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d85296cf | 1 | /******************************************************************* |
dea3101e | 2 | * This file is part of the Emulex Linux Device Driver for * |
c44ce173 | 3 | * Fibre Channel Host Bus Adapters. * |
d080abe0 JS |
4 | * Copyright (C) 2017 Broadcom. All Rights Reserved. The term * |
5 | * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. * | |
51f4ca3c | 6 | * Copyright (C) 2004-2016 Emulex. All rights reserved. * |
c44ce173 | 7 | * EMULEX and SLI are trademarks of Emulex. * |
d080abe0 | 8 | * www.broadcom.com * |
c44ce173 | 9 | * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
dea3101e JB |
10 | * * |
11 | * This program is free software; you can redistribute it and/or * | |
c44ce173 JSEC |
12 | * modify it under the terms of version 2 of the GNU General * |
13 | * Public License as published by the Free Software Foundation. * | |
14 | * This program is distributed in the hope that it will be useful. * | |
15 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * | |
16 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * | |
17 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * | |
18 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * | |
19 | * TO BE LEGALLY INVALID. See the GNU General Public License for * | |
20 | * more details, a copy of which can be found in the file COPYING * | |
21 | * included with this package. * | |
dea3101e | 22 | *******************************************************************/ |
dea3101e | 23 | #include <linux/pci.h> |
5a0e3ad6 | 24 | #include <linux/slab.h> |
dea3101e | 25 | #include <linux/interrupt.h> |
09703660 | 26 | #include <linux/export.h> |
a90f5684 | 27 | #include <linux/delay.h> |
e2a0a9d6 | 28 | #include <asm/unaligned.h> |
737d4248 JS |
29 | #include <linux/crc-t10dif.h> |
30 | #include <net/checksum.h> | |
dea3101e JB |
31 | |
32 | #include <scsi/scsi.h> | |
33 | #include <scsi/scsi_device.h> | |
e2a0a9d6 | 34 | #include <scsi/scsi_eh.h> |
dea3101e JB |
35 | #include <scsi/scsi_host.h> |
36 | #include <scsi/scsi_tcq.h> | |
37 | #include <scsi/scsi_transport_fc.h> | |
38 | ||
39 | #include "lpfc_version.h" | |
da0436e9 | 40 | #include "lpfc_hw4.h" |
dea3101e JB |
41 | #include "lpfc_hw.h" |
42 | #include "lpfc_sli.h" | |
da0436e9 | 43 | #include "lpfc_sli4.h" |
ea2151b4 | 44 | #include "lpfc_nl.h" |
dea3101e | 45 | #include "lpfc_disc.h" |
dea3101e | 46 | #include "lpfc.h" |
9a6b09c0 | 47 | #include "lpfc_scsi.h" |
dea3101e JB |
48 | #include "lpfc_logmsg.h" |
49 | #include "lpfc_crtn.h" | |
92d7f7b0 | 50 | #include "lpfc_vport.h" |
dea3101e JB |
51 | |
52 | #define LPFC_RESET_WAIT 2 | |
53 | #define LPFC_ABORT_WAIT 2 | |
54 | ||
737d4248 | 55 | int _dump_buf_done = 1; |
e2a0a9d6 JS |
56 | |
57 | static char *dif_op_str[] = { | |
9a6b09c0 JS |
58 | "PROT_NORMAL", |
59 | "PROT_READ_INSERT", | |
60 | "PROT_WRITE_STRIP", | |
61 | "PROT_READ_STRIP", | |
62 | "PROT_WRITE_INSERT", | |
63 | "PROT_READ_PASS", | |
64 | "PROT_WRITE_PASS", | |
65 | }; | |
66 | ||
f9bb2da1 JS |
67 | struct scsi_dif_tuple { |
68 | __be16 guard_tag; /* Checksum */ | |
69 | __be16 app_tag; /* Opaque storage */ | |
70 | __be32 ref_tag; /* Target LBA or indirect LBA */ | |
71 | }; | |
72 | ||
1ba981fd JS |
73 | static struct lpfc_rport_data * |
74 | lpfc_rport_data_from_scsi_device(struct scsi_device *sdev) | |
75 | { | |
76 | struct lpfc_vport *vport = (struct lpfc_vport *)sdev->host->hostdata; | |
77 | ||
f38fa0bb | 78 | if (vport->phba->cfg_fof) |
1ba981fd JS |
79 | return ((struct lpfc_device_data *)sdev->hostdata)->rport_data; |
80 | else | |
81 | return (struct lpfc_rport_data *)sdev->hostdata; | |
82 | } | |
83 | ||
da0436e9 JS |
84 | static void |
85 | lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb); | |
1c6f4ef5 JS |
86 | static void |
87 | lpfc_release_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb); | |
9c6aa9d7 JS |
88 | static int |
89 | lpfc_prot_group_type(struct lpfc_hba *phba, struct scsi_cmnd *sc); | |
e2a0a9d6 JS |
90 | |
91 | static void | |
6a9c52cf | 92 | lpfc_debug_save_data(struct lpfc_hba *phba, struct scsi_cmnd *cmnd) |
e2a0a9d6 JS |
93 | { |
94 | void *src, *dst; | |
95 | struct scatterlist *sgde = scsi_sglist(cmnd); | |
96 | ||
97 | if (!_dump_buf_data) { | |
6a9c52cf JS |
98 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
99 | "9050 BLKGRD: ERROR %s _dump_buf_data is NULL\n", | |
e2a0a9d6 JS |
100 | __func__); |
101 | return; | |
102 | } | |
103 | ||
104 | ||
105 | if (!sgde) { | |
6a9c52cf JS |
106 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
107 | "9051 BLKGRD: ERROR: data scatterlist is null\n"); | |
e2a0a9d6 JS |
108 | return; |
109 | } | |
110 | ||
111 | dst = (void *) _dump_buf_data; | |
112 | while (sgde) { | |
113 | src = sg_virt(sgde); | |
114 | memcpy(dst, src, sgde->length); | |
115 | dst += sgde->length; | |
116 | sgde = sg_next(sgde); | |
117 | } | |
118 | } | |
119 | ||
120 | static void | |
6a9c52cf | 121 | lpfc_debug_save_dif(struct lpfc_hba *phba, struct scsi_cmnd *cmnd) |
e2a0a9d6 JS |
122 | { |
123 | void *src, *dst; | |
124 | struct scatterlist *sgde = scsi_prot_sglist(cmnd); | |
125 | ||
126 | if (!_dump_buf_dif) { | |
6a9c52cf JS |
127 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
128 | "9052 BLKGRD: ERROR %s _dump_buf_data is NULL\n", | |
e2a0a9d6 JS |
129 | __func__); |
130 | return; | |
131 | } | |
132 | ||
133 | if (!sgde) { | |
6a9c52cf JS |
134 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
135 | "9053 BLKGRD: ERROR: prot scatterlist is null\n"); | |
e2a0a9d6 JS |
136 | return; |
137 | } | |
138 | ||
139 | dst = _dump_buf_dif; | |
140 | while (sgde) { | |
141 | src = sg_virt(sgde); | |
142 | memcpy(dst, src, sgde->length); | |
143 | dst += sgde->length; | |
144 | sgde = sg_next(sgde); | |
145 | } | |
146 | } | |
147 | ||
9c6aa9d7 JS |
148 | static inline unsigned |
149 | lpfc_cmd_blksize(struct scsi_cmnd *sc) | |
150 | { | |
151 | return sc->device->sector_size; | |
152 | } | |
153 | ||
154 | #define LPFC_CHECK_PROTECT_GUARD 1 | |
155 | #define LPFC_CHECK_PROTECT_REF 2 | |
156 | static inline unsigned | |
157 | lpfc_cmd_protect(struct scsi_cmnd *sc, int flag) | |
158 | { | |
159 | return 1; | |
160 | } | |
161 | ||
162 | static inline unsigned | |
163 | lpfc_cmd_guard_csum(struct scsi_cmnd *sc) | |
164 | { | |
165 | if (lpfc_prot_group_type(NULL, sc) == LPFC_PG_TYPE_NO_DIF) | |
166 | return 0; | |
167 | if (scsi_host_get_guard(sc->device->host) == SHOST_DIX_GUARD_IP) | |
168 | return 1; | |
169 | return 0; | |
170 | } | |
171 | ||
f1126688 JS |
172 | /** |
173 | * lpfc_sli4_set_rsp_sgl_last - Set the last bit in the response sge. | |
174 | * @phba: Pointer to HBA object. | |
175 | * @lpfc_cmd: lpfc scsi command object pointer. | |
176 | * | |
177 | * This function is called from the lpfc_prep_task_mgmt_cmd function to | |
178 | * set the last bit in the response sge entry. | |
179 | **/ | |
180 | static void | |
181 | lpfc_sli4_set_rsp_sgl_last(struct lpfc_hba *phba, | |
182 | struct lpfc_scsi_buf *lpfc_cmd) | |
183 | { | |
184 | struct sli4_sge *sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl; | |
185 | if (sgl) { | |
186 | sgl += 1; | |
187 | sgl->word2 = le32_to_cpu(sgl->word2); | |
188 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
189 | sgl->word2 = cpu_to_le32(sgl->word2); | |
190 | } | |
191 | } | |
192 | ||
ea2151b4 | 193 | /** |
3621a710 | 194 | * lpfc_update_stats - Update statistical data for the command completion |
ea2151b4 JS |
195 | * @phba: Pointer to HBA object. |
196 | * @lpfc_cmd: lpfc scsi command object pointer. | |
197 | * | |
198 | * This function is called when there is a command completion and this | |
199 | * function updates the statistical data for the command completion. | |
200 | **/ | |
201 | static void | |
202 | lpfc_update_stats(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) | |
203 | { | |
204 | struct lpfc_rport_data *rdata = lpfc_cmd->rdata; | |
205 | struct lpfc_nodelist *pnode = rdata->pnode; | |
206 | struct scsi_cmnd *cmd = lpfc_cmd->pCmd; | |
207 | unsigned long flags; | |
208 | struct Scsi_Host *shost = cmd->device->host; | |
209 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
210 | unsigned long latency; | |
211 | int i; | |
212 | ||
213 | if (cmd->result) | |
214 | return; | |
215 | ||
9f1e1b50 JS |
216 | latency = jiffies_to_msecs((long)jiffies - (long)lpfc_cmd->start_time); |
217 | ||
ea2151b4 JS |
218 | spin_lock_irqsave(shost->host_lock, flags); |
219 | if (!vport->stat_data_enabled || | |
220 | vport->stat_data_blocked || | |
5989b8d4 | 221 | !pnode || |
ea2151b4 JS |
222 | !pnode->lat_data || |
223 | (phba->bucket_type == LPFC_NO_BUCKET)) { | |
224 | spin_unlock_irqrestore(shost->host_lock, flags); | |
225 | return; | |
226 | } | |
ea2151b4 JS |
227 | |
228 | if (phba->bucket_type == LPFC_LINEAR_BUCKET) { | |
229 | i = (latency + phba->bucket_step - 1 - phba->bucket_base)/ | |
230 | phba->bucket_step; | |
9f1e1b50 JS |
231 | /* check array subscript bounds */ |
232 | if (i < 0) | |
233 | i = 0; | |
234 | else if (i >= LPFC_MAX_BUCKET_COUNT) | |
235 | i = LPFC_MAX_BUCKET_COUNT - 1; | |
ea2151b4 JS |
236 | } else { |
237 | for (i = 0; i < LPFC_MAX_BUCKET_COUNT-1; i++) | |
238 | if (latency <= (phba->bucket_base + | |
239 | ((1<<i)*phba->bucket_step))) | |
240 | break; | |
241 | } | |
242 | ||
243 | pnode->lat_data[i].cmd_count++; | |
244 | spin_unlock_irqrestore(shost->host_lock, flags); | |
245 | } | |
246 | ||
9bad7671 | 247 | /** |
3621a710 | 248 | * lpfc_rampdown_queue_depth - Post RAMP_DOWN_QUEUE event to worker thread |
9bad7671 JS |
249 | * @phba: The Hba for which this call is being executed. |
250 | * | |
251 | * This routine is called when there is resource error in driver or firmware. | |
252 | * This routine posts WORKER_RAMP_DOWN_QUEUE event for @phba. This routine | |
253 | * posts at most 1 event each second. This routine wakes up worker thread of | |
254 | * @phba to process WORKER_RAM_DOWN_EVENT event. | |
255 | * | |
256 | * This routine should be called with no lock held. | |
257 | **/ | |
92d7f7b0 | 258 | void |
eaf15d5b | 259 | lpfc_rampdown_queue_depth(struct lpfc_hba *phba) |
92d7f7b0 JS |
260 | { |
261 | unsigned long flags; | |
5e9d9b82 | 262 | uint32_t evt_posted; |
0d4aec13 | 263 | unsigned long expires; |
92d7f7b0 JS |
264 | |
265 | spin_lock_irqsave(&phba->hbalock, flags); | |
266 | atomic_inc(&phba->num_rsrc_err); | |
267 | phba->last_rsrc_error_time = jiffies; | |
268 | ||
0d4aec13 MS |
269 | expires = phba->last_ramp_down_time + QUEUE_RAMP_DOWN_INTERVAL; |
270 | if (time_after(expires, jiffies)) { | |
92d7f7b0 JS |
271 | spin_unlock_irqrestore(&phba->hbalock, flags); |
272 | return; | |
273 | } | |
274 | ||
275 | phba->last_ramp_down_time = jiffies; | |
276 | ||
277 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
278 | ||
279 | spin_lock_irqsave(&phba->pport->work_port_lock, flags); | |
5e9d9b82 JS |
280 | evt_posted = phba->pport->work_port_events & WORKER_RAMP_DOWN_QUEUE; |
281 | if (!evt_posted) | |
92d7f7b0 | 282 | phba->pport->work_port_events |= WORKER_RAMP_DOWN_QUEUE; |
92d7f7b0 JS |
283 | spin_unlock_irqrestore(&phba->pport->work_port_lock, flags); |
284 | ||
5e9d9b82 JS |
285 | if (!evt_posted) |
286 | lpfc_worker_wake_up(phba); | |
92d7f7b0 JS |
287 | return; |
288 | } | |
289 | ||
9bad7671 | 290 | /** |
3621a710 | 291 | * lpfc_ramp_down_queue_handler - WORKER_RAMP_DOWN_QUEUE event handler |
9bad7671 JS |
292 | * @phba: The Hba for which this call is being executed. |
293 | * | |
294 | * This routine is called to process WORKER_RAMP_DOWN_QUEUE event for worker | |
295 | * thread.This routine reduces queue depth for all scsi device on each vport | |
296 | * associated with @phba. | |
297 | **/ | |
92d7f7b0 JS |
298 | void |
299 | lpfc_ramp_down_queue_handler(struct lpfc_hba *phba) | |
300 | { | |
549e55cd JS |
301 | struct lpfc_vport **vports; |
302 | struct Scsi_Host *shost; | |
92d7f7b0 | 303 | struct scsi_device *sdev; |
5ffc266e | 304 | unsigned long new_queue_depth; |
92d7f7b0 | 305 | unsigned long num_rsrc_err, num_cmd_success; |
549e55cd | 306 | int i; |
92d7f7b0 JS |
307 | |
308 | num_rsrc_err = atomic_read(&phba->num_rsrc_err); | |
309 | num_cmd_success = atomic_read(&phba->num_cmd_success); | |
310 | ||
75ad83a4 JS |
311 | /* |
312 | * The error and success command counters are global per | |
313 | * driver instance. If another handler has already | |
314 | * operated on this error event, just exit. | |
315 | */ | |
316 | if (num_rsrc_err == 0) | |
317 | return; | |
318 | ||
549e55cd JS |
319 | vports = lpfc_create_vport_work_array(phba); |
320 | if (vports != NULL) | |
21e9a0a5 | 321 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
549e55cd JS |
322 | shost = lpfc_shost_from_vport(vports[i]); |
323 | shost_for_each_device(sdev, shost) { | |
92d7f7b0 | 324 | new_queue_depth = |
549e55cd JS |
325 | sdev->queue_depth * num_rsrc_err / |
326 | (num_rsrc_err + num_cmd_success); | |
327 | if (!new_queue_depth) | |
328 | new_queue_depth = sdev->queue_depth - 1; | |
329 | else | |
330 | new_queue_depth = sdev->queue_depth - | |
331 | new_queue_depth; | |
db5ed4df | 332 | scsi_change_queue_depth(sdev, new_queue_depth); |
549e55cd | 333 | } |
92d7f7b0 | 334 | } |
09372820 | 335 | lpfc_destroy_vport_work_array(phba, vports); |
92d7f7b0 JS |
336 | atomic_set(&phba->num_rsrc_err, 0); |
337 | atomic_set(&phba->num_cmd_success, 0); | |
338 | } | |
339 | ||
a8e497d5 | 340 | /** |
3621a710 | 341 | * lpfc_scsi_dev_block - set all scsi hosts to block state |
a8e497d5 JS |
342 | * @phba: Pointer to HBA context object. |
343 | * | |
344 | * This function walks vport list and set each SCSI host to block state | |
345 | * by invoking fc_remote_port_delete() routine. This function is invoked | |
346 | * with EEH when device's PCI slot has been permanently disabled. | |
347 | **/ | |
348 | void | |
349 | lpfc_scsi_dev_block(struct lpfc_hba *phba) | |
350 | { | |
351 | struct lpfc_vport **vports; | |
352 | struct Scsi_Host *shost; | |
353 | struct scsi_device *sdev; | |
354 | struct fc_rport *rport; | |
355 | int i; | |
356 | ||
357 | vports = lpfc_create_vport_work_array(phba); | |
358 | if (vports != NULL) | |
21e9a0a5 | 359 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
a8e497d5 JS |
360 | shost = lpfc_shost_from_vport(vports[i]); |
361 | shost_for_each_device(sdev, shost) { | |
362 | rport = starget_to_rport(scsi_target(sdev)); | |
363 | fc_remote_port_delete(rport); | |
364 | } | |
365 | } | |
366 | lpfc_destroy_vport_work_array(phba, vports); | |
367 | } | |
368 | ||
9bad7671 | 369 | /** |
3772a991 | 370 | * lpfc_new_scsi_buf_s3 - Scsi buffer allocator for HBA with SLI3 IF spec |
9bad7671 | 371 | * @vport: The virtual port for which this call being executed. |
3772a991 | 372 | * @num_to_allocate: The requested number of buffers to allocate. |
9bad7671 | 373 | * |
3772a991 JS |
374 | * This routine allocates a scsi buffer for device with SLI-3 interface spec, |
375 | * the scsi buffer contains all the necessary information needed to initiate | |
376 | * a SCSI I/O. The non-DMAable buffer region contains information to build | |
377 | * the IOCB. The DMAable region contains memory for the FCP CMND, FCP RSP, | |
378 | * and the initial BPL. In addition to allocating memory, the FCP CMND and | |
379 | * FCP RSP BDEs are setup in the BPL and the BPL BDE is setup in the IOCB. | |
9bad7671 JS |
380 | * |
381 | * Return codes: | |
3772a991 JS |
382 | * int - number of scsi buffers that were allocated. |
383 | * 0 = failure, less than num_to_alloc is a partial failure. | |
9bad7671 | 384 | **/ |
3772a991 JS |
385 | static int |
386 | lpfc_new_scsi_buf_s3(struct lpfc_vport *vport, int num_to_alloc) | |
dea3101e | 387 | { |
2e0fef85 | 388 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
389 | struct lpfc_scsi_buf *psb; |
390 | struct ulp_bde64 *bpl; | |
391 | IOCB_t *iocb; | |
34b02dcd JS |
392 | dma_addr_t pdma_phys_fcp_cmd; |
393 | dma_addr_t pdma_phys_fcp_rsp; | |
394 | dma_addr_t pdma_phys_bpl; | |
604a3e30 | 395 | uint16_t iotag; |
96f7077f JS |
396 | int bcnt, bpl_size; |
397 | ||
398 | bpl_size = phba->cfg_sg_dma_buf_size - | |
399 | (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp)); | |
400 | ||
401 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
402 | "9067 ALLOC %d scsi_bufs: %d (%d + %d + %d)\n", | |
403 | num_to_alloc, phba->cfg_sg_dma_buf_size, | |
404 | (int)sizeof(struct fcp_cmnd), | |
405 | (int)sizeof(struct fcp_rsp), bpl_size); | |
dea3101e | 406 | |
3772a991 JS |
407 | for (bcnt = 0; bcnt < num_to_alloc; bcnt++) { |
408 | psb = kzalloc(sizeof(struct lpfc_scsi_buf), GFP_KERNEL); | |
409 | if (!psb) | |
410 | break; | |
dea3101e | 411 | |
3772a991 JS |
412 | /* |
413 | * Get memory from the pci pool to map the virt space to pci | |
414 | * bus space for an I/O. The DMA buffer includes space for the | |
415 | * struct fcp_cmnd, struct fcp_rsp and the number of bde's | |
416 | * necessary to support the sg_tablesize. | |
417 | */ | |
895427bd | 418 | psb->data = pci_pool_zalloc(phba->lpfc_sg_dma_buf_pool, |
3772a991 JS |
419 | GFP_KERNEL, &psb->dma_handle); |
420 | if (!psb->data) { | |
421 | kfree(psb); | |
422 | break; | |
423 | } | |
424 | ||
3772a991 JS |
425 | |
426 | /* Allocate iotag for psb->cur_iocbq. */ | |
427 | iotag = lpfc_sli_next_iotag(phba, &psb->cur_iocbq); | |
428 | if (iotag == 0) { | |
895427bd JS |
429 | pci_pool_free(phba->lpfc_sg_dma_buf_pool, |
430 | psb->data, psb->dma_handle); | |
3772a991 JS |
431 | kfree(psb); |
432 | break; | |
433 | } | |
434 | psb->cur_iocbq.iocb_flag |= LPFC_IO_FCP; | |
435 | ||
436 | psb->fcp_cmnd = psb->data; | |
437 | psb->fcp_rsp = psb->data + sizeof(struct fcp_cmnd); | |
438 | psb->fcp_bpl = psb->data + sizeof(struct fcp_cmnd) + | |
34b02dcd | 439 | sizeof(struct fcp_rsp); |
dea3101e | 440 | |
3772a991 JS |
441 | /* Initialize local short-hand pointers. */ |
442 | bpl = psb->fcp_bpl; | |
443 | pdma_phys_fcp_cmd = psb->dma_handle; | |
444 | pdma_phys_fcp_rsp = psb->dma_handle + sizeof(struct fcp_cmnd); | |
445 | pdma_phys_bpl = psb->dma_handle + sizeof(struct fcp_cmnd) + | |
446 | sizeof(struct fcp_rsp); | |
447 | ||
448 | /* | |
449 | * The first two bdes are the FCP_CMD and FCP_RSP. The balance | |
450 | * are sg list bdes. Initialize the first two and leave the | |
451 | * rest for queuecommand. | |
452 | */ | |
453 | bpl[0].addrHigh = le32_to_cpu(putPaddrHigh(pdma_phys_fcp_cmd)); | |
454 | bpl[0].addrLow = le32_to_cpu(putPaddrLow(pdma_phys_fcp_cmd)); | |
455 | bpl[0].tus.f.bdeSize = sizeof(struct fcp_cmnd); | |
456 | bpl[0].tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
457 | bpl[0].tus.w = le32_to_cpu(bpl[0].tus.w); | |
458 | ||
459 | /* Setup the physical region for the FCP RSP */ | |
460 | bpl[1].addrHigh = le32_to_cpu(putPaddrHigh(pdma_phys_fcp_rsp)); | |
461 | bpl[1].addrLow = le32_to_cpu(putPaddrLow(pdma_phys_fcp_rsp)); | |
462 | bpl[1].tus.f.bdeSize = sizeof(struct fcp_rsp); | |
463 | bpl[1].tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
464 | bpl[1].tus.w = le32_to_cpu(bpl[1].tus.w); | |
465 | ||
466 | /* | |
467 | * Since the IOCB for the FCP I/O is built into this | |
468 | * lpfc_scsi_buf, initialize it with all known data now. | |
469 | */ | |
470 | iocb = &psb->cur_iocbq.iocb; | |
471 | iocb->un.fcpi64.bdl.ulpIoTag32 = 0; | |
472 | if ((phba->sli_rev == 3) && | |
473 | !(phba->sli3_options & LPFC_SLI3_BG_ENABLED)) { | |
474 | /* fill in immediate fcp command BDE */ | |
475 | iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BDE_IMMED; | |
476 | iocb->un.fcpi64.bdl.bdeSize = sizeof(struct fcp_cmnd); | |
477 | iocb->un.fcpi64.bdl.addrLow = offsetof(IOCB_t, | |
478 | unsli3.fcp_ext.icd); | |
479 | iocb->un.fcpi64.bdl.addrHigh = 0; | |
480 | iocb->ulpBdeCount = 0; | |
481 | iocb->ulpLe = 0; | |
25985edc | 482 | /* fill in response BDE */ |
3772a991 JS |
483 | iocb->unsli3.fcp_ext.rbde.tus.f.bdeFlags = |
484 | BUFF_TYPE_BDE_64; | |
485 | iocb->unsli3.fcp_ext.rbde.tus.f.bdeSize = | |
486 | sizeof(struct fcp_rsp); | |
487 | iocb->unsli3.fcp_ext.rbde.addrLow = | |
488 | putPaddrLow(pdma_phys_fcp_rsp); | |
489 | iocb->unsli3.fcp_ext.rbde.addrHigh = | |
490 | putPaddrHigh(pdma_phys_fcp_rsp); | |
491 | } else { | |
492 | iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
493 | iocb->un.fcpi64.bdl.bdeSize = | |
494 | (2 * sizeof(struct ulp_bde64)); | |
495 | iocb->un.fcpi64.bdl.addrLow = | |
496 | putPaddrLow(pdma_phys_bpl); | |
497 | iocb->un.fcpi64.bdl.addrHigh = | |
498 | putPaddrHigh(pdma_phys_bpl); | |
499 | iocb->ulpBdeCount = 1; | |
500 | iocb->ulpLe = 1; | |
501 | } | |
502 | iocb->ulpClass = CLASS3; | |
503 | psb->status = IOSTAT_SUCCESS; | |
da0436e9 | 504 | /* Put it back into the SCSI buffer list */ |
eee8877e | 505 | psb->cur_iocbq.context1 = psb; |
1c6f4ef5 | 506 | lpfc_release_scsi_buf_s3(phba, psb); |
dea3101e | 507 | |
34b02dcd | 508 | } |
dea3101e | 509 | |
3772a991 | 510 | return bcnt; |
dea3101e JB |
511 | } |
512 | ||
1151e3ec JS |
513 | /** |
514 | * lpfc_sli4_vport_delete_fcp_xri_aborted -Remove all ndlp references for vport | |
515 | * @vport: pointer to lpfc vport data structure. | |
516 | * | |
517 | * This routine is invoked by the vport cleanup for deletions and the cleanup | |
518 | * for an ndlp on removal. | |
519 | **/ | |
520 | void | |
521 | lpfc_sli4_vport_delete_fcp_xri_aborted(struct lpfc_vport *vport) | |
522 | { | |
523 | struct lpfc_hba *phba = vport->phba; | |
524 | struct lpfc_scsi_buf *psb, *next_psb; | |
525 | unsigned long iflag = 0; | |
526 | ||
895427bd JS |
527 | if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) |
528 | return; | |
1151e3ec JS |
529 | spin_lock_irqsave(&phba->hbalock, iflag); |
530 | spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); | |
531 | list_for_each_entry_safe(psb, next_psb, | |
532 | &phba->sli4_hba.lpfc_abts_scsi_buf_list, list) { | |
533 | if (psb->rdata && psb->rdata->pnode | |
534 | && psb->rdata->pnode->vport == vport) | |
535 | psb->rdata = NULL; | |
536 | } | |
537 | spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); | |
538 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
539 | } | |
540 | ||
da0436e9 JS |
541 | /** |
542 | * lpfc_sli4_fcp_xri_aborted - Fast-path process of fcp xri abort | |
543 | * @phba: pointer to lpfc hba data structure. | |
544 | * @axri: pointer to the fcp xri abort wcqe structure. | |
545 | * | |
546 | * This routine is invoked by the worker thread to process a SLI4 fast-path | |
547 | * FCP aborted xri. | |
548 | **/ | |
549 | void | |
550 | lpfc_sli4_fcp_xri_aborted(struct lpfc_hba *phba, | |
551 | struct sli4_wcqe_xri_aborted *axri) | |
552 | { | |
553 | uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri); | |
19ca7609 | 554 | uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri); |
da0436e9 JS |
555 | struct lpfc_scsi_buf *psb, *next_psb; |
556 | unsigned long iflag = 0; | |
0f65ff68 JS |
557 | struct lpfc_iocbq *iocbq; |
558 | int i; | |
19ca7609 JS |
559 | struct lpfc_nodelist *ndlp; |
560 | int rrq_empty = 0; | |
895427bd | 561 | struct lpfc_sli_ring *pring = phba->sli4_hba.els_wq->pring; |
da0436e9 | 562 | |
895427bd JS |
563 | if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) |
564 | return; | |
0f65ff68 JS |
565 | spin_lock_irqsave(&phba->hbalock, iflag); |
566 | spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); | |
da0436e9 JS |
567 | list_for_each_entry_safe(psb, next_psb, |
568 | &phba->sli4_hba.lpfc_abts_scsi_buf_list, list) { | |
569 | if (psb->cur_iocbq.sli4_xritag == xri) { | |
570 | list_del(&psb->list); | |
341af102 | 571 | psb->exch_busy = 0; |
da0436e9 | 572 | psb->status = IOSTAT_SUCCESS; |
0f65ff68 JS |
573 | spin_unlock( |
574 | &phba->sli4_hba.abts_scsi_buf_list_lock); | |
1151e3ec JS |
575 | if (psb->rdata && psb->rdata->pnode) |
576 | ndlp = psb->rdata->pnode; | |
577 | else | |
578 | ndlp = NULL; | |
579 | ||
19ca7609 | 580 | rrq_empty = list_empty(&phba->active_rrq_list); |
0f65ff68 | 581 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
cb69f7de | 582 | if (ndlp) { |
ee0f4fe1 JS |
583 | lpfc_set_rrq_active(phba, ndlp, |
584 | psb->cur_iocbq.sli4_lxritag, rxid, 1); | |
cb69f7de JS |
585 | lpfc_sli4_abts_err_handler(phba, ndlp, axri); |
586 | } | |
da0436e9 | 587 | lpfc_release_scsi_buf_s4(phba, psb); |
19ca7609 JS |
588 | if (rrq_empty) |
589 | lpfc_worker_wake_up(phba); | |
da0436e9 JS |
590 | return; |
591 | } | |
592 | } | |
0f65ff68 JS |
593 | spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); |
594 | for (i = 1; i <= phba->sli.last_iotag; i++) { | |
595 | iocbq = phba->sli.iocbq_lookup[i]; | |
596 | ||
597 | if (!(iocbq->iocb_flag & LPFC_IO_FCP) || | |
598 | (iocbq->iocb_flag & LPFC_IO_LIBDFC)) | |
599 | continue; | |
600 | if (iocbq->sli4_xritag != xri) | |
601 | continue; | |
602 | psb = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq); | |
603 | psb->exch_busy = 0; | |
604 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
0e9bb8d7 | 605 | if (!list_empty(&pring->txq)) |
589a52d6 | 606 | lpfc_worker_wake_up(phba); |
0f65ff68 JS |
607 | return; |
608 | ||
609 | } | |
610 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
da0436e9 JS |
611 | } |
612 | ||
613 | /** | |
4b160ae8 | 614 | * lpfc_sli4_post_scsi_sgl_list - Post blocks of scsi buffer sgls from a list |
da0436e9 | 615 | * @phba: pointer to lpfc hba data structure. |
8a9d2e80 | 616 | * @post_sblist: pointer to the scsi buffer list. |
da0436e9 | 617 | * |
8a9d2e80 JS |
618 | * This routine walks a list of scsi buffers that was passed in. It attempts |
619 | * to construct blocks of scsi buffer sgls which contains contiguous xris and | |
620 | * uses the non-embedded SGL block post mailbox commands to post to the port. | |
621 | * For single SCSI buffer sgl with non-contiguous xri, if any, it shall use | |
622 | * embedded SGL post mailbox command for posting. The @post_sblist passed in | |
623 | * must be local list, thus no lock is needed when manipulate the list. | |
da0436e9 | 624 | * |
8a9d2e80 | 625 | * Returns: 0 = failure, non-zero number of successfully posted buffers. |
da0436e9 | 626 | **/ |
7bfe781e | 627 | static int |
8a9d2e80 JS |
628 | lpfc_sli4_post_scsi_sgl_list(struct lpfc_hba *phba, |
629 | struct list_head *post_sblist, int sb_count) | |
da0436e9 | 630 | { |
8a9d2e80 | 631 | struct lpfc_scsi_buf *psb, *psb_next; |
96f7077f | 632 | int status, sgl_size; |
8a9d2e80 JS |
633 | int post_cnt = 0, block_cnt = 0, num_posting = 0, num_posted = 0; |
634 | dma_addr_t pdma_phys_bpl1; | |
635 | int last_xritag = NO_XRI; | |
636 | LIST_HEAD(prep_sblist); | |
637 | LIST_HEAD(blck_sblist); | |
638 | LIST_HEAD(scsi_sblist); | |
639 | ||
640 | /* sanity check */ | |
641 | if (sb_count <= 0) | |
642 | return -EINVAL; | |
643 | ||
96f7077f JS |
644 | sgl_size = phba->cfg_sg_dma_buf_size - |
645 | (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp)); | |
646 | ||
8a9d2e80 JS |
647 | list_for_each_entry_safe(psb, psb_next, post_sblist, list) { |
648 | list_del_init(&psb->list); | |
649 | block_cnt++; | |
650 | if ((last_xritag != NO_XRI) && | |
651 | (psb->cur_iocbq.sli4_xritag != last_xritag + 1)) { | |
652 | /* a hole in xri block, form a sgl posting block */ | |
653 | list_splice_init(&prep_sblist, &blck_sblist); | |
654 | post_cnt = block_cnt - 1; | |
655 | /* prepare list for next posting block */ | |
656 | list_add_tail(&psb->list, &prep_sblist); | |
657 | block_cnt = 1; | |
658 | } else { | |
659 | /* prepare list for next posting block */ | |
660 | list_add_tail(&psb->list, &prep_sblist); | |
661 | /* enough sgls for non-embed sgl mbox command */ | |
662 | if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) { | |
663 | list_splice_init(&prep_sblist, &blck_sblist); | |
664 | post_cnt = block_cnt; | |
665 | block_cnt = 0; | |
da0436e9 | 666 | } |
8a9d2e80 JS |
667 | } |
668 | num_posting++; | |
669 | last_xritag = psb->cur_iocbq.sli4_xritag; | |
da0436e9 | 670 | |
8a9d2e80 JS |
671 | /* end of repost sgl list condition for SCSI buffers */ |
672 | if (num_posting == sb_count) { | |
673 | if (post_cnt == 0) { | |
674 | /* last sgl posting block */ | |
675 | list_splice_init(&prep_sblist, &blck_sblist); | |
676 | post_cnt = block_cnt; | |
677 | } else if (block_cnt == 1) { | |
678 | /* last single sgl with non-contiguous xri */ | |
96f7077f | 679 | if (sgl_size > SGL_PAGE_SIZE) |
8a9d2e80 JS |
680 | pdma_phys_bpl1 = psb->dma_phys_bpl + |
681 | SGL_PAGE_SIZE; | |
682 | else | |
683 | pdma_phys_bpl1 = 0; | |
684 | status = lpfc_sli4_post_sgl(phba, | |
685 | psb->dma_phys_bpl, | |
686 | pdma_phys_bpl1, | |
687 | psb->cur_iocbq.sli4_xritag); | |
688 | if (status) { | |
689 | /* failure, put on abort scsi list */ | |
690 | psb->exch_busy = 1; | |
691 | } else { | |
692 | /* success, put on SCSI buffer list */ | |
693 | psb->exch_busy = 0; | |
694 | psb->status = IOSTAT_SUCCESS; | |
695 | num_posted++; | |
696 | } | |
697 | /* success, put on SCSI buffer sgl list */ | |
698 | list_add_tail(&psb->list, &scsi_sblist); | |
699 | } | |
700 | } | |
da0436e9 | 701 | |
8a9d2e80 JS |
702 | /* continue until a nembed page worth of sgls */ |
703 | if (post_cnt == 0) | |
da0436e9 | 704 | continue; |
8a9d2e80 JS |
705 | |
706 | /* post block of SCSI buffer list sgls */ | |
707 | status = lpfc_sli4_post_scsi_sgl_block(phba, &blck_sblist, | |
708 | post_cnt); | |
709 | ||
710 | /* don't reset xirtag due to hole in xri block */ | |
711 | if (block_cnt == 0) | |
712 | last_xritag = NO_XRI; | |
713 | ||
714 | /* reset SCSI buffer post count for next round of posting */ | |
715 | post_cnt = 0; | |
716 | ||
717 | /* put posted SCSI buffer-sgl posted on SCSI buffer sgl list */ | |
718 | while (!list_empty(&blck_sblist)) { | |
719 | list_remove_head(&blck_sblist, psb, | |
720 | struct lpfc_scsi_buf, list); | |
da0436e9 | 721 | if (status) { |
8a9d2e80 | 722 | /* failure, put on abort scsi list */ |
341af102 | 723 | psb->exch_busy = 1; |
341af102 | 724 | } else { |
8a9d2e80 | 725 | /* success, put on SCSI buffer list */ |
341af102 | 726 | psb->exch_busy = 0; |
da0436e9 | 727 | psb->status = IOSTAT_SUCCESS; |
8a9d2e80 | 728 | num_posted++; |
341af102 | 729 | } |
8a9d2e80 | 730 | list_add_tail(&psb->list, &scsi_sblist); |
da0436e9 JS |
731 | } |
732 | } | |
8a9d2e80 JS |
733 | /* Push SCSI buffers with sgl posted to the availble list */ |
734 | while (!list_empty(&scsi_sblist)) { | |
735 | list_remove_head(&scsi_sblist, psb, | |
736 | struct lpfc_scsi_buf, list); | |
737 | lpfc_release_scsi_buf_s4(phba, psb); | |
738 | } | |
739 | return num_posted; | |
740 | } | |
741 | ||
742 | /** | |
4b160ae8 | 743 | * lpfc_sli4_repost_scsi_sgl_list - Repost all the allocated scsi buffer sgls |
8a9d2e80 JS |
744 | * @phba: pointer to lpfc hba data structure. |
745 | * | |
746 | * This routine walks the list of scsi buffers that have been allocated and | |
747 | * repost them to the port by using SGL block post. This is needed after a | |
748 | * pci_function_reset/warm_start or start. The lpfc_hba_down_post_s4 routine | |
749 | * is responsible for moving all scsi buffers on the lpfc_abts_scsi_sgl_list | |
750 | * to the lpfc_scsi_buf_list. If the repost fails, reject all scsi buffers. | |
751 | * | |
752 | * Returns: 0 = success, non-zero failure. | |
753 | **/ | |
754 | int | |
755 | lpfc_sli4_repost_scsi_sgl_list(struct lpfc_hba *phba) | |
756 | { | |
757 | LIST_HEAD(post_sblist); | |
758 | int num_posted, rc = 0; | |
759 | ||
760 | /* get all SCSI buffers need to repost to a local list */ | |
a40fc5f0 | 761 | spin_lock_irq(&phba->scsi_buf_list_get_lock); |
164cecd1 | 762 | spin_lock(&phba->scsi_buf_list_put_lock); |
a40fc5f0 JS |
