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dea3101e | 1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
c44ce173 | 3 | * Fibre Channel Host Bus Adapters. * |
41415862 | 4 | * Copyright (C) 2004-2006 Emulex. All rights reserved. * |
c44ce173 | 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: | |
41415862 | 516 | case MBX_KILL_BOARD: |
dea3101e | 517 | case MBX_CONFIG_FARP: |
41415862 | 518 | case MBX_BEACON: |
dea3101e | 519 | case MBX_LOAD_AREA: |
520 | case MBX_RUN_BIU_DIAG64: | |
521 | case MBX_CONFIG_PORT: | |
522 | case MBX_READ_SPARM64: | |
523 | case MBX_READ_RPI64: | |
524 | case MBX_REG_LOGIN64: | |
525 | case MBX_READ_LA64: | |
526 | case MBX_FLASH_WR_ULA: | |
527 | case MBX_SET_DEBUG: | |
528 | case MBX_LOAD_EXP_ROM: | |
529 | ret = mbxCommand; | |
530 | break; | |
531 | default: | |
532 | ret = MBX_SHUTDOWN; | |
533 | break; | |
534 | } | |
535 | return (ret); | |
536 | } | |
537 | static void | |
538 | lpfc_sli_wake_mbox_wait(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) | |
539 | { | |
540 | wait_queue_head_t *pdone_q; | |
541 | ||
542 | /* | |
543 | * If pdone_q is empty, the driver thread gave up waiting and | |
544 | * continued running. | |
545 | */ | |
546 | pdone_q = (wait_queue_head_t *) pmboxq->context1; | |
547 | if (pdone_q) | |
548 | wake_up_interruptible(pdone_q); | |
549 | return; | |
550 | } | |
551 | ||
552 | void | |
553 | lpfc_sli_def_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) | |
554 | { | |
555 | struct lpfc_dmabuf *mp; | |
556 | mp = (struct lpfc_dmabuf *) (pmb->context1); | |
557 | if (mp) { | |
558 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
559 | kfree(mp); | |
560 | } | |
561 | mempool_free( pmb, phba->mbox_mem_pool); | |
562 | return; | |
563 | } | |
564 | ||
565 | int | |
566 | lpfc_sli_handle_mb_event(struct lpfc_hba * phba) | |
567 | { | |
568 | MAILBOX_t *mbox; | |
569 | MAILBOX_t *pmbox; | |
570 | LPFC_MBOXQ_t *pmb; | |
571 | struct lpfc_sli *psli; | |
572 | int i, rc; | |
573 | uint32_t process_next; | |
574 | ||
575 | psli = &phba->sli; | |
576 | /* We should only get here if we are in SLI2 mode */ | |
577 | if (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE)) { | |
578 | return (1); | |
579 | } | |
580 | ||
581 | phba->sli.slistat.mbox_event++; | |
582 | ||
583 | /* Get a Mailbox buffer to setup mailbox commands for callback */ | |
584 | if ((pmb = phba->sli.mbox_active)) { | |
585 | pmbox = &pmb->mb; | |
4cc2da1d | 586 | mbox = &phba->slim2p->mbx; |
dea3101e | 587 | |
588 | /* First check out the status word */ | |
589 | lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof (uint32_t)); | |
590 | ||
591 | /* Sanity check to ensure the host owns the mailbox */ | |
592 | if (pmbox->mbxOwner != OWN_HOST) { | |
593 | /* Lets try for a while */ | |
594 | for (i = 0; i < 10240; i++) { | |
595 | /* First copy command data */ | |
596 | lpfc_sli_pcimem_bcopy(mbox, pmbox, | |
597 | sizeof (uint32_t)); | |
598 | if (pmbox->mbxOwner == OWN_HOST) | |
599 | goto mbout; | |
600 | } | |
601 | /* Stray Mailbox Interrupt, mbxCommand <cmd> mbxStatus | |
602 | <status> */ | |
603 | lpfc_printf_log(phba, | |
604 | KERN_ERR, | |
605 | LOG_MBOX | LOG_SLI, | |
606 | "%d:0304 Stray Mailbox Interrupt " | |
607 | "mbxCommand x%x mbxStatus x%x\n", | |
608 | phba->brd_no, | |
609 | pmbox->mbxCommand, | |
610 | pmbox->mbxStatus); | |
611 | ||
612 | spin_lock_irq(phba->host->host_lock); | |
613 | phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE; | |
614 | spin_unlock_irq(phba->host->host_lock); | |
615 | return (1); | |
616 | } | |
617 | ||
618 | mbout: | |
619 | del_timer_sync(&phba->sli.mbox_tmo); | |
620 | phba->work_hba_events &= ~WORKER_MBOX_TMO; | |
621 | ||
622 | /* | |
623 | * It is a fatal error if unknown mbox command completion. | |
624 | */ | |
625 | if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) == | |
626 | MBX_SHUTDOWN) { | |
627 | ||
628 | /* Unknow mailbox command compl */ | |
629 | lpfc_printf_log(phba, | |
630 | KERN_ERR, | |
631 | LOG_MBOX | LOG_SLI, | |
632 | "%d:0323 Unknown Mailbox command %x Cmpl\n", | |
633 | phba->brd_no, | |
634 | pmbox->mbxCommand); | |
635 | phba->hba_state = LPFC_HBA_ERROR; | |
636 | phba->work_hs = HS_FFER3; | |
637 | lpfc_handle_eratt(phba); | |
638 | return (0); | |
639 | } | |
640 | ||
641 | phba->sli.mbox_active = NULL; | |
642 | if (pmbox->mbxStatus) { | |
643 | phba->sli.slistat.mbox_stat_err++; | |
644 | if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) { | |
645 | /* Mbox cmd cmpl error - RETRYing */ | |
646 | lpfc_printf_log(phba, | |
647 | KERN_INFO, | |
648 | LOG_MBOX | LOG_SLI, | |
649 | "%d:0305 Mbox cmd cmpl error - " | |
650 | "RETRYing Data: x%x x%x x%x x%x\n", | |
651 | phba->brd_no, | |
652 | pmbox->mbxCommand, | |
653 | pmbox->mbxStatus, | |
654 | pmbox->un.varWords[0], | |
655 | phba->hba_state); | |
656 | pmbox->mbxStatus = 0; | |
657 | pmbox->mbxOwner = OWN_HOST; | |
658 | spin_lock_irq(phba->host->host_lock); | |
659 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
660 | spin_unlock_irq(phba->host->host_lock); | |
661 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
662 | if (rc == MBX_SUCCESS) | |
663 | return (0); | |
664 | } | |
665 | } | |
666 | ||
667 | /* Mailbox cmd <cmd> Cmpl <cmpl> */ | |
668 | lpfc_printf_log(phba, | |
669 | KERN_INFO, | |
670 | LOG_MBOX | LOG_SLI, | |
671 | "%d:0307 Mailbox cmd x%x Cmpl x%p " | |
672 | "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n", | |
673 | phba->brd_no, | |
674 | pmbox->mbxCommand, | |
675 | pmb->mbox_cmpl, | |
676 | *((uint32_t *) pmbox), | |
677 | pmbox->un.varWords[0], | |
678 | pmbox->un.varWords[1], | |
679 | pmbox->un.varWords[2], | |
680 | pmbox->un.varWords[3], | |
681 | pmbox->un.varWords[4], | |
682 | pmbox->un.varWords[5], | |
683 | pmbox->un.varWords[6], | |
684 | pmbox->un.varWords[7]); | |
685 | ||
686 | if (pmb->mbox_cmpl) { | |
687 | lpfc_sli_pcimem_bcopy(mbox, pmbox, MAILBOX_CMD_SIZE); | |
688 | pmb->mbox_cmpl(phba,pmb); | |
689 | } | |
690 | } | |
691 | ||
692 | ||
693 | do { | |
694 | process_next = 0; /* by default don't loop */ | |
695 | spin_lock_irq(phba->host->host_lock); | |
696 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
697 | ||
698 | /* Process next mailbox command if there is one */ | |
699 | if ((pmb = lpfc_mbox_get(phba))) { | |
700 | spin_unlock_irq(phba->host->host_lock); | |
701 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
702 | if (rc == MBX_NOT_FINISHED) { | |
703 | pmb->mb.mbxStatus = MBX_NOT_FINISHED; | |
704 | pmb->mbox_cmpl(phba,pmb); | |
705 | process_next = 1; | |
706 | continue; /* loop back */ | |
707 | } | |
708 | } else { | |
709 | spin_unlock_irq(phba->host->host_lock); | |
710 | /* Turn on IOCB processing */ | |
711 | for (i = 0; i < phba->sli.num_rings; i++) { | |
712 | lpfc_sli_turn_on_ring(phba, i); | |
713 | } | |
714 | ||
715 | /* Free any lpfc_dmabuf's waiting for mbox cmd cmpls */ | |
716 | while (!list_empty(&phba->freebufList)) { | |
717 | struct lpfc_dmabuf *mp; | |
718 | ||
719 | mp = NULL; | |
720 | list_remove_head((&phba->freebufList), | |
721 | mp, | |
722 | struct lpfc_dmabuf, | |
723 | list); | |
724 | if (mp) { | |
725 | lpfc_mbuf_free(phba, mp->virt, | |
726 | mp->phys); | |
727 | kfree(mp); | |
728 | } | |
729 | } | |
730 | } | |
731 | ||
732 | } while (process_next); | |
733 | ||
734 | return (0); | |
735 | } | |
736 | static int | |
737 | lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
738 | struct lpfc_iocbq *saveq) | |
739 | { | |
740 | IOCB_t * irsp; | |
741 | WORD5 * w5p; | |
742 | uint32_t Rctl, Type; | |
743 | uint32_t match, i; | |
744 | ||
745 | match = 0; | |
746 | irsp = &(saveq->iocb); | |
747 | if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) | |
748 | || (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX)) { | |
749 | Rctl = FC_ELS_REQ; | |
750 | Type = FC_ELS_DATA; | |
751 | } else { | |
752 | w5p = | |
753 | (WORD5 *) & (saveq->iocb.un. | |
754 | ulpWord[5]); | |
755 | Rctl = w5p->hcsw.Rctl; | |
756 | Type = w5p->hcsw.Type; | |
757 | ||
758 | /* Firmware Workaround */ | |
759 | if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) && | |
760 | (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX)) { | |
761 | Rctl = FC_ELS_REQ; | |
762 | Type = FC_ELS_DATA; | |
763 | w5p->hcsw.Rctl = Rctl; | |
764 | w5p->hcsw.Type = Type; | |
765 | } | |
766 | } | |
767 | /* unSolicited Responses */ | |
768 | if (pring->prt[0].profile) { | |
cf5bf97e JW |
769 | if (pring->prt[0].lpfc_sli_rcv_unsol_event) |
770 | (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring, | |
771 | saveq); | |
dea3101e | 772 | match = 1; |
773 | } else { | |
774 | /* We must search, based on rctl / type | |
775 | for the right routine */ | |
776 | for (i = 0; i < pring->num_mask; | |
777 | i++) { | |
778 | if ((pring->prt[i].rctl == | |
779 | Rctl) | |
780 | && (pring->prt[i]. | |
781 | type == Type)) { | |
cf5bf97e JW |
782 | if (pring->prt[i].lpfc_sli_rcv_unsol_event) |
783 | (pring->prt[i].lpfc_sli_rcv_unsol_event) | |
784 | (phba, pring, saveq); | |
dea3101e | 785 | match = 1; |
786 | break; | |
787 | } | |
788 | } | |
789 | } | |
790 | if (match == 0) { | |
791 | /* Unexpected Rctl / Type received */ | |
792 | /* Ring <ringno> handler: unexpected | |
793 | Rctl <Rctl> Type <Type> received */ | |
794 | lpfc_printf_log(phba, | |
795 | KERN_WARNING, | |
796 | LOG_SLI, | |
797 | "%d:0313 Ring %d handler: unexpected Rctl x%x " | |
798 | "Type x%x received \n", | |
799 | phba->brd_no, | |
800 | pring->ringno, | |
801 | Rctl, | |
802 | Type); | |
803 | } | |
804 | return(1); | |
805 | } | |
806 | ||
807 | static struct lpfc_iocbq * | |
604a3e30 JB |
808 | lpfc_sli_iocbq_lookup(struct lpfc_hba * phba, |
809 | struct lpfc_sli_ring * pring, | |
810 | struct lpfc_iocbq * prspiocb) | |
dea3101e | 811 | { |
dea3101e | 812 | struct lpfc_iocbq *cmd_iocb = NULL; |
813 | uint16_t iotag; | |
814 | ||
604a3e30 JB |
815 | iotag = prspiocb->iocb.ulpIoTag; |
816 | ||
817 | if (iotag != 0 && iotag <= phba->sli.last_iotag) { | |
818 | cmd_iocb = phba->sli.iocbq_lookup[iotag]; | |
819 | list_del(&cmd_iocb->list); | |
820 | pring->txcmplq_cnt--; | |
821 | return cmd_iocb; | |
dea3101e | 822 | } |
823 | ||
dea3101e | 824 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
604a3e30 JB |
825 | "%d:0317 iotag x%x is out off " |
826 | "range: max iotag x%x wd0 x%x\n", | |
827 | phba->brd_no, iotag, | |
828 | phba->sli.last_iotag, | |
829 | *(((uint32_t *) &prspiocb->iocb) + 7)); | |
dea3101e | 830 | return NULL; |
831 | } | |
832 | ||
833 | static int | |
834 | lpfc_sli_process_sol_iocb(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, | |
835 | struct lpfc_iocbq *saveq) | |
836 | { | |
837 | struct lpfc_iocbq * cmdiocbp; | |
838 | int rc = 1; | |
839 | unsigned long iflag; | |
840 | ||
841 | /* Based on the iotag field, get the cmd IOCB from the txcmplq */ | |
842 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
604a3e30 | 843 | cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq); |
dea3101e | 844 | if (cmdiocbp) { |
845 | if (cmdiocbp->iocb_cmpl) { | |
846 | /* | |
847 | * Post all ELS completions to the worker thread. | |
848 | * All other are passed to the completion callback. | |
849 | */ | |
850 | if (pring->ringno == LPFC_ELS_RING) { | |
851 | spin_unlock_irqrestore(phba->host->host_lock, | |
852 | iflag); | |
853 | (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq); | |
854 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
855 | } | |
856 | else { | |
dea3101e | 857 | spin_unlock_irqrestore(phba->host->host_lock, |
858 | iflag); | |
859 | (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq); | |
860 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
