Commit | Line | Data |
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dea3101e | 1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
c44ce173 JSEC |
3 | * Fibre Channel Host Bus Adapters. * |
4 | * Copyright (C) 2004-2005 Emulex. All rights reserved. * | |
5 | * EMULEX and SLI are trademarks of Emulex. * | |
dea3101e | 6 | * www.emulex.com * |
c44ce173 | 7 | * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
dea3101e | 8 | * * |
9 | * This program is free software; you can redistribute it and/or * | |
c44ce173 JSEC |
10 | * modify it under the terms of version 2 of the GNU General * |
11 | * Public License as published by the Free Software Foundation. * | |
12 | * This program is distributed in the hope that it will be useful. * | |
13 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * | |
14 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * | |
15 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * | |
16 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * | |
17 | * TO BE LEGALLY INVALID. See the GNU General Public License for * | |
18 | * more details, a copy of which can be found in the file COPYING * | |
19 | * included with this package. * | |
dea3101e | 20 | *******************************************************************/ |
21 | ||
dea3101e | 22 | #include <linux/blkdev.h> |
23 | #include <linux/pci.h> | |
24 | #include <linux/interrupt.h> | |
25 | #include <linux/delay.h> | |
26 | ||
91886523 | 27 | #include <scsi/scsi.h> |
dea3101e | 28 | #include <scsi/scsi_cmnd.h> |
29 | #include <scsi/scsi_device.h> | |
30 | #include <scsi/scsi_host.h> | |
f888ba3c | 31 | #include <scsi/scsi_transport_fc.h> |
dea3101e | 32 | |
33 | #include "lpfc_hw.h" | |
34 | #include "lpfc_sli.h" | |
35 | #include "lpfc_disc.h" | |
36 | #include "lpfc_scsi.h" | |
37 | #include "lpfc.h" | |
38 | #include "lpfc_crtn.h" | |
39 | #include "lpfc_logmsg.h" | |
40 | #include "lpfc_compat.h" | |
41 | ||
42 | /* | |
43 | * Define macro to log: Mailbox command x%x cannot issue Data | |
44 | * This allows multiple uses of lpfc_msgBlk0311 | |
45 | * w/o perturbing log msg utility. | |
46 | */ | |
47 | #define LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag) \ | |
48 | lpfc_printf_log(phba, \ | |
49 | KERN_INFO, \ | |
50 | LOG_MBOX | LOG_SLI, \ | |
51 | "%d:0311 Mailbox command x%x cannot issue " \ | |
52 | "Data: x%x x%x x%x\n", \ | |
53 | phba->brd_no, \ | |
54 | mb->mbxCommand, \ | |
55 | phba->hba_state, \ | |
56 | psli->sli_flag, \ | |
57 | flag); | |
58 | ||
59 | ||
60 | /* There are only four IOCB completion types. */ | |
61 | typedef enum _lpfc_iocb_type { | |
62 | LPFC_UNKNOWN_IOCB, | |
63 | LPFC_UNSOL_IOCB, | |
64 | LPFC_SOL_IOCB, | |
65 | LPFC_ABORT_IOCB | |
66 | } lpfc_iocb_type; | |
67 | ||
0bd4ca25 JSEC |
68 | struct lpfc_iocbq * |
69 | lpfc_sli_get_iocbq(struct lpfc_hba * phba) | |
70 | { | |
71 | struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list; | |
72 | struct lpfc_iocbq * iocbq = NULL; | |
73 | ||
74 | list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list); | |
75 | return iocbq; | |
76 | } | |
77 | ||
604a3e30 JB |
78 | void |
79 | lpfc_sli_release_iocbq(struct lpfc_hba * phba, struct lpfc_iocbq * iocbq) | |
80 | { | |
81 | size_t start_clean = (size_t)(&((struct lpfc_iocbq *)NULL)->iocb); | |
82 | ||
83 | /* | |
84 | * Clean all volatile data fields, preserve iotag and node struct. | |
85 | */ | |
86 | memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean); | |
87 | list_add_tail(&iocbq->list, &phba->lpfc_iocb_list); | |
88 | } | |
89 | ||
dea3101e | 90 | /* |
91 | * Translate the iocb command to an iocb command type used to decide the final | |
92 | * disposition of each completed IOCB. | |
93 | */ | |
94 | static lpfc_iocb_type | |
95 | lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd) | |
96 | { | |
97 | lpfc_iocb_type type = LPFC_UNKNOWN_IOCB; | |
98 | ||
99 | if (iocb_cmnd > CMD_MAX_IOCB_CMD) | |
100 | return 0; | |
101 | ||
102 | switch (iocb_cmnd) { | |
103 | case CMD_XMIT_SEQUENCE_CR: | |
104 | case CMD_XMIT_SEQUENCE_CX: | |
105 | case CMD_XMIT_BCAST_CN: | |
106 | case CMD_XMIT_BCAST_CX: | |
107 | case CMD_ELS_REQUEST_CR: | |
108 | case CMD_ELS_REQUEST_CX: | |
109 | case CMD_CREATE_XRI_CR: | |
110 | case CMD_CREATE_XRI_CX: | |
111 | case CMD_GET_RPI_CN: | |
112 | case CMD_XMIT_ELS_RSP_CX: | |
113 | case CMD_GET_RPI_CR: | |
114 | case CMD_FCP_IWRITE_CR: | |
115 | case CMD_FCP_IWRITE_CX: | |
116 | case CMD_FCP_IREAD_CR: | |
117 | case CMD_FCP_IREAD_CX: | |
118 | case CMD_FCP_ICMND_CR: | |
119 | case CMD_FCP_ICMND_CX: | |
120 | case CMD_ADAPTER_MSG: | |
121 | case CMD_ADAPTER_DUMP: | |
122 | case CMD_XMIT_SEQUENCE64_CR: | |
123 | case CMD_XMIT_SEQUENCE64_CX: | |
124 | case CMD_XMIT_BCAST64_CN: | |
125 | case CMD_XMIT_BCAST64_CX: | |
126 | case CMD_ELS_REQUEST64_CR: | |
127 | case CMD_ELS_REQUEST64_CX: | |
128 | case CMD_FCP_IWRITE64_CR: | |
129 | case CMD_FCP_IWRITE64_CX: | |
130 | case CMD_FCP_IREAD64_CR: | |
131 | case CMD_FCP_IREAD64_CX: | |
132 | case CMD_FCP_ICMND64_CR: | |
133 | case CMD_FCP_ICMND64_CX: | |
134 | case CMD_GEN_REQUEST64_CR: | |
135 | case CMD_GEN_REQUEST64_CX: | |
136 | case CMD_XMIT_ELS_RSP64_CX: | |
137 | type = LPFC_SOL_IOCB; | |
138 | break; | |
139 | case CMD_ABORT_XRI_CN: | |
140 | case CMD_ABORT_XRI_CX: | |
141 | case CMD_CLOSE_XRI_CN: | |
142 | case CMD_CLOSE_XRI_CX: | |
143 | case CMD_XRI_ABORTED_CX: | |
144 | case CMD_ABORT_MXRI64_CN: | |
145 | type = LPFC_ABORT_IOCB; | |
146 | break; | |
147 | case CMD_RCV_SEQUENCE_CX: | |
148 | case CMD_RCV_ELS_REQ_CX: | |
149 | case CMD_RCV_SEQUENCE64_CX: | |
150 | case CMD_RCV_ELS_REQ64_CX: | |
151 | type = LPFC_UNSOL_IOCB; | |
152 | break; | |
153 | default: | |
154 | type = LPFC_UNKNOWN_IOCB; | |
155 | break; | |
156 | } | |
157 | ||
158 | return type; | |
159 | } | |
160 | ||
161 | static int | |
162 | lpfc_sli_ring_map(struct lpfc_hba * phba, LPFC_MBOXQ_t *pmb) | |
163 | { | |
164 | struct lpfc_sli *psli = &phba->sli; | |
165 | MAILBOX_t *pmbox = &pmb->mb; | |
166 | int i, rc; | |
167 | ||
168 | for (i = 0; i < psli->num_rings; i++) { | |
169 | phba->hba_state = LPFC_INIT_MBX_CMDS; | |
170 | lpfc_config_ring(phba, i, pmb); | |
171 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
172 | if (rc != MBX_SUCCESS) { | |
173 | lpfc_printf_log(phba, | |
174 | KERN_ERR, | |
175 | LOG_INIT, | |
176 | "%d:0446 Adapter failed to init, " | |
177 | "mbxCmd x%x CFG_RING, mbxStatus x%x, " | |
178 | "ring %d\n", | |
179 | phba->brd_no, | |
180 | pmbox->mbxCommand, | |
181 | pmbox->mbxStatus, | |
182 | i); | |
183 | phba->hba_state = LPFC_HBA_ERROR; | |
184 | return -ENXIO; | |
185 | } | |
186 | } | |
187 | return 0; | |
188 | } | |
189 | ||
190 | static int | |
191 | lpfc_sli_ringtxcmpl_put(struct lpfc_hba * phba, | |
192 | struct lpfc_sli_ring * pring, struct lpfc_iocbq * piocb) | |
193 | { | |
194 | uint16_t iotag; | |
195 | ||
196 | list_add_tail(&piocb->list, &pring->txcmplq); | |
197 | pring->txcmplq_cnt++; | |
198 | if (unlikely(pring->ringno == LPFC_ELS_RING)) | |
199 | mod_timer(&phba->els_tmofunc, | |
200 | jiffies + HZ * (phba->fc_ratov << 1)); | |
201 | ||
202 | if (pring->fast_lookup) { | |
203 | /* Setup fast lookup based on iotag for completion */ | |
204 | iotag = piocb->iocb.ulpIoTag; | |
205 | if (iotag && (iotag < pring->fast_iotag)) | |
206 | *(pring->fast_lookup + iotag) = piocb; | |
207 | else { | |
208 | ||
209 | /* Cmd ring <ringno> put: iotag <iotag> greater then | |
210 | configured max <fast_iotag> wd0 <icmd> */ | |
211 | lpfc_printf_log(phba, | |
212 | KERN_ERR, | |
213 | LOG_SLI, | |
214 | "%d:0316 Cmd ring %d put: iotag x%x " | |
215 | "greater then configured max x%x " | |
216 | "wd0 x%x\n", | |
217 | phba->brd_no, | |
218 | pring->ringno, iotag, | |
219 | pring->fast_iotag, | |
220 | *(((uint32_t *)(&piocb->iocb)) + 7)); | |
221 | } | |
222 | } | |
223 | return (0); | |
224 | } | |
225 | ||
226 | static struct lpfc_iocbq * | |
227 | lpfc_sli_ringtx_get(struct lpfc_hba * phba, struct lpfc_sli_ring * pring) | |
228 | { | |
229 | struct list_head *dlp; | |
230 | struct lpfc_iocbq *cmd_iocb; | |
231 | ||
232 | dlp = &pring->txq; | |
233 | cmd_iocb = NULL; | |
234 | list_remove_head((&pring->txq), cmd_iocb, | |
235 | struct lpfc_iocbq, | |
236 | list); | |
237 | if (cmd_iocb) { | |
238 | /* If the first ptr is not equal to the list header, | |
239 | * deque the IOCBQ_t and return it. | |
240 | */ | |
241 | pring->txq_cnt--; | |
242 | } | |
243 | return (cmd_iocb); | |
244 | } | |
245 | ||
246 | static IOCB_t * | |
247 | lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
248 | { | |
4cc2da1d | 249 | struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno]; |
dea3101e | 250 | uint32_t max_cmd_idx = pring->numCiocb; |
251 | IOCB_t *iocb = NULL; | |
252 | ||
253 | if ((pring->next_cmdidx == pring->cmdidx) && | |
254 | (++pring->next_cmdidx >= max_cmd_idx)) | |
255 | pring->next_cmdidx = 0; | |
256 | ||
257 | if (unlikely(pring->local_getidx == pring->next_cmdidx)) { | |
258 | ||
259 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
260 | ||
261 | if (unlikely(pring->local_getidx >= max_cmd_idx)) { | |
262 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
263 | "%d:0315 Ring %d issue: portCmdGet %d " | |
264 | "is bigger then cmd ring %d\n", | |
265 | phba->brd_no, pring->ringno, | |
266 | pring->local_getidx, max_cmd_idx); | |
267 | ||
268 | phba->hba_state = LPFC_HBA_ERROR; | |
269 | /* | |
270 | * All error attention handlers are posted to | |
271 | * worker thread | |
272 | */ | |
273 | phba->work_ha |= HA_ERATT; | |
274 | phba->work_hs = HS_FFER3; | |
275 | if (phba->work_wait) | |
276 | wake_up(phba->work_wait); | |
277 | ||
278 | return NULL; | |
279 | } | |
280 | ||
281 | if (pring->local_getidx == pring->next_cmdidx) | |
282 | return NULL; | |
283 | } | |
284 | ||
285 | iocb = IOCB_ENTRY(pring->cmdringaddr, pring->cmdidx); | |
286 | ||
287 | return iocb; | |
288 | } | |
289 | ||
604a3e30 JB |
290 | uint16_t |
291 | lpfc_sli_next_iotag(struct lpfc_hba * phba, struct lpfc_iocbq * iocbq) | |
dea3101e | 292 | { |
604a3e30 JB |
293 | struct lpfc_iocbq ** new_arr; |
294 | struct lpfc_iocbq ** old_arr; | |
295 | size_t new_len; | |
296 | struct lpfc_sli *psli = &phba->sli; | |
297 | uint16_t iotag; | |
dea3101e | 298 | |
604a3e30 JB |
299 | spin_lock_irq(phba->host->host_lock); |
300 | iotag = psli->last_iotag; | |
301 | if(++iotag < psli->iocbq_lookup_len) { | |
302 | psli->last_iotag = iotag; | |
303 | psli->iocbq_lookup[iotag] = iocbq; | |
304 | spin_unlock_irq(phba->host->host_lock); | |
305 | iocbq->iotag = iotag; | |
306 | return iotag; | |
307 | } | |
308 | else if (psli->iocbq_lookup_len < (0xffff | |
309 | - LPFC_IOCBQ_LOOKUP_INCREMENT)) { | |
310 | new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT; | |
311 | spin_unlock_irq(phba->host->host_lock); | |
312 | new_arr = kmalloc(new_len * sizeof (struct lpfc_iocbq *), | |
313 | GFP_KERNEL); | |
314 | if (new_arr) { | |
315 | memset((char *)new_arr, 0, | |
316 | new_len * sizeof (struct lpfc_iocbq *)); | |
317 | spin_lock_irq(phba->host->host_lock); | |
318 | old_arr = psli->iocbq_lookup; | |
319 | if (new_len <= psli->iocbq_lookup_len) { | |
320 | /* highly unprobable case */ | |
321 | kfree(new_arr); | |
322 | iotag = psli->last_iotag; | |
323 | if(++iotag < psli->iocbq_lookup_len) { | |
324 | psli->last_iotag = iotag; | |
325 | psli->iocbq_lookup[iotag] = iocbq; | |
326 | spin_unlock_irq(phba->host->host_lock); | |
327 | iocbq->iotag = iotag; | |
328 | return iotag; | |
329 | } | |
330 | spin_unlock_irq(phba->host->host_lock); | |
331 | return 0; | |
332 | } | |
333 | if (psli->iocbq_lookup) | |
334 | memcpy(new_arr, old_arr, | |
335 | ((psli->last_iotag + 1) * | |
336 | sizeof (struct lpfc_iocbq *))); | |
337 | psli->iocbq_lookup = new_arr; | |
338 | psli->iocbq_lookup_len = new_len; | |
339 | psli->last_iotag = iotag; | |
340 | psli->iocbq_lookup[iotag] = iocbq; | |
341 | spin_unlock_irq(phba->host->host_lock); | |
342 | iocbq->iotag = iotag; | |
343 | kfree(old_arr); | |
344 | return iotag; | |
345 | } | |
dea3101e | 346 | } |
347 | ||
604a3e30 JB |
348 | lpfc_printf_log(phba, KERN_ERR,LOG_SLI, |
349 | "%d:0318 Failed to allocate IOTAG.last IOTAG is %d\n", | |
350 | phba->brd_no, psli->last_iotag); | |
dea3101e | 351 | |
604a3e30 | 352 | return 0; |
dea3101e | 353 | } |
354 | ||
355 | static void | |
356 | lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
357 | IOCB_t *iocb, struct lpfc_iocbq *nextiocb) | |
358 | { | |
359 | /* | |
604a3e30 | 360 | * Set up an iotag |
