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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. * |
128bddac | 4 | * Copyright (C) 2017-2018 Broadcom. All Rights Reserved. The term * |
d080abe0 | 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 | 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> |
128b6f9f | 29 | #include <linux/t10-pi.h> |
737d4248 JS |
30 | #include <linux/crc-t10dif.h> |
31 | #include <net/checksum.h> | |
dea3101e | 32 | |
33 | #include <scsi/scsi.h> | |
34 | #include <scsi/scsi_device.h> | |
e2a0a9d6 | 35 | #include <scsi/scsi_eh.h> |
dea3101e | 36 | #include <scsi/scsi_host.h> |
37 | #include <scsi/scsi_tcq.h> | |
38 | #include <scsi/scsi_transport_fc.h> | |
39 | ||
40 | #include "lpfc_version.h" | |
da0436e9 | 41 | #include "lpfc_hw4.h" |
dea3101e | 42 | #include "lpfc_hw.h" |
43 | #include "lpfc_sli.h" | |
da0436e9 | 44 | #include "lpfc_sli4.h" |
ea2151b4 | 45 | #include "lpfc_nl.h" |
dea3101e | 46 | #include "lpfc_disc.h" |
dea3101e | 47 | #include "lpfc.h" |
9a6b09c0 | 48 | #include "lpfc_scsi.h" |
dea3101e | 49 | #include "lpfc_logmsg.h" |
50 | #include "lpfc_crtn.h" | |
92d7f7b0 | 51 | #include "lpfc_vport.h" |
dea3101e | 52 | |
53 | #define LPFC_RESET_WAIT 2 | |
54 | #define LPFC_ABORT_WAIT 2 | |
55 | ||
737d4248 | 56 | int _dump_buf_done = 1; |
e2a0a9d6 JS |
57 | |
58 | static char *dif_op_str[] = { | |
9a6b09c0 JS |
59 | "PROT_NORMAL", |
60 | "PROT_READ_INSERT", | |
61 | "PROT_WRITE_STRIP", | |
62 | "PROT_READ_STRIP", | |
63 | "PROT_WRITE_INSERT", | |
64 | "PROT_READ_PASS", | |
65 | "PROT_WRITE_PASS", | |
66 | }; | |
67 | ||
f9bb2da1 JS |
68 | struct scsi_dif_tuple { |
69 | __be16 guard_tag; /* Checksum */ | |
70 | __be16 app_tag; /* Opaque storage */ | |
71 | __be32 ref_tag; /* Target LBA or indirect LBA */ | |
72 | }; | |
73 | ||
1ba981fd JS |
74 | static struct lpfc_rport_data * |
75 | lpfc_rport_data_from_scsi_device(struct scsi_device *sdev) | |
76 | { | |
77 | struct lpfc_vport *vport = (struct lpfc_vport *)sdev->host->hostdata; | |
78 | ||
f38fa0bb | 79 | if (vport->phba->cfg_fof) |
1ba981fd JS |
80 | return ((struct lpfc_device_data *)sdev->hostdata)->rport_data; |
81 | else | |
82 | return (struct lpfc_rport_data *)sdev->hostdata; | |
83 | } | |
84 | ||
da0436e9 JS |
85 | static void |
86 | lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb); | |
1c6f4ef5 JS |
87 | static void |
88 | lpfc_release_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb); | |
9c6aa9d7 JS |
89 | static int |
90 | lpfc_prot_group_type(struct lpfc_hba *phba, struct scsi_cmnd *sc); | |
e2a0a9d6 JS |
91 | |
92 | static void | |
6a9c52cf | 93 | lpfc_debug_save_data(struct lpfc_hba *phba, struct scsi_cmnd *cmnd) |
e2a0a9d6 JS |
94 | { |
95 | void *src, *dst; | |
96 | struct scatterlist *sgde = scsi_sglist(cmnd); | |
97 | ||
98 | if (!_dump_buf_data) { | |
6a9c52cf JS |
99 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
100 | "9050 BLKGRD: ERROR %s _dump_buf_data is NULL\n", | |
e2a0a9d6 JS |
101 | __func__); |
102 | return; | |
103 | } | |
104 | ||
105 | ||
106 | if (!sgde) { | |
6a9c52cf JS |
107 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
108 | "9051 BLKGRD: ERROR: data scatterlist is null\n"); | |
e2a0a9d6 JS |
109 | return; |
110 | } | |
111 | ||
112 | dst = (void *) _dump_buf_data; | |
113 | while (sgde) { | |
114 | src = sg_virt(sgde); | |
115 | memcpy(dst, src, sgde->length); | |
116 | dst += sgde->length; | |
117 | sgde = sg_next(sgde); | |
118 | } | |
119 | } | |
120 | ||
121 | static void | |
6a9c52cf | 122 | lpfc_debug_save_dif(struct lpfc_hba *phba, struct scsi_cmnd *cmnd) |
e2a0a9d6 JS |
123 | { |
124 | void *src, *dst; | |
125 | struct scatterlist *sgde = scsi_prot_sglist(cmnd); | |
126 | ||
127 | if (!_dump_buf_dif) { | |
6a9c52cf JS |
128 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
129 | "9052 BLKGRD: ERROR %s _dump_buf_data is NULL\n", | |
e2a0a9d6 JS |
130 | __func__); |
131 | return; | |
132 | } | |
133 | ||
134 | if (!sgde) { | |
6a9c52cf JS |
135 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
136 | "9053 BLKGRD: ERROR: prot scatterlist is null\n"); | |
e2a0a9d6 JS |
137 | return; |
138 | } | |
139 | ||
140 | dst = _dump_buf_dif; | |
141 | while (sgde) { | |
142 | src = sg_virt(sgde); | |
143 | memcpy(dst, src, sgde->length); | |
144 | dst += sgde->length; | |
145 | sgde = sg_next(sgde); | |
146 | } | |
147 | } | |
148 | ||
9c6aa9d7 JS |
149 | static inline unsigned |
150 | lpfc_cmd_blksize(struct scsi_cmnd *sc) | |
151 | { | |
152 | return sc->device->sector_size; | |
153 | } | |
154 | ||
155 | #define LPFC_CHECK_PROTECT_GUARD 1 | |
156 | #define LPFC_CHECK_PROTECT_REF 2 | |
157 | static inline unsigned | |
158 | lpfc_cmd_protect(struct scsi_cmnd *sc, int flag) | |
159 | { | |
160 | return 1; | |
161 | } | |
162 | ||
163 | static inline unsigned | |
164 | lpfc_cmd_guard_csum(struct scsi_cmnd *sc) | |
165 | { | |
166 | if (lpfc_prot_group_type(NULL, sc) == LPFC_PG_TYPE_NO_DIF) | |
167 | return 0; | |
168 | if (scsi_host_get_guard(sc->device->host) == SHOST_DIX_GUARD_IP) | |
169 | return 1; | |
170 | return 0; | |
171 | } | |
172 | ||
f1126688 JS |
173 | /** |
174 | * lpfc_sli4_set_rsp_sgl_last - Set the last bit in the response sge. | |
175 | * @phba: Pointer to HBA object. | |
176 | * @lpfc_cmd: lpfc scsi command object pointer. | |
177 | * | |
178 | * This function is called from the lpfc_prep_task_mgmt_cmd function to | |
179 | * set the last bit in the response sge entry. | |
180 | **/ | |
181 | static void | |
182 | lpfc_sli4_set_rsp_sgl_last(struct lpfc_hba *phba, | |
183 | struct lpfc_scsi_buf *lpfc_cmd) | |
184 | { | |
185 | struct sli4_sge *sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl; | |
186 | if (sgl) { | |
187 | sgl += 1; | |
188 | sgl->word2 = le32_to_cpu(sgl->word2); | |
189 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
190 | sgl->word2 = cpu_to_le32(sgl->word2); | |
191 | } | |
192 | } | |
193 | ||
ea2151b4 | 194 | /** |
3621a710 | 195 | * lpfc_update_stats - Update statistical data for the command completion |
ea2151b4 JS |
196 | * @phba: Pointer to HBA object. |
197 | * @lpfc_cmd: lpfc scsi command object pointer. | |
198 | * | |
199 | * This function is called when there is a command completion and this | |
200 | * function updates the statistical data for the command completion. | |
201 | **/ | |
202 | static void | |
203 | lpfc_update_stats(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) | |
204 | { | |
205 | struct lpfc_rport_data *rdata = lpfc_cmd->rdata; | |
206 | struct lpfc_nodelist *pnode = rdata->pnode; | |
207 | struct scsi_cmnd *cmd = lpfc_cmd->pCmd; | |
208 | unsigned long flags; | |
209 | struct Scsi_Host *shost = cmd->device->host; | |
210 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
211 | unsigned long latency; | |
212 | int i; | |
213 | ||
214 | if (cmd->result) | |
215 | return; | |
216 | ||
9f1e1b50 JS |
217 | latency = jiffies_to_msecs((long)jiffies - (long)lpfc_cmd->start_time); |
218 | ||
ea2151b4 JS |
219 | spin_lock_irqsave(shost->host_lock, flags); |
220 | if (!vport->stat_data_enabled || | |
221 | vport->stat_data_blocked || | |
5989b8d4 | 222 | !pnode || |
ea2151b4 JS |
223 | !pnode->lat_data || |
224 | (phba->bucket_type == LPFC_NO_BUCKET)) { | |
225 | spin_unlock_irqrestore(shost->host_lock, flags); | |
226 | return; | |
227 | } | |
ea2151b4 JS |
228 | |
229 | if (phba->bucket_type == LPFC_LINEAR_BUCKET) { | |
230 | i = (latency + phba->bucket_step - 1 - phba->bucket_base)/ | |
231 | phba->bucket_step; | |
9f1e1b50 JS |
232 | /* check array subscript bounds */ |
233 | if (i < 0) | |
234 | i = 0; | |
235 | else if (i >= LPFC_MAX_BUCKET_COUNT) | |
236 | i = LPFC_MAX_BUCKET_COUNT - 1; | |
ea2151b4 JS |
237 | } else { |
238 | for (i = 0; i < LPFC_MAX_BUCKET_COUNT-1; i++) | |
239 | if (latency <= (phba->bucket_base + | |
240 | ((1<<i)*phba->bucket_step))) | |
241 | break; | |
242 | } | |
243 | ||
244 | pnode->lat_data[i].cmd_count++; | |
245 | spin_unlock_irqrestore(shost->host_lock, flags); | |
246 | } | |
247 | ||
9bad7671 | 248 | /** |
3621a710 | 249 | * lpfc_rampdown_queue_depth - Post RAMP_DOWN_QUEUE event to worker thread |
9bad7671 JS |
250 | * @phba: The Hba for which this call is being executed. |
251 | * | |
252 | * This routine is called when there is resource error in driver or firmware. | |
253 | * This routine posts WORKER_RAMP_DOWN_QUEUE event for @phba. This routine | |
254 | * posts at most 1 event each second. This routine wakes up worker thread of | |
255 | * @phba to process WORKER_RAM_DOWN_EVENT event. | |
256 | * | |
257 | * This routine should be called with no lock held. | |
258 | **/ | |
92d7f7b0 | 259 | void |
eaf15d5b | 260 | lpfc_rampdown_queue_depth(struct lpfc_hba *phba) |
92d7f7b0 JS |
261 | { |
262 | unsigned long flags; | |
5e9d9b82 | 263 | uint32_t evt_posted; |
0d4aec13 | 264 | unsigned long expires; |
92d7f7b0 JS |
265 | |
266 | spin_lock_irqsave(&phba->hbalock, flags); | |
267 | atomic_inc(&phba->num_rsrc_err); | |
268 | phba->last_rsrc_error_time = jiffies; | |
269 | ||
0d4aec13 MS |
270 | expires = phba->last_ramp_down_time + QUEUE_RAMP_DOWN_INTERVAL; |
271 | if (time_after(expires, jiffies)) { | |
92d7f7b0 JS |
272 | spin_unlock_irqrestore(&phba->hbalock, flags); |
273 | return; | |
274 | } | |
275 | ||
276 | phba->last_ramp_down_time = jiffies; | |
277 | ||
278 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
279 | ||
280 | spin_lock_irqsave(&phba->pport->work_port_lock, flags); | |
5e9d9b82 JS |
281 | evt_posted = phba->pport->work_port_events & WORKER_RAMP_DOWN_QUEUE; |
282 | if (!evt_posted) | |
92d7f7b0 | 283 | phba->pport->work_port_events |= WORKER_RAMP_DOWN_QUEUE; |
92d7f7b0 JS |
284 | spin_unlock_irqrestore(&phba->pport->work_port_lock, flags); |
285 | ||
5e9d9b82 JS |
286 | if (!evt_posted) |
287 | lpfc_worker_wake_up(phba); | |
92d7f7b0 JS |
288 | return; |
289 | } | |
290 | ||
9bad7671 | 291 | /** |
3621a710 | 292 | * lpfc_ramp_down_queue_handler - WORKER_RAMP_DOWN_QUEUE event handler |
9bad7671 JS |
293 | * @phba: The Hba for which this call is being executed. |
294 | * | |
295 | * This routine is called to process WORKER_RAMP_DOWN_QUEUE event for worker | |
296 | * thread.This routine reduces queue depth for all scsi device on each vport | |
297 | * associated with @phba. | |
298 | **/ | |
92d7f7b0 JS |
299 | void |
300 | lpfc_ramp_down_queue_handler(struct lpfc_hba *phba) | |
301 | { | |
549e55cd JS |
302 | struct lpfc_vport **vports; |
303 | struct Scsi_Host *shost; | |
92d7f7b0 | 304 | struct scsi_device *sdev; |
5ffc266e | 305 | unsigned long new_queue_depth; |
92d7f7b0 | 306 | unsigned long num_rsrc_err, num_cmd_success; |
549e55cd | 307 | int i; |
92d7f7b0 JS |
308 | |
309 | num_rsrc_err = atomic_read(&phba->num_rsrc_err); | |
310 | num_cmd_success = atomic_read(&phba->num_cmd_success); | |
311 | ||
75ad83a4 JS |
312 | /* |
313 | * The error and success command counters are global per | |
314 | * driver instance. If another handler has already | |
315 | * operated on this error event, just exit. | |
316 | */ | |
317 | if (num_rsrc_err == 0) | |
318 | return; | |
319 | ||
549e55cd JS |
320 | vports = lpfc_create_vport_work_array(phba); |
321 | if (vports != NULL) | |
21e9a0a5 | 322 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
549e55cd JS |
323 | shost = lpfc_shost_from_vport(vports[i]); |
324 | shost_for_each_device(sdev, shost) { | |
92d7f7b0 | 325 | new_queue_depth = |
549e55cd JS |
326 | sdev->queue_depth * num_rsrc_err / |
327 | (num_rsrc_err + num_cmd_success); | |
328 | if (!new_queue_depth) | |
329 | new_queue_depth = sdev->queue_depth - 1; | |
330 | else | |
331 | new_queue_depth = sdev->queue_depth - | |
332 | new_queue_depth; | |
db5ed4df | 333 | scsi_change_queue_depth(sdev, new_queue_depth); |
549e55cd | 334 | } |
92d7f7b0 | 335 | } |
09372820 | 336 | lpfc_destroy_vport_work_array(phba, vports); |
92d7f7b0 JS |
337 | atomic_set(&phba->num_rsrc_err, 0); |
338 | atomic_set(&phba->num_cmd_success, 0); | |
339 | } | |
340 | ||
a8e497d5 | 341 | /** |
3621a710 | 342 | * lpfc_scsi_dev_block - set all scsi hosts to block state |
a8e497d5 JS |
343 | * @phba: Pointer to HBA context object. |
344 | * | |
345 | * This function walks vport list and set each SCSI host to block state | |
346 | * by invoking fc_remote_port_delete() routine. This function is invoked | |
347 | * with EEH when device's PCI slot has been permanently disabled. | |
348 | **/ | |
349 | void | |
350 | lpfc_scsi_dev_block(struct lpfc_hba *phba) | |
351 | { | |
352 | struct lpfc_vport **vports; | |
353 | struct Scsi_Host *shost; | |
354 | struct scsi_device *sdev; | |
355 | struct fc_rport *rport; | |
356 | int i; | |
357 | ||
358 | vports = lpfc_create_vport_work_array(phba); | |
359 | if (vports != NULL) | |
21e9a0a5 | 360 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
a8e497d5 JS |
361 | shost = lpfc_shost_from_vport(vports[i]); |
362 | shost_for_each_device(sdev, shost) { | |
363 | rport = starget_to_rport(scsi_target(sdev)); | |
364 | fc_remote_port_delete(rport); | |
365 | } | |
366 | } | |
367 | lpfc_destroy_vport_work_array(phba, vports); | |
368 | } | |
369 | ||
9bad7671 | 370 | /** |
3772a991 | 371 | * lpfc_new_scsi_buf_s3 - Scsi buffer allocator for HBA with SLI3 IF spec |
9bad7671 | 372 | * @vport: The virtual port for which this call being executed. |
3772a991 | 373 | * @num_to_allocate: The requested number of buffers to allocate. |
9bad7671 | 374 | * |
3772a991 JS |
375 | * This routine allocates a scsi buffer for device with SLI-3 interface spec, |
376 | * the scsi buffer contains all the necessary information needed to initiate | |
377 | * a SCSI I/O. The non-DMAable buffer region contains information to build | |
378 | * the IOCB. The DMAable region contains memory for the FCP CMND, FCP RSP, | |
379 | * and the initial BPL. In addition to allocating memory, the FCP CMND and | |
380 | * FCP RSP BDEs are setup in the BPL and the BPL BDE is setup in the IOCB. | |
9bad7671 JS |
381 | * |
382 | * Return codes: | |
3772a991 JS |
383 | * int - number of scsi buffers that were allocated. |
384 | * 0 = failure, less than num_to_alloc is a partial failure. | |
9bad7671 | 385 | **/ |
3772a991 JS |
386 | static int |
387 | lpfc_new_scsi_buf_s3(struct lpfc_vport *vport, int num_to_alloc) | |
dea3101e | 388 | { |
2e0fef85 | 389 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 390 | struct lpfc_scsi_buf *psb; |
391 | struct ulp_bde64 *bpl; | |
392 | IOCB_t *iocb; | |
34b02dcd JS |
393 | dma_addr_t pdma_phys_fcp_cmd; |
394 | dma_addr_t pdma_phys_fcp_rsp; | |
395 | dma_addr_t pdma_phys_bpl; | |
604a3e30 | 396 | uint16_t iotag; |
96f7077f JS |
397 | int bcnt, bpl_size; |
398 | ||
399 | bpl_size = phba->cfg_sg_dma_buf_size - | |
400 | (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp)); | |
401 | ||
402 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
403 | "9067 ALLOC %d scsi_bufs: %d (%d + %d + %d)\n", | |
404 | num_to_alloc, phba->cfg_sg_dma_buf_size, | |
405 | (int)sizeof(struct fcp_cmnd), | |
406 | (int)sizeof(struct fcp_rsp), bpl_size); | |
dea3101e | 407 | |
3772a991 JS |
408 | for (bcnt = 0; bcnt < num_to_alloc; bcnt++) { |
409 | psb = kzalloc(sizeof(struct lpfc_scsi_buf), GFP_KERNEL); | |
410 | if (!psb) | |
411 | break; | |
dea3101e | 412 | |
3772a991 JS |
413 | /* |
414 | * Get memory from the pci pool to map the virt space to pci | |
415 | * bus space for an I/O. The DMA buffer includes space for the | |
416 | * struct fcp_cmnd, struct fcp_rsp and the number of bde's | |
417 | * necessary to support the sg_tablesize. | |
418 | */ | |
771db5c0 | 419 | psb->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool, |
3772a991 JS |
420 | GFP_KERNEL, &psb->dma_handle); |
421 | if (!psb->data) { | |
422 | kfree(psb); | |
423 | break; | |
424 | } | |
425 | ||
3772a991 JS |
426 | |
427 | /* Allocate iotag for psb->cur_iocbq. */ | |
428 | iotag = lpfc_sli_next_iotag(phba, &psb->cur_iocbq); | |
429 | if (iotag == 0) { | |
771db5c0 | 430 | dma_pool_free(phba->lpfc_sg_dma_buf_pool, |
895427bd | 431 | psb->data, psb->dma_handle); |
3772a991 JS |
432 | kfree(psb); |
433 | break; | |
434 | } | |
435 | psb->cur_iocbq.iocb_flag |= LPFC_IO_FCP; | |
436 | ||
437 | psb->fcp_cmnd = psb->data; | |
438 | psb->fcp_rsp = psb->data + sizeof(struct fcp_cmnd); | |
439 | psb->fcp_bpl = psb->data + sizeof(struct fcp_cmnd) + | |
34b02dcd | 440 | sizeof(struct fcp_rsp); |
dea3101e | 441 | |
3772a991 JS |
442 | /* Initialize local short-hand pointers. */ |
443 | bpl = psb->fcp_bpl; | |
444 | pdma_phys_fcp_cmd = psb->dma_handle; | |
445 | pdma_phys_fcp_rsp = psb->dma_handle + sizeof(struct fcp_cmnd); | |
446 | pdma_phys_bpl = psb->dma_handle + sizeof(struct fcp_cmnd) + | |
447 | sizeof(struct fcp_rsp); | |
448 | ||
449 | /* | |
450 | * The first two bdes are the FCP_CMD and FCP_RSP. The balance | |
451 | * are sg list bdes. Initialize the first two and leave the | |
452 | * rest for queuecommand. | |
453 | */ | |
454 | bpl[0].addrHigh = le32_to_cpu(putPaddrHigh(pdma_phys_fcp_cmd)); | |
455 | bpl[0].addrLow = le32_to_cpu(putPaddrLow(pdma_phys_fcp_cmd)); | |
456 | bpl[0].tus.f.bdeSize = sizeof(struct fcp_cmnd); | |
457 | bpl[0].tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
458 | bpl[0].tus.w = le32_to_cpu(bpl[0].tus.w); | |
459 | ||
460 | /* Setup the physical region for the FCP RSP */ | |
461 | bpl[1].addrHigh = le32_to_cpu(putPaddrHigh(pdma_phys_fcp_rsp)); | |
462 | bpl[1].addrLow = le32_to_cpu(putPaddrLow(pdma_phys_fcp_rsp)); | |
463 | bpl[1].tus.f.bdeSize = sizeof(struct fcp_rsp); | |
464 | bpl[1].tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
465 | bpl[1].tus.w = le32_to_cpu(bpl[1].tus.w); | |
466 | ||
467 | /* | |
468 | * Since the IOCB for the FCP I/O is built into this | |
469 | * lpfc_scsi_buf, initialize it with all known data now. | |
470 | */ | |
471 | iocb = &psb->cur_iocbq.iocb; | |
472 | iocb->un.fcpi64.bdl.ulpIoTag32 = 0; | |
473 | if ((phba->sli_rev == 3) && | |
474 | !(phba->sli3_options & LPFC_SLI3_BG_ENABLED)) { | |
475 | /* fill in immediate fcp command BDE */ | |
476 | iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BDE_IMMED; | |
477 | iocb->un.fcpi64.bdl.bdeSize = sizeof(struct fcp_cmnd); | |
478 | iocb->un.fcpi64.bdl.addrLow = offsetof(IOCB_t, | |
479 | unsli3.fcp_ext.icd); | |
480 | iocb->un.fcpi64.bdl.addrHigh = 0; | |
481 | iocb->ulpBdeCount = 0; | |
482 | iocb->ulpLe = 0; | |
25985edc | 483 | /* fill in response BDE */ |
3772a991 JS |
484 | iocb->unsli3.fcp_ext.rbde.tus.f.bdeFlags = |
485 | BUFF_TYPE_BDE_64; | |
486 | iocb->unsli3.fcp_ext.rbde.tus.f.bdeSize = | |
487 | sizeof(struct fcp_rsp); | |
488 | iocb->unsli3.fcp_ext.rbde.addrLow = | |
489 | putPaddrLow(pdma_phys_fcp_rsp); | |
490 | iocb->unsli3.fcp_ext.rbde.addrHigh = | |
491 | putPaddrHigh(pdma_phys_fcp_rsp); | |
492 | } else { | |
493 | iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
494 | iocb->un.fcpi64.bdl.bdeSize = | |
495 | (2 * sizeof(struct ulp_bde64)); | |
496 | iocb->un.fcpi64.bdl.addrLow = | |
497 | putPaddrLow(pdma_phys_bpl); | |
498 | iocb->un.fcpi64.bdl.addrHigh = | |
499 | putPaddrHigh(pdma_phys_bpl); | |
500 | iocb->ulpBdeCount = 1; | |
501 | iocb->ulpLe = 1; | |
502 | } | |
503 | iocb->ulpClass = CLASS3; | |
504 | psb->status = IOSTAT_SUCCESS; | |
da0436e9 | 505 | /* Put it back into the SCSI buffer list */ |
eee8877e | 506 | psb->cur_iocbq.context1 = psb; |
1c6f4ef5 | 507 | lpfc_release_scsi_buf_s3(phba, psb); |
dea3101e | 508 | |
34b02dcd | 509 | } |
dea3101e | 510 | |
3772a991 | 511 | return bcnt; |
dea3101e | 512 | } |
513 | ||
1151e3ec JS |
514 | /** |
515 | * lpfc_sli4_vport_delete_fcp_xri_aborted -Remove all ndlp references for vport | |
516 | * @vport: pointer to lpfc vport data structure. | |
517 | * | |
518 | * This routine is invoked by the vport cleanup for deletions and the cleanup | |
519 | * for an ndlp on removal. | |
520 | **/ | |
521 | void | |
522 | lpfc_sli4_vport_delete_fcp_xri_aborted(struct lpfc_vport *vport) | |
523 | { | |
524 | struct lpfc_hba *phba = vport->phba; | |
525 | struct lpfc_scsi_buf *psb, *next_psb; | |
526 | unsigned long iflag = 0; | |
527 | ||
895427bd JS |
528 | if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) |
529 | return; | |
1151e3ec JS |
530 | spin_lock_irqsave(&phba->hbalock, iflag); |
531 | spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); | |
532 | list_for_each_entry_safe(psb, next_psb, | |
533 | &phba->sli4_hba.lpfc_abts_scsi_buf_list, list) { | |
534 | if (psb->rdata && psb->rdata->pnode | |
535 | && psb->rdata->pnode->vport == vport) | |
536 | psb->rdata = NULL; | |
537 | } | |
538 | spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); | |
539 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
540 | } | |
541 | ||
da0436e9 JS |
542 | /** |
543 | * lpfc_sli4_fcp_xri_aborted - Fast-path process of fcp xri abort | |
544 | * @phba: pointer to lpfc hba data structure. | |
545 | * @axri: pointer to the fcp xri abort wcqe structure. | |
546 | * | |
547 | * This routine is invoked by the worker thread to process a SLI4 fast-path | |
548 | * FCP aborted xri. | |
549 | **/ | |
550 | void | |
551 | lpfc_sli4_fcp_xri_aborted(struct lpfc_hba *phba, | |
552 | struct sli4_wcqe_xri_aborted *axri) | |
553 | { | |
554 | uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri); | |
19ca7609 | 555 | uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri); |
da0436e9 JS |
556 | struct lpfc_scsi_buf *psb, *next_psb; |
557 | unsigned long iflag = 0; | |
0f65ff68 JS |
558 | struct lpfc_iocbq *iocbq; |
559 | int i; | |
19ca7609 JS |
560 | struct lpfc_nodelist *ndlp; |
561 | int rrq_empty = 0; | |
895427bd | 562 | struct lpfc_sli_ring *pring = phba->sli4_hba.els_wq->pring; |
da0436e9 | 563 | |
895427bd JS |
564 | if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) |
565 | return; | |
0f65ff68 JS |
566 | spin_lock_irqsave(&phba->hbalock, iflag); |
567 | spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); | |
da0436e9 JS |
568 | list_for_each_entry_safe(psb, next_psb, |
569 | &phba->sli4_hba.lpfc_abts_scsi_buf_list, list) { | |
570 | if (psb->cur_iocbq.sli4_xritag == xri) { | |
571 | list_del(&psb->list); | |
341af102 | 572 | psb->exch_busy = 0; |
da0436e9 | 573 | psb->status = IOSTAT_SUCCESS; |
0f65ff68 JS |
574 | spin_unlock( |
575 | &phba->sli4_hba.abts_scsi_buf_list_lock); | |
1151e3ec JS |
576 | if (psb->rdata && psb->rdata->pnode) |
577 | ndlp = psb->rdata->pnode; | |
578 | else | |
579 | ndlp = NULL; | |
580 | ||
19ca7609 | 581 | rrq_empty = list_empty(&phba->active_rrq_list); |
0f65ff68 | 582 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
cb69f7de | 583 | if (ndlp) { |
ee0f4fe1 JS |
584 | lpfc_set_rrq_active(phba, ndlp, |
585 | psb->cur_iocbq.sli4_lxritag, rxid, 1); | |
cb69f7de JS |
586 | lpfc_sli4_abts_err_handler(phba, ndlp, axri); |
587 | } | |
da0436e9 | 588 | lpfc_release_scsi_buf_s4(phba, psb); |
19ca7609 JS |
589 | if (rrq_empty) |
590 | lpfc_worker_wake_up(phba); | |
da0436e9 JS |
591 | return; |
592 | } | |
593 | } | |
0f65ff68 JS |
594 | spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); |
595 | for (i = 1; i <= phba->sli.last_iotag; i++) { | |
596 | iocbq = phba->sli.iocbq_lookup[i]; | |
597 | ||
598 | if (!(iocbq->iocb_flag & LPFC_IO_FCP) || | |
599 | (iocbq->iocb_flag & LPFC_IO_LIBDFC)) | |
600 | continue; | |
601 | if (iocbq->sli4_xritag != xri) | |
602 | continue; | |
603 | psb = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq); | |
604 | psb->exch_busy = 0; | |
605 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
0e9bb8d7 | 606 | if (!list_empty(&pring->txq)) |
589a52d6 | 607 | lpfc_worker_wake_up(phba); |
0f65ff68 JS |
608 | return; |
609 | ||
610 | } | |
611 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
da0436e9 JS |
612 | } |
613 | ||
614 | /** | |
4b160ae8 | 615 | * lpfc_sli4_post_scsi_sgl_list - Post blocks of scsi buffer sgls from a list |
da0436e9 | 616 | * @phba: pointer to lpfc hba data structure. |
8a9d2e80 | 617 | * @post_sblist: pointer to the scsi buffer list. |
da0436e9 | 618 | * |
8a9d2e80 JS |
619 | * This routine walks a list of scsi buffers that was passed in. It attempts |
620 | * to construct blocks of scsi buffer sgls which contains contiguous xris and | |
621 | * uses the non-embedded SGL block post mailbox commands to post to the port. | |
622 | * For single SCSI buffer sgl with non-contiguous xri, if any, it shall use | |
623 | * embedded SGL post mailbox command for posting. The @post_sblist passed in | |
624 | * must be local list, thus no lock is needed when manipulate the list. | |
da0436e9 | 625 | * |
8a9d2e80 | 626 | * Returns: 0 = failure, non-zero number of successfully posted buffers. |
da0436e9 | 627 | **/ |
7bfe781e | 628 | static int |
8a9d2e80 JS |
629 | lpfc_sli4_post_scsi_sgl_list(struct lpfc_hba *phba, |
630 | struct list_head *post_sblist, int sb_count) | |
da0436e9 | 631 | { |
8a9d2e80 | 632 | struct lpfc_scsi_buf *psb, *psb_next; |
96f7077f | 633 | int status, sgl_size; |
8a9d2e80 JS |
634 | int post_cnt = 0, block_cnt = 0, num_posting = 0, num_posted = 0; |
635 | dma_addr_t pdma_phys_bpl1; | |
636 | int last_xritag = NO_XRI; | |
637 | LIST_HEAD(prep_sblist); | |
638 | LIST_HEAD(blck_sblist); | |
639 | LIST_HEAD(scsi_sblist); | |
640 | ||
641 | /* sanity check */ | |
642 | if (sb_count <= 0) | |
643 | return -EINVAL; | |
644 | ||
96f7077f JS |
645 | sgl_size = phba->cfg_sg_dma_buf_size - |
646 | (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp)); | |
647 | ||
8a9d2e80 JS |
648 | list_for_each_entry_safe(psb, psb_next, post_sblist, list) { |
649 | list_del_init(&psb->list); | |
650 | block_cnt++; | |
651 | if ((last_xritag != NO_XRI) && | |
652 | (psb->cur_iocbq.sli4_xritag != last_xritag + 1)) { | |
653 | /* a hole in xri block, form a sgl posting block */ | |
654 | list_splice_init(&prep_sblist, &blck_sblist); | |
655 | post_cnt = block_cnt - 1; | |
656 | /* prepare list for next posting block */ | |
657 | list_add_tail(&psb->list, &prep_sblist); | |
658 | block_cnt = 1; | |
659 | } else { | |
660 | /* prepare list for next posting block */ | |
661 | list_add_tail(&psb->list, &prep_sblist); | |
662 | /* enough sgls for non-embed sgl mbox command */ | |
663 | if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) { | |
664 | list_splice_init(&prep_sblist, &blck_sblist); | |
665 | post_cnt = block_cnt; | |
666 | block_cnt = 0; | |
da0436e9 | 667 | } |
8a9d2e80 JS |
668 | } |
669 | num_posting++; | |
670 | last_xritag = psb->cur_iocbq.sli4_xritag; | |
da0436e9 | 671 | |
8a9d2e80 JS |
672 | /* end of repost sgl list condition for SCSI buffers */ |
673 | if (num_posting == sb_count) { | |
674 | if (post_cnt == 0) { | |
675 | /* last sgl posting block */ | |
676 | list_splice_init(&prep_sblist, &blck_sblist); | |
677 | post_cnt = block_cnt; | |
678 | } else if (block_cnt == 1) { | |
679 | /* last single sgl with non-contiguous xri */ | |
96f7077f | 680 | if (sgl_size > SGL_PAGE_SIZE) |
8a9d2e80 JS |
681 | pdma_phys_bpl1 = psb->dma_phys_bpl + |
682 | SGL_PAGE_SIZE; | |
683 | else | |
684 | pdma_phys_bpl1 = 0; | |
685 | status = lpfc_sli4_post_sgl(phba, | |
686 | psb->dma_phys_bpl, | |
687 | pdma_phys_bpl1, | |
688 | psb->cur_iocbq.sli4_xritag); | |
689 | if (status) { | |
690 | /* failure, put on abort scsi list */ | |
691 | psb->exch_busy = 1; | |
692 | } else { | |
693 | /* success, put on SCSI buffer list */ | |
694 | psb->exch_busy = 0; | |
695 | psb->status = IOSTAT_SUCCESS; | |
696 | num_posted++; | |
697 | } | |
698 | /* success, put on SCSI buffer sgl list */ | |
699 | list_add_tail(&psb->list, &scsi_sblist); | |
700 | } | |
701 | } | |
da0436e9 | 702 | |
8a9d2e80 JS |
703 | /* continue until a nembed page worth of sgls */ |
704 | if (post_cnt == 0) | |
da0436e9 | 705 | continue; |
8a9d2e80 JS |
706 | |
707 | /* post block of SCSI buffer list sgls */ | |
708 | status = lpfc_sli4_post_scsi_sgl_block(phba, &blck_sblist, | |
709 | post_cnt); | |
710 | ||
711 | /* don't reset xirtag due to hole in xri block */ | |
712 | if (block_cnt == 0) | |
713 | last_xritag = NO_XRI; | |
714 | ||
715 | /* reset SCSI buffer post count for next round of posting */ | |
716 | post_cnt = 0; | |
717 | ||
718 | /* put posted SCSI buffer-sgl posted on SCSI buffer sgl list */ | |
719 | while (!list_empty(&blck_sblist)) { | |
720 | list_remove_head(&blck_sblist, psb, | |
721 | struct lpfc_scsi_buf, list); | |
da0436e9 | 722 | if (status) { |
8a9d2e80 | 723 | /* failure, put on abort scsi list */ |
341af102 | 724 | psb->exch_busy = 1; |
341af102 | 725 | } else { |
8a9d2e80 | 726 | /* success, put on SCSI buffer list */ |
341af102 | 727 | psb->exch_busy = 0; |
da0436e9 | 728 | psb->status = IOSTAT_SUCCESS; |
8a9d2e80 | 729 | num_posted++; |
341af102 | 730 | } |
8a9d2e80 | 731 | list_add_tail(&psb->list, &scsi_sblist); |
da0436e9 JS |
732 | } |
733 | } | |
8a9d2e80 JS |
734 | /* Push SCSI buffers with sgl posted to the availble list */ |
735 | while (!list_empty(&scsi_sblist)) { | |
736 | list_remove_head(&scsi_sblist, psb, | |
737 | struct lpfc_scsi_buf, list); | |
738 | lpfc_release_scsi_buf_s4(phba, psb); | |
739 | } | |
740 | return num_posted; | |
741 | } | |
742 | ||
743 | /** | |
4b160ae8 | 744 | * lpfc_sli4_repost_scsi_sgl_list - Repost all the allocated scsi buffer sgls |
8a9d2e80 JS |
745 | * @phba: pointer to lpfc hba data structure. |
746 | * | |
747 | * This routine walks the list of scsi buffers that have been allocated and | |
748 | * repost them to the port by using SGL block post. This is needed after a | |
749 | * pci_function_reset/warm_start or start. The lpfc_hba_down_post_s4 routine | |
750 | * is responsible for moving all scsi buffers on the lpfc_abts_scsi_sgl_list | |
751 | * to the lpfc_scsi_buf_list. If the repost fails, reject all scsi buffers. | |
752 | * | |
753 | * Returns: 0 = success, non-zero failure. | |
754 | **/ | |
755 | int | |
756 | lpfc_sli4_repost_scsi_sgl_list(struct lpfc_hba *phba) | |
757 | { | |
758 | LIST_HEAD(post_sblist); | |
759 | int num_posted, rc = 0; | |
760 | ||
761 | /* get all SCSI buffers need to repost to a local list */ | |
a40fc5f0 | 762 | spin_lock_irq(&phba->scsi_buf_list_get_lock); |
164cecd1 | 763 | spin_lock(&phba->scsi_buf_list_put_lock); |
a40fc5f0 JS |
764 | list_splice_init(&phba->lpfc_scsi_buf_list_get, &post_sblist); |
765 | list_splice(&phba->lpfc_scsi_buf_list_put, &post_sblist); | |
164cecd1 | 766 | spin_unlock(&phba->scsi_buf_list_put_lock); |
a40fc5f0 | 767 | spin_unlock_irq(&phba->scsi_buf_list_get_lock); |
8a9d2e80 JS |
768 | |
769 | /* post the list of scsi buffer sgls to port if available */ | |
770 | if (!list_empty(&post_sblist)) { | |
771 | num_posted = lpfc_sli4_post_scsi_sgl_list(phba, &post_sblist, | |
772 | phba->sli4_hba.scsi_xri_cnt); | |
773 | /* failed to post any scsi buffer, return error */ | |
774 | if (num_posted == 0) | |
775 | rc = -EIO; | |
776 | } | |
da0436e9 JS |
777 | return rc; |
778 | } | |
779 | ||
780 | /** | |
781 | * lpfc_new_scsi_buf_s4 - Scsi buffer allocator for HBA with SLI4 IF spec | |
782 | * @vport: The virtual port for which this call being executed. | |
783 | * @num_to_allocate: The requested number of buffers to allocate. | |
784 | * | |
8a9d2e80 | 785 | * This routine allocates scsi buffers for device with SLI-4 interface spec, |
da0436e9 | 786 | * the scsi buffer contains all the necessary information needed to initiate |
8a9d2e80 JS |
787 | * a SCSI I/O. After allocating up to @num_to_allocate SCSI buffers and put |
788 | * them on a list, it post them to the port by using SGL block post. | |
da0436e9 JS |
789 | * |
790 | * Return codes: | |