861 | } | |
604a3e30 JB |
862 | } else |
863 | lpfc_sli_release_iocbq(phba, cmdiocbp); | |
dea3101e | 864 | } else { |
865 | /* | |
866 | * Unknown initiating command based on the response iotag. | |
867 | * This could be the case on the ELS ring because of | |
868 | * lpfc_els_abort(). | |
869 | */ | |
870 | if (pring->ringno != LPFC_ELS_RING) { | |
871 | /* | |
872 | * Ring <ringno> handler: unexpected completion IoTag | |
873 | * <IoTag> | |
874 | */ | |
875 | lpfc_printf_log(phba, | |
876 | KERN_WARNING, | |
877 | LOG_SLI, | |
878 | "%d:0322 Ring %d handler: unexpected " | |
879 | "completion IoTag x%x Data: x%x x%x x%x x%x\n", | |
880 | phba->brd_no, | |
881 | pring->ringno, | |
882 | saveq->iocb.ulpIoTag, | |
883 | saveq->iocb.ulpStatus, | |
884 | saveq->iocb.un.ulpWord[4], | |
885 | saveq->iocb.ulpCommand, | |
886 | saveq->iocb.ulpContext); | |
887 | } | |
888 | } | |
68876920 | 889 | |
dea3101e | 890 | spin_unlock_irqrestore(phba->host->host_lock, iflag); |
891 | return rc; | |
892 | } | |
893 | ||
875fbdfe JSEC |
894 | static void lpfc_sli_rsp_pointers_error(struct lpfc_hba * phba, |
895 | struct lpfc_sli_ring * pring) | |
896 | { | |
897 | struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno]; | |
898 | /* | |
899 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger then | |
900 | * rsp ring <portRspMax> | |
901 | */ | |
902 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
903 | "%d:0312 Ring %d handler: portRspPut %d " | |
904 | "is bigger then rsp ring %d\n", | |
905 | phba->brd_no, pring->ringno, | |
906 | le32_to_cpu(pgp->rspPutInx), | |
907 | pring->numRiocb); | |
908 | ||
909 | phba->hba_state = LPFC_HBA_ERROR; | |
910 | ||
911 | /* | |
912 | * All error attention handlers are posted to | |
913 | * worker thread | |
914 | */ | |
915 | phba->work_ha |= HA_ERATT; | |
916 | phba->work_hs = HS_FFER3; | |
917 | if (phba->work_wait) | |
918 | wake_up(phba->work_wait); | |
919 | ||
920 | return; | |
921 | } | |
922 | ||
923 | void lpfc_sli_poll_fcp_ring(struct lpfc_hba * phba) | |
924 | { | |
925 | struct lpfc_sli * psli = &phba->sli; | |
926 | struct lpfc_sli_ring * pring = &psli->ring[LPFC_FCP_RING]; | |
927 | IOCB_t *irsp = NULL; | |
928 | IOCB_t *entry = NULL; | |
929 | struct lpfc_iocbq *cmdiocbq = NULL; | |
930 | struct lpfc_iocbq rspiocbq; | |
931 | struct lpfc_pgp *pgp; | |
932 | uint32_t status; | |
933 | uint32_t portRspPut, portRspMax; | |
934 | int type; | |
935 | uint32_t rsp_cmpl = 0; | |
936 | void __iomem *to_slim; | |
937 | uint32_t ha_copy; | |
938 | ||
939 | pring->stats.iocb_event++; | |
940 | ||
941 | /* The driver assumes SLI-2 mode */ | |
942 | pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno]; | |
943 | ||
944 | /* | |
945 | * The next available response entry should never exceed the maximum | |
946 | * entries. If it does, treat it as an adapter hardware error. | |
947 | */ | |
948 | portRspMax = pring->numRiocb; | |
949 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
950 | if (unlikely(portRspPut >= portRspMax)) { | |
951 | lpfc_sli_rsp_pointers_error(phba, pring); | |
952 | return; | |
953 | } | |
954 | ||
955 | rmb(); | |
956 | while (pring->rspidx != portRspPut) { | |
957 | ||
958 | entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx); | |
959 | ||
960 | if (++pring->rspidx >= portRspMax) | |
961 | pring->rspidx = 0; | |
962 | ||
963 | lpfc_sli_pcimem_bcopy((uint32_t *) entry, | |
964 | (uint32_t *) &rspiocbq.iocb, | |
965 | sizeof (IOCB_t)); | |
966 | irsp = &rspiocbq.iocb; | |
967 | type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); | |
968 | pring->stats.iocb_rsp++; | |
969 | rsp_cmpl++; | |
970 | ||
971 | if (unlikely(irsp->ulpStatus)) { | |
972 | /* Rsp ring <ringno> error: IOCB */ | |
973 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
974 | "%d:0326 Rsp Ring %d error: IOCB Data: " | |
975 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", | |
976 | phba->brd_no, pring->ringno, | |
977 | irsp->un.ulpWord[0], | |
978 | irsp->un.ulpWord[1], | |
979 | irsp->un.ulpWord[2], | |
980 | irsp->un.ulpWord[3], | |
981 | irsp->un.ulpWord[4], | |
982 | irsp->un.ulpWord[5], | |
983 | *(((uint32_t *) irsp) + 6), | |
984 | *(((uint32_t *) irsp) + 7)); | |
985 | } | |
986 | ||
987 | switch (type) { | |
988 | case LPFC_ABORT_IOCB: | |
989 | case LPFC_SOL_IOCB: | |
990 | /* | |
991 | * Idle exchange closed via ABTS from port. No iocb | |
992 | * resources need to be recovered. | |
993 | */ | |
994 | if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { | |
995 | printk(KERN_INFO "%s: IOCB cmd 0x%x processed." | |
996 | " Skipping completion\n", __FUNCTION__, | |
997 | irsp->ulpCommand); | |
998 | break; | |
999 | } | |
1000 | ||
1001 | cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, | |
1002 | &rspiocbq); | |
1003 | if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { | |
1004 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, | |
1005 | &rspiocbq); | |
1006 | } | |
1007 | break; | |
1008 | default: | |
1009 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
1010 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
1011 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
1012 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
1013 | MAX_MSG_DATA); | |
1014 | dev_warn(&((phba->pcidev)->dev), "lpfc%d: %s", | |
1015 | phba->brd_no, adaptermsg); | |
1016 | } else { | |
1017 | /* Unknown IOCB command */ | |
1018 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
1019 | "%d:0321 Unknown IOCB command " | |
1020 | "Data: x%x, x%x x%x x%x x%x\n", | |
1021 | phba->brd_no, type, | |
1022 | irsp->ulpCommand, | |
1023 | irsp->ulpStatus, | |
1024 | irsp->ulpIoTag, | |
1025 | irsp->ulpContext); | |
1026 | } | |
1027 | break; | |
1028 | } | |
1029 | ||
1030 | /* | |
1031 | * The response IOCB has been processed. Update the ring | |
1032 | * pointer in SLIM. If the port response put pointer has not | |
1033 | * been updated, sync the pgp->rspPutInx and fetch the new port | |
1034 | * response put pointer. | |
1035 | */ | |
1036 | to_slim = phba->MBslimaddr + | |
1037 | (SLIMOFF + (pring->ringno * 2) + 1) * 4; | |
1038 | writeb(pring->rspidx, to_slim); | |
1039 | ||
1040 | if (pring->rspidx == portRspPut) | |
1041 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1042 | } | |
1043 | ||
1044 | ha_copy = readl(phba->HAregaddr); | |
1045 | ha_copy >>= (LPFC_FCP_RING * 4); | |
1046 | ||
1047 | if ((rsp_cmpl > 0) && (ha_copy & HA_R0RE_REQ)) { | |
1048 | pring->stats.iocb_rsp_full++; | |
1049 | status = ((CA_R0ATT | CA_R0RE_RSP) << (LPFC_FCP_RING * 4)); | |
1050 | writel(status, phba->CAregaddr); | |
1051 | readl(phba->CAregaddr); | |
1052 | } | |
1053 | if ((ha_copy & HA_R0CE_RSP) && | |
1054 | (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
1055 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
1056 | pring->stats.iocb_cmd_empty++; | |
1057 | ||
1058 | /* Force update of the local copy of cmdGetInx */ | |
1059 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
1060 | lpfc_sli_resume_iocb(phba, pring); | |
1061 | ||
1062 | if ((pring->lpfc_sli_cmd_available)) | |
1063 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
1064 | ||
1065 | } | |
1066 | ||
1067 | return; | |
1068 | } | |
1069 | ||
dea3101e | 1070 | /* |
1071 | * This routine presumes LPFC_FCP_RING handling and doesn't bother | |
1072 | * to check it explicitly. | |
1073 | */ | |
1074 | static int | |
1075 | lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba, | |
1076 | struct lpfc_sli_ring * pring, uint32_t mask) | |
1077 | { | |
4cc2da1d | 1078 | struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno]; |
dea3101e | 1079 | IOCB_t *irsp = NULL; |
87f6eaff | 1080 | IOCB_t *entry = NULL; |
dea3101e | 1081 | struct lpfc_iocbq *cmdiocbq = NULL; |
1082 | struct lpfc_iocbq rspiocbq; | |
dea3101e | 1083 | uint32_t status; |
1084 | uint32_t portRspPut, portRspMax; | |
1085 | int rc = 1; | |
1086 | lpfc_iocb_type type; | |
1087 | unsigned long iflag; | |
1088 | uint32_t rsp_cmpl = 0; | |
1089 | void __iomem *to_slim; | |
1090 | ||
1091 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
1092 | pring->stats.iocb_event++; | |
1093 | ||
dea3101e | 1094 | /* |
1095 | * The next available response entry should never exceed the maximum | |
1096 | * entries. If it does, treat it as an adapter hardware error. | |
1097 | */ | |
1098 | portRspMax = pring->numRiocb; | |
1099 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1100 | if (unlikely(portRspPut >= portRspMax)) { | |
875fbdfe | 1101 | lpfc_sli_rsp_pointers_error(phba, pring); |
dea3101e | 1102 | spin_unlock_irqrestore(phba->host->host_lock, iflag); |
1103 | return 1; | |
1104 | } | |
1105 | ||
1106 | rmb(); | |
1107 | while (pring->rspidx != portRspPut) { | |
87f6eaff JSEC |
1108 | /* |
1109 | * Fetch an entry off the ring and copy it into a local data | |
1110 | * structure. The copy involves a byte-swap since the | |
1111 | * network byte order and pci byte orders are different. | |
1112 | */ | |
4a0dfcde | 1113 | entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx); |
875fbdfe JSEC |
1114 | |
1115 | if (++pring->rspidx >= portRspMax) | |
1116 | pring->rspidx = 0; | |
1117 | ||
87f6eaff JSEC |
1118 | lpfc_sli_pcimem_bcopy((uint32_t *) entry, |
1119 | (uint32_t *) &rspiocbq.iocb, | |
1120 | sizeof (IOCB_t)); | |
1121 | irsp = &rspiocbq.iocb; | |
1122 | ||
dea3101e | 1123 | type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); |
1124 | pring->stats.iocb_rsp++; | |
1125 | rsp_cmpl++; | |
1126 | ||
1127 | if (unlikely(irsp->ulpStatus)) { | |
1128 | /* Rsp ring <ringno> error: IOCB */ | |
1129 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
1130 | "%d:0326 Rsp Ring %d error: IOCB Data: " | |
1131 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", | |
1132 | phba->brd_no, pring->ringno, | |
1133 | irsp->un.ulpWord[0], irsp->un.ulpWord[1], | |
1134 | irsp->un.ulpWord[2], irsp->un.ulpWord[3], | |
1135 | irsp->un.ulpWord[4], irsp->un.ulpWord[5], | |
1136 | *(((uint32_t *) irsp) + 6), | |
1137 | *(((uint32_t *) irsp) + 7)); | |
1138 | } | |
1139 | ||
1140 | switch (type) { | |
1141 | case LPFC_ABORT_IOCB: | |
1142 | case LPFC_SOL_IOCB: | |
1143 | /* | |
1144 | * Idle exchange closed via ABTS from port. No iocb | |
1145 | * resources need to be recovered. | |
1146 | */ | |
1147 | if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { | |
1148 | printk(KERN_INFO "%s: IOCB cmd 0x%x processed. " | |
1149 | "Skipping completion\n", __FUNCTION__, | |
1150 | irsp->ulpCommand); | |
1151 | break; | |
1152 | } | |
1153 | ||
604a3e30 JB |
1154 | cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, |
1155 | &rspiocbq); | |
dea3101e | 1156 | if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { |
1157 | spin_unlock_irqrestore( | |
1158 | phba->host->host_lock, iflag); | |
1159 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, | |
1160 | &rspiocbq); | |
1161 | spin_lock_irqsave(phba->host->host_lock, | |
1162 | iflag); | |
1163 | } | |
1164 | break; | |
1165 | default: | |
1166 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
1167 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
1168 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
1169 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
1170 | MAX_MSG_DATA); | |
1171 | dev_warn(&((phba->pcidev)->dev), "lpfc%d: %s", | |
1172 | phba->brd_no, adaptermsg); | |
1173 | } else { | |
1174 | /* Unknown IOCB command */ | |
1175 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
1176 | "%d:0321 Unknown IOCB command " | |
1177 | "Data: x%x, x%x x%x x%x x%x\n", | |
1178 | phba->brd_no, type, irsp->ulpCommand, | |
1179 | irsp->ulpStatus, irsp->ulpIoTag, | |
1180 | irsp->ulpContext); | |
1181 | } | |