dea3101e | 361 | */ |
604a3e30 | 362 | nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0; |
dea3101e | 363 | |
364 | /* | |
365 | * Issue iocb command to adapter | |
366 | */ | |
367 | lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, sizeof (IOCB_t)); | |
368 | wmb(); | |
369 | pring->stats.iocb_cmd++; | |
370 | ||
371 | /* | |
372 | * If there is no completion routine to call, we can release the | |
373 | * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF, | |
374 | * that have no rsp ring completion, iocb_cmpl MUST be NULL. | |
375 | */ | |
376 | if (nextiocb->iocb_cmpl) | |
377 | lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb); | |
604a3e30 JB |
378 | else |
379 | lpfc_sli_release_iocbq(phba, nextiocb); | |
dea3101e | 380 | |
381 | /* | |
382 | * Let the HBA know what IOCB slot will be the next one the | |
383 | * driver will put a command into. | |
384 | */ | |
385 | pring->cmdidx = pring->next_cmdidx; | |
f91b392c | 386 | writel(pring->cmdidx, phba->MBslimaddr |
dea3101e | 387 | + (SLIMOFF + (pring->ringno * 2)) * 4); |
388 | } | |
389 | ||
390 | static void | |
391 | lpfc_sli_update_full_ring(struct lpfc_hba * phba, | |
392 | struct lpfc_sli_ring *pring) | |
393 | { | |
394 | int ringno = pring->ringno; | |
395 | ||
396 | pring->flag |= LPFC_CALL_RING_AVAILABLE; | |
397 | ||
398 | wmb(); | |
399 | ||
400 | /* | |
401 | * Set ring 'ringno' to SET R0CE_REQ in Chip Att register. | |
402 | * The HBA will tell us when an IOCB entry is available. | |
403 | */ | |
404 | writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr); | |
405 | readl(phba->CAregaddr); /* flush */ | |
406 | ||
407 | pring->stats.iocb_cmd_full++; | |
408 | } | |
409 | ||
410 | static void | |
411 | lpfc_sli_update_ring(struct lpfc_hba * phba, | |
412 | struct lpfc_sli_ring *pring) | |
413 | { | |
414 | int ringno = pring->ringno; | |
415 | ||
416 | /* | |
417 | * Tell the HBA that there is work to do in this ring. | |
418 | */ | |
419 | wmb(); | |
420 | writel(CA_R0ATT << (ringno * 4), phba->CAregaddr); | |
421 | readl(phba->CAregaddr); /* flush */ | |
422 | } | |
423 | ||
424 | static void | |
425 | lpfc_sli_resume_iocb(struct lpfc_hba * phba, struct lpfc_sli_ring * pring) | |
426 | { | |
427 | IOCB_t *iocb; | |
428 | struct lpfc_iocbq *nextiocb; | |
429 | ||
430 | /* | |
431 | * Check to see if: | |
432 | * (a) there is anything on the txq to send | |
433 | * (b) link is up | |
434 | * (c) link attention events can be processed (fcp ring only) | |
435 | * (d) IOCB processing is not blocked by the outstanding mbox command. | |
436 | */ | |
437 | if (pring->txq_cnt && | |
438 | (phba->hba_state > LPFC_LINK_DOWN) && | |
439 | (pring->ringno != phba->sli.fcp_ring || | |
440 | phba->sli.sli_flag & LPFC_PROCESS_LA) && | |
441 | !(pring->flag & LPFC_STOP_IOCB_MBX)) { | |
442 | ||
443 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && | |
444 | (nextiocb = lpfc_sli_ringtx_get(phba, pring))) | |
445 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
446 | ||
447 | if (iocb) | |
448 | lpfc_sli_update_ring(phba, pring); | |
449 | else | |
450 | lpfc_sli_update_full_ring(phba, pring); | |
451 | } | |
452 | ||
453 | return; | |
454 | } | |
455 | ||
456 | /* lpfc_sli_turn_on_ring is only called by lpfc_sli_handle_mb_event below */ | |
457 | static void | |
458 | lpfc_sli_turn_on_ring(struct lpfc_hba * phba, int ringno) | |
459 | { | |
4cc2da1d | 460 | struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[ringno]; |
dea3101e | 461 | |
462 | /* If the ring is active, flag it */ | |
463 | if (phba->sli.ring[ringno].cmdringaddr) { | |
464 | if (phba->sli.ring[ringno].flag & LPFC_STOP_IOCB_MBX) { | |
465 | phba->sli.ring[ringno].flag &= ~LPFC_STOP_IOCB_MBX; | |
466 | /* | |
467 | * Force update of the local copy of cmdGetInx | |
468 | */ | |
469 | phba->sli.ring[ringno].local_getidx | |
470 | = le32_to_cpu(pgp->cmdGetInx); | |
471 | spin_lock_irq(phba->host->host_lock); | |
472 | lpfc_sli_resume_iocb(phba, &phba->sli.ring[ringno]); | |
473 | spin_unlock_irq(phba->host->host_lock); | |
474 | } | |
475 | } | |
476 | } | |
477 | ||
478 | static int | |
479 | lpfc_sli_chk_mbx_command(uint8_t mbxCommand) | |
480 | { | |
481 | uint8_t ret; | |
482 | ||
483 | switch (mbxCommand) { | |
484 | case MBX_LOAD_SM: | |
485 | case MBX_READ_NV: | |
486 | case MBX_WRITE_NV: | |
487 | case MBX_RUN_BIU_DIAG: | |
488 | case MBX_INIT_LINK: | |
489 | case MBX_DOWN_LINK: | |
490 | case MBX_CONFIG_LINK: | |
491 | case MBX_CONFIG_RING: | |
492 | case MBX_RESET_RING: | |
493 | case MBX_READ_CONFIG: | |
494 | case MBX_READ_RCONFIG: | |
495 | case MBX_READ_SPARM: | |
496 | case MBX_READ_STATUS: | |
497 | case MBX_READ_RPI: | |
498 | case MBX_READ_XRI: | |
499 | case MBX_READ_REV: | |
500 | case MBX_READ_LNK_STAT: | |
501 | case MBX_REG_LOGIN: | |
502 | case MBX_UNREG_LOGIN: | |
503 | case MBX_READ_LA: | |
504 | case MBX_CLEAR_LA: | |
505 | case MBX_DUMP_MEMORY: | |
506 | case MBX_DUMP_CONTEXT: | |
507 | case MBX_RUN_DIAGS: | |
508 | case MBX_RESTART: | |
509 | case MBX_UPDATE_CFG: | |
510 | case MBX_DOWN_LOAD: | |
511 | case MBX_DEL_LD_ENTRY: | |
512 | case MBX_RUN_PROGRAM: | |
513 | case MBX_SET_MASK: | |
514 | case MBX_SET_SLIM: | |
515 | case MBX_UNREG_D_ID: | |
516 | case MBX_CONFIG_FARP: | |
517 | case MBX_LOAD_AREA: | |
518 | case MBX_RUN_BIU_DIAG64: | |
519 | case MBX_CONFIG_PORT: | |
520 | case MBX_READ_SPARM64: | |
521 | case MBX_READ_RPI64: | |
522 | case MBX_REG_LOGIN64: | |
523 | case MBX_READ_LA64: | |
524 | case MBX_FLASH_WR_ULA: | |
525 | case MBX_SET_DEBUG: | |
526 | case MBX_LOAD_EXP_ROM: | |
527 | ret = mbxCommand; | |
528 | break; | |
529 | default: | |
530 | ret = MBX_SHUTDOWN; | |
531 | break; | |
532 | } | |
533 | return (ret); | |
534 | } | |
535 | static void | |
536 | lpfc_sli_wake_mbox_wait(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) | |
537 | { | |
538 | wait_queue_head_t *pdone_q; | |
539 | ||
540 | /* | |
541 | * If pdone_q is empty, the driver thread gave up waiting and | |
542 | * continued running. | |
543 | */ | |
544 | pdone_q = (wait_queue_head_t *) pmboxq->context1; | |
545 | if (pdone_q) | |
546 | wake_up_interruptible(pdone_q); | |
547 | return; | |
548 | } | |
549 | ||
550 | void | |
551 | lpfc_sli_def_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) | |
552 | { | |
553 | struct lpfc_dmabuf *mp; | |
554 | mp = (struct lpfc_dmabuf *) (pmb->context1); | |
555 | if (mp) { | |
556 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
557 | kfree(mp); | |
558 | } | |
559 | mempool_free( pmb, phba->mbox_mem_pool); | |
560 | return; | |
561 | } | |
562 | ||
563 | int | |
564 | lpfc_sli_handle_mb_event(struct lpfc_hba * phba) | |
565 | { | |
566 | MAILBOX_t *mbox; | |
567 | MAILBOX_t *pmbox; | |
568 | LPFC_MBOXQ_t *pmb; | |
569 | struct lpfc_sli *psli; | |
570 | int i, rc; | |
571 | uint32_t process_next; | |
572 | ||
573 | psli = &phba->sli; | |
574 | /* We should only get here if we are in SLI2 mode */ | |
575 | if (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE)) { | |
576 | return (1); | |
577 | } | |
578 | ||
579 | phba->sli.slistat.mbox_event++; | |
580 | ||
581 | /* Get a Mailbox buffer to setup mailbox commands for callback */ | |
582 | if ((pmb = phba->sli.mbox_active)) { | |
583 | pmbox = &pmb->mb; | |
4cc2da1d | 584 | mbox = &phba->slim2p->mbx; |
dea3101e | 585 | |
586 | /* First check out the status word */ | |
587 | lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof (uint32_t)); | |
588 | ||
589 | /* Sanity check to ensure the host owns the mailbox */ | |
590 | if (pmbox->mbxOwner != OWN_HOST) { | |
591 | /* Lets try for a while */ | |
592 | for (i = 0; i < 10240; i++) { | |
593 | /* First copy command data */ | |
594 | lpfc_sli_pcimem_bcopy(mbox, pmbox, | |
595 | sizeof (uint32_t)); | |
596 | if (pmbox->mbxOwner == OWN_HOST) | |
597 | goto mbout; | |
598 | } | |
599 | /* Stray Mailbox Interrupt, mbxCommand <cmd> mbxStatus | |
600 | <status> */ | |
601 | lpfc_printf_log(phba, | |
602 | KERN_ERR, | |
603 | LOG_MBOX | LOG_SLI, | |
604 | "%d:0304 Stray Mailbox Interrupt " | |
605 | "mbxCommand x%x mbxStatus x%x\n", | |
606 | phba->brd_no, | |
607 | pmbox->mbxCommand, | |
608 | pmbox->mbxStatus); | |
609 | ||
610 | spin_lock_irq(phba->host->host_lock); | |
611 | phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE; | |
612 | spin_unlock_irq(phba->host->host_lock); | |
613 | return (1); | |
614 | } | |
615 | ||
616 | mbout: | |
617 | del_timer_sync(&phba->sli.mbox_tmo); | |
618 | phba->work_hba_events &= ~WORKER_MBOX_TMO; | |
619 | ||
620 | /* | |
621 | * It is a fatal error if unknown mbox command completion. | |
622 | */ | |
623 | if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) == | |
624 | MBX_SHUTDOWN) { | |
625 | ||
626 | /* Unknow mailbox command compl */ | |
627 | lpfc_printf_log(phba, | |
628 | KERN_ERR, | |
629 | LOG_MBOX | LOG_SLI, | |
630 | "%d:0323 Unknown Mailbox command %x Cmpl\n", | |
631 | phba->brd_no, | |
632 | pmbox->mbxCommand); | |
633 | phba->hba_state = LPFC_HBA_ERROR; | |
634 | phba->work_hs = HS_FFER3; | |
635 | lpfc_handle_eratt(phba); | |
636 | return (0); | |
637 | } | |
638 | ||
639 | phba->sli.mbox_active = NULL; | |
640 | if (pmbox->mbxStatus) { | |
641 | phba->sli.slistat.mbox_stat_err++; | |
642 | if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) { | |
643 | /* Mbox cmd cmpl error - RETRYing */ | |
644 | lpfc_printf_log(phba, | |
645 | KERN_INFO, | |
646 | LOG_MBOX | LOG_SLI, | |
647 | "%d:0305 Mbox cmd cmpl error - " | |
648 | "RETRYing Data: x%x x%x x%x x%x\n", | |
649 | phba->brd_no, | |
650 | pmbox->mbxCommand, | |
651 | pmbox->mbxStatus, | |
652 | pmbox->un.varWords[0], | |
653 | phba->hba_state); | |
654 | pmbox->mbxStatus = 0; | |
655 | pmbox->mbxOwner = OWN_HOST; | |
656 | spin_lock_irq(phba->host->host_lock); | |
657 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
658 | spin_unlock_irq(phba->host->host_lock); | |
659 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
660 | if (rc == MBX_SUCCESS) | |
661 | return (0); | |
662 | } | |
663 | } | |
664 | ||
665 | /* Mailbox cmd <cmd> Cmpl <cmpl> */ | |
666 | lpfc_printf_log(phba, | |
667 | KERN_INFO, | |
668 | LOG_MBOX | LOG_SLI, | |
669 | "%d:0307 Mailbox cmd x%x Cmpl x%p " | |
670 | "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n", | |
671 | phba->brd_no, | |
672 | pmbox->mbxCommand, | |
673 | pmb->mbox_cmpl, | |
674 | *((uint32_t *) pmbox), | |
675 | pmbox->un.varWords[0], | |
676 | pmbox->un.varWords[1], | |
677 | pmbox->un.varWords[2], | |
678 | pmbox->un.varWords[3], | |
679 | pmbox->un.varWords[4], | |
680 | pmbox->un.varWords[5], | |
681 | pmbox->un.varWords[6], | |
682 | pmbox->un.varWords[7]); | |
683 | ||
684 | if (pmb->mbox_cmpl) { | |
685 | lpfc_sli_pcimem_bcopy(mbox, pmbox, MAILBOX_CMD_SIZE); | |
686 | pmb->mbox_cmpl(phba,pmb); | |
687 | } | |
688 | } | |
689 | ||
690 | ||
691 | do { | |
692 | process_next = 0; /* by default don't loop */ | |
693 | spin_lock_irq(phba->host->host_lock); | |
694 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
695 | ||
696 | /* Process next mailbox command if there is one */ | |
697 | if ((pmb = lpfc_mbox_get(phba))) { | |
698 | spin_unlock_irq(phba->host->host_lock); | |
699 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
700 | if (rc == MBX_NOT_FINISHED) { | |
701 | pmb->mb.mbxStatus = MBX_NOT_FINISHED; | |
702 | pmb->mbox_cmpl(phba,pmb); | |
703 | process_next = 1; | |
704 | continue; /* loop back */ | |
705 | } | |
706 | } else { | |
707 | spin_unlock_irq(phba->host->host_lock); | |
708 | /* Turn on IOCB processing */ | |
709 | for (i = 0; i < phba->sli.num_rings; i++) { | |
710 | lpfc_sli_turn_on_ring(phba, i); | |
711 | } | |
712 | ||
713 | /* Free any lpfc_dmabuf's waiting for mbox cmd cmpls */ | |
714 | while (!list_empty(&phba->freebufList)) { | |
715 | struct lpfc_dmabuf *mp; | |
716 | ||
717 | mp = NULL; | |
718 | list_remove_head((&phba->freebufList), | |
719 | mp, | |
720 | struct lpfc_dmabuf, | |
721 | list); | |
722 | if (mp) { | |
723 | lpfc_mbuf_free(phba, mp->virt, | |
724 | mp->phys); | |
725 | kfree(mp); | |
726 | } | |
727 | } | |
728 | } | |
729 | ||
730 | } while (process_next); | |
731 | ||
732 | return (0); | |
733 | } | |
734 | static int | |
735 | lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
736 | struct lpfc_iocbq *saveq) | |
737 | { | |
738 | IOCB_t * irsp; | |
739 | WORD5 * w5p; | |
740 | uint32_t Rctl, Type; | |
741 | uint32_t match, i; | |
742 | ||
743 | match = 0; | |
744 | irsp = &(saveq->iocb); | |
