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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" | |
35 | #include "lpfc_disc.h" | |
36 | #include "lpfc_scsi.h" | |
37 | #include "lpfc.h" | |
38 | #include "lpfc_crtn.h" | |
39 | #include "lpfc_logmsg.h" | |
40 | #include "lpfc_compat.h" | |
858c9f6c | 41 | #include "lpfc_debugfs.h" |
dea3101e | 42 | |
43 | /* | |
44 | * Define macro to log: Mailbox command x%x cannot issue Data | |
45 | * This allows multiple uses of lpfc_msgBlk0311 | |
46 | * w/o perturbing log msg utility. | |
47 | */ | |
92d7f7b0 | 48 | #define LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag) \ |
dea3101e | 49 | lpfc_printf_log(phba, \ |
50 | KERN_INFO, \ | |
51 | LOG_MBOX | LOG_SLI, \ | |
e8b62011 | 52 | "(%d):0311 Mailbox command x%x cannot " \ |
92d7f7b0 | 53 | "issue Data: x%x x%x x%x\n", \ |
92d7f7b0 JS |
54 | pmbox->vport ? pmbox->vport->vpi : 0, \ |
55 | pmbox->mb.mbxCommand, \ | |
2e0fef85 | 56 | phba->pport->port_state, \ |
dea3101e | 57 | psli->sli_flag, \ |
2e0fef85 | 58 | flag) |
dea3101e | 59 | |
60 | ||
61 | /* There are only four IOCB completion types. */ | |
62 | typedef enum _lpfc_iocb_type { | |
63 | LPFC_UNKNOWN_IOCB, | |
64 | LPFC_UNSOL_IOCB, | |
65 | LPFC_SOL_IOCB, | |
66 | LPFC_ABORT_IOCB | |
67 | } lpfc_iocb_type; | |
68 | ||
e59058c4 JS |
69 | /** |
70 | * lpfc_cmd_iocb: Get next command iocb entry in the ring. | |
71 | * @phba: Pointer to HBA context object. | |
72 | * @pring: Pointer to driver SLI ring object. | |
73 | * | |
74 | * This function returns pointer to next command iocb entry | |
75 | * in the command ring. The caller must hold hbalock to prevent | |
76 | * other threads consume the next command iocb. | |
77 | * SLI-2/SLI-3 provide different sized iocbs. | |
78 | **/ | |
ed957684 JS |
79 | static inline IOCB_t * |
80 | lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
81 | { | |
82 | return (IOCB_t *) (((char *) pring->cmdringaddr) + | |
83 | pring->cmdidx * phba->iocb_cmd_size); | |
84 | } | |
85 | ||
e59058c4 JS |
86 | /** |
87 | * lpfc_resp_iocb: Get next response iocb entry in the ring. | |
88 | * @phba: Pointer to HBA context object. | |
89 | * @pring: Pointer to driver SLI ring object. | |
90 | * | |
91 | * This function returns pointer to next response iocb entry | |
92 | * in the response ring. The caller must hold hbalock to make sure | |
93 | * that no other thread consume the next response iocb. | |
94 | * SLI-2/SLI-3 provide different sized iocbs. | |
95 | **/ | |
ed957684 JS |
96 | static inline IOCB_t * |
97 | lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
98 | { | |
99 | return (IOCB_t *) (((char *) pring->rspringaddr) + | |
100 | pring->rspidx * phba->iocb_rsp_size); | |
101 | } | |
102 | ||
e59058c4 JS |
103 | /** |
104 | * __lpfc_sli_get_iocbq: Allocates an iocb object from iocb pool. | |
105 | * @phba: Pointer to HBA context object. | |
106 | * | |
107 | * This function is called with hbalock held. This function | |
108 | * allocates a new driver iocb object from the iocb pool. If the | |
109 | * allocation is successful, it returns pointer to the newly | |
110 | * allocated iocb object else it returns NULL. | |
111 | **/ | |
2e0fef85 JS |
112 | static struct lpfc_iocbq * |
113 | __lpfc_sli_get_iocbq(struct lpfc_hba *phba) | |
0bd4ca25 JSEC |
114 | { |
115 | struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list; | |
116 | struct lpfc_iocbq * iocbq = NULL; | |
117 | ||
118 | list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list); | |
119 | return iocbq; | |
120 | } | |
121 | ||
e59058c4 JS |
122 | /** |
123 | * lpfc_sli_get_iocbq: Allocates an iocb object from iocb pool. | |
124 | * @phba: Pointer to HBA context object. | |
125 | * | |
126 | * This function is called with no lock held. This function | |
127 | * allocates a new driver iocb object from the iocb pool. If the | |
128 | * allocation is successful, it returns pointer to the newly | |
129 | * allocated iocb object else it returns NULL. | |
130 | **/ | |
2e0fef85 JS |
131 | struct lpfc_iocbq * |
132 | lpfc_sli_get_iocbq(struct lpfc_hba *phba) | |
133 | { | |
134 | struct lpfc_iocbq * iocbq = NULL; | |
135 | unsigned long iflags; | |
136 | ||
137 | spin_lock_irqsave(&phba->hbalock, iflags); | |
138 | iocbq = __lpfc_sli_get_iocbq(phba); | |
139 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
140 | return iocbq; | |
141 | } | |
142 | ||
e59058c4 JS |
143 | /** |
144 | * __lpfc_sli_release_iocbq: Release iocb to the iocb pool. | |
145 | * @phba: Pointer to HBA context object. | |
146 | * @iocbq: Pointer to driver iocb object. | |
147 | * | |
148 | * This function is called with hbalock held to release driver | |
149 | * iocb object to the iocb pool. The iotag in the iocb object | |
150 | * does not change for each use of the iocb object. This function | |
151 | * clears all other fields of the iocb object when it is freed. | |
152 | **/ | |
a6ababd2 | 153 | static void |
2e0fef85 | 154 | __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) |
604a3e30 | 155 | { |
2e0fef85 | 156 | size_t start_clean = offsetof(struct lpfc_iocbq, iocb); |
604a3e30 JB |
157 | |
158 | /* | |
159 | * Clean all volatile data fields, preserve iotag and node struct. | |
160 | */ | |
161 | memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean); | |
162 | list_add_tail(&iocbq->list, &phba->lpfc_iocb_list); | |
163 | } | |
164 | ||
e59058c4 JS |
165 | /** |
166 | * lpfc_sli_release_iocbq: Release iocb to the iocb pool. | |
167 | * @phba: Pointer to HBA context object. | |
168 | * @iocbq: Pointer to driver iocb object. | |
169 | * | |
170 | * This function is called with no lock held to release the iocb to | |
171 | * iocb pool. | |
172 | **/ | |
2e0fef85 JS |
173 | void |
174 | lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) | |
175 | { | |
176 | unsigned long iflags; | |
177 | ||
178 | /* | |
179 | * Clean all volatile data fields, preserve iotag and node struct. | |
180 | */ | |
181 | spin_lock_irqsave(&phba->hbalock, iflags); | |
182 | __lpfc_sli_release_iocbq(phba, iocbq); | |
183 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
184 | } | |
185 | ||
e59058c4 JS |
186 | /** |
187 | * lpfc_sli_iocb_cmd_type: Get the iocb type. | |
188 | * @iocb_cmnd : iocb command code. | |
189 | * | |
190 | * This function is called by ring event handler function to get the iocb type. | |
191 | * This function translates the iocb command to an iocb command type used to | |
192 | * decide the final disposition of each completed IOCB. | |
193 | * The function returns | |
194 | * LPFC_UNKNOWN_IOCB if it is an unsupported iocb | |
195 | * LPFC_SOL_IOCB if it is a solicited iocb completion | |
196 | * LPFC_ABORT_IOCB if it is an abort iocb | |
197 | * LPFC_UNSOL_IOCB if it is an unsolicited iocb | |
198 | * | |
199 | * The caller is not required to hold any lock. | |
200 | **/ | |
dea3101e | 201 | static lpfc_iocb_type |
202 | lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd) | |
203 | { | |
204 | lpfc_iocb_type type = LPFC_UNKNOWN_IOCB; | |
205 | ||
206 | if (iocb_cmnd > CMD_MAX_IOCB_CMD) | |
207 | return 0; | |
208 | ||
209 | switch (iocb_cmnd) { | |
210 | case CMD_XMIT_SEQUENCE_CR: | |
211 | case CMD_XMIT_SEQUENCE_CX: | |
212 | case CMD_XMIT_BCAST_CN: | |
213 | case CMD_XMIT_BCAST_CX: | |
214 | case CMD_ELS_REQUEST_CR: | |
215 | case CMD_ELS_REQUEST_CX: | |
216 | case CMD_CREATE_XRI_CR: | |
217 | case CMD_CREATE_XRI_CX: | |
218 | case CMD_GET_RPI_CN: | |
219 | case CMD_XMIT_ELS_RSP_CX: | |
220 | case CMD_GET_RPI_CR: | |
221 | case CMD_FCP_IWRITE_CR: | |
222 | case CMD_FCP_IWRITE_CX: | |
223 | case CMD_FCP_IREAD_CR: | |
224 | case CMD_FCP_IREAD_CX: | |
225 | case CMD_FCP_ICMND_CR: | |
226 | case CMD_FCP_ICMND_CX: | |
f5603511 JS |
227 | case CMD_FCP_TSEND_CX: |
228 | case CMD_FCP_TRSP_CX: | |
229 | case CMD_FCP_TRECEIVE_CX: | |
230 | case CMD_FCP_AUTO_TRSP_CX: | |
dea3101e | 231 | case CMD_ADAPTER_MSG: |
232 | case CMD_ADAPTER_DUMP: | |
233 | case CMD_XMIT_SEQUENCE64_CR: | |
234 | case CMD_XMIT_SEQUENCE64_CX: | |
235 | case CMD_XMIT_BCAST64_CN: | |
236 | case CMD_XMIT_BCAST64_CX: | |
237 | case CMD_ELS_REQUEST64_CR: | |
238 | case CMD_ELS_REQUEST64_CX: | |
239 | case CMD_FCP_IWRITE64_CR: | |
240 | case CMD_FCP_IWRITE64_CX: | |
241 | case CMD_FCP_IREAD64_CR: | |
242 | case CMD_FCP_IREAD64_CX: | |
243 | case CMD_FCP_ICMND64_CR: | |
244 | case CMD_FCP_ICMND64_CX: | |
f5603511 JS |
245 | case CMD_FCP_TSEND64_CX: |
246 | case CMD_FCP_TRSP64_CX: | |
247 | case CMD_FCP_TRECEIVE64_CX: | |
dea3101e | 248 | case CMD_GEN_REQUEST64_CR: |
249 | case CMD_GEN_REQUEST64_CX: | |
250 | case CMD_XMIT_ELS_RSP64_CX: | |
251 | type = LPFC_SOL_IOCB; | |
252 | break; | |
253 | case CMD_ABORT_XRI_CN: | |
254 | case CMD_ABORT_XRI_CX: | |
255 | case CMD_CLOSE_XRI_CN: | |
256 | case CMD_CLOSE_XRI_CX: | |
257 | case CMD_XRI_ABORTED_CX: | |
258 | case CMD_ABORT_MXRI64_CN: | |
259 | type = LPFC_ABORT_IOCB; | |
260 | break; | |
261 | case CMD_RCV_SEQUENCE_CX: | |
262 | case CMD_RCV_ELS_REQ_CX: | |
263 | case CMD_RCV_SEQUENCE64_CX: | |
264 | case CMD_RCV_ELS_REQ64_CX: | |
57127f15 | 265 | case CMD_ASYNC_STATUS: |
ed957684 JS |
266 | case CMD_IOCB_RCV_SEQ64_CX: |
267 | case CMD_IOCB_RCV_ELS64_CX: | |
268 | case CMD_IOCB_RCV_CONT64_CX: | |
3163f725 | 269 | case CMD_IOCB_RET_XRI64_CX: |
dea3101e | 270 | type = LPFC_UNSOL_IOCB; |
271 | break; | |
3163f725 JS |
272 | case CMD_IOCB_XMIT_MSEQ64_CR: |
273 | case CMD_IOCB_XMIT_MSEQ64_CX: | |
274 | case CMD_IOCB_RCV_SEQ_LIST64_CX: | |
275 | case CMD_IOCB_RCV_ELS_LIST64_CX: | |
276 | case CMD_IOCB_CLOSE_EXTENDED_CN: | |
277 | case CMD_IOCB_ABORT_EXTENDED_CN: | |
278 | case CMD_IOCB_RET_HBQE64_CN: | |
279 | case CMD_IOCB_FCP_IBIDIR64_CR: | |
280 | case CMD_IOCB_FCP_IBIDIR64_CX: | |
281 | case CMD_IOCB_FCP_ITASKMGT64_CX: | |
282 | case CMD_IOCB_LOGENTRY_CN: | |
283 | case CMD_IOCB_LOGENTRY_ASYNC_CN: | |
284 | printk("%s - Unhandled SLI-3 Command x%x\n", | |
cadbd4a5 | 285 | __func__, iocb_cmnd); |
3163f725 JS |
286 | type = LPFC_UNKNOWN_IOCB; |
287 | break; | |
dea3101e | 288 | default: |
289 | type = LPFC_UNKNOWN_IOCB; | |
290 | break; | |
291 | } | |
292 | ||
293 | return type; | |
294 | } | |
295 | ||
e59058c4 JS |
296 | /** |
297 | * lpfc_sli_ring_map: Issue config_ring mbox for all rings. | |
298 | * @phba: Pointer to HBA context object. | |
299 | * | |
300 | * This function is called from SLI initialization code | |
301 | * to configure every ring of the HBA's SLI interface. The | |
302 | * caller is not required to hold any lock. This function issues | |
303 | * a config_ring mailbox command for each ring. | |
304 | * This function returns zero if successful else returns a negative | |
305 | * error code. | |
306 | **/ | |
dea3101e | 307 | static int |
ed957684 | 308 | lpfc_sli_ring_map(struct lpfc_hba *phba) |
dea3101e | 309 | { |
310 | struct lpfc_sli *psli = &phba->sli; | |
ed957684 JS |
311 | LPFC_MBOXQ_t *pmb; |
312 | MAILBOX_t *pmbox; | |
313 | int i, rc, ret = 0; | |
dea3101e | 314 | |
ed957684 JS |
315 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
316 | if (!pmb) | |
317 | return -ENOMEM; | |
318 | pmbox = &pmb->mb; | |
319 | phba->link_state = LPFC_INIT_MBX_CMDS; | |
dea3101e | 320 | for (i = 0; i < psli->num_rings; i++) { |
dea3101e | 321 | lpfc_config_ring(phba, i, pmb); |
322 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
323 | if (rc != MBX_SUCCESS) { | |
92d7f7b0 | 324 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 325 | "0446 Adapter failed to init (%d), " |
dea3101e | 326 | "mbxCmd x%x CFG_RING, mbxStatus x%x, " |
327 | "ring %d\n", | |
e8b62011 JS |
328 | rc, pmbox->mbxCommand, |
329 | pmbox->mbxStatus, i); | |
2e0fef85 | 330 | phba->link_state = LPFC_HBA_ERROR; |
ed957684 JS |
331 | ret = -ENXIO; |
332 | break; | |
dea3101e | 333 | } |
334 | } | |
ed957684 JS |
335 | mempool_free(pmb, phba->mbox_mem_pool); |
336 | return ret; | |
dea3101e | 337 | } |
338 | ||
e59058c4 JS |
339 | /** |
340 | * lpfc_sli_ringtxcmpl_put: Adds new iocb to the txcmplq. | |
341 | * @phba: Pointer to HBA context object. | |
342 | * @pring: Pointer to driver SLI ring object. | |
343 | * @piocb: Pointer to the driver iocb object. | |
344 | * | |
345 | * This function is called with hbalock held. The function adds the | |
346 | * new iocb to txcmplq of the given ring. This function always returns | |
347 | * 0. If this function is called for ELS ring, this function checks if | |
348 | * there is a vport associated with the ELS command. This function also | |
349 | * starts els_tmofunc timer if this is an ELS command. | |
350 | **/ | |
dea3101e | 351 | static int |
2e0fef85 JS |
352 | lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
353 | struct lpfc_iocbq *piocb) | |
dea3101e | 354 | { |
dea3101e | 355 | list_add_tail(&piocb->list, &pring->txcmplq); |
356 | pring->txcmplq_cnt++; | |
92d7f7b0 JS |
357 | if ((unlikely(pring->ringno == LPFC_ELS_RING)) && |
358 | (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) && | |
359 | (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) { | |
360 | if (!piocb->vport) | |
361 | BUG(); | |
362 | else | |
363 | mod_timer(&piocb->vport->els_tmofunc, | |
364 | jiffies + HZ * (phba->fc_ratov << 1)); | |
365 | } | |
366 | ||
dea3101e | 367 | |
2e0fef85 | 368 | return 0; |
dea3101e | 369 | } |
370 | ||
e59058c4 JS |
371 | /** |
372 | * lpfc_sli_ringtx_get: Get first element of the txq. | |
373 | * @phba: Pointer to HBA context object. | |
374 | * @pring: Pointer to driver SLI ring object. | |
375 | * | |
376 | * This function is called with hbalock held to get next | |
377 | * iocb in txq of the given ring. If there is any iocb in | |
378 | * the txq, the function returns first iocb in the list after | |
379 | * removing the iocb from the list, else it returns NULL. | |
380 | **/ | |
dea3101e | 381 | static struct lpfc_iocbq * |
2e0fef85 | 382 | lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 383 | { |
dea3101e | 384 | struct lpfc_iocbq *cmd_iocb; |
385 | ||
858c9f6c JS |
386 | list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list); |
387 | if (cmd_iocb != NULL) | |
dea3101e | 388 | pring->txq_cnt--; |
2e0fef85 | 389 | return cmd_iocb; |
dea3101e | 390 | } |
391 | ||
e59058c4 JS |
392 | /** |
393 | * lpfc_sli_next_iocb_slot: Get next iocb slot in the ring. | |
394 | * @phba: Pointer to HBA context object. | |
395 | * @pring: Pointer to driver SLI ring object. | |
396 | * | |
397 | * This function is called with hbalock held and the caller must post the | |
398 | * iocb without releasing the lock. If the caller releases the lock, | |
399 | * iocb slot returned by the function is not guaranteed to be available. | |
400 | * The function returns pointer to the next available iocb slot if there | |
401 | * is available slot in the ring, else it returns NULL. | |
402 | * If the get index of the ring is ahead of the put index, the function | |
403 | * will post an error attention event to the worker thread to take the | |
404 | * HBA to offline state. | |
405 | **/ | |
dea3101e | 406 | static IOCB_t * |
407 | lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
408 | { | |
34b02dcd | 409 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
dea3101e | 410 | uint32_t max_cmd_idx = pring->numCiocb; |
dea3101e | 411 | if ((pring->next_cmdidx == pring->cmdidx) && |
412 | (++pring->next_cmdidx >= max_cmd_idx)) | |
413 | pring->next_cmdidx = 0; | |
414 | ||
415 | if (unlikely(pring->local_getidx == pring->next_cmdidx)) { | |
416 | ||
417 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
418 | ||
419 | if (unlikely(pring->local_getidx >= max_cmd_idx)) { | |
420 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 421 | "0315 Ring %d issue: portCmdGet %d " |
dea3101e | 422 | "is bigger then cmd ring %d\n", |
e8b62011 | 423 | pring->ringno, |
dea3101e | 424 | pring->local_getidx, max_cmd_idx); |
425 | ||
2e0fef85 | 426 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 427 | /* |
428 | * All error attention handlers are posted to | |
429 | * worker thread | |
430 | */ | |
431 | phba->work_ha |= HA_ERATT; | |
432 | phba->work_hs = HS_FFER3; | |
92d7f7b0 | 433 | |
5e9d9b82 | 434 | lpfc_worker_wake_up(phba); |
dea3101e | 435 | |
436 | return NULL; | |
437 | } | |
438 | ||
439 | if (pring->local_getidx == pring->next_cmdidx) | |
440 | return NULL; | |
441 | } | |
442 | ||
ed957684 | 443 | return lpfc_cmd_iocb(phba, pring); |
dea3101e | 444 | } |
445 | ||
e59058c4 JS |
446 | /** |
447 | * lpfc_sli_next_iotag: Get an iotag for the iocb. | |
448 | * @phba: Pointer to HBA context object. | |
449 | * @iocbq: Pointer to driver iocb object. | |
450 | * | |
451 | * This function gets an iotag for the iocb. If there is no unused iotag and | |
452 | * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup | |
453 | * array and assigns a new iotag. | |
454 | * The function returns the allocated iotag if successful, else returns zero. | |
455 | * Zero is not a valid iotag. | |
456 | * The caller is not required to hold any lock. | |
457 | **/ | |
604a3e30 | 458 | uint16_t |
2e0fef85 | 459 | lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) |
dea3101e | 460 | { |
2e0fef85 JS |
461 | struct lpfc_iocbq **new_arr; |
462 | struct lpfc_iocbq **old_arr; | |
604a3e30 JB |
463 | size_t new_len; |
464 | struct lpfc_sli *psli = &phba->sli; | |
465 | uint16_t iotag; | |
dea3101e | 466 | |
2e0fef85 | 467 | spin_lock_irq(&phba->hbalock); |
604a3e30 JB |
468 | iotag = psli->last_iotag; |
469 | if(++iotag < psli->iocbq_lookup_len) { | |
470 | psli->last_iotag = iotag; | |
471 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 472 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
473 | iocbq->iotag = iotag; |
474 | return iotag; | |
2e0fef85 | 475 | } else if (psli->iocbq_lookup_len < (0xffff |
604a3e30 JB |
476 | - LPFC_IOCBQ_LOOKUP_INCREMENT)) { |
477 | new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT; | |
2e0fef85 JS |
478 | spin_unlock_irq(&phba->hbalock); |
479 | new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *), | |
604a3e30 JB |
480 | GFP_KERNEL); |
481 | if (new_arr) { | |
2e0fef85 | 482 | spin_lock_irq(&phba->hbalock); |
604a3e30 JB |
483 | old_arr = psli->iocbq_lookup; |
484 | if (new_len <= psli->iocbq_lookup_len) { | |
485 | /* highly unprobable case */ | |
486 | kfree(new_arr); | |
487 | iotag = psli->last_iotag; | |
488 | if(++iotag < psli->iocbq_lookup_len) { | |
489 | psli->last_iotag = iotag; | |
490 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 491 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
492 | iocbq->iotag = iotag; |
493 | return iotag; | |
494 | } | |
2e0fef85 | 495 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
496 | return 0; |
497 | } | |
498 | if (psli->iocbq_lookup) | |
499 | memcpy(new_arr, old_arr, | |
500 | ((psli->last_iotag + 1) * | |
311464ec | 501 | sizeof (struct lpfc_iocbq *))); |
604a3e30 JB |
502 | psli->iocbq_lookup = new_arr; |
503 | psli->iocbq_lookup_len = new_len; | |
504 | psli->last_iotag = iotag; | |
505 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 506 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
507 | iocbq->iotag = iotag; |
508 | kfree(old_arr); | |
509 | return iotag; | |
510 | } | |
8f6d98d2 | 511 | } else |
2e0fef85 | 512 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 513 | |
604a3e30 | 514 | lpfc_printf_log(phba, KERN_ERR,LOG_SLI, |
e8b62011 JS |
515 | "0318 Failed to allocate IOTAG.last IOTAG is %d\n", |
516 | psli->last_iotag); | |
dea3101e | 517 | |
604a3e30 | 518 | return 0; |
dea3101e | 519 | } |
520 | ||
e59058c4 JS |
521 | /** |
522 | * lpfc_sli_submit_iocb: Submit an iocb to the firmware. | |
523 | * @phba: Pointer to HBA context object. | |
524 | * @pring: Pointer to driver SLI ring object. | |
525 | * @iocb: Pointer to iocb slot in the ring. | |
526 | * @nextiocb: Pointer to driver iocb object which need to be | |
527 | * posted to firmware. | |
528 | * | |
529 | * This function is called with hbalock held to post a new iocb to | |
530 | * the firmware. This function copies the new iocb to ring iocb slot and | |
531 | * updates the ring pointers. It adds the new iocb to txcmplq if there is | |
532 | * a completion call back for this iocb else the function will free the | |
533 | * iocb object. | |
534 | **/ | |
dea3101e | 535 | static void |
536 | lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
537 | IOCB_t *iocb, struct lpfc_iocbq *nextiocb) | |
538 | { | |
539 | /* | |
604a3e30 | 540 | * Set up an iotag |
dea3101e | 541 | */ |
604a3e30 | 542 | nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0; |
dea3101e | 543 | |
a58cbd52 JS |
544 | if (pring->ringno == LPFC_ELS_RING) { |
545 | lpfc_debugfs_slow_ring_trc(phba, | |
546 | "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x", | |
547 | *(((uint32_t *) &nextiocb->iocb) + 4), | |
548 | *(((uint32_t *) &nextiocb->iocb) + 6), | |
549 | *(((uint32_t *) &nextiocb->iocb) + 7)); | |
550 | } | |
551 | ||
dea3101e | 552 | /* |
553 | * Issue iocb command to adapter | |
554 | */ | |
92d7f7b0 | 555 | lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size); |
dea3101e | 556 | wmb(); |
557 | pring->stats.iocb_cmd++; | |
558 | ||
559 | /* | |
560 | * If there is no completion routine to call, we can release the | |
561 | * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF, | |
562 | * that have no rsp ring completion, iocb_cmpl MUST be NULL. | |
563 | */ | |
564 | if (nextiocb->iocb_cmpl) | |
565 | lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb); | |
604a3e30 | 566 | else |
2e0fef85 | 567 | __lpfc_sli_release_iocbq(phba, nextiocb); |
dea3101e | 568 | |
569 | /* | |
570 | * Let the HBA know what IOCB slot will be the next one the | |
571 | * driver will put a command into. | |
572 | */ | |
573 | pring->cmdidx = pring->next_cmdidx; | |
ed957684 | 574 | writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx); |
dea3101e | 575 | } |
576 | ||
e59058c4 JS |
577 | /** |
578 | * lpfc_sli_update_full_ring: Update the chip attention register. | |
579 | * @phba: Pointer to HBA context object. | |
580 | * @pring: Pointer to driver SLI ring object. | |
581 | * | |
582 | * The caller is not required to hold any lock for calling this function. | |
583 | * This function updates the chip attention bits for the ring to inform firmware | |
584 | * that there are pending work to be done for this ring and requests an | |
585 | * interrupt when there is space available in the ring. This function is | |
586 | * called when the driver is unable to post more iocbs to the ring due | |
587 | * to unavailability of space in the ring. | |
588 | **/ | |
dea3101e | 589 | static void |
2e0fef85 | 590 | lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 591 | { |
592 | int ringno = pring->ringno; | |
593 | ||
594 | pring->flag |= LPFC_CALL_RING_AVAILABLE; | |
595 | ||
596 | wmb(); | |
597 | ||
598 | /* | |
599 | * Set ring 'ringno' to SET R0CE_REQ in Chip Att register. | |
600 | * The HBA will tell us when an IOCB entry is available. | |
601 | */ | |
602 | writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr); | |
603 | readl(phba->CAregaddr); /* flush */ | |
604 | ||
605 | pring->stats.iocb_cmd_full++; | |
606 | } | |
607 | ||
e59058c4 JS |
608 | /** |
609 | * lpfc_sli_update_ring: Update chip attention register. | |
610 | * @phba: Pointer to HBA context object. | |
611 | * @pring: Pointer to driver SLI ring object. | |
612 | * | |
613 | * This function updates the chip attention register bit for the | |
614 | * given ring to inform HBA that there is more work to be done | |
615 | * in this ring. The caller is not required to hold any lock. | |
616 | **/ | |
dea3101e | 617 | static void |
2e0fef85 | 618 | lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 619 | { |
620 | int ringno = pring->ringno; | |
621 | ||
622 | /* | |
623 | * Tell the HBA that there is work to do in this ring. | |
624 | */ | |
34b02dcd JS |
625 | if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) { |
626 | wmb(); | |
627 | writel(CA_R0ATT << (ringno * 4), phba->CAregaddr); | |
628 | readl(phba->CAregaddr); /* flush */ | |
629 | } | |
dea3101e | 630 | } |
631 | ||
e59058c4 JS |
632 | /** |
633 | * lpfc_sli_resume_iocb: Process iocbs in the txq. | |
634 | * @phba: Pointer to HBA context object. | |
635 | * @pring: Pointer to driver SLI ring object. | |
636 | * | |
637 | * This function is called with hbalock held to post pending iocbs | |
638 | * in the txq to the firmware. This function is called when driver | |
639 | * detects space available in the ring. | |
640 | **/ | |
dea3101e | 641 | static void |
2e0fef85 | 642 | lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 643 | { |
644 | IOCB_t *iocb; | |
645 | struct lpfc_iocbq *nextiocb; | |
646 | ||
647 | /* | |
648 | * Check to see if: | |
649 | * (a) there is anything on the txq to send | |
650 | * (b) link is up | |
651 | * (c) link attention events can be processed (fcp ring only) | |
652 | * (d) IOCB processing is not blocked by the outstanding mbox command. | |
653 | */ | |
654 | if (pring->txq_cnt && | |
2e0fef85 | 655 | lpfc_is_link_up(phba) && |
dea3101e | 656 | (pring->ringno != phba->sli.fcp_ring || |
0b727fea | 657 | phba->sli.sli_flag & LPFC_PROCESS_LA)) { |
dea3101e | 658 | |
659 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && | |
660 | (nextiocb = lpfc_sli_ringtx_get(phba, pring))) | |
661 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
662 | ||
663 | if (iocb) | |
664 | lpfc_sli_update_ring(phba, pring); | |
665 | else | |
666 | lpfc_sli_update_full_ring(phba, pring); | |
667 | } | |
668 | ||
669 | return; | |
670 | } | |
671 | ||
e59058c4 JS |
672 | /** |
673 | * lpfc_sli_next_hbq_slot: Get next hbq entry for the HBQ. | |
674 | * @phba: Pointer to HBA context object. | |
675 | * @hbqno: HBQ number. | |
676 | * | |
677 | * This function is called with hbalock held to get the next | |
678 | * available slot for the given HBQ. If there is free slot | |
679 | * available for the HBQ it will return pointer to the next available | |
680 | * HBQ entry else it will return NULL. | |
681 | **/ | |
a6ababd2 | 682 | static struct lpfc_hbq_entry * |
ed957684 JS |
683 | lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno) |
684 | { | |
685 | struct hbq_s *hbqp = &phba->hbqs[hbqno]; | |
686 | ||
687 | if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx && | |
688 | ++hbqp->next_hbqPutIdx >= hbqp->entry_count) | |
689 | hbqp->next_hbqPutIdx = 0; | |
690 | ||
691 | if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) { | |
92d7f7b0 | 692 | uint32_t raw_index = phba->hbq_get[hbqno]; |
ed957684 JS |
693 | uint32_t getidx = le32_to_cpu(raw_index); |
694 | ||
695 | hbqp->local_hbqGetIdx = getidx; | |
696 | ||
697 | if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) { | |
698 | lpfc_printf_log(phba, KERN_ERR, | |
92d7f7b0 | 699 | LOG_SLI | LOG_VPORT, |
e8b62011 | 700 | "1802 HBQ %d: local_hbqGetIdx " |
ed957684 | 701 | "%u is > than hbqp->entry_count %u\n", |
e8b62011 | 702 | hbqno, hbqp->local_hbqGetIdx, |
ed957684 JS |
703 | hbqp->entry_count); |
704 | ||
705 | phba->link_state = LPFC_HBA_ERROR; | |
706 | return NULL; | |
707 | } | |
708 | ||
709 | if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx) | |
710 | return NULL; | |
711 | } | |
712 | ||
51ef4c26 JS |
713 | return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt + |
714 | hbqp->hbqPutIdx; | |
ed957684 JS |
715 | } |
716 | ||
e59058c4 JS |
717 | /** |
718 | * lpfc_sli_hbqbuf_free_all: Free all the hbq buffers. | |
719 | * @phba: Pointer to HBA context object. | |
