Commit | Line | Data |
---|---|---|
dea3101e | 1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
c44ce173 | 3 | * Fibre Channel Host Bus Adapters. * |
1b32f6aa | 4 | * Copyright (C) 2004-2008 Emulex. All rights reserved. * |
c44ce173 | 5 | * EMULEX and SLI are trademarks of Emulex. * |
dea3101e | 6 | * www.emulex.com * |
c44ce173 | 7 | * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
dea3101e | 8 | * * |
9 | * This program is free software; you can redistribute it and/or * | |
c44ce173 JSEC |
10 | * modify it under the terms of version 2 of the GNU General * |
11 | * Public License as published by the Free Software Foundation. * | |
12 | * This program is distributed in the hope that it will be useful. * | |
13 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * | |
14 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * | |
15 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * | |
16 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * | |
17 | * TO BE LEGALLY INVALID. See the GNU General Public License for * | |
18 | * more details, a copy of which can be found in the file COPYING * | |
19 | * included with this package. * | |
dea3101e | 20 | *******************************************************************/ |
21 | ||
dea3101e | 22 | #include <linux/blkdev.h> |
23 | #include <linux/pci.h> | |
24 | #include <linux/interrupt.h> | |
25 | #include <linux/delay.h> | |
26 | ||
91886523 | 27 | #include <scsi/scsi.h> |
dea3101e | 28 | #include <scsi/scsi_cmnd.h> |
29 | #include <scsi/scsi_device.h> | |
30 | #include <scsi/scsi_host.h> | |
f888ba3c | 31 | #include <scsi/scsi_transport_fc.h> |
dea3101e | 32 | |
33 | #include "lpfc_hw.h" | |
34 | #include "lpfc_sli.h" | |
ea2151b4 | 35 | #include "lpfc_nl.h" |
dea3101e | 36 | #include "lpfc_disc.h" |
37 | #include "lpfc_scsi.h" | |
38 | #include "lpfc.h" | |
39 | #include "lpfc_crtn.h" | |
40 | #include "lpfc_logmsg.h" | |
41 | #include "lpfc_compat.h" | |
858c9f6c | 42 | #include "lpfc_debugfs.h" |
dea3101e | 43 | |
44 | /* | |
45 | * Define macro to log: Mailbox command x%x cannot issue Data | |
46 | * This allows multiple uses of lpfc_msgBlk0311 | |
47 | * w/o perturbing log msg utility. | |
48 | */ | |
92d7f7b0 | 49 | #define LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag) \ |
dea3101e | 50 | lpfc_printf_log(phba, \ |
51 | KERN_INFO, \ | |
52 | LOG_MBOX | LOG_SLI, \ | |
e8b62011 | 53 | "(%d):0311 Mailbox command x%x cannot " \ |
92d7f7b0 | 54 | "issue Data: x%x x%x x%x\n", \ |
92d7f7b0 JS |
55 | pmbox->vport ? pmbox->vport->vpi : 0, \ |
56 | pmbox->mb.mbxCommand, \ | |
2e0fef85 | 57 | phba->pport->port_state, \ |
dea3101e | 58 | psli->sli_flag, \ |
2e0fef85 | 59 | flag) |
dea3101e | 60 | |
61 | ||
62 | /* There are only four IOCB completion types. */ | |
63 | typedef enum _lpfc_iocb_type { | |
64 | LPFC_UNKNOWN_IOCB, | |
65 | LPFC_UNSOL_IOCB, | |
66 | LPFC_SOL_IOCB, | |
67 | LPFC_ABORT_IOCB | |
68 | } lpfc_iocb_type; | |
69 | ||
e59058c4 JS |
70 | /** |
71 | * lpfc_cmd_iocb: Get next command iocb entry in the ring. | |
72 | * @phba: Pointer to HBA context object. | |
73 | * @pring: Pointer to driver SLI ring object. | |
74 | * | |
75 | * This function returns pointer to next command iocb entry | |
76 | * in the command ring. The caller must hold hbalock to prevent | |
77 | * other threads consume the next command iocb. | |
78 | * SLI-2/SLI-3 provide different sized iocbs. | |
79 | **/ | |
ed957684 JS |
80 | static inline IOCB_t * |
81 | lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
82 | { | |
83 | return (IOCB_t *) (((char *) pring->cmdringaddr) + | |
84 | pring->cmdidx * phba->iocb_cmd_size); | |
85 | } | |
86 | ||
e59058c4 JS |
87 | /** |
88 | * lpfc_resp_iocb: Get next response iocb entry in the ring. | |
89 | * @phba: Pointer to HBA context object. | |
90 | * @pring: Pointer to driver SLI ring object. | |
91 | * | |
92 | * This function returns pointer to next response iocb entry | |
93 | * in the response ring. The caller must hold hbalock to make sure | |
94 | * that no other thread consume the next response iocb. | |
95 | * SLI-2/SLI-3 provide different sized iocbs. | |
96 | **/ | |
ed957684 JS |
97 | static inline IOCB_t * |
98 | lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
99 | { | |
100 | return (IOCB_t *) (((char *) pring->rspringaddr) + | |
101 | pring->rspidx * phba->iocb_rsp_size); | |
102 | } | |
103 | ||
e59058c4 JS |
104 | /** |
105 | * __lpfc_sli_get_iocbq: Allocates an iocb object from iocb pool. | |
106 | * @phba: Pointer to HBA context object. | |
107 | * | |
108 | * This function is called with hbalock held. This function | |
109 | * allocates a new driver iocb object from the iocb pool. If the | |
110 | * allocation is successful, it returns pointer to the newly | |
111 | * allocated iocb object else it returns NULL. | |
112 | **/ | |
2e0fef85 JS |
113 | static struct lpfc_iocbq * |
114 | __lpfc_sli_get_iocbq(struct lpfc_hba *phba) | |
0bd4ca25 JSEC |
115 | { |
116 | struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list; | |
117 | struct lpfc_iocbq * iocbq = NULL; | |
118 | ||
119 | list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list); | |
120 | return iocbq; | |
121 | } | |
122 | ||
e59058c4 JS |
123 | /** |
124 | * lpfc_sli_get_iocbq: Allocates an iocb object from iocb pool. | |
125 | * @phba: Pointer to HBA context object. | |
126 | * | |
127 | * This function is called with no lock held. This function | |
128 | * allocates a new driver iocb object from the iocb pool. If the | |
129 | * allocation is successful, it returns pointer to the newly | |
130 | * allocated iocb object else it returns NULL. | |
131 | **/ | |
2e0fef85 JS |
132 | struct lpfc_iocbq * |
133 | lpfc_sli_get_iocbq(struct lpfc_hba *phba) | |
134 | { | |
135 | struct lpfc_iocbq * iocbq = NULL; | |
136 | unsigned long iflags; | |
137 | ||
138 | spin_lock_irqsave(&phba->hbalock, iflags); | |
139 | iocbq = __lpfc_sli_get_iocbq(phba); | |
140 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
141 | return iocbq; | |
142 | } | |
143 | ||
e59058c4 JS |
144 | /** |
145 | * __lpfc_sli_release_iocbq: Release iocb to the iocb pool. | |
146 | * @phba: Pointer to HBA context object. | |
147 | * @iocbq: Pointer to driver iocb object. | |
148 | * | |
149 | * This function is called with hbalock held to release driver | |
150 | * iocb object to the iocb pool. The iotag in the iocb object | |
151 | * does not change for each use of the iocb object. This function | |
152 | * clears all other fields of the iocb object when it is freed. | |
153 | **/ | |
a6ababd2 | 154 | static void |
2e0fef85 | 155 | __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) |
604a3e30 | 156 | { |
2e0fef85 | 157 | size_t start_clean = offsetof(struct lpfc_iocbq, iocb); |
604a3e30 JB |
158 | |
159 | /* | |
160 | * Clean all volatile data fields, preserve iotag and node struct. | |
161 | */ | |
162 | memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean); | |
163 | list_add_tail(&iocbq->list, &phba->lpfc_iocb_list); | |
164 | } | |
165 | ||
e59058c4 JS |
166 | /** |
167 | * lpfc_sli_release_iocbq: Release iocb to the iocb pool. | |
168 | * @phba: Pointer to HBA context object. | |
169 | * @iocbq: Pointer to driver iocb object. | |
170 | * | |
171 | * This function is called with no lock held to release the iocb to | |
172 | * iocb pool. | |
173 | **/ | |
2e0fef85 JS |
174 | void |
175 | lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) | |
176 | { | |
177 | unsigned long iflags; | |
178 | ||
179 | /* | |
180 | * Clean all volatile data fields, preserve iotag and node struct. | |
181 | */ | |
182 | spin_lock_irqsave(&phba->hbalock, iflags); | |
183 | __lpfc_sli_release_iocbq(phba, iocbq); | |
184 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
185 | } | |
186 | ||
e59058c4 JS |
187 | /** |
188 | * lpfc_sli_iocb_cmd_type: Get the iocb type. | |
189 | * @iocb_cmnd : iocb command code. | |
190 | * | |
191 | * This function is called by ring event handler function to get the iocb type. | |
192 | * This function translates the iocb command to an iocb command type used to | |
193 | * decide the final disposition of each completed IOCB. | |
194 | * The function returns | |
195 | * LPFC_UNKNOWN_IOCB if it is an unsupported iocb | |
196 | * LPFC_SOL_IOCB if it is a solicited iocb completion | |
197 | * LPFC_ABORT_IOCB if it is an abort iocb | |
198 | * LPFC_UNSOL_IOCB if it is an unsolicited iocb | |
199 | * | |
200 | * The caller is not required to hold any lock. | |
201 | **/ | |
dea3101e | 202 | static lpfc_iocb_type |
203 | lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd) | |
204 | { | |
205 | lpfc_iocb_type type = LPFC_UNKNOWN_IOCB; | |
206 | ||
207 | if (iocb_cmnd > CMD_MAX_IOCB_CMD) | |
208 | return 0; | |
209 | ||
210 | switch (iocb_cmnd) { | |
211 | case CMD_XMIT_SEQUENCE_CR: | |
212 | case CMD_XMIT_SEQUENCE_CX: | |
213 | case CMD_XMIT_BCAST_CN: | |
214 | case CMD_XMIT_BCAST_CX: | |
215 | case CMD_ELS_REQUEST_CR: | |
216 | case CMD_ELS_REQUEST_CX: | |
217 | case CMD_CREATE_XRI_CR: | |
218 | case CMD_CREATE_XRI_CX: | |
219 | case CMD_GET_RPI_CN: | |
220 | case CMD_XMIT_ELS_RSP_CX: | |
221 | case CMD_GET_RPI_CR: | |
222 | case CMD_FCP_IWRITE_CR: | |
223 | case CMD_FCP_IWRITE_CX: | |
224 | case CMD_FCP_IREAD_CR: | |
225 | case CMD_FCP_IREAD_CX: | |
226 | case CMD_FCP_ICMND_CR: | |
227 | case CMD_FCP_ICMND_CX: | |
f5603511 JS |
228 | case CMD_FCP_TSEND_CX: |
229 | case CMD_FCP_TRSP_CX: | |
230 | case CMD_FCP_TRECEIVE_CX: | |
231 | case CMD_FCP_AUTO_TRSP_CX: | |
dea3101e | 232 | case CMD_ADAPTER_MSG: |
233 | case CMD_ADAPTER_DUMP: | |
234 | case CMD_XMIT_SEQUENCE64_CR: | |
235 | case CMD_XMIT_SEQUENCE64_CX: | |
236 | case CMD_XMIT_BCAST64_CN: | |
237 | case CMD_XMIT_BCAST64_CX: | |
238 | case CMD_ELS_REQUEST64_CR: | |
239 | case CMD_ELS_REQUEST64_CX: | |
240 | case CMD_FCP_IWRITE64_CR: | |
241 | case CMD_FCP_IWRITE64_CX: | |
242 | case CMD_FCP_IREAD64_CR: | |
243 | case CMD_FCP_IREAD64_CX: | |
244 | case CMD_FCP_ICMND64_CR: | |
245 | case CMD_FCP_ICMND64_CX: | |
f5603511 JS |
246 | case CMD_FCP_TSEND64_CX: |
247 | case CMD_FCP_TRSP64_CX: | |
248 | case CMD_FCP_TRECEIVE64_CX: | |
dea3101e | 249 | case CMD_GEN_REQUEST64_CR: |
250 | case CMD_GEN_REQUEST64_CX: | |
251 | case CMD_XMIT_ELS_RSP64_CX: | |
252 | type = LPFC_SOL_IOCB; | |
253 | break; | |
254 | case CMD_ABORT_XRI_CN: | |
255 | case CMD_ABORT_XRI_CX: | |
256 | case CMD_CLOSE_XRI_CN: | |
257 | case CMD_CLOSE_XRI_CX: | |
258 | case CMD_XRI_ABORTED_CX: | |
259 | case CMD_ABORT_MXRI64_CN: | |
260 | type = LPFC_ABORT_IOCB; | |
261 | break; | |
262 | case CMD_RCV_SEQUENCE_CX: | |
263 | case CMD_RCV_ELS_REQ_CX: | |
264 | case CMD_RCV_SEQUENCE64_CX: | |
265 | case CMD_RCV_ELS_REQ64_CX: | |
57127f15 | 266 | case CMD_ASYNC_STATUS: |
ed957684 JS |
267 | case CMD_IOCB_RCV_SEQ64_CX: |
268 | case CMD_IOCB_RCV_ELS64_CX: | |
269 | case CMD_IOCB_RCV_CONT64_CX: | |
3163f725 | 270 | case CMD_IOCB_RET_XRI64_CX: |
dea3101e | 271 | type = LPFC_UNSOL_IOCB; |
272 | break; | |
3163f725 JS |
273 | case CMD_IOCB_XMIT_MSEQ64_CR: |
274 | case CMD_IOCB_XMIT_MSEQ64_CX: | |
275 | case CMD_IOCB_RCV_SEQ_LIST64_CX: | |
276 | case CMD_IOCB_RCV_ELS_LIST64_CX: | |
277 | case CMD_IOCB_CLOSE_EXTENDED_CN: | |
278 | case CMD_IOCB_ABORT_EXTENDED_CN: | |
279 | case CMD_IOCB_RET_HBQE64_CN: | |
280 | case CMD_IOCB_FCP_IBIDIR64_CR: | |
281 | case CMD_IOCB_FCP_IBIDIR64_CX: | |
282 | case CMD_IOCB_FCP_ITASKMGT64_CX: | |
283 | case CMD_IOCB_LOGENTRY_CN: | |
284 | case CMD_IOCB_LOGENTRY_ASYNC_CN: | |
285 | printk("%s - Unhandled SLI-3 Command x%x\n", | |
cadbd4a5 | 286 | __func__, iocb_cmnd); |
3163f725 JS |
287 | type = LPFC_UNKNOWN_IOCB; |
288 | break; | |
dea3101e | 289 | default: |
290 | type = LPFC_UNKNOWN_IOCB; | |
291 | break; | |
292 | } | |
293 | ||
294 | return type; | |
295 | } | |
296 | ||
e59058c4 JS |
297 | /** |
298 | * lpfc_sli_ring_map: Issue config_ring mbox for all rings. | |
299 | * @phba: Pointer to HBA context object. | |
300 | * | |
301 | * This function is called from SLI initialization code | |
302 | * to configure every ring of the HBA's SLI interface. The | |
303 | * caller is not required to hold any lock. This function issues | |
304 | * a config_ring mailbox command for each ring. | |
305 | * This function returns zero if successful else returns a negative | |
306 | * error code. | |
307 | **/ | |
dea3101e | 308 | static int |
ed957684 | 309 | lpfc_sli_ring_map(struct lpfc_hba *phba) |
dea3101e | 310 | { |
311 | struct lpfc_sli *psli = &phba->sli; | |
ed957684 JS |
312 | LPFC_MBOXQ_t *pmb; |
313 | MAILBOX_t *pmbox; | |
314 | int i, rc, ret = 0; | |
dea3101e | 315 | |
ed957684 JS |
316 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
317 | if (!pmb) | |
318 | return -ENOMEM; | |
319 | pmbox = &pmb->mb; | |
320 | phba->link_state = LPFC_INIT_MBX_CMDS; | |
dea3101e | 321 | for (i = 0; i < psli->num_rings; i++) { |
dea3101e | 322 | lpfc_config_ring(phba, i, pmb); |
323 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
324 | if (rc != MBX_SUCCESS) { | |
92d7f7b0 | 325 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 326 | "0446 Adapter failed to init (%d), " |
dea3101e | 327 | "mbxCmd x%x CFG_RING, mbxStatus x%x, " |
328 | "ring %d\n", | |
e8b62011 JS |
329 | rc, pmbox->mbxCommand, |
330 | pmbox->mbxStatus, i); | |
2e0fef85 | 331 | phba->link_state = LPFC_HBA_ERROR; |
ed957684 JS |
332 | ret = -ENXIO; |
333 | break; | |
dea3101e | 334 | } |
335 | } | |
ed957684 JS |
336 | mempool_free(pmb, phba->mbox_mem_pool); |
337 | return ret; | |
dea3101e | 338 | } |
339 | ||
e59058c4 JS |
340 | /** |
341 | * lpfc_sli_ringtxcmpl_put: Adds new iocb to the txcmplq. | |
342 | * @phba: Pointer to HBA context object. | |
343 | * @pring: Pointer to driver SLI ring object. | |
344 | * @piocb: Pointer to the driver iocb object. | |
345 | * | |
346 | * This function is called with hbalock held. The function adds the | |
347 | * new iocb to txcmplq of the given ring. This function always returns | |
348 | * 0. If this function is called for ELS ring, this function checks if | |
349 | * there is a vport associated with the ELS command. This function also | |
350 | * starts els_tmofunc timer if this is an ELS command. | |
351 | **/ | |
dea3101e | 352 | static int |
2e0fef85 JS |
353 | lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
354 | struct lpfc_iocbq *piocb) | |
dea3101e | 355 | { |
dea3101e | 356 | list_add_tail(&piocb->list, &pring->txcmplq); |
357 | pring->txcmplq_cnt++; | |
92d7f7b0 JS |
358 | if ((unlikely(pring->ringno == LPFC_ELS_RING)) && |
359 | (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) && | |
360 | (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) { | |
361 | if (!piocb->vport) | |
362 | BUG(); | |
363 | else | |
364 | mod_timer(&piocb->vport->els_tmofunc, | |
365 | jiffies + HZ * (phba->fc_ratov << 1)); | |
366 | } | |
367 | ||
dea3101e | 368 | |
2e0fef85 | 369 | return 0; |
dea3101e | 370 | } |
371 | ||
e59058c4 JS |
372 | /** |
373 | * lpfc_sli_ringtx_get: Get first element of the txq. | |
374 | * @phba: Pointer to HBA context object. | |
375 | * @pring: Pointer to driver SLI ring object. | |
376 | * | |
377 | * This function is called with hbalock held to get next | |
378 | * iocb in txq of the given ring. If there is any iocb in | |
379 | * the txq, the function returns first iocb in the list after | |
380 | * removing the iocb from the list, else it returns NULL. | |
381 | **/ | |
dea3101e | 382 | static struct lpfc_iocbq * |
2e0fef85 | 383 | lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 384 | { |
dea3101e | 385 | struct lpfc_iocbq *cmd_iocb; |
386 | ||
858c9f6c JS |
387 | list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list); |
388 | if (cmd_iocb != NULL) | |
dea3101e | 389 | pring->txq_cnt--; |
2e0fef85 | 390 | return cmd_iocb; |
dea3101e | 391 | } |
392 | ||
e59058c4 JS |
393 | /** |
394 | * lpfc_sli_next_iocb_slot: Get next iocb slot in the ring. | |
395 | * @phba: Pointer to HBA context object. | |
396 | * @pring: Pointer to driver SLI ring object. | |
397 | * | |
398 | * This function is called with hbalock held and the caller must post the | |
399 | * iocb without releasing the lock. If the caller releases the lock, | |
400 | * iocb slot returned by the function is not guaranteed to be available. | |
401 | * The function returns pointer to the next available iocb slot if there | |
402 | * is available slot in the ring, else it returns NULL. | |
403 | * If the get index of the ring is ahead of the put index, the function | |
404 | * will post an error attention event to the worker thread to take the | |
405 | * HBA to offline state. | |
406 | **/ | |
dea3101e | 407 | static IOCB_t * |
408 | lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
409 | { | |
34b02dcd | 410 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
dea3101e | 411 | uint32_t max_cmd_idx = pring->numCiocb; |
dea3101e | 412 | if ((pring->next_cmdidx == pring->cmdidx) && |
413 | (++pring->next_cmdidx >= max_cmd_idx)) | |
414 | pring->next_cmdidx = 0; | |
415 | ||
416 | if (unlikely(pring->local_getidx == pring->next_cmdidx)) { | |
417 | ||
418 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
419 | ||
420 | if (unlikely(pring->local_getidx >= max_cmd_idx)) { | |
421 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 422 | "0315 Ring %d issue: portCmdGet %d " |
025dfdaf | 423 | "is bigger than cmd ring %d\n", |
e8b62011 | 424 | pring->ringno, |
dea3101e | 425 | pring->local_getidx, max_cmd_idx); |
426 | ||
2e0fef85 | 427 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 428 | /* |
429 | * All error attention handlers are posted to | |
430 | * worker thread | |
431 | */ | |
432 | phba->work_ha |= HA_ERATT; | |
433 | phba->work_hs = HS_FFER3; | |
92d7f7b0 | 434 | |
5e9d9b82 | 435 | lpfc_worker_wake_up(phba); |
dea3101e | 436 | |
437 | return NULL; | |
438 | } | |
439 | ||
440 | if (pring->local_getidx == pring->next_cmdidx) | |
441 | return NULL; | |
442 | } | |
443 | ||
ed957684 | 444 | return lpfc_cmd_iocb(phba, pring); |
dea3101e | 445 | } |
446 | ||
e59058c4 JS |
447 | /** |
448 | * lpfc_sli_next_iotag: Get an iotag for the iocb. | |
449 | * @phba: Pointer to HBA context object. | |
450 | * @iocbq: Pointer to driver iocb object. | |
451 | * | |
452 | * This function gets an iotag for the iocb. If there is no unused iotag and | |
453 | * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup | |
454 | * array and assigns a new iotag. | |
455 | * The function returns the allocated iotag if successful, else returns zero. | |
456 | * Zero is not a valid iotag. | |
457 | * The caller is not required to hold any lock. | |
458 | **/ | |
604a3e30 | 459 | uint16_t |
2e0fef85 | 460 | lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) |
dea3101e | 461 | { |
2e0fef85 JS |
462 | struct lpfc_iocbq **new_arr; |
463 | struct lpfc_iocbq **old_arr; | |
604a3e30 JB |
464 | size_t new_len; |
465 | struct lpfc_sli *psli = &phba->sli; | |
466 | uint16_t iotag; | |
dea3101e | 467 | |
2e0fef85 | 468 | spin_lock_irq(&phba->hbalock); |
604a3e30 JB |
469 | iotag = psli->last_iotag; |
470 | if(++iotag < psli->iocbq_lookup_len) { | |
471 | psli->last_iotag = iotag; | |
472 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 473 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
474 | iocbq->iotag = iotag; |
475 | return iotag; | |
2e0fef85 | 476 | } else if (psli->iocbq_lookup_len < (0xffff |
604a3e30 JB |
477 | - LPFC_IOCBQ_LOOKUP_INCREMENT)) { |
478 | new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT; | |
2e0fef85 JS |
479 | spin_unlock_irq(&phba->hbalock); |
480 | new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *), | |
604a3e30 JB |
481 | GFP_KERNEL); |
482 | if (new_arr) { | |
2e0fef85 | 483 | spin_lock_irq(&phba->hbalock); |
604a3e30 JB |
484 | old_arr = psli->iocbq_lookup; |
485 | if (new_len <= psli->iocbq_lookup_len) { | |
486 | /* highly unprobable case */ | |
487 | kfree(new_arr); | |
488 | iotag = psli->last_iotag; | |
489 | if(++iotag < psli->iocbq_lookup_len) { | |
490 | psli->last_iotag = iotag; | |
491 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 492 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
493 | iocbq->iotag = iotag; |
494 | return iotag; | |
495 | } | |
2e0fef85 | 496 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
497 | return 0; |
498 | } | |
499 | if (psli->iocbq_lookup) | |
500 | memcpy(new_arr, old_arr, | |
501 | ((psli->last_iotag + 1) * | |
311464ec | 502 | sizeof (struct lpfc_iocbq *))); |
604a3e30 JB |
503 | psli->iocbq_lookup = new_arr; |
504 | psli->iocbq_lookup_len = new_len; | |
505 | psli->last_iotag = iotag; | |
506 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 507 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
508 | iocbq->iotag = iotag; |
509 | kfree(old_arr); | |
510 | return iotag; | |
511 | } | |
8f6d98d2 | 512 | } else |
2e0fef85 | 513 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 514 | |
604a3e30 | 515 | lpfc_printf_log(phba, KERN_ERR,LOG_SLI, |
e8b62011 JS |
516 | "0318 Failed to allocate IOTAG.last IOTAG is %d\n", |
517 | psli->last_iotag); | |
dea3101e | 518 | |
604a3e30 | 519 | return 0; |
dea3101e | 520 | } |
521 | ||
e59058c4 JS |
522 | /** |
523 | * lpfc_sli_submit_iocb: Submit an iocb to the firmware. | |
524 | * @phba: Pointer to HBA context object. | |
525 | * @pring: Pointer to driver SLI ring object. | |
526 | * @iocb: Pointer to iocb slot in the ring. | |
527 | * @nextiocb: Pointer to driver iocb object which need to be | |
528 | * posted to firmware. | |
529 | * | |
530 | * This function is called with hbalock held to post a new iocb to | |
531 | * the firmware. This function copies the new iocb to ring iocb slot and | |
532 | * updates the ring pointers. It adds the new iocb to txcmplq if there is | |
533 | * a completion call back for this iocb else the function will free the | |
534 | * iocb object. | |
535 | **/ | |
dea3101e | 536 | static void |
537 | lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
538 | IOCB_t *iocb, struct lpfc_iocbq *nextiocb) | |
539 | { | |
540 | /* | |
604a3e30 | 541 | * Set up an iotag |
dea3101e | 542 | */ |
604a3e30 | 543 | nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0; |
dea3101e | 544 | |
e2a0a9d6 | 545 | |
a58cbd52 JS |
546 | if (pring->ringno == LPFC_ELS_RING) { |
547 | lpfc_debugfs_slow_ring_trc(phba, | |
548 | "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x", | |
549 | *(((uint32_t *) &nextiocb->iocb) + 4), | |
550 | *(((uint32_t *) &nextiocb->iocb) + 6), | |
551 | *(((uint32_t *) &nextiocb->iocb) + 7)); | |
552 | } | |
553 | ||
dea3101e | 554 | /* |
555 | * Issue iocb command to adapter | |
556 | */ | |
92d7f7b0 | 557 | lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size); |
dea3101e | 558 | wmb(); |
559 | pring->stats.iocb_cmd++; | |
560 | ||
561 | /* | |
562 | * If there is no completion routine to call, we can release the | |
563 | * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF, | |
564 | * that have no rsp ring completion, iocb_cmpl MUST be NULL. | |
565 | */ | |
566 | if (nextiocb->iocb_cmpl) | |
567 | lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb); | |
604a3e30 | 568 | else |
2e0fef85 | 569 | __lpfc_sli_release_iocbq(phba, nextiocb); |
dea3101e | 570 | |
571 | /* | |
572 | * Let the HBA know what IOCB slot will be the next one the | |
573 | * driver will put a command into. | |
574 | */ | |
575 | pring->cmdidx = pring->next_cmdidx; | |
ed957684 | 576 | writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx); |
dea3101e | 577 | } |
578 | ||
e59058c4 JS |
579 | /** |
580 | * lpfc_sli_update_full_ring: Update the chip attention register. | |
581 | * @phba: Pointer to HBA context object. | |
582 | * @pring: Pointer to driver SLI ring object. | |
583 | * | |
584 | * The caller is not required to hold any lock for calling this function. | |
585 | * This function updates the chip attention bits for the ring to inform firmware | |
586 | * that there are pending work to be done for this ring and requests an | |
587 | * interrupt when there is space available in the ring. This function is | |
588 | * called when the driver is unable to post more iocbs to the ring due | |
589 | * to unavailability of space in the ring. | |
590 | **/ | |
dea3101e | 591 | static void |
2e0fef85 | 592 | lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 593 | { |
594 | int ringno = pring->ringno; | |
595 | ||
596 | pring->flag |= LPFC_CALL_RING_AVAILABLE; | |
597 | ||
598 | wmb(); | |
599 | ||
600 | /* | |
601 | * Set ring 'ringno' to SET R0CE_REQ in Chip Att register. | |
602 | * The HBA will tell us when an IOCB entry is available. | |
603 | */ | |
604 | writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr); | |
605 | readl(phba->CAregaddr); /* flush */ | |
606 | ||
607 | pring->stats.iocb_cmd_full++; | |
608 | } | |
609 | ||
e59058c4 JS |
610 | /** |
611 | * lpfc_sli_update_ring: Update chip attention register. | |
612 | * @phba: Pointer to HBA context object. | |
613 | * @pring: Pointer to driver SLI ring object. | |
614 | * | |
615 | * This function updates the chip attention register bit for the | |
616 | * given ring to inform HBA that there is more work to be done | |
617 | * in this ring. The caller is not required to hold any lock. | |
618 | **/ | |
dea3101e | 619 | static void |
2e0fef85 | 620 | lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 621 | { |
622 | int ringno = pring->ringno; | |
623 | ||
624 | /* | |
625 | * Tell the HBA that there is work to do in this ring. | |
626 | */ | |
34b02dcd JS |
627 | if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) { |
628 | wmb(); | |
629 | writel(CA_R0ATT << (ringno * 4), phba->CAregaddr); | |
630 | readl(phba->CAregaddr); /* flush */ | |
631 | } | |
dea3101e | 632 | } |
633 | ||
e59058c4 JS |
634 | /** |
635 | * lpfc_sli_resume_iocb: Process iocbs in the txq. | |
636 | * @phba: Pointer to HBA context object. | |
637 | * @pring: Pointer to driver SLI ring object. | |
638 | * | |
639 | * This function is called with hbalock held to post pending iocbs | |
640 | * in the txq to the firmware. This function is called when driver | |
641 | * detects space available in the ring. | |
642 | **/ | |
dea3101e | 643 | static void |
2e0fef85 | 644 | lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 645 | { |
646 | IOCB_t *iocb; | |
647 | struct lpfc_iocbq *nextiocb; | |
648 | ||
649 | /* | |
650 | * Check to see if: | |
651 | * (a) there is anything on the txq to send | |
652 | * (b) link is up | |
653 | * (c) link attention events can be processed (fcp ring only) | |
654 | * (d) IOCB processing is not blocked by the outstanding mbox command. | |
655 | */ | |
656 | if (pring->txq_cnt && | |
2e0fef85 | 657 | lpfc_is_link_up(phba) && |
dea3101e | 658 | (pring->ringno != phba->sli.fcp_ring || |
0b727fea | 659 | phba->sli.sli_flag & LPFC_PROCESS_LA)) { |
dea3101e | 660 | |
661 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && | |
662 | (nextiocb = lpfc_sli_ringtx_get(phba, pring))) | |
663 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
664 | ||
665 | if (iocb) | |
666 | lpfc_sli_update_ring(phba, pring); | |
667 | else | |
668 | lpfc_sli_update_full_ring(phba, pring); | |
669 | } | |
670 | ||
671 | return; | |
672 | } | |
673 | ||
e59058c4 JS |
674 | /** |
675 | * lpfc_sli_next_hbq_slot: Get next hbq entry for the HBQ. | |
676 | * @phba: Pointer to HBA context object. | |
677 | * @hbqno: HBQ number. | |
678 | * | |
679 | * This function is called with hbalock held to get the next | |
680 | * available slot for the given HBQ. If there is free slot | |
681 | * available for the HBQ it will return pointer to the next available | |
682 | * HBQ entry else it will return NULL. | |
683 | **/ | |
a6ababd2 | 684 | static struct lpfc_hbq_entry * |
ed957684 JS |
685 | lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno) |
686 | { | |
687 | struct hbq_s *hbqp = &phba->hbqs[hbqno]; | |
688 | ||
689 | if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx && | |
690 | ++hbqp->next_hbqPutIdx >= hbqp->entry_count) | |
691 | hbqp->next_hbqPutIdx = 0; | |
692 | ||
693 | if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) { | |
92d7f7b0 | 694 | uint32_t raw_index = phba->hbq_get[hbqno]; |
ed957684 JS |
695 | uint32_t getidx = le32_to_cpu(raw_index); |
696 | ||
697 | hbqp->local_hbqGetIdx = getidx; | |
698 | ||
699 | if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) { | |
700 | lpfc_printf_log(phba, KERN_ERR, | |
92d7f7b0 | 701 | LOG_SLI | LOG_VPORT, |
e8b62011 | 702 | "1802 HBQ %d: local_hbqGetIdx " |
ed957684 | 703 | "%u is > than hbqp->entry_count %u\n", |
e8b62011 | 704 | hbqno, hbqp->local_hbqGetIdx, |
ed957684 JS |
705 | hbqp->entry_count); |
706 | ||
707 | phba->link_state = LPFC_HBA_ERROR; | |
708 | return NULL; | |
709 | } | |
710 | ||
711 | if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx) | |
712 | return NULL; | |
713 | } | |
714 | ||
51ef4c26 JS |
715 | return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt + |
716 | hbqp->hbqPutIdx; | |
ed957684 JS |
717 | } |
718 | ||
e59058c4 JS |
719 | /** |
720 | * lpfc_sli_hbqbuf_free_all: Free all the hbq buffers. | |
721 | * @phba: Pointer to HBA context object. | |
722 | * | |
723 | * This function is called with no lock held to free all the | |