763 | list_splice_init(&phba->lpfc_scsi_buf_list_get, &post_sblist); |
764 | list_splice(&phba->lpfc_scsi_buf_list_put, &post_sblist); | |
164cecd1 | 765 | spin_unlock(&phba->scsi_buf_list_put_lock); |
a40fc5f0 | 766 | spin_unlock_irq(&phba->scsi_buf_list_get_lock); |
8a9d2e80 JS |
767 | |
768 | /* post the list of scsi buffer sgls to port if available */ | |
769 | if (!list_empty(&post_sblist)) { | |
770 | num_posted = lpfc_sli4_post_scsi_sgl_list(phba, &post_sblist, | |
771 | phba->sli4_hba.scsi_xri_cnt); | |
772 | /* failed to post any scsi buffer, return error */ | |
773 | if (num_posted == 0) | |
774 | rc = -EIO; | |
775 | } | |
da0436e9 JS |
776 | return rc; |
777 | } | |
778 | ||
779 | /** | |
780 | * lpfc_new_scsi_buf_s4 - Scsi buffer allocator for HBA with SLI4 IF spec | |
781 | * @vport: The virtual port for which this call being executed. | |
782 | * @num_to_allocate: The requested number of buffers to allocate. | |
783 | * | |
8a9d2e80 | 784 | * This routine allocates scsi buffers for device with SLI-4 interface spec, |
da0436e9 | 785 | * the scsi buffer contains all the necessary information needed to initiate |
8a9d2e80 JS |
786 | * a SCSI I/O. After allocating up to @num_to_allocate SCSI buffers and put |
787 | * them on a list, it post them to the port by using SGL block post. | |
da0436e9 JS |
788 | * |
789 | * Return codes: | |
8a9d2e80 | 790 | * int - number of scsi buffers that were allocated and posted. |
da0436e9 JS |
791 | * 0 = failure, less than num_to_alloc is a partial failure. |
792 | **/ | |
793 | static int | |
794 | lpfc_new_scsi_buf_s4(struct lpfc_vport *vport, int num_to_alloc) | |
795 | { | |
796 | struct lpfc_hba *phba = vport->phba; | |
797 | struct lpfc_scsi_buf *psb; | |
798 | struct sli4_sge *sgl; | |
799 | IOCB_t *iocb; | |
800 | dma_addr_t pdma_phys_fcp_cmd; | |
801 | dma_addr_t pdma_phys_fcp_rsp; | |
96f7077f | 802 | dma_addr_t pdma_phys_bpl; |
8a9d2e80 | 803 | uint16_t iotag, lxri = 0; |
96f7077f | 804 | int bcnt, num_posted, sgl_size; |
8a9d2e80 JS |
805 | LIST_HEAD(prep_sblist); |
806 | LIST_HEAD(post_sblist); | |
807 | LIST_HEAD(scsi_sblist); | |
da0436e9 | 808 | |
96f7077f JS |
809 | sgl_size = phba->cfg_sg_dma_buf_size - |
810 | (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp)); | |
811 | ||
812 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
813 | "9068 ALLOC %d scsi_bufs: %d (%d + %d + %d)\n", | |
814 | num_to_alloc, phba->cfg_sg_dma_buf_size, sgl_size, | |
815 | (int)sizeof(struct fcp_cmnd), | |
816 | (int)sizeof(struct fcp_rsp)); | |
817 | ||
da0436e9 JS |
818 | for (bcnt = 0; bcnt < num_to_alloc; bcnt++) { |
819 | psb = kzalloc(sizeof(struct lpfc_scsi_buf), GFP_KERNEL); | |
820 | if (!psb) | |
821 | break; | |
da0436e9 | 822 | /* |
8a9d2e80 JS |
823 | * Get memory from the pci pool to map the virt space to |
824 | * pci bus space for an I/O. The DMA buffer includes space | |
825 | * for the struct fcp_cmnd, struct fcp_rsp and the number | |
826 | * of bde's necessary to support the sg_tablesize. | |
da0436e9 | 827 | */ |
895427bd | 828 | psb->data = pci_pool_zalloc(phba->lpfc_sg_dma_buf_pool, |
da0436e9 JS |
829 | GFP_KERNEL, &psb->dma_handle); |
830 | if (!psb->data) { | |
831 | kfree(psb); | |
832 | break; | |
833 | } | |
da0436e9 | 834 | |
092cb034 JS |
835 | /* |
836 | * 4K Page alignment is CRITICAL to BlockGuard, double check | |
837 | * to be sure. | |
838 | */ | |
839 | if (phba->cfg_enable_bg && (((unsigned long)(psb->data) & | |
840 | (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) { | |
895427bd | 841 | pci_pool_free(phba->lpfc_sg_dma_buf_pool, |
96f7077f JS |
842 | psb->data, psb->dma_handle); |
843 | kfree(psb); | |
844 | break; | |
845 | } | |
846 | ||
f7bc6434 JS |
847 | |
848 | lxri = lpfc_sli4_next_xritag(phba); | |
849 | if (lxri == NO_XRI) { | |
895427bd JS |
850 | pci_pool_free(phba->lpfc_sg_dma_buf_pool, |
851 | psb->data, psb->dma_handle); | |
da0436e9 JS |
852 | kfree(psb); |
853 | break; | |
854 | } | |
855 | ||
f7bc6434 JS |
856 | /* Allocate iotag for psb->cur_iocbq. */ |
857 | iotag = lpfc_sli_next_iotag(phba, &psb->cur_iocbq); | |
858 | if (iotag == 0) { | |
895427bd JS |
859 | pci_pool_free(phba->lpfc_sg_dma_buf_pool, |
860 | psb->data, psb->dma_handle); | |
da0436e9 | 861 | kfree(psb); |
f7bc6434 | 862 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, |
4b160ae8 | 863 | "3368 Failed to allocate IOTAG for" |
f7bc6434 JS |
864 | " XRI:0x%x\n", lxri); |
865 | lpfc_sli4_free_xri(phba, lxri); | |
da0436e9 JS |
866 | break; |
867 | } | |
6d368e53 JS |
868 | psb->cur_iocbq.sli4_lxritag = lxri; |
869 | psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; | |
da0436e9 | 870 | psb->cur_iocbq.iocb_flag |= LPFC_IO_FCP; |
da0436e9 | 871 | psb->fcp_bpl = psb->data; |
96f7077f | 872 | psb->fcp_cmnd = (psb->data + sgl_size); |
da0436e9 JS |
873 | psb->fcp_rsp = (struct fcp_rsp *)((uint8_t *)psb->fcp_cmnd + |
874 | sizeof(struct fcp_cmnd)); | |
875 | ||
876 | /* Initialize local short-hand pointers. */ | |
877 | sgl = (struct sli4_sge *)psb->fcp_bpl; | |
878 | pdma_phys_bpl = psb->dma_handle; | |
96f7077f | 879 | pdma_phys_fcp_cmd = (psb->dma_handle + sgl_size); |
da0436e9 JS |
880 | pdma_phys_fcp_rsp = pdma_phys_fcp_cmd + sizeof(struct fcp_cmnd); |
881 | ||
882 | /* | |
8a9d2e80 JS |
883 | * The first two bdes are the FCP_CMD and FCP_RSP. |
884 | * The balance are sg list bdes. Initialize the | |
885 | * first two and leave the rest for queuecommand. | |
da0436e9 JS |
886 | */ |
887 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(pdma_phys_fcp_cmd)); | |
888 | sgl->addr_lo = cpu_to_le32(putPaddrLow(pdma_phys_fcp_cmd)); | |
0558056c | 889 | sgl->word2 = le32_to_cpu(sgl->word2); |
da0436e9 JS |
890 | bf_set(lpfc_sli4_sge_last, sgl, 0); |
891 | sgl->word2 = cpu_to_le32(sgl->word2); | |
28baac74 | 892 | sgl->sge_len = cpu_to_le32(sizeof(struct fcp_cmnd)); |
da0436e9 JS |
893 | sgl++; |
894 | ||
895 | /* Setup the physical region for the FCP RSP */ | |
896 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(pdma_phys_fcp_rsp)); | |
897 | sgl->addr_lo = cpu_to_le32(putPaddrLow(pdma_phys_fcp_rsp)); | |
0558056c | 898 | sgl->word2 = le32_to_cpu(sgl->word2); |
da0436e9 JS |
899 | bf_set(lpfc_sli4_sge_last, sgl, 1); |
900 | sgl->word2 = cpu_to_le32(sgl->word2); | |
28baac74 | 901 | sgl->sge_len = cpu_to_le32(sizeof(struct fcp_rsp)); |
da0436e9 JS |
902 | |
903 | /* | |
904 | * Since the IOCB for the FCP I/O is built into this | |
905 | * lpfc_scsi_buf, initialize it with all known data now. | |
906 | */ | |
907 | iocb = &psb->cur_iocbq.iocb; | |
908 | iocb->un.fcpi64.bdl.ulpIoTag32 = 0; | |
909 | iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BDE_64; | |
910 | /* setting the BLP size to 2 * sizeof BDE may not be correct. | |
911 | * We are setting the bpl to point to out sgl. An sgl's | |
912 | * entries are 16 bytes, a bpl entries are 12 bytes. | |
913 | */ | |
914 | iocb->un.fcpi64.bdl.bdeSize = sizeof(struct fcp_cmnd); | |
915 | iocb->un.fcpi64.bdl.addrLow = putPaddrLow(pdma_phys_fcp_cmd); | |
916 | iocb->un.fcpi64.bdl.addrHigh = putPaddrHigh(pdma_phys_fcp_cmd); | |
917 | iocb->ulpBdeCount = 1; | |
918 | iocb->ulpLe = 1; | |
919 | iocb->ulpClass = CLASS3; | |
8a9d2e80 | 920 | psb->cur_iocbq.context1 = psb; |
da0436e9 | 921 | psb->dma_phys_bpl = pdma_phys_bpl; |
da0436e9 | 922 | |
8a9d2e80 JS |
923 | /* add the scsi buffer to a post list */ |
924 | list_add_tail(&psb->list, &post_sblist); | |
a40fc5f0 | 925 | spin_lock_irq(&phba->scsi_buf_list_get_lock); |
8a9d2e80 | 926 | phba->sli4_hba.scsi_xri_cnt++; |
a40fc5f0 | 927 | spin_unlock_irq(&phba->scsi_buf_list_get_lock); |
8a9d2e80 | 928 | } |
895427bd | 929 | lpfc_printf_log(phba, KERN_INFO, LOG_BG | LOG_FCP, |
8a9d2e80 JS |
930 | "3021 Allocate %d out of %d requested new SCSI " |
931 | "buffers\n", bcnt, num_to_alloc); | |
932 | ||
933 | /* post the list of scsi buffer sgls to port if available */ | |
934 | if (!list_empty(&post_sblist)) | |
935 | num_posted = lpfc_sli4_post_scsi_sgl_list(phba, | |
936 | &post_sblist, bcnt); | |
937 | else | |
938 | num_posted = 0; | |
939 | ||
940 | return num_posted; | |
da0436e9 JS |
941 | } |
942 | ||
9bad7671 | 943 | /** |
3772a991 JS |
944 | * lpfc_new_scsi_buf - Wrapper funciton for scsi buffer allocator |
945 | * @vport: The virtual port for which this call being executed. | |
946 | * @num_to_allocate: The requested number of buffers to allocate. | |
947 | * | |
948 | * This routine wraps the actual SCSI buffer allocator function pointer from | |
949 | * the lpfc_hba struct. | |
950 | * | |
951 | * Return codes: | |
952 | * int - number of scsi buffers that were allocated. | |
953 | * 0 = failure, less than num_to_alloc is a partial failure. | |
954 | **/ | |
955 | static inline int | |
956 | lpfc_new_scsi_buf(struct lpfc_vport *vport, int num_to_alloc) | |
957 | { | |
958 | return vport->phba->lpfc_new_scsi_buf(vport, num_to_alloc); | |
959 | } | |
960 | ||
961 | /** | |
19ca7609 | 962 | * lpfc_get_scsi_buf_s3 - Get a scsi buffer from lpfc_scsi_buf_list of the HBA |
3772a991 | 963 | * @phba: The HBA for which this call is being executed. |
9bad7671 JS |
964 | * |
965 | * This routine removes a scsi buffer from head of @phba lpfc_scsi_buf_list list | |
966 | * and returns to caller. | |
967 | * | |
968 | * Return codes: | |
969 | * NULL - Error | |
970 | * Pointer to lpfc_scsi_buf - Success | |
971 | **/ | |
455c53ec | 972 | static struct lpfc_scsi_buf* |
19ca7609 | 973 | lpfc_get_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) |
dea3101e | 974 | { |
0bd4ca25 | 975 | struct lpfc_scsi_buf * lpfc_cmd = NULL; |
a40fc5f0 | 976 | struct list_head *scsi_buf_list_get = &phba->lpfc_scsi_buf_list_get; |
164cecd1 | 977 | unsigned long iflag = 0; |
a40fc5f0 | 978 | |
164cecd1 | 979 | spin_lock_irqsave(&phba->scsi_buf_list_get_lock, iflag); |
a40fc5f0 JS |
980 | list_remove_head(scsi_buf_list_get, lpfc_cmd, struct lpfc_scsi_buf, |
981 | list); | |
982 | if (!lpfc_cmd) { | |
164cecd1 | 983 | spin_lock(&phba->scsi_buf_list_put_lock); |
a40fc5f0 JS |
984 | list_splice(&phba->lpfc_scsi_buf_list_put, |
985 | &phba->lpfc_scsi_buf_list_get); | |
986 | INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); | |
987 | list_remove_head(scsi_buf_list_get, lpfc_cmd, | |
988 | struct lpfc_scsi_buf, list); | |
164cecd1 | 989 | spin_unlock(&phba->scsi_buf_list_put_lock); |
1dcb58e5 | 990 | } |
164cecd1 | 991 | spin_unlock_irqrestore(&phba->scsi_buf_list_get_lock, iflag); |
0bd4ca25 JSEC |
992 | return lpfc_cmd; |
993 | } | |
19ca7609 JS |
994 | /** |
995 | * lpfc_get_scsi_buf_s4 - Get a scsi buffer from lpfc_scsi_buf_list of the HBA | |
996 | * @phba: The HBA for which this call is being executed. | |
997 | * | |
998 | * This routine removes a scsi buffer from head of @phba lpfc_scsi_buf_list list | |
999 | * and returns to caller. | |
1000 | * | |
1001 | * Return codes: | |
1002 | * NULL - Error | |
1003 | * Pointer to lpfc_scsi_buf - Success | |
1004 | **/ | |
1005 | static struct lpfc_scsi_buf* | |
1006 | lpfc_get_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) | |
1007 | { | |
3be30e0e | 1008 | struct lpfc_scsi_buf *lpfc_cmd, *lpfc_cmd_next; |
164cecd1 | 1009 | unsigned long iflag = 0; |
19ca7609 JS |
1010 | int found = 0; |
1011 | ||
164cecd1 | 1012 | spin_lock_irqsave(&phba->scsi_buf_list_get_lock, iflag); |
3be30e0e JS |
1013 | list_for_each_entry_safe(lpfc_cmd, lpfc_cmd_next, |
1014 | &phba->lpfc_scsi_buf_list_get, list) { | |
19ca7609 | 1015 | if (lpfc_test_rrq_active(phba, ndlp, |
ee0f4fe1 | 1016 | lpfc_cmd->cur_iocbq.sli4_lxritag)) |
1151e3ec JS |
1017 | continue; |
1018 | list_del(&lpfc_cmd->list); | |
19ca7609 | 1019 | found = 1; |
1151e3ec | 1020 | break; |
19ca7609 | 1021 | } |
a40fc5f0 | 1022 | if (!found) { |
164cecd1 | 1023 | spin_lock(&phba->scsi_buf_list_put_lock); |
a40fc5f0 JS |
1024 | list_splice(&phba->lpfc_scsi_buf_list_put, |
1025 | &phba->lpfc_scsi_buf_list_get); | |
1026 | INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); | |
164cecd1 | 1027 | spin_unlock(&phba->scsi_buf_list_put_lock); |
3be30e0e JS |
1028 | list_for_each_entry_safe(lpfc_cmd, lpfc_cmd_next, |
1029 | &phba->lpfc_scsi_buf_list_get, list) { | |
a40fc5f0 JS |
1030 | if (lpfc_test_rrq_active( |
1031 | phba, ndlp, lpfc_cmd->cur_iocbq.sli4_lxritag)) | |
1032 | continue; | |
1033 | list_del(&lpfc_cmd->list); | |
1034 | found = 1; | |
1035 | break; | |
1036 | } | |
1037 | } | |
164cecd1 | 1038 | spin_unlock_irqrestore(&phba->scsi_buf_list_get_lock, iflag); |
1151e3ec JS |
1039 | if (!found) |
1040 | return NULL; | |
a40fc5f0 | 1041 | return lpfc_cmd; |
19ca7609 JS |
1042 | } |
1043 | /** | |
1044 | * lpfc_get_scsi_buf - Get a scsi buffer from lpfc_scsi_buf_list of the HBA | |
1045 | * @phba: The HBA for which this call is being executed. | |
1046 | * | |
1047 | * This routine removes a scsi buffer from head of @phba lpfc_scsi_buf_list list | |
1048 | * and returns to caller. | |
1049 | * | |
1050 | * Return codes: | |
1051 | * NULL - Error | |
1052 | * Pointer to lpfc_scsi_buf - Success | |
1053 | **/ | |
1054 | static struct lpfc_scsi_buf* | |
1055 | lpfc_get_scsi_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) | |
1056 | { | |
1057 | return phba->lpfc_get_scsi_buf(phba, ndlp); | |
1058 | } | |
dea3101e | 1059 | |
9bad7671 | 1060 | /** |
3772a991 | 1061 | * lpfc_release_scsi_buf - Return a scsi buffer back to hba scsi buf list |
9bad7671 JS |
1062 | * @phba: The Hba for which this call is being executed. |
1063 | * @psb: The scsi buffer which is being released. | |
1064 | * | |
1065 | * This routine releases @psb scsi buffer by adding it to tail of @phba | |
1066 | * lpfc_scsi_buf_list list. | |
1067 | **/ | |
0bd4ca25 | 1068 | static void |
3772a991 | 1069 | lpfc_release_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) |
0bd4ca25 | 1070 | { |
875fbdfe | 1071 | unsigned long iflag = 0; |
dea3101e | 1072 | |
a40fc5f0 JS |
1073 | psb->seg_cnt = 0; |
1074 | psb->nonsg_phys = 0; | |
1075 | psb->prot_seg_cnt = 0; | |
1076 | ||
1077 | spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag); | |
0bd4ca25 | 1078 | psb->pCmd = NULL; |
6a485eb9 | 1079 | psb->cur_iocbq.iocb_flag = LPFC_IO_FCP; |
a40fc5f0 JS |
1080 | list_add_tail(&psb->list, &phba->lpfc_scsi_buf_list_put); |
1081 | spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag); | |
dea3101e JB |
1082 | } |
1083 | ||
da0436e9 JS |
1084 | /** |
1085 | * lpfc_release_scsi_buf_s4: Return a scsi buffer back to hba scsi buf list. | |
1086 | * @phba: The Hba for which this call is being executed. | |
1087 | * @psb: The scsi buffer which is being released. | |
1088 | * | |
1089 | * This routine releases @psb scsi buffer by adding it to tail of @phba | |
1090 | * lpfc_scsi_buf_list list. For SLI4 XRI's are tied to the scsi buffer | |
1091 | * and cannot be reused for at least RA_TOV amount of time if it was | |
1092 | * aborted. | |
1093 | **/ | |
1094 | static void | |
1095 | lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) | |
1096 | { | |
1097 | unsigned long iflag = 0; | |
1098 | ||
a40fc5f0 JS |
1099 | psb->seg_cnt = 0; |
1100 | psb->nonsg_phys = 0; | |
1101 | psb->prot_seg_cnt = 0; | |
1102 | ||
341af102 | 1103 | if (psb->exch_busy) { |
da0436e9 JS |
1104 | spin_lock_irqsave(&phba->sli4_hba.abts_scsi_buf_list_lock, |
1105 | iflag); | |
1106 | psb->pCmd = NULL; | |
1107 | list_add_tail(&psb->list, | |
1108 | &phba->sli4_hba.lpfc_abts_scsi_buf_list); | |
1109 | spin_unlock_irqrestore(&phba->sli4_hba.abts_scsi_buf_list_lock, | |
1110 | iflag); | |
1111 | } else { | |
da0436e9 | 1112 | psb->pCmd = NULL; |
6a485eb9 | 1113 | psb->cur_iocbq.iocb_flag = LPFC_IO_FCP; |
a40fc5f0 JS |
1114 | spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag); |
1115 | list_add_tail(&psb->list, &phba->lpfc_scsi_buf_list_put); | |
1116 | spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag); | |
da0436e9 JS |
1117 | } |
1118 | } | |
1119 | ||
9bad7671 | 1120 | /** |
3772a991 JS |
1121 | * lpfc_release_scsi_buf: Return a scsi buffer back to hba scsi buf list. |
1122 | * @phba: The Hba for which this call is being executed. | |
1123 | * @psb: The scsi buffer which is being released. | |
1124 | * | |
1125 | * This routine releases @psb scsi buffer by adding it to tail of @phba | |
1126 | * lpfc_scsi_buf_list list. | |
1127 | **/ | |
1128 | static void | |
1129 | lpfc_release_scsi_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) | |
1130 | { | |
1131 | ||
1132 | phba->lpfc_release_scsi_buf(phba, psb); | |
1133 | } | |
1134 | ||
1135 | /** | |
1136 | * lpfc_scsi_prep_dma_buf_s3 - DMA mapping for scsi buffer to SLI3 IF spec | |
9bad7671 JS |
1137 | * @phba: The Hba for which this call is being executed. |
1138 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
1139 | * | |
1140 | * This routine does the pci dma mapping for scatter-gather list of scsi cmnd | |
3772a991 | 1141 | * field of @lpfc_cmd for device with SLI-3 interface spec. This routine scans |
4b160ae8 | 1142 | * through sg elements and format the bde. This routine also initializes all |
3772a991 | 1143 | * IOCB fields which are dependent on scsi command request buffer. |
9bad7671 JS |
1144 | * |
1145 | * Return codes: | |
1146 | * 1 - Error | |
1147 | * 0 - Success | |
1148 | **/ | |
dea3101e | 1149 | static int |
3772a991 | 1150 | lpfc_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) |
dea3101e JB |
1151 | { |
1152 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
1153 | struct scatterlist *sgel = NULL; | |
1154 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
1155 | struct ulp_bde64 *bpl = lpfc_cmd->fcp_bpl; | |
0f65ff68 | 1156 | struct lpfc_iocbq *iocbq = &lpfc_cmd->cur_iocbq; |
dea3101e | 1157 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; |
34b02dcd | 1158 | struct ulp_bde64 *data_bde = iocb_cmd->unsli3.fcp_ext.dbde; |
dea3101e | 1159 | dma_addr_t physaddr; |
34b02dcd | 1160 | uint32_t num_bde = 0; |
a0b4f78f | 1161 | int nseg, datadir = scsi_cmnd->sc_data_direction; |
dea3101e JB |
1162 | |
1163 | /* | |
1164 | * There are three possibilities here - use scatter-gather segment, use | |
1165 | * the single mapping, or neither. Start the lpfc command prep by | |
1166 | * bumping the bpl beyond the fcp_cmnd and fcp_rsp regions to the first | |
1167 | * data bde entry. | |
1168 | */ | |
1169 | bpl += 2; | |
c59fd9eb | 1170 | if (scsi_sg_count(scsi_cmnd)) { |
dea3101e JB |
1171 | /* |
1172 | * The driver stores the segment count returned from pci_map_sg | |
1173 | * because this a count of dma-mappings used to map the use_sg | |
1174 | * pages. They are not guaranteed to be the same for those | |
1175 | * architectures that implement an IOMMU. | |
1176 | */ | |
dea3101e | 1177 | |
c59fd9eb FT |
1178 | nseg = dma_map_sg(&phba->pcidev->dev, scsi_sglist(scsi_cmnd), |
1179 | scsi_sg_count(scsi_cmnd), datadir); | |
1180 | if (unlikely(!nseg)) | |
1181 | return 1; | |
1182 | ||
a0b4f78f | 1183 | lpfc_cmd->seg_cnt = nseg; |
dea3101e | 1184 | if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) { |
6a9c52cf JS |
1185 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
1186 | "9064 BLKGRD: %s: Too many sg segments from " | |
e2a0a9d6 | 1187 | "dma_map_sg. Config %d, seg_cnt %d\n", |
cadbd4a5 | 1188 | __func__, phba->cfg_sg_seg_cnt, |
dea3101e | 1189 | lpfc_cmd->seg_cnt); |
96f7077f | 1190 | lpfc_cmd->seg_cnt = 0; |
a0b4f78f | 1191 | scsi_dma_unmap(scsi_cmnd); |
dea3101e JB |
1192 | return 1; |
1193 | } | |
1194 | ||
1195 | /* | |
1196 | * The driver established a maximum scatter-gather segment count | |
1197 | * during probe that limits the number of sg elements in any | |
1198 | * single scsi command. Just run through the seg_cnt and format | |
1199 | * the bde's. | |
34b02dcd JS |
1200 | * When using SLI-3 the driver will try to fit all the BDEs into |
1201 | * the IOCB. If it can't then the BDEs get added to a BPL as it | |
1202 | * does for SLI-2 mode. | |
dea3101e | 1203 | */ |
34b02dcd | 1204 | scsi_for_each_sg(scsi_cmnd, sgel, nseg, num_bde) { |
dea3101e | 1205 | physaddr = sg_dma_address(sgel); |
34b02dcd | 1206 | if (phba->sli_rev == 3 && |
e2a0a9d6 | 1207 | !(phba->sli3_options & LPFC_SLI3_BG_ENABLED) && |
0f65ff68 | 1208 | !(iocbq->iocb_flag & DSS_SECURITY_OP) && |
34b02dcd JS |
1209 | nseg <= LPFC_EXT_DATA_BDE_COUNT) { |
1210 | data_bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
1211 | data_bde->tus.f.bdeSize = sg_dma_len(sgel); | |
1212 | data_bde->addrLow = putPaddrLow(physaddr); | |
1213 | data_bde->addrHigh = putPaddrHigh(physaddr); | |
1214 | data_bde++; | |
1215 | } else { | |
1216 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
1217 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
1218 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
1219 | bpl->addrLow = | |
1220 | le32_to_cpu(putPaddrLow(physaddr)); | |
1221 | bpl->addrHigh = | |
1222 | le32_to_cpu(putPaddrHigh(physaddr)); | |
1223 | bpl++; | |
1224 | } | |
dea3101e | 1225 | } |
c59fd9eb | 1226 | } |
dea3101e JB |
1227 | |
1228 | /* | |
1229 | * Finish initializing those IOCB fields that are dependent on the | |
34b02dcd JS |
1230 | * scsi_cmnd request_buffer. Note that for SLI-2 the bdeSize is |
1231 | * explicitly reinitialized and for SLI-3 the extended bde count is | |
1232 | * explicitly reinitialized since all iocb memory resources are reused. | |
dea3101e | 1233 | */ |
e2a0a9d6 | 1234 | if (phba->sli_rev == 3 && |
0f65ff68 JS |
1235 | !(phba->sli3_options & LPFC_SLI3_BG_ENABLED) && |
1236 | !(iocbq->iocb_flag & DSS_SECURITY_OP)) { | |
34b02dcd JS |
1237 | if (num_bde > LPFC_EXT_DATA_BDE_COUNT) { |
1238 | /* | |
1239 | * The extended IOCB format can only fit 3 BDE or a BPL. | |
1240 | * This I/O has more than 3 BDE so the 1st data bde will | |
1241 | * be a BPL that is filled in here. | |
1242 | */ | |
1243 | physaddr = lpfc_cmd->dma_handle; | |
1244 | data_bde->tus.f.bdeFlags = BUFF_TYPE_BLP_64; | |
1245 | data_bde->tus.f.bdeSize = (num_bde * | |
1246 | sizeof(struct ulp_bde64)); | |
1247 | physaddr += (sizeof(struct fcp_cmnd) + | |
1248 | sizeof(struct fcp_rsp) + | |
1249 | (2 * sizeof(struct ulp_bde64))); | |
1250 | data_bde->addrHigh = putPaddrHigh(physaddr); | |
1251 | data_bde->addrLow = putPaddrLow(physaddr); | |
25985edc | 1252 | /* ebde count includes the response bde and data bpl */ |
34b02dcd JS |
1253 | iocb_cmd->unsli3.fcp_ext.ebde_count = 2; |
1254 | } else { | |
25985edc | 1255 | /* ebde count includes the response bde and data bdes */ |
34b02dcd JS |
1256 | iocb_cmd->unsli3.fcp_ext.ebde_count = (num_bde + 1); |
1257 | } | |
1258 | } else { | |
1259 | iocb_cmd->un.fcpi64.bdl.bdeSize = | |
1260 | ((num_bde + 2) * sizeof(struct ulp_bde64)); | |
0f65ff68 | 1261 | iocb_cmd->unsli3.fcp_ext.ebde_count = (num_bde + 1); |
34b02dcd | 1262 | } |
09372820 | 1263 | fcp_cmnd->fcpDl = cpu_to_be32(scsi_bufflen(scsi_cmnd)); |
e2a0a9d6 JS |
1264 | |
1265 | /* | |
1266 | * Due to difference in data length between DIF/non-DIF paths, | |
1267 | * we need to set word 4 of IOCB here | |
1268 | */ | |
a257bf90 | 1269 | iocb_cmd->un.fcpi.fcpi_parm = scsi_bufflen(scsi_cmnd); |
e2a0a9d6 JS |
1270 | return 0; |
1271 | } | |
1272 | ||
f9bb2da1 | 1273 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 1274 | |
4b160ae8 | 1275 | /* Return BG_ERR_INIT if error injection is detected by Initiator */ |
9a6b09c0 | 1276 | #define BG_ERR_INIT 0x1 |
4b160ae8 | 1277 | /* Return BG_ERR_TGT if error injection is detected by Target */ |
9a6b09c0 | 1278 | #define BG_ERR_TGT 0x2 |
4b160ae8 | 1279 | /* Return BG_ERR_SWAP if swapping CSUM<-->CRC is required for error injection */ |
9a6b09c0 | 1280 | #define BG_ERR_SWAP 0x10 |
4b160ae8 MG |
1281 | /** |
1282 | * Return BG_ERR_CHECK if disabling Guard/Ref/App checking is required for | |
1283 | * error injection | |
1284 | **/ | |
9a6b09c0 | 1285 | #define BG_ERR_CHECK 0x20 |
acd6859b JS |
1286 | |
1287 | /** | |
1288 | * lpfc_bg_err_inject - Determine if we should inject an error | |
1289 | * @phba: The Hba for which this call is being executed. | |
f9bb2da1 JS |
1290 | * @sc: The SCSI command to examine |
1291 | * @reftag: (out) BlockGuard reference tag for transmitted data | |
1292 | * @apptag: (out) BlockGuard application tag for transmitted data | |
1293 | * @new_guard (in) Value to replace CRC with if needed | |
1294 | * | |
9a6b09c0 | 1295 | * Returns BG_ERR_* bit mask or 0 if request ignored |
acd6859b | 1296 | **/ |
f9bb2da1 JS |
1297 | static int |
1298 | lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
1299 | uint32_t *reftag, uint16_t *apptag, uint32_t new_guard) | |
1300 | { | |
1301 | struct scatterlist *sgpe; /* s/g prot entry */ | |
9a6b09c0 | 1302 | struct lpfc_scsi_buf *lpfc_cmd = NULL; |
acd6859b | 1303 | struct scsi_dif_tuple *src = NULL; |
4ac9b226 JS |
1304 | struct lpfc_nodelist *ndlp; |
1305 | struct lpfc_rport_data *rdata; | |
f9bb2da1 JS |
1306 | uint32_t op = scsi_get_prot_op(sc); |
1307 | uint32_t blksize; | |
1308 | uint32_t numblks; | |
1309 | sector_t lba; | |
1310 | int rc = 0; | |
acd6859b | 1311 | int blockoff = 0; |
f9bb2da1 JS |
1312 | |
1313 | if (op == SCSI_PROT_NORMAL) | |
1314 | return 0; | |
1315 | ||
acd6859b | 1316 | sgpe = scsi_prot_sglist(sc); |
f9bb2da1 | 1317 | lba = scsi_get_lba(sc); |
4ac9b226 JS |
1318 | |
1319 | /* First check if we need to match the LBA */ | |
f9bb2da1 JS |
1320 | if (phba->lpfc_injerr_lba != LPFC_INJERR_LBA_OFF) { |
1321 | blksize = lpfc_cmd_blksize(sc); | |
1322 | numblks = (scsi_bufflen(sc) + blksize - 1) / blksize; | |
1323 | ||
1324 | /* Make sure we have the right LBA if one is specified */ | |
1325 | if ((phba->lpfc_injerr_lba < lba) || | |
1326 | (phba->lpfc_injerr_lba >= (lba + numblks))) | |
1327 | return 0; | |
acd6859b JS |
1328 | if (sgpe) { |
1329 | blockoff = phba->lpfc_injerr_lba - lba; | |
1330 | numblks = sg_dma_len(sgpe) / | |
1331 | sizeof(struct scsi_dif_tuple); | |
1332 | if (numblks < blockoff) | |
1333 | blockoff = numblks; | |
acd6859b | 1334 | } |
f9bb2da1 JS |
1335 | } |
1336 | ||
4ac9b226 | 1337 | /* Next check if we need to match the remote NPortID or WWPN */ |
1ba981fd | 1338 | rdata = lpfc_rport_data_from_scsi_device(sc->device); |
4ac9b226 JS |
1339 | if (rdata && rdata->pnode) { |
1340 | ndlp = rdata->pnode; | |
1341 | ||
1342 | /* Make sure we have the right NPortID if one is specified */ | |
1343 | if (phba->lpfc_injerr_nportid && | |
1344 | (phba->lpfc_injerr_nportid != ndlp->nlp_DID)) | |
1345 | return 0; | |
1346 | ||
1347 | /* | |
1348 | * Make sure we have the right WWPN if one is specified. | |
1349 | * wwn[0] should be a non-zero NAA in a good WWPN. | |
1350 | */ | |
1351 | if (phba->lpfc_injerr_wwpn.u.wwn[0] && | |
1352 | (memcmp(&ndlp->nlp_portname, &phba->lpfc_injerr_wwpn, | |
1353 | sizeof(struct lpfc_name)) != 0)) | |
1354 | return 0; | |
1355 | } | |
1356 | ||
1357 | /* Setup a ptr to the protection data if the SCSI host provides it */ | |
1358 | if (sgpe) { | |
1359 | src = (struct scsi_dif_tuple *)sg_virt(sgpe); | |
1360 | src += blockoff; | |
1361 | lpfc_cmd = (struct lpfc_scsi_buf *)sc->host_scribble; | |
1362 | } | |
1363 | ||
f9bb2da1 JS |
1364 | /* Should we change the Reference Tag */ |
1365 | if (reftag) { | |
acd6859b JS |
1366 | if (phba->lpfc_injerr_wref_cnt) { |
1367 | switch (op) { | |
1368 | case SCSI_PROT_WRITE_PASS: | |
9a6b09c0 JS |
1369 | if (src) { |
1370 | /* | |
1371 | * For WRITE_PASS, force the error | |
1372 | * to be sent on the wire. It should | |
1373 | * be detected by the Target. | |
1374 | * If blockoff != 0 error will be | |
1375 | * inserted in middle of the IO. | |
1376 | */ | |
acd6859b JS |
1377 | |
1378 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
1379 | "9076 BLKGRD: Injecting reftag error: " | |
1380 | "write lba x%lx + x%x oldrefTag x%x\n", | |
1381 | (unsigned long)lba, blockoff, | |
9a6b09c0 | 1382 | be32_to_cpu(src->ref_tag)); |
f9bb2da1 | 1383 | |
acd6859b | 1384 | /* |
9a6b09c0 JS |
1385 | * Save the old ref_tag so we can |
1386 | * restore it on completion. | |
acd6859b | 1387 | */ |
9a6b09c0 JS |
1388 | if (lpfc_cmd) { |
1389 | lpfc_cmd->prot_data_type = | |
1390 | LPFC_INJERR_REFTAG; | |
1391 | lpfc_cmd->prot_data_segment = | |
1392 | src; | |
1393 | lpfc_cmd->prot_data = | |
1394 | src->ref_tag; | |
1395 | } | |
1396 | src->ref_tag = cpu_to_be32(0xDEADBEEF); | |
acd6859b | 1397 | phba->lpfc_injerr_wref_cnt--; |
4ac9b226 JS |
1398 | if (phba->lpfc_injerr_wref_cnt == 0) { |
1399 | phba->lpfc_injerr_nportid = 0; | |
1400 | phba->lpfc_injerr_lba = | |
1401 | LPFC_INJERR_LBA_OFF; | |
1402 | memset(&phba->lpfc_injerr_wwpn, | |
1403 | 0, sizeof(struct lpfc_name)); | |
1404 | } | |
9a6b09c0 JS |
1405 | rc = BG_ERR_TGT | BG_ERR_CHECK; |
1406 | ||
acd6859b JS |
1407 | break; |
1408 | } | |
1409 | /* Drop thru */ | |
9a6b09c0 | 1410 | case SCSI_PROT_WRITE_INSERT: |
acd6859b | 1411 | /* |
9a6b09c0 JS |
1412 | * For WRITE_INSERT, force the error |
1413 | * to be sent on the wire. It should be | |
1414 | * detected by the Target. | |
acd6859b | 1415 | */ |
9a6b09c0 | 1416 | /* DEADBEEF will be the reftag on the wire */ |
acd6859b JS |
1417 | *reftag = 0xDEADBEEF; |
1418 | phba->lpfc_injerr_wref_cnt--; | |
4ac9b226 JS |
1419 | if (phba->lpfc_injerr_wref_cnt == 0) { |
1420 | phba->lpfc_injerr_nportid = 0; | |
1421 | phba->lpfc_injerr_lba = | |
1422 | LPFC_INJERR_LBA_OFF; | |
1423 | memset(&phba->lpfc_injerr_wwpn, | |
1424 | 0, sizeof(struct lpfc_name)); | |
1425 | } | |
9a6b09c0 | 1426 | rc = BG_ERR_TGT | BG_ERR_CHECK; |
acd6859b JS |
1427 | |
1428 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
9a6b09c0 | 1429 | "9078 BLKGRD: Injecting reftag error: " |
acd6859b JS |
1430 | "write lba x%lx\n", (unsigned long)lba); |
1431 | break; | |
9a6b09c0 | 1432 | case SCSI_PROT_WRITE_STRIP: |
acd6859b | 1433 | /* |
9a6b09c0 JS |
1434 | * For WRITE_STRIP and WRITE_PASS, |
1435 | * force the error on data | |
1436 | * being copied from SLI-Host to SLI-Port. | |
acd6859b | 1437 | */ |
f9bb2da1 JS |
1438 | *reftag = 0xDEADBEEF; |
1439 | phba->lpfc_injerr_wref_cnt--; | |
4ac9b226 JS |
1440 | if (phba->lpfc_injerr_wref_cnt == 0) { |
1441 | phba->lpfc_injerr_nportid = 0; | |
1442 | phba->lpfc_injerr_lba = | |
1443 | LPFC_INJERR_LBA_OFF; | |
1444 | memset(&phba->lpfc_injerr_wwpn, | |
1445 | 0, sizeof(struct lpfc_name)); | |
1446 | } | |
9a6b09c0 | 1447 | rc = BG_ERR_INIT; |
f9bb2da1 JS |
1448 | |
1449 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
9a6b09c0 | 1450 | "9077 BLKGRD: Injecting reftag error: " |
f9bb2da1 | 1451 | "write lba x%lx\n", (unsigned long)lba); |
acd6859b | 1452 | break; |
f9bb2da1 | 1453 | } |
acd6859b JS |
1454 | } |
1455 | if (phba->lpfc_injerr_rref_cnt) { | |
1456 | switch (op) { | |
1457 | case SCSI_PROT_READ_INSERT: | |
acd6859b JS |
1458 | case SCSI_PROT_READ_STRIP: |
1459 | case SCSI_PROT_READ_PASS: | |
1460 | /* | |
1461 | * For READ_STRIP and READ_PASS, force the | |
1462 | * error on data being read off the wire. It | |
1463 | * should force an IO error to the driver. | |
1464 | */ | |
f9bb2da1 JS |
1465 | *reftag = 0xDEADBEEF; |
1466 | phba->lpfc_injerr_rref_cnt--; | |
4ac9b226 JS |
1467 | if (phba->lpfc_injerr_rref_cnt == 0) { |
1468 | phba->lpfc_injerr_nportid = 0; | |
1469 | phba->lpfc_injerr_lba = | |
1470 | LPFC_INJERR_LBA_OFF; | |
1471 | memset(&phba->lpfc_injerr_wwpn, | |
1472 | 0, sizeof(struct lpfc_name)); | |
1473 | } | |
acd6859b | 1474 | rc = BG_ERR_INIT; |
f9bb2da1 JS |
1475 | |
1476 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
acd6859b | 1477 | "9079 BLKGRD: Injecting reftag error: " |
f9bb2da1 | 1478 | "read lba x%lx\n", (unsigned long)lba); |
acd6859b | 1479 | break; |
f9bb2da1 JS |
1480 | } |
1481 | } | |
1482 | } | |
1483 | ||
