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dea3101e | 1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
c44ce173 | 3 | * Fibre Channel Host Bus Adapters. * |
1b32f6aa | 4 | * Copyright (C) 2004-2008 Emulex. All rights reserved. * |
c44ce173 | 5 | * EMULEX and SLI are trademarks of Emulex. * |
dea3101e | 6 | * www.emulex.com * |
c44ce173 | 7 | * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
dea3101e | 8 | * * |
9 | * This program is free software; you can redistribute it and/or * | |
c44ce173 JSEC |
10 | * modify it under the terms of version 2 of the GNU General * |
11 | * Public License as published by the Free Software Foundation. * | |
12 | * This program is distributed in the hope that it will be useful. * | |
13 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * | |
14 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * | |
15 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * | |
16 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * | |
17 | * TO BE LEGALLY INVALID. See the GNU General Public License for * | |
18 | * more details, a copy of which can be found in the file COPYING * | |
19 | * included with this package. * | |
dea3101e | 20 | *******************************************************************/ |
21 | ||
dea3101e | 22 | #include <linux/blkdev.h> |
23 | #include <linux/pci.h> | |
24 | #include <linux/interrupt.h> | |
25 | #include <linux/delay.h> | |
26 | ||
91886523 | 27 | #include <scsi/scsi.h> |
dea3101e | 28 | #include <scsi/scsi_cmnd.h> |
29 | #include <scsi/scsi_device.h> | |
30 | #include <scsi/scsi_host.h> | |
f888ba3c | 31 | #include <scsi/scsi_transport_fc.h> |
dea3101e | 32 | |
33 | #include "lpfc_hw.h" | |
34 | #include "lpfc_sli.h" | |
ea2151b4 | 35 | #include "lpfc_nl.h" |
dea3101e | 36 | #include "lpfc_disc.h" |
37 | #include "lpfc_scsi.h" | |
38 | #include "lpfc.h" | |
39 | #include "lpfc_crtn.h" | |
40 | #include "lpfc_logmsg.h" | |
41 | #include "lpfc_compat.h" | |
858c9f6c | 42 | #include "lpfc_debugfs.h" |
dea3101e | 43 | |
44 | /* | |
45 | * Define macro to log: Mailbox command x%x cannot issue Data | |
46 | * This allows multiple uses of lpfc_msgBlk0311 | |
47 | * w/o perturbing log msg utility. | |
48 | */ | |
92d7f7b0 | 49 | #define LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag) \ |
dea3101e | 50 | lpfc_printf_log(phba, \ |
51 | KERN_INFO, \ | |
52 | LOG_MBOX | LOG_SLI, \ | |
e8b62011 | 53 | "(%d):0311 Mailbox command x%x cannot " \ |
92d7f7b0 | 54 | "issue Data: x%x x%x x%x\n", \ |
92d7f7b0 JS |
55 | pmbox->vport ? pmbox->vport->vpi : 0, \ |
56 | pmbox->mb.mbxCommand, \ | |
2e0fef85 | 57 | phba->pport->port_state, \ |
dea3101e | 58 | psli->sli_flag, \ |
2e0fef85 | 59 | flag) |
dea3101e | 60 | |
61 | ||
62 | /* There are only four IOCB completion types. */ | |
63 | typedef enum _lpfc_iocb_type { | |
64 | LPFC_UNKNOWN_IOCB, | |
65 | LPFC_UNSOL_IOCB, | |
66 | LPFC_SOL_IOCB, | |
67 | LPFC_ABORT_IOCB | |
68 | } lpfc_iocb_type; | |
69 | ||
e59058c4 JS |
70 | /** |
71 | * lpfc_cmd_iocb: Get next command iocb entry in the ring. | |
72 | * @phba: Pointer to HBA context object. | |
73 | * @pring: Pointer to driver SLI ring object. | |
74 | * | |
75 | * This function returns pointer to next command iocb entry | |
76 | * in the command ring. The caller must hold hbalock to prevent | |
77 | * other threads consume the next command iocb. | |
78 | * SLI-2/SLI-3 provide different sized iocbs. | |
79 | **/ | |
ed957684 JS |
80 | static inline IOCB_t * |
81 | lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
82 | { | |
83 | return (IOCB_t *) (((char *) pring->cmdringaddr) + | |
84 | pring->cmdidx * phba->iocb_cmd_size); | |
85 | } | |
86 | ||
e59058c4 JS |
87 | /** |
88 | * lpfc_resp_iocb: Get next response iocb entry in the ring. | |
89 | * @phba: Pointer to HBA context object. | |
90 | * @pring: Pointer to driver SLI ring object. | |
91 | * | |
92 | * This function returns pointer to next response iocb entry | |
93 | * in the response ring. The caller must hold hbalock to make sure | |
94 | * that no other thread consume the next response iocb. | |
95 | * SLI-2/SLI-3 provide different sized iocbs. | |
96 | **/ | |
ed957684 JS |
97 | static inline IOCB_t * |
98 | lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
99 | { | |
100 | return (IOCB_t *) (((char *) pring->rspringaddr) + | |
101 | pring->rspidx * phba->iocb_rsp_size); | |
102 | } | |
103 | ||
e59058c4 JS |
104 | /** |
105 | * __lpfc_sli_get_iocbq: Allocates an iocb object from iocb pool. | |
106 | * @phba: Pointer to HBA context object. | |
107 | * | |
108 | * This function is called with hbalock held. This function | |
109 | * allocates a new driver iocb object from the iocb pool. If the | |
110 | * allocation is successful, it returns pointer to the newly | |
111 | * allocated iocb object else it returns NULL. | |
112 | **/ | |
2e0fef85 JS |
113 | static struct lpfc_iocbq * |
114 | __lpfc_sli_get_iocbq(struct lpfc_hba *phba) | |
0bd4ca25 JSEC |
115 | { |
116 | struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list; | |
117 | struct lpfc_iocbq * iocbq = NULL; | |
118 | ||
119 | list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list); | |
120 | return iocbq; | |
121 | } | |
122 | ||
e59058c4 JS |
123 | /** |
124 | * lpfc_sli_get_iocbq: Allocates an iocb object from iocb pool. | |
125 | * @phba: Pointer to HBA context object. | |
126 | * | |
127 | * This function is called with no lock held. This function | |
128 | * allocates a new driver iocb object from the iocb pool. If the | |
129 | * allocation is successful, it returns pointer to the newly | |
130 | * allocated iocb object else it returns NULL. | |
131 | **/ | |
2e0fef85 JS |
132 | struct lpfc_iocbq * |
133 | lpfc_sli_get_iocbq(struct lpfc_hba *phba) | |
134 | { | |
135 | struct lpfc_iocbq * iocbq = NULL; | |
136 | unsigned long iflags; | |
137 | ||
138 | spin_lock_irqsave(&phba->hbalock, iflags); | |
139 | iocbq = __lpfc_sli_get_iocbq(phba); | |
140 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
141 | return iocbq; | |
142 | } | |
143 | ||
e59058c4 JS |
144 | /** |
145 | * __lpfc_sli_release_iocbq: Release iocb to the iocb pool. | |
146 | * @phba: Pointer to HBA context object. | |
147 | * @iocbq: Pointer to driver iocb object. | |
148 | * | |
149 | * This function is called with hbalock held to release driver | |
150 | * iocb object to the iocb pool. The iotag in the iocb object | |
151 | * does not change for each use of the iocb object. This function | |
152 | * clears all other fields of the iocb object when it is freed. | |
153 | **/ | |
a6ababd2 | 154 | static void |
2e0fef85 | 155 | __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) |
604a3e30 | 156 | { |
2e0fef85 | 157 | size_t start_clean = offsetof(struct lpfc_iocbq, iocb); |
604a3e30 JB |
158 | |
159 | /* | |
160 | * Clean all volatile data fields, preserve iotag and node struct. | |
161 | */ | |
162 | memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean); | |
163 | list_add_tail(&iocbq->list, &phba->lpfc_iocb_list); | |
164 | } | |
165 | ||
e59058c4 JS |
166 | /** |
167 | * lpfc_sli_release_iocbq: Release iocb to the iocb pool. | |
168 | * @phba: Pointer to HBA context object. | |
169 | * @iocbq: Pointer to driver iocb object. | |
170 | * | |
171 | * This function is called with no lock held to release the iocb to | |
172 | * iocb pool. | |
173 | **/ | |
2e0fef85 JS |
174 | void |
175 | lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) | |
176 | { | |
177 | unsigned long iflags; | |
178 | ||
179 | /* | |
180 | * Clean all volatile data fields, preserve iotag and node struct. | |
181 | */ | |
182 | spin_lock_irqsave(&phba->hbalock, iflags); | |
183 | __lpfc_sli_release_iocbq(phba, iocbq); | |
184 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
185 | } | |
186 | ||
e59058c4 JS |
187 | /** |
188 | * lpfc_sli_iocb_cmd_type: Get the iocb type. | |
189 | * @iocb_cmnd : iocb command code. | |
190 | * | |
191 | * This function is called by ring event handler function to get the iocb type. | |
192 | * This function translates the iocb command to an iocb command type used to | |
193 | * decide the final disposition of each completed IOCB. | |
194 | * The function returns | |
195 | * LPFC_UNKNOWN_IOCB if it is an unsupported iocb | |
196 | * LPFC_SOL_IOCB if it is a solicited iocb completion | |
197 | * LPFC_ABORT_IOCB if it is an abort iocb | |
198 | * LPFC_UNSOL_IOCB if it is an unsolicited iocb | |
199 | * | |
200 | * The caller is not required to hold any lock. | |
201 | **/ | |
dea3101e | 202 | static lpfc_iocb_type |
203 | lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd) | |
204 | { | |
205 | lpfc_iocb_type type = LPFC_UNKNOWN_IOCB; | |
206 | ||
207 | if (iocb_cmnd > CMD_MAX_IOCB_CMD) | |
208 | return 0; | |
209 | ||
210 | switch (iocb_cmnd) { | |
211 | case CMD_XMIT_SEQUENCE_CR: | |
212 | case CMD_XMIT_SEQUENCE_CX: | |
213 | case CMD_XMIT_BCAST_CN: | |
214 | case CMD_XMIT_BCAST_CX: | |
215 | case CMD_ELS_REQUEST_CR: | |
216 | case CMD_ELS_REQUEST_CX: | |
217 | case CMD_CREATE_XRI_CR: | |
218 | case CMD_CREATE_XRI_CX: | |
219 | case CMD_GET_RPI_CN: | |
220 | case CMD_XMIT_ELS_RSP_CX: | |
221 | case CMD_GET_RPI_CR: | |
222 | case CMD_FCP_IWRITE_CR: | |
223 | case CMD_FCP_IWRITE_CX: | |
224 | case CMD_FCP_IREAD_CR: | |
225 | case CMD_FCP_IREAD_CX: | |
226 | case CMD_FCP_ICMND_CR: | |
227 | case CMD_FCP_ICMND_CX: | |
f5603511 JS |
228 | case CMD_FCP_TSEND_CX: |
229 | case CMD_FCP_TRSP_CX: | |
230 | case CMD_FCP_TRECEIVE_CX: | |
231 | case CMD_FCP_AUTO_TRSP_CX: | |
dea3101e | 232 | case CMD_ADAPTER_MSG: |
233 | case CMD_ADAPTER_DUMP: | |
234 | case CMD_XMIT_SEQUENCE64_CR: | |
235 | case CMD_XMIT_SEQUENCE64_CX: | |
236 | case CMD_XMIT_BCAST64_CN: | |
237 | case CMD_XMIT_BCAST64_CX: | |
238 | case CMD_ELS_REQUEST64_CR: | |
239 | case CMD_ELS_REQUEST64_CX: | |
240 | case CMD_FCP_IWRITE64_CR: | |
241 | case CMD_FCP_IWRITE64_CX: | |
242 | case CMD_FCP_IREAD64_CR: | |
243 | case CMD_FCP_IREAD64_CX: | |
244 | case CMD_FCP_ICMND64_CR: | |
245 | case CMD_FCP_ICMND64_CX: | |
f5603511 JS |
246 | case CMD_FCP_TSEND64_CX: |
247 | case CMD_FCP_TRSP64_CX: | |
248 | case CMD_FCP_TRECEIVE64_CX: | |
dea3101e | 249 | case CMD_GEN_REQUEST64_CR: |
250 | case CMD_GEN_REQUEST64_CX: | |
251 | case CMD_XMIT_ELS_RSP64_CX: | |
252 | type = LPFC_SOL_IOCB; | |
253 | break; | |
254 | case CMD_ABORT_XRI_CN: | |
255 | case CMD_ABORT_XRI_CX: | |
256 | case CMD_CLOSE_XRI_CN: | |
257 | case CMD_CLOSE_XRI_CX: | |
258 | case CMD_XRI_ABORTED_CX: | |
259 | case CMD_ABORT_MXRI64_CN: | |
260 | type = LPFC_ABORT_IOCB; | |
261 | break; | |
262 | case CMD_RCV_SEQUENCE_CX: | |
263 | case CMD_RCV_ELS_REQ_CX: | |
264 | case CMD_RCV_SEQUENCE64_CX: | |
265 | case CMD_RCV_ELS_REQ64_CX: | |
57127f15 | 266 | case CMD_ASYNC_STATUS: |
ed957684 JS |
267 | case CMD_IOCB_RCV_SEQ64_CX: |
268 | case CMD_IOCB_RCV_ELS64_CX: | |
269 | case CMD_IOCB_RCV_CONT64_CX: | |
3163f725 | 270 | case CMD_IOCB_RET_XRI64_CX: |
dea3101e | 271 | type = LPFC_UNSOL_IOCB; |
272 | break; | |
3163f725 JS |
273 | case CMD_IOCB_XMIT_MSEQ64_CR: |
274 | case CMD_IOCB_XMIT_MSEQ64_CX: | |
275 | case CMD_IOCB_RCV_SEQ_LIST64_CX: | |
276 | case CMD_IOCB_RCV_ELS_LIST64_CX: | |
277 | case CMD_IOCB_CLOSE_EXTENDED_CN: | |
278 | case CMD_IOCB_ABORT_EXTENDED_CN: | |
279 | case CMD_IOCB_RET_HBQE64_CN: | |
280 | case CMD_IOCB_FCP_IBIDIR64_CR: | |
281 | case CMD_IOCB_FCP_IBIDIR64_CX: | |
282 | case CMD_IOCB_FCP_ITASKMGT64_CX: | |
283 | case CMD_IOCB_LOGENTRY_CN: | |
284 | case CMD_IOCB_LOGENTRY_ASYNC_CN: | |
285 | printk("%s - Unhandled SLI-3 Command x%x\n", | |
cadbd4a5 | 286 | __func__, iocb_cmnd); |
3163f725 JS |
287 | type = LPFC_UNKNOWN_IOCB; |
288 | break; | |
dea3101e | 289 | default: |
290 | type = LPFC_UNKNOWN_IOCB; | |
291 | break; | |
292 | } | |
293 | ||
294 | return type; | |
295 | } | |
296 | ||
e59058c4 JS |
297 | /** |
298 | * lpfc_sli_ring_map: Issue config_ring mbox for all rings. | |
299 | * @phba: Pointer to HBA context object. | |
300 | * | |
301 | * This function is called from SLI initialization code | |
302 | * to configure every ring of the HBA's SLI interface. The | |
303 | * caller is not required to hold any lock. This function issues | |
304 | * a config_ring mailbox command for each ring. | |
305 | * This function returns zero if successful else returns a negative | |
306 | * error code. | |
307 | **/ | |
dea3101e | 308 | static int |
ed957684 | 309 | lpfc_sli_ring_map(struct lpfc_hba *phba) |
dea3101e | 310 | { |
311 | struct lpfc_sli *psli = &phba->sli; | |
ed957684 JS |
312 | LPFC_MBOXQ_t *pmb; |
313 | MAILBOX_t *pmbox; | |
314 | int i, rc, ret = 0; | |
dea3101e | 315 | |
ed957684 JS |
316 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
317 | if (!pmb) | |
318 | return -ENOMEM; | |
319 | pmbox = &pmb->mb; | |
320 | phba->link_state = LPFC_INIT_MBX_CMDS; | |
dea3101e | 321 | for (i = 0; i < psli->num_rings; i++) { |
dea3101e | 322 | lpfc_config_ring(phba, i, pmb); |
323 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
324 | if (rc != MBX_SUCCESS) { | |
92d7f7b0 | 325 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 326 | "0446 Adapter failed to init (%d), " |
dea3101e | 327 | "mbxCmd x%x CFG_RING, mbxStatus x%x, " |
328 | "ring %d\n", | |
e8b62011 JS |
329 | rc, pmbox->mbxCommand, |
330 | pmbox->mbxStatus, i); | |
2e0fef85 | 331 | phba->link_state = LPFC_HBA_ERROR; |
ed957684 JS |
332 | ret = -ENXIO; |
333 | break; | |
dea3101e | 334 | } |
335 | } | |
ed957684 JS |
336 | mempool_free(pmb, phba->mbox_mem_pool); |
337 | return ret; | |
dea3101e | 338 | } |
339 | ||
e59058c4 JS |
340 | /** |
341 | * lpfc_sli_ringtxcmpl_put: Adds new iocb to the txcmplq. | |
342 | * @phba: Pointer to HBA context object. | |
343 | * @pring: Pointer to driver SLI ring object. | |
344 | * @piocb: Pointer to the driver iocb object. | |
345 | * | |
346 | * This function is called with hbalock held. The function adds the | |
347 | * new iocb to txcmplq of the given ring. This function always returns | |
348 | * 0. If this function is called for ELS ring, this function checks if | |
349 | * there is a vport associated with the ELS command. This function also | |
350 | * starts els_tmofunc timer if this is an ELS command. | |
351 | **/ | |
dea3101e | 352 | static int |
2e0fef85 JS |
353 | lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
354 | struct lpfc_iocbq *piocb) | |
dea3101e | 355 | { |
dea3101e | 356 | list_add_tail(&piocb->list, &pring->txcmplq); |
357 | pring->txcmplq_cnt++; | |
92d7f7b0 JS |
358 | if ((unlikely(pring->ringno == LPFC_ELS_RING)) && |
359 | (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) && | |
360 | (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) { | |
361 | if (!piocb->vport) | |
362 | BUG(); | |
363 | else | |
364 | mod_timer(&piocb->vport->els_tmofunc, | |
365 | jiffies + HZ * (phba->fc_ratov << 1)); | |
366 | } | |
367 | ||
dea3101e | 368 | |
2e0fef85 | 369 | return 0; |
dea3101e | 370 | } |
371 | ||
e59058c4 JS |
372 | /** |
373 | * lpfc_sli_ringtx_get: Get first element of the txq. | |
374 | * @phba: Pointer to HBA context object. | |
375 | * @pring: Pointer to driver SLI ring object. | |
376 | * | |
377 | * This function is called with hbalock held to get next | |
378 | * iocb in txq of the given ring. If there is any iocb in | |
379 | * the txq, the function returns first iocb in the list after | |
380 | * removing the iocb from the list, else it returns NULL. | |
381 | **/ | |
dea3101e | 382 | static struct lpfc_iocbq * |
2e0fef85 | 383 | lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 384 | { |
dea3101e | 385 | struct lpfc_iocbq *cmd_iocb; |
386 | ||
858c9f6c JS |
387 | list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list); |
388 | if (cmd_iocb != NULL) | |
dea3101e | 389 | pring->txq_cnt--; |
2e0fef85 | 390 | return cmd_iocb; |
dea3101e | 391 | } |
392 | ||
e59058c4 JS |
393 | /** |
394 | * lpfc_sli_next_iocb_slot: Get next iocb slot in the ring. | |
395 | * @phba: Pointer to HBA context object. | |
396 | * @pring: Pointer to driver SLI ring object. | |
397 | * | |
398 | * This function is called with hbalock held and the caller must post the | |
399 | * iocb without releasing the lock. If the caller releases the lock, | |
400 | * iocb slot returned by the function is not guaranteed to be available. | |
401 | * The function returns pointer to the next available iocb slot if there | |
402 | * is available slot in the ring, else it returns NULL. | |
403 | * If the get index of the ring is ahead of the put index, the function | |
404 | * will post an error attention event to the worker thread to take the | |
405 | * HBA to offline state. | |
406 | **/ | |
dea3101e | 407 | static IOCB_t * |
408 | lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
409 | { | |
34b02dcd | 410 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
dea3101e | 411 | uint32_t max_cmd_idx = pring->numCiocb; |
dea3101e | 412 | if ((pring->next_cmdidx == pring->cmdidx) && |
413 | (++pring->next_cmdidx >= max_cmd_idx)) | |
414 | pring->next_cmdidx = 0; | |
415 | ||
416 | if (unlikely(pring->local_getidx == pring->next_cmdidx)) { | |
417 | ||
418 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
419 | ||
420 | if (unlikely(pring->local_getidx >= max_cmd_idx)) { | |
421 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 422 | "0315 Ring %d issue: portCmdGet %d " |
dea3101e | 423 | "is bigger then cmd ring %d\n", |
e8b62011 | 424 | pring->ringno, |
dea3101e | 425 | pring->local_getidx, max_cmd_idx); |
426 | ||
2e0fef85 | 427 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 428 | /* |
429 | * All error attention handlers are posted to | |
430 | * worker thread | |
431 | */ | |
432 | phba->work_ha |= HA_ERATT; | |
433 | phba->work_hs = HS_FFER3; | |
92d7f7b0 | 434 | |
5e9d9b82 | 435 | lpfc_worker_wake_up(phba); |
dea3101e | 436 | |
437 | return NULL; | |
438 | } | |
439 | ||
440 | if (pring->local_getidx == pring->next_cmdidx) | |
441 | return NULL; | |
442 | } | |
443 | ||
ed957684 | 444 | return lpfc_cmd_iocb(phba, pring); |
dea3101e | 445 | } |
446 | ||
e59058c4 JS |
447 | /** |
448 | * lpfc_sli_next_iotag: Get an iotag for the iocb. | |
449 | * @phba: Pointer to HBA context object. | |
450 | * @iocbq: Pointer to driver iocb object. | |
451 | * | |
452 | * This function gets an iotag for the iocb. If there is no unused iotag and | |
453 | * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup | |
454 | * array and assigns a new iotag. | |
455 | * The function returns the allocated iotag if successful, else returns zero. | |
456 | * Zero is not a valid iotag. | |
457 | * The caller is not required to hold any lock. | |
458 | **/ | |
604a3e30 | 459 | uint16_t |
2e0fef85 | 460 | lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) |
dea3101e | 461 | { |
2e0fef85 JS |
462 | struct lpfc_iocbq **new_arr; |
463 | struct lpfc_iocbq **old_arr; | |
604a3e30 JB |
464 | size_t new_len; |
465 | struct lpfc_sli *psli = &phba->sli; | |
466 | uint16_t iotag; | |
dea3101e | 467 | |
2e0fef85 | 468 | spin_lock_irq(&phba->hbalock); |
604a3e30 JB |
469 | iotag = psli->last_iotag; |
470 | if(++iotag < psli->iocbq_lookup_len) { | |
471 | psli->last_iotag = iotag; | |
472 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 473 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
474 | iocbq->iotag = iotag; |
475 | return iotag; | |
2e0fef85 | 476 | } else if (psli->iocbq_lookup_len < (0xffff |
604a3e30 JB |
477 | - LPFC_IOCBQ_LOOKUP_INCREMENT)) { |
478 | new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT; | |
2e0fef85 JS |
479 | spin_unlock_irq(&phba->hbalock); |
480 | new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *), | |
604a3e30 JB |
481 | GFP_KERNEL); |
482 | if (new_arr) { | |
2e0fef85 | 483 | spin_lock_irq(&phba->hbalock); |
604a3e30 JB |
484 | old_arr = psli->iocbq_lookup; |
485 | if (new_len <= psli->iocbq_lookup_len) { | |
486 | /* highly unprobable case */ | |
487 | kfree(new_arr); | |
488 | iotag = psli->last_iotag; | |
489 | if(++iotag < psli->iocbq_lookup_len) { | |
490 | psli->last_iotag = iotag; | |
491 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 492 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
493 | iocbq->iotag = iotag; |
494 | return iotag; | |
495 | } | |
2e0fef85 | 496 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
497 | return 0; |
498 | } | |
499 | if (psli->iocbq_lookup) | |
500 | memcpy(new_arr, old_arr, | |
501 | ((psli->last_iotag + 1) * | |
311464ec | 502 | sizeof (struct lpfc_iocbq *))); |
604a3e30 JB |
503 | psli->iocbq_lookup = new_arr; |
504 | psli->iocbq_lookup_len = new_len; | |
505 | psli->last_iotag = iotag; | |
506 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 507 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
508 | iocbq->iotag = iotag; |
509 | kfree(old_arr); | |
510 | return iotag; | |
511 | } | |
8f6d98d2 | 512 | } else |
2e0fef85 | 513 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 514 | |
604a3e30 | 515 | lpfc_printf_log(phba, KERN_ERR,LOG_SLI, |
e8b62011 JS |
516 | "0318 Failed to allocate IOTAG.last IOTAG is %d\n", |
517 | psli->last_iotag); | |
dea3101e | 518 | |
604a3e30 | 519 | return 0; |
dea3101e | 520 | } |
521 | ||
e59058c4 JS |
522 | /** |
523 | * lpfc_sli_submit_iocb: Submit an iocb to the firmware. | |
524 | * @phba: Pointer to HBA context object. | |
525 | * @pring: Pointer to driver SLI ring object. | |
526 | * @iocb: Pointer to iocb slot in the ring. | |
527 | * @nextiocb: Pointer to driver iocb object which need to be | |
528 | * posted to firmware. | |
529 | * | |
530 | * This function is called with hbalock held to post a new iocb to | |
531 | * the firmware. This function copies the new iocb to ring iocb slot and | |
532 | * updates the ring pointers. It adds the new iocb to txcmplq if there is | |
533 | * a completion call back for this iocb else the function will free the | |
534 | * iocb object. | |
535 | **/ | |
dea3101e | 536 | static void |
537 | lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
538 | IOCB_t *iocb, struct lpfc_iocbq *nextiocb) | |
539 | { | |
540 | /* | |
604a3e30 | 541 | * Set up an iotag |
dea3101e | 542 | */ |
604a3e30 | 543 | nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0; |
dea3101e | 544 | |
a58cbd52 JS |
545 | if (pring->ringno == LPFC_ELS_RING) { |
546 | lpfc_debugfs_slow_ring_trc(phba, | |
547 | "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x", | |
548 | *(((uint32_t *) &nextiocb->iocb) + 4), | |
549 | *(((uint32_t *) &nextiocb->iocb) + 6), | |
550 | *(((uint32_t *) &nextiocb->iocb) + 7)); | |
551 | } | |
552 | ||
dea3101e | 553 | /* |
554 | * Issue iocb command to adapter | |
555 | */ | |
92d7f7b0 | 556 | lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size); |
dea3101e | 557 | wmb(); |
558 | pring->stats.iocb_cmd++; | |
559 | ||
560 | /* | |
561 | * If there is no completion routine to call, we can release the | |
562 | * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF, | |
563 | * that have no rsp ring completion, iocb_cmpl MUST be NULL. | |
564 | */ | |
565 | if (nextiocb->iocb_cmpl) | |
566 | lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb); | |
604a3e30 | 567 | else |
2e0fef85 | 568 | __lpfc_sli_release_iocbq(phba, nextiocb); |
dea3101e | 569 | |
570 | /* | |
571 | * Let the HBA know what IOCB slot will be the next one the | |
572 | * driver will put a command into. | |
573 | */ | |
574 | pring->cmdidx = pring->next_cmdidx; | |
ed957684 | 575 | writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx); |
dea3101e | 576 | } |
577 | ||
e59058c4 JS |
578 | /** |
579 | * lpfc_sli_update_full_ring: Update the chip attention register. | |
580 | * @phba: Pointer to HBA context object. | |
581 | * @pring: Pointer to driver SLI ring object. | |
582 | * | |
583 | * The caller is not required to hold any lock for calling this function. | |
584 | * This function updates the chip attention bits for the ring to inform firmware | |
585 | * that there are pending work to be done for this ring and requests an | |
586 | * interrupt when there is space available in the ring. This function is | |
587 | * called when the driver is unable to post more iocbs to the ring due | |
588 | * to unavailability of space in the ring. | |
589 | **/ | |
dea3101e | 590 | static void |
2e0fef85 | 591 | lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 592 | { |
593 | int ringno = pring->ringno; | |
594 | ||
595 | pring->flag |= LPFC_CALL_RING_AVAILABLE; | |
596 | ||
597 | wmb(); | |
598 | ||
599 | /* | |
600 | * Set ring 'ringno' to SET R0CE_REQ in Chip Att register. | |
601 | * The HBA will tell us when an IOCB entry is available. | |
602 | */ | |
603 | writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr); | |
604 | readl(phba->CAregaddr); /* flush */ | |
605 | ||
606 | pring->stats.iocb_cmd_full++; | |
607 | } | |
608 | ||
e59058c4 JS |
609 | /** |
610 | * lpfc_sli_update_ring: Update chip attention register. | |
611 | * @phba: Pointer to HBA context object. | |
612 | * @pring: Pointer to driver SLI ring object. | |
613 | * | |
614 | * This function updates the chip attention register bit for the | |
615 | * given ring to inform HBA that there is more work to be done | |
616 | * in this ring. The caller is not required to hold any lock. | |
617 | **/ | |
dea3101e | 618 | static void |
2e0fef85 | 619 | lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 620 | { |
621 | int ringno = pring->ringno; | |
622 | ||
623 | /* | |
624 | * Tell the HBA that there is work to do in this ring. | |
625 | */ | |
34b02dcd JS |
626 | if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) { |
627 | wmb(); | |
628 | writel(CA_R0ATT << (ringno * 4), phba->CAregaddr); | |
629 | readl(phba->CAregaddr); /* flush */ | |
630 | } | |
dea3101e | 631 | } |
632 | ||
e59058c4 JS |
633 | /** |
634 | * lpfc_sli_resume_iocb: Process iocbs in the txq. | |
635 | * @phba: Pointer to HBA context object. | |
636 | * @pring: Pointer to driver SLI ring object. | |
637 | * | |
638 | * This function is called with hbalock held to post pending iocbs | |
639 | * in the txq to the firmware. This function is called when driver | |
640 | * detects space available in the ring. | |
641 | **/ | |
dea3101e | 642 | static void |
2e0fef85 | 643 | lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 644 | { |
645 | IOCB_t *iocb; | |
646 | struct lpfc_iocbq *nextiocb; | |
647 | ||
648 | /* | |
649 | * Check to see if: | |
650 | * (a) there is anything on the txq to send | |
651 | * (b) link is up | |
652 | * (c) link attention events can be processed (fcp ring only) | |
653 | * (d) IOCB processing is not blocked by the outstanding mbox command. | |
654 | */ | |
655 | if (pring->txq_cnt && | |
2e0fef85 | 656 | lpfc_is_link_up(phba) && |
dea3101e | 657 | (pring->ringno != phba->sli.fcp_ring || |
0b727fea | 658 | phba->sli.sli_flag & LPFC_PROCESS_LA)) { |
dea3101e | 659 | |
660 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && | |
661 | (nextiocb = lpfc_sli_ringtx_get(phba, pring))) | |
662 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
663 | ||
664 | if (iocb) | |
665 | lpfc_sli_update_ring(phba, pring); | |
666 | else | |
667 | lpfc_sli_update_full_ring(phba, pring); | |
668 | } | |
669 | ||
670 | return; | |
671 | } | |
672 | ||
e59058c4 JS |
673 | /** |
674 | * lpfc_sli_next_hbq_slot: Get next hbq entry for the HBQ. | |
675 | * @phba: Pointer to HBA context object. | |
676 | * @hbqno: HBQ number. | |
677 | * | |
678 | * This function is called with hbalock held to get the next | |
679 | * available slot for the given HBQ. If there is free slot | |
680 | * available for the HBQ it will return pointer to the next available | |
681 | * HBQ entry else it will return NULL. | |
682 | **/ | |
a6ababd2 | 683 | static struct lpfc_hbq_entry * |
ed957684 JS |
684 | lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno) |
685 | { | |
686 | struct hbq_s *hbqp = &phba->hbqs[hbqno]; | |
687 | ||
688 | if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx && | |
689 | ++hbqp->next_hbqPutIdx >= hbqp->entry_count) | |
690 | hbqp->next_hbqPutIdx = 0; | |
691 | ||
692 | if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) { | |
92d7f7b0 | 693 | uint32_t raw_index = phba->hbq_get[hbqno]; |
ed957684 JS |
694 | uint32_t getidx = le32_to_cpu(raw_index); |
695 | ||
696 | hbqp->local_hbqGetIdx = getidx; | |
697 | ||
698 | if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) { | |
699 | lpfc_printf_log(phba, KERN_ERR, | |
92d7f7b0 | 700 | LOG_SLI | LOG_VPORT, |
e8b62011 | 701 | "1802 HBQ %d: local_hbqGetIdx " |
ed957684 | 702 | "%u is > than hbqp->entry_count %u\n", |
e8b62011 | 703 | hbqno, hbqp->local_hbqGetIdx, |
ed957684 JS |
704 | hbqp->entry_count); |
705 | ||
706 | phba->link_state = LPFC_HBA_ERROR; | |
707 | return NULL; | |
708 | } | |
709 | ||
710 | if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx) | |
711 | return NULL; | |
712 | } | |
713 | ||
51ef4c26 JS |
714 | return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt + |
715 | hbqp->hbqPutIdx; | |
ed957684 JS |
716 | } |
717 | ||
e59058c4 JS |
718 | /** |
719 | * lpfc_sli_hbqbuf_free_all: Free all the hbq buffers. | |
720 | * @phba: Pointer to HBA context object. | |
721 | * | |
722 | * This function is called with no lock held to free all the | |
723 | * hbq buffers while uninitializing the SLI interface. It also | |
724 | * frees the HBQ buffers returned by the firmware but not yet | |
725 | * processed by the upper layers. | |
726 | **/ | |
