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4a71df50 FB |
1 | /* |
2 | * drivers/s390/net/qeth_core_main.c | |
3 | * | |
4 | * Copyright IBM Corp. 2007 | |
5 | * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, | |
6 | * Frank Pavlic <fpavlic@de.ibm.com>, | |
7 | * Thomas Spatzier <tspat@de.ibm.com>, | |
8 | * Frank Blaschka <frank.blaschka@de.ibm.com> | |
9 | */ | |
10 | ||
11 | #include <linux/module.h> | |
12 | #include <linux/moduleparam.h> | |
13 | #include <linux/string.h> | |
14 | #include <linux/errno.h> | |
15 | #include <linux/kernel.h> | |
16 | #include <linux/ip.h> | |
17 | #include <linux/ipv6.h> | |
18 | #include <linux/tcp.h> | |
19 | #include <linux/mii.h> | |
20 | #include <linux/kthread.h> | |
21 | ||
22 | #include <asm-s390/ebcdic.h> | |
23 | #include <asm-s390/io.h> | |
24 | #include <asm/s390_rdev.h> | |
25 | ||
26 | #include "qeth_core.h" | |
27 | #include "qeth_core_offl.h" | |
28 | ||
d11ba0c4 PT |
29 | struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = { |
30 | /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */ | |
31 | /* N P A M L V H */ | |
32 | [QETH_DBF_SETUP] = {"qeth_setup", | |
33 | 8, 1, 8, 5, &debug_hex_ascii_view, NULL}, | |
34 | [QETH_DBF_QERR] = {"qeth_qerr", | |
35 | 2, 1, 8, 2, &debug_hex_ascii_view, NULL}, | |
36 | [QETH_DBF_TRACE] = {"qeth_trace", | |
37 | 4, 1, 8, 3, &debug_hex_ascii_view, NULL}, | |
38 | [QETH_DBF_MSG] = {"qeth_msg", | |
39 | 8, 1, 128, 3, &debug_sprintf_view, NULL}, | |
40 | [QETH_DBF_SENSE] = {"qeth_sense", | |
41 | 2, 1, 64, 2, &debug_hex_ascii_view, NULL}, | |
42 | [QETH_DBF_MISC] = {"qeth_misc", | |
43 | 2, 1, 256, 2, &debug_hex_ascii_view, NULL}, | |
44 | [QETH_DBF_CTRL] = {"qeth_control", | |
45 | 8, 1, QETH_DBF_CTRL_LEN, 5, &debug_hex_ascii_view, NULL}, | |
46 | }; | |
47 | EXPORT_SYMBOL_GPL(qeth_dbf); | |
4a71df50 FB |
48 | |
49 | struct qeth_card_list_struct qeth_core_card_list; | |
50 | EXPORT_SYMBOL_GPL(qeth_core_card_list); | |
4a71df50 FB |
51 | |
52 | static struct device *qeth_core_root_dev; | |
53 | static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY; | |
54 | static struct lock_class_key qdio_out_skb_queue_key; | |
4a71df50 FB |
55 | |
56 | static void qeth_send_control_data_cb(struct qeth_channel *, | |
57 | struct qeth_cmd_buffer *); | |
58 | static int qeth_issue_next_read(struct qeth_card *); | |
59 | static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *); | |
60 | static void qeth_setup_ccw(struct qeth_channel *, unsigned char *, __u32); | |
61 | static void qeth_free_buffer_pool(struct qeth_card *); | |
62 | static int qeth_qdio_establish(struct qeth_card *); | |
63 | ||
64 | ||
65 | static inline void __qeth_fill_buffer_frag(struct sk_buff *skb, | |
66 | struct qdio_buffer *buffer, int is_tso, | |
67 | int *next_element_to_fill) | |
68 | { | |
69 | struct skb_frag_struct *frag; | |
70 | int fragno; | |
71 | unsigned long addr; | |
72 | int element, cnt, dlen; | |
73 | ||
74 | fragno = skb_shinfo(skb)->nr_frags; | |
75 | element = *next_element_to_fill; | |
76 | dlen = 0; | |
77 | ||
78 | if (is_tso) | |
79 | buffer->element[element].flags = | |
80 | SBAL_FLAGS_MIDDLE_FRAG; | |
81 | else | |
82 | buffer->element[element].flags = | |
83 | SBAL_FLAGS_FIRST_FRAG; | |
84 | dlen = skb->len - skb->data_len; | |
85 | if (dlen) { | |
86 | buffer->element[element].addr = skb->data; | |
87 | buffer->element[element].length = dlen; | |
88 | element++; | |
89 | } | |
90 | for (cnt = 0; cnt < fragno; cnt++) { | |
91 | frag = &skb_shinfo(skb)->frags[cnt]; | |
92 | addr = (page_to_pfn(frag->page) << PAGE_SHIFT) + | |
93 | frag->page_offset; | |
94 | buffer->element[element].addr = (char *)addr; | |
95 | buffer->element[element].length = frag->size; | |
96 | if (cnt < (fragno - 1)) | |
97 | buffer->element[element].flags = | |
98 | SBAL_FLAGS_MIDDLE_FRAG; | |
99 | else | |
100 | buffer->element[element].flags = | |
101 | SBAL_FLAGS_LAST_FRAG; | |
102 | element++; | |
103 | } | |
104 | *next_element_to_fill = element; | |
105 | } | |
106 | ||
107 | static inline const char *qeth_get_cardname(struct qeth_card *card) | |
108 | { | |
109 | if (card->info.guestlan) { | |
110 | switch (card->info.type) { | |
111 | case QETH_CARD_TYPE_OSAE: | |
112 | return " Guest LAN QDIO"; | |
113 | case QETH_CARD_TYPE_IQD: | |
114 | return " Guest LAN Hiper"; | |
115 | default: | |
116 | return " unknown"; | |
117 | } | |
118 | } else { | |
119 | switch (card->info.type) { | |
120 | case QETH_CARD_TYPE_OSAE: | |
121 | return " OSD Express"; | |
122 | case QETH_CARD_TYPE_IQD: | |
123 | return " HiperSockets"; | |
124 | case QETH_CARD_TYPE_OSN: | |
125 | return " OSN QDIO"; | |
126 | default: | |
127 | return " unknown"; | |
128 | } | |
129 | } | |
130 | return " n/a"; | |
131 | } | |
132 | ||
133 | /* max length to be returned: 14 */ | |
134 | const char *qeth_get_cardname_short(struct qeth_card *card) | |
135 | { | |
136 | if (card->info.guestlan) { | |
137 | switch (card->info.type) { | |
138 | case QETH_CARD_TYPE_OSAE: | |
139 | return "GuestLAN QDIO"; | |
140 | case QETH_CARD_TYPE_IQD: | |
141 | return "GuestLAN Hiper"; | |
142 | default: | |
143 | return "unknown"; | |
144 | } | |
145 | } else { | |
146 | switch (card->info.type) { | |
147 | case QETH_CARD_TYPE_OSAE: | |
148 | switch (card->info.link_type) { | |
149 | case QETH_LINK_TYPE_FAST_ETH: | |
150 | return "OSD_100"; | |
151 | case QETH_LINK_TYPE_HSTR: | |
152 | return "HSTR"; | |
153 | case QETH_LINK_TYPE_GBIT_ETH: | |
154 | return "OSD_1000"; | |
155 | case QETH_LINK_TYPE_10GBIT_ETH: | |
156 | return "OSD_10GIG"; | |
157 | case QETH_LINK_TYPE_LANE_ETH100: | |
158 | return "OSD_FE_LANE"; | |
159 | case QETH_LINK_TYPE_LANE_TR: | |
160 | return "OSD_TR_LANE"; | |
161 | case QETH_LINK_TYPE_LANE_ETH1000: | |
162 | return "OSD_GbE_LANE"; | |
163 | case QETH_LINK_TYPE_LANE: | |
164 | return "OSD_ATM_LANE"; | |
165 | default: | |
166 | return "OSD_Express"; | |
167 | } | |
168 | case QETH_CARD_TYPE_IQD: | |
169 | return "HiperSockets"; | |
170 | case QETH_CARD_TYPE_OSN: | |
171 | return "OSN"; | |
172 | default: | |
173 | return "unknown"; | |
174 | } | |
175 | } | |
176 | return "n/a"; | |
177 | } | |
178 | ||
179 | void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads, | |
180 | int clear_start_mask) | |
181 | { | |
182 | unsigned long flags; | |
183 | ||
184 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
185 | card->thread_allowed_mask = threads; | |
186 | if (clear_start_mask) | |
187 | card->thread_start_mask &= threads; | |
188 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
189 | wake_up(&card->wait_q); | |
190 | } | |
191 | EXPORT_SYMBOL_GPL(qeth_set_allowed_threads); | |
192 | ||
193 | int qeth_threads_running(struct qeth_card *card, unsigned long threads) | |
194 | { | |
195 | unsigned long flags; | |
196 | int rc = 0; | |
197 | ||
198 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
199 | rc = (card->thread_running_mask & threads); | |
200 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
201 | return rc; | |
202 | } | |
203 | EXPORT_SYMBOL_GPL(qeth_threads_running); | |
204 | ||
205 | int qeth_wait_for_threads(struct qeth_card *card, unsigned long threads) | |
206 | { | |
207 | return wait_event_interruptible(card->wait_q, | |
208 | qeth_threads_running(card, threads) == 0); | |
209 | } | |
210 | EXPORT_SYMBOL_GPL(qeth_wait_for_threads); | |
211 | ||
212 | void qeth_clear_working_pool_list(struct qeth_card *card) | |
213 | { | |
214 | struct qeth_buffer_pool_entry *pool_entry, *tmp; | |
215 | ||
d11ba0c4 | 216 | QETH_DBF_TEXT(TRACE, 5, "clwrklst"); |
4a71df50 FB |
217 | list_for_each_entry_safe(pool_entry, tmp, |
218 | &card->qdio.in_buf_pool.entry_list, list){ | |
219 | list_del(&pool_entry->list); | |
220 | } | |
221 | } | |
222 | EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list); | |
223 | ||
224 | static int qeth_alloc_buffer_pool(struct qeth_card *card) | |
225 | { | |
226 | struct qeth_buffer_pool_entry *pool_entry; | |
227 | void *ptr; | |
228 | int i, j; | |
229 | ||
d11ba0c4 | 230 | QETH_DBF_TEXT(TRACE, 5, "alocpool"); |
4a71df50 FB |
231 | for (i = 0; i < card->qdio.init_pool.buf_count; ++i) { |
232 | pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL); | |
233 | if (!pool_entry) { | |
234 | qeth_free_buffer_pool(card); | |
235 | return -ENOMEM; | |
236 | } | |
237 | for (j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j) { | |
508b3c4f | 238 | ptr = (void *) __get_free_page(GFP_KERNEL); |
4a71df50 FB |
239 | if (!ptr) { |
240 | while (j > 0) | |
241 | free_page((unsigned long) | |
242 | pool_entry->elements[--j]); | |
243 | kfree(pool_entry); | |
244 | qeth_free_buffer_pool(card); | |
245 | return -ENOMEM; | |
246 | } | |
247 | pool_entry->elements[j] = ptr; | |
248 | } | |
249 | list_add(&pool_entry->init_list, | |
250 | &card->qdio.init_pool.entry_list); | |
251 | } | |
252 | return 0; | |
253 | } | |
254 | ||
255 | int qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt) | |
256 | { | |
d11ba0c4 | 257 | QETH_DBF_TEXT(TRACE, 2, "realcbp"); |
4a71df50 FB |
258 | |
259 | if ((card->state != CARD_STATE_DOWN) && | |
260 | (card->state != CARD_STATE_RECOVER)) | |
261 | return -EPERM; | |
262 | ||
263 | /* TODO: steel/add buffers from/to a running card's buffer pool (?) */ | |
264 | qeth_clear_working_pool_list(card); | |
265 | qeth_free_buffer_pool(card); | |
266 | card->qdio.in_buf_pool.buf_count = bufcnt; | |
267 | card->qdio.init_pool.buf_count = bufcnt; | |
268 | return qeth_alloc_buffer_pool(card); | |
269 | } | |
270 | ||
271 | int qeth_set_large_send(struct qeth_card *card, | |
272 | enum qeth_large_send_types type) | |
273 | { | |
274 | int rc = 0; | |
275 | ||
276 | if (card->dev == NULL) { | |
277 | card->options.large_send = type; | |
278 | return 0; | |
279 | } | |
280 | if (card->state == CARD_STATE_UP) | |
281 | netif_tx_disable(card->dev); | |
282 | card->options.large_send = type; | |
283 | switch (card->options.large_send) { | |
284 | case QETH_LARGE_SEND_EDDP: | |
285 | card->dev->features |= NETIF_F_TSO | NETIF_F_SG | | |
286 | NETIF_F_HW_CSUM; | |
287 | break; | |
288 | case QETH_LARGE_SEND_TSO: | |
289 | if (qeth_is_supported(card, IPA_OUTBOUND_TSO)) { | |
290 | card->dev->features |= NETIF_F_TSO | NETIF_F_SG | | |
291 | NETIF_F_HW_CSUM; | |
292 | } else { | |
293 | PRINT_WARN("TSO not supported on %s. " | |
294 | "large_send set to 'no'.\n", | |
295 | card->dev->name); | |
296 | card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG | | |
297 | NETIF_F_HW_CSUM); | |
298 | card->options.large_send = QETH_LARGE_SEND_NO; | |
299 | rc = -EOPNOTSUPP; | |
300 | } | |
301 | break; | |
302 | default: /* includes QETH_LARGE_SEND_NO */ | |
303 | card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG | | |
304 | NETIF_F_HW_CSUM); | |
305 | break; | |
306 | } | |
307 | if (card->state == CARD_STATE_UP) | |
308 | netif_wake_queue(card->dev); | |
309 | return rc; | |
310 | } | |
311 | EXPORT_SYMBOL_GPL(qeth_set_large_send); | |
312 | ||
313 | static int qeth_issue_next_read(struct qeth_card *card) | |
314 | { | |
315 | int rc; | |
316 | struct qeth_cmd_buffer *iob; | |
317 | ||
d11ba0c4 | 318 | QETH_DBF_TEXT(TRACE, 5, "issnxrd"); |
4a71df50 FB |
319 | if (card->read.state != CH_STATE_UP) |
320 | return -EIO; | |
321 | iob = qeth_get_buffer(&card->read); | |
322 | if (!iob) { | |
323 | PRINT_WARN("issue_next_read failed: no iob available!\n"); | |
324 | return -ENOMEM; | |
325 | } | |
326 | qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE); | |
d11ba0c4 | 327 | QETH_DBF_TEXT(TRACE, 6, "noirqpnd"); |
4a71df50 FB |
328 | rc = ccw_device_start(card->read.ccwdev, &card->read.ccw, |
329 | (addr_t) iob, 0, 0); | |
330 | if (rc) { | |
331 | PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc); | |
332 | atomic_set(&card->read.irq_pending, 0); | |
333 | qeth_schedule_recovery(card); | |
334 | wake_up(&card->wait_q); | |
335 | } | |
336 | return rc; | |
337 | } | |
338 | ||
339 | static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card) | |
340 | { | |
341 | struct qeth_reply *reply; | |
342 | ||
343 | reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC); | |
344 | if (reply) { | |
345 | atomic_set(&reply->refcnt, 1); | |
346 | atomic_set(&reply->received, 0); | |
347 | reply->card = card; | |
348 | }; | |
349 | return reply; | |
350 | } | |
351 | ||
352 | static void qeth_get_reply(struct qeth_reply *reply) | |
353 | { | |
354 | WARN_ON(atomic_read(&reply->refcnt) <= 0); | |
355 | atomic_inc(&reply->refcnt); | |
356 | } | |
357 | ||
358 | static void qeth_put_reply(struct qeth_reply *reply) | |
359 | { | |
360 | WARN_ON(atomic_read(&reply->refcnt) <= 0); | |
361 | if (atomic_dec_and_test(&reply->refcnt)) | |
362 | kfree(reply); | |
363 | } | |
364 | ||
d11ba0c4 | 365 | static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc, |
4a71df50 FB |
366 | struct qeth_card *card) |
367 | { | |
4a71df50 | 368 | char *ipa_name; |
d11ba0c4 | 369 | int com = cmd->hdr.command; |
4a71df50 | 370 | ipa_name = qeth_get_ipa_cmd_name(com); |
d11ba0c4 PT |
371 | if (rc) |
372 | QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s returned x%X \"%s\"\n", | |
373 | ipa_name, com, QETH_CARD_IFNAME(card), | |
374 | rc, qeth_get_ipa_msg(rc)); | |
375 | else | |
376 | QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s succeeded\n", | |
377 | ipa_name, com, QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
378 | } |
379 | ||
380 | static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card, | |
381 | struct qeth_cmd_buffer *iob) | |
382 | { | |
383 | struct qeth_ipa_cmd *cmd = NULL; | |
384 | ||
d11ba0c4 | 385 | QETH_DBF_TEXT(TRACE, 5, "chkipad"); |
4a71df50 FB |
386 | if (IS_IPA(iob->data)) { |
387 | cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data); | |
388 | if (IS_IPA_REPLY(cmd)) { | |
d11ba0c4 PT |
389 | if (cmd->hdr.command < IPA_CMD_SETCCID || |
390 | cmd->hdr.command > IPA_CMD_MODCCID) | |
391 | qeth_issue_ipa_msg(cmd, | |
392 | cmd->hdr.return_code, card); | |
4a71df50 FB |
393 | return cmd; |
394 | } else { | |
395 | switch (cmd->hdr.command) { | |
396 | case IPA_CMD_STOPLAN: | |
397 | PRINT_WARN("Link failure on %s (CHPID 0x%X) - " | |
398 | "there is a network problem or " | |
399 | "someone pulled the cable or " | |
400 | "disabled the port.\n", | |
401 | QETH_CARD_IFNAME(card), | |
402 | card->info.chpid); | |
403 | card->lan_online = 0; | |
404 | if (card->dev && netif_carrier_ok(card->dev)) | |
405 | netif_carrier_off(card->dev); | |
406 | return NULL; | |
407 | case IPA_CMD_STARTLAN: | |
408 | PRINT_INFO("Link reestablished on %s " | |
409 | "(CHPID 0x%X). Scheduling " | |
410 | "IP address reset.\n", | |
411 | QETH_CARD_IFNAME(card), | |
412 | card->info.chpid); | |
413 | netif_carrier_on(card->dev); | |
922dc062 | 414 | card->lan_online = 1; |
4a71df50 FB |
415 | qeth_schedule_recovery(card); |
416 | return NULL; | |
417 | case IPA_CMD_MODCCID: | |
418 | return cmd; | |
419 | case IPA_CMD_REGISTER_LOCAL_ADDR: | |
d11ba0c4 | 420 | QETH_DBF_TEXT(TRACE, 3, "irla"); |
4a71df50 FB |
421 | break; |
422 | case IPA_CMD_UNREGISTER_LOCAL_ADDR: | |
d11ba0c4 | 423 | QETH_DBF_TEXT(TRACE, 3, "urla"); |
4a71df50 FB |
424 | break; |
425 | default: | |
426 | PRINT_WARN("Received data is IPA " | |
427 | "but not a reply!\n"); | |
428 | break; | |
429 | } | |
430 | } | |
431 | } | |
432 | return cmd; | |
433 | } | |
434 | ||
435 | void qeth_clear_ipacmd_list(struct qeth_card *card) | |
436 | { | |
437 | struct qeth_reply *reply, *r; | |
438 | unsigned long flags; | |
439 | ||
d11ba0c4 | 440 | QETH_DBF_TEXT(TRACE, 4, "clipalst"); |
4a71df50 FB |
441 | |
442 | spin_lock_irqsave(&card->lock, flags); | |
443 | list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) { | |
444 | qeth_get_reply(reply); | |
445 | reply->rc = -EIO; | |
446 | atomic_inc(&reply->received); | |
447 | list_del_init(&reply->list); | |
448 | wake_up(&reply->wait_q); | |
449 | qeth_put_reply(reply); | |
450 | } | |
451 | spin_unlock_irqrestore(&card->lock, flags); | |
452 | } | |
453 | EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list); | |
454 | ||
455 | static int qeth_check_idx_response(unsigned char *buffer) | |
456 | { | |
457 | if (!buffer) | |
458 | return 0; | |
459 | ||
d11ba0c4 | 460 | QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN); |
4a71df50 FB |
461 | if ((buffer[2] & 0xc0) == 0xc0) { |
462 | PRINT_WARN("received an IDX TERMINATE " | |
463 | "with cause code 0x%02x%s\n", | |
464 | buffer[4], | |
465 | ((buffer[4] == 0x22) ? | |
466 | " -- try another portname" : "")); | |
d11ba0c4 PT |
467 | QETH_DBF_TEXT(TRACE, 2, "ckidxres"); |
468 | QETH_DBF_TEXT(TRACE, 2, " idxterm"); | |
469 | QETH_DBF_TEXT_(TRACE, 2, " rc%d", -EIO); | |
4a71df50 FB |
470 | return -EIO; |
471 | } | |
472 | return 0; | |
473 | } | |
474 | ||
475 | static void qeth_setup_ccw(struct qeth_channel *channel, unsigned char *iob, | |
476 | __u32 len) | |
477 | { | |
478 | struct qeth_card *card; | |
479 | ||
d11ba0c4 | 480 | QETH_DBF_TEXT(TRACE, 4, "setupccw"); |
4a71df50 FB |
481 | card = CARD_FROM_CDEV(channel->ccwdev); |
482 | if (channel == &card->read) | |
483 | memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1)); | |
484 | else | |
485 | memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1)); | |
486 | channel->ccw.count = len; | |
487 | channel->ccw.cda = (__u32) __pa(iob); | |
488 | } | |
489 | ||
490 | static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel) | |
491 | { | |
492 | __u8 index; | |
493 | ||
d11ba0c4 | 494 | QETH_DBF_TEXT(TRACE, 6, "getbuff"); |
4a71df50 FB |
495 | index = channel->io_buf_no; |
496 | do { | |
497 | if (channel->iob[index].state == BUF_STATE_FREE) { | |
498 | channel->iob[index].state = BUF_STATE_LOCKED; | |
499 | channel->io_buf_no = (channel->io_buf_no + 1) % | |
500 | QETH_CMD_BUFFER_NO; | |
501 | memset(channel->iob[index].data, 0, QETH_BUFSIZE); | |
502 | return channel->iob + index; | |
503 | } | |
504 | index = (index + 1) % QETH_CMD_BUFFER_NO; | |
505 | } while (index != channel->io_buf_no); | |
506 | ||
507 | return NULL; | |
508 | } | |
509 | ||
510 | void qeth_release_buffer(struct qeth_channel *channel, | |
511 | struct qeth_cmd_buffer *iob) | |
512 | { | |
513 | unsigned long flags; | |
514 | ||
d11ba0c4 | 515 | QETH_DBF_TEXT(TRACE, 6, "relbuff"); |
4a71df50 FB |
516 | spin_lock_irqsave(&channel->iob_lock, flags); |
517 | memset(iob->data, 0, QETH_BUFSIZE); | |
518 | iob->state = BUF_STATE_FREE; | |
519 | iob->callback = qeth_send_control_data_cb; | |
520 | iob->rc = 0; | |
521 | spin_unlock_irqrestore(&channel->iob_lock, flags); | |
522 | } | |
523 | EXPORT_SYMBOL_GPL(qeth_release_buffer); | |
524 | ||
525 | static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel) | |
526 | { | |
527 | struct qeth_cmd_buffer *buffer = NULL; | |
528 | unsigned long flags; | |
529 | ||
530 | spin_lock_irqsave(&channel->iob_lock, flags); | |
531 | buffer = __qeth_get_buffer(channel); | |
532 | spin_unlock_irqrestore(&channel->iob_lock, flags); | |
533 | return buffer; | |
534 | } | |
535 | ||
536 | struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *channel) | |
537 | { | |
538 | struct qeth_cmd_buffer *buffer; | |
539 | wait_event(channel->wait_q, | |
540 | ((buffer = qeth_get_buffer(channel)) != NULL)); | |
541 | return buffer; | |
542 | } | |
543 | EXPORT_SYMBOL_GPL(qeth_wait_for_buffer); | |
544 | ||
545 | void qeth_clear_cmd_buffers(struct qeth_channel *channel) | |
546 | { | |
547 | int cnt; | |
548 | ||
549 | for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) | |
550 | qeth_release_buffer(channel, &channel->iob[cnt]); | |
551 | channel->buf_no = 0; | |
552 | channel->io_buf_no = 0; | |
553 | } | |
554 | EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers); | |
555 | ||
556 | static void qeth_send_control_data_cb(struct qeth_channel *channel, | |
557 | struct qeth_cmd_buffer *iob) | |
558 | { | |
559 | struct qeth_card *card; | |
560 | struct qeth_reply *reply, *r; | |
561 | struct qeth_ipa_cmd *cmd; | |
562 | unsigned long flags; | |
563 | int keep_reply; | |
564 | ||
d11ba0c4 | 565 | QETH_DBF_TEXT(TRACE, 4, "sndctlcb"); |
4a71df50 FB |
566 | |
567 | card = CARD_FROM_CDEV(channel->ccwdev); | |
568 | if (qeth_check_idx_response(iob->data)) { | |
569 | qeth_clear_ipacmd_list(card); | |
570 | qeth_schedule_recovery(card); | |
571 | goto out; | |
572 | } | |
573 | ||
574 | cmd = qeth_check_ipa_data(card, iob); | |
575 | if ((cmd == NULL) && (card->state != CARD_STATE_DOWN)) | |
576 | goto out; | |
577 | /*in case of OSN : check if cmd is set */ | |
578 | if (card->info.type == QETH_CARD_TYPE_OSN && | |
579 | cmd && | |
580 | cmd->hdr.command != IPA_CMD_STARTLAN && | |
581 | card->osn_info.assist_cb != NULL) { | |
582 | card->osn_info.assist_cb(card->dev, cmd); | |
583 | goto out; | |
584 | } | |
585 | ||
586 | spin_lock_irqsave(&card->lock, flags); | |
587 | list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) { | |
588 | if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) || | |
589 | ((cmd) && (reply->seqno == cmd->hdr.seqno))) { | |
590 | qeth_get_reply(reply); | |
591 | list_del_init(&reply->list); | |
592 | spin_unlock_irqrestore(&card->lock, flags); | |
593 | keep_reply = 0; | |
594 | if (reply->callback != NULL) { | |
595 | if (cmd) { | |