8a9d2e80 | 791 | * int - number of scsi buffers that were allocated and posted. |
da0436e9 JS |
792 | * 0 = failure, less than num_to_alloc is a partial failure. |
793 | **/ | |
794 | static int | |
795 | lpfc_new_scsi_buf_s4(struct lpfc_vport *vport, int num_to_alloc) | |
796 | { | |
797 | struct lpfc_hba *phba = vport->phba; | |
798 | struct lpfc_scsi_buf *psb; | |
799 | struct sli4_sge *sgl; | |
800 | IOCB_t *iocb; | |
801 | dma_addr_t pdma_phys_fcp_cmd; | |
802 | dma_addr_t pdma_phys_fcp_rsp; | |
96f7077f | 803 | dma_addr_t pdma_phys_bpl; |
8a9d2e80 | 804 | uint16_t iotag, lxri = 0; |
96f7077f | 805 | int bcnt, num_posted, sgl_size; |
8a9d2e80 JS |
806 | LIST_HEAD(prep_sblist); |
807 | LIST_HEAD(post_sblist); | |
808 | LIST_HEAD(scsi_sblist); | |
da0436e9 | 809 | |
96f7077f JS |
810 | sgl_size = phba->cfg_sg_dma_buf_size - |
811 | (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp)); | |
812 | ||
813 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
814 | "9068 ALLOC %d scsi_bufs: %d (%d + %d + %d)\n", | |
815 | num_to_alloc, phba->cfg_sg_dma_buf_size, sgl_size, | |
816 | (int)sizeof(struct fcp_cmnd), | |
817 | (int)sizeof(struct fcp_rsp)); | |
818 | ||
da0436e9 JS |
819 | for (bcnt = 0; bcnt < num_to_alloc; bcnt++) { |
820 | psb = kzalloc(sizeof(struct lpfc_scsi_buf), GFP_KERNEL); | |
821 | if (!psb) | |
822 | break; | |
da0436e9 | 823 | /* |
8a9d2e80 JS |
824 | * Get memory from the pci pool to map the virt space to |
825 | * pci bus space for an I/O. The DMA buffer includes space | |
826 | * for the struct fcp_cmnd, struct fcp_rsp and the number | |
827 | * of bde's necessary to support the sg_tablesize. | |
da0436e9 | 828 | */ |
771db5c0 | 829 | psb->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool, |
da0436e9 JS |
830 | GFP_KERNEL, &psb->dma_handle); |
831 | if (!psb->data) { | |
832 | kfree(psb); | |
833 | break; | |
834 | } | |
da0436e9 | 835 | |
092cb034 JS |
836 | /* |
837 | * 4K Page alignment is CRITICAL to BlockGuard, double check | |
838 | * to be sure. | |
839 | */ | |
840 | if (phba->cfg_enable_bg && (((unsigned long)(psb->data) & | |
841 | (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) { | |
771db5c0 | 842 | dma_pool_free(phba->lpfc_sg_dma_buf_pool, |
96f7077f JS |
843 | psb->data, psb->dma_handle); |
844 | kfree(psb); | |
845 | break; | |
846 | } | |
847 | ||
f7bc6434 JS |
848 | |
849 | lxri = lpfc_sli4_next_xritag(phba); | |
850 | if (lxri == NO_XRI) { | |
771db5c0 | 851 | dma_pool_free(phba->lpfc_sg_dma_buf_pool, |
895427bd | 852 | psb->data, psb->dma_handle); |
da0436e9 JS |
853 | kfree(psb); |
854 | break; | |
855 | } | |
856 | ||
f7bc6434 JS |
857 | /* Allocate iotag for psb->cur_iocbq. */ |
858 | iotag = lpfc_sli_next_iotag(phba, &psb->cur_iocbq); | |
859 | if (iotag == 0) { | |
771db5c0 | 860 | dma_pool_free(phba->lpfc_sg_dma_buf_pool, |
895427bd | 861 | psb->data, psb->dma_handle); |
da0436e9 | 862 | kfree(psb); |
f7bc6434 | 863 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, |
4b160ae8 | 864 | "3368 Failed to allocate IOTAG for" |
f7bc6434 JS |
865 | " XRI:0x%x\n", lxri); |
866 | lpfc_sli4_free_xri(phba, lxri); | |
da0436e9 JS |
867 | break; |
868 | } | |
6d368e53 JS |
869 | psb->cur_iocbq.sli4_lxritag = lxri; |
870 | psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; | |
da0436e9 | 871 | psb->cur_iocbq.iocb_flag |= LPFC_IO_FCP; |
da0436e9 | 872 | psb->fcp_bpl = psb->data; |
96f7077f | 873 | psb->fcp_cmnd = (psb->data + sgl_size); |
da0436e9 JS |
874 | psb->fcp_rsp = (struct fcp_rsp *)((uint8_t *)psb->fcp_cmnd + |
875 | sizeof(struct fcp_cmnd)); | |
876 | ||
877 | /* Initialize local short-hand pointers. */ | |
878 | sgl = (struct sli4_sge *)psb->fcp_bpl; | |
879 | pdma_phys_bpl = psb->dma_handle; | |
96f7077f | 880 | pdma_phys_fcp_cmd = (psb->dma_handle + sgl_size); |
da0436e9 JS |
881 | pdma_phys_fcp_rsp = pdma_phys_fcp_cmd + sizeof(struct fcp_cmnd); |
882 | ||
883 | /* | |
8a9d2e80 JS |
884 | * The first two bdes are the FCP_CMD and FCP_RSP. |
885 | * The balance are sg list bdes. Initialize the | |
886 | * first two and leave the rest for queuecommand. | |
da0436e9 JS |
887 | */ |
888 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(pdma_phys_fcp_cmd)); | |
889 | sgl->addr_lo = cpu_to_le32(putPaddrLow(pdma_phys_fcp_cmd)); | |
0558056c | 890 | sgl->word2 = le32_to_cpu(sgl->word2); |
da0436e9 JS |
891 | bf_set(lpfc_sli4_sge_last, sgl, 0); |
892 | sgl->word2 = cpu_to_le32(sgl->word2); | |
28baac74 | 893 | sgl->sge_len = cpu_to_le32(sizeof(struct fcp_cmnd)); |
da0436e9 JS |
894 | sgl++; |
895 | ||
896 | /* Setup the physical region for the FCP RSP */ | |
897 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(pdma_phys_fcp_rsp)); | |
898 | sgl->addr_lo = cpu_to_le32(putPaddrLow(pdma_phys_fcp_rsp)); | |
0558056c | 899 | sgl->word2 = le32_to_cpu(sgl->word2); |
da0436e9 JS |
900 | bf_set(lpfc_sli4_sge_last, sgl, 1); |
901 | sgl->word2 = cpu_to_le32(sgl->word2); | |
28baac74 | 902 | sgl->sge_len = cpu_to_le32(sizeof(struct fcp_rsp)); |
da0436e9 JS |
903 | |
904 | /* | |
905 | * Since the IOCB for the FCP I/O is built into this | |
906 | * lpfc_scsi_buf, initialize it with all known data now. | |
907 | */ | |
908 | iocb = &psb->cur_iocbq.iocb; | |
909 | iocb->un.fcpi64.bdl.ulpIoTag32 = 0; | |
910 | iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BDE_64; | |
911 | /* setting the BLP size to 2 * sizeof BDE may not be correct. | |
912 | * We are setting the bpl to point to out sgl. An sgl's | |
913 | * entries are 16 bytes, a bpl entries are 12 bytes. | |
914 | */ | |
915 | iocb->un.fcpi64.bdl.bdeSize = sizeof(struct fcp_cmnd); | |
916 | iocb->un.fcpi64.bdl.addrLow = putPaddrLow(pdma_phys_fcp_cmd); | |
917 | iocb->un.fcpi64.bdl.addrHigh = putPaddrHigh(pdma_phys_fcp_cmd); | |
918 | iocb->ulpBdeCount = 1; | |
919 | iocb->ulpLe = 1; | |
920 | iocb->ulpClass = CLASS3; | |
8a9d2e80 | 921 | psb->cur_iocbq.context1 = psb; |
da0436e9 | 922 | psb->dma_phys_bpl = pdma_phys_bpl; |
da0436e9 | 923 | |
8a9d2e80 JS |
924 | /* add the scsi buffer to a post list */ |
925 | list_add_tail(&psb->list, &post_sblist); | |
a40fc5f0 | 926 | spin_lock_irq(&phba->scsi_buf_list_get_lock); |
8a9d2e80 | 927 | phba->sli4_hba.scsi_xri_cnt++; |
a40fc5f0 | 928 | spin_unlock_irq(&phba->scsi_buf_list_get_lock); |
8a9d2e80 | 929 | } |
895427bd | 930 | lpfc_printf_log(phba, KERN_INFO, LOG_BG | LOG_FCP, |
8a9d2e80 JS |
931 | "3021 Allocate %d out of %d requested new SCSI " |
932 | "buffers\n", bcnt, num_to_alloc); | |
933 | ||
934 | /* post the list of scsi buffer sgls to port if available */ | |
935 | if (!list_empty(&post_sblist)) | |
936 | num_posted = lpfc_sli4_post_scsi_sgl_list(phba, | |
937 | &post_sblist, bcnt); | |
938 | else | |
939 | num_posted = 0; | |
940 | ||
941 | return num_posted; | |
da0436e9 JS |
942 | } |
943 | ||
9bad7671 | 944 | /** |
3772a991 JS |
945 | * lpfc_new_scsi_buf - Wrapper funciton for scsi buffer allocator |
946 | * @vport: The virtual port for which this call being executed. | |
947 | * @num_to_allocate: The requested number of buffers to allocate. | |
948 | * | |
949 | * This routine wraps the actual SCSI buffer allocator function pointer from | |
950 | * the lpfc_hba struct. | |
951 | * | |
952 | * Return codes: | |
953 | * int - number of scsi buffers that were allocated. | |
954 | * 0 = failure, less than num_to_alloc is a partial failure. | |
955 | **/ | |
956 | static inline int | |
957 | lpfc_new_scsi_buf(struct lpfc_vport *vport, int num_to_alloc) | |
958 | { | |
959 | return vport->phba->lpfc_new_scsi_buf(vport, num_to_alloc); | |
960 | } | |
961 | ||
962 | /** | |
19ca7609 | 963 | * lpfc_get_scsi_buf_s3 - Get a scsi buffer from lpfc_scsi_buf_list of the HBA |
3772a991 | 964 | * @phba: The HBA for which this call is being executed. |
9bad7671 JS |
965 | * |
966 | * This routine removes a scsi buffer from head of @phba lpfc_scsi_buf_list list | |
967 | * and returns to caller. | |
968 | * | |
969 | * Return codes: | |
970 | * NULL - Error | |
971 | * Pointer to lpfc_scsi_buf - Success | |
972 | **/ | |
455c53ec | 973 | static struct lpfc_scsi_buf* |
19ca7609 | 974 | lpfc_get_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) |
dea3101e | 975 | { |
0bd4ca25 | 976 | struct lpfc_scsi_buf * lpfc_cmd = NULL; |
a40fc5f0 | 977 | struct list_head *scsi_buf_list_get = &phba->lpfc_scsi_buf_list_get; |
164cecd1 | 978 | unsigned long iflag = 0; |
a40fc5f0 | 979 | |
164cecd1 | 980 | spin_lock_irqsave(&phba->scsi_buf_list_get_lock, iflag); |
a40fc5f0 JS |
981 | list_remove_head(scsi_buf_list_get, lpfc_cmd, struct lpfc_scsi_buf, |
982 | list); | |
983 | if (!lpfc_cmd) { | |
164cecd1 | 984 | spin_lock(&phba->scsi_buf_list_put_lock); |
a40fc5f0 JS |
985 | list_splice(&phba->lpfc_scsi_buf_list_put, |
986 | &phba->lpfc_scsi_buf_list_get); | |
987 | INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); | |
988 | list_remove_head(scsi_buf_list_get, lpfc_cmd, | |
989 | struct lpfc_scsi_buf, list); | |
164cecd1 | 990 | spin_unlock(&phba->scsi_buf_list_put_lock); |
1dcb58e5 | 991 | } |
164cecd1 | 992 | spin_unlock_irqrestore(&phba->scsi_buf_list_get_lock, iflag); |
0bd4ca25 JSEC |
993 | return lpfc_cmd; |
994 | } | |
19ca7609 JS |
995 | /** |
996 | * lpfc_get_scsi_buf_s4 - Get a scsi buffer from lpfc_scsi_buf_list of the HBA | |
997 | * @phba: The HBA for which this call is being executed. | |
998 | * | |
999 | * This routine removes a scsi buffer from head of @phba lpfc_scsi_buf_list list | |
1000 | * and returns to caller. | |
1001 | * | |
1002 | * Return codes: | |
1003 | * NULL - Error | |
1004 | * Pointer to lpfc_scsi_buf - Success | |
1005 | **/ | |
1006 | static struct lpfc_scsi_buf* | |
1007 | lpfc_get_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) | |
1008 | { | |
3be30e0e | 1009 | struct lpfc_scsi_buf *lpfc_cmd, *lpfc_cmd_next; |
164cecd1 | 1010 | unsigned long iflag = 0; |
19ca7609 JS |
1011 | int found = 0; |
1012 | ||
164cecd1 | 1013 | spin_lock_irqsave(&phba->scsi_buf_list_get_lock, iflag); |
3be30e0e JS |
1014 | list_for_each_entry_safe(lpfc_cmd, lpfc_cmd_next, |
1015 | &phba->lpfc_scsi_buf_list_get, list) { | |
19ca7609 | 1016 | if (lpfc_test_rrq_active(phba, ndlp, |
ee0f4fe1 | 1017 | lpfc_cmd->cur_iocbq.sli4_lxritag)) |
1151e3ec JS |
1018 | continue; |
1019 | list_del(&lpfc_cmd->list); | |
19ca7609 | 1020 | found = 1; |
1151e3ec | 1021 | break; |
19ca7609 | 1022 | } |
a40fc5f0 | 1023 | if (!found) { |
164cecd1 | 1024 | spin_lock(&phba->scsi_buf_list_put_lock); |
a40fc5f0 JS |
1025 | list_splice(&phba->lpfc_scsi_buf_list_put, |
1026 | &phba->lpfc_scsi_buf_list_get); | |
1027 | INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); | |
164cecd1 | 1028 | spin_unlock(&phba->scsi_buf_list_put_lock); |
3be30e0e JS |
1029 | list_for_each_entry_safe(lpfc_cmd, lpfc_cmd_next, |
1030 | &phba->lpfc_scsi_buf_list_get, list) { | |
a40fc5f0 JS |
1031 | if (lpfc_test_rrq_active( |
1032 | phba, ndlp, lpfc_cmd->cur_iocbq.sli4_lxritag)) | |
1033 | continue; | |
1034 | list_del(&lpfc_cmd->list); | |
1035 | found = 1; | |
1036 | break; | |
1037 | } | |
1038 | } | |
164cecd1 | 1039 | spin_unlock_irqrestore(&phba->scsi_buf_list_get_lock, iflag); |
1151e3ec JS |
1040 | if (!found) |
1041 | return NULL; | |
a40fc5f0 | 1042 | return lpfc_cmd; |
19ca7609 JS |
1043 | } |
1044 | /** | |
1045 | * lpfc_get_scsi_buf - Get a scsi buffer from lpfc_scsi_buf_list of the HBA | |
1046 | * @phba: The HBA for which this call is being executed. | |
1047 | * | |
1048 | * This routine removes a scsi buffer from head of @phba lpfc_scsi_buf_list list | |
1049 | * and returns to caller. | |
1050 | * | |
1051 | * Return codes: | |
1052 | * NULL - Error | |
1053 | * Pointer to lpfc_scsi_buf - Success | |
1054 | **/ | |
1055 | static struct lpfc_scsi_buf* | |
1056 | lpfc_get_scsi_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) | |
1057 | { | |
1058 | return phba->lpfc_get_scsi_buf(phba, ndlp); | |
1059 | } | |
dea3101e | 1060 | |
9bad7671 | 1061 | /** |
3772a991 | 1062 | * lpfc_release_scsi_buf - Return a scsi buffer back to hba scsi buf list |
9bad7671 JS |
1063 | * @phba: The Hba for which this call is being executed. |
1064 | * @psb: The scsi buffer which is being released. | |
1065 | * | |
1066 | * This routine releases @psb scsi buffer by adding it to tail of @phba | |
1067 | * lpfc_scsi_buf_list list. | |
1068 | **/ | |
0bd4ca25 | 1069 | static void |
3772a991 | 1070 | lpfc_release_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) |
0bd4ca25 | 1071 | { |
875fbdfe | 1072 | unsigned long iflag = 0; |
dea3101e | 1073 | |
a40fc5f0 JS |
1074 | psb->seg_cnt = 0; |
1075 | psb->nonsg_phys = 0; | |
1076 | psb->prot_seg_cnt = 0; | |
1077 | ||
1078 | spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag); | |
0bd4ca25 | 1079 | psb->pCmd = NULL; |
6a485eb9 | 1080 | psb->cur_iocbq.iocb_flag = LPFC_IO_FCP; |
a40fc5f0 JS |
1081 | list_add_tail(&psb->list, &phba->lpfc_scsi_buf_list_put); |
1082 | spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag); | |
dea3101e | 1083 | } |
1084 | ||
da0436e9 JS |
1085 | /** |
1086 | * lpfc_release_scsi_buf_s4: Return a scsi buffer back to hba scsi buf list. | |
1087 | * @phba: The Hba for which this call is being executed. | |
1088 | * @psb: The scsi buffer which is being released. | |
1089 | * | |
1090 | * This routine releases @psb scsi buffer by adding it to tail of @phba | |
1091 | * lpfc_scsi_buf_list list. For SLI4 XRI's are tied to the scsi buffer | |
1092 | * and cannot be reused for at least RA_TOV amount of time if it was | |
1093 | * aborted. | |
1094 | **/ | |
1095 | static void | |
1096 | lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) | |
1097 | { | |
1098 | unsigned long iflag = 0; | |
1099 | ||
a40fc5f0 JS |
1100 | psb->seg_cnt = 0; |
1101 | psb->nonsg_phys = 0; | |
1102 | psb->prot_seg_cnt = 0; | |
1103 | ||
341af102 | 1104 | if (psb->exch_busy) { |
da0436e9 JS |
1105 | spin_lock_irqsave(&phba->sli4_hba.abts_scsi_buf_list_lock, |
1106 | iflag); | |
1107 | psb->pCmd = NULL; | |
1108 | list_add_tail(&psb->list, | |
1109 | &phba->sli4_hba.lpfc_abts_scsi_buf_list); | |
1110 | spin_unlock_irqrestore(&phba->sli4_hba.abts_scsi_buf_list_lock, | |
1111 | iflag); | |
1112 | } else { | |
da0436e9 | 1113 | psb->pCmd = NULL; |
6a485eb9 | 1114 | psb->cur_iocbq.iocb_flag = LPFC_IO_FCP; |
a40fc5f0 JS |
1115 | spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag); |
1116 | list_add_tail(&psb->list, &phba->lpfc_scsi_buf_list_put); | |
1117 | spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag); | |
da0436e9 JS |
1118 | } |
1119 | } | |
1120 | ||
9bad7671 | 1121 | /** |
3772a991 JS |
1122 | * lpfc_release_scsi_buf: Return a scsi buffer back to hba scsi buf list. |
1123 | * @phba: The Hba for which this call is being executed. | |
1124 | * @psb: The scsi buffer which is being released. | |
1125 | * | |
1126 | * This routine releases @psb scsi buffer by adding it to tail of @phba | |
1127 | * lpfc_scsi_buf_list list. | |
1128 | **/ | |
1129 | static void | |
1130 | lpfc_release_scsi_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) | |
1131 | { | |
1132 | ||
1133 | phba->lpfc_release_scsi_buf(phba, psb); | |
1134 | } | |
1135 | ||
1136 | /** | |
1137 | * lpfc_scsi_prep_dma_buf_s3 - DMA mapping for scsi buffer to SLI3 IF spec | |
9bad7671 JS |
1138 | * @phba: The Hba for which this call is being executed. |
1139 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
1140 | * | |
1141 | * This routine does the pci dma mapping for scatter-gather list of scsi cmnd | |
3772a991 | 1142 | * field of @lpfc_cmd for device with SLI-3 interface spec. This routine scans |
4b160ae8 | 1143 | * through sg elements and format the bde. This routine also initializes all |
3772a991 | 1144 | * IOCB fields which are dependent on scsi command request buffer. |
9bad7671 JS |
1145 | * |
1146 | * Return codes: | |
1147 | * 1 - Error | |
1148 | * 0 - Success | |
1149 | **/ | |
dea3101e | 1150 | static int |
3772a991 | 1151 | lpfc_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) |
dea3101e | 1152 | { |
1153 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
1154 | struct scatterlist *sgel = NULL; | |
1155 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
1156 | struct ulp_bde64 *bpl = lpfc_cmd->fcp_bpl; | |
0f65ff68 | 1157 | struct lpfc_iocbq *iocbq = &lpfc_cmd->cur_iocbq; |
dea3101e | 1158 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; |
34b02dcd | 1159 | struct ulp_bde64 *data_bde = iocb_cmd->unsli3.fcp_ext.dbde; |
dea3101e | 1160 | dma_addr_t physaddr; |
34b02dcd | 1161 | uint32_t num_bde = 0; |
a0b4f78f | 1162 | int nseg, datadir = scsi_cmnd->sc_data_direction; |
dea3101e | 1163 | |
1164 | /* | |
1165 | * There are three possibilities here - use scatter-gather segment, use | |
1166 | * the single mapping, or neither. Start the lpfc command prep by | |
1167 | * bumping the bpl beyond the fcp_cmnd and fcp_rsp regions to the first | |
1168 | * data bde entry. | |
1169 | */ | |
1170 | bpl += 2; | |
c59fd9eb | 1171 | if (scsi_sg_count(scsi_cmnd)) { |
dea3101e | 1172 | /* |
1173 | * The driver stores the segment count returned from pci_map_sg | |
1174 | * because this a count of dma-mappings used to map the use_sg | |
1175 | * pages. They are not guaranteed to be the same for those | |
1176 | * architectures that implement an IOMMU. | |
1177 | */ | |
dea3101e | 1178 | |
c59fd9eb FT |
1179 | nseg = dma_map_sg(&phba->pcidev->dev, scsi_sglist(scsi_cmnd), |
1180 | scsi_sg_count(scsi_cmnd), datadir); | |
1181 | if (unlikely(!nseg)) | |
1182 | return 1; | |
1183 | ||
a0b4f78f | 1184 | lpfc_cmd->seg_cnt = nseg; |
dea3101e | 1185 | if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) { |
6a9c52cf JS |
1186 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
1187 | "9064 BLKGRD: %s: Too many sg segments from " | |
e2a0a9d6 | 1188 | "dma_map_sg. Config %d, seg_cnt %d\n", |
cadbd4a5 | 1189 | __func__, phba->cfg_sg_seg_cnt, |
dea3101e | 1190 | lpfc_cmd->seg_cnt); |
96f7077f | 1191 | lpfc_cmd->seg_cnt = 0; |
a0b4f78f | 1192 | scsi_dma_unmap(scsi_cmnd); |
dea3101e | 1193 | return 1; |
1194 | } | |
1195 | ||
1196 | /* | |
1197 | * The driver established a maximum scatter-gather segment count | |
1198 | * during probe that limits the number of sg elements in any | |
1199 | * single scsi command. Just run through the seg_cnt and format | |
1200 | * the bde's. | |
34b02dcd JS |
1201 | * When using SLI-3 the driver will try to fit all the BDEs into |
1202 | * the IOCB. If it can't then the BDEs get added to a BPL as it | |
1203 | * does for SLI-2 mode. | |
dea3101e | 1204 | */ |
34b02dcd | 1205 | scsi_for_each_sg(scsi_cmnd, sgel, nseg, num_bde) { |
dea3101e | 1206 | physaddr = sg_dma_address(sgel); |
34b02dcd | 1207 | if (phba->sli_rev == 3 && |
e2a0a9d6 | 1208 | !(phba->sli3_options & LPFC_SLI3_BG_ENABLED) && |
0f65ff68 | 1209 | !(iocbq->iocb_flag & DSS_SECURITY_OP) && |
34b02dcd JS |
1210 | nseg <= LPFC_EXT_DATA_BDE_COUNT) { |
1211 | data_bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
1212 | data_bde->tus.f.bdeSize = sg_dma_len(sgel); | |
1213 | data_bde->addrLow = putPaddrLow(physaddr); | |
1214 | data_bde->addrHigh = putPaddrHigh(physaddr); | |
1215 | data_bde++; | |
1216 | } else { | |
1217 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
1218 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
1219 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
1220 | bpl->addrLow = | |
1221 | le32_to_cpu(putPaddrLow(physaddr)); | |
1222 | bpl->addrHigh = | |
1223 | le32_to_cpu(putPaddrHigh(physaddr)); | |
1224 | bpl++; | |
1225 | } | |
dea3101e | 1226 | } |
c59fd9eb | 1227 | } |
dea3101e | 1228 | |
1229 | /* | |
1230 | * Finish initializing those IOCB fields that are dependent on the | |
34b02dcd JS |
1231 | * scsi_cmnd request_buffer. Note that for SLI-2 the bdeSize is |
1232 | * explicitly reinitialized and for SLI-3 the extended bde count is | |
1233 | * explicitly reinitialized since all iocb memory resources are reused. | |
dea3101e | 1234 | */ |
e2a0a9d6 | 1235 | if (phba->sli_rev == 3 && |
0f65ff68 JS |
1236 | !(phba->sli3_options & LPFC_SLI3_BG_ENABLED) && |
1237 | !(iocbq->iocb_flag & DSS_SECURITY_OP)) { | |
34b02dcd JS |
1238 | if (num_bde > LPFC_EXT_DATA_BDE_COUNT) { |
1239 | /* | |
1240 | * The extended IOCB format can only fit 3 BDE or a BPL. | |
1241 | * This I/O has more than 3 BDE so the 1st data bde will | |
1242 | * be a BPL that is filled in here. | |
1243 | */ | |
1244 | physaddr = lpfc_cmd->dma_handle; | |
1245 | data_bde->tus.f.bdeFlags = BUFF_TYPE_BLP_64; | |
1246 | data_bde->tus.f.bdeSize = (num_bde * | |
1247 | sizeof(struct ulp_bde64)); | |
1248 | physaddr += (sizeof(struct fcp_cmnd) + | |
1249 | sizeof(struct fcp_rsp) + | |
1250 | (2 * sizeof(struct ulp_bde64))); | |
1251 | data_bde->addrHigh = putPaddrHigh(physaddr); | |
1252 | data_bde->addrLow = putPaddrLow(physaddr); | |
25985edc | 1253 | /* ebde count includes the response bde and data bpl */ |
34b02dcd JS |
1254 | iocb_cmd->unsli3.fcp_ext.ebde_count = 2; |
1255 | } else { | |
25985edc | 1256 | /* ebde count includes the response bde and data bdes */ |
34b02dcd JS |
1257 | iocb_cmd->unsli3.fcp_ext.ebde_count = (num_bde + 1); |
1258 | } | |
1259 | } else { | |
1260 | iocb_cmd->un.fcpi64.bdl.bdeSize = | |
1261 | ((num_bde + 2) * sizeof(struct ulp_bde64)); | |
0f65ff68 | 1262 | iocb_cmd->unsli3.fcp_ext.ebde_count = (num_bde + 1); |
34b02dcd | 1263 | } |
09372820 | 1264 | fcp_cmnd->fcpDl = cpu_to_be32(scsi_bufflen(scsi_cmnd)); |
e2a0a9d6 JS |
1265 | |
1266 | /* | |
1267 | * Due to difference in data length between DIF/non-DIF paths, | |
1268 | * we need to set word 4 of IOCB here | |
1269 | */ | |
a257bf90 | 1270 | iocb_cmd->un.fcpi.fcpi_parm = scsi_bufflen(scsi_cmnd); |
e2a0a9d6 JS |
1271 | return 0; |
1272 | } | |
1273 | ||
f9bb2da1 | 1274 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 1275 | |
4b160ae8 | 1276 | /* Return BG_ERR_INIT if error injection is detected by Initiator */ |
9a6b09c0 | 1277 | #define BG_ERR_INIT 0x1 |
4b160ae8 | 1278 | /* Return BG_ERR_TGT if error injection is detected by Target */ |
9a6b09c0 | 1279 | #define BG_ERR_TGT 0x2 |
4b160ae8 | 1280 | /* Return BG_ERR_SWAP if swapping CSUM<-->CRC is required for error injection */ |
9a6b09c0 | 1281 | #define BG_ERR_SWAP 0x10 |
4b160ae8 MG |
1282 | /** |
1283 | * Return BG_ERR_CHECK if disabling Guard/Ref/App checking is required for | |
1284 | * error injection | |
1285 | **/ | |
9a6b09c0 | 1286 | #define BG_ERR_CHECK 0x20 |
acd6859b JS |
1287 | |
1288 | /** | |
1289 | * lpfc_bg_err_inject - Determine if we should inject an error | |
1290 | * @phba: The Hba for which this call is being executed. | |
f9bb2da1 JS |
1291 | * @sc: The SCSI command to examine |
1292 | * @reftag: (out) BlockGuard reference tag for transmitted data | |
1293 | * @apptag: (out) BlockGuard application tag for transmitted data | |
1294 | * @new_guard (in) Value to replace CRC with if needed | |
1295 | * | |
9a6b09c0 | 1296 | * Returns BG_ERR_* bit mask or 0 if request ignored |
acd6859b | 1297 | **/ |
f9bb2da1 JS |
1298 | static int |
1299 | lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
1300 | uint32_t *reftag, uint16_t *apptag, uint32_t new_guard) | |
1301 | { | |
1302 | struct scatterlist *sgpe; /* s/g prot entry */ | |
9a6b09c0 | 1303 | struct lpfc_scsi_buf *lpfc_cmd = NULL; |
acd6859b | 1304 | struct scsi_dif_tuple *src = NULL; |
4ac9b226 JS |
1305 | struct lpfc_nodelist *ndlp; |
1306 | struct lpfc_rport_data *rdata; | |
f9bb2da1 JS |
1307 | uint32_t op = scsi_get_prot_op(sc); |
1308 | uint32_t blksize; | |
1309 | uint32_t numblks; | |
1310 | sector_t lba; | |
1311 | int rc = 0; | |
acd6859b | 1312 | int blockoff = 0; |
f9bb2da1 JS |
1313 | |
1314 | if (op == SCSI_PROT_NORMAL) | |
1315 | return 0; | |
1316 | ||
acd6859b | 1317 | sgpe = scsi_prot_sglist(sc); |
f9bb2da1 | 1318 | lba = scsi_get_lba(sc); |
4ac9b226 JS |
1319 | |
1320 | /* First check if we need to match the LBA */ | |
f9bb2da1 JS |
1321 | if (phba->lpfc_injerr_lba != LPFC_INJERR_LBA_OFF) { |
1322 | blksize = lpfc_cmd_blksize(sc); | |
1323 | numblks = (scsi_bufflen(sc) + blksize - 1) / blksize; | |
1324 | ||
1325 | /* Make sure we have the right LBA if one is specified */ | |
1326 | if ((phba->lpfc_injerr_lba < lba) || | |
1327 | (phba->lpfc_injerr_lba >= (lba + numblks))) | |
1328 | return 0; | |
acd6859b JS |
1329 | if (sgpe) { |
1330 | blockoff = phba->lpfc_injerr_lba - lba; | |
1331 | numblks = sg_dma_len(sgpe) / | |
1332 | sizeof(struct scsi_dif_tuple); | |
1333 | if (numblks < blockoff) | |
1334 | blockoff = numblks; | |
acd6859b | 1335 | } |
f9bb2da1 JS |
1336 | } |
1337 | ||
4ac9b226 | 1338 | /* Next check if we need to match the remote NPortID or WWPN */ |
1ba981fd | 1339 | rdata = lpfc_rport_data_from_scsi_device(sc->device); |
4ac9b226 JS |
1340 | if (rdata && rdata->pnode) { |
1341 | ndlp = rdata->pnode; | |
1342 | ||
1343 | /* Make sure we have the right NPortID if one is specified */ | |
1344 | if (phba->lpfc_injerr_nportid && | |
1345 | (phba->lpfc_injerr_nportid != ndlp->nlp_DID)) | |
1346 | return 0; | |
1347 | ||
1348 | /* | |
1349 | * Make sure we have the right WWPN if one is specified. | |
1350 | * wwn[0] should be a non-zero NAA in a good WWPN. | |
1351 | */ | |
1352 | if (phba->lpfc_injerr_wwpn.u.wwn[0] && | |
1353 | (memcmp(&ndlp->nlp_portname, &phba->lpfc_injerr_wwpn, | |
1354 | sizeof(struct lpfc_name)) != 0)) | |
1355 | return 0; | |
1356 | } | |
1357 | ||
1358 | /* Setup a ptr to the protection data if the SCSI host provides it */ | |
1359 | if (sgpe) { | |
1360 | src = (struct scsi_dif_tuple *)sg_virt(sgpe); | |
1361 | src += blockoff; | |
1362 | lpfc_cmd = (struct lpfc_scsi_buf *)sc->host_scribble; | |
1363 | } | |
1364 | ||
f9bb2da1 JS |
1365 | /* Should we change the Reference Tag */ |
1366 | if (reftag) { | |
acd6859b JS |
1367 | if (phba->lpfc_injerr_wref_cnt) { |
1368 | switch (op) { | |
1369 | case SCSI_PROT_WRITE_PASS: | |
9a6b09c0 JS |
1370 | if (src) { |
1371 | /* | |
1372 | * For WRITE_PASS, force the error | |
1373 | * to be sent on the wire. It should | |
1374 | * be detected by the Target. | |
1375 | * If blockoff != 0 error will be | |
1376 | * inserted in middle of the IO. | |
1377 | */ | |
acd6859b JS |
1378 | |
1379 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
1380 | "9076 BLKGRD: Injecting reftag error: " | |
1381 | "write lba x%lx + x%x oldrefTag x%x\n", | |
1382 | (unsigned long)lba, blockoff, | |
9a6b09c0 | 1383 | be32_to_cpu(src->ref_tag)); |
f9bb2da1 | 1384 | |
acd6859b | 1385 | /* |
9a6b09c0 JS |
1386 | * Save the old ref_tag so we can |
1387 | * restore it on completion. | |
acd6859b | 1388 | */ |
9a6b09c0 JS |
1389 | if (lpfc_cmd) { |
1390 | lpfc_cmd->prot_data_type = | |
1391 | LPFC_INJERR_REFTAG; | |
1392 | lpfc_cmd->prot_data_segment = | |
1393 | src; | |
1394 | lpfc_cmd->prot_data = | |
1395 | src->ref_tag; | |
1396 | } | |
1397 | src->ref_tag = cpu_to_be32(0xDEADBEEF); | |
acd6859b | 1398 | phba->lpfc_injerr_wref_cnt--; |
4ac9b226 JS |
1399 | if (phba->lpfc_injerr_wref_cnt == 0) { |
1400 | phba->lpfc_injerr_nportid = 0; | |
1401 | phba->lpfc_injerr_lba = | |
1402 | LPFC_INJERR_LBA_OFF; | |
1403 | memset(&phba->lpfc_injerr_wwpn, | |
1404 | 0, sizeof(struct lpfc_name)); | |
1405 | } | |
9a6b09c0 JS |
1406 | rc = BG_ERR_TGT | BG_ERR_CHECK; |
1407 | ||
acd6859b JS |
1408 | break; |
1409 | } | |
1410 | /* Drop thru */ | |
9a6b09c0 | 1411 | case SCSI_PROT_WRITE_INSERT: |
acd6859b | 1412 | /* |
9a6b09c0 JS |
1413 | * For WRITE_INSERT, force the error |
1414 | * to be sent on the wire. It should be | |
1415 | * detected by the Target. | |
acd6859b | 1416 | */ |
9a6b09c0 | 1417 | /* DEADBEEF will be the reftag on the wire */ |
acd6859b JS |
1418 | *reftag = 0xDEADBEEF; |
1419 | phba->lpfc_injerr_wref_cnt--; | |
4ac9b226 JS |
1420 | if (phba->lpfc_injerr_wref_cnt == 0) { |
1421 | phba->lpfc_injerr_nportid = 0; | |
1422 | phba->lpfc_injerr_lba = | |
1423 | LPFC_INJERR_LBA_OFF; | |
1424 | memset(&phba->lpfc_injerr_wwpn, | |
1425 | 0, sizeof(struct lpfc_name)); | |
1426 | } | |
9a6b09c0 | 1427 | rc = BG_ERR_TGT | BG_ERR_CHECK; |
acd6859b JS |
1428 | |
1429 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
9a6b09c0 | 1430 | "9078 BLKGRD: Injecting reftag error: " |
acd6859b JS |
1431 | "write lba x%lx\n", (unsigned long)lba); |
1432 | break; | |
9a6b09c0 | 1433 | case SCSI_PROT_WRITE_STRIP: |
acd6859b | 1434 | /* |
9a6b09c0 JS |
1435 | * For WRITE_STRIP and WRITE_PASS, |
1436 | * force the error on data | |
1437 | * being copied from SLI-Host to SLI-Port. | |
acd6859b | 1438 | */ |
f9bb2da1 JS |
1439 | *reftag = 0xDEADBEEF; |
1440 | phba->lpfc_injerr_wref_cnt--; | |
4ac9b226 JS |
1441 | if (phba->lpfc_injerr_wref_cnt == 0) { |
1442 | phba->lpfc_injerr_nportid = 0; | |
1443 | phba->lpfc_injerr_lba = | |
1444 | LPFC_INJERR_LBA_OFF; | |
1445 | memset(&phba->lpfc_injerr_wwpn, | |
1446 | 0, sizeof(struct lpfc_name)); | |
1447 | } | |
9a6b09c0 | 1448 | rc = BG_ERR_INIT; |
f9bb2da1 JS |
1449 | |
1450 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
9a6b09c0 | 1451 | "9077 BLKGRD: Injecting reftag error: " |
f9bb2da1 | 1452 | "write lba x%lx\n", (unsigned long)lba); |
acd6859b | 1453 | break; |
f9bb2da1 | 1454 | } |
acd6859b JS |
1455 | } |
1456 | if (phba->lpfc_injerr_rref_cnt) { | |
1457 | switch (op) { | |
1458 | case SCSI_PROT_READ_INSERT: | |
acd6859b JS |
1459 | case SCSI_PROT_READ_STRIP: |
1460 | case SCSI_PROT_READ_PASS: | |
1461 | /* | |
1462 | * For READ_STRIP and READ_PASS, force the | |
1463 | * error on data being read off the wire. It | |
1464 | * should force an IO error to the driver. | |
1465 | */ | |
f9bb2da1 JS |
1466 | *reftag = 0xDEADBEEF; |
1467 | phba->lpfc_injerr_rref_cnt--; | |
4ac9b226 JS |
1468 | if (phba->lpfc_injerr_rref_cnt == 0) { |
1469 | phba->lpfc_injerr_nportid = 0; | |
1470 | phba->lpfc_injerr_lba = | |
1471 | LPFC_INJERR_LBA_OFF; | |
1472 | memset(&phba->lpfc_injerr_wwpn, | |
1473 | 0, sizeof(struct lpfc_name)); | |
1474 | } | |
acd6859b | 1475 | rc = BG_ERR_INIT; |
f9bb2da1 JS |
1476 | |
1477 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
acd6859b | 1478 | "9079 BLKGRD: Injecting reftag error: " |
f9bb2da1 | 1479 | "read lba x%lx\n", (unsigned long)lba); |
acd6859b | 1480 | break; |
f9bb2da1 JS |
1481 | } |
1482 | } | |
1483 | } | |
1484 | ||
1485 | /* Should we change the Application Tag */ | |
1486 | if (apptag) { | |
acd6859b JS |
1487 | if (phba->lpfc_injerr_wapp_cnt) { |
1488 | switch (op) { | |
1489 | case SCSI_PROT_WRITE_PASS: | |
4ac9b226 | 1490 | if (src) { |
9a6b09c0 JS |
1491 | /* |
1492 | * For WRITE_PASS, force the error | |
1493 | * to be sent on the wire. It should | |
1494 | * be detected by the Target. | |
1495 | * If blockoff != 0 error will be | |
1496 | * inserted in middle of the IO. | |
1497 | */ | |
1498 | ||
acd6859b JS |
1499 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
1500 | "9080 BLKGRD: Injecting apptag error: " | |
1501 | "write lba x%lx + x%x oldappTag x%x\n", | |
1502 | (unsigned long)lba, blockoff, | |
9a6b09c0 | 1503 | be16_to_cpu(src->app_tag)); |
acd6859b JS |
1504 | |
1505 | /* | |
9a6b09c0 JS |
1506 | * Save the old app_tag so we can |
1507 | * restore it on completion. | |
acd6859b | 1508 | */ |
9a6b09c0 JS |
1509 | if (lpfc_cmd) { |
1510 | lpfc_cmd->prot_data_type = | |
1511 | LPFC_INJERR_APPTAG; | |
1512 | lpfc_cmd->prot_data_segment = | |
1513 | src; | |
1514 | lpfc_cmd->prot_data = | |
1515 | src->app_tag; | |
1516 | } | |
1517 | src->app_tag = cpu_to_be16(0xDEAD); | |
acd6859b | 1518 | phba->lpfc_injerr_wapp_cnt--; |
4ac9b226 JS |
1519 | if (phba->lpfc_injerr_wapp_cnt == 0) { |
1520 | phba->lpfc_injerr_nportid = 0; | |
