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dea3101e JB |
1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
c44ce173 | 3 | * Fibre Channel Host Bus Adapters. * |
0c6ac8ef | 4 | * Copyright (C) 2004-2006 Emulex. All rights reserved. * |
c44ce173 | 5 | * EMULEX and SLI are trademarks of Emulex. * |
dea3101e | 6 | * www.emulex.com * |
c44ce173 | 7 | * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
dea3101e JB |
8 | * * |
9 | * This program is free software; you can redistribute it and/or * | |
c44ce173 JSEC |
10 | * modify it under the terms of version 2 of the GNU General * |
11 | * Public License as published by the Free Software Foundation. * | |
12 | * This program is distributed in the hope that it will be useful. * | |
13 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * | |
14 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * | |
15 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * | |
16 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * | |
17 | * TO BE LEGALLY INVALID. See the GNU General Public License for * | |
18 | * more details, a copy of which can be found in the file COPYING * | |
19 | * included with this package. * | |
dea3101e JB |
20 | *******************************************************************/ |
21 | ||
dea3101e JB |
22 | #include <linux/pci.h> |
23 | #include <linux/interrupt.h> | |
a90f5684 | 24 | #include <linux/delay.h> |
dea3101e JB |
25 | |
26 | #include <scsi/scsi.h> | |
27 | #include <scsi/scsi_device.h> | |
28 | #include <scsi/scsi_host.h> | |
29 | #include <scsi/scsi_tcq.h> | |
30 | #include <scsi/scsi_transport_fc.h> | |
31 | ||
32 | #include "lpfc_version.h" | |
33 | #include "lpfc_hw.h" | |
34 | #include "lpfc_sli.h" | |
35 | #include "lpfc_disc.h" | |
36 | #include "lpfc_scsi.h" | |
37 | #include "lpfc.h" | |
38 | #include "lpfc_logmsg.h" | |
39 | #include "lpfc_crtn.h" | |
40 | ||
41 | #define LPFC_RESET_WAIT 2 | |
42 | #define LPFC_ABORT_WAIT 2 | |
43 | ||
dea3101e JB |
44 | |
45 | /* | |
46 | * This routine allocates a scsi buffer, which contains all the necessary | |
47 | * information needed to initiate a SCSI I/O. The non-DMAable buffer region | |
48 | * contains information to build the IOCB. The DMAable region contains | |
49 | * memory for the FCP CMND, FCP RSP, and the inital BPL. In addition to | |
50 | * allocating memeory, the FCP CMND and FCP RSP BDEs are setup in the BPL | |
51 | * and the BPL BDE is setup in the IOCB. | |
52 | */ | |
53 | static struct lpfc_scsi_buf * | |
0bd4ca25 | 54 | lpfc_new_scsi_buf(struct lpfc_hba * phba) |
dea3101e JB |
55 | { |
56 | struct lpfc_scsi_buf *psb; | |
57 | struct ulp_bde64 *bpl; | |
58 | IOCB_t *iocb; | |
59 | dma_addr_t pdma_phys; | |
604a3e30 | 60 | uint16_t iotag; |
dea3101e JB |
61 | |
62 | psb = kmalloc(sizeof(struct lpfc_scsi_buf), GFP_KERNEL); | |
63 | if (!psb) | |
64 | return NULL; | |
65 | memset(psb, 0, sizeof (struct lpfc_scsi_buf)); | |
66 | psb->scsi_hba = phba; | |
67 | ||
68 | /* | |
69 | * Get memory from the pci pool to map the virt space to pci bus space | |
70 | * for an I/O. The DMA buffer includes space for the struct fcp_cmnd, | |
71 | * struct fcp_rsp and the number of bde's necessary to support the | |
72 | * sg_tablesize. | |
73 | */ | |
74 | psb->data = pci_pool_alloc(phba->lpfc_scsi_dma_buf_pool, GFP_KERNEL, | |
75 | &psb->dma_handle); | |
76 | if (!psb->data) { | |
77 | kfree(psb); | |
78 | return NULL; | |
79 | } | |
80 | ||
81 | /* Initialize virtual ptrs to dma_buf region. */ | |
82 | memset(psb->data, 0, phba->cfg_sg_dma_buf_size); | |
83 | ||
604a3e30 JB |
84 | /* Allocate iotag for psb->cur_iocbq. */ |
85 | iotag = lpfc_sli_next_iotag(phba, &psb->cur_iocbq); | |
86 | if (iotag == 0) { | |
87 | pci_pool_free(phba->lpfc_scsi_dma_buf_pool, | |
88 | psb->data, psb->dma_handle); | |
89 | kfree (psb); | |
90 | return NULL; | |
91 | } | |
0bd4ca25 | 92 | psb->cur_iocbq.iocb_flag |= LPFC_IO_FCP; |
604a3e30 | 93 | |
dea3101e JB |
94 | psb->fcp_cmnd = psb->data; |
95 | psb->fcp_rsp = psb->data + sizeof(struct fcp_cmnd); | |
96 | psb->fcp_bpl = psb->data + sizeof(struct fcp_cmnd) + | |
97 | sizeof(struct fcp_rsp); | |
98 | ||
99 | /* Initialize local short-hand pointers. */ | |
100 | bpl = psb->fcp_bpl; | |
101 | pdma_phys = psb->dma_handle; | |
102 | ||
103 | /* | |
104 | * The first two bdes are the FCP_CMD and FCP_RSP. The balance are sg | |
105 | * list bdes. Initialize the first two and leave the rest for | |
106 | * queuecommand. | |
107 | */ | |
108 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(pdma_phys)); | |
109 | bpl->addrLow = le32_to_cpu(putPaddrLow(pdma_phys)); | |
110 | bpl->tus.f.bdeSize = sizeof (struct fcp_cmnd); | |
111 | bpl->tus.f.bdeFlags = BUFF_USE_CMND; | |
112 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
113 | bpl++; | |
114 | ||
115 | /* Setup the physical region for the FCP RSP */ | |
116 | pdma_phys += sizeof (struct fcp_cmnd); | |
117 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(pdma_phys)); | |
118 | bpl->addrLow = le32_to_cpu(putPaddrLow(pdma_phys)); | |
119 | bpl->tus.f.bdeSize = sizeof (struct fcp_rsp); | |
120 | bpl->tus.f.bdeFlags = (BUFF_USE_CMND | BUFF_USE_RCV); | |
121 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
122 | ||
123 | /* | |
124 | * Since the IOCB for the FCP I/O is built into this lpfc_scsi_buf, | |
125 | * initialize it with all known data now. | |
126 | */ | |
127 | pdma_phys += (sizeof (struct fcp_rsp)); | |
128 | iocb = &psb->cur_iocbq.iocb; | |
129 | iocb->un.fcpi64.bdl.ulpIoTag32 = 0; | |
130 | iocb->un.fcpi64.bdl.addrHigh = putPaddrHigh(pdma_phys); | |
131 | iocb->un.fcpi64.bdl.addrLow = putPaddrLow(pdma_phys); | |
132 | iocb->un.fcpi64.bdl.bdeSize = (2 * sizeof (struct ulp_bde64)); | |
133 | iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BDL; | |
134 | iocb->ulpBdeCount = 1; | |
135 | iocb->ulpClass = CLASS3; | |
136 | ||
137 | return psb; | |
138 | } | |
139 | ||
455c53ec | 140 | static struct lpfc_scsi_buf* |
875fbdfe | 141 | lpfc_get_scsi_buf(struct lpfc_hba * phba) |
dea3101e | 142 | { |
0bd4ca25 JSEC |
143 | struct lpfc_scsi_buf * lpfc_cmd = NULL; |
144 | struct list_head *scsi_buf_list = &phba->lpfc_scsi_buf_list; | |
875fbdfe | 145 | unsigned long iflag = 0; |
0bd4ca25 | 146 | |
875fbdfe | 147 | spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); |
0bd4ca25 | 148 | list_remove_head(scsi_buf_list, lpfc_cmd, struct lpfc_scsi_buf, list); |
1dcb58e5 JS |
149 | if (lpfc_cmd) { |
150 | lpfc_cmd->seg_cnt = 0; | |
151 | lpfc_cmd->nonsg_phys = 0; | |
152 | } | |
875fbdfe | 153 | spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); |
0bd4ca25 JSEC |
154 | return lpfc_cmd; |
155 | } | |
dea3101e | 156 | |
0bd4ca25 JSEC |
157 | static void |
158 | lpfc_release_scsi_buf(struct lpfc_hba * phba, struct lpfc_scsi_buf * psb) | |