596 | reply->offset = (__u16)((char *)cmd - | |
597 | (char *)iob->data); | |
598 | keep_reply = reply->callback(card, | |
599 | reply, | |
600 | (unsigned long)cmd); | |
601 | } else | |
602 | keep_reply = reply->callback(card, | |
603 | reply, | |
604 | (unsigned long)iob); | |
605 | } | |
606 | if (cmd) | |
607 | reply->rc = (u16) cmd->hdr.return_code; | |
608 | else if (iob->rc) | |
609 | reply->rc = iob->rc; | |
610 | if (keep_reply) { | |
611 | spin_lock_irqsave(&card->lock, flags); | |
612 | list_add_tail(&reply->list, | |
613 | &card->cmd_waiter_list); | |
614 | spin_unlock_irqrestore(&card->lock, flags); | |
615 | } else { | |
616 | atomic_inc(&reply->received); | |
617 | wake_up(&reply->wait_q); | |
618 | } | |
619 | qeth_put_reply(reply); | |
620 | goto out; | |
621 | } | |
622 | } | |
623 | spin_unlock_irqrestore(&card->lock, flags); | |
624 | out: | |
625 | memcpy(&card->seqno.pdu_hdr_ack, | |
626 | QETH_PDU_HEADER_SEQ_NO(iob->data), | |
627 | QETH_SEQ_NO_LENGTH); | |
628 | qeth_release_buffer(channel, iob); | |
629 | } | |
630 | ||
631 | static int qeth_setup_channel(struct qeth_channel *channel) | |
632 | { | |
633 | int cnt; | |
634 | ||
d11ba0c4 | 635 | QETH_DBF_TEXT(SETUP, 2, "setupch"); |
4a71df50 FB |
636 | for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) { |
637 | channel->iob[cnt].data = (char *) | |
638 | kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL); | |
639 | if (channel->iob[cnt].data == NULL) | |
640 | break; | |
641 | channel->iob[cnt].state = BUF_STATE_FREE; | |
642 | channel->iob[cnt].channel = channel; | |
643 | channel->iob[cnt].callback = qeth_send_control_data_cb; | |
644 | channel->iob[cnt].rc = 0; | |
645 | } | |
646 | if (cnt < QETH_CMD_BUFFER_NO) { | |
647 | while (cnt-- > 0) | |
648 | kfree(channel->iob[cnt].data); | |
649 | return -ENOMEM; | |
650 | } | |
651 | channel->buf_no = 0; | |
652 | channel->io_buf_no = 0; | |
653 | atomic_set(&channel->irq_pending, 0); | |
654 | spin_lock_init(&channel->iob_lock); | |
655 | ||
656 | init_waitqueue_head(&channel->wait_q); | |
657 | return 0; | |
658 | } | |
659 | ||
660 | static int qeth_set_thread_start_bit(struct qeth_card *card, | |
661 | unsigned long thread) | |
662 | { | |
663 | unsigned long flags; | |
664 | ||
665 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
666 | if (!(card->thread_allowed_mask & thread) || | |
667 | (card->thread_start_mask & thread)) { | |
668 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
669 | return -EPERM; | |
670 | } | |
671 | card->thread_start_mask |= thread; | |
672 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
673 | return 0; | |
674 | } | |
675 | ||
676 | void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread) | |
677 | { | |
678 | unsigned long flags; | |
679 | ||
680 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
681 | card->thread_start_mask &= ~thread; | |
682 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
683 | wake_up(&card->wait_q); | |
684 | } | |
685 | EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit); | |
686 | ||
687 | void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread) | |
688 | { | |
689 | unsigned long flags; | |
690 | ||
691 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
692 | card->thread_running_mask &= ~thread; | |
693 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
694 | wake_up(&card->wait_q); | |
695 | } | |
696 | EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit); | |
697 | ||
698 | static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread) | |
699 | { | |
700 | unsigned long flags; | |
701 | int rc = 0; | |
702 | ||
703 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
704 | if (card->thread_start_mask & thread) { | |
705 | if ((card->thread_allowed_mask & thread) && | |
706 | !(card->thread_running_mask & thread)) { | |
707 | rc = 1; | |
708 | card->thread_start_mask &= ~thread; | |
709 | card->thread_running_mask |= thread; | |
710 | } else | |
711 | rc = -EPERM; | |
712 | } | |
713 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
714 | return rc; | |
715 | } | |
716 | ||
717 | int qeth_do_run_thread(struct qeth_card *card, unsigned long thread) | |
718 | { | |
719 | int rc = 0; | |
720 | ||
721 | wait_event(card->wait_q, | |
722 | (rc = __qeth_do_run_thread(card, thread)) >= 0); | |
723 | return rc; | |
724 | } | |
725 | EXPORT_SYMBOL_GPL(qeth_do_run_thread); | |
726 | ||
727 | void qeth_schedule_recovery(struct qeth_card *card) | |
728 | { | |
d11ba0c4 | 729 | QETH_DBF_TEXT(TRACE, 2, "startrec"); |
4a71df50 FB |
730 | if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0) |
731 | schedule_work(&card->kernel_thread_starter); | |
732 | } | |
733 | EXPORT_SYMBOL_GPL(qeth_schedule_recovery); | |
734 | ||
735 | static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb) | |
736 | { | |
737 | int dstat, cstat; | |
738 | char *sense; | |
739 | ||
740 | sense = (char *) irb->ecw; | |
741 | cstat = irb->scsw.cstat; | |
742 | dstat = irb->scsw.dstat; | |
743 | ||
744 | if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK | | |
745 | SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK | | |
746 | SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) { | |
d11ba0c4 | 747 | QETH_DBF_TEXT(TRACE, 2, "CGENCHK"); |
4a71df50 FB |
748 | PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ", |
749 | cdev->dev.bus_id, dstat, cstat); | |
750 | print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET, | |
751 | 16, 1, irb, 64, 1); | |
752 | return 1; | |
753 | } | |
754 | ||
755 | if (dstat & DEV_STAT_UNIT_CHECK) { | |
756 | if (sense[SENSE_RESETTING_EVENT_BYTE] & | |
757 | SENSE_RESETTING_EVENT_FLAG) { | |
d11ba0c4 | 758 | QETH_DBF_TEXT(TRACE, 2, "REVIND"); |
4a71df50 FB |
759 | return 1; |
760 | } | |
761 | if (sense[SENSE_COMMAND_REJECT_BYTE] & | |
762 | SENSE_COMMAND_REJECT_FLAG) { | |
d11ba0c4 | 763 | QETH_DBF_TEXT(TRACE, 2, "CMDREJi"); |
4a71df50 FB |
764 | return 0; |
765 | } | |
766 | if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) { | |
d11ba0c4 | 767 | QETH_DBF_TEXT(TRACE, 2, "AFFE"); |
4a71df50 FB |
768 | return 1; |
769 | } | |
770 | if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) { | |
d11ba0c4 | 771 | QETH_DBF_TEXT(TRACE, 2, "ZEROSEN"); |
4a71df50 FB |
772 | return 0; |
773 | } | |
d11ba0c4 | 774 | QETH_DBF_TEXT(TRACE, 2, "DGENCHK"); |
4a71df50 FB |
775 | return 1; |
776 | } | |
777 | return 0; | |
778 | } | |
779 | ||
780 | static long __qeth_check_irb_error(struct ccw_device *cdev, | |
781 | unsigned long intparm, struct irb *irb) | |
782 | { | |
783 | if (!IS_ERR(irb)) | |
784 | return 0; | |
785 | ||
786 | switch (PTR_ERR(irb)) { | |
787 | case -EIO: | |
788 | PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id); | |
d11ba0c4 PT |
789 | QETH_DBF_TEXT(TRACE, 2, "ckirberr"); |
790 | QETH_DBF_TEXT_(TRACE, 2, " rc%d", -EIO); | |
4a71df50 FB |
791 | break; |
792 | case -ETIMEDOUT: | |
793 | PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id); | |
d11ba0c4 PT |
794 | QETH_DBF_TEXT(TRACE, 2, "ckirberr"); |
795 | QETH_DBF_TEXT_(TRACE, 2, " rc%d", -ETIMEDOUT); | |
4a71df50 FB |
796 | if (intparm == QETH_RCD_PARM) { |
797 | struct qeth_card *card = CARD_FROM_CDEV(cdev); | |
798 | ||
799 | if (card && (card->data.ccwdev == cdev)) { | |
800 | card->data.state = CH_STATE_DOWN; | |
801 | wake_up(&card->wait_q); | |
802 | } | |
803 | } | |
804 | break; | |
805 | default: | |
806 | PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb), | |
807 | cdev->dev.bus_id); | |
d11ba0c4 PT |
808 | QETH_DBF_TEXT(TRACE, 2, "ckirberr"); |
809 | QETH_DBF_TEXT(TRACE, 2, " rc???"); | |
4a71df50 FB |
810 | } |
811 | return PTR_ERR(irb); | |
812 | } | |
813 | ||
814 | static void qeth_irq(struct ccw_device *cdev, unsigned long intparm, | |
815 | struct irb *irb) | |
816 | { | |
817 | int rc; | |
818 | int cstat, dstat; | |
819 | struct qeth_cmd_buffer *buffer; | |
820 | struct qeth_channel *channel; | |
821 | struct qeth_card *card; | |
822 | struct qeth_cmd_buffer *iob; | |
823 | __u8 index; | |
824 | ||
d11ba0c4 | 825 | QETH_DBF_TEXT(TRACE, 5, "irq"); |
4a71df50 FB |
826 | |
827 | if (__qeth_check_irb_error(cdev, intparm, irb)) | |
828 | return; | |
829 | cstat = irb->scsw.cstat; | |
830 | dstat = irb->scsw.dstat; | |
831 | ||
832 | card = CARD_FROM_CDEV(cdev); | |
833 | if (!card) | |
834 | return; | |
835 | ||
836 | if (card->read.ccwdev == cdev) { | |
837 | channel = &card->read; | |
d11ba0c4 | 838 | QETH_DBF_TEXT(TRACE, 5, "read"); |
4a71df50 FB |
839 | } else if (card->write.ccwdev == cdev) { |
840 | channel = &card->write; | |
d11ba0c4 | 841 | QETH_DBF_TEXT(TRACE, 5, "write"); |
4a71df50 FB |
842 | } else { |
843 | channel = &card->data; | |
d11ba0c4 | 844 | QETH_DBF_TEXT(TRACE, 5, "data"); |
4a71df50 FB |
845 | } |
846 | atomic_set(&channel->irq_pending, 0); | |
847 | ||
848 | if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC)) | |
849 | channel->state = CH_STATE_STOPPED; | |
850 | ||
851 | if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC)) | |
852 | channel->state = CH_STATE_HALTED; | |
853 | ||
854 | /*let's wake up immediately on data channel*/ | |
855 | if ((channel == &card->data) && (intparm != 0) && | |
856 | (intparm != QETH_RCD_PARM)) | |
857 | goto out; | |
858 | ||
859 | if (intparm == QETH_CLEAR_CHANNEL_PARM) { | |
d11ba0c4 | 860 | QETH_DBF_TEXT(TRACE, 6, "clrchpar"); |
4a71df50 FB |
861 | /* we don't have to handle this further */ |
862 | intparm = 0; | |
863 | } | |
864 | if (intparm == QETH_HALT_CHANNEL_PARM) { | |
d11ba0c4 | 865 | QETH_DBF_TEXT(TRACE, 6, "hltchpar"); |
4a71df50 FB |
866 | /* we don't have to handle this further */ |
867 | intparm = 0; | |
868 | } | |
869 | if ((dstat & DEV_STAT_UNIT_EXCEP) || | |
870 | (dstat & DEV_STAT_UNIT_CHECK) || | |
871 | (cstat)) { | |
872 | if (irb->esw.esw0.erw.cons) { | |
873 | /* TODO: we should make this s390dbf */ | |
874 | PRINT_WARN("sense data available on channel %s.\n", | |
875 | CHANNEL_ID(channel)); | |
876 | PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat); | |
877 | print_hex_dump(KERN_WARNING, "qeth: irb ", | |
878 | DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1); | |
879 | print_hex_dump(KERN_WARNING, "qeth: sense data ", | |
880 | DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1); | |
881 | } | |
882 | if (intparm == QETH_RCD_PARM) { | |
883 | channel->state = CH_STATE_DOWN; | |
884 | goto out; | |
885 | } | |
886 | rc = qeth_get_problem(cdev, irb); | |
887 | if (rc) { | |
888 | qeth_schedule_recovery(card); | |
889 | goto out; | |
890 | } | |
891 | } | |
892 | ||
893 | if (intparm == QETH_RCD_PARM) { | |
894 | channel->state = CH_STATE_RCD_DONE; | |
895 | goto out; | |
896 | } | |
897 | if (intparm) { | |
898 | buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm); | |
899 | buffer->state = BUF_STATE_PROCESSED; | |
900 | } | |
901 | if (channel == &card->data) | |
902 | return; | |
903 | if (channel == &card->read && | |
904 | channel->state == CH_STATE_UP) | |
905 | qeth_issue_next_read(card); | |
906 | ||
907 | iob = channel->iob; | |
908 | index = channel->buf_no; | |
909 | while (iob[index].state == BUF_STATE_PROCESSED) { | |
910 | if (iob[index].callback != NULL) | |
911 | iob[index].callback(channel, iob + index); | |
912 | ||
913 | index = (index + 1) % QETH_CMD_BUFFER_NO; | |
914 | } | |
915 | channel->buf_no = index; | |
916 | out: | |
917 | wake_up(&card->wait_q); | |
918 | return; | |
919 | } | |
920 | ||
921 | static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, | |
922 | struct qeth_qdio_out_buffer *buf) | |
923 | { | |
924 | int i; | |
925 | struct sk_buff *skb; | |
926 | ||
927 | /* is PCI flag set on buffer? */ | |
928 | if (buf->buffer->element[0].flags & 0x40) | |
929 | atomic_dec(&queue->set_pci_flags_count); | |
930 | ||
931 | skb = skb_dequeue(&buf->skb_list); | |
932 | while (skb) { | |
933 | atomic_dec(&skb->users); | |
934 | dev_kfree_skb_any(skb); | |
935 | skb = skb_dequeue(&buf->skb_list); | |
936 | } | |
937 | qeth_eddp_buf_release_contexts(buf); | |
938 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) { | |
939 | buf->buffer->element[i].length = 0; | |
940 | buf->buffer->element[i].addr = NULL; | |
941 | buf->buffer->element[i].flags = 0; | |
942 | } | |
943 | buf->next_element_to_fill = 0; | |
944 | atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY); | |
945 | } | |
946 | ||
947 | void qeth_clear_qdio_buffers(struct qeth_card *card) | |
948 | { | |
949 | int i, j; | |
950 | ||
d11ba0c4 | 951 | QETH_DBF_TEXT(TRACE, 2, "clearqdbf"); |
4a71df50 FB |
952 | /* clear outbound buffers to free skbs */ |
953 | for (i = 0; i < card->qdio.no_out_queues; ++i) | |
954 | if (card->qdio.out_qs[i]) { | |
955 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) | |
956 | qeth_clear_output_buffer(card->qdio.out_qs[i], | |
957 | &card->qdio.out_qs[i]->bufs[j]); | |
958 | } | |
959 | } | |
960 | EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers); | |
961 | ||
962 | static void qeth_free_buffer_pool(struct qeth_card *card) | |
963 | { | |
964 | struct qeth_buffer_pool_entry *pool_entry, *tmp; | |
965 | int i = 0; | |
d11ba0c4 | 966 | QETH_DBF_TEXT(TRACE, 5, "freepool"); |
4a71df50 FB |
967 | list_for_each_entry_safe(pool_entry, tmp, |
968 | &card->qdio.init_pool.entry_list, init_list){ | |
969 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) | |
970 | free_page((unsigned long)pool_entry->elements[i]); | |
971 | list_del(&pool_entry->init_list); | |
972 | kfree(pool_entry); | |
973 | } | |
974 | } | |
975 | ||
976 | static void qeth_free_qdio_buffers(struct qeth_card *card) | |
977 | { | |
978 | int i, j; | |
979 | ||
d11ba0c4 | 980 | QETH_DBF_TEXT(TRACE, 2, "freeqdbf"); |
4a71df50 FB |
981 | if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) == |
982 | QETH_QDIO_UNINITIALIZED) | |
983 | return; | |
984 | kfree(card->qdio.in_q); | |
985 | card->qdio.in_q = NULL; | |
986 | /* inbound buffer pool */ | |
987 | qeth_free_buffer_pool(card); | |
988 | /* free outbound qdio_qs */ | |
989 | if (card->qdio.out_qs) { | |
990 | for (i = 0; i < card->qdio.no_out_queues; ++i) { | |
991 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) | |
992 | qeth_clear_output_buffer(card->qdio.out_qs[i], | |
993 | &card->qdio.out_qs[i]->bufs[j]); | |
994 | kfree(card->qdio.out_qs[i]); | |
995 | } | |
996 | kfree(card->qdio.out_qs); | |
997 | card->qdio.out_qs = NULL; | |
998 | } | |
999 | } | |
1000 | ||
1001 | static void qeth_clean_channel(struct qeth_channel *channel) | |
1002 | { | |
1003 | int cnt; | |
1004 | ||
d11ba0c4 | 1005 | QETH_DBF_TEXT(SETUP, 2, "freech"); |
4a71df50 FB |
1006 | for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) |
1007 | kfree(channel->iob[cnt].data); | |
1008 | } | |
1009 | ||
1010 | static int qeth_is_1920_device(struct qeth_card *card) | |
1011 | { | |
1012 | int single_queue = 0; | |
1013 | struct ccw_device *ccwdev; | |
1014 | struct channelPath_dsc { | |
1015 | u8 flags; | |
1016 | u8 lsn; | |
1017 | u8 desc; | |
1018 | u8 chpid; | |
1019 | u8 swla; | |
1020 | u8 zeroes; | |
1021 | u8 chla; | |
1022 | u8 chpp; | |
1023 | } *chp_dsc; | |
1024 | ||
d11ba0c4 | 1025 | QETH_DBF_TEXT(SETUP, 2, "chk_1920"); |
4a71df50 FB |
1026 | |
1027 | ccwdev = card->data.ccwdev; | |
1028 | chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0); | |
1029 | if (chp_dsc != NULL) { | |
1030 | /* CHPP field bit 6 == 1 -> single queue */ | |
1031 | single_queue = ((chp_dsc->chpp & 0x02) == 0x02); | |
1032 | kfree(chp_dsc); | |
1033 | } | |
d11ba0c4 | 1034 | QETH_DBF_TEXT_(SETUP, 2, "rc:%x", single_queue); |
4a71df50 FB |
1035 | return single_queue; |
1036 | } | |
1037 | ||
1038 | static void qeth_init_qdio_info(struct qeth_card *card) | |
1039 | { | |
d11ba0c4 | 1040 | QETH_DBF_TEXT(SETUP, 4, "intqdinf"); |
4a71df50 FB |
1041 | atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); |
1042 | /* inbound */ | |
1043 | card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT; | |
1044 | card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT; | |
1045 | card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count; | |
1046 | INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list); | |
1047 | INIT_LIST_HEAD(&card->qdio.init_pool.entry_list); | |
1048 | } | |
1049 | ||
1050 | static void qeth_set_intial_options(struct qeth_card *card) | |
1051 | { | |
1052 | card->options.route4.type = NO_ROUTER; | |
1053 | card->options.route6.type = NO_ROUTER; | |
1054 | card->options.checksum_type = QETH_CHECKSUM_DEFAULT; | |
1055 | card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS; | |
1056 | card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL; | |
1057 | card->options.fake_broadcast = 0; | |
1058 | card->options.add_hhlen = DEFAULT_ADD_HHLEN; | |
1059 | card->options.fake_ll = 0; | |
1060 | card->options.performance_stats = 0; | |
1061 | card->options.rx_sg_cb = QETH_RX_SG_CB; | |
1062 | } | |
1063 | ||
1064 | static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread) | |
1065 | { | |
1066 | unsigned long flags; | |
1067 | int rc = 0; | |
1068 | ||
1069 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
d11ba0c4 | 1070 | QETH_DBF_TEXT_(TRACE, 4, " %02x%02x%02x", |
4a71df50 FB |
1071 | (u8) card->thread_start_mask, |
1072 | (u8) card->thread_allowed_mask, | |
1073 | (u8) card->thread_running_mask); | |
1074 | rc = (card->thread_start_mask & thread); | |
1075 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
1076 | return rc; | |
1077 | } | |
1078 | ||
1079 | static void qeth_start_kernel_thread(struct work_struct *work) | |
1080 | { | |
1081 | struct qeth_card *card = container_of(work, struct qeth_card, | |
1082 | kernel_thread_starter); | |
d11ba0c4 | 1083 | QETH_DBF_TEXT(TRACE , 2, "strthrd"); |
4a71df50 FB |
1084 | |
1085 | if (card->read.state != CH_STATE_UP && | |
1086 | card->write.state != CH_STATE_UP) | |
1087 | return; | |
1088 | if (qeth_do_start_thread(card, QETH_RECOVER_THREAD)) | |
1089 | kthread_run(card->discipline.recover, (void *) card, | |
1090 | "qeth_recover"); | |
1091 | } | |
1092 | ||
1093 | static int qeth_setup_card(struct qeth_card *card) | |
1094 | { | |
1095 | ||
d11ba0c4 PT |
1096 | QETH_DBF_TEXT(SETUP, 2, "setupcrd"); |
1097 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 FB |
1098 | |
1099 | card->read.state = CH_STATE_DOWN; | |
1100 | card->write.state = CH_STATE_DOWN; | |
1101 | card->data.state = CH_STATE_DOWN; | |
1102 | card->state = CARD_STATE_DOWN; | |
1103 | card->lan_online = 0; | |
1104 | card->use_hard_stop = 0; | |
1105 | card->dev = NULL; | |
1106 | spin_lock_init(&card->vlanlock); | |
1107 | spin_lock_init(&card->mclock); | |
1108 | card->vlangrp = NULL; | |
1109 | spin_lock_init(&card->lock); | |
1110 | spin_lock_init(&card->ip_lock); | |
1111 | spin_lock_init(&card->thread_mask_lock); | |
1112 | card->thread_start_mask = 0; | |
1113 | card->thread_allowed_mask = 0; | |
1114 | card->thread_running_mask = 0; | |
1115 | INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread); | |
1116 | INIT_LIST_HEAD(&card->ip_list); | |
1117 | card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL); | |
1118 | if (!card->ip_tbd_list) { | |
d11ba0c4 | 1119 | QETH_DBF_TEXT(SETUP, 0, "iptbdnom"); |
4a71df50 FB |
1120 | return -ENOMEM; |
1121 | } | |
1122 | INIT_LIST_HEAD(card->ip_tbd_list); | |
1123 | INIT_LIST_HEAD(&card->cmd_waiter_list); | |
1124 | init_waitqueue_head(&card->wait_q); | |
1125 | /* intial options */ | |
1126 | qeth_set_intial_options(card); | |
1127 | /* IP address takeover */ | |
1128 | INIT_LIST_HEAD(&card->ipato.entries); | |
1129 | card->ipato.enabled = 0; | |
1130 | card->ipato.invert4 = 0; | |
1131 | card->ipato.invert6 = 0; | |
1132 | /* init QDIO stuff */ | |
1133 | qeth_init_qdio_info(card); | |
1134 | return 0; | |
1135 | } | |
1136 | ||
1137 | static struct qeth_card *qeth_alloc_card(void) | |
1138 | { | |
1139 | struct qeth_card *card; | |
1140 | ||
d11ba0c4 | 1141 | QETH_DBF_TEXT(SETUP, 2, "alloccrd"); |
4a71df50 FB |
1142 | card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL); |
1143 | if (!card) | |
1144 | return NULL; | |
d11ba0c4 | 1145 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); |
4a71df50 FB |
1146 | if (qeth_setup_channel(&card->read)) { |
1147 | kfree(card); | |
1148 | return NULL; | |
1149 | } | |
1150 | if (qeth_setup_channel(&card->write)) { | |
1151 | qeth_clean_channel(&card->read); | |
1152 | kfree(card); | |
1153 | return NULL; | |
1154 | } | |
1155 | card->options.layer2 = -1; | |
1156 | return card; | |
1157 | } | |
1158 | ||
1159 | static int qeth_determine_card_type(struct qeth_card *card) | |
1160 | { | |
1161 | int i = 0; | |
1162 | ||
d11ba0c4 | 1163 | QETH_DBF_TEXT(SETUP, 2, "detcdtyp"); |
4a71df50 FB |
1164 | |
1165 | card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT; | |
1166 | card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; | |
1167 | while (known_devices[i][4]) { | |
1168 | if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) && | |
1169 | (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) { | |
1170 | card->info.type = known_devices[i][4]; | |
1171 | card->qdio.no_out_queues = known_devices[i][8]; | |
1172 | card->info.is_multicast_different = known_devices[i][9]; | |
1173 | if (qeth_is_1920_device(card)) { | |
