blob: 645291efce0849db90d1d91b935a8fef1ec9e171 [file] [log] [blame]
dea31012005-04-17 16:05:31 -05001/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
James.Smart@Emulex.Comc44ce172005-06-25 10:34:39 -04003 * Fibre Channel Host Bus Adapters. *
Jamie Wellnitz41415862006-02-28 19:25:27 -05004 * Copyright (C) 2004-2006 Emulex. All rights reserved. *
James.Smart@Emulex.Comc44ce172005-06-25 10:34:39 -04005 * EMULEX and SLI are trademarks of Emulex. *
dea31012005-04-17 16:05:31 -05006 * www.emulex.com *
James.Smart@Emulex.Comc44ce172005-06-25 10:34:39 -04007 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
dea31012005-04-17 16:05:31 -05008 * *
9 * This program is free software; you can redistribute it and/or *
James.Smart@Emulex.Comc44ce172005-06-25 10:34:39 -040010 * 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. *
dea31012005-04-17 16:05:31 -050020 *******************************************************************/
21
dea31012005-04-17 16:05:31 -050022#include <linux/blkdev.h>
23#include <linux/pci.h>
24#include <linux/interrupt.h>
25#include <linux/delay.h>
26
James.Smart@Emulex.Com91886522005-08-10 15:03:09 -040027#include <scsi/scsi.h>
dea31012005-04-17 16:05:31 -050028#include <scsi/scsi_cmnd.h>
29#include <scsi/scsi_device.h>
30#include <scsi/scsi_host.h>
James.Smart@Emulex.Comf888ba32005-08-10 15:03:01 -040031#include <scsi/scsi_transport_fc.h>
dea31012005-04-17 16:05:31 -050032
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. */
61typedef 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
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -040068struct lpfc_iocbq *
69lpfc_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
James Bottomley604a3e32005-10-29 10:28:33 -050078void
79lpfc_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
dea31012005-04-17 16:05:31 -050090/*
91 * Translate the iocb command to an iocb command type used to decide the final
92 * disposition of each completed IOCB.
93 */
94static lpfc_iocb_type
95lpfc_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:
James Smartf5603512006-12-02 13:35:43 -0500120 case CMD_FCP_TSEND_CX:
121 case CMD_FCP_TRSP_CX:
122 case CMD_FCP_TRECEIVE_CX:
123 case CMD_FCP_AUTO_TRSP_CX:
dea31012005-04-17 16:05:31 -0500124 case CMD_ADAPTER_MSG:
125 case CMD_ADAPTER_DUMP:
126 case CMD_XMIT_SEQUENCE64_CR:
127 case CMD_XMIT_SEQUENCE64_CX:
128 case CMD_XMIT_BCAST64_CN:
129 case CMD_XMIT_BCAST64_CX:
130 case CMD_ELS_REQUEST64_CR:
131 case CMD_ELS_REQUEST64_CX:
132 case CMD_FCP_IWRITE64_CR:
133 case CMD_FCP_IWRITE64_CX:
134 case CMD_FCP_IREAD64_CR:
135 case CMD_FCP_IREAD64_CX:
136 case CMD_FCP_ICMND64_CR:
137 case CMD_FCP_ICMND64_CX:
James Smartf5603512006-12-02 13:35:43 -0500138 case CMD_FCP_TSEND64_CX:
139 case CMD_FCP_TRSP64_CX:
140 case CMD_FCP_TRECEIVE64_CX:
dea31012005-04-17 16:05:31 -0500141 case CMD_GEN_REQUEST64_CR:
142 case CMD_GEN_REQUEST64_CX:
143 case CMD_XMIT_ELS_RSP64_CX:
144 type = LPFC_SOL_IOCB;
145 break;
146 case CMD_ABORT_XRI_CN:
147 case CMD_ABORT_XRI_CX:
148 case CMD_CLOSE_XRI_CN:
149 case CMD_CLOSE_XRI_CX:
150 case CMD_XRI_ABORTED_CX:
151 case CMD_ABORT_MXRI64_CN:
152 type = LPFC_ABORT_IOCB;
153 break;
154 case CMD_RCV_SEQUENCE_CX:
155 case CMD_RCV_ELS_REQ_CX:
156 case CMD_RCV_SEQUENCE64_CX:
157 case CMD_RCV_ELS_REQ64_CX:
158 type = LPFC_UNSOL_IOCB;
159 break;
160 default:
161 type = LPFC_UNKNOWN_IOCB;
162 break;
163 }
164
165 return type;
166}
167
168static int
169lpfc_sli_ring_map(struct lpfc_hba * phba, LPFC_MBOXQ_t *pmb)
170{
171 struct lpfc_sli *psli = &phba->sli;
172 MAILBOX_t *pmbox = &pmb->mb;
173 int i, rc;
174
175 for (i = 0; i < psli->num_rings; i++) {
176 phba->hba_state = LPFC_INIT_MBX_CMDS;
177 lpfc_config_ring(phba, i, pmb);
178 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
179 if (rc != MBX_SUCCESS) {
180 lpfc_printf_log(phba,
181 KERN_ERR,
182 LOG_INIT,
183 "%d:0446 Adapter failed to init, "
184 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
185 "ring %d\n",
186 phba->brd_no,
187 pmbox->mbxCommand,
188 pmbox->mbxStatus,
189 i);
190 phba->hba_state = LPFC_HBA_ERROR;
191 return -ENXIO;
192 }
193 }
194 return 0;
195}
196
197static int
198lpfc_sli_ringtxcmpl_put(struct lpfc_hba * phba,
199 struct lpfc_sli_ring * pring, struct lpfc_iocbq * piocb)
200{
dea31012005-04-17 16:05:31 -0500201 list_add_tail(&piocb->list, &pring->txcmplq);
202 pring->txcmplq_cnt++;
203 if (unlikely(pring->ringno == LPFC_ELS_RING))
204 mod_timer(&phba->els_tmofunc,
205 jiffies + HZ * (phba->fc_ratov << 1));
206
dea31012005-04-17 16:05:31 -0500207 return (0);
208}
209
210static struct lpfc_iocbq *
211lpfc_sli_ringtx_get(struct lpfc_hba * phba, struct lpfc_sli_ring * pring)
212{
213 struct list_head *dlp;
214 struct lpfc_iocbq *cmd_iocb;
215
216 dlp = &pring->txq;
217 cmd_iocb = NULL;
218 list_remove_head((&pring->txq), cmd_iocb,
219 struct lpfc_iocbq,
220 list);
221 if (cmd_iocb) {
222 /* If the first ptr is not equal to the list header,
223 * deque the IOCBQ_t and return it.
224 */
225 pring->txq_cnt--;
226 }
227 return (cmd_iocb);
228}
229
230static IOCB_t *
231lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
232{
James.Smart@Emulex.Com4cc2da12005-06-25 10:34:00 -0400233 struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno];
dea31012005-04-17 16:05:31 -0500234 uint32_t max_cmd_idx = pring->numCiocb;
235 IOCB_t *iocb = NULL;
236
237 if ((pring->next_cmdidx == pring->cmdidx) &&
238 (++pring->next_cmdidx >= max_cmd_idx))
239 pring->next_cmdidx = 0;
240
241 if (unlikely(pring->local_getidx == pring->next_cmdidx)) {
242
243 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
244
245 if (unlikely(pring->local_getidx >= max_cmd_idx)) {
246 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
247 "%d:0315 Ring %d issue: portCmdGet %d "
248 "is bigger then cmd ring %d\n",
249 phba->brd_no, pring->ringno,
250 pring->local_getidx, max_cmd_idx);
251
252 phba->hba_state = LPFC_HBA_ERROR;
253 /*
254 * All error attention handlers are posted to
255 * worker thread
256 */
257 phba->work_ha |= HA_ERATT;
258 phba->work_hs = HS_FFER3;
259 if (phba->work_wait)
260 wake_up(phba->work_wait);
261
262 return NULL;
263 }
264
265 if (pring->local_getidx == pring->next_cmdidx)
266 return NULL;
267 }
268
269 iocb = IOCB_ENTRY(pring->cmdringaddr, pring->cmdidx);
270
271 return iocb;
272}
273
James Bottomley604a3e32005-10-29 10:28:33 -0500274uint16_t
275lpfc_sli_next_iotag(struct lpfc_hba * phba, struct lpfc_iocbq * iocbq)
dea31012005-04-17 16:05:31 -0500276{
James Bottomley604a3e32005-10-29 10:28:33 -0500277 struct lpfc_iocbq ** new_arr;
278 struct lpfc_iocbq ** old_arr;
279 size_t new_len;
280 struct lpfc_sli *psli = &phba->sli;
281 uint16_t iotag;
dea31012005-04-17 16:05:31 -0500282
James Bottomley604a3e32005-10-29 10:28:33 -0500283 spin_lock_irq(phba->host->host_lock);
284 iotag = psli->last_iotag;
285 if(++iotag < psli->iocbq_lookup_len) {
286 psli->last_iotag = iotag;
287 psli->iocbq_lookup[iotag] = iocbq;
288 spin_unlock_irq(phba->host->host_lock);
289 iocbq->iotag = iotag;
290 return iotag;
291 }
292 else if (psli->iocbq_lookup_len < (0xffff
293 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
294 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
295 spin_unlock_irq(phba->host->host_lock);
296 new_arr = kmalloc(new_len * sizeof (struct lpfc_iocbq *),
297 GFP_KERNEL);
298 if (new_arr) {
299 memset((char *)new_arr, 0,
300 new_len * sizeof (struct lpfc_iocbq *));
301 spin_lock_irq(phba->host->host_lock);
302 old_arr = psli->iocbq_lookup;
303 if (new_len <= psli->iocbq_lookup_len) {
304 /* highly unprobable case */
305 kfree(new_arr);
306 iotag = psli->last_iotag;
307 if(++iotag < psli->iocbq_lookup_len) {
308 psli->last_iotag = iotag;
309 psli->iocbq_lookup[iotag] = iocbq;
310 spin_unlock_irq(phba->host->host_lock);
311 iocbq->iotag = iotag;
312 return iotag;
313 }
314 spin_unlock_irq(phba->host->host_lock);
315 return 0;
316 }
317 if (psli->iocbq_lookup)
318 memcpy(new_arr, old_arr,
319 ((psli->last_iotag + 1) *
320 sizeof (struct lpfc_iocbq *)));
321 psli->iocbq_lookup = new_arr;
322 psli->iocbq_lookup_len = new_len;
323 psli->last_iotag = iotag;
324 psli->iocbq_lookup[iotag] = iocbq;
325 spin_unlock_irq(phba->host->host_lock);
326 iocbq->iotag = iotag;
327 kfree(old_arr);
328 return iotag;
329 }
James Smart8f6d98d2006-08-01 07:34:00 -0400330 } else
331 spin_unlock_irq(phba->host->host_lock);
dea31012005-04-17 16:05:31 -0500332
James Bottomley604a3e32005-10-29 10:28:33 -0500333 lpfc_printf_log(phba, KERN_ERR,LOG_SLI,
334 "%d:0318 Failed to allocate IOTAG.last IOTAG is %d\n",
335 phba->brd_no, psli->last_iotag);
dea31012005-04-17 16:05:31 -0500336
James Bottomley604a3e32005-10-29 10:28:33 -0500337 return 0;
dea31012005-04-17 16:05:31 -0500338}
339
340static void
341lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
342 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
343{
344 /*
James Bottomley604a3e32005-10-29 10:28:33 -0500345 * Set up an iotag
dea31012005-04-17 16:05:31 -0500346 */
James Bottomley604a3e32005-10-29 10:28:33 -0500347 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
dea31012005-04-17 16:05:31 -0500348
349 /*
350 * Issue iocb command to adapter
351 */
352 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, sizeof (IOCB_t));
353 wmb();
354 pring->stats.iocb_cmd++;
355
356 /*
357 * If there is no completion routine to call, we can release the
358 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
359 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
360 */
361 if (nextiocb->iocb_cmpl)
362 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
James Bottomley604a3e32005-10-29 10:28:33 -0500363 else
364 lpfc_sli_release_iocbq(phba, nextiocb);
dea31012005-04-17 16:05:31 -0500365
366 /*
367 * Let the HBA know what IOCB slot will be the next one the
368 * driver will put a command into.
369 */
370 pring->cmdidx = pring->next_cmdidx;
James.Smart@Emulex.Comf91b3922005-10-28 20:29:28 -0400371 writel(pring->cmdidx, phba->MBslimaddr
dea31012005-04-17 16:05:31 -0500372 + (SLIMOFF + (pring->ringno * 2)) * 4);
373}
374
375static void
376lpfc_sli_update_full_ring(struct lpfc_hba * phba,
377 struct lpfc_sli_ring *pring)
378{
379 int ringno = pring->ringno;
380
381 pring->flag |= LPFC_CALL_RING_AVAILABLE;
382
383 wmb();
384
385 /*
386 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
387 * The HBA will tell us when an IOCB entry is available.
388 */
389 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
390 readl(phba->CAregaddr); /* flush */
391
392 pring->stats.iocb_cmd_full++;
393}
394
395static void
396lpfc_sli_update_ring(struct lpfc_hba * phba,
397 struct lpfc_sli_ring *pring)
398{
399 int ringno = pring->ringno;
400
401 /*
402 * Tell the HBA that there is work to do in this ring.
403 */
404 wmb();
405 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
406 readl(phba->CAregaddr); /* flush */
407}
408
409static void
410lpfc_sli_resume_iocb(struct lpfc_hba * phba, struct lpfc_sli_ring * pring)
411{
412 IOCB_t *iocb;
413 struct lpfc_iocbq *nextiocb;
414
415 /*
416 * Check to see if:
417 * (a) there is anything on the txq to send
418 * (b) link is up
419 * (c) link attention events can be processed (fcp ring only)
420 * (d) IOCB processing is not blocked by the outstanding mbox command.
421 */
422 if (pring->txq_cnt &&
423 (phba->hba_state > LPFC_LINK_DOWN) &&
424 (pring->ringno != phba->sli.fcp_ring ||
425 phba->sli.sli_flag & LPFC_PROCESS_LA) &&
426 !(pring->flag & LPFC_STOP_IOCB_MBX)) {
427
428 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
429 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
430 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
431
432 if (iocb)
433 lpfc_sli_update_ring(phba, pring);
434 else
435 lpfc_sli_update_full_ring(phba, pring);
436 }
437
438 return;
439}
440
441/* lpfc_sli_turn_on_ring is only called by lpfc_sli_handle_mb_event below */
442static void
443lpfc_sli_turn_on_ring(struct lpfc_hba * phba, int ringno)
444{
James.Smart@Emulex.Com4cc2da12005-06-25 10:34:00 -0400445 struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[ringno];
dea31012005-04-17 16:05:31 -0500446
447 /* If the ring is active, flag it */
448 if (phba->sli.ring[ringno].cmdringaddr) {
449 if (phba->sli.ring[ringno].flag & LPFC_STOP_IOCB_MBX) {
450 phba->sli.ring[ringno].flag &= ~LPFC_STOP_IOCB_MBX;
451 /*
452 * Force update of the local copy of cmdGetInx
453 */
454 phba->sli.ring[ringno].local_getidx
455 = le32_to_cpu(pgp->cmdGetInx);
456 spin_lock_irq(phba->host->host_lock);
457 lpfc_sli_resume_iocb(phba, &phba->sli.ring[ringno]);
458 spin_unlock_irq(phba->host->host_lock);
459 }
460 }
461}
462
463static int
464lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
465{
466 uint8_t ret;
467
468 switch (mbxCommand) {
469 case MBX_LOAD_SM:
470 case MBX_READ_NV:
471 case MBX_WRITE_NV:
472 case MBX_RUN_BIU_DIAG:
473 case MBX_INIT_LINK:
474 case MBX_DOWN_LINK:
475 case MBX_CONFIG_LINK:
476 case MBX_CONFIG_RING:
477 case MBX_RESET_RING:
478 case MBX_READ_CONFIG:
479 case MBX_READ_RCONFIG:
480 case MBX_READ_SPARM:
481 case MBX_READ_STATUS:
482 case MBX_READ_RPI:
483 case MBX_READ_XRI:
484 case MBX_READ_REV:
485 case MBX_READ_LNK_STAT:
486 case MBX_REG_LOGIN:
487 case MBX_UNREG_LOGIN:
488 case MBX_READ_LA:
489 case MBX_CLEAR_LA:
490 case MBX_DUMP_MEMORY:
491 case MBX_DUMP_CONTEXT:
492 case MBX_RUN_DIAGS:
493 case MBX_RESTART:
494 case MBX_UPDATE_CFG:
495 case MBX_DOWN_LOAD:
496 case MBX_DEL_LD_ENTRY:
497 case MBX_RUN_PROGRAM:
498 case MBX_SET_MASK:
499 case MBX_SET_SLIM:
500 case MBX_UNREG_D_ID:
Jamie Wellnitz41415862006-02-28 19:25:27 -0500501 case MBX_KILL_BOARD:
dea31012005-04-17 16:05:31 -0500502 case MBX_CONFIG_FARP:
Jamie Wellnitz41415862006-02-28 19:25:27 -0500503 case MBX_BEACON:
dea31012005-04-17 16:05:31 -0500504 case MBX_LOAD_AREA:
505 case MBX_RUN_BIU_DIAG64:
506 case MBX_CONFIG_PORT:
507 case MBX_READ_SPARM64:
508 case MBX_READ_RPI64:
509 case MBX_REG_LOGIN64:
510 case MBX_READ_LA64:
511 case MBX_FLASH_WR_ULA:
512 case MBX_SET_DEBUG:
513 case MBX_LOAD_EXP_ROM:
514 ret = mbxCommand;
515 break;
516 default:
517 ret = MBX_SHUTDOWN;
518 break;
519 }
520 return (ret);
521}
522static void
523lpfc_sli_wake_mbox_wait(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
524{
525 wait_queue_head_t *pdone_q;
526
527 /*
528 * If pdone_q is empty, the driver thread gave up waiting and
529 * continued running.