159 | { | |
875fbdfe | 160 | unsigned long iflag = 0; |
dea3101e | 161 | |
875fbdfe | 162 | spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); |
0bd4ca25 | 163 | psb->pCmd = NULL; |
dea3101e | 164 | list_add_tail(&psb->list, &phba->lpfc_scsi_buf_list); |
875fbdfe | 165 | spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); |
dea3101e JB |
166 | } |
167 | ||
168 | static int | |
169 | lpfc_scsi_prep_dma_buf(struct lpfc_hba * phba, struct lpfc_scsi_buf * lpfc_cmd) | |
170 | { | |
171 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
172 | struct scatterlist *sgel = NULL; | |
173 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
174 | struct ulp_bde64 *bpl = lpfc_cmd->fcp_bpl; | |
175 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; | |
176 | dma_addr_t physaddr; | |
177 | uint32_t i, num_bde = 0; | |
178 | int datadir = scsi_cmnd->sc_data_direction; | |
179 | int dma_error; | |
180 | ||
181 | /* | |
182 | * There are three possibilities here - use scatter-gather segment, use | |
183 | * the single mapping, or neither. Start the lpfc command prep by | |
184 | * bumping the bpl beyond the fcp_cmnd and fcp_rsp regions to the first | |
185 | * data bde entry. | |
186 | */ | |
187 | bpl += 2; | |
188 | if (scsi_cmnd->use_sg) { | |
189 | /* | |
190 | * The driver stores the segment count returned from pci_map_sg | |
191 | * because this a count of dma-mappings used to map the use_sg | |
192 | * pages. They are not guaranteed to be the same for those | |
193 | * architectures that implement an IOMMU. | |
194 | */ | |
195 | sgel = (struct scatterlist *)scsi_cmnd->request_buffer; | |
196 | lpfc_cmd->seg_cnt = dma_map_sg(&phba->pcidev->dev, sgel, | |
197 | scsi_cmnd->use_sg, datadir); | |
198 | if (lpfc_cmd->seg_cnt == 0) | |
199 | return 1; | |
200 | ||
201 | if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) { | |
202 | printk(KERN_ERR "%s: Too many sg segments from " | |
203 | "dma_map_sg. Config %d, seg_cnt %d", | |
204 | __FUNCTION__, phba->cfg_sg_seg_cnt, | |
205 | lpfc_cmd->seg_cnt); | |
206 | dma_unmap_sg(&phba->pcidev->dev, sgel, | |
207 | lpfc_cmd->seg_cnt, datadir); | |
208 | return 1; | |
209 | } | |
210 | ||
211 | /* | |
212 | * The driver established a maximum scatter-gather segment count | |
213 | * during probe that limits the number of sg elements in any | |
214 | * single scsi command. Just run through the seg_cnt and format | |
215 | * the bde's. | |
216 | */ | |
217 | for (i = 0; i < lpfc_cmd->seg_cnt; i++) { | |
218 | physaddr = sg_dma_address(sgel); | |
219 | bpl->addrLow = le32_to_cpu(putPaddrLow(physaddr)); | |
220 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(physaddr)); | |
221 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
222 | if (datadir == DMA_TO_DEVICE) | |
223 | bpl->tus.f.bdeFlags = 0; | |
224 | else | |
225 | bpl->tus.f.bdeFlags = BUFF_USE_RCV; | |
226 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
227 | bpl++; | |
228 | sgel++; | |
229 | num_bde++; | |
230 | } | |
231 | } else if (scsi_cmnd->request_buffer && scsi_cmnd->request_bufflen) { | |
232 | physaddr = dma_map_single(&phba->pcidev->dev, | |
233 | scsi_cmnd->request_buffer, | |
234 | scsi_cmnd->request_bufflen, | |
235 | datadir); | |
236 | dma_error = dma_mapping_error(physaddr); | |
237 | if (dma_error) { | |
238 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, | |
239 | "%d:0718 Unable to dma_map_single " | |
240 | "request_buffer: x%x\n", | |
241 | phba->brd_no, dma_error); | |
242 | return 1; | |
243 | } | |
244 | ||
245 | lpfc_cmd->nonsg_phys = physaddr; | |
246 | bpl->addrLow = le32_to_cpu(putPaddrLow(physaddr)); | |
247 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(physaddr)); | |
248 | bpl->tus.f.bdeSize = scsi_cmnd->request_bufflen; | |
249 | if (datadir == DMA_TO_DEVICE) | |
250 | bpl->tus.f.bdeFlags = 0; | |
483f05f0 JSEC |
251 | else |
252 | bpl->tus.f.bdeFlags = BUFF_USE_RCV; | |
dea3101e JB |
253 | bpl->tus.w = le32_to_cpu(bpl->tus.w); |
254 | num_bde = 1; | |
255 | bpl++; | |
256 | } | |
257 | ||
258 | /* | |
259 | * Finish initializing those IOCB fields that are dependent on the | |
483f05f0 JSEC |
260 | * scsi_cmnd request_buffer. Note that the bdeSize is explicitly |
261 | * reinitialized since all iocb memory resources are used many times | |
262 | * for transmit, receive, and continuation bpl's. | |
dea3101e | 263 | */ |
483f05f0 | 264 | iocb_cmd->un.fcpi64.bdl.bdeSize = (2 * sizeof (struct ulp_bde64)); |
dea3101e JB |
265 | iocb_cmd->un.fcpi64.bdl.bdeSize += |
266 | (num_bde * sizeof (struct ulp_bde64)); | |
267 | iocb_cmd->ulpBdeCount = 1; | |
268 | iocb_cmd->ulpLe = 1; | |
269 | fcp_cmnd->fcpDl = be32_to_cpu(scsi_cmnd->request_bufflen); | |
270 | return 0; | |
271 | } | |
272 | ||
bcf4dbfa JS |
273 | static void |
274 | lpfc_scsi_unprep_dma_buf(struct lpfc_hba * phba, struct lpfc_scsi_buf * psb) | |
275 | { | |
276 | /* | |
277 | * There are only two special cases to consider. (1) the scsi command | |
278 | * requested scatter-gather usage or (2) the scsi command allocated | |
279 | * a request buffer, but did not request use_sg. There is a third | |
280 | * case, but it does not require resource deallocation. | |
281 | */ | |
282 | if ((psb->seg_cnt > 0) && (psb->pCmd->use_sg)) { | |
283 | dma_unmap_sg(&phba->pcidev->dev, psb->pCmd->request_buffer, | |
284 | psb->seg_cnt, psb->pCmd->sc_data_direction); | |
285 | } else { | |
286 | if ((psb->nonsg_phys) && (psb->pCmd->request_bufflen)) { | |
287 | dma_unmap_single(&phba->pcidev->dev, psb->nonsg_phys, | |
288 | psb->pCmd->request_bufflen, | |
289 | psb->pCmd->sc_data_direction); | |
290 | } | |
291 | } | |
292 | } | |
293 | ||
dea3101e | 294 | static void |
7054a606 | 295 | lpfc_handle_fcp_err(struct lpfc_scsi_buf *lpfc_cmd, struct lpfc_iocbq *rsp_iocb) |
dea3101e JB |
296 | { |
297 | struct scsi_cmnd *cmnd = lpfc_cmd->pCmd; | |
298 | struct fcp_cmnd *fcpcmd = lpfc_cmd->fcp_cmnd; | |
299 | struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp; | |
300 | struct lpfc_hba *phba = lpfc_cmd->scsi_hba; | |
7054a606 | 301 | uint32_t fcpi_parm = rsp_iocb->iocb.un.fcpi.fcpi_parm; |
dea3101e JB |
302 | uint32_t resp_info = fcprsp->rspStatus2; |
303 | uint32_t scsi_status = fcprsp->rspStatus3; | |
c7743956 | 304 | uint32_t *lp; |
dea3101e JB |
305 | uint32_t host_status = DID_OK; |
306 | uint32_t rsplen = 0; | |
c7743956 | 307 | uint32_t logit = LOG_FCP | LOG_FCP_ERROR; |
dea3101e JB |
308 | |
309 | /* | |
310 | * If this is a task management command, there is no | |
311 | * scsi packet associated with this lpfc_cmd. The driver | |
312 | * consumes it. | |
313 | */ | |
314 | if (fcpcmd->fcpCntl2) { | |
315 | scsi_status = 0; | |
316 | goto out; | |
317 | } | |
318 | ||
c7743956 JS |
319 | if ((resp_info & SNS_LEN_VALID) && fcprsp->rspSnsLen) { |
320 | uint32_t snslen = be32_to_cpu(fcprsp->rspSnsLen); | |