1182 | break; | |
1183 | } | |
1184 | ||
1185 | /* | |
1186 | * The response IOCB has been processed. Update the ring | |
1187 | * pointer in SLIM. If the port response put pointer has not | |
1188 | * been updated, sync the pgp->rspPutInx and fetch the new port | |
1189 | * response put pointer. | |
1190 | */ | |
dea3101e | 1191 | to_slim = phba->MBslimaddr + |
1192 | (SLIMOFF + (pring->ringno * 2) + 1) * 4; | |
f91b392c | 1193 | writel(pring->rspidx, to_slim); |
dea3101e | 1194 | |
1195 | if (pring->rspidx == portRspPut) | |
1196 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1197 | } | |
1198 | ||
1199 | if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) { | |
1200 | pring->stats.iocb_rsp_full++; | |
1201 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
1202 | writel(status, phba->CAregaddr); | |
1203 | readl(phba->CAregaddr); | |
1204 | } | |
1205 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
1206 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
1207 | pring->stats.iocb_cmd_empty++; | |
1208 | ||
1209 | /* Force update of the local copy of cmdGetInx */ | |
1210 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
1211 | lpfc_sli_resume_iocb(phba, pring); | |
1212 | ||
1213 | if ((pring->lpfc_sli_cmd_available)) | |
1214 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
1215 | ||
1216 | } | |
1217 | ||
1218 | spin_unlock_irqrestore(phba->host->host_lock, iflag); | |
1219 | return rc; | |
1220 | } | |
1221 | ||
1222 | ||
1223 | int | |
1224 | lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba, | |
1225 | struct lpfc_sli_ring * pring, uint32_t mask) | |
1226 | { | |
1227 | IOCB_t *entry; | |
1228 | IOCB_t *irsp = NULL; | |
1229 | struct lpfc_iocbq *rspiocbp = NULL; | |
1230 | struct lpfc_iocbq *next_iocb; | |
1231 | struct lpfc_iocbq *cmdiocbp; | |
1232 | struct lpfc_iocbq *saveq; | |
4cc2da1d | 1233 | struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno]; |
dea3101e | 1234 | uint8_t iocb_cmd_type; |
1235 | lpfc_iocb_type type; | |
1236 | uint32_t status, free_saveq; | |
1237 | uint32_t portRspPut, portRspMax; | |
1238 | int rc = 1; | |
1239 | unsigned long iflag; | |
1240 | void __iomem *to_slim; | |
1241 | ||
1242 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
1243 | pring->stats.iocb_event++; | |
1244 | ||
dea3101e | 1245 | /* |
1246 | * The next available response entry should never exceed the maximum | |
1247 | * entries. If it does, treat it as an adapter hardware error. | |
1248 | */ | |
1249 | portRspMax = pring->numRiocb; | |
1250 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1251 | if (portRspPut >= portRspMax) { | |
1252 | /* | |
1253 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger then | |
1254 | * rsp ring <portRspMax> | |
1255 | */ | |
1256 | lpfc_printf_log(phba, | |
1257 | KERN_ERR, | |
1258 | LOG_SLI, | |
1259 | "%d:0312 Ring %d handler: portRspPut %d " | |
1260 | "is bigger then rsp ring %d\n", | |
1261 | phba->brd_no, | |
1262 | pring->ringno, portRspPut, portRspMax); | |
1263 | ||
1264 | phba->hba_state = LPFC_HBA_ERROR; | |
1265 | spin_unlock_irqrestore(phba->host->host_lock, iflag); | |
1266 | ||
1267 | phba->work_hs = HS_FFER3; | |
1268 | lpfc_handle_eratt(phba); | |
1269 | ||
1270 | return 1; | |
1271 | } | |
1272 | ||
1273 | rmb(); | |
dea3101e | 1274 | while (pring->rspidx != portRspPut) { |
1275 | /* | |
1276 | * Build a completion list and call the appropriate handler. | |
1277 | * The process is to get the next available response iocb, get | |
1278 | * a free iocb from the list, copy the response data into the | |
1279 | * free iocb, insert to the continuation list, and update the | |
1280 | * next response index to slim. This process makes response | |
1281 | * iocb's in the ring available to DMA as fast as possible but | |
1282 | * pays a penalty for a copy operation. Since the iocb is | |
1283 | * only 32 bytes, this penalty is considered small relative to | |
1284 | * the PCI reads for register values and a slim write. When | |
1285 | * the ulpLe field is set, the entire Command has been | |
1286 | * received. | |
1287 | */ | |
1288 | entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx); | |
0bd4ca25 | 1289 | rspiocbp = lpfc_sli_get_iocbq(phba); |
dea3101e | 1290 | if (rspiocbp == NULL) { |
1291 | printk(KERN_ERR "%s: out of buffers! Failing " | |
1292 | "completion.\n", __FUNCTION__); | |
1293 | break; | |
1294 | } | |
1295 | ||
1296 | lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb, sizeof (IOCB_t)); | |
1297 | irsp = &rspiocbp->iocb; | |
1298 | ||
1299 | if (++pring->rspidx >= portRspMax) | |
1300 | pring->rspidx = 0; | |
1301 | ||
1302 | to_slim = phba->MBslimaddr + (SLIMOFF + (pring->ringno * 2) | |
1303 | + 1) * 4; | |
f91b392c | 1304 | writel(pring->rspidx, to_slim); |
dea3101e | 1305 | |
1306 | if (list_empty(&(pring->iocb_continueq))) { | |
1307 | list_add(&rspiocbp->list, &(pring->iocb_continueq)); | |
1308 | } else { | |
1309 | list_add_tail(&rspiocbp->list, | |
1310 | &(pring->iocb_continueq)); | |
1311 | } | |
1312 | ||
1313 | pring->iocb_continueq_cnt++; | |
1314 | if (irsp->ulpLe) { | |
1315 | /* | |
1316 | * By default, the driver expects to free all resources | |
1317 | * associated with this iocb completion. | |
1318 | */ | |
1319 | free_saveq = 1; | |
1320 | saveq = list_get_first(&pring->iocb_continueq, | |
1321 | struct lpfc_iocbq, list); | |
1322 | irsp = &(saveq->iocb); | |
1323 | list_del_init(&pring->iocb_continueq); | |
1324 | pring->iocb_continueq_cnt = 0; | |
1325 | ||
1326 | pring->stats.iocb_rsp++; | |
1327 | ||
1328 | if (irsp->ulpStatus) { | |
1329 | /* Rsp ring <ringno> error: IOCB */ | |
1330 | lpfc_printf_log(phba, | |
1331 | KERN_WARNING, | |
1332 | LOG_SLI, | |
1333 | "%d:0328 Rsp Ring %d error: IOCB Data: " | |
1334 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", | |
1335 | phba->brd_no, | |
1336 | pring->ringno, | |
1337 | irsp->un.ulpWord[0], | |
1338 | irsp->un.ulpWord[1], | |
1339 | irsp->un.ulpWord[2], | |
1340 | irsp->un.ulpWord[3], | |
1341 | irsp->un.ulpWord[4], | |
1342 | irsp->un.ulpWord[5], | |
1343 | *(((uint32_t *) irsp) + 6), | |
1344 | *(((uint32_t *) irsp) + 7)); | |
1345 | } | |
1346 | ||
1347 | /* | |
1348 | * Fetch the IOCB command type and call the correct | |
1349 | * completion routine. Solicited and Unsolicited | |
1350 | * IOCBs on the ELS ring get freed back to the | |
1351 | * lpfc_iocb_list by the discovery kernel thread. | |
1352 | */ | |
1353 | iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK; | |
1354 | type = lpfc_sli_iocb_cmd_type(iocb_cmd_type); | |
1355 | if (type == LPFC_SOL_IOCB) { | |
1356 | spin_unlock_irqrestore(phba->host->host_lock, | |
1357 | iflag); | |
1358 | rc = lpfc_sli_process_sol_iocb(phba, pring, | |
1359 | saveq); | |
1360 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
1361 | } else if (type == LPFC_UNSOL_IOCB) { | |
1362 | spin_unlock_irqrestore(phba->host->host_lock, | |
1363 | iflag); | |
1364 | rc = lpfc_sli_process_unsol_iocb(phba, pring, | |
1365 | saveq); | |
1366 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
1367 | } else if (type == LPFC_ABORT_IOCB) { | |
1368 | if ((irsp->ulpCommand != CMD_XRI_ABORTED_CX) && | |
1369 | ((cmdiocbp = | |
604a3e30 JB |
1370 | lpfc_sli_iocbq_lookup(phba, pring, |
1371 | saveq)))) { | |
dea3101e | 1372 | /* Call the specified completion |
1373 | routine */ | |
1374 | if (cmdiocbp->iocb_cmpl) { | |
1375 | spin_unlock_irqrestore( | |
1376 | phba->host->host_lock, | |
1377 | iflag); | |
1378 | (cmdiocbp->iocb_cmpl) (phba, | |
1379 | cmdiocbp, saveq); | |
1380 | spin_lock_irqsave( | |
1381 | phba->host->host_lock, | |
1382 | iflag); | |
604a3e30 JB |
1383 | } else |
1384 | lpfc_sli_release_iocbq(phba, | |
1385 | cmdiocbp); | |
dea3101e | 1386 | } |
1387 | } else if (type == LPFC_UNKNOWN_IOCB) { | |
1388 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
1389 | ||
1390 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
1391 | ||
1392 | memset(adaptermsg, 0, | |
1393 | LPFC_MAX_ADPTMSG); | |
1394 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
1395 | MAX_MSG_DATA); | |
1396 | dev_warn(&((phba->pcidev)->dev), | |
1397 | "lpfc%d: %s", | |
1398 | phba->brd_no, adaptermsg); | |
1399 | } else { | |
1400 | /* Unknown IOCB command */ | |
1401 | lpfc_printf_log(phba, | |
1402 | KERN_ERR, | |
1403 | LOG_SLI, | |
1404 | "%d:0321 Unknown IOCB command " | |
1405 | "Data: x%x x%x x%x x%x\n", | |
1406 | phba->brd_no, | |
1407 | irsp->ulpCommand, | |
1408 | irsp->ulpStatus, | |
1409 | irsp->ulpIoTag, | |
1410 | irsp->ulpContext); | |
1411 | } | |
1412 | } | |
1413 | ||
1414 | if (free_saveq) { | |
1415 | if (!list_empty(&saveq->list)) { | |
1416 | list_for_each_entry_safe(rspiocbp, | |
1417 | next_iocb, | |
1418 | &saveq->list, | |
1419 | list) { | |
604a3e30 JB |
1420 | lpfc_sli_release_iocbq(phba, |
1421 | rspiocbp); | |
dea3101e | 1422 | } |
1423 | } | |
1424 | ||
604a3e30 | 1425 | lpfc_sli_release_iocbq(phba, saveq); |
dea3101e | 1426 | } |
1427 | } | |
1428 | ||
1429 | /* | |
1430 | * If the port response put pointer has not been updated, sync | |
1431 | * the pgp->rspPutInx in the MAILBOX_tand fetch the new port | |
1432 | * response put pointer. | |
1433 | */ | |
1434 | if (pring->rspidx == portRspPut) { | |
1435 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1436 | } | |
1437 | } /* while (pring->rspidx != portRspPut) */ | |
1438 | ||
1439 | if ((rspiocbp != 0) && (mask & HA_R0RE_REQ)) { | |
1440 | /* At least one response entry has been freed */ | |
1441 | pring->stats.iocb_rsp_full++; | |
1442 | /* SET RxRE_RSP in Chip Att register */ | |
1443 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
1444 | writel(status, phba->CAregaddr); | |
1445 | readl(phba->CAregaddr); /* flush */ | |
1446 | } | |
1447 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
1448 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
1449 | pring->stats.iocb_cmd_empty++; | |
1450 | ||
1451 | /* Force update of the local copy of cmdGetInx */ | |
1452 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
1453 | lpfc_sli_resume_iocb(phba, pring); | |
1454 | ||
1455 | if ((pring->lpfc_sli_cmd_available)) | |
1456 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
1457 | ||
1458 | } | |
1459 | ||
1460 | spin_unlock_irqrestore(phba->host->host_lock, iflag); | |
1461 | return rc; | |
1462 | } | |
1463 | ||
1464 | int | |
1465 | lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
1466 | { | |
1467 | struct lpfc_iocbq *iocb, *next_iocb; | |
1468 | IOCB_t *icmd = NULL, *cmd = NULL; | |
1469 | int errcnt; | |
dea3101e | 1470 | |
1471 | errcnt = 0; | |
1472 | ||
1473 | /* Error everything on txq and txcmplq | |
1474 | * First do the txq. | |
1475 | */ | |
1476 | spin_lock_irq(phba->host->host_lock); | |
1477 | list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { | |
1478 | list_del_init(&iocb->list); | |
1479 | if (iocb->iocb_cmpl) { | |
1480 | icmd = &iocb->iocb; | |
1481 | icmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
1482 | icmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
1483 | spin_unlock_irq(phba->host->host_lock); | |
1484 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
1485 | spin_lock_irq(phba->host->host_lock); | |
604a3e30 JB |
1486 | } else |
1487 | lpfc_sli_release_iocbq(phba, iocb); | |
dea3101e | 1488 | } |
1489 | pring->txq_cnt = 0; | |
1490 | INIT_LIST_HEAD(&(pring->txq)); | |
1491 | ||
1492 | /* Next issue ABTS for everything on the txcmplq */ | |
1493 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { | |
1494 | cmd = &iocb->iocb; | |
1495 | ||
1496 | /* | |
604a3e30 | 1497 | * Imediate abort of IOCB, deque and call compl |
dea3101e | 1498 | */ |
dea3101e | 1499 | |
1500 | list_del_init(&iocb->list); | |