1174 | PRINT_INFO("Priority Queueing not able " | |
1175 | "due to hardware limitations!\n"); | |
1176 | card->qdio.no_out_queues = 1; | |
1177 | card->qdio.default_out_queue = 0; | |
1178 | } | |
1179 | return 0; | |
1180 | } | |
1181 | i++; | |
1182 | } | |
1183 | card->info.type = QETH_CARD_TYPE_UNKNOWN; | |
1184 | PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card)); | |
1185 | return -ENOENT; | |
1186 | } | |
1187 | ||
1188 | static int qeth_clear_channel(struct qeth_channel *channel) | |
1189 | { | |
1190 | unsigned long flags; | |
1191 | struct qeth_card *card; | |
1192 | int rc; | |
1193 | ||
d11ba0c4 | 1194 | QETH_DBF_TEXT(TRACE, 3, "clearch"); |
4a71df50 FB |
1195 | card = CARD_FROM_CDEV(channel->ccwdev); |
1196 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); | |
1197 | rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM); | |
1198 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); | |
1199 | ||
1200 | if (rc) | |
1201 | return rc; | |
1202 | rc = wait_event_interruptible_timeout(card->wait_q, | |
1203 | channel->state == CH_STATE_STOPPED, QETH_TIMEOUT); | |
1204 | if (rc == -ERESTARTSYS) | |
1205 | return rc; | |
1206 | if (channel->state != CH_STATE_STOPPED) | |
1207 | return -ETIME; | |
1208 | channel->state = CH_STATE_DOWN; | |
1209 | return 0; | |
1210 | } | |
1211 | ||
1212 | static int qeth_halt_channel(struct qeth_channel *channel) | |
1213 | { | |
1214 | unsigned long flags; | |
1215 | struct qeth_card *card; | |
1216 | int rc; | |
1217 | ||
d11ba0c4 | 1218 | QETH_DBF_TEXT(TRACE, 3, "haltch"); |
4a71df50 FB |
1219 | card = CARD_FROM_CDEV(channel->ccwdev); |
1220 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); | |
1221 | rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM); | |
1222 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); | |
1223 | ||
1224 | if (rc) | |
1225 | return rc; | |
1226 | rc = wait_event_interruptible_timeout(card->wait_q, | |
1227 | channel->state == CH_STATE_HALTED, QETH_TIMEOUT); | |
1228 | if (rc == -ERESTARTSYS) | |
1229 | return rc; | |
1230 | if (channel->state != CH_STATE_HALTED) | |
1231 | return -ETIME; | |
1232 | return 0; | |
1233 | } | |
1234 | ||
1235 | static int qeth_halt_channels(struct qeth_card *card) | |
1236 | { | |
1237 | int rc1 = 0, rc2 = 0, rc3 = 0; | |
1238 | ||
d11ba0c4 | 1239 | QETH_DBF_TEXT(TRACE, 3, "haltchs"); |
4a71df50 FB |
1240 | rc1 = qeth_halt_channel(&card->read); |
1241 | rc2 = qeth_halt_channel(&card->write); | |
1242 | rc3 = qeth_halt_channel(&card->data); | |
1243 | if (rc1) | |
1244 | return rc1; | |
1245 | if (rc2) | |
1246 | return rc2; | |
1247 | return rc3; | |
1248 | } | |
1249 | ||
1250 | static int qeth_clear_channels(struct qeth_card *card) | |
1251 | { | |
1252 | int rc1 = 0, rc2 = 0, rc3 = 0; | |
1253 | ||
d11ba0c4 | 1254 | QETH_DBF_TEXT(TRACE, 3, "clearchs"); |
4a71df50 FB |
1255 | rc1 = qeth_clear_channel(&card->read); |
1256 | rc2 = qeth_clear_channel(&card->write); | |
1257 | rc3 = qeth_clear_channel(&card->data); | |
1258 | if (rc1) | |
1259 | return rc1; | |
1260 | if (rc2) | |
1261 | return rc2; | |
1262 | return rc3; | |
1263 | } | |
1264 | ||
1265 | static int qeth_clear_halt_card(struct qeth_card *card, int halt) | |
1266 | { | |
1267 | int rc = 0; | |
1268 | ||
d11ba0c4 PT |
1269 | QETH_DBF_TEXT(TRACE, 3, "clhacrd"); |
1270 | QETH_DBF_HEX(TRACE, 3, &card, sizeof(void *)); | |
4a71df50 FB |
1271 | |
1272 | if (halt) | |
1273 | rc = qeth_halt_channels(card); | |
1274 | if (rc) | |
1275 | return rc; | |
1276 | return qeth_clear_channels(card); | |
1277 | } | |
1278 | ||
1279 | int qeth_qdio_clear_card(struct qeth_card *card, int use_halt) | |
1280 | { | |
1281 | int rc = 0; | |
1282 | ||
d11ba0c4 | 1283 | QETH_DBF_TEXT(TRACE, 3, "qdioclr"); |
4a71df50 FB |
1284 | switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED, |
1285 | QETH_QDIO_CLEANING)) { | |
1286 | case QETH_QDIO_ESTABLISHED: | |
1287 | if (card->info.type == QETH_CARD_TYPE_IQD) | |
1288 | rc = qdio_cleanup(CARD_DDEV(card), | |
1289 | QDIO_FLAG_CLEANUP_USING_HALT); | |
1290 | else | |
1291 | rc = qdio_cleanup(CARD_DDEV(card), | |
1292 | QDIO_FLAG_CLEANUP_USING_CLEAR); | |
1293 | if (rc) | |
d11ba0c4 | 1294 | QETH_DBF_TEXT_(TRACE, 3, "1err%d", rc); |
4a71df50 FB |
1295 | atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); |
1296 | break; | |
1297 | case QETH_QDIO_CLEANING: | |
1298 | return rc; | |
1299 | default: | |
1300 | break; | |
1301 | } | |
1302 | rc = qeth_clear_halt_card(card, use_halt); | |
1303 | if (rc) | |
d11ba0c4 | 1304 | QETH_DBF_TEXT_(TRACE, 3, "2err%d", rc); |
4a71df50 FB |
1305 | card->state = CARD_STATE_DOWN; |
1306 | return rc; | |
1307 | } | |
1308 | EXPORT_SYMBOL_GPL(qeth_qdio_clear_card); | |
1309 | ||
1310 | static int qeth_read_conf_data(struct qeth_card *card, void **buffer, | |
1311 | int *length) | |
1312 | { | |
1313 | struct ciw *ciw; | |
1314 | char *rcd_buf; | |
1315 | int ret; | |
1316 | struct qeth_channel *channel = &card->data; | |
1317 | unsigned long flags; | |
1318 | ||
1319 | /* | |
1320 | * scan for RCD command in extended SenseID data | |
1321 | */ | |
1322 | ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD); | |
1323 | if (!ciw || ciw->cmd == 0) | |
1324 | return -EOPNOTSUPP; | |
1325 | rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA); | |
1326 | if (!rcd_buf) | |
1327 | return -ENOMEM; | |
1328 | ||
1329 | channel->ccw.cmd_code = ciw->cmd; | |
1330 | channel->ccw.cda = (__u32) __pa(rcd_buf); | |
1331 | channel->ccw.count = ciw->count; | |
1332 | channel->ccw.flags = CCW_FLAG_SLI; | |
1333 | channel->state = CH_STATE_RCD; | |
1334 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); | |
1335 | ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw, | |
1336 | QETH_RCD_PARM, LPM_ANYPATH, 0, | |
1337 | QETH_RCD_TIMEOUT); | |
1338 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); | |
1339 | if (!ret) | |
1340 | wait_event(card->wait_q, | |
1341 | (channel->state == CH_STATE_RCD_DONE || | |
1342 | channel->state == CH_STATE_DOWN)); | |
1343 | if (channel->state == CH_STATE_DOWN) | |
1344 | ret = -EIO; | |
1345 | else | |
1346 | channel->state = CH_STATE_DOWN; | |
1347 | if (ret) { | |
1348 | kfree(rcd_buf); | |
1349 | *buffer = NULL; | |
1350 | *length = 0; | |
1351 | } else { | |
1352 | *length = ciw->count; | |
1353 | *buffer = rcd_buf; | |
1354 | } | |
1355 | return ret; | |
1356 | } | |
1357 | ||
1358 | static int qeth_get_unitaddr(struct qeth_card *card) | |
1359 | { | |
1360 | int length; | |
1361 | char *prcd; | |
1362 | int rc; | |
1363 | ||
d11ba0c4 | 1364 | QETH_DBF_TEXT(SETUP, 2, "getunit"); |
4a71df50 FB |
1365 | rc = qeth_read_conf_data(card, (void **) &prcd, &length); |
1366 | if (rc) { | |
1367 | PRINT_ERR("qeth_read_conf_data for device %s returned %i\n", | |
1368 | CARD_DDEV_ID(card), rc); | |
1369 | return rc; | |
1370 | } | |
1371 | card->info.chpid = prcd[30]; | |
1372 | card->info.unit_addr2 = prcd[31]; | |
1373 | card->info.cula = prcd[63]; | |
1374 | card->info.guestlan = ((prcd[0x10] == _ascebc['V']) && | |
1375 | (prcd[0x11] == _ascebc['M'])); | |
1376 | kfree(prcd); | |
1377 | return 0; | |
1378 | } | |
1379 | ||
1380 | static void qeth_init_tokens(struct qeth_card *card) | |
1381 | { | |
1382 | card->token.issuer_rm_w = 0x00010103UL; | |
1383 | card->token.cm_filter_w = 0x00010108UL; | |
1384 | card->token.cm_connection_w = 0x0001010aUL; | |
1385 | card->token.ulp_filter_w = 0x0001010bUL; | |
1386 | card->token.ulp_connection_w = 0x0001010dUL; | |
1387 | } | |
1388 | ||
1389 | static void qeth_init_func_level(struct qeth_card *card) | |
1390 | { | |
1391 | if (card->ipato.enabled) { | |
1392 | if (card->info.type == QETH_CARD_TYPE_IQD) | |
1393 | card->info.func_level = | |
1394 | QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT; | |
1395 | else | |
1396 | card->info.func_level = | |
1397 | QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT; | |
1398 | } else { | |
1399 | if (card->info.type == QETH_CARD_TYPE_IQD) | |
1400 | /*FIXME:why do we have same values for dis and ena for | |
1401 | osae??? */ | |
1402 | card->info.func_level = | |
1403 | QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT; | |
1404 | else | |
1405 | card->info.func_level = | |
1406 | QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT; | |
1407 | } | |
1408 | } | |
1409 | ||
1410 | static inline __u16 qeth_raw_devno_from_bus_id(char *id) | |
1411 | { | |
1412 | id += (strlen(id) - 4); | |
1413 | return (__u16) simple_strtoul(id, &id, 16); | |
1414 | } | |
1415 | ||
1416 | static int qeth_idx_activate_get_answer(struct qeth_channel *channel, | |
1417 | void (*idx_reply_cb)(struct qeth_channel *, | |
1418 | struct qeth_cmd_buffer *)) | |
1419 | { | |
1420 | struct qeth_cmd_buffer *iob; | |
1421 | unsigned long flags; | |
1422 | int rc; | |
1423 | struct qeth_card *card; | |
1424 | ||
d11ba0c4 | 1425 | QETH_DBF_TEXT(SETUP, 2, "idxanswr"); |
4a71df50 FB |
1426 | card = CARD_FROM_CDEV(channel->ccwdev); |
1427 | iob = qeth_get_buffer(channel); | |
1428 | iob->callback = idx_reply_cb; | |
1429 | memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1)); | |
1430 | channel->ccw.count = QETH_BUFSIZE; | |
1431 | channel->ccw.cda = (__u32) __pa(iob->data); | |
1432 | ||
1433 | wait_event(card->wait_q, | |
1434 | atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); | |
d11ba0c4 | 1435 | QETH_DBF_TEXT(SETUP, 6, "noirqpnd"); |
4a71df50 FB |
1436 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
1437 | rc = ccw_device_start(channel->ccwdev, | |
1438 | &channel->ccw, (addr_t) iob, 0, 0); | |
1439 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); | |
1440 | ||
1441 | if (rc) { | |
1442 | PRINT_ERR("Error2 in activating channel rc=%d\n", rc); | |
d11ba0c4 | 1443 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
4a71df50 FB |
1444 | atomic_set(&channel->irq_pending, 0); |
1445 | wake_up(&card->wait_q); | |
1446 | return rc; | |
1447 | } | |
1448 | rc = wait_event_interruptible_timeout(card->wait_q, | |
1449 | channel->state == CH_STATE_UP, QETH_TIMEOUT); | |
1450 | if (rc == -ERESTARTSYS) | |
1451 | return rc; | |
1452 | if (channel->state != CH_STATE_UP) { | |
1453 | rc = -ETIME; | |
d11ba0c4 | 1454 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
4a71df50 FB |
1455 | qeth_clear_cmd_buffers(channel); |
1456 | } else | |
1457 | rc = 0; | |
1458 | return rc; | |
1459 | } | |
1460 | ||
1461 | static int qeth_idx_activate_channel(struct qeth_channel *channel, | |
1462 | void (*idx_reply_cb)(struct qeth_channel *, | |
1463 | struct qeth_cmd_buffer *)) | |
1464 | { | |
1465 | struct qeth_card *card; | |
1466 | struct qeth_cmd_buffer *iob; | |
1467 | unsigned long flags; | |
1468 | __u16 temp; | |
1469 | __u8 tmp; | |
1470 | int rc; | |
1471 | ||
1472 | card = CARD_FROM_CDEV(channel->ccwdev); | |
1473 | ||
d11ba0c4 | 1474 | QETH_DBF_TEXT(SETUP, 2, "idxactch"); |
4a71df50 FB |
1475 | |
1476 | iob = qeth_get_buffer(channel); | |
1477 | iob->callback = idx_reply_cb; | |
1478 | memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1)); | |
1479 | channel->ccw.count = IDX_ACTIVATE_SIZE; | |
1480 | channel->ccw.cda = (__u32) __pa(iob->data); | |
1481 | if (channel == &card->write) { | |
1482 | memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE); | |
1483 | memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), | |
1484 | &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); | |
1485 | card->seqno.trans_hdr++; | |
1486 | } else { | |
1487 | memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE); | |
1488 | memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), | |
1489 | &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); | |
1490 | } | |
1491 | tmp = ((__u8)card->info.portno) | 0x80; | |
1492 | memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1); | |
1493 | memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), | |
1494 | &card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH); | |
1495 | memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data), | |
1496 | &card->info.func_level, sizeof(__u16)); | |
1497 | temp = qeth_raw_devno_from_bus_id(CARD_DDEV_ID(card)); | |
1498 | memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2); | |
1499 | temp = (card->info.cula << 8) + card->info.unit_addr2; | |
1500 | memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2); | |
1501 | ||
1502 | wait_event(card->wait_q, | |
1503 | atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); | |
d11ba0c4 | 1504 | QETH_DBF_TEXT(SETUP, 6, "noirqpnd"); |
4a71df50 FB |
1505 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
1506 | rc = ccw_device_start(channel->ccwdev, | |
1507 | &channel->ccw, (addr_t) iob, 0, 0); | |
1508 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); | |
1509 | ||
1510 | if (rc) { | |
1511 | PRINT_ERR("Error1 in activating channel. rc=%d\n", rc); | |
d11ba0c4 | 1512 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
1513 | atomic_set(&channel->irq_pending, 0); |
1514 | wake_up(&card->wait_q); | |
1515 | return rc; | |
1516 | } | |
1517 | rc = wait_event_interruptible_timeout(card->wait_q, | |
1518 | channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT); | |
1519 | if (rc == -ERESTARTSYS) | |
1520 | return rc; | |
1521 | if (channel->state != CH_STATE_ACTIVATING) { | |
1522 | PRINT_WARN("IDX activate timed out!\n"); | |
d11ba0c4 | 1523 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME); |
4a71df50 FB |
1524 | qeth_clear_cmd_buffers(channel); |
1525 | return -ETIME; | |
1526 | } | |
1527 | return qeth_idx_activate_get_answer(channel, idx_reply_cb); | |
1528 | } | |
1529 | ||
1530 | static int qeth_peer_func_level(int level) | |
1531 | { | |
1532 | if ((level & 0xff) == 8) | |
1533 | return (level & 0xff) + 0x400; | |
1534 | if (((level >> 8) & 3) == 1) | |
1535 | return (level & 0xff) + 0x200; | |
1536 | return level; | |
1537 | } | |
1538 | ||
1539 | static void qeth_idx_write_cb(struct qeth_channel *channel, | |
1540 | struct qeth_cmd_buffer *iob) | |
1541 | { | |
1542 | struct qeth_card *card; | |
1543 | __u16 temp; | |
1544 | ||
d11ba0c4 | 1545 | QETH_DBF_TEXT(SETUP , 2, "idxwrcb"); |
4a71df50 FB |
1546 | |
1547 | if (channel->state == CH_STATE_DOWN) { | |
1548 | channel->state = CH_STATE_ACTIVATING; | |
1549 | goto out; | |
1550 | } | |
1551 | card = CARD_FROM_CDEV(channel->ccwdev); | |
1552 | ||
1553 | if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { | |
1554 | if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19) | |
1555 | PRINT_ERR("IDX_ACTIVATE on write channel device %s: " | |
1556 | "adapter exclusively used by another host\n", | |
1557 | CARD_WDEV_ID(card)); | |
1558 | else | |
1559 | PRINT_ERR("IDX_ACTIVATE on write channel device %s: " | |
1560 | "negative reply\n", CARD_WDEV_ID(card)); | |
1561 | goto out; | |
1562 | } | |
1563 | memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); | |
1564 | if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) { | |
1565 | PRINT_WARN("IDX_ACTIVATE on write channel device %s: " | |
1566 | "function level mismatch " | |
1567 | "(sent: 0x%x, received: 0x%x)\n", | |
1568 | CARD_WDEV_ID(card), card->info.func_level, temp); | |
1569 | goto out; | |
1570 | } | |
1571 | channel->state = CH_STATE_UP; | |
1572 | out: | |
1573 | qeth_release_buffer(channel, iob); | |
1574 | } | |
1575 | ||
1576 | static void qeth_idx_read_cb(struct qeth_channel *channel, | |
1577 | struct qeth_cmd_buffer *iob) | |
1578 | { | |
1579 | struct qeth_card *card; | |
1580 | __u16 temp; | |
1581 | ||
d11ba0c4 | 1582 | QETH_DBF_TEXT(SETUP , 2, "idxrdcb"); |
4a71df50 FB |
1583 | if (channel->state == CH_STATE_DOWN) { |
1584 | channel->state = CH_STATE_ACTIVATING; | |
1585 | goto out; | |
1586 | } | |
1587 | ||
1588 | card = CARD_FROM_CDEV(channel->ccwdev); | |
1589 | if (qeth_check_idx_response(iob->data)) | |
1590 | goto out; | |
1591 | ||
1592 | if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { | |
1593 | if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19) | |
1594 | PRINT_ERR("IDX_ACTIVATE on read channel device %s: " | |
1595 | "adapter exclusively used by another host\n", | |
1596 | CARD_RDEV_ID(card)); | |
1597 | else | |
1598 | PRINT_ERR("IDX_ACTIVATE on read channel device %s: " | |
1599 | "negative reply\n", CARD_RDEV_ID(card)); | |
1600 | goto out; | |
1601 | } | |
1602 | ||
1603 | /** | |
1604 | * temporary fix for microcode bug | |
1605 | * to revert it,replace OR by AND | |
1606 | */ | |
1607 | if ((!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) || | |
1608 | (card->info.type == QETH_CARD_TYPE_OSAE)) | |
1609 | card->info.portname_required = 1; | |
1610 | ||
1611 | memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); | |
1612 | if (temp != qeth_peer_func_level(card->info.func_level)) { | |
1613 | PRINT_WARN("IDX_ACTIVATE on read channel device %s: function " | |
1614 | "level mismatch (sent: 0x%x, received: 0x%x)\n", | |
1615 | CARD_RDEV_ID(card), card->info.func_level, temp); | |
1616 | goto out; | |
1617 | } | |
1618 | memcpy(&card->token.issuer_rm_r, | |
1619 | QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), | |
1620 | QETH_MPC_TOKEN_LENGTH); | |
1621 | memcpy(&card->info.mcl_level[0], | |
1622 | QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH); | |
1623 | channel->state = CH_STATE_UP; | |
1624 | out: | |
1625 | qeth_release_buffer(channel, iob); | |
1626 | } | |
1627 | ||
1628 | void qeth_prepare_control_data(struct qeth_card *card, int len, | |
1629 | struct qeth_cmd_buffer *iob) | |
1630 | { | |
1631 | qeth_setup_ccw(&card->write, iob->data, len); | |
1632 | iob->callback = qeth_release_buffer; | |
1633 | ||
1634 | memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), | |
1635 | &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); | |
1636 | card->seqno.trans_hdr++; | |
1637 | memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data), | |
1638 | &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH); | |
1639 | card->seqno.pdu_hdr++; | |
1640 | memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data), | |
1641 | &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH); | |
d11ba0c4 | 1642 | QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN); |
4a71df50 FB |
1643 | } |
1644 | EXPORT_SYMBOL_GPL(qeth_prepare_control_data); | |
1645 | ||
1646 | int qeth_send_control_data(struct qeth_card *card, int len, | |
1647 | struct qeth_cmd_buffer *iob, | |
1648 | int (*reply_cb)(struct qeth_card *, struct qeth_reply *, | |
1649 | unsigned long), | |
1650 | void *reply_param) | |
1651 | { | |
1652 | int rc; | |
1653 | unsigned long flags; | |
1654 | struct qeth_reply *reply = NULL; | |
1655 | unsigned long timeout; | |
1656 | ||
d11ba0c4 | 1657 | QETH_DBF_TEXT(TRACE, 2, "sendctl"); |
4a71df50 FB |
1658 | |
1659 | reply = qeth_alloc_reply(card); | |
1660 | if (!reply) { | |
d11ba0c4 | 1661 | PRINT_WARN("Could not alloc qeth_reply!\n"); |
4a71df50 FB |
1662 | return -ENOMEM; |
1663 | } | |
1664 | reply->callback = reply_cb; | |
1665 | reply->param = reply_param; | |
1666 | if (card->state == CARD_STATE_DOWN) | |
1667 | reply->seqno = QETH_IDX_COMMAND_SEQNO; | |
1668 | else | |
1669 | reply->seqno = card->seqno.ipa++; | |
1670 | init_waitqueue_head(&reply->wait_q); | |
1671 | spin_lock_irqsave(&card->lock, flags); | |
1672 | list_add_tail(&reply->list, &card->cmd_waiter_list); | |
1673 | spin_unlock_irqrestore(&card->lock, flags); | |
d11ba0c4 | 1674 | QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN); |
4a71df50 FB |
1675 | |
1676 | while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ; | |
1677 | qeth_prepare_control_data(card, len, iob); | |
1678 | ||
1679 | if (IS_IPA(iob->data)) | |
1680 | timeout = jiffies + QETH_IPA_TIMEOUT; | |
1681 | else | |
1682 | timeout = jiffies + QETH_TIMEOUT; | |
1683 | ||
d11ba0c4 | 1684 | QETH_DBF_TEXT(TRACE, 6, "noirqpnd"); |
4a71df50 FB |
1685 | spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); |
1686 | rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, | |
1687 | (addr_t) iob, 0, 0); | |
1688 | spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); | |
1689 | if (rc) { | |
1690 | PRINT_WARN("qeth_send_control_data: " | |
1691 | "ccw_device_start rc = %i\n", rc); | |
d11ba0c4 | 1692 | QETH_DBF_TEXT_(TRACE, 2, " err%d", rc); |
4a71df50 FB |
1693 | spin_lock_irqsave(&card->lock, flags); |
1694 | list_del_init(&reply->list); | |
1695 | qeth_put_reply(reply); | |
1696 | spin_unlock_irqrestore(&card->lock, flags); | |
1697 | qeth_release_buffer(iob->channel, iob); | |
1698 | atomic_set(&card->write.irq_pending, 0); | |
1699 | wake_up(&card->wait_q); | |
1700 | return rc; | |
1701 | } | |
1702 | while (!atomic_read(&reply->received)) { | |
1703 | if (time_after(jiffies, timeout)) { | |
1704 | spin_lock_irqsave(&reply->card->lock, flags); | |
1705 | list_del_init(&reply->list); | |
1706 | spin_unlock_irqrestore(&reply->card->lock, flags); | |
1707 | reply->rc = -ETIME; | |
1708 | atomic_inc(&reply->received); | |
1709 | wake_up(&reply->wait_q); | |
1710 | } | |
1711 | cpu_relax(); | |
1712 | }; | |
1713 | rc = reply->rc; | |
1714 | qeth_put_reply(reply); | |
1715 | return rc; | |
1716 | } | |
1717 | EXPORT_SYMBOL_GPL(qeth_send_control_data); | |
1718 | ||
1719 | static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply, | |
