Commit | Line | Data |
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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 | ||
0d55303c | 13 | #include <linux/compat.h> |
4a71df50 FB |
14 | #include <linux/module.h> |
15 | #include <linux/moduleparam.h> | |
16 | #include <linux/string.h> | |
17 | #include <linux/errno.h> | |
18 | #include <linux/kernel.h> | |
19 | #include <linux/ip.h> | |
4a71df50 FB |
20 | #include <linux/tcp.h> |
21 | #include <linux/mii.h> | |
22 | #include <linux/kthread.h> | |
5a0e3ad6 | 23 | #include <linux/slab.h> |
6d69b1f1 JW |
24 | #include <linux/if_vlan.h> |
25 | #include <linux/netdevice.h> | |
26 | #include <linux/netdev_features.h> | |
27 | #include <linux/skbuff.h> | |
aec45e85 | 28 | #include <linux/vmalloc.h> |
6d69b1f1 | 29 | |
b3332930 | 30 | #include <net/iucv/af_iucv.h> |
290b8348 | 31 | #include <net/dsfield.h> |
4a71df50 | 32 | |
ab4227cb | 33 | #include <asm/ebcdic.h> |
2bf29df7 | 34 | #include <asm/chpid.h> |
ab4227cb | 35 | #include <asm/io.h> |
1da74b1c | 36 | #include <asm/sysinfo.h> |
ec61bd2f JW |
37 | #include <asm/diag.h> |
38 | #include <asm/cio.h> | |
39 | #include <asm/ccwdev.h> | |
615dff22 | 40 | #include <asm/cpcmd.h> |
4a71df50 FB |
41 | |
42 | #include "qeth_core.h" | |
4a71df50 | 43 | |
d11ba0c4 PT |
44 | struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = { |
45 | /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */ | |
46 | /* N P A M L V H */ | |
47 | [QETH_DBF_SETUP] = {"qeth_setup", | |
48 | 8, 1, 8, 5, &debug_hex_ascii_view, NULL}, | |
f7e1e65d SO |
49 | [QETH_DBF_MSG] = {"qeth_msg", 8, 1, 11 * sizeof(long), 3, |
50 | &debug_sprintf_view, NULL}, | |
d11ba0c4 PT |
51 | [QETH_DBF_CTRL] = {"qeth_control", |
52 | 8, 1, QETH_DBF_CTRL_LEN, 5, &debug_hex_ascii_view, NULL}, | |
53 | }; | |
54 | EXPORT_SYMBOL_GPL(qeth_dbf); | |
4a71df50 FB |
55 | |
56 | struct qeth_card_list_struct qeth_core_card_list; | |
57 | EXPORT_SYMBOL_GPL(qeth_core_card_list); | |
683d718a FB |
58 | struct kmem_cache *qeth_core_header_cache; |
59 | EXPORT_SYMBOL_GPL(qeth_core_header_cache); | |
0da9581d | 60 | static struct kmem_cache *qeth_qdio_outbuf_cache; |
4a71df50 FB |
61 | |
62 | static struct device *qeth_core_root_dev; | |
4a71df50 | 63 | static struct lock_class_key qdio_out_skb_queue_key; |
2022e00c | 64 | static struct mutex qeth_mod_mutex; |
4a71df50 FB |
65 | |
66 | static void qeth_send_control_data_cb(struct qeth_channel *, | |
67 | struct qeth_cmd_buffer *); | |
4a71df50 | 68 | static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *); |
4a71df50 FB |
69 | static void qeth_free_buffer_pool(struct qeth_card *); |
70 | static int qeth_qdio_establish(struct qeth_card *); | |
0da9581d | 71 | static void qeth_free_qdio_buffers(struct qeth_card *); |
b3332930 FB |
72 | static void qeth_notify_skbs(struct qeth_qdio_out_q *queue, |
73 | struct qeth_qdio_out_buffer *buf, | |
74 | enum iucv_tx_notify notification); | |
75 | static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf); | |
72861ae7 | 76 | static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *, int); |
4a71df50 | 77 | |
b4d72c08 | 78 | struct workqueue_struct *qeth_wq; |
c044dc21 | 79 | EXPORT_SYMBOL_GPL(qeth_wq); |
0f54761d | 80 | |
511c2445 EC |
81 | int qeth_card_hw_is_reachable(struct qeth_card *card) |
82 | { | |
83 | return (card->state == CARD_STATE_SOFTSETUP) || | |
84 | (card->state == CARD_STATE_UP); | |
85 | } | |
86 | EXPORT_SYMBOL_GPL(qeth_card_hw_is_reachable); | |
87 | ||
0f54761d SR |
88 | static void qeth_close_dev_handler(struct work_struct *work) |
89 | { | |
90 | struct qeth_card *card; | |
91 | ||
92 | card = container_of(work, struct qeth_card, close_dev_work); | |
93 | QETH_CARD_TEXT(card, 2, "cldevhdl"); | |
94 | rtnl_lock(); | |
95 | dev_close(card->dev); | |
96 | rtnl_unlock(); | |
97 | ccwgroup_set_offline(card->gdev); | |
98 | } | |
99 | ||
100 | void qeth_close_dev(struct qeth_card *card) | |
101 | { | |
102 | QETH_CARD_TEXT(card, 2, "cldevsubm"); | |
103 | queue_work(qeth_wq, &card->close_dev_work); | |
104 | } | |
105 | EXPORT_SYMBOL_GPL(qeth_close_dev); | |
106 | ||
cef6ff22 | 107 | static const char *qeth_get_cardname(struct qeth_card *card) |
4a71df50 FB |
108 | { |
109 | if (card->info.guestlan) { | |
110 | switch (card->info.type) { | |
5113fec0 | 111 | case QETH_CARD_TYPE_OSD: |
7096b187 | 112 | return " Virtual NIC QDIO"; |
4a71df50 | 113 | case QETH_CARD_TYPE_IQD: |
7096b187 | 114 | return " Virtual NIC Hiper"; |
5113fec0 | 115 | case QETH_CARD_TYPE_OSM: |
7096b187 | 116 | return " Virtual NIC QDIO - OSM"; |
5113fec0 | 117 | case QETH_CARD_TYPE_OSX: |
7096b187 | 118 | return " Virtual NIC QDIO - OSX"; |
4a71df50 FB |
119 | default: |
120 | return " unknown"; | |
121 | } | |
122 | } else { | |
123 | switch (card->info.type) { | |
5113fec0 | 124 | case QETH_CARD_TYPE_OSD: |
4a71df50 FB |
125 | return " OSD Express"; |
126 | case QETH_CARD_TYPE_IQD: | |
127 | return " HiperSockets"; | |
128 | case QETH_CARD_TYPE_OSN: | |
129 | return " OSN QDIO"; | |
5113fec0 UB |
130 | case QETH_CARD_TYPE_OSM: |
131 | return " OSM QDIO"; | |
132 | case QETH_CARD_TYPE_OSX: | |
133 | return " OSX QDIO"; | |
4a71df50 FB |
134 | default: |
135 | return " unknown"; | |
136 | } | |
137 | } | |
138 | return " n/a"; | |
139 | } | |
140 | ||
141 | /* max length to be returned: 14 */ | |
142 | const char *qeth_get_cardname_short(struct qeth_card *card) | |
143 | { | |
144 | if (card->info.guestlan) { | |
145 | switch (card->info.type) { | |
5113fec0 | 146 | case QETH_CARD_TYPE_OSD: |
7096b187 | 147 | return "Virt.NIC QDIO"; |
4a71df50 | 148 | case QETH_CARD_TYPE_IQD: |
7096b187 | 149 | return "Virt.NIC Hiper"; |
5113fec0 | 150 | case QETH_CARD_TYPE_OSM: |
7096b187 | 151 | return "Virt.NIC OSM"; |
5113fec0 | 152 | case QETH_CARD_TYPE_OSX: |
7096b187 | 153 | return "Virt.NIC OSX"; |
4a71df50 FB |
154 | default: |
155 | return "unknown"; | |
156 | } | |
157 | } else { | |
158 | switch (card->info.type) { | |
5113fec0 | 159 | case QETH_CARD_TYPE_OSD: |
4a71df50 FB |
160 | switch (card->info.link_type) { |
161 | case QETH_LINK_TYPE_FAST_ETH: | |
162 | return "OSD_100"; | |
163 | case QETH_LINK_TYPE_HSTR: | |
164 | return "HSTR"; | |
165 | case QETH_LINK_TYPE_GBIT_ETH: | |
166 | return "OSD_1000"; | |
167 | case QETH_LINK_TYPE_10GBIT_ETH: | |
168 | return "OSD_10GIG"; | |
169 | case QETH_LINK_TYPE_LANE_ETH100: | |
170 | return "OSD_FE_LANE"; | |
171 | case QETH_LINK_TYPE_LANE_TR: | |
172 | return "OSD_TR_LANE"; | |
173 | case QETH_LINK_TYPE_LANE_ETH1000: | |
174 | return "OSD_GbE_LANE"; | |
175 | case QETH_LINK_TYPE_LANE: | |
176 | return "OSD_ATM_LANE"; | |
177 | default: | |
178 | return "OSD_Express"; | |
179 | } | |
180 | case QETH_CARD_TYPE_IQD: | |
181 | return "HiperSockets"; | |
182 | case QETH_CARD_TYPE_OSN: | |
183 | return "OSN"; | |
5113fec0 UB |
184 | case QETH_CARD_TYPE_OSM: |
185 | return "OSM_1000"; | |
186 | case QETH_CARD_TYPE_OSX: | |
187 | return "OSX_10GIG"; | |
4a71df50 FB |
188 | default: |
189 | return "unknown"; | |
190 | } | |
191 | } | |
192 | return "n/a"; | |
193 | } | |
194 | ||
65d8013c SR |
195 | void qeth_set_recovery_task(struct qeth_card *card) |
196 | { | |
197 | card->recovery_task = current; | |
198 | } | |
199 | EXPORT_SYMBOL_GPL(qeth_set_recovery_task); | |
200 | ||
201 | void qeth_clear_recovery_task(struct qeth_card *card) | |
202 | { | |
203 | card->recovery_task = NULL; | |
204 | } | |
205 | EXPORT_SYMBOL_GPL(qeth_clear_recovery_task); | |
206 | ||
207 | static bool qeth_is_recovery_task(const struct qeth_card *card) | |
208 | { | |
209 | return card->recovery_task == current; | |
210 | } | |
211 | ||
4a71df50 FB |
212 | void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads, |
213 | int clear_start_mask) | |
214 | { | |
215 | unsigned long flags; | |
216 | ||
217 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
218 | card->thread_allowed_mask = threads; | |
219 | if (clear_start_mask) | |
220 | card->thread_start_mask &= threads; | |
221 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
222 | wake_up(&card->wait_q); | |
223 | } | |
224 | EXPORT_SYMBOL_GPL(qeth_set_allowed_threads); | |
225 | ||
226 | int qeth_threads_running(struct qeth_card *card, unsigned long threads) | |
227 | { | |
228 | unsigned long flags; | |
229 | int rc = 0; | |
230 | ||
231 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
232 | rc = (card->thread_running_mask & threads); | |
233 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
234 | return rc; | |
235 | } | |
236 | EXPORT_SYMBOL_GPL(qeth_threads_running); | |
237 | ||
238 | int qeth_wait_for_threads(struct qeth_card *card, unsigned long threads) | |
239 | { | |
65d8013c SR |
240 | if (qeth_is_recovery_task(card)) |
241 | return 0; | |
4a71df50 FB |
242 | return wait_event_interruptible(card->wait_q, |
243 | qeth_threads_running(card, threads) == 0); | |
244 | } | |
245 | EXPORT_SYMBOL_GPL(qeth_wait_for_threads); | |
246 | ||
247 | void qeth_clear_working_pool_list(struct qeth_card *card) | |
248 | { | |
249 | struct qeth_buffer_pool_entry *pool_entry, *tmp; | |
250 | ||
847a50fd | 251 | QETH_CARD_TEXT(card, 5, "clwrklst"); |
4a71df50 FB |
252 | list_for_each_entry_safe(pool_entry, tmp, |
253 | &card->qdio.in_buf_pool.entry_list, list){ | |
254 | list_del(&pool_entry->list); | |
255 | } | |
256 | } | |
257 | EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list); | |
258 | ||
259 | static int qeth_alloc_buffer_pool(struct qeth_card *card) | |
260 | { | |
261 | struct qeth_buffer_pool_entry *pool_entry; | |
262 | void *ptr; | |
263 | int i, j; | |
264 | ||
847a50fd | 265 | QETH_CARD_TEXT(card, 5, "alocpool"); |
4a71df50 | 266 | for (i = 0; i < card->qdio.init_pool.buf_count; ++i) { |
b3332930 | 267 | pool_entry = kzalloc(sizeof(*pool_entry), GFP_KERNEL); |
4a71df50 FB |
268 | if (!pool_entry) { |
269 | qeth_free_buffer_pool(card); | |
270 | return -ENOMEM; | |
271 | } | |
272 | for (j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j) { | |
508b3c4f | 273 | ptr = (void *) __get_free_page(GFP_KERNEL); |
4a71df50 FB |
274 | if (!ptr) { |
275 | while (j > 0) | |
276 | free_page((unsigned long) | |
277 | pool_entry->elements[--j]); | |
278 | kfree(pool_entry); | |
279 | qeth_free_buffer_pool(card); | |
280 | return -ENOMEM; | |
281 | } | |
282 | pool_entry->elements[j] = ptr; | |
283 | } | |
284 | list_add(&pool_entry->init_list, | |
285 | &card->qdio.init_pool.entry_list); | |
286 | } | |
287 | return 0; | |
288 | } | |
289 | ||
290 | int qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt) | |
291 | { | |
847a50fd | 292 | QETH_CARD_TEXT(card, 2, "realcbp"); |
4a71df50 FB |
293 | |
294 | if ((card->state != CARD_STATE_DOWN) && | |
295 | (card->state != CARD_STATE_RECOVER)) | |
296 | return -EPERM; | |
297 | ||
298 | /* TODO: steel/add buffers from/to a running card's buffer pool (?) */ | |
299 | qeth_clear_working_pool_list(card); | |
300 | qeth_free_buffer_pool(card); | |
301 | card->qdio.in_buf_pool.buf_count = bufcnt; | |
302 | card->qdio.init_pool.buf_count = bufcnt; | |
303 | return qeth_alloc_buffer_pool(card); | |
304 | } | |
76b11f8e | 305 | EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool); |
4a71df50 | 306 | |
4601ba6c SO |
307 | static void qeth_free_qdio_queue(struct qeth_qdio_q *q) |
308 | { | |
6d284bde SO |
309 | if (!q) |
310 | return; | |
311 | ||
312 | qdio_free_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q); | |
4601ba6c SO |
313 | kfree(q); |
314 | } | |
315 | ||
316 | static struct qeth_qdio_q *qeth_alloc_qdio_queue(void) | |
317 | { | |
318 | struct qeth_qdio_q *q = kzalloc(sizeof(*q), GFP_KERNEL); | |
319 | int i; | |
320 | ||
321 | if (!q) | |
322 | return NULL; | |
323 | ||
6d284bde SO |
324 | if (qdio_alloc_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q)) { |
325 | kfree(q); | |
326 | return NULL; | |
327 | } | |
328 | ||
4601ba6c | 329 | for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) |
6d284bde | 330 | q->bufs[i].buffer = q->qdio_bufs[i]; |
4601ba6c SO |
331 | |
332 | QETH_DBF_HEX(SETUP, 2, &q, sizeof(void *)); | |
333 | return q; | |
334 | } | |
335 | ||
cef6ff22 | 336 | static int qeth_cq_init(struct qeth_card *card) |
0da9581d EL |
337 | { |
338 | int rc; | |
339 | ||
340 | if (card->options.cq == QETH_CQ_ENABLED) { | |
341 | QETH_DBF_TEXT(SETUP, 2, "cqinit"); | |
6d284bde SO |
342 | qdio_reset_buffers(card->qdio.c_q->qdio_bufs, |
343 | QDIO_MAX_BUFFERS_PER_Q); | |
0da9581d EL |
344 | card->qdio.c_q->next_buf_to_init = 127; |
345 | rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, | |
346 | card->qdio.no_in_queues - 1, 0, | |
347 | 127); | |
348 | if (rc) { | |
349 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); | |
350 | goto out; | |
351 | } | |
352 | } | |
353 | rc = 0; | |
354 | out: | |
355 | return rc; | |
356 | } | |
357 | ||
cef6ff22 | 358 | static int qeth_alloc_cq(struct qeth_card *card) |
0da9581d EL |
359 | { |
360 | int rc; | |
361 | ||
362 | if (card->options.cq == QETH_CQ_ENABLED) { | |
363 | int i; | |
364 | struct qdio_outbuf_state *outbuf_states; | |
365 | ||
366 | QETH_DBF_TEXT(SETUP, 2, "cqon"); | |
4601ba6c | 367 | card->qdio.c_q = qeth_alloc_qdio_queue(); |
0da9581d EL |
368 | if (!card->qdio.c_q) { |
369 | rc = -1; | |
370 | goto kmsg_out; | |
371 | } | |
0da9581d | 372 | card->qdio.no_in_queues = 2; |
4a912f98 | 373 | card->qdio.out_bufstates = |
6396bb22 KC |
374 | kcalloc(card->qdio.no_out_queues * |
375 | QDIO_MAX_BUFFERS_PER_Q, | |
376 | sizeof(struct qdio_outbuf_state), | |
377 | GFP_KERNEL); | |
0da9581d EL |
378 | outbuf_states = card->qdio.out_bufstates; |
379 | if (outbuf_states == NULL) { | |
380 | rc = -1; | |
381 | goto free_cq_out; | |
382 | } | |
383 | for (i = 0; i < card->qdio.no_out_queues; ++i) { | |
384 | card->qdio.out_qs[i]->bufstates = outbuf_states; | |
385 | outbuf_states += QDIO_MAX_BUFFERS_PER_Q; | |
386 | } | |
387 | } else { | |
388 | QETH_DBF_TEXT(SETUP, 2, "nocq"); | |
389 | card->qdio.c_q = NULL; | |
390 | card->qdio.no_in_queues = 1; | |
391 | } | |
392 | QETH_DBF_TEXT_(SETUP, 2, "iqc%d", card->qdio.no_in_queues); | |
393 | rc = 0; | |
394 | out: | |
395 | return rc; | |
396 | free_cq_out: | |
4601ba6c | 397 | qeth_free_qdio_queue(card->qdio.c_q); |
0da9581d EL |
398 | card->qdio.c_q = NULL; |
399 | kmsg_out: | |
400 | dev_err(&card->gdev->dev, "Failed to create completion queue\n"); | |
401 | goto out; | |
402 | } | |
403 | ||
cef6ff22 | 404 | static void qeth_free_cq(struct qeth_card *card) |
0da9581d EL |
405 | { |
406 | if (card->qdio.c_q) { | |
407 | --card->qdio.no_in_queues; | |
4601ba6c | 408 | qeth_free_qdio_queue(card->qdio.c_q); |
0da9581d EL |
409 | card->qdio.c_q = NULL; |
410 | } | |
411 | kfree(card->qdio.out_bufstates); | |
412 | card->qdio.out_bufstates = NULL; | |
413 | } | |
414 | ||
cef6ff22 JW |
415 | static enum iucv_tx_notify qeth_compute_cq_notification(int sbalf15, |
416 | int delayed) | |
417 | { | |
b3332930 FB |
418 | enum iucv_tx_notify n; |
419 | ||
420 | switch (sbalf15) { | |
421 | case 0: | |
422 | n = delayed ? TX_NOTIFY_DELAYED_OK : TX_NOTIFY_OK; | |
423 | break; | |
424 | case 4: | |
425 | case 16: | |
426 | case 17: | |
427 | case 18: | |
428 | n = delayed ? TX_NOTIFY_DELAYED_UNREACHABLE : | |
429 | TX_NOTIFY_UNREACHABLE; | |
430 | break; | |
431 | default: | |
432 | n = delayed ? TX_NOTIFY_DELAYED_GENERALERROR : | |
433 | TX_NOTIFY_GENERALERROR; | |
434 | break; | |
435 | } | |
436 | ||
437 | return n; | |
438 | } | |
439 | ||
cef6ff22 JW |
440 | static void qeth_cleanup_handled_pending(struct qeth_qdio_out_q *q, int bidx, |
441 | int forced_cleanup) | |
0da9581d | 442 | { |
72861ae7 EL |
443 | if (q->card->options.cq != QETH_CQ_ENABLED) |
444 | return; | |
445 | ||
0da9581d EL |
446 | if (q->bufs[bidx]->next_pending != NULL) { |
447 | struct qeth_qdio_out_buffer *head = q->bufs[bidx]; | |
448 | struct qeth_qdio_out_buffer *c = q->bufs[bidx]->next_pending; | |
449 | ||
450 | while (c) { | |
451 | if (forced_cleanup || | |
452 | atomic_read(&c->state) == | |
453 | QETH_QDIO_BUF_HANDLED_DELAYED) { | |
454 | struct qeth_qdio_out_buffer *f = c; | |
455 | QETH_CARD_TEXT(f->q->card, 5, "fp"); | |
456 | QETH_CARD_TEXT_(f->q->card, 5, "%lx", (long) f); | |
b3332930 FB |
457 | /* release here to avoid interleaving between |
458 | outbound tasklet and inbound tasklet | |
459 | regarding notifications and lifecycle */ | |
460 | qeth_release_skbs(c); | |
461 | ||
0da9581d | 462 | c = f->next_pending; |
18af5c17 | 463 | WARN_ON_ONCE(head->next_pending != f); |
0da9581d EL |
464 | head->next_pending = c; |
465 | kmem_cache_free(qeth_qdio_outbuf_cache, f); | |
466 | } else { | |
467 | head = c; | |
468 | c = c->next_pending; | |
469 | } | |
470 | ||
471 | } | |
472 | } | |
72861ae7 EL |
473 | if (forced_cleanup && (atomic_read(&(q->bufs[bidx]->state)) == |
474 | QETH_QDIO_BUF_HANDLED_DELAYED)) { | |
475 | /* for recovery situations */ | |
72861ae7 EL |
476 | qeth_init_qdio_out_buf(q, bidx); |
477 | QETH_CARD_TEXT(q->card, 2, "clprecov"); | |
478 | } | |
0da9581d EL |
479 | } |
480 | ||
481 | ||
cef6ff22 JW |
482 | static void qeth_qdio_handle_aob(struct qeth_card *card, |
483 | unsigned long phys_aob_addr) | |
484 | { | |
0da9581d EL |
485 | struct qaob *aob; |
486 | struct qeth_qdio_out_buffer *buffer; | |
b3332930 | 487 | enum iucv_tx_notify notification; |
ce28867f | 488 | unsigned int i; |
0da9581d EL |
489 | |
490 | aob = (struct qaob *) phys_to_virt(phys_aob_addr); | |
491 | QETH_CARD_TEXT(card, 5, "haob"); | |
492 | QETH_CARD_TEXT_(card, 5, "%lx", phys_aob_addr); | |
493 | buffer = (struct qeth_qdio_out_buffer *) aob->user1; | |
494 | QETH_CARD_TEXT_(card, 5, "%lx", aob->user1); | |
495 | ||
b3332930 FB |
496 | if (atomic_cmpxchg(&buffer->state, QETH_QDIO_BUF_PRIMED, |
497 | QETH_QDIO_BUF_IN_CQ) == QETH_QDIO_BUF_PRIMED) { | |
498 | notification = TX_NOTIFY_OK; | |
499 | } else { | |
18af5c17 SR |
500 | WARN_ON_ONCE(atomic_read(&buffer->state) != |
501 | QETH_QDIO_BUF_PENDING); | |
b3332930 FB |
502 | atomic_set(&buffer->state, QETH_QDIO_BUF_IN_CQ); |
503 | notification = TX_NOTIFY_DELAYED_OK; | |
504 | } | |
505 | ||
506 | if (aob->aorc != 0) { | |
507 | QETH_CARD_TEXT_(card, 2, "aorc%02X", aob->aorc); | |
508 | notification = qeth_compute_cq_notification(aob->aorc, 1); | |
509 | } | |
510 | qeth_notify_skbs(buffer->q, buffer, notification); | |
511 | ||
ce28867f JW |
512 | /* Free dangling allocations. The attached skbs are handled by |
513 | * qeth_cleanup_handled_pending(). | |
514 | */ | |
515 | for (i = 0; | |
516 | i < aob->sb_count && i < QETH_MAX_BUFFER_ELEMENTS(card); | |
517 | i++) { | |
518 | if (aob->sba[i] && buffer->is_header[i]) | |
519 | kmem_cache_free(qeth_core_header_cache, | |
520 | (void *) aob->sba[i]); | |
521 | } | |
522 | atomic_set(&buffer->state, QETH_QDIO_BUF_HANDLED_DELAYED); | |
72861ae7 | 523 | |
0da9581d EL |
524 | qdio_release_aob(aob); |
525 | } | |
526 | ||
527 | static inline int qeth_is_cq(struct qeth_card *card, unsigned int queue) | |
528 | { | |
529 | return card->options.cq == QETH_CQ_ENABLED && | |
530 | card->qdio.c_q != NULL && | |
531 | queue != 0 && | |
532 | queue == card->qdio.no_in_queues - 1; | |
533 | } | |
534 | ||
45ca2fd6 JW |
535 | static void qeth_setup_ccw(struct ccw1 *ccw, u8 cmd_code, u32 len, void *data) |
536 | { | |
537 | ccw->cmd_code = cmd_code; | |
538 | ccw->flags = CCW_FLAG_SLI; | |
539 | ccw->count = len; | |
540 | ccw->cda = (__u32) __pa(data); | |
541 | } | |
542 | ||
17bf8c9b | 543 | static int __qeth_issue_next_read(struct qeth_card *card) |
4a71df50 | 544 | { |
750b1625 | 545 | struct qeth_channel *channel = &card->read; |
4a71df50 | 546 | struct qeth_cmd_buffer *iob; |
750b1625 | 547 | int rc; |
4a71df50 | 548 | |
847a50fd | 549 | QETH_CARD_TEXT(card, 5, "issnxrd"); |
750b1625 | 550 | if (channel->state != CH_STATE_UP) |
4a71df50 | 551 | return -EIO; |
750b1625 | 552 | iob = qeth_get_buffer(channel); |
4a71df50 | 553 | if (!iob) { |
74eacdb9 FB |
554 | dev_warn(&card->gdev->dev, "The qeth device driver " |
555 | "failed to recover an error on the device\n"); | |
556 | QETH_DBF_MESSAGE(2, "%s issue_next_read failed: no iob " | |
557 | "available\n", dev_name(&card->gdev->dev)); | |
4a71df50 FB |
558 | return -ENOMEM; |
559 | } | |
f15cdaf2 | 560 | qeth_setup_ccw(channel->ccw, CCW_CMD_READ, QETH_BUFSIZE, iob->data); |
847a50fd | 561 | QETH_CARD_TEXT(card, 6, "noirqpnd"); |
f15cdaf2 | 562 | rc = ccw_device_start(channel->ccwdev, channel->ccw, |
4a71df50 FB |
563 | (addr_t) iob, 0, 0); |
564 | if (rc) { | |
74eacdb9 FB |
565 | QETH_DBF_MESSAGE(2, "%s error in starting next read ccw! " |
566 | "rc=%i\n", dev_name(&card->gdev->dev), rc); | |
750b1625 | 567 | atomic_set(&channel->irq_pending, 0); |
908abbb5 | 568 | card->read_or_write_problem = 1; |
4a71df50 FB |
569 | qeth_schedule_recovery(card); |
570 | wake_up(&card->wait_q); | |
571 | } | |
572 | return rc; | |
573 | } | |
574 | ||
17bf8c9b JW |
575 | static int qeth_issue_next_read(struct qeth_card *card) |
576 | { | |
577 | int ret; | |
578 | ||
579 | spin_lock_irq(get_ccwdev_lock(CARD_RDEV(card))); | |
580 | ret = __qeth_issue_next_read(card); | |
581 | spin_unlock_irq(get_ccwdev_lock(CARD_RDEV(card))); | |
582 | ||
583 | return ret; | |
584 | } | |
585 | ||
4a71df50 FB |
586 | static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card) |
587 | { | |
588 | struct qeth_reply *reply; | |
589 | ||
590 | reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC); | |
591 | if (reply) { | |
ae695927 | 592 | refcount_set(&reply->refcnt, 1); |
4a71df50 FB |
593 | atomic_set(&reply->received, 0); |
594 | reply->card = card; | |
6531084c | 595 | } |
4a71df50 FB |
596 | return reply; |
597 | } | |
598 | ||
599 | static void qeth_get_reply(struct qeth_reply *reply) | |
600 | { | |
ae695927 | 601 | refcount_inc(&reply->refcnt); |
4a71df50 FB |
602 | } |
603 | ||
604 | static void qeth_put_reply(struct qeth_reply *reply) | |
605 | { | |
ae695927 | 606 | if (refcount_dec_and_test(&reply->refcnt)) |
4a71df50 FB |
607 | kfree(reply); |
608 | } | |
609 | ||
d11ba0c4 | 610 | static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc, |
4a71df50 FB |
611 | struct qeth_card *card) |
612 | { | |
4a71df50 | 613 | char *ipa_name; |
d11ba0c4 | 614 | int com = cmd->hdr.command; |
4a71df50 | 615 | ipa_name = qeth_get_ipa_cmd_name(com); |
d11ba0c4 | 616 | if (rc) |
70919e23 UB |
617 | QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s/%s returned " |
618 | "x%X \"%s\"\n", | |
619 | ipa_name, com, dev_name(&card->gdev->dev), | |
620 | QETH_CARD_IFNAME(card), rc, | |
621 | qeth_get_ipa_msg(rc)); | |
d11ba0c4 | 622 | else |
70919e23 UB |
623 | QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s/%s succeeded\n", |
624 | ipa_name, com, dev_name(&card->gdev->dev), | |
625 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
626 | } |
627 | ||
628 | static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card, | |
629 | struct qeth_cmd_buffer *iob) | |
630 | { | |
631 | struct qeth_ipa_cmd *cmd = NULL; | |
632 | ||
847a50fd | 633 | QETH_CARD_TEXT(card, 5, "chkipad"); |
4a71df50 FB |
634 | if (IS_IPA(iob->data)) { |
635 | cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data); | |
636 | if (IS_IPA_REPLY(cmd)) { | |
76b11f8e UB |
637 | if (cmd->hdr.command != IPA_CMD_SETCCID && |
638 | cmd->hdr.command != IPA_CMD_DELCCID && | |
639 | cmd->hdr.command != IPA_CMD_MODCCID && | |
640 | cmd->hdr.command != IPA_CMD_SET_DIAG_ASS) | |
d11ba0c4 PT |
641 | qeth_issue_ipa_msg(cmd, |
642 | cmd->hdr.return_code, card); | |
4a71df50 FB |
643 | return cmd; |
644 | } else { | |
645 | switch (cmd->hdr.command) { | |
646 | case IPA_CMD_STOPLAN: | |
0f54761d SR |
647 | if (cmd->hdr.return_code == |
648 | IPA_RC_VEPA_TO_VEB_TRANSITION) { | |
649 | dev_err(&card->gdev->dev, | |
650 | "Interface %s is down because the " | |
651 | "adjacent port is no longer in " | |
652 | "reflective relay mode\n", | |
653 | QETH_CARD_IFNAME(card)); | |
654 | qeth_close_dev(card); | |
655 | } else { | |
656 | dev_warn(&card->gdev->dev, | |
74eacdb9 FB |
657 | "The link for interface %s on CHPID" |
658 | " 0x%X failed\n", | |
4a71df50 FB |
659 | QETH_CARD_IFNAME(card), |
660 | card->info.chpid); | |
0f54761d SR |
661 | qeth_issue_ipa_msg(cmd, |
662 | cmd->hdr.return_code, card); | |
663 | } | |
4a71df50 | 664 | card->lan_online = 0; |
d3d1b205 | 665 | netif_carrier_off(card->dev); |
4a71df50 FB |
666 | return NULL; |
667 | case IPA_CMD_STARTLAN: | |
74eacdb9 FB |
668 | dev_info(&card->gdev->dev, |
669 | "The link for %s on CHPID 0x%X has" | |
670 | " been restored\n", | |
4a71df50 FB |
671 | QETH_CARD_IFNAME(card), |
672 | card->info.chpid); | |
673 | netif_carrier_on(card->dev); | |
922dc062 | 674 | card->lan_online = 1; |
1da74b1c FB |
675 | if (card->info.hwtrap) |
676 | card->info.hwtrap = 2; | |
4a71df50 FB |
677 | qeth_schedule_recovery(card); |
678 | return NULL; | |
9c23f4da EC |
679 | case IPA_CMD_SETBRIDGEPORT_IQD: |
680 | case IPA_CMD_SETBRIDGEPORT_OSA: | |
9f48b9db | 681 | case IPA_CMD_ADDRESS_CHANGE_NOTIF: |
c044dc21 EC |
682 | if (card->discipline->control_event_handler |
683 | (card, cmd)) | |
684 | return cmd; | |
685 | else | |
686 | return NULL; | |
4a71df50 FB |
687 | case IPA_CMD_MODCCID: |
688 | return cmd; | |
689 | case IPA_CMD_REGISTER_LOCAL_ADDR: | |
847a50fd | 690 | QETH_CARD_TEXT(card, 3, "irla"); |
4a71df50 FB |
691 | break; |
692 | case IPA_CMD_UNREGISTER_LOCAL_ADDR: | |
847a50fd | 693 | QETH_CARD_TEXT(card, 3, "urla"); |
4a71df50 FB |
694 | break; |
695 | default: | |
c4cef07c | 696 | QETH_DBF_MESSAGE(2, "Received data is IPA " |
4a71df50 FB |
697 | "but not a reply!\n"); |
698 | break; | |
699 | } | |
700 | } | |
701 | } | |
702 | return cmd; | |
703 | } | |
704 | ||
705 | void qeth_clear_ipacmd_list(struct qeth_card *card) | |
706 | { | |
707 | struct qeth_reply *reply, *r; | |
708 | unsigned long flags; | |
709 | ||
847a50fd | 710 | QETH_CARD_TEXT(card, 4, "clipalst"); |
4a71df50 FB |
711 | |
712 | spin_lock_irqsave(&card->lock, flags); | |
713 | list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) { | |
714 | qeth_get_reply(reply); | |
715 | reply->rc = -EIO; | |
716 | atomic_inc(&reply->received); | |
717 | list_del_init(&reply->list); | |
718 | wake_up(&reply->wait_q); | |
719 | qeth_put_reply(reply); | |
720 | } | |
721 | spin_unlock_irqrestore(&card->lock, flags); | |
722 | } | |
723 | EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list); | |
724 | ||
5113fec0 UB |
725 | static int qeth_check_idx_response(struct qeth_card *card, |
726 | unsigned char *buffer) | |
4a71df50 FB |
727 | { |
728 | if (!buffer) | |
729 | return 0; | |
730 | ||
d11ba0c4 | 731 | QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN); |
4a71df50 | 732 | if ((buffer[2] & 0xc0) == 0xc0) { |
d857e111 JW |
733 | QETH_DBF_MESSAGE(2, "received an IDX TERMINATE with cause code %#02x\n", |
734 | buffer[4]); | |
847a50fd CO |
735 | QETH_CARD_TEXT(card, 2, "ckidxres"); |
736 | QETH_CARD_TEXT(card, 2, " idxterm"); | |
737 | QETH_CARD_TEXT_(card, 2, " rc%d", -EIO); | |
5113fec0 UB |
738 | if (buffer[4] == 0xf6) { |
739 | dev_err(&card->gdev->dev, | |
740 | "The qeth device is not configured " | |
741 | "for the OSI layer required by z/VM\n"); | |
742 | return -EPERM; | |
743 | } | |
4a71df50 FB |
744 | return -EIO; |
745 | } | |
746 | return 0; | |
747 | } | |
748 | ||
bca51650 TR |
749 | static struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev) |
750 | { | |
751 | struct qeth_card *card = dev_get_drvdata(&((struct ccwgroup_device *) | |
752 | dev_get_drvdata(&cdev->dev))->dev); | |
753 | return card; | |
754 | } | |
755 | ||
4a71df50 FB |
756 | static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel) |
757 | { | |
758 | __u8 index; | |
759 | ||
847a50fd | 760 | QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "getbuff"); |
4a71df50 FB |
761 | index = channel->io_buf_no; |
762 | do { | |
763 | if (channel->iob[index].state == BUF_STATE_FREE) { | |
764 | channel->iob[index].state = BUF_STATE_LOCKED; | |
765 | channel->io_buf_no = (channel->io_buf_no + 1) % | |
766 | QETH_CMD_BUFFER_NO; | |
767 | memset(channel->iob[index].data, 0, QETH_BUFSIZE); | |
768 | return channel->iob + index; | |
769 | } | |
770 | index = (index + 1) % QETH_CMD_BUFFER_NO; | |
771 | } while (index != channel->io_buf_no); | |
772 | ||
773 | return NULL; | |
774 | } | |
775 | ||
776 | void qeth_release_buffer(struct qeth_channel *channel, | |
777 | struct qeth_cmd_buffer *iob) | |
778 | { | |
779 | unsigned long flags; | |
780 | ||
847a50fd | 781 | QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "relbuff"); |
4a71df50 FB |
782 | spin_lock_irqsave(&channel->iob_lock, flags); |
783 | memset(iob->data, 0, QETH_BUFSIZE); | |
784 | iob->state = BUF_STATE_FREE; | |
785 | iob->callback = qeth_send_control_data_cb; | |
786 | iob->rc = 0; | |
787 | spin_unlock_irqrestore(&channel->iob_lock, flags); | |
039055b9 | 788 | wake_up(&channel->wait_q); |
4a71df50 FB |
789 | } |
790 | EXPORT_SYMBOL_GPL(qeth_release_buffer); | |
791 | ||
792 | static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel) | |
793 | { | |
794 | struct qeth_cmd_buffer *buffer = NULL; | |
795 | unsigned long flags; | |
796 | ||
797 | spin_lock_irqsave(&channel->iob_lock, flags); | |
798 | buffer = __qeth_get_buffer(channel); | |
799 | spin_unlock_irqrestore(&channel->iob_lock, flags); | |
800 | return buffer; | |
801 | } | |
802 | ||
803 | struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *channel) | |
804 | { | |
805 | struct qeth_cmd_buffer *buffer; | |
806 | wait_event(channel->wait_q, | |
807 | ((buffer = qeth_get_buffer(channel)) != NULL)); | |
808 | return buffer; | |
809 | } | |
810 | EXPORT_SYMBOL_GPL(qeth_wait_for_buffer); | |
811 | ||
812 | void qeth_clear_cmd_buffers(struct qeth_channel *channel) | |
813 | { | |
814 | int cnt; | |
815 | ||
816 | for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) | |
817 | qeth_release_buffer(channel, &channel->iob[cnt]); | |
4a71df50 FB |
818 | channel->io_buf_no = 0; |
819 | } | |
820 | EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers); | |
821 | ||
822 | static void qeth_send_control_data_cb(struct qeth_channel *channel, | |
823 | struct qeth_cmd_buffer *iob) | |
824 | { | |
825 | struct qeth_card *card; | |
826 | struct qeth_reply *reply, *r; | |
827 | struct qeth_ipa_cmd *cmd; | |
828 | unsigned long flags; | |
829 | int keep_reply; | |
5113fec0 | 830 | int rc = 0; |
4a71df50 | 831 | |
4a71df50 | 832 | card = CARD_FROM_CDEV(channel->ccwdev); |
847a50fd | 833 | QETH_CARD_TEXT(card, 4, "sndctlcb"); |
5113fec0 UB |
834 | rc = qeth_check_idx_response(card, iob->data); |
835 | switch (rc) { | |
836 | case 0: | |
837 | break; | |
838 | case -EIO: | |
4a71df50 | 839 | qeth_clear_ipacmd_list(card); |
5113fec0 | 840 | qeth_schedule_recovery(card); |
01fc3e86 | 841 | /* fall through */ |
5113fec0 | 842 | default: |
4a71df50 FB |
843 | goto out; |
844 | } | |
845 | ||
846 | cmd = qeth_check_ipa_data(card, iob); | |
847 | if ((cmd == NULL) && (card->state != CARD_STATE_DOWN)) | |
848 | goto out; | |
849 | /*in case of OSN : check if cmd is set */ | |
850 | if (card->info.type == QETH_CARD_TYPE_OSN && | |
851 | cmd && | |
852 | cmd->hdr.command != IPA_CMD_STARTLAN && | |
853 | card->osn_info.assist_cb != NULL) { | |
854 | card->osn_info.assist_cb(card->dev, cmd); | |
855 | goto out; | |
856 | } | |
857 | ||
858 | spin_lock_irqsave(&card->lock, flags); | |
859 | list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) { | |
860 | if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) || | |
861 | ((cmd) && (reply->seqno == cmd->hdr.seqno))) { | |
862 | qeth_get_reply(reply); | |
863 | list_del_init(&reply->list); | |
864 | spin_unlock_irqrestore(&card->lock, flags); | |
865 | keep_reply = 0; | |
866 | if (reply->callback != NULL) { | |
867 | if (cmd) { | |
868 | reply->offset = (__u16)((char *)cmd - | |
869 | (char *)iob->data); | |
870 | keep_reply = reply->callback(card, | |
871 | reply, | |
872 | (unsigned long)cmd); | |
873 | } else | |
874 | keep_reply = reply->callback(card, | |
875 | reply, | |
876 | (unsigned long)iob); | |
877 | } | |
878 | if (cmd) | |
879 | reply->rc = (u16) cmd->hdr.return_code; | |
880 | else if (iob->rc) | |
881 | reply->rc = iob->rc; | |
882 | if (keep_reply) { | |
883 | spin_lock_irqsave(&card->lock, flags); | |
884 | list_add_tail(&reply->list, | |
885 | &card->cmd_waiter_list); | |
886 | spin_unlock_irqrestore(&card->lock, flags); | |
887 | } else { | |
888 | atomic_inc(&reply->received); | |
889 | wake_up(&reply->wait_q); | |
890 | } | |
891 | qeth_put_reply(reply); | |
892 | goto out; | |
893 | } | |
894 | } | |
895 | spin_unlock_irqrestore(&card->lock, flags); | |
896 | out: | |
897 | memcpy(&card->seqno.pdu_hdr_ack, | |
898 | QETH_PDU_HEADER_SEQ_NO(iob->data), | |
899 | QETH_SEQ_NO_LENGTH); | |
900 | qeth_release_buffer(channel, iob); | |
901 | } | |
902 | ||
24142fd8 | 903 | static int qeth_setup_channel(struct qeth_channel *channel, bool alloc_buffers) |
4a71df50 FB |
904 | { |
905 | int cnt; | |
906 | ||
d11ba0c4 | 907 | QETH_DBF_TEXT(SETUP, 2, "setupch"); |
24142fd8 | 908 | |
f15cdaf2 JW |
909 | channel->ccw = kmalloc(sizeof(struct ccw1), GFP_KERNEL | GFP_DMA); |
910 | if (!channel->ccw) | |
911 | return -ENOMEM; | |
24142fd8 JW |
