Commit | Line | Data |
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4a71df50 FB |
1 | /* |
2 | * drivers/s390/net/qeth_core_main.c | |
3 | * | |
bbcfcdc8 | 4 | * Copyright IBM Corp. 2007, 2009 |
4a71df50 FB |
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 | ||
74eacdb9 FB |
11 | #define KMSG_COMPONENT "qeth" |
12 | #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt | |
13 | ||
4a71df50 FB |
14 | #include <linux/module.h> |
15 | #include <linux/moduleparam.h> | |
16 | #include <linux/string.h> | |
17 | #include <linux/errno.h> | |
18 | #include <linux/kernel.h> | |
19 | #include <linux/ip.h> | |
4a71df50 FB |
20 | #include <linux/tcp.h> |
21 | #include <linux/mii.h> | |
22 | #include <linux/kthread.h> | |
5a0e3ad6 | 23 | #include <linux/slab.h> |
4a71df50 | 24 | |
ab4227cb MS |
25 | #include <asm/ebcdic.h> |
26 | #include <asm/io.h> | |
4a71df50 FB |
27 | |
28 | #include "qeth_core.h" | |
4a71df50 | 29 | |
d11ba0c4 PT |
30 | struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = { |
31 | /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */ | |
32 | /* N P A M L V H */ | |
33 | [QETH_DBF_SETUP] = {"qeth_setup", | |
34 | 8, 1, 8, 5, &debug_hex_ascii_view, NULL}, | |
d11ba0c4 PT |
35 | [QETH_DBF_MSG] = {"qeth_msg", |
36 | 8, 1, 128, 3, &debug_sprintf_view, NULL}, | |
d11ba0c4 PT |
37 | [QETH_DBF_CTRL] = {"qeth_control", |
38 | 8, 1, QETH_DBF_CTRL_LEN, 5, &debug_hex_ascii_view, NULL}, | |
39 | }; | |
40 | EXPORT_SYMBOL_GPL(qeth_dbf); | |
4a71df50 FB |
41 | |
42 | struct qeth_card_list_struct qeth_core_card_list; | |
43 | EXPORT_SYMBOL_GPL(qeth_core_card_list); | |
683d718a FB |
44 | struct kmem_cache *qeth_core_header_cache; |
45 | EXPORT_SYMBOL_GPL(qeth_core_header_cache); | |
4a71df50 FB |
46 | |
47 | static struct device *qeth_core_root_dev; | |
5113fec0 | 48 | static unsigned int known_devices[][6] = QETH_MODELLIST_ARRAY; |
4a71df50 | 49 | static struct lock_class_key qdio_out_skb_queue_key; |
4a71df50 FB |
50 | |
51 | static void qeth_send_control_data_cb(struct qeth_channel *, | |
52 | struct qeth_cmd_buffer *); | |
53 | static int qeth_issue_next_read(struct qeth_card *); | |
54 | static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *); | |
55 | static void qeth_setup_ccw(struct qeth_channel *, unsigned char *, __u32); | |
56 | static void qeth_free_buffer_pool(struct qeth_card *); | |
57 | static int qeth_qdio_establish(struct qeth_card *); | |
58 | ||
59 | ||
4a71df50 FB |
60 | static inline const char *qeth_get_cardname(struct qeth_card *card) |
61 | { | |
62 | if (card->info.guestlan) { | |
63 | switch (card->info.type) { | |
5113fec0 | 64 | case QETH_CARD_TYPE_OSD: |
4a71df50 FB |
65 | return " Guest LAN QDIO"; |
66 | case QETH_CARD_TYPE_IQD: | |
67 | return " Guest LAN Hiper"; | |
5113fec0 UB |
68 | case QETH_CARD_TYPE_OSM: |
69 | return " Guest LAN QDIO - OSM"; | |
70 | case QETH_CARD_TYPE_OSX: | |
71 | return " Guest LAN QDIO - OSX"; | |
4a71df50 FB |
72 | default: |
73 | return " unknown"; | |
74 | } | |
75 | } else { | |
76 | switch (card->info.type) { | |
5113fec0 | 77 | case QETH_CARD_TYPE_OSD: |
4a71df50 FB |
78 | return " OSD Express"; |
79 | case QETH_CARD_TYPE_IQD: | |
80 | return " HiperSockets"; | |
81 | case QETH_CARD_TYPE_OSN: | |
82 | return " OSN QDIO"; | |
5113fec0 UB |
83 | case QETH_CARD_TYPE_OSM: |
84 | return " OSM QDIO"; | |
85 | case QETH_CARD_TYPE_OSX: | |
86 | return " OSX QDIO"; | |
4a71df50 FB |
87 | default: |
88 | return " unknown"; | |
89 | } | |
90 | } | |
91 | return " n/a"; | |
92 | } | |
93 | ||
94 | /* max length to be returned: 14 */ | |
95 | const char *qeth_get_cardname_short(struct qeth_card *card) | |
96 | { | |
97 | if (card->info.guestlan) { | |
98 | switch (card->info.type) { | |
5113fec0 | 99 | case QETH_CARD_TYPE_OSD: |
4a71df50 FB |
100 | return "GuestLAN QDIO"; |
101 | case QETH_CARD_TYPE_IQD: | |
102 | return "GuestLAN Hiper"; | |
5113fec0 UB |
103 | case QETH_CARD_TYPE_OSM: |
104 | return "GuestLAN OSM"; | |
105 | case QETH_CARD_TYPE_OSX: | |
106 | return "GuestLAN OSX"; | |
4a71df50 FB |
107 | default: |
108 | return "unknown"; | |
109 | } | |
110 | } else { | |
111 | switch (card->info.type) { | |
5113fec0 | 112 | case QETH_CARD_TYPE_OSD: |
4a71df50 FB |
113 | switch (card->info.link_type) { |
114 | case QETH_LINK_TYPE_FAST_ETH: | |
115 | return "OSD_100"; | |
116 | case QETH_LINK_TYPE_HSTR: | |
117 | return "HSTR"; | |
118 | case QETH_LINK_TYPE_GBIT_ETH: | |
119 | return "OSD_1000"; | |
120 | case QETH_LINK_TYPE_10GBIT_ETH: | |
121 | return "OSD_10GIG"; | |
122 | case QETH_LINK_TYPE_LANE_ETH100: | |
123 | return "OSD_FE_LANE"; | |
124 | case QETH_LINK_TYPE_LANE_TR: | |
125 | return "OSD_TR_LANE"; | |
126 | case QETH_LINK_TYPE_LANE_ETH1000: | |
127 | return "OSD_GbE_LANE"; | |
128 | case QETH_LINK_TYPE_LANE: | |
129 | return "OSD_ATM_LANE"; | |
130 | default: | |
131 | return "OSD_Express"; | |
132 | } | |
133 | case QETH_CARD_TYPE_IQD: | |
134 | return "HiperSockets"; | |
135 | case QETH_CARD_TYPE_OSN: | |
136 | return "OSN"; | |
5113fec0 UB |
137 | case QETH_CARD_TYPE_OSM: |
138 | return "OSM_1000"; | |
139 | case QETH_CARD_TYPE_OSX: | |
140 | return "OSX_10GIG"; | |
4a71df50 FB |
141 | default: |
142 | return "unknown"; | |
143 | } | |
144 | } | |
145 | return "n/a"; | |
146 | } | |
147 | ||
148 | void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads, | |
149 | int clear_start_mask) | |
150 | { | |
151 | unsigned long flags; | |
152 | ||
153 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
154 | card->thread_allowed_mask = threads; | |
155 | if (clear_start_mask) | |
156 | card->thread_start_mask &= threads; | |
157 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
158 | wake_up(&card->wait_q); | |
159 | } | |
160 | EXPORT_SYMBOL_GPL(qeth_set_allowed_threads); | |
161 | ||
162 | int qeth_threads_running(struct qeth_card *card, unsigned long threads) | |
163 | { | |
164 | unsigned long flags; | |
165 | int rc = 0; | |
166 | ||
167 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
168 | rc = (card->thread_running_mask & threads); | |
169 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
170 | return rc; | |
171 | } | |
172 | EXPORT_SYMBOL_GPL(qeth_threads_running); | |
173 | ||
174 | int qeth_wait_for_threads(struct qeth_card *card, unsigned long threads) | |
175 | { | |
176 | return wait_event_interruptible(card->wait_q, | |
177 | qeth_threads_running(card, threads) == 0); | |
178 | } | |
179 | EXPORT_SYMBOL_GPL(qeth_wait_for_threads); | |
180 | ||
181 | void qeth_clear_working_pool_list(struct qeth_card *card) | |
182 | { | |
183 | struct qeth_buffer_pool_entry *pool_entry, *tmp; | |
184 | ||
847a50fd | 185 | QETH_CARD_TEXT(card, 5, "clwrklst"); |
4a71df50 FB |
186 | list_for_each_entry_safe(pool_entry, tmp, |
187 | &card->qdio.in_buf_pool.entry_list, list){ | |
188 | list_del(&pool_entry->list); | |
189 | } | |
190 | } | |
191 | EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list); | |
192 | ||
193 | static int qeth_alloc_buffer_pool(struct qeth_card *card) | |
194 | { | |
195 | struct qeth_buffer_pool_entry *pool_entry; | |
196 | void *ptr; | |
197 | int i, j; | |
198 | ||
847a50fd | 199 | QETH_CARD_TEXT(card, 5, "alocpool"); |
4a71df50 FB |
200 | for (i = 0; i < card->qdio.init_pool.buf_count; ++i) { |
201 | pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL); | |
202 | if (!pool_entry) { | |
203 | qeth_free_buffer_pool(card); | |
204 | return -ENOMEM; | |
205 | } | |
206 | for (j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j) { | |
508b3c4f | 207 | ptr = (void *) __get_free_page(GFP_KERNEL); |
4a71df50 FB |
208 | if (!ptr) { |
209 | while (j > 0) | |
210 | free_page((unsigned long) | |
211 | pool_entry->elements[--j]); | |
212 | kfree(pool_entry); | |
213 | qeth_free_buffer_pool(card); | |
214 | return -ENOMEM; | |
215 | } | |
216 | pool_entry->elements[j] = ptr; | |
217 | } | |
218 | list_add(&pool_entry->init_list, | |
219 | &card->qdio.init_pool.entry_list); | |
220 | } | |
221 | return 0; | |
222 | } | |
223 | ||
224 | int qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt) | |
225 | { | |
847a50fd | 226 | QETH_CARD_TEXT(card, 2, "realcbp"); |
4a71df50 FB |
227 | |
228 | if ((card->state != CARD_STATE_DOWN) && | |
229 | (card->state != CARD_STATE_RECOVER)) | |
230 | return -EPERM; | |
231 | ||
232 | /* TODO: steel/add buffers from/to a running card's buffer pool (?) */ | |
233 | qeth_clear_working_pool_list(card); | |
234 | qeth_free_buffer_pool(card); | |
235 | card->qdio.in_buf_pool.buf_count = bufcnt; | |
236 | card->qdio.init_pool.buf_count = bufcnt; | |
237 | return qeth_alloc_buffer_pool(card); | |
238 | } | |
76b11f8e | 239 | EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool); |
4a71df50 | 240 | |
4a71df50 FB |
241 | static int qeth_issue_next_read(struct qeth_card *card) |
242 | { | |
243 | int rc; | |
244 | struct qeth_cmd_buffer *iob; | |
245 | ||
847a50fd | 246 | QETH_CARD_TEXT(card, 5, "issnxrd"); |
4a71df50 FB |
247 | if (card->read.state != CH_STATE_UP) |
248 | return -EIO; | |
249 | iob = qeth_get_buffer(&card->read); | |
250 | if (!iob) { | |
74eacdb9 FB |
251 | dev_warn(&card->gdev->dev, "The qeth device driver " |
252 | "failed to recover an error on the device\n"); | |
253 | QETH_DBF_MESSAGE(2, "%s issue_next_read failed: no iob " | |
254 | "available\n", dev_name(&card->gdev->dev)); | |
4a71df50 FB |
255 | return -ENOMEM; |
256 | } | |
257 | qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE); | |
847a50fd | 258 | QETH_CARD_TEXT(card, 6, "noirqpnd"); |
4a71df50 FB |
259 | rc = ccw_device_start(card->read.ccwdev, &card->read.ccw, |
260 | (addr_t) iob, 0, 0); | |
261 | if (rc) { | |
74eacdb9 FB |
262 | QETH_DBF_MESSAGE(2, "%s error in starting next read ccw! " |
263 | "rc=%i\n", dev_name(&card->gdev->dev), rc); | |
4a71df50 | 264 | atomic_set(&card->read.irq_pending, 0); |
908abbb5 | 265 | card->read_or_write_problem = 1; |
4a71df50 FB |
266 | qeth_schedule_recovery(card); |
267 | wake_up(&card->wait_q); | |
268 | } | |
269 | return rc; | |
270 | } | |
271 | ||
272 | static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card) | |
273 | { | |
274 | struct qeth_reply *reply; | |
275 | ||
276 | reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC); | |
277 | if (reply) { | |
278 | atomic_set(&reply->refcnt, 1); | |
279 | atomic_set(&reply->received, 0); | |
280 | reply->card = card; | |
281 | }; | |
282 | return reply; | |
283 | } | |
284 | ||
285 | static void qeth_get_reply(struct qeth_reply *reply) | |
286 | { | |
287 | WARN_ON(atomic_read(&reply->refcnt) <= 0); | |
288 | atomic_inc(&reply->refcnt); | |
289 | } | |
290 | ||
291 | static void qeth_put_reply(struct qeth_reply *reply) | |
292 | { | |
293 | WARN_ON(atomic_read(&reply->refcnt) <= 0); | |
294 | if (atomic_dec_and_test(&reply->refcnt)) | |
295 | kfree(reply); | |
296 | } | |
297 | ||
d11ba0c4 | 298 | static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc, |
4a71df50 FB |
299 | struct qeth_card *card) |
300 | { | |
4a71df50 | 301 | char *ipa_name; |
d11ba0c4 | 302 | int com = cmd->hdr.command; |
4a71df50 | 303 | ipa_name = qeth_get_ipa_cmd_name(com); |
d11ba0c4 PT |
304 | if (rc) |
305 | QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s returned x%X \"%s\"\n", | |
306 | ipa_name, com, QETH_CARD_IFNAME(card), | |
307 | rc, qeth_get_ipa_msg(rc)); | |
308 | else | |
309 | QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s succeeded\n", | |
310 | ipa_name, com, QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
311 | } |
312 | ||
313 | static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card, | |
314 | struct qeth_cmd_buffer *iob) | |
315 | { | |
316 | struct qeth_ipa_cmd *cmd = NULL; | |
317 | ||
847a50fd | 318 | QETH_CARD_TEXT(card, 5, "chkipad"); |
4a71df50 FB |
319 | if (IS_IPA(iob->data)) { |
320 | cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data); | |
321 | if (IS_IPA_REPLY(cmd)) { | |
76b11f8e UB |
322 | if (cmd->hdr.command != IPA_CMD_SETCCID && |
323 | cmd->hdr.command != IPA_CMD_DELCCID && | |
324 | cmd->hdr.command != IPA_CMD_MODCCID && | |
325 | cmd->hdr.command != IPA_CMD_SET_DIAG_ASS) | |
d11ba0c4 PT |
326 | qeth_issue_ipa_msg(cmd, |
327 | cmd->hdr.return_code, card); | |
4a71df50 FB |
328 | return cmd; |
329 | } else { | |
330 | switch (cmd->hdr.command) { | |
331 | case IPA_CMD_STOPLAN: | |
74eacdb9 FB |
332 | dev_warn(&card->gdev->dev, |
333 | "The link for interface %s on CHPID" | |
334 | " 0x%X failed\n", | |
4a71df50 FB |
335 | QETH_CARD_IFNAME(card), |
336 | card->info.chpid); | |
337 | card->lan_online = 0; | |
338 | if (card->dev && netif_carrier_ok(card->dev)) | |
339 | netif_carrier_off(card->dev); | |
340 | return NULL; | |
341 | case IPA_CMD_STARTLAN: | |
74eacdb9 FB |
342 | dev_info(&card->gdev->dev, |
343 | "The link for %s on CHPID 0x%X has" | |
344 | " been restored\n", | |
4a71df50 FB |
345 | QETH_CARD_IFNAME(card), |
346 | card->info.chpid); | |
347 | netif_carrier_on(card->dev); | |
922dc062 | 348 | card->lan_online = 1; |
4a71df50 FB |
349 | qeth_schedule_recovery(card); |
350 | return NULL; | |
351 | case IPA_CMD_MODCCID: | |
352 | return cmd; | |
353 | case IPA_CMD_REGISTER_LOCAL_ADDR: | |
847a50fd | 354 | QETH_CARD_TEXT(card, 3, "irla"); |
4a71df50 FB |
355 | break; |
356 | case IPA_CMD_UNREGISTER_LOCAL_ADDR: | |
847a50fd | 357 | QETH_CARD_TEXT(card, 3, "urla"); |
4a71df50 FB |
358 | break; |
359 | default: | |
c4cef07c | 360 | QETH_DBF_MESSAGE(2, "Received data is IPA " |
4a71df50 FB |
361 | "but not a reply!\n"); |
362 | break; | |
363 | } | |
364 | } | |
365 | } | |
366 | return cmd; | |
367 | } | |
368 | ||
369 | void qeth_clear_ipacmd_list(struct qeth_card *card) | |
370 | { | |
371 | struct qeth_reply *reply, *r; | |
372 | unsigned long flags; | |
373 | ||
847a50fd | 374 | QETH_CARD_TEXT(card, 4, "clipalst"); |
4a71df50 FB |
375 | |
376 | spin_lock_irqsave(&card->lock, flags); | |
377 | list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) { | |
378 | qeth_get_reply(reply); | |
379 | reply->rc = -EIO; | |
380 | atomic_inc(&reply->received); | |
381 | list_del_init(&reply->list); | |
382 | wake_up(&reply->wait_q); | |
383 | qeth_put_reply(reply); | |
384 | } | |
385 | spin_unlock_irqrestore(&card->lock, flags); | |
908abbb5 | 386 | atomic_set(&card->write.irq_pending, 0); |
4a71df50 FB |
387 | } |
388 | EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list); | |
389 | ||
5113fec0 UB |
390 | static int qeth_check_idx_response(struct qeth_card *card, |
391 | unsigned char *buffer) | |
4a71df50 FB |
392 | { |
393 | if (!buffer) | |
394 | return 0; | |
395 | ||
d11ba0c4 | 396 | QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN); |
4a71df50 | 397 | if ((buffer[2] & 0xc0) == 0xc0) { |
74eacdb9 | 398 | QETH_DBF_MESSAGE(2, "received an IDX TERMINATE " |
4a71df50 FB |
399 | "with cause code 0x%02x%s\n", |
400 | buffer[4], | |
401 | ((buffer[4] == 0x22) ? | |
402 | " -- try another portname" : "")); | |
847a50fd CO |
403 | QETH_CARD_TEXT(card, 2, "ckidxres"); |
404 | QETH_CARD_TEXT(card, 2, " idxterm"); | |
405 | QETH_CARD_TEXT_(card, 2, " rc%d", -EIO); | |
5113fec0 UB |
406 | if (buffer[4] == 0xf6) { |
407 | dev_err(&card->gdev->dev, | |
408 | "The qeth device is not configured " | |
409 | "for the OSI layer required by z/VM\n"); | |
410 | return -EPERM; | |
411 | } | |
4a71df50 FB |
412 | return -EIO; |
413 | } | |
414 | return 0; | |
415 | } | |
416 | ||
417 | static void qeth_setup_ccw(struct qeth_channel *channel, unsigned char *iob, | |
418 | __u32 len) | |
419 | { | |
420 | struct qeth_card *card; | |
421 | ||
4a71df50 | 422 | card = CARD_FROM_CDEV(channel->ccwdev); |
847a50fd | 423 | QETH_CARD_TEXT(card, 4, "setupccw"); |
4a71df50 FB |
424 | if (channel == &card->read) |
425 | memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1)); | |
426 | else | |
427 | memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1)); | |
428 | channel->ccw.count = len; | |
429 | channel->ccw.cda = (__u32) __pa(iob); | |
430 | } | |
431 | ||
432 | static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel) | |
433 | { | |
434 | __u8 index; | |
435 | ||
847a50fd | 436 | QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "getbuff"); |
4a71df50 FB |
437 | index = channel->io_buf_no; |
438 | do { | |
439 | if (channel->iob[index].state == BUF_STATE_FREE) { | |
440 | channel->iob[index].state = BUF_STATE_LOCKED; | |
441 | channel->io_buf_no = (channel->io_buf_no + 1) % | |
442 | QETH_CMD_BUFFER_NO; | |
443 | memset(channel->iob[index].data, 0, QETH_BUFSIZE); | |
444 | return channel->iob + index; | |
445 | } | |
446 | index = (index + 1) % QETH_CMD_BUFFER_NO; | |
447 | } while (index != channel->io_buf_no); | |
448 | ||
449 | return NULL; | |
450 | } | |
451 | ||
452 | void qeth_release_buffer(struct qeth_channel *channel, | |
453 | struct qeth_cmd_buffer *iob) | |
454 | { | |
455 | unsigned long flags; | |
456 | ||
847a50fd | 457 | QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "relbuff"); |
4a71df50 FB |
458 | spin_lock_irqsave(&channel->iob_lock, flags); |
459 | memset(iob->data, 0, QETH_BUFSIZE); | |
460 | iob->state = BUF_STATE_FREE; | |
461 | iob->callback = qeth_send_control_data_cb; | |
462 | iob->rc = 0; | |
463 | spin_unlock_irqrestore(&channel->iob_lock, flags); | |
464 | } | |
465 | EXPORT_SYMBOL_GPL(qeth_release_buffer); | |
466 | ||
467 | static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel) | |
468 | { | |
469 | struct qeth_cmd_buffer *buffer = NULL; | |
470 | unsigned long flags; | |
471 | ||
472 | spin_lock_irqsave(&channel->iob_lock, flags); | |
473 | buffer = __qeth_get_buffer(channel); | |
474 | spin_unlock_irqrestore(&channel->iob_lock, flags); | |
475 | return buffer; | |
476 | } | |
477 | ||
478 | struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *channel) | |
479 | { | |
480 | struct qeth_cmd_buffer *buffer; | |
481 | wait_event(channel->wait_q, | |
482 | ((buffer = qeth_get_buffer(channel)) != NULL)); | |
483 | return buffer; | |
484 | } | |
485 | EXPORT_SYMBOL_GPL(qeth_wait_for_buffer); | |
486 | ||
487 | void qeth_clear_cmd_buffers(struct qeth_channel *channel) | |
488 | { | |
489 | int cnt; | |
490 | ||
491 | for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) | |
492 | qeth_release_buffer(channel, &channel->iob[cnt]); | |
493 | channel->buf_no = 0; | |
494 | channel->io_buf_no = 0; | |
495 | } | |
496 | EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers); | |
497 | ||
498 | static void qeth_send_control_data_cb(struct qeth_channel *channel, | |
499 | struct qeth_cmd_buffer *iob) | |
500 | { | |
501 | struct qeth_card *card; | |
502 | struct qeth_reply *reply, *r; | |
503 | struct qeth_ipa_cmd *cmd; | |
504 | unsigned long flags; | |
505 | int keep_reply; | |
5113fec0 | 506 | int rc = 0; |
4a71df50 | 507 | |
4a71df50 | 508 | card = CARD_FROM_CDEV(channel->ccwdev); |
847a50fd | 509 | QETH_CARD_TEXT(card, 4, "sndctlcb"); |
5113fec0 UB |
510 | rc = qeth_check_idx_response(card, iob->data); |
511 | switch (rc) { | |
512 | case 0: | |
513 | break; | |
514 | case -EIO: | |
4a71df50 | 515 | qeth_clear_ipacmd_list(card); |
5113fec0 | 516 | qeth_schedule_recovery(card); |
01fc3e86 | 517 | /* fall through */ |
5113fec0 | 518 | default: |
4a71df50 FB |
519 | goto out; |
520 | } | |
521 | ||
522 | cmd = qeth_check_ipa_data(card, iob); | |
523 | if ((cmd == NULL) && (card->state != CARD_STATE_DOWN)) | |
524 | goto out; | |
525 | /*in case of OSN : check if cmd is set */ | |
526 | if (card->info.type == QETH_CARD_TYPE_OSN && | |
527 | cmd && | |
528 | cmd->hdr.command != IPA_CMD_STARTLAN && | |
529 | card->osn_info.assist_cb != NULL) { | |
530 | card->osn_info.assist_cb(card->dev, cmd); | |
531 | goto out; | |
532 | } | |
533 | ||
534 | spin_lock_irqsave(&card->lock, flags); | |
535 | list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) { | |
536 | if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) || | |
537 | ((cmd) && (reply->seqno == cmd->hdr.seqno))) { | |
538 | qeth_get_reply(reply); | |
539 | list_del_init(&reply->list); | |
540 | spin_unlock_irqrestore(&card->lock, flags); | |
541 | keep_reply = 0; | |
542 | if (reply->callback != NULL) { | |
543 | if (cmd) { | |
544 | reply->offset = (__u16)((char *)cmd - | |
545 | (char *)iob->data); | |
546 | keep_reply = reply->callback(card, | |
547 | reply, | |
548 | (unsigned long)cmd); | |
549 | } else | |
550 | keep_reply = reply->callback(card, | |
551 | reply, | |
552 | (unsigned long)iob); | |
553 | } | |
554 | if (cmd) | |
555 | reply->rc = (u16) cmd->hdr.return_code; | |
556 | else if (iob->rc) | |
557 | reply->rc = iob->rc; | |
558 | if (keep_reply) { | |
559 | spin_lock_irqsave(&card->lock, flags); | |
560 | list_add_tail(&reply->list, | |
561 | &card->cmd_waiter_list); | |
562 | spin_unlock_irqrestore(&card->lock, flags); | |
563 | } else { | |
564 | atomic_inc(&reply->received); | |
565 | wake_up(&reply->wait_q); | |
566 | } | |
567 | qeth_put_reply(reply); | |
568 | goto out; | |
569 | } | |
570 | } | |
571 | spin_unlock_irqrestore(&card->lock, flags); | |
572 | out: | |
573 | memcpy(&card->seqno.pdu_hdr_ack, | |
574 | QETH_PDU_HEADER_SEQ_NO(iob->data), | |
575 | QETH_SEQ_NO_LENGTH); | |
576 | qeth_release_buffer(channel, iob); | |
577 | } | |
578 | ||
579 | static int qeth_setup_channel(struct qeth_channel *channel) | |
580 | { | |
581 | int cnt; | |
582 | ||
d11ba0c4 | 583 | QETH_DBF_TEXT(SETUP, 2, "setupch"); |
4a71df50 | 584 | for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) { |
ae57b20a | 585 | channel->iob[cnt].data = |
4a71df50 FB |
586 | kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL); |
587 | if (channel->iob[cnt].data == NULL) | |
588 | break; | |
589 | channel->iob[cnt].state = BUF_STATE_FREE; | |
590 | channel->iob[cnt].channel = channel; | |
591 | channel->iob[cnt].callback = qeth_send_control_data_cb; | |
592 | channel->iob[cnt].rc = 0; | |
593 | } | |
594 | if (cnt < QETH_CMD_BUFFER_NO) { | |
595 | while (cnt-- > 0) | |
596 | kfree(channel->iob[cnt].data); | |
597 | return -ENOMEM; | |
598 | } | |
599 | channel->buf_no = 0; | |
600 | channel->io_buf_no = 0; | |
601 | atomic_set(&channel->irq_pending, 0); | |
602 | spin_lock_init(&channel->iob_lock); | |
603 | ||
604 | init_waitqueue_head(&channel->wait_q); | |
605 | return 0; | |
606 | } | |
607 | ||
608 | static int qeth_set_thread_start_bit(struct qeth_card *card, | |
609 | unsigned long thread) | |
610 | { | |
611 | unsigned long flags; | |
612 | ||
613 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
614 | if (!(card->thread_allowed_mask & thread) || | |
615 | (card->thread_start_mask & thread)) { | |
616 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
617 | return -EPERM; | |
618 | } | |
619 | card->thread_start_mask |= thread; | |
620 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
621 | return 0; | |
622 | } | |
623 | ||
624 | void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread) | |
625 | { | |
626 | unsigned long flags; | |
627 | ||
628 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
