Commit | Line | Data |
---|---|---|
dea3101e | 1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
c44ce173 | 3 | * Fibre Channel Host Bus Adapters. * |
1b32f6aa | 4 | * Copyright (C) 2004-2008 Emulex. All rights reserved. * |
c44ce173 | 5 | * EMULEX and SLI are trademarks of Emulex. * |
dea3101e | 6 | * www.emulex.com * |
c44ce173 | 7 | * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
dea3101e | 8 | * * |
9 | * This program is free software; you can redistribute it and/or * | |
c44ce173 JSEC |
10 | * modify it under the terms of version 2 of the GNU General * |
11 | * Public License as published by the Free Software Foundation. * | |
12 | * This program is distributed in the hope that it will be useful. * | |
13 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * | |
14 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * | |
15 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * | |
16 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * | |
17 | * TO BE LEGALLY INVALID. See the GNU General Public License for * | |
18 | * more details, a copy of which can be found in the file COPYING * | |
19 | * included with this package. * | |
dea3101e | 20 | *******************************************************************/ |
21 | ||
dea3101e | 22 | #include <linux/blkdev.h> |
23 | #include <linux/pci.h> | |
24 | #include <linux/interrupt.h> | |
25 | #include <linux/delay.h> | |
26 | ||
91886523 | 27 | #include <scsi/scsi.h> |
dea3101e | 28 | #include <scsi/scsi_cmnd.h> |
29 | #include <scsi/scsi_device.h> | |
30 | #include <scsi/scsi_host.h> | |
f888ba3c | 31 | #include <scsi/scsi_transport_fc.h> |
dea3101e | 32 | |
33 | #include "lpfc_hw.h" | |
34 | #include "lpfc_sli.h" | |
ea2151b4 | 35 | #include "lpfc_nl.h" |
dea3101e | 36 | #include "lpfc_disc.h" |
37 | #include "lpfc_scsi.h" | |
38 | #include "lpfc.h" | |
39 | #include "lpfc_crtn.h" | |
40 | #include "lpfc_logmsg.h" | |
41 | #include "lpfc_compat.h" | |
858c9f6c | 42 | #include "lpfc_debugfs.h" |
dea3101e | 43 | |
44 | /* | |
45 | * Define macro to log: Mailbox command x%x cannot issue Data | |
46 | * This allows multiple uses of lpfc_msgBlk0311 | |
47 | * w/o perturbing log msg utility. | |
48 | */ | |
92d7f7b0 | 49 | #define LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag) \ |
dea3101e | 50 | lpfc_printf_log(phba, \ |
51 | KERN_INFO, \ | |
52 | LOG_MBOX | LOG_SLI, \ | |
e8b62011 | 53 | "(%d):0311 Mailbox command x%x cannot " \ |
92d7f7b0 | 54 | "issue Data: x%x x%x x%x\n", \ |
92d7f7b0 JS |
55 | pmbox->vport ? pmbox->vport->vpi : 0, \ |
56 | pmbox->mb.mbxCommand, \ | |
2e0fef85 | 57 | phba->pport->port_state, \ |
dea3101e | 58 | psli->sli_flag, \ |
2e0fef85 | 59 | flag) |
dea3101e | 60 | |
61 | ||
62 | /* There are only four IOCB completion types. */ | |
63 | typedef enum _lpfc_iocb_type { | |
64 | LPFC_UNKNOWN_IOCB, | |
65 | LPFC_UNSOL_IOCB, | |
66 | LPFC_SOL_IOCB, | |
67 | LPFC_ABORT_IOCB | |
68 | } lpfc_iocb_type; | |
69 | ||
e59058c4 | 70 | /** |
3621a710 | 71 | * lpfc_cmd_iocb - Get next command iocb entry in the ring |
e59058c4 JS |
72 | * @phba: Pointer to HBA context object. |
73 | * @pring: Pointer to driver SLI ring object. | |
74 | * | |
75 | * This function returns pointer to next command iocb entry | |
76 | * in the command ring. The caller must hold hbalock to prevent | |
77 | * other threads consume the next command iocb. | |
78 | * SLI-2/SLI-3 provide different sized iocbs. | |
79 | **/ | |
ed957684 JS |
80 | static inline IOCB_t * |
81 | lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
82 | { | |
83 | return (IOCB_t *) (((char *) pring->cmdringaddr) + | |
84 | pring->cmdidx * phba->iocb_cmd_size); | |
85 | } | |
86 | ||
e59058c4 | 87 | /** |
3621a710 | 88 | * lpfc_resp_iocb - Get next response iocb entry in the ring |
e59058c4 JS |
89 | * @phba: Pointer to HBA context object. |
90 | * @pring: Pointer to driver SLI ring object. | |
91 | * | |
92 | * This function returns pointer to next response iocb entry | |
93 | * in the response ring. The caller must hold hbalock to make sure | |
94 | * that no other thread consume the next response iocb. | |
95 | * SLI-2/SLI-3 provide different sized iocbs. | |
96 | **/ | |
ed957684 JS |
97 | static inline IOCB_t * |
98 | lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
99 | { | |
100 | return (IOCB_t *) (((char *) pring->rspringaddr) + | |
101 | pring->rspidx * phba->iocb_rsp_size); | |
102 | } | |
103 | ||
e59058c4 | 104 | /** |
3621a710 | 105 | * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool |
e59058c4 JS |
106 | * @phba: Pointer to HBA context object. |
107 | * | |
108 | * This function is called with hbalock held. This function | |
109 | * allocates a new driver iocb object from the iocb pool. If the | |
110 | * allocation is successful, it returns pointer to the newly | |
111 | * allocated iocb object else it returns NULL. | |
112 | **/ | |
2e0fef85 JS |
113 | static struct lpfc_iocbq * |
114 | __lpfc_sli_get_iocbq(struct lpfc_hba *phba) | |
0bd4ca25 JSEC |
115 | { |
116 | struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list; | |
117 | struct lpfc_iocbq * iocbq = NULL; | |
118 | ||
119 | list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list); | |
120 | return iocbq; | |
121 | } | |
122 | ||
e59058c4 | 123 | /** |
3621a710 | 124 | * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool |
e59058c4 JS |
125 | * @phba: Pointer to HBA context object. |
126 | * | |
127 | * This function is called with no lock held. This function | |
128 | * allocates a new driver iocb object from the iocb pool. If the | |
129 | * allocation is successful, it returns pointer to the newly | |
130 | * allocated iocb object else it returns NULL. | |
131 | **/ | |
2e0fef85 JS |
132 | struct lpfc_iocbq * |
133 | lpfc_sli_get_iocbq(struct lpfc_hba *phba) | |
134 | { | |
135 | struct lpfc_iocbq * iocbq = NULL; | |
136 | unsigned long iflags; | |
137 | ||
138 | spin_lock_irqsave(&phba->hbalock, iflags); | |
139 | iocbq = __lpfc_sli_get_iocbq(phba); | |
140 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
141 | return iocbq; | |
142 | } | |
143 | ||
e59058c4 | 144 | /** |
3621a710 | 145 | * __lpfc_sli_release_iocbq - Release iocb to the iocb pool |
e59058c4 JS |
146 | * @phba: Pointer to HBA context object. |
147 | * @iocbq: Pointer to driver iocb object. | |
148 | * | |
149 | * This function is called with hbalock held to release driver | |
150 | * iocb object to the iocb pool. The iotag in the iocb object | |
151 | * does not change for each use of the iocb object. This function | |
152 | * clears all other fields of the iocb object when it is freed. | |
153 | **/ | |
a6ababd2 | 154 | static void |
2e0fef85 | 155 | __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) |
604a3e30 | 156 | { |
2e0fef85 | 157 | size_t start_clean = offsetof(struct lpfc_iocbq, iocb); |
604a3e30 JB |
158 | |
159 | /* | |
160 | * Clean all volatile data fields, preserve iotag and node struct. | |
161 | */ | |
162 | memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean); | |
163 | list_add_tail(&iocbq->list, &phba->lpfc_iocb_list); | |
164 | } | |
165 | ||
e59058c4 | 166 | /** |
3621a710 | 167 | * lpfc_sli_release_iocbq - Release iocb to the iocb pool |
e59058c4 JS |
168 | * @phba: Pointer to HBA context object. |
169 | * @iocbq: Pointer to driver iocb object. | |
170 | * | |
171 | * This function is called with no lock held to release the iocb to | |
172 | * iocb pool. | |
173 | **/ | |
2e0fef85 JS |
174 | void |
175 | lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) | |
176 | { | |
177 | unsigned long iflags; | |
178 | ||
179 | /* | |
180 | * Clean all volatile data fields, preserve iotag and node struct. | |
181 | */ | |
182 | spin_lock_irqsave(&phba->hbalock, iflags); | |
183 | __lpfc_sli_release_iocbq(phba, iocbq); | |
184 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
185 | } | |
186 | ||
a257bf90 JS |
187 | /** |
188 | * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list. | |
189 | * @phba: Pointer to HBA context object. | |
190 | * @iocblist: List of IOCBs. | |
191 | * @ulpstatus: ULP status in IOCB command field. | |
192 | * @ulpWord4: ULP word-4 in IOCB command field. | |
193 | * | |
194 | * This function is called with a list of IOCBs to cancel. It cancels the IOCB | |
195 | * on the list by invoking the complete callback function associated with the | |
196 | * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond | |
197 | * fields. | |
198 | **/ | |
199 | void | |
200 | lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist, | |
201 | uint32_t ulpstatus, uint32_t ulpWord4) | |
202 | { | |
203 | struct lpfc_iocbq *piocb; | |
204 | ||
205 | while (!list_empty(iocblist)) { | |
206 | list_remove_head(iocblist, piocb, struct lpfc_iocbq, list); | |
207 | ||
208 | if (!piocb->iocb_cmpl) | |
209 | lpfc_sli_release_iocbq(phba, piocb); | |
210 | else { | |
211 | piocb->iocb.ulpStatus = ulpstatus; | |
212 | piocb->iocb.un.ulpWord[4] = ulpWord4; | |
213 | (piocb->iocb_cmpl) (phba, piocb, piocb); | |
214 | } | |
215 | } | |
216 | return; | |
217 | } | |
218 | ||
e59058c4 | 219 | /** |
3621a710 JS |
220 | * lpfc_sli_iocb_cmd_type - Get the iocb type |
221 | * @iocb_cmnd: iocb command code. | |
e59058c4 JS |
222 | * |
223 | * This function is called by ring event handler function to get the iocb type. | |
224 | * This function translates the iocb command to an iocb command type used to | |
225 | * decide the final disposition of each completed IOCB. | |
226 | * The function returns | |
227 | * LPFC_UNKNOWN_IOCB if it is an unsupported iocb | |
228 | * LPFC_SOL_IOCB if it is a solicited iocb completion | |
229 | * LPFC_ABORT_IOCB if it is an abort iocb | |
230 | * LPFC_UNSOL_IOCB if it is an unsolicited iocb | |
231 | * | |
232 | * The caller is not required to hold any lock. | |
233 | **/ | |
dea3101e | 234 | static lpfc_iocb_type |
235 | lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd) | |
236 | { | |
237 | lpfc_iocb_type type = LPFC_UNKNOWN_IOCB; | |
238 | ||
239 | if (iocb_cmnd > CMD_MAX_IOCB_CMD) | |
240 | return 0; | |
241 | ||
242 | switch (iocb_cmnd) { | |
243 | case CMD_XMIT_SEQUENCE_CR: | |
244 | case CMD_XMIT_SEQUENCE_CX: | |
245 | case CMD_XMIT_BCAST_CN: | |
246 | case CMD_XMIT_BCAST_CX: | |
247 | case CMD_ELS_REQUEST_CR: | |
248 | case CMD_ELS_REQUEST_CX: | |
249 | case CMD_CREATE_XRI_CR: | |
250 | case CMD_CREATE_XRI_CX: | |
251 | case CMD_GET_RPI_CN: | |
252 | case CMD_XMIT_ELS_RSP_CX: | |
253 | case CMD_GET_RPI_CR: | |
254 | case CMD_FCP_IWRITE_CR: | |
255 | case CMD_FCP_IWRITE_CX: | |
256 | case CMD_FCP_IREAD_CR: | |
257 | case CMD_FCP_IREAD_CX: | |
258 | case CMD_FCP_ICMND_CR: | |
259 | case CMD_FCP_ICMND_CX: | |
f5603511 JS |
260 | case CMD_FCP_TSEND_CX: |
261 | case CMD_FCP_TRSP_CX: | |
262 | case CMD_FCP_TRECEIVE_CX: | |
263 | case CMD_FCP_AUTO_TRSP_CX: | |
dea3101e | 264 | case CMD_ADAPTER_MSG: |
265 | case CMD_ADAPTER_DUMP: | |
266 | case CMD_XMIT_SEQUENCE64_CR: | |
267 | case CMD_XMIT_SEQUENCE64_CX: | |
268 | case CMD_XMIT_BCAST64_CN: | |
269 | case CMD_XMIT_BCAST64_CX: | |
270 | case CMD_ELS_REQUEST64_CR: | |
271 | case CMD_ELS_REQUEST64_CX: | |
272 | case CMD_FCP_IWRITE64_CR: | |
273 | case CMD_FCP_IWRITE64_CX: | |
274 | case CMD_FCP_IREAD64_CR: | |
275 | case CMD_FCP_IREAD64_CX: | |
276 | case CMD_FCP_ICMND64_CR: | |
277 | case CMD_FCP_ICMND64_CX: | |
f5603511 JS |
278 | case CMD_FCP_TSEND64_CX: |
279 | case CMD_FCP_TRSP64_CX: | |
280 | case CMD_FCP_TRECEIVE64_CX: | |
dea3101e | 281 | case CMD_GEN_REQUEST64_CR: |
282 | case CMD_GEN_REQUEST64_CX: | |
283 | case CMD_XMIT_ELS_RSP64_CX: | |
284 | type = LPFC_SOL_IOCB; | |
285 | break; | |
286 | case CMD_ABORT_XRI_CN: | |
287 | case CMD_ABORT_XRI_CX: | |
288 | case CMD_CLOSE_XRI_CN: | |
289 | case CMD_CLOSE_XRI_CX: | |
290 | case CMD_XRI_ABORTED_CX: | |
291 | case CMD_ABORT_MXRI64_CN: | |
292 | type = LPFC_ABORT_IOCB; | |
293 | break; | |
294 | case CMD_RCV_SEQUENCE_CX: | |
295 | case CMD_RCV_ELS_REQ_CX: | |
296 | case CMD_RCV_SEQUENCE64_CX: | |
297 | case CMD_RCV_ELS_REQ64_CX: | |
57127f15 | 298 | case CMD_ASYNC_STATUS: |
ed957684 JS |
299 | case CMD_IOCB_RCV_SEQ64_CX: |
300 | case CMD_IOCB_RCV_ELS64_CX: | |
301 | case CMD_IOCB_RCV_CONT64_CX: | |
3163f725 | 302 | case CMD_IOCB_RET_XRI64_CX: |
dea3101e | 303 | type = LPFC_UNSOL_IOCB; |
304 | break; | |
3163f725 JS |
305 | case CMD_IOCB_XMIT_MSEQ64_CR: |
306 | case CMD_IOCB_XMIT_MSEQ64_CX: | |
307 | case CMD_IOCB_RCV_SEQ_LIST64_CX: | |
308 | case CMD_IOCB_RCV_ELS_LIST64_CX: | |
309 | case CMD_IOCB_CLOSE_EXTENDED_CN: | |
310 | case CMD_IOCB_ABORT_EXTENDED_CN: | |
311 | case CMD_IOCB_RET_HBQE64_CN: | |
312 | case CMD_IOCB_FCP_IBIDIR64_CR: | |
313 | case CMD_IOCB_FCP_IBIDIR64_CX: | |
314 | case CMD_IOCB_FCP_ITASKMGT64_CX: | |
315 | case CMD_IOCB_LOGENTRY_CN: | |
316 | case CMD_IOCB_LOGENTRY_ASYNC_CN: | |
317 | printk("%s - Unhandled SLI-3 Command x%x\n", | |
cadbd4a5 | 318 | __func__, iocb_cmnd); |
3163f725 JS |
319 | type = LPFC_UNKNOWN_IOCB; |
320 | break; | |
dea3101e | 321 | default: |
322 | type = LPFC_UNKNOWN_IOCB; | |
323 | break; | |
324 | } | |
325 | ||
326 | return type; | |
327 | } | |
328 | ||
e59058c4 | 329 | /** |
3621a710 | 330 | * lpfc_sli_ring_map - Issue config_ring mbox for all rings |
e59058c4 JS |
331 | * @phba: Pointer to HBA context object. |
332 | * | |
333 | * This function is called from SLI initialization code | |
334 | * to configure every ring of the HBA's SLI interface. The | |
335 | * caller is not required to hold any lock. This function issues | |
336 | * a config_ring mailbox command for each ring. | |
337 | * This function returns zero if successful else returns a negative | |
338 | * error code. | |
339 | **/ | |
dea3101e | 340 | static int |
ed957684 | 341 | lpfc_sli_ring_map(struct lpfc_hba *phba) |
dea3101e | 342 | { |
343 | struct lpfc_sli *psli = &phba->sli; | |
ed957684 JS |
344 | LPFC_MBOXQ_t *pmb; |
345 | MAILBOX_t *pmbox; | |
346 | int i, rc, ret = 0; | |
dea3101e | 347 | |
ed957684 JS |
348 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
349 | if (!pmb) | |
350 | return -ENOMEM; | |
351 | pmbox = &pmb->mb; | |
352 | phba->link_state = LPFC_INIT_MBX_CMDS; | |
dea3101e | 353 | for (i = 0; i < psli->num_rings; i++) { |
dea3101e | 354 | lpfc_config_ring(phba, i, pmb); |
355 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
356 | if (rc != MBX_SUCCESS) { | |
92d7f7b0 | 357 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 358 | "0446 Adapter failed to init (%d), " |
dea3101e | 359 | "mbxCmd x%x CFG_RING, mbxStatus x%x, " |
360 | "ring %d\n", | |
e8b62011 JS |
361 | rc, pmbox->mbxCommand, |
362 | pmbox->mbxStatus, i); | |
2e0fef85 | 363 | phba->link_state = LPFC_HBA_ERROR; |
ed957684 JS |
364 | ret = -ENXIO; |
365 | break; | |
dea3101e | 366 | } |
367 | } | |
ed957684 JS |
368 | mempool_free(pmb, phba->mbox_mem_pool); |
369 | return ret; | |
dea3101e | 370 | } |
371 | ||
e59058c4 | 372 | /** |
3621a710 | 373 | * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq |
e59058c4 JS |
374 | * @phba: Pointer to HBA context object. |
375 | * @pring: Pointer to driver SLI ring object. | |
376 | * @piocb: Pointer to the driver iocb object. | |
377 | * | |
378 | * This function is called with hbalock held. The function adds the | |
379 | * new iocb to txcmplq of the given ring. This function always returns | |
380 | * 0. If this function is called for ELS ring, this function checks if | |
381 | * there is a vport associated with the ELS command. This function also | |
382 | * starts els_tmofunc timer if this is an ELS command. | |
383 | **/ | |
dea3101e | 384 | static int |
2e0fef85 JS |
385 | lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
386 | struct lpfc_iocbq *piocb) | |
dea3101e | 387 | { |
dea3101e | 388 | list_add_tail(&piocb->list, &pring->txcmplq); |
389 | pring->txcmplq_cnt++; | |
92d7f7b0 JS |
390 | if ((unlikely(pring->ringno == LPFC_ELS_RING)) && |
391 | (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) && | |
392 | (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) { | |
393 | if (!piocb->vport) | |
394 | BUG(); | |
395 | else | |
396 | mod_timer(&piocb->vport->els_tmofunc, | |
397 | jiffies + HZ * (phba->fc_ratov << 1)); | |
398 | } | |
399 | ||
dea3101e | 400 | |
2e0fef85 | 401 | return 0; |
dea3101e | 402 | } |
403 | ||
e59058c4 | 404 | /** |
3621a710 | 405 | * lpfc_sli_ringtx_get - Get first element of the txq |
e59058c4 JS |
406 | * @phba: Pointer to HBA context object. |
407 | * @pring: Pointer to driver SLI ring object. | |
408 | * | |
409 | * This function is called with hbalock held to get next | |
410 | * iocb in txq of the given ring. If there is any iocb in | |
411 | * the txq, the function returns first iocb in the list after | |
412 | * removing the iocb from the list, else it returns NULL. | |
413 | **/ | |
dea3101e | 414 | static struct lpfc_iocbq * |
2e0fef85 | 415 | lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 416 | { |
dea3101e | 417 | struct lpfc_iocbq *cmd_iocb; |
418 | ||
858c9f6c JS |
419 | list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list); |
420 | if (cmd_iocb != NULL) | |
dea3101e | 421 | pring->txq_cnt--; |
2e0fef85 | 422 | return cmd_iocb; |
dea3101e | 423 | } |
424 | ||
e59058c4 | 425 | /** |
3621a710 | 426 | * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring |
e59058c4 JS |
427 | * @phba: Pointer to HBA context object. |
428 | * @pring: Pointer to driver SLI ring object. | |
429 | * | |
430 | * This function is called with hbalock held and the caller must post the | |
431 | * iocb without releasing the lock. If the caller releases the lock, | |
432 | * iocb slot returned by the function is not guaranteed to be available. | |
433 | * The function returns pointer to the next available iocb slot if there | |
434 | * is available slot in the ring, else it returns NULL. | |
435 | * If the get index of the ring is ahead of the put index, the function | |
436 | * will post an error attention event to the worker thread to take the | |
437 | * HBA to offline state. | |
438 | **/ | |
dea3101e | 439 | static IOCB_t * |
440 | lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
441 | { | |
34b02dcd | 442 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
dea3101e | 443 | uint32_t max_cmd_idx = pring->numCiocb; |
dea3101e | 444 | if ((pring->next_cmdidx == pring->cmdidx) && |
445 | (++pring->next_cmdidx >= max_cmd_idx)) | |
446 | pring->next_cmdidx = 0; | |
447 | ||
448 | if (unlikely(pring->local_getidx == pring->next_cmdidx)) { | |
449 | ||
450 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
451 | ||
452 | if (unlikely(pring->local_getidx >= max_cmd_idx)) { | |
453 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 454 | "0315 Ring %d issue: portCmdGet %d " |
025dfdaf | 455 | "is bigger than cmd ring %d\n", |
e8b62011 | 456 | pring->ringno, |
dea3101e | 457 | pring->local_getidx, max_cmd_idx); |
458 | ||
2e0fef85 | 459 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 460 | /* |
461 | * All error attention handlers are posted to | |
462 | * worker thread | |
463 | */ | |
464 | phba->work_ha |= HA_ERATT; | |
465 | phba->work_hs = HS_FFER3; | |
92d7f7b0 | 466 | |
5e9d9b82 | 467 | lpfc_worker_wake_up(phba); |
dea3101e | 468 | |
469 | return NULL; | |
470 | } | |
471 | ||
472 | if (pring->local_getidx == pring->next_cmdidx) | |
473 | return NULL; | |
474 | } | |
475 | ||
ed957684 | 476 | return lpfc_cmd_iocb(phba, pring); |
dea3101e | 477 | } |
478 | ||
e59058c4 | 479 | /** |
3621a710 | 480 | * lpfc_sli_next_iotag - Get an iotag for the iocb |
e59058c4 JS |
481 | * @phba: Pointer to HBA context object. |
482 | * @iocbq: Pointer to driver iocb object. | |
483 | * | |
484 | * This function gets an iotag for the iocb. If there is no unused iotag and | |
485 | * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup | |
486 | * array and assigns a new iotag. | |
487 | * The function returns the allocated iotag if successful, else returns zero. | |
488 | * Zero is not a valid iotag. | |
489 | * The caller is not required to hold any lock. | |
490 | **/ | |
604a3e30 | 491 | uint16_t |
2e0fef85 | 492 | lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) |
dea3101e | 493 | { |
2e0fef85 JS |
494 | struct lpfc_iocbq **new_arr; |
495 | struct lpfc_iocbq **old_arr; | |
604a3e30 JB |
496 | size_t new_len; |
497 | struct lpfc_sli *psli = &phba->sli; | |
498 | uint16_t iotag; | |
dea3101e | 499 | |
2e0fef85 | 500 | spin_lock_irq(&phba->hbalock); |
604a3e30 JB |
501 | iotag = psli->last_iotag; |
502 | if(++iotag < psli->iocbq_lookup_len) { | |
503 | psli->last_iotag = iotag; | |
504 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 505 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
506 | iocbq->iotag = iotag; |
507 | return iotag; | |
2e0fef85 | 508 | } else if (psli->iocbq_lookup_len < (0xffff |
604a3e30 JB |
509 | - LPFC_IOCBQ_LOOKUP_INCREMENT)) { |
510 | new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT; | |
2e0fef85 JS |
511 | spin_unlock_irq(&phba->hbalock); |
512 | new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *), | |
604a3e30 JB |
513 | GFP_KERNEL); |
514 | if (new_arr) { | |
2e0fef85 | 515 | spin_lock_irq(&phba->hbalock); |
604a3e30 JB |
516 | old_arr = psli->iocbq_lookup; |
517 | if (new_len <= psli->iocbq_lookup_len) { | |
518 | /* highly unprobable case */ | |
519 | kfree(new_arr); | |
520 | iotag = psli->last_iotag; | |
521 | if(++iotag < psli->iocbq_lookup_len) { | |
522 | psli->last_iotag = iotag; | |
523 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 524 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
525 | iocbq->iotag = iotag; |
526 | return iotag; | |
527 | } | |
2e0fef85 | 528 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
529 | return 0; |
530 | } | |
531 | if (psli->iocbq_lookup) | |
532 | memcpy(new_arr, old_arr, | |
533 | ((psli->last_iotag + 1) * | |
311464ec | 534 | sizeof (struct lpfc_iocbq *))); |
604a3e30 JB |
535 | psli->iocbq_lookup = new_arr; |
536 | psli->iocbq_lookup_len = new_len; | |
537 | psli->last_iotag = iotag; | |
538 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 539 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
540 | iocbq->iotag = iotag; |
541 | kfree(old_arr); | |
542 | return iotag; | |
543 | } | |
8f6d98d2 | 544 | } else |
2e0fef85 | 545 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 546 | |
604a3e30 | 547 | lpfc_printf_log(phba, KERN_ERR,LOG_SLI, |
e8b62011 JS |
548 | "0318 Failed to allocate IOTAG.last IOTAG is %d\n", |
549 | psli->last_iotag); | |
dea3101e | 550 | |
604a3e30 | 551 | return 0; |
dea3101e | 552 | } |
553 | ||
e59058c4 | 554 | /** |
3621a710 | 555 | * lpfc_sli_submit_iocb - Submit an iocb to the firmware |
e59058c4 JS |
556 | * @phba: Pointer to HBA context object. |
557 | * @pring: Pointer to driver SLI ring object. | |
558 | * @iocb: Pointer to iocb slot in the ring. | |
559 | * @nextiocb: Pointer to driver iocb object which need to be | |
560 | * posted to firmware. | |
561 | * | |
562 | * This function is called with hbalock held to post a new iocb to | |
563 | * the firmware. This function copies the new iocb to ring iocb slot and | |
564 | * updates the ring pointers. It adds the new iocb to txcmplq if there is | |
565 | * a completion call back for this iocb else the function will free the | |
566 | * iocb object. | |
567 | **/ | |
dea3101e | 568 | static void |
569 | lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
570 | IOCB_t *iocb, struct lpfc_iocbq *nextiocb) | |
571 | { | |
572 | /* | |
604a3e30 | 573 | * Set up an iotag |
dea3101e | 574 | */ |
604a3e30 | 575 | nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0; |
dea3101e | 576 | |
e2a0a9d6 | 577 | |
a58cbd52 JS |
578 | if (pring->ringno == LPFC_ELS_RING) { |
579 | lpfc_debugfs_slow_ring_trc(phba, | |
580 | "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x", | |
581 | *(((uint32_t *) &nextiocb->iocb) + 4), | |
582 | *(((uint32_t *) &nextiocb->iocb) + 6), | |
583 | *(((uint32_t *) &nextiocb->iocb) + 7)); | |
584 | } | |
585 | ||
dea3101e | 586 | /* |
587 | * Issue iocb command to adapter | |
588 | */ | |
92d7f7b0 | 589 | lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size); |
dea3101e | 590 | wmb(); |
591 | pring->stats.iocb_cmd++; | |
592 | ||
593 | /* | |
594 | * If there is no completion routine to call, we can release the | |
595 | * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF, | |
596 | * that have no rsp ring completion, iocb_cmpl MUST be NULL. | |
597 | */ | |
598 | if (nextiocb->iocb_cmpl) | |
599 | lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb); | |
604a3e30 | 600 | else |
2e0fef85 | 601 | __lpfc_sli_release_iocbq(phba, nextiocb); |
dea3101e | 602 | |
603 | /* | |
604 | * Let the HBA know what IOCB slot will be the next one the | |
605 | * driver will put a command into. | |
606 | */ | |
607 | pring->cmdidx = pring->next_cmdidx; | |
ed957684 | 608 | writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx); |
dea3101e | 609 | } |
610 | ||
e59058c4 | 611 | /** |
3621a710 | 612 | * lpfc_sli_update_full_ring - Update the chip attention register |
e59058c4 JS |
613 | * @phba: Pointer to HBA context object. |
614 | * @pring: Pointer to driver SLI ring object. | |
615 | * | |
616 | * The caller is not required to hold any lock for calling this function. | |
617 | * This function updates the chip attention bits for the ring to inform firmware | |
618 | * that there are pending work to be done for this ring and requests an | |
619 | * interrupt when there is space available in the ring. This function is | |
620 | * called when the driver is unable to post more iocbs to the ring due | |
621 | * to unavailability of space in the ring. | |
622 | **/ | |
dea3101e | 623 | static void |
2e0fef85 | 624 | lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 625 | { |
626 | int ringno = pring->ringno; | |
627 | ||
628 | pring->flag |= LPFC_CALL_RING_AVAILABLE; | |
629 | ||
630 | wmb(); | |
631 | ||
632 | /* | |
633 | * Set ring 'ringno' to SET R0CE_REQ in Chip Att register. | |
634 | * The HBA will tell us when an IOCB entry is available. | |
635 | */ | |
636 | writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr); | |
637 | readl(phba->CAregaddr); /* flush */ | |
638 | ||
639 | pring->stats.iocb_cmd_full++; | |
640 | } | |
641 | ||
e59058c4 | 642 | /** |
3621a710 | 643 | * lpfc_sli_update_ring - Update chip attention register |
e59058c4 JS |
644 | * @phba: Pointer to HBA context object. |
645 | * @pring: Pointer to driver SLI ring object. | |
646 | * | |
647 | * This function updates the chip attention register bit for the | |
648 | * given ring to inform HBA that there is more work to be done | |
649 | * in this ring. The caller is not required to hold any lock. | |
650 | **/ | |
dea3101e | 651 | static void |
2e0fef85 | 652 | lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 653 | { |
654 | int ringno = pring->ringno; | |
655 | ||
656 | /* | |
657 | * Tell the HBA that there is work to do in this ring. | |
658 | */ | |
34b02dcd JS |
659 | if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) { |
660 | wmb(); | |
661 | writel(CA_R0ATT << (ringno * 4), phba->CAregaddr); | |
662 | readl(phba->CAregaddr); /* flush */ | |
663 | } | |
dea3101e | 664 | } |
665 | ||
e59058c4 | 666 | /** |
3621a710 | 667 | * lpfc_sli_resume_iocb - Process iocbs in the txq |
e59058c4 JS |
668 | * @phba: Pointer to HBA context object. |
669 | * @pring: Pointer to driver SLI ring object. | |
670 | * | |
671 | * This function is called with hbalock held to post pending iocbs | |
672 | * in the txq to the firmware. This function is called when driver | |
673 | * detects space available in the ring. | |
674 | **/ | |
dea3101e | 675 | static void |
2e0fef85 | 676 | lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 677 | { |
678 | IOCB_t *iocb; | |
679 | struct lpfc_iocbq *nextiocb; | |
680 | ||
681 | /* | |
682 | * Check to see if: | |
683 | * (a) there is anything on the txq to send | |
684 | * (b) link is up | |
685 | * (c) link attention events can be processed (fcp ring only) | |
686 | * (d) IOCB processing is not blocked by the outstanding mbox command. | |
687 | */ | |
688 | if (pring->txq_cnt && | |
2e0fef85 | 689 | lpfc_is_link_up(phba) && |
dea3101e | 690 | (pring->ringno != phba->sli.fcp_ring || |
0b727fea | 691 | phba->sli.sli_flag & LPFC_PROCESS_LA)) { |
dea3101e | 692 | |
693 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && | |
694 | (nextiocb = lpfc_sli_ringtx_get(phba, pring))) | |
695 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
696 | ||
697 | if (iocb) | |
698 | lpfc_sli_update_ring(phba, pring); | |
699 | else | |
700 | lpfc_sli_update_full_ring(phba, pring); | |
701 | } | |
702 | ||
703 | return; | |
704 | } | |
705 | ||
e59058c4 | 706 | /** |
3621a710 | 707 | * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ |
e59058c4 JS |
708 | * @phba: Pointer to HBA context object. |
709 | * @hbqno: HBQ number. | |
710 | * | |
711 | * This function is called with hbalock held to get the next | |
712 | * available slot for the given HBQ. If there is free slot | |
713 | * available for the HBQ it will return pointer to the next available | |
714 | * HBQ entry else it will return NULL. | |
715 | **/ | |
a6ababd2 | 716 | static struct lpfc_hbq_entry * |
ed957684 JS |
717 | lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno) |
718 | { | |
719 | struct hbq_s *hbqp = &phba->hbqs[hbqno]; | |
720 | ||
721 | if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx && | |
722 | ++hbqp->next_hbqPutIdx >= hbqp->entry_count) | |
723 | hbqp->next_hbqPutIdx = 0; | |
724 | ||
725 | if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) { | |
92d7f7b0 | 726 | uint32_t raw_index = phba->hbq_get[hbqno]; |
ed957684 JS |
727 | uint32_t getidx = le32_to_cpu(raw_index); |