1720 | unsigned long data) | |
1721 | { | |
1722 | struct qeth_cmd_buffer *iob; | |
1723 | ||
d11ba0c4 | 1724 | QETH_DBF_TEXT(SETUP, 2, "cmenblcb"); |
4a71df50 FB |
1725 | |
1726 | iob = (struct qeth_cmd_buffer *) data; | |
1727 | memcpy(&card->token.cm_filter_r, | |
1728 | QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data), | |
1729 | QETH_MPC_TOKEN_LENGTH); | |
d11ba0c4 | 1730 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
4a71df50 FB |
1731 | return 0; |
1732 | } | |
1733 | ||
1734 | static int qeth_cm_enable(struct qeth_card *card) | |
1735 | { | |
1736 | int rc; | |
1737 | struct qeth_cmd_buffer *iob; | |
1738 | ||
d11ba0c4 | 1739 | QETH_DBF_TEXT(SETUP, 2, "cmenable"); |
4a71df50 FB |
1740 | |
1741 | iob = qeth_wait_for_buffer(&card->write); | |
1742 | memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE); | |
1743 | memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data), | |
1744 | &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); | |
1745 | memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data), | |
1746 | &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH); | |
1747 | ||
1748 | rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob, | |
1749 | qeth_cm_enable_cb, NULL); | |
1750 | return rc; | |
1751 | } | |
1752 | ||
1753 | static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply, | |
1754 | unsigned long data) | |
1755 | { | |
1756 | ||
1757 | struct qeth_cmd_buffer *iob; | |
1758 | ||
d11ba0c4 | 1759 | QETH_DBF_TEXT(SETUP, 2, "cmsetpcb"); |
4a71df50 FB |
1760 | |
1761 | iob = (struct qeth_cmd_buffer *) data; | |
1762 | memcpy(&card->token.cm_connection_r, | |
1763 | QETH_CM_SETUP_RESP_DEST_ADDR(iob->data), | |
1764 | QETH_MPC_TOKEN_LENGTH); | |
d11ba0c4 | 1765 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
4a71df50 FB |
1766 | return 0; |
1767 | } | |
1768 | ||
1769 | static int qeth_cm_setup(struct qeth_card *card) | |
1770 | { | |
1771 | int rc; | |
1772 | struct qeth_cmd_buffer *iob; | |
1773 | ||
d11ba0c4 | 1774 | QETH_DBF_TEXT(SETUP, 2, "cmsetup"); |
4a71df50 FB |
1775 | |
1776 | iob = qeth_wait_for_buffer(&card->write); | |
1777 | memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE); | |
1778 | memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data), | |
1779 | &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); | |
1780 | memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data), | |
1781 | &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH); | |
1782 | memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data), | |
1783 | &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH); | |
1784 | rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob, | |
1785 | qeth_cm_setup_cb, NULL); | |
1786 | return rc; | |
1787 | ||
1788 | } | |
1789 | ||
1790 | static inline int qeth_get_initial_mtu_for_card(struct qeth_card *card) | |
1791 | { | |
1792 | switch (card->info.type) { | |
1793 | case QETH_CARD_TYPE_UNKNOWN: | |
1794 | return 1500; | |
1795 | case QETH_CARD_TYPE_IQD: | |
1796 | return card->info.max_mtu; | |
1797 | case QETH_CARD_TYPE_OSAE: | |
1798 | switch (card->info.link_type) { | |
1799 | case QETH_LINK_TYPE_HSTR: | |
1800 | case QETH_LINK_TYPE_LANE_TR: | |
1801 | return 2000; | |
1802 | default: | |
1803 | return 1492; | |
1804 | } | |
1805 | default: | |
1806 | return 1500; | |
1807 | } | |
1808 | } | |
1809 | ||
1810 | static inline int qeth_get_max_mtu_for_card(int cardtype) | |
1811 | { | |
1812 | switch (cardtype) { | |
1813 | ||
1814 | case QETH_CARD_TYPE_UNKNOWN: | |
1815 | case QETH_CARD_TYPE_OSAE: | |
1816 | case QETH_CARD_TYPE_OSN: | |
1817 | return 61440; | |
1818 | case QETH_CARD_TYPE_IQD: | |
1819 | return 57344; | |
1820 | default: | |
1821 | return 1500; | |
1822 | } | |
1823 | } | |
1824 | ||
1825 | static inline int qeth_get_mtu_out_of_mpc(int cardtype) | |
1826 | { | |
1827 | switch (cardtype) { | |
1828 | case QETH_CARD_TYPE_IQD: | |
1829 | return 1; | |
1830 | default: | |
1831 | return 0; | |
1832 | } | |
1833 | } | |
1834 | ||
1835 | static inline int qeth_get_mtu_outof_framesize(int framesize) | |
1836 | { | |
1837 | switch (framesize) { | |
1838 | case 0x4000: | |
1839 | return 8192; | |
1840 | case 0x6000: | |
1841 | return 16384; | |
1842 | case 0xa000: | |
1843 | return 32768; | |
1844 | case 0xffff: | |
1845 | return 57344; | |
1846 | default: | |
1847 | return 0; | |
1848 | } | |
1849 | } | |
1850 | ||
1851 | static inline int qeth_mtu_is_valid(struct qeth_card *card, int mtu) | |
1852 | { | |
1853 | switch (card->info.type) { | |
1854 | case QETH_CARD_TYPE_OSAE: | |
1855 | return ((mtu >= 576) && (mtu <= 61440)); | |
1856 | case QETH_CARD_TYPE_IQD: | |
1857 | return ((mtu >= 576) && | |
1858 | (mtu <= card->info.max_mtu + 4096 - 32)); | |
1859 | case QETH_CARD_TYPE_OSN: | |
1860 | case QETH_CARD_TYPE_UNKNOWN: | |
1861 | default: | |
1862 | return 1; | |
1863 | } | |
1864 | } | |
1865 | ||
1866 | static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply, | |
1867 | unsigned long data) | |
1868 | { | |
1869 | ||
1870 | __u16 mtu, framesize; | |
1871 | __u16 len; | |
1872 | __u8 link_type; | |
1873 | struct qeth_cmd_buffer *iob; | |
1874 | ||
d11ba0c4 | 1875 | QETH_DBF_TEXT(SETUP, 2, "ulpenacb"); |
4a71df50 FB |
1876 | |
1877 | iob = (struct qeth_cmd_buffer *) data; | |
1878 | memcpy(&card->token.ulp_filter_r, | |
1879 | QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data), | |
1880 | QETH_MPC_TOKEN_LENGTH); | |
1881 | if (qeth_get_mtu_out_of_mpc(card->info.type)) { | |
1882 | memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2); | |
1883 | mtu = qeth_get_mtu_outof_framesize(framesize); | |
1884 | if (!mtu) { | |
1885 | iob->rc = -EINVAL; | |
d11ba0c4 | 1886 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
4a71df50 FB |
1887 | return 0; |
1888 | } | |
1889 | card->info.max_mtu = mtu; | |
1890 | card->info.initial_mtu = mtu; | |
1891 | card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE; | |
1892 | } else { | |
1893 | card->info.initial_mtu = qeth_get_initial_mtu_for_card(card); | |
1894 | card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type); | |
1895 | card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT; | |
1896 | } | |
1897 | ||
1898 | memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2); | |
1899 | if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) { | |
1900 | memcpy(&link_type, | |
1901 | QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1); | |
1902 | card->info.link_type = link_type; | |
1903 | } else | |
1904 | card->info.link_type = 0; | |
d11ba0c4 | 1905 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
4a71df50 FB |
1906 | return 0; |
1907 | } | |
1908 | ||
1909 | static int qeth_ulp_enable(struct qeth_card *card) | |
1910 | { | |
1911 | int rc; | |
1912 | char prot_type; | |
1913 | struct qeth_cmd_buffer *iob; | |
1914 | ||
1915 | /*FIXME: trace view callbacks*/ | |
d11ba0c4 | 1916 | QETH_DBF_TEXT(SETUP, 2, "ulpenabl"); |
4a71df50 FB |
1917 | |
1918 | iob = qeth_wait_for_buffer(&card->write); | |
1919 | memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE); | |
1920 | ||
1921 | *(QETH_ULP_ENABLE_LINKNUM(iob->data)) = | |
1922 | (__u8) card->info.portno; | |
1923 | if (card->options.layer2) | |
1924 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
1925 | prot_type = QETH_PROT_OSN2; | |
1926 | else | |
1927 | prot_type = QETH_PROT_LAYER2; | |
1928 | else | |
1929 | prot_type = QETH_PROT_TCPIP; | |
1930 | ||
1931 | memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1); | |
1932 | memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data), | |
1933 | &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); | |
1934 | memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data), | |
1935 | &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH); | |
1936 | memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data), | |
1937 | card->info.portname, 9); | |
1938 | rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob, | |
1939 | qeth_ulp_enable_cb, NULL); | |
1940 | return rc; | |
1941 | ||
1942 | } | |
1943 | ||
1944 | static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply, | |
1945 | unsigned long data) | |
1946 | { | |
1947 | struct qeth_cmd_buffer *iob; | |
1948 | ||
d11ba0c4 | 1949 | QETH_DBF_TEXT(SETUP, 2, "ulpstpcb"); |
4a71df50 FB |
1950 | |
1951 | iob = (struct qeth_cmd_buffer *) data; | |
1952 | memcpy(&card->token.ulp_connection_r, | |
1953 | QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), | |
1954 | QETH_MPC_TOKEN_LENGTH); | |
d11ba0c4 | 1955 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
4a71df50 FB |
1956 | return 0; |
1957 | } | |
1958 | ||
1959 | static int qeth_ulp_setup(struct qeth_card *card) | |
1960 | { | |
1961 | int rc; | |
1962 | __u16 temp; | |
1963 | struct qeth_cmd_buffer *iob; | |
1964 | struct ccw_dev_id dev_id; | |
1965 | ||
d11ba0c4 | 1966 | QETH_DBF_TEXT(SETUP, 2, "ulpsetup"); |
4a71df50 FB |
1967 | |
1968 | iob = qeth_wait_for_buffer(&card->write); | |
1969 | memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE); | |
1970 | ||
1971 | memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data), | |
1972 | &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); | |
1973 | memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data), | |
1974 | &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH); | |
1975 | memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data), | |
1976 | &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH); | |
1977 | ||
1978 | ccw_device_get_id(CARD_DDEV(card), &dev_id); | |
1979 | memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2); | |
1980 | temp = (card->info.cula << 8) + card->info.unit_addr2; | |
1981 | memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2); | |
1982 | rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob, | |
1983 | qeth_ulp_setup_cb, NULL); | |
1984 | return rc; | |
1985 | } | |
1986 | ||
1987 | static int qeth_alloc_qdio_buffers(struct qeth_card *card) | |
1988 | { | |
1989 | int i, j; | |
1990 | ||
d11ba0c4 | 1991 | QETH_DBF_TEXT(SETUP, 2, "allcqdbf"); |
4a71df50 FB |
1992 | |
1993 | if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED, | |
1994 | QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED) | |
1995 | return 0; | |
1996 | ||
1997 | card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q), | |
508b3c4f | 1998 | GFP_KERNEL); |
4a71df50 FB |
1999 | if (!card->qdio.in_q) |
2000 | goto out_nomem; | |
d11ba0c4 PT |
2001 | QETH_DBF_TEXT(SETUP, 2, "inq"); |
2002 | QETH_DBF_HEX(SETUP, 2, &card->qdio.in_q, sizeof(void *)); | |
4a71df50 FB |
2003 | memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q)); |
2004 | /* give inbound qeth_qdio_buffers their qdio_buffers */ | |
2005 | for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) | |
2006 | card->qdio.in_q->bufs[i].buffer = | |
2007 | &card->qdio.in_q->qdio_bufs[i]; | |
2008 | /* inbound buffer pool */ | |
2009 | if (qeth_alloc_buffer_pool(card)) | |
2010 | goto out_freeinq; | |
2011 | /* outbound */ | |
2012 | card->qdio.out_qs = | |
2013 | kmalloc(card->qdio.no_out_queues * | |
2014 | sizeof(struct qeth_qdio_out_q *), GFP_KERNEL); | |
2015 | if (!card->qdio.out_qs) | |
2016 | goto out_freepool; | |
2017 | for (i = 0; i < card->qdio.no_out_queues; ++i) { | |
2018 | card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q), | |
508b3c4f | 2019 | GFP_KERNEL); |
4a71df50 FB |
2020 | if (!card->qdio.out_qs[i]) |
2021 | goto out_freeoutq; | |
d11ba0c4 PT |
2022 | QETH_DBF_TEXT_(SETUP, 2, "outq %i", i); |
2023 | QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *)); | |
4a71df50 FB |
2024 | memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q)); |
2025 | card->qdio.out_qs[i]->queue_no = i; | |
2026 | /* give outbound qeth_qdio_buffers their qdio_buffers */ | |
2027 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { | |
2028 | card->qdio.out_qs[i]->bufs[j].buffer = | |
2029 | &card->qdio.out_qs[i]->qdio_bufs[j]; | |
2030 | skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j]. | |
2031 | skb_list); | |
2032 | lockdep_set_class( | |
2033 | &card->qdio.out_qs[i]->bufs[j].skb_list.lock, | |
2034 | &qdio_out_skb_queue_key); | |
2035 | INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list); | |
2036 | } | |
2037 | } | |
2038 | return 0; | |
2039 | ||
2040 | out_freeoutq: | |
2041 | while (i > 0) | |
2042 | kfree(card->qdio.out_qs[--i]); | |
2043 | kfree(card->qdio.out_qs); | |
2044 | card->qdio.out_qs = NULL; | |
2045 | out_freepool: | |
2046 | qeth_free_buffer_pool(card); | |
2047 | out_freeinq: | |
2048 | kfree(card->qdio.in_q); | |
2049 | card->qdio.in_q = NULL; | |
2050 | out_nomem: | |
2051 | atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); | |
2052 | return -ENOMEM; | |
2053 | } | |
2054 | ||
2055 | static void qeth_create_qib_param_field(struct qeth_card *card, | |
2056 | char *param_field) | |
2057 | { | |
2058 | ||
2059 | param_field[0] = _ascebc['P']; | |
2060 | param_field[1] = _ascebc['C']; | |
2061 | param_field[2] = _ascebc['I']; | |
2062 | param_field[3] = _ascebc['T']; | |
2063 | *((unsigned int *) (¶m_field[4])) = QETH_PCI_THRESHOLD_A(card); | |
2064 | *((unsigned int *) (¶m_field[8])) = QETH_PCI_THRESHOLD_B(card); | |
2065 | *((unsigned int *) (¶m_field[12])) = QETH_PCI_TIMER_VALUE(card); | |
2066 | } | |
2067 | ||
2068 | static void qeth_create_qib_param_field_blkt(struct qeth_card *card, | |
2069 | char *param_field) | |
2070 | { | |
2071 | param_field[16] = _ascebc['B']; | |
2072 | param_field[17] = _ascebc['L']; | |
2073 | param_field[18] = _ascebc['K']; | |
2074 | param_field[19] = _ascebc['T']; | |
2075 | *((unsigned int *) (¶m_field[20])) = card->info.blkt.time_total; | |
2076 | *((unsigned int *) (¶m_field[24])) = card->info.blkt.inter_packet; | |
2077 | *((unsigned int *) (¶m_field[28])) = | |
2078 | card->info.blkt.inter_packet_jumbo; | |
2079 | } | |
2080 | ||
2081 | static int qeth_qdio_activate(struct qeth_card *card) | |
2082 | { | |
d11ba0c4 | 2083 | QETH_DBF_TEXT(SETUP, 3, "qdioact"); |
4a71df50 FB |
2084 | return qdio_activate(CARD_DDEV(card), 0); |
2085 | } | |
2086 | ||
2087 | static int qeth_dm_act(struct qeth_card *card) | |
2088 | { | |
2089 | int rc; | |
2090 | struct qeth_cmd_buffer *iob; | |
2091 | ||
d11ba0c4 | 2092 | QETH_DBF_TEXT(SETUP, 2, "dmact"); |
4a71df50 FB |
2093 | |
2094 | iob = qeth_wait_for_buffer(&card->write); | |
2095 | memcpy(iob->data, DM_ACT, DM_ACT_SIZE); | |
2096 | ||
2097 | memcpy(QETH_DM_ACT_DEST_ADDR(iob->data), | |
2098 | &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); | |
2099 | memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data), | |
2100 | &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); | |
2101 | rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL); | |
2102 | return rc; | |
2103 | } | |
2104 | ||
2105 | static int qeth_mpc_initialize(struct qeth_card *card) | |
2106 | { | |
2107 | int rc; | |
2108 | ||
d11ba0c4 | 2109 | QETH_DBF_TEXT(SETUP, 2, "mpcinit"); |
4a71df50 FB |
2110 | |
2111 | rc = qeth_issue_next_read(card); | |
2112 | if (rc) { | |
d11ba0c4 | 2113 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
2114 | return rc; |
2115 | } | |
2116 | rc = qeth_cm_enable(card); | |
2117 | if (rc) { | |
d11ba0c4 | 2118 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
4a71df50 FB |
2119 | goto out_qdio; |
2120 | } | |
2121 | rc = qeth_cm_setup(card); | |
2122 | if (rc) { | |
d11ba0c4 | 2123 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
4a71df50 FB |
2124 | goto out_qdio; |
2125 | } | |
2126 | rc = qeth_ulp_enable(card); | |
2127 | if (rc) { | |
d11ba0c4 | 2128 | QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); |
4a71df50 FB |
2129 | goto out_qdio; |
2130 | } | |
2131 | rc = qeth_ulp_setup(card); | |
2132 | if (rc) { | |
d11ba0c4 | 2133 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); |
4a71df50 FB |
2134 | goto out_qdio; |
2135 | } | |
2136 | rc = qeth_alloc_qdio_buffers(card); | |
2137 | if (rc) { | |
d11ba0c4 | 2138 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); |
4a71df50 FB |
2139 | goto out_qdio; |
2140 | } | |
2141 | rc = qeth_qdio_establish(card); | |
2142 | if (rc) { | |
d11ba0c4 | 2143 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); |
4a71df50 FB |
2144 | qeth_free_qdio_buffers(card); |
2145 | goto out_qdio; | |
2146 | } | |
2147 | rc = qeth_qdio_activate(card); | |
2148 | if (rc) { | |
d11ba0c4 | 2149 | QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc); |
4a71df50 FB |
2150 | goto out_qdio; |
2151 | } | |
2152 | rc = qeth_dm_act(card); | |
2153 | if (rc) { | |
d11ba0c4 | 2154 | QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc); |
4a71df50 FB |
2155 | goto out_qdio; |
2156 | } | |
2157 | ||
2158 | return 0; | |
2159 | out_qdio: | |
2160 | qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD); | |
2161 | return rc; | |
2162 | } | |
2163 | ||
2164 | static void qeth_print_status_with_portname(struct qeth_card *card) | |
2165 | { | |
2166 | char dbf_text[15]; | |
2167 | int i; | |
2168 | ||
2169 | sprintf(dbf_text, "%s", card->info.portname + 1); | |
2170 | for (i = 0; i < 8; i++) | |
2171 | dbf_text[i] = | |
2172 | (char) _ebcasc[(__u8) dbf_text[i]]; | |
2173 | dbf_text[8] = 0; | |
2174 | PRINT_INFO("Device %s/%s/%s is a%s card%s%s%s\n" | |
2175 | "with link type %s (portname: %s)\n", | |
2176 | CARD_RDEV_ID(card), | |
2177 | CARD_WDEV_ID(card), | |
2178 | CARD_DDEV_ID(card), | |
2179 | qeth_get_cardname(card), | |
2180 | (card->info.mcl_level[0]) ? " (level: " : "", | |
2181 | (card->info.mcl_level[0]) ? card->info.mcl_level : "", | |
2182 | (card->info.mcl_level[0]) ? ")" : "", | |
2183 | qeth_get_cardname_short(card), | |
2184 | dbf_text); | |
2185 | ||
2186 | } | |
2187 | ||
2188 | static void qeth_print_status_no_portname(struct qeth_card *card) | |
2189 | { | |
2190 | if (card->info.portname[0]) | |
2191 | PRINT_INFO("Device %s/%s/%s is a%s " | |
2192 | "card%s%s%s\nwith link type %s " | |
2193 | "(no portname needed by interface).\n", | |
2194 | CARD_RDEV_ID(card), | |
2195 | CARD_WDEV_ID(card), | |
2196 | CARD_DDEV_ID(card), | |
2197 | qeth_get_cardname(card), | |
2198 | (card->info.mcl_level[0]) ? " (level: " : "", | |
2199 | (card->info.mcl_level[0]) ? card->info.mcl_level : "", | |
2200 | (card->info.mcl_level[0]) ? ")" : "", | |
2201 | qeth_get_cardname_short(card)); | |
2202 | else | |
2203 | PRINT_INFO("Device %s/%s/%s is a%s " | |
2204 | "card%s%s%s\nwith link type %s.\n", | |
2205 | CARD_RDEV_ID(card), | |
2206 | CARD_WDEV_ID(card), | |
2207 | CARD_DDEV_ID(card), | |
2208 | qeth_get_cardname(card), | |
2209 | (card->info.mcl_level[0]) ? " (level: " : "", | |
2210 | (card->info.mcl_level[0]) ? card->info.mcl_level : "", | |
2211 | (card->info.mcl_level[0]) ? ")" : "", | |
2212 | qeth_get_cardname_short(card)); | |
2213 | } | |
2214 | ||
2215 | void qeth_print_status_message(struct qeth_card *card) | |
2216 | { | |
2217 | switch (card->info.type) { | |
2218 | case QETH_CARD_TYPE_OSAE: | |
2219 | /* VM will use a non-zero first character | |
2220 | * to indicate a HiperSockets like reporting | |
2221 | * of the level OSA sets the first character to zero | |
2222 | * */ | |
2223 | if (!card->info.mcl_level[0]) { | |
2224 | sprintf(card->info.mcl_level, "%02x%02x", | |
2225 | card->info.mcl_level[2], | |
2226 | card->info.mcl_level[3]); | |
2227 | ||
2228 | card->info.mcl_level[QETH_MCL_LENGTH] = 0; | |
2229 | break; | |
2230 | } | |
2231 | /* fallthrough */ | |
2232 | case QETH_CARD_TYPE_IQD: | |
2233 | if (card->info.guestlan) { | |
2234 | card->info.mcl_level[0] = (char) _ebcasc[(__u8) | |
2235 | card->info.mcl_level[0]]; | |
2236 | card->info.mcl_level[1] = (char) _ebcasc[(__u8) | |
2237 | card->info.mcl_level[1]]; | |
2238 | card->info.mcl_level[2] = (char) _ebcasc[(__u8) | |
2239 | card->info.mcl_level[2]]; | |
2240 | card->info.mcl_level[3] = (char) _ebcasc[(__u8) | |
2241 | card->info.mcl_level[3]]; | |
2242 | card->info.mcl_level[QETH_MCL_LENGTH] = 0; | |
2243 | } | |
2244 | break; | |
2245 | default: | |
2246 | memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1); | |
2247 | } | |
2248 | if (card->info.portname_required) | |
2249 | qeth_print_status_with_portname(card); | |
2250 | else | |
2251 | qeth_print_status_no_portname(card); | |
2252 | } | |
2253 | EXPORT_SYMBOL_GPL(qeth_print_status_message); | |
2254 | ||
2255 | void qeth_put_buffer_pool_entry(struct qeth_card *card, | |
2256 | struct qeth_buffer_pool_entry *entry) | |
2257 | { | |
d11ba0c4 | 2258 | QETH_DBF_TEXT(TRACE, 6, "ptbfplen"); |
4a71df50 FB |
2259 | list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list); |
2260 | } | |
2261 | EXPORT_SYMBOL_GPL(qeth_put_buffer_pool_entry); | |
2262 | ||
2263 | static void qeth_initialize_working_pool_list(struct qeth_card *card) | |
2264 | { | |
2265 | struct qeth_buffer_pool_entry *entry; | |
2266 | ||
d11ba0c4 | 2267 | QETH_DBF_TEXT(TRACE, 5, "inwrklst"); |
4a71df50 FB |
2268 | |
2269 | list_for_each_entry(entry, | |
2270 | &card->qdio.init_pool.entry_list, init_list) { | |
2271 | qeth_put_buffer_pool_entry(card, entry); | |
2272 | } | |
2273 | } | |
2274 | ||
2275 | static inline struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry( | |
2276 | struct qeth_card *card) | |