1484 | /* Should we change the Application Tag */ | |
1485 | if (apptag) { | |
acd6859b JS |
1486 | if (phba->lpfc_injerr_wapp_cnt) { |
1487 | switch (op) { | |
1488 | case SCSI_PROT_WRITE_PASS: | |
4ac9b226 | 1489 | if (src) { |
9a6b09c0 JS |
1490 | /* |
1491 | * For WRITE_PASS, force the error | |
1492 | * to be sent on the wire. It should | |
1493 | * be detected by the Target. | |
1494 | * If blockoff != 0 error will be | |
1495 | * inserted in middle of the IO. | |
1496 | */ | |
1497 | ||
acd6859b JS |
1498 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
1499 | "9080 BLKGRD: Injecting apptag error: " | |
1500 | "write lba x%lx + x%x oldappTag x%x\n", | |
1501 | (unsigned long)lba, blockoff, | |
9a6b09c0 | 1502 | be16_to_cpu(src->app_tag)); |
acd6859b JS |
1503 | |
1504 | /* | |
9a6b09c0 JS |
1505 | * Save the old app_tag so we can |
1506 | * restore it on completion. | |
acd6859b | 1507 | */ |
9a6b09c0 JS |
1508 | if (lpfc_cmd) { |
1509 | lpfc_cmd->prot_data_type = | |
1510 | LPFC_INJERR_APPTAG; | |
1511 | lpfc_cmd->prot_data_segment = | |
1512 | src; | |
1513 | lpfc_cmd->prot_data = | |
1514 | src->app_tag; | |
1515 | } | |
1516 | src->app_tag = cpu_to_be16(0xDEAD); | |
acd6859b | 1517 | phba->lpfc_injerr_wapp_cnt--; |
4ac9b226 JS |
1518 | if (phba->lpfc_injerr_wapp_cnt == 0) { |
1519 | phba->lpfc_injerr_nportid = 0; | |
1520 | phba->lpfc_injerr_lba = | |
1521 | LPFC_INJERR_LBA_OFF; | |
1522 | memset(&phba->lpfc_injerr_wwpn, | |
1523 | 0, sizeof(struct lpfc_name)); | |
1524 | } | |
9a6b09c0 | 1525 | rc = BG_ERR_TGT | BG_ERR_CHECK; |
acd6859b JS |
1526 | break; |
1527 | } | |
1528 | /* Drop thru */ | |
9a6b09c0 | 1529 | case SCSI_PROT_WRITE_INSERT: |
acd6859b | 1530 | /* |
9a6b09c0 JS |
1531 | * For WRITE_INSERT, force the |
1532 | * error to be sent on the wire. It should be | |
1533 | * detected by the Target. | |
acd6859b | 1534 | */ |
9a6b09c0 | 1535 | /* DEAD will be the apptag on the wire */ |
acd6859b JS |
1536 | *apptag = 0xDEAD; |
1537 | phba->lpfc_injerr_wapp_cnt--; | |
4ac9b226 JS |
1538 | if (phba->lpfc_injerr_wapp_cnt == 0) { |
1539 | phba->lpfc_injerr_nportid = 0; | |
1540 | phba->lpfc_injerr_lba = | |
1541 | LPFC_INJERR_LBA_OFF; | |
1542 | memset(&phba->lpfc_injerr_wwpn, | |
1543 | 0, sizeof(struct lpfc_name)); | |
1544 | } | |
9a6b09c0 | 1545 | rc = BG_ERR_TGT | BG_ERR_CHECK; |
f9bb2da1 | 1546 | |
acd6859b | 1547 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
9a6b09c0 | 1548 | "0813 BLKGRD: Injecting apptag error: " |
acd6859b JS |
1549 | "write lba x%lx\n", (unsigned long)lba); |
1550 | break; | |
9a6b09c0 | 1551 | case SCSI_PROT_WRITE_STRIP: |
acd6859b | 1552 | /* |
9a6b09c0 JS |
1553 | * For WRITE_STRIP and WRITE_PASS, |
1554 | * force the error on data | |
1555 | * being copied from SLI-Host to SLI-Port. | |
acd6859b | 1556 | */ |
f9bb2da1 JS |
1557 | *apptag = 0xDEAD; |
1558 | phba->lpfc_injerr_wapp_cnt--; | |
4ac9b226 JS |
1559 | if (phba->lpfc_injerr_wapp_cnt == 0) { |
1560 | phba->lpfc_injerr_nportid = 0; | |
1561 | phba->lpfc_injerr_lba = | |
1562 | LPFC_INJERR_LBA_OFF; | |
1563 | memset(&phba->lpfc_injerr_wwpn, | |
1564 | 0, sizeof(struct lpfc_name)); | |
1565 | } | |
9a6b09c0 | 1566 | rc = BG_ERR_INIT; |
f9bb2da1 JS |
1567 | |
1568 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
9a6b09c0 | 1569 | "0812 BLKGRD: Injecting apptag error: " |
f9bb2da1 | 1570 | "write lba x%lx\n", (unsigned long)lba); |
acd6859b | 1571 | break; |
f9bb2da1 | 1572 | } |
acd6859b JS |
1573 | } |
1574 | if (phba->lpfc_injerr_rapp_cnt) { | |
1575 | switch (op) { | |
1576 | case SCSI_PROT_READ_INSERT: | |
acd6859b JS |
1577 | case SCSI_PROT_READ_STRIP: |
1578 | case SCSI_PROT_READ_PASS: | |
1579 | /* | |
1580 | * For READ_STRIP and READ_PASS, force the | |
1581 | * error on data being read off the wire. It | |
1582 | * should force an IO error to the driver. | |
1583 | */ | |
f9bb2da1 JS |
1584 | *apptag = 0xDEAD; |
1585 | phba->lpfc_injerr_rapp_cnt--; | |
4ac9b226 JS |
1586 | if (phba->lpfc_injerr_rapp_cnt == 0) { |
1587 | phba->lpfc_injerr_nportid = 0; | |
1588 | phba->lpfc_injerr_lba = | |
1589 | LPFC_INJERR_LBA_OFF; | |
1590 | memset(&phba->lpfc_injerr_wwpn, | |
1591 | 0, sizeof(struct lpfc_name)); | |
1592 | } | |
acd6859b | 1593 | rc = BG_ERR_INIT; |
f9bb2da1 JS |
1594 | |
1595 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
acd6859b | 1596 | "0814 BLKGRD: Injecting apptag error: " |
f9bb2da1 | 1597 | "read lba x%lx\n", (unsigned long)lba); |
acd6859b | 1598 | break; |
f9bb2da1 JS |
1599 | } |
1600 | } | |
1601 | } | |
1602 | ||
acd6859b | 1603 | |
f9bb2da1 | 1604 | /* Should we change the Guard Tag */ |
acd6859b JS |
1605 | if (new_guard) { |
1606 | if (phba->lpfc_injerr_wgrd_cnt) { | |
1607 | switch (op) { | |
1608 | case SCSI_PROT_WRITE_PASS: | |
9a6b09c0 | 1609 | rc = BG_ERR_CHECK; |
acd6859b | 1610 | /* Drop thru */ |
9a6b09c0 JS |
1611 | |
1612 | case SCSI_PROT_WRITE_INSERT: | |
acd6859b | 1613 | /* |
9a6b09c0 JS |
1614 | * For WRITE_INSERT, force the |
1615 | * error to be sent on the wire. It should be | |
1616 | * detected by the Target. | |
acd6859b JS |
1617 | */ |
1618 | phba->lpfc_injerr_wgrd_cnt--; | |
4ac9b226 JS |
1619 | if (phba->lpfc_injerr_wgrd_cnt == 0) { |
1620 | phba->lpfc_injerr_nportid = 0; | |
1621 | phba->lpfc_injerr_lba = | |
1622 | LPFC_INJERR_LBA_OFF; | |
1623 | memset(&phba->lpfc_injerr_wwpn, | |
1624 | 0, sizeof(struct lpfc_name)); | |
1625 | } | |
f9bb2da1 | 1626 | |
9a6b09c0 | 1627 | rc |= BG_ERR_TGT | BG_ERR_SWAP; |
acd6859b | 1628 | /* Signals the caller to swap CRC->CSUM */ |
f9bb2da1 | 1629 | |
acd6859b | 1630 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
9a6b09c0 | 1631 | "0817 BLKGRD: Injecting guard error: " |
acd6859b JS |
1632 | "write lba x%lx\n", (unsigned long)lba); |
1633 | break; | |
9a6b09c0 | 1634 | case SCSI_PROT_WRITE_STRIP: |
acd6859b | 1635 | /* |
9a6b09c0 JS |
1636 | * For WRITE_STRIP and WRITE_PASS, |
1637 | * force the error on data | |
1638 | * being copied from SLI-Host to SLI-Port. | |
acd6859b JS |
1639 | */ |
1640 | phba->lpfc_injerr_wgrd_cnt--; | |
4ac9b226 JS |
1641 | if (phba->lpfc_injerr_wgrd_cnt == 0) { |
1642 | phba->lpfc_injerr_nportid = 0; | |
1643 | phba->lpfc_injerr_lba = | |
1644 | LPFC_INJERR_LBA_OFF; | |
1645 | memset(&phba->lpfc_injerr_wwpn, | |
1646 | 0, sizeof(struct lpfc_name)); | |
1647 | } | |
f9bb2da1 | 1648 | |
9a6b09c0 | 1649 | rc = BG_ERR_INIT | BG_ERR_SWAP; |
acd6859b JS |
1650 | /* Signals the caller to swap CRC->CSUM */ |
1651 | ||
1652 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
9a6b09c0 | 1653 | "0816 BLKGRD: Injecting guard error: " |
acd6859b JS |
1654 | "write lba x%lx\n", (unsigned long)lba); |
1655 | break; | |
1656 | } | |
1657 | } | |
1658 | if (phba->lpfc_injerr_rgrd_cnt) { | |
1659 | switch (op) { | |
1660 | case SCSI_PROT_READ_INSERT: | |
acd6859b JS |
1661 | case SCSI_PROT_READ_STRIP: |
1662 | case SCSI_PROT_READ_PASS: | |
1663 | /* | |
1664 | * For READ_STRIP and READ_PASS, force the | |
1665 | * error on data being read off the wire. It | |
1666 | * should force an IO error to the driver. | |
1667 | */ | |
acd6859b | 1668 | phba->lpfc_injerr_rgrd_cnt--; |
4ac9b226 JS |
1669 | if (phba->lpfc_injerr_rgrd_cnt == 0) { |
1670 | phba->lpfc_injerr_nportid = 0; | |
1671 | phba->lpfc_injerr_lba = | |
1672 | LPFC_INJERR_LBA_OFF; | |
1673 | memset(&phba->lpfc_injerr_wwpn, | |
1674 | 0, sizeof(struct lpfc_name)); | |
1675 | } | |
acd6859b | 1676 | |
9a6b09c0 | 1677 | rc = BG_ERR_INIT | BG_ERR_SWAP; |
acd6859b JS |
1678 | /* Signals the caller to swap CRC->CSUM */ |
1679 | ||
1680 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
1681 | "0818 BLKGRD: Injecting guard error: " | |
1682 | "read lba x%lx\n", (unsigned long)lba); | |
1683 | } | |
f9bb2da1 JS |
1684 | } |
1685 | } | |
acd6859b | 1686 | |
f9bb2da1 JS |
1687 | return rc; |
1688 | } | |
1689 | #endif | |
1690 | ||
acd6859b JS |
1691 | /** |
1692 | * lpfc_sc_to_bg_opcodes - Determine the BlockGuard opcodes to be used with | |
1693 | * the specified SCSI command. | |
1694 | * @phba: The Hba for which this call is being executed. | |
6c8eea54 JS |
1695 | * @sc: The SCSI command to examine |
1696 | * @txopt: (out) BlockGuard operation for transmitted data | |
1697 | * @rxopt: (out) BlockGuard operation for received data | |
1698 | * | |
1699 | * Returns: zero on success; non-zero if tx and/or rx op cannot be determined | |
1700 | * | |
acd6859b | 1701 | **/ |
e2a0a9d6 | 1702 | static int |
6c8eea54 JS |
1703 | lpfc_sc_to_bg_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc, |
1704 | uint8_t *txop, uint8_t *rxop) | |
e2a0a9d6 | 1705 | { |
6c8eea54 | 1706 | uint8_t ret = 0; |
e2a0a9d6 | 1707 | |
9c6aa9d7 | 1708 | if (lpfc_cmd_guard_csum(sc)) { |
e2a0a9d6 JS |
1709 | switch (scsi_get_prot_op(sc)) { |
1710 | case SCSI_PROT_READ_INSERT: | |
1711 | case SCSI_PROT_WRITE_STRIP: | |
6c8eea54 | 1712 | *rxop = BG_OP_IN_NODIF_OUT_CSUM; |
4ac9b226 | 1713 | *txop = BG_OP_IN_CSUM_OUT_NODIF; |
e2a0a9d6 JS |
1714 | break; |
1715 | ||
1716 | case SCSI_PROT_READ_STRIP: | |
1717 | case SCSI_PROT_WRITE_INSERT: | |
6c8eea54 | 1718 | *rxop = BG_OP_IN_CRC_OUT_NODIF; |
4ac9b226 | 1719 | *txop = BG_OP_IN_NODIF_OUT_CRC; |
e2a0a9d6 JS |
1720 | break; |
1721 | ||
c6af4042 MP |
1722 | case SCSI_PROT_READ_PASS: |
1723 | case SCSI_PROT_WRITE_PASS: | |
6c8eea54 | 1724 | *rxop = BG_OP_IN_CRC_OUT_CSUM; |
4ac9b226 | 1725 | *txop = BG_OP_IN_CSUM_OUT_CRC; |
e2a0a9d6 JS |
1726 | break; |
1727 | ||
e2a0a9d6 JS |
1728 | case SCSI_PROT_NORMAL: |
1729 | default: | |
6a9c52cf | 1730 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
7c56b9fd JS |
1731 | "9063 BLKGRD: Bad op/guard:%d/IP combination\n", |
1732 | scsi_get_prot_op(sc)); | |
6c8eea54 | 1733 | ret = 1; |
e2a0a9d6 JS |
1734 | break; |
1735 | ||
1736 | } | |
7c56b9fd | 1737 | } else { |
e2a0a9d6 JS |
1738 | switch (scsi_get_prot_op(sc)) { |
1739 | case SCSI_PROT_READ_STRIP: | |
1740 | case SCSI_PROT_WRITE_INSERT: | |
6c8eea54 | 1741 | *rxop = BG_OP_IN_CRC_OUT_NODIF; |
4ac9b226 | 1742 | *txop = BG_OP_IN_NODIF_OUT_CRC; |
e2a0a9d6 JS |
1743 | break; |
1744 | ||
1745 | case SCSI_PROT_READ_PASS: | |
1746 | case SCSI_PROT_WRITE_PASS: | |
6c8eea54 | 1747 | *rxop = BG_OP_IN_CRC_OUT_CRC; |
4ac9b226 | 1748 | *txop = BG_OP_IN_CRC_OUT_CRC; |
e2a0a9d6 JS |
1749 | break; |
1750 | ||
e2a0a9d6 JS |
1751 | case SCSI_PROT_READ_INSERT: |
1752 | case SCSI_PROT_WRITE_STRIP: | |
7c56b9fd | 1753 | *rxop = BG_OP_IN_NODIF_OUT_CRC; |
4ac9b226 | 1754 | *txop = BG_OP_IN_CRC_OUT_NODIF; |
7c56b9fd JS |
1755 | break; |
1756 | ||
e2a0a9d6 JS |
1757 | case SCSI_PROT_NORMAL: |
1758 | default: | |
6a9c52cf | 1759 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
7c56b9fd JS |
1760 | "9075 BLKGRD: Bad op/guard:%d/CRC combination\n", |
1761 | scsi_get_prot_op(sc)); | |
6c8eea54 | 1762 | ret = 1; |
e2a0a9d6 JS |
1763 | break; |
1764 | } | |
e2a0a9d6 JS |
1765 | } |
1766 | ||
6c8eea54 | 1767 | return ret; |
e2a0a9d6 JS |
1768 | } |
1769 | ||
acd6859b JS |
1770 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
1771 | /** | |
1772 | * lpfc_bg_err_opcodes - reDetermine the BlockGuard opcodes to be used with | |
1773 | * the specified SCSI command in order to force a guard tag error. | |
1774 | * @phba: The Hba for which this call is being executed. | |
1775 | * @sc: The SCSI command to examine | |
1776 | * @txopt: (out) BlockGuard operation for transmitted data | |
1777 | * @rxopt: (out) BlockGuard operation for received data | |
1778 | * | |
1779 | * Returns: zero on success; non-zero if tx and/or rx op cannot be determined | |
1780 | * | |
1781 | **/ | |
1782 | static int | |
1783 | lpfc_bg_err_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
1784 | uint8_t *txop, uint8_t *rxop) | |
1785 | { | |
acd6859b JS |
1786 | uint8_t ret = 0; |
1787 | ||
9c6aa9d7 | 1788 | if (lpfc_cmd_guard_csum(sc)) { |
acd6859b JS |
1789 | switch (scsi_get_prot_op(sc)) { |
1790 | case SCSI_PROT_READ_INSERT: | |
1791 | case SCSI_PROT_WRITE_STRIP: | |
acd6859b | 1792 | *rxop = BG_OP_IN_NODIF_OUT_CRC; |
4ac9b226 | 1793 | *txop = BG_OP_IN_CRC_OUT_NODIF; |
acd6859b JS |
1794 | break; |
1795 | ||
1796 | case SCSI_PROT_READ_STRIP: | |
1797 | case SCSI_PROT_WRITE_INSERT: | |
acd6859b | 1798 | *rxop = BG_OP_IN_CSUM_OUT_NODIF; |
4ac9b226 | 1799 | *txop = BG_OP_IN_NODIF_OUT_CSUM; |
acd6859b JS |
1800 | break; |
1801 | ||
1802 | case SCSI_PROT_READ_PASS: | |
1803 | case SCSI_PROT_WRITE_PASS: | |
4ac9b226 | 1804 | *rxop = BG_OP_IN_CSUM_OUT_CRC; |
9a6b09c0 | 1805 | *txop = BG_OP_IN_CRC_OUT_CSUM; |
acd6859b JS |
1806 | break; |
1807 | ||
1808 | case SCSI_PROT_NORMAL: | |
1809 | default: | |
1810 | break; | |
1811 | ||
1812 | } | |
1813 | } else { | |
1814 | switch (scsi_get_prot_op(sc)) { | |
1815 | case SCSI_PROT_READ_STRIP: | |
1816 | case SCSI_PROT_WRITE_INSERT: | |
acd6859b | 1817 | *rxop = BG_OP_IN_CSUM_OUT_NODIF; |
4ac9b226 | 1818 | *txop = BG_OP_IN_NODIF_OUT_CSUM; |
acd6859b JS |
1819 | break; |
1820 | ||
1821 | case SCSI_PROT_READ_PASS: | |
1822 | case SCSI_PROT_WRITE_PASS: | |
4ac9b226 | 1823 | *rxop = BG_OP_IN_CSUM_OUT_CSUM; |
9a6b09c0 | 1824 | *txop = BG_OP_IN_CSUM_OUT_CSUM; |
acd6859b JS |
1825 | break; |
1826 | ||
1827 | case SCSI_PROT_READ_INSERT: | |
1828 | case SCSI_PROT_WRITE_STRIP: | |
acd6859b | 1829 | *rxop = BG_OP_IN_NODIF_OUT_CSUM; |
4ac9b226 | 1830 | *txop = BG_OP_IN_CSUM_OUT_NODIF; |
acd6859b JS |
1831 | break; |
1832 | ||
1833 | case SCSI_PROT_NORMAL: | |
1834 | default: | |
1835 | break; | |
1836 | } | |
1837 | } | |
1838 | ||
1839 | return ret; | |
1840 | } | |
1841 | #endif | |
1842 | ||
1843 | /** | |
1844 | * lpfc_bg_setup_bpl - Setup BlockGuard BPL with no protection data | |
1845 | * @phba: The Hba for which this call is being executed. | |
1846 | * @sc: pointer to scsi command we're working on | |
1847 | * @bpl: pointer to buffer list for protection groups | |
1848 | * @datacnt: number of segments of data that have been dma mapped | |
1849 | * | |
1850 | * This function sets up BPL buffer list for protection groups of | |
e2a0a9d6 JS |
1851 | * type LPFC_PG_TYPE_NO_DIF |
1852 | * | |
1853 | * This is usually used when the HBA is instructed to generate | |
1854 | * DIFs and insert them into data stream (or strip DIF from | |
1855 | * incoming data stream) | |
1856 | * | |
1857 | * The buffer list consists of just one protection group described | |
1858 | * below: | |
1859 | * +-------------------------+ | |
6c8eea54 JS |
1860 | * start of prot group --> | PDE_5 | |
1861 | * +-------------------------+ | |
1862 | * | PDE_6 | | |
e2a0a9d6 JS |
1863 | * +-------------------------+ |
1864 | * | Data BDE | | |
1865 | * +-------------------------+ | |
1866 | * |more Data BDE's ... (opt)| | |
1867 | * +-------------------------+ | |
1868 | * | |
e2a0a9d6 JS |
1869 | * |
1870 | * Note: Data s/g buffers have been dma mapped | |
acd6859b JS |
1871 | * |
1872 | * Returns the number of BDEs added to the BPL. | |
1873 | **/ | |
e2a0a9d6 JS |
1874 | static int |
1875 | lpfc_bg_setup_bpl(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
1876 | struct ulp_bde64 *bpl, int datasegcnt) | |
1877 | { | |
1878 | struct scatterlist *sgde = NULL; /* s/g data entry */ | |
6c8eea54 JS |
1879 | struct lpfc_pde5 *pde5 = NULL; |
1880 | struct lpfc_pde6 *pde6 = NULL; | |
e2a0a9d6 | 1881 | dma_addr_t physaddr; |
6c8eea54 | 1882 | int i = 0, num_bde = 0, status; |
e2a0a9d6 | 1883 | int datadir = sc->sc_data_direction; |
0829a19a | 1884 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 1885 | uint32_t rc; |
0829a19a | 1886 | #endif |
acd6859b | 1887 | uint32_t checking = 1; |
e2a0a9d6 | 1888 | uint32_t reftag; |
6c8eea54 | 1889 | uint8_t txop, rxop; |
e2a0a9d6 | 1890 | |
6c8eea54 JS |
1891 | status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop); |
1892 | if (status) | |
e2a0a9d6 JS |
1893 | goto out; |
1894 | ||
6c8eea54 | 1895 | /* extract some info from the scsi command for pde*/ |
acd6859b | 1896 | reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */ |
e2a0a9d6 | 1897 | |
f9bb2da1 | 1898 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
4ac9b226 | 1899 | rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); |
acd6859b | 1900 | if (rc) { |
9a6b09c0 | 1901 | if (rc & BG_ERR_SWAP) |
acd6859b | 1902 | lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); |
9a6b09c0 | 1903 | if (rc & BG_ERR_CHECK) |
acd6859b JS |
1904 | checking = 0; |
1905 | } | |
f9bb2da1 JS |
1906 | #endif |
1907 | ||
6c8eea54 JS |
1908 | /* setup PDE5 with what we have */ |
1909 | pde5 = (struct lpfc_pde5 *) bpl; | |
1910 | memset(pde5, 0, sizeof(struct lpfc_pde5)); | |
1911 | bf_set(pde5_type, pde5, LPFC_PDE5_DESCRIPTOR); | |
6c8eea54 | 1912 | |
bc73905a | 1913 | /* Endianness conversion if necessary for PDE5 */ |
589a52d6 | 1914 | pde5->word0 = cpu_to_le32(pde5->word0); |
7c56b9fd | 1915 | pde5->reftag = cpu_to_le32(reftag); |
589a52d6 | 1916 | |
6c8eea54 JS |
1917 | /* advance bpl and increment bde count */ |
1918 | num_bde++; | |
1919 | bpl++; | |
1920 | pde6 = (struct lpfc_pde6 *) bpl; | |
1921 | ||
1922 | /* setup PDE6 with the rest of the info */ | |
1923 | memset(pde6, 0, sizeof(struct lpfc_pde6)); | |
1924 | bf_set(pde6_type, pde6, LPFC_PDE6_DESCRIPTOR); | |
1925 | bf_set(pde6_optx, pde6, txop); | |
1926 | bf_set(pde6_oprx, pde6, rxop); | |
a6887e28 JS |
1927 | |
1928 | /* | |
1929 | * We only need to check the data on READs, for WRITEs | |
1930 | * protection data is automatically generated, not checked. | |
1931 | */ | |
6c8eea54 | 1932 | if (datadir == DMA_FROM_DEVICE) { |
9c6aa9d7 | 1933 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_GUARD)) |
a6887e28 JS |
1934 | bf_set(pde6_ce, pde6, checking); |
1935 | else | |
1936 | bf_set(pde6_ce, pde6, 0); | |
1937 | ||
9c6aa9d7 | 1938 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_REF)) |
a6887e28 JS |
1939 | bf_set(pde6_re, pde6, checking); |
1940 | else | |
1941 | bf_set(pde6_re, pde6, 0); | |
6c8eea54 JS |
1942 | } |
1943 | bf_set(pde6_ai, pde6, 1); | |
7c56b9fd JS |
1944 | bf_set(pde6_ae, pde6, 0); |
1945 | bf_set(pde6_apptagval, pde6, 0); | |
e2a0a9d6 | 1946 | |
bc73905a | 1947 | /* Endianness conversion if necessary for PDE6 */ |
589a52d6 JS |
1948 | pde6->word0 = cpu_to_le32(pde6->word0); |
1949 | pde6->word1 = cpu_to_le32(pde6->word1); | |
1950 | pde6->word2 = cpu_to_le32(pde6->word2); | |
1951 | ||
6c8eea54 | 1952 | /* advance bpl and increment bde count */ |
e2a0a9d6 JS |
1953 | num_bde++; |
1954 | bpl++; | |
1955 | ||
1956 | /* assumption: caller has already run dma_map_sg on command data */ | |
1957 | scsi_for_each_sg(sc, sgde, datasegcnt, i) { | |
1958 | physaddr = sg_dma_address(sgde); | |
1959 | bpl->addrLow = le32_to_cpu(putPaddrLow(physaddr)); | |
1960 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(physaddr)); | |
1961 | bpl->tus.f.bdeSize = sg_dma_len(sgde); | |
1962 | if (datadir == DMA_TO_DEVICE) | |
1963 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
1964 | else | |
1965 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
1966 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
1967 | bpl++; | |
1968 | num_bde++; | |
1969 | } | |
1970 | ||
1971 | out: | |
1972 | return num_bde; | |
1973 | } | |
1974 | ||
acd6859b JS |
1975 | /** |
1976 | * lpfc_bg_setup_bpl_prot - Setup BlockGuard BPL with protection data | |
1977 | * @phba: The Hba for which this call is being executed. | |
1978 | * @sc: pointer to scsi command we're working on | |
1979 | * @bpl: pointer to buffer list for protection groups | |
1980 | * @datacnt: number of segments of data that have been dma mapped | |
1981 | * @protcnt: number of segment of protection data that have been dma mapped | |
1982 | * | |
1983 | * This function sets up BPL buffer list for protection groups of | |
1984 | * type LPFC_PG_TYPE_DIF | |
e2a0a9d6 JS |
1985 | * |
1986 | * This is usually used when DIFs are in their own buffers, | |
1987 | * separate from the data. The HBA can then by instructed | |
1988 | * to place the DIFs in the outgoing stream. For read operations, | |
1989 | * The HBA could extract the DIFs and place it in DIF buffers. | |
1990 | * | |
1991 | * The buffer list for this type consists of one or more of the | |
1992 | * protection groups described below: | |
1993 | * +-------------------------+ | |
6c8eea54 | 1994 | * start of first prot group --> | PDE_5 | |
e2a0a9d6 | 1995 | * +-------------------------+ |
6c8eea54 JS |
1996 | * | PDE_6 | |
1997 | * +-------------------------+ | |
1998 | * | PDE_7 (Prot BDE) | | |
e2a0a9d6 JS |
1999 | * +-------------------------+ |
2000 | * | Data BDE | | |
2001 | * +-------------------------+ | |
2002 | * |more Data BDE's ... (opt)| | |
2003 | * +-------------------------+ | |
6c8eea54 | 2004 | * start of new prot group --> | PDE_5 | |
e2a0a9d6 JS |
2005 | * +-------------------------+ |
2006 | * | ... | | |
2007 | * +-------------------------+ | |
2008 | * | |
e2a0a9d6 JS |
2009 | * Note: It is assumed that both data and protection s/g buffers have been |
2010 | * mapped for DMA | |
acd6859b JS |
2011 | * |
2012 | * Returns the number of BDEs added to the BPL. | |
2013 | **/ | |
e2a0a9d6 JS |
2014 | static int |
2015 | lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
2016 | struct ulp_bde64 *bpl, int datacnt, int protcnt) | |
2017 | { | |
2018 | struct scatterlist *sgde = NULL; /* s/g data entry */ | |
2019 | struct scatterlist *sgpe = NULL; /* s/g prot entry */ | |
6c8eea54 JS |
2020 | struct lpfc_pde5 *pde5 = NULL; |
2021 | struct lpfc_pde6 *pde6 = NULL; | |
7f86059a | 2022 | struct lpfc_pde7 *pde7 = NULL; |
e2a0a9d6 JS |
2023 | dma_addr_t dataphysaddr, protphysaddr; |
2024 | unsigned short curr_data = 0, curr_prot = 0; | |
7f86059a JS |
2025 | unsigned int split_offset; |
2026 | unsigned int protgroup_len, protgroup_offset = 0, protgroup_remainder; | |
e2a0a9d6 JS |
2027 | unsigned int protgrp_blks, protgrp_bytes; |
2028 | unsigned int remainder, subtotal; | |
6c8eea54 | 2029 | int status; |
e2a0a9d6 JS |
2030 | int datadir = sc->sc_data_direction; |
2031 | unsigned char pgdone = 0, alldone = 0; | |
2032 | unsigned blksize; | |
0829a19a | 2033 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 2034 | uint32_t rc; |
0829a19a | 2035 | #endif |
acd6859b | 2036 | uint32_t checking = 1; |
e2a0a9d6 | 2037 | uint32_t reftag; |
6c8eea54 | 2038 | uint8_t txop, rxop; |
e2a0a9d6 JS |
2039 | int num_bde = 0; |
2040 | ||
2041 | sgpe = scsi_prot_sglist(sc); | |
2042 | sgde = scsi_sglist(sc); | |
2043 | ||
2044 | if (!sgpe || !sgde) { | |
2045 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, | |
acd6859b JS |
2046 | "9020 Invalid s/g entry: data=0x%p prot=0x%p\n", |
2047 | sgpe, sgde); | |
2048 | return 0; | |
2049 | } | |
2050 | ||
2051 | status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop); | |
2052 | if (status) | |
2053 | goto out; | |
2054 | ||
2055 | /* extract some info from the scsi command */ | |
2056 | blksize = lpfc_cmd_blksize(sc); | |
2057 | reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */ | |
2058 | ||
2059 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS | |
4ac9b226 | 2060 | rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); |
acd6859b | 2061 | if (rc) { |
9a6b09c0 | 2062 | if (rc & BG_ERR_SWAP) |
acd6859b | 2063 | lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); |
9a6b09c0 | 2064 | if (rc & BG_ERR_CHECK) |
acd6859b JS |
2065 | checking = 0; |
2066 | } | |
2067 | #endif | |
2068 | ||
2069 | split_offset = 0; | |
2070 | do { | |
96f7077f JS |
2071 | /* Check to see if we ran out of space */ |
2072 | if (num_bde >= (phba->cfg_total_seg_cnt - 2)) | |
2073 | return num_bde + 3; | |
2074 | ||
acd6859b JS |
2075 | /* setup PDE5 with what we have */ |
2076 | pde5 = (struct lpfc_pde5 *) bpl; | |
2077 | memset(pde5, 0, sizeof(struct lpfc_pde5)); | |
2078 | bf_set(pde5_type, pde5, LPFC_PDE5_DESCRIPTOR); | |
2079 | ||
2080 | /* Endianness conversion if necessary for PDE5 */ | |
2081 | pde5->word0 = cpu_to_le32(pde5->word0); | |
2082 | pde5->reftag = cpu_to_le32(reftag); | |
2083 | ||
2084 | /* advance bpl and increment bde count */ | |
2085 | num_bde++; | |
2086 | bpl++; | |
2087 | pde6 = (struct lpfc_pde6 *) bpl; | |
2088 | ||
2089 | /* setup PDE6 with the rest of the info */ | |
2090 | memset(pde6, 0, sizeof(struct lpfc_pde6)); | |
2091 | bf_set(pde6_type, pde6, LPFC_PDE6_DESCRIPTOR); | |
2092 | bf_set(pde6_optx, pde6, txop); | |
2093 | bf_set(pde6_oprx, pde6, rxop); | |
a6887e28 | 2094 | |
9c6aa9d7 | 2095 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_GUARD)) |
a6887e28 JS |
2096 | bf_set(pde6_ce, pde6, checking); |
2097 | else | |
2098 | bf_set(pde6_ce, pde6, 0); | |
2099 | ||
9c6aa9d7 | 2100 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_REF)) |
a6887e28 JS |
2101 | bf_set(pde6_re, pde6, checking); |
2102 | else | |
2103 | bf_set(pde6_re, pde6, 0); | |
2104 | ||
acd6859b JS |
2105 | bf_set(pde6_ai, pde6, 1); |
2106 | bf_set(pde6_ae, pde6, 0); | |
2107 | bf_set(pde6_apptagval, pde6, 0); | |
2108 | ||
2109 | /* Endianness conversion if necessary for PDE6 */ | |
2110 | pde6->word0 = cpu_to_le32(pde6->word0); | |
2111 | pde6->word1 = cpu_to_le32(pde6->word1); | |
2112 | pde6->word2 = cpu_to_le32(pde6->word2); | |
2113 | ||
2114 | /* advance bpl and increment bde count */ | |
2115 | num_bde++; | |
2116 | bpl++; | |
2117 | ||
2118 | /* setup the first BDE that points to protection buffer */ | |
2119 | protphysaddr = sg_dma_address(sgpe) + protgroup_offset; | |
2120 | protgroup_len = sg_dma_len(sgpe) - protgroup_offset; | |
2121 | ||
2122 | /* must be integer multiple of the DIF block length */ | |
2123 | BUG_ON(protgroup_len % 8); | |
2124 | ||
2125 | pde7 = (struct lpfc_pde7 *) bpl; | |
2126 | memset(pde7, 0, sizeof(struct lpfc_pde7)); | |
2127 | bf_set(pde7_type, pde7, LPFC_PDE7_DESCRIPTOR); | |
2128 | ||
2129 | pde7->addrHigh = le32_to_cpu(putPaddrHigh(protphysaddr)); | |
2130 | pde7->addrLow = le32_to_cpu(putPaddrLow(protphysaddr)); | |
2131 | ||
2132 | protgrp_blks = protgroup_len / 8; | |
2133 | protgrp_bytes = protgrp_blks * blksize; | |
2134 | ||
2135 | /* check if this pde is crossing the 4K boundary; if so split */ | |
2136 | if ((pde7->addrLow & 0xfff) + protgroup_len > 0x1000) { | |
2137 | protgroup_remainder = 0x1000 - (pde7->addrLow & 0xfff); | |
2138 | protgroup_offset += protgroup_remainder; | |
2139 | protgrp_blks = protgroup_remainder / 8; | |
2140 | protgrp_bytes = protgrp_blks * blksize; | |
2141 | } else { | |
2142 | protgroup_offset = 0; | |
2143 | curr_prot++; | |
2144 | } | |
2145 | ||
2146 | num_bde++; | |
2147 | ||
2148 | /* setup BDE's for data blocks associated with DIF data */ | |
2149 | pgdone = 0; | |
2150 | subtotal = 0; /* total bytes processed for current prot grp */ | |
2151 | while (!pgdone) { | |
96f7077f JS |
2152 | /* Check to see if we ran out of space */ |
2153 | if (num_bde >= phba->cfg_total_seg_cnt) | |
2154 | return num_bde + 1; | |
2155 | ||
acd6859b JS |
2156 | if (!sgde) { |
2157 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
2158 | "9065 BLKGRD:%s Invalid data segment\n", | |
2159 | __func__); | |
2160 | return 0; | |
2161 | } | |
2162 | bpl++; | |
2163 | dataphysaddr = sg_dma_address(sgde) + split_offset; | |
2164 | bpl->addrLow = le32_to_cpu(putPaddrLow(dataphysaddr)); | |
2165 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(dataphysaddr)); | |
2166 | ||
2167 | remainder = sg_dma_len(sgde) - split_offset; | |
2168 | ||
2169 | if ((subtotal + remainder) <= protgrp_bytes) { | |
2170 | /* we can use this whole buffer */ | |
2171 | bpl->tus.f.bdeSize = remainder; | |
2172 | split_offset = 0; | |
2173 | ||
2174 | if ((subtotal + remainder) == protgrp_bytes) | |
2175 | pgdone = 1; | |
2176 | } else { | |
2177 | /* must split this buffer with next prot grp */ | |
2178 | bpl->tus.f.bdeSize = protgrp_bytes - subtotal; | |
2179 | split_offset += bpl->tus.f.bdeSize; | |
2180 | } | |
2181 | ||
2182 | subtotal += bpl->tus.f.bdeSize; | |
2183 | ||
2184 | if (datadir == DMA_TO_DEVICE) | |
2185 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
2186 | else | |
2187 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
2188 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
2189 | ||
2190 | num_bde++; | |
2191 | curr_data++; | |
2192 | ||
2193 | if (split_offset) | |
2194 | break; | |
2195 | ||
2196 | /* Move to the next s/g segment if possible */ | |
2197 | sgde = sg_next(sgde); | |
2198 | ||
2199 | } | |
2200 | ||
2201 | if (protgroup_offset) { | |
2202 | /* update the reference tag */ | |
2203 | reftag += protgrp_blks; | |
2204 | bpl++; | |
2205 | continue; | |
2206 | } | |
2207 | ||
2208 | /* are we done ? */ | |
2209 | if (curr_prot == protcnt) { | |
2210 | alldone = 1; | |
2211 | } else if (curr_prot < protcnt) { | |
2212 | /* advance to next prot buffer */ | |
2213 | sgpe = sg_next(sgpe); | |
2214 | bpl++; | |
2215 | ||
2216 | /* update the reference tag */ | |
2217 | reftag += protgrp_blks; | |
2218 | } else { | |
2219 | /* if we're here, we have a bug */ | |
2220 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
2221 | "9054 BLKGRD: bug in %s\n", __func__); | |
2222 | } | |
2223 | ||
2224 | } while (!alldone); | |
2225 | out: | |
2226 | ||
2227 | return num_bde; | |
2228 | } | |
2229 | ||
2230 | /** | |
2231 | * lpfc_bg_setup_sgl - Setup BlockGuard SGL with no protection data | |
2232 | * @phba: The Hba for which this call is being executed. | |
2233 | * @sc: pointer to scsi command we're working on | |
2234 | * @sgl: pointer to buffer list for protection groups | |
2235 | * @datacnt: number of segments of data that have been dma mapped | |
2236 | * | |
2237 | * This function sets up SGL buffer list for protection groups of | |
2238 | * type LPFC_PG_TYPE_NO_DIF | |
2239 | * | |
2240 | * This is usually used when the HBA is instructed to generate | |
2241 | * DIFs and insert them into data stream (or strip DIF from | |
2242 | * incoming data stream) | |
2243 | * | |
2244 | * The buffer list consists of just one protection group described | |
2245 | * below: | |
2246 | * +-------------------------+ | |
2247 | * start of prot group --> | DI_SEED | | |
2248 | * +-------------------------+ | |
2249 | * | Data SGE | | |
2250 | * +-------------------------+ | |
2251 | * |more Data SGE's ... (opt)| | |
2252 | * +-------------------------+ | |
2253 | * | |
2254 | * | |
2255 | * Note: Data s/g buffers have been dma mapped | |
2256 | * | |
2257 | * Returns the number of SGEs added to the SGL. | |
2258 | **/ | |
2259 | static int | |
2260 | lpfc_bg_setup_sgl(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
2261 | struct sli4_sge *sgl, int datasegcnt) | |
2262 | { | |
2263 | struct scatterlist *sgde = NULL; /* s/g data entry */ | |
2264 | struct sli4_sge_diseed *diseed = NULL; | |
2265 | dma_addr_t physaddr; | |
2266 | int i = 0, num_sge = 0, status; | |
acd6859b | 2267 | uint32_t reftag; |
acd6859b | 2268 | uint8_t txop, rxop; |
0829a19a | 2269 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 2270 | uint32_t rc; |
0829a19a | 2271 | #endif |
acd6859b JS |
2272 | uint32_t checking = 1; |
2273 | uint32_t dma_len; | |
2274 | uint32_t dma_offset = 0; | |
2275 | ||
2276 | status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop); | |
2277 | if (status) | |
2278 | goto out; | |
2279 | ||
2280 | /* extract some info from the scsi command for pde*/ | |
acd6859b JS |
2281 | reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */ |
2282 | ||
2283 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS | |
4ac9b226 | 2284 | rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); |
acd6859b | 2285 | if (rc) { |
9a6b09c0 | 2286 | if (rc & BG_ERR_SWAP) |
acd6859b | 2287 | lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); |
9a6b09c0 | 2288 | if (rc & BG_ERR_CHECK) |