1521 | phba->lpfc_injerr_lba = | |
1522 | LPFC_INJERR_LBA_OFF; | |
1523 | memset(&phba->lpfc_injerr_wwpn, | |
1524 | 0, sizeof(struct lpfc_name)); | |
1525 | } | |
9a6b09c0 | 1526 | rc = BG_ERR_TGT | BG_ERR_CHECK; |
acd6859b JS |
1527 | break; |
1528 | } | |
1529 | /* Drop thru */ | |
9a6b09c0 | 1530 | case SCSI_PROT_WRITE_INSERT: |
acd6859b | 1531 | /* |
9a6b09c0 JS |
1532 | * For WRITE_INSERT, force the |
1533 | * error to be sent on the wire. It should be | |
1534 | * detected by the Target. | |
acd6859b | 1535 | */ |
9a6b09c0 | 1536 | /* DEAD will be the apptag on the wire */ |
acd6859b JS |
1537 | *apptag = 0xDEAD; |
1538 | phba->lpfc_injerr_wapp_cnt--; | |
4ac9b226 JS |
1539 | if (phba->lpfc_injerr_wapp_cnt == 0) { |
1540 | phba->lpfc_injerr_nportid = 0; | |
1541 | phba->lpfc_injerr_lba = | |
1542 | LPFC_INJERR_LBA_OFF; | |
1543 | memset(&phba->lpfc_injerr_wwpn, | |
1544 | 0, sizeof(struct lpfc_name)); | |
1545 | } | |
9a6b09c0 | 1546 | rc = BG_ERR_TGT | BG_ERR_CHECK; |
f9bb2da1 | 1547 | |
acd6859b | 1548 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
9a6b09c0 | 1549 | "0813 BLKGRD: Injecting apptag error: " |
acd6859b JS |
1550 | "write lba x%lx\n", (unsigned long)lba); |
1551 | break; | |
9a6b09c0 | 1552 | case SCSI_PROT_WRITE_STRIP: |
acd6859b | 1553 | /* |
9a6b09c0 JS |
1554 | * For WRITE_STRIP and WRITE_PASS, |
1555 | * force the error on data | |
1556 | * being copied from SLI-Host to SLI-Port. | |
acd6859b | 1557 | */ |
f9bb2da1 JS |
1558 | *apptag = 0xDEAD; |
1559 | phba->lpfc_injerr_wapp_cnt--; | |
4ac9b226 JS |
1560 | if (phba->lpfc_injerr_wapp_cnt == 0) { |
1561 | phba->lpfc_injerr_nportid = 0; | |
1562 | phba->lpfc_injerr_lba = | |
1563 | LPFC_INJERR_LBA_OFF; | |
1564 | memset(&phba->lpfc_injerr_wwpn, | |
1565 | 0, sizeof(struct lpfc_name)); | |
1566 | } | |
9a6b09c0 | 1567 | rc = BG_ERR_INIT; |
f9bb2da1 JS |
1568 | |
1569 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
9a6b09c0 | 1570 | "0812 BLKGRD: Injecting apptag error: " |
f9bb2da1 | 1571 | "write lba x%lx\n", (unsigned long)lba); |
acd6859b | 1572 | break; |
f9bb2da1 | 1573 | } |
acd6859b JS |
1574 | } |
1575 | if (phba->lpfc_injerr_rapp_cnt) { | |
1576 | switch (op) { | |
1577 | case SCSI_PROT_READ_INSERT: | |
acd6859b JS |
1578 | case SCSI_PROT_READ_STRIP: |
1579 | case SCSI_PROT_READ_PASS: | |
1580 | /* | |
1581 | * For READ_STRIP and READ_PASS, force the | |
1582 | * error on data being read off the wire. It | |
1583 | * should force an IO error to the driver. | |
1584 | */ | |
f9bb2da1 JS |
1585 | *apptag = 0xDEAD; |
1586 | phba->lpfc_injerr_rapp_cnt--; | |
4ac9b226 JS |
1587 | if (phba->lpfc_injerr_rapp_cnt == 0) { |
1588 | phba->lpfc_injerr_nportid = 0; | |
1589 | phba->lpfc_injerr_lba = | |
1590 | LPFC_INJERR_LBA_OFF; | |
1591 | memset(&phba->lpfc_injerr_wwpn, | |
1592 | 0, sizeof(struct lpfc_name)); | |
1593 | } | |
acd6859b | 1594 | rc = BG_ERR_INIT; |
f9bb2da1 JS |
1595 | |
1596 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
acd6859b | 1597 | "0814 BLKGRD: Injecting apptag error: " |
f9bb2da1 | 1598 | "read lba x%lx\n", (unsigned long)lba); |
acd6859b | 1599 | break; |
f9bb2da1 JS |
1600 | } |
1601 | } | |
1602 | } | |
1603 | ||
acd6859b | 1604 | |
f9bb2da1 | 1605 | /* Should we change the Guard Tag */ |
acd6859b JS |
1606 | if (new_guard) { |
1607 | if (phba->lpfc_injerr_wgrd_cnt) { | |
1608 | switch (op) { | |
1609 | case SCSI_PROT_WRITE_PASS: | |
9a6b09c0 | 1610 | rc = BG_ERR_CHECK; |
acd6859b | 1611 | /* Drop thru */ |
9a6b09c0 JS |
1612 | |
1613 | case SCSI_PROT_WRITE_INSERT: | |
acd6859b | 1614 | /* |
9a6b09c0 JS |
1615 | * For WRITE_INSERT, force the |
1616 | * error to be sent on the wire. It should be | |
1617 | * detected by the Target. | |
acd6859b JS |
1618 | */ |
1619 | phba->lpfc_injerr_wgrd_cnt--; | |
4ac9b226 JS |
1620 | if (phba->lpfc_injerr_wgrd_cnt == 0) { |
1621 | phba->lpfc_injerr_nportid = 0; | |
1622 | phba->lpfc_injerr_lba = | |
1623 | LPFC_INJERR_LBA_OFF; | |
1624 | memset(&phba->lpfc_injerr_wwpn, | |
1625 | 0, sizeof(struct lpfc_name)); | |
1626 | } | |
f9bb2da1 | 1627 | |
9a6b09c0 | 1628 | rc |= BG_ERR_TGT | BG_ERR_SWAP; |
acd6859b | 1629 | /* Signals the caller to swap CRC->CSUM */ |
f9bb2da1 | 1630 | |
acd6859b | 1631 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
9a6b09c0 | 1632 | "0817 BLKGRD: Injecting guard error: " |
acd6859b JS |
1633 | "write lba x%lx\n", (unsigned long)lba); |
1634 | break; | |
9a6b09c0 | 1635 | case SCSI_PROT_WRITE_STRIP: |
acd6859b | 1636 | /* |
9a6b09c0 JS |
1637 | * For WRITE_STRIP and WRITE_PASS, |
1638 | * force the error on data | |
1639 | * being copied from SLI-Host to SLI-Port. | |
acd6859b JS |
1640 | */ |
1641 | phba->lpfc_injerr_wgrd_cnt--; | |
4ac9b226 JS |
1642 | if (phba->lpfc_injerr_wgrd_cnt == 0) { |
1643 | phba->lpfc_injerr_nportid = 0; | |
1644 | phba->lpfc_injerr_lba = | |
1645 | LPFC_INJERR_LBA_OFF; | |
1646 | memset(&phba->lpfc_injerr_wwpn, | |
1647 | 0, sizeof(struct lpfc_name)); | |
1648 | } | |
f9bb2da1 | 1649 | |
9a6b09c0 | 1650 | rc = BG_ERR_INIT | BG_ERR_SWAP; |
acd6859b JS |
1651 | /* Signals the caller to swap CRC->CSUM */ |
1652 | ||
1653 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
9a6b09c0 | 1654 | "0816 BLKGRD: Injecting guard error: " |
acd6859b JS |
1655 | "write lba x%lx\n", (unsigned long)lba); |
1656 | break; | |
1657 | } | |
1658 | } | |
1659 | if (phba->lpfc_injerr_rgrd_cnt) { | |
1660 | switch (op) { | |
1661 | case SCSI_PROT_READ_INSERT: | |
acd6859b JS |
1662 | case SCSI_PROT_READ_STRIP: |
1663 | case SCSI_PROT_READ_PASS: | |
1664 | /* | |
1665 | * For READ_STRIP and READ_PASS, force the | |
1666 | * error on data being read off the wire. It | |
1667 | * should force an IO error to the driver. | |
1668 | */ | |
acd6859b | 1669 | phba->lpfc_injerr_rgrd_cnt--; |
4ac9b226 JS |
1670 | if (phba->lpfc_injerr_rgrd_cnt == 0) { |
1671 | phba->lpfc_injerr_nportid = 0; | |
1672 | phba->lpfc_injerr_lba = | |
1673 | LPFC_INJERR_LBA_OFF; | |
1674 | memset(&phba->lpfc_injerr_wwpn, | |
1675 | 0, sizeof(struct lpfc_name)); | |
1676 | } | |
acd6859b | 1677 | |
9a6b09c0 | 1678 | rc = BG_ERR_INIT | BG_ERR_SWAP; |
acd6859b JS |
1679 | /* Signals the caller to swap CRC->CSUM */ |
1680 | ||
1681 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
1682 | "0818 BLKGRD: Injecting guard error: " | |
1683 | "read lba x%lx\n", (unsigned long)lba); | |
1684 | } | |
f9bb2da1 JS |
1685 | } |
1686 | } | |
acd6859b | 1687 | |
f9bb2da1 JS |
1688 | return rc; |
1689 | } | |
1690 | #endif | |
1691 | ||
acd6859b JS |
1692 | /** |
1693 | * lpfc_sc_to_bg_opcodes - Determine the BlockGuard opcodes to be used with | |
1694 | * the specified SCSI command. | |
1695 | * @phba: The Hba for which this call is being executed. | |
6c8eea54 JS |
1696 | * @sc: The SCSI command to examine |
1697 | * @txopt: (out) BlockGuard operation for transmitted data | |
1698 | * @rxopt: (out) BlockGuard operation for received data | |
1699 | * | |
1700 | * Returns: zero on success; non-zero if tx and/or rx op cannot be determined | |
1701 | * | |
acd6859b | 1702 | **/ |
e2a0a9d6 | 1703 | static int |
6c8eea54 JS |
1704 | lpfc_sc_to_bg_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc, |
1705 | uint8_t *txop, uint8_t *rxop) | |
e2a0a9d6 | 1706 | { |
6c8eea54 | 1707 | uint8_t ret = 0; |
e2a0a9d6 | 1708 | |
9c6aa9d7 | 1709 | if (lpfc_cmd_guard_csum(sc)) { |
e2a0a9d6 JS |
1710 | switch (scsi_get_prot_op(sc)) { |
1711 | case SCSI_PROT_READ_INSERT: | |
1712 | case SCSI_PROT_WRITE_STRIP: | |
6c8eea54 | 1713 | *rxop = BG_OP_IN_NODIF_OUT_CSUM; |
4ac9b226 | 1714 | *txop = BG_OP_IN_CSUM_OUT_NODIF; |
e2a0a9d6 JS |
1715 | break; |
1716 | ||
1717 | case SCSI_PROT_READ_STRIP: | |
1718 | case SCSI_PROT_WRITE_INSERT: | |
6c8eea54 | 1719 | *rxop = BG_OP_IN_CRC_OUT_NODIF; |
4ac9b226 | 1720 | *txop = BG_OP_IN_NODIF_OUT_CRC; |
e2a0a9d6 JS |
1721 | break; |
1722 | ||
c6af4042 MP |
1723 | case SCSI_PROT_READ_PASS: |
1724 | case SCSI_PROT_WRITE_PASS: | |
6c8eea54 | 1725 | *rxop = BG_OP_IN_CRC_OUT_CSUM; |
4ac9b226 | 1726 | *txop = BG_OP_IN_CSUM_OUT_CRC; |
e2a0a9d6 JS |
1727 | break; |
1728 | ||
e2a0a9d6 JS |
1729 | case SCSI_PROT_NORMAL: |
1730 | default: | |
6a9c52cf | 1731 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
7c56b9fd JS |
1732 | "9063 BLKGRD: Bad op/guard:%d/IP combination\n", |
1733 | scsi_get_prot_op(sc)); | |
6c8eea54 | 1734 | ret = 1; |
e2a0a9d6 JS |
1735 | break; |
1736 | ||
1737 | } | |
7c56b9fd | 1738 | } else { |
e2a0a9d6 JS |
1739 | switch (scsi_get_prot_op(sc)) { |
1740 | case SCSI_PROT_READ_STRIP: | |
1741 | case SCSI_PROT_WRITE_INSERT: | |
6c8eea54 | 1742 | *rxop = BG_OP_IN_CRC_OUT_NODIF; |
4ac9b226 | 1743 | *txop = BG_OP_IN_NODIF_OUT_CRC; |
e2a0a9d6 JS |
1744 | break; |
1745 | ||
1746 | case SCSI_PROT_READ_PASS: | |
1747 | case SCSI_PROT_WRITE_PASS: | |
6c8eea54 | 1748 | *rxop = BG_OP_IN_CRC_OUT_CRC; |
4ac9b226 | 1749 | *txop = BG_OP_IN_CRC_OUT_CRC; |
e2a0a9d6 JS |
1750 | break; |
1751 | ||
e2a0a9d6 JS |
1752 | case SCSI_PROT_READ_INSERT: |
1753 | case SCSI_PROT_WRITE_STRIP: | |
7c56b9fd | 1754 | *rxop = BG_OP_IN_NODIF_OUT_CRC; |
4ac9b226 | 1755 | *txop = BG_OP_IN_CRC_OUT_NODIF; |
7c56b9fd JS |
1756 | break; |
1757 | ||
e2a0a9d6 JS |
1758 | case SCSI_PROT_NORMAL: |
1759 | default: | |
6a9c52cf | 1760 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
7c56b9fd JS |
1761 | "9075 BLKGRD: Bad op/guard:%d/CRC combination\n", |
1762 | scsi_get_prot_op(sc)); | |
6c8eea54 | 1763 | ret = 1; |
e2a0a9d6 JS |
1764 | break; |
1765 | } | |
e2a0a9d6 JS |
1766 | } |
1767 | ||
6c8eea54 | 1768 | return ret; |
e2a0a9d6 JS |
1769 | } |
1770 | ||
acd6859b JS |
1771 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
1772 | /** | |
1773 | * lpfc_bg_err_opcodes - reDetermine the BlockGuard opcodes to be used with | |
1774 | * the specified SCSI command in order to force a guard tag error. | |
1775 | * @phba: The Hba for which this call is being executed. | |
1776 | * @sc: The SCSI command to examine | |
1777 | * @txopt: (out) BlockGuard operation for transmitted data | |
1778 | * @rxopt: (out) BlockGuard operation for received data | |
1779 | * | |
1780 | * Returns: zero on success; non-zero if tx and/or rx op cannot be determined | |
1781 | * | |
1782 | **/ | |
1783 | static int | |
1784 | lpfc_bg_err_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
1785 | uint8_t *txop, uint8_t *rxop) | |
1786 | { | |
acd6859b JS |
1787 | uint8_t ret = 0; |
1788 | ||
9c6aa9d7 | 1789 | if (lpfc_cmd_guard_csum(sc)) { |
acd6859b JS |
1790 | switch (scsi_get_prot_op(sc)) { |
1791 | case SCSI_PROT_READ_INSERT: | |
1792 | case SCSI_PROT_WRITE_STRIP: | |
acd6859b | 1793 | *rxop = BG_OP_IN_NODIF_OUT_CRC; |
4ac9b226 | 1794 | *txop = BG_OP_IN_CRC_OUT_NODIF; |
acd6859b JS |
1795 | break; |
1796 | ||
1797 | case SCSI_PROT_READ_STRIP: | |
1798 | case SCSI_PROT_WRITE_INSERT: | |
acd6859b | 1799 | *rxop = BG_OP_IN_CSUM_OUT_NODIF; |
4ac9b226 | 1800 | *txop = BG_OP_IN_NODIF_OUT_CSUM; |
acd6859b JS |
1801 | break; |
1802 | ||
1803 | case SCSI_PROT_READ_PASS: | |
1804 | case SCSI_PROT_WRITE_PASS: | |
4ac9b226 | 1805 | *rxop = BG_OP_IN_CSUM_OUT_CRC; |
9a6b09c0 | 1806 | *txop = BG_OP_IN_CRC_OUT_CSUM; |
acd6859b JS |
1807 | break; |
1808 | ||
1809 | case SCSI_PROT_NORMAL: | |
1810 | default: | |
1811 | break; | |
1812 | ||
1813 | } | |
1814 | } else { | |
1815 | switch (scsi_get_prot_op(sc)) { | |
1816 | case SCSI_PROT_READ_STRIP: | |
1817 | case SCSI_PROT_WRITE_INSERT: | |
acd6859b | 1818 | *rxop = BG_OP_IN_CSUM_OUT_NODIF; |
4ac9b226 | 1819 | *txop = BG_OP_IN_NODIF_OUT_CSUM; |
acd6859b JS |
1820 | break; |
1821 | ||
1822 | case SCSI_PROT_READ_PASS: | |
1823 | case SCSI_PROT_WRITE_PASS: | |
4ac9b226 | 1824 | *rxop = BG_OP_IN_CSUM_OUT_CSUM; |
9a6b09c0 | 1825 | *txop = BG_OP_IN_CSUM_OUT_CSUM; |
acd6859b JS |
1826 | break; |
1827 | ||
1828 | case SCSI_PROT_READ_INSERT: | |
1829 | case SCSI_PROT_WRITE_STRIP: | |
acd6859b | 1830 | *rxop = BG_OP_IN_NODIF_OUT_CSUM; |
4ac9b226 | 1831 | *txop = BG_OP_IN_CSUM_OUT_NODIF; |
acd6859b JS |
1832 | break; |
1833 | ||
1834 | case SCSI_PROT_NORMAL: | |
1835 | default: | |
1836 | break; | |
1837 | } | |
1838 | } | |
1839 | ||
1840 | return ret; | |
1841 | } | |
1842 | #endif | |
1843 | ||
1844 | /** | |
1845 | * lpfc_bg_setup_bpl - Setup BlockGuard BPL with no protection data | |
1846 | * @phba: The Hba for which this call is being executed. | |
1847 | * @sc: pointer to scsi command we're working on | |
1848 | * @bpl: pointer to buffer list for protection groups | |
1849 | * @datacnt: number of segments of data that have been dma mapped | |
1850 | * | |
1851 | * This function sets up BPL buffer list for protection groups of | |
e2a0a9d6 JS |
1852 | * type LPFC_PG_TYPE_NO_DIF |
1853 | * | |
1854 | * This is usually used when the HBA is instructed to generate | |
1855 | * DIFs and insert them into data stream (or strip DIF from | |
1856 | * incoming data stream) | |
1857 | * | |
1858 | * The buffer list consists of just one protection group described | |
1859 | * below: | |
1860 | * +-------------------------+ | |
6c8eea54 JS |
1861 | * start of prot group --> | PDE_5 | |
1862 | * +-------------------------+ | |
1863 | * | PDE_6 | | |
e2a0a9d6 JS |
1864 | * +-------------------------+ |
1865 | * | Data BDE | | |
1866 | * +-------------------------+ | |
1867 | * |more Data BDE's ... (opt)| | |
1868 | * +-------------------------+ | |
1869 | * | |
e2a0a9d6 JS |
1870 | * |
1871 | * Note: Data s/g buffers have been dma mapped | |
acd6859b JS |
1872 | * |
1873 | * Returns the number of BDEs added to the BPL. | |
1874 | **/ | |
e2a0a9d6 JS |
1875 | static int |
1876 | lpfc_bg_setup_bpl(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
1877 | struct ulp_bde64 *bpl, int datasegcnt) | |
1878 | { | |
1879 | struct scatterlist *sgde = NULL; /* s/g data entry */ | |
6c8eea54 JS |
1880 | struct lpfc_pde5 *pde5 = NULL; |
1881 | struct lpfc_pde6 *pde6 = NULL; | |
e2a0a9d6 | 1882 | dma_addr_t physaddr; |
6c8eea54 | 1883 | int i = 0, num_bde = 0, status; |
e2a0a9d6 | 1884 | int datadir = sc->sc_data_direction; |
0829a19a | 1885 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 1886 | uint32_t rc; |
0829a19a | 1887 | #endif |
acd6859b | 1888 | uint32_t checking = 1; |
e2a0a9d6 | 1889 | uint32_t reftag; |
6c8eea54 | 1890 | uint8_t txop, rxop; |
e2a0a9d6 | 1891 | |
6c8eea54 JS |
1892 | status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop); |
1893 | if (status) | |
e2a0a9d6 JS |
1894 | goto out; |
1895 | ||
6c8eea54 | 1896 | /* extract some info from the scsi command for pde*/ |
acd6859b | 1897 | reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */ |
e2a0a9d6 | 1898 | |
f9bb2da1 | 1899 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
4ac9b226 | 1900 | rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); |
acd6859b | 1901 | if (rc) { |
9a6b09c0 | 1902 | if (rc & BG_ERR_SWAP) |
acd6859b | 1903 | lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); |
9a6b09c0 | 1904 | if (rc & BG_ERR_CHECK) |
acd6859b JS |
1905 | checking = 0; |
1906 | } | |
f9bb2da1 JS |
1907 | #endif |
1908 | ||
6c8eea54 JS |
1909 | /* setup PDE5 with what we have */ |
1910 | pde5 = (struct lpfc_pde5 *) bpl; | |
1911 | memset(pde5, 0, sizeof(struct lpfc_pde5)); | |
1912 | bf_set(pde5_type, pde5, LPFC_PDE5_DESCRIPTOR); | |
6c8eea54 | 1913 | |
bc73905a | 1914 | /* Endianness conversion if necessary for PDE5 */ |
589a52d6 | 1915 | pde5->word0 = cpu_to_le32(pde5->word0); |
7c56b9fd | 1916 | pde5->reftag = cpu_to_le32(reftag); |
589a52d6 | 1917 | |
6c8eea54 JS |
1918 | /* advance bpl and increment bde count */ |
1919 | num_bde++; | |
1920 | bpl++; | |
1921 | pde6 = (struct lpfc_pde6 *) bpl; | |
1922 | ||
1923 | /* setup PDE6 with the rest of the info */ | |
1924 | memset(pde6, 0, sizeof(struct lpfc_pde6)); | |
1925 | bf_set(pde6_type, pde6, LPFC_PDE6_DESCRIPTOR); | |
1926 | bf_set(pde6_optx, pde6, txop); | |
1927 | bf_set(pde6_oprx, pde6, rxop); | |
a6887e28 JS |
1928 | |
1929 | /* | |
1930 | * We only need to check the data on READs, for WRITEs | |
1931 | * protection data is automatically generated, not checked. | |
1932 | */ | |
6c8eea54 | 1933 | if (datadir == DMA_FROM_DEVICE) { |
9c6aa9d7 | 1934 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_GUARD)) |
a6887e28 JS |
1935 | bf_set(pde6_ce, pde6, checking); |
1936 | else | |
1937 | bf_set(pde6_ce, pde6, 0); | |
1938 | ||
9c6aa9d7 | 1939 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_REF)) |
a6887e28 JS |
1940 | bf_set(pde6_re, pde6, checking); |
1941 | else | |
1942 | bf_set(pde6_re, pde6, 0); | |
6c8eea54 JS |
1943 | } |
1944 | bf_set(pde6_ai, pde6, 1); | |
7c56b9fd JS |
1945 | bf_set(pde6_ae, pde6, 0); |
1946 | bf_set(pde6_apptagval, pde6, 0); | |
e2a0a9d6 | 1947 | |
bc73905a | 1948 | /* Endianness conversion if necessary for PDE6 */ |
589a52d6 JS |
1949 | pde6->word0 = cpu_to_le32(pde6->word0); |
1950 | pde6->word1 = cpu_to_le32(pde6->word1); | |
1951 | pde6->word2 = cpu_to_le32(pde6->word2); | |
1952 | ||
6c8eea54 | 1953 | /* advance bpl and increment bde count */ |
e2a0a9d6 JS |
1954 | num_bde++; |
1955 | bpl++; | |
1956 | ||
1957 | /* assumption: caller has already run dma_map_sg on command data */ | |
1958 | scsi_for_each_sg(sc, sgde, datasegcnt, i) { | |
1959 | physaddr = sg_dma_address(sgde); | |
1960 | bpl->addrLow = le32_to_cpu(putPaddrLow(physaddr)); | |
1961 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(physaddr)); | |
1962 | bpl->tus.f.bdeSize = sg_dma_len(sgde); | |
1963 | if (datadir == DMA_TO_DEVICE) | |
1964 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
1965 | else | |
1966 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
1967 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
1968 | bpl++; | |
1969 | num_bde++; | |
1970 | } | |
1971 | ||
1972 | out: | |
1973 | return num_bde; | |
1974 | } | |
1975 | ||
acd6859b JS |
1976 | /** |
1977 | * lpfc_bg_setup_bpl_prot - Setup BlockGuard BPL with protection data | |
1978 | * @phba: The Hba for which this call is being executed. | |
1979 | * @sc: pointer to scsi command we're working on | |
1980 | * @bpl: pointer to buffer list for protection groups | |
1981 | * @datacnt: number of segments of data that have been dma mapped | |
1982 | * @protcnt: number of segment of protection data that have been dma mapped | |
1983 | * | |
1984 | * This function sets up BPL buffer list for protection groups of | |
1985 | * type LPFC_PG_TYPE_DIF | |
e2a0a9d6 JS |
1986 | * |
1987 | * This is usually used when DIFs are in their own buffers, | |
1988 | * separate from the data. The HBA can then by instructed | |
1989 | * to place the DIFs in the outgoing stream. For read operations, | |
1990 | * The HBA could extract the DIFs and place it in DIF buffers. | |
1991 | * | |
1992 | * The buffer list for this type consists of one or more of the | |
1993 | * protection groups described below: | |
1994 | * +-------------------------+ | |
6c8eea54 | 1995 | * start of first prot group --> | PDE_5 | |
e2a0a9d6 | 1996 | * +-------------------------+ |
6c8eea54 JS |
1997 | * | PDE_6 | |
1998 | * +-------------------------+ | |
1999 | * | PDE_7 (Prot BDE) | | |
e2a0a9d6 JS |
2000 | * +-------------------------+ |
2001 | * | Data BDE | | |
2002 | * +-------------------------+ | |
2003 | * |more Data BDE's ... (opt)| | |
2004 | * +-------------------------+ | |
6c8eea54 | 2005 | * start of new prot group --> | PDE_5 | |
e2a0a9d6 JS |
2006 | * +-------------------------+ |
2007 | * | ... | | |
2008 | * +-------------------------+ | |
2009 | * | |
e2a0a9d6 JS |
2010 | * Note: It is assumed that both data and protection s/g buffers have been |
2011 | * mapped for DMA | |
acd6859b JS |
2012 | * |
2013 | * Returns the number of BDEs added to the BPL. | |
2014 | **/ | |
e2a0a9d6 JS |
2015 | static int |
2016 | lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
2017 | struct ulp_bde64 *bpl, int datacnt, int protcnt) | |
2018 | { | |
2019 | struct scatterlist *sgde = NULL; /* s/g data entry */ | |
2020 | struct scatterlist *sgpe = NULL; /* s/g prot entry */ | |
6c8eea54 JS |
2021 | struct lpfc_pde5 *pde5 = NULL; |
2022 | struct lpfc_pde6 *pde6 = NULL; | |
7f86059a | 2023 | struct lpfc_pde7 *pde7 = NULL; |
e2a0a9d6 JS |
2024 | dma_addr_t dataphysaddr, protphysaddr; |
2025 | unsigned short curr_data = 0, curr_prot = 0; | |
7f86059a JS |
2026 | unsigned int split_offset; |
2027 | unsigned int protgroup_len, protgroup_offset = 0, protgroup_remainder; | |
e2a0a9d6 JS |
2028 | unsigned int protgrp_blks, protgrp_bytes; |
2029 | unsigned int remainder, subtotal; | |
6c8eea54 | 2030 | int status; |
e2a0a9d6 JS |
2031 | int datadir = sc->sc_data_direction; |
2032 | unsigned char pgdone = 0, alldone = 0; | |
2033 | unsigned blksize; | |
0829a19a | 2034 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 2035 | uint32_t rc; |
0829a19a | 2036 | #endif |
acd6859b | 2037 | uint32_t checking = 1; |
e2a0a9d6 | 2038 | uint32_t reftag; |
6c8eea54 | 2039 | uint8_t txop, rxop; |
e2a0a9d6 JS |
2040 | int num_bde = 0; |
2041 | ||
2042 | sgpe = scsi_prot_sglist(sc); | |
2043 | sgde = scsi_sglist(sc); | |
2044 | ||
2045 | if (!sgpe || !sgde) { | |
2046 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, | |
acd6859b JS |
2047 | "9020 Invalid s/g entry: data=0x%p prot=0x%p\n", |
2048 | sgpe, sgde); | |
2049 | return 0; | |
2050 | } | |
2051 | ||
2052 | status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop); | |
2053 | if (status) | |
2054 | goto out; | |
2055 | ||
2056 | /* extract some info from the scsi command */ | |
2057 | blksize = lpfc_cmd_blksize(sc); | |
2058 | reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */ | |
2059 | ||
2060 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS | |
4ac9b226 | 2061 | rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); |
acd6859b | 2062 | if (rc) { |
9a6b09c0 | 2063 | if (rc & BG_ERR_SWAP) |
acd6859b | 2064 | lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); |
9a6b09c0 | 2065 | if (rc & BG_ERR_CHECK) |
acd6859b JS |
2066 | checking = 0; |
2067 | } | |
2068 | #endif | |
2069 | ||
2070 | split_offset = 0; | |
2071 | do { | |
96f7077f JS |
2072 | /* Check to see if we ran out of space */ |
2073 | if (num_bde >= (phba->cfg_total_seg_cnt - 2)) | |
2074 | return num_bde + 3; | |
2075 | ||
acd6859b JS |
2076 | /* setup PDE5 with what we have */ |
2077 | pde5 = (struct lpfc_pde5 *) bpl; | |
2078 | memset(pde5, 0, sizeof(struct lpfc_pde5)); | |
2079 | bf_set(pde5_type, pde5, LPFC_PDE5_DESCRIPTOR); | |
2080 | ||
2081 | /* Endianness conversion if necessary for PDE5 */ | |
2082 | pde5->word0 = cpu_to_le32(pde5->word0); | |
2083 | pde5->reftag = cpu_to_le32(reftag); | |
2084 | ||
2085 | /* advance bpl and increment bde count */ | |
2086 | num_bde++; | |
2087 | bpl++; | |
2088 | pde6 = (struct lpfc_pde6 *) bpl; | |
2089 | ||
2090 | /* setup PDE6 with the rest of the info */ | |
2091 | memset(pde6, 0, sizeof(struct lpfc_pde6)); | |
2092 | bf_set(pde6_type, pde6, LPFC_PDE6_DESCRIPTOR); | |
2093 | bf_set(pde6_optx, pde6, txop); | |
2094 | bf_set(pde6_oprx, pde6, rxop); | |
a6887e28 | 2095 | |
9c6aa9d7 | 2096 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_GUARD)) |
a6887e28 JS |
2097 | bf_set(pde6_ce, pde6, checking); |
2098 | else | |
2099 | bf_set(pde6_ce, pde6, 0); | |
2100 | ||
9c6aa9d7 | 2101 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_REF)) |
a6887e28 JS |
2102 | bf_set(pde6_re, pde6, checking); |
2103 | else | |
2104 | bf_set(pde6_re, pde6, 0); | |
2105 | ||
acd6859b JS |
2106 | bf_set(pde6_ai, pde6, 1); |
2107 | bf_set(pde6_ae, pde6, 0); | |
2108 | bf_set(pde6_apptagval, pde6, 0); | |
2109 | ||
2110 | /* Endianness conversion if necessary for PDE6 */ | |
2111 | pde6->word0 = cpu_to_le32(pde6->word0); | |
2112 | pde6->word1 = cpu_to_le32(pde6->word1); | |
2113 | pde6->word2 = cpu_to_le32(pde6->word2); | |
2114 | ||
2115 | /* advance bpl and increment bde count */ | |
2116 | num_bde++; | |
2117 | bpl++; | |
2118 | ||
2119 | /* setup the first BDE that points to protection buffer */ | |
2120 | protphysaddr = sg_dma_address(sgpe) + protgroup_offset; | |
2121 | protgroup_len = sg_dma_len(sgpe) - protgroup_offset; | |
2122 | ||
2123 | /* must be integer multiple of the DIF block length */ | |
2124 | BUG_ON(protgroup_len % 8); | |
2125 | ||
2126 | pde7 = (struct lpfc_pde7 *) bpl; | |
2127 | memset(pde7, 0, sizeof(struct lpfc_pde7)); | |
2128 | bf_set(pde7_type, pde7, LPFC_PDE7_DESCRIPTOR); | |
2129 | ||
2130 | pde7->addrHigh = le32_to_cpu(putPaddrHigh(protphysaddr)); | |
2131 | pde7->addrLow = le32_to_cpu(putPaddrLow(protphysaddr)); | |
2132 | ||
2133 | protgrp_blks = protgroup_len / 8; | |
2134 | protgrp_bytes = protgrp_blks * blksize; | |
2135 | ||
2136 | /* check if this pde is crossing the 4K boundary; if so split */ | |
2137 | if ((pde7->addrLow & 0xfff) + protgroup_len > 0x1000) { | |
2138 | protgroup_remainder = 0x1000 - (pde7->addrLow & 0xfff); | |
2139 | protgroup_offset += protgroup_remainder; | |
2140 | protgrp_blks = protgroup_remainder / 8; | |
2141 | protgrp_bytes = protgrp_blks * blksize; | |
2142 | } else { | |
2143 | protgroup_offset = 0; | |
2144 | curr_prot++; | |
2145 | } | |
2146 | ||
2147 | num_bde++; | |
2148 | ||
2149 | /* setup BDE's for data blocks associated with DIF data */ | |
2150 | pgdone = 0; | |
2151 | subtotal = 0; /* total bytes processed for current prot grp */ | |
2152 | while (!pgdone) { | |
96f7077f JS |
2153 | /* Check to see if we ran out of space */ |
2154 | if (num_bde >= phba->cfg_total_seg_cnt) | |
2155 | return num_bde + 1; | |
2156 | ||
acd6859b JS |
2157 | if (!sgde) { |
2158 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
2159 | "9065 BLKGRD:%s Invalid data segment\n", | |
2160 | __func__); | |
2161 | return 0; | |
2162 | } | |
2163 | bpl++; | |
2164 | dataphysaddr = sg_dma_address(sgde) + split_offset; | |
2165 | bpl->addrLow = le32_to_cpu(putPaddrLow(dataphysaddr)); | |
2166 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(dataphysaddr)); | |
2167 | ||
2168 | remainder = sg_dma_len(sgde) - split_offset; | |
2169 | ||
2170 | if ((subtotal + remainder) <= protgrp_bytes) { | |
2171 | /* we can use this whole buffer */ | |
2172 | bpl->tus.f.bdeSize = remainder; | |
2173 | split_offset = 0; | |
2174 | ||
2175 | if ((subtotal + remainder) == protgrp_bytes) | |
2176 | pgdone = 1; | |
2177 | } else { | |
2178 | /* must split this buffer with next prot grp */ | |
2179 | bpl->tus.f.bdeSize = protgrp_bytes - subtotal; | |
2180 | split_offset += bpl->tus.f.bdeSize; | |
2181 | } | |
2182 | ||
2183 | subtotal += bpl->tus.f.bdeSize; | |
2184 | ||
2185 | if (datadir == DMA_TO_DEVICE) | |
2186 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
2187 | else | |
2188 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
2189 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
2190 | ||
2191 | num_bde++; | |
2192 | curr_data++; | |
2193 | ||
2194 | if (split_offset) | |
2195 | break; | |
2196 | ||
2197 | /* Move to the next s/g segment if possible */ | |
2198 | sgde = sg_next(sgde); | |
2199 | ||
2200 | } | |
2201 | ||
2202 | if (protgroup_offset) { | |
2203 | /* update the reference tag */ | |
2204 | reftag += protgrp_blks; | |
2205 | bpl++; | |
2206 | continue; | |
2207 | } | |
2208 | ||
2209 | /* are we done ? */ | |
2210 | if (curr_prot == protcnt) { | |
2211 | alldone = 1; | |
2212 | } else if (curr_prot < protcnt) { | |
2213 | /* advance to next prot buffer */ | |
2214 | sgpe = sg_next(sgpe); | |
2215 | bpl++; | |
2216 | ||
2217 | /* update the reference tag */ | |
2218 | reftag += protgrp_blks; | |
2219 | } else { | |
2220 | /* if we're here, we have a bug */ | |
2221 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
2222 | "9054 BLKGRD: bug in %s\n", __func__); | |
2223 | } | |
2224 | ||
2225 | } while (!alldone); | |
2226 | out: | |
2227 | ||
2228 | return num_bde; | |
2229 | } | |
2230 | ||
2231 | /** | |
2232 | * lpfc_bg_setup_sgl - Setup BlockGuard SGL with no protection data | |
2233 | * @phba: The Hba for which this call is being executed. | |
2234 | * @sc: pointer to scsi command we're working on | |
2235 | * @sgl: pointer to buffer list for protection groups | |
2236 | * @datacnt: number of segments of data that have been dma mapped | |
2237 | * | |
2238 | * This function sets up SGL buffer list for protection groups of | |
2239 | * type LPFC_PG_TYPE_NO_DIF | |
2240 | * | |
2241 | * This is usually used when the HBA is instructed to generate | |
2242 | * DIFs and insert them into data stream (or strip DIF from | |
2243 | * incoming data stream) | |
2244 | * | |
2245 | * The buffer list consists of just one protection group described | |
2246 | * below: | |
2247 | * +-------------------------+ | |
2248 | * start of prot group --> | DI_SEED | | |
2249 | * +-------------------------+ | |
2250 | * | Data SGE | | |
2251 | * +-------------------------+ | |
2252 | * |more Data SGE's ... (opt)| | |
2253 | * +-------------------------+ | |
2254 | * | |
2255 | * | |
2256 | * Note: Data s/g buffers have been dma mapped | |
2257 | * | |
2258 | * Returns the number of SGEs added to the SGL. | |
2259 | **/ | |
2260 | static int | |
2261 | lpfc_bg_setup_sgl(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
2262 | struct sli4_sge *sgl, int datasegcnt) | |
2263 | { | |
2264 | struct scatterlist *sgde = NULL; /* s/g data entry */ | |
2265 | struct sli4_sge_diseed *diseed = NULL; | |
2266 | dma_addr_t physaddr; | |
2267 | int i = 0, num_sge = 0, status; | |
acd6859b | 2268 | uint32_t reftag; |
acd6859b | 2269 | uint8_t txop, rxop; |
0829a19a | 2270 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 2271 | uint32_t rc; |
0829a19a | 2272 | #endif |
acd6859b JS |
2273 | uint32_t checking = 1; |
2274 | uint32_t dma_len; | |
2275 | uint32_t dma_offset = 0; | |
2276 | ||
2277 | status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop); | |
2278 | if (status) | |
2279 | goto out; | |
2280 | ||
2281 | /* extract some info from the scsi command for pde*/ | |
acd6859b JS |
2282 | reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */ |
2283 | ||
2284 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS | |
4ac9b226 | 2285 | rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); |
acd6859b | 2286 | if (rc) { |
9a6b09c0 | 2287 | if (rc & BG_ERR_SWAP) |
acd6859b | 2288 | lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); |
9a6b09c0 | 2289 | if (rc & BG_ERR_CHECK) |
acd6859b JS |
2290 | checking = 0; |
2291 | } | |
2292 | #endif | |
2293 | ||
2294 | /* setup DISEED with what we have */ | |
2295 | diseed = (struct sli4_sge_diseed *) sgl; | |
2296 | memset(diseed, 0, sizeof(struct sli4_sge_diseed)); | |
2297 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DISEED); | |
2298 | ||
2299 | /* Endianness conversion if necessary */ | |
2300 | diseed->ref_tag = cpu_to_le32(reftag); | |
2301 | diseed->ref_tag_tran = diseed->ref_tag; | |
2302 | ||
a6887e28 JS |
2303 | /* |
2304 | * We only need to check the data on READs, for WRITEs | |
2305 | * protection data is automatically generated, not checked. | |
2306 | */ | |
2307 | if (sc->sc_data_direction == DMA_FROM_DEVICE) { | |
9c6aa9d7 | 2308 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_GUARD)) |
a6887e28 JS |
2309 | bf_set(lpfc_sli4_sge_dif_ce, diseed, checking); |
2310 | else | |
2311 | bf_set(lpfc_sli4_sge_dif_ce, diseed, 0); | |
2312 | ||
9c6aa9d7 | 2313 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_REF)) |
a6887e28 JS |
2314 | bf_set(lpfc_sli4_sge_dif_re, diseed, checking); |
2315 | else | |
2316 | bf_set(lpfc_sli4_sge_dif_re, diseed, 0); | |
2317 | } | |
2318 | ||
acd6859b JS |
2319 | /* setup DISEED with the rest of the info */ |
