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dea3101e JB |
1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
c44ce173 | 3 | * Fibre Channel Host Bus Adapters. * |
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 JB |
8 | * * |
9 | * This program is free software; you can redistribute it and/or * | |
c44ce173 JSEC |
10 | * modify it under the terms of version 2 of the GNU General * |
11 | * Public License as published by the Free Software Foundation. * | |
12 | * This program is distributed in the hope that it will be useful. * | |
13 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * | |
14 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * | |
15 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * | |
16 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * | |
17 | * TO BE LEGALLY INVALID. See the GNU General Public License for * | |
18 | * more details, a copy of which can be found in the file COPYING * | |
19 | * included with this package. * | |
dea3101e JB |
20 | *******************************************************************/ |
21 | ||
dea3101e JB |
22 | #include <linux/blkdev.h> |
23 | #include <linux/pci.h> | |
24 | #include <linux/interrupt.h> | |
25 | #include <linux/delay.h> | |
26 | ||
91886523 | 27 | #include <scsi/scsi.h> |
dea3101e JB |
28 | #include <scsi/scsi_cmnd.h> |
29 | #include <scsi/scsi_device.h> | |
30 | #include <scsi/scsi_host.h> | |
f888ba3c | 31 | #include <scsi/scsi_transport_fc.h> |
dea3101e JB |
32 | |
33 | #include "lpfc_hw.h" | |
34 | #include "lpfc_sli.h" | |
35 | #include "lpfc_disc.h" | |
36 | #include "lpfc_scsi.h" | |
37 | #include "lpfc.h" | |
38 | #include "lpfc_crtn.h" | |
39 | #include "lpfc_logmsg.h" | |
40 | #include "lpfc_compat.h" | |
858c9f6c | 41 | #include "lpfc_debugfs.h" |
dea3101e JB |
42 | |
43 | /* | |
44 | * Define macro to log: Mailbox command x%x cannot issue Data | |
45 | * This allows multiple uses of lpfc_msgBlk0311 | |
46 | * w/o perturbing log msg utility. | |
47 | */ | |
92d7f7b0 | 48 | #define LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag) \ |
dea3101e JB |
49 | lpfc_printf_log(phba, \ |
50 | KERN_INFO, \ | |
51 | LOG_MBOX | LOG_SLI, \ | |
e8b62011 | 52 | "(%d):0311 Mailbox command x%x cannot " \ |
92d7f7b0 | 53 | "issue Data: x%x x%x x%x\n", \ |
92d7f7b0 JS |
54 | pmbox->vport ? pmbox->vport->vpi : 0, \ |
55 | pmbox->mb.mbxCommand, \ | |
2e0fef85 | 56 | phba->pport->port_state, \ |
dea3101e | 57 | psli->sli_flag, \ |
2e0fef85 | 58 | flag) |
dea3101e JB |
59 | |
60 | ||
61 | /* There are only four IOCB completion types. */ | |
62 | typedef enum _lpfc_iocb_type { | |
63 | LPFC_UNKNOWN_IOCB, | |
64 | LPFC_UNSOL_IOCB, | |
65 | LPFC_SOL_IOCB, | |
66 | LPFC_ABORT_IOCB | |
67 | } lpfc_iocb_type; | |
68 | ||
e59058c4 JS |
69 | /** |
70 | * lpfc_cmd_iocb: Get next command iocb entry in the ring. | |
71 | * @phba: Pointer to HBA context object. | |
72 | * @pring: Pointer to driver SLI ring object. | |
73 | * | |
74 | * This function returns pointer to next command iocb entry | |
75 | * in the command ring. The caller must hold hbalock to prevent | |
76 | * other threads consume the next command iocb. | |
77 | * SLI-2/SLI-3 provide different sized iocbs. | |
78 | **/ | |
ed957684 JS |
79 | static inline IOCB_t * |
80 | lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
81 | { | |
82 | return (IOCB_t *) (((char *) pring->cmdringaddr) + | |
83 | pring->cmdidx * phba->iocb_cmd_size); | |
84 | } | |
85 | ||
e59058c4 JS |
86 | /** |
87 | * lpfc_resp_iocb: Get next response iocb entry in the ring. | |
88 | * @phba: Pointer to HBA context object. | |
89 | * @pring: Pointer to driver SLI ring object. | |
90 | * | |
91 | * This function returns pointer to next response iocb entry | |
92 | * in the response ring. The caller must hold hbalock to make sure | |
93 | * that no other thread consume the next response iocb. | |
94 | * SLI-2/SLI-3 provide different sized iocbs. | |
95 | **/ | |
ed957684 JS |
96 | static inline IOCB_t * |
97 | lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
98 | { | |
99 | return (IOCB_t *) (((char *) pring->rspringaddr) + | |
100 | pring->rspidx * phba->iocb_rsp_size); | |
101 | } | |
102 | ||
e59058c4 JS |
103 | /** |
104 | * __lpfc_sli_get_iocbq: Allocates an iocb object from iocb pool. | |
105 | * @phba: Pointer to HBA context object. | |
106 | * | |
107 | * This function is called with hbalock held. This function | |
108 | * allocates a new driver iocb object from the iocb pool. If the | |
109 | * allocation is successful, it returns pointer to the newly | |
110 | * allocated iocb object else it returns NULL. | |
111 | **/ | |
2e0fef85 JS |
112 | static struct lpfc_iocbq * |
113 | __lpfc_sli_get_iocbq(struct lpfc_hba *phba) | |
0bd4ca25 JSEC |
114 | { |
115 | struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list; | |
116 | struct lpfc_iocbq * iocbq = NULL; | |
117 | ||
118 | list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list); | |
119 | return iocbq; | |
120 | } | |
121 | ||
e59058c4 JS |
122 | /** |
123 | * lpfc_sli_get_iocbq: Allocates an iocb object from iocb pool. | |
124 | * @phba: Pointer to HBA context object. | |
125 | * | |
126 | * This function is called with no lock held. This function | |
127 | * allocates a new driver iocb object from the iocb pool. If the | |
128 | * allocation is successful, it returns pointer to the newly | |
129 | * allocated iocb object else it returns NULL. | |
130 | **/ | |
2e0fef85 JS |
131 | struct lpfc_iocbq * |
132 | lpfc_sli_get_iocbq(struct lpfc_hba *phba) | |
133 | { | |
134 | struct lpfc_iocbq * iocbq = NULL; | |
135 | unsigned long iflags; | |
136 | ||
137 | spin_lock_irqsave(&phba->hbalock, iflags); | |
138 | iocbq = __lpfc_sli_get_iocbq(phba); | |
139 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
140 | return iocbq; | |
141 | } | |
142 | ||
e59058c4 JS |
143 | /** |
144 | * __lpfc_sli_release_iocbq: Release iocb to the iocb pool. | |
145 | * @phba: Pointer to HBA context object. | |
146 | * @iocbq: Pointer to driver iocb object. | |
147 | * | |
148 | * This function is called with hbalock held to release driver | |
149 | * iocb object to the iocb pool. The iotag in the iocb object | |
150 | * does not change for each use of the iocb object. This function | |
151 | * clears all other fields of the iocb object when it is freed. | |
152 | **/ | |
a6ababd2 | 153 | static void |
2e0fef85 | 154 | __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) |
604a3e30 | 155 | { |
2e0fef85 | 156 | size_t start_clean = offsetof(struct lpfc_iocbq, iocb); |
604a3e30 JB |
157 | |
158 | /* | |
159 | * Clean all volatile data fields, preserve iotag and node struct. | |
160 | */ | |
161 | memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean); | |
162 | list_add_tail(&iocbq->list, &phba->lpfc_iocb_list); | |
163 | } | |
164 | ||
e59058c4 JS |
165 | /** |
166 | * lpfc_sli_release_iocbq: Release iocb to the iocb pool. | |
167 | * @phba: Pointer to HBA context object. | |
168 | * @iocbq: Pointer to driver iocb object. | |
169 | * | |
170 | * This function is called with no lock held to release the iocb to | |
171 | * iocb pool. | |
172 | **/ | |
2e0fef85 JS |
173 | void |
174 | lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) | |
175 | { | |
176 | unsigned long iflags; | |
177 | ||
178 | /* | |
179 | * Clean all volatile data fields, preserve iotag and node struct. | |
180 | */ | |
181 | spin_lock_irqsave(&phba->hbalock, iflags); | |
182 | __lpfc_sli_release_iocbq(phba, iocbq); | |
183 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
184 | } | |
185 | ||
e59058c4 JS |
186 | /** |
187 | * lpfc_sli_iocb_cmd_type: Get the iocb type. | |
188 | * @iocb_cmnd : iocb command code. | |
189 | * | |
190 | * This function is called by ring event handler function to get the iocb type. | |
191 | * This function translates the iocb command to an iocb command type used to | |
192 | * decide the final disposition of each completed IOCB. | |
193 | * The function returns | |
194 | * LPFC_UNKNOWN_IOCB if it is an unsupported iocb | |
195 | * LPFC_SOL_IOCB if it is a solicited iocb completion | |
196 | * LPFC_ABORT_IOCB if it is an abort iocb | |
197 | * LPFC_UNSOL_IOCB if it is an unsolicited iocb | |
198 | * | |
199 | * The caller is not required to hold any lock. | |
200 | **/ | |
dea3101e JB |
201 | static lpfc_iocb_type |
202 | lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd) | |
203 | { | |
204 | lpfc_iocb_type type = LPFC_UNKNOWN_IOCB; | |
205 | ||
206 | if (iocb_cmnd > CMD_MAX_IOCB_CMD) | |
207 | return 0; | |
208 | ||
209 | switch (iocb_cmnd) { | |
210 | case CMD_XMIT_SEQUENCE_CR: | |
211 | case CMD_XMIT_SEQUENCE_CX: | |
212 | case CMD_XMIT_BCAST_CN: | |
213 | case CMD_XMIT_BCAST_CX: | |
214 | case CMD_ELS_REQUEST_CR: | |
215 | case CMD_ELS_REQUEST_CX: | |
216 | case CMD_CREATE_XRI_CR: | |
217 | case CMD_CREATE_XRI_CX: | |
218 | case CMD_GET_RPI_CN: | |
219 | case CMD_XMIT_ELS_RSP_CX: | |
220 | case CMD_GET_RPI_CR: | |
221 | case CMD_FCP_IWRITE_CR: | |
222 | case CMD_FCP_IWRITE_CX: | |
223 | case CMD_FCP_IREAD_CR: | |
224 | case CMD_FCP_IREAD_CX: | |
225 | case CMD_FCP_ICMND_CR: | |
226 | case CMD_FCP_ICMND_CX: | |
f5603511 JS |
227 | case CMD_FCP_TSEND_CX: |
228 | case CMD_FCP_TRSP_CX: | |
229 | case CMD_FCP_TRECEIVE_CX: | |
230 | case CMD_FCP_AUTO_TRSP_CX: | |
dea3101e JB |
231 | case CMD_ADAPTER_MSG: |
232 | case CMD_ADAPTER_DUMP: | |
233 | case CMD_XMIT_SEQUENCE64_CR: | |
234 | case CMD_XMIT_SEQUENCE64_CX: | |
235 | case CMD_XMIT_BCAST64_CN: | |
236 | case CMD_XMIT_BCAST64_CX: | |
237 | case CMD_ELS_REQUEST64_CR: | |
238 | case CMD_ELS_REQUEST64_CX: | |
239 | case CMD_FCP_IWRITE64_CR: | |
240 | case CMD_FCP_IWRITE64_CX: | |
241 | case CMD_FCP_IREAD64_CR: | |
242 | case CMD_FCP_IREAD64_CX: | |
243 | case CMD_FCP_ICMND64_CR: | |
244 | case CMD_FCP_ICMND64_CX: | |
f5603511 JS |
245 | case CMD_FCP_TSEND64_CX: |
246 | case CMD_FCP_TRSP64_CX: | |
247 | case CMD_FCP_TRECEIVE64_CX: | |
dea3101e JB |
248 | case CMD_GEN_REQUEST64_CR: |
249 | case CMD_GEN_REQUEST64_CX: | |
250 | case CMD_XMIT_ELS_RSP64_CX: | |
251 | type = LPFC_SOL_IOCB; | |
252 | break; | |
253 | case CMD_ABORT_XRI_CN: | |
254 | case CMD_ABORT_XRI_CX: | |
255 | case CMD_CLOSE_XRI_CN: | |
256 | case CMD_CLOSE_XRI_CX: | |
257 | case CMD_XRI_ABORTED_CX: | |
258 | case CMD_ABORT_MXRI64_CN: | |
259 | type = LPFC_ABORT_IOCB; | |
260 | break; | |
261 | case CMD_RCV_SEQUENCE_CX: | |
262 | case CMD_RCV_ELS_REQ_CX: | |
263 | case CMD_RCV_SEQUENCE64_CX: | |
264 | case CMD_RCV_ELS_REQ64_CX: | |
57127f15 | 265 | case CMD_ASYNC_STATUS: |
ed957684 JS |
266 | case CMD_IOCB_RCV_SEQ64_CX: |
267 | case CMD_IOCB_RCV_ELS64_CX: | |
268 | case CMD_IOCB_RCV_CONT64_CX: | |
3163f725 | 269 | case CMD_IOCB_RET_XRI64_CX: |
dea3101e JB |
270 | type = LPFC_UNSOL_IOCB; |
271 | break; | |
3163f725 JS |
272 | case CMD_IOCB_XMIT_MSEQ64_CR: |
273 | case CMD_IOCB_XMIT_MSEQ64_CX: | |
274 | case CMD_IOCB_RCV_SEQ_LIST64_CX: | |
275 | case CMD_IOCB_RCV_ELS_LIST64_CX: | |
276 | case CMD_IOCB_CLOSE_EXTENDED_CN: | |
277 | case CMD_IOCB_ABORT_EXTENDED_CN: | |
278 | case CMD_IOCB_RET_HBQE64_CN: | |
279 | case CMD_IOCB_FCP_IBIDIR64_CR: | |
280 | case CMD_IOCB_FCP_IBIDIR64_CX: | |
281 | case CMD_IOCB_FCP_ITASKMGT64_CX: | |
282 | case CMD_IOCB_LOGENTRY_CN: | |
283 | case CMD_IOCB_LOGENTRY_ASYNC_CN: | |
284 | printk("%s - Unhandled SLI-3 Command x%x\n", | |
cadbd4a5 | 285 | __func__, iocb_cmnd); |
3163f725 JS |
286 | type = LPFC_UNKNOWN_IOCB; |
287 | break; | |
dea3101e JB |
288 | default: |
289 | type = LPFC_UNKNOWN_IOCB; | |
290 | break; | |
291 | } | |
292 | ||
293 | return type; | |
294 | } | |
295 | ||
e59058c4 JS |
296 | /** |
297 | * lpfc_sli_ring_map: Issue config_ring mbox for all rings. | |
298 | * @phba: Pointer to HBA context object. | |
299 | * | |
300 | * This function is called from SLI initialization code | |
301 | * to configure every ring of the HBA's SLI interface. The | |
302 | * caller is not required to hold any lock. This function issues | |
303 | * a config_ring mailbox command for each ring. | |
304 | * This function returns zero if successful else returns a negative | |
305 | * error code. | |
306 | **/ | |
dea3101e | 307 | static int |
ed957684 | 308 | lpfc_sli_ring_map(struct lpfc_hba *phba) |
dea3101e JB |
309 | { |
310 | struct lpfc_sli *psli = &phba->sli; | |
ed957684 JS |
311 | LPFC_MBOXQ_t *pmb; |
312 | MAILBOX_t *pmbox; | |
313 | int i, rc, ret = 0; | |
dea3101e | 314 | |
ed957684 JS |
315 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
316 | if (!pmb) | |
317 | return -ENOMEM; | |
318 | pmbox = &pmb->mb; | |
319 | phba->link_state = LPFC_INIT_MBX_CMDS; | |
dea3101e | 320 | for (i = 0; i < psli->num_rings; i++) { |
dea3101e JB |
321 | lpfc_config_ring(phba, i, pmb); |
322 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
323 | if (rc != MBX_SUCCESS) { | |
92d7f7b0 | 324 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 325 | "0446 Adapter failed to init (%d), " |
dea3101e JB |
326 | "mbxCmd x%x CFG_RING, mbxStatus x%x, " |
327 | "ring %d\n", | |
e8b62011 JS |
328 | rc, pmbox->mbxCommand, |
329 | pmbox->mbxStatus, i); | |
2e0fef85 | 330 | phba->link_state = LPFC_HBA_ERROR; |
ed957684 JS |
331 | ret = -ENXIO; |
332 | break; | |
dea3101e JB |
333 | } |
334 | } | |
ed957684 JS |
335 | mempool_free(pmb, phba->mbox_mem_pool); |
336 | return ret; | |
dea3101e JB |
337 | } |
338 | ||
e59058c4 JS |
339 | /** |
340 | * lpfc_sli_ringtxcmpl_put: Adds new iocb to the txcmplq. | |
341 | * @phba: Pointer to HBA context object. | |
342 | * @pring: Pointer to driver SLI ring object. | |
343 | * @piocb: Pointer to the driver iocb object. | |
344 | * | |
345 | * This function is called with hbalock held. The function adds the | |
346 | * new iocb to txcmplq of the given ring. This function always returns | |
347 | * 0. If this function is called for ELS ring, this function checks if | |
348 | * there is a vport associated with the ELS command. This function also | |
349 | * starts els_tmofunc timer if this is an ELS command. | |
350 | **/ | |
dea3101e | 351 | static int |
2e0fef85 JS |
352 | lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
353 | struct lpfc_iocbq *piocb) | |
dea3101e | 354 | { |
dea3101e JB |
355 | list_add_tail(&piocb->list, &pring->txcmplq); |
356 | pring->txcmplq_cnt++; | |
92d7f7b0 JS |
357 | if ((unlikely(pring->ringno == LPFC_ELS_RING)) && |
358 | (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) && | |
359 | (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) { | |
360 | if (!piocb->vport) | |
361 | BUG(); | |
362 | else | |
363 | mod_timer(&piocb->vport->els_tmofunc, | |
364 | jiffies + HZ * (phba->fc_ratov << 1)); | |
365 | } | |
366 | ||
dea3101e | 367 | |
2e0fef85 | 368 | return 0; |
dea3101e JB |
369 | } |
370 | ||
e59058c4 JS |
371 | /** |
372 | * lpfc_sli_ringtx_get: Get first element of the txq. | |
373 | * @phba: Pointer to HBA context object. | |
374 | * @pring: Pointer to driver SLI ring object. | |
375 | * | |
376 | * This function is called with hbalock held to get next | |
377 | * iocb in txq of the given ring. If there is any iocb in | |
378 | * the txq, the function returns first iocb in the list after | |
379 | * removing the iocb from the list, else it returns NULL. | |
380 | **/ | |
dea3101e | 381 | static struct lpfc_iocbq * |
2e0fef85 | 382 | lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 383 | { |
dea3101e JB |
384 | struct lpfc_iocbq *cmd_iocb; |
385 | ||
858c9f6c JS |
386 | list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list); |
387 | if (cmd_iocb != NULL) | |
dea3101e | 388 | pring->txq_cnt--; |
2e0fef85 | 389 | return cmd_iocb; |
dea3101e JB |
390 | } |
391 | ||
e59058c4 JS |
392 | /** |
393 | * lpfc_sli_next_iocb_slot: Get next iocb slot in the ring. | |
394 | * @phba: Pointer to HBA context object. | |
395 | * @pring: Pointer to driver SLI ring object. | |
396 | * | |
397 | * This function is called with hbalock held and the caller must post the | |
398 | * iocb without releasing the lock. If the caller releases the lock, | |
399 | * iocb slot returned by the function is not guaranteed to be available. | |
400 | * The function returns pointer to the next available iocb slot if there | |
401 | * is available slot in the ring, else it returns NULL. | |
402 | * If the get index of the ring is ahead of the put index, the function | |
403 | * will post an error attention event to the worker thread to take the | |
404 | * HBA to offline state. | |
405 | **/ | |
dea3101e JB |
406 | static IOCB_t * |
407 | lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
408 | { | |
34b02dcd | 409 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
dea3101e | 410 | uint32_t max_cmd_idx = pring->numCiocb; |
dea3101e JB |
411 | if ((pring->next_cmdidx == pring->cmdidx) && |
412 | (++pring->next_cmdidx >= max_cmd_idx)) | |
413 | pring->next_cmdidx = 0; | |
414 | ||
415 | if (unlikely(pring->local_getidx == pring->next_cmdidx)) { | |
416 | ||
417 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
418 | ||
419 | if (unlikely(pring->local_getidx >= max_cmd_idx)) { | |
420 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 421 | "0315 Ring %d issue: portCmdGet %d " |
dea3101e | 422 | "is bigger then cmd ring %d\n", |
e8b62011 | 423 | pring->ringno, |
dea3101e JB |
424 | pring->local_getidx, max_cmd_idx); |
425 | ||
2e0fef85 | 426 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e JB |
427 | /* |
428 | * All error attention handlers are posted to | |
429 | * worker thread | |
430 | */ | |
431 | phba->work_ha |= HA_ERATT; | |
432 | phba->work_hs = HS_FFER3; | |
92d7f7b0 | 433 | |
5e9d9b82 | 434 | lpfc_worker_wake_up(phba); |
dea3101e JB |
435 | |
436 | return NULL; | |
437 | } | |
438 | ||
439 | if (pring->local_getidx == pring->next_cmdidx) | |
440 | return NULL; | |
441 | } | |
442 | ||
ed957684 | 443 | return lpfc_cmd_iocb(phba, pring); |
dea3101e JB |
444 | } |
445 | ||
e59058c4 JS |
446 | /** |
447 | * lpfc_sli_next_iotag: Get an iotag for the iocb. | |
448 | * @phba: Pointer to HBA context object. | |
449 | * @iocbq: Pointer to driver iocb object. | |
450 | * | |
451 | * This function gets an iotag for the iocb. If there is no unused iotag and | |
452 | * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup | |
453 | * array and assigns a new iotag. | |
454 | * The function returns the allocated iotag if successful, else returns zero. | |
455 | * Zero is not a valid iotag. | |
456 | * The caller is not required to hold any lock. | |
457 | **/ | |
604a3e30 | 458 | uint16_t |
2e0fef85 | 459 | lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) |
dea3101e | 460 | { |
2e0fef85 JS |
461 | struct lpfc_iocbq **new_arr; |
462 | struct lpfc_iocbq **old_arr; | |
604a3e30 JB |
463 | size_t new_len; |
464 | struct lpfc_sli *psli = &phba->sli; | |
465 | uint16_t iotag; | |
dea3101e | 466 | |
2e0fef85 | 467 | spin_lock_irq(&phba->hbalock); |
604a3e30 JB |
468 | iotag = psli->last_iotag; |
469 | if(++iotag < psli->iocbq_lookup_len) { | |
470 | psli->last_iotag = iotag; | |
471 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 472 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
473 | iocbq->iotag = iotag; |
474 | return iotag; | |
2e0fef85 | 475 | } else if (psli->iocbq_lookup_len < (0xffff |
604a3e30 JB |
476 | - LPFC_IOCBQ_LOOKUP_INCREMENT)) { |
477 | new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT; | |
2e0fef85 JS |
478 | spin_unlock_irq(&phba->hbalock); |
479 | new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *), | |
604a3e30 JB |
480 | GFP_KERNEL); |
481 | if (new_arr) { | |
2e0fef85 | 482 | spin_lock_irq(&phba->hbalock); |
604a3e30 JB |
483 | old_arr = psli->iocbq_lookup; |
484 | if (new_len <= psli->iocbq_lookup_len) { | |
485 | /* highly unprobable case */ | |
486 | kfree(new_arr); | |
487 | iotag = psli->last_iotag; | |
488 | if(++iotag < psli->iocbq_lookup_len) { | |
489 | psli->last_iotag = iotag; | |
490 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 491 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
492 | iocbq->iotag = iotag; |
493 | return iotag; | |
494 | } | |
2e0fef85 | 495 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
496 | return 0; |
497 | } | |
498 | if (psli->iocbq_lookup) | |
499 | memcpy(new_arr, old_arr, | |
500 | ((psli->last_iotag + 1) * | |
311464ec | 501 | sizeof (struct lpfc_iocbq *))); |
604a3e30 JB |
502 | psli->iocbq_lookup = new_arr; |
503 | psli->iocbq_lookup_len = new_len; | |
504 | psli->last_iotag = iotag; | |
505 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 506 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
507 | iocbq->iotag = iotag; |
508 | kfree(old_arr); | |
509 | return iotag; | |
510 | } | |
8f6d98d2 | 511 | } else |
2e0fef85 | 512 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 513 | |
604a3e30 | 514 | lpfc_printf_log(phba, KERN_ERR,LOG_SLI, |
e8b62011 JS |
515 | "0318 Failed to allocate IOTAG.last IOTAG is %d\n", |
516 | psli->last_iotag); | |
dea3101e | 517 | |
604a3e30 | 518 | return 0; |
dea3101e JB |
519 | } |
520 | ||
e59058c4 JS |
521 | /** |
522 | * lpfc_sli_submit_iocb: Submit an iocb to the firmware. | |
523 | * @phba: Pointer to HBA context object. | |
524 | * @pring: Pointer to driver SLI ring object. | |
525 | * @iocb: Pointer to iocb slot in the ring. | |
526 | * @nextiocb: Pointer to driver iocb object which need to be | |
527 | * posted to firmware. | |
528 | * | |
529 | * This function is called with hbalock held to post a new iocb to | |
530 | * the firmware. This function copies the new iocb to ring iocb slot and | |
531 | * updates the ring pointers. It adds the new iocb to txcmplq if there is | |
532 | * a completion call back for this iocb else the function will free the | |
533 | * iocb object. | |
534 | **/ | |
dea3101e JB |
535 | static void |
536 | lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
537 | IOCB_t *iocb, struct lpfc_iocbq *nextiocb) | |
538 | { | |
539 | /* | |
604a3e30 | 540 | * Set up an iotag |
dea3101e | 541 | */ |
604a3e30 | 542 | nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0; |
dea3101e | 543 | |
a58cbd52 JS |
544 | if (pring->ringno == LPFC_ELS_RING) { |
545 | lpfc_debugfs_slow_ring_trc(phba, | |
546 | "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x", | |
547 | *(((uint32_t *) &nextiocb->iocb) + 4), | |
548 | *(((uint32_t *) &nextiocb->iocb) + 6), | |
549 | *(((uint32_t *) &nextiocb->iocb) + 7)); | |
550 | } | |
551 | ||
dea3101e JB |
552 | /* |
553 | * Issue iocb command to adapter | |
554 | */ | |
92d7f7b0 | 555 | lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size); |
dea3101e JB |
556 | wmb(); |
557 | pring->stats.iocb_cmd++; | |
558 | ||
559 | /* | |
560 | * If there is no completion routine to call, we can release the | |
561 | * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF, | |
562 | * that have no rsp ring completion, iocb_cmpl MUST be NULL. | |
563 | */ | |
564 | if (nextiocb->iocb_cmpl) | |
565 | lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb); | |
604a3e30 | 566 | else |
2e0fef85 | 567 | __lpfc_sli_release_iocbq(phba, nextiocb); |
dea3101e JB |
568 | |
569 | /* | |
570 | * Let the HBA know what IOCB slot will be the next one the | |
571 | * driver will put a command into. | |
572 | */ | |
573 | pring->cmdidx = pring->next_cmdidx; | |
ed957684 | 574 | writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx); |
dea3101e JB |
575 | } |
576 | ||
e59058c4 JS |
577 | /** |
578 | * lpfc_sli_update_full_ring: Update the chip attention register. | |
579 | * @phba: Pointer to HBA context object. | |
580 | * @pring: Pointer to driver SLI ring object. | |
581 | * | |
582 | * The caller is not required to hold any lock for calling this function. | |
583 | * This function updates the chip attention bits for the ring to inform firmware | |
584 | * that there are pending work to be done for this ring and requests an | |
585 | * interrupt when there is space available in the ring. This function is | |
586 | * called when the driver is unable to post more iocbs to the ring due | |
587 | * to unavailability of space in the ring. | |
588 | **/ | |
dea3101e | 589 | static void |
2e0fef85 | 590 | lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e JB |
591 | { |
592 | int ringno = pring->ringno; | |
593 | ||
594 | pring->flag |= LPFC_CALL_RING_AVAILABLE; | |
595 | ||
596 | wmb(); | |
597 | ||
598 | /* | |
599 | * Set ring 'ringno' to SET R0CE_REQ in Chip Att register. | |
600 | * The HBA will tell us when an IOCB entry is available. | |
601 | */ | |
602 | writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr); | |
603 | readl(phba->CAregaddr); /* flush */ | |
604 | ||
605 | pring->stats.iocb_cmd_full++; | |
606 | } | |
607 | ||
e59058c4 JS |
608 | /** |
609 | * lpfc_sli_update_ring: Update chip attention register. | |
610 | * @phba: Pointer to HBA context object. | |
611 | * @pring: Pointer to driver SLI ring object. | |
612 | * | |
613 | * This function updates the chip attention register bit for the | |
614 | * given ring to inform HBA that there is more work to be done | |
615 | * in this ring. The caller is not required to hold any lock. | |
616 | **/ | |
dea3101e | 617 | static void |
2e0fef85 | 618 | lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e JB |
619 | { |
620 | int ringno = pring->ringno; | |
621 | ||
622 | /* | |
623 | * Tell the HBA that there is work to do in this ring. | |
624 | */ | |
34b02dcd JS |
625 | if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) { |
626 | wmb(); | |
627 | writel(CA_R0ATT << (ringno * 4), phba->CAregaddr); | |
628 | readl(phba->CAregaddr); /* flush */ | |
629 | } | |
dea3101e JB |
630 | } |
631 | ||
e59058c4 JS |
632 | /** |
633 | * lpfc_sli_resume_iocb: Process iocbs in the txq. | |
634 | * @phba: Pointer to HBA context object. | |
635 | * @pring: Pointer to driver SLI ring object. | |
636 | * | |
637 | * This function is called with hbalock held to post pending iocbs | |
638 | * in the txq to the firmware. This function is called when driver | |
639 | * detects space available in the ring. | |
640 | **/ | |
dea3101e | 641 | static void |
2e0fef85 | 642 | lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e JB |
643 | { |
644 | IOCB_t *iocb; | |
645 | struct lpfc_iocbq *nextiocb; | |
646 | ||
647 | /* | |
648 | * Check to see if: | |
649 | * (a) there is anything on the txq to send | |
650 | * (b) link is up | |
651 | * (c) link attention events can be processed (fcp ring only) | |
652 | * (d) IOCB processing is not blocked by the outstanding mbox command. | |
653 | */ | |
654 | if (pring->txq_cnt && | |
2e0fef85 | 655 | lpfc_is_link_up(phba) && |
dea3101e | 656 | (pring->ringno != phba->sli.fcp_ring || |
0b727fea | 657 | phba->sli.sli_flag & LPFC_PROCESS_LA)) { |
dea3101e JB |
658 | |
659 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && | |
660 | (nextiocb = lpfc_sli_ringtx_get(phba, pring))) | |
661 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
662 | ||
663 | if (iocb) | |
664 | lpfc_sli_update_ring(phba, pring); | |
665 | else | |
666 | lpfc_sli_update_full_ring(phba, pring); | |
667 | } | |
668 | ||
669 | return; | |
670 | } | |
671 | ||
e59058c4 JS |
672 | /** |
673 | * lpfc_sli_next_hbq_slot: Get next hbq entry for the HBQ. | |
674 | * @phba: Pointer to HBA context object. | |
675 | * @hbqno: HBQ number. | |
676 | * | |
677 | * This function is called with hbalock held to get the next | |
678 | * available slot for the given HBQ. If there is free slot | |
679 | * available for the HBQ it will return pointer to the next available | |
680 | * HBQ entry else it will return NULL. | |
681 | **/ | |
a6ababd2 | 682 | static struct lpfc_hbq_entry * |
ed957684 JS |
683 | lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno) |
684 | { | |
685 | struct hbq_s *hbqp = &phba->hbqs[hbqno]; | |
686 | ||
687 | if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx && | |
688 | ++hbqp->next_hbqPutIdx >= hbqp->entry_count) | |
689 | hbqp->next_hbqPutIdx = 0; | |
690 | ||
691 | if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) { | |
92d7f7b0 | 692 | uint32_t raw_index = phba->hbq_get[hbqno]; |
ed957684 JS |
693 | uint32_t getidx = le32_to_cpu(raw_index); |
694 | ||
695 | hbqp->local_hbqGetIdx = getidx; | |
696 | ||
697 | if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) { | |
