Commit | Line | Data |
---|---|---|
d85296cf | 1 | /******************************************************************* |
dea3101e | 2 | * This file is part of the Emulex Linux Device Driver for * |
c44ce173 | 3 | * Fibre Channel Host Bus Adapters. * |
f25e8e79 | 4 | * Copyright (C) 2004-2015 Emulex. All rights reserved. * |
c44ce173 | 5 | * EMULEX and SLI are trademarks of Emulex. * |
dea3101e | 6 | * www.emulex.com * |
c44ce173 | 7 | * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
dea3101e | 8 | * * |
9 | * This program is free software; you can redistribute it and/or * | |
c44ce173 JSEC |
10 | * modify it under the terms of version 2 of the GNU General * |
11 | * Public License as published by the Free Software Foundation. * | |
12 | * This program is distributed in the hope that it will be useful. * | |
13 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * | |
14 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * | |
15 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * | |
16 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * | |
17 | * TO BE LEGALLY INVALID. See the GNU General Public License for * | |
18 | * more details, a copy of which can be found in the file COPYING * | |
19 | * included with this package. * | |
dea3101e | 20 | *******************************************************************/ |
dea3101e | 21 | #include <linux/pci.h> |
5a0e3ad6 | 22 | #include <linux/slab.h> |
dea3101e | 23 | #include <linux/interrupt.h> |
09703660 | 24 | #include <linux/export.h> |
a90f5684 | 25 | #include <linux/delay.h> |
e2a0a9d6 | 26 | #include <asm/unaligned.h> |
737d4248 JS |
27 | #include <linux/crc-t10dif.h> |
28 | #include <net/checksum.h> | |
dea3101e | 29 | |
30 | #include <scsi/scsi.h> | |
31 | #include <scsi/scsi_device.h> | |
e2a0a9d6 | 32 | #include <scsi/scsi_eh.h> |
dea3101e | 33 | #include <scsi/scsi_host.h> |
34 | #include <scsi/scsi_tcq.h> | |
35 | #include <scsi/scsi_transport_fc.h> | |
36 | ||
37 | #include "lpfc_version.h" | |
da0436e9 | 38 | #include "lpfc_hw4.h" |
dea3101e | 39 | #include "lpfc_hw.h" |
40 | #include "lpfc_sli.h" | |
da0436e9 | 41 | #include "lpfc_sli4.h" |
ea2151b4 | 42 | #include "lpfc_nl.h" |
dea3101e | 43 | #include "lpfc_disc.h" |
dea3101e | 44 | #include "lpfc.h" |
9a6b09c0 | 45 | #include "lpfc_scsi.h" |
dea3101e | 46 | #include "lpfc_logmsg.h" |
47 | #include "lpfc_crtn.h" | |
92d7f7b0 | 48 | #include "lpfc_vport.h" |
dea3101e | 49 | |
50 | #define LPFC_RESET_WAIT 2 | |
51 | #define LPFC_ABORT_WAIT 2 | |
52 | ||
737d4248 | 53 | int _dump_buf_done = 1; |
e2a0a9d6 JS |
54 | |
55 | static char *dif_op_str[] = { | |
9a6b09c0 JS |
56 | "PROT_NORMAL", |
57 | "PROT_READ_INSERT", | |
58 | "PROT_WRITE_STRIP", | |
59 | "PROT_READ_STRIP", | |
60 | "PROT_WRITE_INSERT", | |
61 | "PROT_READ_PASS", | |
62 | "PROT_WRITE_PASS", | |
63 | }; | |
64 | ||
f9bb2da1 JS |
65 | struct scsi_dif_tuple { |
66 | __be16 guard_tag; /* Checksum */ | |
67 | __be16 app_tag; /* Opaque storage */ | |
68 | __be32 ref_tag; /* Target LBA or indirect LBA */ | |
69 | }; | |
70 | ||
1ba981fd JS |
71 | static struct lpfc_rport_data * |
72 | lpfc_rport_data_from_scsi_device(struct scsi_device *sdev) | |
73 | { | |
74 | struct lpfc_vport *vport = (struct lpfc_vport *)sdev->host->hostdata; | |
75 | ||
f38fa0bb | 76 | if (vport->phba->cfg_fof) |
1ba981fd JS |
77 | return ((struct lpfc_device_data *)sdev->hostdata)->rport_data; |
78 | else | |
79 | return (struct lpfc_rport_data *)sdev->hostdata; | |
80 | } | |
81 | ||
da0436e9 JS |
82 | static void |
83 | lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb); | |
1c6f4ef5 JS |
84 | static void |
85 | lpfc_release_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb); | |
9c6aa9d7 JS |
86 | static int |
87 | lpfc_prot_group_type(struct lpfc_hba *phba, struct scsi_cmnd *sc); | |
e2a0a9d6 JS |
88 | |
89 | static void | |
6a9c52cf | 90 | lpfc_debug_save_data(struct lpfc_hba *phba, struct scsi_cmnd *cmnd) |
e2a0a9d6 JS |
91 | { |
92 | void *src, *dst; | |
93 | struct scatterlist *sgde = scsi_sglist(cmnd); | |
94 | ||
95 | if (!_dump_buf_data) { | |
6a9c52cf JS |
96 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
97 | "9050 BLKGRD: ERROR %s _dump_buf_data is NULL\n", | |
e2a0a9d6 JS |
98 | __func__); |
99 | return; | |
100 | } | |
101 | ||
102 | ||
103 | if (!sgde) { | |
6a9c52cf JS |
104 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
105 | "9051 BLKGRD: ERROR: data scatterlist is null\n"); | |
e2a0a9d6 JS |
106 | return; |
107 | } | |
108 | ||
109 | dst = (void *) _dump_buf_data; | |
110 | while (sgde) { | |
111 | src = sg_virt(sgde); | |
112 | memcpy(dst, src, sgde->length); | |
113 | dst += sgde->length; | |
114 | sgde = sg_next(sgde); | |
115 | } | |
116 | } | |
117 | ||
118 | static void | |
6a9c52cf | 119 | lpfc_debug_save_dif(struct lpfc_hba *phba, struct scsi_cmnd *cmnd) |
e2a0a9d6 JS |
120 | { |
121 | void *src, *dst; | |
122 | struct scatterlist *sgde = scsi_prot_sglist(cmnd); | |
123 | ||
124 | if (!_dump_buf_dif) { | |
6a9c52cf JS |
125 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
126 | "9052 BLKGRD: ERROR %s _dump_buf_data is NULL\n", | |
e2a0a9d6 JS |
127 | __func__); |
128 | return; | |
129 | } | |
130 | ||
131 | if (!sgde) { | |
6a9c52cf JS |
132 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
133 | "9053 BLKGRD: ERROR: prot scatterlist is null\n"); | |
e2a0a9d6 JS |
134 | return; |
135 | } | |
136 | ||
137 | dst = _dump_buf_dif; | |
138 | while (sgde) { | |
139 | src = sg_virt(sgde); | |
140 | memcpy(dst, src, sgde->length); | |
141 | dst += sgde->length; | |
142 | sgde = sg_next(sgde); | |
143 | } | |
144 | } | |
145 | ||
9c6aa9d7 JS |
146 | static inline unsigned |
147 | lpfc_cmd_blksize(struct scsi_cmnd *sc) | |
148 | { | |
149 | return sc->device->sector_size; | |
150 | } | |
151 | ||
152 | #define LPFC_CHECK_PROTECT_GUARD 1 | |
153 | #define LPFC_CHECK_PROTECT_REF 2 | |
154 | static inline unsigned | |
155 | lpfc_cmd_protect(struct scsi_cmnd *sc, int flag) | |
156 | { | |
157 | return 1; | |
158 | } | |
159 | ||
160 | static inline unsigned | |
161 | lpfc_cmd_guard_csum(struct scsi_cmnd *sc) | |
162 | { | |
163 | if (lpfc_prot_group_type(NULL, sc) == LPFC_PG_TYPE_NO_DIF) | |
164 | return 0; | |
165 | if (scsi_host_get_guard(sc->device->host) == SHOST_DIX_GUARD_IP) | |
166 | return 1; | |
167 | return 0; | |
168 | } | |
169 | ||
f1126688 JS |
170 | /** |
171 | * lpfc_sli4_set_rsp_sgl_last - Set the last bit in the response sge. | |
172 | * @phba: Pointer to HBA object. | |
173 | * @lpfc_cmd: lpfc scsi command object pointer. | |
174 | * | |
175 | * This function is called from the lpfc_prep_task_mgmt_cmd function to | |
176 | * set the last bit in the response sge entry. | |
177 | **/ | |
178 | static void | |
179 | lpfc_sli4_set_rsp_sgl_last(struct lpfc_hba *phba, | |
180 | struct lpfc_scsi_buf *lpfc_cmd) | |
181 | { | |
182 | struct sli4_sge *sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl; | |
183 | if (sgl) { | |
184 | sgl += 1; | |
185 | sgl->word2 = le32_to_cpu(sgl->word2); | |
186 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
187 | sgl->word2 = cpu_to_le32(sgl->word2); | |
188 | } | |
189 | } | |
190 | ||
ea2151b4 | 191 | /** |
3621a710 | 192 | * lpfc_update_stats - Update statistical data for the command completion |
ea2151b4 JS |
193 | * @phba: Pointer to HBA object. |
194 | * @lpfc_cmd: lpfc scsi command object pointer. | |
195 | * | |
196 | * This function is called when there is a command completion and this | |