321 | if (snslen > SCSI_SENSE_BUFFERSIZE) | |
322 | snslen = SCSI_SENSE_BUFFERSIZE; | |
323 | ||
324 | if (resp_info & RSP_LEN_VALID) | |
325 | rsplen = be32_to_cpu(fcprsp->rspRspLen); | |
326 | memcpy(cmnd->sense_buffer, &fcprsp->rspInfo0 + rsplen, snslen); | |
327 | } | |
328 | lp = (uint32_t *)cmnd->sense_buffer; | |
329 | ||
330 | if (!scsi_status && (resp_info & RESID_UNDER)) | |
331 | logit = LOG_FCP; | |
332 | ||
333 | lpfc_printf_log(phba, KERN_WARNING, logit, | |
334 | "%d:0730 FCP command x%x failed: x%x SNS x%x x%x " | |
335 | "Data: x%x x%x x%x x%x x%x\n", | |
336 | phba->brd_no, cmnd->cmnd[0], scsi_status, | |
337 | be32_to_cpu(*lp), be32_to_cpu(*(lp + 3)), resp_info, | |
dea3101e JB |
338 | be32_to_cpu(fcprsp->rspResId), |
339 | be32_to_cpu(fcprsp->rspSnsLen), | |
340 | be32_to_cpu(fcprsp->rspRspLen), | |
341 | fcprsp->rspInfo3); | |
342 | ||
343 | if (resp_info & RSP_LEN_VALID) { | |
344 | rsplen = be32_to_cpu(fcprsp->rspRspLen); | |
345 | if ((rsplen != 0 && rsplen != 4 && rsplen != 8) || | |
346 | (fcprsp->rspInfo3 != RSP_NO_FAILURE)) { | |
347 | host_status = DID_ERROR; | |
348 | goto out; | |
349 | } | |
350 | } | |
351 | ||
dea3101e JB |
352 | cmnd->resid = 0; |
353 | if (resp_info & RESID_UNDER) { | |
354 | cmnd->resid = be32_to_cpu(fcprsp->rspResId); | |
355 | ||
356 | lpfc_printf_log(phba, KERN_INFO, LOG_FCP, | |
357 | "%d:0716 FCP Read Underrun, expected %d, " | |
358 | "residual %d Data: x%x x%x x%x\n", phba->brd_no, | |
359 | be32_to_cpu(fcpcmd->fcpDl), cmnd->resid, | |
360 | fcpi_parm, cmnd->cmnd[0], cmnd->underflow); | |
361 | ||
7054a606 JS |
362 | /* |
363 | * If there is an under run check if under run reported by | |
364 | * storage array is same as the under run reported by HBA. | |
365 | * If this is not same, there is a dropped frame. | |
366 | */ | |
367 | if ((cmnd->sc_data_direction == DMA_FROM_DEVICE) && | |
368 | fcpi_parm && | |
369 | (cmnd->resid != fcpi_parm)) { | |
370 | lpfc_printf_log(phba, KERN_WARNING, | |
371 | LOG_FCP | LOG_FCP_ERROR, | |
372 | "%d:0735 FCP Read Check Error and Underrun " | |
373 | "Data: x%x x%x x%x x%x\n", phba->brd_no, | |
374 | be32_to_cpu(fcpcmd->fcpDl), | |
375 | cmnd->resid, | |
376 | fcpi_parm, cmnd->cmnd[0]); | |
377 | cmnd->resid = cmnd->request_bufflen; | |
378 | host_status = DID_ERROR; | |
379 | } | |
dea3101e JB |
380 | /* |
381 | * The cmnd->underflow is the minimum number of bytes that must | |
382 | * be transfered for this command. Provided a sense condition | |
383 | * is not present, make sure the actual amount transferred is at | |
384 | * least the underflow value or fail. | |
385 | */ | |
386 | if (!(resp_info & SNS_LEN_VALID) && | |
387 | (scsi_status == SAM_STAT_GOOD) && | |
388 | (cmnd->request_bufflen - cmnd->resid) < cmnd->underflow) { | |
389 | lpfc_printf_log(phba, KERN_INFO, LOG_FCP, | |
390 | "%d:0717 FCP command x%x residual " | |
391 | "underrun converted to error " | |
392 | "Data: x%x x%x x%x\n", phba->brd_no, | |
393 | cmnd->cmnd[0], cmnd->request_bufflen, | |
394 | cmnd->resid, cmnd->underflow); | |
395 | ||
396 | host_status = DID_ERROR; | |
397 | } | |
398 | } else if (resp_info & RESID_OVER) { | |
399 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP, | |
400 | "%d:0720 FCP command x%x residual " | |
401 | "overrun error. Data: x%x x%x \n", | |
402 | phba->brd_no, cmnd->cmnd[0], | |
403 | cmnd->request_bufflen, cmnd->resid); | |
404 | host_status = DID_ERROR; | |
405 | ||
406 | /* | |
407 | * Check SLI validation that all the transfer was actually done | |
408 | * (fcpi_parm should be zero). Apply check only to reads. | |
409 | */ | |
410 | } else if ((scsi_status == SAM_STAT_GOOD) && fcpi_parm && | |
411 | (cmnd->sc_data_direction == DMA_FROM_DEVICE)) { | |
c7743956 | 412 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_FCP_ERROR, |
dea3101e JB |
413 | "%d:0734 FCP Read Check Error Data: " |
414 | "x%x x%x x%x x%x\n", phba->brd_no, | |
415 | be32_to_cpu(fcpcmd->fcpDl), | |
416 | be32_to_cpu(fcprsp->rspResId), | |
417 | fcpi_parm, cmnd->cmnd[0]); | |
418 | host_status = DID_ERROR; | |
419 | cmnd->resid = cmnd->request_bufflen; | |
420 | } | |
421 | ||
422 | out: | |
423 | cmnd->result = ScsiResult(host_status, scsi_status); | |
424 | } | |
425 | ||
426 | static void | |
427 | lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn, | |
428 | struct lpfc_iocbq *pIocbOut) | |
429 | { | |
430 | struct lpfc_scsi_buf *lpfc_cmd = | |
431 | (struct lpfc_scsi_buf *) pIocbIn->context1; | |
432 | struct lpfc_rport_data *rdata = lpfc_cmd->rdata; | |
433 | struct lpfc_nodelist *pnode = rdata->pnode; | |
434 | struct scsi_cmnd *cmd = lpfc_cmd->pCmd; | |
445cf4f4 JSEC |
435 | int result; |
436 | struct scsi_device *sdev, *tmp_sdev; | |
437 | int depth = 0; | |
dea3101e JB |
438 | |
439 | lpfc_cmd->result = pIocbOut->iocb.un.ulpWord[4]; | |
440 | lpfc_cmd->status = pIocbOut->iocb.ulpStatus; | |
441 | ||
442 | if (lpfc_cmd->status) { | |
443 | if (lpfc_cmd->status == IOSTAT_LOCAL_REJECT && | |
444 | (lpfc_cmd->result & IOERR_DRVR_MASK)) | |
445 | lpfc_cmd->status = IOSTAT_DRIVER_REJECT; | |
446 | else if (lpfc_cmd->status >= IOSTAT_CNT) | |
447 | lpfc_cmd->status = IOSTAT_DEFAULT; | |
448 | ||
449 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP, | |
450 | "%d:0729 FCP cmd x%x failed <%d/%d> status: " | |
451 | "x%x result: x%x Data: x%x x%x\n", | |
452 | phba->brd_no, cmd->cmnd[0], cmd->device->id, | |
453 | cmd->device->lun, lpfc_cmd->status, | |
454 | lpfc_cmd->result, pIocbOut->iocb.ulpContext, | |
455 | lpfc_cmd->cur_iocbq.iocb.ulpIoTag); | |
456 | ||
457 | switch (lpfc_cmd->status) { | |
458 | case IOSTAT_FCP_RSP_ERROR: | |
459 | /* Call FCP RSP handler to determine result */ | |
7054a606 | 460 | lpfc_handle_fcp_err(lpfc_cmd,pIocbOut); |
dea3101e JB |
461 | break; |
462 | case IOSTAT_NPORT_BSY: | |
463 | case IOSTAT_FABRIC_BSY: | |
464 | cmd->result = ScsiResult(DID_BUS_BUSY, 0); | |
465 | break; | |
466 | default: | |
467 | cmd->result = ScsiResult(DID_ERROR, 0); | |
468 | break; | |
469 | } | |
470 | ||
19a7b4ae JSEC |
471 | if ((pnode == NULL ) |
472 | || (pnode->nlp_state != NLP_STE_MAPPED_NODE)) | |
473 | cmd->result = ScsiResult(DID_BUS_BUSY, SAM_STAT_BUSY); | |
dea3101e JB |
474 | } else { |
475 | cmd->result = ScsiResult(DID_OK, 0); | |
476 | } | |
477 | ||
478 | if (cmd->result || lpfc_cmd->fcp_rsp->rspSnsLen) { | |
479 | uint32_t *lp = (uint32_t *)cmd->sense_buffer; | |
480 | ||
481 | lpfc_printf_log(phba, KERN_INFO, LOG_FCP, | |
482 | "%d:0710 Iodone <%d/%d> cmd %p, error x%x " | |
483 | "SNS x%x x%x Data: x%x x%x\n", | |
484 | phba->brd_no, cmd->device->id, | |
485 | cmd->device->lun, cmd, cmd->result, | |
486 | *lp, *(lp + 3), cmd->retries, cmd->resid); | |
487 | } | |
488 | ||
445cf4f4 JSEC |
489 | result = cmd->result; |