698 | lpfc_printf_log(phba, KERN_ERR, | |
92d7f7b0 | 699 | LOG_SLI | LOG_VPORT, |
e8b62011 | 700 | "1802 HBQ %d: local_hbqGetIdx " |
ed957684 | 701 | "%u is > than hbqp->entry_count %u\n", |
e8b62011 | 702 | hbqno, hbqp->local_hbqGetIdx, |
ed957684 JS |
703 | hbqp->entry_count); |
704 | ||
705 | phba->link_state = LPFC_HBA_ERROR; | |
706 | return NULL; | |
707 | } | |
708 | ||
709 | if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx) | |
710 | return NULL; | |
711 | } | |
712 | ||
51ef4c26 JS |
713 | return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt + |
714 | hbqp->hbqPutIdx; | |
ed957684 JS |
715 | } |
716 | ||
e59058c4 JS |
717 | /** |
718 | * lpfc_sli_hbqbuf_free_all: Free all the hbq buffers. | |
719 | * @phba: Pointer to HBA context object. | |
720 | * | |
721 | * This function is called with no lock held to free all the | |
722 | * hbq buffers while uninitializing the SLI interface. It also | |
723 | * frees the HBQ buffers returned by the firmware but not yet | |
724 | * processed by the upper layers. | |
725 | **/ | |
ed957684 JS |
726 | void |
727 | lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba) | |
728 | { | |
92d7f7b0 JS |
729 | struct lpfc_dmabuf *dmabuf, *next_dmabuf; |
730 | struct hbq_dmabuf *hbq_buf; | |
3163f725 | 731 | unsigned long flags; |
51ef4c26 | 732 | int i, hbq_count; |
3163f725 | 733 | uint32_t hbqno; |
ed957684 | 734 | |
51ef4c26 | 735 | hbq_count = lpfc_sli_hbq_count(); |
ed957684 | 736 | /* Return all memory used by all HBQs */ |
3163f725 | 737 | spin_lock_irqsave(&phba->hbalock, flags); |
51ef4c26 JS |
738 | for (i = 0; i < hbq_count; ++i) { |
739 | list_for_each_entry_safe(dmabuf, next_dmabuf, | |
740 | &phba->hbqs[i].hbq_buffer_list, list) { | |
741 | hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf); | |
742 | list_del(&hbq_buf->dbuf.list); | |
743 | (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf); | |
744 | } | |
a8adb832 | 745 | phba->hbqs[i].buffer_count = 0; |
ed957684 | 746 | } |
3163f725 JS |
747 | /* Return all HBQ buffer that are in-fly */ |
748 | list_for_each_entry_safe(dmabuf, next_dmabuf, | |
749 | &phba->hbqbuf_in_list, list) { | |
750 | hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf); | |
751 | list_del(&hbq_buf->dbuf.list); | |
752 | if (hbq_buf->tag == -1) { | |
753 | (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer) | |
754 | (phba, hbq_buf); | |
755 | } else { | |
756 | hbqno = hbq_buf->tag >> 16; | |
757 | if (hbqno >= LPFC_MAX_HBQS) | |
758 | (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer) | |
759 | (phba, hbq_buf); | |
760 | else | |
761 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, | |
762 | hbq_buf); | |
763 | } | |
764 | } | |
765 | ||
766 | /* Mark the HBQs not in use */ | |
767 | phba->hbq_in_use = 0; | |
768 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
ed957684 JS |
769 | } |
770 | ||
e59058c4 JS |
771 | /** |
772 | * lpfc_sli_hbq_to_firmware: Post the hbq buffer to firmware. | |
773 | * @phba: Pointer to HBA context object. | |
774 | * @hbqno: HBQ number. | |
775 | * @hbq_buf: Pointer to HBQ buffer. | |
776 | * | |
777 | * This function is called with the hbalock held to post a | |
778 | * hbq buffer to the firmware. If the function finds an empty | |
779 | * slot in the HBQ, it will post the buffer. The function will return | |
780 | * pointer to the hbq entry if it successfully post the buffer | |
781 | * else it will return NULL. | |
782 | **/ | |
51ef4c26 | 783 | static struct lpfc_hbq_entry * |
ed957684 | 784 | lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno, |
92d7f7b0 | 785 | struct hbq_dmabuf *hbq_buf) |
ed957684 JS |
786 | { |
787 | struct lpfc_hbq_entry *hbqe; | |
92d7f7b0 | 788 | dma_addr_t physaddr = hbq_buf->dbuf.phys; |
ed957684 JS |
789 | |
790 | /* Get next HBQ entry slot to use */ | |
791 | hbqe = lpfc_sli_next_hbq_slot(phba, hbqno); | |
792 | if (hbqe) { | |
793 | struct hbq_s *hbqp = &phba->hbqs[hbqno]; | |
794 | ||
92d7f7b0 JS |
795 | hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr)); |
796 | hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr)); | |
51ef4c26 | 797 | hbqe->bde.tus.f.bdeSize = hbq_buf->size; |
ed957684 | 798 | hbqe->bde.tus.f.bdeFlags = 0; |
92d7f7b0 JS |
799 | hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w); |
800 | hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag); | |
801 | /* Sync SLIM */ | |
ed957684 JS |
802 | hbqp->hbqPutIdx = hbqp->next_hbqPutIdx; |
803 | writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno); | |
92d7f7b0 | 804 | /* flush */ |
ed957684 | 805 | readl(phba->hbq_put + hbqno); |
51ef4c26 | 806 | list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list); |
ed957684 | 807 | } |
51ef4c26 | 808 | return hbqe; |
ed957684 JS |
809 | } |
810 | ||
e59058c4 | 811 | /* HBQ for ELS and CT traffic. */ |
92d7f7b0 JS |
812 | static struct lpfc_hbq_init lpfc_els_hbq = { |
813 | .rn = 1, | |
814 | .entry_count = 200, | |
815 | .mask_count = 0, | |
816 | .profile = 0, | |
51ef4c26 | 817 | .ring_mask = (1 << LPFC_ELS_RING), |
92d7f7b0 JS |
818 | .buffer_count = 0, |
819 | .init_count = 20, | |
820 | .add_count = 5, | |
821 | }; | |
ed957684 | 822 | |
e59058c4 | 823 | /* HBQ for the extra ring if needed */ |
51ef4c26 JS |
824 | static struct lpfc_hbq_init lpfc_extra_hbq = { |
825 | .rn = 1, | |
826 | .entry_count = 200, | |
827 | .mask_count = 0, | |
828 | .profile = 0, | |
829 | .ring_mask = (1 << LPFC_EXTRA_RING), | |
830 | .buffer_count = 0, | |
831 | .init_count = 0, | |
832 | .add_count = 5, | |
833 | }; | |
834 | ||
e59058c4 | 835 | /* Array of HBQs */ |
78b2d852 | 836 | struct lpfc_hbq_init *lpfc_hbq_defs[] = { |
92d7f7b0 | 837 | &lpfc_els_hbq, |
51ef4c26 | 838 | &lpfc_extra_hbq, |
92d7f7b0 | 839 | }; |
ed957684 | 840 | |
e59058c4 JS |
841 | /** |
842 | * lpfc_sli_hbqbuf_fill_hbqs: Post more hbq buffers to HBQ. | |
843 | * @phba: Pointer to HBA context object. | |
844 | * @hbqno: HBQ number. | |
845 | * @count: Number of HBQ buffers to be posted. | |
846 | * | |
d7c255b2 JS |
847 | * This function is called with no lock held to post more hbq buffers to the |
848 | * given HBQ. The function returns the number of HBQ buffers successfully | |
849 | * posted. | |
e59058c4 | 850 | **/ |
311464ec | 851 | static int |
92d7f7b0 | 852 | lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count) |
ed957684 | 853 | { |
d7c255b2 | 854 | uint32_t i, posted = 0; |
3163f725 | 855 | unsigned long flags; |
92d7f7b0 | 856 | struct hbq_dmabuf *hbq_buffer; |
d7c255b2 | 857 | LIST_HEAD(hbq_buf_list); |
eafe1df9 | 858 | if (!phba->hbqs[hbqno].hbq_alloc_buffer) |
51ef4c26 | 859 | return 0; |
51ef4c26 | 860 | |
d7c255b2 JS |
861 | if ((phba->hbqs[hbqno].buffer_count + count) > |
862 | lpfc_hbq_defs[hbqno]->entry_count) | |
863 | count = lpfc_hbq_defs[hbqno]->entry_count - | |
864 | phba->hbqs[hbqno].buffer_count; | |
865 | if (!count) | |
866 | return 0; | |
867 | /* Allocate HBQ entries */ | |
868 | for (i = 0; i < count; i++) { | |
869 | hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba); | |
870 | if (!hbq_buffer) | |
871 | break; | |
872 | list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list); | |
873 | } | |
3163f725 JS |
874 | /* Check whether HBQ is still in use */ |
875 | spin_lock_irqsave(&phba->hbalock, flags); | |
eafe1df9 | 876 | if (!phba->hbq_in_use) |
d7c255b2 JS |
877 | goto err; |
878 | while (!list_empty(&hbq_buf_list)) { | |
879 | list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf, | |
880 | dbuf.list); | |
881 | hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count | | |
882 | (hbqno << 16)); | |
883 | if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) { | |
a8adb832 | 884 | phba->hbqs[hbqno].buffer_count++; |
d7c255b2 JS |
885 | posted++; |
886 | } else | |
51ef4c26 | 887 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); |
ed957684 | 888 | } |
3163f725 | 889 | spin_unlock_irqrestore(&phba->hbalock, flags); |
d7c255b2 JS |
890 | return posted; |
891 | err: | |
eafe1df9 | 892 | spin_unlock_irqrestore(&phba->hbalock, flags); |
d7c255b2 JS |
893 | while (!list_empty(&hbq_buf_list)) { |
894 | list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf, | |
895 | dbuf.list); | |
896 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); | |
897 | } | |
898 | return 0; | |
ed957684 JS |
899 | } |
900 | ||
e59058c4 JS |
901 | /** |
902 | * lpfc_sli_hbqbuf_add_hbqs: Post more HBQ buffers to firmware. | |
903 | * @phba: Pointer to HBA context object. | |
904 | * @qno: HBQ number. | |
905 | * | |
906 | * This function posts more buffers to the HBQ. This function | |
d7c255b2 JS |
907 | * is called with no lock held. The function returns the number of HBQ entries |
908 | * successfully allocated. | |
e59058c4 | 909 | **/ |
92d7f7b0 JS |
910 | int |
911 | lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno) | |
ed957684 | 912 | { |
92d7f7b0 JS |
913 | return(lpfc_sli_hbqbuf_fill_hbqs(phba, qno, |
914 | lpfc_hbq_defs[qno]->add_count)); | |
915 | } | |
ed957684 | 916 | |
e59058c4 JS |
917 | /** |
918 | * lpfc_sli_hbqbuf_init_hbqs: Post initial buffers to the HBQ. | |
919 | * @phba: Pointer to HBA context object. | |
920 | * @qno: HBQ queue number. | |
921 | * | |
922 | * This function is called from SLI initialization code path with | |
923 | * no lock held to post initial HBQ buffers to firmware. The | |
d7c255b2 | 924 | * function returns the number of HBQ entries successfully allocated. |
e59058c4 | 925 | **/ |
a6ababd2 | 926 | static int |
92d7f7b0 JS |
927 | lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno) |
928 | { | |
929 | return(lpfc_sli_hbqbuf_fill_hbqs(phba, qno, | |
930 | lpfc_hbq_defs[qno]->init_count)); | |
ed957684 JS |
931 | } |
932 | ||
e59058c4 JS |
933 | /** |
934 | * lpfc_sli_hbqbuf_find: Find the hbq buffer associated with a tag. | |
935 | * @phba: Pointer to HBA context object. | |
936 | * @tag: Tag of the hbq buffer. | |
937 | * | |
938 | * This function is called with hbalock held. This function searches | |
939 | * for the hbq buffer associated with the given tag in the hbq buffer | |
940 | * list. If it finds the hbq buffer, it returns the hbq_buffer other wise | |
941 | * it returns NULL. | |
942 | **/ | |
a6ababd2 | 943 | static struct hbq_dmabuf * |
92d7f7b0 | 944 | lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag) |
ed957684 | 945 | { |
92d7f7b0 JS |
946 | struct lpfc_dmabuf *d_buf; |
947 | struct hbq_dmabuf *hbq_buf; | |
51ef4c26 JS |
948 | uint32_t hbqno; |
949 | ||
950 | hbqno = tag >> 16; | |
a0a74e45 | 951 | if (hbqno >= LPFC_MAX_HBQS) |
51ef4c26 | 952 | return NULL; |
ed957684 | 953 | |
51ef4c26 | 954 | list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) { |
92d7f7b0 | 955 | hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); |
51ef4c26 | 956 | if (hbq_buf->tag == tag) { |
92d7f7b0 | 957 | return hbq_buf; |
ed957684 JS |
958 | } |
959 | } | |
92d7f7b0 | 960 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT, |
e8b62011 | 961 | "1803 Bad hbq tag. Data: x%x x%x\n", |
a8adb832 | 962 | tag, phba->hbqs[tag >> 16].buffer_count); |
92d7f7b0 | 963 | return NULL; |
ed957684 JS |
964 | } |
965 | ||
e59058c4 JS |
966 | /** |
967 | * lpfc_sli_free_hbq: Give back the hbq buffer to firmware. | |
968 | * @phba: Pointer to HBA context object. | |
969 | * @hbq_buffer: Pointer to HBQ buffer. | |
970 | * | |
971 | * This function is called with hbalock. This function gives back | |
972 | * the hbq buffer to firmware. If the HBQ does not have space to | |
973 | * post the buffer, it will free the buffer. | |
974 | **/ | |
ed957684 | 975 | void |
51ef4c26 | 976 | lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer) |
ed957684 JS |
977 | { |
978 | uint32_t hbqno; | |
979 | ||
51ef4c26 JS |
980 | if (hbq_buffer) { |
981 | hbqno = hbq_buffer->tag >> 16; | |
982 | if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) { | |
983 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); | |
984 | } | |
ed957684 JS |
985 | } |
986 | } | |
987 | ||
e59058c4 JS |
988 | /** |
989 | * lpfc_sli_chk_mbx_command: Check if the mailbox is a legitimate mailbox. | |
990 | * @mbxCommand: mailbox command code. | |
991 | * | |
992 | * This function is called by the mailbox event handler function to verify | |
993 | * that the completed mailbox command is a legitimate mailbox command. If the | |
994 | * completed mailbox is not known to the function, it will return MBX_SHUTDOWN | |
995 | * and the mailbox event handler will take the HBA offline. | |
996 | **/ | |
dea3101e JB |
997 | static int |
998 | lpfc_sli_chk_mbx_command(uint8_t mbxCommand) | |
999 | { | |
1000 | uint8_t ret; | |
1001 | ||
1002 | switch (mbxCommand) { | |
1003 | case MBX_LOAD_SM: | |
1004 | case MBX_READ_NV: | |
1005 | case MBX_WRITE_NV: | |
a8adb832 | 1006 | case MBX_WRITE_VPARMS: |
dea3101e JB |
1007 | case MBX_RUN_BIU_DIAG: |
1008 | case MBX_INIT_LINK: | |
1009 | case MBX_DOWN_LINK: | |
1010 | case MBX_CONFIG_LINK: | |
1011 | case MBX_CONFIG_RING: | |
1012 | case MBX_RESET_RING: | |
1013 | case MBX_READ_CONFIG: | |
1014 | case MBX_READ_RCONFIG: | |
1015 | case MBX_READ_SPARM: | |
1016 | case MBX_READ_STATUS: | |
1017 | case MBX_READ_RPI: | |
1018 | case MBX_READ_XRI: | |
1019 | case MBX_READ_REV: | |
1020 | case MBX_READ_LNK_STAT: | |
1021 | case MBX_REG_LOGIN: | |
1022 | case MBX_UNREG_LOGIN: | |
1023 | case MBX_READ_LA: | |
1024 | case MBX_CLEAR_LA: | |
1025 | case MBX_DUMP_MEMORY: | |
1026 | case MBX_DUMP_CONTEXT: | |
1027 | case MBX_RUN_DIAGS: | |
1028 | case MBX_RESTART: | |
1029 | case MBX_UPDATE_CFG: | |
1030 | case MBX_DOWN_LOAD: | |
1031 | case MBX_DEL_LD_ENTRY: | |
1032 | case MBX_RUN_PROGRAM: | |
1033 | case MBX_SET_MASK: | |
09372820 | 1034 | case MBX_SET_VARIABLE: |
dea3101e | 1035 | case MBX_UNREG_D_ID: |
41415862 | 1036 | case MBX_KILL_BOARD: |
dea3101e | 1037 | case MBX_CONFIG_FARP: |
41415862 | 1038 | case MBX_BEACON: |
dea3101e JB |
1039 | case MBX_LOAD_AREA: |
1040 | case MBX_RUN_BIU_DIAG64: | |
1041 | case MBX_CONFIG_PORT: | |
1042 | case MBX_READ_SPARM64: | |
1043 | case MBX_READ_RPI64: | |
1044 | case MBX_REG_LOGIN64: | |
1045 | case MBX_READ_LA64: | |
09372820 | 1046 | case MBX_WRITE_WWN: |
dea3101e JB |
1047 | case MBX_SET_DEBUG: |
1048 | case MBX_LOAD_EXP_ROM: | |
57127f15 | 1049 | case MBX_ASYNCEVT_ENABLE: |
92d7f7b0 JS |
1050 | case MBX_REG_VPI: |
1051 | case MBX_UNREG_VPI: | |
858c9f6c | 1052 | case MBX_HEARTBEAT: |
84774a4d JS |
1053 | case MBX_PORT_CAPABILITIES: |
1054 | case MBX_PORT_IOV_CONTROL: | |
dea3101e JB |
1055 | ret = mbxCommand; |
1056 | break; | |
1057 | default: | |
1058 | ret = MBX_SHUTDOWN; | |
1059 | break; | |
1060 | } | |
2e0fef85 | 1061 | return ret; |
dea3101e | 1062 | } |
e59058c4 JS |
1063 | |
1064 | /** | |
1065 | * lpfc_sli_wake_mbox_wait: Completion handler for mbox issued from | |
1066 | * lpfc_sli_issue_mbox_wait. | |
1067 | * @phba: Pointer to HBA context object. | |
1068 | * @pmboxq: Pointer to mailbox command. | |
1069 | * | |
1070 | * This is completion handler function for mailbox commands issued from | |
1071 | * lpfc_sli_issue_mbox_wait function. This function is called by the | |
1072 | * mailbox event handler function with no lock held. This function | |
1073 | * will wake up thread waiting on the wait queue pointed by context1 | |
1074 | * of the mailbox. | |
1075 | **/ | |
dea3101e | 1076 | static void |
2e0fef85 | 1077 | lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) |
dea3101e JB |
1078 | { |
1079 | wait_queue_head_t *pdone_q; | |
858c9f6c | 1080 | unsigned long drvr_flag; |
dea3101e JB |
1081 | |
1082 | /* | |
1083 | * If pdone_q is empty, the driver thread gave up waiting and | |
1084 | * continued running. | |
1085 | */ | |
7054a606 | 1086 | pmboxq->mbox_flag |= LPFC_MBX_WAKE; |
858c9f6c | 1087 | spin_lock_irqsave(&phba->hbalock, drvr_flag); |
dea3101e JB |
1088 | pdone_q = (wait_queue_head_t *) pmboxq->context1; |
1089 | if (pdone_q) | |
1090 | wake_up_interruptible(pdone_q); | |
858c9f6c | 1091 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e JB |
1092 | return; |
1093 | } | |
1094 | ||
e59058c4 JS |
1095 | |
1096 | /** | |
1097 | * lpfc_sli_def_mbox_cmpl: Default mailbox completion handler. | |
1098 | * @phba: Pointer to HBA context object. | |
1099 | * @pmb: Pointer to mailbox object. | |
1100 | * | |
1101 | * This function is the default mailbox completion handler. It | |
1102 | * frees the memory resources associated with the completed mailbox | |
1103 | * command. If the completed command is a REG_LOGIN mailbox command, | |
1104 | * this function will issue a UREG_LOGIN to re-claim the RPI. | |
1105 | **/ | |
dea3101e | 1106 | void |
2e0fef85 | 1107 | lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
dea3101e JB |
1108 | { |
1109 | struct lpfc_dmabuf *mp; | |
7054a606 JS |
1110 | uint16_t rpi; |
1111 | int rc; | |
1112 | ||
dea3101e | 1113 | mp = (struct lpfc_dmabuf *) (pmb->context1); |
7054a606 | 1114 | |
dea3101e JB |
1115 | if (mp) { |
1116 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
1117 | kfree(mp); | |
1118 | } | |
7054a606 JS |
1119 | |
1120 | /* | |
1121 | * If a REG_LOGIN succeeded after node is destroyed or node | |
1122 | * is in re-discovery driver need to cleanup the RPI. | |
1123 | */ | |
2e0fef85 JS |
1124 | if (!(phba->pport->load_flag & FC_UNLOADING) && |
1125 | pmb->mb.mbxCommand == MBX_REG_LOGIN64 && | |
1126 | !pmb->mb.mbxStatus) { | |
7054a606 JS |
1127 | |
1128 | rpi = pmb->mb.un.varWords[0]; | |
92d7f7b0 JS |
1129 | lpfc_unreg_login(phba, pmb->mb.un.varRegLogin.vpi, rpi, pmb); |
1130 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
7054a606 JS |
1131 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
1132 | if (rc != MBX_NOT_FINISHED) | |
1133 | return; | |
1134 | } | |
1135 | ||
2e0fef85 | 1136 | mempool_free(pmb, phba->mbox_mem_pool); |
dea3101e JB |
1137 | return; |
1138 | } | |
1139 | ||
e59058c4 JS |
1140 | /** |
1141 | * lpfc_sli_handle_mb_event: Handle mailbox completions from firmware. | |
1142 | * @phba: Pointer to HBA context object. | |
1143 | * | |
1144 | * This function is called with no lock held. This function processes all | |
1145 | * the completed mailbox commands and gives it to upper layers. The interrupt | |
1146 | * service routine processes mailbox completion interrupt and adds completed | |
1147 | * mailbox commands to the mboxq_cmpl queue and signals the worker thread. | |
1148 | * Worker thread call lpfc_sli_handle_mb_event, which will return the | |
1149 | * completed mailbox commands in mboxq_cmpl queue to the upper layers. This | |
1150 | * function returns the mailbox commands to the upper layer by calling the | |
1151 | * completion handler function of each mailbox. | |
1152 | **/ | |
dea3101e | 1153 | int |
2e0fef85 | 1154 | lpfc_sli_handle_mb_event(struct lpfc_hba *phba) |
dea3101e | 1155 | { |
92d7f7b0 | 1156 | MAILBOX_t *pmbox; |
dea3101e | 1157 | LPFC_MBOXQ_t *pmb; |
92d7f7b0 JS |
1158 | int rc; |
1159 | LIST_HEAD(cmplq); | |
dea3101e JB |
1160 | |
1161 | phba->sli.slistat.mbox_event++; | |
1162 | ||
92d7f7b0 JS |
1163 | /* Get all completed mailboxe buffers into the cmplq */ |
1164 | spin_lock_irq(&phba->hbalock); | |
1165 | list_splice_init(&phba->sli.mboxq_cmpl, &cmplq); | |
1166 | spin_unlock_irq(&phba->hbalock); | |
dea3101e | 1167 | |
92d7f7b0 JS |
1168 | /* Get a Mailbox buffer to setup mailbox commands for callback */ |
1169 | do { | |
1170 | list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list); | |
1171 | if (pmb == NULL) | |
1172 | break; | |
2e0fef85 | 1173 | |
92d7f7b0 | 1174 | pmbox = &pmb->mb; |
dea3101e | 1175 | |
858c9f6c JS |
1176 | if (pmbox->mbxCommand != MBX_HEARTBEAT) { |
1177 | if (pmb->vport) { | |
1178 | lpfc_debugfs_disc_trc(pmb->vport, | |
1179 | LPFC_DISC_TRC_MBOX_VPORT, | |
1180 | "MBOX cmpl vport: cmd:x%x mb:x%x x%x", | |
1181 | (uint32_t)pmbox->mbxCommand, | |
1182 | pmbox->un.varWords[0], | |
1183 | pmbox->un.varWords[1]); | |
1184 | } | |
1185 | else { | |
1186 | lpfc_debugfs_disc_trc(phba->pport, | |
1187 | LPFC_DISC_TRC_MBOX, | |
1188 | "MBOX cmpl: cmd:x%x mb:x%x x%x", | |
1189 | (uint32_t)pmbox->mbxCommand, | |
1190 | pmbox->un.varWords[0], | |
1191 | pmbox->un.varWords[1]); | |
1192 | } | |
1193 | } | |
1194 | ||
dea3101e JB |
1195 | /* |
1196 | * It is a fatal error if unknown mbox command completion. | |
1197 | */ | |
1198 | if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) == | |
1199 | MBX_SHUTDOWN) { | |
dea3101e | 1200 | /* Unknow mailbox command compl */ |
92d7f7b0 | 1201 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
e8b62011 | 1202 | "(%d):0323 Unknown Mailbox command " |
92d7f7b0 | 1203 | "%x Cmpl\n", |
92d7f7b0 JS |
1204 | pmb->vport ? pmb->vport->vpi : 0, |
1205 | pmbox->mbxCommand); | |
2e0fef85 | 1206 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e JB |
1207 | phba->work_hs = HS_FFER3; |
1208 | lpfc_handle_eratt(phba); | |
92d7f7b0 | 1209 | continue; |
dea3101e JB |
1210 | } |
1211 | ||
dea3101e JB |
1212 | if (pmbox->mbxStatus) { |
1213 | phba->sli.slistat.mbox_stat_err++; | |
1214 | if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) { | |
1215 | /* Mbox cmd cmpl error - RETRYing */ | |
92d7f7b0 JS |
1216 | lpfc_printf_log(phba, KERN_INFO, |
1217 | LOG_MBOX | LOG_SLI, | |
e8b62011 | 1218 | "(%d):0305 Mbox cmd cmpl " |
92d7f7b0 JS |
1219 | "error - RETRYing Data: x%x " |
1220 | "x%x x%x x%x\n", | |
92d7f7b0 JS |
1221 | pmb->vport ? pmb->vport->vpi :0, |
1222 | pmbox->mbxCommand, | |
1223 | pmbox->mbxStatus, | |
1224 | pmbox->un.varWords[0], | |
1225 | pmb->vport->port_state); | |
dea3101e JB |
1226 | pmbox->mbxStatus = 0; |
1227 | pmbox->mbxOwner = OWN_HOST; | |
2e0fef85 | 1228 | spin_lock_irq(&phba->hbalock); |
dea3101e | 1229 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 1230 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
1231 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
1232 | if (rc == MBX_SUCCESS) | |
92d7f7b0 | 1233 | continue; |
dea3101e JB |
1234 | } |
1235 | } | |
1236 | ||
1237 | /* Mailbox cmd <cmd> Cmpl <cmpl> */ | |
92d7f7b0 | 1238 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
e8b62011 | 1239 | "(%d):0307 Mailbox cmd x%x Cmpl x%p " |
dea3101e | 1240 | "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n", |
92d7f7b0 | 1241 | pmb->vport ? pmb->vport->vpi : 0, |
dea3101e JB |
1242 | pmbox->mbxCommand, |
1243 | pmb->mbox_cmpl, | |
1244 | *((uint32_t *) pmbox), | |
1245 | pmbox->un.varWords[0], | |
1246 | pmbox->un.varWords[1], | |
1247 | pmbox->un.varWords[2], | |
1248 | pmbox->un.varWords[3], | |
1249 | pmbox->un.varWords[4], | |
1250 | pmbox->un.varWords[5], | |
1251 | pmbox->un.varWords[6], | |
1252 | pmbox->un.varWords[7]); | |
1253 | ||
92d7f7b0 | 1254 | if (pmb->mbox_cmpl) |
dea3101e | 1255 | pmb->mbox_cmpl(phba,pmb); |
92d7f7b0 JS |
1256 | } while (1); |
1257 | return 0; | |
1258 | } | |
dea3101e | 1259 | |
e59058c4 JS |
1260 | /** |
1261 | * lpfc_sli_replace_hbqbuff: Replace the HBQ buffer with a new buffer. | |
1262 | * @phba: Pointer to HBA context object. | |
1263 | * @tag: Tag for the HBQ buffer. | |
1264 | * | |
1265 | * This function is called from unsolicited event handler code path to get the | |
1266 | * HBQ buffer associated with an unsolicited iocb. This function is called with | |
1267 | * no lock held. It returns the buffer associated with the given tag and posts | |
d7c255b2 JS |
1268 | * another buffer to the firmware. Note that the new buffer must be allocated |
1269 | * before taking the hbalock and that the hba lock must be held until it is | |
1270 | * finished with the hbq entry swap. | |
e59058c4 | 1271 | **/ |
92d7f7b0 JS |
1272 | static struct lpfc_dmabuf * |
1273 | lpfc_sli_replace_hbqbuff(struct lpfc_hba *phba, uint32_t tag) | |
1274 | { | |
1275 | struct hbq_dmabuf *hbq_entry, *new_hbq_entry; | |
51ef4c26 JS |
1276 | uint32_t hbqno; |
1277 | void *virt; /* virtual address ptr */ | |
1278 | dma_addr_t phys; /* mapped address */ | |
3163f725 JS |
1279 | unsigned long flags; |
1280 | ||
d7c255b2 JS |
1281 | hbqno = tag >> 16; |
1282 | new_hbq_entry = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba); | |
3163f725 JS |
1283 | /* Check whether HBQ is still in use */ |
1284 | spin_lock_irqsave(&phba->hbalock, flags); | |
1285 | if (!phba->hbq_in_use) { | |
d7c255b2 JS |
1286 | if (new_hbq_entry) |
1287 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, | |
1288 | new_hbq_entry); | |
3163f725 JS |
1289 | spin_unlock_irqrestore(&phba->hbalock, flags); |
1290 | return NULL; | |
1291 | } | |
dea3101e | 1292 | |
92d7f7b0 | 1293 | hbq_entry = lpfc_sli_hbqbuf_find(phba, tag); |
3163f725 | 1294 | if (hbq_entry == NULL) { |
d7c255b2 JS |
1295 | if (new_hbq_entry) |
1296 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, | |
1297 | new_hbq_entry); | |
3163f725 | 1298 | spin_unlock_irqrestore(&phba->hbalock, flags); |
92d7f7b0 | 1299 | return NULL; |
3163f725 | 1300 | } |
92d7f7b0 | 1301 | list_del(&hbq_entry->dbuf.list); |
51ef4c26 | 1302 | |
3163f725 JS |
1303 | if (new_hbq_entry == NULL) { |
1304 | list_add_tail(&hbq_entry->dbuf.list, &phba->hbqbuf_in_list); | |
1305 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
92d7f7b0 | 1306 | return &hbq_entry->dbuf; |
3163f725 | 1307 | } |
92d7f7b0 | 1308 | new_hbq_entry->tag = -1; |
51ef4c26 JS |
1309 | phys = new_hbq_entry->dbuf.phys; |
1310 | virt = new_hbq_entry->dbuf.virt; | |
1311 | new_hbq_entry->dbuf.phys = hbq_entry->dbuf.phys; | |
1312 | new_hbq_entry->dbuf.virt = hbq_entry->dbuf.virt; | |
1313 | hbq_entry->dbuf.phys = phys; | |
1314 | hbq_entry->dbuf.virt = virt; | |
92d7f7b0 | 1315 | lpfc_sli_free_hbq(phba, hbq_entry); |
3163f725 JS |
1316 | list_add_tail(&new_hbq_entry->dbuf.list, &phba->hbqbuf_in_list); |
1317 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
1318 | ||
92d7f7b0 | 1319 | return &new_hbq_entry->dbuf; |
dea3101e | 1320 | } |
92d7f7b0 | 1321 | |
e59058c4 JS |
1322 | /** |
1323 | * lpfc_sli_get_buff: Get the buffer associated with the buffer tag. | |
1324 | * @phba: Pointer to HBA context object. | |
1325 | * @pring: Pointer to driver SLI ring object. | |
1326 | * @tag: buffer tag. | |
1327 | * | |
1328 | * This function is called with no lock held. When QUE_BUFTAG_BIT bit | |
1329 | * is set in the tag the buffer is posted for a particular exchange, | |
1330 | * the function will return the buffer without replacing the buffer. | |
1331 | * If the buffer is for unsolicited ELS or CT traffic, this function | |
1332 | * returns the buffer and also posts another buffer to the firmware. | |
1333 | **/ | |
76bb24ef JS |
1334 | static struct lpfc_dmabuf * |
1335 | lpfc_sli_get_buff(struct lpfc_hba *phba, | |
1336 | struct lpfc_sli_ring *pring, | |
1337 | uint32_t tag) | |
1338 | { | |
1339 | if (tag & QUE_BUFTAG_BIT) | |
1340 | return lpfc_sli_ring_taggedbuf_get(phba, pring, tag); | |
1341 | else | |
1342 | return lpfc_sli_replace_hbqbuff(phba, tag); | |
1343 | } | |
57127f15 | 1344 | |
e59058c4 JS |
1345 | |
1346 | /** | |
1347 | * lpfc_sli_process_unsol_iocb: Unsolicited iocb handler. | |
1348 | * @phba: Pointer to HBA context object. | |
1349 | * @pring: Pointer to driver SLI ring object. | |
1350 | * @saveq: Pointer to the unsolicited iocb. | |
1351 | * | |
1352 | * This function is called with no lock held by the ring event handler | |
1353 | * when there is an unsolicited iocb posted to the response ring by the | |
1354 | * firmware. This function gets the buffer associated with the iocbs | |
1355 | * and calls the event handler for the ring. This function handles both | |
1356 | * qring buffers and hbq buffers. | |
1357 | * When the function returns 1 the caller can free the iocb object otherwise | |
1358 | * upper layer functions will free the iocb objects. | |
1359 | **/ | |
dea3101e JB |
1360 | static int |
1361 | lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
1362 | struct lpfc_iocbq *saveq) | |
1363 | { | |
1364 | IOCB_t * irsp; | |
1365 | WORD5 * w5p; | |
1366 | uint32_t Rctl, Type; | |
1367 | uint32_t match, i; | |
76bb24ef | 1368 | struct lpfc_iocbq *iocbq; |
3163f725 | 1369 | struct lpfc_dmabuf *dmzbuf; |
dea3101e JB |
1370 | |
1371 | match = 0; | |
1372 | irsp = &(saveq->iocb); | |
57127f15 | 1373 | |
9c2face6 JS |
1374 | if (irsp->ulpStatus == IOSTAT_NEED_BUFFER) |
1375 | return 1; | |
57127f15 JS |
1376 | if (irsp->ulpCommand == CMD_ASYNC_STATUS) { |