728 | ||
729 | hbqp->local_hbqGetIdx = getidx; | |
730 | ||
731 | if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) { | |
732 | lpfc_printf_log(phba, KERN_ERR, | |
92d7f7b0 | 733 | LOG_SLI | LOG_VPORT, |
e8b62011 | 734 | "1802 HBQ %d: local_hbqGetIdx " |
ed957684 | 735 | "%u is > than hbqp->entry_count %u\n", |
e8b62011 | 736 | hbqno, hbqp->local_hbqGetIdx, |
ed957684 JS |
737 | hbqp->entry_count); |
738 | ||
739 | phba->link_state = LPFC_HBA_ERROR; | |
740 | return NULL; | |
741 | } | |
742 | ||
743 | if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx) | |
744 | return NULL; | |
745 | } | |
746 | ||
51ef4c26 JS |
747 | return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt + |
748 | hbqp->hbqPutIdx; | |
ed957684 JS |
749 | } |
750 | ||
e59058c4 | 751 | /** |
3621a710 | 752 | * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers |
e59058c4 JS |
753 | * @phba: Pointer to HBA context object. |
754 | * | |
755 | * This function is called with no lock held to free all the | |
756 | * hbq buffers while uninitializing the SLI interface. It also | |
757 | * frees the HBQ buffers returned by the firmware but not yet | |
758 | * processed by the upper layers. | |
759 | **/ | |
ed957684 JS |
760 | void |
761 | lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba) | |
762 | { | |
92d7f7b0 JS |
763 | struct lpfc_dmabuf *dmabuf, *next_dmabuf; |
764 | struct hbq_dmabuf *hbq_buf; | |
3163f725 | 765 | unsigned long flags; |
51ef4c26 | 766 | int i, hbq_count; |
3163f725 | 767 | uint32_t hbqno; |
ed957684 | 768 | |
51ef4c26 | 769 | hbq_count = lpfc_sli_hbq_count(); |
ed957684 | 770 | /* Return all memory used by all HBQs */ |
3163f725 | 771 | spin_lock_irqsave(&phba->hbalock, flags); |
51ef4c26 JS |
772 | for (i = 0; i < hbq_count; ++i) { |
773 | list_for_each_entry_safe(dmabuf, next_dmabuf, | |
774 | &phba->hbqs[i].hbq_buffer_list, list) { | |
775 | hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf); | |
776 | list_del(&hbq_buf->dbuf.list); | |
777 | (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf); | |
778 | } | |
a8adb832 | 779 | phba->hbqs[i].buffer_count = 0; |
ed957684 | 780 | } |
3163f725 JS |
781 | /* Return all HBQ buffer that are in-fly */ |
782 | list_for_each_entry_safe(dmabuf, next_dmabuf, | |
783 | &phba->hbqbuf_in_list, list) { | |
784 | hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf); | |
785 | list_del(&hbq_buf->dbuf.list); | |
786 | if (hbq_buf->tag == -1) { | |
787 | (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer) | |
788 | (phba, hbq_buf); | |
789 | } else { | |
790 | hbqno = hbq_buf->tag >> 16; | |
791 | if (hbqno >= LPFC_MAX_HBQS) | |
792 | (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer) | |
793 | (phba, hbq_buf); | |
794 | else | |
795 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, | |
796 | hbq_buf); | |
797 | } | |
798 | } | |
799 | ||
800 | /* Mark the HBQs not in use */ | |
801 | phba->hbq_in_use = 0; | |
802 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
ed957684 JS |
803 | } |
804 | ||
e59058c4 | 805 | /** |
3621a710 | 806 | * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware |
e59058c4 JS |
807 | * @phba: Pointer to HBA context object. |
808 | * @hbqno: HBQ number. | |
809 | * @hbq_buf: Pointer to HBQ buffer. | |
810 | * | |
811 | * This function is called with the hbalock held to post a | |
812 | * hbq buffer to the firmware. If the function finds an empty | |
813 | * slot in the HBQ, it will post the buffer. The function will return | |
814 | * pointer to the hbq entry if it successfully post the buffer | |
815 | * else it will return NULL. | |
816 | **/ | |
51ef4c26 | 817 | static struct lpfc_hbq_entry * |
ed957684 | 818 | lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno, |
92d7f7b0 | 819 | struct hbq_dmabuf *hbq_buf) |
ed957684 JS |
820 | { |
821 | struct lpfc_hbq_entry *hbqe; | |
92d7f7b0 | 822 | dma_addr_t physaddr = hbq_buf->dbuf.phys; |
ed957684 JS |
823 | |
824 | /* Get next HBQ entry slot to use */ | |
825 | hbqe = lpfc_sli_next_hbq_slot(phba, hbqno); | |
826 | if (hbqe) { | |
827 | struct hbq_s *hbqp = &phba->hbqs[hbqno]; | |
828 | ||
92d7f7b0 JS |
829 | hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr)); |
830 | hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr)); | |
51ef4c26 | 831 | hbqe->bde.tus.f.bdeSize = hbq_buf->size; |
ed957684 | 832 | hbqe->bde.tus.f.bdeFlags = 0; |
92d7f7b0 JS |
833 | hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w); |
834 | hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag); | |
835 | /* Sync SLIM */ | |
ed957684 JS |
836 | hbqp->hbqPutIdx = hbqp->next_hbqPutIdx; |
837 | writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno); | |
92d7f7b0 | 838 | /* flush */ |
ed957684 | 839 | readl(phba->hbq_put + hbqno); |
51ef4c26 | 840 | list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list); |
ed957684 | 841 | } |
51ef4c26 | 842 | return hbqe; |
ed957684 JS |
843 | } |
844 | ||
e59058c4 | 845 | /* HBQ for ELS and CT traffic. */ |
92d7f7b0 JS |
846 | static struct lpfc_hbq_init lpfc_els_hbq = { |
847 | .rn = 1, | |
848 | .entry_count = 200, | |
849 | .mask_count = 0, | |
850 | .profile = 0, | |
51ef4c26 | 851 | .ring_mask = (1 << LPFC_ELS_RING), |
92d7f7b0 | 852 | .buffer_count = 0, |
a257bf90 JS |
853 | .init_count = 40, |
854 | .add_count = 40, | |
92d7f7b0 | 855 | }; |
ed957684 | 856 | |
e59058c4 | 857 | /* HBQ for the extra ring if needed */ |
51ef4c26 JS |
858 | static struct lpfc_hbq_init lpfc_extra_hbq = { |
859 | .rn = 1, | |
860 | .entry_count = 200, | |
861 | .mask_count = 0, | |
862 | .profile = 0, | |
863 | .ring_mask = (1 << LPFC_EXTRA_RING), | |
864 | .buffer_count = 0, | |
865 | .init_count = 0, | |
866 | .add_count = 5, | |
867 | }; | |
868 | ||
e59058c4 | 869 | /* Array of HBQs */ |
78b2d852 | 870 | struct lpfc_hbq_init *lpfc_hbq_defs[] = { |
92d7f7b0 | 871 | &lpfc_els_hbq, |
51ef4c26 | 872 | &lpfc_extra_hbq, |
92d7f7b0 | 873 | }; |
ed957684 | 874 | |
e59058c4 | 875 | /** |
3621a710 | 876 | * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ |
e59058c4 JS |
877 | * @phba: Pointer to HBA context object. |
878 | * @hbqno: HBQ number. | |
879 | * @count: Number of HBQ buffers to be posted. | |
880 | * | |
d7c255b2 JS |
881 | * This function is called with no lock held to post more hbq buffers to the |
882 | * given HBQ. The function returns the number of HBQ buffers successfully | |
883 | * posted. | |
e59058c4 | 884 | **/ |
311464ec | 885 | static int |
92d7f7b0 | 886 | lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count) |
ed957684 | 887 | { |
d7c255b2 | 888 | uint32_t i, posted = 0; |
3163f725 | 889 | unsigned long flags; |
92d7f7b0 | 890 | struct hbq_dmabuf *hbq_buffer; |
d7c255b2 | 891 | LIST_HEAD(hbq_buf_list); |
eafe1df9 | 892 | if (!phba->hbqs[hbqno].hbq_alloc_buffer) |
51ef4c26 | 893 | return 0; |
51ef4c26 | 894 | |
d7c255b2 JS |
895 | if ((phba->hbqs[hbqno].buffer_count + count) > |
896 | lpfc_hbq_defs[hbqno]->entry_count) | |
897 | count = lpfc_hbq_defs[hbqno]->entry_count - | |
898 | phba->hbqs[hbqno].buffer_count; | |
899 | if (!count) | |
900 | return 0; | |
901 | /* Allocate HBQ entries */ | |
902 | for (i = 0; i < count; i++) { | |
903 | hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba); | |
904 | if (!hbq_buffer) | |
905 | break; | |
906 | list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list); | |
907 | } | |
3163f725 JS |
908 | /* Check whether HBQ is still in use */ |
909 | spin_lock_irqsave(&phba->hbalock, flags); | |
eafe1df9 | 910 | if (!phba->hbq_in_use) |
d7c255b2 JS |
911 | goto err; |
912 | while (!list_empty(&hbq_buf_list)) { | |
913 | list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf, | |
914 | dbuf.list); | |
915 | hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count | | |
916 | (hbqno << 16)); | |
917 | if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) { | |
a8adb832 | 918 | phba->hbqs[hbqno].buffer_count++; |
d7c255b2 JS |
919 | posted++; |
920 | } else | |
51ef4c26 | 921 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); |
ed957684 | 922 | } |
3163f725 | 923 | spin_unlock_irqrestore(&phba->hbalock, flags); |
d7c255b2 JS |
924 | return posted; |
925 | err: | |
eafe1df9 | 926 | spin_unlock_irqrestore(&phba->hbalock, flags); |
d7c255b2 JS |
927 | while (!list_empty(&hbq_buf_list)) { |
928 | list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf, | |
929 | dbuf.list); | |
930 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); | |
931 | } | |
932 | return 0; | |
ed957684 JS |
933 | } |
934 | ||
e59058c4 | 935 | /** |
3621a710 | 936 | * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware |
e59058c4 JS |
937 | * @phba: Pointer to HBA context object. |
938 | * @qno: HBQ number. | |
939 | * | |
940 | * This function posts more buffers to the HBQ. This function | |
d7c255b2 JS |
941 | * is called with no lock held. The function returns the number of HBQ entries |
942 | * successfully allocated. | |
e59058c4 | 943 | **/ |
92d7f7b0 JS |
944 | int |
945 | lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno) | |
ed957684 | 946 | { |
92d7f7b0 JS |
947 | return(lpfc_sli_hbqbuf_fill_hbqs(phba, qno, |
948 | lpfc_hbq_defs[qno]->add_count)); | |
949 | } | |
ed957684 | 950 | |
e59058c4 | 951 | /** |
3621a710 | 952 | * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ |
e59058c4 JS |
953 | * @phba: Pointer to HBA context object. |
954 | * @qno: HBQ queue number. | |
955 | * | |
956 | * This function is called from SLI initialization code path with | |
957 | * no lock held to post initial HBQ buffers to firmware. The | |
d7c255b2 | 958 | * function returns the number of HBQ entries successfully allocated. |
e59058c4 | 959 | **/ |
a6ababd2 | 960 | static int |
92d7f7b0 JS |
961 | lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno) |
962 | { | |
963 | return(lpfc_sli_hbqbuf_fill_hbqs(phba, qno, | |
964 | lpfc_hbq_defs[qno]->init_count)); | |
ed957684 JS |
965 | } |
966 | ||
e59058c4 | 967 | /** |
3621a710 | 968 | * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag |
e59058c4 JS |
969 | * @phba: Pointer to HBA context object. |
970 | * @tag: Tag of the hbq buffer. | |
971 | * | |
972 | * This function is called with hbalock held. This function searches | |
973 | * for the hbq buffer associated with the given tag in the hbq buffer | |
974 | * list. If it finds the hbq buffer, it returns the hbq_buffer other wise | |
975 | * it returns NULL. | |
976 | **/ | |
a6ababd2 | 977 | static struct hbq_dmabuf * |
92d7f7b0 | 978 | lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag) |
ed957684 | 979 | { |
92d7f7b0 JS |
980 | struct lpfc_dmabuf *d_buf; |
981 | struct hbq_dmabuf *hbq_buf; | |
51ef4c26 JS |
982 | uint32_t hbqno; |
983 | ||
984 | hbqno = tag >> 16; | |
a0a74e45 | 985 | if (hbqno >= LPFC_MAX_HBQS) |
51ef4c26 | 986 | return NULL; |
ed957684 | 987 | |
51ef4c26 | 988 | list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) { |
92d7f7b0 | 989 | hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); |
51ef4c26 | 990 | if (hbq_buf->tag == tag) { |
92d7f7b0 | 991 | return hbq_buf; |
ed957684 JS |
992 | } |
993 | } | |
92d7f7b0 | 994 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT, |
e8b62011 | 995 | "1803 Bad hbq tag. Data: x%x x%x\n", |
a8adb832 | 996 | tag, phba->hbqs[tag >> 16].buffer_count); |
92d7f7b0 | 997 | return NULL; |
ed957684 JS |
998 | } |
999 | ||
e59058c4 | 1000 | /** |
3621a710 | 1001 | * lpfc_sli_free_hbq - Give back the hbq buffer to firmware |
e59058c4 JS |
1002 | * @phba: Pointer to HBA context object. |
1003 | * @hbq_buffer: Pointer to HBQ buffer. | |
1004 | * | |
1005 | * This function is called with hbalock. This function gives back | |
1006 | * the hbq buffer to firmware. If the HBQ does not have space to | |
1007 | * post the buffer, it will free the buffer. | |
1008 | **/ | |
ed957684 | 1009 | void |
51ef4c26 | 1010 | lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer) |
ed957684 JS |
1011 | { |
1012 | uint32_t hbqno; | |
1013 | ||
51ef4c26 JS |
1014 | if (hbq_buffer) { |
1015 | hbqno = hbq_buffer->tag >> 16; | |
1016 | if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) { | |
1017 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); | |
1018 | } | |
ed957684 JS |
1019 | } |
1020 | } | |
1021 | ||
e59058c4 | 1022 | /** |
3621a710 | 1023 | * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox |
e59058c4 JS |
1024 | * @mbxCommand: mailbox command code. |
1025 | * | |
1026 | * This function is called by the mailbox event handler function to verify | |
1027 | * that the completed mailbox command is a legitimate mailbox command. If the | |
1028 | * completed mailbox is not known to the function, it will return MBX_SHUTDOWN | |
1029 | * and the mailbox event handler will take the HBA offline. | |
1030 | **/ | |
dea3101e | 1031 | static int |
1032 | lpfc_sli_chk_mbx_command(uint8_t mbxCommand) | |
1033 | { | |
1034 | uint8_t ret; | |
1035 | ||
1036 | switch (mbxCommand) { | |
1037 | case MBX_LOAD_SM: | |
1038 | case MBX_READ_NV: | |
1039 | case MBX_WRITE_NV: | |
a8adb832 | 1040 | case MBX_WRITE_VPARMS: |
dea3101e | 1041 | case MBX_RUN_BIU_DIAG: |
1042 | case MBX_INIT_LINK: | |
1043 | case MBX_DOWN_LINK: | |
1044 | case MBX_CONFIG_LINK: | |
1045 | case MBX_CONFIG_RING: | |
1046 | case MBX_RESET_RING: | |
1047 | case MBX_READ_CONFIG: | |
1048 | case MBX_READ_RCONFIG: | |
1049 | case MBX_READ_SPARM: | |
1050 | case MBX_READ_STATUS: | |
1051 | case MBX_READ_RPI: | |
1052 | case MBX_READ_XRI: | |
1053 | case MBX_READ_REV: | |
1054 | case MBX_READ_LNK_STAT: | |
1055 | case MBX_REG_LOGIN: | |
1056 | case MBX_UNREG_LOGIN: | |
1057 | case MBX_READ_LA: | |
1058 | case MBX_CLEAR_LA: | |
1059 | case MBX_DUMP_MEMORY: | |
1060 | case MBX_DUMP_CONTEXT: | |
1061 | case MBX_RUN_DIAGS: | |
1062 | case MBX_RESTART: | |
1063 | case MBX_UPDATE_CFG: | |
1064 | case MBX_DOWN_LOAD: | |
1065 | case MBX_DEL_LD_ENTRY: | |
1066 | case MBX_RUN_PROGRAM: | |
1067 | case MBX_SET_MASK: | |
09372820 | 1068 | case MBX_SET_VARIABLE: |
dea3101e | 1069 | case MBX_UNREG_D_ID: |
41415862 | 1070 | case MBX_KILL_BOARD: |
dea3101e | 1071 | case MBX_CONFIG_FARP: |
41415862 | 1072 | case MBX_BEACON: |
dea3101e | 1073 | case MBX_LOAD_AREA: |
1074 | case MBX_RUN_BIU_DIAG64: | |
1075 | case MBX_CONFIG_PORT: | |
1076 | case MBX_READ_SPARM64: | |
1077 | case MBX_READ_RPI64: | |
1078 | case MBX_REG_LOGIN64: | |
1079 | case MBX_READ_LA64: | |
09372820 | 1080 | case MBX_WRITE_WWN: |
dea3101e | 1081 | case MBX_SET_DEBUG: |
1082 | case MBX_LOAD_EXP_ROM: | |
57127f15 | 1083 | case MBX_ASYNCEVT_ENABLE: |
92d7f7b0 JS |
1084 | case MBX_REG_VPI: |
1085 | case MBX_UNREG_VPI: | |
858c9f6c | 1086 | case MBX_HEARTBEAT: |
84774a4d JS |
1087 | case MBX_PORT_CAPABILITIES: |
1088 | case MBX_PORT_IOV_CONTROL: | |
dea3101e | 1089 | ret = mbxCommand; |
1090 | break; | |
1091 | default: | |
1092 | ret = MBX_SHUTDOWN; | |
1093 | break; | |
1094 | } | |
2e0fef85 | 1095 | return ret; |
dea3101e | 1096 | } |
e59058c4 JS |
1097 | |
1098 | /** | |
3621a710 | 1099 | * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler |
e59058c4 JS |
1100 | * @phba: Pointer to HBA context object. |
1101 | * @pmboxq: Pointer to mailbox command. | |
1102 | * | |
1103 | * This is completion handler function for mailbox commands issued from | |
1104 | * lpfc_sli_issue_mbox_wait function. This function is called by the | |
1105 | * mailbox event handler function with no lock held. This function | |
1106 | * will wake up thread waiting on the wait queue pointed by context1 | |
1107 | * of the mailbox. | |
1108 | **/ | |
dea3101e | 1109 | static void |
2e0fef85 | 1110 | lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) |
dea3101e | 1111 | { |
1112 | wait_queue_head_t *pdone_q; | |
858c9f6c | 1113 | unsigned long drvr_flag; |
dea3101e | 1114 | |
1115 | /* | |
1116 | * If pdone_q is empty, the driver thread gave up waiting and | |
1117 | * continued running. | |
1118 | */ | |
7054a606 | 1119 | pmboxq->mbox_flag |= LPFC_MBX_WAKE; |
858c9f6c | 1120 | spin_lock_irqsave(&phba->hbalock, drvr_flag); |
dea3101e | 1121 | pdone_q = (wait_queue_head_t *) pmboxq->context1; |
1122 | if (pdone_q) | |
1123 | wake_up_interruptible(pdone_q); | |
858c9f6c | 1124 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 1125 | return; |
1126 | } | |
1127 | ||
e59058c4 JS |
1128 | |
1129 | /** | |
3621a710 | 1130 | * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler |
e59058c4 JS |
1131 | * @phba: Pointer to HBA context object. |
1132 | * @pmb: Pointer to mailbox object. | |
1133 | * | |
1134 | * This function is the default mailbox completion handler. It | |
1135 | * frees the memory resources associated with the completed mailbox | |
1136 | * command. If the completed command is a REG_LOGIN mailbox command, | |
1137 | * this function will issue a UREG_LOGIN to re-claim the RPI. | |
1138 | **/ | |
dea3101e | 1139 | void |
2e0fef85 | 1140 | lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
dea3101e | 1141 | { |
1142 | struct lpfc_dmabuf *mp; | |
7054a606 JS |
1143 | uint16_t rpi; |
1144 | int rc; | |
1145 | ||
dea3101e | 1146 | mp = (struct lpfc_dmabuf *) (pmb->context1); |
7054a606 | 1147 | |
dea3101e | 1148 | if (mp) { |
1149 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
1150 | kfree(mp); | |
1151 | } | |
7054a606 JS |
1152 | |
1153 | /* | |
1154 | * If a REG_LOGIN succeeded after node is destroyed or node | |
1155 | * is in re-discovery driver need to cleanup the RPI. | |
1156 | */ | |
2e0fef85 JS |
1157 | if (!(phba->pport->load_flag & FC_UNLOADING) && |
1158 | pmb->mb.mbxCommand == MBX_REG_LOGIN64 && | |
1159 | !pmb->mb.mbxStatus) { | |
7054a606 JS |
1160 | |
1161 | rpi = pmb->mb.un.varWords[0]; | |
92d7f7b0 JS |
1162 | lpfc_unreg_login(phba, pmb->mb.un.varRegLogin.vpi, rpi, pmb); |
1163 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
7054a606 JS |
1164 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
1165 | if (rc != MBX_NOT_FINISHED) | |
1166 | return; | |
1167 | } | |
1168 | ||
2e0fef85 | 1169 | mempool_free(pmb, phba->mbox_mem_pool); |
dea3101e | 1170 | return; |
1171 | } | |
1172 | ||
e59058c4 | 1173 | /** |
3621a710 | 1174 | * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware |
e59058c4 JS |
1175 | * @phba: Pointer to HBA context object. |
1176 | * | |
1177 | * This function is called with no lock held. This function processes all | |
1178 | * the completed mailbox commands and gives it to upper layers. The interrupt | |
1179 | * service routine processes mailbox completion interrupt and adds completed | |
1180 | * mailbox commands to the mboxq_cmpl queue and signals the worker thread. | |
1181 | * Worker thread call lpfc_sli_handle_mb_event, which will return the | |
1182 | * completed mailbox commands in mboxq_cmpl queue to the upper layers. This | |
1183 | * function returns the mailbox commands to the upper layer by calling the | |
1184 | * completion handler function of each mailbox. | |
1185 | **/ | |
dea3101e | 1186 | int |
2e0fef85 | 1187 | lpfc_sli_handle_mb_event(struct lpfc_hba *phba) |
dea3101e | 1188 | { |
92d7f7b0 | 1189 | MAILBOX_t *pmbox; |
dea3101e | 1190 | LPFC_MBOXQ_t *pmb; |
92d7f7b0 JS |
1191 | int rc; |
1192 | LIST_HEAD(cmplq); | |
dea3101e | 1193 | |
1194 | phba->sli.slistat.mbox_event++; | |
1195 | ||
92d7f7b0 JS |
1196 | /* Get all completed mailboxe buffers into the cmplq */ |
1197 | spin_lock_irq(&phba->hbalock); | |
1198 | list_splice_init(&phba->sli.mboxq_cmpl, &cmplq); | |
1199 | spin_unlock_irq(&phba->hbalock); | |
dea3101e | 1200 | |
92d7f7b0 JS |
1201 | /* Get a Mailbox buffer to setup mailbox commands for callback */ |
1202 | do { | |
1203 | list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list); | |
1204 | if (pmb == NULL) | |
1205 | break; | |
2e0fef85 | 1206 | |
92d7f7b0 | 1207 | pmbox = &pmb->mb; |
dea3101e | 1208 | |
858c9f6c JS |
1209 | if (pmbox->mbxCommand != MBX_HEARTBEAT) { |
1210 | if (pmb->vport) { | |
1211 | lpfc_debugfs_disc_trc(pmb->vport, | |
1212 | LPFC_DISC_TRC_MBOX_VPORT, | |
1213 | "MBOX cmpl vport: cmd:x%x mb:x%x x%x", | |
1214 | (uint32_t)pmbox->mbxCommand, | |
1215 | pmbox->un.varWords[0], | |
1216 | pmbox->un.varWords[1]); | |
1217 | } | |
1218 | else { | |
1219 | lpfc_debugfs_disc_trc(phba->pport, | |
1220 | LPFC_DISC_TRC_MBOX, | |
1221 | "MBOX cmpl: cmd:x%x mb:x%x x%x", | |
1222 | (uint32_t)pmbox->mbxCommand, | |
1223 | pmbox->un.varWords[0], | |
1224 | pmbox->un.varWords[1]); | |
1225 | } | |
1226 | } | |
1227 | ||
dea3101e | 1228 | /* |
1229 | * It is a fatal error if unknown mbox command completion. | |
1230 | */ | |
1231 | if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) == | |
1232 | MBX_SHUTDOWN) { | |
dea3101e | 1233 | /* Unknow mailbox command compl */ |
92d7f7b0 | 1234 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
e8b62011 | 1235 | "(%d):0323 Unknown Mailbox command " |
92d7f7b0 | 1236 | "%x Cmpl\n", |
92d7f7b0 JS |
1237 | pmb->vport ? pmb->vport->vpi : 0, |
1238 | pmbox->mbxCommand); | |
2e0fef85 | 1239 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 1240 | phba->work_hs = HS_FFER3; |
1241 | lpfc_handle_eratt(phba); | |
92d7f7b0 | 1242 | continue; |
dea3101e | 1243 | } |
1244 | ||
dea3101e | 1245 | if (pmbox->mbxStatus) { |
1246 | phba->sli.slistat.mbox_stat_err++; | |
1247 | if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) { | |
1248 | /* Mbox cmd cmpl error - RETRYing */ | |
92d7f7b0 JS |
1249 | lpfc_printf_log(phba, KERN_INFO, |
1250 | LOG_MBOX | LOG_SLI, | |
e8b62011 | 1251 | "(%d):0305 Mbox cmd cmpl " |
92d7f7b0 JS |
1252 | "error - RETRYing Data: x%x " |
1253 | "x%x x%x x%x\n", | |
92d7f7b0 JS |
1254 | pmb->vport ? pmb->vport->vpi :0, |
1255 | pmbox->mbxCommand, | |
1256 | pmbox->mbxStatus, | |
1257 | pmbox->un.varWords[0], | |
1258 | pmb->vport->port_state); | |
dea3101e | 1259 | pmbox->mbxStatus = 0; |
1260 | pmbox->mbxOwner = OWN_HOST; | |
2e0fef85 | 1261 | spin_lock_irq(&phba->hbalock); |
dea3101e | 1262 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 1263 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 1264 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
1265 | if (rc == MBX_SUCCESS) | |
92d7f7b0 | 1266 | continue; |
dea3101e | 1267 | } |
1268 | } | |
1269 | ||
1270 | /* Mailbox cmd <cmd> Cmpl <cmpl> */ | |
92d7f7b0 | 1271 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
e8b62011 | 1272 | "(%d):0307 Mailbox cmd x%x Cmpl x%p " |
dea3101e | 1273 | "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n", |
92d7f7b0 | 1274 | pmb->vport ? pmb->vport->vpi : 0, |
dea3101e | 1275 | pmbox->mbxCommand, |
1276 | pmb->mbox_cmpl, | |
1277 | *((uint32_t *) pmbox), | |
1278 | pmbox->un.varWords[0], | |
1279 | pmbox->un.varWords[1], | |
1280 | pmbox->un.varWords[2], | |
1281 | pmbox->un.varWords[3], | |
1282 | pmbox->un.varWords[4], | |
1283 | pmbox->un.varWords[5], | |
1284 | pmbox->un.varWords[6], | |
1285 | pmbox->un.varWords[7]); | |
1286 | ||
92d7f7b0 | 1287 | if (pmb->mbox_cmpl) |
dea3101e | 1288 | pmb->mbox_cmpl(phba,pmb); |
92d7f7b0 JS |
1289 | } while (1); |
1290 | return 0; | |
1291 | } | |
dea3101e | 1292 | |
e59058c4 | 1293 | /** |
3621a710 | 1294 | * lpfc_sli_get_buff - Get the buffer associated with the buffer tag |
e59058c4 JS |
1295 | * @phba: Pointer to HBA context object. |
1296 | * @pring: Pointer to driver SLI ring object. | |
1297 | * @tag: buffer tag. | |
1298 | * | |
1299 | * This function is called with no lock held. When QUE_BUFTAG_BIT bit | |
1300 | * is set in the tag the buffer is posted for a particular exchange, | |
1301 | * the function will return the buffer without replacing the buffer. | |
1302 | * If the buffer is for unsolicited ELS or CT traffic, this function | |
1303 | * returns the buffer and also posts another buffer to the firmware. | |
1304 | **/ | |
76bb24ef JS |
1305 | static struct lpfc_dmabuf * |
1306 | lpfc_sli_get_buff(struct lpfc_hba *phba, | |
9f1e1b50 JS |
1307 | struct lpfc_sli_ring *pring, |
1308 | uint32_t tag) | |
76bb24ef | 1309 | { |
9f1e1b50 JS |
1310 | struct hbq_dmabuf *hbq_entry; |
1311 | ||
76bb24ef JS |
1312 | if (tag & QUE_BUFTAG_BIT) |
1313 | return lpfc_sli_ring_taggedbuf_get(phba, pring, tag); | |
9f1e1b50 JS |
1314 | hbq_entry = lpfc_sli_hbqbuf_find(phba, tag); |
1315 | if (!hbq_entry) | |
1316 | return NULL; | |
1317 | return &hbq_entry->dbuf; | |
76bb24ef | 1318 | } |
57127f15 | 1319 | |
e59058c4 JS |
1320 | |
1321 | /** | |
3621a710 | 1322 | * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler |
e59058c4 JS |
1323 | * @phba: Pointer to HBA context object. |
1324 | * @pring: Pointer to driver SLI ring object. | |
1325 | * @saveq: Pointer to the unsolicited iocb. | |
1326 | * | |
1327 | * This function is called with no lock held by the ring event handler | |
1328 | * when there is an unsolicited iocb posted to the response ring by the | |
1329 | * firmware. This function gets the buffer associated with the iocbs | |
1330 | * and calls the event handler for the ring. This function handles both | |
1331 | * qring buffers and hbq buffers. | |
1332 | * When the function returns 1 the caller can free the iocb object otherwise | |
1333 | * upper layer functions will free the iocb objects. | |
1334 | **/ | |
dea3101e | 1335 | static int |
1336 | lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
1337 | struct lpfc_iocbq *saveq) | |
1338 | { | |
1339 | IOCB_t * irsp; | |
1340 | WORD5 * w5p; | |
1341 | uint32_t Rctl, Type; | |
1342 | uint32_t match, i; | |
76bb24ef | 1343 | struct lpfc_iocbq *iocbq; |
3163f725 | 1344 | struct lpfc_dmabuf *dmzbuf; |
dea3101e | 1345 | |
1346 | match = 0; | |
1347 | irsp = &(saveq->iocb); | |
57127f15 JS |
1348 | |
1349 | if (irsp->ulpCommand == CMD_ASYNC_STATUS) { | |
1350 | if (pring->lpfc_sli_rcv_async_status) | |
1351 | pring->lpfc_sli_rcv_async_status(phba, pring, saveq); | |
1352 | else | |
1353 | lpfc_printf_log(phba, | |
1354 | KERN_WARNING, | |
1355 | LOG_SLI, | |
1356 | "0316 Ring %d handler: unexpected " | |
1357 | "ASYNC_STATUS iocb received evt_code " | |
1358 | "0x%x\n", | |
1359 | pring->ringno, | |
1360 | irsp->un.asyncstat.evt_code); | |
1361 | return 1; | |
1362 | } | |
1363 | ||
3163f725 JS |
1364 | if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) && |
1365 | (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) { | |
1366 | if (irsp->ulpBdeCount > 0) { | |
1367 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
1368 | irsp->un.ulpWord[3]); | |
1369 | lpfc_in_buf_free(phba, dmzbuf); | |
1370 | } | |
1371 | ||
1372 | if (irsp->ulpBdeCount > 1) { | |
1373 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
1374 | irsp->unsli3.sli3Words[3]); | |
1375 | lpfc_in_buf_free(phba, dmzbuf); | |
1376 | } | |
1377 | ||
1378 | if (irsp->ulpBdeCount > 2) { | |
1379 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
1380 | irsp->unsli3.sli3Words[7]); | |
1381 | lpfc_in_buf_free(phba, dmzbuf); | |
1382 | } | |
1383 | ||
1384 | return 1; | |
1385 | } | |
1386 | ||
92d7f7b0 | 1387 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
76bb24ef JS |
1388 | if (irsp->ulpBdeCount != 0) { |
1389 | saveq->context2 = lpfc_sli_get_buff(phba, pring, | |
1390 | irsp->un.ulpWord[3]); | |
1391 | if (!saveq->context2) | |
1392 | lpfc_printf_log(phba, | |
1393 | KERN_ERR, | |
1394 | LOG_SLI, | |
1395 | "0341 Ring %d Cannot find buffer for " | |
1396 | "an unsolicited iocb. tag 0x%x\n", | |
1397 | pring->ringno, | |
1398 | irsp->un.ulpWord[3]); | |
76bb24ef JS |
1399 | } |
1400 | if (irsp->ulpBdeCount == 2) { | |
1401 | saveq->context3 = lpfc_sli_get_buff(phba, pring, | |
1402 | irsp->unsli3.sli3Words[7]); | |
1403 | if (!saveq->context3) | |
1404 | lpfc_printf_log(phba, | |
1405 | KERN_ERR, | |
1406 | LOG_SLI, | |
1407 | "0342 Ring %d Cannot find buffer for an" | |
1408 | " unsolicited iocb. tag 0x%x\n", | |
1409 | pring->ringno, | |
1410 | irsp->unsli3.sli3Words[7]); | |
1411 | } | |
1412 | list_for_each_entry(iocbq, &saveq->list, list) { | |
76bb24ef | 1413 | irsp = &(iocbq->iocb); |
76bb24ef JS |
1414 | if (irsp->ulpBdeCount != 0) { |
1415 | iocbq->context2 = lpfc_sli_get_buff(phba, pring, | |
1416 | irsp->un.ulpWord[3]); | |
9c2face6 | 1417 | if (!iocbq->context2) |
76bb24ef JS |
1418 | lpfc_printf_log(phba, |
1419 | KERN_ERR, | |
1420 | LOG_SLI, | |
1421 | "0343 Ring %d Cannot find " | |
1422 | "buffer for an unsolicited iocb" | |
1423 | ". tag 0x%x\n", pring->ringno, | |
92d7f7b0 | 1424 | irsp->un.ulpWord[3]); |
76bb24ef JS |
1425 | } |
1426 | if (irsp->ulpBdeCount == 2) { | |
1427 | iocbq->context3 = lpfc_sli_get_buff(phba, pring, | |
51ef4c26 | 1428 | irsp->unsli3.sli3Words[7]); |
9c2face6 | 1429 | if (!iocbq->context3) |
76bb24ef JS |
1430 | lpfc_printf_log(phba, |
1431 | KERN_ERR, | |
1432 | LOG_SLI, | |
1433 | "0344 Ring %d Cannot find " | |
1434 | "buffer for an unsolicited " | |
1435 | "iocb. tag 0x%x\n", | |
1436 | pring->ringno, | |
1437 | irsp->unsli3.sli3Words[7]); | |
1438 | } | |
1439 | } | |
92d7f7b0 | 1440 | } |
9c2face6 JS |
1441 | if (irsp->ulpBdeCount != 0 && |
1442 | (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX || | |
1443 | irsp->ulpStatus == IOSTAT_INTERMED_RSP)) { | |
1444 | int found = 0; | |
1445 | ||
1446 | /* search continue save q for same XRI */ | |
1447 | list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) { | |
1448 | if (iocbq->iocb.ulpContext == saveq->iocb.ulpContext) { | |
1449 | list_add_tail(&saveq->list, &iocbq->list); | |
1450 | found = 1; | |
1451 | break; | |
1452 | } | |
1453 | } | |
1454 | if (!found) | |
1455 | list_add_tail(&saveq->clist, | |
1456 | &pring->iocb_continue_saveq); | |
1457 | if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) { | |
1458 | list_del_init(&iocbq->clist); | |
1459 | saveq = iocbq; | |
1460 | irsp = &(saveq->iocb); | |
1461 | } else | |
1462 | return 0; | |
1463 | } | |
1464 | if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) || | |