720 | * | |
721 | * This function is called with no lock held to free all the | |
722 | * hbq buffers while uninitializing the SLI interface. It also | |
723 | * frees the HBQ buffers returned by the firmware but not yet | |
724 | * processed by the upper layers. | |
725 | **/ | |
ed957684 JS |
726 | void |
727 | lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba) | |
728 | { | |
92d7f7b0 JS |
729 | struct lpfc_dmabuf *dmabuf, *next_dmabuf; |
730 | struct hbq_dmabuf *hbq_buf; | |
3163f725 | 731 | unsigned long flags; |
51ef4c26 | 732 | int i, hbq_count; |
3163f725 | 733 | uint32_t hbqno; |
ed957684 | 734 | |
51ef4c26 | 735 | hbq_count = lpfc_sli_hbq_count(); |
ed957684 | 736 | /* Return all memory used by all HBQs */ |
3163f725 | 737 | spin_lock_irqsave(&phba->hbalock, flags); |
51ef4c26 JS |
738 | for (i = 0; i < hbq_count; ++i) { |
739 | list_for_each_entry_safe(dmabuf, next_dmabuf, | |
740 | &phba->hbqs[i].hbq_buffer_list, list) { | |
741 | hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf); | |
742 | list_del(&hbq_buf->dbuf.list); | |
743 | (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf); | |
744 | } | |
a8adb832 | 745 | phba->hbqs[i].buffer_count = 0; |
ed957684 | 746 | } |
3163f725 JS |
747 | /* Return all HBQ buffer that are in-fly */ |
748 | list_for_each_entry_safe(dmabuf, next_dmabuf, | |
749 | &phba->hbqbuf_in_list, list) { | |
750 | hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf); | |
751 | list_del(&hbq_buf->dbuf.list); | |
752 | if (hbq_buf->tag == -1) { | |
753 | (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer) | |
754 | (phba, hbq_buf); | |
755 | } else { | |
756 | hbqno = hbq_buf->tag >> 16; | |
757 | if (hbqno >= LPFC_MAX_HBQS) | |
758 | (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer) | |
759 | (phba, hbq_buf); | |
760 | else | |
761 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, | |
762 | hbq_buf); | |
763 | } | |
764 | } | |
765 | ||
766 | /* Mark the HBQs not in use */ | |
767 | phba->hbq_in_use = 0; | |
768 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
ed957684 JS |
769 | } |
770 | ||
e59058c4 JS |
771 | /** |
772 | * lpfc_sli_hbq_to_firmware: Post the hbq buffer to firmware. | |
773 | * @phba: Pointer to HBA context object. | |
774 | * @hbqno: HBQ number. | |
775 | * @hbq_buf: Pointer to HBQ buffer. | |
776 | * | |
777 | * This function is called with the hbalock held to post a | |
778 | * hbq buffer to the firmware. If the function finds an empty | |
779 | * slot in the HBQ, it will post the buffer. The function will return | |
780 | * pointer to the hbq entry if it successfully post the buffer | |
781 | * else it will return NULL. | |
782 | **/ | |
51ef4c26 | 783 | static struct lpfc_hbq_entry * |
ed957684 | 784 | lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno, |
92d7f7b0 | 785 | struct hbq_dmabuf *hbq_buf) |
ed957684 JS |
786 | { |
787 | struct lpfc_hbq_entry *hbqe; | |
92d7f7b0 | 788 | dma_addr_t physaddr = hbq_buf->dbuf.phys; |
ed957684 JS |
789 | |
790 | /* Get next HBQ entry slot to use */ | |
791 | hbqe = lpfc_sli_next_hbq_slot(phba, hbqno); | |
792 | if (hbqe) { | |
793 | struct hbq_s *hbqp = &phba->hbqs[hbqno]; | |
794 | ||
92d7f7b0 JS |
795 | hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr)); |
796 | hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr)); | |
51ef4c26 | 797 | hbqe->bde.tus.f.bdeSize = hbq_buf->size; |
ed957684 | 798 | hbqe->bde.tus.f.bdeFlags = 0; |
92d7f7b0 JS |
799 | hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w); |
800 | hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag); | |
801 | /* Sync SLIM */ | |
ed957684 JS |
802 | hbqp->hbqPutIdx = hbqp->next_hbqPutIdx; |
803 | writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno); | |
92d7f7b0 | 804 | /* flush */ |
ed957684 | 805 | readl(phba->hbq_put + hbqno); |
51ef4c26 | 806 | list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list); |
ed957684 | 807 | } |
51ef4c26 | 808 | return hbqe; |
ed957684 JS |
809 | } |
810 | ||
e59058c4 | 811 | /* HBQ for ELS and CT traffic. */ |
92d7f7b0 JS |
812 | static struct lpfc_hbq_init lpfc_els_hbq = { |
813 | .rn = 1, | |
814 | .entry_count = 200, | |
815 | .mask_count = 0, | |
816 | .profile = 0, | |
51ef4c26 | 817 | .ring_mask = (1 << LPFC_ELS_RING), |
92d7f7b0 JS |
818 | .buffer_count = 0, |
819 | .init_count = 20, | |
820 | .add_count = 5, | |
821 | }; | |
ed957684 | 822 | |
e59058c4 | 823 | /* HBQ for the extra ring if needed */ |
51ef4c26 JS |
824 | static struct lpfc_hbq_init lpfc_extra_hbq = { |
825 | .rn = 1, | |
826 | .entry_count = 200, | |
827 | .mask_count = 0, | |
828 | .profile = 0, | |
829 | .ring_mask = (1 << LPFC_EXTRA_RING), | |
830 | .buffer_count = 0, | |
831 | .init_count = 0, | |
832 | .add_count = 5, | |
833 | }; | |
834 | ||
e59058c4 | 835 | /* Array of HBQs */ |
78b2d852 | 836 | struct lpfc_hbq_init *lpfc_hbq_defs[] = { |
92d7f7b0 | 837 | &lpfc_els_hbq, |
51ef4c26 | 838 | &lpfc_extra_hbq, |
92d7f7b0 | 839 | }; |
ed957684 | 840 | |
e59058c4 JS |
841 | /** |
842 | * lpfc_sli_hbqbuf_fill_hbqs: Post more hbq buffers to HBQ. | |
843 | * @phba: Pointer to HBA context object. | |
844 | * @hbqno: HBQ number. | |
845 | * @count: Number of HBQ buffers to be posted. | |
846 | * | |
847 | * This function is called with no lock held to post more | |
848 | * hbq buffers to the given HBQ. The function returns 0 | |
849 | * when successful and returns 1 other wise. | |
850 | **/ | |
311464ec | 851 | static int |
92d7f7b0 | 852 | lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count) |
ed957684 | 853 | { |
92d7f7b0 | 854 | uint32_t i, start, end; |
3163f725 | 855 | unsigned long flags; |
92d7f7b0 | 856 | struct hbq_dmabuf *hbq_buffer; |
ed957684 | 857 | |
eafe1df9 | 858 | if (!phba->hbqs[hbqno].hbq_alloc_buffer) |
51ef4c26 | 859 | return 0; |
51ef4c26 | 860 | |
a8adb832 JS |
861 | start = phba->hbqs[hbqno].buffer_count; |
862 | end = count + start; | |
eafe1df9 | 863 | if (end > lpfc_hbq_defs[hbqno]->entry_count) |
92d7f7b0 | 864 | end = lpfc_hbq_defs[hbqno]->entry_count; |
ed957684 | 865 | |
3163f725 JS |
866 | /* Check whether HBQ is still in use */ |
867 | spin_lock_irqsave(&phba->hbalock, flags); | |
eafe1df9 MW |
868 | if (!phba->hbq_in_use) |
869 | goto out; | |
3163f725 | 870 | |
ed957684 | 871 | /* Populate HBQ entries */ |
92d7f7b0 | 872 | for (i = start; i < end; i++) { |
51ef4c26 | 873 | hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba); |
92d7f7b0 | 874 | if (!hbq_buffer) |
eafe1df9 | 875 | goto err; |
92d7f7b0 | 876 | hbq_buffer->tag = (i | (hbqno << 16)); |
51ef4c26 | 877 | if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) |
a8adb832 | 878 | phba->hbqs[hbqno].buffer_count++; |
51ef4c26 JS |
879 | else |
880 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); | |
ed957684 | 881 | } |
3163f725 | 882 | |
eafe1df9 | 883 | out: |
3163f725 | 884 | spin_unlock_irqrestore(&phba->hbalock, flags); |
ed957684 | 885 | return 0; |
eafe1df9 MW |
886 | err: |
887 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
888 | return 1; | |
ed957684 JS |
889 | } |
890 | ||
e59058c4 JS |
891 | /** |
892 | * lpfc_sli_hbqbuf_add_hbqs: Post more HBQ buffers to firmware. | |
893 | * @phba: Pointer to HBA context object. | |
894 | * @qno: HBQ number. | |
895 | * | |
896 | * This function posts more buffers to the HBQ. This function | |
897 | * is called with no lock held. The function returns 0 when | |
898 | * successful and returns 1 otherwise. | |
899 | **/ | |
92d7f7b0 JS |
900 | int |
901 | lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno) | |
ed957684 | 902 | { |
92d7f7b0 JS |
903 | return(lpfc_sli_hbqbuf_fill_hbqs(phba, qno, |
904 | lpfc_hbq_defs[qno]->add_count)); | |
905 | } | |
ed957684 | 906 | |
e59058c4 JS |
907 | /** |
908 | * lpfc_sli_hbqbuf_init_hbqs: Post initial buffers to the HBQ. | |
909 | * @phba: Pointer to HBA context object. | |
910 | * @qno: HBQ queue number. | |
911 | * | |
912 | * This function is called from SLI initialization code path with | |
913 | * no lock held to post initial HBQ buffers to firmware. The | |
914 | * function returns 0 when successful and returns 1 otherwise. | |
915 | **/ | |
a6ababd2 | 916 | static int |
92d7f7b0 JS |
917 | lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno) |
918 | { | |
919 | return(lpfc_sli_hbqbuf_fill_hbqs(phba, qno, | |
920 | lpfc_hbq_defs[qno]->init_count)); | |
ed957684 JS |
921 | } |
922 | ||
e59058c4 JS |
923 | /** |
924 | * lpfc_sli_hbqbuf_find: Find the hbq buffer associated with a tag. | |
925 | * @phba: Pointer to HBA context object. | |
926 | * @tag: Tag of the hbq buffer. | |
927 | * | |
928 | * This function is called with hbalock held. This function searches | |
929 | * for the hbq buffer associated with the given tag in the hbq buffer | |
930 | * list. If it finds the hbq buffer, it returns the hbq_buffer other wise | |
931 | * it returns NULL. | |
932 | **/ | |
a6ababd2 | 933 | static struct hbq_dmabuf * |
92d7f7b0 | 934 | lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag) |
ed957684 | 935 | { |
92d7f7b0 JS |
936 | struct lpfc_dmabuf *d_buf; |
937 | struct hbq_dmabuf *hbq_buf; | |
51ef4c26 JS |
938 | uint32_t hbqno; |
939 | ||
940 | hbqno = tag >> 16; | |
a0a74e45 | 941 | if (hbqno >= LPFC_MAX_HBQS) |
51ef4c26 | 942 | return NULL; |
ed957684 | 943 | |
51ef4c26 | 944 | list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) { |
92d7f7b0 | 945 | hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); |
51ef4c26 | 946 | if (hbq_buf->tag == tag) { |
92d7f7b0 | 947 | return hbq_buf; |
ed957684 JS |
948 | } |
949 | } | |
92d7f7b0 | 950 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT, |
e8b62011 | 951 | "1803 Bad hbq tag. Data: x%x x%x\n", |
a8adb832 | 952 | tag, phba->hbqs[tag >> 16].buffer_count); |
92d7f7b0 | 953 | return NULL; |
ed957684 JS |
954 | } |
955 | ||
e59058c4 JS |
956 | /** |
957 | * lpfc_sli_free_hbq: Give back the hbq buffer to firmware. | |
958 | * @phba: Pointer to HBA context object. | |
959 | * @hbq_buffer: Pointer to HBQ buffer. | |
960 | * | |
961 | * This function is called with hbalock. This function gives back | |
962 | * the hbq buffer to firmware. If the HBQ does not have space to | |
963 | * post the buffer, it will free the buffer. | |
964 | **/ | |
ed957684 | 965 | void |
51ef4c26 | 966 | lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer) |
ed957684 JS |
967 | { |
968 | uint32_t hbqno; | |
969 | ||
51ef4c26 JS |
970 | if (hbq_buffer) { |
971 | hbqno = hbq_buffer->tag >> 16; | |
972 | if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) { | |
973 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); | |
974 | } | |
ed957684 JS |
975 | } |
976 | } | |
977 | ||
e59058c4 JS |
978 | /** |
979 | * lpfc_sli_chk_mbx_command: Check if the mailbox is a legitimate mailbox. | |
980 | * @mbxCommand: mailbox command code. | |
981 | * | |
982 | * This function is called by the mailbox event handler function to verify | |
983 | * that the completed mailbox command is a legitimate mailbox command. If the | |
984 | * completed mailbox is not known to the function, it will return MBX_SHUTDOWN | |
985 | * and the mailbox event handler will take the HBA offline. | |
986 | **/ | |
dea3101e | 987 | static int |
988 | lpfc_sli_chk_mbx_command(uint8_t mbxCommand) | |
989 | { | |
990 | uint8_t ret; | |
991 | ||
992 | switch (mbxCommand) { | |
993 | case MBX_LOAD_SM: | |
994 | case MBX_READ_NV: | |
995 | case MBX_WRITE_NV: | |
a8adb832 | 996 | case MBX_WRITE_VPARMS: |
dea3101e | 997 | case MBX_RUN_BIU_DIAG: |
998 | case MBX_INIT_LINK: | |
999 | case MBX_DOWN_LINK: | |
1000 | case MBX_CONFIG_LINK: | |
1001 | case MBX_CONFIG_RING: | |
1002 | case MBX_RESET_RING: | |
1003 | case MBX_READ_CONFIG: | |
1004 | case MBX_READ_RCONFIG: | |
1005 | case MBX_READ_SPARM: | |
1006 | case MBX_READ_STATUS: | |
1007 | case MBX_READ_RPI: | |
1008 | case MBX_READ_XRI: | |
1009 | case MBX_READ_REV: | |
1010 | case MBX_READ_LNK_STAT: | |
1011 | case MBX_REG_LOGIN: | |
1012 | case MBX_UNREG_LOGIN: | |
1013 | case MBX_READ_LA: | |
1014 | case MBX_CLEAR_LA: | |
1015 | case MBX_DUMP_MEMORY: | |
1016 | case MBX_DUMP_CONTEXT: | |
1017 | case MBX_RUN_DIAGS: | |
1018 | case MBX_RESTART: | |
1019 | case MBX_UPDATE_CFG: | |
1020 | case MBX_DOWN_LOAD: | |
1021 | case MBX_DEL_LD_ENTRY: | |
1022 | case MBX_RUN_PROGRAM: | |
1023 | case MBX_SET_MASK: | |
09372820 | 1024 | case MBX_SET_VARIABLE: |
dea3101e | 1025 | case MBX_UNREG_D_ID: |
41415862 | 1026 | case MBX_KILL_BOARD: |
dea3101e | 1027 | case MBX_CONFIG_FARP: |
41415862 | 1028 | case MBX_BEACON: |
dea3101e | 1029 | case MBX_LOAD_AREA: |
1030 | case MBX_RUN_BIU_DIAG64: | |
1031 | case MBX_CONFIG_PORT: | |
1032 | case MBX_READ_SPARM64: | |
1033 | case MBX_READ_RPI64: | |
1034 | case MBX_REG_LOGIN64: | |
1035 | case MBX_READ_LA64: | |
09372820 | 1036 | case MBX_WRITE_WWN: |
dea3101e | 1037 | case MBX_SET_DEBUG: |
1038 | case MBX_LOAD_EXP_ROM: | |
57127f15 | 1039 | case MBX_ASYNCEVT_ENABLE: |
92d7f7b0 JS |
1040 | case MBX_REG_VPI: |
1041 | case MBX_UNREG_VPI: | |
858c9f6c | 1042 | case MBX_HEARTBEAT: |
dea3101e | 1043 | ret = mbxCommand; |
1044 | break; | |
1045 | default: | |
1046 | ret = MBX_SHUTDOWN; | |
1047 | break; | |
1048 | } | |
2e0fef85 | 1049 | return ret; |
dea3101e | 1050 | } |
e59058c4 JS |
1051 | |
1052 | /** | |
1053 | * lpfc_sli_wake_mbox_wait: Completion handler for mbox issued from | |
1054 | * lpfc_sli_issue_mbox_wait. | |
1055 | * @phba: Pointer to HBA context object. | |
1056 | * @pmboxq: Pointer to mailbox command. | |
1057 | * | |
1058 | * This is completion handler function for mailbox commands issued from | |
1059 | * lpfc_sli_issue_mbox_wait function. This function is called by the | |
1060 | * mailbox event handler function with no lock held. This function | |
1061 | * will wake up thread waiting on the wait queue pointed by context1 | |
1062 | * of the mailbox. | |
1063 | **/ | |
dea3101e | 1064 | static void |
2e0fef85 | 1065 | lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) |
dea3101e | 1066 | { |
1067 | wait_queue_head_t *pdone_q; | |
858c9f6c | 1068 | unsigned long drvr_flag; |
dea3101e | 1069 | |
1070 | /* | |
1071 | * If pdone_q is empty, the driver thread gave up waiting and | |
1072 | * continued running. | |
1073 | */ | |
7054a606 | 1074 | pmboxq->mbox_flag |= LPFC_MBX_WAKE; |
858c9f6c | 1075 | spin_lock_irqsave(&phba->hbalock, drvr_flag); |
dea3101e | 1076 | pdone_q = (wait_queue_head_t *) pmboxq->context1; |
1077 | if (pdone_q) | |
1078 | wake_up_interruptible(pdone_q); | |
858c9f6c | 1079 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 1080 | return; |
1081 | } | |
1082 | ||
e59058c4 JS |
1083 | |
1084 | /** | |
1085 | * lpfc_sli_def_mbox_cmpl: Default mailbox completion handler. | |
1086 | * @phba: Pointer to HBA context object. | |
1087 | * @pmb: Pointer to mailbox object. | |
1088 | * | |
1089 | * This function is the default mailbox completion handler. It | |
1090 | * frees the memory resources associated with the completed mailbox | |
1091 | * command. If the completed command is a REG_LOGIN mailbox command, | |
1092 | * this function will issue a UREG_LOGIN to re-claim the RPI. | |
1093 | **/ | |
dea3101e | 1094 | void |
2e0fef85 | 1095 | lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
dea3101e | 1096 | { |
1097 | struct lpfc_dmabuf *mp; | |
7054a606 JS |
1098 | uint16_t rpi; |
1099 | int rc; | |
1100 | ||
dea3101e | 1101 | mp = (struct lpfc_dmabuf *) (pmb->context1); |
7054a606 | 1102 | |
dea3101e | 1103 | if (mp) { |
1104 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
1105 | kfree(mp); | |
1106 | } | |
7054a606 JS |
1107 | |
1108 | /* | |
1109 | * If a REG_LOGIN succeeded after node is destroyed or node | |
1110 | * is in re-discovery driver need to cleanup the RPI. | |
1111 | */ | |
2e0fef85 JS |
1112 | if (!(phba->pport->load_flag & FC_UNLOADING) && |
1113 | pmb->mb.mbxCommand == MBX_REG_LOGIN64 && | |
1114 | !pmb->mb.mbxStatus) { | |
7054a606 JS |
1115 | |
1116 | rpi = pmb->mb.un.varWords[0]; | |
92d7f7b0 JS |
1117 | lpfc_unreg_login(phba, pmb->mb.un.varRegLogin.vpi, rpi, pmb); |
1118 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
7054a606 JS |
1119 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
1120 | if (rc != MBX_NOT_FINISHED) | |
1121 | return; | |
1122 | } | |
1123 | ||
2e0fef85 | 1124 | mempool_free(pmb, phba->mbox_mem_pool); |
dea3101e | 1125 | return; |
1126 | } | |
1127 | ||
e59058c4 JS |
1128 | /** |
1129 | * lpfc_sli_handle_mb_event: Handle mailbox completions from firmware. | |
1130 | * @phba: Pointer to HBA context object. | |
1131 | * | |
1132 | * This function is called with no lock held. This function processes all | |
1133 | * the completed mailbox commands and gives it to upper layers. The interrupt | |
1134 | * service routine processes mailbox completion interrupt and adds completed | |
1135 | * mailbox commands to the mboxq_cmpl queue and signals the worker thread. | |
1136 | * Worker thread call lpfc_sli_handle_mb_event, which will return the | |
1137 | * completed mailbox commands in mboxq_cmpl queue to the upper layers. This | |
1138 | * function returns the mailbox commands to the upper layer by calling the | |
1139 | * completion handler function of each mailbox. | |
1140 | **/ | |
dea3101e | 1141 | int |
2e0fef85 | 1142 | lpfc_sli_handle_mb_event(struct lpfc_hba *phba) |
dea3101e | 1143 | { |
92d7f7b0 | 1144 | MAILBOX_t *pmbox; |
dea3101e | 1145 | LPFC_MBOXQ_t *pmb; |
92d7f7b0 JS |
1146 | int rc; |
1147 | LIST_HEAD(cmplq); | |
dea3101e | 1148 | |
1149 | phba->sli.slistat.mbox_event++; | |
1150 | ||
92d7f7b0 JS |
1151 | /* Get all completed mailboxe buffers into the cmplq */ |
1152 | spin_lock_irq(&phba->hbalock); | |
1153 | list_splice_init(&phba->sli.mboxq_cmpl, &cmplq); | |
1154 | spin_unlock_irq(&phba->hbalock); | |
dea3101e | 1155 | |
92d7f7b0 JS |
1156 | /* Get a Mailbox buffer to setup mailbox commands for callback */ |
1157 | do { | |
1158 | list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list); | |
1159 | if (pmb == NULL) | |
1160 | break; | |
2e0fef85 | 1161 | |
92d7f7b0 | 1162 | pmbox = &pmb->mb; |
dea3101e | 1163 | |
858c9f6c JS |
1164 | if (pmbox->mbxCommand != MBX_HEARTBEAT) { |
1165 | if (pmb->vport) { | |
1166 | lpfc_debugfs_disc_trc(pmb->vport, | |
1167 | LPFC_DISC_TRC_MBOX_VPORT, | |
1168 | "MBOX cmpl vport: cmd:x%x mb:x%x x%x", | |
1169 | (uint32_t)pmbox->mbxCommand, | |
1170 | pmbox->un.varWords[0], | |
1171 | pmbox->un.varWords[1]); | |
1172 | } | |
1173 | else { | |
1174 | lpfc_debugfs_disc_trc(phba->pport, | |
1175 | LPFC_DISC_TRC_MBOX, | |
1176 | "MBOX cmpl: cmd:x%x mb:x%x x%x", | |
1177 | (uint32_t)pmbox->mbxCommand, | |
1178 | pmbox->un.varWords[0], | |
1179 | pmbox->un.varWords[1]); | |
1180 | } | |
1181 | } | |
1182 | ||
dea3101e | 1183 | /* |
1184 | * It is a fatal error if unknown mbox command completion. | |
1185 | */ | |
1186 | if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) == | |
1187 | MBX_SHUTDOWN) { | |
dea3101e | 1188 | /* Unknow mailbox command compl */ |
92d7f7b0 | 1189 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
e8b62011 | 1190 | "(%d):0323 Unknown Mailbox command " |
92d7f7b0 | 1191 | "%x Cmpl\n", |
92d7f7b0 JS |
1192 | pmb->vport ? pmb->vport->vpi : 0, |
1193 | pmbox->mbxCommand); | |
2e0fef85 | 1194 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 1195 | phba->work_hs = HS_FFER3; |
1196 | lpfc_handle_eratt(phba); | |
92d7f7b0 | 1197 | continue; |
dea3101e | 1198 | } |
1199 | ||
dea3101e | 1200 | if (pmbox->mbxStatus) { |
1201 | phba->sli.slistat.mbox_stat_err++; | |
1202 | if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) { | |
1203 | /* Mbox cmd cmpl error - RETRYing */ | |
92d7f7b0 JS |
1204 | lpfc_printf_log(phba, KERN_INFO, |
1205 | LOG_MBOX | LOG_SLI, | |
e8b62011 | 1206 | "(%d):0305 Mbox cmd cmpl " |
92d7f7b0 JS |
1207 | "error - RETRYing Data: x%x " |
1208 | "x%x x%x x%x\n", | |
92d7f7b0 JS |
1209 | pmb->vport ? pmb->vport->vpi :0, |
1210 | pmbox->mbxCommand, | |
1211 | pmbox->mbxStatus, | |
1212 | pmbox->un.varWords[0], | |
1213 | pmb->vport->port_state); | |
dea3101e | 1214 | pmbox->mbxStatus = 0; |
1215 | pmbox->mbxOwner = OWN_HOST; | |
2e0fef85 | 1216 | spin_lock_irq(&phba->hbalock); |
dea3101e | 1217 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 1218 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 1219 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
1220 | if (rc == MBX_SUCCESS) | |
92d7f7b0 | 1221 | continue; |
dea3101e | 1222 | } |
1223 | } | |
1224 | ||
1225 | /* Mailbox cmd <cmd> Cmpl <cmpl> */ | |
92d7f7b0 | 1226 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
e8b62011 | 1227 | "(%d):0307 Mailbox cmd x%x Cmpl x%p " |
dea3101e | 1228 | "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n", |
92d7f7b0 | 1229 | pmb->vport ? pmb->vport->vpi : 0, |
dea3101e | 1230 | pmbox->mbxCommand, |
1231 | pmb->mbox_cmpl, | |
1232 | *((uint32_t *) pmbox), | |
1233 | pmbox->un.varWords[0], | |
1234 | pmbox->un.varWords[1], | |
1235 | pmbox->un.varWords[2], | |
1236 | pmbox->un.varWords[3], | |
1237 | pmbox->un.varWords[4], | |
1238 | pmbox->un.varWords[5], | |
1239 | pmbox->un.varWords[6], | |
1240 | pmbox->un.varWords[7]); | |
1241 | ||
92d7f7b0 | 1242 | if (pmb->mbox_cmpl) |
dea3101e | 1243 | pmb->mbox_cmpl(phba,pmb); |
92d7f7b0 JS |
1244 | } while (1); |
1245 | return 0; | |
1246 | } | |
dea3101e | 1247 | |
e59058c4 JS |
1248 | /** |
1249 | * lpfc_sli_replace_hbqbuff: Replace the HBQ buffer with a new buffer. | |
1250 | * @phba: Pointer to HBA context object. | |
1251 | * @tag: Tag for the HBQ buffer. | |
1252 | * | |
1253 | * This function is called from unsolicited event handler code path to get the | |
1254 | * HBQ buffer associated with an unsolicited iocb. This function is called with | |
1255 | * no lock held. It returns the buffer associated with the given tag and posts | |
1256 | * another buffer to the firmware. | |
1257 | **/ | |
92d7f7b0 JS |
1258 | static struct lpfc_dmabuf * |
1259 | lpfc_sli_replace_hbqbuff(struct lpfc_hba *phba, uint32_t tag) | |
1260 | { | |
1261 | struct hbq_dmabuf *hbq_entry, *new_hbq_entry; | |
51ef4c26 JS |
1262 | uint32_t hbqno; |
1263 | void *virt; /* virtual address ptr */ | |
1264 | dma_addr_t phys; /* mapped address */ | |
3163f725 JS |
1265 | unsigned long flags; |
1266 | ||
1267 | /* Check whether HBQ is still in use */ | |
1268 | spin_lock_irqsave(&phba->hbalock, flags); | |
1269 | if (!phba->hbq_in_use) { | |
1270 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
1271 | return NULL; | |
1272 | } | |
dea3101e | 1273 | |
92d7f7b0 | 1274 | hbq_entry = lpfc_sli_hbqbuf_find(phba, tag); |
3163f725 JS |
1275 | if (hbq_entry == NULL) { |
1276 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
92d7f7b0 | 1277 | return NULL; |
3163f725 | 1278 | } |
92d7f7b0 | 1279 | list_del(&hbq_entry->dbuf.list); |
51ef4c26 JS |
1280 | |
1281 | hbqno = tag >> 16; | |
1282 | new_hbq_entry = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba); | |
3163f725 JS |
1283 | if (new_hbq_entry == NULL) { |
1284 | list_add_tail(&hbq_entry->dbuf.list, &phba->hbqbuf_in_list); | |
1285 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
92d7f7b0 | 1286 | return &hbq_entry->dbuf; |
3163f725 | 1287 | } |
92d7f7b0 | 1288 | new_hbq_entry->tag = -1; |
51ef4c26 JS |
1289 | phys = new_hbq_entry->dbuf.phys; |
1290 | virt = new_hbq_entry->dbuf.virt; | |
1291 | new_hbq_entry->dbuf.phys = hbq_entry->dbuf.phys; | |
1292 | new_hbq_entry->dbuf.virt = hbq_entry->dbuf.virt; | |
1293 | hbq_entry->dbuf.phys = phys; | |
1294 | hbq_entry->dbuf.virt = virt; | |
92d7f7b0 | 1295 | lpfc_sli_free_hbq(phba, hbq_entry); |
3163f725 JS |
1296 | list_add_tail(&new_hbq_entry->dbuf.list, &phba->hbqbuf_in_list); |
1297 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
1298 | ||
92d7f7b0 | 1299 | return &new_hbq_entry->dbuf; |
dea3101e | 1300 | } |
92d7f7b0 | 1301 | |
e59058c4 JS |
1302 | /** |
1303 | * lpfc_sli_get_buff: Get the buffer associated with the buffer tag. | |
1304 | * @phba: Pointer to HBA context object. | |
1305 | * @pring: Pointer to driver SLI ring object. | |
1306 | * @tag: buffer tag. | |
1307 | * | |
1308 | * This function is called with no lock held. When QUE_BUFTAG_BIT bit | |
1309 | * is set in the tag the buffer is posted for a particular exchange, | |
1310 | * the function will return the buffer without replacing the buffer. | |
1311 | * If the buffer is for unsolicited ELS or CT traffic, this function | |
1312 | * returns the buffer and also posts another buffer to the firmware. | |
1313 | **/ | |
76bb24ef JS |
1314 | static struct lpfc_dmabuf * |
1315 | lpfc_sli_get_buff(struct lpfc_hba *phba, | |
1316 | struct lpfc_sli_ring *pring, | |
1317 | uint32_t tag) | |
1318 | { | |
1319 | if (tag & QUE_BUFTAG_BIT) | |
1320 | return lpfc_sli_ring_taggedbuf_get(phba, pring, tag); | |
1321 | else | |
1322 | return lpfc_sli_replace_hbqbuff(phba, tag); | |
1323 | } | |
57127f15 | 1324 | |
e59058c4 JS |
1325 | |
1326 | /** | |
1327 | * lpfc_sli_process_unsol_iocb: Unsolicited iocb handler. | |
1328 | * @phba: Pointer to HBA context object. | |
1329 | * @pring: Pointer to driver SLI ring object. | |
1330 | * @saveq: Pointer to the unsolicited iocb. | |
1331 | * | |
1332 | * This function is called with no lock held by the ring event handler | |
1333 | * when there is an unsolicited iocb posted to the response ring by the | |
1334 | * firmware. This function gets the buffer associated with the iocbs | |
1335 | * and calls the event handler for the ring. This function handles both | |
1336 | * qring buffers and hbq buffers. | |
1337 | * When the function returns 1 the caller can free the iocb object otherwise | |
1338 | * upper layer functions will free the iocb objects. | |
1339 | **/ | |
dea3101e | 1340 | static int |
1341 | lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
1342 | struct lpfc_iocbq *saveq) | |
1343 | { | |
1344 | IOCB_t * irsp; | |
1345 | WORD5 * w5p; | |
1346 | uint32_t Rctl, Type; | |
1347 | uint32_t match, i; | |
76bb24ef | 1348 | struct lpfc_iocbq *iocbq; |
3163f725 | 1349 | struct lpfc_dmabuf *dmzbuf; |
dea3101e | 1350 | |
1351 | match = 0; | |
1352 | irsp = &(saveq->iocb); | |
57127f15 | 1353 | |
9c2face6 JS |
1354 | if (irsp->ulpStatus == IOSTAT_NEED_BUFFER) |
1355 | return 1; | |
57127f15 JS |
1356 | if (irsp->ulpCommand == CMD_ASYNC_STATUS) { |
1357 | if (pring->lpfc_sli_rcv_async_status) | |
1358 | pring->lpfc_sli_rcv_async_status(phba, pring, saveq); | |
1359 | else | |
1360 | lpfc_printf_log(phba, | |
1361 | KERN_WARNING, | |
1362 | LOG_SLI, | |
1363 | "0316 Ring %d handler: unexpected " | |
1364 | "ASYNC_STATUS iocb received evt_code " | |
1365 | "0x%x\n", | |
1366 | pring->ringno, | |
1367 | irsp->un.asyncstat.evt_code); | |
1368 | return 1; | |
1369 | } | |
1370 | ||
3163f725 JS |
1371 | if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) && |
1372 | (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) { | |
1373 | if (irsp->ulpBdeCount > 0) { | |
1374 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
1375 | irsp->un.ulpWord[3]); | |
1376 | lpfc_in_buf_free(phba, dmzbuf); | |
1377 | } | |
1378 | ||
1379 | if (irsp->ulpBdeCount > 1) { | |
1380 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
1381 | irsp->unsli3.sli3Words[3]); | |
1382 | lpfc_in_buf_free(phba, dmzbuf); | |
1383 | } | |
1384 | ||
1385 | if (irsp->ulpBdeCount > 2) { | |
1386 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
1387 | irsp->unsli3.sli3Words[7]); | |
1388 | lpfc_in_buf_free(phba, dmzbuf); | |
1389 | } | |
