++; | |
3459 | queue->card->perf_stats.outbound_do_qdio_start_time = | |
3460 | qeth_get_micros(); | |
3461 | } | |
3462 | qdio_flags = QDIO_FLAG_SYNC_OUTPUT; | |
4a71df50 FB |
3463 | if (atomic_read(&queue->set_pci_flags_count)) |
3464 | qdio_flags |= QDIO_FLAG_PCI_OUT; | |
3465 | rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags, | |
779e6e1c | 3466 | queue->queue_no, index, count); |
4a71df50 FB |
3467 | if (queue->card->options.performance_stats) |
3468 | queue->card->perf_stats.outbound_do_qdio_time += | |
3469 | qeth_get_micros() - | |
3470 | queue->card->perf_stats.outbound_do_qdio_start_time; | |
aa3a41d0 | 3471 | atomic_add(count, &queue->used_buffers); |
4a71df50 | 3472 | if (rc) { |
d303b6fd JG |
3473 | queue->card->stats.tx_errors += count; |
3474 | /* ignore temporary SIGA errors without busy condition */ | |
1549d13f | 3475 | if (rc == -ENOBUFS) |
d303b6fd | 3476 | return; |
847a50fd | 3477 | QETH_CARD_TEXT(queue->card, 2, "flushbuf"); |
0da9581d EL |
3478 | QETH_CARD_TEXT_(queue->card, 2, " q%d", queue->queue_no); |
3479 | QETH_CARD_TEXT_(queue->card, 2, " idx%d", index); | |
3480 | QETH_CARD_TEXT_(queue->card, 2, " c%d", count); | |
847a50fd | 3481 | QETH_CARD_TEXT_(queue->card, 2, " err%d", rc); |
d303b6fd | 3482 | |
4a71df50 FB |
3483 | /* this must not happen under normal circumstances. if it |
3484 | * happens something is really wrong -> recover */ | |
3485 | qeth_schedule_recovery(queue->card); | |
3486 | return; | |
3487 | } | |
4a71df50 FB |
3488 | if (queue->card->options.performance_stats) |
3489 | queue->card->perf_stats.bufs_sent += count; | |
3490 | } | |
3491 | ||
3492 | static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue) | |
3493 | { | |
3494 | int index; | |
3495 | int flush_cnt = 0; | |
3496 | int q_was_packing = 0; | |
3497 | ||
3498 | /* | |
3499 | * check if weed have to switch to non-packing mode or if | |
3500 | * we have to get a pci flag out on the queue | |
3501 | */ | |
3502 | if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) || | |
3503 | !atomic_read(&queue->set_pci_flags_count)) { | |
3504 | if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) == | |
3505 | QETH_OUT_Q_UNLOCKED) { | |
3506 | /* | |
3507 | * If we get in here, there was no action in | |
3508 | * do_send_packet. So, we check if there is a | |
3509 | * packing buffer to be flushed here. | |
3510 | */ | |
3511 | netif_stop_queue(queue->card->dev); | |
3512 | index = queue->next_buf_to_fill; | |
3513 | q_was_packing = queue->do_pack; | |
3514 | /* queue->do_pack may change */ | |
3515 | barrier(); | |
3516 | flush_cnt += qeth_switch_to_nonpacking_if_needed(queue); | |
3517 | if (!flush_cnt && | |
3518 | !atomic_read(&queue->set_pci_flags_count)) | |
664e42ac | 3519 | flush_cnt += qeth_prep_flush_pack_buffer(queue); |
4a71df50 FB |
3520 | if (queue->card->options.performance_stats && |
3521 | q_was_packing) | |
3522 | queue->card->perf_stats.bufs_sent_pack += | |
3523 | flush_cnt; | |
3524 | if (flush_cnt) | |
779e6e1c | 3525 | qeth_flush_buffers(queue, index, flush_cnt); |
4a71df50 FB |
3526 | atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); |
3527 | } | |
3528 | } | |
3529 | } | |
3530 | ||
a1c3ed4c FB |
3531 | void qeth_qdio_start_poll(struct ccw_device *ccwdev, int queue, |
3532 | unsigned long card_ptr) | |
3533 | { | |
3534 | struct qeth_card *card = (struct qeth_card *)card_ptr; | |
3535 | ||
0cffef48 | 3536 | if (card->dev && (card->dev->flags & IFF_UP)) |
a1c3ed4c FB |
3537 | napi_schedule(&card->napi); |
3538 | } | |
3539 | EXPORT_SYMBOL_GPL(qeth_qdio_start_poll); | |
3540 | ||
0da9581d EL |
3541 | int qeth_configure_cq(struct qeth_card *card, enum qeth_cq cq) |
3542 | { | |
3543 | int rc; | |
3544 | ||
3545 | if (card->options.cq == QETH_CQ_NOTAVAILABLE) { | |
3546 | rc = -1; | |
3547 | goto out; | |
3548 | } else { | |
3549 | if (card->options.cq == cq) { | |
3550 | rc = 0; | |
3551 | goto out; | |
3552 | } | |
3553 | ||
3554 | if (card->state != CARD_STATE_DOWN && | |
3555 | card->state != CARD_STATE_RECOVER) { | |
3556 | rc = -1; | |
3557 | goto out; | |
3558 | } | |
3559 | ||
3560 | qeth_free_qdio_buffers(card); | |
3561 | card->options.cq = cq; | |
3562 | rc = 0; | |
3563 | } | |
3564 | out: | |
3565 | return rc; | |
3566 | ||
3567 | } | |
3568 | EXPORT_SYMBOL_GPL(qeth_configure_cq); | |
3569 | ||
3570 | ||
3571 | static void qeth_qdio_cq_handler(struct qeth_card *card, | |
3572 | unsigned int qdio_err, | |
3573 | unsigned int queue, int first_element, int count) { | |
3574 | struct qeth_qdio_q *cq = card->qdio.c_q; | |
3575 | int i; | |
3576 | int rc; | |
3577 | ||
3578 | if (!qeth_is_cq(card, queue)) | |
3579 | goto out; | |
3580 | ||
3581 | QETH_CARD_TEXT_(card, 5, "qcqhe%d", first_element); | |
3582 | QETH_CARD_TEXT_(card, 5, "qcqhc%d", count); | |
3583 | QETH_CARD_TEXT_(card, 5, "qcqherr%d", qdio_err); | |
3584 | ||
3585 | if (qdio_err) { | |
3586 | netif_stop_queue(card->dev); | |
3587 | qeth_schedule_recovery(card); | |
3588 | goto out; | |
3589 | } | |
3590 | ||
3591 | if (card->options.performance_stats) { | |
3592 | card->perf_stats.cq_cnt++; | |
3593 | card->perf_stats.cq_start_time = qeth_get_micros(); | |
3594 | } | |
3595 | ||
3596 | for (i = first_element; i < first_element + count; ++i) { | |
3597 | int bidx = i % QDIO_MAX_BUFFERS_PER_Q; | |
6d284bde | 3598 | struct qdio_buffer *buffer = cq->qdio_bufs[bidx]; |
0da9581d EL |
3599 | int e; |
3600 | ||
3601 | e = 0; | |
903e4853 UB |
3602 | while ((e < QDIO_MAX_ELEMENTS_PER_BUFFER) && |
3603 | buffer->element[e].addr) { | |
0da9581d EL |
3604 | unsigned long phys_aob_addr; |
3605 | ||
3606 | phys_aob_addr = (unsigned long) buffer->element[e].addr; | |
3607 | qeth_qdio_handle_aob(card, phys_aob_addr); | |
3608 | buffer->element[e].addr = NULL; | |
3609 | buffer->element[e].eflags = 0; | |
3610 | buffer->element[e].sflags = 0; | |
3611 | buffer->element[e].length = 0; | |
3612 | ||
3613 | ++e; | |
3614 | } | |
3615 | ||
3616 | buffer->element[15].eflags = 0; | |
3617 | buffer->element[15].sflags = 0; | |
3618 | } | |
3619 | rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, queue, | |
3620 | card->qdio.c_q->next_buf_to_init, | |
3621 | count); | |
3622 | if (rc) { | |
3623 | dev_warn(&card->gdev->dev, | |
3624 | "QDIO reported an error, rc=%i\n", rc); | |
3625 | QETH_CARD_TEXT(card, 2, "qcqherr"); | |
3626 | } | |
3627 | card->qdio.c_q->next_buf_to_init = (card->qdio.c_q->next_buf_to_init | |
3628 | + count) % QDIO_MAX_BUFFERS_PER_Q; | |
3629 | ||
3630 | netif_wake_queue(card->dev); | |
3631 | ||
3632 | if (card->options.performance_stats) { | |
3633 | int delta_t = qeth_get_micros(); | |
3634 | delta_t -= card->perf_stats.cq_start_time; | |
3635 | card->perf_stats.cq_time += delta_t; | |
3636 | } | |
3637 | out: | |
3638 | return; | |
3639 | } | |
3640 | ||
a1c3ed4c | 3641 | void qeth_qdio_input_handler(struct ccw_device *ccwdev, unsigned int qdio_err, |
0da9581d | 3642 | unsigned int queue, int first_elem, int count, |
a1c3ed4c FB |
3643 | unsigned long card_ptr) |
3644 | { | |
3645 | struct qeth_card *card = (struct qeth_card *)card_ptr; | |
3646 | ||
0da9581d EL |
3647 | QETH_CARD_TEXT_(card, 2, "qihq%d", queue); |
3648 | QETH_CARD_TEXT_(card, 2, "qiec%d", qdio_err); | |
3649 | ||
3650 | if (qeth_is_cq(card, queue)) | |
3651 | qeth_qdio_cq_handler(card, qdio_err, queue, first_elem, count); | |
3652 | else if (qdio_err) | |
a1c3ed4c | 3653 | qeth_schedule_recovery(card); |
0da9581d EL |
3654 | |
3655 | ||
a1c3ed4c FB |
3656 | } |
3657 | EXPORT_SYMBOL_GPL(qeth_qdio_input_handler); | |
3658 | ||
779e6e1c JG |
3659 | void qeth_qdio_output_handler(struct ccw_device *ccwdev, |
3660 | unsigned int qdio_error, int __queue, int first_element, | |
3661 | int count, unsigned long card_ptr) | |
4a71df50 FB |
3662 | { |
3663 | struct qeth_card *card = (struct qeth_card *) card_ptr; | |
3664 | struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue]; | |
3665 | struct qeth_qdio_out_buffer *buffer; | |
3666 | int i; | |
3667 | ||
847a50fd | 3668 | QETH_CARD_TEXT(card, 6, "qdouhdl"); |
1549d13f | 3669 | if (qdio_error & QDIO_ERROR_FATAL) { |
847a50fd | 3670 | QETH_CARD_TEXT(card, 2, "achkcond"); |
779e6e1c JG |
3671 | netif_stop_queue(card->dev); |
3672 | qeth_schedule_recovery(card); | |
3673 | return; | |
4a71df50 FB |
3674 | } |
3675 | if (card->options.performance_stats) { | |
3676 | card->perf_stats.outbound_handler_cnt++; | |
3677 | card->perf_stats.outbound_handler_start_time = | |
3678 | qeth_get_micros(); | |
3679 | } | |
3680 | for (i = first_element; i < (first_element + count); ++i) { | |
0da9581d EL |
3681 | int bidx = i % QDIO_MAX_BUFFERS_PER_Q; |
3682 | buffer = queue->bufs[bidx]; | |
b67d801f | 3683 | qeth_handle_send_error(card, buffer, qdio_error); |
0da9581d EL |
3684 | |
3685 | if (queue->bufstates && | |
3686 | (queue->bufstates[bidx].flags & | |
3687 | QDIO_OUTBUF_STATE_FLAG_PENDING) != 0) { | |
18af5c17 | 3688 | WARN_ON_ONCE(card->options.cq != QETH_CQ_ENABLED); |
b3332930 FB |
3689 | |
3690 | if (atomic_cmpxchg(&buffer->state, | |
3691 | QETH_QDIO_BUF_PRIMED, | |
3692 | QETH_QDIO_BUF_PENDING) == | |
3693 | QETH_QDIO_BUF_PRIMED) { | |
3694 | qeth_notify_skbs(queue, buffer, | |
3695 | TX_NOTIFY_PENDING); | |
3696 | } | |
0da9581d EL |
3697 | buffer->aob = queue->bufstates[bidx].aob; |
3698 | QETH_CARD_TEXT_(queue->card, 5, "pel%d", bidx); | |
b3332930 | 3699 | QETH_CARD_TEXT(queue->card, 5, "aob"); |
0da9581d EL |
3700 | QETH_CARD_TEXT_(queue->card, 5, "%lx", |
3701 | virt_to_phys(buffer->aob)); | |
b3332930 FB |
3702 | if (qeth_init_qdio_out_buf(queue, bidx)) { |
3703 | QETH_CARD_TEXT(card, 2, "outofbuf"); | |
0da9581d | 3704 | qeth_schedule_recovery(card); |
b3332930 | 3705 | } |
0da9581d | 3706 | } else { |
b3332930 FB |
3707 | if (card->options.cq == QETH_CQ_ENABLED) { |
3708 | enum iucv_tx_notify n; | |
3709 | ||
3710 | n = qeth_compute_cq_notification( | |
3711 | buffer->buffer->element[15].sflags, 0); | |
3712 | qeth_notify_skbs(queue, buffer, n); | |
3713 | } | |
3714 | ||
0da9581d EL |
3715 | qeth_clear_output_buffer(queue, buffer, |
3716 | QETH_QDIO_BUF_EMPTY); | |
3717 | } | |
3718 | qeth_cleanup_handled_pending(queue, bidx, 0); | |
4a71df50 FB |
3719 | } |
3720 | atomic_sub(count, &queue->used_buffers); | |
3721 | /* check if we need to do something on this outbound queue */ | |
3722 | if (card->info.type != QETH_CARD_TYPE_IQD) | |
3723 | qeth_check_outbound_queue(queue); | |
3724 | ||
3725 | netif_wake_queue(queue->card->dev); | |
3726 | if (card->options.performance_stats) | |
3727 | card->perf_stats.outbound_handler_time += qeth_get_micros() - | |
3728 | card->perf_stats.outbound_handler_start_time; | |
3729 | } | |
3730 | EXPORT_SYMBOL_GPL(qeth_qdio_output_handler); | |
3731 | ||
70deb016 HW |
3732 | /* We cannot use outbound queue 3 for unicast packets on HiperSockets */ |
3733 | static inline int qeth_cut_iqd_prio(struct qeth_card *card, int queue_num) | |
3734 | { | |
3735 | if ((card->info.type == QETH_CARD_TYPE_IQD) && (queue_num == 3)) | |
3736 | return 2; | |
3737 | return queue_num; | |
3738 | } | |
3739 | ||
290b8348 SR |
3740 | /** |
3741 | * Note: Function assumes that we have 4 outbound queues. | |
3742 | */ | |
4a71df50 FB |
3743 | int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb, |
3744 | int ipv, int cast_type) | |
3745 | { | |
d66cb37e | 3746 | __be16 *tci; |
290b8348 SR |
3747 | u8 tos; |
3748 | ||
290b8348 SR |
3749 | if (cast_type && card->info.is_multicast_different) |
3750 | return card->info.is_multicast_different & | |
3751 | (card->qdio.no_out_queues - 1); | |
3752 | ||
3753 | switch (card->qdio.do_prio_queueing) { | |
3754 | case QETH_PRIO_Q_ING_TOS: | |
3755 | case QETH_PRIO_Q_ING_PREC: | |
3756 | switch (ipv) { | |
3757 | case 4: | |
3758 | tos = ipv4_get_dsfield(ip_hdr(skb)); | |
3759 | break; | |
3760 | case 6: | |
3761 | tos = ipv6_get_dsfield(ipv6_hdr(skb)); | |
3762 | break; | |
3763 | default: | |
3764 | return card->qdio.default_out_queue; | |
4a71df50 | 3765 | } |
290b8348 | 3766 | if (card->qdio.do_prio_queueing == QETH_PRIO_Q_ING_PREC) |
70deb016 | 3767 | return qeth_cut_iqd_prio(card, ~tos >> 6 & 3); |
290b8348 | 3768 | if (tos & IPTOS_MINCOST) |
70deb016 | 3769 | return qeth_cut_iqd_prio(card, 3); |
290b8348 SR |
3770 | if (tos & IPTOS_RELIABILITY) |
3771 | return 2; | |
3772 | if (tos & IPTOS_THROUGHPUT) | |
3773 | return 1; | |
3774 | if (tos & IPTOS_LOWDELAY) | |
3775 | return 0; | |
d66cb37e SR |
3776 | break; |
3777 | case QETH_PRIO_Q_ING_SKB: | |
3778 | if (skb->priority > 5) | |
3779 | return 0; | |
70deb016 | 3780 | return qeth_cut_iqd_prio(card, ~skb->priority >> 1 & 3); |
d66cb37e SR |
3781 | case QETH_PRIO_Q_ING_VLAN: |
3782 | tci = &((struct ethhdr *)skb->data)->h_proto; | |
6bee4e26 HW |
3783 | if (be16_to_cpu(*tci) == ETH_P_8021Q) |
3784 | return qeth_cut_iqd_prio(card, | |
3785 | ~be16_to_cpu(*(tci + 1)) >> (VLAN_PRIO_SHIFT + 1) & 3); | |
d66cb37e | 3786 | break; |
4a71df50 | 3787 | default: |
290b8348 | 3788 | break; |
4a71df50 | 3789 | } |
290b8348 | 3790 | return card->qdio.default_out_queue; |
4a71df50 FB |
3791 | } |
3792 | EXPORT_SYMBOL_GPL(qeth_get_priority_queue); | |
3793 | ||
2863c613 EC |
3794 | /** |
3795 | * qeth_get_elements_for_frags() - find number of SBALEs for skb frags. | |
3796 | * @skb: SKB address | |
3797 | * | |
3798 | * Returns the number of pages, and thus QDIO buffer elements, needed to cover | |
3799 | * fragmented part of the SKB. Returns zero for linear SKB. | |
3800 | */ | |
271648b4 FB |
3801 | int qeth_get_elements_for_frags(struct sk_buff *skb) |
3802 | { | |
2863c613 | 3803 | int cnt, elements = 0; |
271648b4 FB |
3804 | |
3805 | for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) { | |
2863c613 EC |
3806 | struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[cnt]; |
3807 | ||
3808 | elements += qeth_get_elements_for_range( | |
3809 | (addr_t)skb_frag_address(frag), | |
3810 | (addr_t)skb_frag_address(frag) + skb_frag_size(frag)); | |
271648b4 FB |
3811 | } |
3812 | return elements; | |
3813 | } | |
3814 | EXPORT_SYMBOL_GPL(qeth_get_elements_for_frags); | |
3815 | ||
2863c613 EC |
3816 | /** |
3817 | * qeth_get_elements_no() - find number of SBALEs for skb data, inc. frags. | |
3818 | * @card: qeth card structure, to check max. elems. | |
3819 | * @skb: SKB address | |
3820 | * @extra_elems: extra elems needed, to check against max. | |
7d969d2e | 3821 | * @data_offset: range starts at skb->data + data_offset |
2863c613 EC |
3822 | * |
3823 | * Returns the number of pages, and thus QDIO buffer elements, needed to cover | |
3824 | * skb data, including linear part and fragments. Checks if the result plus | |
3825 | * extra_elems fits under the limit for the card. Returns 0 if it does not. | |
3826 | * Note: extra_elems is not included in the returned result. | |
3827 | */ | |
065cc782 | 3828 | int qeth_get_elements_no(struct qeth_card *card, |
7d969d2e | 3829 | struct sk_buff *skb, int extra_elems, int data_offset) |
4a71df50 | 3830 | { |
2863c613 | 3831 | int elements = qeth_get_elements_for_range( |
7d969d2e | 3832 | (addr_t)skb->data + data_offset, |
2863c613 EC |
3833 | (addr_t)skb->data + skb_headlen(skb)) + |
3834 | qeth_get_elements_for_frags(skb); | |
4a71df50 | 3835 | |
2863c613 | 3836 | if ((elements + extra_elems) > QETH_MAX_BUFFER_ELEMENTS(card)) { |
14cc21b6 | 3837 | QETH_DBF_MESSAGE(2, "Invalid size of IP packet " |
4a71df50 | 3838 | "(Number=%d / Length=%d). Discarded.\n", |
2863c613 | 3839 | elements + extra_elems, skb->len); |