490 | sdev = cmd->device; | |
1dcb58e5 | 491 | lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd); |
0bd4ca25 JSEC |
492 | cmd->scsi_done(cmd); |
493 | ||
b808608b JW |
494 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { |
495 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
496 | return; | |
497 | } | |
498 | ||
0c6ac8ef | 499 | if (!result && pnode != NULL && |
445cf4f4 JSEC |
500 | ((jiffies - pnode->last_ramp_up_time) > |
501 | LPFC_Q_RAMP_UP_INTERVAL * HZ) && | |
502 | ((jiffies - pnode->last_q_full_time) > | |
503 | LPFC_Q_RAMP_UP_INTERVAL * HZ) && | |
504 | (phba->cfg_lun_queue_depth > sdev->queue_depth)) { | |
505 | shost_for_each_device(tmp_sdev, sdev->host) { | |
506 | if (phba->cfg_lun_queue_depth > tmp_sdev->queue_depth) { | |
507 | if (tmp_sdev->id != sdev->id) | |
508 | continue; | |
509 | if (tmp_sdev->ordered_tags) | |
510 | scsi_adjust_queue_depth(tmp_sdev, | |
511 | MSG_ORDERED_TAG, | |
512 | tmp_sdev->queue_depth+1); | |
513 | else | |
514 | scsi_adjust_queue_depth(tmp_sdev, | |
515 | MSG_SIMPLE_TAG, | |
516 | tmp_sdev->queue_depth+1); | |
517 | ||
518 | pnode->last_ramp_up_time = jiffies; | |
519 | } | |
520 | } | |
521 | } | |
522 | ||
523 | /* | |
524 | * Check for queue full. If the lun is reporting queue full, then | |
525 | * back off the lun queue depth to prevent target overloads. | |
526 | */ | |
0c6ac8ef | 527 | if (result == SAM_STAT_TASK_SET_FULL && pnode != NULL) { |
445cf4f4 JSEC |
528 | pnode->last_q_full_time = jiffies; |
529 | ||
530 | shost_for_each_device(tmp_sdev, sdev->host) { | |
531 | if (tmp_sdev->id != sdev->id) | |
532 | continue; | |
533 | depth = scsi_track_queue_full(tmp_sdev, | |
534 | tmp_sdev->queue_depth - 1); | |
535 | } | |
536 | /* | |
537 | * The queue depth cannot be lowered any more. | |
538 | * Modify the returned error code to store | |
539 | * the final depth value set by | |
540 | * scsi_track_queue_full. | |
541 | */ | |
542 | if (depth == -1) | |
543 | depth = sdev->host->cmd_per_lun; | |
544 | ||
545 | if (depth) { | |
546 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP, | |
547 | "%d:0711 detected queue full - lun queue depth " | |
548 | " adjusted to %d.\n", phba->brd_no, depth); | |
549 | } | |
550 | } | |
551 | ||
0bd4ca25 | 552 | lpfc_release_scsi_buf(phba, lpfc_cmd); |
dea3101e JB |
553 | } |
554 | ||
555 | static void | |
556 | lpfc_scsi_prep_cmnd(struct lpfc_hba * phba, struct lpfc_scsi_buf * lpfc_cmd, | |
557 | struct lpfc_nodelist *pnode) | |
558 | { | |
559 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
560 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
561 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; | |
562 | struct lpfc_iocbq *piocbq = &(lpfc_cmd->cur_iocbq); | |
563 | int datadir = scsi_cmnd->sc_data_direction; | |
564 | ||
565 | lpfc_cmd->fcp_rsp->rspSnsLen = 0; | |
69859dc4 JSEC |
566 | /* clear task management bits */ |
567 | lpfc_cmd->fcp_cmnd->fcpCntl2 = 0; | |
dea3101e | 568 | |
91886523 JSEC |
569 | int_to_scsilun(lpfc_cmd->pCmd->device->lun, |
570 | &lpfc_cmd->fcp_cmnd->fcp_lun); | |
dea3101e JB |
571 | |
572 | memcpy(&fcp_cmnd->fcpCdb[0], scsi_cmnd->cmnd, 16); | |
573 | ||
574 | if (scsi_cmnd->device->tagged_supported) { | |
575 | switch (scsi_cmnd->tag) { | |
576 | case HEAD_OF_QUEUE_TAG: | |
577 | fcp_cmnd->fcpCntl1 = HEAD_OF_Q; | |
578 | break; | |
579 | case ORDERED_QUEUE_TAG: | |
580 | fcp_cmnd->fcpCntl1 = ORDERED_Q; | |
581 | break; | |
582 | default: | |
583 | fcp_cmnd->fcpCntl1 = SIMPLE_Q; | |
584 | break; | |
585 | } | |
586 | } else | |
587 | fcp_cmnd->fcpCntl1 = 0; | |
588 | ||
589 | /* | |
590 | * There are three possibilities here - use scatter-gather segment, use | |
591 | * the single mapping, or neither. Start the lpfc command prep by | |
592 | * bumping the bpl beyond the fcp_cmnd and fcp_rsp regions to the first | |
593 | * data bde entry. | |
594 | */ | |
595 | if (scsi_cmnd->use_sg) { | |
596 | if (datadir == DMA_TO_DEVICE) { | |
597 | iocb_cmd->ulpCommand = CMD_FCP_IWRITE64_CR; | |
598 | iocb_cmd->un.fcpi.fcpi_parm = 0; | |
599 | iocb_cmd->ulpPU = 0; | |
600 | fcp_cmnd->fcpCntl3 = WRITE_DATA; | |
601 | phba->fc4OutputRequests++; | |
602 | } else { | |
603 | iocb_cmd->ulpCommand = CMD_FCP_IREAD64_CR; | |
604 | iocb_cmd->ulpPU = PARM_READ_CHECK; | |
605 | iocb_cmd->un.fcpi.fcpi_parm = | |
606 | scsi_cmnd->request_bufflen; | |
607 | fcp_cmnd->fcpCntl3 = READ_DATA; | |
608 | phba->fc4InputRequests++; | |
609 | } | |
610 | } else if (scsi_cmnd->request_buffer && scsi_cmnd->request_bufflen) { | |
611 | if (datadir == DMA_TO_DEVICE) { | |
612 | iocb_cmd->ulpCommand = CMD_FCP_IWRITE64_CR; | |
613 | iocb_cmd->un.fcpi.fcpi_parm = 0; | |
614 | iocb_cmd->ulpPU = 0; | |
615 | fcp_cmnd->fcpCntl3 = WRITE_DATA; | |
616 | phba->fc4OutputRequests++; | |
617 | } else { | |
618 | iocb_cmd->ulpCommand = CMD_FCP_IREAD64_CR; | |
619 | iocb_cmd->ulpPU = PARM_READ_CHECK; | |
620 | iocb_cmd->un.fcpi.fcpi_parm = | |
621 | scsi_cmnd->request_bufflen; | |
622 | fcp_cmnd->fcpCntl3 = READ_DATA; | |
623 | phba->fc4InputRequests++; | |
624 | } | |
625 | } else { | |
626 | iocb_cmd->ulpCommand = CMD_FCP_ICMND64_CR; | |
627 | iocb_cmd->un.fcpi.fcpi_parm = 0; | |
628 | iocb_cmd->ulpPU = 0; | |
629 | fcp_cmnd->fcpCntl3 = 0; | |
630 | phba->fc4ControlRequests++; | |
631 | } | |
632 | ||
633 | /* | |
634 | * Finish initializing those IOCB fields that are independent | |
635 | * of the scsi_cmnd request_buffer | |
636 | */ | |
637 | piocbq->iocb.ulpContext = pnode->nlp_rpi; | |
638 | if (pnode->nlp_fcp_info & NLP_FCP_2_DEVICE) | |
639 | piocbq->iocb.ulpFCP2Rcvy = 1; | |
640 | ||
641 | piocbq->iocb.ulpClass = (pnode->nlp_fcp_info & 0x0f); | |
642 | piocbq->context1 = lpfc_cmd; | |
643 | piocbq->iocb_cmpl = lpfc_scsi_cmd_iocb_cmpl; | |
644 | piocbq->iocb.ulpTimeout = lpfc_cmd->timeout; | |
645 | } | |
646 | ||
647 | static int | |
648 | lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_hba *phba, | |
649 | struct lpfc_scsi_buf *lpfc_cmd, | |
420b630d | 650 | unsigned int lun, |
dea3101e JB |
651 | uint8_t task_mgmt_cmd) |
652 | { | |
653 | struct lpfc_sli *psli; | |
654 | struct lpfc_iocbq *piocbq; | |
655 | IOCB_t *piocb; | |
656 | struct fcp_cmnd *fcp_cmnd; | |
0b18ac42 | 657 | struct lpfc_rport_data *rdata = lpfc_cmd->rdata; |
dea3101e JB |
658 | struct lpfc_nodelist *ndlp = rdata->pnode; |
659 | ||
19a7b4ae | 660 | if ((ndlp == NULL) || (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) { |
dea3101e JB |
661 | return 0; |
662 | } | |
663 | ||
664 | psli = &phba->sli; | |
665 | piocbq = &(lpfc_cmd->cur_iocbq); | |
666 | piocb = &piocbq->iocb; | |
667 | ||
668 | fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
420b630d | 669 | int_to_scsilun(lun, &lpfc_cmd->fcp_cmnd->fcp_lun); |
dea3101e JB |
670 | fcp_cmnd->fcpCntl2 = task_mgmt_cmd; |
671 | ||