ed957684 JS |
727 | void |
728 | lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba) | |
729 | { | |
92d7f7b0 JS |
730 | struct lpfc_dmabuf *dmabuf, *next_dmabuf; |
731 | struct hbq_dmabuf *hbq_buf; | |
3163f725 | 732 | unsigned long flags; |
51ef4c26 | 733 | int i, hbq_count; |
3163f725 | 734 | uint32_t hbqno; |
ed957684 | 735 | |
51ef4c26 | 736 | hbq_count = lpfc_sli_hbq_count(); |
ed957684 | 737 | /* Return all memory used by all HBQs */ |
3163f725 | 738 | spin_lock_irqsave(&phba->hbalock, flags); |
51ef4c26 JS |
739 | for (i = 0; i < hbq_count; ++i) { |
740 | list_for_each_entry_safe(dmabuf, next_dmabuf, | |
741 | &phba->hbqs[i].hbq_buffer_list, list) { | |
742 | hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf); | |
743 | list_del(&hbq_buf->dbuf.list); | |
744 | (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf); | |
745 | } | |
a8adb832 | 746 | phba->hbqs[i].buffer_count = 0; |
ed957684 | 747 | } |
3163f725 JS |
748 | /* Return all HBQ buffer that are in-fly */ |
749 | list_for_each_entry_safe(dmabuf, next_dmabuf, | |
750 | &phba->hbqbuf_in_list, list) { | |
751 | hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf); | |
752 | list_del(&hbq_buf->dbuf.list); | |
753 | if (hbq_buf->tag == -1) { | |
754 | (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer) | |
755 | (phba, hbq_buf); | |
756 | } else { | |
757 | hbqno = hbq_buf->tag >> 16; | |
758 | if (hbqno >= LPFC_MAX_HBQS) | |
759 | (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer) | |
760 | (phba, hbq_buf); | |
761 | else | |
762 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, | |
763 | hbq_buf); | |
764 | } | |
765 | } | |
766 | ||
767 | /* Mark the HBQs not in use */ | |
768 | phba->hbq_in_use = 0; | |
769 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
ed957684 JS |
770 | } |
771 | ||
e59058c4 JS |
772 | /** |
773 | * lpfc_sli_hbq_to_firmware: Post the hbq buffer to firmware. | |
774 | * @phba: Pointer to HBA context object. | |
775 | * @hbqno: HBQ number. | |
776 | * @hbq_buf: Pointer to HBQ buffer. | |
777 | * | |
778 | * This function is called with the hbalock held to post a | |
779 | * hbq buffer to the firmware. If the function finds an empty | |
780 | * slot in the HBQ, it will post the buffer. The function will return | |
781 | * pointer to the hbq entry if it successfully post the buffer | |
782 | * else it will return NULL. | |
783 | **/ | |
51ef4c26 | 784 | static struct lpfc_hbq_entry * |
ed957684 | 785 | lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno, |
92d7f7b0 | 786 | struct hbq_dmabuf *hbq_buf) |
ed957684 JS |
787 | { |
788 | struct lpfc_hbq_entry *hbqe; | |
92d7f7b0 | 789 | dma_addr_t physaddr = hbq_buf->dbuf.phys; |
ed957684 JS |
790 | |
791 | /* Get next HBQ entry slot to use */ | |
792 | hbqe = lpfc_sli_next_hbq_slot(phba, hbqno); | |
793 | if (hbqe) { | |
794 | struct hbq_s *hbqp = &phba->hbqs[hbqno]; | |
795 | ||
92d7f7b0 JS |
796 | hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr)); |
797 | hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr)); | |
51ef4c26 | 798 | hbqe->bde.tus.f.bdeSize = hbq_buf->size; |
ed957684 | 799 | hbqe->bde.tus.f.bdeFlags = 0; |
92d7f7b0 JS |
800 | hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w); |
801 | hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag); | |
802 | /* Sync SLIM */ | |
ed957684 JS |
803 | hbqp->hbqPutIdx = hbqp->next_hbqPutIdx; |
804 | writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno); | |
92d7f7b0 | 805 | /* flush */ |
ed957684 | 806 | readl(phba->hbq_put + hbqno); |
51ef4c26 | 807 | list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list); |
ed957684 | 808 | } |
51ef4c26 | 809 | return hbqe; |
ed957684 JS |
810 | } |
811 | ||
e59058c4 | 812 | /* HBQ for ELS and CT traffic. */ |
92d7f7b0 JS |
813 | static struct lpfc_hbq_init lpfc_els_hbq = { |
814 | .rn = 1, | |
815 | .entry_count = 200, | |
816 | .mask_count = 0, | |
817 | .profile = 0, | |
51ef4c26 | 818 | .ring_mask = (1 << LPFC_ELS_RING), |
92d7f7b0 JS |
819 | .buffer_count = 0, |
820 | .init_count = 20, | |
821 | .add_count = 5, | |
822 | }; | |
ed957684 | 823 | |
e59058c4 | 824 | /* HBQ for the extra ring if needed */ |
51ef4c26 JS |
825 | static struct lpfc_hbq_init lpfc_extra_hbq = { |
826 | .rn = 1, | |
827 | .entry_count = 200, | |
828 | .mask_count = 0, | |
829 | .profile = 0, | |
830 | .ring_mask = (1 << LPFC_EXTRA_RING), | |
831 | .buffer_count = 0, | |
832 | .init_count = 0, | |
833 | .add_count = 5, | |
834 | }; | |
835 | ||
e59058c4 | 836 | /* Array of HBQs */ |
78b2d852 | 837 | struct lpfc_hbq_init *lpfc_hbq_defs[] = { |
92d7f7b0 | 838 | &lpfc_els_hbq, |
51ef4c26 | 839 | &lpfc_extra_hbq, |
92d7f7b0 | 840 | }; |
ed957684 | 841 | |
e59058c4 JS |
842 | /** |
843 | * lpfc_sli_hbqbuf_fill_hbqs: Post more hbq buffers to HBQ. | |
844 | * @phba: Pointer to HBA context object. | |
845 | * @hbqno: HBQ number. | |
846 | * @count: Number of HBQ buffers to be posted. | |
847 | * | |
d7c255b2 JS |
848 | * This function is called with no lock held to post more hbq buffers to the |
849 | * given HBQ. The function returns the number of HBQ buffers successfully | |
850 | * posted. | |
e59058c4 | 851 | **/ |
311464ec | 852 | static int |
92d7f7b0 | 853 | lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count) |
ed957684 | 854 | { |
d7c255b2 | 855 | uint32_t i, posted = 0; |
3163f725 | 856 | unsigned long flags; |
92d7f7b0 | 857 | struct hbq_dmabuf *hbq_buffer; |
d7c255b2 | 858 | LIST_HEAD(hbq_buf_list); |
eafe1df9 | 859 | if (!phba->hbqs[hbqno].hbq_alloc_buffer) |
51ef4c26 | 860 | return 0; |
51ef4c26 | 861 | |
d7c255b2 JS |
862 | if ((phba->hbqs[hbqno].buffer_count + count) > |
863 | lpfc_hbq_defs[hbqno]->entry_count) | |
864 | count = lpfc_hbq_defs[hbqno]->entry_count - | |
865 | phba->hbqs[hbqno].buffer_count; | |
866 | if (!count) | |
867 | return 0; | |
868 | /* Allocate HBQ entries */ | |
869 | for (i = 0; i < count; i++) { | |
870 | hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba); | |
871 | if (!hbq_buffer) | |
872 | break; | |
873 | list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list); | |
874 | } | |
3163f725 JS |
875 | /* Check whether HBQ is still in use */ |
876 | spin_lock_irqsave(&phba->hbalock, flags); | |
eafe1df9 | 877 | if (!phba->hbq_in_use) |
d7c255b2 JS |
878 | goto err; |
879 | while (!list_empty(&hbq_buf_list)) { | |
880 | list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf, | |
881 | dbuf.list); | |
882 | hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count | | |
883 | (hbqno << 16)); | |
884 | if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) { | |
a8adb832 | 885 | phba->hbqs[hbqno].buffer_count++; |
d7c255b2 JS |
886 | posted++; |
887 | } else | |
51ef4c26 | 888 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); |
ed957684 | 889 | } |
3163f725 | 890 | spin_unlock_irqrestore(&phba->hbalock, flags); |
d7c255b2 JS |
891 | return posted; |
892 | err: | |
eafe1df9 | 893 | spin_unlock_irqrestore(&phba->hbalock, flags); |
d7c255b2 JS |
894 | while (!list_empty(&hbq_buf_list)) { |
895 | list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf, | |
896 | dbuf.list); | |
897 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); | |
898 | } | |
899 | return 0; | |
ed957684 JS |
900 | } |
901 | ||
e59058c4 JS |
902 | /** |
903 | * lpfc_sli_hbqbuf_add_hbqs: Post more HBQ buffers to firmware. | |
904 | * @phba: Pointer to HBA context object. | |
905 | * @qno: HBQ number. | |
906 | * | |
907 | * This function posts more buffers to the HBQ. This function | |
d7c255b2 JS |
908 | * is called with no lock held. The function returns the number of HBQ entries |
909 | * successfully allocated. | |
e59058c4 | 910 | **/ |
92d7f7b0 JS |
911 | int |
912 | lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno) | |
ed957684 | 913 | { |
92d7f7b0 JS |
914 | return(lpfc_sli_hbqbuf_fill_hbqs(phba, qno, |
915 | lpfc_hbq_defs[qno]->add_count)); | |
916 | } | |
ed957684 | 917 | |
e59058c4 JS |
918 | /** |
919 | * lpfc_sli_hbqbuf_init_hbqs: Post initial buffers to the HBQ. | |
920 | * @phba: Pointer to HBA context object. | |
921 | * @qno: HBQ queue number. | |
922 | * | |
923 | * This function is called from SLI initialization code path with | |
924 | * no lock held to post initial HBQ buffers to firmware. The | |
d7c255b2 | 925 | * function returns the number of HBQ entries successfully allocated. |
e59058c4 | 926 | **/ |
a6ababd2 | 927 | static int |
92d7f7b0 JS |
928 | lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno) |
929 | { | |
930 | return(lpfc_sli_hbqbuf_fill_hbqs(phba, qno, | |
931 | lpfc_hbq_defs[qno]->init_count)); | |
ed957684 JS |
932 | } |
933 | ||
e59058c4 JS |
934 | /** |
935 | * lpfc_sli_hbqbuf_find: Find the hbq buffer associated with a tag. | |
936 | * @phba: Pointer to HBA context object. | |
937 | * @tag: Tag of the hbq buffer. | |
938 | * | |
939 | * This function is called with hbalock held. This function searches | |
940 | * for the hbq buffer associated with the given tag in the hbq buffer | |
941 | * list. If it finds the hbq buffer, it returns the hbq_buffer other wise | |
942 | * it returns NULL. | |
943 | **/ | |
a6ababd2 | 944 | static struct hbq_dmabuf * |
92d7f7b0 | 945 | lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag) |
ed957684 | 946 | { |
92d7f7b0 JS |
947 | struct lpfc_dmabuf *d_buf; |
948 | struct hbq_dmabuf *hbq_buf; | |
51ef4c26 JS |
949 | uint32_t hbqno; |
950 | ||
951 | hbqno = tag >> 16; | |
a0a74e45 | 952 | if (hbqno >= LPFC_MAX_HBQS) |
51ef4c26 | 953 | return NULL; |
ed957684 | 954 | |
51ef4c26 | 955 | list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) { |
92d7f7b0 | 956 | hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); |
51ef4c26 | 957 | if (hbq_buf->tag == tag) { |
92d7f7b0 | 958 | return hbq_buf; |
ed957684 JS |
959 | } |
960 | } | |
92d7f7b0 | 961 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT, |
e8b62011 | 962 | "1803 Bad hbq tag. Data: x%x x%x\n", |
a8adb832 | 963 | tag, phba->hbqs[tag >> 16].buffer_count); |
92d7f7b0 | 964 | return NULL; |
ed957684 JS |
965 | } |
966 | ||
e59058c4 JS |
967 | /** |
968 | * lpfc_sli_free_hbq: Give back the hbq buffer to firmware. | |
969 | * @phba: Pointer to HBA context object. | |
970 | * @hbq_buffer: Pointer to HBQ buffer. | |
971 | * | |
972 | * This function is called with hbalock. This function gives back | |
973 | * the hbq buffer to firmware. If the HBQ does not have space to | |
974 | * post the buffer, it will free the buffer. | |
975 | **/ | |
ed957684 | 976 | void |
51ef4c26 | 977 | lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer) |
ed957684 JS |
978 | { |
979 | uint32_t hbqno; | |
980 | ||
51ef4c26 JS |
981 | if (hbq_buffer) { |
982 | hbqno = hbq_buffer->tag >> 16; | |
983 | if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) { | |
984 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); | |
985 | } | |
ed957684 JS |
986 | } |
987 | } | |
988 | ||
e59058c4 JS |
989 | /** |
990 | * lpfc_sli_chk_mbx_command: Check if the mailbox is a legitimate mailbox. | |
991 | * @mbxCommand: mailbox command code. | |
992 | * | |
993 | * This function is called by the mailbox event handler function to verify | |
994 | * that the completed mailbox command is a legitimate mailbox command. If the | |
995 | * completed mailbox is not known to the function, it will return MBX_SHUTDOWN | |
996 | * and the mailbox event handler will take the HBA offline. | |
997 | **/ | |
dea3101e | 998 | static int |
999 | lpfc_sli_chk_mbx_command(uint8_t mbxCommand) | |
1000 | { | |
1001 | uint8_t ret; | |
1002 | ||
1003 | switch (mbxCommand) { | |
1004 | case MBX_LOAD_SM: | |
1005 | case MBX_READ_NV: | |
1006 | case MBX_WRITE_NV: | |
a8adb832 | 1007 | case MBX_WRITE_VPARMS: |
dea3101e | 1008 | case MBX_RUN_BIU_DIAG: |
1009 | case MBX_INIT_LINK: | |
1010 | case MBX_DOWN_LINK: | |
1011 | case MBX_CONFIG_LINK: | |
1012 | case MBX_CONFIG_RING: | |
1013 | case MBX_RESET_RING: | |
1014 | case MBX_READ_CONFIG: | |
1015 | case MBX_READ_RCONFIG: | |
1016 | case MBX_READ_SPARM: | |
1017 | case MBX_READ_STATUS: | |
1018 | case MBX_READ_RPI: | |
1019 | case MBX_READ_XRI: | |
1020 | case MBX_READ_REV: | |
1021 | case MBX_READ_LNK_STAT: | |
1022 | case MBX_REG_LOGIN: | |
1023 | case MBX_UNREG_LOGIN: | |
1024 | case MBX_READ_LA: | |
1025 | case MBX_CLEAR_LA: | |
1026 | case MBX_DUMP_MEMORY: | |
1027 | case MBX_DUMP_CONTEXT: | |
1028 | case MBX_RUN_DIAGS: | |
1029 | case MBX_RESTART: | |
1030 | case MBX_UPDATE_CFG: | |
1031 | case MBX_DOWN_LOAD: | |
1032 | case MBX_DEL_LD_ENTRY: | |
1033 | case MBX_RUN_PROGRAM: | |
1034 | case MBX_SET_MASK: | |
09372820 | 1035 | case MBX_SET_VARIABLE: |
dea3101e | 1036 | case MBX_UNREG_D_ID: |
41415862 | 1037 | case MBX_KILL_BOARD: |
dea3101e | 1038 | case MBX_CONFIG_FARP: |
41415862 | 1039 | case MBX_BEACON: |
dea3101e | 1040 | case MBX_LOAD_AREA: |
1041 | case MBX_RUN_BIU_DIAG64: | |
1042 | case MBX_CONFIG_PORT: | |
1043 | case MBX_READ_SPARM64: | |
1044 | case MBX_READ_RPI64: | |
1045 | case MBX_REG_LOGIN64: | |
1046 | case MBX_READ_LA64: | |
09372820 | 1047 | case MBX_WRITE_WWN: |
dea3101e | 1048 | case MBX_SET_DEBUG: |
1049 | case MBX_LOAD_EXP_ROM: | |
57127f15 | 1050 | case MBX_ASYNCEVT_ENABLE: |
92d7f7b0 JS |
1051 | case MBX_REG_VPI: |
1052 | case MBX_UNREG_VPI: | |
858c9f6c | 1053 | case MBX_HEARTBEAT: |
84774a4d JS |
1054 | case MBX_PORT_CAPABILITIES: |
1055 | case MBX_PORT_IOV_CONTROL: | |
dea3101e | 1056 | ret = mbxCommand; |
1057 | break; | |
1058 | default: | |
1059 | ret = MBX_SHUTDOWN; | |
1060 | break; | |
1061 | } | |
2e0fef85 | 1062 | return ret; |
dea3101e | 1063 | } |
e59058c4 JS |
1064 | |
1065 | /** | |
1066 | * lpfc_sli_wake_mbox_wait: Completion handler for mbox issued from | |
1067 | * lpfc_sli_issue_mbox_wait. | |
1068 | * @phba: Pointer to HBA context object. | |
1069 | * @pmboxq: Pointer to mailbox command. | |
1070 | * | |
1071 | * This is completion handler function for mailbox commands issued from | |
1072 | * lpfc_sli_issue_mbox_wait function. This function is called by the | |
1073 | * mailbox event handler function with no lock held. This function | |
1074 | * will wake up thread waiting on the wait queue pointed by context1 | |
1075 | * of the mailbox. | |
1076 | **/ | |
dea3101e | 1077 | static void |
2e0fef85 | 1078 | lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) |
dea3101e | 1079 | { |
1080 | wait_queue_head_t *pdone_q; | |
858c9f6c | 1081 | unsigned long drvr_flag; |
dea3101e | 1082 | |
1083 | /* | |
1084 | * If pdone_q is empty, the driver thread gave up waiting and | |
1085 | * continued running. | |
1086 | */ | |
7054a606 | 1087 | pmboxq->mbox_flag |= LPFC_MBX_WAKE; |
858c9f6c | 1088 | spin_lock_irqsave(&phba->hbalock, drvr_flag); |
dea3101e | 1089 | pdone_q = (wait_queue_head_t *) pmboxq->context1; |
1090 | if (pdone_q) | |
1091 | wake_up_interruptible(pdone_q); | |
858c9f6c | 1092 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 1093 | return; |
1094 | } | |
1095 | ||
e59058c4 JS |
1096 | |
1097 | /** | |
1098 | * lpfc_sli_def_mbox_cmpl: Default mailbox completion handler. | |
1099 | * @phba: Pointer to HBA context object. | |
1100 | * @pmb: Pointer to mailbox object. | |
1101 | * | |
1102 | * This function is the default mailbox completion handler. It | |
1103 | * frees the memory resources associated with the completed mailbox | |
1104 | * command. If the completed command is a REG_LOGIN mailbox command, | |
1105 | * this function will issue a UREG_LOGIN to re-claim the RPI. | |
1106 | **/ | |
dea3101e | 1107 | void |
2e0fef85 | 1108 | lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
dea3101e | 1109 | { |
1110 | struct lpfc_dmabuf *mp; | |
7054a606 JS |
1111 | uint16_t rpi; |
1112 | int rc; | |
1113 | ||
dea3101e | 1114 | mp = (struct lpfc_dmabuf *) (pmb->context1); |
7054a606 | 1115 | |
dea3101e | 1116 | if (mp) { |
1117 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
1118 | kfree(mp); | |
1119 | } | |
7054a606 JS |
1120 | |
1121 | /* | |
1122 | * If a REG_LOGIN succeeded after node is destroyed or node | |
1123 | * is in re-discovery driver need to cleanup the RPI. | |
1124 | */ | |
2e0fef85 JS |
1125 | if (!(phba->pport->load_flag & FC_UNLOADING) && |
1126 | pmb->mb.mbxCommand == MBX_REG_LOGIN64 && | |
1127 | !pmb->mb.mbxStatus) { | |
7054a606 JS |
1128 | |
1129 | rpi = pmb->mb.un.varWords[0]; | |
92d7f7b0 JS |
1130 | lpfc_unreg_login(phba, pmb->mb.un.varRegLogin.vpi, rpi, pmb); |
1131 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
7054a606 JS |
1132 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
1133 | if (rc != MBX_NOT_FINISHED) | |
1134 | return; | |
1135 | } | |
1136 | ||
2e0fef85 | 1137 | mempool_free(pmb, phba->mbox_mem_pool); |
dea3101e | 1138 | return; |
1139 | } | |
1140 | ||
e59058c4 JS |
1141 | /** |
1142 | * lpfc_sli_handle_mb_event: Handle mailbox completions from firmware. | |
1143 | * @phba: Pointer to HBA context object. | |
1144 | * | |
1145 | * This function is called with no lock held. This function processes all | |
1146 | * the completed mailbox commands and gives it to upper layers. The interrupt | |
1147 | * service routine processes mailbox completion interrupt and adds completed | |
1148 | * mailbox commands to the mboxq_cmpl queue and signals the worker thread. | |
1149 | * Worker thread call lpfc_sli_handle_mb_event, which will return the | |
1150 | * completed mailbox commands in mboxq_cmpl queue to the upper layers. This | |
1151 | * function returns the mailbox commands to the upper layer by calling the | |
1152 | * completion handler function of each mailbox. | |
1153 | **/ | |
dea3101e | 1154 | int |
2e0fef85 | 1155 | lpfc_sli_handle_mb_event(struct lpfc_hba *phba) |
dea3101e | 1156 | { |
92d7f7b0 | 1157 | MAILBOX_t *pmbox; |
dea3101e | 1158 | LPFC_MBOXQ_t *pmb; |
92d7f7b0 JS |
1159 | int rc; |
1160 | LIST_HEAD(cmplq); | |
dea3101e | 1161 | |
1162 | phba->sli.slistat.mbox_event++; | |
1163 | ||
92d7f7b0 JS |
1164 | /* Get all completed mailboxe buffers into the cmplq */ |
1165 | spin_lock_irq(&phba->hbalock); | |
1166 | list_splice_init(&phba->sli.mboxq_cmpl, &cmplq); | |
1167 | spin_unlock_irq(&phba->hbalock); | |
dea3101e | 1168 | |
92d7f7b0 JS |
1169 | /* Get a Mailbox buffer to setup mailbox commands for callback */ |
1170 | do { | |
1171 | list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list); | |
1172 | if (pmb == NULL) | |
1173 | break; | |
2e0fef85 | 1174 | |
92d7f7b0 | 1175 | pmbox = &pmb->mb; |
dea3101e | 1176 | |
858c9f6c JS |
1177 | if (pmbox->mbxCommand != MBX_HEARTBEAT) { |
1178 | if (pmb->vport) { | |
1179 | lpfc_debugfs_disc_trc(pmb->vport, | |
1180 | LPFC_DISC_TRC_MBOX_VPORT, | |
1181 | "MBOX cmpl vport: cmd:x%x mb:x%x x%x", | |
1182 | (uint32_t)pmbox->mbxCommand, | |
1183 | pmbox->un.varWords[0], | |
1184 | pmbox->un.varWords[1]); | |
1185 | } | |
1186 | else { | |
1187 | lpfc_debugfs_disc_trc(phba->pport, | |
1188 | LPFC_DISC_TRC_MBOX, | |
1189 | "MBOX cmpl: cmd:x%x mb:x%x x%x", | |
1190 | (uint32_t)pmbox->mbxCommand, | |
1191 | pmbox->un.varWords[0], | |
1192 | pmbox->un.varWords[1]); | |
1193 | } | |
1194 | } | |
1195 | ||
dea3101e | 1196 | /* |
1197 | * It is a fatal error if unknown mbox command completion. | |
1198 | */ | |
1199 | if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) == | |
1200 | MBX_SHUTDOWN) { | |
dea3101e | 1201 | /* Unknow mailbox command compl */ |
92d7f7b0 | 1202 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
e8b62011 | 1203 | "(%d):0323 Unknown Mailbox command " |
92d7f7b0 | 1204 | "%x Cmpl\n", |
92d7f7b0 JS |
1205 | pmb->vport ? pmb->vport->vpi : 0, |
1206 | pmbox->mbxCommand); | |
2e0fef85 | 1207 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 1208 | phba->work_hs = HS_FFER3; |
1209 | lpfc_handle_eratt(phba); | |
92d7f7b0 | 1210 | continue; |
dea3101e | 1211 | } |
1212 | ||
dea3101e | 1213 | if (pmbox->mbxStatus) { |
1214 | phba->sli.slistat.mbox_stat_err++; | |
1215 | if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) { | |
1216 | /* Mbox cmd cmpl error - RETRYing */ | |
92d7f7b0 JS |
1217 | lpfc_printf_log(phba, KERN_INFO, |
1218 | LOG_MBOX | LOG_SLI, | |
e8b62011 | 1219 | "(%d):0305 Mbox cmd cmpl " |
92d7f7b0 JS |
1220 | "error - RETRYing Data: x%x " |
1221 | "x%x x%x x%x\n", | |
92d7f7b0 JS |
1222 | pmb->vport ? pmb->vport->vpi :0, |
1223 | pmbox->mbxCommand, | |
1224 | pmbox->mbxStatus, | |
1225 | pmbox->un.varWords[0], | |
1226 | pmb->vport->port_state); | |
dea3101e | 1227 | pmbox->mbxStatus = 0; |
1228 | pmbox->mbxOwner = OWN_HOST; | |
2e0fef85 | 1229 | spin_lock_irq(&phba->hbalock); |
dea3101e | 1230 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 1231 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 1232 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
1233 | if (rc == MBX_SUCCESS) | |
92d7f7b0 | 1234 | continue; |
dea3101e | 1235 | } |
1236 | } | |
1237 | ||
1238 | /* Mailbox cmd <cmd> Cmpl <cmpl> */ | |
92d7f7b0 | 1239 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
e8b62011 | 1240 | "(%d):0307 Mailbox cmd x%x Cmpl x%p " |
dea3101e | 1241 | "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n", |
92d7f7b0 | 1242 | pmb->vport ? pmb->vport->vpi : 0, |
dea3101e | 1243 | pmbox->mbxCommand, |
1244 | pmb->mbox_cmpl, | |
1245 | *((uint32_t *) pmbox), | |
1246 | pmbox->un.varWords[0], | |
1247 | pmbox->un.varWords[1], | |
1248 | pmbox->un.varWords[2], | |
1249 | pmbox->un.varWords[3], | |
1250 | pmbox->un.varWords[4], | |
1251 | pmbox->un.varWords[5], | |
1252 | pmbox->un.varWords[6], | |
1253 | pmbox->un.varWords[7]); | |
1254 | ||
92d7f7b0 | 1255 | if (pmb->mbox_cmpl) |
dea3101e | 1256 | pmb->mbox_cmpl(phba,pmb); |
92d7f7b0 JS |
1257 | } while (1); |
1258 | return 0; | |
1259 | } | |
dea3101e | 1260 | |
e59058c4 JS |
1261 | /** |
1262 | * lpfc_sli_replace_hbqbuff: Replace the HBQ buffer with a new buffer. | |
1263 | * @phba: Pointer to HBA context object. | |
1264 | * @tag: Tag for the HBQ buffer. | |
1265 | * | |
1266 | * This function is called from unsolicited event handler code path to get the | |
1267 | * HBQ buffer associated with an unsolicited iocb. This function is called with | |
1268 | * no lock held. It returns the buffer associated with the given tag and posts | |
d7c255b2 JS |
1269 | * another buffer to the firmware. Note that the new buffer must be allocated |
1270 | * before taking the hbalock and that the hba lock must be held until it is | |
1271 | * finished with the hbq entry swap. | |
e59058c4 | 1272 | **/ |
92d7f7b0 JS |
1273 | static struct lpfc_dmabuf * |
1274 | lpfc_sli_replace_hbqbuff(struct lpfc_hba *phba, uint32_t tag) | |
1275 | { | |
1276 | struct hbq_dmabuf *hbq_entry, *new_hbq_entry; | |
51ef4c26 JS |
1277 | uint32_t hbqno; |
1278 | void *virt; /* virtual address ptr */ | |
1279 | dma_addr_t phys; /* mapped address */ | |
3163f725 JS |
1280 | unsigned long flags; |
1281 | ||
d7c255b2 JS |
1282 | hbqno = tag >> 16; |
1283 | new_hbq_entry = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba); | |
3163f725 JS |
1284 | /* Check whether HBQ is still in use */ |
1285 | spin_lock_irqsave(&phba->hbalock, flags); | |
1286 | if (!phba->hbq_in_use) { | |
d7c255b2 JS |
1287 | if (new_hbq_entry) |
1288 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, | |
1289 | new_hbq_entry); | |
3163f725 JS |
1290 | spin_unlock_irqrestore(&phba->hbalock, flags); |
1291 | return NULL; | |
1292 | } | |
dea3101e | 1293 | |
92d7f7b0 | 1294 | hbq_entry = lpfc_sli_hbqbuf_find(phba, tag); |
3163f725 | 1295 | if (hbq_entry == NULL) { |
d7c255b2 JS |
1296 | if (new_hbq_entry) |
1297 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, | |
1298 | new_hbq_entry); | |
3163f725 | 1299 | spin_unlock_irqrestore(&phba->hbalock, flags); |
92d7f7b0 | 1300 | return NULL; |
3163f725 | 1301 | } |
92d7f7b0 | 1302 | list_del(&hbq_entry->dbuf.list); |
51ef4c26 | 1303 | |
3163f725 JS |
1304 | if (new_hbq_entry == NULL) { |
1305 | list_add_tail(&hbq_entry->dbuf.list, &phba->hbqbuf_in_list); | |
1306 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
92d7f7b0 | 1307 | return &hbq_entry->dbuf; |
3163f725 | 1308 | } |
92d7f7b0 | 1309 | new_hbq_entry->tag = -1; |
51ef4c26 JS |
1310 | phys = new_hbq_entry->dbuf.phys; |
1311 | virt = new_hbq_entry->dbuf.virt; | |
1312 | new_hbq_entry->dbuf.phys = hbq_entry->dbuf.phys; | |
1313 | new_hbq_entry->dbuf.virt = hbq_entry->dbuf.virt; | |
1314 | hbq_entry->dbuf.phys = phys; | |
1315 | hbq_entry->dbuf.virt = virt; | |
92d7f7b0 | 1316 | lpfc_sli_free_hbq(phba, hbq_entry); |
3163f725 JS |
1317 | list_add_tail(&new_hbq_entry->dbuf.list, &phba->hbqbuf_in_list); |
1318 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
1319 | ||
92d7f7b0 | 1320 | return &new_hbq_entry->dbuf; |
dea3101e | 1321 | } |
92d7f7b0 | 1322 | |
e59058c4 JS |
1323 | /** |
1324 | * lpfc_sli_get_buff: Get the buffer associated with the buffer tag. | |
1325 | * @phba: Pointer to HBA context object. | |
1326 | * @pring: Pointer to driver SLI ring object. | |
1327 | * @tag: buffer tag. | |
1328 | * | |
1329 | * This function is called with no lock held. When QUE_BUFTAG_BIT bit | |
1330 | * is set in the tag the buffer is posted for a particular exchange, | |
1331 | * the function will return the buffer without replacing the buffer. | |
1332 | * If the buffer is for unsolicited ELS or CT traffic, this function | |
1333 | * returns the buffer and also posts another buffer to the firmware. | |
1334 | **/ | |
76bb24ef JS |
1335 | static struct lpfc_dmabuf * |
1336 | lpfc_sli_get_buff(struct lpfc_hba *phba, | |
1337 | struct lpfc_sli_ring *pring, | |
1338 | uint32_t tag) | |
1339 | { | |
1340 | if (tag & QUE_BUFTAG_BIT) | |
1341 | return lpfc_sli_ring_taggedbuf_get(phba, pring, tag); | |
1342 | else | |
1343 | return lpfc_sli_replace_hbqbuff(phba, tag); | |
1344 | } | |
57127f15 | 1345 | |
e59058c4 JS |
1346 | |
1347 | /** | |
1348 | * lpfc_sli_process_unsol_iocb: Unsolicited iocb handler. | |
1349 | * @phba: Pointer to HBA context object. | |
1350 | * @pring: Pointer to driver SLI ring object. | |
1351 | * @saveq: Pointer to the unsolicited iocb. | |
1352 | * | |
1353 | * This function is called with no lock held by the ring event handler | |
1354 | * when there is an unsolicited iocb posted to the response ring by the | |
1355 | * firmware. This function gets the buffer associated with the iocbs | |
1356 | * and calls the event handler for the ring. This function handles both | |
1357 | * qring buffers and hbq buffers. | |
1358 | * When the function returns 1 the caller can free the iocb object otherwise | |
1359 | * upper layer functions will free the iocb objects. | |
1360 | **/ | |
dea3101e | 1361 | static int |
1362 | lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
1363 | struct lpfc_iocbq *saveq) | |
1364 | { | |
1365 | IOCB_t * irsp; | |
1366 | WORD5 * w5p; | |
1367 | uint32_t Rctl, Type; | |
1368 | uint32_t match, i; | |
76bb24ef | 1369 | struct lpfc_iocbq *iocbq; |
3163f725 | 1370 | struct lpfc_dmabuf *dmzbuf; |
dea3101e | 1371 | |
1372 | match = 0; | |
1373 | irsp = &(saveq->iocb); | |
57127f15 | 1374 | |
9c2face6 JS |
1375 | if (irsp->ulpStatus == IOSTAT_NEED_BUFFER) |
1376 | return 1; | |
57127f15 JS |
1377 | if (irsp->ulpCommand == CMD_ASYNC_STATUS) { |
1378 | if (pring->lpfc_sli_rcv_async_status) | |
1379 | pring->lpfc_sli_rcv_async_status(phba, pring, saveq); | |
1380 | else | |
1381 | lpfc_printf_log(phba, | |
1382 | KERN_WARNING, | |
1383 | LOG_SLI, | |
1384 | "0316 Ring %d handler: unexpected " | |
1385 | "ASYNC_STATUS iocb received evt_code " | |
1386 | "0x%x\n", | |
1387 | pring->ringno, | |
1388 | irsp->un.asyncstat.evt_code); | |
1389 | return 1; | |
1390 | } | |
1391 | ||
3163f725 JS |
1392 | if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) && |
1393 | (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) { | |
1394 | if (irsp->ulpBdeCount > 0) { | |
1395 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
1396 | irsp->un.ulpWord[3]); | |
1397 | lpfc_in_buf_free(phba, dmzbuf); | |
1398 | } | |
1399 | ||
1400 | if (irsp->ulpBdeCount > 1) { | |
1401 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
1402 | irsp->unsli3.sli3Words[3]); | |
1403 | lpfc_in_buf_free(phba, dmzbuf); | |
1404 | } | |
1405 | ||
1406 | if (irsp->ulpBdeCount > 2) { | |
1407 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
1408 | irsp->unsli3.sli3Words[7]); | |
1409 | lpfc_in_buf_free(phba, dmzbuf); | |
1410 | } | |
1411 | ||
1412 | return 1; | |
1413 | } | |
1414 | ||
92d7f7b0 | 1415 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
76bb24ef JS |
1416 | if (irsp->ulpBdeCount != 0) { |
1417 | saveq->context2 = lpfc_sli_get_buff(phba, pring, | |
1418 | irsp->un.ulpWord[3]); | |
1419 | if (!saveq->context2) | |
1420 | lpfc_printf_log(phba, | |
1421 | KERN_ERR, | |
1422 | LOG_SLI, | |
1423 | "0341 Ring %d Cannot find buffer for " | |
1424 | "an unsolicited iocb. tag 0x%x\n", | |
1425 | pring->ringno, | |
1426 | irsp->un.ulpWord[3]); | |
76bb24ef JS |
1427 | } |
1428 | if (irsp->ulpBdeCount == 2) { | |
1429 | saveq->context3 = lpfc_sli_get_buff(phba, pring, | |
1430 | irsp->unsli3.sli3Words[7]); | |
1431 | if (!saveq->context3) | |
1432 | lpfc_printf_log(phba, | |
1433 | KERN_ERR, | |
1434 | LOG_SLI, | |
1435 | "0342 Ring %d Cannot find buffer for an" | |
1436 | " unsolicited iocb. tag 0x%x\n", | |
1437 | pring->ringno, | |
1438 | irsp->unsli3.sli3Words[7]); | |
1439 | } | |
1440 | list_for_each_entry(iocbq, &saveq->list, list) { | |
76bb24ef | 1441 | irsp = &(iocbq->iocb); |
76bb24ef JS |
1442 | if (irsp->ulpBdeCount != 0) { |