2320 | bf_set(lpfc_sli4_sge_dif_optx, diseed, txop); | |
2321 | bf_set(lpfc_sli4_sge_dif_oprx, diseed, rxop); | |
a6887e28 | 2322 | |
acd6859b JS |
2323 | bf_set(lpfc_sli4_sge_dif_ai, diseed, 1); |
2324 | bf_set(lpfc_sli4_sge_dif_me, diseed, 0); | |
2325 | ||
2326 | /* Endianness conversion if necessary for DISEED */ | |
2327 | diseed->word2 = cpu_to_le32(diseed->word2); | |
2328 | diseed->word3 = cpu_to_le32(diseed->word3); | |
2329 | ||
2330 | /* advance bpl and increment sge count */ | |
2331 | num_sge++; | |
2332 | sgl++; | |
2333 | ||
2334 | /* assumption: caller has already run dma_map_sg on command data */ | |
2335 | scsi_for_each_sg(sc, sgde, datasegcnt, i) { | |
2336 | physaddr = sg_dma_address(sgde); | |
2337 | dma_len = sg_dma_len(sgde); | |
2338 | sgl->addr_lo = cpu_to_le32(putPaddrLow(physaddr)); | |
2339 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(physaddr)); | |
2340 | if ((i + 1) == datasegcnt) | |
2341 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
2342 | else | |
2343 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
2344 | bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); | |
2345 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA); | |
2346 | ||
2347 | sgl->sge_len = cpu_to_le32(dma_len); | |
2348 | dma_offset += dma_len; | |
2349 | ||
2350 | sgl++; | |
2351 | num_sge++; | |
2352 | } | |
2353 | ||
2354 | out: | |
2355 | return num_sge; | |
2356 | } | |
2357 | ||
2358 | /** | |
2359 | * lpfc_bg_setup_sgl_prot - Setup BlockGuard SGL with protection data | |
2360 | * @phba: The Hba for which this call is being executed. | |
2361 | * @sc: pointer to scsi command we're working on | |
2362 | * @sgl: pointer to buffer list for protection groups | |
2363 | * @datacnt: number of segments of data that have been dma mapped | |
2364 | * @protcnt: number of segment of protection data that have been dma mapped | |
2365 | * | |
2366 | * This function sets up SGL buffer list for protection groups of | |
2367 | * type LPFC_PG_TYPE_DIF | |
2368 | * | |
2369 | * This is usually used when DIFs are in their own buffers, | |
2370 | * separate from the data. The HBA can then by instructed | |
2371 | * to place the DIFs in the outgoing stream. For read operations, | |
2372 | * The HBA could extract the DIFs and place it in DIF buffers. | |
2373 | * | |
2374 | * The buffer list for this type consists of one or more of the | |
2375 | * protection groups described below: | |
2376 | * +-------------------------+ | |
2377 | * start of first prot group --> | DISEED | | |
2378 | * +-------------------------+ | |
2379 | * | DIF (Prot SGE) | | |
2380 | * +-------------------------+ | |
2381 | * | Data SGE | | |
2382 | * +-------------------------+ | |
2383 | * |more Data SGE's ... (opt)| | |
2384 | * +-------------------------+ | |
2385 | * start of new prot group --> | DISEED | | |
2386 | * +-------------------------+ | |
2387 | * | ... | | |
2388 | * +-------------------------+ | |
2389 | * | |
2390 | * Note: It is assumed that both data and protection s/g buffers have been | |
2391 | * mapped for DMA | |
2392 | * | |
2393 | * Returns the number of SGEs added to the SGL. | |
2394 | **/ | |
2395 | static int | |
2396 | lpfc_bg_setup_sgl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
2397 | struct sli4_sge *sgl, int datacnt, int protcnt) | |
2398 | { | |
2399 | struct scatterlist *sgde = NULL; /* s/g data entry */ | |
2400 | struct scatterlist *sgpe = NULL; /* s/g prot entry */ | |
2401 | struct sli4_sge_diseed *diseed = NULL; | |
2402 | dma_addr_t dataphysaddr, protphysaddr; | |
2403 | unsigned short curr_data = 0, curr_prot = 0; | |
2404 | unsigned int split_offset; | |
2405 | unsigned int protgroup_len, protgroup_offset = 0, protgroup_remainder; | |
2406 | unsigned int protgrp_blks, protgrp_bytes; | |
2407 | unsigned int remainder, subtotal; | |
2408 | int status; | |
2409 | unsigned char pgdone = 0, alldone = 0; | |
2410 | unsigned blksize; | |
2411 | uint32_t reftag; | |
2412 | uint8_t txop, rxop; | |
2413 | uint32_t dma_len; | |
0829a19a | 2414 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 2415 | uint32_t rc; |
0829a19a | 2416 | #endif |
acd6859b JS |
2417 | uint32_t checking = 1; |
2418 | uint32_t dma_offset = 0; | |
2419 | int num_sge = 0; | |
2420 | ||
2421 | sgpe = scsi_prot_sglist(sc); | |
2422 | sgde = scsi_sglist(sc); | |
2423 | ||
2424 | if (!sgpe || !sgde) { | |
2425 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, | |
2426 | "9082 Invalid s/g entry: data=0x%p prot=0x%p\n", | |
e2a0a9d6 JS |
2427 | sgpe, sgde); |
2428 | return 0; | |
2429 | } | |
2430 | ||
6c8eea54 JS |
2431 | status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop); |
2432 | if (status) | |
e2a0a9d6 JS |
2433 | goto out; |
2434 | ||
6c8eea54 | 2435 | /* extract some info from the scsi command */ |
e2a0a9d6 | 2436 | blksize = lpfc_cmd_blksize(sc); |
acd6859b | 2437 | reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */ |
e2a0a9d6 | 2438 | |
f9bb2da1 | 2439 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
4ac9b226 | 2440 | rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); |
acd6859b | 2441 | if (rc) { |
9a6b09c0 | 2442 | if (rc & BG_ERR_SWAP) |
acd6859b | 2443 | lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); |
9a6b09c0 | 2444 | if (rc & BG_ERR_CHECK) |
acd6859b JS |
2445 | checking = 0; |
2446 | } | |
f9bb2da1 JS |
2447 | #endif |
2448 | ||
e2a0a9d6 JS |
2449 | split_offset = 0; |
2450 | do { | |
96f7077f JS |
2451 | /* Check to see if we ran out of space */ |
2452 | if (num_sge >= (phba->cfg_total_seg_cnt - 2)) | |
2453 | return num_sge + 3; | |
2454 | ||
acd6859b JS |
2455 | /* setup DISEED with what we have */ |
2456 | diseed = (struct sli4_sge_diseed *) sgl; | |
2457 | memset(diseed, 0, sizeof(struct sli4_sge_diseed)); | |
2458 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DISEED); | |
2459 | ||
2460 | /* Endianness conversion if necessary */ | |
2461 | diseed->ref_tag = cpu_to_le32(reftag); | |
2462 | diseed->ref_tag_tran = diseed->ref_tag; | |
2463 | ||
9c6aa9d7 | 2464 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_GUARD)) { |
a6887e28 JS |
2465 | bf_set(lpfc_sli4_sge_dif_ce, diseed, checking); |
2466 | ||
2467 | } else { | |
2468 | bf_set(lpfc_sli4_sge_dif_ce, diseed, 0); | |
2469 | /* | |
2470 | * When in this mode, the hardware will replace | |
2471 | * the guard tag from the host with a | |
2472 | * newly generated good CRC for the wire. | |
2473 | * Switch to raw mode here to avoid this | |
2474 | * behavior. What the host sends gets put on the wire. | |
2475 | */ | |
2476 | if (txop == BG_OP_IN_CRC_OUT_CRC) { | |
2477 | txop = BG_OP_RAW_MODE; | |
2478 | rxop = BG_OP_RAW_MODE; | |
2479 | } | |
2480 | } | |
2481 | ||
2482 | ||
9c6aa9d7 | 2483 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_REF)) |
a6887e28 JS |
2484 | bf_set(lpfc_sli4_sge_dif_re, diseed, checking); |
2485 | else | |
2486 | bf_set(lpfc_sli4_sge_dif_re, diseed, 0); | |
2487 | ||
acd6859b JS |
2488 | /* setup DISEED with the rest of the info */ |
2489 | bf_set(lpfc_sli4_sge_dif_optx, diseed, txop); | |
2490 | bf_set(lpfc_sli4_sge_dif_oprx, diseed, rxop); | |
a6887e28 | 2491 | |
acd6859b JS |
2492 | bf_set(lpfc_sli4_sge_dif_ai, diseed, 1); |
2493 | bf_set(lpfc_sli4_sge_dif_me, diseed, 0); | |
2494 | ||
2495 | /* Endianness conversion if necessary for DISEED */ | |
2496 | diseed->word2 = cpu_to_le32(diseed->word2); | |
2497 | diseed->word3 = cpu_to_le32(diseed->word3); | |
2498 | ||
2499 | /* advance sgl and increment bde count */ | |
2500 | num_sge++; | |
2501 | sgl++; | |
e2a0a9d6 JS |
2502 | |
2503 | /* setup the first BDE that points to protection buffer */ | |
7f86059a JS |
2504 | protphysaddr = sg_dma_address(sgpe) + protgroup_offset; |
2505 | protgroup_len = sg_dma_len(sgpe) - protgroup_offset; | |
e2a0a9d6 | 2506 | |
e2a0a9d6 JS |
2507 | /* must be integer multiple of the DIF block length */ |
2508 | BUG_ON(protgroup_len % 8); | |
2509 | ||
acd6859b JS |
2510 | /* Now setup DIF SGE */ |
2511 | sgl->word2 = 0; | |
2512 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DIF); | |
2513 | sgl->addr_hi = le32_to_cpu(putPaddrHigh(protphysaddr)); | |
2514 | sgl->addr_lo = le32_to_cpu(putPaddrLow(protphysaddr)); | |
2515 | sgl->word2 = cpu_to_le32(sgl->word2); | |
7f86059a | 2516 | |
e2a0a9d6 JS |
2517 | protgrp_blks = protgroup_len / 8; |
2518 | protgrp_bytes = protgrp_blks * blksize; | |
2519 | ||
acd6859b JS |
2520 | /* check if DIF SGE is crossing the 4K boundary; if so split */ |
2521 | if ((sgl->addr_lo & 0xfff) + protgroup_len > 0x1000) { | |
2522 | protgroup_remainder = 0x1000 - (sgl->addr_lo & 0xfff); | |
7f86059a JS |
2523 | protgroup_offset += protgroup_remainder; |
2524 | protgrp_blks = protgroup_remainder / 8; | |
7c56b9fd | 2525 | protgrp_bytes = protgrp_blks * blksize; |
7f86059a JS |
2526 | } else { |
2527 | protgroup_offset = 0; | |
2528 | curr_prot++; | |
2529 | } | |
e2a0a9d6 | 2530 | |
acd6859b | 2531 | num_sge++; |
e2a0a9d6 | 2532 | |
acd6859b | 2533 | /* setup SGE's for data blocks associated with DIF data */ |
e2a0a9d6 JS |
2534 | pgdone = 0; |
2535 | subtotal = 0; /* total bytes processed for current prot grp */ | |
2536 | while (!pgdone) { | |
96f7077f JS |
2537 | /* Check to see if we ran out of space */ |
2538 | if (num_sge >= phba->cfg_total_seg_cnt) | |
2539 | return num_sge + 1; | |
2540 | ||
e2a0a9d6 | 2541 | if (!sgde) { |
6a9c52cf | 2542 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
acd6859b | 2543 | "9086 BLKGRD:%s Invalid data segment\n", |
e2a0a9d6 JS |
2544 | __func__); |
2545 | return 0; | |
2546 | } | |
acd6859b | 2547 | sgl++; |
e2a0a9d6 | 2548 | dataphysaddr = sg_dma_address(sgde) + split_offset; |
e2a0a9d6 JS |
2549 | |
2550 | remainder = sg_dma_len(sgde) - split_offset; | |
2551 | ||
2552 | if ((subtotal + remainder) <= protgrp_bytes) { | |
2553 | /* we can use this whole buffer */ | |
acd6859b | 2554 | dma_len = remainder; |
e2a0a9d6 JS |
2555 | split_offset = 0; |
2556 | ||
2557 | if ((subtotal + remainder) == protgrp_bytes) | |
2558 | pgdone = 1; | |
2559 | } else { | |
2560 | /* must split this buffer with next prot grp */ | |
acd6859b JS |
2561 | dma_len = protgrp_bytes - subtotal; |
2562 | split_offset += dma_len; | |
e2a0a9d6 JS |
2563 | } |
2564 | ||
acd6859b | 2565 | subtotal += dma_len; |
e2a0a9d6 | 2566 | |
acd6859b JS |
2567 | sgl->addr_lo = cpu_to_le32(putPaddrLow(dataphysaddr)); |
2568 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(dataphysaddr)); | |
2569 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
2570 | bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); | |
2571 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA); | |
e2a0a9d6 | 2572 | |
acd6859b JS |
2573 | sgl->sge_len = cpu_to_le32(dma_len); |
2574 | dma_offset += dma_len; | |
2575 | ||
2576 | num_sge++; | |
e2a0a9d6 JS |
2577 | curr_data++; |
2578 | ||
2579 | if (split_offset) | |
2580 | break; | |
2581 | ||
2582 | /* Move to the next s/g segment if possible */ | |
2583 | sgde = sg_next(sgde); | |
2584 | } | |
2585 | ||
7f86059a JS |
2586 | if (protgroup_offset) { |
2587 | /* update the reference tag */ | |
2588 | reftag += protgrp_blks; | |
acd6859b | 2589 | sgl++; |
7f86059a JS |
2590 | continue; |
2591 | } | |
2592 | ||
e2a0a9d6 JS |
2593 | /* are we done ? */ |
2594 | if (curr_prot == protcnt) { | |
acd6859b | 2595 | bf_set(lpfc_sli4_sge_last, sgl, 1); |
e2a0a9d6 JS |
2596 | alldone = 1; |
2597 | } else if (curr_prot < protcnt) { | |
2598 | /* advance to next prot buffer */ | |
2599 | sgpe = sg_next(sgpe); | |
acd6859b | 2600 | sgl++; |
e2a0a9d6 JS |
2601 | |
2602 | /* update the reference tag */ | |
2603 | reftag += protgrp_blks; | |
2604 | } else { | |
2605 | /* if we're here, we have a bug */ | |
6a9c52cf | 2606 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
acd6859b | 2607 | "9085 BLKGRD: bug in %s\n", __func__); |
e2a0a9d6 JS |
2608 | } |
2609 | ||
2610 | } while (!alldone); | |
acd6859b | 2611 | |
e2a0a9d6 JS |
2612 | out: |
2613 | ||
acd6859b | 2614 | return num_sge; |
e2a0a9d6 | 2615 | } |
7f86059a | 2616 | |
acd6859b JS |
2617 | /** |
2618 | * lpfc_prot_group_type - Get prtotection group type of SCSI command | |
2619 | * @phba: The Hba for which this call is being executed. | |
2620 | * @sc: pointer to scsi command we're working on | |
2621 | * | |
e2a0a9d6 JS |
2622 | * Given a SCSI command that supports DIF, determine composition of protection |
2623 | * groups involved in setting up buffer lists | |
2624 | * | |
acd6859b JS |
2625 | * Returns: Protection group type (with or without DIF) |
2626 | * | |
2627 | **/ | |
e2a0a9d6 JS |
2628 | static int |
2629 | lpfc_prot_group_type(struct lpfc_hba *phba, struct scsi_cmnd *sc) | |
2630 | { | |
2631 | int ret = LPFC_PG_TYPE_INVALID; | |
2632 | unsigned char op = scsi_get_prot_op(sc); | |
2633 | ||
2634 | switch (op) { | |
2635 | case SCSI_PROT_READ_STRIP: | |
2636 | case SCSI_PROT_WRITE_INSERT: | |
2637 | ret = LPFC_PG_TYPE_NO_DIF; | |
2638 | break; | |
2639 | case SCSI_PROT_READ_INSERT: | |
2640 | case SCSI_PROT_WRITE_STRIP: | |
2641 | case SCSI_PROT_READ_PASS: | |
2642 | case SCSI_PROT_WRITE_PASS: | |
e2a0a9d6 JS |
2643 | ret = LPFC_PG_TYPE_DIF_BUF; |
2644 | break; | |
2645 | default: | |
9c6aa9d7 JS |
2646 | if (phba) |
2647 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, | |
2648 | "9021 Unsupported protection op:%d\n", | |
2649 | op); | |
e2a0a9d6 JS |
2650 | break; |
2651 | } | |
e2a0a9d6 JS |
2652 | return ret; |
2653 | } | |
2654 | ||
a6887e28 JS |
2655 | /** |
2656 | * lpfc_bg_scsi_adjust_dl - Adjust SCSI data length for BlockGuard | |
2657 | * @phba: The Hba for which this call is being executed. | |
2658 | * @lpfc_cmd: The scsi buffer which is going to be adjusted. | |
2659 | * | |
2660 | * Adjust the data length to account for how much data | |
2661 | * is actually on the wire. | |
2662 | * | |
2663 | * returns the adjusted data length | |
2664 | **/ | |
2665 | static int | |
2666 | lpfc_bg_scsi_adjust_dl(struct lpfc_hba *phba, | |
2667 | struct lpfc_scsi_buf *lpfc_cmd) | |
2668 | { | |
2669 | struct scsi_cmnd *sc = lpfc_cmd->pCmd; | |
2670 | int fcpdl; | |
2671 | ||
2672 | fcpdl = scsi_bufflen(sc); | |
2673 | ||
2674 | /* Check if there is protection data on the wire */ | |
2675 | if (sc->sc_data_direction == DMA_FROM_DEVICE) { | |
9c6aa9d7 | 2676 | /* Read check for protection data */ |
a6887e28 JS |
2677 | if (scsi_get_prot_op(sc) == SCSI_PROT_READ_INSERT) |
2678 | return fcpdl; | |
2679 | ||
2680 | } else { | |
9c6aa9d7 | 2681 | /* Write check for protection data */ |
a6887e28 JS |
2682 | if (scsi_get_prot_op(sc) == SCSI_PROT_WRITE_STRIP) |
2683 | return fcpdl; | |
2684 | } | |
2685 | ||
2686 | /* | |
2687 | * If we are in DIF Type 1 mode every data block has a 8 byte | |
9c6aa9d7 JS |
2688 | * DIF (trailer) attached to it. Must ajust FCP data length |
2689 | * to account for the protection data. | |
a6887e28 | 2690 | */ |
9c6aa9d7 | 2691 | fcpdl += (fcpdl / lpfc_cmd_blksize(sc)) * 8; |
a6887e28 JS |
2692 | |
2693 | return fcpdl; | |
2694 | } | |
2695 | ||
acd6859b JS |
2696 | /** |
2697 | * lpfc_bg_scsi_prep_dma_buf_s3 - DMA mapping for scsi buffer to SLI3 IF spec | |
2698 | * @phba: The Hba for which this call is being executed. | |
2699 | * @lpfc_cmd: The scsi buffer which is going to be prep'ed. | |
2700 | * | |
e2a0a9d6 JS |
2701 | * This is the protection/DIF aware version of |
2702 | * lpfc_scsi_prep_dma_buf(). It may be a good idea to combine the | |
2703 | * two functions eventually, but for now, it's here | |
acd6859b | 2704 | **/ |
e2a0a9d6 | 2705 | static int |
acd6859b | 2706 | lpfc_bg_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, |
e2a0a9d6 JS |
2707 | struct lpfc_scsi_buf *lpfc_cmd) |
2708 | { | |
2709 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
2710 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
2711 | struct ulp_bde64 *bpl = lpfc_cmd->fcp_bpl; | |
2712 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; | |
2713 | uint32_t num_bde = 0; | |
2714 | int datasegcnt, protsegcnt, datadir = scsi_cmnd->sc_data_direction; | |
2715 | int prot_group_type = 0; | |
a6887e28 | 2716 | int fcpdl; |
e2a0a9d6 JS |
2717 | |
2718 | /* | |
2719 | * Start the lpfc command prep by bumping the bpl beyond fcp_cmnd | |
2720 | * fcp_rsp regions to the first data bde entry | |
2721 | */ | |
2722 | bpl += 2; | |
2723 | if (scsi_sg_count(scsi_cmnd)) { | |
2724 | /* | |
2725 | * The driver stores the segment count returned from pci_map_sg | |
2726 | * because this a count of dma-mappings used to map the use_sg | |
2727 | * pages. They are not guaranteed to be the same for those | |
2728 | * architectures that implement an IOMMU. | |
2729 | */ | |
2730 | datasegcnt = dma_map_sg(&phba->pcidev->dev, | |
2731 | scsi_sglist(scsi_cmnd), | |
2732 | scsi_sg_count(scsi_cmnd), datadir); | |
2733 | if (unlikely(!datasegcnt)) | |
2734 | return 1; | |
2735 | ||
2736 | lpfc_cmd->seg_cnt = datasegcnt; | |
96f7077f JS |
2737 | |
2738 | /* First check if data segment count from SCSI Layer is good */ | |
2739 | if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) | |
2740 | goto err; | |
e2a0a9d6 JS |
2741 | |
2742 | prot_group_type = lpfc_prot_group_type(phba, scsi_cmnd); | |
2743 | ||
2744 | switch (prot_group_type) { | |
2745 | case LPFC_PG_TYPE_NO_DIF: | |
96f7077f JS |
2746 | |
2747 | /* Here we need to add a PDE5 and PDE6 to the count */ | |
2748 | if ((lpfc_cmd->seg_cnt + 2) > phba->cfg_total_seg_cnt) | |
2749 | goto err; | |
2750 | ||
e2a0a9d6 JS |
2751 | num_bde = lpfc_bg_setup_bpl(phba, scsi_cmnd, bpl, |
2752 | datasegcnt); | |
c9404c9c | 2753 | /* we should have 2 or more entries in buffer list */ |
e2a0a9d6 JS |
2754 | if (num_bde < 2) |
2755 | goto err; | |
2756 | break; | |
96f7077f JS |
2757 | |
2758 | case LPFC_PG_TYPE_DIF_BUF: | |
e2a0a9d6 JS |
2759 | /* |
2760 | * This type indicates that protection buffers are | |
2761 | * passed to the driver, so that needs to be prepared | |
2762 | * for DMA | |
2763 | */ | |
2764 | protsegcnt = dma_map_sg(&phba->pcidev->dev, | |
2765 | scsi_prot_sglist(scsi_cmnd), | |
2766 | scsi_prot_sg_count(scsi_cmnd), datadir); | |
2767 | if (unlikely(!protsegcnt)) { | |
2768 | scsi_dma_unmap(scsi_cmnd); | |
2769 | return 1; | |
2770 | } | |
2771 | ||
2772 | lpfc_cmd->prot_seg_cnt = protsegcnt; | |
96f7077f JS |
2773 | |
2774 | /* | |
2775 | * There is a minimun of 4 BPLs used for every | |
2776 | * protection data segment. | |
2777 | */ | |
2778 | if ((lpfc_cmd->prot_seg_cnt * 4) > | |
2779 | (phba->cfg_total_seg_cnt - 2)) | |
2780 | goto err; | |
e2a0a9d6 JS |
2781 | |
2782 | num_bde = lpfc_bg_setup_bpl_prot(phba, scsi_cmnd, bpl, | |
2783 | datasegcnt, protsegcnt); | |
c9404c9c | 2784 | /* we should have 3 or more entries in buffer list */ |
96f7077f JS |
2785 | if ((num_bde < 3) || |
2786 | (num_bde > phba->cfg_total_seg_cnt)) | |
e2a0a9d6 JS |
2787 | goto err; |
2788 | break; | |
96f7077f | 2789 | |
e2a0a9d6 JS |
2790 | case LPFC_PG_TYPE_INVALID: |
2791 | default: | |
96f7077f JS |
2792 | scsi_dma_unmap(scsi_cmnd); |
2793 | lpfc_cmd->seg_cnt = 0; | |
2794 | ||
e2a0a9d6 JS |
2795 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, |
2796 | "9022 Unexpected protection group %i\n", | |
2797 | prot_group_type); | |
2798 | return 1; | |
2799 | } | |
2800 | } | |
2801 | ||
2802 | /* | |
2803 | * Finish initializing those IOCB fields that are dependent on the | |
2804 | * scsi_cmnd request_buffer. Note that the bdeSize is explicitly | |
2805 | * reinitialized since all iocb memory resources are used many times | |
2806 | * for transmit, receive, and continuation bpl's. | |
2807 | */ | |
2808 | iocb_cmd->un.fcpi64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64)); | |
2809 | iocb_cmd->un.fcpi64.bdl.bdeSize += (num_bde * sizeof(struct ulp_bde64)); | |
2810 | iocb_cmd->ulpBdeCount = 1; | |
2811 | iocb_cmd->ulpLe = 1; | |
2812 | ||
a6887e28 | 2813 | fcpdl = lpfc_bg_scsi_adjust_dl(phba, lpfc_cmd); |
e2a0a9d6 JS |
2814 | fcp_cmnd->fcpDl = be32_to_cpu(fcpdl); |
2815 | ||
2816 | /* | |
2817 | * Due to difference in data length between DIF/non-DIF paths, | |
2818 | * we need to set word 4 of IOCB here | |
2819 | */ | |
2820 | iocb_cmd->un.fcpi.fcpi_parm = fcpdl; | |
2821 | ||
dea3101e | 2822 | return 0; |
e2a0a9d6 | 2823 | err: |
96f7077f JS |
2824 | if (lpfc_cmd->seg_cnt) |
2825 | scsi_dma_unmap(scsi_cmnd); | |
2826 | if (lpfc_cmd->prot_seg_cnt) | |
2827 | dma_unmap_sg(&phba->pcidev->dev, scsi_prot_sglist(scsi_cmnd), | |
2828 | scsi_prot_sg_count(scsi_cmnd), | |
2829 | scsi_cmnd->sc_data_direction); | |
2830 | ||
e2a0a9d6 | 2831 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, |
96f7077f JS |
2832 | "9023 Cannot setup S/G List for HBA" |
2833 | "IO segs %d/%d BPL %d SCSI %d: %d %d\n", | |
2834 | lpfc_cmd->seg_cnt, lpfc_cmd->prot_seg_cnt, | |
2835 | phba->cfg_total_seg_cnt, phba->cfg_sg_seg_cnt, | |
e2a0a9d6 | 2836 | prot_group_type, num_bde); |
96f7077f JS |
2837 | |
2838 | lpfc_cmd->seg_cnt = 0; | |
2839 | lpfc_cmd->prot_seg_cnt = 0; | |
e2a0a9d6 JS |
2840 | return 1; |
2841 | } | |
2842 | ||
737d4248 JS |
2843 | /* |
2844 | * This function calcuates the T10 DIF guard tag | |
2845 | * on the specified data using a CRC algorithmn | |
2846 | * using crc_t10dif. | |
2847 | */ | |
7bfe781e | 2848 | static uint16_t |
737d4248 JS |
2849 | lpfc_bg_crc(uint8_t *data, int count) |
2850 | { | |
2851 | uint16_t crc = 0; | |
2852 | uint16_t x; | |
2853 | ||
2854 | crc = crc_t10dif(data, count); | |
2855 | x = cpu_to_be16(crc); | |
2856 | return x; | |
2857 | } | |
2858 | ||
2859 | /* | |
2860 | * This function calcuates the T10 DIF guard tag | |
2861 | * on the specified data using a CSUM algorithmn | |
2862 | * using ip_compute_csum. | |
2863 | */ | |
7bfe781e | 2864 | static uint16_t |
737d4248 JS |
2865 | lpfc_bg_csum(uint8_t *data, int count) |
2866 | { | |
2867 | uint16_t ret; | |
2868 | ||
2869 | ret = ip_compute_csum(data, count); | |
2870 | return ret; | |
2871 | } | |
2872 | ||
2873 | /* | |
2874 | * This function examines the protection data to try to determine | |
2875 | * what type of T10-DIF error occurred. | |
2876 | */ | |
7bfe781e | 2877 | static void |
737d4248 JS |
2878 | lpfc_calc_bg_err(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) |
2879 | { | |
2880 | struct scatterlist *sgpe; /* s/g prot entry */ | |
2881 | struct scatterlist *sgde; /* s/g data entry */ | |
2882 | struct scsi_cmnd *cmd = lpfc_cmd->pCmd; | |
2883 | struct scsi_dif_tuple *src = NULL; | |
2884 | uint8_t *data_src = NULL; | |
db6f1c2f | 2885 | uint16_t guard_tag; |
737d4248 JS |
2886 | uint16_t start_app_tag, app_tag; |
2887 | uint32_t start_ref_tag, ref_tag; | |
2888 | int prot, protsegcnt; | |
2889 | int err_type, len, data_len; | |
2890 | int chk_ref, chk_app, chk_guard; | |
2891 | uint16_t sum; | |
2892 | unsigned blksize; | |
2893 | ||
2894 | err_type = BGS_GUARD_ERR_MASK; | |
2895 | sum = 0; | |
2896 | guard_tag = 0; | |
2897 | ||
2898 | /* First check to see if there is protection data to examine */ | |
2899 | prot = scsi_get_prot_op(cmd); | |
2900 | if ((prot == SCSI_PROT_READ_STRIP) || | |
2901 | (prot == SCSI_PROT_WRITE_INSERT) || | |
2902 | (prot == SCSI_PROT_NORMAL)) | |
2903 | goto out; | |
2904 | ||
2905 | /* Currently the driver just supports ref_tag and guard_tag checking */ | |
2906 | chk_ref = 1; | |
2907 | chk_app = 0; | |
2908 | chk_guard = 0; | |
2909 | ||
2910 | /* Setup a ptr to the protection data provided by the SCSI host */ | |
2911 | sgpe = scsi_prot_sglist(cmd); | |
2912 | protsegcnt = lpfc_cmd->prot_seg_cnt; | |
2913 | ||
2914 | if (sgpe && protsegcnt) { | |
2915 | ||
2916 | /* | |
2917 | * We will only try to verify guard tag if the segment | |
2918 | * data length is a multiple of the blksize. | |
2919 | */ | |
2920 | sgde = scsi_sglist(cmd); | |
2921 | blksize = lpfc_cmd_blksize(cmd); | |
2922 | data_src = (uint8_t *)sg_virt(sgde); | |
2923 | data_len = sgde->length; | |
2924 | if ((data_len & (blksize - 1)) == 0) | |
2925 | chk_guard = 1; | |
737d4248 | 2926 | |
e85d8f9f | 2927 | src = (struct scsi_dif_tuple *)sg_virt(sgpe); |
a6887e28 | 2928 | start_ref_tag = (uint32_t)scsi_get_lba(cmd); /* Truncate LBA */ |
737d4248 | 2929 | start_app_tag = src->app_tag; |
737d4248 JS |
2930 | len = sgpe->length; |
2931 | while (src && protsegcnt) { | |
2932 | while (len) { | |
2933 | ||
2934 | /* | |
2935 | * First check to see if a protection data | |
2936 | * check is valid | |
2937 | */ | |
128b6f9f DM |
2938 | if ((src->ref_tag == T10_PI_REF_ESCAPE) || |
2939 | (src->app_tag == T10_PI_APP_ESCAPE)) { | |
737d4248 JS |
2940 | start_ref_tag++; |
2941 | goto skipit; | |
2942 | } | |
2943 | ||
9c6aa9d7 | 2944 | /* First Guard Tag checking */ |
737d4248 JS |
2945 | if (chk_guard) { |
2946 | guard_tag = src->guard_tag; | |
9c6aa9d7 | 2947 | if (lpfc_cmd_guard_csum(cmd)) |
737d4248 JS |
2948 | sum = lpfc_bg_csum(data_src, |
2949 | blksize); | |
2950 | else | |
2951 | sum = lpfc_bg_crc(data_src, | |
2952 | blksize); | |
2953 | if ((guard_tag != sum)) { | |
2954 | err_type = BGS_GUARD_ERR_MASK; | |
2955 | goto out; | |
2956 | } | |
2957 | } | |
9c6aa9d7 JS |
2958 | |
2959 | /* Reference Tag checking */ | |
2960 | ref_tag = be32_to_cpu(src->ref_tag); | |
2961 | if (chk_ref && (ref_tag != start_ref_tag)) { | |
2962 | err_type = BGS_REFTAG_ERR_MASK; | |
2963 | goto out; | |
2964 | } | |
2965 | start_ref_tag++; | |
2966 | ||
2967 | /* App Tag checking */ | |
2968 | app_tag = src->app_tag; | |
2969 | if (chk_app && (app_tag != start_app_tag)) { | |
2970 | err_type = BGS_APPTAG_ERR_MASK; | |
2971 | goto out; | |
2972 | } | |
737d4248 JS |
2973 | skipit: |
2974 | len -= sizeof(struct scsi_dif_tuple); | |
2975 | if (len < 0) | |
2976 | len = 0; | |
2977 | src++; | |
2978 | ||
2979 | data_src += blksize; | |
2980 | data_len -= blksize; | |
2981 | ||
2982 | /* | |
2983 | * Are we at the end of the Data segment? | |
2984 | * The data segment is only used for Guard | |
2985 | * tag checking. | |
2986 | */ | |
2987 | if (chk_guard && (data_len == 0)) { | |
2988 | chk_guard = 0; | |
2989 | sgde = sg_next(sgde); | |
2990 | if (!sgde) | |
2991 | goto out; | |
2992 | ||
2993 | data_src = (uint8_t *)sg_virt(sgde); | |
2994 | data_len = sgde->length; | |
2995 | if ((data_len & (blksize - 1)) == 0) | |
2996 | chk_guard = 1; | |
2997 | } | |
2998 | } | |
2999 | ||
3000 | /* Goto the next Protection data segment */ | |
3001 | sgpe = sg_next(sgpe); | |
3002 | if (sgpe) { | |
3003 | src = (struct scsi_dif_tuple *)sg_virt(sgpe); | |
3004 | len = sgpe->length; | |
3005 | } else { | |
3006 | src = NULL; | |
3007 | } | |
3008 | protsegcnt--; | |
3009 | } | |
3010 | } | |
3011 | out: | |
3012 | if (err_type == BGS_GUARD_ERR_MASK) { | |
3013 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
3014 | 0x10, 0x1); | |
3015 | cmd->result = DRIVER_SENSE << 24 | |
3016 | | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); | |
3017 | phba->bg_guard_err_cnt++; | |
3018 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, | |
3019 | "9069 BLKGRD: LBA %lx grd_tag error %x != %x\n", | |
3020 | (unsigned long)scsi_get_lba(cmd), | |
3021 | sum, guard_tag); | |
3022 | ||
3023 | } else if (err_type == BGS_REFTAG_ERR_MASK) { | |
3024 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
3025 | 0x10, 0x3); | |
3026 | cmd->result = DRIVER_SENSE << 24 | |
3027 | | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); | |
3028 | ||
3029 | phba->bg_reftag_err_cnt++; | |
3030 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, | |
3031 | "9066 BLKGRD: LBA %lx ref_tag error %x != %x\n", | |
3032 | (unsigned long)scsi_get_lba(cmd), | |
3033 | ref_tag, start_ref_tag); | |
3034 | ||
3035 | } else if (err_type == BGS_APPTAG_ERR_MASK) { | |
3036 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
3037 | 0x10, 0x2); | |
3038 | cmd->result = DRIVER_SENSE << 24 | |
3039 | | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); | |
3040 | ||
3041 | phba->bg_apptag_err_cnt++; | |
3042 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, | |
3043 | "9041 BLKGRD: LBA %lx app_tag error %x != %x\n", | |
3044 | (unsigned long)scsi_get_lba(cmd), | |
3045 | app_tag, start_app_tag); | |
3046 | } | |
3047 | } | |
3048 | ||
3049 | ||
e2a0a9d6 JS |
3050 | /* |
3051 | * This function checks for BlockGuard errors detected by | |
3052 | * the HBA. In case of errors, the ASC/ASCQ fields in the | |
3053 | * sense buffer will be set accordingly, paired with | |
3054 | * ILLEGAL_REQUEST to signal to the kernel that the HBA | |
3055 | * detected corruption. | |
3056 | * | |
3057 | * Returns: | |
3058 | * 0 - No error found | |
3059 | * 1 - BlockGuard error found | |
3060 | * -1 - Internal error (bad profile, ...etc) | |
3061 | */ | |
3062 | static int | |
3063 | lpfc_parse_bg_err(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd, | |
3064 | struct lpfc_iocbq *pIocbOut) | |
3065 | { | |
3066 | struct scsi_cmnd *cmd = lpfc_cmd->pCmd; | |
3067 | struct sli3_bg_fields *bgf = &pIocbOut->iocb.unsli3.sli3_bg; | |
3068 | int ret = 0; | |
3069 | uint32_t bghm = bgf->bghm; | |
3070 | uint32_t bgstat = bgf->bgstat; | |
3071 | uint64_t failing_sector = 0; | |
3072 | ||
e2a0a9d6 JS |
3073 | spin_lock(&_dump_buf_lock); |
3074 | if (!_dump_buf_done) { | |
6a9c52cf JS |
3075 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, "9070 BLKGRD: Saving" |
3076 | " Data for %u blocks to debugfs\n", | |
e2a0a9d6 | 3077 | (cmd->cmnd[7] << 8 | cmd->cmnd[8])); |
6a9c52cf | 3078 | lpfc_debug_save_data(phba, cmd); |
e2a0a9d6 JS |
3079 | |
3080 | /* If we have a prot sgl, save the DIF buffer */ | |
3081 | if (lpfc_prot_group_type(phba, cmd) == | |
3082 | LPFC_PG_TYPE_DIF_BUF) { | |
6a9c52cf JS |
3083 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, "9071 BLKGRD: " |
3084 | "Saving DIF for %u blocks to debugfs\n", | |
3085 | (cmd->cmnd[7] << 8 | cmd->cmnd[8])); | |
3086 | lpfc_debug_save_dif(phba, cmd); | |
e2a0a9d6 JS |
3087 | } |
3088 | ||
3089 | _dump_buf_done = 1; | |
3090 | } | |
3091 | spin_unlock(&_dump_buf_lock); | |
3092 | ||
3093 | if (lpfc_bgs_get_invalid_prof(bgstat)) { | |
3094 | cmd->result = ScsiResult(DID_ERROR, 0); | |
737d4248 JS |
3095 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
3096 | "9072 BLKGRD: Invalid BG Profile in cmd" | |
3097 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
3098 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
3099 | (unsigned long long)scsi_get_lba(cmd), | |
3100 | blk_rq_sectors(cmd->request), bgstat, bghm); | |
e2a0a9d6 JS |
3101 | ret = (-1); |
3102 | goto out; | |
3103 | } | |
3104 | ||
3105 | if (lpfc_bgs_get_uninit_dif_block(bgstat)) { | |
3106 | cmd->result = ScsiResult(DID_ERROR, 0); | |
737d4248 JS |
3107 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
3108 | "9073 BLKGRD: Invalid BG PDIF Block in cmd" | |
3109 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
3110 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
3111 | (unsigned long long)scsi_get_lba(cmd), | |
3112 | blk_rq_sectors(cmd->request), bgstat, bghm); | |
e2a0a9d6 JS |
3113 | ret = (-1); |
3114 | goto out; | |
3115 | } | |
3116 | ||
3117 | if (lpfc_bgs_get_guard_err(bgstat)) { | |
3118 | ret = 1; | |
3119 | ||
3120 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
3121 | 0x10, 0x1); | |
1c9fbafc | 3122 | cmd->result = DRIVER_SENSE << 24 |
e2a0a9d6 JS |
3123 | | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); |
3124 | phba->bg_guard_err_cnt++; | |
737d4248 JS |
3125 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
3126 | "9055 BLKGRD: Guard Tag error in cmd" | |
3127 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