745 | if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) | |
746 | || (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX)) { | |
747 | Rctl = FC_ELS_REQ; | |
748 | Type = FC_ELS_DATA; | |
749 | } else { | |
750 | w5p = | |
751 | (WORD5 *) & (saveq->iocb.un. | |
752 | ulpWord[5]); | |
753 | Rctl = w5p->hcsw.Rctl; | |
754 | Type = w5p->hcsw.Type; | |
755 | ||
756 | /* Firmware Workaround */ | |
757 | if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) && | |
758 | (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX)) { | |
759 | Rctl = FC_ELS_REQ; | |
760 | Type = FC_ELS_DATA; | |
761 | w5p->hcsw.Rctl = Rctl; | |
762 | w5p->hcsw.Type = Type; | |
763 | } | |
764 | } | |
765 | /* unSolicited Responses */ | |
766 | if (pring->prt[0].profile) { | |
767 | (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring, saveq); | |
768 | match = 1; | |
769 | } else { | |
770 | /* We must search, based on rctl / type | |
771 | for the right routine */ | |
772 | for (i = 0; i < pring->num_mask; | |
773 | i++) { | |
774 | if ((pring->prt[i].rctl == | |
775 | Rctl) | |
776 | && (pring->prt[i]. | |
777 | type == Type)) { | |
778 | (pring->prt[i].lpfc_sli_rcv_unsol_event) | |
779 | (phba, pring, saveq); | |
780 | match = 1; | |
781 | break; | |
782 | } | |
783 | } | |
784 | } | |
785 | if (match == 0) { | |
786 | /* Unexpected Rctl / Type received */ | |
787 | /* Ring <ringno> handler: unexpected | |
788 | Rctl <Rctl> Type <Type> received */ | |
789 | lpfc_printf_log(phba, | |
790 | KERN_WARNING, | |
791 | LOG_SLI, | |
792 | "%d:0313 Ring %d handler: unexpected Rctl x%x " | |
793 | "Type x%x received \n", | |
794 | phba->brd_no, | |
795 | pring->ringno, | |
796 | Rctl, | |
797 | Type); | |
798 | } | |
799 | return(1); | |
800 | } | |
801 | ||
802 | static struct lpfc_iocbq * | |
604a3e30 JB |
803 | lpfc_sli_iocbq_lookup(struct lpfc_hba * phba, |
804 | struct lpfc_sli_ring * pring, | |
805 | struct lpfc_iocbq * prspiocb) | |
dea3101e | 806 | { |
dea3101e | 807 | struct lpfc_iocbq *cmd_iocb = NULL; |
808 | uint16_t iotag; | |
809 | ||
604a3e30 JB |
810 | iotag = prspiocb->iocb.ulpIoTag; |
811 | ||
812 | if (iotag != 0 && iotag <= phba->sli.last_iotag) { | |
813 | cmd_iocb = phba->sli.iocbq_lookup[iotag]; | |
814 | list_del(&cmd_iocb->list); | |
815 | pring->txcmplq_cnt--; | |
816 | return cmd_iocb; | |
dea3101e | 817 | } |
818 | ||
dea3101e | 819 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
604a3e30 JB |
820 | "%d:0317 iotag x%x is out off " |
821 | "range: max iotag x%x wd0 x%x\n", | |
822 | phba->brd_no, iotag, | |
823 | phba->sli.last_iotag, | |
824 | *(((uint32_t *) &prspiocb->iocb) + 7)); | |
dea3101e | 825 | return NULL; |
826 | } | |
827 | ||
828 | static int | |
829 | lpfc_sli_process_sol_iocb(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, | |
830 | struct lpfc_iocbq *saveq) | |
831 | { | |
832 | struct lpfc_iocbq * cmdiocbp; | |
833 | int rc = 1; | |
834 | unsigned long iflag; | |
835 | ||
836 | /* Based on the iotag field, get the cmd IOCB from the txcmplq */ | |
837 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
604a3e30 | 838 | cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq); |
dea3101e | 839 | if (cmdiocbp) { |
840 | if (cmdiocbp->iocb_cmpl) { | |
841 | /* | |
842 | * Post all ELS completions to the worker thread. | |
843 | * All other are passed to the completion callback. | |
844 | */ | |
845 | if (pring->ringno == LPFC_ELS_RING) { | |
846 | spin_unlock_irqrestore(phba->host->host_lock, | |
847 | iflag); | |
848 | (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq); | |
849 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
850 | } | |
851 | else { | |
dea3101e | 852 | spin_unlock_irqrestore(phba->host->host_lock, |
853 | iflag); | |
854 | (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq); | |
855 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
856 | } | |
604a3e30 JB |
857 | } else |
858 | lpfc_sli_release_iocbq(phba, cmdiocbp); | |
dea3101e | 859 | } else { |
860 | /* | |
861 | * Unknown initiating command based on the response iotag. | |
862 | * This could be the case on the ELS ring because of | |
863 | * lpfc_els_abort(). | |
864 | */ | |
865 | if (pring->ringno != LPFC_ELS_RING) { | |
866 | /* | |
867 | * Ring <ringno> handler: unexpected completion IoTag | |
868 | * <IoTag> | |
869 | */ | |
870 | lpfc_printf_log(phba, | |
871 | KERN_WARNING, | |
872 | LOG_SLI, | |
873 | "%d:0322 Ring %d handler: unexpected " | |
874 | "completion IoTag x%x Data: x%x x%x x%x x%x\n", | |
875 | phba->brd_no, | |
876 | pring->ringno, | |
877 | saveq->iocb.ulpIoTag, | |
878 | saveq->iocb.ulpStatus, | |
879 | saveq->iocb.un.ulpWord[4], | |
880 | saveq->iocb.ulpCommand, | |
881 | saveq->iocb.ulpContext); | |
882 | } | |
883 | } | |
68876920 | 884 | |
dea3101e | 885 | spin_unlock_irqrestore(phba->host->host_lock, iflag); |
886 | return rc; | |
887 | } | |
888 | ||
889 | /* | |
890 | * This routine presumes LPFC_FCP_RING handling and doesn't bother | |
891 | * to check it explicitly. | |
892 | */ | |
893 | static int | |
894 | lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba, | |
895 | struct lpfc_sli_ring * pring, uint32_t mask) | |
896 | { | |
4cc2da1d | 897 | struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno]; |
dea3101e | 898 | IOCB_t *irsp = NULL; |
87f6eaff | 899 | IOCB_t *entry = NULL; |
dea3101e | 900 | struct lpfc_iocbq *cmdiocbq = NULL; |
901 | struct lpfc_iocbq rspiocbq; | |
dea3101e | 902 | uint32_t status; |
903 | uint32_t portRspPut, portRspMax; | |
904 | int rc = 1; | |
905 | lpfc_iocb_type type; | |
906 | unsigned long iflag; | |
907 | uint32_t rsp_cmpl = 0; | |
908 | void __iomem *to_slim; | |
909 | ||
910 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
911 | pring->stats.iocb_event++; | |
912 | ||
dea3101e | 913 | /* |
914 | * The next available response entry should never exceed the maximum | |
915 | * entries. If it does, treat it as an adapter hardware error. | |
916 | */ | |
917 | portRspMax = pring->numRiocb; | |
918 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
919 | if (unlikely(portRspPut >= portRspMax)) { | |
920 | /* | |
921 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger then | |
922 | * rsp ring <portRspMax> | |
923 | */ | |
924 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
925 | "%d:0312 Ring %d handler: portRspPut %d " | |
926 | "is bigger then rsp ring %d\n", | |
927 | phba->brd_no, pring->ringno, portRspPut, | |
928 | portRspMax); | |
929 | ||
930 | phba->hba_state = LPFC_HBA_ERROR; | |
931 | ||
932 | /* All error attention handlers are posted to worker thread */ | |
933 | phba->work_ha |= HA_ERATT; | |
934 | phba->work_hs = HS_FFER3; | |
935 | if (phba->work_wait) | |
936 | wake_up(phba->work_wait); | |
937 | ||
938 | spin_unlock_irqrestore(phba->host->host_lock, iflag); | |
939 | return 1; | |
940 | } | |
941 | ||
942 | rmb(); | |
943 | while (pring->rspidx != portRspPut) { | |
87f6eaff JSEC |
944 | /* |
945 | * Fetch an entry off the ring and copy it into a local data | |
946 | * structure. The copy involves a byte-swap since the | |
947 | * network byte order and pci byte orders are different. | |
948 | */ | |
4a0dfcde | 949 | entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx); |
87f6eaff JSEC |
950 | lpfc_sli_pcimem_bcopy((uint32_t *) entry, |
951 | (uint32_t *) &rspiocbq.iocb, | |
952 | sizeof (IOCB_t)); | |
953 | irsp = &rspiocbq.iocb; | |
954 | ||
dea3101e | 955 | type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); |
956 | pring->stats.iocb_rsp++; | |
957 | rsp_cmpl++; | |
958 | ||
959 | if (unlikely(irsp->ulpStatus)) { | |
960 | /* Rsp ring <ringno> error: IOCB */ | |
961 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
962 | "%d:0326 Rsp Ring %d error: IOCB Data: " | |
963 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", | |
964 | phba->brd_no, pring->ringno, | |
965 | irsp->un.ulpWord[0], irsp->un.ulpWord[1], | |
966 | irsp->un.ulpWord[2], irsp->un.ulpWord[3], | |
967 | irsp->un.ulpWord[4], irsp->un.ulpWord[5], | |
968 | *(((uint32_t *) irsp) + 6), | |
969 | *(((uint32_t *) irsp) + 7)); | |
970 | } | |
971 | ||
972 | switch (type) { | |
973 | case LPFC_ABORT_IOCB: | |
974 | case LPFC_SOL_IOCB: | |
975 | /* | |
976 | * Idle exchange closed via ABTS from port. No iocb | |
977 | * resources need to be recovered. | |
978 | */ | |
979 | if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { | |
980 | printk(KERN_INFO "%s: IOCB cmd 0x%x processed. " | |
981 | "Skipping completion\n", __FUNCTION__, | |
982 | irsp->ulpCommand); | |
983 | break; | |
984 | } | |
985 | ||
604a3e30 JB |
986 | cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, |
987 | &rspiocbq); | |
dea3101e | 988 | if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { |
989 | spin_unlock_irqrestore( | |
990 | phba->host->host_lock, iflag); | |
991 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, | |
992 | &rspiocbq); | |
993 | spin_lock_irqsave(phba->host->host_lock, | |
994 | iflag); | |
995 | } | |
996 | break; | |
997 | default: | |
998 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
999 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
1000 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
1001 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
1002 | MAX_MSG_DATA); | |
1003 | dev_warn(&((phba->pcidev)->dev), "lpfc%d: %s", | |
1004 | phba->brd_no, adaptermsg); | |
1005 | } else { | |
1006 | /* Unknown IOCB command */ | |
1007 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
1008 | "%d:0321 Unknown IOCB command " | |
1009 | "Data: x%x, x%x x%x x%x x%x\n", | |
1010 | phba->brd_no, type, irsp->ulpCommand, | |
1011 | irsp->ulpStatus, irsp->ulpIoTag, | |
1012 | irsp->ulpContext); | |
1013 | } | |
1014 | break; | |
1015 | } | |
1016 | ||
1017 | /* | |
1018 | * The response IOCB has been processed. Update the ring | |
1019 | * pointer in SLIM. If the port response put pointer has not | |
1020 | * been updated, sync the pgp->rspPutInx and fetch the new port | |
1021 | * response put pointer. | |
1022 | */ | |
1023 | if (++pring->rspidx >= portRspMax) | |
1024 | pring->rspidx = 0; | |
1025 | ||
1026 | to_slim = phba->MBslimaddr + | |
1027 | (SLIMOFF + (pring->ringno * 2) + 1) * 4; | |
f91b392c | 1028 | writel(pring->rspidx, to_slim); |
dea3101e | 1029 | |
1030 | if (pring->rspidx == portRspPut) | |
1031 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1032 | } | |
1033 | ||
1034 | if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) { | |
1035 | pring->stats.iocb_rsp_full++; | |
1036 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
1037 | writel(status, phba->CAregaddr); | |
1038 | readl(phba->CAregaddr); | |
1039 | } | |
1040 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
1041 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
1042 | pring->stats.iocb_cmd_empty++; | |
1043 | ||
1044 | /* Force update of the local copy of cmdGetInx */ | |
1045 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
1046 | lpfc_sli_resume_iocb(phba, pring); | |
1047 | ||
1048 | if ((pring->lpfc_sli_cmd_available)) | |
1049 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
1050 | ||
1051 | } | |
1052 | ||
1053 | spin_unlock_irqrestore(phba->host->host_lock, iflag); | |
1054 | return rc; | |
1055 | } | |
1056 | ||
1057 | ||
1058 | int | |
1059 | lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba, | |
1060 | struct lpfc_sli_ring * pring, uint32_t mask) | |
1061 | { | |
1062 | IOCB_t *entry; | |
1063 | IOCB_t *irsp = NULL; | |
1064 | struct lpfc_iocbq *rspiocbp = NULL; | |
1065 | struct lpfc_iocbq *next_iocb; | |
1066 | struct lpfc_iocbq *cmdiocbp; | |
1067 | struct lpfc_iocbq *saveq; | |
4cc2da1d | 1068 | struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno]; |
dea3101e | 1069 | uint8_t iocb_cmd_type; |
1070 | lpfc_iocb_type type; | |
1071 | uint32_t status, free_saveq; | |
1072 | uint32_t portRspPut, portRspMax; | |
1073 | int rc = 1; | |
1074 | unsigned long iflag; | |
1075 | void __iomem *to_slim; | |
1076 | ||
1077 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
1078 | pring->stats.iocb_event++; | |
1079 | ||
dea3101e | 1080 | /* |
1081 | * The next available response entry should never exceed the maximum | |
1082 | * entries. If it does, treat it as an adapter hardware error. | |
1083 | */ | |
1084 | portRspMax = pring->numRiocb; | |
1085 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1086 | if (portRspPut >= portRspMax) { | |
1087 | /* | |
1088 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger then | |
