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dea3101e | 1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
c44ce173 | 3 | * Fibre Channel Host Bus Adapters. * |
41415862 | 4 | * Copyright (C) 2004-2006 Emulex. All rights reserved. * |
c44ce173 | 5 | * EMULEX and SLI are trademarks of Emulex. * |
dea3101e | 6 | * www.emulex.com * |
c44ce173 | 7 | * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
dea3101e | 8 | * * |
9 | * This program is free software; you can redistribute it and/or * | |
c44ce173 JSEC |
10 | * modify it under the terms of version 2 of the GNU General * |
11 | * Public License as published by the Free Software Foundation. * | |
12 | * This program is distributed in the hope that it will be useful. * | |
13 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * | |
14 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * | |
15 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * | |
16 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * | |
17 | * TO BE LEGALLY INVALID. See the GNU General Public License for * | |
18 | * more details, a copy of which can be found in the file COPYING * | |
19 | * included with this package. * | |
dea3101e | 20 | *******************************************************************/ |
21 | ||
dea3101e | 22 | #include <linux/blkdev.h> |
23 | #include <linux/pci.h> | |
24 | #include <linux/interrupt.h> | |
25 | #include <linux/delay.h> | |
26 | ||
91886523 | 27 | #include <scsi/scsi.h> |
dea3101e | 28 | #include <scsi/scsi_cmnd.h> |
29 | #include <scsi/scsi_device.h> | |
30 | #include <scsi/scsi_host.h> | |
f888ba3c | 31 | #include <scsi/scsi_transport_fc.h> |
dea3101e | 32 | |
33 | #include "lpfc_hw.h" | |
34 | #include "lpfc_sli.h" | |
35 | #include "lpfc_disc.h" | |
36 | #include "lpfc_scsi.h" | |
37 | #include "lpfc.h" | |
38 | #include "lpfc_crtn.h" | |
39 | #include "lpfc_logmsg.h" | |
40 | #include "lpfc_compat.h" | |
41 | ||
42 | /* | |
43 | * Define macro to log: Mailbox command x%x cannot issue Data | |
44 | * This allows multiple uses of lpfc_msgBlk0311 | |
45 | * w/o perturbing log msg utility. | |
46 | */ | |
47 | #define LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag) \ | |
48 | lpfc_printf_log(phba, \ | |
49 | KERN_INFO, \ | |
50 | LOG_MBOX | LOG_SLI, \ | |
51 | "%d:0311 Mailbox command x%x cannot issue " \ | |
52 | "Data: x%x x%x x%x\n", \ | |
53 | phba->brd_no, \ | |
54 | mb->mbxCommand, \ | |
55 | phba->hba_state, \ | |
56 | psli->sli_flag, \ | |
57 | flag); | |
58 | ||
59 | ||
60 | /* There are only four IOCB completion types. */ | |
61 | typedef enum _lpfc_iocb_type { | |
62 | LPFC_UNKNOWN_IOCB, | |
63 | LPFC_UNSOL_IOCB, | |
64 | LPFC_SOL_IOCB, | |
65 | LPFC_ABORT_IOCB | |
66 | } lpfc_iocb_type; | |
67 | ||
0bd4ca25 JSEC |
68 | struct lpfc_iocbq * |
69 | lpfc_sli_get_iocbq(struct lpfc_hba * phba) | |
70 | { | |
71 | struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list; | |
72 | struct lpfc_iocbq * iocbq = NULL; | |
73 | ||
74 | list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list); | |
75 | return iocbq; | |
76 | } | |
77 | ||
604a3e30 JB |
78 | void |
79 | lpfc_sli_release_iocbq(struct lpfc_hba * phba, struct lpfc_iocbq * iocbq) | |
80 | { | |
81 | size_t start_clean = (size_t)(&((struct lpfc_iocbq *)NULL)->iocb); | |
82 | ||
83 | /* | |
84 | * Clean all volatile data fields, preserve iotag and node struct. | |
85 | */ | |
86 | memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean); | |
87 | list_add_tail(&iocbq->list, &phba->lpfc_iocb_list); | |
88 | } | |
89 | ||
dea3101e | 90 | /* |
91 | * Translate the iocb command to an iocb command type used to decide the final | |
92 | * disposition of each completed IOCB. | |
93 | */ | |
94 | static lpfc_iocb_type | |
95 | lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd) | |
96 | { | |
97 | lpfc_iocb_type type = LPFC_UNKNOWN_IOCB; | |
98 | ||
99 | if (iocb_cmnd > CMD_MAX_IOCB_CMD) | |
100 | return 0; | |
101 | ||
102 | switch (iocb_cmnd) { | |
103 | case CMD_XMIT_SEQUENCE_CR: | |
104 | case CMD_XMIT_SEQUENCE_CX: | |
105 | case CMD_XMIT_BCAST_CN: | |
106 | case CMD_XMIT_BCAST_CX: | |
107 | case CMD_ELS_REQUEST_CR: | |
108 | case CMD_ELS_REQUEST_CX: | |
109 | case CMD_CREATE_XRI_CR: | |
110 | case CMD_CREATE_XRI_CX: | |
111 | case CMD_GET_RPI_CN: | |
112 | case CMD_XMIT_ELS_RSP_CX: | |
113 | case CMD_GET_RPI_CR: | |
114 | case CMD_FCP_IWRITE_CR: | |
115 | case CMD_FCP_IWRITE_CX: | |
116 | case CMD_FCP_IREAD_CR: | |
117 | case CMD_FCP_IREAD_CX: | |
118 | case CMD_FCP_ICMND_CR: | |
119 | case CMD_FCP_ICMND_CX: | |
120 | case CMD_ADAPTER_MSG: | |
121 | case CMD_ADAPTER_DUMP: | |
122 | case CMD_XMIT_SEQUENCE64_CR: | |
123 | case CMD_XMIT_SEQUENCE64_CX: | |
124 | case CMD_XMIT_BCAST64_CN: | |
125 | case CMD_XMIT_BCAST64_CX: | |
126 | case CMD_ELS_REQUEST64_CR: | |
127 | case CMD_ELS_REQUEST64_CX: | |
128 | case CMD_FCP_IWRITE64_CR: | |
129 | case CMD_FCP_IWRITE64_CX: | |
130 | case CMD_FCP_IREAD64_CR: | |
131 | case CMD_FCP_IREAD64_CX: | |
132 | case CMD_FCP_ICMND64_CR: | |
133 | case CMD_FCP_ICMND64_CX: | |
134 | case CMD_GEN_REQUEST64_CR: | |
135 | case CMD_GEN_REQUEST64_CX: | |
136 | case CMD_XMIT_ELS_RSP64_CX: | |
137 | type = LPFC_SOL_IOCB; | |
138 | break; | |
139 | case CMD_ABORT_XRI_CN: | |
140 | case CMD_ABORT_XRI_CX: | |
141 | case CMD_CLOSE_XRI_CN: | |
142 | case CMD_CLOSE_XRI_CX: | |
143 | case CMD_XRI_ABORTED_CX: | |
144 | case CMD_ABORT_MXRI64_CN: | |
145 | type = LPFC_ABORT_IOCB; | |
146 | break; | |
147 | case CMD_RCV_SEQUENCE_CX: | |
148 | case CMD_RCV_ELS_REQ_CX: | |
149 | case CMD_RCV_SEQUENCE64_CX: | |
150 | case CMD_RCV_ELS_REQ64_CX: | |
151 | type = LPFC_UNSOL_IOCB; | |
152 | break; | |
153 | default: | |
154 | type = LPFC_UNKNOWN_IOCB; | |
155 | break; | |
156 | } | |
157 | ||
158 | return type; | |
159 | } | |
160 | ||
161 | static int | |
162 | lpfc_sli_ring_map(struct lpfc_hba * phba, LPFC_MBOXQ_t *pmb) | |
163 | { | |
164 | struct lpfc_sli *psli = &phba->sli; | |
165 | MAILBOX_t *pmbox = &pmb->mb; | |
166 | int i, rc; | |
167 | ||
168 | for (i = 0; i < psli->num_rings; i++) { | |
169 | phba->hba_state = LPFC_INIT_MBX_CMDS; | |
170 | lpfc_config_ring(phba, i, pmb); | |
171 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
172 | if (rc != MBX_SUCCESS) { | |
173 | lpfc_printf_log(phba, | |
174 | KERN_ERR, | |
175 | LOG_INIT, | |
176 | "%d:0446 Adapter failed to init, " | |
177 | "mbxCmd x%x CFG_RING, mbxStatus x%x, " | |
178 | "ring %d\n", | |
179 | phba->brd_no, | |
180 | pmbox->mbxCommand, | |
181 | pmbox->mbxStatus, | |
182 | i); | |
183 | phba->hba_state = LPFC_HBA_ERROR; | |
184 | return -ENXIO; | |
185 | } | |
186 | } | |
187 | return 0; | |
188 | } | |
189 | ||
190 | static int | |
191 | lpfc_sli_ringtxcmpl_put(struct lpfc_hba * phba, | |
192 | struct lpfc_sli_ring * pring, struct lpfc_iocbq * piocb) | |
193 | { | |
dea3101e | 194 | list_add_tail(&piocb->list, &pring->txcmplq); |
195 | pring->txcmplq_cnt++; | |
196 | if (unlikely(pring->ringno == LPFC_ELS_RING)) | |
197 | mod_timer(&phba->els_tmofunc, | |
198 | jiffies + HZ * (phba->fc_ratov << 1)); | |
199 | ||
dea3101e | 200 | return (0); |
201 | } | |
202 | ||
203 | static struct lpfc_iocbq * | |
204 | lpfc_sli_ringtx_get(struct lpfc_hba * phba, struct lpfc_sli_ring * pring) | |
205 | { | |
206 | struct list_head *dlp; | |
207 | struct lpfc_iocbq *cmd_iocb; | |
208 | ||
209 | dlp = &pring->txq; | |
210 | cmd_iocb = NULL; | |
211 | list_remove_head((&pring->txq), cmd_iocb, | |
212 | struct lpfc_iocbq, | |
213 | list); | |
214 | if (cmd_iocb) { | |
215 | /* If the first ptr is not equal to the list header, | |
216 | * deque the IOCBQ_t and return it. | |
217 | */ | |
218 | pring->txq_cnt--; | |
219 | } | |
220 | return (cmd_iocb); | |
221 | } | |
222 | ||
223 | static IOCB_t * | |
224 | lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
225 | { | |
4cc2da1d | 226 | struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno]; |
dea3101e | 227 | uint32_t max_cmd_idx = pring->numCiocb; |
228 | IOCB_t *iocb = NULL; | |
229 | ||
230 | if ((pring->next_cmdidx == pring->cmdidx) && | |
231 | (++pring->next_cmdidx >= max_cmd_idx)) | |
232 | pring->next_cmdidx = 0; | |
233 | ||
234 | if (unlikely(pring->local_getidx == pring->next_cmdidx)) { | |
235 | ||
236 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
237 | ||
238 | if (unlikely(pring->local_getidx >= max_cmd_idx)) { | |
239 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
240 | "%d:0315 Ring %d issue: portCmdGet %d " | |
241 | "is bigger then cmd ring %d\n", | |
242 | phba->brd_no, pring->ringno, | |
243 | pring->local_getidx, max_cmd_idx); | |
244 | ||
245 | phba->hba_state = LPFC_HBA_ERROR; | |
246 | /* | |
247 | * All error attention handlers are posted to | |
248 | * worker thread | |
249 | */ | |
250 | phba->work_ha |= HA_ERATT; | |
251 | phba->work_hs = HS_FFER3; | |
252 | if (phba->work_wait) | |
253 | wake_up(phba->work_wait); | |
254 | ||
255 | return NULL; | |
256 | } | |
257 | ||
258 | if (pring->local_getidx == pring->next_cmdidx) | |
259 | return NULL; | |
260 | } | |
261 | ||
262 | iocb = IOCB_ENTRY(pring->cmdringaddr, pring->cmdidx); | |
263 | ||
264 | return iocb; | |
265 | } | |
266 | ||
604a3e30 JB |
267 | uint16_t |
268 | lpfc_sli_next_iotag(struct lpfc_hba * phba, struct lpfc_iocbq * iocbq) | |
dea3101e | 269 | { |
604a3e30 JB |
270 | struct lpfc_iocbq ** new_arr; |
271 | struct lpfc_iocbq ** old_arr; | |
272 | size_t new_len; | |
273 | struct lpfc_sli *psli = &phba->sli; | |
274 | uint16_t iotag; | |
dea3101e | 275 | |
604a3e30 JB |
276 | spin_lock_irq(phba->host->host_lock); |
277 | iotag = psli->last_iotag; | |
278 | if(++iotag < psli->iocbq_lookup_len) { | |
279 | psli->last_iotag = iotag; | |
280 | psli->iocbq_lookup[iotag] = iocbq; | |
281 | spin_unlock_irq(phba->host->host_lock); | |
282 | iocbq->iotag = iotag; | |
283 | return iotag; | |
284 | } | |
285 | else if (psli->iocbq_lookup_len < (0xffff | |
286 | - LPFC_IOCBQ_LOOKUP_INCREMENT)) { | |
287 | new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT; | |
288 | spin_unlock_irq(phba->host->host_lock); | |
289 | new_arr = kmalloc(new_len * sizeof (struct lpfc_iocbq *), | |
290 | GFP_KERNEL); | |
291 | if (new_arr) { | |
292 | memset((char *)new_arr, 0, | |
293 | new_len * sizeof (struct lpfc_iocbq *)); | |
294 | spin_lock_irq(phba->host->host_lock); | |
295 | old_arr = psli->iocbq_lookup; | |
296 | if (new_len <= psli->iocbq_lookup_len) { | |
297 | /* highly unprobable case */ | |
298 | kfree(new_arr); | |
299 | iotag = psli->last_iotag; | |
300 | if(++iotag < psli->iocbq_lookup_len) { | |
301 | psli->last_iotag = iotag; | |
302 | psli->iocbq_lookup[iotag] = iocbq; | |
303 | spin_unlock_irq(phba->host->host_lock); | |
304 | iocbq->iotag = iotag; | |
305 | return iotag; | |
306 | } | |
307 | spin_unlock_irq(phba->host->host_lock); | |
308 | return 0; | |
309 | } | |
310 | if (psli->iocbq_lookup) | |
311 | memcpy(new_arr, old_arr, | |
312 | ((psli->last_iotag + 1) * | |
313 | sizeof (struct lpfc_iocbq *))); | |
314 | psli->iocbq_lookup = new_arr; | |
315 | psli->iocbq_lookup_len = new_len; | |
316 | psli->last_iotag = iotag; | |
317 | psli->iocbq_lookup[iotag] = iocbq; | |
318 | spin_unlock_irq(phba->host->host_lock); | |
319 | iocbq->iotag = iotag; | |
320 | kfree(old_arr); | |
321 | return iotag; | |
322 | } | |
dea3101e | 323 | } |
324 | ||
604a3e30 JB |
325 | lpfc_printf_log(phba, KERN_ERR,LOG_SLI, |
326 | "%d:0318 Failed to allocate IOTAG.last IOTAG is %d\n", | |
327 | phba->brd_no, psli->last_iotag); | |
dea3101e | 328 | |
604a3e30 | 329 | return 0; |
dea3101e | 330 | } |
331 | ||
332 | static void | |
333 | lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
334 | IOCB_t *iocb, struct lpfc_iocbq *nextiocb) | |
335 | { | |
336 | /* | |
604a3e30 | 337 | * Set up an iotag |
dea3101e | 338 | */ |
604a3e30 | 339 | nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0; |
dea3101e | 340 | |
341 | /* | |
342 | * Issue iocb command to adapter | |
343 | */ | |
344 | lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, sizeof (IOCB_t)); | |
345 | wmb(); | |
346 | pring->stats.iocb_cmd++; | |
347 | ||
348 | /* | |
349 | * If there is no completion routine to call, we can release the | |
350 | * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF, | |
351 | * that have no rsp ring completion, iocb_cmpl MUST be NULL. | |
352 | */ | |
353 | if (nextiocb->iocb_cmpl) | |
354 | lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb); | |
604a3e30 JB |
355 | else |
356 | lpfc_sli_release_iocbq(phba, nextiocb); | |
dea3101e | 357 | |
358 | /* | |
359 | * Let the HBA know what IOCB slot will be the next one the | |
360 | * driver will put a command into. | |
361 | */ | |
362 | pring->cmdidx = pring->next_cmdidx; | |
f91b392c | 363 | writel(pring->cmdidx, phba->MBslimaddr |
dea3101e | 364 | + (SLIMOFF + (pring->ringno * 2)) * 4); |
365 | } | |
366 | ||
367 | static void | |
368 | lpfc_sli_update_full_ring(struct lpfc_hba * phba, | |
369 | struct lpfc_sli_ring *pring) | |
370 | { | |
371 | int ringno = pring->ringno; | |
372 | ||
373 | pring->flag |= LPFC_CALL_RING_AVAILABLE; | |
374 | ||
375 | wmb(); | |
376 | ||
377 | /* | |
378 | * Set ring 'ringno' to SET R0CE_REQ in Chip Att register. | |
379 | * The HBA will tell us when an IOCB entry is available. | |
380 | */ | |
381 | writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr); | |
382 | readl(phba->CAregaddr); /* flush */ | |
383 | ||
384 | pring->stats.iocb_cmd_full++; | |
385 | } | |
386 | ||
387 | static void | |
388 | lpfc_sli_update_ring(struct lpfc_hba * phba, | |
389 | struct lpfc_sli_ring *pring) | |
390 | { | |
391 | int ringno = pring->ringno; | |
392 | ||
393 | /* | |
394 | * Tell the HBA that there is work to do in this ring. | |
395 | */ | |
396 | wmb(); | |
397 | writel(CA_R0ATT << (ringno * 4), phba->CAregaddr); | |
398 | readl(phba->CAregaddr); /* flush */ | |
399 | } | |
400 | ||
401 | static void | |
402 | lpfc_sli_resume_iocb(struct lpfc_hba * phba, struct lpfc_sli_ring * pring) | |
403 | { | |
404 | IOCB_t *iocb; | |
405 | struct lpfc_iocbq *nextiocb; | |
406 | ||
407 | /* | |
408 | * Check to see if: | |
409 | * (a) there is anything on the txq to send | |
410 | * (b) link is up | |