3128 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
3129 | (unsigned long long)scsi_get_lba(cmd), | |
3130 | blk_rq_sectors(cmd->request), bgstat, bghm); | |
e2a0a9d6 JS |
3131 | } |
3132 | ||
3133 | if (lpfc_bgs_get_reftag_err(bgstat)) { | |
3134 | ret = 1; | |
3135 | ||
3136 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
3137 | 0x10, 0x3); | |
1c9fbafc | 3138 | cmd->result = DRIVER_SENSE << 24 |
e2a0a9d6 JS |
3139 | | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); |
3140 | ||
3141 | phba->bg_reftag_err_cnt++; | |
737d4248 JS |
3142 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
3143 | "9056 BLKGRD: Ref Tag error in cmd" | |
3144 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
3145 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
3146 | (unsigned long long)scsi_get_lba(cmd), | |
3147 | blk_rq_sectors(cmd->request), bgstat, bghm); | |
e2a0a9d6 JS |
3148 | } |
3149 | ||
3150 | if (lpfc_bgs_get_apptag_err(bgstat)) { | |
3151 | ret = 1; | |
3152 | ||
3153 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
3154 | 0x10, 0x2); | |
1c9fbafc | 3155 | cmd->result = DRIVER_SENSE << 24 |
e2a0a9d6 JS |
3156 | | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); |
3157 | ||
3158 | phba->bg_apptag_err_cnt++; | |
737d4248 JS |
3159 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
3160 | "9061 BLKGRD: App Tag error in cmd" | |
3161 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
3162 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
3163 | (unsigned long long)scsi_get_lba(cmd), | |
3164 | blk_rq_sectors(cmd->request), bgstat, bghm); | |
e2a0a9d6 JS |
3165 | } |
3166 | ||
3167 | if (lpfc_bgs_get_hi_water_mark_present(bgstat)) { | |
3168 | /* | |
3169 | * setup sense data descriptor 0 per SPC-4 as an information | |
7c56b9fd JS |
3170 | * field, and put the failing LBA in it. |
3171 | * This code assumes there was also a guard/app/ref tag error | |
3172 | * indication. | |
e2a0a9d6 | 3173 | */ |
7c56b9fd JS |
3174 | cmd->sense_buffer[7] = 0xc; /* Additional sense length */ |
3175 | cmd->sense_buffer[8] = 0; /* Information descriptor type */ | |
3176 | cmd->sense_buffer[9] = 0xa; /* Additional descriptor length */ | |
3177 | cmd->sense_buffer[10] = 0x80; /* Validity bit */ | |
acd6859b JS |
3178 | |
3179 | /* bghm is a "on the wire" FC frame based count */ | |
3180 | switch (scsi_get_prot_op(cmd)) { | |
3181 | case SCSI_PROT_READ_INSERT: | |
3182 | case SCSI_PROT_WRITE_STRIP: | |
3183 | bghm /= cmd->device->sector_size; | |
3184 | break; | |
3185 | case SCSI_PROT_READ_STRIP: | |
3186 | case SCSI_PROT_WRITE_INSERT: | |
3187 | case SCSI_PROT_READ_PASS: | |
3188 | case SCSI_PROT_WRITE_PASS: | |
3189 | bghm /= (cmd->device->sector_size + | |
3190 | sizeof(struct scsi_dif_tuple)); | |
3191 | break; | |
3192 | } | |
e2a0a9d6 JS |
3193 | |
3194 | failing_sector = scsi_get_lba(cmd); | |
3195 | failing_sector += bghm; | |
3196 | ||
7c56b9fd JS |
3197 | /* Descriptor Information */ |
3198 | put_unaligned_be64(failing_sector, &cmd->sense_buffer[12]); | |
e2a0a9d6 JS |
3199 | } |
3200 | ||
3201 | if (!ret) { | |
3202 | /* No error was reported - problem in FW? */ | |
737d4248 JS |
3203 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
3204 | "9057 BLKGRD: Unknown error in cmd" | |
3205 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
3206 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
3207 | (unsigned long long)scsi_get_lba(cmd), | |
3208 | blk_rq_sectors(cmd->request), bgstat, bghm); | |
3209 | ||
3210 | /* Calcuate what type of error it was */ | |
3211 | lpfc_calc_bg_err(phba, lpfc_cmd); | |
e2a0a9d6 | 3212 | } |
e2a0a9d6 JS |
3213 | out: |
3214 | return ret; | |
dea3101e | 3215 | } |
3216 | ||
da0436e9 JS |
3217 | /** |
3218 | * lpfc_scsi_prep_dma_buf_s4 - DMA mapping for scsi buffer to SLI4 IF spec | |
3219 | * @phba: The Hba for which this call is being executed. | |
3220 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
3221 | * | |
3222 | * This routine does the pci dma mapping for scatter-gather list of scsi cmnd | |
3223 | * field of @lpfc_cmd for device with SLI-4 interface spec. | |
3224 | * | |
3225 | * Return codes: | |
6c8eea54 JS |
3226 | * 1 - Error |
3227 | * 0 - Success | |
da0436e9 JS |
3228 | **/ |
3229 | static int | |
3230 | lpfc_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) | |
3231 | { | |
3232 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
3233 | struct scatterlist *sgel = NULL; | |
3234 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
3235 | struct sli4_sge *sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl; | |
fedd3b7b | 3236 | struct sli4_sge *first_data_sgl; |
da0436e9 JS |
3237 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; |
3238 | dma_addr_t physaddr; | |
3239 | uint32_t num_bde = 0; | |
3240 | uint32_t dma_len; | |
3241 | uint32_t dma_offset = 0; | |
3242 | int nseg; | |
fedd3b7b | 3243 | struct ulp_bde64 *bde; |
da0436e9 JS |
3244 | |
3245 | /* | |
3246 | * There are three possibilities here - use scatter-gather segment, use | |
3247 | * the single mapping, or neither. Start the lpfc command prep by | |
3248 | * bumping the bpl beyond the fcp_cmnd and fcp_rsp regions to the first | |
3249 | * data bde entry. | |
3250 | */ | |
3251 | if (scsi_sg_count(scsi_cmnd)) { | |
3252 | /* | |
3253 | * The driver stores the segment count returned from pci_map_sg | |
3254 | * because this a count of dma-mappings used to map the use_sg | |
3255 | * pages. They are not guaranteed to be the same for those | |
3256 | * architectures that implement an IOMMU. | |
3257 | */ | |
3258 | ||
3259 | nseg = scsi_dma_map(scsi_cmnd); | |
5116fbf1 | 3260 | if (unlikely(nseg <= 0)) |
da0436e9 JS |
3261 | return 1; |
3262 | sgl += 1; | |
3263 | /* clear the last flag in the fcp_rsp map entry */ | |
3264 | sgl->word2 = le32_to_cpu(sgl->word2); | |
3265 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
3266 | sgl->word2 = cpu_to_le32(sgl->word2); | |
3267 | sgl += 1; | |
fedd3b7b | 3268 | first_data_sgl = sgl; |
da0436e9 JS |
3269 | lpfc_cmd->seg_cnt = nseg; |
3270 | if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) { | |
6a9c52cf JS |
3271 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, "9074 BLKGRD:" |
3272 | " %s: Too many sg segments from " | |
3273 | "dma_map_sg. Config %d, seg_cnt %d\n", | |
3274 | __func__, phba->cfg_sg_seg_cnt, | |
da0436e9 | 3275 | lpfc_cmd->seg_cnt); |
96f7077f | 3276 | lpfc_cmd->seg_cnt = 0; |
da0436e9 JS |
3277 | scsi_dma_unmap(scsi_cmnd); |
3278 | return 1; | |
3279 | } | |
3280 | ||
3281 | /* | |
3282 | * The driver established a maximum scatter-gather segment count | |
3283 | * during probe that limits the number of sg elements in any | |
3284 | * single scsi command. Just run through the seg_cnt and format | |
3285 | * the sge's. | |
3286 | * When using SLI-3 the driver will try to fit all the BDEs into | |
3287 | * the IOCB. If it can't then the BDEs get added to a BPL as it | |
3288 | * does for SLI-2 mode. | |
3289 | */ | |
3290 | scsi_for_each_sg(scsi_cmnd, sgel, nseg, num_bde) { | |
3291 | physaddr = sg_dma_address(sgel); | |
3292 | dma_len = sg_dma_len(sgel); | |
da0436e9 JS |
3293 | sgl->addr_lo = cpu_to_le32(putPaddrLow(physaddr)); |
3294 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(physaddr)); | |
0558056c | 3295 | sgl->word2 = le32_to_cpu(sgl->word2); |
da0436e9 JS |
3296 | if ((num_bde + 1) == nseg) |
3297 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
3298 | else | |
3299 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
3300 | bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); | |
f9bb2da1 | 3301 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA); |
da0436e9 | 3302 | sgl->word2 = cpu_to_le32(sgl->word2); |
28baac74 | 3303 | sgl->sge_len = cpu_to_le32(dma_len); |
da0436e9 JS |
3304 | dma_offset += dma_len; |
3305 | sgl++; | |
3306 | } | |
fedd3b7b JS |
3307 | /* setup the performance hint (first data BDE) if enabled */ |
3308 | if (phba->sli3_options & LPFC_SLI4_PERFH_ENABLED) { | |
3309 | bde = (struct ulp_bde64 *) | |
3310 | &(iocb_cmd->unsli3.sli3Words[5]); | |
3311 | bde->addrLow = first_data_sgl->addr_lo; | |
3312 | bde->addrHigh = first_data_sgl->addr_hi; | |
3313 | bde->tus.f.bdeSize = | |
3314 | le32_to_cpu(first_data_sgl->sge_len); | |
3315 | bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
3316 | bde->tus.w = cpu_to_le32(bde->tus.w); | |
3317 | } | |
da0436e9 JS |
3318 | } else { |
3319 | sgl += 1; | |
3320 | /* clear the last flag in the fcp_rsp map entry */ | |
3321 | sgl->word2 = le32_to_cpu(sgl->word2); | |
3322 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
3323 | sgl->word2 = cpu_to_le32(sgl->word2); | |
3324 | } | |
3325 | ||
3326 | /* | |
3327 | * Finish initializing those IOCB fields that are dependent on the | |
3328 | * scsi_cmnd request_buffer. Note that for SLI-2 the bdeSize is | |
3329 | * explicitly reinitialized. | |
3330 | * all iocb memory resources are reused. | |
3331 | */ | |
3332 | fcp_cmnd->fcpDl = cpu_to_be32(scsi_bufflen(scsi_cmnd)); | |
3333 | ||
3334 | /* | |
3335 | * Due to difference in data length between DIF/non-DIF paths, | |
3336 | * we need to set word 4 of IOCB here | |
3337 | */ | |
3338 | iocb_cmd->un.fcpi.fcpi_parm = scsi_bufflen(scsi_cmnd); | |
1ba981fd JS |
3339 | |
3340 | /* | |
3341 | * If the OAS driver feature is enabled and the lun is enabled for | |
3342 | * OAS, set the oas iocb related flags. | |
3343 | */ | |
f38fa0bb | 3344 | if ((phba->cfg_fof) && ((struct lpfc_device_data *) |
c92c841c | 3345 | scsi_cmnd->device->hostdata)->oas_enabled) { |
9bd2bff5 | 3346 | lpfc_cmd->cur_iocbq.iocb_flag |= (LPFC_IO_OAS | LPFC_IO_FOF); |
c92c841c JS |
3347 | lpfc_cmd->cur_iocbq.priority = ((struct lpfc_device_data *) |
3348 | scsi_cmnd->device->hostdata)->priority; | |
3349 | } | |
da0436e9 JS |
3350 | return 0; |
3351 | } | |
3352 | ||
acd6859b JS |
3353 | /** |
3354 | * lpfc_bg_scsi_prep_dma_buf_s4 - DMA mapping for scsi buffer to SLI4 IF spec | |
3355 | * @phba: The Hba for which this call is being executed. | |
3356 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
3357 | * | |
3358 | * This is the protection/DIF aware version of | |
3359 | * lpfc_scsi_prep_dma_buf(). It may be a good idea to combine the | |
3360 | * two functions eventually, but for now, it's here | |
3361 | **/ | |
3362 | static int | |
3363 | lpfc_bg_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, | |
3364 | struct lpfc_scsi_buf *lpfc_cmd) | |
3365 | { | |
3366 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
3367 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
3368 | struct sli4_sge *sgl = (struct sli4_sge *)(lpfc_cmd->fcp_bpl); | |
3369 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; | |
96f7077f | 3370 | uint32_t num_sge = 0; |
acd6859b JS |
3371 | int datasegcnt, protsegcnt, datadir = scsi_cmnd->sc_data_direction; |
3372 | int prot_group_type = 0; | |
3373 | int fcpdl; | |
3374 | ||
3375 | /* | |
3376 | * Start the lpfc command prep by bumping the sgl beyond fcp_cmnd | |
96f7077f | 3377 | * fcp_rsp regions to the first data sge entry |
acd6859b JS |
3378 | */ |
3379 | if (scsi_sg_count(scsi_cmnd)) { | |
3380 | /* | |
3381 | * The driver stores the segment count returned from pci_map_sg | |
3382 | * because this a count of dma-mappings used to map the use_sg | |
3383 | * pages. They are not guaranteed to be the same for those | |
3384 | * architectures that implement an IOMMU. | |
3385 | */ | |
3386 | datasegcnt = dma_map_sg(&phba->pcidev->dev, | |
3387 | scsi_sglist(scsi_cmnd), | |
3388 | scsi_sg_count(scsi_cmnd), datadir); | |
3389 | if (unlikely(!datasegcnt)) | |
3390 | return 1; | |
3391 | ||
3392 | sgl += 1; | |
3393 | /* clear the last flag in the fcp_rsp map entry */ | |
3394 | sgl->word2 = le32_to_cpu(sgl->word2); | |
3395 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
3396 | sgl->word2 = cpu_to_le32(sgl->word2); | |
3397 | ||
3398 | sgl += 1; | |
3399 | lpfc_cmd->seg_cnt = datasegcnt; | |
96f7077f JS |
3400 | |
3401 | /* First check if data segment count from SCSI Layer is good */ | |
3402 | if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) | |
3403 | goto err; | |
acd6859b JS |
3404 | |
3405 | prot_group_type = lpfc_prot_group_type(phba, scsi_cmnd); | |
3406 | ||
3407 | switch (prot_group_type) { | |
3408 | case LPFC_PG_TYPE_NO_DIF: | |
96f7077f JS |
3409 | /* Here we need to add a DISEED to the count */ |
3410 | if ((lpfc_cmd->seg_cnt + 1) > phba->cfg_total_seg_cnt) | |
3411 | goto err; | |
3412 | ||
3413 | num_sge = lpfc_bg_setup_sgl(phba, scsi_cmnd, sgl, | |
acd6859b | 3414 | datasegcnt); |
96f7077f | 3415 | |
acd6859b | 3416 | /* we should have 2 or more entries in buffer list */ |
96f7077f | 3417 | if (num_sge < 2) |
acd6859b JS |
3418 | goto err; |
3419 | break; | |
96f7077f JS |
3420 | |
3421 | case LPFC_PG_TYPE_DIF_BUF: | |
acd6859b JS |
3422 | /* |
3423 | * This type indicates that protection buffers are | |
3424 | * passed to the driver, so that needs to be prepared | |
3425 | * for DMA | |
3426 | */ | |
3427 | protsegcnt = dma_map_sg(&phba->pcidev->dev, | |
3428 | scsi_prot_sglist(scsi_cmnd), | |
3429 | scsi_prot_sg_count(scsi_cmnd), datadir); | |
3430 | if (unlikely(!protsegcnt)) { | |
3431 | scsi_dma_unmap(scsi_cmnd); | |
3432 | return 1; | |
3433 | } | |
3434 | ||
3435 | lpfc_cmd->prot_seg_cnt = protsegcnt; | |
96f7077f JS |
3436 | /* |
3437 | * There is a minimun of 3 SGEs used for every | |
3438 | * protection data segment. | |
3439 | */ | |
3440 | if ((lpfc_cmd->prot_seg_cnt * 3) > | |
3441 | (phba->cfg_total_seg_cnt - 2)) | |
3442 | goto err; | |
acd6859b | 3443 | |
96f7077f | 3444 | num_sge = lpfc_bg_setup_sgl_prot(phba, scsi_cmnd, sgl, |
acd6859b | 3445 | datasegcnt, protsegcnt); |
96f7077f | 3446 | |
acd6859b | 3447 | /* we should have 3 or more entries in buffer list */ |
96f7077f JS |
3448 | if ((num_sge < 3) || |
3449 | (num_sge > phba->cfg_total_seg_cnt)) | |
acd6859b JS |
3450 | goto err; |
3451 | break; | |
96f7077f | 3452 | |
acd6859b JS |
3453 | case LPFC_PG_TYPE_INVALID: |
3454 | default: | |
96f7077f JS |
3455 | scsi_dma_unmap(scsi_cmnd); |
3456 | lpfc_cmd->seg_cnt = 0; | |
3457 | ||
acd6859b JS |
3458 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, |
3459 | "9083 Unexpected protection group %i\n", | |
3460 | prot_group_type); | |
3461 | return 1; | |
3462 | } | |
3463 | } | |
3464 | ||
8012cc38 JS |
3465 | switch (scsi_get_prot_op(scsi_cmnd)) { |
3466 | case SCSI_PROT_WRITE_STRIP: | |
3467 | case SCSI_PROT_READ_STRIP: | |
3468 | lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_IO_DIF_STRIP; | |
3469 | break; | |
3470 | case SCSI_PROT_WRITE_INSERT: | |
3471 | case SCSI_PROT_READ_INSERT: | |
3472 | lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_IO_DIF_INSERT; | |
3473 | break; | |
3474 | case SCSI_PROT_WRITE_PASS: | |
3475 | case SCSI_PROT_READ_PASS: | |
3476 | lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_IO_DIF_PASS; | |
3477 | break; | |
3478 | } | |
3479 | ||
acd6859b | 3480 | fcpdl = lpfc_bg_scsi_adjust_dl(phba, lpfc_cmd); |
acd6859b JS |
3481 | fcp_cmnd->fcpDl = be32_to_cpu(fcpdl); |
3482 | ||
3483 | /* | |
3484 | * Due to difference in data length between DIF/non-DIF paths, | |
3485 | * we need to set word 4 of IOCB here | |
3486 | */ | |
3487 | iocb_cmd->un.fcpi.fcpi_parm = fcpdl; | |
acd6859b | 3488 | |
9bd2bff5 JS |
3489 | /* |
3490 | * If the OAS driver feature is enabled and the lun is enabled for | |
3491 | * OAS, set the oas iocb related flags. | |
3492 | */ | |
3493 | if ((phba->cfg_fof) && ((struct lpfc_device_data *) | |
3494 | scsi_cmnd->device->hostdata)->oas_enabled) | |
3495 | lpfc_cmd->cur_iocbq.iocb_flag |= (LPFC_IO_OAS | LPFC_IO_FOF); | |
3496 | ||
acd6859b JS |
3497 | return 0; |
3498 | err: | |
96f7077f JS |
3499 | if (lpfc_cmd->seg_cnt) |
3500 | scsi_dma_unmap(scsi_cmnd); | |
3501 | if (lpfc_cmd->prot_seg_cnt) | |
3502 | dma_unmap_sg(&phba->pcidev->dev, scsi_prot_sglist(scsi_cmnd), | |
3503 | scsi_prot_sg_count(scsi_cmnd), | |
3504 | scsi_cmnd->sc_data_direction); | |
3505 | ||
acd6859b | 3506 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, |
96f7077f JS |
3507 | "9084 Cannot setup S/G List for HBA" |
3508 | "IO segs %d/%d SGL %d SCSI %d: %d %d\n", | |
3509 | lpfc_cmd->seg_cnt, lpfc_cmd->prot_seg_cnt, | |
3510 | phba->cfg_total_seg_cnt, phba->cfg_sg_seg_cnt, | |
3511 | prot_group_type, num_sge); | |
3512 | ||
3513 | lpfc_cmd->seg_cnt = 0; | |
3514 | lpfc_cmd->prot_seg_cnt = 0; | |
acd6859b JS |
3515 | return 1; |
3516 | } | |
3517 | ||
3772a991 JS |
3518 | /** |
3519 | * lpfc_scsi_prep_dma_buf - Wrapper function for DMA mapping of scsi buffer | |
3520 | * @phba: The Hba for which this call is being executed. | |
3521 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
3522 | * | |
3523 | * This routine wraps the actual DMA mapping function pointer from the | |
3524 | * lpfc_hba struct. | |
3525 | * | |
3526 | * Return codes: | |
6c8eea54 JS |
3527 | * 1 - Error |
3528 | * 0 - Success | |
3772a991 JS |
3529 | **/ |
3530 | static inline int | |
3531 | lpfc_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) | |
3532 | { | |
3533 | return phba->lpfc_scsi_prep_dma_buf(phba, lpfc_cmd); | |
3534 | } | |
3535 | ||
acd6859b JS |
3536 | /** |
3537 | * lpfc_bg_scsi_prep_dma_buf - Wrapper function for DMA mapping of scsi buffer | |
3538 | * using BlockGuard. | |
3539 | * @phba: The Hba for which this call is being executed. | |
3540 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
3541 | * | |
3542 | * This routine wraps the actual DMA mapping function pointer from the | |
3543 | * lpfc_hba struct. | |
3544 | * | |
3545 | * Return codes: | |
3546 | * 1 - Error | |
3547 | * 0 - Success | |
3548 | **/ | |
3549 | static inline int | |
3550 | lpfc_bg_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) | |
3551 | { | |
3552 | return phba->lpfc_bg_scsi_prep_dma_buf(phba, lpfc_cmd); | |
3553 | } | |
3554 | ||
ea2151b4 | 3555 | /** |
3621a710 | 3556 | * lpfc_send_scsi_error_event - Posts an event when there is SCSI error |
ea2151b4 JS |
3557 | * @phba: Pointer to hba context object. |
3558 | * @vport: Pointer to vport object. | |
3559 | * @lpfc_cmd: Pointer to lpfc scsi command which reported the error. | |
3560 | * @rsp_iocb: Pointer to response iocb object which reported error. | |
3561 | * | |
3562 | * This function posts an event when there is a SCSI command reporting | |
3563 | * error from the scsi device. | |
3564 | **/ | |
3565 | static void | |
3566 | lpfc_send_scsi_error_event(struct lpfc_hba *phba, struct lpfc_vport *vport, | |
3567 | struct lpfc_scsi_buf *lpfc_cmd, struct lpfc_iocbq *rsp_iocb) { | |
3568 | struct scsi_cmnd *cmnd = lpfc_cmd->pCmd; | |
3569 | struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp; | |
3570 | uint32_t resp_info = fcprsp->rspStatus2; | |
3571 | uint32_t scsi_status = fcprsp->rspStatus3; | |
3572 | uint32_t fcpi_parm = rsp_iocb->iocb.un.fcpi.fcpi_parm; | |
3573 | struct lpfc_fast_path_event *fast_path_evt = NULL; | |
3574 | struct lpfc_nodelist *pnode = lpfc_cmd->rdata->pnode; | |
3575 | unsigned long flags; | |
3576 | ||
5989b8d4 JS |
3577 | if (!pnode || !NLP_CHK_NODE_ACT(pnode)) |
3578 | return; | |
3579 | ||
ea2151b4 JS |
3580 | /* If there is queuefull or busy condition send a scsi event */ |
3581 | if ((cmnd->result == SAM_STAT_TASK_SET_FULL) || | |
3582 | (cmnd->result == SAM_STAT_BUSY)) { | |
3583 | fast_path_evt = lpfc_alloc_fast_evt(phba); | |
3584 | if (!fast_path_evt) | |
3585 | return; | |
3586 | fast_path_evt->un.scsi_evt.event_type = | |
3587 | FC_REG_SCSI_EVENT; | |
3588 | fast_path_evt->un.scsi_evt.subcategory = | |
3589 | (cmnd->result == SAM_STAT_TASK_SET_FULL) ? | |
3590 | LPFC_EVENT_QFULL : LPFC_EVENT_DEVBSY; | |
3591 | fast_path_evt->un.scsi_evt.lun = cmnd->device->lun; | |
3592 | memcpy(&fast_path_evt->un.scsi_evt.wwpn, | |
3593 | &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
3594 | memcpy(&fast_path_evt->un.scsi_evt.wwnn, | |
3595 | &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
3596 | } else if ((resp_info & SNS_LEN_VALID) && fcprsp->rspSnsLen && | |
3597 | ((cmnd->cmnd[0] == READ_10) || (cmnd->cmnd[0] == WRITE_10))) { | |
3598 | fast_path_evt = lpfc_alloc_fast_evt(phba); | |
3599 | if (!fast_path_evt) | |
3600 | return; | |
3601 | fast_path_evt->un.check_cond_evt.scsi_event.event_type = | |
3602 | FC_REG_SCSI_EVENT; | |
3603 | fast_path_evt->un.check_cond_evt.scsi_event.subcategory = | |
3604 | LPFC_EVENT_CHECK_COND; | |
3605 | fast_path_evt->un.check_cond_evt.scsi_event.lun = | |
3606 | cmnd->device->lun; | |
3607 | memcpy(&fast_path_evt->un.check_cond_evt.scsi_event.wwpn, | |
3608 | &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
3609 | memcpy(&fast_path_evt->un.check_cond_evt.scsi_event.wwnn, | |
3610 | &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
3611 | fast_path_evt->un.check_cond_evt.sense_key = | |
3612 | cmnd->sense_buffer[2] & 0xf; | |
3613 | fast_path_evt->un.check_cond_evt.asc = cmnd->sense_buffer[12]; | |
3614 | fast_path_evt->un.check_cond_evt.ascq = cmnd->sense_buffer[13]; | |
3615 | } else if ((cmnd->sc_data_direction == DMA_FROM_DEVICE) && | |
3616 | fcpi_parm && | |
3617 | ((be32_to_cpu(fcprsp->rspResId) != fcpi_parm) || | |
3618 | ((scsi_status == SAM_STAT_GOOD) && | |
3619 | !(resp_info & (RESID_UNDER | RESID_OVER))))) { | |
3620 | /* | |
3621 | * If status is good or resid does not match with fcp_param and | |
3622 | * there is valid fcpi_parm, then there is a read_check error | |
3623 | */ | |
3624 | fast_path_evt = lpfc_alloc_fast_evt(phba); | |
3625 | if (!fast_path_evt) | |
3626 | return; | |
3627 | fast_path_evt->un.read_check_error.header.event_type = | |
3628 | FC_REG_FABRIC_EVENT; | |
3629 | fast_path_evt->un.read_check_error.header.subcategory = | |
3630 | LPFC_EVENT_FCPRDCHKERR; | |
3631 | memcpy(&fast_path_evt->un.read_check_error.header.wwpn, | |
3632 | &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
3633 | memcpy(&fast_path_evt->un.read_check_error.header.wwnn, | |
3634 | &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
3635 | fast_path_evt->un.read_check_error.lun = cmnd->device->lun; | |
3636 | fast_path_evt->un.read_check_error.opcode = cmnd->cmnd[0]; | |
3637 | fast_path_evt->un.read_check_error.fcpiparam = | |
3638 | fcpi_parm; | |
3639 | } else | |
3640 | return; | |
3641 | ||
3642 | fast_path_evt->vport = vport; | |
3643 | spin_lock_irqsave(&phba->hbalock, flags); | |
3644 | list_add_tail(&fast_path_evt->work_evt.evt_listp, &phba->work_list); | |
3645 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
3646 | lpfc_worker_wake_up(phba); | |
3647 | return; | |
3648 | } | |
9bad7671 JS |
3649 | |
3650 | /** | |
f1126688 | 3651 | * lpfc_scsi_unprep_dma_buf - Un-map DMA mapping of SG-list for dev |
3772a991 | 3652 | * @phba: The HBA for which this call is being executed. |
9bad7671 JS |
3653 | * @psb: The scsi buffer which is going to be un-mapped. |
3654 | * | |
3655 | * This routine does DMA un-mapping of scatter gather list of scsi command | |
3772a991 | 3656 | * field of @lpfc_cmd for device with SLI-3 interface spec. |
9bad7671 | 3657 | **/ |
bcf4dbfa | 3658 | static void |
f1126688 | 3659 | lpfc_scsi_unprep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) |
bcf4dbfa JS |
3660 | { |
3661 | /* | |
3662 | * There are only two special cases to consider. (1) the scsi command | |
3663 | * requested scatter-gather usage or (2) the scsi command allocated | |
3664 | * a request buffer, but did not request use_sg. There is a third | |
3665 | * case, but it does not require resource deallocation. | |
3666 | */ | |
a0b4f78f FT |
3667 | if (psb->seg_cnt > 0) |
3668 | scsi_dma_unmap(psb->pCmd); | |
e2a0a9d6 JS |
3669 | if (psb->prot_seg_cnt > 0) |
3670 | dma_unmap_sg(&phba->pcidev->dev, scsi_prot_sglist(psb->pCmd), | |
3671 | scsi_prot_sg_count(psb->pCmd), | |
3672 | psb->pCmd->sc_data_direction); | |
bcf4dbfa JS |
3673 | } |
3674 | ||
9bad7671 | 3675 | /** |
3621a710 | 3676 | * lpfc_handler_fcp_err - FCP response handler |
9bad7671 JS |
3677 | * @vport: The virtual port for which this call is being executed. |
3678 | * @lpfc_cmd: Pointer to lpfc_scsi_buf data structure. | |
3679 | * @rsp_iocb: The response IOCB which contains FCP error. | |
3680 | * | |
3681 | * This routine is called to process response IOCB with status field | |
3682 | * IOSTAT_FCP_RSP_ERROR. This routine sets result field of scsi command | |
3683 | * based upon SCSI and FCP error. | |
3684 | **/ | |
dea3101e | 3685 | static void |
2e0fef85 JS |
3686 | lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, |
3687 | struct lpfc_iocbq *rsp_iocb) | |
dea3101e | 3688 | { |
5afab6bb | 3689 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 3690 | struct scsi_cmnd *cmnd = lpfc_cmd->pCmd; |
3691 | struct fcp_cmnd *fcpcmd = lpfc_cmd->fcp_cmnd; | |
3692 | struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp; | |
7054a606 | 3693 | uint32_t fcpi_parm = rsp_iocb->iocb.un.fcpi.fcpi_parm; |
dea3101e | 3694 | uint32_t resp_info = fcprsp->rspStatus2; |
3695 | uint32_t scsi_status = fcprsp->rspStatus3; | |
c7743956 | 3696 | uint32_t *lp; |
dea3101e | 3697 | uint32_t host_status = DID_OK; |
3698 | uint32_t rsplen = 0; | |
5afab6bb | 3699 | uint32_t fcpDl; |
c7743956 | 3700 | uint32_t logit = LOG_FCP | LOG_FCP_ERROR; |
dea3101e | 3701 | |
ea2151b4 | 3702 | |
dea3101e | 3703 | /* |
3704 | * If this is a task management command, there is no | |
3705 | * scsi packet associated with this lpfc_cmd. The driver | |
3706 | * consumes it. | |
3707 | */ | |
3708 | if (fcpcmd->fcpCntl2) { | |
3709 | scsi_status = 0; | |
3710 | goto out; | |
3711 | } | |
3712 | ||
6a9c52cf JS |
3713 | if (resp_info & RSP_LEN_VALID) { |
3714 | rsplen = be32_to_cpu(fcprsp->rspRspLen); | |
e40a02c1 | 3715 | if (rsplen != 0 && rsplen != 4 && rsplen != 8) { |
6a9c52cf JS |
3716 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
3717 | "2719 Invalid response length: " | |
9cb78c16 | 3718 | "tgt x%x lun x%llx cmnd x%x rsplen x%x\n", |
6a9c52cf JS |
3719 | cmnd->device->id, |
3720 | cmnd->device->lun, cmnd->cmnd[0], | |
3721 | rsplen); | |
3722 | host_status = DID_ERROR; | |
3723 | goto out; | |
3724 | } | |
e40a02c1 JS |
3725 | if (fcprsp->rspInfo3 != RSP_NO_FAILURE) { |
3726 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
3727 | "2757 Protocol failure detected during " | |
3728 | "processing of FCP I/O op: " | |
9cb78c16 | 3729 | "tgt x%x lun x%llx cmnd x%x rspInfo3 x%x\n", |
e40a02c1 JS |
3730 | cmnd->device->id, |
3731 | cmnd->device->lun, cmnd->cmnd[0], | |
3732 | fcprsp->rspInfo3); | |
3733 | host_status = DID_ERROR; | |
3734 | goto out; | |
3735 | } | |
6a9c52cf JS |
3736 | } |
3737 | ||
c7743956 JS |
3738 | if ((resp_info & SNS_LEN_VALID) && fcprsp->rspSnsLen) { |
3739 | uint32_t snslen = be32_to_cpu(fcprsp->rspSnsLen); | |
3740 | if (snslen > SCSI_SENSE_BUFFERSIZE) | |
3741 | snslen = SCSI_SENSE_BUFFERSIZE; | |
3742 | ||
3743 | if (resp_info & RSP_LEN_VALID) | |
3744 | rsplen = be32_to_cpu(fcprsp->rspRspLen); | |
3745 | memcpy(cmnd->sense_buffer, &fcprsp->rspInfo0 + rsplen, snslen); | |
3746 | } | |
3747 | lp = (uint32_t *)cmnd->sense_buffer; | |
3748 | ||
aa1c7ee7 JS |
3749 | /* special handling for under run conditions */ |
3750 | if (!scsi_status && (resp_info & RESID_UNDER)) { | |
3751 | /* don't log under runs if fcp set... */ | |
3752 | if (vport->cfg_log_verbose & LOG_FCP) | |
3753 | logit = LOG_FCP_ERROR; | |
3754 | /* unless operator says so */ | |
3755 | if (vport->cfg_log_verbose & LOG_FCP_UNDER) | |
3756 | logit = LOG_FCP_UNDER; | |
3757 | } | |
c7743956 | 3758 | |
e8b62011 | 3759 | lpfc_printf_vlog(vport, KERN_WARNING, logit, |
e2a0a9d6 | 3760 | "9024 FCP command x%x failed: x%x SNS x%x x%x " |
e8b62011 JS |
3761 | "Data: x%x x%x x%x x%x x%x\n", |
3762 | cmnd->cmnd[0], scsi_status, | |
3763 | be32_to_cpu(*lp), be32_to_cpu(*(lp + 3)), resp_info, | |
3764 | be32_to_cpu(fcprsp->rspResId), | |
3765 | be32_to_cpu(fcprsp->rspSnsLen), | |
3766 | be32_to_cpu(fcprsp->rspRspLen), | |
3767 | fcprsp->rspInfo3); | |
dea3101e | 3768 | |
a0b4f78f | 3769 | scsi_set_resid(cmnd, 0); |
5afab6bb | 3770 | fcpDl = be32_to_cpu(fcpcmd->fcpDl); |
dea3101e | 3771 | if (resp_info & RESID_UNDER) { |
a0b4f78f | 3772 | scsi_set_resid(cmnd, be32_to_cpu(fcprsp->rspResId)); |
dea3101e | 3773 | |
73d91e50 | 3774 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP_UNDER, |
45634a86 | 3775 | "9025 FCP Underrun, expected %d, " |
e8b62011 | 3776 | "residual %d Data: x%x x%x x%x\n", |
5afab6bb | 3777 | fcpDl, |
e8b62011 JS |
3778 | scsi_get_resid(cmnd), fcpi_parm, cmnd->cmnd[0], |
3779 | cmnd->underflow); | |
dea3101e | 3780 | |
7054a606 | 3781 | /* |
45634a86 | 3782 | * If there is an under run, check if under run reported by |
7054a606 JS |
3783 | * storage array is same as the under run reported by HBA. |
3784 | * If this is not same, there is a dropped frame. | |
3785 | */ | |
45634a86 | 3786 | if (fcpi_parm && (scsi_get_resid(cmnd) != fcpi_parm)) { |
e8b62011 JS |
3787 | lpfc_printf_vlog(vport, KERN_WARNING, |
3788 | LOG_FCP | LOG_FCP_ERROR, | |
e2a0a9d6 | 3789 | "9026 FCP Read Check Error " |
e8b62011 | 3790 | "and Underrun Data: x%x x%x x%x x%x\n", |
5afab6bb | 3791 | fcpDl, |
e8b62011 JS |
3792 | scsi_get_resid(cmnd), fcpi_parm, |
3793 | cmnd->cmnd[0]); | |
a0b4f78f | 3794 | scsi_set_resid(cmnd, scsi_bufflen(cmnd)); |
7054a606 JS |
3795 | host_status = DID_ERROR; |
3796 | } | |
dea3101e | 3797 | /* |
3798 | * The cmnd->underflow is the minimum number of bytes that must | |
25985edc | 3799 | * be transferred for this command. Provided a sense condition |
dea3101e | 3800 | * is not present, make sure the actual amount transferred is at |
3801 | * least the underflow value or fail. | |
3802 | */ | |
3803 | if (!(resp_info & SNS_LEN_VALID) && | |
3804 | (scsi_status == SAM_STAT_GOOD) && | |
a0b4f78f FT |
3805 | (scsi_bufflen(cmnd) - scsi_get_resid(cmnd) |
3806 | < cmnd->underflow)) { | |
e8b62011 | 3807 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, |
e2a0a9d6 | 3808 | "9027 FCP command x%x residual " |
e8b62011 JS |
3809 | "underrun converted to error " |
3810 | "Data: x%x x%x x%x\n", | |
66dbfbe6 | 3811 | cmnd->cmnd[0], scsi_bufflen(cmnd), |
e8b62011 | 3812 | scsi_get_resid(cmnd), cmnd->underflow); |
dea3101e | 3813 | host_status = DID_ERROR; |
3814 | } | |
3815 | } else if (resp_info & RESID_OVER) { | |
e8b62011 | 3816 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
e2a0a9d6 | 3817 | "9028 FCP command x%x residual overrun error. " |
e4e74273 | 3818 | "Data: x%x x%x\n", cmnd->cmnd[0], |
e8b62011 | 3819 | scsi_bufflen(cmnd), scsi_get_resid(cmnd)); |
dea3101e | 3820 | host_status = DID_ERROR; |
3821 | ||
3822 | /* | |
3823 | * Check SLI validation that all the transfer was actually done | |
26373d23 | 3824 | * (fcpi_parm should be zero). Apply check only to reads. |
dea3101e | 3825 | */ |
5afab6bb | 3826 | } else if (fcpi_parm) { |
e8b62011 | 3827 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP | LOG_FCP_ERROR, |
5afab6bb | 3828 | "9029 FCP %s Check Error xri x%x Data: " |
eee8877e | 3829 | "x%x x%x x%x x%x x%x\n", |
5afab6bb JS |
3830 | ((cmnd->sc_data_direction == DMA_FROM_DEVICE) ? |
3831 | "Read" : "Write"), | |
3832 | ((phba->sli_rev == LPFC_SLI_REV4) ? | |
3833 | lpfc_cmd->cur_iocbq.sli4_xritag : | |
3834 | rsp_iocb->iocb.ulpContext), | |
3835 | fcpDl, be32_to_cpu(fcprsp->rspResId), | |
eee8877e | 3836 | fcpi_parm, cmnd->cmnd[0], scsi_status); |
5afab6bb JS |
3837 | |
3838 | /* There is some issue with the LPe12000 that causes it | |
3839 | * to miscalculate the fcpi_parm and falsely trip this | |