1377 | if (pring->lpfc_sli_rcv_async_status) | |
1378 | pring->lpfc_sli_rcv_async_status(phba, pring, saveq); | |
1379 | else | |
1380 | lpfc_printf_log(phba, | |
1381 | KERN_WARNING, | |
1382 | LOG_SLI, | |
1383 | "0316 Ring %d handler: unexpected " | |
1384 | "ASYNC_STATUS iocb received evt_code " | |
1385 | "0x%x\n", | |
1386 | pring->ringno, | |
1387 | irsp->un.asyncstat.evt_code); | |
1388 | return 1; | |
1389 | } | |
1390 | ||
3163f725 JS |
1391 | if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) && |
1392 | (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) { | |
1393 | if (irsp->ulpBdeCount > 0) { | |
1394 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
1395 | irsp->un.ulpWord[3]); | |
1396 | lpfc_in_buf_free(phba, dmzbuf); | |
1397 | } | |
1398 | ||
1399 | if (irsp->ulpBdeCount > 1) { | |
1400 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
1401 | irsp->unsli3.sli3Words[3]); | |
1402 | lpfc_in_buf_free(phba, dmzbuf); | |
1403 | } | |
1404 | ||
1405 | if (irsp->ulpBdeCount > 2) { | |
1406 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
1407 | irsp->unsli3.sli3Words[7]); | |
1408 | lpfc_in_buf_free(phba, dmzbuf); | |
1409 | } | |
1410 | ||
1411 | return 1; | |
1412 | } | |
1413 | ||
92d7f7b0 | 1414 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
76bb24ef JS |
1415 | if (irsp->ulpBdeCount != 0) { |
1416 | saveq->context2 = lpfc_sli_get_buff(phba, pring, | |
1417 | irsp->un.ulpWord[3]); | |
1418 | if (!saveq->context2) | |
1419 | lpfc_printf_log(phba, | |
1420 | KERN_ERR, | |
1421 | LOG_SLI, | |
1422 | "0341 Ring %d Cannot find buffer for " | |
1423 | "an unsolicited iocb. tag 0x%x\n", | |
1424 | pring->ringno, | |
1425 | irsp->un.ulpWord[3]); | |
76bb24ef JS |
1426 | } |
1427 | if (irsp->ulpBdeCount == 2) { | |
1428 | saveq->context3 = lpfc_sli_get_buff(phba, pring, | |
1429 | irsp->unsli3.sli3Words[7]); | |
1430 | if (!saveq->context3) | |
1431 | lpfc_printf_log(phba, | |
1432 | KERN_ERR, | |
1433 | LOG_SLI, | |
1434 | "0342 Ring %d Cannot find buffer for an" | |
1435 | " unsolicited iocb. tag 0x%x\n", | |
1436 | pring->ringno, | |
1437 | irsp->unsli3.sli3Words[7]); | |
1438 | } | |
1439 | list_for_each_entry(iocbq, &saveq->list, list) { | |
76bb24ef | 1440 | irsp = &(iocbq->iocb); |
76bb24ef JS |
1441 | if (irsp->ulpBdeCount != 0) { |
1442 | iocbq->context2 = lpfc_sli_get_buff(phba, pring, | |
1443 | irsp->un.ulpWord[3]); | |
9c2face6 | 1444 | if (!iocbq->context2) |
76bb24ef JS |
1445 | lpfc_printf_log(phba, |
1446 | KERN_ERR, | |
1447 | LOG_SLI, | |
1448 | "0343 Ring %d Cannot find " | |
1449 | "buffer for an unsolicited iocb" | |
1450 | ". tag 0x%x\n", pring->ringno, | |
92d7f7b0 | 1451 | irsp->un.ulpWord[3]); |
76bb24ef JS |
1452 | } |
1453 | if (irsp->ulpBdeCount == 2) { | |
1454 | iocbq->context3 = lpfc_sli_get_buff(phba, pring, | |
51ef4c26 | 1455 | irsp->unsli3.sli3Words[7]); |
9c2face6 | 1456 | if (!iocbq->context3) |
76bb24ef JS |
1457 | lpfc_printf_log(phba, |
1458 | KERN_ERR, | |
1459 | LOG_SLI, | |
1460 | "0344 Ring %d Cannot find " | |
1461 | "buffer for an unsolicited " | |
1462 | "iocb. tag 0x%x\n", | |
1463 | pring->ringno, | |
1464 | irsp->unsli3.sli3Words[7]); | |
1465 | } | |
1466 | } | |
92d7f7b0 | 1467 | } |
9c2face6 JS |
1468 | if (irsp->ulpBdeCount != 0 && |
1469 | (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX || | |
1470 | irsp->ulpStatus == IOSTAT_INTERMED_RSP)) { | |
1471 | int found = 0; | |
1472 | ||
1473 | /* search continue save q for same XRI */ | |
1474 | list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) { | |
1475 | if (iocbq->iocb.ulpContext == saveq->iocb.ulpContext) { | |
1476 | list_add_tail(&saveq->list, &iocbq->list); | |
1477 | found = 1; | |
1478 | break; | |
1479 | } | |
1480 | } | |
1481 | if (!found) | |
1482 | list_add_tail(&saveq->clist, | |
1483 | &pring->iocb_continue_saveq); | |
1484 | if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) { | |
1485 | list_del_init(&iocbq->clist); | |
1486 | saveq = iocbq; | |
1487 | irsp = &(saveq->iocb); | |
1488 | } else | |
1489 | return 0; | |
1490 | } | |
1491 | if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) || | |
1492 | (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) || | |
1493 | (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) { | |
1494 | Rctl = FC_ELS_REQ; | |
1495 | Type = FC_ELS_DATA; | |
1496 | } else { | |
1497 | w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]); | |
1498 | Rctl = w5p->hcsw.Rctl; | |
1499 | Type = w5p->hcsw.Type; | |
1500 | ||
1501 | /* Firmware Workaround */ | |
1502 | if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) && | |
1503 | (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX || | |
1504 | irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) { | |
1505 | Rctl = FC_ELS_REQ; | |
1506 | Type = FC_ELS_DATA; | |
1507 | w5p->hcsw.Rctl = Rctl; | |
1508 | w5p->hcsw.Type = Type; | |
1509 | } | |
1510 | } | |
92d7f7b0 | 1511 | |
dea3101e JB |
1512 | /* unSolicited Responses */ |
1513 | if (pring->prt[0].profile) { | |
cf5bf97e JW |
1514 | if (pring->prt[0].lpfc_sli_rcv_unsol_event) |
1515 | (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring, | |
1516 | saveq); | |
dea3101e JB |
1517 | match = 1; |
1518 | } else { | |
1519 | /* We must search, based on rctl / type | |
1520 | for the right routine */ | |
9c2face6 JS |
1521 | for (i = 0; i < pring->num_mask; i++) { |
1522 | if ((pring->prt[i].rctl == Rctl) | |
1523 | && (pring->prt[i].type == Type)) { | |
cf5bf97e JW |
1524 | if (pring->prt[i].lpfc_sli_rcv_unsol_event) |
1525 | (pring->prt[i].lpfc_sli_rcv_unsol_event) | |
1526 | (phba, pring, saveq); | |
dea3101e JB |
1527 | match = 1; |
1528 | break; | |
1529 | } | |
1530 | } | |
1531 | } | |
1532 | if (match == 0) { | |
1533 | /* Unexpected Rctl / Type received */ | |
1534 | /* Ring <ringno> handler: unexpected | |
1535 | Rctl <Rctl> Type <Type> received */ | |
92d7f7b0 | 1536 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
e8b62011 | 1537 | "0313 Ring %d handler: unexpected Rctl x%x " |
92d7f7b0 | 1538 | "Type x%x received\n", |
e8b62011 | 1539 | pring->ringno, Rctl, Type); |
dea3101e | 1540 | } |
92d7f7b0 | 1541 | return 1; |
dea3101e JB |
1542 | } |
1543 | ||
e59058c4 JS |
1544 | /** |
1545 | * lpfc_sli_iocbq_lookup: Find command iocb for the given response iocb. | |
1546 | * @phba: Pointer to HBA context object. | |
1547 | * @pring: Pointer to driver SLI ring object. | |
1548 | * @prspiocb: Pointer to response iocb object. | |
1549 | * | |
1550 | * This function looks up the iocb_lookup table to get the command iocb | |
1551 | * corresponding to the given response iocb using the iotag of the | |
1552 | * response iocb. This function is called with the hbalock held. | |
1553 | * This function returns the command iocb object if it finds the command | |
1554 | * iocb else returns NULL. | |
1555 | **/ | |
dea3101e | 1556 | static struct lpfc_iocbq * |
2e0fef85 JS |
1557 | lpfc_sli_iocbq_lookup(struct lpfc_hba *phba, |
1558 | struct lpfc_sli_ring *pring, | |
1559 | struct lpfc_iocbq *prspiocb) | |
dea3101e | 1560 | { |
dea3101e JB |
1561 | struct lpfc_iocbq *cmd_iocb = NULL; |
1562 | uint16_t iotag; | |
1563 | ||
604a3e30 JB |
1564 | iotag = prspiocb->iocb.ulpIoTag; |
1565 | ||
1566 | if (iotag != 0 && iotag <= phba->sli.last_iotag) { | |
1567 | cmd_iocb = phba->sli.iocbq_lookup[iotag]; | |
92d7f7b0 | 1568 | list_del_init(&cmd_iocb->list); |
604a3e30 JB |
1569 | pring->txcmplq_cnt--; |
1570 | return cmd_iocb; | |
dea3101e JB |
1571 | } |
1572 | ||
dea3101e | 1573 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 | 1574 | "0317 iotag x%x is out off " |
604a3e30 | 1575 | "range: max iotag x%x wd0 x%x\n", |
e8b62011 | 1576 | iotag, phba->sli.last_iotag, |
604a3e30 | 1577 | *(((uint32_t *) &prspiocb->iocb) + 7)); |
dea3101e JB |
1578 | return NULL; |
1579 | } | |
1580 | ||
e59058c4 JS |
1581 | /** |
1582 | * lpfc_sli_process_sol_iocb: process solicited iocb completion. | |
1583 | * @phba: Pointer to HBA context object. | |
1584 | * @pring: Pointer to driver SLI ring object. | |
1585 | * @saveq: Pointer to the response iocb to be processed. | |
1586 | * | |
1587 | * This function is called by the ring event handler for non-fcp | |
1588 | * rings when there is a new response iocb in the response ring. | |
1589 | * The caller is not required to hold any locks. This function | |
1590 | * gets the command iocb associated with the response iocb and | |
1591 | * calls the completion handler for the command iocb. If there | |
1592 | * is no completion handler, the function will free the resources | |
1593 | * associated with command iocb. If the response iocb is for | |
1594 | * an already aborted command iocb, the status of the completion | |
1595 | * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED. | |
1596 | * This function always returns 1. | |
1597 | **/ | |
dea3101e | 1598 | static int |
2e0fef85 | 1599 | lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
dea3101e JB |
1600 | struct lpfc_iocbq *saveq) |
1601 | { | |
2e0fef85 | 1602 | struct lpfc_iocbq *cmdiocbp; |
dea3101e JB |
1603 | int rc = 1; |
1604 | unsigned long iflag; | |
1605 | ||
1606 | /* Based on the iotag field, get the cmd IOCB from the txcmplq */ | |
2e0fef85 | 1607 | spin_lock_irqsave(&phba->hbalock, iflag); |
604a3e30 | 1608 | cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq); |
2e0fef85 JS |
1609 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
1610 | ||
dea3101e JB |
1611 | if (cmdiocbp) { |
1612 | if (cmdiocbp->iocb_cmpl) { | |
1613 | /* | |
1614 | * Post all ELS completions to the worker thread. | |
1615 | * All other are passed to the completion callback. | |
1616 | */ | |
1617 | if (pring->ringno == LPFC_ELS_RING) { | |
07951076 JS |
1618 | if (cmdiocbp->iocb_flag & LPFC_DRIVER_ABORTED) { |
1619 | cmdiocbp->iocb_flag &= | |
1620 | ~LPFC_DRIVER_ABORTED; | |
1621 | saveq->iocb.ulpStatus = | |
1622 | IOSTAT_LOCAL_REJECT; | |
1623 | saveq->iocb.un.ulpWord[4] = | |
1624 | IOERR_SLI_ABORTED; | |
0ff10d46 JS |
1625 | |
1626 | /* Firmware could still be in progress | |
1627 | * of DMAing payload, so don't free data | |
1628 | * buffer till after a hbeat. | |
1629 | */ | |
1630 | saveq->iocb_flag |= LPFC_DELAY_MEM_FREE; | |
07951076 | 1631 | } |
dea3101e | 1632 | } |
2e0fef85 | 1633 | (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq); |
604a3e30 JB |
1634 | } else |
1635 | lpfc_sli_release_iocbq(phba, cmdiocbp); | |
dea3101e JB |
1636 | } else { |
1637 | /* | |
1638 | * Unknown initiating command based on the response iotag. | |
1639 | * This could be the case on the ELS ring because of | |
1640 | * lpfc_els_abort(). | |
1641 | */ | |
1642 | if (pring->ringno != LPFC_ELS_RING) { | |
1643 | /* | |
1644 | * Ring <ringno> handler: unexpected completion IoTag | |
1645 | * <IoTag> | |
1646 | */ | |
e8b62011 JS |
1647 | lpfc_printf_vlog(cmdiocbp->vport, KERN_WARNING, LOG_SLI, |
1648 | "0322 Ring %d handler: " | |
1649 | "unexpected completion IoTag x%x " | |
1650 | "Data: x%x x%x x%x x%x\n", | |
1651 | pring->ringno, | |
1652 | saveq->iocb.ulpIoTag, | |
1653 | saveq->iocb.ulpStatus, | |
1654 | saveq->iocb.un.ulpWord[4], | |
1655 | saveq->iocb.ulpCommand, | |
1656 | saveq->iocb.ulpContext); | |
dea3101e JB |
1657 | } |
1658 | } | |
68876920 | 1659 | |
dea3101e JB |
1660 | return rc; |
1661 | } | |
1662 | ||
e59058c4 JS |
1663 | /** |
1664 | * lpfc_sli_rsp_pointers_error: Response ring pointer error handler. | |
1665 | * @phba: Pointer to HBA context object. | |
1666 | * @pring: Pointer to driver SLI ring object. | |
1667 | * | |
1668 | * This function is called from the iocb ring event handlers when | |
1669 | * put pointer is ahead of the get pointer for a ring. This function signal | |
1670 | * an error attention condition to the worker thread and the worker | |
1671 | * thread will transition the HBA to offline state. | |
1672 | **/ | |
2e0fef85 JS |
1673 | static void |
1674 | lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
875fbdfe | 1675 | { |
34b02dcd | 1676 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
875fbdfe JSEC |
1677 | /* |
1678 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger then | |
1679 | * rsp ring <portRspMax> | |
1680 | */ | |
1681 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 1682 | "0312 Ring %d handler: portRspPut %d " |
875fbdfe | 1683 | "is bigger then rsp ring %d\n", |
e8b62011 | 1684 | pring->ringno, le32_to_cpu(pgp->rspPutInx), |
875fbdfe JSEC |
1685 | pring->numRiocb); |
1686 | ||
2e0fef85 | 1687 | phba->link_state = LPFC_HBA_ERROR; |
875fbdfe JSEC |
1688 | |
1689 | /* | |
1690 | * All error attention handlers are posted to | |
1691 | * worker thread | |
1692 | */ | |
1693 | phba->work_ha |= HA_ERATT; | |
1694 | phba->work_hs = HS_FFER3; | |
92d7f7b0 | 1695 | |
5e9d9b82 | 1696 | lpfc_worker_wake_up(phba); |
875fbdfe JSEC |
1697 | |
1698 | return; | |
1699 | } | |
1700 | ||
e59058c4 JS |
1701 | /** |
1702 | * lpfc_sli_poll_fcp_ring: Handle FCP ring completion in polling mode. | |
1703 | * @phba: Pointer to HBA context object. | |
1704 | * | |
1705 | * This function is called from lpfc_queuecommand, lpfc_poll_timeout, | |
1706 | * lpfc_abort_handler and lpfc_slave_configure when FCP_RING_POLLING | |
1707 | * is enabled. | |
1708 | * | |
1709 | * The caller does not hold any lock. | |
1710 | * The function processes each response iocb in the response ring until it | |
1711 | * finds an iocb with LE bit set and chains all the iocbs upto the iocb with | |
1712 | * LE bit set. The function will call the completion handler of the command iocb | |
1713 | * if the response iocb indicates a completion for a command iocb or it is | |
1714 | * an abort completion. | |
1715 | **/ | |
2e0fef85 | 1716 | void lpfc_sli_poll_fcp_ring(struct lpfc_hba *phba) |
875fbdfe | 1717 | { |
2e0fef85 JS |
1718 | struct lpfc_sli *psli = &phba->sli; |
1719 | struct lpfc_sli_ring *pring = &psli->ring[LPFC_FCP_RING]; | |
875fbdfe JSEC |
1720 | IOCB_t *irsp = NULL; |
1721 | IOCB_t *entry = NULL; | |
1722 | struct lpfc_iocbq *cmdiocbq = NULL; | |
1723 | struct lpfc_iocbq rspiocbq; | |
34b02dcd | 1724 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
875fbdfe JSEC |
1725 | uint32_t status; |
1726 | uint32_t portRspPut, portRspMax; | |
1727 | int type; | |
1728 | uint32_t rsp_cmpl = 0; | |
875fbdfe | 1729 | uint32_t ha_copy; |
2e0fef85 | 1730 | unsigned long iflags; |
875fbdfe JSEC |
1731 | |
1732 | pring->stats.iocb_event++; | |
1733 | ||
875fbdfe JSEC |
1734 | /* |
1735 | * The next available response entry should never exceed the maximum | |
1736 | * entries. If it does, treat it as an adapter hardware error. | |
1737 | */ | |
1738 | portRspMax = pring->numRiocb; | |
1739 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1740 | if (unlikely(portRspPut >= portRspMax)) { | |
1741 | lpfc_sli_rsp_pointers_error(phba, pring); | |
1742 | return; | |
1743 | } | |
1744 | ||
1745 | rmb(); | |
1746 | while (pring->rspidx != portRspPut) { | |
ed957684 | 1747 | entry = lpfc_resp_iocb(phba, pring); |
875fbdfe JSEC |
1748 | if (++pring->rspidx >= portRspMax) |
1749 | pring->rspidx = 0; | |
1750 | ||
1751 | lpfc_sli_pcimem_bcopy((uint32_t *) entry, | |
1752 | (uint32_t *) &rspiocbq.iocb, | |
92d7f7b0 | 1753 | phba->iocb_rsp_size); |
875fbdfe JSEC |
1754 | irsp = &rspiocbq.iocb; |
1755 | type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); | |
1756 | pring->stats.iocb_rsp++; | |
1757 | rsp_cmpl++; | |
1758 | ||
1759 | if (unlikely(irsp->ulpStatus)) { | |
1760 | /* Rsp ring <ringno> error: IOCB */ | |
1761 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
e8b62011 | 1762 | "0326 Rsp Ring %d error: IOCB Data: " |
875fbdfe | 1763 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", |
e8b62011 | 1764 | pring->ringno, |
875fbdfe JSEC |
1765 | irsp->un.ulpWord[0], |
1766 | irsp->un.ulpWord[1], | |
1767 | irsp->un.ulpWord[2], | |
1768 | irsp->un.ulpWord[3], | |
1769 | irsp->un.ulpWord[4], | |
1770 | irsp->un.ulpWord[5], | |
d7c255b2 JS |
1771 | *(uint32_t *)&irsp->un1, |
1772 | *((uint32_t *)&irsp->un1 + 1)); | |
875fbdfe JSEC |
1773 | } |
1774 | ||
1775 | switch (type) { | |
1776 | case LPFC_ABORT_IOCB: | |
1777 | case LPFC_SOL_IOCB: | |
1778 | /* | |
1779 | * Idle exchange closed via ABTS from port. No iocb | |
1780 | * resources need to be recovered. | |
1781 | */ | |
1782 | if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { | |
dca9479b | 1783 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
e8b62011 JS |
1784 | "0314 IOCB cmd 0x%x " |
1785 | "processed. Skipping " | |
1786 | "completion", | |
dca9479b | 1787 | irsp->ulpCommand); |
875fbdfe JSEC |
1788 | break; |
1789 | } | |
1790 | ||
2e0fef85 | 1791 | spin_lock_irqsave(&phba->hbalock, iflags); |
875fbdfe JSEC |
1792 | cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, |
1793 | &rspiocbq); | |
2e0fef85 | 1794 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
875fbdfe JSEC |
1795 | if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { |
1796 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, | |
1797 | &rspiocbq); | |
1798 | } | |
1799 | break; | |
1800 | default: | |
1801 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
1802 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
1803 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
1804 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
1805 | MAX_MSG_DATA); | |
898eb71c JP |
1806 | dev_warn(&((phba->pcidev)->dev), |
1807 | "lpfc%d: %s\n", | |
875fbdfe JSEC |
1808 | phba->brd_no, adaptermsg); |
1809 | } else { | |
1810 | /* Unknown IOCB command */ | |
1811 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 1812 | "0321 Unknown IOCB command " |
875fbdfe | 1813 | "Data: x%x, x%x x%x x%x x%x\n", |
e8b62011 | 1814 | type, irsp->ulpCommand, |
875fbdfe JSEC |
1815 | irsp->ulpStatus, |
1816 | irsp->ulpIoTag, | |
1817 | irsp->ulpContext); | |
1818 | } | |
1819 | break; | |
1820 | } | |
1821 | ||
1822 | /* | |
1823 | * The response IOCB has been processed. Update the ring | |
1824 | * pointer in SLIM. If the port response put pointer has not | |
1825 | * been updated, sync the pgp->rspPutInx and fetch the new port | |
1826 | * response put pointer. | |
1827 | */ | |
ed957684 | 1828 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); |
875fbdfe JSEC |
1829 | |
1830 | if (pring->rspidx == portRspPut) | |
1831 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1832 | } | |
1833 | ||
1834 | ha_copy = readl(phba->HAregaddr); | |
1835 | ha_copy >>= (LPFC_FCP_RING * 4); | |
1836 | ||
1837 | if ((rsp_cmpl > 0) && (ha_copy & HA_R0RE_REQ)) { | |
2e0fef85 | 1838 | spin_lock_irqsave(&phba->hbalock, iflags); |
875fbdfe JSEC |
1839 | pring->stats.iocb_rsp_full++; |
1840 | status = ((CA_R0ATT | CA_R0RE_RSP) << (LPFC_FCP_RING * 4)); | |
1841 | writel(status, phba->CAregaddr); | |
1842 | readl(phba->CAregaddr); | |
2e0fef85 | 1843 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
875fbdfe JSEC |
1844 | } |
1845 | if ((ha_copy & HA_R0CE_RSP) && | |
1846 | (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2e0fef85 | 1847 | spin_lock_irqsave(&phba->hbalock, iflags); |
875fbdfe JSEC |
1848 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; |
1849 | pring->stats.iocb_cmd_empty++; | |
1850 | ||
1851 | /* Force update of the local copy of cmdGetInx */ | |
1852 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
1853 | lpfc_sli_resume_iocb(phba, pring); | |
1854 | ||
1855 | if ((pring->lpfc_sli_cmd_available)) | |
1856 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
1857 | ||
2e0fef85 | 1858 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
875fbdfe JSEC |
1859 | } |
1860 | ||
1861 | return; | |
1862 | } | |
1863 | ||
e59058c4 JS |
1864 | /** |
1865 | * lpfc_sli_handle_fast_ring_event: Handle ring events on FCP ring. | |
1866 | * @phba: Pointer to HBA context object. | |
1867 | * @pring: Pointer to driver SLI ring object. | |
1868 | * @mask: Host attention register mask for this ring. | |
1869 | * | |
1870 | * This function is called from the interrupt context when there is a ring | |
1871 | * event for the fcp ring. The caller does not hold any lock. | |
1872 | * The function processes each response iocb in the response ring until it | |
1873 | * finds an iocb with LE bit set and chains all the iocbs upto the iocb with | |
1874 | * LE bit set. The function will call the completion handler of the command iocb | |
1875 | * if the response iocb indicates a completion for a command iocb or it is | |
1876 | * an abort completion. The function will call lpfc_sli_process_unsol_iocb | |
1877 | * function if this is an unsolicited iocb. | |
dea3101e | 1878 | * This routine presumes LPFC_FCP_RING handling and doesn't bother |
e59058c4 JS |
1879 | * to check it explicitly. This function always returns 1. |
1880 | **/ | |
dea3101e | 1881 | static int |
2e0fef85 JS |
1882 | lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba, |
1883 | struct lpfc_sli_ring *pring, uint32_t mask) | |
dea3101e | 1884 | { |
34b02dcd | 1885 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
dea3101e | 1886 | IOCB_t *irsp = NULL; |
87f6eaff | 1887 | IOCB_t *entry = NULL; |
dea3101e JB |
1888 | struct lpfc_iocbq *cmdiocbq = NULL; |
1889 | struct lpfc_iocbq rspiocbq; | |
dea3101e JB |
1890 | uint32_t status; |
1891 | uint32_t portRspPut, portRspMax; | |
1892 | int rc = 1; | |
1893 | lpfc_iocb_type type; | |
1894 | unsigned long iflag; | |
1895 | uint32_t rsp_cmpl = 0; | |
dea3101e | 1896 | |
2e0fef85 | 1897 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e JB |
1898 | pring->stats.iocb_event++; |
1899 | ||
dea3101e JB |
1900 | /* |
1901 | * The next available response entry should never exceed the maximum | |
1902 | * entries. If it does, treat it as an adapter hardware error. | |
1903 | */ | |
1904 | portRspMax = pring->numRiocb; | |
1905 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1906 | if (unlikely(portRspPut >= portRspMax)) { | |
875fbdfe | 1907 | lpfc_sli_rsp_pointers_error(phba, pring); |
2e0fef85 | 1908 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e JB |
1909 | return 1; |
1910 | } | |
1911 | ||
1912 | rmb(); | |
1913 | while (pring->rspidx != portRspPut) { | |
87f6eaff JSEC |
1914 | /* |
1915 | * Fetch an entry off the ring and copy it into a local data | |
1916 | * structure. The copy involves a byte-swap since the | |
1917 | * network byte order and pci byte orders are different. | |
1918 | */ | |
ed957684 | 1919 | entry = lpfc_resp_iocb(phba, pring); |
858c9f6c | 1920 | phba->last_completion_time = jiffies; |
875fbdfe JSEC |
1921 | |
1922 | if (++pring->rspidx >= portRspMax) | |
1923 | pring->rspidx = 0; | |
1924 | ||
87f6eaff JSEC |
1925 | lpfc_sli_pcimem_bcopy((uint32_t *) entry, |
1926 | (uint32_t *) &rspiocbq.iocb, | |
ed957684 | 1927 | phba->iocb_rsp_size); |
a4bc3379 | 1928 | INIT_LIST_HEAD(&(rspiocbq.list)); |
87f6eaff JSEC |
1929 | irsp = &rspiocbq.iocb; |
1930 | ||
dea3101e JB |
1931 | type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); |
1932 | pring->stats.iocb_rsp++; | |
1933 | rsp_cmpl++; | |
1934 | ||
1935 | if (unlikely(irsp->ulpStatus)) { | |
92d7f7b0 JS |
1936 | /* |
1937 | * If resource errors reported from HBA, reduce | |
1938 | * queuedepths of the SCSI device. | |
1939 | */ | |
1940 | if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
1941 | (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) { | |
1942 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
1943 | lpfc_adjust_queue_depth(phba); | |
1944 | spin_lock_irqsave(&phba->hbalock, iflag); | |
1945 | } | |
1946 | ||
dea3101e JB |
1947 | /* Rsp ring <ringno> error: IOCB */ |
1948 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
e8b62011 | 1949 | "0336 Rsp Ring %d error: IOCB Data: " |
92d7f7b0 | 1950 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", |
e8b62011 | 1951 | pring->ringno, |
92d7f7b0 JS |
1952 | irsp->un.ulpWord[0], |
1953 | irsp->un.ulpWord[1], | |
1954 | irsp->un.ulpWord[2], | |
1955 | irsp->un.ulpWord[3], | |
1956 | irsp->un.ulpWord[4], | |
1957 | irsp->un.ulpWord[5], | |
d7c255b2 JS |
1958 | *(uint32_t *)&irsp->un1, |
1959 | *((uint32_t *)&irsp->un1 + 1)); | |
dea3101e JB |
1960 | } |
1961 | ||
1962 | switch (type) { | |
1963 | case LPFC_ABORT_IOCB: | |
1964 | case LPFC_SOL_IOCB: | |
1965 | /* | |
1966 | * Idle exchange closed via ABTS from port. No iocb | |
1967 | * resources need to be recovered. | |
1968 | */ | |
1969 | if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { | |
dca9479b | 1970 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
e8b62011 | 1971 | "0333 IOCB cmd 0x%x" |
dca9479b | 1972 | " processed. Skipping" |
92d7f7b0 | 1973 | " completion\n", |
dca9479b | 1974 | irsp->ulpCommand); |
dea3101e JB |
1975 | break; |
1976 | } | |
1977 | ||
604a3e30 JB |
1978 | cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, |
1979 | &rspiocbq); | |
dea3101e | 1980 | if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { |
b808608b JW |
1981 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { |
1982 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, | |
1983 | &rspiocbq); | |
1984 | } else { | |
2e0fef85 JS |
1985 | spin_unlock_irqrestore(&phba->hbalock, |
1986 | iflag); | |
b808608b JW |
1987 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, |
1988 | &rspiocbq); | |
2e0fef85 | 1989 | spin_lock_irqsave(&phba->hbalock, |
b808608b JW |
1990 | iflag); |
1991 | } | |
dea3101e JB |
1992 | } |
1993 | break; | |
a4bc3379 | 1994 | case LPFC_UNSOL_IOCB: |
2e0fef85 | 1995 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
a4bc3379 | 1996 | lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq); |
2e0fef85 | 1997 | spin_lock_irqsave(&phba->hbalock, iflag); |
a4bc3379 | 1998 | break; |
dea3101e JB |
1999 | default: |
2000 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
2001 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
2002 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
2003 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
2004 | MAX_MSG_DATA); | |
898eb71c JP |
2005 | dev_warn(&((phba->pcidev)->dev), |
2006 | "lpfc%d: %s\n", | |
dea3101e JB |
2007 | phba->brd_no, adaptermsg); |
2008 | } else { | |
2009 | /* Unknown IOCB command */ | |
2010 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 2011 | "0334 Unknown IOCB command " |
92d7f7b0 | 2012 | "Data: x%x, x%x x%x x%x x%x\n", |
e8b62011 | 2013 | type, irsp->ulpCommand, |
92d7f7b0 JS |
2014 | irsp->ulpStatus, |
2015 | irsp->ulpIoTag, | |
2016 | irsp->ulpContext); | |
dea3101e JB |
2017 | } |
2018 | break; | |
2019 | } | |
2020 | ||
2021 | /* | |
2022 | * The response IOCB has been processed. Update the ring | |
2023 | * pointer in SLIM. If the port response put pointer has not | |
2024 | * been updated, sync the pgp->rspPutInx and fetch the new port | |
2025 | * response put pointer. | |
2026 | */ | |
ed957684 | 2027 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); |
dea3101e JB |
2028 | |
2029 | if (pring->rspidx == portRspPut) | |
2030 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2031 | } | |
2032 | ||
2033 | if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) { | |
2034 | pring->stats.iocb_rsp_full++; | |
2035 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
2036 | writel(status, phba->CAregaddr); | |
2037 | readl(phba->CAregaddr); | |
2038 | } | |
2039 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2040 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
2041 | pring->stats.iocb_cmd_empty++; | |
2042 | ||
2043 | /* Force update of the local copy of cmdGetInx */ | |
2044 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
2045 | lpfc_sli_resume_iocb(phba, pring); | |
2046 | ||
2047 | if ((pring->lpfc_sli_cmd_available)) | |
2048 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
2049 | ||
2050 | } | |
2051 | ||
2e0fef85 | 2052 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e JB |
2053 | return rc; |
2054 | } | |
2055 | ||
e59058c4 JS |
2056 | /** |
2057 | * lpfc_sli_handle_slow_ring_event: Handle ring events for non-FCP rings. | |
2058 | * @phba: Pointer to HBA context object. | |
2059 | * @pring: Pointer to driver SLI ring object. | |
2060 | * @mask: Host attention register mask for this ring. | |
2061 | * | |
2062 | * This function is called from the worker thread when there is a ring | |