4a71df50 FB |
3840 | return 0; |
3841 | } | |
2863c613 | 3842 | return elements; |
4a71df50 FB |
3843 | } |
3844 | EXPORT_SYMBOL_GPL(qeth_get_elements_no); | |
3845 | ||
d4ae1f5e | 3846 | int qeth_hdr_chk_and_bounce(struct sk_buff *skb, struct qeth_hdr **hdr, int len) |
51aa165c FB |
3847 | { |
3848 | int hroom, inpage, rest; | |
3849 | ||
3850 | if (((unsigned long)skb->data & PAGE_MASK) != | |
3851 | (((unsigned long)skb->data + len - 1) & PAGE_MASK)) { | |
3852 | hroom = skb_headroom(skb); | |
3853 | inpage = PAGE_SIZE - ((unsigned long) skb->data % PAGE_SIZE); | |
3854 | rest = len - inpage; | |
3855 | if (rest > hroom) | |
3856 | return 1; | |
2863c613 | 3857 | memmove(skb->data - rest, skb->data, skb_headlen(skb)); |
51aa165c | 3858 | skb->data -= rest; |
d4ae1f5e SR |
3859 | skb->tail -= rest; |
3860 | *hdr = (struct qeth_hdr *)skb->data; | |
51aa165c FB |
3861 | QETH_DBF_MESSAGE(2, "skb bounce len: %d rest: %d\n", len, rest); |
3862 | } | |
3863 | return 0; | |
3864 | } | |
3865 | EXPORT_SYMBOL_GPL(qeth_hdr_chk_and_bounce); | |
3866 | ||
0d6f02d3 JW |
3867 | /** |
3868 | * qeth_push_hdr() - push a qeth_hdr onto an skb. | |
3869 | * @skb: skb that the qeth_hdr should be pushed onto. | |
3870 | * @hdr: double pointer to a qeth_hdr. When returning with >= 0, | |
3871 | * it contains a valid pointer to a qeth_hdr. | |
3872 | * @len: length of the hdr that needs to be pushed on. | |
3873 | * | |
3874 | * Returns the pushed length. If the header can't be pushed on | |
3875 | * (eg. because it would cross a page boundary), it is allocated from | |
3876 | * the cache instead and 0 is returned. | |
3877 | * Error to create the hdr is indicated by returning with < 0. | |
3878 | */ | |
3879 | int qeth_push_hdr(struct sk_buff *skb, struct qeth_hdr **hdr, unsigned int len) | |
3880 | { | |
3881 | if (skb_headroom(skb) >= len && | |
3882 | qeth_get_elements_for_range((addr_t)skb->data - len, | |
3883 | (addr_t)skb->data) == 1) { | |
3884 | *hdr = skb_push(skb, len); | |
3885 | return len; | |
3886 | } | |
3887 | /* fall back */ | |
3888 | *hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC); | |
3889 | if (!*hdr) | |
3890 | return -ENOMEM; | |
3891 | return 0; | |
3892 | } | |
3893 | EXPORT_SYMBOL_GPL(qeth_push_hdr); | |
3894 | ||
cef6ff22 JW |
3895 | static void __qeth_fill_buffer(struct sk_buff *skb, |
3896 | struct qeth_qdio_out_buffer *buf, | |
3897 | bool is_first_elem, unsigned int offset) | |
4a71df50 | 3898 | { |
384d2ef1 JW |
3899 | struct qdio_buffer *buffer = buf->buffer; |
3900 | int element = buf->next_element_to_fill; | |
cc309f83 JW |
3901 | int length = skb_headlen(skb) - offset; |
3902 | char *data = skb->data + offset; | |
384d2ef1 | 3903 | int length_here, cnt; |
4a71df50 | 3904 | |
cc309f83 | 3905 | /* map linear part into buffer element(s) */ |
4a71df50 FB |
3906 | while (length > 0) { |
3907 | /* length_here is the remaining amount of data in this page */ | |
3908 | length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE); | |
3909 | if (length < length_here) | |
3910 | length_here = length; | |
3911 | ||
3912 | buffer->element[element].addr = data; | |
3913 | buffer->element[element].length = length_here; | |
3914 | length -= length_here; | |
384d2ef1 JW |
3915 | if (is_first_elem) { |
3916 | is_first_elem = false; | |
5258830b JW |
3917 | if (length || skb_is_nonlinear(skb)) |
3918 | /* skb needs additional elements */ | |
3ec90878 | 3919 | buffer->element[element].eflags = |
5258830b | 3920 | SBAL_EFLAGS_FIRST_FRAG; |
4a71df50 | 3921 | else |
5258830b JW |
3922 | buffer->element[element].eflags = 0; |
3923 | } else { | |
3924 | buffer->element[element].eflags = | |
3925 | SBAL_EFLAGS_MIDDLE_FRAG; | |
4a71df50 FB |
3926 | } |
3927 | data += length_here; | |
3928 | element++; | |
4a71df50 | 3929 | } |
51aa165c | 3930 | |
cc309f83 | 3931 | /* map page frags into buffer element(s) */ |
51aa165c | 3932 | for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) { |
f8eb4930 JW |
3933 | skb_frag_t *frag = &skb_shinfo(skb)->frags[cnt]; |
3934 | ||
3935 | data = skb_frag_address(frag); | |
3936 | length = skb_frag_size(frag); | |
271648b4 FB |
3937 | while (length > 0) { |
3938 | length_here = PAGE_SIZE - | |
3939 | ((unsigned long) data % PAGE_SIZE); | |
3940 | if (length < length_here) | |
3941 | length_here = length; | |
3942 | ||
3943 | buffer->element[element].addr = data; | |
3944 | buffer->element[element].length = length_here; | |
3945 | buffer->element[element].eflags = | |
3946 | SBAL_EFLAGS_MIDDLE_FRAG; | |
3947 | length -= length_here; | |
3948 | data += length_here; | |
3949 | element++; | |
3950 | } | |
51aa165c FB |
3951 | } |
3952 | ||
3ec90878 JG |
3953 | if (buffer->element[element - 1].eflags) |
3954 | buffer->element[element - 1].eflags = SBAL_EFLAGS_LAST_FRAG; | |
384d2ef1 | 3955 | buf->next_element_to_fill = element; |
4a71df50 FB |
3956 | } |
3957 | ||
eaf3cc08 JW |
3958 | /** |
3959 | * qeth_fill_buffer() - map skb into an output buffer | |
3960 | * @queue: QDIO queue to submit the buffer on | |
3961 | * @buf: buffer to transport the skb | |
3962 | * @skb: skb to map into the buffer | |
3963 | * @hdr: qeth_hdr for this skb. Either at skb->data, or allocated | |
3964 | * from qeth_core_header_cache. | |
3965 | * @offset: when mapping the skb, start at skb->data + offset | |
3966 | * @hd_len: if > 0, build a dedicated header element of this size | |
3967 | */ | |
cef6ff22 JW |
3968 | static int qeth_fill_buffer(struct qeth_qdio_out_q *queue, |
3969 | struct qeth_qdio_out_buffer *buf, | |
3970 | struct sk_buff *skb, struct qeth_hdr *hdr, | |
13ddacb5 | 3971 | unsigned int offset, unsigned int hd_len) |
4a71df50 | 3972 | { |
eaf3cc08 | 3973 | struct qdio_buffer *buffer = buf->buffer; |
384d2ef1 | 3974 | bool is_first_elem = true; |
13ddacb5 | 3975 | int flush_cnt = 0; |
4a71df50 | 3976 | |
63354797 | 3977 | refcount_inc(&skb->users); |
4a71df50 FB |
3978 | skb_queue_tail(&buf->skb_list, skb); |
3979 | ||
eaf3cc08 JW |
3980 | /* build dedicated header element */ |
3981 | if (hd_len) { | |
683d718a | 3982 | int element = buf->next_element_to_fill; |
384d2ef1 JW |
3983 | is_first_elem = false; |
3984 | ||
683d718a | 3985 | buffer->element[element].addr = hdr; |
f1588177 | 3986 | buffer->element[element].length = hd_len; |
3ec90878 | 3987 | buffer->element[element].eflags = SBAL_EFLAGS_FIRST_FRAG; |
eaf3cc08 JW |
3988 | /* remember to free cache-allocated qeth_hdr: */ |
3989 | buf->is_header[element] = ((void *)hdr != skb->data); | |
683d718a FB |
3990 | buf->next_element_to_fill++; |
3991 | } | |
3992 | ||
384d2ef1 | 3993 | __qeth_fill_buffer(skb, buf, is_first_elem, offset); |
4a71df50 FB |
3994 | |
3995 | if (!queue->do_pack) { | |
847a50fd | 3996 | QETH_CARD_TEXT(queue->card, 6, "fillbfnp"); |
4a71df50 FB |
3997 | /* set state to PRIMED -> will be flushed */ |
3998 | atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); | |
3999 | flush_cnt = 1; | |
4000 | } else { | |
847a50fd | 4001 | QETH_CARD_TEXT(queue->card, 6, "fillbfpa"); |
4a71df50 FB |
4002 | if (queue->card->options.performance_stats) |
4003 | queue->card->perf_stats.skbs_sent_pack++; | |
4004 | if (buf->next_element_to_fill >= | |
4005 | QETH_MAX_BUFFER_ELEMENTS(queue->card)) { | |
4006 | /* | |
4007 | * packed buffer if full -> set state PRIMED | |
4008 | * -> will be flushed | |
4009 | */ | |
4010 | atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); | |
4011 | flush_cnt = 1; | |
4012 | } | |
4013 | } | |
4014 | return flush_cnt; | |
4015 | } | |
4016 | ||
7c2e9ba3 | 4017 | int qeth_do_send_packet_fast(struct qeth_qdio_out_q *queue, struct sk_buff *skb, |
cc309f83 | 4018 | struct qeth_hdr *hdr, unsigned int offset, |
13ddacb5 | 4019 | unsigned int hd_len) |
4a71df50 | 4020 | { |
7c2e9ba3 JW |
4021 | int index = queue->next_buf_to_fill; |
4022 | struct qeth_qdio_out_buffer *buffer = queue->bufs[index]; | |
4a71df50 | 4023 | |
4a71df50 FB |
4024 | /* |
4025 | * check if buffer is empty to make sure that we do not 'overtake' | |
4026 | * ourselves and try to fill a buffer that is already primed | |
4027 | */ | |
4028 | if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) | |
7c2e9ba3 JW |
4029 | return -EBUSY; |
4030 | queue->next_buf_to_fill = (index + 1) % QDIO_MAX_BUFFERS_PER_Q; | |
64ef8957 FB |
4031 | qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len); |
4032 | qeth_flush_buffers(queue, index, 1); | |
4a71df50 | 4033 | return 0; |
4a71df50 FB |
4034 | } |
4035 | EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast); | |
4036 | ||
4037 | int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, | |
13ddacb5 | 4038 | struct sk_buff *skb, struct qeth_hdr *hdr, |
9c3bfda9 JW |
4039 | unsigned int offset, unsigned int hd_len, |
4040 | int elements_needed) | |
4a71df50 FB |
4041 | { |
4042 | struct qeth_qdio_out_buffer *buffer; | |
4043 | int start_index; | |
4044 | int flush_count = 0; | |
4045 | int do_pack = 0; | |
4046 | int tmp; | |
4047 | int rc = 0; | |
4048 | ||
4a71df50 FB |
4049 | /* spin until we get the queue ... */ |
4050 | while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED, | |
4051 | QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED); | |
4052 | start_index = queue->next_buf_to_fill; | |
0da9581d | 4053 | buffer = queue->bufs[queue->next_buf_to_fill]; |
4a71df50 FB |
4054 | /* |
4055 | * check if buffer is empty to make sure that we do not 'overtake' | |
4056 | * ourselves and try to fill a buffer that is already primed | |
4057 | */ | |
4058 | if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) { | |
4059 | atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); | |
4060 | return -EBUSY; | |
4061 | } | |
4062 | /* check if we need to switch packing state of this queue */ | |
4063 | qeth_switch_to_packing_if_needed(queue); | |
4064 | if (queue->do_pack) { | |
4065 | do_pack = 1; | |
64ef8957 FB |
4066 | /* does packet fit in current buffer? */ |
4067 | if ((QETH_MAX_BUFFER_ELEMENTS(card) - | |
4068 | buffer->next_element_to_fill) < elements_needed) { | |
4069 | /* ... no -> set state PRIMED */ | |
4070 | atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); | |
4071 | flush_count++; | |
4072 | queue->next_buf_to_fill = | |
4073 | (queue->next_buf_to_fill + 1) % | |
4074 | QDIO_MAX_BUFFERS_PER_Q; | |
0da9581d | 4075 | buffer = queue->bufs[queue->next_buf_to_fill]; |
64ef8957 FB |
4076 | /* we did a step forward, so check buffer state |
4077 | * again */ | |
4078 | if (atomic_read(&buffer->state) != | |
4079 | QETH_QDIO_BUF_EMPTY) { | |
4080 | qeth_flush_buffers(queue, start_index, | |
779e6e1c | 4081 | flush_count); |
64ef8957 | 4082 | atomic_set(&queue->state, |
4a71df50 | 4083 | QETH_OUT_Q_UNLOCKED); |
3cdc8a25 JW |
4084 | rc = -EBUSY; |
4085 | goto out; | |
4a71df50 FB |
4086 | } |
4087 | } | |
4088 | } | |
9c3bfda9 | 4089 | tmp = qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len); |
4a71df50 FB |
4090 | queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) % |
4091 | QDIO_MAX_BUFFERS_PER_Q; | |
4092 | flush_count += tmp; | |
4a71df50 | 4093 | if (flush_count) |
779e6e1c | 4094 | qeth_flush_buffers(queue, start_index, flush_count); |
4a71df50 FB |
4095 | else if (!atomic_read(&queue->set_pci_flags_count)) |
4096 | atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH); | |
4097 | /* | |
4098 | * queue->state will go from LOCKED -> UNLOCKED or from | |
4099 | * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us | |
4100 | * (switch packing state or flush buffer to get another pci flag out). | |
4101 | * In that case we will enter this loop | |
4102 | */ | |
4103 | while (atomic_dec_return(&queue->state)) { | |
4a71df50 FB |
4104 | start_index = queue->next_buf_to_fill; |
4105 | /* check if we can go back to non-packing state */ | |
3cdc8a25 | 4106 | tmp = qeth_switch_to_nonpacking_if_needed(queue); |
4a71df50 FB |
4107 | /* |
4108 | * check if we need to flush a packing buffer to get a pci | |
4109 | * flag out on the queue | |
4110 | */ | |
3cdc8a25 JW |
4111 | if (!tmp && !atomic_read(&queue->set_pci_flags_count)) |
4112 | tmp = qeth_prep_flush_pack_buffer(queue); | |
4113 | if (tmp) { | |
4114 | qeth_flush_buffers(queue, start_index, tmp); | |
4115 | flush_count += tmp; | |
4116 | } | |
4a71df50 | 4117 | } |
3cdc8a25 | 4118 | out: |
4a71df50 FB |
4119 | /* at this point the queue is UNLOCKED again */ |
4120 | if (queue->card->options.performance_stats && do_pack) | |
4121 | queue->card->perf_stats.bufs_sent_pack += flush_count; | |
4122 | ||
4123 | return rc; | |
4124 | } | |
4125 | EXPORT_SYMBOL_GPL(qeth_do_send_packet); | |
4126 | ||
4127 | static int qeth_setadp_promisc_mode_cb(struct qeth_card *card, | |
4128 | struct qeth_reply *reply, unsigned long data) | |
4129 | { | |
4130 | struct qeth_ipa_cmd *cmd; | |
4131 | struct qeth_ipacmd_setadpparms *setparms; | |
4132 | ||
847a50fd | 4133 | QETH_CARD_TEXT(card, 4, "prmadpcb"); |
4a71df50 FB |
4134 | |
4135 | cmd = (struct qeth_ipa_cmd *) data; | |
4136 | setparms = &(cmd->data.setadapterparms); | |
4137 | ||
4138 | qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd); | |
4139 | if (cmd->hdr.return_code) { | |
8a593148 | 4140 | QETH_CARD_TEXT_(card, 4, "prmrc%x", cmd->hdr.return_code); |
4a71df50 FB |
4141 | setparms->data.mode = SET_PROMISC_MODE_OFF; |
4142 | } | |
4143 | card->info.promisc_mode = setparms->data.mode; | |
4144 | return 0; | |
4145 | } | |
4146 | ||
4147 | void qeth_setadp_promisc_mode(struct qeth_card *card) | |
4148 | { | |
4149 | enum qeth_ipa_promisc_modes mode; | |
4150 | struct net_device *dev = card->dev; | |
4151 | struct qeth_cmd_buffer *iob; | |
4152 | struct qeth_ipa_cmd *cmd; | |
4153 | ||
847a50fd | 4154 | QETH_CARD_TEXT(card, 4, "setprom"); |
4a71df50 FB |
4155 | |
4156 | if (((dev->flags & IFF_PROMISC) && | |
4157 | (card->info.promisc_mode == SET_PROMISC_MODE_ON)) || | |
4158 | (!(dev->flags & IFF_PROMISC) && | |
4159 | (card->info.promisc_mode == SET_PROMISC_MODE_OFF))) | |
4160 | return; | |
4161 | mode = SET_PROMISC_MODE_OFF; | |
4162 | if (dev->flags & IFF_PROMISC) | |
4163 | mode = SET_PROMISC_MODE_ON; | |
847a50fd | 4164 | QETH_CARD_TEXT_(card, 4, "mode:%x", mode); |
4a71df50 FB |
4165 | |
4166 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE, | |
ca5b20ac | 4167 | sizeof(struct qeth_ipacmd_setadpparms_hdr) + 8); |
1aec42bc TR |
4168 | if (!iob) |
4169 | return; | |
4a71df50 FB |
4170 | cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE); |
4171 | cmd->data.setadapterparms.data.mode = mode; | |
4172 | qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL); | |
4173 | } | |
4174 | EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode); | |
4175 | ||
4176 | int qeth_change_mtu(struct net_device *dev, int new_mtu) | |
4177 | { | |
4178 | struct qeth_card *card; | |
4179 | char dbf_text[15]; | |
4180 | ||
509e2562 | 4181 | card = dev->ml_priv; |
4a71df50 | 4182 | |
847a50fd | 4183 | QETH_CARD_TEXT(card, 4, "chgmtu"); |
4a71df50 | 4184 | sprintf(dbf_text, "%8x", new_mtu); |
847a50fd | 4185 | QETH_CARD_TEXT(card, 4, dbf_text); |
4a71df50 | 4186 | |
4845b93f | 4187 | if (!qeth_mtu_is_valid(card, new_mtu)) |
4a71df50 FB |
4188 | return -EINVAL; |
4189 | dev->mtu = new_mtu; | |
4190 | return 0; | |
4191 | } | |
4192 | EXPORT_SYMBOL_GPL(qeth_change_mtu); | |
4193 | ||
4194 | struct net_device_stats *qeth_get_stats(struct net_device *dev) | |
4195 | { | |
4196 | struct qeth_card *card; | |
4197 | ||
509e2562 | 4198 | card = dev->ml_priv; |
4a71df50 | 4199 | |