acd6859b JS |
2289 | checking = 0; |
2290 | } | |
2291 | #endif | |
2292 | ||
2293 | /* setup DISEED with what we have */ | |
2294 | diseed = (struct sli4_sge_diseed *) sgl; | |
2295 | memset(diseed, 0, sizeof(struct sli4_sge_diseed)); | |
2296 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DISEED); | |
2297 | ||
2298 | /* Endianness conversion if necessary */ | |
2299 | diseed->ref_tag = cpu_to_le32(reftag); | |
2300 | diseed->ref_tag_tran = diseed->ref_tag; | |
2301 | ||
a6887e28 JS |
2302 | /* |
2303 | * We only need to check the data on READs, for WRITEs | |
2304 | * protection data is automatically generated, not checked. | |
2305 | */ | |
2306 | if (sc->sc_data_direction == DMA_FROM_DEVICE) { | |
9c6aa9d7 | 2307 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_GUARD)) |
a6887e28 JS |
2308 | bf_set(lpfc_sli4_sge_dif_ce, diseed, checking); |
2309 | else | |
2310 | bf_set(lpfc_sli4_sge_dif_ce, diseed, 0); | |
2311 | ||
9c6aa9d7 | 2312 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_REF)) |
a6887e28 JS |
2313 | bf_set(lpfc_sli4_sge_dif_re, diseed, checking); |
2314 | else | |
2315 | bf_set(lpfc_sli4_sge_dif_re, diseed, 0); | |
2316 | } | |
2317 | ||
acd6859b JS |
2318 | /* setup DISEED with the rest of the info */ |
2319 | bf_set(lpfc_sli4_sge_dif_optx, diseed, txop); | |
2320 | bf_set(lpfc_sli4_sge_dif_oprx, diseed, rxop); | |
a6887e28 | 2321 | |
acd6859b JS |
2322 | bf_set(lpfc_sli4_sge_dif_ai, diseed, 1); |
2323 | bf_set(lpfc_sli4_sge_dif_me, diseed, 0); | |
2324 | ||
2325 | /* Endianness conversion if necessary for DISEED */ | |
2326 | diseed->word2 = cpu_to_le32(diseed->word2); | |
2327 | diseed->word3 = cpu_to_le32(diseed->word3); | |
2328 | ||
2329 | /* advance bpl and increment sge count */ | |
2330 | num_sge++; | |
2331 | sgl++; | |
2332 | ||
2333 | /* assumption: caller has already run dma_map_sg on command data */ | |
2334 | scsi_for_each_sg(sc, sgde, datasegcnt, i) { | |
2335 | physaddr = sg_dma_address(sgde); | |
2336 | dma_len = sg_dma_len(sgde); | |
2337 | sgl->addr_lo = cpu_to_le32(putPaddrLow(physaddr)); | |
2338 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(physaddr)); | |
2339 | if ((i + 1) == datasegcnt) | |
2340 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
2341 | else | |
2342 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
2343 | bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); | |
2344 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA); | |
2345 | ||
2346 | sgl->sge_len = cpu_to_le32(dma_len); | |
2347 | dma_offset += dma_len; | |
2348 | ||
2349 | sgl++; | |
2350 | num_sge++; | |
2351 | } | |
2352 | ||
2353 | out: | |
2354 | return num_sge; | |
2355 | } | |
2356 | ||
2357 | /** | |
2358 | * lpfc_bg_setup_sgl_prot - Setup BlockGuard SGL with protection data | |
2359 | * @phba: The Hba for which this call is being executed. | |
2360 | * @sc: pointer to scsi command we're working on | |
2361 | * @sgl: pointer to buffer list for protection groups | |
2362 | * @datacnt: number of segments of data that have been dma mapped | |
2363 | * @protcnt: number of segment of protection data that have been dma mapped | |
2364 | * | |
2365 | * This function sets up SGL buffer list for protection groups of | |
2366 | * type LPFC_PG_TYPE_DIF | |
2367 | * | |
2368 | * This is usually used when DIFs are in their own buffers, | |
2369 | * separate from the data. The HBA can then by instructed | |
2370 | * to place the DIFs in the outgoing stream. For read operations, | |
2371 | * The HBA could extract the DIFs and place it in DIF buffers. | |
2372 | * | |
2373 | * The buffer list for this type consists of one or more of the | |
2374 | * protection groups described below: | |
2375 | * +-------------------------+ | |
2376 | * start of first prot group --> | DISEED | | |
2377 | * +-------------------------+ | |
2378 | * | DIF (Prot SGE) | | |
2379 | * +-------------------------+ | |
2380 | * | Data SGE | | |
2381 | * +-------------------------+ | |
2382 | * |more Data SGE's ... (opt)| | |
2383 | * +-------------------------+ | |
2384 | * start of new prot group --> | DISEED | | |
2385 | * +-------------------------+ | |
2386 | * | ... | | |
2387 | * +-------------------------+ | |
2388 | * | |
2389 | * Note: It is assumed that both data and protection s/g buffers have been | |
2390 | * mapped for DMA | |
2391 | * | |
2392 | * Returns the number of SGEs added to the SGL. | |
2393 | **/ | |
2394 | static int | |
2395 | lpfc_bg_setup_sgl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
2396 | struct sli4_sge *sgl, int datacnt, int protcnt) | |
2397 | { | |
2398 | struct scatterlist *sgde = NULL; /* s/g data entry */ | |
2399 | struct scatterlist *sgpe = NULL; /* s/g prot entry */ | |
2400 | struct sli4_sge_diseed *diseed = NULL; | |
2401 | dma_addr_t dataphysaddr, protphysaddr; | |
2402 | unsigned short curr_data = 0, curr_prot = 0; | |
2403 | unsigned int split_offset; | |
2404 | unsigned int protgroup_len, protgroup_offset = 0, protgroup_remainder; | |
2405 | unsigned int protgrp_blks, protgrp_bytes; | |
2406 | unsigned int remainder, subtotal; | |
2407 | int status; | |
2408 | unsigned char pgdone = 0, alldone = 0; | |
2409 | unsigned blksize; | |
2410 | uint32_t reftag; | |
2411 | uint8_t txop, rxop; | |
2412 | uint32_t dma_len; | |
0829a19a | 2413 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 2414 | uint32_t rc; |
0829a19a | 2415 | #endif |
acd6859b JS |
2416 | uint32_t checking = 1; |
2417 | uint32_t dma_offset = 0; | |
2418 | int num_sge = 0; | |
2419 | ||
2420 | sgpe = scsi_prot_sglist(sc); | |
2421 | sgde = scsi_sglist(sc); | |
2422 | ||
2423 | if (!sgpe || !sgde) { | |
2424 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, | |
2425 | "9082 Invalid s/g entry: data=0x%p prot=0x%p\n", | |
e2a0a9d6 JS |
2426 | sgpe, sgde); |
2427 | return 0; | |
2428 | } | |
2429 | ||
6c8eea54 JS |
2430 | status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop); |
2431 | if (status) | |
e2a0a9d6 JS |
2432 | goto out; |
2433 | ||
6c8eea54 | 2434 | /* extract some info from the scsi command */ |
e2a0a9d6 | 2435 | blksize = lpfc_cmd_blksize(sc); |
acd6859b | 2436 | reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */ |
e2a0a9d6 | 2437 | |
f9bb2da1 | 2438 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
4ac9b226 | 2439 | rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); |
acd6859b | 2440 | if (rc) { |
9a6b09c0 | 2441 | if (rc & BG_ERR_SWAP) |
acd6859b | 2442 | lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); |
9a6b09c0 | 2443 | if (rc & BG_ERR_CHECK) |
acd6859b JS |
2444 | checking = 0; |
2445 | } | |
f9bb2da1 JS |
2446 | #endif |
2447 | ||
e2a0a9d6 JS |
2448 | split_offset = 0; |
2449 | do { | |
96f7077f JS |
2450 | /* Check to see if we ran out of space */ |
2451 | if (num_sge >= (phba->cfg_total_seg_cnt - 2)) | |
2452 | return num_sge + 3; | |
2453 | ||
acd6859b JS |
2454 | /* setup DISEED with what we have */ |
2455 | diseed = (struct sli4_sge_diseed *) sgl; | |
2456 | memset(diseed, 0, sizeof(struct sli4_sge_diseed)); | |
2457 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DISEED); | |
2458 | ||
2459 | /* Endianness conversion if necessary */ | |
2460 | diseed->ref_tag = cpu_to_le32(reftag); | |
2461 | diseed->ref_tag_tran = diseed->ref_tag; | |
2462 | ||
9c6aa9d7 | 2463 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_GUARD)) { |
a6887e28 JS |
2464 | bf_set(lpfc_sli4_sge_dif_ce, diseed, checking); |
2465 | ||
2466 | } else { | |
2467 | bf_set(lpfc_sli4_sge_dif_ce, diseed, 0); | |
2468 | /* | |
2469 | * When in this mode, the hardware will replace | |
2470 | * the guard tag from the host with a | |
2471 | * newly generated good CRC for the wire. | |
2472 | * Switch to raw mode here to avoid this | |
2473 | * behavior. What the host sends gets put on the wire. | |
2474 | */ | |
2475 | if (txop == BG_OP_IN_CRC_OUT_CRC) { | |
2476 | txop = BG_OP_RAW_MODE; | |
2477 | rxop = BG_OP_RAW_MODE; | |
2478 | } | |
2479 | } | |
2480 | ||
2481 | ||
9c6aa9d7 | 2482 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_REF)) |
a6887e28 JS |
2483 | bf_set(lpfc_sli4_sge_dif_re, diseed, checking); |
2484 | else | |
2485 | bf_set(lpfc_sli4_sge_dif_re, diseed, 0); | |
2486 | ||
acd6859b JS |
2487 | /* setup DISEED with the rest of the info */ |
2488 | bf_set(lpfc_sli4_sge_dif_optx, diseed, txop); | |
2489 | bf_set(lpfc_sli4_sge_dif_oprx, diseed, rxop); | |
a6887e28 | 2490 | |
acd6859b JS |
2491 | bf_set(lpfc_sli4_sge_dif_ai, diseed, 1); |
2492 | bf_set(lpfc_sli4_sge_dif_me, diseed, 0); | |
2493 | ||
2494 | /* Endianness conversion if necessary for DISEED */ | |
2495 | diseed->word2 = cpu_to_le32(diseed->word2); | |
2496 | diseed->word3 = cpu_to_le32(diseed->word3); | |
2497 | ||
2498 | /* advance sgl and increment bde count */ | |
2499 | num_sge++; | |
2500 | sgl++; | |
e2a0a9d6 JS |
2501 | |
2502 | /* setup the first BDE that points to protection buffer */ | |
7f86059a JS |
2503 | protphysaddr = sg_dma_address(sgpe) + protgroup_offset; |
2504 | protgroup_len = sg_dma_len(sgpe) - protgroup_offset; | |
e2a0a9d6 | 2505 | |
e2a0a9d6 JS |
2506 | /* must be integer multiple of the DIF block length */ |
2507 | BUG_ON(protgroup_len % 8); | |
2508 | ||
acd6859b JS |
2509 | /* Now setup DIF SGE */ |
2510 | sgl->word2 = 0; | |
2511 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DIF); | |
2512 | sgl->addr_hi = le32_to_cpu(putPaddrHigh(protphysaddr)); | |
2513 | sgl->addr_lo = le32_to_cpu(putPaddrLow(protphysaddr)); | |
2514 | sgl->word2 = cpu_to_le32(sgl->word2); | |
7f86059a | 2515 | |
e2a0a9d6 JS |
2516 | protgrp_blks = protgroup_len / 8; |
2517 | protgrp_bytes = protgrp_blks * blksize; | |
2518 | ||
acd6859b JS |
2519 | /* check if DIF SGE is crossing the 4K boundary; if so split */ |
2520 | if ((sgl->addr_lo & 0xfff) + protgroup_len > 0x1000) { | |
2521 | protgroup_remainder = 0x1000 - (sgl->addr_lo & 0xfff); | |
7f86059a JS |
2522 | protgroup_offset += protgroup_remainder; |
2523 | protgrp_blks = protgroup_remainder / 8; | |
7c56b9fd | 2524 | protgrp_bytes = protgrp_blks * blksize; |
7f86059a JS |
2525 | } else { |
2526 | protgroup_offset = 0; | |
2527 | curr_prot++; | |
2528 | } | |
e2a0a9d6 | 2529 | |
acd6859b | 2530 | num_sge++; |
e2a0a9d6 | 2531 | |
acd6859b | 2532 | /* setup SGE's for data blocks associated with DIF data */ |
e2a0a9d6 JS |
2533 | pgdone = 0; |
2534 | subtotal = 0; /* total bytes processed for current prot grp */ | |
2535 | while (!pgdone) { | |
96f7077f JS |
2536 | /* Check to see if we ran out of space */ |
2537 | if (num_sge >= phba->cfg_total_seg_cnt) | |
2538 | return num_sge + 1; | |
2539 | ||
e2a0a9d6 | 2540 | if (!sgde) { |
6a9c52cf | 2541 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
acd6859b | 2542 | "9086 BLKGRD:%s Invalid data segment\n", |
e2a0a9d6 JS |
2543 | __func__); |
2544 | return 0; | |
2545 | } | |
acd6859b | 2546 | sgl++; |
e2a0a9d6 | 2547 | dataphysaddr = sg_dma_address(sgde) + split_offset; |
e2a0a9d6 JS |
2548 | |
2549 | remainder = sg_dma_len(sgde) - split_offset; | |
2550 | ||
2551 | if ((subtotal + remainder) <= protgrp_bytes) { | |
2552 | /* we can use this whole buffer */ | |
acd6859b | 2553 | dma_len = remainder; |
e2a0a9d6 JS |
2554 | split_offset = 0; |
2555 | ||
2556 | if ((subtotal + remainder) == protgrp_bytes) | |
2557 | pgdone = 1; | |
2558 | } else { | |
2559 | /* must split this buffer with next prot grp */ | |
acd6859b JS |
2560 | dma_len = protgrp_bytes - subtotal; |
2561 | split_offset += dma_len; | |
e2a0a9d6 JS |
2562 | } |
2563 | ||
acd6859b | 2564 | subtotal += dma_len; |
e2a0a9d6 | 2565 | |
acd6859b JS |
2566 | sgl->addr_lo = cpu_to_le32(putPaddrLow(dataphysaddr)); |
2567 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(dataphysaddr)); | |
2568 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
2569 | bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); | |
2570 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA); | |
e2a0a9d6 | 2571 | |
acd6859b JS |
2572 | sgl->sge_len = cpu_to_le32(dma_len); |
2573 | dma_offset += dma_len; | |
2574 | ||
2575 | num_sge++; | |
e2a0a9d6 JS |
2576 | curr_data++; |
2577 | ||
2578 | if (split_offset) | |
2579 | break; | |
2580 | ||
2581 | /* Move to the next s/g segment if possible */ | |
2582 | sgde = sg_next(sgde); | |
2583 | } | |
2584 | ||
7f86059a JS |
2585 | if (protgroup_offset) { |
2586 | /* update the reference tag */ | |
2587 | reftag += protgrp_blks; | |
acd6859b | 2588 | sgl++; |
7f86059a JS |
2589 | continue; |
2590 | } | |
2591 | ||
e2a0a9d6 JS |
2592 | /* are we done ? */ |
2593 | if (curr_prot == protcnt) { | |
acd6859b | 2594 | bf_set(lpfc_sli4_sge_last, sgl, 1); |
e2a0a9d6 JS |
2595 | alldone = 1; |
2596 | } else if (curr_prot < protcnt) { | |
2597 | /* advance to next prot buffer */ | |
2598 | sgpe = sg_next(sgpe); | |
acd6859b | 2599 | sgl++; |
e2a0a9d6 JS |
2600 | |
2601 | /* update the reference tag */ | |
2602 | reftag += protgrp_blks; | |
2603 | } else { | |
2604 | /* if we're here, we have a bug */ | |
6a9c52cf | 2605 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
acd6859b | 2606 | "9085 BLKGRD: bug in %s\n", __func__); |
e2a0a9d6 JS |
2607 | } |
2608 | ||
2609 | } while (!alldone); | |
acd6859b | 2610 | |
e2a0a9d6 JS |
2611 | out: |
2612 | ||
acd6859b | 2613 | return num_sge; |
e2a0a9d6 | 2614 | } |
7f86059a | 2615 | |
acd6859b JS |
2616 | /** |
2617 | * lpfc_prot_group_type - Get prtotection group type of SCSI command | |
2618 | * @phba: The Hba for which this call is being executed. | |
2619 | * @sc: pointer to scsi command we're working on | |
2620 | * | |
e2a0a9d6 JS |
2621 | * Given a SCSI command that supports DIF, determine composition of protection |
2622 | * groups involved in setting up buffer lists | |
2623 | * | |
acd6859b JS |
2624 | * Returns: Protection group type (with or without DIF) |
2625 | * | |
2626 | **/ | |
e2a0a9d6 JS |
2627 | static int |
2628 | lpfc_prot_group_type(struct lpfc_hba *phba, struct scsi_cmnd *sc) | |
2629 | { | |
2630 | int ret = LPFC_PG_TYPE_INVALID; | |
2631 | unsigned char op = scsi_get_prot_op(sc); | |
2632 | ||
2633 | switch (op) { | |
2634 | case SCSI_PROT_READ_STRIP: | |
2635 | case SCSI_PROT_WRITE_INSERT: | |
2636 | ret = LPFC_PG_TYPE_NO_DIF; | |
2637 | break; | |
2638 | case SCSI_PROT_READ_INSERT: | |
2639 | case SCSI_PROT_WRITE_STRIP: | |
2640 | case SCSI_PROT_READ_PASS: | |
2641 | case SCSI_PROT_WRITE_PASS: | |
e2a0a9d6 JS |
2642 | ret = LPFC_PG_TYPE_DIF_BUF; |
2643 | break; | |
2644 | default: | |
9c6aa9d7 JS |
2645 | if (phba) |
2646 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, | |
2647 | "9021 Unsupported protection op:%d\n", | |
2648 | op); | |
e2a0a9d6 JS |
2649 | break; |
2650 | } | |
e2a0a9d6 JS |
2651 | return ret; |
2652 | } | |
2653 | ||
a6887e28 JS |
2654 | /** |
2655 | * lpfc_bg_scsi_adjust_dl - Adjust SCSI data length for BlockGuard | |
2656 | * @phba: The Hba for which this call is being executed. | |
2657 | * @lpfc_cmd: The scsi buffer which is going to be adjusted. | |
2658 | * | |
2659 | * Adjust the data length to account for how much data | |
2660 | * is actually on the wire. | |
2661 | * | |
2662 | * returns the adjusted data length | |
2663 | **/ | |
2664 | static int | |
2665 | lpfc_bg_scsi_adjust_dl(struct lpfc_hba *phba, | |
2666 | struct lpfc_scsi_buf *lpfc_cmd) | |
2667 | { | |
2668 | struct scsi_cmnd *sc = lpfc_cmd->pCmd; | |
2669 | int fcpdl; | |
2670 | ||
2671 | fcpdl = scsi_bufflen(sc); | |
2672 | ||
2673 | /* Check if there is protection data on the wire */ | |
2674 | if (sc->sc_data_direction == DMA_FROM_DEVICE) { | |
9c6aa9d7 | 2675 | /* Read check for protection data */ |
a6887e28 JS |
2676 | if (scsi_get_prot_op(sc) == SCSI_PROT_READ_INSERT) |
2677 | return fcpdl; | |
2678 | ||
2679 | } else { | |
9c6aa9d7 | 2680 | /* Write check for protection data */ |
a6887e28 JS |
2681 | if (scsi_get_prot_op(sc) == SCSI_PROT_WRITE_STRIP) |
2682 | return fcpdl; | |
2683 | } | |
2684 | ||
2685 | /* | |
2686 | * If we are in DIF Type 1 mode every data block has a 8 byte | |
9c6aa9d7 JS |
2687 | * DIF (trailer) attached to it. Must ajust FCP data length |
2688 | * to account for the protection data. | |
a6887e28 | 2689 | */ |
9c6aa9d7 | 2690 | fcpdl += (fcpdl / lpfc_cmd_blksize(sc)) * 8; |
a6887e28 JS |
2691 | |
2692 | return fcpdl; | |
2693 | } | |
2694 | ||
acd6859b JS |
2695 | /** |
2696 | * lpfc_bg_scsi_prep_dma_buf_s3 - DMA mapping for scsi buffer to SLI3 IF spec | |
2697 | * @phba: The Hba for which this call is being executed. | |
2698 | * @lpfc_cmd: The scsi buffer which is going to be prep'ed. | |
2699 | * | |
e2a0a9d6 JS |
2700 | * This is the protection/DIF aware version of |
2701 | * lpfc_scsi_prep_dma_buf(). It may be a good idea to combine the | |
2702 | * two functions eventually, but for now, it's here | |
acd6859b | 2703 | **/ |
e2a0a9d6 | 2704 | static int |
acd6859b | 2705 | lpfc_bg_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, |
e2a0a9d6 JS |
2706 | struct lpfc_scsi_buf *lpfc_cmd) |
2707 | { | |
2708 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
2709 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
2710 | struct ulp_bde64 *bpl = lpfc_cmd->fcp_bpl; | |
2711 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; | |
2712 | uint32_t num_bde = 0; | |
2713 | int datasegcnt, protsegcnt, datadir = scsi_cmnd->sc_data_direction; | |
2714 | int prot_group_type = 0; | |
a6887e28 | 2715 | int fcpdl; |
e2a0a9d6 JS |
2716 | |
2717 | /* | |
2718 | * Start the lpfc command prep by bumping the bpl beyond fcp_cmnd | |
2719 | * fcp_rsp regions to the first data bde entry | |
2720 | */ | |
2721 | bpl += 2; | |
2722 | if (scsi_sg_count(scsi_cmnd)) { | |
2723 | /* | |
2724 | * The driver stores the segment count returned from pci_map_sg | |
2725 | * because this a count of dma-mappings used to map the use_sg | |
2726 | * pages. They are not guaranteed to be the same for those | |
2727 | * architectures that implement an IOMMU. | |
2728 | */ | |
2729 | datasegcnt = dma_map_sg(&phba->pcidev->dev, | |
2730 | scsi_sglist(scsi_cmnd), | |
2731 | scsi_sg_count(scsi_cmnd), datadir); | |
2732 | if (unlikely(!datasegcnt)) | |
2733 | return 1; | |
2734 | ||
2735 | lpfc_cmd->seg_cnt = datasegcnt; | |
96f7077f JS |
2736 | |
2737 | /* First check if data segment count from SCSI Layer is good */ | |
2738 | if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) | |
2739 | goto err; | |
e2a0a9d6 JS |
2740 | |
2741 | prot_group_type = lpfc_prot_group_type(phba, scsi_cmnd); | |
2742 | ||
2743 | switch (prot_group_type) { | |
2744 | case LPFC_PG_TYPE_NO_DIF: | |
96f7077f JS |
2745 | |
2746 | /* Here we need to add a PDE5 and PDE6 to the count */ | |
2747 | if ((lpfc_cmd->seg_cnt + 2) > phba->cfg_total_seg_cnt) | |
2748 | goto err; | |
2749 | ||
e2a0a9d6 JS |
2750 | num_bde = lpfc_bg_setup_bpl(phba, scsi_cmnd, bpl, |
2751 | datasegcnt); | |
c9404c9c | 2752 | /* we should have 2 or more entries in buffer list */ |
e2a0a9d6 JS |
2753 | if (num_bde < 2) |
2754 | goto err; | |
2755 | break; | |
96f7077f JS |
2756 | |
2757 | case LPFC_PG_TYPE_DIF_BUF: | |
e2a0a9d6 JS |
2758 | /* |
2759 | * This type indicates that protection buffers are | |
2760 | * passed to the driver, so that needs to be prepared | |
2761 | * for DMA | |
2762 | */ | |
2763 | protsegcnt = dma_map_sg(&phba->pcidev->dev, | |
2764 | scsi_prot_sglist(scsi_cmnd), | |
2765 | scsi_prot_sg_count(scsi_cmnd), datadir); | |
2766 | if (unlikely(!protsegcnt)) { | |
2767 | scsi_dma_unmap(scsi_cmnd); | |
2768 | return 1; | |
2769 | } | |
2770 | ||
2771 | lpfc_cmd->prot_seg_cnt = protsegcnt; | |
96f7077f JS |
2772 | |
2773 | /* | |
2774 | * There is a minimun of 4 BPLs used for every | |
2775 | * protection data segment. | |
2776 | */ | |
2777 | if ((lpfc_cmd->prot_seg_cnt * 4) > | |
2778 | (phba->cfg_total_seg_cnt - 2)) | |
2779 | goto err; | |
e2a0a9d6 JS |
2780 | |
2781 | num_bde = lpfc_bg_setup_bpl_prot(phba, scsi_cmnd, bpl, | |
2782 | datasegcnt, protsegcnt); | |
c9404c9c | 2783 | /* we should have 3 or more entries in buffer list */ |
96f7077f JS |
2784 | if ((num_bde < 3) || |
2785 | (num_bde > phba->cfg_total_seg_cnt)) | |
e2a0a9d6 JS |
2786 | goto err; |
2787 | break; | |
96f7077f | 2788 | |
e2a0a9d6 JS |
2789 | case LPFC_PG_TYPE_INVALID: |
2790 | default: | |
96f7077f JS |
2791 | scsi_dma_unmap(scsi_cmnd); |
2792 | lpfc_cmd->seg_cnt = 0; | |
2793 | ||
e2a0a9d6 JS |
2794 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, |
2795 | "9022 Unexpected protection group %i\n", | |
2796 | prot_group_type); | |
2797 | return 1; | |
2798 | } | |
2799 | } | |
2800 | ||
2801 | /* | |
2802 | * Finish initializing those IOCB fields that are dependent on the | |
2803 | * scsi_cmnd request_buffer. Note that the bdeSize is explicitly | |
2804 | * reinitialized since all iocb memory resources are used many times | |
2805 | * for transmit, receive, and continuation bpl's. | |
2806 | */ | |
2807 | iocb_cmd->un.fcpi64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64)); | |
2808 | iocb_cmd->un.fcpi64.bdl.bdeSize += (num_bde * sizeof(struct ulp_bde64)); | |
2809 | iocb_cmd->ulpBdeCount = 1; | |
2810 | iocb_cmd->ulpLe = 1; | |
2811 | ||
a6887e28 | 2812 | fcpdl = lpfc_bg_scsi_adjust_dl(phba, lpfc_cmd); |
e2a0a9d6 JS |
2813 | fcp_cmnd->fcpDl = be32_to_cpu(fcpdl); |
2814 | ||
2815 | /* | |
2816 | * Due to difference in data length between DIF/non-DIF paths, | |
2817 | * we need to set word 4 of IOCB here | |
2818 | */ | |
2819 | iocb_cmd->un.fcpi.fcpi_parm = fcpdl; | |
2820 | ||
dea3101e | 2821 | return 0; |
e2a0a9d6 | 2822 | err: |
96f7077f JS |
2823 | if (lpfc_cmd->seg_cnt) |
2824 | scsi_dma_unmap(scsi_cmnd); | |
2825 | if (lpfc_cmd->prot_seg_cnt) | |
2826 | dma_unmap_sg(&phba->pcidev->dev, scsi_prot_sglist(scsi_cmnd), | |
2827 | scsi_prot_sg_count(scsi_cmnd), | |
2828 | scsi_cmnd->sc_data_direction); | |
2829 | ||
e2a0a9d6 | 2830 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, |
96f7077f JS |
2831 | "9023 Cannot setup S/G List for HBA" |
2832 | "IO segs %d/%d BPL %d SCSI %d: %d %d\n", | |
2833 | lpfc_cmd->seg_cnt, lpfc_cmd->prot_seg_cnt, | |
2834 | phba->cfg_total_seg_cnt, phba->cfg_sg_seg_cnt, | |
e2a0a9d6 | 2835 | prot_group_type, num_bde); |
96f7077f JS |
2836 | |
2837 | lpfc_cmd->seg_cnt = 0; | |
2838 | lpfc_cmd->prot_seg_cnt = 0; | |
e2a0a9d6 JS |
2839 | return 1; |
2840 | } | |
2841 | ||
737d4248 JS |
2842 | /* |
2843 | * This function calcuates the T10 DIF guard tag | |
2844 | * on the specified data using a CRC algorithmn | |
2845 | * using crc_t10dif. | |
2846 | */ | |
7bfe781e | 2847 | static uint16_t |
737d4248 JS |
2848 | lpfc_bg_crc(uint8_t *data, int count) |
2849 | { | |
2850 | uint16_t crc = 0; | |
2851 | uint16_t x; | |
2852 | ||
2853 | crc = crc_t10dif(data, count); | |
2854 | x = cpu_to_be16(crc); | |
2855 | return x; | |
2856 | } | |
2857 | ||
2858 | /* | |
2859 | * This function calcuates the T10 DIF guard tag | |
2860 | * on the specified data using a CSUM algorithmn | |
2861 | * using ip_compute_csum. | |
2862 | */ | |
7bfe781e | 2863 | static uint16_t |
737d4248 JS |
2864 | lpfc_bg_csum(uint8_t *data, int count) |
2865 | { | |
2866 | uint16_t ret; | |
2867 | ||
2868 | ret = ip_compute_csum(data, count); | |
2869 | return ret; | |
2870 | } | |
2871 | ||
2872 | /* | |
2873 | * This function examines the protection data to try to determine | |
2874 | * what type of T10-DIF error occurred. | |
2875 | */ | |
7bfe781e | 2876 | static void |
737d4248 JS |
2877 | lpfc_calc_bg_err(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) |
2878 | { | |
2879 | struct scatterlist *sgpe; /* s/g prot entry */ | |
2880 | struct scatterlist *sgde; /* s/g data entry */ | |
2881 | struct scsi_cmnd *cmd = lpfc_cmd->pCmd; | |
2882 | struct scsi_dif_tuple *src = NULL; | |
2883 | uint8_t *data_src = NULL; | |
db6f1c2f | 2884 | uint16_t guard_tag; |
737d4248 JS |
2885 | uint16_t start_app_tag, app_tag; |
2886 | uint32_t start_ref_tag, ref_tag; | |
2887 | int prot, protsegcnt; | |
2888 | int err_type, len, data_len; | |
2889 | int chk_ref, chk_app, chk_guard; | |
2890 | uint16_t sum; | |
2891 | unsigned blksize; | |
2892 | ||
2893 | err_type = BGS_GUARD_ERR_MASK; | |
2894 | sum = 0; | |
2895 | guard_tag = 0; | |
2896 | ||
2897 | /* First check to see if there is protection data to examine */ | |
2898 | prot = scsi_get_prot_op(cmd); | |
2899 | if ((prot == SCSI_PROT_READ_STRIP) || | |
2900 | (prot == SCSI_PROT_WRITE_INSERT) || | |
2901 | (prot == SCSI_PROT_NORMAL)) | |
2902 | goto out; | |
2903 | ||
2904 | /* Currently the driver just supports ref_tag and guard_tag checking */ | |
2905 | chk_ref = 1; | |
2906 | chk_app = 0; | |
2907 | chk_guard = 0; | |
2908 | ||
2909 | /* Setup a ptr to the protection data provided by the SCSI host */ | |
2910 | sgpe = scsi_prot_sglist(cmd); | |
2911 | protsegcnt = lpfc_cmd->prot_seg_cnt; | |
2912 | ||
2913 | if (sgpe && protsegcnt) { | |
2914 | ||
2915 | /* | |
2916 | * We will only try to verify guard tag if the segment | |
2917 | * data length is a multiple of the blksize. | |
2918 | */ | |
2919 | sgde = scsi_sglist(cmd); | |
2920 | blksize = lpfc_cmd_blksize(cmd); | |
2921 | data_src = (uint8_t *)sg_virt(sgde); | |
2922 | data_len = sgde->length; | |
2923 | if ((data_len & (blksize - 1)) == 0) | |
2924 | chk_guard = 1; | |
737d4248 | 2925 | |
e85d8f9f | 2926 | src = (struct scsi_dif_tuple *)sg_virt(sgpe); |
a6887e28 | 2927 | start_ref_tag = (uint32_t)scsi_get_lba(cmd); /* Truncate LBA */ |
737d4248 | 2928 | start_app_tag = src->app_tag; |
737d4248 JS |
2929 | len = sgpe->length; |
2930 | while (src && protsegcnt) { | |
2931 | while (len) { | |
2932 | ||
2933 | /* | |
2934 | * First check to see if a protection data | |
2935 | * check is valid | |
2936 | */ | |
2937 | if ((src->ref_tag == 0xffffffff) || | |
2938 | (src->app_tag == 0xffff)) { | |
2939 | start_ref_tag++; | |
2940 | goto skipit; | |
2941 | } | |
2942 | ||
9c6aa9d7 | 2943 | /* First Guard Tag checking */ |
737d4248 JS |
2944 | if (chk_guard) { |
2945 | guard_tag = src->guard_tag; | |
9c6aa9d7 | 2946 | if (lpfc_cmd_guard_csum(cmd)) |
737d4248 JS |
2947 | sum = lpfc_bg_csum(data_src, |
2948 | blksize); | |
2949 | else | |
2950 | sum = lpfc_bg_crc(data_src, | |
2951 | blksize); | |
2952 | if ((guard_tag != sum)) { | |
2953 | err_type = BGS_GUARD_ERR_MASK; | |
2954 | goto out; | |
2955 | } | |
2956 | } | |
9c6aa9d7 JS |
2957 | |
2958 | /* Reference Tag checking */ | |
2959 | ref_tag = be32_to_cpu(src->ref_tag); | |
2960 | if (chk_ref && (ref_tag != start_ref_tag)) { | |
2961 | err_type = BGS_REFTAG_ERR_MASK; | |
2962 | goto out; | |
2963 | } | |
2964 | start_ref_tag++; | |
2965 | ||
2966 | /* App Tag checking */ | |
2967 | app_tag = src->app_tag; | |
2968 | if (chk_app && (app_tag != start_app_tag)) { | |
2969 | err_type = BGS_APPTAG_ERR_MASK; | |
2970 | goto out; | |
2971 | } | |
737d4248 JS |
2972 | skipit: |
2973 | len -= sizeof(struct scsi_dif_tuple); | |
2974 | if (len < 0) | |
2975 | len = 0; | |
2976 | src++; | |
2977 | ||
2978 | data_src += blksize; | |
2979 | data_len -= blksize; | |
2980 | ||
2981 | /* | |
2982 | * Are we at the end of the Data segment? | |
2983 | * The data segment is only used for Guard | |
2984 | * tag checking. | |
2985 | */ | |
2986 | if (chk_guard && (data_len == 0)) { | |
2987 | chk_guard = 0; | |
2988 | sgde = sg_next(sgde); | |
2989 | if (!sgde) | |
2990 | goto out; | |
2991 | ||
2992 | data_src = (uint8_t *)sg_virt(sgde); | |
2993 | data_len = sgde->length; | |
2994 | if ((data_len & (blksize - 1)) == 0) | |
2995 | chk_guard = 1; | |
2996 | } | |
2997 | } | |
2998 | ||
2999 | /* Goto the next Protection data segment */ | |
3000 | sgpe = sg_next(sgpe); | |
3001 | if (sgpe) { | |
3002 | src = (struct scsi_dif_tuple *)sg_virt(sgpe); | |
3003 | len = sgpe->length; | |
3004 | } else { | |
3005 | src = NULL; | |
3006 | } | |
3007 | protsegcnt--; | |
3008 | } | |
3009 | } | |
3010 | out: | |
3011 | if (err_type == BGS_GUARD_ERR_MASK) { | |
3012 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
3013 | 0x10, 0x1); | |
3014 | cmd->result = DRIVER_SENSE << 24 | |
3015 | | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); | |
3016 | phba->bg_guard_err_cnt++; | |
3017 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, | |
3018 | "9069 BLKGRD: LBA %lx grd_tag error %x != %x\n", | |
3019 | (unsigned long)scsi_get_lba(cmd), | |
3020 | sum, guard_tag); | |
3021 | ||
3022 | } else if (err_type == BGS_REFTAG_ERR_MASK) { | |
3023 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
3024 | 0x10, 0x3); | |
3025 | cmd->result = DRIVER_SENSE << 24 | |
3026 | | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); | |
3027 | ||
3028 | phba->bg_reftag_err_cnt++; | |
3029 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, | |
3030 | "9066 BLKGRD: LBA %lx ref_tag error %x != %x\n", | |
3031 | (unsigned long)scsi_get_lba(cmd), | |
3032 | ref_tag, start_ref_tag); | |
3033 | ||
3034 | } else if (err_type == BGS_APPTAG_ERR_MASK) { | |
3035 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
3036 | 0x10, 0x2); | |
3037 | cmd->result = DRIVER_SENSE << 24 | |
3038 | | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); | |
3039 | ||
3040 | phba->bg_apptag_err_cnt++; | |
3041 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, | |
3042 | "9041 BLKGRD: LBA %lx app_tag error %x != %x\n", | |
3043 | (unsigned long)scsi_get_lba(cmd), | |
3044 | app_tag, start_app_tag); | |
3045 | } | |
3046 | } | |
3047 | ||
3048 | ||
e2a0a9d6 JS |
3049 | /* |
3050 | * This function checks for BlockGuard errors detected by | |
3051 | * the HBA. In case of errors, the ASC/ASCQ fields in the | |
3052 | * sense buffer will be set accordingly, paired with | |
3053 | * ILLEGAL_REQUEST to signal to the kernel that the HBA | |
3054 | * detected corruption. | |
3055 | * | |
3056 | * Returns: | |
3057 | * 0 - No error found | |
3058 | * 1 - BlockGuard error found | |
3059 | * -1 - Internal error (bad profile, ...etc) | |
3060 | */ | |
3061 | static int | |
3062 | lpfc_parse_bg_err(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd, | |
3063 | struct lpfc_iocbq *pIocbOut) | |
3064 | { | |
3065 | struct scsi_cmnd *cmd = lpfc_cmd->pCmd; | |
3066 | struct sli3_bg_fields *bgf = &pIocbOut->iocb.unsli3.sli3_bg; | |
3067 | int ret = 0; | |
3068 | uint32_t bghm = bgf->bghm; | |
3069 | uint32_t bgstat = bgf->bgstat; | |
3070 | uint64_t failing_sector = 0; | |
3071 | ||
e2a0a9d6 JS |
3072 | spin_lock(&_dump_buf_lock); |
3073 | if (!_dump_buf_done) { | |
6a9c52cf JS |
3074 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, "9070 BLKGRD: Saving" |
3075 | " Data for %u blocks to debugfs\n", | |
e2a0a9d6 | 3076 | (cmd->cmnd[7] << 8 | cmd->cmnd[8])); |
6a9c52cf | 3077 | lpfc_debug_save_data(phba, cmd); |
e2a0a9d6 JS |
3078 | |
3079 | /* If we have a prot sgl, save the DIF buffer */ | |
3080 | if (lpfc_prot_group_type(phba, cmd) == | |
3081 | LPFC_PG_TYPE_DIF_BUF) { | |
6a9c52cf JS |
3082 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, "9071 BLKGRD: " |
3083 | "Saving DIF for %u blocks to debugfs\n", | |
3084 | (cmd->cmnd[7] << 8 | cmd->cmnd[8])); | |
3085 | lpfc_debug_save_dif(phba, cmd); | |
e2a0a9d6 JS |
3086 | } |
3087 | ||
3088 | _dump_buf_done = 1; | |
3089 | } | |
3090 | spin_unlock(&_dump_buf_lock); | |
3091 | ||
3092 | if (lpfc_bgs_get_invalid_prof(bgstat)) { | |
3093 | cmd->result = ScsiResult(DID_ERROR, 0); | |
737d4248 JS |
3094 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
3095 | "9072 BLKGRD: Invalid BG Profile in cmd" | |
3096 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
3097 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
3098 | (unsigned long long)scsi_get_lba(cmd), | |