1465 | (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) || | |
1466 | (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) { | |
1467 | Rctl = FC_ELS_REQ; | |
1468 | Type = FC_ELS_DATA; | |
1469 | } else { | |
1470 | w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]); | |
1471 | Rctl = w5p->hcsw.Rctl; | |
1472 | Type = w5p->hcsw.Type; | |
1473 | ||
1474 | /* Firmware Workaround */ | |
1475 | if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) && | |
1476 | (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX || | |
1477 | irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) { | |
1478 | Rctl = FC_ELS_REQ; | |
1479 | Type = FC_ELS_DATA; | |
1480 | w5p->hcsw.Rctl = Rctl; | |
1481 | w5p->hcsw.Type = Type; | |
1482 | } | |
1483 | } | |
92d7f7b0 | 1484 | |
dea3101e | 1485 | /* unSolicited Responses */ |
1486 | if (pring->prt[0].profile) { | |
cf5bf97e JW |
1487 | if (pring->prt[0].lpfc_sli_rcv_unsol_event) |
1488 | (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring, | |
1489 | saveq); | |
dea3101e | 1490 | match = 1; |
1491 | } else { | |
1492 | /* We must search, based on rctl / type | |
1493 | for the right routine */ | |
9c2face6 JS |
1494 | for (i = 0; i < pring->num_mask; i++) { |
1495 | if ((pring->prt[i].rctl == Rctl) | |
1496 | && (pring->prt[i].type == Type)) { | |
cf5bf97e JW |
1497 | if (pring->prt[i].lpfc_sli_rcv_unsol_event) |
1498 | (pring->prt[i].lpfc_sli_rcv_unsol_event) | |
1499 | (phba, pring, saveq); | |
dea3101e | 1500 | match = 1; |
1501 | break; | |
1502 | } | |
1503 | } | |
1504 | } | |
1505 | if (match == 0) { | |
1506 | /* Unexpected Rctl / Type received */ | |
1507 | /* Ring <ringno> handler: unexpected | |
1508 | Rctl <Rctl> Type <Type> received */ | |
92d7f7b0 | 1509 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
e8b62011 | 1510 | "0313 Ring %d handler: unexpected Rctl x%x " |
92d7f7b0 | 1511 | "Type x%x received\n", |
e8b62011 | 1512 | pring->ringno, Rctl, Type); |
dea3101e | 1513 | } |
92d7f7b0 | 1514 | return 1; |
dea3101e | 1515 | } |
1516 | ||
e59058c4 | 1517 | /** |
3621a710 | 1518 | * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb |
e59058c4 JS |
1519 | * @phba: Pointer to HBA context object. |
1520 | * @pring: Pointer to driver SLI ring object. | |
1521 | * @prspiocb: Pointer to response iocb object. | |
1522 | * | |
1523 | * This function looks up the iocb_lookup table to get the command iocb | |
1524 | * corresponding to the given response iocb using the iotag of the | |
1525 | * response iocb. This function is called with the hbalock held. | |
1526 | * This function returns the command iocb object if it finds the command | |
1527 | * iocb else returns NULL. | |
1528 | **/ | |
dea3101e | 1529 | static struct lpfc_iocbq * |
2e0fef85 JS |
1530 | lpfc_sli_iocbq_lookup(struct lpfc_hba *phba, |
1531 | struct lpfc_sli_ring *pring, | |
1532 | struct lpfc_iocbq *prspiocb) | |
dea3101e | 1533 | { |
dea3101e | 1534 | struct lpfc_iocbq *cmd_iocb = NULL; |
1535 | uint16_t iotag; | |
1536 | ||
604a3e30 JB |
1537 | iotag = prspiocb->iocb.ulpIoTag; |
1538 | ||
1539 | if (iotag != 0 && iotag <= phba->sli.last_iotag) { | |
1540 | cmd_iocb = phba->sli.iocbq_lookup[iotag]; | |
92d7f7b0 | 1541 | list_del_init(&cmd_iocb->list); |
604a3e30 JB |
1542 | pring->txcmplq_cnt--; |
1543 | return cmd_iocb; | |
dea3101e | 1544 | } |
1545 | ||
dea3101e | 1546 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 | 1547 | "0317 iotag x%x is out off " |
604a3e30 | 1548 | "range: max iotag x%x wd0 x%x\n", |
e8b62011 | 1549 | iotag, phba->sli.last_iotag, |
604a3e30 | 1550 | *(((uint32_t *) &prspiocb->iocb) + 7)); |
dea3101e | 1551 | return NULL; |
1552 | } | |
1553 | ||
e59058c4 | 1554 | /** |
3621a710 | 1555 | * lpfc_sli_process_sol_iocb - process solicited iocb completion |
e59058c4 JS |
1556 | * @phba: Pointer to HBA context object. |
1557 | * @pring: Pointer to driver SLI ring object. | |
1558 | * @saveq: Pointer to the response iocb to be processed. | |
1559 | * | |
1560 | * This function is called by the ring event handler for non-fcp | |
1561 | * rings when there is a new response iocb in the response ring. | |
1562 | * The caller is not required to hold any locks. This function | |
1563 | * gets the command iocb associated with the response iocb and | |
1564 | * calls the completion handler for the command iocb. If there | |
1565 | * is no completion handler, the function will free the resources | |
1566 | * associated with command iocb. If the response iocb is for | |
1567 | * an already aborted command iocb, the status of the completion | |
1568 | * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED. | |
1569 | * This function always returns 1. | |
1570 | **/ | |
dea3101e | 1571 | static int |
2e0fef85 | 1572 | lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
dea3101e | 1573 | struct lpfc_iocbq *saveq) |
1574 | { | |
2e0fef85 | 1575 | struct lpfc_iocbq *cmdiocbp; |
dea3101e | 1576 | int rc = 1; |
1577 | unsigned long iflag; | |
1578 | ||
1579 | /* Based on the iotag field, get the cmd IOCB from the txcmplq */ | |
2e0fef85 | 1580 | spin_lock_irqsave(&phba->hbalock, iflag); |
604a3e30 | 1581 | cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq); |
2e0fef85 JS |
1582 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
1583 | ||
dea3101e | 1584 | if (cmdiocbp) { |
1585 | if (cmdiocbp->iocb_cmpl) { | |
ea2151b4 JS |
1586 | /* |
1587 | * If an ELS command failed send an event to mgmt | |
1588 | * application. | |
1589 | */ | |
1590 | if (saveq->iocb.ulpStatus && | |
1591 | (pring->ringno == LPFC_ELS_RING) && | |
1592 | (cmdiocbp->iocb.ulpCommand == | |
1593 | CMD_ELS_REQUEST64_CR)) | |
1594 | lpfc_send_els_failure_event(phba, | |
1595 | cmdiocbp, saveq); | |
1596 | ||
dea3101e | 1597 | /* |
1598 | * Post all ELS completions to the worker thread. | |
1599 | * All other are passed to the completion callback. | |
1600 | */ | |
1601 | if (pring->ringno == LPFC_ELS_RING) { | |
07951076 JS |
1602 | if (cmdiocbp->iocb_flag & LPFC_DRIVER_ABORTED) { |
1603 | cmdiocbp->iocb_flag &= | |
1604 | ~LPFC_DRIVER_ABORTED; | |
1605 | saveq->iocb.ulpStatus = | |
1606 | IOSTAT_LOCAL_REJECT; | |
1607 | saveq->iocb.un.ulpWord[4] = | |
1608 | IOERR_SLI_ABORTED; | |
0ff10d46 JS |
1609 | |
1610 | /* Firmware could still be in progress | |
1611 | * of DMAing payload, so don't free data | |
1612 | * buffer till after a hbeat. | |
1613 | */ | |
1614 | saveq->iocb_flag |= LPFC_DELAY_MEM_FREE; | |
07951076 | 1615 | } |
dea3101e | 1616 | } |
2e0fef85 | 1617 | (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq); |
604a3e30 JB |
1618 | } else |
1619 | lpfc_sli_release_iocbq(phba, cmdiocbp); | |
dea3101e | 1620 | } else { |
1621 | /* | |
1622 | * Unknown initiating command based on the response iotag. | |
1623 | * This could be the case on the ELS ring because of | |
1624 | * lpfc_els_abort(). | |
1625 | */ | |
1626 | if (pring->ringno != LPFC_ELS_RING) { | |
1627 | /* | |
1628 | * Ring <ringno> handler: unexpected completion IoTag | |
1629 | * <IoTag> | |
1630 | */ | |
a257bf90 | 1631 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
e8b62011 JS |
1632 | "0322 Ring %d handler: " |
1633 | "unexpected completion IoTag x%x " | |
1634 | "Data: x%x x%x x%x x%x\n", | |
1635 | pring->ringno, | |
1636 | saveq->iocb.ulpIoTag, | |
1637 | saveq->iocb.ulpStatus, | |
1638 | saveq->iocb.un.ulpWord[4], | |
1639 | saveq->iocb.ulpCommand, | |
1640 | saveq->iocb.ulpContext); | |
dea3101e | 1641 | } |
1642 | } | |
68876920 | 1643 | |
dea3101e | 1644 | return rc; |
1645 | } | |
1646 | ||
e59058c4 | 1647 | /** |
3621a710 | 1648 | * lpfc_sli_rsp_pointers_error - Response ring pointer error handler |
e59058c4 JS |
1649 | * @phba: Pointer to HBA context object. |
1650 | * @pring: Pointer to driver SLI ring object. | |
1651 | * | |
1652 | * This function is called from the iocb ring event handlers when | |
1653 | * put pointer is ahead of the get pointer for a ring. This function signal | |
1654 | * an error attention condition to the worker thread and the worker | |
1655 | * thread will transition the HBA to offline state. | |
1656 | **/ | |
2e0fef85 JS |
1657 | static void |
1658 | lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
875fbdfe | 1659 | { |
34b02dcd | 1660 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
875fbdfe | 1661 | /* |
025dfdaf | 1662 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger than |
875fbdfe JSEC |
1663 | * rsp ring <portRspMax> |
1664 | */ | |
1665 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 1666 | "0312 Ring %d handler: portRspPut %d " |
025dfdaf | 1667 | "is bigger than rsp ring %d\n", |
e8b62011 | 1668 | pring->ringno, le32_to_cpu(pgp->rspPutInx), |
875fbdfe JSEC |
1669 | pring->numRiocb); |
1670 | ||
2e0fef85 | 1671 | phba->link_state = LPFC_HBA_ERROR; |
875fbdfe JSEC |
1672 | |
1673 | /* | |
1674 | * All error attention handlers are posted to | |
1675 | * worker thread | |
1676 | */ | |
1677 | phba->work_ha |= HA_ERATT; | |
1678 | phba->work_hs = HS_FFER3; | |
92d7f7b0 | 1679 | |
5e9d9b82 | 1680 | lpfc_worker_wake_up(phba); |
875fbdfe JSEC |
1681 | |
1682 | return; | |
1683 | } | |
1684 | ||
9399627f | 1685 | /** |
3621a710 | 1686 | * lpfc_poll_eratt - Error attention polling timer timeout handler |
9399627f JS |
1687 | * @ptr: Pointer to address of HBA context object. |
1688 | * | |
1689 | * This function is invoked by the Error Attention polling timer when the | |
1690 | * timer times out. It will check the SLI Error Attention register for | |
1691 | * possible attention events. If so, it will post an Error Attention event | |
1692 | * and wake up worker thread to process it. Otherwise, it will set up the | |
1693 | * Error Attention polling timer for the next poll. | |
1694 | **/ | |
1695 | void lpfc_poll_eratt(unsigned long ptr) | |
1696 | { | |
1697 | struct lpfc_hba *phba; | |
1698 | uint32_t eratt = 0; | |
1699 | ||
1700 | phba = (struct lpfc_hba *)ptr; | |
1701 | ||
1702 | /* Check chip HA register for error event */ | |
1703 | eratt = lpfc_sli_check_eratt(phba); | |
1704 | ||
1705 | if (eratt) | |
1706 | /* Tell the worker thread there is work to do */ | |
1707 | lpfc_worker_wake_up(phba); | |
1708 | else | |
1709 | /* Restart the timer for next eratt poll */ | |
1710 | mod_timer(&phba->eratt_poll, jiffies + | |
1711 | HZ * LPFC_ERATT_POLL_INTERVAL); | |
1712 | return; | |
1713 | } | |
1714 | ||
e59058c4 | 1715 | /** |
3621a710 | 1716 | * lpfc_sli_poll_fcp_ring - Handle FCP ring completion in polling mode |
e59058c4 JS |
1717 | * @phba: Pointer to HBA context object. |
1718 | * | |
1719 | * This function is called from lpfc_queuecommand, lpfc_poll_timeout, | |
1720 | * lpfc_abort_handler and lpfc_slave_configure when FCP_RING_POLLING | |
1721 | * is enabled. | |
1722 | * | |
1723 | * The caller does not hold any lock. | |
1724 | * The function processes each response iocb in the response ring until it | |
1725 | * finds an iocb with LE bit set and chains all the iocbs upto the iocb with | |
1726 | * LE bit set. The function will call the completion handler of the command iocb | |
1727 | * if the response iocb indicates a completion for a command iocb or it is | |
1728 | * an abort completion. | |
1729 | **/ | |
2e0fef85 | 1730 | void lpfc_sli_poll_fcp_ring(struct lpfc_hba *phba) |
875fbdfe | 1731 | { |
2e0fef85 JS |
1732 | struct lpfc_sli *psli = &phba->sli; |
1733 | struct lpfc_sli_ring *pring = &psli->ring[LPFC_FCP_RING]; | |
875fbdfe JSEC |
1734 | IOCB_t *irsp = NULL; |
1735 | IOCB_t *entry = NULL; | |
1736 | struct lpfc_iocbq *cmdiocbq = NULL; | |
1737 | struct lpfc_iocbq rspiocbq; | |
34b02dcd | 1738 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
875fbdfe JSEC |
1739 | uint32_t status; |
1740 | uint32_t portRspPut, portRspMax; | |
1741 | int type; | |
1742 | uint32_t rsp_cmpl = 0; | |
875fbdfe | 1743 | uint32_t ha_copy; |
2e0fef85 | 1744 | unsigned long iflags; |
875fbdfe JSEC |
1745 | |
1746 | pring->stats.iocb_event++; | |
1747 | ||
875fbdfe JSEC |
1748 | /* |
1749 | * The next available response entry should never exceed the maximum | |
1750 | * entries. If it does, treat it as an adapter hardware error. | |
1751 | */ | |
1752 | portRspMax = pring->numRiocb; | |
1753 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1754 | if (unlikely(portRspPut >= portRspMax)) { | |
1755 | lpfc_sli_rsp_pointers_error(phba, pring); | |
1756 | return; | |
1757 | } | |
1758 | ||
1759 | rmb(); | |
1760 | while (pring->rspidx != portRspPut) { | |
ed957684 | 1761 | entry = lpfc_resp_iocb(phba, pring); |
875fbdfe JSEC |
1762 | if (++pring->rspidx >= portRspMax) |
1763 | pring->rspidx = 0; | |
1764 | ||
1765 | lpfc_sli_pcimem_bcopy((uint32_t *) entry, | |
1766 | (uint32_t *) &rspiocbq.iocb, | |
92d7f7b0 | 1767 | phba->iocb_rsp_size); |
875fbdfe JSEC |
1768 | irsp = &rspiocbq.iocb; |
1769 | type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); | |
1770 | pring->stats.iocb_rsp++; | |
1771 | rsp_cmpl++; | |
1772 | ||
1773 | if (unlikely(irsp->ulpStatus)) { | |
1774 | /* Rsp ring <ringno> error: IOCB */ | |
1775 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
e8b62011 | 1776 | "0326 Rsp Ring %d error: IOCB Data: " |
875fbdfe | 1777 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", |
e8b62011 | 1778 | pring->ringno, |
875fbdfe JSEC |
1779 | irsp->un.ulpWord[0], |
1780 | irsp->un.ulpWord[1], | |
1781 | irsp->un.ulpWord[2], | |
1782 | irsp->un.ulpWord[3], | |
1783 | irsp->un.ulpWord[4], | |
1784 | irsp->un.ulpWord[5], | |
d7c255b2 JS |
1785 | *(uint32_t *)&irsp->un1, |
1786 | *((uint32_t *)&irsp->un1 + 1)); | |
875fbdfe JSEC |
1787 | } |
1788 | ||
1789 | switch (type) { | |
1790 | case LPFC_ABORT_IOCB: | |
1791 | case LPFC_SOL_IOCB: | |
1792 | /* | |
1793 | * Idle exchange closed via ABTS from port. No iocb | |
1794 | * resources need to be recovered. | |
1795 | */ | |
1796 | if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { | |
dca9479b | 1797 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
e8b62011 JS |
1798 | "0314 IOCB cmd 0x%x " |
1799 | "processed. Skipping " | |
1800 | "completion", | |
dca9479b | 1801 | irsp->ulpCommand); |
875fbdfe JSEC |
1802 | break; |
1803 | } | |
1804 | ||
2e0fef85 | 1805 | spin_lock_irqsave(&phba->hbalock, iflags); |
875fbdfe JSEC |
1806 | cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, |
1807 | &rspiocbq); | |
2e0fef85 | 1808 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
875fbdfe JSEC |
1809 | if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { |
1810 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, | |
1811 | &rspiocbq); | |
1812 | } | |
1813 | break; | |
1814 | default: | |
1815 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
1816 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
1817 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
1818 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
1819 | MAX_MSG_DATA); | |
898eb71c JP |
1820 | dev_warn(&((phba->pcidev)->dev), |
1821 | "lpfc%d: %s\n", | |
875fbdfe JSEC |
1822 | phba->brd_no, adaptermsg); |
1823 | } else { | |
1824 | /* Unknown IOCB command */ | |
1825 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 1826 | "0321 Unknown IOCB command " |
875fbdfe | 1827 | "Data: x%x, x%x x%x x%x x%x\n", |
e8b62011 | 1828 | type, irsp->ulpCommand, |
875fbdfe JSEC |
1829 | irsp->ulpStatus, |
1830 | irsp->ulpIoTag, | |
1831 | irsp->ulpContext); | |
1832 | } | |
1833 | break; | |
1834 | } | |
1835 | ||
1836 | /* | |
1837 | * The response IOCB has been processed. Update the ring | |
1838 | * pointer in SLIM. If the port response put pointer has not | |
1839 | * been updated, sync the pgp->rspPutInx and fetch the new port | |
1840 | * response put pointer. | |
1841 | */ | |
ed957684 | 1842 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); |
875fbdfe JSEC |
1843 | |
1844 | if (pring->rspidx == portRspPut) | |
1845 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1846 | } | |
1847 | ||
1848 | ha_copy = readl(phba->HAregaddr); | |
1849 | ha_copy >>= (LPFC_FCP_RING * 4); | |
1850 | ||
1851 | if ((rsp_cmpl > 0) && (ha_copy & HA_R0RE_REQ)) { | |
2e0fef85 | 1852 | spin_lock_irqsave(&phba->hbalock, iflags); |
875fbdfe JSEC |
1853 | pring->stats.iocb_rsp_full++; |
1854 | status = ((CA_R0ATT | CA_R0RE_RSP) << (LPFC_FCP_RING * 4)); | |
1855 | writel(status, phba->CAregaddr); | |
1856 | readl(phba->CAregaddr); | |
2e0fef85 | 1857 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
875fbdfe JSEC |
1858 | } |
1859 | if ((ha_copy & HA_R0CE_RSP) && | |
1860 | (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2e0fef85 | 1861 | spin_lock_irqsave(&phba->hbalock, iflags); |
875fbdfe JSEC |
1862 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; |
1863 | pring->stats.iocb_cmd_empty++; | |
1864 | ||
1865 | /* Force update of the local copy of cmdGetInx */ | |
1866 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
1867 | lpfc_sli_resume_iocb(phba, pring); | |
1868 | ||
1869 | if ((pring->lpfc_sli_cmd_available)) | |
1870 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
1871 | ||
2e0fef85 | 1872 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
875fbdfe JSEC |
1873 | } |
1874 | ||
1875 | return; | |
1876 | } | |
1877 | ||
e59058c4 | 1878 | /** |
3621a710 | 1879 | * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring |
e59058c4 JS |
1880 | * @phba: Pointer to HBA context object. |
1881 | * @pring: Pointer to driver SLI ring object. | |
1882 | * @mask: Host attention register mask for this ring. | |
1883 | * | |
1884 | * This function is called from the interrupt context when there is a ring | |
1885 | * event for the fcp ring. The caller does not hold any lock. | |
1886 | * The function processes each response iocb in the response ring until it | |
1887 | * finds an iocb with LE bit set and chains all the iocbs upto the iocb with | |
1888 | * LE bit set. The function will call the completion handler of the command iocb | |
1889 | * if the response iocb indicates a completion for a command iocb or it is | |
1890 | * an abort completion. The function will call lpfc_sli_process_unsol_iocb | |
1891 | * function if this is an unsolicited iocb. | |
dea3101e | 1892 | * This routine presumes LPFC_FCP_RING handling and doesn't bother |
e59058c4 JS |
1893 | * to check it explicitly. This function always returns 1. |
1894 | **/ | |
dea3101e | 1895 | static int |
2e0fef85 JS |
1896 | lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba, |
1897 | struct lpfc_sli_ring *pring, uint32_t mask) | |
dea3101e | 1898 | { |
34b02dcd | 1899 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
dea3101e | 1900 | IOCB_t *irsp = NULL; |
87f6eaff | 1901 | IOCB_t *entry = NULL; |
dea3101e | 1902 | struct lpfc_iocbq *cmdiocbq = NULL; |
1903 | struct lpfc_iocbq rspiocbq; | |
dea3101e | 1904 | uint32_t status; |
1905 | uint32_t portRspPut, portRspMax; | |
1906 | int rc = 1; | |
1907 | lpfc_iocb_type type; | |
1908 | unsigned long iflag; | |
1909 | uint32_t rsp_cmpl = 0; | |
dea3101e | 1910 | |
2e0fef85 | 1911 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e | 1912 | pring->stats.iocb_event++; |
1913 | ||
dea3101e | 1914 | /* |
1915 | * The next available response entry should never exceed the maximum | |
1916 | * entries. If it does, treat it as an adapter hardware error. | |
1917 | */ | |
1918 | portRspMax = pring->numRiocb; | |
1919 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
1920 | if (unlikely(portRspPut >= portRspMax)) { | |
875fbdfe | 1921 | lpfc_sli_rsp_pointers_error(phba, pring); |
2e0fef85 | 1922 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 1923 | return 1; |
1924 | } | |
1925 | ||
1926 | rmb(); | |
1927 | while (pring->rspidx != portRspPut) { | |
87f6eaff JSEC |
1928 | /* |
1929 | * Fetch an entry off the ring and copy it into a local data | |
1930 | * structure. The copy involves a byte-swap since the | |
1931 | * network byte order and pci byte orders are different. | |
1932 | */ | |
ed957684 | 1933 | entry = lpfc_resp_iocb(phba, pring); |
858c9f6c | 1934 | phba->last_completion_time = jiffies; |
875fbdfe JSEC |
1935 | |
1936 | if (++pring->rspidx >= portRspMax) | |
1937 | pring->rspidx = 0; | |
1938 | ||
87f6eaff JSEC |
1939 | lpfc_sli_pcimem_bcopy((uint32_t *) entry, |
1940 | (uint32_t *) &rspiocbq.iocb, | |
ed957684 | 1941 | phba->iocb_rsp_size); |
a4bc3379 | 1942 | INIT_LIST_HEAD(&(rspiocbq.list)); |
87f6eaff JSEC |
1943 | irsp = &rspiocbq.iocb; |
1944 | ||
dea3101e | 1945 | type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); |
1946 | pring->stats.iocb_rsp++; | |
1947 | rsp_cmpl++; | |
1948 | ||
1949 | if (unlikely(irsp->ulpStatus)) { | |
92d7f7b0 JS |
1950 | /* |
1951 | * If resource errors reported from HBA, reduce | |
1952 | * queuedepths of the SCSI device. | |
1953 | */ | |
1954 | if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
1955 | (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) { | |
1956 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
eaf15d5b | 1957 | lpfc_rampdown_queue_depth(phba); |
92d7f7b0 JS |
1958 | spin_lock_irqsave(&phba->hbalock, iflag); |
1959 | } | |
1960 | ||
dea3101e | 1961 | /* Rsp ring <ringno> error: IOCB */ |
1962 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
e8b62011 | 1963 | "0336 Rsp Ring %d error: IOCB Data: " |
92d7f7b0 | 1964 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", |
e8b62011 | 1965 | pring->ringno, |
92d7f7b0 JS |
1966 | irsp->un.ulpWord[0], |
1967 | irsp->un.ulpWord[1], | |
1968 | irsp->un.ulpWord[2], | |
1969 | irsp->un.ulpWord[3], | |
1970 | irsp->un.ulpWord[4], | |
1971 | irsp->un.ulpWord[5], | |
d7c255b2 JS |
1972 | *(uint32_t *)&irsp->un1, |
1973 | *((uint32_t *)&irsp->un1 + 1)); | |
dea3101e | 1974 | } |
1975 | ||
1976 | switch (type) { | |
1977 | case LPFC_ABORT_IOCB: | |
1978 | case LPFC_SOL_IOCB: | |
1979 | /* | |
1980 | * Idle exchange closed via ABTS from port. No iocb | |
1981 | * resources need to be recovered. | |
1982 | */ | |
1983 | if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { | |
dca9479b | 1984 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
e8b62011 | 1985 | "0333 IOCB cmd 0x%x" |
dca9479b | 1986 | " processed. Skipping" |
92d7f7b0 | 1987 | " completion\n", |
dca9479b | 1988 | irsp->ulpCommand); |
dea3101e | 1989 | break; |
1990 | } | |
1991 | ||
604a3e30 JB |
1992 | cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, |
1993 | &rspiocbq); | |
dea3101e | 1994 | if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { |
b808608b JW |
1995 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { |
1996 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, | |
1997 | &rspiocbq); | |
1998 | } else { | |
2e0fef85 JS |
1999 | spin_unlock_irqrestore(&phba->hbalock, |
2000 | iflag); | |
b808608b JW |
2001 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, |
2002 | &rspiocbq); | |
2e0fef85 | 2003 | spin_lock_irqsave(&phba->hbalock, |
b808608b JW |
2004 | iflag); |
2005 | } | |
dea3101e | 2006 | } |
2007 | break; | |
a4bc3379 | 2008 | case LPFC_UNSOL_IOCB: |
2e0fef85 | 2009 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
a4bc3379 | 2010 | lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq); |
2e0fef85 | 2011 | spin_lock_irqsave(&phba->hbalock, iflag); |
a4bc3379 | 2012 | break; |
dea3101e | 2013 | default: |
2014 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
2015 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
2016 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
2017 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
2018 | MAX_MSG_DATA); | |
898eb71c JP |
2019 | dev_warn(&((phba->pcidev)->dev), |
2020 | "lpfc%d: %s\n", | |
dea3101e | 2021 | phba->brd_no, adaptermsg); |
2022 | } else { | |
2023 | /* Unknown IOCB command */ | |
2024 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 2025 | "0334 Unknown IOCB command " |
92d7f7b0 | 2026 | "Data: x%x, x%x x%x x%x x%x\n", |
e8b62011 | 2027 | type, irsp->ulpCommand, |
92d7f7b0 JS |
2028 | irsp->ulpStatus, |
2029 | irsp->ulpIoTag, | |
2030 | irsp->ulpContext); | |
dea3101e | 2031 | } |
2032 | break; | |
2033 | } | |
2034 | ||
2035 | /* | |
2036 | * The response IOCB has been processed. Update the ring | |
2037 | * pointer in SLIM. If the port response put pointer has not | |
2038 | * been updated, sync the pgp->rspPutInx and fetch the new port | |
2039 | * response put pointer. | |
2040 | */ | |
ed957684 | 2041 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); |
dea3101e | 2042 | |
2043 | if (pring->rspidx == portRspPut) | |
2044 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2045 | } | |
2046 | ||
2047 | if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) { | |
2048 | pring->stats.iocb_rsp_full++; | |
2049 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
2050 | writel(status, phba->CAregaddr); | |
2051 | readl(phba->CAregaddr); | |
2052 | } | |
2053 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2054 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
2055 | pring->stats.iocb_cmd_empty++; | |
2056 | ||
2057 | /* Force update of the local copy of cmdGetInx */ | |
2058 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
2059 | lpfc_sli_resume_iocb(phba, pring); | |
2060 | ||
2061 | if ((pring->lpfc_sli_cmd_available)) | |
2062 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
2063 | ||
2064 | } | |
2065 | ||
2e0fef85 | 2066 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 2067 | return rc; |
2068 | } | |
2069 | ||
e59058c4 | 2070 | /** |
3621a710 | 2071 | * lpfc_sli_handle_slow_ring_event - Handle ring events for non-FCP rings |
e59058c4 JS |
2072 | * @phba: Pointer to HBA context object. |
2073 | * @pring: Pointer to driver SLI ring object. | |
2074 | * @mask: Host attention register mask for this ring. | |
2075 | * | |
2076 | * This function is called from the worker thread when there is a ring | |
2077 | * event for non-fcp rings. The caller does not hold any lock . | |
2078 | * The function processes each response iocb in the response ring until it | |
2079 | * finds an iocb with LE bit set and chains all the iocbs upto the iocb with | |
2080 | * LE bit set. The function will call lpfc_sli_process_sol_iocb function if the | |
2081 | * response iocb indicates a completion of a command iocb. The function | |
2082 | * will call lpfc_sli_process_unsol_iocb function if this is an unsolicited | |
2083 | * iocb. The function frees the resources or calls the completion handler if | |
2084 | * this iocb is an abort completion. The function returns 0 when the allocated | |
2085 | * iocbs are not freed, otherwise returns 1. | |
2086 | **/ | |
dea3101e | 2087 | int |
2e0fef85 JS |
2088 | lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba, |
2089 | struct lpfc_sli_ring *pring, uint32_t mask) | |
dea3101e | 2090 | { |
34b02dcd | 2091 | struct lpfc_pgp *pgp; |
dea3101e | 2092 | IOCB_t *entry; |
2093 | IOCB_t *irsp = NULL; | |
2094 | struct lpfc_iocbq *rspiocbp = NULL; | |
2095 | struct lpfc_iocbq *next_iocb; | |
2096 | struct lpfc_iocbq *cmdiocbp; | |
2097 | struct lpfc_iocbq *saveq; | |
dea3101e | 2098 | uint8_t iocb_cmd_type; |
2099 | lpfc_iocb_type type; | |
2100 | uint32_t status, free_saveq; | |
2101 | uint32_t portRspPut, portRspMax; | |
2102 | int rc = 1; | |
2103 | unsigned long iflag; | |
dea3101e | 2104 | |
34b02dcd | 2105 | pgp = &phba->port_gp[pring->ringno]; |
2e0fef85 | 2106 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e | 2107 | pring->stats.iocb_event++; |
2108 | ||
dea3101e | 2109 | /* |
2110 | * The next available response entry should never exceed the maximum | |
2111 | * entries. If it does, treat it as an adapter hardware error. | |
2112 | */ | |
2113 | portRspMax = pring->numRiocb; | |
2114 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2115 | if (portRspPut >= portRspMax) { | |
2116 | /* | |
025dfdaf | 2117 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger than |
dea3101e | 2118 | * rsp ring <portRspMax> |
2119 | */ | |
ed957684 | 2120 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 | 2121 | "0303 Ring %d handler: portRspPut %d " |
025dfdaf | 2122 | "is bigger than rsp ring %d\n", |
e8b62011 | 2123 | pring->ringno, portRspPut, portRspMax); |
dea3101e | 2124 | |
2e0fef85 JS |
2125 | phba->link_state = LPFC_HBA_ERROR; |
2126 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
dea3101e | 2127 | |
2128 | phba->work_hs = HS_FFER3; | |
2129 | lpfc_handle_eratt(phba); | |
2130 | ||
2131 | return 1; | |
2132 | } | |
2133 | ||
2134 | rmb(); | |
dea3101e | 2135 | while (pring->rspidx != portRspPut) { |
2136 | /* | |
2137 | * Build a completion list and call the appropriate handler. | |
2138 | * The process is to get the next available response iocb, get | |
2139 | * a free iocb from the list, copy the response data into the | |
2140 | * free iocb, insert to the continuation list, and update the | |
2141 | * next response index to slim. This process makes response | |
2142 | * iocb's in the ring available to DMA as fast as possible but | |
2143 | * pays a penalty for a copy operation. Since the iocb is | |
2144 | * only 32 bytes, this penalty is considered small relative to | |
2145 | * the PCI reads for register values and a slim write. When | |
2146 | * the ulpLe field is set, the entire Command has been | |
2147 | * received. | |
2148 | */ | |
ed957684 JS |
2149 | entry = lpfc_resp_iocb(phba, pring); |
2150 | ||
858c9f6c | 2151 | phba->last_completion_time = jiffies; |
2e0fef85 | 2152 | rspiocbp = __lpfc_sli_get_iocbq(phba); |
dea3101e | 2153 | if (rspiocbp == NULL) { |
2154 | printk(KERN_ERR "%s: out of buffers! Failing " | |
cadbd4a5 | 2155 | "completion.\n", __func__); |
dea3101e | 2156 | break; |
2157 | } | |
2158 | ||
ed957684 JS |
2159 | lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb, |
2160 | phba->iocb_rsp_size); | |