629 | card->thread_start_mask &= ~thread; | |
630 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
631 | wake_up(&card->wait_q); | |
632 | } | |
633 | EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit); | |
634 | ||
635 | void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread) | |
636 | { | |
637 | unsigned long flags; | |
638 | ||
639 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
640 | card->thread_running_mask &= ~thread; | |
641 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
642 | wake_up(&card->wait_q); | |
643 | } | |
644 | EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit); | |
645 | ||
646 | static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread) | |
647 | { | |
648 | unsigned long flags; | |
649 | int rc = 0; | |
650 | ||
651 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
652 | if (card->thread_start_mask & thread) { | |
653 | if ((card->thread_allowed_mask & thread) && | |
654 | !(card->thread_running_mask & thread)) { | |
655 | rc = 1; | |
656 | card->thread_start_mask &= ~thread; | |
657 | card->thread_running_mask |= thread; | |
658 | } else | |
659 | rc = -EPERM; | |
660 | } | |
661 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
662 | return rc; | |
663 | } | |
664 | ||
665 | int qeth_do_run_thread(struct qeth_card *card, unsigned long thread) | |
666 | { | |
667 | int rc = 0; | |
668 | ||
669 | wait_event(card->wait_q, | |
670 | (rc = __qeth_do_run_thread(card, thread)) >= 0); | |
671 | return rc; | |
672 | } | |
673 | EXPORT_SYMBOL_GPL(qeth_do_run_thread); | |
674 | ||
675 | void qeth_schedule_recovery(struct qeth_card *card) | |
676 | { | |
847a50fd | 677 | QETH_CARD_TEXT(card, 2, "startrec"); |
4a71df50 FB |
678 | if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0) |
679 | schedule_work(&card->kernel_thread_starter); | |
680 | } | |
681 | EXPORT_SYMBOL_GPL(qeth_schedule_recovery); | |
682 | ||
683 | static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb) | |
684 | { | |
685 | int dstat, cstat; | |
686 | char *sense; | |
847a50fd | 687 | struct qeth_card *card; |
4a71df50 FB |
688 | |
689 | sense = (char *) irb->ecw; | |
23d805b6 PO |
690 | cstat = irb->scsw.cmd.cstat; |
691 | dstat = irb->scsw.cmd.dstat; | |
847a50fd | 692 | card = CARD_FROM_CDEV(cdev); |
4a71df50 FB |
693 | |
694 | if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK | | |
695 | SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK | | |
696 | SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) { | |
847a50fd | 697 | QETH_CARD_TEXT(card, 2, "CGENCHK"); |
74eacdb9 FB |
698 | dev_warn(&cdev->dev, "The qeth device driver " |
699 | "failed to recover an error on the device\n"); | |
5113fec0 | 700 | QETH_DBF_MESSAGE(2, "%s check on device dstat=x%x, cstat=x%x\n", |
74eacdb9 | 701 | dev_name(&cdev->dev), dstat, cstat); |
4a71df50 FB |
702 | print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET, |
703 | 16, 1, irb, 64, 1); | |
704 | return 1; | |
705 | } | |
706 | ||
707 | if (dstat & DEV_STAT_UNIT_CHECK) { | |
708 | if (sense[SENSE_RESETTING_EVENT_BYTE] & | |
709 | SENSE_RESETTING_EVENT_FLAG) { | |
847a50fd | 710 | QETH_CARD_TEXT(card, 2, "REVIND"); |
4a71df50 FB |
711 | return 1; |
712 | } | |
713 | if (sense[SENSE_COMMAND_REJECT_BYTE] & | |
714 | SENSE_COMMAND_REJECT_FLAG) { | |
847a50fd | 715 | QETH_CARD_TEXT(card, 2, "CMDREJi"); |
28a7e4c9 | 716 | return 1; |
4a71df50 FB |
717 | } |
718 | if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) { | |
847a50fd | 719 | QETH_CARD_TEXT(card, 2, "AFFE"); |
4a71df50 FB |
720 | return 1; |
721 | } | |
722 | if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) { | |
847a50fd | 723 | QETH_CARD_TEXT(card, 2, "ZEROSEN"); |
4a71df50 FB |
724 | return 0; |
725 | } | |
847a50fd | 726 | QETH_CARD_TEXT(card, 2, "DGENCHK"); |
4a71df50 FB |
727 | return 1; |
728 | } | |
729 | return 0; | |
730 | } | |
731 | ||
732 | static long __qeth_check_irb_error(struct ccw_device *cdev, | |
733 | unsigned long intparm, struct irb *irb) | |
734 | { | |
847a50fd CO |
735 | struct qeth_card *card; |
736 | ||
737 | card = CARD_FROM_CDEV(cdev); | |
738 | ||
4a71df50 FB |
739 | if (!IS_ERR(irb)) |
740 | return 0; | |
741 | ||
742 | switch (PTR_ERR(irb)) { | |
743 | case -EIO: | |
74eacdb9 FB |
744 | QETH_DBF_MESSAGE(2, "%s i/o-error on device\n", |
745 | dev_name(&cdev->dev)); | |
847a50fd CO |
746 | QETH_CARD_TEXT(card, 2, "ckirberr"); |
747 | QETH_CARD_TEXT_(card, 2, " rc%d", -EIO); | |
4a71df50 FB |
748 | break; |
749 | case -ETIMEDOUT: | |
74eacdb9 FB |
750 | dev_warn(&cdev->dev, "A hardware operation timed out" |
751 | " on the device\n"); | |
847a50fd CO |
752 | QETH_CARD_TEXT(card, 2, "ckirberr"); |
753 | QETH_CARD_TEXT_(card, 2, " rc%d", -ETIMEDOUT); | |
4a71df50 | 754 | if (intparm == QETH_RCD_PARM) { |
4a71df50 FB |
755 | if (card && (card->data.ccwdev == cdev)) { |
756 | card->data.state = CH_STATE_DOWN; | |
757 | wake_up(&card->wait_q); | |
758 | } | |
759 | } | |
760 | break; | |
761 | default: | |
74eacdb9 FB |
762 | QETH_DBF_MESSAGE(2, "%s unknown error %ld on device\n", |
763 | dev_name(&cdev->dev), PTR_ERR(irb)); | |
847a50fd CO |
764 | QETH_CARD_TEXT(card, 2, "ckirberr"); |
765 | QETH_CARD_TEXT(card, 2, " rc???"); | |
4a71df50 FB |
766 | } |
767 | return PTR_ERR(irb); | |
768 | } | |
769 | ||
770 | static void qeth_irq(struct ccw_device *cdev, unsigned long intparm, | |
771 | struct irb *irb) | |
772 | { | |
773 | int rc; | |
774 | int cstat, dstat; | |
775 | struct qeth_cmd_buffer *buffer; | |
776 | struct qeth_channel *channel; | |
777 | struct qeth_card *card; | |
778 | struct qeth_cmd_buffer *iob; | |
779 | __u8 index; | |
780 | ||
4a71df50 FB |
781 | if (__qeth_check_irb_error(cdev, intparm, irb)) |
782 | return; | |
23d805b6 PO |
783 | cstat = irb->scsw.cmd.cstat; |
784 | dstat = irb->scsw.cmd.dstat; | |
4a71df50 FB |
785 | |
786 | card = CARD_FROM_CDEV(cdev); | |
787 | if (!card) | |
788 | return; | |
789 | ||
847a50fd CO |
790 | QETH_CARD_TEXT(card, 5, "irq"); |
791 | ||
4a71df50 FB |
792 | if (card->read.ccwdev == cdev) { |
793 | channel = &card->read; | |
847a50fd | 794 | QETH_CARD_TEXT(card, 5, "read"); |
4a71df50 FB |
795 | } else if (card->write.ccwdev == cdev) { |
796 | channel = &card->write; | |
847a50fd | 797 | QETH_CARD_TEXT(card, 5, "write"); |
4a71df50 FB |
798 | } else { |
799 | channel = &card->data; | |
847a50fd | 800 | QETH_CARD_TEXT(card, 5, "data"); |
4a71df50 FB |
801 | } |
802 | atomic_set(&channel->irq_pending, 0); | |
803 | ||
23d805b6 | 804 | if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC)) |
4a71df50 FB |
805 | channel->state = CH_STATE_STOPPED; |
806 | ||
23d805b6 | 807 | if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC)) |
4a71df50 FB |
808 | channel->state = CH_STATE_HALTED; |
809 | ||
810 | /*let's wake up immediately on data channel*/ | |
811 | if ((channel == &card->data) && (intparm != 0) && | |
812 | (intparm != QETH_RCD_PARM)) | |
813 | goto out; | |
814 | ||
815 | if (intparm == QETH_CLEAR_CHANNEL_PARM) { | |
847a50fd | 816 | QETH_CARD_TEXT(card, 6, "clrchpar"); |
4a71df50 FB |
817 | /* we don't have to handle this further */ |
818 | intparm = 0; | |
819 | } | |
820 | if (intparm == QETH_HALT_CHANNEL_PARM) { | |
847a50fd | 821 | QETH_CARD_TEXT(card, 6, "hltchpar"); |
4a71df50 FB |
822 | /* we don't have to handle this further */ |
823 | intparm = 0; | |
824 | } | |
825 | if ((dstat & DEV_STAT_UNIT_EXCEP) || | |
826 | (dstat & DEV_STAT_UNIT_CHECK) || | |
827 | (cstat)) { | |
828 | if (irb->esw.esw0.erw.cons) { | |
74eacdb9 FB |
829 | dev_warn(&channel->ccwdev->dev, |
830 | "The qeth device driver failed to recover " | |
831 | "an error on the device\n"); | |
832 | QETH_DBF_MESSAGE(2, "%s sense data available. cstat " | |
833 | "0x%X dstat 0x%X\n", | |
834 | dev_name(&channel->ccwdev->dev), cstat, dstat); | |
4a71df50 FB |
835 | print_hex_dump(KERN_WARNING, "qeth: irb ", |
836 | DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1); | |
837 | print_hex_dump(KERN_WARNING, "qeth: sense data ", | |
838 | DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1); | |
839 | } | |
840 | if (intparm == QETH_RCD_PARM) { | |
841 | channel->state = CH_STATE_DOWN; | |
842 | goto out; | |
843 | } | |
844 | rc = qeth_get_problem(cdev, irb); | |
845 | if (rc) { | |
28a7e4c9 | 846 | qeth_clear_ipacmd_list(card); |
4a71df50 FB |
847 | qeth_schedule_recovery(card); |
848 | goto out; | |
849 | } | |
850 | } | |
851 | ||
852 | if (intparm == QETH_RCD_PARM) { | |
853 | channel->state = CH_STATE_RCD_DONE; | |
854 | goto out; | |
855 | } | |
856 | if (intparm) { | |
857 | buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm); | |
858 | buffer->state = BUF_STATE_PROCESSED; | |
859 | } | |
860 | if (channel == &card->data) | |
861 | return; | |
862 | if (channel == &card->read && | |
863 | channel->state == CH_STATE_UP) | |
864 | qeth_issue_next_read(card); | |
865 | ||
866 | iob = channel->iob; | |
867 | index = channel->buf_no; | |
868 | while (iob[index].state == BUF_STATE_PROCESSED) { | |
869 | if (iob[index].callback != NULL) | |
870 | iob[index].callback(channel, iob + index); | |
871 | ||
872 | index = (index + 1) % QETH_CMD_BUFFER_NO; | |
873 | } | |
874 | channel->buf_no = index; | |
875 | out: | |
876 | wake_up(&card->wait_q); | |
877 | return; | |
878 | } | |
879 | ||
b67d801f UB |
880 | static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, |
881 | struct qeth_qdio_out_buffer *buf) | |
4a71df50 FB |
882 | { |
883 | int i; | |
884 | struct sk_buff *skb; | |
885 | ||
886 | /* is PCI flag set on buffer? */ | |
887 | if (buf->buffer->element[0].flags & 0x40) | |
888 | atomic_dec(&queue->set_pci_flags_count); | |
889 | ||
b67d801f UB |
890 | skb = skb_dequeue(&buf->skb_list); |
891 | while (skb) { | |
892 | atomic_dec(&skb->users); | |
893 | dev_kfree_skb_any(skb); | |
4a71df50 FB |
894 | skb = skb_dequeue(&buf->skb_list); |
895 | } | |
4a71df50 | 896 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) { |
683d718a FB |
897 | if (buf->buffer->element[i].addr && buf->is_header[i]) |
898 | kmem_cache_free(qeth_core_header_cache, | |
899 | buf->buffer->element[i].addr); | |
900 | buf->is_header[i] = 0; | |
4a71df50 FB |
901 | buf->buffer->element[i].length = 0; |
902 | buf->buffer->element[i].addr = NULL; | |
903 | buf->buffer->element[i].flags = 0; | |
904 | } | |
9f29f6de | 905 | buf->buffer->element[15].flags = 0; |
4a71df50 FB |
906 | buf->next_element_to_fill = 0; |
907 | atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY); | |
908 | } | |
909 | ||
910 | void qeth_clear_qdio_buffers(struct qeth_card *card) | |
911 | { | |
912 | int i, j; | |
913 | ||
847a50fd | 914 | QETH_CARD_TEXT(card, 2, "clearqdbf"); |
4a71df50 FB |
915 | /* clear outbound buffers to free skbs */ |
916 | for (i = 0; i < card->qdio.no_out_queues; ++i) | |
917 | if (card->qdio.out_qs[i]) { | |
918 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) | |
919 | qeth_clear_output_buffer(card->qdio.out_qs[i], | |
920 | &card->qdio.out_qs[i]->bufs[j]); | |
921 | } | |
922 | } | |
923 | EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers); | |
924 | ||
925 | static void qeth_free_buffer_pool(struct qeth_card *card) | |
926 | { | |
927 | struct qeth_buffer_pool_entry *pool_entry, *tmp; | |
928 | int i = 0; | |
4a71df50 FB |
929 | list_for_each_entry_safe(pool_entry, tmp, |
930 | &card->qdio.init_pool.entry_list, init_list){ | |
931 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) | |
932 | free_page((unsigned long)pool_entry->elements[i]); | |
933 | list_del(&pool_entry->init_list); | |
934 | kfree(pool_entry); | |
935 | } | |
936 | } | |
937 | ||
938 | static void qeth_free_qdio_buffers(struct qeth_card *card) | |
939 | { | |
940 | int i, j; | |
941 | ||
4a71df50 FB |
942 | if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) == |
943 | QETH_QDIO_UNINITIALIZED) | |
944 | return; | |
945 | kfree(card->qdio.in_q); | |
946 | card->qdio.in_q = NULL; | |
947 | /* inbound buffer pool */ | |
948 | qeth_free_buffer_pool(card); | |
949 | /* free outbound qdio_qs */ | |
950 | if (card->qdio.out_qs) { | |
951 | for (i = 0; i < card->qdio.no_out_queues; ++i) { | |
952 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) | |
953 | qeth_clear_output_buffer(card->qdio.out_qs[i], | |
954 | &card->qdio.out_qs[i]->bufs[j]); | |
955 | kfree(card->qdio.out_qs[i]); | |
956 | } | |
957 | kfree(card->qdio.out_qs); | |
958 | card->qdio.out_qs = NULL; | |
959 | } | |
960 | } | |
961 | ||
962 | static void qeth_clean_channel(struct qeth_channel *channel) | |
963 | { | |
964 | int cnt; | |
965 | ||
d11ba0c4 | 966 | QETH_DBF_TEXT(SETUP, 2, "freech"); |
4a71df50 FB |
967 | for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) |
968 | kfree(channel->iob[cnt].data); | |
969 | } | |
970 | ||
5113fec0 | 971 | static void qeth_get_channel_path_desc(struct qeth_card *card) |
4a71df50 | 972 | { |
4a71df50 FB |
973 | struct ccw_device *ccwdev; |
974 | struct channelPath_dsc { | |
975 | u8 flags; | |
976 | u8 lsn; | |
977 | u8 desc; | |
978 | u8 chpid; | |
979 | u8 swla; | |
980 | u8 zeroes; | |
981 | u8 chla; | |
982 | u8 chpp; | |
983 | } *chp_dsc; | |
984 | ||
5113fec0 | 985 | QETH_DBF_TEXT(SETUP, 2, "chp_desc"); |
4a71df50 FB |
986 | |
987 | ccwdev = card->data.ccwdev; | |
988 | chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0); | |
989 | if (chp_dsc != NULL) { | |
990 | /* CHPP field bit 6 == 1 -> single queue */ | |
5113fec0 UB |
991 | if ((chp_dsc->chpp & 0x02) == 0x02) |
992 | card->qdio.no_out_queues = 1; | |
993 | card->info.func_level = 0x4100 + chp_dsc->desc; | |
4a71df50 FB |
994 | kfree(chp_dsc); |
995 | } | |
5113fec0 UB |
996 | if (card->qdio.no_out_queues == 1) { |
997 | card->qdio.default_out_queue = 0; | |
998 | dev_info(&card->gdev->dev, | |
999 | "Priority Queueing not supported\n"); | |
1000 | } | |
1001 | QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues); | |
1002 | QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level); | |
1003 | return; | |
4a71df50 FB |
1004 | } |
1005 | ||
1006 | static void qeth_init_qdio_info(struct qeth_card *card) | |
1007 | { | |
d11ba0c4 | 1008 | QETH_DBF_TEXT(SETUP, 4, "intqdinf"); |
4a71df50 FB |
1009 | atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); |
1010 | /* inbound */ | |
1011 | card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT; | |
1012 | card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT; | |
1013 | card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count; | |
1014 | INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list); | |
1015 | INIT_LIST_HEAD(&card->qdio.init_pool.entry_list); | |
1016 | } | |
1017 | ||
1018 | static void qeth_set_intial_options(struct qeth_card *card) | |
1019 | { | |
1020 | card->options.route4.type = NO_ROUTER; | |
1021 | card->options.route6.type = NO_ROUTER; | |
1022 | card->options.checksum_type = QETH_CHECKSUM_DEFAULT; | |
1023 | card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS; | |
1024 | card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL; | |
1025 | card->options.fake_broadcast = 0; | |
1026 | card->options.add_hhlen = DEFAULT_ADD_HHLEN; | |
4a71df50 FB |
1027 | card->options.performance_stats = 0; |
1028 | card->options.rx_sg_cb = QETH_RX_SG_CB; | |
d64ecc22 | 1029 | card->options.isolation = ISOLATION_MODE_NONE; |
4a71df50 FB |
1030 | } |
1031 | ||
1032 | static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread) | |
1033 | { | |
1034 | unsigned long flags; | |
1035 | int rc = 0; | |
1036 | ||
1037 | spin_lock_irqsave(&card->thread_mask_lock, flags); | |
847a50fd | 1038 | QETH_CARD_TEXT_(card, 4, " %02x%02x%02x", |
4a71df50 FB |
1039 | (u8) card->thread_start_mask, |
1040 | (u8) card->thread_allowed_mask, | |
1041 | (u8) card->thread_running_mask); | |
1042 | rc = (card->thread_start_mask & thread); | |
1043 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); | |
1044 | return rc; | |
1045 | } | |
1046 | ||
1047 | static void qeth_start_kernel_thread(struct work_struct *work) | |
1048 | { | |
1049 | struct qeth_card *card = container_of(work, struct qeth_card, | |
1050 | kernel_thread_starter); | |
847a50fd | 1051 | QETH_CARD_TEXT(card , 2, "strthrd"); |
4a71df50 FB |
1052 | |
1053 | if (card->read.state != CH_STATE_UP && | |
1054 | card->write.state != CH_STATE_UP) | |
1055 | return; | |
1056 | if (qeth_do_start_thread(card, QETH_RECOVER_THREAD)) | |
1057 | kthread_run(card->discipline.recover, (void *) card, | |
1058 | "qeth_recover"); | |
1059 | } | |
1060 | ||
1061 | static int qeth_setup_card(struct qeth_card *card) | |
1062 | { | |
1063 | ||
d11ba0c4 PT |
1064 | QETH_DBF_TEXT(SETUP, 2, "setupcrd"); |
1065 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 FB |
1066 | |
1067 | card->read.state = CH_STATE_DOWN; | |
1068 | card->write.state = CH_STATE_DOWN; | |
1069 | card->data.state = CH_STATE_DOWN; | |
1070 | card->state = CARD_STATE_DOWN; | |
1071 | card->lan_online = 0; | |
1072 | card->use_hard_stop = 0; | |
908abbb5 | 1073 | card->read_or_write_problem = 0; |
4a71df50 FB |
1074 | card->dev = NULL; |
1075 | spin_lock_init(&card->vlanlock); | |
1076 | spin_lock_init(&card->mclock); | |
1077 | card->vlangrp = NULL; | |
1078 | spin_lock_init(&card->lock); | |
1079 | spin_lock_init(&card->ip_lock); | |
1080 | spin_lock_init(&card->thread_mask_lock); | |
c4949f07 | 1081 | mutex_init(&card->conf_mutex); |
9dc48ccc | 1082 | mutex_init(&card->discipline_mutex); |
4a71df50 FB |
1083 | card->thread_start_mask = 0; |
1084 | card->thread_allowed_mask = 0; | |
1085 | card->thread_running_mask = 0; | |
1086 | INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread); | |
1087 | INIT_LIST_HEAD(&card->ip_list); | |
4a71df50 FB |
1088 | INIT_LIST_HEAD(card->ip_tbd_list); |
1089 | INIT_LIST_HEAD(&card->cmd_waiter_list); | |
1090 | init_waitqueue_head(&card->wait_q); | |
1091 | /* intial options */ | |
1092 | qeth_set_intial_options(card); | |
1093 | /* IP address takeover */ | |
1094 | INIT_LIST_HEAD(&card->ipato.entries); | |
1095 | card->ipato.enabled = 0; | |
1096 | card->ipato.invert4 = 0; | |
1097 | card->ipato.invert6 = 0; | |
1098 | /* init QDIO stuff */ | |
1099 | qeth_init_qdio_info(card); | |
1100 | return 0; | |
1101 | } | |
1102 | ||
6bcac508 MS |
1103 | static void qeth_core_sl_print(struct seq_file *m, struct service_level *slr) |
1104 | { | |
1105 | struct qeth_card *card = container_of(slr, struct qeth_card, | |
1106 | qeth_service_level); | |
0d788c7d KDW |
1107 | if (card->info.mcl_level[0]) |
1108 | seq_printf(m, "qeth: %s firmware level %s\n", | |
1109 | CARD_BUS_ID(card), card->info.mcl_level); | |
6bcac508 MS |
1110 | } |
1111 | ||
4a71df50 FB |
1112 | static struct qeth_card *qeth_alloc_card(void) |
1113 | { | |
1114 | struct qeth_card *card; | |
1115 | ||
d11ba0c4 | 1116 | QETH_DBF_TEXT(SETUP, 2, "alloccrd"); |
4a71df50 FB |
1117 | card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL); |
1118 | if (!card) | |
76b11f8e | 1119 | goto out; |
d11ba0c4 | 1120 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); |
76b11f8e UB |
1121 | card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL); |
1122 | if (!card->ip_tbd_list) { | |
1123 | QETH_DBF_TEXT(SETUP, 0, "iptbdnom"); | |
1124 | goto out_card; | |
4a71df50 | 1125 | } |
76b11f8e UB |
1126 | if (qeth_setup_channel(&card->read)) |
1127 | goto out_ip; | |
1128 | if (qeth_setup_channel(&card->write)) | |
1129 | goto out_channel; | |
4a71df50 | 1130 | card->options.layer2 = -1; |
6bcac508 MS |
1131 | card->qeth_service_level.seq_print = qeth_core_sl_print; |
1132 | register_service_level(&card->qeth_service_level); | |
4a71df50 | 1133 | return card; |
76b11f8e UB |
1134 | |
1135 | out_channel: | |
1136 | qeth_clean_channel(&card->read); | |
1137 | out_ip: | |
1138 | kfree(card->ip_tbd_list); | |
1139 | out_card: | |
1140 | kfree(card); | |
1141 | out: | |
1142 | return NULL; | |
4a71df50 FB |
1143 | } |
1144 | ||
1145 | static int qeth_determine_card_type(struct qeth_card *card) | |
1146 | { | |
1147 | int i = 0; | |
1148 | ||
d11ba0c4 | 1149 | QETH_DBF_TEXT(SETUP, 2, "detcdtyp"); |
4a71df50 FB |
1150 | |
1151 | card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT; | |
1152 | card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; | |
5113fec0 UB |
1153 | while (known_devices[i][QETH_DEV_MODEL_IND]) { |
1154 | if ((CARD_RDEV(card)->id.dev_type == | |
1155 | known_devices[i][QETH_DEV_TYPE_IND]) && | |
1156 | (CARD_RDEV(card)->id.dev_model == | |
1157 | known_devices[i][QETH_DEV_MODEL_IND])) { | |
1158 | card->info.type = known_devices[i][QETH_DEV_MODEL_IND]; | |
1159 | card->qdio.no_out_queues = | |
1160 | known_devices[i][QETH_QUEUE_NO_IND]; | |
1161 | card->info.is_multicast_different = | |
1162 | known_devices[i][QETH_MULTICAST_IND]; | |
1163 | qeth_get_channel_path_desc(card); | |
4a71df50 FB |
1164 | return 0; |
1165 | } | |
1166 | i++; | |
1167 | } | |
1168 | card->info.type = QETH_CARD_TYPE_UNKNOWN; | |
74eacdb9 FB |
1169 | dev_err(&card->gdev->dev, "The adapter hardware is of an " |
1170 | "unknown type\n"); | |
4a71df50 FB |
1171 | return -ENOENT; |
1172 | } | |
1173 | ||
1174 | static int qeth_clear_channel(struct qeth_channel *channel) | |
1175 | { | |
1176 | unsigned long flags; | |
1177 | struct qeth_card *card; | |
1178 | int rc; | |
1179 | ||
4a71df50 | 1180 | card = CARD_FROM_CDEV(channel->ccwdev); |
847a50fd | 1181 | QETH_CARD_TEXT(card, 3, "clearch"); |
4a71df50 FB |
1182 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
1183 | rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM); | |
1184 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); | |
1185 | ||
1186 | if (rc) | |
1187 | return rc; | |
1188 | rc = wait_event_interruptible_timeout(card->wait_q, | |
1189 | channel->state == CH_STATE_STOPPED, QETH_TIMEOUT); | |
1190 | if (rc == -ERESTARTSYS) | |
1191 | return rc; | |
1192 | if (channel->state != CH_STATE_STOPPED) | |
1193 | return -ETIME; | |
1194 | channel->state = CH_STATE_DOWN; | |
1195 | return 0; | |
1196 | } | |
1197 | ||
1198 | static int qeth_halt_channel(struct qeth_channel *channel) | |
1199 | { | |
1200 | unsigned long flags; | |
1201 | struct qeth_card *card; | |
1202 | int rc; | |
1203 | ||
4a71df50 | 1204 | card = CARD_FROM_CDEV(channel->ccwdev); |
847a50fd | 1205 | QETH_CARD_TEXT(card, 3, "haltch"); |
4a71df50 FB |
1206 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
1207 | rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM); | |
1208 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); | |
1209 | ||
1210 | if (rc) | |
1211 | return rc; | |
1212 | rc = wait_event_interruptible_timeout(card->wait_q, | |
1213 | channel->state == CH_STATE_HALTED, QETH_TIMEOUT); | |
1214 | if (rc == -ERESTARTSYS) | |
1215 | return rc; | |
1216 | if (channel->state != CH_STATE_HALTED) | |
1217 | return -ETIME; | |
1218 | return 0; | |
1219 | } | |
1220 | ||
1221 | static int qeth_halt_channels(struct qeth_card *card) | |
1222 | { | |
1223 | int rc1 = 0, rc2 = 0, rc3 = 0; | |
1224 | ||
847a50fd | 1225 | QETH_CARD_TEXT(card, 3, "haltchs"); |
4a71df50 FB |