2063 | * event for non-fcp rings. The caller does not hold any lock . | |
2064 | * The function processes each response iocb in the response ring until it | |
2065 | * finds an iocb with LE bit set and chains all the iocbs upto the iocb with | |
2066 | * LE bit set. The function will call lpfc_sli_process_sol_iocb function if the | |
2067 | * response iocb indicates a completion of a command iocb. The function | |
2068 | * will call lpfc_sli_process_unsol_iocb function if this is an unsolicited | |
2069 | * iocb. The function frees the resources or calls the completion handler if | |
2070 | * this iocb is an abort completion. The function returns 0 when the allocated | |
2071 | * iocbs are not freed, otherwise returns 1. | |
2072 | **/ | |
dea3101e | 2073 | int |
2e0fef85 JS |
2074 | lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba, |
2075 | struct lpfc_sli_ring *pring, uint32_t mask) | |
dea3101e | 2076 | { |
34b02dcd | 2077 | struct lpfc_pgp *pgp; |
dea3101e JB |
2078 | IOCB_t *entry; |
2079 | IOCB_t *irsp = NULL; | |
2080 | struct lpfc_iocbq *rspiocbp = NULL; | |
2081 | struct lpfc_iocbq *next_iocb; | |
2082 | struct lpfc_iocbq *cmdiocbp; | |
2083 | struct lpfc_iocbq *saveq; | |
dea3101e JB |
2084 | uint8_t iocb_cmd_type; |
2085 | lpfc_iocb_type type; | |
2086 | uint32_t status, free_saveq; | |
2087 | uint32_t portRspPut, portRspMax; | |
2088 | int rc = 1; | |
2089 | unsigned long iflag; | |
dea3101e | 2090 | |
34b02dcd | 2091 | pgp = &phba->port_gp[pring->ringno]; |
2e0fef85 | 2092 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e JB |
2093 | pring->stats.iocb_event++; |
2094 | ||
dea3101e JB |
2095 | /* |
2096 | * The next available response entry should never exceed the maximum | |
2097 | * entries. If it does, treat it as an adapter hardware error. | |
2098 | */ | |
2099 | portRspMax = pring->numRiocb; | |
2100 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2101 | if (portRspPut >= portRspMax) { | |
2102 | /* | |
2103 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger then | |
2104 | * rsp ring <portRspMax> | |
2105 | */ | |
ed957684 | 2106 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 | 2107 | "0303 Ring %d handler: portRspPut %d " |
dea3101e | 2108 | "is bigger then rsp ring %d\n", |
e8b62011 | 2109 | pring->ringno, portRspPut, portRspMax); |
dea3101e | 2110 | |
2e0fef85 JS |
2111 | phba->link_state = LPFC_HBA_ERROR; |
2112 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
dea3101e JB |
2113 | |
2114 | phba->work_hs = HS_FFER3; | |
2115 | lpfc_handle_eratt(phba); | |
2116 | ||
2117 | return 1; | |
2118 | } | |
2119 | ||
2120 | rmb(); | |
dea3101e JB |
2121 | while (pring->rspidx != portRspPut) { |
2122 | /* | |
2123 | * Build a completion list and call the appropriate handler. | |
2124 | * The process is to get the next available response iocb, get | |
2125 | * a free iocb from the list, copy the response data into the | |
2126 | * free iocb, insert to the continuation list, and update the | |
2127 | * next response index to slim. This process makes response | |
2128 | * iocb's in the ring available to DMA as fast as possible but | |
2129 | * pays a penalty for a copy operation. Since the iocb is | |
2130 | * only 32 bytes, this penalty is considered small relative to | |
2131 | * the PCI reads for register values and a slim write. When | |
2132 | * the ulpLe field is set, the entire Command has been | |
2133 | * received. | |
2134 | */ | |
ed957684 JS |
2135 | entry = lpfc_resp_iocb(phba, pring); |
2136 | ||
858c9f6c | 2137 | phba->last_completion_time = jiffies; |
2e0fef85 | 2138 | rspiocbp = __lpfc_sli_get_iocbq(phba); |
dea3101e JB |
2139 | if (rspiocbp == NULL) { |
2140 | printk(KERN_ERR "%s: out of buffers! Failing " | |
cadbd4a5 | 2141 | "completion.\n", __func__); |
dea3101e JB |
2142 | break; |
2143 | } | |
2144 | ||
ed957684 JS |
2145 | lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb, |
2146 | phba->iocb_rsp_size); | |
dea3101e JB |
2147 | irsp = &rspiocbp->iocb; |
2148 | ||
2149 | if (++pring->rspidx >= portRspMax) | |
2150 | pring->rspidx = 0; | |
2151 | ||
a58cbd52 JS |
2152 | if (pring->ringno == LPFC_ELS_RING) { |
2153 | lpfc_debugfs_slow_ring_trc(phba, | |
2154 | "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x", | |
2155 | *(((uint32_t *) irsp) + 4), | |
2156 | *(((uint32_t *) irsp) + 6), | |
2157 | *(((uint32_t *) irsp) + 7)); | |
2158 | } | |
2159 | ||
ed957684 | 2160 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); |
dea3101e | 2161 | |
9c2face6 | 2162 | list_add_tail(&rspiocbp->list, &(pring->iocb_continueq)); |
dea3101e JB |
2163 | |
2164 | pring->iocb_continueq_cnt++; | |
2165 | if (irsp->ulpLe) { | |
2166 | /* | |
2167 | * By default, the driver expects to free all resources | |
2168 | * associated with this iocb completion. | |
2169 | */ | |
2170 | free_saveq = 1; | |
2171 | saveq = list_get_first(&pring->iocb_continueq, | |
2172 | struct lpfc_iocbq, list); | |
2173 | irsp = &(saveq->iocb); | |
2174 | list_del_init(&pring->iocb_continueq); | |
2175 | pring->iocb_continueq_cnt = 0; | |
2176 | ||
2177 | pring->stats.iocb_rsp++; | |
2178 | ||
92d7f7b0 JS |
2179 | /* |
2180 | * If resource errors reported from HBA, reduce | |
2181 | * queuedepths of the SCSI device. | |
2182 | */ | |
2183 | if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
2184 | (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) { | |
2185 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2186 | lpfc_adjust_queue_depth(phba); | |
2187 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2188 | } | |
2189 | ||
dea3101e JB |
2190 | if (irsp->ulpStatus) { |
2191 | /* Rsp ring <ringno> error: IOCB */ | |
ed957684 | 2192 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
e8b62011 | 2193 | "0328 Rsp Ring %d error: " |
ed957684 JS |
2194 | "IOCB Data: " |
2195 | "x%x x%x x%x x%x " | |
2196 | "x%x x%x x%x x%x " | |
2197 | "x%x x%x x%x x%x " | |
2198 | "x%x x%x x%x x%x\n", | |
ed957684 JS |
2199 | pring->ringno, |
2200 | irsp->un.ulpWord[0], | |
2201 | irsp->un.ulpWord[1], | |
2202 | irsp->un.ulpWord[2], | |
2203 | irsp->un.ulpWord[3], | |
2204 | irsp->un.ulpWord[4], | |
2205 | irsp->un.ulpWord[5], | |
2206 | *(((uint32_t *) irsp) + 6), | |
2207 | *(((uint32_t *) irsp) + 7), | |
2208 | *(((uint32_t *) irsp) + 8), | |
2209 | *(((uint32_t *) irsp) + 9), | |
2210 | *(((uint32_t *) irsp) + 10), | |
2211 | *(((uint32_t *) irsp) + 11), | |
2212 | *(((uint32_t *) irsp) + 12), | |
2213 | *(((uint32_t *) irsp) + 13), | |
2214 | *(((uint32_t *) irsp) + 14), | |
2215 | *(((uint32_t *) irsp) + 15)); | |
dea3101e JB |
2216 | } |
2217 | ||
2218 | /* | |
2219 | * Fetch the IOCB command type and call the correct | |
2220 | * completion routine. Solicited and Unsolicited | |
2221 | * IOCBs on the ELS ring get freed back to the | |
2222 | * lpfc_iocb_list by the discovery kernel thread. | |
2223 | */ | |
2224 | iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK; | |
2225 | type = lpfc_sli_iocb_cmd_type(iocb_cmd_type); | |
2226 | if (type == LPFC_SOL_IOCB) { | |
9c2face6 | 2227 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 2228 | rc = lpfc_sli_process_sol_iocb(phba, pring, |
2e0fef85 JS |
2229 | saveq); |
2230 | spin_lock_irqsave(&phba->hbalock, iflag); | |
dea3101e | 2231 | } else if (type == LPFC_UNSOL_IOCB) { |
9c2face6 | 2232 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 2233 | rc = lpfc_sli_process_unsol_iocb(phba, pring, |
2e0fef85 JS |
2234 | saveq); |
2235 | spin_lock_irqsave(&phba->hbalock, iflag); | |
9c2face6 JS |
2236 | if (!rc) |
2237 | free_saveq = 0; | |
dea3101e JB |
2238 | } else if (type == LPFC_ABORT_IOCB) { |
2239 | if ((irsp->ulpCommand != CMD_XRI_ABORTED_CX) && | |
2240 | ((cmdiocbp = | |
604a3e30 JB |
2241 | lpfc_sli_iocbq_lookup(phba, pring, |
2242 | saveq)))) { | |
dea3101e JB |
2243 | /* Call the specified completion |
2244 | routine */ | |
2245 | if (cmdiocbp->iocb_cmpl) { | |
2246 | spin_unlock_irqrestore( | |
2e0fef85 | 2247 | &phba->hbalock, |
dea3101e JB |
2248 | iflag); |
2249 | (cmdiocbp->iocb_cmpl) (phba, | |
2250 | cmdiocbp, saveq); | |
2251 | spin_lock_irqsave( | |
2e0fef85 | 2252 | &phba->hbalock, |
dea3101e | 2253 | iflag); |
604a3e30 | 2254 | } else |
2e0fef85 | 2255 | __lpfc_sli_release_iocbq(phba, |
604a3e30 | 2256 | cmdiocbp); |
dea3101e JB |
2257 | } |
2258 | } else if (type == LPFC_UNKNOWN_IOCB) { | |
2259 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
2260 | ||
2261 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
2262 | ||
2263 | memset(adaptermsg, 0, | |
2264 | LPFC_MAX_ADPTMSG); | |
2265 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
2266 | MAX_MSG_DATA); | |
2267 | dev_warn(&((phba->pcidev)->dev), | |
898eb71c | 2268 | "lpfc%d: %s\n", |
dea3101e JB |
2269 | phba->brd_no, adaptermsg); |
2270 | } else { | |
2271 | /* Unknown IOCB command */ | |
92d7f7b0 | 2272 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 | 2273 | "0335 Unknown IOCB " |
92d7f7b0 JS |
2274 | "command Data: x%x " |
2275 | "x%x x%x x%x\n", | |
92d7f7b0 JS |
2276 | irsp->ulpCommand, |
2277 | irsp->ulpStatus, | |
2278 | irsp->ulpIoTag, | |
2279 | irsp->ulpContext); | |
dea3101e JB |
2280 | } |
2281 | } | |
2282 | ||
2283 | if (free_saveq) { | |
2e0fef85 JS |
2284 | list_for_each_entry_safe(rspiocbp, next_iocb, |
2285 | &saveq->list, list) { | |
2286 | list_del(&rspiocbp->list); | |
2287 | __lpfc_sli_release_iocbq(phba, | |
2288 | rspiocbp); | |
dea3101e | 2289 | } |
2e0fef85 | 2290 | __lpfc_sli_release_iocbq(phba, saveq); |
dea3101e | 2291 | } |
92d7f7b0 | 2292 | rspiocbp = NULL; |
dea3101e JB |
2293 | } |
2294 | ||
2295 | /* | |
2296 | * If the port response put pointer has not been updated, sync | |
2297 | * the pgp->rspPutInx in the MAILBOX_tand fetch the new port | |
2298 | * response put pointer. | |
2299 | */ | |
2300 | if (pring->rspidx == portRspPut) { | |
2301 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2302 | } | |
2303 | } /* while (pring->rspidx != portRspPut) */ | |
2304 | ||
92d7f7b0 | 2305 | if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) { |
dea3101e JB |
2306 | /* At least one response entry has been freed */ |
2307 | pring->stats.iocb_rsp_full++; | |
2308 | /* SET RxRE_RSP in Chip Att register */ | |
2309 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
2310 | writel(status, phba->CAregaddr); | |
2311 | readl(phba->CAregaddr); /* flush */ | |
2312 | } | |
2313 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2314 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
2315 | pring->stats.iocb_cmd_empty++; | |
2316 | ||
2317 | /* Force update of the local copy of cmdGetInx */ | |
2318 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
2319 | lpfc_sli_resume_iocb(phba, pring); | |
2320 | ||
2321 | if ((pring->lpfc_sli_cmd_available)) | |
2322 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
2323 | ||
2324 | } | |
2325 | ||
2e0fef85 | 2326 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e JB |
2327 | return rc; |
2328 | } | |
2329 | ||
e59058c4 JS |
2330 | /** |
2331 | * lpfc_sli_abort_iocb_ring: Abort all iocbs in the ring. | |
2332 | * @phba: Pointer to HBA context object. | |
2333 | * @pring: Pointer to driver SLI ring object. | |
2334 | * | |
2335 | * This function aborts all iocbs in the given ring and frees all the iocb | |
2336 | * objects in txq. This function issues an abort iocb for all the iocb commands | |
2337 | * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before | |
2338 | * the return of this function. The caller is not required to hold any locks. | |
2339 | **/ | |
2e0fef85 | 2340 | void |
dea3101e JB |
2341 | lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
2342 | { | |
2534ba75 | 2343 | LIST_HEAD(completions); |
dea3101e | 2344 | struct lpfc_iocbq *iocb, *next_iocb; |
2534ba75 | 2345 | IOCB_t *cmd = NULL; |
dea3101e | 2346 | |
92d7f7b0 JS |
2347 | if (pring->ringno == LPFC_ELS_RING) { |
2348 | lpfc_fabric_abort_hba(phba); | |
2349 | } | |
2350 | ||
dea3101e JB |
2351 | /* Error everything on txq and txcmplq |
2352 | * First do the txq. | |
2353 | */ | |
2e0fef85 | 2354 | spin_lock_irq(&phba->hbalock); |
2534ba75 | 2355 | list_splice_init(&pring->txq, &completions); |
dea3101e | 2356 | pring->txq_cnt = 0; |
dea3101e JB |
2357 | |
2358 | /* Next issue ABTS for everything on the txcmplq */ | |
2534ba75 JS |
2359 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) |
2360 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); | |
dea3101e | 2361 | |
2e0fef85 | 2362 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 2363 | |
2534ba75 JS |
2364 | while (!list_empty(&completions)) { |
2365 | iocb = list_get_first(&completions, struct lpfc_iocbq, list); | |
2366 | cmd = &iocb->iocb; | |
92d7f7b0 | 2367 | list_del_init(&iocb->list); |
dea3101e | 2368 | |
2e0fef85 JS |
2369 | if (!iocb->iocb_cmpl) |
2370 | lpfc_sli_release_iocbq(phba, iocb); | |
2371 | else { | |
dea3101e JB |
2372 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; |
2373 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
dea3101e | 2374 | (iocb->iocb_cmpl) (phba, iocb, iocb); |
2e0fef85 | 2375 | } |
dea3101e | 2376 | } |
dea3101e JB |
2377 | } |
2378 | ||
a8e497d5 JS |
2379 | /** |
2380 | * lpfc_sli_flush_fcp_rings: flush all iocbs in the fcp ring. | |
2381 | * @phba: Pointer to HBA context object. | |
2382 | * | |
2383 | * This function flushes all iocbs in the fcp ring and frees all the iocb | |
2384 | * objects in txq and txcmplq. This function will not issue abort iocbs | |
2385 | * for all the iocb commands in txcmplq, they will just be returned with | |
2386 | * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI | |
2387 | * slot has been permanently disabled. | |
2388 | **/ | |
2389 | void | |
2390 | lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba) | |
2391 | { | |
2392 | LIST_HEAD(txq); | |
2393 | LIST_HEAD(txcmplq); | |
2394 | struct lpfc_iocbq *iocb; | |
2395 | IOCB_t *cmd = NULL; | |
2396 | struct lpfc_sli *psli = &phba->sli; | |
2397 | struct lpfc_sli_ring *pring; | |
2398 | ||
2399 | /* Currently, only one fcp ring */ | |
2400 | pring = &psli->ring[psli->fcp_ring]; | |
2401 | ||
2402 | spin_lock_irq(&phba->hbalock); | |
2403 | /* Retrieve everything on txq */ | |
2404 | list_splice_init(&pring->txq, &txq); | |
2405 | pring->txq_cnt = 0; | |
2406 | ||
2407 | /* Retrieve everything on the txcmplq */ | |
2408 | list_splice_init(&pring->txcmplq, &txcmplq); | |
2409 | pring->txcmplq_cnt = 0; | |
2410 | spin_unlock_irq(&phba->hbalock); | |
2411 | ||
2412 | /* Flush the txq */ | |
2413 | while (!list_empty(&txq)) { | |
2414 | iocb = list_get_first(&txq, struct lpfc_iocbq, list); | |
2415 | cmd = &iocb->iocb; | |
2416 | list_del_init(&iocb->list); | |
2417 | ||
2418 | if (!iocb->iocb_cmpl) | |
2419 | lpfc_sli_release_iocbq(phba, iocb); | |
2420 | else { | |
2421 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
2422 | cmd->un.ulpWord[4] = IOERR_SLI_DOWN; | |
2423 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
2424 | } | |
2425 | } | |
2426 | ||
2427 | /* Flush the txcmpq */ | |
2428 | while (!list_empty(&txcmplq)) { | |
2429 | iocb = list_get_first(&txcmplq, struct lpfc_iocbq, list); | |
2430 | cmd = &iocb->iocb; | |
2431 | list_del_init(&iocb->list); | |
2432 | ||
2433 | if (!iocb->iocb_cmpl) | |
2434 | lpfc_sli_release_iocbq(phba, iocb); | |
2435 | else { | |
2436 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
2437 | cmd->un.ulpWord[4] = IOERR_SLI_DOWN; | |
2438 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
2439 | } | |
2440 | } | |
2441 | } | |
2442 | ||
e59058c4 JS |
2443 | /** |
2444 | * lpfc_sli_brdready: Check for host status bits. | |
2445 | * @phba: Pointer to HBA context object. | |
2446 | * @mask: Bit mask to be checked. | |
2447 | * | |
2448 | * This function reads the host status register and compares | |
2449 | * with the provided bit mask to check if HBA completed | |
2450 | * the restart. This function will wait in a loop for the | |
2451 | * HBA to complete restart. If the HBA does not restart within | |
2452 | * 15 iterations, the function will reset the HBA again. The | |
2453 | * function returns 1 when HBA fail to restart otherwise returns | |
2454 | * zero. | |
2455 | **/ | |
41415862 | 2456 | int |
2e0fef85 | 2457 | lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask) |
dea3101e | 2458 | { |
41415862 JW |
2459 | uint32_t status; |
2460 | int i = 0; | |
2461 | int retval = 0; | |
dea3101e | 2462 | |
41415862 JW |
2463 | /* Read the HBA Host Status Register */ |
2464 | status = readl(phba->HSregaddr); | |
dea3101e | 2465 | |
41415862 JW |
2466 | /* |
2467 | * Check status register every 100ms for 5 retries, then every | |
2468 | * 500ms for 5, then every 2.5 sec for 5, then reset board and | |
2469 | * every 2.5 sec for 4. | |
2470 | * Break our of the loop if errors occurred during init. | |
2471 | */ | |
2472 | while (((status & mask) != mask) && | |
2473 | !(status & HS_FFERM) && | |
2474 | i++ < 20) { | |
dea3101e | 2475 | |
41415862 JW |
2476 | if (i <= 5) |
2477 | msleep(10); | |
2478 | else if (i <= 10) | |
2479 | msleep(500); | |
2480 | else | |
2481 | msleep(2500); | |
dea3101e | 2482 | |
41415862 | 2483 | if (i == 15) { |
2e0fef85 | 2484 | /* Do post */ |
92d7f7b0 | 2485 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 JW |
2486 | lpfc_sli_brdrestart(phba); |
2487 | } | |
2488 | /* Read the HBA Host Status Register */ | |
2489 | status = readl(phba->HSregaddr); | |
2490 | } | |
dea3101e | 2491 | |
41415862 JW |
2492 | /* Check to see if any errors occurred during init */ |
2493 | if ((status & HS_FFERM) || (i >= 20)) { | |
2e0fef85 | 2494 | phba->link_state = LPFC_HBA_ERROR; |
41415862 | 2495 | retval = 1; |
dea3101e | 2496 | } |
dea3101e | 2497 | |
41415862 JW |
2498 | return retval; |
2499 | } | |
dea3101e | 2500 | |
9290831f JS |
2501 | #define BARRIER_TEST_PATTERN (0xdeadbeef) |
2502 | ||
e59058c4 JS |
2503 | /** |
2504 | * lpfc_reset_barrier: Make HBA ready for HBA reset. | |
2505 | * @phba: Pointer to HBA context object. | |
2506 | * | |
2507 | * This function is called before resetting an HBA. This | |
2508 | * function requests HBA to quiesce DMAs before a reset. | |
2509 | **/ | |
2e0fef85 | 2510 | void lpfc_reset_barrier(struct lpfc_hba *phba) |
9290831f | 2511 | { |
65a29c16 JS |
2512 | uint32_t __iomem *resp_buf; |
2513 | uint32_t __iomem *mbox_buf; | |
9290831f JS |
2514 | volatile uint32_t mbox; |
2515 | uint32_t hc_copy; | |
2516 | int i; | |
2517 | uint8_t hdrtype; | |
2518 | ||
2519 | pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype); | |
2520 | if (hdrtype != 0x80 || | |
2521 | (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID && | |
2522 | FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID)) | |
2523 | return; | |
2524 | ||
2525 | /* | |
2526 | * Tell the other part of the chip to suspend temporarily all | |
2527 | * its DMA activity. | |
2528 | */ | |
65a29c16 | 2529 | resp_buf = phba->MBslimaddr; |
9290831f JS |
2530 | |
2531 | /* Disable the error attention */ | |
2532 | hc_copy = readl(phba->HCregaddr); | |
2533 | writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr); | |
2534 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 | 2535 | phba->link_flag |= LS_IGNORE_ERATT; |
9290831f JS |
2536 | |
2537 | if (readl(phba->HAregaddr) & HA_ERATT) { | |
2538 | /* Clear Chip error bit */ | |
2539 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 2540 | phba->pport->stopped = 1; |
9290831f JS |
2541 | } |
2542 | ||
2543 | mbox = 0; | |
2544 | ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD; | |
2545 | ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP; | |
2546 | ||
2547 | writel(BARRIER_TEST_PATTERN, (resp_buf + 1)); | |
65a29c16 | 2548 | mbox_buf = phba->MBslimaddr; |
9290831f JS |
2549 | writel(mbox, mbox_buf); |
2550 | ||
2551 | for (i = 0; | |
2552 | readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++) | |
2553 | mdelay(1); | |
2554 | ||
2555 | if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) { | |
2556 | if (phba->sli.sli_flag & LPFC_SLI2_ACTIVE || | |
2e0fef85 | 2557 | phba->pport->stopped) |
9290831f JS |
2558 | goto restore_hc; |
2559 | else | |
2560 | goto clear_errat; | |
2561 | } | |
2562 | ||
2563 | ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST; | |
2564 | for (i = 0; readl(resp_buf) != mbox && i < 500; i++) | |
2565 | mdelay(1); | |
2566 | ||
2567 | clear_errat: | |
2568 | ||
2569 | while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500) | |
2570 | mdelay(1); | |
2571 | ||
2572 | if (readl(phba->HAregaddr) & HA_ERATT) { | |
2573 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 2574 | phba->pport->stopped = 1; |
9290831f JS |
2575 | } |
2576 | ||
2577 | restore_hc: | |
2e0fef85 | 2578 | phba->link_flag &= ~LS_IGNORE_ERATT; |
9290831f JS |
2579 | writel(hc_copy, phba->HCregaddr); |
2580 | readl(phba->HCregaddr); /* flush */ | |
2581 | } | |
2582 | ||
e59058c4 JS |
2583 | /** |
2584 | * lpfc_sli_brdkill: Issue a kill_board mailbox command. | |
2585 | * @phba: Pointer to HBA context object. | |
2586 | * | |
2587 | * This function issues a kill_board mailbox command and waits for | |
2588 | * the error attention interrupt. This function is called for stopping | |
2589 | * the firmware processing. The caller is not required to hold any | |
2590 | * locks. This function calls lpfc_hba_down_post function to free | |
2591 | * any pending commands after the kill. The function will return 1 when it | |
2592 | * fails to kill the board else will return 0. | |
2593 | **/ | |
41415862 | 2594 | int |
2e0fef85 | 2595 | lpfc_sli_brdkill(struct lpfc_hba *phba) |
41415862 JW |
2596 | { |
2597 | struct lpfc_sli *psli; | |
2598 | LPFC_MBOXQ_t *pmb; | |
2599 | uint32_t status; | |
2600 | uint32_t ha_copy; | |
2601 | int retval; | |
2602 | int i = 0; | |
dea3101e | 2603 | |
41415862 | 2604 | psli = &phba->sli; |
dea3101e | 2605 | |
41415862 | 2606 | /* Kill HBA */ |
ed957684 | 2607 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
e8b62011 JS |
2608 | "0329 Kill HBA Data: x%x x%x\n", |
2609 | phba->pport->port_state, psli->sli_flag); | |
41415862 | 2610 | |
98c9ea5c JS |
2611 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
2612 | if (!pmb) | |
41415862 | 2613 | return 1; |
41415862 JW |
2614 | |
2615 | /* Disable the error attention */ | |
2e0fef85 | 2616 | spin_lock_irq(&phba->hbalock); |
41415862 JW |
2617 | status = readl(phba->HCregaddr); |
2618 | status &= ~HC_ERINT_ENA; | |
2619 | writel(status, phba->HCregaddr); | |
2620 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 JS |
2621 | phba->link_flag |= LS_IGNORE_ERATT; |
2622 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
2623 | |
2624 | lpfc_kill_board(phba, pmb); | |
2625 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
2626 | retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
2627 | ||
2628 | if (retval != MBX_SUCCESS) { | |
2629 | if (retval != MBX_BUSY) | |
2630 | mempool_free(pmb, phba->mbox_mem_pool); | |
2e0fef85 JS |
2631 | spin_lock_irq(&phba->hbalock); |
2632 | phba->link_flag &= ~LS_IGNORE_ERATT; | |
2633 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
2634 | return 1; |
2635 | } | |
2636 | ||
9290831f JS |
2637 | psli->sli_flag &= ~LPFC_SLI2_ACTIVE; |
2638 | ||
41415862 JW |
2639 | mempool_free(pmb, phba->mbox_mem_pool); |
2640 | ||
2641 | /* There is no completion for a KILL_BOARD mbox cmd. Check for an error | |
2642 | * attention every 100ms for 3 seconds. If we don't get ERATT after | |
2643 | * 3 seconds we still set HBA_ERROR state because the status of the | |
2644 | * board is now undefined. | |
2645 | */ | |
2646 | ha_copy = readl(phba->HAregaddr); | |
2647 | ||
2648 | while ((i++ < 30) && !(ha_copy & HA_ERATT)) { | |
2649 | mdelay(100); | |
2650 | ha_copy = readl(phba->HAregaddr); | |
2651 | } | |
2652 | ||
2653 | del_timer_sync(&psli->mbox_tmo); | |
9290831f JS |
2654 | if (ha_copy & HA_ERATT) { |
2655 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 2656 | phba->pport->stopped = 1; |
9290831f | 2657 | } |
2e0fef85 | 2658 | spin_lock_irq(&phba->hbalock); |
41415862 | 2659 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 JS |
2660 | phba->link_flag &= ~LS_IGNORE_ERATT; |
2661 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
2662 | |
2663 | psli->mbox_active = NULL; | |
2664 | lpfc_hba_down_post(phba); | |
2e0fef85 | 2665 | phba->link_state = LPFC_HBA_ERROR; |
41415862 | 2666 | |
2e0fef85 | 2667 | return ha_copy & HA_ERATT ? 0 : 1; |
dea3101e JB |
2668 | } |
2669 | ||
e59058c4 JS |
2670 | /** |
2671 | * lpfc_sli_brdreset: Reset the HBA. | |
2672 | * @phba: Pointer to HBA context object. | |
2673 | * | |
2674 | * This function resets the HBA by writing HC_INITFF to the control | |
2675 | * register. After the HBA resets, this function resets all the iocb ring | |
2676 | * indices. This function disables PCI layer parity checking during | |
2677 | * the reset. | |
2678 | * This function returns 0 always. | |
2679 | * The caller is not required to hold any locks. | |
2680 | **/ | |
41415862 | 2681 | int |
2e0fef85 | 2682 | lpfc_sli_brdreset(struct lpfc_hba *phba) |
dea3101e | 2683 | { |
41415862 | 2684 | struct lpfc_sli *psli; |
dea3101e | 2685 | struct lpfc_sli_ring *pring; |
41415862 | 2686 | uint16_t cfg_value; |
dea3101e | 2687 | int i; |
dea3101e | 2688 | |
41415862 | 2689 | psli = &phba->sli; |
dea3101e | 2690 | |
41415862 JW |
2691 | /* Reset HBA */ |
2692 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 2693 | "0325 Reset HBA Data: x%x x%x\n", |
2e0fef85 | 2694 | phba->pport->port_state, psli->sli_flag); |
dea3101e JB |
2695 | |
2696 | /* perform board reset */ | |
2697 | phba->fc_eventTag = 0; | |
2e0fef85 JS |
2698 | phba->pport->fc_myDID = 0; |
2699 | phba->pport->fc_prevDID = 0; | |
dea3101e | 2700 | |
41415862 JW |
2701 | /* Turn off parity checking and serr during the physical reset */ |
2702 | pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value); | |
2703 | pci_write_config_word(phba->pcidev, PCI_COMMAND, | |
2704 | (cfg_value & | |
2705 | ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR))); | |
2706 | ||
1c067a42 | 2707 | psli->sli_flag &= ~(LPFC_SLI2_ACTIVE | LPFC_PROCESS_LA); |
41415862 JW |
2708 | /* Now toggle INITFF bit in the Host Control Register */ |
2709 | writel(HC_INITFF, phba->HCregaddr); | |
2710 | mdelay(1); | |
2711 | readl(phba->HCregaddr); /* flush */ | |
2712 | writel(0, phba->HCregaddr); | |
2713 | readl(phba->HCregaddr); /* flush */ | |
2714 | ||
2715 | /* Restore PCI cmd register */ | |
2716 | pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value); | |
dea3101e JB |
2717 | |
2718 | /* Initialize relevant SLI info */ | |
41415862 JW |
2719 | for (i = 0; i < psli->num_rings; i++) { |
2720 | pring = &psli->ring[i]; | |
dea3101e JB |
2721 | pring->flag = 0; |
2722 | pring->rspidx = 0; | |
2723 | pring->next_cmdidx = 0; | |
2724 | pring->local_getidx = 0; | |
2725 | pring->cmdidx = 0; | |
2726 | pring->missbufcnt = 0; | |
2727 | } | |
dea3101e | 2728 | |
2e0fef85 | 2729 | phba->link_state = LPFC_WARM_START; |
41415862 JW |
2730 | return 0; |
2731 | } | |
2732 | ||
e59058c4 JS |
2733 | /** |
2734 | * lpfc_sli_brdrestart: Restart the HBA. | |
2735 | * @phba: Pointer to HBA context object. | |
2736 | * | |
2737 | * This function is called in the SLI initialization code path to | |
2738 | * restart the HBA. The caller is not required to hold any lock. | |
2739 | * This function writes MBX_RESTART mailbox command to the SLIM and | |
2740 | * resets the HBA. At the end of the function, it calls lpfc_hba_down_post | |
2741 | * function to free any pending commands. The function enables | |
2742 | * POST only during the first initialization. The function returns zero. | |
2743 | * The function does not guarantee completion of MBX_RESTART mailbox | |
2744 | * command before the return of this function. | |
2745 | **/ | |
41415862 | 2746 | int |
2e0fef85 | 2747 | lpfc_sli_brdrestart(struct lpfc_hba *phba) |
41415862 JW |
2748 | { |
2749 | MAILBOX_t *mb; | |
2750 | struct lpfc_sli *psli; | |
2751 | uint16_t skip_post; | |
2752 | volatile uint32_t word0; | |
2753 | void __iomem *to_slim; | |
2754 | ||
2e0fef85 | 2755 | spin_lock_irq(&phba->hbalock); |
41415862 JW |
2756 | |
2757 | psli = &phba->sli; | |
2758 | ||
2759 | /* Restart HBA */ | |
2760 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 2761 | "0337 Restart HBA Data: x%x x%x\n", |