411 | * (c) link attention events can be processed (fcp ring only) | |
412 | * (d) IOCB processing is not blocked by the outstanding mbox command. | |
413 | */ | |
414 | if (pring->txq_cnt && | |
415 | (phba->hba_state > LPFC_LINK_DOWN) && | |
416 | (pring->ringno != phba->sli.fcp_ring || | |
417 | phba->sli.sli_flag & LPFC_PROCESS_LA) && | |
418 | !(pring->flag & LPFC_STOP_IOCB_MBX)) { | |
419 | ||
420 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && | |
421 | (nextiocb = lpfc_sli_ringtx_get(phba, pring))) | |
422 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
423 | ||
424 | if (iocb) | |
425 | lpfc_sli_update_ring(phba, pring); | |
426 | else | |
427 | lpfc_sli_update_full_ring(phba, pring); | |
428 | } | |
429 | ||
430 | return; | |
431 | } | |
432 | ||
433 | /* lpfc_sli_turn_on_ring is only called by lpfc_sli_handle_mb_event below */ | |
434 | static void | |
435 | lpfc_sli_turn_on_ring(struct lpfc_hba * phba, int ringno) | |
436 | { | |
4cc2da1d | 437 | struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[ringno]; |
dea3101e | 438 | |
439 | /* If the ring is active, flag it */ | |
440 | if (phba->sli.ring[ringno].cmdringaddr) { | |
441 | if (phba->sli.ring[ringno].flag & LPFC_STOP_IOCB_MBX) { | |
442 | phba->sli.ring[ringno].flag &= ~LPFC_STOP_IOCB_MBX; | |
443 | /* | |
444 | * Force update of the local copy of cmdGetInx | |
445 | */ | |
446 | phba->sli.ring[ringno].local_getidx | |
447 | = le32_to_cpu(pgp->cmdGetInx); | |
448 | spin_lock_irq(phba->host->host_lock); | |
449 | lpfc_sli_resume_iocb(phba, &phba->sli.ring[ringno]); | |
450 | spin_unlock_irq(phba->host->host_lock); | |
451 | } | |
452 | } | |
453 | } | |
454 | ||
455 | static int | |
456 | lpfc_sli_chk_mbx_command(uint8_t mbxCommand) | |
457 | { | |
458 | uint8_t ret; | |
459 | ||
460 | switch (mbxCommand) { | |
461 | case MBX_LOAD_SM: | |
462 | case MBX_READ_NV: | |
463 | case MBX_WRITE_NV: | |
464 | case MBX_RUN_BIU_DIAG: | |
465 | case MBX_INIT_LINK: | |
466 | case MBX_DOWN_LINK: | |
467 | case MBX_CONFIG_LINK: | |
468 | case MBX_CONFIG_RING: | |
469 | case MBX_RESET_RING: | |
470 | case MBX_READ_CONFIG: | |
471 | case MBX_READ_RCONFIG: | |
472 | case MBX_READ_SPARM: | |
473 | case MBX_READ_STATUS: | |
474 | case MBX_READ_RPI: | |
475 | case MBX_READ_XRI: | |
476 | case MBX_READ_REV: | |
477 | case MBX_READ_LNK_STAT: | |
478 | case MBX_REG_LOGIN: | |
479 | case MBX_UNREG_LOGIN: | |
480 | case MBX_READ_LA: | |
481 | case MBX_CLEAR_LA: | |
482 | case MBX_DUMP_MEMORY: | |
483 | case MBX_DUMP_CONTEXT: | |
484 | case MBX_RUN_DIAGS: | |
485 | case MBX_RESTART: | |
486 | case MBX_UPDATE_CFG: | |
487 | case MBX_DOWN_LOAD: | |
488 | case MBX_DEL_LD_ENTRY: | |
489 | case MBX_RUN_PROGRAM: | |
490 | case MBX_SET_MASK: | |
491 | case MBX_SET_SLIM: | |
492 | case MBX_UNREG_D_ID: | |
41415862 | 493 | case MBX_KILL_BOARD: |
dea3101e | 494 | case MBX_CONFIG_FARP: |
41415862 | 495 | case MBX_BEACON: |
dea3101e | 496 | case MBX_LOAD_AREA: |
497 | case MBX_RUN_BIU_DIAG64: | |
498 | case MBX_CONFIG_PORT: | |
499 | case MBX_READ_SPARM64: | |
500 | case MBX_READ_RPI64: | |
501 | case MBX_REG_LOGIN64: | |
502 | case MBX_READ_LA64: | |
503 | case MBX_FLASH_WR_ULA: | |
504 | case MBX_SET_DEBUG: | |
505 | case MBX_LOAD_EXP_ROM: | |
506 | ret = mbxCommand; | |
507 | break; | |
508 | default: | |
509 | ret = MBX_SHUTDOWN; | |
510 | break; | |
511 | } | |
512 | return (ret); | |
513 | } | |
514 | static void | |
515 | lpfc_sli_wake_mbox_wait(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) | |
516 | { | |
517 | wait_queue_head_t *pdone_q; | |
518 | ||
519 | /* | |
520 | * If pdone_q is empty, the driver thread gave up waiting and | |
521 | * continued running. | |
522 | */ | |
523 | pdone_q = (wait_queue_head_t *) pmboxq->context1; | |
524 | if (pdone_q) | |
525 | wake_up_interruptible(pdone_q); | |
526 | return; | |
527 | } | |
528 | ||
529 | void | |
530 | lpfc_sli_def_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) | |
531 | { | |
532 | struct lpfc_dmabuf *mp; | |
533 | mp = (struct lpfc_dmabuf *) (pmb->context1); | |
534 | if (mp) { | |
535 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
536 | kfree(mp); | |
537 | } | |
538 | mempool_free( pmb, phba->mbox_mem_pool); | |
539 | return; | |
540 | } | |
541 | ||
542 | int | |
543 | lpfc_sli_handle_mb_event(struct lpfc_hba * phba) | |
544 | { | |
545 | MAILBOX_t *mbox; | |
546 | MAILBOX_t *pmbox; | |
547 | LPFC_MBOXQ_t *pmb; | |
548 | struct lpfc_sli *psli; | |
549 | int i, rc; | |
550 | uint32_t process_next; | |
551 | ||
552 | psli = &phba->sli; | |
553 | /* We should only get here if we are in SLI2 mode */ | |
554 | if (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE)) { | |
555 | return (1); | |
556 | } | |
557 | ||
558 | phba->sli.slistat.mbox_event++; | |
559 | ||
560 | /* Get a Mailbox buffer to setup mailbox commands for callback */ | |
561 | if ((pmb = phba->sli.mbox_active)) { | |
562 | pmbox = &pmb->mb; | |
4cc2da1d | 563 | mbox = &phba->slim2p->mbx; |
dea3101e | 564 | |
565 | /* First check out the status word */ | |
566 | lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof (uint32_t)); | |
567 | ||
568 | /* Sanity check to ensure the host owns the mailbox */ | |
569 | if (pmbox->mbxOwner != OWN_HOST) { | |
570 | /* Lets try for a while */ | |
571 | for (i = 0; i < 10240; i++) { | |
572 | /* First copy command data */ | |
573 | lpfc_sli_pcimem_bcopy(mbox, pmbox, | |
574 | sizeof (uint32_t)); | |
575 | if (pmbox->mbxOwner == OWN_HOST) | |
576 | goto mbout; | |
577 | } | |
578 | /* Stray Mailbox Interrupt, mbxCommand <cmd> mbxStatus | |
579 | <status> */ | |
580 | lpfc_printf_log(phba, | |
b4c02652 | 581 | KERN_WARNING, |
dea3101e | 582 | LOG_MBOX | LOG_SLI, |
583 | "%d:0304 Stray Mailbox Interrupt " | |
584 | "mbxCommand x%x mbxStatus x%x\n", | |
585 | phba->brd_no, | |
586 | pmbox->mbxCommand, | |
587 | pmbox->mbxStatus); | |
588 | ||
589 | spin_lock_irq(phba->host->host_lock); | |
590 | phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE; | |
591 | spin_unlock_irq(phba->host->host_lock); | |
592 | return (1); | |
593 | } | |
594 | ||
595 | mbout: | |
596 | del_timer_sync(&phba->sli.mbox_tmo); | |
597 | phba->work_hba_events &= ~WORKER_MBOX_TMO; | |
598 | ||
599 | /* | |
600 | * It is a fatal error if unknown mbox command completion. | |
601 | */ | |
602 | if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) == | |
603 | MBX_SHUTDOWN) { | |
604 | ||
605 | /* Unknow mailbox command compl */ | |
606 | lpfc_printf_log(phba, | |
607 | KERN_ERR, | |
608 | LOG_MBOX | LOG_SLI, | |
609 | "%d:0323 Unknown Mailbox command %x Cmpl\n", | |
610 | phba->brd_no, | |
611 | pmbox->mbxCommand); | |
612 | phba->hba_state = LPFC_HBA_ERROR; | |
613 | phba->work_hs = HS_FFER3; | |
614 | lpfc_handle_eratt(phba); | |
615 | return (0); | |
616 | } | |
617 | ||
618 | phba->sli.mbox_active = NULL; | |
619 | if (pmbox->mbxStatus) { | |
620 | phba->sli.slistat.mbox_stat_err++; | |
621 | if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) { | |
622 | /* Mbox cmd cmpl error - RETRYing */ | |
623 | lpfc_printf_log(phba, | |
624 | KERN_INFO, | |
625 | LOG_MBOX | LOG_SLI, | |
626 | "%d:0305 Mbox cmd cmpl error - " | |
627 | "RETRYing Data: x%x x%x x%x x%x\n", | |
628 | phba->brd_no, | |
629 | pmbox->mbxCommand, | |
630 | pmbox->mbxStatus, | |
631 | pmbox->un.varWords[0], | |
632 | phba->hba_state); | |
633 | pmbox->mbxStatus = 0; | |
634 | pmbox->mbxOwner = OWN_HOST; | |
635 | spin_lock_irq(phba->host->host_lock); | |
636 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
637 | spin_unlock_irq(phba->host->host_lock); | |
638 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
639 | if (rc == MBX_SUCCESS) | |
640 | return (0); | |
641 | } | |
642 | } | |
643 | ||
644 | /* Mailbox cmd <cmd> Cmpl <cmpl> */ | |
645 | lpfc_printf_log(phba, | |
646 | KERN_INFO, | |
647 | LOG_MBOX | LOG_SLI, | |
648 | "%d:0307 Mailbox cmd x%x Cmpl x%p " | |
649 | "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n", | |
650 | phba->brd_no, | |
651 | pmbox->mbxCommand, | |
652 | pmb->mbox_cmpl, | |
653 | *((uint32_t *) pmbox), | |
654 | pmbox->un.varWords[0], | |
655 | pmbox->un.varWords[1], | |
656 | pmbox->un.varWords[2], | |
657 | pmbox->un.varWords[3], | |
658 | pmbox->un.varWords[4], | |
659 | pmbox->un.varWords[5], | |
660 | pmbox->un.varWords[6], | |
661 | pmbox->un.varWords[7]); | |
662 | ||
663 | if (pmb->mbox_cmpl) { | |
664 | lpfc_sli_pcimem_bcopy(mbox, pmbox, MAILBOX_CMD_SIZE); | |
665 | pmb->mbox_cmpl(phba,pmb); | |
666 | } | |
667 | } | |
668 | ||
669 | ||
670 | do { | |
671 | process_next = 0; /* by default don't loop */ | |
672 | spin_lock_irq(phba->host->host_lock); | |
673 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
674 | ||
675 | /* Process next mailbox command if there is one */ | |
676 | if ((pmb = lpfc_mbox_get(phba))) { | |
677 | spin_unlock_irq(phba->host->host_lock); | |
678 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
679 | if (rc == MBX_NOT_FINISHED) { | |
680 | pmb->mb.mbxStatus = MBX_NOT_FINISHED; | |
681 | pmb->mbox_cmpl(phba,pmb); | |
682 | process_next = 1; | |
683 | continue; /* loop back */ | |
684 | } | |
685 | } else { | |
686 | spin_unlock_irq(phba->host->host_lock); | |
687 | /* Turn on IOCB processing */ | |
688 | for (i = 0; i < phba->sli.num_rings; i++) { | |
689 | lpfc_sli_turn_on_ring(phba, i); | |
690 | } | |
691 | ||
692 | /* Free any lpfc_dmabuf's waiting for mbox cmd cmpls */ | |
693 | while (!list_empty(&phba->freebufList)) { | |
694 | struct lpfc_dmabuf *mp; | |
695 | ||
696 | mp = NULL; | |
697 | list_remove_head((&phba->freebufList), | |
698 | mp, | |
699 | struct lpfc_dmabuf, | |
700 | list); | |
701 | if (mp) { | |
702 | lpfc_mbuf_free(phba, mp->virt, | |
703 | mp->phys); | |
704 | kfree(mp); | |
705 | } | |
706 | } | |
707 | } | |
708 | ||
709 | } while (process_next); | |
710 | ||
711 | return (0); | |
712 | } | |
713 | static int | |
714 | lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
715 | struct lpfc_iocbq *saveq) | |
716 | { | |
717 | IOCB_t * irsp; | |
718 | WORD5 * w5p; | |
719 | uint32_t Rctl, Type; | |
720 | uint32_t match, i; | |
721 | ||
722 | match = 0; | |
723 | irsp = &(saveq->iocb); | |
724 | if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) | |
725 | || (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX)) { | |
726 | Rctl = FC_ELS_REQ; | |
727 | Type = FC_ELS_DATA; | |
728 | } else { | |
729 | w5p = | |
730 | (WORD5 *) & (saveq->iocb.un. | |
731 | ulpWord[5]); | |
732 | Rctl = w5p->hcsw.Rctl; | |
733 | Type = w5p->hcsw.Type; | |
734 | ||
735 | /* Firmware Workaround */ | |
736 | if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) && | |
737 | (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX)) { | |
738 | Rctl = FC_ELS_REQ; | |
739 | Type = FC_ELS_DATA; | |
740 | w5p->hcsw.Rctl = Rctl; | |
741 | w5p->hcsw.Type = Type; | |
742 | } | |
743 | } | |
744 | /* unSolicited Responses */ | |
745 | if (pring->prt[0].profile) { | |
cf5bf97e JW |
746 | if (pring->prt[0].lpfc_sli_rcv_unsol_event) |
747 | (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring, | |
748 | saveq); | |
dea3101e | 749 | match = 1; |
750 | } else { | |
751 | /* We must search, based on rctl / type | |
752 | for the right routine */ | |
753 | for (i = 0; i < pring->num_mask; | |
754 | i++) { | |
755 | if ((pring->prt[i].rctl == | |
756 | Rctl) | |
757 | && (pring->prt[i]. | |
758 | type == Type)) { | |
cf5bf97e JW |
759 | if (pring->prt[i].lpfc_sli_rcv_unsol_event) |
760 | (pring->prt[i].lpfc_sli_rcv_unsol_event) | |
761 | (phba, pring, saveq); | |
dea3101e | 762 | match = 1; |
763 | break; | |
764 | } | |
765 | } | |
766 | } | |
767 | if (match == 0) { | |
768 | /* Unexpected Rctl / Type received */ | |
769 | /* Ring <ringno> handler: unexpected | |
770 | Rctl <Rctl> Type <Type> received */ | |
771 | lpfc_printf_log(phba, | |
772 | KERN_WARNING, | |
773 | LOG_SLI, | |
774 | "%d:0313 Ring %d handler: unexpected Rctl x%x " | |
775 | "Type x%x received \n", | |
776 | phba->brd_no, | |
777 | pring->ringno, | |
778 | Rctl, | |
779 | Type); | |
780 | } | |
781 | return(1); | |
782 | } | |
783 | ||
784 | static struct lpfc_iocbq * | |
604a3e30 JB |
785 | lpfc_sli_iocbq_lookup(struct lpfc_hba * phba, |
786 | struct lpfc_sli_ring * pring, | |
787 | struct lpfc_iocbq * prspiocb) | |
dea3101e | 788 | { |
dea3101e | 789 | struct lpfc_iocbq *cmd_iocb = NULL; |
790 | uint16_t iotag; | |
791 | ||
604a3e30 JB |
792 | iotag = prspiocb->iocb.ulpIoTag; |
793 | ||
794 | if (iotag != 0 && iotag <= phba->sli.last_iotag) { | |
795 | cmd_iocb = phba->sli.iocbq_lookup[iotag]; | |
796 | list_del(&cmd_iocb->list); | |
797 | pring->txcmplq_cnt--; | |
798 | return cmd_iocb; | |
dea3101e | 799 | } |
800 | ||
dea3101e | 801 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
604a3e30 JB |
802 | "%d:0317 iotag x%x is out off " |
803 | "range: max iotag x%x wd0 x%x\n", | |
804 | phba->brd_no, iotag, | |
805 | phba->sli.last_iotag, | |
806 | *(((uint32_t *) &prspiocb->iocb) + 7)); | |
dea3101e | 807 | return NULL; |
808 | } | |
809 | ||
810 | static int | |
811 | lpfc_sli_process_sol_iocb(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, | |
812 | struct lpfc_iocbq *saveq) | |
813 | { | |
814 | struct lpfc_iocbq * cmdiocbp; | |
815 | int rc = 1; | |
816 | unsigned long iflag; | |
817 | ||
818 | /* Based on the iotag field, get the cmd IOCB from the txcmplq */ | |
819 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
604a3e30 | 820 | cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq); |
dea3101e | 821 | if (cmdiocbp) { |
822 | if (cmdiocbp->iocb_cmpl) { | |
823 | /* | |
824 | * Post all ELS completions to the worker thread. | |
825 | * All other are passed to the completion callback. | |
826 | */ | |
827 | if (pring->ringno == LPFC_ELS_RING) { | |
828 | spin_unlock_irqrestore(phba->host->host_lock, | |
829 | iflag); | |
830 | (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq); | |
831 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
832 | } | |
833 | else { | |
dea3101e | 834 | spin_unlock_irqrestore(phba->host->host_lock, |
835 | iflag); | |
836 | (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq); | |
837 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
838 | } | |
604a3e30 JB |
