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dea3101e JB |
1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
c44ce173 | 3 | * Fibre Channel Host Bus Adapters. * |
9413afff | 4 | * Copyright (C) 2004-2007 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 JB |
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 JB |
20 | *******************************************************************/ |
21 | ||
dea3101e JB |
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 JB |
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 JB |
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, \ | |
2e0fef85 | 55 | phba->pport->port_state, \ |
dea3101e | 56 | psli->sli_flag, \ |
2e0fef85 | 57 | flag) |
dea3101e JB |
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 | ||
2e0fef85 JS |
68 | static struct lpfc_iocbq * |
69 | __lpfc_sli_get_iocbq(struct lpfc_hba *phba) | |
0bd4ca25 JSEC |
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 | ||
2e0fef85 JS |
78 | struct lpfc_iocbq * |
79 | lpfc_sli_get_iocbq(struct lpfc_hba *phba) | |
80 | { | |
81 | struct lpfc_iocbq * iocbq = NULL; | |
82 | unsigned long iflags; | |
83 | ||
84 | spin_lock_irqsave(&phba->hbalock, iflags); | |
85 | iocbq = __lpfc_sli_get_iocbq(phba); | |
86 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
87 | return iocbq; | |
88 | } | |
89 | ||
604a3e30 | 90 | void |
2e0fef85 | 91 | __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) |
604a3e30 | 92 | { |
2e0fef85 | 93 | size_t start_clean = offsetof(struct lpfc_iocbq, iocb); |
604a3e30 JB |
94 | |
95 | /* | |
96 | * Clean all volatile data fields, preserve iotag and node struct. | |
97 | */ | |
98 | memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean); | |
99 | list_add_tail(&iocbq->list, &phba->lpfc_iocb_list); | |
100 | } | |
101 | ||
2e0fef85 JS |
102 | void |
103 | lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) | |
104 | { | |
105 | unsigned long iflags; | |
106 | ||
107 | /* | |
108 | * Clean all volatile data fields, preserve iotag and node struct. | |
109 | */ | |
110 | spin_lock_irqsave(&phba->hbalock, iflags); | |
111 | __lpfc_sli_release_iocbq(phba, iocbq); | |
112 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
113 | } | |
114 | ||
dea3101e JB |
115 | /* |
116 | * Translate the iocb command to an iocb command type used to decide the final | |
117 | * disposition of each completed IOCB. | |
118 | */ | |
119 | static lpfc_iocb_type | |
120 | lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd) | |
121 | { | |
122 | lpfc_iocb_type type = LPFC_UNKNOWN_IOCB; | |
123 | ||
124 | if (iocb_cmnd > CMD_MAX_IOCB_CMD) | |
125 | return 0; | |
126 | ||
127 | switch (iocb_cmnd) { | |
128 | case CMD_XMIT_SEQUENCE_CR: | |
129 | case CMD_XMIT_SEQUENCE_CX: | |
130 | case CMD_XMIT_BCAST_CN: | |
131 | case CMD_XMIT_BCAST_CX: | |
132 | case CMD_ELS_REQUEST_CR: | |
133 | case CMD_ELS_REQUEST_CX: | |
134 | case CMD_CREATE_XRI_CR: | |
135 | case CMD_CREATE_XRI_CX: | |
136 | case CMD_GET_RPI_CN: | |
137 | case CMD_XMIT_ELS_RSP_CX: | |
138 | case CMD_GET_RPI_CR: | |
139 | case CMD_FCP_IWRITE_CR: | |
140 | case CMD_FCP_IWRITE_CX: | |
141 | case CMD_FCP_IREAD_CR: | |
142 | case CMD_FCP_IREAD_CX: | |
143 | case CMD_FCP_ICMND_CR: | |
144 | case CMD_FCP_ICMND_CX: | |
f5603511 JS |
145 | case CMD_FCP_TSEND_CX: |
146 | case CMD_FCP_TRSP_CX: | |
147 | case CMD_FCP_TRECEIVE_CX: | |
148 | case CMD_FCP_AUTO_TRSP_CX: | |
dea3101e JB |
149 | case CMD_ADAPTER_MSG: |
150 | case CMD_ADAPTER_DUMP: | |
151 | case CMD_XMIT_SEQUENCE64_CR: | |
152 | case CMD_XMIT_SEQUENCE64_CX: | |
153 | case CMD_XMIT_BCAST64_CN: | |
154 | case CMD_XMIT_BCAST64_CX: | |
155 | case CMD_ELS_REQUEST64_CR: | |
156 | case CMD_ELS_REQUEST64_CX: | |
157 | case CMD_FCP_IWRITE64_CR: | |
158 | case CMD_FCP_IWRITE64_CX: | |
159 | case CMD_FCP_IREAD64_CR: | |
160 | case CMD_FCP_IREAD64_CX: | |
161 | case CMD_FCP_ICMND64_CR: | |
162 | case CMD_FCP_ICMND64_CX: | |
f5603511 JS |
163 | case CMD_FCP_TSEND64_CX: |
164 | case CMD_FCP_TRSP64_CX: | |
165 | case CMD_FCP_TRECEIVE64_CX: | |
dea3101e JB |
166 | case CMD_GEN_REQUEST64_CR: |
167 | case CMD_GEN_REQUEST64_CX: | |
168 | case CMD_XMIT_ELS_RSP64_CX: | |
169 | type = LPFC_SOL_IOCB; | |
170 | break; | |
171 | case CMD_ABORT_XRI_CN: | |
172 | case CMD_ABORT_XRI_CX: | |
173 | case CMD_CLOSE_XRI_CN: | |
174 | case CMD_CLOSE_XRI_CX: | |
175 | case CMD_XRI_ABORTED_CX: | |
176 | case CMD_ABORT_MXRI64_CN: | |
177 | type = LPFC_ABORT_IOCB; | |
178 | break; | |
179 | case CMD_RCV_SEQUENCE_CX: | |
180 | case CMD_RCV_ELS_REQ_CX: | |
181 | case CMD_RCV_SEQUENCE64_CX: | |
182 | case CMD_RCV_ELS_REQ64_CX: | |
183 | type = LPFC_UNSOL_IOCB; | |
184 | break; | |
185 | default: | |
186 | type = LPFC_UNKNOWN_IOCB; | |
187 | break; | |
188 | } | |
189 | ||
190 | return type; | |
191 | } | |
192 | ||
193 | static int | |
2e0fef85 | 194 | lpfc_sli_ring_map(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
dea3101e JB |
195 | { |
196 | struct lpfc_sli *psli = &phba->sli; | |
197 | MAILBOX_t *pmbox = &pmb->mb; | |
198 | int i, rc; | |
199 | ||
200 | for (i = 0; i < psli->num_rings; i++) { | |
2e0fef85 | 201 | phba->link_state = LPFC_INIT_MBX_CMDS; |
dea3101e JB |
202 | lpfc_config_ring(phba, i, pmb); |
203 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
204 | if (rc != MBX_SUCCESS) { | |
205 | lpfc_printf_log(phba, | |
206 | KERN_ERR, | |
207 | LOG_INIT, | |
208 | "%d:0446 Adapter failed to init, " | |
209 | "mbxCmd x%x CFG_RING, mbxStatus x%x, " | |
210 | "ring %d\n", | |
211 | phba->brd_no, | |
212 | pmbox->mbxCommand, | |
213 | pmbox->mbxStatus, | |
214 | i); | |
2e0fef85 | 215 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e JB |
216 | return -ENXIO; |
217 | } | |
218 | } | |
219 | return 0; | |
220 | } | |
221 | ||
222 | static int | |
2e0fef85 JS |
223 | lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
224 | struct lpfc_iocbq *piocb) | |
dea3101e | 225 | { |
dea3101e JB |
226 | list_add_tail(&piocb->list, &pring->txcmplq); |
227 | pring->txcmplq_cnt++; | |
228 | if (unlikely(pring->ringno == LPFC_ELS_RING)) | |
2e0fef85 JS |
229 | mod_timer(&piocb->vport->els_tmofunc, |
230 | jiffies + HZ * (phba->fc_ratov << 1)); | |
dea3101e | 231 | |
2e0fef85 | 232 | return 0; |
dea3101e JB |
233 | } |
234 | ||
235 | static struct lpfc_iocbq * | |
2e0fef85 | 236 | lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e JB |
237 | { |
238 | struct list_head *dlp; | |
239 | struct lpfc_iocbq *cmd_iocb; | |
240 | ||
241 | dlp = &pring->txq; | |
242 | cmd_iocb = NULL; | |
243 | list_remove_head((&pring->txq), cmd_iocb, | |
244 | struct lpfc_iocbq, | |
245 | list); | |
246 | if (cmd_iocb) { | |
247 | /* If the first ptr is not equal to the list header, | |
248 | * deque the IOCBQ_t and return it. | |
249 | */ | |
250 | pring->txq_cnt--; | |
251 | } | |
2e0fef85 | 252 | return cmd_iocb; |
dea3101e JB |
253 | } |
254 | ||
255 | static IOCB_t * | |
256 | lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
257 | { | |
4cc2da1d | 258 | struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno]; |
dea3101e JB |
259 | uint32_t max_cmd_idx = pring->numCiocb; |
260 | IOCB_t *iocb = NULL; | |
261 | ||
262 | if ((pring->next_cmdidx == pring->cmdidx) && | |
263 | (++pring->next_cmdidx >= max_cmd_idx)) | |
264 | pring->next_cmdidx = 0; | |
265 | ||
266 | if (unlikely(pring->local_getidx == pring->next_cmdidx)) { | |
267 | ||
268 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
269 | ||
270 | if (unlikely(pring->local_getidx >= max_cmd_idx)) { | |
271 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
272 | "%d:0315 Ring %d issue: portCmdGet %d " | |
273 | "is bigger then cmd ring %d\n", | |
274 | phba->brd_no, pring->ringno, | |
275 | pring->local_getidx, max_cmd_idx); | |
276 | ||
2e0fef85 | 277 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e JB |
278 | /* |
279 | * All error attention handlers are posted to | |
280 | * worker thread | |
281 | */ | |
282 | phba->work_ha |= HA_ERATT; | |
283 | phba->work_hs = HS_FFER3; | |
284 | if (phba->work_wait) | |
285 | wake_up(phba->work_wait); | |
286 | ||
287 | return NULL; | |
288 | } | |
289 | ||
290 | if (pring->local_getidx == pring->next_cmdidx) | |
291 | return NULL; | |
292 | } | |
293 | ||
294 | iocb = IOCB_ENTRY(pring->cmdringaddr, pring->cmdidx); | |
295 | ||
296 | return iocb; | |
297 | } | |
298 | ||
604a3e30 | 299 | uint16_t |
2e0fef85 | 300 | lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) |
dea3101e | 301 | { |
2e0fef85 JS |
302 | struct lpfc_iocbq **new_arr; |
303 | struct lpfc_iocbq **old_arr; | |
604a3e30 JB |
304 | size_t new_len; |
305 | struct lpfc_sli *psli = &phba->sli; | |
306 | uint16_t iotag; | |
dea3101e | 307 | |
2e0fef85 | 308 | spin_lock_irq(&phba->hbalock); |
604a3e30 JB |
309 | iotag = psli->last_iotag; |
310 | if(++iotag < psli->iocbq_lookup_len) { | |
311 | psli->last_iotag = iotag; | |
312 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 313 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
314 | iocbq->iotag = iotag; |
315 | return iotag; | |
2e0fef85 | 316 | } else if (psli->iocbq_lookup_len < (0xffff |
604a3e30 JB |
317 | - LPFC_IOCBQ_LOOKUP_INCREMENT)) { |
318 | new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT; | |
2e0fef85 JS |
319 | spin_unlock_irq(&phba->hbalock); |
320 | new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *), | |
604a3e30 JB |
321 | GFP_KERNEL); |
322 | if (new_arr) { | |
2e0fef85 | 323 | spin_lock_irq(&phba->hbalock); |
604a3e30 JB |
324 | old_arr = psli->iocbq_lookup; |
325 | if (new_len <= psli->iocbq_lookup_len) { | |
326 | /* highly unprobable case */ | |
327 | kfree(new_arr); | |
328 | iotag = psli->last_iotag; | |
329 | if(++iotag < psli->iocbq_lookup_len) { | |
330 | psli->last_iotag = iotag; | |
331 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 332 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
333 | iocbq->iotag = iotag; |
334 | return iotag; | |
335 | } | |
2e0fef85 | 336 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
337 | return 0; |
338 | } | |
339 | if (psli->iocbq_lookup) | |
340 | memcpy(new_arr, old_arr, | |
341 | ((psli->last_iotag + 1) * | |
342 | sizeof (struct lpfc_iocbq *))); | |
343 | psli->iocbq_lookup = new_arr; | |
344 | psli->iocbq_lookup_len = new_len; | |
345 | psli->last_iotag = iotag; | |
346 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 347 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
348 | iocbq->iotag = iotag; |
349 | kfree(old_arr); | |
350 | return iotag; | |
351 | } | |
8f6d98d2 | 352 | } else |
2e0fef85 | 353 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 354 | |
604a3e30 JB |
355 | lpfc_printf_log(phba, KERN_ERR,LOG_SLI, |
356 | "%d:0318 Failed to allocate IOTAG.last IOTAG is %d\n", | |
357 | phba->brd_no, psli->last_iotag); | |
dea3101e | 358 | |
604a3e30 | 359 | return 0; |
dea3101e JB |
360 | } |
361 | ||
362 | static void | |
363 | lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
364 | IOCB_t *iocb, struct lpfc_iocbq *nextiocb) | |
365 | { | |
366 | /* | |
604a3e30 | 367 | * Set up an iotag |
dea3101e | 368 | */ |
604a3e30 | 369 | nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0; |
dea3101e JB |
370 | |
371 | /* | |
372 | * Issue iocb command to adapter | |
373 | */ | |
374 | lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, sizeof (IOCB_t)); | |
375 | wmb(); | |
376 | pring->stats.iocb_cmd++; | |
377 | ||
378 | /* | |
379 | * If there is no completion routine to call, we can release the | |
380 | * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF, | |
381 | * that have no rsp ring completion, iocb_cmpl MUST be NULL. | |
382 | */ | |
383 | if (nextiocb->iocb_cmpl) | |
384 | lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb); | |
604a3e30 | 385 | else |
2e0fef85 | 386 | __lpfc_sli_release_iocbq(phba, nextiocb); |
dea3101e JB |
387 | |
388 | /* | |
389 | * Let the HBA know what IOCB slot will be the next one the | |
390 | * driver will put a command into. | |
391 | */ | |
392 | pring->cmdidx = pring->next_cmdidx; | |
f91b392c | 393 | writel(pring->cmdidx, phba->MBslimaddr |
dea3101e JB |
394 | + (SLIMOFF + (pring->ringno * 2)) * 4); |
395 | } | |
396 | ||
397 | static void | |
2e0fef85 | 398 | lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e JB |
399 | { |
400 | int ringno = pring->ringno; | |
401 | ||
402 | pring->flag |= LPFC_CALL_RING_AVAILABLE; | |
403 | ||
404 | wmb(); | |
405 | ||
406 | /* | |
407 | * Set ring 'ringno' to SET R0CE_REQ in Chip Att register. | |
408 | * The HBA will tell us when an IOCB entry is available. | |
409 | */ | |
410 | writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr); | |
411 | readl(phba->CAregaddr); /* flush */ | |
412 | ||
413 | pring->stats.iocb_cmd_full++; | |
414 | } | |
415 | ||
416 | static void | |
2e0fef85 | 417 | lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e JB |
418 | { |
419 | int ringno = pring->ringno; | |
420 | ||
421 | /* | |
422 | * Tell the HBA that there is work to do in this ring. | |
423 | */ | |
424 | wmb(); | |
425 | writel(CA_R0ATT << (ringno * 4), phba->CAregaddr); | |
426 | readl(phba->CAregaddr); /* flush */ | |
427 | } | |
428 | ||
429 | static void | |
2e0fef85 | 430 | lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e JB |
431 | { |
432 | IOCB_t *iocb; | |
433 | struct lpfc_iocbq *nextiocb; | |
434 | ||
435 | /* | |
436 | * Check to see if: | |
437 | * (a) there is anything on the txq to send | |
438 | * (b) link is up | |
439 | * (c) link attention events can be processed (fcp ring only) | |
440 | * (d) IOCB processing is not blocked by the outstanding mbox command. | |
441 | */ | |
442 | if (pring->txq_cnt && | |
2e0fef85 | 443 | lpfc_is_link_up(phba) && |
dea3101e JB |
444 | (pring->ringno != phba->sli.fcp_ring || |
445 | phba->sli.sli_flag & LPFC_PROCESS_LA) && | |
446 | !(pring->flag & LPFC_STOP_IOCB_MBX)) { | |
447 | ||
448 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && | |
449 | (nextiocb = lpfc_sli_ringtx_get(phba, pring))) | |
450 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
451 | ||
452 | if (iocb) | |
453 | lpfc_sli_update_ring(phba, pring); | |
454 | else | |
455 | lpfc_sli_update_full_ring(phba, pring); | |
456 | } | |
457 | ||
458 | return; | |
459 | } | |
460 | ||
461 | /* lpfc_sli_turn_on_ring is only called by lpfc_sli_handle_mb_event below */ | |
462 | static void | |
2e0fef85 | 463 | lpfc_sli_turn_on_ring(struct lpfc_hba *phba, int ringno) |
dea3101e | 464 | { |
2e0fef85 JS |
465 | struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[ringno]; |
466 | unsigned long iflags; | |
dea3101e JB |
467 | |
468 | /* If the ring is active, flag it */ | |
2e0fef85 | 469 | spin_lock_irqsave(&phba->hbalock, iflags); |
dea3101e JB |
470 | if (phba->sli.ring[ringno].cmdringaddr) { |
471 | if (phba->sli.ring[ringno].flag & LPFC_STOP_IOCB_MBX) { | |
472 | phba->sli.ring[ringno].flag &= ~LPFC_STOP_IOCB_MBX; | |
473 | /* | |
474 | * Force update of the local copy of cmdGetInx | |
475 | */ | |
476 | phba->sli.ring[ringno].local_getidx | |
477 | = le32_to_cpu(pgp->cmdGetInx); | |
dea3101e | 478 | lpfc_sli_resume_iocb(phba, &phba->sli.ring[ringno]); |
dea3101e JB |
479 | } |
480 | } | |
2e0fef85 | 481 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
dea3101e JB |
482 | } |
483 | ||
484 | static int | |
485 | lpfc_sli_chk_mbx_command(uint8_t mbxCommand) | |
486 | { | |