1089 | * rsp ring <portRspMax> | |
1090 | */ | |
1091 | lpfc_printf_log(phba, | |
1092 | KERN_ERR, | |
1093 | LOG_SLI, | |
1094 | "%d:0312 Ring %d handler: portRspPut %d " | |
1095 | "is bigger then rsp ring %d\n", | |
1096 | phba->brd_no, | |
1097 | pring->ringno, portRspPut, portRspMax); | |
1098 | ||
1099 | phba->hba_state = LPFC_HBA_ERROR; | |
1100 | spin_unlock_irqrestore(phba->host->host_lock, iflag); | |
1101 | ||
1102 | phba->work_hs = HS_FFER3; | |
1103 | lpfc_handle_eratt(phba); | |
1104 | ||
1105 | return 1; | |
1106 | } | |
1107 | ||
1108 | rmb(); | |
dea3101e | 1109 | while (pring->rspidx != portRspPut) { |
1110 | /* | |
1111 | * Build a completion list and call the appropriate handler. | |
1112 | * The process is to get the next available response iocb, get | |
1113 | * a free iocb from the list, copy the response data into the | |
1114 | * free iocb, insert to the continuation list, and update the | |
1115 | * next response index to slim. This process makes response | |
1116 | * iocb's in the ring available to DMA as fast as possible but | |
1117 | * pays a penalty for a copy operation. Since the iocb is | |
1118 | * only 32 bytes, this penalty is considered small relative to | |
1119 | * the PCI reads for register values and a slim write. When | |
1120 | * the ulpLe field is set, the entire Command has been | |
1121 | * received. | |
1122 | */ | |
1123 | entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx); | |
0bd4ca25 | 1124 | rspiocbp = lpfc_sli_get_iocbq(phba); |
dea3101e | 1125 | if (rspiocbp == NULL) { |
1126 | printk(KERN_ERR "%s: out of buffers! Failing " | |
1127 | "completion.\n", __FUNCTION__); | |
1128 | break; | |
1129 | } | |
1130 | ||
1131 | lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb, sizeof (IOCB_t)); | |
1132 | irsp = &rspiocbp->iocb; | |
1133 | ||
1134 | if (++pring->rspidx >= portRspMax) | |
1135 | pring->rspidx = 0; | |
1136 | ||
1137 | to_slim = phba->MBslimaddr + (SLIMOFF + (pring->ringno * 2) | |
1138 | + 1) * 4; | |
f91b392c | 1139 | writel(pring->rspidx, to_slim); |
dea3101e | 1140 | |
1141 | if (list_empty(&(pring->iocb_continueq))) { | |
1142 | list_add(&rspiocbp->list, &(pring->iocb_continueq)); | |
1143 | } else { | |
1144 | list_add_tail(&rspiocbp->list, | |
1145 | &(pring->iocb_continueq)); | |
1146 | } | |
1147 | ||
1148 | pring->iocb_continueq_cnt++; | |
1149 | if (irsp->ulpLe) { | |
1150 | /* | |
1151 | * By default, the driver expects to free all resources | |
1152 | * associated with this iocb completion. | |
1153 | */ | |
1154 | free_saveq = 1; | |
1155 | saveq = list_get_first(&pring->iocb_continueq, | |
1156 | struct lpfc_iocbq, list); | |
1157 | irsp = &(saveq->iocb); | |
1158 | list_del_init(&pring->iocb_continueq); | |
1159 | pring->iocb_continueq_cnt = 0; | |
1160 | ||
1161 | pring->stats.iocb_rsp++; | |
1162 | ||
1163 | if (irsp->ulpStatus) { | |
1164 | /* Rsp ring <ringno> error: IOCB */ | |
1165 | lpfc_printf_log(phba, | |
1166 | KERN_WARNING, | |
1167 | LOG_SLI, | |
1168 | "%d:0328 Rsp Ring %d error: IOCB Data: " | |
1169 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", | |
1170 | phba->brd_no, | |
1171 | pring->ringno, | |
1172 | irsp->un.ulpWord[0], | |
1173 | irsp->un.ulpWord[1], | |
1174 | irsp->un.ulpWord[2], | |
1175 | irsp->un.ulpWord[3], | |
1176 | irsp->un.ulpWord[4], | |
1177 | irsp->un.ulpWord[5], | |
1178 | *(((uint32_t *) irsp) + 6), | |
1179 | *(((uint32_t *) irsp) + 7)); | |
1180 | } | |
1181 | ||
1182 | /* | |
1183 | * Fetch the IOCB command type and call the correct | |
1184 | * completion routine. Solicited and Unsolicited | |
1185 | * IOCBs on the ELS ring get freed back to the | |
1186 | * lpfc_iocb_list by the discovery kernel thread. | |
1187 | */ | |
1188 | iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK; | |
1189 | type = lpfc_sli_iocb_cmd_type(iocb_cmd_type); | |
1190 | if (type == LPFC_SOL_IOCB) { | |
1191 | spin_unlock_irqrestore(phba->host->host_lock, | |
1192 | iflag); | |
1193 | rc = lpfc_sli_process_sol_iocb(phba, pring, | |
1194 | saveq); | |
1195 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
1196 | } else if (type == LPFC_UNSOL_IOCB) { | |
1197 | spin_unlock_irqrestore(phba->host->host_lock, | |
1198 | iflag); | |
1199 | rc = lpfc_sli_process_unsol_iocb(phba, pring, | |
1200 | saveq); | |
1201 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
1202 | } else if (type == LPFC_ABORT_IOCB) { | |
1203 | if ((irsp->ulpCommand != CMD_XRI_ABORTED_CX) && | |
1204 | ((cmdiocbp = | |
604a3e30 JB |
1205 | lpfc_sli_iocbq_lookup(phba, pring, |
1206 | saveq)))) { | |
dea3101e | 1207 | /* Call the specified completion |
1208 | routine */ | |
1209 | if (cmdiocbp->iocb_cmpl) { | |
1210 | spin_unlock_irqrestore( | |
1211 | phba->host->host_lock, | |
1212 | iflag); | |
1213 | (cmdiocbp->iocb_cmpl) (phba, | |
1214 | cmdiocbp, saveq); | |
1215 | spin_lock_irqsave( | |
1216 | phba->host->host_lock, | |
1217 | iflag); | |
604a3e30 JB |
1218 | } else |
1219 | lpfc_sli_release_iocbq(phba, | |
1220 | cmdiocbp); | |
dea3101e | 1221 | } |
1222 | } else if (type == LPFC_UNKNOWN_IOCB) { | |
1223 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
1224 | ||
1225 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
1226 | ||
1227 | memset(adaptermsg, 0, | |
1228 | LPFC_MAX_ADPTMSG); | |
1229 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
1230 | MAX_MSG_DATA); | |
1231 | dev_warn(&((phba->pcidev)->dev), | |
1232 | "lpfc%d: %s", | |
1233 | phba->brd_no, adaptermsg); | |
1234 | } else { | |
1235 | /* Unknown IOCB command */ | |
1236 | lpfc_printf_log(phba, | |
1237 | KERN_ERR, | |
1238 | LOG_SLI, | |
1239 | "%d:0321 Unknown IOCB command " | |
1240 | "Data: x%x x%x x%x x%x\n", | |
1241 | phba->brd_no, | |
1242 | irsp->ulpCommand, | |
1243 | irsp->ulpStatus, | |
1244 | irsp->ulpIoTag, | |
1245 | irsp->ulpContext); | |
1246 | } | |
1247 | } | |
1248 | ||
1249 | if (free_saveq) { | |
1250 | if (!list_empty(&saveq->list)) { | |
1251 | list_for_each_entry_safe(rspiocbp, | |
1252 | next_iocb, | |
1253 | &saveq->list, | |
1254 | list) { | |
604a3e30 JB |
1255 | lpfc_sli_release_iocbq(phba, |
1256 | rspiocbp); | |
dea3101e | 1257 | } |
1258 | } | |
1259 | ||
604a3e30 | 1260 | lpfc_sli_release_iocbq(phba, saveq); |
dea3101e | 1261 | } |
1262 | } | |
1263 | ||
1264 | /* | |
1265 | * If the port response put pointer has not been updated, sync | |
1266 | * the pgp->rspPutInx in the MAILBOX_tand fetch the new port | |
1267 | * response put pointer. | |
1268 | */ | |
1269 | if (pring->rspidx == portRspPut) { | |
1270 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1271 | } | |
1272 | } /* while (pring->rspidx != portRspPut) */ | |
1273 | ||
1274 | if ((rspiocbp != 0) && (mask & HA_R0RE_REQ)) { | |
1275 | /* At least one response entry has been freed */ | |
1276 | pring->stats.iocb_rsp_full++; | |
1277 | /* SET RxRE_RSP in Chip Att register */ | |
1278 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
1279 | writel(status, phba->CAregaddr); | |
1280 | readl(phba->CAregaddr); /* flush */ | |
1281 | } | |
1282 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
1283 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
1284 | pring->stats.iocb_cmd_empty++; | |
1285 | ||
1286 | /* Force update of the local copy of cmdGetInx */ | |
1287 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
1288 | lpfc_sli_resume_iocb(phba, pring); | |
1289 | ||
1290 | if ((pring->lpfc_sli_cmd_available)) | |
1291 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
1292 | ||
1293 | } | |
1294 | ||
1295 | spin_unlock_irqrestore(phba->host->host_lock, iflag); | |
1296 | return rc; | |
1297 | } | |
1298 | ||
1299 | int | |
1300 | lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
1301 | { | |
1302 | struct lpfc_iocbq *iocb, *next_iocb; | |
1303 | IOCB_t *icmd = NULL, *cmd = NULL; | |
1304 | int errcnt; | |
dea3101e | 1305 | |
1306 | errcnt = 0; | |
1307 | ||
1308 | /* Error everything on txq and txcmplq | |
1309 | * First do the txq. | |
1310 | */ | |
1311 | spin_lock_irq(phba->host->host_lock); | |
1312 | list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { | |
1313 | list_del_init(&iocb->list); | |
1314 | if (iocb->iocb_cmpl) { | |
1315 | icmd = &iocb->iocb; | |
1316 | icmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
1317 | icmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
1318 | spin_unlock_irq(phba->host->host_lock); | |
1319 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
1320 | spin_lock_irq(phba->host->host_lock); | |
604a3e30 JB |
1321 | } else |
1322 | lpfc_sli_release_iocbq(phba, iocb); | |
dea3101e | 1323 | } |
1324 | pring->txq_cnt = 0; | |
1325 | INIT_LIST_HEAD(&(pring->txq)); | |
1326 | ||
1327 | /* Next issue ABTS for everything on the txcmplq */ | |
1328 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { | |
1329 | cmd = &iocb->iocb; | |
1330 | ||
1331 | /* | |
604a3e30 | 1332 | * Imediate abort of IOCB, deque and call compl |
dea3101e | 1333 | */ |
dea3101e | 1334 | |
1335 | list_del_init(&iocb->list); | |
1336 | pring->txcmplq_cnt--; | |
1337 | ||
1338 | if (iocb->iocb_cmpl) { | |
1339 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
1340 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
1341 | spin_unlock_irq(phba->host->host_lock); | |
1342 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
1343 | spin_lock_irq(phba->host->host_lock); | |
604a3e30 JB |
1344 | } else |
1345 | lpfc_sli_release_iocbq(phba, iocb); | |
dea3101e | 1346 | } |
1347 | ||
1348 | INIT_LIST_HEAD(&pring->txcmplq); | |
1349 | pring->txcmplq_cnt = 0; | |
1350 | spin_unlock_irq(phba->host->host_lock); | |
1351 | ||
1352 | return errcnt; | |
1353 | } | |
1354 | ||
1355 | /****************************************************************************** | |
1356 | * lpfc_sli_send_reset | |
1357 | * | |
1358 | * Note: After returning from this function, the HBA cannot be accessed for | |
1359 | * 1 ms. Since we do not wish to delay in interrupt context, it is the | |
1360 | * responsibility of the caller to perform the mdelay(1) and flush via readl(). | |
1361 | ******************************************************************************/ | |
1362 | static int | |
1363 | lpfc_sli_send_reset(struct lpfc_hba * phba, uint16_t skip_post) | |
1364 | { | |
1365 | MAILBOX_t *swpmb; | |
1366 | volatile uint32_t word0; | |
1367 | void __iomem *to_slim; | |
1368 | unsigned long flags = 0; | |
1369 | ||
1370 | spin_lock_irqsave(phba->host->host_lock, flags); | |
1371 | ||
1372 | /* A board reset must use REAL SLIM. */ | |
1373 | phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE; | |
1374 | ||
1375 | word0 = 0; | |
1376 | swpmb = (MAILBOX_t *) & word0; | |
1377 | swpmb->mbxCommand = MBX_RESTART; | |
1378 | swpmb->mbxHc = 1; | |
1379 | ||
1380 | to_slim = phba->MBslimaddr; | |
1381 | writel(*(uint32_t *) swpmb, to_slim); | |
1382 | readl(to_slim); /* flush */ | |
1383 | ||
1384 | /* Only skip post after fc_ffinit is completed */ | |
1385 | if (skip_post) { | |
1386 | word0 = 1; /* This is really setting up word1 */ | |
1387 | } else { | |
1388 | word0 = 0; /* This is really setting up word1 */ | |
1389 | } | |
1390 | to_slim = phba->MBslimaddr + sizeof (uint32_t); | |
1391 | writel(*(uint32_t *) swpmb, to_slim); | |
1392 | readl(to_slim); /* flush */ | |
1393 | ||
1394 | /* Turn off parity checking and serr during the physical reset */ | |
1395 | pci_read_config_word(phba->pcidev, PCI_COMMAND, &phba->pci_cfg_value); | |
1396 | pci_write_config_word(phba->pcidev, PCI_COMMAND, | |
1397 | (phba->pci_cfg_value & | |
1398 | ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR))); | |
1399 | ||
1400 | writel(HC_INITFF, phba->HCregaddr); | |
1401 | ||
1402 | phba->hba_state = LPFC_INIT_START; | |
1403 | spin_unlock_irqrestore(phba->host->host_lock, flags); | |
1404 | ||
1405 | return 0; | |
1406 | } | |
1407 | ||
1408 | static int | |
1409 | lpfc_sli_brdreset(struct lpfc_hba * phba, uint16_t skip_post) | |
1410 | { | |
1411 | struct lpfc_sli_ring *pring; | |
1412 | int i; | |
1413 | struct lpfc_dmabuf *mp, *next_mp; | |
1414 | unsigned long flags = 0; | |
1415 | ||
1416 | lpfc_sli_send_reset(phba, skip_post); | |
1417 | mdelay(1); | |
1418 | ||
1419 | spin_lock_irqsave(phba->host->host_lock, flags); | |
1420 | /* Risk the write on flush case ie no delay after the readl */ | |
1421 | readl(phba->HCregaddr); /* flush */ | |
1422 | /* Now toggle INITFF bit set by lpfc_sli_send_reset */ | |
1423 | writel(0, phba->HCregaddr); | |
1424 | readl(phba->HCregaddr); /* flush */ | |
1425 | ||
1426 | /* Restore PCI cmd register */ | |