dea3101e | 2161 | irsp = &rspiocbp->iocb; |
2162 | ||
2163 | if (++pring->rspidx >= portRspMax) | |
2164 | pring->rspidx = 0; | |
2165 | ||
a58cbd52 JS |
2166 | if (pring->ringno == LPFC_ELS_RING) { |
2167 | lpfc_debugfs_slow_ring_trc(phba, | |
2168 | "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x", | |
2169 | *(((uint32_t *) irsp) + 4), | |
2170 | *(((uint32_t *) irsp) + 6), | |
2171 | *(((uint32_t *) irsp) + 7)); | |
2172 | } | |
2173 | ||
ed957684 | 2174 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); |
dea3101e | 2175 | |
9c2face6 | 2176 | list_add_tail(&rspiocbp->list, &(pring->iocb_continueq)); |
dea3101e | 2177 | |
2178 | pring->iocb_continueq_cnt++; | |
2179 | if (irsp->ulpLe) { | |
2180 | /* | |
2181 | * By default, the driver expects to free all resources | |
2182 | * associated with this iocb completion. | |
2183 | */ | |
2184 | free_saveq = 1; | |
2185 | saveq = list_get_first(&pring->iocb_continueq, | |
2186 | struct lpfc_iocbq, list); | |
2187 | irsp = &(saveq->iocb); | |
2188 | list_del_init(&pring->iocb_continueq); | |
2189 | pring->iocb_continueq_cnt = 0; | |
2190 | ||
2191 | pring->stats.iocb_rsp++; | |
2192 | ||
92d7f7b0 JS |
2193 | /* |
2194 | * If resource errors reported from HBA, reduce | |
2195 | * queuedepths of the SCSI device. | |
2196 | */ | |
2197 | if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
2198 | (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) { | |
2199 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
eaf15d5b | 2200 | lpfc_rampdown_queue_depth(phba); |
92d7f7b0 JS |
2201 | spin_lock_irqsave(&phba->hbalock, iflag); |
2202 | } | |
2203 | ||
dea3101e | 2204 | if (irsp->ulpStatus) { |
2205 | /* Rsp ring <ringno> error: IOCB */ | |
ed957684 | 2206 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
e8b62011 | 2207 | "0328 Rsp Ring %d error: " |
ed957684 JS |
2208 | "IOCB Data: " |
2209 | "x%x x%x x%x x%x " | |
2210 | "x%x x%x x%x x%x " | |
2211 | "x%x x%x x%x x%x " | |
2212 | "x%x x%x x%x x%x\n", | |
ed957684 JS |
2213 | pring->ringno, |
2214 | irsp->un.ulpWord[0], | |
2215 | irsp->un.ulpWord[1], | |
2216 | irsp->un.ulpWord[2], | |
2217 | irsp->un.ulpWord[3], | |
2218 | irsp->un.ulpWord[4], | |
2219 | irsp->un.ulpWord[5], | |
2220 | *(((uint32_t *) irsp) + 6), | |
2221 | *(((uint32_t *) irsp) + 7), | |
2222 | *(((uint32_t *) irsp) + 8), | |
2223 | *(((uint32_t *) irsp) + 9), | |
2224 | *(((uint32_t *) irsp) + 10), | |
2225 | *(((uint32_t *) irsp) + 11), | |
2226 | *(((uint32_t *) irsp) + 12), | |
2227 | *(((uint32_t *) irsp) + 13), | |
2228 | *(((uint32_t *) irsp) + 14), | |
2229 | *(((uint32_t *) irsp) + 15)); | |
dea3101e | 2230 | } |
2231 | ||
2232 | /* | |
2233 | * Fetch the IOCB command type and call the correct | |
2234 | * completion routine. Solicited and Unsolicited | |
2235 | * IOCBs on the ELS ring get freed back to the | |
2236 | * lpfc_iocb_list by the discovery kernel thread. | |
2237 | */ | |
2238 | iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK; | |
2239 | type = lpfc_sli_iocb_cmd_type(iocb_cmd_type); | |
2240 | if (type == LPFC_SOL_IOCB) { | |
9c2face6 | 2241 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 2242 | rc = lpfc_sli_process_sol_iocb(phba, pring, |
2e0fef85 JS |
2243 | saveq); |
2244 | spin_lock_irqsave(&phba->hbalock, iflag); | |
dea3101e | 2245 | } else if (type == LPFC_UNSOL_IOCB) { |
9c2face6 | 2246 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 2247 | rc = lpfc_sli_process_unsol_iocb(phba, pring, |
2e0fef85 JS |
2248 | saveq); |
2249 | spin_lock_irqsave(&phba->hbalock, iflag); | |
9c2face6 JS |
2250 | if (!rc) |
2251 | free_saveq = 0; | |
dea3101e | 2252 | } else if (type == LPFC_ABORT_IOCB) { |
2253 | if ((irsp->ulpCommand != CMD_XRI_ABORTED_CX) && | |
2254 | ((cmdiocbp = | |
604a3e30 JB |
2255 | lpfc_sli_iocbq_lookup(phba, pring, |
2256 | saveq)))) { | |
dea3101e | 2257 | /* Call the specified completion |
2258 | routine */ | |
2259 | if (cmdiocbp->iocb_cmpl) { | |
2260 | spin_unlock_irqrestore( | |
2e0fef85 | 2261 | &phba->hbalock, |
dea3101e | 2262 | iflag); |
2263 | (cmdiocbp->iocb_cmpl) (phba, | |
2264 | cmdiocbp, saveq); | |
2265 | spin_lock_irqsave( | |
2e0fef85 | 2266 | &phba->hbalock, |
dea3101e | 2267 | iflag); |
604a3e30 | 2268 | } else |
2e0fef85 | 2269 | __lpfc_sli_release_iocbq(phba, |
604a3e30 | 2270 | cmdiocbp); |
dea3101e | 2271 | } |
2272 | } else if (type == LPFC_UNKNOWN_IOCB) { | |
2273 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
2274 | ||
2275 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
2276 | ||
2277 | memset(adaptermsg, 0, | |
2278 | LPFC_MAX_ADPTMSG); | |
2279 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
2280 | MAX_MSG_DATA); | |
2281 | dev_warn(&((phba->pcidev)->dev), | |
898eb71c | 2282 | "lpfc%d: %s\n", |
dea3101e | 2283 | phba->brd_no, adaptermsg); |
2284 | } else { | |
2285 | /* Unknown IOCB command */ | |
92d7f7b0 | 2286 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 | 2287 | "0335 Unknown IOCB " |
92d7f7b0 JS |
2288 | "command Data: x%x " |
2289 | "x%x x%x x%x\n", | |
92d7f7b0 JS |
2290 | irsp->ulpCommand, |
2291 | irsp->ulpStatus, | |
2292 | irsp->ulpIoTag, | |
2293 | irsp->ulpContext); | |
dea3101e | 2294 | } |
2295 | } | |
2296 | ||
2297 | if (free_saveq) { | |
2e0fef85 JS |
2298 | list_for_each_entry_safe(rspiocbp, next_iocb, |
2299 | &saveq->list, list) { | |
2300 | list_del(&rspiocbp->list); | |
2301 | __lpfc_sli_release_iocbq(phba, | |
2302 | rspiocbp); | |
dea3101e | 2303 | } |
2e0fef85 | 2304 | __lpfc_sli_release_iocbq(phba, saveq); |
dea3101e | 2305 | } |
92d7f7b0 | 2306 | rspiocbp = NULL; |
dea3101e | 2307 | } |
2308 | ||
2309 | /* | |
2310 | * If the port response put pointer has not been updated, sync | |
2311 | * the pgp->rspPutInx in the MAILBOX_tand fetch the new port | |
2312 | * response put pointer. | |
2313 | */ | |
2314 | if (pring->rspidx == portRspPut) { | |
2315 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2316 | } | |
2317 | } /* while (pring->rspidx != portRspPut) */ | |
2318 | ||
92d7f7b0 | 2319 | if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) { |
dea3101e | 2320 | /* At least one response entry has been freed */ |
2321 | pring->stats.iocb_rsp_full++; | |
2322 | /* SET RxRE_RSP in Chip Att register */ | |
2323 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
2324 | writel(status, phba->CAregaddr); | |
2325 | readl(phba->CAregaddr); /* flush */ | |
2326 | } | |
2327 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2328 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
2329 | pring->stats.iocb_cmd_empty++; | |
2330 | ||
2331 | /* Force update of the local copy of cmdGetInx */ | |
2332 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
2333 | lpfc_sli_resume_iocb(phba, pring); | |
2334 | ||
2335 | if ((pring->lpfc_sli_cmd_available)) | |
2336 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
2337 | ||
2338 | } | |
2339 | ||
2e0fef85 | 2340 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 2341 | return rc; |
2342 | } | |
2343 | ||
e59058c4 | 2344 | /** |
3621a710 | 2345 | * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring |
e59058c4 JS |
2346 | * @phba: Pointer to HBA context object. |
2347 | * @pring: Pointer to driver SLI ring object. | |
2348 | * | |
2349 | * This function aborts all iocbs in the given ring and frees all the iocb | |
2350 | * objects in txq. This function issues an abort iocb for all the iocb commands | |
2351 | * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before | |
2352 | * the return of this function. The caller is not required to hold any locks. | |
2353 | **/ | |
2e0fef85 | 2354 | void |
dea3101e | 2355 | lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
2356 | { | |
2534ba75 | 2357 | LIST_HEAD(completions); |
dea3101e | 2358 | struct lpfc_iocbq *iocb, *next_iocb; |
dea3101e | 2359 | |
92d7f7b0 JS |
2360 | if (pring->ringno == LPFC_ELS_RING) { |
2361 | lpfc_fabric_abort_hba(phba); | |
2362 | } | |
2363 | ||
dea3101e | 2364 | /* Error everything on txq and txcmplq |
2365 | * First do the txq. | |
2366 | */ | |
2e0fef85 | 2367 | spin_lock_irq(&phba->hbalock); |
2534ba75 | 2368 | list_splice_init(&pring->txq, &completions); |
dea3101e | 2369 | pring->txq_cnt = 0; |
dea3101e | 2370 | |
2371 | /* Next issue ABTS for everything on the txcmplq */ | |
2534ba75 JS |
2372 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) |
2373 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); | |
dea3101e | 2374 | |
2e0fef85 | 2375 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 2376 | |
a257bf90 JS |
2377 | /* Cancel all the IOCBs from the completions list */ |
2378 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
2379 | IOERR_SLI_ABORTED); | |
dea3101e | 2380 | } |
2381 | ||
a8e497d5 | 2382 | /** |
3621a710 | 2383 | * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring |
a8e497d5 JS |
2384 | * @phba: Pointer to HBA context object. |
2385 | * | |
2386 | * This function flushes all iocbs in the fcp ring and frees all the iocb | |
2387 | * objects in txq and txcmplq. This function will not issue abort iocbs | |
2388 | * for all the iocb commands in txcmplq, they will just be returned with | |
2389 | * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI | |
2390 | * slot has been permanently disabled. | |
2391 | **/ | |
2392 | void | |
2393 | lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba) | |
2394 | { | |
2395 | LIST_HEAD(txq); | |
2396 | LIST_HEAD(txcmplq); | |
a8e497d5 JS |
2397 | struct lpfc_sli *psli = &phba->sli; |
2398 | struct lpfc_sli_ring *pring; | |
2399 | ||
2400 | /* Currently, only one fcp ring */ | |
2401 | pring = &psli->ring[psli->fcp_ring]; | |
2402 | ||
2403 | spin_lock_irq(&phba->hbalock); | |
2404 | /* Retrieve everything on txq */ | |
2405 | list_splice_init(&pring->txq, &txq); | |
2406 | pring->txq_cnt = 0; | |
2407 | ||
2408 | /* Retrieve everything on the txcmplq */ | |
2409 | list_splice_init(&pring->txcmplq, &txcmplq); | |
2410 | pring->txcmplq_cnt = 0; | |
2411 | spin_unlock_irq(&phba->hbalock); | |
2412 | ||
2413 | /* Flush the txq */ | |
a257bf90 JS |
2414 | lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT, |
2415 | IOERR_SLI_DOWN); | |
a8e497d5 JS |
2416 | |
2417 | /* Flush the txcmpq */ | |
a257bf90 JS |
2418 | lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT, |
2419 | IOERR_SLI_DOWN); | |
a8e497d5 JS |
2420 | } |
2421 | ||
e59058c4 | 2422 | /** |
3621a710 | 2423 | * lpfc_sli_brdready - Check for host status bits |
e59058c4 JS |
2424 | * @phba: Pointer to HBA context object. |
2425 | * @mask: Bit mask to be checked. | |
2426 | * | |
2427 | * This function reads the host status register and compares | |
2428 | * with the provided bit mask to check if HBA completed | |
2429 | * the restart. This function will wait in a loop for the | |
2430 | * HBA to complete restart. If the HBA does not restart within | |
2431 | * 15 iterations, the function will reset the HBA again. The | |
2432 | * function returns 1 when HBA fail to restart otherwise returns | |
2433 | * zero. | |
2434 | **/ | |
41415862 | 2435 | int |
2e0fef85 | 2436 | lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask) |
dea3101e | 2437 | { |
41415862 JW |
2438 | uint32_t status; |
2439 | int i = 0; | |
2440 | int retval = 0; | |
dea3101e | 2441 | |
41415862 JW |
2442 | /* Read the HBA Host Status Register */ |
2443 | status = readl(phba->HSregaddr); | |
dea3101e | 2444 | |
41415862 JW |
2445 | /* |
2446 | * Check status register every 100ms for 5 retries, then every | |
2447 | * 500ms for 5, then every 2.5 sec for 5, then reset board and | |
2448 | * every 2.5 sec for 4. | |
2449 | * Break our of the loop if errors occurred during init. | |
2450 | */ | |
2451 | while (((status & mask) != mask) && | |
2452 | !(status & HS_FFERM) && | |
2453 | i++ < 20) { | |
dea3101e | 2454 | |
41415862 JW |
2455 | if (i <= 5) |
2456 | msleep(10); | |
2457 | else if (i <= 10) | |
2458 | msleep(500); | |
2459 | else | |
2460 | msleep(2500); | |
dea3101e | 2461 | |
41415862 | 2462 | if (i == 15) { |
2e0fef85 | 2463 | /* Do post */ |
92d7f7b0 | 2464 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 JW |
2465 | lpfc_sli_brdrestart(phba); |
2466 | } | |
2467 | /* Read the HBA Host Status Register */ | |
2468 | status = readl(phba->HSregaddr); | |
2469 | } | |
dea3101e | 2470 | |
41415862 JW |
2471 | /* Check to see if any errors occurred during init */ |
2472 | if ((status & HS_FFERM) || (i >= 20)) { | |
2e0fef85 | 2473 | phba->link_state = LPFC_HBA_ERROR; |
41415862 | 2474 | retval = 1; |
dea3101e | 2475 | } |
dea3101e | 2476 | |
41415862 JW |
2477 | return retval; |
2478 | } | |
dea3101e | 2479 | |
9290831f JS |
2480 | #define BARRIER_TEST_PATTERN (0xdeadbeef) |
2481 | ||
e59058c4 | 2482 | /** |
3621a710 | 2483 | * lpfc_reset_barrier - Make HBA ready for HBA reset |
e59058c4 JS |
2484 | * @phba: Pointer to HBA context object. |
2485 | * | |
2486 | * This function is called before resetting an HBA. This | |
2487 | * function requests HBA to quiesce DMAs before a reset. | |
2488 | **/ | |
2e0fef85 | 2489 | void lpfc_reset_barrier(struct lpfc_hba *phba) |
9290831f | 2490 | { |
65a29c16 JS |
2491 | uint32_t __iomem *resp_buf; |
2492 | uint32_t __iomem *mbox_buf; | |
9290831f JS |
2493 | volatile uint32_t mbox; |
2494 | uint32_t hc_copy; | |
2495 | int i; | |
2496 | uint8_t hdrtype; | |
2497 | ||
2498 | pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype); | |
2499 | if (hdrtype != 0x80 || | |
2500 | (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID && | |
2501 | FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID)) | |
2502 | return; | |
2503 | ||
2504 | /* | |
2505 | * Tell the other part of the chip to suspend temporarily all | |
2506 | * its DMA activity. | |
2507 | */ | |
65a29c16 | 2508 | resp_buf = phba->MBslimaddr; |
9290831f JS |
2509 | |
2510 | /* Disable the error attention */ | |
2511 | hc_copy = readl(phba->HCregaddr); | |
2512 | writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr); | |
2513 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 | 2514 | phba->link_flag |= LS_IGNORE_ERATT; |
9290831f JS |
2515 | |
2516 | if (readl(phba->HAregaddr) & HA_ERATT) { | |
2517 | /* Clear Chip error bit */ | |
2518 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 2519 | phba->pport->stopped = 1; |
9290831f JS |
2520 | } |
2521 | ||
2522 | mbox = 0; | |
2523 | ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD; | |
2524 | ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP; | |
2525 | ||
2526 | writel(BARRIER_TEST_PATTERN, (resp_buf + 1)); | |
65a29c16 | 2527 | mbox_buf = phba->MBslimaddr; |
9290831f JS |
2528 | writel(mbox, mbox_buf); |
2529 | ||
2530 | for (i = 0; | |
2531 | readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++) | |
2532 | mdelay(1); | |
2533 | ||
2534 | if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) { | |
2535 | if (phba->sli.sli_flag & LPFC_SLI2_ACTIVE || | |
2e0fef85 | 2536 | phba->pport->stopped) |
9290831f JS |
2537 | goto restore_hc; |
2538 | else | |
2539 | goto clear_errat; | |
2540 | } | |
2541 | ||
2542 | ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST; | |
2543 | for (i = 0; readl(resp_buf) != mbox && i < 500; i++) | |
2544 | mdelay(1); | |
2545 | ||
2546 | clear_errat: | |
2547 | ||
2548 | while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500) | |
2549 | mdelay(1); | |
2550 | ||
2551 | if (readl(phba->HAregaddr) & HA_ERATT) { | |
2552 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 2553 | phba->pport->stopped = 1; |
9290831f JS |
2554 | } |
2555 | ||
2556 | restore_hc: | |
2e0fef85 | 2557 | phba->link_flag &= ~LS_IGNORE_ERATT; |
9290831f JS |
2558 | writel(hc_copy, phba->HCregaddr); |
2559 | readl(phba->HCregaddr); /* flush */ | |
2560 | } | |
2561 | ||
e59058c4 | 2562 | /** |
3621a710 | 2563 | * lpfc_sli_brdkill - Issue a kill_board mailbox command |
e59058c4 JS |
2564 | * @phba: Pointer to HBA context object. |
2565 | * | |
2566 | * This function issues a kill_board mailbox command and waits for | |
2567 | * the error attention interrupt. This function is called for stopping | |
2568 | * the firmware processing. The caller is not required to hold any | |
2569 | * locks. This function calls lpfc_hba_down_post function to free | |
2570 | * any pending commands after the kill. The function will return 1 when it | |
2571 | * fails to kill the board else will return 0. | |
2572 | **/ | |
41415862 | 2573 | int |
2e0fef85 | 2574 | lpfc_sli_brdkill(struct lpfc_hba *phba) |
41415862 JW |
2575 | { |
2576 | struct lpfc_sli *psli; | |
2577 | LPFC_MBOXQ_t *pmb; | |
2578 | uint32_t status; | |
2579 | uint32_t ha_copy; | |
2580 | int retval; | |
2581 | int i = 0; | |
dea3101e | 2582 | |
41415862 | 2583 | psli = &phba->sli; |
dea3101e | 2584 | |
41415862 | 2585 | /* Kill HBA */ |
ed957684 | 2586 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
e8b62011 JS |
2587 | "0329 Kill HBA Data: x%x x%x\n", |
2588 | phba->pport->port_state, psli->sli_flag); | |
41415862 | 2589 | |
98c9ea5c JS |
2590 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
2591 | if (!pmb) | |
41415862 | 2592 | return 1; |
41415862 JW |
2593 | |
2594 | /* Disable the error attention */ | |
2e0fef85 | 2595 | spin_lock_irq(&phba->hbalock); |
41415862 JW |
2596 | status = readl(phba->HCregaddr); |
2597 | status &= ~HC_ERINT_ENA; | |
2598 | writel(status, phba->HCregaddr); | |
2599 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 JS |
2600 | phba->link_flag |= LS_IGNORE_ERATT; |
2601 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
2602 | |
2603 | lpfc_kill_board(phba, pmb); | |
2604 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
2605 | retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
2606 | ||
2607 | if (retval != MBX_SUCCESS) { | |
2608 | if (retval != MBX_BUSY) | |
2609 | mempool_free(pmb, phba->mbox_mem_pool); | |
2e0fef85 JS |
2610 | spin_lock_irq(&phba->hbalock); |
2611 | phba->link_flag &= ~LS_IGNORE_ERATT; | |
2612 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
2613 | return 1; |
2614 | } | |
2615 | ||
9290831f JS |
2616 | psli->sli_flag &= ~LPFC_SLI2_ACTIVE; |
2617 | ||
41415862 JW |
2618 | mempool_free(pmb, phba->mbox_mem_pool); |
2619 | ||
2620 | /* There is no completion for a KILL_BOARD mbox cmd. Check for an error | |
2621 | * attention every 100ms for 3 seconds. If we don't get ERATT after | |
2622 | * 3 seconds we still set HBA_ERROR state because the status of the | |
2623 | * board is now undefined. | |
2624 | */ | |
2625 | ha_copy = readl(phba->HAregaddr); | |
2626 | ||
2627 | while ((i++ < 30) && !(ha_copy & HA_ERATT)) { | |
2628 | mdelay(100); | |
2629 | ha_copy = readl(phba->HAregaddr); | |
2630 | } | |
2631 | ||
2632 | del_timer_sync(&psli->mbox_tmo); | |
9290831f JS |
2633 | if (ha_copy & HA_ERATT) { |
2634 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 2635 | phba->pport->stopped = 1; |
9290831f | 2636 | } |
2e0fef85 | 2637 | spin_lock_irq(&phba->hbalock); |
41415862 | 2638 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 JS |
2639 | phba->link_flag &= ~LS_IGNORE_ERATT; |
2640 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
2641 | |
2642 | psli->mbox_active = NULL; | |
2643 | lpfc_hba_down_post(phba); | |
2e0fef85 | 2644 | phba->link_state = LPFC_HBA_ERROR; |
41415862 | 2645 | |
2e0fef85 | 2646 | return ha_copy & HA_ERATT ? 0 : 1; |
dea3101e | 2647 | } |
2648 | ||
e59058c4 | 2649 | /** |
3621a710 | 2650 | * lpfc_sli_brdreset - Reset the HBA |
e59058c4 JS |
2651 | * @phba: Pointer to HBA context object. |
2652 | * | |
2653 | * This function resets the HBA by writing HC_INITFF to the control | |
2654 | * register. After the HBA resets, this function resets all the iocb ring | |
2655 | * indices. This function disables PCI layer parity checking during | |
2656 | * the reset. | |
2657 | * This function returns 0 always. | |
2658 | * The caller is not required to hold any locks. | |
2659 | **/ | |
41415862 | 2660 | int |
2e0fef85 | 2661 | lpfc_sli_brdreset(struct lpfc_hba *phba) |
dea3101e | 2662 | { |
41415862 | 2663 | struct lpfc_sli *psli; |
dea3101e | 2664 | struct lpfc_sli_ring *pring; |
41415862 | 2665 | uint16_t cfg_value; |
dea3101e | 2666 | int i; |
dea3101e | 2667 | |
41415862 | 2668 | psli = &phba->sli; |
dea3101e | 2669 | |
41415862 JW |
2670 | /* Reset HBA */ |
2671 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 2672 | "0325 Reset HBA Data: x%x x%x\n", |
2e0fef85 | 2673 | phba->pport->port_state, psli->sli_flag); |
dea3101e | 2674 | |
2675 | /* perform board reset */ | |
2676 | phba->fc_eventTag = 0; | |
2e0fef85 JS |
2677 | phba->pport->fc_myDID = 0; |
2678 | phba->pport->fc_prevDID = 0; | |
dea3101e | 2679 | |
41415862 JW |
2680 | /* Turn off parity checking and serr during the physical reset */ |
2681 | pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value); | |
2682 | pci_write_config_word(phba->pcidev, PCI_COMMAND, | |
2683 | (cfg_value & | |
2684 | ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR))); | |
2685 | ||
1c067a42 | 2686 | psli->sli_flag &= ~(LPFC_SLI2_ACTIVE | LPFC_PROCESS_LA); |
41415862 JW |
2687 | /* Now toggle INITFF bit in the Host Control Register */ |
2688 | writel(HC_INITFF, phba->HCregaddr); | |
2689 | mdelay(1); | |
2690 | readl(phba->HCregaddr); /* flush */ | |
2691 | writel(0, phba->HCregaddr); | |
2692 | readl(phba->HCregaddr); /* flush */ | |
2693 | ||
2694 | /* Restore PCI cmd register */ | |
2695 | pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value); | |
dea3101e | 2696 | |
2697 | /* Initialize relevant SLI info */ | |
41415862 JW |
2698 | for (i = 0; i < psli->num_rings; i++) { |
2699 | pring = &psli->ring[i]; | |
dea3101e | 2700 | pring->flag = 0; |
2701 | pring->rspidx = 0; | |
2702 | pring->next_cmdidx = 0; | |
2703 | pring->local_getidx = 0; | |
2704 | pring->cmdidx = 0; | |
2705 | pring->missbufcnt = 0; | |
2706 | } | |
dea3101e | 2707 | |
2e0fef85 | 2708 | phba->link_state = LPFC_WARM_START; |
41415862 JW |
2709 | return 0; |
2710 | } | |
2711 | ||
e59058c4 | 2712 | /** |
3621a710 | 2713 | * lpfc_sli_brdrestart - Restart the HBA |
e59058c4 JS |
2714 | * @phba: Pointer to HBA context object. |
2715 | * | |
2716 | * This function is called in the SLI initialization code path to | |
2717 | * restart the HBA. The caller is not required to hold any lock. | |
2718 | * This function writes MBX_RESTART mailbox command to the SLIM and | |
2719 | * resets the HBA. At the end of the function, it calls lpfc_hba_down_post | |
2720 | * function to free any pending commands. The function enables | |
2721 | * POST only during the first initialization. The function returns zero. | |
2722 | * The function does not guarantee completion of MBX_RESTART mailbox | |
2723 | * command before the return of this function. | |
2724 | **/ | |
41415862 | 2725 | int |
2e0fef85 | 2726 | lpfc_sli_brdrestart(struct lpfc_hba *phba) |
41415862 JW |
2727 | { |
2728 | MAILBOX_t *mb; | |
2729 | struct lpfc_sli *psli; | |
41415862 JW |
2730 | volatile uint32_t word0; |
2731 | void __iomem *to_slim; | |
2732 | ||
2e0fef85 | 2733 | spin_lock_irq(&phba->hbalock); |
41415862 JW |
2734 | |
2735 | psli = &phba->sli; | |
2736 | ||
2737 | /* Restart HBA */ | |
2738 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 2739 | "0337 Restart HBA Data: x%x x%x\n", |
2e0fef85 | 2740 | phba->pport->port_state, psli->sli_flag); |
41415862 JW |
2741 | |
2742 | word0 = 0; | |
2743 | mb = (MAILBOX_t *) &word0; | |
2744 | mb->mbxCommand = MBX_RESTART; | |
2745 | mb->mbxHc = 1; | |
2746 | ||
9290831f JS |
2747 | lpfc_reset_barrier(phba); |
2748 | ||
41415862 JW |
2749 | to_slim = phba->MBslimaddr; |
2750 | writel(*(uint32_t *) mb, to_slim); | |
2751 | readl(to_slim); /* flush */ | |
2752 | ||
2753 | /* Only skip post after fc_ffinit is completed */ | |
eaf15d5b | 2754 | if (phba->pport->port_state) |
41415862 | 2755 | word0 = 1; /* This is really setting up word1 */ |
eaf15d5b | 2756 | else |
41415862 | 2757 | word0 = 0; /* This is really setting up word1 */ |
65a29c16 | 2758 | to_slim = phba->MBslimaddr + sizeof (uint32_t); |
41415862 JW |
2759 | writel(*(uint32_t *) mb, to_slim); |
2760 | readl(to_slim); /* flush */ | |
dea3101e | 2761 | |
41415862 | 2762 | lpfc_sli_brdreset(phba); |
2e0fef85 JS |
2763 | phba->pport->stopped = 0; |
2764 | phba->link_state = LPFC_INIT_START; | |
41415862 | 2765 | |
2e0fef85 | 2766 | spin_unlock_irq(&phba->hbalock); |
41415862 | 2767 | |
64ba8818 JS |
2768 | memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets)); |
2769 | psli->stats_start = get_seconds(); | |
2770 | ||
eaf15d5b JS |
2771 | /* Give the INITFF and Post time to settle. */ |
2772 | mdelay(100); | |
41415862 JW |
2773 | |
2774 | lpfc_hba_down_post(phba); | |
dea3101e | 2775 | |
2776 | return 0; | |
2777 | } | |
2778 | ||
e59058c4 | 2779 | /** |
3621a710 | 2780 | * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart |
e59058c4 JS |
2781 | * @phba: Pointer to HBA context object. |
2782 | * | |
2783 | * This function is called after a HBA restart to wait for successful | |
2784 | * restart of the HBA. Successful restart of the HBA is indicated by | |
2785 | * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15 | |
2786 | * iteration, the function will restart the HBA again. The function returns | |
2787 | * zero if HBA successfully restarted else returns negative error code. | |
2788 | **/ | |
dea3101e | 2789 | static int |
2790 | lpfc_sli_chipset_init(struct lpfc_hba *phba) | |
2791 | { | |
2792 | uint32_t status, i = 0; | |
2793 | ||
2794 | /* Read the HBA Host Status Register */ | |
2795 | status = readl(phba->HSregaddr); | |
2796 | ||
2797 | /* Check status register to see what current state is */ | |
2798 | i = 0; | |
2799 | while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) { | |
2800 | ||
2801 | /* Check every 100ms for 5 retries, then every 500ms for 5, then | |
2802 | * every 2.5 sec for 5, then reset board and every 2.5 sec for | |
2803 | * 4. | |
2804 | */ | |
2805 | if (i++ >= 20) { | |
2806 | /* Adapter failed to init, timeout, status reg | |
2807 | <status> */ | |
ed957684 | 2808 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 2809 | "0436 Adapter failed to init, " |
09372820 JS |
2810 | "timeout, status reg x%x, " |
2811 | "FW Data: A8 x%x AC x%x\n", status, | |
2812 | readl(phba->MBslimaddr + 0xa8), | |
2813 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 2814 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 2815 | return -ETIMEDOUT; |
2816 | } | |
2817 | ||
2818 | /* Check to see if any errors occurred during init */ | |
2819 | if (status & HS_FFERM) { | |
2820 | /* ERROR: During chipset initialization */ | |
2821 | /* Adapter failed to init, chipset, status reg | |
2822 | <status> */ | |
ed957684 | 2823 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 2824 | "0437 Adapter failed to init, " |
09372820 JS |
2825 | "chipset, status reg x%x, " |
2826 | "FW Data: A8 x%x AC x%x\n", status, | |
2827 | readl(phba->MBslimaddr + 0xa8), | |
2828 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 2829 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 2830 | return -EIO; |
2831 | } | |
2832 | ||
2833 | if (i <= 5) { | |
2834 | msleep(10); | |
2835 | } else if (i <= 10) { | |
2836 | msleep(500); | |
2837 | } else { | |
2838 | msleep(2500); | |
2839 | } | |
2840 | ||
2841 | if (i == 15) { | |
2e0fef85 | 2842 | /* Do post */ |
92d7f7b0 | 2843 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 | 2844 | lpfc_sli_brdrestart(phba); |
dea3101e | 2845 | } |
2846 | /* Read the HBA Host Status Register */ | |
2847 | status = readl(phba->HSregaddr); | |
2848 | } | |
2849 | ||
2850 | /* Check to see if any errors occurred during init */ | |
2851 | if (status & HS_FFERM) { | |
2852 | /* ERROR: During chipset initialization */ | |
2853 | /* Adapter failed to init, chipset, status reg <status> */ | |
ed957684 | 2854 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 2855 | "0438 Adapter failed to init, chipset, " |
09372820 JS |
2856 | "status reg x%x, " |
2857 | "FW Data: A8 x%x AC x%x\n", status, | |
2858 | readl(phba->MBslimaddr + 0xa8), | |
2859 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 2860 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 2861 | return -EIO; |
2862 | } | |
2863 | ||
2864 | /* Clear all interrupt enable conditions */ | |
2865 | writel(0, phba->HCregaddr); | |
2866 | readl(phba->HCregaddr); /* flush */ | |
2867 | ||
2868 | /* setup host attn register */ | |
2869 | writel(0xffffffff, phba->HAregaddr); | |
2870 | readl(phba->HAregaddr); /* flush */ | |
2871 | return 0; | |
2872 | } | |
2873 | ||
e59058c4 | 2874 | /** |
3621a710 | 2875 | * lpfc_sli_hbq_count - Get the number of HBQs to be configured |
e59058c4 JS |
2876 | * |
2877 | * This function calculates and returns the number of HBQs required to be | |
2878 | * configured. | |
2879 | **/ | |
78b2d852 | 2880 | int |
ed957684 JS |
2881 | lpfc_sli_hbq_count(void) |
2882 | { | |
92d7f7b0 | 2883 | return ARRAY_SIZE(lpfc_hbq_defs); |
ed957684 JS |
2884 | } |
2885 | ||
e59058c4 | 2886 | /** |
3621a710 | 2887 | * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries |
e59058c4 JS |
2888 | * |
2889 | * This function adds the number of hbq entries in every HBQ to get | |
2890 | * the total number of hbq entries required for the HBA and returns | |
2891 | * the total count. | |
2892 | **/ | |
ed957684 JS |
2893 | static int |
2894 | lpfc_sli_hbq_entry_count(void) | |
2895 | { | |
2896 | int hbq_count = lpfc_sli_hbq_count(); | |
2897 | int count = 0; | |
2898 | int i; | |
2899 | ||
2900 | for (i = 0; i < hbq_count; ++i) | |
92d7f7b0 | 2901 | count += lpfc_hbq_defs[i]->entry_count; |
ed957684 JS |
2902 | return count; |
2903 | } | |
2904 | ||
e59058c4 | 2905 | /** |
3621a710 | 2906 | * lpfc_sli_hbq_size - Calculate memory required for all hbq entries |
e59058c4 JS |