724 | * hbq buffers while uninitializing the SLI interface. It also | |
725 | * frees the HBQ buffers returned by the firmware but not yet | |
726 | * processed by the upper layers. | |
727 | **/ | |
ed957684 JS |
728 | void |
729 | lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba) | |
730 | { | |
92d7f7b0 JS |
731 | struct lpfc_dmabuf *dmabuf, *next_dmabuf; |
732 | struct hbq_dmabuf *hbq_buf; | |
3163f725 | 733 | unsigned long flags; |
51ef4c26 | 734 | int i, hbq_count; |
3163f725 | 735 | uint32_t hbqno; |
ed957684 | 736 | |
51ef4c26 | 737 | hbq_count = lpfc_sli_hbq_count(); |
ed957684 | 738 | /* Return all memory used by all HBQs */ |
3163f725 | 739 | spin_lock_irqsave(&phba->hbalock, flags); |
51ef4c26 JS |
740 | for (i = 0; i < hbq_count; ++i) { |
741 | list_for_each_entry_safe(dmabuf, next_dmabuf, | |
742 | &phba->hbqs[i].hbq_buffer_list, list) { | |
743 | hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf); | |
744 | list_del(&hbq_buf->dbuf.list); | |
745 | (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf); | |
746 | } | |
a8adb832 | 747 | phba->hbqs[i].buffer_count = 0; |
ed957684 | 748 | } |
3163f725 JS |
749 | /* Return all HBQ buffer that are in-fly */ |
750 | list_for_each_entry_safe(dmabuf, next_dmabuf, | |
751 | &phba->hbqbuf_in_list, list) { | |
752 | hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf); | |
753 | list_del(&hbq_buf->dbuf.list); | |
754 | if (hbq_buf->tag == -1) { | |
755 | (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer) | |
756 | (phba, hbq_buf); | |
757 | } else { | |
758 | hbqno = hbq_buf->tag >> 16; | |
759 | if (hbqno >= LPFC_MAX_HBQS) | |
760 | (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer) | |
761 | (phba, hbq_buf); | |
762 | else | |
763 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, | |
764 | hbq_buf); | |
765 | } | |
766 | } | |
767 | ||
768 | /* Mark the HBQs not in use */ | |
769 | phba->hbq_in_use = 0; | |
770 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
ed957684 JS |
771 | } |
772 | ||
e59058c4 JS |
773 | /** |
774 | * lpfc_sli_hbq_to_firmware: Post the hbq buffer to firmware. | |
775 | * @phba: Pointer to HBA context object. | |
776 | * @hbqno: HBQ number. | |
777 | * @hbq_buf: Pointer to HBQ buffer. | |
778 | * | |
779 | * This function is called with the hbalock held to post a | |
780 | * hbq buffer to the firmware. If the function finds an empty | |
781 | * slot in the HBQ, it will post the buffer. The function will return | |
782 | * pointer to the hbq entry if it successfully post the buffer | |
783 | * else it will return NULL. | |
784 | **/ | |
51ef4c26 | 785 | static struct lpfc_hbq_entry * |
ed957684 | 786 | lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno, |
92d7f7b0 | 787 | struct hbq_dmabuf *hbq_buf) |
ed957684 JS |
788 | { |
789 | struct lpfc_hbq_entry *hbqe; | |
92d7f7b0 | 790 | dma_addr_t physaddr = hbq_buf->dbuf.phys; |
ed957684 JS |
791 | |
792 | /* Get next HBQ entry slot to use */ | |
793 | hbqe = lpfc_sli_next_hbq_slot(phba, hbqno); | |
794 | if (hbqe) { | |
795 | struct hbq_s *hbqp = &phba->hbqs[hbqno]; | |
796 | ||
92d7f7b0 JS |
797 | hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr)); |
798 | hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr)); | |
51ef4c26 | 799 | hbqe->bde.tus.f.bdeSize = hbq_buf->size; |
ed957684 | 800 | hbqe->bde.tus.f.bdeFlags = 0; |
92d7f7b0 JS |
801 | hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w); |
802 | hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag); | |
803 | /* Sync SLIM */ | |
ed957684 JS |
804 | hbqp->hbqPutIdx = hbqp->next_hbqPutIdx; |
805 | writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno); | |
92d7f7b0 | 806 | /* flush */ |
ed957684 | 807 | readl(phba->hbq_put + hbqno); |
51ef4c26 | 808 | list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list); |
ed957684 | 809 | } |
51ef4c26 | 810 | return hbqe; |
ed957684 JS |
811 | } |
812 | ||
e59058c4 | 813 | /* HBQ for ELS and CT traffic. */ |
92d7f7b0 JS |
814 | static struct lpfc_hbq_init lpfc_els_hbq = { |
815 | .rn = 1, | |
816 | .entry_count = 200, | |
817 | .mask_count = 0, | |
818 | .profile = 0, | |
51ef4c26 | 819 | .ring_mask = (1 << LPFC_ELS_RING), |
92d7f7b0 JS |
820 | .buffer_count = 0, |
821 | .init_count = 20, | |
822 | .add_count = 5, | |
823 | }; | |
ed957684 | 824 | |
e59058c4 | 825 | /* HBQ for the extra ring if needed */ |
51ef4c26 JS |
826 | static struct lpfc_hbq_init lpfc_extra_hbq = { |
827 | .rn = 1, | |
828 | .entry_count = 200, | |
829 | .mask_count = 0, | |
830 | .profile = 0, | |
831 | .ring_mask = (1 << LPFC_EXTRA_RING), | |
832 | .buffer_count = 0, | |
833 | .init_count = 0, | |
834 | .add_count = 5, | |
835 | }; | |
836 | ||
e59058c4 | 837 | /* Array of HBQs */ |
78b2d852 | 838 | struct lpfc_hbq_init *lpfc_hbq_defs[] = { |
92d7f7b0 | 839 | &lpfc_els_hbq, |
51ef4c26 | 840 | &lpfc_extra_hbq, |
92d7f7b0 | 841 | }; |
ed957684 | 842 | |
e59058c4 JS |
843 | /** |
844 | * lpfc_sli_hbqbuf_fill_hbqs: Post more hbq buffers to HBQ. | |
845 | * @phba: Pointer to HBA context object. | |
846 | * @hbqno: HBQ number. | |
847 | * @count: Number of HBQ buffers to be posted. | |
848 | * | |
d7c255b2 JS |
849 | * This function is called with no lock held to post more hbq buffers to the |
850 | * given HBQ. The function returns the number of HBQ buffers successfully | |
851 | * posted. | |
e59058c4 | 852 | **/ |
311464ec | 853 | static int |
92d7f7b0 | 854 | lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count) |
ed957684 | 855 | { |
d7c255b2 | 856 | uint32_t i, posted = 0; |
3163f725 | 857 | unsigned long flags; |
92d7f7b0 | 858 | struct hbq_dmabuf *hbq_buffer; |
d7c255b2 | 859 | LIST_HEAD(hbq_buf_list); |
eafe1df9 | 860 | if (!phba->hbqs[hbqno].hbq_alloc_buffer) |
51ef4c26 | 861 | return 0; |
51ef4c26 | 862 | |
d7c255b2 JS |
863 | if ((phba->hbqs[hbqno].buffer_count + count) > |
864 | lpfc_hbq_defs[hbqno]->entry_count) | |
865 | count = lpfc_hbq_defs[hbqno]->entry_count - | |
866 | phba->hbqs[hbqno].buffer_count; | |
867 | if (!count) | |
868 | return 0; | |
869 | /* Allocate HBQ entries */ | |
870 | for (i = 0; i < count; i++) { | |
871 | hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba); | |
872 | if (!hbq_buffer) | |
873 | break; | |
874 | list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list); | |
875 | } | |
3163f725 JS |
876 | /* Check whether HBQ is still in use */ |
877 | spin_lock_irqsave(&phba->hbalock, flags); | |
eafe1df9 | 878 | if (!phba->hbq_in_use) |
d7c255b2 JS |
879 | goto err; |
880 | while (!list_empty(&hbq_buf_list)) { | |
881 | list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf, | |
882 | dbuf.list); | |
883 | hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count | | |
884 | (hbqno << 16)); | |
885 | if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) { | |
a8adb832 | 886 | phba->hbqs[hbqno].buffer_count++; |
d7c255b2 JS |
887 | posted++; |
888 | } else | |
51ef4c26 | 889 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); |
ed957684 | 890 | } |
3163f725 | 891 | spin_unlock_irqrestore(&phba->hbalock, flags); |
d7c255b2 JS |
892 | return posted; |
893 | err: | |
eafe1df9 | 894 | spin_unlock_irqrestore(&phba->hbalock, flags); |
d7c255b2 JS |
895 | while (!list_empty(&hbq_buf_list)) { |
896 | list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf, | |
897 | dbuf.list); | |
898 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); | |
899 | } | |
900 | return 0; | |
ed957684 JS |
901 | } |
902 | ||
e59058c4 JS |
903 | /** |
904 | * lpfc_sli_hbqbuf_add_hbqs: Post more HBQ buffers to firmware. | |
905 | * @phba: Pointer to HBA context object. | |
906 | * @qno: HBQ number. | |
907 | * | |
908 | * This function posts more buffers to the HBQ. This function | |
d7c255b2 JS |
909 | * is called with no lock held. The function returns the number of HBQ entries |
910 | * successfully allocated. | |
e59058c4 | 911 | **/ |
92d7f7b0 JS |
912 | int |
913 | lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno) | |
ed957684 | 914 | { |
92d7f7b0 JS |
915 | return(lpfc_sli_hbqbuf_fill_hbqs(phba, qno, |
916 | lpfc_hbq_defs[qno]->add_count)); | |
917 | } | |
ed957684 | 918 | |
e59058c4 JS |
919 | /** |
920 | * lpfc_sli_hbqbuf_init_hbqs: Post initial buffers to the HBQ. | |
921 | * @phba: Pointer to HBA context object. | |
922 | * @qno: HBQ queue number. | |
923 | * | |
924 | * This function is called from SLI initialization code path with | |
925 | * no lock held to post initial HBQ buffers to firmware. The | |
d7c255b2 | 926 | * function returns the number of HBQ entries successfully allocated. |
e59058c4 | 927 | **/ |
a6ababd2 | 928 | static int |
92d7f7b0 JS |
929 | lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno) |
930 | { | |
931 | return(lpfc_sli_hbqbuf_fill_hbqs(phba, qno, | |
932 | lpfc_hbq_defs[qno]->init_count)); | |
ed957684 JS |
933 | } |
934 | ||
e59058c4 JS |
935 | /** |
936 | * lpfc_sli_hbqbuf_find: Find the hbq buffer associated with a tag. | |
937 | * @phba: Pointer to HBA context object. | |
938 | * @tag: Tag of the hbq buffer. | |
939 | * | |
940 | * This function is called with hbalock held. This function searches | |
941 | * for the hbq buffer associated with the given tag in the hbq buffer | |
942 | * list. If it finds the hbq buffer, it returns the hbq_buffer other wise | |
943 | * it returns NULL. | |
944 | **/ | |
a6ababd2 | 945 | static struct hbq_dmabuf * |
92d7f7b0 | 946 | lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag) |
ed957684 | 947 | { |
92d7f7b0 JS |
948 | struct lpfc_dmabuf *d_buf; |
949 | struct hbq_dmabuf *hbq_buf; | |
51ef4c26 JS |
950 | uint32_t hbqno; |
951 | ||
952 | hbqno = tag >> 16; | |
a0a74e45 | 953 | if (hbqno >= LPFC_MAX_HBQS) |
51ef4c26 | 954 | return NULL; |
ed957684 | 955 | |
51ef4c26 | 956 | list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) { |
92d7f7b0 | 957 | hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); |
51ef4c26 | 958 | if (hbq_buf->tag == tag) { |
92d7f7b0 | 959 | return hbq_buf; |
ed957684 JS |
960 | } |
961 | } | |
92d7f7b0 | 962 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT, |
e8b62011 | 963 | "1803 Bad hbq tag. Data: x%x x%x\n", |
a8adb832 | 964 | tag, phba->hbqs[tag >> 16].buffer_count); |
92d7f7b0 | 965 | return NULL; |
ed957684 JS |
966 | } |
967 | ||
e59058c4 JS |
968 | /** |
969 | * lpfc_sli_free_hbq: Give back the hbq buffer to firmware. | |
970 | * @phba: Pointer to HBA context object. | |
971 | * @hbq_buffer: Pointer to HBQ buffer. | |
972 | * | |
973 | * This function is called with hbalock. This function gives back | |
974 | * the hbq buffer to firmware. If the HBQ does not have space to | |
975 | * post the buffer, it will free the buffer. | |
976 | **/ | |
ed957684 | 977 | void |
51ef4c26 | 978 | lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer) |
ed957684 JS |
979 | { |
980 | uint32_t hbqno; | |
981 | ||
51ef4c26 JS |
982 | if (hbq_buffer) { |
983 | hbqno = hbq_buffer->tag >> 16; | |
984 | if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) { | |
985 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); | |
986 | } | |
ed957684 JS |
987 | } |
988 | } | |
989 | ||
e59058c4 JS |
990 | /** |
991 | * lpfc_sli_chk_mbx_command: Check if the mailbox is a legitimate mailbox. | |
992 | * @mbxCommand: mailbox command code. | |
993 | * | |
994 | * This function is called by the mailbox event handler function to verify | |
995 | * that the completed mailbox command is a legitimate mailbox command. If the | |
996 | * completed mailbox is not known to the function, it will return MBX_SHUTDOWN | |
997 | * and the mailbox event handler will take the HBA offline. | |
998 | **/ | |
dea3101e | 999 | static int |
1000 | lpfc_sli_chk_mbx_command(uint8_t mbxCommand) | |
1001 | { | |
1002 | uint8_t ret; | |
1003 | ||
1004 | switch (mbxCommand) { | |
1005 | case MBX_LOAD_SM: | |
1006 | case MBX_READ_NV: | |
1007 | case MBX_WRITE_NV: | |
a8adb832 | 1008 | case MBX_WRITE_VPARMS: |
dea3101e | 1009 | case MBX_RUN_BIU_DIAG: |
1010 | case MBX_INIT_LINK: | |
1011 | case MBX_DOWN_LINK: | |
1012 | case MBX_CONFIG_LINK: | |
1013 | case MBX_CONFIG_RING: | |
1014 | case MBX_RESET_RING: | |
1015 | case MBX_READ_CONFIG: | |
1016 | case MBX_READ_RCONFIG: | |
1017 | case MBX_READ_SPARM: | |
1018 | case MBX_READ_STATUS: | |
1019 | case MBX_READ_RPI: | |
1020 | case MBX_READ_XRI: | |
1021 | case MBX_READ_REV: | |
1022 | case MBX_READ_LNK_STAT: | |
1023 | case MBX_REG_LOGIN: | |
1024 | case MBX_UNREG_LOGIN: | |
1025 | case MBX_READ_LA: | |
1026 | case MBX_CLEAR_LA: | |
1027 | case MBX_DUMP_MEMORY: | |
1028 | case MBX_DUMP_CONTEXT: | |
1029 | case MBX_RUN_DIAGS: | |
1030 | case MBX_RESTART: | |
1031 | case MBX_UPDATE_CFG: | |
1032 | case MBX_DOWN_LOAD: | |
1033 | case MBX_DEL_LD_ENTRY: | |
1034 | case MBX_RUN_PROGRAM: | |
1035 | case MBX_SET_MASK: | |
09372820 | 1036 | case MBX_SET_VARIABLE: |
dea3101e | 1037 | case MBX_UNREG_D_ID: |
41415862 | 1038 | case MBX_KILL_BOARD: |
dea3101e | 1039 | case MBX_CONFIG_FARP: |
41415862 | 1040 | case MBX_BEACON: |
dea3101e | 1041 | case MBX_LOAD_AREA: |
1042 | case MBX_RUN_BIU_DIAG64: | |
1043 | case MBX_CONFIG_PORT: | |
1044 | case MBX_READ_SPARM64: | |
1045 | case MBX_READ_RPI64: | |
1046 | case MBX_REG_LOGIN64: | |
1047 | case MBX_READ_LA64: | |
09372820 | 1048 | case MBX_WRITE_WWN: |
dea3101e | 1049 | case MBX_SET_DEBUG: |
1050 | case MBX_LOAD_EXP_ROM: | |
57127f15 | 1051 | case MBX_ASYNCEVT_ENABLE: |
92d7f7b0 JS |
1052 | case MBX_REG_VPI: |
1053 | case MBX_UNREG_VPI: | |
858c9f6c | 1054 | case MBX_HEARTBEAT: |
84774a4d JS |
1055 | case MBX_PORT_CAPABILITIES: |
1056 | case MBX_PORT_IOV_CONTROL: | |
dea3101e | 1057 | ret = mbxCommand; |
1058 | break; | |
1059 | default: | |
1060 | ret = MBX_SHUTDOWN; | |
1061 | break; | |
1062 | } | |
2e0fef85 | 1063 | return ret; |
dea3101e | 1064 | } |
e59058c4 JS |
1065 | |
1066 | /** | |
1067 | * lpfc_sli_wake_mbox_wait: Completion handler for mbox issued from | |
1068 | * lpfc_sli_issue_mbox_wait. | |
1069 | * @phba: Pointer to HBA context object. | |
1070 | * @pmboxq: Pointer to mailbox command. | |
1071 | * | |
1072 | * This is completion handler function for mailbox commands issued from | |
1073 | * lpfc_sli_issue_mbox_wait function. This function is called by the | |
1074 | * mailbox event handler function with no lock held. This function | |
1075 | * will wake up thread waiting on the wait queue pointed by context1 | |
1076 | * of the mailbox. | |
1077 | **/ | |
dea3101e | 1078 | static void |
2e0fef85 | 1079 | lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) |
dea3101e | 1080 | { |
1081 | wait_queue_head_t *pdone_q; | |
858c9f6c | 1082 | unsigned long drvr_flag; |
dea3101e | 1083 | |
1084 | /* | |
1085 | * If pdone_q is empty, the driver thread gave up waiting and | |
1086 | * continued running. | |
1087 | */ | |
7054a606 | 1088 | pmboxq->mbox_flag |= LPFC_MBX_WAKE; |
858c9f6c | 1089 | spin_lock_irqsave(&phba->hbalock, drvr_flag); |
dea3101e | 1090 | pdone_q = (wait_queue_head_t *) pmboxq->context1; |
1091 | if (pdone_q) | |
1092 | wake_up_interruptible(pdone_q); | |
858c9f6c | 1093 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 1094 | return; |
1095 | } | |
1096 | ||
e59058c4 JS |
1097 | |
1098 | /** | |
1099 | * lpfc_sli_def_mbox_cmpl: Default mailbox completion handler. | |
1100 | * @phba: Pointer to HBA context object. | |
1101 | * @pmb: Pointer to mailbox object. | |
1102 | * | |
1103 | * This function is the default mailbox completion handler. It | |
1104 | * frees the memory resources associated with the completed mailbox | |
1105 | * command. If the completed command is a REG_LOGIN mailbox command, | |
1106 | * this function will issue a UREG_LOGIN to re-claim the RPI. | |
1107 | **/ | |
dea3101e | 1108 | void |
2e0fef85 | 1109 | lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
dea3101e | 1110 | { |
1111 | struct lpfc_dmabuf *mp; | |
7054a606 JS |
1112 | uint16_t rpi; |
1113 | int rc; | |
1114 | ||
dea3101e | 1115 | mp = (struct lpfc_dmabuf *) (pmb->context1); |
7054a606 | 1116 | |
dea3101e | 1117 | if (mp) { |
1118 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
1119 | kfree(mp); | |
1120 | } | |
7054a606 JS |
1121 | |
1122 | /* | |
1123 | * If a REG_LOGIN succeeded after node is destroyed or node | |
1124 | * is in re-discovery driver need to cleanup the RPI. | |
1125 | */ | |
2e0fef85 JS |
1126 | if (!(phba->pport->load_flag & FC_UNLOADING) && |
1127 | pmb->mb.mbxCommand == MBX_REG_LOGIN64 && | |
1128 | !pmb->mb.mbxStatus) { | |
7054a606 JS |
1129 | |
1130 | rpi = pmb->mb.un.varWords[0]; | |
92d7f7b0 JS |
1131 | lpfc_unreg_login(phba, pmb->mb.un.varRegLogin.vpi, rpi, pmb); |
1132 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
7054a606 JS |
1133 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
1134 | if (rc != MBX_NOT_FINISHED) | |
1135 | return; | |
1136 | } | |
1137 | ||
2e0fef85 | 1138 | mempool_free(pmb, phba->mbox_mem_pool); |
dea3101e | 1139 | return; |
1140 | } | |
1141 | ||
e59058c4 JS |
1142 | /** |
1143 | * lpfc_sli_handle_mb_event: Handle mailbox completions from firmware. | |
1144 | * @phba: Pointer to HBA context object. | |
1145 | * | |
1146 | * This function is called with no lock held. This function processes all | |
1147 | * the completed mailbox commands and gives it to upper layers. The interrupt | |
1148 | * service routine processes mailbox completion interrupt and adds completed | |
1149 | * mailbox commands to the mboxq_cmpl queue and signals the worker thread. | |
1150 | * Worker thread call lpfc_sli_handle_mb_event, which will return the | |
1151 | * completed mailbox commands in mboxq_cmpl queue to the upper layers. This | |
1152 | * function returns the mailbox commands to the upper layer by calling the | |
1153 | * completion handler function of each mailbox. | |
1154 | **/ | |
dea3101e | 1155 | int |
2e0fef85 | 1156 | lpfc_sli_handle_mb_event(struct lpfc_hba *phba) |
dea3101e | 1157 | { |
92d7f7b0 | 1158 | MAILBOX_t *pmbox; |
dea3101e | 1159 | LPFC_MBOXQ_t *pmb; |
92d7f7b0 JS |
1160 | int rc; |
1161 | LIST_HEAD(cmplq); | |
dea3101e | 1162 | |
1163 | phba->sli.slistat.mbox_event++; | |
1164 | ||
92d7f7b0 JS |
1165 | /* Get all completed mailboxe buffers into the cmplq */ |
1166 | spin_lock_irq(&phba->hbalock); | |
1167 | list_splice_init(&phba->sli.mboxq_cmpl, &cmplq); | |
1168 | spin_unlock_irq(&phba->hbalock); | |
dea3101e | 1169 | |
92d7f7b0 JS |
1170 | /* Get a Mailbox buffer to setup mailbox commands for callback */ |
1171 | do { | |
1172 | list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list); | |
1173 | if (pmb == NULL) | |
1174 | break; | |
2e0fef85 | 1175 | |
92d7f7b0 | 1176 | pmbox = &pmb->mb; |
dea3101e | 1177 | |
858c9f6c JS |
1178 | if (pmbox->mbxCommand != MBX_HEARTBEAT) { |
1179 | if (pmb->vport) { | |
1180 | lpfc_debugfs_disc_trc(pmb->vport, | |
1181 | LPFC_DISC_TRC_MBOX_VPORT, | |
1182 | "MBOX cmpl vport: cmd:x%x mb:x%x x%x", | |
1183 | (uint32_t)pmbox->mbxCommand, | |
1184 | pmbox->un.varWords[0], | |
1185 | pmbox->un.varWords[1]); | |
1186 | } | |
1187 | else { | |
1188 | lpfc_debugfs_disc_trc(phba->pport, | |
1189 | LPFC_DISC_TRC_MBOX, | |
1190 | "MBOX cmpl: cmd:x%x mb:x%x x%x", | |
1191 | (uint32_t)pmbox->mbxCommand, | |
1192 | pmbox->un.varWords[0], | |
1193 | pmbox->un.varWords[1]); | |
1194 | } | |
1195 | } | |
1196 | ||
dea3101e | 1197 | /* |
1198 | * It is a fatal error if unknown mbox command completion. | |
1199 | */ | |
1200 | if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) == | |
1201 | MBX_SHUTDOWN) { | |
dea3101e | 1202 | /* Unknow mailbox command compl */ |
92d7f7b0 | 1203 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
e8b62011 | 1204 | "(%d):0323 Unknown Mailbox command " |
92d7f7b0 | 1205 | "%x Cmpl\n", |
92d7f7b0 JS |
1206 | pmb->vport ? pmb->vport->vpi : 0, |
1207 | pmbox->mbxCommand); | |
2e0fef85 | 1208 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 1209 | phba->work_hs = HS_FFER3; |
1210 | lpfc_handle_eratt(phba); | |
92d7f7b0 | 1211 | continue; |
dea3101e | 1212 | } |
1213 | ||
dea3101e | 1214 | if (pmbox->mbxStatus) { |
1215 | phba->sli.slistat.mbox_stat_err++; | |
1216 | if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) { | |
1217 | /* Mbox cmd cmpl error - RETRYing */ | |
92d7f7b0 JS |
1218 | lpfc_printf_log(phba, KERN_INFO, |
1219 | LOG_MBOX | LOG_SLI, | |
e8b62011 | 1220 | "(%d):0305 Mbox cmd cmpl " |
92d7f7b0 JS |
1221 | "error - RETRYing Data: x%x " |
1222 | "x%x x%x x%x\n", | |
92d7f7b0 JS |
1223 | pmb->vport ? pmb->vport->vpi :0, |
1224 | pmbox->mbxCommand, | |
1225 | pmbox->mbxStatus, | |
1226 | pmbox->un.varWords[0], | |
1227 | pmb->vport->port_state); | |
dea3101e | 1228 | pmbox->mbxStatus = 0; |
1229 | pmbox->mbxOwner = OWN_HOST; | |
2e0fef85 | 1230 | spin_lock_irq(&phba->hbalock); |
dea3101e | 1231 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 1232 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 1233 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
1234 | if (rc == MBX_SUCCESS) | |
92d7f7b0 | 1235 | continue; |
dea3101e | 1236 | } |
1237 | } | |
1238 | ||
1239 | /* Mailbox cmd <cmd> Cmpl <cmpl> */ | |
92d7f7b0 | 1240 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
e8b62011 | 1241 | "(%d):0307 Mailbox cmd x%x Cmpl x%p " |
dea3101e | 1242 | "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n", |
92d7f7b0 | 1243 | pmb->vport ? pmb->vport->vpi : 0, |
dea3101e | 1244 | pmbox->mbxCommand, |
1245 | pmb->mbox_cmpl, | |
1246 | *((uint32_t *) pmbox), | |
1247 | pmbox->un.varWords[0], | |
1248 | pmbox->un.varWords[1], | |
1249 | pmbox->un.varWords[2], | |
1250 | pmbox->un.varWords[3], | |
1251 | pmbox->un.varWords[4], | |
1252 | pmbox->un.varWords[5], | |
1253 | pmbox->un.varWords[6], | |
1254 | pmbox->un.varWords[7]); | |
1255 | ||
92d7f7b0 | 1256 | if (pmb->mbox_cmpl) |
dea3101e | 1257 | pmb->mbox_cmpl(phba,pmb); |
92d7f7b0 JS |
1258 | } while (1); |
1259 | return 0; | |
1260 | } | |
dea3101e | 1261 | |
e59058c4 JS |
1262 | /** |
1263 | * lpfc_sli_get_buff: Get the buffer associated with the buffer tag. | |
1264 | * @phba: Pointer to HBA context object. | |
1265 | * @pring: Pointer to driver SLI ring object. | |
1266 | * @tag: buffer tag. | |
1267 | * | |
1268 | * This function is called with no lock held. When QUE_BUFTAG_BIT bit | |
1269 | * is set in the tag the buffer is posted for a particular exchange, | |
1270 | * the function will return the buffer without replacing the buffer. | |
1271 | * If the buffer is for unsolicited ELS or CT traffic, this function | |
1272 | * returns the buffer and also posts another buffer to the firmware. | |
1273 | **/ | |
76bb24ef JS |
1274 | static struct lpfc_dmabuf * |
1275 | lpfc_sli_get_buff(struct lpfc_hba *phba, | |
9f1e1b50 JS |
1276 | struct lpfc_sli_ring *pring, |
1277 | uint32_t tag) | |
76bb24ef | 1278 | { |
9f1e1b50 JS |
1279 | struct hbq_dmabuf *hbq_entry; |
1280 | ||
76bb24ef JS |
1281 | if (tag & QUE_BUFTAG_BIT) |
1282 | return lpfc_sli_ring_taggedbuf_get(phba, pring, tag); | |
9f1e1b50 JS |
1283 | hbq_entry = lpfc_sli_hbqbuf_find(phba, tag); |
1284 | if (!hbq_entry) | |
1285 | return NULL; | |
1286 | return &hbq_entry->dbuf; | |
76bb24ef | 1287 | } |
57127f15 | 1288 | |
e59058c4 JS |
1289 | |
1290 | /** | |
1291 | * lpfc_sli_process_unsol_iocb: Unsolicited iocb handler. | |
1292 | * @phba: Pointer to HBA context object. | |
1293 | * @pring: Pointer to driver SLI ring object. | |
1294 | * @saveq: Pointer to the unsolicited iocb. | |
1295 | * | |
1296 | * This function is called with no lock held by the ring event handler | |
1297 | * when there is an unsolicited iocb posted to the response ring by the | |
1298 | * firmware. This function gets the buffer associated with the iocbs | |
1299 | * and calls the event handler for the ring. This function handles both | |
1300 | * qring buffers and hbq buffers. | |
1301 | * When the function returns 1 the caller can free the iocb object otherwise | |
1302 | * upper layer functions will free the iocb objects. | |
1303 | **/ | |
dea3101e | 1304 | static int |
1305 | lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
1306 | struct lpfc_iocbq *saveq) | |
1307 | { | |
1308 | IOCB_t * irsp; | |
1309 | WORD5 * w5p; | |
1310 | uint32_t Rctl, Type; | |
1311 | uint32_t match, i; | |
76bb24ef | 1312 | struct lpfc_iocbq *iocbq; |
3163f725 | 1313 | struct lpfc_dmabuf *dmzbuf; |
dea3101e | 1314 | |
1315 | match = 0; | |
1316 | irsp = &(saveq->iocb); | |
57127f15 JS |
1317 | |
1318 | if (irsp->ulpCommand == CMD_ASYNC_STATUS) { | |
1319 | if (pring->lpfc_sli_rcv_async_status) | |
1320 | pring->lpfc_sli_rcv_async_status(phba, pring, saveq); | |
1321 | else | |
1322 | lpfc_printf_log(phba, | |
1323 | KERN_WARNING, | |
1324 | LOG_SLI, | |
1325 | "0316 Ring %d handler: unexpected " | |
1326 | "ASYNC_STATUS iocb received evt_code " | |
1327 | "0x%x\n", | |
1328 | pring->ringno, | |
1329 | irsp->un.asyncstat.evt_code); | |
1330 | return 1; | |
1331 | } | |
1332 | ||
3163f725 JS |
1333 | if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) && |
1334 | (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) { | |
1335 | if (irsp->ulpBdeCount > 0) { | |
1336 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
1337 | irsp->un.ulpWord[3]); | |
1338 | lpfc_in_buf_free(phba, dmzbuf); | |
1339 | } | |
1340 | ||
1341 | if (irsp->ulpBdeCount > 1) { | |
1342 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
1343 | irsp->unsli3.sli3Words[3]); | |
1344 | lpfc_in_buf_free(phba, dmzbuf); | |
1345 | } | |
1346 | ||
1347 | if (irsp->ulpBdeCount > 2) { | |
1348 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
1349 | irsp->unsli3.sli3Words[7]); | |
1350 | lpfc_in_buf_free(phba, dmzbuf); | |
1351 | } | |
1352 | ||
1353 | return 1; | |
1354 | } | |
1355 | ||
92d7f7b0 | 1356 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
76bb24ef JS |
1357 | if (irsp->ulpBdeCount != 0) { |
1358 | saveq->context2 = lpfc_sli_get_buff(phba, pring, | |
1359 | irsp->un.ulpWord[3]); | |
1360 | if (!saveq->context2) | |
1361 | lpfc_printf_log(phba, | |
1362 | KERN_ERR, | |
1363 | LOG_SLI, | |
1364 | "0341 Ring %d Cannot find buffer for " | |
1365 | "an unsolicited iocb. tag 0x%x\n", | |
1366 | pring->ringno, | |
1367 | irsp->un.ulpWord[3]); | |
76bb24ef JS |
1368 | } |
1369 | if (irsp->ulpBdeCount == 2) { | |
1370 | saveq->context3 = lpfc_sli_get_buff(phba, pring, | |
1371 | irsp->unsli3.sli3Words[7]); | |
1372 | if (!saveq->context3) | |
1373 | lpfc_printf_log(phba, | |
1374 | KERN_ERR, | |
1375 | LOG_SLI, | |
1376 | "0342 Ring %d Cannot find buffer for an" | |
1377 | " unsolicited iocb. tag 0x%x\n", | |
1378 | pring->ringno, | |
1379 | irsp->unsli3.sli3Words[7]); | |
1380 | } | |
1381 | list_for_each_entry(iocbq, &saveq->list, list) { | |
76bb24ef | 1382 | irsp = &(iocbq->iocb); |
76bb24ef JS |
1383 | if (irsp->ulpBdeCount != 0) { |
1384 | iocbq->context2 = lpfc_sli_get_buff(phba, pring, | |
1385 | irsp->un.ulpWord[3]); | |
9c2face6 | 1386 | if (!iocbq->context2) |
76bb24ef JS |
1387 | lpfc_printf_log(phba, |
1388 | KERN_ERR, | |
1389 | LOG_SLI, | |
1390 | "0343 Ring %d Cannot find " | |
1391 | "buffer for an unsolicited iocb" | |
1392 | ". tag 0x%x\n", pring->ringno, | |
92d7f7b0 | 1393 | irsp->un.ulpWord[3]); |
76bb24ef JS |
1394 | } |
1395 | if (irsp->ulpBdeCount == 2) { | |
1396 | iocbq->context3 = lpfc_sli_get_buff(phba, pring, | |
51ef4c26 | 1397 | irsp->unsli3.sli3Words[7]); |
9c2face6 | 1398 | if (!iocbq->context3) |
76bb24ef JS |
1399 | lpfc_printf_log(phba, |
1400 | KERN_ERR, | |
1401 | LOG_SLI, | |
1402 | "0344 Ring %d Cannot find " | |
1403 | "buffer for an unsolicited " | |
1404 | "iocb. tag 0x%x\n", | |
1405 | pring->ringno, | |
1406 | irsp->unsli3.sli3Words[7]); | |
1407 | } | |
1408 | } | |
92d7f7b0 | 1409 | } |
9c2face6 JS |
1410 | if (irsp->ulpBdeCount != 0 && |
1411 | (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX || | |
1412 | irsp->ulpStatus == IOSTAT_INTERMED_RSP)) { | |
1413 | int found = 0; | |
1414 | ||
1415 | /* search continue save q for same XRI */ | |
1416 | list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) { | |
1417 | if (iocbq->iocb.ulpContext == saveq->iocb.ulpContext) { | |
1418 | list_add_tail(&saveq->list, &iocbq->list); | |
1419 | found = 1; | |
1420 | break; | |
1421 | } | |
1422 | } | |
1423 | if (!found) | |
1424 | list_add_tail(&saveq->clist, | |
1425 | &pring->iocb_continue_saveq); | |
1426 | if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) { | |
1427 | list_del_init(&iocbq->clist); | |
1428 | saveq = iocbq; | |
1429 | irsp = &(saveq->iocb); | |
1430 | } else | |
1431 | return 0; | |
1432 | } | |
1433 | if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) || | |
1434 | (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) || | |
1435 | (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) { | |
1436 | Rctl = FC_ELS_REQ; | |
1437 | Type = FC_ELS_DATA; | |
1438 | } else { | |
1439 | w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]); | |
1440 | Rctl = w5p->hcsw.Rctl; | |
1441 | Type = w5p->hcsw.Type; | |
1442 | ||
1443 | /* Firmware Workaround */ | |
1444 | if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) && | |
1445 | (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX || | |
1446 | irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) { | |