847a50fd | 4200 | QETH_CARD_TEXT(card, 5, "getstat"); |
4a71df50 FB |
4201 | |
4202 | return &card->stats; | |
4203 | } | |
4204 | EXPORT_SYMBOL_GPL(qeth_get_stats); | |
4205 | ||
4206 | static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card, | |
4207 | struct qeth_reply *reply, unsigned long data) | |
4208 | { | |
4209 | struct qeth_ipa_cmd *cmd; | |
4210 | ||
847a50fd | 4211 | QETH_CARD_TEXT(card, 4, "chgmaccb"); |
4a71df50 FB |
4212 | |
4213 | cmd = (struct qeth_ipa_cmd *) data; | |
4214 | if (!card->options.layer2 || | |
4215 | !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) { | |
4216 | memcpy(card->dev->dev_addr, | |
4217 | &cmd->data.setadapterparms.data.change_addr.addr, | |
4218 | OSA_ADDR_LEN); | |
4219 | card->info.mac_bits |= QETH_LAYER2_MAC_READ; | |
4220 | } | |
4221 | qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd); | |
4222 | return 0; | |
4223 | } | |
4224 | ||
4225 | int qeth_setadpparms_change_macaddr(struct qeth_card *card) | |
4226 | { | |
4227 | int rc; | |
4228 | struct qeth_cmd_buffer *iob; | |
4229 | struct qeth_ipa_cmd *cmd; | |
4230 | ||
847a50fd | 4231 | QETH_CARD_TEXT(card, 4, "chgmac"); |
4a71df50 FB |
4232 | |
4233 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS, | |
ca5b20ac SR |
4234 | sizeof(struct qeth_ipacmd_setadpparms_hdr) + |
4235 | sizeof(struct qeth_change_addr)); | |
1aec42bc TR |
4236 | if (!iob) |
4237 | return -ENOMEM; | |
4a71df50 FB |
4238 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
4239 | cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC; | |
4240 | cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN; | |
4241 | memcpy(&cmd->data.setadapterparms.data.change_addr.addr, | |
4242 | card->dev->dev_addr, OSA_ADDR_LEN); | |
4243 | rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb, | |
4244 | NULL); | |
4245 | return rc; | |
4246 | } | |
4247 | EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr); | |
4248 | ||
d64ecc22 EL |
4249 | static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card, |
4250 | struct qeth_reply *reply, unsigned long data) | |
4251 | { | |
4252 | struct qeth_ipa_cmd *cmd; | |
4253 | struct qeth_set_access_ctrl *access_ctrl_req; | |
0f54761d | 4254 | int fallback = *(int *)reply->param; |
d64ecc22 | 4255 | |
847a50fd | 4256 | QETH_CARD_TEXT(card, 4, "setaccb"); |
d64ecc22 EL |
4257 | |
4258 | cmd = (struct qeth_ipa_cmd *) data; | |
4259 | access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl; | |
4260 | QETH_DBF_TEXT_(SETUP, 2, "setaccb"); | |
4261 | QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name); | |
4262 | QETH_DBF_TEXT_(SETUP, 2, "rc=%d", | |
4263 | cmd->data.setadapterparms.hdr.return_code); | |
0f54761d SR |
4264 | if (cmd->data.setadapterparms.hdr.return_code != |
4265 | SET_ACCESS_CTRL_RC_SUCCESS) | |
4266 | QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%s,%d)==%d\n", | |
4267 | card->gdev->dev.kobj.name, | |
4268 | access_ctrl_req->subcmd_code, | |
4269 | cmd->data.setadapterparms.hdr.return_code); | |
d64ecc22 EL |
4270 | switch (cmd->data.setadapterparms.hdr.return_code) { |
4271 | case SET_ACCESS_CTRL_RC_SUCCESS: | |
d64ecc22 EL |
4272 | if (card->options.isolation == ISOLATION_MODE_NONE) { |
4273 | dev_info(&card->gdev->dev, | |
4274 | "QDIO data connection isolation is deactivated\n"); | |
4275 | } else { | |
4276 | dev_info(&card->gdev->dev, | |
4277 | "QDIO data connection isolation is activated\n"); | |
4278 | } | |
d64ecc22 | 4279 | break; |
0f54761d SR |
4280 | case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED: |
4281 | QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already " | |
4282 | "deactivated\n", dev_name(&card->gdev->dev)); | |
4283 | if (fallback) | |
4284 | card->options.isolation = card->options.prev_isolation; | |
4285 | break; | |
4286 | case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED: | |
4287 | QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already" | |
4288 | " activated\n", dev_name(&card->gdev->dev)); | |
4289 | if (fallback) | |
4290 | card->options.isolation = card->options.prev_isolation; | |
4291 | break; | |
d64ecc22 | 4292 | case SET_ACCESS_CTRL_RC_NOT_SUPPORTED: |
d64ecc22 EL |
4293 | dev_err(&card->gdev->dev, "Adapter does not " |
4294 | "support QDIO data connection isolation\n"); | |
d64ecc22 | 4295 | break; |
d64ecc22 | 4296 | case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER: |
d64ecc22 EL |
4297 | dev_err(&card->gdev->dev, |
4298 | "Adapter is dedicated. " | |
4299 | "QDIO data connection isolation not supported\n"); | |
0f54761d SR |
4300 | if (fallback) |
4301 | card->options.isolation = card->options.prev_isolation; | |
d64ecc22 | 4302 | break; |
d64ecc22 | 4303 | case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF: |
d64ecc22 EL |
4304 | dev_err(&card->gdev->dev, |
4305 | "TSO does not permit QDIO data connection isolation\n"); | |
0f54761d SR |
4306 | if (fallback) |
4307 | card->options.isolation = card->options.prev_isolation; | |
4308 | break; | |
4309 | case SET_ACCESS_CTRL_RC_REFLREL_UNSUPPORTED: | |
4310 | dev_err(&card->gdev->dev, "The adjacent switch port does not " | |
4311 | "support reflective relay mode\n"); | |
4312 | if (fallback) | |
4313 | card->options.isolation = card->options.prev_isolation; | |
4314 | break; | |
4315 | case SET_ACCESS_CTRL_RC_REFLREL_FAILED: | |
4316 | dev_err(&card->gdev->dev, "The reflective relay mode cannot be " | |
4317 | "enabled at the adjacent switch port"); | |
4318 | if (fallback) | |
4319 | card->options.isolation = card->options.prev_isolation; | |
4320 | break; | |
4321 | case SET_ACCESS_CTRL_RC_REFLREL_DEACT_FAILED: | |
4322 | dev_warn(&card->gdev->dev, "Turning off reflective relay mode " | |
4323 | "at the adjacent switch failed\n"); | |
d64ecc22 | 4324 | break; |
d64ecc22 | 4325 | default: |
d64ecc22 | 4326 | /* this should never happen */ |
0f54761d SR |
4327 | if (fallback) |
4328 | card->options.isolation = card->options.prev_isolation; | |
d64ecc22 EL |
4329 | break; |
4330 | } | |
d64ecc22 | 4331 | qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd); |
bbb822a8 | 4332 | return 0; |
d64ecc22 EL |
4333 | } |
4334 | ||
4335 | static int qeth_setadpparms_set_access_ctrl(struct qeth_card *card, | |
0f54761d | 4336 | enum qeth_ipa_isolation_modes isolation, int fallback) |
d64ecc22 EL |
4337 | { |
4338 | int rc; | |
4339 | struct qeth_cmd_buffer *iob; | |
4340 | struct qeth_ipa_cmd *cmd; | |
4341 | struct qeth_set_access_ctrl *access_ctrl_req; | |
4342 | ||
847a50fd | 4343 | QETH_CARD_TEXT(card, 4, "setacctl"); |
d64ecc22 EL |
4344 | |
4345 | QETH_DBF_TEXT_(SETUP, 2, "setacctl"); | |
4346 | QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name); | |
4347 | ||
4348 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_ACCESS_CONTROL, | |
4349 | sizeof(struct qeth_ipacmd_setadpparms_hdr) + | |
4350 | sizeof(struct qeth_set_access_ctrl)); | |
1aec42bc TR |
4351 | if (!iob) |
4352 | return -ENOMEM; | |
d64ecc22 EL |
4353 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
4354 | access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl; | |
4355 | access_ctrl_req->subcmd_code = isolation; | |
4356 | ||
4357 | rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_set_access_ctrl_cb, | |
0f54761d | 4358 | &fallback); |
d64ecc22 EL |
4359 | QETH_DBF_TEXT_(SETUP, 2, "rc=%d", rc); |
4360 | return rc; | |
4361 | } | |
4362 | ||
0f54761d | 4363 | int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback) |
d64ecc22 EL |
4364 | { |
4365 | int rc = 0; | |
4366 | ||
847a50fd | 4367 | QETH_CARD_TEXT(card, 4, "setactlo"); |
d64ecc22 | 4368 | |
5113fec0 UB |
4369 | if ((card->info.type == QETH_CARD_TYPE_OSD || |
4370 | card->info.type == QETH_CARD_TYPE_OSX) && | |
4371 | qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) { | |
d64ecc22 | 4372 | rc = qeth_setadpparms_set_access_ctrl(card, |
0f54761d | 4373 | card->options.isolation, fallback); |
d64ecc22 EL |
4374 | if (rc) { |
4375 | QETH_DBF_MESSAGE(3, | |
5113fec0 | 4376 | "IPA(SET_ACCESS_CTRL,%s,%d) sent failed\n", |
d64ecc22 EL |
4377 | card->gdev->dev.kobj.name, |
4378 | rc); | |
0f54761d | 4379 | rc = -EOPNOTSUPP; |
d64ecc22 EL |
4380 | } |
4381 | } else if (card->options.isolation != ISOLATION_MODE_NONE) { | |
4382 | card->options.isolation = ISOLATION_MODE_NONE; | |
4383 | ||
4384 | dev_err(&card->gdev->dev, "Adapter does not " | |
4385 | "support QDIO data connection isolation\n"); | |
4386 | rc = -EOPNOTSUPP; | |
4387 | } | |
4388 | return rc; | |
4389 | } | |
4390 | EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online); | |
4391 | ||
4a71df50 FB |
4392 | void qeth_tx_timeout(struct net_device *dev) |
4393 | { | |
4394 | struct qeth_card *card; | |
4395 | ||
509e2562 | 4396 | card = dev->ml_priv; |
847a50fd | 4397 | QETH_CARD_TEXT(card, 4, "txtimeo"); |
4a71df50 FB |
4398 | card->stats.tx_errors++; |
4399 | qeth_schedule_recovery(card); | |
4400 | } | |
4401 | EXPORT_SYMBOL_GPL(qeth_tx_timeout); | |
4402 | ||
942d6984 | 4403 | static int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum) |
4a71df50 | 4404 | { |
509e2562 | 4405 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
4406 | int rc = 0; |
4407 | ||
4408 | switch (regnum) { | |
4409 | case MII_BMCR: /* Basic mode control register */ | |
4410 | rc = BMCR_FULLDPLX; | |
4411 | if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) && | |
4412 | (card->info.link_type != QETH_LINK_TYPE_OSN) && | |
4413 | (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH)) | |
4414 | rc |= BMCR_SPEED100; | |
4415 | break; | |
4416 | case MII_BMSR: /* Basic mode status register */ | |
4417 | rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS | | |
4418 | BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL | | |
4419 | BMSR_100BASE4; | |
4420 | break; | |
4421 | case MII_PHYSID1: /* PHYS ID 1 */ | |
4422 | rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) | | |
4423 | dev->dev_addr[2]; | |
4424 | rc = (rc >> 5) & 0xFFFF; | |
4425 | break; | |
4426 | case MII_PHYSID2: /* PHYS ID 2 */ | |
4427 | rc = (dev->dev_addr[2] << 10) & 0xFFFF; | |
4428 | break; | |
4429 | case MII_ADVERTISE: /* Advertisement control reg */ | |
4430 | rc = ADVERTISE_ALL; | |
4431 | break; | |
4432 | case MII_LPA: /* Link partner ability reg */ | |
4433 | rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL | | |
4434 | LPA_100BASE4 | LPA_LPACK; | |
4435 | break; | |
4436 | case MII_EXPANSION: /* Expansion register */ | |
4437 | break; | |
4438 | case MII_DCOUNTER: /* disconnect counter */ | |
4439 | break; | |
4440 | case MII_FCSCOUNTER: /* false carrier counter */ | |
4441 | break; | |
4442 | case MII_NWAYTEST: /* N-way auto-neg test register */ | |
4443 | break; | |
4444 | case MII_RERRCOUNTER: /* rx error counter */ | |
4445 | rc = card->stats.rx_errors; | |
4446 | break; | |
4447 | case MII_SREVISION: /* silicon revision */ | |
4448 | break; | |
4449 | case MII_RESV1: /* reserved 1 */ | |
4450 | break; | |
4451 | case MII_LBRERROR: /* loopback, rx, bypass error */ | |
4452 | break; | |
4453 | case MII_PHYADDR: /* physical address */ | |
4454 | break; | |
4455 | case MII_RESV2: /* reserved 2 */ | |
4456 | break; | |
4457 | case MII_TPISTATUS: /* TPI status for 10mbps */ | |
4458 | break; | |
4459 | case MII_NCONFIG: /* network interface config */ | |
4460 | break; | |
4461 | default: | |
4462 | break; | |
4463 | } | |
4464 | return rc; | |
4465 | } | |
4a71df50 FB |
4466 | |
4467 | static int qeth_send_ipa_snmp_cmd(struct qeth_card *card, | |
4468 | struct qeth_cmd_buffer *iob, int len, | |
4469 | int (*reply_cb)(struct qeth_card *, struct qeth_reply *, | |
4470 | unsigned long), | |
4471 | void *reply_param) | |
4472 | { | |
4473 | u16 s1, s2; | |
4474 | ||
847a50fd | 4475 | QETH_CARD_TEXT(card, 4, "sendsnmp"); |
4a71df50 FB |
4476 | |
4477 | memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); | |
4478 | memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), | |
4479 | &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); | |
4480 | /* adjust PDU length fields in IPA_PDU_HEADER */ | |
4481 | s1 = (u32) IPA_PDU_HEADER_SIZE + len; | |
4482 | s2 = (u32) len; | |
4483 | memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); | |
4484 | memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); | |
4485 | memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); | |
4486 | memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); | |
4487 | return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob, | |
4488 | reply_cb, reply_param); | |
4489 | } | |
4490 | ||
4491 | static int qeth_snmp_command_cb(struct qeth_card *card, | |
4492 | struct qeth_reply *reply, unsigned long sdata) | |
4493 | { | |
4494 | struct qeth_ipa_cmd *cmd; | |
4495 | struct qeth_arp_query_info *qinfo; | |
4496 | struct qeth_snmp_cmd *snmp; | |
4497 | unsigned char *data; | |
4498 | __u16 data_len; | |
4499 | ||
847a50fd | 4500 | QETH_CARD_TEXT(card, 3, "snpcmdcb"); |
4a71df50 FB |
4501 | |
4502 | cmd = (struct qeth_ipa_cmd *) sdata; | |
4503 | data = (unsigned char *)((char *)cmd - reply->offset); | |
4504 | qinfo = (struct qeth_arp_query_info *) reply->param; | |
4505 | snmp = &cmd->data.setadapterparms.data.snmp; | |
4506 | ||
4507 | if (cmd->hdr.return_code) { | |
8a593148 | 4508 | QETH_CARD_TEXT_(card, 4, "scer1%x", cmd->hdr.return_code); |
4a71df50 FB |
4509 | return 0; |
4510 | } | |
4511 | if (cmd->data.setadapterparms.hdr.return_code) { | |
4512 | cmd->hdr.return_code = | |
4513 | cmd->data.setadapterparms.hdr.return_code; | |
8a593148 | 4514 | QETH_CARD_TEXT_(card, 4, "scer2%x", cmd->hdr.return_code); |
4a71df50 FB |
4515 | return 0; |
4516 | } | |
4517 | data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data)); | |
4518 | if (cmd->data.setadapterparms.hdr.seq_no == 1) | |
4519 | data_len -= (__u16)((char *)&snmp->data - (char *)cmd); | |
4520 | else | |
4521 | data_len -= (__u16)((char *)&snmp->request - (char *)cmd); | |
4522 | ||
4523 | /* check if there is enough room in userspace */ | |
4524 | if ((qinfo->udata_len - qinfo->udata_offset) < data_len) { | |
847a50fd | 4525 | QETH_CARD_TEXT_(card, 4, "scer3%i", -ENOMEM); |
e0a8114c | 4526 | cmd->hdr.return_code = IPA_RC_ENOMEM; |
4a71df50 FB |
4527 | return 0; |
4528 | } | |
847a50fd | 4529 | QETH_CARD_TEXT_(card, 4, "snore%i", |
4a71df50 | 4530 | cmd->data.setadapterparms.hdr.used_total); |
847a50fd | 4531 | QETH_CARD_TEXT_(card, 4, "sseqn%i", |
4a71df50 FB |
4532 | cmd->data.setadapterparms.hdr.seq_no); |
4533 | /*copy entries to user buffer*/ | |
4534 | if (cmd->data.setadapterparms.hdr.seq_no == 1) { | |
4535 | memcpy(qinfo->udata + qinfo->udata_offset, | |
4536 | (char *)snmp, | |
4537 | data_len + offsetof(struct qeth_snmp_cmd, data)); | |
4538 | qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data); | |
4539 | } else { | |
4540 | memcpy(qinfo->udata + qinfo->udata_offset, | |
4541 | (char *)&snmp->request, data_len); | |
4542 | } | |
4543 | qinfo->udata_offset += data_len; | |
4544 | /* check if all replies received ... */ | |
847a50fd | 4545 | QETH_CARD_TEXT_(card, 4, "srtot%i", |
4a71df50 | 4546 | cmd->data.setadapterparms.hdr.used_total); |
847a50fd | 4547 | QETH_CARD_TEXT_(card, 4, "srseq%i", |
4a71df50 FB |
4548 | cmd->data.setadapterparms.hdr.seq_no); |
4549 | if (cmd->data.setadapterparms.hdr.seq_no < | |
4550 | cmd->data.setadapterparms.hdr.used_total) | |
4551 | return 1; | |
4552 | return 0; | |
4553 | } | |
4554 | ||
942d6984 | 4555 | static int qeth_snmp_command(struct qeth_card *card, char __user *udata) |