912 | channel->state = CH_STATE_DOWN; |
913 | atomic_set(&channel->irq_pending, 0); | |
914 | init_waitqueue_head(&channel->wait_q); | |
915 | ||
916 | if (!alloc_buffers) | |
917 | return 0; | |
918 | ||
4a71df50 | 919 | for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) { |
ae57b20a | 920 | channel->iob[cnt].data = |
b3332930 | 921 | kzalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL); |
4a71df50 FB |
922 | if (channel->iob[cnt].data == NULL) |
923 | break; | |
924 | channel->iob[cnt].state = BUF_STATE_FREE; | |
925 | channel->iob[cnt].channel = channel; | |
926 | channel->iob[cnt].callback = qeth_send_control_data_cb; | |
927 | channel->iob[cnt].rc = 0; | |
928 | } | |
929 | if (cnt < QETH_CMD_BUFFER_NO) { | |
f15cdaf2 | 930 | kfree(channel->ccw); |
4a71df50 FB |
931 | while (cnt-- > 0) |
932 | kfree(channel->iob[cnt].data); | |
933 | return -ENOMEM; | |
934 | } | |
4a71df50 | 935 | channel->io_buf_no = 0; |
4a71df50 FB |
936 | spin_lock_init(&channel->iob_lock); |
937 | ||
4a71df50 FB |
938 | return 0; |
939 | } | |
940 | ||
941 | static int qeth_set_thread_start_bit(struct qeth_card *card, | |
942 | unsigned long thread) | |
943 | { | |
944 | unsigned long flags; | |
945 | ||
946 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
947 | if (!(card->thread_allowed_mask & thread) || | |
948 | (card->thread_start_mask & thread)) { | |
949 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
950 | return -EPERM; | |
951 | } | |
952 | card->thread_start_mask |= thread; | |
953 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
954 | return 0; | |
955 | } | |
956 | ||
957 | void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread) | |
958 | { | |
959 | unsigned long flags; | |
960 | ||
961 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
962 | card->thread_start_mask &= ~thread; | |
963 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
964 | wake_up(&card->wait_q); | |
965 | } | |
966 | EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit); | |
967 | ||
968 | void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread) | |
969 | { | |
970 | unsigned long flags; | |
971 | ||
972 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
973 | card->thread_running_mask &= ~thread; | |
974 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
1063e432 | 975 | wake_up_all(&card->wait_q); |
4a71df50 FB |
976 | } |
977 | EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit); | |
978 | ||
979 | static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread) | |
980 | { | |
981 | unsigned long flags; | |
982 | int rc = 0; | |
983 | ||
984 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
985 | if (card->thread_start_mask & thread) { | |
986 | if ((card->thread_allowed_mask & thread) && | |
987 | !(card->thread_running_mask & thread)) { | |
988 | rc = 1; | |
989 | card->thread_start_mask &= ~thread; | |
990 | card->thread_running_mask |= thread; | |
991 | } else | |
992 | rc = -EPERM; | |
993 | } | |
994 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
995 | return rc; | |
996 | } | |
997 | ||
998 | int qeth_do_run_thread(struct qeth_card *card, unsigned long thread) | |
999 | { | |
1000 | int rc = 0; | |
1001 | ||
1002 | wait_event(card->wait_q, | |
1003 | (rc = __qeth_do_run_thread(card, thread)) >= 0); | |
1004 | return rc; | |
1005 | } | |
1006 | EXPORT_SYMBOL_GPL(qeth_do_run_thread); | |
1007 | ||
1008 | void qeth_schedule_recovery(struct qeth_card *card) | |
1009 | { | |
847a50fd | 1010 | QETH_CARD_TEXT(card, 2, "startrec"); |
4a71df50 FB |
1011 | if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0) |
1012 | schedule_work(&card->kernel_thread_starter); | |
1013 | } | |
1014 | EXPORT_SYMBOL_GPL(qeth_schedule_recovery); | |
1015 | ||
1016 | static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb) | |
1017 | { | |
1018 | int dstat, cstat; | |
1019 | char *sense; | |
847a50fd | 1020 | struct qeth_card *card; |
4a71df50 FB |
1021 | |
1022 | sense = (char *) irb->ecw; | |
23d805b6 PO |
1023 | cstat = irb->scsw.cmd.cstat; |
1024 | dstat = irb->scsw.cmd.dstat; | |
847a50fd | 1025 | card = CARD_FROM_CDEV(cdev); |
4a71df50 FB |
1026 | |
1027 | if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK | | |
1028 | SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK | | |
1029 | SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) { | |
847a50fd | 1030 | QETH_CARD_TEXT(card, 2, "CGENCHK"); |
74eacdb9 FB |
1031 | dev_warn(&cdev->dev, "The qeth device driver " |
1032 | "failed to recover an error on the device\n"); | |
5113fec0 | 1033 | QETH_DBF_MESSAGE(2, "%s check on device dstat=x%x, cstat=x%x\n", |
74eacdb9 | 1034 | dev_name(&cdev->dev), dstat, cstat); |
4a71df50 FB |
1035 | print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET, |
1036 | 16, 1, irb, 64, 1); | |
1037 | return 1; | |
1038 | } | |
1039 | ||
1040 | if (dstat & DEV_STAT_UNIT_CHECK) { | |
1041 | if (sense[SENSE_RESETTING_EVENT_BYTE] & | |
1042 | SENSE_RESETTING_EVENT_FLAG) { | |
847a50fd | 1043 | QETH_CARD_TEXT(card, 2, "REVIND"); |
4a71df50 FB |
1044 | return 1; |
1045 | } | |
1046 | if (sense[SENSE_COMMAND_REJECT_BYTE] & | |
1047 | SENSE_COMMAND_REJECT_FLAG) { | |
847a50fd | 1048 | QETH_CARD_TEXT(card, 2, "CMDREJi"); |
28a7e4c9 | 1049 | return 1; |
4a71df50 FB |
1050 | } |
1051 | if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) { | |
847a50fd | 1052 | QETH_CARD_TEXT(card, 2, "AFFE"); |
4a71df50 FB |
1053 | return 1; |
1054 | } | |
1055 | if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) { | |
847a50fd | 1056 | QETH_CARD_TEXT(card, 2, "ZEROSEN"); |
4a71df50 FB |
1057 | return 0; |
1058 | } | |
847a50fd | 1059 | QETH_CARD_TEXT(card, 2, "DGENCHK"); |
4a71df50 FB |
1060 | return 1; |
1061 | } | |
1062 | return 0; | |
1063 | } | |
1064 | ||
1065 | static long __qeth_check_irb_error(struct ccw_device *cdev, | |
1066 | unsigned long intparm, struct irb *irb) | |
1067 | { | |
847a50fd CO |
1068 | struct qeth_card *card; |
1069 | ||
1070 | card = CARD_FROM_CDEV(cdev); | |
1071 | ||
e95051ff | 1072 | if (!card || !IS_ERR(irb)) |
4a71df50 FB |
1073 | return 0; |
1074 | ||
1075 | switch (PTR_ERR(irb)) { | |
1076 | case -EIO: | |
74eacdb9 FB |
1077 | QETH_DBF_MESSAGE(2, "%s i/o-error on device\n", |
1078 | dev_name(&cdev->dev)); | |
847a50fd CO |
1079 | QETH_CARD_TEXT(card, 2, "ckirberr"); |
1080 | QETH_CARD_TEXT_(card, 2, " rc%d", -EIO); | |
4a71df50 FB |
1081 | break; |
1082 | case -ETIMEDOUT: | |
74eacdb9 FB |
1083 | dev_warn(&cdev->dev, "A hardware operation timed out" |
1084 | " on the device\n"); | |
847a50fd CO |
1085 | QETH_CARD_TEXT(card, 2, "ckirberr"); |
1086 | QETH_CARD_TEXT_(card, 2, " rc%d", -ETIMEDOUT); | |
4a71df50 | 1087 | if (intparm == QETH_RCD_PARM) { |
e95051ff | 1088 | if (card->data.ccwdev == cdev) { |
4a71df50 FB |
1089 | card->data.state = CH_STATE_DOWN; |
1090 | wake_up(&card->wait_q); | |
1091 | } | |
1092 | } | |
1093 | break; | |
1094 | default: | |
74eacdb9 FB |
1095 | QETH_DBF_MESSAGE(2, "%s unknown error %ld on device\n", |
1096 | dev_name(&cdev->dev), PTR_ERR(irb)); | |
847a50fd CO |
1097 | QETH_CARD_TEXT(card, 2, "ckirberr"); |
1098 | QETH_CARD_TEXT(card, 2, " rc???"); | |
4a71df50 FB |
1099 | } |
1100 | return PTR_ERR(irb); | |
1101 | } | |
1102 | ||
1103 | static void qeth_irq(struct ccw_device *cdev, unsigned long intparm, | |
1104 | struct irb *irb) | |
1105 | { | |
1106 | int rc; | |
1107 | int cstat, dstat; | |
db71bbbd | 1108 | struct qeth_cmd_buffer *iob = NULL; |
4a71df50 FB |
1109 | struct qeth_channel *channel; |
1110 | struct qeth_card *card; | |
4a71df50 FB |
1111 | |
1112 | card = CARD_FROM_CDEV(cdev); | |
1113 | if (!card) | |
1114 | return; | |
1115 | ||
847a50fd CO |
1116 | QETH_CARD_TEXT(card, 5, "irq"); |
1117 | ||
4a71df50 FB |
1118 | if (card->read.ccwdev == cdev) { |
1119 | channel = &card->read; | |
847a50fd | 1120 | QETH_CARD_TEXT(card, 5, "read"); |
4a71df50 FB |
1121 | } else if (card->write.ccwdev == cdev) { |
1122 | channel = &card->write; | |
847a50fd | 1123 | QETH_CARD_TEXT(card, 5, "write"); |
4a71df50 FB |
1124 | } else { |
1125 | channel = &card->data; | |
847a50fd | 1126 | QETH_CARD_TEXT(card, 5, "data"); |
4a71df50 | 1127 | } |
db71bbbd JW |
1128 | |
1129 | if (qeth_intparm_is_iob(intparm)) | |
1130 | iob = (struct qeth_cmd_buffer *) __va((addr_t)intparm); | |
1131 | ||
1132 | if (__qeth_check_irb_error(cdev, intparm, irb)) { | |
1133 | /* IO was terminated, free its resources. */ | |
1134 | if (iob) | |
1135 | qeth_release_buffer(iob->channel, iob); | |
1136 | atomic_set(&channel->irq_pending, 0); | |
1137 | wake_up(&card->wait_q); | |
1138 | return; | |
1139 | } | |
1140 | ||
4a71df50 FB |
1141 | atomic_set(&channel->irq_pending, 0); |
1142 | ||
23d805b6 | 1143 | if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC)) |
4a71df50 FB |
1144 | channel->state = CH_STATE_STOPPED; |
1145 | ||
23d805b6 | 1146 | if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC)) |
4a71df50 FB |
1147 | channel->state = CH_STATE_HALTED; |
1148 | ||
1149 | /*let's wake up immediately on data channel*/ | |
1150 | if ((channel == &card->data) && (intparm != 0) && | |
1151 | (intparm != QETH_RCD_PARM)) | |
1152 | goto out; | |
1153 | ||
1154 | if (intparm == QETH_CLEAR_CHANNEL_PARM) { | |
847a50fd | 1155 | QETH_CARD_TEXT(card, 6, "clrchpar"); |
4a71df50 FB |
1156 | /* we don't have to handle this further */ |
1157 | intparm = 0; | |
1158 | } | |
1159 | if (intparm == QETH_HALT_CHANNEL_PARM) { | |
847a50fd | 1160 | QETH_CARD_TEXT(card, 6, "hltchpar"); |
4a71df50 FB |
1161 | /* we don't have to handle this further */ |
1162 | intparm = 0; | |
1163 | } | |
db71bbbd JW |
1164 | |
1165 | cstat = irb->scsw.cmd.cstat; | |
1166 | dstat = irb->scsw.cmd.dstat; | |
1167 | ||
4a71df50 FB |
1168 | if ((dstat & DEV_STAT_UNIT_EXCEP) || |
1169 | (dstat & DEV_STAT_UNIT_CHECK) || | |
1170 | (cstat)) { | |
1171 | if (irb->esw.esw0.erw.cons) { | |
74eacdb9 FB |
1172 | dev_warn(&channel->ccwdev->dev, |
1173 | "The qeth device driver failed to recover " | |
1174 | "an error on the device\n"); | |
1175 | QETH_DBF_MESSAGE(2, "%s sense data available. cstat " | |
1176 | "0x%X dstat 0x%X\n", | |
1177 | dev_name(&channel->ccwdev->dev), cstat, dstat); | |
4a71df50 FB |
1178 | print_hex_dump(KERN_WARNING, "qeth: irb ", |
1179 | DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1); | |
1180 | print_hex_dump(KERN_WARNING, "qeth: sense data ", | |
1181 | DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1); | |
1182 | } | |
1183 | if (intparm == QETH_RCD_PARM) { | |
1184 | channel->state = CH_STATE_DOWN; | |
1185 | goto out; | |
1186 | } | |
1187 | rc = qeth_get_problem(cdev, irb); | |
1188 | if (rc) { | |
a6c3d939 | 1189 | card->read_or_write_problem = 1; |
28a7e4c9 | 1190 | qeth_clear_ipacmd_list(card); |
4a71df50 FB |
1191 | qeth_schedule_recovery(card); |
1192 | goto out; | |
1193 | } | |
1194 | } | |
1195 | ||
1196 | if (intparm == QETH_RCD_PARM) { | |
1197 | channel->state = CH_STATE_RCD_DONE; | |
1198 | goto out; | |
1199 | } | |
4a71df50 FB |
1200 | if (channel == &card->data) |
1201 | return; | |
1202 | if (channel == &card->read && | |
1203 | channel->state == CH_STATE_UP) | |
17bf8c9b | 1204 | __qeth_issue_next_read(card); |
4a71df50 | 1205 | |
db71bbbd JW |
1206 | if (iob && iob->callback) |
1207 | iob->callback(iob->channel, iob); | |
4a71df50 | 1208 | |
4a71df50 FB |
1209 | out: |
1210 | wake_up(&card->wait_q); | |
1211 | return; | |
1212 | } | |
1213 | ||
b3332930 | 1214 | static void qeth_notify_skbs(struct qeth_qdio_out_q *q, |
0da9581d | 1215 | struct qeth_qdio_out_buffer *buf, |
b3332930 | 1216 | enum iucv_tx_notify notification) |
4a71df50 | 1217 | { |
4a71df50 FB |
1218 | struct sk_buff *skb; |
1219 | ||
b3332930 FB |
1220 | if (skb_queue_empty(&buf->skb_list)) |
1221 | goto out; | |
1222 | skb = skb_peek(&buf->skb_list); | |
1223 | while (skb) { | |
1224 | QETH_CARD_TEXT_(q->card, 5, "skbn%d", notification); | |
1225 | QETH_CARD_TEXT_(q->card, 5, "%lx", (long) skb); | |
6bee4e26 | 1226 | if (be16_to_cpu(skb->protocol) == ETH_P_AF_IUCV) { |
b3332930 FB |
1227 | if (skb->sk) { |
1228 | struct iucv_sock *iucv = iucv_sk(skb->sk); | |
1229 | iucv->sk_txnotify(skb, notification); | |
1230 | } | |
1231 | } | |
1232 | if (skb_queue_is_last(&buf->skb_list, skb)) | |
1233 | skb = NULL; | |
1234 | else | |
1235 | skb = skb_queue_next(&buf->skb_list, skb); | |
1236 | } | |
1237 | out: | |
1238 | return; | |
1239 | } | |
1240 | ||
1241 | static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf) | |
1242 | { | |
1243 | struct sk_buff *skb; | |
72861ae7 EL |
1244 | struct iucv_sock *iucv; |
1245 | int notify_general_error = 0; | |
1246 | ||
1247 | if (atomic_read(&buf->state) == QETH_QDIO_BUF_PENDING) | |
1248 | notify_general_error = 1; | |
1249 | ||
1250 | /* release may never happen from within CQ tasklet scope */ | |
18af5c17 | 1251 | WARN_ON_ONCE(atomic_read(&buf->state) == QETH_QDIO_BUF_IN_CQ); |
4a71df50 | 1252 | |
b67d801f UB |
1253 | skb = skb_dequeue(&buf->skb_list); |
1254 | while (skb) { | |
b3332930 FB |
1255 | QETH_CARD_TEXT(buf->q->card, 5, "skbr"); |
1256 | QETH_CARD_TEXT_(buf->q->card, 5, "%lx", (long) skb); | |
6bee4e26 HW |
1257 | if (notify_general_error && |
1258 | be16_to_cpu(skb->protocol) == ETH_P_AF_IUCV) { | |
72861ae7 EL |
1259 | if (skb->sk) { |
1260 | iucv = iucv_sk(skb->sk); | |
1261 | iucv->sk_txnotify(skb, TX_NOTIFY_GENERALERROR); | |
1262 | } | |
1263 | } | |
63354797 | 1264 | refcount_dec(&skb->users); |
b67d801f | 1265 | dev_kfree_skb_any(skb); |
4a71df50 FB |
1266 | skb = skb_dequeue(&buf->skb_list); |
1267 | } | |
b3332930 FB |
1268 | } |
1269 | ||
1270 | static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, | |
3b346c18 | 1271 | struct qeth_qdio_out_buffer *buf) |
b3332930 FB |
1272 | { |
1273 | int i; | |
1274 | ||
1275 | /* is PCI flag set on buffer? */ | |
1276 | if (buf->buffer->element[0].sflags & SBAL_SFLAGS0_PCI_REQ) | |
1277 | atomic_dec(&queue->set_pci_flags_count); | |
1278 | ||
3b346c18 JW |
1279 | qeth_release_skbs(buf); |
1280 | ||
4a71df50 | 1281 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) { |
683d718a FB |
1282 | if (buf->buffer->element[i].addr && buf->is_header[i]) |
1283 | kmem_cache_free(qeth_core_header_cache, | |
1284 | buf->buffer->element[i].addr); | |
1285 | buf->is_header[i] = 0; | |
4a71df50 | 1286 | } |
3b346c18 JW |
1287 | |
1288 | qeth_scrub_qdio_buffer(buf->buffer, | |
1289 | QETH_MAX_BUFFER_ELEMENTS(queue->card)); | |
4a71df50 | 1290 | buf->next_element_to_fill = 0; |
3b346c18 | 1291 | atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY); |
0da9581d EL |
1292 | } |
1293 | ||
1294 | static void qeth_clear_outq_buffers(struct qeth_qdio_out_q *q, int free) | |
1295 | { | |
1296 | int j; | |
1297 | ||
1298 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { | |
1299 | if (!q->bufs[j]) | |
1300 | continue; | |
72861ae7 | 1301 | qeth_cleanup_handled_pending(q, j, 1); |
3b346c18 | 1302 | qeth_clear_output_buffer(q, q->bufs[j]); |
0da9581d EL |
1303 | if (free) { |
1304 | kmem_cache_free(qeth_qdio_outbuf_cache, q->bufs[j]); | |
1305 | q->bufs[j] = NULL; | |
1306 | } | |
1307 | } | |
4a71df50 FB |
1308 | } |
1309 | ||
1310 | void qeth_clear_qdio_buffers(struct qeth_card *card) | |
1311 | { | |
0da9581d | 1312 | int i; |
4a71df50 | 1313 | |
847a50fd | 1314 | QETH_CARD_TEXT(card, 2, "clearqdbf"); |
4a71df50 | 1315 | /* clear outbound buffers to free skbs */ |
0da9581d | 1316 | for (i = 0; i < card->qdio.no_out_queues; ++i) { |
4a71df50 | 1317 | if (card->qdio.out_qs[i]) { |
0da9581d | 1318 | qeth_clear_outq_buffers(card->qdio.out_qs[i], 0); |
4a71df50 | 1319 | } |
0da9581d | 1320 | } |
4a71df50 FB |
1321 | } |
1322 | EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers); | |
1323 | ||
1324 | static void qeth_free_buffer_pool(struct qeth_card *card) | |
1325 | { | |
1326 | struct qeth_buffer_pool_entry *pool_entry, *tmp; | |
1327 | int i = 0; | |
4a71df50 FB |
1328 | list_for_each_entry_safe(pool_entry, tmp, |
1329 | &card->qdio.init_pool.entry_list, init_list){ | |
1330 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) | |
1331 | free_page((unsigned long)pool_entry->elements[i]); | |
1332 | list_del(&pool_entry->init_list); | |
1333 | kfree(pool_entry); | |
1334 | } | |
1335 | } | |
1336 | ||
4a71df50 FB |
1337 | static void qeth_clean_channel(struct qeth_channel *channel) |
1338 | { | |
1339 | int cnt; | |
1340 | ||
d11ba0c4 | 1341 | QETH_DBF_TEXT(SETUP, 2, "freech"); |
4a71df50 FB |
1342 | for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) |
1343 | kfree(channel->iob[cnt].data); | |
f15cdaf2 | 1344 | kfree(channel->ccw); |
4a71df50 FB |
1345 | } |
1346 | ||
725b9c04 SO |
1347 | static void qeth_set_single_write_queues(struct qeth_card *card) |
1348 | { | |
1349 | if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) && | |
1350 | (card->qdio.no_out_queues == 4)) | |
1351 | qeth_free_qdio_buffers(card); | |
1352 | ||
1353 | card->qdio.no_out_queues = 1; | |
1354 | if (card->qdio.default_out_queue != 0) | |
1355 | dev_info(&card->gdev->dev, "Priority Queueing not supported\n"); | |
1356 | ||
1357 | card->qdio.default_out_queue = 0; | |
1358 | } | |
1359 | ||
1360 | static void qeth_set_multiple_write_queues(struct qeth_card *card) | |
1361 | { | |
1362 | if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) && | |
1363 | (card->qdio.no_out_queues == 1)) { | |
1364 | qeth_free_qdio_buffers(card); | |
1365 | card->qdio.default_out_queue = 2; | |
1366 | } | |
1367 | card->qdio.no_out_queues = 4; | |
1368 | } | |
1369 | ||
1370 | static void qeth_update_from_chp_desc(struct qeth_card *card) | |
4a71df50 | 1371 | { |
4a71df50 | 1372 | struct ccw_device *ccwdev; |
ded27d8d | 1373 | struct channel_path_desc_fmt0 *chp_dsc; |
4a71df50 | 1374 | |
5113fec0 | 1375 | QETH_DBF_TEXT(SETUP, 2, "chp_desc"); |
4a71df50 FB |
1376 | |
1377 | ccwdev = card->data.ccwdev; | |
725b9c04 SO |
1378 | chp_dsc = ccw_device_get_chp_desc(ccwdev, 0); |
1379 | if (!chp_dsc) | |
1380 | goto out; | |
1381 | ||
1382 | card->info.func_level = 0x4100 + chp_dsc->desc; | |
1383 | if (card->info.type == QETH_CARD_TYPE_IQD) | |
1384 | goto out; | |
1385 | ||
1386 | /* CHPP field bit 6 == 1 -> single queue */ | |
1387 | if ((chp_dsc->chpp & 0x02) == 0x02) | |
1388 | qeth_set_single_write_queues(card); | |
1389 | else | |
1390 | qeth_set_multiple_write_queues(card); | |
1391 | out: | |
1392 | kfree(chp_dsc); | |
5113fec0 UB |
1393 | QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues); |
1394 | QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level); | |
4a71df50 FB |
1395 | } |
1396 | ||
1397 | static void qeth_init_qdio_info(struct qeth_card *card) | |
1398 | { | |
d11ba0c4 | 1399 | QETH_DBF_TEXT(SETUP, 4, "intqdinf"); |
4a71df50 | 1400 | atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); |
95f4d8b7 JW |
1401 | card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT; |
1402 | card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; | |
1403 | card->qdio.no_out_queues = QETH_MAX_QUEUES; | |
1404 | ||
4a71df50 | 1405 | /* inbound */ |
ed2e93ef | 1406 | card->qdio.no_in_queues = 1; |
4a71df50 | 1407 | card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT; |
dcf4ae2d FB |
1408 | if (card->info.type == QETH_CARD_TYPE_IQD) |
1409 | card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_HSDEFAULT; | |
1410 | else | |
1411 | card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT; | |
4a71df50 FB |
1412 | card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count; |
1413 | INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list); | |
1414 | INIT_LIST_HEAD(&card->qdio.init_pool.entry_list); | |
1415 | } | |
1416 | ||
95f4d8b7 | 1417 | static void qeth_set_initial_options(struct qeth_card *card) |
4a71df50 FB |
1418 | { |
1419 | card->options.route4.type = NO_ROUTER; | |
1420 | card->options.route6.type = NO_ROUTER; | |
4a71df50 | 1421 | card->options.rx_sg_cb = QETH_RX_SG_CB; |
d64ecc22 | 1422 | card->options.isolation = ISOLATION_MODE_NONE; |
0da9581d | 1423 | card->options.cq = QETH_CQ_DISABLED; |
4a71df50 FB |
1424 | } |
1425 | ||
1426 | static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread) | |
1427 | { | |
1428 | unsigned long flags; | |
1429 | int rc = 0; | |
1430 | ||
1431 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
847a50fd | 1432 | QETH_CARD_TEXT_(card, 4, " %02x%02x%02x", |
4a71df50 FB |
1433 | (u8) card->thread_start_mask, |
1434 | (u8) card->thread_allowed_mask, | |
1435 | (u8) card->thread_running_mask); | |
1436 | rc = (card->thread_start_mask & thread); | |
1437 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
1438 | return rc; | |
1439 | } | |
1440 | ||
1441 | static void qeth_start_kernel_thread(struct work_struct *work) | |
1442 | { | |
3f36b890 | 1443 | struct task_struct *ts; |
4a71df50 FB |
1444 | struct qeth_card *card = container_of(work, struct qeth_card, |
1445 | kernel_thread_starter); | |
847a50fd | 1446 | QETH_CARD_TEXT(card , 2, "strthrd"); |
4a71df50 FB |
1447 | |
1448 | if (card->read.state != CH_STATE_UP && | |
1449 | card->write.state != CH_STATE_UP) | |
1450 | return; | |
3f36b890 | 1451 | if (qeth_do_start_thread(card, QETH_RECOVER_THREAD)) { |
c041f2d4 | 1452 | ts = kthread_run(card->discipline->recover, (void *)card, |
4a71df50 | 1453 | "qeth_recover"); |
3f36b890 FB |
1454 | if (IS_ERR(ts)) { |
1455 | qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); | |
1456 | qeth_clear_thread_running_bit(card, | |
1457 | QETH_RECOVER_THREAD); | |
1458 | } | |
1459 | } | |
4a71df50 FB |
1460 | } |
1461 | ||
bca51650 | 1462 | static void qeth_buffer_reclaim_work(struct work_struct *); |
95f4d8b7 | 1463 | static void qeth_setup_card(struct qeth_card *card) |
4a71df50 | 1464 | { |
d11ba0c4 PT |
1465 | QETH_DBF_TEXT(SETUP, 2, "setupcrd"); |
1466 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 | 1467 | |
95f4d8b7 | 1468 | card->info.type = CARD_RDEV(card)->id.driver_info; |
4a71df50 | 1469 | card->state = CARD_STATE_DOWN; |
4a71df50 | 1470 | spin_lock_init(&card->mclock); |
4a71df50 FB |
1471 | spin_lock_init(&card->lock); |
1472 | spin_lock_init(&card->ip_lock); | |
1473 | spin_lock_init(&card->thread_mask_lock); | |
c4949f07 | 1474 | mutex_init(&card->conf_mutex); |
9dc48ccc | 1475 | mutex_init(&card->discipline_mutex); |
d4ac0246 | 1476 | mutex_init(&card->vid_list_mutex); |
4a71df50 | 1477 | INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread); |
4a71df50 FB |
1478 | INIT_LIST_HEAD(&card->cmd_waiter_list); |
1479 | init_waitqueue_head(&card->wait_q); | |
95f4d8b7 | 1480 | qeth_set_initial_options(card); |
4a71df50 FB |
1481 | /* IP address takeover */ |
1482 | INIT_LIST_HEAD(&card->ipato.entries); | |
4a71df50 | 1483 | qeth_init_qdio_info(card); |
b3332930 | 1484 | INIT_DELAYED_WORK(&card->buffer_reclaim_work, qeth_buffer_reclaim_work); |
0f54761d | 1485 | INIT_WORK(&card->close_dev_work, qeth_close_dev_handler); |
4a71df50 FB |
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"); |
f15cdaf2 | 1502 | card = kzalloc(sizeof(*card), GFP_KERNEL); |
4a71df50 | 1503 | if (!card) |
76b11f8e | 1504 | goto out; |
d11ba0c4 | 1505 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); |
24142fd8 | 1506 | if (qeth_setup_channel(&card->read, true)) |
76b11f8e | 1507 | goto out_ip; |
24142fd8 | 1508 | if (qeth_setup_channel(&card->write, true)) |
76b11f8e | 1509 | goto out_channel; |
24142fd8 JW |
1510 | if (qeth_setup_channel(&card->data, false)) |
1511 | goto out_data; | |
4a71df50 | 1512 | card->options.layer2 = -1; |
6bcac508 MS |
1513 | card->qeth_service_level.seq_print = qeth_core_sl_print; |
1514 | register_service_level(&card->qeth_service_level); | |
4a71df50 | 1515 | return card; |
76b11f8e | 1516 | |
24142fd8 JW |
1517 | out_data: |
1518 | qeth_clean_channel(&card->write); | |
76b11f8e UB |
1519 | out_channel: |
1520 | qeth_clean_channel(&card->read); | |
1521 | out_ip: | |
76b11f8e UB |
1522 | kfree(card); |
1523 | out: | |
1524 | return NULL; | |
4a71df50 FB |
1525 | } |
1526 | ||
4a71df50 FB |
1527 | static int qeth_clear_channel(struct qeth_channel *channel) |
1528 | { | |
1529 | unsigned long flags; | |
1530 | struct qeth_card *card; | |
1531 | int rc; | |
1532 | ||
4a71df50 | 1533 | card = CARD_FROM_CDEV(channel->ccwdev); |
847a50fd | 1534 | QETH_CARD_TEXT(card, 3, "clearch"); |
4a71df50 FB |
1535 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
1536 | rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM); | |
1537 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); | |
1538 | ||
1539 | if (rc) | |
1540 | return rc; | |
1541 | rc = wait_event_interruptible_timeout(card->wait_q, | |
1542 | channel->state == CH_STATE_STOPPED, QETH_TIMEOUT); | |
1543 | if (rc == -ERESTARTSYS) | |
1544 | return rc; | |
1545 | if (channel->state != CH_STATE_STOPPED) | |
1546 | return -ETIME; | |
1547 | channel->state = CH_STATE_DOWN; | |
1548 | return 0; | |
1549 | } | |
1550 | ||
1551 | static int qeth_halt_channel(struct qeth_channel *channel) | |
1552 | { | |
1553 | unsigned long flags; | |
1554 | struct qeth_card *card; | |
1555 | int rc; | |
1556 | ||
4a71df50 | 1557 | card = CARD_FROM_CDEV(channel->ccwdev); |
847a50fd | 1558 | QETH_CARD_TEXT(card, 3, "haltch"); |
4a71df50 FB |
1559 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
1560 | rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM); | |
1561 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); | |
1562 | ||
1563 | if (rc) | |
1564 | return rc; | |
1565 | rc = wait_event_interruptible_timeout(card->wait_q, | |
1566 | channel->state == CH_STATE_HALTED, QETH_TIMEOUT); | |
1567 | if (rc == -ERESTARTSYS) | |
1568 | return rc; | |
1569 | if (channel->state != CH_STATE_HALTED) | |
1570 | return -ETIME; | |
1571 | return 0; | |
1572 | } | |
1573 | ||
1574 | static int qeth_halt_channels(struct qeth_card *card) | |
1575 | { | |
1576 | int rc1 = 0, rc2 = 0, rc3 = 0; | |
1577 | ||
847a50fd | 1578 | QETH_CARD_TEXT(card, 3, "haltchs"); |
4a71df50 FB |
1579 | rc1 = qeth_halt_channel(&card->read); |
1580 | rc2 = qeth_halt_channel(&card->write); | |
1581 | rc3 = qeth_halt_channel(&card->data); | |
1582 | if (rc1) | |
1583 | return rc1; | |
1584 | if (rc2) | |
1585 | return rc2; | |
1586 | return rc3; | |
1587 | } | |
1588 | ||
1589 | static int qeth_clear_channels(struct qeth_card *card) | |
1590 | { | |
1591 | int rc1 = 0, rc2 = 0, rc3 = 0; | |
1592 | ||
847a50fd | 1593 | QETH_CARD_TEXT(card, 3, "clearchs"); |
4a71df50 FB |
1594 | rc1 = qeth_clear_channel(&card->read); |
1595 | rc2 = qeth_clear_channel(&card->write); | |
1596 | rc3 = qeth_clear_channel(&card->data); | |
1597 | if (rc1) | |
1598 | return rc1; | |
1599 | if (rc2) | |
1600 | return rc2; | |
1601 | return rc3; | |
1602 | } | |
1603 | ||
1604 | static int qeth_clear_halt_card(struct qeth_card *card, int halt) | |
1605 | { | |
1606 | int rc = 0; | |
1607 | ||
847a50fd | 1608 | QETH_CARD_TEXT(card, 3, "clhacrd"); |
4a71df50 FB |
1609 | |
1610 | if (halt) | |
1611 | rc = qeth_halt_channels(card); | |
1612 | if (rc) | |
1613 | return rc; | |
1614 | return qeth_clear_channels(card); | |
1615 | } | |
1616 | ||
1617 | int qeth_qdio_clear_card(struct qeth_card *card, int use_halt) | |
1618 | { | |
1619 | int rc = 0; | |
1620 | ||
847a50fd | 1621 | QETH_CARD_TEXT(card, 3, "qdioclr"); |
4a71df50 FB |
1622 | switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED, |
1623 | QETH_QDIO_CLEANING)) { | |
1624 | case QETH_QDIO_ESTABLISHED: | |
1625 | if (card->info.type == QETH_CARD_TYPE_IQD) | |
cc961d40 | 1626 | rc = qdio_shutdown(CARD_DDEV(card), |
4a71df50 FB |
1627 | QDIO_FLAG_CLEANUP_USING_HALT); |
1628 | else | |
cc961d40 | 1629 | rc = qdio_shutdown(CARD_DDEV(card), |
4a71df50 FB |
1630 | QDIO_FLAG_CLEANUP_USING_CLEAR); |
1631 | if (rc) | |
847a50fd | 1632 | QETH_CARD_TEXT_(card, 3, "1err%d", rc); |
4a71df50 FB |
1633 | atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); |
1634 | break; | |
1635 | case QETH_QDIO_CLEANING: | |
1636 | return rc; | |
1637 | default: | |
1638 | break; | |
1639 | } | |
1640 | rc = qeth_clear_halt_card(card, use_halt); | |
1641 | if (rc) | |
847a50fd | 1642 | QETH_CARD_TEXT_(card, 3, "2err%d", rc); |
4a71df50 FB |
1643 | card->state = CARD_STATE_DOWN; |
1644 | return rc; | |
1645 | } | |
1646 | EXPORT_SYMBOL_GPL(qeth_qdio_clear_card); | |
1647 | ||
1648 | static int qeth_read_conf_data(struct qeth_card *card, void **buffer, | |
1649 | int *length) | |
1650 | { | |
1651 | struct ciw *ciw; | |
1652 | char *rcd_buf; | |
1653 | int ret; | |
1654 | struct qeth_channel *channel = &card->data; | |
1655 | unsigned long flags; | |
1656 | ||
1657 | /* | |
1658 | * scan for RCD command in extended SenseID data | |
1659 | */ | |
1660 | ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD); | |
1661 | if (!ciw || ciw->cmd == 0) | |
1662 | return -EOPNOTSUPP; | |
1663 | rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA); | |
1664 | if (!rcd_buf) | |
1665 | return -ENOMEM; | |
1666 | ||
f15cdaf2 | 1667 | qeth_setup_ccw(channel->ccw, ciw->cmd, ciw->count, rcd_buf); |
4a71df50 FB |
1668 | channel->state = CH_STATE_RCD; |
1669 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); | |
f15cdaf2 | 1670 | ret = ccw_device_start_timeout(channel->ccwdev, channel->ccw, |
4a71df50 FB |
1671 | QETH_RCD_PARM, LPM_ANYPATH, 0, |
1672 | QETH_RCD_TIMEOUT); | |
1673 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); | |
1674 | if (!ret) | |
1675 | wait_event(card->wait_q, | |
1676 | (channel->state == CH_STATE_RCD_DONE || | |
1677 | channel->state == CH_STATE_DOWN)); | |
1678 | if (channel->state == CH_STATE_DOWN) | |
1679 | ret = -EIO; | |
1680 | else | |
1681 | channel->state = CH_STATE_DOWN; | |
1682 | if (ret) { | |
1683 | kfree(rcd_buf); | |
1684 | *buffer = NULL; | |
1685 | *length = 0; | |
1686 | } else { | |
1687 | *length = ciw->count; | |
1688 | *buffer = rcd_buf; | |
1689 | } | |
1690 | return ret; | |
1691 | } | |
1692 | ||
a60389ab | 1693 | static void qeth_configure_unitaddr(struct qeth_card *card, char *prcd) |
4a71df50 | 1694 | { |
a60389ab | 1695 | QETH_DBF_TEXT(SETUP, 2, "cfgunit"); |
4a71df50 FB |
1696 | card->info.chpid = prcd[30]; |
1697 | card->info.unit_addr2 = prcd[31]; | |
1698 | card->info.cula = prcd[63]; | |
1699 | card->info.guestlan = ((prcd[0x10] == _ascebc['V']) && | |
1700 | (prcd[0x11] == _ascebc['M'])); | |
a60389ab EL |
1701 | } |
1702 | ||
615dff22 JW |
1703 | static enum qeth_discipline_id qeth_vm_detect_layer(struct qeth_card *card) |
1704 | { | |
1705 | enum qeth_discipline_id disc = QETH_DISCIPLINE_UNDETERMINED; | |
1706 | struct diag26c_vnic_resp *response = NULL; | |
1707 | struct diag26c_vnic_req *request = NULL; | |
1708 | struct ccw_dev_id id; | |
1709 | char userid[80]; | |
1710 | int rc = 0; | |
1711 | ||
1712 | QETH_DBF_TEXT(SETUP, 2, "vmlayer"); | |
1713 | ||
1714 | cpcmd("QUERY USERID", userid, sizeof(userid), &rc); | |
1715 | if (rc) | |
1716 | goto out; | |
1717 | ||
1718 | request = kzalloc(sizeof(*request), GFP_KERNEL | GFP_DMA); | |
1719 | response = kzalloc(sizeof(*response), GFP_KERNEL | GFP_DMA); | |
1720 | if (!request || !response) { | |
1721 | rc = -ENOMEM; | |
1722 | goto out; | |
1723 | } | |
1724 | ||
1725 | ccw_device_get_id(CARD_RDEV(card), &id); | |
1726 | request->resp_buf_len = sizeof(*response); | |
1727 | request->resp_version = DIAG26C_VERSION6_VM65918; | |
1728 | request->req_format = DIAG26C_VNIC_INFO; | |
1729 | ASCEBC(userid, 8); | |
1730 | memcpy(&request->sys_name, userid, 8); | |
1731 | request->devno = id.devno; | |
1732 | ||
1733 | QETH_DBF_HEX(CTRL, 2, request, sizeof(*request)); | |
1734 | rc = diag26c(request, response, DIAG26C_PORT_VNIC); | |
1735 | QETH_DBF_HEX(CTRL, 2, request, sizeof(*request)); | |
1736 | if (rc) | |
1737 | goto out; | |
1738 | QETH_DBF_HEX(CTRL, 2, response, sizeof(*response)); | |
1739 | ||
1740 | if (request->resp_buf_len < sizeof(*response) || | |
1741 | response->version != request->resp_version) { | |
1742 | rc = -EIO; | |
1743 | goto out; | |
1744 | } | |
1745 | ||
1746 | if (response->protocol == VNIC_INFO_PROT_L2) | |
1747 | disc = QETH_DISCIPLINE_LAYER2; | |
1748 | else if (response->protocol == VNIC_INFO_PROT_L3) | |
1749 | disc = QETH_DISCIPLINE_LAYER3; | |
1750 | ||
1751 | out: | |
1752 | kfree(response); | |
1753 | kfree(request); | |
1754 | if (rc) | |
1755 | QETH_DBF_TEXT_(SETUP, 2, "err%x", rc); | |
1756 | return disc; | |
1757 | } | |
1758 | ||
c70eb09d JW |
1759 | /* Determine whether the device requires a specific layer discipline */ |
1760 | static enum qeth_discipline_id qeth_enforce_discipline(struct qeth_card *card) | |
1761 | { | |
615dff22 JW |
1762 | enum qeth_discipline_id disc = QETH_DISCIPLINE_UNDETERMINED; |
1763 | ||
c70eb09d | 1764 | if (card->info.type == QETH_CARD_TYPE_OSM || |
615dff22 JW |
1765 | card->info.type == QETH_CARD_TYPE_OSN) |
1766 | disc = QETH_DISCIPLINE_LAYER2; | |
1767 | else if (card->info.guestlan) | |
1768 | disc = (card->info.type == QETH_CARD_TYPE_IQD) ? | |
1769 | QETH_DISCIPLINE_LAYER3 : | |
1770 | qeth_vm_detect_layer(card); | |
1771 | ||
1772 | switch (disc) { | |
1773 | case QETH_DISCIPLINE_LAYER2: | |
c70eb09d | 1774 | QETH_DBF_TEXT(SETUP, 3, "force l2"); |
615dff22 JW |
1775 | break; |
1776 | case QETH_DISCIPLINE_LAYER3: | |
c70eb09d | 1777 | QETH_DBF_TEXT(SETUP, 3, "force l3"); |