530 */
James Smart7054a602007-04-25 09:52:34 -0400531 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
dea31012005-04-17 16:05:31 -0500532 pdone_q = (wait_queue_head_t *) pmboxq->context1;
533 if (pdone_q)
534 wake_up_interruptible(pdone_q);
535 return;
536}
537
538void
539lpfc_sli_def_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
540{
541 struct lpfc_dmabuf *mp;
James Smart7054a602007-04-25 09:52:34 -0400542 uint16_t rpi;
543 int rc;
544
dea31012005-04-17 16:05:31 -0500545 mp = (struct lpfc_dmabuf *) (pmb->context1);
James Smart7054a602007-04-25 09:52:34 -0400546
dea31012005-04-17 16:05:31 -0500547 if (mp) {
548 lpfc_mbuf_free(phba, mp->virt, mp->phys);
549 kfree(mp);
550 }
James Smart7054a602007-04-25 09:52:34 -0400551
552 /*
553 * If a REG_LOGIN succeeded after node is destroyed or node
554 * is in re-discovery driver need to cleanup the RPI.
555 */
556 if (!(phba->fc_flag & FC_UNLOADING) &&
557 (pmb->mb.mbxCommand == MBX_REG_LOGIN64) &&
558 (!pmb->mb.mbxStatus)) {
559
560 rpi = pmb->mb.un.varWords[0];
561 lpfc_unreg_login(phba, rpi, pmb);
562 pmb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
563 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
564 if (rc != MBX_NOT_FINISHED)
565 return;
566 }
567
dea31012005-04-17 16:05:31 -0500568 mempool_free( pmb, phba->mbox_mem_pool);
569 return;
570}
571
572int
573lpfc_sli_handle_mb_event(struct lpfc_hba * phba)
574{
575 MAILBOX_t *mbox;
576 MAILBOX_t *pmbox;
577 LPFC_MBOXQ_t *pmb;
578 struct lpfc_sli *psli;
579 int i, rc;
580 uint32_t process_next;
581
582 psli = &phba->sli;
583 /* We should only get here if we are in SLI2 mode */
584 if (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE)) {
585 return (1);
586 }
587
588 phba->sli.slistat.mbox_event++;
589
590 /* Get a Mailbox buffer to setup mailbox commands for callback */
591 if ((pmb = phba->sli.mbox_active)) {
592 pmbox = &pmb->mb;
James.Smart@Emulex.Com4cc2da12005-06-25 10:34:00 -0400593 mbox = &phba->slim2p->mbx;
dea31012005-04-17 16:05:31 -0500594
595 /* First check out the status word */
596 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof (uint32_t));
597
598 /* Sanity check to ensure the host owns the mailbox */
599 if (pmbox->mbxOwner != OWN_HOST) {
600 /* Lets try for a while */
601 for (i = 0; i < 10240; i++) {
602 /* First copy command data */
603 lpfc_sli_pcimem_bcopy(mbox, pmbox,
604 sizeof (uint32_t));
605 if (pmbox->mbxOwner == OWN_HOST)
606 goto mbout;
607 }
608 /* Stray Mailbox Interrupt, mbxCommand <cmd> mbxStatus
609 <status> */
610 lpfc_printf_log(phba,
James Smartb4c02652006-07-06 15:50:43 -0400611 KERN_WARNING,
dea31012005-04-17 16:05:31 -0500612 LOG_MBOX | LOG_SLI,
613 "%d:0304 Stray Mailbox Interrupt "
614 "mbxCommand x%x mbxStatus x%x\n",
615 phba->brd_no,
616 pmbox->mbxCommand,
617 pmbox->mbxStatus);
618
619 spin_lock_irq(phba->host->host_lock);
620 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
621 spin_unlock_irq(phba->host->host_lock);
622 return (1);
623 }
624
625 mbout:
626 del_timer_sync(&phba->sli.mbox_tmo);
627 phba->work_hba_events &= ~WORKER_MBOX_TMO;
628
629 /*
630 * It is a fatal error if unknown mbox command completion.
631 */
632 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
633 MBX_SHUTDOWN) {
634
635 /* Unknow mailbox command compl */
636 lpfc_printf_log(phba,
637 KERN_ERR,
638 LOG_MBOX | LOG_SLI,
639 "%d:0323 Unknown Mailbox command %x Cmpl\n",
640 phba->brd_no,
641 pmbox->mbxCommand);
642 phba->hba_state = LPFC_HBA_ERROR;
643 phba->work_hs = HS_FFER3;
644 lpfc_handle_eratt(phba);
645 return (0);
646 }
647
648 phba->sli.mbox_active = NULL;
649 if (pmbox->mbxStatus) {
650 phba->sli.slistat.mbox_stat_err++;
651 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
652 /* Mbox cmd cmpl error - RETRYing */
653 lpfc_printf_log(phba,
654 KERN_INFO,
655 LOG_MBOX | LOG_SLI,
656 "%d:0305 Mbox cmd cmpl error - "
657 "RETRYing Data: x%x x%x x%x x%x\n",
658 phba->brd_no,
659 pmbox->mbxCommand,
660 pmbox->mbxStatus,
661 pmbox->un.varWords[0],
662 phba->hba_state);
663 pmbox->mbxStatus = 0;
664 pmbox->mbxOwner = OWN_HOST;
665 spin_lock_irq(phba->host->host_lock);
666 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
667 spin_unlock_irq(phba->host->host_lock);
668 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
669 if (rc == MBX_SUCCESS)
670 return (0);
671 }
672 }
673
674 /* Mailbox cmd <cmd> Cmpl <cmpl> */
675 lpfc_printf_log(phba,
676 KERN_INFO,
677 LOG_MBOX | LOG_SLI,
678 "%d:0307 Mailbox cmd x%x Cmpl x%p "
679 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n",
680 phba->brd_no,
681 pmbox->mbxCommand,
682 pmb->mbox_cmpl,
683 *((uint32_t *) pmbox),
684 pmbox->un.varWords[0],
685 pmbox->un.varWords[1],
686 pmbox->un.varWords[2],
687 pmbox->un.varWords[3],
688 pmbox->un.varWords[4],
689 pmbox->un.varWords[5],
690 pmbox->un.varWords[6],
691 pmbox->un.varWords[7]);
692
693 if (pmb->mbox_cmpl) {
694 lpfc_sli_pcimem_bcopy(mbox, pmbox, MAILBOX_CMD_SIZE);
695 pmb->mbox_cmpl(phba,pmb);
696 }
697 }
698
699
700 do {
701 process_next = 0; /* by default don't loop */
702 spin_lock_irq(phba->host->host_lock);
703 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
704
705 /* Process next mailbox command if there is one */
706 if ((pmb = lpfc_mbox_get(phba))) {
707 spin_unlock_irq(phba->host->host_lock);
708 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
709 if (rc == MBX_NOT_FINISHED) {
710 pmb->mb.mbxStatus = MBX_NOT_FINISHED;
711 pmb->mbox_cmpl(phba,pmb);
712 process_next = 1;
713 continue; /* loop back */
714 }
715 } else {
716 spin_unlock_irq(phba->host->host_lock);
717 /* Turn on IOCB processing */
James Smart1dcb58e2007-04-25 09:51:30 -0400718 for (i = 0; i < phba->sli.num_rings; i++)
dea31012005-04-17 16:05:31 -0500719 lpfc_sli_turn_on_ring(phba, i);
dea31012005-04-17 16:05:31 -0500720 }
721
722 } while (process_next);
723
724 return (0);
725}
726static int
727lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
728 struct lpfc_iocbq *saveq)
729{
730 IOCB_t * irsp;
731 WORD5 * w5p;
732 uint32_t Rctl, Type;
733 uint32_t match, i;
734
735 match = 0;
736 irsp = &(saveq->iocb);
737 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX)
738 || (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX)) {
739 Rctl = FC_ELS_REQ;
740 Type = FC_ELS_DATA;
741 } else {
742 w5p =
743 (WORD5 *) & (saveq->iocb.un.
744 ulpWord[5]);
745 Rctl = w5p->hcsw.Rctl;
746 Type = w5p->hcsw.Type;
747
748 /* Firmware Workaround */
749 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
750 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX)) {
751 Rctl = FC_ELS_REQ;
752 Type = FC_ELS_DATA;
753 w5p->hcsw.Rctl = Rctl;
754 w5p->hcsw.Type = Type;
755 }
756 }
757 /* unSolicited Responses */
758 if (pring->prt[0].profile) {
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -0500759 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
760 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
761 saveq);
dea31012005-04-17 16:05:31 -0500762 match = 1;
763 } else {
764 /* We must search, based on rctl / type
765 for the right routine */
766 for (i = 0; i < pring->num_mask;
767 i++) {
768 if ((pring->prt[i].rctl ==
769 Rctl)
770 && (pring->prt[i].
771 type == Type)) {
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -0500772 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
773 (pring->prt[i].lpfc_sli_rcv_unsol_event)
774 (phba, pring, saveq);
dea31012005-04-17 16:05:31 -0500775 match = 1;
776 break;
777 }
778 }
779 }
780 if (match == 0) {
781 /* Unexpected Rctl / Type received */
782 /* Ring <ringno> handler: unexpected
783 Rctl <Rctl> Type <Type> received */
784 lpfc_printf_log(phba,
785 KERN_WARNING,
786 LOG_SLI,
787 "%d:0313 Ring %d handler: unexpected Rctl x%x "
788 "Type x%x received \n",
789 phba->brd_no,
790 pring->ringno,
791 Rctl,
792 Type);
793 }
794 return(1);
795}
796
797static struct lpfc_iocbq *
James Bottomley604a3e32005-10-29 10:28:33 -0500798lpfc_sli_iocbq_lookup(struct lpfc_hba * phba,
799 struct lpfc_sli_ring * pring,
800 struct lpfc_iocbq * prspiocb)
dea31012005-04-17 16:05:31 -0500801{
dea31012005-04-17 16:05:31 -0500802 struct lpfc_iocbq *cmd_iocb = NULL;
803 uint16_t iotag;
804
James Bottomley604a3e32005-10-29 10:28:33 -0500805 iotag = prspiocb->iocb.ulpIoTag;
dea31012005-04-17 16:05:31 -0500806
James Bottomley604a3e32005-10-29 10:28:33 -0500807 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
808 cmd_iocb = phba->sli.iocbq_lookup[iotag];
809 list_del(&cmd_iocb->list);
810 pring->txcmplq_cnt--;
811 return cmd_iocb;
dea31012005-04-17 16:05:31 -0500812 }
813
dea31012005-04-17 16:05:31 -0500814 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Bottomley604a3e32005-10-29 10:28:33 -0500815 "%d:0317 iotag x%x is out off "
816 "range: max iotag x%x wd0 x%x\n",
817 phba->brd_no, iotag,
818 phba->sli.last_iotag,
819 *(((uint32_t *) &prspiocb->iocb) + 7));
dea31012005-04-17 16:05:31 -0500820 return NULL;
821}
822
823static int
824lpfc_sli_process_sol_iocb(struct lpfc_hba * phba, struct lpfc_sli_ring * pring,
825 struct lpfc_iocbq *saveq)
826{
827 struct lpfc_iocbq * cmdiocbp;
828 int rc = 1;
829 unsigned long iflag;
830
831 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
832 spin_lock_irqsave(phba->host->host_lock, iflag);
James Bottomley604a3e32005-10-29 10:28:33 -0500833 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
dea31012005-04-17 16:05:31 -0500834 if (cmdiocbp) {
835 if (cmdiocbp->iocb_cmpl) {
836 /*
837 * Post all ELS completions to the worker thread.
838 * All other are passed to the completion callback.
839 */
840 if (pring->ringno == LPFC_ELS_RING) {
James Smart07951072007-04-25 09:51:38 -0400841 if (cmdiocbp->iocb_flag & LPFC_DRIVER_ABORTED) {
842 cmdiocbp->iocb_flag &=
843 ~LPFC_DRIVER_ABORTED;
844 saveq->iocb.ulpStatus =
845 IOSTAT_LOCAL_REJECT;
846 saveq->iocb.un.ulpWord[4] =
847 IOERR_SLI_ABORTED;
848 }
dea31012005-04-17 16:05:31 -0500849 spin_unlock_irqrestore(phba->host->host_lock,
850 iflag);
851 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
852 spin_lock_irqsave(phba->host->host_lock, iflag);
853 }
854 else {
dea31012005-04-17 16:05:31 -0500855 spin_unlock_irqrestore(phba->host->host_lock,
856 iflag);
857 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
858 spin_lock_irqsave(phba->host->host_lock, iflag);
859 }
James Bottomley604a3e32005-10-29 10:28:33 -0500860 } else
861 lpfc_sli_release_iocbq(phba, cmdiocbp);
dea31012005-04-17 16:05:31 -0500862 } else {
863 /*
864 * Unknown initiating command based on the response iotag.
865 * This could be the case on the ELS ring because of
866 * lpfc_els_abort().