1390 | ||
1391 | return 1; | |
1392 | } | |
1393 | ||
92d7f7b0 | 1394 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
76bb24ef JS |
1395 | if (irsp->ulpBdeCount != 0) { |
1396 | saveq->context2 = lpfc_sli_get_buff(phba, pring, | |
1397 | irsp->un.ulpWord[3]); | |
1398 | if (!saveq->context2) | |
1399 | lpfc_printf_log(phba, | |
1400 | KERN_ERR, | |
1401 | LOG_SLI, | |
1402 | "0341 Ring %d Cannot find buffer for " | |
1403 | "an unsolicited iocb. tag 0x%x\n", | |
1404 | pring->ringno, | |
1405 | irsp->un.ulpWord[3]); | |
76bb24ef JS |
1406 | } |
1407 | if (irsp->ulpBdeCount == 2) { | |
1408 | saveq->context3 = lpfc_sli_get_buff(phba, pring, | |
1409 | irsp->unsli3.sli3Words[7]); | |
1410 | if (!saveq->context3) | |
1411 | lpfc_printf_log(phba, | |
1412 | KERN_ERR, | |
1413 | LOG_SLI, | |
1414 | "0342 Ring %d Cannot find buffer for an" | |
1415 | " unsolicited iocb. tag 0x%x\n", | |
1416 | pring->ringno, | |
1417 | irsp->unsli3.sli3Words[7]); | |
1418 | } | |
1419 | list_for_each_entry(iocbq, &saveq->list, list) { | |
76bb24ef | 1420 | irsp = &(iocbq->iocb); |
76bb24ef JS |
1421 | if (irsp->ulpBdeCount != 0) { |
1422 | iocbq->context2 = lpfc_sli_get_buff(phba, pring, | |
1423 | irsp->un.ulpWord[3]); | |
9c2face6 | 1424 | if (!iocbq->context2) |
76bb24ef JS |
1425 | lpfc_printf_log(phba, |
1426 | KERN_ERR, | |
1427 | LOG_SLI, | |
1428 | "0343 Ring %d Cannot find " | |
1429 | "buffer for an unsolicited iocb" | |
1430 | ". tag 0x%x\n", pring->ringno, | |
92d7f7b0 | 1431 | irsp->un.ulpWord[3]); |
76bb24ef JS |
1432 | } |
1433 | if (irsp->ulpBdeCount == 2) { | |
1434 | iocbq->context3 = lpfc_sli_get_buff(phba, pring, | |
51ef4c26 | 1435 | irsp->unsli3.sli3Words[7]); |
9c2face6 | 1436 | if (!iocbq->context3) |
76bb24ef JS |
1437 | lpfc_printf_log(phba, |
1438 | KERN_ERR, | |
1439 | LOG_SLI, | |
1440 | "0344 Ring %d Cannot find " | |
1441 | "buffer for an unsolicited " | |
1442 | "iocb. tag 0x%x\n", | |
1443 | pring->ringno, | |
1444 | irsp->unsli3.sli3Words[7]); | |
1445 | } | |
1446 | } | |
92d7f7b0 | 1447 | } |
9c2face6 JS |
1448 | if (irsp->ulpBdeCount != 0 && |
1449 | (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX || | |
1450 | irsp->ulpStatus == IOSTAT_INTERMED_RSP)) { | |
1451 | int found = 0; | |
1452 | ||
1453 | /* search continue save q for same XRI */ | |
1454 | list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) { | |
1455 | if (iocbq->iocb.ulpContext == saveq->iocb.ulpContext) { | |
1456 | list_add_tail(&saveq->list, &iocbq->list); | |
1457 | found = 1; | |
1458 | break; | |
1459 | } | |
1460 | } | |
1461 | if (!found) | |
1462 | list_add_tail(&saveq->clist, | |
1463 | &pring->iocb_continue_saveq); | |
1464 | if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) { | |
1465 | list_del_init(&iocbq->clist); | |
1466 | saveq = iocbq; | |
1467 | irsp = &(saveq->iocb); | |
1468 | } else | |
1469 | return 0; | |
1470 | } | |
1471 | if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) || | |
1472 | (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) || | |
1473 | (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) { | |
1474 | Rctl = FC_ELS_REQ; | |
1475 | Type = FC_ELS_DATA; | |
1476 | } else { | |
1477 | w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]); | |
1478 | Rctl = w5p->hcsw.Rctl; | |
1479 | Type = w5p->hcsw.Type; | |
1480 | ||
1481 | /* Firmware Workaround */ | |
1482 | if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) && | |
1483 | (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX || | |
1484 | irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) { | |
1485 | Rctl = FC_ELS_REQ; | |
1486 | Type = FC_ELS_DATA; | |
1487 | w5p->hcsw.Rctl = Rctl; | |
1488 | w5p->hcsw.Type = Type; | |
1489 | } | |
1490 | } | |
92d7f7b0 | 1491 | |
dea3101e | 1492 | /* unSolicited Responses */ |
1493 | if (pring->prt[0].profile) { | |
cf5bf97e JW |
1494 | if (pring->prt[0].lpfc_sli_rcv_unsol_event) |
1495 | (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring, | |
1496 | saveq); | |
dea3101e | 1497 | match = 1; |
1498 | } else { | |
1499 | /* We must search, based on rctl / type | |
1500 | for the right routine */ | |
9c2face6 JS |
1501 | for (i = 0; i < pring->num_mask; i++) { |
1502 | if ((pring->prt[i].rctl == Rctl) | |
1503 | && (pring->prt[i].type == Type)) { | |
cf5bf97e JW |
1504 | if (pring->prt[i].lpfc_sli_rcv_unsol_event) |
1505 | (pring->prt[i].lpfc_sli_rcv_unsol_event) | |
1506 | (phba, pring, saveq); | |
dea3101e | 1507 | match = 1; |
1508 | break; | |
1509 | } | |
1510 | } | |
1511 | } | |
1512 | if (match == 0) { | |
1513 | /* Unexpected Rctl / Type received */ | |
1514 | /* Ring <ringno> handler: unexpected | |
1515 | Rctl <Rctl> Type <Type> received */ | |
92d7f7b0 | 1516 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
e8b62011 | 1517 | "0313 Ring %d handler: unexpected Rctl x%x " |
92d7f7b0 | 1518 | "Type x%x received\n", |
e8b62011 | 1519 | pring->ringno, Rctl, Type); |
dea3101e | 1520 | } |
92d7f7b0 | 1521 | return 1; |
dea3101e | 1522 | } |
1523 | ||
e59058c4 JS |
1524 | /** |
1525 | * lpfc_sli_iocbq_lookup: Find command iocb for the given response iocb. | |
1526 | * @phba: Pointer to HBA context object. | |
1527 | * @pring: Pointer to driver SLI ring object. | |
1528 | * @prspiocb: Pointer to response iocb object. | |
1529 | * | |
1530 | * This function looks up the iocb_lookup table to get the command iocb | |
1531 | * corresponding to the given response iocb using the iotag of the | |
1532 | * response iocb. This function is called with the hbalock held. | |
1533 | * This function returns the command iocb object if it finds the command | |
1534 | * iocb else returns NULL. | |
1535 | **/ | |
dea3101e | 1536 | static struct lpfc_iocbq * |
2e0fef85 JS |
1537 | lpfc_sli_iocbq_lookup(struct lpfc_hba *phba, |
1538 | struct lpfc_sli_ring *pring, | |
1539 | struct lpfc_iocbq *prspiocb) | |
dea3101e | 1540 | { |
dea3101e | 1541 | struct lpfc_iocbq *cmd_iocb = NULL; |
1542 | uint16_t iotag; | |
1543 | ||
604a3e30 JB |
1544 | iotag = prspiocb->iocb.ulpIoTag; |
1545 | ||
1546 | if (iotag != 0 && iotag <= phba->sli.last_iotag) { | |
1547 | cmd_iocb = phba->sli.iocbq_lookup[iotag]; | |
92d7f7b0 | 1548 | list_del_init(&cmd_iocb->list); |
604a3e30 JB |
1549 | pring->txcmplq_cnt--; |
1550 | return cmd_iocb; | |
dea3101e | 1551 | } |
1552 | ||
dea3101e | 1553 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 | 1554 | "0317 iotag x%x is out off " |
604a3e30 | 1555 | "range: max iotag x%x wd0 x%x\n", |
e8b62011 | 1556 | iotag, phba->sli.last_iotag, |
604a3e30 | 1557 | *(((uint32_t *) &prspiocb->iocb) + 7)); |
dea3101e | 1558 | return NULL; |
1559 | } | |
1560 | ||
e59058c4 JS |
1561 | /** |
1562 | * lpfc_sli_process_sol_iocb: process solicited iocb completion. | |
1563 | * @phba: Pointer to HBA context object. | |
1564 | * @pring: Pointer to driver SLI ring object. | |
1565 | * @saveq: Pointer to the response iocb to be processed. | |
1566 | * | |
1567 | * This function is called by the ring event handler for non-fcp | |
1568 | * rings when there is a new response iocb in the response ring. | |
1569 | * The caller is not required to hold any locks. This function | |
1570 | * gets the command iocb associated with the response iocb and | |
1571 | * calls the completion handler for the command iocb. If there | |
1572 | * is no completion handler, the function will free the resources | |
1573 | * associated with command iocb. If the response iocb is for | |
1574 | * an already aborted command iocb, the status of the completion | |
1575 | * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED. | |
1576 | * This function always returns 1. | |
1577 | **/ | |
dea3101e | 1578 | static int |
2e0fef85 | 1579 | lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
dea3101e | 1580 | struct lpfc_iocbq *saveq) |
1581 | { | |
2e0fef85 | 1582 | struct lpfc_iocbq *cmdiocbp; |
dea3101e | 1583 | int rc = 1; |
1584 | unsigned long iflag; | |
1585 | ||
1586 | /* Based on the iotag field, get the cmd IOCB from the txcmplq */ | |
2e0fef85 | 1587 | spin_lock_irqsave(&phba->hbalock, iflag); |
604a3e30 | 1588 | cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq); |
2e0fef85 JS |
1589 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
1590 | ||
dea3101e | 1591 | if (cmdiocbp) { |
1592 | if (cmdiocbp->iocb_cmpl) { | |
1593 | /* | |
1594 | * Post all ELS completions to the worker thread. | |
1595 | * All other are passed to the completion callback. | |
1596 | */ | |
1597 | if (pring->ringno == LPFC_ELS_RING) { | |
07951076 JS |
1598 | if (cmdiocbp->iocb_flag & LPFC_DRIVER_ABORTED) { |
1599 | cmdiocbp->iocb_flag &= | |
1600 | ~LPFC_DRIVER_ABORTED; | |
1601 | saveq->iocb.ulpStatus = | |
1602 | IOSTAT_LOCAL_REJECT; | |
1603 | saveq->iocb.un.ulpWord[4] = | |
1604 | IOERR_SLI_ABORTED; | |
0ff10d46 JS |
1605 | |
1606 | /* Firmware could still be in progress | |
1607 | * of DMAing payload, so don't free data | |
1608 | * buffer till after a hbeat. | |
1609 | */ | |
1610 | saveq->iocb_flag |= LPFC_DELAY_MEM_FREE; | |
07951076 | 1611 | } |
dea3101e | 1612 | } |
2e0fef85 | 1613 | (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq); |
604a3e30 JB |
1614 | } else |
1615 | lpfc_sli_release_iocbq(phba, cmdiocbp); | |
dea3101e | 1616 | } else { |
1617 | /* | |
1618 | * Unknown initiating command based on the response iotag. | |
1619 | * This could be the case on the ELS ring because of | |
1620 | * lpfc_els_abort(). | |
1621 | */ | |
1622 | if (pring->ringno != LPFC_ELS_RING) { | |
1623 | /* | |
1624 | * Ring <ringno> handler: unexpected completion IoTag | |
1625 | * <IoTag> | |
1626 | */ | |
e8b62011 JS |
1627 | lpfc_printf_vlog(cmdiocbp->vport, KERN_WARNING, LOG_SLI, |
1628 | "0322 Ring %d handler: " | |
1629 | "unexpected completion IoTag x%x " | |
1630 | "Data: x%x x%x x%x x%x\n", | |
1631 | pring->ringno, | |
1632 | saveq->iocb.ulpIoTag, | |
1633 | saveq->iocb.ulpStatus, | |
1634 | saveq->iocb.un.ulpWord[4], | |
1635 | saveq->iocb.ulpCommand, | |
1636 | saveq->iocb.ulpContext); | |
dea3101e | 1637 | } |
1638 | } | |
68876920 | 1639 | |
dea3101e | 1640 | return rc; |
1641 | } | |
1642 | ||
e59058c4 JS |
1643 | /** |
1644 | * lpfc_sli_rsp_pointers_error: Response ring pointer error handler. | |
1645 | * @phba: Pointer to HBA context object. | |
1646 | * @pring: Pointer to driver SLI ring object. | |
1647 | * | |
1648 | * This function is called from the iocb ring event handlers when | |
1649 | * put pointer is ahead of the get pointer for a ring. This function signal | |
1650 | * an error attention condition to the worker thread and the worker | |
1651 | * thread will transition the HBA to offline state. | |
1652 | **/ | |
2e0fef85 JS |
1653 | static void |
1654 | lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
875fbdfe | 1655 | { |
34b02dcd | 1656 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
875fbdfe JSEC |
1657 | /* |
1658 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger then | |
1659 | * rsp ring <portRspMax> | |
1660 | */ | |
1661 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 1662 | "0312 Ring %d handler: portRspPut %d " |
875fbdfe | 1663 | "is bigger then rsp ring %d\n", |
e8b62011 | 1664 | pring->ringno, le32_to_cpu(pgp->rspPutInx), |
875fbdfe JSEC |
1665 | pring->numRiocb); |
1666 | ||
2e0fef85 | 1667 | phba->link_state = LPFC_HBA_ERROR; |
875fbdfe JSEC |
1668 | |
1669 | /* | |
1670 | * All error attention handlers are posted to | |
1671 | * worker thread | |
1672 | */ | |
1673 | phba->work_ha |= HA_ERATT; | |
1674 | phba->work_hs = HS_FFER3; | |
92d7f7b0 | 1675 | |
5e9d9b82 | 1676 | lpfc_worker_wake_up(phba); |
875fbdfe JSEC |
1677 | |
1678 | return; | |
1679 | } | |
1680 | ||
e59058c4 JS |
1681 | /** |
1682 | * lpfc_sli_poll_fcp_ring: Handle FCP ring completion in polling mode. | |
1683 | * @phba: Pointer to HBA context object. | |
1684 | * | |
1685 | * This function is called from lpfc_queuecommand, lpfc_poll_timeout, | |
1686 | * lpfc_abort_handler and lpfc_slave_configure when FCP_RING_POLLING | |
1687 | * is enabled. | |
1688 | * | |
1689 | * The caller does not hold any lock. | |
1690 | * The function processes each response iocb in the response ring until it | |
1691 | * finds an iocb with LE bit set and chains all the iocbs upto the iocb with | |
1692 | * LE bit set. The function will call the completion handler of the command iocb | |
1693 | * if the response iocb indicates a completion for a command iocb or it is | |
1694 | * an abort completion. | |
1695 | **/ | |
2e0fef85 | 1696 | void lpfc_sli_poll_fcp_ring(struct lpfc_hba *phba) |
875fbdfe | 1697 | { |
2e0fef85 JS |
1698 | struct lpfc_sli *psli = &phba->sli; |
1699 | struct lpfc_sli_ring *pring = &psli->ring[LPFC_FCP_RING]; | |
875fbdfe JSEC |
1700 | IOCB_t *irsp = NULL; |
1701 | IOCB_t *entry = NULL; | |
1702 | struct lpfc_iocbq *cmdiocbq = NULL; | |
1703 | struct lpfc_iocbq rspiocbq; | |
34b02dcd | 1704 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
875fbdfe JSEC |
1705 | uint32_t status; |
1706 | uint32_t portRspPut, portRspMax; | |
1707 | int type; | |
1708 | uint32_t rsp_cmpl = 0; | |
875fbdfe | 1709 | uint32_t ha_copy; |
2e0fef85 | 1710 | unsigned long iflags; |
875fbdfe JSEC |
1711 | |
1712 | pring->stats.iocb_event++; | |
1713 | ||
875fbdfe JSEC |
1714 | /* |
1715 | * The next available response entry should never exceed the maximum | |
1716 | * entries. If it does, treat it as an adapter hardware error. | |
1717 | */ | |
1718 | portRspMax = pring->numRiocb; | |
1719 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1720 | if (unlikely(portRspPut >= portRspMax)) { | |
1721 | lpfc_sli_rsp_pointers_error(phba, pring); | |
1722 | return; | |
1723 | } | |
1724 | ||
1725 | rmb(); | |
1726 | while (pring->rspidx != portRspPut) { | |
ed957684 | 1727 | entry = lpfc_resp_iocb(phba, pring); |
875fbdfe JSEC |
1728 | if (++pring->rspidx >= portRspMax) |
1729 | pring->rspidx = 0; | |
1730 | ||
1731 | lpfc_sli_pcimem_bcopy((uint32_t *) entry, | |
1732 | (uint32_t *) &rspiocbq.iocb, | |
92d7f7b0 | 1733 | phba->iocb_rsp_size); |
875fbdfe JSEC |
1734 | irsp = &rspiocbq.iocb; |
1735 | type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); | |
1736 | pring->stats.iocb_rsp++; | |
1737 | rsp_cmpl++; | |
1738 | ||
1739 | if (unlikely(irsp->ulpStatus)) { | |
1740 | /* Rsp ring <ringno> error: IOCB */ | |
1741 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
e8b62011 | 1742 | "0326 Rsp Ring %d error: IOCB Data: " |
875fbdfe | 1743 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", |
e8b62011 | 1744 | pring->ringno, |
875fbdfe JSEC |
1745 | irsp->un.ulpWord[0], |
1746 | irsp->un.ulpWord[1], | |
1747 | irsp->un.ulpWord[2], | |
1748 | irsp->un.ulpWord[3], | |
1749 | irsp->un.ulpWord[4], | |
1750 | irsp->un.ulpWord[5], | |
1751 | *(((uint32_t *) irsp) + 6), | |
1752 | *(((uint32_t *) irsp) + 7)); | |
1753 | } | |
1754 | ||
1755 | switch (type) { | |
1756 | case LPFC_ABORT_IOCB: | |
1757 | case LPFC_SOL_IOCB: | |
1758 | /* | |
1759 | * Idle exchange closed via ABTS from port. No iocb | |
1760 | * resources need to be recovered. | |
1761 | */ | |
1762 | if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { | |
dca9479b | 1763 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
e8b62011 JS |
1764 | "0314 IOCB cmd 0x%x " |
1765 | "processed. Skipping " | |
1766 | "completion", | |
dca9479b | 1767 | irsp->ulpCommand); |
875fbdfe JSEC |
1768 | break; |
1769 | } | |
1770 | ||
2e0fef85 | 1771 | spin_lock_irqsave(&phba->hbalock, iflags); |
875fbdfe JSEC |
1772 | cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, |
1773 | &rspiocbq); | |
2e0fef85 | 1774 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
875fbdfe JSEC |
1775 | if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { |
1776 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, | |
1777 | &rspiocbq); | |
1778 | } | |
1779 | break; | |
1780 | default: | |
1781 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
1782 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
1783 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
1784 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
1785 | MAX_MSG_DATA); | |
898eb71c JP |
1786 | dev_warn(&((phba->pcidev)->dev), |
1787 | "lpfc%d: %s\n", | |
875fbdfe JSEC |
1788 | phba->brd_no, adaptermsg); |
1789 | } else { | |
1790 | /* Unknown IOCB command */ | |
1791 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 1792 | "0321 Unknown IOCB command " |
875fbdfe | 1793 | "Data: x%x, x%x x%x x%x x%x\n", |
e8b62011 | 1794 | type, irsp->ulpCommand, |
875fbdfe JSEC |
1795 | irsp->ulpStatus, |
1796 | irsp->ulpIoTag, | |
1797 | irsp->ulpContext); | |
1798 | } | |
1799 | break; | |
1800 | } | |
1801 | ||
1802 | /* | |
1803 | * The response IOCB has been processed. Update the ring | |
1804 | * pointer in SLIM. If the port response put pointer has not | |
1805 | * been updated, sync the pgp->rspPutInx and fetch the new port | |
1806 | * response put pointer. | |
1807 | */ | |
ed957684 | 1808 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); |
875fbdfe JSEC |
1809 | |
1810 | if (pring->rspidx == portRspPut) | |
1811 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1812 | } | |
1813 | ||
1814 | ha_copy = readl(phba->HAregaddr); | |
1815 | ha_copy >>= (LPFC_FCP_RING * 4); | |
1816 | ||
1817 | if ((rsp_cmpl > 0) && (ha_copy & HA_R0RE_REQ)) { | |
2e0fef85 | 1818 | spin_lock_irqsave(&phba->hbalock, iflags); |
875fbdfe JSEC |
1819 | pring->stats.iocb_rsp_full++; |
1820 | status = ((CA_R0ATT | CA_R0RE_RSP) << (LPFC_FCP_RING * 4)); | |
1821 | writel(status, phba->CAregaddr); | |
1822 | readl(phba->CAregaddr); | |
2e0fef85 | 1823 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
875fbdfe JSEC |
1824 | } |
1825 | if ((ha_copy & HA_R0CE_RSP) && | |
1826 | (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2e0fef85 | 1827 | spin_lock_irqsave(&phba->hbalock, iflags); |
875fbdfe JSEC |
1828 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; |
1829 | pring->stats.iocb_cmd_empty++; | |
1830 | ||
1831 | /* Force update of the local copy of cmdGetInx */ | |
1832 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
1833 | lpfc_sli_resume_iocb(phba, pring); | |
1834 | ||
1835 | if ((pring->lpfc_sli_cmd_available)) | |
1836 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
1837 | ||
2e0fef85 | 1838 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
875fbdfe JSEC |
1839 | } |
1840 | ||
1841 | return; | |
1842 | } | |
1843 | ||
e59058c4 JS |
1844 | /** |
1845 | * lpfc_sli_handle_fast_ring_event: Handle ring events on FCP ring. | |
1846 | * @phba: Pointer to HBA context object. | |
1847 | * @pring: Pointer to driver SLI ring object. | |
1848 | * @mask: Host attention register mask for this ring. | |
1849 | * | |
1850 | * This function is called from the interrupt context when there is a ring | |
1851 | * event for the fcp ring. The caller does not hold any lock. | |
1852 | * The function processes each response iocb in the response ring until it | |
1853 | * finds an iocb with LE bit set and chains all the iocbs upto the iocb with | |
1854 | * LE bit set. The function will call the completion handler of the command iocb | |
1855 | * if the response iocb indicates a completion for a command iocb or it is | |
1856 | * an abort completion. The function will call lpfc_sli_process_unsol_iocb | |
1857 | * function if this is an unsolicited iocb. | |
dea3101e | 1858 | * This routine presumes LPFC_FCP_RING handling and doesn't bother |
e59058c4 JS |
1859 | * to check it explicitly. This function always returns 1. |
1860 | **/ | |
dea3101e | 1861 | static int |
2e0fef85 JS |
1862 | lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba, |
1863 | struct lpfc_sli_ring *pring, uint32_t mask) | |
dea3101e | 1864 | { |
34b02dcd | 1865 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
dea3101e | 1866 | IOCB_t *irsp = NULL; |
87f6eaff | 1867 | IOCB_t *entry = NULL; |
dea3101e | 1868 | struct lpfc_iocbq *cmdiocbq = NULL; |
1869 | struct lpfc_iocbq rspiocbq; | |
dea3101e | 1870 | uint32_t status; |
1871 | uint32_t portRspPut, portRspMax; | |
1872 | int rc = 1; | |
1873 | lpfc_iocb_type type; | |
1874 | unsigned long iflag; | |
1875 | uint32_t rsp_cmpl = 0; | |
dea3101e | 1876 | |
2e0fef85 | 1877 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e | 1878 | pring->stats.iocb_event++; |
1879 | ||
dea3101e | 1880 | /* |
1881 | * The next available response entry should never exceed the maximum | |
1882 | * entries. If it does, treat it as an adapter hardware error. | |
1883 | */ | |
1884 | portRspMax = pring->numRiocb; | |
1885 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1886 | if (unlikely(portRspPut >= portRspMax)) { | |
875fbdfe | 1887 | lpfc_sli_rsp_pointers_error(phba, pring); |
2e0fef85 | 1888 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 1889 | return 1; |
1890 | } | |
1891 | ||
1892 | rmb(); | |
1893 | while (pring->rspidx != portRspPut) { | |
87f6eaff JSEC |
1894 | /* |
1895 | * Fetch an entry off the ring and copy it into a local data | |
1896 | * structure. The copy involves a byte-swap since the | |
1897 | * network byte order and pci byte orders are different. | |
1898 | */ | |
ed957684 | 1899 | entry = lpfc_resp_iocb(phba, pring); |
858c9f6c | 1900 | phba->last_completion_time = jiffies; |
875fbdfe JSEC |
1901 | |
1902 | if (++pring->rspidx >= portRspMax) | |
1903 | pring->rspidx = 0; | |
1904 | ||
87f6eaff JSEC |
1905 | lpfc_sli_pcimem_bcopy((uint32_t *) entry, |
1906 | (uint32_t *) &rspiocbq.iocb, | |
ed957684 | 1907 | phba->iocb_rsp_size); |
a4bc3379 | 1908 | INIT_LIST_HEAD(&(rspiocbq.list)); |
87f6eaff JSEC |
1909 | irsp = &rspiocbq.iocb; |
1910 | ||
dea3101e | 1911 | type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); |
1912 | pring->stats.iocb_rsp++; | |
1913 | rsp_cmpl++; | |
1914 | ||
1915 | if (unlikely(irsp->ulpStatus)) { | |
92d7f7b0 JS |
1916 | /* |
1917 | * If resource errors reported from HBA, reduce | |
1918 | * queuedepths of the SCSI device. | |
1919 | */ | |
1920 | if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
1921 | (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) { | |
1922 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
1923 | lpfc_adjust_queue_depth(phba); | |
1924 | spin_lock_irqsave(&phba->hbalock, iflag); | |
1925 | } | |
1926 | ||
dea3101e | 1927 | /* Rsp ring <ringno> error: IOCB */ |
1928 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
e8b62011 | 1929 | "0336 Rsp Ring %d error: IOCB Data: " |
92d7f7b0 | 1930 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", |
e8b62011 | 1931 | pring->ringno, |
92d7f7b0 JS |
1932 | irsp->un.ulpWord[0], |
1933 | irsp->un.ulpWord[1], | |
1934 | irsp->un.ulpWord[2], | |
1935 | irsp->un.ulpWord[3], | |
1936 | irsp->un.ulpWord[4], | |
1937 | irsp->un.ulpWord[5], | |
1938 | *(((uint32_t *) irsp) + 6), | |
1939 | *(((uint32_t *) irsp) + 7)); | |
dea3101e | 1940 | } |
1941 | ||
1942 | switch (type) { | |
1943 | case LPFC_ABORT_IOCB: | |
1944 | case LPFC_SOL_IOCB: | |
1945 | /* | |
1946 | * Idle exchange closed via ABTS from port. No iocb | |
1947 | * resources need to be recovered. | |
1948 | */ | |
1949 | if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { | |
dca9479b | 1950 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
e8b62011 | 1951 | "0333 IOCB cmd 0x%x" |
dca9479b | 1952 | " processed. Skipping" |
92d7f7b0 | 1953 | " completion\n", |
dca9479b | 1954 | irsp->ulpCommand); |
dea3101e | 1955 | break; |
1956 | } | |
1957 | ||
604a3e30 JB |
1958 | cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, |
1959 | &rspiocbq); | |
dea3101e | 1960 | if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { |
b808608b JW |
1961 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { |
1962 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, | |
1963 | &rspiocbq); | |
1964 | } else { | |
2e0fef85 JS |
1965 | spin_unlock_irqrestore(&phba->hbalock, |
1966 | iflag); | |
b808608b JW |
1967 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, |
1968 | &rspiocbq); | |
2e0fef85 | 1969 | spin_lock_irqsave(&phba->hbalock, |
b808608b JW |
1970 | iflag); |
1971 | } | |
dea3101e | 1972 | } |
1973 | break; | |
a4bc3379 | 1974 | case LPFC_UNSOL_IOCB: |
2e0fef85 | 1975 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
a4bc3379 | 1976 | lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq); |
2e0fef85 | 1977 | spin_lock_irqsave(&phba->hbalock, iflag); |
a4bc3379 | 1978 | break; |
dea3101e | 1979 | default: |
1980 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
1981 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
1982 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
1983 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
1984 | MAX_MSG_DATA); | |
898eb71c JP |
1985 | dev_warn(&((phba->pcidev)->dev), |
1986 | "lpfc%d: %s\n", | |
dea3101e | 1987 | phba->brd_no, adaptermsg); |
1988 | } else { | |
1989 | /* Unknown IOCB command */ | |
1990 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 1991 | "0334 Unknown IOCB command " |
92d7f7b0 | 1992 | "Data: x%x, x%x x%x x%x x%x\n", |
e8b62011 | 1993 | type, irsp->ulpCommand, |
92d7f7b0 JS |
1994 | irsp->ulpStatus, |
1995 | irsp->ulpIoTag, | |
1996 | irsp->ulpContext); | |
dea3101e | 1997 | } |
1998 | break; | |
1999 | } | |
2000 | ||
2001 | /* | |
2002 | * The response IOCB has been processed. Update the ring | |
2003 | * pointer in SLIM. If the port response put pointer has not | |
2004 | * been updated, sync the pgp->rspPutInx and fetch the new port | |
2005 | * response put pointer. | |
2006 | */ | |
ed957684 | 2007 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); |
dea3101e | 2008 | |
2009 | if (pring->rspidx == portRspPut) | |
2010 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2011 | } | |
2012 | ||
2013 | if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) { | |
2014 | pring->stats.iocb_rsp_full++; | |
2015 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
2016 | writel(status, phba->CAregaddr); | |
2017 | readl(phba->CAregaddr); | |
2018 | } | |
2019 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2020 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
2021 | pring->stats.iocb_cmd_empty++; | |
2022 | ||
2023 | /* Force update of the local copy of cmdGetInx */ | |
2024 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
2025 | lpfc_sli_resume_iocb(phba, pring); | |
2026 | ||
2027 | if ((pring->lpfc_sli_cmd_available)) | |
2028 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
2029 | ||
2030 | } | |
2031 | ||
2e0fef85 | 2032 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 2033 | return rc; |
2034 | } | |
2035 | ||
e59058c4 JS |
2036 | /** |
2037 | * lpfc_sli_handle_slow_ring_event: Handle ring events for non-FCP rings. | |
2038 | * @phba: Pointer to HBA context object. | |
2039 | * @pring: Pointer to driver SLI ring object. | |
2040 | * @mask: Host attention register mask for this ring. | |
2041 | * | |
2042 | * This function is called from the worker thread when there is a ring | |
2043 | * event for non-fcp rings. The caller does not hold any lock . | |
2044 | * The function processes each response iocb in the response ring until it | |
2045 | * finds an iocb with LE bit set and chains all the iocbs upto the iocb with | |
2046 | * LE bit set. The function will call lpfc_sli_process_sol_iocb function if the | |
2047 | * response iocb indicates a completion of a command iocb. The function | |
2048 | * will call lpfc_sli_process_unsol_iocb function if this is an unsolicited | |