3099 | blk_rq_sectors(cmd->request), bgstat, bghm); | |
e2a0a9d6 JS |
3100 | ret = (-1); |
3101 | goto out; | |
3102 | } | |
3103 | ||
3104 | if (lpfc_bgs_get_uninit_dif_block(bgstat)) { | |
3105 | cmd->result = ScsiResult(DID_ERROR, 0); | |
737d4248 JS |
3106 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
3107 | "9073 BLKGRD: Invalid BG PDIF Block in cmd" | |
3108 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
3109 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
3110 | (unsigned long long)scsi_get_lba(cmd), | |
3111 | blk_rq_sectors(cmd->request), bgstat, bghm); | |
e2a0a9d6 JS |
3112 | ret = (-1); |
3113 | goto out; | |
3114 | } | |
3115 | ||
3116 | if (lpfc_bgs_get_guard_err(bgstat)) { | |
3117 | ret = 1; | |
3118 | ||
3119 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
3120 | 0x10, 0x1); | |
1c9fbafc | 3121 | cmd->result = DRIVER_SENSE << 24 |
e2a0a9d6 JS |
3122 | | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); |
3123 | phba->bg_guard_err_cnt++; | |
737d4248 JS |
3124 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
3125 | "9055 BLKGRD: Guard Tag error in cmd" | |
3126 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
3127 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
3128 | (unsigned long long)scsi_get_lba(cmd), | |
3129 | blk_rq_sectors(cmd->request), bgstat, bghm); | |
e2a0a9d6 JS |
3130 | } |
3131 | ||
3132 | if (lpfc_bgs_get_reftag_err(bgstat)) { | |
3133 | ret = 1; | |
3134 | ||
3135 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
3136 | 0x10, 0x3); | |
1c9fbafc | 3137 | cmd->result = DRIVER_SENSE << 24 |
e2a0a9d6 JS |
3138 | | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); |
3139 | ||
3140 | phba->bg_reftag_err_cnt++; | |
737d4248 JS |
3141 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
3142 | "9056 BLKGRD: Ref Tag error in cmd" | |
3143 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
3144 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
3145 | (unsigned long long)scsi_get_lba(cmd), | |
3146 | blk_rq_sectors(cmd->request), bgstat, bghm); | |
e2a0a9d6 JS |
3147 | } |
3148 | ||
3149 | if (lpfc_bgs_get_apptag_err(bgstat)) { | |
3150 | ret = 1; | |
3151 | ||
3152 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
3153 | 0x10, 0x2); | |
1c9fbafc | 3154 | cmd->result = DRIVER_SENSE << 24 |
e2a0a9d6 JS |
3155 | | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); |
3156 | ||
3157 | phba->bg_apptag_err_cnt++; | |
737d4248 JS |
3158 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
3159 | "9061 BLKGRD: App Tag error in cmd" | |
3160 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
3161 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
3162 | (unsigned long long)scsi_get_lba(cmd), | |
3163 | blk_rq_sectors(cmd->request), bgstat, bghm); | |
e2a0a9d6 JS |
3164 | } |
3165 | ||
3166 | if (lpfc_bgs_get_hi_water_mark_present(bgstat)) { | |
3167 | /* | |
3168 | * setup sense data descriptor 0 per SPC-4 as an information | |
7c56b9fd JS |
3169 | * field, and put the failing LBA in it. |
3170 | * This code assumes there was also a guard/app/ref tag error | |
3171 | * indication. | |
e2a0a9d6 | 3172 | */ |
7c56b9fd JS |
3173 | cmd->sense_buffer[7] = 0xc; /* Additional sense length */ |
3174 | cmd->sense_buffer[8] = 0; /* Information descriptor type */ | |
3175 | cmd->sense_buffer[9] = 0xa; /* Additional descriptor length */ | |
3176 | cmd->sense_buffer[10] = 0x80; /* Validity bit */ | |
acd6859b JS |
3177 | |
3178 | /* bghm is a "on the wire" FC frame based count */ | |
3179 | switch (scsi_get_prot_op(cmd)) { | |
3180 | case SCSI_PROT_READ_INSERT: | |
3181 | case SCSI_PROT_WRITE_STRIP: | |
3182 | bghm /= cmd->device->sector_size; | |
3183 | break; | |
3184 | case SCSI_PROT_READ_STRIP: | |
3185 | case SCSI_PROT_WRITE_INSERT: | |
3186 | case SCSI_PROT_READ_PASS: | |
3187 | case SCSI_PROT_WRITE_PASS: | |
3188 | bghm /= (cmd->device->sector_size + | |
3189 | sizeof(struct scsi_dif_tuple)); | |
3190 | break; | |
3191 | } | |
e2a0a9d6 JS |
3192 | |
3193 | failing_sector = scsi_get_lba(cmd); | |
3194 | failing_sector += bghm; | |
3195 | ||
7c56b9fd JS |
3196 | /* Descriptor Information */ |
3197 | put_unaligned_be64(failing_sector, &cmd->sense_buffer[12]); | |
e2a0a9d6 JS |
3198 | } |
3199 | ||
3200 | if (!ret) { | |
3201 | /* No error was reported - problem in FW? */ | |
737d4248 JS |
3202 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
3203 | "9057 BLKGRD: Unknown error in cmd" | |
3204 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
3205 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
3206 | (unsigned long long)scsi_get_lba(cmd), | |
3207 | blk_rq_sectors(cmd->request), bgstat, bghm); | |
3208 | ||
3209 | /* Calcuate what type of error it was */ | |
3210 | lpfc_calc_bg_err(phba, lpfc_cmd); | |
e2a0a9d6 | 3211 | } |
e2a0a9d6 JS |
3212 | out: |
3213 | return ret; | |
dea3101e JB |
3214 | } |
3215 | ||
da0436e9 JS |
3216 | /** |
3217 | * lpfc_scsi_prep_dma_buf_s4 - DMA mapping for scsi buffer to SLI4 IF spec | |
3218 | * @phba: The Hba for which this call is being executed. | |
3219 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
3220 | * | |
3221 | * This routine does the pci dma mapping for scatter-gather list of scsi cmnd | |
3222 | * field of @lpfc_cmd for device with SLI-4 interface spec. | |
3223 | * | |
3224 | * Return codes: | |
6c8eea54 JS |
3225 | * 1 - Error |
3226 | * 0 - Success | |
da0436e9 JS |
3227 | **/ |
3228 | static int | |
3229 | lpfc_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) | |
3230 | { | |
3231 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
3232 | struct scatterlist *sgel = NULL; | |
3233 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
3234 | struct sli4_sge *sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl; | |
fedd3b7b | 3235 | struct sli4_sge *first_data_sgl; |
da0436e9 JS |
3236 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; |
3237 | dma_addr_t physaddr; | |
3238 | uint32_t num_bde = 0; | |
3239 | uint32_t dma_len; | |
3240 | uint32_t dma_offset = 0; | |
3241 | int nseg; | |
fedd3b7b | 3242 | struct ulp_bde64 *bde; |
da0436e9 JS |
3243 | |
3244 | /* | |
3245 | * There are three possibilities here - use scatter-gather segment, use | |
3246 | * the single mapping, or neither. Start the lpfc command prep by | |
3247 | * bumping the bpl beyond the fcp_cmnd and fcp_rsp regions to the first | |
3248 | * data bde entry. | |
3249 | */ | |
3250 | if (scsi_sg_count(scsi_cmnd)) { | |
3251 | /* | |
3252 | * The driver stores the segment count returned from pci_map_sg | |
3253 | * because this a count of dma-mappings used to map the use_sg | |
3254 | * pages. They are not guaranteed to be the same for those | |
3255 | * architectures that implement an IOMMU. | |
3256 | */ | |
3257 | ||
3258 | nseg = scsi_dma_map(scsi_cmnd); | |
5116fbf1 | 3259 | if (unlikely(nseg <= 0)) |
da0436e9 JS |
3260 | return 1; |
3261 | sgl += 1; | |
3262 | /* clear the last flag in the fcp_rsp map entry */ | |
3263 | sgl->word2 = le32_to_cpu(sgl->word2); | |
3264 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
3265 | sgl->word2 = cpu_to_le32(sgl->word2); | |
3266 | sgl += 1; | |
fedd3b7b | 3267 | first_data_sgl = sgl; |
da0436e9 JS |
3268 | lpfc_cmd->seg_cnt = nseg; |
3269 | if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) { | |
6a9c52cf JS |
3270 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, "9074 BLKGRD:" |
3271 | " %s: Too many sg segments from " | |
3272 | "dma_map_sg. Config %d, seg_cnt %d\n", | |
3273 | __func__, phba->cfg_sg_seg_cnt, | |
da0436e9 | 3274 | lpfc_cmd->seg_cnt); |
96f7077f | 3275 | lpfc_cmd->seg_cnt = 0; |
da0436e9 JS |
3276 | scsi_dma_unmap(scsi_cmnd); |
3277 | return 1; | |
3278 | } | |
3279 | ||
3280 | /* | |
3281 | * The driver established a maximum scatter-gather segment count | |
3282 | * during probe that limits the number of sg elements in any | |
3283 | * single scsi command. Just run through the seg_cnt and format | |
3284 | * the sge's. | |
3285 | * When using SLI-3 the driver will try to fit all the BDEs into | |
3286 | * the IOCB. If it can't then the BDEs get added to a BPL as it | |
3287 | * does for SLI-2 mode. | |
3288 | */ | |
3289 | scsi_for_each_sg(scsi_cmnd, sgel, nseg, num_bde) { | |
3290 | physaddr = sg_dma_address(sgel); | |
3291 | dma_len = sg_dma_len(sgel); | |
da0436e9 JS |
3292 | sgl->addr_lo = cpu_to_le32(putPaddrLow(physaddr)); |
3293 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(physaddr)); | |
0558056c | 3294 | sgl->word2 = le32_to_cpu(sgl->word2); |
da0436e9 JS |
3295 | if ((num_bde + 1) == nseg) |
3296 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
3297 | else | |
3298 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
3299 | bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); | |
f9bb2da1 | 3300 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA); |
da0436e9 | 3301 | sgl->word2 = cpu_to_le32(sgl->word2); |
28baac74 | 3302 | sgl->sge_len = cpu_to_le32(dma_len); |
da0436e9 JS |
3303 | dma_offset += dma_len; |
3304 | sgl++; | |
3305 | } | |
fedd3b7b JS |
3306 | /* setup the performance hint (first data BDE) if enabled */ |
3307 | if (phba->sli3_options & LPFC_SLI4_PERFH_ENABLED) { | |
3308 | bde = (struct ulp_bde64 *) | |
3309 | &(iocb_cmd->unsli3.sli3Words[5]); | |
3310 | bde->addrLow = first_data_sgl->addr_lo; | |
3311 | bde->addrHigh = first_data_sgl->addr_hi; | |
3312 | bde->tus.f.bdeSize = | |
3313 | le32_to_cpu(first_data_sgl->sge_len); | |
3314 | bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
3315 | bde->tus.w = cpu_to_le32(bde->tus.w); | |
3316 | } | |
da0436e9 JS |
3317 | } else { |
3318 | sgl += 1; | |
3319 | /* clear the last flag in the fcp_rsp map entry */ | |
3320 | sgl->word2 = le32_to_cpu(sgl->word2); | |
3321 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
3322 | sgl->word2 = cpu_to_le32(sgl->word2); | |
3323 | } | |
3324 | ||
3325 | /* | |
3326 | * Finish initializing those IOCB fields that are dependent on the | |
3327 | * scsi_cmnd request_buffer. Note that for SLI-2 the bdeSize is | |
3328 | * explicitly reinitialized. | |
3329 | * all iocb memory resources are reused. | |
3330 | */ | |
3331 | fcp_cmnd->fcpDl = cpu_to_be32(scsi_bufflen(scsi_cmnd)); | |
3332 | ||
3333 | /* | |
3334 | * Due to difference in data length between DIF/non-DIF paths, | |
3335 | * we need to set word 4 of IOCB here | |
3336 | */ | |
3337 | iocb_cmd->un.fcpi.fcpi_parm = scsi_bufflen(scsi_cmnd); | |
1ba981fd JS |
3338 | |
3339 | /* | |
3340 | * If the OAS driver feature is enabled and the lun is enabled for | |
3341 | * OAS, set the oas iocb related flags. | |
3342 | */ | |
f38fa0bb | 3343 | if ((phba->cfg_fof) && ((struct lpfc_device_data *) |
c92c841c | 3344 | scsi_cmnd->device->hostdata)->oas_enabled) { |
9bd2bff5 | 3345 | lpfc_cmd->cur_iocbq.iocb_flag |= (LPFC_IO_OAS | LPFC_IO_FOF); |
c92c841c JS |
3346 | lpfc_cmd->cur_iocbq.priority = ((struct lpfc_device_data *) |
3347 | scsi_cmnd->device->hostdata)->priority; | |
3348 | } | |
da0436e9 JS |
3349 | return 0; |
3350 | } | |
3351 | ||
acd6859b JS |
3352 | /** |
3353 | * lpfc_bg_scsi_prep_dma_buf_s4 - DMA mapping for scsi buffer to SLI4 IF spec | |
3354 | * @phba: The Hba for which this call is being executed. | |
3355 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
3356 | * | |
3357 | * This is the protection/DIF aware version of | |
3358 | * lpfc_scsi_prep_dma_buf(). It may be a good idea to combine the | |
3359 | * two functions eventually, but for now, it's here | |
3360 | **/ | |
3361 | static int | |
3362 | lpfc_bg_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, | |
3363 | struct lpfc_scsi_buf *lpfc_cmd) | |
3364 | { | |
3365 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
3366 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
3367 | struct sli4_sge *sgl = (struct sli4_sge *)(lpfc_cmd->fcp_bpl); | |
3368 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; | |
96f7077f | 3369 | uint32_t num_sge = 0; |
acd6859b JS |
3370 | int datasegcnt, protsegcnt, datadir = scsi_cmnd->sc_data_direction; |
3371 | int prot_group_type = 0; | |
3372 | int fcpdl; | |
3373 | ||
3374 | /* | |
3375 | * Start the lpfc command prep by bumping the sgl beyond fcp_cmnd | |
96f7077f | 3376 | * fcp_rsp regions to the first data sge entry |
acd6859b JS |
3377 | */ |
3378 | if (scsi_sg_count(scsi_cmnd)) { | |
3379 | /* | |
3380 | * The driver stores the segment count returned from pci_map_sg | |
3381 | * because this a count of dma-mappings used to map the use_sg | |
3382 | * pages. They are not guaranteed to be the same for those | |
3383 | * architectures that implement an IOMMU. | |
3384 | */ | |
3385 | datasegcnt = dma_map_sg(&phba->pcidev->dev, | |
3386 | scsi_sglist(scsi_cmnd), | |
3387 | scsi_sg_count(scsi_cmnd), datadir); | |
3388 | if (unlikely(!datasegcnt)) | |
3389 | return 1; | |
3390 | ||
3391 | sgl += 1; | |
3392 | /* clear the last flag in the fcp_rsp map entry */ | |
3393 | sgl->word2 = le32_to_cpu(sgl->word2); | |
3394 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
3395 | sgl->word2 = cpu_to_le32(sgl->word2); | |
3396 | ||
3397 | sgl += 1; | |
3398 | lpfc_cmd->seg_cnt = datasegcnt; | |
96f7077f JS |
3399 | |
3400 | /* First check if data segment count from SCSI Layer is good */ | |
3401 | if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) | |
3402 | goto err; | |
acd6859b JS |
3403 | |
3404 | prot_group_type = lpfc_prot_group_type(phba, scsi_cmnd); | |
3405 | ||
3406 | switch (prot_group_type) { | |
3407 | case LPFC_PG_TYPE_NO_DIF: | |
96f7077f JS |
3408 | /* Here we need to add a DISEED to the count */ |
3409 | if ((lpfc_cmd->seg_cnt + 1) > phba->cfg_total_seg_cnt) | |
3410 | goto err; | |
3411 | ||
3412 | num_sge = lpfc_bg_setup_sgl(phba, scsi_cmnd, sgl, | |
acd6859b | 3413 | datasegcnt); |
96f7077f | 3414 | |
acd6859b | 3415 | /* we should have 2 or more entries in buffer list */ |
96f7077f | 3416 | if (num_sge < 2) |
acd6859b JS |
3417 | goto err; |
3418 | break; | |
96f7077f JS |
3419 | |
3420 | case LPFC_PG_TYPE_DIF_BUF: | |
acd6859b JS |
3421 | /* |
3422 | * This type indicates that protection buffers are | |
3423 | * passed to the driver, so that needs to be prepared | |
3424 | * for DMA | |
3425 | */ | |
3426 | protsegcnt = dma_map_sg(&phba->pcidev->dev, | |
3427 | scsi_prot_sglist(scsi_cmnd), | |
3428 | scsi_prot_sg_count(scsi_cmnd), datadir); | |
3429 | if (unlikely(!protsegcnt)) { | |
3430 | scsi_dma_unmap(scsi_cmnd); | |
3431 | return 1; | |
3432 | } | |
3433 | ||
3434 | lpfc_cmd->prot_seg_cnt = protsegcnt; | |
96f7077f JS |
3435 | /* |
3436 | * There is a minimun of 3 SGEs used for every | |
3437 | * protection data segment. | |
3438 | */ | |
3439 | if ((lpfc_cmd->prot_seg_cnt * 3) > | |
3440 | (phba->cfg_total_seg_cnt - 2)) | |
3441 | goto err; | |
acd6859b | 3442 | |
96f7077f | 3443 | num_sge = lpfc_bg_setup_sgl_prot(phba, scsi_cmnd, sgl, |
acd6859b | 3444 | datasegcnt, protsegcnt); |
96f7077f | 3445 | |
acd6859b | 3446 | /* we should have 3 or more entries in buffer list */ |
96f7077f JS |
3447 | if ((num_sge < 3) || |
3448 | (num_sge > phba->cfg_total_seg_cnt)) | |
acd6859b JS |
3449 | goto err; |
3450 | break; | |
96f7077f | 3451 | |
acd6859b JS |
3452 | case LPFC_PG_TYPE_INVALID: |
3453 | default: | |
96f7077f JS |
3454 | scsi_dma_unmap(scsi_cmnd); |
3455 | lpfc_cmd->seg_cnt = 0; | |
3456 | ||
acd6859b JS |
3457 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, |
3458 | "9083 Unexpected protection group %i\n", | |
3459 | prot_group_type); | |
3460 | return 1; | |
3461 | } | |
3462 | } | |
3463 | ||
8012cc38 JS |
3464 | switch (scsi_get_prot_op(scsi_cmnd)) { |
3465 | case SCSI_PROT_WRITE_STRIP: | |
3466 | case SCSI_PROT_READ_STRIP: | |
3467 | lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_IO_DIF_STRIP; | |
3468 | break; | |
3469 | case SCSI_PROT_WRITE_INSERT: | |
3470 | case SCSI_PROT_READ_INSERT: | |
3471 | lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_IO_DIF_INSERT; | |
3472 | break; | |
3473 | case SCSI_PROT_WRITE_PASS: | |
3474 | case SCSI_PROT_READ_PASS: | |
3475 | lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_IO_DIF_PASS; | |
3476 | break; | |
3477 | } | |
3478 | ||
acd6859b | 3479 | fcpdl = lpfc_bg_scsi_adjust_dl(phba, lpfc_cmd); |
acd6859b JS |
3480 | fcp_cmnd->fcpDl = be32_to_cpu(fcpdl); |
3481 | ||
3482 | /* | |
3483 | * Due to difference in data length between DIF/non-DIF paths, | |
3484 | * we need to set word 4 of IOCB here | |
3485 | */ | |
3486 | iocb_cmd->un.fcpi.fcpi_parm = fcpdl; | |
acd6859b | 3487 | |
9bd2bff5 JS |
3488 | /* |
3489 | * If the OAS driver feature is enabled and the lun is enabled for | |
3490 | * OAS, set the oas iocb related flags. | |
3491 | */ | |
3492 | if ((phba->cfg_fof) && ((struct lpfc_device_data *) | |
3493 | scsi_cmnd->device->hostdata)->oas_enabled) | |
3494 | lpfc_cmd->cur_iocbq.iocb_flag |= (LPFC_IO_OAS | LPFC_IO_FOF); | |
3495 | ||
acd6859b JS |
3496 | return 0; |
3497 | err: | |
96f7077f JS |
3498 | if (lpfc_cmd->seg_cnt) |
3499 | scsi_dma_unmap(scsi_cmnd); | |
3500 | if (lpfc_cmd->prot_seg_cnt) | |
3501 | dma_unmap_sg(&phba->pcidev->dev, scsi_prot_sglist(scsi_cmnd), | |
3502 | scsi_prot_sg_count(scsi_cmnd), | |
3503 | scsi_cmnd->sc_data_direction); | |
3504 | ||
acd6859b | 3505 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, |
96f7077f JS |
3506 | "9084 Cannot setup S/G List for HBA" |
3507 | "IO segs %d/%d SGL %d SCSI %d: %d %d\n", | |
3508 | lpfc_cmd->seg_cnt, lpfc_cmd->prot_seg_cnt, | |
3509 | phba->cfg_total_seg_cnt, phba->cfg_sg_seg_cnt, | |
3510 | prot_group_type, num_sge); | |
3511 | ||
3512 | lpfc_cmd->seg_cnt = 0; | |
3513 | lpfc_cmd->prot_seg_cnt = 0; | |
acd6859b JS |
3514 | return 1; |
3515 | } | |
3516 | ||
3772a991 JS |
3517 | /** |
3518 | * lpfc_scsi_prep_dma_buf - Wrapper function for DMA mapping of scsi buffer | |
3519 | * @phba: The Hba for which this call is being executed. | |
3520 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
3521 | * | |
3522 | * This routine wraps the actual DMA mapping function pointer from the | |
3523 | * lpfc_hba struct. | |
3524 | * | |
3525 | * Return codes: | |
6c8eea54 JS |
3526 | * 1 - Error |
3527 | * 0 - Success | |
3772a991 JS |
3528 | **/ |
3529 | static inline int | |
3530 | lpfc_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) | |
3531 | { | |
3532 | return phba->lpfc_scsi_prep_dma_buf(phba, lpfc_cmd); | |
3533 | } | |
3534 | ||
acd6859b JS |
3535 | /** |
3536 | * lpfc_bg_scsi_prep_dma_buf - Wrapper function for DMA mapping of scsi buffer | |
3537 | * using BlockGuard. | |
3538 | * @phba: The Hba for which this call is being executed. | |
3539 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
3540 | * | |
3541 | * This routine wraps the actual DMA mapping function pointer from the | |
3542 | * lpfc_hba struct. | |
3543 | * | |
3544 | * Return codes: | |
3545 | * 1 - Error | |
3546 | * 0 - Success | |
3547 | **/ | |
3548 | static inline int | |
3549 | lpfc_bg_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) | |
3550 | { | |
3551 | return phba->lpfc_bg_scsi_prep_dma_buf(phba, lpfc_cmd); | |
3552 | } | |
3553 | ||
ea2151b4 | 3554 | /** |
3621a710 | 3555 | * lpfc_send_scsi_error_event - Posts an event when there is SCSI error |
ea2151b4 JS |
3556 | * @phba: Pointer to hba context object. |
3557 | * @vport: Pointer to vport object. | |
3558 | * @lpfc_cmd: Pointer to lpfc scsi command which reported the error. | |
3559 | * @rsp_iocb: Pointer to response iocb object which reported error. | |
3560 | * | |
3561 | * This function posts an event when there is a SCSI command reporting | |
3562 | * error from the scsi device. | |
3563 | **/ | |
3564 | static void | |
3565 | lpfc_send_scsi_error_event(struct lpfc_hba *phba, struct lpfc_vport *vport, | |
3566 | struct lpfc_scsi_buf *lpfc_cmd, struct lpfc_iocbq *rsp_iocb) { | |
3567 | struct scsi_cmnd *cmnd = lpfc_cmd->pCmd; | |
3568 | struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp; | |
3569 | uint32_t resp_info = fcprsp->rspStatus2; | |
3570 | uint32_t scsi_status = fcprsp->rspStatus3; | |
3571 | uint32_t fcpi_parm = rsp_iocb->iocb.un.fcpi.fcpi_parm; | |
3572 | struct lpfc_fast_path_event *fast_path_evt = NULL; | |
3573 | struct lpfc_nodelist *pnode = lpfc_cmd->rdata->pnode; | |
3574 | unsigned long flags; | |
3575 | ||
5989b8d4 JS |
3576 | if (!pnode || !NLP_CHK_NODE_ACT(pnode)) |
3577 | return; | |
3578 | ||
ea2151b4 JS |
3579 | /* If there is queuefull or busy condition send a scsi event */ |
3580 | if ((cmnd->result == SAM_STAT_TASK_SET_FULL) || | |
3581 | (cmnd->result == SAM_STAT_BUSY)) { | |
3582 | fast_path_evt = lpfc_alloc_fast_evt(phba); | |
3583 | if (!fast_path_evt) | |
3584 | return; | |
3585 | fast_path_evt->un.scsi_evt.event_type = | |
3586 | FC_REG_SCSI_EVENT; | |
3587 | fast_path_evt->un.scsi_evt.subcategory = | |
3588 | (cmnd->result == SAM_STAT_TASK_SET_FULL) ? | |
3589 | LPFC_EVENT_QFULL : LPFC_EVENT_DEVBSY; | |
3590 | fast_path_evt->un.scsi_evt.lun = cmnd->device->lun; | |
3591 | memcpy(&fast_path_evt->un.scsi_evt.wwpn, | |
3592 | &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
3593 | memcpy(&fast_path_evt->un.scsi_evt.wwnn, | |
3594 | &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
3595 | } else if ((resp_info & SNS_LEN_VALID) && fcprsp->rspSnsLen && | |
3596 | ((cmnd->cmnd[0] == READ_10) || (cmnd->cmnd[0] == WRITE_10))) { | |
3597 | fast_path_evt = lpfc_alloc_fast_evt(phba); | |
3598 | if (!fast_path_evt) | |
3599 | return; | |
3600 | fast_path_evt->un.check_cond_evt.scsi_event.event_type = | |
3601 | FC_REG_SCSI_EVENT; | |
3602 | fast_path_evt->un.check_cond_evt.scsi_event.subcategory = | |
3603 | LPFC_EVENT_CHECK_COND; | |
3604 | fast_path_evt->un.check_cond_evt.scsi_event.lun = | |
3605 | cmnd->device->lun; | |
3606 | memcpy(&fast_path_evt->un.check_cond_evt.scsi_event.wwpn, | |
3607 | &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
3608 | memcpy(&fast_path_evt->un.check_cond_evt.scsi_event.wwnn, | |
3609 | &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
3610 | fast_path_evt->un.check_cond_evt.sense_key = | |
3611 | cmnd->sense_buffer[2] & 0xf; | |
3612 | fast_path_evt->un.check_cond_evt.asc = cmnd->sense_buffer[12]; | |
3613 | fast_path_evt->un.check_cond_evt.ascq = cmnd->sense_buffer[13]; | |
3614 | } else if ((cmnd->sc_data_direction == DMA_FROM_DEVICE) && | |
3615 | fcpi_parm && | |
3616 | ((be32_to_cpu(fcprsp->rspResId) != fcpi_parm) || | |
3617 | ((scsi_status == SAM_STAT_GOOD) && | |
3618 | !(resp_info & (RESID_UNDER | RESID_OVER))))) { | |
3619 | /* | |
3620 | * If status is good or resid does not match with fcp_param and | |
3621 | * there is valid fcpi_parm, then there is a read_check error | |
3622 | */ | |
3623 | fast_path_evt = lpfc_alloc_fast_evt(phba); | |
3624 | if (!fast_path_evt) | |
3625 | return; | |
3626 | fast_path_evt->un.read_check_error.header.event_type = | |
3627 | FC_REG_FABRIC_EVENT; | |
3628 | fast_path_evt->un.read_check_error.header.subcategory = | |
3629 | LPFC_EVENT_FCPRDCHKERR; | |
3630 | memcpy(&fast_path_evt->un.read_check_error.header.wwpn, | |
3631 | &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
3632 | memcpy(&fast_path_evt->un.read_check_error.header.wwnn, | |
3633 | &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
3634 | fast_path_evt->un.read_check_error.lun = cmnd->device->lun; | |
3635 | fast_path_evt->un.read_check_error.opcode = cmnd->cmnd[0]; | |
3636 | fast_path_evt->un.read_check_error.fcpiparam = | |
3637 | fcpi_parm; | |
3638 | } else | |
3639 | return; | |
3640 | ||
3641 | fast_path_evt->vport = vport; | |
3642 | spin_lock_irqsave(&phba->hbalock, flags); | |
3643 | list_add_tail(&fast_path_evt->work_evt.evt_listp, &phba->work_list); | |
3644 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
3645 | lpfc_worker_wake_up(phba); | |
3646 | return; | |
3647 | } | |
9bad7671 JS |
3648 | |
3649 | /** | |
f1126688 | 3650 | * lpfc_scsi_unprep_dma_buf - Un-map DMA mapping of SG-list for dev |
3772a991 | 3651 | * @phba: The HBA for which this call is being executed. |
9bad7671 JS |
3652 | * @psb: The scsi buffer which is going to be un-mapped. |
3653 | * | |
3654 | * This routine does DMA un-mapping of scatter gather list of scsi command | |
3772a991 | 3655 | * field of @lpfc_cmd for device with SLI-3 interface spec. |
9bad7671 | 3656 | **/ |
bcf4dbfa | 3657 | static void |
f1126688 | 3658 | lpfc_scsi_unprep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) |
bcf4dbfa JS |
3659 | { |
3660 | /* | |
3661 | * There are only two special cases to consider. (1) the scsi command | |
3662 | * requested scatter-gather usage or (2) the scsi command allocated | |
3663 | * a request buffer, but did not request use_sg. There is a third | |
3664 | * case, but it does not require resource deallocation. | |
3665 | */ | |
a0b4f78f FT |
3666 | if (psb->seg_cnt > 0) |
3667 | scsi_dma_unmap(psb->pCmd); | |
e2a0a9d6 JS |
3668 | if (psb->prot_seg_cnt > 0) |
3669 | dma_unmap_sg(&phba->pcidev->dev, scsi_prot_sglist(psb->pCmd), | |
3670 | scsi_prot_sg_count(psb->pCmd), | |
3671 | psb->pCmd->sc_data_direction); | |
bcf4dbfa JS |
3672 | } |
3673 | ||
9bad7671 | 3674 | /** |
3621a710 | 3675 | * lpfc_handler_fcp_err - FCP response handler |
9bad7671 JS |
3676 | * @vport: The virtual port for which this call is being executed. |
3677 | * @lpfc_cmd: Pointer to lpfc_scsi_buf data structure. | |
3678 | * @rsp_iocb: The response IOCB which contains FCP error. | |
3679 | * | |
3680 | * This routine is called to process response IOCB with status field | |
3681 | * IOSTAT_FCP_RSP_ERROR. This routine sets result field of scsi command | |
3682 | * based upon SCSI and FCP error. | |
3683 | **/ | |
dea3101e | 3684 | static void |
2e0fef85 JS |
3685 | lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, |
3686 | struct lpfc_iocbq *rsp_iocb) | |
dea3101e | 3687 | { |
5afab6bb | 3688 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
3689 | struct scsi_cmnd *cmnd = lpfc_cmd->pCmd; |
3690 | struct fcp_cmnd *fcpcmd = lpfc_cmd->fcp_cmnd; | |
3691 | struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp; | |
7054a606 | 3692 | uint32_t fcpi_parm = rsp_iocb->iocb.un.fcpi.fcpi_parm; |
dea3101e JB |
3693 | uint32_t resp_info = fcprsp->rspStatus2; |
3694 | uint32_t scsi_status = fcprsp->rspStatus3; | |
c7743956 | 3695 | uint32_t *lp; |
dea3101e JB |
3696 | uint32_t host_status = DID_OK; |
3697 | uint32_t rsplen = 0; | |
5afab6bb | 3698 | uint32_t fcpDl; |
c7743956 | 3699 | uint32_t logit = LOG_FCP | LOG_FCP_ERROR; |
dea3101e | 3700 | |
ea2151b4 | 3701 | |
dea3101e JB |
3702 | /* |
3703 | * If this is a task management command, there is no | |
3704 | * scsi packet associated with this lpfc_cmd. The driver | |
3705 | * consumes it. | |
3706 | */ | |
3707 | if (fcpcmd->fcpCntl2) { | |
3708 | scsi_status = 0; | |
3709 | goto out; | |
3710 | } | |
3711 | ||
6a9c52cf JS |
3712 | if (resp_info & RSP_LEN_VALID) { |
3713 | rsplen = be32_to_cpu(fcprsp->rspRspLen); | |
e40a02c1 | 3714 | if (rsplen != 0 && rsplen != 4 && rsplen != 8) { |
6a9c52cf JS |
3715 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
3716 | "2719 Invalid response length: " | |
9cb78c16 | 3717 | "tgt x%x lun x%llx cmnd x%x rsplen x%x\n", |
6a9c52cf JS |
3718 | cmnd->device->id, |
3719 | cmnd->device->lun, cmnd->cmnd[0], | |
3720 | rsplen); | |
3721 | host_status = DID_ERROR; | |
3722 | goto out; | |
3723 | } | |
e40a02c1 JS |
3724 | if (fcprsp->rspInfo3 != RSP_NO_FAILURE) { |
3725 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
3726 | "2757 Protocol failure detected during " | |
3727 | "processing of FCP I/O op: " | |
9cb78c16 | 3728 | "tgt x%x lun x%llx cmnd x%x rspInfo3 x%x\n", |
e40a02c1 JS |
3729 | cmnd->device->id, |
3730 | cmnd->device->lun, cmnd->cmnd[0], | |
3731 | fcprsp->rspInfo3); | |
3732 | host_status = DID_ERROR; | |
3733 | goto out; | |
3734 | } | |
6a9c52cf JS |
3735 | } |
3736 | ||
c7743956 JS |
3737 | if ((resp_info & SNS_LEN_VALID) && fcprsp->rspSnsLen) { |
3738 | uint32_t snslen = be32_to_cpu(fcprsp->rspSnsLen); | |
3739 | if (snslen > SCSI_SENSE_BUFFERSIZE) | |
3740 | snslen = SCSI_SENSE_BUFFERSIZE; | |
3741 | ||
3742 | if (resp_info & RSP_LEN_VALID) | |
3743 | rsplen = be32_to_cpu(fcprsp->rspRspLen); | |
3744 | memcpy(cmnd->sense_buffer, &fcprsp->rspInfo0 + rsplen, snslen); | |
3745 | } | |
3746 | lp = (uint32_t *)cmnd->sense_buffer; | |
3747 | ||
aa1c7ee7 JS |
3748 | /* special handling for under run conditions */ |
3749 | if (!scsi_status && (resp_info & RESID_UNDER)) { | |
3750 | /* don't log under runs if fcp set... */ | |
3751 | if (vport->cfg_log_verbose & LOG_FCP) | |
3752 | logit = LOG_FCP_ERROR; | |
3753 | /* unless operator says so */ | |
3754 | if (vport->cfg_log_verbose & LOG_FCP_UNDER) | |
3755 | logit = LOG_FCP_UNDER; | |
3756 | } | |
c7743956 | 3757 | |
e8b62011 | 3758 | lpfc_printf_vlog(vport, KERN_WARNING, logit, |
e2a0a9d6 | 3759 | "9024 FCP command x%x failed: x%x SNS x%x x%x " |
e8b62011 JS |
3760 | "Data: x%x x%x x%x x%x x%x\n", |
3761 | cmnd->cmnd[0], scsi_status, | |
3762 | be32_to_cpu(*lp), be32_to_cpu(*(lp + 3)), resp_info, | |
3763 | be32_to_cpu(fcprsp->rspResId), | |
3764 | be32_to_cpu(fcprsp->rspSnsLen), | |
3765 | be32_to_cpu(fcprsp->rspRspLen), | |
3766 | fcprsp->rspInfo3); | |
dea3101e | 3767 | |
a0b4f78f | 3768 | scsi_set_resid(cmnd, 0); |
5afab6bb | 3769 | fcpDl = be32_to_cpu(fcpcmd->fcpDl); |
dea3101e | 3770 | if (resp_info & RESID_UNDER) { |
a0b4f78f | 3771 | scsi_set_resid(cmnd, be32_to_cpu(fcprsp->rspResId)); |
dea3101e | 3772 | |
73d91e50 | 3773 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP_UNDER, |
e2a0a9d6 | 3774 | "9025 FCP Read Underrun, expected %d, " |
e8b62011 | 3775 | "residual %d Data: x%x x%x x%x\n", |
5afab6bb | 3776 | fcpDl, |
e8b62011 JS |
3777 | scsi_get_resid(cmnd), fcpi_parm, cmnd->cmnd[0], |
3778 | cmnd->underflow); | |
dea3101e | 3779 | |
7054a606 JS |
3780 | /* |
3781 | * If there is an under run check if under run reported by | |
3782 | * storage array is same as the under run reported by HBA. | |
3783 | * If this is not same, there is a dropped frame. | |
3784 | */ | |
3785 | if ((cmnd->sc_data_direction == DMA_FROM_DEVICE) && | |
3786 | fcpi_parm && | |
a0b4f78f | 3787 | (scsi_get_resid(cmnd) != fcpi_parm)) { |
e8b62011 JS |
3788 | lpfc_printf_vlog(vport, KERN_WARNING, |
3789 | LOG_FCP | LOG_FCP_ERROR, | |
e2a0a9d6 | 3790 | "9026 FCP Read Check Error " |
e8b62011 | 3791 | "and Underrun Data: x%x x%x x%x x%x\n", |
5afab6bb | 3792 | fcpDl, |
e8b62011 JS |
3793 | scsi_get_resid(cmnd), fcpi_parm, |
3794 | cmnd->cmnd[0]); | |
a0b4f78f | 3795 | scsi_set_resid(cmnd, scsi_bufflen(cmnd)); |
7054a606 JS |
3796 | host_status = DID_ERROR; |
3797 | } | |
dea3101e JB |
3798 | /* |
3799 | * The cmnd->underflow is the minimum number of bytes that must | |
25985edc | 3800 | * be transferred for this command. Provided a sense condition |
dea3101e JB |
3801 | * is not present, make sure the actual amount transferred is at |
3802 | * least the underflow value or fail. | |
3803 | */ | |
3804 | if (!(resp_info & SNS_LEN_VALID) && | |
3805 | (scsi_status == SAM_STAT_GOOD) && | |
a0b4f78f FT |
3806 | (scsi_bufflen(cmnd) - scsi_get_resid(cmnd) |
3807 | < cmnd->underflow)) { | |
e8b62011 | 3808 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, |
e2a0a9d6 | 3809 | "9027 FCP command x%x residual " |
e8b62011 JS |
3810 | "underrun converted to error " |
3811 | "Data: x%x x%x x%x\n", | |
66dbfbe6 | 3812 | cmnd->cmnd[0], scsi_bufflen(cmnd), |
e8b62011 | 3813 | scsi_get_resid(cmnd), cmnd->underflow); |
dea3101e JB |
3814 | host_status = DID_ERROR; |
3815 | } | |
3816 | } else if (resp_info & RESID_OVER) { | |
e8b62011 | 3817 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