197 | * function updates the statistical data for the command completion. | |
198 | **/ | |
199 | static void | |
200 | lpfc_update_stats(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) | |
201 | { | |
202 | struct lpfc_rport_data *rdata = lpfc_cmd->rdata; | |
203 | struct lpfc_nodelist *pnode = rdata->pnode; | |
204 | struct scsi_cmnd *cmd = lpfc_cmd->pCmd; | |
205 | unsigned long flags; | |
206 | struct Scsi_Host *shost = cmd->device->host; | |
207 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
208 | unsigned long latency; | |
209 | int i; | |
210 | ||
211 | if (cmd->result) | |
212 | return; | |
213 | ||
9f1e1b50 JS |
214 | latency = jiffies_to_msecs((long)jiffies - (long)lpfc_cmd->start_time); |
215 | ||
ea2151b4 JS |
216 | spin_lock_irqsave(shost->host_lock, flags); |
217 | if (!vport->stat_data_enabled || | |
218 | vport->stat_data_blocked || | |
5989b8d4 | 219 | !pnode || |
ea2151b4 JS |
220 | !pnode->lat_data || |
221 | (phba->bucket_type == LPFC_NO_BUCKET)) { | |
222 | spin_unlock_irqrestore(shost->host_lock, flags); | |
223 | return; | |
224 | } | |
ea2151b4 JS |
225 | |
226 | if (phba->bucket_type == LPFC_LINEAR_BUCKET) { | |
227 | i = (latency + phba->bucket_step - 1 - phba->bucket_base)/ | |
228 | phba->bucket_step; | |
9f1e1b50 JS |
229 | /* check array subscript bounds */ |
230 | if (i < 0) | |
231 | i = 0; | |
232 | else if (i >= LPFC_MAX_BUCKET_COUNT) | |
233 | i = LPFC_MAX_BUCKET_COUNT - 1; | |
ea2151b4 JS |
234 | } else { |
235 | for (i = 0; i < LPFC_MAX_BUCKET_COUNT-1; i++) | |
236 | if (latency <= (phba->bucket_base + | |
237 | ((1<<i)*phba->bucket_step))) | |
238 | break; | |
239 | } | |
240 | ||
241 | pnode->lat_data[i].cmd_count++; | |
242 | spin_unlock_irqrestore(shost->host_lock, flags); | |
243 | } | |
244 | ||
9bad7671 | 245 | /** |
3621a710 | 246 | * lpfc_rampdown_queue_depth - Post RAMP_DOWN_QUEUE event to worker thread |
9bad7671 JS |
247 | * @phba: The Hba for which this call is being executed. |
248 | * | |
249 | * This routine is called when there is resource error in driver or firmware. | |
250 | * This routine posts WORKER_RAMP_DOWN_QUEUE event for @phba. This routine | |
251 | * posts at most 1 event each second. This routine wakes up worker thread of | |
252 | * @phba to process WORKER_RAM_DOWN_EVENT event. | |
253 | * | |
254 | * This routine should be called with no lock held. | |
255 | **/ | |
92d7f7b0 | 256 | void |
eaf15d5b | 257 | lpfc_rampdown_queue_depth(struct lpfc_hba *phba) |
92d7f7b0 JS |
258 | { |
259 | unsigned long flags; | |
5e9d9b82 | 260 | uint32_t evt_posted; |
0d4aec13 | 261 | unsigned long expires; |
92d7f7b0 JS |
262 | |
263 | spin_lock_irqsave(&phba->hbalock, flags); | |
264 | atomic_inc(&phba->num_rsrc_err); | |
265 | phba->last_rsrc_error_time = jiffies; | |
266 | ||
0d4aec13 MS |
267 | expires = phba->last_ramp_down_time + QUEUE_RAMP_DOWN_INTERVAL; |
268 | if (time_after(expires, jiffies)) { | |
92d7f7b0 JS |
269 | spin_unlock_irqrestore(&phba->hbalock, flags); |
270 | return; | |
271 | } | |
272 | ||
273 | phba->last_ramp_down_time = jiffies; | |
274 | ||
275 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
276 | ||
277 | spin_lock_irqsave(&phba->pport->work_port_lock, flags); | |
5e9d9b82 JS |
278 | evt_posted = phba->pport->work_port_events & WORKER_RAMP_DOWN_QUEUE; |
279 | if (!evt_posted) | |
92d7f7b0 | 280 | phba->pport->work_port_events |= WORKER_RAMP_DOWN_QUEUE; |
92d7f7b0 JS |
281 | spin_unlock_irqrestore(&phba->pport->work_port_lock, flags); |
282 | ||
5e9d9b82 JS |
283 | if (!evt_posted) |
284 | lpfc_worker_wake_up(phba); | |
92d7f7b0 JS |
285 | return; |
286 | } | |
287 | ||
9bad7671 | 288 | /** |
3621a710 | 289 | * lpfc_ramp_down_queue_handler - WORKER_RAMP_DOWN_QUEUE event handler |
9bad7671 JS |
290 | * @phba: The Hba for which this call is being executed. |
291 | * | |
292 | * This routine is called to process WORKER_RAMP_DOWN_QUEUE event for worker | |
293 | * thread.This routine reduces queue depth for all scsi device on each vport | |
294 | * associated with @phba. | |
295 | **/ | |
92d7f7b0 JS |
296 | void |
297 | lpfc_ramp_down_queue_handler(struct lpfc_hba *phba) | |
298 | { | |
549e55cd JS |
299 | struct lpfc_vport **vports; |
300 | struct Scsi_Host *shost; | |
92d7f7b0 | 301 | struct scsi_device *sdev; |
5ffc266e | 302 | unsigned long new_queue_depth; |
92d7f7b0 | 303 | unsigned long num_rsrc_err, num_cmd_success; |
549e55cd | 304 | int i; |
92d7f7b0 JS |
305 | |
306 | num_rsrc_err = atomic_read(&phba->num_rsrc_err); | |
307 | num_cmd_success = atomic_read(&phba->num_cmd_success); | |
308 | ||
75ad83a4 JS |
309 | /* |
310 | * The error and success command counters are global per | |
311 | * driver instance. If another handler has already | |
312 | * operated on this error event, just exit. | |
313 | */ | |
314 | if (num_rsrc_err == 0) | |
315 | return; | |
316 | ||
549e55cd JS |
317 | vports = lpfc_create_vport_work_array(phba); |
318 | if (vports != NULL) | |
21e9a0a5 | 319 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
549e55cd JS |
320 | shost = lpfc_shost_from_vport(vports[i]); |
321 | shost_for_each_device(sdev, shost) { | |
92d7f7b0 | 322 | new_queue_depth = |
549e55cd JS |
323 | sdev->queue_depth * num_rsrc_err / |
324 | (num_rsrc_err + num_cmd_success); | |
325 | if (!new_queue_depth) | |
326 | new_queue_depth = sdev->queue_depth - 1; | |
327 | else | |
328 | new_queue_depth = sdev->queue_depth - | |
329 | new_queue_depth; | |
db5ed4df | 330 | scsi_change_queue_depth(sdev, new_queue_depth); |
549e55cd | 331 | } |
92d7f7b0 | 332 | } |
09372820 | 333 | lpfc_destroy_vport_work_array(phba, vports); |
92d7f7b0 JS |
334 | atomic_set(&phba->num_rsrc_err, 0); |
335 | atomic_set(&phba->num_cmd_success, 0); | |
336 | } | |
337 | ||
a8e497d5 | 338 | /** |
3621a710 | 339 | * lpfc_scsi_dev_block - set all scsi hosts to block state |
a8e497d5 JS |
340 | * @phba: Pointer to HBA context object. |
341 | * | |
342 | * This function walks vport list and set each SCSI host to block state | |
343 | * by invoking fc_remote_port_delete() routine. This function is invoked | |
344 | * with EEH when device's PCI slot has been permanently disabled. | |
345 | **/ | |
346 | void | |
347 | lpfc_scsi_dev_block(struct lpfc_hba *phba) | |
348 | { | |
349 | struct lpfc_vport **vports; | |
350 | struct Scsi_Host *shost; | |
351 | struct scsi_device *sdev; | |
352 | struct fc_rport *rport; | |
353 | int i; | |
354 | ||
355 | vports = lpfc_create_vport_work_array(phba); | |
356 | if (vports != NULL) | |
21e9a0a5 | 357 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
a8e497d5 JS |
358 | shost = lpfc_shost_from_vport(vports[i]); |
359 | shost_for_each_device(sdev, shost) { | |
360 | rport = starget_to_rport(scsi_target(sdev)); | |
361 | fc_remote_port_delete(rport); | |
362 | } | |
363 | } | |
364 | lpfc_destroy_vport_work_array(phba, vports); | |
365 | } | |
366 | ||
9bad7671 | 367 | /** |
3772a991 | 368 | * lpfc_new_scsi_buf_s3 - Scsi buffer allocator for HBA with SLI3 IF spec |
9bad7671 | 369 | * @vport: The virtual port for which this call being executed. |
3772a991 | 370 | * @num_to_allocate: The requested number of buffers to allocate. |
9bad7671 | 371 | * |
3772a991 JS |
372 | * This routine allocates a scsi buffer for device with SLI-3 interface spec, |
373 | * the scsi buffer contains all the necessary information needed to initiate | |
374 | * a SCSI I/O. The non-DMAable buffer region contains information to build | |