2049 | * iocb. The function frees the resources or calls the completion handler if | |
2050 | * this iocb is an abort completion. The function returns 0 when the allocated | |
2051 | * iocbs are not freed, otherwise returns 1. | |
2052 | **/ | |
dea3101e | 2053 | int |
2e0fef85 JS |
2054 | lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba, |
2055 | struct lpfc_sli_ring *pring, uint32_t mask) | |
dea3101e | 2056 | { |
34b02dcd | 2057 | struct lpfc_pgp *pgp; |
dea3101e | 2058 | IOCB_t *entry; |
2059 | IOCB_t *irsp = NULL; | |
2060 | struct lpfc_iocbq *rspiocbp = NULL; | |
2061 | struct lpfc_iocbq *next_iocb; | |
2062 | struct lpfc_iocbq *cmdiocbp; | |
2063 | struct lpfc_iocbq *saveq; | |
dea3101e | 2064 | uint8_t iocb_cmd_type; |
2065 | lpfc_iocb_type type; | |
2066 | uint32_t status, free_saveq; | |
2067 | uint32_t portRspPut, portRspMax; | |
2068 | int rc = 1; | |
2069 | unsigned long iflag; | |
dea3101e | 2070 | |
34b02dcd | 2071 | pgp = &phba->port_gp[pring->ringno]; |
2e0fef85 | 2072 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e | 2073 | pring->stats.iocb_event++; |
2074 | ||
dea3101e | 2075 | /* |
2076 | * The next available response entry should never exceed the maximum | |
2077 | * entries. If it does, treat it as an adapter hardware error. | |
2078 | */ | |
2079 | portRspMax = pring->numRiocb; | |
2080 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2081 | if (portRspPut >= portRspMax) { | |
2082 | /* | |
2083 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger then | |
2084 | * rsp ring <portRspMax> | |
2085 | */ | |
ed957684 | 2086 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 | 2087 | "0303 Ring %d handler: portRspPut %d " |
dea3101e | 2088 | "is bigger then rsp ring %d\n", |
e8b62011 | 2089 | pring->ringno, portRspPut, portRspMax); |
dea3101e | 2090 | |
2e0fef85 JS |
2091 | phba->link_state = LPFC_HBA_ERROR; |
2092 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
dea3101e | 2093 | |
2094 | phba->work_hs = HS_FFER3; | |
2095 | lpfc_handle_eratt(phba); | |
2096 | ||
2097 | return 1; | |
2098 | } | |
2099 | ||
2100 | rmb(); | |
dea3101e | 2101 | while (pring->rspidx != portRspPut) { |
2102 | /* | |
2103 | * Build a completion list and call the appropriate handler. | |
2104 | * The process is to get the next available response iocb, get | |
2105 | * a free iocb from the list, copy the response data into the | |
2106 | * free iocb, insert to the continuation list, and update the | |
2107 | * next response index to slim. This process makes response | |
2108 | * iocb's in the ring available to DMA as fast as possible but | |
2109 | * pays a penalty for a copy operation. Since the iocb is | |
2110 | * only 32 bytes, this penalty is considered small relative to | |
2111 | * the PCI reads for register values and a slim write. When | |
2112 | * the ulpLe field is set, the entire Command has been | |
2113 | * received. | |
2114 | */ | |
ed957684 JS |
2115 | entry = lpfc_resp_iocb(phba, pring); |
2116 | ||
858c9f6c | 2117 | phba->last_completion_time = jiffies; |
2e0fef85 | 2118 | rspiocbp = __lpfc_sli_get_iocbq(phba); |
dea3101e | 2119 | if (rspiocbp == NULL) { |
2120 | printk(KERN_ERR "%s: out of buffers! Failing " | |
cadbd4a5 | 2121 | "completion.\n", __func__); |
dea3101e | 2122 | break; |
2123 | } | |
2124 | ||
ed957684 JS |
2125 | lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb, |
2126 | phba->iocb_rsp_size); | |
dea3101e | 2127 | irsp = &rspiocbp->iocb; |
2128 | ||
2129 | if (++pring->rspidx >= portRspMax) | |
2130 | pring->rspidx = 0; | |
2131 | ||
a58cbd52 JS |
2132 | if (pring->ringno == LPFC_ELS_RING) { |
2133 | lpfc_debugfs_slow_ring_trc(phba, | |
2134 | "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x", | |
2135 | *(((uint32_t *) irsp) + 4), | |
2136 | *(((uint32_t *) irsp) + 6), | |
2137 | *(((uint32_t *) irsp) + 7)); | |
2138 | } | |
2139 | ||
ed957684 | 2140 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); |
dea3101e | 2141 | |
9c2face6 | 2142 | list_add_tail(&rspiocbp->list, &(pring->iocb_continueq)); |
dea3101e | 2143 | |
2144 | pring->iocb_continueq_cnt++; | |
2145 | if (irsp->ulpLe) { | |
2146 | /* | |
2147 | * By default, the driver expects to free all resources | |
2148 | * associated with this iocb completion. | |
2149 | */ | |
2150 | free_saveq = 1; | |
2151 | saveq = list_get_first(&pring->iocb_continueq, | |
2152 | struct lpfc_iocbq, list); | |
2153 | irsp = &(saveq->iocb); | |
2154 | list_del_init(&pring->iocb_continueq); | |
2155 | pring->iocb_continueq_cnt = 0; | |
2156 | ||
2157 | pring->stats.iocb_rsp++; | |
2158 | ||
92d7f7b0 JS |
2159 | /* |
2160 | * If resource errors reported from HBA, reduce | |
2161 | * queuedepths of the SCSI device. | |
2162 | */ | |
2163 | if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
2164 | (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) { | |
2165 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2166 | lpfc_adjust_queue_depth(phba); | |
2167 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2168 | } | |
2169 | ||
dea3101e | 2170 | if (irsp->ulpStatus) { |
2171 | /* Rsp ring <ringno> error: IOCB */ | |
ed957684 | 2172 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
e8b62011 | 2173 | "0328 Rsp Ring %d error: " |
ed957684 JS |
2174 | "IOCB Data: " |
2175 | "x%x x%x x%x x%x " | |
2176 | "x%x x%x x%x x%x " | |
2177 | "x%x x%x x%x x%x " | |
2178 | "x%x x%x x%x x%x\n", | |
ed957684 JS |
2179 | pring->ringno, |
2180 | irsp->un.ulpWord[0], | |
2181 | irsp->un.ulpWord[1], | |
2182 | irsp->un.ulpWord[2], | |
2183 | irsp->un.ulpWord[3], | |
2184 | irsp->un.ulpWord[4], | |
2185 | irsp->un.ulpWord[5], | |
2186 | *(((uint32_t *) irsp) + 6), | |
2187 | *(((uint32_t *) irsp) + 7), | |
2188 | *(((uint32_t *) irsp) + 8), | |
2189 | *(((uint32_t *) irsp) + 9), | |
2190 | *(((uint32_t *) irsp) + 10), | |
2191 | *(((uint32_t *) irsp) + 11), | |
2192 | *(((uint32_t *) irsp) + 12), | |
2193 | *(((uint32_t *) irsp) + 13), | |
2194 | *(((uint32_t *) irsp) + 14), | |
2195 | *(((uint32_t *) irsp) + 15)); | |
dea3101e | 2196 | } |
2197 | ||
2198 | /* | |
2199 | * Fetch the IOCB command type and call the correct | |
2200 | * completion routine. Solicited and Unsolicited | |
2201 | * IOCBs on the ELS ring get freed back to the | |
2202 | * lpfc_iocb_list by the discovery kernel thread. | |
2203 | */ | |
2204 | iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK; | |
2205 | type = lpfc_sli_iocb_cmd_type(iocb_cmd_type); | |
2206 | if (type == LPFC_SOL_IOCB) { | |
9c2face6 | 2207 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 2208 | rc = lpfc_sli_process_sol_iocb(phba, pring, |
2e0fef85 JS |
2209 | saveq); |
2210 | spin_lock_irqsave(&phba->hbalock, iflag); | |
dea3101e | 2211 | } else if (type == LPFC_UNSOL_IOCB) { |
9c2face6 | 2212 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 2213 | rc = lpfc_sli_process_unsol_iocb(phba, pring, |
2e0fef85 JS |
2214 | saveq); |
2215 | spin_lock_irqsave(&phba->hbalock, iflag); | |
9c2face6 JS |
2216 | if (!rc) |
2217 | free_saveq = 0; | |
dea3101e | 2218 | } else if (type == LPFC_ABORT_IOCB) { |
2219 | if ((irsp->ulpCommand != CMD_XRI_ABORTED_CX) && | |
2220 | ((cmdiocbp = | |
604a3e30 JB |
2221 | lpfc_sli_iocbq_lookup(phba, pring, |
2222 | saveq)))) { | |
dea3101e | 2223 | /* Call the specified completion |
2224 | routine */ | |
2225 | if (cmdiocbp->iocb_cmpl) { | |
2226 | spin_unlock_irqrestore( | |
2e0fef85 | 2227 | &phba->hbalock, |
dea3101e | 2228 | iflag); |
2229 | (cmdiocbp->iocb_cmpl) (phba, | |
2230 | cmdiocbp, saveq); | |
2231 | spin_lock_irqsave( | |
2e0fef85 | 2232 | &phba->hbalock, |
dea3101e | 2233 | iflag); |
604a3e30 | 2234 | } else |
2e0fef85 | 2235 | __lpfc_sli_release_iocbq(phba, |
604a3e30 | 2236 | cmdiocbp); |
dea3101e | 2237 | } |
2238 | } else if (type == LPFC_UNKNOWN_IOCB) { | |
2239 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
2240 | ||
2241 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
2242 | ||
2243 | memset(adaptermsg, 0, | |
2244 | LPFC_MAX_ADPTMSG); | |
2245 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
2246 | MAX_MSG_DATA); | |
2247 | dev_warn(&((phba->pcidev)->dev), | |
898eb71c | 2248 | "lpfc%d: %s\n", |
dea3101e | 2249 | phba->brd_no, adaptermsg); |
2250 | } else { | |
2251 | /* Unknown IOCB command */ | |
92d7f7b0 | 2252 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 | 2253 | "0335 Unknown IOCB " |
92d7f7b0 JS |
2254 | "command Data: x%x " |
2255 | "x%x x%x x%x\n", | |
92d7f7b0 JS |
2256 | irsp->ulpCommand, |
2257 | irsp->ulpStatus, | |
2258 | irsp->ulpIoTag, | |
2259 | irsp->ulpContext); | |
dea3101e | 2260 | } |
2261 | } | |
2262 | ||
2263 | if (free_saveq) { | |
2e0fef85 JS |
2264 | list_for_each_entry_safe(rspiocbp, next_iocb, |
2265 | &saveq->list, list) { | |
2266 | list_del(&rspiocbp->list); | |
2267 | __lpfc_sli_release_iocbq(phba, | |
2268 | rspiocbp); | |
dea3101e | 2269 | } |
2e0fef85 | 2270 | __lpfc_sli_release_iocbq(phba, saveq); |
dea3101e | 2271 | } |
92d7f7b0 | 2272 | rspiocbp = NULL; |
dea3101e | 2273 | } |
2274 | ||
2275 | /* | |
2276 | * If the port response put pointer has not been updated, sync | |
2277 | * the pgp->rspPutInx in the MAILBOX_tand fetch the new port | |
2278 | * response put pointer. | |
2279 | */ | |
2280 | if (pring->rspidx == portRspPut) { | |
2281 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2282 | } | |
2283 | } /* while (pring->rspidx != portRspPut) */ | |
2284 | ||
92d7f7b0 | 2285 | if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) { |
dea3101e | 2286 | /* At least one response entry has been freed */ |
2287 | pring->stats.iocb_rsp_full++; | |
2288 | /* SET RxRE_RSP in Chip Att register */ | |
2289 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
2290 | writel(status, phba->CAregaddr); | |
2291 | readl(phba->CAregaddr); /* flush */ | |
2292 | } | |
2293 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2294 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
2295 | pring->stats.iocb_cmd_empty++; | |
2296 | ||
2297 | /* Force update of the local copy of cmdGetInx */ | |
2298 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
2299 | lpfc_sli_resume_iocb(phba, pring); | |
2300 | ||
2301 | if ((pring->lpfc_sli_cmd_available)) | |
2302 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
2303 | ||
2304 | } | |
2305 | ||
2e0fef85 | 2306 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 2307 | return rc; |
2308 | } | |
2309 | ||
e59058c4 JS |
2310 | /** |
2311 | * lpfc_sli_abort_iocb_ring: Abort all iocbs in the ring. | |
2312 | * @phba: Pointer to HBA context object. | |
2313 | * @pring: Pointer to driver SLI ring object. | |
2314 | * | |
2315 | * This function aborts all iocbs in the given ring and frees all the iocb | |
2316 | * objects in txq. This function issues an abort iocb for all the iocb commands | |
2317 | * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before | |
2318 | * the return of this function. The caller is not required to hold any locks. | |
2319 | **/ | |
2e0fef85 | 2320 | void |
dea3101e | 2321 | lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
2322 | { | |
2534ba75 | 2323 | LIST_HEAD(completions); |
dea3101e | 2324 | struct lpfc_iocbq *iocb, *next_iocb; |
2534ba75 | 2325 | IOCB_t *cmd = NULL; |
dea3101e | 2326 | |
92d7f7b0 JS |
2327 | if (pring->ringno == LPFC_ELS_RING) { |
2328 | lpfc_fabric_abort_hba(phba); | |
2329 | } | |
2330 | ||
dea3101e | 2331 | /* Error everything on txq and txcmplq |
2332 | * First do the txq. | |
2333 | */ | |
2e0fef85 | 2334 | spin_lock_irq(&phba->hbalock); |
2534ba75 | 2335 | list_splice_init(&pring->txq, &completions); |
dea3101e | 2336 | pring->txq_cnt = 0; |
dea3101e | 2337 | |
2338 | /* Next issue ABTS for everything on the txcmplq */ | |
2534ba75 JS |
2339 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) |
2340 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); | |
dea3101e | 2341 | |
2e0fef85 | 2342 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 2343 | |
2534ba75 JS |
2344 | while (!list_empty(&completions)) { |
2345 | iocb = list_get_first(&completions, struct lpfc_iocbq, list); | |
2346 | cmd = &iocb->iocb; | |
92d7f7b0 | 2347 | list_del_init(&iocb->list); |
dea3101e | 2348 | |
2e0fef85 JS |
2349 | if (!iocb->iocb_cmpl) |
2350 | lpfc_sli_release_iocbq(phba, iocb); | |
2351 | else { | |
dea3101e | 2352 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; |
2353 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
dea3101e | 2354 | (iocb->iocb_cmpl) (phba, iocb, iocb); |
2e0fef85 | 2355 | } |
dea3101e | 2356 | } |
dea3101e | 2357 | } |
2358 | ||
e59058c4 JS |
2359 | /** |
2360 | * lpfc_sli_brdready: Check for host status bits. | |
2361 | * @phba: Pointer to HBA context object. | |
2362 | * @mask: Bit mask to be checked. | |
2363 | * | |
2364 | * This function reads the host status register and compares | |
2365 | * with the provided bit mask to check if HBA completed | |
2366 | * the restart. This function will wait in a loop for the | |
2367 | * HBA to complete restart. If the HBA does not restart within | |
2368 | * 15 iterations, the function will reset the HBA again. The | |
2369 | * function returns 1 when HBA fail to restart otherwise returns | |
2370 | * zero. | |
2371 | **/ | |
41415862 | 2372 | int |
2e0fef85 | 2373 | lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask) |
dea3101e | 2374 | { |
41415862 JW |
2375 | uint32_t status; |
2376 | int i = 0; | |
2377 | int retval = 0; | |
dea3101e | 2378 | |
41415862 JW |
2379 | /* Read the HBA Host Status Register */ |
2380 | status = readl(phba->HSregaddr); | |
dea3101e | 2381 | |
41415862 JW |
2382 | /* |
2383 | * Check status register every 100ms for 5 retries, then every | |
2384 | * 500ms for 5, then every 2.5 sec for 5, then reset board and | |
2385 | * every 2.5 sec for 4. | |
2386 | * Break our of the loop if errors occurred during init. | |
2387 | */ | |
2388 | while (((status & mask) != mask) && | |
2389 | !(status & HS_FFERM) && | |
2390 | i++ < 20) { | |
dea3101e | 2391 | |
41415862 JW |
2392 | if (i <= 5) |
2393 | msleep(10); | |
2394 | else if (i <= 10) | |
2395 | msleep(500); | |
2396 | else | |
2397 | msleep(2500); | |
dea3101e | 2398 | |
41415862 | 2399 | if (i == 15) { |
2e0fef85 | 2400 | /* Do post */ |
92d7f7b0 | 2401 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 JW |
2402 | lpfc_sli_brdrestart(phba); |
2403 | } | |
2404 | /* Read the HBA Host Status Register */ | |
2405 | status = readl(phba->HSregaddr); | |
2406 | } | |
dea3101e | 2407 | |
41415862 JW |
2408 | /* Check to see if any errors occurred during init */ |
2409 | if ((status & HS_FFERM) || (i >= 20)) { | |
2e0fef85 | 2410 | phba->link_state = LPFC_HBA_ERROR; |
41415862 | 2411 | retval = 1; |
dea3101e | 2412 | } |
dea3101e | 2413 | |
41415862 JW |
2414 | return retval; |
2415 | } | |
dea3101e | 2416 | |
9290831f JS |
2417 | #define BARRIER_TEST_PATTERN (0xdeadbeef) |
2418 | ||
e59058c4 JS |
2419 | /** |
2420 | * lpfc_reset_barrier: Make HBA ready for HBA reset. | |
2421 | * @phba: Pointer to HBA context object. | |
2422 | * | |
2423 | * This function is called before resetting an HBA. This | |
2424 | * function requests HBA to quiesce DMAs before a reset. | |
2425 | **/ | |
2e0fef85 | 2426 | void lpfc_reset_barrier(struct lpfc_hba *phba) |
9290831f | 2427 | { |
65a29c16 JS |
2428 | uint32_t __iomem *resp_buf; |
2429 | uint32_t __iomem *mbox_buf; | |
9290831f JS |
2430 | volatile uint32_t mbox; |
2431 | uint32_t hc_copy; | |
2432 | int i; | |
2433 | uint8_t hdrtype; | |
2434 | ||
2435 | pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype); | |
2436 | if (hdrtype != 0x80 || | |
2437 | (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID && | |
2438 | FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID)) | |
2439 | return; | |
2440 | ||
2441 | /* | |
2442 | * Tell the other part of the chip to suspend temporarily all | |
2443 | * its DMA activity. | |
2444 | */ | |
65a29c16 | 2445 | resp_buf = phba->MBslimaddr; |
9290831f JS |
2446 | |
2447 | /* Disable the error attention */ | |
2448 | hc_copy = readl(phba->HCregaddr); | |
2449 | writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr); | |
2450 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 | 2451 | phba->link_flag |= LS_IGNORE_ERATT; |
9290831f JS |
2452 | |
2453 | if (readl(phba->HAregaddr) & HA_ERATT) { | |
2454 | /* Clear Chip error bit */ | |
2455 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 2456 | phba->pport->stopped = 1; |
9290831f JS |
2457 | } |
2458 | ||
2459 | mbox = 0; | |
2460 | ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD; | |
2461 | ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP; | |
2462 | ||
2463 | writel(BARRIER_TEST_PATTERN, (resp_buf + 1)); | |
65a29c16 | 2464 | mbox_buf = phba->MBslimaddr; |
9290831f JS |
2465 | writel(mbox, mbox_buf); |
2466 | ||
2467 | for (i = 0; | |
2468 | readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++) | |
2469 | mdelay(1); | |
2470 | ||
2471 | if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) { | |
2472 | if (phba->sli.sli_flag & LPFC_SLI2_ACTIVE || | |
2e0fef85 | 2473 | phba->pport->stopped) |
9290831f JS |
2474 | goto restore_hc; |
2475 | else | |
2476 | goto clear_errat; | |
2477 | } | |
2478 | ||
2479 | ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST; | |
2480 | for (i = 0; readl(resp_buf) != mbox && i < 500; i++) | |
2481 | mdelay(1); | |
2482 | ||
2483 | clear_errat: | |
2484 | ||
2485 | while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500) | |
2486 | mdelay(1); | |
2487 | ||
2488 | if (readl(phba->HAregaddr) & HA_ERATT) { | |
2489 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 2490 | phba->pport->stopped = 1; |
9290831f JS |
2491 | } |
2492 | ||
2493 | restore_hc: | |
2e0fef85 | 2494 | phba->link_flag &= ~LS_IGNORE_ERATT; |
9290831f JS |
2495 | writel(hc_copy, phba->HCregaddr); |
2496 | readl(phba->HCregaddr); /* flush */ | |
2497 | } | |
2498 | ||
e59058c4 JS |
2499 | /** |
2500 | * lpfc_sli_brdkill: Issue a kill_board mailbox command. | |
2501 | * @phba: Pointer to HBA context object. | |
2502 | * | |
2503 | * This function issues a kill_board mailbox command and waits for | |
2504 | * the error attention interrupt. This function is called for stopping | |
2505 | * the firmware processing. The caller is not required to hold any | |
2506 | * locks. This function calls lpfc_hba_down_post function to free | |
2507 | * any pending commands after the kill. The function will return 1 when it | |
2508 | * fails to kill the board else will return 0. | |
2509 | **/ | |
41415862 | 2510 | int |
2e0fef85 | 2511 | lpfc_sli_brdkill(struct lpfc_hba *phba) |
41415862 JW |
2512 | { |
2513 | struct lpfc_sli *psli; | |
2514 | LPFC_MBOXQ_t *pmb; | |
2515 | uint32_t status; | |
2516 | uint32_t ha_copy; | |
2517 | int retval; | |
2518 | int i = 0; | |
dea3101e | 2519 | |
41415862 | 2520 | psli = &phba->sli; |
dea3101e | 2521 | |
41415862 | 2522 | /* Kill HBA */ |
ed957684 | 2523 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
e8b62011 JS |
2524 | "0329 Kill HBA Data: x%x x%x\n", |
2525 | phba->pport->port_state, psli->sli_flag); | |
41415862 | 2526 | |
98c9ea5c JS |
2527 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
2528 | if (!pmb) | |
41415862 | 2529 | return 1; |
41415862 JW |
2530 | |
2531 | /* Disable the error attention */ | |
2e0fef85 | 2532 | spin_lock_irq(&phba->hbalock); |
41415862 JW |
2533 | status = readl(phba->HCregaddr); |
2534 | status &= ~HC_ERINT_ENA; | |
2535 | writel(status, phba->HCregaddr); | |
2536 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 JS |
2537 | phba->link_flag |= LS_IGNORE_ERATT; |
2538 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
2539 | |
2540 | lpfc_kill_board(phba, pmb); | |
2541 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
2542 | retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
2543 | ||
2544 | if (retval != MBX_SUCCESS) { | |
2545 | if (retval != MBX_BUSY) | |
2546 | mempool_free(pmb, phba->mbox_mem_pool); | |
2e0fef85 JS |
2547 | spin_lock_irq(&phba->hbalock); |
2548 | phba->link_flag &= ~LS_IGNORE_ERATT; | |
2549 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
2550 | return 1; |
2551 | } | |
2552 | ||
9290831f JS |
2553 | psli->sli_flag &= ~LPFC_SLI2_ACTIVE; |
2554 | ||
41415862 JW |
2555 | mempool_free(pmb, phba->mbox_mem_pool); |
2556 | ||
2557 | /* There is no completion for a KILL_BOARD mbox cmd. Check for an error | |
2558 | * attention every 100ms for 3 seconds. If we don't get ERATT after | |
2559 | * 3 seconds we still set HBA_ERROR state because the status of the | |
2560 | * board is now undefined. | |
2561 | */ | |
2562 | ha_copy = readl(phba->HAregaddr); | |
2563 | ||
2564 | while ((i++ < 30) && !(ha_copy & HA_ERATT)) { | |
2565 | mdelay(100); | |
2566 | ha_copy = readl(phba->HAregaddr); | |
2567 | } | |
2568 | ||
2569 | del_timer_sync(&psli->mbox_tmo); | |
9290831f JS |
2570 | if (ha_copy & HA_ERATT) { |
2571 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 2572 | phba->pport->stopped = 1; |
9290831f | 2573 | } |
2e0fef85 | 2574 | spin_lock_irq(&phba->hbalock); |
41415862 | 2575 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 JS |
2576 | phba->link_flag &= ~LS_IGNORE_ERATT; |
2577 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
2578 | |
2579 | psli->mbox_active = NULL; | |
2580 | lpfc_hba_down_post(phba); | |
2e0fef85 | 2581 | phba->link_state = LPFC_HBA_ERROR; |
41415862 | 2582 | |
2e0fef85 | 2583 | return ha_copy & HA_ERATT ? 0 : 1; |
dea3101e | 2584 | } |
2585 | ||
e59058c4 JS |
2586 | /** |
2587 | * lpfc_sli_brdreset: Reset the HBA. | |
2588 | * @phba: Pointer to HBA context object. | |
2589 | * | |
2590 | * This function resets the HBA by writing HC_INITFF to the control | |
2591 | * register. After the HBA resets, this function resets all the iocb ring | |
2592 | * indices. This function disables PCI layer parity checking during | |
2593 | * the reset. | |
2594 | * This function returns 0 always. | |
2595 | * The caller is not required to hold any locks. | |
2596 | **/ | |
41415862 | 2597 | int |
2e0fef85 | 2598 | lpfc_sli_brdreset(struct lpfc_hba *phba) |
dea3101e | 2599 | { |
41415862 | 2600 | struct lpfc_sli *psli; |
dea3101e | 2601 | struct lpfc_sli_ring *pring; |
41415862 | 2602 | uint16_t cfg_value; |
dea3101e | 2603 | int i; |
dea3101e | 2604 | |
41415862 | 2605 | psli = &phba->sli; |
dea3101e | 2606 | |
41415862 JW |
2607 | /* Reset HBA */ |
2608 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 2609 | "0325 Reset HBA Data: x%x x%x\n", |
2e0fef85 | 2610 | phba->pport->port_state, psli->sli_flag); |
dea3101e | 2611 | |
2612 | /* perform board reset */ | |
2613 | phba->fc_eventTag = 0; | |
2e0fef85 JS |
2614 | phba->pport->fc_myDID = 0; |
2615 | phba->pport->fc_prevDID = 0; | |
dea3101e | 2616 | |
41415862 JW |
2617 | /* Turn off parity checking and serr during the physical reset */ |
2618 | pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value); | |
2619 | pci_write_config_word(phba->pcidev, PCI_COMMAND, | |
2620 | (cfg_value & | |
2621 | ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR))); | |
2622 | ||
1c067a42 | 2623 | psli->sli_flag &= ~(LPFC_SLI2_ACTIVE | LPFC_PROCESS_LA); |
41415862 JW |
2624 | /* Now toggle INITFF bit in the Host Control Register */ |
2625 | writel(HC_INITFF, phba->HCregaddr); | |
2626 | mdelay(1); | |
2627 | readl(phba->HCregaddr); /* flush */ | |
2628 | writel(0, phba->HCregaddr); | |
2629 | readl(phba->HCregaddr); /* flush */ | |
2630 | ||
2631 | /* Restore PCI cmd register */ | |
2632 | pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value); | |
dea3101e | 2633 | |
2634 | /* Initialize relevant SLI info */ | |
41415862 JW |
2635 | for (i = 0; i < psli->num_rings; i++) { |
2636 | pring = &psli->ring[i]; | |
dea3101e | 2637 | pring->flag = 0; |
2638 | pring->rspidx = 0; | |
2639 | pring->next_cmdidx = 0; | |
2640 | pring->local_getidx = 0; | |
2641 | pring->cmdidx = 0; | |
2642 | pring->missbufcnt = 0; | |
2643 | } | |
dea3101e | 2644 | |
2e0fef85 | 2645 | phba->link_state = LPFC_WARM_START; |
41415862 JW |
2646 | return 0; |
2647 | } | |
2648 | ||
e59058c4 JS |
2649 | /** |
2650 | * lpfc_sli_brdrestart: Restart the HBA. | |
2651 | * @phba: Pointer to HBA context object. | |
2652 | * | |
2653 | * This function is called in the SLI initialization code path to | |
2654 | * restart the HBA. The caller is not required to hold any lock. | |
2655 | * This function writes MBX_RESTART mailbox command to the SLIM and | |
2656 | * resets the HBA. At the end of the function, it calls lpfc_hba_down_post | |
2657 | * function to free any pending commands. The function enables | |
2658 | * POST only during the first initialization. The function returns zero. | |
2659 | * The function does not guarantee completion of MBX_RESTART mailbox | |
2660 | * command before the return of this function. | |
2661 | **/ | |
41415862 | 2662 | int |
2e0fef85 | 2663 | lpfc_sli_brdrestart(struct lpfc_hba *phba) |
41415862 JW |
2664 | { |
2665 | MAILBOX_t *mb; | |
2666 | struct lpfc_sli *psli; | |
2667 | uint16_t skip_post; | |
2668 | volatile uint32_t word0; | |
2669 | void __iomem *to_slim; | |
2670 | ||
2e0fef85 | 2671 | spin_lock_irq(&phba->hbalock); |
41415862 JW |
2672 | |
2673 | psli = &phba->sli; | |
2674 | ||
2675 | /* Restart HBA */ | |
2676 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 2677 | "0337 Restart HBA Data: x%x x%x\n", |
2e0fef85 | 2678 | phba->pport->port_state, psli->sli_flag); |
41415862 JW |
2679 | |
2680 | word0 = 0; | |
2681 | mb = (MAILBOX_t *) &word0; | |
2682 | mb->mbxCommand = MBX_RESTART; | |
2683 | mb->mbxHc = 1; | |
2684 | ||
9290831f JS |
2685 | lpfc_reset_barrier(phba); |
2686 | ||
41415862 JW |
2687 | to_slim = phba->MBslimaddr; |
2688 | writel(*(uint32_t *) mb, to_slim); | |
2689 | readl(to_slim); /* flush */ | |
2690 | ||
2691 | /* Only skip post after fc_ffinit is completed */ | |
2e0fef85 | 2692 | if (phba->pport->port_state) { |
41415862 JW |
2693 | skip_post = 1; |
2694 | word0 = 1; /* This is really setting up word1 */ | |
dea3101e | 2695 | } else { |
41415862 JW |
2696 | skip_post = 0; |
2697 | word0 = 0; /* This is really setting up word1 */ | |
dea3101e | 2698 | } |
65a29c16 | 2699 | to_slim = phba->MBslimaddr + sizeof (uint32_t); |
41415862 JW |
2700 | writel(*(uint32_t *) mb, to_slim); |
2701 | readl(to_slim); /* flush */ | |
dea3101e | 2702 | |
41415862 | 2703 | lpfc_sli_brdreset(phba); |
2e0fef85 JS |
2704 | phba->pport->stopped = 0; |
2705 | phba->link_state = LPFC_INIT_START; | |
41415862 | 2706 | |
2e0fef85 | 2707 | spin_unlock_irq(&phba->hbalock); |
41415862 | 2708 | |
64ba8818 JS |
2709 | memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets)); |
2710 | psli->stats_start = get_seconds(); | |
2711 | ||
41415862 JW |
2712 | if (skip_post) |
2713 | mdelay(100); | |
2714 | else | |
2715 | mdelay(2000); | |
2716 | ||
2717 | lpfc_hba_down_post(phba); | |
dea3101e | 2718 | |
2719 | return 0; | |
2720 | } | |
2721 | ||
e59058c4 JS |
2722 | /** |
2723 | * lpfc_sli_chipset_init: Wait for the restart of the HBA after a restart. | |
2724 | * @phba: Pointer to HBA context object. | |
2725 | * | |
2726 | * This function is called after a HBA restart to wait for successful | |
2727 | * restart of the HBA. Successful restart of the HBA is indicated by | |
2728 | * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15 | |
2729 | * iteration, the function will restart the HBA again. The function returns | |
2730 | * zero if HBA successfully restarted else returns negative error code. | |
2731 | **/ | |
dea3101e | 2732 | static int |