1501 | pring->txcmplq_cnt--; | |
1502 | ||
1503 | if (iocb->iocb_cmpl) { | |
1504 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
1505 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
1506 | spin_unlock_irq(phba->host->host_lock); | |
1507 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
1508 | spin_lock_irq(phba->host->host_lock); | |
604a3e30 JB |
1509 | } else |
1510 | lpfc_sli_release_iocbq(phba, iocb); | |
dea3101e | 1511 | } |
1512 | ||
1513 | INIT_LIST_HEAD(&pring->txcmplq); | |
1514 | pring->txcmplq_cnt = 0; | |
1515 | spin_unlock_irq(phba->host->host_lock); | |
1516 | ||
1517 | return errcnt; | |
1518 | } | |
1519 | ||
41415862 JW |
1520 | int |
1521 | lpfc_sli_brdready(struct lpfc_hba * phba, uint32_t mask) | |
dea3101e | 1522 | { |
41415862 JW |
1523 | uint32_t status; |
1524 | int i = 0; | |
1525 | int retval = 0; | |
dea3101e | 1526 | |
41415862 JW |
1527 | /* Read the HBA Host Status Register */ |
1528 | status = readl(phba->HSregaddr); | |
dea3101e | 1529 | |
41415862 JW |
1530 | /* |
1531 | * Check status register every 100ms for 5 retries, then every | |
1532 | * 500ms for 5, then every 2.5 sec for 5, then reset board and | |
1533 | * every 2.5 sec for 4. | |
1534 | * Break our of the loop if errors occurred during init. | |
1535 | */ | |
1536 | while (((status & mask) != mask) && | |
1537 | !(status & HS_FFERM) && | |
1538 | i++ < 20) { | |
dea3101e | 1539 | |
41415862 JW |
1540 | if (i <= 5) |
1541 | msleep(10); | |
1542 | else if (i <= 10) | |
1543 | msleep(500); | |
1544 | else | |
1545 | msleep(2500); | |
dea3101e | 1546 | |
41415862 JW |
1547 | if (i == 15) { |
1548 | phba->hba_state = LPFC_STATE_UNKNOWN; /* Do post */ | |
1549 | lpfc_sli_brdrestart(phba); | |
1550 | } | |
1551 | /* Read the HBA Host Status Register */ | |
1552 | status = readl(phba->HSregaddr); | |
1553 | } | |
dea3101e | 1554 | |
41415862 JW |
1555 | /* Check to see if any errors occurred during init */ |
1556 | if ((status & HS_FFERM) || (i >= 20)) { | |
1557 | phba->hba_state = LPFC_HBA_ERROR; | |
1558 | retval = 1; | |
dea3101e | 1559 | } |
dea3101e | 1560 | |
41415862 JW |
1561 | return retval; |
1562 | } | |
dea3101e | 1563 | |
41415862 JW |
1564 | int |
1565 | lpfc_sli_brdkill(struct lpfc_hba * phba) | |
1566 | { | |
1567 | struct lpfc_sli *psli; | |
1568 | LPFC_MBOXQ_t *pmb; | |
1569 | uint32_t status; | |
1570 | uint32_t ha_copy; | |
1571 | int retval; | |
1572 | int i = 0; | |
dea3101e | 1573 | |
41415862 | 1574 | psli = &phba->sli; |
dea3101e | 1575 | |
41415862 JW |
1576 | /* Kill HBA */ |
1577 | lpfc_printf_log(phba, | |
1578 | KERN_INFO, | |
1579 | LOG_SLI, | |
1580 | "%d:0329 Kill HBA Data: x%x x%x\n", | |
1581 | phba->brd_no, | |
1582 | phba->hba_state, | |
1583 | psli->sli_flag); | |
1584 | ||
1585 | if ((pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, | |
1586 | GFP_ATOMIC)) == 0) { | |
1587 | return 1; | |
1588 | } | |
1589 | ||
1590 | /* Disable the error attention */ | |
1591 | spin_lock_irq(phba->host->host_lock); | |
1592 | status = readl(phba->HCregaddr); | |
1593 | status &= ~HC_ERINT_ENA; | |
1594 | writel(status, phba->HCregaddr); | |
1595 | readl(phba->HCregaddr); /* flush */ | |
1596 | spin_unlock_irq(phba->host->host_lock); | |
1597 | ||
1598 | lpfc_kill_board(phba, pmb); | |
1599 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
1600 | retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
1601 | ||
1602 | if (retval != MBX_SUCCESS) { | |
1603 | if (retval != MBX_BUSY) | |
1604 | mempool_free(pmb, phba->mbox_mem_pool); | |
1605 | return 1; | |
1606 | } | |
1607 | ||
1608 | mempool_free(pmb, phba->mbox_mem_pool); | |
1609 | ||
1610 | /* There is no completion for a KILL_BOARD mbox cmd. Check for an error | |
1611 | * attention every 100ms for 3 seconds. If we don't get ERATT after | |
1612 | * 3 seconds we still set HBA_ERROR state because the status of the | |
1613 | * board is now undefined. | |
1614 | */ | |
1615 | ha_copy = readl(phba->HAregaddr); | |
1616 | ||
1617 | while ((i++ < 30) && !(ha_copy & HA_ERATT)) { | |
1618 | mdelay(100); | |
1619 | ha_copy = readl(phba->HAregaddr); | |
1620 | } | |
1621 | ||
1622 | del_timer_sync(&psli->mbox_tmo); | |
1623 | ||
1624 | spin_lock_irq(phba->host->host_lock); | |
1625 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
1626 | spin_unlock_irq(phba->host->host_lock); | |
1627 | ||
1628 | psli->mbox_active = NULL; | |
1629 | lpfc_hba_down_post(phba); | |
1630 | phba->hba_state = LPFC_HBA_ERROR; | |
1631 | ||
1632 | return (ha_copy & HA_ERATT ? 0 : 1); | |
dea3101e | 1633 | } |
1634 | ||
41415862 JW |
1635 | int |
1636 | lpfc_sli_brdreset(struct lpfc_hba * phba) | |
dea3101e | 1637 | { |
41415862 | 1638 | struct lpfc_sli *psli; |
dea3101e | 1639 | struct lpfc_sli_ring *pring; |
41415862 | 1640 | uint16_t cfg_value; |
dea3101e | 1641 | int i; |
dea3101e | 1642 | |
41415862 | 1643 | psli = &phba->sli; |
dea3101e | 1644 | |
41415862 JW |
1645 | /* Reset HBA */ |
1646 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
1647 | "%d:0325 Reset HBA Data: x%x x%x\n", phba->brd_no, | |
1648 | phba->hba_state, psli->sli_flag); | |
dea3101e | 1649 | |
1650 | /* perform board reset */ | |
1651 | phba->fc_eventTag = 0; | |
1652 | phba->fc_myDID = 0; | |
41415862 | 1653 | phba->fc_prevDID = 0; |
dea3101e | 1654 | |
41415862 JW |
1655 | psli->sli_flag = 0; |
1656 | ||
1657 | /* Turn off parity checking and serr during the physical reset */ | |
1658 | pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value); | |
1659 | pci_write_config_word(phba->pcidev, PCI_COMMAND, | |
1660 | (cfg_value & | |
1661 | ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR))); | |
1662 | ||
1663 | /* Now toggle INITFF bit in the Host Control Register */ | |
1664 | writel(HC_INITFF, phba->HCregaddr); | |
1665 | mdelay(1); | |
1666 | readl(phba->HCregaddr); /* flush */ | |
1667 | writel(0, phba->HCregaddr); | |
1668 | readl(phba->HCregaddr); /* flush */ | |
1669 | ||
1670 | /* Restore PCI cmd register */ | |
1671 | pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value); | |
dea3101e | 1672 | |
1673 | /* Initialize relevant SLI info */ | |
41415862 JW |
1674 | for (i = 0; i < psli->num_rings; i++) { |
1675 | pring = &psli->ring[i]; | |
dea3101e | 1676 | pring->flag = 0; |
1677 | pring->rspidx = 0; | |
1678 | pring->next_cmdidx = 0; | |
1679 | pring->local_getidx = 0; | |
1680 | pring->cmdidx = 0; | |
1681 | pring->missbufcnt = 0; | |
1682 | } | |
dea3101e | 1683 | |
41415862 JW |
1684 | phba->hba_state = LPFC_WARM_START; |
1685 | return 0; | |
1686 | } | |
1687 | ||
1688 | int | |
1689 | lpfc_sli_brdrestart(struct lpfc_hba * phba) | |
1690 | { | |
1691 | MAILBOX_t *mb; | |
1692 | struct lpfc_sli *psli; | |
1693 | uint16_t skip_post; | |
1694 | volatile uint32_t word0; | |
1695 | void __iomem *to_slim; | |
1696 | ||
1697 | spin_lock_irq(phba->host->host_lock); | |
1698 | ||
1699 | psli = &phba->sli; | |
1700 | ||
1701 | /* Restart HBA */ | |
1702 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
1703 | "%d:0328 Restart HBA Data: x%x x%x\n", phba->brd_no, | |
1704 | phba->hba_state, psli->sli_flag); | |
1705 | ||
1706 | word0 = 0; | |
1707 | mb = (MAILBOX_t *) &word0; | |
1708 | mb->mbxCommand = MBX_RESTART; | |
1709 | mb->mbxHc = 1; | |
1710 | ||
1711 | to_slim = phba->MBslimaddr; | |
1712 | writel(*(uint32_t *) mb, to_slim); | |
1713 | readl(to_slim); /* flush */ | |
1714 | ||
1715 | /* Only skip post after fc_ffinit is completed */ | |
1716 | if (phba->hba_state) { | |
1717 | skip_post = 1; | |
1718 | word0 = 1; /* This is really setting up word1 */ | |
dea3101e | 1719 | } else { |
41415862 JW |
1720 | skip_post = 0; |
1721 | word0 = 0; /* This is really setting up word1 */ | |
dea3101e | 1722 | } |
41415862 JW |
1723 | to_slim = (uint8_t *) phba->MBslimaddr + sizeof (uint32_t); |
1724 | writel(*(uint32_t *) mb, to_slim); | |
1725 | readl(to_slim); /* flush */ | |
dea3101e | 1726 | |
41415862 | 1727 | lpfc_sli_brdreset(phba); |
dea3101e | 1728 | |
41415862 JW |
1729 | phba->hba_state = LPFC_INIT_START; |
1730 | ||
1731 | spin_unlock_irq(phba->host->host_lock); | |
1732 | ||
1733 | if (skip_post) | |
1734 | mdelay(100); | |
1735 | else | |
1736 | mdelay(2000); | |
1737 | ||
1738 | lpfc_hba_down_post(phba); | |
dea3101e | 1739 | |
1740 | return 0; | |
1741 | } | |
1742 | ||
1743 | static int | |
1744 | lpfc_sli_chipset_init(struct lpfc_hba *phba) | |
1745 | { | |
1746 | uint32_t status, i = 0; | |
1747 | ||
1748 | /* Read the HBA Host Status Register */ | |
1749 | status = readl(phba->HSregaddr); | |
1750 | ||
1751 | /* Check status register to see what current state is */ | |
1752 | i = 0; | |
1753 | while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) { | |
1754 | ||
1755 | /* Check every 100ms for 5 retries, then every 500ms for 5, then | |
1756 | * every 2.5 sec for 5, then reset board and every 2.5 sec for | |
1757 | * 4. | |
1758 | */ | |
1759 | if (i++ >= 20) { | |
1760 | /* Adapter failed to init, timeout, status reg | |
1761 | <status> */ | |
1762 | lpfc_printf_log(phba, | |
1763 | KERN_ERR, | |
1764 | LOG_INIT, | |
1765 | "%d:0436 Adapter failed to init, " | |
1766 | "timeout, status reg x%x\n", | |
1767 | phba->brd_no, | |
1768 | status); | |
1769 | phba->hba_state = LPFC_HBA_ERROR; | |
1770 | return -ETIMEDOUT; | |
1771 | } | |
1772 | ||
1773 | /* Check to see if any errors occurred during init */ | |
1774 | if (status & HS_FFERM) { | |
1775 | /* ERROR: During chipset initialization */ | |
1776 | /* Adapter failed to init, chipset, status reg | |
1777 | <status> */ | |
1778 | lpfc_printf_log(phba, | |
1779 | KERN_ERR, | |
1780 | LOG_INIT, | |
1781 | "%d:0437 Adapter failed to init, " | |
1782 | "chipset, status reg x%x\n", | |
1783 | phba->brd_no, | |
1784 | status); | |
1785 | phba->hba_state = LPFC_HBA_ERROR; | |
1786 | return -EIO; | |
1787 | } | |
1788 | ||
1789 | if (i <= 5) { | |
1790 | msleep(10); | |
1791 | } else if (i <= 10) { | |
1792 | msleep(500); | |
1793 | } else { | |
1794 | msleep(2500); | |
1795 | } | |
1796 | ||
1797 | if (i == 15) { | |
41415862 JW |
1798 | phba->hba_state = LPFC_STATE_UNKNOWN; /* Do post */ |
1799 | lpfc_sli_brdrestart(phba); | |
dea3101e | 1800 | } |
1801 | /* Read the HBA Host Status Register */ | |
1802 | status = readl(phba->HSregaddr); | |
1803 | } | |
1804 | ||
1805 | /* Check to see if any errors occurred during init */ | |
1806 | if (status & HS_FFERM) { | |
1807 | /* ERROR: During chipset initialization */ | |
1808 | /* Adapter failed to init, chipset, status reg <status> */ | |
1809 | lpfc_printf_log(phba, | |
1810 | KERN_ERR, | |
1811 | LOG_INIT, | |
1812 | "%d:0438 Adapter failed to init, chipset, " | |
1813 | "status reg x%x\n", | |
1814 | phba->brd_no, | |
1815 | status); | |
1816 | phba->hba_state = LPFC_HBA_ERROR; | |
1817 | return -EIO; | |
1818 | } | |
1819 | ||
1820 | /* Clear all interrupt enable conditions */ | |
1821 | writel(0, phba->HCregaddr); | |
1822 | readl(phba->HCregaddr); /* flush */ | |
1823 | ||
1824 | /* setup host attn register */ | |
1825 | writel(0xffffffff, phba->HAregaddr); | |
1826 | readl(phba->HAregaddr); /* flush */ | |
1827 | return 0; | |
1828 | } | |
1829 | ||
1830 | int | |
1831 | lpfc_sli_hba_setup(struct lpfc_hba * phba) | |
1832 | { | |
1833 | LPFC_MBOXQ_t *pmb; | |
1834 | uint32_t resetcount = 0, rc = 0, done = 0; | |
1835 | ||
1836 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
1837 | if (!pmb) { | |
1838 | phba->hba_state = LPFC_HBA_ERROR; | |
1839 | return -ENOMEM; | |
1840 | } | |
1841 | ||
1842 | while (resetcount < 2 && !done) { | |
41415862 JW |
1843 | phba->hba_state = LPFC_STATE_UNKNOWN; |
1844 | lpfc_sli_brdrestart(phba); | |
dea3101e | 1845 | msleep(2500); |
1846 | rc = lpfc_sli_chipset_init(phba); | |