2277 | { | |
2278 | struct list_head *plh; | |
2279 | struct qeth_buffer_pool_entry *entry; | |
2280 | int i, free; | |
2281 | struct page *page; | |
2282 | ||
2283 | if (list_empty(&card->qdio.in_buf_pool.entry_list)) | |
2284 | return NULL; | |
2285 | ||
2286 | list_for_each(plh, &card->qdio.in_buf_pool.entry_list) { | |
2287 | entry = list_entry(plh, struct qeth_buffer_pool_entry, list); | |
2288 | free = 1; | |
2289 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { | |
2290 | if (page_count(virt_to_page(entry->elements[i])) > 1) { | |
2291 | free = 0; | |
2292 | break; | |
2293 | } | |
2294 | } | |
2295 | if (free) { | |
2296 | list_del_init(&entry->list); | |
2297 | return entry; | |
2298 | } | |
2299 | } | |
2300 | ||
2301 | /* no free buffer in pool so take first one and swap pages */ | |
2302 | entry = list_entry(card->qdio.in_buf_pool.entry_list.next, | |
2303 | struct qeth_buffer_pool_entry, list); | |
2304 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { | |
2305 | if (page_count(virt_to_page(entry->elements[i])) > 1) { | |
508b3c4f | 2306 | page = alloc_page(GFP_ATOMIC); |
4a71df50 FB |
2307 | if (!page) { |
2308 | return NULL; | |
2309 | } else { | |
2310 | free_page((unsigned long)entry->elements[i]); | |
2311 | entry->elements[i] = page_address(page); | |
2312 | if (card->options.performance_stats) | |
2313 | card->perf_stats.sg_alloc_page_rx++; | |
2314 | } | |
2315 | } | |
2316 | } | |
2317 | list_del_init(&entry->list); | |
2318 | return entry; | |
2319 | } | |
2320 | ||
2321 | static int qeth_init_input_buffer(struct qeth_card *card, | |
2322 | struct qeth_qdio_buffer *buf) | |
2323 | { | |
2324 | struct qeth_buffer_pool_entry *pool_entry; | |
2325 | int i; | |
2326 | ||
2327 | pool_entry = qeth_find_free_buffer_pool_entry(card); | |
2328 | if (!pool_entry) | |
2329 | return 1; | |
2330 | ||
2331 | /* | |
2332 | * since the buffer is accessed only from the input_tasklet | |
2333 | * there shouldn't be a need to synchronize; also, since we use | |
2334 | * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off | |
2335 | * buffers | |
2336 | */ | |
2337 | BUG_ON(!pool_entry); | |
2338 | ||
2339 | buf->pool_entry = pool_entry; | |
2340 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { | |
2341 | buf->buffer->element[i].length = PAGE_SIZE; | |
2342 | buf->buffer->element[i].addr = pool_entry->elements[i]; | |
2343 | if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1) | |
2344 | buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY; | |
2345 | else | |
2346 | buf->buffer->element[i].flags = 0; | |
2347 | } | |
2348 | return 0; | |
2349 | } | |
2350 | ||
2351 | int qeth_init_qdio_queues(struct qeth_card *card) | |
2352 | { | |
2353 | int i, j; | |
2354 | int rc; | |
2355 | ||
d11ba0c4 | 2356 | QETH_DBF_TEXT(SETUP, 2, "initqdqs"); |
4a71df50 FB |
2357 | |
2358 | /* inbound queue */ | |
2359 | memset(card->qdio.in_q->qdio_bufs, 0, | |
2360 | QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer)); | |
2361 | qeth_initialize_working_pool_list(card); | |
2362 | /*give only as many buffers to hardware as we have buffer pool entries*/ | |
2363 | for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i) | |
2364 | qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]); | |
2365 | card->qdio.in_q->next_buf_to_init = | |
2366 | card->qdio.in_buf_pool.buf_count - 1; | |
2367 | rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0, | |
2368 | card->qdio.in_buf_pool.buf_count - 1, NULL); | |
2369 | if (rc) { | |
d11ba0c4 | 2370 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
2371 | return rc; |
2372 | } | |
2373 | rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0); | |
2374 | if (rc) { | |
d11ba0c4 | 2375 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
4a71df50 FB |
2376 | return rc; |
2377 | } | |
2378 | /* outbound queue */ | |
2379 | for (i = 0; i < card->qdio.no_out_queues; ++i) { | |
2380 | memset(card->qdio.out_qs[i]->qdio_bufs, 0, | |
2381 | QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer)); | |
2382 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { | |
2383 | qeth_clear_output_buffer(card->qdio.out_qs[i], | |
2384 | &card->qdio.out_qs[i]->bufs[j]); | |
2385 | } | |
2386 | card->qdio.out_qs[i]->card = card; | |
2387 | card->qdio.out_qs[i]->next_buf_to_fill = 0; | |
2388 | card->qdio.out_qs[i]->do_pack = 0; | |
2389 | atomic_set(&card->qdio.out_qs[i]->used_buffers, 0); | |
2390 | atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0); | |
2391 | atomic_set(&card->qdio.out_qs[i]->state, | |
2392 | QETH_OUT_Q_UNLOCKED); | |
2393 | } | |
2394 | return 0; | |
2395 | } | |
2396 | EXPORT_SYMBOL_GPL(qeth_init_qdio_queues); | |
2397 | ||
2398 | static inline __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type) | |
2399 | { | |
2400 | switch (link_type) { | |
2401 | case QETH_LINK_TYPE_HSTR: | |
2402 | return 2; | |
2403 | default: | |
2404 | return 1; | |
2405 | } | |
2406 | } | |
2407 | ||
2408 | static void qeth_fill_ipacmd_header(struct qeth_card *card, | |
2409 | struct qeth_ipa_cmd *cmd, __u8 command, | |
2410 | enum qeth_prot_versions prot) | |
2411 | { | |
2412 | memset(cmd, 0, sizeof(struct qeth_ipa_cmd)); | |
2413 | cmd->hdr.command = command; | |
2414 | cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST; | |
2415 | cmd->hdr.seqno = card->seqno.ipa; | |
2416 | cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type); | |
2417 | cmd->hdr.rel_adapter_no = (__u8) card->info.portno; | |
2418 | if (card->options.layer2) | |
2419 | cmd->hdr.prim_version_no = 2; | |
2420 | else | |
2421 | cmd->hdr.prim_version_no = 1; | |
2422 | cmd->hdr.param_count = 1; | |
2423 | cmd->hdr.prot_version = prot; | |
2424 | cmd->hdr.ipa_supported = 0; | |
2425 | cmd->hdr.ipa_enabled = 0; | |
2426 | } | |
2427 | ||
2428 | struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card, | |
2429 | enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot) | |
2430 | { | |
2431 | struct qeth_cmd_buffer *iob; | |
2432 | struct qeth_ipa_cmd *cmd; | |
2433 | ||
2434 | iob = qeth_wait_for_buffer(&card->write); | |
2435 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
2436 | qeth_fill_ipacmd_header(card, cmd, ipacmd, prot); | |
2437 | ||
2438 | return iob; | |
2439 | } | |
2440 | EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer); | |
2441 | ||
2442 | void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, | |
2443 | char prot_type) | |
2444 | { | |
2445 | memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); | |
2446 | memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1); | |
2447 | memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), | |
2448 | &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); | |
2449 | } | |
2450 | EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd); | |
2451 | ||
2452 | int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, | |
2453 | int (*reply_cb)(struct qeth_card *, struct qeth_reply*, | |
2454 | unsigned long), | |
2455 | void *reply_param) | |
2456 | { | |
2457 | int rc; | |
2458 | char prot_type; | |
4a71df50 | 2459 | |
d11ba0c4 | 2460 | QETH_DBF_TEXT(TRACE, 4, "sendipa"); |
4a71df50 FB |
2461 | |
2462 | if (card->options.layer2) | |
2463 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
2464 | prot_type = QETH_PROT_OSN2; | |
2465 | else | |
2466 | prot_type = QETH_PROT_LAYER2; | |
2467 | else | |
2468 | prot_type = QETH_PROT_TCPIP; | |
2469 | qeth_prepare_ipa_cmd(card, iob, prot_type); | |
d11ba0c4 PT |
2470 | rc = qeth_send_control_data(card, IPA_CMD_LENGTH, |
2471 | iob, reply_cb, reply_param); | |
4a71df50 FB |
2472 | return rc; |
2473 | } | |
2474 | EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd); | |
2475 | ||
2476 | static int qeth_send_startstoplan(struct qeth_card *card, | |
2477 | enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot) | |
2478 | { | |
2479 | int rc; | |
2480 | struct qeth_cmd_buffer *iob; | |
2481 | ||
2482 | iob = qeth_get_ipacmd_buffer(card, ipacmd, prot); | |
2483 | rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); | |
2484 | ||
2485 | return rc; | |
2486 | } | |
2487 | ||
2488 | int qeth_send_startlan(struct qeth_card *card) | |
2489 | { | |
2490 | int rc; | |
2491 | ||
d11ba0c4 | 2492 | QETH_DBF_TEXT(SETUP, 2, "strtlan"); |
4a71df50 FB |
2493 | |
2494 | rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, 0); | |
2495 | return rc; | |
2496 | } | |
2497 | EXPORT_SYMBOL_GPL(qeth_send_startlan); | |
2498 | ||
2499 | int qeth_send_stoplan(struct qeth_card *card) | |
2500 | { | |
2501 | int rc = 0; | |
2502 | ||
2503 | /* | |
2504 | * TODO: according to the IPA format document page 14, | |
2505 | * TCP/IP (we!) never issue a STOPLAN | |
2506 | * is this right ?!? | |
2507 | */ | |
d11ba0c4 | 2508 | QETH_DBF_TEXT(SETUP, 2, "stoplan"); |
4a71df50 FB |
2509 | |
2510 | rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, 0); | |
2511 | return rc; | |
2512 | } | |
2513 | EXPORT_SYMBOL_GPL(qeth_send_stoplan); | |
2514 | ||
2515 | int qeth_default_setadapterparms_cb(struct qeth_card *card, | |
2516 | struct qeth_reply *reply, unsigned long data) | |
2517 | { | |
2518 | struct qeth_ipa_cmd *cmd; | |
2519 | ||
d11ba0c4 | 2520 | QETH_DBF_TEXT(TRACE, 4, "defadpcb"); |
4a71df50 FB |
2521 | |
2522 | cmd = (struct qeth_ipa_cmd *) data; | |
2523 | if (cmd->hdr.return_code == 0) | |
2524 | cmd->hdr.return_code = | |
2525 | cmd->data.setadapterparms.hdr.return_code; | |
2526 | return 0; | |
2527 | } | |
2528 | EXPORT_SYMBOL_GPL(qeth_default_setadapterparms_cb); | |
2529 | ||
2530 | static int qeth_query_setadapterparms_cb(struct qeth_card *card, | |
2531 | struct qeth_reply *reply, unsigned long data) | |
2532 | { | |
2533 | struct qeth_ipa_cmd *cmd; | |
2534 | ||
d11ba0c4 | 2535 | QETH_DBF_TEXT(TRACE, 3, "quyadpcb"); |
4a71df50 FB |
2536 | |
2537 | cmd = (struct qeth_ipa_cmd *) data; | |
2538 | if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) | |
2539 | card->info.link_type = | |
2540 | cmd->data.setadapterparms.data.query_cmds_supp.lan_type; | |
2541 | card->options.adp.supported_funcs = | |
2542 | cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds; | |
2543 | return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd); | |
2544 | } | |
2545 | ||
2546 | struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card, | |
2547 | __u32 command, __u32 cmdlen) | |
2548 | { | |
2549 | struct qeth_cmd_buffer *iob; | |
2550 | struct qeth_ipa_cmd *cmd; | |
2551 | ||
2552 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS, | |
2553 | QETH_PROT_IPV4); | |
2554 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
2555 | cmd->data.setadapterparms.hdr.cmdlength = cmdlen; | |
2556 | cmd->data.setadapterparms.hdr.command_code = command; | |
2557 | cmd->data.setadapterparms.hdr.used_total = 1; | |
2558 | cmd->data.setadapterparms.hdr.seq_no = 1; | |
2559 | ||
2560 | return iob; | |
2561 | } | |
2562 | EXPORT_SYMBOL_GPL(qeth_get_adapter_cmd); | |
2563 | ||
2564 | int qeth_query_setadapterparms(struct qeth_card *card) | |
2565 | { | |
2566 | int rc; | |
2567 | struct qeth_cmd_buffer *iob; | |
2568 | ||
d11ba0c4 | 2569 | QETH_DBF_TEXT(TRACE, 3, "queryadp"); |
4a71df50 FB |
2570 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED, |
2571 | sizeof(struct qeth_ipacmd_setadpparms)); | |
2572 | rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL); | |
2573 | return rc; | |
2574 | } | |
2575 | EXPORT_SYMBOL_GPL(qeth_query_setadapterparms); | |
2576 | ||
2577 | int qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error, | |
2578 | unsigned int siga_error, const char *dbftext) | |
2579 | { | |
2580 | if (qdio_error || siga_error) { | |
d11ba0c4 PT |
2581 | QETH_DBF_TEXT(TRACE, 2, dbftext); |
2582 | QETH_DBF_TEXT(QERR, 2, dbftext); | |
2583 | QETH_DBF_TEXT_(QERR, 2, " F15=%02X", | |
4a71df50 | 2584 | buf->element[15].flags & 0xff); |
d11ba0c4 | 2585 | QETH_DBF_TEXT_(QERR, 2, " F14=%02X", |
4a71df50 | 2586 | buf->element[14].flags & 0xff); |
d11ba0c4 PT |
2587 | QETH_DBF_TEXT_(QERR, 2, " qerr=%X", qdio_error); |
2588 | QETH_DBF_TEXT_(QERR, 2, " serr=%X", siga_error); | |
4a71df50 FB |
2589 | return 1; |
2590 | } | |
2591 | return 0; | |
2592 | } | |
2593 | EXPORT_SYMBOL_GPL(qeth_check_qdio_errors); | |
2594 | ||
2595 | void qeth_queue_input_buffer(struct qeth_card *card, int index) | |
2596 | { | |
2597 | struct qeth_qdio_q *queue = card->qdio.in_q; | |
2598 | int count; | |
2599 | int i; | |
2600 | int rc; | |
2601 | int newcount = 0; | |
2602 | ||
d11ba0c4 | 2603 | QETH_DBF_TEXT(TRACE, 6, "queinbuf"); |
4a71df50 FB |
2604 | count = (index < queue->next_buf_to_init)? |
2605 | card->qdio.in_buf_pool.buf_count - | |
2606 | (queue->next_buf_to_init - index) : | |
2607 | card->qdio.in_buf_pool.buf_count - | |
2608 | (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index); | |
2609 | /* only requeue at a certain threshold to avoid SIGAs */ | |
2610 | if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) { | |
2611 | for (i = queue->next_buf_to_init; | |
2612 | i < queue->next_buf_to_init + count; ++i) { | |
2613 | if (qeth_init_input_buffer(card, | |
2614 | &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) { | |
2615 | break; | |
2616 | } else { | |
2617 | newcount++; | |
2618 | } | |
2619 | } | |
2620 | ||
2621 | if (newcount < count) { | |
2622 | /* we are in memory shortage so we switch back to | |
2623 | traditional skb allocation and drop packages */ | |
2624 | if (!atomic_read(&card->force_alloc_skb) && | |
2625 | net_ratelimit()) | |
2626 | PRINT_WARN("Switch to alloc skb\n"); | |
2627 | atomic_set(&card->force_alloc_skb, 3); | |
2628 | count = newcount; | |
2629 | } else { | |
2630 | if ((atomic_read(&card->force_alloc_skb) == 1) && | |
2631 | net_ratelimit()) | |
2632 | PRINT_WARN("Switch to sg\n"); | |
2633 | atomic_add_unless(&card->force_alloc_skb, -1, 0); | |
2634 | } | |
2635 | ||
2636 | /* | |
2637 | * according to old code it should be avoided to requeue all | |
2638 | * 128 buffers in order to benefit from PCI avoidance. | |
2639 | * this function keeps at least one buffer (the buffer at | |
2640 | * 'index') un-requeued -> this buffer is the first buffer that | |
2641 | * will be requeued the next time | |
2642 | */ | |
2643 | if (card->options.performance_stats) { | |
2644 | card->perf_stats.inbound_do_qdio_cnt++; | |
2645 | card->perf_stats.inbound_do_qdio_start_time = | |
2646 | qeth_get_micros(); | |
2647 | } | |
2648 | rc = do_QDIO(CARD_DDEV(card), | |
2649 | QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT, | |
2650 | 0, queue->next_buf_to_init, count, NULL); | |
2651 | if (card->options.performance_stats) | |
2652 | card->perf_stats.inbound_do_qdio_time += | |
2653 | qeth_get_micros() - | |
2654 | card->perf_stats.inbound_do_qdio_start_time; | |
2655 | if (rc) { | |
2656 | PRINT_WARN("qeth_queue_input_buffer's do_QDIO " | |
2657 | "return %i (device %s).\n", | |
2658 | rc, CARD_DDEV_ID(card)); | |
d11ba0c4 PT |
2659 | QETH_DBF_TEXT(TRACE, 2, "qinberr"); |
2660 | QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_BUS_ID(card)); | |
4a71df50 FB |
2661 | } |
2662 | queue->next_buf_to_init = (queue->next_buf_to_init + count) % | |
2663 | QDIO_MAX_BUFFERS_PER_Q; | |
2664 | } | |
2665 | } | |
2666 | EXPORT_SYMBOL_GPL(qeth_queue_input_buffer); | |
2667 | ||
2668 | static int qeth_handle_send_error(struct qeth_card *card, | |
2669 | struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err, | |
2670 | unsigned int siga_err) | |
2671 | { | |
2672 | int sbalf15 = buffer->buffer->element[15].flags & 0xff; | |
2673 | int cc = siga_err & 3; | |
2674 | ||
d11ba0c4 | 2675 | QETH_DBF_TEXT(TRACE, 6, "hdsnderr"); |
4a71df50 FB |
2676 | qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr"); |
2677 | switch (cc) { | |
2678 | case 0: | |
2679 | if (qdio_err) { | |
d11ba0c4 PT |
2680 | QETH_DBF_TEXT(TRACE, 1, "lnkfail"); |
2681 | QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); | |
2682 | QETH_DBF_TEXT_(TRACE, 1, "%04x %02x", | |
4a71df50 FB |
2683 | (u16)qdio_err, (u8)sbalf15); |
2684 | return QETH_SEND_ERROR_LINK_FAILURE; | |
2685 | } | |
2686 | return QETH_SEND_ERROR_NONE; | |
2687 | case 2: | |
2688 | if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) { | |
d11ba0c4 PT |
2689 | QETH_DBF_TEXT(TRACE, 1, "SIGAcc2B"); |
2690 | QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); | |
4a71df50 FB |
2691 | return QETH_SEND_ERROR_KICK_IT; |
2692 | } | |
2693 | if ((sbalf15 >= 15) && (sbalf15 <= 31)) | |
2694 | return QETH_SEND_ERROR_RETRY; | |
2695 | return QETH_SEND_ERROR_LINK_FAILURE; | |
2696 | /* look at qdio_error and sbalf 15 */ | |
2697 | case 1: | |
d11ba0c4 PT |
2698 | QETH_DBF_TEXT(TRACE, 1, "SIGAcc1"); |
2699 | QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); | |
4a71df50 FB |
2700 | return QETH_SEND_ERROR_LINK_FAILURE; |
2701 | case 3: | |
2702 | default: | |
d11ba0c4 PT |
2703 | QETH_DBF_TEXT(TRACE, 1, "SIGAcc3"); |
2704 | QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); | |
4a71df50 FB |
2705 | return QETH_SEND_ERROR_KICK_IT; |
2706 | } | |
2707 | } | |
2708 | ||
2709 | /* | |
2710 | * Switched to packing state if the number of used buffers on a queue | |
2711 | * reaches a certain limit. | |
2712 | */ | |
2713 | static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue) | |
2714 | { | |
2715 | if (!queue->do_pack) { | |
2716 | if (atomic_read(&queue->used_buffers) | |
2717 | >= QETH_HIGH_WATERMARK_PACK){ | |
2718 | /* switch non-PACKING -> PACKING */ | |
d11ba0c4 | 2719 | QETH_DBF_TEXT(TRACE, 6, "np->pack"); |
4a71df50 FB |
2720 | if (queue->card->options.performance_stats) |
2721 | queue->card->perf_stats.sc_dp_p++; | |
2722 | queue->do_pack = 1; | |
2723 | } | |
2724 | } | |
2725 | } | |
2726 | ||
2727 | /* | |
2728 | * Switches from packing to non-packing mode. If there is a packing | |
2729 | * buffer on the queue this buffer will be prepared to be flushed. | |
2730 | * In that case 1 is returned to inform the caller. If no buffer | |
2731 | * has to be flushed, zero is returned. | |
2732 | */ | |
2733 | static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue) | |
2734 | { | |
2735 | struct qeth_qdio_out_buffer *buffer; | |
2736 | int flush_count = 0; | |
2737 | ||
2738 | if (queue->do_pack) { | |
2739 | if (atomic_read(&queue->used_buffers) | |
2740 | <= QETH_LOW_WATERMARK_PACK) { | |
2741 | /* switch PACKING -> non-PACKING */ | |
d11ba0c4 | 2742 | QETH_DBF_TEXT(TRACE, 6, "pack->np"); |
4a71df50 FB |
2743 | if (queue->card->options.performance_stats) |
2744 | queue->card->perf_stats.sc_p_dp++; | |
2745 | queue->do_pack = 0; | |
2746 | /* flush packing buffers */ | |
2747 | buffer = &queue->bufs[queue->next_buf_to_fill]; | |
2748 | if ((atomic_read(&buffer->state) == | |
2749 | QETH_QDIO_BUF_EMPTY) && | |
2750 | (buffer->next_element_to_fill > 0)) { | |
2751 | atomic_set(&buffer->state, | |
2752 | QETH_QDIO_BUF_PRIMED); | |
2753 | flush_count++; | |
2754 | queue->next_buf_to_fill = | |
2755 | (queue->next_buf_to_fill + 1) % | |
2756 | QDIO_MAX_BUFFERS_PER_Q; | |
2757 | } | |
2758 | } | |
2759 | } | |
2760 | return flush_count; | |
2761 | } | |
2762 | ||
2763 | /* | |
2764 | * Called to flush a packing buffer if no more pci flags are on the queue. | |
2765 | * Checks if there is a packing buffer and prepares it to be flushed. | |
2766 | * In that case returns 1, otherwise zero. | |
2767 | */ | |
2768 | static int qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue) | |
2769 | { | |
2770 | struct qeth_qdio_out_buffer *buffer; | |
2771 | ||
2772 | buffer = &queue->bufs[queue->next_buf_to_fill]; | |
2773 | if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) && | |
2774 | (buffer->next_element_to_fill > 0)) { | |
2775 | /* it's a packing buffer */ | |
2776 | atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); | |
2777 | queue->next_buf_to_fill = | |
2778 | (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q; | |
2779 | return 1; | |
2780 | } | |
2781 | return 0; | |
2782 | } | |
2783 | ||
2784 | static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int, | |
2785 | int index, int count) | |
2786 | { | |
2787 | struct qeth_qdio_out_buffer *buf; | |
2788 | int rc; | |
2789 | int i; | |
2790 | unsigned int qdio_flags; | |
2791 | ||
d11ba0c4 | 2792 | QETH_DBF_TEXT(TRACE, 6, "flushbuf"); |
4a71df50 FB |
2793 | |
2794 | for (i = index; i < index + count; ++i) { | |
2795 | buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]; | |
2796 | buf->buffer->element[buf->next_element_to_fill - 1].flags |= | |
2797 | SBAL_FLAGS_LAST_ENTRY; | |
2798 | ||
2799 | if (queue->card->info.type == QETH_CARD_TYPE_IQD) | |
2800 | continue; | |
2801 | ||
2802 | if (!queue->do_pack) { | |
2803 | if ((atomic_read(&queue->used_buffers) >= | |
2804 | (QETH_HIGH_WATERMARK_PACK - | |
2805 | QETH_WATERMARK_PACK_FUZZ)) && | |
2806 | !atomic_read(&queue->set_pci_flags_count)) { | |
2807 | /* it's likely that we'll go to packing | |
2808 | * mode soon */ | |
2809 | atomic_inc(&queue->set_pci_flags_count); | |
2810 | buf->buffer->element[0].flags |= 0x40; | |
2811 | } | |
2812 | } else { | |
2813 | if (!atomic_read(&queue->set_pci_flags_count)) { | |
2814 | /* | |
2815 | * there's no outstanding PCI any more, so we | |
2816 | * have to request a PCI to be sure the the PCI | |