4a71df50 FB |
4556 | { |
4557 | struct qeth_cmd_buffer *iob; | |
4558 | struct qeth_ipa_cmd *cmd; | |
4559 | struct qeth_snmp_ureq *ureq; | |
6fb392b1 | 4560 | unsigned int req_len; |
4a71df50 FB |
4561 | struct qeth_arp_query_info qinfo = {0, }; |
4562 | int rc = 0; | |
4563 | ||
847a50fd | 4564 | QETH_CARD_TEXT(card, 3, "snmpcmd"); |
4a71df50 FB |
4565 | |
4566 | if (card->info.guestlan) | |
4567 | return -EOPNOTSUPP; | |
4568 | ||
4569 | if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) && | |
4570 | (!card->options.layer2)) { | |
4a71df50 FB |
4571 | return -EOPNOTSUPP; |
4572 | } | |
4573 | /* skip 4 bytes (data_len struct member) to get req_len */ | |
4574 | if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int))) | |
4575 | return -EFAULT; | |
6fb392b1 UB |
4576 | if (req_len > (QETH_BUFSIZE - IPA_PDU_HEADER_SIZE - |
4577 | sizeof(struct qeth_ipacmd_hdr) - | |
4578 | sizeof(struct qeth_ipacmd_setadpparms_hdr))) | |
4579 | return -EINVAL; | |
4986f3f0 JL |
4580 | ureq = memdup_user(udata, req_len + sizeof(struct qeth_snmp_ureq_hdr)); |
4581 | if (IS_ERR(ureq)) { | |
847a50fd | 4582 | QETH_CARD_TEXT(card, 2, "snmpnome"); |
4986f3f0 | 4583 | return PTR_ERR(ureq); |
4a71df50 FB |
4584 | } |
4585 | qinfo.udata_len = ureq->hdr.data_len; | |
4586 | qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL); | |
4587 | if (!qinfo.udata) { | |
4588 | kfree(ureq); | |
4589 | return -ENOMEM; | |
4590 | } | |
4591 | qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr); | |
4592 | ||
4593 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL, | |
4594 | QETH_SNMP_SETADP_CMDLENGTH + req_len); | |
1aec42bc TR |
4595 | if (!iob) { |
4596 | rc = -ENOMEM; | |
4597 | goto out; | |
4598 | } | |
4a71df50 FB |
4599 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
4600 | memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len); | |
4601 | rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len, | |
4602 | qeth_snmp_command_cb, (void *)&qinfo); | |
4603 | if (rc) | |
14cc21b6 | 4604 | QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n", |
4a71df50 FB |
4605 | QETH_CARD_IFNAME(card), rc); |
4606 | else { | |
4607 | if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) | |
4608 | rc = -EFAULT; | |
4609 | } | |
1aec42bc | 4610 | out: |
4a71df50 FB |
4611 | kfree(ureq); |
4612 | kfree(qinfo.udata); | |
4613 | return rc; | |
4614 | } | |
4a71df50 | 4615 | |
c3ab96f3 FB |
4616 | static int qeth_setadpparms_query_oat_cb(struct qeth_card *card, |
4617 | struct qeth_reply *reply, unsigned long data) | |
4618 | { | |
4619 | struct qeth_ipa_cmd *cmd; | |
4620 | struct qeth_qoat_priv *priv; | |
4621 | char *resdata; | |
4622 | int resdatalen; | |
4623 | ||
4624 | QETH_CARD_TEXT(card, 3, "qoatcb"); | |
4625 | ||
4626 | cmd = (struct qeth_ipa_cmd *)data; | |
4627 | priv = (struct qeth_qoat_priv *)reply->param; | |
4628 | resdatalen = cmd->data.setadapterparms.hdr.cmdlength; | |
4629 | resdata = (char *)data + 28; | |
4630 | ||
4631 | if (resdatalen > (priv->buffer_len - priv->response_len)) { | |
4632 | cmd->hdr.return_code = IPA_RC_FFFF; | |
4633 | return 0; | |
4634 | } | |
4635 | ||
4636 | memcpy((priv->buffer + priv->response_len), resdata, | |
4637 | resdatalen); | |
4638 | priv->response_len += resdatalen; | |
4639 | ||
4640 | if (cmd->data.setadapterparms.hdr.seq_no < | |
4641 | cmd->data.setadapterparms.hdr.used_total) | |
4642 | return 1; | |
4643 | return 0; | |
4644 | } | |
4645 | ||
942d6984 | 4646 | static int qeth_query_oat_command(struct qeth_card *card, char __user *udata) |
c3ab96f3 FB |
4647 | { |
4648 | int rc = 0; | |
4649 | struct qeth_cmd_buffer *iob; | |
4650 | struct qeth_ipa_cmd *cmd; | |
4651 | struct qeth_query_oat *oat_req; | |
4652 | struct qeth_query_oat_data oat_data; | |
4653 | struct qeth_qoat_priv priv; | |
4654 | void __user *tmp; | |
4655 | ||
4656 | QETH_CARD_TEXT(card, 3, "qoatcmd"); | |
4657 | ||
4658 | if (!qeth_adp_supported(card, IPA_SETADP_QUERY_OAT)) { | |
4659 | rc = -EOPNOTSUPP; | |
4660 | goto out; | |
4661 | } | |
4662 | ||
4663 | if (copy_from_user(&oat_data, udata, | |
4664 | sizeof(struct qeth_query_oat_data))) { | |
4665 | rc = -EFAULT; | |
4666 | goto out; | |
4667 | } | |
4668 | ||
4669 | priv.buffer_len = oat_data.buffer_len; | |
4670 | priv.response_len = 0; | |
4671 | priv.buffer = kzalloc(oat_data.buffer_len, GFP_KERNEL); | |
4672 | if (!priv.buffer) { | |
4673 | rc = -ENOMEM; | |
4674 | goto out; | |
4675 | } | |
4676 | ||
4677 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_OAT, | |
4678 | sizeof(struct qeth_ipacmd_setadpparms_hdr) + | |
4679 | sizeof(struct qeth_query_oat)); | |
1aec42bc TR |
4680 | if (!iob) { |
4681 | rc = -ENOMEM; | |
4682 | goto out_free; | |
4683 | } | |
c3ab96f3 FB |
4684 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
4685 | oat_req = &cmd->data.setadapterparms.data.query_oat; | |
4686 | oat_req->subcmd_code = oat_data.command; | |
4687 | ||
4688 | rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_query_oat_cb, | |
4689 | &priv); | |
4690 | if (!rc) { | |
4691 | if (is_compat_task()) | |
4692 | tmp = compat_ptr(oat_data.ptr); | |
4693 | else | |
4694 | tmp = (void __user *)(unsigned long)oat_data.ptr; | |
4695 | ||
4696 | if (copy_to_user(tmp, priv.buffer, | |
4697 | priv.response_len)) { | |
4698 | rc = -EFAULT; | |
4699 | goto out_free; | |
4700 | } | |
4701 | ||
4702 | oat_data.response_len = priv.response_len; | |
4703 | ||
4704 | if (copy_to_user(udata, &oat_data, | |
4705 | sizeof(struct qeth_query_oat_data))) | |
4706 | rc = -EFAULT; | |
4707 | } else | |
4708 | if (rc == IPA_RC_FFFF) | |
4709 | rc = -EFAULT; | |
4710 | ||
4711 | out_free: | |
4712 | kfree(priv.buffer); | |
4713 | out: | |
4714 | return rc; | |
4715 | } | |
c3ab96f3 | 4716 | |
e71e4072 HC |
4717 | static int qeth_query_card_info_cb(struct qeth_card *card, |
4718 | struct qeth_reply *reply, unsigned long data) | |
02d5cb5b EC |
4719 | { |
4720 | struct qeth_ipa_cmd *cmd; | |
4721 | struct qeth_query_card_info *card_info; | |
4722 | struct carrier_info *carrier_info; | |
4723 | ||
4724 | QETH_CARD_TEXT(card, 2, "qcrdincb"); | |
4725 | carrier_info = (struct carrier_info *)reply->param; | |
4726 | cmd = (struct qeth_ipa_cmd *)data; | |
4727 | card_info = &cmd->data.setadapterparms.data.card_info; | |
4728 | if (cmd->data.setadapterparms.hdr.return_code == 0) { | |
4729 | carrier_info->card_type = card_info->card_type; | |
4730 | carrier_info->port_mode = card_info->port_mode; | |
4731 | carrier_info->port_speed = card_info->port_speed; | |
4732 | } | |
4733 | ||
4734 | qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd); | |
4735 | return 0; | |
4736 | } | |
4737 | ||
bca51650 | 4738 | static int qeth_query_card_info(struct qeth_card *card, |
02d5cb5b EC |
4739 | struct carrier_info *carrier_info) |
4740 | { | |
4741 | struct qeth_cmd_buffer *iob; | |
4742 | ||
4743 | QETH_CARD_TEXT(card, 2, "qcrdinfo"); | |
4744 | if (!qeth_adp_supported(card, IPA_SETADP_QUERY_CARD_INFO)) | |
4745 | return -EOPNOTSUPP; | |
4746 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_CARD_INFO, | |
4747 | sizeof(struct qeth_ipacmd_setadpparms_hdr)); | |
1aec42bc TR |
4748 | if (!iob) |
4749 | return -ENOMEM; | |
02d5cb5b EC |
4750 | return qeth_send_ipa_cmd(card, iob, qeth_query_card_info_cb, |
4751 | (void *)carrier_info); | |
4752 | } | |
02d5cb5b | 4753 | |
ec61bd2f JW |
4754 | /** |
4755 | * qeth_vm_request_mac() - Request a hypervisor-managed MAC address | |
4756 | * @card: pointer to a qeth_card | |
4757 | * | |
4758 | * Returns | |
4759 | * 0, if a MAC address has been set for the card's netdevice | |
4760 | * a return code, for various error conditions | |
4761 | */ | |
4762 | int qeth_vm_request_mac(struct qeth_card *card) | |
4763 | { | |
4764 | struct diag26c_mac_resp *response; | |
4765 | struct diag26c_mac_req *request; | |
4766 | struct ccw_dev_id id; | |
4767 | int rc; | |
4768 | ||
4769 | QETH_DBF_TEXT(SETUP, 2, "vmreqmac"); | |
4770 | ||
4771 | if (!card->dev) | |
4772 | return -ENODEV; | |
4773 | ||
4774 | request = kzalloc(sizeof(*request), GFP_KERNEL | GFP_DMA); | |
4775 | response = kzalloc(sizeof(*response), GFP_KERNEL | GFP_DMA); | |
4776 | if (!request || !response) { | |
4777 | rc = -ENOMEM; | |
4778 | goto out; | |
4779 | } | |
4780 | ||
4781 | ccw_device_get_id(CARD_DDEV(card), &id); | |
4782 | request->resp_buf_len = sizeof(*response); | |
4783 | request->resp_version = DIAG26C_VERSION2; | |
4784 | request->op_code = DIAG26C_GET_MAC; | |
4785 | request->devno = id.devno; | |
4786 | ||
4787 | rc = diag26c(request, response, DIAG26C_MAC_SERVICES); | |
4788 | if (rc) | |
4789 | goto out; | |
4790 | ||
4791 | if (request->resp_buf_len < sizeof(*response) || | |
4792 | response->version != request->resp_version) { | |
4793 | rc = -EIO; | |
4794 | QETH_DBF_TEXT(SETUP, 2, "badresp"); | |
4795 | QETH_DBF_HEX(SETUP, 2, &request->resp_buf_len, | |
4796 | sizeof(request->resp_buf_len)); | |
4797 | } else if (!is_valid_ether_addr(response->mac)) { | |
4798 | rc = -EINVAL; | |
4799 | QETH_DBF_TEXT(SETUP, 2, "badmac"); | |
4800 | QETH_DBF_HEX(SETUP, 2, response->mac, ETH_ALEN); | |
4801 | } else { | |
4802 | ether_addr_copy(card->dev->dev_addr, response->mac); | |
4803 | } | |
4804 | ||
4805 | out: | |
4806 | kfree(response); | |
4807 | kfree(request); | |
4808 | return rc; | |
4809 | } | |
4810 | EXPORT_SYMBOL_GPL(qeth_vm_request_mac); | |
4811 | ||
cef6ff22 | 4812 | static int qeth_get_qdio_q_format(struct qeth_card *card) |
4a71df50 | 4813 | { |
aa59004b JW |
4814 | if (card->info.type == QETH_CARD_TYPE_IQD) |
4815 | return QDIO_IQDIO_QFMT; | |
4816 | else | |
4817 | return QDIO_QETH_QFMT; | |
4a71df50 FB |
4818 | } |
4819 | ||
d0ff1f52 UB |
4820 | static void qeth_determine_capabilities(struct qeth_card *card) |
4821 | { | |
4822 | int rc; | |
4823 | int length; | |
4824 | char *prcd; | |
4825 | struct ccw_device *ddev; | |
4826 | int ddev_offline = 0; | |
4827 | ||
4828 | QETH_DBF_TEXT(SETUP, 2, "detcapab"); | |
4829 | ddev = CARD_DDEV(card); | |
4830 | if (!ddev->online) { | |
4831 | ddev_offline = 1; | |
4832 | rc = ccw_device_set_online(ddev); | |
4833 | if (rc) { | |
4834 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); | |
4835 | goto out; | |
4836 | } | |
4837 | } | |
4838 | ||
4839 | rc = qeth_read_conf_data(card, (void **) &prcd, &length); | |
4840 | if (rc) { | |
4841 | QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n", | |
4842 | dev_name(&card->gdev->dev), rc); | |
4843 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); | |
4844 | goto out_offline; | |
4845 | } | |
4846 | qeth_configure_unitaddr(card, prcd); | |
7e665afb UB |
4847 | if (ddev_offline) |
4848 | qeth_configure_blkt_default(card, prcd); | |
d0ff1f52 UB |
4849 | kfree(prcd); |
4850 | ||
4851 | rc = qdio_get_ssqd_desc(ddev, &card->ssqd); | |
4852 | if (rc) | |
4853 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); | |
4854 | ||
0da9581d | 4855 | QETH_DBF_TEXT_(SETUP, 2, "qfmt%d", card->ssqd.qfmt); |
bbeb2414 JW |
4856 | QETH_DBF_TEXT_(SETUP, 2, "ac1:%02x", card->ssqd.qdioac1); |
4857 | QETH_DBF_TEXT_(SETUP, 2, "ac2:%04x", card->ssqd.qdioac2); | |
4858 | QETH_DBF_TEXT_(SETUP, 2, "ac3:%04x", card->ssqd.qdioac3); | |
0da9581d EL |
4859 | QETH_DBF_TEXT_(SETUP, 2, "icnt%d", card->ssqd.icnt); |
4860 | if (!((card->ssqd.qfmt != QDIO_IQDIO_QFMT) || | |
4861 | ((card->ssqd.qdioac1 & CHSC_AC1_INITIATE_INPUTQ) == 0) || | |
4862 | ((card->ssqd.qdioac3 & CHSC_AC3_FORMAT2_CQ_AVAILABLE) == 0))) { | |
4863 | dev_info(&card->gdev->dev, | |
4864 | "Completion Queueing supported\n"); | |
4865 | } else { | |
4866 | card->options.cq = QETH_CQ_NOTAVAILABLE; | |
4867 | } | |
4868 | ||
4869 | ||
d0ff1f52 UB |
4870 | out_offline: |
4871 | if (ddev_offline == 1) | |
4872 | ccw_device_set_offline(ddev); | |
4873 | out: | |
4874 | return; | |
4875 | } | |
4876 | ||
cef6ff22 JW |
4877 | static void qeth_qdio_establish_cq(struct qeth_card *card, |
4878 | struct qdio_buffer **in_sbal_ptrs, | |
4879 | void (**queue_start_poll) | |
4880 | (struct ccw_device *, int, | |
4881 | unsigned long)) | |
4882 | { | |
0da9581d EL |
4883 | int i; |
4884 | ||
4885 | if (card->options.cq == QETH_CQ_ENABLED) { | |
4886 | int offset = QDIO_MAX_BUFFERS_PER_Q * | |
4887 | (card->qdio.no_in_queues - 1); | |
0da9581d EL |
4888 | for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) { |
4889 | in_sbal_ptrs[offset + i] = (struct qdio_buffer *) | |
4890 | virt_to_phys(card->qdio.c_q->bufs[i].buffer); | |
4891 | } | |
4892 | ||
4893 | queue_start_poll[card->qdio.no_in_queues - 1] = NULL; | |
4894 | } | |
4895 | } | |
4896 | ||
4a71df50 FB |
4897 | static int qeth_qdio_establish(struct qeth_card *card) |
4898 | { | |
4899 | struct qdio_initialize init_data; | |
4900 | char *qib_param_field; | |
4901 | struct qdio_buffer **in_sbal_ptrs; | |
104ea556 | 4902 | void (**queue_start_poll) (struct ccw_device *, int, unsigned long); |
4a71df50 FB |
4903 | struct qdio_buffer **out_sbal_ptrs; |
4904 | int i, j, k; | |
4905 | int rc = 0; | |
4906 | ||
d11ba0c4 | 4907 | QETH_DBF_TEXT(SETUP, 2, "qdioest"); |
4a71df50 FB |
4908 | |
4909 | qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char), | |
4910 | GFP_KERNEL); | |
104ea556 | 4911 | if (!qib_param_field) { |
4912 | rc = -ENOMEM; | |
4913 | goto out_free_nothing; | |
4914 | } | |
4a71df50 FB |
4915 | |
4916 | qeth_create_qib_param_field(card, qib_param_field); | |
4917 | qeth_create_qib_param_field_blkt(card, qib_param_field); | |
4918 | ||
b3332930 | 4919 | in_sbal_ptrs = kzalloc(card->qdio.no_in_queues * |
0da9581d | 4920 | QDIO_MAX_BUFFERS_PER_Q * sizeof(void *), |
4a71df50 FB |
4921 | GFP_KERNEL); |
4922 | if (!in_sbal_ptrs) { | |
104ea556 | 4923 | rc = -ENOMEM; |
4924 | goto out_free_qib_param; | |
4a71df50 | 4925 | } |
0da9581d | 4926 | for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) { |
4a71df50 FB |
4927 | in_sbal_ptrs[i] = (struct qdio_buffer *) |
4928 | virt_to_phys(card->qdio.in_q->bufs[i].buffer); | |
0da9581d | 4929 | } |
4a71df50 | 4930 | |
0da9581d EL |
4931 | queue_start_poll = kzalloc(sizeof(void *) * card->qdio.no_in_queues, |
4932 | GFP_KERNEL); | |
104ea556 | 4933 | if (!queue_start_poll) { |
4934 | rc = -ENOMEM; | |
4935 | goto out_free_in_sbals; | |
4936 | } | |
0da9581d | 4937 | for (i = 0; i < card->qdio.no_in_queues; ++i) |
c041f2d4 | 4938 | queue_start_poll[i] = card->discipline->start_poll; |
0da9581d EL |
4939 | |
4940 | qeth_qdio_establish_cq(card, in_sbal_ptrs, queue_start_poll); | |
104ea556 | 4941 | |
4a71df50 | 4942 | out_sbal_ptrs = |
b3332930 | 4943 | kzalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q * |
4a71df50 FB |
4944 | sizeof(void *), GFP_KERNEL); |
4945 | if (!out_sbal_ptrs) { | |
104ea556 | 4946 | rc = -ENOMEM; |
4947 | goto out_free_queue_start_poll; | |
4a71df50 FB |
4948 | } |
4949 | for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i) | |
4950 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) { | |
4951 | out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys( | |
0da9581d | 4952 | card->qdio.out_qs[i]->bufs[j]->buffer); |
4a71df50 FB |
4953 | } |
4954 | ||
4955 | memset(&init_data, 0, sizeof(struct qdio_initialize)); | |
4956 | init_data.cdev = CARD_DDEV(card); | |
4957 | init_data.q_format = qeth_get_qdio_q_format(card); | |
4958 | init_data.qib_param_field_format = 0; | |
4959 | init_data.qib_param_field = qib_param_field; | |
0da9581d | 4960 | init_data.no_input_qs = card->qdio.no_in_queues; |