1226 | rc1 = qeth_halt_channel(&card->read); |
1227 | rc2 = qeth_halt_channel(&card->write); | |
1228 | rc3 = qeth_halt_channel(&card->data); | |
1229 | if (rc1) | |
1230 | return rc1; | |
1231 | if (rc2) | |
1232 | return rc2; | |
1233 | return rc3; | |
1234 | } | |
1235 | ||
1236 | static int qeth_clear_channels(struct qeth_card *card) | |
1237 | { | |
1238 | int rc1 = 0, rc2 = 0, rc3 = 0; | |
1239 | ||
847a50fd | 1240 | QETH_CARD_TEXT(card, 3, "clearchs"); |
4a71df50 FB |
1241 | rc1 = qeth_clear_channel(&card->read); |
1242 | rc2 = qeth_clear_channel(&card->write); | |
1243 | rc3 = qeth_clear_channel(&card->data); | |
1244 | if (rc1) | |
1245 | return rc1; | |
1246 | if (rc2) | |
1247 | return rc2; | |
1248 | return rc3; | |
1249 | } | |
1250 | ||
1251 | static int qeth_clear_halt_card(struct qeth_card *card, int halt) | |
1252 | { | |
1253 | int rc = 0; | |
1254 | ||
847a50fd | 1255 | QETH_CARD_TEXT(card, 3, "clhacrd"); |
4a71df50 FB |
1256 | |
1257 | if (halt) | |
1258 | rc = qeth_halt_channels(card); | |
1259 | if (rc) | |
1260 | return rc; | |
1261 | return qeth_clear_channels(card); | |
1262 | } | |
1263 | ||
1264 | int qeth_qdio_clear_card(struct qeth_card *card, int use_halt) | |
1265 | { | |
1266 | int rc = 0; | |
1267 | ||
847a50fd | 1268 | QETH_CARD_TEXT(card, 3, "qdioclr"); |
4a71df50 FB |
1269 | switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED, |
1270 | QETH_QDIO_CLEANING)) { | |
1271 | case QETH_QDIO_ESTABLISHED: | |
1272 | if (card->info.type == QETH_CARD_TYPE_IQD) | |
cc961d40 | 1273 | rc = qdio_shutdown(CARD_DDEV(card), |
4a71df50 FB |
1274 | QDIO_FLAG_CLEANUP_USING_HALT); |
1275 | else | |
cc961d40 | 1276 | rc = qdio_shutdown(CARD_DDEV(card), |
4a71df50 FB |
1277 | QDIO_FLAG_CLEANUP_USING_CLEAR); |
1278 | if (rc) | |
847a50fd | 1279 | QETH_CARD_TEXT_(card, 3, "1err%d", rc); |
cc961d40 | 1280 | qdio_free(CARD_DDEV(card)); |
4a71df50 FB |
1281 | atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); |
1282 | break; | |
1283 | case QETH_QDIO_CLEANING: | |
1284 | return rc; | |
1285 | default: | |
1286 | break; | |
1287 | } | |
1288 | rc = qeth_clear_halt_card(card, use_halt); | |
1289 | if (rc) | |
847a50fd | 1290 | QETH_CARD_TEXT_(card, 3, "2err%d", rc); |
4a71df50 FB |
1291 | card->state = CARD_STATE_DOWN; |
1292 | return rc; | |
1293 | } | |
1294 | EXPORT_SYMBOL_GPL(qeth_qdio_clear_card); | |
1295 | ||
1296 | static int qeth_read_conf_data(struct qeth_card *card, void **buffer, | |
1297 | int *length) | |
1298 | { | |
1299 | struct ciw *ciw; | |
1300 | char *rcd_buf; | |
1301 | int ret; | |
1302 | struct qeth_channel *channel = &card->data; | |
1303 | unsigned long flags; | |
1304 | ||
1305 | /* | |
1306 | * scan for RCD command in extended SenseID data | |
1307 | */ | |
1308 | ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD); | |
1309 | if (!ciw || ciw->cmd == 0) | |
1310 | return -EOPNOTSUPP; | |
1311 | rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA); | |
1312 | if (!rcd_buf) | |
1313 | return -ENOMEM; | |
1314 | ||
1315 | channel->ccw.cmd_code = ciw->cmd; | |
1316 | channel->ccw.cda = (__u32) __pa(rcd_buf); | |
1317 | channel->ccw.count = ciw->count; | |
1318 | channel->ccw.flags = CCW_FLAG_SLI; | |
1319 | channel->state = CH_STATE_RCD; | |
1320 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); | |
1321 | ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw, | |
1322 | QETH_RCD_PARM, LPM_ANYPATH, 0, | |
1323 | QETH_RCD_TIMEOUT); | |
1324 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); | |
1325 | if (!ret) | |
1326 | wait_event(card->wait_q, | |
1327 | (channel->state == CH_STATE_RCD_DONE || | |
1328 | channel->state == CH_STATE_DOWN)); | |
1329 | if (channel->state == CH_STATE_DOWN) | |
1330 | ret = -EIO; | |
1331 | else | |
1332 | channel->state = CH_STATE_DOWN; | |
1333 | if (ret) { | |
1334 | kfree(rcd_buf); | |
1335 | *buffer = NULL; | |
1336 | *length = 0; | |
1337 | } else { | |
1338 | *length = ciw->count; | |
1339 | *buffer = rcd_buf; | |
1340 | } | |
1341 | return ret; | |
1342 | } | |
1343 | ||
a60389ab | 1344 | static void qeth_configure_unitaddr(struct qeth_card *card, char *prcd) |
4a71df50 | 1345 | { |
a60389ab | 1346 | QETH_DBF_TEXT(SETUP, 2, "cfgunit"); |
4a71df50 FB |
1347 | card->info.chpid = prcd[30]; |
1348 | card->info.unit_addr2 = prcd[31]; | |
1349 | card->info.cula = prcd[63]; | |
1350 | card->info.guestlan = ((prcd[0x10] == _ascebc['V']) && | |
1351 | (prcd[0x11] == _ascebc['M'])); | |
a60389ab EL |
1352 | } |
1353 | ||
1354 | static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd) | |
1355 | { | |
1356 | QETH_DBF_TEXT(SETUP, 2, "cfgblkt"); | |
1357 | ||
1358 | if (prcd[74] == 0xF0 && prcd[75] == 0xF0 && prcd[76] == 0xF5) { | |
1359 | card->info.blkt.time_total = 250; | |
1360 | card->info.blkt.inter_packet = 5; | |
1361 | card->info.blkt.inter_packet_jumbo = 15; | |
1362 | } else { | |
1363 | card->info.blkt.time_total = 0; | |
1364 | card->info.blkt.inter_packet = 0; | |
1365 | card->info.blkt.inter_packet_jumbo = 0; | |
1366 | } | |
4a71df50 FB |
1367 | } |
1368 | ||
1369 | static void qeth_init_tokens(struct qeth_card *card) | |
1370 | { | |
1371 | card->token.issuer_rm_w = 0x00010103UL; | |
1372 | card->token.cm_filter_w = 0x00010108UL; | |
1373 | card->token.cm_connection_w = 0x0001010aUL; | |
1374 | card->token.ulp_filter_w = 0x0001010bUL; | |
1375 | card->token.ulp_connection_w = 0x0001010dUL; | |
1376 | } | |
1377 | ||
1378 | static void qeth_init_func_level(struct qeth_card *card) | |
1379 | { | |
5113fec0 UB |
1380 | switch (card->info.type) { |
1381 | case QETH_CARD_TYPE_IQD: | |
6298263a | 1382 | card->info.func_level = QETH_IDX_FUNC_LEVEL_IQD; |
5113fec0 UB |
1383 | break; |
1384 | case QETH_CARD_TYPE_OSD: | |
0132951e | 1385 | case QETH_CARD_TYPE_OSN: |
5113fec0 UB |
1386 | card->info.func_level = QETH_IDX_FUNC_LEVEL_OSD; |
1387 | break; | |
1388 | default: | |
1389 | break; | |
4a71df50 FB |
1390 | } |
1391 | } | |
1392 | ||
4a71df50 FB |
1393 | static int qeth_idx_activate_get_answer(struct qeth_channel *channel, |
1394 | void (*idx_reply_cb)(struct qeth_channel *, | |
1395 | struct qeth_cmd_buffer *)) | |
1396 | { | |
1397 | struct qeth_cmd_buffer *iob; | |
1398 | unsigned long flags; | |
1399 | int rc; | |
1400 | struct qeth_card *card; | |
1401 | ||
d11ba0c4 | 1402 | QETH_DBF_TEXT(SETUP, 2, "idxanswr"); |
4a71df50 FB |
1403 | card = CARD_FROM_CDEV(channel->ccwdev); |
1404 | iob = qeth_get_buffer(channel); | |
1405 | iob->callback = idx_reply_cb; | |
1406 | memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1)); | |
1407 | channel->ccw.count = QETH_BUFSIZE; | |
1408 | channel->ccw.cda = (__u32) __pa(iob->data); | |
1409 | ||
1410 | wait_event(card->wait_q, | |
1411 | atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); | |
d11ba0c4 | 1412 | QETH_DBF_TEXT(SETUP, 6, "noirqpnd"); |
4a71df50 FB |
1413 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
1414 | rc = ccw_device_start(channel->ccwdev, | |
1415 | &channel->ccw, (addr_t) iob, 0, 0); | |
1416 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); | |
1417 | ||
1418 | if (rc) { | |
14cc21b6 | 1419 | QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc); |
d11ba0c4 | 1420 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
4a71df50 FB |
1421 | atomic_set(&channel->irq_pending, 0); |
1422 | wake_up(&card->wait_q); | |
1423 | return rc; | |
1424 | } | |
1425 | rc = wait_event_interruptible_timeout(card->wait_q, | |
1426 | channel->state == CH_STATE_UP, QETH_TIMEOUT); | |
1427 | if (rc == -ERESTARTSYS) | |
1428 | return rc; | |
1429 | if (channel->state != CH_STATE_UP) { | |
1430 | rc = -ETIME; | |
d11ba0c4 | 1431 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
4a71df50 FB |
1432 | qeth_clear_cmd_buffers(channel); |
1433 | } else | |
1434 | rc = 0; | |
1435 | return rc; | |
1436 | } | |
1437 | ||
1438 | static int qeth_idx_activate_channel(struct qeth_channel *channel, | |
1439 | void (*idx_reply_cb)(struct qeth_channel *, | |
1440 | struct qeth_cmd_buffer *)) | |
1441 | { | |
1442 | struct qeth_card *card; | |
1443 | struct qeth_cmd_buffer *iob; | |
1444 | unsigned long flags; | |
1445 | __u16 temp; | |
1446 | __u8 tmp; | |
1447 | int rc; | |
f06f6f32 | 1448 | struct ccw_dev_id temp_devid; |
4a71df50 FB |
1449 | |
1450 | card = CARD_FROM_CDEV(channel->ccwdev); | |
1451 | ||
d11ba0c4 | 1452 | QETH_DBF_TEXT(SETUP, 2, "idxactch"); |
4a71df50 FB |
1453 | |
1454 | iob = qeth_get_buffer(channel); | |
1455 | iob->callback = idx_reply_cb; | |
1456 | memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1)); | |
1457 | channel->ccw.count = IDX_ACTIVATE_SIZE; | |
1458 | channel->ccw.cda = (__u32) __pa(iob->data); | |
1459 | if (channel == &card->write) { | |
1460 | memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE); | |
1461 | memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), | |
1462 | &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); | |
1463 | card->seqno.trans_hdr++; | |
1464 | } else { | |
1465 | memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE); | |
1466 | memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), | |
1467 | &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); | |
1468 | } | |
1469 | tmp = ((__u8)card->info.portno) | 0x80; | |
1470 | memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1); | |
1471 | memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), | |
1472 | &card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH); | |
1473 | memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data), | |
1474 | &card->info.func_level, sizeof(__u16)); | |
f06f6f32 CH |
1475 | ccw_device_get_id(CARD_DDEV(card), &temp_devid); |
1476 | memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp_devid.devno, 2); | |
4a71df50 FB |
1477 | temp = (card->info.cula << 8) + card->info.unit_addr2; |
1478 | memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2); | |
1479 | ||
1480 | wait_event(card->wait_q, | |
1481 | atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); | |
d11ba0c4 | 1482 | QETH_DBF_TEXT(SETUP, 6, "noirqpnd"); |
4a71df50 FB |
1483 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
1484 | rc = ccw_device_start(channel->ccwdev, | |
1485 | &channel->ccw, (addr_t) iob, 0, 0); | |
1486 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); | |
1487 | ||
1488 | if (rc) { | |
14cc21b6 FB |
1489 | QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n", |
1490 | rc); | |
d11ba0c4 | 1491 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
1492 | atomic_set(&channel->irq_pending, 0); |
1493 | wake_up(&card->wait_q); | |
1494 | return rc; | |
1495 | } | |
1496 | rc = wait_event_interruptible_timeout(card->wait_q, | |
1497 | channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT); | |
1498 | if (rc == -ERESTARTSYS) | |
1499 | return rc; | |
1500 | if (channel->state != CH_STATE_ACTIVATING) { | |
74eacdb9 FB |
1501 | dev_warn(&channel->ccwdev->dev, "The qeth device driver" |
1502 | " failed to recover an error on the device\n"); | |
1503 | QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n", | |
1504 | dev_name(&channel->ccwdev->dev)); | |
d11ba0c4 | 1505 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME); |
4a71df50 FB |
1506 | qeth_clear_cmd_buffers(channel); |
1507 | return -ETIME; | |
1508 | } | |
1509 | return qeth_idx_activate_get_answer(channel, idx_reply_cb); | |
1510 | } | |
1511 | ||
1512 | static int qeth_peer_func_level(int level) | |
1513 | { | |
1514 | if ((level & 0xff) == 8) | |
1515 | return (level & 0xff) + 0x400; | |
1516 | if (((level >> 8) & 3) == 1) | |
1517 | return (level & 0xff) + 0x200; | |
1518 | return level; | |
1519 | } | |
1520 | ||
1521 | static void qeth_idx_write_cb(struct qeth_channel *channel, | |
1522 | struct qeth_cmd_buffer *iob) | |
1523 | { | |
1524 | struct qeth_card *card; | |
1525 | __u16 temp; | |
1526 | ||
d11ba0c4 | 1527 | QETH_DBF_TEXT(SETUP , 2, "idxwrcb"); |
4a71df50 FB |
1528 | |
1529 | if (channel->state == CH_STATE_DOWN) { | |
1530 | channel->state = CH_STATE_ACTIVATING; | |
1531 | goto out; | |
1532 | } | |
1533 | card = CARD_FROM_CDEV(channel->ccwdev); | |
1534 | ||
1535 | if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { | |
5113fec0 | 1536 | if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == QETH_IDX_ACT_ERR_EXCL) |
74eacdb9 FB |
1537 | dev_err(&card->write.ccwdev->dev, |
1538 | "The adapter is used exclusively by another " | |
1539 | "host\n"); | |
4a71df50 | 1540 | else |
74eacdb9 FB |
1541 | QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel:" |
1542 | " negative reply\n", | |
1543 | dev_name(&card->write.ccwdev->dev)); | |
4a71df50 FB |
1544 | goto out; |
1545 | } | |
1546 | memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); | |
1547 | if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) { | |
74eacdb9 FB |
1548 | QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel: " |
1549 | "function level mismatch (sent: 0x%x, received: " | |
1550 | "0x%x)\n", dev_name(&card->write.ccwdev->dev), | |
1551 | card->info.func_level, temp); | |
4a71df50 FB |
1552 | goto out; |
1553 | } | |
1554 | channel->state = CH_STATE_UP; | |
1555 | out: | |
1556 | qeth_release_buffer(channel, iob); | |
1557 | } | |
1558 | ||
1559 | static void qeth_idx_read_cb(struct qeth_channel *channel, | |
1560 | struct qeth_cmd_buffer *iob) | |
1561 | { | |
1562 | struct qeth_card *card; | |
1563 | __u16 temp; | |
1564 | ||
d11ba0c4 | 1565 | QETH_DBF_TEXT(SETUP , 2, "idxrdcb"); |
4a71df50 FB |
1566 | if (channel->state == CH_STATE_DOWN) { |
1567 | channel->state = CH_STATE_ACTIVATING; | |
1568 | goto out; | |
1569 | } | |
1570 | ||
1571 | card = CARD_FROM_CDEV(channel->ccwdev); | |
5113fec0 | 1572 | if (qeth_check_idx_response(card, iob->data)) |
4a71df50 FB |
1573 | goto out; |
1574 | ||
1575 | if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { | |
5113fec0 UB |
1576 | switch (QETH_IDX_ACT_CAUSE_CODE(iob->data)) { |
1577 | case QETH_IDX_ACT_ERR_EXCL: | |
74eacdb9 FB |
1578 | dev_err(&card->write.ccwdev->dev, |
1579 | "The adapter is used exclusively by another " | |
1580 | "host\n"); | |
5113fec0 UB |
1581 | break; |
1582 | case QETH_IDX_ACT_ERR_AUTH: | |
01fc3e86 | 1583 | case QETH_IDX_ACT_ERR_AUTH_USER: |
5113fec0 UB |
1584 | dev_err(&card->read.ccwdev->dev, |
1585 | "Setting the device online failed because of " | |
01fc3e86 | 1586 | "insufficient authorization\n"); |
5113fec0 UB |
1587 | break; |
1588 | default: | |
74eacdb9 FB |
1589 | QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel:" |
1590 | " negative reply\n", | |
1591 | dev_name(&card->read.ccwdev->dev)); | |
5113fec0 | 1592 | } |
01fc3e86 UB |
1593 | QETH_CARD_TEXT_(card, 2, "idxread%c", |
1594 | QETH_IDX_ACT_CAUSE_CODE(iob->data)); | |
4a71df50 FB |
1595 | goto out; |
1596 | } | |
1597 | ||
1598 | /** | |
5113fec0 UB |
1599 | * * temporary fix for microcode bug |
1600 | * * to revert it,replace OR by AND | |
1601 | * */ | |
4a71df50 | 1602 | if ((!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) || |
5113fec0 | 1603 | (card->info.type == QETH_CARD_TYPE_OSD)) |
4a71df50 FB |
1604 | card->info.portname_required = 1; |
1605 | ||
1606 | memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); | |
1607 | if (temp != qeth_peer_func_level(card->info.func_level)) { | |
74eacdb9 FB |
1608 | QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel: function " |
1609 | "level mismatch (sent: 0x%x, received: 0x%x)\n", | |
1610 | dev_name(&card->read.ccwdev->dev), | |
1611 | card->info.func_level, temp); | |
4a71df50 FB |
1612 | goto out; |
1613 | } | |
1614 | memcpy(&card->token.issuer_rm_r, | |
1615 | QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), | |
1616 | QETH_MPC_TOKEN_LENGTH); | |
1617 | memcpy(&card->info.mcl_level[0], | |
1618 | QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH); | |
1619 | channel->state = CH_STATE_UP; | |
1620 | out: | |
1621 | qeth_release_buffer(channel, iob); | |
1622 | } | |
1623 | ||
1624 | void qeth_prepare_control_data(struct qeth_card *card, int len, | |
1625 | struct qeth_cmd_buffer *iob) | |
1626 | { | |
1627 | qeth_setup_ccw(&card->write, iob->data, len); | |
1628 | iob->callback = qeth_release_buffer; | |
1629 | ||
1630 | memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), | |
1631 | &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); | |
1632 | card->seqno.trans_hdr++; | |
1633 | memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data), | |
1634 | &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH); | |
1635 | card->seqno.pdu_hdr++; | |
1636 | memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data), | |
1637 | &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH); | |
d11ba0c4 | 1638 | QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN); |
4a71df50 FB |
1639 | } |
1640 | EXPORT_SYMBOL_GPL(qeth_prepare_control_data); | |
1641 | ||
1642 | int qeth_send_control_data(struct qeth_card *card, int len, | |
1643 | struct qeth_cmd_buffer *iob, | |
1644 | int (*reply_cb)(struct qeth_card *, struct qeth_reply *, | |
1645 | unsigned long), | |
1646 | void *reply_param) | |
1647 | { | |
1648 | int rc; | |
1649 | unsigned long flags; | |
1650 | struct qeth_reply *reply = NULL; | |
7834cd5a | 1651 | unsigned long timeout, event_timeout; |
5b54e16f | 1652 | struct qeth_ipa_cmd *cmd; |
4a71df50 | 1653 | |
847a50fd | 1654 | QETH_CARD_TEXT(card, 2, "sendctl"); |
4a71df50 | 1655 | |
908abbb5 UB |
1656 | if (card->read_or_write_problem) { |
1657 | qeth_release_buffer(iob->channel, iob); | |
1658 | return -EIO; | |
1659 | } | |
4a71df50 FB |
1660 | reply = qeth_alloc_reply(card); |
1661 | if (!reply) { | |
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)) | |
7834cd5a | 1680 | event_timeout = QETH_IPA_TIMEOUT; |
4a71df50 | 1681 | else |
7834cd5a HC |
1682 | event_timeout = QETH_TIMEOUT; |
1683 | timeout = jiffies + event_timeout; | |
4a71df50 | 1684 | |
847a50fd | 1685 | QETH_CARD_TEXT(card, 6, "noirqpnd"); |
4a71df50 FB |
1686 | spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); |
1687 | rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, | |
1688 | (addr_t) iob, 0, 0); | |
1689 | spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); | |
1690 | if (rc) { | |
74eacdb9 FB |
1691 | QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: " |
1692 | "ccw_device_start rc = %i\n", | |
1693 | dev_name(&card->write.ccwdev->dev), rc); | |
847a50fd | 1694 | QETH_CARD_TEXT_(card, 2, " err%d", rc); |
4a71df50 FB |
1695 | spin_lock_irqsave(&card->lock, flags); |
1696 | list_del_init(&reply->list); | |
1697 | qeth_put_reply(reply); | |
1698 | spin_unlock_irqrestore(&card->lock, flags); | |
1699 | qeth_release_buffer(iob->channel, iob); | |
1700 | atomic_set(&card->write.irq_pending, 0); | |
1701 | wake_up(&card->wait_q); | |
1702 | return rc; | |
1703 | } | |
5b54e16f FB |
1704 | |
1705 | /* we have only one long running ipassist, since we can ensure | |
1706 | process context of this command we can sleep */ | |
1707 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
1708 | if ((cmd->hdr.command == IPA_CMD_SETIP) && | |
1709 | (cmd->hdr.prot_version == QETH_PROT_IPV4)) { | |
1710 | if (!wait_event_timeout(reply->wait_q, | |
7834cd5a | 1711 | atomic_read(&reply->received), event_timeout)) |
5b54e16f FB |
1712 | goto time_err; |
1713 | } else { | |
1714 | while (!atomic_read(&reply->received)) { | |
1715 | if (time_after(jiffies, timeout)) | |
1716 | goto time_err; | |
1717 | cpu_relax(); | |
1718 | }; | |
1719 | } | |
1720 | ||
1721 | rc = reply->rc; | |
1722 | qeth_put_reply(reply); | |
1723 | return rc; | |
1724 | ||
1725 | time_err: | |
1726 | spin_lock_irqsave(&reply->card->lock, flags); | |
1727 | list_del_init(&reply->list); | |
1728 | spin_unlock_irqrestore(&reply->card->lock, flags); | |
1729 | reply->rc = -ETIME; | |
1730 | atomic_inc(&reply->received); | |
908abbb5 UB |
1731 | atomic_set(&card->write.irq_pending, 0); |
1732 | qeth_release_buffer(iob->channel, iob); | |
1733 | card->write.buf_no = (card->write.buf_no + 1) % QETH_CMD_BUFFER_NO; | |
5b54e16f | 1734 | wake_up(&reply->wait_q); |
4a71df50 FB |
1735 | rc = reply->rc; |
1736 | qeth_put_reply(reply); | |
1737 | return rc; | |
1738 | } | |
1739 | EXPORT_SYMBOL_GPL(qeth_send_control_data); | |
1740 | ||
1741 | static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply, | |
1742 | unsigned long data) | |
1743 | { | |
1744 | struct qeth_cmd_buffer *iob; | |
1745 | ||
d11ba0c4 | 1746 | QETH_DBF_TEXT(SETUP, 2, "cmenblcb"); |
4a71df50 FB |
1747 | |
1748 | iob = (struct qeth_cmd_buffer *) data; | |
1749 | memcpy(&card->token.cm_filter_r, | |
1750 | QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data), | |
1751 | QETH_MPC_TOKEN_LENGTH); | |
d11ba0c4 | 1752 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
4a71df50 FB |
1753 | return 0; |
1754 | } | |
1755 | ||
1756 | static int qeth_cm_enable(struct qeth_card *card) | |
1757 | { | |
1758 | int rc; | |
1759 | struct qeth_cmd_buffer *iob; | |
1760 | ||
d11ba0c4 | 1761 | QETH_DBF_TEXT(SETUP, 2, "cmenable"); |
4a71df50 FB |
1762 | |
1763 | iob = qeth_wait_for_buffer(&card->write); | |
1764 | memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE); | |
1765 | memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data), | |
1766 | &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); | |
1767 | memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data), | |
1768 | &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH); | |
1769 | ||
1770 | rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob, | |
1771 | qeth_cm_enable_cb, NULL); | |
1772 | return rc; | |
1773 | } | |
1774 | ||
1775 | static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply, | |
1776 | unsigned long data) | |
1777 | { | |
1778 | ||
1779 | struct qeth_cmd_buffer *iob; | |
1780 | ||
d11ba0c4 | 1781 | QETH_DBF_TEXT(SETUP, 2, "cmsetpcb"); |
4a71df50 FB |
1782 | |
1783 | iob = (struct qeth_cmd_buffer *) data; | |
1784 | memcpy(&card->token.cm_connection_r, | |
1785 | QETH_CM_SETUP_RESP_DEST_ADDR(iob->data), | |
1786 | QETH_MPC_TOKEN_LENGTH); | |
d11ba0c4 | 1787 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
4a71df50 FB |
1788 | return 0; |
1789 | } | |
1790 | ||
1791 | static int qeth_cm_setup(struct qeth_card *card) | |
1792 | { | |
1793 | int rc; | |
1794 | struct qeth_cmd_buffer *iob; | |
1795 | ||
d11ba0c4 | 1796 | QETH_DBF_TEXT(SETUP, 2, "cmsetup"); |
4a71df50 FB |
1797 | |
1798 | iob = qeth_wait_for_buffer(&card->write); | |
1799 | memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE); | |
1800 | memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data), | |
1801 | &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); | |
1802 | memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data), | |
1803 | &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH); | |
1804 | memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data), | |
1805 | &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH); | |
1806 | rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob, | |