867 */
868 if (pring->ringno != LPFC_ELS_RING) {
869 /*
870 * Ring <ringno> handler: unexpected completion IoTag
871 * <IoTag>
872 */
873 lpfc_printf_log(phba,
874 KERN_WARNING,
875 LOG_SLI,
876 "%d:0322 Ring %d handler: unexpected "
877 "completion IoTag x%x Data: x%x x%x x%x x%x\n",
878 phba->brd_no,
879 pring->ringno,
880 saveq->iocb.ulpIoTag,
881 saveq->iocb.ulpStatus,
882 saveq->iocb.un.ulpWord[4],
883 saveq->iocb.ulpCommand,
884 saveq->iocb.ulpContext);
885 }
886 }
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -0400887
dea31012005-04-17 16:05:31 -0500888 spin_unlock_irqrestore(phba->host->host_lock, iflag);
889 return rc;
890}
891
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -0500892static void lpfc_sli_rsp_pointers_error(struct lpfc_hba * phba,
893 struct lpfc_sli_ring * pring)
894{
895 struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno];
896 /*
897 * Ring <ringno> handler: portRspPut <portRspPut> is bigger then
898 * rsp ring <portRspMax>
899 */
900 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
901 "%d:0312 Ring %d handler: portRspPut %d "
902 "is bigger then rsp ring %d\n",
903 phba->brd_no, pring->ringno,
904 le32_to_cpu(pgp->rspPutInx),
905 pring->numRiocb);
906
907 phba->hba_state = LPFC_HBA_ERROR;
908
909 /*
910 * All error attention handlers are posted to
911 * worker thread
912 */
913 phba->work_ha |= HA_ERATT;
914 phba->work_hs = HS_FFER3;
915 if (phba->work_wait)
916 wake_up(phba->work_wait);
917
918 return;
919}
920
921void lpfc_sli_poll_fcp_ring(struct lpfc_hba * phba)
922{
923 struct lpfc_sli * psli = &phba->sli;
924 struct lpfc_sli_ring * pring = &psli->ring[LPFC_FCP_RING];
925 IOCB_t *irsp = NULL;
926 IOCB_t *entry = NULL;
927 struct lpfc_iocbq *cmdiocbq = NULL;
928 struct lpfc_iocbq rspiocbq;
929 struct lpfc_pgp *pgp;
930 uint32_t status;
931 uint32_t portRspPut, portRspMax;
932 int type;
933 uint32_t rsp_cmpl = 0;
934 void __iomem *to_slim;
935 uint32_t ha_copy;
936
937 pring->stats.iocb_event++;
938
939 /* The driver assumes SLI-2 mode */
940 pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno];
941
942 /*
943 * The next available response entry should never exceed the maximum
944 * entries. If it does, treat it as an adapter hardware error.
945 */
946 portRspMax = pring->numRiocb;
947 portRspPut = le32_to_cpu(pgp->rspPutInx);
948 if (unlikely(portRspPut >= portRspMax)) {
949 lpfc_sli_rsp_pointers_error(phba, pring);
950 return;
951 }
952
953 rmb();
954 while (pring->rspidx != portRspPut) {
955
956 entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx);
957
958 if (++pring->rspidx >= portRspMax)
959 pring->rspidx = 0;
960
961 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
962 (uint32_t *) &rspiocbq.iocb,
963 sizeof (IOCB_t));
964 irsp = &rspiocbq.iocb;
965 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
966 pring->stats.iocb_rsp++;
967 rsp_cmpl++;
968
969 if (unlikely(irsp->ulpStatus)) {
970 /* Rsp ring <ringno> error: IOCB */
971 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
972 "%d:0326 Rsp Ring %d error: IOCB Data: "
973 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
974 phba->brd_no, pring->ringno,
975 irsp->un.ulpWord[0],
976 irsp->un.ulpWord[1],
977 irsp->un.ulpWord[2],
978 irsp->un.ulpWord[3],
979 irsp->un.ulpWord[4],
980 irsp->un.ulpWord[5],
981 *(((uint32_t *) irsp) + 6),
982 *(((uint32_t *) irsp) + 7));
983 }
984
985 switch (type) {
986 case LPFC_ABORT_IOCB:
987 case LPFC_SOL_IOCB:
988 /*
989 * Idle exchange closed via ABTS from port. No iocb
990 * resources need to be recovered.
991 */
992 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
James Smartdca94792006-08-01 07:34:08 -0400993 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
994 "%d:0314 IOCB cmd 0x%x"
995 " processed. Skipping"
996 " completion", phba->brd_no,
997 irsp->ulpCommand);
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -0500998 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
dea31012005-04-17 16:05:31 -05001070/*
1071 * This routine presumes LPFC_FCP_RING handling and doesn't bother
1072 * to check it explicitly.
1073 */
1074static int
1075lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba,
1076 struct lpfc_sli_ring * pring, uint32_t mask)
1077{
James.Smart@Emulex.Com4cc2da12005-06-25 10:34:00 -04001078 struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno];
dea31012005-04-17 16:05:31 -05001079 IOCB_t *irsp = NULL;
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04001080 IOCB_t *entry = NULL;
dea31012005-04-17 16:05:31 -05001081 struct lpfc_iocbq *cmdiocbq = NULL;
1082 struct lpfc_iocbq rspiocbq;
dea31012005-04-17 16:05:31 -05001083 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
dea31012005-04-17 16:05:31 -05001094 /*
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)) {
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05001101 lpfc_sli_rsp_pointers_error(phba, pring);
dea31012005-04-17 16:05:31 -05001102 spin_unlock_irqrestore(phba->host->host_lock, iflag);
1103 return 1;
1104 }
1105
1106 rmb();
1107 while (pring->rspidx != portRspPut) {
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04001108 /*
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 */
James.Smart@Emulex.Com4a0dfcd2005-10-28 20:29:56 -04001113 entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx);
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05001114
1115 if (++pring->rspidx >= portRspMax)
1116 pring->rspidx = 0;
1117
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04001118 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
1119 (uint32_t *) &rspiocbq.iocb,
1120 sizeof (IOCB_t));
James Smarta4bc3372006-12-02 13:34:16 -05001121 INIT_LIST_HEAD(&(rspiocbq.list));
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04001122 irsp = &rspiocbq.iocb;
1123
dea31012005-04-17 16:05:31 -05001124 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
1125 pring->stats.iocb_rsp++;
1126 rsp_cmpl++;
1127
1128 if (unlikely(irsp->ulpStatus)) {
1129 /* Rsp ring <ringno> error: IOCB */
1130 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smartdca94792006-08-01 07:34:08 -04001131 "%d:0336 Rsp Ring %d error: IOCB Data: "
dea31012005-04-17 16:05:31 -05001132 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
1133 phba->brd_no, pring->ringno,
1134 irsp->un.ulpWord[0], irsp->un.ulpWord[1],
1135 irsp->un.ulpWord[2], irsp->un.ulpWord[3],
1136 irsp->un.ulpWord[4], irsp->un.ulpWord[5],
1137 *(((uint32_t *) irsp) + 6),
1138 *(((uint32_t *) irsp) + 7));
1139 }
1140
1141 switch (type) {
1142 case LPFC_ABORT_IOCB:
1143 case LPFC_SOL_IOCB:
1144 /*
1145 * Idle exchange closed via ABTS from port. No iocb
1146 * resources need to be recovered.
1147 */
1148 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
James Smartdca94792006-08-01 07:34:08 -04001149 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
1150 "%d:0333 IOCB cmd 0x%x"
1151 " processed. Skipping"
1152 " completion\n", phba->brd_no,
1153 irsp->ulpCommand);
dea31012005-04-17 16:05:31 -05001154 break;
1155 }
1156
James Bottomley604a3e32005-10-29 10:28:33 -05001157 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
1158 &rspiocbq);
dea31012005-04-17 16:05:31 -05001159 if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) {
Jamie Wellnitzb8086082006-02-28 22:33:12 -05001160 if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) {
1161 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
1162 &rspiocbq);
1163 } else {
1164 spin_unlock_irqrestore(
1165 phba->host->host_lock, iflag);
1166 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
1167 &rspiocbq);
1168 spin_lock_irqsave(phba->host->host_lock,
1169 iflag);
1170 }
dea31012005-04-17 16:05:31 -05001171 }
1172 break;
James Smarta4bc3372006-12-02 13:34:16 -05001173 case LPFC_UNSOL_IOCB:
1174 spin_unlock_irqrestore(phba->host->host_lock, iflag);
1175 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
1176 spin_lock_irqsave(phba->host->host_lock, iflag);
1177 break;
dea31012005-04-17 16:05:31 -05001178 default:
1179 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
1180 char adaptermsg[LPFC_MAX_ADPTMSG];
1181 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
1182 memcpy(&adaptermsg[0], (uint8_t *) irsp,
1183 MAX_MSG_DATA);
1184 dev_warn(&((phba->pcidev)->dev), "lpfc%d: %s",
1185 phba->brd_no, adaptermsg);
1186 } else {
1187 /* Unknown IOCB command */
1188 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smartdca94792006-08-01 07:34:08 -04001189 "%d:0334 Unknown IOCB command "
dea31012005-04-17 16:05:31 -05001190 "Data: x%x, x%x x%x x%x x%x\n",
1191 phba->brd_no, type, irsp->ulpCommand,
1192 irsp->ulpStatus, irsp->ulpIoTag,
1193 irsp->ulpContext);
1194 }
1195 break;
1196 }
1197
1198 /*
1199 * The response IOCB has been processed. Update the ring
1200 * pointer in SLIM. If the port response put pointer has not
1201 * been updated, sync the pgp->rspPutInx and fetch the new port
1202 * response put pointer.
1203 */
dea31012005-04-17 16:05:31 -05001204 to_slim = phba->MBslimaddr +
1205 (SLIMOFF + (pring->ringno * 2) + 1) * 4;
James.Smart@Emulex.Comf91b3922005-10-28 20:29:28 -04001206 writel(pring->rspidx, to_slim);
dea31012005-04-17 16:05:31 -05001207
1208 if (pring->rspidx == portRspPut)
1209 portRspPut = le32_to_cpu(pgp->rspPutInx);
1210 }
1211
1212 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
1213 pring->stats.iocb_rsp_full++;
1214 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
1215 writel(status, phba->CAregaddr);
1216 readl(phba->CAregaddr);
1217 }
1218 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
1219 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
1220 pring->stats.iocb_cmd_empty++;
1221
1222 /* Force update of the local copy of cmdGetInx */
1223 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
1224 lpfc_sli_resume_iocb(phba, pring);
1225
1226 if ((pring->lpfc_sli_cmd_available))
1227 (pring->lpfc_sli_cmd_available) (phba, pring);
1228
1229 }
1230
1231 spin_unlock_irqrestore(phba->host->host_lock, iflag);
1232 return rc;
1233}
1234
1235
1236int
1237lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba,
1238 struct lpfc_sli_ring * pring, uint32_t mask)
1239{
1240 IOCB_t *entry;
1241 IOCB_t *irsp = NULL;
1242 struct lpfc_iocbq *rspiocbp = NULL;
1243 struct lpfc_iocbq *next_iocb;
1244 struct lpfc_iocbq *cmdiocbp;
1245 struct lpfc_iocbq *saveq;
James.Smart@Emulex.Com4cc2da12005-06-25 10:34:00 -04001246 struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno];
dea31012005-04-17 16:05:31 -05001247 uint8_t iocb_cmd_type;
1248 lpfc_iocb_type type;
1249 uint32_t status, free_saveq;
1250 uint32_t portRspPut, portRspMax;
1251 int rc = 1;
1252 unsigned long iflag;
1253 void __iomem *to_slim;
1254
1255 spin_lock_irqsave(phba->host->host_lock, iflag);
1256 pring->stats.iocb_event++;
1257
dea31012005-04-17 16:05:31 -05001258 /*
1259 * The next available response entry should never exceed the maximum
1260 * entries. If it does, treat it as an adapter hardware error.
1261 */
1262 portRspMax = pring->numRiocb;
1263 portRspPut = le32_to_cpu(pgp->rspPutInx);
1264 if (portRspPut >= portRspMax) {
1265 /*
1266 * Ring <ringno> handler: portRspPut <portRspPut> is bigger then
1267 * rsp ring <portRspMax>
1268 */
1269 lpfc_printf_log(phba,
1270 KERN_ERR,
1271 LOG_SLI,
James Smartdca94792006-08-01 07:34:08 -04001272 "%d:0303 Ring %d handler: portRspPut %d "
dea31012005-04-17 16:05:31 -05001273 "is bigger then rsp ring %d\n",
1274 phba->brd_no,
1275 pring->ringno, portRspPut, portRspMax);
1276
1277 phba->hba_state = LPFC_HBA_ERROR;
1278 spin_unlock_irqrestore(phba->host->host_lock, iflag);
1279
1280 phba->work_hs = HS_FFER3;
1281 lpfc_handle_eratt(phba);
1282
1283 return 1;
1284 }
1285
1286 rmb();
dea31012005-04-17 16:05:31 -05001287 while (pring->rspidx != portRspPut) {
1288 /*
1289 * Build a completion list and call the appropriate handler.
1290 * The process is to get the next available response iocb, get
1291 * a free iocb from the list, copy the response data into the
1292 * free iocb, insert to the continuation list, and update the
1293 * next response index to slim. This process makes response
1294 * iocb's in the ring available to DMA as fast as possible but
1295 * pays a penalty for a copy operation. Since the iocb is
1296 * only 32 bytes, this penalty is considered small relative to
1297 * the PCI reads for register values and a slim write. When
1298 * the ulpLe field is set, the entire Command has been
1299 * received.
1300 */
1301 entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx);
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04001302 rspiocbp = lpfc_sli_get_iocbq(phba);
dea31012005-04-17 16:05:31 -05001303 if (rspiocbp == NULL) {
1304 printk(KERN_ERR "%s: out of buffers! Failing "
1305 "completion.\n", __FUNCTION__);
1306 break;
1307 }
1308
1309 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb, sizeof (IOCB_t));
1310 irsp = &rspiocbp->iocb;
1311
1312 if (++pring->rspidx >= portRspMax)
1313 pring->rspidx = 0;
1314
1315 to_slim = phba->MBslimaddr + (SLIMOFF + (pring->ringno * 2)
1316 + 1) * 4;
James.Smart@Emulex.Comf91b3922005-10-28 20:29:28 -04001317 writel(pring->rspidx, to_slim);
dea31012005-04-17 16:05:31 -05001318
1319 if (list_empty(&(pring->iocb_continueq))) {
1320 list_add(&rspiocbp->list, &(pring->iocb_continueq));
1321 } else {
1322 list_add_tail(&rspiocbp->list,
1323 &(pring->iocb_continueq));
1324 }
1325
1326 pring->iocb_continueq_cnt++;
1327 if (irsp->ulpLe) {
1328 /*
1329 * By default, the driver expects to free all resources
1330 * associated with this iocb completion.
1331 */
1332 free_saveq = 1;
1333 saveq = list_get_first(&pring->iocb_continueq,
1334 struct lpfc_iocbq, list);
1335 irsp = &(saveq->iocb);
1336 list_del_init(&pring->iocb_continueq);
1337 pring->iocb_continueq_cnt = 0;
1338
1339 pring->stats.iocb_rsp++;
1340
1341 if (irsp->ulpStatus) {
1342 /* Rsp ring <ringno> error: IOCB */
1343 lpfc_printf_log(phba,
1344 KERN_WARNING,
1345 LOG_SLI,
1346 "%d:0328 Rsp Ring %d error: IOCB Data: "
1347 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
1348 phba->brd_no,
1349 pring->ringno,
1350 irsp->un.ulpWord[0],
1351 irsp->un.ulpWord[1],
1352 irsp->un.ulpWord[2],
1353 irsp->un.ulpWord[3],
1354 irsp->un.ulpWord[4],
1355 irsp->un.ulpWord[5],
1356 *(((uint32_t *) irsp) + 6),
1357 *(((uint32_t *) irsp) + 7));
1358 }
1359
1360 /*
1361 * Fetch the IOCB command type and call the correct
1362 * completion routine. Solicited and Unsolicited
1363 * IOCBs on the ELS ring get freed back to the
1364 * lpfc_iocb_list by the discovery kernel thread.