1443 | iocbq->context2 = lpfc_sli_get_buff(phba, pring, | |
1444 | irsp->un.ulpWord[3]); | |
9c2face6 | 1445 | if (!iocbq->context2) |
76bb24ef JS |
1446 | lpfc_printf_log(phba, |
1447 | KERN_ERR, | |
1448 | LOG_SLI, | |
1449 | "0343 Ring %d Cannot find " | |
1450 | "buffer for an unsolicited iocb" | |
1451 | ". tag 0x%x\n", pring->ringno, | |
92d7f7b0 | 1452 | irsp->un.ulpWord[3]); |
76bb24ef JS |
1453 | } |
1454 | if (irsp->ulpBdeCount == 2) { | |
1455 | iocbq->context3 = lpfc_sli_get_buff(phba, pring, | |
51ef4c26 | 1456 | irsp->unsli3.sli3Words[7]); |
9c2face6 | 1457 | if (!iocbq->context3) |
76bb24ef JS |
1458 | lpfc_printf_log(phba, |
1459 | KERN_ERR, | |
1460 | LOG_SLI, | |
1461 | "0344 Ring %d Cannot find " | |
1462 | "buffer for an unsolicited " | |
1463 | "iocb. tag 0x%x\n", | |
1464 | pring->ringno, | |
1465 | irsp->unsli3.sli3Words[7]); | |
1466 | } | |
1467 | } | |
92d7f7b0 | 1468 | } |
9c2face6 JS |
1469 | if (irsp->ulpBdeCount != 0 && |
1470 | (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX || | |
1471 | irsp->ulpStatus == IOSTAT_INTERMED_RSP)) { | |
1472 | int found = 0; | |
1473 | ||
1474 | /* search continue save q for same XRI */ | |
1475 | list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) { | |
1476 | if (iocbq->iocb.ulpContext == saveq->iocb.ulpContext) { | |
1477 | list_add_tail(&saveq->list, &iocbq->list); | |
1478 | found = 1; | |
1479 | break; | |
1480 | } | |
1481 | } | |
1482 | if (!found) | |
1483 | list_add_tail(&saveq->clist, | |
1484 | &pring->iocb_continue_saveq); | |
1485 | if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) { | |
1486 | list_del_init(&iocbq->clist); | |
1487 | saveq = iocbq; | |
1488 | irsp = &(saveq->iocb); | |
1489 | } else | |
1490 | return 0; | |
1491 | } | |
1492 | if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) || | |
1493 | (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) || | |
1494 | (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) { | |
1495 | Rctl = FC_ELS_REQ; | |
1496 | Type = FC_ELS_DATA; | |
1497 | } else { | |
1498 | w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]); | |
1499 | Rctl = w5p->hcsw.Rctl; | |
1500 | Type = w5p->hcsw.Type; | |
1501 | ||
1502 | /* Firmware Workaround */ | |
1503 | if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) && | |
1504 | (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX || | |
1505 | irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) { | |
1506 | Rctl = FC_ELS_REQ; | |
1507 | Type = FC_ELS_DATA; | |
1508 | w5p->hcsw.Rctl = Rctl; | |
1509 | w5p->hcsw.Type = Type; | |
1510 | } | |
1511 | } | |
92d7f7b0 | 1512 | |
dea3101e | 1513 | /* unSolicited Responses */ |
1514 | if (pring->prt[0].profile) { | |
cf5bf97e JW |
1515 | if (pring->prt[0].lpfc_sli_rcv_unsol_event) |
1516 | (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring, | |
1517 | saveq); | |
dea3101e | 1518 | match = 1; |
1519 | } else { | |
1520 | /* We must search, based on rctl / type | |
1521 | for the right routine */ | |
9c2face6 JS |
1522 | for (i = 0; i < pring->num_mask; i++) { |
1523 | if ((pring->prt[i].rctl == Rctl) | |
1524 | && (pring->prt[i].type == Type)) { | |
cf5bf97e JW |
1525 | if (pring->prt[i].lpfc_sli_rcv_unsol_event) |
1526 | (pring->prt[i].lpfc_sli_rcv_unsol_event) | |
1527 | (phba, pring, saveq); | |
dea3101e | 1528 | match = 1; |
1529 | break; | |
1530 | } | |
1531 | } | |
1532 | } | |
1533 | if (match == 0) { | |
1534 | /* Unexpected Rctl / Type received */ | |
1535 | /* Ring <ringno> handler: unexpected | |
1536 | Rctl <Rctl> Type <Type> received */ | |
92d7f7b0 | 1537 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
e8b62011 | 1538 | "0313 Ring %d handler: unexpected Rctl x%x " |
92d7f7b0 | 1539 | "Type x%x received\n", |
e8b62011 | 1540 | pring->ringno, Rctl, Type); |
dea3101e | 1541 | } |
92d7f7b0 | 1542 | return 1; |
dea3101e | 1543 | } |
1544 | ||
e59058c4 JS |
1545 | /** |
1546 | * lpfc_sli_iocbq_lookup: Find command iocb for the given response iocb. | |
1547 | * @phba: Pointer to HBA context object. | |
1548 | * @pring: Pointer to driver SLI ring object. | |
1549 | * @prspiocb: Pointer to response iocb object. | |
1550 | * | |
1551 | * This function looks up the iocb_lookup table to get the command iocb | |
1552 | * corresponding to the given response iocb using the iotag of the | |
1553 | * response iocb. This function is called with the hbalock held. | |
1554 | * This function returns the command iocb object if it finds the command | |
1555 | * iocb else returns NULL. | |
1556 | **/ | |
dea3101e | 1557 | static struct lpfc_iocbq * |
2e0fef85 JS |
1558 | lpfc_sli_iocbq_lookup(struct lpfc_hba *phba, |
1559 | struct lpfc_sli_ring *pring, | |
1560 | struct lpfc_iocbq *prspiocb) | |
dea3101e | 1561 | { |
dea3101e | 1562 | struct lpfc_iocbq *cmd_iocb = NULL; |
1563 | uint16_t iotag; | |
1564 | ||
604a3e30 JB |
1565 | iotag = prspiocb->iocb.ulpIoTag; |
1566 | ||
1567 | if (iotag != 0 && iotag <= phba->sli.last_iotag) { | |
1568 | cmd_iocb = phba->sli.iocbq_lookup[iotag]; | |
92d7f7b0 | 1569 | list_del_init(&cmd_iocb->list); |
604a3e30 JB |
1570 | pring->txcmplq_cnt--; |
1571 | return cmd_iocb; | |
dea3101e | 1572 | } |
1573 | ||
dea3101e | 1574 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 | 1575 | "0317 iotag x%x is out off " |
604a3e30 | 1576 | "range: max iotag x%x wd0 x%x\n", |
e8b62011 | 1577 | iotag, phba->sli.last_iotag, |
604a3e30 | 1578 | *(((uint32_t *) &prspiocb->iocb) + 7)); |
dea3101e | 1579 | return NULL; |
1580 | } | |
1581 | ||
e59058c4 JS |
1582 | /** |
1583 | * lpfc_sli_process_sol_iocb: process solicited iocb completion. | |
1584 | * @phba: Pointer to HBA context object. | |
1585 | * @pring: Pointer to driver SLI ring object. | |
1586 | * @saveq: Pointer to the response iocb to be processed. | |
1587 | * | |
1588 | * This function is called by the ring event handler for non-fcp | |
1589 | * rings when there is a new response iocb in the response ring. | |
1590 | * The caller is not required to hold any locks. This function | |
1591 | * gets the command iocb associated with the response iocb and | |
1592 | * calls the completion handler for the command iocb. If there | |
1593 | * is no completion handler, the function will free the resources | |
1594 | * associated with command iocb. If the response iocb is for | |
1595 | * an already aborted command iocb, the status of the completion | |
1596 | * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED. | |
1597 | * This function always returns 1. | |
1598 | **/ | |
dea3101e | 1599 | static int |
2e0fef85 | 1600 | lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
dea3101e | 1601 | struct lpfc_iocbq *saveq) |
1602 | { | |
2e0fef85 | 1603 | struct lpfc_iocbq *cmdiocbp; |
dea3101e | 1604 | int rc = 1; |
1605 | unsigned long iflag; | |
1606 | ||
1607 | /* Based on the iotag field, get the cmd IOCB from the txcmplq */ | |
2e0fef85 | 1608 | spin_lock_irqsave(&phba->hbalock, iflag); |
604a3e30 | 1609 | cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq); |
2e0fef85 JS |
1610 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
1611 | ||
dea3101e | 1612 | if (cmdiocbp) { |
1613 | if (cmdiocbp->iocb_cmpl) { | |
ea2151b4 JS |
1614 | /* |
1615 | * If an ELS command failed send an event to mgmt | |
1616 | * application. | |
1617 | */ | |
1618 | if (saveq->iocb.ulpStatus && | |
1619 | (pring->ringno == LPFC_ELS_RING) && | |
1620 | (cmdiocbp->iocb.ulpCommand == | |
1621 | CMD_ELS_REQUEST64_CR)) | |
1622 | lpfc_send_els_failure_event(phba, | |
1623 | cmdiocbp, saveq); | |
1624 | ||
dea3101e | 1625 | /* |
1626 | * Post all ELS completions to the worker thread. | |
1627 | * All other are passed to the completion callback. | |
1628 | */ | |
1629 | if (pring->ringno == LPFC_ELS_RING) { | |
07951076 JS |
1630 | if (cmdiocbp->iocb_flag & LPFC_DRIVER_ABORTED) { |
1631 | cmdiocbp->iocb_flag &= | |
1632 | ~LPFC_DRIVER_ABORTED; | |
1633 | saveq->iocb.ulpStatus = | |
1634 | IOSTAT_LOCAL_REJECT; | |
1635 | saveq->iocb.un.ulpWord[4] = | |
1636 | IOERR_SLI_ABORTED; | |
0ff10d46 JS |
1637 | |
1638 | /* Firmware could still be in progress | |
1639 | * of DMAing payload, so don't free data | |
1640 | * buffer till after a hbeat. | |
1641 | */ | |
1642 | saveq->iocb_flag |= LPFC_DELAY_MEM_FREE; | |
07951076 | 1643 | } |
dea3101e | 1644 | } |
2e0fef85 | 1645 | (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq); |
604a3e30 JB |
1646 | } else |
1647 | lpfc_sli_release_iocbq(phba, cmdiocbp); | |
dea3101e | 1648 | } else { |
1649 | /* | |
1650 | * Unknown initiating command based on the response iotag. | |
1651 | * This could be the case on the ELS ring because of | |
1652 | * lpfc_els_abort(). | |
1653 | */ | |
1654 | if (pring->ringno != LPFC_ELS_RING) { | |
1655 | /* | |
1656 | * Ring <ringno> handler: unexpected completion IoTag | |
1657 | * <IoTag> | |
1658 | */ | |
e8b62011 JS |
1659 | lpfc_printf_vlog(cmdiocbp->vport, KERN_WARNING, LOG_SLI, |
1660 | "0322 Ring %d handler: " | |
1661 | "unexpected completion IoTag x%x " | |
1662 | "Data: x%x x%x x%x x%x\n", | |
1663 | pring->ringno, | |
1664 | saveq->iocb.ulpIoTag, | |
1665 | saveq->iocb.ulpStatus, | |
1666 | saveq->iocb.un.ulpWord[4], | |
1667 | saveq->iocb.ulpCommand, | |
1668 | saveq->iocb.ulpContext); | |
dea3101e | 1669 | } |
1670 | } | |
68876920 | 1671 | |
dea3101e | 1672 | return rc; |
1673 | } | |
1674 | ||
e59058c4 JS |
1675 | /** |
1676 | * lpfc_sli_rsp_pointers_error: Response ring pointer error handler. | |
1677 | * @phba: Pointer to HBA context object. | |
1678 | * @pring: Pointer to driver SLI ring object. | |
1679 | * | |
1680 | * This function is called from the iocb ring event handlers when | |
1681 | * put pointer is ahead of the get pointer for a ring. This function signal | |
1682 | * an error attention condition to the worker thread and the worker | |
1683 | * thread will transition the HBA to offline state. | |
1684 | **/ | |
2e0fef85 JS |
1685 | static void |
1686 | lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
875fbdfe | 1687 | { |
34b02dcd | 1688 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
875fbdfe JSEC |
1689 | /* |
1690 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger then | |
1691 | * rsp ring <portRspMax> | |
1692 | */ | |
1693 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 1694 | "0312 Ring %d handler: portRspPut %d " |
875fbdfe | 1695 | "is bigger then rsp ring %d\n", |
e8b62011 | 1696 | pring->ringno, le32_to_cpu(pgp->rspPutInx), |
875fbdfe JSEC |
1697 | pring->numRiocb); |
1698 | ||
2e0fef85 | 1699 | phba->link_state = LPFC_HBA_ERROR; |
875fbdfe JSEC |
1700 | |
1701 | /* | |
1702 | * All error attention handlers are posted to | |
1703 | * worker thread | |
1704 | */ | |
1705 | phba->work_ha |= HA_ERATT; | |
1706 | phba->work_hs = HS_FFER3; | |
92d7f7b0 | 1707 | |
5e9d9b82 | 1708 | lpfc_worker_wake_up(phba); |
875fbdfe JSEC |
1709 | |
1710 | return; | |
1711 | } | |
1712 | ||
9399627f JS |
1713 | /** |
1714 | * lpfc_poll_eratt: Error attention polling timer timeout handler. | |
1715 | * @ptr: Pointer to address of HBA context object. | |
1716 | * | |
1717 | * This function is invoked by the Error Attention polling timer when the | |
1718 | * timer times out. It will check the SLI Error Attention register for | |
1719 | * possible attention events. If so, it will post an Error Attention event | |
1720 | * and wake up worker thread to process it. Otherwise, it will set up the | |
1721 | * Error Attention polling timer for the next poll. | |
1722 | **/ | |
1723 | void lpfc_poll_eratt(unsigned long ptr) | |
1724 | { | |
1725 | struct lpfc_hba *phba; | |
1726 | uint32_t eratt = 0; | |
1727 | ||
1728 | phba = (struct lpfc_hba *)ptr; | |
1729 | ||
1730 | /* Check chip HA register for error event */ | |
1731 | eratt = lpfc_sli_check_eratt(phba); | |
1732 | ||
1733 | if (eratt) | |
1734 | /* Tell the worker thread there is work to do */ | |
1735 | lpfc_worker_wake_up(phba); | |
1736 | else | |
1737 | /* Restart the timer for next eratt poll */ | |
1738 | mod_timer(&phba->eratt_poll, jiffies + | |
1739 | HZ * LPFC_ERATT_POLL_INTERVAL); | |
1740 | return; | |
1741 | } | |
1742 | ||
e59058c4 JS |
1743 | /** |
1744 | * lpfc_sli_poll_fcp_ring: Handle FCP ring completion in polling mode. | |
1745 | * @phba: Pointer to HBA context object. | |
1746 | * | |
1747 | * This function is called from lpfc_queuecommand, lpfc_poll_timeout, | |
1748 | * lpfc_abort_handler and lpfc_slave_configure when FCP_RING_POLLING | |
1749 | * is enabled. | |
1750 | * | |
1751 | * The caller does not hold any lock. | |
1752 | * The function processes each response iocb in the response ring until it | |
1753 | * finds an iocb with LE bit set and chains all the iocbs upto the iocb with | |
1754 | * LE bit set. The function will call the completion handler of the command iocb | |
1755 | * if the response iocb indicates a completion for a command iocb or it is | |
1756 | * an abort completion. | |
1757 | **/ | |
2e0fef85 | 1758 | void lpfc_sli_poll_fcp_ring(struct lpfc_hba *phba) |
875fbdfe | 1759 | { |
2e0fef85 JS |
1760 | struct lpfc_sli *psli = &phba->sli; |
1761 | struct lpfc_sli_ring *pring = &psli->ring[LPFC_FCP_RING]; | |
875fbdfe JSEC |
1762 | IOCB_t *irsp = NULL; |
1763 | IOCB_t *entry = NULL; | |
1764 | struct lpfc_iocbq *cmdiocbq = NULL; | |
1765 | struct lpfc_iocbq rspiocbq; | |
34b02dcd | 1766 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
875fbdfe JSEC |
1767 | uint32_t status; |
1768 | uint32_t portRspPut, portRspMax; | |
1769 | int type; | |
1770 | uint32_t rsp_cmpl = 0; | |
875fbdfe | 1771 | uint32_t ha_copy; |
2e0fef85 | 1772 | unsigned long iflags; |
875fbdfe JSEC |
1773 | |
1774 | pring->stats.iocb_event++; | |
1775 | ||
875fbdfe JSEC |
1776 | /* |
1777 | * The next available response entry should never exceed the maximum | |
1778 | * entries. If it does, treat it as an adapter hardware error. | |
1779 | */ | |
1780 | portRspMax = pring->numRiocb; | |
1781 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1782 | if (unlikely(portRspPut >= portRspMax)) { | |
1783 | lpfc_sli_rsp_pointers_error(phba, pring); | |
1784 | return; | |
1785 | } | |
1786 | ||
1787 | rmb(); | |
1788 | while (pring->rspidx != portRspPut) { | |
ed957684 | 1789 | entry = lpfc_resp_iocb(phba, pring); |
875fbdfe JSEC |
1790 | if (++pring->rspidx >= portRspMax) |
1791 | pring->rspidx = 0; | |
1792 | ||
1793 | lpfc_sli_pcimem_bcopy((uint32_t *) entry, | |
1794 | (uint32_t *) &rspiocbq.iocb, | |
92d7f7b0 | 1795 | phba->iocb_rsp_size); |
875fbdfe JSEC |
1796 | irsp = &rspiocbq.iocb; |
1797 | type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); | |
1798 | pring->stats.iocb_rsp++; | |
1799 | rsp_cmpl++; | |
1800 | ||
1801 | if (unlikely(irsp->ulpStatus)) { | |
1802 | /* Rsp ring <ringno> error: IOCB */ | |
1803 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
e8b62011 | 1804 | "0326 Rsp Ring %d error: IOCB Data: " |
875fbdfe | 1805 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", |
e8b62011 | 1806 | pring->ringno, |
875fbdfe JSEC |
1807 | irsp->un.ulpWord[0], |
1808 | irsp->un.ulpWord[1], | |
1809 | irsp->un.ulpWord[2], | |
1810 | irsp->un.ulpWord[3], | |
1811 | irsp->un.ulpWord[4], | |
1812 | irsp->un.ulpWord[5], | |
d7c255b2 JS |
1813 | *(uint32_t *)&irsp->un1, |
1814 | *((uint32_t *)&irsp->un1 + 1)); | |
875fbdfe JSEC |
1815 | } |
1816 | ||
1817 | switch (type) { | |
1818 | case LPFC_ABORT_IOCB: | |
1819 | case LPFC_SOL_IOCB: | |
1820 | /* | |
1821 | * Idle exchange closed via ABTS from port. No iocb | |
1822 | * resources need to be recovered. | |
1823 | */ | |
1824 | if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { | |
dca9479b | 1825 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
e8b62011 JS |
1826 | "0314 IOCB cmd 0x%x " |
1827 | "processed. Skipping " | |
1828 | "completion", | |
dca9479b | 1829 | irsp->ulpCommand); |
875fbdfe JSEC |
1830 | break; |
1831 | } | |
1832 | ||
2e0fef85 | 1833 | spin_lock_irqsave(&phba->hbalock, iflags); |
875fbdfe JSEC |
1834 | cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, |
1835 | &rspiocbq); | |
2e0fef85 | 1836 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
875fbdfe JSEC |
1837 | if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { |
1838 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, | |
1839 | &rspiocbq); | |
1840 | } | |
1841 | break; | |
1842 | default: | |
1843 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
1844 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
1845 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
1846 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
1847 | MAX_MSG_DATA); | |
898eb71c JP |
1848 | dev_warn(&((phba->pcidev)->dev), |
1849 | "lpfc%d: %s\n", | |
875fbdfe JSEC |
1850 | phba->brd_no, adaptermsg); |
1851 | } else { | |
1852 | /* Unknown IOCB command */ | |
1853 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 1854 | "0321 Unknown IOCB command " |
875fbdfe | 1855 | "Data: x%x, x%x x%x x%x x%x\n", |
e8b62011 | 1856 | type, irsp->ulpCommand, |
875fbdfe JSEC |
1857 | irsp->ulpStatus, |
1858 | irsp->ulpIoTag, | |
1859 | irsp->ulpContext); | |
1860 | } | |
1861 | break; | |
1862 | } | |
1863 | ||
1864 | /* | |
1865 | * The response IOCB has been processed. Update the ring | |
1866 | * pointer in SLIM. If the port response put pointer has not | |
1867 | * been updated, sync the pgp->rspPutInx and fetch the new port | |
1868 | * response put pointer. | |
1869 | */ | |
ed957684 | 1870 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); |
875fbdfe JSEC |
1871 | |
1872 | if (pring->rspidx == portRspPut) | |
1873 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1874 | } | |
1875 | ||
1876 | ha_copy = readl(phba->HAregaddr); | |
1877 | ha_copy >>= (LPFC_FCP_RING * 4); | |
1878 | ||
1879 | if ((rsp_cmpl > 0) && (ha_copy & HA_R0RE_REQ)) { | |
2e0fef85 | 1880 | spin_lock_irqsave(&phba->hbalock, iflags); |
875fbdfe JSEC |
1881 | pring->stats.iocb_rsp_full++; |
1882 | status = ((CA_R0ATT | CA_R0RE_RSP) << (LPFC_FCP_RING * 4)); | |
1883 | writel(status, phba->CAregaddr); | |
1884 | readl(phba->CAregaddr); | |
2e0fef85 | 1885 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
875fbdfe JSEC |
1886 | } |
1887 | if ((ha_copy & HA_R0CE_RSP) && | |
1888 | (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2e0fef85 | 1889 | spin_lock_irqsave(&phba->hbalock, iflags); |
875fbdfe JSEC |
1890 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; |
1891 | pring->stats.iocb_cmd_empty++; | |
1892 | ||
1893 | /* Force update of the local copy of cmdGetInx */ | |
1894 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
1895 | lpfc_sli_resume_iocb(phba, pring); | |
1896 | ||
1897 | if ((pring->lpfc_sli_cmd_available)) | |
1898 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
1899 | ||
2e0fef85 | 1900 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
875fbdfe JSEC |
1901 | } |
1902 | ||
1903 | return; | |
1904 | } | |
1905 | ||
e59058c4 JS |
1906 | /** |
1907 | * lpfc_sli_handle_fast_ring_event: Handle ring events on FCP ring. | |
1908 | * @phba: Pointer to HBA context object. | |
1909 | * @pring: Pointer to driver SLI ring object. | |
1910 | * @mask: Host attention register mask for this ring. | |
1911 | * | |
1912 | * This function is called from the interrupt context when there is a ring | |
1913 | * event for the fcp ring. The caller does not hold any lock. | |
1914 | * The function processes each response iocb in the response ring until it | |
1915 | * finds an iocb with LE bit set and chains all the iocbs upto the iocb with | |
1916 | * LE bit set. The function will call the completion handler of the command iocb | |
1917 | * if the response iocb indicates a completion for a command iocb or it is | |
1918 | * an abort completion. The function will call lpfc_sli_process_unsol_iocb | |
1919 | * function if this is an unsolicited iocb. | |
dea3101e | 1920 | * This routine presumes LPFC_FCP_RING handling and doesn't bother |
e59058c4 JS |
1921 | * to check it explicitly. This function always returns 1. |
1922 | **/ | |
dea3101e | 1923 | static int |
2e0fef85 JS |
1924 | lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba, |
1925 | struct lpfc_sli_ring *pring, uint32_t mask) | |
dea3101e | 1926 | { |
34b02dcd | 1927 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
dea3101e | 1928 | IOCB_t *irsp = NULL; |
87f6eaff | 1929 | IOCB_t *entry = NULL; |
dea3101e | 1930 | struct lpfc_iocbq *cmdiocbq = NULL; |
1931 | struct lpfc_iocbq rspiocbq; | |
dea3101e | 1932 | uint32_t status; |
1933 | uint32_t portRspPut, portRspMax; | |
1934 | int rc = 1; | |
1935 | lpfc_iocb_type type; | |
1936 | unsigned long iflag; | |
1937 | uint32_t rsp_cmpl = 0; | |
dea3101e | 1938 | |
2e0fef85 | 1939 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e | 1940 | pring->stats.iocb_event++; |
1941 | ||
dea3101e | 1942 | /* |
1943 | * The next available response entry should never exceed the maximum | |
1944 | * entries. If it does, treat it as an adapter hardware error. | |
1945 | */ | |
1946 | portRspMax = pring->numRiocb; | |
1947 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1948 | if (unlikely(portRspPut >= portRspMax)) { | |
875fbdfe | 1949 | lpfc_sli_rsp_pointers_error(phba, pring); |
2e0fef85 | 1950 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 1951 | return 1; |
1952 | } | |
1953 | ||
1954 | rmb(); | |
1955 | while (pring->rspidx != portRspPut) { | |
87f6eaff JSEC |
1956 | /* |
1957 | * Fetch an entry off the ring and copy it into a local data | |
1958 | * structure. The copy involves a byte-swap since the | |
1959 | * network byte order and pci byte orders are different. | |
1960 | */ | |
ed957684 | 1961 | entry = lpfc_resp_iocb(phba, pring); |
858c9f6c | 1962 | phba->last_completion_time = jiffies; |
875fbdfe JSEC |
1963 | |
1964 | if (++pring->rspidx >= portRspMax) | |
1965 | pring->rspidx = 0; | |
1966 | ||
87f6eaff JSEC |
1967 | lpfc_sli_pcimem_bcopy((uint32_t *) entry, |
1968 | (uint32_t *) &rspiocbq.iocb, | |
ed957684 | 1969 | phba->iocb_rsp_size); |
a4bc3379 | 1970 | INIT_LIST_HEAD(&(rspiocbq.list)); |
87f6eaff JSEC |
1971 | irsp = &rspiocbq.iocb; |
1972 | ||
dea3101e | 1973 | type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); |
1974 | pring->stats.iocb_rsp++; | |
1975 | rsp_cmpl++; | |
1976 | ||
1977 | if (unlikely(irsp->ulpStatus)) { | |
92d7f7b0 JS |
1978 | /* |
1979 | * If resource errors reported from HBA, reduce | |
1980 | * queuedepths of the SCSI device. | |
1981 | */ | |
1982 | if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
1983 | (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) { | |
1984 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
1985 | lpfc_adjust_queue_depth(phba); | |
1986 | spin_lock_irqsave(&phba->hbalock, iflag); | |
1987 | } | |
1988 | ||
dea3101e | 1989 | /* Rsp ring <ringno> error: IOCB */ |
1990 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
e8b62011 | 1991 | "0336 Rsp Ring %d error: IOCB Data: " |
92d7f7b0 | 1992 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", |
e8b62011 | 1993 | pring->ringno, |
92d7f7b0 JS |
1994 | irsp->un.ulpWord[0], |
1995 | irsp->un.ulpWord[1], | |
1996 | irsp->un.ulpWord[2], | |
1997 | irsp->un.ulpWord[3], | |
1998 | irsp->un.ulpWord[4], | |
1999 | irsp->un.ulpWord[5], | |
d7c255b2 JS |
2000 | *(uint32_t *)&irsp->un1, |
2001 | *((uint32_t *)&irsp->un1 + 1)); | |
dea3101e | 2002 | } |
2003 | ||
2004 | switch (type) { | |
2005 | case LPFC_ABORT_IOCB: | |
2006 | case LPFC_SOL_IOCB: | |
2007 | /* | |
2008 | * Idle exchange closed via ABTS from port. No iocb | |
2009 | * resources need to be recovered. | |
2010 | */ | |
2011 | if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { | |
dca9479b | 2012 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
e8b62011 | 2013 | "0333 IOCB cmd 0x%x" |
dca9479b | 2014 | " processed. Skipping" |
92d7f7b0 | 2015 | " completion\n", |
dca9479b | 2016 | irsp->ulpCommand); |
dea3101e | 2017 | break; |
2018 | } | |
2019 | ||
604a3e30 JB |
2020 | cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, |
2021 | &rspiocbq); | |
dea3101e | 2022 | if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { |
b808608b JW |
2023 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { |
2024 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, | |
2025 | &rspiocbq); | |
2026 | } else { | |
2e0fef85 JS |
2027 | spin_unlock_irqrestore(&phba->hbalock, |
2028 | iflag); | |
b808608b JW |
2029 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, |
2030 | &rspiocbq); | |
2e0fef85 | 2031 | spin_lock_irqsave(&phba->hbalock, |
b808608b JW |
2032 | iflag); |
2033 | } | |
dea3101e | 2034 | } |
2035 | break; | |
a4bc3379 | 2036 | case LPFC_UNSOL_IOCB: |
2e0fef85 | 2037 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
a4bc3379 | 2038 | lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq); |
2e0fef85 | 2039 | spin_lock_irqsave(&phba->hbalock, iflag); |
a4bc3379 | 2040 | break; |
dea3101e | 2041 | default: |
2042 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
2043 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
2044 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
2045 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
2046 | MAX_MSG_DATA); | |
898eb71c JP |
2047 | dev_warn(&((phba->pcidev)->dev), |
2048 | "lpfc%d: %s\n", | |
dea3101e | 2049 | phba->brd_no, adaptermsg); |
2050 | } else { | |
2051 | /* Unknown IOCB command */ | |
2052 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 2053 | "0334 Unknown IOCB command " |
92d7f7b0 | 2054 | "Data: x%x, x%x x%x x%x x%x\n", |
e8b62011 | 2055 | type, irsp->ulpCommand, |
92d7f7b0 JS |
2056 | irsp->ulpStatus, |
2057 | irsp->ulpIoTag, | |
2058 | irsp->ulpContext); | |
dea3101e | 2059 | } |
2060 | break; | |
2061 | } | |
2062 | ||
2063 | /* | |
2064 | * The response IOCB has been processed. Update the ring | |
2065 | * pointer in SLIM. If the port response put pointer has not | |
2066 | * been updated, sync the pgp->rspPutInx and fetch the new port | |
2067 | * response put pointer. | |
2068 | */ | |
ed957684 | 2069 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); |
dea3101e | 2070 | |
2071 | if (pring->rspidx == portRspPut) | |
2072 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2073 | } | |
2074 | ||
2075 | if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) { | |
2076 | pring->stats.iocb_rsp_full++; | |
2077 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
2078 | writel(status, phba->CAregaddr); | |
2079 | readl(phba->CAregaddr); | |
2080 | } | |
2081 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2082 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
2083 | pring->stats.iocb_cmd_empty++; | |
2084 | ||
2085 | /* Force update of the local copy of cmdGetInx */ | |
2086 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
2087 | lpfc_sli_resume_iocb(phba, pring); | |
2088 | ||
2089 | if ((pring->lpfc_sli_cmd_available)) | |
2090 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
2091 | ||
2092 | } | |
2093 | ||
2e0fef85 | 2094 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 2095 | return rc; |
2096 | } | |
2097 | ||
e59058c4 JS |
2098 | /** |
2099 | * lpfc_sli_handle_slow_ring_event: Handle ring events for non-FCP rings. | |
2100 | * @phba: Pointer to HBA context object. | |
2101 | * @pring: Pointer to driver SLI ring object. | |
2102 | * @mask: Host attention register mask for this ring. | |
2103 | * | |
2104 | * This function is called from the worker thread when there is a ring | |
2105 | * event for non-fcp rings. The caller does not hold any lock . | |
2106 | * The function processes each response iocb in the response ring until it | |
2107 | * finds an iocb with LE bit set and chains all the iocbs upto the iocb with | |
2108 | * LE bit set. The function will call lpfc_sli_process_sol_iocb function if the | |
2109 | * response iocb indicates a completion of a command iocb. The function | |
2110 | * will call lpfc_sli_process_unsol_iocb function if this is an unsolicited | |
2111 | * iocb. The function frees the resources or calls the completion handler if | |
2112 | * this iocb is an abort completion. The function returns 0 when the allocated | |
2113 | * iocbs are not freed, otherwise returns 1. | |
2114 | **/ | |
dea3101e | 2115 | int |
2e0fef85 JS |
2116 | lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba, |
2117 | struct lpfc_sli_ring *pring, uint32_t mask) | |
dea3101e | 2118 | { |
34b02dcd | 2119 | struct lpfc_pgp *pgp; |
dea3101e | 2120 | IOCB_t *entry; |
2121 | IOCB_t *irsp = NULL; | |
2122 | struct lpfc_iocbq *rspiocbp = NULL; | |
2123 | struct lpfc_iocbq *next_iocb; | |
2124 | struct lpfc_iocbq *cmdiocbp; | |
2125 | struct lpfc_iocbq *saveq; | |
dea3101e | 2126 | uint8_t iocb_cmd_type; |
2127 | lpfc_iocb_type type; | |
2128 | uint32_t status, free_saveq; | |
2129 | uint32_t portRspPut, portRspMax; | |
2130 | int rc = 1; | |
2131 | unsigned long iflag; | |
dea3101e | 2132 | |
34b02dcd | 2133 | pgp = &phba->port_gp[pring->ringno]; |
2e0fef85 | 2134 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e | 2135 | pring->stats.iocb_event++; |
2136 | ||
dea3101e | 2137 | /* |
2138 | * The next available response entry should never exceed the maximum | |
2139 | * entries. If it does, treat it as an adapter hardware error. | |
2140 | */ | |
2141 | portRspMax = pring->numRiocb; | |
2142 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2143 | if (portRspPut >= portRspMax) { | |
2144 | /* | |
2145 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger then | |