1427 | pci_write_config_word(phba->pcidev, PCI_COMMAND, phba->pci_cfg_value); | |
1428 | ||
1429 | /* perform board reset */ | |
1430 | phba->fc_eventTag = 0; | |
1431 | phba->fc_myDID = 0; | |
1432 | phba->fc_prevDID = Mask_DID; | |
1433 | ||
1434 | /* Reset HBA */ | |
1435 | lpfc_printf_log(phba, | |
1436 | KERN_INFO, | |
1437 | LOG_SLI, | |
1438 | "%d:0325 Reset HBA Data: x%x x%x x%x\n", | |
1439 | phba->brd_no, | |
1440 | phba->hba_state, | |
1441 | phba->sli.sli_flag, | |
1442 | skip_post); | |
1443 | ||
1444 | /* Initialize relevant SLI info */ | |
1445 | for (i = 0; i < phba->sli.num_rings; i++) { | |
1446 | pring = &phba->sli.ring[i]; | |
1447 | pring->flag = 0; | |
1448 | pring->rspidx = 0; | |
1449 | pring->next_cmdidx = 0; | |
1450 | pring->local_getidx = 0; | |
1451 | pring->cmdidx = 0; | |
1452 | pring->missbufcnt = 0; | |
1453 | } | |
1454 | spin_unlock_irqrestore(phba->host->host_lock, flags); | |
1455 | ||
1456 | if (skip_post) { | |
1457 | mdelay(100); | |
1458 | } else { | |
1459 | mdelay(2000); | |
1460 | } | |
1461 | ||
1462 | spin_lock_irqsave(phba->host->host_lock, flags); | |
1463 | /* Cleanup preposted buffers on the ELS ring */ | |
1464 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
1465 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { | |
1466 | list_del(&mp->list); | |
1467 | pring->postbufq_cnt--; | |
1468 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
1469 | kfree(mp); | |
1470 | } | |
1471 | spin_unlock_irqrestore(phba->host->host_lock, flags); | |
1472 | ||
1473 | for (i = 0; i < phba->sli.num_rings; i++) | |
1474 | lpfc_sli_abort_iocb_ring(phba, &phba->sli.ring[i]); | |
1475 | ||
1476 | return 0; | |
1477 | } | |
1478 | ||
1479 | static int | |
1480 | lpfc_sli_chipset_init(struct lpfc_hba *phba) | |
1481 | { | |
1482 | uint32_t status, i = 0; | |
1483 | ||
1484 | /* Read the HBA Host Status Register */ | |
1485 | status = readl(phba->HSregaddr); | |
1486 | ||
1487 | /* Check status register to see what current state is */ | |
1488 | i = 0; | |
1489 | while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) { | |
1490 | ||
1491 | /* Check every 100ms for 5 retries, then every 500ms for 5, then | |
1492 | * every 2.5 sec for 5, then reset board and every 2.5 sec for | |
1493 | * 4. | |
1494 | */ | |
1495 | if (i++ >= 20) { | |
1496 | /* Adapter failed to init, timeout, status reg | |
1497 | <status> */ | |
1498 | lpfc_printf_log(phba, | |
1499 | KERN_ERR, | |
1500 | LOG_INIT, | |
1501 | "%d:0436 Adapter failed to init, " | |
1502 | "timeout, status reg x%x\n", | |
1503 | phba->brd_no, | |
1504 | status); | |
1505 | phba->hba_state = LPFC_HBA_ERROR; | |
1506 | return -ETIMEDOUT; | |
1507 | } | |
1508 | ||
1509 | /* Check to see if any errors occurred during init */ | |
1510 | if (status & HS_FFERM) { | |
1511 | /* ERROR: During chipset initialization */ | |
1512 | /* Adapter failed to init, chipset, status reg | |
1513 | <status> */ | |
1514 | lpfc_printf_log(phba, | |
1515 | KERN_ERR, | |
1516 | LOG_INIT, | |
1517 | "%d:0437 Adapter failed to init, " | |
1518 | "chipset, status reg x%x\n", | |
1519 | phba->brd_no, | |
1520 | status); | |
1521 | phba->hba_state = LPFC_HBA_ERROR; | |
1522 | return -EIO; | |
1523 | } | |
1524 | ||
1525 | if (i <= 5) { | |
1526 | msleep(10); | |
1527 | } else if (i <= 10) { | |
1528 | msleep(500); | |
1529 | } else { | |
1530 | msleep(2500); | |
1531 | } | |
1532 | ||
1533 | if (i == 15) { | |
1534 | lpfc_sli_brdreset(phba, 0); | |
1535 | } | |
1536 | /* Read the HBA Host Status Register */ | |
1537 | status = readl(phba->HSregaddr); | |
1538 | } | |
1539 | ||
1540 | /* Check to see if any errors occurred during init */ | |
1541 | if (status & HS_FFERM) { | |
1542 | /* ERROR: During chipset initialization */ | |
1543 | /* Adapter failed to init, chipset, status reg <status> */ | |
1544 | lpfc_printf_log(phba, | |
1545 | KERN_ERR, | |
1546 | LOG_INIT, | |
1547 | "%d:0438 Adapter failed to init, chipset, " | |
1548 | "status reg x%x\n", | |
1549 | phba->brd_no, | |
1550 | status); | |
1551 | phba->hba_state = LPFC_HBA_ERROR; | |
1552 | return -EIO; | |
1553 | } | |
1554 | ||
1555 | /* Clear all interrupt enable conditions */ | |
1556 | writel(0, phba->HCregaddr); | |
1557 | readl(phba->HCregaddr); /* flush */ | |
1558 | ||
1559 | /* setup host attn register */ | |
1560 | writel(0xffffffff, phba->HAregaddr); | |
1561 | readl(phba->HAregaddr); /* flush */ | |
1562 | return 0; | |
1563 | } | |
1564 | ||
1565 | int | |
1566 | lpfc_sli_hba_setup(struct lpfc_hba * phba) | |
1567 | { | |
1568 | LPFC_MBOXQ_t *pmb; | |
1569 | uint32_t resetcount = 0, rc = 0, done = 0; | |
1570 | ||
1571 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
1572 | if (!pmb) { | |
1573 | phba->hba_state = LPFC_HBA_ERROR; | |
1574 | return -ENOMEM; | |
1575 | } | |
1576 | ||
1577 | while (resetcount < 2 && !done) { | |
1578 | phba->hba_state = 0; | |
1579 | lpfc_sli_brdreset(phba, 0); | |
1580 | msleep(2500); | |
1581 | rc = lpfc_sli_chipset_init(phba); | |
1582 | if (rc) | |
1583 | break; | |
1584 | ||
1585 | resetcount++; | |
1586 | ||
1587 | /* Call pre CONFIG_PORT mailbox command initialization. A value of 0 | |
1588 | * means the call was successful. Any other nonzero value is a failure, | |
1589 | * but if ERESTART is returned, the driver may reset the HBA and try | |
1590 | * again. | |
1591 | */ | |
1592 | rc = lpfc_config_port_prep(phba); | |
1593 | if (rc == -ERESTART) { | |
1594 | phba->hba_state = 0; | |
1595 | continue; | |
1596 | } else if (rc) { | |
1597 | break; | |
1598 | } | |
1599 | ||
1600 | phba->hba_state = LPFC_INIT_MBX_CMDS; | |
1601 | lpfc_config_port(phba, pmb); | |
1602 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
1603 | if (rc == MBX_SUCCESS) | |
1604 | done = 1; | |
1605 | else { | |
1606 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1607 | "%d:0442 Adapter failed to init, mbxCmd x%x " | |
1608 | "CONFIG_PORT, mbxStatus x%x Data: x%x\n", | |
1609 | phba->brd_no, pmb->mb.mbxCommand, | |
1610 | pmb->mb.mbxStatus, 0); | |
1611 | phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE; | |
1612 | } | |
1613 | } | |
1614 | if (!done) | |
1615 | goto lpfc_sli_hba_setup_error; | |
1616 | ||
1617 | rc = lpfc_sli_ring_map(phba, pmb); | |
1618 | ||
1619 | if (rc) | |
1620 | goto lpfc_sli_hba_setup_error; | |
1621 | ||
1622 | phba->sli.sli_flag |= LPFC_PROCESS_LA; | |
1623 | ||
1624 | rc = lpfc_config_port_post(phba); | |
1625 | if (rc) | |
1626 | goto lpfc_sli_hba_setup_error; | |
1627 | ||
1628 | goto lpfc_sli_hba_setup_exit; | |
1629 | lpfc_sli_hba_setup_error: | |
1630 | phba->hba_state = LPFC_HBA_ERROR; | |
1631 | lpfc_sli_hba_setup_exit: | |
1632 | mempool_free(pmb, phba->mbox_mem_pool); | |
1633 | return rc; | |
1634 | } | |
1635 | ||
1636 | static void | |
1637 | lpfc_mbox_abort(struct lpfc_hba * phba) | |
1638 | { | |
1639 | LPFC_MBOXQ_t *pmbox; | |
1640 | MAILBOX_t *mb; | |
1641 | ||
1642 | if (phba->sli.mbox_active) { | |
1643 | del_timer_sync(&phba->sli.mbox_tmo); | |
1644 | phba->work_hba_events &= ~WORKER_MBOX_TMO; | |
1645 | pmbox = phba->sli.mbox_active; | |
1646 | mb = &pmbox->mb; | |
1647 | phba->sli.mbox_active = NULL; | |
1648 | if (pmbox->mbox_cmpl) { | |
1649 | mb->mbxStatus = MBX_NOT_FINISHED; | |
1650 | (pmbox->mbox_cmpl) (phba, pmbox); | |
1651 | } | |
1652 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
1653 | } | |
1654 | ||
1655 | /* Abort all the non active mailbox commands. */ | |
1656 | spin_lock_irq(phba->host->host_lock); | |
1657 | pmbox = lpfc_mbox_get(phba); | |
1658 | while (pmbox) { | |
1659 | mb = &pmbox->mb; | |
1660 | if (pmbox->mbox_cmpl) { | |
1661 | mb->mbxStatus = MBX_NOT_FINISHED; | |
1662 | spin_unlock_irq(phba->host->host_lock); | |
1663 | (pmbox->mbox_cmpl) (phba, pmbox); | |
1664 | spin_lock_irq(phba->host->host_lock); | |
1665 | } | |
1666 | pmbox = lpfc_mbox_get(phba); | |
1667 | } | |
1668 | spin_unlock_irq(phba->host->host_lock); | |
1669 | return; | |
1670 | } | |
1671 | ||
1672 | /*! lpfc_mbox_timeout | |
1673 | * | |
1674 | * \pre | |
1675 | * \post | |
1676 | * \param hba Pointer to per struct lpfc_hba structure | |
1677 | * \param l1 Pointer to the driver's mailbox queue. | |
1678 | * \return | |
1679 | * void | |
1680 | * | |
1681 | * \b Description: | |
1682 | * | |
1683 | * This routine handles mailbox timeout events at timer interrupt context. | |
1684 | */ | |
1685 | void | |
1686 | lpfc_mbox_timeout(unsigned long ptr) | |
1687 | { | |
1688 | struct lpfc_hba *phba; | |
1689 | unsigned long iflag; | |
1690 | ||
1691 | phba = (struct lpfc_hba *)ptr; | |
1692 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
1693 | if (!(phba->work_hba_events & WORKER_MBOX_TMO)) { | |
1694 | phba->work_hba_events |= WORKER_MBOX_TMO; | |
1695 | if (phba->work_wait) | |
1696 | wake_up(phba->work_wait); | |
1697 | } | |
1698 | spin_unlock_irqrestore(phba->host->host_lock, iflag); | |
1699 | } | |
1700 | ||
1701 | void | |
1702 | lpfc_mbox_timeout_handler(struct lpfc_hba *phba) | |
1703 | { | |
1704 | LPFC_MBOXQ_t *pmbox; | |
1705 | MAILBOX_t *mb; | |
1706 | ||
1707 | spin_lock_irq(phba->host->host_lock); | |
1708 | if (!(phba->work_hba_events & WORKER_MBOX_TMO)) { | |
1709 | spin_unlock_irq(phba->host->host_lock); | |
1710 | return; | |
1711 | } | |
1712 | ||
db468d10 JSEC |
1713 | phba->work_hba_events &= ~WORKER_MBOX_TMO; |
1714 | ||
dea3101e | 1715 | pmbox = phba->sli.mbox_active; |
1716 | mb = &pmbox->mb; | |
1717 | ||
1718 | /* Mbox cmd <mbxCommand> timeout */ | |
1719 | lpfc_printf_log(phba, | |
1720 | KERN_ERR, | |
1721 | LOG_MBOX | LOG_SLI, | |
1722 | "%d:0310 Mailbox command x%x timeout Data: x%x x%x x%p\n", | |
1723 | phba->brd_no, | |
1724 | mb->mbxCommand, | |
1725 | phba->hba_state, | |
1726 | phba->sli.sli_flag, | |
1727 | phba->sli.mbox_active); | |
1728 | ||
db468d10 JSEC |
1729 | phba->sli.mbox_active = NULL; |
1730 | if (pmbox->mbox_cmpl) { | |
1731 | mb->mbxStatus = MBX_NOT_FINISHED; | |
1732 | spin_unlock_irq(phba->host->host_lock); | |
1733 | (pmbox->mbox_cmpl) (phba, pmbox); | |
1734 | spin_lock_irq(phba->host->host_lock); | |
dea3101e | 1735 | } |
db468d10 | 1736 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
dea3101e | 1737 | |
1738 | spin_unlock_irq(phba->host->host_lock); | |
1739 | lpfc_mbox_abort(phba); | |
1740 | return; | |
1741 | } | |
1742 | ||
1743 | int | |
1744 | lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag) | |
1745 | { | |
dea3101e | 1746 | MAILBOX_t *mb; |
1747 | struct lpfc_sli *psli; | |
1748 | uint32_t status, evtctr; | |
1749 | uint32_t ha_copy; | |
1750 | int i; | |
1751 | unsigned long drvr_flag = 0; | |
1752 | volatile uint32_t word0, ldata; | |
1753 | void __iomem *to_slim; | |
1754 | ||
1755 | psli = &phba->sli; | |
1756 | ||
1757 | spin_lock_irqsave(phba->host->host_lock, drvr_flag); | |
1758 | ||
1759 | ||
1760 | mb = &pmbox->mb; | |
1761 | status = MBX_SUCCESS; | |
1762 | ||
1763 | if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { | |
1764 | /* Polling for a mbox command when another one is already active | |
1765 | * is not allowed in SLI. Also, the driver must have established | |
1766 | * SLI2 mode to queue and process multiple mbox commands. | |
1767 | */ | |
1768 | ||
1769 | if (flag & MBX_POLL) { | |
1770 | spin_unlock_irqrestore(phba->host->host_lock, | |
1771 | drvr_flag); | |
1772 | ||
1773 | /* Mbox command <mbxCommand> cannot issue */ | |
1774 | LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag) | |
1775 | return (MBX_NOT_FINISHED); | |
1776 | } | |
1777 | ||
1778 | if (!(psli->sli_flag & LPFC_SLI2_ACTIVE)) { | |
1779 | spin_unlock_irqrestore(phba->host->host_lock, | |
1780 | drvr_flag); | |
1781 | /* Mbox command <mbxCommand> cannot issue */ | |
1782 | LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag) | |
1783 | return (MBX_NOT_FINISHED); | |
1784 | } | |
1785 | ||
1786 | /* Handle STOP IOCB processing flag. This is only meaningful | |
1787 | * if we are not polling for mbox completion. | |
1788 | */ | |
1789 | if (flag & MBX_STOP_IOCB) { | |
1790 | flag &= ~MBX_STOP_IOCB; | |
1791 | /* Now flag each ring */ | |
1792 | for (i = 0; i < psli->num_rings; i++) { | |
1793 | /* If the ring is active, flag it */ | |
1794 | if (psli->ring[i].cmdringaddr) { | |
1795 | psli->ring[i].flag |= | |
1796 | LPFC_STOP_IOCB_MBX; | |
1797 | } | |
1798 | } | |
1799 | } | |
1800 | ||
1801 | /* Another mailbox command is still being processed, queue this | |
1802 | * command to be processed later. | |
1803 | */ | |
1804 | lpfc_mbox_put(phba, pmbox); | |
1805 | ||