375 | * the IOCB. The DMAable region contains memory for the FCP CMND, FCP RSP, | |
376 | * and the initial BPL. In addition to allocating memory, the FCP CMND and | |
377 | * FCP RSP BDEs are setup in the BPL and the BPL BDE is setup in the IOCB. | |
9bad7671 JS |
378 | * |
379 | * Return codes: | |
3772a991 JS |
380 | * int - number of scsi buffers that were allocated. |
381 | * 0 = failure, less than num_to_alloc is a partial failure. | |
9bad7671 | 382 | **/ |
3772a991 JS |
383 | static int |
384 | lpfc_new_scsi_buf_s3(struct lpfc_vport *vport, int num_to_alloc) | |
dea3101e | 385 | { |
2e0fef85 | 386 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 387 | struct lpfc_scsi_buf *psb; |
388 | struct ulp_bde64 *bpl; | |
389 | IOCB_t *iocb; | |
34b02dcd JS |
390 | dma_addr_t pdma_phys_fcp_cmd; |
391 | dma_addr_t pdma_phys_fcp_rsp; | |
392 | dma_addr_t pdma_phys_bpl; | |
604a3e30 | 393 | uint16_t iotag; |
96f7077f JS |
394 | int bcnt, bpl_size; |
395 | ||
396 | bpl_size = phba->cfg_sg_dma_buf_size - | |
397 | (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp)); | |
398 | ||
399 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
400 | "9067 ALLOC %d scsi_bufs: %d (%d + %d + %d)\n", | |
401 | num_to_alloc, phba->cfg_sg_dma_buf_size, | |
402 | (int)sizeof(struct fcp_cmnd), | |
403 | (int)sizeof(struct fcp_rsp), bpl_size); | |
dea3101e | 404 | |
3772a991 JS |
405 | for (bcnt = 0; bcnt < num_to_alloc; bcnt++) { |
406 | psb = kzalloc(sizeof(struct lpfc_scsi_buf), GFP_KERNEL); | |
407 | if (!psb) | |
408 | break; | |
dea3101e | 409 | |
3772a991 JS |
410 | /* |
411 | * Get memory from the pci pool to map the virt space to pci | |
412 | * bus space for an I/O. The DMA buffer includes space for the | |
413 | * struct fcp_cmnd, struct fcp_rsp and the number of bde's | |
414 | * necessary to support the sg_tablesize. | |
415 | */ | |
416 | psb->data = pci_pool_alloc(phba->lpfc_scsi_dma_buf_pool, | |
417 | GFP_KERNEL, &psb->dma_handle); | |
418 | if (!psb->data) { | |
419 | kfree(psb); | |
420 | break; | |
421 | } | |
422 | ||
423 | /* Initialize virtual ptrs to dma_buf region. */ | |
424 | memset(psb->data, 0, phba->cfg_sg_dma_buf_size); | |
425 | ||
426 | /* Allocate iotag for psb->cur_iocbq. */ | |
427 | iotag = lpfc_sli_next_iotag(phba, &psb->cur_iocbq); | |
428 | if (iotag == 0) { | |
429 | pci_pool_free(phba->lpfc_scsi_dma_buf_pool, | |
430 | psb->data, psb->dma_handle); | |
431 | kfree(psb); | |
432 | break; | |
433 | } | |
434 | psb->cur_iocbq.iocb_flag |= LPFC_IO_FCP; | |
435 | ||
436 | psb->fcp_cmnd = psb->data; | |
437 | psb->fcp_rsp = psb->data + sizeof(struct fcp_cmnd); | |
438 | psb->fcp_bpl = psb->data + sizeof(struct fcp_cmnd) + | |
34b02dcd | 439 | sizeof(struct fcp_rsp); |
dea3101e | 440 | |
3772a991 JS |
441 | /* Initialize local short-hand pointers. */ |
442 | bpl = psb->fcp_bpl; | |
443 | pdma_phys_fcp_cmd = psb->dma_handle; | |
444 | pdma_phys_fcp_rsp = psb->dma_handle + sizeof(struct fcp_cmnd); | |
445 | pdma_phys_bpl = psb->dma_handle + sizeof(struct fcp_cmnd) + | |
446 | sizeof(struct fcp_rsp); | |
447 | ||
448 | /* | |
449 | * The first two bdes are the FCP_CMD and FCP_RSP. The balance | |
450 | * are sg list bdes. Initialize the first two and leave the | |
451 | * rest for queuecommand. | |
452 | */ | |
453 | bpl[0].addrHigh = le32_to_cpu(putPaddrHigh(pdma_phys_fcp_cmd)); | |
454 | bpl[0].addrLow = le32_to_cpu(putPaddrLow(pdma_phys_fcp_cmd)); | |
455 | bpl[0].tus.f.bdeSize = sizeof(struct fcp_cmnd); | |
456 | bpl[0].tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
457 | bpl[0].tus.w = le32_to_cpu(bpl[0].tus.w); | |
458 | ||
459 | /* Setup the physical region for the FCP RSP */ | |
460 | bpl[1].addrHigh = le32_to_cpu(putPaddrHigh(pdma_phys_fcp_rsp)); | |
461 | bpl[1].addrLow = le32_to_cpu(putPaddrLow(pdma_phys_fcp_rsp)); | |
462 | bpl[1].tus.f.bdeSize = sizeof(struct fcp_rsp); | |
463 | bpl[1].tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
464 | bpl[1].tus.w = le32_to_cpu(bpl[1].tus.w); | |
465 | ||
466 | /* | |
467 | * Since the IOCB for the FCP I/O is built into this | |
468 | * lpfc_scsi_buf, initialize it with all known data now. | |
469 | */ | |
470 | iocb = &psb->cur_iocbq.iocb; | |
471 | iocb->un.fcpi64.bdl.ulpIoTag32 = 0; | |
472 | if ((phba->sli_rev == 3) && | |
473 | !(phba->sli3_options & LPFC_SLI3_BG_ENABLED)) { | |
474 | /* fill in immediate fcp command BDE */ | |
475 | iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BDE_IMMED; | |
476 | iocb->un.fcpi64.bdl.bdeSize = sizeof(struct fcp_cmnd); | |
477 | iocb->un.fcpi64.bdl.addrLow = offsetof(IOCB_t, | |
478 | unsli3.fcp_ext.icd); | |
479 | iocb->un.fcpi64.bdl.addrHigh = 0; | |
480 | iocb->ulpBdeCount = 0; | |
481 | iocb->ulpLe = 0; | |
25985edc | 482 | /* fill in response BDE */ |
3772a991 JS |
483 | iocb->unsli3.fcp_ext.rbde.tus.f.bdeFlags = |
484 | BUFF_TYPE_BDE_64; | |
485 | iocb->unsli3.fcp_ext.rbde.tus.f.bdeSize = | |
486 | sizeof(struct fcp_rsp); | |
487 | iocb->unsli3.fcp_ext.rbde.addrLow = | |
488 | putPaddrLow(pdma_phys_fcp_rsp); | |
489 | iocb->unsli3.fcp_ext.rbde.addrHigh = | |
490 | putPaddrHigh(pdma_phys_fcp_rsp); | |
491 | } else { | |
492 | iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
493 | iocb->un.fcpi64.bdl.bdeSize = | |
494 | (2 * sizeof(struct ulp_bde64)); | |
495 | iocb->un.fcpi64.bdl.addrLow = | |
496 | putPaddrLow(pdma_phys_bpl); | |
497 | iocb->un.fcpi64.bdl.addrHigh = | |
498 | putPaddrHigh(pdma_phys_bpl); | |
499 | iocb->ulpBdeCount = 1; | |
500 | iocb->ulpLe = 1; | |
501 | } | |
502 | iocb->ulpClass = CLASS3; | |
503 | psb->status = IOSTAT_SUCCESS; | |
da0436e9 | 504 | /* Put it back into the SCSI buffer list */ |
eee8877e | 505 | psb->cur_iocbq.context1 = psb; |
1c6f4ef5 | 506 | lpfc_release_scsi_buf_s3(phba, psb); |
dea3101e | 507 | |
34b02dcd | 508 | } |
dea3101e | 509 | |
3772a991 | 510 | return bcnt; |
dea3101e | 511 | } |
512 | ||
1151e3ec JS |
513 | /** |
514 | * lpfc_sli4_vport_delete_fcp_xri_aborted -Remove all ndlp references for vport | |
515 | * @vport: pointer to lpfc vport data structure. | |
516 | * | |
517 | * This routine is invoked by the vport cleanup for deletions and the cleanup | |
518 | * for an ndlp on removal. | |
519 | **/ | |
520 | void | |
521 | lpfc_sli4_vport_delete_fcp_xri_aborted(struct lpfc_vport *vport) | |
522 | { | |
523 | struct lpfc_hba *phba = vport->phba; | |
524 | struct lpfc_scsi_buf *psb, *next_psb; | |
525 | unsigned long iflag = 0; | |
526 | ||
527 | spin_lock_irqsave(&phba->hbalock, iflag); | |
528 | spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); | |
529 | list_for_each_entry_safe(psb, next_psb, | |
530 | &phba->sli4_hba.lpfc_abts_scsi_buf_list, list) { | |
531 | if (psb->rdata && psb->rdata->pnode | |
532 | && psb->rdata->pnode->vport == vport) | |
533 | psb->rdata = NULL; | |
534 | } | |
535 | spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); | |
536 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
537 | } | |
538 | ||
da0436e9 JS |
539 | /** |
540 | * lpfc_sli4_fcp_xri_aborted - Fast-path process of fcp xri abort | |
541 | * @phba: pointer to lpfc hba data structure. | |
542 | * @axri: pointer to the fcp xri abort wcqe structure. | |
543 | * | |
544 | * This routine is invoked by the worker thread to process a SLI4 fast-path | |
545 | * FCP aborted xri. | |
546 | **/ | |
547 | void | |
548 | lpfc_sli4_fcp_xri_aborted(struct lpfc_hba *phba, | |
549 | struct sli4_wcqe_xri_aborted *axri) | |