487 | uint8_t ret; | |
488 | ||
489 | switch (mbxCommand) { | |
490 | case MBX_LOAD_SM: | |
491 | case MBX_READ_NV: | |
492 | case MBX_WRITE_NV: | |
493 | case MBX_RUN_BIU_DIAG: | |
494 | case MBX_INIT_LINK: | |
495 | case MBX_DOWN_LINK: | |
496 | case MBX_CONFIG_LINK: | |
497 | case MBX_CONFIG_RING: | |
498 | case MBX_RESET_RING: | |
499 | case MBX_READ_CONFIG: | |
500 | case MBX_READ_RCONFIG: | |
501 | case MBX_READ_SPARM: | |
502 | case MBX_READ_STATUS: | |
503 | case MBX_READ_RPI: | |
504 | case MBX_READ_XRI: | |
505 | case MBX_READ_REV: | |
506 | case MBX_READ_LNK_STAT: | |
507 | case MBX_REG_LOGIN: | |
508 | case MBX_UNREG_LOGIN: | |
509 | case MBX_READ_LA: | |
510 | case MBX_CLEAR_LA: | |
511 | case MBX_DUMP_MEMORY: | |
512 | case MBX_DUMP_CONTEXT: | |
513 | case MBX_RUN_DIAGS: | |
514 | case MBX_RESTART: | |
515 | case MBX_UPDATE_CFG: | |
516 | case MBX_DOWN_LOAD: | |
517 | case MBX_DEL_LD_ENTRY: | |
518 | case MBX_RUN_PROGRAM: | |
519 | case MBX_SET_MASK: | |
520 | case MBX_SET_SLIM: | |
521 | case MBX_UNREG_D_ID: | |
41415862 | 522 | case MBX_KILL_BOARD: |
dea3101e | 523 | case MBX_CONFIG_FARP: |
41415862 | 524 | case MBX_BEACON: |
dea3101e JB |
525 | case MBX_LOAD_AREA: |
526 | case MBX_RUN_BIU_DIAG64: | |
527 | case MBX_CONFIG_PORT: | |
528 | case MBX_READ_SPARM64: | |
529 | case MBX_READ_RPI64: | |
530 | case MBX_REG_LOGIN64: | |
531 | case MBX_READ_LA64: | |
532 | case MBX_FLASH_WR_ULA: | |
533 | case MBX_SET_DEBUG: | |
534 | case MBX_LOAD_EXP_ROM: | |
535 | ret = mbxCommand; | |
536 | break; | |
537 | default: | |
538 | ret = MBX_SHUTDOWN; | |
539 | break; | |
540 | } | |
2e0fef85 | 541 | return ret; |
dea3101e JB |
542 | } |
543 | static void | |
2e0fef85 | 544 | lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) |
dea3101e JB |
545 | { |
546 | wait_queue_head_t *pdone_q; | |
547 | ||
548 | /* | |
549 | * If pdone_q is empty, the driver thread gave up waiting and | |
550 | * continued running. | |
551 | */ | |
7054a606 | 552 | pmboxq->mbox_flag |= LPFC_MBX_WAKE; |
dea3101e JB |
553 | pdone_q = (wait_queue_head_t *) pmboxq->context1; |
554 | if (pdone_q) | |
555 | wake_up_interruptible(pdone_q); | |
556 | return; | |
557 | } | |
558 | ||
559 | void | |
2e0fef85 | 560 | lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
dea3101e JB |
561 | { |
562 | struct lpfc_dmabuf *mp; | |
7054a606 JS |
563 | uint16_t rpi; |
564 | int rc; | |
565 | ||
dea3101e | 566 | mp = (struct lpfc_dmabuf *) (pmb->context1); |
7054a606 | 567 | |
dea3101e JB |
568 | if (mp) { |
569 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
570 | kfree(mp); | |
571 | } | |
7054a606 JS |
572 | |
573 | /* | |
574 | * If a REG_LOGIN succeeded after node is destroyed or node | |
575 | * is in re-discovery driver need to cleanup the RPI. | |
576 | */ | |
2e0fef85 JS |
577 | if (!(phba->pport->load_flag & FC_UNLOADING) && |
578 | pmb->mb.mbxCommand == MBX_REG_LOGIN64 && | |
579 | !pmb->mb.mbxStatus) { | |
7054a606 JS |
580 | |
581 | rpi = pmb->mb.un.varWords[0]; | |
582 | lpfc_unreg_login(phba, rpi, pmb); | |
583 | pmb->mbox_cmpl=lpfc_sli_def_mbox_cmpl; | |
584 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
585 | if (rc != MBX_NOT_FINISHED) | |
586 | return; | |
587 | } | |
588 | ||
2e0fef85 | 589 | mempool_free(pmb, phba->mbox_mem_pool); |
dea3101e JB |
590 | return; |
591 | } | |
592 | ||
593 | int | |
2e0fef85 | 594 | lpfc_sli_handle_mb_event(struct lpfc_hba *phba) |
dea3101e | 595 | { |
2e0fef85 | 596 | MAILBOX_t *mbox, *pmbox; |
dea3101e | 597 | LPFC_MBOXQ_t *pmb; |
dea3101e JB |
598 | int i, rc; |
599 | uint32_t process_next; | |
2e0fef85 | 600 | unsigned long iflags; |
dea3101e | 601 | |
dea3101e JB |
602 | /* We should only get here if we are in SLI2 mode */ |
603 | if (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE)) { | |
2e0fef85 | 604 | return 1; |
dea3101e JB |
605 | } |
606 | ||
607 | phba->sli.slistat.mbox_event++; | |
608 | ||
609 | /* Get a Mailbox buffer to setup mailbox commands for callback */ | |
610 | if ((pmb = phba->sli.mbox_active)) { | |
611 | pmbox = &pmb->mb; | |
4cc2da1d | 612 | mbox = &phba->slim2p->mbx; |
dea3101e JB |
613 | |
614 | /* First check out the status word */ | |
615 | lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof (uint32_t)); | |
616 | ||
617 | /* Sanity check to ensure the host owns the mailbox */ | |
618 | if (pmbox->mbxOwner != OWN_HOST) { | |
619 | /* Lets try for a while */ | |
620 | for (i = 0; i < 10240; i++) { | |
621 | /* First copy command data */ | |
622 | lpfc_sli_pcimem_bcopy(mbox, pmbox, | |
623 | sizeof (uint32_t)); | |
624 | if (pmbox->mbxOwner == OWN_HOST) | |
625 | goto mbout; | |
626 | } | |
627 | /* Stray Mailbox Interrupt, mbxCommand <cmd> mbxStatus | |
628 | <status> */ | |
629 | lpfc_printf_log(phba, | |
b4c02652 | 630 | KERN_WARNING, |
dea3101e JB |
631 | LOG_MBOX | LOG_SLI, |
632 | "%d:0304 Stray Mailbox Interrupt " | |
633 | "mbxCommand x%x mbxStatus x%x\n", | |
634 | phba->brd_no, | |
635 | pmbox->mbxCommand, | |
636 | pmbox->mbxStatus); | |
637 | ||
2e0fef85 | 638 | spin_lock_irq(&phba->hbalock); |
dea3101e | 639 | phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 JS |
640 | spin_unlock_irq(&phba->hbalock); |
641 | return 1; | |
dea3101e JB |
642 | } |
643 | ||
644 | mbout: | |
645 | del_timer_sync(&phba->sli.mbox_tmo); | |
2e0fef85 JS |
646 | |
647 | spin_lock_irqsave(&phba->pport->work_port_lock, iflags); | |
648 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; | |
649 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags); | |
dea3101e JB |
650 | |
651 | /* | |
652 | * It is a fatal error if unknown mbox command completion. | |
653 | */ | |
654 | if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) == | |
655 | MBX_SHUTDOWN) { | |
656 | ||
657 | /* Unknow mailbox command compl */ | |
658 | lpfc_printf_log(phba, | |
659 | KERN_ERR, | |
660 | LOG_MBOX | LOG_SLI, | |
661 | "%d:0323 Unknown Mailbox command %x Cmpl\n", | |
662 | phba->brd_no, | |
663 | pmbox->mbxCommand); | |
2e0fef85 | 664 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e JB |
665 | phba->work_hs = HS_FFER3; |
666 | lpfc_handle_eratt(phba); | |
2e0fef85 | 667 | return 0; |
dea3101e JB |
668 | } |
669 | ||
670 | phba->sli.mbox_active = NULL; | |
671 | if (pmbox->mbxStatus) { | |
672 | phba->sli.slistat.mbox_stat_err++; | |
673 | if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) { | |
674 | /* Mbox cmd cmpl error - RETRYing */ | |
675 | lpfc_printf_log(phba, | |
676 | KERN_INFO, | |
677 | LOG_MBOX | LOG_SLI, | |
678 | "%d:0305 Mbox cmd cmpl error - " | |
679 | "RETRYing Data: x%x x%x x%x x%x\n", | |
680 | phba->brd_no, | |
681 | pmbox->mbxCommand, | |
682 | pmbox->mbxStatus, | |
683 | pmbox->un.varWords[0], | |
2e0fef85 | 684 | phba->pport->port_state); |
dea3101e JB |
685 | pmbox->mbxStatus = 0; |
686 | pmbox->mbxOwner = OWN_HOST; | |
2e0fef85 | 687 | spin_lock_irq(&phba->hbalock); |
dea3101e | 688 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 689 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
690 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
691 | if (rc == MBX_SUCCESS) | |
2e0fef85 | 692 | return 0; |
dea3101e JB |
693 | } |
694 | } | |
695 | ||
696 | /* Mailbox cmd <cmd> Cmpl <cmpl> */ | |
697 | lpfc_printf_log(phba, | |
698 | KERN_INFO, | |
699 | LOG_MBOX | LOG_SLI, | |
700 | "%d:0307 Mailbox cmd x%x Cmpl x%p " | |
701 | "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n", | |
702 | phba->brd_no, | |
703 | pmbox->mbxCommand, | |
704 | pmb->mbox_cmpl, | |
705 | *((uint32_t *) pmbox), | |
706 | pmbox->un.varWords[0], | |
707 | pmbox->un.varWords[1], | |
708 | pmbox->un.varWords[2], | |
709 | pmbox->un.varWords[3], | |
710 | pmbox->un.varWords[4], | |
711 | pmbox->un.varWords[5], | |
712 | pmbox->un.varWords[6], | |
713 | pmbox->un.varWords[7]); | |
714 | ||
715 | if (pmb->mbox_cmpl) { | |
716 | lpfc_sli_pcimem_bcopy(mbox, pmbox, MAILBOX_CMD_SIZE); | |
717 | pmb->mbox_cmpl(phba,pmb); | |
718 | } | |
719 | } | |
720 | ||
721 | ||
722 | do { | |
723 | process_next = 0; /* by default don't loop */ | |
2e0fef85 | 724 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
725 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
726 | ||
727 | /* Process next mailbox command if there is one */ | |
728 | if ((pmb = lpfc_mbox_get(phba))) { | |
2e0fef85 | 729 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
730 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
731 | if (rc == MBX_NOT_FINISHED) { | |
732 | pmb->mb.mbxStatus = MBX_NOT_FINISHED; | |
733 | pmb->mbox_cmpl(phba,pmb); | |
734 | process_next = 1; | |
735 | continue; /* loop back */ | |
736 | } | |
737 | } else { | |
2e0fef85 | 738 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 739 | /* Turn on IOCB processing */ |
1dcb58e5 | 740 | for (i = 0; i < phba->sli.num_rings; i++) |
dea3101e | 741 | lpfc_sli_turn_on_ring(phba, i); |
dea3101e JB |
742 | } |
743 | ||
744 | } while (process_next); | |
745 | ||
2e0fef85 | 746 | return 0; |
dea3101e JB |
747 | } |
748 | static int | |
749 | lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
750 | struct lpfc_iocbq *saveq) | |
751 | { | |
752 | IOCB_t * irsp; | |
753 | WORD5 * w5p; | |
754 | uint32_t Rctl, Type; | |
755 | uint32_t match, i; | |
756 | ||
757 | match = 0; | |
758 | irsp = &(saveq->iocb); | |
759 | if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) | |
760 | || (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX)) { | |
761 | Rctl = FC_ELS_REQ; | |
762 | Type = FC_ELS_DATA; | |
763 | } else { | |
764 | w5p = | |
765 | (WORD5 *) & (saveq->iocb.un. | |
766 | ulpWord[5]); | |
767 | Rctl = w5p->hcsw.Rctl; | |
768 | Type = w5p->hcsw.Type; | |
769 | ||
770 | /* Firmware Workaround */ | |
771 | if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) && | |
772 | (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX)) { | |
773 | Rctl = FC_ELS_REQ; | |
774 | Type = FC_ELS_DATA; | |
775 | w5p->hcsw.Rctl = Rctl; | |
776 | w5p->hcsw.Type = Type; | |
777 | } | |
778 | } | |
779 | /* unSolicited Responses */ | |
780 | if (pring->prt[0].profile) { | |
cf5bf97e JW |
781 | if (pring->prt[0].lpfc_sli_rcv_unsol_event) |
782 | (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring, | |
783 | saveq); | |
dea3101e JB |
784 | match = 1; |
785 | } else { | |
786 | /* We must search, based on rctl / type | |
787 | for the right routine */ | |
788 | for (i = 0; i < pring->num_mask; | |
789 | i++) { | |
790 | if ((pring->prt[i].rctl == | |
791 | Rctl) | |
792 | && (pring->prt[i]. | |
793 | type == Type)) { | |
cf5bf97e JW |
794 | if (pring->prt[i].lpfc_sli_rcv_unsol_event) |
795 | (pring->prt[i].lpfc_sli_rcv_unsol_event) | |
796 | (phba, pring, saveq); | |
dea3101e JB |
797 | match = 1; |
798 | break; | |
799 | } | |
800 | } | |
801 | } | |
802 | if (match == 0) { | |
803 | /* Unexpected Rctl / Type received */ | |
804 | /* Ring <ringno> handler: unexpected | |
805 | Rctl <Rctl> Type <Type> received */ | |
806 | lpfc_printf_log(phba, | |
807 | KERN_WARNING, | |
808 | LOG_SLI, | |
809 | "%d:0313 Ring %d handler: unexpected Rctl x%x " | |
810 | "Type x%x received \n", | |
811 | phba->brd_no, | |
812 | pring->ringno, | |
813 | Rctl, | |
814 | Type); | |
815 | } | |
816 | return(1); | |
817 | } | |
818 | ||
819 | static struct lpfc_iocbq * | |
2e0fef85 JS |
820 | lpfc_sli_iocbq_lookup(struct lpfc_hba *phba, |
821 | struct lpfc_sli_ring *pring, | |
822 | struct lpfc_iocbq *prspiocb) | |
dea3101e | 823 | { |
dea3101e JB |
824 | struct lpfc_iocbq *cmd_iocb = NULL; |
825 | uint16_t iotag; | |
826 | ||
604a3e30 JB |
827 | iotag = prspiocb->iocb.ulpIoTag; |
828 | ||
829 | if (iotag != 0 && iotag <= phba->sli.last_iotag) { | |
830 | cmd_iocb = phba->sli.iocbq_lookup[iotag]; | |
831 | list_del(&cmd_iocb->list); | |
832 | pring->txcmplq_cnt--; | |
833 | return cmd_iocb; | |
dea3101e JB |
834 | } |
835 | ||
dea3101e | 836 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
604a3e30 JB |
837 | "%d:0317 iotag x%x is out off " |
838 | "range: max iotag x%x wd0 x%x\n", | |
839 | phba->brd_no, iotag, | |
840 | phba->sli.last_iotag, | |
841 | *(((uint32_t *) &prspiocb->iocb) + 7)); | |
dea3101e JB |
842 | return NULL; |
843 | } | |
844 | ||
845 | static int | |
2e0fef85 | 846 | lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
dea3101e JB |
847 | struct lpfc_iocbq *saveq) |
848 | { | |
2e0fef85 | 849 | struct lpfc_iocbq *cmdiocbp; |
dea3101e JB |
850 | int rc = 1; |
851 | unsigned long iflag; | |
852 | ||
853 | /* Based on the iotag field, get the cmd IOCB from the txcmplq */ | |
2e0fef85 | 854 | spin_lock_irqsave(&phba->hbalock, iflag); |
604a3e30 | 855 | cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq); |
2e0fef85 JS |
856 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
857 | ||
dea3101e JB |
858 | if (cmdiocbp) { |
859 | if (cmdiocbp->iocb_cmpl) { | |
860 | /* | |
861 | * Post all ELS completions to the worker thread. | |
862 | * All other are passed to the completion callback. | |
863 | */ | |
864 | if (pring->ringno == LPFC_ELS_RING) { | |
07951076 JS |
865 | if (cmdiocbp->iocb_flag & LPFC_DRIVER_ABORTED) { |
866 | cmdiocbp->iocb_flag &= | |
867 | ~LPFC_DRIVER_ABORTED; | |
868 | saveq->iocb.ulpStatus = | |
869 | IOSTAT_LOCAL_REJECT; | |
870 | saveq->iocb.un.ulpWord[4] = | |
871 | IOERR_SLI_ABORTED; | |
872 | } | |
dea3101e | 873 | } |
2e0fef85 | 874 | (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq); |
604a3e30 JB |
875 | } else |
876 | lpfc_sli_release_iocbq(phba, cmdiocbp); | |
dea3101e JB |
877 | } else { |
878 | /* | |
879 | * Unknown initiating command based on the response iotag. | |
880 | * This could be the case on the ELS ring because of | |
881 | * lpfc_els_abort(). | |
882 | */ | |
883 | if (pring->ringno != LPFC_ELS_RING) { | |
884 | /* | |
885 | * Ring <ringno> handler: unexpected completion IoTag | |
886 | * <IoTag> | |
887 | */ | |
888 | lpfc_printf_log(phba, | |
889 | KERN_WARNING, | |
890 | LOG_SLI, | |
891 | "%d:0322 Ring %d handler: unexpected " | |
892 | "completion IoTag x%x Data: x%x x%x x%x x%x\n", | |
893 | phba->brd_no, | |
894 | pring->ringno, | |
895 | saveq->iocb.ulpIoTag, | |
896 | saveq->iocb.ulpStatus, | |
897 | saveq->iocb.un.ulpWord[4], | |
898 | saveq->iocb.ulpCommand, | |
899 | saveq->iocb.ulpContext); | |
900 | } | |
901 | } | |
68876920 | 902 | |
dea3101e JB |
903 | return rc; |
904 | } | |
905 | ||
2e0fef85 JS |
906 | static void |
907 | lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
875fbdfe JSEC |
908 | { |
909 | struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno]; | |
910 | /* | |
911 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger then | |
912 | * rsp ring <portRspMax> | |
913 | */ | |
914 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
915 | "%d:0312 Ring %d handler: portRspPut %d " | |
916 | "is bigger then rsp ring %d\n", | |
917 | phba->brd_no, pring->ringno, | |
918 | le32_to_cpu(pgp->rspPutInx), | |
919 | pring->numRiocb); | |
920 | ||
2e0fef85 | 921 | phba->link_state = LPFC_HBA_ERROR; |
875fbdfe JSEC |
922 | |
923 | /* | |
924 | * All error attention handlers are posted to | |
925 | * worker thread | |
926 | */ | |
927 | phba->work_ha |= HA_ERATT; | |
928 | phba->work_hs = HS_FFER3; | |
929 | if (phba->work_wait) | |
930 | wake_up(phba->work_wait); | |
931 | ||
932 | return; | |
933 | } | |
934 | ||
2e0fef85 | 935 | void lpfc_sli_poll_fcp_ring(struct lpfc_hba *phba) |