615dff22 JW |
1778 | break; |
1779 | default: | |
1780 | QETH_DBF_TEXT(SETUP, 3, "force no"); | |
c70eb09d JW |
1781 | } |
1782 | ||
615dff22 | 1783 | return disc; |
c70eb09d JW |
1784 | } |
1785 | ||
a60389ab EL |
1786 | static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd) |
1787 | { | |
1788 | QETH_DBF_TEXT(SETUP, 2, "cfgblkt"); | |
1789 | ||
e6e056ba | 1790 | if (prcd[74] == 0xF0 && prcd[75] == 0xF0 && |
a0c98523 | 1791 | prcd[76] >= 0xF1 && prcd[76] <= 0xF4) { |
a60389ab EL |
1792 | card->info.blkt.time_total = 0; |
1793 | card->info.blkt.inter_packet = 0; | |
1794 | card->info.blkt.inter_packet_jumbo = 0; | |
a0c98523 UB |
1795 | } else { |
1796 | card->info.blkt.time_total = 250; | |
1797 | card->info.blkt.inter_packet = 5; | |
1798 | card->info.blkt.inter_packet_jumbo = 15; | |
a60389ab | 1799 | } |
4a71df50 FB |
1800 | } |
1801 | ||
1802 | static void qeth_init_tokens(struct qeth_card *card) | |
1803 | { | |
1804 | card->token.issuer_rm_w = 0x00010103UL; | |
1805 | card->token.cm_filter_w = 0x00010108UL; | |
1806 | card->token.cm_connection_w = 0x0001010aUL; | |
1807 | card->token.ulp_filter_w = 0x0001010bUL; | |
1808 | card->token.ulp_connection_w = 0x0001010dUL; | |
1809 | } | |
1810 | ||
1811 | static void qeth_init_func_level(struct qeth_card *card) | |
1812 | { | |
5113fec0 UB |
1813 | switch (card->info.type) { |
1814 | case QETH_CARD_TYPE_IQD: | |
6298263a | 1815 | card->info.func_level = QETH_IDX_FUNC_LEVEL_IQD; |
5113fec0 UB |
1816 | break; |
1817 | case QETH_CARD_TYPE_OSD: | |
0132951e | 1818 | case QETH_CARD_TYPE_OSN: |
5113fec0 UB |
1819 | card->info.func_level = QETH_IDX_FUNC_LEVEL_OSD; |
1820 | break; | |
1821 | default: | |
1822 | break; | |
4a71df50 FB |
1823 | } |
1824 | } | |
1825 | ||
4a71df50 FB |
1826 | static int qeth_idx_activate_get_answer(struct qeth_channel *channel, |
1827 | void (*idx_reply_cb)(struct qeth_channel *, | |
1828 | struct qeth_cmd_buffer *)) | |
1829 | { | |
1830 | struct qeth_cmd_buffer *iob; | |
1831 | unsigned long flags; | |
1832 | int rc; | |
1833 | struct qeth_card *card; | |
1834 | ||
d11ba0c4 | 1835 | QETH_DBF_TEXT(SETUP, 2, "idxanswr"); |
4a71df50 FB |
1836 | card = CARD_FROM_CDEV(channel->ccwdev); |
1837 | iob = qeth_get_buffer(channel); | |
1aec42bc TR |
1838 | if (!iob) |
1839 | return -ENOMEM; | |
4a71df50 | 1840 | iob->callback = idx_reply_cb; |
f15cdaf2 | 1841 | qeth_setup_ccw(channel->ccw, CCW_CMD_READ, QETH_BUFSIZE, iob->data); |
4a71df50 FB |
1842 | |
1843 | wait_event(card->wait_q, | |
1844 | atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); | |
d11ba0c4 | 1845 | QETH_DBF_TEXT(SETUP, 6, "noirqpnd"); |
4a71df50 | 1846 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
f15cdaf2 | 1847 | rc = ccw_device_start_timeout(channel->ccwdev, channel->ccw, |
db71bbbd | 1848 | (addr_t) iob, 0, 0, QETH_TIMEOUT); |
4a71df50 FB |
1849 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); |
1850 | ||
1851 | if (rc) { | |
14cc21b6 | 1852 | QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc); |
d11ba0c4 | 1853 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
4a71df50 FB |
1854 | atomic_set(&channel->irq_pending, 0); |
1855 | wake_up(&card->wait_q); | |
1856 | return rc; | |
1857 | } | |
1858 | rc = wait_event_interruptible_timeout(card->wait_q, | |
1859 | channel->state == CH_STATE_UP, QETH_TIMEOUT); | |
1860 | if (rc == -ERESTARTSYS) | |
1861 | return rc; | |
1862 | if (channel->state != CH_STATE_UP) { | |
1863 | rc = -ETIME; | |
d11ba0c4 | 1864 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
4a71df50 FB |
1865 | } else |
1866 | rc = 0; | |
1867 | return rc; | |
1868 | } | |
1869 | ||
1870 | static int qeth_idx_activate_channel(struct qeth_channel *channel, | |
1871 | void (*idx_reply_cb)(struct qeth_channel *, | |
1872 | struct qeth_cmd_buffer *)) | |
1873 | { | |
1874 | struct qeth_card *card; | |
1875 | struct qeth_cmd_buffer *iob; | |
1876 | unsigned long flags; | |
1877 | __u16 temp; | |
1878 | __u8 tmp; | |
1879 | int rc; | |
f06f6f32 | 1880 | struct ccw_dev_id temp_devid; |
4a71df50 FB |
1881 | |
1882 | card = CARD_FROM_CDEV(channel->ccwdev); | |
1883 | ||
d11ba0c4 | 1884 | QETH_DBF_TEXT(SETUP, 2, "idxactch"); |
4a71df50 FB |
1885 | |
1886 | iob = qeth_get_buffer(channel); | |
1aec42bc TR |
1887 | if (!iob) |
1888 | return -ENOMEM; | |
4a71df50 | 1889 | iob->callback = idx_reply_cb; |
f15cdaf2 | 1890 | qeth_setup_ccw(channel->ccw, CCW_CMD_WRITE, IDX_ACTIVATE_SIZE, |
45ca2fd6 | 1891 | iob->data); |
4a71df50 FB |
1892 | if (channel == &card->write) { |
1893 | memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE); | |
1894 | memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), | |
1895 | &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); | |
1896 | card->seqno.trans_hdr++; | |
1897 | } else { | |
1898 | memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE); | |
1899 | memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), | |
1900 | &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); | |
1901 | } | |
92d27209 | 1902 | tmp = ((u8)card->dev->dev_port) | 0x80; |
4a71df50 FB |
1903 | memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1); |
1904 | memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), | |
1905 | &card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH); | |
1906 | memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data), | |
1907 | &card->info.func_level, sizeof(__u16)); | |
f06f6f32 CH |
1908 | ccw_device_get_id(CARD_DDEV(card), &temp_devid); |
1909 | memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp_devid.devno, 2); | |
4a71df50 FB |
1910 | temp = (card->info.cula << 8) + card->info.unit_addr2; |
1911 | memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2); | |
1912 | ||
1913 | wait_event(card->wait_q, | |
1914 | atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); | |
d11ba0c4 | 1915 | QETH_DBF_TEXT(SETUP, 6, "noirqpnd"); |
4a71df50 | 1916 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
f15cdaf2 | 1917 | rc = ccw_device_start_timeout(channel->ccwdev, channel->ccw, |
db71bbbd | 1918 | (addr_t) iob, 0, 0, QETH_TIMEOUT); |
4a71df50 FB |
1919 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); |
1920 | ||
1921 | if (rc) { | |
14cc21b6 FB |
1922 | QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n", |
1923 | rc); | |
d11ba0c4 | 1924 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
1925 | atomic_set(&channel->irq_pending, 0); |
1926 | wake_up(&card->wait_q); | |
1927 | return rc; | |
1928 | } | |
1929 | rc = wait_event_interruptible_timeout(card->wait_q, | |
1930 | channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT); | |
1931 | if (rc == -ERESTARTSYS) | |
1932 | return rc; | |
1933 | if (channel->state != CH_STATE_ACTIVATING) { | |
74eacdb9 FB |
1934 | dev_warn(&channel->ccwdev->dev, "The qeth device driver" |
1935 | " failed to recover an error on the device\n"); | |
1936 | QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n", | |
1937 | dev_name(&channel->ccwdev->dev)); | |
d11ba0c4 | 1938 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME); |
4a71df50 FB |
1939 | return -ETIME; |
1940 | } | |
1941 | return qeth_idx_activate_get_answer(channel, idx_reply_cb); | |
1942 | } | |
1943 | ||
1944 | static int qeth_peer_func_level(int level) | |
1945 | { | |
1946 | if ((level & 0xff) == 8) | |
1947 | return (level & 0xff) + 0x400; | |
1948 | if (((level >> 8) & 3) == 1) | |
1949 | return (level & 0xff) + 0x200; | |
1950 | return level; | |
1951 | } | |
1952 | ||
1953 | static void qeth_idx_write_cb(struct qeth_channel *channel, | |
1954 | struct qeth_cmd_buffer *iob) | |
1955 | { | |
1956 | struct qeth_card *card; | |
1957 | __u16 temp; | |
1958 | ||
d11ba0c4 | 1959 | QETH_DBF_TEXT(SETUP , 2, "idxwrcb"); |
4a71df50 FB |
1960 | |
1961 | if (channel->state == CH_STATE_DOWN) { | |
1962 | channel->state = CH_STATE_ACTIVATING; | |
1963 | goto out; | |
1964 | } | |
1965 | card = CARD_FROM_CDEV(channel->ccwdev); | |
1966 | ||
1967 | if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { | |
5113fec0 | 1968 | if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == QETH_IDX_ACT_ERR_EXCL) |
750b1625 | 1969 | dev_err(&channel->ccwdev->dev, |
74eacdb9 FB |
1970 | "The adapter is used exclusively by another " |
1971 | "host\n"); | |
4a71df50 | 1972 | else |
74eacdb9 FB |
1973 | QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel:" |
1974 | " negative reply\n", | |
750b1625 | 1975 | dev_name(&channel->ccwdev->dev)); |
4a71df50 FB |
1976 | goto out; |
1977 | } | |
1978 | memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); | |
1979 | if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) { | |
74eacdb9 FB |
1980 | QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel: " |
1981 | "function level mismatch (sent: 0x%x, received: " | |
750b1625 | 1982 | "0x%x)\n", dev_name(&channel->ccwdev->dev), |
74eacdb9 | 1983 | card->info.func_level, temp); |
4a71df50 FB |
1984 | goto out; |
1985 | } | |
1986 | channel->state = CH_STATE_UP; | |
1987 | out: | |
1988 | qeth_release_buffer(channel, iob); | |
1989 | } | |
1990 | ||
1991 | static void qeth_idx_read_cb(struct qeth_channel *channel, | |
1992 | struct qeth_cmd_buffer *iob) | |
1993 | { | |
1994 | struct qeth_card *card; | |
1995 | __u16 temp; | |
1996 | ||
d11ba0c4 | 1997 | QETH_DBF_TEXT(SETUP , 2, "idxrdcb"); |
4a71df50 FB |
1998 | if (channel->state == CH_STATE_DOWN) { |
1999 | channel->state = CH_STATE_ACTIVATING; | |
2000 | goto out; | |
2001 | } | |
2002 | ||
2003 | card = CARD_FROM_CDEV(channel->ccwdev); | |
5113fec0 | 2004 | if (qeth_check_idx_response(card, iob->data)) |
4a71df50 FB |
2005 | goto out; |
2006 | ||
2007 | if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { | |
5113fec0 UB |
2008 | switch (QETH_IDX_ACT_CAUSE_CODE(iob->data)) { |
2009 | case QETH_IDX_ACT_ERR_EXCL: | |
750b1625 | 2010 | dev_err(&channel->ccwdev->dev, |
74eacdb9 FB |
2011 | "The adapter is used exclusively by another " |
2012 | "host\n"); | |
5113fec0 UB |
2013 | break; |
2014 | case QETH_IDX_ACT_ERR_AUTH: | |
01fc3e86 | 2015 | case QETH_IDX_ACT_ERR_AUTH_USER: |
750b1625 | 2016 | dev_err(&channel->ccwdev->dev, |
5113fec0 | 2017 | "Setting the device online failed because of " |
01fc3e86 | 2018 | "insufficient authorization\n"); |
5113fec0 UB |
2019 | break; |
2020 | default: | |
74eacdb9 FB |
2021 | QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel:" |
2022 | " negative reply\n", | |
750b1625 | 2023 | dev_name(&channel->ccwdev->dev)); |
5113fec0 | 2024 | } |
01fc3e86 UB |
2025 | QETH_CARD_TEXT_(card, 2, "idxread%c", |
2026 | QETH_IDX_ACT_CAUSE_CODE(iob->data)); | |
4a71df50 FB |
2027 | goto out; |
2028 | } | |
2029 | ||
4a71df50 FB |
2030 | memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); |
2031 | if (temp != qeth_peer_func_level(card->info.func_level)) { | |
74eacdb9 FB |
2032 | QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel: function " |
2033 | "level mismatch (sent: 0x%x, received: 0x%x)\n", | |
750b1625 | 2034 | dev_name(&channel->ccwdev->dev), |
74eacdb9 | 2035 | card->info.func_level, temp); |
4a71df50 FB |
2036 | goto out; |
2037 | } | |
2038 | memcpy(&card->token.issuer_rm_r, | |
2039 | QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), | |
2040 | QETH_MPC_TOKEN_LENGTH); | |
2041 | memcpy(&card->info.mcl_level[0], | |
2042 | QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH); | |
2043 | channel->state = CH_STATE_UP; | |
2044 | out: | |
2045 | qeth_release_buffer(channel, iob); | |
2046 | } | |
2047 | ||
2048 | void qeth_prepare_control_data(struct qeth_card *card, int len, | |
2049 | struct qeth_cmd_buffer *iob) | |
2050 | { | |
f15cdaf2 | 2051 | qeth_setup_ccw(iob->channel->ccw, CCW_CMD_WRITE, len, iob->data); |
4a71df50 FB |
2052 | iob->callback = qeth_release_buffer; |
2053 | ||
2054 | memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), | |
2055 | &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); | |
2056 | card->seqno.trans_hdr++; | |
2057 | memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data), | |
2058 | &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH); | |
2059 | card->seqno.pdu_hdr++; | |
2060 | memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data), | |
2061 | &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH); | |
d11ba0c4 | 2062 | QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN); |
4a71df50 FB |
2063 | } |
2064 | EXPORT_SYMBOL_GPL(qeth_prepare_control_data); | |
2065 | ||
efbbc1d5 EC |
2066 | /** |
2067 | * qeth_send_control_data() - send control command to the card | |
2068 | * @card: qeth_card structure pointer | |
2069 | * @len: size of the command buffer | |
2070 | * @iob: qeth_cmd_buffer pointer | |
2071 | * @reply_cb: callback function pointer | |
2072 | * @cb_card: pointer to the qeth_card structure | |
2073 | * @cb_reply: pointer to the qeth_reply structure | |
2074 | * @cb_cmd: pointer to the original iob for non-IPA | |
2075 | * commands, or to the qeth_ipa_cmd structure | |
2076 | * for the IPA commands. | |
2077 | * @reply_param: private pointer passed to the callback | |
2078 | * | |
2079 | * Returns the value of the `return_code' field of the response | |
2080 | * block returned from the hardware, or other error indication. | |
2081 | * Value of zero indicates successful execution of the command. | |
2082 | * | |
2083 | * Callback function gets called one or more times, with cb_cmd | |
2084 | * pointing to the response returned by the hardware. Callback | |
2085 | * function must return non-zero if more reply blocks are expected, | |
2086 | * and zero if the last or only reply block is received. Callback | |
2087 | * function can get the value of the reply_param pointer from the | |
2088 | * field 'param' of the structure qeth_reply. | |
2089 | */ | |
2090 | ||
4a71df50 FB |
2091 | int qeth_send_control_data(struct qeth_card *card, int len, |
2092 | struct qeth_cmd_buffer *iob, | |
efbbc1d5 EC |
2093 | int (*reply_cb)(struct qeth_card *cb_card, |
2094 | struct qeth_reply *cb_reply, | |
2095 | unsigned long cb_cmd), | |
4a71df50 FB |
2096 | void *reply_param) |
2097 | { | |
750b1625 | 2098 | struct qeth_channel *channel = iob->channel; |
4a71df50 FB |
2099 | int rc; |
2100 | unsigned long flags; | |
2101 | struct qeth_reply *reply = NULL; | |
7834cd5a | 2102 | unsigned long timeout, event_timeout; |
1c5b2216 | 2103 | struct qeth_ipa_cmd *cmd = NULL; |
4a71df50 | 2104 | |
847a50fd | 2105 | QETH_CARD_TEXT(card, 2, "sendctl"); |
4a71df50 | 2106 | |
908abbb5 | 2107 | if (card->read_or_write_problem) { |
750b1625 | 2108 | qeth_release_buffer(channel, iob); |
908abbb5 UB |
2109 | return -EIO; |
2110 | } | |
4a71df50 FB |
2111 | reply = qeth_alloc_reply(card); |
2112 | if (!reply) { | |
4a71df50 FB |
2113 | return -ENOMEM; |
2114 | } | |
2115 | reply->callback = reply_cb; | |
2116 | reply->param = reply_param; | |
d22ffb5a | 2117 | |
4a71df50 | 2118 | init_waitqueue_head(&reply->wait_q); |
4a71df50 | 2119 | |
750b1625 | 2120 | while (atomic_cmpxchg(&channel->irq_pending, 0, 1)) ; |
4a71df50 | 2121 | |
1c5b2216 JW |
2122 | if (IS_IPA(iob->data)) { |
2123 | cmd = __ipa_cmd(iob); | |
d22ffb5a JW |
2124 | cmd->hdr.seqno = card->seqno.ipa++; |
2125 | reply->seqno = cmd->hdr.seqno; | |
7834cd5a | 2126 | event_timeout = QETH_IPA_TIMEOUT; |
1c5b2216 | 2127 | } else { |
d22ffb5a | 2128 | reply->seqno = QETH_IDX_COMMAND_SEQNO; |
7834cd5a | 2129 | event_timeout = QETH_TIMEOUT; |
1c5b2216 | 2130 | } |
d22ffb5a JW |
2131 | qeth_prepare_control_data(card, len, iob); |
2132 | ||
2133 | spin_lock_irqsave(&card->lock, flags); | |
2134 | list_add_tail(&reply->list, &card->cmd_waiter_list); | |
2135 | spin_unlock_irqrestore(&card->lock, flags); | |
1c5b2216 | 2136 | |
7834cd5a | 2137 | timeout = jiffies + event_timeout; |
4a71df50 | 2138 | |
847a50fd | 2139 | QETH_CARD_TEXT(card, 6, "noirqpnd"); |
750b1625 | 2140 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
f15cdaf2 | 2141 | rc = ccw_device_start_timeout(channel->ccwdev, channel->ccw, |
db71bbbd | 2142 | (addr_t) iob, 0, 0, event_timeout); |
750b1625 | 2143 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); |
4a71df50 | 2144 | if (rc) { |
74eacdb9 FB |
2145 | QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: " |
2146 | "ccw_device_start rc = %i\n", | |
750b1625 | 2147 | dev_name(&channel->ccwdev->dev), rc); |
847a50fd | 2148 | QETH_CARD_TEXT_(card, 2, " err%d", rc); |
4a71df50 FB |
2149 | spin_lock_irqsave(&card->lock, flags); |
2150 | list_del_init(&reply->list); | |
2151 | qeth_put_reply(reply); | |
2152 | spin_unlock_irqrestore(&card->lock, flags); | |
750b1625 JW |
2153 | qeth_release_buffer(channel, iob); |
2154 | atomic_set(&channel->irq_pending, 0); | |
4a71df50 FB |
2155 | wake_up(&card->wait_q); |
2156 | return rc; | |
2157 | } | |
5b54e16f FB |
2158 | |
2159 | /* we have only one long running ipassist, since we can ensure | |
2160 | process context of this command we can sleep */ | |
1c5b2216 JW |
2161 | if (cmd && cmd->hdr.command == IPA_CMD_SETIP && |
2162 | cmd->hdr.prot_version == QETH_PROT_IPV4) { | |
5b54e16f | 2163 | if (!wait_event_timeout(reply->wait_q, |
7834cd5a | 2164 | atomic_read(&reply->received), event_timeout)) |
5b54e16f FB |
2165 | goto time_err; |
2166 | } else { | |
2167 | while (!atomic_read(&reply->received)) { | |
2168 | if (time_after(jiffies, timeout)) | |
2169 | goto time_err; | |
2170 | cpu_relax(); | |
6531084c | 2171 | } |
5b54e16f FB |
2172 | } |
2173 | ||
2174 | rc = reply->rc; | |
2175 | qeth_put_reply(reply); | |
2176 | return rc; | |
2177 | ||
2178 | time_err: | |
70919e23 | 2179 | reply->rc = -ETIME; |
5b54e16f FB |
2180 | spin_lock_irqsave(&reply->card->lock, flags); |
2181 | list_del_init(&reply->list); | |
2182 | spin_unlock_irqrestore(&reply->card->lock, flags); | |
5b54e16f | 2183 | atomic_inc(&reply->received); |
4a71df50 FB |
2184 | rc = reply->rc; |
2185 | qeth_put_reply(reply); | |
2186 | return rc; | |
2187 | } | |
2188 | EXPORT_SYMBOL_GPL(qeth_send_control_data); | |
2189 | ||
2190 | static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply, | |
2191 | unsigned long data) | |
2192 | { | |
2193 | struct qeth_cmd_buffer *iob; | |
2194 | ||
d11ba0c4 | 2195 | QETH_DBF_TEXT(SETUP, 2, "cmenblcb"); |
4a71df50 FB |
2196 | |
2197 | iob = (struct qeth_cmd_buffer *) data; | |
2198 | memcpy(&card->token.cm_filter_r, | |
2199 | QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data), | |
2200 | QETH_MPC_TOKEN_LENGTH); | |
d11ba0c4 | 2201 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
4a71df50 FB |
2202 | return 0; |
2203 | } | |
2204 | ||
2205 | static int qeth_cm_enable(struct qeth_card *card) | |
2206 | { | |
2207 | int rc; | |
2208 | struct qeth_cmd_buffer *iob; | |
2209 | ||
d11ba0c4 | 2210 | QETH_DBF_TEXT(SETUP, 2, "cmenable"); |
4a71df50 FB |
2211 | |
2212 | iob = qeth_wait_for_buffer(&card->write); | |
2213 | memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE); | |
2214 | memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data), | |
2215 | &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); | |
2216 | memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data), | |
2217 | &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH); | |
2218 | ||
2219 | rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob, | |
2220 | qeth_cm_enable_cb, NULL); | |
2221 | return rc; | |
2222 | } | |
2223 | ||
2224 | static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply, | |
2225 | unsigned long data) | |
2226 | { | |
2227 | ||
2228 | struct qeth_cmd_buffer *iob; | |
2229 | ||
d11ba0c4 | 2230 | QETH_DBF_TEXT(SETUP, 2, "cmsetpcb"); |
4a71df50 FB |
2231 | |
2232 | iob = (struct qeth_cmd_buffer *) data; | |
2233 | memcpy(&card->token.cm_connection_r, | |
2234 | QETH_CM_SETUP_RESP_DEST_ADDR(iob->data), | |
2235 | QETH_MPC_TOKEN_LENGTH); | |
d11ba0c4 | 2236 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
4a71df50 FB |
2237 | return 0; |
2238 | } | |
2239 | ||
2240 | static int qeth_cm_setup(struct qeth_card *card) | |
2241 | { | |
2242 | int rc; | |
2243 | struct qeth_cmd_buffer *iob; | |
2244 | ||
d11ba0c4 | 2245 | QETH_DBF_TEXT(SETUP, 2, "cmsetup"); |
4a71df50 FB |
2246 | |
2247 | iob = qeth_wait_for_buffer(&card->write); | |
2248 | memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE); | |
2249 | memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data), | |
2250 | &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); | |
2251 | memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data), | |
2252 | &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH); | |
2253 | memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data), | |
2254 | &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH); | |
2255 | rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob, | |
2256 | qeth_cm_setup_cb, NULL); | |
2257 | return rc; | |
2258 | ||
2259 | } | |
2260 | ||
8ce7a9e0 | 2261 | static int qeth_update_max_mtu(struct qeth_card *card, unsigned int max_mtu) |
4a71df50 | 2262 | { |
8ce7a9e0 JW |
2263 | struct net_device *dev = card->dev; |
2264 | unsigned int new_mtu; | |
2265 | ||
2266 | if (!max_mtu) { | |
2267 | /* IQD needs accurate max MTU to set up its RX buffers: */ | |
2268 | if (IS_IQD(card)) | |
2269 | return -EINVAL; | |
2270 | /* tolerate quirky HW: */ | |
2271 | max_mtu = ETH_MAX_MTU; | |
2272 | } | |
2273 | ||
2274 | rtnl_lock(); | |
2275 | if (IS_IQD(card)) { | |
2276 | /* move any device with default MTU to new max MTU: */ | |
2277 | new_mtu = (dev->mtu == dev->max_mtu) ? max_mtu : dev->mtu; | |
2278 | ||
2279 | /* adjust RX buffer size to new max MTU: */ | |
2280 | card->qdio.in_buf_size = max_mtu + 2 * PAGE_SIZE; | |
2281 | if (dev->max_mtu && dev->max_mtu != max_mtu) | |
2282 | qeth_free_qdio_buffers(card); | |
2283 | } else { | |
2284 | if (dev->mtu) | |
2285 | new_mtu = dev->mtu; | |
2286 | /* default MTUs for first setup: */ | |
2287 | else if (card->options.layer2) | |
2288 | new_mtu = ETH_DATA_LEN; | |
2289 | else | |
2290 | new_mtu = ETH_DATA_LEN - 8; /* allow for LLC + SNAP */ | |
4a71df50 | 2291 | } |
8ce7a9e0 JW |
2292 | |
2293 | dev->max_mtu = max_mtu; | |
2294 | dev->mtu = min(new_mtu, max_mtu); | |
2295 | rtnl_unlock(); | |
2296 | return 0; | |
4a71df50 FB |
2297 | } |
2298 | ||
cef6ff22 | 2299 | static int qeth_get_mtu_outof_framesize(int framesize) |
4a71df50 FB |
2300 | { |
2301 | switch (framesize) { | |
2302 | case 0x4000: | |
2303 | return 8192; | |
2304 | case 0x6000: | |
2305 | return 16384; | |
2306 | case 0xa000: | |
2307 | return 32768; | |
2308 | case 0xffff: | |
2309 | return 57344; | |
2310 | default: | |
2311 | return 0; | |
2312 | } | |
2313 | } | |
2314 | ||
4a71df50 FB |
2315 | static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply, |
2316 | unsigned long data) | |
2317 | { | |
2318 | ||
2319 | __u16 mtu, framesize; | |
2320 | __u16 len; | |
2321 | __u8 link_type; | |
2322 | struct qeth_cmd_buffer *iob; | |
2323 | ||
d11ba0c4 | 2324 | QETH_DBF_TEXT(SETUP, 2, "ulpenacb"); |
4a71df50 FB |
2325 | |
2326 | iob = (struct qeth_cmd_buffer *) data; | |
2327 | memcpy(&card->token.ulp_filter_r, | |
2328 | QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data), | |
2329 | QETH_MPC_TOKEN_LENGTH); | |
9853b97b | 2330 | if (card->info.type == QETH_CARD_TYPE_IQD) { |
4a71df50 FB |
2331 | memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2); |
2332 | mtu = qeth_get_mtu_outof_framesize(framesize); | |
4a71df50 | 2333 | } else { |
8ce7a9e0 | 2334 | mtu = *(__u16 *)QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data); |
4a71df50 | 2335 | } |
8ce7a9e0 | 2336 | *(u16 *)reply->param = mtu; |
4a71df50 FB |
2337 | |
2338 | memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2); | |
2339 | if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) { | |
2340 | memcpy(&link_type, | |
2341 | QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1); | |
2342 | card->info.link_type = link_type; | |
2343 | } else | |
2344 | card->info.link_type = 0; | |
01fc3e86 | 2345 | QETH_DBF_TEXT_(SETUP, 2, "link%d", card->info.link_type); |
d11ba0c4 | 2346 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
4a71df50 FB |
2347 | return 0; |
2348 | } | |
2349 | ||
73657a3e JW |
2350 | static u8 qeth_mpc_select_prot_type(struct qeth_card *card) |
2351 | { | |
2352 | if (IS_OSN(card)) | |
2353 | return QETH_PROT_OSN2; | |
2354 | return (card->options.layer2 == 1) ? QETH_PROT_LAYER2 : QETH_PROT_TCPIP; | |
2355 | } | |
2356 | ||
4a71df50 FB |
2357 | static int qeth_ulp_enable(struct qeth_card *card) |
2358 | { | |
73657a3e | 2359 | u8 prot_type = qeth_mpc_select_prot_type(card); |
4a71df50 | 2360 | struct qeth_cmd_buffer *iob; |
8ce7a9e0 | 2361 | u16 max_mtu; |
73657a3e | 2362 | int rc; |
4a71df50 FB |
2363 | |
2364 | /*FIXME: trace view callbacks*/ | |
d11ba0c4 | 2365 | QETH_DBF_TEXT(SETUP, 2, "ulpenabl"); |
4a71df50 FB |
2366 | |
2367 | iob = qeth_wait_for_buffer(&card->write); | |
2368 | memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE); | |
2369 | ||
92d27209 | 2370 | *(QETH_ULP_ENABLE_LINKNUM(iob->data)) = (u8) card->dev->dev_port; |
4a71df50 FB |
2371 | memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1); |
2372 | memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data), | |
2373 | &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); | |
2374 | memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data), | |
2375 | &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH); | |
4a71df50 | 2376 | rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob, |
8ce7a9e0 JW |
2377 | qeth_ulp_enable_cb, &max_mtu); |
2378 | if (rc) | |
2379 | return rc; | |
2380 | return qeth_update_max_mtu(card, max_mtu); | |
4a71df50 FB |
2381 | } |
2382 | ||
2383 | static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply, | |
2384 | unsigned long data) | |
2385 | { | |
2386 | struct qeth_cmd_buffer *iob; | |
2387 | ||
d11ba0c4 | 2388 | QETH_DBF_TEXT(SETUP, 2, "ulpstpcb"); |
4a71df50 FB |
2389 | |
2390 | iob = (struct qeth_cmd_buffer *) data; | |
2391 | memcpy(&card->token.ulp_connection_r, | |
2392 | QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), | |
2393 | QETH_MPC_TOKEN_LENGTH); | |
65a1f898 UB |
2394 | if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), |
2395 | 3)) { | |
2396 | QETH_DBF_TEXT(SETUP, 2, "olmlimit"); | |
2397 | dev_err(&card->gdev->dev, "A connection could not be " | |
2398 | "established because of an OLM limit\n"); | |
bbb822a8 | 2399 | iob->rc = -EMLINK; |
65a1f898 | 2400 | } |
d11ba0c4 | 2401 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
7bf9bcff | 2402 | return 0; |
4a71df50 FB |
2403 | } |
2404 | ||
2405 | static int qeth_ulp_setup(struct qeth_card *card) | |
2406 | { | |
2407 | int rc; | |
2408 | __u16 temp; | |
2409 | struct qeth_cmd_buffer *iob; | |
2410 | struct ccw_dev_id dev_id; | |
2411 | ||
d11ba0c4 | 2412 | QETH_DBF_TEXT(SETUP, 2, "ulpsetup"); |
4a71df50 FB |
2413 | |
2414 | iob = qeth_wait_for_buffer(&card->write); | |
2415 | memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE); | |
2416 | ||
2417 | memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data), | |
2418 | &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); | |
2419 | memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data), | |
2420 | &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH); | |
2421 | memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data), | |
2422 | &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH); | |
2423 | ||
2424 | ccw_device_get_id(CARD_DDEV(card), &dev_id); | |
2425 | memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2); | |
2426 | temp = (card->info.cula << 8) + card->info.unit_addr2; | |
2427 | memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2); | |
2428 | rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob, | |
2429 | qeth_ulp_setup_cb, NULL); | |
2430 | return rc; | |
2431 | } | |
2432 | ||
0da9581d EL |
2433 | static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *q, int bidx) |
2434 | { | |
0da9581d EL |
2435 | struct qeth_qdio_out_buffer *newbuf; |
2436 | ||
0da9581d | 2437 | newbuf = kmem_cache_zalloc(qeth_qdio_outbuf_cache, GFP_ATOMIC); |
3b346c18 JW |
2438 | if (!newbuf) |
2439 | return -ENOMEM; | |
2440 | ||
d445a4e2 | 2441 | newbuf->buffer = q->qdio_bufs[bidx]; |
0da9581d EL |
2442 | skb_queue_head_init(&newbuf->skb_list); |
2443 | lockdep_set_class(&newbuf->skb_list.lock, &qdio_out_skb_queue_key); | |
2444 | newbuf->q = q; | |
0da9581d EL |
2445 | newbuf->next_pending = q->bufs[bidx]; |
2446 | atomic_set(&newbuf->state, QETH_QDIO_BUF_EMPTY); | |
2447 | q->bufs[bidx] = newbuf; | |
3b346c18 | 2448 | return 0; |
0da9581d EL |
2449 | } |
2450 | ||
d445a4e2 SO |
2451 | static void qeth_free_qdio_out_buf(struct qeth_qdio_out_q *q) |
2452 | { | |
2453 | if (!q) | |
2454 | return; | |
2455 | ||
2456 | qdio_free_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q); | |
2457 | kfree(q); | |
2458 | } | |
2459 | ||
2460 | static struct qeth_qdio_out_q *qeth_alloc_qdio_out_buf(void) | |
2461 | { | |
2462 | struct qeth_qdio_out_q *q = kzalloc(sizeof(*q), GFP_KERNEL); | |
2463 | ||
2464 | if (!q) | |
2465 | return NULL; | |
2466 | ||
2467 | if (qdio_alloc_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q)) { | |
2468 | kfree(q); | |
2469 | return NULL; | |
2470 | } | |
2471 | return q; | |
2472 | } | |
0da9581d | 2473 | |
4a71df50 FB |
2474 | static int qeth_alloc_qdio_buffers(struct qeth_card *card) |
2475 | { | |
2476 | int i, j; | |
2477 | ||
d11ba0c4 | 2478 | QETH_DBF_TEXT(SETUP, 2, "allcqdbf"); |
4a71df50 FB |
2479 | |
2480 | if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED, | |
2481 | QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED) | |
2482 | return 0; | |
2483 | ||
4601ba6c SO |
2484 | QETH_DBF_TEXT(SETUP, 2, "inq"); |
2485 | card->qdio.in_q = qeth_alloc_qdio_queue(); | |
4a71df50 FB |
2486 | if (!card->qdio.in_q) |
2487 | goto out_nomem; | |
4601ba6c | 2488 | |
4a71df50 FB |
2489 | /* inbound buffer pool */ |
2490 | if (qeth_alloc_buffer_pool(card)) | |
2491 | goto out_freeinq; | |
0da9581d | 2492 | |
4a71df50 FB |
2493 | /* outbound */ |
2494 | card->qdio.out_qs = | |
6396bb22 KC |
2495 | kcalloc(card->qdio.no_out_queues, |
2496 | sizeof(struct qeth_qdio_out_q *), | |
2497 | GFP_KERNEL); | |
4a71df50 FB |
2498 | if (!card->qdio.out_qs) |
2499 | goto out_freepool; | |
2500 | for (i = 0; i < card->qdio.no_out_queues; ++i) { | |
d445a4e2 | 2501 | card->qdio.out_qs[i] = qeth_alloc_qdio_out_buf(); |
4a71df50 FB |
2502 | if (!card->qdio.out_qs[i]) |
2503 | goto out_freeoutq; | |
d11ba0c4 PT |
2504 | QETH_DBF_TEXT_(SETUP, 2, "outq %i", i); |
2505 | QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *)); | |
4a71df50 FB |
2506 | card->qdio.out_qs[i]->queue_no = i; |
2507 | /* give outbound qeth_qdio_buffers their qdio_buffers */ | |
2508 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { | |
18af5c17 | 2509 | WARN_ON(card->qdio.out_qs[i]->bufs[j] != NULL); |
0da9581d EL |
2510 | if (qeth_init_qdio_out_buf(card->qdio.out_qs[i], j)) |
2511 | goto out_freeoutqbufs; | |
4a71df50 FB |
2512 | } |
2513 | } | |
0da9581d EL |
2514 | |
2515 | /* completion */ | |
2516 | if (qeth_alloc_cq(card)) | |
2517 | goto out_freeoutq; | |
2518 | ||
4a71df50 FB |
2519 | return 0; |
2520 | ||
0da9581d EL |
2521 | out_freeoutqbufs: |
2522 | while (j > 0) { | |
2523 | --j; | |
2524 | kmem_cache_free(qeth_qdio_outbuf_cache, | |
2525 | card->qdio.out_qs[i]->bufs[j]); | |
2526 | card->qdio.out_qs[i]->bufs[j] = NULL; | |
2527 | } | |
4a71df50 | 2528 | out_freeoutq: |
0da9581d | 2529 | while (i > 0) { |
d445a4e2 | 2530 | qeth_free_qdio_out_buf(card->qdio.out_qs[--i]); |
0da9581d EL |
2531 | qeth_clear_outq_buffers(card->qdio.out_qs[i], 1); |
2532 | } | |
4a71df50 FB |
2533 | kfree(card->qdio.out_qs); |
2534 | card->qdio.out_qs = NULL; | |
2535 | out_freepool: | |
2536 | qeth_free_buffer_pool(card); | |
2537 | out_freeinq: | |
4601ba6c | 2538 | qeth_free_qdio_queue(card->qdio.in_q); |
4a71df50 FB |
2539 | card->qdio.in_q = NULL; |
2540 | out_nomem: | |
2541 | atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); | |
2542 | return -ENOMEM; | |
2543 | } | |
2544 | ||
d445a4e2 SO |
2545 | static void qeth_free_qdio_buffers(struct qeth_card *card) |
2546 | { | |
2547 | int i, j; | |
2548 | ||
2549 | if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) == | |
2550 | QETH_QDIO_UNINITIALIZED) | |
2551 | return; | |
2552 | ||
2553 | qeth_free_cq(card); | |
2554 | cancel_delayed_work_sync(&card->buffer_reclaim_work); | |
2555 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { | |
2556 | if (card->qdio.in_q->bufs[j].rx_skb) | |
2557 | dev_kfree_skb_any(card->qdio.in_q->bufs[j].rx_skb); | |
2558 | } | |
2559 | qeth_free_qdio_queue(card->qdio.in_q); | |
2560 | card->qdio.in_q = NULL; | |
2561 | /* inbound buffer pool */ | |
2562 | qeth_free_buffer_pool(card); | |
2563 | /* free outbound qdio_qs */ | |
2564 | if (card->qdio.out_qs) { | |
2565 | for (i = 0; i < card->qdio.no_out_queues; ++i) { | |
2566 | qeth_clear_outq_buffers(card->qdio.out_qs[i], 1); | |
2567 | qeth_free_qdio_out_buf(card->qdio.out_qs[i]); | |
2568 | } | |
2569 | kfree(card->qdio.out_qs); | |
2570 | card->qdio.out_qs = NULL; | |
2571 | } | |
2572 | } | |
2573 | ||
4a71df50 FB |