1365 */
1366 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
1367 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
1368 if (type == LPFC_SOL_IOCB) {
1369 spin_unlock_irqrestore(phba->host->host_lock,
1370 iflag);
1371 rc = lpfc_sli_process_sol_iocb(phba, pring,
1372 saveq);
1373 spin_lock_irqsave(phba->host->host_lock, iflag);
1374 } else if (type == LPFC_UNSOL_IOCB) {
1375 spin_unlock_irqrestore(phba->host->host_lock,
1376 iflag);
1377 rc = lpfc_sli_process_unsol_iocb(phba, pring,
1378 saveq);
1379 spin_lock_irqsave(phba->host->host_lock, iflag);
1380 } else if (type == LPFC_ABORT_IOCB) {
1381 if ((irsp->ulpCommand != CMD_XRI_ABORTED_CX) &&
1382 ((cmdiocbp =
James Bottomley604a3e32005-10-29 10:28:33 -05001383 lpfc_sli_iocbq_lookup(phba, pring,
1384 saveq)))) {
dea31012005-04-17 16:05:31 -05001385 /* Call the specified completion
1386 routine */
1387 if (cmdiocbp->iocb_cmpl) {
1388 spin_unlock_irqrestore(
1389 phba->host->host_lock,
1390 iflag);
1391 (cmdiocbp->iocb_cmpl) (phba,
1392 cmdiocbp, saveq);
1393 spin_lock_irqsave(
1394 phba->host->host_lock,
1395 iflag);
James Bottomley604a3e32005-10-29 10:28:33 -05001396 } else
1397 lpfc_sli_release_iocbq(phba,
1398 cmdiocbp);
dea31012005-04-17 16:05:31 -05001399 }
1400 } else if (type == LPFC_UNKNOWN_IOCB) {
1401 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
1402
1403 char adaptermsg[LPFC_MAX_ADPTMSG];
1404
1405 memset(adaptermsg, 0,
1406 LPFC_MAX_ADPTMSG);
1407 memcpy(&adaptermsg[0], (uint8_t *) irsp,
1408 MAX_MSG_DATA);
1409 dev_warn(&((phba->pcidev)->dev),
1410 "lpfc%d: %s",
1411 phba->brd_no, adaptermsg);
1412 } else {
1413 /* Unknown IOCB command */
1414 lpfc_printf_log(phba,
1415 KERN_ERR,
1416 LOG_SLI,
James Smartdca94792006-08-01 07:34:08 -04001417 "%d:0335 Unknown IOCB command "
dea31012005-04-17 16:05:31 -05001418 "Data: x%x x%x x%x x%x\n",
1419 phba->brd_no,
1420 irsp->ulpCommand,
1421 irsp->ulpStatus,
1422 irsp->ulpIoTag,
1423 irsp->ulpContext);
1424 }
1425 }
1426
1427 if (free_saveq) {
1428 if (!list_empty(&saveq->list)) {
1429 list_for_each_entry_safe(rspiocbp,
1430 next_iocb,
1431 &saveq->list,
1432 list) {
James Smart8f6d98d2006-08-01 07:34:00 -04001433 list_del(&rspiocbp->list);
James Bottomley604a3e32005-10-29 10:28:33 -05001434 lpfc_sli_release_iocbq(phba,
1435 rspiocbp);
dea31012005-04-17 16:05:31 -05001436 }
1437 }
James Bottomley604a3e32005-10-29 10:28:33 -05001438 lpfc_sli_release_iocbq(phba, saveq);
dea31012005-04-17 16:05:31 -05001439 }
1440 }
1441
1442 /*
1443 * If the port response put pointer has not been updated, sync
1444 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
1445 * response put pointer.
1446 */
1447 if (pring->rspidx == portRspPut) {
1448 portRspPut = le32_to_cpu(pgp->rspPutInx);
1449 }
1450 } /* while (pring->rspidx != portRspPut) */
1451
1452 if ((rspiocbp != 0) && (mask & HA_R0RE_REQ)) {
1453 /* At least one response entry has been freed */
1454 pring->stats.iocb_rsp_full++;
1455 /* SET RxRE_RSP in Chip Att register */
1456 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
1457 writel(status, phba->CAregaddr);
1458 readl(phba->CAregaddr); /* flush */
1459 }
1460 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
1461 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
1462 pring->stats.iocb_cmd_empty++;
1463
1464 /* Force update of the local copy of cmdGetInx */
1465 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
1466 lpfc_sli_resume_iocb(phba, pring);
1467
1468 if ((pring->lpfc_sli_cmd_available))
1469 (pring->lpfc_sli_cmd_available) (phba, pring);
1470
1471 }
1472
1473 spin_unlock_irqrestore(phba->host->host_lock, iflag);
1474 return rc;
1475}
1476
1477int
1478lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1479{
James Smart2534ba72007-04-25 09:52:20 -04001480 LIST_HEAD(completions);
dea31012005-04-17 16:05:31 -05001481 struct lpfc_iocbq *iocb, *next_iocb;
James Smart2534ba72007-04-25 09:52:20 -04001482 IOCB_t *cmd = NULL;
dea31012005-04-17 16:05:31 -05001483 int errcnt;
dea31012005-04-17 16:05:31 -05001484
1485 errcnt = 0;
1486
1487 /* Error everything on txq and txcmplq
1488 * First do the txq.
1489 */
1490 spin_lock_irq(phba->host->host_lock);
James Smart2534ba72007-04-25 09:52:20 -04001491 list_splice_init(&pring->txq, &completions);
dea31012005-04-17 16:05:31 -05001492 pring->txq_cnt = 0;
dea31012005-04-17 16:05:31 -05001493
1494 /* Next issue ABTS for everything on the txcmplq */
James Smart2534ba72007-04-25 09:52:20 -04001495 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
1496 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
1497
1498 spin_unlock_irq(phba->host->host_lock);
1499
1500 while (!list_empty(&completions)) {
1501 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
dea31012005-04-17 16:05:31 -05001502 cmd = &iocb->iocb;
James Smart2534ba72007-04-25 09:52:20 -04001503 list_del(&iocb->list);
dea31012005-04-17 16:05:31 -05001504
1505 if (iocb->iocb_cmpl) {
1506 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
1507 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
dea31012005-04-17 16:05:31 -05001508 (iocb->iocb_cmpl) (phba, iocb, iocb);
James Bottomley604a3e32005-10-29 10:28:33 -05001509 } else
1510 lpfc_sli_release_iocbq(phba, iocb);
dea31012005-04-17 16:05:31 -05001511 }
1512
dea31012005-04-17 16:05:31 -05001513 return errcnt;
1514}
1515
Jamie Wellnitz41415862006-02-28 19:25:27 -05001516int
1517lpfc_sli_brdready(struct lpfc_hba * phba, uint32_t mask)
dea31012005-04-17 16:05:31 -05001518{
Jamie Wellnitz41415862006-02-28 19:25:27 -05001519 uint32_t status;
1520 int i = 0;
1521 int retval = 0;
dea31012005-04-17 16:05:31 -05001522
Jamie Wellnitz41415862006-02-28 19:25:27 -05001523 /* Read the HBA Host Status Register */
1524 status = readl(phba->HSregaddr);
dea31012005-04-17 16:05:31 -05001525
Jamie Wellnitz41415862006-02-28 19:25:27 -05001526 /*
1527 * Check status register every 100ms for 5 retries, then every
1528 * 500ms for 5, then every 2.5 sec for 5, then reset board and
1529 * every 2.5 sec for 4.
1530 * Break our of the loop if errors occurred during init.
1531 */
1532 while (((status & mask) != mask) &&
1533 !(status & HS_FFERM) &&
1534 i++ < 20) {
dea31012005-04-17 16:05:31 -05001535
Jamie Wellnitz41415862006-02-28 19:25:27 -05001536 if (i <= 5)
1537 msleep(10);
1538 else if (i <= 10)
1539 msleep(500);
1540 else
1541 msleep(2500);
dea31012005-04-17 16:05:31 -05001542
Jamie Wellnitz41415862006-02-28 19:25:27 -05001543 if (i == 15) {
1544 phba->hba_state = LPFC_STATE_UNKNOWN; /* Do post */
1545 lpfc_sli_brdrestart(phba);
1546 }
1547 /* Read the HBA Host Status Register */
1548 status = readl(phba->HSregaddr);
dea31012005-04-17 16:05:31 -05001549 }
dea31012005-04-17 16:05:31 -05001550
Jamie Wellnitz41415862006-02-28 19:25:27 -05001551 /* Check to see if any errors occurred during init */
1552 if ((status & HS_FFERM) || (i >= 20)) {
1553 phba->hba_state = LPFC_HBA_ERROR;
1554 retval = 1;
1555 }
dea31012005-04-17 16:05:31 -05001556
Jamie Wellnitz41415862006-02-28 19:25:27 -05001557 return retval;
dea31012005-04-17 16:05:31 -05001558}
1559
James Smart92908312006-03-07 15:04:13 -05001560#define BARRIER_TEST_PATTERN (0xdeadbeef)
1561
1562void lpfc_reset_barrier(struct lpfc_hba * phba)
1563{
James Smart65a29c12006-07-06 15:50:50 -04001564 uint32_t __iomem *resp_buf;
1565 uint32_t __iomem *mbox_buf;
James Smart92908312006-03-07 15:04:13 -05001566 volatile uint32_t mbox;
1567 uint32_t hc_copy;
1568 int i;
1569 uint8_t hdrtype;
1570
1571 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
1572 if (hdrtype != 0x80 ||
1573 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
1574 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
1575 return;
1576
1577 /*
1578 * Tell the other part of the chip to suspend temporarily all
1579 * its DMA activity.
1580 */
James Smart65a29c12006-07-06 15:50:50 -04001581 resp_buf = phba->MBslimaddr;
James Smart92908312006-03-07 15:04:13 -05001582
1583 /* Disable the error attention */
1584 hc_copy = readl(phba->HCregaddr);
1585 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
1586 readl(phba->HCregaddr); /* flush */
1587
1588 if (readl(phba->HAregaddr) & HA_ERATT) {
1589 /* Clear Chip error bit */
1590 writel(HA_ERATT, phba->HAregaddr);
1591 phba->stopped = 1;
1592 }
1593
1594 mbox = 0;
1595 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
1596 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
1597
1598 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
James Smart65a29c12006-07-06 15:50:50 -04001599 mbox_buf = phba->MBslimaddr;
James Smart92908312006-03-07 15:04:13 -05001600 writel(mbox, mbox_buf);
1601
1602 for (i = 0;
1603 readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++)
1604 mdelay(1);
1605
1606 if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) {
1607 if (phba->sli.sli_flag & LPFC_SLI2_ACTIVE ||
1608 phba->stopped)
1609 goto restore_hc;
1610 else
1611 goto clear_errat;
1612 }
1613
1614 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
1615 for (i = 0; readl(resp_buf) != mbox && i < 500; i++)
1616 mdelay(1);
1617
1618clear_errat:
1619
1620 while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500)
1621 mdelay(1);
1622
1623 if (readl(phba->HAregaddr) & HA_ERATT) {
1624 writel(HA_ERATT, phba->HAregaddr);
1625 phba->stopped = 1;
1626 }
1627
1628restore_hc:
1629 writel(hc_copy, phba->HCregaddr);
1630 readl(phba->HCregaddr); /* flush */
1631}
1632
Jamie Wellnitz41415862006-02-28 19:25:27 -05001633int
1634lpfc_sli_brdkill(struct lpfc_hba * phba)
dea31012005-04-17 16:05:31 -05001635{
Jamie Wellnitz41415862006-02-28 19:25:27 -05001636 struct lpfc_sli *psli;
1637 LPFC_MBOXQ_t *pmb;
1638 uint32_t status;
1639 uint32_t ha_copy;
1640 int retval;
1641 int i = 0;
1642
1643 psli = &phba->sli;
1644
1645 /* Kill HBA */
1646 lpfc_printf_log(phba,
1647 KERN_INFO,
1648 LOG_SLI,
1649 "%d:0329 Kill HBA Data: x%x x%x\n",
1650 phba->brd_no,
1651 phba->hba_state,
1652 psli->sli_flag);
1653
1654 if ((pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
James Smart92908312006-03-07 15:04:13 -05001655 GFP_KERNEL)) == 0)
Jamie Wellnitz41415862006-02-28 19:25:27 -05001656 return 1;
Jamie Wellnitz41415862006-02-28 19:25:27 -05001657
1658 /* Disable the error attention */
1659 spin_lock_irq(phba->host->host_lock);
1660 status = readl(phba->HCregaddr);
1661 status &= ~HC_ERINT_ENA;
1662 writel(status, phba->HCregaddr);
1663 readl(phba->HCregaddr); /* flush */
1664 spin_unlock_irq(phba->host->host_lock);
1665
1666 lpfc_kill_board(phba, pmb);
1667 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1668 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
1669
1670 if (retval != MBX_SUCCESS) {
1671 if (retval != MBX_BUSY)
1672 mempool_free(pmb, phba->mbox_mem_pool);
1673 return 1;
1674 }
1675
James Smart92908312006-03-07 15:04:13 -05001676 psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
1677
Jamie Wellnitz41415862006-02-28 19:25:27 -05001678 mempool_free(pmb, phba->mbox_mem_pool);
1679
1680 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
1681 * attention every 100ms for 3 seconds. If we don't get ERATT after
1682 * 3 seconds we still set HBA_ERROR state because the status of the
1683 * board is now undefined.