875fbdfe | 936 | { |
2e0fef85 JS |
937 | struct lpfc_sli *psli = &phba->sli; |
938 | struct lpfc_sli_ring *pring = &psli->ring[LPFC_FCP_RING]; | |
875fbdfe JSEC |
939 | IOCB_t *irsp = NULL; |
940 | IOCB_t *entry = NULL; | |
941 | struct lpfc_iocbq *cmdiocbq = NULL; | |
942 | struct lpfc_iocbq rspiocbq; | |
943 | struct lpfc_pgp *pgp; | |
944 | uint32_t status; | |
945 | uint32_t portRspPut, portRspMax; | |
946 | int type; | |
947 | uint32_t rsp_cmpl = 0; | |
948 | void __iomem *to_slim; | |
949 | uint32_t ha_copy; | |
2e0fef85 | 950 | unsigned long iflags; |
875fbdfe JSEC |
951 | |
952 | pring->stats.iocb_event++; | |
953 | ||
954 | /* The driver assumes SLI-2 mode */ | |
955 | pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno]; | |
956 | ||
957 | /* | |
958 | * The next available response entry should never exceed the maximum | |
959 | * entries. If it does, treat it as an adapter hardware error. | |
960 | */ | |
961 | portRspMax = pring->numRiocb; | |
962 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
963 | if (unlikely(portRspPut >= portRspMax)) { | |
964 | lpfc_sli_rsp_pointers_error(phba, pring); | |
965 | return; | |
966 | } | |
967 | ||
968 | rmb(); | |
969 | while (pring->rspidx != portRspPut) { | |
970 | ||
971 | entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx); | |
972 | ||
973 | if (++pring->rspidx >= portRspMax) | |
974 | pring->rspidx = 0; | |
975 | ||
976 | lpfc_sli_pcimem_bcopy((uint32_t *) entry, | |
977 | (uint32_t *) &rspiocbq.iocb, | |
2e0fef85 | 978 | sizeof(IOCB_t)); |
875fbdfe JSEC |
979 | irsp = &rspiocbq.iocb; |
980 | type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); | |
981 | pring->stats.iocb_rsp++; | |
982 | rsp_cmpl++; | |
983 | ||
984 | if (unlikely(irsp->ulpStatus)) { | |
985 | /* Rsp ring <ringno> error: IOCB */ | |
986 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
987 | "%d:0326 Rsp Ring %d error: IOCB Data: " | |
988 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", | |
989 | phba->brd_no, pring->ringno, | |
990 | irsp->un.ulpWord[0], | |
991 | irsp->un.ulpWord[1], | |
992 | irsp->un.ulpWord[2], | |
993 | irsp->un.ulpWord[3], | |
994 | irsp->un.ulpWord[4], | |
995 | irsp->un.ulpWord[5], | |
996 | *(((uint32_t *) irsp) + 6), | |
997 | *(((uint32_t *) irsp) + 7)); | |
998 | } | |
999 | ||
1000 | switch (type) { | |
1001 | case LPFC_ABORT_IOCB: | |
1002 | case LPFC_SOL_IOCB: | |
1003 | /* | |
1004 | * Idle exchange closed via ABTS from port. No iocb | |
1005 | * resources need to be recovered. | |
1006 | */ | |
1007 | if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { | |
dca9479b JS |
1008 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
1009 | "%d:0314 IOCB cmd 0x%x" | |
1010 | " processed. Skipping" | |
1011 | " completion", phba->brd_no, | |
1012 | irsp->ulpCommand); | |
875fbdfe JSEC |
1013 | break; |
1014 | } | |
1015 | ||
2e0fef85 | 1016 | spin_lock_irqsave(&phba->hbalock, iflags); |
875fbdfe JSEC |
1017 | cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, |
1018 | &rspiocbq); | |
2e0fef85 | 1019 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
875fbdfe JSEC |
1020 | if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { |
1021 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, | |
1022 | &rspiocbq); | |
1023 | } | |
1024 | break; | |
1025 | default: | |
1026 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
1027 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
1028 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
1029 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
1030 | MAX_MSG_DATA); | |
1031 | dev_warn(&((phba->pcidev)->dev), "lpfc%d: %s", | |
1032 | phba->brd_no, adaptermsg); | |
1033 | } else { | |
1034 | /* Unknown IOCB command */ | |
1035 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
1036 | "%d:0321 Unknown IOCB command " | |
1037 | "Data: x%x, x%x x%x x%x x%x\n", | |
1038 | phba->brd_no, type, | |
1039 | irsp->ulpCommand, | |
1040 | irsp->ulpStatus, | |
1041 | irsp->ulpIoTag, | |
1042 | irsp->ulpContext); | |
1043 | } | |
1044 | break; | |
1045 | } | |
1046 | ||
1047 | /* | |
1048 | * The response IOCB has been processed. Update the ring | |
1049 | * pointer in SLIM. If the port response put pointer has not | |
1050 | * been updated, sync the pgp->rspPutInx and fetch the new port | |
1051 | * response put pointer. | |
1052 | */ | |
1053 | to_slim = phba->MBslimaddr + | |
1054 | (SLIMOFF + (pring->ringno * 2) + 1) * 4; | |
1055 | writeb(pring->rspidx, to_slim); | |
1056 | ||
1057 | if (pring->rspidx == portRspPut) | |
1058 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1059 | } | |
1060 | ||
1061 | ha_copy = readl(phba->HAregaddr); | |
1062 | ha_copy >>= (LPFC_FCP_RING * 4); | |
1063 | ||
1064 | if ((rsp_cmpl > 0) && (ha_copy & HA_R0RE_REQ)) { | |
2e0fef85 | 1065 | spin_lock_irqsave(&phba->hbalock, iflags); |
875fbdfe JSEC |
1066 | pring->stats.iocb_rsp_full++; |
1067 | status = ((CA_R0ATT | CA_R0RE_RSP) << (LPFC_FCP_RING * 4)); | |
1068 | writel(status, phba->CAregaddr); | |
1069 | readl(phba->CAregaddr); | |
2e0fef85 | 1070 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
875fbdfe JSEC |
1071 | } |
1072 | if ((ha_copy & HA_R0CE_RSP) && | |
1073 | (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2e0fef85 | 1074 | spin_lock_irqsave(&phba->hbalock, iflags); |
875fbdfe JSEC |
1075 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; |
1076 | pring->stats.iocb_cmd_empty++; | |
1077 | ||
1078 | /* Force update of the local copy of cmdGetInx */ | |
1079 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
1080 | lpfc_sli_resume_iocb(phba, pring); | |
1081 | ||
1082 | if ((pring->lpfc_sli_cmd_available)) | |
1083 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
1084 | ||
2e0fef85 | 1085 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
875fbdfe JSEC |
1086 | } |
1087 | ||
1088 | return; | |
1089 | } | |
1090 | ||
dea3101e JB |
1091 | /* |
1092 | * This routine presumes LPFC_FCP_RING handling and doesn't bother | |
1093 | * to check it explicitly. | |
1094 | */ | |
1095 | static int | |
2e0fef85 JS |
1096 | lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba, |
1097 | struct lpfc_sli_ring *pring, uint32_t mask) | |
dea3101e | 1098 | { |
2e0fef85 | 1099 | struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno]; |
dea3101e | 1100 | IOCB_t *irsp = NULL; |
87f6eaff | 1101 | IOCB_t *entry = NULL; |
dea3101e JB |
1102 | struct lpfc_iocbq *cmdiocbq = NULL; |
1103 | struct lpfc_iocbq rspiocbq; | |
dea3101e JB |
1104 | uint32_t status; |
1105 | uint32_t portRspPut, portRspMax; | |
1106 | int rc = 1; | |
1107 | lpfc_iocb_type type; | |
1108 | unsigned long iflag; | |
1109 | uint32_t rsp_cmpl = 0; | |
2e0fef85 | 1110 | void __iomem *to_slim; |
dea3101e | 1111 | |
2e0fef85 | 1112 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e JB |
1113 | pring->stats.iocb_event++; |
1114 | ||
dea3101e JB |
1115 | /* |
1116 | * The next available response entry should never exceed the maximum | |
1117 | * entries. If it does, treat it as an adapter hardware error. | |
1118 | */ | |
1119 | portRspMax = pring->numRiocb; | |
1120 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1121 | if (unlikely(portRspPut >= portRspMax)) { | |
875fbdfe | 1122 | lpfc_sli_rsp_pointers_error(phba, pring); |
2e0fef85 | 1123 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e JB |
1124 | return 1; |
1125 | } | |
1126 | ||
1127 | rmb(); | |
1128 | while (pring->rspidx != portRspPut) { | |
87f6eaff JSEC |
1129 | /* |
1130 | * Fetch an entry off the ring and copy it into a local data | |
1131 | * structure. The copy involves a byte-swap since the | |
1132 | * network byte order and pci byte orders are different. | |
1133 | */ | |
4a0dfcde | 1134 | entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx); |
875fbdfe JSEC |
1135 | |
1136 | if (++pring->rspidx >= portRspMax) | |
1137 | pring->rspidx = 0; | |
1138 | ||
87f6eaff JSEC |
1139 | lpfc_sli_pcimem_bcopy((uint32_t *) entry, |
1140 | (uint32_t *) &rspiocbq.iocb, | |
2e0fef85 | 1141 | sizeof(IOCB_t)); |
a4bc3379 | 1142 | INIT_LIST_HEAD(&(rspiocbq.list)); |
87f6eaff JSEC |
1143 | irsp = &rspiocbq.iocb; |
1144 | ||
dea3101e JB |
1145 | type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); |
1146 | pring->stats.iocb_rsp++; | |
1147 | rsp_cmpl++; | |
1148 | ||
1149 | if (unlikely(irsp->ulpStatus)) { | |
1150 | /* Rsp ring <ringno> error: IOCB */ | |
1151 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
dca9479b | 1152 | "%d:0336 Rsp Ring %d error: IOCB Data: " |
dea3101e JB |
1153 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", |
1154 | phba->brd_no, pring->ringno, | |
1155 | irsp->un.ulpWord[0], irsp->un.ulpWord[1], | |
1156 | irsp->un.ulpWord[2], irsp->un.ulpWord[3], | |
1157 | irsp->un.ulpWord[4], irsp->un.ulpWord[5], | |
1158 | *(((uint32_t *) irsp) + 6), | |
1159 | *(((uint32_t *) irsp) + 7)); | |
1160 | } | |
1161 | ||
1162 | switch (type) { | |
1163 | case LPFC_ABORT_IOCB: | |
1164 | case LPFC_SOL_IOCB: | |
1165 | /* | |
1166 | * Idle exchange closed via ABTS from port. No iocb | |
1167 | * resources need to be recovered. | |
1168 | */ | |
1169 | if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { | |
dca9479b JS |
1170 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
1171 | "%d:0333 IOCB cmd 0x%x" | |
1172 | " processed. Skipping" | |
1173 | " completion\n", phba->brd_no, | |
1174 | irsp->ulpCommand); | |
dea3101e JB |
1175 | break; |
1176 | } | |
1177 | ||
604a3e30 JB |
1178 | cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, |
1179 | &rspiocbq); | |
dea3101e | 1180 | if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { |
b808608b JW |
1181 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { |
1182 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, | |
1183 | &rspiocbq); | |
1184 | } else { | |
2e0fef85 JS |
1185 | spin_unlock_irqrestore(&phba->hbalock, |
1186 | iflag); | |
b808608b JW |
1187 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, |
1188 | &rspiocbq); | |
2e0fef85 | 1189 | spin_lock_irqsave(&phba->hbalock, |
b808608b JW |
1190 | iflag); |
1191 | } | |
dea3101e JB |
1192 | } |
1193 | break; | |
a4bc3379 | 1194 | case LPFC_UNSOL_IOCB: |
2e0fef85 | 1195 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
a4bc3379 | 1196 | lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq); |
2e0fef85 | 1197 | spin_lock_irqsave(&phba->hbalock, iflag); |
a4bc3379 | 1198 | break; |
dea3101e JB |
1199 | default: |
1200 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
1201 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
1202 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
1203 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
1204 | MAX_MSG_DATA); | |
1205 | dev_warn(&((phba->pcidev)->dev), "lpfc%d: %s", | |
1206 | phba->brd_no, adaptermsg); | |
1207 | } else { | |
1208 | /* Unknown IOCB command */ | |
1209 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
dca9479b | 1210 | "%d:0334 Unknown IOCB command " |
dea3101e JB |
1211 | "Data: x%x, x%x x%x x%x x%x\n", |
1212 | phba->brd_no, type, irsp->ulpCommand, | |
1213 | irsp->ulpStatus, irsp->ulpIoTag, | |
1214 | irsp->ulpContext); | |
1215 | } | |
1216 | break; | |
1217 | } | |
1218 | ||
1219 | /* | |
1220 | * The response IOCB has been processed. Update the ring | |
1221 | * pointer in SLIM. If the port response put pointer has not | |
1222 | * been updated, sync the pgp->rspPutInx and fetch the new port | |
1223 | * response put pointer. | |
1224 | */ | |
dea3101e JB |
1225 | to_slim = phba->MBslimaddr + |
1226 | (SLIMOFF + (pring->ringno * 2) + 1) * 4; | |
f91b392c | 1227 | writel(pring->rspidx, to_slim); |
dea3101e JB |
1228 | |
1229 | if (pring->rspidx == portRspPut) | |
1230 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1231 | } | |
1232 | ||
1233 | if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) { | |
1234 | pring->stats.iocb_rsp_full++; | |
1235 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
1236 | writel(status, phba->CAregaddr); | |
1237 | readl(phba->CAregaddr); | |
1238 | } | |
1239 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
1240 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
1241 | pring->stats.iocb_cmd_empty++; | |
1242 | ||
1243 | /* Force update of the local copy of cmdGetInx */ | |
1244 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
1245 | lpfc_sli_resume_iocb(phba, pring); | |
1246 | ||
1247 | if ((pring->lpfc_sli_cmd_available)) | |
1248 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
1249 | ||
1250 | } | |
1251 | ||
2e0fef85 | 1252 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e JB |
1253 | return rc; |
1254 | } | |
1255 | ||
1256 | ||
1257 | int | |
2e0fef85 JS |
1258 | lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba, |
1259 | struct lpfc_sli_ring *pring, uint32_t mask) | |
dea3101e | 1260 | { |
2e0fef85 | 1261 | struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno]; |
dea3101e JB |
1262 | IOCB_t *entry; |
1263 | IOCB_t *irsp = NULL; | |
1264 | struct lpfc_iocbq *rspiocbp = NULL; | |
1265 | struct lpfc_iocbq *next_iocb; | |
1266 | struct lpfc_iocbq *cmdiocbp; | |
1267 | struct lpfc_iocbq *saveq; | |
dea3101e JB |
1268 | uint8_t iocb_cmd_type; |
1269 | lpfc_iocb_type type; | |
1270 | uint32_t status, free_saveq; | |
1271 | uint32_t portRspPut, portRspMax; | |
1272 | int rc = 1; | |
1273 | unsigned long iflag; | |
2e0fef85 | 1274 | void __iomem *to_slim; |
dea3101e | 1275 | |
2e0fef85 | 1276 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e JB |
1277 | pring->stats.iocb_event++; |
1278 | ||
dea3101e JB |
1279 | /* |
1280 | * The next available response entry should never exceed the maximum | |
1281 | * entries. If it does, treat it as an adapter hardware error. | |
1282 | */ | |
1283 | portRspMax = pring->numRiocb; | |
1284 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1285 | if (portRspPut >= portRspMax) { | |
1286 | /* | |
1287 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger then | |
1288 | * rsp ring <portRspMax> | |
1289 | */ | |
1290 | lpfc_printf_log(phba, | |
1291 | KERN_ERR, | |
1292 | LOG_SLI, | |
dca9479b | 1293 | "%d:0303 Ring %d handler: portRspPut %d " |
dea3101e JB |
1294 | "is bigger then rsp ring %d\n", |
1295 | phba->brd_no, | |
1296 | pring->ringno, portRspPut, portRspMax); | |
1297 | ||
2e0fef85 JS |
1298 | phba->link_state = LPFC_HBA_ERROR; |
1299 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
dea3101e JB |
1300 | |
1301 | phba->work_hs = HS_FFER3; | |
1302 | lpfc_handle_eratt(phba); | |
1303 | ||
1304 | return 1; | |
1305 | } | |
1306 | ||
1307 | rmb(); | |
dea3101e JB |
1308 | while (pring->rspidx != portRspPut) { |
1309 | /* | |
1310 | * Build a completion list and call the appropriate handler. | |
1311 | * The process is to get the next available response iocb, get | |
1312 | * a free iocb from the list, copy the response data into the | |
1313 | * free iocb, insert to the continuation list, and update the | |
1314 | * next response index to slim. This process makes response | |
1315 | * iocb's in the ring available to DMA as fast as possible but | |
1316 | * pays a penalty for a copy operation. Since the iocb is | |
1317 | * only 32 bytes, this penalty is considered small relative to | |
1318 | * the PCI reads for register values and a slim write. When | |