2817 | * will wake at some time in the future then we | |
2818 | * can flush packed buffers that might still be | |
2819 | * hanging around, which can happen if no | |
2820 | * further send was requested by the stack | |
2821 | */ | |
2822 | atomic_inc(&queue->set_pci_flags_count); | |
2823 | buf->buffer->element[0].flags |= 0x40; | |
2824 | } | |
2825 | } | |
2826 | } | |
2827 | ||
2828 | queue->card->dev->trans_start = jiffies; | |
2829 | if (queue->card->options.performance_stats) { | |
2830 | queue->card->perf_stats.outbound_do_qdio_cnt++; | |
2831 | queue->card->perf_stats.outbound_do_qdio_start_time = | |
2832 | qeth_get_micros(); | |
2833 | } | |
2834 | qdio_flags = QDIO_FLAG_SYNC_OUTPUT; | |
2835 | if (under_int) | |
2836 | qdio_flags |= QDIO_FLAG_UNDER_INTERRUPT; | |
2837 | if (atomic_read(&queue->set_pci_flags_count)) | |
2838 | qdio_flags |= QDIO_FLAG_PCI_OUT; | |
2839 | rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags, | |
2840 | queue->queue_no, index, count, NULL); | |
2841 | if (queue->card->options.performance_stats) | |
2842 | queue->card->perf_stats.outbound_do_qdio_time += | |
2843 | qeth_get_micros() - | |
2844 | queue->card->perf_stats.outbound_do_qdio_start_time; | |
2845 | if (rc) { | |
d11ba0c4 PT |
2846 | QETH_DBF_TEXT(TRACE, 2, "flushbuf"); |
2847 | QETH_DBF_TEXT_(TRACE, 2, " err%d", rc); | |
2848 | QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_DDEV_ID(queue->card)); | |
4a71df50 FB |
2849 | queue->card->stats.tx_errors += count; |
2850 | /* this must not happen under normal circumstances. if it | |
2851 | * happens something is really wrong -> recover */ | |
2852 | qeth_schedule_recovery(queue->card); | |
2853 | return; | |
2854 | } | |
2855 | atomic_add(count, &queue->used_buffers); | |
2856 | if (queue->card->options.performance_stats) | |
2857 | queue->card->perf_stats.bufs_sent += count; | |
2858 | } | |
2859 | ||
2860 | static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue) | |
2861 | { | |
2862 | int index; | |
2863 | int flush_cnt = 0; | |
2864 | int q_was_packing = 0; | |
2865 | ||
2866 | /* | |
2867 | * check if weed have to switch to non-packing mode or if | |
2868 | * we have to get a pci flag out on the queue | |
2869 | */ | |
2870 | if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) || | |
2871 | !atomic_read(&queue->set_pci_flags_count)) { | |
2872 | if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) == | |
2873 | QETH_OUT_Q_UNLOCKED) { | |
2874 | /* | |
2875 | * If we get in here, there was no action in | |
2876 | * do_send_packet. So, we check if there is a | |
2877 | * packing buffer to be flushed here. | |
2878 | */ | |
2879 | netif_stop_queue(queue->card->dev); | |
2880 | index = queue->next_buf_to_fill; | |
2881 | q_was_packing = queue->do_pack; | |
2882 | /* queue->do_pack may change */ | |
2883 | barrier(); | |
2884 | flush_cnt += qeth_switch_to_nonpacking_if_needed(queue); | |
2885 | if (!flush_cnt && | |
2886 | !atomic_read(&queue->set_pci_flags_count)) | |
2887 | flush_cnt += | |
2888 | qeth_flush_buffers_on_no_pci(queue); | |
2889 | if (queue->card->options.performance_stats && | |
2890 | q_was_packing) | |
2891 | queue->card->perf_stats.bufs_sent_pack += | |
2892 | flush_cnt; | |
2893 | if (flush_cnt) | |
2894 | qeth_flush_buffers(queue, 1, index, flush_cnt); | |
2895 | atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); | |
2896 | } | |
2897 | } | |
2898 | } | |
2899 | ||
2900 | void qeth_qdio_output_handler(struct ccw_device *ccwdev, unsigned int status, | |
2901 | unsigned int qdio_error, unsigned int siga_error, | |
2902 | unsigned int __queue, int first_element, int count, | |
2903 | unsigned long card_ptr) | |
2904 | { | |
2905 | struct qeth_card *card = (struct qeth_card *) card_ptr; | |
2906 | struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue]; | |
2907 | struct qeth_qdio_out_buffer *buffer; | |
2908 | int i; | |
2909 | ||
d11ba0c4 | 2910 | QETH_DBF_TEXT(TRACE, 6, "qdouhdl"); |
4a71df50 FB |
2911 | if (status & QDIO_STATUS_LOOK_FOR_ERROR) { |
2912 | if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION) { | |
d11ba0c4 PT |
2913 | QETH_DBF_TEXT(TRACE, 2, "achkcond"); |
2914 | QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_BUS_ID(card)); | |
2915 | QETH_DBF_TEXT_(TRACE, 2, "%08x", status); | |
4a71df50 FB |
2916 | netif_stop_queue(card->dev); |
2917 | qeth_schedule_recovery(card); | |
2918 | return; | |
2919 | } | |
2920 | } | |
2921 | if (card->options.performance_stats) { | |
2922 | card->perf_stats.outbound_handler_cnt++; | |
2923 | card->perf_stats.outbound_handler_start_time = | |
2924 | qeth_get_micros(); | |
2925 | } | |
2926 | for (i = first_element; i < (first_element + count); ++i) { | |
2927 | buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]; | |
2928 | /*we only handle the KICK_IT error by doing a recovery */ | |
2929 | if (qeth_handle_send_error(card, buffer, | |
2930 | qdio_error, siga_error) | |
2931 | == QETH_SEND_ERROR_KICK_IT){ | |
2932 | netif_stop_queue(card->dev); | |
2933 | qeth_schedule_recovery(card); | |
2934 | return; | |
2935 | } | |
2936 | qeth_clear_output_buffer(queue, buffer); | |
2937 | } | |
2938 | atomic_sub(count, &queue->used_buffers); | |
2939 | /* check if we need to do something on this outbound queue */ | |
2940 | if (card->info.type != QETH_CARD_TYPE_IQD) | |
2941 | qeth_check_outbound_queue(queue); | |
2942 | ||
2943 | netif_wake_queue(queue->card->dev); | |
2944 | if (card->options.performance_stats) | |
2945 | card->perf_stats.outbound_handler_time += qeth_get_micros() - | |
2946 | card->perf_stats.outbound_handler_start_time; | |
2947 | } | |
2948 | EXPORT_SYMBOL_GPL(qeth_qdio_output_handler); | |
2949 | ||
2950 | int qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb) | |
2951 | { | |
2952 | int cast_type = RTN_UNSPEC; | |
2953 | ||
2954 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
2955 | return cast_type; | |
2956 | ||
2957 | if (skb->dst && skb->dst->neighbour) { | |
2958 | cast_type = skb->dst->neighbour->type; | |
2959 | if ((cast_type == RTN_BROADCAST) || | |
2960 | (cast_type == RTN_MULTICAST) || | |
2961 | (cast_type == RTN_ANYCAST)) | |
2962 | return cast_type; | |
2963 | else | |
2964 | return RTN_UNSPEC; | |
2965 | } | |
2966 | /* try something else */ | |
2967 | if (skb->protocol == ETH_P_IPV6) | |
2968 | return (skb_network_header(skb)[24] == 0xff) ? | |
2969 | RTN_MULTICAST : 0; | |
2970 | else if (skb->protocol == ETH_P_IP) | |
2971 | return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ? | |
2972 | RTN_MULTICAST : 0; | |
2973 | /* ... */ | |
2974 | if (!memcmp(skb->data, skb->dev->broadcast, 6)) | |
2975 | return RTN_BROADCAST; | |
2976 | else { | |
2977 | u16 hdr_mac; | |
2978 | ||
2979 | hdr_mac = *((u16 *)skb->data); | |
2980 | /* tr multicast? */ | |
2981 | switch (card->info.link_type) { | |
2982 | case QETH_LINK_TYPE_HSTR: | |
2983 | case QETH_LINK_TYPE_LANE_TR: | |
2984 | if ((hdr_mac == QETH_TR_MAC_NC) || | |
2985 | (hdr_mac == QETH_TR_MAC_C)) | |
2986 | return RTN_MULTICAST; | |
2987 | break; | |
2988 | /* eth or so multicast? */ | |
2989 | default: | |
2990 | if ((hdr_mac == QETH_ETH_MAC_V4) || | |
2991 | (hdr_mac == QETH_ETH_MAC_V6)) | |
2992 | return RTN_MULTICAST; | |
2993 | } | |
2994 | } | |
2995 | return cast_type; | |
2996 | } | |
2997 | EXPORT_SYMBOL_GPL(qeth_get_cast_type); | |
2998 | ||
2999 | int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb, | |
3000 | int ipv, int cast_type) | |
3001 | { | |
3002 | if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE)) | |
3003 | return card->qdio.default_out_queue; | |
3004 | switch (card->qdio.no_out_queues) { | |
3005 | case 4: | |
3006 | if (cast_type && card->info.is_multicast_different) | |
3007 | return card->info.is_multicast_different & | |
3008 | (card->qdio.no_out_queues - 1); | |
3009 | if (card->qdio.do_prio_queueing && (ipv == 4)) { | |
3010 | const u8 tos = ip_hdr(skb)->tos; | |
3011 | ||
3012 | if (card->qdio.do_prio_queueing == | |
3013 | QETH_PRIO_Q_ING_TOS) { | |
3014 | if (tos & IP_TOS_NOTIMPORTANT) | |
3015 | return 3; | |
3016 | if (tos & IP_TOS_HIGHRELIABILITY) | |
3017 | return 2; | |
3018 | if (tos & IP_TOS_HIGHTHROUGHPUT) | |
3019 | return 1; | |
3020 | if (tos & IP_TOS_LOWDELAY) | |
3021 | return 0; | |
3022 | } | |
3023 | if (card->qdio.do_prio_queueing == | |
3024 | QETH_PRIO_Q_ING_PREC) | |
3025 | return 3 - (tos >> 6); | |
3026 | } else if (card->qdio.do_prio_queueing && (ipv == 6)) { | |
3027 | /* TODO: IPv6!!! */ | |
3028 | } | |
3029 | return card->qdio.default_out_queue; | |
3030 | case 1: /* fallthrough for single-out-queue 1920-device */ | |
3031 | default: | |
3032 | return card->qdio.default_out_queue; | |
3033 | } | |
3034 | } | |
3035 | EXPORT_SYMBOL_GPL(qeth_get_priority_queue); | |
3036 | ||
3037 | static void __qeth_free_new_skb(struct sk_buff *orig_skb, | |
3038 | struct sk_buff *new_skb) | |
3039 | { | |
3040 | if (orig_skb != new_skb) | |
3041 | dev_kfree_skb_any(new_skb); | |
3042 | } | |
3043 | ||
3044 | static inline struct sk_buff *qeth_realloc_headroom(struct qeth_card *card, | |
3045 | struct sk_buff *skb, int size) | |
3046 | { | |
3047 | struct sk_buff *new_skb = skb; | |
3048 | ||
3049 | if (skb_headroom(skb) >= size) | |
3050 | return skb; | |
3051 | new_skb = skb_realloc_headroom(skb, size); | |
3052 | if (!new_skb) | |
3053 | PRINT_ERR("Could not realloc headroom for qeth_hdr " | |
3054 | "on interface %s", QETH_CARD_IFNAME(card)); | |
3055 | return new_skb; | |
3056 | } | |
3057 | ||
3058 | struct sk_buff *qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, | |
3059 | struct qeth_hdr **hdr) | |
3060 | { | |
3061 | struct sk_buff *new_skb; | |
3062 | ||
d11ba0c4 | 3063 | QETH_DBF_TEXT(TRACE, 6, "prepskb"); |
4a71df50 FB |
3064 | |
3065 | new_skb = qeth_realloc_headroom(card, skb, | |
3066 | sizeof(struct qeth_hdr)); | |
3067 | if (!new_skb) | |
3068 | return NULL; | |
3069 | ||
3070 | *hdr = ((struct qeth_hdr *)qeth_push_skb(card, new_skb, | |
3071 | sizeof(struct qeth_hdr))); | |
3072 | if (*hdr == NULL) { | |
3073 | __qeth_free_new_skb(skb, new_skb); | |
3074 | return NULL; | |
3075 | } | |
3076 | return new_skb; | |
3077 | } | |
3078 | EXPORT_SYMBOL_GPL(qeth_prepare_skb); | |
3079 | ||
3080 | int qeth_get_elements_no(struct qeth_card *card, void *hdr, | |
3081 | struct sk_buff *skb, int elems) | |
3082 | { | |
3083 | int elements_needed = 0; | |
3084 | ||
3085 | if (skb_shinfo(skb)->nr_frags > 0) | |
3086 | elements_needed = (skb_shinfo(skb)->nr_frags + 1); | |
3087 | if (elements_needed == 0) | |
3088 | elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE) | |
3089 | + skb->len) >> PAGE_SHIFT); | |
3090 | if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)) { | |
3091 | PRINT_ERR("Invalid size of IP packet " | |
3092 | "(Number=%d / Length=%d). Discarded.\n", | |
3093 | (elements_needed+elems), skb->len); | |
3094 | return 0; | |
3095 | } | |
3096 | return elements_needed; | |
3097 | } | |
3098 | EXPORT_SYMBOL_GPL(qeth_get_elements_no); | |
3099 | ||
3100 | static void __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer, | |
3101 | int is_tso, int *next_element_to_fill) | |
3102 | { | |
3103 | int length = skb->len; | |
3104 | int length_here; | |
3105 | int element; | |
3106 | char *data; | |
3107 | int first_lap ; | |
3108 | ||
3109 | element = *next_element_to_fill; | |
3110 | data = skb->data; | |
3111 | first_lap = (is_tso == 0 ? 1 : 0); | |
3112 | ||
3113 | while (length > 0) { | |
3114 | /* length_here is the remaining amount of data in this page */ | |
3115 | length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE); | |
3116 | if (length < length_here) | |
3117 | length_here = length; | |
3118 | ||
3119 | buffer->element[element].addr = data; | |
3120 | buffer->element[element].length = length_here; | |
3121 | length -= length_here; | |
3122 | if (!length) { | |
3123 | if (first_lap) | |
3124 | buffer->element[element].flags = 0; | |
3125 | else | |
3126 | buffer->element[element].flags = | |
3127 | SBAL_FLAGS_LAST_FRAG; | |
3128 | } else { | |
3129 | if (first_lap) | |
3130 | buffer->element[element].flags = | |
3131 | SBAL_FLAGS_FIRST_FRAG; | |
3132 | else | |
3133 | buffer->element[element].flags = | |
3134 | SBAL_FLAGS_MIDDLE_FRAG; | |
3135 | } | |
3136 | data += length_here; | |
3137 | element++; | |
3138 | first_lap = 0; | |
3139 | } | |
3140 | *next_element_to_fill = element; | |
3141 | } | |
3142 | ||
3143 | static int qeth_fill_buffer(struct qeth_qdio_out_q *queue, | |
3144 | struct qeth_qdio_out_buffer *buf, struct sk_buff *skb) | |
3145 | { | |
3146 | struct qdio_buffer *buffer; | |
3147 | struct qeth_hdr_tso *hdr; | |
3148 | int flush_cnt = 0, hdr_len, large_send = 0; | |
3149 | ||
d11ba0c4 | 3150 | QETH_DBF_TEXT(TRACE, 6, "qdfillbf"); |
4a71df50 FB |
3151 | |
3152 | buffer = buf->buffer; | |
3153 | atomic_inc(&skb->users); | |
3154 | skb_queue_tail(&buf->skb_list, skb); | |
3155 | ||
3156 | hdr = (struct qeth_hdr_tso *) skb->data; | |
3157 | /*check first on TSO ....*/ | |
3158 | if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) { | |
3159 | int element = buf->next_element_to_fill; | |
3160 | ||
3161 | hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len; | |
3162 | /*fill first buffer entry only with header information */ | |
3163 | buffer->element[element].addr = skb->data; | |
3164 | buffer->element[element].length = hdr_len; | |
3165 | buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG; | |
3166 | buf->next_element_to_fill++; | |
3167 | skb->data += hdr_len; | |
3168 | skb->len -= hdr_len; | |
3169 | large_send = 1; | |
3170 | } | |
3171 | if (skb_shinfo(skb)->nr_frags == 0) | |
3172 | __qeth_fill_buffer(skb, buffer, large_send, | |
3173 | (int *)&buf->next_element_to_fill); | |
3174 | else | |
3175 | __qeth_fill_buffer_frag(skb, buffer, large_send, | |
3176 | (int *)&buf->next_element_to_fill); | |
3177 | ||
3178 | if (!queue->do_pack) { | |
d11ba0c4 | 3179 | QETH_DBF_TEXT(TRACE, 6, "fillbfnp"); |
4a71df50 FB |
3180 | /* set state to PRIMED -> will be flushed */ |
3181 | atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); | |
3182 | flush_cnt = 1; | |
3183 | } else { | |
d11ba0c4 | 3184 | QETH_DBF_TEXT(TRACE, 6, "fillbfpa"); |
4a71df50 FB |
3185 | if (queue->card->options.performance_stats) |
3186 | queue->card->perf_stats.skbs_sent_pack++; | |
3187 | if (buf->next_element_to_fill >= | |
3188 | QETH_MAX_BUFFER_ELEMENTS(queue->card)) { | |
3189 | /* | |
3190 | * packed buffer if full -> set state PRIMED | |
3191 | * -> will be flushed | |
3192 | */ | |
3193 | atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); | |
3194 | flush_cnt = 1; | |
3195 | } | |
3196 | } | |
3197 | return flush_cnt; | |
3198 | } | |
3199 | ||
3200 | int qeth_do_send_packet_fast(struct qeth_card *card, | |
3201 | struct qeth_qdio_out_q *queue, struct sk_buff *skb, | |
3202 | struct qeth_hdr *hdr, int elements_needed, | |
3203 | struct qeth_eddp_context *ctx) | |
3204 | { | |
3205 | struct qeth_qdio_out_buffer *buffer; | |
3206 | int buffers_needed = 0; | |
3207 | int flush_cnt = 0; | |
3208 | int index; | |
3209 | ||
d11ba0c4 | 3210 | QETH_DBF_TEXT(TRACE, 6, "dosndpfa"); |
4a71df50 FB |
3211 | |
3212 | /* spin until we get the queue ... */ | |
3213 | while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED, | |
3214 | QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED); | |
3215 | /* ... now we've got the queue */ | |
3216 | index = queue->next_buf_to_fill; | |
3217 | buffer = &queue->bufs[queue->next_buf_to_fill]; | |
3218 | /* | |
3219 | * check if buffer is empty to make sure that we do not 'overtake' | |
3220 | * ourselves and try to fill a buffer that is already primed | |
3221 | */ | |
3222 | if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) | |
3223 | goto out; | |
3224 | if (ctx == NULL) | |
3225 | queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) % | |
3226 | QDIO_MAX_BUFFERS_PER_Q; | |
3227 | else { | |
3228 | buffers_needed = qeth_eddp_check_buffers_for_context(queue, | |
3229 | ctx); | |
3230 | if (buffers_needed < 0) | |
3231 | goto out; | |
3232 | queue->next_buf_to_fill = | |
3233 | (queue->next_buf_to_fill + buffers_needed) % | |
3234 | QDIO_MAX_BUFFERS_PER_Q; | |
3235 | } | |
3236 | atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); | |
3237 | if (ctx == NULL) { | |
3238 | qeth_fill_buffer(queue, buffer, skb); | |
3239 | qeth_flush_buffers(queue, 0, index, 1); | |
3240 | } else { | |
3241 | flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index); | |
3242 | WARN_ON(buffers_needed != flush_cnt); | |
3243 | qeth_flush_buffers(queue, 0, index, flush_cnt); | |
3244 | } | |
3245 | return 0; | |
3246 | out: | |
3247 | atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); | |
3248 | return -EBUSY; | |
3249 | } | |
3250 | EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast); | |
3251 | ||
3252 | int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, | |
3253 | struct sk_buff *skb, struct qeth_hdr *hdr, | |
3254 | int elements_needed, struct qeth_eddp_context *ctx) | |
3255 | { | |
3256 | struct qeth_qdio_out_buffer *buffer; | |
3257 | int start_index; | |
3258 | int flush_count = 0; | |
3259 | int do_pack = 0; | |
3260 | int tmp; | |
3261 | int rc = 0; | |
3262 | ||
d11ba0c4 | 3263 | QETH_DBF_TEXT(TRACE, 6, "dosndpkt"); |
4a71df50 FB |
3264 | |
3265 | /* spin until we get the queue ... */ | |
3266 | while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED, | |
3267 | QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED); | |
3268 | start_index = queue->next_buf_to_fill; | |
3269 | buffer = &queue->bufs[queue->next_buf_to_fill]; | |
3270 | /* | |
3271 | * check if buffer is empty to make sure that we do not 'overtake' | |
3272 | * ourselves and try to fill a buffer that is already primed | |
3273 | */ | |
3274 | if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) { | |
3275 | atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); | |
3276 | return -EBUSY; | |
3277 | } | |
3278 | /* check if we need to switch packing state of this queue */ | |
3279 | qeth_switch_to_packing_if_needed(queue); | |
3280 | if (queue->do_pack) { | |
3281 | do_pack = 1; | |
3282 | if (ctx == NULL) { | |
3283 | /* does packet fit in current buffer? */ | |
3284 | if ((QETH_MAX_BUFFER_ELEMENTS(card) - | |
3285 | buffer->next_element_to_fill) < elements_needed) { | |
3286 | /* ... no -> set state PRIMED */ | |
3287 | atomic_set(&buffer->state, | |
3288 | QETH_QDIO_BUF_PRIMED); | |
3289 | flush_count++; | |
3290 | queue->next_buf_to_fill = | |
3291 | (queue->next_buf_to_fill + 1) % | |
3292 | QDIO_MAX_BUFFERS_PER_Q; | |
3293 | buffer = &queue->bufs[queue->next_buf_to_fill]; | |
3294 | /* we did a step forward, so check buffer state | |
3295 | * again */ | |
3296 | if (atomic_read(&buffer->state) != | |
3297 | QETH_QDIO_BUF_EMPTY){ | |
3298 | qeth_flush_buffers(queue, 0, | |
3299 | start_index, flush_count); | |
3300 | atomic_set(&queue->state, | |
3301 | QETH_OUT_Q_UNLOCKED); | |
3302 | return -EBUSY; | |
3303 | } | |
3304 | } | |
3305 | } else { | |
3306 | /* check if we have enough elements (including following | |
3307 | * free buffers) to handle eddp context */ | |
3308 | if (qeth_eddp_check_buffers_for_context(queue, ctx) | |
3309 | < 0) { | |
3310 | if (net_ratelimit()) | |
3311 | PRINT_WARN("eddp tx_dropped 1\n"); | |
3312 | rc = -EBUSY; | |
3313 | goto out; | |
3314 | } | |
3315 | } | |
3316 | } | |
3317 | if (ctx == NULL) | |
3318 | tmp = qeth_fill_buffer(queue, buffer, skb); | |
3319 | else { | |
3320 | tmp = qeth_eddp_fill_buffer(queue, ctx, | |
3321 | queue->next_buf_to_fill); | |
3322 | if (tmp < 0) { | |
3323 | PRINT_ERR("eddp tx_dropped 2\n"); | |
3324 | rc = -EBUSY; | |
3325 | goto out; | |
3326 | } | |
3327 | } | |
3328 | queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) % | |
3329 | QDIO_MAX_BUFFERS_PER_Q; | |
3330 | flush_count += tmp; | |
3331 | out: | |
3332 | if (flush_count) | |
3333 | qeth_flush_buffers(queue, 0, start_index, flush_count); | |
3334 | else if (!atomic_read(&queue->set_pci_flags_count)) | |
3335 | atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH); | |
3336 | /* | |
3337 | * queue->state will go from LOCKED -> UNLOCKED or from | |
3338 | * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us | |
3339 | * (switch packing state or flush buffer to get another pci flag out). | |
3340 | * In that case we will enter this loop | |
3341 | */ | |
3342 | while (atomic_dec_return(&queue->state)) { | |
3343 | flush_count = 0; | |
3344 | start_index = queue->next_buf_to_fill; | |
3345 | /* check if we can go back to non-packing state */ | |
3346 | flush_count += qeth_switch_to_nonpacking_if_needed(queue); | |
3347 | /* | |
3348 | * check if we need to flush a packing buffer to get a pci | |
3349 | * flag out on the queue | |
3350 | */ | |
3351 | if (!flush_count && !atomic_read(&queue->set_pci_flags_count)) | |
3352 | flush_count += qeth_flush_buffers_on_no_pci(queue); | |
3353 | if (flush_count) | |
3354 | qeth_flush_buffers(queue, 0, start_index, flush_count); | |
3355 | } | |
3356 | /* at this point the queue is UNLOCKED again */ | |
3357 | if (queue->card->options.performance_stats && do_pack) | |
3358 | queue->card->perf_stats.bufs_sent_pack += flush_count; | |
3359 | ||