4a71df50 | 4961 | init_data.no_output_qs = card->qdio.no_out_queues; |
c041f2d4 SO |
4962 | init_data.input_handler = card->discipline->input_handler; |
4963 | init_data.output_handler = card->discipline->output_handler; | |
e58b0d90 | 4964 | init_data.queue_start_poll_array = queue_start_poll; |
4a71df50 | 4965 | init_data.int_parm = (unsigned long) card; |
4a71df50 FB |
4966 | init_data.input_sbal_addr_array = (void **) in_sbal_ptrs; |
4967 | init_data.output_sbal_addr_array = (void **) out_sbal_ptrs; | |
0da9581d | 4968 | init_data.output_sbal_state_array = card->qdio.out_bufstates; |
3d6c76ff | 4969 | init_data.scan_threshold = |
0fa81cd4 | 4970 | (card->info.type == QETH_CARD_TYPE_IQD) ? 1 : 32; |
4a71df50 FB |
4971 | |
4972 | if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED, | |
4973 | QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) { | |
cc961d40 JG |
4974 | rc = qdio_allocate(&init_data); |
4975 | if (rc) { | |
4976 | atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); | |
4977 | goto out; | |
4978 | } | |
4979 | rc = qdio_establish(&init_data); | |
4980 | if (rc) { | |
4a71df50 | 4981 | atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); |
cc961d40 JG |
4982 | qdio_free(CARD_DDEV(card)); |
4983 | } | |
4a71df50 | 4984 | } |
0da9581d EL |
4985 | |
4986 | switch (card->options.cq) { | |
4987 | case QETH_CQ_ENABLED: | |
4988 | dev_info(&card->gdev->dev, "Completion Queue support enabled"); | |
4989 | break; | |
4990 | case QETH_CQ_DISABLED: | |
4991 | dev_info(&card->gdev->dev, "Completion Queue support disabled"); | |
4992 | break; | |
4993 | default: | |
4994 | break; | |
4995 | } | |
cc961d40 | 4996 | out: |
4a71df50 | 4997 | kfree(out_sbal_ptrs); |
104ea556 | 4998 | out_free_queue_start_poll: |
4999 | kfree(queue_start_poll); | |
5000 | out_free_in_sbals: | |
4a71df50 | 5001 | kfree(in_sbal_ptrs); |
104ea556 | 5002 | out_free_qib_param: |
4a71df50 | 5003 | kfree(qib_param_field); |
104ea556 | 5004 | out_free_nothing: |
4a71df50 FB |
5005 | return rc; |
5006 | } | |
5007 | ||
5008 | static void qeth_core_free_card(struct qeth_card *card) | |
5009 | { | |
5010 | ||
d11ba0c4 PT |
5011 | QETH_DBF_TEXT(SETUP, 2, "freecrd"); |
5012 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 FB |
5013 | qeth_clean_channel(&card->read); |
5014 | qeth_clean_channel(&card->write); | |
5015 | if (card->dev) | |
5016 | free_netdev(card->dev); | |
4a71df50 | 5017 | qeth_free_qdio_buffers(card); |
6bcac508 | 5018 | unregister_service_level(&card->qeth_service_level); |
4a71df50 FB |
5019 | kfree(card); |
5020 | } | |
5021 | ||
395672e0 SR |
5022 | void qeth_trace_features(struct qeth_card *card) |
5023 | { | |
5024 | QETH_CARD_TEXT(card, 2, "features"); | |
4d7def2a TR |
5025 | QETH_CARD_HEX(card, 2, &card->options.ipa4, sizeof(card->options.ipa4)); |
5026 | QETH_CARD_HEX(card, 2, &card->options.ipa6, sizeof(card->options.ipa6)); | |
5027 | QETH_CARD_HEX(card, 2, &card->options.adp, sizeof(card->options.adp)); | |
5028 | QETH_CARD_HEX(card, 2, &card->info.diagass_support, | |
5029 | sizeof(card->info.diagass_support)); | |
395672e0 SR |
5030 | } |
5031 | EXPORT_SYMBOL_GPL(qeth_trace_features); | |
5032 | ||
4a71df50 | 5033 | static struct ccw_device_id qeth_ids[] = { |
5113fec0 UB |
5034 | {CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01), |
5035 | .driver_info = QETH_CARD_TYPE_OSD}, | |
5036 | {CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05), | |
5037 | .driver_info = QETH_CARD_TYPE_IQD}, | |
5038 | {CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06), | |
5039 | .driver_info = QETH_CARD_TYPE_OSN}, | |
5040 | {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03), | |
5041 | .driver_info = QETH_CARD_TYPE_OSM}, | |
5042 | {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02), | |
5043 | .driver_info = QETH_CARD_TYPE_OSX}, | |
4a71df50 FB |
5044 | {}, |
5045 | }; | |
5046 | MODULE_DEVICE_TABLE(ccw, qeth_ids); | |
5047 | ||
5048 | static struct ccw_driver qeth_ccw_driver = { | |
3bda058b | 5049 | .driver = { |
3e70b3b8 | 5050 | .owner = THIS_MODULE, |
3bda058b SO |
5051 | .name = "qeth", |
5052 | }, | |
4a71df50 FB |
5053 | .ids = qeth_ids, |
5054 | .probe = ccwgroup_probe_ccwdev, | |
5055 | .remove = ccwgroup_remove_ccwdev, | |
5056 | }; | |
5057 | ||
4a71df50 FB |
5058 | int qeth_core_hardsetup_card(struct qeth_card *card) |
5059 | { | |
6ebb7f8d | 5060 | int retries = 3; |
4a71df50 FB |
5061 | int rc; |
5062 | ||
d11ba0c4 | 5063 | QETH_DBF_TEXT(SETUP, 2, "hrdsetup"); |
4a71df50 | 5064 | atomic_set(&card->force_alloc_skb, 0); |
725b9c04 | 5065 | qeth_update_from_chp_desc(card); |
4a71df50 | 5066 | retry: |
6ebb7f8d | 5067 | if (retries < 3) |
74eacdb9 FB |
5068 | QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n", |
5069 | dev_name(&card->gdev->dev)); | |
22ae2790 | 5070 | rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD); |
aa909224 UB |
5071 | ccw_device_set_offline(CARD_DDEV(card)); |
5072 | ccw_device_set_offline(CARD_WDEV(card)); | |
5073 | ccw_device_set_offline(CARD_RDEV(card)); | |
22ae2790 | 5074 | qdio_free(CARD_DDEV(card)); |
aa909224 UB |
5075 | rc = ccw_device_set_online(CARD_RDEV(card)); |
5076 | if (rc) | |
5077 | goto retriable; | |
5078 | rc = ccw_device_set_online(CARD_WDEV(card)); | |
5079 | if (rc) | |
5080 | goto retriable; | |
5081 | rc = ccw_device_set_online(CARD_DDEV(card)); | |
5082 | if (rc) | |
5083 | goto retriable; | |
aa909224 | 5084 | retriable: |
4a71df50 | 5085 | if (rc == -ERESTARTSYS) { |
d11ba0c4 | 5086 | QETH_DBF_TEXT(SETUP, 2, "break1"); |
4a71df50 FB |
5087 | return rc; |
5088 | } else if (rc) { | |
d11ba0c4 | 5089 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
6ebb7f8d | 5090 | if (--retries < 0) |
4a71df50 FB |
5091 | goto out; |
5092 | else | |
5093 | goto retry; | |
5094 | } | |
d0ff1f52 | 5095 | qeth_determine_capabilities(card); |
4a71df50 FB |
5096 | qeth_init_tokens(card); |
5097 | qeth_init_func_level(card); | |
5098 | rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb); | |
5099 | if (rc == -ERESTARTSYS) { | |
d11ba0c4 | 5100 | QETH_DBF_TEXT(SETUP, 2, "break2"); |
4a71df50 FB |
5101 | return rc; |
5102 | } else if (rc) { | |
d11ba0c4 | 5103 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
4a71df50 FB |
5104 | if (--retries < 0) |
5105 | goto out; | |
5106 | else | |
5107 | goto retry; | |
5108 | } | |
5109 | rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb); | |
5110 | if (rc == -ERESTARTSYS) { | |
d11ba0c4 | 5111 | QETH_DBF_TEXT(SETUP, 2, "break3"); |
4a71df50 FB |
5112 | return rc; |
5113 | } else if (rc) { | |
d11ba0c4 | 5114 | QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); |
4a71df50 FB |
5115 | if (--retries < 0) |
5116 | goto out; | |
5117 | else | |
5118 | goto retry; | |
5119 | } | |
908abbb5 | 5120 | card->read_or_write_problem = 0; |
4a71df50 FB |
5121 | rc = qeth_mpc_initialize(card); |
5122 | if (rc) { | |
d11ba0c4 | 5123 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); |
4a71df50 FB |
5124 | goto out; |
5125 | } | |
1da74b1c | 5126 | |
10340510 JW |
5127 | rc = qeth_send_startlan(card); |
5128 | if (rc) { | |
5129 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); | |
5130 | if (rc == IPA_RC_LAN_OFFLINE) { | |
5131 | dev_warn(&card->gdev->dev, | |
5132 | "The LAN is offline\n"); | |
5133 | card->lan_online = 0; | |
5134 | } else { | |
5135 | rc = -ENODEV; | |
5136 | goto out; | |
5137 | } | |
5138 | } else | |
5139 | card->lan_online = 1; | |
5140 | ||
1da74b1c | 5141 | card->options.ipa4.supported_funcs = 0; |
4d7def2a | 5142 | card->options.ipa6.supported_funcs = 0; |
1da74b1c | 5143 | card->options.adp.supported_funcs = 0; |
b4d72c08 | 5144 | card->options.sbp.supported_funcs = 0; |
1da74b1c | 5145 | card->info.diagass_support = 0; |
1aec42bc TR |
5146 | rc = qeth_query_ipassists(card, QETH_PROT_IPV4); |
5147 | if (rc == -ENOMEM) | |
5148 | goto out; | |
5149 | if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) { | |
5150 | rc = qeth_query_setadapterparms(card); | |
5151 | if (rc < 0) { | |
10340510 | 5152 | QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc); |
1aec42bc TR |
5153 | goto out; |
5154 | } | |
5155 | } | |
5156 | if (qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) { | |
5157 | rc = qeth_query_setdiagass(card); | |
5158 | if (rc < 0) { | |
10340510 | 5159 | QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc); |
1aec42bc TR |
5160 | goto out; |
5161 | } | |
5162 | } | |
4a71df50 FB |
5163 | return 0; |
5164 | out: | |
74eacdb9 FB |
5165 | dev_warn(&card->gdev->dev, "The qeth device driver failed to recover " |
5166 | "an error on the device\n"); | |
5167 | QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n", | |
5168 | dev_name(&card->gdev->dev), rc); | |
4a71df50 FB |
5169 | return rc; |
5170 | } | |
5171 | EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card); | |
5172 | ||
8d68af6a JW |
5173 | static void qeth_create_skb_frag(struct qdio_buffer_element *element, |
5174 | struct sk_buff *skb, int offset, int data_len) | |
4a71df50 FB |
5175 | { |
5176 | struct page *page = virt_to_page(element->addr); | |
b6f72f96 | 5177 | unsigned int next_frag; |
b3332930 | 5178 | |
8d68af6a JW |
5179 | /* first fill the linear space */ |
5180 | if (!skb->len) { | |
5181 | unsigned int linear = min(data_len, skb_tailroom(skb)); | |
0da9581d | 5182 | |
8d68af6a JW |
5183 | skb_put_data(skb, element->addr + offset, linear); |
5184 | data_len -= linear; | |
5185 | if (!data_len) | |
5186 | return; | |
5187 | offset += linear; | |
5188 | /* fall through to add page frag for remaining data */ | |
4a71df50 | 5189 | } |
0da9581d | 5190 | |
8d68af6a | 5191 | next_frag = skb_shinfo(skb)->nr_frags; |
b6f72f96 | 5192 | get_page(page); |
8d68af6a | 5193 | skb_add_rx_frag(skb, next_frag, page, offset, data_len, data_len); |
4a71df50 FB |
5194 | } |
5195 | ||
bca51650 TR |
5196 | static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale) |
5197 | { | |
5198 | return (sbale->eflags & SBAL_EFLAGS_LAST_ENTRY); | |
5199 | } | |
5200 | ||
4a71df50 | 5201 | struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card, |
b3332930 | 5202 | struct qeth_qdio_buffer *qethbuffer, |
4a71df50 FB |
5203 | struct qdio_buffer_element **__element, int *__offset, |
5204 | struct qeth_hdr **hdr) | |
5205 | { | |
5206 | struct qdio_buffer_element *element = *__element; | |
b3332930 | 5207 | struct qdio_buffer *buffer = qethbuffer->buffer; |
4a71df50 | 5208 | int offset = *__offset; |
8d68af6a | 5209 | struct sk_buff *skb; |
76b11f8e | 5210 | int skb_len = 0; |
4a71df50 FB |
5211 | void *data_ptr; |
5212 | int data_len; | |
5213 | int headroom = 0; | |
5214 | int use_rx_sg = 0; | |
4a71df50 | 5215 | |
4a71df50 | 5216 | /* qeth_hdr must not cross element boundaries */ |
864c17c3 | 5217 | while (element->length < offset + sizeof(struct qeth_hdr)) { |
4a71df50 FB |
5218 | if (qeth_is_last_sbale(element)) |
5219 | return NULL; | |
5220 | element++; | |
5221 | offset = 0; | |
4a71df50 FB |
5222 | } |
5223 | *hdr = element->addr + offset; | |
5224 | ||
5225 | offset += sizeof(struct qeth_hdr); | |
76b11f8e UB |
5226 | switch ((*hdr)->hdr.l2.id) { |
5227 | case QETH_HEADER_TYPE_LAYER2: | |
5228 | skb_len = (*hdr)->hdr.l2.pkt_length; | |
5229 | break; | |
5230 | case QETH_HEADER_TYPE_LAYER3: | |
4a71df50 | 5231 | skb_len = (*hdr)->hdr.l3.length; |
1abd2296 | 5232 | headroom = ETH_HLEN; |
76b11f8e UB |
5233 | break; |
5234 | case QETH_HEADER_TYPE_OSN: | |
5235 | skb_len = (*hdr)->hdr.osn.pdu_length; | |
5236 | headroom = sizeof(struct qeth_hdr); | |
5237 | break; | |
5238 | default: | |
5239 | break; | |
4a71df50 FB |
5240 | } |
5241 | ||
5242 | if (!skb_len) | |
5243 | return NULL; | |
5244 | ||
b3332930 FB |
5245 | if (((skb_len >= card->options.rx_sg_cb) && |
5246 | (!(card->info.type == QETH_CARD_TYPE_OSN)) && | |
5247 | (!atomic_read(&card->force_alloc_skb))) || | |
8d68af6a | 5248 | (card->options.cq == QETH_CQ_ENABLED)) |
4a71df50 | 5249 | use_rx_sg = 1; |
8d68af6a JW |
5250 | |
5251 | if (use_rx_sg && qethbuffer->rx_skb) { | |
5252 | /* QETH_CQ_ENABLED only: */ | |
5253 | skb = qethbuffer->rx_skb; | |
5254 | qethbuffer->rx_skb = NULL; | |
4a71df50 | 5255 | } else { |
8d68af6a JW |
5256 | unsigned int linear = (use_rx_sg) ? QETH_RX_PULL_LEN : skb_len; |
5257 | ||
5258 | skb = dev_alloc_skb(linear + headroom); | |
4a71df50 | 5259 | } |
8d68af6a JW |
5260 | if (!skb) |
5261 | goto no_mem; | |
5262 | if (headroom) | |
5263 | skb_reserve(skb, headroom); | |
4a71df50 FB |
5264 | |
5265 | data_ptr = element->addr + offset; | |
5266 | while (skb_len) { | |
5267 | data_len = min(skb_len, (int)(element->length - offset)); | |
5268 | if (data_len) { | |
8d68af6a JW |
5269 | if (use_rx_sg) |
5270 | qeth_create_skb_frag(element, skb, offset, | |
5271 | data_len); | |
5272 | else | |
59ae1d12 | 5273 | skb_put_data(skb, data_ptr, data_len); |
4a71df50 FB |
5274 | } |
5275 | skb_len -= data_len; | |
5276 | if (skb_len) { | |
5277 | if (qeth_is_last_sbale(element)) { | |
847a50fd | 5278 | QETH_CARD_TEXT(card, 4, "unexeob"); |
efd5d9a4 | 5279 | QETH_CARD_HEX(card, 2, buffer, sizeof(void *)); |
4a71df50 FB |
5280 | dev_kfree_skb_any(skb); |
5281 | card->stats.rx_errors++; | |
5282 | return NULL; | |
5283 | } | |
5284 | element++; | |
5285 | offset = 0; | |
5286 | data_ptr = element->addr; | |
5287 | } else { | |
5288 | offset += data_len; | |
5289 | } | |
5290 | } | |
5291 | *__element = element; | |
5292 | *__offset = offset; | |
5293 | if (use_rx_sg && card->options.performance_stats) { | |
5294 | card->perf_stats.sg_skbs_rx++; | |
5295 | card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags; | |
5296 | } | |
5297 | return skb; | |
5298 | no_mem: | |
5299 | if (net_ratelimit()) { | |
847a50fd | 5300 | QETH_CARD_TEXT(card, 2, "noskbmem"); |
4a71df50 FB |
5301 | } |
5302 | card->stats.rx_dropped++; | |
5303 | return NULL; | |
5304 | } | |
5305 | EXPORT_SYMBOL_GPL(qeth_core_get_next_skb); | |
5306 | ||
d73ef324 JW |
5307 | int qeth_poll(struct napi_struct *napi, int budget) |
5308 | { | |
5309 | struct qeth_card *card = container_of(napi, struct qeth_card, napi); | |
5310 | int work_done = 0; | |
5311 | struct qeth_qdio_buffer *buffer; | |
5312 | int done; | |
5313 | int new_budget = budget; | |
5314 | ||
5315 | if (card->options.performance_stats) { | |
5316 | card->perf_stats.inbound_cnt++; | |
5317 | card->perf_stats.inbound_start_time = qeth_get_micros(); | |
5318 | } | |
5319 | ||
5320 | while (1) { | |
5321 | if (!card->rx.b_count) { | |
5322 | card->rx.qdio_err = 0; | |
5323 | card->rx.b_count = qdio_get_next_buffers( | |
5324 | card->data.ccwdev, 0, &card->rx.b_index, | |
5325 | &card->rx.qdio_err); | |
5326 | if (card->rx.b_count <= 0) { | |
5327 | card->rx.b_count = 0; | |
5328 | break; | |
5329 | } | |
5330 | card->rx.b_element = | |
5331 | &card->qdio.in_q->bufs[card->rx.b_index] | |
5332 | .buffer->element[0]; | |
5333 | card->rx.e_offset = 0; | |
5334 | } | |
5335 | ||
5336 | while (card->rx.b_count) { | |
5337 | buffer = &card->qdio.in_q->bufs[card->rx.b_index]; | |
5338 | if (!(card->rx.qdio_err && | |
5339 | qeth_check_qdio_errors(card, buffer->buffer, | |
5340 | card->rx.qdio_err, "qinerr"))) | |
5341 | work_done += | |
5342 | card->discipline->process_rx_buffer( | |
5343 | card, new_budget, &done); | |
5344 | else | |
5345 | done = 1; | |
5346 | ||
5347 | if (done) { | |
5348 | if (card->options.performance_stats) | |
5349 | card->perf_stats.bufs_rec++; | |
5350 | qeth_put_buffer_pool_entry(card, | |