1806 | /* Mbox cmd issue - BUSY */ | |
1807 | lpfc_printf_log(phba, | |
1808 | KERN_INFO, | |
1809 | LOG_MBOX | LOG_SLI, | |
1810 | "%d:0308 Mbox cmd issue - BUSY Data: x%x x%x x%x x%x\n", | |
1811 | phba->brd_no, | |
1812 | mb->mbxCommand, | |
1813 | phba->hba_state, | |
1814 | psli->sli_flag, | |
1815 | flag); | |
1816 | ||
1817 | psli->slistat.mbox_busy++; | |
1818 | spin_unlock_irqrestore(phba->host->host_lock, | |
1819 | drvr_flag); | |
1820 | ||
1821 | return (MBX_BUSY); | |
1822 | } | |
1823 | ||
1824 | /* Handle STOP IOCB processing flag. This is only meaningful | |
1825 | * if we are not polling for mbox completion. | |
1826 | */ | |
1827 | if (flag & MBX_STOP_IOCB) { | |
1828 | flag &= ~MBX_STOP_IOCB; | |
1829 | if (flag == MBX_NOWAIT) { | |
1830 | /* Now flag each ring */ | |
1831 | for (i = 0; i < psli->num_rings; i++) { | |
1832 | /* If the ring is active, flag it */ | |
1833 | if (psli->ring[i].cmdringaddr) { | |
1834 | psli->ring[i].flag |= | |
1835 | LPFC_STOP_IOCB_MBX; | |
1836 | } | |
1837 | } | |
1838 | } | |
1839 | } | |
1840 | ||
1841 | psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; | |
1842 | ||
1843 | /* If we are not polling, we MUST be in SLI2 mode */ | |
1844 | if (flag != MBX_POLL) { | |
1845 | if (!(psli->sli_flag & LPFC_SLI2_ACTIVE)) { | |
1846 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
1847 | spin_unlock_irqrestore(phba->host->host_lock, | |
1848 | drvr_flag); | |
1849 | /* Mbox command <mbxCommand> cannot issue */ | |
1850 | LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag); | |
1851 | return (MBX_NOT_FINISHED); | |
1852 | } | |
1853 | /* timeout active mbox command */ | |
1854 | mod_timer(&psli->mbox_tmo, jiffies + HZ * LPFC_MBOX_TMO); | |
1855 | } | |
1856 | ||
1857 | /* Mailbox cmd <cmd> issue */ | |
1858 | lpfc_printf_log(phba, | |
1859 | KERN_INFO, | |
1860 | LOG_MBOX | LOG_SLI, | |
1861 | "%d:0309 Mailbox cmd x%x issue Data: x%x x%x x%x\n", | |
1862 | phba->brd_no, | |
1863 | mb->mbxCommand, | |
1864 | phba->hba_state, | |
1865 | psli->sli_flag, | |
1866 | flag); | |
1867 | ||
1868 | psli->slistat.mbox_cmd++; | |
1869 | evtctr = psli->slistat.mbox_event; | |
1870 | ||
1871 | /* next set own bit for the adapter and copy over command word */ | |
1872 | mb->mbxOwner = OWN_CHIP; | |
1873 | ||
1874 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
dea3101e | 1875 | /* First copy command data to host SLIM area */ |
4cc2da1d | 1876 | lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx, MAILBOX_CMD_SIZE); |
dea3101e | 1877 | } else { |
1878 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
1879 | /* copy command data into host mbox for cmpl */ | |
4cc2da1d JSEC |
1880 | lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx, |
1881 | MAILBOX_CMD_SIZE); | |
dea3101e | 1882 | } |
1883 | ||
1884 | /* First copy mbox command data to HBA SLIM, skip past first | |
1885 | word */ | |
1886 | to_slim = phba->MBslimaddr + sizeof (uint32_t); | |
1887 | lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0], | |
1888 | MAILBOX_CMD_SIZE - sizeof (uint32_t)); | |
1889 | ||
1890 | /* Next copy over first word, with mbxOwner set */ | |
1891 | ldata = *((volatile uint32_t *)mb); | |
1892 | to_slim = phba->MBslimaddr; | |
1893 | writel(ldata, to_slim); | |
1894 | readl(to_slim); /* flush */ | |
1895 | ||
1896 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
1897 | /* switch over to host mailbox */ | |
1898 | psli->sli_flag |= LPFC_SLI2_ACTIVE; | |
1899 | } | |
1900 | } | |
1901 | ||
1902 | wmb(); | |
1903 | /* interrupt board to doit right away */ | |
1904 | writel(CA_MBATT, phba->CAregaddr); | |
1905 | readl(phba->CAregaddr); /* flush */ | |
1906 | ||
1907 | switch (flag) { | |
1908 | case MBX_NOWAIT: | |
1909 | /* Don't wait for it to finish, just return */ | |
1910 | psli->mbox_active = pmbox; | |
1911 | break; | |
1912 | ||
1913 | case MBX_POLL: | |
1914 | i = 0; | |
1915 | psli->mbox_active = NULL; | |
1916 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
1917 | /* First read mbox status word */ | |
4cc2da1d | 1918 | word0 = *((volatile uint32_t *)&phba->slim2p->mbx); |
dea3101e | 1919 | word0 = le32_to_cpu(word0); |
1920 | } else { | |
1921 | /* First read mbox status word */ | |
1922 | word0 = readl(phba->MBslimaddr); | |
1923 | } | |
1924 | ||
1925 | /* Read the HBA Host Attention Register */ | |
1926 | ha_copy = readl(phba->HAregaddr); | |
1927 | ||
1928 | /* Wait for command to complete */ | |
1929 | while (((word0 & OWN_CHIP) == OWN_CHIP) | |
1930 | || !(ha_copy & HA_MBATT)) { | |
1931 | if (i++ >= 100) { | |
1932 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
1933 | spin_unlock_irqrestore(phba->host->host_lock, | |
1934 | drvr_flag); | |
1935 | return (MBX_NOT_FINISHED); | |
1936 | } | |
1937 | ||
1938 | /* Check if we took a mbox interrupt while we were | |
1939 | polling */ | |
1940 | if (((word0 & OWN_CHIP) != OWN_CHIP) | |
1941 | && (evtctr != psli->slistat.mbox_event)) | |
1942 | break; | |
1943 | ||
1944 | spin_unlock_irqrestore(phba->host->host_lock, | |
1945 | drvr_flag); | |
1946 | ||
1947 | /* Can be in interrupt context, do not sleep */ | |
1948 | /* (or might be called with interrupts disabled) */ | |
1949 | mdelay(i); | |
1950 | ||
1951 | spin_lock_irqsave(phba->host->host_lock, drvr_flag); | |
1952 | ||
1953 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
1954 | /* First copy command data */ | |
4cc2da1d JSEC |
1955 | word0 = *((volatile uint32_t *) |
1956 | &phba->slim2p->mbx); | |
dea3101e | 1957 | word0 = le32_to_cpu(word0); |
1958 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
1959 | MAILBOX_t *slimmb; | |
1960 | volatile uint32_t slimword0; | |
1961 | /* Check real SLIM for any errors */ | |
1962 | slimword0 = readl(phba->MBslimaddr); | |
1963 | slimmb = (MAILBOX_t *) & slimword0; | |
1964 | if (((slimword0 & OWN_CHIP) != OWN_CHIP) | |
1965 | && slimmb->mbxStatus) { | |
1966 | psli->sli_flag &= | |
1967 | ~LPFC_SLI2_ACTIVE; | |
1968 | word0 = slimword0; | |
1969 | } | |
1970 | } | |
1971 | } else { | |
1972 | /* First copy command data */ | |
1973 | word0 = readl(phba->MBslimaddr); | |
1974 | } | |
1975 | /* Read the HBA Host Attention Register */ | |
1976 | ha_copy = readl(phba->HAregaddr); | |
1977 | } | |
1978 | ||
1979 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
dea3101e | 1980 | /* copy results back to user */ |
4cc2da1d JSEC |
1981 | lpfc_sli_pcimem_bcopy(&phba->slim2p->mbx, mb, |
1982 | MAILBOX_CMD_SIZE); | |
dea3101e | 1983 | } else { |
1984 | /* First copy command data */ | |
1985 | lpfc_memcpy_from_slim(mb, phba->MBslimaddr, | |
1986 | MAILBOX_CMD_SIZE); | |
1987 | if ((mb->mbxCommand == MBX_DUMP_MEMORY) && | |
1988 | pmbox->context2) { | |
1989 | lpfc_memcpy_from_slim((void *)pmbox->context2, | |
1990 | phba->MBslimaddr + DMP_RSP_OFFSET, | |
1991 | mb->un.varDmp.word_cnt); | |
1992 | } | |
1993 | } | |
1994 | ||
1995 | writel(HA_MBATT, phba->HAregaddr); | |
1996 | readl(phba->HAregaddr); /* flush */ | |
1997 | ||
1998 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
1999 | status = mb->mbxStatus; | |
2000 | } | |
2001 | ||
2002 | spin_unlock_irqrestore(phba->host->host_lock, drvr_flag); | |
2003 | return (status); | |
2004 | } | |
2005 | ||
2006 | static int | |
2007 | lpfc_sli_ringtx_put(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, | |
2008 | struct lpfc_iocbq * piocb) | |
2009 | { | |
2010 | /* Insert the caller's iocb in the txq tail for later processing. */ | |
2011 | list_add_tail(&piocb->list, &pring->txq); | |
2012 | pring->txq_cnt++; | |
2013 | return (0); | |
2014 | } | |
2015 | ||
2016 | static struct lpfc_iocbq * | |
2017 | lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2018 | struct lpfc_iocbq ** piocb) | |
2019 | { | |
2020 | struct lpfc_iocbq * nextiocb; | |
2021 | ||
2022 | nextiocb = lpfc_sli_ringtx_get(phba, pring); | |
2023 | if (!nextiocb) { | |
2024 | nextiocb = *piocb; | |
2025 | *piocb = NULL; | |
2026 | } | |
2027 | ||
2028 | return nextiocb; | |
2029 | } | |
2030 | ||
2031 | int | |
2032 | lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2033 | struct lpfc_iocbq *piocb, uint32_t flag) | |
2034 | { | |
2035 | struct lpfc_iocbq *nextiocb; | |
2036 | IOCB_t *iocb; | |
2037 | ||
2038 | /* | |
2039 | * We should never get an IOCB if we are in a < LINK_DOWN state | |
2040 | */ | |
2041 | if (unlikely(phba->hba_state < LPFC_LINK_DOWN)) | |
2042 | return IOCB_ERROR; | |
2043 | ||
2044 | /* | |
2045 | * Check to see if we are blocking IOCB processing because of a | |
2046 | * outstanding mbox command. | |
2047 | */ | |
2048 | if (unlikely(pring->flag & LPFC_STOP_IOCB_MBX)) | |
2049 | goto iocb_busy; | |
2050 | ||
2051 | if (unlikely(phba->hba_state == LPFC_LINK_DOWN)) { | |
2052 | /* | |
2053 | * Only CREATE_XRI, CLOSE_XRI, ABORT_XRI, and QUE_RING_BUF | |
2054 | * can be issued if the link is not up. | |
2055 | */ | |
2056 | switch (piocb->iocb.ulpCommand) { | |
2057 | case CMD_QUE_RING_BUF_CN: | |
2058 | case CMD_QUE_RING_BUF64_CN: | |
dea3101e | 2059 | /* |
2060 | * For IOCBs, like QUE_RING_BUF, that have no rsp ring | |
2061 | * completion, iocb_cmpl MUST be 0. | |
2062 | */ | |
2063 | if (piocb->iocb_cmpl) | |
2064 | piocb->iocb_cmpl = NULL; | |
2065 | /*FALLTHROUGH*/ | |
2066 | case CMD_CREATE_XRI_CR: | |
2067 | break; | |
2068 | default: | |
2069 | goto iocb_busy; | |
2070 | } | |
2071 | ||
2072 | /* | |
2073 | * For FCP commands, we must be in a state where we can process link | |
2074 | * attention events. | |
2075 | */ | |
2076 | } else if (unlikely(pring->ringno == phba->sli.fcp_ring && | |
2077 | !(phba->sli.sli_flag & LPFC_PROCESS_LA))) | |
2078 | goto iocb_busy; | |
2079 | ||
2080 | /* | |
2081 | * Check to see if this is a high priority command. | |
2082 | * If so bypass tx queue processing. | |
2083 | */ | |
2084 | if (unlikely((flag & SLI_IOCB_HIGH_PRIORITY) && | |
2085 | (iocb = lpfc_sli_next_iocb_slot(phba, pring)))) { | |
2086 | lpfc_sli_submit_iocb(phba, pring, iocb, piocb); | |
2087 | piocb = NULL; | |
2088 | } | |
2089 | ||
2090 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && | |
2091 | (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb))) | |
2092 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
2093 | ||
2094 | if (iocb) | |
2095 | lpfc_sli_update_ring(phba, pring); | |
2096 | else | |
2097 | lpfc_sli_update_full_ring(phba, pring); | |
2098 | ||
2099 | if (!piocb) | |
2100 | return IOCB_SUCCESS; | |
2101 | ||
2102 | goto out_busy; | |
2103 | ||
2104 | iocb_busy: | |
2105 | pring->stats.iocb_cmd_delay++; | |
2106 | ||
2107 | out_busy: | |
2108 | ||
2109 | if (!(flag & SLI_IOCB_RET_IOCB)) { | |
2110 | lpfc_sli_ringtx_put(phba, pring, piocb); | |
2111 | return IOCB_SUCCESS; | |
2112 | } | |
2113 | ||
2114 | return IOCB_BUSY; | |
2115 | } | |
2116 | ||
2117 | int | |
2118 | lpfc_sli_setup(struct lpfc_hba *phba) | |
2119 | { | |
2120 | int i, totiocb = 0; | |
2121 | struct lpfc_sli *psli = &phba->sli; | |
2122 | struct lpfc_sli_ring *pring; | |
2123 | ||
2124 | psli->num_rings = MAX_CONFIGURED_RINGS; | |
2125 | psli->sli_flag = 0; | |
2126 | psli->fcp_ring = LPFC_FCP_RING; | |
2127 | psli->next_ring = LPFC_FCP_NEXT_RING; | |
2128 | psli->ip_ring = LPFC_IP_RING; | |
2129 | ||
604a3e30 JB |
2130 | psli->iocbq_lookup = NULL; |
2131 | psli->iocbq_lookup_len = 0; | |
2132 | psli->last_iotag = 0; | |
2133 | ||
dea3101e | 2134 | for (i = 0; i < psli->num_rings; i++) { |
2135 | pring = &psli->ring[i]; | |
2136 | switch (i) { | |
2137 | case LPFC_FCP_RING: /* ring 0 - FCP */ | |
2138 | /* numCiocb and numRiocb are used in config_port */ | |
2139 | pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES; | |
2140 | pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES; | |
2141 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
2142 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
2143 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
2144 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
2145 | pring->iotag_ctr = 0; | |
2146 | pring->iotag_max = | |
2147 | (phba->cfg_hba_queue_depth * 2); | |
2148 | pring->fast_iotag = pring->iotag_max; | |
2149 | pring->num_mask = 0; | |
2150 | break; | |
2151 | case LPFC_IP_RING: /* ring 1 - IP */ | |
2152 | /* numCiocb and numRiocb are used in config_port */ | |
2153 | pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES; | |
2154 | pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES; | |
2155 | pring->num_mask = 0; | |
2156 | break; | |
2157 | case LPFC_ELS_RING: /* ring 2 - ELS / CT */ | |
2158 | /* numCiocb and numRiocb are used in config_port */ | |