1847 | if (rc) | |
1848 | break; | |
1849 | ||
1850 | resetcount++; | |
1851 | ||
1852 | /* Call pre CONFIG_PORT mailbox command initialization. A value of 0 | |
1853 | * means the call was successful. Any other nonzero value is a failure, | |
1854 | * but if ERESTART is returned, the driver may reset the HBA and try | |
1855 | * again. | |
1856 | */ | |
1857 | rc = lpfc_config_port_prep(phba); | |
1858 | if (rc == -ERESTART) { | |
1859 | phba->hba_state = 0; | |
1860 | continue; | |
1861 | } else if (rc) { | |
1862 | break; | |
1863 | } | |
1864 | ||
1865 | phba->hba_state = LPFC_INIT_MBX_CMDS; | |
1866 | lpfc_config_port(phba, pmb); | |
1867 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
1868 | if (rc == MBX_SUCCESS) | |
1869 | done = 1; | |
1870 | else { | |
1871 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1872 | "%d:0442 Adapter failed to init, mbxCmd x%x " | |
1873 | "CONFIG_PORT, mbxStatus x%x Data: x%x\n", | |
1874 | phba->brd_no, pmb->mb.mbxCommand, | |
1875 | pmb->mb.mbxStatus, 0); | |
1876 | phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE; | |
1877 | } | |
1878 | } | |
1879 | if (!done) | |
1880 | goto lpfc_sli_hba_setup_error; | |
1881 | ||
1882 | rc = lpfc_sli_ring_map(phba, pmb); | |
1883 | ||
1884 | if (rc) | |
1885 | goto lpfc_sli_hba_setup_error; | |
1886 | ||
1887 | phba->sli.sli_flag |= LPFC_PROCESS_LA; | |
1888 | ||
1889 | rc = lpfc_config_port_post(phba); | |
1890 | if (rc) | |
1891 | goto lpfc_sli_hba_setup_error; | |
1892 | ||
1893 | goto lpfc_sli_hba_setup_exit; | |
1894 | lpfc_sli_hba_setup_error: | |
1895 | phba->hba_state = LPFC_HBA_ERROR; | |
1896 | lpfc_sli_hba_setup_exit: | |
1897 | mempool_free(pmb, phba->mbox_mem_pool); | |
1898 | return rc; | |
1899 | } | |
1900 | ||
1901 | static void | |
1902 | lpfc_mbox_abort(struct lpfc_hba * phba) | |
1903 | { | |
1904 | LPFC_MBOXQ_t *pmbox; | |
1905 | MAILBOX_t *mb; | |
1906 | ||
1907 | if (phba->sli.mbox_active) { | |
1908 | del_timer_sync(&phba->sli.mbox_tmo); | |
1909 | phba->work_hba_events &= ~WORKER_MBOX_TMO; | |
1910 | pmbox = phba->sli.mbox_active; | |
1911 | mb = &pmbox->mb; | |
1912 | phba->sli.mbox_active = NULL; | |
1913 | if (pmbox->mbox_cmpl) { | |
1914 | mb->mbxStatus = MBX_NOT_FINISHED; | |
1915 | (pmbox->mbox_cmpl) (phba, pmbox); | |
1916 | } | |
1917 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
1918 | } | |
1919 | ||
1920 | /* Abort all the non active mailbox commands. */ | |
1921 | spin_lock_irq(phba->host->host_lock); | |
1922 | pmbox = lpfc_mbox_get(phba); | |
1923 | while (pmbox) { | |
1924 | mb = &pmbox->mb; | |
1925 | if (pmbox->mbox_cmpl) { | |
1926 | mb->mbxStatus = MBX_NOT_FINISHED; | |
1927 | spin_unlock_irq(phba->host->host_lock); | |
1928 | (pmbox->mbox_cmpl) (phba, pmbox); | |
1929 | spin_lock_irq(phba->host->host_lock); | |
1930 | } | |
1931 | pmbox = lpfc_mbox_get(phba); | |
1932 | } | |
1933 | spin_unlock_irq(phba->host->host_lock); | |
1934 | return; | |
1935 | } | |
1936 | ||
1937 | /*! lpfc_mbox_timeout | |
1938 | * | |
1939 | * \pre | |
1940 | * \post | |
1941 | * \param hba Pointer to per struct lpfc_hba structure | |
1942 | * \param l1 Pointer to the driver's mailbox queue. | |
1943 | * \return | |
1944 | * void | |
1945 | * | |
1946 | * \b Description: | |
1947 | * | |
1948 | * This routine handles mailbox timeout events at timer interrupt context. | |
1949 | */ | |
1950 | void | |
1951 | lpfc_mbox_timeout(unsigned long ptr) | |
1952 | { | |
1953 | struct lpfc_hba *phba; | |
1954 | unsigned long iflag; | |
1955 | ||
1956 | phba = (struct lpfc_hba *)ptr; | |
1957 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
1958 | if (!(phba->work_hba_events & WORKER_MBOX_TMO)) { | |
1959 | phba->work_hba_events |= WORKER_MBOX_TMO; | |
1960 | if (phba->work_wait) | |
1961 | wake_up(phba->work_wait); | |
1962 | } | |
1963 | spin_unlock_irqrestore(phba->host->host_lock, iflag); | |
1964 | } | |
1965 | ||
1966 | void | |
1967 | lpfc_mbox_timeout_handler(struct lpfc_hba *phba) | |
1968 | { | |
1969 | LPFC_MBOXQ_t *pmbox; | |
1970 | MAILBOX_t *mb; | |
1971 | ||
1972 | spin_lock_irq(phba->host->host_lock); | |
1973 | if (!(phba->work_hba_events & WORKER_MBOX_TMO)) { | |
1974 | spin_unlock_irq(phba->host->host_lock); | |
1975 | return; | |
1976 | } | |
1977 | ||
db468d10 JSEC |
1978 | phba->work_hba_events &= ~WORKER_MBOX_TMO; |
1979 | ||
dea3101e | 1980 | pmbox = phba->sli.mbox_active; |
1981 | mb = &pmbox->mb; | |
1982 | ||
1983 | /* Mbox cmd <mbxCommand> timeout */ | |
1984 | lpfc_printf_log(phba, | |
1985 | KERN_ERR, | |
1986 | LOG_MBOX | LOG_SLI, | |
1987 | "%d:0310 Mailbox command x%x timeout Data: x%x x%x x%p\n", | |
1988 | phba->brd_no, | |
1989 | mb->mbxCommand, | |
1990 | phba->hba_state, | |
1991 | phba->sli.sli_flag, | |
1992 | phba->sli.mbox_active); | |
1993 | ||
db468d10 JSEC |
1994 | phba->sli.mbox_active = NULL; |
1995 | if (pmbox->mbox_cmpl) { | |
1996 | mb->mbxStatus = MBX_NOT_FINISHED; | |
1997 | spin_unlock_irq(phba->host->host_lock); | |
1998 | (pmbox->mbox_cmpl) (phba, pmbox); | |
1999 | spin_lock_irq(phba->host->host_lock); | |
dea3101e | 2000 | } |
db468d10 | 2001 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
dea3101e | 2002 | |
2003 | spin_unlock_irq(phba->host->host_lock); | |
2004 | lpfc_mbox_abort(phba); | |
2005 | return; | |
2006 | } | |
2007 | ||
2008 | int | |
2009 | lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag) | |
2010 | { | |
dea3101e | 2011 | MAILBOX_t *mb; |
2012 | struct lpfc_sli *psli; | |
2013 | uint32_t status, evtctr; | |
2014 | uint32_t ha_copy; | |
2015 | int i; | |
2016 | unsigned long drvr_flag = 0; | |
2017 | volatile uint32_t word0, ldata; | |
2018 | void __iomem *to_slim; | |
2019 | ||
2020 | psli = &phba->sli; | |
2021 | ||
2022 | spin_lock_irqsave(phba->host->host_lock, drvr_flag); | |
2023 | ||
2024 | ||
2025 | mb = &pmbox->mb; | |
2026 | status = MBX_SUCCESS; | |
2027 | ||
41415862 JW |
2028 | if (phba->hba_state == LPFC_HBA_ERROR) { |
2029 | spin_unlock_irqrestore(phba->host->host_lock, drvr_flag); | |
2030 | ||
2031 | /* Mbox command <mbxCommand> cannot issue */ | |
2032 | LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag) | |
2033 | return (MBX_NOT_FINISHED); | |
2034 | } | |
2035 | ||
dea3101e | 2036 | if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { |
2037 | /* Polling for a mbox command when another one is already active | |
2038 | * is not allowed in SLI. Also, the driver must have established | |
2039 | * SLI2 mode to queue and process multiple mbox commands. | |
2040 | */ | |
2041 | ||
2042 | if (flag & MBX_POLL) { | |
2043 | spin_unlock_irqrestore(phba->host->host_lock, | |
2044 | drvr_flag); | |
2045 | ||
2046 | /* Mbox command <mbxCommand> cannot issue */ | |
2047 | LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag) | |
2048 | return (MBX_NOT_FINISHED); | |
2049 | } | |
2050 | ||
2051 | if (!(psli->sli_flag & LPFC_SLI2_ACTIVE)) { | |
2052 | spin_unlock_irqrestore(phba->host->host_lock, | |
2053 | drvr_flag); | |
2054 | /* Mbox command <mbxCommand> cannot issue */ | |
2055 | LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag) | |
2056 | return (MBX_NOT_FINISHED); | |
2057 | } | |
2058 | ||
2059 | /* Handle STOP IOCB processing flag. This is only meaningful | |
2060 | * if we are not polling for mbox completion. | |
2061 | */ | |
2062 | if (flag & MBX_STOP_IOCB) { | |
2063 | flag &= ~MBX_STOP_IOCB; | |
2064 | /* Now flag each ring */ | |
2065 | for (i = 0; i < psli->num_rings; i++) { | |
2066 | /* If the ring is active, flag it */ | |
2067 | if (psli->ring[i].cmdringaddr) { | |
2068 | psli->ring[i].flag |= | |
2069 | LPFC_STOP_IOCB_MBX; | |
2070 | } | |
2071 | } | |
2072 | } | |
2073 | ||
2074 | /* Another mailbox command is still being processed, queue this | |
2075 | * command to be processed later. | |
2076 | */ | |
2077 | lpfc_mbox_put(phba, pmbox); | |
2078 | ||
2079 | /* Mbox cmd issue - BUSY */ | |
2080 | lpfc_printf_log(phba, | |
2081 | KERN_INFO, | |
2082 | LOG_MBOX | LOG_SLI, | |
2083 | "%d:0308 Mbox cmd issue - BUSY Data: x%x x%x x%x x%x\n", | |
2084 | phba->brd_no, | |
2085 | mb->mbxCommand, | |
2086 | phba->hba_state, | |
2087 | psli->sli_flag, | |
2088 | flag); | |
2089 | ||
2090 | psli->slistat.mbox_busy++; | |
2091 | spin_unlock_irqrestore(phba->host->host_lock, | |
2092 | drvr_flag); | |
2093 | ||
2094 | return (MBX_BUSY); | |
2095 | } | |
2096 | ||
2097 | /* Handle STOP IOCB processing flag. This is only meaningful | |
2098 | * if we are not polling for mbox completion. | |
2099 | */ | |
2100 | if (flag & MBX_STOP_IOCB) { | |
2101 | flag &= ~MBX_STOP_IOCB; | |
2102 | if (flag == MBX_NOWAIT) { | |
2103 | /* Now flag each ring */ | |
2104 | for (i = 0; i < psli->num_rings; i++) { | |
2105 | /* If the ring is active, flag it */ | |
2106 | if (psli->ring[i].cmdringaddr) { | |
2107 | psli->ring[i].flag |= | |
2108 | LPFC_STOP_IOCB_MBX; | |
2109 | } | |
2110 | } | |
2111 | } | |
2112 | } | |
2113 | ||
2114 | psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; | |
2115 | ||
2116 | /* If we are not polling, we MUST be in SLI2 mode */ | |
2117 | if (flag != MBX_POLL) { | |
41415862 JW |
2118 | if (!(psli->sli_flag & LPFC_SLI2_ACTIVE) && |
2119 | (mb->mbxCommand != MBX_KILL_BOARD)) { | |
dea3101e | 2120 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2121 | spin_unlock_irqrestore(phba->host->host_lock, | |
2122 | drvr_flag); | |
2123 | /* Mbox command <mbxCommand> cannot issue */ | |
2124 | LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag); | |
2125 | return (MBX_NOT_FINISHED); | |
2126 | } | |
2127 | /* timeout active mbox command */ | |
2128 | mod_timer(&psli->mbox_tmo, jiffies + HZ * LPFC_MBOX_TMO); | |
2129 | } | |
2130 | ||
2131 | /* Mailbox cmd <cmd> issue */ | |
2132 | lpfc_printf_log(phba, | |
2133 | KERN_INFO, | |
2134 | LOG_MBOX | LOG_SLI, | |
2135 | "%d:0309 Mailbox cmd x%x issue Data: x%x x%x x%x\n", | |
2136 | phba->brd_no, | |
2137 | mb->mbxCommand, | |
2138 | phba->hba_state, | |
2139 | psli->sli_flag, | |
2140 | flag); | |
2141 | ||
2142 | psli->slistat.mbox_cmd++; | |
2143 | evtctr = psli->slistat.mbox_event; | |
2144 | ||
2145 | /* next set own bit for the adapter and copy over command word */ | |
2146 | mb->mbxOwner = OWN_CHIP; | |
2147 | ||
2148 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
dea3101e | 2149 | /* First copy command data to host SLIM area */ |
4cc2da1d | 2150 | lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx, MAILBOX_CMD_SIZE); |
dea3101e | 2151 | } else { |
41415862 JW |
2152 | if (mb->mbxCommand == MBX_CONFIG_PORT || |
2153 | mb->mbxCommand == MBX_KILL_BOARD) { | |
dea3101e | 2154 | /* copy command data into host mbox for cmpl */ |
4cc2da1d JSEC |
2155 | lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx, |
2156 | MAILBOX_CMD_SIZE); | |
dea3101e | 2157 | } |
2158 | ||
2159 | /* First copy mbox command data to HBA SLIM, skip past first | |
2160 | word */ | |
2161 | to_slim = phba->MBslimaddr + sizeof (uint32_t); | |
2162 | lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0], | |
2163 | MAILBOX_CMD_SIZE - sizeof (uint32_t)); | |
2164 | ||
2165 | /* Next copy over first word, with mbxOwner set */ | |
2166 | ldata = *((volatile uint32_t *)mb); | |
2167 | to_slim = phba->MBslimaddr; | |
2168 | writel(ldata, to_slim); | |
2169 | readl(to_slim); /* flush */ | |
2170 | ||
2171 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
2172 | /* switch over to host mailbox */ | |
2173 | psli->sli_flag |= LPFC_SLI2_ACTIVE; | |
2174 | } | |
2175 | } | |
2176 | ||
2177 | wmb(); | |
2178 | /* interrupt board to doit right away */ | |
2179 | writel(CA_MBATT, phba->CAregaddr); | |
2180 | readl(phba->CAregaddr); /* flush */ | |
2181 | ||
2182 | switch (flag) { | |