1447 | Rctl = FC_ELS_REQ; | |
1448 | Type = FC_ELS_DATA; | |
1449 | w5p->hcsw.Rctl = Rctl; | |
1450 | w5p->hcsw.Type = Type; | |
1451 | } | |
1452 | } | |
92d7f7b0 | 1453 | |
dea3101e | 1454 | /* unSolicited Responses */ |
1455 | if (pring->prt[0].profile) { | |
cf5bf97e JW |
1456 | if (pring->prt[0].lpfc_sli_rcv_unsol_event) |
1457 | (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring, | |
1458 | saveq); | |
dea3101e | 1459 | match = 1; |
1460 | } else { | |
1461 | /* We must search, based on rctl / type | |
1462 | for the right routine */ | |
9c2face6 JS |
1463 | for (i = 0; i < pring->num_mask; i++) { |
1464 | if ((pring->prt[i].rctl == Rctl) | |
1465 | && (pring->prt[i].type == Type)) { | |
cf5bf97e JW |
1466 | if (pring->prt[i].lpfc_sli_rcv_unsol_event) |
1467 | (pring->prt[i].lpfc_sli_rcv_unsol_event) | |
1468 | (phba, pring, saveq); | |
dea3101e | 1469 | match = 1; |
1470 | break; | |
1471 | } | |
1472 | } | |
1473 | } | |
1474 | if (match == 0) { | |
1475 | /* Unexpected Rctl / Type received */ | |
1476 | /* Ring <ringno> handler: unexpected | |
1477 | Rctl <Rctl> Type <Type> received */ | |
92d7f7b0 | 1478 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
e8b62011 | 1479 | "0313 Ring %d handler: unexpected Rctl x%x " |
92d7f7b0 | 1480 | "Type x%x received\n", |
e8b62011 | 1481 | pring->ringno, Rctl, Type); |
dea3101e | 1482 | } |
92d7f7b0 | 1483 | return 1; |
dea3101e | 1484 | } |
1485 | ||
e59058c4 JS |
1486 | /** |
1487 | * lpfc_sli_iocbq_lookup: Find command iocb for the given response iocb. | |
1488 | * @phba: Pointer to HBA context object. | |
1489 | * @pring: Pointer to driver SLI ring object. | |
1490 | * @prspiocb: Pointer to response iocb object. | |
1491 | * | |
1492 | * This function looks up the iocb_lookup table to get the command iocb | |
1493 | * corresponding to the given response iocb using the iotag of the | |
1494 | * response iocb. This function is called with the hbalock held. | |
1495 | * This function returns the command iocb object if it finds the command | |
1496 | * iocb else returns NULL. | |
1497 | **/ | |
dea3101e | 1498 | static struct lpfc_iocbq * |
2e0fef85 JS |
1499 | lpfc_sli_iocbq_lookup(struct lpfc_hba *phba, |
1500 | struct lpfc_sli_ring *pring, | |
1501 | struct lpfc_iocbq *prspiocb) | |
dea3101e | 1502 | { |
dea3101e | 1503 | struct lpfc_iocbq *cmd_iocb = NULL; |
1504 | uint16_t iotag; | |
1505 | ||
604a3e30 JB |
1506 | iotag = prspiocb->iocb.ulpIoTag; |
1507 | ||
1508 | if (iotag != 0 && iotag <= phba->sli.last_iotag) { | |
1509 | cmd_iocb = phba->sli.iocbq_lookup[iotag]; | |
92d7f7b0 | 1510 | list_del_init(&cmd_iocb->list); |
604a3e30 JB |
1511 | pring->txcmplq_cnt--; |
1512 | return cmd_iocb; | |
dea3101e | 1513 | } |
1514 | ||
dea3101e | 1515 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 | 1516 | "0317 iotag x%x is out off " |
604a3e30 | 1517 | "range: max iotag x%x wd0 x%x\n", |
e8b62011 | 1518 | iotag, phba->sli.last_iotag, |
604a3e30 | 1519 | *(((uint32_t *) &prspiocb->iocb) + 7)); |
dea3101e | 1520 | return NULL; |
1521 | } | |
1522 | ||
e59058c4 JS |
1523 | /** |
1524 | * lpfc_sli_process_sol_iocb: process solicited iocb completion. | |
1525 | * @phba: Pointer to HBA context object. | |
1526 | * @pring: Pointer to driver SLI ring object. | |
1527 | * @saveq: Pointer to the response iocb to be processed. | |
1528 | * | |
1529 | * This function is called by the ring event handler for non-fcp | |
1530 | * rings when there is a new response iocb in the response ring. | |
1531 | * The caller is not required to hold any locks. This function | |
1532 | * gets the command iocb associated with the response iocb and | |
1533 | * calls the completion handler for the command iocb. If there | |
1534 | * is no completion handler, the function will free the resources | |
1535 | * associated with command iocb. If the response iocb is for | |
1536 | * an already aborted command iocb, the status of the completion | |
1537 | * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED. | |
1538 | * This function always returns 1. | |
1539 | **/ | |
dea3101e | 1540 | static int |
2e0fef85 | 1541 | lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
dea3101e | 1542 | struct lpfc_iocbq *saveq) |
1543 | { | |
2e0fef85 | 1544 | struct lpfc_iocbq *cmdiocbp; |
dea3101e | 1545 | int rc = 1; |
1546 | unsigned long iflag; | |
1547 | ||
1548 | /* Based on the iotag field, get the cmd IOCB from the txcmplq */ | |
2e0fef85 | 1549 | spin_lock_irqsave(&phba->hbalock, iflag); |
604a3e30 | 1550 | cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq); |
2e0fef85 JS |
1551 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
1552 | ||
dea3101e | 1553 | if (cmdiocbp) { |
1554 | if (cmdiocbp->iocb_cmpl) { | |
ea2151b4 JS |
1555 | /* |
1556 | * If an ELS command failed send an event to mgmt | |
1557 | * application. | |
1558 | */ | |
1559 | if (saveq->iocb.ulpStatus && | |
1560 | (pring->ringno == LPFC_ELS_RING) && | |
1561 | (cmdiocbp->iocb.ulpCommand == | |
1562 | CMD_ELS_REQUEST64_CR)) | |
1563 | lpfc_send_els_failure_event(phba, | |
1564 | cmdiocbp, saveq); | |
1565 | ||
dea3101e | 1566 | /* |
1567 | * Post all ELS completions to the worker thread. | |
1568 | * All other are passed to the completion callback. | |
1569 | */ | |
1570 | if (pring->ringno == LPFC_ELS_RING) { | |
07951076 JS |
1571 | if (cmdiocbp->iocb_flag & LPFC_DRIVER_ABORTED) { |
1572 | cmdiocbp->iocb_flag &= | |
1573 | ~LPFC_DRIVER_ABORTED; | |
1574 | saveq->iocb.ulpStatus = | |
1575 | IOSTAT_LOCAL_REJECT; | |
1576 | saveq->iocb.un.ulpWord[4] = | |
1577 | IOERR_SLI_ABORTED; | |
0ff10d46 JS |
1578 | |
1579 | /* Firmware could still be in progress | |
1580 | * of DMAing payload, so don't free data | |
1581 | * buffer till after a hbeat. | |
1582 | */ | |
1583 | saveq->iocb_flag |= LPFC_DELAY_MEM_FREE; | |
07951076 | 1584 | } |
dea3101e | 1585 | } |
2e0fef85 | 1586 | (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq); |
604a3e30 JB |
1587 | } else |
1588 | lpfc_sli_release_iocbq(phba, cmdiocbp); | |
dea3101e | 1589 | } else { |
1590 | /* | |
1591 | * Unknown initiating command based on the response iotag. | |
1592 | * This could be the case on the ELS ring because of | |
1593 | * lpfc_els_abort(). | |
1594 | */ | |
1595 | if (pring->ringno != LPFC_ELS_RING) { | |
1596 | /* | |
1597 | * Ring <ringno> handler: unexpected completion IoTag | |
1598 | * <IoTag> | |
1599 | */ | |
e8b62011 JS |
1600 | lpfc_printf_vlog(cmdiocbp->vport, KERN_WARNING, LOG_SLI, |
1601 | "0322 Ring %d handler: " | |
1602 | "unexpected completion IoTag x%x " | |
1603 | "Data: x%x x%x x%x x%x\n", | |
1604 | pring->ringno, | |
1605 | saveq->iocb.ulpIoTag, | |
1606 | saveq->iocb.ulpStatus, | |
1607 | saveq->iocb.un.ulpWord[4], | |
1608 | saveq->iocb.ulpCommand, | |
1609 | saveq->iocb.ulpContext); | |
dea3101e | 1610 | } |
1611 | } | |
68876920 | 1612 | |
dea3101e | 1613 | return rc; |
1614 | } | |
1615 | ||
e59058c4 JS |
1616 | /** |
1617 | * lpfc_sli_rsp_pointers_error: Response ring pointer error handler. | |
1618 | * @phba: Pointer to HBA context object. | |
1619 | * @pring: Pointer to driver SLI ring object. | |
1620 | * | |
1621 | * This function is called from the iocb ring event handlers when | |
1622 | * put pointer is ahead of the get pointer for a ring. This function signal | |
1623 | * an error attention condition to the worker thread and the worker | |
1624 | * thread will transition the HBA to offline state. | |
1625 | **/ | |
2e0fef85 JS |
1626 | static void |
1627 | lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
875fbdfe | 1628 | { |
34b02dcd | 1629 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
875fbdfe | 1630 | /* |
025dfdaf | 1631 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger than |
875fbdfe JSEC |
1632 | * rsp ring <portRspMax> |
1633 | */ | |
1634 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 1635 | "0312 Ring %d handler: portRspPut %d " |
025dfdaf | 1636 | "is bigger than rsp ring %d\n", |
e8b62011 | 1637 | pring->ringno, le32_to_cpu(pgp->rspPutInx), |
875fbdfe JSEC |
1638 | pring->numRiocb); |
1639 | ||
2e0fef85 | 1640 | phba->link_state = LPFC_HBA_ERROR; |
875fbdfe JSEC |
1641 | |
1642 | /* | |
1643 | * All error attention handlers are posted to | |
1644 | * worker thread | |
1645 | */ | |
1646 | phba->work_ha |= HA_ERATT; | |
1647 | phba->work_hs = HS_FFER3; | |
92d7f7b0 | 1648 | |
5e9d9b82 | 1649 | lpfc_worker_wake_up(phba); |
875fbdfe JSEC |
1650 | |
1651 | return; | |
1652 | } | |
1653 | ||
9399627f JS |
1654 | /** |
1655 | * lpfc_poll_eratt: Error attention polling timer timeout handler. | |
1656 | * @ptr: Pointer to address of HBA context object. | |
1657 | * | |
1658 | * This function is invoked by the Error Attention polling timer when the | |
1659 | * timer times out. It will check the SLI Error Attention register for | |
1660 | * possible attention events. If so, it will post an Error Attention event | |
1661 | * and wake up worker thread to process it. Otherwise, it will set up the | |
1662 | * Error Attention polling timer for the next poll. | |
1663 | **/ | |
1664 | void lpfc_poll_eratt(unsigned long ptr) | |
1665 | { | |
1666 | struct lpfc_hba *phba; | |
1667 | uint32_t eratt = 0; | |
1668 | ||
1669 | phba = (struct lpfc_hba *)ptr; | |
1670 | ||
1671 | /* Check chip HA register for error event */ | |
1672 | eratt = lpfc_sli_check_eratt(phba); | |
1673 | ||
1674 | if (eratt) | |
1675 | /* Tell the worker thread there is work to do */ | |
1676 | lpfc_worker_wake_up(phba); | |
1677 | else | |
1678 | /* Restart the timer for next eratt poll */ | |
1679 | mod_timer(&phba->eratt_poll, jiffies + | |
1680 | HZ * LPFC_ERATT_POLL_INTERVAL); | |
1681 | return; | |
1682 | } | |
1683 | ||
e59058c4 JS |
1684 | /** |
1685 | * lpfc_sli_poll_fcp_ring: Handle FCP ring completion in polling mode. | |
1686 | * @phba: Pointer to HBA context object. | |
1687 | * | |
1688 | * This function is called from lpfc_queuecommand, lpfc_poll_timeout, | |
1689 | * lpfc_abort_handler and lpfc_slave_configure when FCP_RING_POLLING | |
1690 | * is enabled. | |
1691 | * | |
1692 | * The caller does not hold any lock. | |
1693 | * The function processes each response iocb in the response ring until it | |
1694 | * finds an iocb with LE bit set and chains all the iocbs upto the iocb with | |
1695 | * LE bit set. The function will call the completion handler of the command iocb | |
1696 | * if the response iocb indicates a completion for a command iocb or it is | |
1697 | * an abort completion. | |
1698 | **/ | |
2e0fef85 | 1699 | void lpfc_sli_poll_fcp_ring(struct lpfc_hba *phba) |
875fbdfe | 1700 | { |
2e0fef85 JS |
1701 | struct lpfc_sli *psli = &phba->sli; |
1702 | struct lpfc_sli_ring *pring = &psli->ring[LPFC_FCP_RING]; | |
875fbdfe JSEC |
1703 | IOCB_t *irsp = NULL; |
1704 | IOCB_t *entry = NULL; | |
1705 | struct lpfc_iocbq *cmdiocbq = NULL; | |
1706 | struct lpfc_iocbq rspiocbq; | |
34b02dcd | 1707 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
875fbdfe JSEC |
1708 | uint32_t status; |
1709 | uint32_t portRspPut, portRspMax; | |
1710 | int type; | |
1711 | uint32_t rsp_cmpl = 0; | |
875fbdfe | 1712 | uint32_t ha_copy; |
2e0fef85 | 1713 | unsigned long iflags; |
875fbdfe JSEC |
1714 | |
1715 | pring->stats.iocb_event++; | |
1716 | ||
875fbdfe JSEC |
1717 | /* |
1718 | * The next available response entry should never exceed the maximum | |
1719 | * entries. If it does, treat it as an adapter hardware error. | |
1720 | */ | |
1721 | portRspMax = pring->numRiocb; | |
1722 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1723 | if (unlikely(portRspPut >= portRspMax)) { | |
1724 | lpfc_sli_rsp_pointers_error(phba, pring); | |
1725 | return; | |
1726 | } | |
1727 | ||
1728 | rmb(); | |
1729 | while (pring->rspidx != portRspPut) { | |
ed957684 | 1730 | entry = lpfc_resp_iocb(phba, pring); |
875fbdfe JSEC |
1731 | if (++pring->rspidx >= portRspMax) |
1732 | pring->rspidx = 0; | |
1733 | ||
1734 | lpfc_sli_pcimem_bcopy((uint32_t *) entry, | |
1735 | (uint32_t *) &rspiocbq.iocb, | |
92d7f7b0 | 1736 | phba->iocb_rsp_size); |
875fbdfe JSEC |
1737 | irsp = &rspiocbq.iocb; |
1738 | type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); | |
1739 | pring->stats.iocb_rsp++; | |
1740 | rsp_cmpl++; | |
1741 | ||
1742 | if (unlikely(irsp->ulpStatus)) { | |
1743 | /* Rsp ring <ringno> error: IOCB */ | |
1744 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
e8b62011 | 1745 | "0326 Rsp Ring %d error: IOCB Data: " |
875fbdfe | 1746 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", |
e8b62011 | 1747 | pring->ringno, |
875fbdfe JSEC |
1748 | irsp->un.ulpWord[0], |
1749 | irsp->un.ulpWord[1], | |
1750 | irsp->un.ulpWord[2], | |
1751 | irsp->un.ulpWord[3], | |
1752 | irsp->un.ulpWord[4], | |
1753 | irsp->un.ulpWord[5], | |
d7c255b2 JS |
1754 | *(uint32_t *)&irsp->un1, |
1755 | *((uint32_t *)&irsp->un1 + 1)); | |
875fbdfe JSEC |
1756 | } |
1757 | ||
1758 | switch (type) { | |
1759 | case LPFC_ABORT_IOCB: | |
1760 | case LPFC_SOL_IOCB: | |
1761 | /* | |
1762 | * Idle exchange closed via ABTS from port. No iocb | |
1763 | * resources need to be recovered. | |
1764 | */ | |
1765 | if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { | |
dca9479b | 1766 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
e8b62011 JS |
1767 | "0314 IOCB cmd 0x%x " |
1768 | "processed. Skipping " | |
1769 | "completion", | |
dca9479b | 1770 | irsp->ulpCommand); |
875fbdfe JSEC |
1771 | break; |
1772 | } | |
1773 | ||
2e0fef85 | 1774 | spin_lock_irqsave(&phba->hbalock, iflags); |
875fbdfe JSEC |
1775 | cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, |
1776 | &rspiocbq); | |
2e0fef85 | 1777 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
875fbdfe JSEC |
1778 | if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { |
1779 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, | |
1780 | &rspiocbq); | |
1781 | } | |
1782 | break; | |
1783 | default: | |
1784 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
1785 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
1786 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
1787 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
1788 | MAX_MSG_DATA); | |
898eb71c JP |
1789 | dev_warn(&((phba->pcidev)->dev), |
1790 | "lpfc%d: %s\n", | |
875fbdfe JSEC |
1791 | phba->brd_no, adaptermsg); |
1792 | } else { | |
1793 | /* Unknown IOCB command */ | |
1794 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 1795 | "0321 Unknown IOCB command " |
875fbdfe | 1796 | "Data: x%x, x%x x%x x%x x%x\n", |
e8b62011 | 1797 | type, irsp->ulpCommand, |
875fbdfe JSEC |
1798 | irsp->ulpStatus, |
1799 | irsp->ulpIoTag, | |
1800 | irsp->ulpContext); | |
1801 | } | |
1802 | break; | |
1803 | } | |
1804 | ||
1805 | /* | |
1806 | * The response IOCB has been processed. Update the ring | |
1807 | * pointer in SLIM. If the port response put pointer has not | |
1808 | * been updated, sync the pgp->rspPutInx and fetch the new port | |
1809 | * response put pointer. | |
1810 | */ | |
ed957684 | 1811 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); |
875fbdfe JSEC |
1812 | |
1813 | if (pring->rspidx == portRspPut) | |
1814 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1815 | } | |
1816 | ||
1817 | ha_copy = readl(phba->HAregaddr); | |
1818 | ha_copy >>= (LPFC_FCP_RING * 4); | |
1819 | ||
1820 | if ((rsp_cmpl > 0) && (ha_copy & HA_R0RE_REQ)) { | |
2e0fef85 | 1821 | spin_lock_irqsave(&phba->hbalock, iflags); |
875fbdfe JSEC |
1822 | pring->stats.iocb_rsp_full++; |
1823 | status = ((CA_R0ATT | CA_R0RE_RSP) << (LPFC_FCP_RING * 4)); | |
1824 | writel(status, phba->CAregaddr); | |
1825 | readl(phba->CAregaddr); | |
2e0fef85 | 1826 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
875fbdfe JSEC |
1827 | } |
1828 | if ((ha_copy & HA_R0CE_RSP) && | |
1829 | (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2e0fef85 | 1830 | spin_lock_irqsave(&phba->hbalock, iflags); |
875fbdfe JSEC |
1831 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; |
1832 | pring->stats.iocb_cmd_empty++; | |
1833 | ||
1834 | /* Force update of the local copy of cmdGetInx */ | |
1835 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
1836 | lpfc_sli_resume_iocb(phba, pring); | |
1837 | ||
1838 | if ((pring->lpfc_sli_cmd_available)) | |
1839 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
1840 | ||
2e0fef85 | 1841 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
875fbdfe JSEC |
1842 | } |
1843 | ||
1844 | return; | |
1845 | } | |
1846 | ||
e59058c4 JS |
1847 | /** |
1848 | * lpfc_sli_handle_fast_ring_event: Handle ring events on FCP ring. | |
1849 | * @phba: Pointer to HBA context object. | |
1850 | * @pring: Pointer to driver SLI ring object. | |
1851 | * @mask: Host attention register mask for this ring. | |
1852 | * | |
1853 | * This function is called from the interrupt context when there is a ring | |
1854 | * event for the fcp ring. The caller does not hold any lock. | |
1855 | * The function processes each response iocb in the response ring until it | |
1856 | * finds an iocb with LE bit set and chains all the iocbs upto the iocb with | |
1857 | * LE bit set. The function will call the completion handler of the command iocb | |
1858 | * if the response iocb indicates a completion for a command iocb or it is | |
1859 | * an abort completion. The function will call lpfc_sli_process_unsol_iocb | |
1860 | * function if this is an unsolicited iocb. | |
dea3101e | 1861 | * This routine presumes LPFC_FCP_RING handling and doesn't bother |
e59058c4 JS |
1862 | * to check it explicitly. This function always returns 1. |
1863 | **/ | |
dea3101e | 1864 | static int |
2e0fef85 JS |
1865 | lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba, |
1866 | struct lpfc_sli_ring *pring, uint32_t mask) | |
dea3101e | 1867 | { |
34b02dcd | 1868 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
dea3101e | 1869 | IOCB_t *irsp = NULL; |
87f6eaff | 1870 | IOCB_t *entry = NULL; |
dea3101e | 1871 | struct lpfc_iocbq *cmdiocbq = NULL; |
1872 | struct lpfc_iocbq rspiocbq; | |
dea3101e | 1873 | uint32_t status; |
1874 | uint32_t portRspPut, portRspMax; | |
1875 | int rc = 1; | |
1876 | lpfc_iocb_type type; | |
1877 | unsigned long iflag; | |
1878 | uint32_t rsp_cmpl = 0; | |
dea3101e | 1879 | |
2e0fef85 | 1880 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e | 1881 | pring->stats.iocb_event++; |
1882 | ||
dea3101e | 1883 | /* |
1884 | * The next available response entry should never exceed the maximum | |
1885 | * entries. If it does, treat it as an adapter hardware error. | |
1886 | */ | |
1887 | portRspMax = pring->numRiocb; | |
1888 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1889 | if (unlikely(portRspPut >= portRspMax)) { | |
875fbdfe | 1890 | lpfc_sli_rsp_pointers_error(phba, pring); |
2e0fef85 | 1891 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 1892 | return 1; |
1893 | } | |
1894 | ||
1895 | rmb(); | |
1896 | while (pring->rspidx != portRspPut) { | |
87f6eaff JSEC |
1897 | /* |
1898 | * Fetch an entry off the ring and copy it into a local data | |
1899 | * structure. The copy involves a byte-swap since the | |
1900 | * network byte order and pci byte orders are different. | |
1901 | */ | |
ed957684 | 1902 | entry = lpfc_resp_iocb(phba, pring); |
858c9f6c | 1903 | phba->last_completion_time = jiffies; |
875fbdfe JSEC |
1904 | |
1905 | if (++pring->rspidx >= portRspMax) | |
1906 | pring->rspidx = 0; | |
1907 | ||
87f6eaff JSEC |
1908 | lpfc_sli_pcimem_bcopy((uint32_t *) entry, |
1909 | (uint32_t *) &rspiocbq.iocb, | |
ed957684 | 1910 | phba->iocb_rsp_size); |
a4bc3379 | 1911 | INIT_LIST_HEAD(&(rspiocbq.list)); |
87f6eaff JSEC |
1912 | irsp = &rspiocbq.iocb; |
1913 | ||
dea3101e | 1914 | type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); |
1915 | pring->stats.iocb_rsp++; | |
1916 | rsp_cmpl++; | |
1917 | ||
1918 | if (unlikely(irsp->ulpStatus)) { | |
92d7f7b0 JS |
1919 | /* |
1920 | * If resource errors reported from HBA, reduce | |
1921 | * queuedepths of the SCSI device. | |
1922 | */ | |
1923 | if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
1924 | (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) { | |
1925 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
eaf15d5b | 1926 | lpfc_rampdown_queue_depth(phba); |
92d7f7b0 JS |
1927 | spin_lock_irqsave(&phba->hbalock, iflag); |
1928 | } | |
1929 | ||
dea3101e | 1930 | /* Rsp ring <ringno> error: IOCB */ |
1931 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
e8b62011 | 1932 | "0336 Rsp Ring %d error: IOCB Data: " |
92d7f7b0 | 1933 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", |
e8b62011 | 1934 | pring->ringno, |
92d7f7b0 JS |
1935 | irsp->un.ulpWord[0], |
1936 | irsp->un.ulpWord[1], | |
1937 | irsp->un.ulpWord[2], | |
1938 | irsp->un.ulpWord[3], | |
1939 | irsp->un.ulpWord[4], | |
1940 | irsp->un.ulpWord[5], | |
d7c255b2 JS |
1941 | *(uint32_t *)&irsp->un1, |
1942 | *((uint32_t *)&irsp->un1 + 1)); | |
dea3101e | 1943 | } |
1944 | ||
1945 | switch (type) { | |
1946 | case LPFC_ABORT_IOCB: | |
1947 | case LPFC_SOL_IOCB: | |
1948 | /* | |
1949 | * Idle exchange closed via ABTS from port. No iocb | |
1950 | * resources need to be recovered. | |
1951 | */ | |
1952 | if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { | |
dca9479b | 1953 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
e8b62011 | 1954 | "0333 IOCB cmd 0x%x" |
dca9479b | 1955 | " processed. Skipping" |
92d7f7b0 | 1956 | " completion\n", |
dca9479b | 1957 | irsp->ulpCommand); |
dea3101e | 1958 | break; |
1959 | } | |
1960 | ||
604a3e30 JB |
1961 | cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, |
1962 | &rspiocbq); | |
dea3101e | 1963 | if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { |
b808608b JW |
1964 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { |
1965 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, | |
1966 | &rspiocbq); | |
1967 | } else { | |
2e0fef85 JS |
1968 | spin_unlock_irqrestore(&phba->hbalock, |
1969 | iflag); | |
b808608b JW |
1970 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, |
1971 | &rspiocbq); | |
2e0fef85 | 1972 | spin_lock_irqsave(&phba->hbalock, |
b808608b JW |
1973 | iflag); |
1974 | } | |
dea3101e | 1975 | } |
1976 | break; | |
a4bc3379 | 1977 | case LPFC_UNSOL_IOCB: |
2e0fef85 | 1978 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
a4bc3379 | 1979 | lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq); |
2e0fef85 | 1980 | spin_lock_irqsave(&phba->hbalock, iflag); |
a4bc3379 | 1981 | break; |
dea3101e | 1982 | default: |
1983 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
1984 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
1985 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
1986 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
1987 | MAX_MSG_DATA); | |
898eb71c JP |
1988 | dev_warn(&((phba->pcidev)->dev), |
1989 | "lpfc%d: %s\n", | |
dea3101e | 1990 | phba->brd_no, adaptermsg); |
1991 | } else { | |
1992 | /* Unknown IOCB command */ | |
1993 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 1994 | "0334 Unknown IOCB command " |
92d7f7b0 | 1995 | "Data: x%x, x%x x%x x%x x%x\n", |
e8b62011 | 1996 | type, irsp->ulpCommand, |
92d7f7b0 JS |
1997 | irsp->ulpStatus, |
1998 | irsp->ulpIoTag, | |
1999 | irsp->ulpContext); | |
dea3101e | 2000 | } |
2001 | break; | |
2002 | } | |
2003 | ||
2004 | /* | |
2005 | * The response IOCB has been processed. Update the ring | |
2006 | * pointer in SLIM. If the port response put pointer has not | |
2007 | * been updated, sync the pgp->rspPutInx and fetch the new port | |
2008 | * response put pointer. | |
2009 | */ | |
ed957684 | 2010 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); |
dea3101e | 2011 | |
2012 | if (pring->rspidx == portRspPut) | |
2013 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2014 | } | |
2015 | ||
2016 | if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) { | |
2017 | pring->stats.iocb_rsp_full++; | |
2018 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
2019 | writel(status, phba->CAregaddr); | |
2020 | readl(phba->CAregaddr); | |
2021 | } | |
2022 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2023 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
2024 | pring->stats.iocb_cmd_empty++; | |
2025 | ||
2026 | /* Force update of the local copy of cmdGetInx */ | |
2027 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
2028 | lpfc_sli_resume_iocb(phba, pring); | |
2029 | ||
2030 | if ((pring->lpfc_sli_cmd_available)) | |
2031 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
2032 | ||
2033 | } | |
2034 | ||
2e0fef85 | 2035 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 2036 | return rc; |
2037 | } | |
2038 | ||
e59058c4 JS |
2039 | /** |
2040 | * lpfc_sli_handle_slow_ring_event: Handle ring events for non-FCP rings. | |
2041 | * @phba: Pointer to HBA context object. | |
2042 | * @pring: Pointer to driver SLI ring object. | |
2043 | * @mask: Host attention register mask for this ring. | |
2044 | * | |
2045 | * This function is called from the worker thread when there is a ring | |
2046 | * event for non-fcp rings. The caller does not hold any lock . | |
2047 | * The function processes each response iocb in the response ring until it | |
2048 | * finds an iocb with LE bit set and chains all the iocbs upto the iocb with | |
2049 | * LE bit set. The function will call lpfc_sli_process_sol_iocb function if the | |
2050 | * response iocb indicates a completion of a command iocb. The function | |
2051 | * will call lpfc_sli_process_unsol_iocb function if this is an unsolicited | |
2052 | * iocb. The function frees the resources or calls the completion handler if | |
2053 | * this iocb is an abort completion. The function returns 0 when the allocated | |
2054 | * iocbs are not freed, otherwise returns 1. | |
2055 | **/ | |
dea3101e | 2056 | int |
2e0fef85 JS |
2057 | lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba, |
2058 | struct lpfc_sli_ring *pring, uint32_t mask) | |
dea3101e | 2059 | { |
34b02dcd | 2060 | struct lpfc_pgp *pgp; |
dea3101e | 2061 | IOCB_t *entry; |
2062 | IOCB_t *irsp = NULL; | |
2063 | struct lpfc_iocbq *rspiocbp = NULL; | |
2064 | struct lpfc_iocbq *next_iocb; | |
2065 | struct lpfc_iocbq *cmdiocbp; | |
2066 | struct lpfc_iocbq *saveq; | |
dea3101e | 2067 | uint8_t iocb_cmd_type; |
2068 | lpfc_iocb_type type; | |
2069 | uint32_t status, free_saveq; | |
2070 | uint32_t portRspPut, portRspMax; | |
2071 | int rc = 1; | |
2072 | unsigned long iflag; | |
dea3101e | 2073 | |
34b02dcd | 2074 | pgp = &phba->port_gp[pring->ringno]; |
2e0fef85 | 2075 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e | 2076 | pring->stats.iocb_event++; |
2077 | ||
dea3101e | 2078 | /* |
2079 | * The next available response entry should never exceed the maximum | |
2080 | * entries. If it does, treat it as an adapter hardware error. | |
2081 | */ | |
2082 | portRspMax = pring->numRiocb; | |
2083 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2084 | if (portRspPut >= portRspMax) { | |
2085 | /* | |
025dfdaf | 2086 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger than |
dea3101e | 2087 | * rsp ring <portRspMax> |
2088 | */ | |
ed957684 | 2089 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 | 2090 | "0303 Ring %d handler: portRspPut %d " |
025dfdaf | 2091 | "is bigger than rsp ring %d\n", |
e8b62011 | 2092 | pring->ringno, portRspPut, portRspMax); |
dea3101e | 2093 | |
2e0fef85 JS |
2094 | phba->link_state = LPFC_HBA_ERROR; |
2095 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
dea3101e | 2096 | |
2097 | phba->work_hs = HS_FFER3; | |
2098 | lpfc_handle_eratt(phba); | |
2099 | ||
2100 | return 1; | |
2101 | } | |
2102 | ||
2103 | rmb(); | |
dea3101e | 2104 | while (pring->rspidx != portRspPut) { |
2105 | /* | |
2106 | * Build a completion list and call the appropriate handler. | |
2107 | * The process is to get the next available response iocb, get | |
2108 | * a free iocb from the list, copy the response data into the | |
2109 | * free iocb, insert to the continuation list, and update the | |
2110 | * next response index to slim. This process makes response | |
2111 | * iocb's in the ring available to DMA as fast as possible but | |
2112 | * pays a penalty for a copy operation. Since the iocb is | |
2113 | * only 32 bytes, this penalty is considered small relative to | |
2114 | * the PCI reads for register values and a slim write. When | |
2115 | * the ulpLe field is set, the entire Command has been | |
2116 | * received. | |
2117 | */ | |
ed957684 JS |
2118 | entry = lpfc_resp_iocb(phba, pring); |
2119 | ||
858c9f6c | 2120 | phba->last_completion_time = jiffies; |
2e0fef85 | 2121 | rspiocbp = __lpfc_sli_get_iocbq(phba); |
dea3101e | 2122 | if (rspiocbp == NULL) { |
2123 | printk(KERN_ERR "%s: out of buffers! Failing " | |
cadbd4a5 | 2124 | "completion.\n", __func__); |
dea3101e | 2125 | break; |
2126 | } | |
2127 | ||
ed957684 JS |
2128 | lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb, |
2129 | phba->iocb_rsp_size); | |
dea3101e | 2130 | irsp = &rspiocbp->iocb; |
2131 | ||
2132 | if (++pring->rspidx >= portRspMax) | |
2133 | pring->rspidx = 0; | |
2134 | ||
a58cbd52 JS |
2135 | if (pring->ringno == LPFC_ELS_RING) { |
2136 | lpfc_debugfs_slow_ring_trc(phba, | |