2733 | lpfc_sli_chipset_init(struct lpfc_hba *phba) | |
2734 | { | |
2735 | uint32_t status, i = 0; | |
2736 | ||
2737 | /* Read the HBA Host Status Register */ | |
2738 | status = readl(phba->HSregaddr); | |
2739 | ||
2740 | /* Check status register to see what current state is */ | |
2741 | i = 0; | |
2742 | while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) { | |
2743 | ||
2744 | /* Check every 100ms for 5 retries, then every 500ms for 5, then | |
2745 | * every 2.5 sec for 5, then reset board and every 2.5 sec for | |
2746 | * 4. | |
2747 | */ | |
2748 | if (i++ >= 20) { | |
2749 | /* Adapter failed to init, timeout, status reg | |
2750 | <status> */ | |
ed957684 | 2751 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 2752 | "0436 Adapter failed to init, " |
09372820 JS |
2753 | "timeout, status reg x%x, " |
2754 | "FW Data: A8 x%x AC x%x\n", status, | |
2755 | readl(phba->MBslimaddr + 0xa8), | |
2756 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 2757 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 2758 | return -ETIMEDOUT; |
2759 | } | |
2760 | ||
2761 | /* Check to see if any errors occurred during init */ | |
2762 | if (status & HS_FFERM) { | |
2763 | /* ERROR: During chipset initialization */ | |
2764 | /* Adapter failed to init, chipset, status reg | |
2765 | <status> */ | |
ed957684 | 2766 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 2767 | "0437 Adapter failed to init, " |
09372820 JS |
2768 | "chipset, status reg x%x, " |
2769 | "FW Data: A8 x%x AC x%x\n", status, | |
2770 | readl(phba->MBslimaddr + 0xa8), | |
2771 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 2772 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 2773 | return -EIO; |
2774 | } | |
2775 | ||
2776 | if (i <= 5) { | |
2777 | msleep(10); | |
2778 | } else if (i <= 10) { | |
2779 | msleep(500); | |
2780 | } else { | |
2781 | msleep(2500); | |
2782 | } | |
2783 | ||
2784 | if (i == 15) { | |
2e0fef85 | 2785 | /* Do post */ |
92d7f7b0 | 2786 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 | 2787 | lpfc_sli_brdrestart(phba); |
dea3101e | 2788 | } |
2789 | /* Read the HBA Host Status Register */ | |
2790 | status = readl(phba->HSregaddr); | |
2791 | } | |
2792 | ||
2793 | /* Check to see if any errors occurred during init */ | |
2794 | if (status & HS_FFERM) { | |
2795 | /* ERROR: During chipset initialization */ | |
2796 | /* Adapter failed to init, chipset, status reg <status> */ | |
ed957684 | 2797 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 2798 | "0438 Adapter failed to init, chipset, " |
09372820 JS |
2799 | "status reg x%x, " |
2800 | "FW Data: A8 x%x AC x%x\n", status, | |
2801 | readl(phba->MBslimaddr + 0xa8), | |
2802 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 2803 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 2804 | return -EIO; |
2805 | } | |
2806 | ||
2807 | /* Clear all interrupt enable conditions */ | |
2808 | writel(0, phba->HCregaddr); | |
2809 | readl(phba->HCregaddr); /* flush */ | |
2810 | ||
2811 | /* setup host attn register */ | |
2812 | writel(0xffffffff, phba->HAregaddr); | |
2813 | readl(phba->HAregaddr); /* flush */ | |
2814 | return 0; | |
2815 | } | |
2816 | ||
e59058c4 JS |
2817 | /** |
2818 | * lpfc_sli_hbq_count: Get the number of HBQs to be configured. | |
2819 | * | |
2820 | * This function calculates and returns the number of HBQs required to be | |
2821 | * configured. | |
2822 | **/ | |
78b2d852 | 2823 | int |
ed957684 JS |
2824 | lpfc_sli_hbq_count(void) |
2825 | { | |
92d7f7b0 | 2826 | return ARRAY_SIZE(lpfc_hbq_defs); |
ed957684 JS |
2827 | } |
2828 | ||
e59058c4 JS |
2829 | /** |
2830 | * lpfc_sli_hbq_entry_count: Calculate total number of hbq entries. | |
2831 | * | |
2832 | * This function adds the number of hbq entries in every HBQ to get | |
2833 | * the total number of hbq entries required for the HBA and returns | |
2834 | * the total count. | |
2835 | **/ | |
ed957684 JS |
2836 | static int |
2837 | lpfc_sli_hbq_entry_count(void) | |
2838 | { | |
2839 | int hbq_count = lpfc_sli_hbq_count(); | |
2840 | int count = 0; | |
2841 | int i; | |
2842 | ||
2843 | for (i = 0; i < hbq_count; ++i) | |
92d7f7b0 | 2844 | count += lpfc_hbq_defs[i]->entry_count; |
ed957684 JS |
2845 | return count; |
2846 | } | |
2847 | ||
e59058c4 JS |
2848 | /** |
2849 | * lpfc_sli_hbq_size: Calculate memory required for all hbq entries. | |
2850 | * | |
2851 | * This function calculates amount of memory required for all hbq entries | |
2852 | * to be configured and returns the total memory required. | |
2853 | **/ | |
dea3101e | 2854 | int |
ed957684 JS |
2855 | lpfc_sli_hbq_size(void) |
2856 | { | |
2857 | return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry); | |
2858 | } | |
2859 | ||
e59058c4 JS |
2860 | /** |
2861 | * lpfc_sli_hbq_setup: configure and initialize HBQs. | |
2862 | * @phba: Pointer to HBA context object. | |
2863 | * | |
2864 | * This function is called during the SLI initialization to configure | |
2865 | * all the HBQs and post buffers to the HBQ. The caller is not | |
2866 | * required to hold any locks. This function will return zero if successful | |
2867 | * else it will return negative error code. | |
2868 | **/ | |
ed957684 JS |
2869 | static int |
2870 | lpfc_sli_hbq_setup(struct lpfc_hba *phba) | |
2871 | { | |
2872 | int hbq_count = lpfc_sli_hbq_count(); | |
2873 | LPFC_MBOXQ_t *pmb; | |
2874 | MAILBOX_t *pmbox; | |
2875 | uint32_t hbqno; | |
2876 | uint32_t hbq_entry_index; | |
ed957684 | 2877 | |
92d7f7b0 JS |
2878 | /* Get a Mailbox buffer to setup mailbox |
2879 | * commands for HBA initialization | |
2880 | */ | |
ed957684 JS |
2881 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
2882 | ||
2883 | if (!pmb) | |
2884 | return -ENOMEM; | |
2885 | ||
2886 | pmbox = &pmb->mb; | |
2887 | ||
2888 | /* Initialize the struct lpfc_sli_hbq structure for each hbq */ | |
2889 | phba->link_state = LPFC_INIT_MBX_CMDS; | |
3163f725 | 2890 | phba->hbq_in_use = 1; |
ed957684 JS |
2891 | |
2892 | hbq_entry_index = 0; | |
2893 | for (hbqno = 0; hbqno < hbq_count; ++hbqno) { | |
2894 | phba->hbqs[hbqno].next_hbqPutIdx = 0; | |
2895 | phba->hbqs[hbqno].hbqPutIdx = 0; | |
2896 | phba->hbqs[hbqno].local_hbqGetIdx = 0; | |
2897 | phba->hbqs[hbqno].entry_count = | |
92d7f7b0 | 2898 | lpfc_hbq_defs[hbqno]->entry_count; |
51ef4c26 JS |
2899 | lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno], |
2900 | hbq_entry_index, pmb); | |
ed957684 JS |
2901 | hbq_entry_index += phba->hbqs[hbqno].entry_count; |
2902 | ||
2903 | if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { | |
2904 | /* Adapter failed to init, mbxCmd <cmd> CFG_RING, | |
2905 | mbxStatus <status>, ring <num> */ | |
2906 | ||
2907 | lpfc_printf_log(phba, KERN_ERR, | |
92d7f7b0 | 2908 | LOG_SLI | LOG_VPORT, |
e8b62011 | 2909 | "1805 Adapter failed to init. " |
ed957684 | 2910 | "Data: x%x x%x x%x\n", |
e8b62011 | 2911 | pmbox->mbxCommand, |
ed957684 JS |
2912 | pmbox->mbxStatus, hbqno); |
2913 | ||
2914 | phba->link_state = LPFC_HBA_ERROR; | |
2915 | mempool_free(pmb, phba->mbox_mem_pool); | |
ed957684 JS |
2916 | return ENXIO; |
2917 | } | |
2918 | } | |
2919 | phba->hbq_count = hbq_count; | |
2920 | ||
ed957684 JS |
2921 | mempool_free(pmb, phba->mbox_mem_pool); |
2922 | ||
92d7f7b0 JS |
2923 | /* Initially populate or replenish the HBQs */ |
2924 | for (hbqno = 0; hbqno < hbq_count; ++hbqno) { | |
2925 | if (lpfc_sli_hbqbuf_init_hbqs(phba, hbqno)) | |
2926 | return -ENOMEM; | |
2927 | } | |
ed957684 JS |
2928 | return 0; |
2929 | } | |
2930 | ||
e59058c4 JS |
2931 | /** |
2932 | * lpfc_do_config_port: Issue config port mailbox command. | |
2933 | * @phba: Pointer to HBA context object. | |
2934 | * @sli_mode: sli mode - 2/3 | |
2935 | * | |
2936 | * This function is called by the sli intialization code path | |
2937 | * to issue config_port mailbox command. This function restarts the | |
2938 | * HBA firmware and issues a config_port mailbox command to configure | |
2939 | * the SLI interface in the sli mode specified by sli_mode | |
2940 | * variable. The caller is not required to hold any locks. | |
2941 | * The function returns 0 if successful, else returns negative error | |
2942 | * code. | |
2943 | **/ | |
ed957684 JS |
2944 | static int |
2945 | lpfc_do_config_port(struct lpfc_hba *phba, int sli_mode) | |
dea3101e | 2946 | { |
2947 | LPFC_MBOXQ_t *pmb; | |
2948 | uint32_t resetcount = 0, rc = 0, done = 0; | |
2949 | ||
2950 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
2951 | if (!pmb) { | |
2e0fef85 | 2952 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 2953 | return -ENOMEM; |
2954 | } | |
2955 | ||
ed957684 | 2956 | phba->sli_rev = sli_mode; |
dea3101e | 2957 | while (resetcount < 2 && !done) { |
2e0fef85 | 2958 | spin_lock_irq(&phba->hbalock); |
1c067a42 | 2959 | phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 2960 | spin_unlock_irq(&phba->hbalock); |
92d7f7b0 | 2961 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 | 2962 | lpfc_sli_brdrestart(phba); |
dea3101e | 2963 | msleep(2500); |
2964 | rc = lpfc_sli_chipset_init(phba); | |
2965 | if (rc) | |
2966 | break; | |
2967 | ||
2e0fef85 | 2968 | spin_lock_irq(&phba->hbalock); |
1c067a42 | 2969 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 2970 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 2971 | resetcount++; |
2972 | ||
ed957684 JS |
2973 | /* Call pre CONFIG_PORT mailbox command initialization. A |
2974 | * value of 0 means the call was successful. Any other | |
2975 | * nonzero value is a failure, but if ERESTART is returned, | |
2976 | * the driver may reset the HBA and try again. | |
2977 | */ | |
dea3101e | 2978 | rc = lpfc_config_port_prep(phba); |
2979 | if (rc == -ERESTART) { | |
ed957684 | 2980 | phba->link_state = LPFC_LINK_UNKNOWN; |
dea3101e | 2981 | continue; |
34b02dcd | 2982 | } else if (rc) |
dea3101e | 2983 | break; |
2e0fef85 | 2984 | phba->link_state = LPFC_INIT_MBX_CMDS; |
dea3101e | 2985 | lpfc_config_port(phba, pmb); |
2986 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
34b02dcd JS |
2987 | phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED | |
2988 | LPFC_SLI3_HBQ_ENABLED | | |
2989 | LPFC_SLI3_CRP_ENABLED | | |
2990 | LPFC_SLI3_INB_ENABLED); | |
ed957684 | 2991 | if (rc != MBX_SUCCESS) { |
dea3101e | 2992 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 2993 | "0442 Adapter failed to init, mbxCmd x%x " |
92d7f7b0 | 2994 | "CONFIG_PORT, mbxStatus x%x Data: x%x\n", |
e8b62011 | 2995 | pmb->mb.mbxCommand, pmb->mb.mbxStatus, 0); |
2e0fef85 | 2996 | spin_lock_irq(&phba->hbalock); |
dea3101e | 2997 | phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE; |
2e0fef85 JS |
2998 | spin_unlock_irq(&phba->hbalock); |
2999 | rc = -ENXIO; | |
34b02dcd | 3000 | } else |
ed957684 | 3001 | done = 1; |
dea3101e | 3002 | } |
ed957684 JS |
3003 | if (!done) { |
3004 | rc = -EINVAL; | |
3005 | goto do_prep_failed; | |
3006 | } | |
34b02dcd JS |
3007 | if (pmb->mb.un.varCfgPort.sli_mode == 3) { |
3008 | if (!pmb->mb.un.varCfgPort.cMA) { | |
3009 | rc = -ENXIO; | |
3010 | goto do_prep_failed; | |
3011 | } | |
3012 | if (phba->max_vpi && pmb->mb.un.varCfgPort.gmv) { | |
3013 | phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; | |
3014 | phba->max_vpi = pmb->mb.un.varCfgPort.max_vpi; | |
3015 | } else | |
3016 | phba->max_vpi = 0; | |
3017 | if (pmb->mb.un.varCfgPort.gerbm) | |
3018 | phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED; | |
3019 | if (pmb->mb.un.varCfgPort.gcrp) | |
3020 | phba->sli3_options |= LPFC_SLI3_CRP_ENABLED; | |
3021 | if (pmb->mb.un.varCfgPort.ginb) { | |
3022 | phba->sli3_options |= LPFC_SLI3_INB_ENABLED; | |
3023 | phba->port_gp = phba->mbox->us.s3_inb_pgp.port; | |
3024 | phba->inb_ha_copy = &phba->mbox->us.s3_inb_pgp.ha_copy; | |
3025 | phba->inb_counter = &phba->mbox->us.s3_inb_pgp.counter; | |
3026 | phba->inb_last_counter = | |
3027 | phba->mbox->us.s3_inb_pgp.counter; | |
3028 | } else { | |
3029 | phba->port_gp = phba->mbox->us.s3_pgp.port; | |
3030 | phba->inb_ha_copy = NULL; | |
3031 | phba->inb_counter = NULL; | |
3032 | } | |
3033 | } else { | |
3034 | phba->port_gp = phba->mbox->us.s2.port; | |
3035 | phba->inb_ha_copy = NULL; | |
3036 | phba->inb_counter = NULL; | |
ed957684 | 3037 | } |
92d7f7b0 | 3038 | do_prep_failed: |
ed957684 JS |
3039 | mempool_free(pmb, phba->mbox_mem_pool); |
3040 | return rc; | |
3041 | } | |
3042 | ||
e59058c4 JS |
3043 | |
3044 | /** | |
3045 | * lpfc_sli_hba_setup: SLI intialization function. | |
3046 | * @phba: Pointer to HBA context object. | |
3047 | * | |
3048 | * This function is the main SLI intialization function. This function | |
3049 | * is called by the HBA intialization code, HBA reset code and HBA | |
3050 | * error attention handler code. Caller is not required to hold any | |
3051 | * locks. This function issues config_port mailbox command to configure | |
3052 | * the SLI, setup iocb rings and HBQ rings. In the end the function | |
3053 | * calls the config_port_post function to issue init_link mailbox | |
3054 | * command and to start the discovery. The function will return zero | |
3055 | * if successful, else it will return negative error code. | |
3056 | **/ | |
ed957684 JS |
3057 | int |
3058 | lpfc_sli_hba_setup(struct lpfc_hba *phba) | |
3059 | { | |
3060 | uint32_t rc; | |
92d7f7b0 | 3061 | int mode = 3; |
ed957684 JS |
3062 | |
3063 | switch (lpfc_sli_mode) { | |
3064 | case 2: | |
78b2d852 | 3065 | if (phba->cfg_enable_npiv) { |
92d7f7b0 | 3066 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 | 3067 | "1824 NPIV enabled: Override lpfc_sli_mode " |
92d7f7b0 | 3068 | "parameter (%d) to auto (0).\n", |
e8b62011 | 3069 | lpfc_sli_mode); |
92d7f7b0 JS |
3070 | break; |
3071 | } | |
ed957684 JS |
3072 | mode = 2; |
3073 | break; | |
3074 | case 0: | |
3075 | case 3: | |
3076 | break; | |
3077 | default: | |
92d7f7b0 | 3078 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 JS |
3079 | "1819 Unrecognized lpfc_sli_mode " |
3080 | "parameter: %d.\n", lpfc_sli_mode); | |
ed957684 JS |
3081 | |
3082 | break; | |
3083 | } | |
3084 | ||
3085 | rc = lpfc_do_config_port(phba, mode); | |
3086 | if (rc && lpfc_sli_mode == 3) | |
92d7f7b0 | 3087 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 JS |
3088 | "1820 Unable to select SLI-3. " |
3089 | "Not supported by adapter.\n"); | |
ed957684 JS |
3090 | if (rc && mode != 2) |
3091 | rc = lpfc_do_config_port(phba, 2); | |
3092 | if (rc) | |
dea3101e | 3093 | goto lpfc_sli_hba_setup_error; |
3094 | ||
ed957684 JS |
3095 | if (phba->sli_rev == 3) { |
3096 | phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE; | |
3097 | phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE; | |
ed957684 JS |
3098 | } else { |
3099 | phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE; | |
3100 | phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE; | |
92d7f7b0 | 3101 | phba->sli3_options = 0; |
ed957684 JS |
3102 | } |
3103 | ||
3104 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
e8b62011 JS |
3105 | "0444 Firmware in SLI %x mode. Max_vpi %d\n", |
3106 | phba->sli_rev, phba->max_vpi); | |
ed957684 | 3107 | rc = lpfc_sli_ring_map(phba); |
dea3101e | 3108 | |
3109 | if (rc) | |
3110 | goto lpfc_sli_hba_setup_error; | |
3111 | ||
92d7f7b0 | 3112 | /* Init HBQs */ |
ed957684 JS |
3113 | |
3114 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { | |
3115 | rc = lpfc_sli_hbq_setup(phba); | |
3116 | if (rc) | |
3117 | goto lpfc_sli_hba_setup_error; | |
3118 | } | |
3119 | ||
dea3101e | 3120 | phba->sli.sli_flag |= LPFC_PROCESS_LA; |
3121 | ||
3122 | rc = lpfc_config_port_post(phba); | |
3123 | if (rc) | |
3124 | goto lpfc_sli_hba_setup_error; | |
3125 | ||
ed957684 JS |
3126 | return rc; |
3127 | ||
92d7f7b0 | 3128 | lpfc_sli_hba_setup_error: |
2e0fef85 | 3129 | phba->link_state = LPFC_HBA_ERROR; |
ed957684 | 3130 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
e8b62011 | 3131 | "0445 Firmware initialization failed\n"); |
dea3101e | 3132 | return rc; |
3133 | } | |
3134 | ||
e59058c4 JS |
3135 | |
3136 | /** | |
3137 | * lpfc_mbox_timeout: Timeout call back function for mbox timer. | |
3138 | * @ptr: context object - pointer to hba structure. | |
dea3101e | 3139 | * |
e59058c4 JS |
3140 | * This is the callback function for mailbox timer. The mailbox |
3141 | * timer is armed when a new mailbox command is issued and the timer | |
3142 | * is deleted when the mailbox complete. The function is called by | |
3143 | * the kernel timer code when a mailbox does not complete within | |
3144 | * expected time. This function wakes up the worker thread to | |
3145 | * process the mailbox timeout and returns. All the processing is | |
3146 | * done by the worker thread function lpfc_mbox_timeout_handler. | |
3147 | **/ | |
dea3101e | 3148 | void |
3149 | lpfc_mbox_timeout(unsigned long ptr) | |
3150 | { | |
92d7f7b0 | 3151 | struct lpfc_hba *phba = (struct lpfc_hba *) ptr; |
dea3101e | 3152 | unsigned long iflag; |
2e0fef85 | 3153 | uint32_t tmo_posted; |
dea3101e | 3154 | |
2e0fef85 | 3155 | spin_lock_irqsave(&phba->pport->work_port_lock, iflag); |
92d7f7b0 | 3156 | tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO; |
2e0fef85 JS |
3157 | if (!tmo_posted) |
3158 | phba->pport->work_port_events |= WORKER_MBOX_TMO; | |
3159 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); | |
3160 | ||
5e9d9b82 JS |
3161 | if (!tmo_posted) |
3162 | lpfc_worker_wake_up(phba); | |
3163 | return; | |
dea3101e | 3164 | } |
3165 | ||
e59058c4 JS |
3166 | |
3167 | /** | |
3168 | * lpfc_mbox_timeout_handler: Worker thread function to handle mailbox timeout. | |
3169 | * @phba: Pointer to HBA context object. | |
3170 | * | |
3171 | * This function is called from worker thread when a mailbox command times out. | |
3172 | * The caller is not required to hold any locks. This function will reset the | |
3173 | * HBA and recover all the pending commands. | |
3174 | **/ | |
dea3101e | 3175 | void |
3176 | lpfc_mbox_timeout_handler(struct lpfc_hba *phba) | |
3177 | { | |
2e0fef85 JS |
3178 | LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active; |
3179 | MAILBOX_t *mb = &pmbox->mb; | |
1dcb58e5 JS |
3180 | struct lpfc_sli *psli = &phba->sli; |
3181 | struct lpfc_sli_ring *pring; | |
dea3101e | 3182 | |
2e0fef85 | 3183 | if (!(phba->pport->work_port_events & WORKER_MBOX_TMO)) { |
dea3101e | 3184 | return; |
3185 | } | |
3186 | ||
dea3101e | 3187 | /* Mbox cmd <mbxCommand> timeout */ |
ed957684 | 3188 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
e8b62011 | 3189 | "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n", |
92d7f7b0 JS |
3190 | mb->mbxCommand, |
3191 | phba->pport->port_state, | |
3192 | phba->sli.sli_flag, | |
3193 | phba->sli.mbox_active); | |
dea3101e | 3194 | |
1dcb58e5 JS |
3195 | /* Setting state unknown so lpfc_sli_abort_iocb_ring |
3196 | * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing | |
3197 | * it to fail all oustanding SCSI IO. | |
3198 | */ | |
2e0fef85 JS |
3199 | spin_lock_irq(&phba->pport->work_port_lock); |
3200 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; | |
3201 | spin_unlock_irq(&phba->pport->work_port_lock); | |
3202 | spin_lock_irq(&phba->hbalock); | |
3203 | phba->link_state = LPFC_LINK_UNKNOWN; | |
1dcb58e5 | 3204 | psli->sli_flag &= ~LPFC_SLI2_ACTIVE; |
2e0fef85 | 3205 | spin_unlock_irq(&phba->hbalock); |
1dcb58e5 JS |
3206 | |
3207 | pring = &psli->ring[psli->fcp_ring]; | |
3208 | lpfc_sli_abort_iocb_ring(phba, pring); | |
3209 | ||
3210 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
76bb24ef | 3211 | "0345 Resetting board due to mailbox timeout\n"); |
1dcb58e5 JS |
3212 | /* |
3213 | * lpfc_offline calls lpfc_sli_hba_down which will clean up | |
3214 | * on oustanding mailbox commands. | |
3215 | */ | |
13815c83 JS |
3216 | /* If resets are disabled then set error state and return. */ |
3217 | if (!phba->cfg_enable_hba_reset) { | |
3218 | phba->link_state = LPFC_HBA_ERROR; | |
3219 | return; | |
3220 | } | |
1dcb58e5 JS |
3221 | lpfc_offline_prep(phba); |
3222 | lpfc_offline(phba); | |
3223 | lpfc_sli_brdrestart(phba); | |
58da1ffb | 3224 | lpfc_online(phba); |
1dcb58e5 | 3225 | lpfc_unblock_mgmt_io(phba); |
dea3101e | 3226 | return; |
3227 | } | |
3228 | ||
e59058c4 JS |
3229 | /** |
3230 | * lpfc_sli_issue_mbox: Issue a mailbox command to firmware. | |
3231 | * @phba: Pointer to HBA context object. | |
3232 | * @pmbox: Pointer to mailbox object. | |
3233 | * @flag: Flag indicating how the mailbox need to be processed. | |
3234 | * | |
3235 | * This function is called by discovery code and HBA management code | |
3236 | * to submit a mailbox command to firmware. This function gets the | |
3237 | * hbalock to protect the data structures. | |
3238 | * The mailbox command can be submitted in polling mode, in which case | |
3239 | * this function will wait in a polling loop for the completion of the | |
3240 | * mailbox. | |
3241 | * If the mailbox is submitted in no_wait mode (not polling) the | |
3242 | * function will submit the command and returns immediately without waiting | |
3243 | * for the mailbox completion. The no_wait is supported only when HBA | |
3244 | * is in SLI2/SLI3 mode - interrupts are enabled. | |
3245 | * The SLI interface allows only one mailbox pending at a time. If the | |
3246 | * mailbox is issued in polling mode and there is already a mailbox | |
3247 | * pending, then the function will return an error. If the mailbox is issued | |
3248 | * in NO_WAIT mode and there is a mailbox pending already, the function | |
3249 | * will return MBX_BUSY after queuing the mailbox into mailbox queue. | |
3250 | * The sli layer owns the mailbox object until the completion of mailbox | |
3251 | * command if this function return MBX_BUSY or MBX_SUCCESS. For all other | |
3252 | * return codes the caller owns the mailbox command after the return of | |
3253 | * the function. | |
3254 | **/ | |
dea3101e | 3255 | int |
2e0fef85 | 3256 | lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag) |
dea3101e | 3257 | { |
dea3101e | 3258 | MAILBOX_t *mb; |
2e0fef85 | 3259 | struct lpfc_sli *psli = &phba->sli; |
dea3101e | 3260 | uint32_t status, evtctr; |
3261 | uint32_t ha_copy; | |
3262 | int i; | |
09372820 | 3263 | unsigned long timeout; |
dea3101e | 3264 | unsigned long drvr_flag = 0; |
34b02dcd | 3265 | uint32_t word0, ldata; |
dea3101e | 3266 | void __iomem *to_slim; |
58da1ffb JS |
3267 | int processing_queue = 0; |
3268 | ||
3269 | spin_lock_irqsave(&phba->hbalock, drvr_flag); | |
3270 | if (!pmbox) { | |
3271 | /* processing mbox queue from intr_handler */ | |
3272 | processing_queue = 1; | |
3273 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
3274 | pmbox = lpfc_mbox_get(phba); | |
3275 | if (!pmbox) { | |
3276 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
3277 | return MBX_SUCCESS; | |
3278 | } | |
3279 | } | |
dea3101e | 3280 | |
ed957684 | 3281 | if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl && |
92d7f7b0 | 3282 | pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) { |
ed957684 | 3283 | if(!pmbox->vport) { |
58da1ffb | 3284 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
ed957684 | 3285 | lpfc_printf_log(phba, KERN_ERR, |
92d7f7b0 | 3286 | LOG_MBOX | LOG_VPORT, |
e8b62011 | 3287 | "1806 Mbox x%x failed. No vport\n", |
ed957684 JS |
3288 | pmbox->mb.mbxCommand); |
3289 | dump_stack(); | |
58da1ffb | 3290 | goto out_not_finished; |
ed957684 JS |
3291 | } |
3292 | } | |
3293 | ||
8d63f375 | 3294 | /* If the PCI channel is in offline state, do not post mbox. */ |
58da1ffb JS |
3295 | if (unlikely(pci_channel_offline(phba->pcidev))) { |
3296 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
3297 | goto out_not_finished; | |
3298 | } | |
8d63f375 | 3299 | |
dea3101e | 3300 | psli = &phba->sli; |
92d7f7b0 | 3301 | |
dea3101e | 3302 | mb = &pmbox->mb; |
3303 | status = MBX_SUCCESS; | |
3304 | ||
2e0fef85 JS |
3305 | if (phba->link_state == LPFC_HBA_ERROR) { |
3306 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
41415862 JW |
3307 | |
3308 | /* Mbox command <mbxCommand> cannot issue */ | |
7f5f3d0d | 3309 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); |
58da1ffb | 3310 | goto out_not_finished; |
41415862 JW |
3311 | } |
3312 | ||
9290831f JS |
3313 | if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT && |
3314 | !(readl(phba->HCregaddr) & HC_MBINT_ENA)) { | |
2e0fef85 | 3315 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
7f5f3d0d | 3316 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); |
58da1ffb | 3317 | goto out_not_finished; |
9290831f JS |
3318 | } |
3319 | ||
dea3101e | 3320 | if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { |
3321 | /* Polling for a mbox command when another one is already active | |
3322 | * is not allowed in SLI. Also, the driver must have established | |
3323 | * SLI2 mode to queue and process multiple mbox commands. | |
3324 | */ | |
3325 | ||
3326 | if (flag & MBX_POLL) { | |
2e0fef85 | 3327 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 3328 | |
3329 | /* Mbox command <mbxCommand> cannot issue */ | |
92d7f7b0 | 3330 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); |
58da1ffb | 3331 | goto out_not_finished; |
dea3101e | 3332 | } |
3333 | ||
3334 | if (!(psli->sli_flag & LPFC_SLI2_ACTIVE)) { | |
2e0fef85 | 3335 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 3336 | /* Mbox command <mbxCommand> cannot issue */ |
92d7f7b0 | 3337 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); |
58da1ffb | 3338 | goto out_not_finished; |
dea3101e | 3339 | } |
3340 | ||
dea3101e | 3341 | /* Another mailbox command is still being processed, queue this |
3342 | * command to be processed later. | |
3343 | */ | |
3344 | lpfc_mbox_put(phba, pmbox); | |
3345 | ||
3346 | /* Mbox cmd issue - BUSY */ | |
ed957684 | 3347 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
e8b62011 | 3348 | "(%d):0308 Mbox cmd issue - BUSY Data: " |
92d7f7b0 | 3349 | "x%x x%x x%x x%x\n", |
92d7f7b0 JS |
3350 | pmbox->vport ? pmbox->vport->vpi : 0xffffff, |
3351 | mb->mbxCommand, phba->pport->port_state, | |
3352 | psli->sli_flag, flag); | |
dea3101e | 3353 | |
3354 | psli->slistat.mbox_busy++; | |
2e0fef85 | 3355 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 3356 | |
858c9f6c JS |
3357 | if (pmbox->vport) { |
3358 | lpfc_debugfs_disc_trc(pmbox->vport, | |
3359 | LPFC_DISC_TRC_MBOX_VPORT, | |
3360 | "MBOX Bsy vport: cmd:x%x mb:x%x x%x", | |
3361 | (uint32_t)mb->mbxCommand, | |
3362 | mb->un.varWords[0], mb->un.varWords[1]); | |
3363 | } | |
3364 | else { | |
3365 | lpfc_debugfs_disc_trc(phba->pport, | |
3366 | LPFC_DISC_TRC_MBOX, | |
3367 | "MBOX Bsy: cmd:x%x mb:x%x x%x", | |
3368 | (uint32_t)mb->mbxCommand, | |
3369 | mb->un.varWords[0], mb->un.varWords[1]); | |
3370 | } | |
3371 | ||
2e0fef85 | 3372 | return MBX_BUSY; |
dea3101e | 3373 | } |
3374 | ||
dea3101e | 3375 | psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; |
3376 | ||
3377 | /* If we are not polling, we MUST be in SLI2 mode */ | |
3378 | if (flag != MBX_POLL) { | |
41415862 JW |
3379 | if (!(psli->sli_flag & LPFC_SLI2_ACTIVE) && |
3380 | (mb->mbxCommand != MBX_KILL_BOARD)) { | |
dea3101e | 3381 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3382 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 3383 | /* Mbox command <mbxCommand> cannot issue */ |
92d7f7b0 | 3384 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); |
58da1ffb | 3385 | goto out_not_finished; |
dea3101e | 3386 | } |