2183 | case MBX_NOWAIT: | |
2184 | /* Don't wait for it to finish, just return */ | |
2185 | psli->mbox_active = pmbox; | |
2186 | break; | |
2187 | ||
2188 | case MBX_POLL: | |
2189 | i = 0; | |
2190 | psli->mbox_active = NULL; | |
2191 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
2192 | /* First read mbox status word */ | |
4cc2da1d | 2193 | word0 = *((volatile uint32_t *)&phba->slim2p->mbx); |
dea3101e | 2194 | word0 = le32_to_cpu(word0); |
2195 | } else { | |
2196 | /* First read mbox status word */ | |
2197 | word0 = readl(phba->MBslimaddr); | |
2198 | } | |
2199 | ||
2200 | /* Read the HBA Host Attention Register */ | |
2201 | ha_copy = readl(phba->HAregaddr); | |
2202 | ||
2203 | /* Wait for command to complete */ | |
41415862 JW |
2204 | while (((word0 & OWN_CHIP) == OWN_CHIP) || |
2205 | (!(ha_copy & HA_MBATT) && | |
2206 | (phba->hba_state > LPFC_WARM_START))) { | |
dea3101e | 2207 | if (i++ >= 100) { |
2208 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
2209 | spin_unlock_irqrestore(phba->host->host_lock, | |
2210 | drvr_flag); | |
2211 | return (MBX_NOT_FINISHED); | |
2212 | } | |
2213 | ||
2214 | /* Check if we took a mbox interrupt while we were | |
2215 | polling */ | |
2216 | if (((word0 & OWN_CHIP) != OWN_CHIP) | |
2217 | && (evtctr != psli->slistat.mbox_event)) | |
2218 | break; | |
2219 | ||
2220 | spin_unlock_irqrestore(phba->host->host_lock, | |
2221 | drvr_flag); | |
2222 | ||
2223 | /* Can be in interrupt context, do not sleep */ | |
2224 | /* (or might be called with interrupts disabled) */ | |
2225 | mdelay(i); | |
2226 | ||
2227 | spin_lock_irqsave(phba->host->host_lock, drvr_flag); | |
2228 | ||
2229 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
2230 | /* First copy command data */ | |
4cc2da1d JSEC |
2231 | word0 = *((volatile uint32_t *) |
2232 | &phba->slim2p->mbx); | |
dea3101e | 2233 | word0 = le32_to_cpu(word0); |
2234 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
2235 | MAILBOX_t *slimmb; | |
2236 | volatile uint32_t slimword0; | |
2237 | /* Check real SLIM for any errors */ | |
2238 | slimword0 = readl(phba->MBslimaddr); | |
2239 | slimmb = (MAILBOX_t *) & slimword0; | |
2240 | if (((slimword0 & OWN_CHIP) != OWN_CHIP) | |
2241 | && slimmb->mbxStatus) { | |
2242 | psli->sli_flag &= | |
2243 | ~LPFC_SLI2_ACTIVE; | |
2244 | word0 = slimword0; | |
2245 | } | |
2246 | } | |
2247 | } else { | |
2248 | /* First copy command data */ | |
2249 | word0 = readl(phba->MBslimaddr); | |
2250 | } | |
2251 | /* Read the HBA Host Attention Register */ | |
2252 | ha_copy = readl(phba->HAregaddr); | |
2253 | } | |
2254 | ||
2255 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
dea3101e | 2256 | /* copy results back to user */ |
4cc2da1d JSEC |
2257 | lpfc_sli_pcimem_bcopy(&phba->slim2p->mbx, mb, |
2258 | MAILBOX_CMD_SIZE); | |
dea3101e | 2259 | } else { |
2260 | /* First copy command data */ | |
2261 | lpfc_memcpy_from_slim(mb, phba->MBslimaddr, | |
2262 | MAILBOX_CMD_SIZE); | |
2263 | if ((mb->mbxCommand == MBX_DUMP_MEMORY) && | |
2264 | pmbox->context2) { | |
2265 | lpfc_memcpy_from_slim((void *)pmbox->context2, | |
2266 | phba->MBslimaddr + DMP_RSP_OFFSET, | |
2267 | mb->un.varDmp.word_cnt); | |
2268 | } | |
2269 | } | |
2270 | ||
2271 | writel(HA_MBATT, phba->HAregaddr); | |
2272 | readl(phba->HAregaddr); /* flush */ | |
2273 | ||
2274 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
2275 | status = mb->mbxStatus; | |
2276 | } | |
2277 | ||
2278 | spin_unlock_irqrestore(phba->host->host_lock, drvr_flag); | |
2279 | return (status); | |
2280 | } | |
2281 | ||
2282 | static int | |
2283 | lpfc_sli_ringtx_put(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, | |
2284 | struct lpfc_iocbq * piocb) | |
2285 | { | |
2286 | /* Insert the caller's iocb in the txq tail for later processing. */ | |
2287 | list_add_tail(&piocb->list, &pring->txq); | |
2288 | pring->txq_cnt++; | |
2289 | return (0); | |
2290 | } | |
2291 | ||
2292 | static struct lpfc_iocbq * | |
2293 | lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2294 | struct lpfc_iocbq ** piocb) | |
2295 | { | |
2296 | struct lpfc_iocbq * nextiocb; | |
2297 | ||
2298 | nextiocb = lpfc_sli_ringtx_get(phba, pring); | |
2299 | if (!nextiocb) { | |
2300 | nextiocb = *piocb; | |
2301 | *piocb = NULL; | |
2302 | } | |
2303 | ||
2304 | return nextiocb; | |
2305 | } | |
2306 | ||
2307 | int | |
2308 | lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2309 | struct lpfc_iocbq *piocb, uint32_t flag) | |
2310 | { | |
2311 | struct lpfc_iocbq *nextiocb; | |
2312 | IOCB_t *iocb; | |
2313 | ||
2314 | /* | |
2315 | * We should never get an IOCB if we are in a < LINK_DOWN state | |
2316 | */ | |
2317 | if (unlikely(phba->hba_state < LPFC_LINK_DOWN)) | |
2318 | return IOCB_ERROR; | |
2319 | ||
2320 | /* | |
2321 | * Check to see if we are blocking IOCB processing because of a | |
2322 | * outstanding mbox command. | |
2323 | */ | |
2324 | if (unlikely(pring->flag & LPFC_STOP_IOCB_MBX)) | |
2325 | goto iocb_busy; | |
2326 | ||
2327 | if (unlikely(phba->hba_state == LPFC_LINK_DOWN)) { | |
2328 | /* | |
2329 | * Only CREATE_XRI, CLOSE_XRI, ABORT_XRI, and QUE_RING_BUF | |
2330 | * can be issued if the link is not up. | |
2331 | */ | |
2332 | switch (piocb->iocb.ulpCommand) { | |
2333 | case CMD_QUE_RING_BUF_CN: | |
2334 | case CMD_QUE_RING_BUF64_CN: | |
dea3101e | 2335 | /* |
2336 | * For IOCBs, like QUE_RING_BUF, that have no rsp ring | |
2337 | * completion, iocb_cmpl MUST be 0. | |
2338 | */ | |
2339 | if (piocb->iocb_cmpl) | |
2340 | piocb->iocb_cmpl = NULL; | |
2341 | /*FALLTHROUGH*/ | |
2342 | case CMD_CREATE_XRI_CR: | |
2343 | break; | |
2344 | default: | |
2345 | goto iocb_busy; | |
2346 | } | |
2347 | ||
2348 | /* | |
2349 | * For FCP commands, we must be in a state where we can process link | |
2350 | * attention events. | |
2351 | */ | |
2352 | } else if (unlikely(pring->ringno == phba->sli.fcp_ring && | |
2353 | !(phba->sli.sli_flag & LPFC_PROCESS_LA))) | |
2354 | goto iocb_busy; | |
2355 | ||
dea3101e | 2356 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && |
2357 | (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb))) | |
2358 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
2359 | ||
2360 | if (iocb) | |
2361 | lpfc_sli_update_ring(phba, pring); | |
2362 | else | |
2363 | lpfc_sli_update_full_ring(phba, pring); | |
2364 | ||
2365 | if (!piocb) | |
2366 | return IOCB_SUCCESS; | |
2367 | ||
2368 | goto out_busy; | |
2369 | ||
2370 | iocb_busy: | |
2371 | pring->stats.iocb_cmd_delay++; | |
2372 | ||
2373 | out_busy: | |
2374 | ||
2375 | if (!(flag & SLI_IOCB_RET_IOCB)) { | |
2376 | lpfc_sli_ringtx_put(phba, pring, piocb); | |
2377 | return IOCB_SUCCESS; | |
2378 | } | |
2379 | ||
2380 | return IOCB_BUSY; | |
2381 | } | |
2382 | ||
cf5bf97e JW |
2383 | static int |
2384 | lpfc_extra_ring_setup( struct lpfc_hba *phba) | |
2385 | { | |
2386 | struct lpfc_sli *psli; | |
2387 | struct lpfc_sli_ring *pring; | |
2388 | ||
2389 | psli = &phba->sli; | |
2390 | ||
2391 | /* Adjust cmd/rsp ring iocb entries more evenly */ | |
2392 | pring = &psli->ring[psli->fcp_ring]; | |
2393 | pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
2394 | pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
2395 | pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
2396 | pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
2397 | ||
2398 | pring = &psli->ring[1]; | |
2399 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
2400 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
2401 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
2402 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
2403 | ||
2404 | /* Setup default profile for this ring */ | |
2405 | pring->iotag_max = 4096; | |
2406 | pring->num_mask = 1; | |
2407 | pring->prt[0].profile = 0; /* Mask 0 */ | |
2408 | pring->prt[0].rctl = FC_UNSOL_DATA; | |
2409 | pring->prt[0].type = 5; | |
2410 | pring->prt[0].lpfc_sli_rcv_unsol_event = NULL; | |
2411 | return 0; | |
2412 | } | |
2413 | ||
dea3101e | 2414 | int |
2415 | lpfc_sli_setup(struct lpfc_hba *phba) | |
2416 | { | |
2417 | int i, totiocb = 0; | |
2418 | struct lpfc_sli *psli = &phba->sli; | |
2419 | struct lpfc_sli_ring *pring; | |
2420 | ||
2421 | psli->num_rings = MAX_CONFIGURED_RINGS; | |
2422 | psli->sli_flag = 0; | |
2423 | psli->fcp_ring = LPFC_FCP_RING; | |
2424 | psli->next_ring = LPFC_FCP_NEXT_RING; | |
2425 | psli->ip_ring = LPFC_IP_RING; | |
2426 | ||
604a3e30 JB |
2427 | psli->iocbq_lookup = NULL; |
2428 | psli->iocbq_lookup_len = 0; | |
2429 | psli->last_iotag = 0; | |
2430 | ||
dea3101e | 2431 | for (i = 0; i < psli->num_rings; i++) { |
2432 | pring = &psli->ring[i]; | |
2433 | switch (i) { | |
2434 | case LPFC_FCP_RING: /* ring 0 - FCP */ | |
2435 | /* numCiocb and numRiocb are used in config_port */ | |
2436 | pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES; | |
2437 | pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES; | |
2438 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
2439 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
2440 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
2441 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
2442 | pring->iotag_ctr = 0; | |
2443 | pring->iotag_max = | |
2444 | (phba->cfg_hba_queue_depth * 2); | |
2445 | pring->fast_iotag = pring->iotag_max; | |
2446 | pring->num_mask = 0; | |
2447 | break; | |
2448 | case LPFC_IP_RING: /* ring 1 - IP */ | |
2449 | /* numCiocb and numRiocb are used in config_port */ | |
2450 | pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES; | |
2451 | pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES; | |
2452 | pring->num_mask = 0; | |
2453 | break; | |
2454 | case LPFC_ELS_RING: /* ring 2 - ELS / CT */ | |
2455 | /* numCiocb and numRiocb are used in config_port */ | |
2456 | pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES; | |
2457 | pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES; | |
2458 | pring->fast_iotag = 0; | |
2459 | pring->iotag_ctr = 0; | |
2460 | pring->iotag_max = 4096; | |
2461 | pring->num_mask = 4; | |
2462 | pring->prt[0].profile = 0; /* Mask 0 */ | |
2463 | pring->prt[0].rctl = FC_ELS_REQ; | |
2464 | pring->prt[0].type = FC_ELS_DATA; | |
2465 | pring->prt[0].lpfc_sli_rcv_unsol_event = | |
2466 | lpfc_els_unsol_event; | |
2467 | pring->prt[1].profile = 0; /* Mask 1 */ | |
2468 | pring->prt[1].rctl = FC_ELS_RSP; | |
2469 | pring->prt[1].type = FC_ELS_DATA; | |
2470 | pring->prt[1].lpfc_sli_rcv_unsol_event = | |
2471 | lpfc_els_unsol_event; | |
2472 | pring->prt[2].profile = 0; /* Mask 2 */ | |
2473 | /* NameServer Inquiry */ | |
2474 | pring->prt[2].rctl = FC_UNSOL_CTL; | |
2475 | /* NameServer */ | |
2476 | pring->prt[2].type = FC_COMMON_TRANSPORT_ULP; | |
2477 | pring->prt[2].lpfc_sli_rcv_unsol_event = | |
2478 | lpfc_ct_unsol_event; | |
2479 | pring->prt[3].profile = 0; /* Mask 3 */ | |
2480 | /* NameServer response */ | |
2481 | pring->prt[3].rctl = FC_SOL_CTL; | |
2482 | /* NameServer */ | |
2483 | pring->prt[3].type = FC_COMMON_TRANSPORT_ULP; | |
2484 | pring->prt[3].lpfc_sli_rcv_unsol_event = | |
2485 | lpfc_ct_unsol_event; | |
2486 | break; | |
2487 | } | |
2488 | totiocb += (pring->numCiocb + pring->numRiocb); | |
2489 | } | |
2490 | if (totiocb > MAX_SLI2_IOCB) { | |
2491 | /* Too many cmd / rsp ring entries in SLI2 SLIM */ | |
2492 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
2493 | "%d:0462 Too many cmd / rsp ring entries in " | |
2494 | "SLI2 SLIM Data: x%x x%x\n", | |
2495 | phba->brd_no, totiocb, MAX_SLI2_IOCB); | |
2496 | } | |
cf5bf97e JW |
2497 | if (phba->cfg_multi_ring_support == 2) |
2498 | lpfc_extra_ring_setup(phba); | |
dea3101e | 2499 | |
2500 | return 0; | |
2501 | } | |