2574 | static void qeth_create_qib_param_field(struct qeth_card *card, |
2575 | char *param_field) | |
2576 | { | |
2577 | ||
2578 | param_field[0] = _ascebc['P']; | |
2579 | param_field[1] = _ascebc['C']; | |
2580 | param_field[2] = _ascebc['I']; | |
2581 | param_field[3] = _ascebc['T']; | |
2582 | *((unsigned int *) (¶m_field[4])) = QETH_PCI_THRESHOLD_A(card); | |
2583 | *((unsigned int *) (¶m_field[8])) = QETH_PCI_THRESHOLD_B(card); | |
2584 | *((unsigned int *) (¶m_field[12])) = QETH_PCI_TIMER_VALUE(card); | |
2585 | } | |
2586 | ||
2587 | static void qeth_create_qib_param_field_blkt(struct qeth_card *card, | |
2588 | char *param_field) | |
2589 | { | |
2590 | param_field[16] = _ascebc['B']; | |
2591 | param_field[17] = _ascebc['L']; | |
2592 | param_field[18] = _ascebc['K']; | |
2593 | param_field[19] = _ascebc['T']; | |
2594 | *((unsigned int *) (¶m_field[20])) = card->info.blkt.time_total; | |
2595 | *((unsigned int *) (¶m_field[24])) = card->info.blkt.inter_packet; | |
2596 | *((unsigned int *) (¶m_field[28])) = | |
2597 | card->info.blkt.inter_packet_jumbo; | |
2598 | } | |
2599 | ||
2600 | static int qeth_qdio_activate(struct qeth_card *card) | |
2601 | { | |
d11ba0c4 | 2602 | QETH_DBF_TEXT(SETUP, 3, "qdioact"); |
779e6e1c | 2603 | return qdio_activate(CARD_DDEV(card)); |
4a71df50 FB |
2604 | } |
2605 | ||
2606 | static int qeth_dm_act(struct qeth_card *card) | |
2607 | { | |
2608 | int rc; | |
2609 | struct qeth_cmd_buffer *iob; | |
2610 | ||
d11ba0c4 | 2611 | QETH_DBF_TEXT(SETUP, 2, "dmact"); |
4a71df50 FB |
2612 | |
2613 | iob = qeth_wait_for_buffer(&card->write); | |
2614 | memcpy(iob->data, DM_ACT, DM_ACT_SIZE); | |
2615 | ||
2616 | memcpy(QETH_DM_ACT_DEST_ADDR(iob->data), | |
2617 | &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); | |
2618 | memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data), | |
2619 | &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); | |
2620 | rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL); | |
2621 | return rc; | |
2622 | } | |
2623 | ||
2624 | static int qeth_mpc_initialize(struct qeth_card *card) | |
2625 | { | |
2626 | int rc; | |
2627 | ||
d11ba0c4 | 2628 | QETH_DBF_TEXT(SETUP, 2, "mpcinit"); |
4a71df50 FB |
2629 | |
2630 | rc = qeth_issue_next_read(card); | |
2631 | if (rc) { | |
d11ba0c4 | 2632 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
2633 | return rc; |
2634 | } | |
2635 | rc = qeth_cm_enable(card); | |
2636 | if (rc) { | |
d11ba0c4 | 2637 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
4a71df50 FB |
2638 | goto out_qdio; |
2639 | } | |
2640 | rc = qeth_cm_setup(card); | |
2641 | if (rc) { | |
d11ba0c4 | 2642 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
4a71df50 FB |
2643 | goto out_qdio; |
2644 | } | |
2645 | rc = qeth_ulp_enable(card); | |
2646 | if (rc) { | |
d11ba0c4 | 2647 | QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); |
4a71df50 FB |
2648 | goto out_qdio; |
2649 | } | |
2650 | rc = qeth_ulp_setup(card); | |
2651 | if (rc) { | |
d11ba0c4 | 2652 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); |
4a71df50 FB |
2653 | goto out_qdio; |
2654 | } | |
2655 | rc = qeth_alloc_qdio_buffers(card); | |
2656 | if (rc) { | |
d11ba0c4 | 2657 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); |
4a71df50 FB |
2658 | goto out_qdio; |
2659 | } | |
2660 | rc = qeth_qdio_establish(card); | |
2661 | if (rc) { | |
d11ba0c4 | 2662 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); |
4a71df50 FB |
2663 | qeth_free_qdio_buffers(card); |
2664 | goto out_qdio; | |
2665 | } | |
2666 | rc = qeth_qdio_activate(card); | |
2667 | if (rc) { | |
d11ba0c4 | 2668 | QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc); |
4a71df50 FB |
2669 | goto out_qdio; |
2670 | } | |
2671 | rc = qeth_dm_act(card); | |
2672 | if (rc) { | |
d11ba0c4 | 2673 | QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc); |
4a71df50 FB |
2674 | goto out_qdio; |
2675 | } | |
2676 | ||
2677 | return 0; | |
2678 | out_qdio: | |
2679 | qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD); | |
22ae2790 | 2680 | qdio_free(CARD_DDEV(card)); |
4a71df50 FB |
2681 | return rc; |
2682 | } | |
2683 | ||
4a71df50 FB |
2684 | void qeth_print_status_message(struct qeth_card *card) |
2685 | { | |
2686 | switch (card->info.type) { | |
5113fec0 UB |
2687 | case QETH_CARD_TYPE_OSD: |
2688 | case QETH_CARD_TYPE_OSM: | |
2689 | case QETH_CARD_TYPE_OSX: | |
4a71df50 FB |
2690 | /* VM will use a non-zero first character |
2691 | * to indicate a HiperSockets like reporting | |
2692 | * of the level OSA sets the first character to zero | |
2693 | * */ | |
2694 | if (!card->info.mcl_level[0]) { | |
2695 | sprintf(card->info.mcl_level, "%02x%02x", | |
2696 | card->info.mcl_level[2], | |
2697 | card->info.mcl_level[3]); | |
4a71df50 FB |
2698 | break; |
2699 | } | |
2700 | /* fallthrough */ | |
2701 | case QETH_CARD_TYPE_IQD: | |
906f1f07 KDW |
2702 | if ((card->info.guestlan) || |
2703 | (card->info.mcl_level[0] & 0x80)) { | |
4a71df50 FB |
2704 | card->info.mcl_level[0] = (char) _ebcasc[(__u8) |
2705 | card->info.mcl_level[0]]; | |
2706 | card->info.mcl_level[1] = (char) _ebcasc[(__u8) | |
2707 | card->info.mcl_level[1]]; | |
2708 | card->info.mcl_level[2] = (char) _ebcasc[(__u8) | |
2709 | card->info.mcl_level[2]]; | |
2710 | card->info.mcl_level[3] = (char) _ebcasc[(__u8) | |
2711 | card->info.mcl_level[3]]; | |
2712 | card->info.mcl_level[QETH_MCL_LENGTH] = 0; | |
2713 | } | |
2714 | break; | |
2715 | default: | |
2716 | memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1); | |
2717 | } | |
239ff408 UB |
2718 | dev_info(&card->gdev->dev, |
2719 | "Device is a%s card%s%s%s\nwith link type %s.\n", | |
2720 | qeth_get_cardname(card), | |
2721 | (card->info.mcl_level[0]) ? " (level: " : "", | |
2722 | (card->info.mcl_level[0]) ? card->info.mcl_level : "", | |
2723 | (card->info.mcl_level[0]) ? ")" : "", | |
2724 | qeth_get_cardname_short(card)); | |
4a71df50 FB |
2725 | } |
2726 | EXPORT_SYMBOL_GPL(qeth_print_status_message); | |
2727 | ||
4a71df50 FB |
2728 | static void qeth_initialize_working_pool_list(struct qeth_card *card) |
2729 | { | |
2730 | struct qeth_buffer_pool_entry *entry; | |
2731 | ||
847a50fd | 2732 | QETH_CARD_TEXT(card, 5, "inwrklst"); |
4a71df50 FB |
2733 | |
2734 | list_for_each_entry(entry, | |
2735 | &card->qdio.init_pool.entry_list, init_list) { | |
2736 | qeth_put_buffer_pool_entry(card, entry); | |
2737 | } | |
2738 | } | |
2739 | ||
cef6ff22 JW |
2740 | static struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry( |
2741 | struct qeth_card *card) | |
4a71df50 FB |
2742 | { |
2743 | struct list_head *plh; | |
2744 | struct qeth_buffer_pool_entry *entry; | |
2745 | int i, free; | |
2746 | struct page *page; | |
2747 | ||
2748 | if (list_empty(&card->qdio.in_buf_pool.entry_list)) | |
2749 | return NULL; | |
2750 | ||
2751 | list_for_each(plh, &card->qdio.in_buf_pool.entry_list) { | |
2752 | entry = list_entry(plh, struct qeth_buffer_pool_entry, list); | |
2753 | free = 1; | |
2754 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { | |
2755 | if (page_count(virt_to_page(entry->elements[i])) > 1) { | |
2756 | free = 0; | |
2757 | break; | |
2758 | } | |
2759 | } | |
2760 | if (free) { | |
2761 | list_del_init(&entry->list); | |
2762 | return entry; | |
2763 | } | |
2764 | } | |
2765 | ||
2766 | /* no free buffer in pool so take first one and swap pages */ | |
2767 | entry = list_entry(card->qdio.in_buf_pool.entry_list.next, | |
2768 | struct qeth_buffer_pool_entry, list); | |
2769 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { | |
2770 | if (page_count(virt_to_page(entry->elements[i])) > 1) { | |
508b3c4f | 2771 | page = alloc_page(GFP_ATOMIC); |
4a71df50 FB |
2772 | if (!page) { |
2773 | return NULL; | |
2774 | } else { | |
2775 | free_page((unsigned long)entry->elements[i]); | |
2776 | entry->elements[i] = page_address(page); | |
2777 | if (card->options.performance_stats) | |
2778 | card->perf_stats.sg_alloc_page_rx++; | |
2779 | } | |
2780 | } | |
2781 | } | |
2782 | list_del_init(&entry->list); | |
2783 | return entry; | |
2784 | } | |
2785 | ||
2786 | static int qeth_init_input_buffer(struct qeth_card *card, | |
2787 | struct qeth_qdio_buffer *buf) | |
2788 | { | |
2789 | struct qeth_buffer_pool_entry *pool_entry; | |
2790 | int i; | |
2791 | ||
b3332930 | 2792 | if ((card->options.cq == QETH_CQ_ENABLED) && (!buf->rx_skb)) { |
37cf05d2 JW |
2793 | buf->rx_skb = netdev_alloc_skb(card->dev, |
2794 | QETH_RX_PULL_LEN + ETH_HLEN); | |
b3332930 FB |
2795 | if (!buf->rx_skb) |
2796 | return 1; | |
2797 | } | |
2798 | ||
4a71df50 FB |
2799 | pool_entry = qeth_find_free_buffer_pool_entry(card); |
2800 | if (!pool_entry) | |
2801 | return 1; | |
2802 | ||
2803 | /* | |
2804 | * since the buffer is accessed only from the input_tasklet | |
2805 | * there shouldn't be a need to synchronize; also, since we use | |
2806 | * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off | |
2807 | * buffers | |
2808 | */ | |
4a71df50 FB |
2809 | |
2810 | buf->pool_entry = pool_entry; | |
2811 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { | |
2812 | buf->buffer->element[i].length = PAGE_SIZE; | |
2813 | buf->buffer->element[i].addr = pool_entry->elements[i]; | |
2814 | if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1) | |
3ec90878 | 2815 | buf->buffer->element[i].eflags = SBAL_EFLAGS_LAST_ENTRY; |
4a71df50 | 2816 | else |
3ec90878 JG |
2817 | buf->buffer->element[i].eflags = 0; |
2818 | buf->buffer->element[i].sflags = 0; | |
4a71df50 FB |
2819 | } |
2820 | return 0; | |
2821 | } | |
2822 | ||
2823 | int qeth_init_qdio_queues(struct qeth_card *card) | |
2824 | { | |
2825 | int i, j; | |
2826 | int rc; | |
2827 | ||
d11ba0c4 | 2828 | QETH_DBF_TEXT(SETUP, 2, "initqdqs"); |
4a71df50 FB |
2829 | |
2830 | /* inbound queue */ | |
1b45c80b JW |
2831 | qdio_reset_buffers(card->qdio.in_q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q); |
2832 | memset(&card->rx, 0, sizeof(struct qeth_rx)); | |
4a71df50 FB |
2833 | qeth_initialize_working_pool_list(card); |
2834 | /*give only as many buffers to hardware as we have buffer pool entries*/ | |
2835 | for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i) | |
2836 | qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]); | |
2837 | card->qdio.in_q->next_buf_to_init = | |
2838 | card->qdio.in_buf_pool.buf_count - 1; | |
2839 | rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0, | |
779e6e1c | 2840 | card->qdio.in_buf_pool.buf_count - 1); |
4a71df50 | 2841 | if (rc) { |
d11ba0c4 | 2842 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
2843 | return rc; |
2844 | } | |
0da9581d EL |
2845 | |
2846 | /* completion */ | |
2847 | rc = qeth_cq_init(card); | |
2848 | if (rc) { | |
2849 | return rc; | |
2850 | } | |
2851 | ||
4a71df50 FB |
2852 | /* outbound queue */ |
2853 | for (i = 0; i < card->qdio.no_out_queues; ++i) { | |
d445a4e2 SO |
2854 | qdio_reset_buffers(card->qdio.out_qs[i]->qdio_bufs, |
2855 | QDIO_MAX_BUFFERS_PER_Q); | |
4a71df50 FB |
2856 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { |
2857 | qeth_clear_output_buffer(card->qdio.out_qs[i], | |
3b346c18 | 2858 | card->qdio.out_qs[i]->bufs[j]); |
4a71df50 FB |
2859 | } |
2860 | card->qdio.out_qs[i]->card = card; | |
2861 | card->qdio.out_qs[i]->next_buf_to_fill = 0; | |
2862 | card->qdio.out_qs[i]->do_pack = 0; | |
2863 | atomic_set(&card->qdio.out_qs[i]->used_buffers, 0); | |
2864 | atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0); | |
2865 | atomic_set(&card->qdio.out_qs[i]->state, | |
2866 | QETH_OUT_Q_UNLOCKED); | |
2867 | } | |
2868 | return 0; | |
2869 | } | |
2870 | EXPORT_SYMBOL_GPL(qeth_init_qdio_queues); | |
2871 | ||
cef6ff22 | 2872 | static __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type) |
4a71df50 FB |
2873 | { |
2874 | switch (link_type) { | |
2875 | case QETH_LINK_TYPE_HSTR: | |
2876 | return 2; | |
2877 | default: | |
2878 | return 1; | |
2879 | } | |
2880 | } | |
2881 | ||
2882 | static void qeth_fill_ipacmd_header(struct qeth_card *card, | |
2883 | struct qeth_ipa_cmd *cmd, __u8 command, | |
2884 | enum qeth_prot_versions prot) | |
2885 | { | |
2886 | memset(cmd, 0, sizeof(struct qeth_ipa_cmd)); | |
2887 | cmd->hdr.command = command; | |
2888 | cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST; | |
d22ffb5a | 2889 | /* cmd->hdr.seqno is set by qeth_send_control_data() */ |
4a71df50 | 2890 | cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type); |
92d27209 | 2891 | cmd->hdr.rel_adapter_no = (u8) card->dev->dev_port; |
4a71df50 FB |
2892 | if (card->options.layer2) |
2893 | cmd->hdr.prim_version_no = 2; | |
2894 | else | |
2895 | cmd->hdr.prim_version_no = 1; | |
2896 | cmd->hdr.param_count = 1; | |
2897 | cmd->hdr.prot_version = prot; | |
2898 | cmd->hdr.ipa_supported = 0; | |
2899 | cmd->hdr.ipa_enabled = 0; | |
2900 | } | |
2901 | ||
2902 | struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card, | |
2903 | enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot) | |
2904 | { | |
2905 | struct qeth_cmd_buffer *iob; | |
4a71df50 | 2906 | |
1aec42bc TR |
2907 | iob = qeth_get_buffer(&card->write); |
2908 | if (iob) { | |
ff5caa7a | 2909 | qeth_fill_ipacmd_header(card, __ipa_cmd(iob), ipacmd, prot); |
1aec42bc TR |
2910 | } else { |
2911 | dev_warn(&card->gdev->dev, | |
2912 | "The qeth driver ran out of channel command buffers\n"); | |
2913 | QETH_DBF_MESSAGE(1, "%s The qeth driver ran out of channel command buffers", | |
2914 | dev_name(&card->gdev->dev)); | |
2915 | } | |
4a71df50 FB |
2916 | |
2917 | return iob; | |
2918 | } | |
2919 | EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer); | |
2920 | ||
73657a3e | 2921 | void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob) |
4a71df50 | 2922 | { |
73657a3e JW |
2923 | u8 prot_type = qeth_mpc_select_prot_type(card); |
2924 | ||
4a71df50 FB |
2925 | memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); |
2926 | memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1); | |
2927 | memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), | |
2928 | &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); | |
2929 | } | |
2930 | EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd); | |
2931 | ||
efbbc1d5 EC |
2932 | /** |
2933 | * qeth_send_ipa_cmd() - send an IPA command | |
2934 | * | |
2935 | * See qeth_send_control_data() for explanation of the arguments. | |
2936 | */ | |
2937 | ||
4a71df50 FB |
2938 | int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, |
2939 | int (*reply_cb)(struct qeth_card *, struct qeth_reply*, | |
2940 | unsigned long), | |
2941 | void *reply_param) | |
2942 | { | |
2943 | int rc; | |
4a71df50 | 2944 | |
847a50fd | 2945 | QETH_CARD_TEXT(card, 4, "sendipa"); |
73657a3e | 2946 | qeth_prepare_ipa_cmd(card, iob); |
d11ba0c4 PT |
2947 | rc = qeth_send_control_data(card, IPA_CMD_LENGTH, |
2948 | iob, reply_cb, reply_param); | |
908abbb5 UB |
2949 | if (rc == -ETIME) { |
2950 | qeth_clear_ipacmd_list(card); | |
2951 | qeth_schedule_recovery(card); | |
2952 | } | |
4a71df50 FB |
2953 | return rc; |
2954 | } | |
2955 | EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd); | |
2956 | ||
10340510 | 2957 | static int qeth_send_startlan(struct qeth_card *card) |
4a71df50 FB |
2958 | { |
2959 | int rc; | |
70919e23 | 2960 | struct qeth_cmd_buffer *iob; |
4a71df50 | 2961 | |
d11ba0c4 | 2962 | QETH_DBF_TEXT(SETUP, 2, "strtlan"); |
4a71df50 | 2963 | |
70919e23 | 2964 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_STARTLAN, 0); |
1aec42bc TR |
2965 | if (!iob) |
2966 | return -ENOMEM; | |
70919e23 | 2967 | rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); |
4a71df50 FB |
2968 | return rc; |
2969 | } | |
4a71df50 | 2970 | |
686c97ee | 2971 | static int qeth_setadpparms_inspect_rc(struct qeth_ipa_cmd *cmd) |
4a71df50 | 2972 | { |
686c97ee | 2973 | if (!cmd->hdr.return_code) |
4a71df50 FB |
2974 | cmd->hdr.return_code = |
2975 | cmd->data.setadapterparms.hdr.return_code; | |
686c97ee | 2976 | return cmd->hdr.return_code; |
4a71df50 | 2977 | } |
4a71df50 FB |
2978 | |
2979 | static int qeth_query_setadapterparms_cb(struct qeth_card *card, | |
2980 | struct qeth_reply *reply, unsigned long data) | |
2981 | { | |
686c97ee | 2982 | struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; |
4a71df50 | 2983 | |
847a50fd | 2984 | QETH_CARD_TEXT(card, 3, "quyadpcb"); |
686c97ee JW |
2985 | if (qeth_setadpparms_inspect_rc(cmd)) |
2986 | return 0; | |
4a71df50 | 2987 | |
5113fec0 | 2988 | if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) { |
4a71df50 FB |
2989 | card->info.link_type = |
2990 | cmd->data.setadapterparms.data.query_cmds_supp.lan_type; | |
5113fec0 UB |
2991 | QETH_DBF_TEXT_(SETUP, 2, "lnk %d", card->info.link_type); |
2992 | } | |
4a71df50 FB |
2993 | card->options.adp.supported_funcs = |
2994 | cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds; | |
686c97ee | 2995 | return 0; |
4a71df50 FB |
2996 | } |
2997 | ||
eb3fb0ba | 2998 | static struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card, |
4a71df50 FB |
2999 | __u32 command, __u32 cmdlen) |
3000 | { | |
3001 | struct qeth_cmd_buffer *iob; | |
3002 | struct qeth_ipa_cmd *cmd; | |
3003 | ||
3004 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS, | |
3005 | QETH_PROT_IPV4); | |
1aec42bc | 3006 | if (iob) { |
ff5caa7a | 3007 | cmd = __ipa_cmd(iob); |
1aec42bc TR |
3008 | cmd->data.setadapterparms.hdr.cmdlength = cmdlen; |
3009 | cmd->data.setadapterparms.hdr.command_code = command; | |
3010 | cmd->data.setadapterparms.hdr.used_total = 1; | |
3011 | cmd->data.setadapterparms.hdr.seq_no = 1; | |
3012 | } | |
4a71df50 FB |
3013 | |
3014 | return iob; | |
3015 | } | |
4a71df50 | 3016 | |
09960b3a | 3017 | static int qeth_query_setadapterparms(struct qeth_card *card) |
4a71df50 FB |
3018 | { |
3019 | int rc; | |
3020 | struct qeth_cmd_buffer *iob; | |
3021 | ||
847a50fd | 3022 | QETH_CARD_TEXT(card, 3, "queryadp"); |
4a71df50 FB |
3023 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED, |
3024 | sizeof(struct qeth_ipacmd_setadpparms)); | |
1aec42bc TR |
3025 | if (!iob) |
3026 | return -ENOMEM; | |
4a71df50 FB |
3027 | rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL); |
3028 | return rc; | |
3029 | } | |
4a71df50 | 3030 | |
1da74b1c FB |
3031 | static int qeth_query_ipassists_cb(struct qeth_card *card, |
3032 | struct qeth_reply *reply, unsigned long data) | |
3033 | { | |
3034 | struct qeth_ipa_cmd *cmd; | |
3035 | ||
3036 | QETH_DBF_TEXT(SETUP, 2, "qipasscb"); | |
3037 | ||
3038 | cmd = (struct qeth_ipa_cmd *) data; | |
a134884a SR |
3039 | |
3040 | switch (cmd->hdr.return_code) { | |
3041 | case IPA_RC_NOTSUPP: | |
3042 | case IPA_RC_L2_UNSUPPORTED_CMD: | |
3043 | QETH_DBF_TEXT(SETUP, 2, "ipaunsup"); | |
3044 | card->options.ipa4.supported_funcs |= IPA_SETADAPTERPARMS; | |
3045 | card->options.ipa6.supported_funcs |= IPA_SETADAPTERPARMS; | |
3046 | return -0; | |
3047 | default: | |
3048 | if (cmd->hdr.return_code) { | |
3049 | QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Unhandled " | |
3050 | "rc=%d\n", | |
3051 | dev_name(&card->gdev->dev), | |
3052 | cmd->hdr.return_code); | |
3053 | return 0; | |
3054 | } | |
3055 | } | |
3056 | ||
1da74b1c FB |
3057 | if (cmd->hdr.prot_version == QETH_PROT_IPV4) { |
3058 | card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported; | |
3059 | card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled; | |
a134884a | 3060 | } else if (cmd->hdr.prot_version == QETH_PROT_IPV6) { |
1da74b1c FB |
3061 | card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported; |
3062 | card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled; | |
a134884a SR |
3063 | } else |
3064 | QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Flawed LIC detected" | |
3065 | "\n", dev_name(&card->gdev->dev)); | |
1da74b1c FB |
3066 | return 0; |
3067 | } | |
3068 | ||
09960b3a JW |
3069 | static int qeth_query_ipassists(struct qeth_card *card, |
3070 | enum qeth_prot_versions prot) | |
1da74b1c FB |
3071 | { |
3072 | int rc; | |
3073 | struct qeth_cmd_buffer *iob; | |
3074 | ||
3075 | QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot); | |
3076 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot); | |
1aec42bc TR |
3077 | if (!iob) |
3078 | return -ENOMEM; | |
1da74b1c FB |
3079 | rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL); |
3080 | return rc; | |
3081 | } | |
1da74b1c | 3082 | |
45cbb2e4 SR |
3083 | static int qeth_query_switch_attributes_cb(struct qeth_card *card, |
3084 | struct qeth_reply *reply, unsigned long data) | |
3085 | { | |
686c97ee | 3086 | struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; |
45cbb2e4 | 3087 | struct qeth_query_switch_attributes *attrs; |
686c97ee | 3088 | struct qeth_switch_info *sw_info; |
45cbb2e4 SR |
3089 | |
3090 | QETH_CARD_TEXT(card, 2, "qswiatcb"); | |
686c97ee JW |
3091 | if (qeth_setadpparms_inspect_rc(cmd)) |
3092 | return 0; | |
45cbb2e4 | 3093 | |
686c97ee JW |
3094 | sw_info = (struct qeth_switch_info *)reply->param; |
3095 | attrs = &cmd->data.setadapterparms.data.query_switch_attributes; | |
3096 | sw_info->capabilities = attrs->capabilities; | |
3097 | sw_info->settings = attrs->settings; | |
3098 | QETH_CARD_TEXT_(card, 2, "%04x%04x", sw_info->capabilities, | |
3099 | sw_info->settings); | |
45cbb2e4 SR |
3100 | return 0; |
3101 | } | |
3102 | ||
3103 | int qeth_query_switch_attributes(struct qeth_card *card, | |
3104 | struct qeth_switch_info *sw_info) | |
3105 | { | |
3106 | struct qeth_cmd_buffer *iob; | |
3107 | ||
3108 | QETH_CARD_TEXT(card, 2, "qswiattr"); | |
3109 | if (!qeth_adp_supported(card, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES)) | |
3110 | return -EOPNOTSUPP; | |
3111 | if (!netif_carrier_ok(card->dev)) | |
3112 | return -ENOMEDIUM; | |
3113 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES, | |
3114 | sizeof(struct qeth_ipacmd_setadpparms_hdr)); | |
1aec42bc TR |
3115 | if (!iob) |
3116 | return -ENOMEM; | |
45cbb2e4 SR |
3117 | return qeth_send_ipa_cmd(card, iob, |
3118 | qeth_query_switch_attributes_cb, sw_info); | |
3119 | } | |
45cbb2e4 | 3120 | |
1da74b1c FB |
3121 | static int qeth_query_setdiagass_cb(struct qeth_card *card, |
3122 | struct qeth_reply *reply, unsigned long data) | |
3123 | { | |
3124 | struct qeth_ipa_cmd *cmd; | |
3125 | __u16 rc; | |
3126 | ||
3127 | cmd = (struct qeth_ipa_cmd *)data; | |
3128 | rc = cmd->hdr.return_code; | |
3129 | if (rc) | |
3130 | QETH_CARD_TEXT_(card, 2, "diagq:%x", rc); | |
3131 | else | |
3132 | card->info.diagass_support = cmd->data.diagass.ext; | |
3133 | return 0; | |
3134 | } | |
3135 | ||
3136 | static int qeth_query_setdiagass(struct qeth_card *card) | |
3137 | { | |
3138 | struct qeth_cmd_buffer *iob; | |
3139 | struct qeth_ipa_cmd *cmd; | |
3140 | ||
3141 | QETH_DBF_TEXT(SETUP, 2, "qdiagass"); | |
3142 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0); | |
1aec42bc TR |
3143 | if (!iob) |
3144 | return -ENOMEM; | |
ff5caa7a | 3145 | cmd = __ipa_cmd(iob); |
1da74b1c FB |
3146 | cmd->data.diagass.subcmd_len = 16; |
3147 | cmd->data.diagass.subcmd = QETH_DIAGS_CMD_QUERY; | |
3148 | return qeth_send_ipa_cmd(card, iob, qeth_query_setdiagass_cb, NULL); | |
3149 | } | |
3150 | ||
3151 | static void qeth_get_trap_id(struct qeth_card *card, struct qeth_trap_id *tid) | |
3152 | { | |
3153 | unsigned long info = get_zeroed_page(GFP_KERNEL); | |
3154 | struct sysinfo_2_2_2 *info222 = (struct sysinfo_2_2_2 *)info; | |
3155 | struct sysinfo_3_2_2 *info322 = (struct sysinfo_3_2_2 *)info; | |
3156 | struct ccw_dev_id ccwid; | |
caf757c6 | 3157 | int level; |
1da74b1c FB |
3158 | |
3159 | tid->chpid = card->info.chpid; | |
3160 | ccw_device_get_id(CARD_RDEV(card), &ccwid); | |
3161 | tid->ssid = ccwid.ssid; | |
3162 | tid->devno = ccwid.devno; | |
3163 | if (!info) | |
3164 | return; | |
caf757c6 HC |
3165 | level = stsi(NULL, 0, 0, 0); |
3166 | if ((level >= 2) && (stsi(info222, 2, 2, 2) == 0)) | |
1da74b1c | 3167 | tid->lparnr = info222->lpar_number; |
caf757c6 | 3168 | if ((level >= 3) && (stsi(info322, 3, 2, 2) == 0)) { |
1da74b1c FB |
3169 | EBCASC(info322->vm[0].name, sizeof(info322->vm[0].name)); |
3170 | memcpy(tid->vmname, info322->vm[0].name, sizeof(tid->vmname)); | |
3171 | } | |
3172 | free_page(info); | |
3173 | return; | |
3174 | } | |
3175 | ||
3176 | static int qeth_hw_trap_cb(struct qeth_card *card, | |
3177 | struct qeth_reply *reply, unsigned long data) | |
3178 | { | |
3179 | struct qeth_ipa_cmd *cmd; | |
3180 | __u16 rc; | |
3181 | ||
3182 | cmd = (struct qeth_ipa_cmd *)data; | |
3183 | rc = cmd->hdr.return_code; | |
3184 | if (rc) | |
3185 | QETH_CARD_TEXT_(card, 2, "trapc:%x", rc); | |
3186 | return 0; | |
3187 | } | |
3188 | ||
3189 | int qeth_hw_trap(struct qeth_card *card, enum qeth_diags_trap_action action) | |
3190 | { | |
3191 | struct qeth_cmd_buffer *iob; | |
3192 | struct qeth_ipa_cmd *cmd; | |
3193 | ||
3194 | QETH_DBF_TEXT(SETUP, 2, "diagtrap"); | |
3195 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0); | |
1aec42bc TR |
3196 | if (!iob) |
3197 | return -ENOMEM; | |
ff5caa7a | 3198 | cmd = __ipa_cmd(iob); |
1da74b1c FB |
3199 | cmd->data.diagass.subcmd_len = 80; |
3200 | cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRAP; | |
3201 | cmd->data.diagass.type = 1; | |
3202 | cmd->data.diagass.action = action; | |
3203 | switch (action) { | |
3204 | case QETH_DIAGS_TRAP_ARM: | |
3205 | cmd->data.diagass.options = 0x0003; | |
3206 | cmd->data.diagass.ext = 0x00010000 + | |
3207 | sizeof(struct qeth_trap_id); | |
3208 | qeth_get_trap_id(card, | |
3209 | (struct qeth_trap_id *)cmd->data.diagass.cdata); | |
3210 | break; | |
3211 | case QETH_DIAGS_TRAP_DISARM: | |
3212 | cmd->data.diagass.options = 0x0001; | |
3213 | break; | |
3214 | case QETH_DIAGS_TRAP_CAPTURE: | |
3215 | break; | |
3216 | } | |
3217 | return qeth_send_ipa_cmd(card, iob, qeth_hw_trap_cb, NULL); | |
3218 | } | |
3219 | EXPORT_SYMBOL_GPL(qeth_hw_trap); | |
3220 | ||
d73ef324 JW |
3221 | static int qeth_check_qdio_errors(struct qeth_card *card, |
3222 | struct qdio_buffer *buf, | |
3223 | unsigned int qdio_error, | |
3224 | const char *dbftext) | |
4a71df50 | 3225 | { |
779e6e1c | 3226 | if (qdio_error) { |
847a50fd | 3227 | QETH_CARD_TEXT(card, 2, dbftext); |
38593d01 | 3228 | QETH_CARD_TEXT_(card, 2, " F15=%02X", |
3ec90878 | 3229 | buf->element[15].sflags); |
38593d01 | 3230 | QETH_CARD_TEXT_(card, 2, " F14=%02X", |
3ec90878 | 3231 | buf->element[14].sflags); |
38593d01 | 3232 | QETH_CARD_TEXT_(card, 2, " qerr=%X", qdio_error); |
3ec90878 | 3233 | if ((buf->element[15].sflags) == 0x12) { |
76b11f8e UB |
3234 | card->stats.rx_dropped++; |
3235 | return 0; | |
3236 | } else | |
3237 | return 1; | |
4a71df50 FB |
3238 | } |
3239 | return 0; | |
3240 | } | |
4a71df50 | 3241 | |
d73ef324 | 3242 | static void qeth_queue_input_buffer(struct qeth_card *card, int index) |
4a71df50 FB |
3243 | { |
3244 | struct qeth_qdio_q *queue = card->qdio.in_q; | |
b3332930 | 3245 | struct list_head *lh; |
4a71df50 FB |
3246 | int count; |
3247 | int i; | |
3248 | int rc; | |
3249 | int newcount = 0; | |
3250 | ||
4a71df50 FB |
3251 | count = (index < queue->next_buf_to_init)? |
3252 | card->qdio.in_buf_pool.buf_count - | |
3253 | (queue->next_buf_to_init - index) : | |
3254 | card->qdio.in_buf_pool.buf_count - | |
3255 | (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index); | |
3256 | /* only requeue at a certain threshold to avoid SIGAs */ | |
3257 | if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) { | |
3258 | for (i = queue->next_buf_to_init; | |
3259 | i < queue->next_buf_to_init + count; ++i) { | |
3260 | if (qeth_init_input_buffer(card, | |
3261 | &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) { | |
3262 | break; | |
3263 | } else { | |
3264 | newcount++; | |
3265 | } | |
3266 | } | |
3267 | ||
3268 | if (newcount < count) { | |
3269 | /* we are in memory shortage so we switch back to | |
3270 | traditional skb allocation and drop packages */ | |
4a71df50 FB |
3271 | atomic_set(&card->force_alloc_skb, 3); |
3272 | count = newcount; | |
3273 | } else { | |
4a71df50 FB |
3274 | atomic_add_unless(&card->force_alloc_skb, -1, 0); |
3275 | } | |
3276 | ||
b3332930 FB |
3277 | if (!count) { |
3278 | i = 0; | |
3279 | list_for_each(lh, &card->qdio.in_buf_pool.entry_list) | |
3280 | i++; | |
3281 | if (i == card->qdio.in_buf_pool.buf_count) { | |
3282 | QETH_CARD_TEXT(card, 2, "qsarbw"); | |
3283 | card->reclaim_index = index; | |
3284 | schedule_delayed_work( | |
3285 | &card->buffer_reclaim_work, | |
3286 | QETH_RECLAIM_WORK_TIME); | |
3287 | } | |
3288 | return; | |
3289 | } | |
3290 | ||
4a71df50 FB |
3291 | /* |
3292 | * according to old code it should be avoided to requeue all | |
3293 | * 128 buffers in order to benefit from PCI avoidance. | |
3294 | * this function keeps at least one buffer (the buffer at | |
3295 | * 'index') un-requeued -> this buffer is the first buffer that | |
3296 | * will be requeued the next time | |
3297 | */ | |
3298 | if (card->options.performance_stats) { | |
3299 | card->perf_stats.inbound_do_qdio_cnt++; | |
3300 | card->perf_stats.inbound_do_qdio_start_time = | |
3301 | qeth_get_micros(); | |
3302 | } | |
779e6e1c JG |
3303 | rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, |
3304 | queue->next_buf_to_init, count); | |
4a71df50 FB |
3305 | if (card->options.performance_stats) |
3306 | card->perf_stats.inbound_do_qdio_time += | |
3307 | qeth_get_micros() - | |
3308 | card->perf_stats.inbound_do_qdio_start_time; | |
3309 | if (rc) { | |
847a50fd | 3310 | QETH_CARD_TEXT(card, 2, "qinberr"); |
4a71df50 FB |
3311 | } |
3312 | queue->next_buf_to_init = (queue->next_buf_to_init + count) % | |
3313 | QDIO_MAX_BUFFERS_PER_Q; | |
3314 | } | |
3315 | } | |
d73ef324 JW |
3316 | |
3317 | static void qeth_buffer_reclaim_work(struct work_struct *work) | |
3318 | { | |
3319 | struct qeth_card *card = container_of(work, struct qeth_card, | |
3320 | buffer_reclaim_work.work); | |
3321 | ||
3322 | QETH_CARD_TEXT_(card, 2, "brw:%x", card->reclaim_index); | |
3323 | qeth_queue_input_buffer(card, card->reclaim_index); | |
3324 | } | |
4a71df50 | 3325 | |
d7a39937 | 3326 | static void qeth_handle_send_error(struct qeth_card *card, |
779e6e1c | 3327 | struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err) |
4a71df50 | 3328 | { |
3ec90878 | 3329 | int sbalf15 = buffer->buffer->element[15].sflags; |
4a71df50 | 3330 | |
847a50fd | 3331 | QETH_CARD_TEXT(card, 6, "hdsnderr"); |
58490f18 KDW |
3332 | if (card->info.type == QETH_CARD_TYPE_IQD) { |
3333 | if (sbalf15 == 0) { | |
3334 | qdio_err = 0; | |
3335 | } else { | |
3336 | qdio_err = 1; | |
3337 | } | |
3338 | } | |
76b11f8e | 3339 | qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr"); |
d303b6fd JG |
3340 | |
3341 | if (!qdio_err) | |
d7a39937 | 3342 | return; |
d303b6fd JG |
3343 | |
3344 | if ((sbalf15 >= 15) && (sbalf15 <= 31)) | |
d7a39937 | 3345 | return; |
d303b6fd | 3346 | |
847a50fd CO |
3347 | QETH_CARD_TEXT(card, 1, "lnkfail"); |
3348 | QETH_CARD_TEXT_(card, 1, "%04x %02x", | |
d303b6fd | 3349 | (u16)qdio_err, (u8)sbalf15); |
4a71df50 FB |
3350 | } |
3351 | ||
664e42ac JW |
3352 | /** |
3353 | * qeth_prep_flush_pack_buffer - Prepares flushing of a packing buffer. | |
3354 | * @queue: queue to check for packing buffer | |
3355 | * | |
3356 | * Returns number of buffers that were prepared for flush. | |
3357 | */ | |
3358 | static int qeth_prep_flush_pack_buffer(struct qeth_qdio_out_q *queue) | |
3359 | { | |
3360 | struct qeth_qdio_out_buffer *buffer; | |
3361 | ||
3362 | buffer = queue->bufs[queue->next_buf_to_fill]; | |
3363 | if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) && | |
3364 | (buffer->next_element_to_fill > 0)) { | |
3365 | /* it's a packing buffer */ | |
3366 | atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); | |
3367 | queue->next_buf_to_fill = | |
3368 | (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q; | |
3369 | return 1; | |
3370 | } | |
3371 | return 0; | |
3372 | } | |
3373 | ||
4a71df50 FB |
3374 | /* |
3375 | * Switched to packing state if the number of used buffers on a queue | |
3376 | * reaches a certain limit. | |
3377 | */ | |
3378 | static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue) | |
3379 | { | |
3380 | if (!queue->do_pack) { | |
3381 | if (atomic_read(&queue->used_buffers) | |
3382 | >= QETH_HIGH_WATERMARK_PACK){ | |
3383 | /* switch non-PACKING -> PACKING */ | |
847a50fd | 3384 | QETH_CARD_TEXT(queue->card, 6, "np->pack"); |
4a71df50 FB |
3385 | if (queue->card->options.performance_stats) |
3386 | queue->card->perf_stats.sc_dp_p++; | |
3387 | queue->do_pack = 1; | |
3388 | } | |
3389 | } | |
3390 | } | |
3391 | ||
3392 | /* | |
3393 | * Switches from packing to non-packing mode. If there is a packing | |
3394 | * buffer on the queue this buffer will be prepared to be flushed. | |
3395 | * In that case 1 is returned to inform the caller. If no buffer | |
3396 | * has to be flushed, zero is returned. | |
3397 | */ | |
3398 | static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue) | |
3399 | { | |
4a71df50 FB |
3400 | if (queue->do_pack) { |
3401 | if (atomic_read(&queue->used_buffers) | |
3402 | <= QETH_LOW_WATERMARK_PACK) { | |