839 | } else |
840 | lpfc_sli_release_iocbq(phba, cmdiocbp); | |
dea3101e | 841 | } else { |
842 | /* | |
843 | * Unknown initiating command based on the response iotag. | |
844 | * This could be the case on the ELS ring because of | |
845 | * lpfc_els_abort(). | |
846 | */ | |
847 | if (pring->ringno != LPFC_ELS_RING) { | |
848 | /* | |
849 | * Ring <ringno> handler: unexpected completion IoTag | |
850 | * <IoTag> | |
851 | */ | |
852 | lpfc_printf_log(phba, | |
853 | KERN_WARNING, | |
854 | LOG_SLI, | |
855 | "%d:0322 Ring %d handler: unexpected " | |
856 | "completion IoTag x%x Data: x%x x%x x%x x%x\n", | |
857 | phba->brd_no, | |
858 | pring->ringno, | |
859 | saveq->iocb.ulpIoTag, | |
860 | saveq->iocb.ulpStatus, | |
861 | saveq->iocb.un.ulpWord[4], | |
862 | saveq->iocb.ulpCommand, | |
863 | saveq->iocb.ulpContext); | |
864 | } | |
865 | } | |
68876920 | 866 | |
dea3101e | 867 | spin_unlock_irqrestore(phba->host->host_lock, iflag); |
868 | return rc; | |
869 | } | |
870 | ||
875fbdfe JSEC |
871 | static void lpfc_sli_rsp_pointers_error(struct lpfc_hba * phba, |
872 | struct lpfc_sli_ring * pring) | |
873 | { | |
874 | struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno]; | |
875 | /* | |
876 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger then | |
877 | * rsp ring <portRspMax> | |
878 | */ | |
879 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
880 | "%d:0312 Ring %d handler: portRspPut %d " | |
881 | "is bigger then rsp ring %d\n", | |
882 | phba->brd_no, pring->ringno, | |
883 | le32_to_cpu(pgp->rspPutInx), | |
884 | pring->numRiocb); | |
885 | ||
886 | phba->hba_state = LPFC_HBA_ERROR; | |
887 | ||
888 | /* | |
889 | * All error attention handlers are posted to | |
890 | * worker thread | |
891 | */ | |
892 | phba->work_ha |= HA_ERATT; | |
893 | phba->work_hs = HS_FFER3; | |
894 | if (phba->work_wait) | |
895 | wake_up(phba->work_wait); | |
896 | ||
897 | return; | |
898 | } | |
899 | ||
900 | void lpfc_sli_poll_fcp_ring(struct lpfc_hba * phba) | |
901 | { | |
902 | struct lpfc_sli * psli = &phba->sli; | |
903 | struct lpfc_sli_ring * pring = &psli->ring[LPFC_FCP_RING]; | |
904 | IOCB_t *irsp = NULL; | |
905 | IOCB_t *entry = NULL; | |
906 | struct lpfc_iocbq *cmdiocbq = NULL; | |
907 | struct lpfc_iocbq rspiocbq; | |
908 | struct lpfc_pgp *pgp; | |
909 | uint32_t status; | |
910 | uint32_t portRspPut, portRspMax; | |
911 | int type; | |
912 | uint32_t rsp_cmpl = 0; | |
913 | void __iomem *to_slim; | |
914 | uint32_t ha_copy; | |
915 | ||
916 | pring->stats.iocb_event++; | |
917 | ||
918 | /* The driver assumes SLI-2 mode */ | |
919 | pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno]; | |
920 | ||
921 | /* | |
922 | * The next available response entry should never exceed the maximum | |
923 | * entries. If it does, treat it as an adapter hardware error. | |
924 | */ | |
925 | portRspMax = pring->numRiocb; | |
926 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
927 | if (unlikely(portRspPut >= portRspMax)) { | |
928 | lpfc_sli_rsp_pointers_error(phba, pring); | |
929 | return; | |
930 | } | |
931 | ||
932 | rmb(); | |
933 | while (pring->rspidx != portRspPut) { | |
934 | ||
935 | entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx); | |
936 | ||
937 | if (++pring->rspidx >= portRspMax) | |
938 | pring->rspidx = 0; | |
939 | ||
940 | lpfc_sli_pcimem_bcopy((uint32_t *) entry, | |
941 | (uint32_t *) &rspiocbq.iocb, | |
942 | sizeof (IOCB_t)); | |
943 | irsp = &rspiocbq.iocb; | |
944 | type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); | |
945 | pring->stats.iocb_rsp++; | |
946 | rsp_cmpl++; | |
947 | ||
948 | if (unlikely(irsp->ulpStatus)) { | |
949 | /* Rsp ring <ringno> error: IOCB */ | |
950 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
951 | "%d:0326 Rsp Ring %d error: IOCB Data: " | |
952 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", | |
953 | phba->brd_no, pring->ringno, | |
954 | irsp->un.ulpWord[0], | |
955 | irsp->un.ulpWord[1], | |
956 | irsp->un.ulpWord[2], | |
957 | irsp->un.ulpWord[3], | |
958 | irsp->un.ulpWord[4], | |
959 | irsp->un.ulpWord[5], | |
960 | *(((uint32_t *) irsp) + 6), | |
961 | *(((uint32_t *) irsp) + 7)); | |
962 | } | |
963 | ||
964 | switch (type) { | |
965 | case LPFC_ABORT_IOCB: | |
966 | case LPFC_SOL_IOCB: | |
967 | /* | |
968 | * Idle exchange closed via ABTS from port. No iocb | |
969 | * resources need to be recovered. | |
970 | */ | |
971 | if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { | |
972 | printk(KERN_INFO "%s: IOCB cmd 0x%x processed." | |
973 | " Skipping completion\n", __FUNCTION__, | |
974 | irsp->ulpCommand); | |
975 | break; | |
976 | } | |
977 | ||
978 | cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, | |
979 | &rspiocbq); | |
980 | if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { | |
981 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, | |
982 | &rspiocbq); | |
983 | } | |
984 | break; | |
985 | default: | |
986 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
987 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
988 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
989 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
990 | MAX_MSG_DATA); | |
991 | dev_warn(&((phba->pcidev)->dev), "lpfc%d: %s", | |
992 | phba->brd_no, adaptermsg); | |
993 | } else { | |
994 | /* Unknown IOCB command */ | |
995 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
996 | "%d:0321 Unknown IOCB command " | |
997 | "Data: x%x, x%x x%x x%x x%x\n", | |
998 | phba->brd_no, type, | |
999 | irsp->ulpCommand, | |
1000 | irsp->ulpStatus, | |
1001 | irsp->ulpIoTag, | |
1002 | irsp->ulpContext); | |
1003 | } | |
1004 | break; | |
1005 | } | |
1006 | ||
1007 | /* | |
1008 | * The response IOCB has been processed. Update the ring | |
1009 | * pointer in SLIM. If the port response put pointer has not | |
1010 | * been updated, sync the pgp->rspPutInx and fetch the new port | |
1011 | * response put pointer. | |
1012 | */ | |
1013 | to_slim = phba->MBslimaddr + | |
1014 | (SLIMOFF + (pring->ringno * 2) + 1) * 4; | |
1015 | writeb(pring->rspidx, to_slim); | |
1016 | ||
1017 | if (pring->rspidx == portRspPut) | |
1018 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1019 | } | |
1020 | ||
1021 | ha_copy = readl(phba->HAregaddr); | |
1022 | ha_copy >>= (LPFC_FCP_RING * 4); | |
1023 | ||
1024 | if ((rsp_cmpl > 0) && (ha_copy & HA_R0RE_REQ)) { | |
1025 | pring->stats.iocb_rsp_full++; | |
1026 | status = ((CA_R0ATT | CA_R0RE_RSP) << (LPFC_FCP_RING * 4)); | |
1027 | writel(status, phba->CAregaddr); | |
1028 | readl(phba->CAregaddr); | |
1029 | } | |
1030 | if ((ha_copy & HA_R0CE_RSP) && | |
1031 | (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
1032 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
1033 | pring->stats.iocb_cmd_empty++; | |
1034 | ||
1035 | /* Force update of the local copy of cmdGetInx */ | |
1036 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
1037 | lpfc_sli_resume_iocb(phba, pring); | |
1038 | ||
1039 | if ((pring->lpfc_sli_cmd_available)) | |
1040 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
1041 | ||
1042 | } | |
1043 | ||
1044 | return; | |
1045 | } | |
1046 | ||
dea3101e | 1047 | /* |
1048 | * This routine presumes LPFC_FCP_RING handling and doesn't bother | |
1049 | * to check it explicitly. | |
1050 | */ | |
1051 | static int | |
1052 | lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba, | |
1053 | struct lpfc_sli_ring * pring, uint32_t mask) | |
1054 | { | |
4cc2da1d | 1055 | struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno]; |
dea3101e | 1056 | IOCB_t *irsp = NULL; |
87f6eaff | 1057 | IOCB_t *entry = NULL; |
dea3101e | 1058 | struct lpfc_iocbq *cmdiocbq = NULL; |
1059 | struct lpfc_iocbq rspiocbq; | |
dea3101e | 1060 | uint32_t status; |
1061 | uint32_t portRspPut, portRspMax; | |
1062 | int rc = 1; | |
1063 | lpfc_iocb_type type; | |
1064 | unsigned long iflag; | |
1065 | uint32_t rsp_cmpl = 0; | |
1066 | void __iomem *to_slim; | |
1067 | ||
1068 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
1069 | pring->stats.iocb_event++; | |
1070 | ||
dea3101e | 1071 | /* |
1072 | * The next available response entry should never exceed the maximum | |
1073 | * entries. If it does, treat it as an adapter hardware error. | |
1074 | */ | |
1075 | portRspMax = pring->numRiocb; | |
1076 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1077 | if (unlikely(portRspPut >= portRspMax)) { | |
875fbdfe | 1078 | lpfc_sli_rsp_pointers_error(phba, pring); |
dea3101e | 1079 | spin_unlock_irqrestore(phba->host->host_lock, iflag); |
1080 | return 1; | |
1081 | } | |
1082 | ||
1083 | rmb(); | |
1084 | while (pring->rspidx != portRspPut) { | |
87f6eaff JSEC |
1085 | /* |
1086 | * Fetch an entry off the ring and copy it into a local data | |
1087 | * structure. The copy involves a byte-swap since the | |
1088 | * network byte order and pci byte orders are different. | |
1089 | */ | |
4a0dfcde | 1090 | entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx); |
875fbdfe JSEC |
1091 | |
1092 | if (++pring->rspidx >= portRspMax) | |
1093 | pring->rspidx = 0; | |
1094 | ||
87f6eaff JSEC |
1095 | lpfc_sli_pcimem_bcopy((uint32_t *) entry, |
1096 | (uint32_t *) &rspiocbq.iocb, | |
1097 | sizeof (IOCB_t)); | |
1098 | irsp = &rspiocbq.iocb; | |
1099 | ||
dea3101e | 1100 | type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); |
1101 | pring->stats.iocb_rsp++; | |
1102 | rsp_cmpl++; | |
1103 | ||
1104 | if (unlikely(irsp->ulpStatus)) { | |
1105 | /* Rsp ring <ringno> error: IOCB */ | |
1106 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
1107 | "%d:0326 Rsp Ring %d error: IOCB Data: " | |
1108 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", | |
1109 | phba->brd_no, pring->ringno, | |
1110 | irsp->un.ulpWord[0], irsp->un.ulpWord[1], | |
1111 | irsp->un.ulpWord[2], irsp->un.ulpWord[3], | |
1112 | irsp->un.ulpWord[4], irsp->un.ulpWord[5], | |
1113 | *(((uint32_t *) irsp) + 6), | |
1114 | *(((uint32_t *) irsp) + 7)); | |
1115 | } | |
1116 | ||
1117 | switch (type) { | |
1118 | case LPFC_ABORT_IOCB: | |
1119 | case LPFC_SOL_IOCB: | |
1120 | /* | |
1121 | * Idle exchange closed via ABTS from port. No iocb | |
1122 | * resources need to be recovered. | |
1123 | */ | |
1124 | if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { | |
1125 | printk(KERN_INFO "%s: IOCB cmd 0x%x processed. " | |
1126 | "Skipping completion\n", __FUNCTION__, | |
1127 | irsp->ulpCommand); | |
1128 | break; | |
1129 | } | |
1130 | ||
604a3e30 JB |
1131 | cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, |
1132 | &rspiocbq); | |
dea3101e | 1133 | if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { |
b808608b JW |
1134 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { |
1135 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, | |
1136 | &rspiocbq); | |
1137 | } else { | |
1138 | spin_unlock_irqrestore( | |
1139 | phba->host->host_lock, iflag); | |
1140 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, | |
1141 | &rspiocbq); | |
1142 | spin_lock_irqsave(phba->host->host_lock, | |
1143 | iflag); | |
1144 | } | |
dea3101e | 1145 | } |
1146 | break; | |
1147 | default: | |
1148 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
1149 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
1150 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
1151 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
1152 | MAX_MSG_DATA); | |
1153 | dev_warn(&((phba->pcidev)->dev), "lpfc%d: %s", | |
1154 | phba->brd_no, adaptermsg); | |
1155 | } else { | |
1156 | /* Unknown IOCB command */ | |
1157 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
1158 | "%d:0321 Unknown IOCB command " | |
1159 | "Data: x%x, x%x x%x x%x x%x\n", | |
1160 | phba->brd_no, type, irsp->ulpCommand, | |
1161 | irsp->ulpStatus, irsp->ulpIoTag, | |
1162 | irsp->ulpContext); | |
1163 | } | |
1164 | break; | |
1165 | } | |
1166 | ||
1167 | /* | |
1168 | * The response IOCB has been processed. Update the ring | |
1169 | * pointer in SLIM. If the port response put pointer has not | |
1170 | * been updated, sync the pgp->rspPutInx and fetch the new port | |
1171 | * response put pointer. | |
1172 | */ | |
dea3101e | 1173 | to_slim = phba->MBslimaddr + |
1174 | (SLIMOFF + (pring->ringno * 2) + 1) * 4; | |
f91b392c | 1175 | writel(pring->rspidx, to_slim); |
dea3101e | 1176 | |
1177 | if (pring->rspidx == portRspPut) | |
1178 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1179 | } | |
1180 | ||
1181 | if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) { | |
1182 | pring->stats.iocb_rsp_full++; | |
1183 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
1184 | writel(status, phba->CAregaddr); | |
1185 | readl(phba->CAregaddr); | |
1186 | } | |
1187 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
1188 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
1189 | pring->stats.iocb_cmd_empty++; | |
1190 | ||
1191 | /* Force update of the local copy of cmdGetInx */ | |
1192 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
1193 | lpfc_sli_resume_iocb(phba, pring); | |
1194 | ||
1195 | if ((pring->lpfc_sli_cmd_available)) | |
1196 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
1197 | ||
1198 | } | |
1199 | ||
1200 | spin_unlock_irqrestore(phba->host->host_lock, iflag); | |
1201 | return rc; | |
1202 | } | |
1203 | ||
1204 | ||
1205 | int | |
1206 | lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba, | |
1207 | struct lpfc_sli_ring * pring, uint32_t mask) | |
1208 | { | |
1209 | IOCB_t *entry; | |
1210 | IOCB_t *irsp = NULL; | |
1211 | struct lpfc_iocbq *rspiocbp = NULL; | |
1212 | struct lpfc_iocbq *next_iocb; | |
1213 | struct lpfc_iocbq *cmdiocbp; | |
1214 | struct lpfc_iocbq *saveq; | |
4cc2da1d | 1215 | struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno]; |
dea3101e | 1216 | uint8_t iocb_cmd_type; |
1217 | lpfc_iocb_type type; | |
1218 | uint32_t status, free_saveq; | |
1219 | uint32_t portRspPut, portRspMax; | |
1220 | int rc = 1; | |
1221 | unsigned long iflag; | |
1222 | void __iomem *to_slim; | |
1223 | ||
1224 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
1225 | pring->stats.iocb_event++; | |
1226 | ||
dea3101e | 1227 | /* |