1807 | qeth_cm_setup_cb, NULL); | |
1808 | return rc; | |
1809 | ||
1810 | } | |
1811 | ||
1812 | static inline int qeth_get_initial_mtu_for_card(struct qeth_card *card) | |
1813 | { | |
1814 | switch (card->info.type) { | |
1815 | case QETH_CARD_TYPE_UNKNOWN: | |
1816 | return 1500; | |
1817 | case QETH_CARD_TYPE_IQD: | |
1818 | return card->info.max_mtu; | |
5113fec0 | 1819 | case QETH_CARD_TYPE_OSD: |
4a71df50 FB |
1820 | switch (card->info.link_type) { |
1821 | case QETH_LINK_TYPE_HSTR: | |
1822 | case QETH_LINK_TYPE_LANE_TR: | |
1823 | return 2000; | |
1824 | default: | |
1825 | return 1492; | |
1826 | } | |
5113fec0 UB |
1827 | case QETH_CARD_TYPE_OSM: |
1828 | case QETH_CARD_TYPE_OSX: | |
1829 | return 1492; | |
4a71df50 FB |
1830 | default: |
1831 | return 1500; | |
1832 | } | |
1833 | } | |
1834 | ||
1835 | static inline int qeth_get_max_mtu_for_card(int cardtype) | |
1836 | { | |
1837 | switch (cardtype) { | |
1838 | ||
1839 | case QETH_CARD_TYPE_UNKNOWN: | |
5113fec0 | 1840 | case QETH_CARD_TYPE_OSD: |
4a71df50 | 1841 | case QETH_CARD_TYPE_OSN: |
5113fec0 UB |
1842 | case QETH_CARD_TYPE_OSM: |
1843 | case QETH_CARD_TYPE_OSX: | |
4a71df50 FB |
1844 | return 61440; |
1845 | case QETH_CARD_TYPE_IQD: | |
1846 | return 57344; | |
1847 | default: | |
1848 | return 1500; | |
1849 | } | |
1850 | } | |
1851 | ||
1852 | static inline int qeth_get_mtu_out_of_mpc(int cardtype) | |
1853 | { | |
1854 | switch (cardtype) { | |
1855 | case QETH_CARD_TYPE_IQD: | |
1856 | return 1; | |
1857 | default: | |
1858 | return 0; | |
1859 | } | |
1860 | } | |
1861 | ||
1862 | static inline int qeth_get_mtu_outof_framesize(int framesize) | |
1863 | { | |
1864 | switch (framesize) { | |
1865 | case 0x4000: | |
1866 | return 8192; | |
1867 | case 0x6000: | |
1868 | return 16384; | |
1869 | case 0xa000: | |
1870 | return 32768; | |
1871 | case 0xffff: | |
1872 | return 57344; | |
1873 | default: | |
1874 | return 0; | |
1875 | } | |
1876 | } | |
1877 | ||
1878 | static inline int qeth_mtu_is_valid(struct qeth_card *card, int mtu) | |
1879 | { | |
1880 | switch (card->info.type) { | |
5113fec0 UB |
1881 | case QETH_CARD_TYPE_OSD: |
1882 | case QETH_CARD_TYPE_OSM: | |
1883 | case QETH_CARD_TYPE_OSX: | |
4a71df50 FB |
1884 | return ((mtu >= 576) && (mtu <= 61440)); |
1885 | case QETH_CARD_TYPE_IQD: | |
1886 | return ((mtu >= 576) && | |
1887 | (mtu <= card->info.max_mtu + 4096 - 32)); | |
1888 | case QETH_CARD_TYPE_OSN: | |
1889 | case QETH_CARD_TYPE_UNKNOWN: | |
1890 | default: | |
1891 | return 1; | |
1892 | } | |
1893 | } | |
1894 | ||
1895 | static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply, | |
1896 | unsigned long data) | |
1897 | { | |
1898 | ||
1899 | __u16 mtu, framesize; | |
1900 | __u16 len; | |
1901 | __u8 link_type; | |
1902 | struct qeth_cmd_buffer *iob; | |
1903 | ||
d11ba0c4 | 1904 | QETH_DBF_TEXT(SETUP, 2, "ulpenacb"); |
4a71df50 FB |
1905 | |
1906 | iob = (struct qeth_cmd_buffer *) data; | |
1907 | memcpy(&card->token.ulp_filter_r, | |
1908 | QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data), | |
1909 | QETH_MPC_TOKEN_LENGTH); | |
1910 | if (qeth_get_mtu_out_of_mpc(card->info.type)) { | |
1911 | memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2); | |
1912 | mtu = qeth_get_mtu_outof_framesize(framesize); | |
1913 | if (!mtu) { | |
1914 | iob->rc = -EINVAL; | |
d11ba0c4 | 1915 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
4a71df50 FB |
1916 | return 0; |
1917 | } | |
1918 | card->info.max_mtu = mtu; | |
1919 | card->info.initial_mtu = mtu; | |
1920 | card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE; | |
1921 | } else { | |
1922 | card->info.initial_mtu = qeth_get_initial_mtu_for_card(card); | |
1923 | card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type); | |
1924 | card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT; | |
1925 | } | |
1926 | ||
1927 | memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2); | |
1928 | if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) { | |
1929 | memcpy(&link_type, | |
1930 | QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1); | |
1931 | card->info.link_type = link_type; | |
1932 | } else | |
1933 | card->info.link_type = 0; | |
01fc3e86 | 1934 | QETH_DBF_TEXT_(SETUP, 2, "link%d", card->info.link_type); |
d11ba0c4 | 1935 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
4a71df50 FB |
1936 | return 0; |
1937 | } | |
1938 | ||
1939 | static int qeth_ulp_enable(struct qeth_card *card) | |
1940 | { | |
1941 | int rc; | |
1942 | char prot_type; | |
1943 | struct qeth_cmd_buffer *iob; | |
1944 | ||
1945 | /*FIXME: trace view callbacks*/ | |
d11ba0c4 | 1946 | QETH_DBF_TEXT(SETUP, 2, "ulpenabl"); |
4a71df50 FB |
1947 | |
1948 | iob = qeth_wait_for_buffer(&card->write); | |
1949 | memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE); | |
1950 | ||
1951 | *(QETH_ULP_ENABLE_LINKNUM(iob->data)) = | |
1952 | (__u8) card->info.portno; | |
1953 | if (card->options.layer2) | |
1954 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
1955 | prot_type = QETH_PROT_OSN2; | |
1956 | else | |
1957 | prot_type = QETH_PROT_LAYER2; | |
1958 | else | |
1959 | prot_type = QETH_PROT_TCPIP; | |
1960 | ||
1961 | memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1); | |
1962 | memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data), | |
1963 | &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); | |
1964 | memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data), | |
1965 | &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH); | |
1966 | memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data), | |
1967 | card->info.portname, 9); | |
1968 | rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob, | |
1969 | qeth_ulp_enable_cb, NULL); | |
1970 | return rc; | |
1971 | ||
1972 | } | |
1973 | ||
1974 | static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply, | |
1975 | unsigned long data) | |
1976 | { | |
1977 | struct qeth_cmd_buffer *iob; | |
65a1f898 | 1978 | int rc = 0; |
4a71df50 | 1979 | |
d11ba0c4 | 1980 | QETH_DBF_TEXT(SETUP, 2, "ulpstpcb"); |
4a71df50 FB |
1981 | |
1982 | iob = (struct qeth_cmd_buffer *) data; | |
1983 | memcpy(&card->token.ulp_connection_r, | |
1984 | QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), | |
1985 | QETH_MPC_TOKEN_LENGTH); | |
65a1f898 UB |
1986 | if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), |
1987 | 3)) { | |
1988 | QETH_DBF_TEXT(SETUP, 2, "olmlimit"); | |
1989 | dev_err(&card->gdev->dev, "A connection could not be " | |
1990 | "established because of an OLM limit\n"); | |
bbb822a8 | 1991 | iob->rc = -EMLINK; |
65a1f898 | 1992 | } |
d11ba0c4 | 1993 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
65a1f898 | 1994 | return rc; |
4a71df50 FB |
1995 | } |
1996 | ||
1997 | static int qeth_ulp_setup(struct qeth_card *card) | |
1998 | { | |
1999 | int rc; | |
2000 | __u16 temp; | |
2001 | struct qeth_cmd_buffer *iob; | |
2002 | struct ccw_dev_id dev_id; | |
2003 | ||
d11ba0c4 | 2004 | QETH_DBF_TEXT(SETUP, 2, "ulpsetup"); |
4a71df50 FB |
2005 | |
2006 | iob = qeth_wait_for_buffer(&card->write); | |
2007 | memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE); | |
2008 | ||
2009 | memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data), | |
2010 | &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); | |
2011 | memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data), | |
2012 | &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH); | |
2013 | memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data), | |
2014 | &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH); | |
2015 | ||
2016 | ccw_device_get_id(CARD_DDEV(card), &dev_id); | |
2017 | memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2); | |
2018 | temp = (card->info.cula << 8) + card->info.unit_addr2; | |
2019 | memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2); | |
2020 | rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob, | |
2021 | qeth_ulp_setup_cb, NULL); | |
2022 | return rc; | |
2023 | } | |
2024 | ||
2025 | static int qeth_alloc_qdio_buffers(struct qeth_card *card) | |
2026 | { | |
2027 | int i, j; | |
2028 | ||
d11ba0c4 | 2029 | QETH_DBF_TEXT(SETUP, 2, "allcqdbf"); |
4a71df50 FB |
2030 | |
2031 | if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED, | |
2032 | QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED) | |
2033 | return 0; | |
2034 | ||
2035 | card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q), | |
508b3c4f | 2036 | GFP_KERNEL); |
4a71df50 FB |
2037 | if (!card->qdio.in_q) |
2038 | goto out_nomem; | |
d11ba0c4 PT |
2039 | QETH_DBF_TEXT(SETUP, 2, "inq"); |
2040 | QETH_DBF_HEX(SETUP, 2, &card->qdio.in_q, sizeof(void *)); | |
4a71df50 FB |
2041 | memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q)); |
2042 | /* give inbound qeth_qdio_buffers their qdio_buffers */ | |
2043 | for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) | |
2044 | card->qdio.in_q->bufs[i].buffer = | |
2045 | &card->qdio.in_q->qdio_bufs[i]; | |
2046 | /* inbound buffer pool */ | |
2047 | if (qeth_alloc_buffer_pool(card)) | |
2048 | goto out_freeinq; | |
2049 | /* outbound */ | |
2050 | card->qdio.out_qs = | |
2051 | kmalloc(card->qdio.no_out_queues * | |
2052 | sizeof(struct qeth_qdio_out_q *), GFP_KERNEL); | |
2053 | if (!card->qdio.out_qs) | |
2054 | goto out_freepool; | |
2055 | for (i = 0; i < card->qdio.no_out_queues; ++i) { | |
2056 | card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q), | |
508b3c4f | 2057 | GFP_KERNEL); |
4a71df50 FB |
2058 | if (!card->qdio.out_qs[i]) |
2059 | goto out_freeoutq; | |
d11ba0c4 PT |
2060 | QETH_DBF_TEXT_(SETUP, 2, "outq %i", i); |
2061 | QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *)); | |
4a71df50 FB |
2062 | memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q)); |
2063 | card->qdio.out_qs[i]->queue_no = i; | |
2064 | /* give outbound qeth_qdio_buffers their qdio_buffers */ | |
2065 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { | |
2066 | card->qdio.out_qs[i]->bufs[j].buffer = | |
2067 | &card->qdio.out_qs[i]->qdio_bufs[j]; | |
2068 | skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j]. | |
2069 | skb_list); | |
2070 | lockdep_set_class( | |
2071 | &card->qdio.out_qs[i]->bufs[j].skb_list.lock, | |
2072 | &qdio_out_skb_queue_key); | |
2073 | INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list); | |
2074 | } | |
2075 | } | |
2076 | return 0; | |
2077 | ||
2078 | out_freeoutq: | |
2079 | while (i > 0) | |
2080 | kfree(card->qdio.out_qs[--i]); | |
2081 | kfree(card->qdio.out_qs); | |
2082 | card->qdio.out_qs = NULL; | |
2083 | out_freepool: | |
2084 | qeth_free_buffer_pool(card); | |
2085 | out_freeinq: | |
2086 | kfree(card->qdio.in_q); | |
2087 | card->qdio.in_q = NULL; | |
2088 | out_nomem: | |
2089 | atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); | |
2090 | return -ENOMEM; | |
2091 | } | |
2092 | ||
2093 | static void qeth_create_qib_param_field(struct qeth_card *card, | |
2094 | char *param_field) | |
2095 | { | |
2096 | ||
2097 | param_field[0] = _ascebc['P']; | |
2098 | param_field[1] = _ascebc['C']; | |
2099 | param_field[2] = _ascebc['I']; | |
2100 | param_field[3] = _ascebc['T']; | |
2101 | *((unsigned int *) (¶m_field[4])) = QETH_PCI_THRESHOLD_A(card); | |
2102 | *((unsigned int *) (¶m_field[8])) = QETH_PCI_THRESHOLD_B(card); | |
2103 | *((unsigned int *) (¶m_field[12])) = QETH_PCI_TIMER_VALUE(card); | |
2104 | } | |
2105 | ||
2106 | static void qeth_create_qib_param_field_blkt(struct qeth_card *card, | |
2107 | char *param_field) | |
2108 | { | |
2109 | param_field[16] = _ascebc['B']; | |
2110 | param_field[17] = _ascebc['L']; | |
2111 | param_field[18] = _ascebc['K']; | |
2112 | param_field[19] = _ascebc['T']; | |
2113 | *((unsigned int *) (¶m_field[20])) = card->info.blkt.time_total; | |
2114 | *((unsigned int *) (¶m_field[24])) = card->info.blkt.inter_packet; | |
2115 | *((unsigned int *) (¶m_field[28])) = | |
2116 | card->info.blkt.inter_packet_jumbo; | |
2117 | } | |
2118 | ||
2119 | static int qeth_qdio_activate(struct qeth_card *card) | |
2120 | { | |
d11ba0c4 | 2121 | QETH_DBF_TEXT(SETUP, 3, "qdioact"); |
779e6e1c | 2122 | return qdio_activate(CARD_DDEV(card)); |
4a71df50 FB |
2123 | } |
2124 | ||
2125 | static int qeth_dm_act(struct qeth_card *card) | |
2126 | { | |
2127 | int rc; | |
2128 | struct qeth_cmd_buffer *iob; | |
2129 | ||
d11ba0c4 | 2130 | QETH_DBF_TEXT(SETUP, 2, "dmact"); |
4a71df50 FB |
2131 | |
2132 | iob = qeth_wait_for_buffer(&card->write); | |
2133 | memcpy(iob->data, DM_ACT, DM_ACT_SIZE); | |
2134 | ||
2135 | memcpy(QETH_DM_ACT_DEST_ADDR(iob->data), | |
2136 | &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); | |
2137 | memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data), | |
2138 | &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); | |
2139 | rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL); | |
2140 | return rc; | |
2141 | } | |
2142 | ||
2143 | static int qeth_mpc_initialize(struct qeth_card *card) | |
2144 | { | |
2145 | int rc; | |
2146 | ||
d11ba0c4 | 2147 | QETH_DBF_TEXT(SETUP, 2, "mpcinit"); |
4a71df50 FB |
2148 | |
2149 | rc = qeth_issue_next_read(card); | |
2150 | if (rc) { | |
d11ba0c4 | 2151 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
2152 | return rc; |
2153 | } | |
2154 | rc = qeth_cm_enable(card); | |
2155 | if (rc) { | |
d11ba0c4 | 2156 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
4a71df50 FB |
2157 | goto out_qdio; |
2158 | } | |
2159 | rc = qeth_cm_setup(card); | |
2160 | if (rc) { | |
d11ba0c4 | 2161 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
4a71df50 FB |
2162 | goto out_qdio; |
2163 | } | |
2164 | rc = qeth_ulp_enable(card); | |
2165 | if (rc) { | |
d11ba0c4 | 2166 | QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); |
4a71df50 FB |
2167 | goto out_qdio; |
2168 | } | |
2169 | rc = qeth_ulp_setup(card); | |
2170 | if (rc) { | |
d11ba0c4 | 2171 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); |
4a71df50 FB |
2172 | goto out_qdio; |
2173 | } | |
2174 | rc = qeth_alloc_qdio_buffers(card); | |
2175 | if (rc) { | |
d11ba0c4 | 2176 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); |
4a71df50 FB |
2177 | goto out_qdio; |
2178 | } | |
2179 | rc = qeth_qdio_establish(card); | |
2180 | if (rc) { | |
d11ba0c4 | 2181 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); |
4a71df50 FB |
2182 | qeth_free_qdio_buffers(card); |
2183 | goto out_qdio; | |
2184 | } | |
2185 | rc = qeth_qdio_activate(card); | |
2186 | if (rc) { | |
d11ba0c4 | 2187 | QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc); |
4a71df50 FB |
2188 | goto out_qdio; |
2189 | } | |
2190 | rc = qeth_dm_act(card); | |
2191 | if (rc) { | |
d11ba0c4 | 2192 | QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc); |
4a71df50 FB |
2193 | goto out_qdio; |
2194 | } | |
2195 | ||
2196 | return 0; | |
2197 | out_qdio: | |
2198 | qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD); | |
2199 | return rc; | |
2200 | } | |
2201 | ||
2202 | static void qeth_print_status_with_portname(struct qeth_card *card) | |
2203 | { | |
2204 | char dbf_text[15]; | |
2205 | int i; | |
2206 | ||
2207 | sprintf(dbf_text, "%s", card->info.portname + 1); | |
2208 | for (i = 0; i < 8; i++) | |
2209 | dbf_text[i] = | |
2210 | (char) _ebcasc[(__u8) dbf_text[i]]; | |
2211 | dbf_text[8] = 0; | |
74eacdb9 | 2212 | dev_info(&card->gdev->dev, "Device is a%s card%s%s%s\n" |
4a71df50 | 2213 | "with link type %s (portname: %s)\n", |
4a71df50 FB |
2214 | qeth_get_cardname(card), |
2215 | (card->info.mcl_level[0]) ? " (level: " : "", | |
2216 | (card->info.mcl_level[0]) ? card->info.mcl_level : "", | |
2217 | (card->info.mcl_level[0]) ? ")" : "", | |
2218 | qeth_get_cardname_short(card), | |
2219 | dbf_text); | |
2220 | ||
2221 | } | |
2222 | ||
2223 | static void qeth_print_status_no_portname(struct qeth_card *card) | |
2224 | { | |
2225 | if (card->info.portname[0]) | |
74eacdb9 | 2226 | dev_info(&card->gdev->dev, "Device is a%s " |
4a71df50 FB |
2227 | "card%s%s%s\nwith link type %s " |
2228 | "(no portname needed by interface).\n", | |
4a71df50 FB |
2229 | qeth_get_cardname(card), |
2230 | (card->info.mcl_level[0]) ? " (level: " : "", | |
2231 | (card->info.mcl_level[0]) ? card->info.mcl_level : "", | |
2232 | (card->info.mcl_level[0]) ? ")" : "", | |
2233 | qeth_get_cardname_short(card)); | |
2234 | else | |
74eacdb9 | 2235 | dev_info(&card->gdev->dev, "Device is a%s " |
4a71df50 | 2236 | "card%s%s%s\nwith link type %s.\n", |
4a71df50 FB |
2237 | qeth_get_cardname(card), |
2238 | (card->info.mcl_level[0]) ? " (level: " : "", | |
2239 | (card->info.mcl_level[0]) ? card->info.mcl_level : "", | |
2240 | (card->info.mcl_level[0]) ? ")" : "", | |
2241 | qeth_get_cardname_short(card)); | |
2242 | } | |
2243 | ||
2244 | void qeth_print_status_message(struct qeth_card *card) | |
2245 | { | |
2246 | switch (card->info.type) { | |
5113fec0 UB |
2247 | case QETH_CARD_TYPE_OSD: |
2248 | case QETH_CARD_TYPE_OSM: | |
2249 | case QETH_CARD_TYPE_OSX: | |
4a71df50 FB |
2250 | /* VM will use a non-zero first character |
2251 | * to indicate a HiperSockets like reporting | |
2252 | * of the level OSA sets the first character to zero | |
2253 | * */ | |
2254 | if (!card->info.mcl_level[0]) { | |
2255 | sprintf(card->info.mcl_level, "%02x%02x", | |
2256 | card->info.mcl_level[2], | |
2257 | card->info.mcl_level[3]); | |
2258 | ||
2259 | card->info.mcl_level[QETH_MCL_LENGTH] = 0; | |
2260 | break; | |
2261 | } | |
2262 | /* fallthrough */ | |
2263 | case QETH_CARD_TYPE_IQD: | |
906f1f07 KDW |
2264 | if ((card->info.guestlan) || |
2265 | (card->info.mcl_level[0] & 0x80)) { | |
4a71df50 FB |
2266 | card->info.mcl_level[0] = (char) _ebcasc[(__u8) |
2267 | card->info.mcl_level[0]]; | |
2268 | card->info.mcl_level[1] = (char) _ebcasc[(__u8) | |
2269 | card->info.mcl_level[1]]; | |
2270 | card->info.mcl_level[2] = (char) _ebcasc[(__u8) | |
2271 | card->info.mcl_level[2]]; | |
2272 | card->info.mcl_level[3] = (char) _ebcasc[(__u8) | |
2273 | card->info.mcl_level[3]]; | |
2274 | card->info.mcl_level[QETH_MCL_LENGTH] = 0; | |
2275 | } | |
2276 | break; | |
2277 | default: | |
2278 | memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1); | |
2279 | } | |
2280 | if (card->info.portname_required) | |
2281 | qeth_print_status_with_portname(card); | |
2282 | else | |
2283 | qeth_print_status_no_portname(card); | |
2284 | } | |
2285 | EXPORT_SYMBOL_GPL(qeth_print_status_message); | |
2286 | ||
4a71df50 FB |
2287 | static void qeth_initialize_working_pool_list(struct qeth_card *card) |
2288 | { | |
2289 | struct qeth_buffer_pool_entry *entry; | |
2290 | ||
847a50fd | 2291 | QETH_CARD_TEXT(card, 5, "inwrklst"); |
4a71df50 FB |
2292 | |
2293 | list_for_each_entry(entry, | |
2294 | &card->qdio.init_pool.entry_list, init_list) { | |
2295 | qeth_put_buffer_pool_entry(card, entry); | |
2296 | } | |
2297 | } | |
2298 | ||
2299 | static inline struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry( | |
2300 | struct qeth_card *card) | |
2301 | { | |
2302 | struct list_head *plh; | |
2303 | struct qeth_buffer_pool_entry *entry; | |
2304 | int i, free; | |
2305 | struct page *page; | |
2306 | ||
2307 | if (list_empty(&card->qdio.in_buf_pool.entry_list)) | |
2308 | return NULL; | |
2309 | ||
2310 | list_for_each(plh, &card->qdio.in_buf_pool.entry_list) { | |
2311 | entry = list_entry(plh, struct qeth_buffer_pool_entry, list); | |
2312 | free = 1; | |
2313 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { | |
2314 | if (page_count(virt_to_page(entry->elements[i])) > 1) { | |
2315 | free = 0; | |
2316 | break; | |
2317 | } | |
2318 | } | |
2319 | if (free) { | |
2320 | list_del_init(&entry->list); | |
2321 | return entry; | |
2322 | } | |
2323 | } | |
2324 | ||
2325 | /* no free buffer in pool so take first one and swap pages */ | |
2326 | entry = list_entry(card->qdio.in_buf_pool.entry_list.next, | |
2327 | struct qeth_buffer_pool_entry, list); | |
2328 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { | |
2329 | if (page_count(virt_to_page(entry->elements[i])) > 1) { | |
508b3c4f | 2330 | page = alloc_page(GFP_ATOMIC); |
4a71df50 FB |
2331 | if (!page) { |
2332 | return NULL; | |
2333 | } else { | |
2334 | free_page((unsigned long)entry->elements[i]); | |
2335 | entry->elements[i] = page_address(page); | |
2336 | if (card->options.performance_stats) | |
2337 | card->perf_stats.sg_alloc_page_rx++; | |
2338 | } | |
2339 | } | |
2340 | } | |
2341 | list_del_init(&entry->list); | |
2342 | return entry; | |
2343 | } | |
2344 | ||
2345 | static int qeth_init_input_buffer(struct qeth_card *card, | |
2346 | struct qeth_qdio_buffer *buf) | |
2347 | { | |
2348 | struct qeth_buffer_pool_entry *pool_entry; | |
2349 | int i; | |
2350 | ||
2351 | pool_entry = qeth_find_free_buffer_pool_entry(card); | |
2352 | if (!pool_entry) | |
2353 | return 1; | |
2354 | ||
2355 | /* | |
2356 | * since the buffer is accessed only from the input_tasklet | |
2357 | * there shouldn't be a need to synchronize; also, since we use | |
2358 | * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off | |
2359 | * buffers | |
2360 | */ | |
4a71df50 FB |
2361 | |
2362 | buf->pool_entry = pool_entry; | |
2363 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { | |
2364 | buf->buffer->element[i].length = PAGE_SIZE; | |
2365 | buf->buffer->element[i].addr = pool_entry->elements[i]; | |
2366 | if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1) | |
2367 | buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY; | |
2368 | else | |
2369 | buf->buffer->element[i].flags = 0; | |
2370 | } | |
2371 | return 0; | |
2372 | } | |
2373 | ||
2374 | int qeth_init_qdio_queues(struct qeth_card *card) | |
2375 | { | |
2376 | int i, j; | |
2377 | int rc; | |
2378 | ||
d11ba0c4 | 2379 | QETH_DBF_TEXT(SETUP, 2, "initqdqs"); |
4a71df50 FB |
2380 | |
2381 | /* inbound queue */ | |
2382 | memset(card->qdio.in_q->qdio_bufs, 0, | |
2383 | QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer)); | |
2384 | qeth_initialize_working_pool_list(card); | |
2385 | /*give only as many buffers to hardware as we have buffer pool entries*/ | |
2386 | for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i) | |
2387 | qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]); | |
2388 | card->qdio.in_q->next_buf_to_init = | |
2389 | card->qdio.in_buf_pool.buf_count - 1; | |
2390 | rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0, | |
779e6e1c | 2391 | card->qdio.in_buf_pool.buf_count - 1); |
4a71df50 | 2392 | if (rc) { |
d11ba0c4 | 2393 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
2394 | return rc; |
2395 | } | |
4a71df50 FB |
2396 | /* outbound queue */ |
2397 | for (i = 0; i < card->qdio.no_out_queues; ++i) { | |
2398 | memset(card->qdio.out_qs[i]->qdio_bufs, 0, | |
2399 | QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer)); | |
2400 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { | |
2401 | qeth_clear_output_buffer(card->qdio.out_qs[i], | |