550 | { | |
551 | uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri); | |
19ca7609 | 552 | uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri); |
da0436e9 JS |
553 | struct lpfc_scsi_buf *psb, *next_psb; |
554 | unsigned long iflag = 0; | |
0f65ff68 JS |
555 | struct lpfc_iocbq *iocbq; |
556 | int i; | |
19ca7609 JS |
557 | struct lpfc_nodelist *ndlp; |
558 | int rrq_empty = 0; | |
589a52d6 | 559 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
da0436e9 | 560 | |
0f65ff68 JS |
561 | spin_lock_irqsave(&phba->hbalock, iflag); |
562 | spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); | |
da0436e9 JS |
563 | list_for_each_entry_safe(psb, next_psb, |
564 | &phba->sli4_hba.lpfc_abts_scsi_buf_list, list) { | |
565 | if (psb->cur_iocbq.sli4_xritag == xri) { | |
566 | list_del(&psb->list); | |
341af102 | 567 | psb->exch_busy = 0; |
da0436e9 | 568 | psb->status = IOSTAT_SUCCESS; |
0f65ff68 JS |
569 | spin_unlock( |
570 | &phba->sli4_hba.abts_scsi_buf_list_lock); | |
1151e3ec JS |
571 | if (psb->rdata && psb->rdata->pnode) |
572 | ndlp = psb->rdata->pnode; | |
573 | else | |
574 | ndlp = NULL; | |
575 | ||
19ca7609 | 576 | rrq_empty = list_empty(&phba->active_rrq_list); |
0f65ff68 | 577 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
cb69f7de | 578 | if (ndlp) { |
ee0f4fe1 JS |
579 | lpfc_set_rrq_active(phba, ndlp, |
580 | psb->cur_iocbq.sli4_lxritag, rxid, 1); | |
cb69f7de JS |
581 | lpfc_sli4_abts_err_handler(phba, ndlp, axri); |
582 | } | |
da0436e9 | 583 | lpfc_release_scsi_buf_s4(phba, psb); |
19ca7609 JS |
584 | if (rrq_empty) |
585 | lpfc_worker_wake_up(phba); | |
da0436e9 JS |
586 | return; |
587 | } | |
588 | } | |
0f65ff68 JS |
589 | spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); |
590 | for (i = 1; i <= phba->sli.last_iotag; i++) { | |
591 | iocbq = phba->sli.iocbq_lookup[i]; | |
592 | ||
593 | if (!(iocbq->iocb_flag & LPFC_IO_FCP) || | |
594 | (iocbq->iocb_flag & LPFC_IO_LIBDFC)) | |
595 | continue; | |
596 | if (iocbq->sli4_xritag != xri) | |
597 | continue; | |
598 | psb = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq); | |
599 | psb->exch_busy = 0; | |
600 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
0e9bb8d7 | 601 | if (!list_empty(&pring->txq)) |
589a52d6 | 602 | lpfc_worker_wake_up(phba); |
0f65ff68 JS |
603 | return; |
604 | ||
605 | } | |
606 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
da0436e9 JS |
607 | } |
608 | ||
609 | /** | |
8a9d2e80 | 610 | * lpfc_sli4_post_scsi_sgl_list - Psot blocks of scsi buffer sgls from a list |
da0436e9 | 611 | * @phba: pointer to lpfc hba data structure. |
8a9d2e80 | 612 | * @post_sblist: pointer to the scsi buffer list. |
da0436e9 | 613 | * |
8a9d2e80 JS |
614 | * This routine walks a list of scsi buffers that was passed in. It attempts |
615 | * to construct blocks of scsi buffer sgls which contains contiguous xris and | |
616 | * uses the non-embedded SGL block post mailbox commands to post to the port. | |
617 | * For single SCSI buffer sgl with non-contiguous xri, if any, it shall use | |
618 | * embedded SGL post mailbox command for posting. The @post_sblist passed in | |
619 | * must be local list, thus no lock is needed when manipulate the list. | |
da0436e9 | 620 | * |
8a9d2e80 | 621 | * Returns: 0 = failure, non-zero number of successfully posted buffers. |
da0436e9 | 622 | **/ |
7bfe781e | 623 | static int |
8a9d2e80 JS |
624 | lpfc_sli4_post_scsi_sgl_list(struct lpfc_hba *phba, |
625 | struct list_head *post_sblist, int sb_count) | |
da0436e9 | 626 | { |
8a9d2e80 | 627 | struct lpfc_scsi_buf *psb, *psb_next; |
96f7077f | 628 | int status, sgl_size; |
8a9d2e80 JS |
629 | int post_cnt = 0, block_cnt = 0, num_posting = 0, num_posted = 0; |
630 | dma_addr_t pdma_phys_bpl1; | |
631 | int last_xritag = NO_XRI; | |
632 | LIST_HEAD(prep_sblist); | |
633 | LIST_HEAD(blck_sblist); | |
634 | LIST_HEAD(scsi_sblist); | |
635 | ||
636 | /* sanity check */ | |
637 | if (sb_count <= 0) | |
638 | return -EINVAL; | |
639 | ||
96f7077f JS |
640 | sgl_size = phba->cfg_sg_dma_buf_size - |
641 | (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp)); | |
642 | ||
8a9d2e80 JS |
643 | list_for_each_entry_safe(psb, psb_next, post_sblist, list) { |
644 | list_del_init(&psb->list); | |
645 | block_cnt++; | |
646 | if ((last_xritag != NO_XRI) && | |
647 | (psb->cur_iocbq.sli4_xritag != last_xritag + 1)) { | |
648 | /* a hole in xri block, form a sgl posting block */ | |
649 | list_splice_init(&prep_sblist, &blck_sblist); | |
650 | post_cnt = block_cnt - 1; | |
651 | /* prepare list for next posting block */ | |
652 | list_add_tail(&psb->list, &prep_sblist); | |
653 | block_cnt = 1; | |
654 | } else { | |
655 | /* prepare list for next posting block */ | |
656 | list_add_tail(&psb->list, &prep_sblist); | |
657 | /* enough sgls for non-embed sgl mbox command */ | |
658 | if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) { | |
659 | list_splice_init(&prep_sblist, &blck_sblist); | |
660 | post_cnt = block_cnt; | |
661 | block_cnt = 0; | |
da0436e9 | 662 | } |
8a9d2e80 JS |
663 | } |
664 | num_posting++; | |
665 | last_xritag = psb->cur_iocbq.sli4_xritag; | |
da0436e9 | 666 | |
8a9d2e80 JS |
667 | /* end of repost sgl list condition for SCSI buffers */ |
668 | if (num_posting == sb_count) { | |
669 | if (post_cnt == 0) { | |
670 | /* last sgl posting block */ | |
671 | list_splice_init(&prep_sblist, &blck_sblist); | |
672 | post_cnt = block_cnt; | |
673 | } else if (block_cnt == 1) { | |
674 | /* last single sgl with non-contiguous xri */ | |
96f7077f | 675 | if (sgl_size > SGL_PAGE_SIZE) |
8a9d2e80 JS |
676 | pdma_phys_bpl1 = psb->dma_phys_bpl + |
677 | SGL_PAGE_SIZE; | |
678 | else | |
679 | pdma_phys_bpl1 = 0; | |
680 | status = lpfc_sli4_post_sgl(phba, | |
681 | psb->dma_phys_bpl, | |
682 | pdma_phys_bpl1, | |
683 | psb->cur_iocbq.sli4_xritag); | |
684 | if (status) { | |
685 | /* failure, put on abort scsi list */ | |
686 | psb->exch_busy = 1; | |
687 | } else { | |
688 | /* success, put on SCSI buffer list */ | |
689 | psb->exch_busy = 0; | |
690 | psb->status = IOSTAT_SUCCESS; | |
691 | num_posted++; | |
692 | } | |
693 | /* success, put on SCSI buffer sgl list */ | |
694 | list_add_tail(&psb->list, &scsi_sblist); | |
695 | } | |
696 | } | |
da0436e9 | 697 | |
8a9d2e80 JS |
698 | /* continue until a nembed page worth of sgls */ |
699 | if (post_cnt == 0) | |
da0436e9 | 700 | continue; |
8a9d2e80 JS |
701 | |
702 | /* post block of SCSI buffer list sgls */ | |
703 | status = lpfc_sli4_post_scsi_sgl_block(phba, &blck_sblist, | |
704 | post_cnt); | |
705 | ||
706 | /* don't reset xirtag due to hole in xri block */ | |
707 | if (block_cnt == 0) | |
708 | last_xritag = NO_XRI; | |
709 | ||
710 | /* reset SCSI buffer post count for next round of posting */ | |
711 | post_cnt = 0; | |
712 | ||
713 | /* put posted SCSI buffer-sgl posted on SCSI buffer sgl list */ | |
714 | while (!list_empty(&blck_sblist)) { | |
715 | list_remove_head(&blck_sblist, psb, | |
716 | struct lpfc_scsi_buf, list); | |
da0436e9 | 717 | if (status) { |
8a9d2e80 | 718 | /* failure, put on abort scsi list */ |
341af102 | 719 | psb->exch_busy = 1; |
341af102 | 720 | } else { |
8a9d2e80 | 721 | /* success, put on SCSI buffer list */ |
341af102 | 722 | psb->exch_busy = 0; |
da0436e9 | 723 | psb->status = IOSTAT_SUCCESS; |
8a9d2e80 | 724 | num_posted++; |
341af102 | 725 | } |
8a9d2e80 | 726 | list_add_tail(&psb->list, &scsi_sblist); |
da0436e9 JS |
727 | } |