2159 | pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES; | |
2160 | pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES; | |
2161 | pring->fast_iotag = 0; | |
2162 | pring->iotag_ctr = 0; | |
2163 | pring->iotag_max = 4096; | |
2164 | pring->num_mask = 4; | |
2165 | pring->prt[0].profile = 0; /* Mask 0 */ | |
2166 | pring->prt[0].rctl = FC_ELS_REQ; | |
2167 | pring->prt[0].type = FC_ELS_DATA; | |
2168 | pring->prt[0].lpfc_sli_rcv_unsol_event = | |
2169 | lpfc_els_unsol_event; | |
2170 | pring->prt[1].profile = 0; /* Mask 1 */ | |
2171 | pring->prt[1].rctl = FC_ELS_RSP; | |
2172 | pring->prt[1].type = FC_ELS_DATA; | |
2173 | pring->prt[1].lpfc_sli_rcv_unsol_event = | |
2174 | lpfc_els_unsol_event; | |
2175 | pring->prt[2].profile = 0; /* Mask 2 */ | |
2176 | /* NameServer Inquiry */ | |
2177 | pring->prt[2].rctl = FC_UNSOL_CTL; | |
2178 | /* NameServer */ | |
2179 | pring->prt[2].type = FC_COMMON_TRANSPORT_ULP; | |
2180 | pring->prt[2].lpfc_sli_rcv_unsol_event = | |
2181 | lpfc_ct_unsol_event; | |
2182 | pring->prt[3].profile = 0; /* Mask 3 */ | |
2183 | /* NameServer response */ | |
2184 | pring->prt[3].rctl = FC_SOL_CTL; | |
2185 | /* NameServer */ | |
2186 | pring->prt[3].type = FC_COMMON_TRANSPORT_ULP; | |
2187 | pring->prt[3].lpfc_sli_rcv_unsol_event = | |
2188 | lpfc_ct_unsol_event; | |
2189 | break; | |
2190 | } | |
2191 | totiocb += (pring->numCiocb + pring->numRiocb); | |
2192 | } | |
2193 | if (totiocb > MAX_SLI2_IOCB) { | |
2194 | /* Too many cmd / rsp ring entries in SLI2 SLIM */ | |
2195 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
2196 | "%d:0462 Too many cmd / rsp ring entries in " | |
2197 | "SLI2 SLIM Data: x%x x%x\n", | |
2198 | phba->brd_no, totiocb, MAX_SLI2_IOCB); | |
2199 | } | |
2200 | ||
2201 | return 0; | |
2202 | } | |
2203 | ||
2204 | int | |
2205 | lpfc_sli_queue_setup(struct lpfc_hba * phba) | |
2206 | { | |
2207 | struct lpfc_sli *psli; | |
2208 | struct lpfc_sli_ring *pring; | |
604a3e30 | 2209 | int i; |
dea3101e | 2210 | |
2211 | psli = &phba->sli; | |
2212 | spin_lock_irq(phba->host->host_lock); | |
2213 | INIT_LIST_HEAD(&psli->mboxq); | |
2214 | /* Initialize list headers for txq and txcmplq as double linked lists */ | |
2215 | for (i = 0; i < psli->num_rings; i++) { | |
2216 | pring = &psli->ring[i]; | |
2217 | pring->ringno = i; | |
2218 | pring->next_cmdidx = 0; | |
2219 | pring->local_getidx = 0; | |
2220 | pring->cmdidx = 0; | |
2221 | INIT_LIST_HEAD(&pring->txq); | |
2222 | INIT_LIST_HEAD(&pring->txcmplq); | |
2223 | INIT_LIST_HEAD(&pring->iocb_continueq); | |
2224 | INIT_LIST_HEAD(&pring->postbufq); | |
dea3101e | 2225 | } |
2226 | spin_unlock_irq(phba->host->host_lock); | |
2227 | return (1); | |
2228 | } | |
2229 | ||
2230 | int | |
2231 | lpfc_sli_hba_down(struct lpfc_hba * phba) | |
2232 | { | |
2233 | struct lpfc_sli *psli; | |
2234 | struct lpfc_sli_ring *pring; | |
2235 | LPFC_MBOXQ_t *pmb; | |
2236 | struct lpfc_iocbq *iocb, *next_iocb; | |
2237 | IOCB_t *icmd = NULL; | |
2238 | int i; | |
2239 | unsigned long flags = 0; | |
2240 | ||
2241 | psli = &phba->sli; | |
2242 | lpfc_hba_down_prep(phba); | |
2243 | ||
2244 | spin_lock_irqsave(phba->host->host_lock, flags); | |
2245 | ||
2246 | for (i = 0; i < psli->num_rings; i++) { | |
2247 | pring = &psli->ring[i]; | |
2248 | pring->flag |= LPFC_DEFERRED_RING_EVENT; | |
2249 | ||
2250 | /* | |
2251 | * Error everything on the txq since these iocbs have not been | |
2252 | * given to the FW yet. | |
2253 | */ | |
2254 | pring->txq_cnt = 0; | |
2255 | ||
2256 | list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { | |
2257 | list_del_init(&iocb->list); | |
2258 | if (iocb->iocb_cmpl) { | |
2259 | icmd = &iocb->iocb; | |
2260 | icmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
2261 | icmd->un.ulpWord[4] = IOERR_SLI_DOWN; | |
2262 | spin_unlock_irqrestore(phba->host->host_lock, | |
2263 | flags); | |
2264 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
2265 | spin_lock_irqsave(phba->host->host_lock, flags); | |
604a3e30 JB |
2266 | } else |
2267 | lpfc_sli_release_iocbq(phba, iocb); | |
dea3101e | 2268 | } |
2269 | ||
2270 | INIT_LIST_HEAD(&(pring->txq)); | |
2271 | ||
c9475cb0 JJ |
2272 | kfree(pring->fast_lookup); |
2273 | pring->fast_lookup = NULL; | |
dea3101e | 2274 | } |
2275 | ||
2276 | spin_unlock_irqrestore(phba->host->host_lock, flags); | |
2277 | ||
2278 | /* Return any active mbox cmds */ | |
2279 | del_timer_sync(&psli->mbox_tmo); | |
2280 | spin_lock_irqsave(phba->host->host_lock, flags); | |
2281 | phba->work_hba_events &= ~WORKER_MBOX_TMO; | |
2282 | if (psli->mbox_active) { | |
2283 | pmb = psli->mbox_active; | |
2284 | pmb->mb.mbxStatus = MBX_NOT_FINISHED; | |
2285 | if (pmb->mbox_cmpl) { | |
2286 | spin_unlock_irqrestore(phba->host->host_lock, flags); | |
2287 | pmb->mbox_cmpl(phba,pmb); | |
2288 | spin_lock_irqsave(phba->host->host_lock, flags); | |
2289 | } | |
2290 | } | |
2291 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
2292 | psli->mbox_active = NULL; | |
2293 | ||
2294 | /* Return any pending mbox cmds */ | |
2295 | while ((pmb = lpfc_mbox_get(phba)) != NULL) { | |
2296 | pmb->mb.mbxStatus = MBX_NOT_FINISHED; | |
2297 | if (pmb->mbox_cmpl) { | |
2298 | spin_unlock_irqrestore(phba->host->host_lock, flags); | |
2299 | pmb->mbox_cmpl(phba,pmb); | |
2300 | spin_lock_irqsave(phba->host->host_lock, flags); | |
2301 | } | |
2302 | } | |
2303 | ||
2304 | INIT_LIST_HEAD(&psli->mboxq); | |
2305 | ||
2306 | spin_unlock_irqrestore(phba->host->host_lock, flags); | |
2307 | ||
2308 | /* | |
2309 | * Provided the hba is not in an error state, reset it. It is not | |
2310 | * capable of IO anymore. | |
2311 | */ | |
2312 | if (phba->hba_state != LPFC_HBA_ERROR) { | |
2313 | phba->hba_state = LPFC_INIT_START; | |
2314 | lpfc_sli_brdreset(phba, 1); | |
2315 | } | |
2316 | ||
2317 | return 1; | |
2318 | } | |
2319 | ||
2320 | void | |
2321 | lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt) | |
2322 | { | |
2323 | uint32_t *src = srcp; | |
2324 | uint32_t *dest = destp; | |
2325 | uint32_t ldata; | |
2326 | int i; | |
2327 | ||
2328 | for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) { | |
2329 | ldata = *src; | |
2330 | ldata = le32_to_cpu(ldata); | |
2331 | *dest = ldata; | |
2332 | src++; | |
2333 | dest++; | |
2334 | } | |
2335 | } | |
2336 | ||
2337 | int | |
2338 | lpfc_sli_ringpostbuf_put(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, | |
2339 | struct lpfc_dmabuf * mp) | |
2340 | { | |
2341 | /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up | |
2342 | later */ | |
2343 | list_add_tail(&mp->list, &pring->postbufq); | |
2344 | ||
2345 | pring->postbufq_cnt++; | |
2346 | return 0; | |
2347 | } | |
2348 | ||
2349 | ||
2350 | struct lpfc_dmabuf * | |
2351 | lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2352 | dma_addr_t phys) | |
2353 | { | |
2354 | struct lpfc_dmabuf *mp, *next_mp; | |
2355 | struct list_head *slp = &pring->postbufq; | |
2356 | ||
2357 | /* Search postbufq, from the begining, looking for a match on phys */ | |
2358 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { | |
2359 | if (mp->phys == phys) { | |
2360 | list_del_init(&mp->list); | |
2361 | pring->postbufq_cnt--; | |
2362 | return mp; | |
2363 | } | |
2364 | } | |
2365 | ||
2366 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
2367 | "%d:0410 Cannot find virtual addr for mapped buf on " | |
2368 | "ring %d Data x%llx x%p x%p x%x\n", | |
2369 | phba->brd_no, pring->ringno, (unsigned long long)phys, | |
2370 | slp->next, slp->prev, pring->postbufq_cnt); | |
2371 | return NULL; | |
2372 | } | |
2373 | ||
2374 | static void | |
2375 | lpfc_sli_abort_elsreq_cmpl(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, | |
2376 | struct lpfc_iocbq * rspiocb) | |
2377 | { | |
2378 | struct lpfc_dmabuf *buf_ptr, *buf_ptr1; | |
2379 | /* Free the resources associated with the ELS_REQUEST64 IOCB the driver | |
2380 | * just aborted. | |
2381 | * In this case, context2 = cmd, context2->next = rsp, context3 = bpl | |
2382 | */ | |
2383 | if (cmdiocb->context2) { | |
2384 | buf_ptr1 = (struct lpfc_dmabuf *) cmdiocb->context2; | |
2385 | ||
2386 | /* Free the response IOCB before completing the abort | |
2387 | command. */ | |
2388 | buf_ptr = NULL; | |
2389 | list_remove_head((&buf_ptr1->list), buf_ptr, | |
2390 | struct lpfc_dmabuf, list); | |
2391 | if (buf_ptr) { | |
2392 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
2393 | kfree(buf_ptr); | |
2394 | } | |
2395 | lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys); | |
2396 | kfree(buf_ptr1); | |
2397 | } | |
2398 | ||
2399 | if (cmdiocb->context3) { | |
2400 | buf_ptr = (struct lpfc_dmabuf *) cmdiocb->context3; | |
2401 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
2402 | kfree(buf_ptr); | |
2403 | } | |
2404 | ||
604a3e30 | 2405 | lpfc_sli_release_iocbq(phba, cmdiocb); |
dea3101e | 2406 | return; |
2407 | } | |
2408 | ||
2409 | int | |
2410 | lpfc_sli_issue_abort_iotag32(struct lpfc_hba * phba, | |
2411 | struct lpfc_sli_ring * pring, | |
2412 | struct lpfc_iocbq * cmdiocb) | |
2413 | { | |
0bd4ca25 | 2414 | struct lpfc_iocbq *abtsiocbp; |
dea3101e | 2415 | IOCB_t *icmd = NULL; |
2416 | IOCB_t *iabt = NULL; | |
2417 | ||
2418 | /* issue ABTS for this IOCB based on iotag */ | |
0bd4ca25 | 2419 | abtsiocbp = lpfc_sli_get_iocbq(phba); |
dea3101e | 2420 | if (abtsiocbp == NULL) |
2421 | return 0; | |
dea3101e | 2422 | |
2423 | iabt = &abtsiocbp->iocb; | |
2424 | icmd = &cmdiocb->iocb; | |
2425 | switch (icmd->ulpCommand) { | |
2426 | case CMD_ELS_REQUEST64_CR: | |
2427 | /* Even though we abort the ELS command, the firmware may access | |
2428 | * the BPL or other resources before it processes our | |
2429 | * ABORT_MXRI64. Thus we must delay reusing the cmdiocb | |
2430 | * resources till the actual abort request completes. | |
2431 | */ | |
2432 | abtsiocbp->context1 = (void *)((unsigned long)icmd->ulpCommand); | |
2433 | abtsiocbp->context2 = cmdiocb->context2; | |
2434 | abtsiocbp->context3 = cmdiocb->context3; | |
2435 | cmdiocb->context2 = NULL; | |
2436 | cmdiocb->context3 = NULL; | |
2437 | abtsiocbp->iocb_cmpl = lpfc_sli_abort_elsreq_cmpl; | |
2438 | break; | |
2439 | default: | |
604a3e30 | 2440 | lpfc_sli_release_iocbq(phba, abtsiocbp); |
dea3101e | 2441 | return 0; |
2442 | } | |
2443 | ||
2444 | iabt->un.amxri.abortType = ABORT_TYPE_ABTS; | |
2445 | iabt->un.amxri.iotag32 = icmd->un.elsreq64.bdl.ulpIoTag32; | |
2446 | ||
2447 | iabt->ulpLe = 1; | |
2448 | iabt->ulpClass = CLASS3; | |
2449 | iabt->ulpCommand = CMD_ABORT_MXRI64_CN; | |
2450 | ||
2451 | if (lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0) == IOCB_ERROR) { | |
604a3e30 | 2452 | lpfc_sli_release_iocbq(phba, abtsiocbp); |
dea3101e | 2453 | return 0; |
2454 | } | |
2455 | ||
2456 | return 1; | |
2457 | } | |
2458 | ||
2459 | static int | |
0bd4ca25 JSEC |
2460 | lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, uint16_t tgt_id, |
2461 | uint64_t lun_id, uint32_t ctx, | |
2462 | lpfc_ctx_cmd ctx_cmd) | |
dea3101e | 2463 | { |
0bd4ca25 JSEC |
2464 | struct lpfc_scsi_buf *lpfc_cmd; |
2465 | struct scsi_cmnd *cmnd; | |
dea3101e | 2466 | int rc = 1; |
2467 | ||
0bd4ca25 JSEC |
2468 | if (!(iocbq->iocb_flag & LPFC_IO_FCP)) |
2469 | return rc; | |
2470 | ||
2471 | lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq); | |
2472 | cmnd = lpfc_cmd->pCmd; | |
2473 | ||
2474 | if (cmnd == NULL) | |
dea3101e | 2475 | return rc; |
2476 | ||
2477 | switch (ctx_cmd) { | |
2478 | case LPFC_CTX_LUN: | |
0bd4ca25 JSEC |
2479 | if ((cmnd->device->id == tgt_id) && |
2480 | (cmnd->device->lun == lun_id)) | |
dea3101e | 2481 | rc = 0; |
2482 | break; | |
2483 | case LPFC_CTX_TGT: | |
0bd4ca25 | 2484 | if (cmnd->device->id == tgt_id) |
dea3101e | 2485 | rc = 0; |
2486 | break; | |
2487 | case LPFC_CTX_CTX: | |
0bd4ca25 | 2488 | if (iocbq->iocb.ulpContext == ctx) |
dea3101e | 2489 | rc = 0; |
0bd4ca25 | 2490 | break; |
dea3101e | 2491 | case LPFC_CTX_HOST: |
2492 | rc = 0; | |
2493 | break; | |
2494 | default: | |
2495 | printk(KERN_ERR "%s: Unknown context cmd type, value %d\n", | |
2496 | __FUNCTION__, ctx_cmd); | |
2497 | break; | |
2498 | } | |
2499 | ||
2500 | return rc; | |
2501 | } | |
2502 | ||
2503 | int | |
2504 | lpfc_sli_sum_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2505 | uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd ctx_cmd) | |
2506 | { | |
0bd4ca25 JSEC |
2507 | struct lpfc_iocbq *iocbq; |
2508 | int sum, i; | |
dea3101e | 2509 | |