5351 | buffer->pool_entry); | |
5352 | qeth_queue_input_buffer(card, card->rx.b_index); | |
5353 | card->rx.b_count--; | |
5354 | if (card->rx.b_count) { | |
5355 | card->rx.b_index = | |
5356 | (card->rx.b_index + 1) % | |
5357 | QDIO_MAX_BUFFERS_PER_Q; | |
5358 | card->rx.b_element = | |
5359 | &card->qdio.in_q | |
5360 | ->bufs[card->rx.b_index] | |
5361 | .buffer->element[0]; | |
5362 | card->rx.e_offset = 0; | |
5363 | } | |
5364 | } | |
5365 | ||
5366 | if (work_done >= budget) | |
5367 | goto out; | |
5368 | else | |
5369 | new_budget = budget - work_done; | |
5370 | } | |
5371 | } | |
5372 | ||
978759e8 | 5373 | napi_complete_done(napi, work_done); |
d73ef324 JW |
5374 | if (qdio_start_irq(card->data.ccwdev, 0)) |
5375 | napi_schedule(&card->napi); | |
5376 | out: | |
5377 | if (card->options.performance_stats) | |
5378 | card->perf_stats.inbound_time += qeth_get_micros() - | |
5379 | card->perf_stats.inbound_start_time; | |
5380 | return work_done; | |
5381 | } | |
5382 | EXPORT_SYMBOL_GPL(qeth_poll); | |
5383 | ||
8f43fb00 TR |
5384 | int qeth_setassparms_cb(struct qeth_card *card, |
5385 | struct qeth_reply *reply, unsigned long data) | |
4d7def2a TR |
5386 | { |
5387 | struct qeth_ipa_cmd *cmd; | |
5388 | ||
5389 | QETH_CARD_TEXT(card, 4, "defadpcb"); | |
5390 | ||
5391 | cmd = (struct qeth_ipa_cmd *) data; | |
5392 | if (cmd->hdr.return_code == 0) { | |
5393 | cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code; | |
5394 | if (cmd->hdr.prot_version == QETH_PROT_IPV4) | |
5395 | card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled; | |
5396 | if (cmd->hdr.prot_version == QETH_PROT_IPV6) | |
5397 | card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled; | |
5398 | } | |
4d7def2a TR |
5399 | return 0; |
5400 | } | |
8f43fb00 | 5401 | EXPORT_SYMBOL_GPL(qeth_setassparms_cb); |
4d7def2a | 5402 | |
b475e316 TR |
5403 | struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *card, |
5404 | enum qeth_ipa_funcs ipa_func, | |
5405 | __u16 cmd_code, __u16 len, | |
5406 | enum qeth_prot_versions prot) | |
4d7def2a TR |
5407 | { |
5408 | struct qeth_cmd_buffer *iob; | |
5409 | struct qeth_ipa_cmd *cmd; | |
5410 | ||
5411 | QETH_CARD_TEXT(card, 4, "getasscm"); | |
5412 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot); | |
5413 | ||
5414 | if (iob) { | |
5415 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
5416 | cmd->data.setassparms.hdr.assist_no = ipa_func; | |
5417 | cmd->data.setassparms.hdr.length = 8 + len; | |
5418 | cmd->data.setassparms.hdr.command_code = cmd_code; | |
5419 | cmd->data.setassparms.hdr.return_code = 0; | |
5420 | cmd->data.setassparms.hdr.seq_no = 0; | |
5421 | } | |
5422 | ||
5423 | return iob; | |
5424 | } | |
b475e316 | 5425 | EXPORT_SYMBOL_GPL(qeth_get_setassparms_cmd); |
4d7def2a TR |
5426 | |
5427 | int qeth_send_setassparms(struct qeth_card *card, | |
5428 | struct qeth_cmd_buffer *iob, __u16 len, long data, | |
5429 | int (*reply_cb)(struct qeth_card *, | |
5430 | struct qeth_reply *, unsigned long), | |
5431 | void *reply_param) | |
5432 | { | |
5433 | int rc; | |
5434 | struct qeth_ipa_cmd *cmd; | |
5435 | ||
5436 | QETH_CARD_TEXT(card, 4, "sendassp"); | |
5437 | ||
5438 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
5439 | if (len <= sizeof(__u32)) | |
5440 | cmd->data.setassparms.data.flags_32bit = (__u32) data; | |
5441 | else /* (len > sizeof(__u32)) */ | |
5442 | memcpy(&cmd->data.setassparms.data, (void *) data, len); | |
5443 | ||
5444 | rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param); | |
5445 | return rc; | |
5446 | } | |
5447 | EXPORT_SYMBOL_GPL(qeth_send_setassparms); | |
5448 | ||
5449 | int qeth_send_simple_setassparms(struct qeth_card *card, | |
5450 | enum qeth_ipa_funcs ipa_func, | |
5451 | __u16 cmd_code, long data) | |
5452 | { | |
5453 | int rc; | |
5454 | int length = 0; | |
5455 | struct qeth_cmd_buffer *iob; | |
5456 | ||
5457 | QETH_CARD_TEXT(card, 4, "simassp4"); | |
5458 | if (data) | |
5459 | length = sizeof(__u32); | |
5460 | iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code, | |
5461 | length, QETH_PROT_IPV4); | |
5462 | if (!iob) | |
5463 | return -ENOMEM; | |
5464 | rc = qeth_send_setassparms(card, iob, length, data, | |
5465 | qeth_setassparms_cb, NULL); | |
5466 | return rc; | |
5467 | } | |
5468 | EXPORT_SYMBOL_GPL(qeth_send_simple_setassparms); | |
5469 | ||
4a71df50 FB |
5470 | static void qeth_unregister_dbf_views(void) |
5471 | { | |
d11ba0c4 PT |
5472 | int x; |
5473 | for (x = 0; x < QETH_DBF_INFOS; x++) { | |
5474 | debug_unregister(qeth_dbf[x].id); | |
5475 | qeth_dbf[x].id = NULL; | |
5476 | } | |
4a71df50 FB |
5477 | } |
5478 | ||
8e96c51c | 5479 | void qeth_dbf_longtext(debug_info_t *id, int level, char *fmt, ...) |
cd023216 PT |
5480 | { |
5481 | char dbf_txt_buf[32]; | |
345aa66e | 5482 | va_list args; |
cd023216 | 5483 | |
8e6a8285 | 5484 | if (!debug_level_enabled(id, level)) |
cd023216 | 5485 | return; |
345aa66e PT |
5486 | va_start(args, fmt); |
5487 | vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args); | |
5488 | va_end(args); | |
8e96c51c | 5489 | debug_text_event(id, level, dbf_txt_buf); |
cd023216 PT |
5490 | } |
5491 | EXPORT_SYMBOL_GPL(qeth_dbf_longtext); | |
5492 | ||
4a71df50 FB |
5493 | static int qeth_register_dbf_views(void) |
5494 | { | |
d11ba0c4 PT |
5495 | int ret; |
5496 | int x; | |
5497 | ||
5498 | for (x = 0; x < QETH_DBF_INFOS; x++) { | |
5499 | /* register the areas */ | |
5500 | qeth_dbf[x].id = debug_register(qeth_dbf[x].name, | |
5501 | qeth_dbf[x].pages, | |
5502 | qeth_dbf[x].areas, | |
5503 | qeth_dbf[x].len); | |
5504 | if (qeth_dbf[x].id == NULL) { | |
5505 | qeth_unregister_dbf_views(); | |
5506 | return -ENOMEM; | |
5507 | } | |
4a71df50 | 5508 | |
d11ba0c4 PT |
5509 | /* register a view */ |
5510 | ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view); | |
5511 | if (ret) { | |
5512 | qeth_unregister_dbf_views(); | |
5513 | return ret; | |
5514 | } | |
4a71df50 | 5515 | |
d11ba0c4 PT |
5516 | /* set a passing level */ |
5517 | debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level); | |
5518 | } | |
4a71df50 FB |
5519 | |
5520 | return 0; | |
5521 | } | |
5522 | ||
5523 | int qeth_core_load_discipline(struct qeth_card *card, | |
5524 | enum qeth_discipline_id discipline) | |
5525 | { | |
5526 | int rc = 0; | |
c70eb09d | 5527 | |
2022e00c | 5528 | mutex_lock(&qeth_mod_mutex); |
4a71df50 FB |
5529 | switch (discipline) { |
5530 | case QETH_DISCIPLINE_LAYER3: | |
c041f2d4 SO |
5531 | card->discipline = try_then_request_module( |
5532 | symbol_get(qeth_l3_discipline), "qeth_l3"); | |
4a71df50 FB |
5533 | break; |
5534 | case QETH_DISCIPLINE_LAYER2: | |
c041f2d4 SO |
5535 | card->discipline = try_then_request_module( |
5536 | symbol_get(qeth_l2_discipline), "qeth_l2"); | |
4a71df50 | 5537 | break; |
c70eb09d JW |
5538 | default: |
5539 | break; | |
4a71df50 | 5540 | } |
c70eb09d | 5541 | |
c041f2d4 | 5542 | if (!card->discipline) { |
74eacdb9 FB |
5543 | dev_err(&card->gdev->dev, "There is no kernel module to " |
5544 | "support discipline %d\n", discipline); | |
4a71df50 FB |
5545 | rc = -EINVAL; |
5546 | } | |
2022e00c | 5547 | mutex_unlock(&qeth_mod_mutex); |
4a71df50 FB |
5548 | return rc; |
5549 | } | |
5550 | ||
5551 | void qeth_core_free_discipline(struct qeth_card *card) | |
5552 | { | |
5553 | if (card->options.layer2) | |
c041f2d4 | 5554 | symbol_put(qeth_l2_discipline); |
4a71df50 | 5555 | else |
c041f2d4 SO |
5556 | symbol_put(qeth_l3_discipline); |
5557 | card->discipline = NULL; | |
4a71df50 FB |
5558 | } |
5559 | ||
2d2ebb3e | 5560 | const struct device_type qeth_generic_devtype = { |
b7169c51 SO |
5561 | .name = "qeth_generic", |
5562 | .groups = qeth_generic_attr_groups, | |
5563 | }; | |
2d2ebb3e JW |
5564 | EXPORT_SYMBOL_GPL(qeth_generic_devtype); |
5565 | ||
b7169c51 SO |
5566 | static const struct device_type qeth_osn_devtype = { |
5567 | .name = "qeth_osn", | |
5568 | .groups = qeth_osn_attr_groups, | |
5569 | }; | |
5570 | ||
819dc537 SR |
5571 | #define DBF_NAME_LEN 20 |
5572 | ||
5573 | struct qeth_dbf_entry { | |
5574 | char dbf_name[DBF_NAME_LEN]; | |
5575 | debug_info_t *dbf_info; | |
5576 | struct list_head dbf_list; | |
5577 | }; | |
5578 | ||
5579 | static LIST_HEAD(qeth_dbf_list); | |
5580 | static DEFINE_MUTEX(qeth_dbf_list_mutex); | |
5581 | ||
5582 | static debug_info_t *qeth_get_dbf_entry(char *name) | |
5583 | { | |
5584 | struct qeth_dbf_entry *entry; | |
5585 | debug_info_t *rc = NULL; | |
5586 | ||
5587 | mutex_lock(&qeth_dbf_list_mutex); | |
5588 | list_for_each_entry(entry, &qeth_dbf_list, dbf_list) { | |
5589 | if (strcmp(entry->dbf_name, name) == 0) { | |
5590 | rc = entry->dbf_info; | |
5591 | break; | |
5592 | } | |
5593 | } | |
5594 | mutex_unlock(&qeth_dbf_list_mutex); | |
5595 | return rc; | |
5596 | } | |
5597 | ||
5598 | static int qeth_add_dbf_entry(struct qeth_card *card, char *name) | |
5599 | { | |
5600 | struct qeth_dbf_entry *new_entry; | |
5601 | ||
5602 | card->debug = debug_register(name, 2, 1, 8); | |
5603 | if (!card->debug) { | |
5604 | QETH_DBF_TEXT_(SETUP, 2, "%s", "qcdbf"); | |
5605 | goto err; | |
5606 | } | |
5607 | if (debug_register_view(card->debug, &debug_hex_ascii_view)) | |
5608 | goto err_dbg; | |
5609 | new_entry = kzalloc(sizeof(struct qeth_dbf_entry), GFP_KERNEL); | |
5610 | if (!new_entry) | |
5611 | goto err_dbg; | |
5612 | strncpy(new_entry->dbf_name, name, DBF_NAME_LEN); | |
5613 | new_entry->dbf_info = card->debug; | |
5614 | mutex_lock(&qeth_dbf_list_mutex); | |
5615 | list_add(&new_entry->dbf_list, &qeth_dbf_list); | |
5616 | mutex_unlock(&qeth_dbf_list_mutex); | |
5617 | ||
5618 | return 0; | |
5619 | ||
5620 | err_dbg: | |
5621 | debug_unregister(card->debug); | |
5622 | err: | |
5623 | return -ENOMEM; | |
5624 | } | |
5625 | ||
5626 | static void qeth_clear_dbf_list(void) | |
5627 | { | |
5628 | struct qeth_dbf_entry *entry, *tmp; | |
5629 | ||
5630 | mutex_lock(&qeth_dbf_list_mutex); | |
5631 | list_for_each_entry_safe(entry, tmp, &qeth_dbf_list, dbf_list) { | |
5632 | list_del(&entry->dbf_list); | |
5633 | debug_unregister(entry->dbf_info); | |
5634 | kfree(entry); | |
5635 | } | |
5636 | mutex_unlock(&qeth_dbf_list_mutex); | |
5637 | } | |
5638 | ||
4a71df50 FB |
5639 | static int qeth_core_probe_device(struct ccwgroup_device *gdev) |
5640 | { | |
5641 | struct qeth_card *card; | |
5642 | struct device *dev; | |
5643 | int rc; | |
c70eb09d | 5644 | enum qeth_discipline_id enforced_disc; |
4a71df50 | 5645 | unsigned long flags; |
819dc537 | 5646 | char dbf_name[DBF_NAME_LEN]; |
4a71df50 | 5647 | |
d11ba0c4 | 5648 | QETH_DBF_TEXT(SETUP, 2, "probedev"); |
4a71df50 FB |
5649 | |
5650 | dev = &gdev->dev; | |
5651 | if (!get_device(dev)) | |
5652 | return -ENODEV; | |
5653 | ||
2a0217d5 | 5654 | QETH_DBF_TEXT_(SETUP, 2, "%s", dev_name(&gdev->dev)); |
4a71df50 FB |
5655 | |
5656 | card = qeth_alloc_card(); | |
5657 | if (!card) { | |
d11ba0c4 | 5658 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM); |
4a71df50 FB |
5659 | rc = -ENOMEM; |
5660 | goto err_dev; | |
5661 | } | |
af039068 CO |
5662 | |
5663 | snprintf(dbf_name, sizeof(dbf_name), "qeth_card_%s", | |
5664 | dev_name(&gdev->dev)); | |
819dc537 | 5665 | card->debug = qeth_get_dbf_entry(dbf_name); |
af039068 | 5666 | if (!card->debug) { |
819dc537 SR |
5667 | rc = qeth_add_dbf_entry(card, dbf_name); |
5668 | if (rc) | |
5669 | goto err_card; | |
af039068 | 5670 | } |
af039068 | 5671 | |
4a71df50 FB |
5672 | card->read.ccwdev = gdev->cdev[0]; |
5673 | card->write.ccwdev = gdev->cdev[1]; | |
5674 | card->data.ccwdev = gdev->cdev[2]; | |
5675 | dev_set_drvdata(&gdev->dev, card); | |
5676 | card->gdev = gdev; | |
5677 | gdev->cdev[0]->handler = qeth_irq; | |
5678 | gdev->cdev[1]->handler = qeth_irq; | |
5679 | gdev->cdev[2]->handler = qeth_irq; | |
5680 | ||
ed2e93ef | 5681 | qeth_determine_card_type(card); |
4a71df50 FB |
5682 | rc = qeth_setup_card(card); |
5683 | if (rc) { | |
d11ba0c4 | 5684 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
819dc537 | 5685 | goto err_card; |
4a71df50 FB |
5686 | } |
5687 | ||
c70eb09d JW |
5688 | qeth_determine_capabilities(card); |
5689 | enforced_disc = qeth_enforce_discipline(card); | |
5690 | switch (enforced_disc) { | |
5691 | case QETH_DISCIPLINE_UNDETERMINED: | |
5692 | gdev->dev.type = &qeth_generic_devtype; | |
5693 | break; | |
5694 | default: | |
5695 | card->info.layer_enforced = true; | |
5696 | rc = qeth_core_load_discipline(card, enforced_disc); | |
5113fec0 | 5697 | if (rc) |
819dc537 | 5698 | goto err_card; |
2d2ebb3e JW |
5699 | |
5700 | gdev->dev.type = (card->info.type != QETH_CARD_TYPE_OSN) | |
5701 | ? card->discipline->devtype | |
5702 | : &qeth_osn_devtype; | |
c041f2d4 | 5703 | rc = card->discipline->setup(card->gdev); |
4a71df50 | 5704 | if (rc) |
5113fec0 | 5705 | goto err_disc; |
2d2ebb3e | 5706 | break; |
4a71df50 FB |
5707 | } |
5708 | ||
5709 | write_lock_irqsave(&qeth_core_card_list.rwlock, flags); | |
5710 | list_add_tail(&card->list, &qeth_core_card_list.list); | |
5711 | write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); | |
5712 | return 0; | |
5713 | ||
5113fec0 UB |
5714 | err_disc: |
5715 | qeth_core_free_discipline(card); | |
4a71df50 FB |
5716 | err_card: |
5717 | qeth_core_free_card(card); | |
5718 | err_dev: | |
5719 | put_device(dev); | |
5720 | return rc; | |
5721 | } | |
5722 | ||
5723 | static void qeth_core_remove_device(struct ccwgroup_device *gdev) | |
5724 | { | |
5725 | unsigned long flags; | |
5726 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
5727 | ||
28a7e4c9 | 5728 | QETH_DBF_TEXT(SETUP, 2, "removedv"); |
4a71df50 | 5729 | |
c041f2d4 SO |
5730 | if (card->discipline) { |
5731 | card->discipline->remove(gdev); | |
9dc48ccc UB |
5732 | qeth_core_free_discipline(card); |
5733 | } | |
5734 | ||
4a71df50 FB |
5735 | write_lock_irqsave(&qeth_core_card_list.rwlock, flags); |
5736 | list_del(&card->list); | |
5737 | write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); | |
5738 | qeth_core_free_card(card); | |
5739 | dev_set_drvdata(&gdev->dev, NULL); | |
5740 | put_device(&gdev->dev); | |
5741 | return; | |
5742 | } | |
5743 | ||
5744 | static int qeth_core_set_online(struct ccwgroup_device *gdev) | |
5745 | { | |
5746 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
5747 | int rc = 0; | |
c70eb09d | 5748 | enum qeth_discipline_id def_discipline; |
4a71df50 | 5749 | |
c041f2d4 | 5750 | if (!card->discipline) { |
4a71df50 FB |
5751 | if (card->info.type == QETH_CARD_TYPE_IQD) |
5752 | def_discipline = QETH_DISCIPLINE_LAYER3; | |
5753 | else | |
5754 | def_discipline = QETH_DISCIPLINE_LAYER2; | |
5755 | rc = qeth_core_load_discipline(card, def_discipline); | |
5756 | if (rc) | |
5757 | goto err; | |
c041f2d4 | 5758 | rc = card->discipline->setup(card->gdev); |
9111e788 UB |
5759 | if (rc) { |
5760 | qeth_core_free_discipline(card); | |
4a71df50 | 5761 | goto err; |
9111e788 | 5762 | } |
4a71df50 | 5763 | } |
c041f2d4 | 5764 | rc = card->discipline->set_online(gdev); |
4a71df50 FB |
5765 | err: |
5766 | return rc; | |
5767 | } | |
5768 | ||
5769 | static int qeth_core_set_offline(struct ccwgroup_device *gdev) | |
5770 | { | |
5771 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
c041f2d4 | 5772 | return card->discipline->set_offline(gdev); |
4a71df50 FB |
5773 | } |
5774 | ||
5775 | static void qeth_core_shutdown(struct ccwgroup_device *gdev) | |
5776 | { | |
5777 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