3387 | /* timeout active mbox command */ | |
a309a6b6 JS |
3388 | mod_timer(&psli->mbox_tmo, (jiffies + |
3389 | (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand)))); | |
dea3101e | 3390 | } |
3391 | ||
3392 | /* Mailbox cmd <cmd> issue */ | |
ed957684 | 3393 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
e8b62011 | 3394 | "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x " |
92d7f7b0 | 3395 | "x%x\n", |
e8b62011 | 3396 | pmbox->vport ? pmbox->vport->vpi : 0, |
92d7f7b0 JS |
3397 | mb->mbxCommand, phba->pport->port_state, |
3398 | psli->sli_flag, flag); | |
dea3101e | 3399 | |
858c9f6c JS |
3400 | if (mb->mbxCommand != MBX_HEARTBEAT) { |
3401 | if (pmbox->vport) { | |
3402 | lpfc_debugfs_disc_trc(pmbox->vport, | |
3403 | LPFC_DISC_TRC_MBOX_VPORT, | |
3404 | "MBOX Send vport: cmd:x%x mb:x%x x%x", | |
3405 | (uint32_t)mb->mbxCommand, | |
3406 | mb->un.varWords[0], mb->un.varWords[1]); | |
3407 | } | |
3408 | else { | |
3409 | lpfc_debugfs_disc_trc(phba->pport, | |
3410 | LPFC_DISC_TRC_MBOX, | |
3411 | "MBOX Send: cmd:x%x mb:x%x x%x", | |
3412 | (uint32_t)mb->mbxCommand, | |
3413 | mb->un.varWords[0], mb->un.varWords[1]); | |
3414 | } | |
3415 | } | |
3416 | ||
dea3101e | 3417 | psli->slistat.mbox_cmd++; |
3418 | evtctr = psli->slistat.mbox_event; | |
3419 | ||
3420 | /* next set own bit for the adapter and copy over command word */ | |
3421 | mb->mbxOwner = OWN_CHIP; | |
3422 | ||
3423 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
dea3101e | 3424 | /* First copy command data to host SLIM area */ |
34b02dcd | 3425 | lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE); |
dea3101e | 3426 | } else { |
9290831f | 3427 | if (mb->mbxCommand == MBX_CONFIG_PORT) { |
dea3101e | 3428 | /* copy command data into host mbox for cmpl */ |
34b02dcd | 3429 | lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE); |
dea3101e | 3430 | } |
3431 | ||
3432 | /* First copy mbox command data to HBA SLIM, skip past first | |
3433 | word */ | |
3434 | to_slim = phba->MBslimaddr + sizeof (uint32_t); | |
3435 | lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0], | |
3436 | MAILBOX_CMD_SIZE - sizeof (uint32_t)); | |
3437 | ||
3438 | /* Next copy over first word, with mbxOwner set */ | |
34b02dcd | 3439 | ldata = *((uint32_t *)mb); |
dea3101e | 3440 | to_slim = phba->MBslimaddr; |
3441 | writel(ldata, to_slim); | |
3442 | readl(to_slim); /* flush */ | |
3443 | ||
3444 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
3445 | /* switch over to host mailbox */ | |
3446 | psli->sli_flag |= LPFC_SLI2_ACTIVE; | |
3447 | } | |
3448 | } | |
3449 | ||
3450 | wmb(); | |
dea3101e | 3451 | |
3452 | switch (flag) { | |
3453 | case MBX_NOWAIT: | |
09372820 | 3454 | /* Set up reference to mailbox command */ |
dea3101e | 3455 | psli->mbox_active = pmbox; |
09372820 JS |
3456 | /* Interrupt board to do it */ |
3457 | writel(CA_MBATT, phba->CAregaddr); | |
3458 | readl(phba->CAregaddr); /* flush */ | |
3459 | /* Don't wait for it to finish, just return */ | |
dea3101e | 3460 | break; |
3461 | ||
3462 | case MBX_POLL: | |
09372820 | 3463 | /* Set up null reference to mailbox command */ |
dea3101e | 3464 | psli->mbox_active = NULL; |
09372820 JS |
3465 | /* Interrupt board to do it */ |
3466 | writel(CA_MBATT, phba->CAregaddr); | |
3467 | readl(phba->CAregaddr); /* flush */ | |
3468 | ||
dea3101e | 3469 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { |
3470 | /* First read mbox status word */ | |
34b02dcd | 3471 | word0 = *((uint32_t *)phba->mbox); |
dea3101e | 3472 | word0 = le32_to_cpu(word0); |
3473 | } else { | |
3474 | /* First read mbox status word */ | |
3475 | word0 = readl(phba->MBslimaddr); | |
3476 | } | |
3477 | ||
3478 | /* Read the HBA Host Attention Register */ | |
3479 | ha_copy = readl(phba->HAregaddr); | |
09372820 JS |
3480 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, |
3481 | mb->mbxCommand) * | |
3482 | 1000) + jiffies; | |
3483 | i = 0; | |
dea3101e | 3484 | /* Wait for command to complete */ |
41415862 JW |
3485 | while (((word0 & OWN_CHIP) == OWN_CHIP) || |
3486 | (!(ha_copy & HA_MBATT) && | |
2e0fef85 | 3487 | (phba->link_state > LPFC_WARM_START))) { |
09372820 | 3488 | if (time_after(jiffies, timeout)) { |
dea3101e | 3489 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3490 | spin_unlock_irqrestore(&phba->hbalock, |
dea3101e | 3491 | drvr_flag); |
58da1ffb | 3492 | goto out_not_finished; |
dea3101e | 3493 | } |
3494 | ||
3495 | /* Check if we took a mbox interrupt while we were | |
3496 | polling */ | |
3497 | if (((word0 & OWN_CHIP) != OWN_CHIP) | |
3498 | && (evtctr != psli->slistat.mbox_event)) | |
3499 | break; | |
3500 | ||
09372820 JS |
3501 | if (i++ > 10) { |
3502 | spin_unlock_irqrestore(&phba->hbalock, | |
3503 | drvr_flag); | |
3504 | msleep(1); | |
3505 | spin_lock_irqsave(&phba->hbalock, drvr_flag); | |
3506 | } | |
dea3101e | 3507 | |
3508 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
3509 | /* First copy command data */ | |
34b02dcd | 3510 | word0 = *((uint32_t *)phba->mbox); |
dea3101e | 3511 | word0 = le32_to_cpu(word0); |
3512 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
3513 | MAILBOX_t *slimmb; | |
34b02dcd | 3514 | uint32_t slimword0; |
dea3101e | 3515 | /* Check real SLIM for any errors */ |
3516 | slimword0 = readl(phba->MBslimaddr); | |
3517 | slimmb = (MAILBOX_t *) & slimword0; | |
3518 | if (((slimword0 & OWN_CHIP) != OWN_CHIP) | |
3519 | && slimmb->mbxStatus) { | |
3520 | psli->sli_flag &= | |
3521 | ~LPFC_SLI2_ACTIVE; | |
3522 | word0 = slimword0; | |
3523 | } | |
3524 | } | |
3525 | } else { | |
3526 | /* First copy command data */ | |
3527 | word0 = readl(phba->MBslimaddr); | |
3528 | } | |
3529 | /* Read the HBA Host Attention Register */ | |
3530 | ha_copy = readl(phba->HAregaddr); | |
3531 | } | |
3532 | ||
3533 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
dea3101e | 3534 | /* copy results back to user */ |
34b02dcd | 3535 | lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE); |
dea3101e | 3536 | } else { |
3537 | /* First copy command data */ | |
3538 | lpfc_memcpy_from_slim(mb, phba->MBslimaddr, | |
3539 | MAILBOX_CMD_SIZE); | |
3540 | if ((mb->mbxCommand == MBX_DUMP_MEMORY) && | |
3541 | pmbox->context2) { | |
92d7f7b0 | 3542 | lpfc_memcpy_from_slim((void *)pmbox->context2, |
dea3101e | 3543 | phba->MBslimaddr + DMP_RSP_OFFSET, |
3544 | mb->un.varDmp.word_cnt); | |
3545 | } | |
3546 | } | |
3547 | ||
3548 | writel(HA_MBATT, phba->HAregaddr); | |
3549 | readl(phba->HAregaddr); /* flush */ | |
3550 | ||
3551 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
3552 | status = mb->mbxStatus; | |
3553 | } | |
3554 | ||
2e0fef85 JS |
3555 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
3556 | return status; | |
58da1ffb JS |
3557 | |
3558 | out_not_finished: | |
3559 | if (processing_queue) { | |
3560 | pmbox->mb.mbxStatus = MBX_NOT_FINISHED; | |
3561 | lpfc_mbox_cmpl_put(phba, pmbox); | |
3562 | } | |
3563 | return MBX_NOT_FINISHED; | |
dea3101e | 3564 | } |
3565 | ||
e59058c4 JS |
3566 | /** |
3567 | * __lpfc_sli_ringtx_put: Add an iocb to the txq. | |
3568 | * @phba: Pointer to HBA context object. | |
3569 | * @pring: Pointer to driver SLI ring object. | |
3570 | * @piocb: Pointer to address of newly added command iocb. | |
3571 | * | |
3572 | * This function is called with hbalock held to add a command | |
3573 | * iocb to the txq when SLI layer cannot submit the command iocb | |
3574 | * to the ring. | |
3575 | **/ | |
858c9f6c | 3576 | static void |
92d7f7b0 | 3577 | __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
2e0fef85 | 3578 | struct lpfc_iocbq *piocb) |
dea3101e | 3579 | { |
3580 | /* Insert the caller's iocb in the txq tail for later processing. */ | |
3581 | list_add_tail(&piocb->list, &pring->txq); | |
3582 | pring->txq_cnt++; | |
dea3101e | 3583 | } |
3584 | ||
e59058c4 JS |
3585 | /** |
3586 | * lpfc_sli_next_iocb: Get the next iocb in the txq. | |
3587 | * @phba: Pointer to HBA context object. | |
3588 | * @pring: Pointer to driver SLI ring object. | |
3589 | * @piocb: Pointer to address of newly added command iocb. | |
3590 | * | |
3591 | * This function is called with hbalock held before a new | |
3592 | * iocb is submitted to the firmware. This function checks | |
3593 | * txq to flush the iocbs in txq to Firmware before | |
3594 | * submitting new iocbs to the Firmware. | |
3595 | * If there are iocbs in the txq which need to be submitted | |
3596 | * to firmware, lpfc_sli_next_iocb returns the first element | |
3597 | * of the txq after dequeuing it from txq. | |
3598 | * If there is no iocb in the txq then the function will return | |
3599 | * *piocb and *piocb is set to NULL. Caller needs to check | |
3600 | * *piocb to find if there are more commands in the txq. | |
3601 | **/ | |
dea3101e | 3602 | static struct lpfc_iocbq * |
3603 | lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2e0fef85 | 3604 | struct lpfc_iocbq **piocb) |
dea3101e | 3605 | { |
3606 | struct lpfc_iocbq * nextiocb; | |
3607 | ||
3608 | nextiocb = lpfc_sli_ringtx_get(phba, pring); | |
3609 | if (!nextiocb) { | |
3610 | nextiocb = *piocb; | |
3611 | *piocb = NULL; | |
3612 | } | |
3613 | ||
3614 | return nextiocb; | |
3615 | } | |
3616 | ||
e59058c4 JS |
3617 | /** |
3618 | * __lpfc_sli_issue_iocb: Lockless version of lpfc_sli_issue_iocb. | |
3619 | * @phba: Pointer to HBA context object. | |
3620 | * @pring: Pointer to driver SLI ring object. | |
3621 | * @piocb: Pointer to command iocb. | |
3622 | * @flag: Flag indicating if this command can be put into txq. | |
3623 | * | |
3624 | * __lpfc_sli_issue_iocb is used by other functions in the driver | |
3625 | * to issue an iocb command to the HBA. If the PCI slot is recovering | |
3626 | * from error state or if HBA is resetting or if LPFC_STOP_IOCB_EVENT | |
3627 | * flag is turned on, the function returns IOCB_ERROR. | |
3628 | * When the link is down, this function allows only iocbs for | |
3629 | * posting buffers. | |
3630 | * This function finds next available slot in the command ring and | |
3631 | * posts the command to the available slot and writes the port | |
3632 | * attention register to request HBA start processing new iocb. | |
3633 | * If there is no slot available in the ring and | |
3634 | * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the | |
3635 | * txq, otherwise the function returns IOCB_BUSY. | |
3636 | * | |
3637 | * This function is called with hbalock held. | |
3638 | * The function will return success after it successfully submit the | |
3639 | * iocb to firmware or after adding to the txq. | |
3640 | **/ | |
98c9ea5c | 3641 | static int |
92d7f7b0 | 3642 | __lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
dea3101e | 3643 | struct lpfc_iocbq *piocb, uint32_t flag) |
3644 | { | |
3645 | struct lpfc_iocbq *nextiocb; | |
3646 | IOCB_t *iocb; | |
3647 | ||
92d7f7b0 JS |
3648 | if (piocb->iocb_cmpl && (!piocb->vport) && |
3649 | (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) && | |
3650 | (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) { | |
3651 | lpfc_printf_log(phba, KERN_ERR, | |
3652 | LOG_SLI | LOG_VPORT, | |
e8b62011 | 3653 | "1807 IOCB x%x failed. No vport\n", |
92d7f7b0 JS |
3654 | piocb->iocb.ulpCommand); |
3655 | dump_stack(); | |
3656 | return IOCB_ERROR; | |
3657 | } | |
3658 | ||
3659 | ||
8d63f375 LV |
3660 | /* If the PCI channel is in offline state, do not post iocbs. */ |
3661 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
3662 | return IOCB_ERROR; | |
3663 | ||
dea3101e | 3664 | /* |
3665 | * We should never get an IOCB if we are in a < LINK_DOWN state | |
3666 | */ | |
2e0fef85 | 3667 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) |
dea3101e | 3668 | return IOCB_ERROR; |
3669 | ||
3670 | /* | |
3671 | * Check to see if we are blocking IOCB processing because of a | |
0b727fea | 3672 | * outstanding event. |
dea3101e | 3673 | */ |
0b727fea | 3674 | if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT)) |
dea3101e | 3675 | goto iocb_busy; |
3676 | ||
2e0fef85 | 3677 | if (unlikely(phba->link_state == LPFC_LINK_DOWN)) { |
dea3101e | 3678 | /* |
2680eeaa | 3679 | * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF |
dea3101e | 3680 | * can be issued if the link is not up. |
3681 | */ | |
3682 | switch (piocb->iocb.ulpCommand) { | |
3683 | case CMD_QUE_RING_BUF_CN: | |
3684 | case CMD_QUE_RING_BUF64_CN: | |
dea3101e | 3685 | /* |
3686 | * For IOCBs, like QUE_RING_BUF, that have no rsp ring | |
3687 | * completion, iocb_cmpl MUST be 0. | |
3688 | */ | |
3689 | if (piocb->iocb_cmpl) | |
3690 | piocb->iocb_cmpl = NULL; | |
3691 | /*FALLTHROUGH*/ | |
3692 | case CMD_CREATE_XRI_CR: | |
2680eeaa JS |
3693 | case CMD_CLOSE_XRI_CN: |
3694 | case CMD_CLOSE_XRI_CX: | |
dea3101e | 3695 | break; |
3696 | default: | |
3697 | goto iocb_busy; | |
3698 | } | |
3699 | ||
3700 | /* | |
3701 | * For FCP commands, we must be in a state where we can process link | |
3702 | * attention events. | |
3703 | */ | |
3704 | } else if (unlikely(pring->ringno == phba->sli.fcp_ring && | |
92d7f7b0 | 3705 | !(phba->sli.sli_flag & LPFC_PROCESS_LA))) { |
dea3101e | 3706 | goto iocb_busy; |
92d7f7b0 | 3707 | } |
dea3101e | 3708 | |
dea3101e | 3709 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && |
3710 | (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb))) | |
3711 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
3712 | ||
3713 | if (iocb) | |
3714 | lpfc_sli_update_ring(phba, pring); | |
3715 | else | |
3716 | lpfc_sli_update_full_ring(phba, pring); | |
3717 | ||
3718 | if (!piocb) | |
3719 | return IOCB_SUCCESS; | |
3720 | ||
3721 | goto out_busy; | |
3722 | ||
3723 | iocb_busy: | |
3724 | pring->stats.iocb_cmd_delay++; | |
3725 | ||
3726 | out_busy: | |
3727 | ||
3728 | if (!(flag & SLI_IOCB_RET_IOCB)) { | |
92d7f7b0 | 3729 | __lpfc_sli_ringtx_put(phba, pring, piocb); |
dea3101e | 3730 | return IOCB_SUCCESS; |
3731 | } | |
3732 | ||
3733 | return IOCB_BUSY; | |
3734 | } | |
3735 | ||
92d7f7b0 | 3736 | |
e59058c4 JS |
3737 | /** |
3738 | * lpfc_sli_issue_iocb: Wrapper function for __lpfc_sli_issue_iocb. | |
3739 | * @phba: Pointer to HBA context object. | |
3740 | * @pring: Pointer to driver SLI ring object. | |
3741 | * @piocb: Pointer to command iocb. | |
3742 | * @flag: Flag indicating if this command can be put into txq. | |
3743 | * | |
3744 | * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb | |
3745 | * function. This function gets the hbalock and calls | |
3746 | * __lpfc_sli_issue_iocb function and will return the error returned | |
3747 | * by __lpfc_sli_issue_iocb function. This wrapper is used by | |
3748 | * functions which do not hold hbalock. | |
3749 | **/ | |
92d7f7b0 JS |
3750 | int |
3751 | lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
3752 | struct lpfc_iocbq *piocb, uint32_t flag) | |
3753 | { | |
3754 | unsigned long iflags; | |
3755 | int rc; | |
3756 | ||
3757 | spin_lock_irqsave(&phba->hbalock, iflags); | |
3758 | rc = __lpfc_sli_issue_iocb(phba, pring, piocb, flag); | |
3759 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
3760 | ||
3761 | return rc; | |
3762 | } | |
3763 | ||
e59058c4 JS |
3764 | /** |
3765 | * lpfc_extra_ring_setup: Extra ring setup function. | |
3766 | * @phba: Pointer to HBA context object. | |
3767 | * | |
3768 | * This function is called while driver attaches with the | |
3769 | * HBA to setup the extra ring. The extra ring is used | |
3770 | * only when driver needs to support target mode functionality | |
3771 | * or IP over FC functionalities. | |
3772 | * | |
3773 | * This function is called with no lock held. | |
3774 | **/ | |
cf5bf97e JW |
3775 | static int |
3776 | lpfc_extra_ring_setup( struct lpfc_hba *phba) | |
3777 | { | |
3778 | struct lpfc_sli *psli; | |
3779 | struct lpfc_sli_ring *pring; | |
3780 | ||
3781 | psli = &phba->sli; | |
3782 | ||
3783 | /* Adjust cmd/rsp ring iocb entries more evenly */ | |
a4bc3379 JS |
3784 | |
3785 | /* Take some away from the FCP ring */ | |
cf5bf97e JW |
3786 | pring = &psli->ring[psli->fcp_ring]; |
3787 | pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
3788 | pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
3789 | pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
3790 | pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
3791 | ||
a4bc3379 JS |
3792 | /* and give them to the extra ring */ |
3793 | pring = &psli->ring[psli->extra_ring]; | |
3794 | ||
cf5bf97e JW |
3795 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; |
3796 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
3797 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
3798 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
3799 | ||
3800 | /* Setup default profile for this ring */ | |
3801 | pring->iotag_max = 4096; | |
3802 | pring->num_mask = 1; | |
3803 | pring->prt[0].profile = 0; /* Mask 0 */ | |
a4bc3379 JS |
3804 | pring->prt[0].rctl = phba->cfg_multi_ring_rctl; |
3805 | pring->prt[0].type = phba->cfg_multi_ring_type; | |
cf5bf97e JW |
3806 | pring->prt[0].lpfc_sli_rcv_unsol_event = NULL; |
3807 | return 0; | |
3808 | } | |
3809 | ||
e59058c4 JS |
3810 | /** |
3811 | * lpfc_sli_async_event_handler: ASYNC iocb handler function. | |
3812 | * @phba: Pointer to HBA context object. | |
3813 | * @pring: Pointer to driver SLI ring object. | |
3814 | * @iocbq: Pointer to iocb object. | |
3815 | * | |
3816 | * This function is called by the slow ring event handler | |
3817 | * function when there is an ASYNC event iocb in the ring. | |
3818 | * This function is called with no lock held. | |
3819 | * Currently this function handles only temperature related | |
3820 | * ASYNC events. The function decodes the temperature sensor | |
3821 | * event message and posts events for the management applications. | |
3822 | **/ | |
98c9ea5c | 3823 | static void |
57127f15 JS |
3824 | lpfc_sli_async_event_handler(struct lpfc_hba * phba, |
3825 | struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq) | |
3826 | { | |
3827 | IOCB_t *icmd; | |
3828 | uint16_t evt_code; | |
3829 | uint16_t temp; | |
3830 | struct temp_event temp_event_data; | |
3831 | struct Scsi_Host *shost; | |
3832 | ||
3833 | icmd = &iocbq->iocb; | |
3834 | evt_code = icmd->un.asyncstat.evt_code; | |
3835 | temp = icmd->ulpContext; | |
3836 | ||
3837 | if ((evt_code != ASYNC_TEMP_WARN) && | |
3838 | (evt_code != ASYNC_TEMP_SAFE)) { | |
3839 | lpfc_printf_log(phba, | |
3840 | KERN_ERR, | |
3841 | LOG_SLI, | |
76bb24ef | 3842 | "0346 Ring %d handler: unexpected ASYNC_STATUS" |
57127f15 JS |
3843 | " evt_code 0x%x\n", |
3844 | pring->ringno, | |
3845 | icmd->un.asyncstat.evt_code); | |
3846 | return; | |
3847 | } | |
3848 | temp_event_data.data = (uint32_t)temp; | |
3849 | temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; | |
3850 | if (evt_code == ASYNC_TEMP_WARN) { | |
3851 | temp_event_data.event_code = LPFC_THRESHOLD_TEMP; | |
3852 | lpfc_printf_log(phba, | |
09372820 | 3853 | KERN_ERR, |
57127f15 | 3854 | LOG_TEMP, |
76bb24ef | 3855 | "0347 Adapter is very hot, please take " |
57127f15 JS |
3856 | "corrective action. temperature : %d Celsius\n", |
3857 | temp); | |
3858 | } | |
3859 | if (evt_code == ASYNC_TEMP_SAFE) { | |
3860 | temp_event_data.event_code = LPFC_NORMAL_TEMP; | |
3861 | lpfc_printf_log(phba, | |
09372820 | 3862 | KERN_ERR, |
57127f15 JS |
3863 | LOG_TEMP, |
3864 | "0340 Adapter temperature is OK now. " | |
3865 | "temperature : %d Celsius\n", | |
3866 | temp); | |
3867 | } | |
3868 | ||
3869 | /* Send temperature change event to applications */ | |
3870 | shost = lpfc_shost_from_vport(phba->pport); | |
3871 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
3872 | sizeof(temp_event_data), (char *) &temp_event_data, | |
3873 | SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); | |
3874 | ||
3875 | } | |
3876 | ||
3877 | ||
e59058c4 JS |
3878 | /** |
3879 | * lpfc_sli_setup: SLI ring setup function. | |
3880 | * @phba: Pointer to HBA context object. | |
3881 | * | |
3882 | * lpfc_sli_setup sets up rings of the SLI interface with | |
3883 | * number of iocbs per ring and iotags. This function is | |
3884 | * called while driver attach to the HBA and before the | |
3885 | * interrupts are enabled. So there is no need for locking. | |
3886 | * | |
3887 | * This function always returns 0. | |
3888 | **/ | |
dea3101e | 3889 | int |
3890 | lpfc_sli_setup(struct lpfc_hba *phba) | |
3891 | { | |
ed957684 | 3892 | int i, totiocbsize = 0; |
dea3101e | 3893 | struct lpfc_sli *psli = &phba->sli; |
3894 | struct lpfc_sli_ring *pring; | |
3895 | ||
3896 | psli->num_rings = MAX_CONFIGURED_RINGS; | |
3897 | psli->sli_flag = 0; | |
3898 | psli->fcp_ring = LPFC_FCP_RING; | |
3899 | psli->next_ring = LPFC_FCP_NEXT_RING; | |
a4bc3379 | 3900 | psli->extra_ring = LPFC_EXTRA_RING; |
dea3101e | 3901 | |
604a3e30 JB |
3902 | psli->iocbq_lookup = NULL; |
3903 | psli->iocbq_lookup_len = 0; | |
3904 | psli->last_iotag = 0; | |
3905 | ||
dea3101e | 3906 | for (i = 0; i < psli->num_rings; i++) { |
3907 | pring = &psli->ring[i]; | |
3908 | switch (i) { | |
3909 | case LPFC_FCP_RING: /* ring 0 - FCP */ | |
3910 | /* numCiocb and numRiocb are used in config_port */ | |
3911 | pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES; | |
3912 | pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES; | |
3913 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
3914 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
3915 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
3916 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
ed957684 | 3917 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
3918 | SLI3_IOCB_CMD_SIZE : |
3919 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 3920 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
3921 | SLI3_IOCB_RSP_SIZE : |
3922 | SLI2_IOCB_RSP_SIZE; | |
dea3101e | 3923 | pring->iotag_ctr = 0; |
3924 | pring->iotag_max = | |
92d7f7b0 | 3925 | (phba->cfg_hba_queue_depth * 2); |
dea3101e | 3926 | pring->fast_iotag = pring->iotag_max; |
3927 | pring->num_mask = 0; | |
3928 | break; | |
a4bc3379 | 3929 | case LPFC_EXTRA_RING: /* ring 1 - EXTRA */ |
dea3101e | 3930 | /* numCiocb and numRiocb are used in config_port */ |
3931 | pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES; | |
3932 | pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES; | |
ed957684 | 3933 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
3934 | SLI3_IOCB_CMD_SIZE : |
3935 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 3936 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
3937 | SLI3_IOCB_RSP_SIZE : |
3938 | SLI2_IOCB_RSP_SIZE; | |
2e0fef85 | 3939 | pring->iotag_max = phba->cfg_hba_queue_depth; |
dea3101e | 3940 | pring->num_mask = 0; |
3941 | break; | |
3942 | case LPFC_ELS_RING: /* ring 2 - ELS / CT */ | |
3943 | /* numCiocb and numRiocb are used in config_port */ | |
3944 | pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES; | |
3945 | pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES; | |
ed957684 | 3946 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
3947 | SLI3_IOCB_CMD_SIZE : |
3948 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 3949 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
3950 | SLI3_IOCB_RSP_SIZE : |
3951 | SLI2_IOCB_RSP_SIZE; | |
dea3101e | 3952 | pring->fast_iotag = 0; |
3953 | pring->iotag_ctr = 0; | |
3954 | pring->iotag_max = 4096; | |
57127f15 JS |
3955 | pring->lpfc_sli_rcv_async_status = |
3956 | lpfc_sli_async_event_handler; | |
dea3101e | 3957 | pring->num_mask = 4; |
3958 | pring->prt[0].profile = 0; /* Mask 0 */ | |
3959 | pring->prt[0].rctl = FC_ELS_REQ; | |
3960 | pring->prt[0].type = FC_ELS_DATA; | |
3961 | pring->prt[0].lpfc_sli_rcv_unsol_event = | |
92d7f7b0 | 3962 | lpfc_els_unsol_event; |
dea3101e | 3963 | pring->prt[1].profile = 0; /* Mask 1 */ |
3964 | pring->prt[1].rctl = FC_ELS_RSP; | |
3965 | pring->prt[1].type = FC_ELS_DATA; | |
3966 | pring->prt[1].lpfc_sli_rcv_unsol_event = | |
92d7f7b0 | 3967 | lpfc_els_unsol_event; |
dea3101e | 3968 | pring->prt[2].profile = 0; /* Mask 2 */ |
3969 | /* NameServer Inquiry */ | |
3970 | pring->prt[2].rctl = FC_UNSOL_CTL; | |
3971 | /* NameServer */ | |
3972 | pring->prt[2].type = FC_COMMON_TRANSPORT_ULP; | |
3973 | pring->prt[2].lpfc_sli_rcv_unsol_event = | |
92d7f7b0 | 3974 | lpfc_ct_unsol_event; |
dea3101e | 3975 | pring->prt[3].profile = 0; /* Mask 3 */ |
3976 | /* NameServer response */ | |
3977 | pring->prt[3].rctl = FC_SOL_CTL; | |
3978 | /* NameServer */ | |
3979 | pring->prt[3].type = FC_COMMON_TRANSPORT_ULP; | |
3980 | pring->prt[3].lpfc_sli_rcv_unsol_event = | |
92d7f7b0 | 3981 | lpfc_ct_unsol_event; |
dea3101e | 3982 | break; |
3983 | } | |
ed957684 | 3984 | totiocbsize += (pring->numCiocb * pring->sizeCiocb) + |
92d7f7b0 | 3985 | (pring->numRiocb * pring->sizeRiocb); |
dea3101e | 3986 | } |
ed957684 | 3987 | if (totiocbsize > MAX_SLIM_IOCB_SIZE) { |
dea3101e | 3988 | /* Too many cmd / rsp ring entries in SLI2 SLIM */ |
e8b62011 JS |
3989 | printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in " |
3990 | "SLI2 SLIM Data: x%x x%lx\n", | |
3991 | phba->brd_no, totiocbsize, | |
3992 | (unsigned long) MAX_SLIM_IOCB_SIZE); | |
dea3101e | 3993 | } |
cf5bf97e JW |
3994 | if (phba->cfg_multi_ring_support == 2) |
3995 | lpfc_extra_ring_setup(phba); | |
dea3101e | 3996 | |
3997 | return 0; | |
3998 | } | |
3999 | ||
e59058c4 JS |
4000 | /** |
4001 | * lpfc_sli_queue_setup: Queue initialization function. | |
4002 | * @phba: Pointer to HBA context object. | |
4003 | * | |
4004 | * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each | |
4005 | * ring. This function also initializes ring indices of each ring. | |
4006 | * This function is called during the initialization of the SLI | |
4007 | * interface of an HBA. | |
4008 | * This function is called with no lock held and always returns | |
4009 | * 1. | |
4010 | **/ | |
dea3101e | 4011 | int |
2e0fef85 | 4012 | lpfc_sli_queue_setup(struct lpfc_hba *phba) |
dea3101e | 4013 | { |
4014 | struct lpfc_sli *psli; | |
4015 | struct lpfc_sli_ring *pring; | |
604a3e30 | 4016 | int i; |
dea3101e | 4017 | |
4018 | psli = &phba->sli; | |
2e0fef85 | 4019 | spin_lock_irq(&phba->hbalock); |
dea3101e | 4020 | INIT_LIST_HEAD(&psli->mboxq); |
92d7f7b0 | 4021 | INIT_LIST_HEAD(&psli->mboxq_cmpl); |
dea3101e | 4022 | /* Initialize list headers for txq and txcmplq as double linked lists */ |
4023 | for (i = 0; i < psli->num_rings; i++) { | |
4024 | pring = &psli->ring[i]; | |
4025 | pring->ringno = i; | |
4026 | pring->next_cmdidx = 0; | |
4027 | pring->local_getidx = 0; | |
4028 | pring->cmdidx = 0; | |
4029 | INIT_LIST_HEAD(&pring->txq); | |
4030 | INIT_LIST_HEAD(&pring->txcmplq); | |
4031 | INIT_LIST_HEAD(&pring->iocb_continueq); | |
9c2face6 | 4032 | INIT_LIST_HEAD(&pring->iocb_continue_saveq); |
dea3101e | 4033 | INIT_LIST_HEAD(&pring->postbufq); |
dea3101e | 4034 | } |
2e0fef85 JS |
4035 | spin_unlock_irq(&phba->hbalock); |
4036 | return 1; | |
dea3101e | 4037 | } |
4038 | ||
e59058c4 JS |
4039 | /** |
4040 | * lpfc_sli_host_down: Vport cleanup function. | |
4041 | * @vport: Pointer to virtual port object. | |
4042 | * | |
4043 | * lpfc_sli_host_down is called to clean up the resources | |
4044 | * associated with a vport before destroying virtual | |
4045 | * port data structures. | |
4046 | * This function does following operations: | |
4047 | * - Free discovery resources associated with this virtual | |
4048 | * port. | |
4049 | * - Free iocbs associated with this virtual port in | |