2137 | "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x", | |
2138 | *(((uint32_t *) irsp) + 4), | |
2139 | *(((uint32_t *) irsp) + 6), | |
2140 | *(((uint32_t *) irsp) + 7)); | |
2141 | } | |
2142 | ||
ed957684 | 2143 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); |
dea3101e | 2144 | |
9c2face6 | 2145 | list_add_tail(&rspiocbp->list, &(pring->iocb_continueq)); |
dea3101e | 2146 | |
2147 | pring->iocb_continueq_cnt++; | |
2148 | if (irsp->ulpLe) { | |
2149 | /* | |
2150 | * By default, the driver expects to free all resources | |
2151 | * associated with this iocb completion. | |
2152 | */ | |
2153 | free_saveq = 1; | |
2154 | saveq = list_get_first(&pring->iocb_continueq, | |
2155 | struct lpfc_iocbq, list); | |
2156 | irsp = &(saveq->iocb); | |
2157 | list_del_init(&pring->iocb_continueq); | |
2158 | pring->iocb_continueq_cnt = 0; | |
2159 | ||
2160 | pring->stats.iocb_rsp++; | |
2161 | ||
92d7f7b0 JS |
2162 | /* |
2163 | * If resource errors reported from HBA, reduce | |
2164 | * queuedepths of the SCSI device. | |
2165 | */ | |
2166 | if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
2167 | (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) { | |
2168 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
eaf15d5b | 2169 | lpfc_rampdown_queue_depth(phba); |
92d7f7b0 JS |
2170 | spin_lock_irqsave(&phba->hbalock, iflag); |
2171 | } | |
2172 | ||
dea3101e | 2173 | if (irsp->ulpStatus) { |
2174 | /* Rsp ring <ringno> error: IOCB */ | |
ed957684 | 2175 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
e8b62011 | 2176 | "0328 Rsp Ring %d error: " |
ed957684 JS |
2177 | "IOCB Data: " |
2178 | "x%x x%x x%x x%x " | |
2179 | "x%x x%x x%x x%x " | |
2180 | "x%x x%x x%x x%x " | |
2181 | "x%x x%x x%x x%x\n", | |
ed957684 JS |
2182 | pring->ringno, |
2183 | irsp->un.ulpWord[0], | |
2184 | irsp->un.ulpWord[1], | |
2185 | irsp->un.ulpWord[2], | |
2186 | irsp->un.ulpWord[3], | |
2187 | irsp->un.ulpWord[4], | |
2188 | irsp->un.ulpWord[5], | |
2189 | *(((uint32_t *) irsp) + 6), | |
2190 | *(((uint32_t *) irsp) + 7), | |
2191 | *(((uint32_t *) irsp) + 8), | |
2192 | *(((uint32_t *) irsp) + 9), | |
2193 | *(((uint32_t *) irsp) + 10), | |
2194 | *(((uint32_t *) irsp) + 11), | |
2195 | *(((uint32_t *) irsp) + 12), | |
2196 | *(((uint32_t *) irsp) + 13), | |
2197 | *(((uint32_t *) irsp) + 14), | |
2198 | *(((uint32_t *) irsp) + 15)); | |
dea3101e | 2199 | } |
2200 | ||
2201 | /* | |
2202 | * Fetch the IOCB command type and call the correct | |
2203 | * completion routine. Solicited and Unsolicited | |
2204 | * IOCBs on the ELS ring get freed back to the | |
2205 | * lpfc_iocb_list by the discovery kernel thread. | |
2206 | */ | |
2207 | iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK; | |
2208 | type = lpfc_sli_iocb_cmd_type(iocb_cmd_type); | |
2209 | if (type == LPFC_SOL_IOCB) { | |
9c2face6 | 2210 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 2211 | rc = lpfc_sli_process_sol_iocb(phba, pring, |
2e0fef85 JS |
2212 | saveq); |
2213 | spin_lock_irqsave(&phba->hbalock, iflag); | |
dea3101e | 2214 | } else if (type == LPFC_UNSOL_IOCB) { |
9c2face6 | 2215 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 2216 | rc = lpfc_sli_process_unsol_iocb(phba, pring, |
2e0fef85 JS |
2217 | saveq); |
2218 | spin_lock_irqsave(&phba->hbalock, iflag); | |
9c2face6 JS |
2219 | if (!rc) |
2220 | free_saveq = 0; | |
dea3101e | 2221 | } else if (type == LPFC_ABORT_IOCB) { |
2222 | if ((irsp->ulpCommand != CMD_XRI_ABORTED_CX) && | |
2223 | ((cmdiocbp = | |
604a3e30 JB |
2224 | lpfc_sli_iocbq_lookup(phba, pring, |
2225 | saveq)))) { | |
dea3101e | 2226 | /* Call the specified completion |
2227 | routine */ | |
2228 | if (cmdiocbp->iocb_cmpl) { | |
2229 | spin_unlock_irqrestore( | |
2e0fef85 | 2230 | &phba->hbalock, |
dea3101e | 2231 | iflag); |
2232 | (cmdiocbp->iocb_cmpl) (phba, | |
2233 | cmdiocbp, saveq); | |
2234 | spin_lock_irqsave( | |
2e0fef85 | 2235 | &phba->hbalock, |
dea3101e | 2236 | iflag); |
604a3e30 | 2237 | } else |
2e0fef85 | 2238 | __lpfc_sli_release_iocbq(phba, |
604a3e30 | 2239 | cmdiocbp); |
dea3101e | 2240 | } |
2241 | } else if (type == LPFC_UNKNOWN_IOCB) { | |
2242 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
2243 | ||
2244 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
2245 | ||
2246 | memset(adaptermsg, 0, | |
2247 | LPFC_MAX_ADPTMSG); | |
2248 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
2249 | MAX_MSG_DATA); | |
2250 | dev_warn(&((phba->pcidev)->dev), | |
898eb71c | 2251 | "lpfc%d: %s\n", |
dea3101e | 2252 | phba->brd_no, adaptermsg); |
2253 | } else { | |
2254 | /* Unknown IOCB command */ | |
92d7f7b0 | 2255 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 | 2256 | "0335 Unknown IOCB " |
92d7f7b0 JS |
2257 | "command Data: x%x " |
2258 | "x%x x%x x%x\n", | |
92d7f7b0 JS |
2259 | irsp->ulpCommand, |
2260 | irsp->ulpStatus, | |
2261 | irsp->ulpIoTag, | |
2262 | irsp->ulpContext); | |
dea3101e | 2263 | } |
2264 | } | |
2265 | ||
2266 | if (free_saveq) { | |
2e0fef85 JS |
2267 | list_for_each_entry_safe(rspiocbp, next_iocb, |
2268 | &saveq->list, list) { | |
2269 | list_del(&rspiocbp->list); | |
2270 | __lpfc_sli_release_iocbq(phba, | |
2271 | rspiocbp); | |
dea3101e | 2272 | } |
2e0fef85 | 2273 | __lpfc_sli_release_iocbq(phba, saveq); |
dea3101e | 2274 | } |
92d7f7b0 | 2275 | rspiocbp = NULL; |
dea3101e | 2276 | } |
2277 | ||
2278 | /* | |
2279 | * If the port response put pointer has not been updated, sync | |
2280 | * the pgp->rspPutInx in the MAILBOX_tand fetch the new port | |
2281 | * response put pointer. | |
2282 | */ | |
2283 | if (pring->rspidx == portRspPut) { | |
2284 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2285 | } | |
2286 | } /* while (pring->rspidx != portRspPut) */ | |
2287 | ||
92d7f7b0 | 2288 | if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) { |
dea3101e | 2289 | /* At least one response entry has been freed */ |
2290 | pring->stats.iocb_rsp_full++; | |
2291 | /* SET RxRE_RSP in Chip Att register */ | |
2292 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
2293 | writel(status, phba->CAregaddr); | |
2294 | readl(phba->CAregaddr); /* flush */ | |
2295 | } | |
2296 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2297 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
2298 | pring->stats.iocb_cmd_empty++; | |
2299 | ||
2300 | /* Force update of the local copy of cmdGetInx */ | |
2301 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
2302 | lpfc_sli_resume_iocb(phba, pring); | |
2303 | ||
2304 | if ((pring->lpfc_sli_cmd_available)) | |
2305 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
2306 | ||
2307 | } | |
2308 | ||
2e0fef85 | 2309 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 2310 | return rc; |
2311 | } | |
2312 | ||
e59058c4 JS |
2313 | /** |
2314 | * lpfc_sli_abort_iocb_ring: Abort all iocbs in the ring. | |
2315 | * @phba: Pointer to HBA context object. | |
2316 | * @pring: Pointer to driver SLI ring object. | |
2317 | * | |
2318 | * This function aborts all iocbs in the given ring and frees all the iocb | |
2319 | * objects in txq. This function issues an abort iocb for all the iocb commands | |
2320 | * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before | |
2321 | * the return of this function. The caller is not required to hold any locks. | |
2322 | **/ | |
2e0fef85 | 2323 | void |
dea3101e | 2324 | lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
2325 | { | |
2534ba75 | 2326 | LIST_HEAD(completions); |
dea3101e | 2327 | struct lpfc_iocbq *iocb, *next_iocb; |
2534ba75 | 2328 | IOCB_t *cmd = NULL; |
dea3101e | 2329 | |
92d7f7b0 JS |
2330 | if (pring->ringno == LPFC_ELS_RING) { |
2331 | lpfc_fabric_abort_hba(phba); | |
2332 | } | |
2333 | ||
dea3101e | 2334 | /* Error everything on txq and txcmplq |
2335 | * First do the txq. | |
2336 | */ | |
2e0fef85 | 2337 | spin_lock_irq(&phba->hbalock); |
2534ba75 | 2338 | list_splice_init(&pring->txq, &completions); |
dea3101e | 2339 | pring->txq_cnt = 0; |
dea3101e | 2340 | |
2341 | /* Next issue ABTS for everything on the txcmplq */ | |
2534ba75 JS |
2342 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) |
2343 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); | |
dea3101e | 2344 | |
2e0fef85 | 2345 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 2346 | |
2534ba75 JS |
2347 | while (!list_empty(&completions)) { |
2348 | iocb = list_get_first(&completions, struct lpfc_iocbq, list); | |
2349 | cmd = &iocb->iocb; | |
92d7f7b0 | 2350 | list_del_init(&iocb->list); |
dea3101e | 2351 | |
2e0fef85 JS |
2352 | if (!iocb->iocb_cmpl) |
2353 | lpfc_sli_release_iocbq(phba, iocb); | |
2354 | else { | |
dea3101e | 2355 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; |
2356 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
dea3101e | 2357 | (iocb->iocb_cmpl) (phba, iocb, iocb); |
2e0fef85 | 2358 | } |
dea3101e | 2359 | } |
dea3101e | 2360 | } |
2361 | ||
a8e497d5 JS |
2362 | /** |
2363 | * lpfc_sli_flush_fcp_rings: flush all iocbs in the fcp ring. | |
2364 | * @phba: Pointer to HBA context object. | |
2365 | * | |
2366 | * This function flushes all iocbs in the fcp ring and frees all the iocb | |
2367 | * objects in txq and txcmplq. This function will not issue abort iocbs | |
2368 | * for all the iocb commands in txcmplq, they will just be returned with | |
2369 | * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI | |
2370 | * slot has been permanently disabled. | |
2371 | **/ | |
2372 | void | |
2373 | lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba) | |
2374 | { | |
2375 | LIST_HEAD(txq); | |
2376 | LIST_HEAD(txcmplq); | |
2377 | struct lpfc_iocbq *iocb; | |
2378 | IOCB_t *cmd = NULL; | |
2379 | struct lpfc_sli *psli = &phba->sli; | |
2380 | struct lpfc_sli_ring *pring; | |
2381 | ||
2382 | /* Currently, only one fcp ring */ | |
2383 | pring = &psli->ring[psli->fcp_ring]; | |
2384 | ||
2385 | spin_lock_irq(&phba->hbalock); | |
2386 | /* Retrieve everything on txq */ | |
2387 | list_splice_init(&pring->txq, &txq); | |
2388 | pring->txq_cnt = 0; | |
2389 | ||
2390 | /* Retrieve everything on the txcmplq */ | |
2391 | list_splice_init(&pring->txcmplq, &txcmplq); | |
2392 | pring->txcmplq_cnt = 0; | |
2393 | spin_unlock_irq(&phba->hbalock); | |
2394 | ||
2395 | /* Flush the txq */ | |
2396 | while (!list_empty(&txq)) { | |
2397 | iocb = list_get_first(&txq, struct lpfc_iocbq, list); | |
2398 | cmd = &iocb->iocb; | |
2399 | list_del_init(&iocb->list); | |
2400 | ||
2401 | if (!iocb->iocb_cmpl) | |
2402 | lpfc_sli_release_iocbq(phba, iocb); | |
2403 | else { | |
2404 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
2405 | cmd->un.ulpWord[4] = IOERR_SLI_DOWN; | |
2406 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
2407 | } | |
2408 | } | |
2409 | ||
2410 | /* Flush the txcmpq */ | |
2411 | while (!list_empty(&txcmplq)) { | |
2412 | iocb = list_get_first(&txcmplq, struct lpfc_iocbq, list); | |
2413 | cmd = &iocb->iocb; | |
2414 | list_del_init(&iocb->list); | |
2415 | ||
2416 | if (!iocb->iocb_cmpl) | |
2417 | lpfc_sli_release_iocbq(phba, iocb); | |
2418 | else { | |
2419 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
2420 | cmd->un.ulpWord[4] = IOERR_SLI_DOWN; | |
2421 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
2422 | } | |
2423 | } | |
2424 | } | |
2425 | ||
e59058c4 JS |
2426 | /** |
2427 | * lpfc_sli_brdready: Check for host status bits. | |
2428 | * @phba: Pointer to HBA context object. | |
2429 | * @mask: Bit mask to be checked. | |
2430 | * | |
2431 | * This function reads the host status register and compares | |
2432 | * with the provided bit mask to check if HBA completed | |
2433 | * the restart. This function will wait in a loop for the | |
2434 | * HBA to complete restart. If the HBA does not restart within | |
2435 | * 15 iterations, the function will reset the HBA again. The | |
2436 | * function returns 1 when HBA fail to restart otherwise returns | |
2437 | * zero. | |
2438 | **/ | |
41415862 | 2439 | int |
2e0fef85 | 2440 | lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask) |
dea3101e | 2441 | { |
41415862 JW |
2442 | uint32_t status; |
2443 | int i = 0; | |
2444 | int retval = 0; | |
dea3101e | 2445 | |
41415862 JW |
2446 | /* Read the HBA Host Status Register */ |
2447 | status = readl(phba->HSregaddr); | |
dea3101e | 2448 | |
41415862 JW |
2449 | /* |
2450 | * Check status register every 100ms for 5 retries, then every | |
2451 | * 500ms for 5, then every 2.5 sec for 5, then reset board and | |
2452 | * every 2.5 sec for 4. | |
2453 | * Break our of the loop if errors occurred during init. | |
2454 | */ | |
2455 | while (((status & mask) != mask) && | |
2456 | !(status & HS_FFERM) && | |
2457 | i++ < 20) { | |
dea3101e | 2458 | |
41415862 JW |
2459 | if (i <= 5) |
2460 | msleep(10); | |
2461 | else if (i <= 10) | |
2462 | msleep(500); | |
2463 | else | |
2464 | msleep(2500); | |
dea3101e | 2465 | |
41415862 | 2466 | if (i == 15) { |
2e0fef85 | 2467 | /* Do post */ |
92d7f7b0 | 2468 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 JW |
2469 | lpfc_sli_brdrestart(phba); |
2470 | } | |
2471 | /* Read the HBA Host Status Register */ | |
2472 | status = readl(phba->HSregaddr); | |
2473 | } | |
dea3101e | 2474 | |
41415862 JW |
2475 | /* Check to see if any errors occurred during init */ |
2476 | if ((status & HS_FFERM) || (i >= 20)) { | |
2e0fef85 | 2477 | phba->link_state = LPFC_HBA_ERROR; |
41415862 | 2478 | retval = 1; |
dea3101e | 2479 | } |
dea3101e | 2480 | |
41415862 JW |
2481 | return retval; |
2482 | } | |
dea3101e | 2483 | |
9290831f JS |
2484 | #define BARRIER_TEST_PATTERN (0xdeadbeef) |
2485 | ||
e59058c4 JS |
2486 | /** |
2487 | * lpfc_reset_barrier: Make HBA ready for HBA reset. | |
2488 | * @phba: Pointer to HBA context object. | |
2489 | * | |
2490 | * This function is called before resetting an HBA. This | |
2491 | * function requests HBA to quiesce DMAs before a reset. | |
2492 | **/ | |
2e0fef85 | 2493 | void lpfc_reset_barrier(struct lpfc_hba *phba) |
9290831f | 2494 | { |
65a29c16 JS |
2495 | uint32_t __iomem *resp_buf; |
2496 | uint32_t __iomem *mbox_buf; | |
9290831f JS |
2497 | volatile uint32_t mbox; |
2498 | uint32_t hc_copy; | |
2499 | int i; | |
2500 | uint8_t hdrtype; | |
2501 | ||
2502 | pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype); | |
2503 | if (hdrtype != 0x80 || | |
2504 | (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID && | |
2505 | FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID)) | |
2506 | return; | |
2507 | ||
2508 | /* | |
2509 | * Tell the other part of the chip to suspend temporarily all | |
2510 | * its DMA activity. | |
2511 | */ | |
65a29c16 | 2512 | resp_buf = phba->MBslimaddr; |
9290831f JS |
2513 | |
2514 | /* Disable the error attention */ | |
2515 | hc_copy = readl(phba->HCregaddr); | |
2516 | writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr); | |
2517 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 | 2518 | phba->link_flag |= LS_IGNORE_ERATT; |
9290831f JS |
2519 | |
2520 | if (readl(phba->HAregaddr) & HA_ERATT) { | |
2521 | /* Clear Chip error bit */ | |
2522 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 2523 | phba->pport->stopped = 1; |
9290831f JS |
2524 | } |
2525 | ||
2526 | mbox = 0; | |
2527 | ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD; | |
2528 | ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP; | |
2529 | ||
2530 | writel(BARRIER_TEST_PATTERN, (resp_buf + 1)); | |
65a29c16 | 2531 | mbox_buf = phba->MBslimaddr; |
9290831f JS |
2532 | writel(mbox, mbox_buf); |
2533 | ||
2534 | for (i = 0; | |
2535 | readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++) | |
2536 | mdelay(1); | |
2537 | ||
2538 | if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) { | |
2539 | if (phba->sli.sli_flag & LPFC_SLI2_ACTIVE || | |
2e0fef85 | 2540 | phba->pport->stopped) |
9290831f JS |
2541 | goto restore_hc; |
2542 | else | |
2543 | goto clear_errat; | |
2544 | } | |
2545 | ||
2546 | ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST; | |
2547 | for (i = 0; readl(resp_buf) != mbox && i < 500; i++) | |
2548 | mdelay(1); | |
2549 | ||
2550 | clear_errat: | |
2551 | ||
2552 | while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500) | |
2553 | mdelay(1); | |
2554 | ||
2555 | if (readl(phba->HAregaddr) & HA_ERATT) { | |
2556 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 2557 | phba->pport->stopped = 1; |
9290831f JS |
2558 | } |
2559 | ||
2560 | restore_hc: | |
2e0fef85 | 2561 | phba->link_flag &= ~LS_IGNORE_ERATT; |
9290831f JS |
2562 | writel(hc_copy, phba->HCregaddr); |
2563 | readl(phba->HCregaddr); /* flush */ | |
2564 | } | |
2565 | ||
e59058c4 JS |
2566 | /** |
2567 | * lpfc_sli_brdkill: Issue a kill_board mailbox command. | |
2568 | * @phba: Pointer to HBA context object. | |
2569 | * | |
2570 | * This function issues a kill_board mailbox command and waits for | |
2571 | * the error attention interrupt. This function is called for stopping | |
2572 | * the firmware processing. The caller is not required to hold any | |
2573 | * locks. This function calls lpfc_hba_down_post function to free | |
2574 | * any pending commands after the kill. The function will return 1 when it | |
2575 | * fails to kill the board else will return 0. | |
2576 | **/ | |
41415862 | 2577 | int |
2e0fef85 | 2578 | lpfc_sli_brdkill(struct lpfc_hba *phba) |
41415862 JW |
2579 | { |
2580 | struct lpfc_sli *psli; | |
2581 | LPFC_MBOXQ_t *pmb; | |
2582 | uint32_t status; | |
2583 | uint32_t ha_copy; | |
2584 | int retval; | |
2585 | int i = 0; | |
dea3101e | 2586 | |
41415862 | 2587 | psli = &phba->sli; |
dea3101e | 2588 | |
41415862 | 2589 | /* Kill HBA */ |
ed957684 | 2590 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
e8b62011 JS |
2591 | "0329 Kill HBA Data: x%x x%x\n", |
2592 | phba->pport->port_state, psli->sli_flag); | |
41415862 | 2593 | |
98c9ea5c JS |
2594 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
2595 | if (!pmb) | |
41415862 | 2596 | return 1; |
41415862 JW |
2597 | |
2598 | /* Disable the error attention */ | |
2e0fef85 | 2599 | spin_lock_irq(&phba->hbalock); |
41415862 JW |
2600 | status = readl(phba->HCregaddr); |
2601 | status &= ~HC_ERINT_ENA; | |
2602 | writel(status, phba->HCregaddr); | |
2603 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 JS |
2604 | phba->link_flag |= LS_IGNORE_ERATT; |
2605 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
2606 | |
2607 | lpfc_kill_board(phba, pmb); | |
2608 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
2609 | retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
2610 | ||
2611 | if (retval != MBX_SUCCESS) { | |
2612 | if (retval != MBX_BUSY) | |
2613 | mempool_free(pmb, phba->mbox_mem_pool); | |
2e0fef85 JS |
2614 | spin_lock_irq(&phba->hbalock); |
2615 | phba->link_flag &= ~LS_IGNORE_ERATT; | |
2616 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
2617 | return 1; |
2618 | } | |
2619 | ||
9290831f JS |
2620 | psli->sli_flag &= ~LPFC_SLI2_ACTIVE; |
2621 | ||
41415862 JW |
2622 | mempool_free(pmb, phba->mbox_mem_pool); |
2623 | ||
2624 | /* There is no completion for a KILL_BOARD mbox cmd. Check for an error | |
2625 | * attention every 100ms for 3 seconds. If we don't get ERATT after | |
2626 | * 3 seconds we still set HBA_ERROR state because the status of the | |
2627 | * board is now undefined. | |
2628 | */ | |
2629 | ha_copy = readl(phba->HAregaddr); | |
2630 | ||
2631 | while ((i++ < 30) && !(ha_copy & HA_ERATT)) { | |
2632 | mdelay(100); | |
2633 | ha_copy = readl(phba->HAregaddr); | |
2634 | } | |
2635 | ||
2636 | del_timer_sync(&psli->mbox_tmo); | |
9290831f JS |
2637 | if (ha_copy & HA_ERATT) { |
2638 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 2639 | phba->pport->stopped = 1; |
9290831f | 2640 | } |
2e0fef85 | 2641 | spin_lock_irq(&phba->hbalock); |
41415862 | 2642 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 JS |
2643 | phba->link_flag &= ~LS_IGNORE_ERATT; |
2644 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
2645 | |
2646 | psli->mbox_active = NULL; | |
2647 | lpfc_hba_down_post(phba); | |
2e0fef85 | 2648 | phba->link_state = LPFC_HBA_ERROR; |
41415862 | 2649 | |
2e0fef85 | 2650 | return ha_copy & HA_ERATT ? 0 : 1; |
dea3101e | 2651 | } |
2652 | ||
e59058c4 JS |
2653 | /** |
2654 | * lpfc_sli_brdreset: Reset the HBA. | |
2655 | * @phba: Pointer to HBA context object. | |
2656 | * | |
2657 | * This function resets the HBA by writing HC_INITFF to the control | |
2658 | * register. After the HBA resets, this function resets all the iocb ring | |
2659 | * indices. This function disables PCI layer parity checking during | |
2660 | * the reset. | |
2661 | * This function returns 0 always. | |
2662 | * The caller is not required to hold any locks. | |
2663 | **/ | |
41415862 | 2664 | int |
2e0fef85 | 2665 | lpfc_sli_brdreset(struct lpfc_hba *phba) |
dea3101e | 2666 | { |
41415862 | 2667 | struct lpfc_sli *psli; |
dea3101e | 2668 | struct lpfc_sli_ring *pring; |
41415862 | 2669 | uint16_t cfg_value; |
dea3101e | 2670 | int i; |
dea3101e | 2671 | |
41415862 | 2672 | psli = &phba->sli; |
dea3101e | 2673 | |
41415862 JW |
2674 | /* Reset HBA */ |
2675 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 2676 | "0325 Reset HBA Data: x%x x%x\n", |
2e0fef85 | 2677 | phba->pport->port_state, psli->sli_flag); |
dea3101e | 2678 | |
2679 | /* perform board reset */ | |
2680 | phba->fc_eventTag = 0; | |
2e0fef85 JS |
2681 | phba->pport->fc_myDID = 0; |
2682 | phba->pport->fc_prevDID = 0; | |
dea3101e | 2683 | |
41415862 JW |
2684 | /* Turn off parity checking and serr during the physical reset */ |
2685 | pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value); | |
2686 | pci_write_config_word(phba->pcidev, PCI_COMMAND, | |
2687 | (cfg_value & | |
2688 | ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR))); | |
2689 | ||
1c067a42 | 2690 | psli->sli_flag &= ~(LPFC_SLI2_ACTIVE | LPFC_PROCESS_LA); |
41415862 JW |
2691 | /* Now toggle INITFF bit in the Host Control Register */ |
2692 | writel(HC_INITFF, phba->HCregaddr); | |
2693 | mdelay(1); | |
2694 | readl(phba->HCregaddr); /* flush */ | |
2695 | writel(0, phba->HCregaddr); | |
2696 | readl(phba->HCregaddr); /* flush */ | |
2697 | ||
2698 | /* Restore PCI cmd register */ | |
2699 | pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value); | |
dea3101e | 2700 | |
2701 | /* Initialize relevant SLI info */ | |
41415862 JW |
2702 | for (i = 0; i < psli->num_rings; i++) { |
2703 | pring = &psli->ring[i]; | |
dea3101e | 2704 | pring->flag = 0; |
2705 | pring->rspidx = 0; | |
2706 | pring->next_cmdidx = 0; | |
2707 | pring->local_getidx = 0; | |
2708 | pring->cmdidx = 0; | |
2709 | pring->missbufcnt = 0; | |
2710 | } | |
dea3101e | 2711 | |
2e0fef85 | 2712 | phba->link_state = LPFC_WARM_START; |
41415862 JW |
2713 | return 0; |
2714 | } | |
2715 | ||
e59058c4 JS |
2716 | /** |
2717 | * lpfc_sli_brdrestart: Restart the HBA. | |
2718 | * @phba: Pointer to HBA context object. | |
2719 | * | |
2720 | * This function is called in the SLI initialization code path to | |
2721 | * restart the HBA. The caller is not required to hold any lock. | |
2722 | * This function writes MBX_RESTART mailbox command to the SLIM and | |
2723 | * resets the HBA. At the end of the function, it calls lpfc_hba_down_post | |
2724 | * function to free any pending commands. The function enables | |
2725 | * POST only during the first initialization. The function returns zero. | |
2726 | * The function does not guarantee completion of MBX_RESTART mailbox | |
2727 | * command before the return of this function. | |
2728 | **/ | |
41415862 | 2729 | int |
2e0fef85 | 2730 | lpfc_sli_brdrestart(struct lpfc_hba *phba) |
41415862 JW |
2731 | { |
2732 | MAILBOX_t *mb; | |
2733 | struct lpfc_sli *psli; | |
41415862 JW |
2734 | volatile uint32_t word0; |
2735 | void __iomem *to_slim; | |
2736 | ||
2e0fef85 | 2737 | spin_lock_irq(&phba->hbalock); |
41415862 JW |
2738 | |
2739 | psli = &phba->sli; | |
2740 | ||
2741 | /* Restart HBA */ | |
2742 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 2743 | "0337 Restart HBA Data: x%x x%x\n", |
2e0fef85 | 2744 | phba->pport->port_state, psli->sli_flag); |
41415862 JW |
2745 | |
2746 | word0 = 0; | |
2747 | mb = (MAILBOX_t *) &word0; | |
2748 | mb->mbxCommand = MBX_RESTART; | |
2749 | mb->mbxHc = 1; | |
2750 | ||
9290831f JS |
2751 | lpfc_reset_barrier(phba); |
2752 | ||
41415862 JW |
2753 | to_slim = phba->MBslimaddr; |
2754 | writel(*(uint32_t *) mb, to_slim); | |
2755 | readl(to_slim); /* flush */ | |
2756 | ||
2757 | /* Only skip post after fc_ffinit is completed */ | |
eaf15d5b | 2758 | if (phba->pport->port_state) |
41415862 | 2759 | word0 = 1; /* This is really setting up word1 */ |
eaf15d5b | 2760 | else |
41415862 | 2761 | word0 = 0; /* This is really setting up word1 */ |
65a29c16 | 2762 | to_slim = phba->MBslimaddr + sizeof (uint32_t); |
41415862 JW |
2763 | writel(*(uint32_t *) mb, to_slim); |
2764 | readl(to_slim); /* flush */ | |
dea3101e | 2765 | |
41415862 | 2766 | lpfc_sli_brdreset(phba); |
2e0fef85 JS |
2767 | phba->pport->stopped = 0; |
2768 | phba->link_state = LPFC_INIT_START; | |
41415862 | 2769 | |
2e0fef85 | 2770 | spin_unlock_irq(&phba->hbalock); |
41415862 | 2771 | |
64ba8818 JS |
2772 | memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets)); |
2773 | psli->stats_start = get_seconds(); | |
2774 | ||
eaf15d5b JS |
2775 | /* Give the INITFF and Post time to settle. */ |
2776 | mdelay(100); | |
41415862 JW |
2777 | |
2778 | lpfc_hba_down_post(phba); | |
dea3101e | 2779 | |
2780 | return 0; | |
2781 | } | |
2782 | ||
e59058c4 JS |
2783 | /** |
2784 | * lpfc_sli_chipset_init: Wait for the restart of the HBA after a restart. | |
2785 | * @phba: Pointer to HBA context object. | |
2786 | * | |
2787 | * This function is called after a HBA restart to wait for successful | |
2788 | * restart of the HBA. Successful restart of the HBA is indicated by | |
2789 | * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15 | |
2790 | * iteration, the function will restart the HBA again. The function returns | |
2791 | * zero if HBA successfully restarted else returns negative error code. | |
2792 | **/ | |
dea3101e | 2793 | static int |
2794 | lpfc_sli_chipset_init(struct lpfc_hba *phba) | |
2795 | { | |
2796 | uint32_t status, i = 0; | |
2797 | ||
2798 | /* Read the HBA Host Status Register */ | |
2799 | status = readl(phba->HSregaddr); | |
2800 | ||
2801 | /* Check status register to see what current state is */ | |
2802 | i = 0; | |
2803 | while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) { | |
2804 | ||
2805 | /* Check every 100ms for 5 retries, then every 500ms for 5, then | |
2806 | * every 2.5 sec for 5, then reset board and every 2.5 sec for | |
2807 | * 4. | |
2808 | */ | |
2809 | if (i++ >= 20) { | |
2810 | /* Adapter failed to init, timeout, status reg | |
2811 | <status> */ | |
ed957684 | 2812 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 2813 | "0436 Adapter failed to init, " |
09372820 JS |
2814 | "timeout, status reg x%x, " |
2815 | "FW Data: A8 x%x AC x%x\n", status, | |
2816 | readl(phba->MBslimaddr + 0xa8), | |
2817 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 2818 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 2819 | return -ETIMEDOUT; |
2820 | } | |
2821 | ||
2822 | /* Check to see if any errors occurred during init */ | |
2823 | if (status & HS_FFERM) { | |
2824 | /* ERROR: During chipset initialization */ | |
2825 | /* Adapter failed to init, chipset, status reg | |
2826 | <status> */ | |
ed957684 | 2827 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 2828 | "0437 Adapter failed to init, " |
09372820 JS |
2829 | "chipset, status reg x%x, " |
2830 | "FW Data: A8 x%x AC x%x\n", status, | |
2831 | readl(phba->MBslimaddr + 0xa8), | |
2832 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 2833 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 2834 | return -EIO; |
2835 | } | |
2836 | ||
2837 | if (i <= 5) { | |
2838 | msleep(10); | |
2839 | } else if (i <= 10) { | |
2840 | msleep(500); | |
2841 | } else { | |
2842 | msleep(2500); | |
2843 | } | |
2844 | ||
2845 | if (i == 15) { | |
2e0fef85 | 2846 | /* Do post */ |
92d7f7b0 | 2847 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 | 2848 | lpfc_sli_brdrestart(phba); |
dea3101e | 2849 | } |
2850 | /* Read the HBA Host Status Register */ | |
2851 | status = readl(phba->HSregaddr); | |
2852 | } | |
2853 | ||
2854 | /* Check to see if any errors occurred during init */ | |
2855 | if (status & HS_FFERM) { | |
2856 | /* ERROR: During chipset initialization */ | |
2857 | /* Adapter failed to init, chipset, status reg <status> */ | |
ed957684 | 2858 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 2859 | "0438 Adapter failed to init, chipset, " |
09372820 JS |
2860 | "status reg x%x, " |
2861 | "FW Data: A8 x%x AC x%x\n", status, | |
2862 | readl(phba->MBslimaddr + 0xa8), | |
2863 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 2864 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 2865 | return -EIO; |
2866 | } | |
2867 | ||
2868 | /* Clear all interrupt enable conditions */ | |
2869 | writel(0, phba->HCregaddr); | |
2870 | readl(phba->HCregaddr); /* flush */ | |
2871 | ||
2872 | /* setup host attn register */ | |