1228 | * The next available response entry should never exceed the maximum | |
1229 | * entries. If it does, treat it as an adapter hardware error. | |
1230 | */ | |
1231 | portRspMax = pring->numRiocb; | |
1232 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1233 | if (portRspPut >= portRspMax) { | |
1234 | /* | |
1235 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger then | |
1236 | * rsp ring <portRspMax> | |
1237 | */ | |
1238 | lpfc_printf_log(phba, | |
1239 | KERN_ERR, | |
1240 | LOG_SLI, | |
1241 | "%d:0312 Ring %d handler: portRspPut %d " | |
1242 | "is bigger then rsp ring %d\n", | |
1243 | phba->brd_no, | |
1244 | pring->ringno, portRspPut, portRspMax); | |
1245 | ||
1246 | phba->hba_state = LPFC_HBA_ERROR; | |
1247 | spin_unlock_irqrestore(phba->host->host_lock, iflag); | |
1248 | ||
1249 | phba->work_hs = HS_FFER3; | |
1250 | lpfc_handle_eratt(phba); | |
1251 | ||
1252 | return 1; | |
1253 | } | |
1254 | ||
1255 | rmb(); | |
dea3101e | 1256 | while (pring->rspidx != portRspPut) { |
1257 | /* | |
1258 | * Build a completion list and call the appropriate handler. | |
1259 | * The process is to get the next available response iocb, get | |
1260 | * a free iocb from the list, copy the response data into the | |
1261 | * free iocb, insert to the continuation list, and update the | |
1262 | * next response index to slim. This process makes response | |
1263 | * iocb's in the ring available to DMA as fast as possible but | |
1264 | * pays a penalty for a copy operation. Since the iocb is | |
1265 | * only 32 bytes, this penalty is considered small relative to | |
1266 | * the PCI reads for register values and a slim write. When | |
1267 | * the ulpLe field is set, the entire Command has been | |
1268 | * received. | |
1269 | */ | |
1270 | entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx); | |
0bd4ca25 | 1271 | rspiocbp = lpfc_sli_get_iocbq(phba); |
dea3101e | 1272 | if (rspiocbp == NULL) { |
1273 | printk(KERN_ERR "%s: out of buffers! Failing " | |
1274 | "completion.\n", __FUNCTION__); | |
1275 | break; | |
1276 | } | |
1277 | ||
1278 | lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb, sizeof (IOCB_t)); | |
1279 | irsp = &rspiocbp->iocb; | |
1280 | ||
1281 | if (++pring->rspidx >= portRspMax) | |
1282 | pring->rspidx = 0; | |
1283 | ||
1284 | to_slim = phba->MBslimaddr + (SLIMOFF + (pring->ringno * 2) | |
1285 | + 1) * 4; | |
f91b392c | 1286 | writel(pring->rspidx, to_slim); |
dea3101e | 1287 | |
1288 | if (list_empty(&(pring->iocb_continueq))) { | |
1289 | list_add(&rspiocbp->list, &(pring->iocb_continueq)); | |
1290 | } else { | |
1291 | list_add_tail(&rspiocbp->list, | |
1292 | &(pring->iocb_continueq)); | |
1293 | } | |
1294 | ||
1295 | pring->iocb_continueq_cnt++; | |
1296 | if (irsp->ulpLe) { | |
1297 | /* | |
1298 | * By default, the driver expects to free all resources | |
1299 | * associated with this iocb completion. | |
1300 | */ | |
1301 | free_saveq = 1; | |
1302 | saveq = list_get_first(&pring->iocb_continueq, | |
1303 | struct lpfc_iocbq, list); | |
1304 | irsp = &(saveq->iocb); | |
1305 | list_del_init(&pring->iocb_continueq); | |
1306 | pring->iocb_continueq_cnt = 0; | |
1307 | ||
1308 | pring->stats.iocb_rsp++; | |
1309 | ||
1310 | if (irsp->ulpStatus) { | |
1311 | /* Rsp ring <ringno> error: IOCB */ | |
1312 | lpfc_printf_log(phba, | |
1313 | KERN_WARNING, | |
1314 | LOG_SLI, | |
1315 | "%d:0328 Rsp Ring %d error: IOCB Data: " | |
1316 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", | |
1317 | phba->brd_no, | |
1318 | pring->ringno, | |
1319 | irsp->un.ulpWord[0], | |
1320 | irsp->un.ulpWord[1], | |
1321 | irsp->un.ulpWord[2], | |
1322 | irsp->un.ulpWord[3], | |
1323 | irsp->un.ulpWord[4], | |
1324 | irsp->un.ulpWord[5], | |
1325 | *(((uint32_t *) irsp) + 6), | |
1326 | *(((uint32_t *) irsp) + 7)); | |
1327 | } | |
1328 | ||
1329 | /* | |
1330 | * Fetch the IOCB command type and call the correct | |
1331 | * completion routine. Solicited and Unsolicited | |
1332 | * IOCBs on the ELS ring get freed back to the | |
1333 | * lpfc_iocb_list by the discovery kernel thread. | |
1334 | */ | |
1335 | iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK; | |
1336 | type = lpfc_sli_iocb_cmd_type(iocb_cmd_type); | |
1337 | if (type == LPFC_SOL_IOCB) { | |
1338 | spin_unlock_irqrestore(phba->host->host_lock, | |
1339 | iflag); | |
1340 | rc = lpfc_sli_process_sol_iocb(phba, pring, | |
1341 | saveq); | |
1342 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
1343 | } else if (type == LPFC_UNSOL_IOCB) { | |
1344 | spin_unlock_irqrestore(phba->host->host_lock, | |
1345 | iflag); | |
1346 | rc = lpfc_sli_process_unsol_iocb(phba, pring, | |
1347 | saveq); | |
1348 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
1349 | } else if (type == LPFC_ABORT_IOCB) { | |
1350 | if ((irsp->ulpCommand != CMD_XRI_ABORTED_CX) && | |
1351 | ((cmdiocbp = | |
604a3e30 JB |
1352 | lpfc_sli_iocbq_lookup(phba, pring, |
1353 | saveq)))) { | |
dea3101e | 1354 | /* Call the specified completion |
1355 | routine */ | |
1356 | if (cmdiocbp->iocb_cmpl) { | |
1357 | spin_unlock_irqrestore( | |
1358 | phba->host->host_lock, | |
1359 | iflag); | |
1360 | (cmdiocbp->iocb_cmpl) (phba, | |
1361 | cmdiocbp, saveq); | |
1362 | spin_lock_irqsave( | |
1363 | phba->host->host_lock, | |
1364 | iflag); | |
604a3e30 JB |
1365 | } else |
1366 | lpfc_sli_release_iocbq(phba, | |
1367 | cmdiocbp); | |
dea3101e | 1368 | } |
1369 | } else if (type == LPFC_UNKNOWN_IOCB) { | |
1370 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
1371 | ||
1372 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
1373 | ||
1374 | memset(adaptermsg, 0, | |
1375 | LPFC_MAX_ADPTMSG); | |
1376 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
1377 | MAX_MSG_DATA); | |
1378 | dev_warn(&((phba->pcidev)->dev), | |
1379 | "lpfc%d: %s", | |
1380 | phba->brd_no, adaptermsg); | |
1381 | } else { | |
1382 | /* Unknown IOCB command */ | |
1383 | lpfc_printf_log(phba, | |
1384 | KERN_ERR, | |
1385 | LOG_SLI, | |
1386 | "%d:0321 Unknown IOCB command " | |
1387 | "Data: x%x x%x x%x x%x\n", | |
1388 | phba->brd_no, | |
1389 | irsp->ulpCommand, | |
1390 | irsp->ulpStatus, | |
1391 | irsp->ulpIoTag, | |
1392 | irsp->ulpContext); | |
1393 | } | |
1394 | } | |
1395 | ||
1396 | if (free_saveq) { | |
1397 | if (!list_empty(&saveq->list)) { | |
1398 | list_for_each_entry_safe(rspiocbp, | |
1399 | next_iocb, | |
1400 | &saveq->list, | |
1401 | list) { | |
604a3e30 JB |
1402 | lpfc_sli_release_iocbq(phba, |
1403 | rspiocbp); | |
dea3101e | 1404 | } |
1405 | } | |
1406 | ||
604a3e30 | 1407 | lpfc_sli_release_iocbq(phba, saveq); |
dea3101e | 1408 | } |
1409 | } | |
1410 | ||
1411 | /* | |
1412 | * If the port response put pointer has not been updated, sync | |
1413 | * the pgp->rspPutInx in the MAILBOX_tand fetch the new port | |
1414 | * response put pointer. | |
1415 | */ | |
1416 | if (pring->rspidx == portRspPut) { | |
1417 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1418 | } | |
1419 | } /* while (pring->rspidx != portRspPut) */ | |
1420 | ||
1421 | if ((rspiocbp != 0) && (mask & HA_R0RE_REQ)) { | |
1422 | /* At least one response entry has been freed */ | |
1423 | pring->stats.iocb_rsp_full++; | |
1424 | /* SET RxRE_RSP in Chip Att register */ | |
1425 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
1426 | writel(status, phba->CAregaddr); | |
1427 | readl(phba->CAregaddr); /* flush */ | |
1428 | } | |
1429 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
1430 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
1431 | pring->stats.iocb_cmd_empty++; | |
1432 | ||
1433 | /* Force update of the local copy of cmdGetInx */ | |
1434 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
1435 | lpfc_sli_resume_iocb(phba, pring); | |
1436 | ||
1437 | if ((pring->lpfc_sli_cmd_available)) | |
1438 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
1439 | ||
1440 | } | |
1441 | ||
1442 | spin_unlock_irqrestore(phba->host->host_lock, iflag); | |
1443 | return rc; | |
1444 | } | |
1445 | ||
1446 | int | |
1447 | lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
1448 | { | |
1449 | struct lpfc_iocbq *iocb, *next_iocb; | |
1450 | IOCB_t *icmd = NULL, *cmd = NULL; | |
1451 | int errcnt; | |
dea3101e | 1452 | |
1453 | errcnt = 0; | |
1454 | ||
1455 | /* Error everything on txq and txcmplq | |
1456 | * First do the txq. | |
1457 | */ | |
1458 | spin_lock_irq(phba->host->host_lock); | |
1459 | list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { | |
1460 | list_del_init(&iocb->list); | |
1461 | if (iocb->iocb_cmpl) { | |
1462 | icmd = &iocb->iocb; | |
1463 | icmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
1464 | icmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
1465 | spin_unlock_irq(phba->host->host_lock); | |
1466 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
1467 | spin_lock_irq(phba->host->host_lock); | |
604a3e30 JB |
1468 | } else |
1469 | lpfc_sli_release_iocbq(phba, iocb); | |
dea3101e | 1470 | } |
1471 | pring->txq_cnt = 0; | |
1472 | INIT_LIST_HEAD(&(pring->txq)); | |
1473 | ||
1474 | /* Next issue ABTS for everything on the txcmplq */ | |
1475 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { | |
1476 | cmd = &iocb->iocb; | |
1477 | ||
1478 | /* | |
604a3e30 | 1479 | * Imediate abort of IOCB, deque and call compl |
dea3101e | 1480 | */ |
dea3101e | 1481 | |
1482 | list_del_init(&iocb->list); | |
1483 | pring->txcmplq_cnt--; | |
1484 | ||
1485 | if (iocb->iocb_cmpl) { | |
1486 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
1487 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
1488 | spin_unlock_irq(phba->host->host_lock); | |
1489 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
1490 | spin_lock_irq(phba->host->host_lock); | |
604a3e30 JB |
1491 | } else |
1492 | lpfc_sli_release_iocbq(phba, iocb); | |
dea3101e | 1493 | } |
1494 | ||
1495 | INIT_LIST_HEAD(&pring->txcmplq); | |
1496 | pring->txcmplq_cnt = 0; | |
1497 | spin_unlock_irq(phba->host->host_lock); | |
1498 | ||
1499 | return errcnt; | |
1500 | } | |
1501 | ||
41415862 JW |
1502 | int |
1503 | lpfc_sli_brdready(struct lpfc_hba * phba, uint32_t mask) | |
dea3101e | 1504 | { |
41415862 JW |
1505 | uint32_t status; |
1506 | int i = 0; | |
1507 | int retval = 0; | |
dea3101e | 1508 | |
41415862 JW |
1509 | /* Read the HBA Host Status Register */ |
1510 | status = readl(phba->HSregaddr); | |
dea3101e | 1511 | |
41415862 JW |
1512 | /* |
1513 | * Check status register every 100ms for 5 retries, then every | |
1514 | * 500ms for 5, then every 2.5 sec for 5, then reset board and | |
1515 | * every 2.5 sec for 4. | |
1516 | * Break our of the loop if errors occurred during init. | |
1517 | */ | |
1518 | while (((status & mask) != mask) && | |
1519 | !(status & HS_FFERM) && | |
1520 | i++ < 20) { | |
dea3101e | 1521 | |
41415862 JW |
1522 | if (i <= 5) |
1523 | msleep(10); | |
1524 | else if (i <= 10) | |
1525 | msleep(500); | |
1526 | else | |
1527 | msleep(2500); | |
dea3101e | 1528 | |
41415862 JW |
1529 | if (i == 15) { |
1530 | phba->hba_state = LPFC_STATE_UNKNOWN; /* Do post */ | |
1531 | lpfc_sli_brdrestart(phba); | |
1532 | } | |
1533 | /* Read the HBA Host Status Register */ | |
1534 | status = readl(phba->HSregaddr); | |
1535 | } | |
dea3101e | 1536 | |
41415862 JW |
1537 | /* Check to see if any errors occurred during init */ |
1538 | if ((status & HS_FFERM) || (i >= 20)) { | |
1539 | phba->hba_state = LPFC_HBA_ERROR; | |
1540 | retval = 1; | |
dea3101e | 1541 | } |
dea3101e | 1542 | |
41415862 JW |
1543 | return retval; |
1544 | } | |
dea3101e | 1545 | |
9290831f JS |
1546 | #define BARRIER_TEST_PATTERN (0xdeadbeef) |
1547 | ||
1548 | void lpfc_reset_barrier(struct lpfc_hba * phba) | |
1549 | { | |
1550 | uint32_t * resp_buf; | |
1551 | uint32_t * mbox_buf; | |
1552 | volatile uint32_t mbox; | |
1553 | uint32_t hc_copy; | |
1554 | int i; | |
1555 | uint8_t hdrtype; | |
1556 | ||
1557 | pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype); | |
1558 | if (hdrtype != 0x80 || | |
1559 | (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID && | |
1560 | FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID)) | |
1561 | return; | |
1562 | ||
1563 | /* | |
1564 | * Tell the other part of the chip to suspend temporarily all | |
1565 | * its DMA activity. | |
1566 | */ | |
1567 | resp_buf = (uint32_t *)phba->MBslimaddr; | |
1568 | ||
1569 | /* Disable the error attention */ | |
1570 | hc_copy = readl(phba->HCregaddr); | |
1571 | writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr); | |
1572 | readl(phba->HCregaddr); /* flush */ | |
1573 | ||
1574 | if (readl(phba->HAregaddr) & HA_ERATT) { | |
1575 | /* Clear Chip error bit */ | |
1576 | writel(HA_ERATT, phba->HAregaddr); | |
1577 | phba->stopped = 1; | |
1578 | } | |
1579 | ||
1580 | mbox = 0; | |
1581 | ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD; | |
1582 | ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP; | |
1583 | ||
1584 | writel(BARRIER_TEST_PATTERN, (resp_buf + 1)); | |
1585 | mbox_buf = (uint32_t *)phba->MBslimaddr; | |
1586 | writel(mbox, mbox_buf); | |
1587 | ||
1588 | for (i = 0; | |
1589 | readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++) | |
1590 | mdelay(1); | |
1591 | ||
1592 | if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) { | |
1593 | if (phba->sli.sli_flag & LPFC_SLI2_ACTIVE || | |
1594 | phba->stopped) | |
1595 | goto restore_hc; | |
1596 | else | |
1597 | goto clear_errat; | |
1598 | } | |
1599 | ||
1600 | ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST; | |
1601 | for (i = 0; readl(resp_buf) != mbox && i < 500; i++) | |
1602 | mdelay(1); | |
1603 | ||
1604 | clear_errat: | |
1605 | ||
1606 | while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500) | |
1607 | mdelay(1); | |
1608 | ||
1609 | if (readl(phba->HAregaddr) & HA_ERATT) { | |
1610 | writel(HA_ERATT, phba->HAregaddr); | |
1611 | phba->stopped = 1; | |
1612 | } | |
1613 | ||
1614 | restore_hc: | |
1615 | writel(hc_copy, phba->HCregaddr); | |
1616 | readl(phba->HCregaddr); /* flush */ | |
1617 | } | |
1618 | ||
41415862 JW |
1619 | int |
1620 | lpfc_sli_brdkill(struct lpfc_hba * phba) | |
1621 | { | |
1622 | struct lpfc_sli *psli; | |
1623 | LPFC_MBOXQ_t *pmb; | |
1624 | uint32_t status; | |
1625 | uint32_t ha_copy; | |