728 | } | |
8a9d2e80 JS |
729 | /* Push SCSI buffers with sgl posted to the availble list */ |
730 | while (!list_empty(&scsi_sblist)) { | |
731 | list_remove_head(&scsi_sblist, psb, | |
732 | struct lpfc_scsi_buf, list); | |
733 | lpfc_release_scsi_buf_s4(phba, psb); | |
734 | } | |
735 | return num_posted; | |
736 | } | |
737 | ||
738 | /** | |
739 | * lpfc_sli4_repost_scsi_sgl_list - Repsot all the allocated scsi buffer sgls | |
740 | * @phba: pointer to lpfc hba data structure. | |
741 | * | |
742 | * This routine walks the list of scsi buffers that have been allocated and | |
743 | * repost them to the port by using SGL block post. This is needed after a | |
744 | * pci_function_reset/warm_start or start. The lpfc_hba_down_post_s4 routine | |
745 | * is responsible for moving all scsi buffers on the lpfc_abts_scsi_sgl_list | |
746 | * to the lpfc_scsi_buf_list. If the repost fails, reject all scsi buffers. | |
747 | * | |
748 | * Returns: 0 = success, non-zero failure. | |
749 | **/ | |
750 | int | |
751 | lpfc_sli4_repost_scsi_sgl_list(struct lpfc_hba *phba) | |
752 | { | |
753 | LIST_HEAD(post_sblist); | |
754 | int num_posted, rc = 0; | |
755 | ||
756 | /* get all SCSI buffers need to repost to a local list */ | |
a40fc5f0 | 757 | spin_lock_irq(&phba->scsi_buf_list_get_lock); |
164cecd1 | 758 | spin_lock(&phba->scsi_buf_list_put_lock); |
a40fc5f0 JS |
759 | list_splice_init(&phba->lpfc_scsi_buf_list_get, &post_sblist); |
760 | list_splice(&phba->lpfc_scsi_buf_list_put, &post_sblist); | |
164cecd1 | 761 | spin_unlock(&phba->scsi_buf_list_put_lock); |
a40fc5f0 | 762 | spin_unlock_irq(&phba->scsi_buf_list_get_lock); |
8a9d2e80 JS |
763 | |
764 | /* post the list of scsi buffer sgls to port if available */ | |
765 | if (!list_empty(&post_sblist)) { | |
766 | num_posted = lpfc_sli4_post_scsi_sgl_list(phba, &post_sblist, | |
767 | phba->sli4_hba.scsi_xri_cnt); | |
768 | /* failed to post any scsi buffer, return error */ | |
769 | if (num_posted == 0) | |
770 | rc = -EIO; | |
771 | } | |
da0436e9 JS |
772 | return rc; |
773 | } | |
774 | ||
775 | /** | |
776 | * lpfc_new_scsi_buf_s4 - Scsi buffer allocator for HBA with SLI4 IF spec | |
777 | * @vport: The virtual port for which this call being executed. | |
778 | * @num_to_allocate: The requested number of buffers to allocate. | |
779 | * | |
8a9d2e80 | 780 | * This routine allocates scsi buffers for device with SLI-4 interface spec, |
da0436e9 | 781 | * the scsi buffer contains all the necessary information needed to initiate |
8a9d2e80 JS |
782 | * a SCSI I/O. After allocating up to @num_to_allocate SCSI buffers and put |
783 | * them on a list, it post them to the port by using SGL block post. | |
da0436e9 JS |
784 | * |
785 | * Return codes: | |
8a9d2e80 | 786 | * int - number of scsi buffers that were allocated and posted. |
da0436e9 JS |
787 | * 0 = failure, less than num_to_alloc is a partial failure. |
788 | **/ | |
789 | static int | |
790 | lpfc_new_scsi_buf_s4(struct lpfc_vport *vport, int num_to_alloc) | |
791 | { | |
792 | struct lpfc_hba *phba = vport->phba; | |
793 | struct lpfc_scsi_buf *psb; | |
794 | struct sli4_sge *sgl; | |
795 | IOCB_t *iocb; | |
796 | dma_addr_t pdma_phys_fcp_cmd; | |
797 | dma_addr_t pdma_phys_fcp_rsp; | |
96f7077f | 798 | dma_addr_t pdma_phys_bpl; |
8a9d2e80 | 799 | uint16_t iotag, lxri = 0; |
96f7077f | 800 | int bcnt, num_posted, sgl_size; |
8a9d2e80 JS |
801 | LIST_HEAD(prep_sblist); |
802 | LIST_HEAD(post_sblist); | |
803 | LIST_HEAD(scsi_sblist); | |
da0436e9 | 804 | |
96f7077f JS |
805 | sgl_size = phba->cfg_sg_dma_buf_size - |
806 | (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp)); | |
807 | ||
808 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
809 | "9068 ALLOC %d scsi_bufs: %d (%d + %d + %d)\n", | |
810 | num_to_alloc, phba->cfg_sg_dma_buf_size, sgl_size, | |
811 | (int)sizeof(struct fcp_cmnd), | |
812 | (int)sizeof(struct fcp_rsp)); | |
813 | ||
da0436e9 JS |
814 | for (bcnt = 0; bcnt < num_to_alloc; bcnt++) { |
815 | psb = kzalloc(sizeof(struct lpfc_scsi_buf), GFP_KERNEL); | |
816 | if (!psb) | |
817 | break; | |
da0436e9 | 818 | /* |
8a9d2e80 JS |
819 | * Get memory from the pci pool to map the virt space to |
820 | * pci bus space for an I/O. The DMA buffer includes space | |
821 | * for the struct fcp_cmnd, struct fcp_rsp and the number | |
822 | * of bde's necessary to support the sg_tablesize. | |
da0436e9 JS |
823 | */ |
824 | psb->data = pci_pool_alloc(phba->lpfc_scsi_dma_buf_pool, | |
825 | GFP_KERNEL, &psb->dma_handle); | |
826 | if (!psb->data) { | |
827 | kfree(psb); | |
828 | break; | |
829 | } | |
da0436e9 JS |
830 | memset(psb->data, 0, phba->cfg_sg_dma_buf_size); |
831 | ||
092cb034 JS |
832 | /* |
833 | * 4K Page alignment is CRITICAL to BlockGuard, double check | |
834 | * to be sure. | |
835 | */ | |
836 | if (phba->cfg_enable_bg && (((unsigned long)(psb->data) & | |
837 | (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) { | |
96f7077f JS |
838 | pci_pool_free(phba->lpfc_scsi_dma_buf_pool, |
839 | psb->data, psb->dma_handle); | |
840 | kfree(psb); | |
841 | break; | |
842 | } | |
843 | ||
f7bc6434 JS |
844 | |
845 | lxri = lpfc_sli4_next_xritag(phba); | |
846 | if (lxri == NO_XRI) { | |
b92938b4 | 847 | pci_pool_free(phba->lpfc_scsi_dma_buf_pool, |
f7bc6434 | 848 | psb->data, psb->dma_handle); |
da0436e9 JS |
849 | kfree(psb); |
850 | break; | |
851 | } | |
852 | ||
f7bc6434 JS |
853 | /* Allocate iotag for psb->cur_iocbq. */ |
854 | iotag = lpfc_sli_next_iotag(phba, &psb->cur_iocbq); | |
855 | if (iotag == 0) { | |
da0436e9 | 856 | pci_pool_free(phba->lpfc_scsi_dma_buf_pool, |
f7bc6434 | 857 | psb->data, psb->dma_handle); |
da0436e9 | 858 | kfree(psb); |
f7bc6434 JS |
859 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, |
860 | "3368 Failed to allocated IOTAG for" | |
861 | " XRI:0x%x\n", lxri); | |
862 | lpfc_sli4_free_xri(phba, lxri); | |
da0436e9 JS |
863 | break; |
864 | } | |
6d368e53 JS |
865 | psb->cur_iocbq.sli4_lxritag = lxri; |
866 | psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; | |
da0436e9 | 867 | psb->cur_iocbq.iocb_flag |= LPFC_IO_FCP; |
da0436e9 | 868 | psb->fcp_bpl = psb->data; |
96f7077f | 869 | psb->fcp_cmnd = (psb->data + sgl_size); |
da0436e9 JS |
870 | psb->fcp_rsp = (struct fcp_rsp *)((uint8_t *)psb->fcp_cmnd + |
871 | sizeof(struct fcp_cmnd)); | |
872 | ||
873 | /* Initialize local short-hand pointers. */ | |
874 | sgl = (struct sli4_sge *)psb->fcp_bpl; | |
875 | pdma_phys_bpl = psb->dma_handle; | |
96f7077f | 876 | pdma_phys_fcp_cmd = (psb->dma_handle + sgl_size); |
da0436e9 JS |
877 | pdma_phys_fcp_rsp = pdma_phys_fcp_cmd + sizeof(struct fcp_cmnd); |
878 | ||
879 | /* | |
8a9d2e80 JS |
880 | * The first two bdes are the FCP_CMD and FCP_RSP. |
881 | * The balance are sg list bdes. Initialize the | |
882 | * first two and leave the rest for queuecommand. | |
da0436e9 JS |
883 | */ |
884 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(pdma_phys_fcp_cmd)); | |
885 | sgl->addr_lo = cpu_to_le32(putPaddrLow(pdma_phys_fcp_cmd)); | |
0558056c | 886 | sgl->word2 = le32_to_cpu(sgl->word2); |
da0436e9 JS |
887 | bf_set(lpfc_sli4_sge_last, sgl, 0); |
888 | sgl->word2 = cpu_to_le32(sgl->word2); | |
28baac74 | 889 | sgl->sge_len = cpu_to_le32(sizeof(struct fcp_cmnd)); |
da0436e9 JS |
890 | sgl++; |
891 | ||
892 | /* Setup the physical region for the FCP RSP */ | |
893 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(pdma_phys_fcp_rsp)); | |