1684 */
1685 ha_copy = readl(phba->HAregaddr);
1686
1687 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
1688 mdelay(100);
1689 ha_copy = readl(phba->HAregaddr);
1690 }
1691
1692 del_timer_sync(&psli->mbox_tmo);
James Smart92908312006-03-07 15:04:13 -05001693 if (ha_copy & HA_ERATT) {
1694 writel(HA_ERATT, phba->HAregaddr);
1695 phba->stopped = 1;
1696 }
Jamie Wellnitz41415862006-02-28 19:25:27 -05001697 spin_lock_irq(phba->host->host_lock);
1698 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
1699 spin_unlock_irq(phba->host->host_lock);
1700
1701 psli->mbox_active = NULL;
1702 lpfc_hba_down_post(phba);
1703 phba->hba_state = LPFC_HBA_ERROR;
1704
1705 return (ha_copy & HA_ERATT ? 0 : 1);
1706}
1707
1708int
1709lpfc_sli_brdreset(struct lpfc_hba * phba)
1710{
1711 struct lpfc_sli *psli;
dea31012005-04-17 16:05:31 -05001712 struct lpfc_sli_ring *pring;
Jamie Wellnitz41415862006-02-28 19:25:27 -05001713 uint16_t cfg_value;
dea31012005-04-17 16:05:31 -05001714 int i;
dea31012005-04-17 16:05:31 -05001715
Jamie Wellnitz41415862006-02-28 19:25:27 -05001716 psli = &phba->sli;
dea31012005-04-17 16:05:31 -05001717
Jamie Wellnitz41415862006-02-28 19:25:27 -05001718 /* Reset HBA */
1719 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
1720 "%d:0325 Reset HBA Data: x%x x%x\n", phba->brd_no,
1721 phba->hba_state, psli->sli_flag);
dea31012005-04-17 16:05:31 -05001722
1723 /* perform board reset */
1724 phba->fc_eventTag = 0;
1725 phba->fc_myDID = 0;
Jamie Wellnitz41415862006-02-28 19:25:27 -05001726 phba->fc_prevDID = 0;
dea31012005-04-17 16:05:31 -05001727
Jamie Wellnitz41415862006-02-28 19:25:27 -05001728 /* Turn off parity checking and serr during the physical reset */
1729 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
1730 pci_write_config_word(phba->pcidev, PCI_COMMAND,
1731 (cfg_value &
1732 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
1733
James Smart1c067a42006-08-01 07:33:52 -04001734 psli->sli_flag &= ~(LPFC_SLI2_ACTIVE | LPFC_PROCESS_LA);
Jamie Wellnitz41415862006-02-28 19:25:27 -05001735 /* Now toggle INITFF bit in the Host Control Register */
1736 writel(HC_INITFF, phba->HCregaddr);
1737 mdelay(1);
1738 readl(phba->HCregaddr); /* flush */
1739 writel(0, phba->HCregaddr);
1740 readl(phba->HCregaddr); /* flush */
1741
1742 /* Restore PCI cmd register */
1743 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
dea31012005-04-17 16:05:31 -05001744
1745 /* Initialize relevant SLI info */
Jamie Wellnitz41415862006-02-28 19:25:27 -05001746 for (i = 0; i < psli->num_rings; i++) {
1747 pring = &psli->ring[i];
dea31012005-04-17 16:05:31 -05001748 pring->flag = 0;
1749 pring->rspidx = 0;
1750 pring->next_cmdidx = 0;
1751 pring->local_getidx = 0;
1752 pring->cmdidx = 0;
1753 pring->missbufcnt = 0;
1754 }
dea31012005-04-17 16:05:31 -05001755
Jamie Wellnitz41415862006-02-28 19:25:27 -05001756 phba->hba_state = LPFC_WARM_START;
1757 return 0;
1758}
1759
1760int
1761lpfc_sli_brdrestart(struct lpfc_hba * phba)
1762{
1763 MAILBOX_t *mb;
1764 struct lpfc_sli *psli;
1765 uint16_t skip_post;
1766 volatile uint32_t word0;
1767 void __iomem *to_slim;
1768
1769 spin_lock_irq(phba->host->host_lock);
1770
1771 psli = &phba->sli;
1772
1773 /* Restart HBA */
1774 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smartdca94792006-08-01 07:34:08 -04001775 "%d:0337 Restart HBA Data: x%x x%x\n", phba->brd_no,
Jamie Wellnitz41415862006-02-28 19:25:27 -05001776 phba->hba_state, psli->sli_flag);
1777
1778 word0 = 0;
1779 mb = (MAILBOX_t *) &word0;
1780 mb->mbxCommand = MBX_RESTART;
1781 mb->mbxHc = 1;
1782
James Smart92908312006-03-07 15:04:13 -05001783 lpfc_reset_barrier(phba);
1784
Jamie Wellnitz41415862006-02-28 19:25:27 -05001785 to_slim = phba->MBslimaddr;
1786 writel(*(uint32_t *) mb, to_slim);
1787 readl(to_slim); /* flush */
1788
1789 /* Only skip post after fc_ffinit is completed */
1790 if (phba->hba_state) {
1791 skip_post = 1;
1792 word0 = 1; /* This is really setting up word1 */
dea31012005-04-17 16:05:31 -05001793 } else {
Jamie Wellnitz41415862006-02-28 19:25:27 -05001794 skip_post = 0;
1795 word0 = 0; /* This is really setting up word1 */
1796 }
James Smart65a29c12006-07-06 15:50:50 -04001797 to_slim = phba->MBslimaddr + sizeof (uint32_t);
Jamie Wellnitz41415862006-02-28 19:25:27 -05001798 writel(*(uint32_t *) mb, to_slim);
1799 readl(to_slim); /* flush */
1800
1801 lpfc_sli_brdreset(phba);
James Smart92908312006-03-07 15:04:13 -05001802 phba->stopped = 0;
Jamie Wellnitz41415862006-02-28 19:25:27 -05001803 phba->hba_state = LPFC_INIT_START;
1804
1805 spin_unlock_irq(phba->host->host_lock);
1806
James Smart64ba8812006-08-02 15:24:34 -04001807 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
1808 psli->stats_start = get_seconds();
1809
Jamie Wellnitz41415862006-02-28 19:25:27 -05001810 if (skip_post)
1811 mdelay(100);
1812 else
dea31012005-04-17 16:05:31 -05001813 mdelay(2000);
dea31012005-04-17 16:05:31 -05001814
Jamie Wellnitz41415862006-02-28 19:25:27 -05001815 lpfc_hba_down_post(phba);
dea31012005-04-17 16:05:31 -05001816
1817 return 0;
1818}
1819
1820static int
1821lpfc_sli_chipset_init(struct lpfc_hba *phba)
1822{
1823 uint32_t status, i = 0;
1824
1825 /* Read the HBA Host Status Register */
1826 status = readl(phba->HSregaddr);
1827
1828 /* Check status register to see what current state is */
1829 i = 0;
1830 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
1831
1832 /* Check every 100ms for 5 retries, then every 500ms for 5, then
1833 * every 2.5 sec for 5, then reset board and every 2.5 sec for
1834 * 4.
1835 */
1836 if (i++ >= 20) {
1837 /* Adapter failed to init, timeout, status reg
1838 <status> */
1839 lpfc_printf_log(phba,
1840 KERN_ERR,
1841 LOG_INIT,
1842 "%d:0436 Adapter failed to init, "
1843 "timeout, status reg x%x\n",
1844 phba->brd_no,
1845 status);
1846 phba->hba_state = LPFC_HBA_ERROR;
1847 return -ETIMEDOUT;
1848 }
1849
1850 /* Check to see if any errors occurred during init */
1851 if (status & HS_FFERM) {
1852 /* ERROR: During chipset initialization */
1853 /* Adapter failed to init, chipset, status reg
1854 <status> */
1855 lpfc_printf_log(phba,
1856 KERN_ERR,
1857 LOG_INIT,
1858 "%d:0437 Adapter failed to init, "
1859 "chipset, status reg x%x\n",
1860 phba->brd_no,
1861 status);
1862 phba->hba_state = LPFC_HBA_ERROR;
1863 return -EIO;
1864 }
1865
1866 if (i <= 5) {
1867 msleep(10);
1868 } else if (i <= 10) {
1869 msleep(500);
1870 } else {
1871 msleep(2500);
1872 }
1873
1874 if (i == 15) {
Jamie Wellnitz41415862006-02-28 19:25:27 -05001875 phba->hba_state = LPFC_STATE_UNKNOWN; /* Do post */
1876 lpfc_sli_brdrestart(phba);
dea31012005-04-17 16:05:31 -05001877 }
1878 /* Read the HBA Host Status Register */
1879 status = readl(phba->HSregaddr);
1880 }
1881
1882 /* Check to see if any errors occurred during init */
1883 if (status & HS_FFERM) {
1884 /* ERROR: During chipset initialization */
1885 /* Adapter failed to init, chipset, status reg <status> */
1886 lpfc_printf_log(phba,
1887 KERN_ERR,
1888 LOG_INIT,
1889 "%d:0438 Adapter failed to init, chipset, "
1890 "status reg x%x\n",
1891 phba->brd_no,
1892 status);
1893 phba->hba_state = LPFC_HBA_ERROR;
1894 return -EIO;
1895 }
1896
1897 /* Clear all interrupt enable conditions */
1898 writel(0, phba->HCregaddr);
1899 readl(phba->HCregaddr); /* flush */
1900
1901 /* setup host attn register */
1902 writel(0xffffffff, phba->HAregaddr);
1903 readl(phba->HAregaddr); /* flush */
1904 return 0;
1905}
1906
1907int
1908lpfc_sli_hba_setup(struct lpfc_hba * phba)
1909{
1910 LPFC_MBOXQ_t *pmb;
1911 uint32_t resetcount = 0, rc = 0, done = 0;
1912
1913 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1914 if (!pmb) {
1915 phba->hba_state = LPFC_HBA_ERROR;
1916 return -ENOMEM;
1917 }
1918
1919 while (resetcount < 2 && !done) {
James Smart1c067a42006-08-01 07:33:52 -04001920 spin_lock_irq(phba->host->host_lock);
1921 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
1922 spin_unlock_irq(phba->host->host_lock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05001923 phba->hba_state = LPFC_STATE_UNKNOWN;
1924 lpfc_sli_brdrestart(phba);
dea31012005-04-17 16:05:31 -05001925 msleep(2500);
1926 rc = lpfc_sli_chipset_init(phba);
1927 if (rc)
1928 break;
1929
James Smart1c067a42006-08-01 07:33:52 -04001930 spin_lock_irq(phba->host->host_lock);
1931 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
1932 spin_unlock_irq(phba->host->host_lock);
dea31012005-04-17 16:05:31 -05001933 resetcount++;
1934
1935 /* Call pre CONFIG_PORT mailbox command initialization. A value of 0
1936 * means the call was successful. Any other nonzero value is a failure,
1937 * but if ERESTART is returned, the driver may reset the HBA and try
1938 * again.
1939 */
1940 rc = lpfc_config_port_prep(phba);
1941 if (rc == -ERESTART) {
1942 phba->hba_state = 0;
1943 continue;
1944 } else if (rc) {
1945 break;
1946 }
1947
1948 phba->hba_state = LPFC_INIT_MBX_CMDS;
1949 lpfc_config_port(phba, pmb);
1950 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1951 if (rc == MBX_SUCCESS)
1952 done = 1;
1953 else {
1954 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1955 "%d:0442 Adapter failed to init, mbxCmd x%x "
1956 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
1957 phba->brd_no, pmb->mb.mbxCommand,
1958 pmb->mb.mbxStatus, 0);
1959 phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE;
1960 }
1961 }
1962 if (!done)
1963 goto lpfc_sli_hba_setup_error;
1964
1965 rc = lpfc_sli_ring_map(phba, pmb);
1966
1967 if (rc)
1968 goto lpfc_sli_hba_setup_error;
1969
1970 phba->sli.sli_flag |= LPFC_PROCESS_LA;
1971
1972 rc = lpfc_config_port_post(phba);
1973 if (rc)
1974 goto lpfc_sli_hba_setup_error;
1975
1976 goto lpfc_sli_hba_setup_exit;
1977lpfc_sli_hba_setup_error:
1978 phba->hba_state = LPFC_HBA_ERROR;
1979lpfc_sli_hba_setup_exit:
1980 mempool_free(pmb, phba->mbox_mem_pool);
1981 return rc;
1982}
1983
dea31012005-04-17 16:05:31 -05001984/*! lpfc_mbox_timeout
1985 *
1986 * \pre
1987 * \post
1988 * \param hba Pointer to per struct lpfc_hba structure
1989 * \param l1 Pointer to the driver's mailbox queue.
1990 * \return
1991 * void
1992 *
1993 * \b Description:
1994 *
1995 * This routine handles mailbox timeout events at timer interrupt context.
1996 */
1997void
1998lpfc_mbox_timeout(unsigned long ptr)
1999{
2000 struct lpfc_hba *phba;
2001 unsigned long iflag;
2002
2003 phba = (struct lpfc_hba *)ptr;
2004 spin_lock_irqsave(phba->host->host_lock, iflag);
2005 if (!(phba->work_hba_events & WORKER_MBOX_TMO)) {
2006 phba->work_hba_events |= WORKER_MBOX_TMO;
2007 if (phba->work_wait)
2008 wake_up(phba->work_wait);
2009 }
2010 spin_unlock_irqrestore(phba->host->host_lock, iflag);
2011}
2012
2013void
2014lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
2015{
2016 LPFC_MBOXQ_t *pmbox;
2017 MAILBOX_t *mb;
James Smart1dcb58e2007-04-25 09:51:30 -04002018 struct lpfc_sli *psli = &phba->sli;
2019 struct lpfc_sli_ring *pring;
dea31012005-04-17 16:05:31 -05002020
2021 spin_lock_irq(phba->host->host_lock);
2022 if (!(phba->work_hba_events & WORKER_MBOX_TMO)) {
2023 spin_unlock_irq(phba->host->host_lock);
2024 return;
2025 }
2026
2027 pmbox = phba->sli.mbox_active;
2028 mb = &pmbox->mb;
2029
2030 /* Mbox cmd <mbxCommand> timeout */
2031 lpfc_printf_log(phba,
2032 KERN_ERR,
2033 LOG_MBOX | LOG_SLI,
2034 "%d:0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
2035 phba->brd_no,
2036 mb->mbxCommand,
2037 phba->hba_state,
2038 phba->sli.sli_flag,
2039 phba->sli.mbox_active);
2040
James Smart1dcb58e2007-04-25 09:51:30 -04002041 /* Setting state unknown so lpfc_sli_abort_iocb_ring
2042 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
2043 * it to fail all oustanding SCSI IO.
2044 */
2045 phba->hba_state = LPFC_STATE_UNKNOWN;
2046 phba->work_hba_events &= ~WORKER_MBOX_TMO;
2047 phba->fc_flag |= FC_ESTABLISH_LINK;
2048 psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
dea31012005-04-17 16:05:31 -05002049 spin_unlock_irq(phba->host->host_lock);
James Smart1dcb58e2007-04-25 09:51:30 -04002050
2051 pring = &psli->ring[psli->fcp_ring];
2052 lpfc_sli_abort_iocb_ring(phba, pring);
2053
2054 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2055 "%d:0316 Resetting board due to mailbox timeout\n",
2056 phba->brd_no);
2057 /*
2058 * lpfc_offline calls lpfc_sli_hba_down which will clean up
2059 * on oustanding mailbox commands.
2060 */
2061 lpfc_offline_prep(phba);
2062 lpfc_offline(phba);
2063 lpfc_sli_brdrestart(phba);
2064 if (lpfc_online(phba) == 0) /* Initialize the HBA */
2065 mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60);
2066 lpfc_unblock_mgmt_io(phba);
dea31012005-04-17 16:05:31 -05002067 return;
2068}
2069
2070int
2071lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag)
2072{
dea31012005-04-17 16:05:31 -05002073 MAILBOX_t *mb;
2074 struct lpfc_sli *psli;
2075 uint32_t status, evtctr;
2076 uint32_t ha_copy;
2077 int i;
2078 unsigned long drvr_flag = 0;
2079 volatile uint32_t word0, ldata;
2080 void __iomem *to_slim;
2081
Linas Vepstas8d63f372007-02-14 14:28:36 -06002082 /* If the PCI channel is in offline state, do not post mbox. */
2083 if (unlikely(pci_channel_offline(phba->pcidev)))
2084 return MBX_NOT_FINISHED;
2085
dea31012005-04-17 16:05:31 -05002086 psli = &phba->sli;
2087
2088 spin_lock_irqsave(phba->host->host_lock, drvr_flag);
2089
2090
2091 mb = &pmbox->mb;
2092 status = MBX_SUCCESS;
2093
Jamie Wellnitz41415862006-02-28 19:25:27 -05002094 if (phba->hba_state == LPFC_HBA_ERROR) {
2095 spin_unlock_irqrestore(phba->host->host_lock, drvr_flag);
2096
2097 /* Mbox command <mbxCommand> cannot issue */
2098 LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag)
2099 return (MBX_NOT_FINISHED);
2100 }
2101
James Smart92908312006-03-07 15:04:13 -05002102 if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT &&
2103 !(readl(phba->HCregaddr) & HC_MBINT_ENA)) {
2104 spin_unlock_irqrestore(phba->host->host_lock, drvr_flag);
2105 LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag)
2106 return (MBX_NOT_FINISHED);
2107 }
2108
dea31012005-04-17 16:05:31 -05002109 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
2110 /* Polling for a mbox command when another one is already active
2111 * is not allowed in SLI. Also, the driver must have established
2112 * SLI2 mode to queue and process multiple mbox commands.
2113 */
2114
2115 if (flag & MBX_POLL) {
2116 spin_unlock_irqrestore(phba->host->host_lock,
2117 drvr_flag);
2118
2119 /* Mbox command <mbxCommand> cannot issue */
2120 LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag)
2121 return (MBX_NOT_FINISHED);
2122 }
2123
2124 if (!(psli->sli_flag & LPFC_SLI2_ACTIVE)) {
2125 spin_unlock_irqrestore(phba->host->host_lock,
2126 drvr_flag);
2127 /* Mbox command <mbxCommand> cannot issue */
2128 LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag)
2129 return (MBX_NOT_FINISHED);
2130 }
2131
2132 /* Handle STOP IOCB processing flag. This is only meaningful
2133 * if we are not polling for mbox completion.
2134 */
2135 if (flag & MBX_STOP_IOCB) {
2136 flag &= ~MBX_STOP_IOCB;
2137 /* Now flag each ring */
2138 for (i = 0; i < psli->num_rings; i++) {
2139 /* If the ring is active, flag it */
2140 if (psli->ring[i].cmdringaddr) {
2141 psli->ring[i].flag |=
2142 LPFC_STOP_IOCB_MBX;
2143 }
2144 }
2145 }
2146
2147 /* Another mailbox command is still being processed, queue this
2148 * command to be processed later.