1626 | int retval; | |
1627 | int i = 0; | |
dea3101e | 1628 | |
41415862 | 1629 | psli = &phba->sli; |
dea3101e | 1630 | |
41415862 JW |
1631 | /* Kill HBA */ |
1632 | lpfc_printf_log(phba, | |
1633 | KERN_INFO, | |
1634 | LOG_SLI, | |
1635 | "%d:0329 Kill HBA Data: x%x x%x\n", | |
1636 | phba->brd_no, | |
1637 | phba->hba_state, | |
1638 | psli->sli_flag); | |
1639 | ||
1640 | if ((pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, | |
9290831f | 1641 | GFP_KERNEL)) == 0) |
41415862 | 1642 | return 1; |
41415862 JW |
1643 | |
1644 | /* Disable the error attention */ | |
1645 | spin_lock_irq(phba->host->host_lock); | |
1646 | status = readl(phba->HCregaddr); | |
1647 | status &= ~HC_ERINT_ENA; | |
1648 | writel(status, phba->HCregaddr); | |
1649 | readl(phba->HCregaddr); /* flush */ | |
1650 | spin_unlock_irq(phba->host->host_lock); | |
1651 | ||
1652 | lpfc_kill_board(phba, pmb); | |
1653 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
1654 | retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
1655 | ||
1656 | if (retval != MBX_SUCCESS) { | |
1657 | if (retval != MBX_BUSY) | |
1658 | mempool_free(pmb, phba->mbox_mem_pool); | |
1659 | return 1; | |
1660 | } | |
1661 | ||
9290831f JS |
1662 | psli->sli_flag &= ~LPFC_SLI2_ACTIVE; |
1663 | ||
41415862 JW |
1664 | mempool_free(pmb, phba->mbox_mem_pool); |
1665 | ||
1666 | /* There is no completion for a KILL_BOARD mbox cmd. Check for an error | |
1667 | * attention every 100ms for 3 seconds. If we don't get ERATT after | |
1668 | * 3 seconds we still set HBA_ERROR state because the status of the | |
1669 | * board is now undefined. | |
1670 | */ | |
1671 | ha_copy = readl(phba->HAregaddr); | |
1672 | ||
1673 | while ((i++ < 30) && !(ha_copy & HA_ERATT)) { | |
1674 | mdelay(100); | |
1675 | ha_copy = readl(phba->HAregaddr); | |
1676 | } | |
1677 | ||
1678 | del_timer_sync(&psli->mbox_tmo); | |
9290831f JS |
1679 | if (ha_copy & HA_ERATT) { |
1680 | writel(HA_ERATT, phba->HAregaddr); | |
1681 | phba->stopped = 1; | |
1682 | } | |
41415862 JW |
1683 | spin_lock_irq(phba->host->host_lock); |
1684 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
1685 | spin_unlock_irq(phba->host->host_lock); | |
1686 | ||
1687 | psli->mbox_active = NULL; | |
1688 | lpfc_hba_down_post(phba); | |
1689 | phba->hba_state = LPFC_HBA_ERROR; | |
1690 | ||
1691 | return (ha_copy & HA_ERATT ? 0 : 1); | |
dea3101e | 1692 | } |
1693 | ||
41415862 JW |
1694 | int |
1695 | lpfc_sli_brdreset(struct lpfc_hba * phba) | |
dea3101e | 1696 | { |
41415862 | 1697 | struct lpfc_sli *psli; |
dea3101e | 1698 | struct lpfc_sli_ring *pring; |
41415862 | 1699 | uint16_t cfg_value; |
dea3101e | 1700 | int i; |
dea3101e | 1701 | |
41415862 | 1702 | psli = &phba->sli; |
dea3101e | 1703 | |
41415862 JW |
1704 | /* Reset HBA */ |
1705 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
1706 | "%d:0325 Reset HBA Data: x%x x%x\n", phba->brd_no, | |
1707 | phba->hba_state, psli->sli_flag); | |
dea3101e | 1708 | |
1709 | /* perform board reset */ | |
1710 | phba->fc_eventTag = 0; | |
1711 | phba->fc_myDID = 0; | |
41415862 | 1712 | phba->fc_prevDID = 0; |
dea3101e | 1713 | |
41415862 JW |
1714 | psli->sli_flag = 0; |
1715 | ||
1716 | /* Turn off parity checking and serr during the physical reset */ | |
1717 | pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value); | |
1718 | pci_write_config_word(phba->pcidev, PCI_COMMAND, | |
1719 | (cfg_value & | |
1720 | ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR))); | |
1721 | ||
9290831f | 1722 | psli->sli_flag &= ~LPFC_SLI2_ACTIVE; |
41415862 JW |
1723 | /* Now toggle INITFF bit in the Host Control Register */ |
1724 | writel(HC_INITFF, phba->HCregaddr); | |
1725 | mdelay(1); | |
1726 | readl(phba->HCregaddr); /* flush */ | |
1727 | writel(0, phba->HCregaddr); | |
1728 | readl(phba->HCregaddr); /* flush */ | |
1729 | ||
1730 | /* Restore PCI cmd register */ | |
1731 | pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value); | |
dea3101e | 1732 | |
1733 | /* Initialize relevant SLI info */ | |
41415862 JW |
1734 | for (i = 0; i < psli->num_rings; i++) { |
1735 | pring = &psli->ring[i]; | |
dea3101e | 1736 | pring->flag = 0; |
1737 | pring->rspidx = 0; | |
1738 | pring->next_cmdidx = 0; | |
1739 | pring->local_getidx = 0; | |
1740 | pring->cmdidx = 0; | |
1741 | pring->missbufcnt = 0; | |
1742 | } | |
dea3101e | 1743 | |
41415862 JW |
1744 | phba->hba_state = LPFC_WARM_START; |
1745 | return 0; | |
1746 | } | |
1747 | ||
1748 | int | |
1749 | lpfc_sli_brdrestart(struct lpfc_hba * phba) | |
1750 | { | |
1751 | MAILBOX_t *mb; | |
1752 | struct lpfc_sli *psli; | |
1753 | uint16_t skip_post; | |
1754 | volatile uint32_t word0; | |
1755 | void __iomem *to_slim; | |
1756 | ||
1757 | spin_lock_irq(phba->host->host_lock); | |
1758 | ||
1759 | psli = &phba->sli; | |
1760 | ||
1761 | /* Restart HBA */ | |
1762 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
1763 | "%d:0328 Restart HBA Data: x%x x%x\n", phba->brd_no, | |
1764 | phba->hba_state, psli->sli_flag); | |
1765 | ||
1766 | word0 = 0; | |
1767 | mb = (MAILBOX_t *) &word0; | |
1768 | mb->mbxCommand = MBX_RESTART; | |
1769 | mb->mbxHc = 1; | |
1770 | ||
9290831f JS |
1771 | lpfc_reset_barrier(phba); |
1772 | ||
41415862 JW |
1773 | to_slim = phba->MBslimaddr; |
1774 | writel(*(uint32_t *) mb, to_slim); | |
1775 | readl(to_slim); /* flush */ | |
1776 | ||
1777 | /* Only skip post after fc_ffinit is completed */ | |
1778 | if (phba->hba_state) { | |
1779 | skip_post = 1; | |
1780 | word0 = 1; /* This is really setting up word1 */ | |
dea3101e | 1781 | } else { |
41415862 JW |
1782 | skip_post = 0; |
1783 | word0 = 0; /* This is really setting up word1 */ | |
dea3101e | 1784 | } |
41415862 JW |
1785 | to_slim = (uint8_t *) phba->MBslimaddr + sizeof (uint32_t); |
1786 | writel(*(uint32_t *) mb, to_slim); | |
1787 | readl(to_slim); /* flush */ | |
dea3101e | 1788 | |
41415862 | 1789 | lpfc_sli_brdreset(phba); |
9290831f | 1790 | phba->stopped = 0; |
41415862 JW |
1791 | phba->hba_state = LPFC_INIT_START; |
1792 | ||
1793 | spin_unlock_irq(phba->host->host_lock); | |
1794 | ||
1795 | if (skip_post) | |
1796 | mdelay(100); | |
1797 | else | |
1798 | mdelay(2000); | |
1799 | ||
1800 | lpfc_hba_down_post(phba); | |
dea3101e | 1801 | |
1802 | return 0; | |
1803 | } | |
1804 | ||
1805 | static int | |
1806 | lpfc_sli_chipset_init(struct lpfc_hba *phba) | |
1807 | { | |
1808 | uint32_t status, i = 0; | |
1809 | ||
1810 | /* Read the HBA Host Status Register */ | |
1811 | status = readl(phba->HSregaddr); | |
1812 | ||
1813 | /* Check status register to see what current state is */ | |
1814 | i = 0; | |
1815 | while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) { | |
1816 | ||
1817 | /* Check every 100ms for 5 retries, then every 500ms for 5, then | |
1818 | * every 2.5 sec for 5, then reset board and every 2.5 sec for | |
1819 | * 4. | |
1820 | */ | |
1821 | if (i++ >= 20) { | |
1822 | /* Adapter failed to init, timeout, status reg | |
1823 | <status> */ | |
1824 | lpfc_printf_log(phba, | |
1825 | KERN_ERR, | |
1826 | LOG_INIT, | |
1827 | "%d:0436 Adapter failed to init, " | |
1828 | "timeout, status reg x%x\n", | |
1829 | phba->brd_no, | |
1830 | status); | |
1831 | phba->hba_state = LPFC_HBA_ERROR; | |
1832 | return -ETIMEDOUT; | |
1833 | } | |
1834 | ||
1835 | /* Check to see if any errors occurred during init */ | |
1836 | if (status & HS_FFERM) { | |
1837 | /* ERROR: During chipset initialization */ | |
1838 | /* Adapter failed to init, chipset, status reg | |
1839 | <status> */ | |
1840 | lpfc_printf_log(phba, | |
1841 | KERN_ERR, | |
1842 | LOG_INIT, | |
1843 | "%d:0437 Adapter failed to init, " | |
1844 | "chipset, status reg x%x\n", | |
1845 | phba->brd_no, | |
1846 | status); | |
1847 | phba->hba_state = LPFC_HBA_ERROR; | |
1848 | return -EIO; | |
1849 | } | |
1850 | ||
1851 | if (i <= 5) { | |
1852 | msleep(10); | |
1853 | } else if (i <= 10) { | |
1854 | msleep(500); | |
1855 | } else { | |
1856 | msleep(2500); | |
1857 | } | |
1858 | ||
1859 | if (i == 15) { | |
41415862 JW |
1860 | phba->hba_state = LPFC_STATE_UNKNOWN; /* Do post */ |
1861 | lpfc_sli_brdrestart(phba); | |
dea3101e | 1862 | } |
1863 | /* Read the HBA Host Status Register */ | |
1864 | status = readl(phba->HSregaddr); | |
1865 | } | |
1866 | ||
1867 | /* Check to see if any errors occurred during init */ | |
1868 | if (status & HS_FFERM) { | |
1869 | /* ERROR: During chipset initialization */ | |
1870 | /* Adapter failed to init, chipset, status reg <status> */ | |
1871 | lpfc_printf_log(phba, | |
1872 | KERN_ERR, | |
1873 | LOG_INIT, | |
1874 | "%d:0438 Adapter failed to init, chipset, " | |
1875 | "status reg x%x\n", | |
1876 | phba->brd_no, | |
1877 | status); | |
1878 | phba->hba_state = LPFC_HBA_ERROR; | |
1879 | return -EIO; | |
1880 | } | |
1881 | ||
1882 | /* Clear all interrupt enable conditions */ | |
1883 | writel(0, phba->HCregaddr); | |
1884 | readl(phba->HCregaddr); /* flush */ | |
1885 | ||
1886 | /* setup host attn register */ | |
1887 | writel(0xffffffff, phba->HAregaddr); | |
1888 | readl(phba->HAregaddr); /* flush */ | |
1889 | return 0; | |
1890 | } | |
1891 | ||
1892 | int | |
1893 | lpfc_sli_hba_setup(struct lpfc_hba * phba) | |
1894 | { | |
1895 | LPFC_MBOXQ_t *pmb; | |
1896 | uint32_t resetcount = 0, rc = 0, done = 0; | |
1897 | ||
1898 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
1899 | if (!pmb) { | |
1900 | phba->hba_state = LPFC_HBA_ERROR; | |
1901 | return -ENOMEM; | |
1902 | } | |
1903 | ||
1904 | while (resetcount < 2 && !done) { | |
41415862 JW |
1905 | phba->hba_state = LPFC_STATE_UNKNOWN; |
1906 | lpfc_sli_brdrestart(phba); | |
dea3101e | 1907 | msleep(2500); |
1908 | rc = lpfc_sli_chipset_init(phba); | |
1909 | if (rc) | |
1910 | break; | |
1911 | ||
1912 | resetcount++; | |
1913 | ||
1914 | /* Call pre CONFIG_PORT mailbox command initialization. A value of 0 | |
1915 | * means the call was successful. Any other nonzero value is a failure, | |
1916 | * but if ERESTART is returned, the driver may reset the HBA and try | |
1917 | * again. | |
1918 | */ | |
1919 | rc = lpfc_config_port_prep(phba); | |
1920 | if (rc == -ERESTART) { | |
1921 | phba->hba_state = 0; | |
1922 | continue; | |
1923 | } else if (rc) { | |
1924 | break; | |
1925 | } | |
1926 | ||
1927 | phba->hba_state = LPFC_INIT_MBX_CMDS; | |
1928 | lpfc_config_port(phba, pmb); | |
1929 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
1930 | if (rc == MBX_SUCCESS) | |
1931 | done = 1; | |
1932 | else { | |
1933 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1934 | "%d:0442 Adapter failed to init, mbxCmd x%x " | |
1935 | "CONFIG_PORT, mbxStatus x%x Data: x%x\n", | |
1936 | phba->brd_no, pmb->mb.mbxCommand, | |
1937 | pmb->mb.mbxStatus, 0); | |
1938 | phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE; | |
1939 | } | |
1940 | } | |
1941 | if (!done) | |
1942 | goto lpfc_sli_hba_setup_error; | |
1943 | ||
1944 | rc = lpfc_sli_ring_map(phba, pmb); | |
1945 | ||
1946 | if (rc) | |
1947 | goto lpfc_sli_hba_setup_error; | |
1948 | ||
1949 | phba->sli.sli_flag |= LPFC_PROCESS_LA; | |
1950 | ||
1951 | rc = lpfc_config_port_post(phba); | |
1952 | if (rc) | |
1953 | goto lpfc_sli_hba_setup_error; | |
1954 | ||
1955 | goto lpfc_sli_hba_setup_exit; | |
1956 | lpfc_sli_hba_setup_error: | |
1957 | phba->hba_state = LPFC_HBA_ERROR; | |
1958 | lpfc_sli_hba_setup_exit: | |
1959 | mempool_free(pmb, phba->mbox_mem_pool); | |
1960 | return rc; | |
1961 | } | |
1962 | ||
1963 | static void | |
1964 | lpfc_mbox_abort(struct lpfc_hba * phba) | |
1965 | { | |
1966 | LPFC_MBOXQ_t *pmbox; | |
1967 | MAILBOX_t *mb; | |
1968 | ||
1969 | if (phba->sli.mbox_active) { | |
1970 | del_timer_sync(&phba->sli.mbox_tmo); | |
1971 | phba->work_hba_events &= ~WORKER_MBOX_TMO; | |
1972 | pmbox = phba->sli.mbox_active; | |
1973 | mb = &pmbox->mb; | |
1974 | phba->sli.mbox_active = NULL; | |
1975 | if (pmbox->mbox_cmpl) { | |
1976 | mb->mbxStatus = MBX_NOT_FINISHED; | |
1977 | (pmbox->mbox_cmpl) (phba, pmbox); | |
1978 | } | |
1979 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
1980 | } | |
1981 | ||
1982 | /* Abort all the non active mailbox commands. */ | |
1983 | spin_lock_irq(phba->host->host_lock); | |
1984 | pmbox = lpfc_mbox_get(phba); | |
1985 | while (pmbox) { | |
1986 | mb = &pmbox->mb; | |
1987 | if (pmbox->mbox_cmpl) { | |
1988 | mb->mbxStatus = MBX_NOT_FINISHED; | |
1989 | spin_unlock_irq(phba->host->host_lock); | |
1990 | (pmbox->mbox_cmpl) (phba, pmbox); | |
1991 | spin_lock_irq(phba->host->host_lock); | |
1992 | } | |
1993 | pmbox = lpfc_mbox_get(phba); | |
1994 | } | |
1995 | spin_unlock_irq(phba->host->host_lock); | |
1996 | return; | |
1997 | } | |
1998 | ||
1999 | /*! lpfc_mbox_timeout | |
2000 | * | |
2001 | * \pre | |
2002 | * \post | |
2003 | * \param hba Pointer to per struct lpfc_hba structure | |
2004 | * \param l1 Pointer to the driver's mailbox queue. | |
2005 | * \return | |
2006 | * void | |
2007 | * | |
2008 | * \b Description: | |
2009 | * | |
2010 | * This routine handles mailbox timeout events at timer interrupt context. | |
2011 | */ | |
2012 | void | |
2013 | lpfc_mbox_timeout(unsigned long ptr) | |
2014 | { | |
2015 | struct lpfc_hba *phba; | |
2016 | unsigned long iflag; | |
2017 | ||
2018 | phba = (struct lpfc_hba *)ptr; | |
2019 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
2020 | if (!(phba->work_hba_events & WORKER_MBOX_TMO)) { | |
2021 | phba->work_hba_events |= WORKER_MBOX_TMO; | |
2022 | if (phba->work_wait) | |
2023 | wake_up(phba->work_wait); | |
2024 | } | |
2025 | spin_unlock_irqrestore(phba->host->host_lock, iflag); | |
2026 | } | |
2027 | ||
2028 | void | |
2029 | lpfc_mbox_timeout_handler(struct lpfc_hba *phba) | |
2030 | { | |
2031 | LPFC_MBOXQ_t *pmbox; | |
2032 | MAILBOX_t *mb; | |
2033 | ||
2034 | spin_lock_irq(phba->host->host_lock); | |
2035 | if (!(phba->work_hba_events & WORKER_MBOX_TMO)) { | |
2036 | spin_unlock_irq(phba->host->host_lock); | |
2037 | return; | |
2038 | } | |
2039 | ||
db468d10 JSEC |
2040 | phba->work_hba_events &= ~WORKER_MBOX_TMO; |
2041 | ||
dea3101e | 2042 | pmbox = phba->sli.mbox_active; |
2043 | mb = &pmbox->mb; | |
2044 | ||
2045 | /* Mbox cmd <mbxCommand> timeout */ | |