4050 | * the txq. | |
4051 | * - Send abort for all iocb commands associated with this | |
4052 | * vport in txcmplq. | |
4053 | * | |
4054 | * This function is called with no lock held and always returns 1. | |
4055 | **/ | |
92d7f7b0 JS |
4056 | int |
4057 | lpfc_sli_host_down(struct lpfc_vport *vport) | |
4058 | { | |
858c9f6c | 4059 | LIST_HEAD(completions); |
92d7f7b0 JS |
4060 | struct lpfc_hba *phba = vport->phba; |
4061 | struct lpfc_sli *psli = &phba->sli; | |
4062 | struct lpfc_sli_ring *pring; | |
4063 | struct lpfc_iocbq *iocb, *next_iocb; | |
92d7f7b0 JS |
4064 | int i; |
4065 | unsigned long flags = 0; | |
4066 | uint16_t prev_pring_flag; | |
4067 | ||
4068 | lpfc_cleanup_discovery_resources(vport); | |
4069 | ||
4070 | spin_lock_irqsave(&phba->hbalock, flags); | |
92d7f7b0 JS |
4071 | for (i = 0; i < psli->num_rings; i++) { |
4072 | pring = &psli->ring[i]; | |
4073 | prev_pring_flag = pring->flag; | |
5e9d9b82 JS |
4074 | /* Only slow rings */ |
4075 | if (pring->ringno == LPFC_ELS_RING) { | |
858c9f6c | 4076 | pring->flag |= LPFC_DEFERRED_RING_EVENT; |
5e9d9b82 JS |
4077 | /* Set the lpfc data pending flag */ |
4078 | set_bit(LPFC_DATA_READY, &phba->data_flags); | |
4079 | } | |
92d7f7b0 JS |
4080 | /* |
4081 | * Error everything on the txq since these iocbs have not been | |
4082 | * given to the FW yet. | |
4083 | */ | |
92d7f7b0 JS |
4084 | list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { |
4085 | if (iocb->vport != vport) | |
4086 | continue; | |
858c9f6c | 4087 | list_move_tail(&iocb->list, &completions); |
92d7f7b0 | 4088 | pring->txq_cnt--; |
92d7f7b0 JS |
4089 | } |
4090 | ||
4091 | /* Next issue ABTS for everything on the txcmplq */ | |
4092 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, | |
4093 | list) { | |
4094 | if (iocb->vport != vport) | |
4095 | continue; | |
4096 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); | |
4097 | } | |
4098 | ||
4099 | pring->flag = prev_pring_flag; | |
4100 | } | |
4101 | ||
4102 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
4103 | ||
858c9f6c JS |
4104 | while (!list_empty(&completions)) { |
4105 | list_remove_head(&completions, iocb, struct lpfc_iocbq, list); | |
4106 | ||
4107 | if (!iocb->iocb_cmpl) | |
4108 | lpfc_sli_release_iocbq(phba, iocb); | |
4109 | else { | |
4110 | iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT; | |
4111 | iocb->iocb.un.ulpWord[4] = IOERR_SLI_DOWN; | |
4112 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
4113 | } | |
4114 | } | |
92d7f7b0 JS |
4115 | return 1; |
4116 | } | |
4117 | ||
e59058c4 JS |
4118 | /** |
4119 | * lpfc_sli_hba_down: Resource cleanup function for the HBA. | |
4120 | * @phba: Pointer to HBA context object. | |
4121 | * | |
4122 | * This function cleans up all iocb, buffers, mailbox commands | |
4123 | * while shutting down the HBA. This function is called with no | |
4124 | * lock held and always returns 1. | |
4125 | * This function does the following to cleanup driver resources: | |
4126 | * - Free discovery resources for each virtual port | |
4127 | * - Cleanup any pending fabric iocbs | |
4128 | * - Iterate through the iocb txq and free each entry | |
4129 | * in the list. | |
4130 | * - Free up any buffer posted to the HBA | |
4131 | * - Free mailbox commands in the mailbox queue. | |
4132 | **/ | |
dea3101e | 4133 | int |
2e0fef85 | 4134 | lpfc_sli_hba_down(struct lpfc_hba *phba) |
dea3101e | 4135 | { |
2534ba75 | 4136 | LIST_HEAD(completions); |
2e0fef85 | 4137 | struct lpfc_sli *psli = &phba->sli; |
dea3101e | 4138 | struct lpfc_sli_ring *pring; |
0ff10d46 | 4139 | struct lpfc_dmabuf *buf_ptr; |
dea3101e | 4140 | LPFC_MBOXQ_t *pmb; |
2534ba75 JS |
4141 | struct lpfc_iocbq *iocb; |
4142 | IOCB_t *cmd = NULL; | |
dea3101e | 4143 | int i; |
4144 | unsigned long flags = 0; | |
4145 | ||
dea3101e | 4146 | lpfc_hba_down_prep(phba); |
4147 | ||
92d7f7b0 JS |
4148 | lpfc_fabric_abort_hba(phba); |
4149 | ||
2e0fef85 | 4150 | spin_lock_irqsave(&phba->hbalock, flags); |
dea3101e | 4151 | for (i = 0; i < psli->num_rings; i++) { |
4152 | pring = &psli->ring[i]; | |
5e9d9b82 JS |
4153 | /* Only slow rings */ |
4154 | if (pring->ringno == LPFC_ELS_RING) { | |
858c9f6c | 4155 | pring->flag |= LPFC_DEFERRED_RING_EVENT; |
5e9d9b82 JS |
4156 | /* Set the lpfc data pending flag */ |
4157 | set_bit(LPFC_DATA_READY, &phba->data_flags); | |
4158 | } | |
dea3101e | 4159 | |
4160 | /* | |
4161 | * Error everything on the txq since these iocbs have not been | |
4162 | * given to the FW yet. | |
4163 | */ | |
2534ba75 | 4164 | list_splice_init(&pring->txq, &completions); |
dea3101e | 4165 | pring->txq_cnt = 0; |
4166 | ||
2534ba75 | 4167 | } |
2e0fef85 | 4168 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e | 4169 | |
2534ba75 | 4170 | while (!list_empty(&completions)) { |
92d7f7b0 | 4171 | list_remove_head(&completions, iocb, struct lpfc_iocbq, list); |
2534ba75 | 4172 | cmd = &iocb->iocb; |
dea3101e | 4173 | |
2e0fef85 JS |
4174 | if (!iocb->iocb_cmpl) |
4175 | lpfc_sli_release_iocbq(phba, iocb); | |
4176 | else { | |
2534ba75 JS |
4177 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; |
4178 | cmd->un.ulpWord[4] = IOERR_SLI_DOWN; | |
4179 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
2e0fef85 | 4180 | } |
dea3101e | 4181 | } |
4182 | ||
0ff10d46 JS |
4183 | spin_lock_irqsave(&phba->hbalock, flags); |
4184 | list_splice_init(&phba->elsbuf, &completions); | |
4185 | phba->elsbuf_cnt = 0; | |
4186 | phba->elsbuf_prev_cnt = 0; | |
4187 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
4188 | ||
4189 | while (!list_empty(&completions)) { | |
4190 | list_remove_head(&completions, buf_ptr, | |
4191 | struct lpfc_dmabuf, list); | |
4192 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
4193 | kfree(buf_ptr); | |
4194 | } | |
4195 | ||
dea3101e | 4196 | /* Return any active mbox cmds */ |
4197 | del_timer_sync(&psli->mbox_tmo); | |
92d7f7b0 | 4198 | spin_lock_irqsave(&phba->hbalock, flags); |
2e0fef85 | 4199 | |
92d7f7b0 | 4200 | spin_lock(&phba->pport->work_port_lock); |
2e0fef85 | 4201 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; |
92d7f7b0 | 4202 | spin_unlock(&phba->pport->work_port_lock); |
2e0fef85 | 4203 | |
97eab634 JS |
4204 | /* Return any pending or completed mbox cmds */ |
4205 | list_splice_init(&phba->sli.mboxq, &completions); | |
92d7f7b0 JS |
4206 | if (psli->mbox_active) { |
4207 | list_add_tail(&psli->mbox_active->list, &completions); | |
2e0fef85 | 4208 | psli->mbox_active = NULL; |
2e0fef85 | 4209 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
dea3101e | 4210 | } |
92d7f7b0 | 4211 | list_splice_init(&phba->sli.mboxq_cmpl, &completions); |
92d7f7b0 JS |
4212 | spin_unlock_irqrestore(&phba->hbalock, flags); |
4213 | ||
4214 | while (!list_empty(&completions)) { | |
4215 | list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list); | |
dea3101e | 4216 | pmb->mb.mbxStatus = MBX_NOT_FINISHED; |
97eab634 | 4217 | if (pmb->mbox_cmpl) |
dea3101e | 4218 | pmb->mbox_cmpl(phba,pmb); |
dea3101e | 4219 | } |
dea3101e | 4220 | return 1; |
4221 | } | |
4222 | ||
e59058c4 JS |
4223 | /** |
4224 | * lpfc_sli_pcimem_bcopy: SLI memory copy function. | |
4225 | * @srcp: Source memory pointer. | |
4226 | * @destp: Destination memory pointer. | |
4227 | * @cnt: Number of words required to be copied. | |
4228 | * | |
4229 | * This function is used for copying data between driver memory | |
4230 | * and the SLI memory. This function also changes the endianness | |
4231 | * of each word if native endianness is different from SLI | |
4232 | * endianness. This function can be called with or without | |
4233 | * lock. | |
4234 | **/ | |
dea3101e | 4235 | void |
4236 | lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt) | |
4237 | { | |
4238 | uint32_t *src = srcp; | |
4239 | uint32_t *dest = destp; | |
4240 | uint32_t ldata; | |
4241 | int i; | |
4242 | ||
4243 | for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) { | |
4244 | ldata = *src; | |
4245 | ldata = le32_to_cpu(ldata); | |
4246 | *dest = ldata; | |
4247 | src++; | |
4248 | dest++; | |
4249 | } | |
4250 | } | |
4251 | ||
e59058c4 JS |
4252 | |
4253 | /** | |
4254 | * lpfc_sli_ringpostbuf_put: Function to add a buffer to postbufq. | |
4255 | * @phba: Pointer to HBA context object. | |
4256 | * @pring: Pointer to driver SLI ring object. | |
4257 | * @mp: Pointer to driver buffer object. | |
4258 | * | |
4259 | * This function is called with no lock held. | |
4260 | * It always return zero after adding the buffer to the postbufq | |
4261 | * buffer list. | |
4262 | **/ | |
dea3101e | 4263 | int |
2e0fef85 JS |
4264 | lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
4265 | struct lpfc_dmabuf *mp) | |
dea3101e | 4266 | { |
4267 | /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up | |
4268 | later */ | |
2e0fef85 | 4269 | spin_lock_irq(&phba->hbalock); |
dea3101e | 4270 | list_add_tail(&mp->list, &pring->postbufq); |
dea3101e | 4271 | pring->postbufq_cnt++; |
2e0fef85 | 4272 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 4273 | return 0; |
4274 | } | |
4275 | ||
e59058c4 JS |
4276 | /** |
4277 | * lpfc_sli_get_buffer_tag: Tag allocation function for a buffer posted | |
4278 | * using CMD_QUE_XRI64_CX iocb. | |
4279 | * @phba: Pointer to HBA context object. | |
4280 | * | |
4281 | * When HBQ is enabled, buffers are searched based on tags. This function | |
4282 | * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The | |
4283 | * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag | |
4284 | * does not conflict with tags of buffer posted for unsolicited events. | |
4285 | * The function returns the allocated tag. The function is called with | |
4286 | * no locks held. | |
4287 | **/ | |
76bb24ef JS |
4288 | uint32_t |
4289 | lpfc_sli_get_buffer_tag(struct lpfc_hba *phba) | |
4290 | { | |
4291 | spin_lock_irq(&phba->hbalock); | |
4292 | phba->buffer_tag_count++; | |
4293 | /* | |
4294 | * Always set the QUE_BUFTAG_BIT to distiguish between | |
4295 | * a tag assigned by HBQ. | |
4296 | */ | |
4297 | phba->buffer_tag_count |= QUE_BUFTAG_BIT; | |
4298 | spin_unlock_irq(&phba->hbalock); | |
4299 | return phba->buffer_tag_count; | |
4300 | } | |
4301 | ||
e59058c4 JS |
4302 | /** |
4303 | * lpfc_sli_ring_taggedbuf_get: Search HBQ buffer associated with | |
4304 | * posted using CMD_QUE_XRI64_CX iocb. | |
4305 | * @phba: Pointer to HBA context object. | |
4306 | * @pring: Pointer to driver SLI ring object. | |
4307 | * @tag: Buffer tag. | |
4308 | * | |
4309 | * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq | |
4310 | * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX | |
4311 | * iocb is posted to the response ring with the tag of the buffer. | |
4312 | * This function searches the pring->postbufq list using the tag | |
4313 | * to find buffer associated with CMD_IOCB_RET_XRI64_CX | |
4314 | * iocb. If the buffer is found then lpfc_dmabuf object of the | |
4315 | * buffer is returned to the caller else NULL is returned. | |
4316 | * This function is called with no lock held. | |
4317 | **/ | |
76bb24ef JS |
4318 | struct lpfc_dmabuf * |
4319 | lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
4320 | uint32_t tag) | |
4321 | { | |
4322 | struct lpfc_dmabuf *mp, *next_mp; | |
4323 | struct list_head *slp = &pring->postbufq; | |
4324 | ||
4325 | /* Search postbufq, from the begining, looking for a match on tag */ | |
4326 | spin_lock_irq(&phba->hbalock); | |
4327 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { | |
4328 | if (mp->buffer_tag == tag) { | |
4329 | list_del_init(&mp->list); | |
4330 | pring->postbufq_cnt--; | |
4331 | spin_unlock_irq(&phba->hbalock); | |
4332 | return mp; | |
4333 | } | |
4334 | } | |
4335 | ||
4336 | spin_unlock_irq(&phba->hbalock); | |
4337 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
4338 | "0410 Cannot find virtual addr for buffer tag on " | |
4339 | "ring %d Data x%lx x%p x%p x%x\n", | |
4340 | pring->ringno, (unsigned long) tag, | |
4341 | slp->next, slp->prev, pring->postbufq_cnt); | |
4342 | ||
4343 | return NULL; | |
4344 | } | |
dea3101e | 4345 | |
e59058c4 JS |
4346 | /** |
4347 | * lpfc_sli_ringpostbuf_get: SLI2 buffer search function for | |
4348 | * unsolicited ct and els events. | |
4349 | * @phba: Pointer to HBA context object. | |
4350 | * @pring: Pointer to driver SLI ring object. | |
4351 | * @phys: DMA address of the buffer. | |
4352 | * | |
4353 | * This function searches the buffer list using the dma_address | |
4354 | * of unsolicited event to find the driver's lpfc_dmabuf object | |
4355 | * corresponding to the dma_address. The function returns the | |
4356 | * lpfc_dmabuf object if a buffer is found else it returns NULL. | |
4357 | * This function is called by the ct and els unsolicited event | |
4358 | * handlers to get the buffer associated with the unsolicited | |
4359 | * event. | |
4360 | * | |
4361 | * This function is called with no lock held. | |
4362 | **/ | |
dea3101e | 4363 | struct lpfc_dmabuf * |
4364 | lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
4365 | dma_addr_t phys) | |
4366 | { | |
4367 | struct lpfc_dmabuf *mp, *next_mp; | |
4368 | struct list_head *slp = &pring->postbufq; | |
4369 | ||
4370 | /* Search postbufq, from the begining, looking for a match on phys */ | |
2e0fef85 | 4371 | spin_lock_irq(&phba->hbalock); |
dea3101e | 4372 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { |
4373 | if (mp->phys == phys) { | |
4374 | list_del_init(&mp->list); | |
4375 | pring->postbufq_cnt--; | |
2e0fef85 | 4376 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 4377 | return mp; |
4378 | } | |
4379 | } | |
4380 | ||
2e0fef85 | 4381 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 4382 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 4383 | "0410 Cannot find virtual addr for mapped buf on " |
dea3101e | 4384 | "ring %d Data x%llx x%p x%p x%x\n", |
e8b62011 | 4385 | pring->ringno, (unsigned long long)phys, |
dea3101e | 4386 | slp->next, slp->prev, pring->postbufq_cnt); |
4387 | return NULL; | |
4388 | } | |
4389 | ||
e59058c4 JS |
4390 | /** |
4391 | * lpfc_sli_abort_els_cmpl: Completion handler for the els abort iocbs. | |
4392 | * @phba: Pointer to HBA context object. | |
4393 | * @cmdiocb: Pointer to driver command iocb object. | |
4394 | * @rspiocb: Pointer to driver response iocb object. | |
4395 | * | |
4396 | * This function is the completion handler for the abort iocbs for | |
4397 | * ELS commands. This function is called from the ELS ring event | |
4398 | * handler with no lock held. This function frees memory resources | |
4399 | * associated with the abort iocb. | |
4400 | **/ | |
dea3101e | 4401 | static void |
2e0fef85 JS |
4402 | lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
4403 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 4404 | { |
2e0fef85 | 4405 | IOCB_t *irsp = &rspiocb->iocb; |
2680eeaa | 4406 | uint16_t abort_iotag, abort_context; |
92d7f7b0 | 4407 | struct lpfc_iocbq *abort_iocb; |
2680eeaa JS |
4408 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
4409 | ||
4410 | abort_iocb = NULL; | |
2680eeaa JS |
4411 | |
4412 | if (irsp->ulpStatus) { | |
4413 | abort_context = cmdiocb->iocb.un.acxri.abortContextTag; | |
4414 | abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag; | |
4415 | ||
2e0fef85 | 4416 | spin_lock_irq(&phba->hbalock); |
2680eeaa JS |
4417 | if (abort_iotag != 0 && abort_iotag <= phba->sli.last_iotag) |
4418 | abort_iocb = phba->sli.iocbq_lookup[abort_iotag]; | |
4419 | ||
92d7f7b0 | 4420 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS | LOG_SLI, |
e8b62011 | 4421 | "0327 Cannot abort els iocb %p " |
92d7f7b0 JS |
4422 | "with tag %x context %x, abort status %x, " |
4423 | "abort code %x\n", | |
e8b62011 JS |
4424 | abort_iocb, abort_iotag, abort_context, |
4425 | irsp->ulpStatus, irsp->un.ulpWord[4]); | |
2680eeaa | 4426 | |
58da1ffb JS |
4427 | /* |
4428 | * If the iocb is not found in Firmware queue the iocb | |
4429 | * might have completed already. Do not free it again. | |
4430 | */ | |
9b379605 | 4431 | if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) { |
58da1ffb JS |
4432 | spin_unlock_irq(&phba->hbalock); |
4433 | lpfc_sli_release_iocbq(phba, cmdiocb); | |
4434 | return; | |
4435 | } | |
2680eeaa JS |
4436 | /* |
4437 | * make sure we have the right iocbq before taking it | |
4438 | * off the txcmplq and try to call completion routine. | |
4439 | */ | |
2e0fef85 JS |
4440 | if (!abort_iocb || |
4441 | abort_iocb->iocb.ulpContext != abort_context || | |
4442 | (abort_iocb->iocb_flag & LPFC_DRIVER_ABORTED) == 0) | |
4443 | spin_unlock_irq(&phba->hbalock); | |
4444 | else { | |
92d7f7b0 | 4445 | list_del_init(&abort_iocb->list); |
2680eeaa | 4446 | pring->txcmplq_cnt--; |
2e0fef85 | 4447 | spin_unlock_irq(&phba->hbalock); |
2680eeaa | 4448 | |
0ff10d46 JS |
4449 | /* Firmware could still be in progress of DMAing |
4450 | * payload, so don't free data buffer till after | |
4451 | * a hbeat. | |
4452 | */ | |
4453 | abort_iocb->iocb_flag |= LPFC_DELAY_MEM_FREE; | |
4454 | ||
92d7f7b0 JS |
4455 | abort_iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED; |
4456 | abort_iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT; | |
4457 | abort_iocb->iocb.un.ulpWord[4] = IOERR_SLI_ABORTED; | |
4458 | (abort_iocb->iocb_cmpl)(phba, abort_iocb, abort_iocb); | |
2680eeaa JS |
4459 | } |
4460 | } | |
4461 | ||
604a3e30 | 4462 | lpfc_sli_release_iocbq(phba, cmdiocb); |
dea3101e | 4463 | return; |
4464 | } | |
4465 | ||
e59058c4 JS |
4466 | /** |
4467 | * lpfc_ignore_els_cmpl: Completion handler for aborted ELS command. | |
4468 | * @phba: Pointer to HBA context object. | |
4469 | * @cmdiocb: Pointer to driver command iocb object. | |
4470 | * @rspiocb: Pointer to driver response iocb object. | |
4471 | * | |
4472 | * The function is called from SLI ring event handler with no | |
4473 | * lock held. This function is the completion handler for ELS commands | |
4474 | * which are aborted. The function frees memory resources used for | |
4475 | * the aborted ELS commands. | |
4476 | **/ | |
92d7f7b0 JS |
4477 | static void |
4478 | lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
4479 | struct lpfc_iocbq *rspiocb) | |
4480 | { | |
4481 | IOCB_t *irsp = &rspiocb->iocb; | |
4482 | ||
4483 | /* ELS cmd tag <ulpIoTag> completes */ | |
4484 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
e8b62011 | 4485 | "0133 Ignoring ELS cmd tag x%x completion Data: " |
92d7f7b0 | 4486 | "x%x x%x x%x\n", |
e8b62011 | 4487 | irsp->ulpIoTag, irsp->ulpStatus, |
92d7f7b0 | 4488 | irsp->un.ulpWord[4], irsp->ulpTimeout); |
858c9f6c JS |
4489 | if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) |
4490 | lpfc_ct_free_iocb(phba, cmdiocb); | |
4491 | else | |
4492 | lpfc_els_free_iocb(phba, cmdiocb); | |
92d7f7b0 JS |
4493 | return; |
4494 | } | |
4495 | ||
e59058c4 JS |
4496 | /** |
4497 | * lpfc_sli_issue_abort_iotag: Abort function for a command iocb. | |
4498 | * @phba: Pointer to HBA context object. | |
4499 | * @pring: Pointer to driver SLI ring object. | |
4500 | * @cmdiocb: Pointer to driver command iocb object. | |
4501 | * | |
4502 | * This function issues an abort iocb for the provided command | |
4503 | * iocb. This function is called with hbalock held. | |
4504 | * The function returns 0 when it fails due to memory allocation | |
4505 | * failure or when the command iocb is an abort request. | |
4506 | **/ | |
dea3101e | 4507 | int |
2e0fef85 JS |
4508 | lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
4509 | struct lpfc_iocbq *cmdiocb) | |
dea3101e | 4510 | { |
2e0fef85 | 4511 | struct lpfc_vport *vport = cmdiocb->vport; |
0bd4ca25 | 4512 | struct lpfc_iocbq *abtsiocbp; |
dea3101e | 4513 | IOCB_t *icmd = NULL; |
4514 | IOCB_t *iabt = NULL; | |
07951076 JS |
4515 | int retval = IOCB_ERROR; |
4516 | ||
92d7f7b0 JS |
4517 | /* |
4518 | * There are certain command types we don't want to abort. And we | |
4519 | * don't want to abort commands that are already in the process of | |
4520 | * being aborted. | |
07951076 JS |
4521 | */ |
4522 | icmd = &cmdiocb->iocb; | |
2e0fef85 | 4523 | if (icmd->ulpCommand == CMD_ABORT_XRI_CN || |
92d7f7b0 JS |
4524 | icmd->ulpCommand == CMD_CLOSE_XRI_CN || |
4525 | (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0) | |
07951076 JS |
4526 | return 0; |
4527 | ||
858c9f6c JS |
4528 | /* If we're unloading, don't abort iocb on the ELS ring, but change the |
4529 | * callback so that nothing happens when it finishes. | |
07951076 | 4530 | */ |
858c9f6c JS |
4531 | if ((vport->load_flag & FC_UNLOADING) && |
4532 | (pring->ringno == LPFC_ELS_RING)) { | |
92d7f7b0 JS |
4533 | if (cmdiocb->iocb_flag & LPFC_IO_FABRIC) |
4534 | cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl; | |
4535 | else | |
4536 | cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl; | |
07951076 | 4537 | goto abort_iotag_exit; |
92d7f7b0 | 4538 | } |
dea3101e | 4539 | |
4540 | /* issue ABTS for this IOCB based on iotag */ | |
92d7f7b0 | 4541 | abtsiocbp = __lpfc_sli_get_iocbq(phba); |
dea3101e | 4542 | if (abtsiocbp == NULL) |
4543 | return 0; | |
dea3101e | 4544 | |
07951076 JS |
4545 | /* This signals the response to set the correct status |
4546 | * before calling the completion handler. | |
4547 | */ | |
4548 | cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED; | |
4549 | ||
dea3101e | 4550 | iabt = &abtsiocbp->iocb; |
07951076 JS |
4551 | iabt->un.acxri.abortType = ABORT_TYPE_ABTS; |
4552 | iabt->un.acxri.abortContextTag = icmd->ulpContext; | |
4553 | iabt->un.acxri.abortIoTag = icmd->ulpIoTag; | |
4554 | iabt->ulpLe = 1; | |
4555 | iabt->ulpClass = icmd->ulpClass; | |
dea3101e | 4556 | |
2e0fef85 | 4557 | if (phba->link_state >= LPFC_LINK_UP) |
07951076 JS |
4558 | iabt->ulpCommand = CMD_ABORT_XRI_CN; |
4559 | else | |
4560 | iabt->ulpCommand = CMD_CLOSE_XRI_CN; | |
dea3101e | 4561 | |
07951076 | 4562 | abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl; |
5b8bd0c9 | 4563 | |
e8b62011 JS |
4564 | lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, |
4565 | "0339 Abort xri x%x, original iotag x%x, " | |
4566 | "abort cmd iotag x%x\n", | |
4567 | iabt->un.acxri.abortContextTag, | |
4568 | iabt->un.acxri.abortIoTag, abtsiocbp->iotag); | |
92d7f7b0 | 4569 | retval = __lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0); |
dea3101e | 4570 | |
07951076 | 4571 | abort_iotag_exit: |
2e0fef85 JS |
4572 | /* |
4573 | * Caller to this routine should check for IOCB_ERROR | |
4574 | * and handle it properly. This routine no longer removes | |
4575 | * iocb off txcmplq and call compl in case of IOCB_ERROR. | |
07951076 | 4576 | */ |
2e0fef85 | 4577 | return retval; |
dea3101e | 4578 | } |
4579 | ||
e59058c4 JS |
4580 | /** |
4581 | * lpfc_sli_validate_fcp_iocb: Filtering function, used to find commands | |
4582 | * associated with a vport/SCSI target/lun. | |
4583 | * @iocbq: Pointer to driver iocb object. | |
4584 | * @vport: Pointer to driver virtual port object. | |
4585 | * @tgt_id: SCSI ID of the target. | |
4586 | * @lun_id: LUN ID of the scsi device. | |
4587 | * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST | |
4588 | * | |
4589 | * This function acts as iocb filter for functions which abort or count | |
4590 | * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return | |
4591 | * 0 if the filtering criteria is met for the given iocb and will return | |
4592 | * 1 if the filtering criteria is not met. | |
4593 | * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the | |
4594 | * given iocb is for the SCSI device specified by vport, tgt_id and | |
4595 | * lun_id parameter. | |
4596 | * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the | |
4597 | * given iocb is for the SCSI target specified by vport and tgt_id | |
4598 | * parameters. | |
4599 | * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the | |
4600 | * given iocb is for the SCSI host associated with the given vport. | |
4601 | * This function is called with no locks held. | |
4602 | **/ | |
dea3101e | 4603 | static int |
51ef4c26 JS |
4604 | lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport, |
4605 | uint16_t tgt_id, uint64_t lun_id, | |
0bd4ca25 | 4606 | lpfc_ctx_cmd ctx_cmd) |
dea3101e | 4607 | { |
0bd4ca25 | 4608 | struct lpfc_scsi_buf *lpfc_cmd; |
dea3101e | 4609 | int rc = 1; |
4610 | ||
0bd4ca25 JSEC |
4611 | if (!(iocbq->iocb_flag & LPFC_IO_FCP)) |
4612 | return rc; | |
4613 | ||
51ef4c26 JS |
4614 | if (iocbq->vport != vport) |
4615 | return rc; | |
4616 | ||
0bd4ca25 | 4617 | lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq); |
0bd4ca25 | 4618 | |
495a714c | 4619 | if (lpfc_cmd->pCmd == NULL) |
dea3101e | 4620 | return rc; |
4621 | ||
4622 | switch (ctx_cmd) { | |
4623 | case LPFC_CTX_LUN: | |
495a714c JS |
4624 | if ((lpfc_cmd->rdata->pnode) && |
4625 | (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) && | |
4626 | (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id)) | |
dea3101e | 4627 | rc = 0; |
4628 | break; | |
4629 | case LPFC_CTX_TGT: | |
495a714c JS |
4630 | if ((lpfc_cmd->rdata->pnode) && |
4631 | (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id)) | |
dea3101e | 4632 | rc = 0; |
4633 | break; | |
dea3101e | 4634 | case LPFC_CTX_HOST: |
4635 | rc = 0; | |
4636 | break; | |
4637 | default: | |
4638 | printk(KERN_ERR "%s: Unknown context cmd type, value %d\n", | |
cadbd4a5 | 4639 | __func__, ctx_cmd); |
dea3101e | 4640 | break; |
4641 | } | |
4642 | ||
4643 | return rc; | |
4644 | } | |
4645 | ||
e59058c4 JS |
4646 | /** |
4647 | * lpfc_sli_sum_iocb: Function to count the number of FCP iocbs pending. | |
4648 | * @vport: Pointer to virtual port. | |
4649 | * @tgt_id: SCSI ID of the target. | |
4650 | * @lun_id: LUN ID of the scsi device. | |
4651 | * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST. | |
4652 | * | |
4653 | * This function returns number of FCP commands pending for the vport. | |
4654 | * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP | |
4655 | * commands pending on the vport associated with SCSI device specified | |
4656 | * by tgt_id and lun_id parameters. | |
4657 | * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP | |
4658 | * commands pending on the vport associated with SCSI target specified | |
4659 | * by tgt_id parameter. | |
4660 | * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP | |
4661 | * commands pending on the vport. | |
4662 | * This function returns the number of iocbs which satisfy the filter. | |
4663 | * This function is called without any lock held. | |
4664 | **/ | |
dea3101e | 4665 | int |
51ef4c26 JS |
4666 | lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id, |
4667 | lpfc_ctx_cmd ctx_cmd) | |
dea3101e | 4668 | { |
51ef4c26 | 4669 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 JSEC |
4670 | struct lpfc_iocbq *iocbq; |
4671 | int sum, i; | |
dea3101e | 4672 | |
0bd4ca25 JSEC |
4673 | for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) { |
4674 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 4675 | |
51ef4c26 JS |
4676 | if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id, |
4677 | ctx_cmd) == 0) | |
0bd4ca25 | 4678 | sum++; |
dea3101e | 4679 | } |
0bd4ca25 | 4680 | |
dea3101e | 4681 | return sum; |
4682 | } | |
4683 | ||
e59058c4 JS |
4684 | /** |
4685 | * lpfc_sli_abort_fcp_cmpl: Completion handler function for an aborted | |
4686 | * FCP iocb. | |
4687 | * @phba: Pointer to HBA context object | |
4688 | * @cmdiocb: Pointer to command iocb object. | |