2502 | ||
2503 | int | |
2504 | lpfc_sli_queue_setup(struct lpfc_hba * phba) | |
2505 | { | |
2506 | struct lpfc_sli *psli; | |
2507 | struct lpfc_sli_ring *pring; | |
604a3e30 | 2508 | int i; |
dea3101e | 2509 | |
2510 | psli = &phba->sli; | |
2511 | spin_lock_irq(phba->host->host_lock); | |
2512 | INIT_LIST_HEAD(&psli->mboxq); | |
2513 | /* Initialize list headers for txq and txcmplq as double linked lists */ | |
2514 | for (i = 0; i < psli->num_rings; i++) { | |
2515 | pring = &psli->ring[i]; | |
2516 | pring->ringno = i; | |
2517 | pring->next_cmdidx = 0; | |
2518 | pring->local_getidx = 0; | |
2519 | pring->cmdidx = 0; | |
2520 | INIT_LIST_HEAD(&pring->txq); | |
2521 | INIT_LIST_HEAD(&pring->txcmplq); | |
2522 | INIT_LIST_HEAD(&pring->iocb_continueq); | |
2523 | INIT_LIST_HEAD(&pring->postbufq); | |
dea3101e | 2524 | } |
2525 | spin_unlock_irq(phba->host->host_lock); | |
2526 | return (1); | |
2527 | } | |
2528 | ||
2529 | int | |
2530 | lpfc_sli_hba_down(struct lpfc_hba * phba) | |
2531 | { | |
2532 | struct lpfc_sli *psli; | |
2533 | struct lpfc_sli_ring *pring; | |
2534 | LPFC_MBOXQ_t *pmb; | |
2535 | struct lpfc_iocbq *iocb, *next_iocb; | |
2536 | IOCB_t *icmd = NULL; | |
2537 | int i; | |
2538 | unsigned long flags = 0; | |
2539 | ||
2540 | psli = &phba->sli; | |
2541 | lpfc_hba_down_prep(phba); | |
2542 | ||
2543 | spin_lock_irqsave(phba->host->host_lock, flags); | |
2544 | ||
2545 | for (i = 0; i < psli->num_rings; i++) { | |
2546 | pring = &psli->ring[i]; | |
2547 | pring->flag |= LPFC_DEFERRED_RING_EVENT; | |
2548 | ||
2549 | /* | |
2550 | * Error everything on the txq since these iocbs have not been | |
2551 | * given to the FW yet. | |
2552 | */ | |
2553 | pring->txq_cnt = 0; | |
2554 | ||
2555 | list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { | |
2556 | list_del_init(&iocb->list); | |
2557 | if (iocb->iocb_cmpl) { | |
2558 | icmd = &iocb->iocb; | |
2559 | icmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
2560 | icmd->un.ulpWord[4] = IOERR_SLI_DOWN; | |
2561 | spin_unlock_irqrestore(phba->host->host_lock, | |
2562 | flags); | |
2563 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
2564 | spin_lock_irqsave(phba->host->host_lock, flags); | |
604a3e30 JB |
2565 | } else |
2566 | lpfc_sli_release_iocbq(phba, iocb); | |
dea3101e | 2567 | } |
2568 | ||
2569 | INIT_LIST_HEAD(&(pring->txq)); | |
2570 | ||
c9475cb0 JJ |
2571 | kfree(pring->fast_lookup); |
2572 | pring->fast_lookup = NULL; | |
dea3101e | 2573 | } |
2574 | ||
2575 | spin_unlock_irqrestore(phba->host->host_lock, flags); | |
2576 | ||
2577 | /* Return any active mbox cmds */ | |
2578 | del_timer_sync(&psli->mbox_tmo); | |
2579 | spin_lock_irqsave(phba->host->host_lock, flags); | |
2580 | phba->work_hba_events &= ~WORKER_MBOX_TMO; | |
2581 | if (psli->mbox_active) { | |
2582 | pmb = psli->mbox_active; | |
2583 | pmb->mb.mbxStatus = MBX_NOT_FINISHED; | |
2584 | if (pmb->mbox_cmpl) { | |
2585 | spin_unlock_irqrestore(phba->host->host_lock, flags); | |
2586 | pmb->mbox_cmpl(phba,pmb); | |
2587 | spin_lock_irqsave(phba->host->host_lock, flags); | |
2588 | } | |
2589 | } | |
2590 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
2591 | psli->mbox_active = NULL; | |
2592 | ||
2593 | /* Return any pending mbox cmds */ | |
2594 | while ((pmb = lpfc_mbox_get(phba)) != NULL) { | |
2595 | pmb->mb.mbxStatus = MBX_NOT_FINISHED; | |
2596 | if (pmb->mbox_cmpl) { | |
2597 | spin_unlock_irqrestore(phba->host->host_lock, flags); | |
2598 | pmb->mbox_cmpl(phba,pmb); | |
2599 | spin_lock_irqsave(phba->host->host_lock, flags); | |
2600 | } | |
2601 | } | |
2602 | ||
2603 | INIT_LIST_HEAD(&psli->mboxq); | |
2604 | ||
2605 | spin_unlock_irqrestore(phba->host->host_lock, flags); | |
2606 | ||
dea3101e | 2607 | return 1; |
2608 | } | |
2609 | ||
2610 | void | |
2611 | lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt) | |
2612 | { | |
2613 | uint32_t *src = srcp; | |
2614 | uint32_t *dest = destp; | |
2615 | uint32_t ldata; | |
2616 | int i; | |
2617 | ||
2618 | for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) { | |
2619 | ldata = *src; | |
2620 | ldata = le32_to_cpu(ldata); | |
2621 | *dest = ldata; | |
2622 | src++; | |
2623 | dest++; | |
2624 | } | |
2625 | } | |
2626 | ||
2627 | int | |
2628 | lpfc_sli_ringpostbuf_put(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, | |
2629 | struct lpfc_dmabuf * mp) | |
2630 | { | |
2631 | /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up | |
2632 | later */ | |
2633 | list_add_tail(&mp->list, &pring->postbufq); | |
2634 | ||
2635 | pring->postbufq_cnt++; | |
2636 | return 0; | |
2637 | } | |
2638 | ||
2639 | ||
2640 | struct lpfc_dmabuf * | |
2641 | lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2642 | dma_addr_t phys) | |
2643 | { | |
2644 | struct lpfc_dmabuf *mp, *next_mp; | |
2645 | struct list_head *slp = &pring->postbufq; | |
2646 | ||
2647 | /* Search postbufq, from the begining, looking for a match on phys */ | |
2648 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { | |
2649 | if (mp->phys == phys) { | |
2650 | list_del_init(&mp->list); | |
2651 | pring->postbufq_cnt--; | |
2652 | return mp; | |
2653 | } | |
2654 | } | |
2655 | ||
2656 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
2657 | "%d:0410 Cannot find virtual addr for mapped buf on " | |
2658 | "ring %d Data x%llx x%p x%p x%x\n", | |
2659 | phba->brd_no, pring->ringno, (unsigned long long)phys, | |
2660 | slp->next, slp->prev, pring->postbufq_cnt); | |
2661 | return NULL; | |
2662 | } | |
2663 | ||
2664 | static void | |
2665 | lpfc_sli_abort_elsreq_cmpl(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, | |
2666 | struct lpfc_iocbq * rspiocb) | |
2667 | { | |
2668 | struct lpfc_dmabuf *buf_ptr, *buf_ptr1; | |
2669 | /* Free the resources associated with the ELS_REQUEST64 IOCB the driver | |
2670 | * just aborted. | |
2671 | * In this case, context2 = cmd, context2->next = rsp, context3 = bpl | |
2672 | */ | |
2673 | if (cmdiocb->context2) { | |
2674 | buf_ptr1 = (struct lpfc_dmabuf *) cmdiocb->context2; | |
2675 | ||
2676 | /* Free the response IOCB before completing the abort | |
2677 | command. */ | |
2678 | buf_ptr = NULL; | |
2679 | list_remove_head((&buf_ptr1->list), buf_ptr, | |
2680 | struct lpfc_dmabuf, list); | |
2681 | if (buf_ptr) { | |
2682 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
2683 | kfree(buf_ptr); | |
2684 | } | |
2685 | lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys); | |
2686 | kfree(buf_ptr1); | |
2687 | } | |
2688 | ||
2689 | if (cmdiocb->context3) { | |
2690 | buf_ptr = (struct lpfc_dmabuf *) cmdiocb->context3; | |
2691 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
2692 | kfree(buf_ptr); | |
2693 | } | |
2694 | ||
604a3e30 | 2695 | lpfc_sli_release_iocbq(phba, cmdiocb); |
dea3101e | 2696 | return; |
2697 | } | |
2698 | ||
2699 | int | |
2700 | lpfc_sli_issue_abort_iotag32(struct lpfc_hba * phba, | |
2701 | struct lpfc_sli_ring * pring, | |
2702 | struct lpfc_iocbq * cmdiocb) | |
2703 | { | |
0bd4ca25 | 2704 | struct lpfc_iocbq *abtsiocbp; |
dea3101e | 2705 | IOCB_t *icmd = NULL; |
2706 | IOCB_t *iabt = NULL; | |
2707 | ||
2708 | /* issue ABTS for this IOCB based on iotag */ | |
0bd4ca25 | 2709 | abtsiocbp = lpfc_sli_get_iocbq(phba); |
dea3101e | 2710 | if (abtsiocbp == NULL) |
2711 | return 0; | |
dea3101e | 2712 | |
2713 | iabt = &abtsiocbp->iocb; | |
2714 | icmd = &cmdiocb->iocb; | |
2715 | switch (icmd->ulpCommand) { | |
2716 | case CMD_ELS_REQUEST64_CR: | |
2717 | /* Even though we abort the ELS command, the firmware may access | |
2718 | * the BPL or other resources before it processes our | |
2719 | * ABORT_MXRI64. Thus we must delay reusing the cmdiocb | |
2720 | * resources till the actual abort request completes. | |
2721 | */ | |
2722 | abtsiocbp->context1 = (void *)((unsigned long)icmd->ulpCommand); | |
2723 | abtsiocbp->context2 = cmdiocb->context2; | |
2724 | abtsiocbp->context3 = cmdiocb->context3; | |
2725 | cmdiocb->context2 = NULL; | |
2726 | cmdiocb->context3 = NULL; | |
2727 | abtsiocbp->iocb_cmpl = lpfc_sli_abort_elsreq_cmpl; | |
2728 | break; | |
2729 | default: | |
604a3e30 | 2730 | lpfc_sli_release_iocbq(phba, abtsiocbp); |
dea3101e | 2731 | return 0; |
2732 | } | |
2733 | ||
2734 | iabt->un.amxri.abortType = ABORT_TYPE_ABTS; | |
2735 | iabt->un.amxri.iotag32 = icmd->un.elsreq64.bdl.ulpIoTag32; | |
2736 | ||
2737 | iabt->ulpLe = 1; | |
2738 | iabt->ulpClass = CLASS3; | |
2739 | iabt->ulpCommand = CMD_ABORT_MXRI64_CN; | |
2740 | ||
2741 | if (lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0) == IOCB_ERROR) { | |
604a3e30 | 2742 | lpfc_sli_release_iocbq(phba, abtsiocbp); |
dea3101e | 2743 | return 0; |
2744 | } | |
2745 | ||
2746 | return 1; | |
2747 | } | |
2748 | ||
2749 | static int | |
0bd4ca25 JSEC |
2750 | lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, uint16_t tgt_id, |
2751 | uint64_t lun_id, uint32_t ctx, | |
2752 | lpfc_ctx_cmd ctx_cmd) | |
dea3101e | 2753 | { |
0bd4ca25 JSEC |
2754 | struct lpfc_scsi_buf *lpfc_cmd; |
2755 | struct scsi_cmnd *cmnd; | |
dea3101e | 2756 | int rc = 1; |
2757 | ||
0bd4ca25 JSEC |
2758 | if (!(iocbq->iocb_flag & LPFC_IO_FCP)) |
2759 | return rc; | |
2760 | ||
2761 | lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq); | |
2762 | cmnd = lpfc_cmd->pCmd; | |
2763 | ||
2764 | if (cmnd == NULL) | |
dea3101e | 2765 | return rc; |
2766 | ||
2767 | switch (ctx_cmd) { | |
2768 | case LPFC_CTX_LUN: | |
0bd4ca25 JSEC |
2769 | if ((cmnd->device->id == tgt_id) && |
2770 | (cmnd->device->lun == lun_id)) | |
dea3101e | 2771 | rc = 0; |
2772 | break; | |
2773 | case LPFC_CTX_TGT: | |
0bd4ca25 | 2774 | if (cmnd->device->id == tgt_id) |
dea3101e | 2775 | rc = 0; |
2776 | break; | |
2777 | case LPFC_CTX_CTX: | |
0bd4ca25 | 2778 | if (iocbq->iocb.ulpContext == ctx) |
dea3101e | 2779 | rc = 0; |
0bd4ca25 | 2780 | break; |
dea3101e | 2781 | case LPFC_CTX_HOST: |
2782 | rc = 0; | |
2783 | break; | |
2784 | default: | |
2785 | printk(KERN_ERR "%s: Unknown context cmd type, value %d\n", | |
2786 | __FUNCTION__, ctx_cmd); | |
2787 | break; | |
2788 | } | |
2789 | ||
2790 | return rc; | |
2791 | } | |
2792 | ||
2793 | int | |
2794 | lpfc_sli_sum_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2795 | uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd ctx_cmd) | |
2796 | { | |
0bd4ca25 JSEC |
2797 | struct lpfc_iocbq *iocbq; |
2798 | int sum, i; | |
dea3101e | 2799 | |
0bd4ca25 JSEC |
2800 | for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) { |
2801 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 2802 | |
0bd4ca25 JSEC |
2803 | if (lpfc_sli_validate_fcp_iocb (iocbq, tgt_id, lun_id, |
2804 | 0, ctx_cmd) == 0) | |
2805 | sum++; | |
dea3101e | 2806 | } |
0bd4ca25 | 2807 | |
dea3101e | 2808 | return sum; |
2809 | } | |
2810 | ||
5eb95af0 JSEC |
2811 | void |
2812 | lpfc_sli_abort_fcp_cmpl(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, | |
2813 | struct lpfc_iocbq * rspiocb) | |
2814 | { | |
2815 | spin_lock_irq(phba->host->host_lock); | |
604a3e30 | 2816 | lpfc_sli_release_iocbq(phba, cmdiocb); |
5eb95af0 JSEC |
2817 | spin_unlock_irq(phba->host->host_lock); |
2818 | return; | |
2819 | } | |
2820 | ||
dea3101e | 2821 | int |
2822 | lpfc_sli_abort_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2823 | uint16_t tgt_id, uint64_t lun_id, uint32_t ctx, | |
2824 | lpfc_ctx_cmd abort_cmd) | |
2825 | { | |
0bd4ca25 JSEC |
2826 | struct lpfc_iocbq *iocbq; |
2827 | struct lpfc_iocbq *abtsiocb; | |
dea3101e | 2828 | IOCB_t *cmd = NULL; |
dea3101e | 2829 | int errcnt = 0, ret_val = 0; |
0bd4ca25 | 2830 | int i; |
dea3101e | 2831 | |
0bd4ca25 JSEC |
2832 | for (i = 1; i <= phba->sli.last_iotag; i++) { |
2833 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 2834 | |