2046 | lpfc_printf_log(phba, | |
2047 | KERN_ERR, | |
2048 | LOG_MBOX | LOG_SLI, | |
2049 | "%d:0310 Mailbox command x%x timeout Data: x%x x%x x%p\n", | |
2050 | phba->brd_no, | |
2051 | mb->mbxCommand, | |
2052 | phba->hba_state, | |
2053 | phba->sli.sli_flag, | |
2054 | phba->sli.mbox_active); | |
2055 | ||
db468d10 JSEC |
2056 | phba->sli.mbox_active = NULL; |
2057 | if (pmbox->mbox_cmpl) { | |
2058 | mb->mbxStatus = MBX_NOT_FINISHED; | |
2059 | spin_unlock_irq(phba->host->host_lock); | |
2060 | (pmbox->mbox_cmpl) (phba, pmbox); | |
2061 | spin_lock_irq(phba->host->host_lock); | |
dea3101e | 2062 | } |
db468d10 | 2063 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
dea3101e | 2064 | |
2065 | spin_unlock_irq(phba->host->host_lock); | |
2066 | lpfc_mbox_abort(phba); | |
2067 | return; | |
2068 | } | |
2069 | ||
2070 | int | |
2071 | lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag) | |
2072 | { | |
dea3101e | 2073 | 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 | ||
2082 | psli = &phba->sli; | |
2083 | ||
2084 | spin_lock_irqsave(phba->host->host_lock, drvr_flag); | |
2085 | ||
2086 | ||
2087 | mb = &pmbox->mb; | |
2088 | status = MBX_SUCCESS; | |
2089 | ||
41415862 JW |
2090 | if (phba->hba_state == LPFC_HBA_ERROR) { |
2091 | spin_unlock_irqrestore(phba->host->host_lock, drvr_flag); | |
2092 | ||
2093 | /* Mbox command <mbxCommand> cannot issue */ | |
2094 | LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag) | |
2095 | return (MBX_NOT_FINISHED); | |
2096 | } | |
2097 | ||
9290831f JS |
2098 | if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT && |
2099 | !(readl(phba->HCregaddr) & HC_MBINT_ENA)) { | |
2100 | spin_unlock_irqrestore(phba->host->host_lock, drvr_flag); | |
2101 | LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag) | |
2102 | return (MBX_NOT_FINISHED); | |
2103 | } | |
2104 | ||
dea3101e | 2105 | if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { |
2106 | /* Polling for a mbox command when another one is already active | |
2107 | * is not allowed in SLI. Also, the driver must have established | |
2108 | * SLI2 mode to queue and process multiple mbox commands. | |
2109 | */ | |
2110 | ||
2111 | if (flag & MBX_POLL) { | |
2112 | spin_unlock_irqrestore(phba->host->host_lock, | |
2113 | drvr_flag); | |
2114 | ||
2115 | /* Mbox command <mbxCommand> cannot issue */ | |
2116 | LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag) | |
2117 | return (MBX_NOT_FINISHED); | |
2118 | } | |
2119 | ||
2120 | if (!(psli->sli_flag & LPFC_SLI2_ACTIVE)) { | |
2121 | spin_unlock_irqrestore(phba->host->host_lock, | |
2122 | drvr_flag); | |
2123 | /* Mbox command <mbxCommand> cannot issue */ | |
2124 | LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag) | |
2125 | return (MBX_NOT_FINISHED); | |
2126 | } | |
2127 | ||
2128 | /* Handle STOP IOCB processing flag. This is only meaningful | |
2129 | * if we are not polling for mbox completion. | |
2130 | */ | |
2131 | if (flag & MBX_STOP_IOCB) { | |
2132 | flag &= ~MBX_STOP_IOCB; | |
2133 | /* Now flag each ring */ | |
2134 | for (i = 0; i < psli->num_rings; i++) { | |
2135 | /* If the ring is active, flag it */ | |
2136 | if (psli->ring[i].cmdringaddr) { | |
2137 | psli->ring[i].flag |= | |
2138 | LPFC_STOP_IOCB_MBX; | |
2139 | } | |
2140 | } | |
2141 | } | |
2142 | ||
2143 | /* Another mailbox command is still being processed, queue this | |
2144 | * command to be processed later. | |
2145 | */ | |
2146 | lpfc_mbox_put(phba, pmbox); | |
2147 | ||
2148 | /* Mbox cmd issue - BUSY */ | |
2149 | lpfc_printf_log(phba, | |
2150 | KERN_INFO, | |
2151 | LOG_MBOX | LOG_SLI, | |
2152 | "%d:0308 Mbox cmd issue - BUSY Data: x%x x%x x%x x%x\n", | |
2153 | phba->brd_no, | |
2154 | mb->mbxCommand, | |
2155 | phba->hba_state, | |
2156 | psli->sli_flag, | |
2157 | flag); | |
2158 | ||
2159 | psli->slistat.mbox_busy++; | |
2160 | spin_unlock_irqrestore(phba->host->host_lock, | |
2161 | drvr_flag); | |
2162 | ||
2163 | return (MBX_BUSY); | |
2164 | } | |
2165 | ||
2166 | /* Handle STOP IOCB processing flag. This is only meaningful | |
2167 | * if we are not polling for mbox completion. | |
2168 | */ | |
2169 | if (flag & MBX_STOP_IOCB) { | |
2170 | flag &= ~MBX_STOP_IOCB; | |
2171 | if (flag == MBX_NOWAIT) { | |
2172 | /* Now flag each ring */ | |
2173 | for (i = 0; i < psli->num_rings; i++) { | |
2174 | /* If the ring is active, flag it */ | |
2175 | if (psli->ring[i].cmdringaddr) { | |
2176 | psli->ring[i].flag |= | |
2177 | LPFC_STOP_IOCB_MBX; | |
2178 | } | |
2179 | } | |
2180 | } | |
2181 | } | |
2182 | ||
2183 | psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; | |
2184 | ||
2185 | /* If we are not polling, we MUST be in SLI2 mode */ | |
2186 | if (flag != MBX_POLL) { | |
41415862 JW |
2187 | if (!(psli->sli_flag & LPFC_SLI2_ACTIVE) && |
2188 | (mb->mbxCommand != MBX_KILL_BOARD)) { | |
dea3101e | 2189 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2190 | spin_unlock_irqrestore(phba->host->host_lock, | |
2191 | drvr_flag); | |
2192 | /* Mbox command <mbxCommand> cannot issue */ | |
2193 | LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag); | |
2194 | return (MBX_NOT_FINISHED); | |
2195 | } | |
2196 | /* timeout active mbox command */ | |
2197 | mod_timer(&psli->mbox_tmo, jiffies + HZ * LPFC_MBOX_TMO); | |
2198 | } | |
2199 | ||
2200 | /* Mailbox cmd <cmd> issue */ | |
2201 | lpfc_printf_log(phba, | |
2202 | KERN_INFO, | |
2203 | LOG_MBOX | LOG_SLI, | |
2204 | "%d:0309 Mailbox cmd x%x issue Data: x%x x%x x%x\n", | |
2205 | phba->brd_no, | |
2206 | mb->mbxCommand, | |
2207 | phba->hba_state, | |
2208 | psli->sli_flag, | |
2209 | flag); | |
2210 | ||
2211 | psli->slistat.mbox_cmd++; | |
2212 | evtctr = psli->slistat.mbox_event; | |
2213 | ||
2214 | /* next set own bit for the adapter and copy over command word */ | |
2215 | mb->mbxOwner = OWN_CHIP; | |
2216 | ||
2217 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
dea3101e | 2218 | /* First copy command data to host SLIM area */ |
4cc2da1d | 2219 | lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx, MAILBOX_CMD_SIZE); |
dea3101e | 2220 | } else { |
9290831f | 2221 | if (mb->mbxCommand == MBX_CONFIG_PORT) { |
dea3101e | 2222 | /* copy command data into host mbox for cmpl */ |
4cc2da1d JSEC |
2223 | lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx, |
2224 | MAILBOX_CMD_SIZE); | |
dea3101e | 2225 | } |
2226 | ||
2227 | /* First copy mbox command data to HBA SLIM, skip past first | |
2228 | word */ | |
2229 | to_slim = phba->MBslimaddr + sizeof (uint32_t); | |
2230 | lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0], | |
2231 | MAILBOX_CMD_SIZE - sizeof (uint32_t)); | |
2232 | ||
2233 | /* Next copy over first word, with mbxOwner set */ | |
2234 | ldata = *((volatile uint32_t *)mb); | |
2235 | to_slim = phba->MBslimaddr; | |
2236 | writel(ldata, to_slim); | |
2237 | readl(to_slim); /* flush */ | |
2238 | ||
2239 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
2240 | /* switch over to host mailbox */ | |
2241 | psli->sli_flag |= LPFC_SLI2_ACTIVE; | |
2242 | } | |
2243 | } | |
2244 | ||
2245 | wmb(); | |
2246 | /* interrupt board to doit right away */ | |
2247 | writel(CA_MBATT, phba->CAregaddr); | |
2248 | readl(phba->CAregaddr); /* flush */ | |
2249 | ||
2250 | switch (flag) { | |
2251 | case MBX_NOWAIT: | |
2252 | /* Don't wait for it to finish, just return */ | |
2253 | psli->mbox_active = pmbox; | |
2254 | break; | |
2255 | ||
2256 | case MBX_POLL: | |
2257 | i = 0; | |
2258 | psli->mbox_active = NULL; | |
2259 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
2260 | /* First read mbox status word */ | |
4cc2da1d | 2261 | word0 = *((volatile uint32_t *)&phba->slim2p->mbx); |
dea3101e | 2262 | word0 = le32_to_cpu(word0); |
2263 | } else { | |
2264 | /* First read mbox status word */ | |
2265 | word0 = readl(phba->MBslimaddr); | |
2266 | } | |
2267 | ||
2268 | /* Read the HBA Host Attention Register */ | |
2269 | ha_copy = readl(phba->HAregaddr); | |
2270 | ||
2271 | /* Wait for command to complete */ | |
41415862 JW |
2272 | while (((word0 & OWN_CHIP) == OWN_CHIP) || |
2273 | (!(ha_copy & HA_MBATT) && | |
2274 | (phba->hba_state > LPFC_WARM_START))) { | |
dea3101e | 2275 | if (i++ >= 100) { |
2276 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
2277 | spin_unlock_irqrestore(phba->host->host_lock, | |
2278 | drvr_flag); | |
2279 | return (MBX_NOT_FINISHED); | |
2280 | } | |
2281 | ||
2282 | /* Check if we took a mbox interrupt while we were | |
2283 | polling */ | |
2284 | if (((word0 & OWN_CHIP) != OWN_CHIP) | |
2285 | && (evtctr != psli->slistat.mbox_event)) | |
2286 | break; | |
2287 | ||
2288 | spin_unlock_irqrestore(phba->host->host_lock, | |
2289 | drvr_flag); | |
2290 | ||
2291 | /* Can be in interrupt context, do not sleep */ | |
2292 | /* (or might be called with interrupts disabled) */ | |
2293 | mdelay(i); | |
2294 | ||
2295 | spin_lock_irqsave(phba->host->host_lock, drvr_flag); | |
2296 | ||
2297 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
2298 | /* First copy command data */ | |
4cc2da1d JSEC |
2299 | word0 = *((volatile uint32_t *) |
2300 | &phba->slim2p->mbx); | |
dea3101e | 2301 | word0 = le32_to_cpu(word0); |
2302 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
2303 | MAILBOX_t *slimmb; | |
2304 | volatile uint32_t slimword0; | |
2305 | /* Check real SLIM for any errors */ | |
2306 | slimword0 = readl(phba->MBslimaddr); | |
2307 | slimmb = (MAILBOX_t *) & slimword0; | |
2308 | if (((slimword0 & OWN_CHIP) != OWN_CHIP) | |
2309 | && slimmb->mbxStatus) { | |
2310 | psli->sli_flag &= | |
2311 | ~LPFC_SLI2_ACTIVE; | |
2312 | word0 = slimword0; | |
2313 | } | |
2314 | } | |
2315 | } else { | |
2316 | /* First copy command data */ | |
2317 | word0 = readl(phba->MBslimaddr); | |
2318 | } | |
2319 | /* Read the HBA Host Attention Register */ | |
2320 | ha_copy = readl(phba->HAregaddr); | |
2321 | } | |
2322 | ||
2323 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
dea3101e | 2324 | /* copy results back to user */ |
4cc2da1d JSEC |
2325 | lpfc_sli_pcimem_bcopy(&phba->slim2p->mbx, mb, |
2326 | MAILBOX_CMD_SIZE); | |
dea3101e | 2327 | } else { |
2328 | /* First copy command data */ | |
2329 | lpfc_memcpy_from_slim(mb, phba->MBslimaddr, | |
2330 | MAILBOX_CMD_SIZE); | |
2331 | if ((mb->mbxCommand == MBX_DUMP_MEMORY) && | |
2332 | pmbox->context2) { | |
2333 | lpfc_memcpy_from_slim((void *)pmbox->context2, | |
2334 | phba->MBslimaddr + DMP_RSP_OFFSET, | |
2335 | mb->un.varDmp.word_cnt); | |
2336 | } | |
2337 | } | |
2338 | ||
2339 | writel(HA_MBATT, phba->HAregaddr); | |
2340 | readl(phba->HAregaddr); /* flush */ | |
2341 | ||
2342 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
2343 | status = mb->mbxStatus; | |
2344 | } | |
2345 | ||
2346 | spin_unlock_irqrestore(phba->host->host_lock, drvr_flag); | |
2347 | return (status); | |
2348 | } | |
2349 | ||
2350 | static int | |
2351 | lpfc_sli_ringtx_put(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, | |
2352 | struct lpfc_iocbq * piocb) | |
2353 | { | |
2354 | /* Insert the caller's iocb in the txq tail for later processing. */ | |
2355 | list_add_tail(&piocb->list, &pring->txq); | |
2356 | pring->txq_cnt++; | |
2357 | return (0); | |
2358 | } | |
2359 | ||
2360 | static struct lpfc_iocbq * | |
2361 | lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2362 | struct lpfc_iocbq ** piocb) | |
2363 | { | |
2364 | struct lpfc_iocbq * nextiocb; | |
2365 | ||
2366 | nextiocb = lpfc_sli_ringtx_get(phba, pring); | |
2367 | if (!nextiocb) { | |
2368 | nextiocb = *piocb; | |
2369 | *piocb = NULL; | |
2370 | } | |
2371 | ||
2372 | return nextiocb; | |
2373 | } | |
2374 | ||
2375 | int | |
2376 | lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2377 | struct lpfc_iocbq *piocb, uint32_t flag) | |
2378 | { | |
2379 | struct lpfc_iocbq *nextiocb; | |
2380 | IOCB_t *iocb; | |
2381 | ||
2382 | /* | |
2383 | * We should never get an IOCB if we are in a < LINK_DOWN state | |
2384 | */ | |
2385 | if (unlikely(phba->hba_state < LPFC_LINK_DOWN)) | |
2386 | return IOCB_ERROR; | |
2387 | ||
2388 | /* | |
2389 | * Check to see if we are blocking IOCB processing because of a | |
2390 | * outstanding mbox command. | |
2391 | */ | |
2392 | if (unlikely(pring->flag & LPFC_STOP_IOCB_MBX)) | |
2393 | goto iocb_busy; | |
2394 | ||
2395 | if (unlikely(phba->hba_state == LPFC_LINK_DOWN)) { | |
2396 | /* | |
2397 | * Only CREATE_XRI, CLOSE_XRI, ABORT_XRI, and QUE_RING_BUF | |
2398 | * can be issued if the link is not up. | |
2399 | */ | |
2400 | switch (piocb->iocb.ulpCommand) { | |
2401 | case CMD_QUE_RING_BUF_CN: | |
2402 | case CMD_QUE_RING_BUF64_CN: | |
dea3101e | 2403 | /* |
2404 | * For IOCBs, like QUE_RING_BUF, that have no rsp ring | |
2405 | * completion, iocb_cmpl MUST be 0. | |
2406 | */ | |
2407 | if (piocb->iocb_cmpl) | |
2408 | piocb->iocb_cmpl = NULL; | |
2409 | /*FALLTHROUGH*/ | |
2410 | case CMD_CREATE_XRI_CR: | |
2411 | break; | |
2412 | default: | |
2413 | goto iocb_busy; | |
2414 | } | |
2415 | ||
2416 | /* | |
2417 | * For FCP commands, we must be in a state where we can process link | |
2418 | * attention events. | |
2419 | */ | |
2420 | } else if (unlikely(pring->ringno == phba->sli.fcp_ring && | |
2421 | !(phba->sli.sli_flag & LPFC_PROCESS_LA))) | |
2422 | goto iocb_busy; | |
2423 | ||
dea3101e | 2424 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && |
2425 | (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb))) | |
2426 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
2427 | ||
2428 | if (iocb) | |
2429 | lpfc_sli_update_ring(phba, pring); | |
2430 | else | |
2431 | lpfc_sli_update_full_ring(phba, pring); | |
2432 | ||
2433 | if (!piocb) | |
2434 | return IOCB_SUCCESS; | |
2435 | ||
2436 | goto out_busy; | |
2437 | ||
2438 | iocb_busy: | |
2439 | pring->stats.iocb_cmd_delay++; | |
2440 | ||
2441 | out_busy: | |
2442 | ||
2443 | if (!(flag & SLI_IOCB_RET_IOCB)) { | |
2444 | lpfc_sli_ringtx_put(phba, pring, piocb); | |
2445 | return IOCB_SUCCESS; | |
2446 | } | |
2447 | ||
2448 | return IOCB_BUSY; | |
2449 | } | |
2450 | ||
cf5bf97e JW |
2451 | static int |
2452 | lpfc_extra_ring_setup( struct lpfc_hba *phba) | |
2453 | { | |
2454 | struct lpfc_sli *psli; | |
2455 | struct lpfc_sli_ring *pring; | |