1319 | * the ulpLe field is set, the entire Command has been | |
1320 | * received. | |
1321 | */ | |
1322 | entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx); | |
2e0fef85 | 1323 | rspiocbp = __lpfc_sli_get_iocbq(phba); |
dea3101e JB |
1324 | if (rspiocbp == NULL) { |
1325 | printk(KERN_ERR "%s: out of buffers! Failing " | |
1326 | "completion.\n", __FUNCTION__); | |
1327 | break; | |
1328 | } | |
1329 | ||
2e0fef85 | 1330 | lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb, sizeof(IOCB_t)); |
dea3101e JB |
1331 | irsp = &rspiocbp->iocb; |
1332 | ||
1333 | if (++pring->rspidx >= portRspMax) | |
1334 | pring->rspidx = 0; | |
1335 | ||
1336 | to_slim = phba->MBslimaddr + (SLIMOFF + (pring->ringno * 2) | |
1337 | + 1) * 4; | |
f91b392c | 1338 | writel(pring->rspidx, to_slim); |
dea3101e JB |
1339 | |
1340 | if (list_empty(&(pring->iocb_continueq))) { | |
1341 | list_add(&rspiocbp->list, &(pring->iocb_continueq)); | |
1342 | } else { | |
1343 | list_add_tail(&rspiocbp->list, | |
1344 | &(pring->iocb_continueq)); | |
1345 | } | |
1346 | ||
1347 | pring->iocb_continueq_cnt++; | |
1348 | if (irsp->ulpLe) { | |
1349 | /* | |
1350 | * By default, the driver expects to free all resources | |
1351 | * associated with this iocb completion. | |
1352 | */ | |
1353 | free_saveq = 1; | |
1354 | saveq = list_get_first(&pring->iocb_continueq, | |
1355 | struct lpfc_iocbq, list); | |
1356 | irsp = &(saveq->iocb); | |
1357 | list_del_init(&pring->iocb_continueq); | |
1358 | pring->iocb_continueq_cnt = 0; | |
1359 | ||
1360 | pring->stats.iocb_rsp++; | |
1361 | ||
1362 | if (irsp->ulpStatus) { | |
1363 | /* Rsp ring <ringno> error: IOCB */ | |
1364 | lpfc_printf_log(phba, | |
1365 | KERN_WARNING, | |
1366 | LOG_SLI, | |
1367 | "%d:0328 Rsp Ring %d error: IOCB Data: " | |
1368 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", | |
1369 | phba->brd_no, | |
1370 | pring->ringno, | |
1371 | irsp->un.ulpWord[0], | |
1372 | irsp->un.ulpWord[1], | |
1373 | irsp->un.ulpWord[2], | |
1374 | irsp->un.ulpWord[3], | |
1375 | irsp->un.ulpWord[4], | |
1376 | irsp->un.ulpWord[5], | |
1377 | *(((uint32_t *) irsp) + 6), | |
1378 | *(((uint32_t *) irsp) + 7)); | |
1379 | } | |
1380 | ||
1381 | /* | |
1382 | * Fetch the IOCB command type and call the correct | |
1383 | * completion routine. Solicited and Unsolicited | |
1384 | * IOCBs on the ELS ring get freed back to the | |
1385 | * lpfc_iocb_list by the discovery kernel thread. | |
1386 | */ | |
1387 | iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK; | |
1388 | type = lpfc_sli_iocb_cmd_type(iocb_cmd_type); | |
1389 | if (type == LPFC_SOL_IOCB) { | |
2e0fef85 | 1390 | spin_unlock_irqrestore(&phba->hbalock, |
dea3101e JB |
1391 | iflag); |
1392 | rc = lpfc_sli_process_sol_iocb(phba, pring, | |
2e0fef85 JS |
1393 | saveq); |
1394 | spin_lock_irqsave(&phba->hbalock, iflag); | |
dea3101e | 1395 | } else if (type == LPFC_UNSOL_IOCB) { |
2e0fef85 | 1396 | spin_unlock_irqrestore(&phba->hbalock, |
dea3101e JB |
1397 | iflag); |
1398 | rc = lpfc_sli_process_unsol_iocb(phba, pring, | |
2e0fef85 JS |
1399 | saveq); |
1400 | spin_lock_irqsave(&phba->hbalock, iflag); | |
dea3101e JB |
1401 | } else if (type == LPFC_ABORT_IOCB) { |
1402 | if ((irsp->ulpCommand != CMD_XRI_ABORTED_CX) && | |
1403 | ((cmdiocbp = | |
604a3e30 JB |
1404 | lpfc_sli_iocbq_lookup(phba, pring, |
1405 | saveq)))) { | |
dea3101e JB |
1406 | /* Call the specified completion |
1407 | routine */ | |
1408 | if (cmdiocbp->iocb_cmpl) { | |
1409 | spin_unlock_irqrestore( | |
2e0fef85 | 1410 | &phba->hbalock, |
dea3101e JB |
1411 | iflag); |
1412 | (cmdiocbp->iocb_cmpl) (phba, | |
1413 | cmdiocbp, saveq); | |
1414 | spin_lock_irqsave( | |
2e0fef85 | 1415 | &phba->hbalock, |
dea3101e | 1416 | iflag); |
604a3e30 | 1417 | } else |
2e0fef85 | 1418 | __lpfc_sli_release_iocbq(phba, |
604a3e30 | 1419 | cmdiocbp); |
dea3101e JB |
1420 | } |
1421 | } else if (type == LPFC_UNKNOWN_IOCB) { | |
1422 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
1423 | ||
1424 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
1425 | ||
1426 | memset(adaptermsg, 0, | |
1427 | LPFC_MAX_ADPTMSG); | |
1428 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
1429 | MAX_MSG_DATA); | |
1430 | dev_warn(&((phba->pcidev)->dev), | |
1431 | "lpfc%d: %s", | |
1432 | phba->brd_no, adaptermsg); | |
1433 | } else { | |
1434 | /* Unknown IOCB command */ | |
1435 | lpfc_printf_log(phba, | |
1436 | KERN_ERR, | |
1437 | LOG_SLI, | |
dca9479b | 1438 | "%d:0335 Unknown IOCB command " |
dea3101e JB |
1439 | "Data: x%x x%x x%x x%x\n", |
1440 | phba->brd_no, | |
1441 | irsp->ulpCommand, | |
1442 | irsp->ulpStatus, | |
1443 | irsp->ulpIoTag, | |
1444 | irsp->ulpContext); | |
1445 | } | |
1446 | } | |
1447 | ||
1448 | if (free_saveq) { | |
2e0fef85 JS |
1449 | list_for_each_entry_safe(rspiocbp, next_iocb, |
1450 | &saveq->list, list) { | |
1451 | list_del(&rspiocbp->list); | |
1452 | __lpfc_sli_release_iocbq(phba, | |
1453 | rspiocbp); | |
dea3101e | 1454 | } |
2e0fef85 | 1455 | __lpfc_sli_release_iocbq(phba, saveq); |
dea3101e JB |
1456 | } |
1457 | } | |
1458 | ||
1459 | /* | |
1460 | * If the port response put pointer has not been updated, sync | |
1461 | * the pgp->rspPutInx in the MAILBOX_tand fetch the new port | |
1462 | * response put pointer. | |
1463 | */ | |
1464 | if (pring->rspidx == portRspPut) { | |
1465 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1466 | } | |
1467 | } /* while (pring->rspidx != portRspPut) */ | |
1468 | ||
1469 | if ((rspiocbp != 0) && (mask & HA_R0RE_REQ)) { | |
1470 | /* At least one response entry has been freed */ | |
1471 | pring->stats.iocb_rsp_full++; | |
1472 | /* SET RxRE_RSP in Chip Att register */ | |
1473 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
1474 | writel(status, phba->CAregaddr); | |
1475 | readl(phba->CAregaddr); /* flush */ | |
1476 | } | |
1477 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
1478 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
1479 | pring->stats.iocb_cmd_empty++; | |
1480 | ||
1481 | /* Force update of the local copy of cmdGetInx */ | |
1482 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
1483 | lpfc_sli_resume_iocb(phba, pring); | |
1484 | ||
1485 | if ((pring->lpfc_sli_cmd_available)) | |
1486 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
1487 | ||
1488 | } | |
1489 | ||
2e0fef85 | 1490 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e JB |
1491 | return rc; |
1492 | } | |
1493 | ||
2e0fef85 | 1494 | void |
dea3101e JB |
1495 | lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
1496 | { | |
2534ba75 | 1497 | LIST_HEAD(completions); |
dea3101e | 1498 | struct lpfc_iocbq *iocb, *next_iocb; |
2534ba75 | 1499 | IOCB_t *cmd = NULL; |
dea3101e JB |
1500 | |
1501 | /* Error everything on txq and txcmplq | |
1502 | * First do the txq. | |
1503 | */ | |
2e0fef85 | 1504 | spin_lock_irq(&phba->hbalock); |
2534ba75 | 1505 | list_splice_init(&pring->txq, &completions); |
dea3101e | 1506 | pring->txq_cnt = 0; |
dea3101e JB |
1507 | |
1508 | /* Next issue ABTS for everything on the txcmplq */ | |
2534ba75 JS |
1509 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) |
1510 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); | |
dea3101e | 1511 | |
2e0fef85 | 1512 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 1513 | |
2534ba75 JS |
1514 | while (!list_empty(&completions)) { |
1515 | iocb = list_get_first(&completions, struct lpfc_iocbq, list); | |
1516 | cmd = &iocb->iocb; | |
1517 | list_del(&iocb->list); | |
dea3101e | 1518 | |
2e0fef85 JS |
1519 | if (!iocb->iocb_cmpl) |
1520 | lpfc_sli_release_iocbq(phba, iocb); | |
1521 | else { | |
dea3101e JB |
1522 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; |
1523 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
dea3101e | 1524 | (iocb->iocb_cmpl) (phba, iocb, iocb); |
2e0fef85 | 1525 | } |
dea3101e | 1526 | } |
dea3101e JB |
1527 | } |
1528 | ||
41415862 | 1529 | int |
2e0fef85 | 1530 | lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask) |
dea3101e | 1531 | { |
41415862 JW |
1532 | uint32_t status; |
1533 | int i = 0; | |
1534 | int retval = 0; | |
dea3101e | 1535 | |
41415862 JW |
1536 | /* Read the HBA Host Status Register */ |
1537 | status = readl(phba->HSregaddr); | |
dea3101e | 1538 | |
41415862 JW |
1539 | /* |
1540 | * Check status register every 100ms for 5 retries, then every | |
1541 | * 500ms for 5, then every 2.5 sec for 5, then reset board and | |
1542 | * every 2.5 sec for 4. | |
1543 | * Break our of the loop if errors occurred during init. | |
1544 | */ | |
1545 | while (((status & mask) != mask) && | |
1546 | !(status & HS_FFERM) && | |
1547 | i++ < 20) { | |
dea3101e | 1548 | |
41415862 JW |
1549 | if (i <= 5) |
1550 | msleep(10); | |
1551 | else if (i <= 10) | |
1552 | msleep(500); | |
1553 | else | |
1554 | msleep(2500); | |
dea3101e | 1555 | |
41415862 | 1556 | if (i == 15) { |
2e0fef85 JS |
1557 | /* Do post */ |
1558 | phba->pport->port_state = LPFC_STATE_UNKNOWN; | |
41415862 JW |
1559 | lpfc_sli_brdrestart(phba); |
1560 | } | |
1561 | /* Read the HBA Host Status Register */ | |
1562 | status = readl(phba->HSregaddr); | |
1563 | } | |
dea3101e | 1564 | |
41415862 JW |
1565 | /* Check to see if any errors occurred during init */ |
1566 | if ((status & HS_FFERM) || (i >= 20)) { | |
2e0fef85 | 1567 | phba->link_state = LPFC_HBA_ERROR; |
41415862 | 1568 | retval = 1; |
dea3101e | 1569 | } |
dea3101e | 1570 | |
41415862 JW |
1571 | return retval; |
1572 | } | |
dea3101e | 1573 | |
9290831f JS |
1574 | #define BARRIER_TEST_PATTERN (0xdeadbeef) |
1575 | ||
2e0fef85 | 1576 | void lpfc_reset_barrier(struct lpfc_hba *phba) |
9290831f | 1577 | { |
65a29c16 JS |
1578 | uint32_t __iomem *resp_buf; |
1579 | uint32_t __iomem *mbox_buf; | |
9290831f JS |
1580 | volatile uint32_t mbox; |
1581 | uint32_t hc_copy; | |
1582 | int i; | |
1583 | uint8_t hdrtype; | |
1584 | ||
1585 | pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype); | |
1586 | if (hdrtype != 0x80 || | |
1587 | (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID && | |
1588 | FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID)) | |
1589 | return; | |
1590 | ||
1591 | /* | |
1592 | * Tell the other part of the chip to suspend temporarily all | |
1593 | * its DMA activity. | |
1594 | */ | |
65a29c16 | 1595 | resp_buf = phba->MBslimaddr; |
9290831f JS |
1596 | |
1597 | /* Disable the error attention */ | |
1598 | hc_copy = readl(phba->HCregaddr); | |
1599 | writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr); | |
1600 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 | 1601 | phba->link_flag |= LS_IGNORE_ERATT; |
9290831f JS |
1602 | |
1603 | if (readl(phba->HAregaddr) & HA_ERATT) { | |
1604 | /* Clear Chip error bit */ | |
1605 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 1606 | phba->pport->stopped = 1; |
9290831f JS |
1607 | } |
1608 | ||
1609 | mbox = 0; | |
1610 | ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD; | |
1611 | ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP; | |
1612 | ||
1613 | writel(BARRIER_TEST_PATTERN, (resp_buf + 1)); | |
65a29c16 | 1614 | mbox_buf = phba->MBslimaddr; |
9290831f JS |
1615 | writel(mbox, mbox_buf); |
1616 | ||
1617 | for (i = 0; | |
1618 | readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++) | |
1619 | mdelay(1); | |
1620 | ||
1621 | if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) { | |
1622 | if (phba->sli.sli_flag & LPFC_SLI2_ACTIVE || | |
2e0fef85 | 1623 | phba->pport->stopped) |
9290831f JS |
1624 | goto restore_hc; |
1625 | else | |
1626 | goto clear_errat; | |
1627 | } | |
1628 | ||
1629 | ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST; | |
1630 | for (i = 0; readl(resp_buf) != mbox && i < 500; i++) | |
1631 | mdelay(1); | |
1632 | ||
1633 | clear_errat: | |
1634 | ||
1635 | while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500) | |
1636 | mdelay(1); | |
1637 | ||
1638 | if (readl(phba->HAregaddr) & HA_ERATT) { | |
1639 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 1640 | phba->pport->stopped = 1; |
9290831f JS |
1641 | } |
1642 | ||
1643 | restore_hc: | |
2e0fef85 | 1644 | phba->link_flag &= ~LS_IGNORE_ERATT; |
9290831f JS |
1645 | writel(hc_copy, phba->HCregaddr); |
1646 | readl(phba->HCregaddr); /* flush */ | |
1647 | } | |
1648 | ||
41415862 | 1649 | int |
2e0fef85 | 1650 | lpfc_sli_brdkill(struct lpfc_hba *phba) |
41415862 JW |
1651 | { |
1652 | struct lpfc_sli *psli; | |
1653 | LPFC_MBOXQ_t *pmb; | |
1654 | uint32_t status; | |
1655 | uint32_t ha_copy; | |
1656 | int retval; | |
1657 | int i = 0; | |
dea3101e | 1658 | |
41415862 | 1659 | psli = &phba->sli; |
dea3101e | 1660 | |
41415862 JW |
1661 | /* Kill HBA */ |
1662 | lpfc_printf_log(phba, | |
1663 | KERN_INFO, | |
1664 | LOG_SLI, | |
1665 | "%d:0329 Kill HBA Data: x%x x%x\n", | |
1666 | phba->brd_no, | |
2e0fef85 | 1667 | phba->pport->port_state, |
41415862 JW |
1668 | psli->sli_flag); |
1669 | ||
1670 | if ((pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, | |
9290831f | 1671 | GFP_KERNEL)) == 0) |
41415862 | 1672 | return 1; |
41415862 JW |
1673 | |
1674 | /* Disable the error attention */ | |
2e0fef85 | 1675 | spin_lock_irq(&phba->hbalock); |
41415862 JW |
1676 | status = readl(phba->HCregaddr); |
1677 | status &= ~HC_ERINT_ENA; | |
1678 | writel(status, phba->HCregaddr); | |
1679 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 JS |
1680 | phba->link_flag |= LS_IGNORE_ERATT; |
1681 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
1682 | |
1683 | lpfc_kill_board(phba, pmb); | |
1684 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
1685 | retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
1686 | ||
1687 | if (retval != MBX_SUCCESS) { | |
1688 | if (retval != MBX_BUSY) | |
1689 | mempool_free(pmb, phba->mbox_mem_pool); | |
2e0fef85 JS |
1690 | spin_lock_irq(&phba->hbalock); |
1691 | phba->link_flag &= ~LS_IGNORE_ERATT; | |
1692 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
1693 | return 1; |
1694 | } | |
1695 | ||
9290831f JS |
1696 | psli->sli_flag &= ~LPFC_SLI2_ACTIVE; |
1697 | ||
41415862 JW |
1698 | mempool_free(pmb, phba->mbox_mem_pool); |
1699 | ||
1700 | /* There is no completion for a KILL_BOARD mbox cmd. Check for an error | |
1701 | * attention every 100ms for 3 seconds. If we don't get ERATT after | |
1702 | * 3 seconds we still set HBA_ERROR state because the status of the | |
1703 | * board is now undefined. | |
1704 | */ | |
1705 | ha_copy = readl(phba->HAregaddr); | |
1706 | ||
1707 | while ((i++ < 30) && !(ha_copy & HA_ERATT)) { | |
1708 | mdelay(100); | |
1709 | ha_copy = readl(phba->HAregaddr); | |
1710 | } | |
1711 | ||
1712 | del_timer_sync(&psli->mbox_tmo); | |
9290831f JS |
1713 | if (ha_copy & HA_ERATT) { |
1714 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 1715 | phba->pport->stopped = 1; |
9290831f | 1716 | } |
2e0fef85 | 1717 | spin_lock_irq(&phba->hbalock); |
41415862 | 1718 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 JS |
1719 | phba->link_flag &= ~LS_IGNORE_ERATT; |
1720 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
1721 | |
1722 | psli->mbox_active = NULL; | |
1723 | lpfc_hba_down_post(phba); | |
2e0fef85 | 1724 | phba->link_state = LPFC_HBA_ERROR; |
41415862 | 1725 | |
2e0fef85 | 1726 | return ha_copy & HA_ERATT ? 0 : 1; |
dea3101e JB |
1727 | } |
1728 | ||
41415862 | 1729 | int |