3840 | * recovery logic. Detect this case and don't error when true. | |
3841 | */ | |
3842 | if (fcpi_parm > fcpDl) | |
3843 | goto out; | |
3844 | ||
eee8877e JS |
3845 | switch (scsi_status) { |
3846 | case SAM_STAT_GOOD: | |
3847 | case SAM_STAT_CHECK_CONDITION: | |
3848 | /* Fabric dropped a data frame. Fail any successful | |
3849 | * command in which we detected dropped frames. | |
3850 | * A status of good or some check conditions could | |
3851 | * be considered a successful command. | |
3852 | */ | |
3853 | host_status = DID_ERROR; | |
3854 | break; | |
3855 | } | |
a0b4f78f | 3856 | scsi_set_resid(cmnd, scsi_bufflen(cmnd)); |
dea3101e | 3857 | } |
3858 | ||
3859 | out: | |
3860 | cmnd->result = ScsiResult(host_status, scsi_status); | |
ea2151b4 | 3861 | lpfc_send_scsi_error_event(vport->phba, vport, lpfc_cmd, rsp_iocb); |
dea3101e | 3862 | } |
3863 | ||
8b0dff14 JS |
3864 | /** |
3865 | * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution | |
3866 | * @phba: Pointer to HBA context object. | |
3867 | * | |
3868 | * This routine performs a roundrobin SCSI command to SLI4 FCP WQ index | |
3869 | * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock | |
3870 | * held. | |
3871 | * If scsi-mq is enabled, get the default block layer mapping of software queues | |
3872 | * to hardware queues. This information is saved in request tag. | |
3873 | * | |
3874 | * Return: index into SLI4 fast-path FCP queue index. | |
3875 | **/ | |
3876 | int lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba, | |
3877 | struct lpfc_scsi_buf *lpfc_cmd) | |
3878 | { | |
3879 | struct scsi_cmnd *cmnd = lpfc_cmd->pCmd; | |
3880 | struct lpfc_vector_map_info *cpup; | |
3881 | int chann, cpu; | |
3882 | uint32_t tag; | |
3883 | uint16_t hwq; | |
3884 | ||
05a05872 | 3885 | if (cmnd && shost_use_blk_mq(cmnd->device->host)) { |
8b0dff14 JS |
3886 | tag = blk_mq_unique_tag(cmnd->request); |
3887 | hwq = blk_mq_unique_tag_to_hwq(tag); | |
3888 | ||
3889 | return hwq; | |
3890 | } | |
3891 | ||
3892 | if (phba->cfg_fcp_io_sched == LPFC_FCP_SCHED_BY_CPU | |
3893 | && phba->cfg_fcp_io_channel > 1) { | |
3894 | cpu = smp_processor_id(); | |
3895 | if (cpu < phba->sli4_hba.num_present_cpu) { | |
3896 | cpup = phba->sli4_hba.cpu_map; | |
3897 | cpup += cpu; | |
3898 | return cpup->channel_id; | |
3899 | } | |
3900 | } | |
3901 | chann = atomic_add_return(1, &phba->fcp_qidx); | |
2ea259ee | 3902 | chann = chann % phba->cfg_fcp_io_channel; |
8b0dff14 JS |
3903 | return chann; |
3904 | } | |
3905 | ||
3906 | ||
9bad7671 | 3907 | /** |
3621a710 | 3908 | * lpfc_scsi_cmd_iocb_cmpl - Scsi cmnd IOCB completion routine |
9bad7671 JS |
3909 | * @phba: The Hba for which this call is being executed. |
3910 | * @pIocbIn: The command IOCBQ for the scsi cmnd. | |
3772a991 | 3911 | * @pIocbOut: The response IOCBQ for the scsi cmnd. |
9bad7671 JS |
3912 | * |
3913 | * This routine assigns scsi command result by looking into response IOCB | |
3914 | * status field appropriately. This routine handles QUEUE FULL condition as | |
3915 | * well by ramping down device queue depth. | |
3916 | **/ | |
dea3101e | 3917 | static void |
3918 | lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn, | |
3919 | struct lpfc_iocbq *pIocbOut) | |
3920 | { | |
3921 | struct lpfc_scsi_buf *lpfc_cmd = | |
3922 | (struct lpfc_scsi_buf *) pIocbIn->context1; | |
2e0fef85 | 3923 | struct lpfc_vport *vport = pIocbIn->vport; |
dea3101e | 3924 | struct lpfc_rport_data *rdata = lpfc_cmd->rdata; |
3925 | struct lpfc_nodelist *pnode = rdata->pnode; | |
75baf696 | 3926 | struct scsi_cmnd *cmd; |
fa61a54e | 3927 | unsigned long flags; |
ea2151b4 | 3928 | struct lpfc_fast_path_event *fast_path_evt; |
75baf696 | 3929 | struct Scsi_Host *shost; |
73d91e50 | 3930 | uint32_t logit = LOG_FCP; |
dea3101e | 3931 | |
2cee7808 | 3932 | atomic_inc(&phba->fc4ScsiIoCmpls); |
895427bd | 3933 | |
75baf696 | 3934 | /* Sanity check on return of outstanding command */ |
75baf696 | 3935 | cmd = lpfc_cmd->pCmd; |
c90261dc JS |
3936 | if (!cmd) |
3937 | return; | |
75baf696 JS |
3938 | shost = cmd->device->host; |
3939 | ||
e3d2b802 | 3940 | lpfc_cmd->result = (pIocbOut->iocb.un.ulpWord[4] & IOERR_PARAM_MASK); |
dea3101e | 3941 | lpfc_cmd->status = pIocbOut->iocb.ulpStatus; |
341af102 JS |
3942 | /* pick up SLI4 exhange busy status from HBA */ |
3943 | lpfc_cmd->exch_busy = pIocbOut->iocb_flag & LPFC_EXCHANGE_BUSY; | |
3944 | ||
9a6b09c0 JS |
3945 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
3946 | if (lpfc_cmd->prot_data_type) { | |
3947 | struct scsi_dif_tuple *src = NULL; | |
3948 | ||
3949 | src = (struct scsi_dif_tuple *)lpfc_cmd->prot_data_segment; | |
3950 | /* | |
3951 | * Used to restore any changes to protection | |
3952 | * data for error injection. | |
3953 | */ | |
3954 | switch (lpfc_cmd->prot_data_type) { | |
3955 | case LPFC_INJERR_REFTAG: | |
3956 | src->ref_tag = | |
3957 | lpfc_cmd->prot_data; | |
3958 | break; | |
3959 | case LPFC_INJERR_APPTAG: | |
3960 | src->app_tag = | |
3961 | (uint16_t)lpfc_cmd->prot_data; | |
3962 | break; | |
3963 | case LPFC_INJERR_GUARD: | |
3964 | src->guard_tag = | |
3965 | (uint16_t)lpfc_cmd->prot_data; | |
3966 | break; | |
3967 | default: | |
3968 | break; | |
3969 | } | |
3970 | ||
3971 | lpfc_cmd->prot_data = 0; | |
3972 | lpfc_cmd->prot_data_type = 0; | |
3973 | lpfc_cmd->prot_data_segment = NULL; | |
3974 | } | |
3975 | #endif | |
2ea259ee | 3976 | |
109f6ed0 JS |
3977 | if (pnode && NLP_CHK_NODE_ACT(pnode)) |
3978 | atomic_dec(&pnode->cmd_pending); | |
dea3101e | 3979 | |
3980 | if (lpfc_cmd->status) { | |
3981 | if (lpfc_cmd->status == IOSTAT_LOCAL_REJECT && | |
3982 | (lpfc_cmd->result & IOERR_DRVR_MASK)) | |
3983 | lpfc_cmd->status = IOSTAT_DRIVER_REJECT; | |
3984 | else if (lpfc_cmd->status >= IOSTAT_CNT) | |
3985 | lpfc_cmd->status = IOSTAT_DEFAULT; | |
aa1c7ee7 JS |
3986 | if (lpfc_cmd->status == IOSTAT_FCP_RSP_ERROR && |
3987 | !lpfc_cmd->fcp_rsp->rspStatus3 && | |
3988 | (lpfc_cmd->fcp_rsp->rspStatus2 & RESID_UNDER) && | |
3989 | !(vport->cfg_log_verbose & LOG_FCP_UNDER)) | |
73d91e50 JS |
3990 | logit = 0; |
3991 | else | |
3992 | logit = LOG_FCP | LOG_FCP_UNDER; | |
3993 | lpfc_printf_vlog(vport, KERN_WARNING, logit, | |
9cb78c16 | 3994 | "9030 FCP cmd x%x failed <%d/%lld> " |
5a0d80fc JS |
3995 | "status: x%x result: x%x " |
3996 | "sid: x%x did: x%x oxid: x%x " | |
3997 | "Data: x%x x%x\n", | |
73d91e50 JS |
3998 | cmd->cmnd[0], |
3999 | cmd->device ? cmd->device->id : 0xffff, | |
4000 | cmd->device ? cmd->device->lun : 0xffff, | |
4001 | lpfc_cmd->status, lpfc_cmd->result, | |
3bf41ba9 JS |
4002 | vport->fc_myDID, |
4003 | (pnode) ? pnode->nlp_DID : 0, | |
5a0d80fc JS |
4004 | phba->sli_rev == LPFC_SLI_REV4 ? |
4005 | lpfc_cmd->cur_iocbq.sli4_xritag : 0xffff, | |
73d91e50 JS |
4006 | pIocbOut->iocb.ulpContext, |
4007 | lpfc_cmd->cur_iocbq.iocb.ulpIoTag); | |
dea3101e | 4008 | |
4009 | switch (lpfc_cmd->status) { | |
4010 | case IOSTAT_FCP_RSP_ERROR: | |
4011 | /* Call FCP RSP handler to determine result */ | |
2e0fef85 | 4012 | lpfc_handle_fcp_err(vport, lpfc_cmd, pIocbOut); |
dea3101e | 4013 | break; |
4014 | case IOSTAT_NPORT_BSY: | |
4015 | case IOSTAT_FABRIC_BSY: | |
0f1f53a7 | 4016 | cmd->result = ScsiResult(DID_TRANSPORT_DISRUPTED, 0); |
ea2151b4 JS |
4017 | fast_path_evt = lpfc_alloc_fast_evt(phba); |
4018 | if (!fast_path_evt) | |
4019 | break; | |
4020 | fast_path_evt->un.fabric_evt.event_type = | |
4021 | FC_REG_FABRIC_EVENT; | |
4022 | fast_path_evt->un.fabric_evt.subcategory = | |
4023 | (lpfc_cmd->status == IOSTAT_NPORT_BSY) ? | |
4024 | LPFC_EVENT_PORT_BUSY : LPFC_EVENT_FABRIC_BUSY; | |
4025 | if (pnode && NLP_CHK_NODE_ACT(pnode)) { | |
4026 | memcpy(&fast_path_evt->un.fabric_evt.wwpn, | |
4027 | &pnode->nlp_portname, | |
4028 | sizeof(struct lpfc_name)); | |
4029 | memcpy(&fast_path_evt->un.fabric_evt.wwnn, | |
4030 | &pnode->nlp_nodename, | |
4031 | sizeof(struct lpfc_name)); | |
4032 | } | |
4033 | fast_path_evt->vport = vport; | |
4034 | fast_path_evt->work_evt.evt = | |
4035 | LPFC_EVT_FASTPATH_MGMT_EVT; | |
4036 | spin_lock_irqsave(&phba->hbalock, flags); | |
4037 | list_add_tail(&fast_path_evt->work_evt.evt_listp, | |
4038 | &phba->work_list); | |
4039 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
4040 | lpfc_worker_wake_up(phba); | |
dea3101e | 4041 | break; |
92d7f7b0 | 4042 | case IOSTAT_LOCAL_REJECT: |
1151e3ec | 4043 | case IOSTAT_REMOTE_STOP: |
ab56dc2e JS |
4044 | if (lpfc_cmd->result == IOERR_ELXSEC_KEY_UNWRAP_ERROR || |
4045 | lpfc_cmd->result == | |
4046 | IOERR_ELXSEC_KEY_UNWRAP_COMPARE_ERROR || | |
4047 | lpfc_cmd->result == IOERR_ELXSEC_CRYPTO_ERROR || | |
4048 | lpfc_cmd->result == | |
4049 | IOERR_ELXSEC_CRYPTO_COMPARE_ERROR) { | |
4050 | cmd->result = ScsiResult(DID_NO_CONNECT, 0); | |
4051 | break; | |
4052 | } | |
d7c255b2 | 4053 | if (lpfc_cmd->result == IOERR_INVALID_RPI || |
92d7f7b0 | 4054 | lpfc_cmd->result == IOERR_NO_RESOURCES || |
b92938b4 JS |
4055 | lpfc_cmd->result == IOERR_ABORT_REQUESTED || |
4056 | lpfc_cmd->result == IOERR_SLER_CMD_RCV_FAILURE) { | |
92d7f7b0 | 4057 | cmd->result = ScsiResult(DID_REQUEUE, 0); |
58da1ffb | 4058 | break; |
e2a0a9d6 | 4059 | } |
e2a0a9d6 JS |
4060 | if ((lpfc_cmd->result == IOERR_RX_DMA_FAILED || |
4061 | lpfc_cmd->result == IOERR_TX_DMA_FAILED) && | |
4062 | pIocbOut->iocb.unsli3.sli3_bg.bgstat) { | |
4063 | if (scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) { | |
4064 | /* | |
4065 | * This is a response for a BG enabled | |
4066 | * cmd. Parse BG error | |
4067 | */ | |
4068 | lpfc_parse_bg_err(phba, lpfc_cmd, | |
4069 | pIocbOut); | |
4070 | break; | |
4071 | } else { | |
4072 | lpfc_printf_vlog(vport, KERN_WARNING, | |
4073 | LOG_BG, | |
4074 | "9031 non-zero BGSTAT " | |
6a9c52cf | 4075 | "on unprotected cmd\n"); |
e2a0a9d6 JS |
4076 | } |
4077 | } | |
1151e3ec JS |
4078 | if ((lpfc_cmd->status == IOSTAT_REMOTE_STOP) |
4079 | && (phba->sli_rev == LPFC_SLI_REV4) | |
4080 | && (pnode && NLP_CHK_NODE_ACT(pnode))) { | |
4081 | /* This IO was aborted by the target, we don't | |
4082 | * know the rxid and because we did not send the | |
4083 | * ABTS we cannot generate and RRQ. | |
4084 | */ | |
4085 | lpfc_set_rrq_active(phba, pnode, | |
ee0f4fe1 JS |
4086 | lpfc_cmd->cur_iocbq.sli4_lxritag, |
4087 | 0, 0); | |
1151e3ec | 4088 | } |
e2a0a9d6 | 4089 | /* else: fall through */ |
dea3101e | 4090 | default: |
4091 | cmd->result = ScsiResult(DID_ERROR, 0); | |
4092 | break; | |
4093 | } | |
4094 | ||
58da1ffb | 4095 | if (!pnode || !NLP_CHK_NODE_ACT(pnode) |
19a7b4ae | 4096 | || (pnode->nlp_state != NLP_STE_MAPPED_NODE)) |
0f1f53a7 JS |
4097 | cmd->result = ScsiResult(DID_TRANSPORT_DISRUPTED, |
4098 | SAM_STAT_BUSY); | |
ab56dc2e | 4099 | } else |
dea3101e | 4100 | cmd->result = ScsiResult(DID_OK, 0); |
dea3101e | 4101 | |
4102 | if (cmd->result || lpfc_cmd->fcp_rsp->rspSnsLen) { | |
4103 | uint32_t *lp = (uint32_t *)cmd->sense_buffer; | |
4104 | ||
e8b62011 | 4105 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, |
9cb78c16 | 4106 | "0710 Iodone <%d/%llu> cmd %p, error " |
e8b62011 JS |
4107 | "x%x SNS x%x x%x Data: x%x x%x\n", |
4108 | cmd->device->id, cmd->device->lun, cmd, | |
4109 | cmd->result, *lp, *(lp + 3), cmd->retries, | |
4110 | scsi_get_resid(cmd)); | |
dea3101e | 4111 | } |
4112 | ||
ea2151b4 | 4113 | lpfc_update_stats(phba, lpfc_cmd); |
977b5a0a JS |
4114 | if (vport->cfg_max_scsicmpl_time && |
4115 | time_after(jiffies, lpfc_cmd->start_time + | |
4116 | msecs_to_jiffies(vport->cfg_max_scsicmpl_time))) { | |
a257bf90 | 4117 | spin_lock_irqsave(shost->host_lock, flags); |
109f6ed0 JS |
4118 | if (pnode && NLP_CHK_NODE_ACT(pnode)) { |
4119 | if (pnode->cmd_qdepth > | |
4120 | atomic_read(&pnode->cmd_pending) && | |
4121 | (atomic_read(&pnode->cmd_pending) > | |
4122 | LPFC_MIN_TGT_QDEPTH) && | |
4123 | ((cmd->cmnd[0] == READ_10) || | |
4124 | (cmd->cmnd[0] == WRITE_10))) | |
4125 | pnode->cmd_qdepth = | |
4126 | atomic_read(&pnode->cmd_pending); | |
4127 | ||
4128 | pnode->last_change_time = jiffies; | |
4129 | } | |
a257bf90 | 4130 | spin_unlock_irqrestore(shost->host_lock, flags); |
109f6ed0 | 4131 | } else if (pnode && NLP_CHK_NODE_ACT(pnode)) { |
64bf0099 JS |
4132 | if ((pnode->cmd_qdepth != vport->cfg_tgt_queue_depth) && |
4133 | time_after(jiffies, pnode->last_change_time + | |
109f6ed0 | 4134 | msecs_to_jiffies(LPFC_TGTQ_INTERVAL))) { |
a257bf90 | 4135 | spin_lock_irqsave(shost->host_lock, flags); |
64bf0099 | 4136 | pnode->cmd_qdepth = vport->cfg_tgt_queue_depth; |
109f6ed0 | 4137 | pnode->last_change_time = jiffies; |
a257bf90 | 4138 | spin_unlock_irqrestore(shost->host_lock, flags); |
109f6ed0 | 4139 | } |
977b5a0a JS |
4140 | } |
4141 | ||
1dcb58e5 | 4142 | lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd); |
a257bf90 | 4143 | |
876dd7d0 | 4144 | spin_lock_irqsave(&phba->hbalock, flags); |
92e3af66 | 4145 | lpfc_cmd->pCmd = NULL; |
876dd7d0 | 4146 | spin_unlock_irqrestore(&phba->hbalock, flags); |
92e3af66 | 4147 | |
89533e9b JS |
4148 | /* The sdev is not guaranteed to be valid post scsi_done upcall. */ |
4149 | cmd->scsi_done(cmd); | |
4150 | ||
fa61a54e JS |
4151 | /* |
4152 | * If there is a thread waiting for command completion | |
4153 | * wake up the thread. | |
4154 | */ | |
a257bf90 | 4155 | spin_lock_irqsave(shost->host_lock, flags); |
fa61a54e JS |
4156 | if (lpfc_cmd->waitq) |
4157 | wake_up(lpfc_cmd->waitq); | |
a257bf90 | 4158 | spin_unlock_irqrestore(shost->host_lock, flags); |
fa61a54e | 4159 | |
0bd4ca25 | 4160 | lpfc_release_scsi_buf(phba, lpfc_cmd); |
dea3101e | 4161 | } |
4162 | ||
8b2564ec AK |
4163 | /** |
4164 | * lpfc_fcpcmd_to_iocb - copy the fcp_cmd data into the IOCB | |
4165 | * @data: A pointer to the immediate command data portion of the IOCB. | |
4166 | * @fcp_cmnd: The FCP Command that is provided by the SCSI layer. | |
4167 | * | |
4168 | * The routine copies the entire FCP command from @fcp_cmnd to @data while | |
4169 | * byte swapping the data to big endian format for transmission on the wire. | |
4170 | **/ | |
4171 | static void | |
4172 | lpfc_fcpcmd_to_iocb(uint8_t *data, struct fcp_cmnd *fcp_cmnd) | |
4173 | { | |
4174 | int i, j; | |
4175 | for (i = 0, j = 0; i < sizeof(struct fcp_cmnd); | |
4176 | i += sizeof(uint32_t), j++) { | |
4177 | ((uint32_t *)data)[j] = cpu_to_be32(((uint32_t *)fcp_cmnd)[j]); | |
4178 | } | |
4179 | } | |
4180 | ||
9bad7671 | 4181 | /** |
f1126688 | 4182 | * lpfc_scsi_prep_cmnd - Wrapper func for convert scsi cmnd to FCP info unit |
9bad7671 JS |
4183 | * @vport: The virtual port for which this call is being executed. |
4184 | * @lpfc_cmd: The scsi command which needs to send. | |
4185 | * @pnode: Pointer to lpfc_nodelist. | |
4186 | * | |
4187 | * This routine initializes fcp_cmnd and iocb data structure from scsi command | |
3772a991 | 4188 | * to transfer for device with SLI3 interface spec. |
9bad7671 | 4189 | **/ |
dea3101e | 4190 | static void |
f1126688 | 4191 | lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, |
2e0fef85 | 4192 | struct lpfc_nodelist *pnode) |
dea3101e | 4193 | { |
2e0fef85 | 4194 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4195 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; |
4196 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
4197 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; | |
4198 | struct lpfc_iocbq *piocbq = &(lpfc_cmd->cur_iocbq); | |
4199 | int datadir = scsi_cmnd->sc_data_direction; | |
027140ea JS |
4200 | uint8_t *ptr; |
4201 | bool sli4; | |
98bbf5f7 | 4202 | uint32_t fcpdl; |
dea3101e | 4203 | |
58da1ffb JS |
4204 | if (!pnode || !NLP_CHK_NODE_ACT(pnode)) |
4205 | return; | |
4206 | ||
dea3101e | 4207 | lpfc_cmd->fcp_rsp->rspSnsLen = 0; |
69859dc4 JSEC |
4208 | /* clear task management bits */ |
4209 | lpfc_cmd->fcp_cmnd->fcpCntl2 = 0; | |
dea3101e | 4210 | |
91886523 JSEC |
4211 | int_to_scsilun(lpfc_cmd->pCmd->device->lun, |
4212 | &lpfc_cmd->fcp_cmnd->fcp_lun); | |
dea3101e | 4213 | |
027140ea JS |
4214 | ptr = &fcp_cmnd->fcpCdb[0]; |
4215 | memcpy(ptr, scsi_cmnd->cmnd, scsi_cmnd->cmd_len); | |
4216 | if (scsi_cmnd->cmd_len < LPFC_FCP_CDB_LEN) { | |
4217 | ptr += scsi_cmnd->cmd_len; | |
4218 | memset(ptr, 0, (LPFC_FCP_CDB_LEN - scsi_cmnd->cmd_len)); | |
4219 | } | |
4220 | ||
50668633 | 4221 | fcp_cmnd->fcpCntl1 = SIMPLE_Q; |
dea3101e | 4222 | |
027140ea | 4223 | sli4 = (phba->sli_rev == LPFC_SLI_REV4); |
6acb3481 | 4224 | piocbq->iocb.un.fcpi.fcpi_XRdy = 0; |
027140ea | 4225 | |
dea3101e | 4226 | /* |
4227 | * There are three possibilities here - use scatter-gather segment, use | |
4228 | * the single mapping, or neither. Start the lpfc command prep by | |
4229 | * bumping the bpl beyond the fcp_cmnd and fcp_rsp regions to the first | |
4230 | * data bde entry. | |
4231 | */ | |
a0b4f78f | 4232 | if (scsi_sg_count(scsi_cmnd)) { |
dea3101e | 4233 | if (datadir == DMA_TO_DEVICE) { |
4234 | iocb_cmd->ulpCommand = CMD_FCP_IWRITE64_CR; | |
182ba753 | 4235 | iocb_cmd->ulpPU = PARM_READ_CHECK; |
3cb01c57 JS |
4236 | if (vport->cfg_first_burst_size && |
4237 | (pnode->nlp_flag & NLP_FIRSTBURST)) { | |
98bbf5f7 JS |
4238 | fcpdl = scsi_bufflen(scsi_cmnd); |
4239 | if (fcpdl < vport->cfg_first_burst_size) | |
4240 | piocbq->iocb.un.fcpi.fcpi_XRdy = fcpdl; | |
4241 | else | |
4242 | piocbq->iocb.un.fcpi.fcpi_XRdy = | |
4243 | vport->cfg_first_burst_size; | |
3cb01c57 | 4244 | } |
dea3101e | 4245 | fcp_cmnd->fcpCntl3 = WRITE_DATA; |
2cee7808 | 4246 | atomic_inc(&phba->fc4ScsiOutputRequests); |
dea3101e | 4247 | } else { |
4248 | iocb_cmd->ulpCommand = CMD_FCP_IREAD64_CR; | |
4249 | iocb_cmd->ulpPU = PARM_READ_CHECK; | |
dea3101e | 4250 | fcp_cmnd->fcpCntl3 = READ_DATA; |
2cee7808 | 4251 | atomic_inc(&phba->fc4ScsiInputRequests); |
dea3101e | 4252 | } |
4253 | } else { | |
4254 | iocb_cmd->ulpCommand = CMD_FCP_ICMND64_CR; | |
4255 | iocb_cmd->un.fcpi.fcpi_parm = 0; | |
4256 | iocb_cmd->ulpPU = 0; | |
4257 | fcp_cmnd->fcpCntl3 = 0; | |
2cee7808 | 4258 | atomic_inc(&phba->fc4ScsiControlRequests); |
dea3101e | 4259 | } |
8b2564ec AK |
4260 | if (phba->sli_rev == 3 && |
4261 | !(phba->sli3_options & LPFC_SLI3_BG_ENABLED)) | |
4262 | lpfc_fcpcmd_to_iocb(iocb_cmd->unsli3.fcp_ext.icd, fcp_cmnd); | |
dea3101e | 4263 | /* |
4264 | * Finish initializing those IOCB fields that are independent | |
4265 | * of the scsi_cmnd request_buffer | |
4266 | */ | |
4267 | piocbq->iocb.ulpContext = pnode->nlp_rpi; | |
027140ea | 4268 | if (sli4) |
6d368e53 JS |
4269 | piocbq->iocb.ulpContext = |
4270 | phba->sli4_hba.rpi_ids[pnode->nlp_rpi]; | |
dea3101e | 4271 | if (pnode->nlp_fcp_info & NLP_FCP_2_DEVICE) |
4272 | piocbq->iocb.ulpFCP2Rcvy = 1; | |
09372820 JS |
4273 | else |
4274 | piocbq->iocb.ulpFCP2Rcvy = 0; | |
dea3101e | 4275 | |
4276 | piocbq->iocb.ulpClass = (pnode->nlp_fcp_info & 0x0f); | |
4277 | piocbq->context1 = lpfc_cmd; | |
4278 | piocbq->iocb_cmpl = lpfc_scsi_cmd_iocb_cmpl; | |
4279 | piocbq->iocb.ulpTimeout = lpfc_cmd->timeout; | |
2e0fef85 | 4280 | piocbq->vport = vport; |
dea3101e | 4281 | } |
4282 | ||
da0436e9 | 4283 | /** |
6d368e53 | 4284 | * lpfc_scsi_prep_task_mgmt_cmd - Convert SLI3 scsi TM cmd to FCP info unit |
9bad7671 JS |
4285 | * @vport: The virtual port for which this call is being executed. |
4286 | * @lpfc_cmd: Pointer to lpfc_scsi_buf data structure. | |
4287 | * @lun: Logical unit number. | |
4288 | * @task_mgmt_cmd: SCSI task management command. | |
4289 | * | |
3772a991 JS |
4290 | * This routine creates FCP information unit corresponding to @task_mgmt_cmd |
4291 | * for device with SLI-3 interface spec. | |
9bad7671 JS |
4292 | * |
4293 | * Return codes: | |
4294 | * 0 - Error | |
4295 | * 1 - Success | |
4296 | **/ | |
dea3101e | 4297 | static int |
f1126688 | 4298 | lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_vport *vport, |
dea3101e | 4299 | struct lpfc_scsi_buf *lpfc_cmd, |
9cb78c16 | 4300 | uint64_t lun, |
dea3101e | 4301 | uint8_t task_mgmt_cmd) |
4302 | { | |
dea3101e | 4303 | struct lpfc_iocbq *piocbq; |
4304 | IOCB_t *piocb; | |
4305 | struct fcp_cmnd *fcp_cmnd; | |
0b18ac42 | 4306 | struct lpfc_rport_data *rdata = lpfc_cmd->rdata; |
dea3101e | 4307 | struct lpfc_nodelist *ndlp = rdata->pnode; |
4308 | ||
58da1ffb JS |
4309 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || |
4310 | ndlp->nlp_state != NLP_STE_MAPPED_NODE) | |
dea3101e | 4311 | return 0; |
dea3101e | 4312 | |
dea3101e | 4313 | piocbq = &(lpfc_cmd->cur_iocbq); |
2e0fef85 JS |
4314 | piocbq->vport = vport; |
4315 | ||
dea3101e | 4316 | piocb = &piocbq->iocb; |
4317 | ||
4318 | fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
34b02dcd JS |
4319 | /* Clear out any old data in the FCP command area */ |
4320 | memset(fcp_cmnd, 0, sizeof(struct fcp_cmnd)); | |
4321 | int_to_scsilun(lun, &fcp_cmnd->fcp_lun); | |
dea3101e | 4322 | fcp_cmnd->fcpCntl2 = task_mgmt_cmd; |
e2a0a9d6 JS |
4323 | if (vport->phba->sli_rev == 3 && |
4324 | !(vport->phba->sli3_options & LPFC_SLI3_BG_ENABLED)) | |
34b02dcd | 4325 | lpfc_fcpcmd_to_iocb(piocb->unsli3.fcp_ext.icd, fcp_cmnd); |
dea3101e | 4326 | piocb->ulpCommand = CMD_FCP_ICMND64_CR; |
dea3101e | 4327 | piocb->ulpContext = ndlp->nlp_rpi; |
6d368e53 JS |
4328 | if (vport->phba->sli_rev == LPFC_SLI_REV4) { |
4329 | piocb->ulpContext = | |
4330 | vport->phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; | |
4331 | } | |
53151bbb | 4332 | piocb->ulpFCP2Rcvy = (ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) ? 1 : 0; |
dea3101e | 4333 | piocb->ulpClass = (ndlp->nlp_fcp_info & 0x0f); |
f9226c20 JS |
4334 | piocb->ulpPU = 0; |
4335 | piocb->un.fcpi.fcpi_parm = 0; | |
dea3101e | 4336 | |
4337 | /* ulpTimeout is only one byte */ | |
4338 | if (lpfc_cmd->timeout > 0xff) { | |
4339 | /* | |
4340 | * Do not timeout the command at the firmware level. | |
4341 | * The driver will provide the timeout mechanism. | |
4342 | */ | |
4343 | piocb->ulpTimeout = 0; | |
f1126688 | 4344 | } else |
dea3101e | 4345 | piocb->ulpTimeout = lpfc_cmd->timeout; |
da0436e9 | 4346 | |
f1126688 JS |
4347 | if (vport->phba->sli_rev == LPFC_SLI_REV4) |
4348 | lpfc_sli4_set_rsp_sgl_last(vport->phba, lpfc_cmd); | |
3772a991 | 4349 | |
f1126688 | 4350 | return 1; |
3772a991 JS |
4351 | } |
4352 | ||
4353 | /** | |
25985edc | 4354 | * lpfc_scsi_api_table_setup - Set up scsi api function jump table |
3772a991 JS |
4355 | * @phba: The hba struct for which this call is being executed. |
4356 | * @dev_grp: The HBA PCI-Device group number. | |
4357 | * | |
4358 | * This routine sets up the SCSI interface API function jump table in @phba | |
4359 | * struct. | |
4360 | * Returns: 0 - success, -ENODEV - failure. | |
4361 | **/ | |
4362 | int | |
4363 | lpfc_scsi_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) | |
4364 | { | |
4365 | ||
f1126688 JS |
4366 | phba->lpfc_scsi_unprep_dma_buf = lpfc_scsi_unprep_dma_buf; |
4367 | phba->lpfc_scsi_prep_cmnd = lpfc_scsi_prep_cmnd; | |
f1126688 | 4368 | |
3772a991 JS |
4369 | switch (dev_grp) { |
4370 | case LPFC_PCI_DEV_LP: | |
4371 | phba->lpfc_new_scsi_buf = lpfc_new_scsi_buf_s3; | |
4372 | phba->lpfc_scsi_prep_dma_buf = lpfc_scsi_prep_dma_buf_s3; | |
acd6859b | 4373 | phba->lpfc_bg_scsi_prep_dma_buf = lpfc_bg_scsi_prep_dma_buf_s3; |
3772a991 | 4374 | phba->lpfc_release_scsi_buf = lpfc_release_scsi_buf_s3; |
19ca7609 | 4375 | phba->lpfc_get_scsi_buf = lpfc_get_scsi_buf_s3; |
3772a991 | 4376 | break; |
da0436e9 JS |
4377 | case LPFC_PCI_DEV_OC: |
4378 | phba->lpfc_new_scsi_buf = lpfc_new_scsi_buf_s4; | |
4379 | phba->lpfc_scsi_prep_dma_buf = lpfc_scsi_prep_dma_buf_s4; | |
acd6859b | 4380 | phba->lpfc_bg_scsi_prep_dma_buf = lpfc_bg_scsi_prep_dma_buf_s4; |
da0436e9 | 4381 | phba->lpfc_release_scsi_buf = lpfc_release_scsi_buf_s4; |
19ca7609 | 4382 | phba->lpfc_get_scsi_buf = lpfc_get_scsi_buf_s4; |
da0436e9 | 4383 | break; |
3772a991 JS |
4384 | default: |
4385 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
4386 | "1418 Invalid HBA PCI-device group: 0x%x\n", | |
4387 | dev_grp); | |
4388 | return -ENODEV; | |
4389 | break; | |
4390 | } | |
3772a991 | 4391 | phba->lpfc_rampdown_queue_depth = lpfc_rampdown_queue_depth; |
84d1b006 | 4392 | phba->lpfc_scsi_cmd_iocb_cmpl = lpfc_scsi_cmd_iocb_cmpl; |
3772a991 JS |
4393 | return 0; |
4394 | } | |
4395 | ||
9bad7671 | 4396 | /** |
3621a710 | 4397 | * lpfc_taskmgmt_def_cmpl - IOCB completion routine for task management command |
9bad7671 JS |
4398 | * @phba: The Hba for which this call is being executed. |
4399 | * @cmdiocbq: Pointer to lpfc_iocbq data structure. | |
4400 | * @rspiocbq: Pointer to lpfc_iocbq data structure. | |
4401 | * | |
4402 | * This routine is IOCB completion routine for device reset and target reset | |
4403 | * routine. This routine release scsi buffer associated with lpfc_cmd. | |
4404 | **/ | |
7054a606 JS |
4405 | static void |
4406 | lpfc_tskmgmt_def_cmpl(struct lpfc_hba *phba, | |
4407 | struct lpfc_iocbq *cmdiocbq, | |
4408 | struct lpfc_iocbq *rspiocbq) | |
4409 | { | |
4410 | struct lpfc_scsi_buf *lpfc_cmd = | |
4411 | (struct lpfc_scsi_buf *) cmdiocbq->context1; | |
4412 | if (lpfc_cmd) | |
4413 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
4414 | return; | |
4415 | } | |
4416 | ||
9bad7671 | 4417 | /** |
3621a710 | 4418 | * lpfc_info - Info entry point of scsi_host_template data structure |
9bad7671 JS |
4419 | * @host: The scsi host for which this call is being executed. |
4420 | * | |
4421 | * This routine provides module information about hba. | |
4422 | * | |
4423 | * Reutrn code: | |
4424 | * Pointer to char - Success. | |
4425 | **/ | |
dea3101e | 4426 | const char * |
4427 | lpfc_info(struct Scsi_Host *host) | |
4428 | { | |
2e0fef85 JS |
4429 | struct lpfc_vport *vport = (struct lpfc_vport *) host->hostdata; |
4430 | struct lpfc_hba *phba = vport->phba; | |
8b68cd52 | 4431 | int len, link_speed = 0; |
dea3101e | 4432 | static char lpfcinfobuf[384]; |
4433 | ||
4434 | memset(lpfcinfobuf,0,384); | |
4435 | if (phba && phba->pcidev){ | |
4436 | strncpy(lpfcinfobuf, phba->ModelDesc, 256); | |
4437 | len = strlen(lpfcinfobuf); | |
4438 | snprintf(lpfcinfobuf + len, | |
4439 | 384-len, | |
4440 | " on PCI bus %02x device %02x irq %d", | |
4441 | phba->pcidev->bus->number, | |
4442 | phba->pcidev->devfn, | |
4443 | phba->pcidev->irq); | |
4444 | len = strlen(lpfcinfobuf); | |
4445 | if (phba->Port[0]) { | |
4446 | snprintf(lpfcinfobuf + len, | |
4447 | 384-len, | |
4448 | " port %s", | |
4449 | phba->Port); | |
4450 | } | |
65467b6b | 4451 | len = strlen(lpfcinfobuf); |
a085e87c | 4452 | link_speed = lpfc_sli_port_speed_get(phba); |
8b68cd52 JS |
4453 | if (link_speed != 0) |
4454 | snprintf(lpfcinfobuf + len, 384-len, | |
4455 | " Logical Link Speed: %d Mbps", link_speed); | |
dea3101e | 4456 | } |
4457 | return lpfcinfobuf; | |
4458 | } | |
4459 | ||
9bad7671 | 4460 | /** |
3621a710 | 4461 | * lpfc_poll_rearm_time - Routine to modify fcp_poll timer of hba |
9bad7671 JS |
4462 | * @phba: The Hba for which this call is being executed. |
4463 | * | |
4464 | * This routine modifies fcp_poll_timer field of @phba by cfg_poll_tmo. | |
4465 | * The default value of cfg_poll_tmo is 10 milliseconds. | |
4466 | **/ | |
875fbdfe JSEC |
4467 | static __inline__ void lpfc_poll_rearm_timer(struct lpfc_hba * phba) |
4468 | { | |
4469 | unsigned long poll_tmo_expires = | |
4470 | (jiffies + msecs_to_jiffies(phba->cfg_poll_tmo)); | |
4471 | ||
895427bd | 4472 | if (!list_empty(&phba->sli.sli3_ring[LPFC_FCP_RING].txcmplq)) |
875fbdfe JSEC |
4473 | mod_timer(&phba->fcp_poll_timer, |
4474 | poll_tmo_expires); | |
4475 | } | |
4476 | ||
9bad7671 | 4477 | /** |
3621a710 | 4478 | * lpfc_poll_start_timer - Routine to start fcp_poll_timer of HBA |
9bad7671 JS |
4479 | * @phba: The Hba for which this call is being executed. |
4480 | * | |
4481 | * This routine starts the fcp_poll_timer of @phba. | |
4482 | **/ | |
875fbdfe JSEC |
4483 | void lpfc_poll_start_timer(struct lpfc_hba * phba) |
4484 | { | |
4485 | lpfc_poll_rearm_timer(phba); | |
4486 | } | |
4487 | ||
9bad7671 | 4488 | /** |
3621a710 | 4489 | * lpfc_poll_timeout - Restart polling timer |
9bad7671 JS |
4490 | * @ptr: Map to lpfc_hba data structure pointer. |
4491 | * | |
4492 | * This routine restarts fcp_poll timer, when FCP ring polling is enable | |
4493 | * and FCP Ring interrupt is disable. | |
4494 | **/ | |
4495 | ||
f22eb4d3 | 4496 | void lpfc_poll_timeout(struct timer_list *t) |
875fbdfe | 4497 | { |
f22eb4d3 | 4498 | struct lpfc_hba *phba = from_timer(phba, t, fcp_poll_timer); |
875fbdfe JSEC |
4499 | |
4500 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { | |
45ed1190 | 4501 | lpfc_sli_handle_fast_ring_event(phba, |
895427bd | 4502 | &phba->sli.sli3_ring[LPFC_FCP_RING], HA_R0RE_REQ); |
45ed1190 | 4503 | |
875fbdfe JSEC |
4504 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
4505 | lpfc_poll_rearm_timer(phba); | |
4506 | } | |
875fbdfe JSEC |
4507 | } |
4508 | ||
9bad7671 | 4509 | /** |
3621a710 | 4510 | * lpfc_queuecommand - scsi_host_template queuecommand entry point |
9bad7671 JS |
4511 | * @cmnd: Pointer to scsi_cmnd data structure. |
4512 | * @done: Pointer to done routine. | |
4513 | * | |
4514 | * Driver registers this routine to scsi midlayer to submit a @cmd to process. | |
4515 | * This routine prepares an IOCB from scsi command and provides to firmware. | |
4516 | * The @done callback is invoked after driver finished processing the command. | |
4517 | * | |
4518 | * Return value : | |
4519 | * 0 - Success | |
4520 | * SCSI_MLQUEUE_HOST_BUSY - Block all devices served by this host temporarily. | |
4521 | **/ | |
dea3101e | 4522 | static int |
b9a7c631 | 4523 | lpfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) |
dea3101e | 4524 | { |
2e0fef85 JS |
4525 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
4526 | struct lpfc_hba *phba = vport->phba; | |
1ba981fd | 4527 | struct lpfc_rport_data *rdata; |
1c6f4ef5 | 4528 | struct lpfc_nodelist *ndlp; |
0bd4ca25 | 4529 | struct lpfc_scsi_buf *lpfc_cmd; |
19a7b4ae | 4530 | struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); |
19a7b4ae | 4531 | int err; |
dea3101e | 4532 | |
1ba981fd | 4533 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
19a7b4ae JSEC |
4534 | err = fc_remote_port_chkready(rport); |
4535 | if (err) { | |
4536 | cmnd->result = err; | |
dea3101e | 4537 | goto out_fail_command; |
4538 | } | |
1c6f4ef5 | 4539 | ndlp = rdata->pnode; |
dea3101e | 4540 | |
bf08611b | 4541 | if ((scsi_get_prot_op(cmnd) != SCSI_PROT_NORMAL) && |
acd6859b | 4542 | (!(phba->sli3_options & LPFC_SLI3_BG_ENABLED))) { |
e2a0a9d6 | 4543 | |
6a9c52cf JS |
4544 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
4545 | "9058 BLKGRD: ERROR: rcvd protected cmd:%02x" | |
4546 | " op:%02x str=%s without registering for" | |
4547 | " BlockGuard - Rejecting command\n", | |
e2a0a9d6 JS |
4548 | cmnd->cmnd[0], scsi_get_prot_op(cmnd), |
4549 | dif_op_str[scsi_get_prot_op(cmnd)]); | |
4550 | goto out_fail_command; | |
4551 | } | |
4552 | ||
dea3101e | 4553 | /* |
19a7b4ae JSEC |
4554 | * Catch race where our node has transitioned, but the |
4555 | * transport is still transitioning. | |
dea3101e | 4556 | */ |
6b415f5d JS |
4557 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) |
4558 | goto out_tgt_busy; | |
64bf0099 JS |
4559 | if (atomic_read(&ndlp->cmd_pending) >= ndlp->cmd_qdepth) { |
4560 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP_ERROR, | |
4561 | "3377 Target Queue Full, scsi Id:%d Qdepth:%d" | |
4562 | " Pending command:%d" | |
4563 | " WWNN:%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x, " | |