3403 | /* switch PACKING -> non-PACKING */ | |
847a50fd | 3404 | QETH_CARD_TEXT(queue->card, 6, "pack->np"); |
4a71df50 FB |
3405 | if (queue->card->options.performance_stats) |
3406 | queue->card->perf_stats.sc_p_dp++; | |
3407 | queue->do_pack = 0; | |
664e42ac | 3408 | return qeth_prep_flush_pack_buffer(queue); |
4a71df50 FB |
3409 | } |
3410 | } | |
4a71df50 FB |
3411 | return 0; |
3412 | } | |
3413 | ||
779e6e1c JG |
3414 | static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index, |
3415 | int count) | |
4a71df50 FB |
3416 | { |
3417 | struct qeth_qdio_out_buffer *buf; | |
3418 | int rc; | |
3419 | int i; | |
3420 | unsigned int qdio_flags; | |
3421 | ||
4a71df50 | 3422 | for (i = index; i < index + count; ++i) { |
0da9581d EL |
3423 | int bidx = i % QDIO_MAX_BUFFERS_PER_Q; |
3424 | buf = queue->bufs[bidx]; | |
3ec90878 JG |
3425 | buf->buffer->element[buf->next_element_to_fill - 1].eflags |= |
3426 | SBAL_EFLAGS_LAST_ENTRY; | |
4a71df50 | 3427 | |
0da9581d EL |
3428 | if (queue->bufstates) |
3429 | queue->bufstates[bidx].user = buf; | |
3430 | ||
4a71df50 FB |
3431 | if (queue->card->info.type == QETH_CARD_TYPE_IQD) |
3432 | continue; | |
3433 | ||
3434 | if (!queue->do_pack) { | |
3435 | if ((atomic_read(&queue->used_buffers) >= | |
3436 | (QETH_HIGH_WATERMARK_PACK - | |
3437 | QETH_WATERMARK_PACK_FUZZ)) && | |
3438 | !atomic_read(&queue->set_pci_flags_count)) { | |
3439 | /* it's likely that we'll go to packing | |
3440 | * mode soon */ | |
3441 | atomic_inc(&queue->set_pci_flags_count); | |
3ec90878 | 3442 | buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ; |
4a71df50 FB |
3443 | } |
3444 | } else { | |
3445 | if (!atomic_read(&queue->set_pci_flags_count)) { | |
3446 | /* | |
3447 | * there's no outstanding PCI any more, so we | |
3448 | * have to request a PCI to be sure the the PCI | |
3449 | * will wake at some time in the future then we | |
3450 | * can flush packed buffers that might still be | |
3451 | * hanging around, which can happen if no | |
3452 | * further send was requested by the stack | |
3453 | */ | |
3454 | atomic_inc(&queue->set_pci_flags_count); | |
3ec90878 | 3455 | buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ; |
4a71df50 FB |
3456 | } |
3457 | } | |
3458 | } | |
3459 | ||
3e66bab3 | 3460 | netif_trans_update(queue->card->dev); |
4a71df50 FB |
3461 | if (queue->card->options.performance_stats) { |
3462 | queue->card->perf_stats.outbound_do_qdio_cnt++; | |
3463 | queue->card->perf_stats.outbound_do_qdio_start_time = | |
3464 | qeth_get_micros(); | |
3465 | } | |
3466 | qdio_flags = QDIO_FLAG_SYNC_OUTPUT; | |
4a71df50 FB |
3467 | if (atomic_read(&queue->set_pci_flags_count)) |
3468 | qdio_flags |= QDIO_FLAG_PCI_OUT; | |
a702349a JW |
3469 | atomic_add(count, &queue->used_buffers); |
3470 | ||
4a71df50 | 3471 | rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags, |
779e6e1c | 3472 | queue->queue_no, index, count); |
4a71df50 FB |
3473 | if (queue->card->options.performance_stats) |
3474 | queue->card->perf_stats.outbound_do_qdio_time += | |
3475 | qeth_get_micros() - | |
3476 | queue->card->perf_stats.outbound_do_qdio_start_time; | |
3477 | if (rc) { | |
d303b6fd JG |
3478 | queue->card->stats.tx_errors += count; |
3479 | /* ignore temporary SIGA errors without busy condition */ | |
1549d13f | 3480 | if (rc == -ENOBUFS) |
d303b6fd | 3481 | return; |
847a50fd | 3482 | QETH_CARD_TEXT(queue->card, 2, "flushbuf"); |
0da9581d EL |
3483 | QETH_CARD_TEXT_(queue->card, 2, " q%d", queue->queue_no); |
3484 | QETH_CARD_TEXT_(queue->card, 2, " idx%d", index); | |
3485 | QETH_CARD_TEXT_(queue->card, 2, " c%d", count); | |
847a50fd | 3486 | QETH_CARD_TEXT_(queue->card, 2, " err%d", rc); |
d303b6fd | 3487 | |
4a71df50 FB |
3488 | /* this must not happen under normal circumstances. if it |
3489 | * happens something is really wrong -> recover */ | |
3490 | qeth_schedule_recovery(queue->card); | |
3491 | return; | |
3492 | } | |
4a71df50 FB |
3493 | if (queue->card->options.performance_stats) |
3494 | queue->card->perf_stats.bufs_sent += count; | |
3495 | } | |
3496 | ||
3497 | static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue) | |
3498 | { | |
3499 | int index; | |
3500 | int flush_cnt = 0; | |
3501 | int q_was_packing = 0; | |
3502 | ||
3503 | /* | |
3504 | * check if weed have to switch to non-packing mode or if | |
3505 | * we have to get a pci flag out on the queue | |
3506 | */ | |
3507 | if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) || | |
3508 | !atomic_read(&queue->set_pci_flags_count)) { | |
3509 | if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) == | |
3510 | QETH_OUT_Q_UNLOCKED) { | |
3511 | /* | |
3512 | * If we get in here, there was no action in | |
3513 | * do_send_packet. So, we check if there is a | |
3514 | * packing buffer to be flushed here. | |
3515 | */ | |
3516 | netif_stop_queue(queue->card->dev); | |
3517 | index = queue->next_buf_to_fill; | |
3518 | q_was_packing = queue->do_pack; | |
3519 | /* queue->do_pack may change */ | |
3520 | barrier(); | |
3521 | flush_cnt += qeth_switch_to_nonpacking_if_needed(queue); | |
3522 | if (!flush_cnt && | |
3523 | !atomic_read(&queue->set_pci_flags_count)) | |
664e42ac | 3524 | flush_cnt += qeth_prep_flush_pack_buffer(queue); |
4a71df50 FB |
3525 | if (queue->card->options.performance_stats && |
3526 | q_was_packing) | |
3527 | queue->card->perf_stats.bufs_sent_pack += | |
3528 | flush_cnt; | |
3529 | if (flush_cnt) | |
779e6e1c | 3530 | qeth_flush_buffers(queue, index, flush_cnt); |
4a71df50 FB |
3531 | atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); |
3532 | } | |
3533 | } | |
3534 | } | |
3535 | ||
7bcd64eb JW |
3536 | static void qeth_qdio_start_poll(struct ccw_device *ccwdev, int queue, |
3537 | unsigned long card_ptr) | |
a1c3ed4c FB |
3538 | { |
3539 | struct qeth_card *card = (struct qeth_card *)card_ptr; | |
3540 | ||
d3d1b205 | 3541 | if (card->dev->flags & IFF_UP) |
a1c3ed4c FB |
3542 | napi_schedule(&card->napi); |
3543 | } | |
a1c3ed4c | 3544 | |
0da9581d EL |
3545 | int qeth_configure_cq(struct qeth_card *card, enum qeth_cq cq) |
3546 | { | |
3547 | int rc; | |
3548 | ||
3549 | if (card->options.cq == QETH_CQ_NOTAVAILABLE) { | |
3550 | rc = -1; | |
3551 | goto out; | |
3552 | } else { | |
3553 | if (card->options.cq == cq) { | |
3554 | rc = 0; | |
3555 | goto out; | |
3556 | } | |
3557 | ||
3558 | if (card->state != CARD_STATE_DOWN && | |
3559 | card->state != CARD_STATE_RECOVER) { | |
3560 | rc = -1; | |
3561 | goto out; | |
3562 | } | |
3563 | ||
3564 | qeth_free_qdio_buffers(card); | |
3565 | card->options.cq = cq; | |
3566 | rc = 0; | |
3567 | } | |
3568 | out: | |
3569 | return rc; | |
3570 | ||
3571 | } | |
3572 | EXPORT_SYMBOL_GPL(qeth_configure_cq); | |
3573 | ||
3b346c18 JW |
3574 | static void qeth_qdio_cq_handler(struct qeth_card *card, unsigned int qdio_err, |
3575 | unsigned int queue, int first_element, | |
3576 | int count) | |
3577 | { | |
0da9581d EL |
3578 | struct qeth_qdio_q *cq = card->qdio.c_q; |
3579 | int i; | |
3580 | int rc; | |
3581 | ||
3582 | if (!qeth_is_cq(card, queue)) | |
3583 | goto out; | |
3584 | ||
3585 | QETH_CARD_TEXT_(card, 5, "qcqhe%d", first_element); | |
3586 | QETH_CARD_TEXT_(card, 5, "qcqhc%d", count); | |
3587 | QETH_CARD_TEXT_(card, 5, "qcqherr%d", qdio_err); | |
3588 | ||
3589 | if (qdio_err) { | |
3590 | netif_stop_queue(card->dev); | |
3591 | qeth_schedule_recovery(card); | |
3592 | goto out; | |
3593 | } | |
3594 | ||
3595 | if (card->options.performance_stats) { | |
3596 | card->perf_stats.cq_cnt++; | |
3597 | card->perf_stats.cq_start_time = qeth_get_micros(); | |
3598 | } | |
3599 | ||
3600 | for (i = first_element; i < first_element + count; ++i) { | |
3601 | int bidx = i % QDIO_MAX_BUFFERS_PER_Q; | |
6d284bde | 3602 | struct qdio_buffer *buffer = cq->qdio_bufs[bidx]; |
3b346c18 | 3603 | int e = 0; |
0da9581d | 3604 | |
903e4853 UB |
3605 | while ((e < QDIO_MAX_ELEMENTS_PER_BUFFER) && |
3606 | buffer->element[e].addr) { | |
0da9581d EL |
3607 | unsigned long phys_aob_addr; |
3608 | ||
3609 | phys_aob_addr = (unsigned long) buffer->element[e].addr; | |
3610 | qeth_qdio_handle_aob(card, phys_aob_addr); | |
0da9581d EL |
3611 | ++e; |
3612 | } | |
3b346c18 | 3613 | qeth_scrub_qdio_buffer(buffer, QDIO_MAX_ELEMENTS_PER_BUFFER); |
0da9581d EL |
3614 | } |
3615 | rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, queue, | |
3616 | card->qdio.c_q->next_buf_to_init, | |
3617 | count); | |
3618 | if (rc) { | |
3619 | dev_warn(&card->gdev->dev, | |
3620 | "QDIO reported an error, rc=%i\n", rc); | |
3621 | QETH_CARD_TEXT(card, 2, "qcqherr"); | |
3622 | } | |
3623 | card->qdio.c_q->next_buf_to_init = (card->qdio.c_q->next_buf_to_init | |
3624 | + count) % QDIO_MAX_BUFFERS_PER_Q; | |
3625 | ||
3626 | netif_wake_queue(card->dev); | |
3627 | ||
3628 | if (card->options.performance_stats) { | |
3629 | int delta_t = qeth_get_micros(); | |
3630 | delta_t -= card->perf_stats.cq_start_time; | |
3631 | card->perf_stats.cq_time += delta_t; | |
3632 | } | |
3633 | out: | |
3634 | return; | |
3635 | } | |
3636 | ||
7bcd64eb JW |
3637 | static void qeth_qdio_input_handler(struct ccw_device *ccwdev, |
3638 | unsigned int qdio_err, int queue, | |
3639 | int first_elem, int count, | |
3640 | unsigned long card_ptr) | |
a1c3ed4c FB |
3641 | { |
3642 | struct qeth_card *card = (struct qeth_card *)card_ptr; | |
3643 | ||
0da9581d EL |
3644 | QETH_CARD_TEXT_(card, 2, "qihq%d", queue); |
3645 | QETH_CARD_TEXT_(card, 2, "qiec%d", qdio_err); | |
3646 | ||
3647 | if (qeth_is_cq(card, queue)) | |
3648 | qeth_qdio_cq_handler(card, qdio_err, queue, first_elem, count); | |
3649 | else if (qdio_err) | |
a1c3ed4c FB |
3650 | qeth_schedule_recovery(card); |
3651 | } | |
a1c3ed4c | 3652 | |
7bcd64eb JW |
3653 | static void qeth_qdio_output_handler(struct ccw_device *ccwdev, |
3654 | unsigned int qdio_error, int __queue, | |
3655 | int first_element, int count, | |
3656 | unsigned long card_ptr) | |
4a71df50 FB |
3657 | { |
3658 | struct qeth_card *card = (struct qeth_card *) card_ptr; | |
3659 | struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue]; | |
3660 | struct qeth_qdio_out_buffer *buffer; | |
3661 | int i; | |
3662 | ||
847a50fd | 3663 | QETH_CARD_TEXT(card, 6, "qdouhdl"); |
1549d13f | 3664 | if (qdio_error & QDIO_ERROR_FATAL) { |
847a50fd | 3665 | QETH_CARD_TEXT(card, 2, "achkcond"); |
779e6e1c JG |
3666 | netif_stop_queue(card->dev); |
3667 | qeth_schedule_recovery(card); | |
3668 | return; | |
4a71df50 FB |
3669 | } |
3670 | if (card->options.performance_stats) { | |
3671 | card->perf_stats.outbound_handler_cnt++; | |
3672 | card->perf_stats.outbound_handler_start_time = | |
3673 | qeth_get_micros(); | |
3674 | } | |
3675 | for (i = first_element; i < (first_element + count); ++i) { | |
0da9581d EL |
3676 | int bidx = i % QDIO_MAX_BUFFERS_PER_Q; |
3677 | buffer = queue->bufs[bidx]; | |
b67d801f | 3678 | qeth_handle_send_error(card, buffer, qdio_error); |
0da9581d EL |
3679 | |
3680 | if (queue->bufstates && | |
3681 | (queue->bufstates[bidx].flags & | |
3682 | QDIO_OUTBUF_STATE_FLAG_PENDING) != 0) { | |
18af5c17 | 3683 | WARN_ON_ONCE(card->options.cq != QETH_CQ_ENABLED); |
b3332930 FB |
3684 | |
3685 | if (atomic_cmpxchg(&buffer->state, | |
3686 | QETH_QDIO_BUF_PRIMED, | |
3687 | QETH_QDIO_BUF_PENDING) == | |
3688 | QETH_QDIO_BUF_PRIMED) { | |
3689 | qeth_notify_skbs(queue, buffer, | |
3690 | TX_NOTIFY_PENDING); | |
3691 | } | |
0da9581d | 3692 | QETH_CARD_TEXT_(queue->card, 5, "pel%d", bidx); |
ce28867f JW |
3693 | |
3694 | /* prepare the queue slot for re-use: */ | |
3695 | qeth_scrub_qdio_buffer(buffer->buffer, | |
3696 | QETH_MAX_BUFFER_ELEMENTS(card)); | |
b3332930 FB |
3697 | if (qeth_init_qdio_out_buf(queue, bidx)) { |
3698 | QETH_CARD_TEXT(card, 2, "outofbuf"); | |
0da9581d | 3699 | qeth_schedule_recovery(card); |
b3332930 | 3700 | } |
0da9581d | 3701 | } else { |
b3332930 FB |
3702 | if (card->options.cq == QETH_CQ_ENABLED) { |
3703 | enum iucv_tx_notify n; | |
3704 | ||
3705 | n = qeth_compute_cq_notification( | |
3706 | buffer->buffer->element[15].sflags, 0); | |
3707 | qeth_notify_skbs(queue, buffer, n); | |
3708 | } | |
3709 | ||
3b346c18 | 3710 | qeth_clear_output_buffer(queue, buffer); |
0da9581d EL |
3711 | } |
3712 | qeth_cleanup_handled_pending(queue, bidx, 0); | |
4a71df50 FB |
3713 | } |
3714 | atomic_sub(count, &queue->used_buffers); | |
3715 | /* check if we need to do something on this outbound queue */ | |
3716 | if (card->info.type != QETH_CARD_TYPE_IQD) | |
3717 | qeth_check_outbound_queue(queue); | |
3718 | ||
3719 | netif_wake_queue(queue->card->dev); | |
3720 | if (card->options.performance_stats) | |
3721 | card->perf_stats.outbound_handler_time += qeth_get_micros() - | |
3722 | card->perf_stats.outbound_handler_start_time; | |
3723 | } | |
4a71df50 | 3724 | |
70deb016 HW |
3725 | /* We cannot use outbound queue 3 for unicast packets on HiperSockets */ |
3726 | static inline int qeth_cut_iqd_prio(struct qeth_card *card, int queue_num) | |
3727 | { | |
3728 | if ((card->info.type == QETH_CARD_TYPE_IQD) && (queue_num == 3)) | |
3729 | return 2; | |
3730 | return queue_num; | |
3731 | } | |
3732 | ||
290b8348 SR |
3733 | /** |
3734 | * Note: Function assumes that we have 4 outbound queues. | |
3735 | */ | |
4a71df50 | 3736 | int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb, |
86c0cdb9 | 3737 | int ipv) |
4a71df50 | 3738 | { |
d66cb37e | 3739 | __be16 *tci; |
290b8348 SR |
3740 | u8 tos; |
3741 | ||
290b8348 SR |
3742 | switch (card->qdio.do_prio_queueing) { |
3743 | case QETH_PRIO_Q_ING_TOS: | |
3744 | case QETH_PRIO_Q_ING_PREC: | |
3745 | switch (ipv) { | |
3746 | case 4: | |
3747 | tos = ipv4_get_dsfield(ip_hdr(skb)); | |
3748 | break; | |
3749 | case 6: | |
3750 | tos = ipv6_get_dsfield(ipv6_hdr(skb)); | |
3751 | break; | |
3752 | default: | |
3753 | return card->qdio.default_out_queue; | |
4a71df50 | 3754 | } |
290b8348 | 3755 | if (card->qdio.do_prio_queueing == QETH_PRIO_Q_ING_PREC) |
70deb016 | 3756 | return qeth_cut_iqd_prio(card, ~tos >> 6 & 3); |
290b8348 | 3757 | if (tos & IPTOS_MINCOST) |
70deb016 | 3758 | return qeth_cut_iqd_prio(card, 3); |
290b8348 SR |
3759 | if (tos & IPTOS_RELIABILITY) |
3760 | return 2; | |
3761 | if (tos & IPTOS_THROUGHPUT) | |
3762 | return 1; | |
3763 | if (tos & IPTOS_LOWDELAY) | |
3764 | return 0; | |
d66cb37e SR |
3765 | break; |
3766 | case QETH_PRIO_Q_ING_SKB: | |
3767 | if (skb->priority > 5) | |
3768 | return 0; | |
70deb016 | 3769 | return qeth_cut_iqd_prio(card, ~skb->priority >> 1 & 3); |
d66cb37e SR |
3770 | case QETH_PRIO_Q_ING_VLAN: |
3771 | tci = &((struct ethhdr *)skb->data)->h_proto; | |
6bee4e26 HW |
3772 | if (be16_to_cpu(*tci) == ETH_P_8021Q) |
3773 | return qeth_cut_iqd_prio(card, | |
3774 | ~be16_to_cpu(*(tci + 1)) >> (VLAN_PRIO_SHIFT + 1) & 3); | |
d66cb37e | 3775 | break; |
4a71df50 | 3776 | default: |
290b8348 | 3777 | break; |
4a71df50 | 3778 | } |
290b8348 | 3779 | return card->qdio.default_out_queue; |
4a71df50 FB |
3780 | } |
3781 | EXPORT_SYMBOL_GPL(qeth_get_priority_queue); | |
3782 | ||
2863c613 EC |
3783 | /** |
3784 | * qeth_get_elements_for_frags() - find number of SBALEs for skb frags. | |
3785 | * @skb: SKB address | |
3786 | * | |
3787 | * Returns the number of pages, and thus QDIO buffer elements, needed to cover | |
3788 | * fragmented part of the SKB. Returns zero for linear SKB. | |
3789 | */ | |
271648b4 FB |
3790 | int qeth_get_elements_for_frags(struct sk_buff *skb) |
3791 | { | |
2863c613 | 3792 | int cnt, elements = 0; |
271648b4 FB |
3793 | |
3794 | for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) { | |
2863c613 EC |
3795 | struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[cnt]; |
3796 | ||
3797 | elements += qeth_get_elements_for_range( | |
3798 | (addr_t)skb_frag_address(frag), | |
3799 | (addr_t)skb_frag_address(frag) + skb_frag_size(frag)); | |
271648b4 FB |
3800 | } |
3801 | return elements; | |
3802 | } | |
3803 | EXPORT_SYMBOL_GPL(qeth_get_elements_for_frags); | |
3804 | ||
ba86ceee JW |
3805 | static unsigned int qeth_count_elements(struct sk_buff *skb, int data_offset) |
3806 | { | |
3807 | unsigned int elements = qeth_get_elements_for_frags(skb); | |
3808 | addr_t end = (addr_t)skb->data + skb_headlen(skb); | |
3809 | addr_t start = (addr_t)skb->data + data_offset; | |
3810 | ||
3811 | if (start != end) | |
3812 | elements += qeth_get_elements_for_range(start, end); | |
3813 | return elements; | |
3814 | } | |
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 | { |
ba86ceee | 3831 | int elements = qeth_count_elements(skb, data_offset); |
4a71df50 | 3832 | |
2863c613 | 3833 | if ((elements + extra_elems) > QETH_MAX_BUFFER_ELEMENTS(card)) { |
14cc21b6 | 3834 | QETH_DBF_MESSAGE(2, "Invalid size of IP packet " |
4a71df50 | 3835 | "(Number=%d / Length=%d). Discarded.\n", |
2863c613 | 3836 | elements + extra_elems, skb->len); |
4a71df50 FB |
3837 | return 0; |
3838 | } | |
2863c613 | 3839 | return elements; |
4a71df50 FB |
3840 | } |
3841 | EXPORT_SYMBOL_GPL(qeth_get_elements_no); | |
3842 | ||
d4ae1f5e | 3843 | int qeth_hdr_chk_and_bounce(struct sk_buff *skb, struct qeth_hdr **hdr, int len) |
51aa165c FB |
3844 | { |
3845 | int hroom, inpage, rest; | |
3846 | ||
3847 | if (((unsigned long)skb->data & PAGE_MASK) != | |
3848 | (((unsigned long)skb->data + len - 1) & PAGE_MASK)) { | |
3849 | hroom = skb_headroom(skb); | |
3850 | inpage = PAGE_SIZE - ((unsigned long) skb->data % PAGE_SIZE); | |
3851 | rest = len - inpage; | |
3852 | if (rest > hroom) | |
3853 | return 1; | |
2863c613 | 3854 | memmove(skb->data - rest, skb->data, skb_headlen(skb)); |
51aa165c | 3855 | skb->data -= rest; |
d4ae1f5e SR |
3856 | skb->tail -= rest; |
3857 | *hdr = (struct qeth_hdr *)skb->data; | |
51aa165c FB |
3858 | QETH_DBF_MESSAGE(2, "skb bounce len: %d rest: %d\n", len, rest); |
3859 | } | |
3860 | return 0; | |
3861 | } | |
3862 | EXPORT_SYMBOL_GPL(qeth_hdr_chk_and_bounce); | |
3863 | ||
0d6f02d3 | 3864 | /** |
ba86ceee JW |
3865 | * qeth_add_hw_header() - add a HW header to an skb. |
3866 | * @skb: skb that the HW header should be added to. | |
0d6f02d3 JW |
3867 | * @hdr: double pointer to a qeth_hdr. When returning with >= 0, |
3868 | * it contains a valid pointer to a qeth_hdr. | |
a7c2f4a3 JW |
3869 | * @hdr_len: length of the HW header. |
3870 | * @proto_len: length of protocol headers that need to be in same page as the | |
3871 | * HW header. | |
0d6f02d3 JW |
3872 | * |
3873 | * Returns the pushed length. If the header can't be pushed on | |
3874 | * (eg. because it would cross a page boundary), it is allocated from | |
3875 | * the cache instead and 0 is returned. | |
ba86ceee | 3876 | * The number of needed buffer elements is returned in @elements. |
0d6f02d3 JW |
3877 | * Error to create the hdr is indicated by returning with < 0. |
3878 | */ | |
ba86ceee | 3879 | int qeth_add_hw_header(struct qeth_card *card, struct sk_buff *skb, |
a7c2f4a3 JW |
3880 | struct qeth_hdr **hdr, unsigned int hdr_len, |
3881 | unsigned int proto_len, unsigned int *elements) | |
ba86ceee JW |
3882 | { |
3883 | const unsigned int max_elements = QETH_MAX_BUFFER_ELEMENTS(card); | |
a7c2f4a3 | 3884 | const unsigned int contiguous = proto_len ? proto_len : 1; |
ba86ceee JW |
3885 | unsigned int __elements; |
3886 | addr_t start, end; | |
3887 | bool push_ok; | |
3888 | int rc; | |
3889 | ||
3890 | check_layout: | |
a7c2f4a3 | 3891 | start = (addr_t)skb->data - hdr_len; |
ba86ceee JW |
3892 | end = (addr_t)skb->data; |
3893 | ||
a7c2f4a3 | 3894 | if (qeth_get_elements_for_range(start, end + contiguous) == 1) { |
ba86ceee JW |
3895 | /* Push HW header into same page as first protocol header. */ |
3896 | push_ok = true; | |
3897 | __elements = qeth_count_elements(skb, 0); | |
a7c2f4a3 JW |
3898 | } else if (!proto_len && qeth_get_elements_for_range(start, end) == 1) { |
3899 | /* Push HW header into a new page. */ | |
3900 | push_ok = true; | |
ba86ceee | 3901 | __elements = 1 + qeth_count_elements(skb, 0); |
a7c2f4a3 JW |
3902 | } else { |
3903 | /* Use header cache, copy protocol headers up. */ | |
3904 | push_ok = false; | |
3905 | __elements = 1 + qeth_count_elements(skb, proto_len); | |
ba86ceee JW |
3906 | } |
3907 | ||
3908 | /* Compress skb to fit into one IO buffer: */ | |
3909 | if (__elements > max_elements) { | |
3910 | if (!skb_is_nonlinear(skb)) { | |
3911 | /* Drop it, no easy way of shrinking it further. */ | |
3912 | QETH_DBF_MESSAGE(2, "Dropped an oversized skb (Max Elements=%u / Actual=%u / Length=%u).\n", | |
3913 | max_elements, __elements, skb->len); | |
3914 | return -E2BIG; | |
3915 | } | |
3916 | ||
3917 | rc = skb_linearize(skb); | |
3918 | if (card->options.performance_stats) { | |
3919 | if (rc) | |
3920 | card->perf_stats.tx_linfail++; | |
3921 | else | |
3922 | card->perf_stats.tx_lin++; | |
3923 | } | |
3924 | if (rc) | |
3925 | return rc; | |
3926 | ||
3927 | /* Linearization changed the layout, re-evaluate: */ | |
3928 | goto check_layout; | |
3929 | } | |
3930 | ||
3931 | *elements = __elements; | |
3932 | /* Add the header: */ | |
3933 | if (push_ok) { | |
a7c2f4a3 JW |
3934 | *hdr = skb_push(skb, hdr_len); |
3935 | return hdr_len; | |
0d6f02d3 JW |
3936 | } |
3937 | /* fall back */ | |
3938 | *hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC); | |
3939 | if (!*hdr) | |
3940 | return -ENOMEM; | |
a7c2f4a3 JW |
3941 | /* Copy protocol headers behind HW header: */ |
3942 | skb_copy_from_linear_data(skb, ((char *)*hdr) + hdr_len, proto_len); | |
0d6f02d3 JW |
3943 | return 0; |
3944 | } | |
ba86ceee | 3945 | EXPORT_SYMBOL_GPL(qeth_add_hw_header); |
0d6f02d3 | 3946 | |
cef6ff22 JW |
3947 | static void __qeth_fill_buffer(struct sk_buff *skb, |
3948 | struct qeth_qdio_out_buffer *buf, | |
3949 | bool is_first_elem, unsigned int offset) | |
4a71df50 | 3950 | { |
384d2ef1 JW |
3951 | struct qdio_buffer *buffer = buf->buffer; |
3952 | int element = buf->next_element_to_fill; | |
cc309f83 JW |
3953 | int length = skb_headlen(skb) - offset; |
3954 | char *data = skb->data + offset; | |
384d2ef1 | 3955 | int length_here, cnt; |
4a71df50 | 3956 | |
cc309f83 | 3957 | /* map linear part into buffer element(s) */ |
4a71df50 FB |
3958 | while (length > 0) { |
3959 | /* length_here is the remaining amount of data in this page */ | |
3960 | length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE); | |
3961 | if (length < length_here) | |
3962 | length_here = length; | |
3963 | ||
3964 | buffer->element[element].addr = data; | |
3965 | buffer->element[element].length = length_here; | |
3966 | length -= length_here; | |
384d2ef1 JW |
3967 | if (is_first_elem) { |
3968 | is_first_elem = false; | |
5258830b JW |
3969 | if (length || skb_is_nonlinear(skb)) |
3970 | /* skb needs additional elements */ | |
3ec90878 | 3971 | buffer->element[element].eflags = |
5258830b | 3972 | SBAL_EFLAGS_FIRST_FRAG; |
4a71df50 | 3973 | else |
5258830b JW |
3974 | buffer->element[element].eflags = 0; |
3975 | } else { | |
3976 | buffer->element[element].eflags = | |
3977 | SBAL_EFLAGS_MIDDLE_FRAG; | |
4a71df50 FB |
3978 | } |
3979 | data += length_here; | |
3980 | element++; | |
4a71df50 | 3981 | } |
51aa165c | 3982 | |
cc309f83 | 3983 | /* map page frags into buffer element(s) */ |
51aa165c | 3984 | for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) { |
f8eb4930 JW |
3985 | skb_frag_t *frag = &skb_shinfo(skb)->frags[cnt]; |
3986 | ||
3987 | data = skb_frag_address(frag); | |
3988 | length = skb_frag_size(frag); | |
271648b4 FB |
3989 | while (length > 0) { |
3990 | length_here = PAGE_SIZE - | |
3991 | ((unsigned long) data % PAGE_SIZE); | |
3992 | if (length < length_here) | |
3993 | length_here = length; | |
3994 | ||
3995 | buffer->element[element].addr = data; | |
3996 | buffer->element[element].length = length_here; | |
3997 | buffer->element[element].eflags = | |
3998 | SBAL_EFLAGS_MIDDLE_FRAG; | |
3999 | length -= length_here; | |
4000 | data += length_here; | |
4001 | element++; | |
4002 | } | |
51aa165c FB |
4003 | } |
4004 | ||
3ec90878 JG |
4005 | if (buffer->element[element - 1].eflags) |
4006 | buffer->element[element - 1].eflags = SBAL_EFLAGS_LAST_FRAG; | |
384d2ef1 | 4007 | buf->next_element_to_fill = element; |
4a71df50 FB |
4008 | } |
4009 | ||
eaf3cc08 JW |
4010 | /** |
4011 | * qeth_fill_buffer() - map skb into an output buffer | |
4012 | * @queue: QDIO queue to submit the buffer on | |
4013 | * @buf: buffer to transport the skb | |
4014 | * @skb: skb to map into the buffer | |
4015 | * @hdr: qeth_hdr for this skb. Either at skb->data, or allocated | |
4016 | * from qeth_core_header_cache. | |
4017 | * @offset: when mapping the skb, start at skb->data + offset | |
4018 | * @hd_len: if > 0, build a dedicated header element of this size | |
4019 | */ | |
cef6ff22 JW |
4020 | static int qeth_fill_buffer(struct qeth_qdio_out_q *queue, |
4021 | struct qeth_qdio_out_buffer *buf, | |
4022 | struct sk_buff *skb, struct qeth_hdr *hdr, | |
13ddacb5 | 4023 | unsigned int offset, unsigned int hd_len) |
4a71df50 | 4024 | { |
eaf3cc08 | 4025 | struct qdio_buffer *buffer = buf->buffer; |
384d2ef1 | 4026 | bool is_first_elem = true; |
13ddacb5 | 4027 | int flush_cnt = 0; |
4a71df50 | 4028 | |
63354797 | 4029 | refcount_inc(&skb->users); |
4a71df50 FB |
4030 | skb_queue_tail(&buf->skb_list, skb); |
4031 | ||
eaf3cc08 JW |
4032 | /* build dedicated header element */ |
4033 | if (hd_len) { | |
683d718a | 4034 | int element = buf->next_element_to_fill; |
384d2ef1 JW |
4035 | is_first_elem = false; |
4036 | ||
683d718a | 4037 | buffer->element[element].addr = hdr; |
f1588177 | 4038 | buffer->element[element].length = hd_len; |
3ec90878 | 4039 | buffer->element[element].eflags = SBAL_EFLAGS_FIRST_FRAG; |
eaf3cc08 JW |
4040 | /* remember to free cache-allocated qeth_hdr: */ |
4041 | buf->is_header[element] = ((void *)hdr != skb->data); | |
683d718a FB |
4042 | buf->next_element_to_fill++; |
4043 | } | |
4044 | ||
384d2ef1 | 4045 | __qeth_fill_buffer(skb, buf, is_first_elem, offset); |
4a71df50 FB |
4046 | |
4047 | if (!queue->do_pack) { | |
847a50fd | 4048 | QETH_CARD_TEXT(queue->card, 6, "fillbfnp"); |
4a71df50 FB |
4049 | /* set state to PRIMED -> will be flushed */ |
4050 | atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); | |
4051 | flush_cnt = 1; | |
4052 | } else { | |
847a50fd | 4053 | QETH_CARD_TEXT(queue->card, 6, "fillbfpa"); |
4a71df50 FB |
4054 | if (queue->card->options.performance_stats) |
4055 | queue->card->perf_stats.skbs_sent_pack++; | |
4056 | if (buf->next_element_to_fill >= | |
4057 | QETH_MAX_BUFFER_ELEMENTS(queue->card)) { | |
4058 | /* | |
4059 | * packed buffer if full -> set state PRIMED | |
4060 | * -> will be flushed | |
4061 | */ | |
4062 | atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); | |
4063 | flush_cnt = 1; | |
4064 | } | |
4065 | } | |
4066 | return flush_cnt; | |
4067 | } | |
4068 | ||
7c2e9ba3 | 4069 | int qeth_do_send_packet_fast(struct qeth_qdio_out_q *queue, struct sk_buff *skb, |
cc309f83 | 4070 | struct qeth_hdr *hdr, unsigned int offset, |
13ddacb5 | 4071 | unsigned int hd_len) |
4a71df50 | 4072 | { |
7c2e9ba3 JW |
4073 | int index = queue->next_buf_to_fill; |
4074 | struct qeth_qdio_out_buffer *buffer = queue->bufs[index]; | |
4a71df50 | 4075 | |
4a71df50 FB |
4076 | /* |
4077 | * check if buffer is empty to make sure that we do not 'overtake' | |
4078 | * ourselves and try to fill a buffer that is already primed | |
4079 | */ | |
4080 | if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) | |
7c2e9ba3 JW |
4081 | return -EBUSY; |
4082 | queue->next_buf_to_fill = (index + 1) % QDIO_MAX_BUFFERS_PER_Q; | |
64ef8957 FB |
4083 | qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len); |
4084 | qeth_flush_buffers(queue, index, 1); | |
4a71df50 | 4085 | return 0; |
4a71df50 FB |
4086 | } |
4087 | EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast); | |
4088 | ||
4089 | int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, | |
13ddacb5 | 4090 | struct sk_buff *skb, struct qeth_hdr *hdr, |
9c3bfda9 JW |
4091 | unsigned int offset, unsigned int hd_len, |
4092 | int elements_needed) | |
4a71df50 FB |
4093 | { |
4094 | struct qeth_qdio_out_buffer *buffer; | |
4095 | int start_index; | |
4096 | int flush_count = 0; | |
4097 | int do_pack = 0; | |
4098 | int tmp; | |
4099 | int rc = 0; | |
4100 | ||
4a71df50 FB |
4101 | /* spin until we get the queue ... */ |
4102 | while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED, | |
4103 | QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED); | |
4104 | start_index = queue->next_buf_to_fill; | |
0da9581d | 4105 | buffer = queue->bufs[queue->next_buf_to_fill]; |
4a71df50 FB |
4106 | /* |
4107 | * check if buffer is empty to make sure that we do not 'overtake' | |
4108 | * ourselves and try to fill a buffer that is already primed | |
4109 | */ | |
4110 | if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) { | |
4111 | atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); | |
4112 | return -EBUSY; | |
4113 | } | |
4114 | /* check if we need to switch packing state of this queue */ | |
4115 | qeth_switch_to_packing_if_needed(queue); | |
4116 | if (queue->do_pack) { | |
4117 | do_pack = 1; | |
64ef8957 FB |
4118 | /* does packet fit in current buffer? */ |
4119 | if ((QETH_MAX_BUFFER_ELEMENTS(card) - | |
4120 | buffer->next_element_to_fill) < elements_needed) { | |
4121 | /* ... no -> set state PRIMED */ | |
4122 | atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); | |
4123 | flush_count++; | |
4124 | queue->next_buf_to_fill = | |
4125 | (queue->next_buf_to_fill + 1) % | |
4126 | QDIO_MAX_BUFFERS_PER_Q; | |
0da9581d | 4127 | buffer = queue->bufs[queue->next_buf_to_fill]; |
64ef8957 FB |
4128 | /* we did a step forward, so check buffer state |
4129 | * again */ | |
4130 | if (atomic_read(&buffer->state) != | |
4131 | QETH_QDIO_BUF_EMPTY) { | |
4132 | qeth_flush_buffers(queue, start_index, | |
779e6e1c | 4133 | flush_count); |
64ef8957 | 4134 | atomic_set(&queue->state, |
4a71df50 | 4135 | QETH_OUT_Q_UNLOCKED); |
3cdc8a25 JW |
4136 | rc = -EBUSY; |
4137 | goto out; | |
4a71df50 FB |
4138 | } |
4139 | } | |
4140 | } | |
9c3bfda9 | 4141 | tmp = qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len); |
4a71df50 FB |
4142 | queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) % |
4143 | QDIO_MAX_BUFFERS_PER_Q; | |
4144 | flush_count += tmp; | |
4a71df50 | 4145 | if (flush_count) |
779e6e1c | 4146 | qeth_flush_buffers(queue, start_index, flush_count); |
4a71df50 FB |
4147 | else if (!atomic_read(&queue->set_pci_flags_count)) |
4148 | atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH); | |
4149 | /* | |
4150 | * queue->state will go from LOCKED -> UNLOCKED or from | |
4151 | * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us | |
4152 | * (switch packing state or flush buffer to get another pci flag out). | |
4153 | * In that case we will enter this loop | |
4154 | */ | |
4155 | while (atomic_dec_return(&queue->state)) { | |
4a71df50 FB |
4156 | start_index = queue->next_buf_to_fill; |
4157 | /* check if we can go back to non-packing state */ | |
3cdc8a25 | 4158 | tmp = qeth_switch_to_nonpacking_if_needed(queue); |
4a71df50 FB |
4159 | /* |
4160 | * check if we need to flush a packing buffer to get a pci | |
4161 | * flag out on the queue | |
4162 | */ | |
3cdc8a25 JW |
4163 | if (!tmp && !atomic_read(&queue->set_pci_flags_count)) |
4164 | tmp = qeth_prep_flush_pack_buffer(queue); | |
4165 | if (tmp) { | |
4166 | qeth_flush_buffers(queue, start_index, tmp); | |
4167 | flush_count += tmp; | |
4168 | } | |
4a71df50 | 4169 | } |
3cdc8a25 | 4170 | out: |
4a71df50 FB |
4171 | /* at this point the queue is UNLOCKED again */ |
4172 | if (queue->card->options.performance_stats && do_pack) | |
4173 | queue->card->perf_stats.bufs_sent_pack += flush_count; | |
4174 | ||
4175 | return rc; | |
4176 | } | |
4177 | EXPORT_SYMBOL_GPL(qeth_do_send_packet); | |
4178 | ||
4179 | static int qeth_setadp_promisc_mode_cb(struct qeth_card *card, | |
4180 | struct qeth_reply *reply, unsigned long data) | |
4181 | { | |
686c97ee | 4182 | struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; |
4a71df50 FB |
4183 | struct qeth_ipacmd_setadpparms *setparms; |
4184 | ||
847a50fd | 4185 | QETH_CARD_TEXT(card, 4, "prmadpcb"); |
4a71df50 | 4186 | |
4a71df50 | 4187 | setparms = &(cmd->data.setadapterparms); |
686c97ee | 4188 | if (qeth_setadpparms_inspect_rc(cmd)) { |
8a593148 | 4189 | QETH_CARD_TEXT_(card, 4, "prmrc%x", cmd->hdr.return_code); |
4a71df50 FB |
4190 | setparms->data.mode = SET_PROMISC_MODE_OFF; |
4191 | } | |
4192 | card->info.promisc_mode = setparms->data.mode; | |
4193 | return 0; | |
4194 | } | |
4195 | ||
4196 | void qeth_setadp_promisc_mode(struct qeth_card *card) | |
4197 | { | |
4198 | enum qeth_ipa_promisc_modes mode; | |
4199 | struct net_device *dev = card->dev; | |
4200 | struct qeth_cmd_buffer *iob; | |
4201 | struct qeth_ipa_cmd *cmd; | |
4202 | ||
847a50fd | 4203 | QETH_CARD_TEXT(card, 4, "setprom"); |
4a71df50 FB |
4204 | |
4205 | if (((dev->flags & IFF_PROMISC) && | |
4206 | (card->info.promisc_mode == SET_PROMISC_MODE_ON)) || | |
4207 | (!(dev->flags & IFF_PROMISC) && | |
4208 | (card->info.promisc_mode == SET_PROMISC_MODE_OFF))) | |
4209 | return; | |