2402 | &card->qdio.out_qs[i]->bufs[j]); | |
2403 | } | |
2404 | card->qdio.out_qs[i]->card = card; | |
2405 | card->qdio.out_qs[i]->next_buf_to_fill = 0; | |
2406 | card->qdio.out_qs[i]->do_pack = 0; | |
2407 | atomic_set(&card->qdio.out_qs[i]->used_buffers, 0); | |
2408 | atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0); | |
2409 | atomic_set(&card->qdio.out_qs[i]->state, | |
2410 | QETH_OUT_Q_UNLOCKED); | |
2411 | } | |
2412 | return 0; | |
2413 | } | |
2414 | EXPORT_SYMBOL_GPL(qeth_init_qdio_queues); | |
2415 | ||
2416 | static inline __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type) | |
2417 | { | |
2418 | switch (link_type) { | |
2419 | case QETH_LINK_TYPE_HSTR: | |
2420 | return 2; | |
2421 | default: | |
2422 | return 1; | |
2423 | } | |
2424 | } | |
2425 | ||
2426 | static void qeth_fill_ipacmd_header(struct qeth_card *card, | |
2427 | struct qeth_ipa_cmd *cmd, __u8 command, | |
2428 | enum qeth_prot_versions prot) | |
2429 | { | |
2430 | memset(cmd, 0, sizeof(struct qeth_ipa_cmd)); | |
2431 | cmd->hdr.command = command; | |
2432 | cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST; | |
2433 | cmd->hdr.seqno = card->seqno.ipa; | |
2434 | cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type); | |
2435 | cmd->hdr.rel_adapter_no = (__u8) card->info.portno; | |
2436 | if (card->options.layer2) | |
2437 | cmd->hdr.prim_version_no = 2; | |
2438 | else | |
2439 | cmd->hdr.prim_version_no = 1; | |
2440 | cmd->hdr.param_count = 1; | |
2441 | cmd->hdr.prot_version = prot; | |
2442 | cmd->hdr.ipa_supported = 0; | |
2443 | cmd->hdr.ipa_enabled = 0; | |
2444 | } | |
2445 | ||
2446 | struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card, | |
2447 | enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot) | |
2448 | { | |
2449 | struct qeth_cmd_buffer *iob; | |
2450 | struct qeth_ipa_cmd *cmd; | |
2451 | ||
2452 | iob = qeth_wait_for_buffer(&card->write); | |
2453 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
2454 | qeth_fill_ipacmd_header(card, cmd, ipacmd, prot); | |
2455 | ||
2456 | return iob; | |
2457 | } | |
2458 | EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer); | |
2459 | ||
2460 | void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, | |
2461 | char prot_type) | |
2462 | { | |
2463 | memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); | |
2464 | memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1); | |
2465 | memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), | |
2466 | &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); | |
2467 | } | |
2468 | EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd); | |
2469 | ||
2470 | int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, | |
2471 | int (*reply_cb)(struct qeth_card *, struct qeth_reply*, | |
2472 | unsigned long), | |
2473 | void *reply_param) | |
2474 | { | |
2475 | int rc; | |
2476 | char prot_type; | |
4a71df50 | 2477 | |
847a50fd | 2478 | QETH_CARD_TEXT(card, 4, "sendipa"); |
4a71df50 FB |
2479 | |
2480 | if (card->options.layer2) | |
2481 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
2482 | prot_type = QETH_PROT_OSN2; | |
2483 | else | |
2484 | prot_type = QETH_PROT_LAYER2; | |
2485 | else | |
2486 | prot_type = QETH_PROT_TCPIP; | |
2487 | qeth_prepare_ipa_cmd(card, iob, prot_type); | |
d11ba0c4 PT |
2488 | rc = qeth_send_control_data(card, IPA_CMD_LENGTH, |
2489 | iob, reply_cb, reply_param); | |
908abbb5 UB |
2490 | if (rc == -ETIME) { |
2491 | qeth_clear_ipacmd_list(card); | |
2492 | qeth_schedule_recovery(card); | |
2493 | } | |
4a71df50 FB |
2494 | return rc; |
2495 | } | |
2496 | EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd); | |
2497 | ||
2498 | static int qeth_send_startstoplan(struct qeth_card *card, | |
2499 | enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot) | |
2500 | { | |
2501 | int rc; | |
2502 | struct qeth_cmd_buffer *iob; | |
2503 | ||
2504 | iob = qeth_get_ipacmd_buffer(card, ipacmd, prot); | |
2505 | rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); | |
2506 | ||
2507 | return rc; | |
2508 | } | |
2509 | ||
2510 | int qeth_send_startlan(struct qeth_card *card) | |
2511 | { | |
2512 | int rc; | |
2513 | ||
d11ba0c4 | 2514 | QETH_DBF_TEXT(SETUP, 2, "strtlan"); |
4a71df50 FB |
2515 | |
2516 | rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, 0); | |
2517 | return rc; | |
2518 | } | |
2519 | EXPORT_SYMBOL_GPL(qeth_send_startlan); | |
2520 | ||
2521 | int qeth_send_stoplan(struct qeth_card *card) | |
2522 | { | |
2523 | int rc = 0; | |
2524 | ||
2525 | /* | |
2526 | * TODO: according to the IPA format document page 14, | |
2527 | * TCP/IP (we!) never issue a STOPLAN | |
2528 | * is this right ?!? | |
2529 | */ | |
d11ba0c4 | 2530 | QETH_DBF_TEXT(SETUP, 2, "stoplan"); |
4a71df50 FB |
2531 | |
2532 | rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, 0); | |
2533 | return rc; | |
2534 | } | |
2535 | EXPORT_SYMBOL_GPL(qeth_send_stoplan); | |
2536 | ||
2537 | int qeth_default_setadapterparms_cb(struct qeth_card *card, | |
2538 | struct qeth_reply *reply, unsigned long data) | |
2539 | { | |
2540 | struct qeth_ipa_cmd *cmd; | |
2541 | ||
847a50fd | 2542 | QETH_CARD_TEXT(card, 4, "defadpcb"); |
4a71df50 FB |
2543 | |
2544 | cmd = (struct qeth_ipa_cmd *) data; | |
2545 | if (cmd->hdr.return_code == 0) | |
2546 | cmd->hdr.return_code = | |
2547 | cmd->data.setadapterparms.hdr.return_code; | |
2548 | return 0; | |
2549 | } | |
2550 | EXPORT_SYMBOL_GPL(qeth_default_setadapterparms_cb); | |
2551 | ||
2552 | static int qeth_query_setadapterparms_cb(struct qeth_card *card, | |
2553 | struct qeth_reply *reply, unsigned long data) | |
2554 | { | |
2555 | struct qeth_ipa_cmd *cmd; | |
2556 | ||
847a50fd | 2557 | QETH_CARD_TEXT(card, 3, "quyadpcb"); |
4a71df50 FB |
2558 | |
2559 | cmd = (struct qeth_ipa_cmd *) data; | |
5113fec0 | 2560 | if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) { |
4a71df50 FB |
2561 | card->info.link_type = |
2562 | cmd->data.setadapterparms.data.query_cmds_supp.lan_type; | |
5113fec0 UB |
2563 | QETH_DBF_TEXT_(SETUP, 2, "lnk %d", card->info.link_type); |
2564 | } | |
4a71df50 FB |
2565 | card->options.adp.supported_funcs = |
2566 | cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds; | |
2567 | return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd); | |
2568 | } | |
2569 | ||
2570 | struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card, | |
2571 | __u32 command, __u32 cmdlen) | |
2572 | { | |
2573 | struct qeth_cmd_buffer *iob; | |
2574 | struct qeth_ipa_cmd *cmd; | |
2575 | ||
2576 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS, | |
2577 | QETH_PROT_IPV4); | |
2578 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
2579 | cmd->data.setadapterparms.hdr.cmdlength = cmdlen; | |
2580 | cmd->data.setadapterparms.hdr.command_code = command; | |
2581 | cmd->data.setadapterparms.hdr.used_total = 1; | |
2582 | cmd->data.setadapterparms.hdr.seq_no = 1; | |
2583 | ||
2584 | return iob; | |
2585 | } | |
2586 | EXPORT_SYMBOL_GPL(qeth_get_adapter_cmd); | |
2587 | ||
2588 | int qeth_query_setadapterparms(struct qeth_card *card) | |
2589 | { | |
2590 | int rc; | |
2591 | struct qeth_cmd_buffer *iob; | |
2592 | ||
847a50fd | 2593 | QETH_CARD_TEXT(card, 3, "queryadp"); |
4a71df50 FB |
2594 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED, |
2595 | sizeof(struct qeth_ipacmd_setadpparms)); | |
2596 | rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL); | |
2597 | return rc; | |
2598 | } | |
2599 | EXPORT_SYMBOL_GPL(qeth_query_setadapterparms); | |
2600 | ||
76b11f8e UB |
2601 | int qeth_check_qdio_errors(struct qeth_card *card, struct qdio_buffer *buf, |
2602 | unsigned int qdio_error, const char *dbftext) | |
4a71df50 | 2603 | { |
779e6e1c | 2604 | if (qdio_error) { |
847a50fd | 2605 | QETH_CARD_TEXT(card, 2, dbftext); |
38593d01 | 2606 | QETH_CARD_TEXT_(card, 2, " F15=%02X", |
4a71df50 | 2607 | buf->element[15].flags & 0xff); |
38593d01 | 2608 | QETH_CARD_TEXT_(card, 2, " F14=%02X", |
4a71df50 | 2609 | buf->element[14].flags & 0xff); |
38593d01 | 2610 | QETH_CARD_TEXT_(card, 2, " qerr=%X", qdio_error); |
76b11f8e UB |
2611 | if ((buf->element[15].flags & 0xff) == 0x12) { |
2612 | card->stats.rx_dropped++; | |
2613 | return 0; | |
2614 | } else | |
2615 | return 1; | |
4a71df50 FB |
2616 | } |
2617 | return 0; | |
2618 | } | |
2619 | EXPORT_SYMBOL_GPL(qeth_check_qdio_errors); | |
2620 | ||
2621 | void qeth_queue_input_buffer(struct qeth_card *card, int index) | |
2622 | { | |
2623 | struct qeth_qdio_q *queue = card->qdio.in_q; | |
2624 | int count; | |
2625 | int i; | |
2626 | int rc; | |
2627 | int newcount = 0; | |
2628 | ||
4a71df50 FB |
2629 | count = (index < queue->next_buf_to_init)? |
2630 | card->qdio.in_buf_pool.buf_count - | |
2631 | (queue->next_buf_to_init - index) : | |
2632 | card->qdio.in_buf_pool.buf_count - | |
2633 | (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index); | |
2634 | /* only requeue at a certain threshold to avoid SIGAs */ | |
2635 | if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) { | |
2636 | for (i = queue->next_buf_to_init; | |
2637 | i < queue->next_buf_to_init + count; ++i) { | |
2638 | if (qeth_init_input_buffer(card, | |
2639 | &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) { | |
2640 | break; | |
2641 | } else { | |
2642 | newcount++; | |
2643 | } | |
2644 | } | |
2645 | ||
2646 | if (newcount < count) { | |
2647 | /* we are in memory shortage so we switch back to | |
2648 | traditional skb allocation and drop packages */ | |
4a71df50 FB |
2649 | atomic_set(&card->force_alloc_skb, 3); |
2650 | count = newcount; | |
2651 | } else { | |
4a71df50 FB |
2652 | atomic_add_unless(&card->force_alloc_skb, -1, 0); |
2653 | } | |
2654 | ||
2655 | /* | |
2656 | * according to old code it should be avoided to requeue all | |
2657 | * 128 buffers in order to benefit from PCI avoidance. | |
2658 | * this function keeps at least one buffer (the buffer at | |
2659 | * 'index') un-requeued -> this buffer is the first buffer that | |
2660 | * will be requeued the next time | |
2661 | */ | |
2662 | if (card->options.performance_stats) { | |
2663 | card->perf_stats.inbound_do_qdio_cnt++; | |
2664 | card->perf_stats.inbound_do_qdio_start_time = | |
2665 | qeth_get_micros(); | |
2666 | } | |
779e6e1c JG |
2667 | rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, |
2668 | queue->next_buf_to_init, count); | |
4a71df50 FB |
2669 | if (card->options.performance_stats) |
2670 | card->perf_stats.inbound_do_qdio_time += | |
2671 | qeth_get_micros() - | |
2672 | card->perf_stats.inbound_do_qdio_start_time; | |
2673 | if (rc) { | |
74eacdb9 FB |
2674 | dev_warn(&card->gdev->dev, |
2675 | "QDIO reported an error, rc=%i\n", rc); | |
847a50fd | 2676 | QETH_CARD_TEXT(card, 2, "qinberr"); |
4a71df50 FB |
2677 | } |
2678 | queue->next_buf_to_init = (queue->next_buf_to_init + count) % | |
2679 | QDIO_MAX_BUFFERS_PER_Q; | |
2680 | } | |
2681 | } | |
2682 | EXPORT_SYMBOL_GPL(qeth_queue_input_buffer); | |
2683 | ||
2684 | static int qeth_handle_send_error(struct qeth_card *card, | |
779e6e1c | 2685 | struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err) |
4a71df50 FB |
2686 | { |
2687 | int sbalf15 = buffer->buffer->element[15].flags & 0xff; | |
4a71df50 | 2688 | |
847a50fd | 2689 | QETH_CARD_TEXT(card, 6, "hdsnderr"); |
58490f18 KDW |
2690 | if (card->info.type == QETH_CARD_TYPE_IQD) { |
2691 | if (sbalf15 == 0) { | |
2692 | qdio_err = 0; | |
2693 | } else { | |
2694 | qdio_err = 1; | |
2695 | } | |
2696 | } | |
76b11f8e | 2697 | qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr"); |
d303b6fd JG |
2698 | |
2699 | if (!qdio_err) | |
4a71df50 | 2700 | return QETH_SEND_ERROR_NONE; |
d303b6fd JG |
2701 | |
2702 | if ((sbalf15 >= 15) && (sbalf15 <= 31)) | |
2703 | return QETH_SEND_ERROR_RETRY; | |
2704 | ||
847a50fd CO |
2705 | QETH_CARD_TEXT(card, 1, "lnkfail"); |
2706 | QETH_CARD_TEXT_(card, 1, "%04x %02x", | |
d303b6fd JG |
2707 | (u16)qdio_err, (u8)sbalf15); |
2708 | return QETH_SEND_ERROR_LINK_FAILURE; | |
4a71df50 FB |
2709 | } |
2710 | ||
2711 | /* | |
2712 | * Switched to packing state if the number of used buffers on a queue | |
2713 | * reaches a certain limit. | |
2714 | */ | |
2715 | static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue) | |
2716 | { | |
2717 | if (!queue->do_pack) { | |
2718 | if (atomic_read(&queue->used_buffers) | |
2719 | >= QETH_HIGH_WATERMARK_PACK){ | |
2720 | /* switch non-PACKING -> PACKING */ | |
847a50fd | 2721 | QETH_CARD_TEXT(queue->card, 6, "np->pack"); |
4a71df50 FB |
2722 | if (queue->card->options.performance_stats) |
2723 | queue->card->perf_stats.sc_dp_p++; | |
2724 | queue->do_pack = 1; | |
2725 | } | |
2726 | } | |
2727 | } | |
2728 | ||
2729 | /* | |
2730 | * Switches from packing to non-packing mode. If there is a packing | |
2731 | * buffer on the queue this buffer will be prepared to be flushed. | |
2732 | * In that case 1 is returned to inform the caller. If no buffer | |
2733 | * has to be flushed, zero is returned. | |
2734 | */ | |
2735 | static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue) | |
2736 | { | |
2737 | struct qeth_qdio_out_buffer *buffer; | |
2738 | int flush_count = 0; | |
2739 | ||
2740 | if (queue->do_pack) { | |
2741 | if (atomic_read(&queue->used_buffers) | |
2742 | <= QETH_LOW_WATERMARK_PACK) { | |
2743 | /* switch PACKING -> non-PACKING */ | |
847a50fd | 2744 | QETH_CARD_TEXT(queue->card, 6, "pack->np"); |
4a71df50 FB |
2745 | if (queue->card->options.performance_stats) |
2746 | queue->card->perf_stats.sc_p_dp++; | |
2747 | queue->do_pack = 0; | |
2748 | /* flush packing buffers */ | |
2749 | buffer = &queue->bufs[queue->next_buf_to_fill]; | |
2750 | if ((atomic_read(&buffer->state) == | |
2751 | QETH_QDIO_BUF_EMPTY) && | |
2752 | (buffer->next_element_to_fill > 0)) { | |
2753 | atomic_set(&buffer->state, | |
2754 | QETH_QDIO_BUF_PRIMED); | |
2755 | flush_count++; | |
2756 | queue->next_buf_to_fill = | |
2757 | (queue->next_buf_to_fill + 1) % | |
2758 | QDIO_MAX_BUFFERS_PER_Q; | |
2759 | } | |
2760 | } | |
2761 | } | |
2762 | return flush_count; | |
2763 | } | |
2764 | ||
2765 | /* | |
2766 | * Called to flush a packing buffer if no more pci flags are on the queue. | |
2767 | * Checks if there is a packing buffer and prepares it to be flushed. | |
2768 | * In that case returns 1, otherwise zero. | |
2769 | */ | |
2770 | static int qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue) | |
2771 | { | |
2772 | struct qeth_qdio_out_buffer *buffer; | |
2773 | ||
2774 | buffer = &queue->bufs[queue->next_buf_to_fill]; | |
2775 | if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) && | |
2776 | (buffer->next_element_to_fill > 0)) { | |
2777 | /* it's a packing buffer */ | |
2778 | atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); | |
2779 | queue->next_buf_to_fill = | |
2780 | (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q; | |
2781 | return 1; | |
2782 | } | |
2783 | return 0; | |
2784 | } | |
2785 | ||
779e6e1c JG |
2786 | static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index, |
2787 | int count) | |
4a71df50 FB |
2788 | { |
2789 | struct qeth_qdio_out_buffer *buf; | |
2790 | int rc; | |
2791 | int i; | |
2792 | unsigned int qdio_flags; | |
2793 | ||
4a71df50 FB |
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; | |
4a71df50 FB |
2835 | if (atomic_read(&queue->set_pci_flags_count)) |
2836 | qdio_flags |= QDIO_FLAG_PCI_OUT; | |
2837 | rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags, | |
779e6e1c | 2838 | queue->queue_no, index, count); |
4a71df50 FB |
2839 | if (queue->card->options.performance_stats) |
2840 | queue->card->perf_stats.outbound_do_qdio_time += | |
2841 | qeth_get_micros() - | |
2842 | queue->card->perf_stats.outbound_do_qdio_start_time; | |
aa3a41d0 | 2843 | atomic_add(count, &queue->used_buffers); |
4a71df50 | 2844 | if (rc) { |
d303b6fd JG |
2845 | queue->card->stats.tx_errors += count; |
2846 | /* ignore temporary SIGA errors without busy condition */ | |
2847 | if (rc == QDIO_ERROR_SIGA_TARGET) | |
2848 | return; | |
847a50fd CO |
2849 | QETH_CARD_TEXT(queue->card, 2, "flushbuf"); |
2850 | QETH_CARD_TEXT_(queue->card, 2, " err%d", rc); | |
d303b6fd | 2851 | |
4a71df50 FB |
2852 | /* this must not happen under normal circumstances. if it |
2853 | * happens something is really wrong -> recover */ | |
2854 | qeth_schedule_recovery(queue->card); | |
2855 | return; | |
2856 | } | |
4a71df50 FB |
2857 | if (queue->card->options.performance_stats) |
2858 | queue->card->perf_stats.bufs_sent += count; | |
2859 | } | |
2860 | ||
2861 | static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue) | |
2862 | { | |
2863 | int index; | |
2864 | int flush_cnt = 0; | |
2865 | int q_was_packing = 0; | |
2866 | ||
2867 | /* | |
2868 | * check if weed have to switch to non-packing mode or if | |
2869 | * we have to get a pci flag out on the queue | |
2870 | */ | |
2871 | if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) || | |
2872 | !atomic_read(&queue->set_pci_flags_count)) { | |
2873 | if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) == | |
2874 | QETH_OUT_Q_UNLOCKED) { | |
2875 | /* | |
2876 | * If we get in here, there was no action in | |
2877 | * do_send_packet. So, we check if there is a | |
2878 | * packing buffer to be flushed here. | |
2879 | */ | |
2880 | netif_stop_queue(queue->card->dev); | |
2881 | index = queue->next_buf_to_fill; | |
2882 | q_was_packing = queue->do_pack; | |
2883 | /* queue->do_pack may change */ | |
2884 | barrier(); | |
2885 | flush_cnt += qeth_switch_to_nonpacking_if_needed(queue); | |
2886 | if (!flush_cnt && | |
2887 | !atomic_read(&queue->set_pci_flags_count)) | |
2888 | flush_cnt += | |
2889 | qeth_flush_buffers_on_no_pci(queue); | |
2890 | if (queue->card->options.performance_stats && | |
2891 | q_was_packing) | |
2892 | queue->card->perf_stats.bufs_sent_pack += | |
2893 | flush_cnt; | |
2894 | if (flush_cnt) | |
779e6e1c | 2895 | qeth_flush_buffers(queue, index, flush_cnt); |
4a71df50 FB |
2896 | atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); |
2897 | } | |
2898 | } | |
2899 | } | |
2900 | ||
a1c3ed4c FB |
2901 | void qeth_qdio_start_poll(struct ccw_device *ccwdev, int queue, |
2902 | unsigned long card_ptr) | |
2903 | { | |
2904 | struct qeth_card *card = (struct qeth_card *)card_ptr; | |
2905 | ||
0cffef48 | 2906 | if (card->dev && (card->dev->flags & IFF_UP)) |
a1c3ed4c FB |
2907 | napi_schedule(&card->napi); |
2908 | } | |
2909 | EXPORT_SYMBOL_GPL(qeth_qdio_start_poll); | |
2910 | ||
2911 | void qeth_qdio_input_handler(struct ccw_device *ccwdev, unsigned int qdio_err, | |
2912 | unsigned int queue, int first_element, int count, | |
2913 | unsigned long card_ptr) | |
2914 | { | |
2915 | struct qeth_card *card = (struct qeth_card *)card_ptr; | |
2916 | ||
2917 | if (qdio_err) | |
2918 | qeth_schedule_recovery(card); | |
2919 | } | |
2920 | EXPORT_SYMBOL_GPL(qeth_qdio_input_handler); | |
2921 | ||
779e6e1c JG |
2922 | void qeth_qdio_output_handler(struct ccw_device *ccwdev, |
2923 | unsigned int qdio_error, int __queue, int first_element, | |
2924 | int count, unsigned long card_ptr) | |
4a71df50 FB |
2925 | { |
2926 | struct qeth_card *card = (struct qeth_card *) card_ptr; | |
2927 | struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue]; | |
2928 | struct qeth_qdio_out_buffer *buffer; | |
2929 | int i; | |
2930 | ||
847a50fd | 2931 | QETH_CARD_TEXT(card, 6, "qdouhdl"); |
779e6e1c | 2932 | if (qdio_error & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) { |
847a50fd | 2933 | QETH_CARD_TEXT(card, 2, "achkcond"); |
779e6e1c JG |
2934 | netif_stop_queue(card->dev); |
2935 | qeth_schedule_recovery(card); | |
2936 | return; | |
4a71df50 FB |
2937 | } |
2938 | if (card->options.performance_stats) { | |
2939 | card->perf_stats.outbound_handler_cnt++; | |
2940 | card->perf_stats.outbound_handler_start_time = | |
2941 | qeth_get_micros(); | |
2942 | } | |
2943 | for (i = first_element; i < (first_element + count); ++i) { | |
2944 | buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]; | |
b67d801f UB |
2945 | qeth_handle_send_error(card, buffer, qdio_error); |
2946 | qeth_clear_output_buffer(queue, buffer); | |
4a71df50 FB |
2947 | } |
2948 | atomic_sub(count, &queue->used_buffers); | |
2949 | /* check if we need to do something on this outbound queue */ | |
2950 | if (card->info.type != QETH_CARD_TYPE_IQD) | |
2951 | qeth_check_outbound_queue(queue); | |
2952 | ||
2953 | netif_wake_queue(queue->card->dev); | |
2954 | if (card->options.performance_stats) | |
2955 | card->perf_stats.outbound_handler_time += qeth_get_micros() - | |
2956 | card->perf_stats.outbound_handler_start_time; | |
2957 | } | |
2958 | EXPORT_SYMBOL_GPL(qeth_qdio_output_handler); | |
2959 | ||
4a71df50 FB |
2960 | int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb, |
2961 | int ipv, int cast_type) | |
2962 | { | |
5113fec0 UB |
2963 | if (!ipv && (card->info.type == QETH_CARD_TYPE_OSD || |
2964 | card->info.type == QETH_CARD_TYPE_OSX)) | |
4a71df50 FB |
2965 | return card->qdio.default_out_queue; |
2966 | switch (card->qdio.no_out_queues) { | |
2967 | case 4: | |
2968 | if (cast_type && card->info.is_multicast_different) | |
2969 | return card->info.is_multicast_different & | |
2970 | (card->qdio.no_out_queues - 1); | |
2971 | if (card->qdio.do_prio_queueing && (ipv == 4)) { | |
2972 | const u8 tos = ip_hdr(skb)->tos; | |
2973 | ||
2974 | if (card->qdio.do_prio_queueing == | |
2975 | QETH_PRIO_Q_ING_TOS) { | |
2976 | if (tos & IP_TOS_NOTIMPORTANT) | |
2977 | return 3; | |
2978 | if (tos & IP_TOS_HIGHRELIABILITY) | |
2979 | return 2; | |
2980 | if (tos & IP_TOS_HIGHTHROUGHPUT) | |
2981 | return 1; | |
2982 | if (tos & IP_TOS_LOWDELAY) | |
2983 | return 0; | |
2984 | } | |
2985 | if (card->qdio.do_prio_queueing == | |
2986 | QETH_PRIO_Q_ING_PREC) | |
2987 | return 3 - (tos >> 6); | |
2988 | } else if (card->qdio.do_prio_queueing && (ipv == 6)) { | |
2989 | /* TODO: IPv6!!! */ | |
2990 | } | |
2991 | return card->qdio.default_out_queue; | |
2992 | case 1: /* fallthrough for single-out-queue 1920-device */ | |
2993 | default: | |
2994 | return card->qdio.default_out_queue; | |
2995 | } | |
2996 | } | |
2997 | EXPORT_SYMBOL_GPL(qeth_get_priority_queue); | |
2998 | ||
4a71df50 FB |
2999 | int qeth_get_elements_no(struct qeth_card *card, void *hdr, |
3000 | struct sk_buff *skb, int elems) | |
3001 | { | |
51aa165c FB |
3002 | int dlen = skb->len - skb->data_len; |
3003 | int elements_needed = PFN_UP((unsigned long)skb->data + dlen - 1) - | |
3004 | PFN_DOWN((unsigned long)skb->data); | |
4a71df50 | 3005 | |
51aa165c | 3006 | elements_needed += skb_shinfo(skb)->nr_frags; |
4a71df50 | 3007 | if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)) { |
14cc21b6 | 3008 | QETH_DBF_MESSAGE(2, "Invalid size of IP packet " |
4a71df50 FB |
3009 | "(Number=%d / Length=%d). Discarded.\n", |
3010 | (elements_needed+elems), skb->len); | |
3011 | return 0; | |
3012 | } | |
3013 | return elements_needed; | |
3014 | } | |