3360 | return rc; | |
3361 | } | |
3362 | EXPORT_SYMBOL_GPL(qeth_do_send_packet); | |
3363 | ||
3364 | static int qeth_setadp_promisc_mode_cb(struct qeth_card *card, | |
3365 | struct qeth_reply *reply, unsigned long data) | |
3366 | { | |
3367 | struct qeth_ipa_cmd *cmd; | |
3368 | struct qeth_ipacmd_setadpparms *setparms; | |
3369 | ||
d11ba0c4 | 3370 | QETH_DBF_TEXT(TRACE, 4, "prmadpcb"); |
4a71df50 FB |
3371 | |
3372 | cmd = (struct qeth_ipa_cmd *) data; | |
3373 | setparms = &(cmd->data.setadapterparms); | |
3374 | ||
3375 | qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd); | |
3376 | if (cmd->hdr.return_code) { | |
d11ba0c4 | 3377 | QETH_DBF_TEXT_(TRACE, 4, "prmrc%2.2x", cmd->hdr.return_code); |
4a71df50 FB |
3378 | setparms->data.mode = SET_PROMISC_MODE_OFF; |
3379 | } | |
3380 | card->info.promisc_mode = setparms->data.mode; | |
3381 | return 0; | |
3382 | } | |
3383 | ||
3384 | void qeth_setadp_promisc_mode(struct qeth_card *card) | |
3385 | { | |
3386 | enum qeth_ipa_promisc_modes mode; | |
3387 | struct net_device *dev = card->dev; | |
3388 | struct qeth_cmd_buffer *iob; | |
3389 | struct qeth_ipa_cmd *cmd; | |
3390 | ||
d11ba0c4 | 3391 | QETH_DBF_TEXT(TRACE, 4, "setprom"); |
4a71df50 FB |
3392 | |
3393 | if (((dev->flags & IFF_PROMISC) && | |
3394 | (card->info.promisc_mode == SET_PROMISC_MODE_ON)) || | |
3395 | (!(dev->flags & IFF_PROMISC) && | |
3396 | (card->info.promisc_mode == SET_PROMISC_MODE_OFF))) | |
3397 | return; | |
3398 | mode = SET_PROMISC_MODE_OFF; | |
3399 | if (dev->flags & IFF_PROMISC) | |
3400 | mode = SET_PROMISC_MODE_ON; | |
d11ba0c4 | 3401 | QETH_DBF_TEXT_(TRACE, 4, "mode:%x", mode); |
4a71df50 FB |
3402 | |
3403 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE, | |
3404 | sizeof(struct qeth_ipacmd_setadpparms)); | |
3405 | cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE); | |
3406 | cmd->data.setadapterparms.data.mode = mode; | |
3407 | qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL); | |
3408 | } | |
3409 | EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode); | |
3410 | ||
3411 | int qeth_change_mtu(struct net_device *dev, int new_mtu) | |
3412 | { | |
3413 | struct qeth_card *card; | |
3414 | char dbf_text[15]; | |
3415 | ||
3416 | card = netdev_priv(dev); | |
3417 | ||
d11ba0c4 | 3418 | QETH_DBF_TEXT(TRACE, 4, "chgmtu"); |
4a71df50 | 3419 | sprintf(dbf_text, "%8x", new_mtu); |
d11ba0c4 | 3420 | QETH_DBF_TEXT(TRACE, 4, dbf_text); |
4a71df50 FB |
3421 | |
3422 | if (new_mtu < 64) | |
3423 | return -EINVAL; | |
3424 | if (new_mtu > 65535) | |
3425 | return -EINVAL; | |
3426 | if ((!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) && | |
3427 | (!qeth_mtu_is_valid(card, new_mtu))) | |
3428 | return -EINVAL; | |
3429 | dev->mtu = new_mtu; | |
3430 | return 0; | |
3431 | } | |
3432 | EXPORT_SYMBOL_GPL(qeth_change_mtu); | |
3433 | ||
3434 | struct net_device_stats *qeth_get_stats(struct net_device *dev) | |
3435 | { | |
3436 | struct qeth_card *card; | |
3437 | ||
3438 | card = netdev_priv(dev); | |
3439 | ||
d11ba0c4 | 3440 | QETH_DBF_TEXT(TRACE, 5, "getstat"); |
4a71df50 FB |
3441 | |
3442 | return &card->stats; | |
3443 | } | |
3444 | EXPORT_SYMBOL_GPL(qeth_get_stats); | |
3445 | ||
3446 | static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card, | |
3447 | struct qeth_reply *reply, unsigned long data) | |
3448 | { | |
3449 | struct qeth_ipa_cmd *cmd; | |
3450 | ||
d11ba0c4 | 3451 | QETH_DBF_TEXT(TRACE, 4, "chgmaccb"); |
4a71df50 FB |
3452 | |
3453 | cmd = (struct qeth_ipa_cmd *) data; | |
3454 | if (!card->options.layer2 || | |
3455 | !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) { | |
3456 | memcpy(card->dev->dev_addr, | |
3457 | &cmd->data.setadapterparms.data.change_addr.addr, | |
3458 | OSA_ADDR_LEN); | |
3459 | card->info.mac_bits |= QETH_LAYER2_MAC_READ; | |
3460 | } | |
3461 | qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd); | |
3462 | return 0; | |
3463 | } | |
3464 | ||
3465 | int qeth_setadpparms_change_macaddr(struct qeth_card *card) | |
3466 | { | |
3467 | int rc; | |
3468 | struct qeth_cmd_buffer *iob; | |
3469 | struct qeth_ipa_cmd *cmd; | |
3470 | ||
d11ba0c4 | 3471 | QETH_DBF_TEXT(TRACE, 4, "chgmac"); |
4a71df50 FB |
3472 | |
3473 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS, | |
3474 | sizeof(struct qeth_ipacmd_setadpparms)); | |
3475 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
3476 | cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC; | |
3477 | cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN; | |
3478 | memcpy(&cmd->data.setadapterparms.data.change_addr.addr, | |
3479 | card->dev->dev_addr, OSA_ADDR_LEN); | |
3480 | rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb, | |
3481 | NULL); | |
3482 | return rc; | |
3483 | } | |
3484 | EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr); | |
3485 | ||
3486 | void qeth_tx_timeout(struct net_device *dev) | |
3487 | { | |
3488 | struct qeth_card *card; | |
3489 | ||
3490 | card = netdev_priv(dev); | |
3491 | card->stats.tx_errors++; | |
3492 | qeth_schedule_recovery(card); | |
3493 | } | |
3494 | EXPORT_SYMBOL_GPL(qeth_tx_timeout); | |
3495 | ||
3496 | int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum) | |
3497 | { | |
3498 | struct qeth_card *card = netdev_priv(dev); | |
3499 | int rc = 0; | |
3500 | ||
3501 | switch (regnum) { | |
3502 | case MII_BMCR: /* Basic mode control register */ | |
3503 | rc = BMCR_FULLDPLX; | |
3504 | if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) && | |
3505 | (card->info.link_type != QETH_LINK_TYPE_OSN) && | |
3506 | (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH)) | |
3507 | rc |= BMCR_SPEED100; | |
3508 | break; | |
3509 | case MII_BMSR: /* Basic mode status register */ | |
3510 | rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS | | |
3511 | BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL | | |
3512 | BMSR_100BASE4; | |
3513 | break; | |
3514 | case MII_PHYSID1: /* PHYS ID 1 */ | |
3515 | rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) | | |
3516 | dev->dev_addr[2]; | |
3517 | rc = (rc >> 5) & 0xFFFF; | |
3518 | break; | |
3519 | case MII_PHYSID2: /* PHYS ID 2 */ | |
3520 | rc = (dev->dev_addr[2] << 10) & 0xFFFF; | |
3521 | break; | |
3522 | case MII_ADVERTISE: /* Advertisement control reg */ | |
3523 | rc = ADVERTISE_ALL; | |
3524 | break; | |
3525 | case MII_LPA: /* Link partner ability reg */ | |
3526 | rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL | | |
3527 | LPA_100BASE4 | LPA_LPACK; | |
3528 | break; | |
3529 | case MII_EXPANSION: /* Expansion register */ | |
3530 | break; | |
3531 | case MII_DCOUNTER: /* disconnect counter */ | |
3532 | break; | |
3533 | case MII_FCSCOUNTER: /* false carrier counter */ | |
3534 | break; | |
3535 | case MII_NWAYTEST: /* N-way auto-neg test register */ | |
3536 | break; | |
3537 | case MII_RERRCOUNTER: /* rx error counter */ | |
3538 | rc = card->stats.rx_errors; | |
3539 | break; | |
3540 | case MII_SREVISION: /* silicon revision */ | |
3541 | break; | |
3542 | case MII_RESV1: /* reserved 1 */ | |
3543 | break; | |
3544 | case MII_LBRERROR: /* loopback, rx, bypass error */ | |
3545 | break; | |
3546 | case MII_PHYADDR: /* physical address */ | |
3547 | break; | |
3548 | case MII_RESV2: /* reserved 2 */ | |
3549 | break; | |
3550 | case MII_TPISTATUS: /* TPI status for 10mbps */ | |
3551 | break; | |
3552 | case MII_NCONFIG: /* network interface config */ | |
3553 | break; | |
3554 | default: | |
3555 | break; | |
3556 | } | |
3557 | return rc; | |
3558 | } | |
3559 | EXPORT_SYMBOL_GPL(qeth_mdio_read); | |
3560 | ||
3561 | static int qeth_send_ipa_snmp_cmd(struct qeth_card *card, | |
3562 | struct qeth_cmd_buffer *iob, int len, | |
3563 | int (*reply_cb)(struct qeth_card *, struct qeth_reply *, | |
3564 | unsigned long), | |
3565 | void *reply_param) | |
3566 | { | |
3567 | u16 s1, s2; | |
3568 | ||
d11ba0c4 | 3569 | QETH_DBF_TEXT(TRACE, 4, "sendsnmp"); |
4a71df50 FB |
3570 | |
3571 | memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); | |
3572 | memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), | |
3573 | &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); | |
3574 | /* adjust PDU length fields in IPA_PDU_HEADER */ | |
3575 | s1 = (u32) IPA_PDU_HEADER_SIZE + len; | |
3576 | s2 = (u32) len; | |
3577 | memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); | |
3578 | memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); | |
3579 | memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); | |
3580 | memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); | |
3581 | return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob, | |
3582 | reply_cb, reply_param); | |
3583 | } | |
3584 | ||
3585 | static int qeth_snmp_command_cb(struct qeth_card *card, | |
3586 | struct qeth_reply *reply, unsigned long sdata) | |
3587 | { | |
3588 | struct qeth_ipa_cmd *cmd; | |
3589 | struct qeth_arp_query_info *qinfo; | |
3590 | struct qeth_snmp_cmd *snmp; | |
3591 | unsigned char *data; | |
3592 | __u16 data_len; | |
3593 | ||
d11ba0c4 | 3594 | QETH_DBF_TEXT(TRACE, 3, "snpcmdcb"); |
4a71df50 FB |
3595 | |
3596 | cmd = (struct qeth_ipa_cmd *) sdata; | |
3597 | data = (unsigned char *)((char *)cmd - reply->offset); | |
3598 | qinfo = (struct qeth_arp_query_info *) reply->param; | |
3599 | snmp = &cmd->data.setadapterparms.data.snmp; | |
3600 | ||
3601 | if (cmd->hdr.return_code) { | |
d11ba0c4 | 3602 | QETH_DBF_TEXT_(TRACE, 4, "scer1%i", cmd->hdr.return_code); |
4a71df50 FB |
3603 | return 0; |
3604 | } | |
3605 | if (cmd->data.setadapterparms.hdr.return_code) { | |
3606 | cmd->hdr.return_code = | |
3607 | cmd->data.setadapterparms.hdr.return_code; | |
d11ba0c4 | 3608 | QETH_DBF_TEXT_(TRACE, 4, "scer2%i", cmd->hdr.return_code); |
4a71df50 FB |
3609 | return 0; |
3610 | } | |
3611 | data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data)); | |
3612 | if (cmd->data.setadapterparms.hdr.seq_no == 1) | |
3613 | data_len -= (__u16)((char *)&snmp->data - (char *)cmd); | |
3614 | else | |
3615 | data_len -= (__u16)((char *)&snmp->request - (char *)cmd); | |
3616 | ||
3617 | /* check if there is enough room in userspace */ | |
3618 | if ((qinfo->udata_len - qinfo->udata_offset) < data_len) { | |
d11ba0c4 | 3619 | QETH_DBF_TEXT_(TRACE, 4, "scer3%i", -ENOMEM); |
4a71df50 FB |
3620 | cmd->hdr.return_code = -ENOMEM; |
3621 | return 0; | |
3622 | } | |
d11ba0c4 | 3623 | QETH_DBF_TEXT_(TRACE, 4, "snore%i", |
4a71df50 | 3624 | cmd->data.setadapterparms.hdr.used_total); |
d11ba0c4 | 3625 | QETH_DBF_TEXT_(TRACE, 4, "sseqn%i", |
4a71df50 FB |
3626 | cmd->data.setadapterparms.hdr.seq_no); |
3627 | /*copy entries to user buffer*/ | |
3628 | if (cmd->data.setadapterparms.hdr.seq_no == 1) { | |
3629 | memcpy(qinfo->udata + qinfo->udata_offset, | |
3630 | (char *)snmp, | |
3631 | data_len + offsetof(struct qeth_snmp_cmd, data)); | |
3632 | qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data); | |
3633 | } else { | |
3634 | memcpy(qinfo->udata + qinfo->udata_offset, | |
3635 | (char *)&snmp->request, data_len); | |
3636 | } | |
3637 | qinfo->udata_offset += data_len; | |
3638 | /* check if all replies received ... */ | |
d11ba0c4 | 3639 | QETH_DBF_TEXT_(TRACE, 4, "srtot%i", |
4a71df50 | 3640 | cmd->data.setadapterparms.hdr.used_total); |
d11ba0c4 | 3641 | QETH_DBF_TEXT_(TRACE, 4, "srseq%i", |
4a71df50 FB |
3642 | cmd->data.setadapterparms.hdr.seq_no); |
3643 | if (cmd->data.setadapterparms.hdr.seq_no < | |
3644 | cmd->data.setadapterparms.hdr.used_total) | |
3645 | return 1; | |
3646 | return 0; | |
3647 | } | |
3648 | ||
3649 | int qeth_snmp_command(struct qeth_card *card, char __user *udata) | |
3650 | { | |
3651 | struct qeth_cmd_buffer *iob; | |
3652 | struct qeth_ipa_cmd *cmd; | |
3653 | struct qeth_snmp_ureq *ureq; | |
3654 | int req_len; | |
3655 | struct qeth_arp_query_info qinfo = {0, }; | |
3656 | int rc = 0; | |
3657 | ||
d11ba0c4 | 3658 | QETH_DBF_TEXT(TRACE, 3, "snmpcmd"); |
4a71df50 FB |
3659 | |
3660 | if (card->info.guestlan) | |
3661 | return -EOPNOTSUPP; | |
3662 | ||
3663 | if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) && | |
3664 | (!card->options.layer2)) { | |
3665 | PRINT_WARN("SNMP Query MIBS not supported " | |
3666 | "on %s!\n", QETH_CARD_IFNAME(card)); | |
3667 | return -EOPNOTSUPP; | |
3668 | } | |
3669 | /* skip 4 bytes (data_len struct member) to get req_len */ | |
3670 | if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int))) | |
3671 | return -EFAULT; | |
3672 | ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL); | |
3673 | if (!ureq) { | |
d11ba0c4 | 3674 | QETH_DBF_TEXT(TRACE, 2, "snmpnome"); |
4a71df50 FB |
3675 | return -ENOMEM; |
3676 | } | |
3677 | if (copy_from_user(ureq, udata, | |
3678 | req_len + sizeof(struct qeth_snmp_ureq_hdr))) { | |
3679 | kfree(ureq); | |
3680 | return -EFAULT; | |
3681 | } | |
3682 | qinfo.udata_len = ureq->hdr.data_len; | |
3683 | qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL); | |
3684 | if (!qinfo.udata) { | |
3685 | kfree(ureq); | |
3686 | return -ENOMEM; | |
3687 | } | |
3688 | qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr); | |
3689 | ||
3690 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL, | |
3691 | QETH_SNMP_SETADP_CMDLENGTH + req_len); | |
3692 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
3693 | memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len); | |
3694 | rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len, | |
3695 | qeth_snmp_command_cb, (void *)&qinfo); | |
3696 | if (rc) | |
3697 | PRINT_WARN("SNMP command failed on %s: (0x%x)\n", | |
3698 | QETH_CARD_IFNAME(card), rc); | |
3699 | else { | |
3700 | if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) | |
3701 | rc = -EFAULT; | |
3702 | } | |
3703 | ||
3704 | kfree(ureq); | |
3705 | kfree(qinfo.udata); | |
3706 | return rc; | |
3707 | } | |
3708 | EXPORT_SYMBOL_GPL(qeth_snmp_command); | |
3709 | ||
3710 | static inline int qeth_get_qdio_q_format(struct qeth_card *card) | |
3711 | { | |
3712 | switch (card->info.type) { | |
3713 | case QETH_CARD_TYPE_IQD: | |
3714 | return 2; | |
3715 | default: | |
3716 | return 0; | |
3717 | } | |
3718 | } | |
3719 | ||
3720 | static int qeth_qdio_establish(struct qeth_card *card) | |
3721 | { | |
3722 | struct qdio_initialize init_data; | |
3723 | char *qib_param_field; | |
3724 | struct qdio_buffer **in_sbal_ptrs; | |
3725 | struct qdio_buffer **out_sbal_ptrs; | |
3726 | int i, j, k; | |
3727 | int rc = 0; | |
3728 | ||
d11ba0c4 | 3729 | QETH_DBF_TEXT(SETUP, 2, "qdioest"); |
4a71df50 FB |
3730 | |
3731 | qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char), | |
3732 | GFP_KERNEL); | |
3733 | if (!qib_param_field) | |
3734 | return -ENOMEM; | |
3735 | ||
3736 | qeth_create_qib_param_field(card, qib_param_field); | |
3737 | qeth_create_qib_param_field_blkt(card, qib_param_field); | |
3738 | ||
3739 | in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *), | |
3740 | GFP_KERNEL); | |
3741 | if (!in_sbal_ptrs) { | |
3742 | kfree(qib_param_field); | |
3743 | return -ENOMEM; | |
3744 | } | |
3745 | for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) | |
3746 | in_sbal_ptrs[i] = (struct qdio_buffer *) | |
3747 | virt_to_phys(card->qdio.in_q->bufs[i].buffer); | |
3748 | ||
3749 | out_sbal_ptrs = | |
3750 | kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q * | |
3751 | sizeof(void *), GFP_KERNEL); | |
3752 | if (!out_sbal_ptrs) { | |
3753 | kfree(in_sbal_ptrs); | |
3754 | kfree(qib_param_field); | |
3755 | return -ENOMEM; | |
3756 | } | |
3757 | for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i) | |
3758 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) { | |
3759 | out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys( | |
3760 | card->qdio.out_qs[i]->bufs[j].buffer); | |
3761 | } | |
3762 | ||
3763 | memset(&init_data, 0, sizeof(struct qdio_initialize)); | |
3764 | init_data.cdev = CARD_DDEV(card); | |
3765 | init_data.q_format = qeth_get_qdio_q_format(card); | |
3766 | init_data.qib_param_field_format = 0; | |
3767 | init_data.qib_param_field = qib_param_field; | |
3768 | init_data.min_input_threshold = QETH_MIN_INPUT_THRESHOLD; | |
3769 | init_data.max_input_threshold = QETH_MAX_INPUT_THRESHOLD; | |
3770 | init_data.min_output_threshold = QETH_MIN_OUTPUT_THRESHOLD; | |
3771 | init_data.max_output_threshold = QETH_MAX_OUTPUT_THRESHOLD; | |
3772 | init_data.no_input_qs = 1; | |
3773 | init_data.no_output_qs = card->qdio.no_out_queues; | |
3774 | init_data.input_handler = card->discipline.input_handler; | |
3775 | init_data.output_handler = card->discipline.output_handler; | |
3776 | init_data.int_parm = (unsigned long) card; | |
3777 | init_data.flags = QDIO_INBOUND_0COPY_SBALS | | |
3778 | QDIO_OUTBOUND_0COPY_SBALS | | |
3779 | QDIO_USE_OUTBOUND_PCIS; | |
3780 | init_data.input_sbal_addr_array = (void **) in_sbal_ptrs; | |
3781 | init_data.output_sbal_addr_array = (void **) out_sbal_ptrs; | |
3782 | ||
3783 | if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED, | |
3784 | QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) { | |
3785 | rc = qdio_initialize(&init_data); | |
3786 | if (rc) | |
3787 | atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); | |
3788 | } | |
3789 | kfree(out_sbal_ptrs); | |
3790 | kfree(in_sbal_ptrs); | |
3791 | kfree(qib_param_field); | |
3792 | return rc; | |
3793 | } | |
3794 | ||
3795 | static void qeth_core_free_card(struct qeth_card *card) | |
3796 | { | |
3797 | ||
d11ba0c4 PT |
3798 | QETH_DBF_TEXT(SETUP, 2, "freecrd"); |
3799 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 FB |
3800 | qeth_clean_channel(&card->read); |
3801 | qeth_clean_channel(&card->write); | |
3802 | if (card->dev) | |
3803 | free_netdev(card->dev); | |
3804 | kfree(card->ip_tbd_list); | |
3805 | qeth_free_qdio_buffers(card); | |
3806 | kfree(card); | |
3807 | } | |
3808 | ||
3809 | static struct ccw_device_id qeth_ids[] = { | |
3810 | {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE}, | |
3811 | {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD}, | |
3812 | {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN}, | |
3813 | {}, | |
3814 | }; | |
3815 | MODULE_DEVICE_TABLE(ccw, qeth_ids); | |
3816 | ||
3817 | static struct ccw_driver qeth_ccw_driver = { | |
3818 | .name = "qeth", | |
3819 | .ids = qeth_ids, | |
3820 | .probe = ccwgroup_probe_ccwdev, | |
3821 | .remove = ccwgroup_remove_ccwdev, | |
3822 | }; | |
3823 | ||
3824 | static int qeth_core_driver_group(const char *buf, struct device *root_dev, | |
3825 | unsigned long driver_id) | |
3826 | { | |
022b660a UB |
3827 | return ccwgroup_create_from_string(root_dev, driver_id, |
3828 | &qeth_ccw_driver, 3, buf); | |
4a71df50 FB |
3829 | } |
3830 | ||
3831 | int qeth_core_hardsetup_card(struct qeth_card *card) | |
3832 | { | |
3833 | int retries = 3; | |
3834 | int mpno; | |
3835 | int rc; | |
3836 | ||
d11ba0c4 | 3837 | QETH_DBF_TEXT(SETUP, 2, "hrdsetup"); |
4a71df50 FB |
3838 | atomic_set(&card->force_alloc_skb, 0); |
3839 | retry: | |
3840 | if (retries < 3) { | |
3841 | PRINT_WARN("Retrying to do IDX activates.\n"); | |
3842 | ccw_device_set_offline(CARD_DDEV(card)); | |
3843 | ccw_device_set_offline(CARD_WDEV(card)); | |
3844 | ccw_device_set_offline(CARD_RDEV(card)); | |
3845 | ccw_device_set_online(CARD_RDEV(card)); | |
3846 | ccw_device_set_online(CARD_WDEV(card)); | |
3847 | ccw_device_set_online(CARD_DDEV(card)); | |
3848 | } | |
3849 | rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD); | |
3850 | if (rc == -ERESTARTSYS) { | |
d11ba0c4 | 3851 | QETH_DBF_TEXT(SETUP, 2, "break1"); |
4a71df50 FB |
3852 | return rc; |
3853 | } else if (rc) { | |
d11ba0c4 | 3854 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
3855 | if (--retries < 0) |
3856 | goto out; | |
3857 | else | |
3858 | goto retry; | |
3859 | } | |
3860 | ||
3861 | rc = qeth_get_unitaddr(card); | |
3862 | if (rc) { | |
d11ba0c4 | 3863 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
4a71df50 FB |
3864 | return rc; |
3865 | } | |
3866 | ||
3867 | mpno = QETH_MAX_PORTNO; | |
3868 | if (card->info.portno > mpno) { | |
3869 | PRINT_ERR("Device %s does not offer port number %d \n.", | |
3870 | CARD_BUS_ID(card), card->info.portno); | |
3871 | rc = -ENODEV; | |
3872 | goto out; | |
3873 | } | |
3874 | qeth_init_tokens(card); | |
3875 | qeth_init_func_level(card); | |
3876 | rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb); | |
3877 | if (rc == -ERESTARTSYS) { | |
d11ba0c4 | 3878 | QETH_DBF_TEXT(SETUP, 2, "break2"); |
4a71df50 FB |
3879 | return rc; |
3880 | } else if (rc) { | |
d11ba0c4 | 3881 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
4a71df50 FB |
3882 | if (--retries < 0) |
3883 | goto out; | |
3884 | else | |
3885 | goto retry; | |
3886 | } | |
3887 | rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb); | |
3888 | if (rc == -ERESTARTSYS) { | |
d11ba0c4 | 3889 | QETH_DBF_TEXT(SETUP, 2, "break3"); |
4a71df50 FB |
3890 | return rc; |
3891 | } else if (rc) { | |
d11ba0c4 | 3892 | QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); |
4a71df50 FB |
3893 | if (--retries < 0) |
3894 | goto out; | |
3895 | else | |
3896 | goto retry; | |
3897 | } | |
3898 | rc = qeth_mpc_initialize(card); | |
3899 | if (rc) { | |
d11ba0c4 | 3900 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); |
