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