e2a0a9d6 | 3818 | "9028 FCP command x%x residual overrun error. " |
e4e74273 | 3819 | "Data: x%x x%x\n", cmnd->cmnd[0], |
e8b62011 | 3820 | scsi_bufflen(cmnd), scsi_get_resid(cmnd)); |
dea3101e JB |
3821 | host_status = DID_ERROR; |
3822 | ||
3823 | /* | |
3824 | * Check SLI validation that all the transfer was actually done | |
26373d23 | 3825 | * (fcpi_parm should be zero). Apply check only to reads. |
dea3101e | 3826 | */ |
5afab6bb | 3827 | } else if (fcpi_parm) { |
e8b62011 | 3828 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP | LOG_FCP_ERROR, |
5afab6bb | 3829 | "9029 FCP %s Check Error xri x%x Data: " |
eee8877e | 3830 | "x%x x%x x%x x%x x%x\n", |
5afab6bb JS |
3831 | ((cmnd->sc_data_direction == DMA_FROM_DEVICE) ? |
3832 | "Read" : "Write"), | |
3833 | ((phba->sli_rev == LPFC_SLI_REV4) ? | |
3834 | lpfc_cmd->cur_iocbq.sli4_xritag : | |
3835 | rsp_iocb->iocb.ulpContext), | |
3836 | fcpDl, be32_to_cpu(fcprsp->rspResId), | |
eee8877e | 3837 | fcpi_parm, cmnd->cmnd[0], scsi_status); |
5afab6bb JS |
3838 | |
3839 | /* There is some issue with the LPe12000 that causes it | |
3840 | * to miscalculate the fcpi_parm and falsely trip this | |
3841 | * recovery logic. Detect this case and don't error when true. | |
3842 | */ | |
3843 | if (fcpi_parm > fcpDl) | |
3844 | goto out; | |
3845 | ||
eee8877e JS |
3846 | switch (scsi_status) { |
3847 | case SAM_STAT_GOOD: | |
3848 | case SAM_STAT_CHECK_CONDITION: | |
3849 | /* Fabric dropped a data frame. Fail any successful | |
3850 | * command in which we detected dropped frames. | |
3851 | * A status of good or some check conditions could | |
3852 | * be considered a successful command. | |
3853 | */ | |
3854 | host_status = DID_ERROR; | |
3855 | break; | |
3856 | } | |
a0b4f78f | 3857 | scsi_set_resid(cmnd, scsi_bufflen(cmnd)); |
dea3101e JB |
3858 | } |
3859 | ||
3860 | out: | |
3861 | cmnd->result = ScsiResult(host_status, scsi_status); | |
ea2151b4 | 3862 | lpfc_send_scsi_error_event(vport->phba, vport, lpfc_cmd, rsp_iocb); |
dea3101e JB |
3863 | } |
3864 | ||
8b0dff14 JS |
3865 | /** |
3866 | * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution | |
3867 | * @phba: Pointer to HBA context object. | |
3868 | * | |
3869 | * This routine performs a roundrobin SCSI command to SLI4 FCP WQ index | |
3870 | * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock | |
3871 | * held. | |
3872 | * If scsi-mq is enabled, get the default block layer mapping of software queues | |
3873 | * to hardware queues. This information is saved in request tag. | |
3874 | * | |
3875 | * Return: index into SLI4 fast-path FCP queue index. | |
3876 | **/ | |
3877 | int lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba, | |
3878 | struct lpfc_scsi_buf *lpfc_cmd) | |
3879 | { | |
3880 | struct scsi_cmnd *cmnd = lpfc_cmd->pCmd; | |
3881 | struct lpfc_vector_map_info *cpup; | |
3882 | int chann, cpu; | |
3883 | uint32_t tag; | |
3884 | uint16_t hwq; | |
3885 | ||
05a05872 | 3886 | if (cmnd && shost_use_blk_mq(cmnd->device->host)) { |
8b0dff14 JS |
3887 | tag = blk_mq_unique_tag(cmnd->request); |
3888 | hwq = blk_mq_unique_tag_to_hwq(tag); | |
3889 | ||
3890 | return hwq; | |
3891 | } | |
3892 | ||
3893 | if (phba->cfg_fcp_io_sched == LPFC_FCP_SCHED_BY_CPU | |
3894 | && phba->cfg_fcp_io_channel > 1) { | |
3895 | cpu = smp_processor_id(); | |
3896 | if (cpu < phba->sli4_hba.num_present_cpu) { | |
3897 | cpup = phba->sli4_hba.cpu_map; | |
3898 | cpup += cpu; | |
3899 | return cpup->channel_id; | |
3900 | } | |
3901 | } | |
3902 | chann = atomic_add_return(1, &phba->fcp_qidx); | |
2ea259ee | 3903 | chann = chann % phba->cfg_fcp_io_channel; |
8b0dff14 JS |
3904 | return chann; |
3905 | } | |
3906 | ||
3907 | ||
9bad7671 | 3908 | /** |
3621a710 | 3909 | * lpfc_scsi_cmd_iocb_cmpl - Scsi cmnd IOCB completion routine |
9bad7671 JS |
3910 | * @phba: The Hba for which this call is being executed. |
3911 | * @pIocbIn: The command IOCBQ for the scsi cmnd. | |
3772a991 | 3912 | * @pIocbOut: The response IOCBQ for the scsi cmnd. |
9bad7671 JS |
3913 | * |
3914 | * This routine assigns scsi command result by looking into response IOCB | |
3915 | * status field appropriately. This routine handles QUEUE FULL condition as | |
3916 | * well by ramping down device queue depth. | |
3917 | **/ | |
dea3101e JB |
3918 | static void |
3919 | lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn, | |
3920 | struct lpfc_iocbq *pIocbOut) | |
3921 | { | |
3922 | struct lpfc_scsi_buf *lpfc_cmd = | |
3923 | (struct lpfc_scsi_buf *) pIocbIn->context1; | |
2e0fef85 | 3924 | struct lpfc_vport *vport = pIocbIn->vport; |
dea3101e JB |
3925 | struct lpfc_rport_data *rdata = lpfc_cmd->rdata; |
3926 | struct lpfc_nodelist *pnode = rdata->pnode; | |
75baf696 | 3927 | struct scsi_cmnd *cmd; |
5ffc266e | 3928 | int depth; |
fa61a54e | 3929 | unsigned long flags; |
ea2151b4 | 3930 | struct lpfc_fast_path_event *fast_path_evt; |
75baf696 | 3931 | struct Scsi_Host *shost; |
73d91e50 | 3932 | uint32_t logit = LOG_FCP; |
dea3101e | 3933 | |
895427bd JS |
3934 | phba->fc4ScsiIoCmpls++; |
3935 | ||
75baf696 | 3936 | /* Sanity check on return of outstanding command */ |
75baf696 | 3937 | cmd = lpfc_cmd->pCmd; |
c90261dc JS |
3938 | if (!cmd) |
3939 | return; | |
75baf696 JS |
3940 | shost = cmd->device->host; |
3941 | ||
e3d2b802 | 3942 | lpfc_cmd->result = (pIocbOut->iocb.un.ulpWord[4] & IOERR_PARAM_MASK); |
dea3101e | 3943 | lpfc_cmd->status = pIocbOut->iocb.ulpStatus; |
341af102 JS |
3944 | /* pick up SLI4 exhange busy status from HBA */ |
3945 | lpfc_cmd->exch_busy = pIocbOut->iocb_flag & LPFC_EXCHANGE_BUSY; | |
3946 | ||
9a6b09c0 JS |
3947 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
3948 | if (lpfc_cmd->prot_data_type) { | |
3949 | struct scsi_dif_tuple *src = NULL; | |
3950 | ||
3951 | src = (struct scsi_dif_tuple *)lpfc_cmd->prot_data_segment; | |
3952 | /* | |
3953 | * Used to restore any changes to protection | |
3954 | * data for error injection. | |
3955 | */ | |
3956 | switch (lpfc_cmd->prot_data_type) { | |
3957 | case LPFC_INJERR_REFTAG: | |
3958 | src->ref_tag = | |
3959 | lpfc_cmd->prot_data; | |
3960 | break; | |
3961 | case LPFC_INJERR_APPTAG: | |
3962 | src->app_tag = | |
3963 | (uint16_t)lpfc_cmd->prot_data; | |
3964 | break; | |
3965 | case LPFC_INJERR_GUARD: | |
3966 | src->guard_tag = | |
3967 | (uint16_t)lpfc_cmd->prot_data; | |
3968 | break; | |
3969 | default: | |
3970 | break; | |
3971 | } | |
3972 | ||
3973 | lpfc_cmd->prot_data = 0; | |
3974 | lpfc_cmd->prot_data_type = 0; | |
3975 | lpfc_cmd->prot_data_segment = NULL; | |
3976 | } | |
3977 | #endif | |
2ea259ee | 3978 | |
109f6ed0 JS |
3979 | if (pnode && NLP_CHK_NODE_ACT(pnode)) |
3980 | atomic_dec(&pnode->cmd_pending); | |
dea3101e JB |
3981 | |
3982 | if (lpfc_cmd->status) { | |
3983 | if (lpfc_cmd->status == IOSTAT_LOCAL_REJECT && | |
3984 | (lpfc_cmd->result & IOERR_DRVR_MASK)) | |
3985 | lpfc_cmd->status = IOSTAT_DRIVER_REJECT; | |
3986 | else if (lpfc_cmd->status >= IOSTAT_CNT) | |
3987 | lpfc_cmd->status = IOSTAT_DEFAULT; | |
aa1c7ee7 JS |
3988 | if (lpfc_cmd->status == IOSTAT_FCP_RSP_ERROR && |
3989 | !lpfc_cmd->fcp_rsp->rspStatus3 && | |
3990 | (lpfc_cmd->fcp_rsp->rspStatus2 & RESID_UNDER) && | |
3991 | !(vport->cfg_log_verbose & LOG_FCP_UNDER)) | |
73d91e50 JS |
3992 | logit = 0; |
3993 | else | |
3994 | logit = LOG_FCP | LOG_FCP_UNDER; | |
3995 | lpfc_printf_vlog(vport, KERN_WARNING, logit, | |
9cb78c16 | 3996 | "9030 FCP cmd x%x failed <%d/%lld> " |
5a0d80fc JS |
3997 | "status: x%x result: x%x " |
3998 | "sid: x%x did: x%x oxid: x%x " | |
3999 | "Data: x%x x%x\n", | |
73d91e50 JS |
4000 | cmd->cmnd[0], |
4001 | cmd->device ? cmd->device->id : 0xffff, | |
4002 | cmd->device ? cmd->device->lun : 0xffff, | |
4003 | lpfc_cmd->status, lpfc_cmd->result, | |
3bf41ba9 JS |
4004 | vport->fc_myDID, |
4005 | (pnode) ? pnode->nlp_DID : 0, | |
5a0d80fc JS |
4006 | phba->sli_rev == LPFC_SLI_REV4 ? |
4007 | lpfc_cmd->cur_iocbq.sli4_xritag : 0xffff, | |
73d91e50 JS |
4008 | pIocbOut->iocb.ulpContext, |
4009 | lpfc_cmd->cur_iocbq.iocb.ulpIoTag); | |
dea3101e JB |
4010 | |
4011 | switch (lpfc_cmd->status) { | |
4012 | case IOSTAT_FCP_RSP_ERROR: | |
4013 | /* Call FCP RSP handler to determine result */ | |
2e0fef85 | 4014 | lpfc_handle_fcp_err(vport, lpfc_cmd, pIocbOut); |
dea3101e JB |
4015 | break; |
4016 | case IOSTAT_NPORT_BSY: | |
4017 | case IOSTAT_FABRIC_BSY: | |
0f1f53a7 | 4018 | cmd->result = ScsiResult(DID_TRANSPORT_DISRUPTED, 0); |
ea2151b4 JS |
4019 | fast_path_evt = lpfc_alloc_fast_evt(phba); |
4020 | if (!fast_path_evt) | |
4021 | break; | |
4022 | fast_path_evt->un.fabric_evt.event_type = | |
4023 | FC_REG_FABRIC_EVENT; | |
4024 | fast_path_evt->un.fabric_evt.subcategory = | |
4025 | (lpfc_cmd->status == IOSTAT_NPORT_BSY) ? | |
4026 | LPFC_EVENT_PORT_BUSY : LPFC_EVENT_FABRIC_BUSY; | |
4027 | if (pnode && NLP_CHK_NODE_ACT(pnode)) { | |
4028 | memcpy(&fast_path_evt->un.fabric_evt.wwpn, | |
4029 | &pnode->nlp_portname, | |
4030 | sizeof(struct lpfc_name)); | |
4031 | memcpy(&fast_path_evt->un.fabric_evt.wwnn, | |
4032 | &pnode->nlp_nodename, | |
4033 | sizeof(struct lpfc_name)); | |
4034 | } | |
4035 | fast_path_evt->vport = vport; | |
4036 | fast_path_evt->work_evt.evt = | |
4037 | LPFC_EVT_FASTPATH_MGMT_EVT; | |
4038 | spin_lock_irqsave(&phba->hbalock, flags); | |
4039 | list_add_tail(&fast_path_evt->work_evt.evt_listp, | |
4040 | &phba->work_list); | |
4041 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
4042 | lpfc_worker_wake_up(phba); | |
dea3101e | 4043 | break; |
92d7f7b0 | 4044 | case IOSTAT_LOCAL_REJECT: |
1151e3ec | 4045 | case IOSTAT_REMOTE_STOP: |
ab56dc2e JS |
4046 | if (lpfc_cmd->result == IOERR_ELXSEC_KEY_UNWRAP_ERROR || |
4047 | lpfc_cmd->result == | |
4048 | IOERR_ELXSEC_KEY_UNWRAP_COMPARE_ERROR || | |
4049 | lpfc_cmd->result == IOERR_ELXSEC_CRYPTO_ERROR || | |
4050 | lpfc_cmd->result == | |
4051 | IOERR_ELXSEC_CRYPTO_COMPARE_ERROR) { | |
4052 | cmd->result = ScsiResult(DID_NO_CONNECT, 0); | |
4053 | break; | |
4054 | } | |
d7c255b2 | 4055 | if (lpfc_cmd->result == IOERR_INVALID_RPI || |
92d7f7b0 | 4056 | lpfc_cmd->result == IOERR_NO_RESOURCES || |
b92938b4 JS |
4057 | lpfc_cmd->result == IOERR_ABORT_REQUESTED || |
4058 | lpfc_cmd->result == IOERR_SLER_CMD_RCV_FAILURE) { | |
92d7f7b0 | 4059 | cmd->result = ScsiResult(DID_REQUEUE, 0); |
58da1ffb | 4060 | break; |
e2a0a9d6 | 4061 | } |
e2a0a9d6 JS |
4062 | if ((lpfc_cmd->result == IOERR_RX_DMA_FAILED || |
4063 | lpfc_cmd->result == IOERR_TX_DMA_FAILED) && | |
4064 | pIocbOut->iocb.unsli3.sli3_bg.bgstat) { | |
4065 | if (scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) { | |
4066 | /* | |
4067 | * This is a response for a BG enabled | |
4068 | * cmd. Parse BG error | |
4069 | */ | |
4070 | lpfc_parse_bg_err(phba, lpfc_cmd, | |
4071 | pIocbOut); | |
4072 | break; | |
4073 | } else { | |
4074 | lpfc_printf_vlog(vport, KERN_WARNING, | |
4075 | LOG_BG, | |
4076 | "9031 non-zero BGSTAT " | |
6a9c52cf | 4077 | "on unprotected cmd\n"); |
e2a0a9d6 JS |
4078 | } |
4079 | } | |
1151e3ec JS |
4080 | if ((lpfc_cmd->status == IOSTAT_REMOTE_STOP) |
4081 | && (phba->sli_rev == LPFC_SLI_REV4) | |
4082 | && (pnode && NLP_CHK_NODE_ACT(pnode))) { | |
4083 | /* This IO was aborted by the target, we don't | |
4084 | * know the rxid and because we did not send the | |
4085 | * ABTS we cannot generate and RRQ. | |
4086 | */ | |
4087 | lpfc_set_rrq_active(phba, pnode, | |
ee0f4fe1 JS |
4088 | lpfc_cmd->cur_iocbq.sli4_lxritag, |
4089 | 0, 0); | |
1151e3ec | 4090 | } |
e2a0a9d6 | 4091 | /* else: fall through */ |
dea3101e JB |
4092 | default: |
4093 | cmd->result = ScsiResult(DID_ERROR, 0); | |
4094 | break; | |
4095 | } | |
4096 | ||
58da1ffb | 4097 | if (!pnode || !NLP_CHK_NODE_ACT(pnode) |
19a7b4ae | 4098 | || (pnode->nlp_state != NLP_STE_MAPPED_NODE)) |
0f1f53a7 JS |
4099 | cmd->result = ScsiResult(DID_TRANSPORT_DISRUPTED, |
4100 | SAM_STAT_BUSY); | |
ab56dc2e | 4101 | } else |
dea3101e | 4102 | cmd->result = ScsiResult(DID_OK, 0); |
dea3101e JB |
4103 | |
4104 | if (cmd->result || lpfc_cmd->fcp_rsp->rspSnsLen) { | |
4105 | uint32_t *lp = (uint32_t *)cmd->sense_buffer; | |
4106 | ||
e8b62011 | 4107 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, |
9cb78c16 | 4108 | "0710 Iodone <%d/%llu> cmd %p, error " |
e8b62011 JS |
4109 | "x%x SNS x%x x%x Data: x%x x%x\n", |
4110 | cmd->device->id, cmd->device->lun, cmd, | |
4111 | cmd->result, *lp, *(lp + 3), cmd->retries, | |
4112 | scsi_get_resid(cmd)); | |
dea3101e JB |
4113 | } |
4114 | ||
ea2151b4 | 4115 | lpfc_update_stats(phba, lpfc_cmd); |
977b5a0a JS |
4116 | if (vport->cfg_max_scsicmpl_time && |
4117 | time_after(jiffies, lpfc_cmd->start_time + | |
4118 | msecs_to_jiffies(vport->cfg_max_scsicmpl_time))) { | |
a257bf90 | 4119 | spin_lock_irqsave(shost->host_lock, flags); |
109f6ed0 JS |
4120 | if (pnode && NLP_CHK_NODE_ACT(pnode)) { |
4121 | if (pnode->cmd_qdepth > | |
4122 | atomic_read(&pnode->cmd_pending) && | |
4123 | (atomic_read(&pnode->cmd_pending) > | |
4124 | LPFC_MIN_TGT_QDEPTH) && | |
4125 | ((cmd->cmnd[0] == READ_10) || | |
4126 | (cmd->cmnd[0] == WRITE_10))) | |
4127 | pnode->cmd_qdepth = | |
4128 | atomic_read(&pnode->cmd_pending); | |
4129 | ||
4130 | pnode->last_change_time = jiffies; | |
4131 | } | |
a257bf90 | 4132 | spin_unlock_irqrestore(shost->host_lock, flags); |
109f6ed0 | 4133 | } else if (pnode && NLP_CHK_NODE_ACT(pnode)) { |
7dc517df | 4134 | if ((pnode->cmd_qdepth < vport->cfg_tgt_queue_depth) && |
977b5a0a | 4135 | time_after(jiffies, pnode->last_change_time + |
109f6ed0 | 4136 | msecs_to_jiffies(LPFC_TGTQ_INTERVAL))) { |
a257bf90 | 4137 | spin_lock_irqsave(shost->host_lock, flags); |
7dc517df JS |
4138 | depth = pnode->cmd_qdepth * LPFC_TGTQ_RAMPUP_PCENT |
4139 | / 100; | |
4140 | depth = depth ? depth : 1; | |
4141 | pnode->cmd_qdepth += depth; | |
4142 | if (pnode->cmd_qdepth > vport->cfg_tgt_queue_depth) | |
4143 | pnode->cmd_qdepth = vport->cfg_tgt_queue_depth; | |
109f6ed0 | 4144 | pnode->last_change_time = jiffies; |
a257bf90 | 4145 | spin_unlock_irqrestore(shost->host_lock, flags); |
109f6ed0 | 4146 | } |
977b5a0a JS |
4147 | } |
4148 | ||
1dcb58e5 | 4149 | lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd); |
a257bf90 | 4150 | |
876dd7d0 | 4151 | spin_lock_irqsave(&phba->hbalock, flags); |
92e3af66 | 4152 | lpfc_cmd->pCmd = NULL; |
876dd7d0 | 4153 | spin_unlock_irqrestore(&phba->hbalock, flags); |
92e3af66 | 4154 | |
89533e9b JS |
4155 | /* The sdev is not guaranteed to be valid post scsi_done upcall. */ |
4156 | cmd->scsi_done(cmd); | |
4157 | ||
fa61a54e JS |
4158 | /* |
4159 | * If there is a thread waiting for command completion | |
4160 | * wake up the thread. | |
4161 | */ | |
a257bf90 | 4162 | spin_lock_irqsave(shost->host_lock, flags); |
fa61a54e JS |
4163 | if (lpfc_cmd->waitq) |
4164 | wake_up(lpfc_cmd->waitq); | |
a257bf90 | 4165 | spin_unlock_irqrestore(shost->host_lock, flags); |
fa61a54e | 4166 | |
0bd4ca25 | 4167 | lpfc_release_scsi_buf(phba, lpfc_cmd); |
dea3101e JB |
4168 | } |
4169 | ||
8b2564ec AK |
4170 | /** |
4171 | * lpfc_fcpcmd_to_iocb - copy the fcp_cmd data into the IOCB | |
4172 | * @data: A pointer to the immediate command data portion of the IOCB. | |
4173 | * @fcp_cmnd: The FCP Command that is provided by the SCSI layer. | |
4174 | * | |
4175 | * The routine copies the entire FCP command from @fcp_cmnd to @data while | |
4176 | * byte swapping the data to big endian format for transmission on the wire. | |
4177 | **/ | |
4178 | static void | |
4179 | lpfc_fcpcmd_to_iocb(uint8_t *data, struct fcp_cmnd *fcp_cmnd) | |
4180 | { | |
4181 | int i, j; | |
4182 | for (i = 0, j = 0; i < sizeof(struct fcp_cmnd); | |
4183 | i += sizeof(uint32_t), j++) { | |
4184 | ((uint32_t *)data)[j] = cpu_to_be32(((uint32_t *)fcp_cmnd)[j]); | |
4185 | } | |
4186 | } | |
4187 | ||
9bad7671 | 4188 | /** |
f1126688 | 4189 | * lpfc_scsi_prep_cmnd - Wrapper func for convert scsi cmnd to FCP info unit |
9bad7671 JS |
4190 | * @vport: The virtual port for which this call is being executed. |
4191 | * @lpfc_cmd: The scsi command which needs to send. | |
4192 | * @pnode: Pointer to lpfc_nodelist. | |
4193 | * | |
4194 | * This routine initializes fcp_cmnd and iocb data structure from scsi command | |
3772a991 | 4195 | * to transfer for device with SLI3 interface spec. |
9bad7671 | 4196 | **/ |
dea3101e | 4197 | static void |
f1126688 | 4198 | lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, |
2e0fef85 | 4199 | struct lpfc_nodelist *pnode) |
dea3101e | 4200 | { |
2e0fef85 | 4201 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
4202 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; |
4203 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
4204 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; | |
4205 | struct lpfc_iocbq *piocbq = &(lpfc_cmd->cur_iocbq); | |
4206 | int datadir = scsi_cmnd->sc_data_direction; | |
027140ea JS |
4207 | uint8_t *ptr; |
4208 | bool sli4; | |
98bbf5f7 | 4209 | uint32_t fcpdl; |
dea3101e | 4210 | |
58da1ffb JS |
4211 | if (!pnode || !NLP_CHK_NODE_ACT(pnode)) |
4212 | return; | |
4213 | ||
dea3101e | 4214 | lpfc_cmd->fcp_rsp->rspSnsLen = 0; |
69859dc4 JSEC |
4215 | /* clear task management bits */ |
4216 | lpfc_cmd->fcp_cmnd->fcpCntl2 = 0; | |
dea3101e | 4217 | |
91886523 JSEC |
4218 | int_to_scsilun(lpfc_cmd->pCmd->device->lun, |
4219 | &lpfc_cmd->fcp_cmnd->fcp_lun); | |
dea3101e | 4220 | |
027140ea JS |
4221 | ptr = &fcp_cmnd->fcpCdb[0]; |
4222 | memcpy(ptr, scsi_cmnd->cmnd, scsi_cmnd->cmd_len); | |
4223 | if (scsi_cmnd->cmd_len < LPFC_FCP_CDB_LEN) { | |
4224 | ptr += scsi_cmnd->cmd_len; | |
4225 | memset(ptr, 0, (LPFC_FCP_CDB_LEN - scsi_cmnd->cmd_len)); | |
4226 | } | |
4227 | ||
50668633 | 4228 | fcp_cmnd->fcpCntl1 = SIMPLE_Q; |
dea3101e | 4229 | |
027140ea | 4230 | sli4 = (phba->sli_rev == LPFC_SLI_REV4); |
6acb3481 | 4231 | piocbq->iocb.un.fcpi.fcpi_XRdy = 0; |
027140ea | 4232 | |
dea3101e JB |
4233 | /* |
4234 | * There are three possibilities here - use scatter-gather segment, use | |
4235 | * the single mapping, or neither. Start the lpfc command prep by | |
4236 | * bumping the bpl beyond the fcp_cmnd and fcp_rsp regions to the first | |
4237 | * data bde entry. | |
4238 | */ | |
a0b4f78f | 4239 | if (scsi_sg_count(scsi_cmnd)) { |
dea3101e JB |
4240 | if (datadir == DMA_TO_DEVICE) { |
4241 | iocb_cmd->ulpCommand = CMD_FCP_IWRITE64_CR; | |
182ba753 | 4242 | iocb_cmd->ulpPU = PARM_READ_CHECK; |
3cb01c57 JS |
4243 | if (vport->cfg_first_burst_size && |
4244 | (pnode->nlp_flag & NLP_FIRSTBURST)) { | |
98bbf5f7 JS |
4245 | fcpdl = scsi_bufflen(scsi_cmnd); |
4246 | if (fcpdl < vport->cfg_first_burst_size) | |
4247 | piocbq->iocb.un.fcpi.fcpi_XRdy = fcpdl; | |
4248 | else | |
4249 | piocbq->iocb.un.fcpi.fcpi_XRdy = | |
4250 | vport->cfg_first_burst_size; | |
3cb01c57 | 4251 | } |
dea3101e | 4252 | fcp_cmnd->fcpCntl3 = WRITE_DATA; |
895427bd | 4253 | phba->fc4ScsiOutputRequests++; |
dea3101e JB |
4254 | } else { |
4255 | iocb_cmd->ulpCommand = CMD_FCP_IREAD64_CR; | |
4256 | iocb_cmd->ulpPU = PARM_READ_CHECK; | |
dea3101e | 4257 | fcp_cmnd->fcpCntl3 = READ_DATA; |
895427bd | 4258 | phba->fc4ScsiInputRequests++; |
dea3101e JB |
4259 | } |
4260 | } else { | |
4261 | iocb_cmd->ulpCommand = CMD_FCP_ICMND64_CR; | |
4262 | iocb_cmd->un.fcpi.fcpi_parm = 0; | |
4263 | iocb_cmd->ulpPU = 0; | |
4264 | fcp_cmnd->fcpCntl3 = 0; | |
895427bd | 4265 | phba->fc4ScsiControlRequests++; |
dea3101e | 4266 | } |
8b2564ec AK |
4267 | if (phba->sli_rev == 3 && |
4268 | !(phba->sli3_options & LPFC_SLI3_BG_ENABLED)) | |
4269 | lpfc_fcpcmd_to_iocb(iocb_cmd->unsli3.fcp_ext.icd, fcp_cmnd); | |
dea3101e JB |
4270 | /* |
4271 | * Finish initializing those IOCB fields that are independent | |
4272 | * of the scsi_cmnd request_buffer | |
4273 | */ | |
4274 | piocbq->iocb.ulpContext = pnode->nlp_rpi; | |
027140ea | 4275 | if (sli4) |
6d368e53 JS |
4276 | piocbq->iocb.ulpContext = |
4277 | phba->sli4_hba.rpi_ids[pnode->nlp_rpi]; | |
dea3101e JB |
4278 | if (pnode->nlp_fcp_info & NLP_FCP_2_DEVICE) |
4279 | piocbq->iocb.ulpFCP2Rcvy = 1; | |
09372820 JS |
4280 | else |
4281 | piocbq->iocb.ulpFCP2Rcvy = 0; | |
dea3101e JB |
4282 | |
4283 | piocbq->iocb.ulpClass = (pnode->nlp_fcp_info & 0x0f); | |
4284 | piocbq->context1 = lpfc_cmd; | |
4285 | piocbq->iocb_cmpl = lpfc_scsi_cmd_iocb_cmpl; | |
4286 | piocbq->iocb.ulpTimeout = lpfc_cmd->timeout; | |
2e0fef85 | 4287 | piocbq->vport = vport; |
dea3101e JB |
4288 | } |
4289 | ||
da0436e9 | 4290 | /** |
6d368e53 | 4291 | * lpfc_scsi_prep_task_mgmt_cmd - Convert SLI3 scsi TM cmd to FCP info unit |
9bad7671 JS |
4292 | * @vport: The virtual port for which this call is being executed. |
4293 | * @lpfc_cmd: Pointer to lpfc_scsi_buf data structure. | |
4294 | * @lun: Logical unit number. | |
4295 | * @task_mgmt_cmd: SCSI task management command. | |
4296 | * | |
3772a991 JS |
4297 | * This routine creates FCP information unit corresponding to @task_mgmt_cmd |
4298 | * for device with SLI-3 interface spec. | |
9bad7671 JS |
4299 | * |
4300 | * Return codes: | |
4301 | * 0 - Error | |
4302 | * 1 - Success | |
4303 | **/ | |
dea3101e | 4304 | static int |
f1126688 | 4305 | lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_vport *vport, |
dea3101e | 4306 | struct lpfc_scsi_buf *lpfc_cmd, |
9cb78c16 | 4307 | uint64_t lun, |
dea3101e JB |
4308 | uint8_t task_mgmt_cmd) |
4309 | { | |
dea3101e JB |
4310 | struct lpfc_iocbq *piocbq; |
4311 | IOCB_t *piocb; | |
4312 | struct fcp_cmnd *fcp_cmnd; | |
0b18ac42 | 4313 | struct lpfc_rport_data *rdata = lpfc_cmd->rdata; |
dea3101e JB |
4314 | struct lpfc_nodelist *ndlp = rdata->pnode; |
4315 | ||
58da1ffb JS |
4316 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || |
4317 | ndlp->nlp_state != NLP_STE_MAPPED_NODE) | |
dea3101e | 4318 | return 0; |
dea3101e | 4319 | |
dea3101e | 4320 | piocbq = &(lpfc_cmd->cur_iocbq); |
2e0fef85 JS |
4321 | piocbq->vport = vport; |
4322 | ||
dea3101e JB |
4323 | piocb = &piocbq->iocb; |
4324 | ||
4325 | fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
34b02dcd JS |
4326 | /* Clear out any old data in the FCP command area */ |
4327 | memset(fcp_cmnd, 0, sizeof(struct fcp_cmnd)); | |
4328 | int_to_scsilun(lun, &fcp_cmnd->fcp_lun); | |
dea3101e | 4329 | fcp_cmnd->fcpCntl2 = task_mgmt_cmd; |
e2a0a9d6 JS |
4330 | if (vport->phba->sli_rev == 3 && |
4331 | !(vport->phba->sli3_options & LPFC_SLI3_BG_ENABLED)) | |
34b02dcd | 4332 | lpfc_fcpcmd_to_iocb(piocb->unsli3.fcp_ext.icd, fcp_cmnd); |
dea3101e | 4333 | piocb->ulpCommand = CMD_FCP_ICMND64_CR; |
dea3101e | 4334 | piocb->ulpContext = ndlp->nlp_rpi; |
6d368e53 JS |
4335 | if (vport->phba->sli_rev == LPFC_SLI_REV4) { |
4336 | piocb->ulpContext = | |
4337 | vport->phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; | |
4338 | } | |
53151bbb | 4339 | piocb->ulpFCP2Rcvy = (ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) ? 1 : 0; |
dea3101e | 4340 | piocb->ulpClass = (ndlp->nlp_fcp_info & 0x0f); |
f9226c20 JS |
4341 | piocb->ulpPU = 0; |
4342 | piocb->un.fcpi.fcpi_parm = 0; | |
dea3101e JB |
4343 | |
4344 | /* ulpTimeout is only one byte */ | |
4345 | if (lpfc_cmd->timeout > 0xff) { | |
4346 | /* | |
4347 | * Do not timeout the command at the firmware level. | |
4348 | * The driver will provide the timeout mechanism. | |
4349 | */ | |
4350 | piocb->ulpTimeout = 0; | |
f1126688 | 4351 | } else |
dea3101e | 4352 | piocb->ulpTimeout = lpfc_cmd->timeout; |
da0436e9 | 4353 | |
f1126688 JS |
4354 | if (vport->phba->sli_rev == LPFC_SLI_REV4) |
4355 | lpfc_sli4_set_rsp_sgl_last(vport->phba, lpfc_cmd); | |
3772a991 | 4356 | |
f1126688 | 4357 | return 1; |
3772a991 JS |
4358 | } |
4359 | ||
4360 | /** | |
25985edc | 4361 | * lpfc_scsi_api_table_setup - Set up scsi api function jump table |
3772a991 JS |
4362 | * @phba: The hba struct for which this call is being executed. |
4363 | * @dev_grp: The HBA PCI-Device group number. | |
4364 | * | |
4365 | * This routine sets up the SCSI interface API function jump table in @phba | |
4366 | * struct. | |
4367 | * Returns: 0 - success, -ENODEV - failure. | |
4368 | **/ | |
4369 | int | |
4370 | lpfc_scsi_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) | |
4371 | { | |
4372 | ||
f1126688 JS |
4373 | phba->lpfc_scsi_unprep_dma_buf = lpfc_scsi_unprep_dma_buf; |
4374 | phba->lpfc_scsi_prep_cmnd = lpfc_scsi_prep_cmnd; | |
f1126688 | 4375 | |
3772a991 JS |
4376 | switch (dev_grp) { |
4377 | case LPFC_PCI_DEV_LP: | |
4378 | phba->lpfc_new_scsi_buf = lpfc_new_scsi_buf_s3; | |
4379 | phba->lpfc_scsi_prep_dma_buf = lpfc_scsi_prep_dma_buf_s3; | |
acd6859b | 4380 | phba->lpfc_bg_scsi_prep_dma_buf = lpfc_bg_scsi_prep_dma_buf_s3; |
3772a991 | 4381 | phba->lpfc_release_scsi_buf = lpfc_release_scsi_buf_s3; |
19ca7609 | 4382 | phba->lpfc_get_scsi_buf = lpfc_get_scsi_buf_s3; |
3772a991 | 4383 | break; |
da0436e9 JS |
4384 | case LPFC_PCI_DEV_OC: |
4385 | phba->lpfc_new_scsi_buf = lpfc_new_scsi_buf_s4; | |
4386 | phba->lpfc_scsi_prep_dma_buf = lpfc_scsi_prep_dma_buf_s4; | |
acd6859b | 4387 | phba->lpfc_bg_scsi_prep_dma_buf = lpfc_bg_scsi_prep_dma_buf_s4; |
da0436e9 | 4388 | phba->lpfc_release_scsi_buf = lpfc_release_scsi_buf_s4; |
19ca7609 | 4389 | phba->lpfc_get_scsi_buf = lpfc_get_scsi_buf_s4; |
da0436e9 | 4390 | break; |
3772a991 JS |
4391 | default: |
4392 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
4393 | "1418 Invalid HBA PCI-device group: 0x%x\n", | |
4394 | dev_grp); | |
4395 | return -ENODEV; | |
4396 | break; | |
4397 | } | |
3772a991 | 4398 | phba->lpfc_rampdown_queue_depth = lpfc_rampdown_queue_depth; |
84d1b006 | 4399 | phba->lpfc_scsi_cmd_iocb_cmpl = lpfc_scsi_cmd_iocb_cmpl; |
3772a991 JS |
4400 | return 0; |
4401 | } | |
4402 | ||
9bad7671 | 4403 | /** |
3621a710 | 4404 | * lpfc_taskmgmt_def_cmpl - IOCB completion routine for task management command |
9bad7671 JS |
4405 | * @phba: The Hba for which this call is being executed. |
4406 | * @cmdiocbq: Pointer to lpfc_iocbq data structure. | |
4407 | * @rspiocbq: Pointer to lpfc_iocbq data structure. | |
4408 | * | |
4409 | * This routine is IOCB completion routine for device reset and target reset | |
4410 | * routine. This routine release scsi buffer associated with lpfc_cmd. | |
4411 | **/ | |
7054a606 JS |
4412 | static void |
4413 | lpfc_tskmgmt_def_cmpl(struct lpfc_hba *phba, | |
4414 | struct lpfc_iocbq *cmdiocbq, | |
4415 | struct lpfc_iocbq *rspiocbq) | |
4416 | { | |
4417 | struct lpfc_scsi_buf *lpfc_cmd = | |
4418 | (struct lpfc_scsi_buf *) cmdiocbq->context1; | |
4419 | if (lpfc_cmd) | |
4420 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
4421 | return; | |
4422 | } | |
4423 | ||
9bad7671 | 4424 | /** |
3621a710 | 4425 | * lpfc_info - Info entry point of scsi_host_template data structure |
9bad7671 JS |
4426 | * @host: The scsi host for which this call is being executed. |
4427 | * | |
4428 | * This routine provides module information about hba. | |
4429 | * | |
4430 | * Reutrn code: | |
4431 | * Pointer to char - Success. | |
4432 | **/ | |
dea3101e JB |
4433 | const char * |
4434 | lpfc_info(struct Scsi_Host *host) | |
4435 | { | |
2e0fef85 JS |
4436 | struct lpfc_vport *vport = (struct lpfc_vport *) host->hostdata; |
4437 | struct lpfc_hba *phba = vport->phba; | |
8b68cd52 | 4438 | int len, link_speed = 0; |
dea3101e JB |
4439 | static char lpfcinfobuf[384]; |
4440 | ||
4441 | memset(lpfcinfobuf,0,384); | |
4442 | if (phba && phba->pcidev){ | |
4443 | strncpy(lpfcinfobuf, phba->ModelDesc, 256); | |
4444 | len = strlen(lpfcinfobuf); | |
4445 | snprintf(lpfcinfobuf + len, | |
4446 | 384-len, | |
4447 | " on PCI bus %02x device %02x irq %d", | |
4448 | phba->pcidev->bus->number, | |
4449 | phba->pcidev->devfn, | |
4450 | phba->pcidev->irq); | |
4451 | len = strlen(lpfcinfobuf); | |
4452 | if (phba->Port[0]) { | |
4453 | snprintf(lpfcinfobuf + len, | |
4454 | 384-len, | |
4455 | " port %s", | |
4456 | phba->Port); | |
4457 | } | |
65467b6b | 4458 | len = strlen(lpfcinfobuf); |
a085e87c | 4459 | link_speed = lpfc_sli_port_speed_get(phba); |
8b68cd52 JS |
4460 | if (link_speed != 0) |
4461 | snprintf(lpfcinfobuf + len, 384-len, | |
4462 | " Logical Link Speed: %d Mbps", link_speed); | |
dea3101e JB |
4463 | } |
4464 | return lpfcinfobuf; | |
4465 | } | |
4466 | ||
9bad7671 | 4467 | /** |
3621a710 | 4468 | * lpfc_poll_rearm_time - Routine to modify fcp_poll timer of hba |
9bad7671 JS |
4469 | * @phba: The Hba for which this call is being executed. |
4470 | * | |
4471 | * This routine modifies fcp_poll_timer field of @phba by cfg_poll_tmo. | |
4472 | * The default value of cfg_poll_tmo is 10 milliseconds. | |
4473 | **/ | |
875fbdfe JSEC |
4474 | static __inline__ void lpfc_poll_rearm_timer(struct lpfc_hba * phba) |
4475 | { | |
4476 | unsigned long poll_tmo_expires = | |
4477 | (jiffies + msecs_to_jiffies(phba->cfg_poll_tmo)); | |
4478 | ||
895427bd | 4479 | if (!list_empty(&phba->sli.sli3_ring[LPFC_FCP_RING].txcmplq)) |
875fbdfe JSEC |
4480 | mod_timer(&phba->fcp_poll_timer, |
4481 | poll_tmo_expires); | |
4482 | } | |
4483 | ||
9bad7671 | 4484 | /** |
3621a710 | 4485 | * lpfc_poll_start_timer - Routine to start fcp_poll_timer of HBA |
9bad7671 JS |
4486 | * @phba: The Hba for which this call is being executed. |
4487 | * | |
4488 | * This routine starts the fcp_poll_timer of @phba. | |
4489 | **/ | |
875fbdfe JSEC |
4490 | void lpfc_poll_start_timer(struct lpfc_hba * phba) |
4491 | { | |
4492 | lpfc_poll_rearm_timer(phba); | |
4493 | } | |
4494 | ||
9bad7671 | 4495 | /** |
3621a710 | 4496 | * lpfc_poll_timeout - Restart polling timer |
9bad7671 JS |
4497 | * @ptr: Map to lpfc_hba data structure pointer. |
4498 | * | |
4499 | * This routine restarts fcp_poll timer, when FCP ring polling is enable | |
4500 | * and FCP Ring interrupt is disable. | |
4501 | **/ | |
4502 | ||
875fbdfe JSEC |
4503 | void lpfc_poll_timeout(unsigned long ptr) |
4504 | { | |
2e0fef85 | 4505 | struct lpfc_hba *phba = (struct lpfc_hba *) ptr; |
875fbdfe JSEC |
4506 | |
4507 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { | |
45ed1190 | 4508 | lpfc_sli_handle_fast_ring_event(phba, |
895427bd | 4509 | &phba->sli.sli3_ring[LPFC_FCP_RING], HA_R0RE_REQ); |
45ed1190 | 4510 | |
875fbdfe JSEC |
4511 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
4512 | lpfc_poll_rearm_timer(phba); | |
4513 | } | |
875fbdfe JSEC |
4514 | } |
4515 | ||
9bad7671 | 4516 | /** |
3621a710 | 4517 | * lpfc_queuecommand - scsi_host_template queuecommand entry point |
9bad7671 JS |
4518 | * @cmnd: Pointer to scsi_cmnd data structure. |
4519 | * @done: Pointer to done routine. | |
4520 | * | |
4521 | * Driver registers this routine to scsi midlayer to submit a @cmd to process. | |
4522 | * This routine prepares an IOCB from scsi command and provides to firmware. | |
4523 | * The @done callback is invoked after driver finished processing the command. | |
4524 | * | |
4525 | * Return value : | |
4526 | * 0 - Success | |
4527 | * SCSI_MLQUEUE_HOST_BUSY - Block all devices served by this host temporarily. | |
4528 | **/ | |
dea3101e | 4529 | static int |
b9a7c631 | 4530 | lpfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) |
dea3101e | 4531 | { |
2e0fef85 JS |
4532 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
4533 | struct lpfc_hba *phba = vport->phba; | |
1ba981fd | 4534 | struct lpfc_rport_data *rdata; |
1c6f4ef5 | 4535 | struct lpfc_nodelist *ndlp; |
0bd4ca25 | 4536 | struct lpfc_scsi_buf *lpfc_cmd; |
19a7b4ae | 4537 | struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); |
19a7b4ae | 4538 | int err; |
dea3101e | 4539 | |
1ba981fd | 4540 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