2e0fef85 | 1730 | lpfc_sli_brdreset(struct lpfc_hba *phba) |
dea3101e | 1731 | { |
41415862 | 1732 | struct lpfc_sli *psli; |
dea3101e | 1733 | struct lpfc_sli_ring *pring; |
41415862 | 1734 | uint16_t cfg_value; |
dea3101e | 1735 | int i; |
dea3101e | 1736 | |
41415862 | 1737 | psli = &phba->sli; |
dea3101e | 1738 | |
41415862 JW |
1739 | /* Reset HBA */ |
1740 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
1741 | "%d:0325 Reset HBA Data: x%x x%x\n", phba->brd_no, | |
2e0fef85 | 1742 | phba->pport->port_state, psli->sli_flag); |
dea3101e JB |
1743 | |
1744 | /* perform board reset */ | |
1745 | phba->fc_eventTag = 0; | |
2e0fef85 JS |
1746 | phba->pport->fc_myDID = 0; |
1747 | phba->pport->fc_prevDID = 0; | |
dea3101e | 1748 | |
41415862 JW |
1749 | /* Turn off parity checking and serr during the physical reset */ |
1750 | pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value); | |
1751 | pci_write_config_word(phba->pcidev, PCI_COMMAND, | |
1752 | (cfg_value & | |
1753 | ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR))); | |
1754 | ||
1c067a42 | 1755 | psli->sli_flag &= ~(LPFC_SLI2_ACTIVE | LPFC_PROCESS_LA); |
41415862 JW |
1756 | /* Now toggle INITFF bit in the Host Control Register */ |
1757 | writel(HC_INITFF, phba->HCregaddr); | |
1758 | mdelay(1); | |
1759 | readl(phba->HCregaddr); /* flush */ | |
1760 | writel(0, phba->HCregaddr); | |
1761 | readl(phba->HCregaddr); /* flush */ | |
1762 | ||
1763 | /* Restore PCI cmd register */ | |
1764 | pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value); | |
dea3101e JB |
1765 | |
1766 | /* Initialize relevant SLI info */ | |
41415862 JW |
1767 | for (i = 0; i < psli->num_rings; i++) { |
1768 | pring = &psli->ring[i]; | |
dea3101e JB |
1769 | pring->flag = 0; |
1770 | pring->rspidx = 0; | |
1771 | pring->next_cmdidx = 0; | |
1772 | pring->local_getidx = 0; | |
1773 | pring->cmdidx = 0; | |
1774 | pring->missbufcnt = 0; | |
1775 | } | |
dea3101e | 1776 | |
2e0fef85 | 1777 | phba->link_state = LPFC_WARM_START; |
41415862 JW |
1778 | return 0; |
1779 | } | |
1780 | ||
1781 | int | |
2e0fef85 | 1782 | lpfc_sli_brdrestart(struct lpfc_hba *phba) |
41415862 JW |
1783 | { |
1784 | MAILBOX_t *mb; | |
1785 | struct lpfc_sli *psli; | |
1786 | uint16_t skip_post; | |
1787 | volatile uint32_t word0; | |
1788 | void __iomem *to_slim; | |
1789 | ||
2e0fef85 | 1790 | spin_lock_irq(&phba->hbalock); |
41415862 JW |
1791 | |
1792 | psli = &phba->sli; | |
1793 | ||
1794 | /* Restart HBA */ | |
1795 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
dca9479b | 1796 | "%d:0337 Restart HBA Data: x%x x%x\n", phba->brd_no, |
2e0fef85 | 1797 | phba->pport->port_state, psli->sli_flag); |
41415862 JW |
1798 | |
1799 | word0 = 0; | |
1800 | mb = (MAILBOX_t *) &word0; | |
1801 | mb->mbxCommand = MBX_RESTART; | |
1802 | mb->mbxHc = 1; | |
1803 | ||
9290831f JS |
1804 | lpfc_reset_barrier(phba); |
1805 | ||
41415862 JW |
1806 | to_slim = phba->MBslimaddr; |
1807 | writel(*(uint32_t *) mb, to_slim); | |
1808 | readl(to_slim); /* flush */ | |
1809 | ||
1810 | /* Only skip post after fc_ffinit is completed */ | |
2e0fef85 | 1811 | if (phba->pport->port_state) { |
41415862 JW |
1812 | skip_post = 1; |
1813 | word0 = 1; /* This is really setting up word1 */ | |
dea3101e | 1814 | } else { |
41415862 JW |
1815 | skip_post = 0; |
1816 | word0 = 0; /* This is really setting up word1 */ | |
dea3101e | 1817 | } |
65a29c16 | 1818 | to_slim = phba->MBslimaddr + sizeof (uint32_t); |
41415862 JW |
1819 | writel(*(uint32_t *) mb, to_slim); |
1820 | readl(to_slim); /* flush */ | |
dea3101e | 1821 | |
41415862 | 1822 | lpfc_sli_brdreset(phba); |
2e0fef85 JS |
1823 | phba->pport->stopped = 0; |
1824 | phba->link_state = LPFC_INIT_START; | |
41415862 | 1825 | |
2e0fef85 | 1826 | spin_unlock_irq(&phba->hbalock); |
41415862 | 1827 | |
64ba8818 JS |
1828 | memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets)); |
1829 | psli->stats_start = get_seconds(); | |
1830 | ||
41415862 JW |
1831 | if (skip_post) |
1832 | mdelay(100); | |
1833 | else | |
1834 | mdelay(2000); | |
1835 | ||
1836 | lpfc_hba_down_post(phba); | |
dea3101e JB |
1837 | |
1838 | return 0; | |
1839 | } | |
1840 | ||
1841 | static int | |
1842 | lpfc_sli_chipset_init(struct lpfc_hba *phba) | |
1843 | { | |
1844 | uint32_t status, i = 0; | |
1845 | ||
1846 | /* Read the HBA Host Status Register */ | |
1847 | status = readl(phba->HSregaddr); | |
1848 | ||
1849 | /* Check status register to see what current state is */ | |
1850 | i = 0; | |
1851 | while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) { | |
1852 | ||
1853 | /* Check every 100ms for 5 retries, then every 500ms for 5, then | |
1854 | * every 2.5 sec for 5, then reset board and every 2.5 sec for | |
1855 | * 4. | |
1856 | */ | |
1857 | if (i++ >= 20) { | |
1858 | /* Adapter failed to init, timeout, status reg | |
1859 | <status> */ | |
1860 | lpfc_printf_log(phba, | |
1861 | KERN_ERR, | |
1862 | LOG_INIT, | |
1863 | "%d:0436 Adapter failed to init, " | |
1864 | "timeout, status reg x%x\n", | |
1865 | phba->brd_no, | |
1866 | status); | |
2e0fef85 | 1867 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e JB |
1868 | return -ETIMEDOUT; |
1869 | } | |
1870 | ||
1871 | /* Check to see if any errors occurred during init */ | |
1872 | if (status & HS_FFERM) { | |
1873 | /* ERROR: During chipset initialization */ | |
1874 | /* Adapter failed to init, chipset, status reg | |
1875 | <status> */ | |
1876 | lpfc_printf_log(phba, | |
1877 | KERN_ERR, | |
1878 | LOG_INIT, | |
1879 | "%d:0437 Adapter failed to init, " | |
1880 | "chipset, status reg x%x\n", | |
1881 | phba->brd_no, | |
1882 | status); | |
2e0fef85 | 1883 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e JB |
1884 | return -EIO; |
1885 | } | |
1886 | ||
1887 | if (i <= 5) { | |
1888 | msleep(10); | |
1889 | } else if (i <= 10) { | |
1890 | msleep(500); | |
1891 | } else { | |
1892 | msleep(2500); | |
1893 | } | |
1894 | ||
1895 | if (i == 15) { | |
2e0fef85 JS |
1896 | /* Do post */ |
1897 | phba->pport->port_state = LPFC_STATE_UNKNOWN; | |
41415862 | 1898 | lpfc_sli_brdrestart(phba); |
dea3101e JB |
1899 | } |
1900 | /* Read the HBA Host Status Register */ | |
1901 | status = readl(phba->HSregaddr); | |
1902 | } | |
1903 | ||
1904 | /* Check to see if any errors occurred during init */ | |
1905 | if (status & HS_FFERM) { | |
1906 | /* ERROR: During chipset initialization */ | |
1907 | /* Adapter failed to init, chipset, status reg <status> */ | |
1908 | lpfc_printf_log(phba, | |
1909 | KERN_ERR, | |
1910 | LOG_INIT, | |
1911 | "%d:0438 Adapter failed to init, chipset, " | |
1912 | "status reg x%x\n", | |
1913 | phba->brd_no, | |
1914 | status); | |
2e0fef85 | 1915 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e JB |
1916 | return -EIO; |
1917 | } | |
1918 | ||
1919 | /* Clear all interrupt enable conditions */ | |
1920 | writel(0, phba->HCregaddr); | |
1921 | readl(phba->HCregaddr); /* flush */ | |
1922 | ||
1923 | /* setup host attn register */ | |
1924 | writel(0xffffffff, phba->HAregaddr); | |
1925 | readl(phba->HAregaddr); /* flush */ | |
1926 | return 0; | |
1927 | } | |
1928 | ||
1929 | int | |
2e0fef85 | 1930 | lpfc_sli_hba_setup(struct lpfc_hba *phba) |
dea3101e JB |
1931 | { |
1932 | LPFC_MBOXQ_t *pmb; | |
1933 | uint32_t resetcount = 0, rc = 0, done = 0; | |
1934 | ||
1935 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
1936 | if (!pmb) { | |
2e0fef85 | 1937 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e JB |
1938 | return -ENOMEM; |
1939 | } | |
1940 | ||
1941 | while (resetcount < 2 && !done) { | |
2e0fef85 | 1942 | spin_lock_irq(&phba->hbalock); |
1c067a42 | 1943 | phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 JS |
1944 | spin_unlock_irq(&phba->hbalock); |
1945 | phba->pport->port_state = LPFC_STATE_UNKNOWN; | |
41415862 | 1946 | lpfc_sli_brdrestart(phba); |
dea3101e JB |
1947 | msleep(2500); |
1948 | rc = lpfc_sli_chipset_init(phba); | |
1949 | if (rc) | |
1950 | break; | |
1951 | ||
2e0fef85 | 1952 | spin_lock_irq(&phba->hbalock); |
1c067a42 | 1953 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 1954 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
1955 | resetcount++; |
1956 | ||
1957 | /* Call pre CONFIG_PORT mailbox command initialization. A value of 0 | |
1958 | * means the call was successful. Any other nonzero value is a failure, | |
1959 | * but if ERESTART is returned, the driver may reset the HBA and try | |
1960 | * again. | |
1961 | */ | |
1962 | rc = lpfc_config_port_prep(phba); | |
1963 | if (rc == -ERESTART) { | |
2e0fef85 | 1964 | phba->pport->port_state = 0; |
dea3101e JB |
1965 | continue; |
1966 | } else if (rc) { | |
1967 | break; | |
1968 | } | |
1969 | ||
2e0fef85 | 1970 | phba->link_state = LPFC_INIT_MBX_CMDS; |
dea3101e JB |
1971 | lpfc_config_port(phba, pmb); |
1972 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
1973 | if (rc == MBX_SUCCESS) | |
1974 | done = 1; | |
1975 | else { | |
1976 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1977 | "%d:0442 Adapter failed to init, mbxCmd x%x " | |
1978 | "CONFIG_PORT, mbxStatus x%x Data: x%x\n", | |
1979 | phba->brd_no, pmb->mb.mbxCommand, | |
1980 | pmb->mb.mbxStatus, 0); | |
2e0fef85 | 1981 | spin_lock_irq(&phba->hbalock); |
dea3101e | 1982 | phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE; |
2e0fef85 JS |
1983 | spin_unlock_irq(&phba->hbalock); |
1984 | rc = -ENXIO; | |
dea3101e JB |
1985 | } |
1986 | } | |
1987 | if (!done) | |
1988 | goto lpfc_sli_hba_setup_error; | |
1989 | ||
1990 | rc = lpfc_sli_ring_map(phba, pmb); | |
1991 | ||
1992 | if (rc) | |
1993 | goto lpfc_sli_hba_setup_error; | |
1994 | ||
1995 | phba->sli.sli_flag |= LPFC_PROCESS_LA; | |
1996 | ||
1997 | rc = lpfc_config_port_post(phba); | |
1998 | if (rc) | |
1999 | goto lpfc_sli_hba_setup_error; | |
2000 | ||
2001 | goto lpfc_sli_hba_setup_exit; | |
2002 | lpfc_sli_hba_setup_error: | |
2e0fef85 | 2003 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e JB |
2004 | lpfc_sli_hba_setup_exit: |
2005 | mempool_free(pmb, phba->mbox_mem_pool); | |
2006 | return rc; | |
2007 | } | |
2008 | ||
dea3101e JB |
2009 | /*! lpfc_mbox_timeout |
2010 | * | |
2011 | * \pre | |
2012 | * \post | |
2013 | * \param hba Pointer to per struct lpfc_hba structure | |
2014 | * \param l1 Pointer to the driver's mailbox queue. | |
2015 | * \return | |
2016 | * void | |
2017 | * | |
2018 | * \b Description: | |
2019 | * | |
2020 | * This routine handles mailbox timeout events at timer interrupt context. | |
2021 | */ | |
2022 | void | |
2023 | lpfc_mbox_timeout(unsigned long ptr) | |
2024 | { | |
2e0fef85 | 2025 | struct lpfc_hba *phba = (struct lpfc_hba *) phba; |
dea3101e | 2026 | unsigned long iflag; |
2e0fef85 | 2027 | uint32_t tmo_posted; |
dea3101e | 2028 | |
2e0fef85 JS |
2029 | spin_lock_irqsave(&phba->pport->work_port_lock, iflag); |
2030 | tmo_posted = (phba->pport->work_port_events & WORKER_MBOX_TMO) == 0; | |
2031 | if (!tmo_posted) | |
2032 | phba->pport->work_port_events |= WORKER_MBOX_TMO; | |
2033 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); | |
2034 | ||
2035 | if (!tmo_posted) { | |
dea3101e JB |
2036 | if (phba->work_wait) |
2037 | wake_up(phba->work_wait); | |
2038 | } | |
dea3101e JB |
2039 | } |
2040 | ||
2041 | void | |
2042 | lpfc_mbox_timeout_handler(struct lpfc_hba *phba) | |
2043 | { | |
2e0fef85 JS |
2044 | LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active; |
2045 | MAILBOX_t *mb = &pmbox->mb; | |
1dcb58e5 JS |
2046 | struct lpfc_sli *psli = &phba->sli; |
2047 | struct lpfc_sli_ring *pring; | |
dea3101e | 2048 | |
2e0fef85 | 2049 | if (!(phba->pport->work_port_events & WORKER_MBOX_TMO)) { |
dea3101e JB |
2050 | return; |
2051 | } | |
2052 | ||
dea3101e JB |
2053 | /* Mbox cmd <mbxCommand> timeout */ |
2054 | lpfc_printf_log(phba, | |
2055 | KERN_ERR, | |
2056 | LOG_MBOX | LOG_SLI, | |
2057 | "%d:0310 Mailbox command x%x timeout Data: x%x x%x x%p\n", | |
2058 | phba->brd_no, | |
2059 | mb->mbxCommand, | |
2e0fef85 | 2060 | phba->pport->port_state, |
dea3101e JB |
2061 | phba->sli.sli_flag, |
2062 | phba->sli.mbox_active); | |
2063 | ||
1dcb58e5 JS |
2064 | /* Setting state unknown so lpfc_sli_abort_iocb_ring |
2065 | * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing | |
2066 | * it to fail all oustanding SCSI IO. | |
2067 | */ | |
2e0fef85 JS |
2068 | spin_lock_irq(&phba->pport->work_port_lock); |
2069 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; | |
2070 | spin_unlock_irq(&phba->pport->work_port_lock); | |
2071 | spin_lock_irq(&phba->hbalock); | |
2072 | phba->link_state = LPFC_LINK_UNKNOWN; | |
2073 | phba->pport->fc_flag |= FC_ESTABLISH_LINK; | |
1dcb58e5 | 2074 | psli->sli_flag &= ~LPFC_SLI2_ACTIVE; |
2e0fef85 | 2075 | spin_unlock_irq(&phba->hbalock); |
1dcb58e5 JS |
2076 | |
2077 | pring = &psli->ring[psli->fcp_ring]; | |
2078 | lpfc_sli_abort_iocb_ring(phba, pring); | |
2079 | ||
2080 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
2081 | "%d:0316 Resetting board due to mailbox timeout\n", | |
2082 | phba->brd_no); | |
2083 | /* | |
2084 | * lpfc_offline calls lpfc_sli_hba_down which will clean up | |
2085 | * on oustanding mailbox commands. | |
2086 | */ | |
2087 | lpfc_offline_prep(phba); | |
2088 | lpfc_offline(phba); | |
2089 | lpfc_sli_brdrestart(phba); | |
2090 | if (lpfc_online(phba) == 0) /* Initialize the HBA */ | |
2091 | mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60); | |
2092 | lpfc_unblock_mgmt_io(phba); | |
dea3101e JB |
2093 | return; |
2094 | } | |
2095 | ||
2096 | int | |
2e0fef85 | 2097 | lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag) |
dea3101e | 2098 | { |
dea3101e | 2099 | MAILBOX_t *mb; |
2e0fef85 | 2100 | struct lpfc_sli *psli = &phba->sli; |
dea3101e JB |
2101 | uint32_t status, evtctr; |
2102 | uint32_t ha_copy; | |
2103 | int i; | |
2104 | unsigned long drvr_flag = 0; | |
2105 | volatile uint32_t word0, ldata; | |
2106 | void __iomem *to_slim; | |
2107 | ||
8d63f375 LV |
2108 | /* If the PCI channel is in offline state, do not post mbox. */ |
2109 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
2110 | return MBX_NOT_FINISHED; | |
2111 | ||
2e0fef85 | 2112 | spin_lock_irqsave(&phba->hbalock, drvr_flag); |
dea3101e JB |
2113 | psli = &phba->sli; |
2114 | ||
dea3101e JB |
2115 | mb = &pmbox->mb; |
2116 | status = MBX_SUCCESS; | |
2117 | ||
2e0fef85 JS |
2118 | if (phba->link_state == LPFC_HBA_ERROR) { |
2119 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
41415862 JW |
2120 | |
2121 | /* Mbox command <mbxCommand> cannot issue */ | |
2122 | LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag) | |
2e0fef85 | 2123 | return MBX_NOT_FINISHED; |
41415862 JW |
2124 | } |
2125 | ||
9290831f JS |
2126 | if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT && |
2127 | !(readl(phba->HCregaddr) & HC_MBINT_ENA)) { | |
2e0fef85 | 2128 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
9290831f | 2129 | LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag) |
2e0fef85 | 2130 | return MBX_NOT_FINISHED; |
9290831f JS |
2131 | } |
2132 | ||
dea3101e JB |
2133 | if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { |
2134 | /* Polling for a mbox command when another one is already active | |
2135 | * is not allowed in SLI. Also, the driver must have established | |
2136 | * SLI2 mode to queue and process multiple mbox commands. | |