2873 | writel(0xffffffff, phba->HAregaddr); | |
2874 | readl(phba->HAregaddr); /* flush */ | |
2875 | return 0; | |
2876 | } | |
2877 | ||
e59058c4 JS |
2878 | /** |
2879 | * lpfc_sli_hbq_count: Get the number of HBQs to be configured. | |
2880 | * | |
2881 | * This function calculates and returns the number of HBQs required to be | |
2882 | * configured. | |
2883 | **/ | |
78b2d852 | 2884 | int |
ed957684 JS |
2885 | lpfc_sli_hbq_count(void) |
2886 | { | |
92d7f7b0 | 2887 | return ARRAY_SIZE(lpfc_hbq_defs); |
ed957684 JS |
2888 | } |
2889 | ||
e59058c4 JS |
2890 | /** |
2891 | * lpfc_sli_hbq_entry_count: Calculate total number of hbq entries. | |
2892 | * | |
2893 | * This function adds the number of hbq entries in every HBQ to get | |
2894 | * the total number of hbq entries required for the HBA and returns | |
2895 | * the total count. | |
2896 | **/ | |
ed957684 JS |
2897 | static int |
2898 | lpfc_sli_hbq_entry_count(void) | |
2899 | { | |
2900 | int hbq_count = lpfc_sli_hbq_count(); | |
2901 | int count = 0; | |
2902 | int i; | |
2903 | ||
2904 | for (i = 0; i < hbq_count; ++i) | |
92d7f7b0 | 2905 | count += lpfc_hbq_defs[i]->entry_count; |
ed957684 JS |
2906 | return count; |
2907 | } | |
2908 | ||
e59058c4 JS |
2909 | /** |
2910 | * lpfc_sli_hbq_size: Calculate memory required for all hbq entries. | |
2911 | * | |
2912 | * This function calculates amount of memory required for all hbq entries | |
2913 | * to be configured and returns the total memory required. | |
2914 | **/ | |
dea3101e | 2915 | int |
ed957684 JS |
2916 | lpfc_sli_hbq_size(void) |
2917 | { | |
2918 | return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry); | |
2919 | } | |
2920 | ||
e59058c4 JS |
2921 | /** |
2922 | * lpfc_sli_hbq_setup: configure and initialize HBQs. | |
2923 | * @phba: Pointer to HBA context object. | |
2924 | * | |
2925 | * This function is called during the SLI initialization to configure | |
2926 | * all the HBQs and post buffers to the HBQ. The caller is not | |
2927 | * required to hold any locks. This function will return zero if successful | |
2928 | * else it will return negative error code. | |
2929 | **/ | |
ed957684 JS |
2930 | static int |
2931 | lpfc_sli_hbq_setup(struct lpfc_hba *phba) | |
2932 | { | |
2933 | int hbq_count = lpfc_sli_hbq_count(); | |
2934 | LPFC_MBOXQ_t *pmb; | |
2935 | MAILBOX_t *pmbox; | |
2936 | uint32_t hbqno; | |
2937 | uint32_t hbq_entry_index; | |
ed957684 | 2938 | |
92d7f7b0 JS |
2939 | /* Get a Mailbox buffer to setup mailbox |
2940 | * commands for HBA initialization | |
2941 | */ | |
ed957684 JS |
2942 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
2943 | ||
2944 | if (!pmb) | |
2945 | return -ENOMEM; | |
2946 | ||
2947 | pmbox = &pmb->mb; | |
2948 | ||
2949 | /* Initialize the struct lpfc_sli_hbq structure for each hbq */ | |
2950 | phba->link_state = LPFC_INIT_MBX_CMDS; | |
3163f725 | 2951 | phba->hbq_in_use = 1; |
ed957684 JS |
2952 | |
2953 | hbq_entry_index = 0; | |
2954 | for (hbqno = 0; hbqno < hbq_count; ++hbqno) { | |
2955 | phba->hbqs[hbqno].next_hbqPutIdx = 0; | |
2956 | phba->hbqs[hbqno].hbqPutIdx = 0; | |
2957 | phba->hbqs[hbqno].local_hbqGetIdx = 0; | |
2958 | phba->hbqs[hbqno].entry_count = | |
92d7f7b0 | 2959 | lpfc_hbq_defs[hbqno]->entry_count; |
51ef4c26 JS |
2960 | lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno], |
2961 | hbq_entry_index, pmb); | |
ed957684 JS |
2962 | hbq_entry_index += phba->hbqs[hbqno].entry_count; |
2963 | ||
2964 | if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { | |
2965 | /* Adapter failed to init, mbxCmd <cmd> CFG_RING, | |
2966 | mbxStatus <status>, ring <num> */ | |
2967 | ||
2968 | lpfc_printf_log(phba, KERN_ERR, | |
92d7f7b0 | 2969 | LOG_SLI | LOG_VPORT, |
e8b62011 | 2970 | "1805 Adapter failed to init. " |
ed957684 | 2971 | "Data: x%x x%x x%x\n", |
e8b62011 | 2972 | pmbox->mbxCommand, |
ed957684 JS |
2973 | pmbox->mbxStatus, hbqno); |
2974 | ||
2975 | phba->link_state = LPFC_HBA_ERROR; | |
2976 | mempool_free(pmb, phba->mbox_mem_pool); | |
ed957684 JS |
2977 | return ENXIO; |
2978 | } | |
2979 | } | |
2980 | phba->hbq_count = hbq_count; | |
2981 | ||
ed957684 JS |
2982 | mempool_free(pmb, phba->mbox_mem_pool); |
2983 | ||
92d7f7b0 | 2984 | /* Initially populate or replenish the HBQs */ |
d7c255b2 JS |
2985 | for (hbqno = 0; hbqno < hbq_count; ++hbqno) |
2986 | lpfc_sli_hbqbuf_init_hbqs(phba, hbqno); | |
ed957684 JS |
2987 | return 0; |
2988 | } | |
2989 | ||
e59058c4 | 2990 | /** |
9399627f | 2991 | * lpfc_sli_config_port: Issue config port mailbox command. |
e59058c4 JS |
2992 | * @phba: Pointer to HBA context object. |
2993 | * @sli_mode: sli mode - 2/3 | |
2994 | * | |
2995 | * This function is called by the sli intialization code path | |
2996 | * to issue config_port mailbox command. This function restarts the | |
2997 | * HBA firmware and issues a config_port mailbox command to configure | |
2998 | * the SLI interface in the sli mode specified by sli_mode | |
2999 | * variable. The caller is not required to hold any locks. | |
3000 | * The function returns 0 if successful, else returns negative error | |
3001 | * code. | |
3002 | **/ | |
9399627f JS |
3003 | int |
3004 | lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode) | |
dea3101e | 3005 | { |
3006 | LPFC_MBOXQ_t *pmb; | |
3007 | uint32_t resetcount = 0, rc = 0, done = 0; | |
3008 | ||
3009 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
3010 | if (!pmb) { | |
2e0fef85 | 3011 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 3012 | return -ENOMEM; |
3013 | } | |
3014 | ||
ed957684 | 3015 | phba->sli_rev = sli_mode; |
dea3101e | 3016 | while (resetcount < 2 && !done) { |
2e0fef85 | 3017 | spin_lock_irq(&phba->hbalock); |
1c067a42 | 3018 | phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3019 | spin_unlock_irq(&phba->hbalock); |
92d7f7b0 | 3020 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 | 3021 | lpfc_sli_brdrestart(phba); |
dea3101e | 3022 | rc = lpfc_sli_chipset_init(phba); |
3023 | if (rc) | |
3024 | break; | |
3025 | ||
2e0fef85 | 3026 | spin_lock_irq(&phba->hbalock); |
1c067a42 | 3027 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3028 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 3029 | resetcount++; |
3030 | ||
ed957684 JS |
3031 | /* Call pre CONFIG_PORT mailbox command initialization. A |
3032 | * value of 0 means the call was successful. Any other | |
3033 | * nonzero value is a failure, but if ERESTART is returned, | |
3034 | * the driver may reset the HBA and try again. | |
3035 | */ | |
dea3101e | 3036 | rc = lpfc_config_port_prep(phba); |
3037 | if (rc == -ERESTART) { | |
ed957684 | 3038 | phba->link_state = LPFC_LINK_UNKNOWN; |
dea3101e | 3039 | continue; |
34b02dcd | 3040 | } else if (rc) |
dea3101e | 3041 | break; |
2e0fef85 | 3042 | phba->link_state = LPFC_INIT_MBX_CMDS; |
dea3101e | 3043 | lpfc_config_port(phba, pmb); |
3044 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
34b02dcd JS |
3045 | phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED | |
3046 | LPFC_SLI3_HBQ_ENABLED | | |
3047 | LPFC_SLI3_CRP_ENABLED | | |
e2a0a9d6 JS |
3048 | LPFC_SLI3_INB_ENABLED | |
3049 | LPFC_SLI3_BG_ENABLED); | |
ed957684 | 3050 | if (rc != MBX_SUCCESS) { |
dea3101e | 3051 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 3052 | "0442 Adapter failed to init, mbxCmd x%x " |
92d7f7b0 | 3053 | "CONFIG_PORT, mbxStatus x%x Data: x%x\n", |
e8b62011 | 3054 | pmb->mb.mbxCommand, pmb->mb.mbxStatus, 0); |
2e0fef85 | 3055 | spin_lock_irq(&phba->hbalock); |
dea3101e | 3056 | phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE; |
2e0fef85 JS |
3057 | spin_unlock_irq(&phba->hbalock); |
3058 | rc = -ENXIO; | |
34b02dcd | 3059 | } else |
ed957684 | 3060 | done = 1; |
dea3101e | 3061 | } |
ed957684 JS |
3062 | if (!done) { |
3063 | rc = -EINVAL; | |
3064 | goto do_prep_failed; | |
3065 | } | |
34b02dcd JS |
3066 | if (pmb->mb.un.varCfgPort.sli_mode == 3) { |
3067 | if (!pmb->mb.un.varCfgPort.cMA) { | |
3068 | rc = -ENXIO; | |
3069 | goto do_prep_failed; | |
3070 | } | |
3071 | if (phba->max_vpi && pmb->mb.un.varCfgPort.gmv) { | |
3072 | phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; | |
3073 | phba->max_vpi = pmb->mb.un.varCfgPort.max_vpi; | |
3074 | } else | |
3075 | phba->max_vpi = 0; | |
3076 | if (pmb->mb.un.varCfgPort.gerbm) | |
3077 | phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED; | |
3078 | if (pmb->mb.un.varCfgPort.gcrp) | |
3079 | phba->sli3_options |= LPFC_SLI3_CRP_ENABLED; | |
3080 | if (pmb->mb.un.varCfgPort.ginb) { | |
3081 | phba->sli3_options |= LPFC_SLI3_INB_ENABLED; | |
8f34f4ce | 3082 | phba->hbq_get = phba->mbox->us.s3_inb_pgp.hbq_get; |
34b02dcd JS |
3083 | phba->port_gp = phba->mbox->us.s3_inb_pgp.port; |
3084 | phba->inb_ha_copy = &phba->mbox->us.s3_inb_pgp.ha_copy; | |
3085 | phba->inb_counter = &phba->mbox->us.s3_inb_pgp.counter; | |
3086 | phba->inb_last_counter = | |
3087 | phba->mbox->us.s3_inb_pgp.counter; | |
3088 | } else { | |
8f34f4ce | 3089 | phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get; |
34b02dcd JS |
3090 | phba->port_gp = phba->mbox->us.s3_pgp.port; |
3091 | phba->inb_ha_copy = NULL; | |
3092 | phba->inb_counter = NULL; | |
3093 | } | |
e2a0a9d6 JS |
3094 | |
3095 | if (phba->cfg_enable_bg) { | |
3096 | if (pmb->mb.un.varCfgPort.gbg) | |
3097 | phba->sli3_options |= LPFC_SLI3_BG_ENABLED; | |
3098 | else | |
3099 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
3100 | "0443 Adapter did not grant " | |
3101 | "BlockGuard\n"); | |
3102 | } | |
34b02dcd | 3103 | } else { |
8f34f4ce | 3104 | phba->hbq_get = NULL; |
34b02dcd JS |
3105 | phba->port_gp = phba->mbox->us.s2.port; |
3106 | phba->inb_ha_copy = NULL; | |
3107 | phba->inb_counter = NULL; | |
d7c255b2 | 3108 | phba->max_vpi = 0; |
ed957684 | 3109 | } |
92d7f7b0 | 3110 | do_prep_failed: |
ed957684 JS |
3111 | mempool_free(pmb, phba->mbox_mem_pool); |
3112 | return rc; | |
3113 | } | |
3114 | ||
e59058c4 JS |
3115 | |
3116 | /** | |
3117 | * lpfc_sli_hba_setup: SLI intialization function. | |
3118 | * @phba: Pointer to HBA context object. | |
3119 | * | |
3120 | * This function is the main SLI intialization function. This function | |
3121 | * is called by the HBA intialization code, HBA reset code and HBA | |
3122 | * error attention handler code. Caller is not required to hold any | |
3123 | * locks. This function issues config_port mailbox command to configure | |
3124 | * the SLI, setup iocb rings and HBQ rings. In the end the function | |
3125 | * calls the config_port_post function to issue init_link mailbox | |
3126 | * command and to start the discovery. The function will return zero | |
3127 | * if successful, else it will return negative error code. | |
3128 | **/ | |
ed957684 JS |
3129 | int |
3130 | lpfc_sli_hba_setup(struct lpfc_hba *phba) | |
3131 | { | |
3132 | uint32_t rc; | |
92d7f7b0 | 3133 | int mode = 3; |
ed957684 JS |
3134 | |
3135 | switch (lpfc_sli_mode) { | |
3136 | case 2: | |
78b2d852 | 3137 | if (phba->cfg_enable_npiv) { |
92d7f7b0 | 3138 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 | 3139 | "1824 NPIV enabled: Override lpfc_sli_mode " |
92d7f7b0 | 3140 | "parameter (%d) to auto (0).\n", |
e8b62011 | 3141 | lpfc_sli_mode); |
92d7f7b0 JS |
3142 | break; |
3143 | } | |
ed957684 JS |
3144 | mode = 2; |
3145 | break; | |
3146 | case 0: | |
3147 | case 3: | |
3148 | break; | |
3149 | default: | |
92d7f7b0 | 3150 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 JS |
3151 | "1819 Unrecognized lpfc_sli_mode " |
3152 | "parameter: %d.\n", lpfc_sli_mode); | |
ed957684 JS |
3153 | |
3154 | break; | |
3155 | } | |
3156 | ||
9399627f JS |
3157 | rc = lpfc_sli_config_port(phba, mode); |
3158 | ||
ed957684 | 3159 | if (rc && lpfc_sli_mode == 3) |
92d7f7b0 | 3160 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 JS |
3161 | "1820 Unable to select SLI-3. " |
3162 | "Not supported by adapter.\n"); | |
ed957684 | 3163 | if (rc && mode != 2) |
9399627f | 3164 | rc = lpfc_sli_config_port(phba, 2); |
ed957684 | 3165 | if (rc) |
dea3101e | 3166 | goto lpfc_sli_hba_setup_error; |
3167 | ||
ed957684 JS |
3168 | if (phba->sli_rev == 3) { |
3169 | phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE; | |
3170 | phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE; | |
ed957684 JS |
3171 | } else { |
3172 | phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE; | |
3173 | phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE; | |
92d7f7b0 | 3174 | phba->sli3_options = 0; |
ed957684 JS |
3175 | } |
3176 | ||
3177 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
e8b62011 JS |
3178 | "0444 Firmware in SLI %x mode. Max_vpi %d\n", |
3179 | phba->sli_rev, phba->max_vpi); | |
ed957684 | 3180 | rc = lpfc_sli_ring_map(phba); |
dea3101e | 3181 | |
3182 | if (rc) | |
3183 | goto lpfc_sli_hba_setup_error; | |
3184 | ||
9399627f | 3185 | /* Init HBQs */ |
ed957684 JS |
3186 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
3187 | rc = lpfc_sli_hbq_setup(phba); | |
3188 | if (rc) | |
3189 | goto lpfc_sli_hba_setup_error; | |
3190 | } | |
3191 | ||
dea3101e | 3192 | phba->sli.sli_flag |= LPFC_PROCESS_LA; |
3193 | ||
3194 | rc = lpfc_config_port_post(phba); | |
3195 | if (rc) | |
3196 | goto lpfc_sli_hba_setup_error; | |
3197 | ||
ed957684 JS |
3198 | return rc; |
3199 | ||
92d7f7b0 | 3200 | lpfc_sli_hba_setup_error: |
2e0fef85 | 3201 | phba->link_state = LPFC_HBA_ERROR; |
ed957684 | 3202 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
e8b62011 | 3203 | "0445 Firmware initialization failed\n"); |
dea3101e | 3204 | return rc; |
3205 | } | |
3206 | ||
e59058c4 JS |
3207 | |
3208 | /** | |
3209 | * lpfc_mbox_timeout: Timeout call back function for mbox timer. | |
3210 | * @ptr: context object - pointer to hba structure. | |
dea3101e | 3211 | * |
e59058c4 JS |
3212 | * This is the callback function for mailbox timer. The mailbox |
3213 | * timer is armed when a new mailbox command is issued and the timer | |
3214 | * is deleted when the mailbox complete. The function is called by | |
3215 | * the kernel timer code when a mailbox does not complete within | |
3216 | * expected time. This function wakes up the worker thread to | |
3217 | * process the mailbox timeout and returns. All the processing is | |
3218 | * done by the worker thread function lpfc_mbox_timeout_handler. | |
3219 | **/ | |
dea3101e | 3220 | void |
3221 | lpfc_mbox_timeout(unsigned long ptr) | |
3222 | { | |
92d7f7b0 | 3223 | struct lpfc_hba *phba = (struct lpfc_hba *) ptr; |
dea3101e | 3224 | unsigned long iflag; |
2e0fef85 | 3225 | uint32_t tmo_posted; |
dea3101e | 3226 | |
2e0fef85 | 3227 | spin_lock_irqsave(&phba->pport->work_port_lock, iflag); |
92d7f7b0 | 3228 | tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO; |
2e0fef85 JS |
3229 | if (!tmo_posted) |
3230 | phba->pport->work_port_events |= WORKER_MBOX_TMO; | |
3231 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); | |
3232 | ||
5e9d9b82 JS |
3233 | if (!tmo_posted) |
3234 | lpfc_worker_wake_up(phba); | |
3235 | return; | |
dea3101e | 3236 | } |
3237 | ||
e59058c4 JS |
3238 | |
3239 | /** | |
3240 | * lpfc_mbox_timeout_handler: Worker thread function to handle mailbox timeout. | |
3241 | * @phba: Pointer to HBA context object. | |
3242 | * | |
3243 | * This function is called from worker thread when a mailbox command times out. | |
3244 | * The caller is not required to hold any locks. This function will reset the | |
3245 | * HBA and recover all the pending commands. | |
3246 | **/ | |
dea3101e | 3247 | void |
3248 | lpfc_mbox_timeout_handler(struct lpfc_hba *phba) | |
3249 | { | |
2e0fef85 JS |
3250 | LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active; |
3251 | MAILBOX_t *mb = &pmbox->mb; | |
1dcb58e5 JS |
3252 | struct lpfc_sli *psli = &phba->sli; |
3253 | struct lpfc_sli_ring *pring; | |
dea3101e | 3254 | |
dea3101e | 3255 | /* Mbox cmd <mbxCommand> timeout */ |
ed957684 | 3256 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
e8b62011 | 3257 | "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n", |
92d7f7b0 JS |
3258 | mb->mbxCommand, |
3259 | phba->pport->port_state, | |
3260 | phba->sli.sli_flag, | |
3261 | phba->sli.mbox_active); | |
dea3101e | 3262 | |
1dcb58e5 JS |
3263 | /* Setting state unknown so lpfc_sli_abort_iocb_ring |
3264 | * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing | |
3265 | * it to fail all oustanding SCSI IO. | |
3266 | */ | |
2e0fef85 JS |
3267 | spin_lock_irq(&phba->pport->work_port_lock); |
3268 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; | |
3269 | spin_unlock_irq(&phba->pport->work_port_lock); | |
3270 | spin_lock_irq(&phba->hbalock); | |
3271 | phba->link_state = LPFC_LINK_UNKNOWN; | |
1dcb58e5 | 3272 | psli->sli_flag &= ~LPFC_SLI2_ACTIVE; |
2e0fef85 | 3273 | spin_unlock_irq(&phba->hbalock); |
1dcb58e5 JS |
3274 | |
3275 | pring = &psli->ring[psli->fcp_ring]; | |
3276 | lpfc_sli_abort_iocb_ring(phba, pring); | |
3277 | ||
3278 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
76bb24ef | 3279 | "0345 Resetting board due to mailbox timeout\n"); |
1dcb58e5 JS |
3280 | /* |
3281 | * lpfc_offline calls lpfc_sli_hba_down which will clean up | |
3282 | * on oustanding mailbox commands. | |
3283 | */ | |
13815c83 JS |
3284 | /* If resets are disabled then set error state and return. */ |
3285 | if (!phba->cfg_enable_hba_reset) { | |
3286 | phba->link_state = LPFC_HBA_ERROR; | |
3287 | return; | |
3288 | } | |
1dcb58e5 JS |
3289 | lpfc_offline_prep(phba); |
3290 | lpfc_offline(phba); | |
3291 | lpfc_sli_brdrestart(phba); | |
58da1ffb | 3292 | lpfc_online(phba); |
1dcb58e5 | 3293 | lpfc_unblock_mgmt_io(phba); |
dea3101e | 3294 | return; |
3295 | } | |
3296 | ||
e59058c4 JS |
3297 | /** |
3298 | * lpfc_sli_issue_mbox: Issue a mailbox command to firmware. | |
3299 | * @phba: Pointer to HBA context object. | |
3300 | * @pmbox: Pointer to mailbox object. | |
3301 | * @flag: Flag indicating how the mailbox need to be processed. | |
3302 | * | |
3303 | * This function is called by discovery code and HBA management code | |
3304 | * to submit a mailbox command to firmware. This function gets the | |
3305 | * hbalock to protect the data structures. | |
3306 | * The mailbox command can be submitted in polling mode, in which case | |
3307 | * this function will wait in a polling loop for the completion of the | |
3308 | * mailbox. | |
3309 | * If the mailbox is submitted in no_wait mode (not polling) the | |
3310 | * function will submit the command and returns immediately without waiting | |
3311 | * for the mailbox completion. The no_wait is supported only when HBA | |
3312 | * is in SLI2/SLI3 mode - interrupts are enabled. | |
3313 | * The SLI interface allows only one mailbox pending at a time. If the | |
3314 | * mailbox is issued in polling mode and there is already a mailbox | |
3315 | * pending, then the function will return an error. If the mailbox is issued | |
3316 | * in NO_WAIT mode and there is a mailbox pending already, the function | |
3317 | * will return MBX_BUSY after queuing the mailbox into mailbox queue. | |
3318 | * The sli layer owns the mailbox object until the completion of mailbox | |
3319 | * command if this function return MBX_BUSY or MBX_SUCCESS. For all other | |
3320 | * return codes the caller owns the mailbox command after the return of | |
3321 | * the function. | |
3322 | **/ | |
dea3101e | 3323 | int |
2e0fef85 | 3324 | lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag) |
dea3101e | 3325 | { |
dea3101e | 3326 | MAILBOX_t *mb; |
2e0fef85 | 3327 | struct lpfc_sli *psli = &phba->sli; |
dea3101e | 3328 | uint32_t status, evtctr; |
3329 | uint32_t ha_copy; | |
3330 | int i; | |
09372820 | 3331 | unsigned long timeout; |
dea3101e | 3332 | unsigned long drvr_flag = 0; |
34b02dcd | 3333 | uint32_t word0, ldata; |
dea3101e | 3334 | void __iomem *to_slim; |
58da1ffb JS |
3335 | int processing_queue = 0; |
3336 | ||
3337 | spin_lock_irqsave(&phba->hbalock, drvr_flag); | |
3338 | if (!pmbox) { | |
3339 | /* processing mbox queue from intr_handler */ | |
3340 | processing_queue = 1; | |
3341 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
3342 | pmbox = lpfc_mbox_get(phba); | |
3343 | if (!pmbox) { | |
3344 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
3345 | return MBX_SUCCESS; | |
3346 | } | |
3347 | } | |
dea3101e | 3348 | |
ed957684 | 3349 | if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl && |
92d7f7b0 | 3350 | pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) { |
ed957684 | 3351 | if(!pmbox->vport) { |
58da1ffb | 3352 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
ed957684 | 3353 | lpfc_printf_log(phba, KERN_ERR, |
92d7f7b0 | 3354 | LOG_MBOX | LOG_VPORT, |
e8b62011 | 3355 | "1806 Mbox x%x failed. No vport\n", |
ed957684 JS |
3356 | pmbox->mb.mbxCommand); |
3357 | dump_stack(); | |
58da1ffb | 3358 | goto out_not_finished; |
ed957684 JS |
3359 | } |
3360 | } | |
3361 | ||
8d63f375 | 3362 | /* If the PCI channel is in offline state, do not post mbox. */ |
58da1ffb JS |
3363 | if (unlikely(pci_channel_offline(phba->pcidev))) { |
3364 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
3365 | goto out_not_finished; | |
3366 | } | |
8d63f375 | 3367 | |
dea3101e | 3368 | psli = &phba->sli; |
92d7f7b0 | 3369 | |
dea3101e | 3370 | mb = &pmbox->mb; |
3371 | status = MBX_SUCCESS; | |
3372 | ||
2e0fef85 JS |
3373 | if (phba->link_state == LPFC_HBA_ERROR) { |
3374 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
41415862 JW |
3375 | |
3376 | /* Mbox command <mbxCommand> cannot issue */ | |
7f5f3d0d | 3377 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); |
58da1ffb | 3378 | goto out_not_finished; |
41415862 JW |
3379 | } |
3380 | ||
9290831f JS |
3381 | if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT && |
3382 | !(readl(phba->HCregaddr) & HC_MBINT_ENA)) { | |
2e0fef85 | 3383 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
7f5f3d0d | 3384 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); |
58da1ffb | 3385 | goto out_not_finished; |
9290831f JS |
3386 | } |
3387 | ||
dea3101e | 3388 | if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { |
3389 | /* Polling for a mbox command when another one is already active | |
3390 | * is not allowed in SLI. Also, the driver must have established | |
3391 | * SLI2 mode to queue and process multiple mbox commands. | |
3392 | */ | |
3393 | ||
3394 | if (flag & MBX_POLL) { | |
2e0fef85 | 3395 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 3396 | |
3397 | /* Mbox command <mbxCommand> cannot issue */ | |
92d7f7b0 | 3398 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); |
58da1ffb | 3399 | goto out_not_finished; |
dea3101e | 3400 | } |
3401 | ||
3402 | if (!(psli->sli_flag & LPFC_SLI2_ACTIVE)) { | |
2e0fef85 | 3403 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 3404 | /* Mbox command <mbxCommand> cannot issue */ |
92d7f7b0 | 3405 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); |
58da1ffb | 3406 | goto out_not_finished; |
dea3101e | 3407 | } |
3408 | ||
dea3101e | 3409 | /* Another mailbox command is still being processed, queue this |
3410 | * command to be processed later. | |
3411 | */ | |
3412 | lpfc_mbox_put(phba, pmbox); | |
3413 | ||
3414 | /* Mbox cmd issue - BUSY */ | |
ed957684 | 3415 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
e8b62011 | 3416 | "(%d):0308 Mbox cmd issue - BUSY Data: " |
92d7f7b0 | 3417 | "x%x x%x x%x x%x\n", |
92d7f7b0 JS |
3418 | pmbox->vport ? pmbox->vport->vpi : 0xffffff, |
3419 | mb->mbxCommand, phba->pport->port_state, | |
3420 | psli->sli_flag, flag); | |
dea3101e | 3421 | |
3422 | psli->slistat.mbox_busy++; | |
2e0fef85 | 3423 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 3424 | |
858c9f6c JS |
3425 | if (pmbox->vport) { |
3426 | lpfc_debugfs_disc_trc(pmbox->vport, | |
3427 | LPFC_DISC_TRC_MBOX_VPORT, | |
3428 | "MBOX Bsy vport: cmd:x%x mb:x%x x%x", | |
3429 | (uint32_t)mb->mbxCommand, | |
3430 | mb->un.varWords[0], mb->un.varWords[1]); | |
3431 | } | |
3432 | else { | |
3433 | lpfc_debugfs_disc_trc(phba->pport, | |
3434 | LPFC_DISC_TRC_MBOX, | |
3435 | "MBOX Bsy: cmd:x%x mb:x%x x%x", | |
3436 | (uint32_t)mb->mbxCommand, | |
3437 | mb->un.varWords[0], mb->un.varWords[1]); | |
3438 | } | |
3439 | ||
2e0fef85 | 3440 | return MBX_BUSY; |
dea3101e | 3441 | } |
3442 | ||
dea3101e | 3443 | psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; |
3444 | ||
3445 | /* If we are not polling, we MUST be in SLI2 mode */ | |
3446 | if (flag != MBX_POLL) { | |
41415862 JW |
3447 | if (!(psli->sli_flag & LPFC_SLI2_ACTIVE) && |
3448 | (mb->mbxCommand != MBX_KILL_BOARD)) { | |
dea3101e | 3449 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3450 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 3451 | /* Mbox command <mbxCommand> cannot issue */ |
92d7f7b0 | 3452 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); |
58da1ffb | 3453 | goto out_not_finished; |
dea3101e | 3454 | } |
3455 | /* timeout active mbox command */ | |
a309a6b6 JS |
3456 | mod_timer(&psli->mbox_tmo, (jiffies + |
3457 | (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand)))); | |
dea3101e | 3458 | } |
3459 | ||
3460 | /* Mailbox cmd <cmd> issue */ | |
ed957684 | 3461 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
e8b62011 | 3462 | "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x " |
92d7f7b0 | 3463 | "x%x\n", |
e8b62011 | 3464 | pmbox->vport ? pmbox->vport->vpi : 0, |
92d7f7b0 JS |
3465 | mb->mbxCommand, phba->pport->port_state, |
3466 | psli->sli_flag, flag); | |
dea3101e | 3467 | |
858c9f6c JS |
3468 | if (mb->mbxCommand != MBX_HEARTBEAT) { |
3469 | if (pmbox->vport) { | |
3470 | lpfc_debugfs_disc_trc(pmbox->vport, | |
3471 | LPFC_DISC_TRC_MBOX_VPORT, | |
3472 | "MBOX Send vport: cmd:x%x mb:x%x x%x", | |
3473 | (uint32_t)mb->mbxCommand, | |
3474 | mb->un.varWords[0], mb->un.varWords[1]); | |
3475 | } | |
3476 | else { | |
3477 | lpfc_debugfs_disc_trc(phba->pport, | |
3478 | LPFC_DISC_TRC_MBOX, | |
3479 | "MBOX Send: cmd:x%x mb:x%x x%x", | |
3480 | (uint32_t)mb->mbxCommand, | |
3481 | mb->un.varWords[0], mb->un.varWords[1]); | |
3482 | } | |
3483 | } | |
3484 | ||
dea3101e | 3485 | psli->slistat.mbox_cmd++; |
3486 | evtctr = psli->slistat.mbox_event; | |
3487 | ||
3488 | /* next set own bit for the adapter and copy over command word */ | |
3489 | mb->mbxOwner = OWN_CHIP; | |
3490 | ||
3491 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
dea3101e | 3492 | /* First copy command data to host SLIM area */ |
34b02dcd | 3493 | lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE); |
dea3101e | 3494 | } else { |
9290831f | 3495 | if (mb->mbxCommand == MBX_CONFIG_PORT) { |
dea3101e | 3496 | /* copy command data into host mbox for cmpl */ |
34b02dcd | 3497 | lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE); |
dea3101e | 3498 | } |
3499 | ||
3500 | /* First copy mbox command data to HBA SLIM, skip past first | |
3501 | word */ | |
3502 | to_slim = phba->MBslimaddr + sizeof (uint32_t); | |
3503 | lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0], | |
3504 | MAILBOX_CMD_SIZE - sizeof (uint32_t)); | |
3505 | ||
3506 | /* Next copy over first word, with mbxOwner set */ | |
34b02dcd | 3507 | ldata = *((uint32_t *)mb); |
dea3101e | 3508 | to_slim = phba->MBslimaddr; |
3509 | writel(ldata, to_slim); | |
3510 | readl(to_slim); /* flush */ | |
3511 | ||
3512 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
3513 | /* switch over to host mailbox */ | |
3514 | psli->sli_flag |= LPFC_SLI2_ACTIVE; | |
3515 | } | |
3516 | } | |
3517 | ||
3518 | wmb(); | |
dea3101e | 3519 | |
3520 | switch (flag) { | |
3521 | case MBX_NOWAIT: | |
09372820 | 3522 | /* Set up reference to mailbox command */ |
dea3101e | 3523 | psli->mbox_active = pmbox; |
09372820 JS |
3524 | /* Interrupt board to do it */ |
3525 | writel(CA_MBATT, phba->CAregaddr); | |
3526 | readl(phba->CAregaddr); /* flush */ | |
3527 | /* Don't wait for it to finish, just return */ | |
dea3101e | 3528 | break; |
3529 | ||
3530 | case MBX_POLL: | |
09372820 | 3531 | /* Set up null reference to mailbox command */ |
dea3101e | 3532 | psli->mbox_active = NULL; |
09372820 JS |
3533 | /* Interrupt board to do it */ |
3534 | writel(CA_MBATT, phba->CAregaddr); | |
3535 | readl(phba->CAregaddr); /* flush */ | |
3536 | ||
dea3101e | 3537 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { |
3538 | /* First read mbox status word */ | |
34b02dcd | 3539 | word0 = *((uint32_t *)phba->mbox); |
dea3101e | 3540 | word0 = le32_to_cpu(word0); |
3541 | } else { | |
3542 | /* First read mbox status word */ | |
3543 | word0 = readl(phba->MBslimaddr); | |
3544 | } | |
3545 | ||
3546 | /* Read the HBA Host Attention Register */ | |
3547 | ha_copy = readl(phba->HAregaddr); | |
09372820 JS |
3548 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, |
3549 | mb->mbxCommand) * | |
3550 | 1000) + jiffies; | |
3551 | i = 0; | |
dea3101e | 3552 | /* Wait for command to complete */ |
41415862 JW |
3553 | while (((word0 & OWN_CHIP) == OWN_CHIP) || |
3554 | (!(ha_copy & HA_MBATT) && | |
2e0fef85 | 3555 | (phba->link_state > LPFC_WARM_START))) { |
09372820 | 3556 | if (time_after(jiffies, timeout)) { |
dea3101e | 3557 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3558 | spin_unlock_irqrestore(&phba->hbalock, |