2146 | * rsp ring <portRspMax> | |
2147 | */ | |
ed957684 | 2148 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 | 2149 | "0303 Ring %d handler: portRspPut %d " |
dea3101e | 2150 | "is bigger then rsp ring %d\n", |
e8b62011 | 2151 | pring->ringno, portRspPut, portRspMax); |
dea3101e | 2152 | |
2e0fef85 JS |
2153 | phba->link_state = LPFC_HBA_ERROR; |
2154 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
dea3101e | 2155 | |
2156 | phba->work_hs = HS_FFER3; | |
2157 | lpfc_handle_eratt(phba); | |
2158 | ||
2159 | return 1; | |
2160 | } | |
2161 | ||
2162 | rmb(); | |
dea3101e | 2163 | while (pring->rspidx != portRspPut) { |
2164 | /* | |
2165 | * Build a completion list and call the appropriate handler. | |
2166 | * The process is to get the next available response iocb, get | |
2167 | * a free iocb from the list, copy the response data into the | |
2168 | * free iocb, insert to the continuation list, and update the | |
2169 | * next response index to slim. This process makes response | |
2170 | * iocb's in the ring available to DMA as fast as possible but | |
2171 | * pays a penalty for a copy operation. Since the iocb is | |
2172 | * only 32 bytes, this penalty is considered small relative to | |
2173 | * the PCI reads for register values and a slim write. When | |
2174 | * the ulpLe field is set, the entire Command has been | |
2175 | * received. | |
2176 | */ | |
ed957684 JS |
2177 | entry = lpfc_resp_iocb(phba, pring); |
2178 | ||
858c9f6c | 2179 | phba->last_completion_time = jiffies; |
2e0fef85 | 2180 | rspiocbp = __lpfc_sli_get_iocbq(phba); |
dea3101e | 2181 | if (rspiocbp == NULL) { |
2182 | printk(KERN_ERR "%s: out of buffers! Failing " | |
cadbd4a5 | 2183 | "completion.\n", __func__); |
dea3101e | 2184 | break; |
2185 | } | |
2186 | ||
ed957684 JS |
2187 | lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb, |
2188 | phba->iocb_rsp_size); | |
dea3101e | 2189 | irsp = &rspiocbp->iocb; |
2190 | ||
2191 | if (++pring->rspidx >= portRspMax) | |
2192 | pring->rspidx = 0; | |
2193 | ||
a58cbd52 JS |
2194 | if (pring->ringno == LPFC_ELS_RING) { |
2195 | lpfc_debugfs_slow_ring_trc(phba, | |
2196 | "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x", | |
2197 | *(((uint32_t *) irsp) + 4), | |
2198 | *(((uint32_t *) irsp) + 6), | |
2199 | *(((uint32_t *) irsp) + 7)); | |
2200 | } | |
2201 | ||
ed957684 | 2202 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); |
dea3101e | 2203 | |
9c2face6 | 2204 | list_add_tail(&rspiocbp->list, &(pring->iocb_continueq)); |
dea3101e | 2205 | |
2206 | pring->iocb_continueq_cnt++; | |
2207 | if (irsp->ulpLe) { | |
2208 | /* | |
2209 | * By default, the driver expects to free all resources | |
2210 | * associated with this iocb completion. | |
2211 | */ | |
2212 | free_saveq = 1; | |
2213 | saveq = list_get_first(&pring->iocb_continueq, | |
2214 | struct lpfc_iocbq, list); | |
2215 | irsp = &(saveq->iocb); | |
2216 | list_del_init(&pring->iocb_continueq); | |
2217 | pring->iocb_continueq_cnt = 0; | |
2218 | ||
2219 | pring->stats.iocb_rsp++; | |
2220 | ||
92d7f7b0 JS |
2221 | /* |
2222 | * If resource errors reported from HBA, reduce | |
2223 | * queuedepths of the SCSI device. | |
2224 | */ | |
2225 | if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
2226 | (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) { | |
2227 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2228 | lpfc_adjust_queue_depth(phba); | |
2229 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2230 | } | |
2231 | ||
dea3101e | 2232 | if (irsp->ulpStatus) { |
2233 | /* Rsp ring <ringno> error: IOCB */ | |
ed957684 | 2234 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
e8b62011 | 2235 | "0328 Rsp Ring %d error: " |
ed957684 JS |
2236 | "IOCB Data: " |
2237 | "x%x x%x x%x x%x " | |
2238 | "x%x x%x x%x x%x " | |
2239 | "x%x x%x x%x x%x " | |
2240 | "x%x x%x x%x x%x\n", | |
ed957684 JS |
2241 | pring->ringno, |
2242 | irsp->un.ulpWord[0], | |
2243 | irsp->un.ulpWord[1], | |
2244 | irsp->un.ulpWord[2], | |
2245 | irsp->un.ulpWord[3], | |
2246 | irsp->un.ulpWord[4], | |
2247 | irsp->un.ulpWord[5], | |
2248 | *(((uint32_t *) irsp) + 6), | |
2249 | *(((uint32_t *) irsp) + 7), | |
2250 | *(((uint32_t *) irsp) + 8), | |
2251 | *(((uint32_t *) irsp) + 9), | |
2252 | *(((uint32_t *) irsp) + 10), | |
2253 | *(((uint32_t *) irsp) + 11), | |
2254 | *(((uint32_t *) irsp) + 12), | |
2255 | *(((uint32_t *) irsp) + 13), | |
2256 | *(((uint32_t *) irsp) + 14), | |
2257 | *(((uint32_t *) irsp) + 15)); | |
dea3101e | 2258 | } |
2259 | ||
2260 | /* | |
2261 | * Fetch the IOCB command type and call the correct | |
2262 | * completion routine. Solicited and Unsolicited | |
2263 | * IOCBs on the ELS ring get freed back to the | |
2264 | * lpfc_iocb_list by the discovery kernel thread. | |
2265 | */ | |
2266 | iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK; | |
2267 | type = lpfc_sli_iocb_cmd_type(iocb_cmd_type); | |
2268 | if (type == LPFC_SOL_IOCB) { | |
9c2face6 | 2269 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 2270 | rc = lpfc_sli_process_sol_iocb(phba, pring, |
2e0fef85 JS |
2271 | saveq); |
2272 | spin_lock_irqsave(&phba->hbalock, iflag); | |
dea3101e | 2273 | } else if (type == LPFC_UNSOL_IOCB) { |
9c2face6 | 2274 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 2275 | rc = lpfc_sli_process_unsol_iocb(phba, pring, |
2e0fef85 JS |
2276 | saveq); |
2277 | spin_lock_irqsave(&phba->hbalock, iflag); | |
9c2face6 JS |
2278 | if (!rc) |
2279 | free_saveq = 0; | |
dea3101e | 2280 | } else if (type == LPFC_ABORT_IOCB) { |
2281 | if ((irsp->ulpCommand != CMD_XRI_ABORTED_CX) && | |
2282 | ((cmdiocbp = | |
604a3e30 JB |
2283 | lpfc_sli_iocbq_lookup(phba, pring, |
2284 | saveq)))) { | |
dea3101e | 2285 | /* Call the specified completion |
2286 | routine */ | |
2287 | if (cmdiocbp->iocb_cmpl) { | |
2288 | spin_unlock_irqrestore( | |
2e0fef85 | 2289 | &phba->hbalock, |
dea3101e | 2290 | iflag); |
2291 | (cmdiocbp->iocb_cmpl) (phba, | |
2292 | cmdiocbp, saveq); | |
2293 | spin_lock_irqsave( | |
2e0fef85 | 2294 | &phba->hbalock, |
dea3101e | 2295 | iflag); |
604a3e30 | 2296 | } else |
2e0fef85 | 2297 | __lpfc_sli_release_iocbq(phba, |
604a3e30 | 2298 | cmdiocbp); |
dea3101e | 2299 | } |
2300 | } else if (type == LPFC_UNKNOWN_IOCB) { | |
2301 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
2302 | ||
2303 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
2304 | ||
2305 | memset(adaptermsg, 0, | |
2306 | LPFC_MAX_ADPTMSG); | |
2307 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
2308 | MAX_MSG_DATA); | |
2309 | dev_warn(&((phba->pcidev)->dev), | |
898eb71c | 2310 | "lpfc%d: %s\n", |
dea3101e | 2311 | phba->brd_no, adaptermsg); |
2312 | } else { | |
2313 | /* Unknown IOCB command */ | |
92d7f7b0 | 2314 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 | 2315 | "0335 Unknown IOCB " |
92d7f7b0 JS |
2316 | "command Data: x%x " |
2317 | "x%x x%x x%x\n", | |
92d7f7b0 JS |
2318 | irsp->ulpCommand, |
2319 | irsp->ulpStatus, | |
2320 | irsp->ulpIoTag, | |
2321 | irsp->ulpContext); | |
dea3101e | 2322 | } |
2323 | } | |
2324 | ||
2325 | if (free_saveq) { | |
2e0fef85 JS |
2326 | list_for_each_entry_safe(rspiocbp, next_iocb, |
2327 | &saveq->list, list) { | |
2328 | list_del(&rspiocbp->list); | |
2329 | __lpfc_sli_release_iocbq(phba, | |
2330 | rspiocbp); | |
dea3101e | 2331 | } |
2e0fef85 | 2332 | __lpfc_sli_release_iocbq(phba, saveq); |
dea3101e | 2333 | } |
92d7f7b0 | 2334 | rspiocbp = NULL; |
dea3101e | 2335 | } |
2336 | ||
2337 | /* | |
2338 | * If the port response put pointer has not been updated, sync | |
2339 | * the pgp->rspPutInx in the MAILBOX_tand fetch the new port | |
2340 | * response put pointer. | |
2341 | */ | |
2342 | if (pring->rspidx == portRspPut) { | |
2343 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2344 | } | |
2345 | } /* while (pring->rspidx != portRspPut) */ | |
2346 | ||
92d7f7b0 | 2347 | if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) { |
dea3101e | 2348 | /* At least one response entry has been freed */ |
2349 | pring->stats.iocb_rsp_full++; | |
2350 | /* SET RxRE_RSP in Chip Att register */ | |
2351 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
2352 | writel(status, phba->CAregaddr); | |
2353 | readl(phba->CAregaddr); /* flush */ | |
2354 | } | |
2355 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2356 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
2357 | pring->stats.iocb_cmd_empty++; | |
2358 | ||
2359 | /* Force update of the local copy of cmdGetInx */ | |
2360 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
2361 | lpfc_sli_resume_iocb(phba, pring); | |
2362 | ||
2363 | if ((pring->lpfc_sli_cmd_available)) | |
2364 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
2365 | ||
2366 | } | |
2367 | ||
2e0fef85 | 2368 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 2369 | return rc; |
2370 | } | |
2371 | ||
e59058c4 JS |
2372 | /** |
2373 | * lpfc_sli_abort_iocb_ring: Abort all iocbs in the ring. | |
2374 | * @phba: Pointer to HBA context object. | |
2375 | * @pring: Pointer to driver SLI ring object. | |
2376 | * | |
2377 | * This function aborts all iocbs in the given ring and frees all the iocb | |
2378 | * objects in txq. This function issues an abort iocb for all the iocb commands | |
2379 | * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before | |
2380 | * the return of this function. The caller is not required to hold any locks. | |
2381 | **/ | |
2e0fef85 | 2382 | void |
dea3101e | 2383 | lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
2384 | { | |
2534ba75 | 2385 | LIST_HEAD(completions); |
dea3101e | 2386 | struct lpfc_iocbq *iocb, *next_iocb; |
2534ba75 | 2387 | IOCB_t *cmd = NULL; |
dea3101e | 2388 | |
92d7f7b0 JS |
2389 | if (pring->ringno == LPFC_ELS_RING) { |
2390 | lpfc_fabric_abort_hba(phba); | |
2391 | } | |
2392 | ||
dea3101e | 2393 | /* Error everything on txq and txcmplq |
2394 | * First do the txq. | |
2395 | */ | |
2e0fef85 | 2396 | spin_lock_irq(&phba->hbalock); |
2534ba75 | 2397 | list_splice_init(&pring->txq, &completions); |
dea3101e | 2398 | pring->txq_cnt = 0; |
dea3101e | 2399 | |
2400 | /* Next issue ABTS for everything on the txcmplq */ | |
2534ba75 JS |
2401 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) |
2402 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); | |
dea3101e | 2403 | |
2e0fef85 | 2404 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 2405 | |
2534ba75 JS |
2406 | while (!list_empty(&completions)) { |
2407 | iocb = list_get_first(&completions, struct lpfc_iocbq, list); | |
2408 | cmd = &iocb->iocb; | |
92d7f7b0 | 2409 | list_del_init(&iocb->list); |
dea3101e | 2410 | |
2e0fef85 JS |
2411 | if (!iocb->iocb_cmpl) |
2412 | lpfc_sli_release_iocbq(phba, iocb); | |
2413 | else { | |
dea3101e | 2414 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; |
2415 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
dea3101e | 2416 | (iocb->iocb_cmpl) (phba, iocb, iocb); |
2e0fef85 | 2417 | } |
dea3101e | 2418 | } |
dea3101e | 2419 | } |
2420 | ||
a8e497d5 JS |
2421 | /** |
2422 | * lpfc_sli_flush_fcp_rings: flush all iocbs in the fcp ring. | |
2423 | * @phba: Pointer to HBA context object. | |
2424 | * | |
2425 | * This function flushes all iocbs in the fcp ring and frees all the iocb | |
2426 | * objects in txq and txcmplq. This function will not issue abort iocbs | |
2427 | * for all the iocb commands in txcmplq, they will just be returned with | |
2428 | * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI | |
2429 | * slot has been permanently disabled. | |
2430 | **/ | |
2431 | void | |
2432 | lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba) | |
2433 | { | |
2434 | LIST_HEAD(txq); | |
2435 | LIST_HEAD(txcmplq); | |
2436 | struct lpfc_iocbq *iocb; | |
2437 | IOCB_t *cmd = NULL; | |
2438 | struct lpfc_sli *psli = &phba->sli; | |
2439 | struct lpfc_sli_ring *pring; | |
2440 | ||
2441 | /* Currently, only one fcp ring */ | |
2442 | pring = &psli->ring[psli->fcp_ring]; | |
2443 | ||
2444 | spin_lock_irq(&phba->hbalock); | |
2445 | /* Retrieve everything on txq */ | |
2446 | list_splice_init(&pring->txq, &txq); | |
2447 | pring->txq_cnt = 0; | |
2448 | ||
2449 | /* Retrieve everything on the txcmplq */ | |
2450 | list_splice_init(&pring->txcmplq, &txcmplq); | |
2451 | pring->txcmplq_cnt = 0; | |
2452 | spin_unlock_irq(&phba->hbalock); | |
2453 | ||
2454 | /* Flush the txq */ | |
2455 | while (!list_empty(&txq)) { | |
2456 | iocb = list_get_first(&txq, struct lpfc_iocbq, list); | |
2457 | cmd = &iocb->iocb; | |
2458 | list_del_init(&iocb->list); | |
2459 | ||
2460 | if (!iocb->iocb_cmpl) | |
2461 | lpfc_sli_release_iocbq(phba, iocb); | |
2462 | else { | |
2463 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
2464 | cmd->un.ulpWord[4] = IOERR_SLI_DOWN; | |
2465 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
2466 | } | |
2467 | } | |
2468 | ||
2469 | /* Flush the txcmpq */ | |
2470 | while (!list_empty(&txcmplq)) { | |
2471 | iocb = list_get_first(&txcmplq, struct lpfc_iocbq, list); | |
2472 | cmd = &iocb->iocb; | |
2473 | list_del_init(&iocb->list); | |
2474 | ||
2475 | if (!iocb->iocb_cmpl) | |
2476 | lpfc_sli_release_iocbq(phba, iocb); | |
2477 | else { | |
2478 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
2479 | cmd->un.ulpWord[4] = IOERR_SLI_DOWN; | |
2480 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
2481 | } | |
2482 | } | |
2483 | } | |
2484 | ||
e59058c4 JS |
2485 | /** |
2486 | * lpfc_sli_brdready: Check for host status bits. | |
2487 | * @phba: Pointer to HBA context object. | |
2488 | * @mask: Bit mask to be checked. | |
2489 | * | |
2490 | * This function reads the host status register and compares | |
2491 | * with the provided bit mask to check if HBA completed | |
2492 | * the restart. This function will wait in a loop for the | |
2493 | * HBA to complete restart. If the HBA does not restart within | |
2494 | * 15 iterations, the function will reset the HBA again. The | |
2495 | * function returns 1 when HBA fail to restart otherwise returns | |
2496 | * zero. | |
2497 | **/ | |
41415862 | 2498 | int |
2e0fef85 | 2499 | lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask) |
dea3101e | 2500 | { |
41415862 JW |
2501 | uint32_t status; |
2502 | int i = 0; | |
2503 | int retval = 0; | |
dea3101e | 2504 | |
41415862 JW |
2505 | /* Read the HBA Host Status Register */ |
2506 | status = readl(phba->HSregaddr); | |
dea3101e | 2507 | |
41415862 JW |
2508 | /* |
2509 | * Check status register every 100ms for 5 retries, then every | |
2510 | * 500ms for 5, then every 2.5 sec for 5, then reset board and | |
2511 | * every 2.5 sec for 4. | |
2512 | * Break our of the loop if errors occurred during init. | |
2513 | */ | |
2514 | while (((status & mask) != mask) && | |
2515 | !(status & HS_FFERM) && | |
2516 | i++ < 20) { | |
dea3101e | 2517 | |
41415862 JW |
2518 | if (i <= 5) |
2519 | msleep(10); | |
2520 | else if (i <= 10) | |
2521 | msleep(500); | |
2522 | else | |
2523 | msleep(2500); | |
dea3101e | 2524 | |
41415862 | 2525 | if (i == 15) { |
2e0fef85 | 2526 | /* Do post */ |
92d7f7b0 | 2527 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 JW |
2528 | lpfc_sli_brdrestart(phba); |
2529 | } | |
2530 | /* Read the HBA Host Status Register */ | |
2531 | status = readl(phba->HSregaddr); | |
2532 | } | |
dea3101e | 2533 | |
41415862 JW |
2534 | /* Check to see if any errors occurred during init */ |
2535 | if ((status & HS_FFERM) || (i >= 20)) { | |
2e0fef85 | 2536 | phba->link_state = LPFC_HBA_ERROR; |
41415862 | 2537 | retval = 1; |
dea3101e | 2538 | } |
dea3101e | 2539 | |
41415862 JW |
2540 | return retval; |
2541 | } | |
dea3101e | 2542 | |
9290831f JS |
2543 | #define BARRIER_TEST_PATTERN (0xdeadbeef) |
2544 | ||
e59058c4 JS |
2545 | /** |
2546 | * lpfc_reset_barrier: Make HBA ready for HBA reset. | |
2547 | * @phba: Pointer to HBA context object. | |
2548 | * | |
2549 | * This function is called before resetting an HBA. This | |
2550 | * function requests HBA to quiesce DMAs before a reset. | |
2551 | **/ | |
2e0fef85 | 2552 | void lpfc_reset_barrier(struct lpfc_hba *phba) |
9290831f | 2553 | { |
65a29c16 JS |
2554 | uint32_t __iomem *resp_buf; |
2555 | uint32_t __iomem *mbox_buf; | |
9290831f JS |
2556 | volatile uint32_t mbox; |
2557 | uint32_t hc_copy; | |
2558 | int i; | |
2559 | uint8_t hdrtype; | |
2560 | ||
2561 | pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype); | |
2562 | if (hdrtype != 0x80 || | |
2563 | (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID && | |
2564 | FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID)) | |
2565 | return; | |
2566 | ||
2567 | /* | |
2568 | * Tell the other part of the chip to suspend temporarily all | |
2569 | * its DMA activity. | |
2570 | */ | |
65a29c16 | 2571 | resp_buf = phba->MBslimaddr; |
9290831f JS |
2572 | |
2573 | /* Disable the error attention */ | |
2574 | hc_copy = readl(phba->HCregaddr); | |
2575 | writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr); | |
2576 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 | 2577 | phba->link_flag |= LS_IGNORE_ERATT; |
9290831f JS |
2578 | |
2579 | if (readl(phba->HAregaddr) & HA_ERATT) { | |
2580 | /* Clear Chip error bit */ | |
2581 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 2582 | phba->pport->stopped = 1; |
9290831f JS |
2583 | } |
2584 | ||
2585 | mbox = 0; | |
2586 | ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD; | |
2587 | ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP; | |
2588 | ||
2589 | writel(BARRIER_TEST_PATTERN, (resp_buf + 1)); | |
65a29c16 | 2590 | mbox_buf = phba->MBslimaddr; |
9290831f JS |
2591 | writel(mbox, mbox_buf); |
2592 | ||
2593 | for (i = 0; | |
2594 | readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++) | |
2595 | mdelay(1); | |
2596 | ||
2597 | if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) { | |
2598 | if (phba->sli.sli_flag & LPFC_SLI2_ACTIVE || | |
2e0fef85 | 2599 | phba->pport->stopped) |
9290831f JS |
2600 | goto restore_hc; |
2601 | else | |
2602 | goto clear_errat; | |
2603 | } | |
2604 | ||
2605 | ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST; | |
2606 | for (i = 0; readl(resp_buf) != mbox && i < 500; i++) | |
2607 | mdelay(1); | |
2608 | ||
2609 | clear_errat: | |
2610 | ||
2611 | while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500) | |
2612 | mdelay(1); | |
2613 | ||
2614 | if (readl(phba->HAregaddr) & HA_ERATT) { | |
2615 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 2616 | phba->pport->stopped = 1; |
9290831f JS |
2617 | } |
2618 | ||
2619 | restore_hc: | |
2e0fef85 | 2620 | phba->link_flag &= ~LS_IGNORE_ERATT; |
9290831f JS |
2621 | writel(hc_copy, phba->HCregaddr); |
2622 | readl(phba->HCregaddr); /* flush */ | |
2623 | } | |
2624 | ||
e59058c4 JS |
2625 | /** |
2626 | * lpfc_sli_brdkill: Issue a kill_board mailbox command. | |
2627 | * @phba: Pointer to HBA context object. | |
2628 | * | |
2629 | * This function issues a kill_board mailbox command and waits for | |
2630 | * the error attention interrupt. This function is called for stopping | |
2631 | * the firmware processing. The caller is not required to hold any | |
2632 | * locks. This function calls lpfc_hba_down_post function to free | |
2633 | * any pending commands after the kill. The function will return 1 when it | |
2634 | * fails to kill the board else will return 0. | |
2635 | **/ | |
41415862 | 2636 | int |
2e0fef85 | 2637 | lpfc_sli_brdkill(struct lpfc_hba *phba) |
41415862 JW |
2638 | { |
2639 | struct lpfc_sli *psli; | |
2640 | LPFC_MBOXQ_t *pmb; | |
2641 | uint32_t status; | |
2642 | uint32_t ha_copy; | |
2643 | int retval; | |
2644 | int i = 0; | |
dea3101e | 2645 | |
41415862 | 2646 | psli = &phba->sli; |
dea3101e | 2647 | |
41415862 | 2648 | /* Kill HBA */ |
ed957684 | 2649 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
e8b62011 JS |
2650 | "0329 Kill HBA Data: x%x x%x\n", |
2651 | phba->pport->port_state, psli->sli_flag); | |
41415862 | 2652 | |
98c9ea5c JS |
2653 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
2654 | if (!pmb) | |
41415862 | 2655 | return 1; |
41415862 JW |
2656 | |
2657 | /* Disable the error attention */ | |
2e0fef85 | 2658 | spin_lock_irq(&phba->hbalock); |
41415862 JW |
2659 | status = readl(phba->HCregaddr); |
2660 | status &= ~HC_ERINT_ENA; | |
2661 | writel(status, phba->HCregaddr); | |
2662 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 JS |
2663 | phba->link_flag |= LS_IGNORE_ERATT; |
2664 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
2665 | |
2666 | lpfc_kill_board(phba, pmb); | |
2667 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
2668 | retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
2669 | ||
2670 | if (retval != MBX_SUCCESS) { | |
2671 | if (retval != MBX_BUSY) | |
2672 | mempool_free(pmb, phba->mbox_mem_pool); | |
2e0fef85 JS |
2673 | spin_lock_irq(&phba->hbalock); |
2674 | phba->link_flag &= ~LS_IGNORE_ERATT; | |
2675 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
2676 | return 1; |
2677 | } | |
2678 | ||
9290831f JS |
2679 | psli->sli_flag &= ~LPFC_SLI2_ACTIVE; |
2680 | ||
41415862 JW |
2681 | mempool_free(pmb, phba->mbox_mem_pool); |
2682 | ||
2683 | /* There is no completion for a KILL_BOARD mbox cmd. Check for an error | |
2684 | * attention every 100ms for 3 seconds. If we don't get ERATT after | |
2685 | * 3 seconds we still set HBA_ERROR state because the status of the | |
2686 | * board is now undefined. | |
2687 | */ | |
2688 | ha_copy = readl(phba->HAregaddr); | |
2689 | ||
2690 | while ((i++ < 30) && !(ha_copy & HA_ERATT)) { | |
2691 | mdelay(100); | |
2692 | ha_copy = readl(phba->HAregaddr); | |
2693 | } | |
2694 | ||
2695 | del_timer_sync(&psli->mbox_tmo); | |
9290831f JS |
2696 | if (ha_copy & HA_ERATT) { |
2697 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 2698 | phba->pport->stopped = 1; |
9290831f | 2699 | } |
2e0fef85 | 2700 | spin_lock_irq(&phba->hbalock); |
41415862 | 2701 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 JS |
2702 | phba->link_flag &= ~LS_IGNORE_ERATT; |
2703 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
2704 | |
2705 | psli->mbox_active = NULL; | |
2706 | lpfc_hba_down_post(phba); | |
2e0fef85 | 2707 | phba->link_state = LPFC_HBA_ERROR; |
41415862 | 2708 | |
2e0fef85 | 2709 | return ha_copy & HA_ERATT ? 0 : 1; |
dea3101e | 2710 | } |
2711 | ||
e59058c4 JS |
2712 | /** |
2713 | * lpfc_sli_brdreset: Reset the HBA. | |
2714 | * @phba: Pointer to HBA context object. | |
2715 | * | |
2716 | * This function resets the HBA by writing HC_INITFF to the control | |
2717 | * register. After the HBA resets, this function resets all the iocb ring | |
2718 | * indices. This function disables PCI layer parity checking during | |
2719 | * the reset. | |
2720 | * This function returns 0 always. | |
2721 | * The caller is not required to hold any locks. | |
2722 | **/ | |
41415862 | 2723 | int |
2e0fef85 | 2724 | lpfc_sli_brdreset(struct lpfc_hba *phba) |
dea3101e | 2725 | { |
41415862 | 2726 | struct lpfc_sli *psli; |
dea3101e | 2727 | struct lpfc_sli_ring *pring; |
41415862 | 2728 | uint16_t cfg_value; |
dea3101e | 2729 | int i; |
dea3101e | 2730 | |
41415862 | 2731 | psli = &phba->sli; |
dea3101e | 2732 | |
41415862 JW |
2733 | /* Reset HBA */ |
2734 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 2735 | "0325 Reset HBA Data: x%x x%x\n", |
2e0fef85 | 2736 | phba->pport->port_state, psli->sli_flag); |
dea3101e | 2737 | |
2738 | /* perform board reset */ | |
2739 | phba->fc_eventTag = 0; | |
2e0fef85 JS |
2740 | phba->pport->fc_myDID = 0; |
2741 | phba->pport->fc_prevDID = 0; | |
dea3101e | 2742 | |
41415862 JW |
2743 | /* Turn off parity checking and serr during the physical reset */ |
2744 | pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value); | |
2745 | pci_write_config_word(phba->pcidev, PCI_COMMAND, | |
2746 | (cfg_value & | |
2747 | ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR))); | |
2748 | ||
1c067a42 | 2749 | psli->sli_flag &= ~(LPFC_SLI2_ACTIVE | LPFC_PROCESS_LA); |
41415862 JW |
2750 | /* Now toggle INITFF bit in the Host Control Register */ |
2751 | writel(HC_INITFF, phba->HCregaddr); | |
2752 | mdelay(1); | |
2753 | readl(phba->HCregaddr); /* flush */ | |
2754 | writel(0, phba->HCregaddr); | |
2755 | readl(phba->HCregaddr); /* flush */ | |
2756 | ||
2757 | /* Restore PCI cmd register */ | |
2758 | pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value); | |
dea3101e | 2759 | |
2760 | /* Initialize relevant SLI info */ | |
41415862 JW |
2761 | for (i = 0; i < psli->num_rings; i++) { |
2762 | pring = &psli->ring[i]; | |
dea3101e | 2763 | pring->flag = 0; |
2764 | pring->rspidx = 0; | |
2765 | pring->next_cmdidx = 0; | |
2766 | pring->local_getidx = 0; | |
2767 | pring->cmdidx = 0; | |
2768 | pring->missbufcnt = 0; | |
2769 | } | |
dea3101e | 2770 | |
2e0fef85 | 2771 | phba->link_state = LPFC_WARM_START; |
41415862 JW |
2772 | return 0; |
2773 | } | |
2774 | ||
e59058c4 JS |
2775 | /** |
2776 | * lpfc_sli_brdrestart: Restart the HBA. | |
2777 | * @phba: Pointer to HBA context object. | |
2778 | * | |
2779 | * This function is called in the SLI initialization code path to | |
2780 | * restart the HBA. The caller is not required to hold any lock. | |
2781 | * This function writes MBX_RESTART mailbox command to the SLIM and | |
2782 | * resets the HBA. At the end of the function, it calls lpfc_hba_down_post | |
2783 | * function to free any pending commands. The function enables | |
2784 | * POST only during the first initialization. The function returns zero. | |
2785 | * The function does not guarantee completion of MBX_RESTART mailbox | |
2786 | * command before the return of this function. | |
2787 | **/ | |
41415862 | 2788 | int |
2e0fef85 | 2789 | lpfc_sli_brdrestart(struct lpfc_hba *phba) |
41415862 JW |
2790 | { |
2791 | MAILBOX_t *mb; | |
2792 | struct lpfc_sli *psli; | |
2793 | uint16_t skip_post; | |
2794 | volatile uint32_t word0; | |
2795 | void __iomem *to_slim; | |
2796 | ||
2e0fef85 | 2797 | spin_lock_irq(&phba->hbalock); |
41415862 JW |
2798 | |
2799 | psli = &phba->sli; | |
2800 | ||
2801 | /* Restart HBA */ | |
2802 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 2803 | "0337 Restart HBA Data: x%x x%x\n", |
2e0fef85 | 2804 | phba->pport->port_state, psli->sli_flag); |
41415862 JW |
2805 | |
2806 | word0 = 0; | |
2807 | mb = (MAILBOX_t *) &word0; | |
2808 | mb->mbxCommand = MBX_RESTART; | |
2809 | mb->mbxHc = 1; | |
2810 | ||
9290831f JS |
2811 | lpfc_reset_barrier(phba); |
2812 | ||
41415862 JW |
2813 | to_slim = phba->MBslimaddr; |
2814 | writel(*(uint32_t *) mb, to_slim); | |
2815 | readl(to_slim); /* flush */ | |
2816 | ||
2817 | /* Only skip post after fc_ffinit is completed */ | |
2e0fef85 | 2818 | if (phba->pport->port_state) { |
41415862 JW |
2819 | skip_post = 1; |
2820 | word0 = 1; /* This is really setting up word1 */ | |
dea3101e | 2821 | } else { |
41415862 JW |
2822 | skip_post = 0; |
2823 | word0 = 0; /* This is really setting up word1 */ | |
dea3101e | 2824 | } |
65a29c16 | 2825 | to_slim = phba->MBslimaddr + sizeof (uint32_t); |
41415862 JW |
2826 | writel(*(uint32_t *) mb, to_slim); |
2827 | readl(to_slim); /* flush */ | |
dea3101e | 2828 | |
41415862 | 2829 | lpfc_sli_brdreset(phba); |
2e0fef85 JS |
2830 | phba->pport->stopped = 0; |
2831 | phba->link_state = LPFC_INIT_START; | |
41415862 | 2832 | |
2e0fef85 | 2833 | spin_unlock_irq(&phba->hbalock); |
41415862 | 2834 | |
64ba8818 JS |
2835 | memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets)); |
2836 | psli->stats_start = get_seconds(); | |
2837 | ||
41415862 JW |
2838 | if (skip_post) |
2839 | mdelay(100); | |
2840 | else | |
2841 | mdelay(2000); | |
2842 | ||
2843 | lpfc_hba_down_post(phba); | |
dea3101e | 2844 | |
2845 | return 0; | |
2846 | } | |
2847 | ||
e59058c4 JS |
2848 | /** |
2849 | * lpfc_sli_chipset_init: Wait for the restart of the HBA after a restart. | |
2850 | * @phba: Pointer to HBA context object. | |
2851 | * | |
2852 | * This function is called after a HBA restart to wait for successful | |
2853 | * restart of the HBA. Successful restart of the HBA is indicated by | |
2854 | * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15 | |
2855 | * iteration, the function will restart the HBA again. The function returns | |
2856 | * zero if HBA successfully restarted else returns negative error code. | |
2857 | **/ | |
dea3101e | 2858 | static int |
2859 | lpfc_sli_chipset_init(struct lpfc_hba *phba) | |
2860 | { | |
2861 | uint32_t status, i = 0; | |
2862 | ||
2863 | /* Read the HBA Host Status Register */ | |
2864 | status = readl(phba->HSregaddr); | |
2865 | ||
2866 | /* Check status register to see what current state is */ | |
2867 | i = 0; | |
2868 | while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) { | |
2869 | ||
2870 | /* Check every 100ms for 5 retries, then every 500ms for 5, then | |
2871 | * every 2.5 sec for 5, then reset board and every 2.5 sec for | |
2872 | * 4. | |
2873 | */ | |
2874 | if (i++ >= 20) { | |
2875 | /* Adapter failed to init, timeout, status reg | |
2876 | <status> */ | |
ed957684 | 2877 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 2878 | "0436 Adapter failed to init, " |
09372820 JS |
2879 | "timeout, status reg x%x, " |
2880 | "FW Data: A8 x%x AC x%x\n", status, | |
2881 | readl(phba->MBslimaddr + 0xa8), | |
2882 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 2883 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 2884 | return -ETIMEDOUT; |