672 | piocb->ulpCommand = CMD_FCP_ICMND64_CR; | |
673 | ||
674 | piocb->ulpContext = ndlp->nlp_rpi; | |
675 | if (ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) { | |
676 | piocb->ulpFCP2Rcvy = 1; | |
677 | } | |
678 | piocb->ulpClass = (ndlp->nlp_fcp_info & 0x0f); | |
679 | ||
680 | /* ulpTimeout is only one byte */ | |
681 | if (lpfc_cmd->timeout > 0xff) { | |
682 | /* | |
683 | * Do not timeout the command at the firmware level. | |
684 | * The driver will provide the timeout mechanism. | |
685 | */ | |
686 | piocb->ulpTimeout = 0; | |
687 | } else { | |
688 | piocb->ulpTimeout = lpfc_cmd->timeout; | |
689 | } | |
690 | ||
dea3101e JB |
691 | return (1); |
692 | } | |
693 | ||
7054a606 JS |
694 | static void |
695 | lpfc_tskmgmt_def_cmpl(struct lpfc_hba *phba, | |
696 | struct lpfc_iocbq *cmdiocbq, | |
697 | struct lpfc_iocbq *rspiocbq) | |
698 | { | |
699 | struct lpfc_scsi_buf *lpfc_cmd = | |
700 | (struct lpfc_scsi_buf *) cmdiocbq->context1; | |
701 | if (lpfc_cmd) | |
702 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
703 | return; | |
704 | } | |
705 | ||
dea3101e | 706 | static int |
0b18ac42 | 707 | lpfc_scsi_tgt_reset(struct lpfc_scsi_buf * lpfc_cmd, struct lpfc_hba * phba, |
420b630d JS |
708 | unsigned tgt_id, unsigned int lun, |
709 | struct lpfc_rport_data *rdata) | |
dea3101e JB |
710 | { |
711 | struct lpfc_iocbq *iocbq; | |
0bd4ca25 | 712 | struct lpfc_iocbq *iocbqrsp; |
dea3101e JB |
713 | int ret; |
714 | ||
f5603511 JS |
715 | if (!rdata->pnode) |
716 | return FAILED; | |
717 | ||
0b18ac42 | 718 | lpfc_cmd->rdata = rdata; |
420b630d JS |
719 | ret = lpfc_scsi_prep_task_mgmt_cmd(phba, lpfc_cmd, lun, |
720 | FCP_TARGET_RESET); | |
dea3101e JB |
721 | if (!ret) |
722 | return FAILED; | |
723 | ||
724 | lpfc_cmd->scsi_hba = phba; | |
725 | iocbq = &lpfc_cmd->cur_iocbq; | |
0bd4ca25 JSEC |
726 | iocbqrsp = lpfc_sli_get_iocbq(phba); |
727 | ||
dea3101e JB |
728 | if (!iocbqrsp) |
729 | return FAILED; | |
dea3101e | 730 | |
0b18ac42 JS |
731 | /* Issue Target Reset to TGT <num> */ |
732 | lpfc_printf_log(phba, KERN_INFO, LOG_FCP, | |
733 | "%d:0702 Issue Target Reset to TGT %d " | |
734 | "Data: x%x x%x\n", | |
735 | phba->brd_no, tgt_id, rdata->pnode->nlp_rpi, | |
736 | rdata->pnode->nlp_flag); | |
737 | ||
68876920 JSEC |
738 | ret = lpfc_sli_issue_iocb_wait(phba, |
739 | &phba->sli.ring[phba->sli.fcp_ring], | |
740 | iocbq, iocbqrsp, lpfc_cmd->timeout); | |
dea3101e | 741 | if (ret != IOCB_SUCCESS) { |
7054a606 JS |
742 | if (ret == IOCB_TIMEDOUT) |
743 | iocbq->iocb_cmpl = lpfc_tskmgmt_def_cmpl; | |
dea3101e | 744 | lpfc_cmd->status = IOSTAT_DRIVER_REJECT; |
dea3101e JB |
745 | } else { |
746 | ret = SUCCESS; | |
747 | lpfc_cmd->result = iocbqrsp->iocb.un.ulpWord[4]; | |
748 | lpfc_cmd->status = iocbqrsp->iocb.ulpStatus; | |
749 | if (lpfc_cmd->status == IOSTAT_LOCAL_REJECT && | |
750 | (lpfc_cmd->result & IOERR_DRVR_MASK)) | |
751 | lpfc_cmd->status = IOSTAT_DRIVER_REJECT; | |
752 | } | |
753 | ||
604a3e30 | 754 | lpfc_sli_release_iocbq(phba, iocbqrsp); |
dea3101e JB |
755 | return ret; |
756 | } | |
757 | ||
dea3101e JB |
758 | const char * |
759 | lpfc_info(struct Scsi_Host *host) | |
760 | { | |
7f0b5b19 | 761 | struct lpfc_hba *phba = (struct lpfc_hba *) host->hostdata; |
dea3101e JB |
762 | int len; |
763 | static char lpfcinfobuf[384]; | |
764 | ||
765 | memset(lpfcinfobuf,0,384); | |
766 | if (phba && phba->pcidev){ | |
767 | strncpy(lpfcinfobuf, phba->ModelDesc, 256); | |
768 | len = strlen(lpfcinfobuf); | |
769 | snprintf(lpfcinfobuf + len, | |
770 | 384-len, | |
771 | " on PCI bus %02x device %02x irq %d", | |
772 | phba->pcidev->bus->number, | |
773 | phba->pcidev->devfn, | |
774 | phba->pcidev->irq); | |
775 | len = strlen(lpfcinfobuf); | |
776 | if (phba->Port[0]) { | |
777 | snprintf(lpfcinfobuf + len, | |
778 | 384-len, | |
779 | " port %s", | |
780 | phba->Port); | |
781 | } | |
782 | } | |
783 | return lpfcinfobuf; | |
784 | } | |
785 | ||
875fbdfe JSEC |
786 | static __inline__ void lpfc_poll_rearm_timer(struct lpfc_hba * phba) |
787 | { | |
788 | unsigned long poll_tmo_expires = | |
789 | (jiffies + msecs_to_jiffies(phba->cfg_poll_tmo)); | |
790 | ||
791 | if (phba->sli.ring[LPFC_FCP_RING].txcmplq_cnt) | |
792 | mod_timer(&phba->fcp_poll_timer, | |
793 | poll_tmo_expires); | |
794 | } | |
795 | ||
796 | void lpfc_poll_start_timer(struct lpfc_hba * phba) | |
797 | { | |
798 | lpfc_poll_rearm_timer(phba); | |
799 | } | |
800 | ||
801 | void lpfc_poll_timeout(unsigned long ptr) | |
802 | { | |
803 | struct lpfc_hba *phba = (struct lpfc_hba *)ptr; | |
804 | unsigned long iflag; | |
805 | ||
806 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
807 | ||
808 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { | |
809 | lpfc_sli_poll_fcp_ring (phba); | |
810 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) | |
811 | lpfc_poll_rearm_timer(phba); | |
812 | } | |
813 | ||
814 | spin_unlock_irqrestore(phba->host->host_lock, iflag); | |
815 | } | |
816 | ||
dea3101e JB |
817 | static int |
818 | lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *)) | |
819 | { | |
820 | struct lpfc_hba *phba = | |
7f0b5b19 | 821 | (struct lpfc_hba *) cmnd->device->host->hostdata; |
dea3101e JB |
822 | struct lpfc_sli *psli = &phba->sli; |
823 | struct lpfc_rport_data *rdata = cmnd->device->hostdata; | |
824 | struct lpfc_nodelist *ndlp = rdata->pnode; | |
0bd4ca25 | 825 | struct lpfc_scsi_buf *lpfc_cmd; |
19a7b4ae | 826 | struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); |
19a7b4ae | 827 | int err; |
dea3101e | 828 | |
19a7b4ae JSEC |
829 | err = fc_remote_port_chkready(rport); |
830 | if (err) { | |
831 | cmnd->result = err; | |
dea3101e JB |
832 | goto out_fail_command; |
833 | } | |
834 | ||
835 | /* | |
19a7b4ae JSEC |
836 | * Catch race where our node has transitioned, but the |
837 | * transport is still transitioning. | |
dea3101e | 838 | */ |
19a7b4ae JSEC |
839 | if (!ndlp) { |
840 | cmnd->result = ScsiResult(DID_BUS_BUSY, 0); | |
841 | goto out_fail_command; | |
dea3101e | 842 | } |
875fbdfe | 843 | lpfc_cmd = lpfc_get_scsi_buf (phba); |
dea3101e | 844 | if (lpfc_cmd == NULL) { |
1de933f3 JSEC |
845 | lpfc_printf_log(phba, KERN_INFO, LOG_FCP, |
846 | "%d:0707 driver's buffer pool is empty, " | |
847 | "IO busied\n", phba->brd_no); | |
dea3101e JB |
848 | goto out_host_busy; |
849 | } | |
850 | ||
851 | /* | |
852 | * Store the midlayer's command structure for the completion phase | |
853 | * and complete the command initialization. | |
854 | */ | |
855 | lpfc_cmd->pCmd = cmnd; | |
856 | lpfc_cmd->rdata = rdata; | |
857 | lpfc_cmd->timeout = 0; | |
858 | cmnd->host_scribble = (unsigned char *)lpfc_cmd; | |
859 | cmnd->scsi_done = done; | |
860 | ||
861 | err = lpfc_scsi_prep_dma_buf(phba, lpfc_cmd); | |
862 | if (err) | |
863 | goto out_host_busy_free_buf; | |