2e0fef85 | 2762 | phba->pport->port_state, psli->sli_flag); |
41415862 JW |
2763 | |
2764 | word0 = 0; | |
2765 | mb = (MAILBOX_t *) &word0; | |
2766 | mb->mbxCommand = MBX_RESTART; | |
2767 | mb->mbxHc = 1; | |
2768 | ||
9290831f JS |
2769 | lpfc_reset_barrier(phba); |
2770 | ||
41415862 JW |
2771 | to_slim = phba->MBslimaddr; |
2772 | writel(*(uint32_t *) mb, to_slim); | |
2773 | readl(to_slim); /* flush */ | |
2774 | ||
2775 | /* Only skip post after fc_ffinit is completed */ | |
2e0fef85 | 2776 | if (phba->pport->port_state) { |
41415862 JW |
2777 | skip_post = 1; |
2778 | word0 = 1; /* This is really setting up word1 */ | |
dea3101e | 2779 | } else { |
41415862 JW |
2780 | skip_post = 0; |
2781 | word0 = 0; /* This is really setting up word1 */ | |
dea3101e | 2782 | } |
65a29c16 | 2783 | to_slim = phba->MBslimaddr + sizeof (uint32_t); |
41415862 JW |
2784 | writel(*(uint32_t *) mb, to_slim); |
2785 | readl(to_slim); /* flush */ | |
dea3101e | 2786 | |
41415862 | 2787 | lpfc_sli_brdreset(phba); |
2e0fef85 JS |
2788 | phba->pport->stopped = 0; |
2789 | phba->link_state = LPFC_INIT_START; | |
41415862 | 2790 | |
2e0fef85 | 2791 | spin_unlock_irq(&phba->hbalock); |
41415862 | 2792 | |
64ba8818 JS |
2793 | memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets)); |
2794 | psli->stats_start = get_seconds(); | |
2795 | ||
41415862 JW |
2796 | if (skip_post) |
2797 | mdelay(100); | |
2798 | else | |
2799 | mdelay(2000); | |
2800 | ||
2801 | lpfc_hba_down_post(phba); | |
dea3101e JB |
2802 | |
2803 | return 0; | |
2804 | } | |
2805 | ||
e59058c4 JS |
2806 | /** |
2807 | * lpfc_sli_chipset_init: Wait for the restart of the HBA after a restart. | |
2808 | * @phba: Pointer to HBA context object. | |
2809 | * | |
2810 | * This function is called after a HBA restart to wait for successful | |
2811 | * restart of the HBA. Successful restart of the HBA is indicated by | |
2812 | * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15 | |
2813 | * iteration, the function will restart the HBA again. The function returns | |
2814 | * zero if HBA successfully restarted else returns negative error code. | |
2815 | **/ | |
dea3101e JB |
2816 | static int |
2817 | lpfc_sli_chipset_init(struct lpfc_hba *phba) | |
2818 | { | |
2819 | uint32_t status, i = 0; | |
2820 | ||
2821 | /* Read the HBA Host Status Register */ | |
2822 | status = readl(phba->HSregaddr); | |
2823 | ||
2824 | /* Check status register to see what current state is */ | |
2825 | i = 0; | |
2826 | while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) { | |
2827 | ||
2828 | /* Check every 100ms for 5 retries, then every 500ms for 5, then | |
2829 | * every 2.5 sec for 5, then reset board and every 2.5 sec for | |
2830 | * 4. | |
2831 | */ | |
2832 | if (i++ >= 20) { | |
2833 | /* Adapter failed to init, timeout, status reg | |
2834 | <status> */ | |
ed957684 | 2835 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 2836 | "0436 Adapter failed to init, " |
09372820 JS |
2837 | "timeout, status reg x%x, " |
2838 | "FW Data: A8 x%x AC x%x\n", status, | |
2839 | readl(phba->MBslimaddr + 0xa8), | |
2840 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 2841 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e JB |
2842 | return -ETIMEDOUT; |
2843 | } | |
2844 | ||
2845 | /* Check to see if any errors occurred during init */ | |
2846 | if (status & HS_FFERM) { | |
2847 | /* ERROR: During chipset initialization */ | |
2848 | /* Adapter failed to init, chipset, status reg | |
2849 | <status> */ | |
ed957684 | 2850 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 2851 | "0437 Adapter failed to init, " |
09372820 JS |
2852 | "chipset, status reg x%x, " |
2853 | "FW Data: A8 x%x AC x%x\n", status, | |
2854 | readl(phba->MBslimaddr + 0xa8), | |
2855 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 2856 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e JB |
2857 | return -EIO; |
2858 | } | |
2859 | ||
2860 | if (i <= 5) { | |
2861 | msleep(10); | |
2862 | } else if (i <= 10) { | |
2863 | msleep(500); | |
2864 | } else { | |
2865 | msleep(2500); | |
2866 | } | |
2867 | ||
2868 | if (i == 15) { | |
2e0fef85 | 2869 | /* Do post */ |
92d7f7b0 | 2870 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 | 2871 | lpfc_sli_brdrestart(phba); |
dea3101e JB |
2872 | } |
2873 | /* Read the HBA Host Status Register */ | |
2874 | status = readl(phba->HSregaddr); | |
2875 | } | |
2876 | ||
2877 | /* Check to see if any errors occurred during init */ | |
2878 | if (status & HS_FFERM) { | |
2879 | /* ERROR: During chipset initialization */ | |
2880 | /* Adapter failed to init, chipset, status reg <status> */ | |
ed957684 | 2881 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 2882 | "0438 Adapter failed to init, chipset, " |
09372820 JS |
2883 | "status reg x%x, " |
2884 | "FW Data: A8 x%x AC x%x\n", status, | |
2885 | readl(phba->MBslimaddr + 0xa8), | |
2886 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 2887 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e JB |
2888 | return -EIO; |
2889 | } | |
2890 | ||
2891 | /* Clear all interrupt enable conditions */ | |
2892 | writel(0, phba->HCregaddr); | |
2893 | readl(phba->HCregaddr); /* flush */ | |
2894 | ||
2895 | /* setup host attn register */ | |
2896 | writel(0xffffffff, phba->HAregaddr); | |
2897 | readl(phba->HAregaddr); /* flush */ | |
2898 | return 0; | |
2899 | } | |
2900 | ||
e59058c4 JS |
2901 | /** |
2902 | * lpfc_sli_hbq_count: Get the number of HBQs to be configured. | |
2903 | * | |
2904 | * This function calculates and returns the number of HBQs required to be | |
2905 | * configured. | |
2906 | **/ | |
78b2d852 | 2907 | int |
ed957684 JS |
2908 | lpfc_sli_hbq_count(void) |
2909 | { | |
92d7f7b0 | 2910 | return ARRAY_SIZE(lpfc_hbq_defs); |
ed957684 JS |
2911 | } |
2912 | ||
e59058c4 JS |
2913 | /** |
2914 | * lpfc_sli_hbq_entry_count: Calculate total number of hbq entries. | |
2915 | * | |
2916 | * This function adds the number of hbq entries in every HBQ to get | |
2917 | * the total number of hbq entries required for the HBA and returns | |
2918 | * the total count. | |
2919 | **/ | |
ed957684 JS |
2920 | static int |
2921 | lpfc_sli_hbq_entry_count(void) | |
2922 | { | |
2923 | int hbq_count = lpfc_sli_hbq_count(); | |
2924 | int count = 0; | |
2925 | int i; | |
2926 | ||
2927 | for (i = 0; i < hbq_count; ++i) | |
92d7f7b0 | 2928 | count += lpfc_hbq_defs[i]->entry_count; |
ed957684 JS |
2929 | return count; |
2930 | } | |
2931 | ||
e59058c4 JS |
2932 | /** |
2933 | * lpfc_sli_hbq_size: Calculate memory required for all hbq entries. | |
2934 | * | |
2935 | * This function calculates amount of memory required for all hbq entries | |
2936 | * to be configured and returns the total memory required. | |
2937 | **/ | |
dea3101e | 2938 | int |
ed957684 JS |
2939 | lpfc_sli_hbq_size(void) |
2940 | { | |
2941 | return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry); | |
2942 | } | |
2943 | ||
e59058c4 JS |
2944 | /** |
2945 | * lpfc_sli_hbq_setup: configure and initialize HBQs. | |
2946 | * @phba: Pointer to HBA context object. | |
2947 | * | |
2948 | * This function is called during the SLI initialization to configure | |
2949 | * all the HBQs and post buffers to the HBQ. The caller is not | |
2950 | * required to hold any locks. This function will return zero if successful | |
2951 | * else it will return negative error code. | |
2952 | **/ | |
ed957684 JS |
2953 | static int |
2954 | lpfc_sli_hbq_setup(struct lpfc_hba *phba) | |
2955 | { | |
2956 | int hbq_count = lpfc_sli_hbq_count(); | |
2957 | LPFC_MBOXQ_t *pmb; | |
2958 | MAILBOX_t *pmbox; | |
2959 | uint32_t hbqno; | |
2960 | uint32_t hbq_entry_index; | |
ed957684 | 2961 | |
92d7f7b0 JS |
2962 | /* Get a Mailbox buffer to setup mailbox |
2963 | * commands for HBA initialization | |
2964 | */ | |
ed957684 JS |
2965 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
2966 | ||
2967 | if (!pmb) | |
2968 | return -ENOMEM; | |
2969 | ||
2970 | pmbox = &pmb->mb; | |
2971 | ||
2972 | /* Initialize the struct lpfc_sli_hbq structure for each hbq */ | |
2973 | phba->link_state = LPFC_INIT_MBX_CMDS; | |
3163f725 | 2974 | phba->hbq_in_use = 1; |
ed957684 JS |
2975 | |
2976 | hbq_entry_index = 0; | |
2977 | for (hbqno = 0; hbqno < hbq_count; ++hbqno) { | |
2978 | phba->hbqs[hbqno].next_hbqPutIdx = 0; | |
2979 | phba->hbqs[hbqno].hbqPutIdx = 0; | |
2980 | phba->hbqs[hbqno].local_hbqGetIdx = 0; | |
2981 | phba->hbqs[hbqno].entry_count = | |
92d7f7b0 | 2982 | lpfc_hbq_defs[hbqno]->entry_count; |
51ef4c26 JS |
2983 | lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno], |
2984 | hbq_entry_index, pmb); | |
ed957684 JS |
2985 | hbq_entry_index += phba->hbqs[hbqno].entry_count; |
2986 | ||
2987 | if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { | |
2988 | /* Adapter failed to init, mbxCmd <cmd> CFG_RING, | |
2989 | mbxStatus <status>, ring <num> */ | |
2990 | ||
2991 | lpfc_printf_log(phba, KERN_ERR, | |
92d7f7b0 | 2992 | LOG_SLI | LOG_VPORT, |
e8b62011 | 2993 | "1805 Adapter failed to init. " |
ed957684 | 2994 | "Data: x%x x%x x%x\n", |
e8b62011 | 2995 | pmbox->mbxCommand, |
ed957684 JS |
2996 | pmbox->mbxStatus, hbqno); |
2997 | ||
2998 | phba->link_state = LPFC_HBA_ERROR; | |
2999 | mempool_free(pmb, phba->mbox_mem_pool); | |
ed957684 JS |
3000 | return ENXIO; |
3001 | } | |
3002 | } | |
3003 | phba->hbq_count = hbq_count; | |
3004 | ||
ed957684 JS |
3005 | mempool_free(pmb, phba->mbox_mem_pool); |
3006 | ||
92d7f7b0 | 3007 | /* Initially populate or replenish the HBQs */ |
d7c255b2 JS |
3008 | for (hbqno = 0; hbqno < hbq_count; ++hbqno) |
3009 | lpfc_sli_hbqbuf_init_hbqs(phba, hbqno); | |
ed957684 JS |
3010 | return 0; |
3011 | } | |
3012 | ||
e59058c4 JS |
3013 | /** |
3014 | * lpfc_do_config_port: Issue config port mailbox command. | |
3015 | * @phba: Pointer to HBA context object. | |
3016 | * @sli_mode: sli mode - 2/3 | |
3017 | * | |
3018 | * This function is called by the sli intialization code path | |
3019 | * to issue config_port mailbox command. This function restarts the | |
3020 | * HBA firmware and issues a config_port mailbox command to configure | |
3021 | * the SLI interface in the sli mode specified by sli_mode | |
3022 | * variable. The caller is not required to hold any locks. | |
3023 | * The function returns 0 if successful, else returns negative error | |
3024 | * code. | |
3025 | **/ | |
ed957684 JS |
3026 | static int |
3027 | lpfc_do_config_port(struct lpfc_hba *phba, int sli_mode) | |
dea3101e JB |
3028 | { |
3029 | LPFC_MBOXQ_t *pmb; | |
3030 | uint32_t resetcount = 0, rc = 0, done = 0; | |
3031 | ||
3032 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
3033 | if (!pmb) { | |
2e0fef85 | 3034 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e JB |
3035 | return -ENOMEM; |
3036 | } | |
3037 | ||
ed957684 | 3038 | phba->sli_rev = sli_mode; |
dea3101e | 3039 | while (resetcount < 2 && !done) { |
2e0fef85 | 3040 | spin_lock_irq(&phba->hbalock); |
1c067a42 | 3041 | phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3042 | spin_unlock_irq(&phba->hbalock); |
92d7f7b0 | 3043 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 | 3044 | lpfc_sli_brdrestart(phba); |
dea3101e JB |
3045 | msleep(2500); |
3046 | rc = lpfc_sli_chipset_init(phba); | |
3047 | if (rc) | |
3048 | break; | |
3049 | ||
2e0fef85 | 3050 | spin_lock_irq(&phba->hbalock); |
1c067a42 | 3051 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3052 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
3053 | resetcount++; |
3054 | ||
ed957684 JS |
3055 | /* Call pre CONFIG_PORT mailbox command initialization. A |
3056 | * value of 0 means the call was successful. Any other | |
3057 | * nonzero value is a failure, but if ERESTART is returned, | |
3058 | * the driver may reset the HBA and try again. | |
3059 | */ | |
dea3101e JB |
3060 | rc = lpfc_config_port_prep(phba); |
3061 | if (rc == -ERESTART) { | |
ed957684 | 3062 | phba->link_state = LPFC_LINK_UNKNOWN; |
dea3101e | 3063 | continue; |
34b02dcd | 3064 | } else if (rc) |
dea3101e | 3065 | break; |
2e0fef85 | 3066 | phba->link_state = LPFC_INIT_MBX_CMDS; |
dea3101e JB |
3067 | lpfc_config_port(phba, pmb); |
3068 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
34b02dcd JS |
3069 | phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED | |
3070 | LPFC_SLI3_HBQ_ENABLED | | |
3071 | LPFC_SLI3_CRP_ENABLED | | |
3072 | LPFC_SLI3_INB_ENABLED); | |
ed957684 | 3073 | if (rc != MBX_SUCCESS) { |
dea3101e | 3074 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 3075 | "0442 Adapter failed to init, mbxCmd x%x " |
92d7f7b0 | 3076 | "CONFIG_PORT, mbxStatus x%x Data: x%x\n", |
e8b62011 | 3077 | pmb->mb.mbxCommand, pmb->mb.mbxStatus, 0); |
2e0fef85 | 3078 | spin_lock_irq(&phba->hbalock); |
dea3101e | 3079 | phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE; |
2e0fef85 JS |
3080 | spin_unlock_irq(&phba->hbalock); |
3081 | rc = -ENXIO; | |
34b02dcd | 3082 | } else |
ed957684 | 3083 | done = 1; |
dea3101e | 3084 | } |
ed957684 JS |
3085 | if (!done) { |
3086 | rc = -EINVAL; | |
3087 | goto do_prep_failed; | |
3088 | } | |
34b02dcd JS |
3089 | if (pmb->mb.un.varCfgPort.sli_mode == 3) { |
3090 | if (!pmb->mb.un.varCfgPort.cMA) { | |
3091 | rc = -ENXIO; | |
3092 | goto do_prep_failed; | |
3093 | } | |
3094 | if (phba->max_vpi && pmb->mb.un.varCfgPort.gmv) { | |
3095 | phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; | |
3096 | phba->max_vpi = pmb->mb.un.varCfgPort.max_vpi; | |
3097 | } else | |
3098 | phba->max_vpi = 0; | |
3099 | if (pmb->mb.un.varCfgPort.gerbm) | |
3100 | phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED; | |
3101 | if (pmb->mb.un.varCfgPort.gcrp) | |
3102 | phba->sli3_options |= LPFC_SLI3_CRP_ENABLED; | |
3103 | if (pmb->mb.un.varCfgPort.ginb) { | |
3104 | phba->sli3_options |= LPFC_SLI3_INB_ENABLED; | |
3105 | phba->port_gp = phba->mbox->us.s3_inb_pgp.port; | |
3106 | phba->inb_ha_copy = &phba->mbox->us.s3_inb_pgp.ha_copy; | |
3107 | phba->inb_counter = &phba->mbox->us.s3_inb_pgp.counter; | |
3108 | phba->inb_last_counter = | |
3109 | phba->mbox->us.s3_inb_pgp.counter; | |
3110 | } else { | |
3111 | phba->port_gp = phba->mbox->us.s3_pgp.port; | |
3112 | phba->inb_ha_copy = NULL; | |
3113 | phba->inb_counter = NULL; | |
3114 | } | |
3115 | } else { | |
3116 | phba->port_gp = phba->mbox->us.s2.port; | |
3117 | phba->inb_ha_copy = NULL; | |
3118 | phba->inb_counter = NULL; | |
d7c255b2 | 3119 | phba->max_vpi = 0; |
ed957684 | 3120 | } |
92d7f7b0 | 3121 | do_prep_failed: |
ed957684 JS |
3122 | mempool_free(pmb, phba->mbox_mem_pool); |
3123 | return rc; | |
3124 | } | |
3125 | ||
e59058c4 JS |
3126 | |
3127 | /** | |
3128 | * lpfc_sli_hba_setup: SLI intialization function. | |
3129 | * @phba: Pointer to HBA context object. | |
3130 | * | |
3131 | * This function is the main SLI intialization function. This function | |
3132 | * is called by the HBA intialization code, HBA reset code and HBA | |
3133 | * error attention handler code. Caller is not required to hold any | |
3134 | * locks. This function issues config_port mailbox command to configure | |
3135 | * the SLI, setup iocb rings and HBQ rings. In the end the function | |
3136 | * calls the config_port_post function to issue init_link mailbox | |
3137 | * command and to start the discovery. The function will return zero | |
3138 | * if successful, else it will return negative error code. | |
3139 | **/ | |
ed957684 JS |
3140 | int |
3141 | lpfc_sli_hba_setup(struct lpfc_hba *phba) | |
3142 | { | |
3143 | uint32_t rc; | |
92d7f7b0 | 3144 | int mode = 3; |
ed957684 JS |
3145 | |
3146 | switch (lpfc_sli_mode) { | |
3147 | case 2: | |
78b2d852 | 3148 | if (phba->cfg_enable_npiv) { |
92d7f7b0 | 3149 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 | 3150 | "1824 NPIV enabled: Override lpfc_sli_mode " |
92d7f7b0 | 3151 | "parameter (%d) to auto (0).\n", |
e8b62011 | 3152 | lpfc_sli_mode); |
92d7f7b0 JS |
3153 | break; |
3154 | } | |
ed957684 JS |
3155 | mode = 2; |
3156 | break; | |
3157 | case 0: | |
3158 | case 3: | |
3159 | break; | |
3160 | default: | |
92d7f7b0 | 3161 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 JS |
3162 | "1819 Unrecognized lpfc_sli_mode " |
3163 | "parameter: %d.\n", lpfc_sli_mode); | |
ed957684 JS |
3164 | |
3165 | break; | |
3166 | } | |
3167 | ||
3168 | rc = lpfc_do_config_port(phba, mode); | |
3169 | if (rc && lpfc_sli_mode == 3) | |
92d7f7b0 | 3170 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 JS |
3171 | "1820 Unable to select SLI-3. " |
3172 | "Not supported by adapter.\n"); | |
ed957684 JS |
3173 | if (rc && mode != 2) |
3174 | rc = lpfc_do_config_port(phba, 2); | |
3175 | if (rc) | |
dea3101e JB |
3176 | goto lpfc_sli_hba_setup_error; |
3177 | ||
ed957684 JS |
3178 | if (phba->sli_rev == 3) { |
3179 | phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE; | |
3180 | phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE; | |
ed957684 JS |
3181 | } else { |
3182 | phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE; | |
3183 | phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE; | |
92d7f7b0 | 3184 | phba->sli3_options = 0; |
ed957684 JS |
3185 | } |
3186 | ||
3187 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
e8b62011 JS |
3188 | "0444 Firmware in SLI %x mode. Max_vpi %d\n", |
3189 | phba->sli_rev, phba->max_vpi); | |
ed957684 | 3190 | rc = lpfc_sli_ring_map(phba); |
dea3101e JB |
3191 | |
3192 | if (rc) | |
3193 | goto lpfc_sli_hba_setup_error; | |
3194 | ||
92d7f7b0 | 3195 | /* Init HBQs */ |
ed957684 JS |
3196 | |
3197 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { | |
3198 | rc = lpfc_sli_hbq_setup(phba); | |
3199 | if (rc) | |
3200 | goto lpfc_sli_hba_setup_error; | |
3201 | } | |
3202 | ||
dea3101e JB |
3203 | phba->sli.sli_flag |= LPFC_PROCESS_LA; |
3204 | ||
3205 | rc = lpfc_config_port_post(phba); | |
3206 | if (rc) | |
3207 | goto lpfc_sli_hba_setup_error; | |
3208 | ||
ed957684 JS |
3209 | return rc; |
3210 | ||
92d7f7b0 | 3211 | lpfc_sli_hba_setup_error: |
2e0fef85 | 3212 | phba->link_state = LPFC_HBA_ERROR; |
ed957684 | 3213 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
e8b62011 | 3214 | "0445 Firmware initialization failed\n"); |
dea3101e JB |
3215 | return rc; |
3216 | } | |
3217 | ||
e59058c4 JS |
3218 | |
3219 | /** | |
3220 | * lpfc_mbox_timeout: Timeout call back function for mbox timer. | |
3221 | * @ptr: context object - pointer to hba structure. | |
dea3101e | 3222 | * |
e59058c4 JS |
3223 | * This is the callback function for mailbox timer. The mailbox |
3224 | * timer is armed when a new mailbox command is issued and the timer | |
3225 | * is deleted when the mailbox complete. The function is called by | |
3226 | * the kernel timer code when a mailbox does not complete within | |
3227 | * expected time. This function wakes up the worker thread to | |
3228 | * process the mailbox timeout and returns. All the processing is | |
3229 | * done by the worker thread function lpfc_mbox_timeout_handler. | |
3230 | **/ | |
dea3101e JB |
3231 | void |
3232 | lpfc_mbox_timeout(unsigned long ptr) | |
3233 | { | |
92d7f7b0 | 3234 | struct lpfc_hba *phba = (struct lpfc_hba *) ptr; |
dea3101e | 3235 | unsigned long iflag; |
2e0fef85 | 3236 | uint32_t tmo_posted; |
dea3101e | 3237 | |
2e0fef85 | 3238 | spin_lock_irqsave(&phba->pport->work_port_lock, iflag); |
92d7f7b0 | 3239 | tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO; |
2e0fef85 JS |
3240 | if (!tmo_posted) |
3241 | phba->pport->work_port_events |= WORKER_MBOX_TMO; | |
3242 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); | |
3243 | ||
5e9d9b82 JS |
3244 | if (!tmo_posted) |
3245 | lpfc_worker_wake_up(phba); | |
3246 | return; | |
dea3101e JB |
3247 | } |
3248 | ||
e59058c4 JS |
3249 | |
3250 | /** | |
3251 | * lpfc_mbox_timeout_handler: Worker thread function to handle mailbox timeout. | |
3252 | * @phba: Pointer to HBA context object. | |
3253 | * | |
3254 | * This function is called from worker thread when a mailbox command times out. | |
3255 | * The caller is not required to hold any locks. This function will reset the | |
3256 | * HBA and recover all the pending commands. | |
3257 | **/ | |
dea3101e JB |
3258 | void |
3259 | lpfc_mbox_timeout_handler(struct lpfc_hba *phba) | |
3260 | { | |
2e0fef85 JS |
3261 | LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active; |
3262 | MAILBOX_t *mb = &pmbox->mb; | |
1dcb58e5 JS |
3263 | struct lpfc_sli *psli = &phba->sli; |
3264 | struct lpfc_sli_ring *pring; | |
dea3101e | 3265 | |
2e0fef85 | 3266 | if (!(phba->pport->work_port_events & WORKER_MBOX_TMO)) { |
dea3101e JB |
3267 | return; |
3268 | } | |
3269 | ||
dea3101e | 3270 | /* Mbox cmd <mbxCommand> timeout */ |
ed957684 | 3271 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
e8b62011 | 3272 | "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n", |
92d7f7b0 JS |
3273 | mb->mbxCommand, |
3274 | phba->pport->port_state, | |
3275 | phba->sli.sli_flag, | |
3276 | phba->sli.mbox_active); | |
dea3101e | 3277 | |
1dcb58e5 JS |
3278 | /* Setting state unknown so lpfc_sli_abort_iocb_ring |
3279 | * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing | |
3280 | * it to fail all oustanding SCSI IO. | |
3281 | */ | |
2e0fef85 JS |
3282 | spin_lock_irq(&phba->pport->work_port_lock); |
3283 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; | |
3284 | spin_unlock_irq(&phba->pport->work_port_lock); | |
3285 | spin_lock_irq(&phba->hbalock); | |
3286 | phba->link_state = LPFC_LINK_UNKNOWN; | |
1dcb58e5 | 3287 | psli->sli_flag &= ~LPFC_SLI2_ACTIVE; |
2e0fef85 | 3288 | spin_unlock_irq(&phba->hbalock); |
1dcb58e5 JS |
3289 | |
3290 | pring = &psli->ring[psli->fcp_ring]; | |
3291 | lpfc_sli_abort_iocb_ring(phba, pring); | |
3292 | ||
3293 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
76bb24ef | 3294 | "0345 Resetting board due to mailbox timeout\n"); |
1dcb58e5 JS |
3295 | /* |
3296 | * lpfc_offline calls lpfc_sli_hba_down which will clean up | |
3297 | * on oustanding mailbox commands. | |
3298 | */ | |
13815c83 JS |
3299 | /* If resets are disabled then set error state and return. */ |
3300 | if (!phba->cfg_enable_hba_reset) { | |
3301 | phba->link_state = LPFC_HBA_ERROR; | |
3302 | return; | |
3303 | } | |
1dcb58e5 JS |
3304 | lpfc_offline_prep(phba); |
3305 | lpfc_offline(phba); | |
3306 | lpfc_sli_brdrestart(phba); | |
58da1ffb | 3307 | lpfc_online(phba); |
1dcb58e5 | 3308 | lpfc_unblock_mgmt_io(phba); |
dea3101e JB |
3309 | return; |
3310 | } | |
3311 | ||
e59058c4 JS |
3312 | /** |
3313 | * lpfc_sli_issue_mbox: Issue a mailbox command to firmware. | |
3314 | * @phba: Pointer to HBA context object. | |
3315 | * @pmbox: Pointer to mailbox object. | |
3316 | * @flag: Flag indicating how the mailbox need to be processed. | |
3317 | * | |
3318 | * This function is called by discovery code and HBA management code | |
3319 | * to submit a mailbox command to firmware. This function gets the | |
3320 | * hbalock to protect the data structures. | |
3321 | * The mailbox command can be submitted in polling mode, in which case | |
3322 | * this function will wait in a polling loop for the completion of the | |
3323 | * mailbox. | |
3324 | * If the mailbox is submitted in no_wait mode (not polling) the | |
3325 | * function will submit the command and returns immediately without waiting | |
3326 | * for the mailbox completion. The no_wait is supported only when HBA | |
3327 | * is in SLI2/SLI3 mode - interrupts are enabled. | |
3328 | * The SLI interface allows only one mailbox pending at a time. If the | |
3329 | * mailbox is issued in polling mode and there is already a mailbox | |
3330 | * pending, then the function will return an error. If the mailbox is issued | |
3331 | * in NO_WAIT mode and there is a mailbox pending already, the function | |
3332 | * will return MBX_BUSY after queuing the mailbox into mailbox queue. | |
3333 | * The sli layer owns the mailbox object until the completion of mailbox | |
3334 | * command if this function return MBX_BUSY or MBX_SUCCESS. For all other | |
3335 | * return codes the caller owns the mailbox command after the return of | |
3336 | * the function. | |
3337 | **/ | |
dea3101e | 3338 | int |
2e0fef85 | 3339 | lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag) |
dea3101e | 3340 | { |
dea3101e | 3341 | MAILBOX_t *mb; |
2e0fef85 | 3342 | struct lpfc_sli *psli = &phba->sli; |
dea3101e JB |
3343 | uint32_t status, evtctr; |
3344 | uint32_t ha_copy; | |
3345 | int i; | |
09372820 | 3346 | unsigned long timeout; |
dea3101e | 3347 | unsigned long drvr_flag = 0; |
34b02dcd | 3348 | uint32_t word0, ldata; |
dea3101e | 3349 | void __iomem *to_slim; |
58da1ffb JS |
3350 | int processing_queue = 0; |
3351 | ||
3352 | spin_lock_irqsave(&phba->hbalock, drvr_flag); | |
3353 | if (!pmbox) { | |
3354 | /* processing mbox queue from intr_handler */ | |
3355 | processing_queue = 1; | |
3356 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
3357 | pmbox = lpfc_mbox_get(phba); | |
3358 | if (!pmbox) { | |
3359 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
3360 | return MBX_SUCCESS; | |
3361 | } | |
3362 | } | |
dea3101e | 3363 | |
ed957684 | 3364 | if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl && |
92d7f7b0 | 3365 | pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) { |
ed957684 | 3366 | if(!pmbox->vport) { |
58da1ffb | 3367 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
ed957684 | 3368 | lpfc_printf_log(phba, KERN_ERR, |
92d7f7b0 | 3369 | LOG_MBOX | LOG_VPORT, |
e8b62011 | 3370 | "1806 Mbox x%x failed. No vport\n", |
ed957684 JS |
3371 | pmbox->mb.mbxCommand); |
3372 | dump_stack(); | |
58da1ffb | 3373 | goto out_not_finished; |
ed957684 JS |
3374 | } |
3375 | } | |
3376 | ||
8d63f375 | 3377 | /* If the PCI channel is in offline state, do not post mbox. */ |
58da1ffb JS |
3378 | if (unlikely(pci_channel_offline(phba->pcidev))) { |
3379 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
3380 | goto out_not_finished; | |
3381 | } | |
8d63f375 | 3382 | |
dea3101e | 3383 | psli = &phba->sli; |
92d7f7b0 | 3384 | |
dea3101e JB |
3385 | mb = &pmbox->mb; |
3386 | status = MBX_SUCCESS; | |
3387 | ||
2e0fef85 JS |
3388 | if (phba->link_state == LPFC_HBA_ERROR) { |
3389 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
41415862 JW |
3390 | |
3391 | /* Mbox command <mbxCommand> cannot issue */ | |
7f5f3d0d | 3392 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); |
58da1ffb | 3393 | goto out_not_finished; |
41415862 JW |
3394 | } |
3395 | ||
9290831f JS |
3396 | if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT && |
3397 | !(readl(phba->HCregaddr) & HC_MBINT_ENA)) { | |
2e0fef85 | 3398 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
7f5f3d0d | 3399 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); |
58da1ffb | 3400 | goto out_not_finished; |
9290831f JS |
3401 | } |
3402 | ||
dea3101e JB |
3403 | if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { |
3404 | /* Polling for a mbox command when another one is already active | |
3405 | * is not allowed in SLI. Also, the driver must have established | |
3406 | * SLI2 mode to queue and process multiple mbox commands. | |
3407 | */ | |
3408 | ||
3409 | if (flag & MBX_POLL) { | |
2e0fef85 | 3410 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e JB |
3411 | |
3412 | /* Mbox command <mbxCommand> cannot issue */ | |
92d7f7b0 | 3413 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); |
58da1ffb | 3414 | goto out_not_finished; |
dea3101e JB |
3415 | } |
3416 | ||
3417 | if (!(psli->sli_flag & LPFC_SLI2_ACTIVE)) { | |
2e0fef85 | 3418 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 3419 | /* Mbox command <mbxCommand> cannot issue */ |
92d7f7b0 | 3420 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); |
58da1ffb | 3421 | goto out_not_finished; |
dea3101e JB |
3422 | } |
3423 | ||
dea3101e JB |
3424 | /* Another mailbox command is still being processed, queue this |
3425 | * command to be processed later. | |
3426 | */ | |
3427 | lpfc_mbox_put(phba, pmbox); | |
3428 | ||
3429 | /* Mbox cmd issue - BUSY */ | |
ed957684 | 3430 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
e8b62011 | 3431 | "(%d):0308 Mbox cmd issue - BUSY Data: " |
92d7f7b0 | 3432 | "x%x x%x x%x x%x\n", |