2885 | } | |
2886 | ||
2887 | /* Check to see if any errors occurred during init */ | |
2888 | if (status & HS_FFERM) { | |
2889 | /* ERROR: During chipset initialization */ | |
2890 | /* Adapter failed to init, chipset, status reg | |
2891 | <status> */ | |
ed957684 | 2892 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 2893 | "0437 Adapter failed to init, " |
09372820 JS |
2894 | "chipset, status reg x%x, " |
2895 | "FW Data: A8 x%x AC x%x\n", status, | |
2896 | readl(phba->MBslimaddr + 0xa8), | |
2897 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 2898 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 2899 | return -EIO; |
2900 | } | |
2901 | ||
2902 | if (i <= 5) { | |
2903 | msleep(10); | |
2904 | } else if (i <= 10) { | |
2905 | msleep(500); | |
2906 | } else { | |
2907 | msleep(2500); | |
2908 | } | |
2909 | ||
2910 | if (i == 15) { | |
2e0fef85 | 2911 | /* Do post */ |
92d7f7b0 | 2912 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 | 2913 | lpfc_sli_brdrestart(phba); |
dea3101e | 2914 | } |
2915 | /* Read the HBA Host Status Register */ | |
2916 | status = readl(phba->HSregaddr); | |
2917 | } | |
2918 | ||
2919 | /* Check to see if any errors occurred during init */ | |
2920 | if (status & HS_FFERM) { | |
2921 | /* ERROR: During chipset initialization */ | |
2922 | /* Adapter failed to init, chipset, status reg <status> */ | |
ed957684 | 2923 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 2924 | "0438 Adapter failed to init, chipset, " |
09372820 JS |
2925 | "status reg x%x, " |
2926 | "FW Data: A8 x%x AC x%x\n", status, | |
2927 | readl(phba->MBslimaddr + 0xa8), | |
2928 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 2929 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 2930 | return -EIO; |
2931 | } | |
2932 | ||
2933 | /* Clear all interrupt enable conditions */ | |
2934 | writel(0, phba->HCregaddr); | |
2935 | readl(phba->HCregaddr); /* flush */ | |
2936 | ||
2937 | /* setup host attn register */ | |
2938 | writel(0xffffffff, phba->HAregaddr); | |
2939 | readl(phba->HAregaddr); /* flush */ | |
2940 | return 0; | |
2941 | } | |
2942 | ||
e59058c4 JS |
2943 | /** |
2944 | * lpfc_sli_hbq_count: Get the number of HBQs to be configured. | |
2945 | * | |
2946 | * This function calculates and returns the number of HBQs required to be | |
2947 | * configured. | |
2948 | **/ | |
78b2d852 | 2949 | int |
ed957684 JS |
2950 | lpfc_sli_hbq_count(void) |
2951 | { | |
92d7f7b0 | 2952 | return ARRAY_SIZE(lpfc_hbq_defs); |
ed957684 JS |
2953 | } |
2954 | ||
e59058c4 JS |
2955 | /** |
2956 | * lpfc_sli_hbq_entry_count: Calculate total number of hbq entries. | |
2957 | * | |
2958 | * This function adds the number of hbq entries in every HBQ to get | |
2959 | * the total number of hbq entries required for the HBA and returns | |
2960 | * the total count. | |
2961 | **/ | |
ed957684 JS |
2962 | static int |
2963 | lpfc_sli_hbq_entry_count(void) | |
2964 | { | |
2965 | int hbq_count = lpfc_sli_hbq_count(); | |
2966 | int count = 0; | |
2967 | int i; | |
2968 | ||
2969 | for (i = 0; i < hbq_count; ++i) | |
92d7f7b0 | 2970 | count += lpfc_hbq_defs[i]->entry_count; |
ed957684 JS |
2971 | return count; |
2972 | } | |
2973 | ||
e59058c4 JS |
2974 | /** |
2975 | * lpfc_sli_hbq_size: Calculate memory required for all hbq entries. | |
2976 | * | |
2977 | * This function calculates amount of memory required for all hbq entries | |
2978 | * to be configured and returns the total memory required. | |
2979 | **/ | |
dea3101e | 2980 | int |
ed957684 JS |
2981 | lpfc_sli_hbq_size(void) |
2982 | { | |
2983 | return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry); | |
2984 | } | |
2985 | ||
e59058c4 JS |
2986 | /** |
2987 | * lpfc_sli_hbq_setup: configure and initialize HBQs. | |
2988 | * @phba: Pointer to HBA context object. | |
2989 | * | |
2990 | * This function is called during the SLI initialization to configure | |
2991 | * all the HBQs and post buffers to the HBQ. The caller is not | |
2992 | * required to hold any locks. This function will return zero if successful | |
2993 | * else it will return negative error code. | |
2994 | **/ | |
ed957684 JS |
2995 | static int |
2996 | lpfc_sli_hbq_setup(struct lpfc_hba *phba) | |
2997 | { | |
2998 | int hbq_count = lpfc_sli_hbq_count(); | |
2999 | LPFC_MBOXQ_t *pmb; | |
3000 | MAILBOX_t *pmbox; | |
3001 | uint32_t hbqno; | |
3002 | uint32_t hbq_entry_index; | |
ed957684 | 3003 | |
92d7f7b0 JS |
3004 | /* Get a Mailbox buffer to setup mailbox |
3005 | * commands for HBA initialization | |
3006 | */ | |
ed957684 JS |
3007 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
3008 | ||
3009 | if (!pmb) | |
3010 | return -ENOMEM; | |
3011 | ||
3012 | pmbox = &pmb->mb; | |
3013 | ||
3014 | /* Initialize the struct lpfc_sli_hbq structure for each hbq */ | |
3015 | phba->link_state = LPFC_INIT_MBX_CMDS; | |
3163f725 | 3016 | phba->hbq_in_use = 1; |
ed957684 JS |
3017 | |
3018 | hbq_entry_index = 0; | |
3019 | for (hbqno = 0; hbqno < hbq_count; ++hbqno) { | |
3020 | phba->hbqs[hbqno].next_hbqPutIdx = 0; | |
3021 | phba->hbqs[hbqno].hbqPutIdx = 0; | |
3022 | phba->hbqs[hbqno].local_hbqGetIdx = 0; | |
3023 | phba->hbqs[hbqno].entry_count = | |
92d7f7b0 | 3024 | lpfc_hbq_defs[hbqno]->entry_count; |
51ef4c26 JS |
3025 | lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno], |
3026 | hbq_entry_index, pmb); | |
ed957684 JS |
3027 | hbq_entry_index += phba->hbqs[hbqno].entry_count; |
3028 | ||
3029 | if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { | |
3030 | /* Adapter failed to init, mbxCmd <cmd> CFG_RING, | |
3031 | mbxStatus <status>, ring <num> */ | |
3032 | ||
3033 | lpfc_printf_log(phba, KERN_ERR, | |
92d7f7b0 | 3034 | LOG_SLI | LOG_VPORT, |
e8b62011 | 3035 | "1805 Adapter failed to init. " |
ed957684 | 3036 | "Data: x%x x%x x%x\n", |
e8b62011 | 3037 | pmbox->mbxCommand, |
ed957684 JS |
3038 | pmbox->mbxStatus, hbqno); |
3039 | ||
3040 | phba->link_state = LPFC_HBA_ERROR; | |
3041 | mempool_free(pmb, phba->mbox_mem_pool); | |
ed957684 JS |
3042 | return ENXIO; |
3043 | } | |
3044 | } | |
3045 | phba->hbq_count = hbq_count; | |
3046 | ||
ed957684 JS |
3047 | mempool_free(pmb, phba->mbox_mem_pool); |
3048 | ||
92d7f7b0 | 3049 | /* Initially populate or replenish the HBQs */ |
d7c255b2 JS |
3050 | for (hbqno = 0; hbqno < hbq_count; ++hbqno) |
3051 | lpfc_sli_hbqbuf_init_hbqs(phba, hbqno); | |
ed957684 JS |
3052 | return 0; |
3053 | } | |
3054 | ||
e59058c4 | 3055 | /** |
9399627f | 3056 | * lpfc_sli_config_port: Issue config port mailbox command. |
e59058c4 JS |
3057 | * @phba: Pointer to HBA context object. |
3058 | * @sli_mode: sli mode - 2/3 | |
3059 | * | |
3060 | * This function is called by the sli intialization code path | |
3061 | * to issue config_port mailbox command. This function restarts the | |
3062 | * HBA firmware and issues a config_port mailbox command to configure | |
3063 | * the SLI interface in the sli mode specified by sli_mode | |
3064 | * variable. The caller is not required to hold any locks. | |
3065 | * The function returns 0 if successful, else returns negative error | |
3066 | * code. | |
3067 | **/ | |
9399627f JS |
3068 | int |
3069 | lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode) | |
dea3101e | 3070 | { |
3071 | LPFC_MBOXQ_t *pmb; | |
3072 | uint32_t resetcount = 0, rc = 0, done = 0; | |
3073 | ||
3074 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
3075 | if (!pmb) { | |
2e0fef85 | 3076 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 3077 | return -ENOMEM; |
3078 | } | |
3079 | ||
ed957684 | 3080 | phba->sli_rev = sli_mode; |
dea3101e | 3081 | while (resetcount < 2 && !done) { |
2e0fef85 | 3082 | spin_lock_irq(&phba->hbalock); |
1c067a42 | 3083 | phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3084 | spin_unlock_irq(&phba->hbalock); |
92d7f7b0 | 3085 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 | 3086 | lpfc_sli_brdrestart(phba); |
dea3101e | 3087 | msleep(2500); |
3088 | rc = lpfc_sli_chipset_init(phba); | |
3089 | if (rc) | |
3090 | break; | |
3091 | ||
2e0fef85 | 3092 | spin_lock_irq(&phba->hbalock); |
1c067a42 | 3093 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3094 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 3095 | resetcount++; |
3096 | ||
ed957684 JS |
3097 | /* Call pre CONFIG_PORT mailbox command initialization. A |
3098 | * value of 0 means the call was successful. Any other | |
3099 | * nonzero value is a failure, but if ERESTART is returned, | |
3100 | * the driver may reset the HBA and try again. | |
3101 | */ | |
dea3101e | 3102 | rc = lpfc_config_port_prep(phba); |
3103 | if (rc == -ERESTART) { | |
ed957684 | 3104 | phba->link_state = LPFC_LINK_UNKNOWN; |
dea3101e | 3105 | continue; |
34b02dcd | 3106 | } else if (rc) |
dea3101e | 3107 | break; |
2e0fef85 | 3108 | phba->link_state = LPFC_INIT_MBX_CMDS; |
dea3101e | 3109 | lpfc_config_port(phba, pmb); |
3110 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
34b02dcd JS |
3111 | phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED | |
3112 | LPFC_SLI3_HBQ_ENABLED | | |
3113 | LPFC_SLI3_CRP_ENABLED | | |
3114 | LPFC_SLI3_INB_ENABLED); | |
ed957684 | 3115 | if (rc != MBX_SUCCESS) { |
dea3101e | 3116 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 3117 | "0442 Adapter failed to init, mbxCmd x%x " |
92d7f7b0 | 3118 | "CONFIG_PORT, mbxStatus x%x Data: x%x\n", |
e8b62011 | 3119 | pmb->mb.mbxCommand, pmb->mb.mbxStatus, 0); |
2e0fef85 | 3120 | spin_lock_irq(&phba->hbalock); |
dea3101e | 3121 | phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE; |
2e0fef85 JS |
3122 | spin_unlock_irq(&phba->hbalock); |
3123 | rc = -ENXIO; | |
34b02dcd | 3124 | } else |
ed957684 | 3125 | done = 1; |
dea3101e | 3126 | } |
ed957684 JS |
3127 | if (!done) { |
3128 | rc = -EINVAL; | |
3129 | goto do_prep_failed; | |
3130 | } | |
34b02dcd JS |
3131 | if (pmb->mb.un.varCfgPort.sli_mode == 3) { |
3132 | if (!pmb->mb.un.varCfgPort.cMA) { | |
3133 | rc = -ENXIO; | |
3134 | goto do_prep_failed; | |
3135 | } | |
3136 | if (phba->max_vpi && pmb->mb.un.varCfgPort.gmv) { | |
3137 | phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; | |
3138 | phba->max_vpi = pmb->mb.un.varCfgPort.max_vpi; | |
3139 | } else | |
3140 | phba->max_vpi = 0; | |
3141 | if (pmb->mb.un.varCfgPort.gerbm) | |
3142 | phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED; | |
3143 | if (pmb->mb.un.varCfgPort.gcrp) | |
3144 | phba->sli3_options |= LPFC_SLI3_CRP_ENABLED; | |
3145 | if (pmb->mb.un.varCfgPort.ginb) { | |
3146 | phba->sli3_options |= LPFC_SLI3_INB_ENABLED; | |
3147 | phba->port_gp = phba->mbox->us.s3_inb_pgp.port; | |
3148 | phba->inb_ha_copy = &phba->mbox->us.s3_inb_pgp.ha_copy; | |
3149 | phba->inb_counter = &phba->mbox->us.s3_inb_pgp.counter; | |
3150 | phba->inb_last_counter = | |
3151 | phba->mbox->us.s3_inb_pgp.counter; | |
3152 | } else { | |
3153 | phba->port_gp = phba->mbox->us.s3_pgp.port; | |
3154 | phba->inb_ha_copy = NULL; | |
3155 | phba->inb_counter = NULL; | |
3156 | } | |
3157 | } else { | |
3158 | phba->port_gp = phba->mbox->us.s2.port; | |
3159 | phba->inb_ha_copy = NULL; | |
3160 | phba->inb_counter = NULL; | |
d7c255b2 | 3161 | phba->max_vpi = 0; |
ed957684 | 3162 | } |
92d7f7b0 | 3163 | do_prep_failed: |
ed957684 JS |
3164 | mempool_free(pmb, phba->mbox_mem_pool); |
3165 | return rc; | |
3166 | } | |
3167 | ||
e59058c4 JS |
3168 | |
3169 | /** | |
3170 | * lpfc_sli_hba_setup: SLI intialization function. | |
3171 | * @phba: Pointer to HBA context object. | |
3172 | * | |
3173 | * This function is the main SLI intialization function. This function | |
3174 | * is called by the HBA intialization code, HBA reset code and HBA | |
3175 | * error attention handler code. Caller is not required to hold any | |
3176 | * locks. This function issues config_port mailbox command to configure | |
3177 | * the SLI, setup iocb rings and HBQ rings. In the end the function | |
3178 | * calls the config_port_post function to issue init_link mailbox | |
3179 | * command and to start the discovery. The function will return zero | |
3180 | * if successful, else it will return negative error code. | |
3181 | **/ | |
ed957684 JS |
3182 | int |
3183 | lpfc_sli_hba_setup(struct lpfc_hba *phba) | |
3184 | { | |
3185 | uint32_t rc; | |
92d7f7b0 | 3186 | int mode = 3; |
ed957684 JS |
3187 | |
3188 | switch (lpfc_sli_mode) { | |
3189 | case 2: | |
78b2d852 | 3190 | if (phba->cfg_enable_npiv) { |
92d7f7b0 | 3191 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 | 3192 | "1824 NPIV enabled: Override lpfc_sli_mode " |
92d7f7b0 | 3193 | "parameter (%d) to auto (0).\n", |
e8b62011 | 3194 | lpfc_sli_mode); |
92d7f7b0 JS |
3195 | break; |
3196 | } | |
ed957684 JS |
3197 | mode = 2; |
3198 | break; | |
3199 | case 0: | |
3200 | case 3: | |
3201 | break; | |
3202 | default: | |
92d7f7b0 | 3203 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 JS |
3204 | "1819 Unrecognized lpfc_sli_mode " |
3205 | "parameter: %d.\n", lpfc_sli_mode); | |
ed957684 JS |
3206 | |
3207 | break; | |
3208 | } | |
3209 | ||
9399627f JS |
3210 | rc = lpfc_sli_config_port(phba, mode); |
3211 | ||
ed957684 | 3212 | if (rc && lpfc_sli_mode == 3) |
92d7f7b0 | 3213 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 JS |
3214 | "1820 Unable to select SLI-3. " |
3215 | "Not supported by adapter.\n"); | |
ed957684 | 3216 | if (rc && mode != 2) |
9399627f | 3217 | rc = lpfc_sli_config_port(phba, 2); |
ed957684 | 3218 | if (rc) |
dea3101e | 3219 | goto lpfc_sli_hba_setup_error; |
3220 | ||
ed957684 JS |
3221 | if (phba->sli_rev == 3) { |
3222 | phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE; | |
3223 | phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE; | |
ed957684 JS |
3224 | } else { |
3225 | phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE; | |
3226 | phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE; | |
92d7f7b0 | 3227 | phba->sli3_options = 0; |
ed957684 JS |
3228 | } |
3229 | ||
3230 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
e8b62011 JS |
3231 | "0444 Firmware in SLI %x mode. Max_vpi %d\n", |
3232 | phba->sli_rev, phba->max_vpi); | |
ed957684 | 3233 | rc = lpfc_sli_ring_map(phba); |
dea3101e | 3234 | |
3235 | if (rc) | |
3236 | goto lpfc_sli_hba_setup_error; | |
3237 | ||
9399627f | 3238 | /* Init HBQs */ |
ed957684 JS |
3239 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
3240 | rc = lpfc_sli_hbq_setup(phba); | |
3241 | if (rc) | |
3242 | goto lpfc_sli_hba_setup_error; | |
3243 | } | |
3244 | ||
dea3101e | 3245 | phba->sli.sli_flag |= LPFC_PROCESS_LA; |
3246 | ||
3247 | rc = lpfc_config_port_post(phba); | |
3248 | if (rc) | |
3249 | goto lpfc_sli_hba_setup_error; | |
3250 | ||
ed957684 JS |
3251 | return rc; |
3252 | ||
92d7f7b0 | 3253 | lpfc_sli_hba_setup_error: |
2e0fef85 | 3254 | phba->link_state = LPFC_HBA_ERROR; |
ed957684 | 3255 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
e8b62011 | 3256 | "0445 Firmware initialization failed\n"); |
dea3101e | 3257 | return rc; |
3258 | } | |
3259 | ||
e59058c4 JS |
3260 | |
3261 | /** | |
3262 | * lpfc_mbox_timeout: Timeout call back function for mbox timer. | |
3263 | * @ptr: context object - pointer to hba structure. | |
dea3101e | 3264 | * |
e59058c4 JS |
3265 | * This is the callback function for mailbox timer. The mailbox |
3266 | * timer is armed when a new mailbox command is issued and the timer | |
3267 | * is deleted when the mailbox complete. The function is called by | |
3268 | * the kernel timer code when a mailbox does not complete within | |
3269 | * expected time. This function wakes up the worker thread to | |
3270 | * process the mailbox timeout and returns. All the processing is | |
3271 | * done by the worker thread function lpfc_mbox_timeout_handler. | |
3272 | **/ | |
dea3101e | 3273 | void |
3274 | lpfc_mbox_timeout(unsigned long ptr) | |
3275 | { | |
92d7f7b0 | 3276 | struct lpfc_hba *phba = (struct lpfc_hba *) ptr; |
dea3101e | 3277 | unsigned long iflag; |
2e0fef85 | 3278 | uint32_t tmo_posted; |
dea3101e | 3279 | |
2e0fef85 | 3280 | spin_lock_irqsave(&phba->pport->work_port_lock, iflag); |
92d7f7b0 | 3281 | tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO; |
2e0fef85 JS |
3282 | if (!tmo_posted) |
3283 | phba->pport->work_port_events |= WORKER_MBOX_TMO; | |
3284 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); | |
3285 | ||
5e9d9b82 JS |
3286 | if (!tmo_posted) |
3287 | lpfc_worker_wake_up(phba); | |
3288 | return; | |
dea3101e | 3289 | } |
3290 | ||
e59058c4 JS |
3291 | |
3292 | /** | |
3293 | * lpfc_mbox_timeout_handler: Worker thread function to handle mailbox timeout. | |
3294 | * @phba: Pointer to HBA context object. | |
3295 | * | |
3296 | * This function is called from worker thread when a mailbox command times out. | |
3297 | * The caller is not required to hold any locks. This function will reset the | |
3298 | * HBA and recover all the pending commands. | |
3299 | **/ | |
dea3101e | 3300 | void |
3301 | lpfc_mbox_timeout_handler(struct lpfc_hba *phba) | |
3302 | { | |
2e0fef85 JS |
3303 | LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active; |
3304 | MAILBOX_t *mb = &pmbox->mb; | |
1dcb58e5 JS |
3305 | struct lpfc_sli *psli = &phba->sli; |
3306 | struct lpfc_sli_ring *pring; | |
dea3101e | 3307 | |
2e0fef85 | 3308 | if (!(phba->pport->work_port_events & WORKER_MBOX_TMO)) { |
dea3101e | 3309 | return; |
3310 | } | |
3311 | ||
dea3101e | 3312 | /* Mbox cmd <mbxCommand> timeout */ |
ed957684 | 3313 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
e8b62011 | 3314 | "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n", |
92d7f7b0 JS |
3315 | mb->mbxCommand, |
3316 | phba->pport->port_state, | |
3317 | phba->sli.sli_flag, | |
3318 | phba->sli.mbox_active); | |
dea3101e | 3319 | |
1dcb58e5 JS |
3320 | /* Setting state unknown so lpfc_sli_abort_iocb_ring |
3321 | * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing | |
3322 | * it to fail all oustanding SCSI IO. | |
3323 | */ | |
2e0fef85 JS |
3324 | spin_lock_irq(&phba->pport->work_port_lock); |
3325 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; | |
3326 | spin_unlock_irq(&phba->pport->work_port_lock); | |
3327 | spin_lock_irq(&phba->hbalock); | |
3328 | phba->link_state = LPFC_LINK_UNKNOWN; | |
1dcb58e5 | 3329 | psli->sli_flag &= ~LPFC_SLI2_ACTIVE; |
2e0fef85 | 3330 | spin_unlock_irq(&phba->hbalock); |
1dcb58e5 JS |
3331 | |
3332 | pring = &psli->ring[psli->fcp_ring]; | |
3333 | lpfc_sli_abort_iocb_ring(phba, pring); | |
3334 | ||
3335 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
76bb24ef | 3336 | "0345 Resetting board due to mailbox timeout\n"); |
1dcb58e5 JS |
3337 | /* |
3338 | * lpfc_offline calls lpfc_sli_hba_down which will clean up | |
3339 | * on oustanding mailbox commands. | |
3340 | */ | |
13815c83 JS |
3341 | /* If resets are disabled then set error state and return. */ |
3342 | if (!phba->cfg_enable_hba_reset) { | |
3343 | phba->link_state = LPFC_HBA_ERROR; | |
3344 | return; | |
3345 | } | |
1dcb58e5 JS |
3346 | lpfc_offline_prep(phba); |
3347 | lpfc_offline(phba); | |
3348 | lpfc_sli_brdrestart(phba); | |
58da1ffb | 3349 | lpfc_online(phba); |
1dcb58e5 | 3350 | lpfc_unblock_mgmt_io(phba); |
dea3101e | 3351 | return; |
3352 | } | |
3353 | ||
e59058c4 JS |
3354 | /** |
3355 | * lpfc_sli_issue_mbox: Issue a mailbox command to firmware. | |
3356 | * @phba: Pointer to HBA context object. | |
3357 | * @pmbox: Pointer to mailbox object. | |
3358 | * @flag: Flag indicating how the mailbox need to be processed. | |
3359 | * | |
3360 | * This function is called by discovery code and HBA management code | |
3361 | * to submit a mailbox command to firmware. This function gets the | |
3362 | * hbalock to protect the data structures. | |
3363 | * The mailbox command can be submitted in polling mode, in which case | |
3364 | * this function will wait in a polling loop for the completion of the | |
3365 | * mailbox. | |
3366 | * If the mailbox is submitted in no_wait mode (not polling) the | |
3367 | * function will submit the command and returns immediately without waiting | |
3368 | * for the mailbox completion. The no_wait is supported only when HBA | |
3369 | * is in SLI2/SLI3 mode - interrupts are enabled. | |
3370 | * The SLI interface allows only one mailbox pending at a time. If the | |
3371 | * mailbox is issued in polling mode and there is already a mailbox | |
3372 | * pending, then the function will return an error. If the mailbox is issued | |
3373 | * in NO_WAIT mode and there is a mailbox pending already, the function | |
3374 | * will return MBX_BUSY after queuing the mailbox into mailbox queue. | |
3375 | * The sli layer owns the mailbox object until the completion of mailbox | |
3376 | * command if this function return MBX_BUSY or MBX_SUCCESS. For all other | |
3377 | * return codes the caller owns the mailbox command after the return of | |
3378 | * the function. | |
3379 | **/ | |
dea3101e | 3380 | int |
2e0fef85 | 3381 | lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag) |
dea3101e | 3382 | { |
dea3101e | 3383 | MAILBOX_t *mb; |
2e0fef85 | 3384 | struct lpfc_sli *psli = &phba->sli; |
dea3101e | 3385 | uint32_t status, evtctr; |
3386 | uint32_t ha_copy; | |
3387 | int i; | |
09372820 | 3388 | unsigned long timeout; |
dea3101e | 3389 | unsigned long drvr_flag = 0; |
34b02dcd | 3390 | uint32_t word0, ldata; |
dea3101e | 3391 | void __iomem *to_slim; |
58da1ffb JS |
3392 | int processing_queue = 0; |
3393 | ||
3394 | spin_lock_irqsave(&phba->hbalock, drvr_flag); | |
3395 | if (!pmbox) { | |
3396 | /* processing mbox queue from intr_handler */ | |
3397 | processing_queue = 1; | |
3398 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
3399 | pmbox = lpfc_mbox_get(phba); | |
3400 | if (!pmbox) { | |
3401 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
3402 | return MBX_SUCCESS; | |
3403 | } | |
3404 | } | |
dea3101e | 3405 | |
ed957684 | 3406 | if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl && |
92d7f7b0 | 3407 | pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) { |
ed957684 | 3408 | if(!pmbox->vport) { |
58da1ffb | 3409 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
ed957684 | 3410 | lpfc_printf_log(phba, KERN_ERR, |
92d7f7b0 | 3411 | LOG_MBOX | LOG_VPORT, |
e8b62011 | 3412 | "1806 Mbox x%x failed. No vport\n", |
ed957684 JS |
3413 | pmbox->mb.mbxCommand); |
3414 | dump_stack(); | |
58da1ffb | 3415 | goto out_not_finished; |
ed957684 JS |
3416 | } |
3417 | } | |
3418 | ||
8d63f375 | 3419 | /* If the PCI channel is in offline state, do not post mbox. */ |
58da1ffb JS |
3420 | if (unlikely(pci_channel_offline(phba->pcidev))) { |
3421 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
3422 | goto out_not_finished; | |
3423 | } | |
8d63f375 | 3424 | |
dea3101e | 3425 | psli = &phba->sli; |
92d7f7b0 | 3426 | |
dea3101e | 3427 | mb = &pmbox->mb; |
3428 | status = MBX_SUCCESS; | |
3429 | ||
2e0fef85 JS |
3430 | if (phba->link_state == LPFC_HBA_ERROR) { |
3431 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
41415862 JW |
3432 | |
3433 | /* Mbox command <mbxCommand> cannot issue */ | |
7f5f3d0d | 3434 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); |
58da1ffb | 3435 | goto out_not_finished; |
41415862 JW |
3436 | } |
3437 | ||
9290831f JS |
3438 | if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT && |
3439 | !(readl(phba->HCregaddr) & HC_MBINT_ENA)) { | |
2e0fef85 | 3440 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
7f5f3d0d | 3441 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); |
58da1ffb | 3442 | goto out_not_finished; |
9290831f JS |
3443 | } |
3444 | ||
dea3101e | 3445 | if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { |
3446 | /* Polling for a mbox command when another one is already active | |
3447 | * is not allowed in SLI. Also, the driver must have established | |
3448 | * SLI2 mode to queue and process multiple mbox commands. | |
3449 | */ | |
3450 | ||
3451 | if (flag & MBX_POLL) { | |
2e0fef85 | 3452 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 3453 | |
3454 | /* Mbox command <mbxCommand> cannot issue */ | |
92d7f7b0 | 3455 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); |
58da1ffb | 3456 | goto out_not_finished; |
dea3101e | 3457 | } |
3458 | ||
3459 | if (!(psli->sli_flag & LPFC_SLI2_ACTIVE)) { | |
2e0fef85 | 3460 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 3461 | /* Mbox command <mbxCommand> cannot issue */ |
92d7f7b0 | 3462 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); |
58da1ffb | 3463 | goto out_not_finished; |
dea3101e | 3464 | } |
3465 | ||
dea3101e | 3466 | /* Another mailbox command is still being processed, queue this |
3467 | * command to be processed later. | |
3468 | */ | |
3469 | lpfc_mbox_put(phba, pmbox); | |
3470 | ||
3471 | /* Mbox cmd issue - BUSY */ | |
ed957684 | 3472 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
e8b62011 | 3473 | "(%d):0308 Mbox cmd issue - BUSY Data: " |
92d7f7b0 | 3474 | "x%x x%x x%x x%x\n", |
92d7f7b0 JS |
3475 | pmbox->vport ? pmbox->vport->vpi : 0xffffff, |
3476 | mb->mbxCommand, phba->pport->port_state, | |
3477 | psli->sli_flag, flag); | |
dea3101e | 3478 | |
3479 | psli->slistat.mbox_busy++; | |
2e0fef85 | 3480 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 3481 | |
858c9f6c JS |
3482 | if (pmbox->vport) { |
3483 | lpfc_debugfs_disc_trc(pmbox->vport, | |
3484 | LPFC_DISC_TRC_MBOX_VPORT, | |
3485 | "MBOX Bsy vport: cmd:x%x mb:x%x x%x", | |
3486 | (uint32_t)mb->mbxCommand, | |
3487 | mb->un.varWords[0], mb->un.varWords[1]); | |
3488 | } | |
3489 | else { | |
3490 | lpfc_debugfs_disc_trc(phba->pport, | |
3491 | LPFC_DISC_TRC_MBOX, | |
3492 | "MBOX Bsy: cmd:x%x mb:x%x x%x", | |
3493 | (uint32_t)mb->mbxCommand, | |
3494 | mb->un.varWords[0], mb->un.varWords[1]); | |
3495 | } | |
3496 | ||
2e0fef85 | 3497 | return MBX_BUSY; |
dea3101e | 3498 | } |
3499 | ||
dea3101e | 3500 | psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; |
3501 | ||
3502 | /* If we are not polling, we MUST be in SLI2 mode */ | |
3503 | if (flag != MBX_POLL) { | |
41415862 JW |
3504 | if (!(psli->sli_flag & LPFC_SLI2_ACTIVE) && |
3505 | (mb->mbxCommand != MBX_KILL_BOARD)) { | |
dea3101e | 3506 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3507 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 3508 | /* Mbox command <mbxCommand> cannot issue */ |
92d7f7b0 | 3509 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); |
58da1ffb | 3510 | goto out_not_finished; |
dea3101e | 3511 | } |
3512 | /* timeout active mbox command */ | |
a309a6b6 JS |
3513 | mod_timer(&psli->mbox_tmo, (jiffies + |
3514 | (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand)))); | |
dea3101e | 3515 | } |
3516 | ||
3517 | /* Mailbox cmd <cmd> issue */ | |
ed957684 | 3518 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
e8b62011 | 3519 | "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x " |
92d7f7b0 | 3520 | "x%x\n", |
e8b62011 | 3521 | pmbox->vport ? pmbox->vport->vpi : 0, |
92d7f7b0 JS |
3522 | mb->mbxCommand, phba->pport->port_state, |
3523 | psli->sli_flag, flag); | |
dea3101e | 3524 | |
858c9f6c JS |
3525 | if (mb->mbxCommand != MBX_HEARTBEAT) { |
3526 | if (pmbox->vport) { | |
3527 | lpfc_debugfs_disc_trc(pmbox->vport, | |
3528 | LPFC_DISC_TRC_MBOX_VPORT, | |
3529 | "MBOX Send vport: cmd:x%x mb:x%x x%x", | |
3530 | (uint32_t)mb->mbxCommand, | |
3531 | mb->un.varWords[0], mb->un.varWords[1]); | |
3532 | } | |
3533 | else { | |
3534 | lpfc_debugfs_disc_trc(phba->pport, | |
3535 | LPFC_DISC_TRC_MBOX, | |
3536 | "MBOX Send: cmd:x%x mb:x%x x%x", | |
3537 | (uint32_t)mb->mbxCommand, | |
3538 | mb->un.varWords[0], mb->un.varWords[1]); | |
3539 | } | |
3540 | } | |
3541 | ||
dea3101e | 3542 | psli->slistat.mbox_cmd++; |
3543 | evtctr = psli->slistat.mbox_event; | |
3544 | ||
3545 | /* next set own bit for the adapter and copy over command word */ | |
3546 | mb->mbxOwner = OWN_CHIP; | |
3547 | ||
3548 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
dea3101e | 3549 | /* First copy command data to host SLIM area */ |
34b02dcd | 3550 | lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE); |
dea3101e | 3551 | } else { |
9290831f | 3552 | if (mb->mbxCommand == MBX_CONFIG_PORT) { |
dea3101e | 3553 | /* copy command data into host mbox for cmpl */ |
34b02dcd | 3554 | lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE); |
dea3101e | 3555 | } |
3556 | ||
3557 | /* First copy mbox command data to HBA SLIM, skip past first | |
3558 | word */ | |
3559 | to_slim = phba->MBslimaddr + sizeof (uint32_t); | |
3560 | lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0], | |
3561 | MAILBOX_CMD_SIZE - sizeof (uint32_t)); | |
3562 | ||
3563 | /* Next copy over first word, with mbxOwner set */ | |
34b02dcd | 3564 | ldata = *((uint32_t *)mb); |
dea3101e | 3565 | to_slim = phba->MBslimaddr; |
3566 | writel(ldata, to_slim); | |
3567 | readl(to_slim); /* flush */ | |
3568 | ||
3569 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
3570 | /* switch over to host mailbox */ | |
3571 | psli->sli_flag |= LPFC_SLI2_ACTIVE; | |
3572 | } | |
3573 | } | |
3574 | ||
3575 | wmb(); | |
dea3101e | 3576 | |
3577 | switch (flag) { | |
3578 | case MBX_NOWAIT: | |
09372820 | 3579 | /* Set up reference to mailbox command */ |
dea3101e | 3580 | psli->mbox_active = pmbox; |
09372820 JS |
3581 | /* Interrupt board to do it */ |
3582 | writel(CA_MBATT, phba->CAregaddr); | |
3583 | readl(phba->CAregaddr); /* flush */ | |