2907 | * |
2908 | * This function calculates amount of memory required for all hbq entries | |
2909 | * to be configured and returns the total memory required. | |
2910 | **/ | |
dea3101e | 2911 | int |
ed957684 JS |
2912 | lpfc_sli_hbq_size(void) |
2913 | { | |
2914 | return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry); | |
2915 | } | |
2916 | ||
e59058c4 | 2917 | /** |
3621a710 | 2918 | * lpfc_sli_hbq_setup - configure and initialize HBQs |
e59058c4 JS |
2919 | * @phba: Pointer to HBA context object. |
2920 | * | |
2921 | * This function is called during the SLI initialization to configure | |
2922 | * all the HBQs and post buffers to the HBQ. The caller is not | |
2923 | * required to hold any locks. This function will return zero if successful | |
2924 | * else it will return negative error code. | |
2925 | **/ | |
ed957684 JS |
2926 | static int |
2927 | lpfc_sli_hbq_setup(struct lpfc_hba *phba) | |
2928 | { | |
2929 | int hbq_count = lpfc_sli_hbq_count(); | |
2930 | LPFC_MBOXQ_t *pmb; | |
2931 | MAILBOX_t *pmbox; | |
2932 | uint32_t hbqno; | |
2933 | uint32_t hbq_entry_index; | |
ed957684 | 2934 | |
92d7f7b0 JS |
2935 | /* Get a Mailbox buffer to setup mailbox |
2936 | * commands for HBA initialization | |
2937 | */ | |
ed957684 JS |
2938 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
2939 | ||
2940 | if (!pmb) | |
2941 | return -ENOMEM; | |
2942 | ||
2943 | pmbox = &pmb->mb; | |
2944 | ||
2945 | /* Initialize the struct lpfc_sli_hbq structure for each hbq */ | |
2946 | phba->link_state = LPFC_INIT_MBX_CMDS; | |
3163f725 | 2947 | phba->hbq_in_use = 1; |
ed957684 JS |
2948 | |
2949 | hbq_entry_index = 0; | |
2950 | for (hbqno = 0; hbqno < hbq_count; ++hbqno) { | |
2951 | phba->hbqs[hbqno].next_hbqPutIdx = 0; | |
2952 | phba->hbqs[hbqno].hbqPutIdx = 0; | |
2953 | phba->hbqs[hbqno].local_hbqGetIdx = 0; | |
2954 | phba->hbqs[hbqno].entry_count = | |
92d7f7b0 | 2955 | lpfc_hbq_defs[hbqno]->entry_count; |
51ef4c26 JS |
2956 | lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno], |
2957 | hbq_entry_index, pmb); | |
ed957684 JS |
2958 | hbq_entry_index += phba->hbqs[hbqno].entry_count; |
2959 | ||
2960 | if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { | |
2961 | /* Adapter failed to init, mbxCmd <cmd> CFG_RING, | |
2962 | mbxStatus <status>, ring <num> */ | |
2963 | ||
2964 | lpfc_printf_log(phba, KERN_ERR, | |
92d7f7b0 | 2965 | LOG_SLI | LOG_VPORT, |
e8b62011 | 2966 | "1805 Adapter failed to init. " |
ed957684 | 2967 | "Data: x%x x%x x%x\n", |
e8b62011 | 2968 | pmbox->mbxCommand, |
ed957684 JS |
2969 | pmbox->mbxStatus, hbqno); |
2970 | ||
2971 | phba->link_state = LPFC_HBA_ERROR; | |
2972 | mempool_free(pmb, phba->mbox_mem_pool); | |
ed957684 JS |
2973 | return ENXIO; |
2974 | } | |
2975 | } | |
2976 | phba->hbq_count = hbq_count; | |
2977 | ||
ed957684 JS |
2978 | mempool_free(pmb, phba->mbox_mem_pool); |
2979 | ||
92d7f7b0 | 2980 | /* Initially populate or replenish the HBQs */ |
d7c255b2 JS |
2981 | for (hbqno = 0; hbqno < hbq_count; ++hbqno) |
2982 | lpfc_sli_hbqbuf_init_hbqs(phba, hbqno); | |
ed957684 JS |
2983 | return 0; |
2984 | } | |
2985 | ||
e59058c4 | 2986 | /** |
3621a710 | 2987 | * lpfc_sli_config_port - Issue config port mailbox command |
e59058c4 JS |
2988 | * @phba: Pointer to HBA context object. |
2989 | * @sli_mode: sli mode - 2/3 | |
2990 | * | |
2991 | * This function is called by the sli intialization code path | |
2992 | * to issue config_port mailbox command. This function restarts the | |
2993 | * HBA firmware and issues a config_port mailbox command to configure | |
2994 | * the SLI interface in the sli mode specified by sli_mode | |
2995 | * variable. The caller is not required to hold any locks. | |
2996 | * The function returns 0 if successful, else returns negative error | |
2997 | * code. | |
2998 | **/ | |
9399627f JS |
2999 | int |
3000 | lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode) | |
dea3101e | 3001 | { |
3002 | LPFC_MBOXQ_t *pmb; | |
3003 | uint32_t resetcount = 0, rc = 0, done = 0; | |
3004 | ||
3005 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
3006 | if (!pmb) { | |
2e0fef85 | 3007 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 3008 | return -ENOMEM; |
3009 | } | |
3010 | ||
ed957684 | 3011 | phba->sli_rev = sli_mode; |
dea3101e | 3012 | while (resetcount < 2 && !done) { |
2e0fef85 | 3013 | spin_lock_irq(&phba->hbalock); |
1c067a42 | 3014 | phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3015 | spin_unlock_irq(&phba->hbalock); |
92d7f7b0 | 3016 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 | 3017 | lpfc_sli_brdrestart(phba); |
dea3101e | 3018 | rc = lpfc_sli_chipset_init(phba); |
3019 | if (rc) | |
3020 | break; | |
3021 | ||
2e0fef85 | 3022 | spin_lock_irq(&phba->hbalock); |
1c067a42 | 3023 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3024 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 3025 | resetcount++; |
3026 | ||
ed957684 JS |
3027 | /* Call pre CONFIG_PORT mailbox command initialization. A |
3028 | * value of 0 means the call was successful. Any other | |
3029 | * nonzero value is a failure, but if ERESTART is returned, | |
3030 | * the driver may reset the HBA and try again. | |
3031 | */ | |
dea3101e | 3032 | rc = lpfc_config_port_prep(phba); |
3033 | if (rc == -ERESTART) { | |
ed957684 | 3034 | phba->link_state = LPFC_LINK_UNKNOWN; |
dea3101e | 3035 | continue; |
34b02dcd | 3036 | } else if (rc) |
dea3101e | 3037 | break; |
2e0fef85 | 3038 | phba->link_state = LPFC_INIT_MBX_CMDS; |
dea3101e | 3039 | lpfc_config_port(phba, pmb); |
3040 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
34b02dcd JS |
3041 | phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED | |
3042 | LPFC_SLI3_HBQ_ENABLED | | |
3043 | LPFC_SLI3_CRP_ENABLED | | |
e2a0a9d6 JS |
3044 | LPFC_SLI3_INB_ENABLED | |
3045 | LPFC_SLI3_BG_ENABLED); | |
ed957684 | 3046 | if (rc != MBX_SUCCESS) { |
dea3101e | 3047 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 3048 | "0442 Adapter failed to init, mbxCmd x%x " |
92d7f7b0 | 3049 | "CONFIG_PORT, mbxStatus x%x Data: x%x\n", |
e8b62011 | 3050 | pmb->mb.mbxCommand, pmb->mb.mbxStatus, 0); |
2e0fef85 | 3051 | spin_lock_irq(&phba->hbalock); |
dea3101e | 3052 | phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE; |
2e0fef85 JS |
3053 | spin_unlock_irq(&phba->hbalock); |
3054 | rc = -ENXIO; | |
34b02dcd | 3055 | } else |
ed957684 | 3056 | done = 1; |
dea3101e | 3057 | } |
ed957684 JS |
3058 | if (!done) { |
3059 | rc = -EINVAL; | |
3060 | goto do_prep_failed; | |
3061 | } | |
34b02dcd JS |
3062 | if (pmb->mb.un.varCfgPort.sli_mode == 3) { |
3063 | if (!pmb->mb.un.varCfgPort.cMA) { | |
3064 | rc = -ENXIO; | |
3065 | goto do_prep_failed; | |
3066 | } | |
3067 | if (phba->max_vpi && pmb->mb.un.varCfgPort.gmv) { | |
3068 | phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; | |
3069 | phba->max_vpi = pmb->mb.un.varCfgPort.max_vpi; | |
3070 | } else | |
3071 | phba->max_vpi = 0; | |
3072 | if (pmb->mb.un.varCfgPort.gerbm) | |
3073 | phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED; | |
3074 | if (pmb->mb.un.varCfgPort.gcrp) | |
3075 | phba->sli3_options |= LPFC_SLI3_CRP_ENABLED; | |
3076 | if (pmb->mb.un.varCfgPort.ginb) { | |
3077 | phba->sli3_options |= LPFC_SLI3_INB_ENABLED; | |
8f34f4ce | 3078 | phba->hbq_get = phba->mbox->us.s3_inb_pgp.hbq_get; |
34b02dcd JS |
3079 | phba->port_gp = phba->mbox->us.s3_inb_pgp.port; |
3080 | phba->inb_ha_copy = &phba->mbox->us.s3_inb_pgp.ha_copy; | |
3081 | phba->inb_counter = &phba->mbox->us.s3_inb_pgp.counter; | |
3082 | phba->inb_last_counter = | |
3083 | phba->mbox->us.s3_inb_pgp.counter; | |
3084 | } else { | |
8f34f4ce | 3085 | phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get; |
34b02dcd JS |
3086 | phba->port_gp = phba->mbox->us.s3_pgp.port; |
3087 | phba->inb_ha_copy = NULL; | |
3088 | phba->inb_counter = NULL; | |
3089 | } | |
e2a0a9d6 JS |
3090 | |
3091 | if (phba->cfg_enable_bg) { | |
3092 | if (pmb->mb.un.varCfgPort.gbg) | |
3093 | phba->sli3_options |= LPFC_SLI3_BG_ENABLED; | |
3094 | else | |
3095 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
3096 | "0443 Adapter did not grant " | |
3097 | "BlockGuard\n"); | |
3098 | } | |
34b02dcd | 3099 | } else { |
8f34f4ce | 3100 | phba->hbq_get = NULL; |
34b02dcd JS |
3101 | phba->port_gp = phba->mbox->us.s2.port; |
3102 | phba->inb_ha_copy = NULL; | |
3103 | phba->inb_counter = NULL; | |
d7c255b2 | 3104 | phba->max_vpi = 0; |
ed957684 | 3105 | } |
92d7f7b0 | 3106 | do_prep_failed: |
ed957684 JS |
3107 | mempool_free(pmb, phba->mbox_mem_pool); |
3108 | return rc; | |
3109 | } | |
3110 | ||
e59058c4 JS |
3111 | |
3112 | /** | |
3621a710 | 3113 | * lpfc_sli_hba_setup - SLI intialization function |
e59058c4 JS |
3114 | * @phba: Pointer to HBA context object. |
3115 | * | |
3116 | * This function is the main SLI intialization function. This function | |
3117 | * is called by the HBA intialization code, HBA reset code and HBA | |
3118 | * error attention handler code. Caller is not required to hold any | |
3119 | * locks. This function issues config_port mailbox command to configure | |
3120 | * the SLI, setup iocb rings and HBQ rings. In the end the function | |
3121 | * calls the config_port_post function to issue init_link mailbox | |
3122 | * command and to start the discovery. The function will return zero | |
3123 | * if successful, else it will return negative error code. | |
3124 | **/ | |
ed957684 JS |
3125 | int |
3126 | lpfc_sli_hba_setup(struct lpfc_hba *phba) | |
3127 | { | |
3128 | uint32_t rc; | |
92d7f7b0 | 3129 | int mode = 3; |
ed957684 JS |
3130 | |
3131 | switch (lpfc_sli_mode) { | |
3132 | case 2: | |
78b2d852 | 3133 | if (phba->cfg_enable_npiv) { |
92d7f7b0 | 3134 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 | 3135 | "1824 NPIV enabled: Override lpfc_sli_mode " |
92d7f7b0 | 3136 | "parameter (%d) to auto (0).\n", |
e8b62011 | 3137 | lpfc_sli_mode); |
92d7f7b0 JS |
3138 | break; |
3139 | } | |
ed957684 JS |
3140 | mode = 2; |
3141 | break; | |
3142 | case 0: | |
3143 | case 3: | |
3144 | break; | |
3145 | default: | |
92d7f7b0 | 3146 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 JS |
3147 | "1819 Unrecognized lpfc_sli_mode " |
3148 | "parameter: %d.\n", lpfc_sli_mode); | |
ed957684 JS |
3149 | |
3150 | break; | |
3151 | } | |
3152 | ||
9399627f JS |
3153 | rc = lpfc_sli_config_port(phba, mode); |
3154 | ||
ed957684 | 3155 | if (rc && lpfc_sli_mode == 3) |
92d7f7b0 | 3156 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 JS |
3157 | "1820 Unable to select SLI-3. " |
3158 | "Not supported by adapter.\n"); | |
ed957684 | 3159 | if (rc && mode != 2) |
9399627f | 3160 | rc = lpfc_sli_config_port(phba, 2); |
ed957684 | 3161 | if (rc) |
dea3101e | 3162 | goto lpfc_sli_hba_setup_error; |
3163 | ||
ed957684 JS |
3164 | if (phba->sli_rev == 3) { |
3165 | phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE; | |
3166 | phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE; | |
ed957684 JS |
3167 | } else { |
3168 | phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE; | |
3169 | phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE; | |
92d7f7b0 | 3170 | phba->sli3_options = 0; |
ed957684 JS |
3171 | } |
3172 | ||
3173 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
e8b62011 JS |
3174 | "0444 Firmware in SLI %x mode. Max_vpi %d\n", |
3175 | phba->sli_rev, phba->max_vpi); | |
ed957684 | 3176 | rc = lpfc_sli_ring_map(phba); |
dea3101e | 3177 | |
3178 | if (rc) | |
3179 | goto lpfc_sli_hba_setup_error; | |
3180 | ||
9399627f | 3181 | /* Init HBQs */ |
ed957684 JS |
3182 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
3183 | rc = lpfc_sli_hbq_setup(phba); | |
3184 | if (rc) | |
3185 | goto lpfc_sli_hba_setup_error; | |
3186 | } | |
3187 | ||
dea3101e | 3188 | phba->sli.sli_flag |= LPFC_PROCESS_LA; |
3189 | ||
3190 | rc = lpfc_config_port_post(phba); | |
3191 | if (rc) | |
3192 | goto lpfc_sli_hba_setup_error; | |
3193 | ||
ed957684 JS |
3194 | return rc; |
3195 | ||
92d7f7b0 | 3196 | lpfc_sli_hba_setup_error: |
2e0fef85 | 3197 | phba->link_state = LPFC_HBA_ERROR; |
ed957684 | 3198 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
e8b62011 | 3199 | "0445 Firmware initialization failed\n"); |
dea3101e | 3200 | return rc; |
3201 | } | |
3202 | ||
e59058c4 JS |
3203 | |
3204 | /** | |
3621a710 | 3205 | * lpfc_mbox_timeout - Timeout call back function for mbox timer |
e59058c4 | 3206 | * @ptr: context object - pointer to hba structure. |
dea3101e | 3207 | * |
e59058c4 JS |
3208 | * This is the callback function for mailbox timer. The mailbox |
3209 | * timer is armed when a new mailbox command is issued and the timer | |
3210 | * is deleted when the mailbox complete. The function is called by | |
3211 | * the kernel timer code when a mailbox does not complete within | |
3212 | * expected time. This function wakes up the worker thread to | |
3213 | * process the mailbox timeout and returns. All the processing is | |
3214 | * done by the worker thread function lpfc_mbox_timeout_handler. | |
3215 | **/ | |
dea3101e | 3216 | void |
3217 | lpfc_mbox_timeout(unsigned long ptr) | |
3218 | { | |
92d7f7b0 | 3219 | struct lpfc_hba *phba = (struct lpfc_hba *) ptr; |
dea3101e | 3220 | unsigned long iflag; |
2e0fef85 | 3221 | uint32_t tmo_posted; |
dea3101e | 3222 | |
2e0fef85 | 3223 | spin_lock_irqsave(&phba->pport->work_port_lock, iflag); |
92d7f7b0 | 3224 | tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO; |
2e0fef85 JS |
3225 | if (!tmo_posted) |
3226 | phba->pport->work_port_events |= WORKER_MBOX_TMO; | |
3227 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); | |
3228 | ||
5e9d9b82 JS |
3229 | if (!tmo_posted) |
3230 | lpfc_worker_wake_up(phba); | |
3231 | return; | |
dea3101e | 3232 | } |
3233 | ||
e59058c4 JS |
3234 | |
3235 | /** | |
3621a710 | 3236 | * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout |
e59058c4 JS |
3237 | * @phba: Pointer to HBA context object. |
3238 | * | |
3239 | * This function is called from worker thread when a mailbox command times out. | |
3240 | * The caller is not required to hold any locks. This function will reset the | |
3241 | * HBA and recover all the pending commands. | |
3242 | **/ | |
dea3101e | 3243 | void |
3244 | lpfc_mbox_timeout_handler(struct lpfc_hba *phba) | |
3245 | { | |
2e0fef85 JS |
3246 | LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active; |
3247 | MAILBOX_t *mb = &pmbox->mb; | |
1dcb58e5 JS |
3248 | struct lpfc_sli *psli = &phba->sli; |
3249 | struct lpfc_sli_ring *pring; | |
dea3101e | 3250 | |
a257bf90 JS |
3251 | /* Check the pmbox pointer first. There is a race condition |
3252 | * between the mbox timeout handler getting executed in the | |
3253 | * worklist and the mailbox actually completing. When this | |
3254 | * race condition occurs, the mbox_active will be NULL. | |
3255 | */ | |
3256 | spin_lock_irq(&phba->hbalock); | |
3257 | if (pmbox == NULL) { | |
3258 | lpfc_printf_log(phba, KERN_WARNING, | |
3259 | LOG_MBOX | LOG_SLI, | |
3260 | "0353 Active Mailbox cleared - mailbox timeout " | |
3261 | "exiting\n"); | |
3262 | spin_unlock_irq(&phba->hbalock); | |
3263 | return; | |
3264 | } | |
3265 | ||
dea3101e | 3266 | /* Mbox cmd <mbxCommand> timeout */ |
ed957684 | 3267 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
e8b62011 | 3268 | "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n", |
92d7f7b0 JS |
3269 | mb->mbxCommand, |
3270 | phba->pport->port_state, | |
3271 | phba->sli.sli_flag, | |
3272 | phba->sli.mbox_active); | |
a257bf90 | 3273 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 3274 | |
1dcb58e5 JS |
3275 | /* Setting state unknown so lpfc_sli_abort_iocb_ring |
3276 | * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing | |
3277 | * it to fail all oustanding SCSI IO. | |
3278 | */ | |
2e0fef85 JS |
3279 | spin_lock_irq(&phba->pport->work_port_lock); |
3280 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; | |
3281 | spin_unlock_irq(&phba->pport->work_port_lock); | |
3282 | spin_lock_irq(&phba->hbalock); | |
3283 | phba->link_state = LPFC_LINK_UNKNOWN; | |
1dcb58e5 | 3284 | psli->sli_flag &= ~LPFC_SLI2_ACTIVE; |
2e0fef85 | 3285 | spin_unlock_irq(&phba->hbalock); |
1dcb58e5 JS |
3286 | |
3287 | pring = &psli->ring[psli->fcp_ring]; | |
3288 | lpfc_sli_abort_iocb_ring(phba, pring); | |
3289 | ||
3290 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
76bb24ef | 3291 | "0345 Resetting board due to mailbox timeout\n"); |
1dcb58e5 JS |
3292 | /* |
3293 | * lpfc_offline calls lpfc_sli_hba_down which will clean up | |
3294 | * on oustanding mailbox commands. | |
3295 | */ | |
13815c83 JS |
3296 | /* If resets are disabled then set error state and return. */ |
3297 | if (!phba->cfg_enable_hba_reset) { | |
3298 | phba->link_state = LPFC_HBA_ERROR; | |
3299 | return; | |
3300 | } | |
1dcb58e5 JS |
3301 | lpfc_offline_prep(phba); |
3302 | lpfc_offline(phba); | |
3303 | lpfc_sli_brdrestart(phba); | |
58da1ffb | 3304 | lpfc_online(phba); |
1dcb58e5 | 3305 | lpfc_unblock_mgmt_io(phba); |
dea3101e | 3306 | return; |
3307 | } | |
3308 | ||
e59058c4 | 3309 | /** |
3621a710 | 3310 | * lpfc_sli_issue_mbox - Issue a mailbox command to firmware |
e59058c4 JS |
3311 | * @phba: Pointer to HBA context object. |
3312 | * @pmbox: Pointer to mailbox object. | |
3313 | * @flag: Flag indicating how the mailbox need to be processed. | |
3314 | * | |
3315 | * This function is called by discovery code and HBA management code | |
3316 | * to submit a mailbox command to firmware. This function gets the | |
3317 | * hbalock to protect the data structures. | |
3318 | * The mailbox command can be submitted in polling mode, in which case | |
3319 | * this function will wait in a polling loop for the completion of the | |
3320 | * mailbox. | |
3321 | * If the mailbox is submitted in no_wait mode (not polling) the | |
3322 | * function will submit the command and returns immediately without waiting | |
3323 | * for the mailbox completion. The no_wait is supported only when HBA | |
3324 | * is in SLI2/SLI3 mode - interrupts are enabled. | |
3325 | * The SLI interface allows only one mailbox pending at a time. If the | |
3326 | * mailbox is issued in polling mode and there is already a mailbox | |
3327 | * pending, then the function will return an error. If the mailbox is issued | |
3328 | * in NO_WAIT mode and there is a mailbox pending already, the function | |
3329 | * will return MBX_BUSY after queuing the mailbox into mailbox queue. | |
3330 | * The sli layer owns the mailbox object until the completion of mailbox | |
3331 | * command if this function return MBX_BUSY or MBX_SUCCESS. For all other | |
3332 | * return codes the caller owns the mailbox command after the return of | |
3333 | * the function. | |
3334 | **/ | |
dea3101e | 3335 | int |
2e0fef85 | 3336 | lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag) |
dea3101e | 3337 | { |
dea3101e | 3338 | MAILBOX_t *mb; |
2e0fef85 | 3339 | struct lpfc_sli *psli = &phba->sli; |
dea3101e | 3340 | uint32_t status, evtctr; |
3341 | uint32_t ha_copy; | |
3342 | int i; | |
09372820 | 3343 | unsigned long timeout; |
dea3101e | 3344 | unsigned long drvr_flag = 0; |
34b02dcd | 3345 | uint32_t word0, ldata; |
dea3101e | 3346 | void __iomem *to_slim; |
58da1ffb JS |
3347 | int processing_queue = 0; |
3348 | ||
3349 | spin_lock_irqsave(&phba->hbalock, drvr_flag); | |
3350 | if (!pmbox) { | |
3351 | /* processing mbox queue from intr_handler */ | |
3352 | processing_queue = 1; | |
3353 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
3354 | pmbox = lpfc_mbox_get(phba); | |
3355 | if (!pmbox) { | |
3356 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
3357 | return MBX_SUCCESS; | |
3358 | } | |
3359 | } | |
dea3101e | 3360 | |
ed957684 | 3361 | if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl && |
92d7f7b0 | 3362 | pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) { |
ed957684 | 3363 | if(!pmbox->vport) { |
58da1ffb | 3364 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
ed957684 | 3365 | lpfc_printf_log(phba, KERN_ERR, |
92d7f7b0 | 3366 | LOG_MBOX | LOG_VPORT, |
e8b62011 | 3367 | "1806 Mbox x%x failed. No vport\n", |
ed957684 JS |
3368 | pmbox->mb.mbxCommand); |
3369 | dump_stack(); | |
58da1ffb | 3370 | goto out_not_finished; |
ed957684 JS |
3371 | } |
3372 | } | |
3373 | ||
8d63f375 | 3374 | /* If the PCI channel is in offline state, do not post mbox. */ |
58da1ffb JS |
3375 | if (unlikely(pci_channel_offline(phba->pcidev))) { |
3376 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
3377 | goto out_not_finished; | |
3378 | } | |
8d63f375 | 3379 | |
a257bf90 JS |
3380 | /* If HBA has a deferred error attention, fail the iocb. */ |
3381 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
3382 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
3383 | goto out_not_finished; | |
3384 | } | |
3385 | ||
dea3101e | 3386 | psli = &phba->sli; |
92d7f7b0 | 3387 | |
dea3101e | 3388 | mb = &pmbox->mb; |
3389 | status = MBX_SUCCESS; | |
3390 | ||
2e0fef85 JS |
3391 | if (phba->link_state == LPFC_HBA_ERROR) { |
3392 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
41415862 JW |
3393 | |
3394 | /* Mbox command <mbxCommand> cannot issue */ | |
7f5f3d0d | 3395 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); |
58da1ffb | 3396 | goto out_not_finished; |
41415862 JW |
3397 | } |
3398 | ||
9290831f JS |
3399 | if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT && |
3400 | !(readl(phba->HCregaddr) & HC_MBINT_ENA)) { | |
2e0fef85 | 3401 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
7f5f3d0d | 3402 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); |
58da1ffb | 3403 | goto out_not_finished; |
9290831f JS |
3404 | } |
3405 | ||
dea3101e | 3406 | if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { |
3407 | /* Polling for a mbox command when another one is already active | |
3408 | * is not allowed in SLI. Also, the driver must have established | |
3409 | * SLI2 mode to queue and process multiple mbox commands. | |
3410 | */ | |
3411 | ||
3412 | if (flag & MBX_POLL) { | |
2e0fef85 | 3413 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 3414 | |
3415 | /* Mbox command <mbxCommand> cannot issue */ | |
92d7f7b0 | 3416 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); |
58da1ffb | 3417 | goto out_not_finished; |
dea3101e | 3418 | } |
3419 | ||
3420 | if (!(psli->sli_flag & LPFC_SLI2_ACTIVE)) { | |
2e0fef85 | 3421 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 3422 | /* Mbox command <mbxCommand> cannot issue */ |
92d7f7b0 | 3423 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); |
58da1ffb | 3424 | goto out_not_finished; |
dea3101e | 3425 | } |
3426 | ||
dea3101e | 3427 | /* Another mailbox command is still being processed, queue this |
3428 | * command to be processed later. | |
3429 | */ | |
3430 | lpfc_mbox_put(phba, pmbox); | |
3431 | ||
3432 | /* Mbox cmd issue - BUSY */ | |
ed957684 | 3433 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
e8b62011 | 3434 | "(%d):0308 Mbox cmd issue - BUSY Data: " |
92d7f7b0 | 3435 | "x%x x%x x%x x%x\n", |
92d7f7b0 JS |
3436 | pmbox->vport ? pmbox->vport->vpi : 0xffffff, |
3437 | mb->mbxCommand, phba->pport->port_state, | |
3438 | psli->sli_flag, flag); | |
dea3101e | 3439 | |
3440 | psli->slistat.mbox_busy++; | |
2e0fef85 | 3441 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 3442 | |
858c9f6c JS |
3443 | if (pmbox->vport) { |
3444 | lpfc_debugfs_disc_trc(pmbox->vport, | |
3445 | LPFC_DISC_TRC_MBOX_VPORT, | |
3446 | "MBOX Bsy vport: cmd:x%x mb:x%x x%x", | |
3447 | (uint32_t)mb->mbxCommand, | |
3448 | mb->un.varWords[0], mb->un.varWords[1]); | |
3449 | } | |
3450 | else { | |
3451 | lpfc_debugfs_disc_trc(phba->pport, | |
3452 | LPFC_DISC_TRC_MBOX, | |
3453 | "MBOX Bsy: cmd:x%x mb:x%x x%x", | |
3454 | (uint32_t)mb->mbxCommand, | |
3455 | mb->un.varWords[0], mb->un.varWords[1]); | |
3456 | } | |
3457 | ||
2e0fef85 | 3458 | return MBX_BUSY; |
dea3101e | 3459 | } |
3460 | ||
dea3101e | 3461 | psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; |
3462 | ||
3463 | /* If we are not polling, we MUST be in SLI2 mode */ | |
3464 | if (flag != MBX_POLL) { | |
41415862 JW |
3465 | if (!(psli->sli_flag & LPFC_SLI2_ACTIVE) && |
3466 | (mb->mbxCommand != MBX_KILL_BOARD)) { | |
dea3101e | 3467 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3468 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 3469 | /* Mbox command <mbxCommand> cannot issue */ |
92d7f7b0 | 3470 | LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag); |
58da1ffb | 3471 | goto out_not_finished; |
dea3101e | 3472 | } |
3473 | /* timeout active mbox command */ | |
a309a6b6 JS |
3474 | mod_timer(&psli->mbox_tmo, (jiffies + |
3475 | (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand)))); | |
dea3101e | 3476 | } |
3477 | ||
3478 | /* Mailbox cmd <cmd> issue */ | |
ed957684 | 3479 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
e8b62011 | 3480 | "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x " |
92d7f7b0 | 3481 | "x%x\n", |
e8b62011 | 3482 | pmbox->vport ? pmbox->vport->vpi : 0, |
92d7f7b0 JS |
3483 | mb->mbxCommand, phba->pport->port_state, |
3484 | psli->sli_flag, flag); | |
dea3101e | 3485 | |
858c9f6c JS |
3486 | if (mb->mbxCommand != MBX_HEARTBEAT) { |
3487 | if (pmbox->vport) { | |
3488 | lpfc_debugfs_disc_trc(pmbox->vport, | |
3489 | LPFC_DISC_TRC_MBOX_VPORT, | |
3490 | "MBOX Send vport: cmd:x%x mb:x%x x%x", | |
3491 | (uint32_t)mb->mbxCommand, | |
3492 | mb->un.varWords[0], mb->un.varWords[1]); | |
3493 | } | |
3494 | else { | |
3495 | lpfc_debugfs_disc_trc(phba->pport, | |
3496 | LPFC_DISC_TRC_MBOX, | |
3497 | "MBOX Send: cmd:x%x mb:x%x x%x", | |
3498 | (uint32_t)mb->mbxCommand, | |
3499 | mb->un.varWords[0], mb->un.varWords[1]); | |
3500 | } | |
3501 | } | |
3502 | ||
dea3101e | 3503 | psli->slistat.mbox_cmd++; |
3504 | evtctr = psli->slistat.mbox_event; | |
3505 | ||
3506 | /* next set own bit for the adapter and copy over command word */ | |
3507 | mb->mbxOwner = OWN_CHIP; | |
3508 | ||
3509 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
dea3101e | 3510 | /* First copy command data to host SLIM area */ |
34b02dcd | 3511 | lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE); |
dea3101e | 3512 | } else { |
9290831f | 3513 | if (mb->mbxCommand == MBX_CONFIG_PORT) { |
dea3101e | 3514 | /* copy command data into host mbox for cmpl */ |
34b02dcd | 3515 | lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE); |
dea3101e | 3516 | } |
3517 | ||
3518 | /* First copy mbox command data to HBA SLIM, skip past first | |
3519 | word */ | |
3520 | to_slim = phba->MBslimaddr + sizeof (uint32_t); | |
3521 | lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0], | |
3522 | MAILBOX_CMD_SIZE - sizeof (uint32_t)); | |
3523 | ||
3524 | /* Next copy over first word, with mbxOwner set */ | |
34b02dcd | 3525 | ldata = *((uint32_t *)mb); |
dea3101e | 3526 | to_slim = phba->MBslimaddr; |
3527 | writel(ldata, to_slim); | |
3528 | readl(to_slim); /* flush */ | |
3529 | ||
3530 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
3531 | /* switch over to host mailbox */ | |
3532 | psli->sli_flag |= LPFC_SLI2_ACTIVE; | |
3533 | } | |
3534 | } | |
3535 | ||
3536 | wmb(); | |
dea3101e | 3537 | |
3538 | switch (flag) { | |
3539 | case MBX_NOWAIT: | |
09372820 | 3540 | /* Set up reference to mailbox command */ |
dea3101e | 3541 | psli->mbox_active = pmbox; |
09372820 JS |
3542 | /* Interrupt board to do it */ |
3543 | writel(CA_MBATT, phba->CAregaddr); | |
3544 | readl(phba->CAregaddr); /* flush */ | |
3545 | /* Don't wait for it to finish, just return */ | |
dea3101e | 3546 | break; |
3547 | ||
3548 | case MBX_POLL: | |
09372820 | 3549 | /* Set up null reference to mailbox command */ |
dea3101e | 3550 | psli->mbox_active = NULL; |
09372820 JS |
3551 | /* Interrupt board to do it */ |
3552 | writel(CA_MBATT, phba->CAregaddr); | |
3553 | readl(phba->CAregaddr); /* flush */ | |
3554 | ||
dea3101e | 3555 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { |
3556 | /* First read mbox status word */ | |
34b02dcd | 3557 | word0 = *((uint32_t *)phba->mbox); |
dea3101e | 3558 | word0 = le32_to_cpu(word0); |
3559 | } else { | |
3560 | /* First read mbox status word */ | |
3561 | word0 = readl(phba->MBslimaddr); | |
3562 | } | |
3563 | ||
3564 | /* Read the HBA Host Attention Register */ | |
3565 | ha_copy = readl(phba->HAregaddr); | |
09372820 JS |
3566 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, |
3567 | mb->mbxCommand) * | |
3568 | 1000) + jiffies; | |
3569 | i = 0; | |
dea3101e | 3570 | /* Wait for command to complete */ |
41415862 JW |
3571 | while (((word0 & OWN_CHIP) == OWN_CHIP) || |
3572 | (!(ha_copy & HA_MBATT) && | |
2e0fef85 | 3573 | (phba->link_state > LPFC_WARM_START))) { |
09372820 | 3574 | if (time_after(jiffies, timeout)) { |
dea3101e | 3575 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3576 | spin_unlock_irqrestore(&phba->hbalock, |
dea3101e | 3577 | drvr_flag); |
58da1ffb | 3578 | goto out_not_finished; |
dea3101e | 3579 | } |
3580 | ||
3581 | /* Check if we took a mbox interrupt while we were | |
3582 | polling */ | |
3583 | if (((word0 & OWN_CHIP) != OWN_CHIP) | |
3584 | && (evtctr != psli->slistat.mbox_event)) | |
3585 | break; | |
3586 | ||
09372820 JS |
3587 | if (i++ > 10) { |
3588 | spin_unlock_irqrestore(&phba->hbalock, | |
3589 | drvr_flag); | |
3590 | msleep(1); | |
3591 | spin_lock_irqsave(&phba->hbalock, drvr_flag); | |
3592 | } | |
dea3101e | 3593 | |
3594 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
3595 | /* First copy command data */ | |
34b02dcd | 3596 | word0 = *((uint32_t *)phba->mbox); |
dea3101e | 3597 | word0 = le32_to_cpu(word0); |
3598 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
3599 | MAILBOX_t *slimmb; | |