2149 */
2150 lpfc_mbox_put(phba, pmbox);
2151
2152 /* Mbox cmd issue - BUSY */
2153 lpfc_printf_log(phba,
2154 KERN_INFO,
2155 LOG_MBOX | LOG_SLI,
2156 "%d:0308 Mbox cmd issue - BUSY Data: x%x x%x x%x x%x\n",
2157 phba->brd_no,
2158 mb->mbxCommand,
2159 phba->hba_state,
2160 psli->sli_flag,
2161 flag);
2162
2163 psli->slistat.mbox_busy++;
2164 spin_unlock_irqrestore(phba->host->host_lock,
2165 drvr_flag);
2166
2167 return (MBX_BUSY);
2168 }
2169
2170 /* Handle STOP IOCB processing flag. This is only meaningful
2171 * if we are not polling for mbox completion.
2172 */
2173 if (flag & MBX_STOP_IOCB) {
2174 flag &= ~MBX_STOP_IOCB;
2175 if (flag == MBX_NOWAIT) {
2176 /* Now flag each ring */
2177 for (i = 0; i < psli->num_rings; i++) {
2178 /* If the ring is active, flag it */
2179 if (psli->ring[i].cmdringaddr) {
2180 psli->ring[i].flag |=
2181 LPFC_STOP_IOCB_MBX;
2182 }
2183 }
2184 }
2185 }
2186
2187 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
2188
2189 /* If we are not polling, we MUST be in SLI2 mode */
2190 if (flag != MBX_POLL) {
Jamie Wellnitz41415862006-02-28 19:25:27 -05002191 if (!(psli->sli_flag & LPFC_SLI2_ACTIVE) &&
2192 (mb->mbxCommand != MBX_KILL_BOARD)) {
dea31012005-04-17 16:05:31 -05002193 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
2194 spin_unlock_irqrestore(phba->host->host_lock,
2195 drvr_flag);
2196 /* Mbox command <mbxCommand> cannot issue */
2197 LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag);
2198 return (MBX_NOT_FINISHED);
2199 }
2200 /* timeout active mbox command */
James Smarta309a6b2006-08-01 07:33:43 -04002201 mod_timer(&psli->mbox_tmo, (jiffies +
2202 (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand))));
dea31012005-04-17 16:05:31 -05002203 }
2204
2205 /* Mailbox cmd <cmd> issue */
2206 lpfc_printf_log(phba,
2207 KERN_INFO,
2208 LOG_MBOX | LOG_SLI,
2209 "%d:0309 Mailbox cmd x%x issue Data: x%x x%x x%x\n",
2210 phba->brd_no,
2211 mb->mbxCommand,
2212 phba->hba_state,
2213 psli->sli_flag,
2214 flag);
2215
2216 psli->slistat.mbox_cmd++;
2217 evtctr = psli->slistat.mbox_event;
2218
2219 /* next set own bit for the adapter and copy over command word */
2220 mb->mbxOwner = OWN_CHIP;
2221
2222 if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
dea31012005-04-17 16:05:31 -05002223 /* First copy command data to host SLIM area */
James.Smart@Emulex.Com4cc2da12005-06-25 10:34:00 -04002224 lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx, MAILBOX_CMD_SIZE);
dea31012005-04-17 16:05:31 -05002225 } else {
James Smart92908312006-03-07 15:04:13 -05002226 if (mb->mbxCommand == MBX_CONFIG_PORT) {
dea31012005-04-17 16:05:31 -05002227 /* copy command data into host mbox for cmpl */
James.Smart@Emulex.Com4cc2da12005-06-25 10:34:00 -04002228 lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx,
2229 MAILBOX_CMD_SIZE);
dea31012005-04-17 16:05:31 -05002230 }
2231
2232 /* First copy mbox command data to HBA SLIM, skip past first
2233 word */
2234 to_slim = phba->MBslimaddr + sizeof (uint32_t);
2235 lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0],
2236 MAILBOX_CMD_SIZE - sizeof (uint32_t));
2237
2238 /* Next copy over first word, with mbxOwner set */
2239 ldata = *((volatile uint32_t *)mb);
2240 to_slim = phba->MBslimaddr;
2241 writel(ldata, to_slim);
2242 readl(to_slim); /* flush */
2243
2244 if (mb->mbxCommand == MBX_CONFIG_PORT) {
2245 /* switch over to host mailbox */
2246 psli->sli_flag |= LPFC_SLI2_ACTIVE;
2247 }
2248 }
2249
2250 wmb();
2251 /* interrupt board to doit right away */
2252 writel(CA_MBATT, phba->CAregaddr);
2253 readl(phba->CAregaddr); /* flush */
2254
2255 switch (flag) {
2256 case MBX_NOWAIT:
2257 /* Don't wait for it to finish, just return */
2258 psli->mbox_active = pmbox;
2259 break;
2260
2261 case MBX_POLL:
dea31012005-04-17 16:05:31 -05002262 psli->mbox_active = NULL;
2263 if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
2264 /* First read mbox status word */
James.Smart@Emulex.Com4cc2da12005-06-25 10:34:00 -04002265 word0 = *((volatile uint32_t *)&phba->slim2p->mbx);
dea31012005-04-17 16:05:31 -05002266 word0 = le32_to_cpu(word0);
2267 } else {
2268 /* First read mbox status word */
2269 word0 = readl(phba->MBslimaddr);
2270 }
2271
2272 /* Read the HBA Host Attention Register */
2273 ha_copy = readl(phba->HAregaddr);
2274
James Smarta309a6b2006-08-01 07:33:43 -04002275 i = lpfc_mbox_tmo_val(phba, mb->mbxCommand);
2276 i *= 1000; /* Convert to ms */
2277
dea31012005-04-17 16:05:31 -05002278 /* Wait for command to complete */
Jamie Wellnitz41415862006-02-28 19:25:27 -05002279 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
2280 (!(ha_copy & HA_MBATT) &&
2281 (phba->hba_state > LPFC_WARM_START))) {
James Smarta309a6b2006-08-01 07:33:43 -04002282 if (i-- <= 0) {
dea31012005-04-17 16:05:31 -05002283 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
2284 spin_unlock_irqrestore(phba->host->host_lock,
2285 drvr_flag);
2286 return (MBX_NOT_FINISHED);
2287 }
2288
2289 /* Check if we took a mbox interrupt while we were
2290 polling */
2291 if (((word0 & OWN_CHIP) != OWN_CHIP)
2292 && (evtctr != psli->slistat.mbox_event))
2293 break;
2294
2295 spin_unlock_irqrestore(phba->host->host_lock,
2296 drvr_flag);
2297
James Smart1dcb58e2007-04-25 09:51:30 -04002298 msleep(1);
dea31012005-04-17 16:05:31 -05002299
2300 spin_lock_irqsave(phba->host->host_lock, drvr_flag);
2301
2302 if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
2303 /* First copy command data */
James.Smart@Emulex.Com4cc2da12005-06-25 10:34:00 -04002304 word0 = *((volatile uint32_t *)
2305 &phba->slim2p->mbx);
dea31012005-04-17 16:05:31 -05002306 word0 = le32_to_cpu(word0);
2307 if (mb->mbxCommand == MBX_CONFIG_PORT) {
2308 MAILBOX_t *slimmb;
2309 volatile uint32_t slimword0;
2310 /* Check real SLIM for any errors */
2311 slimword0 = readl(phba->MBslimaddr);
2312 slimmb = (MAILBOX_t *) & slimword0;
2313 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
2314 && slimmb->mbxStatus) {
2315 psli->sli_flag &=
2316 ~LPFC_SLI2_ACTIVE;
2317 word0 = slimword0;
2318 }
2319 }
2320 } else {
2321 /* First copy command data */
2322 word0 = readl(phba->MBslimaddr);
2323 }
2324 /* Read the HBA Host Attention Register */
2325 ha_copy = readl(phba->HAregaddr);
2326 }
2327
2328 if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
dea31012005-04-17 16:05:31 -05002329 /* copy results back to user */
James.Smart@Emulex.Com4cc2da12005-06-25 10:34:00 -04002330 lpfc_sli_pcimem_bcopy(&phba->slim2p->mbx, mb,
2331 MAILBOX_CMD_SIZE);
dea31012005-04-17 16:05:31 -05002332 } else {
2333 /* First copy command data */
2334 lpfc_memcpy_from_slim(mb, phba->MBslimaddr,
2335 MAILBOX_CMD_SIZE);
2336 if ((mb->mbxCommand == MBX_DUMP_MEMORY) &&
2337 pmbox->context2) {
2338 lpfc_memcpy_from_slim((void *)pmbox->context2,
2339 phba->MBslimaddr + DMP_RSP_OFFSET,
2340 mb->un.varDmp.word_cnt);
2341 }
2342 }
2343
2344 writel(HA_MBATT, phba->HAregaddr);
2345 readl(phba->HAregaddr); /* flush */
2346
2347 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
2348 status = mb->mbxStatus;
2349 }
2350
2351 spin_unlock_irqrestore(phba->host->host_lock, drvr_flag);
2352 return (status);
2353}
2354
2355static int
2356lpfc_sli_ringtx_put(struct lpfc_hba * phba, struct lpfc_sli_ring * pring,
2357 struct lpfc_iocbq * piocb)
2358{
2359 /* Insert the caller's iocb in the txq tail for later processing. */
2360 list_add_tail(&piocb->list, &pring->txq);
2361 pring->txq_cnt++;
2362 return (0);
2363}
2364
2365static struct lpfc_iocbq *
2366lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2367 struct lpfc_iocbq ** piocb)
2368{
2369 struct lpfc_iocbq * nextiocb;
2370
2371 nextiocb = lpfc_sli_ringtx_get(phba, pring);
2372 if (!nextiocb) {
2373 nextiocb = *piocb;
2374 *piocb = NULL;
2375 }
2376
2377 return nextiocb;
2378}
2379
2380int
2381lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2382 struct lpfc_iocbq *piocb, uint32_t flag)
2383{
2384 struct lpfc_iocbq *nextiocb;
2385 IOCB_t *iocb;
2386
Linas Vepstas8d63f372007-02-14 14:28:36 -06002387 /* If the PCI channel is in offline state, do not post iocbs. */
2388 if (unlikely(pci_channel_offline(phba->pcidev)))
2389 return IOCB_ERROR;
2390
dea31012005-04-17 16:05:31 -05002391 /*
2392 * We should never get an IOCB if we are in a < LINK_DOWN state
2393 */
2394 if (unlikely(phba->hba_state < LPFC_LINK_DOWN))
2395 return IOCB_ERROR;
2396
2397 /*
2398 * Check to see if we are blocking IOCB processing because of a
2399 * outstanding mbox command.
2400 */
2401 if (unlikely(pring->flag & LPFC_STOP_IOCB_MBX))
2402 goto iocb_busy;
2403
2404 if (unlikely(phba->hba_state == LPFC_LINK_DOWN)) {
2405 /*
James Smart2680eea2007-04-25 09:52:55 -04002406 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
dea31012005-04-17 16:05:31 -05002407 * can be issued if the link is not up.
2408 */
2409 switch (piocb->iocb.ulpCommand) {
2410 case CMD_QUE_RING_BUF_CN:
2411 case CMD_QUE_RING_BUF64_CN:
dea31012005-04-17 16:05:31 -05002412 /*
2413 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
2414 * completion, iocb_cmpl MUST be 0.
2415 */
2416 if (piocb->iocb_cmpl)
2417 piocb->iocb_cmpl = NULL;
2418 /*FALLTHROUGH*/
2419 case CMD_CREATE_XRI_CR:
James Smart2680eea2007-04-25 09:52:55 -04002420 case CMD_CLOSE_XRI_CN:
2421 case CMD_CLOSE_XRI_CX:
dea31012005-04-17 16:05:31 -05002422 break;
2423 default:
2424 goto iocb_busy;
2425 }
2426
2427 /*
2428 * For FCP commands, we must be in a state where we can process link
2429 * attention events.
2430 */
2431 } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
2432 !(phba->sli.sli_flag & LPFC_PROCESS_LA)))
2433 goto iocb_busy;
2434
dea31012005-04-17 16:05:31 -05002435 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
2436 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
2437 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
2438
2439 if (iocb)
2440 lpfc_sli_update_ring(phba, pring);
2441 else
2442 lpfc_sli_update_full_ring(phba, pring);
2443
2444 if (!piocb)
2445 return IOCB_SUCCESS;
2446
2447 goto out_busy;
2448
2449 iocb_busy:
2450 pring->stats.iocb_cmd_delay++;
2451
2452 out_busy:
2453
2454 if (!(flag & SLI_IOCB_RET_IOCB)) {
2455 lpfc_sli_ringtx_put(phba, pring, piocb);
2456 return IOCB_SUCCESS;
2457 }
2458
2459 return IOCB_BUSY;
2460}
2461
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05002462static int
2463lpfc_extra_ring_setup( struct lpfc_hba *phba)
2464{
2465 struct lpfc_sli *psli;
2466 struct lpfc_sli_ring *pring;
2467
2468 psli = &phba->sli;
2469
2470 /* Adjust cmd/rsp ring iocb entries more evenly */
James Smarta4bc3372006-12-02 13:34:16 -05002471
2472 /* Take some away from the FCP ring */
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05002473 pring = &psli->ring[psli->fcp_ring];
2474 pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
2475 pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
2476 pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
2477 pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
2478
James Smarta4bc3372006-12-02 13:34:16 -05002479 /* and give them to the extra ring */
2480 pring = &psli->ring[psli->extra_ring];
2481
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05002482 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
2483 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
2484 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
2485 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
2486
2487 /* Setup default profile for this ring */
2488 pring->iotag_max = 4096;
2489 pring->num_mask = 1;
2490 pring->prt[0].profile = 0; /* Mask 0 */
James Smarta4bc3372006-12-02 13:34:16 -05002491 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
2492 pring->prt[0].type = phba->cfg_multi_ring_type;
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05002493 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
2494 return 0;
2495}
2496
dea31012005-04-17 16:05:31 -05002497int
2498lpfc_sli_setup(struct lpfc_hba *phba)
2499{
2500 int i, totiocb = 0;
2501 struct lpfc_sli *psli = &phba->sli;
2502 struct lpfc_sli_ring *pring;
2503
2504 psli->num_rings = MAX_CONFIGURED_RINGS;
2505 psli->sli_flag = 0;
2506 psli->fcp_ring = LPFC_FCP_RING;
2507 psli->next_ring = LPFC_FCP_NEXT_RING;
James Smarta4bc3372006-12-02 13:34:16 -05002508 psli->extra_ring = LPFC_EXTRA_RING;
dea31012005-04-17 16:05:31 -05002509
James Bottomley604a3e32005-10-29 10:28:33 -05002510 psli->iocbq_lookup = NULL;
2511 psli->iocbq_lookup_len = 0;
2512 psli->last_iotag = 0;
2513
dea31012005-04-17 16:05:31 -05002514 for (i = 0; i < psli->num_rings; i++) {
2515 pring = &psli->ring[i];
2516 switch (i) {
2517 case LPFC_FCP_RING: /* ring 0 - FCP */
2518 /* numCiocb and numRiocb are used in config_port */
2519 pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
2520 pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
2521 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
2522 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
2523 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
2524 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
2525 pring->iotag_ctr = 0;
2526 pring->iotag_max =
2527 (phba->cfg_hba_queue_depth * 2);
2528 pring->fast_iotag = pring->iotag_max;
2529 pring->num_mask = 0;
2530 break;
James Smarta4bc3372006-12-02 13:34:16 -05002531 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
dea31012005-04-17 16:05:31 -05002532 /* numCiocb and numRiocb are used in config_port */
2533 pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
2534 pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
2535 pring->num_mask = 0;
2536 break;
2537 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
2538 /* numCiocb and numRiocb are used in config_port */
2539 pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
2540 pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
2541 pring->fast_iotag = 0;
2542 pring->iotag_ctr = 0;
2543 pring->iotag_max = 4096;
2544 pring->num_mask = 4;
2545 pring->prt[0].profile = 0; /* Mask 0 */
2546 pring->prt[0].rctl = FC_ELS_REQ;
2547 pring->prt[0].type = FC_ELS_DATA;
2548 pring->prt[0].lpfc_sli_rcv_unsol_event =
2549 lpfc_els_unsol_event;
2550 pring->prt[1].profile = 0; /* Mask 1 */
2551 pring->prt[1].rctl = FC_ELS_RSP;
2552 pring->prt[1].type = FC_ELS_DATA;
2553 pring->prt[1].lpfc_sli_rcv_unsol_event =
2554 lpfc_els_unsol_event;
2555 pring->prt[2].profile = 0; /* Mask 2 */
2556 /* NameServer Inquiry */
2557 pring->prt[2].rctl = FC_UNSOL_CTL;
2558 /* NameServer */
2559 pring->prt[2].type = FC_COMMON_TRANSPORT_ULP;
2560 pring->prt[2].lpfc_sli_rcv_unsol_event =
2561 lpfc_ct_unsol_event;
2562 pring->prt[3].profile = 0; /* Mask 3 */
2563 /* NameServer response */
2564 pring->prt[3].rctl = FC_SOL_CTL;
2565 /* NameServer */
2566 pring->prt[3].type = FC_COMMON_TRANSPORT_ULP;
2567 pring->prt[3].lpfc_sli_rcv_unsol_event =
2568 lpfc_ct_unsol_event;
2569 break;
2570 }
2571 totiocb += (pring->numCiocb + pring->numRiocb);
2572 }
2573 if (totiocb > MAX_SLI2_IOCB) {
2574 /* Too many cmd / rsp ring entries in SLI2 SLIM */
2575 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2576 "%d:0462 Too many cmd / rsp ring entries in "
2577 "SLI2 SLIM Data: x%x x%x\n",
2578 phba->brd_no, totiocb, MAX_SLI2_IOCB);
2579 }
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05002580 if (phba->cfg_multi_ring_support == 2)
2581 lpfc_extra_ring_setup(phba);
dea31012005-04-17 16:05:31 -05002582
2583 return 0;
2584}
2585
2586int
2587lpfc_sli_queue_setup(struct lpfc_hba * phba)
2588{
2589 struct lpfc_sli *psli;
2590 struct lpfc_sli_ring *pring;
James Bottomley604a3e32005-10-29 10:28:33 -05002591 int i;
dea31012005-04-17 16:05:31 -05002592
2593 psli = &phba->sli;
2594 spin_lock_irq(phba->host->host_lock);
2595 INIT_LIST_HEAD(&psli->mboxq);
2596 /* Initialize list headers for txq and txcmplq as double linked lists */
2597 for (i = 0; i < psli->num_rings; i++) {
2598 pring = &psli->ring[i];
2599 pring->ringno = i;
2600 pring->next_cmdidx = 0;
2601 pring->local_getidx = 0;
2602 pring->cmdidx = 0;
2603 INIT_LIST_HEAD(&pring->txq);
2604 INIT_LIST_HEAD(&pring->txcmplq);
2605 INIT_LIST_HEAD(&pring->iocb_continueq);
2606 INIT_LIST_HEAD(&pring->postbufq);
dea31012005-04-17 16:05:31 -05002607 }
2608 spin_unlock_irq(phba->host->host_lock);
2609 return (1);
2610}
2611
2612int
2613lpfc_sli_hba_down(struct lpfc_hba * phba)
2614{
James Smart2534ba72007-04-25 09:52:20 -04002615 LIST_HEAD(completions);
dea31012005-04-17 16:05:31 -05002616 struct lpfc_sli *psli;
2617 struct lpfc_sli_ring *pring;
2618 LPFC_MBOXQ_t *pmb;
James Smart2534ba72007-04-25 09:52:20 -04002619 struct lpfc_iocbq *iocb;
2620 IOCB_t *cmd = NULL;
dea31012005-04-17 16:05:31 -05002621 int i;
2622 unsigned long flags = 0;
2623
2624 psli = &phba->sli;
2625 lpfc_hba_down_prep(phba);
2626
2627 spin_lock_irqsave(phba->host->host_lock, flags);
dea31012005-04-17 16:05:31 -05002628 for (i = 0; i < psli->num_rings; i++) {
2629 pring = &psli->ring[i];
2630 pring->flag |= LPFC_DEFERRED_RING_EVENT;
2631
2632 /*
2633 * Error everything on the txq since these iocbs have not been
2634 * given to the FW yet.