3584 | /* Don't wait for it to finish, just return */ | |
dea3101e | 3585 | break; |
3586 | ||
3587 | case MBX_POLL: | |
09372820 | 3588 | /* Set up null reference to mailbox command */ |
dea3101e | 3589 | psli->mbox_active = NULL; |
09372820 JS |
3590 | /* Interrupt board to do it */ |
3591 | writel(CA_MBATT, phba->CAregaddr); | |
3592 | readl(phba->CAregaddr); /* flush */ | |
3593 | ||
dea3101e | 3594 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { |
3595 | /* First read mbox status word */ | |
34b02dcd | 3596 | word0 = *((uint32_t *)phba->mbox); |
dea3101e | 3597 | word0 = le32_to_cpu(word0); |
3598 | } else { | |
3599 | /* First read mbox status word */ | |
3600 | word0 = readl(phba->MBslimaddr); | |
3601 | } | |
3602 | ||
3603 | /* Read the HBA Host Attention Register */ | |
3604 | ha_copy = readl(phba->HAregaddr); | |
09372820 JS |
3605 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, |
3606 | mb->mbxCommand) * | |
3607 | 1000) + jiffies; | |
3608 | i = 0; | |
dea3101e | 3609 | /* Wait for command to complete */ |
41415862 JW |
3610 | while (((word0 & OWN_CHIP) == OWN_CHIP) || |
3611 | (!(ha_copy & HA_MBATT) && | |
2e0fef85 | 3612 | (phba->link_state > LPFC_WARM_START))) { |
09372820 | 3613 | if (time_after(jiffies, timeout)) { |
dea3101e | 3614 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3615 | spin_unlock_irqrestore(&phba->hbalock, |
dea3101e | 3616 | drvr_flag); |
58da1ffb | 3617 | goto out_not_finished; |
dea3101e | 3618 | } |
3619 | ||
3620 | /* Check if we took a mbox interrupt while we were | |
3621 | polling */ | |
3622 | if (((word0 & OWN_CHIP) != OWN_CHIP) | |
3623 | && (evtctr != psli->slistat.mbox_event)) | |
3624 | break; | |
3625 | ||
09372820 JS |
3626 | if (i++ > 10) { |
3627 | spin_unlock_irqrestore(&phba->hbalock, | |
3628 | drvr_flag); | |
3629 | msleep(1); | |
3630 | spin_lock_irqsave(&phba->hbalock, drvr_flag); | |
3631 | } | |
dea3101e | 3632 | |
3633 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
3634 | /* First copy command data */ | |
34b02dcd | 3635 | word0 = *((uint32_t *)phba->mbox); |
dea3101e | 3636 | word0 = le32_to_cpu(word0); |
3637 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
3638 | MAILBOX_t *slimmb; | |
34b02dcd | 3639 | uint32_t slimword0; |
dea3101e | 3640 | /* Check real SLIM for any errors */ |
3641 | slimword0 = readl(phba->MBslimaddr); | |
3642 | slimmb = (MAILBOX_t *) & slimword0; | |
3643 | if (((slimword0 & OWN_CHIP) != OWN_CHIP) | |
3644 | && slimmb->mbxStatus) { | |
3645 | psli->sli_flag &= | |
3646 | ~LPFC_SLI2_ACTIVE; | |
3647 | word0 = slimword0; | |
3648 | } | |
3649 | } | |
3650 | } else { | |
3651 | /* First copy command data */ | |
3652 | word0 = readl(phba->MBslimaddr); | |
3653 | } | |
3654 | /* Read the HBA Host Attention Register */ | |
3655 | ha_copy = readl(phba->HAregaddr); | |
3656 | } | |
3657 | ||
3658 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
dea3101e | 3659 | /* copy results back to user */ |
34b02dcd | 3660 | lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE); |
dea3101e | 3661 | } else { |
3662 | /* First copy command data */ | |
3663 | lpfc_memcpy_from_slim(mb, phba->MBslimaddr, | |
3664 | MAILBOX_CMD_SIZE); | |
3665 | if ((mb->mbxCommand == MBX_DUMP_MEMORY) && | |
3666 | pmbox->context2) { | |
92d7f7b0 | 3667 | lpfc_memcpy_from_slim((void *)pmbox->context2, |
dea3101e | 3668 | phba->MBslimaddr + DMP_RSP_OFFSET, |
3669 | mb->un.varDmp.word_cnt); | |
3670 | } | |
3671 | } | |
3672 | ||
3673 | writel(HA_MBATT, phba->HAregaddr); | |
3674 | readl(phba->HAregaddr); /* flush */ | |
3675 | ||
3676 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
3677 | status = mb->mbxStatus; | |
3678 | } | |
3679 | ||
2e0fef85 JS |
3680 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
3681 | return status; | |
58da1ffb JS |
3682 | |
3683 | out_not_finished: | |
3684 | if (processing_queue) { | |
3685 | pmbox->mb.mbxStatus = MBX_NOT_FINISHED; | |
3686 | lpfc_mbox_cmpl_put(phba, pmbox); | |
3687 | } | |
3688 | return MBX_NOT_FINISHED; | |
dea3101e | 3689 | } |
3690 | ||
e59058c4 JS |
3691 | /** |
3692 | * __lpfc_sli_ringtx_put: Add an iocb to the txq. | |
3693 | * @phba: Pointer to HBA context object. | |
3694 | * @pring: Pointer to driver SLI ring object. | |
3695 | * @piocb: Pointer to address of newly added command iocb. | |
3696 | * | |
3697 | * This function is called with hbalock held to add a command | |
3698 | * iocb to the txq when SLI layer cannot submit the command iocb | |
3699 | * to the ring. | |
3700 | **/ | |
858c9f6c | 3701 | static void |
92d7f7b0 | 3702 | __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
2e0fef85 | 3703 | struct lpfc_iocbq *piocb) |
dea3101e | 3704 | { |
3705 | /* Insert the caller's iocb in the txq tail for later processing. */ | |
3706 | list_add_tail(&piocb->list, &pring->txq); | |
3707 | pring->txq_cnt++; | |
dea3101e | 3708 | } |
3709 | ||
e59058c4 JS |
3710 | /** |
3711 | * lpfc_sli_next_iocb: Get the next iocb in the txq. | |
3712 | * @phba: Pointer to HBA context object. | |
3713 | * @pring: Pointer to driver SLI ring object. | |
3714 | * @piocb: Pointer to address of newly added command iocb. | |
3715 | * | |
3716 | * This function is called with hbalock held before a new | |
3717 | * iocb is submitted to the firmware. This function checks | |
3718 | * txq to flush the iocbs in txq to Firmware before | |
3719 | * submitting new iocbs to the Firmware. | |
3720 | * If there are iocbs in the txq which need to be submitted | |
3721 | * to firmware, lpfc_sli_next_iocb returns the first element | |
3722 | * of the txq after dequeuing it from txq. | |
3723 | * If there is no iocb in the txq then the function will return | |
3724 | * *piocb and *piocb is set to NULL. Caller needs to check | |
3725 | * *piocb to find if there are more commands in the txq. | |
3726 | **/ | |
dea3101e | 3727 | static struct lpfc_iocbq * |
3728 | lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2e0fef85 | 3729 | struct lpfc_iocbq **piocb) |
dea3101e | 3730 | { |
3731 | struct lpfc_iocbq * nextiocb; | |
3732 | ||
3733 | nextiocb = lpfc_sli_ringtx_get(phba, pring); | |
3734 | if (!nextiocb) { | |
3735 | nextiocb = *piocb; | |
3736 | *piocb = NULL; | |
3737 | } | |
3738 | ||
3739 | return nextiocb; | |
3740 | } | |
3741 | ||
e59058c4 JS |
3742 | /** |
3743 | * __lpfc_sli_issue_iocb: Lockless version of lpfc_sli_issue_iocb. | |
3744 | * @phba: Pointer to HBA context object. | |
3745 | * @pring: Pointer to driver SLI ring object. | |
3746 | * @piocb: Pointer to command iocb. | |
3747 | * @flag: Flag indicating if this command can be put into txq. | |
3748 | * | |
3749 | * __lpfc_sli_issue_iocb is used by other functions in the driver | |
3750 | * to issue an iocb command to the HBA. If the PCI slot is recovering | |
3751 | * from error state or if HBA is resetting or if LPFC_STOP_IOCB_EVENT | |
3752 | * flag is turned on, the function returns IOCB_ERROR. | |
3753 | * When the link is down, this function allows only iocbs for | |
3754 | * posting buffers. | |
3755 | * This function finds next available slot in the command ring and | |
3756 | * posts the command to the available slot and writes the port | |
3757 | * attention register to request HBA start processing new iocb. | |
3758 | * If there is no slot available in the ring and | |
3759 | * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the | |
3760 | * txq, otherwise the function returns IOCB_BUSY. | |
3761 | * | |
3762 | * This function is called with hbalock held. | |
3763 | * The function will return success after it successfully submit the | |
3764 | * iocb to firmware or after adding to the txq. | |
3765 | **/ | |
98c9ea5c | 3766 | static int |
92d7f7b0 | 3767 | __lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
dea3101e | 3768 | struct lpfc_iocbq *piocb, uint32_t flag) |
3769 | { | |
3770 | struct lpfc_iocbq *nextiocb; | |
3771 | IOCB_t *iocb; | |
3772 | ||
92d7f7b0 JS |
3773 | if (piocb->iocb_cmpl && (!piocb->vport) && |
3774 | (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) && | |
3775 | (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) { | |
3776 | lpfc_printf_log(phba, KERN_ERR, | |
3777 | LOG_SLI | LOG_VPORT, | |
e8b62011 | 3778 | "1807 IOCB x%x failed. No vport\n", |
92d7f7b0 JS |
3779 | piocb->iocb.ulpCommand); |
3780 | dump_stack(); | |
3781 | return IOCB_ERROR; | |
3782 | } | |
3783 | ||
3784 | ||
8d63f375 LV |
3785 | /* If the PCI channel is in offline state, do not post iocbs. */ |
3786 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
3787 | return IOCB_ERROR; | |
3788 | ||
dea3101e | 3789 | /* |
3790 | * We should never get an IOCB if we are in a < LINK_DOWN state | |
3791 | */ | |
2e0fef85 | 3792 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) |
dea3101e | 3793 | return IOCB_ERROR; |
3794 | ||
3795 | /* | |
3796 | * Check to see if we are blocking IOCB processing because of a | |
0b727fea | 3797 | * outstanding event. |
dea3101e | 3798 | */ |
0b727fea | 3799 | if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT)) |
dea3101e | 3800 | goto iocb_busy; |
3801 | ||
2e0fef85 | 3802 | if (unlikely(phba->link_state == LPFC_LINK_DOWN)) { |
dea3101e | 3803 | /* |
2680eeaa | 3804 | * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF |
dea3101e | 3805 | * can be issued if the link is not up. |
3806 | */ | |
3807 | switch (piocb->iocb.ulpCommand) { | |
84774a4d JS |
3808 | case CMD_GEN_REQUEST64_CR: |
3809 | case CMD_GEN_REQUEST64_CX: | |
3810 | if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) || | |
3811 | (piocb->iocb.un.genreq64.w5.hcsw.Rctl != | |
3812 | FC_FCP_CMND) || | |
3813 | (piocb->iocb.un.genreq64.w5.hcsw.Type != | |
3814 | MENLO_TRANSPORT_TYPE)) | |
3815 | ||
3816 | goto iocb_busy; | |
3817 | break; | |
dea3101e | 3818 | case CMD_QUE_RING_BUF_CN: |
3819 | case CMD_QUE_RING_BUF64_CN: | |
dea3101e | 3820 | /* |
3821 | * For IOCBs, like QUE_RING_BUF, that have no rsp ring | |
3822 | * completion, iocb_cmpl MUST be 0. | |
3823 | */ | |
3824 | if (piocb->iocb_cmpl) | |
3825 | piocb->iocb_cmpl = NULL; | |
3826 | /*FALLTHROUGH*/ | |
3827 | case CMD_CREATE_XRI_CR: | |
2680eeaa JS |
3828 | case CMD_CLOSE_XRI_CN: |
3829 | case CMD_CLOSE_XRI_CX: | |
dea3101e | 3830 | break; |
3831 | default: | |
3832 | goto iocb_busy; | |
3833 | } | |
3834 | ||
3835 | /* | |
3836 | * For FCP commands, we must be in a state where we can process link | |
3837 | * attention events. | |
3838 | */ | |
3839 | } else if (unlikely(pring->ringno == phba->sli.fcp_ring && | |
92d7f7b0 | 3840 | !(phba->sli.sli_flag & LPFC_PROCESS_LA))) { |
dea3101e | 3841 | goto iocb_busy; |
92d7f7b0 | 3842 | } |
dea3101e | 3843 | |
dea3101e | 3844 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && |
3845 | (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb))) | |
3846 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
3847 | ||
3848 | if (iocb) | |
3849 | lpfc_sli_update_ring(phba, pring); | |
3850 | else | |
3851 | lpfc_sli_update_full_ring(phba, pring); | |
3852 | ||
3853 | if (!piocb) | |
3854 | return IOCB_SUCCESS; | |
3855 | ||
3856 | goto out_busy; | |
3857 | ||
3858 | iocb_busy: | |
3859 | pring->stats.iocb_cmd_delay++; | |
3860 | ||
3861 | out_busy: | |
3862 | ||
3863 | if (!(flag & SLI_IOCB_RET_IOCB)) { | |
92d7f7b0 | 3864 | __lpfc_sli_ringtx_put(phba, pring, piocb); |
dea3101e | 3865 | return IOCB_SUCCESS; |
3866 | } | |
3867 | ||
3868 | return IOCB_BUSY; | |
3869 | } | |
3870 | ||
92d7f7b0 | 3871 | |
e59058c4 JS |
3872 | /** |
3873 | * lpfc_sli_issue_iocb: Wrapper function for __lpfc_sli_issue_iocb. | |
3874 | * @phba: Pointer to HBA context object. | |
3875 | * @pring: Pointer to driver SLI ring object. | |
3876 | * @piocb: Pointer to command iocb. | |
3877 | * @flag: Flag indicating if this command can be put into txq. | |
3878 | * | |
3879 | * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb | |
3880 | * function. This function gets the hbalock and calls | |
3881 | * __lpfc_sli_issue_iocb function and will return the error returned | |
3882 | * by __lpfc_sli_issue_iocb function. This wrapper is used by | |
3883 | * functions which do not hold hbalock. | |
3884 | **/ | |
92d7f7b0 JS |
3885 | int |
3886 | lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
3887 | struct lpfc_iocbq *piocb, uint32_t flag) | |
3888 | { | |
3889 | unsigned long iflags; | |
3890 | int rc; | |
3891 | ||
3892 | spin_lock_irqsave(&phba->hbalock, iflags); | |
3893 | rc = __lpfc_sli_issue_iocb(phba, pring, piocb, flag); | |
3894 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
3895 | ||
3896 | return rc; | |
3897 | } | |
3898 | ||
e59058c4 JS |
3899 | /** |
3900 | * lpfc_extra_ring_setup: Extra ring setup function. | |
3901 | * @phba: Pointer to HBA context object. | |
3902 | * | |
3903 | * This function is called while driver attaches with the | |
3904 | * HBA to setup the extra ring. The extra ring is used | |
3905 | * only when driver needs to support target mode functionality | |
3906 | * or IP over FC functionalities. | |
3907 | * | |
3908 | * This function is called with no lock held. | |
3909 | **/ | |
cf5bf97e JW |
3910 | static int |
3911 | lpfc_extra_ring_setup( struct lpfc_hba *phba) | |
3912 | { | |
3913 | struct lpfc_sli *psli; | |
3914 | struct lpfc_sli_ring *pring; | |
3915 | ||
3916 | psli = &phba->sli; | |
3917 | ||
3918 | /* Adjust cmd/rsp ring iocb entries more evenly */ | |
a4bc3379 JS |
3919 | |
3920 | /* Take some away from the FCP ring */ | |
cf5bf97e JW |
3921 | pring = &psli->ring[psli->fcp_ring]; |
3922 | pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
3923 | pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
3924 | pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
3925 | pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
3926 | ||
a4bc3379 JS |
3927 | /* and give them to the extra ring */ |
3928 | pring = &psli->ring[psli->extra_ring]; | |
3929 | ||
cf5bf97e JW |
3930 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; |
3931 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
3932 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
3933 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
3934 | ||
3935 | /* Setup default profile for this ring */ | |
3936 | pring->iotag_max = 4096; | |
3937 | pring->num_mask = 1; | |
3938 | pring->prt[0].profile = 0; /* Mask 0 */ | |
a4bc3379 JS |
3939 | pring->prt[0].rctl = phba->cfg_multi_ring_rctl; |
3940 | pring->prt[0].type = phba->cfg_multi_ring_type; | |
cf5bf97e JW |
3941 | pring->prt[0].lpfc_sli_rcv_unsol_event = NULL; |
3942 | return 0; | |
3943 | } | |
3944 | ||
e59058c4 JS |
3945 | /** |
3946 | * lpfc_sli_async_event_handler: ASYNC iocb handler function. | |
3947 | * @phba: Pointer to HBA context object. | |
3948 | * @pring: Pointer to driver SLI ring object. | |
3949 | * @iocbq: Pointer to iocb object. | |
3950 | * | |
3951 | * This function is called by the slow ring event handler | |
3952 | * function when there is an ASYNC event iocb in the ring. | |
3953 | * This function is called with no lock held. | |
3954 | * Currently this function handles only temperature related | |
3955 | * ASYNC events. The function decodes the temperature sensor | |
3956 | * event message and posts events for the management applications. | |
3957 | **/ | |
98c9ea5c | 3958 | static void |
57127f15 JS |
3959 | lpfc_sli_async_event_handler(struct lpfc_hba * phba, |
3960 | struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq) | |
3961 | { | |
3962 | IOCB_t *icmd; | |
3963 | uint16_t evt_code; | |
3964 | uint16_t temp; | |
3965 | struct temp_event temp_event_data; | |
3966 | struct Scsi_Host *shost; | |
3967 | ||
3968 | icmd = &iocbq->iocb; | |
3969 | evt_code = icmd->un.asyncstat.evt_code; | |
3970 | temp = icmd->ulpContext; | |
3971 | ||
3972 | if ((evt_code != ASYNC_TEMP_WARN) && | |
3973 | (evt_code != ASYNC_TEMP_SAFE)) { | |
3974 | lpfc_printf_log(phba, | |
3975 | KERN_ERR, | |
3976 | LOG_SLI, | |
76bb24ef | 3977 | "0346 Ring %d handler: unexpected ASYNC_STATUS" |
57127f15 JS |
3978 | " evt_code 0x%x\n", |
3979 | pring->ringno, | |
3980 | icmd->un.asyncstat.evt_code); | |
3981 | return; | |
3982 | } | |
3983 | temp_event_data.data = (uint32_t)temp; | |
3984 | temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; | |
3985 | if (evt_code == ASYNC_TEMP_WARN) { | |
3986 | temp_event_data.event_code = LPFC_THRESHOLD_TEMP; | |
3987 | lpfc_printf_log(phba, | |
09372820 | 3988 | KERN_ERR, |
57127f15 | 3989 | LOG_TEMP, |
76bb24ef | 3990 | "0347 Adapter is very hot, please take " |
57127f15 JS |
3991 | "corrective action. temperature : %d Celsius\n", |
3992 | temp); | |
3993 | } | |
3994 | if (evt_code == ASYNC_TEMP_SAFE) { | |
3995 | temp_event_data.event_code = LPFC_NORMAL_TEMP; | |
3996 | lpfc_printf_log(phba, | |
09372820 | 3997 | KERN_ERR, |
57127f15 JS |
3998 | LOG_TEMP, |
3999 | "0340 Adapter temperature is OK now. " | |
4000 | "temperature : %d Celsius\n", | |
4001 | temp); | |
4002 | } | |
4003 | ||
4004 | /* Send temperature change event to applications */ | |
4005 | shost = lpfc_shost_from_vport(phba->pport); | |
4006 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
4007 | sizeof(temp_event_data), (char *) &temp_event_data, | |
ddcc50f0 | 4008 | LPFC_NL_VENDOR_ID); |
57127f15 JS |
4009 | |
4010 | } | |
4011 | ||
4012 | ||
e59058c4 JS |
4013 | /** |
4014 | * lpfc_sli_setup: SLI ring setup function. | |
4015 | * @phba: Pointer to HBA context object. | |
4016 | * | |
4017 | * lpfc_sli_setup sets up rings of the SLI interface with | |
4018 | * number of iocbs per ring and iotags. This function is | |
4019 | * called while driver attach to the HBA and before the | |
4020 | * interrupts are enabled. So there is no need for locking. | |
4021 | * | |
4022 | * This function always returns 0. | |
4023 | **/ | |
dea3101e | 4024 | int |
4025 | lpfc_sli_setup(struct lpfc_hba *phba) | |
4026 | { | |
ed957684 | 4027 | int i, totiocbsize = 0; |
dea3101e | 4028 | struct lpfc_sli *psli = &phba->sli; |
4029 | struct lpfc_sli_ring *pring; | |
4030 | ||
4031 | psli->num_rings = MAX_CONFIGURED_RINGS; | |
4032 | psli->sli_flag = 0; | |
4033 | psli->fcp_ring = LPFC_FCP_RING; | |
4034 | psli->next_ring = LPFC_FCP_NEXT_RING; | |
a4bc3379 | 4035 | psli->extra_ring = LPFC_EXTRA_RING; |
dea3101e | 4036 | |
604a3e30 JB |
4037 | psli->iocbq_lookup = NULL; |
4038 | psli->iocbq_lookup_len = 0; | |
4039 | psli->last_iotag = 0; | |
4040 | ||
dea3101e | 4041 | for (i = 0; i < psli->num_rings; i++) { |
4042 | pring = &psli->ring[i]; | |
4043 | switch (i) { | |
4044 | case LPFC_FCP_RING: /* ring 0 - FCP */ | |
4045 | /* numCiocb and numRiocb are used in config_port */ | |
4046 | pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES; | |
4047 | pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES; | |
4048 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
4049 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
4050 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
4051 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
ed957684 | 4052 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
4053 | SLI3_IOCB_CMD_SIZE : |
4054 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 4055 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
4056 | SLI3_IOCB_RSP_SIZE : |
4057 | SLI2_IOCB_RSP_SIZE; | |
dea3101e | 4058 | pring->iotag_ctr = 0; |
4059 | pring->iotag_max = | |
92d7f7b0 | 4060 | (phba->cfg_hba_queue_depth * 2); |
dea3101e | 4061 | pring->fast_iotag = pring->iotag_max; |
4062 | pring->num_mask = 0; | |
4063 | break; | |
a4bc3379 | 4064 | case LPFC_EXTRA_RING: /* ring 1 - EXTRA */ |
dea3101e | 4065 | /* numCiocb and numRiocb are used in config_port */ |
4066 | pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES; | |
4067 | pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES; | |
ed957684 | 4068 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
4069 | SLI3_IOCB_CMD_SIZE : |
4070 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 4071 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
4072 | SLI3_IOCB_RSP_SIZE : |
4073 | SLI2_IOCB_RSP_SIZE; | |
2e0fef85 | 4074 | pring->iotag_max = phba->cfg_hba_queue_depth; |
dea3101e | 4075 | pring->num_mask = 0; |
4076 | break; | |
4077 | case LPFC_ELS_RING: /* ring 2 - ELS / CT */ | |
4078 | /* numCiocb and numRiocb are used in config_port */ | |
4079 | pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES; | |
4080 | pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES; | |
ed957684 | 4081 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
4082 | SLI3_IOCB_CMD_SIZE : |
4083 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 4084 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
4085 | SLI3_IOCB_RSP_SIZE : |
4086 | SLI2_IOCB_RSP_SIZE; | |
dea3101e | 4087 | pring->fast_iotag = 0; |
4088 | pring->iotag_ctr = 0; | |
4089 | pring->iotag_max = 4096; | |
57127f15 JS |
4090 | pring->lpfc_sli_rcv_async_status = |
4091 | lpfc_sli_async_event_handler; | |
dea3101e | 4092 | pring->num_mask = 4; |
4093 | pring->prt[0].profile = 0; /* Mask 0 */ | |
4094 | pring->prt[0].rctl = FC_ELS_REQ; | |
4095 | pring->prt[0].type = FC_ELS_DATA; | |
4096 | pring->prt[0].lpfc_sli_rcv_unsol_event = | |
92d7f7b0 | 4097 | lpfc_els_unsol_event; |
dea3101e | 4098 | pring->prt[1].profile = 0; /* Mask 1 */ |
4099 | pring->prt[1].rctl = FC_ELS_RSP; | |
4100 | pring->prt[1].type = FC_ELS_DATA; | |
4101 | pring->prt[1].lpfc_sli_rcv_unsol_event = | |
92d7f7b0 | 4102 | lpfc_els_unsol_event; |
dea3101e | 4103 | pring->prt[2].profile = 0; /* Mask 2 */ |
4104 | /* NameServer Inquiry */ | |
4105 | pring->prt[2].rctl = FC_UNSOL_CTL; | |
4106 | /* NameServer */ | |
4107 | pring->prt[2].type = FC_COMMON_TRANSPORT_ULP; | |
4108 | pring->prt[2].lpfc_sli_rcv_unsol_event = | |
92d7f7b0 | 4109 | lpfc_ct_unsol_event; |
dea3101e | 4110 | pring->prt[3].profile = 0; /* Mask 3 */ |
4111 | /* NameServer response */ | |
4112 | pring->prt[3].rctl = FC_SOL_CTL; | |
4113 | /* NameServer */ | |
4114 | pring->prt[3].type = FC_COMMON_TRANSPORT_ULP; | |
4115 | pring->prt[3].lpfc_sli_rcv_unsol_event = | |
92d7f7b0 | 4116 | lpfc_ct_unsol_event; |
dea3101e | 4117 | break; |
4118 | } | |
ed957684 | 4119 | totiocbsize += (pring->numCiocb * pring->sizeCiocb) + |
92d7f7b0 | 4120 | (pring->numRiocb * pring->sizeRiocb); |
dea3101e | 4121 | } |
ed957684 | 4122 | if (totiocbsize > MAX_SLIM_IOCB_SIZE) { |
dea3101e | 4123 | /* Too many cmd / rsp ring entries in SLI2 SLIM */ |
e8b62011 JS |
4124 | printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in " |
4125 | "SLI2 SLIM Data: x%x x%lx\n", | |
4126 | phba->brd_no, totiocbsize, | |
4127 | (unsigned long) MAX_SLIM_IOCB_SIZE); | |
dea3101e | 4128 | } |
cf5bf97e JW |
4129 | if (phba->cfg_multi_ring_support == 2) |
4130 | lpfc_extra_ring_setup(phba); | |
dea3101e | 4131 | |
4132 | return 0; | |
4133 | } | |
4134 | ||
e59058c4 JS |
4135 | /** |
4136 | * lpfc_sli_queue_setup: Queue initialization function. | |
4137 | * @phba: Pointer to HBA context object. | |
4138 | * | |
4139 | * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each | |
4140 | * ring. This function also initializes ring indices of each ring. | |
4141 | * This function is called during the initialization of the SLI | |
4142 | * interface of an HBA. | |
4143 | * This function is called with no lock held and always returns | |
4144 | * 1. | |
4145 | **/ | |
dea3101e | 4146 | int |
2e0fef85 | 4147 | lpfc_sli_queue_setup(struct lpfc_hba *phba) |
dea3101e | 4148 | { |
4149 | struct lpfc_sli *psli; | |
4150 | struct lpfc_sli_ring *pring; | |
604a3e30 | 4151 | int i; |
dea3101e | 4152 | |
4153 | psli = &phba->sli; | |
2e0fef85 | 4154 | spin_lock_irq(&phba->hbalock); |
dea3101e | 4155 | INIT_LIST_HEAD(&psli->mboxq); |
92d7f7b0 | 4156 | INIT_LIST_HEAD(&psli->mboxq_cmpl); |
dea3101e | 4157 | /* Initialize list headers for txq and txcmplq as double linked lists */ |
4158 | for (i = 0; i < psli->num_rings; i++) { | |
4159 | pring = &psli->ring[i]; | |
4160 | pring->ringno = i; | |
4161 | pring->next_cmdidx = 0; | |
4162 | pring->local_getidx = 0; | |
4163 | pring->cmdidx = 0; | |
4164 | INIT_LIST_HEAD(&pring->txq); | |
4165 | INIT_LIST_HEAD(&pring->txcmplq); | |
4166 | INIT_LIST_HEAD(&pring->iocb_continueq); | |
9c2face6 | 4167 | INIT_LIST_HEAD(&pring->iocb_continue_saveq); |
dea3101e | 4168 | INIT_LIST_HEAD(&pring->postbufq); |
dea3101e | 4169 | } |
2e0fef85 JS |
4170 | spin_unlock_irq(&phba->hbalock); |
4171 | return 1; | |
dea3101e | 4172 | } |
4173 | ||
e59058c4 JS |
4174 | /** |
4175 | * lpfc_sli_host_down: Vport cleanup function. | |
4176 | * @vport: Pointer to virtual port object. | |
4177 | * | |
4178 | * lpfc_sli_host_down is called to clean up the resources | |
4179 | * associated with a vport before destroying virtual | |
4180 | * port data structures. | |
4181 | * This function does following operations: | |
4182 | * - Free discovery resources associated with this virtual | |
4183 | * port. | |
4184 | * - Free iocbs associated with this virtual port in | |
4185 | * the txq. | |
4186 | * - Send abort for all iocb commands associated with this | |
4187 | * vport in txcmplq. | |
4188 | * | |
4189 | * This function is called with no lock held and always returns 1. | |
4190 | **/ | |
92d7f7b0 JS |
4191 | int |
4192 | lpfc_sli_host_down(struct lpfc_vport *vport) | |
4193 | { | |
858c9f6c | 4194 | LIST_HEAD(completions); |
92d7f7b0 JS |
4195 | struct lpfc_hba *phba = vport->phba; |
4196 | struct lpfc_sli *psli = &phba->sli; | |
4197 | struct lpfc_sli_ring *pring; | |
4198 | struct lpfc_iocbq *iocb, *next_iocb; | |
92d7f7b0 JS |
4199 | int i; |
4200 | unsigned long flags = 0; | |
4201 | uint16_t prev_pring_flag; | |
4202 | ||
4203 | lpfc_cleanup_discovery_resources(vport); | |
4204 | ||
4205 | spin_lock_irqsave(&phba->hbalock, flags); | |
92d7f7b0 JS |
4206 | for (i = 0; i < psli->num_rings; i++) { |
4207 | pring = &psli->ring[i]; | |
4208 | prev_pring_flag = pring->flag; | |
5e9d9b82 JS |
4209 | /* Only slow rings */ |
4210 | if (pring->ringno == LPFC_ELS_RING) { | |
858c9f6c | 4211 | pring->flag |= LPFC_DEFERRED_RING_EVENT; |
5e9d9b82 JS |
4212 | /* Set the lpfc data pending flag */ |
4213 | set_bit(LPFC_DATA_READY, &phba->data_flags); | |
4214 | } | |
92d7f7b0 JS |
4215 | /* |
4216 | * Error everything on the txq since these iocbs have not been | |
4217 | * given to the FW yet. | |
4218 | */ | |
92d7f7b0 JS |
4219 | list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { |
4220 | if (iocb->vport != vport) | |
4221 | continue; | |
858c9f6c | 4222 | list_move_tail(&iocb->list, &completions); |
92d7f7b0 | 4223 | pring->txq_cnt--; |
92d7f7b0 JS |
4224 | } |
4225 | ||
4226 | /* Next issue ABTS for everything on the txcmplq */ | |
4227 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, | |
4228 | list) { | |
4229 | if (iocb->vport != vport) | |
4230 | continue; | |
4231 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); | |
4232 | } | |
4233 | ||
4234 | pring->flag = prev_pring_flag; | |
4235 | } | |
4236 | ||
4237 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
4238 | ||
858c9f6c JS |
4239 | while (!list_empty(&completions)) { |
4240 | list_remove_head(&completions, iocb, struct lpfc_iocbq, list); | |
4241 | ||
4242 | if (!iocb->iocb_cmpl) | |
4243 | lpfc_sli_release_iocbq(phba, iocb); | |
4244 | else { | |
4245 | iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT; | |
4246 | iocb->iocb.un.ulpWord[4] = IOERR_SLI_DOWN; | |
4247 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
4248 | } | |
4249 | } | |
92d7f7b0 JS |
4250 | return 1; |
4251 | } | |
4252 | ||
e59058c4 JS |
4253 | /** |
4254 | * lpfc_sli_hba_down: Resource cleanup function for the HBA. | |
4255 | * @phba: Pointer to HBA context object. | |
4256 | * | |
4257 | * This function cleans up all iocb, buffers, mailbox commands | |
4258 | * while shutting down the HBA. This function is called with no | |
4259 | * lock held and always returns 1. | |
4260 | * This function does the following to cleanup driver resources: | |
4261 | * - Free discovery resources for each virtual port | |
4262 | * - Cleanup any pending fabric iocbs | |
4263 | * - Iterate through the iocb txq and free each entry | |
4264 | * in the list. | |
4265 | * - Free up any buffer posted to the HBA | |
4266 | * - Free mailbox commands in the mailbox queue. | |
4267 | **/ | |
dea3101e | 4268 | int |
2e0fef85 | 4269 | lpfc_sli_hba_down(struct lpfc_hba *phba) |
dea3101e | 4270 | { |
2534ba75 | 4271 | LIST_HEAD(completions); |
2e0fef85 | 4272 | struct lpfc_sli *psli = &phba->sli; |
dea3101e | 4273 | struct lpfc_sli_ring *pring; |
0ff10d46 | 4274 | struct lpfc_dmabuf *buf_ptr; |
dea3101e | 4275 | LPFC_MBOXQ_t *pmb; |
2534ba75 JS |
4276 | struct lpfc_iocbq *iocb; |
4277 | IOCB_t *cmd = NULL; | |
dea3101e | 4278 | int i; |
4279 | unsigned long flags = 0; | |
4280 | ||
dea3101e | 4281 | lpfc_hba_down_prep(phba); |
4282 | ||
92d7f7b0 JS |
4283 | lpfc_fabric_abort_hba(phba); |
4284 | ||
2e0fef85 | 4285 | spin_lock_irqsave(&phba->hbalock, flags); |
dea3101e | 4286 | for (i = 0; i < psli->num_rings; i++) { |
4287 | pring = &psli->ring[i]; | |
5e9d9b82 JS |
4288 | /* Only slow rings */ |
4289 | if (pring->ringno == LPFC_ELS_RING) { | |
858c9f6c | 4290 | pring->flag |= LPFC_DEFERRED_RING_EVENT; |
5e9d9b82 JS |
4291 | /* Set the lpfc data pending flag */ |
4292 | set_bit(LPFC_DATA_READY, &phba->data_flags); | |
4293 | } | |
dea3101e | 4294 | |
4295 | /* | |
4296 | * Error everything on the txq since these iocbs have not been | |
4297 | * given to the FW yet. | |
4298 | */ | |