96d1bb53 JW |
5778 | qeth_set_allowed_threads(card, 0, 1); |
5779 | if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap) | |
5780 | qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); | |
5781 | qeth_qdio_clear_card(card, 0); | |
5782 | qeth_clear_qdio_buffers(card); | |
5783 | qdio_free(CARD_DDEV(card)); | |
4a71df50 FB |
5784 | } |
5785 | ||
bbcfcdc8 FB |
5786 | static int qeth_core_freeze(struct ccwgroup_device *gdev) |
5787 | { | |
5788 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
c041f2d4 SO |
5789 | if (card->discipline && card->discipline->freeze) |
5790 | return card->discipline->freeze(gdev); | |
bbcfcdc8 FB |
5791 | return 0; |
5792 | } | |
5793 | ||
5794 | static int qeth_core_thaw(struct ccwgroup_device *gdev) | |
5795 | { | |
5796 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
c041f2d4 SO |
5797 | if (card->discipline && card->discipline->thaw) |
5798 | return card->discipline->thaw(gdev); | |
bbcfcdc8 FB |
5799 | return 0; |
5800 | } | |
5801 | ||
5802 | static int qeth_core_restore(struct ccwgroup_device *gdev) | |
5803 | { | |
5804 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
c041f2d4 SO |
5805 | if (card->discipline && card->discipline->restore) |
5806 | return card->discipline->restore(gdev); | |
bbcfcdc8 FB |
5807 | return 0; |
5808 | } | |
5809 | ||
4a71df50 | 5810 | static struct ccwgroup_driver qeth_core_ccwgroup_driver = { |
3c190c51 SO |
5811 | .driver = { |
5812 | .owner = THIS_MODULE, | |
5813 | .name = "qeth", | |
5814 | }, | |
f9a5d70c | 5815 | .ccw_driver = &qeth_ccw_driver, |
b7169c51 | 5816 | .setup = qeth_core_probe_device, |
4a71df50 FB |
5817 | .remove = qeth_core_remove_device, |
5818 | .set_online = qeth_core_set_online, | |
5819 | .set_offline = qeth_core_set_offline, | |
5820 | .shutdown = qeth_core_shutdown, | |
6ffa4d1b JW |
5821 | .prepare = NULL, |
5822 | .complete = NULL, | |
bbcfcdc8 FB |
5823 | .freeze = qeth_core_freeze, |
5824 | .thaw = qeth_core_thaw, | |
5825 | .restore = qeth_core_restore, | |
4a71df50 FB |
5826 | }; |
5827 | ||
36369569 GKH |
5828 | static ssize_t group_store(struct device_driver *ddrv, const char *buf, |
5829 | size_t count) | |
4a71df50 FB |
5830 | { |
5831 | int err; | |
4a71df50 | 5832 | |
b7169c51 | 5833 | err = ccwgroup_create_dev(qeth_core_root_dev, |
b7169c51 SO |
5834 | &qeth_core_ccwgroup_driver, 3, buf); |
5835 | ||
5836 | return err ? err : count; | |
5837 | } | |
36369569 | 5838 | static DRIVER_ATTR_WO(group); |
4a71df50 | 5839 | |
f47e2256 SO |
5840 | static struct attribute *qeth_drv_attrs[] = { |
5841 | &driver_attr_group.attr, | |
5842 | NULL, | |
5843 | }; | |
5844 | static struct attribute_group qeth_drv_attr_group = { | |
5845 | .attrs = qeth_drv_attrs, | |
5846 | }; | |
5847 | static const struct attribute_group *qeth_drv_attr_groups[] = { | |
5848 | &qeth_drv_attr_group, | |
5849 | NULL, | |
5850 | }; | |
5851 | ||
942d6984 JW |
5852 | int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
5853 | { | |
5854 | struct qeth_card *card = dev->ml_priv; | |
5855 | struct mii_ioctl_data *mii_data; | |
5856 | int rc = 0; | |
5857 | ||
5858 | if (!card) | |
5859 | return -ENODEV; | |
5860 | ||
5861 | if (!qeth_card_hw_is_reachable(card)) | |
5862 | return -ENODEV; | |
5863 | ||
5864 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
5865 | return -EPERM; | |
5866 | ||
5867 | switch (cmd) { | |
5868 | case SIOC_QETH_ADP_SET_SNMP_CONTROL: | |
5869 | rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data); | |
5870 | break; | |
5871 | case SIOC_QETH_GET_CARD_TYPE: | |
5872 | if ((card->info.type == QETH_CARD_TYPE_OSD || | |
5873 | card->info.type == QETH_CARD_TYPE_OSM || | |
5874 | card->info.type == QETH_CARD_TYPE_OSX) && | |
5875 | !card->info.guestlan) | |
5876 | return 1; | |
5877 | else | |
5878 | return 0; | |
5879 | case SIOCGMIIPHY: | |
5880 | mii_data = if_mii(rq); | |
5881 | mii_data->phy_id = 0; | |
5882 | break; | |
5883 | case SIOCGMIIREG: | |
5884 | mii_data = if_mii(rq); | |
5885 | if (mii_data->phy_id != 0) | |
5886 | rc = -EINVAL; | |
5887 | else | |
5888 | mii_data->val_out = qeth_mdio_read(dev, | |
5889 | mii_data->phy_id, mii_data->reg_num); | |
5890 | break; | |
5891 | case SIOC_QETH_QUERY_OAT: | |
5892 | rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data); | |
5893 | break; | |
5894 | default: | |
5895 | if (card->discipline->do_ioctl) | |
5896 | rc = card->discipline->do_ioctl(dev, rq, cmd); | |
5897 | else | |
5898 | rc = -EOPNOTSUPP; | |
5899 | } | |
5900 | if (rc) | |
5901 | QETH_CARD_TEXT_(card, 2, "ioce%x", rc); | |
5902 | return rc; | |
5903 | } | |
5904 | EXPORT_SYMBOL_GPL(qeth_do_ioctl); | |
5905 | ||
4a71df50 FB |
5906 | static struct { |
5907 | const char str[ETH_GSTRING_LEN]; | |
5908 | } qeth_ethtool_stats_keys[] = { | |
5909 | /* 0 */{"rx skbs"}, | |
5910 | {"rx buffers"}, | |
5911 | {"tx skbs"}, | |
5912 | {"tx buffers"}, | |
5913 | {"tx skbs no packing"}, | |
5914 | {"tx buffers no packing"}, | |
5915 | {"tx skbs packing"}, | |
5916 | {"tx buffers packing"}, | |
5917 | {"tx sg skbs"}, | |
5918 | {"tx sg frags"}, | |
5919 | /* 10 */{"rx sg skbs"}, | |
5920 | {"rx sg frags"}, | |
5921 | {"rx sg page allocs"}, | |
5922 | {"tx large kbytes"}, | |
5923 | {"tx large count"}, | |
5924 | {"tx pk state ch n->p"}, | |
5925 | {"tx pk state ch p->n"}, | |
5926 | {"tx pk watermark low"}, | |
5927 | {"tx pk watermark high"}, | |
5928 | {"queue 0 buffer usage"}, | |
5929 | /* 20 */{"queue 1 buffer usage"}, | |
5930 | {"queue 2 buffer usage"}, | |
5931 | {"queue 3 buffer usage"}, | |
a1c3ed4c FB |
5932 | {"rx poll time"}, |
5933 | {"rx poll count"}, | |
4a71df50 FB |
5934 | {"rx do_QDIO time"}, |
5935 | {"rx do_QDIO count"}, | |
5936 | {"tx handler time"}, | |
5937 | {"tx handler count"}, | |
5938 | {"tx time"}, | |
5939 | /* 30 */{"tx count"}, | |
5940 | {"tx do_QDIO time"}, | |
5941 | {"tx do_QDIO count"}, | |
f61a0d05 | 5942 | {"tx csum"}, |
c3b4a740 | 5943 | {"tx lin"}, |
6059c905 | 5944 | {"tx linfail"}, |
0da9581d EL |
5945 | {"cq handler count"}, |
5946 | {"cq handler time"} | |
4a71df50 FB |
5947 | }; |
5948 | ||
df8b4ec8 | 5949 | int qeth_core_get_sset_count(struct net_device *dev, int stringset) |
4a71df50 | 5950 | { |
df8b4ec8 BH |
5951 | switch (stringset) { |
5952 | case ETH_SS_STATS: | |
5953 | return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN); | |
5954 | default: | |
5955 | return -EINVAL; | |
5956 | } | |
4a71df50 | 5957 | } |
df8b4ec8 | 5958 | EXPORT_SYMBOL_GPL(qeth_core_get_sset_count); |
4a71df50 FB |
5959 | |
5960 | void qeth_core_get_ethtool_stats(struct net_device *dev, | |
5961 | struct ethtool_stats *stats, u64 *data) | |
5962 | { | |
509e2562 | 5963 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
5964 | data[0] = card->stats.rx_packets - |
5965 | card->perf_stats.initial_rx_packets; | |
5966 | data[1] = card->perf_stats.bufs_rec; | |
5967 | data[2] = card->stats.tx_packets - | |
5968 | card->perf_stats.initial_tx_packets; | |
5969 | data[3] = card->perf_stats.bufs_sent; | |
5970 | data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets | |
5971 | - card->perf_stats.skbs_sent_pack; | |
5972 | data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack; | |
5973 | data[6] = card->perf_stats.skbs_sent_pack; | |
5974 | data[7] = card->perf_stats.bufs_sent_pack; | |
5975 | data[8] = card->perf_stats.sg_skbs_sent; | |
5976 | data[9] = card->perf_stats.sg_frags_sent; | |
5977 | data[10] = card->perf_stats.sg_skbs_rx; | |
5978 | data[11] = card->perf_stats.sg_frags_rx; | |
5979 | data[12] = card->perf_stats.sg_alloc_page_rx; | |
5980 | data[13] = (card->perf_stats.large_send_bytes >> 10); | |
5981 | data[14] = card->perf_stats.large_send_cnt; | |
5982 | data[15] = card->perf_stats.sc_dp_p; | |
5983 | data[16] = card->perf_stats.sc_p_dp; | |
5984 | data[17] = QETH_LOW_WATERMARK_PACK; | |
5985 | data[18] = QETH_HIGH_WATERMARK_PACK; | |
5986 | data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers); | |
5987 | data[20] = (card->qdio.no_out_queues > 1) ? | |
5988 | atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0; | |
5989 | data[21] = (card->qdio.no_out_queues > 2) ? | |
5990 | atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0; | |
5991 | data[22] = (card->qdio.no_out_queues > 3) ? | |
5992 | atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0; | |
5993 | data[23] = card->perf_stats.inbound_time; | |
5994 | data[24] = card->perf_stats.inbound_cnt; | |
5995 | data[25] = card->perf_stats.inbound_do_qdio_time; | |
5996 | data[26] = card->perf_stats.inbound_do_qdio_cnt; | |
5997 | data[27] = card->perf_stats.outbound_handler_time; | |
5998 | data[28] = card->perf_stats.outbound_handler_cnt; | |
5999 | data[29] = card->perf_stats.outbound_time; | |
6000 | data[30] = card->perf_stats.outbound_cnt; | |
6001 | data[31] = card->perf_stats.outbound_do_qdio_time; | |
6002 | data[32] = card->perf_stats.outbound_do_qdio_cnt; | |
f61a0d05 | 6003 | data[33] = card->perf_stats.tx_csum; |
c3b4a740 | 6004 | data[34] = card->perf_stats.tx_lin; |
6059c905 EC |
6005 | data[35] = card->perf_stats.tx_linfail; |
6006 | data[36] = card->perf_stats.cq_cnt; | |
6007 | data[37] = card->perf_stats.cq_time; | |
4a71df50 FB |
6008 | } |
6009 | EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats); | |
6010 | ||
6011 | void qeth_core_get_strings(struct net_device *dev, u32 stringset, u8 *data) | |
6012 | { | |
6013 | switch (stringset) { | |
6014 | case ETH_SS_STATS: | |
6015 | memcpy(data, &qeth_ethtool_stats_keys, | |
6016 | sizeof(qeth_ethtool_stats_keys)); | |
6017 | break; | |
6018 | default: | |
6019 | WARN_ON(1); | |
6020 | break; | |
6021 | } | |
6022 | } | |
6023 | EXPORT_SYMBOL_GPL(qeth_core_get_strings); | |
6024 | ||
6025 | void qeth_core_get_drvinfo(struct net_device *dev, | |
6026 | struct ethtool_drvinfo *info) | |
6027 | { | |
509e2562 | 6028 | struct qeth_card *card = dev->ml_priv; |
7826d43f JP |
6029 | |
6030 | strlcpy(info->driver, card->options.layer2 ? "qeth_l2" : "qeth_l3", | |
6031 | sizeof(info->driver)); | |
6032 | strlcpy(info->version, "1.0", sizeof(info->version)); | |
6033 | strlcpy(info->fw_version, card->info.mcl_level, | |
6034 | sizeof(info->fw_version)); | |
6035 | snprintf(info->bus_info, sizeof(info->bus_info), "%s/%s/%s", | |
6036 | CARD_RDEV_ID(card), CARD_WDEV_ID(card), CARD_DDEV_ID(card)); | |
4a71df50 FB |
6037 | } |
6038 | EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo); | |
6039 | ||
774afb8e JW |
6040 | /* Helper function to fill 'advertising' and 'supported' which are the same. */ |
6041 | /* Autoneg and full-duplex are supported and advertised unconditionally. */ | |
6042 | /* Always advertise and support all speeds up to specified, and only one */ | |
02d5cb5b | 6043 | /* specified port type. */ |
993e19c0 | 6044 | static void qeth_set_cmd_adv_sup(struct ethtool_link_ksettings *cmd, |
02d5cb5b EC |
6045 | int maxspeed, int porttype) |
6046 | { | |
41fc3b65 JW |
6047 | ethtool_link_ksettings_zero_link_mode(cmd, supported); |
6048 | ethtool_link_ksettings_zero_link_mode(cmd, advertising); | |
6049 | ethtool_link_ksettings_zero_link_mode(cmd, lp_advertising); | |
774afb8e | 6050 | |
41fc3b65 JW |
6051 | ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); |
6052 | ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg); | |
02d5cb5b EC |
6053 | |
6054 | switch (porttype) { | |
6055 | case PORT_TP: | |
41fc3b65 JW |
6056 | ethtool_link_ksettings_add_link_mode(cmd, supported, TP); |
6057 | ethtool_link_ksettings_add_link_mode(cmd, advertising, TP); | |
02d5cb5b EC |
6058 | break; |
6059 | case PORT_FIBRE: | |
41fc3b65 JW |
6060 | ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE); |
6061 | ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE); | |
02d5cb5b EC |
6062 | break; |
6063 | default: | |
41fc3b65 JW |
6064 | ethtool_link_ksettings_add_link_mode(cmd, supported, TP); |
6065 | ethtool_link_ksettings_add_link_mode(cmd, advertising, TP); | |
02d5cb5b EC |
6066 | WARN_ON_ONCE(1); |
6067 | } | |
6068 | ||
774afb8e | 6069 | /* fallthrough from high to low, to select all legal speeds: */ |
02d5cb5b EC |
6070 | switch (maxspeed) { |
6071 | case SPEED_10000: | |
41fc3b65 JW |
6072 | ethtool_link_ksettings_add_link_mode(cmd, supported, |
6073 | 10000baseT_Full); | |
6074 | ethtool_link_ksettings_add_link_mode(cmd, advertising, | |
6075 | 10000baseT_Full); | |
02d5cb5b | 6076 | case SPEED_1000: |
41fc3b65 JW |
6077 | ethtool_link_ksettings_add_link_mode(cmd, supported, |
6078 | 1000baseT_Full); | |
6079 | ethtool_link_ksettings_add_link_mode(cmd, advertising, | |
6080 | 1000baseT_Full); | |
6081 | ethtool_link_ksettings_add_link_mode(cmd, supported, | |
6082 | 1000baseT_Half); | |
6083 | ethtool_link_ksettings_add_link_mode(cmd, advertising, | |
6084 | 1000baseT_Half); | |
02d5cb5b | 6085 | case SPEED_100: |
41fc3b65 JW |
6086 | ethtool_link_ksettings_add_link_mode(cmd, supported, |
6087 | 100baseT_Full); | |
6088 | ethtool_link_ksettings_add_link_mode(cmd, advertising, | |
6089 | 100baseT_Full); | |
6090 | ethtool_link_ksettings_add_link_mode(cmd, supported, | |
6091 | 100baseT_Half); | |
6092 | ethtool_link_ksettings_add_link_mode(cmd, advertising, | |
6093 | 100baseT_Half); | |
02d5cb5b | 6094 | case SPEED_10: |
41fc3b65 JW |
6095 | ethtool_link_ksettings_add_link_mode(cmd, supported, |
6096 | 10baseT_Full); | |
6097 | ethtool_link_ksettings_add_link_mode(cmd, advertising, | |
6098 | 10baseT_Full); | |
6099 | ethtool_link_ksettings_add_link_mode(cmd, supported, | |
6100 | 10baseT_Half); | |
6101 | ethtool_link_ksettings_add_link_mode(cmd, advertising, | |
6102 | 10baseT_Half); | |
774afb8e JW |
6103 | /* end fallthrough */ |
6104 | break; | |
02d5cb5b | 6105 | default: |
41fc3b65 JW |
6106 | ethtool_link_ksettings_add_link_mode(cmd, supported, |
6107 | 10baseT_Full); | |
6108 | ethtool_link_ksettings_add_link_mode(cmd, advertising, | |
6109 | 10baseT_Full); | |
6110 | ethtool_link_ksettings_add_link_mode(cmd, supported, | |
6111 | 10baseT_Half); | |
6112 | ethtool_link_ksettings_add_link_mode(cmd, advertising, | |
6113 | 10baseT_Half); | |
02d5cb5b EC |
6114 | WARN_ON_ONCE(1); |
6115 | } | |
02d5cb5b EC |
6116 | } |
6117 | ||
993e19c0 JW |
6118 | int qeth_core_ethtool_get_link_ksettings(struct net_device *netdev, |
6119 | struct ethtool_link_ksettings *cmd) | |
3f9975aa | 6120 | { |
509e2562 | 6121 | struct qeth_card *card = netdev->ml_priv; |
3f9975aa | 6122 | enum qeth_link_types link_type; |
02d5cb5b | 6123 | struct carrier_info carrier_info; |
511c2445 | 6124 | int rc; |
3f9975aa FB |
6125 | |
6126 | if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan)) | |
6127 | link_type = QETH_LINK_TYPE_10GBIT_ETH; | |
6128 | else | |
6129 | link_type = card->info.link_type; | |
6130 | ||
993e19c0 JW |
6131 | cmd->base.duplex = DUPLEX_FULL; |
6132 | cmd->base.autoneg = AUTONEG_ENABLE; | |
6133 | cmd->base.phy_address = 0; | |
6134 | cmd->base.mdio_support = 0; | |
6135 | cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID; | |
6136 | cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_INVALID; | |
3f9975aa FB |
6137 | |
6138 | switch (link_type) { | |
6139 | case QETH_LINK_TYPE_FAST_ETH: | |
6140 | case QETH_LINK_TYPE_LANE_ETH100: | |
993e19c0 JW |
6141 | cmd->base.speed = SPEED_100; |
6142 | cmd->base.port = PORT_TP; | |
3f9975aa | 6143 | break; |
3f9975aa FB |
6144 | case QETH_LINK_TYPE_GBIT_ETH: |
6145 | case QETH_LINK_TYPE_LANE_ETH1000: | |
993e19c0 JW |
6146 | cmd->base.speed = SPEED_1000; |
6147 | cmd->base.port = PORT_FIBRE; | |