dea3101e | 3559 | drvr_flag); |
58da1ffb | 3560 | goto out_not_finished; |
dea3101e | 3561 | } |
3562 | ||
3563 | /* Check if we took a mbox interrupt while we were | |
3564 | polling */ | |
3565 | if (((word0 & OWN_CHIP) != OWN_CHIP) | |
3566 | && (evtctr != psli->slistat.mbox_event)) | |
3567 | break; | |
3568 | ||
09372820 JS |
3569 | if (i++ > 10) { |
3570 | spin_unlock_irqrestore(&phba->hbalock, | |
3571 | drvr_flag); | |
3572 | msleep(1); | |
3573 | spin_lock_irqsave(&phba->hbalock, drvr_flag); | |
3574 | } | |
dea3101e | 3575 | |
3576 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
3577 | /* First copy command data */ | |
34b02dcd | 3578 | word0 = *((uint32_t *)phba->mbox); |
dea3101e | 3579 | word0 = le32_to_cpu(word0); |
3580 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
3581 | MAILBOX_t *slimmb; | |
34b02dcd | 3582 | uint32_t slimword0; |
dea3101e | 3583 | /* Check real SLIM for any errors */ |
3584 | slimword0 = readl(phba->MBslimaddr); | |
3585 | slimmb = (MAILBOX_t *) & slimword0; | |
3586 | if (((slimword0 & OWN_CHIP) != OWN_CHIP) | |
3587 | && slimmb->mbxStatus) { | |
3588 | psli->sli_flag &= | |
3589 | ~LPFC_SLI2_ACTIVE; | |
3590 | word0 = slimword0; | |
3591 | } | |
3592 | } | |
3593 | } else { | |
3594 | /* First copy command data */ | |
3595 | word0 = readl(phba->MBslimaddr); | |
3596 | } | |
3597 | /* Read the HBA Host Attention Register */ | |
3598 | ha_copy = readl(phba->HAregaddr); | |
3599 | } | |
3600 | ||
3601 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
dea3101e | 3602 | /* copy results back to user */ |
34b02dcd | 3603 | lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE); |
dea3101e | 3604 | } else { |
3605 | /* First copy command data */ | |
3606 | lpfc_memcpy_from_slim(mb, phba->MBslimaddr, | |
3607 | MAILBOX_CMD_SIZE); | |
3608 | if ((mb->mbxCommand == MBX_DUMP_MEMORY) && | |
3609 | pmbox->context2) { | |
92d7f7b0 | 3610 | lpfc_memcpy_from_slim((void *)pmbox->context2, |
dea3101e | 3611 | phba->MBslimaddr + DMP_RSP_OFFSET, |
3612 | mb->un.varDmp.word_cnt); | |
3613 | } | |
3614 | } | |
3615 | ||
3616 | writel(HA_MBATT, phba->HAregaddr); | |
3617 | readl(phba->HAregaddr); /* flush */ | |
3618 | ||
3619 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
3620 | status = mb->mbxStatus; | |
3621 | } | |
3622 | ||
2e0fef85 JS |
3623 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
3624 | return status; | |
58da1ffb JS |
3625 | |
3626 | out_not_finished: | |
3627 | if (processing_queue) { | |
3628 | pmbox->mb.mbxStatus = MBX_NOT_FINISHED; | |
3629 | lpfc_mbox_cmpl_put(phba, pmbox); | |
3630 | } | |
3631 | return MBX_NOT_FINISHED; | |
dea3101e | 3632 | } |
3633 | ||
e59058c4 JS |
3634 | /** |
3635 | * __lpfc_sli_ringtx_put: Add an iocb to the txq. | |
3636 | * @phba: Pointer to HBA context object. | |
3637 | * @pring: Pointer to driver SLI ring object. | |
3638 | * @piocb: Pointer to address of newly added command iocb. | |
3639 | * | |
3640 | * This function is called with hbalock held to add a command | |
3641 | * iocb to the txq when SLI layer cannot submit the command iocb | |
3642 | * to the ring. | |
3643 | **/ | |
858c9f6c | 3644 | static void |
92d7f7b0 | 3645 | __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
2e0fef85 | 3646 | struct lpfc_iocbq *piocb) |
dea3101e | 3647 | { |
3648 | /* Insert the caller's iocb in the txq tail for later processing. */ | |
3649 | list_add_tail(&piocb->list, &pring->txq); | |
3650 | pring->txq_cnt++; | |
dea3101e | 3651 | } |
3652 | ||
e59058c4 JS |
3653 | /** |
3654 | * lpfc_sli_next_iocb: Get the next iocb in the txq. | |
3655 | * @phba: Pointer to HBA context object. | |
3656 | * @pring: Pointer to driver SLI ring object. | |
3657 | * @piocb: Pointer to address of newly added command iocb. | |
3658 | * | |
3659 | * This function is called with hbalock held before a new | |
3660 | * iocb is submitted to the firmware. This function checks | |
3661 | * txq to flush the iocbs in txq to Firmware before | |
3662 | * submitting new iocbs to the Firmware. | |
3663 | * If there are iocbs in the txq which need to be submitted | |
3664 | * to firmware, lpfc_sli_next_iocb returns the first element | |
3665 | * of the txq after dequeuing it from txq. | |
3666 | * If there is no iocb in the txq then the function will return | |
3667 | * *piocb and *piocb is set to NULL. Caller needs to check | |
3668 | * *piocb to find if there are more commands in the txq. | |
3669 | **/ | |
dea3101e | 3670 | static struct lpfc_iocbq * |
3671 | lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2e0fef85 | 3672 | struct lpfc_iocbq **piocb) |
dea3101e | 3673 | { |
3674 | struct lpfc_iocbq * nextiocb; | |
3675 | ||
3676 | nextiocb = lpfc_sli_ringtx_get(phba, pring); | |
3677 | if (!nextiocb) { | |
3678 | nextiocb = *piocb; | |
3679 | *piocb = NULL; | |
3680 | } | |
3681 | ||
3682 | return nextiocb; | |
3683 | } | |
3684 | ||
e59058c4 JS |
3685 | /** |
3686 | * __lpfc_sli_issue_iocb: Lockless version of lpfc_sli_issue_iocb. | |
3687 | * @phba: Pointer to HBA context object. | |
3688 | * @pring: Pointer to driver SLI ring object. | |
3689 | * @piocb: Pointer to command iocb. | |
3690 | * @flag: Flag indicating if this command can be put into txq. | |
3691 | * | |
3692 | * __lpfc_sli_issue_iocb is used by other functions in the driver | |
3693 | * to issue an iocb command to the HBA. If the PCI slot is recovering | |
3694 | * from error state or if HBA is resetting or if LPFC_STOP_IOCB_EVENT | |
3695 | * flag is turned on, the function returns IOCB_ERROR. | |
3696 | * When the link is down, this function allows only iocbs for | |
3697 | * posting buffers. | |
3698 | * This function finds next available slot in the command ring and | |
3699 | * posts the command to the available slot and writes the port | |
3700 | * attention register to request HBA start processing new iocb. | |
3701 | * If there is no slot available in the ring and | |
3702 | * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the | |
3703 | * txq, otherwise the function returns IOCB_BUSY. | |
3704 | * | |
3705 | * This function is called with hbalock held. | |
3706 | * The function will return success after it successfully submit the | |
3707 | * iocb to firmware or after adding to the txq. | |
3708 | **/ | |
98c9ea5c | 3709 | static int |
92d7f7b0 | 3710 | __lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
dea3101e | 3711 | struct lpfc_iocbq *piocb, uint32_t flag) |
3712 | { | |
3713 | struct lpfc_iocbq *nextiocb; | |
3714 | IOCB_t *iocb; | |
3715 | ||
92d7f7b0 JS |
3716 | if (piocb->iocb_cmpl && (!piocb->vport) && |
3717 | (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) && | |
3718 | (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) { | |
3719 | lpfc_printf_log(phba, KERN_ERR, | |
3720 | LOG_SLI | LOG_VPORT, | |
e8b62011 | 3721 | "1807 IOCB x%x failed. No vport\n", |
92d7f7b0 JS |
3722 | piocb->iocb.ulpCommand); |
3723 | dump_stack(); | |
3724 | return IOCB_ERROR; | |
3725 | } | |
3726 | ||
3727 | ||
8d63f375 LV |
3728 | /* If the PCI channel is in offline state, do not post iocbs. */ |
3729 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
3730 | return IOCB_ERROR; | |
3731 | ||
dea3101e | 3732 | /* |
3733 | * We should never get an IOCB if we are in a < LINK_DOWN state | |
3734 | */ | |
2e0fef85 | 3735 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) |
dea3101e | 3736 | return IOCB_ERROR; |
3737 | ||
3738 | /* | |
3739 | * Check to see if we are blocking IOCB processing because of a | |
0b727fea | 3740 | * outstanding event. |
dea3101e | 3741 | */ |
0b727fea | 3742 | if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT)) |
dea3101e | 3743 | goto iocb_busy; |
3744 | ||
2e0fef85 | 3745 | if (unlikely(phba->link_state == LPFC_LINK_DOWN)) { |
dea3101e | 3746 | /* |
2680eeaa | 3747 | * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF |
dea3101e | 3748 | * can be issued if the link is not up. |
3749 | */ | |
3750 | switch (piocb->iocb.ulpCommand) { | |
84774a4d JS |
3751 | case CMD_GEN_REQUEST64_CR: |
3752 | case CMD_GEN_REQUEST64_CX: | |
3753 | if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) || | |
3754 | (piocb->iocb.un.genreq64.w5.hcsw.Rctl != | |
3755 | FC_FCP_CMND) || | |
3756 | (piocb->iocb.un.genreq64.w5.hcsw.Type != | |
3757 | MENLO_TRANSPORT_TYPE)) | |
3758 | ||
3759 | goto iocb_busy; | |
3760 | break; | |
dea3101e | 3761 | case CMD_QUE_RING_BUF_CN: |
3762 | case CMD_QUE_RING_BUF64_CN: | |
dea3101e | 3763 | /* |
3764 | * For IOCBs, like QUE_RING_BUF, that have no rsp ring | |
3765 | * completion, iocb_cmpl MUST be 0. | |
3766 | */ | |
3767 | if (piocb->iocb_cmpl) | |
3768 | piocb->iocb_cmpl = NULL; | |
3769 | /*FALLTHROUGH*/ | |
3770 | case CMD_CREATE_XRI_CR: | |
2680eeaa JS |
3771 | case CMD_CLOSE_XRI_CN: |
3772 | case CMD_CLOSE_XRI_CX: | |
dea3101e | 3773 | break; |
3774 | default: | |
3775 | goto iocb_busy; | |
3776 | } | |
3777 | ||
3778 | /* | |
3779 | * For FCP commands, we must be in a state where we can process link | |
3780 | * attention events. | |
3781 | */ | |
3782 | } else if (unlikely(pring->ringno == phba->sli.fcp_ring && | |
92d7f7b0 | 3783 | !(phba->sli.sli_flag & LPFC_PROCESS_LA))) { |
dea3101e | 3784 | goto iocb_busy; |
92d7f7b0 | 3785 | } |
dea3101e | 3786 | |
dea3101e | 3787 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && |
3788 | (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb))) | |
3789 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
3790 | ||
3791 | if (iocb) | |
3792 | lpfc_sli_update_ring(phba, pring); | |
3793 | else | |
3794 | lpfc_sli_update_full_ring(phba, pring); | |
3795 | ||
3796 | if (!piocb) | |
3797 | return IOCB_SUCCESS; | |
3798 | ||
3799 | goto out_busy; | |
3800 | ||
3801 | iocb_busy: | |
3802 | pring->stats.iocb_cmd_delay++; | |
3803 | ||
3804 | out_busy: | |
3805 | ||
3806 | if (!(flag & SLI_IOCB_RET_IOCB)) { | |
92d7f7b0 | 3807 | __lpfc_sli_ringtx_put(phba, pring, piocb); |
dea3101e | 3808 | return IOCB_SUCCESS; |
3809 | } | |
3810 | ||
3811 | return IOCB_BUSY; | |
3812 | } | |
3813 | ||
92d7f7b0 | 3814 | |
e59058c4 JS |
3815 | /** |
3816 | * lpfc_sli_issue_iocb: Wrapper function for __lpfc_sli_issue_iocb. | |
3817 | * @phba: Pointer to HBA context object. | |
3818 | * @pring: Pointer to driver SLI ring object. | |
3819 | * @piocb: Pointer to command iocb. | |
3820 | * @flag: Flag indicating if this command can be put into txq. | |
3821 | * | |
3822 | * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb | |
3823 | * function. This function gets the hbalock and calls | |
3824 | * __lpfc_sli_issue_iocb function and will return the error returned | |
3825 | * by __lpfc_sli_issue_iocb function. This wrapper is used by | |
3826 | * functions which do not hold hbalock. | |
3827 | **/ | |
92d7f7b0 JS |
3828 | int |
3829 | lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
3830 | struct lpfc_iocbq *piocb, uint32_t flag) | |
3831 | { | |
3832 | unsigned long iflags; | |
3833 | int rc; | |
3834 | ||
3835 | spin_lock_irqsave(&phba->hbalock, iflags); | |
3836 | rc = __lpfc_sli_issue_iocb(phba, pring, piocb, flag); | |
3837 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
3838 | ||
3839 | return rc; | |
3840 | } | |
3841 | ||
e59058c4 JS |
3842 | /** |
3843 | * lpfc_extra_ring_setup: Extra ring setup function. | |
3844 | * @phba: Pointer to HBA context object. | |
3845 | * | |
3846 | * This function is called while driver attaches with the | |
3847 | * HBA to setup the extra ring. The extra ring is used | |
3848 | * only when driver needs to support target mode functionality | |
3849 | * or IP over FC functionalities. | |
3850 | * | |
3851 | * This function is called with no lock held. | |
3852 | **/ | |
cf5bf97e JW |
3853 | static int |
3854 | lpfc_extra_ring_setup( struct lpfc_hba *phba) | |
3855 | { | |
3856 | struct lpfc_sli *psli; | |
3857 | struct lpfc_sli_ring *pring; | |
3858 | ||
3859 | psli = &phba->sli; | |
3860 | ||
3861 | /* Adjust cmd/rsp ring iocb entries more evenly */ | |
a4bc3379 JS |
3862 | |
3863 | /* Take some away from the FCP ring */ | |
cf5bf97e JW |
3864 | pring = &psli->ring[psli->fcp_ring]; |
3865 | pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
3866 | pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
3867 | pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
3868 | pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
3869 | ||
a4bc3379 JS |
3870 | /* and give them to the extra ring */ |
3871 | pring = &psli->ring[psli->extra_ring]; | |
3872 | ||
cf5bf97e JW |
3873 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; |
3874 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
3875 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
3876 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
3877 | ||
3878 | /* Setup default profile for this ring */ | |
3879 | pring->iotag_max = 4096; | |
3880 | pring->num_mask = 1; | |
3881 | pring->prt[0].profile = 0; /* Mask 0 */ | |
a4bc3379 JS |
3882 | pring->prt[0].rctl = phba->cfg_multi_ring_rctl; |
3883 | pring->prt[0].type = phba->cfg_multi_ring_type; | |
cf5bf97e JW |
3884 | pring->prt[0].lpfc_sli_rcv_unsol_event = NULL; |
3885 | return 0; | |
3886 | } | |
3887 | ||
e59058c4 JS |
3888 | /** |
3889 | * lpfc_sli_async_event_handler: ASYNC iocb handler function. | |
3890 | * @phba: Pointer to HBA context object. | |
3891 | * @pring: Pointer to driver SLI ring object. | |
3892 | * @iocbq: Pointer to iocb object. | |
3893 | * | |
3894 | * This function is called by the slow ring event handler | |
3895 | * function when there is an ASYNC event iocb in the ring. | |
3896 | * This function is called with no lock held. | |
3897 | * Currently this function handles only temperature related | |
3898 | * ASYNC events. The function decodes the temperature sensor | |
3899 | * event message and posts events for the management applications. | |
3900 | **/ | |
98c9ea5c | 3901 | static void |
57127f15 JS |
3902 | lpfc_sli_async_event_handler(struct lpfc_hba * phba, |
3903 | struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq) | |
3904 | { | |
3905 | IOCB_t *icmd; | |
3906 | uint16_t evt_code; | |
3907 | uint16_t temp; | |
3908 | struct temp_event temp_event_data; | |
3909 | struct Scsi_Host *shost; | |
3910 | ||
3911 | icmd = &iocbq->iocb; | |
3912 | evt_code = icmd->un.asyncstat.evt_code; | |
3913 | temp = icmd->ulpContext; | |
3914 | ||
3915 | if ((evt_code != ASYNC_TEMP_WARN) && | |
3916 | (evt_code != ASYNC_TEMP_SAFE)) { | |
3917 | lpfc_printf_log(phba, | |
3918 | KERN_ERR, | |
3919 | LOG_SLI, | |
76bb24ef | 3920 | "0346 Ring %d handler: unexpected ASYNC_STATUS" |
57127f15 JS |
3921 | " evt_code 0x%x\n", |
3922 | pring->ringno, | |
3923 | icmd->un.asyncstat.evt_code); | |
3924 | return; | |
3925 | } | |
3926 | temp_event_data.data = (uint32_t)temp; | |
3927 | temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; | |
3928 | if (evt_code == ASYNC_TEMP_WARN) { | |
3929 | temp_event_data.event_code = LPFC_THRESHOLD_TEMP; | |
3930 | lpfc_printf_log(phba, | |
09372820 | 3931 | KERN_ERR, |
57127f15 | 3932 | LOG_TEMP, |
76bb24ef | 3933 | "0347 Adapter is very hot, please take " |
57127f15 JS |
3934 | "corrective action. temperature : %d Celsius\n", |
3935 | temp); | |
3936 | } | |
3937 | if (evt_code == ASYNC_TEMP_SAFE) { | |
3938 | temp_event_data.event_code = LPFC_NORMAL_TEMP; | |
3939 | lpfc_printf_log(phba, | |
09372820 | 3940 | KERN_ERR, |
57127f15 JS |
3941 | LOG_TEMP, |
3942 | "0340 Adapter temperature is OK now. " | |
3943 | "temperature : %d Celsius\n", | |
3944 | temp); | |
3945 | } | |
3946 | ||
3947 | /* Send temperature change event to applications */ | |
3948 | shost = lpfc_shost_from_vport(phba->pport); | |
3949 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
3950 | sizeof(temp_event_data), (char *) &temp_event_data, | |
ddcc50f0 | 3951 | LPFC_NL_VENDOR_ID); |
57127f15 JS |
3952 | |
3953 | } | |
3954 | ||
3955 | ||
e59058c4 JS |
3956 | /** |
3957 | * lpfc_sli_setup: SLI ring setup function. | |
3958 | * @phba: Pointer to HBA context object. | |
3959 | * | |
3960 | * lpfc_sli_setup sets up rings of the SLI interface with | |
3961 | * number of iocbs per ring and iotags. This function is | |
3962 | * called while driver attach to the HBA and before the | |
3963 | * interrupts are enabled. So there is no need for locking. | |
3964 | * | |
3965 | * This function always returns 0. | |
3966 | **/ | |
dea3101e | 3967 | int |
3968 | lpfc_sli_setup(struct lpfc_hba *phba) | |
3969 | { | |
ed957684 | 3970 | int i, totiocbsize = 0; |
dea3101e | 3971 | struct lpfc_sli *psli = &phba->sli; |
3972 | struct lpfc_sli_ring *pring; | |
3973 | ||
3974 | psli->num_rings = MAX_CONFIGURED_RINGS; | |
3975 | psli->sli_flag = 0; | |
3976 | psli->fcp_ring = LPFC_FCP_RING; | |
3977 | psli->next_ring = LPFC_FCP_NEXT_RING; | |
a4bc3379 | 3978 | psli->extra_ring = LPFC_EXTRA_RING; |
dea3101e | 3979 | |
604a3e30 JB |
3980 | psli->iocbq_lookup = NULL; |
3981 | psli->iocbq_lookup_len = 0; | |
3982 | psli->last_iotag = 0; | |
3983 | ||
dea3101e | 3984 | for (i = 0; i < psli->num_rings; i++) { |
3985 | pring = &psli->ring[i]; | |
3986 | switch (i) { | |
3987 | case LPFC_FCP_RING: /* ring 0 - FCP */ | |
3988 | /* numCiocb and numRiocb are used in config_port */ | |
3989 | pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES; | |
3990 | pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES; | |
3991 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
3992 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
3993 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
3994 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
ed957684 | 3995 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
3996 | SLI3_IOCB_CMD_SIZE : |
3997 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 3998 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
3999 | SLI3_IOCB_RSP_SIZE : |
4000 | SLI2_IOCB_RSP_SIZE; | |
dea3101e | 4001 | pring->iotag_ctr = 0; |
4002 | pring->iotag_max = | |
92d7f7b0 | 4003 | (phba->cfg_hba_queue_depth * 2); |
dea3101e | 4004 | pring->fast_iotag = pring->iotag_max; |
4005 | pring->num_mask = 0; | |
4006 | break; | |
a4bc3379 | 4007 | case LPFC_EXTRA_RING: /* ring 1 - EXTRA */ |
dea3101e | 4008 | /* numCiocb and numRiocb are used in config_port */ |
4009 | pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES; | |
4010 | pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES; | |
ed957684 | 4011 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
4012 | SLI3_IOCB_CMD_SIZE : |
4013 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 4014 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
4015 | SLI3_IOCB_RSP_SIZE : |
4016 | SLI2_IOCB_RSP_SIZE; | |
2e0fef85 | 4017 | pring->iotag_max = phba->cfg_hba_queue_depth; |
dea3101e | 4018 | pring->num_mask = 0; |
4019 | break; | |
4020 | case LPFC_ELS_RING: /* ring 2 - ELS / CT */ | |
4021 | /* numCiocb and numRiocb are used in config_port */ | |
4022 | pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES; | |
4023 | pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES; | |
ed957684 | 4024 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
4025 | SLI3_IOCB_CMD_SIZE : |
4026 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 4027 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
4028 | SLI3_IOCB_RSP_SIZE : |
4029 | SLI2_IOCB_RSP_SIZE; | |
dea3101e | 4030 | pring->fast_iotag = 0; |
4031 | pring->iotag_ctr = 0; | |
4032 | pring->iotag_max = 4096; | |
57127f15 JS |
4033 | pring->lpfc_sli_rcv_async_status = |
4034 | lpfc_sli_async_event_handler; | |
dea3101e | 4035 | pring->num_mask = 4; |
4036 | pring->prt[0].profile = 0; /* Mask 0 */ | |
4037 | pring->prt[0].rctl = FC_ELS_REQ; | |
4038 | pring->prt[0].type = FC_ELS_DATA; | |
4039 | pring->prt[0].lpfc_sli_rcv_unsol_event = | |
92d7f7b0 | 4040 | lpfc_els_unsol_event; |
dea3101e | 4041 | pring->prt[1].profile = 0; /* Mask 1 */ |
4042 | pring->prt[1].rctl = FC_ELS_RSP; | |
4043 | pring->prt[1].type = FC_ELS_DATA; | |
4044 | pring->prt[1].lpfc_sli_rcv_unsol_event = | |
92d7f7b0 | 4045 | lpfc_els_unsol_event; |
dea3101e | 4046 | pring->prt[2].profile = 0; /* Mask 2 */ |
4047 | /* NameServer Inquiry */ | |
4048 | pring->prt[2].rctl = FC_UNSOL_CTL; | |
4049 | /* NameServer */ | |
4050 | pring->prt[2].type = FC_COMMON_TRANSPORT_ULP; | |
4051 | pring->prt[2].lpfc_sli_rcv_unsol_event = | |
92d7f7b0 | 4052 | lpfc_ct_unsol_event; |
dea3101e | 4053 | pring->prt[3].profile = 0; /* Mask 3 */ |
4054 | /* NameServer response */ | |
4055 | pring->prt[3].rctl = FC_SOL_CTL; | |
4056 | /* NameServer */ | |
4057 | pring->prt[3].type = FC_COMMON_TRANSPORT_ULP; | |
4058 | pring->prt[3].lpfc_sli_rcv_unsol_event = | |
92d7f7b0 | 4059 | lpfc_ct_unsol_event; |
dea3101e | 4060 | break; |
4061 | } | |
ed957684 | 4062 | totiocbsize += (pring->numCiocb * pring->sizeCiocb) + |
92d7f7b0 | 4063 | (pring->numRiocb * pring->sizeRiocb); |
dea3101e | 4064 | } |
ed957684 | 4065 | if (totiocbsize > MAX_SLIM_IOCB_SIZE) { |
dea3101e | 4066 | /* Too many cmd / rsp ring entries in SLI2 SLIM */ |
e8b62011 JS |
4067 | printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in " |
4068 | "SLI2 SLIM Data: x%x x%lx\n", | |
4069 | phba->brd_no, totiocbsize, | |
4070 | (unsigned long) MAX_SLIM_IOCB_SIZE); | |
dea3101e | 4071 | } |
cf5bf97e JW |
4072 | if (phba->cfg_multi_ring_support == 2) |
4073 | lpfc_extra_ring_setup(phba); | |
dea3101e | 4074 | |
4075 | return 0; | |
4076 | } | |
4077 | ||
e59058c4 JS |
4078 | /** |
4079 | * lpfc_sli_queue_setup: Queue initialization function. | |
4080 | * @phba: Pointer to HBA context object. | |
4081 | * | |
4082 | * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each | |
4083 | * ring. This function also initializes ring indices of each ring. | |
4084 | * This function is called during the initialization of the SLI | |
4085 | * interface of an HBA. | |
4086 | * This function is called with no lock held and always returns | |
4087 | * 1. | |
4088 | **/ | |
dea3101e | 4089 | int |
2e0fef85 | 4090 | lpfc_sli_queue_setup(struct lpfc_hba *phba) |
dea3101e | 4091 | { |
4092 | struct lpfc_sli *psli; | |
4093 | struct lpfc_sli_ring *pring; | |
604a3e30 | 4094 | int i; |
dea3101e | 4095 | |
4096 | psli = &phba->sli; | |
2e0fef85 | 4097 | spin_lock_irq(&phba->hbalock); |
dea3101e | 4098 | INIT_LIST_HEAD(&psli->mboxq); |
92d7f7b0 | 4099 | INIT_LIST_HEAD(&psli->mboxq_cmpl); |
dea3101e | 4100 | /* Initialize list headers for txq and txcmplq as double linked lists */ |
4101 | for (i = 0; i < psli->num_rings; i++) { | |
4102 | pring = &psli->ring[i]; | |
4103 | pring->ringno = i; | |
4104 | pring->next_cmdidx = 0; | |
4105 | pring->local_getidx = 0; | |
4106 | pring->cmdidx = 0; | |
4107 | INIT_LIST_HEAD(&pring->txq); | |
4108 | INIT_LIST_HEAD(&pring->txcmplq); | |
4109 | INIT_LIST_HEAD(&pring->iocb_continueq); | |
9c2face6 | 4110 | INIT_LIST_HEAD(&pring->iocb_continue_saveq); |
dea3101e | 4111 | INIT_LIST_HEAD(&pring->postbufq); |
dea3101e | 4112 | } |
2e0fef85 JS |
4113 | spin_unlock_irq(&phba->hbalock); |
4114 | return 1; | |
dea3101e | 4115 | } |
4116 | ||
e59058c4 JS |
4117 | /** |
4118 | * lpfc_sli_host_down: Vport cleanup function. | |
4119 | * @vport: Pointer to virtual port object. | |
4120 | * | |
4121 | * lpfc_sli_host_down is called to clean up the resources | |
4122 | * associated with a vport before destroying virtual | |
4123 | * port data structures. | |
4124 | * This function does following operations: | |
4125 | * - Free discovery resources associated with this virtual | |
4126 | * port. | |
4127 | * - Free iocbs associated with this virtual port in | |
4128 | * the txq. | |
4129 | * - Send abort for all iocb commands associated with this | |
4130 | * vport in txcmplq. | |
4131 | * | |
4132 | * This function is called with no lock held and always returns 1. | |
4133 | **/ | |
92d7f7b0 JS |
4134 | int |
4135 | lpfc_sli_host_down(struct lpfc_vport *vport) | |
4136 | { | |
858c9f6c | 4137 | LIST_HEAD(completions); |
92d7f7b0 JS |
4138 | struct lpfc_hba *phba = vport->phba; |
4139 | struct lpfc_sli *psli = &phba->sli; | |
4140 | struct lpfc_sli_ring *pring; | |
4141 | struct lpfc_iocbq *iocb, *next_iocb; | |
92d7f7b0 JS |
4142 | int i; |
4143 | unsigned long flags = 0; | |
4144 | uint16_t prev_pring_flag; | |
4145 | ||
4146 | lpfc_cleanup_discovery_resources(vport); | |
4147 | ||
4148 | spin_lock_irqsave(&phba->hbalock, flags); | |
92d7f7b0 JS |
4149 | for (i = 0; i < psli->num_rings; i++) { |
4150 | pring = &psli->ring[i]; | |
4151 | prev_pring_flag = pring->flag; | |
5e9d9b82 JS |
4152 | /* Only slow rings */ |
4153 | if (pring->ringno == LPFC_ELS_RING) { | |
858c9f6c | 4154 | pring->flag |= LPFC_DEFERRED_RING_EVENT; |
5e9d9b82 JS |
4155 | /* Set the lpfc data pending flag */ |
4156 | set_bit(LPFC_DATA_READY, &phba->data_flags); | |
4157 | } | |
92d7f7b0 JS |
4158 | /* |
4159 | * Error everything on the txq since these iocbs have not been | |
4160 | * given to the FW yet. | |
4161 | */ | |
92d7f7b0 JS |
4162 | list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { |
4163 | if (iocb->vport != vport) | |
4164 | continue; | |
858c9f6c | 4165 | list_move_tail(&iocb->list, &completions); |
92d7f7b0 | 4166 | pring->txq_cnt--; |
92d7f7b0 JS |
4167 | } |
4168 | ||
4169 | /* Next issue ABTS for everything on the txcmplq */ | |
4170 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, | |
4171 | list) { | |
4172 | if (iocb->vport != vport) | |
4173 | continue; | |
4174 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); | |
4175 | } | |
4176 | ||
4177 | pring->flag = prev_pring_flag; | |
4178 | } | |
4179 | ||
4180 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
4181 | ||
858c9f6c JS |
4182 | while (!list_empty(&completions)) { |
4183 | list_remove_head(&completions, iocb, struct lpfc_iocbq, list); | |
4184 | ||
4185 | if (!iocb->iocb_cmpl) | |
4186 | lpfc_sli_release_iocbq(phba, iocb); | |
4187 | else { | |
4188 | iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT; | |
4189 | iocb->iocb.un.ulpWord[4] = IOERR_SLI_DOWN; | |
4190 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
4191 | } | |
4192 | } | |
92d7f7b0 JS |
4193 | return 1; |
4194 | } | |
4195 | ||
e59058c4 JS |
4196 | /** |
4197 | * lpfc_sli_hba_down: Resource cleanup function for the HBA. | |
4198 | * @phba: Pointer to HBA context object. | |
4199 | * | |
4200 | * This function cleans up all iocb, buffers, mailbox commands | |
4201 | * while shutting down the HBA. This function is called with no | |
4202 | * lock held and always returns 1. | |
4203 | * This function does the following to cleanup driver resources: | |
4204 | * - Free discovery resources for each virtual port | |
4205 | * - Cleanup any pending fabric iocbs | |
4206 | * - Iterate through the iocb txq and free each entry | |
4207 | * in the list. | |
4208 | * - Free up any buffer posted to the HBA | |
4209 | * - Free mailbox commands in the mailbox queue. | |
4210 | **/ | |
dea3101e | 4211 | int |
2e0fef85 | 4212 | lpfc_sli_hba_down(struct lpfc_hba *phba) |
dea3101e | 4213 | { |
2534ba75 | 4214 | LIST_HEAD(completions); |
2e0fef85 | 4215 | struct lpfc_sli *psli = &phba->sli; |
dea3101e | 4216 | struct lpfc_sli_ring *pring; |
0ff10d46 | 4217 | struct lpfc_dmabuf *buf_ptr; |
dea3101e | 4218 | LPFC_MBOXQ_t *pmb; |
2534ba75 JS |
4219 | struct lpfc_iocbq *iocb; |
4220 | IOCB_t *cmd = NULL; | |
dea3101e | 4221 | int i; |
4222 | unsigned long flags = 0; | |
4223 | ||
dea3101e | 4224 | lpfc_hba_down_prep(phba); |
4225 | ||
92d7f7b0 JS |
4226 | lpfc_fabric_abort_hba(phba); |
4227 | ||
2e0fef85 | 4228 | spin_lock_irqsave(&phba->hbalock, flags); |
dea3101e | 4229 | for (i = 0; i < psli->num_rings; i++) { |
4230 | pring = &psli->ring[i]; | |
5e9d9b82 JS |
4231 | /* Only slow rings */ |
4232 | if (pring->ringno == LPFC_ELS_RING) { | |
858c9f6c | 4233 | pring->flag |= LPFC_DEFERRED_RING_EVENT; |
5e9d9b82 JS |
4234 | /* Set the lpfc data pending flag */ |
4235 | set_bit(LPFC_DATA_READY, &phba->data_flags); | |
4236 | } | |
dea3101e | 4237 | |
4238 | /* | |
4239 | * Error everything on the txq since these iocbs have not been | |
4240 | * given to the FW yet. | |
4241 | */ | |
2534ba75 | 4242 | list_splice_init(&pring->txq, &completions); |
dea3101e | 4243 | pring->txq_cnt = 0; |
4244 | ||
2534ba75 | 4245 | } |
2e0fef85 | 4246 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e | 4247 | |
2534ba75 | 4248 | while (!list_empty(&completions)) { |
92d7f7b0 | 4249 | list_remove_head(&completions, iocb, struct lpfc_iocbq, list); |
2534ba75 | 4250 | cmd = &iocb->iocb; |
dea3101e | 4251 | |
2e0fef85 JS |
4252 | if (!iocb->iocb_cmpl) |
4253 | lpfc_sli_release_iocbq(phba, iocb); | |
4254 | else { | |
2534ba75 JS |
4255 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; |
4256 | cmd->un.ulpWord[4] = IOERR_SLI_DOWN; | |
4257 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
2e0fef85 | 4258 | } |
dea3101e | 4259 | } |
4260 | ||
0ff10d46 JS |
4261 | spin_lock_irqsave(&phba->hbalock, flags); |
4262 | list_splice_init(&phba->elsbuf, &completions); | |
4263 | phba->elsbuf_cnt = 0; | |
4264 | phba->elsbuf_prev_cnt = 0; | |
4265 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
4266 | ||
4267 | while (!list_empty(&completions)) { | |
4268 | list_remove_head(&completions, buf_ptr, | |
4269 | struct lpfc_dmabuf, list); | |