34b02dcd | 3600 | uint32_t slimword0; |
dea3101e | 3601 | /* Check real SLIM for any errors */ |
3602 | slimword0 = readl(phba->MBslimaddr); | |
3603 | slimmb = (MAILBOX_t *) & slimword0; | |
3604 | if (((slimword0 & OWN_CHIP) != OWN_CHIP) | |
3605 | && slimmb->mbxStatus) { | |
3606 | psli->sli_flag &= | |
3607 | ~LPFC_SLI2_ACTIVE; | |
3608 | word0 = slimword0; | |
3609 | } | |
3610 | } | |
3611 | } else { | |
3612 | /* First copy command data */ | |
3613 | word0 = readl(phba->MBslimaddr); | |
3614 | } | |
3615 | /* Read the HBA Host Attention Register */ | |
3616 | ha_copy = readl(phba->HAregaddr); | |
3617 | } | |
3618 | ||
3619 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { | |
dea3101e | 3620 | /* copy results back to user */ |
34b02dcd | 3621 | lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE); |
dea3101e | 3622 | } else { |
3623 | /* First copy command data */ | |
3624 | lpfc_memcpy_from_slim(mb, phba->MBslimaddr, | |
3625 | MAILBOX_CMD_SIZE); | |
3626 | if ((mb->mbxCommand == MBX_DUMP_MEMORY) && | |
3627 | pmbox->context2) { | |
92d7f7b0 | 3628 | lpfc_memcpy_from_slim((void *)pmbox->context2, |
dea3101e | 3629 | phba->MBslimaddr + DMP_RSP_OFFSET, |
3630 | mb->un.varDmp.word_cnt); | |
3631 | } | |
3632 | } | |
3633 | ||
3634 | writel(HA_MBATT, phba->HAregaddr); | |
3635 | readl(phba->HAregaddr); /* flush */ | |
3636 | ||
3637 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
3638 | status = mb->mbxStatus; | |
3639 | } | |
3640 | ||
2e0fef85 JS |
3641 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
3642 | return status; | |
58da1ffb JS |
3643 | |
3644 | out_not_finished: | |
3645 | if (processing_queue) { | |
3646 | pmbox->mb.mbxStatus = MBX_NOT_FINISHED; | |
3647 | lpfc_mbox_cmpl_put(phba, pmbox); | |
3648 | } | |
3649 | return MBX_NOT_FINISHED; | |
dea3101e | 3650 | } |
3651 | ||
e59058c4 | 3652 | /** |
3621a710 | 3653 | * __lpfc_sli_ringtx_put - Add an iocb to the txq |
e59058c4 JS |
3654 | * @phba: Pointer to HBA context object. |
3655 | * @pring: Pointer to driver SLI ring object. | |
3656 | * @piocb: Pointer to address of newly added command iocb. | |
3657 | * | |
3658 | * This function is called with hbalock held to add a command | |
3659 | * iocb to the txq when SLI layer cannot submit the command iocb | |
3660 | * to the ring. | |
3661 | **/ | |
858c9f6c | 3662 | static void |
92d7f7b0 | 3663 | __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
2e0fef85 | 3664 | struct lpfc_iocbq *piocb) |
dea3101e | 3665 | { |
3666 | /* Insert the caller's iocb in the txq tail for later processing. */ | |
3667 | list_add_tail(&piocb->list, &pring->txq); | |
3668 | pring->txq_cnt++; | |
dea3101e | 3669 | } |
3670 | ||
e59058c4 | 3671 | /** |
3621a710 | 3672 | * lpfc_sli_next_iocb - Get the next iocb in the txq |
e59058c4 JS |
3673 | * @phba: Pointer to HBA context object. |
3674 | * @pring: Pointer to driver SLI ring object. | |
3675 | * @piocb: Pointer to address of newly added command iocb. | |
3676 | * | |
3677 | * This function is called with hbalock held before a new | |
3678 | * iocb is submitted to the firmware. This function checks | |
3679 | * txq to flush the iocbs in txq to Firmware before | |
3680 | * submitting new iocbs to the Firmware. | |
3681 | * If there are iocbs in the txq which need to be submitted | |
3682 | * to firmware, lpfc_sli_next_iocb returns the first element | |
3683 | * of the txq after dequeuing it from txq. | |
3684 | * If there is no iocb in the txq then the function will return | |
3685 | * *piocb and *piocb is set to NULL. Caller needs to check | |
3686 | * *piocb to find if there are more commands in the txq. | |
3687 | **/ | |
dea3101e | 3688 | static struct lpfc_iocbq * |
3689 | lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2e0fef85 | 3690 | struct lpfc_iocbq **piocb) |
dea3101e | 3691 | { |
3692 | struct lpfc_iocbq * nextiocb; | |
3693 | ||
3694 | nextiocb = lpfc_sli_ringtx_get(phba, pring); | |
3695 | if (!nextiocb) { | |
3696 | nextiocb = *piocb; | |
3697 | *piocb = NULL; | |
3698 | } | |
3699 | ||
3700 | return nextiocb; | |
3701 | } | |
3702 | ||
e59058c4 | 3703 | /** |
3621a710 | 3704 | * __lpfc_sli_issue_iocb - Lockless version of lpfc_sli_issue_iocb |
e59058c4 JS |
3705 | * @phba: Pointer to HBA context object. |
3706 | * @pring: Pointer to driver SLI ring object. | |
3707 | * @piocb: Pointer to command iocb. | |
3708 | * @flag: Flag indicating if this command can be put into txq. | |
3709 | * | |
3710 | * __lpfc_sli_issue_iocb is used by other functions in the driver | |
3711 | * to issue an iocb command to the HBA. If the PCI slot is recovering | |
3712 | * from error state or if HBA is resetting or if LPFC_STOP_IOCB_EVENT | |
3713 | * flag is turned on, the function returns IOCB_ERROR. | |
3714 | * When the link is down, this function allows only iocbs for | |
3715 | * posting buffers. | |
3716 | * This function finds next available slot in the command ring and | |
3717 | * posts the command to the available slot and writes the port | |
3718 | * attention register to request HBA start processing new iocb. | |
3719 | * If there is no slot available in the ring and | |
3720 | * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the | |
3721 | * txq, otherwise the function returns IOCB_BUSY. | |
3722 | * | |
3723 | * This function is called with hbalock held. | |
3724 | * The function will return success after it successfully submit the | |
3725 | * iocb to firmware or after adding to the txq. | |
3726 | **/ | |
98c9ea5c | 3727 | static int |
92d7f7b0 | 3728 | __lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
dea3101e | 3729 | struct lpfc_iocbq *piocb, uint32_t flag) |
3730 | { | |
3731 | struct lpfc_iocbq *nextiocb; | |
3732 | IOCB_t *iocb; | |
3733 | ||
92d7f7b0 JS |
3734 | if (piocb->iocb_cmpl && (!piocb->vport) && |
3735 | (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) && | |
3736 | (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) { | |
3737 | lpfc_printf_log(phba, KERN_ERR, | |
3738 | LOG_SLI | LOG_VPORT, | |
e8b62011 | 3739 | "1807 IOCB x%x failed. No vport\n", |
92d7f7b0 JS |
3740 | piocb->iocb.ulpCommand); |
3741 | dump_stack(); | |
3742 | return IOCB_ERROR; | |
3743 | } | |
3744 | ||
3745 | ||
8d63f375 LV |
3746 | /* If the PCI channel is in offline state, do not post iocbs. */ |
3747 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
3748 | return IOCB_ERROR; | |
3749 | ||
a257bf90 JS |
3750 | /* If HBA has a deferred error attention, fail the iocb. */ |
3751 | if (unlikely(phba->hba_flag & DEFER_ERATT)) | |
3752 | return IOCB_ERROR; | |
3753 | ||
dea3101e | 3754 | /* |
3755 | * We should never get an IOCB if we are in a < LINK_DOWN state | |
3756 | */ | |
2e0fef85 | 3757 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) |
dea3101e | 3758 | return IOCB_ERROR; |
3759 | ||
3760 | /* | |
3761 | * Check to see if we are blocking IOCB processing because of a | |
0b727fea | 3762 | * outstanding event. |
dea3101e | 3763 | */ |
0b727fea | 3764 | if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT)) |
dea3101e | 3765 | goto iocb_busy; |
3766 | ||
2e0fef85 | 3767 | if (unlikely(phba->link_state == LPFC_LINK_DOWN)) { |
dea3101e | 3768 | /* |
2680eeaa | 3769 | * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF |
dea3101e | 3770 | * can be issued if the link is not up. |
3771 | */ | |
3772 | switch (piocb->iocb.ulpCommand) { | |
84774a4d JS |
3773 | case CMD_GEN_REQUEST64_CR: |
3774 | case CMD_GEN_REQUEST64_CX: | |
3775 | if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) || | |
3776 | (piocb->iocb.un.genreq64.w5.hcsw.Rctl != | |
3777 | FC_FCP_CMND) || | |
3778 | (piocb->iocb.un.genreq64.w5.hcsw.Type != | |
3779 | MENLO_TRANSPORT_TYPE)) | |
3780 | ||
3781 | goto iocb_busy; | |
3782 | break; | |
dea3101e | 3783 | case CMD_QUE_RING_BUF_CN: |
3784 | case CMD_QUE_RING_BUF64_CN: | |
dea3101e | 3785 | /* |
3786 | * For IOCBs, like QUE_RING_BUF, that have no rsp ring | |
3787 | * completion, iocb_cmpl MUST be 0. | |
3788 | */ | |
3789 | if (piocb->iocb_cmpl) | |
3790 | piocb->iocb_cmpl = NULL; | |
3791 | /*FALLTHROUGH*/ | |
3792 | case CMD_CREATE_XRI_CR: | |
2680eeaa JS |
3793 | case CMD_CLOSE_XRI_CN: |
3794 | case CMD_CLOSE_XRI_CX: | |
dea3101e | 3795 | break; |
3796 | default: | |
3797 | goto iocb_busy; | |
3798 | } | |
3799 | ||
3800 | /* | |
3801 | * For FCP commands, we must be in a state where we can process link | |
3802 | * attention events. | |
3803 | */ | |
3804 | } else if (unlikely(pring->ringno == phba->sli.fcp_ring && | |
92d7f7b0 | 3805 | !(phba->sli.sli_flag & LPFC_PROCESS_LA))) { |
dea3101e | 3806 | goto iocb_busy; |
92d7f7b0 | 3807 | } |
dea3101e | 3808 | |
dea3101e | 3809 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && |
3810 | (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb))) | |
3811 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
3812 | ||
3813 | if (iocb) | |
3814 | lpfc_sli_update_ring(phba, pring); | |
3815 | else | |
3816 | lpfc_sli_update_full_ring(phba, pring); | |
3817 | ||
3818 | if (!piocb) | |
3819 | return IOCB_SUCCESS; | |
3820 | ||
3821 | goto out_busy; | |
3822 | ||
3823 | iocb_busy: | |
3824 | pring->stats.iocb_cmd_delay++; | |
3825 | ||
3826 | out_busy: | |
3827 | ||
3828 | if (!(flag & SLI_IOCB_RET_IOCB)) { | |
92d7f7b0 | 3829 | __lpfc_sli_ringtx_put(phba, pring, piocb); |
dea3101e | 3830 | return IOCB_SUCCESS; |
3831 | } | |
3832 | ||
3833 | return IOCB_BUSY; | |
3834 | } | |
3835 | ||
92d7f7b0 | 3836 | |
e59058c4 | 3837 | /** |
3621a710 | 3838 | * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb |
e59058c4 JS |
3839 | * @phba: Pointer to HBA context object. |
3840 | * @pring: Pointer to driver SLI ring object. | |
3841 | * @piocb: Pointer to command iocb. | |
3842 | * @flag: Flag indicating if this command can be put into txq. | |
3843 | * | |
3844 | * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb | |
3845 | * function. This function gets the hbalock and calls | |
3846 | * __lpfc_sli_issue_iocb function and will return the error returned | |
3847 | * by __lpfc_sli_issue_iocb function. This wrapper is used by | |
3848 | * functions which do not hold hbalock. | |
3849 | **/ | |
92d7f7b0 JS |
3850 | int |
3851 | lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
3852 | struct lpfc_iocbq *piocb, uint32_t flag) | |
3853 | { | |
3854 | unsigned long iflags; | |
3855 | int rc; | |
3856 | ||
3857 | spin_lock_irqsave(&phba->hbalock, iflags); | |
3858 | rc = __lpfc_sli_issue_iocb(phba, pring, piocb, flag); | |
3859 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
3860 | ||
3861 | return rc; | |
3862 | } | |
3863 | ||
e59058c4 | 3864 | /** |
3621a710 | 3865 | * lpfc_extra_ring_setup - Extra ring setup function |
e59058c4 JS |
3866 | * @phba: Pointer to HBA context object. |
3867 | * | |
3868 | * This function is called while driver attaches with the | |
3869 | * HBA to setup the extra ring. The extra ring is used | |
3870 | * only when driver needs to support target mode functionality | |
3871 | * or IP over FC functionalities. | |
3872 | * | |
3873 | * This function is called with no lock held. | |
3874 | **/ | |
cf5bf97e JW |
3875 | static int |
3876 | lpfc_extra_ring_setup( struct lpfc_hba *phba) | |
3877 | { | |
3878 | struct lpfc_sli *psli; | |
3879 | struct lpfc_sli_ring *pring; | |
3880 | ||
3881 | psli = &phba->sli; | |
3882 | ||
3883 | /* Adjust cmd/rsp ring iocb entries more evenly */ | |
a4bc3379 JS |
3884 | |
3885 | /* Take some away from the FCP ring */ | |
cf5bf97e JW |
3886 | pring = &psli->ring[psli->fcp_ring]; |
3887 | pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
3888 | pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
3889 | pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
3890 | pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
3891 | ||
a4bc3379 JS |
3892 | /* and give them to the extra ring */ |
3893 | pring = &psli->ring[psli->extra_ring]; | |
3894 | ||
cf5bf97e JW |
3895 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; |
3896 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
3897 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
3898 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
3899 | ||
3900 | /* Setup default profile for this ring */ | |
3901 | pring->iotag_max = 4096; | |
3902 | pring->num_mask = 1; | |
3903 | pring->prt[0].profile = 0; /* Mask 0 */ | |
a4bc3379 JS |
3904 | pring->prt[0].rctl = phba->cfg_multi_ring_rctl; |
3905 | pring->prt[0].type = phba->cfg_multi_ring_type; | |
cf5bf97e JW |
3906 | pring->prt[0].lpfc_sli_rcv_unsol_event = NULL; |
3907 | return 0; | |
3908 | } | |
3909 | ||
e59058c4 | 3910 | /** |
3621a710 | 3911 | * lpfc_sli_async_event_handler - ASYNC iocb handler function |
e59058c4 JS |
3912 | * @phba: Pointer to HBA context object. |
3913 | * @pring: Pointer to driver SLI ring object. | |
3914 | * @iocbq: Pointer to iocb object. | |
3915 | * | |
3916 | * This function is called by the slow ring event handler | |
3917 | * function when there is an ASYNC event iocb in the ring. | |
3918 | * This function is called with no lock held. | |
3919 | * Currently this function handles only temperature related | |
3920 | * ASYNC events. The function decodes the temperature sensor | |
3921 | * event message and posts events for the management applications. | |
3922 | **/ | |
98c9ea5c | 3923 | static void |
57127f15 JS |
3924 | lpfc_sli_async_event_handler(struct lpfc_hba * phba, |
3925 | struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq) | |
3926 | { | |
3927 | IOCB_t *icmd; | |
3928 | uint16_t evt_code; | |
3929 | uint16_t temp; | |
3930 | struct temp_event temp_event_data; | |
3931 | struct Scsi_Host *shost; | |
a257bf90 | 3932 | uint32_t *iocb_w; |
57127f15 JS |
3933 | |
3934 | icmd = &iocbq->iocb; | |
3935 | evt_code = icmd->un.asyncstat.evt_code; | |
3936 | temp = icmd->ulpContext; | |
3937 | ||
3938 | if ((evt_code != ASYNC_TEMP_WARN) && | |
3939 | (evt_code != ASYNC_TEMP_SAFE)) { | |
a257bf90 | 3940 | iocb_w = (uint32_t *) icmd; |
57127f15 JS |
3941 | lpfc_printf_log(phba, |
3942 | KERN_ERR, | |
3943 | LOG_SLI, | |
76bb24ef | 3944 | "0346 Ring %d handler: unexpected ASYNC_STATUS" |
a257bf90 JS |
3945 | " evt_code 0x%x \n" |
3946 | "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n" | |
3947 | "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n" | |
3948 | "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n" | |
3949 | "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n", | |
57127f15 | 3950 | pring->ringno, |
a257bf90 JS |
3951 | icmd->un.asyncstat.evt_code, |
3952 | iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3], | |
3953 | iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7], | |
3954 | iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11], | |
3955 | iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]); | |
3956 | ||
57127f15 JS |
3957 | return; |
3958 | } | |
3959 | temp_event_data.data = (uint32_t)temp; | |
3960 | temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; | |
3961 | if (evt_code == ASYNC_TEMP_WARN) { | |
3962 | temp_event_data.event_code = LPFC_THRESHOLD_TEMP; | |
3963 | lpfc_printf_log(phba, | |
09372820 | 3964 | KERN_ERR, |
57127f15 | 3965 | LOG_TEMP, |
76bb24ef | 3966 | "0347 Adapter is very hot, please take " |
57127f15 JS |
3967 | "corrective action. temperature : %d Celsius\n", |
3968 | temp); | |
3969 | } | |
3970 | if (evt_code == ASYNC_TEMP_SAFE) { | |
3971 | temp_event_data.event_code = LPFC_NORMAL_TEMP; | |
3972 | lpfc_printf_log(phba, | |
09372820 | 3973 | KERN_ERR, |
57127f15 JS |
3974 | LOG_TEMP, |
3975 | "0340 Adapter temperature is OK now. " | |
3976 | "temperature : %d Celsius\n", | |
3977 | temp); | |
3978 | } | |
3979 | ||
3980 | /* Send temperature change event to applications */ | |
3981 | shost = lpfc_shost_from_vport(phba->pport); | |
3982 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
3983 | sizeof(temp_event_data), (char *) &temp_event_data, | |
ddcc50f0 | 3984 | LPFC_NL_VENDOR_ID); |
57127f15 JS |
3985 | |
3986 | } | |
3987 | ||
3988 | ||
e59058c4 | 3989 | /** |
3621a710 | 3990 | * lpfc_sli_setup - SLI ring setup function |
e59058c4 JS |
3991 | * @phba: Pointer to HBA context object. |
3992 | * | |
3993 | * lpfc_sli_setup sets up rings of the SLI interface with | |
3994 | * number of iocbs per ring and iotags. This function is | |
3995 | * called while driver attach to the HBA and before the | |
3996 | * interrupts are enabled. So there is no need for locking. | |
3997 | * | |
3998 | * This function always returns 0. | |
3999 | **/ | |
dea3101e | 4000 | int |
4001 | lpfc_sli_setup(struct lpfc_hba *phba) | |
4002 | { | |
ed957684 | 4003 | int i, totiocbsize = 0; |
dea3101e | 4004 | struct lpfc_sli *psli = &phba->sli; |
4005 | struct lpfc_sli_ring *pring; | |
4006 | ||
4007 | psli->num_rings = MAX_CONFIGURED_RINGS; | |
4008 | psli->sli_flag = 0; | |
4009 | psli->fcp_ring = LPFC_FCP_RING; | |
4010 | psli->next_ring = LPFC_FCP_NEXT_RING; | |
a4bc3379 | 4011 | psli->extra_ring = LPFC_EXTRA_RING; |
dea3101e | 4012 | |
604a3e30 JB |
4013 | psli->iocbq_lookup = NULL; |
4014 | psli->iocbq_lookup_len = 0; | |
4015 | psli->last_iotag = 0; | |
4016 | ||
dea3101e | 4017 | for (i = 0; i < psli->num_rings; i++) { |
4018 | pring = &psli->ring[i]; | |
4019 | switch (i) { | |
4020 | case LPFC_FCP_RING: /* ring 0 - FCP */ | |
4021 | /* numCiocb and numRiocb are used in config_port */ | |
4022 | pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES; | |
4023 | pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES; | |
4024 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
4025 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
4026 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
4027 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
ed957684 | 4028 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
4029 | SLI3_IOCB_CMD_SIZE : |
4030 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 4031 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
4032 | SLI3_IOCB_RSP_SIZE : |
4033 | SLI2_IOCB_RSP_SIZE; | |
dea3101e | 4034 | pring->iotag_ctr = 0; |
4035 | pring->iotag_max = | |
92d7f7b0 | 4036 | (phba->cfg_hba_queue_depth * 2); |
dea3101e | 4037 | pring->fast_iotag = pring->iotag_max; |
4038 | pring->num_mask = 0; | |
4039 | break; | |
a4bc3379 | 4040 | case LPFC_EXTRA_RING: /* ring 1 - EXTRA */ |
dea3101e | 4041 | /* numCiocb and numRiocb are used in config_port */ |
4042 | pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES; | |
4043 | pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES; | |
ed957684 | 4044 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
4045 | SLI3_IOCB_CMD_SIZE : |
4046 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 4047 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
4048 | SLI3_IOCB_RSP_SIZE : |
4049 | SLI2_IOCB_RSP_SIZE; | |
2e0fef85 | 4050 | pring->iotag_max = phba->cfg_hba_queue_depth; |
dea3101e | 4051 | pring->num_mask = 0; |
4052 | break; | |
4053 | case LPFC_ELS_RING: /* ring 2 - ELS / CT */ | |
4054 | /* numCiocb and numRiocb are used in config_port */ | |
4055 | pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES; | |
4056 | pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES; | |
ed957684 | 4057 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
4058 | SLI3_IOCB_CMD_SIZE : |
4059 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 4060 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
4061 | SLI3_IOCB_RSP_SIZE : |
4062 | SLI2_IOCB_RSP_SIZE; | |
dea3101e | 4063 | pring->fast_iotag = 0; |
4064 | pring->iotag_ctr = 0; | |
4065 | pring->iotag_max = 4096; | |
57127f15 JS |
4066 | pring->lpfc_sli_rcv_async_status = |
4067 | lpfc_sli_async_event_handler; | |
dea3101e | 4068 | pring->num_mask = 4; |
4069 | pring->prt[0].profile = 0; /* Mask 0 */ | |
4070 | pring->prt[0].rctl = FC_ELS_REQ; | |
4071 | pring->prt[0].type = FC_ELS_DATA; | |
4072 | pring->prt[0].lpfc_sli_rcv_unsol_event = | |
92d7f7b0 | 4073 | lpfc_els_unsol_event; |
dea3101e | 4074 | pring->prt[1].profile = 0; /* Mask 1 */ |
4075 | pring->prt[1].rctl = FC_ELS_RSP; | |
4076 | pring->prt[1].type = FC_ELS_DATA; | |
4077 | pring->prt[1].lpfc_sli_rcv_unsol_event = | |
92d7f7b0 | 4078 | lpfc_els_unsol_event; |
dea3101e | 4079 | pring->prt[2].profile = 0; /* Mask 2 */ |
4080 | /* NameServer Inquiry */ | |
4081 | pring->prt[2].rctl = FC_UNSOL_CTL; | |
4082 | /* NameServer */ | |
4083 | pring->prt[2].type = FC_COMMON_TRANSPORT_ULP; | |
4084 | pring->prt[2].lpfc_sli_rcv_unsol_event = | |
92d7f7b0 | 4085 | lpfc_ct_unsol_event; |
dea3101e | 4086 | pring->prt[3].profile = 0; /* Mask 3 */ |
4087 | /* NameServer response */ | |
4088 | pring->prt[3].rctl = FC_SOL_CTL; | |
4089 | /* NameServer */ | |
4090 | pring->prt[3].type = FC_COMMON_TRANSPORT_ULP; | |
4091 | pring->prt[3].lpfc_sli_rcv_unsol_event = | |
92d7f7b0 | 4092 | lpfc_ct_unsol_event; |
dea3101e | 4093 | break; |
4094 | } | |
ed957684 | 4095 | totiocbsize += (pring->numCiocb * pring->sizeCiocb) + |
92d7f7b0 | 4096 | (pring->numRiocb * pring->sizeRiocb); |
dea3101e | 4097 | } |
ed957684 | 4098 | if (totiocbsize > MAX_SLIM_IOCB_SIZE) { |
dea3101e | 4099 | /* Too many cmd / rsp ring entries in SLI2 SLIM */ |
e8b62011 JS |
4100 | printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in " |
4101 | "SLI2 SLIM Data: x%x x%lx\n", | |
4102 | phba->brd_no, totiocbsize, | |
4103 | (unsigned long) MAX_SLIM_IOCB_SIZE); | |
dea3101e | 4104 | } |
cf5bf97e JW |
4105 | if (phba->cfg_multi_ring_support == 2) |
4106 | lpfc_extra_ring_setup(phba); | |
dea3101e | 4107 | |
4108 | return 0; | |
4109 | } | |
4110 | ||
e59058c4 | 4111 | /** |
3621a710 | 4112 | * lpfc_sli_queue_setup - Queue initialization function |
e59058c4 JS |
4113 | * @phba: Pointer to HBA context object. |
4114 | * | |
4115 | * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each | |
4116 | * ring. This function also initializes ring indices of each ring. | |
4117 | * This function is called during the initialization of the SLI | |
4118 | * interface of an HBA. | |
4119 | * This function is called with no lock held and always returns | |
4120 | * 1. | |
4121 | **/ | |
dea3101e | 4122 | int |
2e0fef85 | 4123 | lpfc_sli_queue_setup(struct lpfc_hba *phba) |
dea3101e | 4124 | { |
4125 | struct lpfc_sli *psli; | |
4126 | struct lpfc_sli_ring *pring; | |
604a3e30 | 4127 | int i; |
dea3101e | 4128 | |
4129 | psli = &phba->sli; | |
2e0fef85 | 4130 | spin_lock_irq(&phba->hbalock); |
dea3101e | 4131 | INIT_LIST_HEAD(&psli->mboxq); |
92d7f7b0 | 4132 | INIT_LIST_HEAD(&psli->mboxq_cmpl); |
dea3101e | 4133 | /* Initialize list headers for txq and txcmplq as double linked lists */ |
4134 | for (i = 0; i < psli->num_rings; i++) { | |
4135 | pring = &psli->ring[i]; | |
4136 | pring->ringno = i; | |
4137 | pring->next_cmdidx = 0; | |
4138 | pring->local_getidx = 0; | |
4139 | pring->cmdidx = 0; | |
4140 | INIT_LIST_HEAD(&pring->txq); | |
4141 | INIT_LIST_HEAD(&pring->txcmplq); | |
4142 | INIT_LIST_HEAD(&pring->iocb_continueq); | |
9c2face6 | 4143 | INIT_LIST_HEAD(&pring->iocb_continue_saveq); |
dea3101e | 4144 | INIT_LIST_HEAD(&pring->postbufq); |
dea3101e | 4145 | } |
2e0fef85 JS |
4146 | spin_unlock_irq(&phba->hbalock); |
4147 | return 1; | |
dea3101e | 4148 | } |
4149 | ||
e59058c4 | 4150 | /** |
3621a710 | 4151 | * lpfc_sli_host_down - Vport cleanup function |
e59058c4 JS |
4152 | * @vport: Pointer to virtual port object. |
4153 | * | |
4154 | * lpfc_sli_host_down is called to clean up the resources | |
4155 | * associated with a vport before destroying virtual | |
4156 | * port data structures. | |
4157 | * This function does following operations: | |
4158 | * - Free discovery resources associated with this virtual | |
4159 | * port. | |
4160 | * - Free iocbs associated with this virtual port in | |
4161 | * the txq. | |
4162 | * - Send abort for all iocb commands associated with this | |
4163 | * vport in txcmplq. | |
4164 | * | |
4165 | * This function is called with no lock held and always returns 1. | |
4166 | **/ | |
92d7f7b0 JS |
4167 | int |
4168 | lpfc_sli_host_down(struct lpfc_vport *vport) | |
4169 | { | |
858c9f6c | 4170 | LIST_HEAD(completions); |
92d7f7b0 JS |
4171 | struct lpfc_hba *phba = vport->phba; |
4172 | struct lpfc_sli *psli = &phba->sli; | |
4173 | struct lpfc_sli_ring *pring; | |
4174 | struct lpfc_iocbq *iocb, *next_iocb; | |
92d7f7b0 JS |
4175 | int i; |
4176 | unsigned long flags = 0; | |
4177 | uint16_t prev_pring_flag; | |
4178 | ||
4179 | lpfc_cleanup_discovery_resources(vport); | |
4180 | ||
4181 | spin_lock_irqsave(&phba->hbalock, flags); | |
92d7f7b0 JS |
4182 | for (i = 0; i < psli->num_rings; i++) { |
4183 | pring = &psli->ring[i]; | |
4184 | prev_pring_flag = pring->flag; | |
5e9d9b82 JS |
4185 | /* Only slow rings */ |
4186 | if (pring->ringno == LPFC_ELS_RING) { | |
858c9f6c | 4187 | pring->flag |= LPFC_DEFERRED_RING_EVENT; |
5e9d9b82 JS |
4188 | /* Set the lpfc data pending flag */ |
4189 | set_bit(LPFC_DATA_READY, &phba->data_flags); | |
4190 | } | |
92d7f7b0 JS |
4191 | /* |
4192 | * Error everything on the txq since these iocbs have not been | |
4193 | * given to the FW yet. | |
4194 | */ | |
92d7f7b0 JS |
4195 | list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { |
4196 | if (iocb->vport != vport) | |
4197 | continue; | |
858c9f6c | 4198 | list_move_tail(&iocb->list, &completions); |
92d7f7b0 | 4199 | pring->txq_cnt--; |
92d7f7b0 JS |
4200 | } |
4201 | ||
4202 | /* Next issue ABTS for everything on the txcmplq */ | |
4203 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, | |
4204 | list) { | |
4205 | if (iocb->vport != vport) | |
4206 | continue; | |
4207 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); | |
4208 | } | |
4209 | ||
4210 | pring->flag = prev_pring_flag; | |
4211 | } | |
4212 | ||
4213 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
4214 | ||
a257bf90 JS |
4215 | /* Cancel all the IOCBs from the completions list */ |
4216 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
4217 | IOERR_SLI_DOWN); | |
92d7f7b0 JS |
4218 | return 1; |
4219 | } | |
4220 | ||
e59058c4 | 4221 | /** |
3621a710 | 4222 | * lpfc_sli_hba_down - Resource cleanup function for the HBA |
e59058c4 JS |
4223 | * @phba: Pointer to HBA context object. |
4224 | * | |
4225 | * This function cleans up all iocb, buffers, mailbox commands | |
4226 | * while shutting down the HBA. This function is called with no | |
4227 | * lock held and always returns 1. | |
4228 | * This function does the following to cleanup driver resources: | |
4229 | * - Free discovery resources for each virtual port | |
4230 | * - Cleanup any pending fabric iocbs | |
4231 | * - Iterate through the iocb txq and free each entry | |
4232 | * in the list. | |
4233 | * - Free up any buffer posted to the HBA | |
4234 | * - Free mailbox commands in the mailbox queue. | |
4235 | **/ | |
dea3101e | 4236 | int |
2e0fef85 | 4237 | lpfc_sli_hba_down(struct lpfc_hba *phba) |
dea3101e | 4238 | { |
2534ba75 | 4239 | LIST_HEAD(completions); |
2e0fef85 | 4240 | struct lpfc_sli *psli = &phba->sli; |
dea3101e | 4241 | struct lpfc_sli_ring *pring; |
0ff10d46 | 4242 | struct lpfc_dmabuf *buf_ptr; |
dea3101e | 4243 | LPFC_MBOXQ_t *pmb; |
dea3101e | 4244 | int i; |
4245 | unsigned long flags = 0; | |
4246 | ||
dea3101e | 4247 | lpfc_hba_down_prep(phba); |
4248 | ||
92d7f7b0 JS |
4249 | lpfc_fabric_abort_hba(phba); |
4250 | ||
2e0fef85 | 4251 | spin_lock_irqsave(&phba->hbalock, flags); |
dea3101e | 4252 | for (i = 0; i < psli->num_rings; i++) { |
4253 | pring = &psli->ring[i]; | |
5e9d9b82 JS |
4254 | /* Only slow rings */ |
4255 | if (pring->ringno == LPFC_ELS_RING) { | |
858c9f6c | 4256 | pring->flag |= LPFC_DEFERRED_RING_EVENT; |
5e9d9b82 JS |
4257 | /* Set the lpfc data pending flag */ |
4258 | set_bit(LPFC_DATA_READY, &phba->data_flags); | |
4259 | } | |
dea3101e | 4260 | |
4261 | /* | |
4262 | * Error everything on the txq since these iocbs have not been | |
4263 | * given to the FW yet. | |
4264 | */ | |
2534ba75 | 4265 | list_splice_init(&pring->txq, &completions); |
dea3101e | 4266 | pring->txq_cnt = 0; |
4267 | ||
2534ba75 | 4268 | } |
2e0fef85 | 4269 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e | 4270 | |
a257bf90 JS |
4271 | /* Cancel all the IOCBs from the completions list */ |
4272 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
4273 | IOERR_SLI_DOWN); | |
dea3101e | 4274 | |
0ff10d46 JS |
4275 | spin_lock_irqsave(&phba->hbalock, flags); |
4276 | list_splice_init(&phba->elsbuf, &completions); | |
4277 | phba->elsbuf_cnt = 0; | |
4278 | phba->elsbuf_prev_cnt = 0; | |
4279 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
4280 | ||
4281 | while (!list_empty(&completions)) { | |
4282 | list_remove_head(&completions, buf_ptr, | |
4283 | struct lpfc_dmabuf, list); | |
4284 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
4285 | kfree(buf_ptr); | |
4286 | } | |
4287 | ||
dea3101e | 4288 | /* Return any active mbox cmds */ |
4289 | del_timer_sync(&psli->mbox_tmo); | |
92d7f7b0 | 4290 | spin_lock_irqsave(&phba->hbalock, flags); |
2e0fef85 | 4291 | |
92d7f7b0 | 4292 | spin_lock(&phba->pport->work_port_lock); |
2e0fef85 | 4293 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; |
92d7f7b0 | 4294 | spin_unlock(&phba->pport->work_port_lock); |
2e0fef85 | 4295 | |
97eab634 JS |
4296 | /* Return any pending or completed mbox cmds */ |
4297 | list_splice_init(&phba->sli.mboxq, &completions); | |
92d7f7b0 JS |
4298 | if (psli->mbox_active) { |
4299 | list_add_tail(&psli->mbox_active->list, &completions); | |
2e0fef85 | 4300 | psli->mbox_active = NULL; |
2e0fef85 | 4301 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
dea3101e | 4302 | } |
92d7f7b0 | 4303 | list_splice_init(&phba->sli.mboxq_cmpl, &completions); |
92d7f7b0 JS |
4304 | spin_unlock_irqrestore(&phba->hbalock, flags); |