4a71df50 FB |
3901 | goto out; |
3902 | } | |
3903 | return 0; | |
3904 | out: | |
3905 | PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc); | |
3906 | return rc; | |
3907 | } | |
3908 | EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card); | |
3909 | ||
3910 | static inline int qeth_create_skb_frag(struct qdio_buffer_element *element, | |
3911 | struct sk_buff **pskb, int offset, int *pfrag, int data_len) | |
3912 | { | |
3913 | struct page *page = virt_to_page(element->addr); | |
3914 | if (*pskb == NULL) { | |
3915 | /* the upper protocol layers assume that there is data in the | |
3916 | * skb itself. Copy a small amount (64 bytes) to make them | |
3917 | * happy. */ | |
3918 | *pskb = dev_alloc_skb(64 + ETH_HLEN); | |
3919 | if (!(*pskb)) | |
3920 | return -ENOMEM; | |
3921 | skb_reserve(*pskb, ETH_HLEN); | |
3922 | if (data_len <= 64) { | |
3923 | memcpy(skb_put(*pskb, data_len), element->addr + offset, | |
3924 | data_len); | |
3925 | } else { | |
3926 | get_page(page); | |
3927 | memcpy(skb_put(*pskb, 64), element->addr + offset, 64); | |
3928 | skb_fill_page_desc(*pskb, *pfrag, page, offset + 64, | |
3929 | data_len - 64); | |
3930 | (*pskb)->data_len += data_len - 64; | |
3931 | (*pskb)->len += data_len - 64; | |
3932 | (*pskb)->truesize += data_len - 64; | |
3933 | (*pfrag)++; | |
3934 | } | |
3935 | } else { | |
3936 | get_page(page); | |
3937 | skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len); | |
3938 | (*pskb)->data_len += data_len; | |
3939 | (*pskb)->len += data_len; | |
3940 | (*pskb)->truesize += data_len; | |
3941 | (*pfrag)++; | |
3942 | } | |
3943 | return 0; | |
3944 | } | |
3945 | ||
3946 | struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card, | |
3947 | struct qdio_buffer *buffer, | |
3948 | struct qdio_buffer_element **__element, int *__offset, | |
3949 | struct qeth_hdr **hdr) | |
3950 | { | |
3951 | struct qdio_buffer_element *element = *__element; | |
3952 | int offset = *__offset; | |
3953 | struct sk_buff *skb = NULL; | |
3954 | int skb_len; | |
3955 | void *data_ptr; | |
3956 | int data_len; | |
3957 | int headroom = 0; | |
3958 | int use_rx_sg = 0; | |
3959 | int frag = 0; | |
3960 | ||
d11ba0c4 | 3961 | QETH_DBF_TEXT(TRACE, 6, "nextskb"); |
4a71df50 FB |
3962 | /* qeth_hdr must not cross element boundaries */ |
3963 | if (element->length < offset + sizeof(struct qeth_hdr)) { | |
3964 | if (qeth_is_last_sbale(element)) | |
3965 | return NULL; | |
3966 | element++; | |
3967 | offset = 0; | |
3968 | if (element->length < sizeof(struct qeth_hdr)) | |
3969 | return NULL; | |
3970 | } | |
3971 | *hdr = element->addr + offset; | |
3972 | ||
3973 | offset += sizeof(struct qeth_hdr); | |
3974 | if (card->options.layer2) { | |
3975 | if (card->info.type == QETH_CARD_TYPE_OSN) { | |
3976 | skb_len = (*hdr)->hdr.osn.pdu_length; | |
3977 | headroom = sizeof(struct qeth_hdr); | |
3978 | } else { | |
3979 | skb_len = (*hdr)->hdr.l2.pkt_length; | |
3980 | } | |
3981 | } else { | |
3982 | skb_len = (*hdr)->hdr.l3.length; | |
b403e685 FB |
3983 | if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) || |
3984 | (card->info.link_type == QETH_LINK_TYPE_HSTR)) | |
3985 | headroom = TR_HLEN; | |
3986 | else | |
3987 | headroom = ETH_HLEN; | |
4a71df50 FB |
3988 | } |
3989 | ||
3990 | if (!skb_len) | |
3991 | return NULL; | |
3992 | ||
3993 | if ((skb_len >= card->options.rx_sg_cb) && | |
3994 | (!(card->info.type == QETH_CARD_TYPE_OSN)) && | |
3995 | (!atomic_read(&card->force_alloc_skb))) { | |
3996 | use_rx_sg = 1; | |
3997 | } else { | |
3998 | skb = dev_alloc_skb(skb_len + headroom); | |
3999 | if (!skb) | |
4000 | goto no_mem; | |
4001 | if (headroom) | |
4002 | skb_reserve(skb, headroom); | |
4003 | } | |
4004 | ||
4005 | data_ptr = element->addr + offset; | |
4006 | while (skb_len) { | |
4007 | data_len = min(skb_len, (int)(element->length - offset)); | |
4008 | if (data_len) { | |
4009 | if (use_rx_sg) { | |
4010 | if (qeth_create_skb_frag(element, &skb, offset, | |
4011 | &frag, data_len)) | |
4012 | goto no_mem; | |
4013 | } else { | |
4014 | memcpy(skb_put(skb, data_len), data_ptr, | |
4015 | data_len); | |
4016 | } | |
4017 | } | |
4018 | skb_len -= data_len; | |
4019 | if (skb_len) { | |
4020 | if (qeth_is_last_sbale(element)) { | |
d11ba0c4 PT |
4021 | QETH_DBF_TEXT(TRACE, 4, "unexeob"); |
4022 | QETH_DBF_TEXT_(TRACE, 4, "%s", | |
4a71df50 | 4023 | CARD_BUS_ID(card)); |
d11ba0c4 PT |
4024 | QETH_DBF_TEXT(QERR, 2, "unexeob"); |
4025 | QETH_DBF_TEXT_(QERR, 2, "%s", | |
4a71df50 | 4026 | CARD_BUS_ID(card)); |
d11ba0c4 | 4027 | QETH_DBF_HEX(MISC, 4, buffer, sizeof(*buffer)); |
4a71df50 FB |
4028 | dev_kfree_skb_any(skb); |
4029 | card->stats.rx_errors++; | |
4030 | return NULL; | |
4031 | } | |
4032 | element++; | |
4033 | offset = 0; | |
4034 | data_ptr = element->addr; | |
4035 | } else { | |
4036 | offset += data_len; | |
4037 | } | |
4038 | } | |
4039 | *__element = element; | |
4040 | *__offset = offset; | |
4041 | if (use_rx_sg && card->options.performance_stats) { | |
4042 | card->perf_stats.sg_skbs_rx++; | |
4043 | card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags; | |
4044 | } | |
4045 | return skb; | |
4046 | no_mem: | |
4047 | if (net_ratelimit()) { | |
4048 | PRINT_WARN("No memory for packet received on %s.\n", | |
4049 | QETH_CARD_IFNAME(card)); | |
d11ba0c4 PT |
4050 | QETH_DBF_TEXT(TRACE, 2, "noskbmem"); |
4051 | QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_BUS_ID(card)); | |
4a71df50 FB |
4052 | } |
4053 | card->stats.rx_dropped++; | |
4054 | return NULL; | |
4055 | } | |
4056 | EXPORT_SYMBOL_GPL(qeth_core_get_next_skb); | |
4057 | ||
4058 | static void qeth_unregister_dbf_views(void) | |
4059 | { | |
d11ba0c4 PT |
4060 | int x; |
4061 | for (x = 0; x < QETH_DBF_INFOS; x++) { | |
4062 | debug_unregister(qeth_dbf[x].id); | |
4063 | qeth_dbf[x].id = NULL; | |
4064 | } | |
4a71df50 FB |
4065 | } |
4066 | ||
cd023216 PT |
4067 | void qeth_dbf_longtext(enum qeth_dbf_names dbf_nix, int level, char *text, ...) |
4068 | { | |
4069 | char dbf_txt_buf[32]; | |
4070 | ||
4071 | if (level > (qeth_dbf[dbf_nix].id)->level) | |
4072 | return; | |
4073 | snprintf(dbf_txt_buf, sizeof(dbf_txt_buf), text); | |
4074 | debug_text_event(qeth_dbf[dbf_nix].id, level, dbf_txt_buf); | |
4075 | ||
4076 | } | |
4077 | EXPORT_SYMBOL_GPL(qeth_dbf_longtext); | |
4078 | ||
4a71df50 FB |
4079 | static int qeth_register_dbf_views(void) |
4080 | { | |
d11ba0c4 PT |
4081 | int ret; |
4082 | int x; | |
4083 | ||
4084 | for (x = 0; x < QETH_DBF_INFOS; x++) { | |
4085 | /* register the areas */ | |
4086 | qeth_dbf[x].id = debug_register(qeth_dbf[x].name, | |
4087 | qeth_dbf[x].pages, | |
4088 | qeth_dbf[x].areas, | |
4089 | qeth_dbf[x].len); | |
4090 | if (qeth_dbf[x].id == NULL) { | |
4091 | qeth_unregister_dbf_views(); | |
4092 | return -ENOMEM; | |
4093 | } | |
4a71df50 | 4094 | |
d11ba0c4 PT |
4095 | /* register a view */ |
4096 | ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view); | |
4097 | if (ret) { | |
4098 | qeth_unregister_dbf_views(); | |
4099 | return ret; | |
4100 | } | |
4a71df50 | 4101 | |
d11ba0c4 PT |
4102 | /* set a passing level */ |
4103 | debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level); | |
4104 | } | |
4a71df50 FB |
4105 | |
4106 | return 0; | |
4107 | } | |
4108 | ||
4109 | int qeth_core_load_discipline(struct qeth_card *card, | |
4110 | enum qeth_discipline_id discipline) | |
4111 | { | |
4112 | int rc = 0; | |
4113 | switch (discipline) { | |
4114 | case QETH_DISCIPLINE_LAYER3: | |
4115 | card->discipline.ccwgdriver = try_then_request_module( | |
4116 | symbol_get(qeth_l3_ccwgroup_driver), | |
4117 | "qeth_l3"); | |
4118 | break; | |
4119 | case QETH_DISCIPLINE_LAYER2: | |
4120 | card->discipline.ccwgdriver = try_then_request_module( | |
4121 | symbol_get(qeth_l2_ccwgroup_driver), | |
4122 | "qeth_l2"); | |
4123 | break; | |
4124 | } | |
4125 | if (!card->discipline.ccwgdriver) { | |
4126 | PRINT_ERR("Support for discipline %d not present\n", | |
4127 | discipline); | |
4128 | rc = -EINVAL; | |
4129 | } | |
4130 | return rc; | |
4131 | } | |
4132 | ||
4133 | void qeth_core_free_discipline(struct qeth_card *card) | |
4134 | { | |
4135 | if (card->options.layer2) | |
4136 | symbol_put(qeth_l2_ccwgroup_driver); | |
4137 | else | |
4138 | symbol_put(qeth_l3_ccwgroup_driver); | |
4139 | card->discipline.ccwgdriver = NULL; | |
4140 | } | |
4141 | ||
4142 | static int qeth_core_probe_device(struct ccwgroup_device *gdev) | |
4143 | { | |
4144 | struct qeth_card *card; | |
4145 | struct device *dev; | |
4146 | int rc; | |
4147 | unsigned long flags; | |
4148 | ||
d11ba0c4 | 4149 | QETH_DBF_TEXT(SETUP, 2, "probedev"); |
4a71df50 FB |
4150 | |
4151 | dev = &gdev->dev; | |
4152 | if (!get_device(dev)) | |
4153 | return -ENODEV; | |
4154 | ||
d11ba0c4 | 4155 | QETH_DBF_TEXT_(SETUP, 2, "%s", gdev->dev.bus_id); |
4a71df50 FB |
4156 | |
4157 | card = qeth_alloc_card(); | |
4158 | if (!card) { | |
d11ba0c4 | 4159 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM); |
4a71df50 FB |
4160 | rc = -ENOMEM; |
4161 | goto err_dev; | |
4162 | } | |
4163 | card->read.ccwdev = gdev->cdev[0]; | |
4164 | card->write.ccwdev = gdev->cdev[1]; | |
4165 | card->data.ccwdev = gdev->cdev[2]; | |
4166 | dev_set_drvdata(&gdev->dev, card); | |
4167 | card->gdev = gdev; | |
4168 | gdev->cdev[0]->handler = qeth_irq; | |
4169 | gdev->cdev[1]->handler = qeth_irq; | |
4170 | gdev->cdev[2]->handler = qeth_irq; | |
4171 | ||
4172 | rc = qeth_determine_card_type(card); | |
4173 | if (rc) { | |
4174 | PRINT_WARN("%s: not a valid card type\n", __func__); | |
d11ba0c4 | 4175 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
4a71df50 FB |
4176 | goto err_card; |
4177 | } | |
4178 | rc = qeth_setup_card(card); | |
4179 | if (rc) { | |
d11ba0c4 | 4180 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
4a71df50 FB |
4181 | goto err_card; |
4182 | } | |
4183 | ||
4184 | if (card->info.type == QETH_CARD_TYPE_OSN) { | |
4185 | rc = qeth_core_create_osn_attributes(dev); | |
4186 | if (rc) | |
4187 | goto err_card; | |
4188 | rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2); | |
4189 | if (rc) { | |
4190 | qeth_core_remove_osn_attributes(dev); | |
4191 | goto err_card; | |
4192 | } | |
4193 | rc = card->discipline.ccwgdriver->probe(card->gdev); | |
4194 | if (rc) { | |
4195 | qeth_core_free_discipline(card); | |
4196 | qeth_core_remove_osn_attributes(dev); | |
4197 | goto err_card; | |
4198 | } | |
4199 | } else { | |
4200 | rc = qeth_core_create_device_attributes(dev); | |
4201 | if (rc) | |
4202 | goto err_card; | |
4203 | } | |
4204 | ||
4205 | write_lock_irqsave(&qeth_core_card_list.rwlock, flags); | |
4206 | list_add_tail(&card->list, &qeth_core_card_list.list); | |
4207 | write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); | |
4208 | return 0; | |
4209 | ||
4210 | err_card: | |
4211 | qeth_core_free_card(card); | |
4212 | err_dev: | |
4213 | put_device(dev); | |
4214 | return rc; | |
4215 | } | |
4216 | ||
4217 | static void qeth_core_remove_device(struct ccwgroup_device *gdev) | |
4218 | { | |
4219 | unsigned long flags; | |
4220 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
4221 | ||
4222 | if (card->discipline.ccwgdriver) { | |
4223 | card->discipline.ccwgdriver->remove(gdev); | |
4224 | qeth_core_free_discipline(card); | |
4225 | } | |
4226 | ||
4227 | if (card->info.type == QETH_CARD_TYPE_OSN) { | |
4228 | qeth_core_remove_osn_attributes(&gdev->dev); | |
4229 | } else { | |
4230 | qeth_core_remove_device_attributes(&gdev->dev); | |
4231 | } | |
4232 | write_lock_irqsave(&qeth_core_card_list.rwlock, flags); | |
4233 | list_del(&card->list); | |
4234 | write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); | |
4235 | qeth_core_free_card(card); | |
4236 | dev_set_drvdata(&gdev->dev, NULL); | |
4237 | put_device(&gdev->dev); | |
4238 | return; | |
4239 | } | |
4240 | ||
4241 | static int qeth_core_set_online(struct ccwgroup_device *gdev) | |
4242 | { | |
4243 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
4244 | int rc = 0; | |
4245 | int def_discipline; | |
4246 | ||
4247 | if (!card->discipline.ccwgdriver) { | |
4248 | if (card->info.type == QETH_CARD_TYPE_IQD) | |
4249 | def_discipline = QETH_DISCIPLINE_LAYER3; | |
4250 | else | |
4251 | def_discipline = QETH_DISCIPLINE_LAYER2; | |
4252 | rc = qeth_core_load_discipline(card, def_discipline); | |
4253 | if (rc) | |
4254 | goto err; | |
4255 | rc = card->discipline.ccwgdriver->probe(card->gdev); | |
4256 | if (rc) | |
4257 | goto err; | |
4258 | } | |
4259 | rc = card->discipline.ccwgdriver->set_online(gdev); | |
4260 | err: | |
4261 | return rc; | |
4262 | } | |
4263 | ||
4264 | static int qeth_core_set_offline(struct ccwgroup_device *gdev) | |
4265 | { | |
4266 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
4267 | return card->discipline.ccwgdriver->set_offline(gdev); | |
4268 | } | |
4269 | ||
4270 | static void qeth_core_shutdown(struct ccwgroup_device *gdev) | |
4271 | { | |
4272 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
4273 | if (card->discipline.ccwgdriver && | |
4274 | card->discipline.ccwgdriver->shutdown) | |
4275 | card->discipline.ccwgdriver->shutdown(gdev); | |
4276 | } | |
4277 | ||
4278 | static struct ccwgroup_driver qeth_core_ccwgroup_driver = { | |
4279 | .owner = THIS_MODULE, | |
4280 | .name = "qeth", | |
4281 | .driver_id = 0xD8C5E3C8, | |
4282 | .probe = qeth_core_probe_device, | |
4283 | .remove = qeth_core_remove_device, | |
4284 | .set_online = qeth_core_set_online, | |
4285 | .set_offline = qeth_core_set_offline, | |
4286 | .shutdown = qeth_core_shutdown, | |
4287 | }; | |
4288 | ||
4289 | static ssize_t | |
4290 | qeth_core_driver_group_store(struct device_driver *ddrv, const char *buf, | |
4291 | size_t count) | |
4292 | { | |
4293 | int err; | |
4294 | err = qeth_core_driver_group(buf, qeth_core_root_dev, | |
4295 | qeth_core_ccwgroup_driver.driver_id); | |
4296 | if (err) | |
4297 | return err; | |
4298 | else | |
4299 | return count; | |
4300 | } | |
4301 | ||
4302 | static DRIVER_ATTR(group, 0200, NULL, qeth_core_driver_group_store); | |
4303 | ||
4304 | static struct { | |
4305 | const char str[ETH_GSTRING_LEN]; | |
4306 | } qeth_ethtool_stats_keys[] = { | |
4307 | /* 0 */{"rx skbs"}, | |
4308 | {"rx buffers"}, | |
4309 | {"tx skbs"}, | |
4310 | {"tx buffers"}, | |
4311 | {"tx skbs no packing"}, | |
4312 | {"tx buffers no packing"}, | |
4313 | {"tx skbs packing"}, | |
4314 | {"tx buffers packing"}, | |
4315 | {"tx sg skbs"}, | |
4316 | {"tx sg frags"}, | |
4317 | /* 10 */{"rx sg skbs"}, | |
4318 | {"rx sg frags"}, | |
4319 | {"rx sg page allocs"}, | |
4320 | {"tx large kbytes"}, | |
4321 | {"tx large count"}, | |
4322 | {"tx pk state ch n->p"}, | |
4323 | {"tx pk state ch p->n"}, | |
4324 | {"tx pk watermark low"}, | |
4325 | {"tx pk watermark high"}, | |
4326 | {"queue 0 buffer usage"}, | |
4327 | /* 20 */{"queue 1 buffer usage"}, | |
4328 | {"queue 2 buffer usage"}, | |
4329 | {"queue 3 buffer usage"}, | |
4330 | {"rx handler time"}, | |
4331 | {"rx handler count"}, | |
4332 | {"rx do_QDIO time"}, | |
4333 | {"rx do_QDIO count"}, | |
4334 | {"tx handler time"}, | |
4335 | {"tx handler count"}, | |
4336 | {"tx time"}, | |
4337 | /* 30 */{"tx count"}, | |
4338 | {"tx do_QDIO time"}, | |
4339 | {"tx do_QDIO count"}, | |
4340 | }; | |
4341 | ||
4342 | int qeth_core_get_stats_count(struct net_device *dev) | |
4343 | { | |
4344 | return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN); | |
4345 | } | |
4346 | EXPORT_SYMBOL_GPL(qeth_core_get_stats_count); | |
4347 | ||
4348 | void qeth_core_get_ethtool_stats(struct net_device *dev, | |
4349 | struct ethtool_stats *stats, u64 *data) | |
4350 | { | |
4351 | struct qeth_card *card = netdev_priv(dev); | |
4352 | data[0] = card->stats.rx_packets - | |
4353 | card->perf_stats.initial_rx_packets; | |
4354 | data[1] = card->perf_stats.bufs_rec; | |
4355 | data[2] = card->stats.tx_packets - | |
4356 | card->perf_stats.initial_tx_packets; | |
4357 | data[3] = card->perf_stats.bufs_sent; | |
4358 | data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets | |
4359 | - card->perf_stats.skbs_sent_pack; | |
4360 | data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack; | |
4361 | data[6] = card->perf_stats.skbs_sent_pack; | |
4362 | data[7] = card->perf_stats.bufs_sent_pack; | |
4363 | data[8] = card->perf_stats.sg_skbs_sent; | |
4364 | data[9] = card->perf_stats.sg_frags_sent; | |
4365 | data[10] = card->perf_stats.sg_skbs_rx; | |
4366 | data[11] = card->perf_stats.sg_frags_rx; | |
4367 | data[12] = card->perf_stats.sg_alloc_page_rx; | |
4368 | data[13] = (card->perf_stats.large_send_bytes >> 10); | |
4369 | data[14] = card->perf_stats.large_send_cnt; | |
4370 | data[15] = card->perf_stats.sc_dp_p; | |
4371 | data[16] = card->perf_stats.sc_p_dp; | |
4372 | data[17] = QETH_LOW_WATERMARK_PACK; | |
4373 | data[18] = QETH_HIGH_WATERMARK_PACK; | |
4374 | data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers); | |
4375 | data[20] = (card->qdio.no_out_queues > 1) ? | |
4376 | atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0; | |
4377 | data[21] = (card->qdio.no_out_queues > 2) ? | |
4378 | atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0; | |
4379 | data[22] = (card->qdio.no_out_queues > 3) ? | |
4380 | atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0; | |
4381 | data[23] = card->perf_stats.inbound_time; | |
4382 | data[24] = card->perf_stats.inbound_cnt; | |
4383 | data[25] = card->perf_stats.inbound_do_qdio_time; | |
4384 | data[26] = card->perf_stats.inbound_do_qdio_cnt; | |
4385 | data[27] = card->perf_stats.outbound_handler_time; | |
4386 | data[28] = card->perf_stats.outbound_handler_cnt; | |
4387 | data[29] = card->perf_stats.outbound_time; | |
4388 | data[30] = card->perf_stats.outbound_cnt; | |
4389 | data[31] = card->perf_stats.outbound_do_qdio_time; | |
4390 | data[32] = card->perf_stats.outbound_do_qdio_cnt; | |
4391 | } | |
4392 | EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats); | |
4393 | ||
4394 | void qeth_core_get_strings(struct net_device *dev, u32 stringset, u8 *data) | |
4395 | { | |
4396 | switch (stringset) { | |
4397 | case ETH_SS_STATS: | |
4398 | memcpy(data, &qeth_ethtool_stats_keys, | |
4399 | sizeof(qeth_ethtool_stats_keys)); | |
4400 | break; | |
4401 | default: | |
4402 | WARN_ON(1); | |
4403 | break; | |
4404 | } | |
4405 | } | |
4406 | EXPORT_SYMBOL_GPL(qeth_core_get_strings); | |
4407 | ||
4408 | void qeth_core_get_drvinfo(struct net_device *dev, | |
4409 | struct ethtool_drvinfo *info) | |
4410 | { | |
4411 | struct qeth_card *card = netdev_priv(dev); | |
4412 | if (card->options.layer2) | |
4413 | strcpy(info->driver, "qeth_l2"); | |
4414 | else | |
4415 | strcpy(info->driver, "qeth_l3"); | |
4416 | ||
4417 | strcpy(info->version, "1.0"); | |
4418 | strcpy(info->fw_version, card->info.mcl_level); | |
4419 | sprintf(info->bus_info, "%s/%s/%s", | |
4420 | CARD_RDEV_ID(card), | |
4421 | CARD_WDEV_ID(card), | |
4422 | CARD_DDEV_ID(card)); | |
4423 | } | |
4424 | EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo); | |
4425 | ||
4426 | static int __init qeth_core_init(void) | |
4427 | { | |
4428 | int rc; | |
4429 | ||
4430 | PRINT_INFO("loading core functions\n"); | |
4431 | INIT_LIST_HEAD(&qeth_core_card_list.list); | |
4432 | rwlock_init(&qeth_core_card_list.rwlock); | |
4433 | ||
4434 | rc = qeth_register_dbf_views(); | |
4435 | if (rc) | |
4436 | goto out_err; | |
4437 | rc = ccw_driver_register(&qeth_ccw_driver); | |
4438 | if (rc) | |
4439 | goto ccw_err; | |
4440 | rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver); | |
4441 | if (rc) | |
4442 | goto ccwgroup_err; | |
4443 | rc = driver_create_file(&qeth_core_ccwgroup_driver.driver, | |
4444 | &driver_attr_group); | |
4445 | if (rc) | |
4446 | goto driver_err; | |
4447 | qeth_core_root_dev = s390_root_dev_register("qeth"); | |
4448 | rc = IS_ERR(qeth_core_root_dev) ? PTR_ERR(qeth_core_root_dev) : 0; | |
4449 | if (rc) | |
4450 | goto register_err; | |
4451 | return 0; | |
4452 | ||
4453 | register_err: | |
4454 | driver_remove_file(&qeth_core_ccwgroup_driver.driver, | |
4455 | &driver_attr_group); | |
4456 | driver_err: | |
4457 | ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver); | |
4458 | ccwgroup_err: | |
4459 | ccw_driver_unregister(&qeth_ccw_driver); | |
4460 | ccw_err: | |
4461 | qeth_unregister_dbf_views(); | |
4462 | out_err: | |
4463 | PRINT_ERR("Initialization failed with code %d\n", rc); | |
4464 | return rc; | |
4465 | } | |
4466 | ||
4467 | static void __exit qeth_core_exit(void) | |
4468 | { | |
4469 | s390_root_dev_unregister(qeth_core_root_dev); | |
4470 | driver_remove_file(&qeth_core_ccwgroup_driver.driver, | |
4471 | &driver_attr_group); | |
4472 | ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver); | |
4473 | ccw_driver_unregister(&qeth_ccw_driver); | |
4474 | qeth_unregister_dbf_views(); | |
4475 | PRINT_INFO("core functions removed\n"); | |
4476 | } | |
4477 | ||
4478 | module_init(qeth_core_init); | |
4479 | module_exit(qeth_core_exit); | |
4480 | MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); | |
4481 | MODULE_DESCRIPTION("qeth core functions"); | |
4482 | MODULE_LICENSE("GPL"); |