4689 | * @rspiocb: Pointer to response iocb object. | |
4690 | * | |
4691 | * This function is called when an aborted FCP iocb completes. This | |
4692 | * function is called by the ring event handler with no lock held. | |
4693 | * This function frees the iocb. | |
4694 | **/ | |
5eb95af0 | 4695 | void |
2e0fef85 JS |
4696 | lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
4697 | struct lpfc_iocbq *rspiocb) | |
5eb95af0 | 4698 | { |
604a3e30 | 4699 | lpfc_sli_release_iocbq(phba, cmdiocb); |
5eb95af0 JSEC |
4700 | return; |
4701 | } | |
4702 | ||
e59058c4 JS |
4703 | /** |
4704 | * lpfc_sli_abort_iocb: This function issue abort for all SCSI commands | |
4705 | * pending on a SCSI host(vport)/target/lun. | |
4706 | * @vport: Pointer to virtual port. | |
4707 | * @pring: Pointer to driver SLI ring object. | |
4708 | * @tgt_id: SCSI ID of the target. | |
4709 | * @lun_id: LUN ID of the scsi device. | |
4710 | * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST. | |
4711 | * | |
4712 | * This function sends an abort command for every SCSI command | |
4713 | * associated with the given virtual port pending on the ring | |
4714 | * filtered by lpfc_sli_validate_fcp_iocb function. | |
4715 | * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the | |
4716 | * FCP iocbs associated with lun specified by tgt_id and lun_id | |
4717 | * parameters | |
4718 | * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the | |
4719 | * FCP iocbs associated with SCSI target specified by tgt_id parameter. | |
4720 | * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all | |
4721 | * FCP iocbs associated with virtual port. | |
4722 | * This function returns number of iocbs it failed to abort. | |
4723 | * This function is called with no locks held. | |
4724 | **/ | |
dea3101e | 4725 | int |
51ef4c26 JS |
4726 | lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring, |
4727 | uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd) | |
dea3101e | 4728 | { |
51ef4c26 | 4729 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 JSEC |
4730 | struct lpfc_iocbq *iocbq; |
4731 | struct lpfc_iocbq *abtsiocb; | |
dea3101e | 4732 | IOCB_t *cmd = NULL; |
dea3101e | 4733 | int errcnt = 0, ret_val = 0; |
0bd4ca25 | 4734 | int i; |
dea3101e | 4735 | |
0bd4ca25 JSEC |
4736 | for (i = 1; i <= phba->sli.last_iotag; i++) { |
4737 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 4738 | |
51ef4c26 | 4739 | if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id, |
2e0fef85 | 4740 | abort_cmd) != 0) |
dea3101e | 4741 | continue; |
4742 | ||
4743 | /* issue ABTS for this IOCB based on iotag */ | |
0bd4ca25 | 4744 | abtsiocb = lpfc_sli_get_iocbq(phba); |
dea3101e | 4745 | if (abtsiocb == NULL) { |
4746 | errcnt++; | |
4747 | continue; | |
4748 | } | |
dea3101e | 4749 | |
0bd4ca25 | 4750 | cmd = &iocbq->iocb; |
dea3101e | 4751 | abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS; |
4752 | abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext; | |
4753 | abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag; | |
4754 | abtsiocb->iocb.ulpLe = 1; | |
4755 | abtsiocb->iocb.ulpClass = cmd->ulpClass; | |
2e0fef85 | 4756 | abtsiocb->vport = phba->pport; |
dea3101e | 4757 | |
2e0fef85 | 4758 | if (lpfc_is_link_up(phba)) |
dea3101e | 4759 | abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN; |
4760 | else | |
4761 | abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN; | |
4762 | ||
5eb95af0 JSEC |
4763 | /* Setup callback routine and issue the command. */ |
4764 | abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl; | |
dea3101e | 4765 | ret_val = lpfc_sli_issue_iocb(phba, pring, abtsiocb, 0); |
4766 | if (ret_val == IOCB_ERROR) { | |
604a3e30 | 4767 | lpfc_sli_release_iocbq(phba, abtsiocb); |
dea3101e | 4768 | errcnt++; |
4769 | continue; | |
4770 | } | |
4771 | } | |
4772 | ||
4773 | return errcnt; | |
4774 | } | |
4775 | ||
e59058c4 JS |
4776 | /** |
4777 | * lpfc_sli_wake_iocb_wait: iocb completion handler for iocb issued using | |
4778 | * lpfc_sli_issue_iocb_wait. | |
4779 | * @phba: Pointer to HBA context object. | |
4780 | * @cmdiocbq: Pointer to command iocb. | |
4781 | * @rspiocbq: Pointer to response iocb. | |
4782 | * | |
4783 | * This function is the completion handler for iocbs issued using | |
4784 | * lpfc_sli_issue_iocb_wait function. This function is called by the | |
4785 | * ring event handler function without any lock held. This function | |
4786 | * can be called from both worker thread context and interrupt | |
4787 | * context. This function also can be called from other thread which | |
4788 | * cleans up the SLI layer objects. | |
4789 | * This function copy the contents of the response iocb to the | |
4790 | * response iocb memory object provided by the caller of | |
4791 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
4792 | * sleeps for the iocb completion. | |
4793 | **/ | |
68876920 JSEC |
4794 | static void |
4795 | lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba, | |
4796 | struct lpfc_iocbq *cmdiocbq, | |
4797 | struct lpfc_iocbq *rspiocbq) | |
dea3101e | 4798 | { |
68876920 JSEC |
4799 | wait_queue_head_t *pdone_q; |
4800 | unsigned long iflags; | |
dea3101e | 4801 | |
2e0fef85 | 4802 | spin_lock_irqsave(&phba->hbalock, iflags); |
68876920 JSEC |
4803 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; |
4804 | if (cmdiocbq->context2 && rspiocbq) | |
4805 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, | |
4806 | &rspiocbq->iocb, sizeof(IOCB_t)); | |
4807 | ||
4808 | pdone_q = cmdiocbq->context_un.wait_queue; | |
68876920 JSEC |
4809 | if (pdone_q) |
4810 | wake_up(pdone_q); | |
858c9f6c | 4811 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
dea3101e | 4812 | return; |
4813 | } | |
4814 | ||
e59058c4 JS |
4815 | /** |
4816 | * lpfc_sli_issue_iocb_wait: Synchronous function to issue iocb commands. | |
4817 | * @phba: Pointer to HBA context object.. | |
4818 | * @pring: Pointer to sli ring. | |
4819 | * @piocb: Pointer to command iocb. | |
4820 | * @prspiocbq: Pointer to response iocb. | |
4821 | * @timeout: Timeout in number of seconds. | |
4822 | * | |
4823 | * This function issues the iocb to firmware and waits for the | |
4824 | * iocb to complete. If the iocb command is not | |
4825 | * completed within timeout seconds, it returns IOCB_TIMEDOUT. | |
4826 | * Caller should not free the iocb resources if this function | |
4827 | * returns IOCB_TIMEDOUT. | |
4828 | * The function waits for the iocb completion using an | |
4829 | * non-interruptible wait. | |
4830 | * This function will sleep while waiting for iocb completion. | |
4831 | * So, this function should not be called from any context which | |
4832 | * does not allow sleeping. Due to the same reason, this function | |
4833 | * cannot be called with interrupt disabled. | |
4834 | * This function assumes that the iocb completions occur while | |
4835 | * this function sleep. So, this function cannot be called from | |
4836 | * the thread which process iocb completion for this ring. | |
4837 | * This function clears the iocb_flag of the iocb object before | |
4838 | * issuing the iocb and the iocb completion handler sets this | |
4839 | * flag and wakes this thread when the iocb completes. | |
4840 | * The contents of the response iocb will be copied to prspiocbq | |
4841 | * by the completion handler when the command completes. | |
4842 | * This function returns IOCB_SUCCESS when success. | |
4843 | * This function is called with no lock held. | |
4844 | **/ | |
dea3101e | 4845 | int |
2e0fef85 JS |
4846 | lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba, |
4847 | struct lpfc_sli_ring *pring, | |
4848 | struct lpfc_iocbq *piocb, | |
4849 | struct lpfc_iocbq *prspiocbq, | |
68876920 | 4850 | uint32_t timeout) |
dea3101e | 4851 | { |
7259f0d0 | 4852 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q); |
68876920 JSEC |
4853 | long timeleft, timeout_req = 0; |
4854 | int retval = IOCB_SUCCESS; | |
875fbdfe | 4855 | uint32_t creg_val; |
dea3101e | 4856 | |
4857 | /* | |
68876920 JSEC |
4858 | * If the caller has provided a response iocbq buffer, then context2 |
4859 | * is NULL or its an error. | |
dea3101e | 4860 | */ |
68876920 JSEC |
4861 | if (prspiocbq) { |
4862 | if (piocb->context2) | |
4863 | return IOCB_ERROR; | |
4864 | piocb->context2 = prspiocbq; | |
dea3101e | 4865 | } |
4866 | ||
68876920 JSEC |
4867 | piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait; |
4868 | piocb->context_un.wait_queue = &done_q; | |
4869 | piocb->iocb_flag &= ~LPFC_IO_WAKE; | |
dea3101e | 4870 | |
875fbdfe JSEC |
4871 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
4872 | creg_val = readl(phba->HCregaddr); | |
4873 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); | |
4874 | writel(creg_val, phba->HCregaddr); | |
4875 | readl(phba->HCregaddr); /* flush */ | |
4876 | } | |
4877 | ||
68876920 JSEC |
4878 | retval = lpfc_sli_issue_iocb(phba, pring, piocb, 0); |
4879 | if (retval == IOCB_SUCCESS) { | |
4880 | timeout_req = timeout * HZ; | |
68876920 JSEC |
4881 | timeleft = wait_event_timeout(done_q, |
4882 | piocb->iocb_flag & LPFC_IO_WAKE, | |
4883 | timeout_req); | |
dea3101e | 4884 | |
7054a606 JS |
4885 | if (piocb->iocb_flag & LPFC_IO_WAKE) { |
4886 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 4887 | "0331 IOCB wake signaled\n"); |
7054a606 | 4888 | } else if (timeleft == 0) { |
68876920 | 4889 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 JS |
4890 | "0338 IOCB wait timeout error - no " |
4891 | "wake response Data x%x\n", timeout); | |
68876920 | 4892 | retval = IOCB_TIMEDOUT; |
7054a606 | 4893 | } else { |
68876920 | 4894 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 JS |
4895 | "0330 IOCB wake NOT set, " |
4896 | "Data x%x x%lx\n", | |
68876920 JSEC |
4897 | timeout, (timeleft / jiffies)); |
4898 | retval = IOCB_TIMEDOUT; | |
dea3101e | 4899 | } |
68876920 JSEC |
4900 | } else { |
4901 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 JS |
4902 | ":0332 IOCB wait issue failed, Data x%x\n", |
4903 | retval); | |
68876920 | 4904 | retval = IOCB_ERROR; |
dea3101e | 4905 | } |
4906 | ||
875fbdfe JSEC |
4907 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
4908 | creg_val = readl(phba->HCregaddr); | |
4909 | creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); | |
4910 | writel(creg_val, phba->HCregaddr); | |
4911 | readl(phba->HCregaddr); /* flush */ | |
4912 | } | |
4913 | ||
68876920 JSEC |
4914 | if (prspiocbq) |
4915 | piocb->context2 = NULL; | |
4916 | ||
4917 | piocb->context_un.wait_queue = NULL; | |
4918 | piocb->iocb_cmpl = NULL; | |
dea3101e | 4919 | return retval; |
4920 | } | |
68876920 | 4921 | |
e59058c4 JS |
4922 | /** |
4923 | * lpfc_sli_issue_mbox_wait: Synchronous function to issue mailbox. | |
4924 | * @phba: Pointer to HBA context object. | |
4925 | * @pmboxq: Pointer to driver mailbox object. | |
4926 | * @timeout: Timeout in number of seconds. | |
4927 | * | |
4928 | * This function issues the mailbox to firmware and waits for the | |
4929 | * mailbox command to complete. If the mailbox command is not | |
4930 | * completed within timeout seconds, it returns MBX_TIMEOUT. | |
4931 | * The function waits for the mailbox completion using an | |
4932 | * interruptible wait. If the thread is woken up due to a | |
4933 | * signal, MBX_TIMEOUT error is returned to the caller. Caller | |
4934 | * should not free the mailbox resources, if this function returns | |
4935 | * MBX_TIMEOUT. | |
4936 | * This function will sleep while waiting for mailbox completion. | |
4937 | * So, this function should not be called from any context which | |
4938 | * does not allow sleeping. Due to the same reason, this function | |
4939 | * cannot be called with interrupt disabled. | |
4940 | * This function assumes that the mailbox completion occurs while | |
4941 | * this function sleep. So, this function cannot be called from | |
4942 | * the worker thread which processes mailbox completion. | |
4943 | * This function is called in the context of HBA management | |
4944 | * applications. | |
4945 | * This function returns MBX_SUCCESS when successful. | |
4946 | * This function is called with no lock held. | |
4947 | **/ | |
dea3101e | 4948 | int |
2e0fef85 | 4949 | lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq, |
dea3101e | 4950 | uint32_t timeout) |
4951 | { | |
7259f0d0 | 4952 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q); |
dea3101e | 4953 | int retval; |
858c9f6c | 4954 | unsigned long flag; |
dea3101e | 4955 | |
4956 | /* The caller must leave context1 empty. */ | |
98c9ea5c | 4957 | if (pmboxq->context1) |
2e0fef85 | 4958 | return MBX_NOT_FINISHED; |
dea3101e | 4959 | |
495a714c | 4960 | pmboxq->mbox_flag &= ~LPFC_MBX_WAKE; |
dea3101e | 4961 | /* setup wake call as IOCB callback */ |
4962 | pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait; | |
4963 | /* setup context field to pass wait_queue pointer to wake function */ | |
4964 | pmboxq->context1 = &done_q; | |
4965 | ||
dea3101e | 4966 | /* now issue the command */ |
4967 | retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); | |
4968 | ||
4969 | if (retval == MBX_BUSY || retval == MBX_SUCCESS) { | |
7054a606 JS |
4970 | wait_event_interruptible_timeout(done_q, |
4971 | pmboxq->mbox_flag & LPFC_MBX_WAKE, | |
4972 | timeout * HZ); | |
4973 | ||
858c9f6c | 4974 | spin_lock_irqsave(&phba->hbalock, flag); |
dea3101e | 4975 | pmboxq->context1 = NULL; |
7054a606 JS |
4976 | /* |
4977 | * if LPFC_MBX_WAKE flag is set the mailbox is completed | |
4978 | * else do not free the resources. | |
4979 | */ | |
4980 | if (pmboxq->mbox_flag & LPFC_MBX_WAKE) | |
dea3101e | 4981 | retval = MBX_SUCCESS; |
858c9f6c | 4982 | else { |
7054a606 | 4983 | retval = MBX_TIMEOUT; |
858c9f6c JS |
4984 | pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
4985 | } | |
4986 | spin_unlock_irqrestore(&phba->hbalock, flag); | |
dea3101e | 4987 | } |
4988 | ||
dea3101e | 4989 | return retval; |
4990 | } | |
4991 | ||
e59058c4 JS |
4992 | /** |
4993 | * lpfc_sli_flush_mbox_queue: mailbox queue cleanup function. | |
4994 | * @phba: Pointer to HBA context. | |
4995 | * | |
4996 | * This function is called to cleanup any pending mailbox | |
4997 | * objects in the driver queue before bringing the HBA offline. | |
4998 | * This function is called while resetting the HBA. | |
4999 | * The function is called without any lock held. The function | |
5000 | * takes hbalock to update SLI data structure. | |
5001 | * This function returns 1 when there is an active mailbox | |
5002 | * command pending else returns 0. | |
5003 | **/ | |
b4c02652 JS |
5004 | int |
5005 | lpfc_sli_flush_mbox_queue(struct lpfc_hba * phba) | |
5006 | { | |
2e0fef85 | 5007 | struct lpfc_vport *vport = phba->pport; |
b4c02652 | 5008 | int i = 0; |
ed957684 | 5009 | uint32_t ha_copy; |
b4c02652 | 5010 | |
2e0fef85 | 5011 | while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE && !vport->stopped) { |
b4c02652 JS |
5012 | if (i++ > LPFC_MBOX_TMO * 1000) |
5013 | return 1; | |
5014 | ||
ed957684 JS |
5015 | /* |
5016 | * Call lpfc_sli_handle_mb_event only if a mailbox cmd | |
5017 | * did finish. This way we won't get the misleading | |
5018 | * "Stray Mailbox Interrupt" message. | |
5019 | */ | |
5020 | spin_lock_irq(&phba->hbalock); | |
5021 | ha_copy = phba->work_ha; | |
5022 | phba->work_ha &= ~HA_MBATT; | |
5023 | spin_unlock_irq(&phba->hbalock); | |
5024 | ||
5025 | if (ha_copy & HA_MBATT) | |
5026 | if (lpfc_sli_handle_mb_event(phba) == 0) | |
5027 | i = 0; | |
b4c02652 JS |
5028 | |
5029 | msleep(1); | |
5030 | } | |
5031 | ||
5032 | return (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) ? 1 : 0; | |
5033 | } | |
5034 | ||
e59058c4 JS |
5035 | /** |
5036 | * lpfc_intr_handler: The interrupt handler of lpfc driver. | |
5037 | * @irq: Interrupt number. | |
5038 | * @dev_id: The device context pointer. | |
5039 | * | |
5040 | * This function is called from the PCI layer when there is | |
5041 | * an event in the HBA which requires driver attention. When | |
5042 | * the PCI slot is in error recovery or the HBA is undergoing | |
5043 | * initialization the interrupt handler will not process the | |
5044 | * interrupt. | |
5045 | * The error attention, link attention and els ring attention | |
5046 | * events are handled by the worker thread. The interrupt | |
5047 | * handler signals the worker thread and returns for these | |
5048 | * events. | |
5049 | * The SCSI ring event and mailbox events are handled in the | |
5050 | * interrupt context. | |
5051 | * This function is called without any lock held. It gets the | |
5052 | * hbalock to access and update SLI data structures. | |
5053 | * This function returns IRQ_HANDLED when interrupt is handled | |
5054 | * else it returns IRQ_NONE. | |
5055 | **/ | |
dea3101e | 5056 | irqreturn_t |
7d12e780 | 5057 | lpfc_intr_handler(int irq, void *dev_id) |
dea3101e | 5058 | { |
2e0fef85 | 5059 | struct lpfc_hba *phba; |
dea3101e | 5060 | uint32_t ha_copy; |
5061 | uint32_t work_ha_copy; | |
5062 | unsigned long status; | |
dea3101e | 5063 | uint32_t control; |
5064 | ||
92d7f7b0 | 5065 | MAILBOX_t *mbox, *pmbox; |
858c9f6c JS |
5066 | struct lpfc_vport *vport; |
5067 | struct lpfc_nodelist *ndlp; | |
5068 | struct lpfc_dmabuf *mp; | |
92d7f7b0 JS |
5069 | LPFC_MBOXQ_t *pmb; |
5070 | int rc; | |
5071 | ||
dea3101e | 5072 | /* |
5073 | * Get the driver's phba structure from the dev_id and | |
5074 | * assume the HBA is not interrupting. | |
5075 | */ | |
5076 | phba = (struct lpfc_hba *) dev_id; | |
5077 | ||
5078 | if (unlikely(!phba)) | |
5079 | return IRQ_NONE; | |
5080 | ||
8d63f375 LV |
5081 | /* If the pci channel is offline, ignore all the interrupts. */ |
5082 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
5083 | return IRQ_NONE; | |
5084 | ||
dea3101e | 5085 | phba->sli.slistat.sli_intr++; |
5086 | ||
5087 | /* | |
5088 | * Call the HBA to see if it is interrupting. If not, don't claim | |
5089 | * the interrupt | |
5090 | */ | |
5091 | ||
5092 | /* Ignore all interrupts during initialization. */ | |
2e0fef85 | 5093 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) |
dea3101e | 5094 | return IRQ_NONE; |
5095 | ||
5096 | /* | |
5097 | * Read host attention register to determine interrupt source | |
5098 | * Clear Attention Sources, except Error Attention (to | |
5099 | * preserve status) and Link Attention | |
5100 | */ | |
2e0fef85 | 5101 | spin_lock(&phba->hbalock); |
34b02dcd JS |
5102 | if (phba->sli3_options & LPFC_SLI3_INB_ENABLED && |
5103 | (phba->inb_last_counter != *phba->inb_counter)) { | |
5104 | phba->inb_last_counter = *phba->inb_counter; | |
5105 | ha_copy = le32_to_cpu(*phba->inb_ha_copy); | |
5106 | } else | |
5107 | ha_copy = readl(phba->HAregaddr); | |
5108 | if (unlikely(!ha_copy)) { | |
5109 | spin_unlock(&phba->hbalock); | |
5110 | return IRQ_NONE; | |
5111 | } | |
ebdbe65f JS |
5112 | /* If somebody is waiting to handle an eratt don't process it |
5113 | * here. The brdkill function will do this. | |
5114 | */ | |
2e0fef85 | 5115 | if (phba->link_flag & LS_IGNORE_ERATT) |
ebdbe65f | 5116 | ha_copy &= ~HA_ERATT; |
dea3101e | 5117 | writel((ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr); |
5118 | readl(phba->HAregaddr); /* flush */ | |
2e0fef85 | 5119 | spin_unlock(&phba->hbalock); |
dea3101e | 5120 | |
dea3101e | 5121 | work_ha_copy = ha_copy & phba->work_ha_mask; |
5122 | ||
5123 | if (unlikely(work_ha_copy)) { | |
5124 | if (work_ha_copy & HA_LATT) { | |
5125 | if (phba->sli.sli_flag & LPFC_PROCESS_LA) { | |
5126 | /* | |
5127 | * Turn off Link Attention interrupts | |
5128 | * until CLEAR_LA done | |
5129 | */ | |
2e0fef85 | 5130 | spin_lock(&phba->hbalock); |
dea3101e | 5131 | phba->sli.sli_flag &= ~LPFC_PROCESS_LA; |
5132 | control = readl(phba->HCregaddr); | |
5133 | control &= ~HC_LAINT_ENA; | |
5134 | writel(control, phba->HCregaddr); | |
5135 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 | 5136 | spin_unlock(&phba->hbalock); |
dea3101e | 5137 | } |
5138 | else | |
5139 | work_ha_copy &= ~HA_LATT; | |
5140 | } | |
5141 | ||
5142 | if (work_ha_copy & ~(HA_ERATT|HA_MBATT|HA_LATT)) { | |
858c9f6c JS |
5143 | /* |
5144 | * Turn off Slow Rings interrupts, LPFC_ELS_RING is | |
5145 | * the only slow ring. | |
5146 | */ | |
5147 | status = (work_ha_copy & | |
5148 | (HA_RXMASK << (4*LPFC_ELS_RING))); | |
5149 | status >>= (4*LPFC_ELS_RING); | |
5150 | if (status & HA_RXMASK) { | |
5151 | spin_lock(&phba->hbalock); | |
5152 | control = readl(phba->HCregaddr); | |
a58cbd52 JS |
5153 | |
5154 | lpfc_debugfs_slow_ring_trc(phba, | |
5155 | "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x", | |
5156 | control, status, | |
5157 | (uint32_t)phba->sli.slistat.sli_intr); | |
5158 | ||
858c9f6c | 5159 | if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) { |
a58cbd52 JS |
5160 | lpfc_debugfs_slow_ring_trc(phba, |
5161 | "ISR Disable ring:" | |
5162 | "pwork:x%x hawork:x%x wait:x%x", | |
5163 | phba->work_ha, work_ha_copy, | |
5164 | (uint32_t)((unsigned long) | |
5e9d9b82 | 5165 | &phba->work_waitq)); |
a58cbd52 | 5166 | |
858c9f6c JS |
5167 | control &= |
5168 | ~(HC_R0INT_ENA << LPFC_ELS_RING); | |
dea3101e | 5169 | writel(control, phba->HCregaddr); |
5170 | readl(phba->HCregaddr); /* flush */ | |
dea3101e | 5171 | } |
a58cbd52 JS |
5172 | else { |
5173 | lpfc_debugfs_slow_ring_trc(phba, | |
5174 | "ISR slow ring: pwork:" | |
5175 | "x%x hawork:x%x wait:x%x", | |
5176 | phba->work_ha, work_ha_copy, | |
5177 | (uint32_t)((unsigned long) | |
5e9d9b82 | 5178 | &phba->work_waitq)); |
a58cbd52 | 5179 | } |
858c9f6c | 5180 | spin_unlock(&phba->hbalock); |
dea3101e | 5181 | } |
5182 | } | |
5183 | ||
5184 | if (work_ha_copy & HA_ERATT) { | |
dea3101e | 5185 | /* |
5186 | * There was a link/board error. Read the | |
5187 | * status register to retrieve the error event | |
5188 | * and process it. | |
5189 | */ | |
5190 | phba->sli.slistat.err_attn_event++; | |
5191 | /* Save status info */ | |
5192 | phba->work_hs = readl(phba->HSregaddr); | |
5193 | phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); | |
5194 | phba->work_status[1] = readl(phba->MBslimaddr + 0xac); | |
5195 | ||
5196 | /* Clear Chip error bit */ | |
5197 | writel(HA_ERATT, phba->HAregaddr); | |
5198 | readl(phba->HAregaddr); /* flush */ | |
2e0fef85 | 5199 | phba->pport->stopped = 1; |
dea3101e | 5200 | } |
5201 | ||
97eab634 | 5202 | spin_lock(&phba->hbalock); |
92d7f7b0 JS |
5203 | if ((work_ha_copy & HA_MBATT) && |
5204 | (phba->sli.mbox_active)) { | |
5205 | pmb = phba->sli.mbox_active; | |
5206 | pmbox = &pmb->mb; | |
34b02dcd | 5207 | mbox = phba->mbox; |
858c9f6c | 5208 | vport = pmb->vport; |
92d7f7b0 JS |
5209 | |
5210 | /* First check out the status word */ | |
5211 | lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t)); | |
5212 | if (pmbox->mbxOwner != OWN_HOST) { | |
97eab634 | 5213 | spin_unlock(&phba->hbalock); |
92d7f7b0 JS |
5214 | /* |
5215 | * Stray Mailbox Interrupt, mbxCommand <cmd> | |
5216 | * mbxStatus <status> | |
5217 | */ | |
09372820 | 5218 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | |
92d7f7b0 | 5219 | LOG_SLI, |
e8b62011 | 5220 | "(%d):0304 Stray Mailbox " |
92d7f7b0 JS |
5221 | "Interrupt mbxCommand x%x " |
5222 | "mbxStatus x%x\n", | |
e8b62011 | 5223 | (vport ? vport->vpi : 0), |
92d7f7b0 JS |
5224 | pmbox->mbxCommand, |
5225 | pmbox->mbxStatus); | |
09372820 JS |
5226 | /* clear mailbox attention bit */ |
5227 | work_ha_copy &= ~HA_MBATT; | |
5228 | } else { | |
97eab634 JS |
5229 | phba->sli.mbox_active = NULL; |
5230 | spin_unlock(&phba->hbalock); | |
09372820 JS |
5231 | phba->last_completion_time = jiffies; |
5232 | del_timer(&phba->sli.mbox_tmo); | |
09372820 JS |
5233 | if (pmb->mbox_cmpl) { |
5234 | lpfc_sli_pcimem_bcopy(mbox, pmbox, | |
5235 | MAILBOX_CMD_SIZE); | |
5236 | } | |
5237 | if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) { | |
5238 | pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG; | |
5239 | ||
5240 | lpfc_debugfs_disc_trc(vport, | |
5241 | LPFC_DISC_TRC_MBOX_VPORT, | |
5242 | "MBOX dflt rpi: : " | |
5243 | "status:x%x rpi:x%x", | |
5244 | (uint32_t)pmbox->mbxStatus, | |
5245 | pmbox->un.varWords[0], 0); | |
5246 | ||
5247 | if (!pmbox->mbxStatus) { | |
5248 | mp = (struct lpfc_dmabuf *) | |
5249 | (pmb->context1); | |
5250 | ndlp = (struct lpfc_nodelist *) | |
5251 | pmb->context2; | |
5252 | ||
5253 | /* Reg_LOGIN of dflt RPI was | |
5254 | * successful. new lets get | |
5255 | * rid of the RPI using the | |
5256 | * same mbox buffer. | |
5257 | */ | |
5258 | lpfc_unreg_login(phba, | |
5259 | vport->vpi, | |
5260 | pmbox->un.varWords[0], | |
5261 | pmb); | |
5262 | pmb->mbox_cmpl = | |
5263 | lpfc_mbx_cmpl_dflt_rpi; | |
5264 | pmb->context1 = mp; | |
5265 | pmb->context2 = ndlp; | |
5266 | pmb->vport = vport; | |
58da1ffb JS |
5267 | rc = lpfc_sli_issue_mbox(phba, |
5268 | pmb, | |
5269 | MBX_NOWAIT); | |
5270 | if (rc != MBX_BUSY) | |
5271 | lpfc_printf_log(phba, | |
5272 | KERN_ERR, | |
5273 | LOG_MBOX | LOG_SLI, | |
5274 | "0306 rc should have" | |
5275 | "been MBX_BUSY"); | |
09372820 JS |
5276 | goto send_current_mbox; |
5277 | } | |
858c9f6c | 5278 | } |
09372820 JS |
5279 | spin_lock(&phba->pport->work_port_lock); |
5280 | phba->pport->work_port_events &= | |
5281 | ~WORKER_MBOX_TMO; | |
5282 | spin_unlock(&phba->pport->work_port_lock); | |
5283 | lpfc_mbox_cmpl_put(phba, pmb); | |
858c9f6c | 5284 | } |
97eab634 JS |
5285 | } else |
5286 | spin_unlock(&phba->hbalock); | |
92d7f7b0 JS |
5287 | if ((work_ha_copy & HA_MBATT) && |
5288 | (phba->sli.mbox_active == NULL)) { | |
858c9f6c | 5289 | send_current_mbox: |
92d7f7b0 | 5290 | /* Process next mailbox command if there is one */ |
58da1ffb JS |
5291 | do { |
5292 | rc = lpfc_sli_issue_mbox(phba, NULL, | |
5293 | MBX_NOWAIT); | |
5294 | } while (rc == MBX_NOT_FINISHED); | |
5295 | if (rc != MBX_SUCCESS) | |
5296 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | | |
5297 | LOG_SLI, "0349 rc should be " | |
5298 | "MBX_SUCCESS"); | |
92d7f7b0 JS |
5299 | } |
5300 | ||
2e0fef85 | 5301 | spin_lock(&phba->hbalock); |
dea3101e | 5302 | phba->work_ha |= work_ha_copy; |
2e0fef85 | 5303 | spin_unlock(&phba->hbalock); |
5e9d9b82 | 5304 | lpfc_worker_wake_up(phba); |
dea3101e | 5305 | } |
5306 | ||
5307 | ha_copy &= ~(phba->work_ha_mask); | |
5308 | ||
5309 | /* | |
5310 | * Process all events on FCP ring. Take the optimized path for | |
5311 | * FCP IO. Any other IO is slow path and is handled by | |
5312 | * the worker thread. | |
5313 | */ | |
5314 | status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); | |
5315 | status >>= (4*LPFC_FCP_RING); | |
858c9f6c | 5316 | if (status & HA_RXMASK) |
dea3101e | 5317 | lpfc_sli_handle_fast_ring_event(phba, |
5318 | &phba->sli.ring[LPFC_FCP_RING], | |
5319 | status); | |
a4bc3379 JS |
5320 | |
5321 | if (phba->cfg_multi_ring_support == 2) { | |
5322 | /* | |
5323 | * Process all events on extra ring. Take the optimized path | |
5324 | * for extra ring IO. Any other IO is slow path and is handled | |
5325 | * by the worker thread. | |
5326 | */ | |
5327 | status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING))); | |
5328 | status >>= (4*LPFC_EXTRA_RING); | |
858c9f6c | 5329 | if (status & HA_RXMASK) { |
a4bc3379 JS |
5330 | lpfc_sli_handle_fast_ring_event(phba, |
5331 | &phba->sli.ring[LPFC_EXTRA_RING], | |
5332 | status); | |
5333 | } | |
5334 | } | |
dea3101e | 5335 | return IRQ_HANDLED; |
5336 | ||
5337 | } /* lpfc_intr_handler */ |