92d7f7b0 JS |
3433 | pmbox->vport ? pmbox->vport->vpi : 0xffffff, |
3434 | mb->mbxCommand, phba->pport->port_state, | |
3435 | psli->sli_flag, flag); | |
dea3101e JB |
3436 | |
3437 | psli->slistat.mbox_busy++; | |
2e0fef85 | 3438 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 3439 | |
858c9f6c JS |
3440 | if (pmbox->vport) { |
3441 | lpfc_debugfs_disc_trc(pmbox->vport, | |
3442 | LPFC_DISC_TRC_MBOX_VPORT, | |
3443 | "MBOX Bsy vport: cmd:x%x mb:x%x x%x", | |
3444 | (uint32_t)mb->mbxCommand, | |
3445 | mb->un.varWords[0], mb->un.varWords[1]); | |
3446 | } | |
3447 | else { | |
3448 | lpfc_debugfs_disc_trc(phba->pport, | |
3449 | LPFC_DISC_TRC_MBOX, | |
3450 | "MBOX Bsy: cmd:x%x mb:x%x x%x", | |
3451 | (uint32_t)mb->mbxCommand, | |
3452 | mb->un.varWords[0], mb->un.varWords[1]); | |
3453 | } | |
3454 | ||
2e0fef85 | 3455 | return MBX_BUSY; |
dea3101e JB |
3456 | } |
3457 | ||
dea3101e JB |
3458 | psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; |
3459 | ||
3460 | /* If we are not polling, we MUST be in SLI2 mode */ | |
3461 | if (flag != MBX_POLL) { | |
41415862 JW |
3462 | if (!(psli->sli_flag & LPFC_SLI2_ACTIVE) && |
3463 | (mb->mbxCommand != MBX_KILL_BOARD)) { | |
dea3101e | 3464 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3465 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 3466 | /* Mbox command <mbxCommand> cannot issue */ |
92d7f7b0 | 3467 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); |
58da1ffb | 3468 | goto out_not_finished; |
dea3101e JB |
3469 | } |
3470 | /* timeout active mbox command */ | |
a309a6b6 JS |
3471 | mod_timer(&psli->mbox_tmo, (jiffies + |
3472 | (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand)))); | |
dea3101e JB |
3473 | } |
3474 | ||
3475 | /* Mailbox cmd <cmd> issue */ | |
ed957684 | 3476 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
e8b62011 | 3477 | "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x " |
92d7f7b0 | 3478 | "x%x\n", |
e8b62011 | 3479 | pmbox->vport ? pmbox->vport->vpi : 0, |
92d7f7b0 JS |
3480 | mb->mbxCommand, phba->pport->port_state, |
3481 | psli->sli_flag, flag); | |
dea3101e | 3482 | |
858c9f6c JS |
3483 | if (mb->mbxCommand != MBX_HEARTBEAT) { |
3484 | if (pmbox->vport) { | |
3485 | lpfc_debugfs_disc_trc(pmbox->vport, | |
3486 | LPFC_DISC_TRC_MBOX_VPORT, | |
3487 | "MBOX Send vport: cmd:x%x mb:x%x x%x", | |
3488 | (uint32_t)mb->mbxCommand, | |
3489 | mb->un.varWords[0], mb->un.varWords[1]); | |
3490 | } | |
3491 | else { | |
3492 | lpfc_debugfs_disc_trc(phba->pport, | |
3493 | LPFC_DISC_TRC_MBOX, | |
3494 | "MBOX Send: cmd:x%x mb:x%x x%x", | |
3495 | (uint32_t)mb->mbxCommand, | |
3496 | mb->un.varWords[0], mb->un.varWords[1]); | |
3497 | } | |
3498 | } | |
3499 | ||
dea3101e JB |
3500 | psli->slistat.mbox_cmd++; |
3501 | evtctr = psli->slistat.mbox_event; | |
3502 | ||
3503 | /* next set own bit for the adapter and copy over command word */ | |
3504 | mb->mbxOwner = OWN_CHIP; | |
3505 | ||
3506 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
dea3101e | 3507 | /* First copy command data to host SLIM area */ |
34b02dcd | 3508 | lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE); |
dea3101e | 3509 | } else { |
9290831f | 3510 | if (mb->mbxCommand == MBX_CONFIG_PORT) { |
dea3101e | 3511 | /* copy command data into host mbox for cmpl */ |
34b02dcd | 3512 | lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE); |
dea3101e JB |
3513 | } |
3514 | ||
3515 | /* First copy mbox command data to HBA SLIM, skip past first | |
3516 | word */ | |
3517 | to_slim = phba->MBslimaddr + sizeof (uint32_t); | |
3518 | lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0], | |
3519 | MAILBOX_CMD_SIZE - sizeof (uint32_t)); | |
3520 | ||
3521 | /* Next copy over first word, with mbxOwner set */ | |
34b02dcd | 3522 | ldata = *((uint32_t *)mb); |
dea3101e JB |
3523 | to_slim = phba->MBslimaddr; |
3524 | writel(ldata, to_slim); | |
3525 | readl(to_slim); /* flush */ | |
3526 | ||
3527 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
3528 | /* switch over to host mailbox */ | |
3529 | psli->sli_flag |= LPFC_SLI2_ACTIVE; | |
3530 | } | |
3531 | } | |
3532 | ||
3533 | wmb(); | |
dea3101e JB |
3534 | |
3535 | switch (flag) { | |
3536 | case MBX_NOWAIT: | |
09372820 | 3537 | /* Set up reference to mailbox command */ |
dea3101e | 3538 | psli->mbox_active = pmbox; |
09372820 JS |
3539 | /* Interrupt board to do it */ |
3540 | writel(CA_MBATT, phba->CAregaddr); | |
3541 | readl(phba->CAregaddr); /* flush */ | |
3542 | /* Don't wait for it to finish, just return */ | |
dea3101e JB |
3543 | break; |
3544 | ||
3545 | case MBX_POLL: | |
09372820 | 3546 | /* Set up null reference to mailbox command */ |
dea3101e | 3547 | psli->mbox_active = NULL; |
09372820 JS |
3548 | /* Interrupt board to do it */ |
3549 | writel(CA_MBATT, phba->CAregaddr); | |
3550 | readl(phba->CAregaddr); /* flush */ | |
3551 | ||
dea3101e JB |
3552 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { |
3553 | /* First read mbox status word */ | |
34b02dcd | 3554 | word0 = *((uint32_t *)phba->mbox); |
dea3101e JB |
3555 | word0 = le32_to_cpu(word0); |
3556 | } else { | |
3557 | /* First read mbox status word */ | |
3558 | word0 = readl(phba->MBslimaddr); | |
3559 | } | |
3560 | ||
3561 | /* Read the HBA Host Attention Register */ | |
3562 | ha_copy = readl(phba->HAregaddr); | |
09372820 JS |
3563 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, |
3564 | mb->mbxCommand) * | |
3565 | 1000) + jiffies; | |
3566 | i = 0; | |
dea3101e | 3567 | /* Wait for command to complete */ |
41415862 JW |
3568 | while (((word0 & OWN_CHIP) == OWN_CHIP) || |
3569 | (!(ha_copy & HA_MBATT) && | |
2e0fef85 | 3570 | (phba->link_state > LPFC_WARM_START))) { |
09372820 | 3571 | if (time_after(jiffies, timeout)) { |
dea3101e | 3572 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3573 | spin_unlock_irqrestore(&phba->hbalock, |
dea3101e | 3574 | drvr_flag); |
58da1ffb | 3575 | goto out_not_finished; |
dea3101e JB |
3576 | } |
3577 | ||
3578 | /* Check if we took a mbox interrupt while we were | |
3579 | polling */ | |
3580 | if (((word0 & OWN_CHIP) != OWN_CHIP) | |
3581 | && (evtctr != psli->slistat.mbox_event)) | |
3582 | break; | |
3583 | ||
09372820 JS |
3584 | if (i++ > 10) { |
3585 | spin_unlock_irqrestore(&phba->hbalock, | |
3586 | drvr_flag); | |
3587 | msleep(1); | |
3588 | spin_lock_irqsave(&phba->hbalock, drvr_flag); | |
3589 | } | |
dea3101e JB |
3590 | |
3591 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
3592 | /* First copy command data */ | |
34b02dcd | 3593 | word0 = *((uint32_t *)phba->mbox); |
dea3101e JB |
3594 | word0 = le32_to_cpu(word0); |
3595 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
3596 | MAILBOX_t *slimmb; | |
34b02dcd | 3597 | uint32_t slimword0; |
dea3101e JB |
3598 | /* Check real SLIM for any errors */ |
3599 | slimword0 = readl(phba->MBslimaddr); | |
3600 | slimmb = (MAILBOX_t *) & slimword0; | |
3601 | if (((slimword0 & OWN_CHIP) != OWN_CHIP) | |
3602 | && slimmb->mbxStatus) { | |
3603 | psli->sli_flag &= | |
3604 | ~LPFC_SLI2_ACTIVE; | |
3605 | word0 = slimword0; | |
3606 | } | |
3607 | } | |
3608 | } else { | |
3609 | /* First copy command data */ | |
3610 | word0 = readl(phba->MBslimaddr); | |
3611 | } | |
3612 | /* Read the HBA Host Attention Register */ | |
3613 | ha_copy = readl(phba->HAregaddr); | |
3614 | } | |
3615 | ||
3616 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
dea3101e | 3617 | /* copy results back to user */ |
34b02dcd | 3618 | lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE); |
dea3101e JB |
3619 | } else { |
3620 | /* First copy command data */ | |
3621 | lpfc_memcpy_from_slim(mb, phba->MBslimaddr, | |
3622 | MAILBOX_CMD_SIZE); | |
3623 | if ((mb->mbxCommand == MBX_DUMP_MEMORY) && | |
3624 | pmbox->context2) { | |
92d7f7b0 | 3625 | lpfc_memcpy_from_slim((void *)pmbox->context2, |
dea3101e JB |
3626 | phba->MBslimaddr + DMP_RSP_OFFSET, |
3627 | mb->un.varDmp.word_cnt); | |
3628 | } | |
3629 | } | |
3630 | ||
3631 | writel(HA_MBATT, phba->HAregaddr); | |
3632 | readl(phba->HAregaddr); /* flush */ | |
3633 | ||
3634 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
3635 | status = mb->mbxStatus; | |
3636 | } | |
3637 | ||
2e0fef85 JS |
3638 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
3639 | return status; | |
58da1ffb JS |
3640 | |
3641 | out_not_finished: | |
3642 | if (processing_queue) { | |
3643 | pmbox->mb.mbxStatus = MBX_NOT_FINISHED; | |
3644 | lpfc_mbox_cmpl_put(phba, pmbox); | |
3645 | } | |
3646 | return MBX_NOT_FINISHED; | |
dea3101e JB |
3647 | } |
3648 | ||
e59058c4 JS |
3649 | /** |
3650 | * __lpfc_sli_ringtx_put: Add an iocb to the txq. | |
3651 | * @phba: Pointer to HBA context object. | |
3652 | * @pring: Pointer to driver SLI ring object. | |
3653 | * @piocb: Pointer to address of newly added command iocb. | |
3654 | * | |
3655 | * This function is called with hbalock held to add a command | |
3656 | * iocb to the txq when SLI layer cannot submit the command iocb | |
3657 | * to the ring. | |
3658 | **/ | |
858c9f6c | 3659 | static void |
92d7f7b0 | 3660 | __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
2e0fef85 | 3661 | struct lpfc_iocbq *piocb) |
dea3101e JB |
3662 | { |
3663 | /* Insert the caller's iocb in the txq tail for later processing. */ | |
3664 | list_add_tail(&piocb->list, &pring->txq); | |
3665 | pring->txq_cnt++; | |
dea3101e JB |
3666 | } |
3667 | ||
e59058c4 JS |
3668 | /** |
3669 | * lpfc_sli_next_iocb: Get the next iocb in the txq. | |
3670 | * @phba: Pointer to HBA context object. | |
3671 | * @pring: Pointer to driver SLI ring object. | |
3672 | * @piocb: Pointer to address of newly added command iocb. | |
3673 | * | |
3674 | * This function is called with hbalock held before a new | |
3675 | * iocb is submitted to the firmware. This function checks | |
3676 | * txq to flush the iocbs in txq to Firmware before | |
3677 | * submitting new iocbs to the Firmware. | |
3678 | * If there are iocbs in the txq which need to be submitted | |
3679 | * to firmware, lpfc_sli_next_iocb returns the first element | |
3680 | * of the txq after dequeuing it from txq. | |
3681 | * If there is no iocb in the txq then the function will return | |
3682 | * *piocb and *piocb is set to NULL. Caller needs to check | |
3683 | * *piocb to find if there are more commands in the txq. | |
3684 | **/ | |
dea3101e JB |
3685 | static struct lpfc_iocbq * |
3686 | lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2e0fef85 | 3687 | struct lpfc_iocbq **piocb) |
dea3101e JB |
3688 | { |
3689 | struct lpfc_iocbq * nextiocb; | |
3690 | ||
3691 | nextiocb = lpfc_sli_ringtx_get(phba, pring); | |
3692 | if (!nextiocb) { | |
3693 | nextiocb = *piocb; | |
3694 | *piocb = NULL; | |
3695 | } | |
3696 | ||
3697 | return nextiocb; | |
3698 | } | |
3699 | ||
e59058c4 JS |
3700 | /** |
3701 | * __lpfc_sli_issue_iocb: Lockless version of lpfc_sli_issue_iocb. | |
3702 | * @phba: Pointer to HBA context object. | |
3703 | * @pring: Pointer to driver SLI ring object. | |
3704 | * @piocb: Pointer to command iocb. | |
3705 | * @flag: Flag indicating if this command can be put into txq. | |
3706 | * | |
3707 | * __lpfc_sli_issue_iocb is used by other functions in the driver | |
3708 | * to issue an iocb command to the HBA. If the PCI slot is recovering | |
3709 | * from error state or if HBA is resetting or if LPFC_STOP_IOCB_EVENT | |
3710 | * flag is turned on, the function returns IOCB_ERROR. | |
3711 | * When the link is down, this function allows only iocbs for | |
3712 | * posting buffers. | |
3713 | * This function finds next available slot in the command ring and | |
3714 | * posts the command to the available slot and writes the port | |
3715 | * attention register to request HBA start processing new iocb. | |
3716 | * If there is no slot available in the ring and | |
3717 | * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the | |
3718 | * txq, otherwise the function returns IOCB_BUSY. | |
3719 | * | |
3720 | * This function is called with hbalock held. | |
3721 | * The function will return success after it successfully submit the | |
3722 | * iocb to firmware or after adding to the txq. | |
3723 | **/ | |
98c9ea5c | 3724 | static int |
92d7f7b0 | 3725 | __lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
dea3101e JB |
3726 | struct lpfc_iocbq *piocb, uint32_t flag) |
3727 | { | |
3728 | struct lpfc_iocbq *nextiocb; | |
3729 | IOCB_t *iocb; | |
3730 | ||
92d7f7b0 JS |
3731 | if (piocb->iocb_cmpl && (!piocb->vport) && |
3732 | (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) && | |
3733 | (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) { | |
3734 | lpfc_printf_log(phba, KERN_ERR, | |
3735 | LOG_SLI | LOG_VPORT, | |
e8b62011 | 3736 | "1807 IOCB x%x failed. No vport\n", |
92d7f7b0 JS |
3737 | piocb->iocb.ulpCommand); |
3738 | dump_stack(); | |
3739 | return IOCB_ERROR; | |
3740 | } | |
3741 | ||
3742 | ||
8d63f375 LV |
3743 | /* If the PCI channel is in offline state, do not post iocbs. */ |
3744 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
3745 | return IOCB_ERROR; | |
3746 | ||
dea3101e JB |
3747 | /* |
3748 | * We should never get an IOCB if we are in a < LINK_DOWN state | |
3749 | */ | |
2e0fef85 | 3750 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) |
dea3101e JB |
3751 | return IOCB_ERROR; |
3752 | ||
3753 | /* | |
3754 | * Check to see if we are blocking IOCB processing because of a | |
0b727fea | 3755 | * outstanding event. |
dea3101e | 3756 | */ |
0b727fea | 3757 | if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT)) |
dea3101e JB |
3758 | goto iocb_busy; |
3759 | ||
2e0fef85 | 3760 | if (unlikely(phba->link_state == LPFC_LINK_DOWN)) { |
dea3101e | 3761 | /* |
2680eeaa | 3762 | * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF |
dea3101e JB |
3763 | * can be issued if the link is not up. |
3764 | */ | |
3765 | switch (piocb->iocb.ulpCommand) { | |
84774a4d JS |
3766 | case CMD_GEN_REQUEST64_CR: |
3767 | case CMD_GEN_REQUEST64_CX: | |
3768 | if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) || | |
3769 | (piocb->iocb.un.genreq64.w5.hcsw.Rctl != | |
3770 | FC_FCP_CMND) || | |
3771 | (piocb->iocb.un.genreq64.w5.hcsw.Type != | |
3772 | MENLO_TRANSPORT_TYPE)) | |
3773 | ||
3774 | goto iocb_busy; | |
3775 | break; | |
dea3101e JB |
3776 | case CMD_QUE_RING_BUF_CN: |
3777 | case CMD_QUE_RING_BUF64_CN: | |
dea3101e JB |
3778 | /* |
3779 | * For IOCBs, like QUE_RING_BUF, that have no rsp ring | |
3780 | * completion, iocb_cmpl MUST be 0. | |
3781 | */ | |
3782 | if (piocb->iocb_cmpl) | |
3783 | piocb->iocb_cmpl = NULL; | |
3784 | /*FALLTHROUGH*/ | |
3785 | case CMD_CREATE_XRI_CR: | |
2680eeaa JS |
3786 | case CMD_CLOSE_XRI_CN: |
3787 | case CMD_CLOSE_XRI_CX: | |
dea3101e JB |
3788 | break; |
3789 | default: | |
3790 | goto iocb_busy; | |
3791 | } | |
3792 | ||
3793 | /* | |
3794 | * For FCP commands, we must be in a state where we can process link | |
3795 | * attention events. | |
3796 | */ | |
3797 | } else if (unlikely(pring->ringno == phba->sli.fcp_ring && | |
92d7f7b0 | 3798 | !(phba->sli.sli_flag & LPFC_PROCESS_LA))) { |
dea3101e | 3799 | goto iocb_busy; |
92d7f7b0 | 3800 | } |
dea3101e | 3801 | |
dea3101e JB |
3802 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && |
3803 | (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb))) | |
3804 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
3805 | ||
3806 | if (iocb) | |
3807 | lpfc_sli_update_ring(phba, pring); | |
3808 | else | |
3809 | lpfc_sli_update_full_ring(phba, pring); | |
3810 | ||
3811 | if (!piocb) | |
3812 | return IOCB_SUCCESS; | |
3813 | ||
3814 | goto out_busy; | |
3815 | ||
3816 | iocb_busy: | |
3817 | pring->stats.iocb_cmd_delay++; | |
3818 | ||
3819 | out_busy: | |
3820 | ||
3821 | if (!(flag & SLI_IOCB_RET_IOCB)) { | |
92d7f7b0 | 3822 | __lpfc_sli_ringtx_put(phba, pring, piocb); |
dea3101e JB |
3823 | return IOCB_SUCCESS; |
3824 | } | |
3825 | ||
3826 | return IOCB_BUSY; | |
3827 | } | |
3828 | ||
92d7f7b0 | 3829 | |
e59058c4 JS |
3830 | /** |
3831 | * lpfc_sli_issue_iocb: Wrapper function for __lpfc_sli_issue_iocb. | |
3832 | * @phba: Pointer to HBA context object. | |
3833 | * @pring: Pointer to driver SLI ring object. | |
3834 | * @piocb: Pointer to command iocb. | |
3835 | * @flag: Flag indicating if this command can be put into txq. | |
3836 | * | |
3837 | * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb | |
3838 | * function. This function gets the hbalock and calls | |
3839 | * __lpfc_sli_issue_iocb function and will return the error returned | |
3840 | * by __lpfc_sli_issue_iocb function. This wrapper is used by | |
3841 | * functions which do not hold hbalock. | |
3842 | **/ | |
92d7f7b0 JS |
3843 | int |
3844 | lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
3845 | struct lpfc_iocbq *piocb, uint32_t flag) | |
3846 | { | |
3847 | unsigned long iflags; | |
3848 | int rc; | |
3849 | ||
3850 | spin_lock_irqsave(&phba->hbalock, iflags); | |
3851 | rc = __lpfc_sli_issue_iocb(phba, pring, piocb, flag); | |
3852 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
3853 | ||
3854 | return rc; | |
3855 | } | |
3856 | ||
e59058c4 JS |
3857 | /** |
3858 | * lpfc_extra_ring_setup: Extra ring setup function. | |
3859 | * @phba: Pointer to HBA context object. | |
3860 | * | |
3861 | * This function is called while driver attaches with the | |
3862 | * HBA to setup the extra ring. The extra ring is used | |
3863 | * only when driver needs to support target mode functionality | |
3864 | * or IP over FC functionalities. | |
3865 | * | |
3866 | * This function is called with no lock held. | |
3867 | **/ | |
cf5bf97e JW |
3868 | static int |
3869 | lpfc_extra_ring_setup( struct lpfc_hba *phba) | |
3870 | { | |
3871 | struct lpfc_sli *psli; | |
3872 | struct lpfc_sli_ring *pring; | |
3873 | ||
3874 | psli = &phba->sli; | |
3875 | ||
3876 | /* Adjust cmd/rsp ring iocb entries more evenly */ | |
a4bc3379 JS |
3877 | |
3878 | /* Take some away from the FCP ring */ | |
cf5bf97e JW |
3879 | pring = &psli->ring[psli->fcp_ring]; |
3880 | pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
3881 | pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
3882 | pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
3883 | pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
3884 | ||
a4bc3379 JS |
3885 | /* and give them to the extra ring */ |
3886 | pring = &psli->ring[psli->extra_ring]; | |
3887 | ||
cf5bf97e JW |
3888 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; |
3889 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
3890 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
3891 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
3892 | ||
3893 | /* Setup default profile for this ring */ | |
3894 | pring->iotag_max = 4096; | |
3895 | pring->num_mask = 1; | |
3896 | pring->prt[0].profile = 0; /* Mask 0 */ | |
a4bc3379 JS |
3897 | pring->prt[0].rctl = phba->cfg_multi_ring_rctl; |
3898 | pring->prt[0].type = phba->cfg_multi_ring_type; | |
cf5bf97e JW |
3899 | pring->prt[0].lpfc_sli_rcv_unsol_event = NULL; |
3900 | return 0; | |
3901 | } | |
3902 | ||
e59058c4 JS |
3903 | /** |
3904 | * lpfc_sli_async_event_handler: ASYNC iocb handler function. | |
3905 | * @phba: Pointer to HBA context object. | |
3906 | * @pring: Pointer to driver SLI ring object. | |
3907 | * @iocbq: Pointer to iocb object. | |
3908 | * | |
3909 | * This function is called by the slow ring event handler | |
3910 | * function when there is an ASYNC event iocb in the ring. | |
3911 | * This function is called with no lock held. | |
3912 | * Currently this function handles only temperature related | |
3913 | * ASYNC events. The function decodes the temperature sensor | |
3914 | * event message and posts events for the management applications. | |
3915 | **/ | |
98c9ea5c | 3916 | static void |
57127f15 JS |
3917 | lpfc_sli_async_event_handler(struct lpfc_hba * phba, |
3918 | struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq) | |
3919 | { | |
3920 | IOCB_t *icmd; | |
3921 | uint16_t evt_code; | |
3922 | uint16_t temp; | |
3923 | struct temp_event temp_event_data; | |
3924 | struct Scsi_Host *shost; | |
3925 | ||
3926 | icmd = &iocbq->iocb; | |
3927 | evt_code = icmd->un.asyncstat.evt_code; | |
3928 | temp = icmd->ulpContext; | |
3929 | ||
3930 | if ((evt_code != ASYNC_TEMP_WARN) && | |
3931 | (evt_code != ASYNC_TEMP_SAFE)) { | |
3932 | lpfc_printf_log(phba, | |
3933 | KERN_ERR, | |
3934 | LOG_SLI, | |
76bb24ef | 3935 | "0346 Ring %d handler: unexpected ASYNC_STATUS" |
57127f15 JS |
3936 | " evt_code 0x%x\n", |
3937 | pring->ringno, | |
3938 | icmd->un.asyncstat.evt_code); | |
3939 | return; | |
3940 | } | |
3941 | temp_event_data.data = (uint32_t)temp; | |
3942 | temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; | |
3943 | if (evt_code == ASYNC_TEMP_WARN) { | |
3944 | temp_event_data.event_code = LPFC_THRESHOLD_TEMP; | |
3945 | lpfc_printf_log(phba, | |
09372820 | 3946 | KERN_ERR, |
57127f15 | 3947 | LOG_TEMP, |
76bb24ef | 3948 | "0347 Adapter is very hot, please take " |
57127f15 JS |
3949 | "corrective action. temperature : %d Celsius\n", |
3950 | temp); | |
3951 | } | |
3952 | if (evt_code == ASYNC_TEMP_SAFE) { | |
3953 | temp_event_data.event_code = LPFC_NORMAL_TEMP; | |
3954 | lpfc_printf_log(phba, | |
09372820 | 3955 | KERN_ERR, |
57127f15 JS |
3956 | LOG_TEMP, |
3957 | "0340 Adapter temperature is OK now. " | |
3958 | "temperature : %d Celsius\n", | |
3959 | temp); | |
3960 | } | |
3961 | ||
3962 | /* Send temperature change event to applications */ | |
3963 | shost = lpfc_shost_from_vport(phba->pport); | |
3964 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
3965 | sizeof(temp_event_data), (char *) &temp_event_data, | |
3966 | SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); | |
3967 | ||
3968 | } | |
3969 | ||
3970 | ||
e59058c4 JS |
3971 | /** |
3972 | * lpfc_sli_setup: SLI ring setup function. | |
3973 | * @phba: Pointer to HBA context object. | |
3974 | * | |
3975 | * lpfc_sli_setup sets up rings of the SLI interface with | |
3976 | * number of iocbs per ring and iotags. This function is | |
3977 | * called while driver attach to the HBA and before the | |
3978 | * interrupts are enabled. So there is no need for locking. | |
3979 | * | |
3980 | * This function always returns 0. | |
3981 | **/ | |
dea3101e JB |
3982 | int |
3983 | lpfc_sli_setup(struct lpfc_hba *phba) | |
3984 | { | |
ed957684 | 3985 | int i, totiocbsize = 0; |
dea3101e JB |
3986 | struct lpfc_sli *psli = &phba->sli; |
3987 | struct lpfc_sli_ring *pring; | |
3988 | ||
3989 | psli->num_rings = MAX_CONFIGURED_RINGS; | |
3990 | psli->sli_flag = 0; | |
3991 | psli->fcp_ring = LPFC_FCP_RING; | |
3992 | psli->next_ring = LPFC_FCP_NEXT_RING; | |
a4bc3379 | 3993 | psli->extra_ring = LPFC_EXTRA_RING; |
dea3101e | 3994 | |
604a3e30 JB |
3995 | psli->iocbq_lookup = NULL; |
3996 | psli->iocbq_lookup_len = 0; | |
3997 | psli->last_iotag = 0; | |
3998 | ||
dea3101e JB |
3999 | for (i = 0; i < psli->num_rings; i++) { |
4000 | pring = &psli->ring[i]; | |
4001 | switch (i) { | |
4002 | case LPFC_FCP_RING: /* ring 0 - FCP */ | |
4003 | /* numCiocb and numRiocb are used in config_port */ | |
4004 | pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES; | |
4005 | pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES; | |
4006 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
4007 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
4008 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
4009 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
ed957684 | 4010 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
4011 | SLI3_IOCB_CMD_SIZE : |
4012 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 4013 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
4014 | SLI3_IOCB_RSP_SIZE : |
4015 | SLI2_IOCB_RSP_SIZE; | |
dea3101e JB |
4016 | pring->iotag_ctr = 0; |
4017 | pring->iotag_max = | |
92d7f7b0 | 4018 | (phba->cfg_hba_queue_depth * 2); |
dea3101e JB |
4019 | pring->fast_iotag = pring->iotag_max; |
4020 | pring->num_mask = 0; | |
4021 | break; | |
a4bc3379 | 4022 | case LPFC_EXTRA_RING: /* ring 1 - EXTRA */ |
dea3101e JB |
4023 | /* numCiocb and numRiocb are used in config_port */ |
4024 | pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES; | |
4025 | pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES; | |
ed957684 | 4026 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
4027 | SLI3_IOCB_CMD_SIZE : |
4028 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 4029 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
4030 | SLI3_IOCB_RSP_SIZE : |
4031 | SLI2_IOCB_RSP_SIZE; | |
2e0fef85 | 4032 | pring->iotag_max = phba->cfg_hba_queue_depth; |
dea3101e JB |
4033 | pring->num_mask = 0; |
4034 | break; | |
4035 | case LPFC_ELS_RING: /* ring 2 - ELS / CT */ | |
4036 | /* numCiocb and numRiocb are used in config_port */ | |
4037 | pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES; | |
4038 | pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES; | |
ed957684 | 4039 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
4040 | SLI3_IOCB_CMD_SIZE : |
4041 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 4042 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
4043 | SLI3_IOCB_RSP_SIZE : |
4044 | SLI2_IOCB_RSP_SIZE; | |
dea3101e JB |
4045 | pring->fast_iotag = 0; |
4046 | pring->iotag_ctr = 0; | |
4047 | pring->iotag_max = 4096; | |
57127f15 JS |
4048 | pring->lpfc_sli_rcv_async_status = |
4049 | lpfc_sli_async_event_handler; | |
dea3101e JB |
4050 | pring->num_mask = 4; |
4051 | pring->prt[0].profile = 0; /* Mask 0 */ | |
4052 | pring->prt[0].rctl = FC_ELS_REQ; | |
4053 | pring->prt[0].type = FC_ELS_DATA; | |
4054 | pring->prt[0].lpfc_sli_rcv_unsol_event = | |
92d7f7b0 | 4055 | lpfc_els_unsol_event; |
dea3101e JB |
4056 | pring->prt[1].profile = 0; /* Mask 1 */ |
4057 | pring->prt[1].rctl = FC_ELS_RSP; | |
4058 | pring->prt[1].type = FC_ELS_DATA; | |
4059 | pring->prt[1].lpfc_sli_rcv_unsol_event = | |
92d7f7b0 | 4060 | lpfc_els_unsol_event; |
dea3101e JB |
4061 | pring->prt[2].profile = 0; /* Mask 2 */ |
4062 | /* NameServer Inquiry */ | |
4063 | pring->prt[2].rctl = FC_UNSOL_CTL; | |
4064 | /* NameServer */ | |
4065 | pring->prt[2].type = FC_COMMON_TRANSPORT_ULP; | |
4066 | pring->prt[2].lpfc_sli_rcv_unsol_event = | |
92d7f7b0 | 4067 | lpfc_ct_unsol_event; |
dea3101e JB |
4068 | pring->prt[3].profile = 0; /* Mask 3 */ |
4069 | /* NameServer response */ | |
4070 | pring->prt[3].rctl = FC_SOL_CTL; | |
4071 | /* NameServer */ | |
4072 | pring->prt[3].type = FC_COMMON_TRANSPORT_ULP; | |
4073 | pring->prt[3].lpfc_sli_rcv_unsol_event = | |
92d7f7b0 | 4074 | lpfc_ct_unsol_event; |
dea3101e JB |
4075 | break; |
4076 | } | |
ed957684 | 4077 | totiocbsize += (pring->numCiocb * pring->sizeCiocb) + |
92d7f7b0 | 4078 | (pring->numRiocb * pring->sizeRiocb); |
dea3101e | 4079 | } |
ed957684 | 4080 | if (totiocbsize > MAX_SLIM_IOCB_SIZE) { |
dea3101e | 4081 | /* Too many cmd / rsp ring entries in SLI2 SLIM */ |
e8b62011 JS |
4082 | printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in " |
4083 | "SLI2 SLIM Data: x%x x%lx\n", | |
4084 | phba->brd_no, totiocbsize, | |
4085 | (unsigned long) MAX_SLIM_IOCB_SIZE); | |
dea3101e | 4086 | } |
cf5bf97e JW |
4087 | if (phba->cfg_multi_ring_support == 2) |
4088 | lpfc_extra_ring_setup(phba); | |
dea3101e JB |
4089 | |
4090 | return 0; | |
4091 | } | |
4092 | ||
e59058c4 JS |
4093 | /** |
4094 | * lpfc_sli_queue_setup: Queue initialization function. | |
4095 | * @phba: Pointer to HBA context object. | |
4096 | * | |
4097 | * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each | |
4098 | * ring. This function also initializes ring indices of each ring. | |
4099 | * This function is called during the initialization of the SLI | |
4100 | * interface of an HBA. | |
4101 | * This function is called with no lock held and always returns | |
4102 | * 1. | |
4103 | **/ | |
dea3101e | 4104 | int |
2e0fef85 | 4105 | lpfc_sli_queue_setup(struct lpfc_hba *phba) |
dea3101e JB |
4106 | { |
4107 | struct lpfc_sli *psli; | |
4108 | struct lpfc_sli_ring *pring; | |
604a3e30 | 4109 | int i; |
dea3101e JB |
4110 | |
4111 | psli = &phba->sli; | |
2e0fef85 | 4112 | spin_lock_irq(&phba->hbalock); |
dea3101e | 4113 | INIT_LIST_HEAD(&psli->mboxq); |