2137 | */ | |
2138 | ||
2139 | if (flag & MBX_POLL) { | |
2e0fef85 | 2140 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e JB |
2141 | |
2142 | /* Mbox command <mbxCommand> cannot issue */ | |
2e0fef85 JS |
2143 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, mb, psli, flag); |
2144 | return MBX_NOT_FINISHED; | |
dea3101e JB |
2145 | } |
2146 | ||
2147 | if (!(psli->sli_flag & LPFC_SLI2_ACTIVE)) { | |
2e0fef85 | 2148 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 2149 | /* Mbox command <mbxCommand> cannot issue */ |
2e0fef85 JS |
2150 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, mb, psli, flag); |
2151 | return MBX_NOT_FINISHED; | |
dea3101e JB |
2152 | } |
2153 | ||
2154 | /* Handle STOP IOCB processing flag. This is only meaningful | |
2155 | * if we are not polling for mbox completion. | |
2156 | */ | |
2157 | if (flag & MBX_STOP_IOCB) { | |
2158 | flag &= ~MBX_STOP_IOCB; | |
2159 | /* Now flag each ring */ | |
2160 | for (i = 0; i < psli->num_rings; i++) { | |
2161 | /* If the ring is active, flag it */ | |
2162 | if (psli->ring[i].cmdringaddr) { | |
2163 | psli->ring[i].flag |= | |
2164 | LPFC_STOP_IOCB_MBX; | |
2165 | } | |
2166 | } | |
2167 | } | |
2168 | ||
2169 | /* Another mailbox command is still being processed, queue this | |
2170 | * command to be processed later. | |
2171 | */ | |
2172 | lpfc_mbox_put(phba, pmbox); | |
2173 | ||
2174 | /* Mbox cmd issue - BUSY */ | |
2175 | lpfc_printf_log(phba, | |
2176 | KERN_INFO, | |
2177 | LOG_MBOX | LOG_SLI, | |
2178 | "%d:0308 Mbox cmd issue - BUSY Data: x%x x%x x%x x%x\n", | |
2179 | phba->brd_no, | |
2180 | mb->mbxCommand, | |
2e0fef85 | 2181 | phba->pport->port_state, |
dea3101e JB |
2182 | psli->sli_flag, |
2183 | flag); | |
2184 | ||
2185 | psli->slistat.mbox_busy++; | |
2e0fef85 | 2186 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 2187 | |
2e0fef85 | 2188 | return MBX_BUSY; |
dea3101e JB |
2189 | } |
2190 | ||
2191 | /* Handle STOP IOCB processing flag. This is only meaningful | |
2192 | * if we are not polling for mbox completion. | |
2193 | */ | |
2194 | if (flag & MBX_STOP_IOCB) { | |
2195 | flag &= ~MBX_STOP_IOCB; | |
2196 | if (flag == MBX_NOWAIT) { | |
2197 | /* Now flag each ring */ | |
2198 | for (i = 0; i < psli->num_rings; i++) { | |
2199 | /* If the ring is active, flag it */ | |
2200 | if (psli->ring[i].cmdringaddr) { | |
2201 | psli->ring[i].flag |= | |
2202 | LPFC_STOP_IOCB_MBX; | |
2203 | } | |
2204 | } | |
2205 | } | |
2206 | } | |
2207 | ||
2208 | psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; | |
2209 | ||
2210 | /* If we are not polling, we MUST be in SLI2 mode */ | |
2211 | if (flag != MBX_POLL) { | |
41415862 JW |
2212 | if (!(psli->sli_flag & LPFC_SLI2_ACTIVE) && |
2213 | (mb->mbxCommand != MBX_KILL_BOARD)) { | |
dea3101e | 2214 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 2215 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e JB |
2216 | /* Mbox command <mbxCommand> cannot issue */ |
2217 | LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag); | |
2e0fef85 | 2218 | return MBX_NOT_FINISHED; |
dea3101e JB |
2219 | } |
2220 | /* timeout active mbox command */ | |
a309a6b6 JS |
2221 | mod_timer(&psli->mbox_tmo, (jiffies + |
2222 | (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand)))); | |
dea3101e JB |
2223 | } |
2224 | ||
2225 | /* Mailbox cmd <cmd> issue */ | |
2226 | lpfc_printf_log(phba, | |
2227 | KERN_INFO, | |
2228 | LOG_MBOX | LOG_SLI, | |
2229 | "%d:0309 Mailbox cmd x%x issue Data: x%x x%x x%x\n", | |
2230 | phba->brd_no, | |
2231 | mb->mbxCommand, | |
2e0fef85 | 2232 | phba->pport->port_state, |
dea3101e | 2233 | psli->sli_flag, |
2e0fef85 | 2234 | flag); |
dea3101e JB |
2235 | |
2236 | psli->slistat.mbox_cmd++; | |
2237 | evtctr = psli->slistat.mbox_event; | |
2238 | ||
2239 | /* next set own bit for the adapter and copy over command word */ | |
2240 | mb->mbxOwner = OWN_CHIP; | |
2241 | ||
2242 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
dea3101e | 2243 | /* First copy command data to host SLIM area */ |
4cc2da1d | 2244 | lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx, MAILBOX_CMD_SIZE); |
dea3101e | 2245 | } else { |
9290831f | 2246 | if (mb->mbxCommand == MBX_CONFIG_PORT) { |
dea3101e | 2247 | /* copy command data into host mbox for cmpl */ |
4cc2da1d JSEC |
2248 | lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx, |
2249 | MAILBOX_CMD_SIZE); | |
dea3101e JB |
2250 | } |
2251 | ||
2252 | /* First copy mbox command data to HBA SLIM, skip past first | |
2253 | word */ | |
2254 | to_slim = phba->MBslimaddr + sizeof (uint32_t); | |
2255 | lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0], | |
2256 | MAILBOX_CMD_SIZE - sizeof (uint32_t)); | |
2257 | ||
2258 | /* Next copy over first word, with mbxOwner set */ | |
2259 | ldata = *((volatile uint32_t *)mb); | |
2260 | to_slim = phba->MBslimaddr; | |
2261 | writel(ldata, to_slim); | |
2262 | readl(to_slim); /* flush */ | |
2263 | ||
2264 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
2265 | /* switch over to host mailbox */ | |
2266 | psli->sli_flag |= LPFC_SLI2_ACTIVE; | |
2267 | } | |
2268 | } | |
2269 | ||
2270 | wmb(); | |
2271 | /* interrupt board to doit right away */ | |
2272 | writel(CA_MBATT, phba->CAregaddr); | |
2273 | readl(phba->CAregaddr); /* flush */ | |
2274 | ||
2275 | switch (flag) { | |
2276 | case MBX_NOWAIT: | |
2277 | /* Don't wait for it to finish, just return */ | |
2278 | psli->mbox_active = pmbox; | |
2279 | break; | |
2280 | ||
2281 | case MBX_POLL: | |
dea3101e JB |
2282 | psli->mbox_active = NULL; |
2283 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
2284 | /* First read mbox status word */ | |
4cc2da1d | 2285 | word0 = *((volatile uint32_t *)&phba->slim2p->mbx); |
dea3101e JB |
2286 | word0 = le32_to_cpu(word0); |
2287 | } else { | |
2288 | /* First read mbox status word */ | |
2289 | word0 = readl(phba->MBslimaddr); | |
2290 | } | |
2291 | ||
2292 | /* Read the HBA Host Attention Register */ | |
2293 | ha_copy = readl(phba->HAregaddr); | |
2294 | ||
a309a6b6 JS |
2295 | i = lpfc_mbox_tmo_val(phba, mb->mbxCommand); |
2296 | i *= 1000; /* Convert to ms */ | |
2297 | ||
dea3101e | 2298 | /* Wait for command to complete */ |
41415862 JW |
2299 | while (((word0 & OWN_CHIP) == OWN_CHIP) || |
2300 | (!(ha_copy & HA_MBATT) && | |
2e0fef85 | 2301 | (phba->link_state > LPFC_WARM_START))) { |
a309a6b6 | 2302 | if (i-- <= 0) { |
dea3101e | 2303 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 2304 | spin_unlock_irqrestore(&phba->hbalock, |
dea3101e | 2305 | drvr_flag); |
2e0fef85 | 2306 | return MBX_NOT_FINISHED; |
dea3101e JB |
2307 | } |
2308 | ||
2309 | /* Check if we took a mbox interrupt while we were | |
2310 | polling */ | |
2311 | if (((word0 & OWN_CHIP) != OWN_CHIP) | |
2312 | && (evtctr != psli->slistat.mbox_event)) | |
2313 | break; | |
2314 | ||
2e0fef85 | 2315 | spin_unlock_irqrestore(&phba->hbalock, |
dea3101e JB |
2316 | drvr_flag); |
2317 | ||
1dcb58e5 | 2318 | msleep(1); |
dea3101e | 2319 | |
2e0fef85 | 2320 | spin_lock_irqsave(&phba->hbalock, drvr_flag); |
dea3101e JB |
2321 | |
2322 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
2323 | /* First copy command data */ | |
4cc2da1d JSEC |
2324 | word0 = *((volatile uint32_t *) |
2325 | &phba->slim2p->mbx); | |
dea3101e JB |
2326 | word0 = le32_to_cpu(word0); |
2327 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
2328 | MAILBOX_t *slimmb; | |
2329 | volatile uint32_t slimword0; | |
2330 | /* Check real SLIM for any errors */ | |
2331 | slimword0 = readl(phba->MBslimaddr); | |
2332 | slimmb = (MAILBOX_t *) & slimword0; | |
2333 | if (((slimword0 & OWN_CHIP) != OWN_CHIP) | |
2334 | && slimmb->mbxStatus) { | |
2335 | psli->sli_flag &= | |
2336 | ~LPFC_SLI2_ACTIVE; | |
2337 | word0 = slimword0; | |
2338 | } | |
2339 | } | |
2340 | } else { | |
2341 | /* First copy command data */ | |
2342 | word0 = readl(phba->MBslimaddr); | |
2343 | } | |
2344 | /* Read the HBA Host Attention Register */ | |
2345 | ha_copy = readl(phba->HAregaddr); | |
2346 | } | |
2347 | ||
2348 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
dea3101e | 2349 | /* copy results back to user */ |
4cc2da1d JSEC |
2350 | lpfc_sli_pcimem_bcopy(&phba->slim2p->mbx, mb, |
2351 | MAILBOX_CMD_SIZE); | |
dea3101e JB |
2352 | } else { |
2353 | /* First copy command data */ | |
2354 | lpfc_memcpy_from_slim(mb, phba->MBslimaddr, | |
2355 | MAILBOX_CMD_SIZE); | |
2356 | if ((mb->mbxCommand == MBX_DUMP_MEMORY) && | |
2357 | pmbox->context2) { | |
2e0fef85 | 2358 | lpfc_memcpy_from_slim((void *) pmbox->context2, |
dea3101e JB |
2359 | phba->MBslimaddr + DMP_RSP_OFFSET, |
2360 | mb->un.varDmp.word_cnt); | |
2361 | } | |
2362 | } | |
2363 | ||
2364 | writel(HA_MBATT, phba->HAregaddr); | |
2365 | readl(phba->HAregaddr); /* flush */ | |
2366 | ||
2367 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
2368 | status = mb->mbxStatus; | |
2369 | } | |
2370 | ||
2e0fef85 JS |
2371 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
2372 | return status; | |
dea3101e JB |
2373 | } |
2374 | ||
2375 | static int | |
2e0fef85 JS |
2376 | lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
2377 | struct lpfc_iocbq *piocb) | |
dea3101e | 2378 | { |
2e0fef85 JS |
2379 | unsigned long iflags; |
2380 | ||
dea3101e | 2381 | /* Insert the caller's iocb in the txq tail for later processing. */ |
2e0fef85 | 2382 | spin_lock_irqsave(&phba->hbalock, iflags); |
dea3101e JB |
2383 | list_add_tail(&piocb->list, &pring->txq); |
2384 | pring->txq_cnt++; | |
2e0fef85 JS |
2385 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
2386 | return 0; | |
dea3101e JB |
2387 | } |
2388 | ||
2389 | static struct lpfc_iocbq * | |
2390 | lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2e0fef85 | 2391 | struct lpfc_iocbq **piocb) |
dea3101e JB |
2392 | { |
2393 | struct lpfc_iocbq * nextiocb; | |
2394 | ||
2395 | nextiocb = lpfc_sli_ringtx_get(phba, pring); | |
2396 | if (!nextiocb) { | |
2397 | nextiocb = *piocb; | |
2398 | *piocb = NULL; | |
2399 | } | |
2400 | ||
2401 | return nextiocb; | |
2402 | } | |
2403 | ||
2404 | int | |
2405 | lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2406 | struct lpfc_iocbq *piocb, uint32_t flag) | |
2407 | { | |
2408 | struct lpfc_iocbq *nextiocb; | |
2e0fef85 | 2409 | unsigned long iflags; |
dea3101e JB |
2410 | IOCB_t *iocb; |
2411 | ||
8d63f375 LV |
2412 | /* If the PCI channel is in offline state, do not post iocbs. */ |
2413 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
2414 | return IOCB_ERROR; | |
2415 | ||
dea3101e JB |
2416 | /* |
2417 | * We should never get an IOCB if we are in a < LINK_DOWN state | |
2418 | */ | |
2e0fef85 | 2419 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) |
dea3101e JB |
2420 | return IOCB_ERROR; |
2421 | ||
2422 | /* | |
2423 | * Check to see if we are blocking IOCB processing because of a | |
2424 | * outstanding mbox command. | |
2425 | */ | |
2426 | if (unlikely(pring->flag & LPFC_STOP_IOCB_MBX)) | |
2427 | goto iocb_busy; | |
2428 | ||
2e0fef85 | 2429 | if (unlikely(phba->link_state == LPFC_LINK_DOWN)) { |
dea3101e | 2430 | /* |
2680eeaa | 2431 | * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF |
dea3101e JB |
2432 | * can be issued if the link is not up. |
2433 | */ | |
2434 | switch (piocb->iocb.ulpCommand) { | |
2435 | case CMD_QUE_RING_BUF_CN: | |
2436 | case CMD_QUE_RING_BUF64_CN: | |
dea3101e JB |
2437 | /* |
2438 | * For IOCBs, like QUE_RING_BUF, that have no rsp ring | |
2439 | * completion, iocb_cmpl MUST be 0. | |
2440 | */ | |
2441 | if (piocb->iocb_cmpl) | |
2442 | piocb->iocb_cmpl = NULL; | |
2443 | /*FALLTHROUGH*/ | |
2444 | case CMD_CREATE_XRI_CR: | |
2680eeaa JS |
2445 | case CMD_CLOSE_XRI_CN: |
2446 | case CMD_CLOSE_XRI_CX: | |
dea3101e JB |
2447 | break; |
2448 | default: | |
2449 | goto iocb_busy; | |
2450 | } | |
2451 | ||
2452 | /* | |
2453 | * For FCP commands, we must be in a state where we can process link | |
2454 | * attention events. | |
2455 | */ | |
2456 | } else if (unlikely(pring->ringno == phba->sli.fcp_ring && | |
2457 | !(phba->sli.sli_flag & LPFC_PROCESS_LA))) | |
2458 | goto iocb_busy; | |
2459 | ||
2e0fef85 | 2460 | spin_lock_irqsave(&phba->hbalock, iflags); |
dea3101e JB |
2461 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && |
2462 | (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb))) | |
2463 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
2464 | ||
2465 | if (iocb) | |
2466 | lpfc_sli_update_ring(phba, pring); | |
2467 | else | |
2468 | lpfc_sli_update_full_ring(phba, pring); | |
2e0fef85 | 2469 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
dea3101e JB |
2470 | |
2471 | if (!piocb) | |
2472 | return IOCB_SUCCESS; | |
2473 | ||
2474 | goto out_busy; | |
2475 | ||
2476 | iocb_busy: | |
2e0fef85 | 2477 | spin_lock_irqsave(&phba->hbalock, iflags); |
dea3101e | 2478 | pring->stats.iocb_cmd_delay++; |
2e0fef85 | 2479 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
dea3101e JB |
2480 | |
2481 | out_busy: | |
2482 | ||
2483 | if (!(flag & SLI_IOCB_RET_IOCB)) { | |
2484 | lpfc_sli_ringtx_put(phba, pring, piocb); | |
2485 | return IOCB_SUCCESS; | |
2486 | } | |
2487 | ||
2488 | return IOCB_BUSY; | |
2489 | } | |
2490 | ||
cf5bf97e JW |
2491 | static int |
2492 | lpfc_extra_ring_setup( struct lpfc_hba *phba) | |
2493 | { | |
2494 | struct lpfc_sli *psli; | |
2495 | struct lpfc_sli_ring *pring; | |
2496 | ||
2497 | psli = &phba->sli; | |
2498 | ||
2499 | /* Adjust cmd/rsp ring iocb entries more evenly */ | |
a4bc3379 JS |
2500 | |
2501 | /* Take some away from the FCP ring */ | |
cf5bf97e JW |
2502 | pring = &psli->ring[psli->fcp_ring]; |
2503 | pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
2504 | pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
2505 | pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
2506 | pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
2507 | ||
a4bc3379 JS |
2508 | /* and give them to the extra ring */ |
2509 | pring = &psli->ring[psli->extra_ring]; | |
2510 | ||
cf5bf97e JW |
2511 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; |
2512 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
2513 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
2514 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
2515 | ||
2516 | /* Setup default profile for this ring */ | |
2517 | pring->iotag_max = 4096; | |
2518 | pring->num_mask = 1; | |
2519 | pring->prt[0].profile = 0; /* Mask 0 */ | |
a4bc3379 JS |
2520 | pring->prt[0].rctl = phba->cfg_multi_ring_rctl; |
2521 | pring->prt[0].type = phba->cfg_multi_ring_type; | |
cf5bf97e JW |
2522 | pring->prt[0].lpfc_sli_rcv_unsol_event = NULL; |
2523 | return 0; | |
2524 | } | |
2525 | ||
dea3101e JB |
2526 | int |
2527 | lpfc_sli_setup(struct lpfc_hba *phba) | |
2528 | { | |
2529 | int i, totiocb = 0; | |
2530 | struct lpfc_sli *psli = &phba->sli; | |
2531 | struct lpfc_sli_ring *pring; | |
2532 | ||
2533 | psli->num_rings = MAX_CONFIGURED_RINGS; | |
2534 | psli->sli_flag = 0; | |
2535 | psli->fcp_ring = LPFC_FCP_RING; | |
2536 | psli->next_ring = LPFC_FCP_NEXT_RING; | |
a4bc3379 | 2537 | psli->extra_ring = LPFC_EXTRA_RING; |
dea3101e | 2538 | |
604a3e30 JB |
2539 | psli->iocbq_lookup = NULL; |
2540 | psli->iocbq_lookup_len = 0; | |
2541 | psli->last_iotag = 0; | |
2542 | ||
dea3101e JB |
2543 | for (i = 0; i < psli->num_rings; i++) { |