4305 | ||
4306 | while (!list_empty(&completions)) { | |
4307 | list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list); | |
dea3101e | 4308 | pmb->mb.mbxStatus = MBX_NOT_FINISHED; |
97eab634 | 4309 | if (pmb->mbox_cmpl) |
dea3101e | 4310 | pmb->mbox_cmpl(phba,pmb); |
dea3101e | 4311 | } |
dea3101e | 4312 | return 1; |
4313 | } | |
4314 | ||
e59058c4 | 4315 | /** |
3621a710 | 4316 | * lpfc_sli_pcimem_bcopy - SLI memory copy function |
e59058c4 JS |
4317 | * @srcp: Source memory pointer. |
4318 | * @destp: Destination memory pointer. | |
4319 | * @cnt: Number of words required to be copied. | |
4320 | * | |
4321 | * This function is used for copying data between driver memory | |
4322 | * and the SLI memory. This function also changes the endianness | |
4323 | * of each word if native endianness is different from SLI | |
4324 | * endianness. This function can be called with or without | |
4325 | * lock. | |
4326 | **/ | |
dea3101e | 4327 | void |
4328 | lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt) | |
4329 | { | |
4330 | uint32_t *src = srcp; | |
4331 | uint32_t *dest = destp; | |
4332 | uint32_t ldata; | |
4333 | int i; | |
4334 | ||
4335 | for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) { | |
4336 | ldata = *src; | |
4337 | ldata = le32_to_cpu(ldata); | |
4338 | *dest = ldata; | |
4339 | src++; | |
4340 | dest++; | |
4341 | } | |
4342 | } | |
4343 | ||
e59058c4 JS |
4344 | |
4345 | /** | |
3621a710 | 4346 | * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq |
e59058c4 JS |
4347 | * @phba: Pointer to HBA context object. |
4348 | * @pring: Pointer to driver SLI ring object. | |
4349 | * @mp: Pointer to driver buffer object. | |
4350 | * | |
4351 | * This function is called with no lock held. | |
4352 | * It always return zero after adding the buffer to the postbufq | |
4353 | * buffer list. | |
4354 | **/ | |
dea3101e | 4355 | int |
2e0fef85 JS |
4356 | lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
4357 | struct lpfc_dmabuf *mp) | |
dea3101e | 4358 | { |
4359 | /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up | |
4360 | later */ | |
2e0fef85 | 4361 | spin_lock_irq(&phba->hbalock); |
dea3101e | 4362 | list_add_tail(&mp->list, &pring->postbufq); |
dea3101e | 4363 | pring->postbufq_cnt++; |
2e0fef85 | 4364 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 4365 | return 0; |
4366 | } | |
4367 | ||
e59058c4 | 4368 | /** |
3621a710 | 4369 | * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer |
e59058c4 JS |
4370 | * @phba: Pointer to HBA context object. |
4371 | * | |
4372 | * When HBQ is enabled, buffers are searched based on tags. This function | |
4373 | * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The | |
4374 | * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag | |
4375 | * does not conflict with tags of buffer posted for unsolicited events. | |
4376 | * The function returns the allocated tag. The function is called with | |
4377 | * no locks held. | |
4378 | **/ | |
76bb24ef JS |
4379 | uint32_t |
4380 | lpfc_sli_get_buffer_tag(struct lpfc_hba *phba) | |
4381 | { | |
4382 | spin_lock_irq(&phba->hbalock); | |
4383 | phba->buffer_tag_count++; | |
4384 | /* | |
4385 | * Always set the QUE_BUFTAG_BIT to distiguish between | |
4386 | * a tag assigned by HBQ. | |
4387 | */ | |
4388 | phba->buffer_tag_count |= QUE_BUFTAG_BIT; | |
4389 | spin_unlock_irq(&phba->hbalock); | |
4390 | return phba->buffer_tag_count; | |
4391 | } | |
4392 | ||
e59058c4 | 4393 | /** |
3621a710 | 4394 | * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag |
e59058c4 JS |
4395 | * @phba: Pointer to HBA context object. |
4396 | * @pring: Pointer to driver SLI ring object. | |
4397 | * @tag: Buffer tag. | |
4398 | * | |
4399 | * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq | |
4400 | * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX | |
4401 | * iocb is posted to the response ring with the tag of the buffer. | |
4402 | * This function searches the pring->postbufq list using the tag | |
4403 | * to find buffer associated with CMD_IOCB_RET_XRI64_CX | |
4404 | * iocb. If the buffer is found then lpfc_dmabuf object of the | |
4405 | * buffer is returned to the caller else NULL is returned. | |
4406 | * This function is called with no lock held. | |
4407 | **/ | |
76bb24ef JS |
4408 | struct lpfc_dmabuf * |
4409 | lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
4410 | uint32_t tag) | |
4411 | { | |
4412 | struct lpfc_dmabuf *mp, *next_mp; | |
4413 | struct list_head *slp = &pring->postbufq; | |
4414 | ||
4415 | /* Search postbufq, from the begining, looking for a match on tag */ | |
4416 | spin_lock_irq(&phba->hbalock); | |
4417 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { | |
4418 | if (mp->buffer_tag == tag) { | |
4419 | list_del_init(&mp->list); | |
4420 | pring->postbufq_cnt--; | |
4421 | spin_unlock_irq(&phba->hbalock); | |
4422 | return mp; | |
4423 | } | |
4424 | } | |
4425 | ||
4426 | spin_unlock_irq(&phba->hbalock); | |
4427 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
d7c255b2 | 4428 | "0402 Cannot find virtual addr for buffer tag on " |
76bb24ef JS |
4429 | "ring %d Data x%lx x%p x%p x%x\n", |
4430 | pring->ringno, (unsigned long) tag, | |
4431 | slp->next, slp->prev, pring->postbufq_cnt); | |
4432 | ||
4433 | return NULL; | |
4434 | } | |
dea3101e | 4435 | |
e59058c4 | 4436 | /** |
3621a710 | 4437 | * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events |
e59058c4 JS |
4438 | * @phba: Pointer to HBA context object. |
4439 | * @pring: Pointer to driver SLI ring object. | |
4440 | * @phys: DMA address of the buffer. | |
4441 | * | |
4442 | * This function searches the buffer list using the dma_address | |
4443 | * of unsolicited event to find the driver's lpfc_dmabuf object | |
4444 | * corresponding to the dma_address. The function returns the | |
4445 | * lpfc_dmabuf object if a buffer is found else it returns NULL. | |
4446 | * This function is called by the ct and els unsolicited event | |
4447 | * handlers to get the buffer associated with the unsolicited | |
4448 | * event. | |
4449 | * | |
4450 | * This function is called with no lock held. | |
4451 | **/ | |
dea3101e | 4452 | struct lpfc_dmabuf * |
4453 | lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
4454 | dma_addr_t phys) | |
4455 | { | |
4456 | struct lpfc_dmabuf *mp, *next_mp; | |
4457 | struct list_head *slp = &pring->postbufq; | |
4458 | ||
4459 | /* Search postbufq, from the begining, looking for a match on phys */ | |
2e0fef85 | 4460 | spin_lock_irq(&phba->hbalock); |
dea3101e | 4461 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { |
4462 | if (mp->phys == phys) { | |
4463 | list_del_init(&mp->list); | |
4464 | pring->postbufq_cnt--; | |
2e0fef85 | 4465 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 4466 | return mp; |
4467 | } | |
4468 | } | |
4469 | ||
2e0fef85 | 4470 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 4471 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 4472 | "0410 Cannot find virtual addr for mapped buf on " |
dea3101e | 4473 | "ring %d Data x%llx x%p x%p x%x\n", |
e8b62011 | 4474 | pring->ringno, (unsigned long long)phys, |
dea3101e | 4475 | slp->next, slp->prev, pring->postbufq_cnt); |
4476 | return NULL; | |
4477 | } | |
4478 | ||
e59058c4 | 4479 | /** |
3621a710 | 4480 | * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs |
e59058c4 JS |
4481 | * @phba: Pointer to HBA context object. |
4482 | * @cmdiocb: Pointer to driver command iocb object. | |
4483 | * @rspiocb: Pointer to driver response iocb object. | |
4484 | * | |
4485 | * This function is the completion handler for the abort iocbs for | |
4486 | * ELS commands. This function is called from the ELS ring event | |
4487 | * handler with no lock held. This function frees memory resources | |
4488 | * associated with the abort iocb. | |
4489 | **/ | |
dea3101e | 4490 | static void |
2e0fef85 JS |
4491 | lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
4492 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 4493 | { |
2e0fef85 | 4494 | IOCB_t *irsp = &rspiocb->iocb; |
2680eeaa | 4495 | uint16_t abort_iotag, abort_context; |
92d7f7b0 | 4496 | struct lpfc_iocbq *abort_iocb; |
2680eeaa JS |
4497 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
4498 | ||
4499 | abort_iocb = NULL; | |
2680eeaa JS |
4500 | |
4501 | if (irsp->ulpStatus) { | |
4502 | abort_context = cmdiocb->iocb.un.acxri.abortContextTag; | |
4503 | abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag; | |
4504 | ||
2e0fef85 | 4505 | spin_lock_irq(&phba->hbalock); |
2680eeaa JS |
4506 | if (abort_iotag != 0 && abort_iotag <= phba->sli.last_iotag) |
4507 | abort_iocb = phba->sli.iocbq_lookup[abort_iotag]; | |
4508 | ||
92d7f7b0 | 4509 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS | LOG_SLI, |
e8b62011 | 4510 | "0327 Cannot abort els iocb %p " |
92d7f7b0 JS |
4511 | "with tag %x context %x, abort status %x, " |
4512 | "abort code %x\n", | |
e8b62011 JS |
4513 | abort_iocb, abort_iotag, abort_context, |
4514 | irsp->ulpStatus, irsp->un.ulpWord[4]); | |
2680eeaa | 4515 | |
58da1ffb JS |
4516 | /* |
4517 | * If the iocb is not found in Firmware queue the iocb | |
4518 | * might have completed already. Do not free it again. | |
4519 | */ | |
9b379605 | 4520 | if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) { |
58da1ffb JS |
4521 | spin_unlock_irq(&phba->hbalock); |
4522 | lpfc_sli_release_iocbq(phba, cmdiocb); | |
4523 | return; | |
4524 | } | |
2680eeaa JS |
4525 | /* |
4526 | * make sure we have the right iocbq before taking it | |
4527 | * off the txcmplq and try to call completion routine. | |
4528 | */ | |
2e0fef85 JS |
4529 | if (!abort_iocb || |
4530 | abort_iocb->iocb.ulpContext != abort_context || | |
4531 | (abort_iocb->iocb_flag & LPFC_DRIVER_ABORTED) == 0) | |
4532 | spin_unlock_irq(&phba->hbalock); | |
4533 | else { | |
92d7f7b0 | 4534 | list_del_init(&abort_iocb->list); |
2680eeaa | 4535 | pring->txcmplq_cnt--; |
2e0fef85 | 4536 | spin_unlock_irq(&phba->hbalock); |
2680eeaa | 4537 | |
0ff10d46 JS |
4538 | /* Firmware could still be in progress of DMAing |
4539 | * payload, so don't free data buffer till after | |
4540 | * a hbeat. | |
4541 | */ | |
4542 | abort_iocb->iocb_flag |= LPFC_DELAY_MEM_FREE; | |
4543 | ||
92d7f7b0 JS |
4544 | abort_iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED; |
4545 | abort_iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT; | |
4546 | abort_iocb->iocb.un.ulpWord[4] = IOERR_SLI_ABORTED; | |
4547 | (abort_iocb->iocb_cmpl)(phba, abort_iocb, abort_iocb); | |
2680eeaa JS |
4548 | } |
4549 | } | |
4550 | ||
604a3e30 | 4551 | lpfc_sli_release_iocbq(phba, cmdiocb); |
dea3101e | 4552 | return; |
4553 | } | |
4554 | ||
e59058c4 | 4555 | /** |
3621a710 | 4556 | * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command |
e59058c4 JS |
4557 | * @phba: Pointer to HBA context object. |
4558 | * @cmdiocb: Pointer to driver command iocb object. | |
4559 | * @rspiocb: Pointer to driver response iocb object. | |
4560 | * | |
4561 | * The function is called from SLI ring event handler with no | |
4562 | * lock held. This function is the completion handler for ELS commands | |
4563 | * which are aborted. The function frees memory resources used for | |
4564 | * the aborted ELS commands. | |
4565 | **/ | |
92d7f7b0 JS |
4566 | static void |
4567 | lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
4568 | struct lpfc_iocbq *rspiocb) | |
4569 | { | |
4570 | IOCB_t *irsp = &rspiocb->iocb; | |
4571 | ||
4572 | /* ELS cmd tag <ulpIoTag> completes */ | |
4573 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
d7c255b2 | 4574 | "0139 Ignoring ELS cmd tag x%x completion Data: " |
92d7f7b0 | 4575 | "x%x x%x x%x\n", |
e8b62011 | 4576 | irsp->ulpIoTag, irsp->ulpStatus, |
92d7f7b0 | 4577 | irsp->un.ulpWord[4], irsp->ulpTimeout); |
858c9f6c JS |
4578 | if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) |
4579 | lpfc_ct_free_iocb(phba, cmdiocb); | |
4580 | else | |
4581 | lpfc_els_free_iocb(phba, cmdiocb); | |
92d7f7b0 JS |
4582 | return; |
4583 | } | |
4584 | ||
e59058c4 | 4585 | /** |
3621a710 | 4586 | * lpfc_sli_issue_abort_iotag - Abort function for a command iocb |
e59058c4 JS |
4587 | * @phba: Pointer to HBA context object. |
4588 | * @pring: Pointer to driver SLI ring object. | |
4589 | * @cmdiocb: Pointer to driver command iocb object. | |
4590 | * | |
4591 | * This function issues an abort iocb for the provided command | |
4592 | * iocb. This function is called with hbalock held. | |
4593 | * The function returns 0 when it fails due to memory allocation | |
4594 | * failure or when the command iocb is an abort request. | |
4595 | **/ | |
dea3101e | 4596 | int |
2e0fef85 JS |
4597 | lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
4598 | struct lpfc_iocbq *cmdiocb) | |
dea3101e | 4599 | { |
2e0fef85 | 4600 | struct lpfc_vport *vport = cmdiocb->vport; |
0bd4ca25 | 4601 | struct lpfc_iocbq *abtsiocbp; |
dea3101e | 4602 | IOCB_t *icmd = NULL; |
4603 | IOCB_t *iabt = NULL; | |
07951076 JS |
4604 | int retval = IOCB_ERROR; |
4605 | ||
92d7f7b0 JS |
4606 | /* |
4607 | * There are certain command types we don't want to abort. And we | |
4608 | * don't want to abort commands that are already in the process of | |
4609 | * being aborted. | |
07951076 JS |
4610 | */ |
4611 | icmd = &cmdiocb->iocb; | |
2e0fef85 | 4612 | if (icmd->ulpCommand == CMD_ABORT_XRI_CN || |
92d7f7b0 JS |
4613 | icmd->ulpCommand == CMD_CLOSE_XRI_CN || |
4614 | (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0) | |
07951076 JS |
4615 | return 0; |
4616 | ||
858c9f6c JS |
4617 | /* If we're unloading, don't abort iocb on the ELS ring, but change the |
4618 | * callback so that nothing happens when it finishes. | |
07951076 | 4619 | */ |
858c9f6c JS |
4620 | if ((vport->load_flag & FC_UNLOADING) && |
4621 | (pring->ringno == LPFC_ELS_RING)) { | |
92d7f7b0 JS |
4622 | if (cmdiocb->iocb_flag & LPFC_IO_FABRIC) |
4623 | cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl; | |
4624 | else | |
4625 | cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl; | |
07951076 | 4626 | goto abort_iotag_exit; |
92d7f7b0 | 4627 | } |
dea3101e | 4628 | |
4629 | /* issue ABTS for this IOCB based on iotag */ | |
92d7f7b0 | 4630 | abtsiocbp = __lpfc_sli_get_iocbq(phba); |
dea3101e | 4631 | if (abtsiocbp == NULL) |
4632 | return 0; | |
dea3101e | 4633 | |
07951076 JS |
4634 | /* This signals the response to set the correct status |
4635 | * before calling the completion handler. | |
4636 | */ | |
4637 | cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED; | |
4638 | ||
dea3101e | 4639 | iabt = &abtsiocbp->iocb; |
07951076 JS |
4640 | iabt->un.acxri.abortType = ABORT_TYPE_ABTS; |
4641 | iabt->un.acxri.abortContextTag = icmd->ulpContext; | |
4642 | iabt->un.acxri.abortIoTag = icmd->ulpIoTag; | |
4643 | iabt->ulpLe = 1; | |
4644 | iabt->ulpClass = icmd->ulpClass; | |
dea3101e | 4645 | |
2e0fef85 | 4646 | if (phba->link_state >= LPFC_LINK_UP) |
07951076 JS |
4647 | iabt->ulpCommand = CMD_ABORT_XRI_CN; |
4648 | else | |
4649 | iabt->ulpCommand = CMD_CLOSE_XRI_CN; | |
dea3101e | 4650 | |
07951076 | 4651 | abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl; |
5b8bd0c9 | 4652 | |
e8b62011 JS |
4653 | lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, |
4654 | "0339 Abort xri x%x, original iotag x%x, " | |
4655 | "abort cmd iotag x%x\n", | |
4656 | iabt->un.acxri.abortContextTag, | |
4657 | iabt->un.acxri.abortIoTag, abtsiocbp->iotag); | |
92d7f7b0 | 4658 | retval = __lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0); |
dea3101e | 4659 | |
d7c255b2 JS |
4660 | if (retval) |
4661 | __lpfc_sli_release_iocbq(phba, abtsiocbp); | |
07951076 | 4662 | abort_iotag_exit: |
2e0fef85 JS |
4663 | /* |
4664 | * Caller to this routine should check for IOCB_ERROR | |
4665 | * and handle it properly. This routine no longer removes | |
4666 | * iocb off txcmplq and call compl in case of IOCB_ERROR. | |
07951076 | 4667 | */ |
2e0fef85 | 4668 | return retval; |
dea3101e | 4669 | } |
4670 | ||
e59058c4 | 4671 | /** |
3621a710 | 4672 | * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN |
e59058c4 JS |
4673 | * @iocbq: Pointer to driver iocb object. |
4674 | * @vport: Pointer to driver virtual port object. | |
4675 | * @tgt_id: SCSI ID of the target. | |
4676 | * @lun_id: LUN ID of the scsi device. | |
4677 | * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST | |
4678 | * | |
3621a710 | 4679 | * This function acts as an iocb filter for functions which abort or count |
e59058c4 JS |
4680 | * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return |
4681 | * 0 if the filtering criteria is met for the given iocb and will return | |
4682 | * 1 if the filtering criteria is not met. | |
4683 | * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the | |
4684 | * given iocb is for the SCSI device specified by vport, tgt_id and | |
4685 | * lun_id parameter. | |
4686 | * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the | |
4687 | * given iocb is for the SCSI target specified by vport and tgt_id | |
4688 | * parameters. | |
4689 | * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the | |
4690 | * given iocb is for the SCSI host associated with the given vport. | |
4691 | * This function is called with no locks held. | |
4692 | **/ | |
dea3101e | 4693 | static int |
51ef4c26 JS |
4694 | lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport, |
4695 | uint16_t tgt_id, uint64_t lun_id, | |
0bd4ca25 | 4696 | lpfc_ctx_cmd ctx_cmd) |
dea3101e | 4697 | { |
0bd4ca25 | 4698 | struct lpfc_scsi_buf *lpfc_cmd; |
dea3101e | 4699 | int rc = 1; |
4700 | ||
0bd4ca25 JSEC |
4701 | if (!(iocbq->iocb_flag & LPFC_IO_FCP)) |
4702 | return rc; | |
4703 | ||
51ef4c26 JS |
4704 | if (iocbq->vport != vport) |
4705 | return rc; | |
4706 | ||
0bd4ca25 | 4707 | lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq); |
0bd4ca25 | 4708 | |
495a714c | 4709 | if (lpfc_cmd->pCmd == NULL) |
dea3101e | 4710 | return rc; |
4711 | ||
4712 | switch (ctx_cmd) { | |
4713 | case LPFC_CTX_LUN: | |
495a714c JS |
4714 | if ((lpfc_cmd->rdata->pnode) && |
4715 | (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) && | |
4716 | (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id)) | |
dea3101e | 4717 | rc = 0; |
4718 | break; | |
4719 | case LPFC_CTX_TGT: | |
495a714c JS |
4720 | if ((lpfc_cmd->rdata->pnode) && |
4721 | (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id)) | |
dea3101e | 4722 | rc = 0; |
4723 | break; | |
dea3101e | 4724 | case LPFC_CTX_HOST: |
4725 | rc = 0; | |
4726 | break; | |
4727 | default: | |
4728 | printk(KERN_ERR "%s: Unknown context cmd type, value %d\n", | |
cadbd4a5 | 4729 | __func__, ctx_cmd); |
dea3101e | 4730 | break; |
4731 | } | |
4732 | ||
4733 | return rc; | |
4734 | } | |
4735 | ||
e59058c4 | 4736 | /** |
3621a710 | 4737 | * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending |
e59058c4 JS |
4738 | * @vport: Pointer to virtual port. |
4739 | * @tgt_id: SCSI ID of the target. | |
4740 | * @lun_id: LUN ID of the scsi device. | |
4741 | * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST. | |
4742 | * | |
4743 | * This function returns number of FCP commands pending for the vport. | |
4744 | * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP | |
4745 | * commands pending on the vport associated with SCSI device specified | |
4746 | * by tgt_id and lun_id parameters. | |
4747 | * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP | |
4748 | * commands pending on the vport associated with SCSI target specified | |
4749 | * by tgt_id parameter. | |
4750 | * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP | |
4751 | * commands pending on the vport. | |
4752 | * This function returns the number of iocbs which satisfy the filter. | |
4753 | * This function is called without any lock held. | |
4754 | **/ | |
dea3101e | 4755 | int |
51ef4c26 JS |
4756 | lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id, |
4757 | lpfc_ctx_cmd ctx_cmd) | |
dea3101e | 4758 | { |
51ef4c26 | 4759 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 JSEC |
4760 | struct lpfc_iocbq *iocbq; |
4761 | int sum, i; | |
dea3101e | 4762 | |
0bd4ca25 JSEC |
4763 | for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) { |
4764 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 4765 | |
51ef4c26 JS |
4766 | if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id, |
4767 | ctx_cmd) == 0) | |
0bd4ca25 | 4768 | sum++; |
dea3101e | 4769 | } |
0bd4ca25 | 4770 | |
dea3101e | 4771 | return sum; |
4772 | } | |
4773 | ||
e59058c4 | 4774 | /** |
3621a710 | 4775 | * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs |
e59058c4 JS |
4776 | * @phba: Pointer to HBA context object |
4777 | * @cmdiocb: Pointer to command iocb object. | |
4778 | * @rspiocb: Pointer to response iocb object. | |
4779 | * | |
4780 | * This function is called when an aborted FCP iocb completes. This | |
4781 | * function is called by the ring event handler with no lock held. | |
4782 | * This function frees the iocb. | |
4783 | **/ | |
5eb95af0 | 4784 | void |
2e0fef85 JS |
4785 | lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
4786 | struct lpfc_iocbq *rspiocb) | |
5eb95af0 | 4787 | { |
604a3e30 | 4788 | lpfc_sli_release_iocbq(phba, cmdiocb); |
5eb95af0 JSEC |
4789 | return; |
4790 | } | |
4791 | ||
e59058c4 | 4792 | /** |
3621a710 | 4793 | * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN |
e59058c4 JS |
4794 | * @vport: Pointer to virtual port. |
4795 | * @pring: Pointer to driver SLI ring object. | |
4796 | * @tgt_id: SCSI ID of the target. | |
4797 | * @lun_id: LUN ID of the scsi device. | |
4798 | * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST. | |
4799 | * | |
4800 | * This function sends an abort command for every SCSI command | |
4801 | * associated with the given virtual port pending on the ring | |
4802 | * filtered by lpfc_sli_validate_fcp_iocb function. | |
4803 | * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the | |
4804 | * FCP iocbs associated with lun specified by tgt_id and lun_id | |
4805 | * parameters | |
4806 | * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the | |
4807 | * FCP iocbs associated with SCSI target specified by tgt_id parameter. | |
4808 | * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all | |
4809 | * FCP iocbs associated with virtual port. | |
4810 | * This function returns number of iocbs it failed to abort. | |
4811 | * This function is called with no locks held. | |
4812 | **/ | |
dea3101e | 4813 | int |
51ef4c26 JS |
4814 | lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring, |
4815 | uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd) | |
dea3101e | 4816 | { |
51ef4c26 | 4817 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 JSEC |
4818 | struct lpfc_iocbq *iocbq; |
4819 | struct lpfc_iocbq *abtsiocb; | |
dea3101e | 4820 | IOCB_t *cmd = NULL; |
dea3101e | 4821 | int errcnt = 0, ret_val = 0; |
0bd4ca25 | 4822 | int i; |
dea3101e | 4823 | |
0bd4ca25 JSEC |
4824 | for (i = 1; i <= phba->sli.last_iotag; i++) { |
4825 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 4826 | |
51ef4c26 | 4827 | if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id, |
2e0fef85 | 4828 | abort_cmd) != 0) |
dea3101e | 4829 | continue; |
4830 | ||
4831 | /* issue ABTS for this IOCB based on iotag */ | |
0bd4ca25 | 4832 | abtsiocb = lpfc_sli_get_iocbq(phba); |
dea3101e | 4833 | if (abtsiocb == NULL) { |
4834 | errcnt++; | |
4835 | continue; | |
4836 | } | |
dea3101e | 4837 | |
0bd4ca25 | 4838 | cmd = &iocbq->iocb; |
dea3101e | 4839 | abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS; |
4840 | abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext; | |
4841 | abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag; | |
4842 | abtsiocb->iocb.ulpLe = 1; | |
4843 | abtsiocb->iocb.ulpClass = cmd->ulpClass; | |
2e0fef85 | 4844 | abtsiocb->vport = phba->pport; |
dea3101e | 4845 | |
2e0fef85 | 4846 | if (lpfc_is_link_up(phba)) |
dea3101e | 4847 | abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN; |
4848 | else | |
4849 | abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN; | |
4850 | ||
5eb95af0 JSEC |
4851 | /* Setup callback routine and issue the command. */ |
4852 | abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl; | |
dea3101e | 4853 | ret_val = lpfc_sli_issue_iocb(phba, pring, abtsiocb, 0); |
4854 | if (ret_val == IOCB_ERROR) { | |
604a3e30 | 4855 | lpfc_sli_release_iocbq(phba, abtsiocb); |
dea3101e | 4856 | errcnt++; |
4857 | continue; | |
4858 | } | |
4859 | } | |
4860 | ||
4861 | return errcnt; | |
4862 | } | |
4863 | ||
e59058c4 | 4864 | /** |
3621a710 | 4865 | * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler |
e59058c4 JS |
4866 | * @phba: Pointer to HBA context object. |
4867 | * @cmdiocbq: Pointer to command iocb. | |
4868 | * @rspiocbq: Pointer to response iocb. | |
4869 | * | |
4870 | * This function is the completion handler for iocbs issued using | |
4871 | * lpfc_sli_issue_iocb_wait function. This function is called by the | |
4872 | * ring event handler function without any lock held. This function | |
4873 | * can be called from both worker thread context and interrupt | |
4874 | * context. This function also can be called from other thread which | |
4875 | * cleans up the SLI layer objects. | |
4876 | * This function copy the contents of the response iocb to the | |
4877 | * response iocb memory object provided by the caller of | |
4878 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
4879 | * sleeps for the iocb completion. | |
4880 | **/ | |
68876920 JSEC |
4881 | static void |
4882 | lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba, | |
4883 | struct lpfc_iocbq *cmdiocbq, | |
4884 | struct lpfc_iocbq *rspiocbq) | |
dea3101e | 4885 | { |
68876920 JSEC |
4886 | wait_queue_head_t *pdone_q; |
4887 | unsigned long iflags; | |
dea3101e | 4888 | |
2e0fef85 | 4889 | spin_lock_irqsave(&phba->hbalock, iflags); |
68876920 JSEC |
4890 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; |
4891 | if (cmdiocbq->context2 && rspiocbq) | |
4892 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, | |
4893 | &rspiocbq->iocb, sizeof(IOCB_t)); | |
4894 | ||
4895 | pdone_q = cmdiocbq->context_un.wait_queue; | |
68876920 JSEC |
4896 | if (pdone_q) |
4897 | wake_up(pdone_q); | |
858c9f6c | 4898 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
dea3101e | 4899 | return; |
4900 | } | |
4901 | ||
e59058c4 | 4902 | /** |
3621a710 | 4903 | * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands |
e59058c4 JS |
4904 | * @phba: Pointer to HBA context object.. |
4905 | * @pring: Pointer to sli ring. | |
4906 | * @piocb: Pointer to command iocb. | |
4907 | * @prspiocbq: Pointer to response iocb. | |
4908 | * @timeout: Timeout in number of seconds. | |
4909 | * | |
4910 | * This function issues the iocb to firmware and waits for the | |
4911 | * iocb to complete. If the iocb command is not | |
4912 | * completed within timeout seconds, it returns IOCB_TIMEDOUT. | |
4913 | * Caller should not free the iocb resources if this function | |
4914 | * returns IOCB_TIMEDOUT. | |
4915 | * The function waits for the iocb completion using an | |
4916 | * non-interruptible wait. | |
4917 | * This function will sleep while waiting for iocb completion. | |
4918 | * So, this function should not be called from any context which | |
4919 | * does not allow sleeping. Due to the same reason, this function | |
4920 | * cannot be called with interrupt disabled. | |
4921 | * This function assumes that the iocb completions occur while | |
4922 | * this function sleep. So, this function cannot be called from | |
4923 | * the thread which process iocb completion for this ring. | |
4924 | * This function clears the iocb_flag of the iocb object before | |
4925 | * issuing the iocb and the iocb completion handler sets this | |
4926 | * flag and wakes this thread when the iocb completes. | |
4927 | * The contents of the response iocb will be copied to prspiocbq | |
4928 | * by the completion handler when the command completes. | |
4929 | * This function returns IOCB_SUCCESS when success. | |
4930 | * This function is called with no lock held. | |
4931 | **/ | |
dea3101e | 4932 | int |
2e0fef85 JS |
4933 | lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba, |
4934 | struct lpfc_sli_ring *pring, | |
4935 | struct lpfc_iocbq *piocb, | |
4936 | struct lpfc_iocbq *prspiocbq, | |
68876920 | 4937 | uint32_t timeout) |
dea3101e | 4938 | { |
7259f0d0 | 4939 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q); |
68876920 JSEC |
4940 | long timeleft, timeout_req = 0; |
4941 | int retval = IOCB_SUCCESS; | |
875fbdfe | 4942 | uint32_t creg_val; |
dea3101e | 4943 | |
4944 | /* | |
68876920 JSEC |
4945 | * If the caller has provided a response iocbq buffer, then context2 |
4946 | * is NULL or its an error. | |
dea3101e | 4947 | */ |
68876920 JSEC |
4948 | if (prspiocbq) { |
4949 | if (piocb->context2) | |
4950 | return IOCB_ERROR; | |
4951 | piocb->context2 = prspiocbq; | |
dea3101e | 4952 | } |
4953 | ||
68876920 JSEC |
4954 | piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait; |
4955 | piocb->context_un.wait_queue = &done_q; | |
4956 | piocb->iocb_flag &= ~LPFC_IO_WAKE; | |
dea3101e | 4957 | |
875fbdfe JSEC |
4958 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
4959 | creg_val = readl(phba->HCregaddr); | |
4960 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); | |
4961 | writel(creg_val, phba->HCregaddr); | |
4962 | readl(phba->HCregaddr); /* flush */ | |
4963 | } | |
4964 | ||
68876920 JSEC |
4965 | retval = lpfc_sli_issue_iocb(phba, pring, piocb, 0); |
4966 | if (retval == IOCB_SUCCESS) { | |
4967 | timeout_req = timeout * HZ; | |
68876920 JSEC |