894 | sgl->addr_lo = cpu_to_le32(putPaddrLow(pdma_phys_fcp_rsp)); | |
0558056c | 895 | sgl->word2 = le32_to_cpu(sgl->word2); |
da0436e9 JS |
896 | bf_set(lpfc_sli4_sge_last, sgl, 1); |
897 | sgl->word2 = cpu_to_le32(sgl->word2); | |
28baac74 | 898 | sgl->sge_len = cpu_to_le32(sizeof(struct fcp_rsp)); |
da0436e9 JS |
899 | |
900 | /* | |
901 | * Since the IOCB for the FCP I/O is built into this | |
902 | * lpfc_scsi_buf, initialize it with all known data now. | |
903 | */ | |
904 | iocb = &psb->cur_iocbq.iocb; | |
905 | iocb->un.fcpi64.bdl.ulpIoTag32 = 0; | |
906 | iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BDE_64; | |
907 | /* setting the BLP size to 2 * sizeof BDE may not be correct. | |
908 | * We are setting the bpl to point to out sgl. An sgl's | |
909 | * entries are 16 bytes, a bpl entries are 12 bytes. | |
910 | */ | |
911 | iocb->un.fcpi64.bdl.bdeSize = sizeof(struct fcp_cmnd); | |
912 | iocb->un.fcpi64.bdl.addrLow = putPaddrLow(pdma_phys_fcp_cmd); | |
913 | iocb->un.fcpi64.bdl.addrHigh = putPaddrHigh(pdma_phys_fcp_cmd); | |
914 | iocb->ulpBdeCount = 1; | |
915 | iocb->ulpLe = 1; | |
916 | iocb->ulpClass = CLASS3; | |
8a9d2e80 | 917 | psb->cur_iocbq.context1 = psb; |
da0436e9 | 918 | psb->dma_phys_bpl = pdma_phys_bpl; |
da0436e9 | 919 | |
8a9d2e80 JS |
920 | /* add the scsi buffer to a post list */ |
921 | list_add_tail(&psb->list, &post_sblist); | |
a40fc5f0 | 922 | spin_lock_irq(&phba->scsi_buf_list_get_lock); |
8a9d2e80 | 923 | phba->sli4_hba.scsi_xri_cnt++; |
a40fc5f0 | 924 | spin_unlock_irq(&phba->scsi_buf_list_get_lock); |
8a9d2e80 JS |
925 | } |
926 | lpfc_printf_log(phba, KERN_INFO, LOG_BG, | |
927 | "3021 Allocate %d out of %d requested new SCSI " | |
928 | "buffers\n", bcnt, num_to_alloc); | |
929 | ||
930 | /* post the list of scsi buffer sgls to port if available */ | |
931 | if (!list_empty(&post_sblist)) | |
932 | num_posted = lpfc_sli4_post_scsi_sgl_list(phba, | |
933 | &post_sblist, bcnt); | |
934 | else | |
935 | num_posted = 0; | |
936 | ||
937 | return num_posted; | |
da0436e9 JS |
938 | } |
939 | ||
9bad7671 | 940 | /** |
3772a991 JS |
941 | * lpfc_new_scsi_buf - Wrapper funciton for scsi buffer allocator |
942 | * @vport: The virtual port for which this call being executed. | |
943 | * @num_to_allocate: The requested number of buffers to allocate. | |
944 | * | |
945 | * This routine wraps the actual SCSI buffer allocator function pointer from | |
946 | * the lpfc_hba struct. | |
947 | * | |
948 | * Return codes: | |
949 | * int - number of scsi buffers that were allocated. | |
950 | * 0 = failure, less than num_to_alloc is a partial failure. | |
951 | **/ | |
952 | static inline int | |
953 | lpfc_new_scsi_buf(struct lpfc_vport *vport, int num_to_alloc) | |
954 | { | |
955 | return vport->phba->lpfc_new_scsi_buf(vport, num_to_alloc); | |
956 | } | |
957 | ||
958 | /** | |
19ca7609 | 959 | * lpfc_get_scsi_buf_s3 - Get a scsi buffer from lpfc_scsi_buf_list of the HBA |
3772a991 | 960 | * @phba: The HBA for which this call is being executed. |
9bad7671 JS |
961 | * |
962 | * This routine removes a scsi buffer from head of @phba lpfc_scsi_buf_list list | |
963 | * and returns to caller. | |
964 | * | |
965 | * Return codes: | |
966 | * NULL - Error | |
967 | * Pointer to lpfc_scsi_buf - Success | |
968 | **/ | |
455c53ec | 969 | static struct lpfc_scsi_buf* |
19ca7609 | 970 | lpfc_get_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) |
dea3101e | 971 | { |
0bd4ca25 | 972 | struct lpfc_scsi_buf * lpfc_cmd = NULL; |
a40fc5f0 | 973 | struct list_head *scsi_buf_list_get = &phba->lpfc_scsi_buf_list_get; |
164cecd1 | 974 | unsigned long iflag = 0; |
a40fc5f0 | 975 | |
164cecd1 | 976 | spin_lock_irqsave(&phba->scsi_buf_list_get_lock, iflag); |
a40fc5f0 JS |
977 | list_remove_head(scsi_buf_list_get, lpfc_cmd, struct lpfc_scsi_buf, |
978 | list); | |
979 | if (!lpfc_cmd) { | |
164cecd1 | 980 | spin_lock(&phba->scsi_buf_list_put_lock); |
a40fc5f0 JS |
981 | list_splice(&phba->lpfc_scsi_buf_list_put, |
982 | &phba->lpfc_scsi_buf_list_get); | |
983 | INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); | |
984 | list_remove_head(scsi_buf_list_get, lpfc_cmd, | |
985 | struct lpfc_scsi_buf, list); | |
164cecd1 | 986 | spin_unlock(&phba->scsi_buf_list_put_lock); |
1dcb58e5 | 987 | } |
164cecd1 | 988 | spin_unlock_irqrestore(&phba->scsi_buf_list_get_lock, iflag); |
0bd4ca25 JSEC |
989 | return lpfc_cmd; |
990 | } | |
19ca7609 JS |
991 | /** |
992 | * lpfc_get_scsi_buf_s4 - Get a scsi buffer from lpfc_scsi_buf_list of the HBA | |
993 | * @phba: The HBA for which this call is being executed. | |
994 | * | |
995 | * This routine removes a scsi buffer from head of @phba lpfc_scsi_buf_list list | |
996 | * and returns to caller. | |
997 | * | |
998 | * Return codes: | |
999 | * NULL - Error | |
1000 | * Pointer to lpfc_scsi_buf - Success | |
1001 | **/ | |
1002 | static struct lpfc_scsi_buf* | |
1003 | lpfc_get_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) | |
1004 | { | |
3be30e0e | 1005 | struct lpfc_scsi_buf *lpfc_cmd, *lpfc_cmd_next; |
164cecd1 | 1006 | unsigned long iflag = 0; |
19ca7609 JS |
1007 | int found = 0; |
1008 | ||
164cecd1 | 1009 | spin_lock_irqsave(&phba->scsi_buf_list_get_lock, iflag); |
3be30e0e JS |
1010 | list_for_each_entry_safe(lpfc_cmd, lpfc_cmd_next, |
1011 | &phba->lpfc_scsi_buf_list_get, list) { | |
19ca7609 | 1012 | if (lpfc_test_rrq_active(phba, ndlp, |
ee0f4fe1 | 1013 | lpfc_cmd->cur_iocbq.sli4_lxritag)) |
1151e3ec JS |
1014 | continue; |
1015 | list_del(&lpfc_cmd->list); | |
19ca7609 | 1016 | found = 1; |
1151e3ec | 1017 | break; |
19ca7609 | 1018 | } |
a40fc5f0 | 1019 | if (!found) { |
164cecd1 | 1020 | spin_lock(&phba->scsi_buf_list_put_lock); |
a40fc5f0 JS |
1021 | list_splice(&phba->lpfc_scsi_buf_list_put, |
1022 | &phba->lpfc_scsi_buf_list_get); | |
1023 | INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); | |
164cecd1 | 1024 | spin_unlock(&phba->scsi_buf_list_put_lock); |
3be30e0e JS |
1025 | list_for_each_entry_safe(lpfc_cmd, lpfc_cmd_next, |
1026 | &phba->lpfc_scsi_buf_list_get, list) { | |
a40fc5f0 JS |
1027 | if (lpfc_test_rrq_active( |
1028 | phba, ndlp, lpfc_cmd->cur_iocbq.sli4_lxritag)) | |
1029 | continue; | |
1030 | list_del(&lpfc_cmd->list); | |
1031 | found = 1; | |
1032 | break; | |
1033 | } | |
1034 | } | |
164cecd1 | 1035 | spin_unlock_irqrestore(&phba->scsi_buf_list_get_lock, iflag); |
1151e3ec JS |
1036 | if (!found) |
1037 | return NULL; | |
a40fc5f0 | 1038 | return lpfc_cmd; |
19ca7609 JS |
1039 | } |
1040 | /** | |
1041 | * lpfc_get_scsi_buf - Get a scsi buffer from lpfc_scsi_buf_list of the HBA | |
1042 | * @phba: The HBA for which this call is being executed. | |
1043 | * | |
1044 | * This routine removes a scsi buffer from head of @phba lpfc_scsi_buf_list list | |
1045 | * and returns to caller. | |
1046 | * | |
1047 | * Return codes: | |
1048 | * NULL - Error | |
1049 | * Pointer to lpfc_scsi_buf - Success | |
1050 | **/ | |
1051 | static struct lpfc_scsi_buf* | |
1052 | lpfc_get_scsi_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) | |
1053 | { | |
1054 | return phba->lpfc_get_scsi_buf(phba, ndlp); | |
1055 | } | |
dea3101e | 1056 | |
9bad7671 | 1057 | /** |
3772a991 | 1058 | * lpfc_release_scsi_buf - Return a scsi buffer back to hba scsi buf list |
9bad7671 JS |
1059 | * @phba: The Hba for which this call is being executed. |
1060 | * @psb: The scsi buffer which is being released. | |
1061 | * | |