92d7f7b0 | 4114 | INIT_LIST_HEAD(&psli->mboxq_cmpl); |
dea3101e JB |
4115 | /* Initialize list headers for txq and txcmplq as double linked lists */ |
4116 | for (i = 0; i < psli->num_rings; i++) { | |
4117 | pring = &psli->ring[i]; | |
4118 | pring->ringno = i; | |
4119 | pring->next_cmdidx = 0; | |
4120 | pring->local_getidx = 0; | |
4121 | pring->cmdidx = 0; | |
4122 | INIT_LIST_HEAD(&pring->txq); | |
4123 | INIT_LIST_HEAD(&pring->txcmplq); | |
4124 | INIT_LIST_HEAD(&pring->iocb_continueq); | |
9c2face6 | 4125 | INIT_LIST_HEAD(&pring->iocb_continue_saveq); |
dea3101e | 4126 | INIT_LIST_HEAD(&pring->postbufq); |
dea3101e | 4127 | } |
2e0fef85 JS |
4128 | spin_unlock_irq(&phba->hbalock); |
4129 | return 1; | |
dea3101e JB |
4130 | } |
4131 | ||
e59058c4 JS |
4132 | /** |
4133 | * lpfc_sli_host_down: Vport cleanup function. | |
4134 | * @vport: Pointer to virtual port object. | |
4135 | * | |
4136 | * lpfc_sli_host_down is called to clean up the resources | |
4137 | * associated with a vport before destroying virtual | |
4138 | * port data structures. | |
4139 | * This function does following operations: | |
4140 | * - Free discovery resources associated with this virtual | |
4141 | * port. | |
4142 | * - Free iocbs associated with this virtual port in | |
4143 | * the txq. | |
4144 | * - Send abort for all iocb commands associated with this | |
4145 | * vport in txcmplq. | |
4146 | * | |
4147 | * This function is called with no lock held and always returns 1. | |
4148 | **/ | |
92d7f7b0 JS |
4149 | int |
4150 | lpfc_sli_host_down(struct lpfc_vport *vport) | |
4151 | { | |
858c9f6c | 4152 | LIST_HEAD(completions); |
92d7f7b0 JS |
4153 | struct lpfc_hba *phba = vport->phba; |
4154 | struct lpfc_sli *psli = &phba->sli; | |
4155 | struct lpfc_sli_ring *pring; | |
4156 | struct lpfc_iocbq *iocb, *next_iocb; | |
92d7f7b0 JS |
4157 | int i; |
4158 | unsigned long flags = 0; | |
4159 | uint16_t prev_pring_flag; | |
4160 | ||
4161 | lpfc_cleanup_discovery_resources(vport); | |
4162 | ||
4163 | spin_lock_irqsave(&phba->hbalock, flags); | |
92d7f7b0 JS |
4164 | for (i = 0; i < psli->num_rings; i++) { |
4165 | pring = &psli->ring[i]; | |
4166 | prev_pring_flag = pring->flag; | |
5e9d9b82 JS |
4167 | /* Only slow rings */ |
4168 | if (pring->ringno == LPFC_ELS_RING) { | |
858c9f6c | 4169 | pring->flag |= LPFC_DEFERRED_RING_EVENT; |
5e9d9b82 JS |
4170 | /* Set the lpfc data pending flag */ |
4171 | set_bit(LPFC_DATA_READY, &phba->data_flags); | |
4172 | } | |
92d7f7b0 JS |
4173 | /* |
4174 | * Error everything on the txq since these iocbs have not been | |
4175 | * given to the FW yet. | |
4176 | */ | |
92d7f7b0 JS |
4177 | list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { |
4178 | if (iocb->vport != vport) | |
4179 | continue; | |
858c9f6c | 4180 | list_move_tail(&iocb->list, &completions); |
92d7f7b0 | 4181 | pring->txq_cnt--; |
92d7f7b0 JS |
4182 | } |
4183 | ||
4184 | /* Next issue ABTS for everything on the txcmplq */ | |
4185 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, | |
4186 | list) { | |
4187 | if (iocb->vport != vport) | |
4188 | continue; | |
4189 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); | |
4190 | } | |
4191 | ||
4192 | pring->flag = prev_pring_flag; | |
4193 | } | |
4194 | ||
4195 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
4196 | ||
858c9f6c JS |
4197 | while (!list_empty(&completions)) { |
4198 | list_remove_head(&completions, iocb, struct lpfc_iocbq, list); | |
4199 | ||
4200 | if (!iocb->iocb_cmpl) | |
4201 | lpfc_sli_release_iocbq(phba, iocb); | |
4202 | else { | |
4203 | iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT; | |
4204 | iocb->iocb.un.ulpWord[4] = IOERR_SLI_DOWN; | |
4205 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
4206 | } | |
4207 | } | |
92d7f7b0 JS |
4208 | return 1; |
4209 | } | |
4210 | ||
e59058c4 JS |
4211 | /** |
4212 | * lpfc_sli_hba_down: Resource cleanup function for the HBA. | |
4213 | * @phba: Pointer to HBA context object. | |
4214 | * | |
4215 | * This function cleans up all iocb, buffers, mailbox commands | |
4216 | * while shutting down the HBA. This function is called with no | |
4217 | * lock held and always returns 1. | |
4218 | * This function does the following to cleanup driver resources: | |
4219 | * - Free discovery resources for each virtual port | |
4220 | * - Cleanup any pending fabric iocbs | |
4221 | * - Iterate through the iocb txq and free each entry | |
4222 | * in the list. | |
4223 | * - Free up any buffer posted to the HBA | |
4224 | * - Free mailbox commands in the mailbox queue. | |
4225 | **/ | |
dea3101e | 4226 | int |
2e0fef85 | 4227 | lpfc_sli_hba_down(struct lpfc_hba *phba) |
dea3101e | 4228 | { |
2534ba75 | 4229 | LIST_HEAD(completions); |
2e0fef85 | 4230 | struct lpfc_sli *psli = &phba->sli; |
dea3101e | 4231 | struct lpfc_sli_ring *pring; |
0ff10d46 | 4232 | struct lpfc_dmabuf *buf_ptr; |
dea3101e | 4233 | LPFC_MBOXQ_t *pmb; |
2534ba75 JS |
4234 | struct lpfc_iocbq *iocb; |
4235 | IOCB_t *cmd = NULL; | |
dea3101e JB |
4236 | int i; |
4237 | unsigned long flags = 0; | |
4238 | ||
dea3101e JB |
4239 | lpfc_hba_down_prep(phba); |
4240 | ||
92d7f7b0 JS |
4241 | lpfc_fabric_abort_hba(phba); |
4242 | ||
2e0fef85 | 4243 | spin_lock_irqsave(&phba->hbalock, flags); |
dea3101e JB |
4244 | for (i = 0; i < psli->num_rings; i++) { |
4245 | pring = &psli->ring[i]; | |
5e9d9b82 JS |
4246 | /* Only slow rings */ |
4247 | if (pring->ringno == LPFC_ELS_RING) { | |
858c9f6c | 4248 | pring->flag |= LPFC_DEFERRED_RING_EVENT; |
5e9d9b82 JS |
4249 | /* Set the lpfc data pending flag */ |
4250 | set_bit(LPFC_DATA_READY, &phba->data_flags); | |
4251 | } | |
dea3101e JB |
4252 | |
4253 | /* | |
4254 | * Error everything on the txq since these iocbs have not been | |
4255 | * given to the FW yet. | |
4256 | */ | |
2534ba75 | 4257 | list_splice_init(&pring->txq, &completions); |
dea3101e JB |
4258 | pring->txq_cnt = 0; |
4259 | ||
2534ba75 | 4260 | } |
2e0fef85 | 4261 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e | 4262 | |
2534ba75 | 4263 | while (!list_empty(&completions)) { |
92d7f7b0 | 4264 | list_remove_head(&completions, iocb, struct lpfc_iocbq, list); |
2534ba75 | 4265 | cmd = &iocb->iocb; |
dea3101e | 4266 | |
2e0fef85 JS |
4267 | if (!iocb->iocb_cmpl) |
4268 | lpfc_sli_release_iocbq(phba, iocb); | |
4269 | else { | |
2534ba75 JS |
4270 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; |
4271 | cmd->un.ulpWord[4] = IOERR_SLI_DOWN; | |
4272 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
2e0fef85 | 4273 | } |
dea3101e JB |
4274 | } |
4275 | ||
0ff10d46 JS |
4276 | spin_lock_irqsave(&phba->hbalock, flags); |
4277 | list_splice_init(&phba->elsbuf, &completions); | |
4278 | phba->elsbuf_cnt = 0; | |
4279 | phba->elsbuf_prev_cnt = 0; | |
4280 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
4281 | ||
4282 | while (!list_empty(&completions)) { | |
4283 | list_remove_head(&completions, buf_ptr, | |
4284 | struct lpfc_dmabuf, list); | |
4285 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
4286 | kfree(buf_ptr); | |
4287 | } | |
4288 | ||
dea3101e JB |
4289 | /* Return any active mbox cmds */ |
4290 | del_timer_sync(&psli->mbox_tmo); | |
92d7f7b0 | 4291 | spin_lock_irqsave(&phba->hbalock, flags); |
2e0fef85 | 4292 | |
92d7f7b0 | 4293 | spin_lock(&phba->pport->work_port_lock); |
2e0fef85 | 4294 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; |
92d7f7b0 | 4295 | spin_unlock(&phba->pport->work_port_lock); |
2e0fef85 | 4296 | |
97eab634 JS |
4297 | /* Return any pending or completed mbox cmds */ |
4298 | list_splice_init(&phba->sli.mboxq, &completions); | |
92d7f7b0 JS |
4299 | if (psli->mbox_active) { |
4300 | list_add_tail(&psli->mbox_active->list, &completions); | |
2e0fef85 | 4301 | psli->mbox_active = NULL; |
2e0fef85 | 4302 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
dea3101e | 4303 | } |
92d7f7b0 | 4304 | list_splice_init(&phba->sli.mboxq_cmpl, &completions); |
92d7f7b0 JS |
4305 | spin_unlock_irqrestore(&phba->hbalock, flags); |
4306 | ||
4307 | while (!list_empty(&completions)) { | |
4308 | list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list); | |
dea3101e | 4309 | pmb->mb.mbxStatus = MBX_NOT_FINISHED; |
97eab634 | 4310 | if (pmb->mbox_cmpl) |
dea3101e | 4311 | pmb->mbox_cmpl(phba,pmb); |
dea3101e | 4312 | } |
dea3101e JB |
4313 | return 1; |
4314 | } | |
4315 | ||
e59058c4 JS |
4316 | /** |
4317 | * lpfc_sli_pcimem_bcopy: SLI memory copy function. | |
4318 | * @srcp: Source memory pointer. | |
4319 | * @destp: Destination memory pointer. | |
4320 | * @cnt: Number of words required to be copied. | |
4321 | * | |
4322 | * This function is used for copying data between driver memory | |
4323 | * and the SLI memory. This function also changes the endianness | |
4324 | * of each word if native endianness is different from SLI | |
4325 | * endianness. This function can be called with or without | |
4326 | * lock. | |
4327 | **/ | |
dea3101e JB |
4328 | void |
4329 | lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt) | |
4330 | { | |
4331 | uint32_t *src = srcp; | |
4332 | uint32_t *dest = destp; | |
4333 | uint32_t ldata; | |
4334 | int i; | |
4335 | ||
4336 | for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) { | |
4337 | ldata = *src; | |
4338 | ldata = le32_to_cpu(ldata); | |
4339 | *dest = ldata; | |
4340 | src++; | |
4341 | dest++; | |
4342 | } | |
4343 | } | |
4344 | ||
e59058c4 JS |
4345 | |
4346 | /** | |
4347 | * lpfc_sli_ringpostbuf_put: Function to add a buffer to postbufq. | |
4348 | * @phba: Pointer to HBA context object. | |
4349 | * @pring: Pointer to driver SLI ring object. | |
4350 | * @mp: Pointer to driver buffer object. | |
4351 | * | |
4352 | * This function is called with no lock held. | |
4353 | * It always return zero after adding the buffer to the postbufq | |
4354 | * buffer list. | |
4355 | **/ | |
dea3101e | 4356 | int |
2e0fef85 JS |
4357 | lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
4358 | struct lpfc_dmabuf *mp) | |
dea3101e JB |
4359 | { |
4360 | /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up | |
4361 | later */ | |
2e0fef85 | 4362 | spin_lock_irq(&phba->hbalock); |
dea3101e | 4363 | list_add_tail(&mp->list, &pring->postbufq); |
dea3101e | 4364 | pring->postbufq_cnt++; |
2e0fef85 | 4365 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
4366 | return 0; |
4367 | } | |
4368 | ||
e59058c4 JS |
4369 | /** |
4370 | * lpfc_sli_get_buffer_tag: Tag allocation function for a buffer posted | |
4371 | * using CMD_QUE_XRI64_CX iocb. | |
4372 | * @phba: Pointer to HBA context object. | |
4373 | * | |
4374 | * When HBQ is enabled, buffers are searched based on tags. This function | |
4375 | * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The | |
4376 | * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag | |
4377 | * does not conflict with tags of buffer posted for unsolicited events. | |
4378 | * The function returns the allocated tag. The function is called with | |
4379 | * no locks held. | |
4380 | **/ | |
76bb24ef JS |
4381 | uint32_t |
4382 | lpfc_sli_get_buffer_tag(struct lpfc_hba *phba) | |
4383 | { | |
4384 | spin_lock_irq(&phba->hbalock); | |
4385 | phba->buffer_tag_count++; | |
4386 | /* | |
4387 | * Always set the QUE_BUFTAG_BIT to distiguish between | |
4388 | * a tag assigned by HBQ. | |
4389 | */ | |
4390 | phba->buffer_tag_count |= QUE_BUFTAG_BIT; | |
4391 | spin_unlock_irq(&phba->hbalock); | |
4392 | return phba->buffer_tag_count; | |
4393 | } | |
4394 | ||
e59058c4 JS |
4395 | /** |
4396 | * lpfc_sli_ring_taggedbuf_get: Search HBQ buffer associated with | |
4397 | * posted using CMD_QUE_XRI64_CX iocb. | |
4398 | * @phba: Pointer to HBA context object. | |
4399 | * @pring: Pointer to driver SLI ring object. | |
4400 | * @tag: Buffer tag. | |
4401 | * | |
4402 | * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq | |
4403 | * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX | |
4404 | * iocb is posted to the response ring with the tag of the buffer. | |
4405 | * This function searches the pring->postbufq list using the tag | |
4406 | * to find buffer associated with CMD_IOCB_RET_XRI64_CX | |
4407 | * iocb. If the buffer is found then lpfc_dmabuf object of the | |
4408 | * buffer is returned to the caller else NULL is returned. | |
4409 | * This function is called with no lock held. | |
4410 | **/ | |
76bb24ef JS |
4411 | struct lpfc_dmabuf * |
4412 | lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
4413 | uint32_t tag) | |
4414 | { | |
4415 | struct lpfc_dmabuf *mp, *next_mp; | |
4416 | struct list_head *slp = &pring->postbufq; | |
4417 | ||
4418 | /* Search postbufq, from the begining, looking for a match on tag */ | |
4419 | spin_lock_irq(&phba->hbalock); | |
4420 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { | |
4421 | if (mp->buffer_tag == tag) { | |
4422 | list_del_init(&mp->list); | |
4423 | pring->postbufq_cnt--; | |
4424 | spin_unlock_irq(&phba->hbalock); | |
4425 | return mp; | |
4426 | } | |
4427 | } | |
4428 | ||
4429 | spin_unlock_irq(&phba->hbalock); | |
4430 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
d7c255b2 | 4431 | "0402 Cannot find virtual addr for buffer tag on " |
76bb24ef JS |
4432 | "ring %d Data x%lx x%p x%p x%x\n", |
4433 | pring->ringno, (unsigned long) tag, | |
4434 | slp->next, slp->prev, pring->postbufq_cnt); | |
4435 | ||
4436 | return NULL; | |
4437 | } | |
dea3101e | 4438 | |
e59058c4 JS |
4439 | /** |
4440 | * lpfc_sli_ringpostbuf_get: SLI2 buffer search function for | |
4441 | * unsolicited ct and els events. | |
4442 | * @phba: Pointer to HBA context object. | |
4443 | * @pring: Pointer to driver SLI ring object. | |
4444 | * @phys: DMA address of the buffer. | |
4445 | * | |
4446 | * This function searches the buffer list using the dma_address | |
4447 | * of unsolicited event to find the driver's lpfc_dmabuf object | |
4448 | * corresponding to the dma_address. The function returns the | |
4449 | * lpfc_dmabuf object if a buffer is found else it returns NULL. | |
4450 | * This function is called by the ct and els unsolicited event | |
4451 | * handlers to get the buffer associated with the unsolicited | |
4452 | * event. | |
4453 | * | |
4454 | * This function is called with no lock held. | |
4455 | **/ | |
dea3101e JB |
4456 | struct lpfc_dmabuf * |
4457 | lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
4458 | dma_addr_t phys) | |
4459 | { | |
4460 | struct lpfc_dmabuf *mp, *next_mp; | |
4461 | struct list_head *slp = &pring->postbufq; | |
4462 | ||
4463 | /* Search postbufq, from the begining, looking for a match on phys */ | |
2e0fef85 | 4464 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
4465 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { |
4466 | if (mp->phys == phys) { | |
4467 | list_del_init(&mp->list); | |
4468 | pring->postbufq_cnt--; | |
2e0fef85 | 4469 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
4470 | return mp; |
4471 | } | |
4472 | } | |
4473 | ||
2e0fef85 | 4474 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 4475 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 4476 | "0410 Cannot find virtual addr for mapped buf on " |
dea3101e | 4477 | "ring %d Data x%llx x%p x%p x%x\n", |
e8b62011 | 4478 | pring->ringno, (unsigned long long)phys, |
dea3101e JB |
4479 | slp->next, slp->prev, pring->postbufq_cnt); |
4480 | return NULL; | |
4481 | } | |
4482 | ||
e59058c4 JS |
4483 | /** |
4484 | * lpfc_sli_abort_els_cmpl: Completion handler for the els abort iocbs. | |
4485 | * @phba: Pointer to HBA context object. | |
4486 | * @cmdiocb: Pointer to driver command iocb object. | |
4487 | * @rspiocb: Pointer to driver response iocb object. | |
4488 | * | |
4489 | * This function is the completion handler for the abort iocbs for | |
4490 | * ELS commands. This function is called from the ELS ring event | |
4491 | * handler with no lock held. This function frees memory resources | |
4492 | * associated with the abort iocb. | |
4493 | **/ | |
dea3101e | 4494 | static void |
2e0fef85 JS |
4495 | lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
4496 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 4497 | { |
2e0fef85 | 4498 | IOCB_t *irsp = &rspiocb->iocb; |
2680eeaa | 4499 | uint16_t abort_iotag, abort_context; |
92d7f7b0 | 4500 | struct lpfc_iocbq *abort_iocb; |
2680eeaa JS |
4501 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
4502 | ||
4503 | abort_iocb = NULL; | |
2680eeaa JS |
4504 | |
4505 | if (irsp->ulpStatus) { | |
4506 | abort_context = cmdiocb->iocb.un.acxri.abortContextTag; | |
4507 | abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag; | |
4508 | ||
2e0fef85 | 4509 | spin_lock_irq(&phba->hbalock); |
2680eeaa JS |
4510 | if (abort_iotag != 0 && abort_iotag <= phba->sli.last_iotag) |
4511 | abort_iocb = phba->sli.iocbq_lookup[abort_iotag]; | |
4512 | ||
92d7f7b0 | 4513 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS | LOG_SLI, |
e8b62011 | 4514 | "0327 Cannot abort els iocb %p " |
92d7f7b0 JS |
4515 | "with tag %x context %x, abort status %x, " |
4516 | "abort code %x\n", | |
e8b62011 JS |
4517 | abort_iocb, abort_iotag, abort_context, |
4518 | irsp->ulpStatus, irsp->un.ulpWord[4]); | |
2680eeaa | 4519 | |
58da1ffb JS |
4520 | /* |
4521 | * If the iocb is not found in Firmware queue the iocb | |
4522 | * might have completed already. Do not free it again. | |
4523 | */ | |
9b379605 | 4524 | if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) { |
58da1ffb JS |
4525 | spin_unlock_irq(&phba->hbalock); |
4526 | lpfc_sli_release_iocbq(phba, cmdiocb); | |
4527 | return; | |
4528 | } | |
2680eeaa JS |
4529 | /* |
4530 | * make sure we have the right iocbq before taking it | |
4531 | * off the txcmplq and try to call completion routine. | |
4532 | */ | |
2e0fef85 JS |
4533 | if (!abort_iocb || |
4534 | abort_iocb->iocb.ulpContext != abort_context || | |
4535 | (abort_iocb->iocb_flag & LPFC_DRIVER_ABORTED) == 0) | |
4536 | spin_unlock_irq(&phba->hbalock); | |
4537 | else { | |
92d7f7b0 | 4538 | list_del_init(&abort_iocb->list); |
2680eeaa | 4539 | pring->txcmplq_cnt--; |
2e0fef85 | 4540 | spin_unlock_irq(&phba->hbalock); |
2680eeaa | 4541 | |
0ff10d46 JS |
4542 | /* Firmware could still be in progress of DMAing |
4543 | * payload, so don't free data buffer till after | |
4544 | * a hbeat. | |
4545 | */ | |
4546 | abort_iocb->iocb_flag |= LPFC_DELAY_MEM_FREE; | |
4547 | ||
92d7f7b0 JS |
4548 | abort_iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED; |
4549 | abort_iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT; | |
4550 | abort_iocb->iocb.un.ulpWord[4] = IOERR_SLI_ABORTED; | |
4551 | (abort_iocb->iocb_cmpl)(phba, abort_iocb, abort_iocb); | |
2680eeaa JS |
4552 | } |
4553 | } | |
4554 | ||
604a3e30 | 4555 | lpfc_sli_release_iocbq(phba, cmdiocb); |
dea3101e JB |
4556 | return; |
4557 | } | |
4558 | ||
e59058c4 JS |
4559 | /** |
4560 | * lpfc_ignore_els_cmpl: Completion handler for aborted ELS command. | |
4561 | * @phba: Pointer to HBA context object. | |
4562 | * @cmdiocb: Pointer to driver command iocb object. | |
4563 | * @rspiocb: Pointer to driver response iocb object. | |
4564 | * | |
4565 | * The function is called from SLI ring event handler with no | |
4566 | * lock held. This function is the completion handler for ELS commands | |
4567 | * which are aborted. The function frees memory resources used for | |
4568 | * the aborted ELS commands. | |
4569 | **/ | |
92d7f7b0 JS |
4570 | static void |
4571 | lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
4572 | struct lpfc_iocbq *rspiocb) | |
4573 | { | |
4574 | IOCB_t *irsp = &rspiocb->iocb; | |
4575 | ||
4576 | /* ELS cmd tag <ulpIoTag> completes */ | |
4577 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
d7c255b2 | 4578 | "0139 Ignoring ELS cmd tag x%x completion Data: " |
92d7f7b0 | 4579 | "x%x x%x x%x\n", |
e8b62011 | 4580 | irsp->ulpIoTag, irsp->ulpStatus, |
92d7f7b0 | 4581 | irsp->un.ulpWord[4], irsp->ulpTimeout); |
858c9f6c JS |
4582 | if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) |
4583 | lpfc_ct_free_iocb(phba, cmdiocb); | |
4584 | else | |
4585 | lpfc_els_free_iocb(phba, cmdiocb); | |
92d7f7b0 JS |
4586 | return; |
4587 | } | |
4588 | ||
e59058c4 JS |
4589 | /** |
4590 | * lpfc_sli_issue_abort_iotag: Abort function for a command iocb. | |
4591 | * @phba: Pointer to HBA context object. | |
4592 | * @pring: Pointer to driver SLI ring object. | |
4593 | * @cmdiocb: Pointer to driver command iocb object. | |
4594 | * | |
4595 | * This function issues an abort iocb for the provided command | |
4596 | * iocb. This function is called with hbalock held. | |
4597 | * The function returns 0 when it fails due to memory allocation | |
4598 | * failure or when the command iocb is an abort request. | |
4599 | **/ | |
dea3101e | 4600 | int |
2e0fef85 JS |
4601 | lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
4602 | struct lpfc_iocbq *cmdiocb) | |
dea3101e | 4603 | { |
2e0fef85 | 4604 | struct lpfc_vport *vport = cmdiocb->vport; |
0bd4ca25 | 4605 | struct lpfc_iocbq *abtsiocbp; |
dea3101e JB |
4606 | IOCB_t *icmd = NULL; |
4607 | IOCB_t *iabt = NULL; | |
07951076 JS |
4608 | int retval = IOCB_ERROR; |
4609 | ||
92d7f7b0 JS |
4610 | /* |
4611 | * There are certain command types we don't want to abort. And we | |
4612 | * don't want to abort commands that are already in the process of | |
4613 | * being aborted. | |
07951076 JS |
4614 | */ |
4615 | icmd = &cmdiocb->iocb; | |
2e0fef85 | 4616 | if (icmd->ulpCommand == CMD_ABORT_XRI_CN || |
92d7f7b0 JS |
4617 | icmd->ulpCommand == CMD_CLOSE_XRI_CN || |
4618 | (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0) | |
07951076 JS |
4619 | return 0; |
4620 | ||
858c9f6c JS |
4621 | /* If we're unloading, don't abort iocb on the ELS ring, but change the |
4622 | * callback so that nothing happens when it finishes. | |
07951076 | 4623 | */ |
858c9f6c JS |
4624 | if ((vport->load_flag & FC_UNLOADING) && |
4625 | (pring->ringno == LPFC_ELS_RING)) { | |
92d7f7b0 JS |
4626 | if (cmdiocb->iocb_flag & LPFC_IO_FABRIC) |
4627 | cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl; | |
4628 | else | |
4629 | cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl; | |
07951076 | 4630 | goto abort_iotag_exit; |
92d7f7b0 | 4631 | } |
dea3101e JB |
4632 | |
4633 | /* issue ABTS for this IOCB based on iotag */ | |
92d7f7b0 | 4634 | abtsiocbp = __lpfc_sli_get_iocbq(phba); |
dea3101e JB |
4635 | if (abtsiocbp == NULL) |
4636 | return 0; | |
dea3101e | 4637 | |
07951076 JS |
4638 | /* This signals the response to set the correct status |
4639 | * before calling the completion handler. | |
4640 | */ | |
4641 | cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED; | |
4642 | ||
dea3101e | 4643 | iabt = &abtsiocbp->iocb; |
07951076 JS |
4644 | iabt->un.acxri.abortType = ABORT_TYPE_ABTS; |
4645 | iabt->un.acxri.abortContextTag = icmd->ulpContext; | |
4646 | iabt->un.acxri.abortIoTag = icmd->ulpIoTag; | |
4647 | iabt->ulpLe = 1; | |
4648 | iabt->ulpClass = icmd->ulpClass; | |
dea3101e | 4649 | |
2e0fef85 | 4650 | if (phba->link_state >= LPFC_LINK_UP) |
07951076 JS |
4651 | iabt->ulpCommand = CMD_ABORT_XRI_CN; |
4652 | else | |
4653 | iabt->ulpCommand = CMD_CLOSE_XRI_CN; | |
dea3101e | 4654 | |
07951076 | 4655 | abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl; |
5b8bd0c9 | 4656 | |
e8b62011 JS |
4657 | lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, |
4658 | "0339 Abort xri x%x, original iotag x%x, " | |
4659 | "abort cmd iotag x%x\n", | |
4660 | iabt->un.acxri.abortContextTag, | |
4661 | iabt->un.acxri.abortIoTag, abtsiocbp->iotag); | |
92d7f7b0 | 4662 | retval = __lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0); |
dea3101e | 4663 | |
d7c255b2 JS |
4664 | if (retval) |
4665 | __lpfc_sli_release_iocbq(phba, abtsiocbp); | |
07951076 | 4666 | abort_iotag_exit: |
2e0fef85 JS |
4667 | /* |
4668 | * Caller to this routine should check for IOCB_ERROR | |
4669 | * and handle it properly. This routine no longer removes | |
4670 | * iocb off txcmplq and call compl in case of IOCB_ERROR. | |
07951076 | 4671 | */ |
2e0fef85 | 4672 | return retval; |
dea3101e JB |
4673 | } |
4674 | ||
e59058c4 JS |
4675 | /** |
4676 | * lpfc_sli_validate_fcp_iocb: Filtering function, used to find commands | |
4677 | * associated with a vport/SCSI target/lun. | |
4678 | * @iocbq: Pointer to driver iocb object. | |
4679 | * @vport: Pointer to driver virtual port object. | |
4680 | * @tgt_id: SCSI ID of the target. | |
4681 | * @lun_id: LUN ID of the scsi device. | |
4682 | * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST | |
4683 | * | |
4684 | * This function acts as iocb filter for functions which abort or count | |
4685 | * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return | |
4686 | * 0 if the filtering criteria is met for the given iocb and will return | |
4687 | * 1 if the filtering criteria is not met. | |
4688 | * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the | |
4689 | * given iocb is for the SCSI device specified by vport, tgt_id and | |
4690 | * lun_id parameter. | |
4691 | * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the | |
4692 | * given iocb is for the SCSI target specified by vport and tgt_id | |
4693 | * parameters. | |
4694 | * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the | |
4695 | * given iocb is for the SCSI host associated with the given vport. | |
4696 | * This function is called with no locks held. | |
4697 | **/ | |
dea3101e | 4698 | static int |
51ef4c26 JS |
4699 | lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport, |
4700 | uint16_t tgt_id, uint64_t lun_id, | |
0bd4ca25 | 4701 | lpfc_ctx_cmd ctx_cmd) |
dea3101e | 4702 | { |
0bd4ca25 | 4703 | struct lpfc_scsi_buf *lpfc_cmd; |
dea3101e JB |
4704 | int rc = 1; |
4705 | ||
0bd4ca25 JSEC |
4706 | if (!(iocbq->iocb_flag & LPFC_IO_FCP)) |
4707 | return rc; | |
4708 | ||
51ef4c26 JS |
4709 | if (iocbq->vport != vport) |
4710 | return rc; | |
4711 | ||
0bd4ca25 | 4712 | lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq); |
0bd4ca25 | 4713 | |
495a714c | 4714 | if (lpfc_cmd->pCmd == NULL) |
dea3101e JB |
4715 | return rc; |
4716 | ||
4717 | switch (ctx_cmd) { | |
4718 | case LPFC_CTX_LUN: | |
495a714c JS |
4719 | if ((lpfc_cmd->rdata->pnode) && |
4720 | (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) && | |
4721 | (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id)) | |
dea3101e JB |
4722 | rc = 0; |
4723 | break; | |
4724 | case LPFC_CTX_TGT: | |
495a714c JS |
4725 | if ((lpfc_cmd->rdata->pnode) && |
4726 | (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id)) | |
dea3101e JB |
4727 | rc = 0; |
4728 | break; | |
dea3101e JB |
4729 | case LPFC_CTX_HOST: |
4730 | rc = 0; | |
4731 | break; | |
4732 | default: | |
4733 | printk(KERN_ERR "%s: Unknown context cmd type, value %d\n", | |
cadbd4a5 | 4734 | __func__, ctx_cmd); |
dea3101e JB |
4735 | break; |
4736 | } | |
4737 | ||
4738 | return rc; | |
4739 | } | |
4740 | ||
e59058c4 JS |
4741 | /** |
4742 | * lpfc_sli_sum_iocb: Function to count the number of FCP iocbs pending. | |
4743 | * @vport: Pointer to virtual port. | |
4744 | * @tgt_id: SCSI ID of the target. | |
4745 | * @lun_id: LUN ID of the scsi device. | |
4746 | * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST. | |
4747 | * | |
4748 | * This function returns number of FCP commands pending for the vport. | |
4749 | * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP | |
4750 | * commands pending on the vport associated with SCSI device specified | |
4751 | * by tgt_id and lun_id parameters. | |
4752 | * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP | |
4753 | * commands pending on the vport associated with SCSI target specified | |
4754 | * by tgt_id parameter. | |
4755 | * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP | |
4756 | * commands pending on the vport. | |
4757 | * This function returns the number of iocbs which satisfy the filter. | |
4758 | * This function is called without any lock held. | |
4759 | **/ | |
dea3101e | 4760 | int |
51ef4c26 JS |
4761 | lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id, |
4762 | lpfc_ctx_cmd ctx_cmd) | |
dea3101e | 4763 | { |
51ef4c26 | 4764 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 JSEC |
4765 | struct lpfc_iocbq *iocbq; |
4766 | int sum, i; | |