4968 | timeleft = wait_event_timeout(done_q, |
4969 | piocb->iocb_flag & LPFC_IO_WAKE, | |
4970 | timeout_req); | |
dea3101e | 4971 | |
7054a606 JS |
4972 | if (piocb->iocb_flag & LPFC_IO_WAKE) { |
4973 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 4974 | "0331 IOCB wake signaled\n"); |
7054a606 | 4975 | } else if (timeleft == 0) { |
68876920 | 4976 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 JS |
4977 | "0338 IOCB wait timeout error - no " |
4978 | "wake response Data x%x\n", timeout); | |
68876920 | 4979 | retval = IOCB_TIMEDOUT; |
7054a606 | 4980 | } else { |
68876920 | 4981 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 JS |
4982 | "0330 IOCB wake NOT set, " |
4983 | "Data x%x x%lx\n", | |
68876920 JSEC |
4984 | timeout, (timeleft / jiffies)); |
4985 | retval = IOCB_TIMEDOUT; | |
dea3101e | 4986 | } |
68876920 JSEC |
4987 | } else { |
4988 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
d7c255b2 | 4989 | "0332 IOCB wait issue failed, Data x%x\n", |
e8b62011 | 4990 | retval); |
68876920 | 4991 | retval = IOCB_ERROR; |
dea3101e | 4992 | } |
4993 | ||
875fbdfe JSEC |
4994 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
4995 | creg_val = readl(phba->HCregaddr); | |
4996 | creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); | |
4997 | writel(creg_val, phba->HCregaddr); | |
4998 | readl(phba->HCregaddr); /* flush */ | |
4999 | } | |
5000 | ||
68876920 JSEC |
5001 | if (prspiocbq) |
5002 | piocb->context2 = NULL; | |
5003 | ||
5004 | piocb->context_un.wait_queue = NULL; | |
5005 | piocb->iocb_cmpl = NULL; | |
dea3101e | 5006 | return retval; |
5007 | } | |
68876920 | 5008 | |
e59058c4 | 5009 | /** |
3621a710 | 5010 | * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox |
e59058c4 JS |
5011 | * @phba: Pointer to HBA context object. |
5012 | * @pmboxq: Pointer to driver mailbox object. | |
5013 | * @timeout: Timeout in number of seconds. | |
5014 | * | |
5015 | * This function issues the mailbox to firmware and waits for the | |
5016 | * mailbox command to complete. If the mailbox command is not | |
5017 | * completed within timeout seconds, it returns MBX_TIMEOUT. | |
5018 | * The function waits for the mailbox completion using an | |
5019 | * interruptible wait. If the thread is woken up due to a | |
5020 | * signal, MBX_TIMEOUT error is returned to the caller. Caller | |
5021 | * should not free the mailbox resources, if this function returns | |
5022 | * MBX_TIMEOUT. | |
5023 | * This function will sleep while waiting for mailbox completion. | |
5024 | * So, this function should not be called from any context which | |
5025 | * does not allow sleeping. Due to the same reason, this function | |
5026 | * cannot be called with interrupt disabled. | |
5027 | * This function assumes that the mailbox completion occurs while | |
5028 | * this function sleep. So, this function cannot be called from | |
5029 | * the worker thread which processes mailbox completion. | |
5030 | * This function is called in the context of HBA management | |
5031 | * applications. | |
5032 | * This function returns MBX_SUCCESS when successful. | |
5033 | * This function is called with no lock held. | |
5034 | **/ | |
dea3101e | 5035 | int |
2e0fef85 | 5036 | lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq, |
dea3101e | 5037 | uint32_t timeout) |
5038 | { | |
7259f0d0 | 5039 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q); |
dea3101e | 5040 | int retval; |
858c9f6c | 5041 | unsigned long flag; |
dea3101e | 5042 | |
5043 | /* The caller must leave context1 empty. */ | |
98c9ea5c | 5044 | if (pmboxq->context1) |
2e0fef85 | 5045 | return MBX_NOT_FINISHED; |
dea3101e | 5046 | |
495a714c | 5047 | pmboxq->mbox_flag &= ~LPFC_MBX_WAKE; |
dea3101e | 5048 | /* setup wake call as IOCB callback */ |
5049 | pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait; | |
5050 | /* setup context field to pass wait_queue pointer to wake function */ | |
5051 | pmboxq->context1 = &done_q; | |
5052 | ||
dea3101e | 5053 | /* now issue the command */ |
5054 | retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); | |
5055 | ||
5056 | if (retval == MBX_BUSY || retval == MBX_SUCCESS) { | |
7054a606 JS |
5057 | wait_event_interruptible_timeout(done_q, |
5058 | pmboxq->mbox_flag & LPFC_MBX_WAKE, | |
5059 | timeout * HZ); | |
5060 | ||
858c9f6c | 5061 | spin_lock_irqsave(&phba->hbalock, flag); |
dea3101e | 5062 | pmboxq->context1 = NULL; |
7054a606 JS |
5063 | /* |
5064 | * if LPFC_MBX_WAKE flag is set the mailbox is completed | |
5065 | * else do not free the resources. | |
5066 | */ | |
5067 | if (pmboxq->mbox_flag & LPFC_MBX_WAKE) | |
dea3101e | 5068 | retval = MBX_SUCCESS; |
858c9f6c | 5069 | else { |
7054a606 | 5070 | retval = MBX_TIMEOUT; |
858c9f6c JS |
5071 | pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
5072 | } | |
5073 | spin_unlock_irqrestore(&phba->hbalock, flag); | |
dea3101e | 5074 | } |
5075 | ||
dea3101e | 5076 | return retval; |
5077 | } | |
5078 | ||
e59058c4 | 5079 | /** |
3621a710 | 5080 | * lpfc_sli_flush_mbox_queue - mailbox queue cleanup function |
e59058c4 JS |
5081 | * @phba: Pointer to HBA context. |
5082 | * | |
5083 | * This function is called to cleanup any pending mailbox | |
5084 | * objects in the driver queue before bringing the HBA offline. | |
5085 | * This function is called while resetting the HBA. | |
5086 | * The function is called without any lock held. The function | |
5087 | * takes hbalock to update SLI data structure. | |
5088 | * This function returns 1 when there is an active mailbox | |
5089 | * command pending else returns 0. | |
5090 | **/ | |
b4c02652 JS |
5091 | int |
5092 | lpfc_sli_flush_mbox_queue(struct lpfc_hba * phba) | |
5093 | { | |
2e0fef85 | 5094 | struct lpfc_vport *vport = phba->pport; |
b4c02652 | 5095 | int i = 0; |
ed957684 | 5096 | uint32_t ha_copy; |
b4c02652 | 5097 | |
2e0fef85 | 5098 | while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE && !vport->stopped) { |
b4c02652 JS |
5099 | if (i++ > LPFC_MBOX_TMO * 1000) |
5100 | return 1; | |
5101 | ||
ed957684 JS |
5102 | /* |
5103 | * Call lpfc_sli_handle_mb_event only if a mailbox cmd | |
5104 | * did finish. This way we won't get the misleading | |
5105 | * "Stray Mailbox Interrupt" message. | |
5106 | */ | |
5107 | spin_lock_irq(&phba->hbalock); | |
5108 | ha_copy = phba->work_ha; | |
5109 | phba->work_ha &= ~HA_MBATT; | |
5110 | spin_unlock_irq(&phba->hbalock); | |
5111 | ||
5112 | if (ha_copy & HA_MBATT) | |
5113 | if (lpfc_sli_handle_mb_event(phba) == 0) | |
5114 | i = 0; | |
b4c02652 JS |
5115 | |
5116 | msleep(1); | |
5117 | } | |
5118 | ||
5119 | return (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) ? 1 : 0; | |
5120 | } | |
5121 | ||
e59058c4 | 5122 | /** |
3621a710 | 5123 | * lpfc_sli_check_eratt - check error attention events |
9399627f JS |
5124 | * @phba: Pointer to HBA context. |
5125 | * | |
5126 | * This function is called form timer soft interrupt context to check HBA's | |
5127 | * error attention register bit for error attention events. | |
5128 | * | |
5129 | * This fucntion returns 1 when there is Error Attention in the Host Attention | |
5130 | * Register and returns 0 otherwise. | |
5131 | **/ | |
5132 | int | |
5133 | lpfc_sli_check_eratt(struct lpfc_hba *phba) | |
5134 | { | |
5135 | uint32_t ha_copy; | |
5136 | ||
eaf15d5b JS |
5137 | /* If PCI channel is offline, don't process it */ |
5138 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
5139 | return 0; | |
5140 | ||
9399627f JS |
5141 | /* If somebody is waiting to handle an eratt, don't process it |
5142 | * here. The brdkill function will do this. | |
5143 | */ | |
5144 | if (phba->link_flag & LS_IGNORE_ERATT) | |
5145 | return 0; | |
5146 | ||
5147 | /* Check if interrupt handler handles this ERATT */ | |
5148 | spin_lock_irq(&phba->hbalock); | |
5149 | if (phba->hba_flag & HBA_ERATT_HANDLED) { | |
5150 | /* Interrupt handler has handled ERATT */ | |
5151 | spin_unlock_irq(&phba->hbalock); | |
5152 | return 0; | |
5153 | } | |
5154 | ||
a257bf90 JS |
5155 | /* |
5156 | * If there is deferred error attention, do not check for error | |
5157 | * attention | |
5158 | */ | |
5159 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
5160 | spin_unlock_irq(&phba->hbalock); | |
5161 | return 0; | |
5162 | } | |
5163 | ||
9399627f JS |
5164 | /* Read chip Host Attention (HA) register */ |
5165 | ha_copy = readl(phba->HAregaddr); | |
5166 | if (ha_copy & HA_ERATT) { | |
5167 | /* Read host status register to retrieve error event */ | |
5168 | lpfc_sli_read_hs(phba); | |
a257bf90 JS |
5169 | |
5170 | /* Check if there is a deferred error condition is active */ | |
5171 | if ((HS_FFER1 & phba->work_hs) && | |
5172 | ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 | | |
5173 | HS_FFER6 | HS_FFER7) & phba->work_hs)) { | |
5174 | phba->hba_flag |= DEFER_ERATT; | |
5175 | /* Clear all interrupt enable conditions */ | |
5176 | writel(0, phba->HCregaddr); | |
5177 | readl(phba->HCregaddr); | |
5178 | } | |
5179 | ||
9399627f JS |
5180 | /* Set the driver HA work bitmap */ |
5181 | phba->work_ha |= HA_ERATT; | |
5182 | /* Indicate polling handles this ERATT */ | |
5183 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
5184 | spin_unlock_irq(&phba->hbalock); | |
5185 | return 1; | |
5186 | } | |
5187 | spin_unlock_irq(&phba->hbalock); | |
5188 | return 0; | |
5189 | } | |
5190 | ||
5191 | /** | |
3621a710 | 5192 | * lpfc_sp_intr_handler - The slow-path interrupt handler of lpfc driver |
e59058c4 JS |
5193 | * @irq: Interrupt number. |
5194 | * @dev_id: The device context pointer. | |
5195 | * | |
9399627f JS |
5196 | * This function is directly called from the PCI layer as an interrupt |
5197 | * service routine when the device is enabled with MSI-X multi-message | |
5198 | * interrupt mode and there are slow-path events in the HBA. However, | |
5199 | * when the device is enabled with either MSI or Pin-IRQ interrupt mode, | |
5200 | * this function is called as part of the device-level interrupt handler. | |
5201 | * When the PCI slot is in error recovery or the HBA is undergoing | |
5202 | * initialization, the interrupt handler will not process the interrupt. | |
5203 | * The link attention and ELS ring attention events are handled by the | |
5204 | * worker thread. The interrupt handler signals the worker thread and | |
5205 | * and returns for these events. This function is called without any | |
5206 | * lock held. It gets the hbalock to access and update SLI data | |
5207 | * structures. | |
5208 | * | |
5209 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
5210 | * returns IRQ_NONE. | |
e59058c4 | 5211 | **/ |
dea3101e | 5212 | irqreturn_t |
9399627f | 5213 | lpfc_sp_intr_handler(int irq, void *dev_id) |
dea3101e | 5214 | { |
2e0fef85 | 5215 | struct lpfc_hba *phba; |
dea3101e | 5216 | uint32_t ha_copy; |
5217 | uint32_t work_ha_copy; | |
5218 | unsigned long status; | |
5b75da2f | 5219 | unsigned long iflag; |
dea3101e | 5220 | uint32_t control; |
5221 | ||
92d7f7b0 | 5222 | MAILBOX_t *mbox, *pmbox; |
858c9f6c JS |
5223 | struct lpfc_vport *vport; |
5224 | struct lpfc_nodelist *ndlp; | |
5225 | struct lpfc_dmabuf *mp; | |
92d7f7b0 JS |
5226 | LPFC_MBOXQ_t *pmb; |
5227 | int rc; | |
5228 | ||
dea3101e | 5229 | /* |
5230 | * Get the driver's phba structure from the dev_id and | |
5231 | * assume the HBA is not interrupting. | |
5232 | */ | |
9399627f | 5233 | phba = (struct lpfc_hba *)dev_id; |
dea3101e | 5234 | |
5235 | if (unlikely(!phba)) | |
5236 | return IRQ_NONE; | |
5237 | ||
dea3101e | 5238 | /* |
9399627f JS |
5239 | * Stuff needs to be attented to when this function is invoked as an |
5240 | * individual interrupt handler in MSI-X multi-message interrupt mode | |
dea3101e | 5241 | */ |
9399627f JS |
5242 | if (phba->intr_type == MSIX) { |
5243 | /* If the pci channel is offline, ignore all the interrupts */ | |
5244 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
5245 | return IRQ_NONE; | |
5246 | /* Update device-level interrupt statistics */ | |
5247 | phba->sli.slistat.sli_intr++; | |
5248 | /* Ignore all interrupts during initialization. */ | |
5249 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) | |
5250 | return IRQ_NONE; | |
5251 | /* Need to read HA REG for slow-path events */ | |
5b75da2f | 5252 | spin_lock_irqsave(&phba->hbalock, iflag); |
34b02dcd | 5253 | ha_copy = readl(phba->HAregaddr); |
9399627f JS |
5254 | /* If somebody is waiting to handle an eratt don't process it |
5255 | * here. The brdkill function will do this. | |
5256 | */ | |
5257 | if (phba->link_flag & LS_IGNORE_ERATT) | |
5258 | ha_copy &= ~HA_ERATT; | |
5259 | /* Check the need for handling ERATT in interrupt handler */ | |
5260 | if (ha_copy & HA_ERATT) { | |
5261 | if (phba->hba_flag & HBA_ERATT_HANDLED) | |
5262 | /* ERATT polling has handled ERATT */ | |
5263 | ha_copy &= ~HA_ERATT; | |
5264 | else | |
5265 | /* Indicate interrupt handler handles ERATT */ | |
5266 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
5267 | } | |
a257bf90 JS |
5268 | |
5269 | /* | |
5270 | * If there is deferred error attention, do not check for any | |
5271 | * interrupt. | |
5272 | */ | |
5273 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
5274 | spin_unlock_irq(&phba->hbalock); | |
5275 | return IRQ_NONE; | |
5276 | } | |
5277 | ||
9399627f JS |
5278 | /* Clear up only attention source related to slow-path */ |
5279 | writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)), | |
5280 | phba->HAregaddr); | |
5281 | readl(phba->HAregaddr); /* flush */ | |
5b75da2f | 5282 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
9399627f JS |
5283 | } else |
5284 | ha_copy = phba->ha_copy; | |
dea3101e | 5285 | |
dea3101e | 5286 | work_ha_copy = ha_copy & phba->work_ha_mask; |
5287 | ||
9399627f | 5288 | if (work_ha_copy) { |
dea3101e | 5289 | if (work_ha_copy & HA_LATT) { |
5290 | if (phba->sli.sli_flag & LPFC_PROCESS_LA) { | |
5291 | /* | |
5292 | * Turn off Link Attention interrupts | |
5293 | * until CLEAR_LA done | |
5294 | */ | |
5b75da2f | 5295 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e | 5296 | phba->sli.sli_flag &= ~LPFC_PROCESS_LA; |
5297 | control = readl(phba->HCregaddr); | |
5298 | control &= ~HC_LAINT_ENA; | |
5299 | writel(control, phba->HCregaddr); | |
5300 | readl(phba->HCregaddr); /* flush */ | |
5b75da2f | 5301 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 5302 | } |
5303 | else | |
5304 | work_ha_copy &= ~HA_LATT; | |
5305 | } | |
5306 | ||
9399627f | 5307 | if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) { |
858c9f6c JS |
5308 | /* |
5309 | * Turn off Slow Rings interrupts, LPFC_ELS_RING is | |
5310 | * the only slow ring. | |
5311 | */ | |
5312 | status = (work_ha_copy & | |
5313 | (HA_RXMASK << (4*LPFC_ELS_RING))); | |
5314 | status >>= (4*LPFC_ELS_RING); | |
5315 | if (status & HA_RXMASK) { | |
5b75da2f | 5316 | spin_lock_irqsave(&phba->hbalock, iflag); |
858c9f6c | 5317 | control = readl(phba->HCregaddr); |
a58cbd52 JS |
5318 | |
5319 | lpfc_debugfs_slow_ring_trc(phba, | |
5320 | "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x", | |
5321 | control, status, | |
5322 | (uint32_t)phba->sli.slistat.sli_intr); | |
5323 | ||
858c9f6c | 5324 | if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) { |
a58cbd52 JS |
5325 | lpfc_debugfs_slow_ring_trc(phba, |
5326 | "ISR Disable ring:" | |
5327 | "pwork:x%x hawork:x%x wait:x%x", | |
5328 | phba->work_ha, work_ha_copy, | |
5329 | (uint32_t)((unsigned long) | |
5e9d9b82 | 5330 | &phba->work_waitq)); |
a58cbd52 | 5331 | |
858c9f6c JS |
5332 | control &= |
5333 | ~(HC_R0INT_ENA << LPFC_ELS_RING); | |
dea3101e | 5334 | writel(control, phba->HCregaddr); |
5335 | readl(phba->HCregaddr); /* flush */ | |
dea3101e | 5336 | } |
a58cbd52 JS |
5337 | else { |
5338 | lpfc_debugfs_slow_ring_trc(phba, | |
5339 | "ISR slow ring: pwork:" | |
5340 | "x%x hawork:x%x wait:x%x", | |
5341 | phba->work_ha, work_ha_copy, | |
5342 | (uint32_t)((unsigned long) | |
5e9d9b82 | 5343 | &phba->work_waitq)); |
a58cbd52 | 5344 | } |
5b75da2f | 5345 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 5346 | } |
5347 | } | |
5b75da2f | 5348 | spin_lock_irqsave(&phba->hbalock, iflag); |
a257bf90 | 5349 | if (work_ha_copy & HA_ERATT) { |
9399627f | 5350 | lpfc_sli_read_hs(phba); |
a257bf90 JS |
5351 | /* |
5352 | * Check if there is a deferred error condition | |
5353 | * is active | |
5354 | */ | |
5355 | if ((HS_FFER1 & phba->work_hs) && | |
5356 | ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 | | |
5357 | HS_FFER6 | HS_FFER7) & phba->work_hs)) { | |
5358 | phba->hba_flag |= DEFER_ERATT; | |
5359 | /* Clear all interrupt enable conditions */ | |
5360 | writel(0, phba->HCregaddr); | |
5361 | readl(phba->HCregaddr); | |
5362 | } | |
5363 | } | |
5364 | ||
9399627f | 5365 | if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) { |
92d7f7b0 JS |
5366 | pmb = phba->sli.mbox_active; |
5367 | pmbox = &pmb->mb; | |
34b02dcd | 5368 | mbox = phba->mbox; |
858c9f6c | 5369 | vport = pmb->vport; |
92d7f7b0 JS |
5370 | |
5371 | /* First check out the status word */ | |
5372 | lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t)); | |
5373 | if (pmbox->mbxOwner != OWN_HOST) { | |
5b75da2f | 5374 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
92d7f7b0 JS |
5375 | /* |
5376 | * Stray Mailbox Interrupt, mbxCommand <cmd> | |
5377 | * mbxStatus <status> | |
5378 | */ | |
09372820 | 5379 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | |
92d7f7b0 | 5380 | LOG_SLI, |
e8b62011 | 5381 | "(%d):0304 Stray Mailbox " |
92d7f7b0 JS |
5382 | "Interrupt mbxCommand x%x " |
5383 | "mbxStatus x%x\n", | |
e8b62011 | 5384 | (vport ? vport->vpi : 0), |
92d7f7b0 JS |
5385 | pmbox->mbxCommand, |
5386 | pmbox->mbxStatus); | |
09372820 JS |
5387 | /* clear mailbox attention bit */ |
5388 | work_ha_copy &= ~HA_MBATT; | |
5389 | } else { | |
97eab634 | 5390 | phba->sli.mbox_active = NULL; |
5b75da2f | 5391 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
09372820 JS |
5392 | phba->last_completion_time = jiffies; |
5393 | del_timer(&phba->sli.mbox_tmo); | |
09372820 JS |
5394 | if (pmb->mbox_cmpl) { |
5395 | lpfc_sli_pcimem_bcopy(mbox, pmbox, | |
5396 | MAILBOX_CMD_SIZE); | |
5397 | } | |
5398 | if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) { | |
5399 | pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG; | |
5400 | ||
5401 | lpfc_debugfs_disc_trc(vport, | |
5402 | LPFC_DISC_TRC_MBOX_VPORT, | |
5403 | "MBOX dflt rpi: : " | |
5404 | "status:x%x rpi:x%x", | |
5405 | (uint32_t)pmbox->mbxStatus, | |
5406 | pmbox->un.varWords[0], 0); | |
5407 | ||
5408 | if (!pmbox->mbxStatus) { | |
5409 | mp = (struct lpfc_dmabuf *) | |
5410 | (pmb->context1); | |
5411 | ndlp = (struct lpfc_nodelist *) | |
5412 | pmb->context2; | |
5413 | ||
5414 | /* Reg_LOGIN of dflt RPI was | |
5415 | * successful. new lets get | |
5416 | * rid of the RPI using the | |
5417 | * same mbox buffer. | |
5418 | */ | |
5419 | lpfc_unreg_login(phba, | |
5420 | vport->vpi, | |
5421 | pmbox->un.varWords[0], | |
5422 | pmb); | |
5423 | pmb->mbox_cmpl = | |
5424 | lpfc_mbx_cmpl_dflt_rpi; | |
5425 | pmb->context1 = mp; | |
5426 | pmb->context2 = ndlp; | |
5427 | pmb->vport = vport; | |
58da1ffb JS |
5428 | rc = lpfc_sli_issue_mbox(phba, |
5429 | pmb, | |
5430 | MBX_NOWAIT); | |
5431 | if (rc != MBX_BUSY) | |
5432 | lpfc_printf_log(phba, | |
5433 | KERN_ERR, | |
5434 | LOG_MBOX | LOG_SLI, | |
d7c255b2 | 5435 | "0350 rc should have" |
58da1ffb | 5436 | "been MBX_BUSY"); |
09372820 JS |
5437 | goto send_current_mbox; |
5438 | } | |
858c9f6c | 5439 | } |
5b75da2f JS |
5440 | spin_lock_irqsave( |
5441 | &phba->pport->work_port_lock, | |
5442 | iflag); | |
09372820 JS |
5443 | phba->pport->work_port_events &= |
5444 | ~WORKER_MBOX_TMO; | |
5b75da2f JS |
5445 | spin_unlock_irqrestore( |
5446 | &phba->pport->work_port_lock, | |
5447 | iflag); | |
09372820 | 5448 | lpfc_mbox_cmpl_put(phba, pmb); |
858c9f6c | 5449 | } |
97eab634 | 5450 | } else |
5b75da2f | 5451 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
9399627f | 5452 | |
92d7f7b0 JS |
5453 | if ((work_ha_copy & HA_MBATT) && |
5454 | (phba->sli.mbox_active == NULL)) { | |
858c9f6c | 5455 | send_current_mbox: |
92d7f7b0 | 5456 | /* Process next mailbox command if there is one */ |
58da1ffb JS |
5457 | do { |
5458 | rc = lpfc_sli_issue_mbox(phba, NULL, | |
5459 | MBX_NOWAIT); | |
5460 | } while (rc == MBX_NOT_FINISHED); | |
5461 | if (rc != MBX_SUCCESS) | |
5462 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | | |
5463 | LOG_SLI, "0349 rc should be " | |
5464 | "MBX_SUCCESS"); | |
92d7f7b0 JS |
5465 | } |
5466 | ||
5b75da2f | 5467 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e | 5468 | phba->work_ha |= work_ha_copy; |
5b75da2f | 5469 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
5e9d9b82 | 5470 | lpfc_worker_wake_up(phba); |
dea3101e | 5471 | } |
9399627f | 5472 | return IRQ_HANDLED; |
dea3101e | 5473 | |
9399627f JS |
5474 | } /* lpfc_sp_intr_handler */ |
5475 | ||
5476 | /** | |
3621a710 | 5477 | * lpfc_fp_intr_handler - The fast-path interrupt handler of lpfc driver |
9399627f JS |
5478 | * @irq: Interrupt number. |
5479 | * @dev_id: The device context pointer. | |
5480 | * | |
5481 | * This function is directly called from the PCI layer as an interrupt | |
5482 | * service routine when the device is enabled with MSI-X multi-message | |
5483 | * interrupt mode and there is a fast-path FCP IOCB ring event in the | |
5484 | * HBA. However, when the device is enabled with either MSI or Pin-IRQ | |
5485 | * interrupt mode, this function is called as part of the device-level | |
5486 | * interrupt handler. When the PCI slot is in error recovery or the HBA | |
5487 | * is undergoing initialization, the interrupt handler will not process | |
5488 | * the interrupt. The SCSI FCP fast-path ring event are handled in the | |
5489 | * intrrupt context. This function is called without any lock held. It | |
5490 | * gets the hbalock to access and update SLI data structures. | |
5491 | * | |
5492 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
5493 | * returns IRQ_NONE. | |
5494 | **/ | |
5495 | irqreturn_t | |
5496 | lpfc_fp_intr_handler(int irq, void *dev_id) | |
5497 | { | |
5498 | struct lpfc_hba *phba; | |
5499 | uint32_t ha_copy; | |
5500 | unsigned long status; | |
5b75da2f | 5501 | unsigned long iflag; |
9399627f JS |
5502 | |
5503 | /* Get the driver's phba structure from the dev_id and | |
5504 | * assume the HBA is not interrupting. | |
5505 | */ | |
5506 | phba = (struct lpfc_hba *) dev_id; | |
5507 | ||
5508 | if (unlikely(!phba)) | |
5509 | return IRQ_NONE; | |
5510 | ||
5511 | /* | |
5512 | * Stuff needs to be attented to when this function is invoked as an | |
5513 | * individual interrupt handler in MSI-X multi-message interrupt mode | |
5514 | */ | |
5515 | if (phba->intr_type == MSIX) { | |
5516 | /* If pci channel is offline, ignore all the interrupts */ | |
5517 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
5518 | return IRQ_NONE; | |
5519 | /* Update device-level interrupt statistics */ | |
5520 | phba->sli.slistat.sli_intr++; | |
5521 | /* Ignore all interrupts during initialization. */ | |
5522 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) | |
5523 | return IRQ_NONE; | |
5524 | /* Need to read HA REG for FCP ring and other ring events */ | |
5525 | ha_copy = readl(phba->HAregaddr); | |
5526 | /* Clear up only attention source related to fast-path */ | |
5b75da2f | 5527 | spin_lock_irqsave(&phba->hbalock, iflag); |
a257bf90 JS |
5528 | /* |
5529 | * If there is deferred error attention, do not check for | |
5530 | * any interrupt. | |
5531 | */ | |
5532 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
5533 | spin_unlock_irq(&phba->hbalock); | |
5534 | return IRQ_NONE; | |
5535 | } | |
9399627f JS |
5536 | writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)), |
5537 | phba->HAregaddr); | |
5538 | readl(phba->HAregaddr); /* flush */ | |
5b75da2f | 5539 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
9399627f JS |
5540 | } else |
5541 | ha_copy = phba->ha_copy; | |
dea3101e | 5542 | |
5543 | /* | |
9399627f | 5544 | * Process all events on FCP ring. Take the optimized path for FCP IO. |
dea3101e | 5545 | */ |
9399627f JS |
5546 | ha_copy &= ~(phba->work_ha_mask); |
5547 | ||
5548 | status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); | |
dea3101e | 5549 | status >>= (4*LPFC_FCP_RING); |
858c9f6c | 5550 | if (status & HA_RXMASK) |
dea3101e | 5551 | lpfc_sli_handle_fast_ring_event(phba, |
5552 | &phba->sli.ring[LPFC_FCP_RING], | |
5553 | status); | |
a4bc3379 JS |
5554 | |
5555 | if (phba->cfg_multi_ring_support == 2) { | |
5556 | /* | |
9399627f JS |
5557 | * Process all events on extra ring. Take the optimized path |
5558 | * for extra ring IO. | |
a4bc3379 | 5559 | */ |
9399627f | 5560 | status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING))); |
a4bc3379 | 5561 | status >>= (4*LPFC_EXTRA_RING); |
858c9f6c | 5562 | if (status & HA_RXMASK) { |
a4bc3379 JS |
5563 | lpfc_sli_handle_fast_ring_event(phba, |
5564 | &phba->sli.ring[LPFC_EXTRA_RING], | |
5565 | status); | |
5566 | } | |
5567 | } | |
dea3101e | 5568 | return IRQ_HANDLED; |
9399627f JS |
5569 | } /* lpfc_fp_intr_handler */ |
5570 | ||
5571 | /** | |
3621a710 | 5572 | * lpfc_intr_handler - The device-level interrupt handler of lpfc driver |
9399627f JS |
5573 | * @irq: Interrupt number. |
5574 | * @dev_id: The device context pointer. | |
5575 | * | |
5576 | * This function is the device-level interrupt handler called from the PCI | |
5577 | * layer when either MSI or Pin-IRQ interrupt mode is enabled and there is | |
5578 | * an event in the HBA which requires driver attention. This function | |
5579 | * invokes the slow-path interrupt attention handling function and fast-path | |
5580 | * interrupt attention handling function in turn to process the relevant | |
5581 | * HBA attention events. This function is called without any lock held. It | |
5582 | * gets the hbalock to access and update SLI data structures. | |
5583 | * | |
5584 | * This function returns IRQ_HANDLED when interrupt is handled, else it | |
5585 | * returns IRQ_NONE. | |
5586 | **/ | |
5587 | irqreturn_t | |
5588 | lpfc_intr_handler(int irq, void *dev_id) | |
5589 | { | |
5590 | struct lpfc_hba *phba; | |
5591 | irqreturn_t sp_irq_rc, fp_irq_rc; | |
5592 | unsigned long status1, status2; | |
5593 | ||
5594 | /* | |
5595 | * Get the driver's phba structure from the dev_id and | |
5596 | * assume the HBA is not interrupting. | |
5597 | */ | |
5598 | phba = (struct lpfc_hba *) dev_id; | |
5599 | ||
5600 | if (unlikely(!phba)) | |
5601 | return IRQ_NONE; | |
5602 | ||
5603 | /* If the pci channel is offline, ignore all the interrupts. */ | |
5604 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
5605 | return IRQ_NONE; | |
5606 | ||
5607 | /* Update device level interrupt statistics */ | |
5608 | phba->sli.slistat.sli_intr++; | |
5609 | ||
5610 | /* Ignore all interrupts during initialization. */ | |
5611 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) | |
5612 | return IRQ_NONE; | |
5613 | ||
5614 | spin_lock(&phba->hbalock); | |
5615 | phba->ha_copy = readl(phba->HAregaddr); | |
5616 | if (unlikely(!phba->ha_copy)) { | |
5617 | spin_unlock(&phba->hbalock); | |
5618 | return IRQ_NONE; | |
5619 | } else if (phba->ha_copy & HA_ERATT) { | |
5620 | if (phba->hba_flag & HBA_ERATT_HANDLED) | |
5621 | /* ERATT polling has handled ERATT */ | |
5622 | phba->ha_copy &= ~HA_ERATT; | |
5623 | else | |
5624 | /* Indicate interrupt handler handles ERATT */ | |
5625 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
5626 | } | |
5627 | ||
a257bf90 JS |
5628 | /* |
5629 | * If there is deferred error attention, do not check for any interrupt. | |
5630 | */ | |
5631 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
5632 | spin_unlock_irq(&phba->hbalock); | |
5633 | return IRQ_NONE; | |
5634 | } | |
5635 | ||
9399627f JS |
5636 | /* Clear attention sources except link and error attentions */ |
5637 | writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr); | |
5638 | readl(phba->HAregaddr); /* flush */ | |
5639 | spin_unlock(&phba->hbalock); | |
5640 | ||
5641 | /* | |
5642 | * Invokes slow-path host attention interrupt handling as appropriate. | |
5643 | */ | |
5644 | ||
5645 | /* status of events with mailbox and link attention */ | |
5646 | status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT); | |
5647 | ||
5648 | /* status of events with ELS ring */ | |
5649 | status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); | |
5650 | status2 >>= (4*LPFC_ELS_RING); | |
5651 | ||
5652 | if (status1 || (status2 & HA_RXMASK)) | |
5653 | sp_irq_rc = lpfc_sp_intr_handler(irq, dev_id); | |
5654 | else | |
5655 | sp_irq_rc = IRQ_NONE; | |
5656 | ||
5657 | /* | |
5658 | * Invoke fast-path host attention interrupt handling as appropriate. | |
5659 | */ | |
5660 | ||
5661 | /* status of events with FCP ring */ | |
5662 | status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); | |
5663 | status1 >>= (4*LPFC_FCP_RING); | |
5664 | ||
5665 | /* status of events with extra ring */ | |
5666 | if (phba->cfg_multi_ring_support == 2) { | |
5667 | status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING))); | |
5668 | status2 >>= (4*LPFC_EXTRA_RING); | |
5669 | } else | |
5670 | status2 = 0; | |
5671 | ||
5672 | if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK)) | |
5673 | fp_irq_rc = lpfc_fp_intr_handler(irq, dev_id); | |
5674 | else | |
5675 | fp_irq_rc = IRQ_NONE; | |
dea3101e | 5676 | |
9399627f JS |
5677 | /* Return device-level interrupt handling status */ |
5678 | return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc; | |
5679 | } /* lpfc_intr_handler */ |