1062 | * This routine releases @psb scsi buffer by adding it to tail of @phba | |
1063 | * lpfc_scsi_buf_list list. | |
1064 | **/ | |
0bd4ca25 | 1065 | static void |
3772a991 | 1066 | lpfc_release_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) |
0bd4ca25 | 1067 | { |
875fbdfe | 1068 | unsigned long iflag = 0; |
dea3101e | 1069 | |
a40fc5f0 JS |
1070 | psb->seg_cnt = 0; |
1071 | psb->nonsg_phys = 0; | |
1072 | psb->prot_seg_cnt = 0; | |
1073 | ||
1074 | spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag); | |
0bd4ca25 | 1075 | psb->pCmd = NULL; |
6a485eb9 | 1076 | psb->cur_iocbq.iocb_flag = LPFC_IO_FCP; |
a40fc5f0 JS |
1077 | list_add_tail(&psb->list, &phba->lpfc_scsi_buf_list_put); |
1078 | spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag); | |
dea3101e | 1079 | } |
1080 | ||
da0436e9 JS |
1081 | /** |
1082 | * lpfc_release_scsi_buf_s4: Return a scsi buffer back to hba scsi buf list. | |
1083 | * @phba: The Hba for which this call is being executed. | |
1084 | * @psb: The scsi buffer which is being released. | |
1085 | * | |
1086 | * This routine releases @psb scsi buffer by adding it to tail of @phba | |
1087 | * lpfc_scsi_buf_list list. For SLI4 XRI's are tied to the scsi buffer | |
1088 | * and cannot be reused for at least RA_TOV amount of time if it was | |
1089 | * aborted. | |
1090 | **/ | |
1091 | static void | |
1092 | lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) | |
1093 | { | |
1094 | unsigned long iflag = 0; | |
1095 | ||
a40fc5f0 JS |
1096 | psb->seg_cnt = 0; |
1097 | psb->nonsg_phys = 0; | |
1098 | psb->prot_seg_cnt = 0; | |
1099 | ||
341af102 | 1100 | if (psb->exch_busy) { |
da0436e9 JS |
1101 | spin_lock_irqsave(&phba->sli4_hba.abts_scsi_buf_list_lock, |
1102 | iflag); | |
1103 | psb->pCmd = NULL; | |
1104 | list_add_tail(&psb->list, | |
1105 | &phba->sli4_hba.lpfc_abts_scsi_buf_list); | |
1106 | spin_unlock_irqrestore(&phba->sli4_hba.abts_scsi_buf_list_lock, | |
1107 | iflag); | |
1108 | } else { | |
da0436e9 | 1109 | psb->pCmd = NULL; |
6a485eb9 | 1110 | psb->cur_iocbq.iocb_flag = LPFC_IO_FCP; |
a40fc5f0 JS |
1111 | spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag); |
1112 | list_add_tail(&psb->list, &phba->lpfc_scsi_buf_list_put); | |
1113 | spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag); | |
da0436e9 JS |
1114 | } |
1115 | } | |
1116 | ||
9bad7671 | 1117 | /** |
3772a991 JS |
1118 | * lpfc_release_scsi_buf: Return a scsi buffer back to hba scsi buf list. |
1119 | * @phba: The Hba for which this call is being executed. | |
1120 | * @psb: The scsi buffer which is being released. | |
1121 | * | |
1122 | * This routine releases @psb scsi buffer by adding it to tail of @phba | |
1123 | * lpfc_scsi_buf_list list. | |
1124 | **/ | |
1125 | static void | |
1126 | lpfc_release_scsi_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) | |
1127 | { | |
1128 | ||
1129 | phba->lpfc_release_scsi_buf(phba, psb); | |
1130 | } | |
1131 | ||
4fbdf9cb JS |
1132 | /** |
1133 | * lpfc_fcpcmd_to_iocb - copy the fcp_cmd data into the IOCB | |
1134 | * @data: A pointer to the immediate command data portion of the IOCB. | |
1135 | * @fcp_cmnd: The FCP Command that is provided by the SCSI layer. | |
1136 | * | |
1137 | * The routine copies the entire FCP command from @fcp_cmnd to @data while | |
1138 | * byte swapping the data to big endian format for transmission on the wire. | |
1139 | **/ | |
1140 | static void | |
1141 | lpfc_fcpcmd_to_iocb(uint8_t *data, struct fcp_cmnd *fcp_cmnd) | |
1142 | { | |
1143 | int i, j; | |
1144 | ||
1145 | for (i = 0, j = 0; i < sizeof(struct fcp_cmnd); | |
1146 | i += sizeof(uint32_t), j++) { | |
1147 | ((uint32_t *)data)[j] = cpu_to_be32(((uint32_t *)fcp_cmnd)[j]); | |
1148 | } | |
1149 | } | |
1150 | ||
3772a991 JS |
1151 | /** |
1152 | * lpfc_scsi_prep_dma_buf_s3 - DMA mapping for scsi buffer to SLI3 IF spec | |
9bad7671 JS |
1153 | * @phba: The Hba for which this call is being executed. |
1154 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
1155 | * | |
1156 | * This routine does the pci dma mapping for scatter-gather list of scsi cmnd | |
3772a991 JS |
1157 | * field of @lpfc_cmd for device with SLI-3 interface spec. This routine scans |
1158 | * through sg elements and format the bdea. This routine also initializes all | |
1159 | * IOCB fields which are dependent on scsi command request buffer. | |
9bad7671 JS |
1160 | * |
1161 | * Return codes: | |
1162 | * 1 - Error | |
1163 | * 0 - Success | |
1164 | **/ | |
dea3101e | 1165 | static int |
3772a991 | 1166 | lpfc_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) |
dea3101e | 1167 | { |
1168 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
1169 | struct scatterlist *sgel = NULL; | |
1170 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
1171 | struct ulp_bde64 *bpl = lpfc_cmd->fcp_bpl; | |
0f65ff68 | 1172 | struct lpfc_iocbq *iocbq = &lpfc_cmd->cur_iocbq; |
dea3101e | 1173 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; |
34b02dcd | 1174 | struct ulp_bde64 *data_bde = iocb_cmd->unsli3.fcp_ext.dbde; |
dea3101e | 1175 | dma_addr_t physaddr; |
34b02dcd | 1176 | uint32_t num_bde = 0; |
a0b4f78f | 1177 | int nseg, datadir = scsi_cmnd->sc_data_direction; |
dea3101e | 1178 | |
1179 | /* | |
1180 | * There are three possibilities here - use scatter-gather segment, use | |
1181 | * the single mapping, or neither. Start the lpfc command prep by | |
1182 | * bumping the bpl beyond the fcp_cmnd and fcp_rsp regions to the first | |
1183 | * data bde entry. | |
1184 | */ | |
1185 | bpl += 2; | |
c59fd9eb | 1186 | if (scsi_sg_count(scsi_cmnd)) { |
dea3101e | 1187 | /* |
1188 | * The driver stores the segment count returned from pci_map_sg | |
1189 | * because this a count of dma-mappings used to map the use_sg | |
1190 | * pages. They are not guaranteed to be the same for those | |
1191 | * architectures that implement an IOMMU. | |
1192 | */ | |
dea3101e | 1193 | |
c59fd9eb FT |
1194 | nseg = dma_map_sg(&phba->pcidev->dev, scsi_sglist(scsi_cmnd), |
1195 | scsi_sg_count(scsi_cmnd), datadir); | |
1196 | if (unlikely(!nseg)) | |
1197 | return 1; | |
1198 | ||
a0b4f78f | 1199 | lpfc_cmd->seg_cnt = nseg; |
dea3101e | 1200 | if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) { |
6a9c52cf JS |
1201 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
1202 | "9064 BLKGRD: %s: Too many sg segments from " | |
e2a0a9d6 | 1203 | "dma_map_sg. Config %d, seg_cnt %d\n", |
cadbd4a5 | 1204 | __func__, phba->cfg_sg_seg_cnt, |
dea3101e | 1205 | lpfc_cmd->seg_cnt); |
96f7077f | 1206 | lpfc_cmd->seg_cnt = 0; |
a0b4f78f | 1207 | scsi_dma_unmap(scsi_cmnd); |
dea3101e | 1208 | return 1; |
1209 | } | |
1210 | ||
1211 | /* | |
1212 | * The driver established a maximum scatter-gather segment count | |
1213 | * during probe that limits the number of sg elements in any | |
1214 | * single scsi command. Just run through the seg_cnt and format | |
1215 | * the bde's. | |
34b02dcd JS |
1216 | * When using SLI-3 the driver will try to fit all the BDEs into |
1217 | * the IOCB. If it can't then the BDEs get added to a BPL as it | |
1218 | * does for SLI-2 mode. | |
dea3101e | 1219 | */ |
34b02dcd | 1220 | scsi_for_each_sg(scsi_cmnd, sgel, nseg, num_bde) { |
dea3101e | 1221 | physaddr = sg_dma_address(sgel); |
34b02dcd | 1222 | if (phba->sli_rev == 3 && |
e2a0a9d6 | 1223 | !(phba->sli3_options & LPFC_SLI3_BG_ENABLED) && |
0f65ff68 | 1224 | !(iocbq->iocb_flag & DSS_SECURITY_OP) && |
34b02dcd JS |