2635 */
James Smart2534ba72007-04-25 09:52:20 -04002636 list_splice_init(&pring->txq, &completions);
dea31012005-04-17 16:05:31 -05002637 pring->txq_cnt = 0;
2638
dea31012005-04-17 16:05:31 -05002639 }
dea31012005-04-17 16:05:31 -05002640 spin_unlock_irqrestore(phba->host->host_lock, flags);
2641
James Smart2534ba72007-04-25 09:52:20 -04002642 while (!list_empty(&completions)) {
2643 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
2644 cmd = &iocb->iocb;
2645 list_del(&iocb->list);
2646
2647 if (iocb->iocb_cmpl) {
2648 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
2649 cmd->un.ulpWord[4] = IOERR_SLI_DOWN;
2650 (iocb->iocb_cmpl) (phba, iocb, iocb);
2651 } else
2652 lpfc_sli_release_iocbq(phba, iocb);
2653 }
2654
dea31012005-04-17 16:05:31 -05002655 /* Return any active mbox cmds */
2656 del_timer_sync(&psli->mbox_tmo);
2657 spin_lock_irqsave(phba->host->host_lock, flags);
2658 phba->work_hba_events &= ~WORKER_MBOX_TMO;
2659 if (psli->mbox_active) {
2660 pmb = psli->mbox_active;
2661 pmb->mb.mbxStatus = MBX_NOT_FINISHED;
2662 if (pmb->mbox_cmpl) {
2663 spin_unlock_irqrestore(phba->host->host_lock, flags);
2664 pmb->mbox_cmpl(phba,pmb);
2665 spin_lock_irqsave(phba->host->host_lock, flags);
2666 }
2667 }
2668 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
2669 psli->mbox_active = NULL;
2670
2671 /* Return any pending mbox cmds */
2672 while ((pmb = lpfc_mbox_get(phba)) != NULL) {
2673 pmb->mb.mbxStatus = MBX_NOT_FINISHED;
2674 if (pmb->mbox_cmpl) {
2675 spin_unlock_irqrestore(phba->host->host_lock, flags);
2676 pmb->mbox_cmpl(phba,pmb);
2677 spin_lock_irqsave(phba->host->host_lock, flags);
2678 }
2679 }
2680
2681 INIT_LIST_HEAD(&psli->mboxq);
2682
2683 spin_unlock_irqrestore(phba->host->host_lock, flags);
2684
dea31012005-04-17 16:05:31 -05002685 return 1;
2686}
2687
2688void
2689lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
2690{
2691 uint32_t *src = srcp;
2692 uint32_t *dest = destp;
2693 uint32_t ldata;
2694 int i;
2695
2696 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
2697 ldata = *src;
2698 ldata = le32_to_cpu(ldata);
2699 *dest = ldata;
2700 src++;
2701 dest++;
2702 }
2703}
2704
2705int
2706lpfc_sli_ringpostbuf_put(struct lpfc_hba * phba, struct lpfc_sli_ring * pring,
2707 struct lpfc_dmabuf * mp)
2708{
2709 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
2710 later */
2711 list_add_tail(&mp->list, &pring->postbufq);
2712
2713 pring->postbufq_cnt++;
2714 return 0;
2715}
2716
2717
2718struct lpfc_dmabuf *
2719lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2720 dma_addr_t phys)
2721{
2722 struct lpfc_dmabuf *mp, *next_mp;
2723 struct list_head *slp = &pring->postbufq;
2724
2725 /* Search postbufq, from the begining, looking for a match on phys */
2726 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
2727 if (mp->phys == phys) {
2728 list_del_init(&mp->list);
2729 pring->postbufq_cnt--;
2730 return mp;
2731 }
2732 }
2733
2734 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2735 "%d:0410 Cannot find virtual addr for mapped buf on "
2736 "ring %d Data x%llx x%p x%p x%x\n",
2737 phba->brd_no, pring->ringno, (unsigned long long)phys,
2738 slp->next, slp->prev, pring->postbufq_cnt);
2739 return NULL;
2740}
2741
2742static void
James Smart07951072007-04-25 09:51:38 -04002743lpfc_sli_abort_els_cmpl(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
2744 struct lpfc_iocbq * rspiocb)
dea31012005-04-17 16:05:31 -05002745{
James Smart2680eea2007-04-25 09:52:55 -04002746 IOCB_t *irsp;
2747 uint16_t abort_iotag, abort_context;
2748 struct lpfc_iocbq *abort_iocb, *rsp_ab_iocb;
2749 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
2750
2751 abort_iocb = NULL;
2752 irsp = &rspiocb->iocb;
2753
James Smart07951072007-04-25 09:51:38 -04002754 spin_lock_irq(phba->host->host_lock);
James Smart2680eea2007-04-25 09:52:55 -04002755
2756 if (irsp->ulpStatus) {
2757 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
2758 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
2759
2760 if (abort_iotag != 0 && abort_iotag <= phba->sli.last_iotag)
2761 abort_iocb = phba->sli.iocbq_lookup[abort_iotag];
2762
2763 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2764 "%d:0327 Cannot abort els iocb %p"
2765 " with tag %x context %x\n",
2766 phba->brd_no, abort_iocb,
2767 abort_iotag, abort_context);
2768
2769 /*
2770 * make sure we have the right iocbq before taking it
2771 * off the txcmplq and try to call completion routine.
2772 */
2773 if (abort_iocb &&
2774 abort_iocb->iocb.ulpContext == abort_context &&
2775 abort_iocb->iocb_flag & LPFC_DRIVER_ABORTED) {
2776 list_del(&abort_iocb->list);
2777 pring->txcmplq_cnt--;
2778
2779 rsp_ab_iocb = lpfc_sli_get_iocbq(phba);
2780 if (rsp_ab_iocb == NULL)
2781 lpfc_sli_release_iocbq(phba, abort_iocb);
2782 else {
2783 abort_iocb->iocb_flag &=
2784 ~LPFC_DRIVER_ABORTED;
2785 rsp_ab_iocb->iocb.ulpStatus =
2786 IOSTAT_LOCAL_REJECT;
2787 rsp_ab_iocb->iocb.un.ulpWord[4] =
2788 IOERR_SLI_ABORTED;
2789 spin_unlock_irq(phba->host->host_lock);
2790 (abort_iocb->iocb_cmpl)
2791 (phba, abort_iocb, rsp_ab_iocb);
2792 spin_lock_irq(phba->host->host_lock);
2793 lpfc_sli_release_iocbq(phba, rsp_ab_iocb);
2794 }
2795 }
2796 }
2797
James Bottomley604a3e32005-10-29 10:28:33 -05002798 lpfc_sli_release_iocbq(phba, cmdiocb);
James Smart07951072007-04-25 09:51:38 -04002799 spin_unlock_irq(phba->host->host_lock);
dea31012005-04-17 16:05:31 -05002800 return;
2801}
2802
2803int
James Smart07951072007-04-25 09:51:38 -04002804lpfc_sli_issue_abort_iotag(struct lpfc_hba * phba,
2805 struct lpfc_sli_ring * pring,
2806 struct lpfc_iocbq * cmdiocb)
dea31012005-04-17 16:05:31 -05002807{
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04002808 struct lpfc_iocbq *abtsiocbp;
dea31012005-04-17 16:05:31 -05002809 IOCB_t *icmd = NULL;
2810 IOCB_t *iabt = NULL;
James Smart07951072007-04-25 09:51:38 -04002811 int retval = IOCB_ERROR;
2812
2813 /* There are certain command types we don't want
2814 * to abort.
2815 */
2816 icmd = &cmdiocb->iocb;
2817 if ((icmd->ulpCommand == CMD_ABORT_XRI_CN) ||
2818 (icmd->ulpCommand == CMD_CLOSE_XRI_CN))
2819 return 0;
2820
2821 /* If we're unloading, interrupts are disabled so we
2822 * need to cleanup the iocb here.
2823 */
2824 if (phba->fc_flag & FC_UNLOADING)
2825 goto abort_iotag_exit;
dea31012005-04-17 16:05:31 -05002826
2827 /* issue ABTS for this IOCB based on iotag */
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04002828 abtsiocbp = lpfc_sli_get_iocbq(phba);
dea31012005-04-17 16:05:31 -05002829 if (abtsiocbp == NULL)
2830 return 0;
dea31012005-04-17 16:05:31 -05002831
James Smart07951072007-04-25 09:51:38 -04002832 /* This signals the response to set the correct status
2833 * before calling the completion handler.
2834 */
2835 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
2836
dea31012005-04-17 16:05:31 -05002837 iabt = &abtsiocbp->iocb;
James Smart07951072007-04-25 09:51:38 -04002838 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
2839 iabt->un.acxri.abortContextTag = icmd->ulpContext;
2840 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
dea31012005-04-17 16:05:31 -05002841 iabt->ulpLe = 1;
James Smart07951072007-04-25 09:51:38 -04002842 iabt->ulpClass = icmd->ulpClass;
dea31012005-04-17 16:05:31 -05002843
James Smart07951072007-04-25 09:51:38 -04002844 if (phba->hba_state >= LPFC_LINK_UP)
2845 iabt->ulpCommand = CMD_ABORT_XRI_CN;
2846 else
2847 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
2848
2849 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
James Smart5b8bd0c2007-04-25 09:52:49 -04002850
2851 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2852 "%d:0339 Abort xri x%x, original iotag x%x, abort "
2853 "cmd iotag x%x\n",
2854 phba->brd_no, iabt->un.acxri.abortContextTag,
2855 iabt->un.acxri.abortIoTag, abtsiocbp->iotag);
James Smart07951072007-04-25 09:51:38 -04002856 retval = lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0);
2857
2858abort_iotag_exit:
2859
2860 /* If we could not issue an abort dequeue the iocb and handle
2861 * the completion here.