4210 | mode = SET_PROMISC_MODE_OFF; | |
4211 | if (dev->flags & IFF_PROMISC) | |
4212 | mode = SET_PROMISC_MODE_ON; | |
847a50fd | 4213 | QETH_CARD_TEXT_(card, 4, "mode:%x", mode); |
4a71df50 FB |
4214 | |
4215 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE, | |
ca5b20ac | 4216 | sizeof(struct qeth_ipacmd_setadpparms_hdr) + 8); |
1aec42bc TR |
4217 | if (!iob) |
4218 | return; | |
ff5caa7a | 4219 | cmd = __ipa_cmd(iob); |
4a71df50 FB |
4220 | cmd->data.setadapterparms.data.mode = mode; |
4221 | qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL); | |
4222 | } | |
4223 | EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode); | |
4224 | ||
4a71df50 FB |
4225 | struct net_device_stats *qeth_get_stats(struct net_device *dev) |
4226 | { | |
4227 | struct qeth_card *card; | |
4228 | ||
509e2562 | 4229 | card = dev->ml_priv; |
4a71df50 | 4230 | |
847a50fd | 4231 | QETH_CARD_TEXT(card, 5, "getstat"); |
4a71df50 FB |
4232 | |
4233 | return &card->stats; | |
4234 | } | |
4235 | EXPORT_SYMBOL_GPL(qeth_get_stats); | |
4236 | ||
4237 | static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card, | |
4238 | struct qeth_reply *reply, unsigned long data) | |
4239 | { | |
686c97ee | 4240 | struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; |
4a71df50 | 4241 | |
847a50fd | 4242 | QETH_CARD_TEXT(card, 4, "chgmaccb"); |
686c97ee JW |
4243 | if (qeth_setadpparms_inspect_rc(cmd)) |
4244 | return 0; | |
4a71df50 | 4245 | |
4a71df50 FB |
4246 | if (!card->options.layer2 || |
4247 | !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) { | |
99f0b85d JW |
4248 | ether_addr_copy(card->dev->dev_addr, |
4249 | cmd->data.setadapterparms.data.change_addr.addr); | |
4a71df50 FB |
4250 | card->info.mac_bits |= QETH_LAYER2_MAC_READ; |
4251 | } | |
4a71df50 FB |
4252 | return 0; |
4253 | } | |
4254 | ||
4255 | int qeth_setadpparms_change_macaddr(struct qeth_card *card) | |
4256 | { | |
4257 | int rc; | |
4258 | struct qeth_cmd_buffer *iob; | |
4259 | struct qeth_ipa_cmd *cmd; | |
4260 | ||
847a50fd | 4261 | QETH_CARD_TEXT(card, 4, "chgmac"); |
4a71df50 FB |
4262 | |
4263 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS, | |
ca5b20ac SR |
4264 | sizeof(struct qeth_ipacmd_setadpparms_hdr) + |
4265 | sizeof(struct qeth_change_addr)); | |
1aec42bc TR |
4266 | if (!iob) |
4267 | return -ENOMEM; | |
ff5caa7a | 4268 | cmd = __ipa_cmd(iob); |
4a71df50 | 4269 | cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC; |
99f0b85d JW |
4270 | cmd->data.setadapterparms.data.change_addr.addr_size = ETH_ALEN; |
4271 | ether_addr_copy(cmd->data.setadapterparms.data.change_addr.addr, | |
4272 | card->dev->dev_addr); | |
4a71df50 FB |
4273 | rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb, |
4274 | NULL); | |
4275 | return rc; | |
4276 | } | |
4277 | EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr); | |
4278 | ||
d64ecc22 EL |
4279 | static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card, |
4280 | struct qeth_reply *reply, unsigned long data) | |
4281 | { | |
686c97ee | 4282 | struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; |
d64ecc22 | 4283 | struct qeth_set_access_ctrl *access_ctrl_req; |
0f54761d | 4284 | int fallback = *(int *)reply->param; |
d64ecc22 | 4285 | |
847a50fd | 4286 | QETH_CARD_TEXT(card, 4, "setaccb"); |
686c97ee JW |
4287 | if (cmd->hdr.return_code) |
4288 | return 0; | |
4289 | qeth_setadpparms_inspect_rc(cmd); | |
d64ecc22 | 4290 | |
d64ecc22 EL |
4291 | access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl; |
4292 | QETH_DBF_TEXT_(SETUP, 2, "setaccb"); | |
4293 | QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name); | |
4294 | QETH_DBF_TEXT_(SETUP, 2, "rc=%d", | |
4295 | cmd->data.setadapterparms.hdr.return_code); | |
0f54761d SR |
4296 | if (cmd->data.setadapterparms.hdr.return_code != |
4297 | SET_ACCESS_CTRL_RC_SUCCESS) | |
4298 | QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%s,%d)==%d\n", | |
4299 | card->gdev->dev.kobj.name, | |
4300 | access_ctrl_req->subcmd_code, | |
4301 | cmd->data.setadapterparms.hdr.return_code); | |
d64ecc22 EL |
4302 | switch (cmd->data.setadapterparms.hdr.return_code) { |
4303 | case SET_ACCESS_CTRL_RC_SUCCESS: | |
d64ecc22 EL |
4304 | if (card->options.isolation == ISOLATION_MODE_NONE) { |
4305 | dev_info(&card->gdev->dev, | |
4306 | "QDIO data connection isolation is deactivated\n"); | |
4307 | } else { | |
4308 | dev_info(&card->gdev->dev, | |
4309 | "QDIO data connection isolation is activated\n"); | |
4310 | } | |
d64ecc22 | 4311 | break; |
0f54761d SR |
4312 | case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED: |
4313 | QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already " | |
4314 | "deactivated\n", dev_name(&card->gdev->dev)); | |
4315 | if (fallback) | |
4316 | card->options.isolation = card->options.prev_isolation; | |
4317 | break; | |
4318 | case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED: | |
4319 | QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already" | |
4320 | " activated\n", dev_name(&card->gdev->dev)); | |
4321 | if (fallback) | |
4322 | card->options.isolation = card->options.prev_isolation; | |
4323 | break; | |
d64ecc22 | 4324 | case SET_ACCESS_CTRL_RC_NOT_SUPPORTED: |
d64ecc22 EL |
4325 | dev_err(&card->gdev->dev, "Adapter does not " |
4326 | "support QDIO data connection isolation\n"); | |
d64ecc22 | 4327 | break; |
d64ecc22 | 4328 | case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER: |
d64ecc22 EL |
4329 | dev_err(&card->gdev->dev, |
4330 | "Adapter is dedicated. " | |
4331 | "QDIO data connection isolation not supported\n"); | |
0f54761d SR |
4332 | if (fallback) |
4333 | card->options.isolation = card->options.prev_isolation; | |
d64ecc22 | 4334 | break; |
d64ecc22 | 4335 | case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF: |
d64ecc22 EL |
4336 | dev_err(&card->gdev->dev, |
4337 | "TSO does not permit QDIO data connection isolation\n"); | |
0f54761d SR |
4338 | if (fallback) |
4339 | card->options.isolation = card->options.prev_isolation; | |
4340 | break; | |
4341 | case SET_ACCESS_CTRL_RC_REFLREL_UNSUPPORTED: | |
4342 | dev_err(&card->gdev->dev, "The adjacent switch port does not " | |
4343 | "support reflective relay mode\n"); | |
4344 | if (fallback) | |
4345 | card->options.isolation = card->options.prev_isolation; | |
4346 | break; | |
4347 | case SET_ACCESS_CTRL_RC_REFLREL_FAILED: | |
4348 | dev_err(&card->gdev->dev, "The reflective relay mode cannot be " | |
4349 | "enabled at the adjacent switch port"); | |
4350 | if (fallback) | |
4351 | card->options.isolation = card->options.prev_isolation; | |
4352 | break; | |
4353 | case SET_ACCESS_CTRL_RC_REFLREL_DEACT_FAILED: | |
4354 | dev_warn(&card->gdev->dev, "Turning off reflective relay mode " | |
4355 | "at the adjacent switch failed\n"); | |
d64ecc22 | 4356 | break; |
d64ecc22 | 4357 | default: |
d64ecc22 | 4358 | /* this should never happen */ |
0f54761d SR |
4359 | if (fallback) |
4360 | card->options.isolation = card->options.prev_isolation; | |
d64ecc22 EL |
4361 | break; |
4362 | } | |
bbb822a8 | 4363 | return 0; |
d64ecc22 EL |
4364 | } |
4365 | ||
4366 | static int qeth_setadpparms_set_access_ctrl(struct qeth_card *card, | |
0f54761d | 4367 | enum qeth_ipa_isolation_modes isolation, int fallback) |
d64ecc22 EL |
4368 | { |
4369 | int rc; | |
4370 | struct qeth_cmd_buffer *iob; | |
4371 | struct qeth_ipa_cmd *cmd; | |
4372 | struct qeth_set_access_ctrl *access_ctrl_req; | |
4373 | ||
847a50fd | 4374 | QETH_CARD_TEXT(card, 4, "setacctl"); |
d64ecc22 EL |
4375 | |
4376 | QETH_DBF_TEXT_(SETUP, 2, "setacctl"); | |
4377 | QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name); | |
4378 | ||
4379 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_ACCESS_CONTROL, | |
4380 | sizeof(struct qeth_ipacmd_setadpparms_hdr) + | |
4381 | sizeof(struct qeth_set_access_ctrl)); | |
1aec42bc TR |
4382 | if (!iob) |
4383 | return -ENOMEM; | |
ff5caa7a | 4384 | cmd = __ipa_cmd(iob); |
d64ecc22 EL |
4385 | access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl; |
4386 | access_ctrl_req->subcmd_code = isolation; | |
4387 | ||
4388 | rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_set_access_ctrl_cb, | |
0f54761d | 4389 | &fallback); |
d64ecc22 EL |
4390 | QETH_DBF_TEXT_(SETUP, 2, "rc=%d", rc); |
4391 | return rc; | |
4392 | } | |
4393 | ||
0f54761d | 4394 | int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback) |
d64ecc22 EL |
4395 | { |
4396 | int rc = 0; | |
4397 | ||
847a50fd | 4398 | QETH_CARD_TEXT(card, 4, "setactlo"); |
d64ecc22 | 4399 | |
5113fec0 UB |
4400 | if ((card->info.type == QETH_CARD_TYPE_OSD || |
4401 | card->info.type == QETH_CARD_TYPE_OSX) && | |
4402 | qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) { | |
d64ecc22 | 4403 | rc = qeth_setadpparms_set_access_ctrl(card, |
0f54761d | 4404 | card->options.isolation, fallback); |
d64ecc22 EL |
4405 | if (rc) { |
4406 | QETH_DBF_MESSAGE(3, | |
5113fec0 | 4407 | "IPA(SET_ACCESS_CTRL,%s,%d) sent failed\n", |
d64ecc22 EL |
4408 | card->gdev->dev.kobj.name, |
4409 | rc); | |
0f54761d | 4410 | rc = -EOPNOTSUPP; |
d64ecc22 EL |
4411 | } |
4412 | } else if (card->options.isolation != ISOLATION_MODE_NONE) { | |
4413 | card->options.isolation = ISOLATION_MODE_NONE; | |
4414 | ||
4415 | dev_err(&card->gdev->dev, "Adapter does not " | |
4416 | "support QDIO data connection isolation\n"); | |
4417 | rc = -EOPNOTSUPP; | |
4418 | } | |
4419 | return rc; | |
4420 | } | |
4421 | EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online); | |
4422 | ||
4a71df50 FB |
4423 | void qeth_tx_timeout(struct net_device *dev) |
4424 | { | |
4425 | struct qeth_card *card; | |
4426 | ||
509e2562 | 4427 | card = dev->ml_priv; |
847a50fd | 4428 | QETH_CARD_TEXT(card, 4, "txtimeo"); |
4a71df50 FB |
4429 | card->stats.tx_errors++; |
4430 | qeth_schedule_recovery(card); | |
4431 | } | |
4432 | EXPORT_SYMBOL_GPL(qeth_tx_timeout); | |
4433 | ||
942d6984 | 4434 | static int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum) |
4a71df50 | 4435 | { |
509e2562 | 4436 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
4437 | int rc = 0; |
4438 | ||
4439 | switch (regnum) { | |
4440 | case MII_BMCR: /* Basic mode control register */ | |
4441 | rc = BMCR_FULLDPLX; | |
4442 | if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) && | |
4443 | (card->info.link_type != QETH_LINK_TYPE_OSN) && | |
4444 | (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH)) | |
4445 | rc |= BMCR_SPEED100; | |
4446 | break; | |
4447 | case MII_BMSR: /* Basic mode status register */ | |
4448 | rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS | | |
4449 | BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL | | |
4450 | BMSR_100BASE4; | |
4451 | break; | |
4452 | case MII_PHYSID1: /* PHYS ID 1 */ | |
4453 | rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) | | |
4454 | dev->dev_addr[2]; | |
4455 | rc = (rc >> 5) & 0xFFFF; | |
4456 | break; | |
4457 | case MII_PHYSID2: /* PHYS ID 2 */ | |
4458 | rc = (dev->dev_addr[2] << 10) & 0xFFFF; | |
4459 | break; | |
4460 | case MII_ADVERTISE: /* Advertisement control reg */ | |
4461 | rc = ADVERTISE_ALL; | |
4462 | break; | |
4463 | case MII_LPA: /* Link partner ability reg */ | |
4464 | rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL | | |
4465 | LPA_100BASE4 | LPA_LPACK; | |
4466 | break; | |
4467 | case MII_EXPANSION: /* Expansion register */ | |
4468 | break; | |
4469 | case MII_DCOUNTER: /* disconnect counter */ | |
4470 | break; | |
4471 | case MII_FCSCOUNTER: /* false carrier counter */ | |
4472 | break; | |
4473 | case MII_NWAYTEST: /* N-way auto-neg test register */ | |
4474 | break; | |
4475 | case MII_RERRCOUNTER: /* rx error counter */ | |
4476 | rc = card->stats.rx_errors; | |
4477 | break; | |
4478 | case MII_SREVISION: /* silicon revision */ | |
4479 | break; | |
4480 | case MII_RESV1: /* reserved 1 */ | |
4481 | break; | |
4482 | case MII_LBRERROR: /* loopback, rx, bypass error */ | |
4483 | break; | |
4484 | case MII_PHYADDR: /* physical address */ | |
4485 | break; | |
4486 | case MII_RESV2: /* reserved 2 */ | |
4487 | break; | |
4488 | case MII_TPISTATUS: /* TPI status for 10mbps */ | |
4489 | break; | |
4490 | case MII_NCONFIG: /* network interface config */ | |
4491 | break; | |
4492 | default: | |
4493 | break; | |
4494 | } | |
4495 | return rc; | |
4496 | } | |
4a71df50 FB |
4497 | |
4498 | static int qeth_send_ipa_snmp_cmd(struct qeth_card *card, | |
4499 | struct qeth_cmd_buffer *iob, int len, | |
4500 | int (*reply_cb)(struct qeth_card *, struct qeth_reply *, | |
4501 | unsigned long), | |
4502 | void *reply_param) | |
4503 | { | |
4504 | u16 s1, s2; | |
4505 | ||
847a50fd | 4506 | QETH_CARD_TEXT(card, 4, "sendsnmp"); |
4a71df50 FB |
4507 | |
4508 | memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); | |
4509 | memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), | |
4510 | &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); | |
4511 | /* adjust PDU length fields in IPA_PDU_HEADER */ | |
4512 | s1 = (u32) IPA_PDU_HEADER_SIZE + len; | |
4513 | s2 = (u32) len; | |
4514 | memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); | |
4515 | memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); | |
4516 | memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); | |
4517 | memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); | |
4518 | return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob, | |
4519 | reply_cb, reply_param); | |
4520 | } | |
4521 | ||
4522 | static int qeth_snmp_command_cb(struct qeth_card *card, | |
4523 | struct qeth_reply *reply, unsigned long sdata) | |
4524 | { | |
4525 | struct qeth_ipa_cmd *cmd; | |
4526 | struct qeth_arp_query_info *qinfo; | |
4527 | struct qeth_snmp_cmd *snmp; | |
4528 | unsigned char *data; | |
4529 | __u16 data_len; | |
4530 | ||
847a50fd | 4531 | QETH_CARD_TEXT(card, 3, "snpcmdcb"); |
4a71df50 FB |
4532 | |
4533 | cmd = (struct qeth_ipa_cmd *) sdata; | |
4534 | data = (unsigned char *)((char *)cmd - reply->offset); | |
4535 | qinfo = (struct qeth_arp_query_info *) reply->param; | |
4536 | snmp = &cmd->data.setadapterparms.data.snmp; | |
4537 | ||
4538 | if (cmd->hdr.return_code) { | |
8a593148 | 4539 | QETH_CARD_TEXT_(card, 4, "scer1%x", cmd->hdr.return_code); |
4a71df50 FB |
4540 | return 0; |
4541 | } | |
4542 | if (cmd->data.setadapterparms.hdr.return_code) { | |
4543 | cmd->hdr.return_code = | |
4544 | cmd->data.setadapterparms.hdr.return_code; | |
8a593148 | 4545 | QETH_CARD_TEXT_(card, 4, "scer2%x", cmd->hdr.return_code); |
4a71df50 FB |
4546 | return 0; |
4547 | } | |
4548 | data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data)); | |
4549 | if (cmd->data.setadapterparms.hdr.seq_no == 1) | |
4550 | data_len -= (__u16)((char *)&snmp->data - (char *)cmd); | |
4551 | else | |
4552 | data_len -= (__u16)((char *)&snmp->request - (char *)cmd); | |
4553 | ||
4554 | /* check if there is enough room in userspace */ | |
4555 | if ((qinfo->udata_len - qinfo->udata_offset) < data_len) { | |
847a50fd | 4556 | QETH_CARD_TEXT_(card, 4, "scer3%i", -ENOMEM); |
e0a8114c | 4557 | cmd->hdr.return_code = IPA_RC_ENOMEM; |
4a71df50 FB |
4558 | return 0; |
4559 | } | |
847a50fd | 4560 | QETH_CARD_TEXT_(card, 4, "snore%i", |
4a71df50 | 4561 | cmd->data.setadapterparms.hdr.used_total); |
847a50fd | 4562 | QETH_CARD_TEXT_(card, 4, "sseqn%i", |
4a71df50 FB |
4563 | cmd->data.setadapterparms.hdr.seq_no); |
4564 | /*copy entries to user buffer*/ | |
4565 | if (cmd->data.setadapterparms.hdr.seq_no == 1) { | |
4566 | memcpy(qinfo->udata + qinfo->udata_offset, | |
4567 | (char *)snmp, | |
4568 | data_len + offsetof(struct qeth_snmp_cmd, data)); | |
4569 | qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data); | |
4570 | } else { | |
4571 | memcpy(qinfo->udata + qinfo->udata_offset, | |
4572 | (char *)&snmp->request, data_len); | |
4573 | } | |
4574 | qinfo->udata_offset += data_len; | |
4575 | /* check if all replies received ... */ | |
847a50fd | 4576 | QETH_CARD_TEXT_(card, 4, "srtot%i", |
4a71df50 | 4577 | cmd->data.setadapterparms.hdr.used_total); |
847a50fd | 4578 | QETH_CARD_TEXT_(card, 4, "srseq%i", |
4a71df50 FB |
4579 | cmd->data.setadapterparms.hdr.seq_no); |
4580 | if (cmd->data.setadapterparms.hdr.seq_no < | |
4581 | cmd->data.setadapterparms.hdr.used_total) | |
4582 | return 1; | |
4583 | return 0; | |
4584 | } | |
4585 | ||
942d6984 | 4586 | static int qeth_snmp_command(struct qeth_card *card, char __user *udata) |
4a71df50 FB |
4587 | { |
4588 | struct qeth_cmd_buffer *iob; | |
4589 | struct qeth_ipa_cmd *cmd; | |
4590 | struct qeth_snmp_ureq *ureq; | |
6fb392b1 | 4591 | unsigned int req_len; |
4a71df50 FB |
4592 | struct qeth_arp_query_info qinfo = {0, }; |
4593 | int rc = 0; | |
4594 | ||
847a50fd | 4595 | QETH_CARD_TEXT(card, 3, "snmpcmd"); |
4a71df50 FB |
4596 | |
4597 | if (card->info.guestlan) | |
4598 | return -EOPNOTSUPP; | |
4599 | ||
4600 | if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) && | |
4601 | (!card->options.layer2)) { | |
4a71df50 FB |
4602 | return -EOPNOTSUPP; |
4603 | } | |
4604 | /* skip 4 bytes (data_len struct member) to get req_len */ | |
4605 | if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int))) | |
4606 | return -EFAULT; | |
6fb392b1 UB |
4607 | if (req_len > (QETH_BUFSIZE - IPA_PDU_HEADER_SIZE - |
4608 | sizeof(struct qeth_ipacmd_hdr) - | |
4609 | sizeof(struct qeth_ipacmd_setadpparms_hdr))) | |
4610 | return -EINVAL; | |
4986f3f0 JL |
4611 | ureq = memdup_user(udata, req_len + sizeof(struct qeth_snmp_ureq_hdr)); |
4612 | if (IS_ERR(ureq)) { | |
847a50fd | 4613 | QETH_CARD_TEXT(card, 2, "snmpnome"); |
4986f3f0 | 4614 | return PTR_ERR(ureq); |
4a71df50 FB |
4615 | } |
4616 | qinfo.udata_len = ureq->hdr.data_len; | |
4617 | qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL); | |
4618 | if (!qinfo.udata) { | |
4619 | kfree(ureq); | |
4620 | return -ENOMEM; | |
4621 | } | |
4622 | qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr); | |
4623 | ||
4624 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL, | |
4625 | QETH_SNMP_SETADP_CMDLENGTH + req_len); | |
1aec42bc TR |
4626 | if (!iob) { |
4627 | rc = -ENOMEM; | |
4628 | goto out; | |
4629 | } | |
ff5caa7a | 4630 | cmd = __ipa_cmd(iob); |
4a71df50 FB |
4631 | memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len); |
4632 | rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len, | |
4633 | qeth_snmp_command_cb, (void *)&qinfo); | |
4634 | if (rc) | |
14cc21b6 | 4635 | QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n", |
4a71df50 FB |
4636 | QETH_CARD_IFNAME(card), rc); |
4637 | else { | |
4638 | if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) | |
4639 | rc = -EFAULT; | |
4640 | } | |
1aec42bc | 4641 | out: |
4a71df50 FB |
4642 | kfree(ureq); |
4643 | kfree(qinfo.udata); | |
4644 | return rc; | |
4645 | } | |
4a71df50 | 4646 | |
c3ab96f3 FB |
4647 | static int qeth_setadpparms_query_oat_cb(struct qeth_card *card, |
4648 | struct qeth_reply *reply, unsigned long data) | |
4649 | { | |
686c97ee | 4650 | struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data; |
c3ab96f3 FB |
4651 | struct qeth_qoat_priv *priv; |
4652 | char *resdata; | |
4653 | int resdatalen; | |
4654 | ||
4655 | QETH_CARD_TEXT(card, 3, "qoatcb"); | |
686c97ee JW |
4656 | if (qeth_setadpparms_inspect_rc(cmd)) |
4657 | return 0; | |
c3ab96f3 | 4658 | |
c3ab96f3 FB |
4659 | priv = (struct qeth_qoat_priv *)reply->param; |
4660 | resdatalen = cmd->data.setadapterparms.hdr.cmdlength; | |
4661 | resdata = (char *)data + 28; | |
4662 | ||
4663 | if (resdatalen > (priv->buffer_len - priv->response_len)) { | |
4664 | cmd->hdr.return_code = IPA_RC_FFFF; | |
4665 | return 0; | |
4666 | } | |
4667 | ||
4668 | memcpy((priv->buffer + priv->response_len), resdata, | |
4669 | resdatalen); | |
4670 | priv->response_len += resdatalen; | |
4671 | ||
4672 | if (cmd->data.setadapterparms.hdr.seq_no < | |
4673 | cmd->data.setadapterparms.hdr.used_total) | |
4674 | return 1; | |
4675 | return 0; | |
4676 | } | |
4677 | ||
942d6984 | 4678 | static int qeth_query_oat_command(struct qeth_card *card, char __user *udata) |
c3ab96f3 FB |
4679 | { |
4680 | int rc = 0; | |
4681 | struct qeth_cmd_buffer *iob; | |
4682 | struct qeth_ipa_cmd *cmd; | |
4683 | struct qeth_query_oat *oat_req; | |
4684 | struct qeth_query_oat_data oat_data; | |
4685 | struct qeth_qoat_priv priv; | |
4686 | void __user *tmp; | |
4687 | ||
4688 | QETH_CARD_TEXT(card, 3, "qoatcmd"); | |
4689 | ||
4690 | if (!qeth_adp_supported(card, IPA_SETADP_QUERY_OAT)) { | |
4691 | rc = -EOPNOTSUPP; | |
4692 | goto out; | |
4693 | } | |
4694 | ||
4695 | if (copy_from_user(&oat_data, udata, | |
4696 | sizeof(struct qeth_query_oat_data))) { | |
4697 | rc = -EFAULT; | |
4698 | goto out; | |
4699 | } | |
4700 | ||
4701 | priv.buffer_len = oat_data.buffer_len; | |
4702 | priv.response_len = 0; | |
aec45e85 | 4703 | priv.buffer = vzalloc(oat_data.buffer_len); |
c3ab96f3 FB |
4704 | if (!priv.buffer) { |
4705 | rc = -ENOMEM; | |
4706 | goto out; | |
4707 | } | |
4708 | ||
4709 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_OAT, | |
4710 | sizeof(struct qeth_ipacmd_setadpparms_hdr) + | |
4711 | sizeof(struct qeth_query_oat)); | |
1aec42bc TR |
4712 | if (!iob) { |
4713 | rc = -ENOMEM; | |
4714 | goto out_free; | |
4715 | } | |
ff5caa7a | 4716 | cmd = __ipa_cmd(iob); |
c3ab96f3 FB |
4717 | oat_req = &cmd->data.setadapterparms.data.query_oat; |
4718 | oat_req->subcmd_code = oat_data.command; | |
4719 | ||
4720 | rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_query_oat_cb, | |
4721 | &priv); | |
4722 | if (!rc) { | |
4723 | if (is_compat_task()) | |
4724 | tmp = compat_ptr(oat_data.ptr); | |
4725 | else | |
4726 | tmp = (void __user *)(unsigned long)oat_data.ptr; | |
4727 | ||
4728 | if (copy_to_user(tmp, priv.buffer, | |
4729 | priv.response_len)) { | |
4730 | rc = -EFAULT; | |
4731 | goto out_free; | |
4732 | } | |
4733 | ||
4734 | oat_data.response_len = priv.response_len; | |
4735 | ||
4736 | if (copy_to_user(udata, &oat_data, | |
4737 | sizeof(struct qeth_query_oat_data))) | |
4738 | rc = -EFAULT; | |
4739 | } else | |
4740 | if (rc == IPA_RC_FFFF) | |
4741 | rc = -EFAULT; | |
4742 | ||
4743 | out_free: | |
aec45e85 | 4744 | vfree(priv.buffer); |
c3ab96f3 FB |
4745 | out: |
4746 | return rc; | |
4747 | } | |
c3ab96f3 | 4748 | |
e71e4072 HC |
4749 | static int qeth_query_card_info_cb(struct qeth_card *card, |
4750 | struct qeth_reply *reply, unsigned long data) | |
02d5cb5b | 4751 | { |
686c97ee JW |
4752 | struct carrier_info *carrier_info = (struct carrier_info *)reply->param; |
4753 | struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data; | |
02d5cb5b | 4754 | struct qeth_query_card_info *card_info; |
02d5cb5b EC |
4755 | |
4756 | QETH_CARD_TEXT(card, 2, "qcrdincb"); | |
686c97ee JW |
4757 | if (qeth_setadpparms_inspect_rc(cmd)) |
4758 | return 0; | |
02d5cb5b | 4759 | |
686c97ee JW |
4760 | card_info = &cmd->data.setadapterparms.data.card_info; |
4761 | carrier_info->card_type = card_info->card_type; | |
4762 | carrier_info->port_mode = card_info->port_mode; | |
4763 | carrier_info->port_speed = card_info->port_speed; | |
02d5cb5b EC |
4764 | return 0; |
4765 | } | |
4766 | ||
bca51650 | 4767 | static int qeth_query_card_info(struct qeth_card *card, |
02d5cb5b EC |
4768 | struct carrier_info *carrier_info) |
4769 | { | |
4770 | struct qeth_cmd_buffer *iob; | |
4771 | ||
4772 | QETH_CARD_TEXT(card, 2, "qcrdinfo"); | |
4773 | if (!qeth_adp_supported(card, IPA_SETADP_QUERY_CARD_INFO)) | |
4774 | return -EOPNOTSUPP; | |
4775 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_CARD_INFO, | |
4776 | sizeof(struct qeth_ipacmd_setadpparms_hdr)); | |
1aec42bc TR |
4777 | if (!iob) |
4778 | return -ENOMEM; | |
02d5cb5b EC |
4779 | return qeth_send_ipa_cmd(card, iob, qeth_query_card_info_cb, |
4780 | (void *)carrier_info); | |
4781 | } | |
02d5cb5b | 4782 | |
ec61bd2f JW |
4783 | /** |
4784 | * qeth_vm_request_mac() - Request a hypervisor-managed MAC address | |
4785 | * @card: pointer to a qeth_card | |
4786 | * | |
4787 | * Returns | |
4788 | * 0, if a MAC address has been set for the card's netdevice | |
4789 | * a return code, for various error conditions | |
4790 | */ | |
4791 | int qeth_vm_request_mac(struct qeth_card *card) | |
4792 | { | |
4793 | struct diag26c_mac_resp *response; | |
4794 | struct diag26c_mac_req *request; | |
4795 | struct ccw_dev_id id; | |
4796 | int rc; | |
4797 | ||
4798 | QETH_DBF_TEXT(SETUP, 2, "vmreqmac"); | |
4799 | ||
ec61bd2f JW |
4800 | request = kzalloc(sizeof(*request), GFP_KERNEL | GFP_DMA); |
4801 | response = kzalloc(sizeof(*response), GFP_KERNEL | GFP_DMA); | |
4802 | if (!request || !response) { | |
4803 | rc = -ENOMEM; | |
4804 | goto out; | |
4805 | } | |
4806 | ||
46646105 | 4807 | ccw_device_get_id(CARD_DDEV(card), &id); |
ec61bd2f JW |
4808 | request->resp_buf_len = sizeof(*response); |
4809 | request->resp_version = DIAG26C_VERSION2; | |
4810 | request->op_code = DIAG26C_GET_MAC; | |
4811 | request->devno = id.devno; | |
4812 | ||
615dff22 | 4813 | QETH_DBF_HEX(CTRL, 2, request, sizeof(*request)); |
ec61bd2f | 4814 | rc = diag26c(request, response, DIAG26C_MAC_SERVICES); |
615dff22 | 4815 | QETH_DBF_HEX(CTRL, 2, request, sizeof(*request)); |
ec61bd2f JW |
4816 | if (rc) |
4817 | goto out; | |
615dff22 | 4818 | QETH_DBF_HEX(CTRL, 2, response, sizeof(*response)); |
ec61bd2f JW |
4819 | |
4820 | if (request->resp_buf_len < sizeof(*response) || | |
4821 | response->version != request->resp_version) { | |
4822 | rc = -EIO; | |
4823 | QETH_DBF_TEXT(SETUP, 2, "badresp"); | |
4824 | QETH_DBF_HEX(SETUP, 2, &request->resp_buf_len, | |
4825 | sizeof(request->resp_buf_len)); | |
4826 | } else if (!is_valid_ether_addr(response->mac)) { | |
4827 | rc = -EINVAL; | |
4828 | QETH_DBF_TEXT(SETUP, 2, "badmac"); | |
4829 | QETH_DBF_HEX(SETUP, 2, response->mac, ETH_ALEN); | |
4830 | } else { | |
4831 | ether_addr_copy(card->dev->dev_addr, response->mac); | |
4832 | } | |
4833 | ||
4834 | out: | |
4835 | kfree(response); | |
4836 | kfree(request); | |
4837 | return rc; | |
4838 | } | |
4839 | EXPORT_SYMBOL_GPL(qeth_vm_request_mac); | |
4840 | ||
cef6ff22 | 4841 | static int qeth_get_qdio_q_format(struct qeth_card *card) |
4a71df50 | 4842 | { |
aa59004b JW |
4843 | if (card->info.type == QETH_CARD_TYPE_IQD) |
4844 | return QDIO_IQDIO_QFMT; | |
4845 | else | |
4846 | return QDIO_QETH_QFMT; | |
4a71df50 FB |
4847 | } |
4848 | ||
d0ff1f52 UB |
4849 | static void qeth_determine_capabilities(struct qeth_card *card) |
4850 | { | |
4851 | int rc; | |
4852 | int length; | |
4853 | char *prcd; | |
4854 | struct ccw_device *ddev; | |
4855 | int ddev_offline = 0; | |
4856 | ||
4857 | QETH_DBF_TEXT(SETUP, 2, "detcapab"); | |
4858 | ddev = CARD_DDEV(card); | |
4859 | if (!ddev->online) { | |
4860 | ddev_offline = 1; | |
4861 | rc = ccw_device_set_online(ddev); | |
4862 | if (rc) { | |
4863 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); | |
4864 | goto out; | |
4865 | } | |
4866 | } | |
4867 | ||
4868 | rc = qeth_read_conf_data(card, (void **) &prcd, &length); | |
4869 | if (rc) { | |
4870 | QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n", | |
4871 | dev_name(&card->gdev->dev), rc); | |
4872 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); | |
4873 | goto out_offline; | |
4874 | } | |
4875 | qeth_configure_unitaddr(card, prcd); | |
7e665afb UB |
4876 | if (ddev_offline) |
4877 | qeth_configure_blkt_default(card, prcd); | |
d0ff1f52 UB |
4878 | kfree(prcd); |
4879 | ||
4880 | rc = qdio_get_ssqd_desc(ddev, &card->ssqd); | |
4881 | if (rc) | |
4882 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); | |
4883 | ||
0da9581d | 4884 | QETH_DBF_TEXT_(SETUP, 2, "qfmt%d", card->ssqd.qfmt); |
bbeb2414 JW |
4885 | QETH_DBF_TEXT_(SETUP, 2, "ac1:%02x", card->ssqd.qdioac1); |
4886 | QETH_DBF_TEXT_(SETUP, 2, "ac2:%04x", card->ssqd.qdioac2); | |
4887 | QETH_DBF_TEXT_(SETUP, 2, "ac3:%04x", card->ssqd.qdioac3); | |
0da9581d EL |
4888 | QETH_DBF_TEXT_(SETUP, 2, "icnt%d", card->ssqd.icnt); |
4889 | if (!((card->ssqd.qfmt != QDIO_IQDIO_QFMT) || | |
4890 | ((card->ssqd.qdioac1 & CHSC_AC1_INITIATE_INPUTQ) == 0) || | |
4891 | ((card->ssqd.qdioac3 & CHSC_AC3_FORMAT2_CQ_AVAILABLE) == 0))) { | |
4892 | dev_info(&card->gdev->dev, | |
4893 | "Completion Queueing supported\n"); | |
4894 | } else { | |
4895 | card->options.cq = QETH_CQ_NOTAVAILABLE; | |
4896 | } | |
4897 | ||
4898 | ||
d0ff1f52 UB |
4899 | out_offline: |
4900 | if (ddev_offline == 1) | |
4901 | ccw_device_set_offline(ddev); | |
4902 | out: | |
4903 | return; | |
4904 | } | |
4905 | ||
cef6ff22 JW |
4906 | static void qeth_qdio_establish_cq(struct qeth_card *card, |
4907 | struct qdio_buffer **in_sbal_ptrs, | |
4908 | void (**queue_start_poll) | |
4909 | (struct ccw_device *, int, | |
4910 | unsigned long)) | |
4911 | { | |
0da9581d EL |
4912 | int i; |
4913 | ||
4914 | if (card->options.cq == QETH_CQ_ENABLED) { | |
4915 | int offset = QDIO_MAX_BUFFERS_PER_Q * | |
4916 | (card->qdio.no_in_queues - 1); | |
0da9581d EL |
4917 | for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) { |
4918 | in_sbal_ptrs[offset + i] = (struct qdio_buffer *) | |
4919 | virt_to_phys(card->qdio.c_q->bufs[i].buffer); | |
4920 | } | |
4921 | ||
4922 | queue_start_poll[card->qdio.no_in_queues - 1] = NULL; | |
4923 | } | |
4924 | } | |
4925 | ||
4a71df50 FB |
4926 | static int qeth_qdio_establish(struct qeth_card *card) |
4927 | { | |
4928 | struct qdio_initialize init_data; | |
4929 | char *qib_param_field; | |
4930 | struct qdio_buffer **in_sbal_ptrs; | |
104ea556 | 4931 | void (**queue_start_poll) (struct ccw_device *, int, unsigned long); |
4a71df50 FB |
4932 | struct qdio_buffer **out_sbal_ptrs; |
4933 | int i, j, k; | |
4934 | int rc = 0; | |
4935 | ||
d11ba0c4 | 4936 | QETH_DBF_TEXT(SETUP, 2, "qdioest"); |
4a71df50 | 4937 | |
6396bb22 KC |
4938 | qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q, |
4939 | GFP_KERNEL); | |
104ea556 | 4940 | if (!qib_param_field) { |
4941 | rc = -ENOMEM; | |
4942 | goto out_free_nothing; | |
4943 | } | |
4a71df50 FB |
4944 | |
4945 | qeth_create_qib_param_field(card, qib_param_field); | |
4946 | qeth_create_qib_param_field_blkt(card, qib_param_field); | |
4947 | ||
6396bb22 KC |
4948 | in_sbal_ptrs = kcalloc(card->qdio.no_in_queues * QDIO_MAX_BUFFERS_PER_Q, |
4949 | sizeof(void *), | |
4a71df50 FB |
4950 | GFP_KERNEL); |
4951 | if (!in_sbal_ptrs) { | |
104ea556 | 4952 | rc = -ENOMEM; |
4953 | goto out_free_qib_param; | |
4a71df50 | 4954 | } |
0da9581d | 4955 | for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) { |
4a71df50 FB |
4956 | in_sbal_ptrs[i] = (struct qdio_buffer *) |
4957 | virt_to_phys(card->qdio.in_q->bufs[i].buffer); | |
0da9581d | 4958 | } |
4a71df50 | 4959 | |
6396bb22 | 4960 | queue_start_poll = kcalloc(card->qdio.no_in_queues, sizeof(void *), |
0da9581d | 4961 | GFP_KERNEL); |
104ea556 | 4962 | if (!queue_start_poll) { |
4963 | rc = -ENOMEM; | |
4964 | goto out_free_in_sbals; | |
4965 | } | |
0da9581d | 4966 | for (i = 0; i < card->qdio.no_in_queues; ++i) |
7bcd64eb | 4967 | queue_start_poll[i] = qeth_qdio_start_poll; |
0da9581d EL |
4968 | |
4969 | qeth_qdio_establish_cq(card, in_sbal_ptrs, queue_start_poll); | |
104ea556 | 4970 | |
4a71df50 | 4971 | out_sbal_ptrs = |
6396bb22 KC |
4972 | kcalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q, |
4973 | sizeof(void *), | |
4974 | GFP_KERNEL); | |
4a71df50 | 4975 | if (!out_sbal_ptrs) { |
104ea556 | 4976 | rc = -ENOMEM; |
4977 | goto out_free_queue_start_poll; | |
4a71df50 FB |
4978 | } |
4979 | for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i) | |
4980 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) { | |
4981 | out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys( | |
0da9581d | 4982 | card->qdio.out_qs[i]->bufs[j]->buffer); |
4a71df50 FB |
4983 | } |
4984 | ||
4985 | memset(&init_data, 0, sizeof(struct qdio_initialize)); | |
4986 | init_data.cdev = CARD_DDEV(card); | |
4987 | init_data.q_format = qeth_get_qdio_q_format(card); | |
4988 | init_data.qib_param_field_format = 0; | |
4989 | init_data.qib_param_field = qib_param_field; | |
0da9581d | 4990 | init_data.no_input_qs = card->qdio.no_in_queues; |
4a71df50 | 4991 | init_data.no_output_qs = card->qdio.no_out_queues; |
7bcd64eb JW |
4992 | init_data.input_handler = qeth_qdio_input_handler; |
4993 | init_data.output_handler = qeth_qdio_output_handler; | |
e58b0d90 | 4994 | init_data.queue_start_poll_array = queue_start_poll; |
4a71df50 | 4995 | init_data.int_parm = (unsigned long) card; |
4a71df50 FB |
4996 | init_data.input_sbal_addr_array = (void **) in_sbal_ptrs; |
4997 | init_data.output_sbal_addr_array = (void **) out_sbal_ptrs; | |
0da9581d | 4998 | init_data.output_sbal_state_array = card->qdio.out_bufstates; |
3d6c76ff | 4999 | init_data.scan_threshold = |
0fa81cd4 | 5000 | (card->info.type == QETH_CARD_TYPE_IQD) ? 1 : 32; |
4a71df50 FB |
5001 | |
5002 | if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED, | |
5003 | QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) { | |
cc961d40 JG |
5004 | rc = qdio_allocate(&init_data); |
5005 | if (rc) { | |
5006 | atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); | |
5007 | goto out; | |
5008 | } | |