2456 | ||
2457 | psli = &phba->sli; | |
2458 | ||
2459 | /* Adjust cmd/rsp ring iocb entries more evenly */ | |
2460 | pring = &psli->ring[psli->fcp_ring]; | |
2461 | pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
2462 | pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
2463 | pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
2464 | pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
2465 | ||
2466 | pring = &psli->ring[1]; | |
2467 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
2468 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
2469 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
2470 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
2471 | ||
2472 | /* Setup default profile for this ring */ | |
2473 | pring->iotag_max = 4096; | |
2474 | pring->num_mask = 1; | |
2475 | pring->prt[0].profile = 0; /* Mask 0 */ | |
2476 | pring->prt[0].rctl = FC_UNSOL_DATA; | |
2477 | pring->prt[0].type = 5; | |
2478 | pring->prt[0].lpfc_sli_rcv_unsol_event = NULL; | |
2479 | return 0; | |
2480 | } | |
2481 | ||
dea3101e | 2482 | int |
2483 | lpfc_sli_setup(struct lpfc_hba *phba) | |
2484 | { | |
2485 | int i, totiocb = 0; | |
2486 | struct lpfc_sli *psli = &phba->sli; | |
2487 | struct lpfc_sli_ring *pring; | |
2488 | ||
2489 | psli->num_rings = MAX_CONFIGURED_RINGS; | |
2490 | psli->sli_flag = 0; | |
2491 | psli->fcp_ring = LPFC_FCP_RING; | |
2492 | psli->next_ring = LPFC_FCP_NEXT_RING; | |
2493 | psli->ip_ring = LPFC_IP_RING; | |
2494 | ||
604a3e30 JB |
2495 | psli->iocbq_lookup = NULL; |
2496 | psli->iocbq_lookup_len = 0; | |
2497 | psli->last_iotag = 0; | |
2498 | ||
dea3101e | 2499 | for (i = 0; i < psli->num_rings; i++) { |
2500 | pring = &psli->ring[i]; | |
2501 | switch (i) { | |
2502 | case LPFC_FCP_RING: /* ring 0 - FCP */ | |
2503 | /* numCiocb and numRiocb are used in config_port */ | |
2504 | pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES; | |
2505 | pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES; | |
2506 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
2507 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
2508 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
2509 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
2510 | pring->iotag_ctr = 0; | |
2511 | pring->iotag_max = | |
2512 | (phba->cfg_hba_queue_depth * 2); | |
2513 | pring->fast_iotag = pring->iotag_max; | |
2514 | pring->num_mask = 0; | |
2515 | break; | |
2516 | case LPFC_IP_RING: /* ring 1 - IP */ | |
2517 | /* numCiocb and numRiocb are used in config_port */ | |
2518 | pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES; | |
2519 | pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES; | |
2520 | pring->num_mask = 0; | |
2521 | break; | |
2522 | case LPFC_ELS_RING: /* ring 2 - ELS / CT */ | |
2523 | /* numCiocb and numRiocb are used in config_port */ | |
2524 | pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES; | |
2525 | pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES; | |
2526 | pring->fast_iotag = 0; | |
2527 | pring->iotag_ctr = 0; | |
2528 | pring->iotag_max = 4096; | |
2529 | pring->num_mask = 4; | |
2530 | pring->prt[0].profile = 0; /* Mask 0 */ | |
2531 | pring->prt[0].rctl = FC_ELS_REQ; | |
2532 | pring->prt[0].type = FC_ELS_DATA; | |
2533 | pring->prt[0].lpfc_sli_rcv_unsol_event = | |
2534 | lpfc_els_unsol_event; | |
2535 | pring->prt[1].profile = 0; /* Mask 1 */ | |
2536 | pring->prt[1].rctl = FC_ELS_RSP; | |
2537 | pring->prt[1].type = FC_ELS_DATA; | |
2538 | pring->prt[1].lpfc_sli_rcv_unsol_event = | |
2539 | lpfc_els_unsol_event; | |
2540 | pring->prt[2].profile = 0; /* Mask 2 */ | |
2541 | /* NameServer Inquiry */ | |
2542 | pring->prt[2].rctl = FC_UNSOL_CTL; | |
2543 | /* NameServer */ | |
2544 | pring->prt[2].type = FC_COMMON_TRANSPORT_ULP; | |
2545 | pring->prt[2].lpfc_sli_rcv_unsol_event = | |
2546 | lpfc_ct_unsol_event; | |
2547 | pring->prt[3].profile = 0; /* Mask 3 */ | |
2548 | /* NameServer response */ | |
2549 | pring->prt[3].rctl = FC_SOL_CTL; | |
2550 | /* NameServer */ | |
2551 | pring->prt[3].type = FC_COMMON_TRANSPORT_ULP; | |
2552 | pring->prt[3].lpfc_sli_rcv_unsol_event = | |
2553 | lpfc_ct_unsol_event; | |
2554 | break; | |
2555 | } | |
2556 | totiocb += (pring->numCiocb + pring->numRiocb); | |
2557 | } | |
2558 | if (totiocb > MAX_SLI2_IOCB) { | |
2559 | /* Too many cmd / rsp ring entries in SLI2 SLIM */ | |
2560 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
2561 | "%d:0462 Too many cmd / rsp ring entries in " | |
2562 | "SLI2 SLIM Data: x%x x%x\n", | |
2563 | phba->brd_no, totiocb, MAX_SLI2_IOCB); | |
2564 | } | |
cf5bf97e JW |
2565 | if (phba->cfg_multi_ring_support == 2) |
2566 | lpfc_extra_ring_setup(phba); | |
dea3101e | 2567 | |
2568 | return 0; | |
2569 | } | |
2570 | ||
2571 | int | |
2572 | lpfc_sli_queue_setup(struct lpfc_hba * phba) | |
2573 | { | |
2574 | struct lpfc_sli *psli; | |
2575 | struct lpfc_sli_ring *pring; | |
604a3e30 | 2576 | int i; |
dea3101e | 2577 | |
2578 | psli = &phba->sli; | |
2579 | spin_lock_irq(phba->host->host_lock); | |
2580 | INIT_LIST_HEAD(&psli->mboxq); | |
2581 | /* Initialize list headers for txq and txcmplq as double linked lists */ | |
2582 | for (i = 0; i < psli->num_rings; i++) { | |
2583 | pring = &psli->ring[i]; | |
2584 | pring->ringno = i; | |
2585 | pring->next_cmdidx = 0; | |
2586 | pring->local_getidx = 0; | |
2587 | pring->cmdidx = 0; | |
2588 | INIT_LIST_HEAD(&pring->txq); | |
2589 | INIT_LIST_HEAD(&pring->txcmplq); | |
2590 | INIT_LIST_HEAD(&pring->iocb_continueq); | |
2591 | INIT_LIST_HEAD(&pring->postbufq); | |
dea3101e | 2592 | } |
2593 | spin_unlock_irq(phba->host->host_lock); | |
2594 | return (1); | |
2595 | } | |
2596 | ||
2597 | int | |
2598 | lpfc_sli_hba_down(struct lpfc_hba * phba) | |
2599 | { | |
2600 | struct lpfc_sli *psli; | |
2601 | struct lpfc_sli_ring *pring; | |
2602 | LPFC_MBOXQ_t *pmb; | |
2603 | struct lpfc_iocbq *iocb, *next_iocb; | |
2604 | IOCB_t *icmd = NULL; | |
2605 | int i; | |
2606 | unsigned long flags = 0; | |
2607 | ||
2608 | psli = &phba->sli; | |
2609 | lpfc_hba_down_prep(phba); | |
2610 | ||
2611 | spin_lock_irqsave(phba->host->host_lock, flags); | |
2612 | ||
2613 | for (i = 0; i < psli->num_rings; i++) { | |
2614 | pring = &psli->ring[i]; | |
2615 | pring->flag |= LPFC_DEFERRED_RING_EVENT; | |
2616 | ||
2617 | /* | |
2618 | * Error everything on the txq since these iocbs have not been | |
2619 | * given to the FW yet. | |
2620 | */ | |
2621 | pring->txq_cnt = 0; | |
2622 | ||
2623 | list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { | |
2624 | list_del_init(&iocb->list); | |
2625 | if (iocb->iocb_cmpl) { | |
2626 | icmd = &iocb->iocb; | |
2627 | icmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
2628 | icmd->un.ulpWord[4] = IOERR_SLI_DOWN; | |
2629 | spin_unlock_irqrestore(phba->host->host_lock, | |
2630 | flags); | |
2631 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
2632 | spin_lock_irqsave(phba->host->host_lock, flags); | |
604a3e30 JB |
2633 | } else |
2634 | lpfc_sli_release_iocbq(phba, iocb); | |
dea3101e | 2635 | } |
2636 | ||
2637 | INIT_LIST_HEAD(&(pring->txq)); | |
2638 | ||
dea3101e | 2639 | } |
2640 | ||
2641 | spin_unlock_irqrestore(phba->host->host_lock, flags); | |
2642 | ||
2643 | /* Return any active mbox cmds */ | |
2644 | del_timer_sync(&psli->mbox_tmo); | |
2645 | spin_lock_irqsave(phba->host->host_lock, flags); | |
2646 | phba->work_hba_events &= ~WORKER_MBOX_TMO; | |
2647 | if (psli->mbox_active) { | |
2648 | pmb = psli->mbox_active; | |
2649 | pmb->mb.mbxStatus = MBX_NOT_FINISHED; | |
2650 | if (pmb->mbox_cmpl) { | |
2651 | spin_unlock_irqrestore(phba->host->host_lock, flags); | |
2652 | pmb->mbox_cmpl(phba,pmb); | |
2653 | spin_lock_irqsave(phba->host->host_lock, flags); | |
2654 | } | |
2655 | } | |
2656 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
2657 | psli->mbox_active = NULL; | |
2658 | ||
2659 | /* Return any pending mbox cmds */ | |
2660 | while ((pmb = lpfc_mbox_get(phba)) != NULL) { | |
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 | ||
2669 | INIT_LIST_HEAD(&psli->mboxq); | |
2670 | ||
2671 | spin_unlock_irqrestore(phba->host->host_lock, flags); | |
2672 | ||
dea3101e | 2673 | return 1; |
2674 | } | |
2675 | ||
2676 | void | |
2677 | lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt) | |
2678 | { | |
2679 | uint32_t *src = srcp; | |
2680 | uint32_t *dest = destp; | |
2681 | uint32_t ldata; | |
2682 | int i; | |
2683 | ||
2684 | for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) { | |
2685 | ldata = *src; | |
2686 | ldata = le32_to_cpu(ldata); | |
2687 | *dest = ldata; | |
2688 | src++; | |
2689 | dest++; | |
2690 | } | |
2691 | } | |
2692 | ||
2693 | int | |
2694 | lpfc_sli_ringpostbuf_put(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, | |
2695 | struct lpfc_dmabuf * mp) | |
2696 | { | |
2697 | /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up | |
2698 | later */ | |
2699 | list_add_tail(&mp->list, &pring->postbufq); | |
2700 | ||
2701 | pring->postbufq_cnt++; | |
2702 | return 0; | |
2703 | } | |
2704 | ||
2705 | ||
2706 | struct lpfc_dmabuf * | |
2707 | lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2708 | dma_addr_t phys) | |
2709 | { | |
2710 | struct lpfc_dmabuf *mp, *next_mp; | |
2711 | struct list_head *slp = &pring->postbufq; | |
2712 | ||
2713 | /* Search postbufq, from the begining, looking for a match on phys */ | |
2714 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { | |
2715 | if (mp->phys == phys) { | |
2716 | list_del_init(&mp->list); | |
2717 | pring->postbufq_cnt--; | |
2718 | return mp; | |
2719 | } | |
2720 | } | |
2721 | ||
2722 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
2723 | "%d:0410 Cannot find virtual addr for mapped buf on " | |
2724 | "ring %d Data x%llx x%p x%p x%x\n", | |
2725 | phba->brd_no, pring->ringno, (unsigned long long)phys, | |
2726 | slp->next, slp->prev, pring->postbufq_cnt); | |
2727 | return NULL; | |
2728 | } | |
2729 | ||
2730 | static void | |
2731 | lpfc_sli_abort_elsreq_cmpl(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, | |
2732 | struct lpfc_iocbq * rspiocb) | |
2733 | { | |
2734 | struct lpfc_dmabuf *buf_ptr, *buf_ptr1; | |
2735 | /* Free the resources associated with the ELS_REQUEST64 IOCB the driver | |
2736 | * just aborted. | |
2737 | * In this case, context2 = cmd, context2->next = rsp, context3 = bpl | |
2738 | */ | |
2739 | if (cmdiocb->context2) { | |
2740 | buf_ptr1 = (struct lpfc_dmabuf *) cmdiocb->context2; | |
2741 | ||
2742 | /* Free the response IOCB before completing the abort | |
2743 | command. */ | |
2744 | buf_ptr = NULL; | |
2745 | list_remove_head((&buf_ptr1->list), buf_ptr, | |
2746 | struct lpfc_dmabuf, list); | |
2747 | if (buf_ptr) { | |
2748 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
2749 | kfree(buf_ptr); | |
2750 | } | |
2751 | lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys); | |
2752 | kfree(buf_ptr1); | |
2753 | } | |
2754 | ||
2755 | if (cmdiocb->context3) { | |
2756 | buf_ptr = (struct lpfc_dmabuf *) cmdiocb->context3; | |
2757 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
2758 | kfree(buf_ptr); | |
2759 | } | |
2760 | ||
604a3e30 | 2761 | lpfc_sli_release_iocbq(phba, cmdiocb); |
dea3101e | 2762 | return; |
2763 | } | |
2764 | ||
2765 | int | |
2766 | lpfc_sli_issue_abort_iotag32(struct lpfc_hba * phba, | |
2767 | struct lpfc_sli_ring * pring, | |
2768 | struct lpfc_iocbq * cmdiocb) | |
2769 | { | |
0bd4ca25 | 2770 | struct lpfc_iocbq *abtsiocbp; |
dea3101e | 2771 | IOCB_t *icmd = NULL; |
2772 | IOCB_t *iabt = NULL; | |
2773 | ||
2774 | /* issue ABTS for this IOCB based on iotag */ | |
0bd4ca25 | 2775 | abtsiocbp = lpfc_sli_get_iocbq(phba); |
dea3101e | 2776 | if (abtsiocbp == NULL) |
2777 | return 0; | |
dea3101e | 2778 | |
2779 | iabt = &abtsiocbp->iocb; | |
2780 | icmd = &cmdiocb->iocb; | |
2781 | switch (icmd->ulpCommand) { | |
2782 | case CMD_ELS_REQUEST64_CR: | |
2783 | /* Even though we abort the ELS command, the firmware may access | |
2784 | * the BPL or other resources before it processes our | |
2785 | * ABORT_MXRI64. Thus we must delay reusing the cmdiocb | |
2786 | * resources till the actual abort request completes. | |
2787 | */ | |
2788 | abtsiocbp->context1 = (void *)((unsigned long)icmd->ulpCommand); | |
2789 | abtsiocbp->context2 = cmdiocb->context2; | |
2790 | abtsiocbp->context3 = cmdiocb->context3; | |
2791 | cmdiocb->context2 = NULL; | |
2792 | cmdiocb->context3 = NULL; | |
2793 | abtsiocbp->iocb_cmpl = lpfc_sli_abort_elsreq_cmpl; | |
2794 | break; | |
2795 | default: | |
604a3e30 | 2796 | lpfc_sli_release_iocbq(phba, abtsiocbp); |
dea3101e | 2797 | return 0; |
2798 | } | |
2799 | ||
2800 | iabt->un.amxri.abortType = ABORT_TYPE_ABTS; | |
2801 | iabt->un.amxri.iotag32 = icmd->un.elsreq64.bdl.ulpIoTag32; | |
2802 | ||
2803 | iabt->ulpLe = 1; | |
2804 | iabt->ulpClass = CLASS3; | |
2805 | iabt->ulpCommand = CMD_ABORT_MXRI64_CN; | |
2806 | ||
2807 | if (lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0) == IOCB_ERROR) { | |
604a3e30 | 2808 | lpfc_sli_release_iocbq(phba, abtsiocbp); |
dea3101e | 2809 | return 0; |
2810 | } | |
2811 | ||
2812 | return 1; | |
2813 | } | |
2814 | ||
2815 | static int | |
0bd4ca25 JSEC |
2816 | lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, uint16_t tgt_id, |
2817 | uint64_t lun_id, uint32_t ctx, | |
2818 | lpfc_ctx_cmd ctx_cmd) | |
dea3101e | 2819 | { |
0bd4ca25 JSEC |
2820 | struct lpfc_scsi_buf *lpfc_cmd; |
2821 | struct scsi_cmnd *cmnd; | |
dea3101e | 2822 | int rc = 1; |
2823 | ||
0bd4ca25 JSEC |
2824 | if (!(iocbq->iocb_flag & LPFC_IO_FCP)) |
2825 | return rc; | |
2826 | ||
2827 | lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq); | |
2828 | cmnd = lpfc_cmd->pCmd; | |
2829 | ||
2830 | if (cmnd == NULL) | |
dea3101e | 2831 | return rc; |
2832 | ||
2833 | switch (ctx_cmd) { | |
2834 | case LPFC_CTX_LUN: | |
0bd4ca25 JSEC |
2835 | if ((cmnd->device->id == tgt_id) && |
2836 | (cmnd->device->lun == lun_id)) | |
dea3101e | 2837 | rc = 0; |
2838 | break; | |
2839 | case LPFC_CTX_TGT: | |
0bd4ca25 | 2840 | if (cmnd->device->id == tgt_id) |
dea3101e | 2841 | rc = 0; |
2842 | break; | |
2843 | case LPFC_CTX_CTX: | |
0bd4ca25 | 2844 | if (iocbq->iocb.ulpContext == ctx) |