3f9975aa | 6148 | break; |
3f9975aa | 6149 | case QETH_LINK_TYPE_10GBIT_ETH: |
993e19c0 JW |
6150 | cmd->base.speed = SPEED_10000; |
6151 | cmd->base.port = PORT_FIBRE; | |
3f9975aa | 6152 | break; |
3f9975aa | 6153 | default: |
993e19c0 JW |
6154 | cmd->base.speed = SPEED_10; |
6155 | cmd->base.port = PORT_TP; | |
3f9975aa | 6156 | } |
993e19c0 | 6157 | qeth_set_cmd_adv_sup(cmd, cmd->base.speed, cmd->base.port); |
3f9975aa | 6158 | |
02d5cb5b EC |
6159 | /* Check if we can obtain more accurate information. */ |
6160 | /* If QUERY_CARD_INFO command is not supported or fails, */ | |
6161 | /* just return the heuristics that was filled above. */ | |
511c2445 EC |
6162 | if (!qeth_card_hw_is_reachable(card)) |
6163 | return -ENODEV; | |
6164 | rc = qeth_query_card_info(card, &carrier_info); | |
6165 | if (rc == -EOPNOTSUPP) /* for old hardware, return heuristic */ | |
02d5cb5b | 6166 | return 0; |
511c2445 EC |
6167 | if (rc) /* report error from the hardware operation */ |
6168 | return rc; | |
6169 | /* on success, fill in the information got from the hardware */ | |
02d5cb5b EC |
6170 | |
6171 | netdev_dbg(netdev, | |
6172 | "card info: card_type=0x%02x, port_mode=0x%04x, port_speed=0x%08x\n", | |
6173 | carrier_info.card_type, | |
6174 | carrier_info.port_mode, | |
6175 | carrier_info.port_speed); | |
6176 | ||
6177 | /* Update attributes for which we've obtained more authoritative */ | |
6178 | /* information, leave the rest the way they where filled above. */ | |
6179 | switch (carrier_info.card_type) { | |
6180 | case CARD_INFO_TYPE_1G_COPPER_A: | |
6181 | case CARD_INFO_TYPE_1G_COPPER_B: | |
993e19c0 JW |
6182 | cmd->base.port = PORT_TP; |
6183 | qeth_set_cmd_adv_sup(cmd, SPEED_1000, cmd->base.port); | |
02d5cb5b EC |
6184 | break; |
6185 | case CARD_INFO_TYPE_1G_FIBRE_A: | |
6186 | case CARD_INFO_TYPE_1G_FIBRE_B: | |
993e19c0 JW |
6187 | cmd->base.port = PORT_FIBRE; |
6188 | qeth_set_cmd_adv_sup(cmd, SPEED_1000, cmd->base.port); | |
02d5cb5b EC |
6189 | break; |
6190 | case CARD_INFO_TYPE_10G_FIBRE_A: | |
6191 | case CARD_INFO_TYPE_10G_FIBRE_B: | |
993e19c0 JW |
6192 | cmd->base.port = PORT_FIBRE; |
6193 | qeth_set_cmd_adv_sup(cmd, SPEED_10000, cmd->base.port); | |
02d5cb5b EC |
6194 | break; |
6195 | } | |
6196 | ||
6197 | switch (carrier_info.port_mode) { | |
6198 | case CARD_INFO_PORTM_FULLDUPLEX: | |
993e19c0 | 6199 | cmd->base.duplex = DUPLEX_FULL; |
02d5cb5b EC |
6200 | break; |
6201 | case CARD_INFO_PORTM_HALFDUPLEX: | |
993e19c0 | 6202 | cmd->base.duplex = DUPLEX_HALF; |
02d5cb5b EC |
6203 | break; |
6204 | } | |
6205 | ||
6206 | switch (carrier_info.port_speed) { | |
6207 | case CARD_INFO_PORTS_10M: | |
993e19c0 | 6208 | cmd->base.speed = SPEED_10; |
02d5cb5b EC |
6209 | break; |
6210 | case CARD_INFO_PORTS_100M: | |
993e19c0 | 6211 | cmd->base.speed = SPEED_100; |
02d5cb5b EC |
6212 | break; |
6213 | case CARD_INFO_PORTS_1G: | |
993e19c0 | 6214 | cmd->base.speed = SPEED_1000; |
02d5cb5b EC |
6215 | break; |
6216 | case CARD_INFO_PORTS_10G: | |
993e19c0 | 6217 | cmd->base.speed = SPEED_10000; |
02d5cb5b EC |
6218 | break; |
6219 | } | |
6220 | ||
3f9975aa FB |
6221 | return 0; |
6222 | } | |
993e19c0 | 6223 | EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_link_ksettings); |
3f9975aa | 6224 | |
c9475369 TR |
6225 | /* Callback to handle checksum offload command reply from OSA card. |
6226 | * Verify that required features have been enabled on the card. | |
6227 | * Return error in hdr->return_code as this value is checked by caller. | |
6228 | * | |
6229 | * Always returns zero to indicate no further messages from the OSA card. | |
6230 | */ | |
6231 | static int qeth_ipa_checksum_run_cmd_cb(struct qeth_card *card, | |
6232 | struct qeth_reply *reply, | |
6233 | unsigned long data) | |
6234 | { | |
6235 | struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; | |
6236 | struct qeth_checksum_cmd *chksum_cb = | |
6237 | (struct qeth_checksum_cmd *)reply->param; | |
6238 | ||
6239 | QETH_CARD_TEXT(card, 4, "chkdoccb"); | |
6240 | if (cmd->hdr.return_code) | |
6241 | return 0; | |
6242 | ||
6243 | memset(chksum_cb, 0, sizeof(*chksum_cb)); | |
6244 | if (cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) { | |
6245 | chksum_cb->supported = | |
6246 | cmd->data.setassparms.data.chksum.supported; | |
6247 | QETH_CARD_TEXT_(card, 3, "strt:%x", chksum_cb->supported); | |
6248 | } | |
6249 | if (cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_ENABLE) { | |
6250 | chksum_cb->supported = | |
6251 | cmd->data.setassparms.data.chksum.supported; | |
6252 | chksum_cb->enabled = | |
6253 | cmd->data.setassparms.data.chksum.enabled; | |
6254 | QETH_CARD_TEXT_(card, 3, "supp:%x", chksum_cb->supported); | |
6255 | QETH_CARD_TEXT_(card, 3, "enab:%x", chksum_cb->enabled); | |
6256 | } | |
6257 | return 0; | |
6258 | } | |
6259 | ||
6260 | /* Send command to OSA card and check results. */ | |
6261 | static int qeth_ipa_checksum_run_cmd(struct qeth_card *card, | |
6262 | enum qeth_ipa_funcs ipa_func, | |
6263 | __u16 cmd_code, long data, | |
6264 | struct qeth_checksum_cmd *chksum_cb) | |
6265 | { | |
6266 | struct qeth_cmd_buffer *iob; | |
6267 | int rc = -ENOMEM; | |
6268 | ||
6269 | QETH_CARD_TEXT(card, 4, "chkdocmd"); | |
6270 | iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code, | |
6271 | sizeof(__u32), QETH_PROT_IPV4); | |
6272 | if (iob) | |
6273 | rc = qeth_send_setassparms(card, iob, sizeof(__u32), data, | |
6274 | qeth_ipa_checksum_run_cmd_cb, | |
6275 | chksum_cb); | |
6276 | return rc; | |
6277 | } | |
6278 | ||
8f43fb00 | 6279 | static int qeth_send_checksum_on(struct qeth_card *card, int cstype) |
4d7def2a | 6280 | { |
f9d8e6dc TR |
6281 | const __u32 required_features = QETH_IPA_CHECKSUM_IP_HDR | |
6282 | QETH_IPA_CHECKSUM_UDP | | |
6283 | QETH_IPA_CHECKSUM_TCP; | |
c9475369 | 6284 | struct qeth_checksum_cmd chksum_cb; |
4d7def2a TR |
6285 | int rc; |
6286 | ||
c9475369 TR |
6287 | rc = qeth_ipa_checksum_run_cmd(card, cstype, IPA_CMD_ASS_START, 0, |
6288 | &chksum_cb); | |
f9d8e6dc TR |
6289 | if (!rc) { |
6290 | if ((required_features & chksum_cb.supported) != | |
6291 | required_features) | |
6292 | rc = -EIO; | |
dae84c8e TR |
6293 | else if (!(QETH_IPA_CHECKSUM_LP2LP & chksum_cb.supported) && |
6294 | cstype == IPA_INBOUND_CHECKSUM) | |
6295 | dev_warn(&card->gdev->dev, | |
6296 | "Hardware checksumming is performed only if %s and its peer use different OSA Express 3 ports\n", | |
6297 | QETH_CARD_IFNAME(card)); | |
f9d8e6dc | 6298 | } |
4d7def2a | 6299 | if (rc) { |
c9475369 | 6300 | qeth_send_simple_setassparms(card, cstype, IPA_CMD_ASS_STOP, 0); |
8f43fb00 TR |
6301 | dev_warn(&card->gdev->dev, |
6302 | "Starting HW checksumming for %s failed, using SW checksumming\n", | |
6303 | QETH_CARD_IFNAME(card)); | |
4d7def2a TR |
6304 | return rc; |
6305 | } | |
c9475369 TR |
6306 | rc = qeth_ipa_checksum_run_cmd(card, cstype, IPA_CMD_ASS_ENABLE, |
6307 | chksum_cb.supported, &chksum_cb); | |
f9d8e6dc TR |
6308 | if (!rc) { |
6309 | if ((required_features & chksum_cb.enabled) != | |
6310 | required_features) | |
6311 | rc = -EIO; | |
6312 | } | |
4d7def2a | 6313 | if (rc) { |
c9475369 | 6314 | qeth_send_simple_setassparms(card, cstype, IPA_CMD_ASS_STOP, 0); |
8f43fb00 TR |
6315 | dev_warn(&card->gdev->dev, |
6316 | "Enabling HW checksumming for %s failed, using SW checksumming\n", | |
6317 | QETH_CARD_IFNAME(card)); | |
4d7def2a TR |
6318 | return rc; |
6319 | } | |
8f43fb00 TR |
6320 | |
6321 | dev_info(&card->gdev->dev, "HW Checksumming (%sbound) enabled\n", | |
6322 | cstype == IPA_INBOUND_CHECKSUM ? "in" : "out"); | |
4d7def2a TR |
6323 | return 0; |
6324 | } | |
6325 | ||
8f43fb00 | 6326 | static int qeth_set_ipa_csum(struct qeth_card *card, int on, int cstype) |
4d7def2a | 6327 | { |
c9475369 TR |
6328 | int rc = (on) ? qeth_send_checksum_on(card, cstype) |
6329 | : qeth_send_simple_setassparms(card, cstype, | |
6330 | IPA_CMD_ASS_STOP, 0); | |
6331 | return rc ? -EIO : 0; | |
4d7def2a | 6332 | } |
4d7def2a | 6333 | |
8f43fb00 | 6334 | static int qeth_set_ipa_tso(struct qeth_card *card, int on) |
4d7def2a | 6335 | { |
8f43fb00 | 6336 | int rc; |
4d7def2a | 6337 | |
8f43fb00 | 6338 | QETH_CARD_TEXT(card, 3, "sttso"); |
4d7def2a | 6339 | |
8f43fb00 TR |
6340 | if (on) { |
6341 | rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO, | |
6342 | IPA_CMD_ASS_START, 0); | |
6343 | if (rc) { | |
6344 | dev_warn(&card->gdev->dev, | |
6345 | "Starting outbound TCP segmentation offload for %s failed\n", | |
6346 | QETH_CARD_IFNAME(card)); | |
6347 | return -EIO; | |
6348 | } | |
6349 | dev_info(&card->gdev->dev, "Outbound TSO enabled\n"); | |
6350 | } else { | |
6351 | rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO, | |
6352 | IPA_CMD_ASS_STOP, 0); | |
6353 | } | |
4d7def2a TR |
6354 | return rc; |
6355 | } | |
8f43fb00 | 6356 | |
ce344356 JW |
6357 | #define QETH_HW_FEATURES (NETIF_F_RXCSUM | NETIF_F_IP_CSUM | NETIF_F_TSO) |
6358 | ||
6359 | /** | |
6360 | * qeth_recover_features() - Restore device features after recovery | |
6361 | * @dev: the recovering net_device | |
6362 | * | |
6363 | * Caller must hold rtnl lock. | |
6364 | */ | |
6365 | void qeth_recover_features(struct net_device *dev) | |
e830baa9 | 6366 | { |
ce344356 | 6367 | netdev_features_t features = dev->features; |
e830baa9 | 6368 | struct qeth_card *card = dev->ml_priv; |
e830baa9 | 6369 | |
ce344356 JW |
6370 | /* force-off any feature that needs an IPA sequence. |
6371 | * netdev_update_features() will restart them. | |
6372 | */ | |
6373 | dev->features &= ~QETH_HW_FEATURES; | |
6374 | netdev_update_features(dev); | |
e830baa9 | 6375 | |
ce344356 JW |
6376 | if (features == dev->features) |
6377 | return; | |
e830baa9 HW |
6378 | dev_warn(&card->gdev->dev, |
6379 | "Device recovery failed to restore all offload features\n"); | |
e830baa9 HW |
6380 | } |
6381 | EXPORT_SYMBOL_GPL(qeth_recover_features); | |
6382 | ||
8f43fb00 TR |
6383 | int qeth_set_features(struct net_device *dev, netdev_features_t features) |
6384 | { | |
6385 | struct qeth_card *card = dev->ml_priv; | |
6c7cd712 | 6386 | netdev_features_t changed = dev->features ^ features; |
8f43fb00 TR |
6387 | int rc = 0; |
6388 | ||
6389 | QETH_DBF_TEXT(SETUP, 2, "setfeat"); | |
6390 | QETH_DBF_HEX(SETUP, 2, &features, sizeof(features)); | |
6391 | ||
6c7cd712 | 6392 | if ((changed & NETIF_F_IP_CSUM)) { |
8f43fb00 TR |
6393 | rc = qeth_set_ipa_csum(card, |
6394 | features & NETIF_F_IP_CSUM ? 1 : 0, | |
6395 | IPA_OUTBOUND_CHECKSUM); | |
6c7cd712 HW |
6396 | if (rc) |
6397 | changed ^= NETIF_F_IP_CSUM; | |
6398 | } | |
6399 | if ((changed & NETIF_F_RXCSUM)) { | |
6400 | rc = qeth_set_ipa_csum(card, | |
8f43fb00 TR |
6401 | features & NETIF_F_RXCSUM ? 1 : 0, |
6402 | IPA_INBOUND_CHECKSUM); | |
6c7cd712 HW |
6403 | if (rc) |
6404 | changed ^= NETIF_F_RXCSUM; | |
6405 | } | |
6406 | if ((changed & NETIF_F_TSO)) { | |
6407 | rc = qeth_set_ipa_tso(card, features & NETIF_F_TSO ? 1 : 0); | |
6408 | if (rc) | |
6409 | changed ^= NETIF_F_TSO; | |
6410 | } | |
6411 | ||
6412 | /* everything changed successfully? */ | |
6413 | if ((dev->features ^ features) == changed) | |
6414 | return 0; | |
6415 | /* something went wrong. save changed features and return error */ | |
6416 | dev->features ^= changed; | |
6417 | return -EIO; | |
8f43fb00 TR |
6418 | } |
6419 | EXPORT_SYMBOL_GPL(qeth_set_features); | |
6420 | ||
6421 | netdev_features_t qeth_fix_features(struct net_device *dev, | |
6422 | netdev_features_t features) | |
6423 | { | |
6424 | struct qeth_card *card = dev->ml_priv; | |
6425 | ||
6426 | QETH_DBF_TEXT(SETUP, 2, "fixfeat"); | |
6427 | if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) | |
6428 | features &= ~NETIF_F_IP_CSUM; | |
6429 | if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) | |
6430 | features &= ~NETIF_F_RXCSUM; | |
cf536ffe | 6431 | if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) |
8f43fb00 | 6432 | features &= ~NETIF_F_TSO; |
6c7cd712 HW |
6433 | /* if the card isn't up, remove features that require hw changes */ |
6434 | if (card->state == CARD_STATE_DOWN || | |
6435 | card->state == CARD_STATE_RECOVER) | |
ce344356 | 6436 | features &= ~QETH_HW_FEATURES; |
8f43fb00 TR |
6437 | QETH_DBF_HEX(SETUP, 2, &features, sizeof(features)); |
6438 | return features; | |
6439 | } | |
6440 | EXPORT_SYMBOL_GPL(qeth_fix_features); | |
4d7def2a | 6441 | |
4a71df50 FB |
6442 | static int __init qeth_core_init(void) |
6443 | { | |
6444 | int rc; | |
6445 | ||
74eacdb9 | 6446 | pr_info("loading core functions\n"); |
4a71df50 | 6447 | INIT_LIST_HEAD(&qeth_core_card_list.list); |
819dc537 | 6448 | INIT_LIST_HEAD(&qeth_dbf_list); |
4a71df50 | 6449 | rwlock_init(&qeth_core_card_list.rwlock); |
2022e00c | 6450 | mutex_init(&qeth_mod_mutex); |
4a71df50 | 6451 | |
0f54761d SR |
6452 | qeth_wq = create_singlethread_workqueue("qeth_wq"); |
6453 | ||
4a71df50 FB |
6454 | rc = qeth_register_dbf_views(); |
6455 | if (rc) | |
6456 | goto out_err; | |
035da16f | 6457 | qeth_core_root_dev = root_device_register("qeth"); |
9262c6c2 | 6458 | rc = PTR_ERR_OR_ZERO(qeth_core_root_dev); |
4a71df50 FB |
6459 | if (rc) |
6460 | goto register_err; | |
683d718a FB |
6461 | qeth_core_header_cache = kmem_cache_create("qeth_hdr", |
6462 | sizeof(struct qeth_hdr) + ETH_HLEN, 64, 0, NULL); | |
6463 | if (!qeth_core_header_cache) { | |
6464 | rc = -ENOMEM; | |
6465 | goto slab_err; | |
6466 | } | |
0da9581d EL |
6467 | qeth_qdio_outbuf_cache = kmem_cache_create("qeth_buf", |
6468 | sizeof(struct qeth_qdio_out_buffer), 0, 0, NULL); | |
6469 | if (!qeth_qdio_outbuf_cache) { | |
6470 | rc = -ENOMEM; | |
6471 | goto cqslab_err; | |
6472 | } | |
afb6ac59 SO |
6473 | rc = ccw_driver_register(&qeth_ccw_driver); |
6474 | if (rc) | |
6475 | goto ccw_err; | |
6476 | qeth_core_ccwgroup_driver.driver.groups = qeth_drv_attr_groups; | |
6477 | rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver); | |
6478 | if (rc) | |
6479 | goto ccwgroup_err; | |
0da9581d | 6480 | |
683d718a | 6481 | return 0; |
afb6ac59 SO |
6482 | |
6483 | ccwgroup_err: | |
6484 | ccw_driver_unregister(&qeth_ccw_driver); | |
6485 | ccw_err: | |
6486 | kmem_cache_destroy(qeth_qdio_outbuf_cache); | |
0da9581d EL |
6487 | cqslab_err: |
6488 | kmem_cache_destroy(qeth_core_header_cache); | |
683d718a | 6489 | slab_err: |
035da16f | 6490 | root_device_unregister(qeth_core_root_dev); |
4a71df50 | 6491 | register_err: |
4a71df50 FB |
6492 | qeth_unregister_dbf_views(); |
6493 | out_err: | |
74eacdb9 | 6494 | pr_err("Initializing the qeth device driver failed\n"); |
4a71df50 FB |
6495 | return rc; |
6496 | } | |
6497 | ||
6498 | static void __exit qeth_core_exit(void) | |
6499 | { | |
819dc537 | 6500 | qeth_clear_dbf_list(); |
0f54761d | 6501 | destroy_workqueue(qeth_wq); |
4a71df50 FB |
6502 | ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver); |
6503 | ccw_driver_unregister(&qeth_ccw_driver); | |
0da9581d | 6504 | kmem_cache_destroy(qeth_qdio_outbuf_cache); |
683d718a | 6505 | kmem_cache_destroy(qeth_core_header_cache); |
afb6ac59 | 6506 | root_device_unregister(qeth_core_root_dev); |
4a71df50 | 6507 | qeth_unregister_dbf_views(); |
74eacdb9 | 6508 | pr_info("core functions removed\n"); |
4a71df50 FB |
6509 | } |
6510 | ||
6511 | module_init(qeth_core_init); | |
6512 | module_exit(qeth_core_exit); | |
6513 | MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); | |
6514 | MODULE_DESCRIPTION("qeth core functions"); | |
6515 | MODULE_LICENSE("GPL"); |