864 | ||
865 | lpfc_scsi_prep_cmnd(phba, lpfc_cmd, ndlp); | |
866 | ||
867 | err = lpfc_sli_issue_iocb(phba, &phba->sli.ring[psli->fcp_ring], | |
868 | &lpfc_cmd->cur_iocbq, SLI_IOCB_RET_IOCB); | |
869 | if (err) | |
870 | goto out_host_busy_free_buf; | |
875fbdfe JSEC |
871 | |
872 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { | |
873 | lpfc_sli_poll_fcp_ring(phba); | |
874 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) | |
875 | lpfc_poll_rearm_timer(phba); | |
876 | } | |
877 | ||
dea3101e JB |
878 | return 0; |
879 | ||
880 | out_host_busy_free_buf: | |
bcf4dbfa | 881 | lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd); |
0bd4ca25 | 882 | lpfc_release_scsi_buf(phba, lpfc_cmd); |
dea3101e JB |
883 | out_host_busy: |
884 | return SCSI_MLQUEUE_HOST_BUSY; | |
885 | ||
886 | out_fail_command: | |
887 | done(cmnd); | |
888 | return 0; | |
889 | } | |
890 | ||
a90f5684 JS |
891 | static void |
892 | lpfc_block_error_handler(struct scsi_cmnd *cmnd) | |
893 | { | |
894 | struct Scsi_Host *shost = cmnd->device->host; | |
895 | struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); | |
896 | ||
897 | spin_lock_irq(shost->host_lock); | |
898 | while (rport->port_state == FC_PORTSTATE_BLOCKED) { | |
899 | spin_unlock_irq(shost->host_lock); | |
900 | msleep(1000); | |
901 | spin_lock_irq(shost->host_lock); | |
902 | } | |
903 | spin_unlock_irq(shost->host_lock); | |
904 | return; | |
905 | } | |
63c59c3b | 906 | |
dea3101e | 907 | static int |
63c59c3b | 908 | lpfc_abort_handler(struct scsi_cmnd *cmnd) |
dea3101e | 909 | { |
63c59c3b | 910 | struct Scsi_Host *shost = cmnd->device->host; |
7f0b5b19 | 911 | struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata; |
dea3101e | 912 | struct lpfc_sli_ring *pring = &phba->sli.ring[phba->sli.fcp_ring]; |
0bd4ca25 JSEC |
913 | struct lpfc_iocbq *iocb; |
914 | struct lpfc_iocbq *abtsiocb; | |
dea3101e | 915 | struct lpfc_scsi_buf *lpfc_cmd; |
dea3101e | 916 | IOCB_t *cmd, *icmd; |
dea3101e | 917 | unsigned int loop_count = 0; |
0bd4ca25 | 918 | int ret = SUCCESS; |
dea3101e | 919 | |
a90f5684 | 920 | lpfc_block_error_handler(cmnd); |
63c59c3b | 921 | spin_lock_irq(shost->host_lock); |
dea3101e | 922 | |
0bd4ca25 JSEC |
923 | lpfc_cmd = (struct lpfc_scsi_buf *)cmnd->host_scribble; |
924 | BUG_ON(!lpfc_cmd); | |
dea3101e | 925 | |
0bd4ca25 JSEC |
926 | /* |
927 | * If pCmd field of the corresponding lpfc_scsi_buf structure | |
928 | * points to a different SCSI command, then the driver has | |
929 | * already completed this command, but the midlayer did not | |
930 | * see the completion before the eh fired. Just return | |
931 | * SUCCESS. | |
932 | */ | |
933 | iocb = &lpfc_cmd->cur_iocbq; | |
934 | if (lpfc_cmd->pCmd != cmnd) | |
935 | goto out; | |
dea3101e | 936 | |
0bd4ca25 | 937 | BUG_ON(iocb->context1 != lpfc_cmd); |
dea3101e | 938 | |
0bd4ca25 JSEC |
939 | abtsiocb = lpfc_sli_get_iocbq(phba); |
940 | if (abtsiocb == NULL) { | |
941 | ret = FAILED; | |
dea3101e JB |
942 | goto out; |
943 | } | |
944 | ||
dea3101e | 945 | /* |
0bd4ca25 JSEC |
946 | * The scsi command can not be in txq and it is in flight because the |
947 | * pCmd is still pointig at the SCSI command we have to abort. There | |
948 | * is no need to search the txcmplq. Just send an abort to the FW. | |
dea3101e | 949 | */ |
dea3101e | 950 | |
0bd4ca25 JSEC |
951 | cmd = &iocb->iocb; |
952 | icmd = &abtsiocb->iocb; | |
953 | icmd->un.acxri.abortType = ABORT_TYPE_ABTS; | |
954 | icmd->un.acxri.abortContextTag = cmd->ulpContext; | |
955 | icmd->un.acxri.abortIoTag = cmd->ulpIoTag; | |
dea3101e | 956 | |
0bd4ca25 JSEC |
957 | icmd->ulpLe = 1; |
958 | icmd->ulpClass = cmd->ulpClass; | |
959 | if (phba->hba_state >= LPFC_LINK_UP) | |
960 | icmd->ulpCommand = CMD_ABORT_XRI_CN; | |
961 | else | |
962 | icmd->ulpCommand = CMD_CLOSE_XRI_CN; | |
dea3101e | 963 | |
0bd4ca25 JSEC |
964 | abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl; |
965 | if (lpfc_sli_issue_iocb(phba, pring, abtsiocb, 0) == IOCB_ERROR) { | |
966 | lpfc_sli_release_iocbq(phba, abtsiocb); | |
967 | ret = FAILED; | |
968 | goto out; | |
969 | } | |
dea3101e | 970 | |
875fbdfe JSEC |
971 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
972 | lpfc_sli_poll_fcp_ring (phba); | |
973 | ||
0bd4ca25 JSEC |
974 | /* Wait for abort to complete */ |
975 | while (lpfc_cmd->pCmd == cmnd) | |
976 | { | |
875fbdfe JSEC |
977 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
978 | lpfc_sli_poll_fcp_ring (phba); | |
979 | ||
0bd4ca25 | 980 | spin_unlock_irq(phba->host->host_lock); |
a9a3047d | 981 | schedule_timeout_uninterruptible(LPFC_ABORT_WAIT*HZ); |
0bd4ca25 JSEC |
982 | spin_lock_irq(phba->host->host_lock); |
983 | if (++loop_count | |
c01f3208 | 984 | > (2 * phba->cfg_devloss_tmo)/LPFC_ABORT_WAIT) |
0bd4ca25 JSEC |
985 | break; |
986 | } | |
dea3101e | 987 | |
0bd4ca25 JSEC |
988 | if (lpfc_cmd->pCmd == cmnd) { |
989 | ret = FAILED; | |
990 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, | |
991 | "%d:0748 abort handler timed out waiting for " | |
992 | "abort to complete: ret %#x, ID %d, LUN %d, " | |
993 | "snum %#lx\n", | |
994 | phba->brd_no, ret, cmnd->device->id, | |
995 | cmnd->device->lun, cmnd->serial_number); | |
dea3101e JB |
996 | } |
997 | ||
998 | out: | |
999 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP, | |
1de933f3 JSEC |
1000 | "%d:0749 SCSI Layer I/O Abort Request " |
1001 | "Status x%x ID %d LUN %d snum %#lx\n", | |
0bd4ca25 JSEC |
1002 | phba->brd_no, ret, cmnd->device->id, |
1003 | cmnd->device->lun, cmnd->serial_number); | |
dea3101e | 1004 | |
63c59c3b | 1005 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1006 | |
63c59c3b | 1007 | return ret; |
8fa728a2 JG |
1008 | } |
1009 | ||
dea3101e | 1010 | static int |
7054a606 | 1011 | lpfc_device_reset_handler(struct scsi_cmnd *cmnd) |
dea3101e JB |
1012 | { |
1013 | struct Scsi_Host *shost = cmnd->device->host; | |
7f0b5b19 | 1014 | struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata; |
0bd4ca25 JSEC |
1015 | struct lpfc_scsi_buf *lpfc_cmd; |
1016 | struct lpfc_iocbq *iocbq, *iocbqrsp; | |
dea3101e JB |
1017 | struct lpfc_rport_data *rdata = cmnd->device->hostdata; |
1018 | struct lpfc_nodelist *pnode = rdata->pnode; | |
6175c02a | 1019 | uint32_t cmd_result = 0, cmd_status = 0; |
dea3101e | 1020 | int ret = FAILED; |
7054a606 | 1021 | int iocb_status = IOCB_SUCCESS; |
dea3101e JB |
1022 | int cnt, loopcnt; |
1023 | ||
a90f5684 | 1024 | lpfc_block_error_handler(cmnd); |
63c59c3b | 1025 | spin_lock_irq(shost->host_lock); |
f5603511 | 1026 | loopcnt = 0; |
dea3101e JB |
1027 | /* |
1028 | * If target is not in a MAPPED state, delay the reset until | |
c01f3208 | 1029 | * target is rediscovered or devloss timeout expires. |
dea3101e JB |
1030 | */ |
1031 | while ( 1 ) { | |