5009 | rc = qdio_establish(&init_data); | |
5010 | if (rc) { | |
4a71df50 | 5011 | atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); |
cc961d40 JG |
5012 | qdio_free(CARD_DDEV(card)); |
5013 | } | |
4a71df50 | 5014 | } |
0da9581d EL |
5015 | |
5016 | switch (card->options.cq) { | |
5017 | case QETH_CQ_ENABLED: | |
5018 | dev_info(&card->gdev->dev, "Completion Queue support enabled"); | |
5019 | break; | |
5020 | case QETH_CQ_DISABLED: | |
5021 | dev_info(&card->gdev->dev, "Completion Queue support disabled"); | |
5022 | break; | |
5023 | default: | |
5024 | break; | |
5025 | } | |
cc961d40 | 5026 | out: |
4a71df50 | 5027 | kfree(out_sbal_ptrs); |
104ea556 | 5028 | out_free_queue_start_poll: |
5029 | kfree(queue_start_poll); | |
5030 | out_free_in_sbals: | |
4a71df50 | 5031 | kfree(in_sbal_ptrs); |
104ea556 | 5032 | out_free_qib_param: |
4a71df50 | 5033 | kfree(qib_param_field); |
104ea556 | 5034 | out_free_nothing: |
4a71df50 FB |
5035 | return rc; |
5036 | } | |
5037 | ||
5038 | static void qeth_core_free_card(struct qeth_card *card) | |
5039 | { | |
d11ba0c4 PT |
5040 | QETH_DBF_TEXT(SETUP, 2, "freecrd"); |
5041 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 FB |
5042 | qeth_clean_channel(&card->read); |
5043 | qeth_clean_channel(&card->write); | |
f15cdaf2 | 5044 | qeth_clean_channel(&card->data); |
4a71df50 | 5045 | qeth_free_qdio_buffers(card); |
6bcac508 | 5046 | unregister_service_level(&card->qeth_service_level); |
4a71df50 FB |
5047 | kfree(card); |
5048 | } | |
5049 | ||
395672e0 SR |
5050 | void qeth_trace_features(struct qeth_card *card) |
5051 | { | |
5052 | QETH_CARD_TEXT(card, 2, "features"); | |
4d7def2a TR |
5053 | QETH_CARD_HEX(card, 2, &card->options.ipa4, sizeof(card->options.ipa4)); |
5054 | QETH_CARD_HEX(card, 2, &card->options.ipa6, sizeof(card->options.ipa6)); | |
5055 | QETH_CARD_HEX(card, 2, &card->options.adp, sizeof(card->options.adp)); | |
5056 | QETH_CARD_HEX(card, 2, &card->info.diagass_support, | |
5057 | sizeof(card->info.diagass_support)); | |
395672e0 SR |
5058 | } |
5059 | EXPORT_SYMBOL_GPL(qeth_trace_features); | |
5060 | ||
4a71df50 | 5061 | static struct ccw_device_id qeth_ids[] = { |
5113fec0 UB |
5062 | {CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01), |
5063 | .driver_info = QETH_CARD_TYPE_OSD}, | |
5064 | {CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05), | |
5065 | .driver_info = QETH_CARD_TYPE_IQD}, | |
5066 | {CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06), | |
5067 | .driver_info = QETH_CARD_TYPE_OSN}, | |
5068 | {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03), | |
5069 | .driver_info = QETH_CARD_TYPE_OSM}, | |
5070 | {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02), | |
5071 | .driver_info = QETH_CARD_TYPE_OSX}, | |
4a71df50 FB |
5072 | {}, |
5073 | }; | |
5074 | MODULE_DEVICE_TABLE(ccw, qeth_ids); | |
5075 | ||
5076 | static struct ccw_driver qeth_ccw_driver = { | |
3bda058b | 5077 | .driver = { |
3e70b3b8 | 5078 | .owner = THIS_MODULE, |
3bda058b SO |
5079 | .name = "qeth", |
5080 | }, | |
4a71df50 FB |
5081 | .ids = qeth_ids, |
5082 | .probe = ccwgroup_probe_ccwdev, | |
5083 | .remove = ccwgroup_remove_ccwdev, | |
5084 | }; | |
5085 | ||
4a71df50 FB |
5086 | int qeth_core_hardsetup_card(struct qeth_card *card) |
5087 | { | |
6ebb7f8d | 5088 | int retries = 3; |
4a71df50 FB |
5089 | int rc; |
5090 | ||
d11ba0c4 | 5091 | QETH_DBF_TEXT(SETUP, 2, "hrdsetup"); |
4a71df50 | 5092 | atomic_set(&card->force_alloc_skb, 0); |
725b9c04 | 5093 | qeth_update_from_chp_desc(card); |
4a71df50 | 5094 | retry: |
6ebb7f8d | 5095 | if (retries < 3) |
74eacdb9 FB |
5096 | QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n", |
5097 | dev_name(&card->gdev->dev)); | |
22ae2790 | 5098 | rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD); |
aa909224 UB |
5099 | ccw_device_set_offline(CARD_DDEV(card)); |
5100 | ccw_device_set_offline(CARD_WDEV(card)); | |
5101 | ccw_device_set_offline(CARD_RDEV(card)); | |
22ae2790 | 5102 | qdio_free(CARD_DDEV(card)); |
aa909224 UB |
5103 | rc = ccw_device_set_online(CARD_RDEV(card)); |
5104 | if (rc) | |
5105 | goto retriable; | |
5106 | rc = ccw_device_set_online(CARD_WDEV(card)); | |
5107 | if (rc) | |
5108 | goto retriable; | |
5109 | rc = ccw_device_set_online(CARD_DDEV(card)); | |
5110 | if (rc) | |
5111 | goto retriable; | |
aa909224 | 5112 | retriable: |
4a71df50 | 5113 | if (rc == -ERESTARTSYS) { |
d11ba0c4 | 5114 | QETH_DBF_TEXT(SETUP, 2, "break1"); |
4a71df50 FB |
5115 | return rc; |
5116 | } else if (rc) { | |
d11ba0c4 | 5117 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
6ebb7f8d | 5118 | if (--retries < 0) |
4a71df50 FB |
5119 | goto out; |
5120 | else | |
5121 | goto retry; | |
5122 | } | |
d0ff1f52 | 5123 | qeth_determine_capabilities(card); |
4a71df50 FB |
5124 | qeth_init_tokens(card); |
5125 | qeth_init_func_level(card); | |
5126 | rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb); | |
5127 | if (rc == -ERESTARTSYS) { | |
d11ba0c4 | 5128 | QETH_DBF_TEXT(SETUP, 2, "break2"); |
4a71df50 FB |
5129 | return rc; |
5130 | } else if (rc) { | |
d11ba0c4 | 5131 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
4a71df50 FB |
5132 | if (--retries < 0) |
5133 | goto out; | |
5134 | else | |
5135 | goto retry; | |
5136 | } | |
5137 | rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb); | |
5138 | if (rc == -ERESTARTSYS) { | |
d11ba0c4 | 5139 | QETH_DBF_TEXT(SETUP, 2, "break3"); |
4a71df50 FB |
5140 | return rc; |
5141 | } else if (rc) { | |
d11ba0c4 | 5142 | QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); |
4a71df50 FB |
5143 | if (--retries < 0) |
5144 | goto out; | |
5145 | else | |
5146 | goto retry; | |
5147 | } | |
908abbb5 | 5148 | card->read_or_write_problem = 0; |
4a71df50 FB |
5149 | rc = qeth_mpc_initialize(card); |
5150 | if (rc) { | |
d11ba0c4 | 5151 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); |
4a71df50 FB |
5152 | goto out; |
5153 | } | |
1da74b1c | 5154 | |
10340510 JW |
5155 | rc = qeth_send_startlan(card); |
5156 | if (rc) { | |
5157 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); | |
5158 | if (rc == IPA_RC_LAN_OFFLINE) { | |
5159 | dev_warn(&card->gdev->dev, | |
5160 | "The LAN is offline\n"); | |
5161 | card->lan_online = 0; | |
5162 | } else { | |
5163 | rc = -ENODEV; | |
5164 | goto out; | |
5165 | } | |
5166 | } else | |
5167 | card->lan_online = 1; | |
5168 | ||
1da74b1c | 5169 | card->options.ipa4.supported_funcs = 0; |
4d7def2a | 5170 | card->options.ipa6.supported_funcs = 0; |
1da74b1c | 5171 | card->options.adp.supported_funcs = 0; |
b4d72c08 | 5172 | card->options.sbp.supported_funcs = 0; |
1da74b1c | 5173 | card->info.diagass_support = 0; |
1aec42bc TR |
5174 | rc = qeth_query_ipassists(card, QETH_PROT_IPV4); |
5175 | if (rc == -ENOMEM) | |
5176 | goto out; | |
ee75fb86 KM |
5177 | if (qeth_is_supported(card, IPA_IPV6)) { |
5178 | rc = qeth_query_ipassists(card, QETH_PROT_IPV6); | |
5179 | if (rc == -ENOMEM) | |
5180 | goto out; | |
5181 | } | |
1aec42bc TR |
5182 | if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) { |
5183 | rc = qeth_query_setadapterparms(card); | |
5184 | if (rc < 0) { | |
10340510 | 5185 | QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc); |
1aec42bc TR |
5186 | goto out; |
5187 | } | |
5188 | } | |
5189 | if (qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) { | |
5190 | rc = qeth_query_setdiagass(card); | |
5191 | if (rc < 0) { | |
10340510 | 5192 | QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc); |
1aec42bc TR |
5193 | goto out; |
5194 | } | |
5195 | } | |
4a71df50 FB |
5196 | return 0; |
5197 | out: | |
74eacdb9 FB |
5198 | dev_warn(&card->gdev->dev, "The qeth device driver failed to recover " |
5199 | "an error on the device\n"); | |
5200 | QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n", | |
5201 | dev_name(&card->gdev->dev), rc); | |
4a71df50 FB |
5202 | return rc; |
5203 | } | |
5204 | EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card); | |
5205 | ||
8d68af6a JW |
5206 | static void qeth_create_skb_frag(struct qdio_buffer_element *element, |
5207 | struct sk_buff *skb, int offset, int data_len) | |
4a71df50 FB |
5208 | { |
5209 | struct page *page = virt_to_page(element->addr); | |
b6f72f96 | 5210 | unsigned int next_frag; |
b3332930 | 5211 | |
8d68af6a JW |
5212 | /* first fill the linear space */ |
5213 | if (!skb->len) { | |
5214 | unsigned int linear = min(data_len, skb_tailroom(skb)); | |
0da9581d | 5215 | |
8d68af6a JW |
5216 | skb_put_data(skb, element->addr + offset, linear); |
5217 | data_len -= linear; | |
5218 | if (!data_len) | |
5219 | return; | |
5220 | offset += linear; | |
5221 | /* fall through to add page frag for remaining data */ | |
4a71df50 | 5222 | } |
0da9581d | 5223 | |
8d68af6a | 5224 | next_frag = skb_shinfo(skb)->nr_frags; |
b6f72f96 | 5225 | get_page(page); |
8d68af6a | 5226 | skb_add_rx_frag(skb, next_frag, page, offset, data_len, data_len); |
4a71df50 FB |
5227 | } |
5228 | ||
bca51650 TR |
5229 | static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale) |
5230 | { | |
5231 | return (sbale->eflags & SBAL_EFLAGS_LAST_ENTRY); | |
5232 | } | |
5233 | ||
4a71df50 | 5234 | struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card, |
b3332930 | 5235 | struct qeth_qdio_buffer *qethbuffer, |
4a71df50 FB |
5236 | struct qdio_buffer_element **__element, int *__offset, |
5237 | struct qeth_hdr **hdr) | |
5238 | { | |
5239 | struct qdio_buffer_element *element = *__element; | |
b3332930 | 5240 | struct qdio_buffer *buffer = qethbuffer->buffer; |
4a71df50 | 5241 | int offset = *__offset; |
8d68af6a | 5242 | struct sk_buff *skb; |
76b11f8e | 5243 | int skb_len = 0; |
4a71df50 FB |
5244 | void *data_ptr; |
5245 | int data_len; | |
5246 | int headroom = 0; | |
5247 | int use_rx_sg = 0; | |
4a71df50 | 5248 | |
4a71df50 | 5249 | /* qeth_hdr must not cross element boundaries */ |
864c17c3 | 5250 | while (element->length < offset + sizeof(struct qeth_hdr)) { |
4a71df50 FB |
5251 | if (qeth_is_last_sbale(element)) |
5252 | return NULL; | |
5253 | element++; | |
5254 | offset = 0; | |
4a71df50 FB |
5255 | } |
5256 | *hdr = element->addr + offset; | |
5257 | ||
5258 | offset += sizeof(struct qeth_hdr); | |
76b11f8e UB |
5259 | switch ((*hdr)->hdr.l2.id) { |
5260 | case QETH_HEADER_TYPE_LAYER2: | |
5261 | skb_len = (*hdr)->hdr.l2.pkt_length; | |
5262 | break; | |
5263 | case QETH_HEADER_TYPE_LAYER3: | |
4a71df50 | 5264 | skb_len = (*hdr)->hdr.l3.length; |
1abd2296 | 5265 | headroom = ETH_HLEN; |
76b11f8e UB |
5266 | break; |
5267 | case QETH_HEADER_TYPE_OSN: | |
5268 | skb_len = (*hdr)->hdr.osn.pdu_length; | |
5269 | headroom = sizeof(struct qeth_hdr); | |
5270 | break; | |
5271 | default: | |
5272 | break; | |
4a71df50 FB |
5273 | } |
5274 | ||
5275 | if (!skb_len) | |
5276 | return NULL; | |
5277 | ||
b3332930 FB |
5278 | if (((skb_len >= card->options.rx_sg_cb) && |
5279 | (!(card->info.type == QETH_CARD_TYPE_OSN)) && | |
5280 | (!atomic_read(&card->force_alloc_skb))) || | |
8d68af6a | 5281 | (card->options.cq == QETH_CQ_ENABLED)) |
4a71df50 | 5282 | use_rx_sg = 1; |
8d68af6a JW |
5283 | |
5284 | if (use_rx_sg && qethbuffer->rx_skb) { | |
5285 | /* QETH_CQ_ENABLED only: */ | |
5286 | skb = qethbuffer->rx_skb; | |
5287 | qethbuffer->rx_skb = NULL; | |
4a71df50 | 5288 | } else { |
8d68af6a JW |
5289 | unsigned int linear = (use_rx_sg) ? QETH_RX_PULL_LEN : skb_len; |
5290 | ||
37cf05d2 | 5291 | skb = napi_alloc_skb(&card->napi, linear + headroom); |
4a71df50 | 5292 | } |
8d68af6a JW |
5293 | if (!skb) |
5294 | goto no_mem; | |
5295 | if (headroom) | |
5296 | skb_reserve(skb, headroom); | |
4a71df50 FB |
5297 | |
5298 | data_ptr = element->addr + offset; | |
5299 | while (skb_len) { | |
5300 | data_len = min(skb_len, (int)(element->length - offset)); | |
5301 | if (data_len) { | |
8d68af6a JW |
5302 | if (use_rx_sg) |
5303 | qeth_create_skb_frag(element, skb, offset, | |
5304 | data_len); | |
5305 | else | |
59ae1d12 | 5306 | skb_put_data(skb, data_ptr, data_len); |
4a71df50 FB |
5307 | } |
5308 | skb_len -= data_len; | |
5309 | if (skb_len) { | |
5310 | if (qeth_is_last_sbale(element)) { | |
847a50fd | 5311 | QETH_CARD_TEXT(card, 4, "unexeob"); |
efd5d9a4 | 5312 | QETH_CARD_HEX(card, 2, buffer, sizeof(void *)); |
4a71df50 FB |
5313 | dev_kfree_skb_any(skb); |
5314 | card->stats.rx_errors++; | |
5315 | return NULL; | |
5316 | } | |
5317 | element++; | |
5318 | offset = 0; | |
5319 | data_ptr = element->addr; | |
5320 | } else { | |
5321 | offset += data_len; | |
5322 | } | |
5323 | } | |
5324 | *__element = element; | |
5325 | *__offset = offset; | |
5326 | if (use_rx_sg && card->options.performance_stats) { | |
5327 | card->perf_stats.sg_skbs_rx++; | |
5328 | card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags; | |
5329 | } | |
5330 | return skb; | |
5331 | no_mem: | |
5332 | if (net_ratelimit()) { | |
847a50fd | 5333 | QETH_CARD_TEXT(card, 2, "noskbmem"); |
4a71df50 FB |
5334 | } |
5335 | card->stats.rx_dropped++; | |
5336 | return NULL; | |
5337 | } | |
5338 | EXPORT_SYMBOL_GPL(qeth_core_get_next_skb); | |
5339 | ||
d73ef324 JW |
5340 | int qeth_poll(struct napi_struct *napi, int budget) |
5341 | { | |
5342 | struct qeth_card *card = container_of(napi, struct qeth_card, napi); | |
5343 | int work_done = 0; | |
5344 | struct qeth_qdio_buffer *buffer; | |
5345 | int done; | |
5346 | int new_budget = budget; | |
5347 | ||
5348 | if (card->options.performance_stats) { | |
5349 | card->perf_stats.inbound_cnt++; | |
5350 | card->perf_stats.inbound_start_time = qeth_get_micros(); | |
5351 | } | |
5352 | ||
5353 | while (1) { | |
5354 | if (!card->rx.b_count) { | |
5355 | card->rx.qdio_err = 0; | |
5356 | card->rx.b_count = qdio_get_next_buffers( | |
5357 | card->data.ccwdev, 0, &card->rx.b_index, | |
5358 | &card->rx.qdio_err); | |
5359 | if (card->rx.b_count <= 0) { | |
5360 | card->rx.b_count = 0; | |
5361 | break; | |
5362 | } | |
5363 | card->rx.b_element = | |
5364 | &card->qdio.in_q->bufs[card->rx.b_index] | |
5365 | .buffer->element[0]; | |
5366 | card->rx.e_offset = 0; | |
5367 | } | |
5368 | ||
5369 | while (card->rx.b_count) { | |
5370 | buffer = &card->qdio.in_q->bufs[card->rx.b_index]; | |
5371 | if (!(card->rx.qdio_err && | |
5372 | qeth_check_qdio_errors(card, buffer->buffer, | |
5373 | card->rx.qdio_err, "qinerr"))) | |
5374 | work_done += | |
5375 | card->discipline->process_rx_buffer( | |
5376 | card, new_budget, &done); | |
5377 | else | |
5378 | done = 1; | |
5379 | ||
5380 | if (done) { | |
5381 | if (card->options.performance_stats) | |
5382 | card->perf_stats.bufs_rec++; | |
5383 | qeth_put_buffer_pool_entry(card, | |
5384 | buffer->pool_entry); | |
5385 | qeth_queue_input_buffer(card, card->rx.b_index); | |
5386 | card->rx.b_count--; | |
5387 | if (card->rx.b_count) { | |
5388 | card->rx.b_index = | |
5389 | (card->rx.b_index + 1) % | |
5390 | QDIO_MAX_BUFFERS_PER_Q; | |
5391 | card->rx.b_element = | |
5392 | &card->qdio.in_q | |
5393 | ->bufs[card->rx.b_index] | |
5394 | .buffer->element[0]; | |
5395 | card->rx.e_offset = 0; | |
5396 | } | |
5397 | } | |
5398 | ||
5399 | if (work_done >= budget) | |
5400 | goto out; | |
5401 | else | |
5402 | new_budget = budget - work_done; | |
5403 | } | |
5404 | } | |
5405 | ||
978759e8 | 5406 | napi_complete_done(napi, work_done); |
d73ef324 JW |
5407 | if (qdio_start_irq(card->data.ccwdev, 0)) |
5408 | napi_schedule(&card->napi); | |
5409 | out: | |
5410 | if (card->options.performance_stats) | |
5411 | card->perf_stats.inbound_time += qeth_get_micros() - | |
5412 | card->perf_stats.inbound_start_time; | |
5413 | return work_done; | |
5414 | } | |
5415 | EXPORT_SYMBOL_GPL(qeth_poll); | |
5416 | ||
ad3cbf61 JW |
5417 | static int qeth_setassparms_inspect_rc(struct qeth_ipa_cmd *cmd) |
5418 | { | |
5419 | if (!cmd->hdr.return_code) | |
5420 | cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code; | |
5421 | return cmd->hdr.return_code; | |
5422 | } | |
5423 | ||
8f43fb00 TR |
5424 | int qeth_setassparms_cb(struct qeth_card *card, |
5425 | struct qeth_reply *reply, unsigned long data) | |
4d7def2a TR |
5426 | { |
5427 | struct qeth_ipa_cmd *cmd; | |
5428 | ||
5429 | QETH_CARD_TEXT(card, 4, "defadpcb"); | |
5430 | ||
5431 | cmd = (struct qeth_ipa_cmd *) data; | |
5432 | if (cmd->hdr.return_code == 0) { | |
5433 | cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code; | |
5434 | if (cmd->hdr.prot_version == QETH_PROT_IPV4) | |
5435 | card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled; | |
5436 | if (cmd->hdr.prot_version == QETH_PROT_IPV6) | |
5437 | card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled; | |
5438 | } | |
4d7def2a TR |
5439 | return 0; |
5440 | } | |
8f43fb00 | 5441 | EXPORT_SYMBOL_GPL(qeth_setassparms_cb); |
4d7def2a | 5442 | |
b475e316 TR |
5443 | struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *card, |
5444 | enum qeth_ipa_funcs ipa_func, | |
5445 | __u16 cmd_code, __u16 len, | |
5446 | enum qeth_prot_versions prot) | |
4d7def2a TR |
5447 | { |
5448 | struct qeth_cmd_buffer *iob; | |
5449 | struct qeth_ipa_cmd *cmd; | |
5450 | ||
5451 | QETH_CARD_TEXT(card, 4, "getasscm"); | |
5452 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot); | |
5453 | ||
5454 | if (iob) { | |
ff5caa7a | 5455 | cmd = __ipa_cmd(iob); |
4d7def2a TR |
5456 | cmd->data.setassparms.hdr.assist_no = ipa_func; |
5457 | cmd->data.setassparms.hdr.length = 8 + len; | |
5458 | cmd->data.setassparms.hdr.command_code = cmd_code; | |
5459 | cmd->data.setassparms.hdr.return_code = 0; | |
5460 | cmd->data.setassparms.hdr.seq_no = 0; | |
5461 | } | |
5462 | ||
5463 | return iob; | |
5464 | } | |
b475e316 | 5465 | EXPORT_SYMBOL_GPL(qeth_get_setassparms_cmd); |
4d7def2a TR |
5466 | |
5467 | int qeth_send_setassparms(struct qeth_card *card, | |
5468 | struct qeth_cmd_buffer *iob, __u16 len, long data, | |
5469 | int (*reply_cb)(struct qeth_card *, | |
5470 | struct qeth_reply *, unsigned long), | |
5471 | void *reply_param) | |
5472 | { | |
5473 | int rc; | |
5474 | struct qeth_ipa_cmd *cmd; | |
5475 | ||
5476 | QETH_CARD_TEXT(card, 4, "sendassp"); | |
5477 | ||
ff5caa7a | 5478 | cmd = __ipa_cmd(iob); |
4d7def2a TR |
5479 | if (len <= sizeof(__u32)) |
5480 | cmd->data.setassparms.data.flags_32bit = (__u32) data; | |
5481 | else /* (len > sizeof(__u32)) */ | |
5482 | memcpy(&cmd->data.setassparms.data, (void *) data, len); | |
5483 | ||
5484 | rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param); | |
5485 | return rc; | |
5486 | } | |
5487 | EXPORT_SYMBOL_GPL(qeth_send_setassparms); | |
5488 | ||
a8155b00 KM |
5489 | int qeth_send_simple_setassparms_prot(struct qeth_card *card, |
5490 | enum qeth_ipa_funcs ipa_func, | |
5491 | u16 cmd_code, long data, | |
5492 | enum qeth_prot_versions prot) | |
4d7def2a TR |
5493 | { |
5494 | int rc; | |
5495 | int length = 0; | |
5496 | struct qeth_cmd_buffer *iob; | |
5497 | ||
a8155b00 | 5498 | QETH_CARD_TEXT_(card, 4, "simassp%i", prot); |
4d7def2a TR |
5499 | if (data) |
5500 | length = sizeof(__u32); | |
a8155b00 | 5501 | iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code, length, prot); |
4d7def2a TR |
5502 | if (!iob) |
5503 | return -ENOMEM; | |
5504 | rc = qeth_send_setassparms(card, iob, length, data, | |
5505 | qeth_setassparms_cb, NULL); | |
5506 | return rc; | |
5507 | } | |
a8155b00 | 5508 | EXPORT_SYMBOL_GPL(qeth_send_simple_setassparms_prot); |
4d7def2a | 5509 | |
4a71df50 FB |
5510 | static void qeth_unregister_dbf_views(void) |
5511 | { | |
d11ba0c4 PT |
5512 | int x; |
5513 | for (x = 0; x < QETH_DBF_INFOS; x++) { | |
5514 | debug_unregister(qeth_dbf[x].id); | |
5515 | qeth_dbf[x].id = NULL; | |
5516 | } | |
4a71df50 FB |
5517 | } |
5518 | ||
8e96c51c | 5519 | void qeth_dbf_longtext(debug_info_t *id, int level, char *fmt, ...) |
cd023216 PT |
5520 | { |
5521 | char dbf_txt_buf[32]; | |
345aa66e | 5522 | va_list args; |
cd023216 | 5523 | |
8e6a8285 | 5524 | if (!debug_level_enabled(id, level)) |
cd023216 | 5525 | return; |
345aa66e PT |
5526 | va_start(args, fmt); |
5527 | vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args); | |
5528 | va_end(args); | |
8e96c51c | 5529 | debug_text_event(id, level, dbf_txt_buf); |
cd023216 PT |
5530 | } |
5531 | EXPORT_SYMBOL_GPL(qeth_dbf_longtext); | |
5532 | ||
4a71df50 FB |
5533 | static int qeth_register_dbf_views(void) |
5534 | { | |
d11ba0c4 PT |
5535 | int ret; |
5536 | int x; | |
5537 | ||
5538 | for (x = 0; x < QETH_DBF_INFOS; x++) { | |
5539 | /* register the areas */ | |
5540 | qeth_dbf[x].id = debug_register(qeth_dbf[x].name, | |
5541 | qeth_dbf[x].pages, | |
5542 | qeth_dbf[x].areas, | |
5543 | qeth_dbf[x].len); | |
5544 | if (qeth_dbf[x].id == NULL) { | |
5545 | qeth_unregister_dbf_views(); | |
5546 | return -ENOMEM; | |
5547 | } | |
4a71df50 | 5548 | |
d11ba0c4 PT |
5549 | /* register a view */ |
5550 | ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view); | |
5551 | if (ret) { | |
5552 | qeth_unregister_dbf_views(); | |
5553 | return ret; | |
5554 | } | |
4a71df50 | 5555 | |
d11ba0c4 PT |
5556 | /* set a passing level */ |
5557 | debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level); | |
5558 | } | |
4a71df50 FB |
5559 | |
5560 | return 0; | |
5561 | } | |
5562 | ||
5563 | int qeth_core_load_discipline(struct qeth_card *card, | |
5564 | enum qeth_discipline_id discipline) | |
5565 | { | |
5566 | int rc = 0; | |
c70eb09d | 5567 | |
2022e00c | 5568 | mutex_lock(&qeth_mod_mutex); |
4a71df50 FB |
5569 | switch (discipline) { |
5570 | case QETH_DISCIPLINE_LAYER3: | |
c041f2d4 SO |
5571 | card->discipline = try_then_request_module( |
5572 | symbol_get(qeth_l3_discipline), "qeth_l3"); | |
4a71df50 FB |
5573 | break; |
5574 | case QETH_DISCIPLINE_LAYER2: | |
c041f2d4 SO |
5575 | card->discipline = try_then_request_module( |
5576 | symbol_get(qeth_l2_discipline), "qeth_l2"); | |
4a71df50 | 5577 | break; |
c70eb09d JW |
5578 | default: |
5579 | break; | |
4a71df50 | 5580 | } |
c70eb09d | 5581 | |
c041f2d4 | 5582 | if (!card->discipline) { |
74eacdb9 FB |
5583 | dev_err(&card->gdev->dev, "There is no kernel module to " |
5584 | "support discipline %d\n", discipline); | |
4a71df50 FB |
5585 | rc = -EINVAL; |
5586 | } | |
2022e00c | 5587 | mutex_unlock(&qeth_mod_mutex); |
4a71df50 FB |
5588 | return rc; |
5589 | } | |
5590 | ||
5591 | void qeth_core_free_discipline(struct qeth_card *card) | |
5592 | { | |
5593 | if (card->options.layer2) | |
c041f2d4 | 5594 | symbol_put(qeth_l2_discipline); |
4a71df50 | 5595 | else |
c041f2d4 SO |
5596 | symbol_put(qeth_l3_discipline); |
5597 | card->discipline = NULL; | |
4a71df50 FB |
5598 | } |
5599 | ||
2d2ebb3e | 5600 | const struct device_type qeth_generic_devtype = { |
b7169c51 SO |
5601 | .name = "qeth_generic", |
5602 | .groups = qeth_generic_attr_groups, | |
5603 | }; | |
2d2ebb3e JW |
5604 | EXPORT_SYMBOL_GPL(qeth_generic_devtype); |
5605 | ||
b7169c51 SO |
5606 | static const struct device_type qeth_osn_devtype = { |
5607 | .name = "qeth_osn", | |
5608 | .groups = qeth_osn_attr_groups, | |
5609 | }; | |
5610 | ||
819dc537 SR |
5611 | #define DBF_NAME_LEN 20 |
5612 | ||
5613 | struct qeth_dbf_entry { | |
5614 | char dbf_name[DBF_NAME_LEN]; | |
5615 | debug_info_t *dbf_info; | |
5616 | struct list_head dbf_list; | |
5617 | }; | |
5618 | ||
5619 | static LIST_HEAD(qeth_dbf_list); | |
5620 | static DEFINE_MUTEX(qeth_dbf_list_mutex); | |
5621 | ||
5622 | static debug_info_t *qeth_get_dbf_entry(char *name) | |
5623 | { | |
5624 | struct qeth_dbf_entry *entry; | |
5625 | debug_info_t *rc = NULL; | |
5626 | ||
5627 | mutex_lock(&qeth_dbf_list_mutex); | |
5628 | list_for_each_entry(entry, &qeth_dbf_list, dbf_list) { | |
5629 | if (strcmp(entry->dbf_name, name) == 0) { | |
5630 | rc = entry->dbf_info; | |
5631 | break; | |
5632 | } | |
5633 | } | |
5634 | mutex_unlock(&qeth_dbf_list_mutex); | |
5635 | return rc; | |
5636 | } | |
5637 | ||
5638 | static int qeth_add_dbf_entry(struct qeth_card *card, char *name) | |
5639 | { | |
5640 | struct qeth_dbf_entry *new_entry; | |
5641 | ||
5642 | card->debug = debug_register(name, 2, 1, 8); | |
5643 | if (!card->debug) { | |
5644 | QETH_DBF_TEXT_(SETUP, 2, "%s", "qcdbf"); | |
5645 | goto err; | |
5646 | } | |
5647 | if (debug_register_view(card->debug, &debug_hex_ascii_view)) | |
5648 | goto err_dbg; | |
5649 | new_entry = kzalloc(sizeof(struct qeth_dbf_entry), GFP_KERNEL); | |
5650 | if (!new_entry) | |
5651 | goto err_dbg; | |
5652 | strncpy(new_entry->dbf_name, name, DBF_NAME_LEN); | |
5653 | new_entry->dbf_info = card->debug; | |
5654 | mutex_lock(&qeth_dbf_list_mutex); | |
5655 | list_add(&new_entry->dbf_list, &qeth_dbf_list); | |
5656 | mutex_unlock(&qeth_dbf_list_mutex); | |
5657 | ||
5658 | return 0; | |
5659 | ||
5660 | err_dbg: | |
5661 | debug_unregister(card->debug); | |
5662 | err: | |
5663 | return -ENOMEM; | |
5664 | } | |
5665 | ||
5666 | static void qeth_clear_dbf_list(void) | |
5667 | { | |
5668 | struct qeth_dbf_entry *entry, *tmp; | |
5669 | ||
5670 | mutex_lock(&qeth_dbf_list_mutex); | |
5671 | list_for_each_entry_safe(entry, tmp, &qeth_dbf_list, dbf_list) { | |
5672 | list_del(&entry->dbf_list); | |
5673 | debug_unregister(entry->dbf_info); | |
5674 | kfree(entry); | |
5675 | } | |
5676 | mutex_unlock(&qeth_dbf_list_mutex); | |
5677 | } | |
5678 | ||
d3d1b205 JW |
5679 | static struct net_device *qeth_alloc_netdev(struct qeth_card *card) |
5680 | { | |
5681 | struct net_device *dev; | |
5682 | ||
5683 | switch (card->info.type) { | |
5684 | case QETH_CARD_TYPE_IQD: | |
5685 | dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN, ether_setup); | |
5686 | break; | |
5687 | case QETH_CARD_TYPE_OSN: | |
5688 | dev = alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN, ether_setup); | |
5689 | break; | |
5690 | default: | |
5691 | dev = alloc_etherdev(0); | |
5692 | } | |
5693 | ||
5694 | if (!dev) | |
5695 | return NULL; | |
5696 | ||
5697 | dev->ml_priv = card; | |
5698 | dev->watchdog_timeo = QETH_TX_TIMEOUT; | |
72f219da | 5699 | dev->min_mtu = IS_OSN(card) ? 64 : 576; |
8ce7a9e0 JW |
5700 | /* initialized when device first goes online: */ |
5701 | dev->max_mtu = 0; | |
5702 | dev->mtu = 0; | |
d3d1b205 JW |
5703 | SET_NETDEV_DEV(dev, &card->gdev->dev); |
5704 | netif_carrier_off(dev); | |
5f89eca5 JW |
5705 | |
5706 | if (!IS_OSN(card)) { | |
5707 | dev->priv_flags &= ~IFF_TX_SKB_SHARING; | |
5708 | dev->hw_features |= NETIF_F_SG; | |
5709 | dev->vlan_features |= NETIF_F_SG; | |
04db741d JW |
5710 | if (IS_IQD(card)) |
5711 | dev->features |= NETIF_F_SG; | |
5f89eca5 JW |
5712 | } |
5713 | ||
d3d1b205 JW |
5714 | return dev; |
5715 | } | |
5716 | ||
5717 | struct net_device *qeth_clone_netdev(struct net_device *orig) | |
5718 | { | |
5719 | struct net_device *clone = qeth_alloc_netdev(orig->ml_priv); | |
5720 | ||
5721 | if (!clone) | |
5722 | return NULL; | |
5723 | ||
5724 | clone->dev_port = orig->dev_port; | |
5725 | return clone; | |
5726 | } | |
5727 | ||
4a71df50 FB |
5728 | static int qeth_core_probe_device(struct ccwgroup_device *gdev) |
5729 | { | |
5730 | struct qeth_card *card; | |
5731 | struct device *dev; | |
5732 | int rc; | |
c70eb09d | 5733 | enum qeth_discipline_id enforced_disc; |
4a71df50 | 5734 | unsigned long flags; |
819dc537 | 5735 | char dbf_name[DBF_NAME_LEN]; |
4a71df50 | 5736 | |
d11ba0c4 | 5737 | QETH_DBF_TEXT(SETUP, 2, "probedev"); |
4a71df50 FB |
5738 | |
5739 | dev = &gdev->dev; | |
5740 | if (!get_device(dev)) | |
5741 | return -ENODEV; | |
5742 | ||
2a0217d5 | 5743 | QETH_DBF_TEXT_(SETUP, 2, "%s", dev_name(&gdev->dev)); |
4a71df50 FB |
5744 | |
5745 | card = qeth_alloc_card(); | |
5746 | if (!card) { | |
d11ba0c4 | 5747 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM); |
4a71df50 FB |
5748 | rc = -ENOMEM; |
5749 | goto err_dev; | |
5750 | } | |
af039068 CO |
5751 | |
5752 | snprintf(dbf_name, sizeof(dbf_name), "qeth_card_%s", | |
5753 | dev_name(&gdev->dev)); | |
819dc537 | 5754 | card->debug = qeth_get_dbf_entry(dbf_name); |
af039068 | 5755 | if (!card->debug) { |
819dc537 SR |
5756 | rc = qeth_add_dbf_entry(card, dbf_name); |
5757 | if (rc) | |
5758 | goto err_card; | |
af039068 | 5759 | } |
af039068 | 5760 | |
4a71df50 FB |
5761 | card->read.ccwdev = gdev->cdev[0]; |
5762 | card->write.ccwdev = gdev->cdev[1]; | |
5763 | card->data.ccwdev = gdev->cdev[2]; | |
5764 | dev_set_drvdata(&gdev->dev, card); | |
5765 | card->gdev = gdev; | |
5766 | gdev->cdev[0]->handler = qeth_irq; | |
5767 | gdev->cdev[1]->handler = qeth_irq; | |
5768 | gdev->cdev[2]->handler = qeth_irq; | |
5769 | ||
95f4d8b7 JW |
5770 | qeth_setup_card(card); |
5771 | qeth_update_from_chp_desc(card); | |
4a71df50 | 5772 | |
d3d1b205 | 5773 | card->dev = qeth_alloc_netdev(card); |
778b1ac7 JW |
5774 | if (!card->dev) { |
5775 | rc = -ENOMEM; | |
d3d1b205 | 5776 | goto err_card; |
778b1ac7 | 5777 | } |
d3d1b205 | 5778 | |
c70eb09d JW |
5779 | qeth_determine_capabilities(card); |
5780 | enforced_disc = qeth_enforce_discipline(card); | |
5781 | switch (enforced_disc) { | |
5782 | case QETH_DISCIPLINE_UNDETERMINED: | |
5783 | gdev->dev.type = &qeth_generic_devtype; | |
5784 | break; | |
5785 | default: | |
5786 | card->info.layer_enforced = true; | |
5787 | rc = qeth_core_load_discipline(card, enforced_disc); | |
5113fec0 | 5788 | if (rc) |
d3d1b205 | 5789 | goto err_load; |
2d2ebb3e JW |
5790 | |
5791 | gdev->dev.type = (card->info.type != QETH_CARD_TYPE_OSN) | |
5792 | ? card->discipline->devtype | |
5793 | : &qeth_osn_devtype; | |
c041f2d4 | 5794 | rc = card->discipline->setup(card->gdev); |
4a71df50 | 5795 | if (rc) |
5113fec0 | 5796 | goto err_disc; |
2d2ebb3e | 5797 | break; |
4a71df50 FB |
5798 | } |
5799 | ||
5800 | write_lock_irqsave(&qeth_core_card_list.rwlock, flags); | |
5801 | list_add_tail(&card->list, &qeth_core_card_list.list); | |
5802 | write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); | |
5803 | return 0; | |
5804 | ||
5113fec0 UB |
5805 | err_disc: |
5806 | qeth_core_free_discipline(card); | |
d3d1b205 JW |
5807 | err_load: |
5808 | free_netdev(card->dev); | |
4a71df50 FB |
5809 | err_card: |
5810 | qeth_core_free_card(card); | |
5811 | err_dev: | |
5812 | put_device(dev); | |
5813 | return rc; | |
5814 | } | |
5815 | ||
5816 | static void qeth_core_remove_device(struct ccwgroup_device *gdev) | |
5817 | { | |
5818 | unsigned long flags; | |
5819 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
5820 | ||
28a7e4c9 | 5821 | QETH_DBF_TEXT(SETUP, 2, "removedv"); |
4a71df50 | 5822 | |
c041f2d4 SO |
5823 | if (card->discipline) { |
5824 | card->discipline->remove(gdev); | |
9dc48ccc UB |
5825 | qeth_core_free_discipline(card); |
5826 | } | |
5827 | ||
4a71df50 FB |
5828 | write_lock_irqsave(&qeth_core_card_list.rwlock, flags); |
5829 | list_del(&card->list); | |
5830 | write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); | |
d3d1b205 | 5831 | free_netdev(card->dev); |
4a71df50 FB |
5832 | qeth_core_free_card(card); |
5833 | dev_set_drvdata(&gdev->dev, NULL); | |
5834 | put_device(&gdev->dev); | |
4a71df50 FB |
5835 | } |
5836 | ||
5837 | static int qeth_core_set_online(struct ccwgroup_device *gdev) | |
5838 | { | |
5839 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
5840 | int rc = 0; | |
c70eb09d | 5841 | enum qeth_discipline_id def_discipline; |
4a71df50 | 5842 | |
c041f2d4 | 5843 | if (!card->discipline) { |
4a71df50 FB |
5844 | if (card->info.type == QETH_CARD_TYPE_IQD) |
5845 | def_discipline = QETH_DISCIPLINE_LAYER3; | |
5846 | else | |
5847 | def_discipline = QETH_DISCIPLINE_LAYER2; | |
5848 | rc = qeth_core_load_discipline(card, def_discipline); | |
5849 | if (rc) | |
5850 | goto err; | |
c041f2d4 | 5851 | rc = card->discipline->setup(card->gdev); |
9111e788 UB |
5852 | if (rc) { |
5853 | qeth_core_free_discipline(card); | |
4a71df50 | 5854 | goto err; |
9111e788 | 5855 | } |
4a71df50 | 5856 | } |
c041f2d4 | 5857 | rc = card->discipline->set_online(gdev); |
4a71df50 FB |
5858 | err: |
5859 | return rc; | |
5860 | } | |
5861 | ||
5862 | static int qeth_core_set_offline(struct ccwgroup_device *gdev) | |
5863 | { | |
5864 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
c041f2d4 | 5865 | return card->discipline->set_offline(gdev); |
4a71df50 FB |
5866 | } |
5867 | ||
5868 | static void qeth_core_shutdown(struct ccwgroup_device *gdev) | |
5869 | { | |
5870 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
96d1bb53 JW |
5871 | qeth_set_allowed_threads(card, 0, 1); |
5872 | if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap) | |
5873 | qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); | |
5874 | qeth_qdio_clear_card(card, 0); | |
5875 | qeth_clear_qdio_buffers(card); | |
5876 | qdio_free(CARD_DDEV(card)); | |
4a71df50 FB |
5877 | } |
5878 | ||
bbcfcdc8 FB |
5879 | static int qeth_core_freeze(struct ccwgroup_device *gdev) |
5880 | { | |
5881 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
c041f2d4 SO |
5882 | if (card->discipline && card->discipline->freeze) |
5883 | return card->discipline->freeze(gdev); | |
bbcfcdc8 FB |
5884 | return 0; |
5885 | } | |
5886 | ||
5887 | static int qeth_core_thaw(struct ccwgroup_device *gdev) | |
5888 | { | |
5889 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
c041f2d4 SO |
5890 | if (card->discipline && card->discipline->thaw) |
5891 | return card->discipline->thaw(gdev); | |