2544 | pring = &psli->ring[i]; | |
2545 | switch (i) { | |
2546 | case LPFC_FCP_RING: /* ring 0 - FCP */ | |
2547 | /* numCiocb and numRiocb are used in config_port */ | |
2548 | pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES; | |
2549 | pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES; | |
2550 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
2551 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
2552 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
2553 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
2554 | pring->iotag_ctr = 0; | |
2555 | pring->iotag_max = | |
2556 | (phba->cfg_hba_queue_depth * 2); | |
2557 | pring->fast_iotag = pring->iotag_max; | |
2558 | pring->num_mask = 0; | |
2559 | break; | |
a4bc3379 | 2560 | case LPFC_EXTRA_RING: /* ring 1 - EXTRA */ |
dea3101e JB |
2561 | /* numCiocb and numRiocb are used in config_port */ |
2562 | pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES; | |
2563 | pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES; | |
2e0fef85 | 2564 | pring->iotag_max = phba->cfg_hba_queue_depth; |
dea3101e JB |
2565 | pring->num_mask = 0; |
2566 | break; | |
2567 | case LPFC_ELS_RING: /* ring 2 - ELS / CT */ | |
2568 | /* numCiocb and numRiocb are used in config_port */ | |
2569 | pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES; | |
2570 | pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES; | |
2571 | pring->fast_iotag = 0; | |
2572 | pring->iotag_ctr = 0; | |
2573 | pring->iotag_max = 4096; | |
2574 | pring->num_mask = 4; | |
2575 | pring->prt[0].profile = 0; /* Mask 0 */ | |
2576 | pring->prt[0].rctl = FC_ELS_REQ; | |
2577 | pring->prt[0].type = FC_ELS_DATA; | |
2578 | pring->prt[0].lpfc_sli_rcv_unsol_event = | |
2579 | lpfc_els_unsol_event; | |
2580 | pring->prt[1].profile = 0; /* Mask 1 */ | |
2581 | pring->prt[1].rctl = FC_ELS_RSP; | |
2582 | pring->prt[1].type = FC_ELS_DATA; | |
2583 | pring->prt[1].lpfc_sli_rcv_unsol_event = | |
2584 | lpfc_els_unsol_event; | |
2585 | pring->prt[2].profile = 0; /* Mask 2 */ | |
2586 | /* NameServer Inquiry */ | |
2587 | pring->prt[2].rctl = FC_UNSOL_CTL; | |
2588 | /* NameServer */ | |
2589 | pring->prt[2].type = FC_COMMON_TRANSPORT_ULP; | |
2590 | pring->prt[2].lpfc_sli_rcv_unsol_event = | |
2591 | lpfc_ct_unsol_event; | |
2592 | pring->prt[3].profile = 0; /* Mask 3 */ | |
2593 | /* NameServer response */ | |
2594 | pring->prt[3].rctl = FC_SOL_CTL; | |
2595 | /* NameServer */ | |
2596 | pring->prt[3].type = FC_COMMON_TRANSPORT_ULP; | |
2597 | pring->prt[3].lpfc_sli_rcv_unsol_event = | |
2598 | lpfc_ct_unsol_event; | |
2599 | break; | |
2600 | } | |
2601 | totiocb += (pring->numCiocb + pring->numRiocb); | |
2602 | } | |
2603 | if (totiocb > MAX_SLI2_IOCB) { | |
2604 | /* Too many cmd / rsp ring entries in SLI2 SLIM */ | |
2605 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
2606 | "%d:0462 Too many cmd / rsp ring entries in " | |
2607 | "SLI2 SLIM Data: x%x x%x\n", | |
2608 | phba->brd_no, totiocb, MAX_SLI2_IOCB); | |
2609 | } | |
cf5bf97e JW |
2610 | if (phba->cfg_multi_ring_support == 2) |
2611 | lpfc_extra_ring_setup(phba); | |
dea3101e JB |
2612 | |
2613 | return 0; | |
2614 | } | |
2615 | ||
2616 | int | |
2e0fef85 | 2617 | lpfc_sli_queue_setup(struct lpfc_hba *phba) |
dea3101e JB |
2618 | { |
2619 | struct lpfc_sli *psli; | |
2620 | struct lpfc_sli_ring *pring; | |
604a3e30 | 2621 | int i; |
dea3101e JB |
2622 | |
2623 | psli = &phba->sli; | |
2e0fef85 | 2624 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
2625 | INIT_LIST_HEAD(&psli->mboxq); |
2626 | /* Initialize list headers for txq and txcmplq as double linked lists */ | |
2627 | for (i = 0; i < psli->num_rings; i++) { | |
2628 | pring = &psli->ring[i]; | |
2629 | pring->ringno = i; | |
2630 | pring->next_cmdidx = 0; | |
2631 | pring->local_getidx = 0; | |
2632 | pring->cmdidx = 0; | |
2633 | INIT_LIST_HEAD(&pring->txq); | |
2634 | INIT_LIST_HEAD(&pring->txcmplq); | |
2635 | INIT_LIST_HEAD(&pring->iocb_continueq); | |
2636 | INIT_LIST_HEAD(&pring->postbufq); | |
dea3101e | 2637 | } |
2e0fef85 JS |
2638 | spin_unlock_irq(&phba->hbalock); |
2639 | return 1; | |
dea3101e JB |
2640 | } |
2641 | ||
2642 | int | |
2e0fef85 | 2643 | lpfc_sli_hba_down(struct lpfc_hba *phba) |
dea3101e | 2644 | { |
2534ba75 | 2645 | LIST_HEAD(completions); |
2e0fef85 | 2646 | struct lpfc_sli *psli = &phba->sli; |
dea3101e JB |
2647 | struct lpfc_sli_ring *pring; |
2648 | LPFC_MBOXQ_t *pmb; | |
2534ba75 JS |
2649 | struct lpfc_iocbq *iocb; |
2650 | IOCB_t *cmd = NULL; | |
dea3101e JB |
2651 | int i; |
2652 | unsigned long flags = 0; | |
2653 | ||
dea3101e JB |
2654 | lpfc_hba_down_prep(phba); |
2655 | ||
2e0fef85 | 2656 | spin_lock_irqsave(&phba->hbalock, flags); |
dea3101e JB |
2657 | for (i = 0; i < psli->num_rings; i++) { |
2658 | pring = &psli->ring[i]; | |
2659 | pring->flag |= LPFC_DEFERRED_RING_EVENT; | |
2660 | ||
2661 | /* | |
2662 | * Error everything on the txq since these iocbs have not been | |
2663 | * given to the FW yet. | |
2664 | */ | |
2534ba75 | 2665 | list_splice_init(&pring->txq, &completions); |
dea3101e JB |
2666 | pring->txq_cnt = 0; |
2667 | ||
2534ba75 | 2668 | } |
2e0fef85 | 2669 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e | 2670 | |
2534ba75 JS |
2671 | while (!list_empty(&completions)) { |
2672 | iocb = list_get_first(&completions, struct lpfc_iocbq, list); | |
2673 | cmd = &iocb->iocb; | |
2674 | list_del(&iocb->list); | |
dea3101e | 2675 | |
2e0fef85 JS |
2676 | if (!iocb->iocb_cmpl) |
2677 | lpfc_sli_release_iocbq(phba, iocb); | |
2678 | else { | |
2534ba75 JS |
2679 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; |
2680 | cmd->un.ulpWord[4] = IOERR_SLI_DOWN; | |
2681 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
2e0fef85 | 2682 | } |
dea3101e JB |
2683 | } |
2684 | ||
dea3101e JB |
2685 | /* Return any active mbox cmds */ |
2686 | del_timer_sync(&psli->mbox_tmo); | |
2e0fef85 JS |
2687 | |
2688 | spin_lock_irqsave(&phba->pport->work_port_lock, flags); | |
2689 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; | |
2690 | spin_unlock_irqrestore(&phba->pport->work_port_lock, flags); | |
2691 | ||
2692 | pmb = psli->mbox_active; | |
2693 | if (pmb) { | |
2694 | psli->mbox_active = NULL; | |
dea3101e | 2695 | pmb->mb.mbxStatus = MBX_NOT_FINISHED; |
2e0fef85 | 2696 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
dea3101e | 2697 | if (pmb->mbox_cmpl) { |
dea3101e | 2698 | pmb->mbox_cmpl(phba,pmb); |
dea3101e JB |
2699 | } |
2700 | } | |
dea3101e JB |
2701 | |
2702 | /* Return any pending mbox cmds */ | |
2703 | while ((pmb = lpfc_mbox_get(phba)) != NULL) { | |
2704 | pmb->mb.mbxStatus = MBX_NOT_FINISHED; | |
2705 | if (pmb->mbox_cmpl) { | |
dea3101e | 2706 | pmb->mbox_cmpl(phba,pmb); |
dea3101e JB |
2707 | } |
2708 | } | |
dea3101e JB |
2709 | INIT_LIST_HEAD(&psli->mboxq); |
2710 | ||
dea3101e JB |
2711 | return 1; |
2712 | } | |
2713 | ||
2714 | void | |
2715 | lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt) | |
2716 | { | |
2717 | uint32_t *src = srcp; | |
2718 | uint32_t *dest = destp; | |
2719 | uint32_t ldata; | |
2720 | int i; | |
2721 | ||
2722 | for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) { | |
2723 | ldata = *src; | |
2724 | ldata = le32_to_cpu(ldata); | |
2725 | *dest = ldata; | |
2726 | src++; | |
2727 | dest++; | |
2728 | } | |
2729 | } | |
2730 | ||
2731 | int | |
2e0fef85 JS |
2732 | lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
2733 | struct lpfc_dmabuf *mp) | |
dea3101e JB |
2734 | { |
2735 | /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up | |
2736 | later */ | |
2e0fef85 | 2737 | spin_lock_irq(&phba->hbalock); |
dea3101e | 2738 | list_add_tail(&mp->list, &pring->postbufq); |
dea3101e | 2739 | pring->postbufq_cnt++; |
2e0fef85 | 2740 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
2741 | return 0; |
2742 | } | |
2743 | ||
2744 | ||
2745 | struct lpfc_dmabuf * | |
2746 | lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2747 | dma_addr_t phys) | |
2748 | { | |
2749 | struct lpfc_dmabuf *mp, *next_mp; | |
2750 | struct list_head *slp = &pring->postbufq; | |
2751 | ||
2752 | /* Search postbufq, from the begining, looking for a match on phys */ | |
2e0fef85 | 2753 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
2754 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { |
2755 | if (mp->phys == phys) { | |
2756 | list_del_init(&mp->list); | |
2757 | pring->postbufq_cnt--; | |
2e0fef85 | 2758 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
2759 | return mp; |
2760 | } | |
2761 | } | |
2762 | ||
2e0fef85 | 2763 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
2764 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
2765 | "%d:0410 Cannot find virtual addr for mapped buf on " | |
2766 | "ring %d Data x%llx x%p x%p x%x\n", | |
2e0fef85 | 2767 | phba->brd_no, pring->ringno, (unsigned long long) phys, |
dea3101e JB |
2768 | slp->next, slp->prev, pring->postbufq_cnt); |
2769 | return NULL; | |
2770 | } | |
2771 | ||
2772 | static void | |
2e0fef85 JS |
2773 | lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2774 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2775 | { |
2e0fef85 | 2776 | IOCB_t *irsp = &rspiocb->iocb; |
2680eeaa JS |
2777 | uint16_t abort_iotag, abort_context; |
2778 | struct lpfc_iocbq *abort_iocb, *rsp_ab_iocb; | |
2779 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
2780 | ||
2781 | abort_iocb = NULL; | |
2680eeaa JS |
2782 | |
2783 | if (irsp->ulpStatus) { | |
2784 | abort_context = cmdiocb->iocb.un.acxri.abortContextTag; | |
2785 | abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag; | |
2786 | ||
2e0fef85 | 2787 | spin_lock_irq(&phba->hbalock); |
2680eeaa JS |
2788 | if (abort_iotag != 0 && abort_iotag <= phba->sli.last_iotag) |
2789 | abort_iocb = phba->sli.iocbq_lookup[abort_iotag]; | |
2790 | ||
2791 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
2792 | "%d:0327 Cannot abort els iocb %p" | |
2793 | " with tag %x context %x\n", | |
2794 | phba->brd_no, abort_iocb, | |
2795 | abort_iotag, abort_context); | |
2796 | ||
2797 | /* | |
2798 | * make sure we have the right iocbq before taking it | |
2799 | * off the txcmplq and try to call completion routine. | |
2800 | */ | |
2e0fef85 JS |
2801 | if (!abort_iocb || |
2802 | abort_iocb->iocb.ulpContext != abort_context || | |
2803 | (abort_iocb->iocb_flag & LPFC_DRIVER_ABORTED) == 0) | |
2804 | spin_unlock_irq(&phba->hbalock); | |
2805 | else { | |
2680eeaa JS |
2806 | list_del(&abort_iocb->list); |
2807 | pring->txcmplq_cnt--; | |
2e0fef85 | 2808 | spin_unlock_irq(&phba->hbalock); |
2680eeaa JS |
2809 | |
2810 | rsp_ab_iocb = lpfc_sli_get_iocbq(phba); | |
2811 | if (rsp_ab_iocb == NULL) | |
2812 | lpfc_sli_release_iocbq(phba, abort_iocb); | |
2813 | else { | |
2e0fef85 | 2814 | abort_iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED; |
2680eeaa JS |
2815 | rsp_ab_iocb->iocb.ulpStatus = |
2816 | IOSTAT_LOCAL_REJECT; | |
2817 | rsp_ab_iocb->iocb.un.ulpWord[4] = | |
2818 | IOERR_SLI_ABORTED; | |
2e0fef85 JS |
2819 | (abort_iocb->iocb_cmpl)(phba, abort_iocb, |
2820 | rsp_ab_iocb); | |
2680eeaa JS |
2821 | lpfc_sli_release_iocbq(phba, rsp_ab_iocb); |
2822 | } | |
2823 | } | |
2824 | } | |
2825 | ||
604a3e30 | 2826 | lpfc_sli_release_iocbq(phba, cmdiocb); |
dea3101e JB |
2827 | return; |
2828 | } | |
2829 | ||
2830 | int | |
2e0fef85 JS |
2831 | lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
2832 | struct lpfc_iocbq *cmdiocb) | |
dea3101e | 2833 | { |
2e0fef85 | 2834 | struct lpfc_vport *vport = cmdiocb->vport; |
0bd4ca25 | 2835 | struct lpfc_iocbq *abtsiocbp; |
dea3101e JB |
2836 | IOCB_t *icmd = NULL; |
2837 | IOCB_t *iabt = NULL; | |
07951076 JS |
2838 | int retval = IOCB_ERROR; |
2839 | ||
2840 | /* There are certain command types we don't want | |
2841 | * to abort. | |
2842 | */ | |
2843 | icmd = &cmdiocb->iocb; | |
2e0fef85 JS |
2844 | if (icmd->ulpCommand == CMD_ABORT_XRI_CN || |
2845 | icmd->ulpCommand == CMD_CLOSE_XRI_CN) | |
07951076 JS |
2846 | return 0; |
2847 | ||
2848 | /* If we're unloading, interrupts are disabled so we | |
2849 | * need to cleanup the iocb here. | |
2850 | */ | |
2e0fef85 | 2851 | if (vport->load_flag & FC_UNLOADING) |
07951076 | 2852 | goto abort_iotag_exit; |
dea3101e JB |
2853 | |
2854 | /* issue ABTS for this IOCB based on iotag */ | |
0bd4ca25 | 2855 | abtsiocbp = lpfc_sli_get_iocbq(phba); |
dea3101e JB |
2856 | if (abtsiocbp == NULL) |
2857 | return 0; | |
dea3101e | 2858 | |
07951076 JS |
2859 | /* This signals the response to set the correct status |
2860 | * before calling the completion handler. | |
2861 | */ | |
2862 | cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED; | |
2863 | ||
dea3101e | 2864 | iabt = &abtsiocbp->iocb; |
07951076 JS |
2865 | iabt->un.acxri.abortType = ABORT_TYPE_ABTS; |
2866 | iabt->un.acxri.abortContextTag = icmd->ulpContext; | |
2867 | iabt->un.acxri.abortIoTag = icmd->ulpIoTag; | |
2868 | iabt->ulpLe = 1; | |
2869 | iabt->ulpClass = icmd->ulpClass; | |
dea3101e | 2870 | |
2e0fef85 | 2871 | if (phba->link_state >= LPFC_LINK_UP) |
07951076 JS |
2872 | iabt->ulpCommand = CMD_ABORT_XRI_CN; |
2873 | else | |
2874 | iabt->ulpCommand = CMD_CLOSE_XRI_CN; | |
dea3101e | 2875 | |
07951076 | 2876 | abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl; |
5b8bd0c9 JS |
2877 | |
2878 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
2879 | "%d:0339 Abort xri x%x, original iotag x%x, abort " | |
2880 | "cmd iotag x%x\n", | |
2881 | phba->brd_no, iabt->un.acxri.abortContextTag, | |
2882 | iabt->un.acxri.abortIoTag, abtsiocbp->iotag); | |
07951076 | 2883 | retval = lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0); |
dea3101e | 2884 | |
07951076 | 2885 | abort_iotag_exit: |
2e0fef85 JS |
2886 | /* |
2887 | * Caller to this routine should check for IOCB_ERROR | |
2888 | * and handle it properly. This routine no longer removes | |
2889 | * iocb off txcmplq and call compl in case of IOCB_ERROR. | |
07951076 | 2890 | */ |
2e0fef85 | 2891 | return retval; |
dea3101e JB |
2892 | } |
2893 | ||
2894 | static int | |
0bd4ca25 JSEC |
2895 | lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, uint16_t tgt_id, |
2896 | uint64_t lun_id, uint32_t ctx, | |
2897 | lpfc_ctx_cmd ctx_cmd) | |
dea3101e | 2898 | { |
0bd4ca25 JSEC |
2899 | struct lpfc_scsi_buf *lpfc_cmd; |
2900 | struct scsi_cmnd *cmnd; | |
dea3101e JB |
2901 | int rc = 1; |
2902 | ||
0bd4ca25 JSEC |
2903 | if (!(iocbq->iocb_flag & LPFC_IO_FCP)) |
2904 | return rc; | |
2905 | ||
2906 | lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq); | |
2907 | cmnd = lpfc_cmd->pCmd; | |
2908 | ||
2909 | if (cmnd == NULL) | |
dea3101e JB |
2910 | return rc; |
2911 | ||
2912 | switch (ctx_cmd) { | |
2913 | case LPFC_CTX_LUN: | |
0bd4ca25 JSEC |
2914 | if ((cmnd->device->id == tgt_id) && |
2915 | (cmnd->device->lun == lun_id)) | |
dea3101e JB |
2916 | rc = 0; |
2917 | break; | |
2918 | case LPFC_CTX_TGT: | |
0bd4ca25 | 2919 | if (cmnd->device->id == tgt_id) |
dea3101e JB |
2920 | rc = 0; |
2921 | break; | |
2922 | case LPFC_CTX_CTX: | |
0bd4ca25 | 2923 | if (iocbq->iocb.ulpContext == ctx) |
dea3101e | 2924 | rc = 0; |
0bd4ca25 | 2925 | break; |
dea3101e JB |
2926 | case LPFC_CTX_HOST: |
2927 | rc = 0; | |
2928 | break; | |
2929 | default: | |
2930 | printk(KERN_ERR "%s: Unknown context cmd type, value %d\n", | |