3015 | EXPORT_SYMBOL_GPL(qeth_get_elements_no); | |
3016 | ||
51aa165c FB |
3017 | int qeth_hdr_chk_and_bounce(struct sk_buff *skb, int len) |
3018 | { | |
3019 | int hroom, inpage, rest; | |
3020 | ||
3021 | if (((unsigned long)skb->data & PAGE_MASK) != | |
3022 | (((unsigned long)skb->data + len - 1) & PAGE_MASK)) { | |
3023 | hroom = skb_headroom(skb); | |
3024 | inpage = PAGE_SIZE - ((unsigned long) skb->data % PAGE_SIZE); | |
3025 | rest = len - inpage; | |
3026 | if (rest > hroom) | |
3027 | return 1; | |
3028 | memmove(skb->data - rest, skb->data, skb->len - skb->data_len); | |
3029 | skb->data -= rest; | |
3030 | QETH_DBF_MESSAGE(2, "skb bounce len: %d rest: %d\n", len, rest); | |
3031 | } | |
3032 | return 0; | |
3033 | } | |
3034 | EXPORT_SYMBOL_GPL(qeth_hdr_chk_and_bounce); | |
3035 | ||
f90b744e | 3036 | static inline void __qeth_fill_buffer(struct sk_buff *skb, |
683d718a FB |
3037 | struct qdio_buffer *buffer, int is_tso, int *next_element_to_fill, |
3038 | int offset) | |
4a71df50 | 3039 | { |
51aa165c | 3040 | int length = skb->len - skb->data_len; |
4a71df50 FB |
3041 | int length_here; |
3042 | int element; | |
3043 | char *data; | |
51aa165c FB |
3044 | int first_lap, cnt; |
3045 | struct skb_frag_struct *frag; | |
4a71df50 FB |
3046 | |
3047 | element = *next_element_to_fill; | |
3048 | data = skb->data; | |
3049 | first_lap = (is_tso == 0 ? 1 : 0); | |
3050 | ||
683d718a FB |
3051 | if (offset >= 0) { |
3052 | data = skb->data + offset; | |
e1f03ae8 | 3053 | length -= offset; |
683d718a FB |
3054 | first_lap = 0; |
3055 | } | |
3056 | ||
4a71df50 FB |
3057 | while (length > 0) { |
3058 | /* length_here is the remaining amount of data in this page */ | |
3059 | length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE); | |
3060 | if (length < length_here) | |
3061 | length_here = length; | |
3062 | ||
3063 | buffer->element[element].addr = data; | |
3064 | buffer->element[element].length = length_here; | |
3065 | length -= length_here; | |
3066 | if (!length) { | |
3067 | if (first_lap) | |
51aa165c FB |
3068 | if (skb_shinfo(skb)->nr_frags) |
3069 | buffer->element[element].flags = | |
3070 | SBAL_FLAGS_FIRST_FRAG; | |
3071 | else | |
3072 | buffer->element[element].flags = 0; | |
4a71df50 FB |
3073 | else |
3074 | buffer->element[element].flags = | |
51aa165c | 3075 | SBAL_FLAGS_MIDDLE_FRAG; |
4a71df50 FB |
3076 | } else { |
3077 | if (first_lap) | |
3078 | buffer->element[element].flags = | |
3079 | SBAL_FLAGS_FIRST_FRAG; | |
3080 | else | |
3081 | buffer->element[element].flags = | |
3082 | SBAL_FLAGS_MIDDLE_FRAG; | |
3083 | } | |
3084 | data += length_here; | |
3085 | element++; | |
3086 | first_lap = 0; | |
3087 | } | |
51aa165c FB |
3088 | |
3089 | for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) { | |
3090 | frag = &skb_shinfo(skb)->frags[cnt]; | |
3091 | buffer->element[element].addr = (char *)page_to_phys(frag->page) | |
3092 | + frag->page_offset; | |
3093 | buffer->element[element].length = frag->size; | |
3094 | buffer->element[element].flags = SBAL_FLAGS_MIDDLE_FRAG; | |
3095 | element++; | |
3096 | } | |
3097 | ||
3098 | if (buffer->element[element - 1].flags) | |
3099 | buffer->element[element - 1].flags = SBAL_FLAGS_LAST_FRAG; | |
4a71df50 FB |
3100 | *next_element_to_fill = element; |
3101 | } | |
3102 | ||
f90b744e | 3103 | static inline int qeth_fill_buffer(struct qeth_qdio_out_q *queue, |
683d718a FB |
3104 | struct qeth_qdio_out_buffer *buf, struct sk_buff *skb, |
3105 | struct qeth_hdr *hdr, int offset, int hd_len) | |
4a71df50 FB |
3106 | { |
3107 | struct qdio_buffer *buffer; | |
4a71df50 FB |
3108 | int flush_cnt = 0, hdr_len, large_send = 0; |
3109 | ||
4a71df50 FB |
3110 | buffer = buf->buffer; |
3111 | atomic_inc(&skb->users); | |
3112 | skb_queue_tail(&buf->skb_list, skb); | |
3113 | ||
4a71df50 | 3114 | /*check first on TSO ....*/ |
683d718a | 3115 | if (hdr->hdr.l3.id == QETH_HEADER_TYPE_TSO) { |
4a71df50 FB |
3116 | int element = buf->next_element_to_fill; |
3117 | ||
683d718a FB |
3118 | hdr_len = sizeof(struct qeth_hdr_tso) + |
3119 | ((struct qeth_hdr_tso *)hdr)->ext.dg_hdr_len; | |
4a71df50 FB |
3120 | /*fill first buffer entry only with header information */ |
3121 | buffer->element[element].addr = skb->data; | |
3122 | buffer->element[element].length = hdr_len; | |
3123 | buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG; | |
3124 | buf->next_element_to_fill++; | |
3125 | skb->data += hdr_len; | |
3126 | skb->len -= hdr_len; | |
3127 | large_send = 1; | |
3128 | } | |
683d718a FB |
3129 | |
3130 | if (offset >= 0) { | |
3131 | int element = buf->next_element_to_fill; | |
3132 | buffer->element[element].addr = hdr; | |
3133 | buffer->element[element].length = sizeof(struct qeth_hdr) + | |
3134 | hd_len; | |
3135 | buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG; | |
3136 | buf->is_header[element] = 1; | |
3137 | buf->next_element_to_fill++; | |
3138 | } | |
3139 | ||
51aa165c FB |
3140 | __qeth_fill_buffer(skb, buffer, large_send, |
3141 | (int *)&buf->next_element_to_fill, offset); | |
4a71df50 FB |
3142 | |
3143 | if (!queue->do_pack) { | |
847a50fd | 3144 | QETH_CARD_TEXT(queue->card, 6, "fillbfnp"); |
4a71df50 FB |
3145 | /* set state to PRIMED -> will be flushed */ |
3146 | atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); | |
3147 | flush_cnt = 1; | |
3148 | } else { | |
847a50fd | 3149 | QETH_CARD_TEXT(queue->card, 6, "fillbfpa"); |
4a71df50 FB |
3150 | if (queue->card->options.performance_stats) |
3151 | queue->card->perf_stats.skbs_sent_pack++; | |
3152 | if (buf->next_element_to_fill >= | |
3153 | QETH_MAX_BUFFER_ELEMENTS(queue->card)) { | |
3154 | /* | |
3155 | * packed buffer if full -> set state PRIMED | |
3156 | * -> will be flushed | |
3157 | */ | |
3158 | atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); | |
3159 | flush_cnt = 1; | |
3160 | } | |
3161 | } | |
3162 | return flush_cnt; | |
3163 | } | |
3164 | ||
3165 | int qeth_do_send_packet_fast(struct qeth_card *card, | |
3166 | struct qeth_qdio_out_q *queue, struct sk_buff *skb, | |
3167 | struct qeth_hdr *hdr, int elements_needed, | |
64ef8957 | 3168 | int offset, int hd_len) |
4a71df50 FB |
3169 | { |
3170 | struct qeth_qdio_out_buffer *buffer; | |
4a71df50 FB |
3171 | int index; |
3172 | ||
4a71df50 FB |
3173 | /* spin until we get the queue ... */ |
3174 | while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED, | |
3175 | QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED); | |
3176 | /* ... now we've got the queue */ | |
3177 | index = queue->next_buf_to_fill; | |
3178 | buffer = &queue->bufs[queue->next_buf_to_fill]; | |
3179 | /* | |
3180 | * check if buffer is empty to make sure that we do not 'overtake' | |
3181 | * ourselves and try to fill a buffer that is already primed | |
3182 | */ | |
3183 | if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) | |
3184 | goto out; | |
64ef8957 | 3185 | queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) % |
4a71df50 | 3186 | QDIO_MAX_BUFFERS_PER_Q; |
4a71df50 | 3187 | atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); |
64ef8957 FB |
3188 | qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len); |
3189 | qeth_flush_buffers(queue, index, 1); | |
4a71df50 FB |
3190 | return 0; |
3191 | out: | |
3192 | atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); | |
3193 | return -EBUSY; | |
3194 | } | |
3195 | EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast); | |
3196 | ||
3197 | int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, | |
3198 | struct sk_buff *skb, struct qeth_hdr *hdr, | |
64ef8957 | 3199 | int elements_needed) |
4a71df50 FB |
3200 | { |
3201 | struct qeth_qdio_out_buffer *buffer; | |
3202 | int start_index; | |
3203 | int flush_count = 0; | |
3204 | int do_pack = 0; | |
3205 | int tmp; | |
3206 | int rc = 0; | |
3207 | ||
4a71df50 FB |
3208 | /* spin until we get the queue ... */ |
3209 | while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED, | |
3210 | QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED); | |
3211 | start_index = queue->next_buf_to_fill; | |
3212 | buffer = &queue->bufs[queue->next_buf_to_fill]; | |
3213 | /* | |
3214 | * check if buffer is empty to make sure that we do not 'overtake' | |
3215 | * ourselves and try to fill a buffer that is already primed | |
3216 | */ | |
3217 | if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) { | |
3218 | atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); | |
3219 | return -EBUSY; | |
3220 | } | |
3221 | /* check if we need to switch packing state of this queue */ | |
3222 | qeth_switch_to_packing_if_needed(queue); | |
3223 | if (queue->do_pack) { | |
3224 | do_pack = 1; | |
64ef8957 FB |
3225 | /* does packet fit in current buffer? */ |
3226 | if ((QETH_MAX_BUFFER_ELEMENTS(card) - | |
3227 | buffer->next_element_to_fill) < elements_needed) { | |
3228 | /* ... no -> set state PRIMED */ | |
3229 | atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); | |
3230 | flush_count++; | |
3231 | queue->next_buf_to_fill = | |
3232 | (queue->next_buf_to_fill + 1) % | |
3233 | QDIO_MAX_BUFFERS_PER_Q; | |
3234 | buffer = &queue->bufs[queue->next_buf_to_fill]; | |
3235 | /* we did a step forward, so check buffer state | |
3236 | * again */ | |
3237 | if (atomic_read(&buffer->state) != | |
3238 | QETH_QDIO_BUF_EMPTY) { | |
3239 | qeth_flush_buffers(queue, start_index, | |
779e6e1c | 3240 | flush_count); |
64ef8957 | 3241 | atomic_set(&queue->state, |
4a71df50 | 3242 | QETH_OUT_Q_UNLOCKED); |
64ef8957 | 3243 | return -EBUSY; |
4a71df50 FB |
3244 | } |
3245 | } | |
3246 | } | |
64ef8957 | 3247 | tmp = qeth_fill_buffer(queue, buffer, skb, hdr, -1, 0); |
4a71df50 FB |
3248 | queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) % |
3249 | QDIO_MAX_BUFFERS_PER_Q; | |
3250 | flush_count += tmp; | |
4a71df50 | 3251 | if (flush_count) |
779e6e1c | 3252 | qeth_flush_buffers(queue, start_index, flush_count); |
4a71df50 FB |
3253 | else if (!atomic_read(&queue->set_pci_flags_count)) |
3254 | atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH); | |
3255 | /* | |
3256 | * queue->state will go from LOCKED -> UNLOCKED or from | |
3257 | * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us | |
3258 | * (switch packing state or flush buffer to get another pci flag out). | |
3259 | * In that case we will enter this loop | |
3260 | */ | |
3261 | while (atomic_dec_return(&queue->state)) { | |
3262 | flush_count = 0; | |
3263 | start_index = queue->next_buf_to_fill; | |
3264 | /* check if we can go back to non-packing state */ | |
3265 | flush_count += qeth_switch_to_nonpacking_if_needed(queue); | |
3266 | /* | |
3267 | * check if we need to flush a packing buffer to get a pci | |
3268 | * flag out on the queue | |
3269 | */ | |
3270 | if (!flush_count && !atomic_read(&queue->set_pci_flags_count)) | |
3271 | flush_count += qeth_flush_buffers_on_no_pci(queue); | |
3272 | if (flush_count) | |
779e6e1c | 3273 | qeth_flush_buffers(queue, start_index, flush_count); |
4a71df50 FB |
3274 | } |
3275 | /* at this point the queue is UNLOCKED again */ | |
3276 | if (queue->card->options.performance_stats && do_pack) | |
3277 | queue->card->perf_stats.bufs_sent_pack += flush_count; | |
3278 | ||
3279 | return rc; | |
3280 | } | |
3281 | EXPORT_SYMBOL_GPL(qeth_do_send_packet); | |
3282 | ||
3283 | static int qeth_setadp_promisc_mode_cb(struct qeth_card *card, | |
3284 | struct qeth_reply *reply, unsigned long data) | |
3285 | { | |
3286 | struct qeth_ipa_cmd *cmd; | |
3287 | struct qeth_ipacmd_setadpparms *setparms; | |
3288 | ||
847a50fd | 3289 | QETH_CARD_TEXT(card, 4, "prmadpcb"); |
4a71df50 FB |
3290 | |
3291 | cmd = (struct qeth_ipa_cmd *) data; | |
3292 | setparms = &(cmd->data.setadapterparms); | |
3293 | ||
3294 | qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd); | |
3295 | if (cmd->hdr.return_code) { | |
847a50fd | 3296 | QETH_CARD_TEXT_(card, 4, "prmrc%2.2x", cmd->hdr.return_code); |
4a71df50 FB |
3297 | setparms->data.mode = SET_PROMISC_MODE_OFF; |
3298 | } | |
3299 | card->info.promisc_mode = setparms->data.mode; | |
3300 | return 0; | |
3301 | } | |
3302 | ||
3303 | void qeth_setadp_promisc_mode(struct qeth_card *card) | |
3304 | { | |
3305 | enum qeth_ipa_promisc_modes mode; | |
3306 | struct net_device *dev = card->dev; | |
3307 | struct qeth_cmd_buffer *iob; | |
3308 | struct qeth_ipa_cmd *cmd; | |
3309 | ||
847a50fd | 3310 | QETH_CARD_TEXT(card, 4, "setprom"); |
4a71df50 FB |
3311 | |
3312 | if (((dev->flags & IFF_PROMISC) && | |
3313 | (card->info.promisc_mode == SET_PROMISC_MODE_ON)) || | |
3314 | (!(dev->flags & IFF_PROMISC) && | |
3315 | (card->info.promisc_mode == SET_PROMISC_MODE_OFF))) | |
3316 | return; | |
3317 | mode = SET_PROMISC_MODE_OFF; | |
3318 | if (dev->flags & IFF_PROMISC) | |
3319 | mode = SET_PROMISC_MODE_ON; | |
847a50fd | 3320 | QETH_CARD_TEXT_(card, 4, "mode:%x", mode); |
4a71df50 FB |
3321 | |
3322 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE, | |
3323 | sizeof(struct qeth_ipacmd_setadpparms)); | |
3324 | cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE); | |
3325 | cmd->data.setadapterparms.data.mode = mode; | |
3326 | qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL); | |
3327 | } | |
3328 | EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode); | |
3329 | ||
3330 | int qeth_change_mtu(struct net_device *dev, int new_mtu) | |
3331 | { | |
3332 | struct qeth_card *card; | |
3333 | char dbf_text[15]; | |
3334 | ||
509e2562 | 3335 | card = dev->ml_priv; |
4a71df50 | 3336 | |
847a50fd | 3337 | QETH_CARD_TEXT(card, 4, "chgmtu"); |
4a71df50 | 3338 | sprintf(dbf_text, "%8x", new_mtu); |
847a50fd | 3339 | QETH_CARD_TEXT(card, 4, dbf_text); |
4a71df50 FB |
3340 | |
3341 | if (new_mtu < 64) | |
3342 | return -EINVAL; | |
3343 | if (new_mtu > 65535) | |
3344 | return -EINVAL; | |
3345 | if ((!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) && | |
3346 | (!qeth_mtu_is_valid(card, new_mtu))) | |
3347 | return -EINVAL; | |
3348 | dev->mtu = new_mtu; | |
3349 | return 0; | |
3350 | } | |
3351 | EXPORT_SYMBOL_GPL(qeth_change_mtu); | |
3352 | ||
3353 | struct net_device_stats *qeth_get_stats(struct net_device *dev) | |
3354 | { | |
3355 | struct qeth_card *card; | |
3356 | ||
509e2562 | 3357 | card = dev->ml_priv; |
4a71df50 | 3358 | |
847a50fd | 3359 | QETH_CARD_TEXT(card, 5, "getstat"); |
4a71df50 FB |
3360 | |
3361 | return &card->stats; | |
3362 | } | |
3363 | EXPORT_SYMBOL_GPL(qeth_get_stats); | |
3364 | ||
3365 | static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card, | |
3366 | struct qeth_reply *reply, unsigned long data) | |
3367 | { | |
3368 | struct qeth_ipa_cmd *cmd; | |
3369 | ||
847a50fd | 3370 | QETH_CARD_TEXT(card, 4, "chgmaccb"); |
4a71df50 FB |
3371 | |
3372 | cmd = (struct qeth_ipa_cmd *) data; | |
3373 | if (!card->options.layer2 || | |
3374 | !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) { | |
3375 | memcpy(card->dev->dev_addr, | |
3376 | &cmd->data.setadapterparms.data.change_addr.addr, | |
3377 | OSA_ADDR_LEN); | |
3378 | card->info.mac_bits |= QETH_LAYER2_MAC_READ; | |
3379 | } | |
3380 | qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd); | |
3381 | return 0; | |
3382 | } | |
3383 | ||
3384 | int qeth_setadpparms_change_macaddr(struct qeth_card *card) | |
3385 | { | |
3386 | int rc; | |
3387 | struct qeth_cmd_buffer *iob; | |
3388 | struct qeth_ipa_cmd *cmd; | |
3389 | ||
847a50fd | 3390 | QETH_CARD_TEXT(card, 4, "chgmac"); |
4a71df50 FB |
3391 | |
3392 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS, | |
3393 | sizeof(struct qeth_ipacmd_setadpparms)); | |
3394 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
3395 | cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC; | |
3396 | cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN; | |
3397 | memcpy(&cmd->data.setadapterparms.data.change_addr.addr, | |
3398 | card->dev->dev_addr, OSA_ADDR_LEN); | |
3399 | rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb, | |
3400 | NULL); | |
3401 | return rc; | |
3402 | } | |
3403 | EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr); | |
3404 | ||
d64ecc22 EL |
3405 | static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card, |
3406 | struct qeth_reply *reply, unsigned long data) | |
3407 | { | |
3408 | struct qeth_ipa_cmd *cmd; | |
3409 | struct qeth_set_access_ctrl *access_ctrl_req; | |
d64ecc22 | 3410 | |
847a50fd | 3411 | QETH_CARD_TEXT(card, 4, "setaccb"); |
d64ecc22 EL |
3412 | |
3413 | cmd = (struct qeth_ipa_cmd *) data; | |
3414 | access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl; | |
3415 | QETH_DBF_TEXT_(SETUP, 2, "setaccb"); | |
3416 | QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name); | |
3417 | QETH_DBF_TEXT_(SETUP, 2, "rc=%d", | |
3418 | cmd->data.setadapterparms.hdr.return_code); | |
3419 | switch (cmd->data.setadapterparms.hdr.return_code) { | |
3420 | case SET_ACCESS_CTRL_RC_SUCCESS: | |
3421 | case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED: | |
3422 | case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED: | |
3423 | { | |
3424 | card->options.isolation = access_ctrl_req->subcmd_code; | |
3425 | if (card->options.isolation == ISOLATION_MODE_NONE) { | |
3426 | dev_info(&card->gdev->dev, | |
3427 | "QDIO data connection isolation is deactivated\n"); | |
3428 | } else { | |
3429 | dev_info(&card->gdev->dev, | |
3430 | "QDIO data connection isolation is activated\n"); | |
3431 | } | |
3432 | QETH_DBF_MESSAGE(3, "OK:SET_ACCESS_CTRL(%s, %d)==%d\n", | |
3433 | card->gdev->dev.kobj.name, | |
3434 | access_ctrl_req->subcmd_code, | |
3435 | cmd->data.setadapterparms.hdr.return_code); | |
d64ecc22 EL |
3436 | break; |
3437 | } | |
3438 | case SET_ACCESS_CTRL_RC_NOT_SUPPORTED: | |
3439 | { | |
3440 | QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%s,%d)==%d\n", | |
3441 | card->gdev->dev.kobj.name, | |
3442 | access_ctrl_req->subcmd_code, | |
3443 | cmd->data.setadapterparms.hdr.return_code); | |
3444 | dev_err(&card->gdev->dev, "Adapter does not " | |
3445 | "support QDIO data connection isolation\n"); | |
3446 | ||
3447 | /* ensure isolation mode is "none" */ | |
3448 | card->options.isolation = ISOLATION_MODE_NONE; | |
d64ecc22 EL |
3449 | break; |
3450 | } | |
3451 | case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER: | |
3452 | { | |
3453 | QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d\n", | |
3454 | card->gdev->dev.kobj.name, | |
3455 | access_ctrl_req->subcmd_code, | |
3456 | cmd->data.setadapterparms.hdr.return_code); | |
3457 | dev_err(&card->gdev->dev, | |
3458 | "Adapter is dedicated. " | |
3459 | "QDIO data connection isolation not supported\n"); | |
3460 | ||
3461 | /* ensure isolation mode is "none" */ | |
3462 | card->options.isolation = ISOLATION_MODE_NONE; | |
d64ecc22 EL |
3463 | break; |
3464 | } | |
3465 | case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF: | |
3466 | { | |
3467 | QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d\n", | |
3468 | card->gdev->dev.kobj.name, | |
3469 | access_ctrl_req->subcmd_code, | |
3470 | cmd->data.setadapterparms.hdr.return_code); | |
3471 | dev_err(&card->gdev->dev, | |
3472 | "TSO does not permit QDIO data connection isolation\n"); | |
3473 | ||
3474 | /* ensure isolation mode is "none" */ | |
3475 | card->options.isolation = ISOLATION_MODE_NONE; | |
d64ecc22 EL |
3476 | break; |
3477 | } | |
3478 | default: | |
3479 | { | |
3480 | /* this should never happen */ | |
3481 | QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d" | |
3482 | "==UNKNOWN\n", | |
3483 | card->gdev->dev.kobj.name, | |
3484 | access_ctrl_req->subcmd_code, | |
3485 | cmd->data.setadapterparms.hdr.return_code); | |
3486 | ||
3487 | /* ensure isolation mode is "none" */ | |
3488 | card->options.isolation = ISOLATION_MODE_NONE; | |
d64ecc22 EL |
3489 | break; |
3490 | } | |
3491 | } | |
3492 | qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd); | |
bbb822a8 | 3493 | return 0; |
d64ecc22 EL |
3494 | } |
3495 | ||
3496 | static int qeth_setadpparms_set_access_ctrl(struct qeth_card *card, | |
3497 | enum qeth_ipa_isolation_modes isolation) | |
3498 | { | |
3499 | int rc; | |
3500 | struct qeth_cmd_buffer *iob; | |
3501 | struct qeth_ipa_cmd *cmd; | |
3502 | struct qeth_set_access_ctrl *access_ctrl_req; | |
3503 | ||
847a50fd | 3504 | QETH_CARD_TEXT(card, 4, "setacctl"); |
d64ecc22 EL |
3505 | |
3506 | QETH_DBF_TEXT_(SETUP, 2, "setacctl"); | |
3507 | QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name); | |
3508 | ||
3509 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_ACCESS_CONTROL, | |
3510 | sizeof(struct qeth_ipacmd_setadpparms_hdr) + | |
3511 | sizeof(struct qeth_set_access_ctrl)); | |
3512 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
3513 | access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl; | |
3514 | access_ctrl_req->subcmd_code = isolation; | |
3515 | ||
3516 | rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_set_access_ctrl_cb, | |
3517 | NULL); | |
3518 | QETH_DBF_TEXT_(SETUP, 2, "rc=%d", rc); | |
3519 | return rc; | |
3520 | } | |
3521 | ||
3522 | int qeth_set_access_ctrl_online(struct qeth_card *card) | |
3523 | { | |
3524 | int rc = 0; | |
3525 | ||
847a50fd | 3526 | QETH_CARD_TEXT(card, 4, "setactlo"); |
d64ecc22 | 3527 | |
5113fec0 UB |
3528 | if ((card->info.type == QETH_CARD_TYPE_OSD || |
3529 | card->info.type == QETH_CARD_TYPE_OSX) && | |
3530 | qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) { | |
d64ecc22 EL |
3531 | rc = qeth_setadpparms_set_access_ctrl(card, |
3532 | card->options.isolation); | |
3533 | if (rc) { | |
3534 | QETH_DBF_MESSAGE(3, | |
5113fec0 | 3535 | "IPA(SET_ACCESS_CTRL,%s,%d) sent failed\n", |
d64ecc22 EL |
3536 | card->gdev->dev.kobj.name, |
3537 | rc); | |
3538 | } | |
3539 | } else if (card->options.isolation != ISOLATION_MODE_NONE) { | |
3540 | card->options.isolation = ISOLATION_MODE_NONE; | |
3541 | ||
3542 | dev_err(&card->gdev->dev, "Adapter does not " | |
3543 | "support QDIO data connection isolation\n"); | |
3544 | rc = -EOPNOTSUPP; | |
3545 | } | |
3546 | return rc; | |
3547 | } | |
3548 | EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online); | |
3549 | ||
4a71df50 FB |
3550 | void qeth_tx_timeout(struct net_device *dev) |
3551 | { | |
3552 | struct qeth_card *card; | |
3553 | ||
509e2562 | 3554 | card = dev->ml_priv; |
847a50fd | 3555 | QETH_CARD_TEXT(card, 4, "txtimeo"); |
4a71df50 FB |
3556 | card->stats.tx_errors++; |
3557 | qeth_schedule_recovery(card); | |
3558 | } | |
3559 | EXPORT_SYMBOL_GPL(qeth_tx_timeout); | |
3560 | ||
3561 | int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum) | |
3562 | { | |
509e2562 | 3563 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
3564 | int rc = 0; |
3565 | ||
3566 | switch (regnum) { | |
3567 | case MII_BMCR: /* Basic mode control register */ | |
3568 | rc = BMCR_FULLDPLX; | |
3569 | if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) && | |
3570 | (card->info.link_type != QETH_LINK_TYPE_OSN) && | |