2534ba75 | 4299 | list_splice_init(&pring->txq, &completions); |
dea3101e | 4300 | pring->txq_cnt = 0; |
4301 | ||
2534ba75 | 4302 | } |
2e0fef85 | 4303 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e | 4304 | |
2534ba75 | 4305 | while (!list_empty(&completions)) { |
92d7f7b0 | 4306 | list_remove_head(&completions, iocb, struct lpfc_iocbq, list); |
2534ba75 | 4307 | cmd = &iocb->iocb; |
dea3101e | 4308 | |
2e0fef85 JS |
4309 | if (!iocb->iocb_cmpl) |
4310 | lpfc_sli_release_iocbq(phba, iocb); | |
4311 | else { | |
2534ba75 JS |
4312 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; |
4313 | cmd->un.ulpWord[4] = IOERR_SLI_DOWN; | |
4314 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
2e0fef85 | 4315 | } |
dea3101e | 4316 | } |
4317 | ||
0ff10d46 JS |
4318 | spin_lock_irqsave(&phba->hbalock, flags); |
4319 | list_splice_init(&phba->elsbuf, &completions); | |
4320 | phba->elsbuf_cnt = 0; | |
4321 | phba->elsbuf_prev_cnt = 0; | |
4322 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
4323 | ||
4324 | while (!list_empty(&completions)) { | |
4325 | list_remove_head(&completions, buf_ptr, | |
4326 | struct lpfc_dmabuf, list); | |
4327 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
4328 | kfree(buf_ptr); | |
4329 | } | |
4330 | ||
dea3101e | 4331 | /* Return any active mbox cmds */ |
4332 | del_timer_sync(&psli->mbox_tmo); | |
92d7f7b0 | 4333 | spin_lock_irqsave(&phba->hbalock, flags); |
2e0fef85 | 4334 | |
92d7f7b0 | 4335 | spin_lock(&phba->pport->work_port_lock); |
2e0fef85 | 4336 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; |
92d7f7b0 | 4337 | spin_unlock(&phba->pport->work_port_lock); |
2e0fef85 | 4338 | |
97eab634 JS |
4339 | /* Return any pending or completed mbox cmds */ |
4340 | list_splice_init(&phba->sli.mboxq, &completions); | |
92d7f7b0 JS |
4341 | if (psli->mbox_active) { |
4342 | list_add_tail(&psli->mbox_active->list, &completions); | |
2e0fef85 | 4343 | psli->mbox_active = NULL; |
2e0fef85 | 4344 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
dea3101e | 4345 | } |
92d7f7b0 | 4346 | list_splice_init(&phba->sli.mboxq_cmpl, &completions); |
92d7f7b0 JS |
4347 | spin_unlock_irqrestore(&phba->hbalock, flags); |
4348 | ||
4349 | while (!list_empty(&completions)) { | |
4350 | list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list); | |
dea3101e | 4351 | pmb->mb.mbxStatus = MBX_NOT_FINISHED; |
97eab634 | 4352 | if (pmb->mbox_cmpl) |
dea3101e | 4353 | pmb->mbox_cmpl(phba,pmb); |
dea3101e | 4354 | } |
dea3101e | 4355 | return 1; |
4356 | } | |
4357 | ||
e59058c4 JS |
4358 | /** |
4359 | * lpfc_sli_pcimem_bcopy: SLI memory copy function. | |
4360 | * @srcp: Source memory pointer. | |
4361 | * @destp: Destination memory pointer. | |
4362 | * @cnt: Number of words required to be copied. | |
4363 | * | |
4364 | * This function is used for copying data between driver memory | |
4365 | * and the SLI memory. This function also changes the endianness | |
4366 | * of each word if native endianness is different from SLI | |
4367 | * endianness. This function can be called with or without | |
4368 | * lock. | |
4369 | **/ | |
dea3101e | 4370 | void |
4371 | lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt) | |
4372 | { | |
4373 | uint32_t *src = srcp; | |
4374 | uint32_t *dest = destp; | |
4375 | uint32_t ldata; | |
4376 | int i; | |
4377 | ||
4378 | for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) { | |
4379 | ldata = *src; | |
4380 | ldata = le32_to_cpu(ldata); | |
4381 | *dest = ldata; | |
4382 | src++; | |
4383 | dest++; | |
4384 | } | |
4385 | } | |
4386 | ||
e59058c4 JS |
4387 | |
4388 | /** | |
4389 | * lpfc_sli_ringpostbuf_put: Function to add a buffer to postbufq. | |
4390 | * @phba: Pointer to HBA context object. | |
4391 | * @pring: Pointer to driver SLI ring object. | |
4392 | * @mp: Pointer to driver buffer object. | |
4393 | * | |
4394 | * This function is called with no lock held. | |
4395 | * It always return zero after adding the buffer to the postbufq | |
4396 | * buffer list. | |
4397 | **/ | |
dea3101e | 4398 | int |
2e0fef85 JS |
4399 | lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
4400 | struct lpfc_dmabuf *mp) | |
dea3101e | 4401 | { |
4402 | /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up | |
4403 | later */ | |
2e0fef85 | 4404 | spin_lock_irq(&phba->hbalock); |
dea3101e | 4405 | list_add_tail(&mp->list, &pring->postbufq); |
dea3101e | 4406 | pring->postbufq_cnt++; |
2e0fef85 | 4407 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 4408 | return 0; |
4409 | } | |
4410 | ||
e59058c4 JS |
4411 | /** |
4412 | * lpfc_sli_get_buffer_tag: Tag allocation function for a buffer posted | |
4413 | * using CMD_QUE_XRI64_CX iocb. | |
4414 | * @phba: Pointer to HBA context object. | |
4415 | * | |
4416 | * When HBQ is enabled, buffers are searched based on tags. This function | |
4417 | * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The | |
4418 | * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag | |
4419 | * does not conflict with tags of buffer posted for unsolicited events. | |
4420 | * The function returns the allocated tag. The function is called with | |
4421 | * no locks held. | |
4422 | **/ | |
76bb24ef JS |
4423 | uint32_t |
4424 | lpfc_sli_get_buffer_tag(struct lpfc_hba *phba) | |
4425 | { | |
4426 | spin_lock_irq(&phba->hbalock); | |
4427 | phba->buffer_tag_count++; | |
4428 | /* | |
4429 | * Always set the QUE_BUFTAG_BIT to distiguish between | |
4430 | * a tag assigned by HBQ. | |
4431 | */ | |
4432 | phba->buffer_tag_count |= QUE_BUFTAG_BIT; | |
4433 | spin_unlock_irq(&phba->hbalock); | |
4434 | return phba->buffer_tag_count; | |
4435 | } | |
4436 | ||
e59058c4 JS |
4437 | /** |
4438 | * lpfc_sli_ring_taggedbuf_get: Search HBQ buffer associated with | |
4439 | * posted using CMD_QUE_XRI64_CX iocb. | |
4440 | * @phba: Pointer to HBA context object. | |
4441 | * @pring: Pointer to driver SLI ring object. | |
4442 | * @tag: Buffer tag. | |
4443 | * | |
4444 | * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq | |
4445 | * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX | |
4446 | * iocb is posted to the response ring with the tag of the buffer. | |
4447 | * This function searches the pring->postbufq list using the tag | |
4448 | * to find buffer associated with CMD_IOCB_RET_XRI64_CX | |
4449 | * iocb. If the buffer is found then lpfc_dmabuf object of the | |
4450 | * buffer is returned to the caller else NULL is returned. | |
4451 | * This function is called with no lock held. | |
4452 | **/ | |
76bb24ef JS |
4453 | struct lpfc_dmabuf * |
4454 | lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
4455 | uint32_t tag) | |
4456 | { | |
4457 | struct lpfc_dmabuf *mp, *next_mp; | |
4458 | struct list_head *slp = &pring->postbufq; | |
4459 | ||
4460 | /* Search postbufq, from the begining, looking for a match on tag */ | |
4461 | spin_lock_irq(&phba->hbalock); | |
4462 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { | |
4463 | if (mp->buffer_tag == tag) { | |
4464 | list_del_init(&mp->list); | |
4465 | pring->postbufq_cnt--; | |
4466 | spin_unlock_irq(&phba->hbalock); | |
4467 | return mp; | |
4468 | } | |
4469 | } | |
4470 | ||
4471 | spin_unlock_irq(&phba->hbalock); | |
4472 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
d7c255b2 | 4473 | "0402 Cannot find virtual addr for buffer tag on " |
76bb24ef JS |
4474 | "ring %d Data x%lx x%p x%p x%x\n", |
4475 | pring->ringno, (unsigned long) tag, | |
4476 | slp->next, slp->prev, pring->postbufq_cnt); | |
4477 | ||
4478 | return NULL; | |
4479 | } | |
dea3101e | 4480 | |
e59058c4 JS |
4481 | /** |
4482 | * lpfc_sli_ringpostbuf_get: SLI2 buffer search function for | |
4483 | * unsolicited ct and els events. | |
4484 | * @phba: Pointer to HBA context object. | |
4485 | * @pring: Pointer to driver SLI ring object. | |
4486 | * @phys: DMA address of the buffer. | |
4487 | * | |
4488 | * This function searches the buffer list using the dma_address | |
4489 | * of unsolicited event to find the driver's lpfc_dmabuf object | |
4490 | * corresponding to the dma_address. The function returns the | |
4491 | * lpfc_dmabuf object if a buffer is found else it returns NULL. | |
4492 | * This function is called by the ct and els unsolicited event | |
4493 | * handlers to get the buffer associated with the unsolicited | |
4494 | * event. | |
4495 | * | |
4496 | * This function is called with no lock held. | |
4497 | **/ | |
dea3101e | 4498 | struct lpfc_dmabuf * |
4499 | lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
4500 | dma_addr_t phys) | |
4501 | { | |
4502 | struct lpfc_dmabuf *mp, *next_mp; | |
4503 | struct list_head *slp = &pring->postbufq; | |
4504 | ||
4505 | /* Search postbufq, from the begining, looking for a match on phys */ | |
2e0fef85 | 4506 | spin_lock_irq(&phba->hbalock); |
dea3101e | 4507 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { |
4508 | if (mp->phys == phys) { | |
4509 | list_del_init(&mp->list); | |
4510 | pring->postbufq_cnt--; | |
2e0fef85 | 4511 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 4512 | return mp; |
4513 | } | |
4514 | } | |
4515 | ||
2e0fef85 | 4516 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 4517 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 4518 | "0410 Cannot find virtual addr for mapped buf on " |
dea3101e | 4519 | "ring %d Data x%llx x%p x%p x%x\n", |
e8b62011 | 4520 | pring->ringno, (unsigned long long)phys, |
dea3101e | 4521 | slp->next, slp->prev, pring->postbufq_cnt); |
4522 | return NULL; | |
4523 | } | |
4524 | ||
e59058c4 JS |
4525 | /** |
4526 | * lpfc_sli_abort_els_cmpl: Completion handler for the els abort iocbs. | |
4527 | * @phba: Pointer to HBA context object. | |
4528 | * @cmdiocb: Pointer to driver command iocb object. | |
4529 | * @rspiocb: Pointer to driver response iocb object. | |
4530 | * | |
4531 | * This function is the completion handler for the abort iocbs for | |
4532 | * ELS commands. This function is called from the ELS ring event | |
4533 | * handler with no lock held. This function frees memory resources | |
4534 | * associated with the abort iocb. | |
4535 | **/ | |
dea3101e | 4536 | static void |
2e0fef85 JS |
4537 | lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
4538 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 4539 | { |
2e0fef85 | 4540 | IOCB_t *irsp = &rspiocb->iocb; |
2680eeaa | 4541 | uint16_t abort_iotag, abort_context; |
92d7f7b0 | 4542 | struct lpfc_iocbq *abort_iocb; |
2680eeaa JS |
4543 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
4544 | ||
4545 | abort_iocb = NULL; | |
2680eeaa JS |
4546 | |
4547 | if (irsp->ulpStatus) { | |
4548 | abort_context = cmdiocb->iocb.un.acxri.abortContextTag; | |
4549 | abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag; | |
4550 | ||
2e0fef85 | 4551 | spin_lock_irq(&phba->hbalock); |
2680eeaa JS |
4552 | if (abort_iotag != 0 && abort_iotag <= phba->sli.last_iotag) |
4553 | abort_iocb = phba->sli.iocbq_lookup[abort_iotag]; | |
4554 | ||
92d7f7b0 | 4555 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS | LOG_SLI, |
e8b62011 | 4556 | "0327 Cannot abort els iocb %p " |
92d7f7b0 JS |
4557 | "with tag %x context %x, abort status %x, " |
4558 | "abort code %x\n", | |
e8b62011 JS |
4559 | abort_iocb, abort_iotag, abort_context, |
4560 | irsp->ulpStatus, irsp->un.ulpWord[4]); | |
2680eeaa | 4561 | |
58da1ffb JS |
4562 | /* |
4563 | * If the iocb is not found in Firmware queue the iocb | |
4564 | * might have completed already. Do not free it again. | |
4565 | */ | |
9b379605 | 4566 | if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) { |
58da1ffb JS |
4567 | spin_unlock_irq(&phba->hbalock); |
4568 | lpfc_sli_release_iocbq(phba, cmdiocb); | |
4569 | return; | |
4570 | } | |
2680eeaa JS |
4571 | /* |
4572 | * make sure we have the right iocbq before taking it | |
4573 | * off the txcmplq and try to call completion routine. | |
4574 | */ | |
2e0fef85 JS |
4575 | if (!abort_iocb || |
4576 | abort_iocb->iocb.ulpContext != abort_context || | |
4577 | (abort_iocb->iocb_flag & LPFC_DRIVER_ABORTED) == 0) | |
4578 | spin_unlock_irq(&phba->hbalock); | |
4579 | else { | |
92d7f7b0 | 4580 | list_del_init(&abort_iocb->list); |
2680eeaa | 4581 | pring->txcmplq_cnt--; |
2e0fef85 | 4582 | spin_unlock_irq(&phba->hbalock); |
2680eeaa | 4583 | |
0ff10d46 JS |
4584 | /* Firmware could still be in progress of DMAing |
4585 | * payload, so don't free data buffer till after | |
4586 | * a hbeat. | |
4587 | */ | |
4588 | abort_iocb->iocb_flag |= LPFC_DELAY_MEM_FREE; | |
4589 | ||
92d7f7b0 JS |
4590 | abort_iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED; |
4591 | abort_iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT; | |
4592 | abort_iocb->iocb.un.ulpWord[4] = IOERR_SLI_ABORTED; | |
4593 | (abort_iocb->iocb_cmpl)(phba, abort_iocb, abort_iocb); | |
2680eeaa JS |
4594 | } |
4595 | } | |
4596 | ||
604a3e30 | 4597 | lpfc_sli_release_iocbq(phba, cmdiocb); |
dea3101e | 4598 | return; |
4599 | } | |
4600 | ||
e59058c4 JS |
4601 | /** |
4602 | * lpfc_ignore_els_cmpl: Completion handler for aborted ELS command. | |
4603 | * @phba: Pointer to HBA context object. | |
4604 | * @cmdiocb: Pointer to driver command iocb object. | |
4605 | * @rspiocb: Pointer to driver response iocb object. | |
4606 | * | |
4607 | * The function is called from SLI ring event handler with no | |
4608 | * lock held. This function is the completion handler for ELS commands | |
4609 | * which are aborted. The function frees memory resources used for | |
4610 | * the aborted ELS commands. | |
4611 | **/ | |
92d7f7b0 JS |
4612 | static void |
4613 | lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
4614 | struct lpfc_iocbq *rspiocb) | |
4615 | { | |
4616 | IOCB_t *irsp = &rspiocb->iocb; | |
4617 | ||
4618 | /* ELS cmd tag <ulpIoTag> completes */ | |
4619 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
d7c255b2 | 4620 | "0139 Ignoring ELS cmd tag x%x completion Data: " |
92d7f7b0 | 4621 | "x%x x%x x%x\n", |
e8b62011 | 4622 | irsp->ulpIoTag, irsp->ulpStatus, |
92d7f7b0 | 4623 | irsp->un.ulpWord[4], irsp->ulpTimeout); |
858c9f6c JS |
4624 | if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) |
4625 | lpfc_ct_free_iocb(phba, cmdiocb); | |
4626 | else | |
4627 | lpfc_els_free_iocb(phba, cmdiocb); | |
92d7f7b0 JS |
4628 | return; |
4629 | } | |
4630 | ||
e59058c4 JS |
4631 | /** |
4632 | * lpfc_sli_issue_abort_iotag: Abort function for a command iocb. | |
4633 | * @phba: Pointer to HBA context object. | |
4634 | * @pring: Pointer to driver SLI ring object. | |
4635 | * @cmdiocb: Pointer to driver command iocb object. | |
4636 | * | |
4637 | * This function issues an abort iocb for the provided command | |
4638 | * iocb. This function is called with hbalock held. | |
4639 | * The function returns 0 when it fails due to memory allocation | |
4640 | * failure or when the command iocb is an abort request. | |
4641 | **/ | |
dea3101e | 4642 | int |
2e0fef85 JS |
4643 | lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
4644 | struct lpfc_iocbq *cmdiocb) | |
dea3101e | 4645 | { |
2e0fef85 | 4646 | struct lpfc_vport *vport = cmdiocb->vport; |
0bd4ca25 | 4647 | struct lpfc_iocbq *abtsiocbp; |
dea3101e | 4648 | IOCB_t *icmd = NULL; |
4649 | IOCB_t *iabt = NULL; | |
07951076 JS |
4650 | int retval = IOCB_ERROR; |
4651 | ||
92d7f7b0 JS |
4652 | /* |
4653 | * There are certain command types we don't want to abort. And we | |
4654 | * don't want to abort commands that are already in the process of | |
4655 | * being aborted. | |
07951076 JS |
4656 | */ |
4657 | icmd = &cmdiocb->iocb; | |
2e0fef85 | 4658 | if (icmd->ulpCommand == CMD_ABORT_XRI_CN || |
92d7f7b0 JS |
4659 | icmd->ulpCommand == CMD_CLOSE_XRI_CN || |
4660 | (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0) | |
07951076 JS |
4661 | return 0; |
4662 | ||
858c9f6c JS |
4663 | /* If we're unloading, don't abort iocb on the ELS ring, but change the |
4664 | * callback so that nothing happens when it finishes. | |
07951076 | 4665 | */ |
858c9f6c JS |
4666 | if ((vport->load_flag & FC_UNLOADING) && |
4667 | (pring->ringno == LPFC_ELS_RING)) { | |
92d7f7b0 JS |
4668 | if (cmdiocb->iocb_flag & LPFC_IO_FABRIC) |
4669 | cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl; | |
4670 | else | |
4671 | cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl; | |
07951076 | 4672 | goto abort_iotag_exit; |
92d7f7b0 | 4673 | } |
dea3101e | 4674 | |
4675 | /* issue ABTS for this IOCB based on iotag */ | |
92d7f7b0 | 4676 | abtsiocbp = __lpfc_sli_get_iocbq(phba); |
dea3101e | 4677 | if (abtsiocbp == NULL) |
4678 | return 0; | |
dea3101e | 4679 | |
07951076 JS |
4680 | /* This signals the response to set the correct status |
4681 | * before calling the completion handler. | |
4682 | */ | |
4683 | cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED; | |
4684 | ||
dea3101e | 4685 | iabt = &abtsiocbp->iocb; |
07951076 JS |
4686 | iabt->un.acxri.abortType = ABORT_TYPE_ABTS; |
4687 | iabt->un.acxri.abortContextTag = icmd->ulpContext; | |
4688 | iabt->un.acxri.abortIoTag = icmd->ulpIoTag; | |
4689 | iabt->ulpLe = 1; | |
4690 | iabt->ulpClass = icmd->ulpClass; | |
dea3101e | 4691 | |
2e0fef85 | 4692 | if (phba->link_state >= LPFC_LINK_UP) |
07951076 JS |
4693 | iabt->ulpCommand = CMD_ABORT_XRI_CN; |
4694 | else | |
4695 | iabt->ulpCommand = CMD_CLOSE_XRI_CN; | |
dea3101e | 4696 | |
07951076 | 4697 | abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl; |
5b8bd0c9 | 4698 | |
e8b62011 JS |
4699 | lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, |
4700 | "0339 Abort xri x%x, original iotag x%x, " | |
4701 | "abort cmd iotag x%x\n", | |
4702 | iabt->un.acxri.abortContextTag, | |
4703 | iabt->un.acxri.abortIoTag, abtsiocbp->iotag); | |
92d7f7b0 | 4704 | retval = __lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0); |
dea3101e | 4705 | |
d7c255b2 JS |
4706 | if (retval) |
4707 | __lpfc_sli_release_iocbq(phba, abtsiocbp); | |
07951076 | 4708 | abort_iotag_exit: |
2e0fef85 JS |
4709 | /* |
4710 | * Caller to this routine should check for IOCB_ERROR | |
4711 | * and handle it properly. This routine no longer removes | |
4712 | * iocb off txcmplq and call compl in case of IOCB_ERROR. | |
07951076 | 4713 | */ |
2e0fef85 | 4714 | return retval; |
dea3101e | 4715 | } |
4716 | ||
e59058c4 JS |
4717 | /** |
4718 | * lpfc_sli_validate_fcp_iocb: Filtering function, used to find commands | |
4719 | * associated with a vport/SCSI target/lun. | |
4720 | * @iocbq: Pointer to driver iocb object. | |
4721 | * @vport: Pointer to driver virtual port object. | |
4722 | * @tgt_id: SCSI ID of the target. | |
4723 | * @lun_id: LUN ID of the scsi device. | |
4724 | * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST | |
4725 | * | |
4726 | * This function acts as iocb filter for functions which abort or count | |
4727 | * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return | |
4728 | * 0 if the filtering criteria is met for the given iocb and will return | |
4729 | * 1 if the filtering criteria is not met. | |
4730 | * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the | |
4731 | * given iocb is for the SCSI device specified by vport, tgt_id and | |
4732 | * lun_id parameter. | |
4733 | * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the | |
4734 | * given iocb is for the SCSI target specified by vport and tgt_id | |
4735 | * parameters. | |
4736 | * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the | |
4737 | * given iocb is for the SCSI host associated with the given vport. | |
4738 | * This function is called with no locks held. | |
4739 | **/ | |
dea3101e | 4740 | static int |
51ef4c26 JS |
4741 | lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport, |
4742 | uint16_t tgt_id, uint64_t lun_id, | |
0bd4ca25 | 4743 | lpfc_ctx_cmd ctx_cmd) |
dea3101e | 4744 | { |
0bd4ca25 | 4745 | struct lpfc_scsi_buf *lpfc_cmd; |
dea3101e | 4746 | int rc = 1; |
4747 | ||
0bd4ca25 JSEC |
4748 | if (!(iocbq->iocb_flag & LPFC_IO_FCP)) |
4749 | return rc; | |
4750 | ||
51ef4c26 JS |
4751 | if (iocbq->vport != vport) |
4752 | return rc; | |
4753 | ||
0bd4ca25 | 4754 | lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq); |
0bd4ca25 | 4755 | |
495a714c | 4756 | if (lpfc_cmd->pCmd == NULL) |
dea3101e | 4757 | return rc; |
4758 | ||
4759 | switch (ctx_cmd) { | |
4760 | case LPFC_CTX_LUN: | |
495a714c JS |
4761 | if ((lpfc_cmd->rdata->pnode) && |
4762 | (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) && | |
4763 | (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id)) | |
dea3101e | 4764 | rc = 0; |
4765 | break; | |
4766 | case LPFC_CTX_TGT: | |
495a714c JS |
4767 | if ((lpfc_cmd->rdata->pnode) && |
4768 | (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id)) | |
dea3101e | 4769 | rc = 0; |
4770 | break; | |
dea3101e | 4771 | case LPFC_CTX_HOST: |
4772 | rc = 0; | |
4773 | break; | |
4774 | default: | |
4775 | printk(KERN_ERR "%s: Unknown context cmd type, value %d\n", | |
cadbd4a5 | 4776 | __func__, ctx_cmd); |
dea3101e | 4777 | break; |
4778 | } | |
4779 | ||
4780 | return rc; | |
4781 | } | |
4782 | ||
e59058c4 JS |
4783 | /** |
4784 | * lpfc_sli_sum_iocb: Function to count the number of FCP iocbs pending. | |
4785 | * @vport: Pointer to virtual port. | |
4786 | * @tgt_id: SCSI ID of the target. | |
4787 | * @lun_id: LUN ID of the scsi device. | |
4788 | * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST. | |
4789 | * | |
4790 | * This function returns number of FCP commands pending for the vport. | |
4791 | * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP | |
4792 | * commands pending on the vport associated with SCSI device specified | |
4793 | * by tgt_id and lun_id parameters. | |
4794 | * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP | |
4795 | * commands pending on the vport associated with SCSI target specified | |
4796 | * by tgt_id parameter. | |
4797 | * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP | |
4798 | * commands pending on the vport. | |
4799 | * This function returns the number of iocbs which satisfy the filter. | |
4800 | * This function is called without any lock held. | |
4801 | **/ | |
dea3101e | 4802 | int |
51ef4c26 JS |
4803 | lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id, |
4804 | lpfc_ctx_cmd ctx_cmd) | |
dea3101e | 4805 | { |
51ef4c26 | 4806 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 JSEC |
4807 | struct lpfc_iocbq *iocbq; |
4808 | int sum, i; | |
dea3101e | 4809 | |
0bd4ca25 JSEC |
4810 | for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) { |
4811 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 4812 | |
51ef4c26 JS |
4813 | if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id, |
4814 | ctx_cmd) == 0) | |
0bd4ca25 | 4815 | sum++; |
dea3101e | 4816 | } |
0bd4ca25 | 4817 | |
dea3101e | 4818 | return sum; |
4819 | } | |
4820 | ||
e59058c4 JS |
4821 | /** |
4822 | * lpfc_sli_abort_fcp_cmpl: Completion handler function for an aborted | |
4823 | * FCP iocb. | |
4824 | * @phba: Pointer to HBA context object | |
4825 | * @cmdiocb: Pointer to command iocb object. | |
4826 | * @rspiocb: Pointer to response iocb object. | |
4827 | * | |
4828 | * This function is called when an aborted FCP iocb completes. This | |
4829 | * function is called by the ring event handler with no lock held. | |
4830 | * This function frees the iocb. | |
4831 | **/ | |
5eb95af0 | 4832 | void |
2e0fef85 JS |
4833 | lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
4834 | struct lpfc_iocbq *rspiocb) | |
5eb95af0 | 4835 | { |
604a3e30 | 4836 | lpfc_sli_release_iocbq(phba, cmdiocb); |
5eb95af0 JSEC |
4837 | return; |
4838 | } | |
4839 | ||
e59058c4 JS |
4840 | /** |
4841 | * lpfc_sli_abort_iocb: This function issue abort for all SCSI commands | |
4842 | * pending on a SCSI host(vport)/target/lun. | |
4843 | * @vport: Pointer to virtual port. | |
4844 | * @pring: Pointer to driver SLI ring object. | |
4845 | * @tgt_id: SCSI ID of the target. | |
4846 | * @lun_id: LUN ID of the scsi device. | |
4847 | * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST. | |
4848 | * | |
4849 | * This function sends an abort command for every SCSI command | |
4850 | * associated with the given virtual port pending on the ring | |
4851 | * filtered by lpfc_sli_validate_fcp_iocb function. | |
4852 | * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the | |
4853 | * FCP iocbs associated with lun specified by tgt_id and lun_id | |
4854 | * parameters | |
4855 | * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the | |
4856 | * FCP iocbs associated with SCSI target specified by tgt_id parameter. | |
4857 | * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all | |
4858 | * FCP iocbs associated with virtual port. | |
4859 | * This function returns number of iocbs it failed to abort. | |
4860 | * This function is called with no locks held. | |
4861 | **/ | |
dea3101e | 4862 | int |
51ef4c26 JS |
4863 | lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring, |
4864 | uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd) | |
dea3101e | 4865 | { |
51ef4c26 | 4866 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 JSEC |
4867 | struct lpfc_iocbq *iocbq; |
4868 | struct lpfc_iocbq *abtsiocb; | |
dea3101e | 4869 | IOCB_t *cmd = NULL; |
dea3101e | 4870 | int errcnt = 0, ret_val = 0; |
0bd4ca25 | 4871 | int i; |
dea3101e | 4872 | |
0bd4ca25 JSEC |
4873 | for (i = 1; i <= phba->sli.last_iotag; i++) { |
4874 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 4875 | |
51ef4c26 | 4876 | if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id, |
2e0fef85 | 4877 | abort_cmd) != 0) |
dea3101e | 4878 | continue; |
4879 | ||
4880 | /* issue ABTS for this IOCB based on iotag */ | |
0bd4ca25 | 4881 | abtsiocb = lpfc_sli_get_iocbq(phba); |
dea3101e | 4882 | if (abtsiocb == NULL) { |
4883 | errcnt++; | |
4884 | continue; | |
4885 | } | |
dea3101e | 4886 | |
0bd4ca25 | 4887 | cmd = &iocbq->iocb; |
dea3101e | 4888 | abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS; |
4889 | abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext; | |
4890 | abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag; | |
4891 | abtsiocb->iocb.ulpLe = 1; | |
4892 | abtsiocb->iocb.ulpClass = cmd->ulpClass; | |
2e0fef85 | 4893 | abtsiocb->vport = phba->pport; |
dea3101e | 4894 | |
2e0fef85 | 4895 | if (lpfc_is_link_up(phba)) |
dea3101e | 4896 | abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN; |
4897 | else | |
4898 | abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN; | |
4899 | ||
5eb95af0 JSEC |
4900 | /* Setup callback routine and issue the command. */ |
4901 | abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl; | |
dea3101e | 4902 | ret_val = lpfc_sli_issue_iocb(phba, pring, abtsiocb, 0); |
4903 | if (ret_val == IOCB_ERROR) { | |
604a3e30 | 4904 | lpfc_sli_release_iocbq(phba, abtsiocb); |
dea3101e | 4905 | errcnt++; |
4906 | continue; | |
4907 | } | |
4908 | } | |
4909 | ||
4910 | return errcnt; | |
4911 | } | |
4912 | ||
e59058c4 JS |
4913 | /** |
4914 | * lpfc_sli_wake_iocb_wait: iocb completion handler for iocb issued using | |
4915 | * lpfc_sli_issue_iocb_wait. | |
4916 | * @phba: Pointer to HBA context object. | |
4917 | * @cmdiocbq: Pointer to command iocb. | |
4918 | * @rspiocbq: Pointer to response iocb. | |
4919 | * | |
4920 | * This function is the completion handler for iocbs issued using | |
4921 | * lpfc_sli_issue_iocb_wait function. This function is called by the | |
4922 | * ring event handler function without any lock held. This function | |
4923 | * can be called from both worker thread context and interrupt | |
4924 | * context. This function also can be called from other thread which | |
4925 | * cleans up the SLI layer objects. | |
4926 | * This function copy the contents of the response iocb to the | |
4927 | * response iocb memory object provided by the caller of | |
4928 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
4929 | * sleeps for the iocb completion. | |
4930 | **/ | |
68876920 JSEC |
4931 | static void |
4932 | lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba, | |
4933 | struct lpfc_iocbq *cmdiocbq, | |
4934 | struct lpfc_iocbq *rspiocbq) | |
dea3101e | 4935 | { |
68876920 JSEC |
4936 | wait_queue_head_t *pdone_q; |
4937 | unsigned long iflags; | |
dea3101e | 4938 | |
2e0fef85 | 4939 | spin_lock_irqsave(&phba->hbalock, iflags); |
68876920 JSEC |
4940 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; |
4941 | if (cmdiocbq->context2 && rspiocbq) | |
4942 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, | |
4943 | &rspiocbq->iocb, sizeof(IOCB_t)); | |
4944 | ||
4945 | pdone_q = cmdiocbq->context_un.wait_queue; | |
68876920 JSEC |
4946 | if (pdone_q) |
4947 | wake_up(pdone_q); | |
858c9f6c | 4948 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
dea3101e | 4949 | return; |
4950 | } | |
4951 | ||
e59058c4 JS |
4952 | /** |
4953 | * lpfc_sli_issue_iocb_wait: Synchronous function to issue iocb commands. | |
4954 | * @phba: Pointer to HBA context object.. | |
4955 | * @pring: Pointer to sli ring. | |
4956 | * @piocb: Pointer to command iocb. | |
4957 | * @prspiocbq: Pointer to response iocb. | |
4958 | * @timeout: Timeout in number of seconds. | |
4959 | * | |
4960 | * This function issues the iocb to firmware and waits for the | |
4961 | * iocb to complete. If the iocb command is not | |
4962 | * completed within timeout seconds, it returns IOCB_TIMEDOUT. | |
4963 | * Caller should not free the iocb resources if this function | |