2931 | __FUNCTION__, ctx_cmd); | |
2932 | break; | |
2933 | } | |
2934 | ||
2935 | return rc; | |
2936 | } | |
2937 | ||
2938 | int | |
2939 | lpfc_sli_sum_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2e0fef85 | 2940 | uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd ctx_cmd) |
dea3101e | 2941 | { |
0bd4ca25 JSEC |
2942 | struct lpfc_iocbq *iocbq; |
2943 | int sum, i; | |
dea3101e | 2944 | |
0bd4ca25 JSEC |
2945 | for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) { |
2946 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 2947 | |
0bd4ca25 JSEC |
2948 | if (lpfc_sli_validate_fcp_iocb (iocbq, tgt_id, lun_id, |
2949 | 0, ctx_cmd) == 0) | |
2950 | sum++; | |
dea3101e | 2951 | } |
0bd4ca25 | 2952 | |
dea3101e JB |
2953 | return sum; |
2954 | } | |
2955 | ||
5eb95af0 | 2956 | void |
2e0fef85 JS |
2957 | lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2958 | struct lpfc_iocbq *rspiocb) | |
5eb95af0 | 2959 | { |
604a3e30 | 2960 | lpfc_sli_release_iocbq(phba, cmdiocb); |
5eb95af0 JSEC |
2961 | return; |
2962 | } | |
2963 | ||
dea3101e JB |
2964 | int |
2965 | lpfc_sli_abort_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2966 | uint16_t tgt_id, uint64_t lun_id, uint32_t ctx, | |
2967 | lpfc_ctx_cmd abort_cmd) | |
2968 | { | |
0bd4ca25 JSEC |
2969 | struct lpfc_iocbq *iocbq; |
2970 | struct lpfc_iocbq *abtsiocb; | |
dea3101e | 2971 | IOCB_t *cmd = NULL; |
dea3101e | 2972 | int errcnt = 0, ret_val = 0; |
0bd4ca25 | 2973 | int i; |
dea3101e | 2974 | |
0bd4ca25 JSEC |
2975 | for (i = 1; i <= phba->sli.last_iotag; i++) { |
2976 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 2977 | |
2e0fef85 JS |
2978 | if (lpfc_sli_validate_fcp_iocb(iocbq, tgt_id, lun_id, 0, |
2979 | abort_cmd) != 0) | |
dea3101e JB |
2980 | continue; |
2981 | ||
2982 | /* issue ABTS for this IOCB based on iotag */ | |
0bd4ca25 | 2983 | abtsiocb = lpfc_sli_get_iocbq(phba); |
dea3101e JB |
2984 | if (abtsiocb == NULL) { |
2985 | errcnt++; | |
2986 | continue; | |
2987 | } | |
dea3101e | 2988 | |
0bd4ca25 | 2989 | cmd = &iocbq->iocb; |
dea3101e JB |
2990 | abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS; |
2991 | abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext; | |
2992 | abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag; | |
2993 | abtsiocb->iocb.ulpLe = 1; | |
2994 | abtsiocb->iocb.ulpClass = cmd->ulpClass; | |
2e0fef85 | 2995 | abtsiocb->vport = phba->pport; |
dea3101e | 2996 | |
2e0fef85 | 2997 | if (lpfc_is_link_up(phba)) |
dea3101e JB |
2998 | abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN; |
2999 | else | |
3000 | abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN; | |
3001 | ||
5eb95af0 JSEC |
3002 | /* Setup callback routine and issue the command. */ |
3003 | abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl; | |
dea3101e JB |
3004 | ret_val = lpfc_sli_issue_iocb(phba, pring, abtsiocb, 0); |
3005 | if (ret_val == IOCB_ERROR) { | |
604a3e30 | 3006 | lpfc_sli_release_iocbq(phba, abtsiocb); |
dea3101e JB |
3007 | errcnt++; |
3008 | continue; | |
3009 | } | |
3010 | } | |
3011 | ||
3012 | return errcnt; | |
3013 | } | |
3014 | ||
68876920 JSEC |
3015 | static void |
3016 | lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba, | |
3017 | struct lpfc_iocbq *cmdiocbq, | |
3018 | struct lpfc_iocbq *rspiocbq) | |
dea3101e | 3019 | { |
68876920 JSEC |
3020 | wait_queue_head_t *pdone_q; |
3021 | unsigned long iflags; | |
dea3101e | 3022 | |
2e0fef85 | 3023 | spin_lock_irqsave(&phba->hbalock, iflags); |
68876920 JSEC |
3024 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; |
3025 | if (cmdiocbq->context2 && rspiocbq) | |
3026 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, | |
3027 | &rspiocbq->iocb, sizeof(IOCB_t)); | |
3028 | ||
3029 | pdone_q = cmdiocbq->context_un.wait_queue; | |
2e0fef85 | 3030 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
68876920 JSEC |
3031 | if (pdone_q) |
3032 | wake_up(pdone_q); | |
dea3101e JB |
3033 | return; |
3034 | } | |
3035 | ||
68876920 JSEC |
3036 | /* |
3037 | * Issue the caller's iocb and wait for its completion, but no longer than the | |
3038 | * caller's timeout. Note that iocb_flags is cleared before the | |
3039 | * lpfc_sli_issue_call since the wake routine sets a unique value and by | |
3040 | * definition this is a wait function. | |
3041 | */ | |
dea3101e | 3042 | int |
2e0fef85 JS |
3043 | lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba, |
3044 | struct lpfc_sli_ring *pring, | |
3045 | struct lpfc_iocbq *piocb, | |
3046 | struct lpfc_iocbq *prspiocbq, | |
68876920 | 3047 | uint32_t timeout) |
dea3101e | 3048 | { |
7259f0d0 | 3049 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q); |
68876920 JSEC |
3050 | long timeleft, timeout_req = 0; |
3051 | int retval = IOCB_SUCCESS; | |
875fbdfe | 3052 | uint32_t creg_val; |
dea3101e JB |
3053 | |
3054 | /* | |
68876920 JSEC |
3055 | * If the caller has provided a response iocbq buffer, then context2 |
3056 | * is NULL or its an error. | |
dea3101e | 3057 | */ |
68876920 JSEC |
3058 | if (prspiocbq) { |
3059 | if (piocb->context2) | |
3060 | return IOCB_ERROR; | |
3061 | piocb->context2 = prspiocbq; | |
dea3101e JB |
3062 | } |
3063 | ||
68876920 JSEC |
3064 | piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait; |
3065 | piocb->context_un.wait_queue = &done_q; | |
3066 | piocb->iocb_flag &= ~LPFC_IO_WAKE; | |
dea3101e | 3067 | |
875fbdfe JSEC |
3068 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
3069 | creg_val = readl(phba->HCregaddr); | |
3070 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); | |
3071 | writel(creg_val, phba->HCregaddr); | |
3072 | readl(phba->HCregaddr); /* flush */ | |
3073 | } | |
3074 | ||
68876920 JSEC |
3075 | retval = lpfc_sli_issue_iocb(phba, pring, piocb, 0); |
3076 | if (retval == IOCB_SUCCESS) { | |
3077 | timeout_req = timeout * HZ; | |
2e0fef85 | 3078 | spin_unlock_irq(&phba->hbalock); |
68876920 JSEC |
3079 | timeleft = wait_event_timeout(done_q, |
3080 | piocb->iocb_flag & LPFC_IO_WAKE, | |
3081 | timeout_req); | |
2e0fef85 | 3082 | spin_lock_irq(&phba->hbalock); |
dea3101e | 3083 | |
7054a606 JS |
3084 | if (piocb->iocb_flag & LPFC_IO_WAKE) { |
3085 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3086 | "%d:0331 IOCB wake signaled\n", | |
3087 | phba->brd_no); | |
3088 | } else if (timeleft == 0) { | |
68876920 | 3089 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
dca9479b | 3090 | "%d:0338 IOCB wait timeout error - no " |
68876920 JSEC |
3091 | "wake response Data x%x\n", |
3092 | phba->brd_no, timeout); | |
3093 | retval = IOCB_TIMEDOUT; | |
7054a606 | 3094 | } else { |
68876920 JSEC |
3095 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
3096 | "%d:0330 IOCB wake NOT set, " | |
3097 | "Data x%x x%lx\n", phba->brd_no, | |
3098 | timeout, (timeleft / jiffies)); | |
3099 | retval = IOCB_TIMEDOUT; | |
dea3101e | 3100 | } |
68876920 JSEC |
3101 | } else { |
3102 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3103 | "%d:0332 IOCB wait issue failed, Data x%x\n", | |
3104 | phba->brd_no, retval); | |
3105 | retval = IOCB_ERROR; | |
dea3101e JB |
3106 | } |
3107 | ||
875fbdfe JSEC |
3108 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
3109 | creg_val = readl(phba->HCregaddr); | |
3110 | creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); | |
3111 | writel(creg_val, phba->HCregaddr); | |
3112 | readl(phba->HCregaddr); /* flush */ | |
3113 | } | |
3114 | ||
68876920 JSEC |
3115 | if (prspiocbq) |
3116 | piocb->context2 = NULL; | |
3117 | ||
3118 | piocb->context_un.wait_queue = NULL; | |
3119 | piocb->iocb_cmpl = NULL; | |
dea3101e JB |
3120 | return retval; |
3121 | } | |
68876920 | 3122 | |
dea3101e | 3123 | int |
2e0fef85 | 3124 | lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq, |
dea3101e JB |
3125 | uint32_t timeout) |
3126 | { | |
7259f0d0 | 3127 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q); |
dea3101e JB |
3128 | int retval; |
3129 | ||
3130 | /* The caller must leave context1 empty. */ | |
3131 | if (pmboxq->context1 != 0) { | |
2e0fef85 | 3132 | return MBX_NOT_FINISHED; |
dea3101e JB |
3133 | } |
3134 | ||
3135 | /* setup wake call as IOCB callback */ | |
3136 | pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait; | |
3137 | /* setup context field to pass wait_queue pointer to wake function */ | |
3138 | pmboxq->context1 = &done_q; | |
3139 | ||
dea3101e JB |
3140 | /* now issue the command */ |
3141 | retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); | |
3142 | ||
3143 | if (retval == MBX_BUSY || retval == MBX_SUCCESS) { | |
7054a606 JS |
3144 | wait_event_interruptible_timeout(done_q, |
3145 | pmboxq->mbox_flag & LPFC_MBX_WAKE, | |
3146 | timeout * HZ); | |
3147 | ||
dea3101e | 3148 | pmboxq->context1 = NULL; |
7054a606 JS |
3149 | /* |
3150 | * if LPFC_MBX_WAKE flag is set the mailbox is completed | |
3151 | * else do not free the resources. | |
3152 | */ | |
3153 | if (pmboxq->mbox_flag & LPFC_MBX_WAKE) | |
dea3101e | 3154 | retval = MBX_SUCCESS; |
7054a606 JS |
3155 | else |
3156 | retval = MBX_TIMEOUT; | |
dea3101e JB |
3157 | } |
3158 | ||
dea3101e JB |
3159 | return retval; |
3160 | } | |
3161 | ||
b4c02652 JS |
3162 | int |
3163 | lpfc_sli_flush_mbox_queue(struct lpfc_hba * phba) | |
3164 | { | |
2e0fef85 | 3165 | struct lpfc_vport *vport = phba->pport; |
b4c02652 JS |
3166 | int i = 0; |
3167 | ||
2e0fef85 | 3168 | while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE && !vport->stopped) { |
b4c02652 JS |
3169 | if (i++ > LPFC_MBOX_TMO * 1000) |
3170 | return 1; | |
3171 | ||
3172 | if (lpfc_sli_handle_mb_event(phba) == 0) | |
3173 | i = 0; | |
3174 | ||
3175 | msleep(1); | |
3176 | } | |
3177 | ||
3178 | return (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) ? 1 : 0; | |
3179 | } | |
3180 | ||
dea3101e | 3181 | irqreturn_t |
7d12e780 | 3182 | lpfc_intr_handler(int irq, void *dev_id) |
dea3101e | 3183 | { |
2e0fef85 | 3184 | struct lpfc_hba *phba; |
dea3101e JB |
3185 | uint32_t ha_copy; |
3186 | uint32_t work_ha_copy; | |
3187 | unsigned long status; | |
3188 | int i; | |
3189 | uint32_t control; | |
3190 | ||
3191 | /* | |
3192 | * Get the driver's phba structure from the dev_id and | |
3193 | * assume the HBA is not interrupting. | |
3194 | */ | |
3195 | phba = (struct lpfc_hba *) dev_id; | |
3196 | ||
3197 | if (unlikely(!phba)) | |
3198 | return IRQ_NONE; | |
3199 | ||
8d63f375 LV |
3200 | /* If the pci channel is offline, ignore all the interrupts. */ |
3201 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
3202 | return IRQ_NONE; | |
3203 | ||
dea3101e JB |
3204 | phba->sli.slistat.sli_intr++; |
3205 | ||
3206 | /* | |
3207 | * Call the HBA to see if it is interrupting. If not, don't claim | |
3208 | * the interrupt | |
3209 | */ | |
3210 | ||
3211 | /* Ignore all interrupts during initialization. */ | |
2e0fef85 | 3212 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) |
dea3101e JB |
3213 | return IRQ_NONE; |
3214 | ||
3215 | /* | |
3216 | * Read host attention register to determine interrupt source | |
3217 | * Clear Attention Sources, except Error Attention (to | |
3218 | * preserve status) and Link Attention | |
3219 | */ | |
2e0fef85 | 3220 | spin_lock(&phba->hbalock); |
dea3101e | 3221 | ha_copy = readl(phba->HAregaddr); |
ebdbe65f JS |
3222 | /* If somebody is waiting to handle an eratt don't process it |
3223 | * here. The brdkill function will do this. | |
3224 | */ | |
2e0fef85 | 3225 | if (phba->link_flag & LS_IGNORE_ERATT) |
ebdbe65f | 3226 | ha_copy &= ~HA_ERATT; |
dea3101e JB |
3227 | writel((ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr); |
3228 | readl(phba->HAregaddr); /* flush */ | |
2e0fef85 | 3229 | spin_unlock(&phba->hbalock); |
dea3101e JB |
3230 | |
3231 | if (unlikely(!ha_copy)) | |
3232 | return IRQ_NONE; | |
3233 | ||
3234 | work_ha_copy = ha_copy & phba->work_ha_mask; | |
3235 | ||
3236 | if (unlikely(work_ha_copy)) { | |
3237 | if (work_ha_copy & HA_LATT) { | |
3238 | if (phba->sli.sli_flag & LPFC_PROCESS_LA) { | |
3239 | /* | |
3240 | * Turn off Link Attention interrupts | |
3241 | * until CLEAR_LA done | |
3242 | */ | |
2e0fef85 | 3243 | spin_lock(&phba->hbalock); |
dea3101e JB |
3244 | phba->sli.sli_flag &= ~LPFC_PROCESS_LA; |
3245 | control = readl(phba->HCregaddr); | |
3246 | control &= ~HC_LAINT_ENA; | |
3247 | writel(control, phba->HCregaddr); | |
3248 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 | 3249 | spin_unlock(&phba->hbalock); |
dea3101e JB |
3250 | } |
3251 | else | |
3252 | work_ha_copy &= ~HA_LATT; | |
3253 | } | |
3254 | ||
3255 | if (work_ha_copy & ~(HA_ERATT|HA_MBATT|HA_LATT)) { | |
3256 | for (i = 0; i < phba->sli.num_rings; i++) { | |
3257 | if (work_ha_copy & (HA_RXATT << (4*i))) { | |
3258 | /* | |
3259 | * Turn off Slow Rings interrupts | |
3260 | */ | |
2e0fef85 | 3261 | spin_lock(&phba->hbalock); |
dea3101e JB |
3262 | control = readl(phba->HCregaddr); |
3263 | control &= ~(HC_R0INT_ENA << i); | |
3264 | writel(control, phba->HCregaddr); | |
3265 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 | 3266 | spin_unlock(&phba->hbalock); |
dea3101e JB |
3267 | } |
3268 | } | |
3269 | } | |
3270 | ||
3271 | if (work_ha_copy & HA_ERATT) { | |
2e0fef85 | 3272 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e JB |
3273 | /* |
3274 | * There was a link/board error. Read the | |
3275 | * status register to retrieve the error event | |
3276 | * and process it. | |
3277 | */ | |
3278 | phba->sli.slistat.err_attn_event++; | |
3279 | /* Save status info */ | |
3280 | phba->work_hs = readl(phba->HSregaddr); | |
3281 | phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); | |
3282 | phba->work_status[1] = readl(phba->MBslimaddr + 0xac); | |
3283 | ||
3284 | /* Clear Chip error bit */ | |
3285 | writel(HA_ERATT, phba->HAregaddr); | |
3286 | readl(phba->HAregaddr); /* flush */ | |
2e0fef85 | 3287 | phba->pport->stopped = 1; |
dea3101e JB |
3288 | } |
3289 | ||
2e0fef85 | 3290 | spin_lock(&phba->hbalock); |
dea3101e JB |
3291 | phba->work_ha |= work_ha_copy; |
3292 | if (phba->work_wait) | |
3293 | wake_up(phba->work_wait); | |
2e0fef85 | 3294 | spin_unlock(&phba->hbalock); |
dea3101e JB |
3295 | } |
3296 | ||
3297 | ha_copy &= ~(phba->work_ha_mask); | |
3298 | ||
3299 | /* | |
3300 | * Process all events on FCP ring. Take the optimized path for | |
3301 | * FCP IO. Any other IO is slow path and is handled by | |
3302 | * the worker thread. | |
3303 | */ | |
3304 | status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); | |
3305 | status >>= (4*LPFC_FCP_RING); | |
3306 | if (status & HA_RXATT) | |
3307 | lpfc_sli_handle_fast_ring_event(phba, | |
3308 | &phba->sli.ring[LPFC_FCP_RING], | |
3309 | status); | |
a4bc3379 JS |
3310 | |
3311 | if (phba->cfg_multi_ring_support == 2) { | |
3312 | /* | |
3313 | * Process all events on extra ring. Take the optimized path | |
3314 | * for extra ring IO. Any other IO is slow path and is handled | |
3315 | * by the worker thread. | |
3316 | */ | |
3317 | status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING))); | |
3318 | status >>= (4*LPFC_EXTRA_RING); | |
3319 | if (status & HA_RXATT) { | |
3320 | lpfc_sli_handle_fast_ring_event(phba, | |
3321 | &phba->sli.ring[LPFC_EXTRA_RING], | |
3322 | status); | |
3323 | } | |
3324 | } | |
dea3101e JB |
3325 | return IRQ_HANDLED; |
3326 | ||
3327 | } /* lpfc_intr_handler */ |