1032 | if (!pnode) | |
7054a606 | 1033 | goto out; |
dea3101e JB |
1034 | |
1035 | if (pnode->nlp_state != NLP_STE_MAPPED_NODE) { | |
1036 | spin_unlock_irq(phba->host->host_lock); | |
a9a3047d | 1037 | schedule_timeout_uninterruptible(msecs_to_jiffies(500)); |
dea3101e | 1038 | spin_lock_irq(phba->host->host_lock); |
f5603511 JS |
1039 | loopcnt++; |
1040 | rdata = cmnd->device->hostdata; | |
1041 | if (!rdata || | |
1042 | (loopcnt > ((phba->cfg_devloss_tmo * 2) + 1))) { | |
1043 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, | |
1044 | "%d:0721 LUN Reset rport failure:" | |
1045 | " cnt x%x rdata x%p\n", | |
1046 | phba->brd_no, loopcnt, rdata); | |
1047 | goto out; | |
1048 | } | |
1049 | pnode = rdata->pnode; | |
1050 | if (!pnode) | |
7054a606 | 1051 | goto out; |
dea3101e | 1052 | } |
f5603511 | 1053 | if (pnode->nlp_state == NLP_STE_MAPPED_NODE) |
dea3101e JB |
1054 | break; |
1055 | } | |
1056 | ||
875fbdfe | 1057 | lpfc_cmd = lpfc_get_scsi_buf (phba); |
dea3101e JB |
1058 | if (lpfc_cmd == NULL) |
1059 | goto out; | |
1060 | ||
dea3101e JB |
1061 | lpfc_cmd->timeout = 60; |
1062 | lpfc_cmd->scsi_hba = phba; | |
0b18ac42 | 1063 | lpfc_cmd->rdata = rdata; |
dea3101e | 1064 | |
420b630d | 1065 | ret = lpfc_scsi_prep_task_mgmt_cmd(phba, lpfc_cmd, cmnd->device->lun, |
7054a606 | 1066 | FCP_TARGET_RESET); |
dea3101e JB |
1067 | if (!ret) |
1068 | goto out_free_scsi_buf; | |
1069 | ||
1070 | iocbq = &lpfc_cmd->cur_iocbq; | |
1071 | ||
1072 | /* get a buffer for this IOCB command response */ | |
0bd4ca25 | 1073 | iocbqrsp = lpfc_sli_get_iocbq(phba); |
dea3101e JB |
1074 | if (iocbqrsp == NULL) |
1075 | goto out_free_scsi_buf; | |
1076 | ||
0b18ac42 | 1077 | lpfc_printf_log(phba, KERN_INFO, LOG_FCP, |
7054a606 JS |
1078 | "%d:0703 Issue target reset to TGT %d LUN %d rpi x%x " |
1079 | "nlp_flag x%x\n", phba->brd_no, cmnd->device->id, | |
0b18ac42 JS |
1080 | cmnd->device->lun, pnode->nlp_rpi, pnode->nlp_flag); |
1081 | ||
7054a606 | 1082 | iocb_status = lpfc_sli_issue_iocb_wait(phba, |
68876920 JSEC |
1083 | &phba->sli.ring[phba->sli.fcp_ring], |
1084 | iocbq, iocbqrsp, lpfc_cmd->timeout); | |
dea3101e | 1085 | |
7054a606 JS |
1086 | if (iocb_status == IOCB_TIMEDOUT) |
1087 | iocbq->iocb_cmpl = lpfc_tskmgmt_def_cmpl; | |
1088 | ||
1089 | if (iocb_status == IOCB_SUCCESS) | |
1090 | ret = SUCCESS; | |
1091 | else | |
1092 | ret = iocb_status; | |
6175c02a JSEC |
1093 | |
1094 | cmd_result = iocbqrsp->iocb.un.ulpWord[4]; | |
1095 | cmd_status = iocbqrsp->iocb.ulpStatus; | |
1096 | ||
1097 | lpfc_sli_release_iocbq(phba, iocbqrsp); | |
dea3101e JB |
1098 | |
1099 | /* | |
6175c02a | 1100 | * All outstanding txcmplq I/Os should have been aborted by the device. |
dea3101e JB |
1101 | * Unfortunately, some targets do not abide by this forcing the driver |
1102 | * to double check. | |
1103 | */ | |
6175c02a JSEC |
1104 | cnt = lpfc_sli_sum_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring], |
1105 | cmnd->device->id, cmnd->device->lun, | |
1106 | LPFC_CTX_LUN); | |
1107 | if (cnt) | |
1108 | lpfc_sli_abort_iocb(phba, | |
1109 | &phba->sli.ring[phba->sli.fcp_ring], | |
1110 | cmnd->device->id, cmnd->device->lun, | |
1111 | 0, LPFC_CTX_LUN); | |
dea3101e | 1112 | loopcnt = 0; |
6175c02a | 1113 | while(cnt) { |
dea3101e | 1114 | spin_unlock_irq(phba->host->host_lock); |
a9a3047d | 1115 | schedule_timeout_uninterruptible(LPFC_RESET_WAIT*HZ); |
dea3101e JB |
1116 | spin_lock_irq(phba->host->host_lock); |
1117 | ||
1118 | if (++loopcnt | |
c01f3208 | 1119 | > (2 * phba->cfg_devloss_tmo)/LPFC_RESET_WAIT) |
dea3101e | 1120 | break; |
6175c02a JSEC |
1121 | |
1122 | cnt = lpfc_sli_sum_iocb(phba, | |
1123 | &phba->sli.ring[phba->sli.fcp_ring], | |
1124 | cmnd->device->id, cmnd->device->lun, | |
1125 | LPFC_CTX_LUN); | |
dea3101e JB |
1126 | } |
1127 | ||
1128 | if (cnt) { | |
0bd4ca25 | 1129 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, |
7054a606 | 1130 | "%d:0719 device reset I/O flush failure: cnt x%x\n", |
dea3101e | 1131 | phba->brd_no, cnt); |
0bd4ca25 | 1132 | ret = FAILED; |
dea3101e JB |
1133 | } |
1134 | ||
dea3101e | 1135 | out_free_scsi_buf: |
7054a606 JS |
1136 | if (iocb_status != IOCB_TIMEDOUT) { |
1137 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
1138 | } | |
dea3101e | 1139 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, |
7054a606 JS |
1140 | "%d:0713 SCSI layer issued device reset (%d, %d) " |
1141 | "return x%x status x%x result x%x\n", | |
1142 | phba->brd_no, cmnd->device->id, cmnd->device->lun, | |
6175c02a JSEC |
1143 | ret, cmd_status, cmd_result); |
1144 | ||
dea3101e | 1145 | out: |
63c59c3b | 1146 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1147 | return ret; |
1148 | } | |
1149 | ||
94d0e7b8 | 1150 | static int |
7054a606 | 1151 | lpfc_bus_reset_handler(struct scsi_cmnd *cmnd) |
dea3101e JB |
1152 | { |
1153 | struct Scsi_Host *shost = cmnd->device->host; | |
7f0b5b19 | 1154 | struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata; |
dea3101e JB |
1155 | struct lpfc_nodelist *ndlp = NULL; |
1156 | int match; | |
1157 | int ret = FAILED, i, err_count = 0; | |
1158 | int cnt, loopcnt; | |
0bd4ca25 | 1159 | struct lpfc_scsi_buf * lpfc_cmd; |
dea3101e | 1160 | |
a90f5684 | 1161 | lpfc_block_error_handler(cmnd); |
63c59c3b JSEC |
1162 | spin_lock_irq(shost->host_lock); |
1163 | ||
875fbdfe | 1164 | lpfc_cmd = lpfc_get_scsi_buf(phba); |
dea3101e JB |
1165 | if (lpfc_cmd == NULL) |
1166 | goto out; | |
1167 | ||
1168 | /* The lpfc_cmd storage is reused. Set all loop invariants. */ | |
1169 | lpfc_cmd->timeout = 60; | |
dea3101e JB |
1170 | lpfc_cmd->scsi_hba = phba; |
1171 | ||
1172 | /* | |
1173 | * Since the driver manages a single bus device, reset all | |
1174 | * targets known to the driver. Should any target reset | |
1175 | * fail, this routine returns failure to the midlayer. | |
1176 | */ | |
e17da18e | 1177 | for (i = 0; i < LPFC_MAX_TARGET; i++) { |
685f0bf7 | 1178 | /* Search for mapped node by target ID */ |
dea3101e | 1179 | match = 0; |
685f0bf7 JS |
1180 | list_for_each_entry(ndlp, &phba->fc_nodes, nlp_listp) { |
1181 | if (ndlp->nlp_state == NLP_STE_MAPPED_NODE && | |
1182 | i == ndlp->nlp_sid && | |
1183 | ndlp->rport) { | |
dea3101e JB |
1184 | match = 1; |
1185 | break; | |
1186 | } | |
1187 | } | |
1188 | if (!match) | |
1189 | continue; | |
1190 | ||
420b630d JS |
1191 | ret = lpfc_scsi_tgt_reset(lpfc_cmd, phba, i, cmnd->device->lun, |
1192 | ndlp->rport->dd_data); | |
dea3101e | 1193 | if (ret != SUCCESS) { |
6175c02a | 1194 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, |
dca9479b | 1195 | "%d:0700 Bus Reset on target %d failed\n", |
dea3101e JB |
1196 | phba->brd_no, i); |
1197 | err_count++; | |
7054a606 | 1198 | break; |
dea3101e JB |
1199 | } |
1200 | } | |
1201 | ||
7054a606 JS |