4270 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
4271 | kfree(buf_ptr); | |
4272 | } | |
4273 | ||
dea3101e | 4274 | /* Return any active mbox cmds */ |
4275 | del_timer_sync(&psli->mbox_tmo); | |
92d7f7b0 | 4276 | spin_lock_irqsave(&phba->hbalock, flags); |
2e0fef85 | 4277 | |
92d7f7b0 | 4278 | spin_lock(&phba->pport->work_port_lock); |
2e0fef85 | 4279 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; |
92d7f7b0 | 4280 | spin_unlock(&phba->pport->work_port_lock); |
2e0fef85 | 4281 | |
97eab634 JS |
4282 | /* Return any pending or completed mbox cmds */ |
4283 | list_splice_init(&phba->sli.mboxq, &completions); | |
92d7f7b0 JS |
4284 | if (psli->mbox_active) { |
4285 | list_add_tail(&psli->mbox_active->list, &completions); | |
2e0fef85 | 4286 | psli->mbox_active = NULL; |
2e0fef85 | 4287 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
dea3101e | 4288 | } |
92d7f7b0 | 4289 | list_splice_init(&phba->sli.mboxq_cmpl, &completions); |
92d7f7b0 JS |
4290 | spin_unlock_irqrestore(&phba->hbalock, flags); |
4291 | ||
4292 | while (!list_empty(&completions)) { | |
4293 | list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list); | |
dea3101e | 4294 | pmb->mb.mbxStatus = MBX_NOT_FINISHED; |
97eab634 | 4295 | if (pmb->mbox_cmpl) |
dea3101e | 4296 | pmb->mbox_cmpl(phba,pmb); |
dea3101e | 4297 | } |
dea3101e | 4298 | return 1; |
4299 | } | |
4300 | ||
e59058c4 JS |
4301 | /** |
4302 | * lpfc_sli_pcimem_bcopy: SLI memory copy function. | |
4303 | * @srcp: Source memory pointer. | |
4304 | * @destp: Destination memory pointer. | |
4305 | * @cnt: Number of words required to be copied. | |
4306 | * | |
4307 | * This function is used for copying data between driver memory | |
4308 | * and the SLI memory. This function also changes the endianness | |
4309 | * of each word if native endianness is different from SLI | |
4310 | * endianness. This function can be called with or without | |
4311 | * lock. | |
4312 | **/ | |
dea3101e | 4313 | void |
4314 | lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt) | |
4315 | { | |
4316 | uint32_t *src = srcp; | |
4317 | uint32_t *dest = destp; | |
4318 | uint32_t ldata; | |
4319 | int i; | |
4320 | ||
4321 | for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) { | |
4322 | ldata = *src; | |
4323 | ldata = le32_to_cpu(ldata); | |
4324 | *dest = ldata; | |
4325 | src++; | |
4326 | dest++; | |
4327 | } | |
4328 | } | |
4329 | ||
e59058c4 JS |
4330 | |
4331 | /** | |
4332 | * lpfc_sli_ringpostbuf_put: Function to add a buffer to postbufq. | |
4333 | * @phba: Pointer to HBA context object. | |
4334 | * @pring: Pointer to driver SLI ring object. | |
4335 | * @mp: Pointer to driver buffer object. | |
4336 | * | |
4337 | * This function is called with no lock held. | |
4338 | * It always return zero after adding the buffer to the postbufq | |
4339 | * buffer list. | |
4340 | **/ | |
dea3101e | 4341 | int |
2e0fef85 JS |
4342 | lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
4343 | struct lpfc_dmabuf *mp) | |
dea3101e | 4344 | { |
4345 | /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up | |
4346 | later */ | |
2e0fef85 | 4347 | spin_lock_irq(&phba->hbalock); |
dea3101e | 4348 | list_add_tail(&mp->list, &pring->postbufq); |
dea3101e | 4349 | pring->postbufq_cnt++; |
2e0fef85 | 4350 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 4351 | return 0; |
4352 | } | |
4353 | ||
e59058c4 JS |
4354 | /** |
4355 | * lpfc_sli_get_buffer_tag: Tag allocation function for a buffer posted | |
4356 | * using CMD_QUE_XRI64_CX iocb. | |
4357 | * @phba: Pointer to HBA context object. | |
4358 | * | |
4359 | * When HBQ is enabled, buffers are searched based on tags. This function | |
4360 | * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The | |
4361 | * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag | |
4362 | * does not conflict with tags of buffer posted for unsolicited events. | |
4363 | * The function returns the allocated tag. The function is called with | |
4364 | * no locks held. | |
4365 | **/ | |
76bb24ef JS |
4366 | uint32_t |
4367 | lpfc_sli_get_buffer_tag(struct lpfc_hba *phba) | |
4368 | { | |
4369 | spin_lock_irq(&phba->hbalock); | |
4370 | phba->buffer_tag_count++; | |
4371 | /* | |
4372 | * Always set the QUE_BUFTAG_BIT to distiguish between | |
4373 | * a tag assigned by HBQ. | |
4374 | */ | |
4375 | phba->buffer_tag_count |= QUE_BUFTAG_BIT; | |
4376 | spin_unlock_irq(&phba->hbalock); | |
4377 | return phba->buffer_tag_count; | |
4378 | } | |
4379 | ||
e59058c4 JS |
4380 | /** |
4381 | * lpfc_sli_ring_taggedbuf_get: Search HBQ buffer associated with | |
4382 | * posted using CMD_QUE_XRI64_CX iocb. | |
4383 | * @phba: Pointer to HBA context object. | |
4384 | * @pring: Pointer to driver SLI ring object. | |
4385 | * @tag: Buffer tag. | |
4386 | * | |
4387 | * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq | |
4388 | * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX | |
4389 | * iocb is posted to the response ring with the tag of the buffer. | |
4390 | * This function searches the pring->postbufq list using the tag | |
4391 | * to find buffer associated with CMD_IOCB_RET_XRI64_CX | |
4392 | * iocb. If the buffer is found then lpfc_dmabuf object of the | |
4393 | * buffer is returned to the caller else NULL is returned. | |
4394 | * This function is called with no lock held. | |
4395 | **/ | |
76bb24ef JS |
4396 | struct lpfc_dmabuf * |
4397 | lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
4398 | uint32_t tag) | |
4399 | { | |
4400 | struct lpfc_dmabuf *mp, *next_mp; | |
4401 | struct list_head *slp = &pring->postbufq; | |
4402 | ||
4403 | /* Search postbufq, from the begining, looking for a match on tag */ | |
4404 | spin_lock_irq(&phba->hbalock); | |
4405 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { | |
4406 | if (mp->buffer_tag == tag) { | |
4407 | list_del_init(&mp->list); | |
4408 | pring->postbufq_cnt--; | |
4409 | spin_unlock_irq(&phba->hbalock); | |
4410 | return mp; | |
4411 | } | |
4412 | } | |
4413 | ||
4414 | spin_unlock_irq(&phba->hbalock); | |
4415 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
d7c255b2 | 4416 | "0402 Cannot find virtual addr for buffer tag on " |
76bb24ef JS |
4417 | "ring %d Data x%lx x%p x%p x%x\n", |
4418 | pring->ringno, (unsigned long) tag, | |
4419 | slp->next, slp->prev, pring->postbufq_cnt); | |
4420 | ||
4421 | return NULL; | |
4422 | } | |
dea3101e | 4423 | |
e59058c4 JS |
4424 | /** |
4425 | * lpfc_sli_ringpostbuf_get: SLI2 buffer search function for | |
4426 | * unsolicited ct and els events. | |
4427 | * @phba: Pointer to HBA context object. | |
4428 | * @pring: Pointer to driver SLI ring object. | |
4429 | * @phys: DMA address of the buffer. | |
4430 | * | |
4431 | * This function searches the buffer list using the dma_address | |
4432 | * of unsolicited event to find the driver's lpfc_dmabuf object | |
4433 | * corresponding to the dma_address. The function returns the | |
4434 | * lpfc_dmabuf object if a buffer is found else it returns NULL. | |
4435 | * This function is called by the ct and els unsolicited event | |
4436 | * handlers to get the buffer associated with the unsolicited | |
4437 | * event. | |
4438 | * | |
4439 | * This function is called with no lock held. | |
4440 | **/ | |
dea3101e | 4441 | struct lpfc_dmabuf * |
4442 | lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
4443 | dma_addr_t phys) | |
4444 | { | |
4445 | struct lpfc_dmabuf *mp, *next_mp; | |
4446 | struct list_head *slp = &pring->postbufq; | |
4447 | ||
4448 | /* Search postbufq, from the begining, looking for a match on phys */ | |
2e0fef85 | 4449 | spin_lock_irq(&phba->hbalock); |
dea3101e | 4450 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { |
4451 | if (mp->phys == phys) { | |
4452 | list_del_init(&mp->list); | |
4453 | pring->postbufq_cnt--; | |
2e0fef85 | 4454 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 4455 | return mp; |
4456 | } | |
4457 | } | |
4458 | ||
2e0fef85 | 4459 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 4460 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 4461 | "0410 Cannot find virtual addr for mapped buf on " |
dea3101e | 4462 | "ring %d Data x%llx x%p x%p x%x\n", |
e8b62011 | 4463 | pring->ringno, (unsigned long long)phys, |
dea3101e | 4464 | slp->next, slp->prev, pring->postbufq_cnt); |
4465 | return NULL; | |
4466 | } | |
4467 | ||
e59058c4 JS |
4468 | /** |
4469 | * lpfc_sli_abort_els_cmpl: Completion handler for the els abort iocbs. | |
4470 | * @phba: Pointer to HBA context object. | |
4471 | * @cmdiocb: Pointer to driver command iocb object. | |
4472 | * @rspiocb: Pointer to driver response iocb object. | |
4473 | * | |
4474 | * This function is the completion handler for the abort iocbs for | |
4475 | * ELS commands. This function is called from the ELS ring event | |
4476 | * handler with no lock held. This function frees memory resources | |
4477 | * associated with the abort iocb. | |
4478 | **/ | |
dea3101e | 4479 | static void |
2e0fef85 JS |
4480 | lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
4481 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 4482 | { |
2e0fef85 | 4483 | IOCB_t *irsp = &rspiocb->iocb; |
2680eeaa | 4484 | uint16_t abort_iotag, abort_context; |
92d7f7b0 | 4485 | struct lpfc_iocbq *abort_iocb; |
2680eeaa JS |
4486 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
4487 | ||
4488 | abort_iocb = NULL; | |
2680eeaa JS |
4489 | |
4490 | if (irsp->ulpStatus) { | |
4491 | abort_context = cmdiocb->iocb.un.acxri.abortContextTag; | |
4492 | abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag; | |
4493 | ||
2e0fef85 | 4494 | spin_lock_irq(&phba->hbalock); |
2680eeaa JS |
4495 | if (abort_iotag != 0 && abort_iotag <= phba->sli.last_iotag) |
4496 | abort_iocb = phba->sli.iocbq_lookup[abort_iotag]; | |
4497 | ||
92d7f7b0 | 4498 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS | LOG_SLI, |
e8b62011 | 4499 | "0327 Cannot abort els iocb %p " |
92d7f7b0 JS |
4500 | "with tag %x context %x, abort status %x, " |
4501 | "abort code %x\n", | |
e8b62011 JS |
4502 | abort_iocb, abort_iotag, abort_context, |
4503 | irsp->ulpStatus, irsp->un.ulpWord[4]); | |
2680eeaa | 4504 | |
58da1ffb JS |
4505 | /* |
4506 | * If the iocb is not found in Firmware queue the iocb | |
4507 | * might have completed already. Do not free it again. | |
4508 | */ | |
9b379605 | 4509 | if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) { |
58da1ffb JS |
4510 | spin_unlock_irq(&phba->hbalock); |
4511 | lpfc_sli_release_iocbq(phba, cmdiocb); | |
4512 | return; | |
4513 | } | |
2680eeaa JS |
4514 | /* |
4515 | * make sure we have the right iocbq before taking it | |
4516 | * off the txcmplq and try to call completion routine. | |
4517 | */ | |
2e0fef85 JS |
4518 | if (!abort_iocb || |
4519 | abort_iocb->iocb.ulpContext != abort_context || | |
4520 | (abort_iocb->iocb_flag & LPFC_DRIVER_ABORTED) == 0) | |
4521 | spin_unlock_irq(&phba->hbalock); | |
4522 | else { | |
92d7f7b0 | 4523 | list_del_init(&abort_iocb->list); |
2680eeaa | 4524 | pring->txcmplq_cnt--; |
2e0fef85 | 4525 | spin_unlock_irq(&phba->hbalock); |
2680eeaa | 4526 | |
0ff10d46 JS |
4527 | /* Firmware could still be in progress of DMAing |
4528 | * payload, so don't free data buffer till after | |
4529 | * a hbeat. | |
4530 | */ | |
4531 | abort_iocb->iocb_flag |= LPFC_DELAY_MEM_FREE; | |
4532 | ||
92d7f7b0 JS |
4533 | abort_iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED; |
4534 | abort_iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT; | |
4535 | abort_iocb->iocb.un.ulpWord[4] = IOERR_SLI_ABORTED; | |
4536 | (abort_iocb->iocb_cmpl)(phba, abort_iocb, abort_iocb); | |
2680eeaa JS |
4537 | } |
4538 | } | |
4539 | ||
604a3e30 | 4540 | lpfc_sli_release_iocbq(phba, cmdiocb); |
dea3101e | 4541 | return; |
4542 | } | |
4543 | ||
e59058c4 JS |
4544 | /** |
4545 | * lpfc_ignore_els_cmpl: Completion handler for aborted ELS command. | |
4546 | * @phba: Pointer to HBA context object. | |
4547 | * @cmdiocb: Pointer to driver command iocb object. | |
4548 | * @rspiocb: Pointer to driver response iocb object. | |
4549 | * | |
4550 | * The function is called from SLI ring event handler with no | |
4551 | * lock held. This function is the completion handler for ELS commands | |
4552 | * which are aborted. The function frees memory resources used for | |
4553 | * the aborted ELS commands. | |
4554 | **/ | |
92d7f7b0 JS |
4555 | static void |
4556 | lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
4557 | struct lpfc_iocbq *rspiocb) | |
4558 | { | |
4559 | IOCB_t *irsp = &rspiocb->iocb; | |
4560 | ||
4561 | /* ELS cmd tag <ulpIoTag> completes */ | |
4562 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
d7c255b2 | 4563 | "0139 Ignoring ELS cmd tag x%x completion Data: " |
92d7f7b0 | 4564 | "x%x x%x x%x\n", |
e8b62011 | 4565 | irsp->ulpIoTag, irsp->ulpStatus, |
92d7f7b0 | 4566 | irsp->un.ulpWord[4], irsp->ulpTimeout); |
858c9f6c JS |
4567 | if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) |
4568 | lpfc_ct_free_iocb(phba, cmdiocb); | |
4569 | else | |
4570 | lpfc_els_free_iocb(phba, cmdiocb); | |
92d7f7b0 JS |
4571 | return; |
4572 | } | |
4573 | ||
e59058c4 JS |
4574 | /** |
4575 | * lpfc_sli_issue_abort_iotag: Abort function for a command iocb. | |
4576 | * @phba: Pointer to HBA context object. | |
4577 | * @pring: Pointer to driver SLI ring object. | |
4578 | * @cmdiocb: Pointer to driver command iocb object. | |
4579 | * | |
4580 | * This function issues an abort iocb for the provided command | |
4581 | * iocb. This function is called with hbalock held. | |
4582 | * The function returns 0 when it fails due to memory allocation | |
4583 | * failure or when the command iocb is an abort request. | |
4584 | **/ | |
dea3101e | 4585 | int |
2e0fef85 JS |
4586 | lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
4587 | struct lpfc_iocbq *cmdiocb) | |
dea3101e | 4588 | { |
2e0fef85 | 4589 | struct lpfc_vport *vport = cmdiocb->vport; |
0bd4ca25 | 4590 | struct lpfc_iocbq *abtsiocbp; |
dea3101e | 4591 | IOCB_t *icmd = NULL; |
4592 | IOCB_t *iabt = NULL; | |
07951076 JS |
4593 | int retval = IOCB_ERROR; |
4594 | ||
92d7f7b0 JS |
4595 | /* |
4596 | * There are certain command types we don't want to abort. And we | |
4597 | * don't want to abort commands that are already in the process of | |
4598 | * being aborted. | |
07951076 JS |
4599 | */ |
4600 | icmd = &cmdiocb->iocb; | |
2e0fef85 | 4601 | if (icmd->ulpCommand == CMD_ABORT_XRI_CN || |
92d7f7b0 JS |
4602 | icmd->ulpCommand == CMD_CLOSE_XRI_CN || |
4603 | (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0) | |
07951076 JS |
4604 | return 0; |
4605 | ||
858c9f6c JS |
4606 | /* If we're unloading, don't abort iocb on the ELS ring, but change the |
4607 | * callback so that nothing happens when it finishes. | |
07951076 | 4608 | */ |
858c9f6c JS |
4609 | if ((vport->load_flag & FC_UNLOADING) && |
4610 | (pring->ringno == LPFC_ELS_RING)) { | |
92d7f7b0 JS |
4611 | if (cmdiocb->iocb_flag & LPFC_IO_FABRIC) |
4612 | cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl; | |
4613 | else | |
4614 | cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl; | |
07951076 | 4615 | goto abort_iotag_exit; |
92d7f7b0 | 4616 | } |
dea3101e | 4617 | |
4618 | /* issue ABTS for this IOCB based on iotag */ | |
92d7f7b0 | 4619 | abtsiocbp = __lpfc_sli_get_iocbq(phba); |
dea3101e | 4620 | if (abtsiocbp == NULL) |
4621 | return 0; | |
dea3101e | 4622 | |
07951076 JS |
4623 | /* This signals the response to set the correct status |
4624 | * before calling the completion handler. | |
4625 | */ | |
4626 | cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED; | |
4627 | ||
dea3101e | 4628 | iabt = &abtsiocbp->iocb; |
07951076 JS |
4629 | iabt->un.acxri.abortType = ABORT_TYPE_ABTS; |
4630 | iabt->un.acxri.abortContextTag = icmd->ulpContext; | |
4631 | iabt->un.acxri.abortIoTag = icmd->ulpIoTag; | |
4632 | iabt->ulpLe = 1; | |
4633 | iabt->ulpClass = icmd->ulpClass; | |
dea3101e | 4634 | |
2e0fef85 | 4635 | if (phba->link_state >= LPFC_LINK_UP) |
07951076 JS |
4636 | iabt->ulpCommand = CMD_ABORT_XRI_CN; |
4637 | else | |
4638 | iabt->ulpCommand = CMD_CLOSE_XRI_CN; | |
dea3101e | 4639 | |
07951076 | 4640 | abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl; |
5b8bd0c9 | 4641 | |
e8b62011 JS |
4642 | lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, |
4643 | "0339 Abort xri x%x, original iotag x%x, " | |
4644 | "abort cmd iotag x%x\n", | |
4645 | iabt->un.acxri.abortContextTag, | |
4646 | iabt->un.acxri.abortIoTag, abtsiocbp->iotag); | |
92d7f7b0 | 4647 | retval = __lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0); |
dea3101e | 4648 | |
d7c255b2 JS |
4649 | if (retval) |
4650 | __lpfc_sli_release_iocbq(phba, abtsiocbp); | |
07951076 | 4651 | abort_iotag_exit: |
2e0fef85 JS |
4652 | /* |
4653 | * Caller to this routine should check for IOCB_ERROR | |
4654 | * and handle it properly. This routine no longer removes | |
4655 | * iocb off txcmplq and call compl in case of IOCB_ERROR. | |
07951076 | 4656 | */ |
2e0fef85 | 4657 | return retval; |
dea3101e | 4658 | } |
4659 | ||
e59058c4 JS |
4660 | /** |
4661 | * lpfc_sli_validate_fcp_iocb: Filtering function, used to find commands | |
4662 | * associated with a vport/SCSI target/lun. | |
4663 | * @iocbq: Pointer to driver iocb object. | |
4664 | * @vport: Pointer to driver virtual port object. | |
4665 | * @tgt_id: SCSI ID of the target. | |
4666 | * @lun_id: LUN ID of the scsi device. | |
4667 | * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST | |
4668 | * | |
4669 | * This function acts as iocb filter for functions which abort or count | |
4670 | * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return | |
4671 | * 0 if the filtering criteria is met for the given iocb and will return | |
4672 | * 1 if the filtering criteria is not met. | |
4673 | * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the | |
4674 | * given iocb is for the SCSI device specified by vport, tgt_id and | |
4675 | * lun_id parameter. | |
4676 | * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the | |
4677 | * given iocb is for the SCSI target specified by vport and tgt_id | |
4678 | * parameters. | |
4679 | * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the | |
4680 | * given iocb is for the SCSI host associated with the given vport. | |
4681 | * This function is called with no locks held. | |
4682 | **/ | |
dea3101e | 4683 | static int |
51ef4c26 JS |
4684 | lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport, |
4685 | uint16_t tgt_id, uint64_t lun_id, | |
0bd4ca25 | 4686 | lpfc_ctx_cmd ctx_cmd) |
dea3101e | 4687 | { |
0bd4ca25 | 4688 | struct lpfc_scsi_buf *lpfc_cmd; |
dea3101e | 4689 | int rc = 1; |
4690 | ||
0bd4ca25 JSEC |
4691 | if (!(iocbq->iocb_flag & LPFC_IO_FCP)) |
4692 | return rc; | |
4693 | ||
51ef4c26 JS |
4694 | if (iocbq->vport != vport) |
4695 | return rc; | |
4696 | ||
0bd4ca25 | 4697 | lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq); |
0bd4ca25 | 4698 | |
495a714c | 4699 | if (lpfc_cmd->pCmd == NULL) |
dea3101e | 4700 | return rc; |
4701 | ||
4702 | switch (ctx_cmd) { | |
4703 | case LPFC_CTX_LUN: | |
495a714c JS |
4704 | if ((lpfc_cmd->rdata->pnode) && |
4705 | (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) && | |
4706 | (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id)) | |
dea3101e | 4707 | rc = 0; |
4708 | break; | |
4709 | case LPFC_CTX_TGT: | |
495a714c JS |
4710 | if ((lpfc_cmd->rdata->pnode) && |
4711 | (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id)) | |
dea3101e | 4712 | rc = 0; |
4713 | break; | |
dea3101e | 4714 | case LPFC_CTX_HOST: |
4715 | rc = 0; | |
4716 | break; | |
4717 | default: | |
4718 | printk(KERN_ERR "%s: Unknown context cmd type, value %d\n", | |
cadbd4a5 | 4719 | __func__, ctx_cmd); |
dea3101e | 4720 | break; |
4721 | } | |
4722 | ||
4723 | return rc; | |
4724 | } | |
4725 | ||
e59058c4 JS |
4726 | /** |
4727 | * lpfc_sli_sum_iocb: Function to count the number of FCP iocbs pending. | |
4728 | * @vport: Pointer to virtual port. | |
4729 | * @tgt_id: SCSI ID of the target. | |
4730 | * @lun_id: LUN ID of the scsi device. | |
4731 | * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST. | |
4732 | * | |
4733 | * This function returns number of FCP commands pending for the vport. | |
4734 | * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP | |
4735 | * commands pending on the vport associated with SCSI device specified | |
4736 | * by tgt_id and lun_id parameters. | |
4737 | * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP | |
4738 | * commands pending on the vport associated with SCSI target specified | |
4739 | * by tgt_id parameter. | |
4740 | * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP | |
4741 | * commands pending on the vport. | |
4742 | * This function returns the number of iocbs which satisfy the filter. | |
4743 | * This function is called without any lock held. | |
4744 | **/ | |
dea3101e | 4745 | int |
51ef4c26 JS |
4746 | lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id, |
4747 | lpfc_ctx_cmd ctx_cmd) | |
dea3101e | 4748 | { |
51ef4c26 | 4749 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 JSEC |
4750 | struct lpfc_iocbq *iocbq; |
4751 | int sum, i; | |
dea3101e | 4752 | |
0bd4ca25 JSEC |
4753 | for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) { |
4754 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 4755 | |
51ef4c26 JS |
4756 | if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id, |
4757 | ctx_cmd) == 0) | |
0bd4ca25 | 4758 | sum++; |
dea3101e | 4759 | } |
0bd4ca25 | 4760 | |
dea3101e | 4761 | return sum; |
4762 | } | |
4763 | ||
e59058c4 JS |
4764 | /** |
4765 | * lpfc_sli_abort_fcp_cmpl: Completion handler function for an aborted | |
4766 | * FCP iocb. | |
4767 | * @phba: Pointer to HBA context object | |
4768 | * @cmdiocb: Pointer to command iocb object. | |
4769 | * @rspiocb: Pointer to response iocb object. | |
4770 | * | |
4771 | * This function is called when an aborted FCP iocb completes. This | |
4772 | * function is called by the ring event handler with no lock held. | |
4773 | * This function frees the iocb. | |
4774 | **/ | |
5eb95af0 | 4775 | void |
2e0fef85 JS |
4776 | lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
4777 | struct lpfc_iocbq *rspiocb) | |
5eb95af0 | 4778 | { |
604a3e30 | 4779 | lpfc_sli_release_iocbq(phba, cmdiocb); |
5eb95af0 JSEC |
4780 | return; |
4781 | } | |
4782 | ||
e59058c4 JS |
4783 | /** |
4784 | * lpfc_sli_abort_iocb: This function issue abort for all SCSI commands | |
4785 | * pending on a SCSI host(vport)/target/lun. | |
4786 | * @vport: Pointer to virtual port. | |
4787 | * @pring: Pointer to driver SLI ring object. | |
4788 | * @tgt_id: SCSI ID of the target. | |
4789 | * @lun_id: LUN ID of the scsi device. | |
4790 | * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST. | |
4791 | * | |
4792 | * This function sends an abort command for every SCSI command | |
4793 | * associated with the given virtual port pending on the ring | |
4794 | * filtered by lpfc_sli_validate_fcp_iocb function. | |
4795 | * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the | |
4796 | * FCP iocbs associated with lun specified by tgt_id and lun_id | |
4797 | * parameters | |
4798 | * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the | |
4799 | * FCP iocbs associated with SCSI target specified by tgt_id parameter. | |
4800 | * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all | |
4801 | * FCP iocbs associated with virtual port. | |
4802 | * This function returns number of iocbs it failed to abort. | |
4803 | * This function is called with no locks held. | |
4804 | **/ | |
dea3101e | 4805 | int |
51ef4c26 JS |
4806 | lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring, |
4807 | uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd) | |
dea3101e | 4808 | { |
51ef4c26 | 4809 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 JSEC |
4810 | struct lpfc_iocbq *iocbq; |
4811 | struct lpfc_iocbq *abtsiocb; | |
dea3101e | 4812 | IOCB_t *cmd = NULL; |
dea3101e | 4813 | int errcnt = 0, ret_val = 0; |
0bd4ca25 | 4814 | int i; |
dea3101e | 4815 | |
0bd4ca25 JSEC |
4816 | for (i = 1; i <= phba->sli.last_iotag; i++) { |
4817 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 4818 | |
51ef4c26 | 4819 | if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id, |
2e0fef85 | 4820 | abort_cmd) != 0) |
dea3101e | 4821 | continue; |
4822 | ||
4823 | /* issue ABTS for this IOCB based on iotag */ | |
0bd4ca25 | 4824 | abtsiocb = lpfc_sli_get_iocbq(phba); |
dea3101e | 4825 | if (abtsiocb == NULL) { |
4826 | errcnt++; | |
4827 | continue; | |
4828 | } | |
dea3101e | 4829 | |
0bd4ca25 | 4830 | cmd = &iocbq->iocb; |
dea3101e | 4831 | abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS; |
4832 | abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext; | |
4833 | abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag; | |
4834 | abtsiocb->iocb.ulpLe = 1; | |
4835 | abtsiocb->iocb.ulpClass = cmd->ulpClass; | |
2e0fef85 | 4836 | abtsiocb->vport = phba->pport; |
dea3101e | 4837 | |
2e0fef85 | 4838 | if (lpfc_is_link_up(phba)) |
dea3101e | 4839 | abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN; |
4840 | else | |
4841 | abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN; | |
4842 | ||
5eb95af0 JSEC |
4843 | /* Setup callback routine and issue the command. */ |
4844 | abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl; | |
dea3101e | 4845 | ret_val = lpfc_sli_issue_iocb(phba, pring, abtsiocb, 0); |
4846 | if (ret_val == IOCB_ERROR) { | |
604a3e30 | 4847 | lpfc_sli_release_iocbq(phba, abtsiocb); |
dea3101e | 4848 | errcnt++; |
4849 | continue; | |
4850 | } | |
4851 | } | |
4852 | ||
4853 | return errcnt; | |
4854 | } | |
4855 | ||
e59058c4 JS |
4856 | /** |
4857 | * lpfc_sli_wake_iocb_wait: iocb completion handler for iocb issued using | |
4858 | * lpfc_sli_issue_iocb_wait. | |
4859 | * @phba: Pointer to HBA context object. | |
4860 | * @cmdiocbq: Pointer to command iocb. | |
4861 | * @rspiocbq: Pointer to response iocb. | |
4862 | * | |
4863 | * This function is the completion handler for iocbs issued using | |
4864 | * lpfc_sli_issue_iocb_wait function. This function is called by the | |
4865 | * ring event handler function without any lock held. This function | |
4866 | * can be called from both worker thread context and interrupt | |
4867 | * context. This function also can be called from other thread which | |
4868 | * cleans up the SLI layer objects. | |
4869 | * This function copy the contents of the response iocb to the | |
4870 | * response iocb memory object provided by the caller of | |
4871 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
4872 | * sleeps for the iocb completion. | |
4873 | **/ | |
68876920 JSEC |
4874 | static void |
4875 | lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba, | |
4876 | struct lpfc_iocbq *cmdiocbq, | |
4877 | struct lpfc_iocbq *rspiocbq) | |
dea3101e | 4878 | { |
68876920 JSEC |
4879 | wait_queue_head_t *pdone_q; |
4880 | unsigned long iflags; | |
dea3101e | 4881 | |
2e0fef85 | 4882 | spin_lock_irqsave(&phba->hbalock, iflags); |
68876920 JSEC |
4883 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; |
4884 | if (cmdiocbq->context2 && rspiocbq) | |
4885 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, | |
4886 | &rspiocbq->iocb, sizeof(IOCB_t)); | |
4887 | ||
4888 | pdone_q = cmdiocbq->context_un.wait_queue; | |
68876920 JSEC |
4889 | if (pdone_q) |
4890 | wake_up(pdone_q); | |
858c9f6c | 4891 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
dea3101e | 4892 | return; |
4893 | } | |
4894 | ||
e59058c4 JS |
4895 | /** |
4896 | * lpfc_sli_issue_iocb_wait: Synchronous function to issue iocb commands. | |
4897 | * @phba: Pointer to HBA context object.. | |
4898 | * @pring: Pointer to sli ring. | |
4899 | * @piocb: Pointer to command iocb. | |
4900 | * @prspiocbq: Pointer to response iocb. | |
4901 | * @timeout: Timeout in number of seconds. | |
4902 | * | |
4903 | * This function issues the iocb to firmware and waits for the | |
4904 | * iocb to complete. If the iocb command is not | |
4905 | * completed within timeout seconds, it returns IOCB_TIMEDOUT. | |
4906 | * Caller should not free the iocb resources if this function | |
4907 | * returns IOCB_TIMEDOUT. | |
4908 | * The function waits for the iocb completion using an | |
4909 | * non-interruptible wait. | |
4910 | * This function will sleep while waiting for iocb completion. | |
4911 | * So, this function should not be called from any context which | |
4912 | * does not allow sleeping. Due to the same reason, this function | |
4913 | * cannot be called with interrupt disabled. | |
4914 | * This function assumes that the iocb completions occur while | |
4915 | * this function sleep. So, this function cannot be called from | |
4916 | * the thread which process iocb completion for this ring. | |
4917 | * This function clears the iocb_flag of the iocb object before | |
4918 | * issuing the iocb and the iocb completion handler sets this | |
4919 | * flag and wakes this thread when the iocb completes. | |
4920 | * The contents of the response iocb will be copied to prspiocbq | |