3571 | (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH)) | |
3572 | rc |= BMCR_SPEED100; | |
3573 | break; | |
3574 | case MII_BMSR: /* Basic mode status register */ | |
3575 | rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS | | |
3576 | BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL | | |
3577 | BMSR_100BASE4; | |
3578 | break; | |
3579 | case MII_PHYSID1: /* PHYS ID 1 */ | |
3580 | rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) | | |
3581 | dev->dev_addr[2]; | |
3582 | rc = (rc >> 5) & 0xFFFF; | |
3583 | break; | |
3584 | case MII_PHYSID2: /* PHYS ID 2 */ | |
3585 | rc = (dev->dev_addr[2] << 10) & 0xFFFF; | |
3586 | break; | |
3587 | case MII_ADVERTISE: /* Advertisement control reg */ | |
3588 | rc = ADVERTISE_ALL; | |
3589 | break; | |
3590 | case MII_LPA: /* Link partner ability reg */ | |
3591 | rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL | | |
3592 | LPA_100BASE4 | LPA_LPACK; | |
3593 | break; | |
3594 | case MII_EXPANSION: /* Expansion register */ | |
3595 | break; | |
3596 | case MII_DCOUNTER: /* disconnect counter */ | |
3597 | break; | |
3598 | case MII_FCSCOUNTER: /* false carrier counter */ | |
3599 | break; | |
3600 | case MII_NWAYTEST: /* N-way auto-neg test register */ | |
3601 | break; | |
3602 | case MII_RERRCOUNTER: /* rx error counter */ | |
3603 | rc = card->stats.rx_errors; | |
3604 | break; | |
3605 | case MII_SREVISION: /* silicon revision */ | |
3606 | break; | |
3607 | case MII_RESV1: /* reserved 1 */ | |
3608 | break; | |
3609 | case MII_LBRERROR: /* loopback, rx, bypass error */ | |
3610 | break; | |
3611 | case MII_PHYADDR: /* physical address */ | |
3612 | break; | |
3613 | case MII_RESV2: /* reserved 2 */ | |
3614 | break; | |
3615 | case MII_TPISTATUS: /* TPI status for 10mbps */ | |
3616 | break; | |
3617 | case MII_NCONFIG: /* network interface config */ | |
3618 | break; | |
3619 | default: | |
3620 | break; | |
3621 | } | |
3622 | return rc; | |
3623 | } | |
3624 | EXPORT_SYMBOL_GPL(qeth_mdio_read); | |
3625 | ||
3626 | static int qeth_send_ipa_snmp_cmd(struct qeth_card *card, | |
3627 | struct qeth_cmd_buffer *iob, int len, | |
3628 | int (*reply_cb)(struct qeth_card *, struct qeth_reply *, | |
3629 | unsigned long), | |
3630 | void *reply_param) | |
3631 | { | |
3632 | u16 s1, s2; | |
3633 | ||
847a50fd | 3634 | QETH_CARD_TEXT(card, 4, "sendsnmp"); |
4a71df50 FB |
3635 | |
3636 | memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); | |
3637 | memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), | |
3638 | &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); | |
3639 | /* adjust PDU length fields in IPA_PDU_HEADER */ | |
3640 | s1 = (u32) IPA_PDU_HEADER_SIZE + len; | |
3641 | s2 = (u32) len; | |
3642 | memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); | |
3643 | memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); | |
3644 | memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); | |
3645 | memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); | |
3646 | return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob, | |
3647 | reply_cb, reply_param); | |
3648 | } | |
3649 | ||
3650 | static int qeth_snmp_command_cb(struct qeth_card *card, | |
3651 | struct qeth_reply *reply, unsigned long sdata) | |
3652 | { | |
3653 | struct qeth_ipa_cmd *cmd; | |
3654 | struct qeth_arp_query_info *qinfo; | |
3655 | struct qeth_snmp_cmd *snmp; | |
3656 | unsigned char *data; | |
3657 | __u16 data_len; | |
3658 | ||
847a50fd | 3659 | QETH_CARD_TEXT(card, 3, "snpcmdcb"); |
4a71df50 FB |
3660 | |
3661 | cmd = (struct qeth_ipa_cmd *) sdata; | |
3662 | data = (unsigned char *)((char *)cmd - reply->offset); | |
3663 | qinfo = (struct qeth_arp_query_info *) reply->param; | |
3664 | snmp = &cmd->data.setadapterparms.data.snmp; | |
3665 | ||
3666 | if (cmd->hdr.return_code) { | |
847a50fd | 3667 | QETH_CARD_TEXT_(card, 4, "scer1%i", cmd->hdr.return_code); |
4a71df50 FB |
3668 | return 0; |
3669 | } | |
3670 | if (cmd->data.setadapterparms.hdr.return_code) { | |
3671 | cmd->hdr.return_code = | |
3672 | cmd->data.setadapterparms.hdr.return_code; | |
847a50fd | 3673 | QETH_CARD_TEXT_(card, 4, "scer2%i", cmd->hdr.return_code); |
4a71df50 FB |
3674 | return 0; |
3675 | } | |
3676 | data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data)); | |
3677 | if (cmd->data.setadapterparms.hdr.seq_no == 1) | |
3678 | data_len -= (__u16)((char *)&snmp->data - (char *)cmd); | |
3679 | else | |
3680 | data_len -= (__u16)((char *)&snmp->request - (char *)cmd); | |
3681 | ||
3682 | /* check if there is enough room in userspace */ | |
3683 | if ((qinfo->udata_len - qinfo->udata_offset) < data_len) { | |
847a50fd | 3684 | QETH_CARD_TEXT_(card, 4, "scer3%i", -ENOMEM); |
4a71df50 FB |
3685 | cmd->hdr.return_code = -ENOMEM; |
3686 | return 0; | |
3687 | } | |
847a50fd | 3688 | QETH_CARD_TEXT_(card, 4, "snore%i", |
4a71df50 | 3689 | cmd->data.setadapterparms.hdr.used_total); |
847a50fd | 3690 | QETH_CARD_TEXT_(card, 4, "sseqn%i", |
4a71df50 FB |
3691 | cmd->data.setadapterparms.hdr.seq_no); |
3692 | /*copy entries to user buffer*/ | |
3693 | if (cmd->data.setadapterparms.hdr.seq_no == 1) { | |
3694 | memcpy(qinfo->udata + qinfo->udata_offset, | |
3695 | (char *)snmp, | |
3696 | data_len + offsetof(struct qeth_snmp_cmd, data)); | |
3697 | qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data); | |
3698 | } else { | |
3699 | memcpy(qinfo->udata + qinfo->udata_offset, | |
3700 | (char *)&snmp->request, data_len); | |
3701 | } | |
3702 | qinfo->udata_offset += data_len; | |
3703 | /* check if all replies received ... */ | |
847a50fd | 3704 | QETH_CARD_TEXT_(card, 4, "srtot%i", |
4a71df50 | 3705 | cmd->data.setadapterparms.hdr.used_total); |
847a50fd | 3706 | QETH_CARD_TEXT_(card, 4, "srseq%i", |
4a71df50 FB |
3707 | cmd->data.setadapterparms.hdr.seq_no); |
3708 | if (cmd->data.setadapterparms.hdr.seq_no < | |
3709 | cmd->data.setadapterparms.hdr.used_total) | |
3710 | return 1; | |
3711 | return 0; | |
3712 | } | |
3713 | ||
3714 | int qeth_snmp_command(struct qeth_card *card, char __user *udata) | |
3715 | { | |
3716 | struct qeth_cmd_buffer *iob; | |
3717 | struct qeth_ipa_cmd *cmd; | |
3718 | struct qeth_snmp_ureq *ureq; | |
3719 | int req_len; | |
3720 | struct qeth_arp_query_info qinfo = {0, }; | |
3721 | int rc = 0; | |
3722 | ||
847a50fd | 3723 | QETH_CARD_TEXT(card, 3, "snmpcmd"); |
4a71df50 FB |
3724 | |
3725 | if (card->info.guestlan) | |
3726 | return -EOPNOTSUPP; | |
3727 | ||
3728 | if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) && | |
3729 | (!card->options.layer2)) { | |
4a71df50 FB |
3730 | return -EOPNOTSUPP; |
3731 | } | |
3732 | /* skip 4 bytes (data_len struct member) to get req_len */ | |
3733 | if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int))) | |
3734 | return -EFAULT; | |
4986f3f0 JL |
3735 | ureq = memdup_user(udata, req_len + sizeof(struct qeth_snmp_ureq_hdr)); |
3736 | if (IS_ERR(ureq)) { | |
847a50fd | 3737 | QETH_CARD_TEXT(card, 2, "snmpnome"); |
4986f3f0 | 3738 | return PTR_ERR(ureq); |
4a71df50 FB |
3739 | } |
3740 | qinfo.udata_len = ureq->hdr.data_len; | |
3741 | qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL); | |
3742 | if (!qinfo.udata) { | |
3743 | kfree(ureq); | |
3744 | return -ENOMEM; | |
3745 | } | |
3746 | qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr); | |
3747 | ||
3748 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL, | |
3749 | QETH_SNMP_SETADP_CMDLENGTH + req_len); | |
3750 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
3751 | memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len); | |
3752 | rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len, | |
3753 | qeth_snmp_command_cb, (void *)&qinfo); | |
3754 | if (rc) | |
14cc21b6 | 3755 | QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n", |
4a71df50 FB |
3756 | QETH_CARD_IFNAME(card), rc); |
3757 | else { | |
3758 | if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) | |
3759 | rc = -EFAULT; | |
3760 | } | |
3761 | ||
3762 | kfree(ureq); | |
3763 | kfree(qinfo.udata); | |
3764 | return rc; | |
3765 | } | |
3766 | EXPORT_SYMBOL_GPL(qeth_snmp_command); | |
3767 | ||
3768 | static inline int qeth_get_qdio_q_format(struct qeth_card *card) | |
3769 | { | |
3770 | switch (card->info.type) { | |
3771 | case QETH_CARD_TYPE_IQD: | |
3772 | return 2; | |
3773 | default: | |
3774 | return 0; | |
3775 | } | |
3776 | } | |
3777 | ||
3778 | static int qeth_qdio_establish(struct qeth_card *card) | |
3779 | { | |
3780 | struct qdio_initialize init_data; | |
3781 | char *qib_param_field; | |
3782 | struct qdio_buffer **in_sbal_ptrs; | |
3783 | struct qdio_buffer **out_sbal_ptrs; | |
3784 | int i, j, k; | |
3785 | int rc = 0; | |
3786 | ||
d11ba0c4 | 3787 | QETH_DBF_TEXT(SETUP, 2, "qdioest"); |
4a71df50 FB |
3788 | |
3789 | qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char), | |
3790 | GFP_KERNEL); | |
3791 | if (!qib_param_field) | |
3792 | return -ENOMEM; | |
3793 | ||
3794 | qeth_create_qib_param_field(card, qib_param_field); | |
3795 | qeth_create_qib_param_field_blkt(card, qib_param_field); | |
3796 | ||
3797 | in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *), | |
3798 | GFP_KERNEL); | |
3799 | if (!in_sbal_ptrs) { | |
3800 | kfree(qib_param_field); | |
3801 | return -ENOMEM; | |
3802 | } | |
3803 | for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) | |
3804 | in_sbal_ptrs[i] = (struct qdio_buffer *) | |
3805 | virt_to_phys(card->qdio.in_q->bufs[i].buffer); | |
3806 | ||
3807 | out_sbal_ptrs = | |
3808 | kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q * | |
3809 | sizeof(void *), GFP_KERNEL); | |
3810 | if (!out_sbal_ptrs) { | |
3811 | kfree(in_sbal_ptrs); | |
3812 | kfree(qib_param_field); | |
3813 | return -ENOMEM; | |
3814 | } | |
3815 | for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i) | |
3816 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) { | |
3817 | out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys( | |
3818 | card->qdio.out_qs[i]->bufs[j].buffer); | |
3819 | } | |
3820 | ||
3821 | memset(&init_data, 0, sizeof(struct qdio_initialize)); | |
3822 | init_data.cdev = CARD_DDEV(card); | |
3823 | init_data.q_format = qeth_get_qdio_q_format(card); | |
3824 | init_data.qib_param_field_format = 0; | |
3825 | init_data.qib_param_field = qib_param_field; | |
4a71df50 FB |
3826 | init_data.no_input_qs = 1; |
3827 | init_data.no_output_qs = card->qdio.no_out_queues; | |
3828 | init_data.input_handler = card->discipline.input_handler; | |
3829 | init_data.output_handler = card->discipline.output_handler; | |
a1c3ed4c | 3830 | init_data.queue_start_poll = card->discipline.start_poll; |
4a71df50 | 3831 | init_data.int_parm = (unsigned long) card; |
4a71df50 FB |
3832 | init_data.input_sbal_addr_array = (void **) in_sbal_ptrs; |
3833 | init_data.output_sbal_addr_array = (void **) out_sbal_ptrs; | |
3d6c76ff JG |
3834 | init_data.scan_threshold = |
3835 | (card->info.type == QETH_CARD_TYPE_IQD) ? 8 : 32; | |
4a71df50 FB |
3836 | |
3837 | if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED, | |
3838 | QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) { | |
cc961d40 JG |
3839 | rc = qdio_allocate(&init_data); |
3840 | if (rc) { | |
3841 | atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); | |
3842 | goto out; | |
3843 | } | |
3844 | rc = qdio_establish(&init_data); | |
3845 | if (rc) { | |
4a71df50 | 3846 | atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); |
cc961d40 JG |
3847 | qdio_free(CARD_DDEV(card)); |
3848 | } | |
4a71df50 | 3849 | } |
cc961d40 | 3850 | out: |
4a71df50 FB |
3851 | kfree(out_sbal_ptrs); |
3852 | kfree(in_sbal_ptrs); | |
3853 | kfree(qib_param_field); | |
3854 | return rc; | |
3855 | } | |
3856 | ||
3857 | static void qeth_core_free_card(struct qeth_card *card) | |
3858 | { | |
3859 | ||
d11ba0c4 PT |
3860 | QETH_DBF_TEXT(SETUP, 2, "freecrd"); |
3861 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 FB |
3862 | qeth_clean_channel(&card->read); |
3863 | qeth_clean_channel(&card->write); | |
3864 | if (card->dev) | |
3865 | free_netdev(card->dev); | |
3866 | kfree(card->ip_tbd_list); | |
3867 | qeth_free_qdio_buffers(card); | |
6bcac508 | 3868 | unregister_service_level(&card->qeth_service_level); |
4a71df50 FB |
3869 | kfree(card); |
3870 | } | |
3871 | ||
3872 | static struct ccw_device_id qeth_ids[] = { | |
5113fec0 UB |
3873 | {CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01), |
3874 | .driver_info = QETH_CARD_TYPE_OSD}, | |
3875 | {CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05), | |
3876 | .driver_info = QETH_CARD_TYPE_IQD}, | |
3877 | {CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06), | |
3878 | .driver_info = QETH_CARD_TYPE_OSN}, | |
3879 | {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03), | |
3880 | .driver_info = QETH_CARD_TYPE_OSM}, | |
3881 | {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02), | |
3882 | .driver_info = QETH_CARD_TYPE_OSX}, | |
4a71df50 FB |
3883 | {}, |
3884 | }; | |
3885 | MODULE_DEVICE_TABLE(ccw, qeth_ids); | |
3886 | ||
3887 | static struct ccw_driver qeth_ccw_driver = { | |
3888 | .name = "qeth", | |
3889 | .ids = qeth_ids, | |
3890 | .probe = ccwgroup_probe_ccwdev, | |
3891 | .remove = ccwgroup_remove_ccwdev, | |
3892 | }; | |
3893 | ||
3894 | static int qeth_core_driver_group(const char *buf, struct device *root_dev, | |
3895 | unsigned long driver_id) | |
3896 | { | |
022b660a UB |
3897 | return ccwgroup_create_from_string(root_dev, driver_id, |
3898 | &qeth_ccw_driver, 3, buf); | |
4a71df50 FB |
3899 | } |
3900 | ||
3901 | int qeth_core_hardsetup_card(struct qeth_card *card) | |
3902 | { | |
aa909224 | 3903 | int retries = 0; |
4a71df50 FB |
3904 | int rc; |
3905 | ||
d11ba0c4 | 3906 | QETH_DBF_TEXT(SETUP, 2, "hrdsetup"); |
4a71df50 FB |
3907 | atomic_set(&card->force_alloc_skb, 0); |
3908 | retry: | |
aa909224 | 3909 | if (retries) |
74eacdb9 FB |
3910 | QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n", |
3911 | dev_name(&card->gdev->dev)); | |
aa909224 UB |
3912 | ccw_device_set_offline(CARD_DDEV(card)); |
3913 | ccw_device_set_offline(CARD_WDEV(card)); | |
3914 | ccw_device_set_offline(CARD_RDEV(card)); | |
3915 | rc = ccw_device_set_online(CARD_RDEV(card)); | |
3916 | if (rc) | |
3917 | goto retriable; | |
3918 | rc = ccw_device_set_online(CARD_WDEV(card)); | |
3919 | if (rc) | |
3920 | goto retriable; | |
3921 | rc = ccw_device_set_online(CARD_DDEV(card)); | |
3922 | if (rc) | |
3923 | goto retriable; | |
4a71df50 | 3924 | rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD); |
aa909224 | 3925 | retriable: |
4a71df50 | 3926 | if (rc == -ERESTARTSYS) { |
d11ba0c4 | 3927 | QETH_DBF_TEXT(SETUP, 2, "break1"); |
4a71df50 FB |
3928 | return rc; |
3929 | } else if (rc) { | |
d11ba0c4 | 3930 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
aa909224 | 3931 | if (++retries > 3) |
4a71df50 FB |
3932 | goto out; |
3933 | else | |
3934 | goto retry; | |
3935 | } | |
4a71df50 FB |
3936 | qeth_init_tokens(card); |
3937 | qeth_init_func_level(card); | |
3938 | rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb); | |
3939 | if (rc == -ERESTARTSYS) { | |
d11ba0c4 | 3940 | QETH_DBF_TEXT(SETUP, 2, "break2"); |
4a71df50 FB |
3941 | return rc; |
3942 | } else if (rc) { | |
d11ba0c4 | 3943 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
4a71df50 FB |
3944 | if (--retries < 0) |
3945 | goto out; | |
3946 | else | |
3947 | goto retry; | |
3948 | } | |
3949 | rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb); | |
3950 | if (rc == -ERESTARTSYS) { | |
d11ba0c4 | 3951 | QETH_DBF_TEXT(SETUP, 2, "break3"); |
4a71df50 FB |
3952 | return rc; |
3953 | } else if (rc) { | |
d11ba0c4 | 3954 | QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); |
4a71df50 FB |
3955 | if (--retries < 0) |
3956 | goto out; | |
3957 | else | |
3958 | goto retry; | |
3959 | } | |
908abbb5 | 3960 | card->read_or_write_problem = 0; |
4a71df50 FB |
3961 | rc = qeth_mpc_initialize(card); |
3962 | if (rc) { | |
d11ba0c4 | 3963 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); |
4a71df50 FB |
3964 | goto out; |
3965 | } | |
3966 | return 0; | |
3967 | out: | |
74eacdb9 FB |
3968 | dev_warn(&card->gdev->dev, "The qeth device driver failed to recover " |
3969 | "an error on the device\n"); | |
3970 | QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n", | |
3971 | dev_name(&card->gdev->dev), rc); | |
4a71df50 FB |
3972 | return rc; |
3973 | } | |
3974 | EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card); | |
3975 | ||
3976 | static inline int qeth_create_skb_frag(struct qdio_buffer_element *element, | |
3977 | struct sk_buff **pskb, int offset, int *pfrag, int data_len) | |
3978 | { | |
3979 | struct page *page = virt_to_page(element->addr); | |
3980 | if (*pskb == NULL) { | |
3981 | /* the upper protocol layers assume that there is data in the | |
3982 | * skb itself. Copy a small amount (64 bytes) to make them | |
3983 | * happy. */ | |
3984 | *pskb = dev_alloc_skb(64 + ETH_HLEN); | |
3985 | if (!(*pskb)) | |
3986 | return -ENOMEM; | |
3987 | skb_reserve(*pskb, ETH_HLEN); | |
3988 | if (data_len <= 64) { | |
3989 | memcpy(skb_put(*pskb, data_len), element->addr + offset, | |
3990 | data_len); | |
3991 | } else { | |
3992 | get_page(page); | |
3993 | memcpy(skb_put(*pskb, 64), element->addr + offset, 64); | |
3994 | skb_fill_page_desc(*pskb, *pfrag, page, offset + 64, | |
3995 | data_len - 64); | |
3996 | (*pskb)->data_len += data_len - 64; | |
3997 | (*pskb)->len += data_len - 64; | |
3998 | (*pskb)->truesize += data_len - 64; | |
3999 | (*pfrag)++; | |
4000 | } | |
4001 | } else { | |
4002 | get_page(page); | |
4003 | skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len); | |
4004 | (*pskb)->data_len += data_len; | |
4005 | (*pskb)->len += data_len; | |
4006 | (*pskb)->truesize += data_len; | |
4007 | (*pfrag)++; | |
4008 | } | |
4009 | return 0; | |
4010 | } | |
4011 | ||
4012 | struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card, | |
4013 | struct qdio_buffer *buffer, | |
4014 | struct qdio_buffer_element **__element, int *__offset, | |
4015 | struct qeth_hdr **hdr) | |
4016 | { | |
4017 | struct qdio_buffer_element *element = *__element; | |
4018 | int offset = *__offset; | |
4019 | struct sk_buff *skb = NULL; | |
76b11f8e | 4020 | int skb_len = 0; |
4a71df50 FB |
4021 | void *data_ptr; |
4022 | int data_len; | |
4023 | int headroom = 0; | |
4024 | int use_rx_sg = 0; | |
4025 | int frag = 0; | |
4026 | ||
4a71df50 FB |
4027 | /* qeth_hdr must not cross element boundaries */ |
4028 | if (element->length < offset + sizeof(struct qeth_hdr)) { | |
4029 | if (qeth_is_last_sbale(element)) | |
4030 | return NULL; | |
4031 | element++; | |
4032 | offset = 0; | |
4033 | if (element->length < sizeof(struct qeth_hdr)) | |
4034 | return NULL; | |
4035 | } | |
4036 | *hdr = element->addr + offset; | |
4037 | ||
4038 | offset += sizeof(struct qeth_hdr); | |
76b11f8e UB |
4039 | switch ((*hdr)->hdr.l2.id) { |
4040 | case QETH_HEADER_TYPE_LAYER2: | |
4041 | skb_len = (*hdr)->hdr.l2.pkt_length; | |
4042 | break; | |
4043 | case QETH_HEADER_TYPE_LAYER3: | |
4a71df50 | 4044 | skb_len = (*hdr)->hdr.l3.length; |
b403e685 FB |
4045 | if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) || |
4046 | (card->info.link_type == QETH_LINK_TYPE_HSTR)) | |
4047 | headroom = TR_HLEN; | |
4048 | else | |
4049 | headroom = ETH_HLEN; | |
76b11f8e UB |
4050 | break; |
4051 | case QETH_HEADER_TYPE_OSN: | |
4052 | skb_len = (*hdr)->hdr.osn.pdu_length; | |
4053 | headroom = sizeof(struct qeth_hdr); | |
4054 | break; | |
4055 | default: | |
4056 | break; | |
4a71df50 FB |
4057 | } |
4058 | ||
4059 | if (!skb_len) | |
4060 | return NULL; | |
4061 | ||
4062 | if ((skb_len >= card->options.rx_sg_cb) && | |
4063 | (!(card->info.type == QETH_CARD_TYPE_OSN)) && | |
4064 | (!atomic_read(&card->force_alloc_skb))) { | |
4065 | use_rx_sg = 1; | |
4066 | } else { | |
4067 | skb = dev_alloc_skb(skb_len + headroom); | |
4068 | if (!skb) | |
4069 | goto no_mem; | |
4070 | if (headroom) | |
4071 | skb_reserve(skb, headroom); | |
4072 | } | |
4073 | ||
4074 | data_ptr = element->addr + offset; | |
4075 | while (skb_len) { | |
4076 | data_len = min(skb_len, (int)(element->length - offset)); | |
4077 | if (data_len) { | |
4078 | if (use_rx_sg) { | |
4079 | if (qeth_create_skb_frag(element, &skb, offset, | |
4080 | &frag, data_len)) | |
4081 | goto no_mem; | |
4082 | } else { | |
4083 | memcpy(skb_put(skb, data_len), data_ptr, | |
4084 | data_len); | |
4085 | } | |
4086 | } | |
4087 | skb_len -= data_len; | |
4088 | if (skb_len) { | |
4089 | if (qeth_is_last_sbale(element)) { | |
847a50fd | 4090 | QETH_CARD_TEXT(card, 4, "unexeob"); |
efd5d9a4 | 4091 | QETH_CARD_HEX(card, 2, buffer, sizeof(void *)); |
4a71df50 FB |
4092 | dev_kfree_skb_any(skb); |
4093 | card->stats.rx_errors++; | |
4094 | return NULL; | |
4095 | } | |
4096 | element++; | |
4097 | offset = 0; | |
4098 | data_ptr = element->addr; | |
4099 | } else { | |
4100 | offset += data_len; | |
4101 | } | |
4102 | } | |
4103 | *__element = element; | |
4104 | *__offset = offset; | |
4105 | if (use_rx_sg && card->options.performance_stats) { | |
4106 | card->perf_stats.sg_skbs_rx++; | |
4107 | card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags; | |
4108 | } | |
4109 | return skb; | |
4110 | no_mem: | |
4111 | if (net_ratelimit()) { | |
847a50fd | 4112 | QETH_CARD_TEXT(card, 2, "noskbmem"); |
4a71df50 FB |
4113 | } |
4114 | card->stats.rx_dropped++; | |
4115 | return NULL; | |
4116 | } | |
4117 | EXPORT_SYMBOL_GPL(qeth_core_get_next_skb); | |
4118 | ||
4119 | static void qeth_unregister_dbf_views(void) | |
4120 | { | |
d11ba0c4 PT |
4121 | int x; |
4122 | for (x = 0; x < QETH_DBF_INFOS; x++) { | |
4123 | debug_unregister(qeth_dbf[x].id); | |
4124 | qeth_dbf[x].id = NULL; | |
4125 | } | |
4a71df50 FB |
4126 | } |
4127 | ||
8e96c51c | 4128 | void qeth_dbf_longtext(debug_info_t *id, int level, char *fmt, ...) |
cd023216 PT |
4129 | { |
4130 | char dbf_txt_buf[32]; | |
345aa66e | 4131 | va_list args; |
cd023216 | 4132 | |
8e96c51c | 4133 | if (level > id->level) |
cd023216 | 4134 | return; |
345aa66e PT |
4135 | va_start(args, fmt); |
4136 | vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args); | |
4137 | va_end(args); | |
8e96c51c | 4138 | debug_text_event(id, level, dbf_txt_buf); |
cd023216 PT |
4139 | } |
4140 | EXPORT_SYMBOL_GPL(qeth_dbf_longtext); | |
4141 | ||
4a71df50 FB |
4142 | static int qeth_register_dbf_views(void) |
4143 | { | |
d11ba0c4 PT |
4144 | int ret; |
4145 | int x; | |
4146 | ||
4147 | for (x = 0; x < QETH_DBF_INFOS; x++) { | |
4148 | /* register the areas */ | |
4149 | qeth_dbf[x].id = debug_register(qeth_dbf[x].name, | |
4150 | qeth_dbf[x].pages, | |
4151 | qeth_dbf[x].areas, | |
4152 | qeth_dbf[x].len); | |
4153 | if (qeth_dbf[x].id == NULL) { | |
4154 | qeth_unregister_dbf_views(); | |
4155 | return -ENOMEM; | |
4156 | } | |
4a71df50 | 4157 | |
d11ba0c4 PT |
4158 | /* register a view */ |
4159 | ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view); | |