dea3101e | 2845 | rc = 0; |
0bd4ca25 | 2846 | break; |
dea3101e | 2847 | case LPFC_CTX_HOST: |
2848 | rc = 0; | |
2849 | break; | |
2850 | default: | |
2851 | printk(KERN_ERR "%s: Unknown context cmd type, value %d\n", | |
2852 | __FUNCTION__, ctx_cmd); | |
2853 | break; | |
2854 | } | |
2855 | ||
2856 | return rc; | |
2857 | } | |
2858 | ||
2859 | int | |
2860 | lpfc_sli_sum_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2861 | uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd ctx_cmd) | |
2862 | { | |
0bd4ca25 JSEC |
2863 | struct lpfc_iocbq *iocbq; |
2864 | int sum, i; | |
dea3101e | 2865 | |
0bd4ca25 JSEC |
2866 | for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) { |
2867 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 2868 | |
0bd4ca25 JSEC |
2869 | if (lpfc_sli_validate_fcp_iocb (iocbq, tgt_id, lun_id, |
2870 | 0, ctx_cmd) == 0) | |
2871 | sum++; | |
dea3101e | 2872 | } |
0bd4ca25 | 2873 | |
dea3101e | 2874 | return sum; |
2875 | } | |
2876 | ||
5eb95af0 JSEC |
2877 | void |
2878 | lpfc_sli_abort_fcp_cmpl(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, | |
2879 | struct lpfc_iocbq * rspiocb) | |
2880 | { | |
2881 | spin_lock_irq(phba->host->host_lock); | |
604a3e30 | 2882 | lpfc_sli_release_iocbq(phba, cmdiocb); |
5eb95af0 JSEC |
2883 | spin_unlock_irq(phba->host->host_lock); |
2884 | return; | |
2885 | } | |
2886 | ||
dea3101e | 2887 | int |
2888 | lpfc_sli_abort_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2889 | uint16_t tgt_id, uint64_t lun_id, uint32_t ctx, | |
2890 | lpfc_ctx_cmd abort_cmd) | |
2891 | { | |
0bd4ca25 JSEC |
2892 | struct lpfc_iocbq *iocbq; |
2893 | struct lpfc_iocbq *abtsiocb; | |
dea3101e | 2894 | IOCB_t *cmd = NULL; |
dea3101e | 2895 | int errcnt = 0, ret_val = 0; |
0bd4ca25 | 2896 | int i; |
dea3101e | 2897 | |
0bd4ca25 JSEC |
2898 | for (i = 1; i <= phba->sli.last_iotag; i++) { |
2899 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 2900 | |
0bd4ca25 JSEC |
2901 | if (lpfc_sli_validate_fcp_iocb (iocbq, tgt_id, lun_id, |
2902 | 0, abort_cmd) != 0) | |
dea3101e | 2903 | continue; |
2904 | ||
2905 | /* issue ABTS for this IOCB based on iotag */ | |
0bd4ca25 | 2906 | abtsiocb = lpfc_sli_get_iocbq(phba); |
dea3101e | 2907 | if (abtsiocb == NULL) { |
2908 | errcnt++; | |
2909 | continue; | |
2910 | } | |
dea3101e | 2911 | |
0bd4ca25 | 2912 | cmd = &iocbq->iocb; |
dea3101e | 2913 | abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS; |
2914 | abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext; | |
2915 | abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag; | |
2916 | abtsiocb->iocb.ulpLe = 1; | |
2917 | abtsiocb->iocb.ulpClass = cmd->ulpClass; | |
2918 | ||
2919 | if (phba->hba_state >= LPFC_LINK_UP) | |
2920 | abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN; | |
2921 | else | |
2922 | abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN; | |
2923 | ||
5eb95af0 JSEC |
2924 | /* Setup callback routine and issue the command. */ |
2925 | abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl; | |
dea3101e | 2926 | ret_val = lpfc_sli_issue_iocb(phba, pring, abtsiocb, 0); |
2927 | if (ret_val == IOCB_ERROR) { | |
604a3e30 | 2928 | lpfc_sli_release_iocbq(phba, abtsiocb); |
dea3101e | 2929 | errcnt++; |
2930 | continue; | |
2931 | } | |
2932 | } | |
2933 | ||
2934 | return errcnt; | |
2935 | } | |
2936 | ||
68876920 JSEC |
2937 | static void |
2938 | lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba, | |
2939 | struct lpfc_iocbq *cmdiocbq, | |
2940 | struct lpfc_iocbq *rspiocbq) | |
dea3101e | 2941 | { |
68876920 JSEC |
2942 | wait_queue_head_t *pdone_q; |
2943 | unsigned long iflags; | |
dea3101e | 2944 | |
68876920 JSEC |
2945 | spin_lock_irqsave(phba->host->host_lock, iflags); |
2946 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; | |
2947 | if (cmdiocbq->context2 && rspiocbq) | |
2948 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, | |
2949 | &rspiocbq->iocb, sizeof(IOCB_t)); | |
2950 | ||
2951 | pdone_q = cmdiocbq->context_un.wait_queue; | |
2952 | spin_unlock_irqrestore(phba->host->host_lock, iflags); | |
2953 | if (pdone_q) | |
2954 | wake_up(pdone_q); | |
dea3101e | 2955 | return; |
2956 | } | |
2957 | ||
68876920 JSEC |
2958 | /* |
2959 | * Issue the caller's iocb and wait for its completion, but no longer than the | |
2960 | * caller's timeout. Note that iocb_flags is cleared before the | |
2961 | * lpfc_sli_issue_call since the wake routine sets a unique value and by | |
2962 | * definition this is a wait function. | |
2963 | */ | |
dea3101e | 2964 | int |
68876920 JSEC |
2965 | lpfc_sli_issue_iocb_wait(struct lpfc_hba * phba, |
2966 | struct lpfc_sli_ring * pring, | |
2967 | struct lpfc_iocbq * piocb, | |
2968 | struct lpfc_iocbq * prspiocbq, | |
2969 | uint32_t timeout) | |
dea3101e | 2970 | { |
68876920 JSEC |
2971 | DECLARE_WAIT_QUEUE_HEAD(done_q); |
2972 | long timeleft, timeout_req = 0; | |
2973 | int retval = IOCB_SUCCESS; | |
875fbdfe | 2974 | uint32_t creg_val; |
dea3101e | 2975 | |
2976 | /* | |
68876920 JSEC |
2977 | * If the caller has provided a response iocbq buffer, then context2 |
2978 | * is NULL or its an error. | |
dea3101e | 2979 | */ |
68876920 JSEC |
2980 | if (prspiocbq) { |
2981 | if (piocb->context2) | |
2982 | return IOCB_ERROR; | |
2983 | piocb->context2 = prspiocbq; | |
dea3101e | 2984 | } |
2985 | ||
68876920 JSEC |
2986 | piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait; |
2987 | piocb->context_un.wait_queue = &done_q; | |
2988 | piocb->iocb_flag &= ~LPFC_IO_WAKE; | |
dea3101e | 2989 | |
875fbdfe JSEC |
2990 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
2991 | creg_val = readl(phba->HCregaddr); | |
2992 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); | |
2993 | writel(creg_val, phba->HCregaddr); | |
2994 | readl(phba->HCregaddr); /* flush */ | |
2995 | } | |
2996 | ||
68876920 JSEC |
2997 | retval = lpfc_sli_issue_iocb(phba, pring, piocb, 0); |
2998 | if (retval == IOCB_SUCCESS) { | |
2999 | timeout_req = timeout * HZ; | |
3000 | spin_unlock_irq(phba->host->host_lock); | |
3001 | timeleft = wait_event_timeout(done_q, | |
3002 | piocb->iocb_flag & LPFC_IO_WAKE, | |
3003 | timeout_req); | |
3004 | spin_lock_irq(phba->host->host_lock); | |
dea3101e | 3005 | |
68876920 JSEC |
3006 | if (timeleft == 0) { |
3007 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
3008 | "%d:0329 IOCB wait timeout error - no " | |
3009 | "wake response Data x%x\n", | |
3010 | phba->brd_no, timeout); | |
3011 | retval = IOCB_TIMEDOUT; | |
3012 | } else if (!(piocb->iocb_flag & LPFC_IO_WAKE)) { | |
3013 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
3014 | "%d:0330 IOCB wake NOT set, " | |
3015 | "Data x%x x%lx\n", phba->brd_no, | |
3016 | timeout, (timeleft / jiffies)); | |
3017 | retval = IOCB_TIMEDOUT; | |
3018 | } else { | |
3019 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3020 | "%d:0331 IOCB wake signaled\n", | |
3021 | phba->brd_no); | |
dea3101e | 3022 | } |
68876920 JSEC |
3023 | } else { |
3024 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3025 | "%d:0332 IOCB wait issue failed, Data x%x\n", | |
3026 | phba->brd_no, retval); | |
3027 | retval = IOCB_ERROR; | |
dea3101e | 3028 | } |
3029 | ||
875fbdfe JSEC |
3030 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
3031 | creg_val = readl(phba->HCregaddr); | |
3032 | creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); | |
3033 | writel(creg_val, phba->HCregaddr); | |
3034 | readl(phba->HCregaddr); /* flush */ | |
3035 | } | |
3036 | ||
68876920 JSEC |
3037 | if (prspiocbq) |
3038 | piocb->context2 = NULL; | |
3039 | ||
3040 | piocb->context_un.wait_queue = NULL; | |
3041 | piocb->iocb_cmpl = NULL; | |
dea3101e | 3042 | return retval; |
3043 | } | |
68876920 | 3044 | |
dea3101e | 3045 | int |
3046 | lpfc_sli_issue_mbox_wait(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq, | |
3047 | uint32_t timeout) | |
3048 | { | |
3049 | DECLARE_WAIT_QUEUE_HEAD(done_q); | |
3050 | DECLARE_WAITQUEUE(wq_entry, current); | |
3051 | uint32_t timeleft = 0; | |
3052 | int retval; | |
3053 | ||
3054 | /* The caller must leave context1 empty. */ | |
3055 | if (pmboxq->context1 != 0) { | |
3056 | return (MBX_NOT_FINISHED); | |
3057 | } | |
3058 | ||
3059 | /* setup wake call as IOCB callback */ | |
3060 | pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait; | |
3061 | /* setup context field to pass wait_queue pointer to wake function */ | |
3062 | pmboxq->context1 = &done_q; | |
3063 | ||
3064 | /* start to sleep before we wait, to avoid races */ | |
3065 | set_current_state(TASK_INTERRUPTIBLE); | |
3066 | add_wait_queue(&done_q, &wq_entry); | |
3067 | ||
3068 | /* now issue the command */ | |
3069 | retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); | |
3070 | ||
3071 | if (retval == MBX_BUSY || retval == MBX_SUCCESS) { | |
3072 | timeleft = schedule_timeout(timeout * HZ); | |
3073 | pmboxq->context1 = NULL; | |
3074 | /* if schedule_timeout returns 0, we timed out and were not | |
3075 | woken up */ | |
406d6041 | 3076 | if ((timeleft == 0) || signal_pending(current)) |
dea3101e | 3077 | retval = MBX_TIMEOUT; |
406d6041 | 3078 | else |
dea3101e | 3079 | retval = MBX_SUCCESS; |
dea3101e | 3080 | } |
3081 | ||
3082 | ||
3083 | set_current_state(TASK_RUNNING); | |
3084 | remove_wait_queue(&done_q, &wq_entry); | |
3085 | return retval; | |
3086 | } | |
3087 | ||
b4c02652 JS |
3088 | int |
3089 | lpfc_sli_flush_mbox_queue(struct lpfc_hba * phba) | |
3090 | { | |
3091 | int i = 0; | |
3092 | ||
3093 | while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE && !phba->stopped) { | |
3094 | if (i++ > LPFC_MBOX_TMO * 1000) | |
3095 | return 1; | |
3096 | ||
3097 | if (lpfc_sli_handle_mb_event(phba) == 0) | |
3098 | i = 0; | |
3099 | ||
3100 | msleep(1); | |
3101 | } | |
3102 | ||
3103 | return (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) ? 1 : 0; | |
3104 | } | |
3105 | ||
dea3101e | 3106 | irqreturn_t |
3107 | lpfc_intr_handler(int irq, void *dev_id, struct pt_regs * regs) | |
3108 | { | |
3109 | struct lpfc_hba *phba; | |
3110 | uint32_t ha_copy; | |
3111 | uint32_t work_ha_copy; | |
3112 | unsigned long status; | |
3113 | int i; | |
3114 | uint32_t control; | |
3115 | ||
3116 | /* | |
3117 | * Get the driver's phba structure from the dev_id and | |
3118 | * assume the HBA is not interrupting. | |
3119 | */ | |
3120 | phba = (struct lpfc_hba *) dev_id; | |
3121 | ||
3122 | if (unlikely(!phba)) | |
3123 | return IRQ_NONE; | |
3124 | ||
3125 | phba->sli.slistat.sli_intr++; | |
3126 | ||
3127 | /* | |
3128 | * Call the HBA to see if it is interrupting. If not, don't claim | |
3129 | * the interrupt | |
3130 | */ | |
3131 | ||
3132 | /* Ignore all interrupts during initialization. */ | |
3133 | if (unlikely(phba->hba_state < LPFC_LINK_DOWN)) | |
3134 | return IRQ_NONE; | |
3135 | ||
3136 | /* | |
3137 | * Read host attention register to determine interrupt source | |
3138 | * Clear Attention Sources, except Error Attention (to | |
3139 | * preserve status) and Link Attention | |
3140 | */ | |
3141 | spin_lock(phba->host->host_lock); | |
3142 | ha_copy = readl(phba->HAregaddr); | |
3143 | writel((ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr); | |
3144 | readl(phba->HAregaddr); /* flush */ | |
3145 | spin_unlock(phba->host->host_lock); | |
3146 | ||
3147 | if (unlikely(!ha_copy)) | |
3148 | return IRQ_NONE; | |
3149 | ||
3150 | work_ha_copy = ha_copy & phba->work_ha_mask; | |
3151 | ||
3152 | if (unlikely(work_ha_copy)) { | |
3153 | if (work_ha_copy & HA_LATT) { | |
3154 | if (phba->sli.sli_flag & LPFC_PROCESS_LA) { | |
3155 | /* | |
3156 | * Turn off Link Attention interrupts | |
3157 | * until CLEAR_LA done | |
3158 | */ | |
3159 | spin_lock(phba->host->host_lock); | |
3160 | phba->sli.sli_flag &= ~LPFC_PROCESS_LA; | |
3161 | control = readl(phba->HCregaddr); | |
3162 | control &= ~HC_LAINT_ENA; | |
3163 | writel(control, phba->HCregaddr); | |
3164 | readl(phba->HCregaddr); /* flush */ | |
3165 | spin_unlock(phba->host->host_lock); | |
3166 | } | |
3167 | else | |
3168 | work_ha_copy &= ~HA_LATT; | |
3169 | } | |
3170 | ||
3171 | if (work_ha_copy & ~(HA_ERATT|HA_MBATT|HA_LATT)) { | |
3172 | for (i = 0; i < phba->sli.num_rings; i++) { | |
3173 | if (work_ha_copy & (HA_RXATT << (4*i))) { | |
3174 | /* | |
3175 | * Turn off Slow Rings interrupts | |
3176 | */ | |
3177 | spin_lock(phba->host->host_lock); | |
3178 | control = readl(phba->HCregaddr); | |
3179 | control &= ~(HC_R0INT_ENA << i); | |
3180 | writel(control, phba->HCregaddr); | |
3181 | readl(phba->HCregaddr); /* flush */ | |
3182 | spin_unlock(phba->host->host_lock); | |
3183 | } | |
3184 | } | |
3185 | } | |
3186 | ||
3187 | if (work_ha_copy & HA_ERATT) { | |
3188 | phba->hba_state = LPFC_HBA_ERROR; | |
3189 | /* | |
3190 | * There was a link/board error. Read the | |
3191 | * status register to retrieve the error event | |
3192 | * and process it. | |
3193 | */ | |
3194 | phba->sli.slistat.err_attn_event++; | |
3195 | /* Save status info */ | |
3196 | phba->work_hs = readl(phba->HSregaddr); | |
3197 | phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); | |
3198 | phba->work_status[1] = readl(phba->MBslimaddr + 0xac); | |
3199 | ||
3200 | /* Clear Chip error bit */ | |
3201 | writel(HA_ERATT, phba->HAregaddr); | |
3202 | readl(phba->HAregaddr); /* flush */ | |
9290831f | 3203 | phba->stopped = 1; |
dea3101e | 3204 | } |
3205 | ||
3206 | spin_lock(phba->host->host_lock); | |
3207 | phba->work_ha |= work_ha_copy; | |
3208 | if (phba->work_wait) | |
3209 | wake_up(phba->work_wait); | |
3210 | spin_unlock(phba->host->host_lock); | |
3211 | } | |
3212 | ||
3213 | ha_copy &= ~(phba->work_ha_mask); | |
3214 | ||
3215 | /* | |
3216 | * Process all events on FCP ring. Take the optimized path for | |
3217 | * FCP IO. Any other IO is slow path and is handled by | |
3218 | * the worker thread. | |
3219 | */ | |
3220 | status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); | |
3221 | status >>= (4*LPFC_FCP_RING); | |
3222 | if (status & HA_RXATT) | |
3223 | lpfc_sli_handle_fast_ring_event(phba, | |
3224 | &phba->sli.ring[LPFC_FCP_RING], | |
3225 | status); | |
3226 | return IRQ_HANDLED; | |
3227 | ||
3228 | } /* lpfc_intr_handler */ |