bbcfcdc8 FB |
5892 | return 0; |
5893 | } | |
5894 | ||
5895 | static int qeth_core_restore(struct ccwgroup_device *gdev) | |
5896 | { | |
5897 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
c041f2d4 SO |
5898 | if (card->discipline && card->discipline->restore) |
5899 | return card->discipline->restore(gdev); | |
bbcfcdc8 FB |
5900 | return 0; |
5901 | } | |
5902 | ||
36369569 GKH |
5903 | static ssize_t group_store(struct device_driver *ddrv, const char *buf, |
5904 | size_t count) | |
4a71df50 FB |
5905 | { |
5906 | int err; | |
4a71df50 | 5907 | |
6d8769ab JW |
5908 | err = ccwgroup_create_dev(qeth_core_root_dev, to_ccwgroupdrv(ddrv), 3, |
5909 | buf); | |
b7169c51 SO |
5910 | |
5911 | return err ? err : count; | |
5912 | } | |
36369569 | 5913 | static DRIVER_ATTR_WO(group); |
4a71df50 | 5914 | |
f47e2256 SO |
5915 | static struct attribute *qeth_drv_attrs[] = { |
5916 | &driver_attr_group.attr, | |
5917 | NULL, | |
5918 | }; | |
5919 | static struct attribute_group qeth_drv_attr_group = { | |
5920 | .attrs = qeth_drv_attrs, | |
5921 | }; | |
5922 | static const struct attribute_group *qeth_drv_attr_groups[] = { | |
5923 | &qeth_drv_attr_group, | |
5924 | NULL, | |
5925 | }; | |
5926 | ||
6d8769ab JW |
5927 | static struct ccwgroup_driver qeth_core_ccwgroup_driver = { |
5928 | .driver = { | |
5929 | .groups = qeth_drv_attr_groups, | |
5930 | .owner = THIS_MODULE, | |
5931 | .name = "qeth", | |
5932 | }, | |
5933 | .ccw_driver = &qeth_ccw_driver, | |
5934 | .setup = qeth_core_probe_device, | |
5935 | .remove = qeth_core_remove_device, | |
5936 | .set_online = qeth_core_set_online, | |
5937 | .set_offline = qeth_core_set_offline, | |
5938 | .shutdown = qeth_core_shutdown, | |
5939 | .prepare = NULL, | |
5940 | .complete = NULL, | |
5941 | .freeze = qeth_core_freeze, | |
5942 | .thaw = qeth_core_thaw, | |
5943 | .restore = qeth_core_restore, | |
5944 | }; | |
5945 | ||
942d6984 JW |
5946 | int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
5947 | { | |
5948 | struct qeth_card *card = dev->ml_priv; | |
5949 | struct mii_ioctl_data *mii_data; | |
5950 | int rc = 0; | |
5951 | ||
5952 | if (!card) | |
5953 | return -ENODEV; | |
5954 | ||
5955 | if (!qeth_card_hw_is_reachable(card)) | |
5956 | return -ENODEV; | |
5957 | ||
5958 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
5959 | return -EPERM; | |
5960 | ||
5961 | switch (cmd) { | |
5962 | case SIOC_QETH_ADP_SET_SNMP_CONTROL: | |
5963 | rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data); | |
5964 | break; | |
5965 | case SIOC_QETH_GET_CARD_TYPE: | |
5966 | if ((card->info.type == QETH_CARD_TYPE_OSD || | |
5967 | card->info.type == QETH_CARD_TYPE_OSM || | |
5968 | card->info.type == QETH_CARD_TYPE_OSX) && | |
5969 | !card->info.guestlan) | |
5970 | return 1; | |
5971 | else | |
5972 | return 0; | |
5973 | case SIOCGMIIPHY: | |
5974 | mii_data = if_mii(rq); | |
5975 | mii_data->phy_id = 0; | |
5976 | break; | |
5977 | case SIOCGMIIREG: | |
5978 | mii_data = if_mii(rq); | |
5979 | if (mii_data->phy_id != 0) | |
5980 | rc = -EINVAL; | |
5981 | else | |
5982 | mii_data->val_out = qeth_mdio_read(dev, | |
5983 | mii_data->phy_id, mii_data->reg_num); | |
5984 | break; | |
5985 | case SIOC_QETH_QUERY_OAT: | |
5986 | rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data); | |
5987 | break; | |
5988 | default: | |
5989 | if (card->discipline->do_ioctl) | |
5990 | rc = card->discipline->do_ioctl(dev, rq, cmd); | |
5991 | else | |
5992 | rc = -EOPNOTSUPP; | |
5993 | } | |
5994 | if (rc) | |
5995 | QETH_CARD_TEXT_(card, 2, "ioce%x", rc); | |
5996 | return rc; | |
5997 | } | |
5998 | EXPORT_SYMBOL_GPL(qeth_do_ioctl); | |
5999 | ||
4a71df50 FB |
6000 | static struct { |
6001 | const char str[ETH_GSTRING_LEN]; | |
6002 | } qeth_ethtool_stats_keys[] = { | |
6003 | /* 0 */{"rx skbs"}, | |
6004 | {"rx buffers"}, | |
6005 | {"tx skbs"}, | |
6006 | {"tx buffers"}, | |
6007 | {"tx skbs no packing"}, | |
6008 | {"tx buffers no packing"}, | |
6009 | {"tx skbs packing"}, | |
6010 | {"tx buffers packing"}, | |
6011 | {"tx sg skbs"}, | |
d2a274b2 | 6012 | {"tx buffer elements"}, |
4a71df50 FB |
6013 | /* 10 */{"rx sg skbs"}, |
6014 | {"rx sg frags"}, | |
6015 | {"rx sg page allocs"}, | |
6016 | {"tx large kbytes"}, | |
6017 | {"tx large count"}, | |
6018 | {"tx pk state ch n->p"}, | |
6019 | {"tx pk state ch p->n"}, | |
6020 | {"tx pk watermark low"}, | |
6021 | {"tx pk watermark high"}, | |
6022 | {"queue 0 buffer usage"}, | |
6023 | /* 20 */{"queue 1 buffer usage"}, | |
6024 | {"queue 2 buffer usage"}, | |
6025 | {"queue 3 buffer usage"}, | |
a1c3ed4c FB |
6026 | {"rx poll time"}, |
6027 | {"rx poll count"}, | |
4a71df50 FB |
6028 | {"rx do_QDIO time"}, |
6029 | {"rx do_QDIO count"}, | |
6030 | {"tx handler time"}, | |
6031 | {"tx handler count"}, | |
6032 | {"tx time"}, | |
6033 | /* 30 */{"tx count"}, | |
6034 | {"tx do_QDIO time"}, | |
6035 | {"tx do_QDIO count"}, | |
f61a0d05 | 6036 | {"tx csum"}, |
c3b4a740 | 6037 | {"tx lin"}, |
6059c905 | 6038 | {"tx linfail"}, |
0da9581d | 6039 | {"cq handler count"}, |
3aade31b KM |
6040 | {"cq handler time"}, |
6041 | {"rx csum"} | |
4a71df50 FB |
6042 | }; |
6043 | ||
df8b4ec8 | 6044 | int qeth_core_get_sset_count(struct net_device *dev, int stringset) |
4a71df50 | 6045 | { |
df8b4ec8 BH |
6046 | switch (stringset) { |
6047 | case ETH_SS_STATS: | |
6048 | return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN); | |
6049 | default: | |
6050 | return -EINVAL; | |
6051 | } | |
4a71df50 | 6052 | } |
df8b4ec8 | 6053 | EXPORT_SYMBOL_GPL(qeth_core_get_sset_count); |
4a71df50 FB |
6054 | |
6055 | void qeth_core_get_ethtool_stats(struct net_device *dev, | |
6056 | struct ethtool_stats *stats, u64 *data) | |
6057 | { | |
509e2562 | 6058 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
6059 | data[0] = card->stats.rx_packets - |
6060 | card->perf_stats.initial_rx_packets; | |
6061 | data[1] = card->perf_stats.bufs_rec; | |
6062 | data[2] = card->stats.tx_packets - | |
6063 | card->perf_stats.initial_tx_packets; | |
6064 | data[3] = card->perf_stats.bufs_sent; | |
6065 | data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets | |
6066 | - card->perf_stats.skbs_sent_pack; | |
6067 | data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack; | |
6068 | data[6] = card->perf_stats.skbs_sent_pack; | |
6069 | data[7] = card->perf_stats.bufs_sent_pack; | |
6070 | data[8] = card->perf_stats.sg_skbs_sent; | |
d2a274b2 | 6071 | data[9] = card->perf_stats.buf_elements_sent; |
4a71df50 FB |
6072 | data[10] = card->perf_stats.sg_skbs_rx; |
6073 | data[11] = card->perf_stats.sg_frags_rx; | |
6074 | data[12] = card->perf_stats.sg_alloc_page_rx; | |
6075 | data[13] = (card->perf_stats.large_send_bytes >> 10); | |
6076 | data[14] = card->perf_stats.large_send_cnt; | |
6077 | data[15] = card->perf_stats.sc_dp_p; | |
6078 | data[16] = card->perf_stats.sc_p_dp; | |
6079 | data[17] = QETH_LOW_WATERMARK_PACK; | |
6080 | data[18] = QETH_HIGH_WATERMARK_PACK; | |
6081 | data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers); | |
6082 | data[20] = (card->qdio.no_out_queues > 1) ? | |
6083 | atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0; | |
6084 | data[21] = (card->qdio.no_out_queues > 2) ? | |
6085 | atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0; | |
6086 | data[22] = (card->qdio.no_out_queues > 3) ? | |
6087 | atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0; | |
6088 | data[23] = card->perf_stats.inbound_time; | |
6089 | data[24] = card->perf_stats.inbound_cnt; | |
6090 | data[25] = card->perf_stats.inbound_do_qdio_time; | |
6091 | data[26] = card->perf_stats.inbound_do_qdio_cnt; | |
6092 | data[27] = card->perf_stats.outbound_handler_time; | |
6093 | data[28] = card->perf_stats.outbound_handler_cnt; | |
6094 | data[29] = card->perf_stats.outbound_time; | |
6095 | data[30] = card->perf_stats.outbound_cnt; | |
6096 | data[31] = card->perf_stats.outbound_do_qdio_time; | |
6097 | data[32] = card->perf_stats.outbound_do_qdio_cnt; | |
f61a0d05 | 6098 | data[33] = card->perf_stats.tx_csum; |
c3b4a740 | 6099 | data[34] = card->perf_stats.tx_lin; |
6059c905 EC |
6100 | data[35] = card->perf_stats.tx_linfail; |
6101 | data[36] = card->perf_stats.cq_cnt; | |
6102 | data[37] = card->perf_stats.cq_time; | |
3aade31b | 6103 | data[38] = card->perf_stats.rx_csum; |
4a71df50 FB |
6104 | } |
6105 | EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats); | |
6106 | ||
6107 | void qeth_core_get_strings(struct net_device *dev, u32 stringset, u8 *data) | |
6108 | { | |
6109 | switch (stringset) { | |
6110 | case ETH_SS_STATS: | |
6111 | memcpy(data, &qeth_ethtool_stats_keys, | |
6112 | sizeof(qeth_ethtool_stats_keys)); | |
6113 | break; | |
6114 | default: | |
6115 | WARN_ON(1); | |
6116 | break; | |
6117 | } | |
6118 | } | |
6119 | EXPORT_SYMBOL_GPL(qeth_core_get_strings); | |
6120 | ||
6121 | void qeth_core_get_drvinfo(struct net_device *dev, | |
6122 | struct ethtool_drvinfo *info) | |
6123 | { | |
509e2562 | 6124 | struct qeth_card *card = dev->ml_priv; |
7826d43f JP |
6125 | |
6126 | strlcpy(info->driver, card->options.layer2 ? "qeth_l2" : "qeth_l3", | |
6127 | sizeof(info->driver)); | |
6128 | strlcpy(info->version, "1.0", sizeof(info->version)); | |
6129 | strlcpy(info->fw_version, card->info.mcl_level, | |
6130 | sizeof(info->fw_version)); | |
6131 | snprintf(info->bus_info, sizeof(info->bus_info), "%s/%s/%s", | |
6132 | CARD_RDEV_ID(card), CARD_WDEV_ID(card), CARD_DDEV_ID(card)); | |
4a71df50 FB |
6133 | } |
6134 | EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo); | |
6135 | ||
774afb8e JW |
6136 | /* Helper function to fill 'advertising' and 'supported' which are the same. */ |
6137 | /* Autoneg and full-duplex are supported and advertised unconditionally. */ | |
6138 | /* Always advertise and support all speeds up to specified, and only one */ | |
02d5cb5b | 6139 | /* specified port type. */ |
993e19c0 | 6140 | static void qeth_set_cmd_adv_sup(struct ethtool_link_ksettings *cmd, |
02d5cb5b EC |
6141 | int maxspeed, int porttype) |
6142 | { | |
41fc3b65 JW |
6143 | ethtool_link_ksettings_zero_link_mode(cmd, supported); |
6144 | ethtool_link_ksettings_zero_link_mode(cmd, advertising); | |
6145 | ethtool_link_ksettings_zero_link_mode(cmd, lp_advertising); | |
774afb8e | 6146 | |
41fc3b65 JW |
6147 | ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); |
6148 | ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg); | |
02d5cb5b EC |
6149 | |
6150 | switch (porttype) { | |
6151 | case PORT_TP: | |
41fc3b65 JW |
6152 | ethtool_link_ksettings_add_link_mode(cmd, supported, TP); |
6153 | ethtool_link_ksettings_add_link_mode(cmd, advertising, TP); | |
02d5cb5b EC |
6154 | break; |
6155 | case PORT_FIBRE: | |
41fc3b65 JW |
6156 | ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE); |
6157 | ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE); | |
02d5cb5b EC |
6158 | break; |
6159 | default: | |
41fc3b65 JW |
6160 | ethtool_link_ksettings_add_link_mode(cmd, supported, TP); |
6161 | ethtool_link_ksettings_add_link_mode(cmd, advertising, TP); | |
02d5cb5b EC |
6162 | WARN_ON_ONCE(1); |
6163 | } | |
6164 | ||
774afb8e | 6165 | /* fallthrough from high to low, to select all legal speeds: */ |
02d5cb5b EC |
6166 | switch (maxspeed) { |
6167 | case SPEED_10000: | |
41fc3b65 JW |
6168 | ethtool_link_ksettings_add_link_mode(cmd, supported, |
6169 | 10000baseT_Full); | |
6170 | ethtool_link_ksettings_add_link_mode(cmd, advertising, | |
6171 | 10000baseT_Full); | |
02d5cb5b | 6172 | case SPEED_1000: |
41fc3b65 JW |
6173 | ethtool_link_ksettings_add_link_mode(cmd, supported, |
6174 | 1000baseT_Full); | |
6175 | ethtool_link_ksettings_add_link_mode(cmd, advertising, | |
6176 | 1000baseT_Full); | |
6177 | ethtool_link_ksettings_add_link_mode(cmd, supported, | |
6178 | 1000baseT_Half); | |
6179 | ethtool_link_ksettings_add_link_mode(cmd, advertising, | |
6180 | 1000baseT_Half); | |
02d5cb5b | 6181 | case SPEED_100: |
41fc3b65 JW |
6182 | ethtool_link_ksettings_add_link_mode(cmd, supported, |
6183 | 100baseT_Full); | |
6184 | ethtool_link_ksettings_add_link_mode(cmd, advertising, | |
6185 | 100baseT_Full); | |
6186 | ethtool_link_ksettings_add_link_mode(cmd, supported, | |
6187 | 100baseT_Half); | |
6188 | ethtool_link_ksettings_add_link_mode(cmd, advertising, | |
6189 | 100baseT_Half); | |
02d5cb5b | 6190 | case SPEED_10: |
41fc3b65 JW |
6191 | ethtool_link_ksettings_add_link_mode(cmd, supported, |
6192 | 10baseT_Full); | |
6193 | ethtool_link_ksettings_add_link_mode(cmd, advertising, | |
6194 | 10baseT_Full); | |
6195 | ethtool_link_ksettings_add_link_mode(cmd, supported, | |
6196 | 10baseT_Half); | |
6197 | ethtool_link_ksettings_add_link_mode(cmd, advertising, | |
6198 | 10baseT_Half); | |
774afb8e JW |
6199 | /* end fallthrough */ |
6200 | break; | |
02d5cb5b | 6201 | default: |
41fc3b65 JW |
6202 | ethtool_link_ksettings_add_link_mode(cmd, supported, |
6203 | 10baseT_Full); | |
6204 | ethtool_link_ksettings_add_link_mode(cmd, advertising, | |
6205 | 10baseT_Full); | |
6206 | ethtool_link_ksettings_add_link_mode(cmd, supported, | |
6207 | 10baseT_Half); | |
6208 | ethtool_link_ksettings_add_link_mode(cmd, advertising, | |
6209 | 10baseT_Half); | |
02d5cb5b EC |
6210 | WARN_ON_ONCE(1); |
6211 | } | |
02d5cb5b EC |
6212 | } |
6213 | ||
993e19c0 JW |
6214 | int qeth_core_ethtool_get_link_ksettings(struct net_device *netdev, |
6215 | struct ethtool_link_ksettings *cmd) | |
3f9975aa | 6216 | { |
509e2562 | 6217 | struct qeth_card *card = netdev->ml_priv; |
3f9975aa | 6218 | enum qeth_link_types link_type; |
02d5cb5b | 6219 | struct carrier_info carrier_info; |
511c2445 | 6220 | int rc; |
3f9975aa FB |
6221 | |
6222 | if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan)) | |
6223 | link_type = QETH_LINK_TYPE_10GBIT_ETH; | |
6224 | else | |
6225 | link_type = card->info.link_type; | |
6226 | ||
993e19c0 JW |
6227 | cmd->base.duplex = DUPLEX_FULL; |
6228 | cmd->base.autoneg = AUTONEG_ENABLE; | |
6229 | cmd->base.phy_address = 0; | |
6230 | cmd->base.mdio_support = 0; | |
6231 | cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID; | |
6232 | cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_INVALID; | |
3f9975aa FB |
6233 | |
6234 | switch (link_type) { | |
6235 | case QETH_LINK_TYPE_FAST_ETH: | |
6236 | case QETH_LINK_TYPE_LANE_ETH100: | |
993e19c0 JW |
6237 | cmd->base.speed = SPEED_100; |
6238 | cmd->base.port = PORT_TP; | |
3f9975aa | 6239 | break; |
3f9975aa FB |
6240 | case QETH_LINK_TYPE_GBIT_ETH: |
6241 | case QETH_LINK_TYPE_LANE_ETH1000: | |
993e19c0 JW |
6242 | cmd->base.speed = SPEED_1000; |
6243 | cmd->base.port = PORT_FIBRE; | |
3f9975aa | 6244 | break; |
3f9975aa | 6245 | case QETH_LINK_TYPE_10GBIT_ETH: |
993e19c0 JW |
6246 | cmd->base.speed = SPEED_10000; |
6247 | cmd->base.port = PORT_FIBRE; | |
3f9975aa | 6248 | break; |
3f9975aa | 6249 | default: |
993e19c0 JW |
6250 | cmd->base.speed = SPEED_10; |
6251 | cmd->base.port = PORT_TP; | |
3f9975aa | 6252 | } |
993e19c0 | 6253 | qeth_set_cmd_adv_sup(cmd, cmd->base.speed, cmd->base.port); |
3f9975aa | 6254 | |
02d5cb5b EC |
6255 | /* Check if we can obtain more accurate information. */ |
6256 | /* If QUERY_CARD_INFO command is not supported or fails, */ | |
6257 | /* just return the heuristics that was filled above. */ | |
511c2445 EC |
6258 | if (!qeth_card_hw_is_reachable(card)) |
6259 | return -ENODEV; | |
6260 | rc = qeth_query_card_info(card, &carrier_info); | |
6261 | if (rc == -EOPNOTSUPP) /* for old hardware, return heuristic */ | |
02d5cb5b | 6262 | return 0; |
511c2445 EC |
6263 | if (rc) /* report error from the hardware operation */ |
6264 | return rc; | |
6265 | /* on success, fill in the information got from the hardware */ | |
02d5cb5b EC |
6266 | |
6267 | netdev_dbg(netdev, | |
6268 | "card info: card_type=0x%02x, port_mode=0x%04x, port_speed=0x%08x\n", | |
6269 | carrier_info.card_type, | |
6270 | carrier_info.port_mode, | |
6271 | carrier_info.port_speed); | |
6272 | ||
6273 | /* Update attributes for which we've obtained more authoritative */ | |
6274 | /* information, leave the rest the way they where filled above. */ | |
6275 | switch (carrier_info.card_type) { | |
6276 | case CARD_INFO_TYPE_1G_COPPER_A: | |
6277 | case CARD_INFO_TYPE_1G_COPPER_B: | |
993e19c0 JW |
6278 | cmd->base.port = PORT_TP; |
6279 | qeth_set_cmd_adv_sup(cmd, SPEED_1000, cmd->base.port); | |
02d5cb5b EC |
6280 | break; |
6281 | case CARD_INFO_TYPE_1G_FIBRE_A: | |
6282 | case CARD_INFO_TYPE_1G_FIBRE_B: | |
993e19c0 JW |
6283 | cmd->base.port = PORT_FIBRE; |
6284 | qeth_set_cmd_adv_sup(cmd, SPEED_1000, cmd->base.port); | |
02d5cb5b EC |
6285 | break; |
6286 | case CARD_INFO_TYPE_10G_FIBRE_A: | |
6287 | case CARD_INFO_TYPE_10G_FIBRE_B: | |
993e19c0 JW |
6288 | cmd->base.port = PORT_FIBRE; |
6289 | qeth_set_cmd_adv_sup(cmd, SPEED_10000, cmd->base.port); | |
02d5cb5b EC |
6290 | break; |
6291 | } | |
6292 | ||
6293 | switch (carrier_info.port_mode) { | |
6294 | case CARD_INFO_PORTM_FULLDUPLEX: | |
993e19c0 | 6295 | cmd->base.duplex = DUPLEX_FULL; |
02d5cb5b EC |
6296 | break; |
6297 | case CARD_INFO_PORTM_HALFDUPLEX: | |
993e19c0 | 6298 | cmd->base.duplex = DUPLEX_HALF; |
02d5cb5b EC |
6299 | break; |
6300 | } | |
6301 | ||
6302 | switch (carrier_info.port_speed) { | |
6303 | case CARD_INFO_PORTS_10M: | |
993e19c0 | 6304 | cmd->base.speed = SPEED_10; |
02d5cb5b EC |
6305 | break; |
6306 | case CARD_INFO_PORTS_100M: | |
993e19c0 | 6307 | cmd->base.speed = SPEED_100; |
02d5cb5b EC |
6308 | break; |
6309 | case CARD_INFO_PORTS_1G: | |
993e19c0 | 6310 | cmd->base.speed = SPEED_1000; |
02d5cb5b EC |
6311 | break; |
6312 | case CARD_INFO_PORTS_10G: | |
993e19c0 | 6313 | cmd->base.speed = SPEED_10000; |
02d5cb5b EC |
6314 | break; |
6315 | } | |
6316 | ||
3f9975aa FB |
6317 | return 0; |
6318 | } | |
993e19c0 | 6319 | EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_link_ksettings); |
3f9975aa | 6320 | |
c9475369 TR |
6321 | /* Callback to handle checksum offload command reply from OSA card. |
6322 | * Verify that required features have been enabled on the card. | |
6323 | * Return error in hdr->return_code as this value is checked by caller. | |
6324 | * | |
6325 | * Always returns zero to indicate no further messages from the OSA card. | |
6326 | */ | |
6327 | static int qeth_ipa_checksum_run_cmd_cb(struct qeth_card *card, | |
6328 | struct qeth_reply *reply, | |
6329 | unsigned long data) | |
6330 | { | |
6331 | struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; | |
6332 | struct qeth_checksum_cmd *chksum_cb = | |
6333 | (struct qeth_checksum_cmd *)reply->param; | |
6334 | ||
6335 | QETH_CARD_TEXT(card, 4, "chkdoccb"); | |
ad3cbf61 | 6336 | if (qeth_setassparms_inspect_rc(cmd)) |
c9475369 TR |
6337 | return 0; |
6338 | ||
6339 | memset(chksum_cb, 0, sizeof(*chksum_cb)); | |
6340 | if (cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) { | |
6341 | chksum_cb->supported = | |
6342 | cmd->data.setassparms.data.chksum.supported; | |
6343 | QETH_CARD_TEXT_(card, 3, "strt:%x", chksum_cb->supported); | |
6344 | } | |
6345 | if (cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_ENABLE) { | |
6346 | chksum_cb->supported = | |
6347 | cmd->data.setassparms.data.chksum.supported; | |
6348 | chksum_cb->enabled = | |
6349 | cmd->data.setassparms.data.chksum.enabled; | |
6350 | QETH_CARD_TEXT_(card, 3, "supp:%x", chksum_cb->supported); | |
6351 | QETH_CARD_TEXT_(card, 3, "enab:%x", chksum_cb->enabled); | |
6352 | } | |
6353 | return 0; | |
6354 | } | |
6355 | ||
6356 | /* Send command to OSA card and check results. */ | |
6357 | static int qeth_ipa_checksum_run_cmd(struct qeth_card *card, | |
6358 | enum qeth_ipa_funcs ipa_func, | |
6359 | __u16 cmd_code, long data, | |
a8155b00 KM |
6360 | struct qeth_checksum_cmd *chksum_cb, |
6361 | enum qeth_prot_versions prot) | |
c9475369 TR |
6362 | { |
6363 | struct qeth_cmd_buffer *iob; | |
6364 | int rc = -ENOMEM; | |
6365 | ||
6366 | QETH_CARD_TEXT(card, 4, "chkdocmd"); | |
6367 | iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code, | |
a8155b00 | 6368 | sizeof(__u32), prot); |
c9475369 TR |
6369 | if (iob) |
6370 | rc = qeth_send_setassparms(card, iob, sizeof(__u32), data, | |
6371 | qeth_ipa_checksum_run_cmd_cb, | |
6372 | chksum_cb); | |
6373 | return rc; | |
6374 | } | |
6375 | ||
a8155b00 KM |
6376 | static int qeth_send_checksum_on(struct qeth_card *card, int cstype, |
6377 | enum qeth_prot_versions prot) | |
4d7def2a | 6378 | { |
571f9dd8 | 6379 | u32 required_features = QETH_IPA_CHECKSUM_UDP | QETH_IPA_CHECKSUM_TCP; |
c9475369 | 6380 | struct qeth_checksum_cmd chksum_cb; |
4d7def2a TR |
6381 | int rc; |
6382 | ||
571f9dd8 KM |
6383 | if (prot == QETH_PROT_IPV4) |
6384 | required_features |= QETH_IPA_CHECKSUM_IP_HDR; | |
c9475369 | 6385 | rc = qeth_ipa_checksum_run_cmd(card, cstype, IPA_CMD_ASS_START, 0, |
a8155b00 | 6386 | &chksum_cb, prot); |
f9d8e6dc TR |
6387 | if (!rc) { |
6388 | if ((required_features & chksum_cb.supported) != | |
6389 | required_features) | |
6390 | rc = -EIO; | |
dae84c8e TR |
6391 | else if (!(QETH_IPA_CHECKSUM_LP2LP & chksum_cb.supported) && |
6392 | cstype == IPA_INBOUND_CHECKSUM) | |
6393 | dev_warn(&card->gdev->dev, | |
6394 | "Hardware checksumming is performed only if %s and its peer use different OSA Express 3 ports\n", | |
6395 | QETH_CARD_IFNAME(card)); | |
f9d8e6dc | 6396 | } |
4d7def2a | 6397 | if (rc) { |
a8155b00 KM |
6398 | qeth_send_simple_setassparms_prot(card, cstype, |
6399 | IPA_CMD_ASS_STOP, 0, prot); | |
8f43fb00 | 6400 | dev_warn(&card->gdev->dev, |
a8155b00 KM |
6401 | "Starting HW IPv%d checksumming for %s failed, using SW checksumming\n", |
6402 | prot, QETH_CARD_IFNAME(card)); | |
4d7def2a TR |
6403 | return rc; |
6404 | } | |
c9475369 | 6405 | rc = qeth_ipa_checksum_run_cmd(card, cstype, IPA_CMD_ASS_ENABLE, |
a8155b00 KM |
6406 | chksum_cb.supported, &chksum_cb, |
6407 | prot); | |
f9d8e6dc TR |
6408 | if (!rc) { |
6409 | if ((required_features & chksum_cb.enabled) != | |
6410 | required_features) | |
6411 | rc = -EIO; | |
6412 | } | |
4d7def2a | 6413 | if (rc) { |
a8155b00 KM |
6414 | qeth_send_simple_setassparms_prot(card, cstype, |
6415 | IPA_CMD_ASS_STOP, 0, prot); | |
8f43fb00 | 6416 | dev_warn(&card->gdev->dev, |
a8155b00 KM |
6417 | "Enabling HW IPv%d checksumming for %s failed, using SW checksumming\n", |
6418 | prot, QETH_CARD_IFNAME(card)); | |
4d7def2a TR |
6419 | return rc; |
6420 | } | |
8f43fb00 | 6421 | |
a8155b00 KM |
6422 | dev_info(&card->gdev->dev, "HW Checksumming (%sbound IPv%d) enabled\n", |
6423 | cstype == IPA_INBOUND_CHECKSUM ? "in" : "out", prot); | |
4d7def2a TR |
6424 | return 0; |
6425 | } | |
6426 | ||
a8155b00 KM |
6427 | static int qeth_set_ipa_csum(struct qeth_card *card, bool on, int cstype, |
6428 | enum qeth_prot_versions prot) | |
4d7def2a | 6429 | { |
a8155b00 KM |
6430 | int rc = (on) ? qeth_send_checksum_on(card, cstype, prot) |
6431 | : qeth_send_simple_setassparms_prot(card, cstype, | |
6432 | IPA_CMD_ASS_STOP, 0, | |
6433 | prot); | |
c9475369 | 6434 | return rc ? -EIO : 0; |
4d7def2a | 6435 | } |
4d7def2a | 6436 | |
8f43fb00 | 6437 | static int qeth_set_ipa_tso(struct qeth_card *card, int on) |
4d7def2a | 6438 | { |
8f43fb00 | 6439 | int rc; |
4d7def2a | 6440 | |
8f43fb00 | 6441 | QETH_CARD_TEXT(card, 3, "sttso"); |
4d7def2a | 6442 | |
8f43fb00 TR |
6443 | if (on) { |
6444 | rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO, | |
6445 | IPA_CMD_ASS_START, 0); | |
6446 | if (rc) { | |
6447 | dev_warn(&card->gdev->dev, | |
6448 | "Starting outbound TCP segmentation offload for %s failed\n", | |
6449 | QETH_CARD_IFNAME(card)); | |
6450 | return -EIO; | |
6451 | } | |
6452 | dev_info(&card->gdev->dev, "Outbound TSO enabled\n"); | |
6453 | } else { | |
6454 | rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO, | |
6455 | IPA_CMD_ASS_STOP, 0); | |
6456 | } | |
4d7def2a TR |
6457 | return rc; |
6458 | } | |
8f43fb00 | 6459 | |
d7e6ed97 KM |
6460 | static int qeth_set_ipa_rx_csum(struct qeth_card *card, bool on) |
6461 | { | |
6462 | int rc_ipv4 = (on) ? -EOPNOTSUPP : 0; | |
6463 | int rc_ipv6; | |
6464 | ||
6465 | if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) | |
6466 | rc_ipv4 = qeth_set_ipa_csum(card, on, IPA_INBOUND_CHECKSUM, | |
6467 | QETH_PROT_IPV4); | |
6468 | if (!qeth_is_supported6(card, IPA_INBOUND_CHECKSUM_V6)) | |
6469 | /* no/one Offload Assist available, so the rc is trivial */ | |
6470 | return rc_ipv4; | |
ce344356 | 6471 | |
d7e6ed97 KM |
6472 | rc_ipv6 = qeth_set_ipa_csum(card, on, IPA_INBOUND_CHECKSUM, |
6473 | QETH_PROT_IPV6); | |
6474 | ||
6475 | if (on) | |
6476 | /* enable: success if any Assist is active */ | |
6477 | return (rc_ipv6) ? rc_ipv4 : 0; | |
6478 | ||
6479 | /* disable: failure if any Assist is still active */ | |
6480 | return (rc_ipv6) ? rc_ipv6 : rc_ipv4; | |
6481 | } | |
6482 | ||
571f9dd8 KM |
6483 | #define QETH_HW_FEATURES (NETIF_F_RXCSUM | NETIF_F_IP_CSUM | NETIF_F_TSO | \ |
6484 | NETIF_F_IPV6_CSUM) | |
ce344356 | 6485 | /** |
d025da9e JW |
6486 | * qeth_enable_hw_features() - (Re-)Enable HW functions for device features |
6487 | * @dev: a net_device | |
ce344356 | 6488 | */ |
d025da9e | 6489 | void qeth_enable_hw_features(struct net_device *dev) |
e830baa9 HW |
6490 | { |
6491 | struct qeth_card *card = dev->ml_priv; | |
d025da9e | 6492 | netdev_features_t features; |
e830baa9 | 6493 | |
d025da9e JW |
6494 | rtnl_lock(); |
6495 | features = dev->features; | |
ce344356 JW |
6496 | /* force-off any feature that needs an IPA sequence. |
6497 | * netdev_update_features() will restart them. | |
6498 | */ | |
6499 | dev->features &= ~QETH_HW_FEATURES; | |
6500 | netdev_update_features(dev); | |
d025da9e JW |
6501 | if (features != dev->features) |
6502 | dev_warn(&card->gdev->dev, | |
6503 | "Device recovery failed to restore all offload features\n"); | |
6504 | rtnl_unlock(); | |
e830baa9 | 6505 | } |
d025da9e | 6506 | EXPORT_SYMBOL_GPL(qeth_enable_hw_features); |
e830baa9 | 6507 | |
8f43fb00 TR |
6508 | int qeth_set_features(struct net_device *dev, netdev_features_t features) |
6509 | { | |
6510 | struct qeth_card *card = dev->ml_priv; | |
6c7cd712 | 6511 | netdev_features_t changed = dev->features ^ features; |
8f43fb00 TR |
6512 | int rc = 0; |
6513 | ||
6514 | QETH_DBF_TEXT(SETUP, 2, "setfeat"); | |
6515 | QETH_DBF_HEX(SETUP, 2, &features, sizeof(features)); | |
6516 | ||
6c7cd712 | 6517 | if ((changed & NETIF_F_IP_CSUM)) { |
a8155b00 KM |
6518 | rc = qeth_set_ipa_csum(card, features & NETIF_F_IP_CSUM, |
6519 | IPA_OUTBOUND_CHECKSUM, QETH_PROT_IPV4); | |
6c7cd712 HW |
6520 | if (rc) |
6521 | changed ^= NETIF_F_IP_CSUM; | |
6522 | } | |
571f9dd8 KM |
6523 | if (changed & NETIF_F_IPV6_CSUM) { |
6524 | rc = qeth_set_ipa_csum(card, features & NETIF_F_IPV6_CSUM, | |
6525 | IPA_OUTBOUND_CHECKSUM, QETH_PROT_IPV6); | |
6526 | if (rc) | |
6527 | changed ^= NETIF_F_IPV6_CSUM; | |
6528 | } | |
d7e6ed97 KM |
6529 | if (changed & NETIF_F_RXCSUM) { |
6530 | rc = qeth_set_ipa_rx_csum(card, features & NETIF_F_RXCSUM); | |
6c7cd712 HW |
6531 | if (rc) |
6532 | changed ^= NETIF_F_RXCSUM; | |
6533 | } | |
6534 | if ((changed & NETIF_F_TSO)) { | |
6535 | rc = qeth_set_ipa_tso(card, features & NETIF_F_TSO ? 1 : 0); | |
6536 | if (rc) | |
6537 | changed ^= NETIF_F_TSO; | |
6538 | } | |
6539 | ||
6540 | /* everything changed successfully? */ | |
6541 | if ((dev->features ^ features) == changed) | |
6542 | return 0; | |
6543 | /* something went wrong. save changed features and return error */ | |
6544 | dev->features ^= changed; | |
6545 | return -EIO; | |
8f43fb00 TR |
6546 | } |
6547 | EXPORT_SYMBOL_GPL(qeth_set_features); | |
6548 | ||
6549 | netdev_features_t qeth_fix_features(struct net_device *dev, | |
6550 | netdev_features_t features) | |
6551 | { | |
6552 | struct qeth_card *card = dev->ml_priv; | |
6553 | ||
6554 | QETH_DBF_TEXT(SETUP, 2, "fixfeat"); | |
6555 | if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) | |
6556 | features &= ~NETIF_F_IP_CSUM; | |
571f9dd8 KM |
6557 | if (!qeth_is_supported6(card, IPA_OUTBOUND_CHECKSUM_V6)) |
6558 | features &= ~NETIF_F_IPV6_CSUM; | |
d7e6ed97 KM |
6559 | if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM) && |
6560 | !qeth_is_supported6(card, IPA_INBOUND_CHECKSUM_V6)) | |
8f43fb00 | 6561 | features &= ~NETIF_F_RXCSUM; |
cf536ffe | 6562 | if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) |
8f43fb00 | 6563 | features &= ~NETIF_F_TSO; |
6c7cd712 HW |
6564 | /* if the card isn't up, remove features that require hw changes */ |
6565 | if (card->state == CARD_STATE_DOWN || | |
6566 | card->state == CARD_STATE_RECOVER) | |
ce344356 | 6567 | features &= ~QETH_HW_FEATURES; |
8f43fb00 TR |
6568 | QETH_DBF_HEX(SETUP, 2, &features, sizeof(features)); |
6569 | return features; | |
6570 | } | |
6571 | EXPORT_SYMBOL_GPL(qeth_fix_features); | |
4d7def2a | 6572 | |
6d69b1f1 JW |
6573 | netdev_features_t qeth_features_check(struct sk_buff *skb, |
6574 | struct net_device *dev, | |
6575 | netdev_features_t features) | |
6576 | { | |
6577 | /* GSO segmentation builds skbs with | |
6578 | * a (small) linear part for the headers, and | |
6579 | * page frags for the data. | |
6580 | * Compared to a linear skb, the header-only part consumes an | |
6581 | * additional buffer element. This reduces buffer utilization, and | |
6582 | * hurts throughput. So compress small segments into one element. | |
6583 | */ | |
6584 | if (netif_needs_gso(skb, features)) { | |
6585 | /* match skb_segment(): */ | |
6586 | unsigned int doffset = skb->data - skb_mac_header(skb); | |
6587 | unsigned int hsize = skb_shinfo(skb)->gso_size; | |
6588 | unsigned int hroom = skb_headroom(skb); | |
6589 | ||
6590 | /* linearize only if resulting skb allocations are order-0: */ | |
6591 | if (SKB_DATA_ALIGN(hroom + doffset + hsize) <= SKB_MAX_HEAD(0)) | |
6592 | features &= ~NETIF_F_SG; | |
6593 | } | |
6594 | ||
6595 | return vlan_features_check(skb, features); | |
6596 | } | |
6597 | EXPORT_SYMBOL_GPL(qeth_features_check); | |
6598 | ||
4a71df50 FB |
6599 | static int __init qeth_core_init(void) |
6600 | { | |
6601 | int rc; | |
6602 | ||
74eacdb9 | 6603 | pr_info("loading core functions\n"); |
4a71df50 | 6604 | INIT_LIST_HEAD(&qeth_core_card_list.list); |
819dc537 | 6605 | INIT_LIST_HEAD(&qeth_dbf_list); |
4a71df50 | 6606 | rwlock_init(&qeth_core_card_list.rwlock); |
2022e00c | 6607 | mutex_init(&qeth_mod_mutex); |
4a71df50 | 6608 | |
0f54761d | 6609 | qeth_wq = create_singlethread_workqueue("qeth_wq"); |
a936b1ef JW |
6610 | if (!qeth_wq) { |
6611 | rc = -ENOMEM; | |
6612 | goto out_err; | |
6613 | } | |
0f54761d | 6614 | |
4a71df50 FB |
6615 | rc = qeth_register_dbf_views(); |
6616 | if (rc) | |
a936b1ef | 6617 | goto dbf_err; |
035da16f | 6618 | qeth_core_root_dev = root_device_register("qeth"); |
9262c6c2 | 6619 | rc = PTR_ERR_OR_ZERO(qeth_core_root_dev); |
4a71df50 FB |
6620 | if (rc) |
6621 | goto register_err; | |
683d718a FB |
6622 | qeth_core_header_cache = kmem_cache_create("qeth_hdr", |
6623 | sizeof(struct qeth_hdr) + ETH_HLEN, 64, 0, NULL); | |
6624 | if (!qeth_core_header_cache) { | |
6625 | rc = -ENOMEM; | |
6626 | goto slab_err; | |
6627 | } | |
0da9581d EL |
6628 | qeth_qdio_outbuf_cache = kmem_cache_create("qeth_buf", |
6629 | sizeof(struct qeth_qdio_out_buffer), 0, 0, NULL); | |
6630 | if (!qeth_qdio_outbuf_cache) { | |
6631 | rc = -ENOMEM; | |
6632 | goto cqslab_err; | |
6633 | } | |
afb6ac59 SO |
6634 | rc = ccw_driver_register(&qeth_ccw_driver); |
6635 | if (rc) | |
6636 | goto ccw_err; | |
afb6ac59 SO |
6637 | rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver); |
6638 | if (rc) | |
6639 | goto ccwgroup_err; | |
0da9581d | 6640 | |
683d718a | 6641 | return 0; |
afb6ac59 SO |
6642 | |
6643 | ccwgroup_err: | |
6644 | ccw_driver_unregister(&qeth_ccw_driver); | |
6645 | ccw_err: | |
6646 | kmem_cache_destroy(qeth_qdio_outbuf_cache); | |
0da9581d EL |
6647 | cqslab_err: |
6648 | kmem_cache_destroy(qeth_core_header_cache); | |
683d718a | 6649 | slab_err: |
035da16f | 6650 | root_device_unregister(qeth_core_root_dev); |
4a71df50 | 6651 | register_err: |
4a71df50 | 6652 | qeth_unregister_dbf_views(); |
a936b1ef JW |
6653 | dbf_err: |
6654 | destroy_workqueue(qeth_wq); | |
4a71df50 | 6655 | out_err: |
74eacdb9 | 6656 | pr_err("Initializing the qeth device driver failed\n"); |
4a71df50 FB |
6657 | return rc; |
6658 | } | |
6659 | ||
6660 | static void __exit qeth_core_exit(void) | |
6661 | { | |
819dc537 | 6662 | qeth_clear_dbf_list(); |
0f54761d | 6663 | destroy_workqueue(qeth_wq); |
4a71df50 FB |
6664 | ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver); |
6665 | ccw_driver_unregister(&qeth_ccw_driver); | |
0da9581d | 6666 | kmem_cache_destroy(qeth_qdio_outbuf_cache); |
683d718a | 6667 | kmem_cache_destroy(qeth_core_header_cache); |
afb6ac59 | 6668 | root_device_unregister(qeth_core_root_dev); |
4a71df50 | 6669 | qeth_unregister_dbf_views(); |
74eacdb9 | 6670 | pr_info("core functions removed\n"); |
4a71df50 FB |
6671 | } |
6672 | ||
6673 | module_init(qeth_core_init); | |
6674 | module_exit(qeth_core_exit); | |
6675 | MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); | |
6676 | MODULE_DESCRIPTION("qeth core functions"); | |
6677 | MODULE_LICENSE("GPL"); |