19a7b4ae JSEC |
4541 | err = fc_remote_port_chkready(rport); |
4542 | if (err) { | |
4543 | cmnd->result = err; | |
dea3101e JB |
4544 | goto out_fail_command; |
4545 | } | |
1c6f4ef5 | 4546 | ndlp = rdata->pnode; |
dea3101e | 4547 | |
bf08611b | 4548 | if ((scsi_get_prot_op(cmnd) != SCSI_PROT_NORMAL) && |
acd6859b | 4549 | (!(phba->sli3_options & LPFC_SLI3_BG_ENABLED))) { |
e2a0a9d6 | 4550 | |
6a9c52cf JS |
4551 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
4552 | "9058 BLKGRD: ERROR: rcvd protected cmd:%02x" | |
4553 | " op:%02x str=%s without registering for" | |
4554 | " BlockGuard - Rejecting command\n", | |
e2a0a9d6 JS |
4555 | cmnd->cmnd[0], scsi_get_prot_op(cmnd), |
4556 | dif_op_str[scsi_get_prot_op(cmnd)]); | |
4557 | goto out_fail_command; | |
4558 | } | |
4559 | ||
dea3101e | 4560 | /* |
19a7b4ae JSEC |
4561 | * Catch race where our node has transitioned, but the |
4562 | * transport is still transitioning. | |
dea3101e | 4563 | */ |
6b415f5d JS |
4564 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) |
4565 | goto out_tgt_busy; | |
7dc517df | 4566 | if (atomic_read(&ndlp->cmd_pending) >= ndlp->cmd_qdepth) |
3496343d | 4567 | goto out_tgt_busy; |
a93ce024 | 4568 | |
19ca7609 | 4569 | lpfc_cmd = lpfc_get_scsi_buf(phba, ndlp); |
dea3101e | 4570 | if (lpfc_cmd == NULL) { |
eaf15d5b | 4571 | lpfc_rampdown_queue_depth(phba); |
92d7f7b0 | 4572 | |
895427bd | 4573 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP_ERROR, |
e8b62011 JS |
4574 | "0707 driver's buffer pool is empty, " |
4575 | "IO busied\n"); | |
dea3101e JB |
4576 | goto out_host_busy; |
4577 | } | |
4578 | ||
4579 | /* | |
4580 | * Store the midlayer's command structure for the completion phase | |
4581 | * and complete the command initialization. | |
4582 | */ | |
4583 | lpfc_cmd->pCmd = cmnd; | |
4584 | lpfc_cmd->rdata = rdata; | |
4585 | lpfc_cmd->timeout = 0; | |
977b5a0a | 4586 | lpfc_cmd->start_time = jiffies; |
dea3101e | 4587 | cmnd->host_scribble = (unsigned char *)lpfc_cmd; |
dea3101e | 4588 | |
e2a0a9d6 | 4589 | if (scsi_get_prot_op(cmnd) != SCSI_PROT_NORMAL) { |
6a9c52cf | 4590 | if (vport->phba->cfg_enable_bg) { |
737d4248 JS |
4591 | lpfc_printf_vlog(vport, |
4592 | KERN_INFO, LOG_SCSI_CMD, | |
2613470a JS |
4593 | "9033 BLKGRD: rcvd %s cmd:x%x " |
4594 | "sector x%llx cnt %u pt %x\n", | |
4595 | dif_op_str[scsi_get_prot_op(cmnd)], | |
4596 | cmnd->cmnd[0], | |
4597 | (unsigned long long)scsi_get_lba(cmnd), | |
4598 | blk_rq_sectors(cmnd->request), | |
4599 | (cmnd->cmnd[1]>>5)); | |
6a9c52cf | 4600 | } |
e2a0a9d6 JS |
4601 | err = lpfc_bg_scsi_prep_dma_buf(phba, lpfc_cmd); |
4602 | } else { | |
6a9c52cf | 4603 | if (vport->phba->cfg_enable_bg) { |
737d4248 JS |
4604 | lpfc_printf_vlog(vport, |
4605 | KERN_INFO, LOG_SCSI_CMD, | |
2613470a JS |
4606 | "9038 BLKGRD: rcvd PROT_NORMAL cmd: " |
4607 | "x%x sector x%llx cnt %u pt %x\n", | |
4608 | cmnd->cmnd[0], | |
4609 | (unsigned long long)scsi_get_lba(cmnd), | |
9a6b09c0 | 4610 | blk_rq_sectors(cmnd->request), |
2613470a | 4611 | (cmnd->cmnd[1]>>5)); |
6a9c52cf | 4612 | } |
e2a0a9d6 JS |
4613 | err = lpfc_scsi_prep_dma_buf(phba, lpfc_cmd); |
4614 | } | |
4615 | ||
dea3101e JB |
4616 | if (err) |
4617 | goto out_host_busy_free_buf; | |
4618 | ||
2e0fef85 | 4619 | lpfc_scsi_prep_cmnd(vport, lpfc_cmd, ndlp); |
dea3101e | 4620 | |
977b5a0a | 4621 | atomic_inc(&ndlp->cmd_pending); |
3772a991 | 4622 | err = lpfc_sli_issue_iocb(phba, LPFC_FCP_RING, |
92d7f7b0 | 4623 | &lpfc_cmd->cur_iocbq, SLI_IOCB_RET_IOCB); |
eaf15d5b JS |
4624 | if (err) { |
4625 | atomic_dec(&ndlp->cmd_pending); | |
76f96b6d JS |
4626 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, |
4627 | "3376 FCP could not issue IOCB err %x" | |
9cb78c16 | 4628 | "FCP cmd x%x <%d/%llu> " |
76f96b6d JS |
4629 | "sid: x%x did: x%x oxid: x%x " |
4630 | "Data: x%x x%x x%x x%x\n", | |
4631 | err, cmnd->cmnd[0], | |
4632 | cmnd->device ? cmnd->device->id : 0xffff, | |
9cb78c16 | 4633 | cmnd->device ? cmnd->device->lun : (u64) -1, |
76f96b6d JS |
4634 | vport->fc_myDID, ndlp->nlp_DID, |
4635 | phba->sli_rev == LPFC_SLI_REV4 ? | |
4636 | lpfc_cmd->cur_iocbq.sli4_xritag : 0xffff, | |
4637 | lpfc_cmd->cur_iocbq.iocb.ulpContext, | |
4638 | lpfc_cmd->cur_iocbq.iocb.ulpIoTag, | |
4639 | lpfc_cmd->cur_iocbq.iocb.ulpTimeout, | |
4640 | (uint32_t) | |
4641 | (cmnd->request->timeout / 1000)); | |
4642 | ||
4643 | ||
dea3101e | 4644 | goto out_host_busy_free_buf; |
eaf15d5b | 4645 | } |
875fbdfe | 4646 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { |
45ed1190 | 4647 | lpfc_sli_handle_fast_ring_event(phba, |
895427bd | 4648 | &phba->sli.sli3_ring[LPFC_FCP_RING], HA_R0RE_REQ); |
45ed1190 | 4649 | |
875fbdfe JSEC |
4650 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
4651 | lpfc_poll_rearm_timer(phba); | |
4652 | } | |
4653 | ||
dea3101e JB |
4654 | return 0; |
4655 | ||
4656 | out_host_busy_free_buf: | |
bcf4dbfa | 4657 | lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd); |
0bd4ca25 | 4658 | lpfc_release_scsi_buf(phba, lpfc_cmd); |
dea3101e JB |
4659 | out_host_busy: |
4660 | return SCSI_MLQUEUE_HOST_BUSY; | |
4661 | ||
3496343d MC |
4662 | out_tgt_busy: |
4663 | return SCSI_MLQUEUE_TARGET_BUSY; | |
4664 | ||
dea3101e | 4665 | out_fail_command: |
b9a7c631 | 4666 | cmnd->scsi_done(cmnd); |
dea3101e JB |
4667 | return 0; |
4668 | } | |
4669 | ||
f281233d | 4670 | |
9bad7671 | 4671 | /** |
3621a710 | 4672 | * lpfc_abort_handler - scsi_host_template eh_abort_handler entry point |
9bad7671 JS |
4673 | * @cmnd: Pointer to scsi_cmnd data structure. |
4674 | * | |
4675 | * This routine aborts @cmnd pending in base driver. | |
4676 | * | |
4677 | * Return code : | |
4678 | * 0x2003 - Error | |
4679 | * 0x2002 - Success | |
4680 | **/ | |
dea3101e | 4681 | static int |
63c59c3b | 4682 | lpfc_abort_handler(struct scsi_cmnd *cmnd) |
dea3101e | 4683 | { |
2e0fef85 JS |
4684 | struct Scsi_Host *shost = cmnd->device->host; |
4685 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
4686 | struct lpfc_hba *phba = vport->phba; | |
0bd4ca25 JSEC |
4687 | struct lpfc_iocbq *iocb; |
4688 | struct lpfc_iocbq *abtsiocb; | |
dea3101e | 4689 | struct lpfc_scsi_buf *lpfc_cmd; |
dea3101e | 4690 | IOCB_t *cmd, *icmd; |
3a70730a | 4691 | int ret = SUCCESS, status = 0; |
98912dda | 4692 | struct lpfc_sli_ring *pring_s4; |
895427bd | 4693 | int ret_val; |
98912dda | 4694 | unsigned long flags, iflags; |
fa61a54e | 4695 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(waitq); |
dea3101e | 4696 | |
3a70730a | 4697 | status = fc_block_scsi_eh(cmnd); |
908e18e4 | 4698 | if (status != 0 && status != SUCCESS) |
3a70730a | 4699 | return status; |
4f2e66c6 | 4700 | |
876dd7d0 | 4701 | spin_lock_irqsave(&phba->hbalock, flags); |
4f2e66c6 JS |
4702 | /* driver queued commands are in process of being flushed */ |
4703 | if (phba->hba_flag & HBA_FCP_IOQ_FLUSH) { | |
876dd7d0 | 4704 | spin_unlock_irqrestore(&phba->hbalock, flags); |
4f2e66c6 JS |
4705 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
4706 | "3168 SCSI Layer abort requested I/O has been " | |
4707 | "flushed by LLD.\n"); | |
4708 | return FAILED; | |
4709 | } | |
4710 | ||
0bd4ca25 | 4711 | lpfc_cmd = (struct lpfc_scsi_buf *)cmnd->host_scribble; |
92e3af66 | 4712 | if (!lpfc_cmd || !lpfc_cmd->pCmd) { |
876dd7d0 | 4713 | spin_unlock_irqrestore(&phba->hbalock, flags); |
eee8877e JS |
4714 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
4715 | "2873 SCSI Layer I/O Abort Request IO CMPL Status " | |
9cb78c16 | 4716 | "x%x ID %d LUN %llu\n", |
3a70730a | 4717 | SUCCESS, cmnd->device->id, cmnd->device->lun); |
eee8877e JS |
4718 | return SUCCESS; |
4719 | } | |
dea3101e | 4720 | |
4f2e66c6 JS |
4721 | iocb = &lpfc_cmd->cur_iocbq; |
4722 | /* the command is in process of being cancelled */ | |
4723 | if (!(iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ)) { | |
876dd7d0 | 4724 | spin_unlock_irqrestore(&phba->hbalock, flags); |
4f2e66c6 JS |
4725 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
4726 | "3169 SCSI Layer abort requested I/O has been " | |
4727 | "cancelled by LLD.\n"); | |
4728 | return FAILED; | |
4729 | } | |
0bd4ca25 JSEC |
4730 | /* |
4731 | * If pCmd field of the corresponding lpfc_scsi_buf structure | |
4732 | * points to a different SCSI command, then the driver has | |
4733 | * already completed this command, but the midlayer did not | |
4f2e66c6 | 4734 | * see the completion before the eh fired. Just return SUCCESS. |
0bd4ca25 | 4735 | */ |
4f2e66c6 JS |
4736 | if (lpfc_cmd->pCmd != cmnd) { |
4737 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, | |
4738 | "3170 SCSI Layer abort requested I/O has been " | |
4739 | "completed by LLD.\n"); | |
4740 | goto out_unlock; | |
4741 | } | |
dea3101e | 4742 | |
0bd4ca25 | 4743 | BUG_ON(iocb->context1 != lpfc_cmd); |
dea3101e | 4744 | |
ee62021a JS |
4745 | /* abort issued in recovery is still in progress */ |
4746 | if (iocb->iocb_flag & LPFC_DRIVER_ABORTED) { | |
4747 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, | |
4748 | "3389 SCSI Layer I/O Abort Request is pending\n"); | |
4749 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
4750 | goto wait_for_cmpl; | |
4751 | } | |
4752 | ||
4f2e66c6 | 4753 | abtsiocb = __lpfc_sli_get_iocbq(phba); |
0bd4ca25 JSEC |
4754 | if (abtsiocb == NULL) { |
4755 | ret = FAILED; | |
4f2e66c6 | 4756 | goto out_unlock; |
dea3101e JB |
4757 | } |
4758 | ||
afbd8d88 JS |
4759 | /* Indicate the IO is being aborted by the driver. */ |
4760 | iocb->iocb_flag |= LPFC_DRIVER_ABORTED; | |
4761 | ||
dea3101e | 4762 | /* |
0bd4ca25 JSEC |
4763 | * The scsi command can not be in txq and it is in flight because the |
4764 | * pCmd is still pointig at the SCSI command we have to abort. There | |
4765 | * is no need to search the txcmplq. Just send an abort to the FW. | |
dea3101e | 4766 | */ |
dea3101e | 4767 | |
0bd4ca25 JSEC |
4768 | cmd = &iocb->iocb; |
4769 | icmd = &abtsiocb->iocb; | |
4770 | icmd->un.acxri.abortType = ABORT_TYPE_ABTS; | |
4771 | icmd->un.acxri.abortContextTag = cmd->ulpContext; | |
3772a991 JS |
4772 | if (phba->sli_rev == LPFC_SLI_REV4) |
4773 | icmd->un.acxri.abortIoTag = iocb->sli4_xritag; | |
4774 | else | |
4775 | icmd->un.acxri.abortIoTag = cmd->ulpIoTag; | |
dea3101e | 4776 | |
0bd4ca25 JSEC |
4777 | icmd->ulpLe = 1; |
4778 | icmd->ulpClass = cmd->ulpClass; | |
5ffc266e JS |
4779 | |
4780 | /* ABTS WQE must go to the same WQ as the WQE to be aborted */ | |
895427bd | 4781 | abtsiocb->hba_wqidx = iocb->hba_wqidx; |
341af102 | 4782 | abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX; |
9bd2bff5 JS |
4783 | if (iocb->iocb_flag & LPFC_IO_FOF) |
4784 | abtsiocb->iocb_flag |= LPFC_IO_FOF; | |
5ffc266e | 4785 | |
2e0fef85 | 4786 | if (lpfc_is_link_up(phba)) |
0bd4ca25 JSEC |
4787 | icmd->ulpCommand = CMD_ABORT_XRI_CN; |
4788 | else | |
4789 | icmd->ulpCommand = CMD_CLOSE_XRI_CN; | |
dea3101e | 4790 | |
0bd4ca25 | 4791 | abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl; |
2e0fef85 | 4792 | abtsiocb->vport = vport; |
98912dda | 4793 | if (phba->sli_rev == LPFC_SLI_REV4) { |
895427bd JS |
4794 | pring_s4 = lpfc_sli4_calc_ring(phba, iocb); |
4795 | if (pring_s4 == NULL) { | |
4796 | ret = FAILED; | |
4797 | goto out_unlock; | |
4798 | } | |
98912dda JS |
4799 | /* Note: both hbalock and ring_lock must be set here */ |
4800 | spin_lock_irqsave(&pring_s4->ring_lock, iflags); | |
4801 | ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno, | |
4802 | abtsiocb, 0); | |
4803 | spin_unlock_irqrestore(&pring_s4->ring_lock, iflags); | |
4804 | } else { | |
4805 | ret_val = __lpfc_sli_issue_iocb(phba, LPFC_FCP_RING, | |
4806 | abtsiocb, 0); | |
4807 | } | |
4f2e66c6 | 4808 | /* no longer need the lock after this point */ |
876dd7d0 | 4809 | spin_unlock_irqrestore(&phba->hbalock, flags); |
4f2e66c6 | 4810 | |
98912dda JS |
4811 | |
4812 | if (ret_val == IOCB_ERROR) { | |
0bd4ca25 JSEC |
4813 | lpfc_sli_release_iocbq(phba, abtsiocb); |
4814 | ret = FAILED; | |
4815 | goto out; | |
4816 | } | |
dea3101e | 4817 | |
875fbdfe | 4818 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
45ed1190 | 4819 | lpfc_sli_handle_fast_ring_event(phba, |
895427bd | 4820 | &phba->sli.sli3_ring[LPFC_FCP_RING], HA_R0RE_REQ); |
875fbdfe | 4821 | |
ee62021a | 4822 | wait_for_cmpl: |
fa61a54e | 4823 | lpfc_cmd->waitq = &waitq; |
0bd4ca25 | 4824 | /* Wait for abort to complete */ |
fa61a54e JS |
4825 | wait_event_timeout(waitq, |
4826 | (lpfc_cmd->pCmd != cmnd), | |
256ec0d0 | 4827 | msecs_to_jiffies(2*vport->cfg_devloss_tmo*1000)); |
ee62021a JS |
4828 | |
4829 | spin_lock_irqsave(shost->host_lock, flags); | |
fa61a54e | 4830 | lpfc_cmd->waitq = NULL; |
ee62021a | 4831 | spin_unlock_irqrestore(shost->host_lock, flags); |
dea3101e | 4832 | |
0bd4ca25 JSEC |
4833 | if (lpfc_cmd->pCmd == cmnd) { |
4834 | ret = FAILED; | |
e8b62011 JS |
4835 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
4836 | "0748 abort handler timed out waiting " | |
4b160ae8 | 4837 | "for aborting I/O (xri:x%x) to complete: " |
9cb78c16 | 4838 | "ret %#x, ID %d, LUN %llu\n", |
247ca945 JS |
4839 | iocb->sli4_xritag, ret, |
4840 | cmnd->device->id, cmnd->device->lun); | |
dea3101e | 4841 | } |
4f2e66c6 | 4842 | goto out; |
dea3101e | 4843 | |
4f2e66c6 | 4844 | out_unlock: |
876dd7d0 | 4845 | spin_unlock_irqrestore(&phba->hbalock, flags); |
4f2e66c6 | 4846 | out: |
e8b62011 JS |
4847 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
4848 | "0749 SCSI Layer I/O Abort Request Status x%x ID %d " | |
9cb78c16 | 4849 | "LUN %llu\n", ret, cmnd->device->id, |
5cd049a5 | 4850 | cmnd->device->lun); |
63c59c3b | 4851 | return ret; |
8fa728a2 JG |
4852 | } |
4853 | ||
bbb9d180 JS |
4854 | static char * |
4855 | lpfc_taskmgmt_name(uint8_t task_mgmt_cmd) | |
4856 | { | |
4857 | switch (task_mgmt_cmd) { | |
4858 | case FCP_ABORT_TASK_SET: | |
4859 | return "ABORT_TASK_SET"; | |
4860 | case FCP_CLEAR_TASK_SET: | |
4861 | return "FCP_CLEAR_TASK_SET"; | |
4862 | case FCP_BUS_RESET: | |
4863 | return "FCP_BUS_RESET"; | |
4864 | case FCP_LUN_RESET: | |
4865 | return "FCP_LUN_RESET"; | |
4866 | case FCP_TARGET_RESET: | |
4867 | return "FCP_TARGET_RESET"; | |
4868 | case FCP_CLEAR_ACA: | |
4869 | return "FCP_CLEAR_ACA"; | |
4870 | case FCP_TERMINATE_TASK: | |
4871 | return "FCP_TERMINATE_TASK"; | |
4872 | default: | |
4873 | return "unknown"; | |
4874 | } | |
4875 | } | |
4876 | ||
53151bbb JS |
4877 | |
4878 | /** | |
4879 | * lpfc_check_fcp_rsp - check the returned fcp_rsp to see if task failed | |
4880 | * @vport: The virtual port for which this call is being executed. | |
4881 | * @lpfc_cmd: Pointer to lpfc_scsi_buf data structure. | |
4882 | * | |
4883 | * This routine checks the FCP RSP INFO to see if the tsk mgmt command succeded | |
4884 | * | |
4885 | * Return code : | |
4886 | * 0x2003 - Error | |
4887 | * 0x2002 - Success | |
4888 | **/ | |
4889 | static int | |
4890 | lpfc_check_fcp_rsp(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd) | |
4891 | { | |
4892 | struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp; | |
4893 | uint32_t rsp_info; | |
4894 | uint32_t rsp_len; | |
4895 | uint8_t rsp_info_code; | |
4896 | int ret = FAILED; | |
4897 | ||
4898 | ||
4899 | if (fcprsp == NULL) | |
4900 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
4901 | "0703 fcp_rsp is missing\n"); | |
4902 | else { | |
4903 | rsp_info = fcprsp->rspStatus2; | |
4904 | rsp_len = be32_to_cpu(fcprsp->rspRspLen); | |
4905 | rsp_info_code = fcprsp->rspInfo3; | |
4906 | ||
4907 | ||
4908 | lpfc_printf_vlog(vport, KERN_INFO, | |
4909 | LOG_FCP, | |
4910 | "0706 fcp_rsp valid 0x%x," | |
4911 | " rsp len=%d code 0x%x\n", | |
4912 | rsp_info, | |
4913 | rsp_len, rsp_info_code); | |
4914 | ||
4915 | if ((fcprsp->rspStatus2&RSP_LEN_VALID) && (rsp_len == 8)) { | |
4916 | switch (rsp_info_code) { | |
4917 | case RSP_NO_FAILURE: | |
4918 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
4919 | "0715 Task Mgmt No Failure\n"); | |
4920 | ret = SUCCESS; | |
4921 | break; | |
4922 | case RSP_TM_NOT_SUPPORTED: /* TM rejected */ | |
4923 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
4924 | "0716 Task Mgmt Target " | |
4925 | "reject\n"); | |
4926 | break; | |
4927 | case RSP_TM_NOT_COMPLETED: /* TM failed */ | |
4928 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
4929 | "0717 Task Mgmt Target " | |
4930 | "failed TM\n"); | |
4931 | break; | |
4932 | case RSP_TM_INVALID_LU: /* TM to invalid LU! */ | |
4933 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
4934 | "0718 Task Mgmt to invalid " | |
4935 | "LUN\n"); | |
4936 | break; | |
4937 | } | |
4938 | } | |
4939 | } | |
4940 | return ret; | |
4941 | } | |
4942 | ||
4943 | ||
9bad7671 | 4944 | /** |
bbb9d180 JS |
4945 | * lpfc_send_taskmgmt - Generic SCSI Task Mgmt Handler |
4946 | * @vport: The virtual port for which this call is being executed. | |
4947 | * @rdata: Pointer to remote port local data | |
4948 | * @tgt_id: Target ID of remote device. | |
4949 | * @lun_id: Lun number for the TMF | |
4950 | * @task_mgmt_cmd: type of TMF to send | |
9bad7671 | 4951 | * |
bbb9d180 JS |
4952 | * This routine builds and sends a TMF (SCSI Task Mgmt Function) to |
4953 | * a remote port. | |
9bad7671 | 4954 | * |
bbb9d180 JS |
4955 | * Return Code: |
4956 | * 0x2003 - Error | |
4957 | * 0x2002 - Success. | |
9bad7671 | 4958 | **/ |
dea3101e | 4959 | static int |
eed695d7 JS |
4960 | lpfc_send_taskmgmt(struct lpfc_vport *vport, struct scsi_cmnd *cmnd, |
4961 | unsigned int tgt_id, uint64_t lun_id, | |
4962 | uint8_t task_mgmt_cmd) | |
dea3101e | 4963 | { |
2e0fef85 | 4964 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 | 4965 | struct lpfc_scsi_buf *lpfc_cmd; |
bbb9d180 JS |
4966 | struct lpfc_iocbq *iocbq; |
4967 | struct lpfc_iocbq *iocbqrsp; | |
eed695d7 JS |
4968 | struct lpfc_rport_data *rdata; |
4969 | struct lpfc_nodelist *pnode; | |
bbb9d180 | 4970 | int ret; |
915caaaf | 4971 | int status; |
dea3101e | 4972 | |
eed695d7 JS |
4973 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
4974 | if (!rdata || !rdata->pnode || !NLP_CHK_NODE_ACT(rdata->pnode)) | |
915caaaf | 4975 | return FAILED; |
eed695d7 | 4976 | pnode = rdata->pnode; |
bbb9d180 | 4977 | |
eed695d7 | 4978 | lpfc_cmd = lpfc_get_scsi_buf(phba, pnode); |
dea3101e | 4979 | if (lpfc_cmd == NULL) |
915caaaf | 4980 | return FAILED; |
0c411222 | 4981 | lpfc_cmd->timeout = phba->cfg_task_mgmt_tmo; |
0b18ac42 | 4982 | lpfc_cmd->rdata = rdata; |
eed695d7 | 4983 | lpfc_cmd->pCmd = cmnd; |
dea3101e | 4984 | |
bbb9d180 JS |
4985 | status = lpfc_scsi_prep_task_mgmt_cmd(vport, lpfc_cmd, lun_id, |
4986 | task_mgmt_cmd); | |
915caaaf JS |
4987 | if (!status) { |
4988 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
4989 | return FAILED; | |
4990 | } | |
dea3101e | 4991 | |
bbb9d180 | 4992 | iocbq = &lpfc_cmd->cur_iocbq; |
0bd4ca25 | 4993 | iocbqrsp = lpfc_sli_get_iocbq(phba); |
915caaaf JS |
4994 | if (iocbqrsp == NULL) { |
4995 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
4996 | return FAILED; | |
4997 | } | |
5a0916b4 | 4998 | iocbq->iocb_cmpl = lpfc_tskmgmt_def_cmpl; |
bbb9d180 | 4999 | |
e8b62011 | 5000 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, |
9cb78c16 | 5001 | "0702 Issue %s to TGT %d LUN %llu " |
6d368e53 | 5002 | "rpi x%x nlp_flag x%x Data: x%x x%x\n", |
bbb9d180 | 5003 | lpfc_taskmgmt_name(task_mgmt_cmd), tgt_id, lun_id, |
6d368e53 JS |
5004 | pnode->nlp_rpi, pnode->nlp_flag, iocbq->sli4_xritag, |
5005 | iocbq->iocb_flag); | |
bbb9d180 | 5006 | |
3772a991 | 5007 | status = lpfc_sli_issue_iocb_wait(phba, LPFC_FCP_RING, |
915caaaf | 5008 | iocbq, iocbqrsp, lpfc_cmd->timeout); |
53151bbb JS |
5009 | if ((status != IOCB_SUCCESS) || |
5010 | (iocbqrsp->iocb.ulpStatus != IOSTAT_SUCCESS)) { | |
ae374a30 JS |
5011 | if (status != IOCB_SUCCESS || |
5012 | iocbqrsp->iocb.ulpStatus != IOSTAT_FCP_RSP_ERROR) | |
5013 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
5014 | "0727 TMF %s to TGT %d LUN %llu " | |
5015 | "failed (%d, %d) iocb_flag x%x\n", | |
5016 | lpfc_taskmgmt_name(task_mgmt_cmd), | |
5017 | tgt_id, lun_id, | |
5018 | iocbqrsp->iocb.ulpStatus, | |
5019 | iocbqrsp->iocb.un.ulpWord[4], | |
5020 | iocbq->iocb_flag); | |
53151bbb JS |
5021 | /* if ulpStatus != IOCB_SUCCESS, then status == IOCB_SUCCESS */ |
5022 | if (status == IOCB_SUCCESS) { | |
5023 | if (iocbqrsp->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR) | |
5024 | /* Something in the FCP_RSP was invalid. | |
5025 | * Check conditions */ | |
5026 | ret = lpfc_check_fcp_rsp(vport, lpfc_cmd); | |
5027 | else | |
5028 | ret = FAILED; | |
5029 | } else if (status == IOCB_TIMEDOUT) { | |
5030 | ret = TIMEOUT_ERROR; | |
5031 | } else { | |
5032 | ret = FAILED; | |
5033 | } | |
53151bbb | 5034 | } else |
bbb9d180 JS |
5035 | ret = SUCCESS; |
5036 | ||
6175c02a | 5037 | lpfc_sli_release_iocbq(phba, iocbqrsp); |
bbb9d180 JS |
5038 | |
5039 | if (ret != TIMEOUT_ERROR) | |
5040 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
5041 | ||
5042 | return ret; | |
5043 | } | |
5044 | ||
5045 | /** | |
5046 | * lpfc_chk_tgt_mapped - | |
5047 | * @vport: The virtual port to check on | |
5048 | * @cmnd: Pointer to scsi_cmnd data structure. | |
5049 | * | |
5050 | * This routine delays until the scsi target (aka rport) for the | |
5051 | * command exists (is present and logged in) or we declare it non-existent. | |
5052 | * | |
5053 | * Return code : | |
5054 | * 0x2003 - Error | |
5055 | * 0x2002 - Success | |
5056 | **/ | |
5057 | static int | |
5058 | lpfc_chk_tgt_mapped(struct lpfc_vport *vport, struct scsi_cmnd *cmnd) | |
5059 | { | |
1ba981fd | 5060 | struct lpfc_rport_data *rdata; |
1c6f4ef5 | 5061 | struct lpfc_nodelist *pnode; |
bbb9d180 JS |
5062 | unsigned long later; |
5063 | ||
1ba981fd | 5064 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
1c6f4ef5 JS |
5065 | if (!rdata) { |
5066 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
5067 | "0797 Tgt Map rport failure: rdata x%p\n", rdata); | |
5068 | return FAILED; | |
5069 | } | |
5070 | pnode = rdata->pnode; | |
bbb9d180 JS |
5071 | /* |
5072 | * If target is not in a MAPPED state, delay until | |
5073 | * target is rediscovered or devloss timeout expires. | |
5074 | */ | |
5075 | later = msecs_to_jiffies(2 * vport->cfg_devloss_tmo * 1000) + jiffies; | |
5076 | while (time_after(later, jiffies)) { | |
5077 | if (!pnode || !NLP_CHK_NODE_ACT(pnode)) | |
5078 | return FAILED; | |
5079 | if (pnode->nlp_state == NLP_STE_MAPPED_NODE) | |
5080 | return SUCCESS; | |
5081 | schedule_timeout_uninterruptible(msecs_to_jiffies(500)); | |
1ba981fd | 5082 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
bbb9d180 JS |
5083 | if (!rdata) |
5084 | return FAILED; | |
5085 | pnode = rdata->pnode; | |
5086 | } | |
5087 | if (!pnode || !NLP_CHK_NODE_ACT(pnode) || | |
5088 | (pnode->nlp_state != NLP_STE_MAPPED_NODE)) | |
5089 | return FAILED; | |
5090 | return SUCCESS; | |
5091 | } | |
5092 | ||
5093 | /** | |
5094 | * lpfc_reset_flush_io_context - | |
5095 | * @vport: The virtual port (scsi_host) for the flush context | |
5096 | * @tgt_id: If aborting by Target contect - specifies the target id | |
5097 | * @lun_id: If aborting by Lun context - specifies the lun id | |
5098 | * @context: specifies the context level to flush at. | |
5099 | * | |
5100 | * After a reset condition via TMF, we need to flush orphaned i/o | |
5101 | * contexts from the adapter. This routine aborts any contexts | |
5102 | * outstanding, then waits for their completions. The wait is | |
5103 | * bounded by devloss_tmo though. | |
5104 | * | |
5105 | * Return code : | |
5106 | * 0x2003 - Error | |
5107 | * 0x2002 - Success | |
5108 | **/ | |
5109 | static int | |
5110 | lpfc_reset_flush_io_context(struct lpfc_vport *vport, uint16_t tgt_id, | |
5111 | uint64_t lun_id, lpfc_ctx_cmd context) | |
5112 | { | |
5113 | struct lpfc_hba *phba = vport->phba; | |
5114 | unsigned long later; | |
5115 | int cnt; | |
5116 | ||
5117 | cnt = lpfc_sli_sum_iocb(vport, tgt_id, lun_id, context); | |
6175c02a | 5118 | if (cnt) |
98912dda | 5119 | lpfc_sli_abort_taskmgmt(vport, |
895427bd | 5120 | &phba->sli.sli3_ring[LPFC_FCP_RING], |
98912dda | 5121 | tgt_id, lun_id, context); |
915caaaf JS |
5122 | later = msecs_to_jiffies(2 * vport->cfg_devloss_tmo * 1000) + jiffies; |
5123 | while (time_after(later, jiffies) && cnt) { | |
5124 | schedule_timeout_uninterruptible(msecs_to_jiffies(20)); | |
bbb9d180 | 5125 | cnt = lpfc_sli_sum_iocb(vport, tgt_id, lun_id, context); |
dea3101e | 5126 | } |
dea3101e | 5127 | if (cnt) { |
e8b62011 | 5128 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
bbb9d180 JS |
5129 | "0724 I/O flush failure for context %s : cnt x%x\n", |
5130 | ((context == LPFC_CTX_LUN) ? "LUN" : | |
5131 | ((context == LPFC_CTX_TGT) ? "TGT" : | |
5132 | ((context == LPFC_CTX_HOST) ? "HOST" : "Unknown"))), | |
5133 | cnt); | |
5134 | return FAILED; | |
dea3101e | 5135 | } |
bbb9d180 JS |
5136 | return SUCCESS; |
5137 | } | |
5138 | ||
5139 | /** | |
5140 | * lpfc_device_reset_handler - scsi_host_template eh_device_reset entry point | |
5141 | * @cmnd: Pointer to scsi_cmnd data structure. | |
5142 | * | |
5143 | * This routine does a device reset by sending a LUN_RESET task management | |
5144 | * command. | |
5145 | * | |
5146 | * Return code : | |
5147 | * 0x2003 - Error | |
5148 | * 0x2002 - Success | |
5149 | **/ | |
5150 | static int | |
5151 | lpfc_device_reset_handler(struct scsi_cmnd *cmnd) | |
5152 | { | |
5153 | struct Scsi_Host *shost = cmnd->device->host; | |
5154 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
1ba981fd | 5155 | struct lpfc_rport_data *rdata; |
1c6f4ef5 | 5156 | struct lpfc_nodelist *pnode; |
bbb9d180 | 5157 | unsigned tgt_id = cmnd->device->id; |
9cb78c16 | 5158 | uint64_t lun_id = cmnd->device->lun; |
bbb9d180 | 5159 | struct lpfc_scsi_event_header scsi_event; |
53151bbb | 5160 | int status; |
bbb9d180 | 5161 | |
1ba981fd | 5162 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
ad490b6e | 5163 | if (!rdata || !rdata->pnode) { |
1c6f4ef5 | 5164 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
ad490b6e JS |
5165 | "0798 Device Reset rport failure: rdata x%p\n", |
5166 | rdata); | |
1c6f4ef5 JS |
5167 | return FAILED; |
5168 | } | |
5169 | pnode = rdata->pnode; | |
589a52d6 | 5170 | status = fc_block_scsi_eh(cmnd); |
908e18e4 | 5171 | if (status != 0 && status != SUCCESS) |
589a52d6 | 5172 | return status; |
bbb9d180 JS |
5173 | |
5174 | status = lpfc_chk_tgt_mapped(vport, cmnd); | |
5175 | if (status == FAILED) { | |
5176 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
5177 | "0721 Device Reset rport failure: rdata x%p\n", rdata); | |
5178 | return FAILED; | |
5179 | } | |
5180 | ||
5181 | scsi_event.event_type = FC_REG_SCSI_EVENT; | |
5182 | scsi_event.subcategory = LPFC_EVENT_LUNRESET; | |
5183 | scsi_event.lun = lun_id; | |
5184 | memcpy(scsi_event.wwpn, &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
5185 | memcpy(scsi_event.wwnn, &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
5186 | ||
5187 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
5188 | sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID); | |
5189 | ||
eed695d7 | 5190 | status = lpfc_send_taskmgmt(vport, cmnd, tgt_id, lun_id, |
bbb9d180 JS |
5191 | FCP_LUN_RESET); |
5192 | ||
5193 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
9cb78c16 | 5194 | "0713 SCSI layer issued Device Reset (%d, %llu) " |
bbb9d180 JS |
5195 | "return x%x\n", tgt_id, lun_id, status); |
5196 | ||
5197 | /* | |
5198 | * We have to clean up i/o as : they may be orphaned by the TMF; | |
5199 | * or if the TMF failed, they may be in an indeterminate state. | |
5200 | * So, continue on. | |
5201 | * We will report success if all the i/o aborts successfully. | |
5202 | */ | |
53151bbb JS |
5203 | if (status == SUCCESS) |
5204 | status = lpfc_reset_flush_io_context(vport, tgt_id, lun_id, | |
bbb9d180 | 5205 | LPFC_CTX_LUN); |
53151bbb JS |
5206 | |
5207 | return status; | |
bbb9d180 JS |
5208 | } |
5209 | ||
5210 | /** | |
5211 | * lpfc_target_reset_handler - scsi_host_template eh_target_reset entry point | |
5212 | * @cmnd: Pointer to scsi_cmnd data structure. | |
5213 | * | |
5214 | * This routine does a target reset by sending a TARGET_RESET task management | |
5215 | * command. | |
5216 | * | |
5217 | * Return code : | |
5218 | * 0x2003 - Error | |
5219 | * 0x2002 - Success | |
5220 | **/ | |
5221 | static int | |
5222 | lpfc_target_reset_handler(struct scsi_cmnd *cmnd) | |
5223 | { | |
5224 | struct Scsi_Host *shost = cmnd->device->host; | |
5225 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
1ba981fd | 5226 | struct lpfc_rport_data *rdata; |
1c6f4ef5 | 5227 | struct lpfc_nodelist *pnode; |
bbb9d180 | 5228 | unsigned tgt_id = cmnd->device->id; |
9cb78c16 | 5229 | uint64_t lun_id = cmnd->device->lun; |
bbb9d180 | 5230 | struct lpfc_scsi_event_header scsi_event; |
53151bbb | 5231 | int status; |
bbb9d180 | 5232 | |
1ba981fd | 5233 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
1c6f4ef5 JS |
5234 | if (!rdata) { |
5235 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
5236 | "0799 Target Reset rport failure: rdata x%p\n", rdata); | |
5237 | return FAILED; | |
5238 | } | |
5239 | pnode = rdata->pnode; | |
589a52d6 | 5240 | status = fc_block_scsi_eh(cmnd); |
908e18e4 | 5241 | if (status != 0 && status != SUCCESS) |
589a52d6 | 5242 | return status; |
bbb9d180 JS |
5243 | |
5244 | status = lpfc_chk_tgt_mapped(vport, cmnd); | |
5245 | if (status == FAILED) { | |
5246 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
5247 | "0722 Target Reset rport failure: rdata x%p\n", rdata); | |
63e480fd JS |
5248 | if (pnode) { |
5249 | spin_lock_irq(shost->host_lock); | |
5250 | pnode->nlp_flag &= ~NLP_NPR_ADISC; | |
5251 | pnode->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; | |
5252 | spin_unlock_irq(shost->host_lock); | |
5253 | } | |
8c50d25c JS |
5254 | lpfc_reset_flush_io_context(vport, tgt_id, lun_id, |
5255 | LPFC_CTX_TGT); | |
5256 | return FAST_IO_FAIL; | |
bbb9d180 JS |
5257 | } |
5258 | ||
5259 | scsi_event.event_type = FC_REG_SCSI_EVENT; | |
5260 | scsi_event.subcategory = LPFC_EVENT_TGTRESET; | |
5261 | scsi_event.lun = 0; | |
5262 | memcpy(scsi_event.wwpn, &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
5263 | memcpy(scsi_event.wwnn, &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
5264 | ||
5265 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
5266 | sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID); | |
5267 | ||
eed695d7 | 5268 | status = lpfc_send_taskmgmt(vport, cmnd, tgt_id, lun_id, |
bbb9d180 JS |
5269 | FCP_TARGET_RESET); |
5270 | ||
5271 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
9cb78c16 | 5272 | "0723 SCSI layer issued Target Reset (%d, %llu) " |
bbb9d180 JS |
5273 | "return x%x\n", tgt_id, lun_id, status); |
5274 | ||
5275 | /* | |
5276 | * We have to clean up i/o as : they may be orphaned by the TMF; | |
5277 | * or if the TMF failed, they may be in an indeterminate state. | |
5278 | * So, continue on. | |
5279 | * We will report success if all the i/o aborts successfully. | |
5280 | */ | |
53151bbb JS |
5281 | if (status == SUCCESS) |
5282 | status = lpfc_reset_flush_io_context(vport, tgt_id, lun_id, | |
3a70730a | 5283 | LPFC_CTX_TGT); |
53151bbb | 5284 | return status; |
dea3101e JB |
5285 | } |
5286 | ||
9bad7671 | 5287 | /** |
3621a710 | 5288 | * lpfc_bus_reset_handler - scsi_host_template eh_bus_reset_handler entry point |
9bad7671 JS |
5289 | * @cmnd: Pointer to scsi_cmnd data structure. |
5290 | * | |
bbb9d180 JS |
5291 | * This routine does target reset to all targets on @cmnd->device->host. |