0bd4ca25 JSEC |
2510 | for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) { |
2511 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 2512 | |
0bd4ca25 JSEC |
2513 | if (lpfc_sli_validate_fcp_iocb (iocbq, tgt_id, lun_id, |
2514 | 0, ctx_cmd) == 0) | |
2515 | sum++; | |
dea3101e | 2516 | } |
0bd4ca25 | 2517 | |
dea3101e | 2518 | return sum; |
2519 | } | |
2520 | ||
5eb95af0 JSEC |
2521 | void |
2522 | lpfc_sli_abort_fcp_cmpl(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, | |
2523 | struct lpfc_iocbq * rspiocb) | |
2524 | { | |
2525 | spin_lock_irq(phba->host->host_lock); | |
604a3e30 | 2526 | lpfc_sli_release_iocbq(phba, cmdiocb); |
5eb95af0 JSEC |
2527 | spin_unlock_irq(phba->host->host_lock); |
2528 | return; | |
2529 | } | |
2530 | ||
dea3101e | 2531 | int |
2532 | lpfc_sli_abort_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2533 | uint16_t tgt_id, uint64_t lun_id, uint32_t ctx, | |
2534 | lpfc_ctx_cmd abort_cmd) | |
2535 | { | |
0bd4ca25 JSEC |
2536 | struct lpfc_iocbq *iocbq; |
2537 | struct lpfc_iocbq *abtsiocb; | |
dea3101e | 2538 | IOCB_t *cmd = NULL; |
dea3101e | 2539 | int errcnt = 0, ret_val = 0; |
0bd4ca25 | 2540 | int i; |
dea3101e | 2541 | |
0bd4ca25 JSEC |
2542 | for (i = 1; i <= phba->sli.last_iotag; i++) { |
2543 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 2544 | |
0bd4ca25 JSEC |
2545 | if (lpfc_sli_validate_fcp_iocb (iocbq, tgt_id, lun_id, |
2546 | 0, abort_cmd) != 0) | |
dea3101e | 2547 | continue; |
2548 | ||
2549 | /* issue ABTS for this IOCB based on iotag */ | |
0bd4ca25 | 2550 | abtsiocb = lpfc_sli_get_iocbq(phba); |
dea3101e | 2551 | if (abtsiocb == NULL) { |
2552 | errcnt++; | |
2553 | continue; | |
2554 | } | |
dea3101e | 2555 | |
0bd4ca25 | 2556 | cmd = &iocbq->iocb; |
dea3101e | 2557 | abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS; |
2558 | abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext; | |
2559 | abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag; | |
2560 | abtsiocb->iocb.ulpLe = 1; | |
2561 | abtsiocb->iocb.ulpClass = cmd->ulpClass; | |
2562 | ||
2563 | if (phba->hba_state >= LPFC_LINK_UP) | |
2564 | abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN; | |
2565 | else | |
2566 | abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN; | |
2567 | ||
5eb95af0 JSEC |
2568 | /* Setup callback routine and issue the command. */ |
2569 | abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl; | |
dea3101e | 2570 | ret_val = lpfc_sli_issue_iocb(phba, pring, abtsiocb, 0); |
2571 | if (ret_val == IOCB_ERROR) { | |
604a3e30 | 2572 | lpfc_sli_release_iocbq(phba, abtsiocb); |
dea3101e | 2573 | errcnt++; |
2574 | continue; | |
2575 | } | |
2576 | } | |
2577 | ||
2578 | return errcnt; | |
2579 | } | |
2580 | ||
68876920 JSEC |
2581 | static void |
2582 | lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba, | |
2583 | struct lpfc_iocbq *cmdiocbq, | |
2584 | struct lpfc_iocbq *rspiocbq) | |
dea3101e | 2585 | { |
68876920 JSEC |
2586 | wait_queue_head_t *pdone_q; |
2587 | unsigned long iflags; | |
dea3101e | 2588 | |
68876920 JSEC |
2589 | spin_lock_irqsave(phba->host->host_lock, iflags); |
2590 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; | |
2591 | if (cmdiocbq->context2 && rspiocbq) | |
2592 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, | |
2593 | &rspiocbq->iocb, sizeof(IOCB_t)); | |
2594 | ||
2595 | pdone_q = cmdiocbq->context_un.wait_queue; | |
2596 | spin_unlock_irqrestore(phba->host->host_lock, iflags); | |
2597 | if (pdone_q) | |
2598 | wake_up(pdone_q); | |
dea3101e | 2599 | return; |
2600 | } | |
2601 | ||
68876920 JSEC |
2602 | /* |
2603 | * Issue the caller's iocb and wait for its completion, but no longer than the | |
2604 | * caller's timeout. Note that iocb_flags is cleared before the | |
2605 | * lpfc_sli_issue_call since the wake routine sets a unique value and by | |
2606 | * definition this is a wait function. | |
2607 | */ | |
dea3101e | 2608 | int |
68876920 JSEC |
2609 | lpfc_sli_issue_iocb_wait(struct lpfc_hba * phba, |
2610 | struct lpfc_sli_ring * pring, | |
2611 | struct lpfc_iocbq * piocb, | |
2612 | struct lpfc_iocbq * prspiocbq, | |
2613 | uint32_t timeout) | |
dea3101e | 2614 | { |
68876920 JSEC |
2615 | DECLARE_WAIT_QUEUE_HEAD(done_q); |
2616 | long timeleft, timeout_req = 0; | |
2617 | int retval = IOCB_SUCCESS; | |
dea3101e | 2618 | |
2619 | /* | |
68876920 JSEC |
2620 | * If the caller has provided a response iocbq buffer, then context2 |
2621 | * is NULL or its an error. | |
dea3101e | 2622 | */ |
68876920 JSEC |
2623 | if (prspiocbq) { |
2624 | if (piocb->context2) | |
2625 | return IOCB_ERROR; | |
2626 | piocb->context2 = prspiocbq; | |
dea3101e | 2627 | } |
2628 | ||
68876920 JSEC |
2629 | piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait; |
2630 | piocb->context_un.wait_queue = &done_q; | |
2631 | piocb->iocb_flag &= ~LPFC_IO_WAKE; | |
dea3101e | 2632 | |
68876920 JSEC |
2633 | retval = lpfc_sli_issue_iocb(phba, pring, piocb, 0); |
2634 | if (retval == IOCB_SUCCESS) { | |
2635 | timeout_req = timeout * HZ; | |
2636 | spin_unlock_irq(phba->host->host_lock); | |
2637 | timeleft = wait_event_timeout(done_q, | |
2638 | piocb->iocb_flag & LPFC_IO_WAKE, | |
2639 | timeout_req); | |
2640 | spin_lock_irq(phba->host->host_lock); | |
dea3101e | 2641 | |
68876920 JSEC |
2642 | if (timeleft == 0) { |
2643 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
2644 | "%d:0329 IOCB wait timeout error - no " | |
2645 | "wake response Data x%x\n", | |
2646 | phba->brd_no, timeout); | |
2647 | retval = IOCB_TIMEDOUT; | |
2648 | } else if (!(piocb->iocb_flag & LPFC_IO_WAKE)) { | |
2649 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
2650 | "%d:0330 IOCB wake NOT set, " | |
2651 | "Data x%x x%lx\n", phba->brd_no, | |
2652 | timeout, (timeleft / jiffies)); | |
2653 | retval = IOCB_TIMEDOUT; | |
2654 | } else { | |
2655 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
2656 | "%d:0331 IOCB wake signaled\n", | |
2657 | phba->brd_no); | |
dea3101e | 2658 | } |
68876920 JSEC |
2659 | } else { |
2660 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
2661 | "%d:0332 IOCB wait issue failed, Data x%x\n", | |
2662 | phba->brd_no, retval); | |
2663 | retval = IOCB_ERROR; | |
dea3101e | 2664 | } |
2665 | ||
68876920 JSEC |
2666 | if (prspiocbq) |
2667 | piocb->context2 = NULL; | |
2668 | ||
2669 | piocb->context_un.wait_queue = NULL; | |
2670 | piocb->iocb_cmpl = NULL; | |
dea3101e | 2671 | return retval; |
2672 | } | |
68876920 | 2673 | |
dea3101e | 2674 | int |
2675 | lpfc_sli_issue_mbox_wait(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq, | |
2676 | uint32_t timeout) | |
2677 | { | |
2678 | DECLARE_WAIT_QUEUE_HEAD(done_q); | |
2679 | DECLARE_WAITQUEUE(wq_entry, current); | |
2680 | uint32_t timeleft = 0; | |
2681 | int retval; | |
2682 | ||
2683 | /* The caller must leave context1 empty. */ | |
2684 | if (pmboxq->context1 != 0) { | |
2685 | return (MBX_NOT_FINISHED); | |
2686 | } | |
2687 | ||
2688 | /* setup wake call as IOCB callback */ | |
2689 | pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait; | |
2690 | /* setup context field to pass wait_queue pointer to wake function */ | |
2691 | pmboxq->context1 = &done_q; | |
2692 | ||
2693 | /* start to sleep before we wait, to avoid races */ | |
2694 | set_current_state(TASK_INTERRUPTIBLE); | |
2695 | add_wait_queue(&done_q, &wq_entry); | |
2696 | ||
2697 | /* now issue the command */ | |
2698 | retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); | |
2699 | ||
2700 | if (retval == MBX_BUSY || retval == MBX_SUCCESS) { | |
2701 | timeleft = schedule_timeout(timeout * HZ); | |
2702 | pmboxq->context1 = NULL; | |
2703 | /* if schedule_timeout returns 0, we timed out and were not | |
2704 | woken up */ | |
2705 | if (timeleft == 0) { | |
2706 | retval = MBX_TIMEOUT; | |
2707 | } else { | |
2708 | retval = MBX_SUCCESS; | |
2709 | } | |
2710 | } | |
2711 | ||
2712 | ||
2713 | set_current_state(TASK_RUNNING); | |
2714 | remove_wait_queue(&done_q, &wq_entry); | |
2715 | return retval; | |
2716 | } | |
2717 | ||
2718 | irqreturn_t | |
2719 | lpfc_intr_handler(int irq, void *dev_id, struct pt_regs * regs) | |
2720 | { | |
2721 | struct lpfc_hba *phba; | |
2722 | uint32_t ha_copy; | |
2723 | uint32_t work_ha_copy; | |
2724 | unsigned long status; | |
2725 | int i; | |
2726 | uint32_t control; | |
2727 | ||
2728 | /* | |
2729 | * Get the driver's phba structure from the dev_id and | |
2730 | * assume the HBA is not interrupting. | |
2731 | */ | |
2732 | phba = (struct lpfc_hba *) dev_id; | |
2733 | ||
2734 | if (unlikely(!phba)) | |
2735 | return IRQ_NONE; | |
2736 | ||
2737 | phba->sli.slistat.sli_intr++; | |
2738 | ||
2739 | /* | |
2740 | * Call the HBA to see if it is interrupting. If not, don't claim | |
2741 | * the interrupt | |
2742 | */ | |
2743 | ||
2744 | /* Ignore all interrupts during initialization. */ | |
2745 | if (unlikely(phba->hba_state < LPFC_LINK_DOWN)) | |
2746 | return IRQ_NONE; | |
2747 | ||
2748 | /* | |
2749 | * Read host attention register to determine interrupt source | |
2750 | * Clear Attention Sources, except Error Attention (to | |
2751 | * preserve status) and Link Attention | |
2752 | */ | |
2753 | spin_lock(phba->host->host_lock); | |
2754 | ha_copy = readl(phba->HAregaddr); | |
2755 | writel((ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr); | |
2756 | readl(phba->HAregaddr); /* flush */ | |
2757 | spin_unlock(phba->host->host_lock); | |
2758 | ||
2759 | if (unlikely(!ha_copy)) | |
2760 | return IRQ_NONE; | |
2761 | ||
2762 | work_ha_copy = ha_copy & phba->work_ha_mask; | |
2763 | ||
2764 | if (unlikely(work_ha_copy)) { | |
2765 | if (work_ha_copy & HA_LATT) { | |
2766 | if (phba->sli.sli_flag & LPFC_PROCESS_LA) { | |
2767 | /* | |
2768 | * Turn off Link Attention interrupts | |
2769 | * until CLEAR_LA done | |
2770 | */ | |
2771 | spin_lock(phba->host->host_lock); | |
2772 | phba->sli.sli_flag &= ~LPFC_PROCESS_LA; | |
2773 | control = readl(phba->HCregaddr); | |
2774 | control &= ~HC_LAINT_ENA; | |
2775 | writel(control, phba->HCregaddr); | |
2776 | readl(phba->HCregaddr); /* flush */ | |
2777 | spin_unlock(phba->host->host_lock); | |
2778 | } | |
2779 | else | |
2780 | work_ha_copy &= ~HA_LATT; | |
2781 | } | |
2782 | ||
2783 | if (work_ha_copy & ~(HA_ERATT|HA_MBATT|HA_LATT)) { | |
2784 | for (i = 0; i < phba->sli.num_rings; i++) { | |
2785 | if (work_ha_copy & (HA_RXATT << (4*i))) { | |
2786 | /* | |
2787 | * Turn off Slow Rings interrupts | |
2788 | */ | |
2789 | spin_lock(phba->host->host_lock); | |
2790 | control = readl(phba->HCregaddr); | |
2791 | control &= ~(HC_R0INT_ENA << i); | |
2792 | writel(control, phba->HCregaddr); | |
2793 | readl(phba->HCregaddr); /* flush */ | |
2794 | spin_unlock(phba->host->host_lock); | |
2795 | } | |
2796 | } | |
2797 | } | |
2798 | ||
2799 | if (work_ha_copy & HA_ERATT) { | |
2800 | phba->hba_state = LPFC_HBA_ERROR; | |
2801 | /* | |
2802 | * There was a link/board error. Read the | |
2803 | * status register to retrieve the error event | |
2804 | * and process it. | |
2805 | */ | |
2806 | phba->sli.slistat.err_attn_event++; | |
2807 | /* Save status info */ | |
2808 | phba->work_hs = readl(phba->HSregaddr); | |
2809 | phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); | |
2810 | phba->work_status[1] = readl(phba->MBslimaddr + 0xac); | |
2811 | ||
2812 | /* Clear Chip error bit */ | |
2813 | writel(HA_ERATT, phba->HAregaddr); | |
2814 | readl(phba->HAregaddr); /* flush */ | |
2815 | ||
2816 | /* | |
2817 | * Reseting the HBA is the only reliable way | |
2818 | * to shutdown interrupt when there is a | |
2819 | * ERROR. | |
2820 | */ | |
2821 | lpfc_sli_send_reset(phba, phba->hba_state); | |
2822 | } | |
2823 | ||
2824 | spin_lock(phba->host->host_lock); | |
2825 | phba->work_ha |= work_ha_copy; | |
2826 | if (phba->work_wait) | |
2827 | wake_up(phba->work_wait); | |
2828 | spin_unlock(phba->host->host_lock); | |
2829 | } | |
2830 | ||
2831 | ha_copy &= ~(phba->work_ha_mask); | |
2832 | ||
2833 | /* | |
2834 | * Process all events on FCP ring. Take the optimized path for | |
2835 | * FCP IO. Any other IO is slow path and is handled by | |
2836 | * the worker thread. | |
2837 | */ | |
2838 | status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); | |
2839 | status >>= (4*LPFC_FCP_RING); | |
2840 | if (status & HA_RXATT) | |
2841 | lpfc_sli_handle_fast_ring_event(phba, | |
2842 | &phba->sli.ring[LPFC_FCP_RING], | |
2843 | status); | |
2844 | return IRQ_HANDLED; | |
2845 | ||
2846 | } /* lpfc_intr_handler */ |