4564 | " WWPN:%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x", | |
4565 | ndlp->nlp_sid, ndlp->cmd_qdepth, | |
4566 | atomic_read(&ndlp->cmd_pending), | |
4567 | ndlp->nlp_nodename.u.wwn[0], | |
4568 | ndlp->nlp_nodename.u.wwn[1], | |
4569 | ndlp->nlp_nodename.u.wwn[2], | |
4570 | ndlp->nlp_nodename.u.wwn[3], | |
4571 | ndlp->nlp_nodename.u.wwn[4], | |
4572 | ndlp->nlp_nodename.u.wwn[5], | |
4573 | ndlp->nlp_nodename.u.wwn[6], | |
4574 | ndlp->nlp_nodename.u.wwn[7], | |
4575 | ndlp->nlp_portname.u.wwn[0], | |
4576 | ndlp->nlp_portname.u.wwn[1], | |
4577 | ndlp->nlp_portname.u.wwn[2], | |
4578 | ndlp->nlp_portname.u.wwn[3], | |
4579 | ndlp->nlp_portname.u.wwn[4], | |
4580 | ndlp->nlp_portname.u.wwn[5], | |
4581 | ndlp->nlp_portname.u.wwn[6], | |
4582 | ndlp->nlp_portname.u.wwn[7]); | |
3496343d | 4583 | goto out_tgt_busy; |
64bf0099 | 4584 | } |
19ca7609 | 4585 | lpfc_cmd = lpfc_get_scsi_buf(phba, ndlp); |
dea3101e | 4586 | if (lpfc_cmd == NULL) { |
eaf15d5b | 4587 | lpfc_rampdown_queue_depth(phba); |
92d7f7b0 | 4588 | |
895427bd | 4589 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP_ERROR, |
e8b62011 JS |
4590 | "0707 driver's buffer pool is empty, " |
4591 | "IO busied\n"); | |
dea3101e | 4592 | goto out_host_busy; |
4593 | } | |
4594 | ||
4595 | /* | |
4596 | * Store the midlayer's command structure for the completion phase | |
4597 | * and complete the command initialization. | |
4598 | */ | |
4599 | lpfc_cmd->pCmd = cmnd; | |
4600 | lpfc_cmd->rdata = rdata; | |
4601 | lpfc_cmd->timeout = 0; | |
977b5a0a | 4602 | lpfc_cmd->start_time = jiffies; |
dea3101e | 4603 | cmnd->host_scribble = (unsigned char *)lpfc_cmd; |
dea3101e | 4604 | |
e2a0a9d6 | 4605 | if (scsi_get_prot_op(cmnd) != SCSI_PROT_NORMAL) { |
6a9c52cf | 4606 | if (vport->phba->cfg_enable_bg) { |
737d4248 JS |
4607 | lpfc_printf_vlog(vport, |
4608 | KERN_INFO, LOG_SCSI_CMD, | |
2613470a JS |
4609 | "9033 BLKGRD: rcvd %s cmd:x%x " |
4610 | "sector x%llx cnt %u pt %x\n", | |
4611 | dif_op_str[scsi_get_prot_op(cmnd)], | |
4612 | cmnd->cmnd[0], | |
4613 | (unsigned long long)scsi_get_lba(cmnd), | |
4614 | blk_rq_sectors(cmnd->request), | |
4615 | (cmnd->cmnd[1]>>5)); | |
6a9c52cf | 4616 | } |
e2a0a9d6 JS |
4617 | err = lpfc_bg_scsi_prep_dma_buf(phba, lpfc_cmd); |
4618 | } else { | |
6a9c52cf | 4619 | if (vport->phba->cfg_enable_bg) { |
737d4248 JS |
4620 | lpfc_printf_vlog(vport, |
4621 | KERN_INFO, LOG_SCSI_CMD, | |
2613470a JS |
4622 | "9038 BLKGRD: rcvd PROT_NORMAL cmd: " |
4623 | "x%x sector x%llx cnt %u pt %x\n", | |
4624 | cmnd->cmnd[0], | |
4625 | (unsigned long long)scsi_get_lba(cmnd), | |
9a6b09c0 | 4626 | blk_rq_sectors(cmnd->request), |
2613470a | 4627 | (cmnd->cmnd[1]>>5)); |
6a9c52cf | 4628 | } |
e2a0a9d6 JS |
4629 | err = lpfc_scsi_prep_dma_buf(phba, lpfc_cmd); |
4630 | } | |
4631 | ||
dea3101e | 4632 | if (err) |
4633 | goto out_host_busy_free_buf; | |
4634 | ||
2e0fef85 | 4635 | lpfc_scsi_prep_cmnd(vport, lpfc_cmd, ndlp); |
dea3101e | 4636 | |
977b5a0a | 4637 | atomic_inc(&ndlp->cmd_pending); |
3772a991 | 4638 | err = lpfc_sli_issue_iocb(phba, LPFC_FCP_RING, |
92d7f7b0 | 4639 | &lpfc_cmd->cur_iocbq, SLI_IOCB_RET_IOCB); |
eaf15d5b JS |
4640 | if (err) { |
4641 | atomic_dec(&ndlp->cmd_pending); | |
76f96b6d JS |
4642 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, |
4643 | "3376 FCP could not issue IOCB err %x" | |
9cb78c16 | 4644 | "FCP cmd x%x <%d/%llu> " |
76f96b6d JS |
4645 | "sid: x%x did: x%x oxid: x%x " |
4646 | "Data: x%x x%x x%x x%x\n", | |
4647 | err, cmnd->cmnd[0], | |
4648 | cmnd->device ? cmnd->device->id : 0xffff, | |
9cb78c16 | 4649 | cmnd->device ? cmnd->device->lun : (u64) -1, |
76f96b6d JS |
4650 | vport->fc_myDID, ndlp->nlp_DID, |
4651 | phba->sli_rev == LPFC_SLI_REV4 ? | |
4652 | lpfc_cmd->cur_iocbq.sli4_xritag : 0xffff, | |
4653 | lpfc_cmd->cur_iocbq.iocb.ulpContext, | |
4654 | lpfc_cmd->cur_iocbq.iocb.ulpIoTag, | |
4655 | lpfc_cmd->cur_iocbq.iocb.ulpTimeout, | |
4656 | (uint32_t) | |
4657 | (cmnd->request->timeout / 1000)); | |
4658 | ||
2cee7808 JS |
4659 | switch (lpfc_cmd->fcp_cmnd->fcpCntl3) { |
4660 | case WRITE_DATA: | |
4661 | atomic_dec(&phba->fc4ScsiOutputRequests); | |
4662 | break; | |
4663 | case READ_DATA: | |
4664 | atomic_dec(&phba->fc4ScsiInputRequests); | |
4665 | break; | |
4666 | default: | |
4667 | atomic_dec(&phba->fc4ScsiControlRequests); | |
4668 | } | |
dea3101e | 4669 | goto out_host_busy_free_buf; |
eaf15d5b | 4670 | } |
875fbdfe | 4671 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { |
45ed1190 | 4672 | lpfc_sli_handle_fast_ring_event(phba, |
895427bd | 4673 | &phba->sli.sli3_ring[LPFC_FCP_RING], HA_R0RE_REQ); |
45ed1190 | 4674 | |
875fbdfe JSEC |
4675 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
4676 | lpfc_poll_rearm_timer(phba); | |
4677 | } | |
4678 | ||
dea3101e | 4679 | return 0; |
4680 | ||
4681 | out_host_busy_free_buf: | |
bcf4dbfa | 4682 | lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd); |
0bd4ca25 | 4683 | lpfc_release_scsi_buf(phba, lpfc_cmd); |
dea3101e | 4684 | out_host_busy: |
4685 | return SCSI_MLQUEUE_HOST_BUSY; | |
4686 | ||
3496343d MC |
4687 | out_tgt_busy: |
4688 | return SCSI_MLQUEUE_TARGET_BUSY; | |
4689 | ||
dea3101e | 4690 | out_fail_command: |
b9a7c631 | 4691 | cmnd->scsi_done(cmnd); |
dea3101e | 4692 | return 0; |
4693 | } | |
4694 | ||
f281233d | 4695 | |
9bad7671 | 4696 | /** |
3621a710 | 4697 | * lpfc_abort_handler - scsi_host_template eh_abort_handler entry point |
9bad7671 JS |
4698 | * @cmnd: Pointer to scsi_cmnd data structure. |
4699 | * | |
4700 | * This routine aborts @cmnd pending in base driver. | |
4701 | * | |
4702 | * Return code : | |
4703 | * 0x2003 - Error | |
4704 | * 0x2002 - Success | |
4705 | **/ | |
dea3101e | 4706 | static int |
63c59c3b | 4707 | lpfc_abort_handler(struct scsi_cmnd *cmnd) |
dea3101e | 4708 | { |
2e0fef85 JS |
4709 | struct Scsi_Host *shost = cmnd->device->host; |
4710 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
4711 | struct lpfc_hba *phba = vport->phba; | |
0bd4ca25 JSEC |
4712 | struct lpfc_iocbq *iocb; |
4713 | struct lpfc_iocbq *abtsiocb; | |
dea3101e | 4714 | struct lpfc_scsi_buf *lpfc_cmd; |
dea3101e | 4715 | IOCB_t *cmd, *icmd; |
3a70730a | 4716 | int ret = SUCCESS, status = 0; |
98912dda | 4717 | struct lpfc_sli_ring *pring_s4; |
895427bd | 4718 | int ret_val; |
98912dda | 4719 | unsigned long flags, iflags; |
fa61a54e | 4720 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(waitq); |
dea3101e | 4721 | |
3a70730a | 4722 | status = fc_block_scsi_eh(cmnd); |
908e18e4 | 4723 | if (status != 0 && status != SUCCESS) |
3a70730a | 4724 | return status; |
4f2e66c6 | 4725 | |
876dd7d0 | 4726 | spin_lock_irqsave(&phba->hbalock, flags); |
4f2e66c6 JS |
4727 | /* driver queued commands are in process of being flushed */ |
4728 | if (phba->hba_flag & HBA_FCP_IOQ_FLUSH) { | |
876dd7d0 | 4729 | spin_unlock_irqrestore(&phba->hbalock, flags); |
4f2e66c6 JS |
4730 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
4731 | "3168 SCSI Layer abort requested I/O has been " | |
4732 | "flushed by LLD.\n"); | |
4733 | return FAILED; | |
4734 | } | |
4735 | ||
0bd4ca25 | 4736 | lpfc_cmd = (struct lpfc_scsi_buf *)cmnd->host_scribble; |
92e3af66 | 4737 | if (!lpfc_cmd || !lpfc_cmd->pCmd) { |
876dd7d0 | 4738 | spin_unlock_irqrestore(&phba->hbalock, flags); |
eee8877e JS |
4739 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
4740 | "2873 SCSI Layer I/O Abort Request IO CMPL Status " | |
9cb78c16 | 4741 | "x%x ID %d LUN %llu\n", |
3a70730a | 4742 | SUCCESS, cmnd->device->id, cmnd->device->lun); |
eee8877e JS |
4743 | return SUCCESS; |
4744 | } | |
dea3101e | 4745 | |
4f2e66c6 JS |
4746 | iocb = &lpfc_cmd->cur_iocbq; |
4747 | /* the command is in process of being cancelled */ | |
4748 | if (!(iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ)) { | |
876dd7d0 | 4749 | spin_unlock_irqrestore(&phba->hbalock, flags); |
4f2e66c6 JS |
4750 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
4751 | "3169 SCSI Layer abort requested I/O has been " | |
4752 | "cancelled by LLD.\n"); | |
4753 | return FAILED; | |
4754 | } | |
0bd4ca25 JSEC |
4755 | /* |
4756 | * If pCmd field of the corresponding lpfc_scsi_buf structure | |
4757 | * points to a different SCSI command, then the driver has | |
4758 | * already completed this command, but the midlayer did not | |
4f2e66c6 | 4759 | * see the completion before the eh fired. Just return SUCCESS. |
0bd4ca25 | 4760 | */ |
4f2e66c6 JS |
4761 | if (lpfc_cmd->pCmd != cmnd) { |
4762 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, | |
4763 | "3170 SCSI Layer abort requested I/O has been " | |
4764 | "completed by LLD.\n"); | |
4765 | goto out_unlock; | |
4766 | } | |
dea3101e | 4767 | |
0bd4ca25 | 4768 | BUG_ON(iocb->context1 != lpfc_cmd); |
dea3101e | 4769 | |
ee62021a JS |
4770 | /* abort issued in recovery is still in progress */ |
4771 | if (iocb->iocb_flag & LPFC_DRIVER_ABORTED) { | |
4772 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, | |
4773 | "3389 SCSI Layer I/O Abort Request is pending\n"); | |
4774 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
4775 | goto wait_for_cmpl; | |
4776 | } | |
4777 | ||
4f2e66c6 | 4778 | abtsiocb = __lpfc_sli_get_iocbq(phba); |
0bd4ca25 JSEC |
4779 | if (abtsiocb == NULL) { |
4780 | ret = FAILED; | |
4f2e66c6 | 4781 | goto out_unlock; |
dea3101e | 4782 | } |
4783 | ||
afbd8d88 JS |
4784 | /* Indicate the IO is being aborted by the driver. */ |
4785 | iocb->iocb_flag |= LPFC_DRIVER_ABORTED; | |
4786 | ||
dea3101e | 4787 | /* |
0bd4ca25 JSEC |
4788 | * The scsi command can not be in txq and it is in flight because the |
4789 | * pCmd is still pointig at the SCSI command we have to abort. There | |
4790 | * is no need to search the txcmplq. Just send an abort to the FW. | |
dea3101e | 4791 | */ |
dea3101e | 4792 | |
0bd4ca25 JSEC |
4793 | cmd = &iocb->iocb; |
4794 | icmd = &abtsiocb->iocb; | |
4795 | icmd->un.acxri.abortType = ABORT_TYPE_ABTS; | |
4796 | icmd->un.acxri.abortContextTag = cmd->ulpContext; | |
3772a991 JS |
4797 | if (phba->sli_rev == LPFC_SLI_REV4) |
4798 | icmd->un.acxri.abortIoTag = iocb->sli4_xritag; | |
4799 | else | |
4800 | icmd->un.acxri.abortIoTag = cmd->ulpIoTag; | |
dea3101e | 4801 | |
0bd4ca25 JSEC |
4802 | icmd->ulpLe = 1; |
4803 | icmd->ulpClass = cmd->ulpClass; | |
5ffc266e JS |
4804 | |
4805 | /* ABTS WQE must go to the same WQ as the WQE to be aborted */ | |
895427bd | 4806 | abtsiocb->hba_wqidx = iocb->hba_wqidx; |
341af102 | 4807 | abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX; |
9bd2bff5 JS |
4808 | if (iocb->iocb_flag & LPFC_IO_FOF) |
4809 | abtsiocb->iocb_flag |= LPFC_IO_FOF; | |
5ffc266e | 4810 | |
2e0fef85 | 4811 | if (lpfc_is_link_up(phba)) |
0bd4ca25 JSEC |
4812 | icmd->ulpCommand = CMD_ABORT_XRI_CN; |
4813 | else | |
4814 | icmd->ulpCommand = CMD_CLOSE_XRI_CN; | |
dea3101e | 4815 | |
0bd4ca25 | 4816 | abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl; |
2e0fef85 | 4817 | abtsiocb->vport = vport; |
98912dda | 4818 | if (phba->sli_rev == LPFC_SLI_REV4) { |
895427bd JS |
4819 | pring_s4 = lpfc_sli4_calc_ring(phba, iocb); |
4820 | if (pring_s4 == NULL) { | |
4821 | ret = FAILED; | |
4822 | goto out_unlock; | |
4823 | } | |
98912dda JS |
4824 | /* Note: both hbalock and ring_lock must be set here */ |
4825 | spin_lock_irqsave(&pring_s4->ring_lock, iflags); | |
4826 | ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno, | |
4827 | abtsiocb, 0); | |
4828 | spin_unlock_irqrestore(&pring_s4->ring_lock, iflags); | |
4829 | } else { | |
4830 | ret_val = __lpfc_sli_issue_iocb(phba, LPFC_FCP_RING, | |
4831 | abtsiocb, 0); | |
4832 | } | |
4f2e66c6 | 4833 | /* no longer need the lock after this point */ |
876dd7d0 | 4834 | spin_unlock_irqrestore(&phba->hbalock, flags); |
4f2e66c6 | 4835 | |
98912dda JS |
4836 | |
4837 | if (ret_val == IOCB_ERROR) { | |
0bd4ca25 JSEC |
4838 | lpfc_sli_release_iocbq(phba, abtsiocb); |
4839 | ret = FAILED; | |
4840 | goto out; | |
4841 | } | |
dea3101e | 4842 | |
875fbdfe | 4843 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
45ed1190 | 4844 | lpfc_sli_handle_fast_ring_event(phba, |
895427bd | 4845 | &phba->sli.sli3_ring[LPFC_FCP_RING], HA_R0RE_REQ); |
875fbdfe | 4846 | |
ee62021a | 4847 | wait_for_cmpl: |
fa61a54e | 4848 | lpfc_cmd->waitq = &waitq; |
0bd4ca25 | 4849 | /* Wait for abort to complete */ |
fa61a54e JS |
4850 | wait_event_timeout(waitq, |
4851 | (lpfc_cmd->pCmd != cmnd), | |
256ec0d0 | 4852 | msecs_to_jiffies(2*vport->cfg_devloss_tmo*1000)); |
ee62021a JS |
4853 | |
4854 | spin_lock_irqsave(shost->host_lock, flags); | |
fa61a54e | 4855 | lpfc_cmd->waitq = NULL; |
ee62021a | 4856 | spin_unlock_irqrestore(shost->host_lock, flags); |
dea3101e | 4857 | |
0bd4ca25 JSEC |
4858 | if (lpfc_cmd->pCmd == cmnd) { |
4859 | ret = FAILED; | |
e8b62011 JS |
4860 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
4861 | "0748 abort handler timed out waiting " | |
4b160ae8 | 4862 | "for aborting I/O (xri:x%x) to complete: " |
9cb78c16 | 4863 | "ret %#x, ID %d, LUN %llu\n", |
247ca945 JS |
4864 | iocb->sli4_xritag, ret, |
4865 | cmnd->device->id, cmnd->device->lun); | |
dea3101e | 4866 | } |
4f2e66c6 | 4867 | goto out; |
dea3101e | 4868 | |
4f2e66c6 | 4869 | out_unlock: |
876dd7d0 | 4870 | spin_unlock_irqrestore(&phba->hbalock, flags); |
4f2e66c6 | 4871 | out: |
e8b62011 JS |
4872 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
4873 | "0749 SCSI Layer I/O Abort Request Status x%x ID %d " | |
9cb78c16 | 4874 | "LUN %llu\n", ret, cmnd->device->id, |
5cd049a5 | 4875 | cmnd->device->lun); |
63c59c3b | 4876 | return ret; |
8fa728a2 JG |
4877 | } |
4878 | ||
bbb9d180 JS |
4879 | static char * |
4880 | lpfc_taskmgmt_name(uint8_t task_mgmt_cmd) | |
4881 | { | |
4882 | switch (task_mgmt_cmd) { | |
4883 | case FCP_ABORT_TASK_SET: | |
4884 | return "ABORT_TASK_SET"; | |
4885 | case FCP_CLEAR_TASK_SET: | |
4886 | return "FCP_CLEAR_TASK_SET"; | |
4887 | case FCP_BUS_RESET: | |
4888 | return "FCP_BUS_RESET"; | |
4889 | case FCP_LUN_RESET: | |
4890 | return "FCP_LUN_RESET"; | |
4891 | case FCP_TARGET_RESET: | |
4892 | return "FCP_TARGET_RESET"; | |
4893 | case FCP_CLEAR_ACA: | |
4894 | return "FCP_CLEAR_ACA"; | |
4895 | case FCP_TERMINATE_TASK: | |
4896 | return "FCP_TERMINATE_TASK"; | |
4897 | default: | |
4898 | return "unknown"; | |
4899 | } | |
4900 | } | |
4901 | ||
53151bbb JS |
4902 | |
4903 | /** | |
4904 | * lpfc_check_fcp_rsp - check the returned fcp_rsp to see if task failed | |
4905 | * @vport: The virtual port for which this call is being executed. | |
4906 | * @lpfc_cmd: Pointer to lpfc_scsi_buf data structure. | |
4907 | * | |
4908 | * This routine checks the FCP RSP INFO to see if the tsk mgmt command succeded | |
4909 | * | |
4910 | * Return code : | |
4911 | * 0x2003 - Error | |
4912 | * 0x2002 - Success | |
4913 | **/ | |
4914 | static int | |
4915 | lpfc_check_fcp_rsp(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd) | |
4916 | { | |
4917 | struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp; | |
4918 | uint32_t rsp_info; | |
4919 | uint32_t rsp_len; | |
4920 | uint8_t rsp_info_code; | |
4921 | int ret = FAILED; | |
4922 | ||
4923 | ||
4924 | if (fcprsp == NULL) | |
4925 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
4926 | "0703 fcp_rsp is missing\n"); | |
4927 | else { | |
4928 | rsp_info = fcprsp->rspStatus2; | |
4929 | rsp_len = be32_to_cpu(fcprsp->rspRspLen); | |
4930 | rsp_info_code = fcprsp->rspInfo3; | |
4931 | ||
4932 | ||
4933 | lpfc_printf_vlog(vport, KERN_INFO, | |
4934 | LOG_FCP, | |
4935 | "0706 fcp_rsp valid 0x%x," | |
4936 | " rsp len=%d code 0x%x\n", | |
4937 | rsp_info, | |
4938 | rsp_len, rsp_info_code); | |
4939 | ||
4940 | if ((fcprsp->rspStatus2&RSP_LEN_VALID) && (rsp_len == 8)) { | |
4941 | switch (rsp_info_code) { | |
4942 | case RSP_NO_FAILURE: | |
4943 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
4944 | "0715 Task Mgmt No Failure\n"); | |
4945 | ret = SUCCESS; | |
4946 | break; | |
4947 | case RSP_TM_NOT_SUPPORTED: /* TM rejected */ | |
4948 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
4949 | "0716 Task Mgmt Target " | |
4950 | "reject\n"); | |
4951 | break; | |
4952 | case RSP_TM_NOT_COMPLETED: /* TM failed */ | |
4953 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
4954 | "0717 Task Mgmt Target " | |
4955 | "failed TM\n"); | |
4956 | break; | |
4957 | case RSP_TM_INVALID_LU: /* TM to invalid LU! */ | |
4958 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
4959 | "0718 Task Mgmt to invalid " | |
4960 | "LUN\n"); | |
4961 | break; | |
4962 | } | |
4963 | } | |
4964 | } | |
4965 | return ret; | |
4966 | } | |
4967 | ||
4968 | ||
9bad7671 | 4969 | /** |
bbb9d180 JS |
4970 | * lpfc_send_taskmgmt - Generic SCSI Task Mgmt Handler |
4971 | * @vport: The virtual port for which this call is being executed. | |
4972 | * @rdata: Pointer to remote port local data | |
4973 | * @tgt_id: Target ID of remote device. | |
4974 | * @lun_id: Lun number for the TMF | |
4975 | * @task_mgmt_cmd: type of TMF to send | |
9bad7671 | 4976 | * |
bbb9d180 JS |
4977 | * This routine builds and sends a TMF (SCSI Task Mgmt Function) to |
4978 | * a remote port. | |
9bad7671 | 4979 | * |
bbb9d180 JS |
4980 | * Return Code: |
4981 | * 0x2003 - Error | |
4982 | * 0x2002 - Success. | |
9bad7671 | 4983 | **/ |
dea3101e | 4984 | static int |
eed695d7 JS |
4985 | lpfc_send_taskmgmt(struct lpfc_vport *vport, struct scsi_cmnd *cmnd, |
4986 | unsigned int tgt_id, uint64_t lun_id, | |
4987 | uint8_t task_mgmt_cmd) | |
dea3101e | 4988 | { |
2e0fef85 | 4989 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 | 4990 | struct lpfc_scsi_buf *lpfc_cmd; |
bbb9d180 JS |
4991 | struct lpfc_iocbq *iocbq; |
4992 | struct lpfc_iocbq *iocbqrsp; | |
eed695d7 JS |
4993 | struct lpfc_rport_data *rdata; |
4994 | struct lpfc_nodelist *pnode; | |
bbb9d180 | 4995 | int ret; |
915caaaf | 4996 | int status; |
dea3101e | 4997 | |
eed695d7 JS |
4998 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
4999 | if (!rdata || !rdata->pnode || !NLP_CHK_NODE_ACT(rdata->pnode)) | |
915caaaf | 5000 | return FAILED; |
eed695d7 | 5001 | pnode = rdata->pnode; |
bbb9d180 | 5002 | |
eed695d7 | 5003 | lpfc_cmd = lpfc_get_scsi_buf(phba, pnode); |
dea3101e | 5004 | if (lpfc_cmd == NULL) |
915caaaf | 5005 | return FAILED; |
0c411222 | 5006 | lpfc_cmd->timeout = phba->cfg_task_mgmt_tmo; |
0b18ac42 | 5007 | lpfc_cmd->rdata = rdata; |
eed695d7 | 5008 | lpfc_cmd->pCmd = cmnd; |
dea3101e | 5009 | |
bbb9d180 JS |
5010 | status = lpfc_scsi_prep_task_mgmt_cmd(vport, lpfc_cmd, lun_id, |
5011 | task_mgmt_cmd); | |
915caaaf JS |
5012 | if (!status) { |
5013 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
5014 | return FAILED; | |
5015 | } | |
dea3101e | 5016 | |
bbb9d180 | 5017 | iocbq = &lpfc_cmd->cur_iocbq; |
0bd4ca25 | 5018 | iocbqrsp = lpfc_sli_get_iocbq(phba); |
915caaaf JS |
5019 | if (iocbqrsp == NULL) { |
5020 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
5021 | return FAILED; | |
5022 | } | |
5a0916b4 | 5023 | iocbq->iocb_cmpl = lpfc_tskmgmt_def_cmpl; |
bbb9d180 | 5024 | |
e8b62011 | 5025 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, |
9cb78c16 | 5026 | "0702 Issue %s to TGT %d LUN %llu " |
6d368e53 | 5027 | "rpi x%x nlp_flag x%x Data: x%x x%x\n", |
bbb9d180 | 5028 | lpfc_taskmgmt_name(task_mgmt_cmd), tgt_id, lun_id, |
6d368e53 JS |
5029 | pnode->nlp_rpi, pnode->nlp_flag, iocbq->sli4_xritag, |
5030 | iocbq->iocb_flag); | |
bbb9d180 | 5031 | |
3772a991 | 5032 | status = lpfc_sli_issue_iocb_wait(phba, LPFC_FCP_RING, |
915caaaf | 5033 | iocbq, iocbqrsp, lpfc_cmd->timeout); |
53151bbb JS |
5034 | if ((status != IOCB_SUCCESS) || |
5035 | (iocbqrsp->iocb.ulpStatus != IOSTAT_SUCCESS)) { | |
ae374a30 JS |
5036 | if (status != IOCB_SUCCESS || |
5037 | iocbqrsp->iocb.ulpStatus != IOSTAT_FCP_RSP_ERROR) | |
5038 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
5039 | "0727 TMF %s to TGT %d LUN %llu " | |
5040 | "failed (%d, %d) iocb_flag x%x\n", | |
5041 | lpfc_taskmgmt_name(task_mgmt_cmd), | |
5042 | tgt_id, lun_id, | |
5043 | iocbqrsp->iocb.ulpStatus, | |
5044 | iocbqrsp->iocb.un.ulpWord[4], | |
5045 | iocbq->iocb_flag); | |
53151bbb JS |
5046 | /* if ulpStatus != IOCB_SUCCESS, then status == IOCB_SUCCESS */ |
5047 | if (status == IOCB_SUCCESS) { | |
5048 | if (iocbqrsp->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR) | |
5049 | /* Something in the FCP_RSP was invalid. | |
5050 | * Check conditions */ | |
5051 | ret = lpfc_check_fcp_rsp(vport, lpfc_cmd); | |
5052 | else | |
5053 | ret = FAILED; | |
5054 | } else if (status == IOCB_TIMEDOUT) { | |
5055 | ret = TIMEOUT_ERROR; | |
5056 | } else { | |
5057 | ret = FAILED; | |
5058 | } | |
53151bbb | 5059 | } else |
bbb9d180 JS |
5060 | ret = SUCCESS; |
5061 | ||
6175c02a | 5062 | lpfc_sli_release_iocbq(phba, iocbqrsp); |
bbb9d180 JS |
5063 | |
5064 | if (ret != TIMEOUT_ERROR) | |
5065 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
5066 | ||
5067 | return ret; | |
5068 | } | |
5069 | ||
5070 | /** | |
5071 | * lpfc_chk_tgt_mapped - | |
5072 | * @vport: The virtual port to check on | |
5073 | * @cmnd: Pointer to scsi_cmnd data structure. | |
5074 | * | |
5075 | * This routine delays until the scsi target (aka rport) for the | |
5076 | * command exists (is present and logged in) or we declare it non-existent. | |
5077 | * | |
5078 | * Return code : | |
5079 | * 0x2003 - Error | |
5080 | * 0x2002 - Success | |
5081 | **/ | |
5082 | static int | |
5083 | lpfc_chk_tgt_mapped(struct lpfc_vport *vport, struct scsi_cmnd *cmnd) | |
5084 | { | |
1ba981fd | 5085 | struct lpfc_rport_data *rdata; |
1c6f4ef5 | 5086 | struct lpfc_nodelist *pnode; |
bbb9d180 JS |
5087 | unsigned long later; |
5088 | ||
1ba981fd | 5089 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
1c6f4ef5 JS |
5090 | if (!rdata) { |
5091 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
5092 | "0797 Tgt Map rport failure: rdata x%p\n", rdata); | |
5093 | return FAILED; | |
5094 | } | |
5095 | pnode = rdata->pnode; | |
bbb9d180 JS |
5096 | /* |
5097 | * If target is not in a MAPPED state, delay until | |
5098 | * target is rediscovered or devloss timeout expires. | |
5099 | */ | |
5100 | later = msecs_to_jiffies(2 * vport->cfg_devloss_tmo * 1000) + jiffies; | |
5101 | while (time_after(later, jiffies)) { | |
5102 | if (!pnode || !NLP_CHK_NODE_ACT(pnode)) | |
5103 | return FAILED; | |
5104 | if (pnode->nlp_state == NLP_STE_MAPPED_NODE) | |
5105 | return SUCCESS; | |
5106 | schedule_timeout_uninterruptible(msecs_to_jiffies(500)); | |
1ba981fd | 5107 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
bbb9d180 JS |
5108 | if (!rdata) |
5109 | return FAILED; | |
5110 | pnode = rdata->pnode; | |
5111 | } | |
5112 | if (!pnode || !NLP_CHK_NODE_ACT(pnode) || | |
5113 | (pnode->nlp_state != NLP_STE_MAPPED_NODE)) | |
5114 | return FAILED; | |
5115 | return SUCCESS; | |
5116 | } | |
5117 | ||
5118 | /** | |
5119 | * lpfc_reset_flush_io_context - | |
5120 | * @vport: The virtual port (scsi_host) for the flush context | |
5121 | * @tgt_id: If aborting by Target contect - specifies the target id | |
5122 | * @lun_id: If aborting by Lun context - specifies the lun id | |
5123 | * @context: specifies the context level to flush at. | |
5124 | * | |
5125 | * After a reset condition via TMF, we need to flush orphaned i/o | |
5126 | * contexts from the adapter. This routine aborts any contexts | |
5127 | * outstanding, then waits for their completions. The wait is | |
5128 | * bounded by devloss_tmo though. | |
5129 | * | |
5130 | * Return code : | |
5131 | * 0x2003 - Error | |
5132 | * 0x2002 - Success | |
5133 | **/ | |
5134 | static int | |
5135 | lpfc_reset_flush_io_context(struct lpfc_vport *vport, uint16_t tgt_id, | |
5136 | uint64_t lun_id, lpfc_ctx_cmd context) | |
5137 | { | |
5138 | struct lpfc_hba *phba = vport->phba; | |
5139 | unsigned long later; | |
5140 | int cnt; | |
5141 | ||
5142 | cnt = lpfc_sli_sum_iocb(vport, tgt_id, lun_id, context); | |
6175c02a | 5143 | if (cnt) |
98912dda | 5144 | lpfc_sli_abort_taskmgmt(vport, |
895427bd | 5145 | &phba->sli.sli3_ring[LPFC_FCP_RING], |
98912dda | 5146 | tgt_id, lun_id, context); |
915caaaf JS |
5147 | later = msecs_to_jiffies(2 * vport->cfg_devloss_tmo * 1000) + jiffies; |
5148 | while (time_after(later, jiffies) && cnt) { | |
5149 | schedule_timeout_uninterruptible(msecs_to_jiffies(20)); | |
bbb9d180 | 5150 | cnt = lpfc_sli_sum_iocb(vport, tgt_id, lun_id, context); |
dea3101e | 5151 | } |
dea3101e | 5152 | if (cnt) { |
e8b62011 | 5153 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
bbb9d180 JS |
5154 | "0724 I/O flush failure for context %s : cnt x%x\n", |
5155 | ((context == LPFC_CTX_LUN) ? "LUN" : | |
5156 | ((context == LPFC_CTX_TGT) ? "TGT" : | |
5157 | ((context == LPFC_CTX_HOST) ? "HOST" : "Unknown"))), | |
5158 | cnt); | |
5159 | return FAILED; | |
dea3101e | 5160 | } |
bbb9d180 JS |
5161 | return SUCCESS; |
5162 | } | |
5163 | ||
5164 | /** | |
5165 | * lpfc_device_reset_handler - scsi_host_template eh_device_reset entry point | |
5166 | * @cmnd: Pointer to scsi_cmnd data structure. | |
5167 | * | |
5168 | * This routine does a device reset by sending a LUN_RESET task management | |
5169 | * command. | |
5170 | * | |
5171 | * Return code : | |
5172 | * 0x2003 - Error | |
5173 | * 0x2002 - Success | |
5174 | **/ | |
5175 | static int | |
5176 | lpfc_device_reset_handler(struct scsi_cmnd *cmnd) | |
5177 | { | |
5178 | struct Scsi_Host *shost = cmnd->device->host; | |
5179 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
1ba981fd | 5180 | struct lpfc_rport_data *rdata; |
1c6f4ef5 | 5181 | struct lpfc_nodelist *pnode; |
bbb9d180 | 5182 | unsigned tgt_id = cmnd->device->id; |
9cb78c16 | 5183 | uint64_t lun_id = cmnd->device->lun; |
bbb9d180 | 5184 | struct lpfc_scsi_event_header scsi_event; |
53151bbb | 5185 | int status; |
bbb9d180 | 5186 | |
1ba981fd | 5187 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
ad490b6e | 5188 | if (!rdata || !rdata->pnode) { |
1c6f4ef5 | 5189 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
ad490b6e JS |
5190 | "0798 Device Reset rport failure: rdata x%p\n", |
5191 | rdata); | |
1c6f4ef5 JS |
5192 | return FAILED; |
5193 | } | |
5194 | pnode = rdata->pnode; | |
589a52d6 | 5195 | status = fc_block_scsi_eh(cmnd); |
908e18e4 | 5196 | if (status != 0 && status != SUCCESS) |
589a52d6 | 5197 | return status; |
bbb9d180 JS |
5198 | |
5199 | status = lpfc_chk_tgt_mapped(vport, cmnd); | |
5200 | if (status == FAILED) { | |
5201 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
5202 | "0721 Device Reset rport failure: rdata x%p\n", rdata); | |
5203 | return FAILED; | |
5204 | } | |
5205 | ||
5206 | scsi_event.event_type = FC_REG_SCSI_EVENT; | |
5207 | scsi_event.subcategory = LPFC_EVENT_LUNRESET; | |
5208 | scsi_event.lun = lun_id; | |
5209 | memcpy(scsi_event.wwpn, &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
5210 | memcpy(scsi_event.wwnn, &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
5211 | ||
5212 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
5213 | sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID); | |
5214 | ||
eed695d7 | 5215 | status = lpfc_send_taskmgmt(vport, cmnd, tgt_id, lun_id, |
bbb9d180 JS |
5216 | FCP_LUN_RESET); |
5217 | ||
5218 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
9cb78c16 | 5219 | "0713 SCSI layer issued Device Reset (%d, %llu) " |
bbb9d180 JS |
5220 | "return x%x\n", tgt_id, lun_id, status); |
5221 | ||
5222 | /* | |
5223 | * We have to clean up i/o as : they may be orphaned by the TMF; | |
5224 | * or if the TMF failed, they may be in an indeterminate state. | |
5225 | * So, continue on. | |
5226 | * We will report success if all the i/o aborts successfully. | |
5227 | */ | |
53151bbb JS |
5228 | if (status == SUCCESS) |
5229 | status = lpfc_reset_flush_io_context(vport, tgt_id, lun_id, | |
bbb9d180 | 5230 | LPFC_CTX_LUN); |
53151bbb JS |
5231 | |
5232 | return status; | |
bbb9d180 JS |
5233 | } |
5234 | ||
5235 | /** | |
5236 | * lpfc_target_reset_handler - scsi_host_template eh_target_reset entry point | |
5237 | * @cmnd: Pointer to scsi_cmnd data structure. | |
5238 | * | |
5239 | * This routine does a target reset by sending a TARGET_RESET task management | |
5240 | * command. | |
5241 | * | |
5242 | * Return code : | |
5243 | * 0x2003 - Error | |
5244 | * 0x2002 - Success | |
5245 | **/ | |
5246 | static int | |
5247 | lpfc_target_reset_handler(struct scsi_cmnd *cmnd) | |
5248 | { | |
5249 | struct Scsi_Host *shost = cmnd->device->host; | |
5250 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
1ba981fd | 5251 | struct lpfc_rport_data *rdata; |
1c6f4ef5 | 5252 | struct lpfc_nodelist *pnode; |
bbb9d180 | 5253 | unsigned tgt_id = cmnd->device->id; |
9cb78c16 | 5254 | uint64_t lun_id = cmnd->device->lun; |
bbb9d180 | 5255 | struct lpfc_scsi_event_header scsi_event; |
53151bbb | 5256 | int status; |
bbb9d180 | 5257 | |
1ba981fd | 5258 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
1c6f4ef5 JS |
5259 | if (!rdata) { |
5260 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
5261 | "0799 Target Reset rport failure: rdata x%p\n", rdata); | |
5262 | return FAILED; | |
5263 | } | |
5264 | pnode = rdata->pnode; | |
589a52d6 | 5265 | status = fc_block_scsi_eh(cmnd); |
908e18e4 | 5266 | if (status != 0 && status != SUCCESS) |
589a52d6 | 5267 | return status; |
bbb9d180 JS |
5268 | |
5269 | status = lpfc_chk_tgt_mapped(vport, cmnd); | |
5270 | if (status == FAILED) { | |
5271 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
5272 | "0722 Target Reset rport failure: rdata x%p\n", rdata); | |
63e480fd JS |
5273 | if (pnode) { |
5274 | spin_lock_irq(shost->host_lock); | |
5275 | pnode->nlp_flag &= ~NLP_NPR_ADISC; | |
5276 | pnode->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; | |
5277 | spin_unlock_irq(shost->host_lock); | |
5278 | } | |
8c50d25c JS |
5279 | lpfc_reset_flush_io_context(vport, tgt_id, lun_id, |
5280 | LPFC_CTX_TGT); | |
5281 | return FAST_IO_FAIL; | |
bbb9d180 JS |
5282 | } |
5283 | ||
5284 | scsi_event.event_type = FC_REG_SCSI_EVENT; | |
5285 | scsi_event.subcategory = LPFC_EVENT_TGTRESET; | |
5286 | scsi_event.lun = 0; | |
5287 | memcpy(scsi_event.wwpn, &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
5288 | memcpy(scsi_event.wwnn, &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
5289 | ||
5290 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
5291 | sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID); | |
5292 | ||
eed695d7 | 5293 | status = lpfc_send_taskmgmt(vport, cmnd, tgt_id, lun_id, |
bbb9d180 JS |
5294 | FCP_TARGET_RESET); |
5295 | ||
5296 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
9cb78c16 | 5297 | "0723 SCSI layer issued Target Reset (%d, %llu) " |
bbb9d180 JS |
5298 | "return x%x\n", tgt_id, lun_id, status); |
5299 | ||
5300 | /* | |
5301 | * We have to clean up i/o as : they may be orphaned by the TMF; | |
5302 | * or if the TMF failed, they may be in an indeterminate state. | |
5303 | * So, continue on. | |
5304 | * We will report success if all the i/o aborts successfully. | |
5305 | */ | |
53151bbb JS |
5306 | if (status == SUCCESS) |
5307 | status = lpfc_reset_flush_io_context(vport, tgt_id, lun_id, | |
3a70730a | 5308 | LPFC_CTX_TGT); |
53151bbb | 5309 | return status; |
dea3101e | 5310 | } |
5311 | ||
9bad7671 | 5312 | /** |
3621a710 | 5313 | * lpfc_bus_reset_handler - scsi_host_template eh_bus_reset_handler entry point |
9bad7671 JS |
5314 | * @cmnd: Pointer to scsi_cmnd data structure. |
5315 | * | |
bbb9d180 JS |
5316 | * This routine does target reset to all targets on @cmnd->device->host. |