1202 | if (ret != IOCB_TIMEDOUT) |
1203 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
1204 | ||
6175c02a JSEC |
1205 | if (err_count == 0) |
1206 | ret = SUCCESS; | |
7054a606 JS |
1207 | else |
1208 | ret = FAILED; | |
6175c02a JSEC |
1209 | |
1210 | /* | |
1211 | * All outstanding txcmplq I/Os should have been aborted by | |
1212 | * the targets. Unfortunately, some targets do not abide by | |
1213 | * this forcing the driver to double check. | |
1214 | */ | |
6175c02a JSEC |
1215 | cnt = lpfc_sli_sum_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring], |
1216 | 0, 0, LPFC_CTX_HOST); | |
1217 | if (cnt) | |
1218 | lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring], | |
1219 | 0, 0, 0, LPFC_CTX_HOST); | |
dea3101e | 1220 | loopcnt = 0; |
6175c02a | 1221 | while(cnt) { |
dea3101e | 1222 | spin_unlock_irq(phba->host->host_lock); |
a9a3047d | 1223 | schedule_timeout_uninterruptible(LPFC_RESET_WAIT*HZ); |
dea3101e JB |
1224 | spin_lock_irq(phba->host->host_lock); |
1225 | ||
1226 | if (++loopcnt | |
c01f3208 | 1227 | > (2 * phba->cfg_devloss_tmo)/LPFC_RESET_WAIT) |
dea3101e | 1228 | break; |
6175c02a JSEC |
1229 | |
1230 | cnt = lpfc_sli_sum_iocb(phba, | |
1231 | &phba->sli.ring[phba->sli.fcp_ring], | |
1232 | 0, 0, LPFC_CTX_HOST); | |
dea3101e JB |
1233 | } |
1234 | ||
1235 | if (cnt) { | |
6175c02a | 1236 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, |
dea3101e JB |
1237 | "%d:0715 Bus Reset I/O flush failure: cnt x%x left x%x\n", |
1238 | phba->brd_no, cnt, i); | |
0bd4ca25 | 1239 | ret = FAILED; |
6175c02a | 1240 | } |
dea3101e | 1241 | |
dea3101e JB |
1242 | lpfc_printf_log(phba, |
1243 | KERN_ERR, | |
1244 | LOG_FCP, | |
1245 | "%d:0714 SCSI layer issued Bus Reset Data: x%x\n", | |
1246 | phba->brd_no, ret); | |
1247 | out: | |
63c59c3b | 1248 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1249 | return ret; |
1250 | } | |
1251 | ||
1252 | static int | |
1253 | lpfc_slave_alloc(struct scsi_device *sdev) | |
1254 | { | |
7f0b5b19 | 1255 | struct lpfc_hba *phba = (struct lpfc_hba *)sdev->host->hostdata; |
dea3101e | 1256 | struct lpfc_scsi_buf *scsi_buf = NULL; |
19a7b4ae | 1257 | struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); |
dea3101e JB |
1258 | uint32_t total = 0, i; |
1259 | uint32_t num_to_alloc = 0; | |
1260 | unsigned long flags; | |
dea3101e | 1261 | |
19a7b4ae | 1262 | if (!rport || fc_remote_port_chkready(rport)) |
dea3101e JB |
1263 | return -ENXIO; |
1264 | ||
19a7b4ae | 1265 | sdev->hostdata = rport->dd_data; |
dea3101e JB |
1266 | |
1267 | /* | |
1268 | * Populate the cmds_per_lun count scsi_bufs into this host's globally | |
1269 | * available list of scsi buffers. Don't allocate more than the | |
a784efbf JSEC |
1270 | * HBA limit conveyed to the midlayer via the host structure. The |
1271 | * formula accounts for the lun_queue_depth + error handlers + 1 | |
1272 | * extra. This list of scsi bufs exists for the lifetime of the driver. | |
dea3101e JB |
1273 | */ |
1274 | total = phba->total_scsi_bufs; | |
a784efbf | 1275 | num_to_alloc = phba->cfg_lun_queue_depth + 2; |
dea3101e | 1276 | if (total >= phba->cfg_hba_queue_depth) { |
a784efbf JSEC |
1277 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP, |
1278 | "%d:0704 At limitation of %d preallocated " | |
1279 | "command buffers\n", phba->brd_no, total); | |
dea3101e JB |
1280 | return 0; |
1281 | } else if (total + num_to_alloc > phba->cfg_hba_queue_depth) { | |
a784efbf JSEC |
1282 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP, |
1283 | "%d:0705 Allocation request of %d command " | |
1284 | "buffers will exceed max of %d. Reducing " | |
1285 | "allocation request to %d.\n", phba->brd_no, | |
1286 | num_to_alloc, phba->cfg_hba_queue_depth, | |
1287 | (phba->cfg_hba_queue_depth - total)); | |
dea3101e JB |
1288 | num_to_alloc = phba->cfg_hba_queue_depth - total; |
1289 | } | |
1290 | ||
1291 | for (i = 0; i < num_to_alloc; i++) { | |
0bd4ca25 | 1292 | scsi_buf = lpfc_new_scsi_buf(phba); |
dea3101e | 1293 | if (!scsi_buf) { |
a784efbf JSEC |
1294 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, |
1295 | "%d:0706 Failed to allocate command " | |
1296 | "buffer\n", phba->brd_no); | |
dea3101e JB |
1297 | break; |
1298 | } | |
1299 | ||
875fbdfe | 1300 | spin_lock_irqsave(&phba->scsi_buf_list_lock, flags); |
dea3101e JB |
1301 | phba->total_scsi_bufs++; |
1302 | list_add_tail(&scsi_buf->list, &phba->lpfc_scsi_buf_list); | |
875fbdfe | 1303 | spin_unlock_irqrestore(&phba->scsi_buf_list_lock, flags); |
dea3101e JB |
1304 | } |
1305 | return 0; | |
1306 | } | |
1307 | ||
1308 | static int | |
1309 | lpfc_slave_configure(struct scsi_device *sdev) | |
1310 | { | |
7f0b5b19 | 1311 | struct lpfc_hba *phba = (struct lpfc_hba *) sdev->host->hostdata; |
dea3101e JB |
1312 | struct fc_rport *rport = starget_to_rport(sdev->sdev_target); |
1313 | ||
1314 | if (sdev->tagged_supported) | |
1315 | scsi_activate_tcq(sdev, phba->cfg_lun_queue_depth); | |
1316 | else | |
1317 | scsi_deactivate_tcq(sdev, phba->cfg_lun_queue_depth); | |
1318 | ||
1319 | /* | |
1320 | * Initialize the fc transport attributes for the target | |
1321 | * containing this scsi device. Also note that the driver's | |
1322 | * target pointer is stored in the starget_data for the | |
1323 | * driver's sysfs entry point functions. | |
1324 | */ | |
c01f3208 | 1325 | rport->dev_loss_tmo = phba->cfg_devloss_tmo; |
dea3101e | 1326 | |
875fbdfe JSEC |
1327 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { |
1328 | lpfc_sli_poll_fcp_ring(phba); | |
1329 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) | |
1330 | lpfc_poll_rearm_timer(phba); | |
1331 | } | |
1332 | ||
dea3101e JB |
1333 | return 0; |
1334 | } | |
1335 | ||
1336 | static void | |
1337 | lpfc_slave_destroy(struct scsi_device *sdev) | |
1338 | { | |
1339 | sdev->hostdata = NULL; | |
1340 | return; | |
1341 | } | |
1342 | ||
1343 | struct scsi_host_template lpfc_template = { | |
1344 | .module = THIS_MODULE, | |
1345 | .name = LPFC_DRIVER_NAME, | |
1346 | .info = lpfc_info, | |
1347 | .queuecommand = lpfc_queuecommand, | |
1348 | .eh_abort_handler = lpfc_abort_handler, | |
7054a606 JS |
1349 | .eh_device_reset_handler= lpfc_device_reset_handler, |
1350 | .eh_bus_reset_handler = lpfc_bus_reset_handler, | |
dea3101e JB |
1351 | .slave_alloc = lpfc_slave_alloc, |
1352 | .slave_configure = lpfc_slave_configure, | |
1353 | .slave_destroy = lpfc_slave_destroy, | |
47a8617c JS |
1354 | .scan_finished = lpfc_scan_finished, |
1355 | .scan_start = lpfc_scan_start, | |
dea3101e JB |
1356 | .this_id = -1, |
1357 | .sg_tablesize = LPFC_SG_SEG_CNT, | |
1358 | .cmd_per_lun = LPFC_CMD_PER_LUN, | |
1359 | .use_clustering = ENABLE_CLUSTERING, | |
1360 | .shost_attrs = lpfc_host_attrs, | |
564b2960 | 1361 | .max_sectors = 0xFFFF, |
dea3101e | 1362 | }; |