5292 | * This emulates Parallel SCSI Bus Reset Semantics. | |
9bad7671 | 5293 | * |
bbb9d180 JS |
5294 | * Return code : |
5295 | * 0x2003 - Error | |
5296 | * 0x2002 - Success | |
9bad7671 | 5297 | **/ |
94d0e7b8 | 5298 | static int |
7054a606 | 5299 | lpfc_bus_reset_handler(struct scsi_cmnd *cmnd) |
dea3101e | 5300 | { |
2e0fef85 JS |
5301 | struct Scsi_Host *shost = cmnd->device->host; |
5302 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
dea3101e | 5303 | struct lpfc_nodelist *ndlp = NULL; |
ea2151b4 | 5304 | struct lpfc_scsi_event_header scsi_event; |
bbb9d180 JS |
5305 | int match; |
5306 | int ret = SUCCESS, status, i; | |
ea2151b4 JS |
5307 | |
5308 | scsi_event.event_type = FC_REG_SCSI_EVENT; | |
5309 | scsi_event.subcategory = LPFC_EVENT_BUSRESET; | |
5310 | scsi_event.lun = 0; | |
5311 | memcpy(scsi_event.wwpn, &vport->fc_portname, sizeof(struct lpfc_name)); | |
5312 | memcpy(scsi_event.wwnn, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
5313 | ||
bbb9d180 JS |
5314 | fc_host_post_vendor_event(shost, fc_get_event_number(), |
5315 | sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID); | |
dea3101e | 5316 | |
bf08611b | 5317 | status = fc_block_scsi_eh(cmnd); |
908e18e4 | 5318 | if (status != 0 && status != SUCCESS) |
bf08611b | 5319 | return status; |
bbb9d180 | 5320 | |
dea3101e JB |
5321 | /* |
5322 | * Since the driver manages a single bus device, reset all | |
5323 | * targets known to the driver. Should any target reset | |
5324 | * fail, this routine returns failure to the midlayer. | |
5325 | */ | |
e17da18e | 5326 | for (i = 0; i < LPFC_MAX_TARGET; i++) { |
685f0bf7 | 5327 | /* Search for mapped node by target ID */ |
dea3101e | 5328 | match = 0; |
2e0fef85 JS |
5329 | spin_lock_irq(shost->host_lock); |
5330 | list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { | |
e47c9093 JS |
5331 | if (!NLP_CHK_NODE_ACT(ndlp)) |
5332 | continue; | |
a6571c6e JS |
5333 | if (vport->phba->cfg_fcp2_no_tgt_reset && |
5334 | (ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE)) | |
5335 | continue; | |
685f0bf7 | 5336 | if (ndlp->nlp_state == NLP_STE_MAPPED_NODE && |
915caaaf | 5337 | ndlp->nlp_sid == i && |
a0f2d3ef JS |
5338 | ndlp->rport && |
5339 | ndlp->nlp_type & NLP_FCP_TARGET) { | |
dea3101e JB |
5340 | match = 1; |
5341 | break; | |
5342 | } | |
5343 | } | |
2e0fef85 | 5344 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
5345 | if (!match) |
5346 | continue; | |
bbb9d180 | 5347 | |
eed695d7 | 5348 | status = lpfc_send_taskmgmt(vport, cmnd, |
bbb9d180 JS |
5349 | i, 0, FCP_TARGET_RESET); |
5350 | ||
5351 | if (status != SUCCESS) { | |
e8b62011 JS |
5352 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
5353 | "0700 Bus Reset on target %d failed\n", | |
5354 | i); | |
915caaaf | 5355 | ret = FAILED; |
dea3101e JB |
5356 | } |
5357 | } | |
6175c02a | 5358 | /* |
bbb9d180 JS |
5359 | * We have to clean up i/o as : they may be orphaned by the TMFs |
5360 | * above; or if any of the TMFs failed, they may be in an | |
5361 | * indeterminate state. | |
5362 | * We will report success if all the i/o aborts successfully. | |
6175c02a | 5363 | */ |
bbb9d180 JS |
5364 | |
5365 | status = lpfc_reset_flush_io_context(vport, 0, 0, LPFC_CTX_HOST); | |
5366 | if (status != SUCCESS) | |
0bd4ca25 | 5367 | ret = FAILED; |
bbb9d180 | 5368 | |
e8b62011 JS |
5369 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
5370 | "0714 SCSI layer issued Bus Reset Data: x%x\n", ret); | |
dea3101e JB |
5371 | return ret; |
5372 | } | |
5373 | ||
27b01b82 JS |
5374 | /** |
5375 | * lpfc_host_reset_handler - scsi_host_template eh_host_reset_handler entry pt | |
5376 | * @cmnd: Pointer to scsi_cmnd data structure. | |
5377 | * | |
5378 | * This routine does host reset to the adaptor port. It brings the HBA | |
5379 | * offline, performs a board restart, and then brings the board back online. | |
5380 | * The lpfc_offline calls lpfc_sli_hba_down which will abort and local | |
5381 | * reject all outstanding SCSI commands to the host and error returned | |
5382 | * back to SCSI mid-level. As this will be SCSI mid-level's last resort | |
5383 | * of error handling, it will only return error if resetting of the adapter | |
5384 | * is not successful; in all other cases, will return success. | |
5385 | * | |
5386 | * Return code : | |
5387 | * 0x2003 - Error | |
5388 | * 0x2002 - Success | |
5389 | **/ | |
5390 | static int | |
5391 | lpfc_host_reset_handler(struct scsi_cmnd *cmnd) | |
5392 | { | |
5393 | struct Scsi_Host *shost = cmnd->device->host; | |
5394 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
5395 | struct lpfc_hba *phba = vport->phba; | |
5396 | int rc, ret = SUCCESS; | |
5397 | ||
a88dbb6a JS |
5398 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
5399 | "3172 SCSI layer issued Host Reset Data:\n"); | |
5400 | ||
618a5230 | 5401 | lpfc_offline_prep(phba, LPFC_MBX_WAIT); |
27b01b82 JS |
5402 | lpfc_offline(phba); |
5403 | rc = lpfc_sli_brdrestart(phba); | |
5404 | if (rc) | |
5405 | ret = FAILED; | |
a88dbb6a JS |
5406 | rc = lpfc_online(phba); |
5407 | if (rc) | |
5408 | ret = FAILED; | |
27b01b82 JS |
5409 | lpfc_unblock_mgmt_io(phba); |
5410 | ||
a88dbb6a JS |
5411 | if (ret == FAILED) { |
5412 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
5413 | "3323 Failed host reset, bring it offline\n"); | |
5414 | lpfc_sli4_offline_eratt(phba); | |
5415 | } | |
27b01b82 JS |
5416 | return ret; |
5417 | } | |
5418 | ||
9bad7671 | 5419 | /** |
3621a710 | 5420 | * lpfc_slave_alloc - scsi_host_template slave_alloc entry point |
9bad7671 JS |
5421 | * @sdev: Pointer to scsi_device. |
5422 | * | |
5423 | * This routine populates the cmds_per_lun count + 2 scsi_bufs into this host's | |
5424 | * globally available list of scsi buffers. This routine also makes sure scsi | |
5425 | * buffer is not allocated more than HBA limit conveyed to midlayer. This list | |
5426 | * of scsi buffer exists for the lifetime of the driver. | |
5427 | * | |
5428 | * Return codes: | |
5429 | * non-0 - Error | |
5430 | * 0 - Success | |
5431 | **/ | |
dea3101e JB |
5432 | static int |
5433 | lpfc_slave_alloc(struct scsi_device *sdev) | |
5434 | { | |
2e0fef85 JS |
5435 | struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; |
5436 | struct lpfc_hba *phba = vport->phba; | |
19a7b4ae | 5437 | struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); |
3772a991 | 5438 | uint32_t total = 0; |
dea3101e | 5439 | uint32_t num_to_alloc = 0; |
3772a991 | 5440 | int num_allocated = 0; |
d7c47992 | 5441 | uint32_t sdev_cnt; |
1ba981fd JS |
5442 | struct lpfc_device_data *device_data; |
5443 | unsigned long flags; | |
5444 | struct lpfc_name target_wwpn; | |
dea3101e | 5445 | |
19a7b4ae | 5446 | if (!rport || fc_remote_port_chkready(rport)) |
dea3101e JB |
5447 | return -ENXIO; |
5448 | ||
f38fa0bb | 5449 | if (phba->cfg_fof) { |
1ba981fd JS |
5450 | |
5451 | /* | |
5452 | * Check to see if the device data structure for the lun | |
5453 | * exists. If not, create one. | |
5454 | */ | |
5455 | ||
5456 | u64_to_wwn(rport->port_name, target_wwpn.u.wwn); | |
5457 | spin_lock_irqsave(&phba->devicelock, flags); | |
5458 | device_data = __lpfc_get_device_data(phba, | |
5459 | &phba->luns, | |
5460 | &vport->fc_portname, | |
5461 | &target_wwpn, | |
5462 | sdev->lun); | |
5463 | if (!device_data) { | |
5464 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5465 | device_data = lpfc_create_device_data(phba, | |
5466 | &vport->fc_portname, | |
5467 | &target_wwpn, | |
b5749fe1 JS |
5468 | sdev->lun, |
5469 | phba->cfg_XLanePriority, | |
5470 | true); | |
1ba981fd JS |
5471 | if (!device_data) |
5472 | return -ENOMEM; | |
5473 | spin_lock_irqsave(&phba->devicelock, flags); | |
5474 | list_add_tail(&device_data->listentry, &phba->luns); | |
5475 | } | |
5476 | device_data->rport_data = rport->dd_data; | |
5477 | device_data->available = true; | |
5478 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5479 | sdev->hostdata = device_data; | |
5480 | } else { | |
5481 | sdev->hostdata = rport->dd_data; | |
5482 | } | |
d7c47992 | 5483 | sdev_cnt = atomic_inc_return(&phba->sdev_cnt); |
dea3101e JB |
5484 | |
5485 | /* | |
5486 | * Populate the cmds_per_lun count scsi_bufs into this host's globally | |
5487 | * available list of scsi buffers. Don't allocate more than the | |
a784efbf JSEC |
5488 | * HBA limit conveyed to the midlayer via the host structure. The |
5489 | * formula accounts for the lun_queue_depth + error handlers + 1 | |
5490 | * extra. This list of scsi bufs exists for the lifetime of the driver. | |
dea3101e JB |
5491 | */ |
5492 | total = phba->total_scsi_bufs; | |
3de2a653 | 5493 | num_to_alloc = vport->cfg_lun_queue_depth + 2; |
92d7f7b0 | 5494 | |
d7c47992 JS |
5495 | /* If allocated buffers are enough do nothing */ |
5496 | if ((sdev_cnt * (vport->cfg_lun_queue_depth + 2)) < total) | |
5497 | return 0; | |
5498 | ||
92d7f7b0 JS |
5499 | /* Allow some exchanges to be available always to complete discovery */ |
5500 | if (total >= phba->cfg_hba_queue_depth - LPFC_DISC_IOCB_BUFF_COUNT ) { | |
e8b62011 JS |
5501 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
5502 | "0704 At limitation of %d preallocated " | |
5503 | "command buffers\n", total); | |
dea3101e | 5504 | return 0; |
92d7f7b0 JS |
5505 | /* Allow some exchanges to be available always to complete discovery */ |
5506 | } else if (total + num_to_alloc > | |
5507 | phba->cfg_hba_queue_depth - LPFC_DISC_IOCB_BUFF_COUNT ) { | |
e8b62011 JS |
5508 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
5509 | "0705 Allocation request of %d " | |
5510 | "command buffers will exceed max of %d. " | |
5511 | "Reducing allocation request to %d.\n", | |
5512 | num_to_alloc, phba->cfg_hba_queue_depth, | |
5513 | (phba->cfg_hba_queue_depth - total)); | |
dea3101e JB |
5514 | num_to_alloc = phba->cfg_hba_queue_depth - total; |
5515 | } | |
3772a991 JS |
5516 | num_allocated = lpfc_new_scsi_buf(vport, num_to_alloc); |
5517 | if (num_to_alloc != num_allocated) { | |
96f7077f JS |
5518 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
5519 | "0708 Allocation request of %d " | |
5520 | "command buffers did not succeed. " | |
5521 | "Allocated %d buffers.\n", | |
5522 | num_to_alloc, num_allocated); | |
dea3101e | 5523 | } |
1c6f4ef5 JS |
5524 | if (num_allocated > 0) |
5525 | phba->total_scsi_bufs += num_allocated; | |
dea3101e JB |
5526 | return 0; |
5527 | } | |
5528 | ||
9bad7671 | 5529 | /** |
3621a710 | 5530 | * lpfc_slave_configure - scsi_host_template slave_configure entry point |
9bad7671 JS |
5531 | * @sdev: Pointer to scsi_device. |
5532 | * | |
5533 | * This routine configures following items | |
5534 | * - Tag command queuing support for @sdev if supported. | |
9bad7671 JS |
5535 | * - Enable SLI polling for fcp ring if ENABLE_FCP_RING_POLLING flag is set. |
5536 | * | |
5537 | * Return codes: | |
5538 | * 0 - Success | |
5539 | **/ | |
dea3101e JB |
5540 | static int |
5541 | lpfc_slave_configure(struct scsi_device *sdev) | |
5542 | { | |
2e0fef85 JS |
5543 | struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; |
5544 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 5545 | |
db5ed4df | 5546 | scsi_change_queue_depth(sdev, vport->cfg_lun_queue_depth); |
dea3101e | 5547 | |
875fbdfe | 5548 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { |
45ed1190 | 5549 | lpfc_sli_handle_fast_ring_event(phba, |
895427bd | 5550 | &phba->sli.sli3_ring[LPFC_FCP_RING], HA_R0RE_REQ); |
875fbdfe JSEC |
5551 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
5552 | lpfc_poll_rearm_timer(phba); | |
5553 | } | |
5554 | ||
dea3101e JB |
5555 | return 0; |
5556 | } | |
5557 | ||
9bad7671 | 5558 | /** |
3621a710 | 5559 | * lpfc_slave_destroy - slave_destroy entry point of SHT data structure |
9bad7671 JS |
5560 | * @sdev: Pointer to scsi_device. |
5561 | * | |
5562 | * This routine sets @sdev hostatdata filed to null. | |
5563 | **/ | |
dea3101e JB |
5564 | static void |
5565 | lpfc_slave_destroy(struct scsi_device *sdev) | |
5566 | { | |
d7c47992 JS |
5567 | struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; |
5568 | struct lpfc_hba *phba = vport->phba; | |
1ba981fd JS |
5569 | unsigned long flags; |
5570 | struct lpfc_device_data *device_data = sdev->hostdata; | |
5571 | ||
d7c47992 | 5572 | atomic_dec(&phba->sdev_cnt); |
f38fa0bb | 5573 | if ((phba->cfg_fof) && (device_data)) { |
1ba981fd JS |
5574 | spin_lock_irqsave(&phba->devicelock, flags); |
5575 | device_data->available = false; | |
5576 | if (!device_data->oas_enabled) | |
5577 | lpfc_delete_device_data(phba, device_data); | |
5578 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5579 | } | |
dea3101e JB |
5580 | sdev->hostdata = NULL; |
5581 | return; | |
5582 | } | |
5583 | ||
1ba981fd JS |
5584 | /** |
5585 | * lpfc_create_device_data - creates and initializes device data structure for OAS | |
5586 | * @pha: Pointer to host bus adapter structure. | |
5587 | * @vport_wwpn: Pointer to vport's wwpn information | |
5588 | * @target_wwpn: Pointer to target's wwpn information | |
5589 | * @lun: Lun on target | |
5590 | * @atomic_create: Flag to indicate if memory should be allocated using the | |
5591 | * GFP_ATOMIC flag or not. | |
5592 | * | |
5593 | * This routine creates a device data structure which will contain identifying | |
5594 | * information for the device (host wwpn, target wwpn, lun), state of OAS, | |
5595 | * whether or not the corresponding lun is available by the system, | |
5596 | * and pointer to the rport data. | |
5597 | * | |
5598 | * Return codes: | |
5599 | * NULL - Error | |
5600 | * Pointer to lpfc_device_data - Success | |
5601 | **/ | |
5602 | struct lpfc_device_data* | |
5603 | lpfc_create_device_data(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn, | |
5604 | struct lpfc_name *target_wwpn, uint64_t lun, | |
b5749fe1 | 5605 | uint32_t pri, bool atomic_create) |
1ba981fd JS |
5606 | { |
5607 | ||
5608 | struct lpfc_device_data *lun_info; | |
5609 | int memory_flags; | |
5610 | ||
5611 | if (unlikely(!phba) || !vport_wwpn || !target_wwpn || | |
f38fa0bb | 5612 | !(phba->cfg_fof)) |
1ba981fd JS |
5613 | return NULL; |
5614 | ||
5615 | /* Attempt to create the device data to contain lun info */ | |
5616 | ||
5617 | if (atomic_create) | |
5618 | memory_flags = GFP_ATOMIC; | |
5619 | else | |
5620 | memory_flags = GFP_KERNEL; | |
5621 | lun_info = mempool_alloc(phba->device_data_mem_pool, memory_flags); | |
5622 | if (!lun_info) | |
5623 | return NULL; | |
5624 | INIT_LIST_HEAD(&lun_info->listentry); | |
5625 | lun_info->rport_data = NULL; | |
5626 | memcpy(&lun_info->device_id.vport_wwpn, vport_wwpn, | |
5627 | sizeof(struct lpfc_name)); | |
5628 | memcpy(&lun_info->device_id.target_wwpn, target_wwpn, | |
5629 | sizeof(struct lpfc_name)); | |
5630 | lun_info->device_id.lun = lun; | |
5631 | lun_info->oas_enabled = false; | |
b5749fe1 | 5632 | lun_info->priority = pri; |
1ba981fd JS |
5633 | lun_info->available = false; |
5634 | return lun_info; | |
5635 | } | |
5636 | ||
5637 | /** | |
5638 | * lpfc_delete_device_data - frees a device data structure for OAS | |
5639 | * @pha: Pointer to host bus adapter structure. | |
5640 | * @lun_info: Pointer to device data structure to free. | |
5641 | * | |
5642 | * This routine frees the previously allocated device data structure passed. | |
5643 | * | |
5644 | **/ | |
5645 | void | |
5646 | lpfc_delete_device_data(struct lpfc_hba *phba, | |
5647 | struct lpfc_device_data *lun_info) | |
5648 | { | |
5649 | ||
5650 | if (unlikely(!phba) || !lun_info || | |
f38fa0bb | 5651 | !(phba->cfg_fof)) |
1ba981fd JS |
5652 | return; |
5653 | ||
5654 | if (!list_empty(&lun_info->listentry)) | |
5655 | list_del(&lun_info->listentry); | |
5656 | mempool_free(lun_info, phba->device_data_mem_pool); | |
5657 | return; | |
5658 | } | |
5659 | ||
5660 | /** | |
5661 | * __lpfc_get_device_data - returns the device data for the specified lun | |
5662 | * @pha: Pointer to host bus adapter structure. | |
5663 | * @list: Point to list to search. | |
5664 | * @vport_wwpn: Pointer to vport's wwpn information | |
5665 | * @target_wwpn: Pointer to target's wwpn information | |
5666 | * @lun: Lun on target | |
5667 | * | |
5668 | * This routine searches the list passed for the specified lun's device data. | |
5669 | * This function does not hold locks, it is the responsibility of the caller | |
5670 | * to ensure the proper lock is held before calling the function. | |
5671 | * | |
5672 | * Return codes: | |
5673 | * NULL - Error | |
5674 | * Pointer to lpfc_device_data - Success | |
5675 | **/ | |
5676 | struct lpfc_device_data* | |
5677 | __lpfc_get_device_data(struct lpfc_hba *phba, struct list_head *list, | |
5678 | struct lpfc_name *vport_wwpn, | |
5679 | struct lpfc_name *target_wwpn, uint64_t lun) | |
5680 | { | |
5681 | ||
5682 | struct lpfc_device_data *lun_info; | |
5683 | ||
5684 | if (unlikely(!phba) || !list || !vport_wwpn || !target_wwpn || | |
f38fa0bb | 5685 | !phba->cfg_fof) |
1ba981fd JS |
5686 | return NULL; |
5687 | ||
5688 | /* Check to see if the lun is already enabled for OAS. */ | |
5689 | ||
5690 | list_for_each_entry(lun_info, list, listentry) { | |
5691 | if ((memcmp(&lun_info->device_id.vport_wwpn, vport_wwpn, | |
5692 | sizeof(struct lpfc_name)) == 0) && | |
5693 | (memcmp(&lun_info->device_id.target_wwpn, target_wwpn, | |
5694 | sizeof(struct lpfc_name)) == 0) && | |
5695 | (lun_info->device_id.lun == lun)) | |
5696 | return lun_info; | |
5697 | } | |
5698 | ||
5699 | return NULL; | |
5700 | } | |
5701 | ||
5702 | /** | |
5703 | * lpfc_find_next_oas_lun - searches for the next oas lun | |
5704 | * @pha: Pointer to host bus adapter structure. | |
5705 | * @vport_wwpn: Pointer to vport's wwpn information | |
5706 | * @target_wwpn: Pointer to target's wwpn information | |
5707 | * @starting_lun: Pointer to the lun to start searching for | |
5708 | * @found_vport_wwpn: Pointer to the found lun's vport wwpn information | |
5709 | * @found_target_wwpn: Pointer to the found lun's target wwpn information | |
5710 | * @found_lun: Pointer to the found lun. | |
5711 | * @found_lun_status: Pointer to status of the found lun. | |
5712 | * | |
5713 | * This routine searches the luns list for the specified lun | |
5714 | * or the first lun for the vport/target. If the vport wwpn contains | |
5715 | * a zero value then a specific vport is not specified. In this case | |
5716 | * any vport which contains the lun will be considered a match. If the | |
5717 | * target wwpn contains a zero value then a specific target is not specified. | |
5718 | * In this case any target which contains the lun will be considered a | |
5719 | * match. If the lun is found, the lun, vport wwpn, target wwpn and lun status | |
5720 | * are returned. The function will also return the next lun if available. | |
5721 | * If the next lun is not found, starting_lun parameter will be set to | |
5722 | * NO_MORE_OAS_LUN. | |
5723 | * | |
5724 | * Return codes: | |
5725 | * non-0 - Error | |
5726 | * 0 - Success | |
5727 | **/ | |
5728 | bool | |
5729 | lpfc_find_next_oas_lun(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn, | |
5730 | struct lpfc_name *target_wwpn, uint64_t *starting_lun, | |
5731 | struct lpfc_name *found_vport_wwpn, | |
5732 | struct lpfc_name *found_target_wwpn, | |
5733 | uint64_t *found_lun, | |
b5749fe1 JS |
5734 | uint32_t *found_lun_status, |
5735 | uint32_t *found_lun_pri) | |
1ba981fd JS |
5736 | { |
5737 | ||
5738 | unsigned long flags; | |
5739 | struct lpfc_device_data *lun_info; | |
5740 | struct lpfc_device_id *device_id; | |
5741 | uint64_t lun; | |
5742 | bool found = false; | |
5743 | ||
5744 | if (unlikely(!phba) || !vport_wwpn || !target_wwpn || | |
5745 | !starting_lun || !found_vport_wwpn || | |
5746 | !found_target_wwpn || !found_lun || !found_lun_status || | |
5747 | (*starting_lun == NO_MORE_OAS_LUN) || | |
f38fa0bb | 5748 | !phba->cfg_fof) |
1ba981fd JS |
5749 | return false; |
5750 | ||
5751 | lun = *starting_lun; | |
5752 | *found_lun = NO_MORE_OAS_LUN; | |
5753 | *starting_lun = NO_MORE_OAS_LUN; | |
5754 | ||
5755 | /* Search for lun or the lun closet in value */ | |
5756 | ||
5757 | spin_lock_irqsave(&phba->devicelock, flags); | |
5758 | list_for_each_entry(lun_info, &phba->luns, listentry) { | |
5759 | if (((wwn_to_u64(vport_wwpn->u.wwn) == 0) || | |
5760 | (memcmp(&lun_info->device_id.vport_wwpn, vport_wwpn, | |
5761 | sizeof(struct lpfc_name)) == 0)) && | |
5762 | ((wwn_to_u64(target_wwpn->u.wwn) == 0) || | |
5763 | (memcmp(&lun_info->device_id.target_wwpn, target_wwpn, | |
5764 | sizeof(struct lpfc_name)) == 0)) && | |
5765 | (lun_info->oas_enabled)) { | |
5766 | device_id = &lun_info->device_id; | |
5767 | if ((!found) && | |
5768 | ((lun == FIND_FIRST_OAS_LUN) || | |
5769 | (device_id->lun == lun))) { | |
5770 | *found_lun = device_id->lun; | |
5771 | memcpy(found_vport_wwpn, | |
5772 | &device_id->vport_wwpn, | |
5773 | sizeof(struct lpfc_name)); | |
5774 | memcpy(found_target_wwpn, | |
5775 | &device_id->target_wwpn, | |
5776 | sizeof(struct lpfc_name)); | |
5777 | if (lun_info->available) | |
5778 | *found_lun_status = | |
5779 | OAS_LUN_STATUS_EXISTS; | |
5780 | else | |
5781 | *found_lun_status = 0; | |
b5749fe1 | 5782 | *found_lun_pri = lun_info->priority; |
1ba981fd JS |
5783 | if (phba->cfg_oas_flags & OAS_FIND_ANY_VPORT) |
5784 | memset(vport_wwpn, 0x0, | |
5785 | sizeof(struct lpfc_name)); | |
5786 | if (phba->cfg_oas_flags & OAS_FIND_ANY_TARGET) | |
5787 | memset(target_wwpn, 0x0, | |
5788 | sizeof(struct lpfc_name)); | |
5789 | found = true; | |
5790 | } else if (found) { | |
5791 | *starting_lun = device_id->lun; | |
5792 | memcpy(vport_wwpn, &device_id->vport_wwpn, | |
5793 | sizeof(struct lpfc_name)); | |
5794 | memcpy(target_wwpn, &device_id->target_wwpn, | |
5795 | sizeof(struct lpfc_name)); | |
5796 | break; | |
5797 | } | |
5798 | } | |
5799 | } | |
5800 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5801 | return found; | |
5802 | } | |
5803 | ||
5804 | /** | |
5805 | * lpfc_enable_oas_lun - enables a lun for OAS operations | |
5806 | * @pha: Pointer to host bus adapter structure. | |
5807 | * @vport_wwpn: Pointer to vport's wwpn information | |
5808 | * @target_wwpn: Pointer to target's wwpn information | |
5809 | * @lun: Lun | |
5810 | * | |
5811 | * This routine enables a lun for oas operations. The routines does so by | |
5812 | * doing the following : | |
5813 | * | |
5814 | * 1) Checks to see if the device data for the lun has been created. | |
5815 | * 2) If found, sets the OAS enabled flag if not set and returns. | |
5816 | * 3) Otherwise, creates a device data structure. | |
5817 | * 4) If successfully created, indicates the device data is for an OAS lun, | |
5818 | * indicates the lun is not available and add to the list of luns. | |
5819 | * | |
5820 | * Return codes: | |
5821 | * false - Error | |
5822 | * true - Success | |
5823 | **/ | |
5824 | bool | |
5825 | lpfc_enable_oas_lun(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn, | |
c92c841c | 5826 | struct lpfc_name *target_wwpn, uint64_t lun, uint8_t pri) |
1ba981fd JS |
5827 | { |
5828 | ||
5829 | struct lpfc_device_data *lun_info; | |
5830 | unsigned long flags; | |
5831 | ||
5832 | if (unlikely(!phba) || !vport_wwpn || !target_wwpn || | |
f38fa0bb | 5833 | !phba->cfg_fof) |
1ba981fd JS |
5834 | return false; |
5835 | ||
5836 | spin_lock_irqsave(&phba->devicelock, flags); | |
5837 | ||
5838 | /* Check to see if the device data for the lun has been created */ | |
5839 | lun_info = __lpfc_get_device_data(phba, &phba->luns, vport_wwpn, | |
5840 | target_wwpn, lun); | |
5841 | if (lun_info) { | |
5842 | if (!lun_info->oas_enabled) | |
5843 | lun_info->oas_enabled = true; | |
b5749fe1 | 5844 | lun_info->priority = pri; |
1ba981fd JS |
5845 | spin_unlock_irqrestore(&phba->devicelock, flags); |
5846 | return true; | |
5847 | } | |
5848 | ||
5849 | /* Create an lun info structure and add to list of luns */ | |
5850 | lun_info = lpfc_create_device_data(phba, vport_wwpn, target_wwpn, lun, | |
b5749fe1 | 5851 | pri, false); |
1ba981fd JS |
5852 | if (lun_info) { |
5853 | lun_info->oas_enabled = true; | |
c92c841c | 5854 | lun_info->priority = pri; |
1ba981fd JS |
5855 | lun_info->available = false; |
5856 | list_add_tail(&lun_info->listentry, &phba->luns); | |
5857 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5858 | return true; | |
5859 | } | |
5860 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5861 | return false; | |
5862 | } | |
5863 | ||
5864 | /** | |
5865 | * lpfc_disable_oas_lun - disables a lun for OAS operations | |
5866 | * @pha: Pointer to host bus adapter structure. | |
5867 | * @vport_wwpn: Pointer to vport's wwpn information | |
5868 | * @target_wwpn: Pointer to target's wwpn information | |
5869 | * @lun: Lun | |
5870 | * | |
5871 | * This routine disables a lun for oas operations. The routines does so by | |
5872 | * doing the following : | |
5873 | * | |
5874 | * 1) Checks to see if the device data for the lun is created. | |
5875 | * 2) If present, clears the flag indicating this lun is for OAS. | |
5876 | * 3) If the lun is not available by the system, the device data is | |
5877 | * freed. | |
5878 | * | |
5879 | * Return codes: | |
5880 | * false - Error | |
5881 | * true - Success | |
5882 | **/ | |
5883 | bool | |
5884 | lpfc_disable_oas_lun(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn, | |
b5749fe1 | 5885 | struct lpfc_name *target_wwpn, uint64_t lun, uint8_t pri) |
1ba981fd JS |
5886 | { |
5887 | ||
5888 | struct lpfc_device_data *lun_info; | |
5889 | unsigned long flags; | |
5890 | ||
5891 | if (unlikely(!phba) || !vport_wwpn || !target_wwpn || | |
f38fa0bb | 5892 | !phba->cfg_fof) |
1ba981fd JS |
5893 | return false; |
5894 | ||
5895 | spin_lock_irqsave(&phba->devicelock, flags); | |
5896 | ||
5897 | /* Check to see if the lun is available. */ | |
5898 | lun_info = __lpfc_get_device_data(phba, | |
5899 | &phba->luns, vport_wwpn, | |
5900 | target_wwpn, lun); | |
5901 | if (lun_info) { | |
5902 | lun_info->oas_enabled = false; | |
b5749fe1 | 5903 | lun_info->priority = pri; |
1ba981fd JS |
5904 | if (!lun_info->available) |
5905 | lpfc_delete_device_data(phba, lun_info); | |
5906 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5907 | return true; | |
5908 | } | |
5909 | ||
5910 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5911 | return false; | |
5912 | } | |
92d7f7b0 | 5913 | |
895427bd JS |
5914 | static int |
5915 | lpfc_no_command(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) | |
5916 | { | |
5917 | return SCSI_MLQUEUE_HOST_BUSY; | |
5918 | } | |
5919 | ||
5920 | static int | |
5921 | lpfc_no_handler(struct scsi_cmnd *cmnd) | |
5922 | { | |
5923 | return FAILED; | |
5924 | } | |
5925 | ||
5926 | static int | |
5927 | lpfc_no_slave(struct scsi_device *sdev) | |
5928 | { | |
5929 | return -ENODEV; | |
5930 | } | |
5931 | ||
5932 | struct scsi_host_template lpfc_template_nvme = { | |
5933 | .module = THIS_MODULE, | |
5934 | .name = LPFC_DRIVER_NAME, | |
5935 | .proc_name = LPFC_DRIVER_NAME, | |
5936 | .info = lpfc_info, | |
5937 | .queuecommand = lpfc_no_command, | |
5938 | .eh_abort_handler = lpfc_no_handler, | |
5939 | .eh_device_reset_handler = lpfc_no_handler, | |
5940 | .eh_target_reset_handler = lpfc_no_handler, | |
5941 | .eh_bus_reset_handler = lpfc_no_handler, | |
5942 | .eh_host_reset_handler = lpfc_no_handler, | |
5943 | .slave_alloc = lpfc_no_slave, | |
5944 | .slave_configure = lpfc_no_slave, | |
5945 | .scan_finished = lpfc_scan_finished, | |
5946 | .this_id = -1, | |
5947 | .sg_tablesize = 1, | |
5948 | .cmd_per_lun = 1, | |
5949 | .use_clustering = ENABLE_CLUSTERING, | |
5950 | .shost_attrs = lpfc_hba_attrs, | |
5951 | .max_sectors = 0xFFFF, | |
5952 | .vendor_id = LPFC_NL_VENDOR_ID, | |
5953 | .track_queue_depth = 0, | |
5954 | }; | |
5955 | ||
96418b5e | 5956 | struct scsi_host_template lpfc_template_no_hr = { |
ea4142f6 JS |
5957 | .module = THIS_MODULE, |
5958 | .name = LPFC_DRIVER_NAME, | |
08dcd4cf | 5959 | .proc_name = LPFC_DRIVER_NAME, |
ea4142f6 JS |
5960 | .info = lpfc_info, |
5961 | .queuecommand = lpfc_queuecommand, | |
856984b7 | 5962 | .eh_timed_out = fc_eh_timed_out, |
ea4142f6 JS |
5963 | .eh_abort_handler = lpfc_abort_handler, |
5964 | .eh_device_reset_handler = lpfc_device_reset_handler, | |
5965 | .eh_target_reset_handler = lpfc_target_reset_handler, | |
5966 | .eh_bus_reset_handler = lpfc_bus_reset_handler, | |
5967 | .slave_alloc = lpfc_slave_alloc, | |
5968 | .slave_configure = lpfc_slave_configure, | |
5969 | .slave_destroy = lpfc_slave_destroy, | |
5970 | .scan_finished = lpfc_scan_finished, | |
5971 | .this_id = -1, | |
5972 | .sg_tablesize = LPFC_DEFAULT_SG_SEG_CNT, | |
5973 | .cmd_per_lun = LPFC_CMD_PER_LUN, | |
5974 | .use_clustering = ENABLE_CLUSTERING, | |
5975 | .shost_attrs = lpfc_hba_attrs, | |
5976 | .max_sectors = 0xFFFF, | |
5977 | .vendor_id = LPFC_NL_VENDOR_ID, | |
5978 | .change_queue_depth = scsi_change_queue_depth, | |
ea4142f6 JS |
5979 | .track_queue_depth = 1, |
5980 | }; | |
5981 | ||
dea3101e JB |
5982 | struct scsi_host_template lpfc_template = { |
5983 | .module = THIS_MODULE, | |
5984 | .name = LPFC_DRIVER_NAME, | |
08dcd4cf | 5985 | .proc_name = LPFC_DRIVER_NAME, |
dea3101e JB |
5986 | .info = lpfc_info, |
5987 | .queuecommand = lpfc_queuecommand, | |
b6a05c82 | 5988 | .eh_timed_out = fc_eh_timed_out, |
dea3101e | 5989 | .eh_abort_handler = lpfc_abort_handler, |
bbb9d180 JS |
5990 | .eh_device_reset_handler = lpfc_device_reset_handler, |
5991 | .eh_target_reset_handler = lpfc_target_reset_handler, | |
7054a606 | 5992 | .eh_bus_reset_handler = lpfc_bus_reset_handler, |
27b01b82 | 5993 | .eh_host_reset_handler = lpfc_host_reset_handler, |
dea3101e JB |
5994 | .slave_alloc = lpfc_slave_alloc, |
5995 | .slave_configure = lpfc_slave_configure, | |
5996 | .slave_destroy = lpfc_slave_destroy, | |
47a8617c | 5997 | .scan_finished = lpfc_scan_finished, |
dea3101e | 5998 | .this_id = -1, |
83108bd3 | 5999 | .sg_tablesize = LPFC_DEFAULT_SG_SEG_CNT, |
dea3101e JB |
6000 | .cmd_per_lun = LPFC_CMD_PER_LUN, |
6001 | .use_clustering = ENABLE_CLUSTERING, | |
2e0fef85 | 6002 | .shost_attrs = lpfc_hba_attrs, |
564b2960 | 6003 | .max_sectors = 0xFFFF, |
f1c3b0fc | 6004 | .vendor_id = LPFC_NL_VENDOR_ID, |
db5ed4df | 6005 | .change_queue_depth = scsi_change_queue_depth, |
c40ecc12 | 6006 | .track_queue_depth = 1, |
dea3101e | 6007 | }; |
3de2a653 JS |
6008 | |
6009 | struct scsi_host_template lpfc_vport_template = { | |
6010 | .module = THIS_MODULE, | |
6011 | .name = LPFC_DRIVER_NAME, | |
08dcd4cf | 6012 | .proc_name = LPFC_DRIVER_NAME, |
3de2a653 JS |
6013 | .info = lpfc_info, |
6014 | .queuecommand = lpfc_queuecommand, | |
b6a05c82 | 6015 | .eh_timed_out = fc_eh_timed_out, |
3de2a653 | 6016 | .eh_abort_handler = lpfc_abort_handler, |
bbb9d180 JS |
6017 | .eh_device_reset_handler = lpfc_device_reset_handler, |
6018 | .eh_target_reset_handler = lpfc_target_reset_handler, | |
3de2a653 JS |
6019 | .slave_alloc = lpfc_slave_alloc, |
6020 | .slave_configure = lpfc_slave_configure, | |
6021 | .slave_destroy = lpfc_slave_destroy, | |
6022 | .scan_finished = lpfc_scan_finished, | |
6023 | .this_id = -1, | |
83108bd3 | 6024 | .sg_tablesize = LPFC_DEFAULT_SG_SEG_CNT, |
3de2a653 JS |
6025 | .cmd_per_lun = LPFC_CMD_PER_LUN, |
6026 | .use_clustering = ENABLE_CLUSTERING, | |
6027 | .shost_attrs = lpfc_vport_attrs, | |
6028 | .max_sectors = 0xFFFF, | |
db5ed4df | 6029 | .change_queue_depth = scsi_change_queue_depth, |
c40ecc12 | 6030 | .track_queue_depth = 1, |
3de2a653 | 6031 | }; |