dea3101e | 4767 | |
0bd4ca25 JSEC |
4768 | for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) { |
4769 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 4770 | |
51ef4c26 JS |
4771 | if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id, |
4772 | ctx_cmd) == 0) | |
0bd4ca25 | 4773 | sum++; |
dea3101e | 4774 | } |
0bd4ca25 | 4775 | |
dea3101e JB |
4776 | return sum; |
4777 | } | |
4778 | ||
e59058c4 JS |
4779 | /** |
4780 | * lpfc_sli_abort_fcp_cmpl: Completion handler function for an aborted | |
4781 | * FCP iocb. | |
4782 | * @phba: Pointer to HBA context object | |
4783 | * @cmdiocb: Pointer to command iocb object. | |
4784 | * @rspiocb: Pointer to response iocb object. | |
4785 | * | |
4786 | * This function is called when an aborted FCP iocb completes. This | |
4787 | * function is called by the ring event handler with no lock held. | |
4788 | * This function frees the iocb. | |
4789 | **/ | |
5eb95af0 | 4790 | void |
2e0fef85 JS |
4791 | lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
4792 | struct lpfc_iocbq *rspiocb) | |
5eb95af0 | 4793 | { |
604a3e30 | 4794 | lpfc_sli_release_iocbq(phba, cmdiocb); |
5eb95af0 JSEC |
4795 | return; |
4796 | } | |
4797 | ||
e59058c4 JS |
4798 | /** |
4799 | * lpfc_sli_abort_iocb: This function issue abort for all SCSI commands | |
4800 | * pending on a SCSI host(vport)/target/lun. | |
4801 | * @vport: Pointer to virtual port. | |
4802 | * @pring: Pointer to driver SLI ring object. | |
4803 | * @tgt_id: SCSI ID of the target. | |
4804 | * @lun_id: LUN ID of the scsi device. | |
4805 | * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST. | |
4806 | * | |
4807 | * This function sends an abort command for every SCSI command | |
4808 | * associated with the given virtual port pending on the ring | |
4809 | * filtered by lpfc_sli_validate_fcp_iocb function. | |
4810 | * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the | |
4811 | * FCP iocbs associated with lun specified by tgt_id and lun_id | |
4812 | * parameters | |
4813 | * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the | |
4814 | * FCP iocbs associated with SCSI target specified by tgt_id parameter. | |
4815 | * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all | |
4816 | * FCP iocbs associated with virtual port. | |
4817 | * This function returns number of iocbs it failed to abort. | |
4818 | * This function is called with no locks held. | |
4819 | **/ | |
dea3101e | 4820 | int |
51ef4c26 JS |
4821 | lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring, |
4822 | uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd) | |
dea3101e | 4823 | { |
51ef4c26 | 4824 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 JSEC |
4825 | struct lpfc_iocbq *iocbq; |
4826 | struct lpfc_iocbq *abtsiocb; | |
dea3101e | 4827 | IOCB_t *cmd = NULL; |
dea3101e | 4828 | int errcnt = 0, ret_val = 0; |
0bd4ca25 | 4829 | int i; |
dea3101e | 4830 | |
0bd4ca25 JSEC |
4831 | for (i = 1; i <= phba->sli.last_iotag; i++) { |
4832 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 4833 | |
51ef4c26 | 4834 | if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id, |
2e0fef85 | 4835 | abort_cmd) != 0) |
dea3101e JB |
4836 | continue; |
4837 | ||
4838 | /* issue ABTS for this IOCB based on iotag */ | |
0bd4ca25 | 4839 | abtsiocb = lpfc_sli_get_iocbq(phba); |
dea3101e JB |
4840 | if (abtsiocb == NULL) { |
4841 | errcnt++; | |
4842 | continue; | |
4843 | } | |
dea3101e | 4844 | |
0bd4ca25 | 4845 | cmd = &iocbq->iocb; |
dea3101e JB |
4846 | abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS; |
4847 | abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext; | |
4848 | abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag; | |
4849 | abtsiocb->iocb.ulpLe = 1; | |
4850 | abtsiocb->iocb.ulpClass = cmd->ulpClass; | |
2e0fef85 | 4851 | abtsiocb->vport = phba->pport; |
dea3101e | 4852 | |
2e0fef85 | 4853 | if (lpfc_is_link_up(phba)) |
dea3101e JB |
4854 | abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN; |
4855 | else | |
4856 | abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN; | |
4857 | ||
5eb95af0 JSEC |
4858 | /* Setup callback routine and issue the command. */ |
4859 | abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl; | |
dea3101e JB |
4860 | ret_val = lpfc_sli_issue_iocb(phba, pring, abtsiocb, 0); |
4861 | if (ret_val == IOCB_ERROR) { | |
604a3e30 | 4862 | lpfc_sli_release_iocbq(phba, abtsiocb); |
dea3101e JB |
4863 | errcnt++; |
4864 | continue; | |
4865 | } | |
4866 | } | |
4867 | ||
4868 | return errcnt; | |
4869 | } | |
4870 | ||
e59058c4 JS |
4871 | /** |
4872 | * lpfc_sli_wake_iocb_wait: iocb completion handler for iocb issued using | |
4873 | * lpfc_sli_issue_iocb_wait. | |
4874 | * @phba: Pointer to HBA context object. | |
4875 | * @cmdiocbq: Pointer to command iocb. | |
4876 | * @rspiocbq: Pointer to response iocb. | |
4877 | * | |
4878 | * This function is the completion handler for iocbs issued using | |
4879 | * lpfc_sli_issue_iocb_wait function. This function is called by the | |
4880 | * ring event handler function without any lock held. This function | |
4881 | * can be called from both worker thread context and interrupt | |
4882 | * context. This function also can be called from other thread which | |
4883 | * cleans up the SLI layer objects. | |
4884 | * This function copy the contents of the response iocb to the | |
4885 | * response iocb memory object provided by the caller of | |
4886 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
4887 | * sleeps for the iocb completion. | |
4888 | **/ | |
68876920 JSEC |
4889 | static void |
4890 | lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba, | |
4891 | struct lpfc_iocbq *cmdiocbq, | |
4892 | struct lpfc_iocbq *rspiocbq) | |
dea3101e | 4893 | { |
68876920 JSEC |
4894 | wait_queue_head_t *pdone_q; |
4895 | unsigned long iflags; | |
dea3101e | 4896 | |
2e0fef85 | 4897 | spin_lock_irqsave(&phba->hbalock, iflags); |
68876920 JSEC |
4898 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; |
4899 | if (cmdiocbq->context2 && rspiocbq) | |
4900 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, | |
4901 | &rspiocbq->iocb, sizeof(IOCB_t)); | |
4902 | ||
4903 | pdone_q = cmdiocbq->context_un.wait_queue; | |
68876920 JSEC |
4904 | if (pdone_q) |
4905 | wake_up(pdone_q); | |
858c9f6c | 4906 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
dea3101e JB |
4907 | return; |
4908 | } | |
4909 | ||
e59058c4 JS |
4910 | /** |
4911 | * lpfc_sli_issue_iocb_wait: Synchronous function to issue iocb commands. | |
4912 | * @phba: Pointer to HBA context object.. | |
4913 | * @pring: Pointer to sli ring. | |
4914 | * @piocb: Pointer to command iocb. | |
4915 | * @prspiocbq: Pointer to response iocb. | |
4916 | * @timeout: Timeout in number of seconds. | |
4917 | * | |
4918 | * This function issues the iocb to firmware and waits for the | |
4919 | * iocb to complete. If the iocb command is not | |
4920 | * completed within timeout seconds, it returns IOCB_TIMEDOUT. | |
4921 | * Caller should not free the iocb resources if this function | |
4922 | * returns IOCB_TIMEDOUT. | |
4923 | * The function waits for the iocb completion using an | |
4924 | * non-interruptible wait. | |
4925 | * This function will sleep while waiting for iocb completion. | |
4926 | * So, this function should not be called from any context which | |
4927 | * does not allow sleeping. Due to the same reason, this function | |
4928 | * cannot be called with interrupt disabled. | |
4929 | * This function assumes that the iocb completions occur while | |
4930 | * this function sleep. So, this function cannot be called from | |
4931 | * the thread which process iocb completion for this ring. | |
4932 | * This function clears the iocb_flag of the iocb object before | |
4933 | * issuing the iocb and the iocb completion handler sets this | |
4934 | * flag and wakes this thread when the iocb completes. | |
4935 | * The contents of the response iocb will be copied to prspiocbq | |
4936 | * by the completion handler when the command completes. | |
4937 | * This function returns IOCB_SUCCESS when success. | |
4938 | * This function is called with no lock held. | |
4939 | **/ | |
dea3101e | 4940 | int |
2e0fef85 JS |
4941 | lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba, |
4942 | struct lpfc_sli_ring *pring, | |
4943 | struct lpfc_iocbq *piocb, | |
4944 | struct lpfc_iocbq *prspiocbq, | |
68876920 | 4945 | uint32_t timeout) |
dea3101e | 4946 | { |
7259f0d0 | 4947 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q); |
68876920 JSEC |
4948 | long timeleft, timeout_req = 0; |
4949 | int retval = IOCB_SUCCESS; | |
875fbdfe | 4950 | uint32_t creg_val; |
dea3101e JB |
4951 | |
4952 | /* | |
68876920 JSEC |
4953 | * If the caller has provided a response iocbq buffer, then context2 |
4954 | * is NULL or its an error. | |
dea3101e | 4955 | */ |
68876920 JSEC |
4956 | if (prspiocbq) { |
4957 | if (piocb->context2) | |
4958 | return IOCB_ERROR; | |
4959 | piocb->context2 = prspiocbq; | |
dea3101e JB |
4960 | } |
4961 | ||
68876920 JSEC |
4962 | piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait; |
4963 | piocb->context_un.wait_queue = &done_q; | |
4964 | piocb->iocb_flag &= ~LPFC_IO_WAKE; | |
dea3101e | 4965 | |
875fbdfe JSEC |
4966 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
4967 | creg_val = readl(phba->HCregaddr); | |
4968 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); | |
4969 | writel(creg_val, phba->HCregaddr); | |
4970 | readl(phba->HCregaddr); /* flush */ | |
4971 | } | |
4972 | ||
68876920 JSEC |
4973 | retval = lpfc_sli_issue_iocb(phba, pring, piocb, 0); |
4974 | if (retval == IOCB_SUCCESS) { | |
4975 | timeout_req = timeout * HZ; | |
68876920 JSEC |
4976 | timeleft = wait_event_timeout(done_q, |
4977 | piocb->iocb_flag & LPFC_IO_WAKE, | |
4978 | timeout_req); | |
dea3101e | 4979 | |
7054a606 JS |
4980 | if (piocb->iocb_flag & LPFC_IO_WAKE) { |
4981 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 4982 | "0331 IOCB wake signaled\n"); |
7054a606 | 4983 | } else if (timeleft == 0) { |
68876920 | 4984 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 JS |
4985 | "0338 IOCB wait timeout error - no " |
4986 | "wake response Data x%x\n", timeout); | |
68876920 | 4987 | retval = IOCB_TIMEDOUT; |
7054a606 | 4988 | } else { |
68876920 | 4989 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 JS |
4990 | "0330 IOCB wake NOT set, " |
4991 | "Data x%x x%lx\n", | |
68876920 JSEC |
4992 | timeout, (timeleft / jiffies)); |
4993 | retval = IOCB_TIMEDOUT; | |
dea3101e | 4994 | } |
68876920 JSEC |
4995 | } else { |
4996 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
d7c255b2 | 4997 | "0332 IOCB wait issue failed, Data x%x\n", |
e8b62011 | 4998 | retval); |
68876920 | 4999 | retval = IOCB_ERROR; |
dea3101e JB |
5000 | } |
5001 | ||
875fbdfe JSEC |
5002 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
5003 | creg_val = readl(phba->HCregaddr); | |
5004 | creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); | |
5005 | writel(creg_val, phba->HCregaddr); | |
5006 | readl(phba->HCregaddr); /* flush */ | |
5007 | } | |
5008 | ||
68876920 JSEC |
5009 | if (prspiocbq) |
5010 | piocb->context2 = NULL; | |
5011 | ||
5012 | piocb->context_un.wait_queue = NULL; | |
5013 | piocb->iocb_cmpl = NULL; | |
dea3101e JB |
5014 | return retval; |
5015 | } | |
68876920 | 5016 | |
e59058c4 JS |
5017 | /** |
5018 | * lpfc_sli_issue_mbox_wait: Synchronous function to issue mailbox. | |
5019 | * @phba: Pointer to HBA context object. | |
5020 | * @pmboxq: Pointer to driver mailbox object. | |
5021 | * @timeout: Timeout in number of seconds. | |
5022 | * | |
5023 | * This function issues the mailbox to firmware and waits for the | |
5024 | * mailbox command to complete. If the mailbox command is not | |
5025 | * completed within timeout seconds, it returns MBX_TIMEOUT. | |
5026 | * The function waits for the mailbox completion using an | |
5027 | * interruptible wait. If the thread is woken up due to a | |
5028 | * signal, MBX_TIMEOUT error is returned to the caller. Caller | |
5029 | * should not free the mailbox resources, if this function returns | |
5030 | * MBX_TIMEOUT. | |
5031 | * This function will sleep while waiting for mailbox completion. | |
5032 | * So, this function should not be called from any context which | |
5033 | * does not allow sleeping. Due to the same reason, this function | |
5034 | * cannot be called with interrupt disabled. | |
5035 | * This function assumes that the mailbox completion occurs while | |
5036 | * this function sleep. So, this function cannot be called from | |
5037 | * the worker thread which processes mailbox completion. | |
5038 | * This function is called in the context of HBA management | |
5039 | * applications. | |
5040 | * This function returns MBX_SUCCESS when successful. | |
5041 | * This function is called with no lock held. | |
5042 | **/ | |
dea3101e | 5043 | int |
2e0fef85 | 5044 | lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq, |
dea3101e JB |
5045 | uint32_t timeout) |
5046 | { | |
7259f0d0 | 5047 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q); |
dea3101e | 5048 | int retval; |
858c9f6c | 5049 | unsigned long flag; |
dea3101e JB |
5050 | |
5051 | /* The caller must leave context1 empty. */ | |
98c9ea5c | 5052 | if (pmboxq->context1) |
2e0fef85 | 5053 | return MBX_NOT_FINISHED; |
dea3101e | 5054 | |
495a714c | 5055 | pmboxq->mbox_flag &= ~LPFC_MBX_WAKE; |
dea3101e JB |
5056 | /* setup wake call as IOCB callback */ |
5057 | pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait; | |
5058 | /* setup context field to pass wait_queue pointer to wake function */ | |
5059 | pmboxq->context1 = &done_q; | |
5060 | ||
dea3101e JB |
5061 | /* now issue the command */ |
5062 | retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); | |
5063 | ||
5064 | if (retval == MBX_BUSY || retval == MBX_SUCCESS) { | |
7054a606 JS |
5065 | wait_event_interruptible_timeout(done_q, |
5066 | pmboxq->mbox_flag & LPFC_MBX_WAKE, | |
5067 | timeout * HZ); | |
5068 | ||
858c9f6c | 5069 | spin_lock_irqsave(&phba->hbalock, flag); |
dea3101e | 5070 | pmboxq->context1 = NULL; |
7054a606 JS |
5071 | /* |
5072 | * if LPFC_MBX_WAKE flag is set the mailbox is completed | |
5073 | * else do not free the resources. | |
5074 | */ | |
5075 | if (pmboxq->mbox_flag & LPFC_MBX_WAKE) | |
dea3101e | 5076 | retval = MBX_SUCCESS; |
858c9f6c | 5077 | else { |
7054a606 | 5078 | retval = MBX_TIMEOUT; |
858c9f6c JS |
5079 | pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
5080 | } | |
5081 | spin_unlock_irqrestore(&phba->hbalock, flag); | |
dea3101e JB |
5082 | } |
5083 | ||
dea3101e JB |
5084 | return retval; |
5085 | } | |
5086 | ||
e59058c4 JS |
5087 | /** |
5088 | * lpfc_sli_flush_mbox_queue: mailbox queue cleanup function. | |
5089 | * @phba: Pointer to HBA context. | |
5090 | * | |
5091 | * This function is called to cleanup any pending mailbox | |
5092 | * objects in the driver queue before bringing the HBA offline. | |
5093 | * This function is called while resetting the HBA. | |
5094 | * The function is called without any lock held. The function | |
5095 | * takes hbalock to update SLI data structure. | |
5096 | * This function returns 1 when there is an active mailbox | |
5097 | * command pending else returns 0. | |
5098 | **/ | |
b4c02652 JS |
5099 | int |
5100 | lpfc_sli_flush_mbox_queue(struct lpfc_hba * phba) | |
5101 | { | |
2e0fef85 | 5102 | struct lpfc_vport *vport = phba->pport; |
b4c02652 | 5103 | int i = 0; |
ed957684 | 5104 | uint32_t ha_copy; |
b4c02652 | 5105 | |
2e0fef85 | 5106 | while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE && !vport->stopped) { |
b4c02652 JS |
5107 | if (i++ > LPFC_MBOX_TMO * 1000) |
5108 | return 1; | |
5109 | ||
ed957684 JS |
5110 | /* |
5111 | * Call lpfc_sli_handle_mb_event only if a mailbox cmd | |
5112 | * did finish. This way we won't get the misleading | |
5113 | * "Stray Mailbox Interrupt" message. | |
5114 | */ | |
5115 | spin_lock_irq(&phba->hbalock); | |
5116 | ha_copy = phba->work_ha; | |
5117 | phba->work_ha &= ~HA_MBATT; | |
5118 | spin_unlock_irq(&phba->hbalock); | |
5119 | ||
5120 | if (ha_copy & HA_MBATT) | |
5121 | if (lpfc_sli_handle_mb_event(phba) == 0) | |
5122 | i = 0; | |
b4c02652 JS |
5123 | |
5124 | msleep(1); | |
5125 | } | |
5126 | ||
5127 | return (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) ? 1 : 0; | |
5128 | } | |
5129 | ||
e59058c4 JS |
5130 | /** |
5131 | * lpfc_intr_handler: The interrupt handler of lpfc driver. | |
5132 | * @irq: Interrupt number. | |
5133 | * @dev_id: The device context pointer. | |
5134 | * | |
5135 | * This function is called from the PCI layer when there is | |
5136 | * an event in the HBA which requires driver attention. When | |
5137 | * the PCI slot is in error recovery or the HBA is undergoing | |
5138 | * initialization the interrupt handler will not process the | |
5139 | * interrupt. | |
5140 | * The error attention, link attention and els ring attention | |
5141 | * events are handled by the worker thread. The interrupt | |
5142 | * handler signals the worker thread and returns for these | |
5143 | * events. | |
5144 | * The SCSI ring event and mailbox events are handled in the | |
5145 | * interrupt context. | |
5146 | * This function is called without any lock held. It gets the | |
5147 | * hbalock to access and update SLI data structures. | |
5148 | * This function returns IRQ_HANDLED when interrupt is handled | |
5149 | * else it returns IRQ_NONE. | |
5150 | **/ | |
dea3101e | 5151 | irqreturn_t |
7d12e780 | 5152 | lpfc_intr_handler(int irq, void *dev_id) |
dea3101e | 5153 | { |
2e0fef85 | 5154 | struct lpfc_hba *phba; |
dea3101e JB |
5155 | uint32_t ha_copy; |
5156 | uint32_t work_ha_copy; | |
5157 | unsigned long status; | |
dea3101e JB |
5158 | uint32_t control; |
5159 | ||
92d7f7b0 | 5160 | MAILBOX_t *mbox, *pmbox; |
858c9f6c JS |
5161 | struct lpfc_vport *vport; |
5162 | struct lpfc_nodelist *ndlp; | |
5163 | struct lpfc_dmabuf *mp; | |
92d7f7b0 JS |
5164 | LPFC_MBOXQ_t *pmb; |
5165 | int rc; | |
5166 | ||
dea3101e JB |
5167 | /* |
5168 | * Get the driver's phba structure from the dev_id and | |
5169 | * assume the HBA is not interrupting. | |
5170 | */ | |
5171 | phba = (struct lpfc_hba *) dev_id; | |
5172 | ||
5173 | if (unlikely(!phba)) | |
5174 | return IRQ_NONE; | |
5175 | ||
8d63f375 LV |
5176 | /* If the pci channel is offline, ignore all the interrupts. */ |
5177 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
5178 | return IRQ_NONE; | |
5179 | ||
dea3101e JB |
5180 | phba->sli.slistat.sli_intr++; |
5181 | ||
5182 | /* | |
5183 | * Call the HBA to see if it is interrupting. If not, don't claim | |
5184 | * the interrupt | |
5185 | */ | |
5186 | ||
5187 | /* Ignore all interrupts during initialization. */ | |
2e0fef85 | 5188 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) |
dea3101e JB |
5189 | return IRQ_NONE; |
5190 | ||
5191 | /* | |
5192 | * Read host attention register to determine interrupt source | |
5193 | * Clear Attention Sources, except Error Attention (to | |
5194 | * preserve status) and Link Attention | |
5195 | */ | |
2e0fef85 | 5196 | spin_lock(&phba->hbalock); |
34b02dcd JS |
5197 | if (phba->sli3_options & LPFC_SLI3_INB_ENABLED && |
5198 | (phba->inb_last_counter != *phba->inb_counter)) { | |
5199 | phba->inb_last_counter = *phba->inb_counter; | |
5200 | ha_copy = le32_to_cpu(*phba->inb_ha_copy); | |
5201 | } else | |
5202 | ha_copy = readl(phba->HAregaddr); | |
5203 | if (unlikely(!ha_copy)) { | |
5204 | spin_unlock(&phba->hbalock); | |
5205 | return IRQ_NONE; | |
5206 | } | |
ebdbe65f JS |
5207 | /* If somebody is waiting to handle an eratt don't process it |
5208 | * here. The brdkill function will do this. | |
5209 | */ | |
2e0fef85 | 5210 | if (phba->link_flag & LS_IGNORE_ERATT) |
ebdbe65f | 5211 | ha_copy &= ~HA_ERATT; |
dea3101e JB |
5212 | writel((ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr); |
5213 | readl(phba->HAregaddr); /* flush */ | |
2e0fef85 | 5214 | spin_unlock(&phba->hbalock); |
dea3101e | 5215 | |
dea3101e JB |
5216 | work_ha_copy = ha_copy & phba->work_ha_mask; |
5217 | ||
5218 | if (unlikely(work_ha_copy)) { | |
5219 | if (work_ha_copy & HA_LATT) { | |
5220 | if (phba->sli.sli_flag & LPFC_PROCESS_LA) { | |
5221 | /* | |
5222 | * Turn off Link Attention interrupts | |
5223 | * until CLEAR_LA done | |
5224 | */ | |
2e0fef85 | 5225 | spin_lock(&phba->hbalock); |
dea3101e JB |
5226 | phba->sli.sli_flag &= ~LPFC_PROCESS_LA; |
5227 | control = readl(phba->HCregaddr); | |
5228 | control &= ~HC_LAINT_ENA; | |
5229 | writel(control, phba->HCregaddr); | |
5230 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 | 5231 | spin_unlock(&phba->hbalock); |
dea3101e JB |
5232 | } |
5233 | else | |
5234 | work_ha_copy &= ~HA_LATT; | |
5235 | } | |
5236 | ||
5237 | if (work_ha_copy & ~(HA_ERATT|HA_MBATT|HA_LATT)) { | |
858c9f6c JS |
5238 | /* |
5239 | * Turn off Slow Rings interrupts, LPFC_ELS_RING is | |
5240 | * the only slow ring. | |
5241 | */ | |
5242 | status = (work_ha_copy & | |
5243 | (HA_RXMASK << (4*LPFC_ELS_RING))); | |
5244 | status >>= (4*LPFC_ELS_RING); | |
5245 | if (status & HA_RXMASK) { | |
5246 | spin_lock(&phba->hbalock); | |
5247 | control = readl(phba->HCregaddr); | |
a58cbd52 JS |
5248 | |
5249 | lpfc_debugfs_slow_ring_trc(phba, | |
5250 | "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x", | |
5251 | control, status, | |
5252 | (uint32_t)phba->sli.slistat.sli_intr); | |
5253 | ||
858c9f6c | 5254 | if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) { |
a58cbd52 JS |
5255 | lpfc_debugfs_slow_ring_trc(phba, |
5256 | "ISR Disable ring:" | |
5257 | "pwork:x%x hawork:x%x wait:x%x", | |
5258 | phba->work_ha, work_ha_copy, | |
5259 | (uint32_t)((unsigned long) | |
5e9d9b82 | 5260 | &phba->work_waitq)); |
a58cbd52 | 5261 | |
858c9f6c JS |
5262 | control &= |
5263 | ~(HC_R0INT_ENA << LPFC_ELS_RING); | |
dea3101e JB |
5264 | writel(control, phba->HCregaddr); |
5265 | readl(phba->HCregaddr); /* flush */ | |
dea3101e | 5266 | } |
a58cbd52 JS |
5267 | else { |
5268 | lpfc_debugfs_slow_ring_trc(phba, | |
5269 | "ISR slow ring: pwork:" | |
5270 | "x%x hawork:x%x wait:x%x", | |
5271 | phba->work_ha, work_ha_copy, | |
5272 | (uint32_t)((unsigned long) | |
5e9d9b82 | 5273 | &phba->work_waitq)); |
a58cbd52 | 5274 | } |
858c9f6c | 5275 | spin_unlock(&phba->hbalock); |
dea3101e JB |
5276 | } |
5277 | } | |
5278 | ||
5279 | if (work_ha_copy & HA_ERATT) { | |
dea3101e JB |
5280 | /* |
5281 | * There was a link/board error. Read the | |
5282 | * status register to retrieve the error event | |
5283 | * and process it. | |
5284 | */ | |
5285 | phba->sli.slistat.err_attn_event++; | |
5286 | /* Save status info */ | |
5287 | phba->work_hs = readl(phba->HSregaddr); | |
5288 | phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); | |
5289 | phba->work_status[1] = readl(phba->MBslimaddr + 0xac); | |
5290 | ||
5291 | /* Clear Chip error bit */ | |
5292 | writel(HA_ERATT, phba->HAregaddr); | |
5293 | readl(phba->HAregaddr); /* flush */ | |
2e0fef85 | 5294 | phba->pport->stopped = 1; |
dea3101e JB |
5295 | } |
5296 | ||
97eab634 | 5297 | spin_lock(&phba->hbalock); |
92d7f7b0 JS |
5298 | if ((work_ha_copy & HA_MBATT) && |
5299 | (phba->sli.mbox_active)) { | |
5300 | pmb = phba->sli.mbox_active; | |
5301 | pmbox = &pmb->mb; | |
34b02dcd | 5302 | mbox = phba->mbox; |
858c9f6c | 5303 | vport = pmb->vport; |
92d7f7b0 JS |
5304 | |
5305 | /* First check out the status word */ | |
5306 | lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t)); | |
5307 | if (pmbox->mbxOwner != OWN_HOST) { | |
97eab634 | 5308 | spin_unlock(&phba->hbalock); |
92d7f7b0 JS |
5309 | /* |
5310 | * Stray Mailbox Interrupt, mbxCommand <cmd> | |
5311 | * mbxStatus <status> | |
5312 | */ | |
09372820 | 5313 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | |
92d7f7b0 | 5314 | LOG_SLI, |
e8b62011 | 5315 | "(%d):0304 Stray Mailbox " |
92d7f7b0 JS |
5316 | "Interrupt mbxCommand x%x " |
5317 | "mbxStatus x%x\n", | |
e8b62011 | 5318 | (vport ? vport->vpi : 0), |
92d7f7b0 JS |
5319 | pmbox->mbxCommand, |
5320 | pmbox->mbxStatus); | |
09372820 JS |
5321 | /* clear mailbox attention bit */ |
5322 | work_ha_copy &= ~HA_MBATT; | |
5323 | } else { | |
97eab634 JS |
5324 | phba->sli.mbox_active = NULL; |
5325 | spin_unlock(&phba->hbalock); | |
09372820 JS |
5326 | phba->last_completion_time = jiffies; |
5327 | del_timer(&phba->sli.mbox_tmo); | |
09372820 JS |
5328 | if (pmb->mbox_cmpl) { |
5329 | lpfc_sli_pcimem_bcopy(mbox, pmbox, | |
5330 | MAILBOX_CMD_SIZE); | |
5331 | } | |
5332 | if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) { | |
5333 | pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG; | |
5334 | ||
5335 | lpfc_debugfs_disc_trc(vport, | |
5336 | LPFC_DISC_TRC_MBOX_VPORT, | |
5337 | "MBOX dflt rpi: : " | |
5338 | "status:x%x rpi:x%x", | |
5339 | (uint32_t)pmbox->mbxStatus, | |
5340 | pmbox->un.varWords[0], 0); | |
5341 | ||
5342 | if (!pmbox->mbxStatus) { | |
5343 | mp = (struct lpfc_dmabuf *) | |
5344 | (pmb->context1); | |
5345 | ndlp = (struct lpfc_nodelist *) | |
5346 | pmb->context2; | |
5347 | ||
5348 | /* Reg_LOGIN of dflt RPI was | |
5349 | * successful. new lets get | |
5350 | * rid of the RPI using the | |
5351 | * same mbox buffer. | |
5352 | */ | |
5353 | lpfc_unreg_login(phba, | |
5354 | vport->vpi, | |
5355 | pmbox->un.varWords[0], | |
5356 | pmb); | |
5357 | pmb->mbox_cmpl = | |
5358 | lpfc_mbx_cmpl_dflt_rpi; | |
5359 | pmb->context1 = mp; | |
5360 | pmb->context2 = ndlp; | |
5361 | pmb->vport = vport; | |
58da1ffb JS |
5362 | rc = lpfc_sli_issue_mbox(phba, |
5363 | pmb, | |
5364 | MBX_NOWAIT); | |
5365 | if (rc != MBX_BUSY) | |
5366 | lpfc_printf_log(phba, | |
5367 | KERN_ERR, | |
5368 | LOG_MBOX | LOG_SLI, | |
d7c255b2 | 5369 | "0350 rc should have" |
58da1ffb | 5370 | "been MBX_BUSY"); |
09372820 JS |
5371 | goto send_current_mbox; |
5372 | } | |
858c9f6c | 5373 | } |
09372820 JS |
5374 | spin_lock(&phba->pport->work_port_lock); |
5375 | phba->pport->work_port_events &= | |
5376 | ~WORKER_MBOX_TMO; | |
5377 | spin_unlock(&phba->pport->work_port_lock); | |
5378 | lpfc_mbox_cmpl_put(phba, pmb); | |
858c9f6c | 5379 | } |
97eab634 JS |
5380 | } else |
5381 | spin_unlock(&phba->hbalock); | |
92d7f7b0 JS |
5382 | if ((work_ha_copy & HA_MBATT) && |
5383 | (phba->sli.mbox_active == NULL)) { | |
858c9f6c | 5384 | send_current_mbox: |
92d7f7b0 | 5385 | /* Process next mailbox command if there is one */ |
58da1ffb JS |
5386 | do { |
5387 | rc = lpfc_sli_issue_mbox(phba, NULL, | |
5388 | MBX_NOWAIT); | |
5389 | } while (rc == MBX_NOT_FINISHED); | |
5390 | if (rc != MBX_SUCCESS) | |
5391 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | | |
5392 | LOG_SLI, "0349 rc should be " | |
5393 | "MBX_SUCCESS"); | |
92d7f7b0 JS |
5394 | } |
5395 | ||
2e0fef85 | 5396 | spin_lock(&phba->hbalock); |
dea3101e | 5397 | phba->work_ha |= work_ha_copy; |
2e0fef85 | 5398 | spin_unlock(&phba->hbalock); |
5e9d9b82 | 5399 | lpfc_worker_wake_up(phba); |
dea3101e JB |
5400 | } |
5401 | ||
5402 | ha_copy &= ~(phba->work_ha_mask); | |
5403 | ||
5404 | /* | |
5405 | * Process all events on FCP ring. Take the optimized path for | |
5406 | * FCP IO. Any other IO is slow path and is handled by | |
5407 | * the worker thread. | |
5408 | */ | |
5409 | status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); | |
5410 | status >>= (4*LPFC_FCP_RING); | |
858c9f6c | 5411 | if (status & HA_RXMASK) |
dea3101e JB |
5412 | lpfc_sli_handle_fast_ring_event(phba, |
5413 | &phba->sli.ring[LPFC_FCP_RING], | |
5414 | status); | |
a4bc3379 JS |
5415 | |
5416 | if (phba->cfg_multi_ring_support == 2) { | |
5417 | /* | |
5418 | * Process all events on extra ring. Take the optimized path | |
5419 | * for extra ring IO. Any other IO is slow path and is handled | |
5420 | * by the worker thread. | |
5421 | */ | |
5422 | status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING))); | |
5423 | status >>= (4*LPFC_EXTRA_RING); | |
858c9f6c | 5424 | if (status & HA_RXMASK) { |
a4bc3379 JS |
5425 | lpfc_sli_handle_fast_ring_event(phba, |
5426 | &phba->sli.ring[LPFC_EXTRA_RING], | |
5427 | status); | |
5428 | } | |
5429 | } | |
dea3101e JB |
5430 | return IRQ_HANDLED; |
5431 | ||
5432 | } /* lpfc_intr_handler */ |