4921 | * by the completion handler when the command completes. | |
4922 | * This function returns IOCB_SUCCESS when success. | |
4923 | * This function is called with no lock held. | |
4924 | **/ | |
dea3101e | 4925 | int |
2e0fef85 JS |
4926 | lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba, |
4927 | struct lpfc_sli_ring *pring, | |
4928 | struct lpfc_iocbq *piocb, | |
4929 | struct lpfc_iocbq *prspiocbq, | |
68876920 | 4930 | uint32_t timeout) |
dea3101e | 4931 | { |
7259f0d0 | 4932 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q); |
68876920 JSEC |
4933 | long timeleft, timeout_req = 0; |
4934 | int retval = IOCB_SUCCESS; | |
875fbdfe | 4935 | uint32_t creg_val; |
dea3101e | 4936 | |
4937 | /* | |
68876920 JSEC |
4938 | * If the caller has provided a response iocbq buffer, then context2 |
4939 | * is NULL or its an error. | |
dea3101e | 4940 | */ |
68876920 JSEC |
4941 | if (prspiocbq) { |
4942 | if (piocb->context2) | |
4943 | return IOCB_ERROR; | |
4944 | piocb->context2 = prspiocbq; | |
dea3101e | 4945 | } |
4946 | ||
68876920 JSEC |
4947 | piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait; |
4948 | piocb->context_un.wait_queue = &done_q; | |
4949 | piocb->iocb_flag &= ~LPFC_IO_WAKE; | |
dea3101e | 4950 | |
875fbdfe JSEC |
4951 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
4952 | creg_val = readl(phba->HCregaddr); | |
4953 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); | |
4954 | writel(creg_val, phba->HCregaddr); | |
4955 | readl(phba->HCregaddr); /* flush */ | |
4956 | } | |
4957 | ||
68876920 JSEC |
4958 | retval = lpfc_sli_issue_iocb(phba, pring, piocb, 0); |
4959 | if (retval == IOCB_SUCCESS) { | |
4960 | timeout_req = timeout * HZ; | |
68876920 JSEC |
4961 | timeleft = wait_event_timeout(done_q, |
4962 | piocb->iocb_flag & LPFC_IO_WAKE, | |
4963 | timeout_req); | |
dea3101e | 4964 | |
7054a606 JS |
4965 | if (piocb->iocb_flag & LPFC_IO_WAKE) { |
4966 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 4967 | "0331 IOCB wake signaled\n"); |
7054a606 | 4968 | } else if (timeleft == 0) { |
68876920 | 4969 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 JS |
4970 | "0338 IOCB wait timeout error - no " |
4971 | "wake response Data x%x\n", timeout); | |
68876920 | 4972 | retval = IOCB_TIMEDOUT; |
7054a606 | 4973 | } else { |
68876920 | 4974 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 JS |
4975 | "0330 IOCB wake NOT set, " |
4976 | "Data x%x x%lx\n", | |
68876920 JSEC |
4977 | timeout, (timeleft / jiffies)); |
4978 | retval = IOCB_TIMEDOUT; | |
dea3101e | 4979 | } |
68876920 JSEC |
4980 | } else { |
4981 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
d7c255b2 | 4982 | "0332 IOCB wait issue failed, Data x%x\n", |
e8b62011 | 4983 | retval); |
68876920 | 4984 | retval = IOCB_ERROR; |
dea3101e | 4985 | } |
4986 | ||
875fbdfe JSEC |
4987 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
4988 | creg_val = readl(phba->HCregaddr); | |
4989 | creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); | |
4990 | writel(creg_val, phba->HCregaddr); | |
4991 | readl(phba->HCregaddr); /* flush */ | |
4992 | } | |
4993 | ||
68876920 JSEC |
4994 | if (prspiocbq) |
4995 | piocb->context2 = NULL; | |
4996 | ||
4997 | piocb->context_un.wait_queue = NULL; | |
4998 | piocb->iocb_cmpl = NULL; | |
dea3101e | 4999 | return retval; |
5000 | } | |
68876920 | 5001 | |
e59058c4 JS |
5002 | /** |
5003 | * lpfc_sli_issue_mbox_wait: Synchronous function to issue mailbox. | |
5004 | * @phba: Pointer to HBA context object. | |
5005 | * @pmboxq: Pointer to driver mailbox object. | |
5006 | * @timeout: Timeout in number of seconds. | |
5007 | * | |
5008 | * This function issues the mailbox to firmware and waits for the | |
5009 | * mailbox command to complete. If the mailbox command is not | |
5010 | * completed within timeout seconds, it returns MBX_TIMEOUT. | |
5011 | * The function waits for the mailbox completion using an | |
5012 | * interruptible wait. If the thread is woken up due to a | |
5013 | * signal, MBX_TIMEOUT error is returned to the caller. Caller | |
5014 | * should not free the mailbox resources, if this function returns | |
5015 | * MBX_TIMEOUT. | |
5016 | * This function will sleep while waiting for mailbox completion. | |
5017 | * So, this function should not be called from any context which | |
5018 | * does not allow sleeping. Due to the same reason, this function | |
5019 | * cannot be called with interrupt disabled. | |
5020 | * This function assumes that the mailbox completion occurs while | |
5021 | * this function sleep. So, this function cannot be called from | |
5022 | * the worker thread which processes mailbox completion. | |
5023 | * This function is called in the context of HBA management | |
5024 | * applications. | |
5025 | * This function returns MBX_SUCCESS when successful. | |
5026 | * This function is called with no lock held. | |
5027 | **/ | |
dea3101e | 5028 | int |
2e0fef85 | 5029 | lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq, |
dea3101e | 5030 | uint32_t timeout) |
5031 | { | |
7259f0d0 | 5032 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q); |
dea3101e | 5033 | int retval; |
858c9f6c | 5034 | unsigned long flag; |
dea3101e | 5035 | |
5036 | /* The caller must leave context1 empty. */ | |
98c9ea5c | 5037 | if (pmboxq->context1) |
2e0fef85 | 5038 | return MBX_NOT_FINISHED; |
dea3101e | 5039 | |
495a714c | 5040 | pmboxq->mbox_flag &= ~LPFC_MBX_WAKE; |
dea3101e | 5041 | /* setup wake call as IOCB callback */ |
5042 | pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait; | |
5043 | /* setup context field to pass wait_queue pointer to wake function */ | |
5044 | pmboxq->context1 = &done_q; | |
5045 | ||
dea3101e | 5046 | /* now issue the command */ |
5047 | retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); | |
5048 | ||
5049 | if (retval == MBX_BUSY || retval == MBX_SUCCESS) { | |
7054a606 JS |
5050 | wait_event_interruptible_timeout(done_q, |
5051 | pmboxq->mbox_flag & LPFC_MBX_WAKE, | |
5052 | timeout * HZ); | |
5053 | ||
858c9f6c | 5054 | spin_lock_irqsave(&phba->hbalock, flag); |
dea3101e | 5055 | pmboxq->context1 = NULL; |
7054a606 JS |
5056 | /* |
5057 | * if LPFC_MBX_WAKE flag is set the mailbox is completed | |
5058 | * else do not free the resources. | |
5059 | */ | |
5060 | if (pmboxq->mbox_flag & LPFC_MBX_WAKE) | |
dea3101e | 5061 | retval = MBX_SUCCESS; |
858c9f6c | 5062 | else { |
7054a606 | 5063 | retval = MBX_TIMEOUT; |
858c9f6c JS |
5064 | pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
5065 | } | |
5066 | spin_unlock_irqrestore(&phba->hbalock, flag); | |
dea3101e | 5067 | } |
5068 | ||
dea3101e | 5069 | return retval; |
5070 | } | |
5071 | ||
e59058c4 JS |
5072 | /** |
5073 | * lpfc_sli_flush_mbox_queue: mailbox queue cleanup function. | |
5074 | * @phba: Pointer to HBA context. | |
5075 | * | |
5076 | * This function is called to cleanup any pending mailbox | |
5077 | * objects in the driver queue before bringing the HBA offline. | |
5078 | * This function is called while resetting the HBA. | |
5079 | * The function is called without any lock held. The function | |
5080 | * takes hbalock to update SLI data structure. | |
5081 | * This function returns 1 when there is an active mailbox | |
5082 | * command pending else returns 0. | |
5083 | **/ | |
b4c02652 JS |
5084 | int |
5085 | lpfc_sli_flush_mbox_queue(struct lpfc_hba * phba) | |
5086 | { | |
2e0fef85 | 5087 | struct lpfc_vport *vport = phba->pport; |
b4c02652 | 5088 | int i = 0; |
ed957684 | 5089 | uint32_t ha_copy; |
b4c02652 | 5090 | |
2e0fef85 | 5091 | while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE && !vport->stopped) { |
b4c02652 JS |
5092 | if (i++ > LPFC_MBOX_TMO * 1000) |
5093 | return 1; | |
5094 | ||
ed957684 JS |
5095 | /* |
5096 | * Call lpfc_sli_handle_mb_event only if a mailbox cmd | |
5097 | * did finish. This way we won't get the misleading | |
5098 | * "Stray Mailbox Interrupt" message. | |
5099 | */ | |
5100 | spin_lock_irq(&phba->hbalock); | |
5101 | ha_copy = phba->work_ha; | |
5102 | phba->work_ha &= ~HA_MBATT; | |
5103 | spin_unlock_irq(&phba->hbalock); | |
5104 | ||
5105 | if (ha_copy & HA_MBATT) | |
5106 | if (lpfc_sli_handle_mb_event(phba) == 0) | |
5107 | i = 0; | |
b4c02652 JS |
5108 | |
5109 | msleep(1); | |
5110 | } | |
5111 | ||
5112 | return (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) ? 1 : 0; | |
5113 | } | |
5114 | ||
e59058c4 | 5115 | /** |
9399627f JS |
5116 | * lpfc_sli_check_eratt: check error attention events |
5117 | * @phba: Pointer to HBA context. | |
5118 | * | |
5119 | * This function is called form timer soft interrupt context to check HBA's | |
5120 | * error attention register bit for error attention events. | |
5121 | * | |
5122 | * This fucntion returns 1 when there is Error Attention in the Host Attention | |
5123 | * Register and returns 0 otherwise. | |
5124 | **/ | |
5125 | int | |
5126 | lpfc_sli_check_eratt(struct lpfc_hba *phba) | |
5127 | { | |
5128 | uint32_t ha_copy; | |
5129 | ||
eaf15d5b JS |
5130 | /* If PCI channel is offline, don't process it */ |
5131 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
5132 | return 0; | |
5133 | ||
9399627f JS |
5134 | /* If somebody is waiting to handle an eratt, don't process it |
5135 | * here. The brdkill function will do this. | |
5136 | */ | |
5137 | if (phba->link_flag & LS_IGNORE_ERATT) | |
5138 | return 0; | |
5139 | ||
5140 | /* Check if interrupt handler handles this ERATT */ | |
5141 | spin_lock_irq(&phba->hbalock); | |
5142 | if (phba->hba_flag & HBA_ERATT_HANDLED) { | |
5143 | /* Interrupt handler has handled ERATT */ | |
5144 | spin_unlock_irq(&phba->hbalock); | |
5145 | return 0; | |
5146 | } | |
5147 | ||
5148 | /* Read chip Host Attention (HA) register */ | |
5149 | ha_copy = readl(phba->HAregaddr); | |
5150 | if (ha_copy & HA_ERATT) { | |
5151 | /* Read host status register to retrieve error event */ | |
5152 | lpfc_sli_read_hs(phba); | |
5153 | /* Set the driver HA work bitmap */ | |
5154 | phba->work_ha |= HA_ERATT; | |
5155 | /* Indicate polling handles this ERATT */ | |
5156 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
5157 | spin_unlock_irq(&phba->hbalock); | |
5158 | return 1; | |
5159 | } | |
5160 | spin_unlock_irq(&phba->hbalock); | |
5161 | return 0; | |
5162 | } | |
5163 | ||
5164 | /** | |
5165 | * lpfc_sp_intr_handler: The slow-path interrupt handler of lpfc driver. | |
e59058c4 JS |
5166 | * @irq: Interrupt number. |
5167 | * @dev_id: The device context pointer. | |
5168 | * | |
9399627f JS |
5169 | * This function is directly called from the PCI layer as an interrupt |
5170 | * service routine when the device is enabled with MSI-X multi-message | |
5171 | * interrupt mode and there are slow-path events in the HBA. However, | |
5172 | * when the device is enabled with either MSI or Pin-IRQ interrupt mode, | |
5173 | * this function is called as part of the device-level interrupt handler. | |
5174 | * When the PCI slot is in error recovery or the HBA is undergoing | |
5175 | * initialization, the interrupt handler will not process the interrupt. | |
5176 | * The link attention and ELS ring attention events are handled by the | |
5177 | * worker thread. The interrupt handler signals the worker thread and | |
5178 | * and returns for these events. This function is called without any | |
5179 | * lock held. It gets the hbalock to access and update SLI data | |
5180 | * structures. | |
5181 | * | |
5182 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
5183 | * returns IRQ_NONE. | |
e59058c4 | 5184 | **/ |
dea3101e | 5185 | irqreturn_t |
9399627f | 5186 | lpfc_sp_intr_handler(int irq, void *dev_id) |
dea3101e | 5187 | { |
2e0fef85 | 5188 | struct lpfc_hba *phba; |
dea3101e | 5189 | uint32_t ha_copy; |
5190 | uint32_t work_ha_copy; | |
5191 | unsigned long status; | |
5b75da2f | 5192 | unsigned long iflag; |
dea3101e | 5193 | uint32_t control; |
5194 | ||
92d7f7b0 | 5195 | MAILBOX_t *mbox, *pmbox; |
858c9f6c JS |
5196 | struct lpfc_vport *vport; |
5197 | struct lpfc_nodelist *ndlp; | |
5198 | struct lpfc_dmabuf *mp; | |
92d7f7b0 JS |
5199 | LPFC_MBOXQ_t *pmb; |
5200 | int rc; | |
5201 | ||
dea3101e | 5202 | /* |
5203 | * Get the driver's phba structure from the dev_id and | |
5204 | * assume the HBA is not interrupting. | |
5205 | */ | |
9399627f | 5206 | phba = (struct lpfc_hba *)dev_id; |
dea3101e | 5207 | |
5208 | if (unlikely(!phba)) | |
5209 | return IRQ_NONE; | |
5210 | ||
dea3101e | 5211 | /* |
9399627f JS |
5212 | * Stuff needs to be attented to when this function is invoked as an |
5213 | * individual interrupt handler in MSI-X multi-message interrupt mode | |
dea3101e | 5214 | */ |
9399627f JS |
5215 | if (phba->intr_type == MSIX) { |
5216 | /* If the pci channel is offline, ignore all the interrupts */ | |
5217 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
5218 | return IRQ_NONE; | |
5219 | /* Update device-level interrupt statistics */ | |
5220 | phba->sli.slistat.sli_intr++; | |
5221 | /* Ignore all interrupts during initialization. */ | |
5222 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) | |
5223 | return IRQ_NONE; | |
5224 | /* Need to read HA REG for slow-path events */ | |
5b75da2f | 5225 | spin_lock_irqsave(&phba->hbalock, iflag); |
34b02dcd | 5226 | ha_copy = readl(phba->HAregaddr); |
9399627f JS |
5227 | /* If somebody is waiting to handle an eratt don't process it |
5228 | * here. The brdkill function will do this. | |
5229 | */ | |
5230 | if (phba->link_flag & LS_IGNORE_ERATT) | |
5231 | ha_copy &= ~HA_ERATT; | |
5232 | /* Check the need for handling ERATT in interrupt handler */ | |
5233 | if (ha_copy & HA_ERATT) { | |
5234 | if (phba->hba_flag & HBA_ERATT_HANDLED) | |
5235 | /* ERATT polling has handled ERATT */ | |
5236 | ha_copy &= ~HA_ERATT; | |
5237 | else | |
5238 | /* Indicate interrupt handler handles ERATT */ | |
5239 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
5240 | } | |
5241 | /* Clear up only attention source related to slow-path */ | |
5242 | writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)), | |
5243 | phba->HAregaddr); | |
5244 | readl(phba->HAregaddr); /* flush */ | |
5b75da2f | 5245 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
9399627f JS |
5246 | } else |
5247 | ha_copy = phba->ha_copy; | |
dea3101e | 5248 | |
dea3101e | 5249 | work_ha_copy = ha_copy & phba->work_ha_mask; |
5250 | ||
9399627f | 5251 | if (work_ha_copy) { |
dea3101e | 5252 | if (work_ha_copy & HA_LATT) { |
5253 | if (phba->sli.sli_flag & LPFC_PROCESS_LA) { | |
5254 | /* | |
5255 | * Turn off Link Attention interrupts | |
5256 | * until CLEAR_LA done | |
5257 | */ | |
5b75da2f | 5258 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e | 5259 | phba->sli.sli_flag &= ~LPFC_PROCESS_LA; |
5260 | control = readl(phba->HCregaddr); | |
5261 | control &= ~HC_LAINT_ENA; | |
5262 | writel(control, phba->HCregaddr); | |
5263 | readl(phba->HCregaddr); /* flush */ | |
5b75da2f | 5264 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 5265 | } |
5266 | else | |
5267 | work_ha_copy &= ~HA_LATT; | |
5268 | } | |
5269 | ||
9399627f | 5270 | if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) { |
858c9f6c JS |
5271 | /* |
5272 | * Turn off Slow Rings interrupts, LPFC_ELS_RING is | |
5273 | * the only slow ring. | |
5274 | */ | |
5275 | status = (work_ha_copy & | |
5276 | (HA_RXMASK << (4*LPFC_ELS_RING))); | |
5277 | status >>= (4*LPFC_ELS_RING); | |
5278 | if (status & HA_RXMASK) { | |
5b75da2f | 5279 | spin_lock_irqsave(&phba->hbalock, iflag); |
858c9f6c | 5280 | control = readl(phba->HCregaddr); |
a58cbd52 JS |
5281 | |
5282 | lpfc_debugfs_slow_ring_trc(phba, | |
5283 | "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x", | |
5284 | control, status, | |
5285 | (uint32_t)phba->sli.slistat.sli_intr); | |
5286 | ||
858c9f6c | 5287 | if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) { |
a58cbd52 JS |
5288 | lpfc_debugfs_slow_ring_trc(phba, |
5289 | "ISR Disable ring:" | |
5290 | "pwork:x%x hawork:x%x wait:x%x", | |
5291 | phba->work_ha, work_ha_copy, | |
5292 | (uint32_t)((unsigned long) | |
5e9d9b82 | 5293 | &phba->work_waitq)); |
a58cbd52 | 5294 | |
858c9f6c JS |
5295 | control &= |
5296 | ~(HC_R0INT_ENA << LPFC_ELS_RING); | |
dea3101e | 5297 | writel(control, phba->HCregaddr); |
5298 | readl(phba->HCregaddr); /* flush */ | |
dea3101e | 5299 | } |
a58cbd52 JS |
5300 | else { |
5301 | lpfc_debugfs_slow_ring_trc(phba, | |
5302 | "ISR slow ring: pwork:" | |
5303 | "x%x hawork:x%x wait:x%x", | |
5304 | phba->work_ha, work_ha_copy, | |
5305 | (uint32_t)((unsigned long) | |
5e9d9b82 | 5306 | &phba->work_waitq)); |
a58cbd52 | 5307 | } |
5b75da2f | 5308 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 5309 | } |
5310 | } | |
5b75da2f | 5311 | spin_lock_irqsave(&phba->hbalock, iflag); |
9399627f JS |
5312 | if (work_ha_copy & HA_ERATT) |
5313 | lpfc_sli_read_hs(phba); | |
5314 | if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) { | |
92d7f7b0 JS |
5315 | pmb = phba->sli.mbox_active; |
5316 | pmbox = &pmb->mb; | |
34b02dcd | 5317 | mbox = phba->mbox; |
858c9f6c | 5318 | vport = pmb->vport; |
92d7f7b0 JS |
5319 | |
5320 | /* First check out the status word */ | |
5321 | lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t)); | |
5322 | if (pmbox->mbxOwner != OWN_HOST) { | |
5b75da2f | 5323 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
92d7f7b0 JS |
5324 | /* |
5325 | * Stray Mailbox Interrupt, mbxCommand <cmd> | |
5326 | * mbxStatus <status> | |
5327 | */ | |
09372820 | 5328 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | |
92d7f7b0 | 5329 | LOG_SLI, |
e8b62011 | 5330 | "(%d):0304 Stray Mailbox " |
92d7f7b0 JS |
5331 | "Interrupt mbxCommand x%x " |
5332 | "mbxStatus x%x\n", | |
e8b62011 | 5333 | (vport ? vport->vpi : 0), |
92d7f7b0 JS |
5334 | pmbox->mbxCommand, |
5335 | pmbox->mbxStatus); | |
09372820 JS |
5336 | /* clear mailbox attention bit */ |
5337 | work_ha_copy &= ~HA_MBATT; | |
5338 | } else { | |
97eab634 | 5339 | phba->sli.mbox_active = NULL; |
5b75da2f | 5340 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
09372820 JS |
5341 | phba->last_completion_time = jiffies; |
5342 | del_timer(&phba->sli.mbox_tmo); | |
09372820 JS |
5343 | if (pmb->mbox_cmpl) { |
5344 | lpfc_sli_pcimem_bcopy(mbox, pmbox, | |
5345 | MAILBOX_CMD_SIZE); | |
5346 | } | |
5347 | if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) { | |
5348 | pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG; | |
5349 | ||
5350 | lpfc_debugfs_disc_trc(vport, | |
5351 | LPFC_DISC_TRC_MBOX_VPORT, | |
5352 | "MBOX dflt rpi: : " | |
5353 | "status:x%x rpi:x%x", | |
5354 | (uint32_t)pmbox->mbxStatus, | |
5355 | pmbox->un.varWords[0], 0); | |
5356 | ||
5357 | if (!pmbox->mbxStatus) { | |
5358 | mp = (struct lpfc_dmabuf *) | |
5359 | (pmb->context1); | |
5360 | ndlp = (struct lpfc_nodelist *) | |
5361 | pmb->context2; | |
5362 | ||
5363 | /* Reg_LOGIN of dflt RPI was | |
5364 | * successful. new lets get | |
5365 | * rid of the RPI using the | |
5366 | * same mbox buffer. | |
5367 | */ | |
5368 | lpfc_unreg_login(phba, | |
5369 | vport->vpi, | |
5370 | pmbox->un.varWords[0], | |
5371 | pmb); | |
5372 | pmb->mbox_cmpl = | |
5373 | lpfc_mbx_cmpl_dflt_rpi; | |
5374 | pmb->context1 = mp; | |
5375 | pmb->context2 = ndlp; | |
5376 | pmb->vport = vport; | |
58da1ffb JS |
5377 | rc = lpfc_sli_issue_mbox(phba, |
5378 | pmb, | |
5379 | MBX_NOWAIT); | |
5380 | if (rc != MBX_BUSY) | |
5381 | lpfc_printf_log(phba, | |
5382 | KERN_ERR, | |
5383 | LOG_MBOX | LOG_SLI, | |
d7c255b2 | 5384 | "0350 rc should have" |
58da1ffb | 5385 | "been MBX_BUSY"); |
09372820 JS |
5386 | goto send_current_mbox; |
5387 | } | |
858c9f6c | 5388 | } |
5b75da2f JS |
5389 | spin_lock_irqsave( |
5390 | &phba->pport->work_port_lock, | |
5391 | iflag); | |
09372820 JS |
5392 | phba->pport->work_port_events &= |
5393 | ~WORKER_MBOX_TMO; | |
5b75da2f JS |
5394 | spin_unlock_irqrestore( |
5395 | &phba->pport->work_port_lock, | |
5396 | iflag); | |
09372820 | 5397 | lpfc_mbox_cmpl_put(phba, pmb); |
858c9f6c | 5398 | } |
97eab634 | 5399 | } else |
5b75da2f | 5400 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
9399627f | 5401 | |
92d7f7b0 JS |
5402 | if ((work_ha_copy & HA_MBATT) && |
5403 | (phba->sli.mbox_active == NULL)) { | |
858c9f6c | 5404 | send_current_mbox: |
92d7f7b0 | 5405 | /* Process next mailbox command if there is one */ |
58da1ffb JS |
5406 | do { |
5407 | rc = lpfc_sli_issue_mbox(phba, NULL, | |
5408 | MBX_NOWAIT); | |
5409 | } while (rc == MBX_NOT_FINISHED); | |
5410 | if (rc != MBX_SUCCESS) | |
5411 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | | |
5412 | LOG_SLI, "0349 rc should be " | |
5413 | "MBX_SUCCESS"); | |
92d7f7b0 JS |
5414 | } |
5415 | ||
5b75da2f | 5416 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e | 5417 | phba->work_ha |= work_ha_copy; |
5b75da2f | 5418 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
5e9d9b82 | 5419 | lpfc_worker_wake_up(phba); |
dea3101e | 5420 | } |
9399627f | 5421 | return IRQ_HANDLED; |
dea3101e | 5422 | |
9399627f JS |
5423 | } /* lpfc_sp_intr_handler */ |
5424 | ||
5425 | /** | |
5426 | * lpfc_fp_intr_handler: The fast-path interrupt handler of lpfc driver. | |
5427 | * @irq: Interrupt number. | |
5428 | * @dev_id: The device context pointer. | |
5429 | * | |
5430 | * This function is directly called from the PCI layer as an interrupt | |
5431 | * service routine when the device is enabled with MSI-X multi-message | |
5432 | * interrupt mode and there is a fast-path FCP IOCB ring event in the | |
5433 | * HBA. However, when the device is enabled with either MSI or Pin-IRQ | |
5434 | * interrupt mode, this function is called as part of the device-level | |
5435 | * interrupt handler. When the PCI slot is in error recovery or the HBA | |
5436 | * is undergoing initialization, the interrupt handler will not process | |
5437 | * the interrupt. The SCSI FCP fast-path ring event are handled in the | |
5438 | * intrrupt context. This function is called without any lock held. It | |
5439 | * gets the hbalock to access and update SLI data structures. | |
5440 | * | |
5441 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
5442 | * returns IRQ_NONE. | |
5443 | **/ | |
5444 | irqreturn_t | |
5445 | lpfc_fp_intr_handler(int irq, void *dev_id) | |
5446 | { | |
5447 | struct lpfc_hba *phba; | |
5448 | uint32_t ha_copy; | |
5449 | unsigned long status; | |
5b75da2f | 5450 | unsigned long iflag; |
9399627f JS |
5451 | |
5452 | /* Get the driver's phba structure from the dev_id and | |
5453 | * assume the HBA is not interrupting. | |
5454 | */ | |
5455 | phba = (struct lpfc_hba *) dev_id; | |
5456 | ||
5457 | if (unlikely(!phba)) | |
5458 | return IRQ_NONE; | |
5459 | ||
5460 | /* | |
5461 | * Stuff needs to be attented to when this function is invoked as an | |
5462 | * individual interrupt handler in MSI-X multi-message interrupt mode | |
5463 | */ | |
5464 | if (phba->intr_type == MSIX) { | |
5465 | /* If pci channel is offline, ignore all the interrupts */ | |
5466 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
5467 | return IRQ_NONE; | |
5468 | /* Update device-level interrupt statistics */ | |
5469 | phba->sli.slistat.sli_intr++; | |
5470 | /* Ignore all interrupts during initialization. */ | |
5471 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) | |
5472 | return IRQ_NONE; | |
5473 | /* Need to read HA REG for FCP ring and other ring events */ | |
5474 | ha_copy = readl(phba->HAregaddr); | |
5475 | /* Clear up only attention source related to fast-path */ | |
5b75da2f | 5476 | spin_lock_irqsave(&phba->hbalock, iflag); |
9399627f JS |
5477 | writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)), |
5478 | phba->HAregaddr); | |
5479 | readl(phba->HAregaddr); /* flush */ | |
5b75da2f | 5480 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
9399627f JS |
5481 | } else |
5482 | ha_copy = phba->ha_copy; | |
dea3101e | 5483 | |
5484 | /* | |
9399627f | 5485 | * Process all events on FCP ring. Take the optimized path for FCP IO. |
dea3101e | 5486 | */ |
9399627f JS |
5487 | ha_copy &= ~(phba->work_ha_mask); |
5488 | ||
5489 | status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); | |
dea3101e | 5490 | status >>= (4*LPFC_FCP_RING); |
858c9f6c | 5491 | if (status & HA_RXMASK) |
dea3101e | 5492 | lpfc_sli_handle_fast_ring_event(phba, |
5493 | &phba->sli.ring[LPFC_FCP_RING], | |
5494 | status); | |
a4bc3379 JS |
5495 | |
5496 | if (phba->cfg_multi_ring_support == 2) { | |
5497 | /* | |
9399627f JS |
5498 | * Process all events on extra ring. Take the optimized path |
5499 | * for extra ring IO. | |
a4bc3379 | 5500 | */ |
9399627f | 5501 | status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING))); |
a4bc3379 | 5502 | status >>= (4*LPFC_EXTRA_RING); |
858c9f6c | 5503 | if (status & HA_RXMASK) { |
a4bc3379 JS |
5504 | lpfc_sli_handle_fast_ring_event(phba, |
5505 | &phba->sli.ring[LPFC_EXTRA_RING], | |
5506 | status); | |
5507 | } | |
5508 | } | |
dea3101e | 5509 | return IRQ_HANDLED; |
9399627f JS |
5510 | } /* lpfc_fp_intr_handler */ |
5511 | ||
5512 | /** | |
5513 | * lpfc_intr_handler: The device-level interrupt handler of lpfc driver. | |
5514 | * @irq: Interrupt number. | |
5515 | * @dev_id: The device context pointer. | |
5516 | * | |
5517 | * This function is the device-level interrupt handler called from the PCI | |
5518 | * layer when either MSI or Pin-IRQ interrupt mode is enabled and there is | |
5519 | * an event in the HBA which requires driver attention. This function | |
5520 | * invokes the slow-path interrupt attention handling function and fast-path | |
5521 | * interrupt attention handling function in turn to process the relevant | |
5522 | * HBA attention events. This function is called without any lock held. It | |
5523 | * gets the hbalock to access and update SLI data structures. | |
5524 | * | |
5525 | * This function returns IRQ_HANDLED when interrupt is handled, else it | |
5526 | * returns IRQ_NONE. | |
5527 | **/ | |
5528 | irqreturn_t | |
5529 | lpfc_intr_handler(int irq, void *dev_id) | |
5530 | { | |
5531 | struct lpfc_hba *phba; | |
5532 | irqreturn_t sp_irq_rc, fp_irq_rc; | |
5533 | unsigned long status1, status2; | |
5534 | ||
5535 | /* | |
5536 | * Get the driver's phba structure from the dev_id and | |
5537 | * assume the HBA is not interrupting. | |
5538 | */ | |
5539 | phba = (struct lpfc_hba *) dev_id; | |
5540 | ||
5541 | if (unlikely(!phba)) | |
5542 | return IRQ_NONE; | |
5543 | ||
5544 | /* If the pci channel is offline, ignore all the interrupts. */ | |
5545 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
5546 | return IRQ_NONE; | |
5547 | ||
5548 | /* Update device level interrupt statistics */ | |
5549 | phba->sli.slistat.sli_intr++; | |
5550 | ||
5551 | /* Ignore all interrupts during initialization. */ | |
5552 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) | |
5553 | return IRQ_NONE; | |
5554 | ||
5555 | spin_lock(&phba->hbalock); | |
5556 | phba->ha_copy = readl(phba->HAregaddr); | |
5557 | if (unlikely(!phba->ha_copy)) { | |
5558 | spin_unlock(&phba->hbalock); | |
5559 | return IRQ_NONE; | |
5560 | } else if (phba->ha_copy & HA_ERATT) { | |
5561 | if (phba->hba_flag & HBA_ERATT_HANDLED) | |
5562 | /* ERATT polling has handled ERATT */ | |
5563 | phba->ha_copy &= ~HA_ERATT; | |
5564 | else | |
5565 | /* Indicate interrupt handler handles ERATT */ | |
5566 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
5567 | } | |
5568 | ||
5569 | /* Clear attention sources except link and error attentions */ | |
5570 | writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr); | |
5571 | readl(phba->HAregaddr); /* flush */ | |
5572 | spin_unlock(&phba->hbalock); | |
5573 | ||
5574 | /* | |
5575 | * Invokes slow-path host attention interrupt handling as appropriate. | |
5576 | */ | |
5577 | ||
5578 | /* status of events with mailbox and link attention */ | |
5579 | status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT); | |
5580 | ||
5581 | /* status of events with ELS ring */ | |
5582 | status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); | |
5583 | status2 >>= (4*LPFC_ELS_RING); | |
5584 | ||
5585 | if (status1 || (status2 & HA_RXMASK)) | |
5586 | sp_irq_rc = lpfc_sp_intr_handler(irq, dev_id); | |
5587 | else | |
5588 | sp_irq_rc = IRQ_NONE; | |
5589 | ||
5590 | /* | |
5591 | * Invoke fast-path host attention interrupt handling as appropriate. | |
5592 | */ | |
5593 | ||
5594 | /* status of events with FCP ring */ | |
5595 | status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); | |
5596 | status1 >>= (4*LPFC_FCP_RING); | |
5597 | ||
5598 | /* status of events with extra ring */ | |
5599 | if (phba->cfg_multi_ring_support == 2) { | |
5600 | status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING))); | |
5601 | status2 >>= (4*LPFC_EXTRA_RING); | |
5602 | } else | |
5603 | status2 = 0; | |
5604 | ||
5605 | if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK)) | |
5606 | fp_irq_rc = lpfc_fp_intr_handler(irq, dev_id); | |
5607 | else | |
5608 | fp_irq_rc = IRQ_NONE; | |
dea3101e | 5609 | |
9399627f JS |
5610 | /* Return device-level interrupt handling status */ |
5611 | return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc; | |
5612 | } /* lpfc_intr_handler */ |