4160 | if (ret) { | |
4161 | qeth_unregister_dbf_views(); | |
4162 | return ret; | |
4163 | } | |
4a71df50 | 4164 | |
d11ba0c4 PT |
4165 | /* set a passing level */ |
4166 | debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level); | |
4167 | } | |
4a71df50 FB |
4168 | |
4169 | return 0; | |
4170 | } | |
4171 | ||
4172 | int qeth_core_load_discipline(struct qeth_card *card, | |
4173 | enum qeth_discipline_id discipline) | |
4174 | { | |
4175 | int rc = 0; | |
4176 | switch (discipline) { | |
4177 | case QETH_DISCIPLINE_LAYER3: | |
4178 | card->discipline.ccwgdriver = try_then_request_module( | |
4179 | symbol_get(qeth_l3_ccwgroup_driver), | |
4180 | "qeth_l3"); | |
4181 | break; | |
4182 | case QETH_DISCIPLINE_LAYER2: | |
4183 | card->discipline.ccwgdriver = try_then_request_module( | |
4184 | symbol_get(qeth_l2_ccwgroup_driver), | |
4185 | "qeth_l2"); | |
4186 | break; | |
4187 | } | |
4188 | if (!card->discipline.ccwgdriver) { | |
74eacdb9 FB |
4189 | dev_err(&card->gdev->dev, "There is no kernel module to " |
4190 | "support discipline %d\n", discipline); | |
4a71df50 FB |
4191 | rc = -EINVAL; |
4192 | } | |
4193 | return rc; | |
4194 | } | |
4195 | ||
4196 | void qeth_core_free_discipline(struct qeth_card *card) | |
4197 | { | |
4198 | if (card->options.layer2) | |
4199 | symbol_put(qeth_l2_ccwgroup_driver); | |
4200 | else | |
4201 | symbol_put(qeth_l3_ccwgroup_driver); | |
4202 | card->discipline.ccwgdriver = NULL; | |
4203 | } | |
4204 | ||
76b11f8e UB |
4205 | static void qeth_determine_capabilities(struct qeth_card *card) |
4206 | { | |
4207 | int rc; | |
a60389ab EL |
4208 | int length; |
4209 | char *prcd; | |
76b11f8e UB |
4210 | |
4211 | QETH_DBF_TEXT(SETUP, 2, "detcapab"); | |
4212 | rc = ccw_device_set_online(CARD_DDEV(card)); | |
4213 | if (rc) { | |
4214 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); | |
4215 | goto out; | |
4216 | } | |
4217 | ||
a60389ab EL |
4218 | |
4219 | rc = qeth_read_conf_data(card, (void **) &prcd, &length); | |
76b11f8e | 4220 | if (rc) { |
a60389ab EL |
4221 | QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n", |
4222 | dev_name(&card->gdev->dev), rc); | |
76b11f8e UB |
4223 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); |
4224 | goto out_offline; | |
4225 | } | |
a60389ab EL |
4226 | qeth_configure_unitaddr(card, prcd); |
4227 | qeth_configure_blkt_default(card, prcd); | |
4228 | kfree(prcd); | |
76b11f8e UB |
4229 | |
4230 | rc = qdio_get_ssqd_desc(CARD_DDEV(card), &card->ssqd); | |
4231 | if (rc) | |
4232 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); | |
4233 | ||
4234 | out_offline: | |
4235 | ccw_device_set_offline(CARD_DDEV(card)); | |
4236 | out: | |
4237 | return; | |
4238 | } | |
4239 | ||
4a71df50 FB |
4240 | static int qeth_core_probe_device(struct ccwgroup_device *gdev) |
4241 | { | |
4242 | struct qeth_card *card; | |
4243 | struct device *dev; | |
4244 | int rc; | |
4245 | unsigned long flags; | |
af039068 | 4246 | char dbf_name[20]; |
4a71df50 | 4247 | |
d11ba0c4 | 4248 | QETH_DBF_TEXT(SETUP, 2, "probedev"); |
4a71df50 FB |
4249 | |
4250 | dev = &gdev->dev; | |
4251 | if (!get_device(dev)) | |
4252 | return -ENODEV; | |
4253 | ||
2a0217d5 | 4254 | QETH_DBF_TEXT_(SETUP, 2, "%s", dev_name(&gdev->dev)); |
4a71df50 FB |
4255 | |
4256 | card = qeth_alloc_card(); | |
4257 | if (!card) { | |
d11ba0c4 | 4258 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM); |
4a71df50 FB |
4259 | rc = -ENOMEM; |
4260 | goto err_dev; | |
4261 | } | |
af039068 CO |
4262 | |
4263 | snprintf(dbf_name, sizeof(dbf_name), "qeth_card_%s", | |
4264 | dev_name(&gdev->dev)); | |
4265 | card->debug = debug_register(dbf_name, 2, 1, 8); | |
4266 | if (!card->debug) { | |
4267 | QETH_DBF_TEXT_(SETUP, 2, "%s", "qcdbf"); | |
4268 | rc = -ENOMEM; | |
4269 | goto err_card; | |
4270 | } | |
4271 | debug_register_view(card->debug, &debug_hex_ascii_view); | |
4272 | ||
4a71df50 FB |
4273 | card->read.ccwdev = gdev->cdev[0]; |
4274 | card->write.ccwdev = gdev->cdev[1]; | |
4275 | card->data.ccwdev = gdev->cdev[2]; | |
4276 | dev_set_drvdata(&gdev->dev, card); | |
4277 | card->gdev = gdev; | |
4278 | gdev->cdev[0]->handler = qeth_irq; | |
4279 | gdev->cdev[1]->handler = qeth_irq; | |
4280 | gdev->cdev[2]->handler = qeth_irq; | |
4281 | ||
4282 | rc = qeth_determine_card_type(card); | |
4283 | if (rc) { | |
d11ba0c4 | 4284 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
af039068 | 4285 | goto err_dbf; |
4a71df50 FB |
4286 | } |
4287 | rc = qeth_setup_card(card); | |
4288 | if (rc) { | |
d11ba0c4 | 4289 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
af039068 | 4290 | goto err_dbf; |
4a71df50 FB |
4291 | } |
4292 | ||
5113fec0 | 4293 | if (card->info.type == QETH_CARD_TYPE_OSN) |
4a71df50 | 4294 | rc = qeth_core_create_osn_attributes(dev); |
5113fec0 UB |
4295 | else |
4296 | rc = qeth_core_create_device_attributes(dev); | |
4297 | if (rc) | |
af039068 | 4298 | goto err_dbf; |
5113fec0 UB |
4299 | switch (card->info.type) { |
4300 | case QETH_CARD_TYPE_OSN: | |
4301 | case QETH_CARD_TYPE_OSM: | |
4a71df50 | 4302 | rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2); |
5113fec0 UB |
4303 | if (rc) |
4304 | goto err_attr; | |
4a71df50 | 4305 | rc = card->discipline.ccwgdriver->probe(card->gdev); |
4a71df50 | 4306 | if (rc) |
5113fec0 UB |
4307 | goto err_disc; |
4308 | case QETH_CARD_TYPE_OSD: | |
4309 | case QETH_CARD_TYPE_OSX: | |
4310 | default: | |
4311 | break; | |
4a71df50 FB |
4312 | } |
4313 | ||
4314 | write_lock_irqsave(&qeth_core_card_list.rwlock, flags); | |
4315 | list_add_tail(&card->list, &qeth_core_card_list.list); | |
4316 | write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); | |
76b11f8e UB |
4317 | |
4318 | qeth_determine_capabilities(card); | |
4a71df50 FB |
4319 | return 0; |
4320 | ||
5113fec0 UB |
4321 | err_disc: |
4322 | qeth_core_free_discipline(card); | |
4323 | err_attr: | |
4324 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
4325 | qeth_core_remove_osn_attributes(dev); | |
4326 | else | |
4327 | qeth_core_remove_device_attributes(dev); | |
af039068 CO |
4328 | err_dbf: |
4329 | debug_unregister(card->debug); | |
4a71df50 FB |
4330 | err_card: |
4331 | qeth_core_free_card(card); | |
4332 | err_dev: | |
4333 | put_device(dev); | |
4334 | return rc; | |
4335 | } | |
4336 | ||
4337 | static void qeth_core_remove_device(struct ccwgroup_device *gdev) | |
4338 | { | |
4339 | unsigned long flags; | |
4340 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
4341 | ||
28a7e4c9 | 4342 | QETH_DBF_TEXT(SETUP, 2, "removedv"); |
4a71df50 FB |
4343 | |
4344 | if (card->info.type == QETH_CARD_TYPE_OSN) { | |
4345 | qeth_core_remove_osn_attributes(&gdev->dev); | |
4346 | } else { | |
4347 | qeth_core_remove_device_attributes(&gdev->dev); | |
4348 | } | |
9dc48ccc UB |
4349 | |
4350 | if (card->discipline.ccwgdriver) { | |
4351 | card->discipline.ccwgdriver->remove(gdev); | |
4352 | qeth_core_free_discipline(card); | |
4353 | } | |
4354 | ||
af039068 | 4355 | debug_unregister(card->debug); |
4a71df50 FB |
4356 | write_lock_irqsave(&qeth_core_card_list.rwlock, flags); |
4357 | list_del(&card->list); | |
4358 | write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); | |
4359 | qeth_core_free_card(card); | |
4360 | dev_set_drvdata(&gdev->dev, NULL); | |
4361 | put_device(&gdev->dev); | |
4362 | return; | |
4363 | } | |
4364 | ||
4365 | static int qeth_core_set_online(struct ccwgroup_device *gdev) | |
4366 | { | |
4367 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
4368 | int rc = 0; | |
4369 | int def_discipline; | |
4370 | ||
4371 | if (!card->discipline.ccwgdriver) { | |
4372 | if (card->info.type == QETH_CARD_TYPE_IQD) | |
4373 | def_discipline = QETH_DISCIPLINE_LAYER3; | |
4374 | else | |
4375 | def_discipline = QETH_DISCIPLINE_LAYER2; | |
4376 | rc = qeth_core_load_discipline(card, def_discipline); | |
4377 | if (rc) | |
4378 | goto err; | |
4379 | rc = card->discipline.ccwgdriver->probe(card->gdev); | |
4380 | if (rc) | |
4381 | goto err; | |
4382 | } | |
4383 | rc = card->discipline.ccwgdriver->set_online(gdev); | |
4384 | err: | |
4385 | return rc; | |
4386 | } | |
4387 | ||
4388 | static int qeth_core_set_offline(struct ccwgroup_device *gdev) | |
4389 | { | |
4390 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
4391 | return card->discipline.ccwgdriver->set_offline(gdev); | |
4392 | } | |
4393 | ||
4394 | static void qeth_core_shutdown(struct ccwgroup_device *gdev) | |
4395 | { | |
4396 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
4397 | if (card->discipline.ccwgdriver && | |
4398 | card->discipline.ccwgdriver->shutdown) | |
4399 | card->discipline.ccwgdriver->shutdown(gdev); | |
4400 | } | |
4401 | ||
bbcfcdc8 FB |
4402 | static int qeth_core_prepare(struct ccwgroup_device *gdev) |
4403 | { | |
4404 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
4405 | if (card->discipline.ccwgdriver && | |
4406 | card->discipline.ccwgdriver->prepare) | |
4407 | return card->discipline.ccwgdriver->prepare(gdev); | |
4408 | return 0; | |
4409 | } | |
4410 | ||
4411 | static void qeth_core_complete(struct ccwgroup_device *gdev) | |
4412 | { | |
4413 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
4414 | if (card->discipline.ccwgdriver && | |
4415 | card->discipline.ccwgdriver->complete) | |
4416 | card->discipline.ccwgdriver->complete(gdev); | |
4417 | } | |
4418 | ||
4419 | static int qeth_core_freeze(struct ccwgroup_device *gdev) | |
4420 | { | |
4421 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
4422 | if (card->discipline.ccwgdriver && | |
4423 | card->discipline.ccwgdriver->freeze) | |
4424 | return card->discipline.ccwgdriver->freeze(gdev); | |
4425 | return 0; | |
4426 | } | |
4427 | ||
4428 | static int qeth_core_thaw(struct ccwgroup_device *gdev) | |
4429 | { | |
4430 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
4431 | if (card->discipline.ccwgdriver && | |
4432 | card->discipline.ccwgdriver->thaw) | |
4433 | return card->discipline.ccwgdriver->thaw(gdev); | |
4434 | return 0; | |
4435 | } | |
4436 | ||
4437 | static int qeth_core_restore(struct ccwgroup_device *gdev) | |
4438 | { | |
4439 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
4440 | if (card->discipline.ccwgdriver && | |
4441 | card->discipline.ccwgdriver->restore) | |
4442 | return card->discipline.ccwgdriver->restore(gdev); | |
4443 | return 0; | |
4444 | } | |
4445 | ||
4a71df50 FB |
4446 | static struct ccwgroup_driver qeth_core_ccwgroup_driver = { |
4447 | .owner = THIS_MODULE, | |
4448 | .name = "qeth", | |
4449 | .driver_id = 0xD8C5E3C8, | |
4450 | .probe = qeth_core_probe_device, | |
4451 | .remove = qeth_core_remove_device, | |
4452 | .set_online = qeth_core_set_online, | |
4453 | .set_offline = qeth_core_set_offline, | |
4454 | .shutdown = qeth_core_shutdown, | |
bbcfcdc8 FB |
4455 | .prepare = qeth_core_prepare, |
4456 | .complete = qeth_core_complete, | |
4457 | .freeze = qeth_core_freeze, | |
4458 | .thaw = qeth_core_thaw, | |
4459 | .restore = qeth_core_restore, | |
4a71df50 FB |
4460 | }; |
4461 | ||
4462 | static ssize_t | |
4463 | qeth_core_driver_group_store(struct device_driver *ddrv, const char *buf, | |
4464 | size_t count) | |
4465 | { | |
4466 | int err; | |
4467 | err = qeth_core_driver_group(buf, qeth_core_root_dev, | |
4468 | qeth_core_ccwgroup_driver.driver_id); | |
4469 | if (err) | |
4470 | return err; | |
4471 | else | |
4472 | return count; | |
4473 | } | |
4474 | ||
4475 | static DRIVER_ATTR(group, 0200, NULL, qeth_core_driver_group_store); | |
4476 | ||
4477 | static struct { | |
4478 | const char str[ETH_GSTRING_LEN]; | |
4479 | } qeth_ethtool_stats_keys[] = { | |
4480 | /* 0 */{"rx skbs"}, | |
4481 | {"rx buffers"}, | |
4482 | {"tx skbs"}, | |
4483 | {"tx buffers"}, | |
4484 | {"tx skbs no packing"}, | |
4485 | {"tx buffers no packing"}, | |
4486 | {"tx skbs packing"}, | |
4487 | {"tx buffers packing"}, | |
4488 | {"tx sg skbs"}, | |
4489 | {"tx sg frags"}, | |
4490 | /* 10 */{"rx sg skbs"}, | |
4491 | {"rx sg frags"}, | |
4492 | {"rx sg page allocs"}, | |
4493 | {"tx large kbytes"}, | |
4494 | {"tx large count"}, | |
4495 | {"tx pk state ch n->p"}, | |
4496 | {"tx pk state ch p->n"}, | |
4497 | {"tx pk watermark low"}, | |
4498 | {"tx pk watermark high"}, | |
4499 | {"queue 0 buffer usage"}, | |
4500 | /* 20 */{"queue 1 buffer usage"}, | |
4501 | {"queue 2 buffer usage"}, | |
4502 | {"queue 3 buffer usage"}, | |
a1c3ed4c FB |
4503 | {"rx poll time"}, |
4504 | {"rx poll count"}, | |
4a71df50 FB |
4505 | {"rx do_QDIO time"}, |
4506 | {"rx do_QDIO count"}, | |
4507 | {"tx handler time"}, | |
4508 | {"tx handler count"}, | |
4509 | {"tx time"}, | |
4510 | /* 30 */{"tx count"}, | |
4511 | {"tx do_QDIO time"}, | |
4512 | {"tx do_QDIO count"}, | |
f61a0d05 | 4513 | {"tx csum"}, |
c3b4a740 | 4514 | {"tx lin"}, |
4a71df50 FB |
4515 | }; |
4516 | ||
df8b4ec8 | 4517 | int qeth_core_get_sset_count(struct net_device *dev, int stringset) |
4a71df50 | 4518 | { |
df8b4ec8 BH |
4519 | switch (stringset) { |
4520 | case ETH_SS_STATS: | |
4521 | return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN); | |
4522 | default: | |
4523 | return -EINVAL; | |
4524 | } | |
4a71df50 | 4525 | } |
df8b4ec8 | 4526 | EXPORT_SYMBOL_GPL(qeth_core_get_sset_count); |
4a71df50 FB |
4527 | |
4528 | void qeth_core_get_ethtool_stats(struct net_device *dev, | |
4529 | struct ethtool_stats *stats, u64 *data) | |
4530 | { | |
509e2562 | 4531 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
4532 | data[0] = card->stats.rx_packets - |
4533 | card->perf_stats.initial_rx_packets; | |
4534 | data[1] = card->perf_stats.bufs_rec; | |
4535 | data[2] = card->stats.tx_packets - | |
4536 | card->perf_stats.initial_tx_packets; | |
4537 | data[3] = card->perf_stats.bufs_sent; | |
4538 | data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets | |
4539 | - card->perf_stats.skbs_sent_pack; | |
4540 | data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack; | |
4541 | data[6] = card->perf_stats.skbs_sent_pack; | |
4542 | data[7] = card->perf_stats.bufs_sent_pack; | |
4543 | data[8] = card->perf_stats.sg_skbs_sent; | |
4544 | data[9] = card->perf_stats.sg_frags_sent; | |
4545 | data[10] = card->perf_stats.sg_skbs_rx; | |
4546 | data[11] = card->perf_stats.sg_frags_rx; | |
4547 | data[12] = card->perf_stats.sg_alloc_page_rx; | |
4548 | data[13] = (card->perf_stats.large_send_bytes >> 10); | |
4549 | data[14] = card->perf_stats.large_send_cnt; | |
4550 | data[15] = card->perf_stats.sc_dp_p; | |
4551 | data[16] = card->perf_stats.sc_p_dp; | |
4552 | data[17] = QETH_LOW_WATERMARK_PACK; | |
4553 | data[18] = QETH_HIGH_WATERMARK_PACK; | |
4554 | data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers); | |
4555 | data[20] = (card->qdio.no_out_queues > 1) ? | |
4556 | atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0; | |
4557 | data[21] = (card->qdio.no_out_queues > 2) ? | |
4558 | atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0; | |
4559 | data[22] = (card->qdio.no_out_queues > 3) ? | |
4560 | atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0; | |
4561 | data[23] = card->perf_stats.inbound_time; | |
4562 | data[24] = card->perf_stats.inbound_cnt; | |
4563 | data[25] = card->perf_stats.inbound_do_qdio_time; | |
4564 | data[26] = card->perf_stats.inbound_do_qdio_cnt; | |
4565 | data[27] = card->perf_stats.outbound_handler_time; | |
4566 | data[28] = card->perf_stats.outbound_handler_cnt; | |
4567 | data[29] = card->perf_stats.outbound_time; | |
4568 | data[30] = card->perf_stats.outbound_cnt; | |
4569 | data[31] = card->perf_stats.outbound_do_qdio_time; | |
4570 | data[32] = card->perf_stats.outbound_do_qdio_cnt; | |
f61a0d05 | 4571 | data[33] = card->perf_stats.tx_csum; |
c3b4a740 | 4572 | data[34] = card->perf_stats.tx_lin; |
4a71df50 FB |
4573 | } |
4574 | EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats); | |
4575 | ||
4576 | void qeth_core_get_strings(struct net_device *dev, u32 stringset, u8 *data) | |
4577 | { | |
4578 | switch (stringset) { | |
4579 | case ETH_SS_STATS: | |
4580 | memcpy(data, &qeth_ethtool_stats_keys, | |
4581 | sizeof(qeth_ethtool_stats_keys)); | |
4582 | break; | |
4583 | default: | |
4584 | WARN_ON(1); | |
4585 | break; | |
4586 | } | |
4587 | } | |
4588 | EXPORT_SYMBOL_GPL(qeth_core_get_strings); | |
4589 | ||
4590 | void qeth_core_get_drvinfo(struct net_device *dev, | |
4591 | struct ethtool_drvinfo *info) | |
4592 | { | |
509e2562 | 4593 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
4594 | if (card->options.layer2) |
4595 | strcpy(info->driver, "qeth_l2"); | |
4596 | else | |
4597 | strcpy(info->driver, "qeth_l3"); | |
4598 | ||
4599 | strcpy(info->version, "1.0"); | |
4600 | strcpy(info->fw_version, card->info.mcl_level); | |
4601 | sprintf(info->bus_info, "%s/%s/%s", | |
4602 | CARD_RDEV_ID(card), | |
4603 | CARD_WDEV_ID(card), | |
4604 | CARD_DDEV_ID(card)); | |
4605 | } | |
4606 | EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo); | |
4607 | ||
3f9975aa FB |
4608 | int qeth_core_ethtool_get_settings(struct net_device *netdev, |
4609 | struct ethtool_cmd *ecmd) | |
4610 | { | |
509e2562 | 4611 | struct qeth_card *card = netdev->ml_priv; |
3f9975aa FB |
4612 | enum qeth_link_types link_type; |
4613 | ||
4614 | if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan)) | |
4615 | link_type = QETH_LINK_TYPE_10GBIT_ETH; | |
4616 | else | |
4617 | link_type = card->info.link_type; | |
4618 | ||
4619 | ecmd->transceiver = XCVR_INTERNAL; | |
4620 | ecmd->supported = SUPPORTED_Autoneg; | |
4621 | ecmd->advertising = ADVERTISED_Autoneg; | |
4622 | ecmd->duplex = DUPLEX_FULL; | |
4623 | ecmd->autoneg = AUTONEG_ENABLE; | |
4624 | ||
4625 | switch (link_type) { | |
4626 | case QETH_LINK_TYPE_FAST_ETH: | |
4627 | case QETH_LINK_TYPE_LANE_ETH100: | |
4628 | ecmd->supported |= SUPPORTED_10baseT_Half | | |
4629 | SUPPORTED_10baseT_Full | | |
4630 | SUPPORTED_100baseT_Half | | |
4631 | SUPPORTED_100baseT_Full | | |
4632 | SUPPORTED_TP; | |
4633 | ecmd->advertising |= ADVERTISED_10baseT_Half | | |
4634 | ADVERTISED_10baseT_Full | | |
4635 | ADVERTISED_100baseT_Half | | |
4636 | ADVERTISED_100baseT_Full | | |
4637 | ADVERTISED_TP; | |
4638 | ecmd->speed = SPEED_100; | |
4639 | ecmd->port = PORT_TP; | |
4640 | break; | |
4641 | ||
4642 | case QETH_LINK_TYPE_GBIT_ETH: | |
4643 | case QETH_LINK_TYPE_LANE_ETH1000: | |
4644 | ecmd->supported |= SUPPORTED_10baseT_Half | | |
4645 | SUPPORTED_10baseT_Full | | |
4646 | SUPPORTED_100baseT_Half | | |
4647 | SUPPORTED_100baseT_Full | | |
4648 | SUPPORTED_1000baseT_Half | | |
4649 | SUPPORTED_1000baseT_Full | | |
4650 | SUPPORTED_FIBRE; | |
4651 | ecmd->advertising |= ADVERTISED_10baseT_Half | | |
4652 | ADVERTISED_10baseT_Full | | |
4653 | ADVERTISED_100baseT_Half | | |
4654 | ADVERTISED_100baseT_Full | | |
4655 | ADVERTISED_1000baseT_Half | | |
4656 | ADVERTISED_1000baseT_Full | | |
4657 | ADVERTISED_FIBRE; | |
4658 | ecmd->speed = SPEED_1000; | |
4659 | ecmd->port = PORT_FIBRE; | |
4660 | break; | |
4661 | ||
4662 | case QETH_LINK_TYPE_10GBIT_ETH: | |
4663 | ecmd->supported |= SUPPORTED_10baseT_Half | | |
4664 | SUPPORTED_10baseT_Full | | |
4665 | SUPPORTED_100baseT_Half | | |
4666 | SUPPORTED_100baseT_Full | | |
4667 | SUPPORTED_1000baseT_Half | | |
4668 | SUPPORTED_1000baseT_Full | | |
4669 | SUPPORTED_10000baseT_Full | | |
4670 | SUPPORTED_FIBRE; | |
4671 | ecmd->advertising |= ADVERTISED_10baseT_Half | | |
4672 | ADVERTISED_10baseT_Full | | |
4673 | ADVERTISED_100baseT_Half | | |
4674 | ADVERTISED_100baseT_Full | | |
4675 | ADVERTISED_1000baseT_Half | | |
4676 | ADVERTISED_1000baseT_Full | | |
4677 | ADVERTISED_10000baseT_Full | | |
4678 | ADVERTISED_FIBRE; | |
4679 | ecmd->speed = SPEED_10000; | |
4680 | ecmd->port = PORT_FIBRE; | |
4681 | break; | |
4682 | ||
4683 | default: | |
4684 | ecmd->supported |= SUPPORTED_10baseT_Half | | |
4685 | SUPPORTED_10baseT_Full | | |
4686 | SUPPORTED_TP; | |
4687 | ecmd->advertising |= ADVERTISED_10baseT_Half | | |
4688 | ADVERTISED_10baseT_Full | | |
4689 | ADVERTISED_TP; | |
4690 | ecmd->speed = SPEED_10; | |
4691 | ecmd->port = PORT_TP; | |
4692 | } | |
4693 | ||
4694 | return 0; | |
4695 | } | |
4696 | EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_settings); | |
4697 | ||
4a71df50 FB |
4698 | static int __init qeth_core_init(void) |
4699 | { | |
4700 | int rc; | |
4701 | ||
74eacdb9 | 4702 | pr_info("loading core functions\n"); |
4a71df50 FB |
4703 | INIT_LIST_HEAD(&qeth_core_card_list.list); |
4704 | rwlock_init(&qeth_core_card_list.rwlock); | |
4705 | ||
4706 | rc = qeth_register_dbf_views(); | |
4707 | if (rc) | |
4708 | goto out_err; | |
4709 | rc = ccw_driver_register(&qeth_ccw_driver); | |
4710 | if (rc) | |
4711 | goto ccw_err; | |
4712 | rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver); | |
4713 | if (rc) | |
4714 | goto ccwgroup_err; | |
4715 | rc = driver_create_file(&qeth_core_ccwgroup_driver.driver, | |
4716 | &driver_attr_group); | |
4717 | if (rc) | |
4718 | goto driver_err; | |
035da16f | 4719 | qeth_core_root_dev = root_device_register("qeth"); |
4a71df50 FB |
4720 | rc = IS_ERR(qeth_core_root_dev) ? PTR_ERR(qeth_core_root_dev) : 0; |
4721 | if (rc) | |
4722 | goto register_err; | |
4a71df50 | 4723 | |
683d718a FB |
4724 | qeth_core_header_cache = kmem_cache_create("qeth_hdr", |
4725 | sizeof(struct qeth_hdr) + ETH_HLEN, 64, 0, NULL); | |
4726 | if (!qeth_core_header_cache) { | |
4727 | rc = -ENOMEM; | |
4728 | goto slab_err; | |
4729 | } | |
4730 | ||
4731 | return 0; | |
4732 | slab_err: | |
035da16f | 4733 | root_device_unregister(qeth_core_root_dev); |
4a71df50 FB |
4734 | register_err: |
4735 | driver_remove_file(&qeth_core_ccwgroup_driver.driver, | |
4736 | &driver_attr_group); | |
4737 | driver_err: | |
4738 | ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver); | |
4739 | ccwgroup_err: | |
4740 | ccw_driver_unregister(&qeth_ccw_driver); | |
4741 | ccw_err: | |
74eacdb9 | 4742 | QETH_DBF_MESSAGE(2, "Initialization failed with code %d\n", rc); |
4a71df50 FB |
4743 | qeth_unregister_dbf_views(); |
4744 | out_err: | |
74eacdb9 | 4745 | pr_err("Initializing the qeth device driver failed\n"); |
4a71df50 FB |
4746 | return rc; |
4747 | } | |
4748 | ||
4749 | static void __exit qeth_core_exit(void) | |
4750 | { | |
035da16f | 4751 | root_device_unregister(qeth_core_root_dev); |
4a71df50 FB |
4752 | driver_remove_file(&qeth_core_ccwgroup_driver.driver, |
4753 | &driver_attr_group); | |
4754 | ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver); | |
4755 | ccw_driver_unregister(&qeth_ccw_driver); | |
683d718a | 4756 | kmem_cache_destroy(qeth_core_header_cache); |
4a71df50 | 4757 | qeth_unregister_dbf_views(); |
74eacdb9 | 4758 | pr_info("core functions removed\n"); |
4a71df50 FB |
4759 | } |
4760 | ||
4761 | module_init(qeth_core_init); | |
4762 | module_exit(qeth_core_exit); | |
4763 | MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); | |
4764 | MODULE_DESCRIPTION("qeth core functions"); | |
4765 | MODULE_LICENSE("GPL"); |