4964 | * returns IOCB_TIMEDOUT. | |
4965 | * The function waits for the iocb completion using an | |
4966 | * non-interruptible wait. | |
4967 | * This function will sleep while waiting for iocb completion. | |
4968 | * So, this function should not be called from any context which | |
4969 | * does not allow sleeping. Due to the same reason, this function | |
4970 | * cannot be called with interrupt disabled. | |
4971 | * This function assumes that the iocb completions occur while | |
4972 | * this function sleep. So, this function cannot be called from | |
4973 | * the thread which process iocb completion for this ring. | |
4974 | * This function clears the iocb_flag of the iocb object before | |
4975 | * issuing the iocb and the iocb completion handler sets this | |
4976 | * flag and wakes this thread when the iocb completes. | |
4977 | * The contents of the response iocb will be copied to prspiocbq | |
4978 | * by the completion handler when the command completes. | |
4979 | * This function returns IOCB_SUCCESS when success. | |
4980 | * This function is called with no lock held. | |
4981 | **/ | |
dea3101e | 4982 | int |
2e0fef85 JS |
4983 | lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba, |
4984 | struct lpfc_sli_ring *pring, | |
4985 | struct lpfc_iocbq *piocb, | |
4986 | struct lpfc_iocbq *prspiocbq, | |
68876920 | 4987 | uint32_t timeout) |
dea3101e | 4988 | { |
7259f0d0 | 4989 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q); |
68876920 JSEC |
4990 | long timeleft, timeout_req = 0; |
4991 | int retval = IOCB_SUCCESS; | |
875fbdfe | 4992 | uint32_t creg_val; |
dea3101e | 4993 | |
4994 | /* | |
68876920 JSEC |
4995 | * If the caller has provided a response iocbq buffer, then context2 |
4996 | * is NULL or its an error. | |
dea3101e | 4997 | */ |
68876920 JSEC |
4998 | if (prspiocbq) { |
4999 | if (piocb->context2) | |
5000 | return IOCB_ERROR; | |
5001 | piocb->context2 = prspiocbq; | |
dea3101e | 5002 | } |
5003 | ||
68876920 JSEC |
5004 | piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait; |
5005 | piocb->context_un.wait_queue = &done_q; | |
5006 | piocb->iocb_flag &= ~LPFC_IO_WAKE; | |
dea3101e | 5007 | |
875fbdfe JSEC |
5008 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
5009 | creg_val = readl(phba->HCregaddr); | |
5010 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); | |
5011 | writel(creg_val, phba->HCregaddr); | |
5012 | readl(phba->HCregaddr); /* flush */ | |
5013 | } | |
5014 | ||
68876920 JSEC |
5015 | retval = lpfc_sli_issue_iocb(phba, pring, piocb, 0); |
5016 | if (retval == IOCB_SUCCESS) { | |
5017 | timeout_req = timeout * HZ; | |
68876920 JSEC |
5018 | timeleft = wait_event_timeout(done_q, |
5019 | piocb->iocb_flag & LPFC_IO_WAKE, | |
5020 | timeout_req); | |
dea3101e | 5021 | |
7054a606 JS |
5022 | if (piocb->iocb_flag & LPFC_IO_WAKE) { |
5023 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 5024 | "0331 IOCB wake signaled\n"); |
7054a606 | 5025 | } else if (timeleft == 0) { |
68876920 | 5026 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 JS |
5027 | "0338 IOCB wait timeout error - no " |
5028 | "wake response Data x%x\n", timeout); | |
68876920 | 5029 | retval = IOCB_TIMEDOUT; |
7054a606 | 5030 | } else { |
68876920 | 5031 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 JS |
5032 | "0330 IOCB wake NOT set, " |
5033 | "Data x%x x%lx\n", | |
68876920 JSEC |
5034 | timeout, (timeleft / jiffies)); |
5035 | retval = IOCB_TIMEDOUT; | |
dea3101e | 5036 | } |
68876920 JSEC |
5037 | } else { |
5038 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
d7c255b2 | 5039 | "0332 IOCB wait issue failed, Data x%x\n", |
e8b62011 | 5040 | retval); |
68876920 | 5041 | retval = IOCB_ERROR; |
dea3101e | 5042 | } |
5043 | ||
875fbdfe JSEC |
5044 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
5045 | creg_val = readl(phba->HCregaddr); | |
5046 | creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); | |
5047 | writel(creg_val, phba->HCregaddr); | |
5048 | readl(phba->HCregaddr); /* flush */ | |
5049 | } | |
5050 | ||
68876920 JSEC |
5051 | if (prspiocbq) |
5052 | piocb->context2 = NULL; | |
5053 | ||
5054 | piocb->context_un.wait_queue = NULL; | |
5055 | piocb->iocb_cmpl = NULL; | |
dea3101e | 5056 | return retval; |
5057 | } | |
68876920 | 5058 | |
e59058c4 JS |
5059 | /** |
5060 | * lpfc_sli_issue_mbox_wait: Synchronous function to issue mailbox. | |
5061 | * @phba: Pointer to HBA context object. | |
5062 | * @pmboxq: Pointer to driver mailbox object. | |
5063 | * @timeout: Timeout in number of seconds. | |
5064 | * | |
5065 | * This function issues the mailbox to firmware and waits for the | |
5066 | * mailbox command to complete. If the mailbox command is not | |
5067 | * completed within timeout seconds, it returns MBX_TIMEOUT. | |
5068 | * The function waits for the mailbox completion using an | |
5069 | * interruptible wait. If the thread is woken up due to a | |
5070 | * signal, MBX_TIMEOUT error is returned to the caller. Caller | |
5071 | * should not free the mailbox resources, if this function returns | |
5072 | * MBX_TIMEOUT. | |
5073 | * This function will sleep while waiting for mailbox completion. | |
5074 | * So, this function should not be called from any context which | |
5075 | * does not allow sleeping. Due to the same reason, this function | |
5076 | * cannot be called with interrupt disabled. | |
5077 | * This function assumes that the mailbox completion occurs while | |
5078 | * this function sleep. So, this function cannot be called from | |
5079 | * the worker thread which processes mailbox completion. | |
5080 | * This function is called in the context of HBA management | |
5081 | * applications. | |
5082 | * This function returns MBX_SUCCESS when successful. | |
5083 | * This function is called with no lock held. | |
5084 | **/ | |
dea3101e | 5085 | int |
2e0fef85 | 5086 | lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq, |
dea3101e | 5087 | uint32_t timeout) |
5088 | { | |
7259f0d0 | 5089 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q); |
dea3101e | 5090 | int retval; |
858c9f6c | 5091 | unsigned long flag; |
dea3101e | 5092 | |
5093 | /* The caller must leave context1 empty. */ | |
98c9ea5c | 5094 | if (pmboxq->context1) |
2e0fef85 | 5095 | return MBX_NOT_FINISHED; |
dea3101e | 5096 | |
495a714c | 5097 | pmboxq->mbox_flag &= ~LPFC_MBX_WAKE; |
dea3101e | 5098 | /* setup wake call as IOCB callback */ |
5099 | pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait; | |
5100 | /* setup context field to pass wait_queue pointer to wake function */ | |
5101 | pmboxq->context1 = &done_q; | |
5102 | ||
dea3101e | 5103 | /* now issue the command */ |
5104 | retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); | |
5105 | ||
5106 | if (retval == MBX_BUSY || retval == MBX_SUCCESS) { | |
7054a606 JS |
5107 | wait_event_interruptible_timeout(done_q, |
5108 | pmboxq->mbox_flag & LPFC_MBX_WAKE, | |
5109 | timeout * HZ); | |
5110 | ||
858c9f6c | 5111 | spin_lock_irqsave(&phba->hbalock, flag); |
dea3101e | 5112 | pmboxq->context1 = NULL; |
7054a606 JS |
5113 | /* |
5114 | * if LPFC_MBX_WAKE flag is set the mailbox is completed | |
5115 | * else do not free the resources. | |
5116 | */ | |
5117 | if (pmboxq->mbox_flag & LPFC_MBX_WAKE) | |
dea3101e | 5118 | retval = MBX_SUCCESS; |
858c9f6c | 5119 | else { |
7054a606 | 5120 | retval = MBX_TIMEOUT; |
858c9f6c JS |
5121 | pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
5122 | } | |
5123 | spin_unlock_irqrestore(&phba->hbalock, flag); | |
dea3101e | 5124 | } |
5125 | ||
dea3101e | 5126 | return retval; |
5127 | } | |
5128 | ||
e59058c4 JS |
5129 | /** |
5130 | * lpfc_sli_flush_mbox_queue: mailbox queue cleanup function. | |
5131 | * @phba: Pointer to HBA context. | |
5132 | * | |
5133 | * This function is called to cleanup any pending mailbox | |
5134 | * objects in the driver queue before bringing the HBA offline. | |
5135 | * This function is called while resetting the HBA. | |
5136 | * The function is called without any lock held. The function | |
5137 | * takes hbalock to update SLI data structure. | |
5138 | * This function returns 1 when there is an active mailbox | |
5139 | * command pending else returns 0. | |
5140 | **/ | |
b4c02652 JS |
5141 | int |
5142 | lpfc_sli_flush_mbox_queue(struct lpfc_hba * phba) | |
5143 | { | |
2e0fef85 | 5144 | struct lpfc_vport *vport = phba->pport; |
b4c02652 | 5145 | int i = 0; |
ed957684 | 5146 | uint32_t ha_copy; |
b4c02652 | 5147 | |
2e0fef85 | 5148 | while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE && !vport->stopped) { |
b4c02652 JS |
5149 | if (i++ > LPFC_MBOX_TMO * 1000) |
5150 | return 1; | |
5151 | ||
ed957684 JS |
5152 | /* |
5153 | * Call lpfc_sli_handle_mb_event only if a mailbox cmd | |
5154 | * did finish. This way we won't get the misleading | |
5155 | * "Stray Mailbox Interrupt" message. | |
5156 | */ | |
5157 | spin_lock_irq(&phba->hbalock); | |
5158 | ha_copy = phba->work_ha; | |
5159 | phba->work_ha &= ~HA_MBATT; | |
5160 | spin_unlock_irq(&phba->hbalock); | |
5161 | ||
5162 | if (ha_copy & HA_MBATT) | |
5163 | if (lpfc_sli_handle_mb_event(phba) == 0) | |
5164 | i = 0; | |
b4c02652 JS |
5165 | |
5166 | msleep(1); | |
5167 | } | |
5168 | ||
5169 | return (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) ? 1 : 0; | |
5170 | } | |
5171 | ||
e59058c4 | 5172 | /** |
9399627f JS |
5173 | * lpfc_sli_check_eratt: check error attention events |
5174 | * @phba: Pointer to HBA context. | |
5175 | * | |
5176 | * This function is called form timer soft interrupt context to check HBA's | |
5177 | * error attention register bit for error attention events. | |
5178 | * | |
5179 | * This fucntion returns 1 when there is Error Attention in the Host Attention | |
5180 | * Register and returns 0 otherwise. | |
5181 | **/ | |
5182 | int | |
5183 | lpfc_sli_check_eratt(struct lpfc_hba *phba) | |
5184 | { | |
5185 | uint32_t ha_copy; | |
5186 | ||
5187 | /* If somebody is waiting to handle an eratt, don't process it | |
5188 | * here. The brdkill function will do this. | |
5189 | */ | |
5190 | if (phba->link_flag & LS_IGNORE_ERATT) | |
5191 | return 0; | |
5192 | ||
5193 | /* Check if interrupt handler handles this ERATT */ | |
5194 | spin_lock_irq(&phba->hbalock); | |
5195 | if (phba->hba_flag & HBA_ERATT_HANDLED) { | |
5196 | /* Interrupt handler has handled ERATT */ | |
5197 | spin_unlock_irq(&phba->hbalock); | |
5198 | return 0; | |
5199 | } | |
5200 | ||
5201 | /* Read chip Host Attention (HA) register */ | |
5202 | ha_copy = readl(phba->HAregaddr); | |
5203 | if (ha_copy & HA_ERATT) { | |
5204 | /* Read host status register to retrieve error event */ | |
5205 | lpfc_sli_read_hs(phba); | |
5206 | /* Set the driver HA work bitmap */ | |
5207 | phba->work_ha |= HA_ERATT; | |
5208 | /* Indicate polling handles this ERATT */ | |
5209 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
5210 | spin_unlock_irq(&phba->hbalock); | |
5211 | return 1; | |
5212 | } | |
5213 | spin_unlock_irq(&phba->hbalock); | |
5214 | return 0; | |
5215 | } | |
5216 | ||
5217 | /** | |
5218 | * lpfc_sp_intr_handler: The slow-path interrupt handler of lpfc driver. | |
e59058c4 JS |
5219 | * @irq: Interrupt number. |
5220 | * @dev_id: The device context pointer. | |
5221 | * | |
9399627f JS |
5222 | * This function is directly called from the PCI layer as an interrupt |
5223 | * service routine when the device is enabled with MSI-X multi-message | |
5224 | * interrupt mode and there are slow-path events in the HBA. However, | |
5225 | * when the device is enabled with either MSI or Pin-IRQ interrupt mode, | |
5226 | * this function is called as part of the device-level interrupt handler. | |
5227 | * When the PCI slot is in error recovery or the HBA is undergoing | |
5228 | * initialization, the interrupt handler will not process the interrupt. | |
5229 | * The link attention and ELS ring attention events are handled by the | |
5230 | * worker thread. The interrupt handler signals the worker thread and | |
5231 | * and returns for these events. This function is called without any | |
5232 | * lock held. It gets the hbalock to access and update SLI data | |
5233 | * structures. | |
5234 | * | |
5235 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
5236 | * returns IRQ_NONE. | |
e59058c4 | 5237 | **/ |
dea3101e | 5238 | irqreturn_t |
9399627f | 5239 | lpfc_sp_intr_handler(int irq, void *dev_id) |
dea3101e | 5240 | { |
2e0fef85 | 5241 | struct lpfc_hba *phba; |
dea3101e | 5242 | uint32_t ha_copy; |
5243 | uint32_t work_ha_copy; | |
5244 | unsigned long status; | |
dea3101e | 5245 | uint32_t control; |
5246 | ||
92d7f7b0 | 5247 | MAILBOX_t *mbox, *pmbox; |
858c9f6c JS |
5248 | struct lpfc_vport *vport; |
5249 | struct lpfc_nodelist *ndlp; | |
5250 | struct lpfc_dmabuf *mp; | |
92d7f7b0 JS |
5251 | LPFC_MBOXQ_t *pmb; |
5252 | int rc; | |
5253 | ||
dea3101e | 5254 | /* |
5255 | * Get the driver's phba structure from the dev_id and | |
5256 | * assume the HBA is not interrupting. | |
5257 | */ | |
9399627f | 5258 | phba = (struct lpfc_hba *)dev_id; |
dea3101e | 5259 | |
5260 | if (unlikely(!phba)) | |
5261 | return IRQ_NONE; | |
5262 | ||
dea3101e | 5263 | /* |
9399627f JS |
5264 | * Stuff needs to be attented to when this function is invoked as an |
5265 | * individual interrupt handler in MSI-X multi-message interrupt mode | |
dea3101e | 5266 | */ |
9399627f JS |
5267 | if (phba->intr_type == MSIX) { |
5268 | /* If the pci channel is offline, ignore all the interrupts */ | |
5269 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
5270 | return IRQ_NONE; | |
5271 | /* Update device-level interrupt statistics */ | |
5272 | phba->sli.slistat.sli_intr++; | |
5273 | /* Ignore all interrupts during initialization. */ | |
5274 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) | |
5275 | return IRQ_NONE; | |
5276 | /* Need to read HA REG for slow-path events */ | |
5277 | spin_lock(&phba->hbalock); | |
34b02dcd | 5278 | ha_copy = readl(phba->HAregaddr); |
9399627f JS |
5279 | /* If somebody is waiting to handle an eratt don't process it |
5280 | * here. The brdkill function will do this. | |
5281 | */ | |
5282 | if (phba->link_flag & LS_IGNORE_ERATT) | |
5283 | ha_copy &= ~HA_ERATT; | |
5284 | /* Check the need for handling ERATT in interrupt handler */ | |
5285 | if (ha_copy & HA_ERATT) { | |
5286 | if (phba->hba_flag & HBA_ERATT_HANDLED) | |
5287 | /* ERATT polling has handled ERATT */ | |
5288 | ha_copy &= ~HA_ERATT; | |
5289 | else | |
5290 | /* Indicate interrupt handler handles ERATT */ | |
5291 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
5292 | } | |
5293 | /* Clear up only attention source related to slow-path */ | |
5294 | writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)), | |
5295 | phba->HAregaddr); | |
5296 | readl(phba->HAregaddr); /* flush */ | |
34b02dcd | 5297 | spin_unlock(&phba->hbalock); |
9399627f JS |
5298 | } else |
5299 | ha_copy = phba->ha_copy; | |
dea3101e | 5300 | |
dea3101e | 5301 | work_ha_copy = ha_copy & phba->work_ha_mask; |
5302 | ||
9399627f | 5303 | if (work_ha_copy) { |
dea3101e | 5304 | if (work_ha_copy & HA_LATT) { |
5305 | if (phba->sli.sli_flag & LPFC_PROCESS_LA) { | |
5306 | /* | |
5307 | * Turn off Link Attention interrupts | |
5308 | * until CLEAR_LA done | |
5309 | */ | |
2e0fef85 | 5310 | spin_lock(&phba->hbalock); |
dea3101e | 5311 | phba->sli.sli_flag &= ~LPFC_PROCESS_LA; |
5312 | control = readl(phba->HCregaddr); | |
5313 | control &= ~HC_LAINT_ENA; | |
5314 | writel(control, phba->HCregaddr); | |
5315 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 | 5316 | spin_unlock(&phba->hbalock); |
dea3101e | 5317 | } |
5318 | else | |
5319 | work_ha_copy &= ~HA_LATT; | |
5320 | } | |
5321 | ||
9399627f | 5322 | if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) { |
858c9f6c JS |
5323 | /* |
5324 | * Turn off Slow Rings interrupts, LPFC_ELS_RING is | |
5325 | * the only slow ring. | |
5326 | */ | |
5327 | status = (work_ha_copy & | |
5328 | (HA_RXMASK << (4*LPFC_ELS_RING))); | |
5329 | status >>= (4*LPFC_ELS_RING); | |
5330 | if (status & HA_RXMASK) { | |
5331 | spin_lock(&phba->hbalock); | |
5332 | control = readl(phba->HCregaddr); | |
a58cbd52 JS |
5333 | |
5334 | lpfc_debugfs_slow_ring_trc(phba, | |
5335 | "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x", | |
5336 | control, status, | |
5337 | (uint32_t)phba->sli.slistat.sli_intr); | |
5338 | ||
858c9f6c | 5339 | if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) { |
a58cbd52 JS |
5340 | lpfc_debugfs_slow_ring_trc(phba, |
5341 | "ISR Disable ring:" | |
5342 | "pwork:x%x hawork:x%x wait:x%x", | |
5343 | phba->work_ha, work_ha_copy, | |
5344 | (uint32_t)((unsigned long) | |
5e9d9b82 | 5345 | &phba->work_waitq)); |
a58cbd52 | 5346 | |
858c9f6c JS |
5347 | control &= |
5348 | ~(HC_R0INT_ENA << LPFC_ELS_RING); | |
dea3101e | 5349 | writel(control, phba->HCregaddr); |
5350 | readl(phba->HCregaddr); /* flush */ | |
dea3101e | 5351 | } |
a58cbd52 JS |
5352 | else { |
5353 | lpfc_debugfs_slow_ring_trc(phba, | |
5354 | "ISR slow ring: pwork:" | |
5355 | "x%x hawork:x%x wait:x%x", | |
5356 | phba->work_ha, work_ha_copy, | |
5357 | (uint32_t)((unsigned long) | |
5e9d9b82 | 5358 | &phba->work_waitq)); |
a58cbd52 | 5359 | } |
858c9f6c | 5360 | spin_unlock(&phba->hbalock); |
dea3101e | 5361 | } |
5362 | } | |
97eab634 | 5363 | spin_lock(&phba->hbalock); |
9399627f JS |
5364 | if (work_ha_copy & HA_ERATT) |
5365 | lpfc_sli_read_hs(phba); | |
5366 | if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) { | |
92d7f7b0 JS |
5367 | pmb = phba->sli.mbox_active; |
5368 | pmbox = &pmb->mb; | |
34b02dcd | 5369 | mbox = phba->mbox; |
858c9f6c | 5370 | vport = pmb->vport; |
92d7f7b0 JS |
5371 | |
5372 | /* First check out the status word */ | |
5373 | lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t)); | |
5374 | if (pmbox->mbxOwner != OWN_HOST) { | |
97eab634 | 5375 | spin_unlock(&phba->hbalock); |
92d7f7b0 JS |
5376 | /* |
5377 | * Stray Mailbox Interrupt, mbxCommand <cmd> | |
5378 | * mbxStatus <status> | |
5379 | */ | |
09372820 | 5380 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | |
92d7f7b0 | 5381 | LOG_SLI, |
e8b62011 | 5382 | "(%d):0304 Stray Mailbox " |
92d7f7b0 JS |
5383 | "Interrupt mbxCommand x%x " |
5384 | "mbxStatus x%x\n", | |
e8b62011 | 5385 | (vport ? vport->vpi : 0), |
92d7f7b0 JS |
5386 | pmbox->mbxCommand, |
5387 | pmbox->mbxStatus); | |
09372820 JS |
5388 | /* clear mailbox attention bit */ |
5389 | work_ha_copy &= ~HA_MBATT; | |
5390 | } else { | |
97eab634 JS |
5391 | phba->sli.mbox_active = NULL; |
5392 | spin_unlock(&phba->hbalock); | |
09372820 JS |
5393 | phba->last_completion_time = jiffies; |
5394 | del_timer(&phba->sli.mbox_tmo); | |
09372820 JS |
5395 | if (pmb->mbox_cmpl) { |
5396 | lpfc_sli_pcimem_bcopy(mbox, pmbox, | |
5397 | MAILBOX_CMD_SIZE); | |
5398 | } | |
5399 | if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) { | |
5400 | pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG; | |
5401 | ||
5402 | lpfc_debugfs_disc_trc(vport, | |
5403 | LPFC_DISC_TRC_MBOX_VPORT, | |
5404 | "MBOX dflt rpi: : " | |
5405 | "status:x%x rpi:x%x", | |
5406 | (uint32_t)pmbox->mbxStatus, | |
5407 | pmbox->un.varWords[0], 0); | |
5408 | ||
5409 | if (!pmbox->mbxStatus) { | |
5410 | mp = (struct lpfc_dmabuf *) | |
5411 | (pmb->context1); | |
5412 | ndlp = (struct lpfc_nodelist *) | |
5413 | pmb->context2; | |
5414 | ||
5415 | /* Reg_LOGIN of dflt RPI was | |
5416 | * successful. new lets get | |
5417 | * rid of the RPI using the | |
5418 | * same mbox buffer. | |
5419 | */ | |
5420 | lpfc_unreg_login(phba, | |
5421 | vport->vpi, | |
5422 | pmbox->un.varWords[0], | |
5423 | pmb); | |
5424 | pmb->mbox_cmpl = | |
5425 | lpfc_mbx_cmpl_dflt_rpi; | |
5426 | pmb->context1 = mp; | |
5427 | pmb->context2 = ndlp; | |
5428 | pmb->vport = vport; | |
58da1ffb JS |
5429 | rc = lpfc_sli_issue_mbox(phba, |
5430 | pmb, | |
5431 | MBX_NOWAIT); | |
5432 | if (rc != MBX_BUSY) | |
5433 | lpfc_printf_log(phba, | |
5434 | KERN_ERR, | |
5435 | LOG_MBOX | LOG_SLI, | |
d7c255b2 | 5436 | "0350 rc should have" |
58da1ffb | 5437 | "been MBX_BUSY"); |
09372820 JS |
5438 | goto send_current_mbox; |
5439 | } | |
858c9f6c | 5440 | } |
09372820 JS |
5441 | spin_lock(&phba->pport->work_port_lock); |
5442 | phba->pport->work_port_events &= | |
5443 | ~WORKER_MBOX_TMO; | |
5444 | spin_unlock(&phba->pport->work_port_lock); | |
5445 | lpfc_mbox_cmpl_put(phba, pmb); | |
858c9f6c | 5446 | } |
97eab634 JS |
5447 | } else |
5448 | spin_unlock(&phba->hbalock); | |
9399627f | 5449 | |
92d7f7b0 JS |
5450 | if ((work_ha_copy & HA_MBATT) && |
5451 | (phba->sli.mbox_active == NULL)) { | |
858c9f6c | 5452 | send_current_mbox: |
92d7f7b0 | 5453 | /* Process next mailbox command if there is one */ |
58da1ffb JS |
5454 | do { |
5455 | rc = lpfc_sli_issue_mbox(phba, NULL, | |
5456 | MBX_NOWAIT); | |
5457 | } while (rc == MBX_NOT_FINISHED); | |
5458 | if (rc != MBX_SUCCESS) | |
5459 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | | |
5460 | LOG_SLI, "0349 rc should be " | |
5461 | "MBX_SUCCESS"); | |
92d7f7b0 JS |
5462 | } |
5463 | ||
2e0fef85 | 5464 | spin_lock(&phba->hbalock); |
dea3101e | 5465 | phba->work_ha |= work_ha_copy; |
2e0fef85 | 5466 | spin_unlock(&phba->hbalock); |
5e9d9b82 | 5467 | lpfc_worker_wake_up(phba); |
dea3101e | 5468 | } |
9399627f | 5469 | return IRQ_HANDLED; |
dea3101e | 5470 | |
9399627f JS |
5471 | } /* lpfc_sp_intr_handler */ |
5472 | ||
5473 | /** | |
5474 | * lpfc_fp_intr_handler: The fast-path interrupt handler of lpfc driver. | |
5475 | * @irq: Interrupt number. | |
5476 | * @dev_id: The device context pointer. | |
5477 | * | |
5478 | * This function is directly called from the PCI layer as an interrupt | |
5479 | * service routine when the device is enabled with MSI-X multi-message | |
5480 | * interrupt mode and there is a fast-path FCP IOCB ring event in the | |
5481 | * HBA. However, when the device is enabled with either MSI or Pin-IRQ | |
5482 | * interrupt mode, this function is called as part of the device-level | |
5483 | * interrupt handler. When the PCI slot is in error recovery or the HBA | |
5484 | * is undergoing initialization, the interrupt handler will not process | |
5485 | * the interrupt. The SCSI FCP fast-path ring event are handled in the | |
5486 | * intrrupt context. This function is called without any lock held. It | |
5487 | * gets the hbalock to access and update SLI data structures. | |
5488 | * | |
5489 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
5490 | * returns IRQ_NONE. | |
5491 | **/ | |
5492 | irqreturn_t | |
5493 | lpfc_fp_intr_handler(int irq, void *dev_id) | |
5494 | { | |
5495 | struct lpfc_hba *phba; | |
5496 | uint32_t ha_copy; | |
5497 | unsigned long status; | |
5498 | ||
5499 | /* Get the driver's phba structure from the dev_id and | |
5500 | * assume the HBA is not interrupting. | |
5501 | */ | |
5502 | phba = (struct lpfc_hba *) dev_id; | |
5503 | ||
5504 | if (unlikely(!phba)) | |
5505 | return IRQ_NONE; | |
5506 | ||
5507 | /* | |
5508 | * Stuff needs to be attented to when this function is invoked as an | |
5509 | * individual interrupt handler in MSI-X multi-message interrupt mode | |
5510 | */ | |
5511 | if (phba->intr_type == MSIX) { | |
5512 | /* If pci channel is offline, ignore all the interrupts */ | |
5513 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
5514 | return IRQ_NONE; | |
5515 | /* Update device-level interrupt statistics */ | |
5516 | phba->sli.slistat.sli_intr++; | |
5517 | /* Ignore all interrupts during initialization. */ | |
5518 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) | |
5519 | return IRQ_NONE; | |
5520 | /* Need to read HA REG for FCP ring and other ring events */ | |
5521 | ha_copy = readl(phba->HAregaddr); | |
5522 | /* Clear up only attention source related to fast-path */ | |
5523 | spin_lock(&phba->hbalock); | |
5524 | writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)), | |
5525 | phba->HAregaddr); | |
5526 | readl(phba->HAregaddr); /* flush */ | |
5527 | spin_unlock(&phba->hbalock); | |
5528 | } else | |
5529 | ha_copy = phba->ha_copy; | |
dea3101e | 5530 | |
5531 | /* | |
9399627f | 5532 | * Process all events on FCP ring. Take the optimized path for FCP IO. |
dea3101e | 5533 | */ |
9399627f JS |
5534 | ha_copy &= ~(phba->work_ha_mask); |
5535 | ||
5536 | status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); | |
dea3101e | 5537 | status >>= (4*LPFC_FCP_RING); |
858c9f6c | 5538 | if (status & HA_RXMASK) |
dea3101e | 5539 | lpfc_sli_handle_fast_ring_event(phba, |
5540 | &phba->sli.ring[LPFC_FCP_RING], | |
5541 | status); | |
a4bc3379 JS |
5542 | |
5543 | if (phba->cfg_multi_ring_support == 2) { | |
5544 | /* | |
9399627f JS |
5545 | * Process all events on extra ring. Take the optimized path |
5546 | * for extra ring IO. | |
a4bc3379 | 5547 | */ |
9399627f | 5548 | status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING))); |
a4bc3379 | 5549 | status >>= (4*LPFC_EXTRA_RING); |
858c9f6c | 5550 | if (status & HA_RXMASK) { |
a4bc3379 JS |
5551 | lpfc_sli_handle_fast_ring_event(phba, |
5552 | &phba->sli.ring[LPFC_EXTRA_RING], | |
5553 | status); | |
5554 | } | |
5555 | } | |
dea3101e | 5556 | return IRQ_HANDLED; |
9399627f JS |
5557 | } /* lpfc_fp_intr_handler */ |
5558 | ||
5559 | /** | |
5560 | * lpfc_intr_handler: The device-level interrupt handler of lpfc driver. | |
5561 | * @irq: Interrupt number. | |
5562 | * @dev_id: The device context pointer. | |
5563 | * | |
5564 | * This function is the device-level interrupt handler called from the PCI | |
5565 | * layer when either MSI or Pin-IRQ interrupt mode is enabled and there is | |
5566 | * an event in the HBA which requires driver attention. This function | |
5567 | * invokes the slow-path interrupt attention handling function and fast-path | |
5568 | * interrupt attention handling function in turn to process the relevant | |
5569 | * HBA attention events. This function is called without any lock held. It | |
5570 | * gets the hbalock to access and update SLI data structures. | |
5571 | * | |
5572 | * This function returns IRQ_HANDLED when interrupt is handled, else it | |
5573 | * returns IRQ_NONE. | |
5574 | **/ | |
5575 | irqreturn_t | |
5576 | lpfc_intr_handler(int irq, void *dev_id) | |
5577 | { | |
5578 | struct lpfc_hba *phba; | |
5579 | irqreturn_t sp_irq_rc, fp_irq_rc; | |
5580 | unsigned long status1, status2; | |
5581 | ||
5582 | /* | |
5583 | * Get the driver's phba structure from the dev_id and | |
5584 | * assume the HBA is not interrupting. | |
5585 | */ | |
5586 | phba = (struct lpfc_hba *) dev_id; | |
5587 | ||
5588 | if (unlikely(!phba)) | |
5589 | return IRQ_NONE; | |
5590 | ||
5591 | /* If the pci channel is offline, ignore all the interrupts. */ | |
5592 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
5593 | return IRQ_NONE; | |
5594 | ||
5595 | /* Update device level interrupt statistics */ | |
5596 | phba->sli.slistat.sli_intr++; | |
5597 | ||
5598 | /* Ignore all interrupts during initialization. */ | |
5599 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) | |
5600 | return IRQ_NONE; | |
5601 | ||
5602 | spin_lock(&phba->hbalock); | |
5603 | phba->ha_copy = readl(phba->HAregaddr); | |
5604 | if (unlikely(!phba->ha_copy)) { | |
5605 | spin_unlock(&phba->hbalock); | |
5606 | return IRQ_NONE; | |
5607 | } else if (phba->ha_copy & HA_ERATT) { | |
5608 | if (phba->hba_flag & HBA_ERATT_HANDLED) | |
5609 | /* ERATT polling has handled ERATT */ | |
5610 | phba->ha_copy &= ~HA_ERATT; | |
5611 | else | |
5612 | /* Indicate interrupt handler handles ERATT */ | |
5613 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
5614 | } | |
5615 | ||
5616 | /* Clear attention sources except link and error attentions */ | |
5617 | writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr); | |
5618 | readl(phba->HAregaddr); /* flush */ | |
5619 | spin_unlock(&phba->hbalock); | |
5620 | ||
5621 | /* | |
5622 | * Invokes slow-path host attention interrupt handling as appropriate. | |
5623 | */ | |
5624 | ||
5625 | /* status of events with mailbox and link attention */ | |
5626 | status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT); | |
5627 | ||
5628 | /* status of events with ELS ring */ | |
5629 | status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); | |
5630 | status2 >>= (4*LPFC_ELS_RING); | |
5631 | ||
5632 | if (status1 || (status2 & HA_RXMASK)) | |
5633 | sp_irq_rc = lpfc_sp_intr_handler(irq, dev_id); | |
5634 | else | |
5635 | sp_irq_rc = IRQ_NONE; | |
5636 | ||
5637 | /* | |
5638 | * Invoke fast-path host attention interrupt handling as appropriate. | |
5639 | */ | |
5640 | ||
5641 | /* status of events with FCP ring */ | |
5642 | status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); | |
5643 | status1 >>= (4*LPFC_FCP_RING); | |
5644 | ||
5645 | /* status of events with extra ring */ | |
5646 | if (phba->cfg_multi_ring_support == 2) { | |
5647 | status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING))); | |
5648 | status2 >>= (4*LPFC_EXTRA_RING); | |
5649 | } else | |
5650 | status2 = 0; | |
5651 | ||
5652 | if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK)) | |
5653 | fp_irq_rc = lpfc_fp_intr_handler(irq, dev_id); | |
5654 | else | |
5655 | fp_irq_rc = IRQ_NONE; | |
dea3101e | 5656 | |
9399627f JS |
5657 | /* Return device-level interrupt handling status */ |
5658 | return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc; | |
5659 | } /* lpfc_intr_handler */ |