2862 */
2863 if (retval == IOCB_ERROR) {
2864 list_del(&cmdiocb->list);
2865 pring->txcmplq_cnt--;
2866
2867 if (cmdiocb->iocb_cmpl) {
2868 icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
2869 icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
2870 spin_unlock_irq(phba->host->host_lock);
2871 (cmdiocb->iocb_cmpl) (phba, cmdiocb, cmdiocb);
2872 spin_lock_irq(phba->host->host_lock);
2873 } else
2874 lpfc_sli_release_iocbq(phba, cmdiocb);
dea31012005-04-17 16:05:31 -05002875 }
2876
2877 return 1;
2878}
2879
2880static int
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04002881lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, uint16_t tgt_id,
2882 uint64_t lun_id, uint32_t ctx,
2883 lpfc_ctx_cmd ctx_cmd)
dea31012005-04-17 16:05:31 -05002884{
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04002885 struct lpfc_scsi_buf *lpfc_cmd;
2886 struct scsi_cmnd *cmnd;
dea31012005-04-17 16:05:31 -05002887 int rc = 1;
2888
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04002889 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
2890 return rc;
2891
2892 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
2893 cmnd = lpfc_cmd->pCmd;
2894
2895 if (cmnd == NULL)
dea31012005-04-17 16:05:31 -05002896 return rc;
2897
2898 switch (ctx_cmd) {
2899 case LPFC_CTX_LUN:
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04002900 if ((cmnd->device->id == tgt_id) &&
2901 (cmnd->device->lun == lun_id))
dea31012005-04-17 16:05:31 -05002902 rc = 0;
2903 break;
2904 case LPFC_CTX_TGT:
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04002905 if (cmnd->device->id == tgt_id)
dea31012005-04-17 16:05:31 -05002906 rc = 0;
2907 break;
2908 case LPFC_CTX_CTX:
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04002909 if (iocbq->iocb.ulpContext == ctx)
dea31012005-04-17 16:05:31 -05002910 rc = 0;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04002911 break;
dea31012005-04-17 16:05:31 -05002912 case LPFC_CTX_HOST:
2913 rc = 0;
2914 break;
2915 default:
2916 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
2917 __FUNCTION__, ctx_cmd);
2918 break;
2919 }
2920
2921 return rc;
2922}
2923
2924int
2925lpfc_sli_sum_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2926 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd ctx_cmd)
2927{
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04002928 struct lpfc_iocbq *iocbq;
2929 int sum, i;
dea31012005-04-17 16:05:31 -05002930
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04002931 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
2932 iocbq = phba->sli.iocbq_lookup[i];
dea31012005-04-17 16:05:31 -05002933
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04002934 if (lpfc_sli_validate_fcp_iocb (iocbq, tgt_id, lun_id,
2935 0, ctx_cmd) == 0)
2936 sum++;
dea31012005-04-17 16:05:31 -05002937 }
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04002938
dea31012005-04-17 16:05:31 -05002939 return sum;
2940}
2941
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -04002942void
2943lpfc_sli_abort_fcp_cmpl(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
2944 struct lpfc_iocbq * rspiocb)
2945{
James Smart7054a602007-04-25 09:52:34 -04002946 unsigned long iflags;
2947
2948 spin_lock_irqsave(phba->host->host_lock, iflags);
James Bottomley604a3e32005-10-29 10:28:33 -05002949 lpfc_sli_release_iocbq(phba, cmdiocb);
James Smart7054a602007-04-25 09:52:34 -04002950 spin_unlock_irqrestore(phba->host->host_lock, iflags);
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -04002951 return;
2952}
2953
dea31012005-04-17 16:05:31 -05002954int
2955lpfc_sli_abort_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2956 uint16_t tgt_id, uint64_t lun_id, uint32_t ctx,
2957 lpfc_ctx_cmd abort_cmd)
2958{
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04002959 struct lpfc_iocbq *iocbq;
2960 struct lpfc_iocbq *abtsiocb;
dea31012005-04-17 16:05:31 -05002961 IOCB_t *cmd = NULL;
dea31012005-04-17 16:05:31 -05002962 int errcnt = 0, ret_val = 0;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04002963 int i;
dea31012005-04-17 16:05:31 -05002964
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04002965 for (i = 1; i <= phba->sli.last_iotag; i++) {
2966 iocbq = phba->sli.iocbq_lookup[i];
dea31012005-04-17 16:05:31 -05002967
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04002968 if (lpfc_sli_validate_fcp_iocb (iocbq, tgt_id, lun_id,
2969 0, abort_cmd) != 0)
dea31012005-04-17 16:05:31 -05002970 continue;
2971
2972 /* issue ABTS for this IOCB based on iotag */
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04002973 abtsiocb = lpfc_sli_get_iocbq(phba);
dea31012005-04-17 16:05:31 -05002974 if (abtsiocb == NULL) {
2975 errcnt++;
2976 continue;
2977 }
dea31012005-04-17 16:05:31 -05002978
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04002979 cmd = &iocbq->iocb;
dea31012005-04-17 16:05:31 -05002980 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
2981 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
2982 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
2983 abtsiocb->iocb.ulpLe = 1;
2984 abtsiocb->iocb.ulpClass = cmd->ulpClass;
2985
2986 if (phba->hba_state >= LPFC_LINK_UP)
2987 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
2988 else
2989 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
2990
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -04002991 /* Setup callback routine and issue the command. */
2992 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
dea31012005-04-17 16:05:31 -05002993 ret_val = lpfc_sli_issue_iocb(phba, pring, abtsiocb, 0);
2994 if (ret_val == IOCB_ERROR) {
James Bottomley604a3e32005-10-29 10:28:33 -05002995 lpfc_sli_release_iocbq(phba, abtsiocb);
dea31012005-04-17 16:05:31 -05002996 errcnt++;
2997 continue;
2998 }
2999 }
3000
3001 return errcnt;
3002}
3003
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04003004static void
3005lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
3006 struct lpfc_iocbq *cmdiocbq,
3007 struct lpfc_iocbq *rspiocbq)
dea31012005-04-17 16:05:31 -05003008{
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04003009 wait_queue_head_t *pdone_q;
3010 unsigned long iflags;
dea31012005-04-17 16:05:31 -05003011
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04003012 spin_lock_irqsave(phba->host->host_lock, iflags);
3013 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
3014 if (cmdiocbq->context2 && rspiocbq)
3015 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
3016 &rspiocbq->iocb, sizeof(IOCB_t));
3017
3018 pdone_q = cmdiocbq->context_un.wait_queue;
3019 spin_unlock_irqrestore(phba->host->host_lock, iflags);
3020 if (pdone_q)
3021 wake_up(pdone_q);
dea31012005-04-17 16:05:31 -05003022 return;
3023}
3024
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04003025/*
3026 * Issue the caller's iocb and wait for its completion, but no longer than the
3027 * caller's timeout. Note that iocb_flags is cleared before the
3028 * lpfc_sli_issue_call since the wake routine sets a unique value and by
3029 * definition this is a wait function.
3030 */
dea31012005-04-17 16:05:31 -05003031int
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04003032lpfc_sli_issue_iocb_wait(struct lpfc_hba * phba,
3033 struct lpfc_sli_ring * pring,
3034 struct lpfc_iocbq * piocb,
3035 struct lpfc_iocbq * prspiocbq,
3036 uint32_t timeout)
dea31012005-04-17 16:05:31 -05003037{
Peter Zijlstra7259f0d2006-10-29 22:46:36 -08003038 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04003039 long timeleft, timeout_req = 0;
3040 int retval = IOCB_SUCCESS;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05003041 uint32_t creg_val;
dea31012005-04-17 16:05:31 -05003042
3043 /*
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04003044 * If the caller has provided a response iocbq buffer, then context2
3045 * is NULL or its an error.
dea31012005-04-17 16:05:31 -05003046 */
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04003047 if (prspiocbq) {
3048 if (piocb->context2)
3049 return IOCB_ERROR;
3050 piocb->context2 = prspiocbq;
dea31012005-04-17 16:05:31 -05003051 }
3052
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04003053 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
3054 piocb->context_un.wait_queue = &done_q;
3055 piocb->iocb_flag &= ~LPFC_IO_WAKE;
dea31012005-04-17 16:05:31 -05003056
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05003057 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
3058 creg_val = readl(phba->HCregaddr);
3059 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
3060 writel(creg_val, phba->HCregaddr);
3061 readl(phba->HCregaddr); /* flush */
3062 }
3063
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04003064 retval = lpfc_sli_issue_iocb(phba, pring, piocb, 0);
3065 if (retval == IOCB_SUCCESS) {
3066 timeout_req = timeout * HZ;
3067 spin_unlock_irq(phba->host->host_lock);
3068 timeleft = wait_event_timeout(done_q,
3069 piocb->iocb_flag & LPFC_IO_WAKE,
3070 timeout_req);
3071 spin_lock_irq(phba->host->host_lock);
dea31012005-04-17 16:05:31 -05003072
James Smart7054a602007-04-25 09:52:34 -04003073 if (piocb->iocb_flag & LPFC_IO_WAKE) {
3074 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3075 "%d:0331 IOCB wake signaled\n",
3076 phba->brd_no);
3077 } else if (timeleft == 0) {
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04003078 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smartdca94792006-08-01 07:34:08 -04003079 "%d:0338 IOCB wait timeout error - no "
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04003080 "wake response Data x%x\n",
3081 phba->brd_no, timeout);
3082 retval = IOCB_TIMEDOUT;
James Smart7054a602007-04-25 09:52:34 -04003083 } else {
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04003084 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3085 "%d:0330 IOCB wake NOT set, "
3086 "Data x%x x%lx\n", phba->brd_no,
3087 timeout, (timeleft / jiffies));
3088 retval = IOCB_TIMEDOUT;
dea31012005-04-17 16:05:31 -05003089 }
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04003090 } else {
3091 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3092 "%d:0332 IOCB wait issue failed, Data x%x\n",
3093 phba->brd_no, retval);
3094 retval = IOCB_ERROR;
dea31012005-04-17 16:05:31 -05003095 }
3096
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05003097 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
3098 creg_val = readl(phba->HCregaddr);
3099 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
3100 writel(creg_val, phba->HCregaddr);
3101 readl(phba->HCregaddr); /* flush */
3102 }
3103
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04003104 if (prspiocbq)
3105 piocb->context2 = NULL;
3106
3107 piocb->context_un.wait_queue = NULL;
3108 piocb->iocb_cmpl = NULL;
dea31012005-04-17 16:05:31 -05003109 return retval;
3110}
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04003111
dea31012005-04-17 16:05:31 -05003112int
3113lpfc_sli_issue_mbox_wait(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq,
3114 uint32_t timeout)
3115{
Peter Zijlstra7259f0d2006-10-29 22:46:36 -08003116 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
dea31012005-04-17 16:05:31 -05003117 int retval;
3118
3119 /* The caller must leave context1 empty. */
3120 if (pmboxq->context1 != 0) {
3121 return (MBX_NOT_FINISHED);
3122 }
3123
3124 /* setup wake call as IOCB callback */
3125 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
3126 /* setup context field to pass wait_queue pointer to wake function */
3127 pmboxq->context1 = &done_q;
3128
dea31012005-04-17 16:05:31 -05003129 /* now issue the command */
3130 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
3131
3132 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
James Smart7054a602007-04-25 09:52:34 -04003133 wait_event_interruptible_timeout(done_q,
3134 pmboxq->mbox_flag & LPFC_MBX_WAKE,
3135 timeout * HZ);
3136
dea31012005-04-17 16:05:31 -05003137 pmboxq->context1 = NULL;
James Smart7054a602007-04-25 09:52:34 -04003138 /*
3139 * if LPFC_MBX_WAKE flag is set the mailbox is completed
3140 * else do not free the resources.
3141 */
3142 if (pmboxq->mbox_flag & LPFC_MBX_WAKE)
dea31012005-04-17 16:05:31 -05003143 retval = MBX_SUCCESS;
James Smart7054a602007-04-25 09:52:34 -04003144 else
3145 retval = MBX_TIMEOUT;
dea31012005-04-17 16:05:31 -05003146 }
3147
dea31012005-04-17 16:05:31 -05003148 return retval;
3149}
3150
James Smartb4c02652006-07-06 15:50:43 -04003151int
3152lpfc_sli_flush_mbox_queue(struct lpfc_hba * phba)
3153{
3154 int i = 0;
3155
3156 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE && !phba->stopped) {
3157 if (i++ > LPFC_MBOX_TMO * 1000)
3158 return 1;
3159
3160 if (lpfc_sli_handle_mb_event(phba) == 0)
3161 i = 0;
3162
3163 msleep(1);
3164 }
3165
3166 return (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) ? 1 : 0;
3167}
3168
dea31012005-04-17 16:05:31 -05003169irqreturn_t
David Howells7d12e782006-10-05 14:55:46 +01003170lpfc_intr_handler(int irq, void *dev_id)
dea31012005-04-17 16:05:31 -05003171{
3172 struct lpfc_hba *phba;
3173 uint32_t ha_copy;
3174 uint32_t work_ha_copy;
3175 unsigned long status;
3176 int i;
3177 uint32_t control;
3178
3179 /*
3180 * Get the driver's phba structure from the dev_id and
3181 * assume the HBA is not interrupting.
3182 */
3183 phba = (struct lpfc_hba *) dev_id;
3184
3185 if (unlikely(!phba))
3186 return IRQ_NONE;
3187
Linas Vepstas8d63f372007-02-14 14:28:36 -06003188 /* If the pci channel is offline, ignore all the interrupts. */
3189 if (unlikely(pci_channel_offline(phba->pcidev)))
3190 return IRQ_NONE;
3191
dea31012005-04-17 16:05:31 -05003192 phba->sli.slistat.sli_intr++;
3193
3194 /*
3195 * Call the HBA to see if it is interrupting. If not, don't claim
3196 * the interrupt
3197 */
3198
3199 /* Ignore all interrupts during initialization. */
3200 if (unlikely(phba->hba_state < LPFC_LINK_DOWN))
3201 return IRQ_NONE;
3202
3203 /*
3204 * Read host attention register to determine interrupt source
3205 * Clear Attention Sources, except Error Attention (to
3206 * preserve status) and Link Attention
3207 */
3208 spin_lock(phba->host->host_lock);
3209 ha_copy = readl(phba->HAregaddr);
3210 writel((ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
3211 readl(phba->HAregaddr); /* flush */
3212 spin_unlock(phba->host->host_lock);
3213
3214 if (unlikely(!ha_copy))
3215 return IRQ_NONE;
3216
3217 work_ha_copy = ha_copy & phba->work_ha_mask;
3218
3219 if (unlikely(work_ha_copy)) {
3220 if (work_ha_copy & HA_LATT) {
3221 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
3222 /*
3223 * Turn off Link Attention interrupts
3224 * until CLEAR_LA done
3225 */
3226 spin_lock(phba->host->host_lock);
3227 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
3228 control = readl(phba->HCregaddr);
3229 control &= ~HC_LAINT_ENA;
3230 writel(control, phba->HCregaddr);
3231 readl(phba->HCregaddr); /* flush */
3232 spin_unlock(phba->host->host_lock);
3233 }
3234 else
3235 work_ha_copy &= ~HA_LATT;
3236 }
3237
3238 if (work_ha_copy & ~(HA_ERATT|HA_MBATT|HA_LATT)) {
3239 for (i = 0; i < phba->sli.num_rings; i++) {
3240 if (work_ha_copy & (HA_RXATT << (4*i))) {
3241 /*
3242 * Turn off Slow Rings interrupts
3243 */
3244 spin_lock(phba->host->host_lock);
3245 control = readl(phba->HCregaddr);
3246 control &= ~(HC_R0INT_ENA << i);
3247 writel(control, phba->HCregaddr);
3248 readl(phba->HCregaddr); /* flush */
3249 spin_unlock(phba->host->host_lock);
3250 }
3251 }
3252 }
3253
3254 if (work_ha_copy & HA_ERATT) {
3255 phba->hba_state = LPFC_HBA_ERROR;
3256 /*
3257 * There was a link/board error. Read the
3258 * status register to retrieve the error event
3259 * and process it.
3260 */
3261 phba->sli.slistat.err_attn_event++;
3262 /* Save status info */
3263 phba->work_hs = readl(phba->HSregaddr);
3264 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
3265 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
3266
3267 /* Clear Chip error bit */
3268 writel(HA_ERATT, phba->HAregaddr);
3269 readl(phba->HAregaddr); /* flush */
James Smart92908312006-03-07 15:04:13 -05003270 phba->stopped = 1;
dea31012005-04-17 16:05:31 -05003271 }
3272
3273 spin_lock(phba->host->host_lock);
3274 phba->work_ha |= work_ha_copy;
3275 if (phba->work_wait)
3276 wake_up(phba->work_wait);
3277 spin_unlock(phba->host->host_lock);
3278 }
3279
3280 ha_copy &= ~(phba->work_ha_mask);
3281
3282 /*
3283 * Process all events on FCP ring. Take the optimized path for
3284 * FCP IO. Any other IO is slow path and is handled by
3285 * the worker thread.
3286 */
3287 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
3288 status >>= (4*LPFC_FCP_RING);
3289 if (status & HA_RXATT)
3290 lpfc_sli_handle_fast_ring_event(phba,
3291 &phba->sli.ring[LPFC_FCP_RING],
3292 status);
James Smarta4bc3372006-12-02 13:34:16 -05003293
3294 if (phba->cfg_multi_ring_support == 2) {
3295 /*
3296 * Process all events on extra ring. Take the optimized path
3297 * for extra ring IO. Any other IO is slow path and is handled
3298 * by the worker thread.
3299 */
3300 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
3301 status >>= (4*LPFC_EXTRA_RING);
3302 if (status & HA_RXATT) {
3303 lpfc_sli_handle_fast_ring_event(phba,
3304 &phba->sli.ring[LPFC_EXTRA_RING],
3305 status);
3306 }
3307 }
dea31012005-04-17 16:05:31 -05003308 return IRQ_HANDLED;
3309
3310} /* lpfc_intr_handler */