5317 | * This emulates Parallel SCSI Bus Reset Semantics. | |
9bad7671 | 5318 | * |
bbb9d180 JS |
5319 | * Return code : |
5320 | * 0x2003 - Error | |
5321 | * 0x2002 - Success | |
9bad7671 | 5322 | **/ |
94d0e7b8 | 5323 | static int |
7054a606 | 5324 | lpfc_bus_reset_handler(struct scsi_cmnd *cmnd) |
dea3101e | 5325 | { |
2e0fef85 JS |
5326 | struct Scsi_Host *shost = cmnd->device->host; |
5327 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
dea3101e | 5328 | struct lpfc_nodelist *ndlp = NULL; |
ea2151b4 | 5329 | struct lpfc_scsi_event_header scsi_event; |
bbb9d180 JS |
5330 | int match; |
5331 | int ret = SUCCESS, status, i; | |
ea2151b4 JS |
5332 | |
5333 | scsi_event.event_type = FC_REG_SCSI_EVENT; | |
5334 | scsi_event.subcategory = LPFC_EVENT_BUSRESET; | |
5335 | scsi_event.lun = 0; | |
5336 | memcpy(scsi_event.wwpn, &vport->fc_portname, sizeof(struct lpfc_name)); | |
5337 | memcpy(scsi_event.wwnn, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
5338 | ||
bbb9d180 JS |
5339 | fc_host_post_vendor_event(shost, fc_get_event_number(), |
5340 | sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID); | |
dea3101e | 5341 | |
bf08611b | 5342 | status = fc_block_scsi_eh(cmnd); |
908e18e4 | 5343 | if (status != 0 && status != SUCCESS) |
bf08611b | 5344 | return status; |
bbb9d180 | 5345 | |
dea3101e | 5346 | /* |
5347 | * Since the driver manages a single bus device, reset all | |
5348 | * targets known to the driver. Should any target reset | |
5349 | * fail, this routine returns failure to the midlayer. | |
5350 | */ | |
e17da18e | 5351 | for (i = 0; i < LPFC_MAX_TARGET; i++) { |
685f0bf7 | 5352 | /* Search for mapped node by target ID */ |
dea3101e | 5353 | match = 0; |
2e0fef85 JS |
5354 | spin_lock_irq(shost->host_lock); |
5355 | list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { | |
e47c9093 JS |
5356 | if (!NLP_CHK_NODE_ACT(ndlp)) |
5357 | continue; | |
a6571c6e JS |
5358 | if (vport->phba->cfg_fcp2_no_tgt_reset && |
5359 | (ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE)) | |
5360 | continue; | |
685f0bf7 | 5361 | if (ndlp->nlp_state == NLP_STE_MAPPED_NODE && |
915caaaf | 5362 | ndlp->nlp_sid == i && |
a0f2d3ef JS |
5363 | ndlp->rport && |
5364 | ndlp->nlp_type & NLP_FCP_TARGET) { | |
dea3101e | 5365 | match = 1; |
5366 | break; | |
5367 | } | |
5368 | } | |
2e0fef85 | 5369 | spin_unlock_irq(shost->host_lock); |
dea3101e | 5370 | if (!match) |
5371 | continue; | |
bbb9d180 | 5372 | |
eed695d7 | 5373 | status = lpfc_send_taskmgmt(vport, cmnd, |
bbb9d180 JS |
5374 | i, 0, FCP_TARGET_RESET); |
5375 | ||
5376 | if (status != SUCCESS) { | |
e8b62011 JS |
5377 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
5378 | "0700 Bus Reset on target %d failed\n", | |
5379 | i); | |
915caaaf | 5380 | ret = FAILED; |
dea3101e | 5381 | } |
5382 | } | |
6175c02a | 5383 | /* |
bbb9d180 JS |
5384 | * We have to clean up i/o as : they may be orphaned by the TMFs |
5385 | * above; or if any of the TMFs failed, they may be in an | |
5386 | * indeterminate state. | |
5387 | * We will report success if all the i/o aborts successfully. | |
6175c02a | 5388 | */ |
bbb9d180 JS |
5389 | |
5390 | status = lpfc_reset_flush_io_context(vport, 0, 0, LPFC_CTX_HOST); | |
5391 | if (status != SUCCESS) | |
0bd4ca25 | 5392 | ret = FAILED; |
bbb9d180 | 5393 | |
e8b62011 JS |
5394 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
5395 | "0714 SCSI layer issued Bus Reset Data: x%x\n", ret); | |
dea3101e | 5396 | return ret; |
5397 | } | |
5398 | ||
27b01b82 JS |
5399 | /** |
5400 | * lpfc_host_reset_handler - scsi_host_template eh_host_reset_handler entry pt | |
5401 | * @cmnd: Pointer to scsi_cmnd data structure. | |
5402 | * | |
5403 | * This routine does host reset to the adaptor port. It brings the HBA | |
5404 | * offline, performs a board restart, and then brings the board back online. | |
5405 | * The lpfc_offline calls lpfc_sli_hba_down which will abort and local | |
5406 | * reject all outstanding SCSI commands to the host and error returned | |
5407 | * back to SCSI mid-level. As this will be SCSI mid-level's last resort | |
5408 | * of error handling, it will only return error if resetting of the adapter | |
5409 | * is not successful; in all other cases, will return success. | |
5410 | * | |
5411 | * Return code : | |
5412 | * 0x2003 - Error | |
5413 | * 0x2002 - Success | |
5414 | **/ | |
5415 | static int | |
5416 | lpfc_host_reset_handler(struct scsi_cmnd *cmnd) | |
5417 | { | |
5418 | struct Scsi_Host *shost = cmnd->device->host; | |
5419 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
5420 | struct lpfc_hba *phba = vport->phba; | |
5421 | int rc, ret = SUCCESS; | |
5422 | ||
a88dbb6a JS |
5423 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
5424 | "3172 SCSI layer issued Host Reset Data:\n"); | |
5425 | ||
618a5230 | 5426 | lpfc_offline_prep(phba, LPFC_MBX_WAIT); |
27b01b82 JS |
5427 | lpfc_offline(phba); |
5428 | rc = lpfc_sli_brdrestart(phba); | |
5429 | if (rc) | |
5430 | ret = FAILED; | |
a88dbb6a JS |
5431 | rc = lpfc_online(phba); |
5432 | if (rc) | |
5433 | ret = FAILED; | |
27b01b82 JS |
5434 | lpfc_unblock_mgmt_io(phba); |
5435 | ||
a88dbb6a JS |
5436 | if (ret == FAILED) { |
5437 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
5438 | "3323 Failed host reset, bring it offline\n"); | |
5439 | lpfc_sli4_offline_eratt(phba); | |
5440 | } | |
27b01b82 JS |
5441 | return ret; |
5442 | } | |
5443 | ||
9bad7671 | 5444 | /** |
3621a710 | 5445 | * lpfc_slave_alloc - scsi_host_template slave_alloc entry point |
9bad7671 JS |
5446 | * @sdev: Pointer to scsi_device. |
5447 | * | |
5448 | * This routine populates the cmds_per_lun count + 2 scsi_bufs into this host's | |
5449 | * globally available list of scsi buffers. This routine also makes sure scsi | |
5450 | * buffer is not allocated more than HBA limit conveyed to midlayer. This list | |
5451 | * of scsi buffer exists for the lifetime of the driver. | |
5452 | * | |
5453 | * Return codes: | |
5454 | * non-0 - Error | |
5455 | * 0 - Success | |
5456 | **/ | |
dea3101e | 5457 | static int |
5458 | lpfc_slave_alloc(struct scsi_device *sdev) | |
5459 | { | |
2e0fef85 JS |
5460 | struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; |
5461 | struct lpfc_hba *phba = vport->phba; | |
19a7b4ae | 5462 | struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); |
3772a991 | 5463 | uint32_t total = 0; |
dea3101e | 5464 | uint32_t num_to_alloc = 0; |
3772a991 | 5465 | int num_allocated = 0; |
d7c47992 | 5466 | uint32_t sdev_cnt; |
1ba981fd JS |
5467 | struct lpfc_device_data *device_data; |
5468 | unsigned long flags; | |
5469 | struct lpfc_name target_wwpn; | |
dea3101e | 5470 | |
19a7b4ae | 5471 | if (!rport || fc_remote_port_chkready(rport)) |
dea3101e | 5472 | return -ENXIO; |
5473 | ||
f38fa0bb | 5474 | if (phba->cfg_fof) { |
1ba981fd JS |
5475 | |
5476 | /* | |
5477 | * Check to see if the device data structure for the lun | |
5478 | * exists. If not, create one. | |
5479 | */ | |
5480 | ||
5481 | u64_to_wwn(rport->port_name, target_wwpn.u.wwn); | |
5482 | spin_lock_irqsave(&phba->devicelock, flags); | |
5483 | device_data = __lpfc_get_device_data(phba, | |
5484 | &phba->luns, | |
5485 | &vport->fc_portname, | |
5486 | &target_wwpn, | |
5487 | sdev->lun); | |
5488 | if (!device_data) { | |
5489 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5490 | device_data = lpfc_create_device_data(phba, | |
5491 | &vport->fc_portname, | |
5492 | &target_wwpn, | |
b5749fe1 JS |
5493 | sdev->lun, |
5494 | phba->cfg_XLanePriority, | |
5495 | true); | |
1ba981fd JS |
5496 | if (!device_data) |
5497 | return -ENOMEM; | |
5498 | spin_lock_irqsave(&phba->devicelock, flags); | |
5499 | list_add_tail(&device_data->listentry, &phba->luns); | |
5500 | } | |
5501 | device_data->rport_data = rport->dd_data; | |
5502 | device_data->available = true; | |
5503 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5504 | sdev->hostdata = device_data; | |
5505 | } else { | |
5506 | sdev->hostdata = rport->dd_data; | |
5507 | } | |
d7c47992 | 5508 | sdev_cnt = atomic_inc_return(&phba->sdev_cnt); |
dea3101e | 5509 | |
5510 | /* | |
5511 | * Populate the cmds_per_lun count scsi_bufs into this host's globally | |
5512 | * available list of scsi buffers. Don't allocate more than the | |
a784efbf JSEC |
5513 | * HBA limit conveyed to the midlayer via the host structure. The |
5514 | * formula accounts for the lun_queue_depth + error handlers + 1 | |
5515 | * extra. This list of scsi bufs exists for the lifetime of the driver. | |
dea3101e | 5516 | */ |
5517 | total = phba->total_scsi_bufs; | |
3de2a653 | 5518 | num_to_alloc = vport->cfg_lun_queue_depth + 2; |
92d7f7b0 | 5519 | |
d7c47992 JS |
5520 | /* If allocated buffers are enough do nothing */ |
5521 | if ((sdev_cnt * (vport->cfg_lun_queue_depth + 2)) < total) | |
5522 | return 0; | |
5523 | ||
92d7f7b0 JS |
5524 | /* Allow some exchanges to be available always to complete discovery */ |
5525 | if (total >= phba->cfg_hba_queue_depth - LPFC_DISC_IOCB_BUFF_COUNT ) { | |
e8b62011 JS |
5526 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
5527 | "0704 At limitation of %d preallocated " | |
5528 | "command buffers\n", total); | |
dea3101e | 5529 | return 0; |
92d7f7b0 JS |
5530 | /* Allow some exchanges to be available always to complete discovery */ |
5531 | } else if (total + num_to_alloc > | |
5532 | phba->cfg_hba_queue_depth - LPFC_DISC_IOCB_BUFF_COUNT ) { | |
e8b62011 JS |
5533 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
5534 | "0705 Allocation request of %d " | |
5535 | "command buffers will exceed max of %d. " | |
5536 | "Reducing allocation request to %d.\n", | |
5537 | num_to_alloc, phba->cfg_hba_queue_depth, | |
5538 | (phba->cfg_hba_queue_depth - total)); | |
dea3101e | 5539 | num_to_alloc = phba->cfg_hba_queue_depth - total; |
5540 | } | |
3772a991 JS |
5541 | num_allocated = lpfc_new_scsi_buf(vport, num_to_alloc); |
5542 | if (num_to_alloc != num_allocated) { | |
96f7077f JS |
5543 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
5544 | "0708 Allocation request of %d " | |
5545 | "command buffers did not succeed. " | |
5546 | "Allocated %d buffers.\n", | |
5547 | num_to_alloc, num_allocated); | |
dea3101e | 5548 | } |
1c6f4ef5 JS |
5549 | if (num_allocated > 0) |
5550 | phba->total_scsi_bufs += num_allocated; | |
dea3101e | 5551 | return 0; |
5552 | } | |
5553 | ||
9bad7671 | 5554 | /** |
3621a710 | 5555 | * lpfc_slave_configure - scsi_host_template slave_configure entry point |
9bad7671 JS |
5556 | * @sdev: Pointer to scsi_device. |
5557 | * | |
5558 | * This routine configures following items | |
5559 | * - Tag command queuing support for @sdev if supported. | |
9bad7671 JS |
5560 | * - Enable SLI polling for fcp ring if ENABLE_FCP_RING_POLLING flag is set. |
5561 | * | |
5562 | * Return codes: | |
5563 | * 0 - Success | |
5564 | **/ | |
dea3101e | 5565 | static int |
5566 | lpfc_slave_configure(struct scsi_device *sdev) | |
5567 | { | |
2e0fef85 JS |
5568 | struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; |
5569 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 5570 | |
db5ed4df | 5571 | scsi_change_queue_depth(sdev, vport->cfg_lun_queue_depth); |
dea3101e | 5572 | |
875fbdfe | 5573 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { |
45ed1190 | 5574 | lpfc_sli_handle_fast_ring_event(phba, |
895427bd | 5575 | &phba->sli.sli3_ring[LPFC_FCP_RING], HA_R0RE_REQ); |
875fbdfe JSEC |
5576 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
5577 | lpfc_poll_rearm_timer(phba); | |
5578 | } | |
5579 | ||
dea3101e | 5580 | return 0; |
5581 | } | |
5582 | ||
9bad7671 | 5583 | /** |
3621a710 | 5584 | * lpfc_slave_destroy - slave_destroy entry point of SHT data structure |
9bad7671 JS |
5585 | * @sdev: Pointer to scsi_device. |
5586 | * | |
5587 | * This routine sets @sdev hostatdata filed to null. | |
5588 | **/ | |
dea3101e | 5589 | static void |
5590 | lpfc_slave_destroy(struct scsi_device *sdev) | |
5591 | { | |
d7c47992 JS |
5592 | struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; |
5593 | struct lpfc_hba *phba = vport->phba; | |
1ba981fd JS |
5594 | unsigned long flags; |
5595 | struct lpfc_device_data *device_data = sdev->hostdata; | |
5596 | ||
d7c47992 | 5597 | atomic_dec(&phba->sdev_cnt); |
f38fa0bb | 5598 | if ((phba->cfg_fof) && (device_data)) { |
1ba981fd JS |
5599 | spin_lock_irqsave(&phba->devicelock, flags); |
5600 | device_data->available = false; | |
5601 | if (!device_data->oas_enabled) | |
5602 | lpfc_delete_device_data(phba, device_data); | |
5603 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5604 | } | |
dea3101e | 5605 | sdev->hostdata = NULL; |
5606 | return; | |
5607 | } | |
5608 | ||
1ba981fd JS |
5609 | /** |
5610 | * lpfc_create_device_data - creates and initializes device data structure for OAS | |
5611 | * @pha: Pointer to host bus adapter structure. | |
5612 | * @vport_wwpn: Pointer to vport's wwpn information | |
5613 | * @target_wwpn: Pointer to target's wwpn information | |
5614 | * @lun: Lun on target | |
5615 | * @atomic_create: Flag to indicate if memory should be allocated using the | |
5616 | * GFP_ATOMIC flag or not. | |
5617 | * | |
5618 | * This routine creates a device data structure which will contain identifying | |
5619 | * information for the device (host wwpn, target wwpn, lun), state of OAS, | |
5620 | * whether or not the corresponding lun is available by the system, | |
5621 | * and pointer to the rport data. | |
5622 | * | |
5623 | * Return codes: | |
5624 | * NULL - Error | |
5625 | * Pointer to lpfc_device_data - Success | |
5626 | **/ | |
5627 | struct lpfc_device_data* | |
5628 | lpfc_create_device_data(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn, | |
5629 | struct lpfc_name *target_wwpn, uint64_t lun, | |
b5749fe1 | 5630 | uint32_t pri, bool atomic_create) |
1ba981fd JS |
5631 | { |
5632 | ||
5633 | struct lpfc_device_data *lun_info; | |
5634 | int memory_flags; | |
5635 | ||
5636 | if (unlikely(!phba) || !vport_wwpn || !target_wwpn || | |
f38fa0bb | 5637 | !(phba->cfg_fof)) |
1ba981fd JS |
5638 | return NULL; |
5639 | ||
5640 | /* Attempt to create the device data to contain lun info */ | |
5641 | ||
5642 | if (atomic_create) | |
5643 | memory_flags = GFP_ATOMIC; | |
5644 | else | |
5645 | memory_flags = GFP_KERNEL; | |
5646 | lun_info = mempool_alloc(phba->device_data_mem_pool, memory_flags); | |
5647 | if (!lun_info) | |
5648 | return NULL; | |
5649 | INIT_LIST_HEAD(&lun_info->listentry); | |
5650 | lun_info->rport_data = NULL; | |
5651 | memcpy(&lun_info->device_id.vport_wwpn, vport_wwpn, | |
5652 | sizeof(struct lpfc_name)); | |
5653 | memcpy(&lun_info->device_id.target_wwpn, target_wwpn, | |
5654 | sizeof(struct lpfc_name)); | |
5655 | lun_info->device_id.lun = lun; | |
5656 | lun_info->oas_enabled = false; | |
b5749fe1 | 5657 | lun_info->priority = pri; |
1ba981fd JS |
5658 | lun_info->available = false; |
5659 | return lun_info; | |
5660 | } | |
5661 | ||
5662 | /** | |
5663 | * lpfc_delete_device_data - frees a device data structure for OAS | |
5664 | * @pha: Pointer to host bus adapter structure. | |
5665 | * @lun_info: Pointer to device data structure to free. | |
5666 | * | |
5667 | * This routine frees the previously allocated device data structure passed. | |
5668 | * | |
5669 | **/ | |
5670 | void | |
5671 | lpfc_delete_device_data(struct lpfc_hba *phba, | |
5672 | struct lpfc_device_data *lun_info) | |
5673 | { | |
5674 | ||
5675 | if (unlikely(!phba) || !lun_info || | |
f38fa0bb | 5676 | !(phba->cfg_fof)) |
1ba981fd JS |
5677 | return; |
5678 | ||
5679 | if (!list_empty(&lun_info->listentry)) | |
5680 | list_del(&lun_info->listentry); | |
5681 | mempool_free(lun_info, phba->device_data_mem_pool); | |
5682 | return; | |
5683 | } | |
5684 | ||
5685 | /** | |
5686 | * __lpfc_get_device_data - returns the device data for the specified lun | |
5687 | * @pha: Pointer to host bus adapter structure. | |
5688 | * @list: Point to list to search. | |
5689 | * @vport_wwpn: Pointer to vport's wwpn information | |
5690 | * @target_wwpn: Pointer to target's wwpn information | |
5691 | * @lun: Lun on target | |
5692 | * | |
5693 | * This routine searches the list passed for the specified lun's device data. | |
5694 | * This function does not hold locks, it is the responsibility of the caller | |
5695 | * to ensure the proper lock is held before calling the function. | |
5696 | * | |
5697 | * Return codes: | |
5698 | * NULL - Error | |
5699 | * Pointer to lpfc_device_data - Success | |
5700 | **/ | |
5701 | struct lpfc_device_data* | |
5702 | __lpfc_get_device_data(struct lpfc_hba *phba, struct list_head *list, | |
5703 | struct lpfc_name *vport_wwpn, | |
5704 | struct lpfc_name *target_wwpn, uint64_t lun) | |
5705 | { | |
5706 | ||
5707 | struct lpfc_device_data *lun_info; | |
5708 | ||
5709 | if (unlikely(!phba) || !list || !vport_wwpn || !target_wwpn || | |
f38fa0bb | 5710 | !phba->cfg_fof) |
1ba981fd JS |
5711 | return NULL; |
5712 | ||
5713 | /* Check to see if the lun is already enabled for OAS. */ | |
5714 | ||
5715 | list_for_each_entry(lun_info, list, listentry) { | |
5716 | if ((memcmp(&lun_info->device_id.vport_wwpn, vport_wwpn, | |
5717 | sizeof(struct lpfc_name)) == 0) && | |
5718 | (memcmp(&lun_info->device_id.target_wwpn, target_wwpn, | |
5719 | sizeof(struct lpfc_name)) == 0) && | |
5720 | (lun_info->device_id.lun == lun)) | |
5721 | return lun_info; | |
5722 | } | |
5723 | ||
5724 | return NULL; | |
5725 | } | |
5726 | ||
5727 | /** | |
5728 | * lpfc_find_next_oas_lun - searches for the next oas lun | |
5729 | * @pha: Pointer to host bus adapter structure. | |
5730 | * @vport_wwpn: Pointer to vport's wwpn information | |
5731 | * @target_wwpn: Pointer to target's wwpn information | |
5732 | * @starting_lun: Pointer to the lun to start searching for | |
5733 | * @found_vport_wwpn: Pointer to the found lun's vport wwpn information | |
5734 | * @found_target_wwpn: Pointer to the found lun's target wwpn information | |
5735 | * @found_lun: Pointer to the found lun. | |
5736 | * @found_lun_status: Pointer to status of the found lun. | |
5737 | * | |
5738 | * This routine searches the luns list for the specified lun | |
5739 | * or the first lun for the vport/target. If the vport wwpn contains | |
5740 | * a zero value then a specific vport is not specified. In this case | |
5741 | * any vport which contains the lun will be considered a match. If the | |
5742 | * target wwpn contains a zero value then a specific target is not specified. | |
5743 | * In this case any target which contains the lun will be considered a | |
5744 | * match. If the lun is found, the lun, vport wwpn, target wwpn and lun status | |
5745 | * are returned. The function will also return the next lun if available. | |
5746 | * If the next lun is not found, starting_lun parameter will be set to | |
5747 | * NO_MORE_OAS_LUN. | |
5748 | * | |
5749 | * Return codes: | |
5750 | * non-0 - Error | |
5751 | * 0 - Success | |
5752 | **/ | |
5753 | bool | |
5754 | lpfc_find_next_oas_lun(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn, | |
5755 | struct lpfc_name *target_wwpn, uint64_t *starting_lun, | |
5756 | struct lpfc_name *found_vport_wwpn, | |
5757 | struct lpfc_name *found_target_wwpn, | |
5758 | uint64_t *found_lun, | |
b5749fe1 JS |
5759 | uint32_t *found_lun_status, |
5760 | uint32_t *found_lun_pri) | |
1ba981fd JS |
5761 | { |
5762 | ||
5763 | unsigned long flags; | |
5764 | struct lpfc_device_data *lun_info; | |
5765 | struct lpfc_device_id *device_id; | |
5766 | uint64_t lun; | |
5767 | bool found = false; | |
5768 | ||
5769 | if (unlikely(!phba) || !vport_wwpn || !target_wwpn || | |
5770 | !starting_lun || !found_vport_wwpn || | |
5771 | !found_target_wwpn || !found_lun || !found_lun_status || | |
5772 | (*starting_lun == NO_MORE_OAS_LUN) || | |
f38fa0bb | 5773 | !phba->cfg_fof) |
1ba981fd JS |
5774 | return false; |
5775 | ||
5776 | lun = *starting_lun; | |
5777 | *found_lun = NO_MORE_OAS_LUN; | |
5778 | *starting_lun = NO_MORE_OAS_LUN; | |
5779 | ||
5780 | /* Search for lun or the lun closet in value */ | |
5781 | ||
5782 | spin_lock_irqsave(&phba->devicelock, flags); | |
5783 | list_for_each_entry(lun_info, &phba->luns, listentry) { | |
5784 | if (((wwn_to_u64(vport_wwpn->u.wwn) == 0) || | |
5785 | (memcmp(&lun_info->device_id.vport_wwpn, vport_wwpn, | |
5786 | sizeof(struct lpfc_name)) == 0)) && | |
5787 | ((wwn_to_u64(target_wwpn->u.wwn) == 0) || | |
5788 | (memcmp(&lun_info->device_id.target_wwpn, target_wwpn, | |
5789 | sizeof(struct lpfc_name)) == 0)) && | |
5790 | (lun_info->oas_enabled)) { | |
5791 | device_id = &lun_info->device_id; | |
5792 | if ((!found) && | |
5793 | ((lun == FIND_FIRST_OAS_LUN) || | |
5794 | (device_id->lun == lun))) { | |
5795 | *found_lun = device_id->lun; | |
5796 | memcpy(found_vport_wwpn, | |
5797 | &device_id->vport_wwpn, | |
5798 | sizeof(struct lpfc_name)); | |
5799 | memcpy(found_target_wwpn, | |
5800 | &device_id->target_wwpn, | |
5801 | sizeof(struct lpfc_name)); | |
5802 | if (lun_info->available) | |
5803 | *found_lun_status = | |
5804 | OAS_LUN_STATUS_EXISTS; | |
5805 | else | |
5806 | *found_lun_status = 0; | |
b5749fe1 | 5807 | *found_lun_pri = lun_info->priority; |
1ba981fd JS |
5808 | if (phba->cfg_oas_flags & OAS_FIND_ANY_VPORT) |
5809 | memset(vport_wwpn, 0x0, | |
5810 | sizeof(struct lpfc_name)); | |
5811 | if (phba->cfg_oas_flags & OAS_FIND_ANY_TARGET) | |
5812 | memset(target_wwpn, 0x0, | |
5813 | sizeof(struct lpfc_name)); | |
5814 | found = true; | |
5815 | } else if (found) { | |
5816 | *starting_lun = device_id->lun; | |
5817 | memcpy(vport_wwpn, &device_id->vport_wwpn, | |
5818 | sizeof(struct lpfc_name)); | |
5819 | memcpy(target_wwpn, &device_id->target_wwpn, | |
5820 | sizeof(struct lpfc_name)); | |
5821 | break; | |
5822 | } | |
5823 | } | |
5824 | } | |
5825 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5826 | return found; | |
5827 | } | |
5828 | ||
5829 | /** | |
5830 | * lpfc_enable_oas_lun - enables a lun for OAS operations | |
5831 | * @pha: Pointer to host bus adapter structure. | |
5832 | * @vport_wwpn: Pointer to vport's wwpn information | |
5833 | * @target_wwpn: Pointer to target's wwpn information | |
5834 | * @lun: Lun | |
5835 | * | |
5836 | * This routine enables a lun for oas operations. The routines does so by | |
5837 | * doing the following : | |
5838 | * | |
5839 | * 1) Checks to see if the device data for the lun has been created. | |
5840 | * 2) If found, sets the OAS enabled flag if not set and returns. | |
5841 | * 3) Otherwise, creates a device data structure. | |
5842 | * 4) If successfully created, indicates the device data is for an OAS lun, | |
5843 | * indicates the lun is not available and add to the list of luns. | |
5844 | * | |
5845 | * Return codes: | |
5846 | * false - Error | |
5847 | * true - Success | |
5848 | **/ | |
5849 | bool | |
5850 | lpfc_enable_oas_lun(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn, | |
c92c841c | 5851 | struct lpfc_name *target_wwpn, uint64_t lun, uint8_t pri) |
1ba981fd JS |
5852 | { |
5853 | ||
5854 | struct lpfc_device_data *lun_info; | |
5855 | unsigned long flags; | |
5856 | ||
5857 | if (unlikely(!phba) || !vport_wwpn || !target_wwpn || | |
f38fa0bb | 5858 | !phba->cfg_fof) |
1ba981fd JS |
5859 | return false; |
5860 | ||
5861 | spin_lock_irqsave(&phba->devicelock, flags); | |
5862 | ||
5863 | /* Check to see if the device data for the lun has been created */ | |
5864 | lun_info = __lpfc_get_device_data(phba, &phba->luns, vport_wwpn, | |
5865 | target_wwpn, lun); | |
5866 | if (lun_info) { | |
5867 | if (!lun_info->oas_enabled) | |
5868 | lun_info->oas_enabled = true; | |
b5749fe1 | 5869 | lun_info->priority = pri; |
1ba981fd JS |
5870 | spin_unlock_irqrestore(&phba->devicelock, flags); |
5871 | return true; | |
5872 | } | |
5873 | ||
5874 | /* Create an lun info structure and add to list of luns */ | |
5875 | lun_info = lpfc_create_device_data(phba, vport_wwpn, target_wwpn, lun, | |
b5749fe1 | 5876 | pri, false); |
1ba981fd JS |
5877 | if (lun_info) { |
5878 | lun_info->oas_enabled = true; | |
c92c841c | 5879 | lun_info->priority = pri; |
1ba981fd JS |
5880 | lun_info->available = false; |
5881 | list_add_tail(&lun_info->listentry, &phba->luns); | |
5882 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5883 | return true; | |
5884 | } | |
5885 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5886 | return false; | |
5887 | } | |
5888 | ||
5889 | /** | |
5890 | * lpfc_disable_oas_lun - disables a lun for OAS operations | |
5891 | * @pha: Pointer to host bus adapter structure. | |
5892 | * @vport_wwpn: Pointer to vport's wwpn information | |
5893 | * @target_wwpn: Pointer to target's wwpn information | |
5894 | * @lun: Lun | |
5895 | * | |
5896 | * This routine disables a lun for oas operations. The routines does so by | |
5897 | * doing the following : | |
5898 | * | |
5899 | * 1) Checks to see if the device data for the lun is created. | |
5900 | * 2) If present, clears the flag indicating this lun is for OAS. | |
5901 | * 3) If the lun is not available by the system, the device data is | |
5902 | * freed. | |
5903 | * | |
5904 | * Return codes: | |
5905 | * false - Error | |
5906 | * true - Success | |
5907 | **/ | |
5908 | bool | |
5909 | lpfc_disable_oas_lun(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn, | |
b5749fe1 | 5910 | struct lpfc_name *target_wwpn, uint64_t lun, uint8_t pri) |
1ba981fd JS |
5911 | { |
5912 | ||
5913 | struct lpfc_device_data *lun_info; | |
5914 | unsigned long flags; | |
5915 | ||
5916 | if (unlikely(!phba) || !vport_wwpn || !target_wwpn || | |
f38fa0bb | 5917 | !phba->cfg_fof) |
1ba981fd JS |
5918 | return false; |
5919 | ||
5920 | spin_lock_irqsave(&phba->devicelock, flags); | |
5921 | ||
5922 | /* Check to see if the lun is available. */ | |
5923 | lun_info = __lpfc_get_device_data(phba, | |
5924 | &phba->luns, vport_wwpn, | |
5925 | target_wwpn, lun); | |
5926 | if (lun_info) { | |
5927 | lun_info->oas_enabled = false; | |
b5749fe1 | 5928 | lun_info->priority = pri; |
1ba981fd JS |
5929 | if (!lun_info->available) |
5930 | lpfc_delete_device_data(phba, lun_info); | |
5931 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5932 | return true; | |
5933 | } | |
5934 | ||
5935 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5936 | return false; | |
5937 | } | |
92d7f7b0 | 5938 | |
895427bd JS |
5939 | static int |
5940 | lpfc_no_command(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) | |
5941 | { | |
5942 | return SCSI_MLQUEUE_HOST_BUSY; | |
5943 | } | |
5944 | ||
5945 | static int | |
5946 | lpfc_no_handler(struct scsi_cmnd *cmnd) | |
5947 | { | |
5948 | return FAILED; | |
5949 | } | |
5950 | ||
5951 | static int | |
5952 | lpfc_no_slave(struct scsi_device *sdev) | |
5953 | { | |
5954 | return -ENODEV; | |
5955 | } | |
5956 | ||
5957 | struct scsi_host_template lpfc_template_nvme = { | |
5958 | .module = THIS_MODULE, | |
5959 | .name = LPFC_DRIVER_NAME, | |
5960 | .proc_name = LPFC_DRIVER_NAME, | |
5961 | .info = lpfc_info, | |
5962 | .queuecommand = lpfc_no_command, | |
5963 | .eh_abort_handler = lpfc_no_handler, | |
5964 | .eh_device_reset_handler = lpfc_no_handler, | |
5965 | .eh_target_reset_handler = lpfc_no_handler, | |
5966 | .eh_bus_reset_handler = lpfc_no_handler, | |
5967 | .eh_host_reset_handler = lpfc_no_handler, | |
5968 | .slave_alloc = lpfc_no_slave, | |
5969 | .slave_configure = lpfc_no_slave, | |
5970 | .scan_finished = lpfc_scan_finished, | |
5971 | .this_id = -1, | |
5972 | .sg_tablesize = 1, | |
5973 | .cmd_per_lun = 1, | |
5974 | .use_clustering = ENABLE_CLUSTERING, | |
5975 | .shost_attrs = lpfc_hba_attrs, | |
5976 | .max_sectors = 0xFFFF, | |
5977 | .vendor_id = LPFC_NL_VENDOR_ID, | |
5978 | .track_queue_depth = 0, | |
5979 | }; | |
5980 | ||
96418b5e | 5981 | struct scsi_host_template lpfc_template_no_hr = { |
ea4142f6 JS |
5982 | .module = THIS_MODULE, |
5983 | .name = LPFC_DRIVER_NAME, | |
08dcd4cf | 5984 | .proc_name = LPFC_DRIVER_NAME, |
ea4142f6 JS |
5985 | .info = lpfc_info, |
5986 | .queuecommand = lpfc_queuecommand, | |
856984b7 | 5987 | .eh_timed_out = fc_eh_timed_out, |
ea4142f6 JS |
5988 | .eh_abort_handler = lpfc_abort_handler, |
5989 | .eh_device_reset_handler = lpfc_device_reset_handler, | |
5990 | .eh_target_reset_handler = lpfc_target_reset_handler, | |
5991 | .eh_bus_reset_handler = lpfc_bus_reset_handler, | |
5992 | .slave_alloc = lpfc_slave_alloc, | |
5993 | .slave_configure = lpfc_slave_configure, | |
5994 | .slave_destroy = lpfc_slave_destroy, | |
5995 | .scan_finished = lpfc_scan_finished, | |
5996 | .this_id = -1, | |
5997 | .sg_tablesize = LPFC_DEFAULT_SG_SEG_CNT, | |
5998 | .cmd_per_lun = LPFC_CMD_PER_LUN, | |
5999 | .use_clustering = ENABLE_CLUSTERING, | |
6000 | .shost_attrs = lpfc_hba_attrs, | |
6001 | .max_sectors = 0xFFFF, | |
6002 | .vendor_id = LPFC_NL_VENDOR_ID, | |
6003 | .change_queue_depth = scsi_change_queue_depth, | |
ea4142f6 JS |
6004 | .track_queue_depth = 1, |
6005 | }; | |
6006 | ||
dea3101e | 6007 | struct scsi_host_template lpfc_template = { |
6008 | .module = THIS_MODULE, | |
6009 | .name = LPFC_DRIVER_NAME, | |
08dcd4cf | 6010 | .proc_name = LPFC_DRIVER_NAME, |
dea3101e | 6011 | .info = lpfc_info, |
6012 | .queuecommand = lpfc_queuecommand, | |
b6a05c82 | 6013 | .eh_timed_out = fc_eh_timed_out, |
dea3101e | 6014 | .eh_abort_handler = lpfc_abort_handler, |
bbb9d180 JS |
6015 | .eh_device_reset_handler = lpfc_device_reset_handler, |
6016 | .eh_target_reset_handler = lpfc_target_reset_handler, | |
7054a606 | 6017 | .eh_bus_reset_handler = lpfc_bus_reset_handler, |
27b01b82 | 6018 | .eh_host_reset_handler = lpfc_host_reset_handler, |
dea3101e | 6019 | .slave_alloc = lpfc_slave_alloc, |
6020 | .slave_configure = lpfc_slave_configure, | |
6021 | .slave_destroy = lpfc_slave_destroy, | |
47a8617c | 6022 | .scan_finished = lpfc_scan_finished, |
dea3101e | 6023 | .this_id = -1, |
83108bd3 | 6024 | .sg_tablesize = LPFC_DEFAULT_SG_SEG_CNT, |
dea3101e | 6025 | .cmd_per_lun = LPFC_CMD_PER_LUN, |
6026 | .use_clustering = ENABLE_CLUSTERING, | |
2e0fef85 | 6027 | .shost_attrs = lpfc_hba_attrs, |
564b2960 | 6028 | .max_sectors = 0xFFFF, |
f1c3b0fc | 6029 | .vendor_id = LPFC_NL_VENDOR_ID, |
db5ed4df | 6030 | .change_queue_depth = scsi_change_queue_depth, |
c40ecc12 | 6031 | .track_queue_depth = 1, |
dea3101e | 6032 | }; |
3de2a653 JS |
6033 | |
6034 | struct scsi_host_template lpfc_vport_template = { | |
6035 | .module = THIS_MODULE, | |
6036 | .name = LPFC_DRIVER_NAME, | |
08dcd4cf | 6037 | .proc_name = LPFC_DRIVER_NAME, |
3de2a653 JS |
6038 | .info = lpfc_info, |
6039 | .queuecommand = lpfc_queuecommand, | |
b6a05c82 | 6040 | .eh_timed_out = fc_eh_timed_out, |
3de2a653 | 6041 | .eh_abort_handler = lpfc_abort_handler, |
bbb9d180 JS |
6042 | .eh_device_reset_handler = lpfc_device_reset_handler, |
6043 | .eh_target_reset_handler = lpfc_target_reset_handler, | |
3de2a653 JS |
6044 | .slave_alloc = lpfc_slave_alloc, |
6045 | .slave_configure = lpfc_slave_configure, | |
6046 | .slave_destroy = lpfc_slave_destroy, | |
6047 | .scan_finished = lpfc_scan_finished, | |
6048 | .this_id = -1, | |
83108bd3 | 6049 | .sg_tablesize = LPFC_DEFAULT_SG_SEG_CNT, |
3de2a653 JS |
6050 | .cmd_per_lun = LPFC_CMD_PER_LUN, |
6051 | .use_clustering = ENABLE_CLUSTERING, | |
6052 | .shost_attrs = lpfc_vport_attrs, | |
6053 | .max_sectors = 0xFFFF, | |
db5ed4df | 6054 | .change_queue_depth = scsi_change_queue_depth, |
c40ecc12 | 6055 | .track_queue_depth = 1, |
3de2a653 | 6056 | }; |