0bd4ca25 JSEC |
2835 | if (lpfc_sli_validate_fcp_iocb (iocbq, tgt_id, lun_id, |
2836 | 0, abort_cmd) != 0) | |
dea3101e | 2837 | continue; |
2838 | ||
2839 | /* issue ABTS for this IOCB based on iotag */ | |
0bd4ca25 | 2840 | abtsiocb = lpfc_sli_get_iocbq(phba); |
dea3101e | 2841 | if (abtsiocb == NULL) { |
2842 | errcnt++; | |
2843 | continue; | |
2844 | } | |
dea3101e | 2845 | |
0bd4ca25 | 2846 | cmd = &iocbq->iocb; |
dea3101e | 2847 | abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS; |
2848 | abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext; | |
2849 | abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag; | |
2850 | abtsiocb->iocb.ulpLe = 1; | |
2851 | abtsiocb->iocb.ulpClass = cmd->ulpClass; | |
2852 | ||
2853 | if (phba->hba_state >= LPFC_LINK_UP) | |
2854 | abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN; | |
2855 | else | |
2856 | abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN; | |
2857 | ||
5eb95af0 JSEC |
2858 | /* Setup callback routine and issue the command. */ |
2859 | abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl; | |
dea3101e | 2860 | ret_val = lpfc_sli_issue_iocb(phba, pring, abtsiocb, 0); |
2861 | if (ret_val == IOCB_ERROR) { | |
604a3e30 | 2862 | lpfc_sli_release_iocbq(phba, abtsiocb); |
dea3101e | 2863 | errcnt++; |
2864 | continue; | |
2865 | } | |
2866 | } | |
2867 | ||
2868 | return errcnt; | |
2869 | } | |
2870 | ||
68876920 JSEC |
2871 | static void |
2872 | lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba, | |
2873 | struct lpfc_iocbq *cmdiocbq, | |
2874 | struct lpfc_iocbq *rspiocbq) | |
dea3101e | 2875 | { |
68876920 JSEC |
2876 | wait_queue_head_t *pdone_q; |
2877 | unsigned long iflags; | |
dea3101e | 2878 | |
68876920 JSEC |
2879 | spin_lock_irqsave(phba->host->host_lock, iflags); |
2880 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; | |
2881 | if (cmdiocbq->context2 && rspiocbq) | |
2882 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, | |
2883 | &rspiocbq->iocb, sizeof(IOCB_t)); | |
2884 | ||
2885 | pdone_q = cmdiocbq->context_un.wait_queue; | |
2886 | spin_unlock_irqrestore(phba->host->host_lock, iflags); | |
2887 | if (pdone_q) | |
2888 | wake_up(pdone_q); | |
dea3101e | 2889 | return; |
2890 | } | |
2891 | ||
68876920 JSEC |
2892 | /* |
2893 | * Issue the caller's iocb and wait for its completion, but no longer than the | |
2894 | * caller's timeout. Note that iocb_flags is cleared before the | |
2895 | * lpfc_sli_issue_call since the wake routine sets a unique value and by | |
2896 | * definition this is a wait function. | |
2897 | */ | |
dea3101e | 2898 | int |
68876920 JSEC |
2899 | lpfc_sli_issue_iocb_wait(struct lpfc_hba * phba, |
2900 | struct lpfc_sli_ring * pring, | |
2901 | struct lpfc_iocbq * piocb, | |
2902 | struct lpfc_iocbq * prspiocbq, | |
2903 | uint32_t timeout) | |
dea3101e | 2904 | { |
68876920 JSEC |
2905 | DECLARE_WAIT_QUEUE_HEAD(done_q); |
2906 | long timeleft, timeout_req = 0; | |
2907 | int retval = IOCB_SUCCESS; | |
875fbdfe | 2908 | uint32_t creg_val; |
dea3101e | 2909 | |
2910 | /* | |
68876920 JSEC |
2911 | * If the caller has provided a response iocbq buffer, then context2 |
2912 | * is NULL or its an error. | |
dea3101e | 2913 | */ |
68876920 JSEC |
2914 | if (prspiocbq) { |
2915 | if (piocb->context2) | |
2916 | return IOCB_ERROR; | |
2917 | piocb->context2 = prspiocbq; | |
dea3101e | 2918 | } |
2919 | ||
68876920 JSEC |
2920 | piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait; |
2921 | piocb->context_un.wait_queue = &done_q; | |
2922 | piocb->iocb_flag &= ~LPFC_IO_WAKE; | |
dea3101e | 2923 | |
875fbdfe JSEC |
2924 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
2925 | creg_val = readl(phba->HCregaddr); | |
2926 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); | |
2927 | writel(creg_val, phba->HCregaddr); | |
2928 | readl(phba->HCregaddr); /* flush */ | |
2929 | } | |
2930 | ||
68876920 JSEC |
2931 | retval = lpfc_sli_issue_iocb(phba, pring, piocb, 0); |
2932 | if (retval == IOCB_SUCCESS) { | |
2933 | timeout_req = timeout * HZ; | |
2934 | spin_unlock_irq(phba->host->host_lock); | |
2935 | timeleft = wait_event_timeout(done_q, | |
2936 | piocb->iocb_flag & LPFC_IO_WAKE, | |
2937 | timeout_req); | |
2938 | spin_lock_irq(phba->host->host_lock); | |
dea3101e | 2939 | |
68876920 JSEC |
2940 | if (timeleft == 0) { |
2941 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
2942 | "%d:0329 IOCB wait timeout error - no " | |
2943 | "wake response Data x%x\n", | |
2944 | phba->brd_no, timeout); | |
2945 | retval = IOCB_TIMEDOUT; | |
2946 | } else if (!(piocb->iocb_flag & LPFC_IO_WAKE)) { | |
2947 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
2948 | "%d:0330 IOCB wake NOT set, " | |
2949 | "Data x%x x%lx\n", phba->brd_no, | |
2950 | timeout, (timeleft / jiffies)); | |
2951 | retval = IOCB_TIMEDOUT; | |
2952 | } else { | |
2953 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
2954 | "%d:0331 IOCB wake signaled\n", | |
2955 | phba->brd_no); | |
dea3101e | 2956 | } |
68876920 JSEC |
2957 | } else { |
2958 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
2959 | "%d:0332 IOCB wait issue failed, Data x%x\n", | |
2960 | phba->brd_no, retval); | |
2961 | retval = IOCB_ERROR; | |
dea3101e | 2962 | } |
2963 | ||
875fbdfe JSEC |
2964 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
2965 | creg_val = readl(phba->HCregaddr); | |
2966 | creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); | |
2967 | writel(creg_val, phba->HCregaddr); | |
2968 | readl(phba->HCregaddr); /* flush */ | |
2969 | } | |
2970 | ||
68876920 JSEC |
2971 | if (prspiocbq) |
2972 | piocb->context2 = NULL; | |
2973 | ||
2974 | piocb->context_un.wait_queue = NULL; | |
2975 | piocb->iocb_cmpl = NULL; | |
dea3101e | 2976 | return retval; |
2977 | } | |
68876920 | 2978 | |
dea3101e | 2979 | int |
2980 | lpfc_sli_issue_mbox_wait(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq, | |
2981 | uint32_t timeout) | |
2982 | { | |
2983 | DECLARE_WAIT_QUEUE_HEAD(done_q); | |
2984 | DECLARE_WAITQUEUE(wq_entry, current); | |
2985 | uint32_t timeleft = 0; | |
2986 | int retval; | |
2987 | ||
2988 | /* The caller must leave context1 empty. */ | |
2989 | if (pmboxq->context1 != 0) { | |
2990 | return (MBX_NOT_FINISHED); | |
2991 | } | |
2992 | ||
2993 | /* setup wake call as IOCB callback */ | |
2994 | pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait; | |
2995 | /* setup context field to pass wait_queue pointer to wake function */ | |
2996 | pmboxq->context1 = &done_q; | |
2997 | ||
2998 | /* start to sleep before we wait, to avoid races */ | |
2999 | set_current_state(TASK_INTERRUPTIBLE); | |
3000 | add_wait_queue(&done_q, &wq_entry); | |
3001 | ||
3002 | /* now issue the command */ | |
3003 | retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); | |
3004 | ||
3005 | if (retval == MBX_BUSY || retval == MBX_SUCCESS) { | |
3006 | timeleft = schedule_timeout(timeout * HZ); | |
3007 | pmboxq->context1 = NULL; | |
3008 | /* if schedule_timeout returns 0, we timed out and were not | |
3009 | woken up */ | |
406d6041 | 3010 | if ((timeleft == 0) || signal_pending(current)) |
dea3101e | 3011 | retval = MBX_TIMEOUT; |
406d6041 | 3012 | else |
dea3101e | 3013 | retval = MBX_SUCCESS; |
dea3101e | 3014 | } |
3015 | ||
3016 | ||
3017 | set_current_state(TASK_RUNNING); | |
3018 | remove_wait_queue(&done_q, &wq_entry); | |
3019 | return retval; | |
3020 | } | |
3021 | ||
3022 | irqreturn_t | |
3023 | lpfc_intr_handler(int irq, void *dev_id, struct pt_regs * regs) | |
3024 | { | |
3025 | struct lpfc_hba *phba; | |
3026 | uint32_t ha_copy; | |
3027 | uint32_t work_ha_copy; | |
3028 | unsigned long status; | |
3029 | int i; | |
3030 | uint32_t control; | |
3031 | ||
3032 | /* | |
3033 | * Get the driver's phba structure from the dev_id and | |
3034 | * assume the HBA is not interrupting. | |
3035 | */ | |
3036 | phba = (struct lpfc_hba *) dev_id; | |
3037 | ||
3038 | if (unlikely(!phba)) | |
3039 | return IRQ_NONE; | |
3040 | ||
3041 | phba->sli.slistat.sli_intr++; | |
3042 | ||
3043 | /* | |
3044 | * Call the HBA to see if it is interrupting. If not, don't claim | |
3045 | * the interrupt | |
3046 | */ | |
3047 | ||
3048 | /* Ignore all interrupts during initialization. */ | |
3049 | if (unlikely(phba->hba_state < LPFC_LINK_DOWN)) | |
3050 | return IRQ_NONE; | |
3051 | ||
3052 | /* | |
3053 | * Read host attention register to determine interrupt source | |
3054 | * Clear Attention Sources, except Error Attention (to | |
3055 | * preserve status) and Link Attention | |
3056 | */ | |
3057 | spin_lock(phba->host->host_lock); | |
3058 | ha_copy = readl(phba->HAregaddr); | |
3059 | writel((ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr); | |
3060 | readl(phba->HAregaddr); /* flush */ | |
3061 | spin_unlock(phba->host->host_lock); | |
3062 | ||
3063 | if (unlikely(!ha_copy)) | |
3064 | return IRQ_NONE; | |
3065 | ||
3066 | work_ha_copy = ha_copy & phba->work_ha_mask; | |
3067 | ||
3068 | if (unlikely(work_ha_copy)) { | |
3069 | if (work_ha_copy & HA_LATT) { | |
3070 | if (phba->sli.sli_flag & LPFC_PROCESS_LA) { | |
3071 | /* | |
3072 | * Turn off Link Attention interrupts | |
3073 | * until CLEAR_LA done | |
3074 | */ | |
3075 | spin_lock(phba->host->host_lock); | |
3076 | phba->sli.sli_flag &= ~LPFC_PROCESS_LA; | |
3077 | control = readl(phba->HCregaddr); | |
3078 | control &= ~HC_LAINT_ENA; | |
3079 | writel(control, phba->HCregaddr); | |
3080 | readl(phba->HCregaddr); /* flush */ | |
3081 | spin_unlock(phba->host->host_lock); | |
3082 | } | |
3083 | else | |
3084 | work_ha_copy &= ~HA_LATT; | |
3085 | } | |
3086 | ||
3087 | if (work_ha_copy & ~(HA_ERATT|HA_MBATT|HA_LATT)) { | |
3088 | for (i = 0; i < phba->sli.num_rings; i++) { | |
3089 | if (work_ha_copy & (HA_RXATT << (4*i))) { | |
3090 | /* | |
3091 | * Turn off Slow Rings interrupts | |
3092 | */ | |
3093 | spin_lock(phba->host->host_lock); | |
3094 | control = readl(phba->HCregaddr); | |
3095 | control &= ~(HC_R0INT_ENA << i); | |
3096 | writel(control, phba->HCregaddr); | |
3097 | readl(phba->HCregaddr); /* flush */ | |
3098 | spin_unlock(phba->host->host_lock); | |
3099 | } | |
3100 | } | |
3101 | } | |
3102 | ||
3103 | if (work_ha_copy & HA_ERATT) { | |
3104 | phba->hba_state = LPFC_HBA_ERROR; | |
3105 | /* | |
3106 | * There was a link/board error. Read the | |
3107 | * status register to retrieve the error event | |
3108 | * and process it. | |
3109 | */ | |
3110 | phba->sli.slistat.err_attn_event++; | |
3111 | /* Save status info */ | |
3112 | phba->work_hs = readl(phba->HSregaddr); | |
3113 | phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); | |
3114 | phba->work_status[1] = readl(phba->MBslimaddr + 0xac); | |
3115 | ||
3116 | /* Clear Chip error bit */ | |
3117 | writel(HA_ERATT, phba->HAregaddr); | |
3118 | readl(phba->HAregaddr); /* flush */ | |
dea3101e | 3119 | } |
3120 | ||
3121 | spin_lock(phba->host->host_lock); | |
3122 | phba->work_ha |= work_ha_copy; | |
3123 | if (phba->work_wait) | |
3124 | wake_up(phba->work_wait); | |
3125 | spin_unlock(phba->host->host_lock); | |
3126 | } | |
3127 | ||
3128 | ha_copy &= ~(phba->work_ha_mask); | |
3129 | ||
3130 | /* | |
3131 | * Process all events on FCP ring. Take the optimized path for | |
3132 | * FCP IO. Any other IO is slow path and is handled by | |
3133 | * the worker thread. | |
3134 | */ | |
3135 | status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); | |
3136 | status >>= (4*LPFC_FCP_RING); | |
3137 | if (status & HA_RXATT) | |
3138 | lpfc_sli_handle_fast_ring_event(phba, | |
3139 | &phba->sli.ring[LPFC_FCP_RING], | |
3140 | status); | |
3141 | return IRQ_HANDLED; | |
3142 | ||
3143 | } /* lpfc_intr_handler */ |