1225 | nseg <= LPFC_EXT_DATA_BDE_COUNT) { |
1226 | data_bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
1227 | data_bde->tus.f.bdeSize = sg_dma_len(sgel); | |
1228 | data_bde->addrLow = putPaddrLow(physaddr); | |
1229 | data_bde->addrHigh = putPaddrHigh(physaddr); | |
1230 | data_bde++; | |
1231 | } else { | |
1232 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
1233 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
1234 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
1235 | bpl->addrLow = | |
1236 | le32_to_cpu(putPaddrLow(physaddr)); | |
1237 | bpl->addrHigh = | |
1238 | le32_to_cpu(putPaddrHigh(physaddr)); | |
1239 | bpl++; | |
1240 | } | |
dea3101e | 1241 | } |
c59fd9eb | 1242 | } |
dea3101e | 1243 | |
1244 | /* | |
1245 | * Finish initializing those IOCB fields that are dependent on the | |
34b02dcd JS |
1246 | * scsi_cmnd request_buffer. Note that for SLI-2 the bdeSize is |
1247 | * explicitly reinitialized and for SLI-3 the extended bde count is | |
1248 | * explicitly reinitialized since all iocb memory resources are reused. | |
dea3101e | 1249 | */ |
e2a0a9d6 | 1250 | if (phba->sli_rev == 3 && |
0f65ff68 JS |
1251 | !(phba->sli3_options & LPFC_SLI3_BG_ENABLED) && |
1252 | !(iocbq->iocb_flag & DSS_SECURITY_OP)) { | |
34b02dcd JS |
1253 | if (num_bde > LPFC_EXT_DATA_BDE_COUNT) { |
1254 | /* | |
1255 | * The extended IOCB format can only fit 3 BDE or a BPL. | |
1256 | * This I/O has more than 3 BDE so the 1st data bde will | |
1257 | * be a BPL that is filled in here. | |
1258 | */ | |
1259 | physaddr = lpfc_cmd->dma_handle; | |
1260 | data_bde->tus.f.bdeFlags = BUFF_TYPE_BLP_64; | |
1261 | data_bde->tus.f.bdeSize = (num_bde * | |
1262 | sizeof(struct ulp_bde64)); | |
1263 | physaddr += (sizeof(struct fcp_cmnd) + | |
1264 | sizeof(struct fcp_rsp) + | |
1265 | (2 * sizeof(struct ulp_bde64))); | |
1266 | data_bde->addrHigh = putPaddrHigh(physaddr); | |
1267 | data_bde->addrLow = putPaddrLow(physaddr); | |
25985edc | 1268 | /* ebde count includes the response bde and data bpl */ |
34b02dcd JS |
1269 | iocb_cmd->unsli3.fcp_ext.ebde_count = 2; |
1270 | } else { | |
25985edc | 1271 | /* ebde count includes the response bde and data bdes */ |
34b02dcd JS |
1272 | iocb_cmd->unsli3.fcp_ext.ebde_count = (num_bde + 1); |
1273 | } | |
1274 | } else { | |
1275 | iocb_cmd->un.fcpi64.bdl.bdeSize = | |
1276 | ((num_bde + 2) * sizeof(struct ulp_bde64)); | |
0f65ff68 | 1277 | iocb_cmd->unsli3.fcp_ext.ebde_count = (num_bde + 1); |
34b02dcd | 1278 | } |
09372820 | 1279 | fcp_cmnd->fcpDl = cpu_to_be32(scsi_bufflen(scsi_cmnd)); |
e2a0a9d6 JS |
1280 | |
1281 | /* | |
1282 | * Due to difference in data length between DIF/non-DIF paths, | |
1283 | * we need to set word 4 of IOCB here | |
1284 | */ | |
a257bf90 | 1285 | iocb_cmd->un.fcpi.fcpi_parm = scsi_bufflen(scsi_cmnd); |
4fbdf9cb | 1286 | lpfc_fcpcmd_to_iocb(iocb_cmd->unsli3.fcp_ext.icd, fcp_cmnd); |
e2a0a9d6 JS |
1287 | return 0; |
1288 | } | |
1289 | ||
f9bb2da1 | 1290 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 1291 | |
9a6b09c0 JS |
1292 | /* Return if if error injection is detected by Initiator */ |
1293 | #define BG_ERR_INIT 0x1 | |
1294 | /* Return if if error injection is detected by Target */ | |
1295 | #define BG_ERR_TGT 0x2 | |
1296 | /* Return if if swapping CSUM<-->CRC is required for error injection */ | |
1297 | #define BG_ERR_SWAP 0x10 | |
1298 | /* Return if disabling Guard/Ref/App checking is required for error injection */ | |
1299 | #define BG_ERR_CHECK 0x20 | |
acd6859b JS |
1300 | |
1301 | /** | |
1302 | * lpfc_bg_err_inject - Determine if we should inject an error | |
1303 | * @phba: The Hba for which this call is being executed. | |
f9bb2da1 JS |
1304 | * @sc: The SCSI command to examine |
1305 | * @reftag: (out) BlockGuard reference tag for transmitted data | |
1306 | * @apptag: (out) BlockGuard application tag for transmitted data | |
1307 | * @new_guard (in) Value to replace CRC with if needed | |
1308 | * | |
9a6b09c0 | 1309 | * Returns BG_ERR_* bit mask or 0 if request ignored |
acd6859b | 1310 | **/ |
f9bb2da1 JS |
1311 | static int |
1312 | lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
1313 | uint32_t *reftag, uint16_t *apptag, uint32_t new_guard) | |
1314 | { | |
1315 | struct scatterlist *sgpe; /* s/g prot entry */ | |
1316 | struct scatterlist *sgde; /* s/g data entry */ | |
9a6b09c0 | 1317 | struct lpfc_scsi_buf *lpfc_cmd = NULL; |
acd6859b | 1318 | struct scsi_dif_tuple *src = NULL; |
4ac9b226 JS |
1319 | struct lpfc_nodelist *ndlp; |
1320 | struct lpfc_rport_data *rdata; | |
f9bb2da1 JS |
1321 | uint32_t op = scsi_get_prot_op(sc); |
1322 | uint32_t blksize; | |
1323 | uint32_t numblks; | |
1324 | sector_t lba; | |
1325 | int rc = 0; | |
acd6859b | 1326 | int blockoff = 0; |
f9bb2da1 JS |
1327 | |
1328 | if (op == SCSI_PROT_NORMAL) | |
1329 | return 0; | |
1330 | ||
acd6859b JS |
1331 | sgpe = scsi_prot_sglist(sc); |
1332 | sgde = scsi_sglist(sc); | |
f9bb2da1 | 1333 | lba = scsi_get_lba(sc); |
4ac9b226 JS |
1334 | |
1335 | /* First check if we need to match the LBA */ | |
f9bb2da1 JS |
1336 | if (phba->lpfc_injerr_lba != LPFC_INJERR_LBA_OFF) { |
1337 | blksize = lpfc_cmd_blksize(sc); | |
1338 | numblks = (scsi_bufflen(sc) + blksize - 1) / blksize; | |
1339 | ||
1340 | /* Make sure we have the right LBA if one is specified */ | |
1341 | if ((phba->lpfc_injerr_lba < lba) || | |
1342 | (phba->lpfc_injerr_lba >= (lba + numblks))) | |
1343 | return 0; | |
acd6859b JS |
1344 | if (sgpe) { |
1345 | blockoff = phba->lpfc_injerr_lba - lba; | |
1346 | numblks = sg_dma_len(sgpe) / | |
1347 | sizeof(struct scsi_dif_tuple); | |
1348 | if (numblks < blockoff) | |
1349 | blockoff = numblks; | |
acd6859b | 1350 | } |
f9bb2da1 JS |
1351 | } |
1352 | ||
4ac9b226 | 1353 | /* Next check if we need to match the remote NPortID or WWPN */ |
1ba981fd | 1354 | rdata = lpfc_rport_data_from_scsi_device(sc->device); |
4ac9b226 JS |
1355 | if (rdata && rdata->pnode) { |
1356 | ndlp = rdata->pnode; | |
1357 | ||
1358 | /* Make sure we have the right NPortID if one is specified */ | |
1359 | if (phba->lpfc_injerr_nportid && | |
1360 | (phba->lpfc_injerr_nportid != ndlp->nlp_DID)) | |
1361 | return 0; | |
1362 | ||
1363 | /* | |
1364 | * Make sure we have the right WWPN if one is specified. | |
1365 | * wwn[0] should be a non-zero NAA in a good WWPN. | |
1366 | */ | |
1367 | if (phba->lpfc_injerr_wwpn.u.wwn[0] && | |
1368 | (memcmp(&ndlp->nlp_portname, &phba->lpfc_injerr_wwpn, | |
1369 | sizeof(struct lpfc_name)) != 0)) | |
1370 | return 0; | |
1371 | } | |
1372 | ||
1373 | /* Setup a ptr to the protection data if the SCSI host provides it */ | |
1374 | if (sgpe) { | |
1375 | src = (struct scsi_dif_tuple *)sg_virt(sgpe); | |
1376 | src += blockoff; | |
1377 | lpfc_cmd = (struct lpfc_scsi_buf *)sc->host_scribble; | |
1378 | } | |
1379 | ||
f9bb2da1 JS |
1380 | /* Should we change the Reference Tag */ |
1381 | if (reftag) { | |
acd6859b JS |
1382 | if (phba->lpfc_injerr_wref_cnt) { |
1383 | switch (op) { | |
1384 | case SCSI_PROT_WRITE_PASS: | |
9a6b09c0 JS |
1385 | if (src) { |
1386 | /* | |
1387 | * For WRITE_PASS, force the error | |
1388 | * to be sent on the wire. It should | |
1389 | * be detected by the Target. | |
1390 | * If blockoff != 0 error will be | |
1391 | * inserted in middle of the IO. | |
1392 | */ | |
acd6859b JS |
1393 | |
1394 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
1395 | "9076 BLKGRD: Injecting reftag error: " | |
1396 | "write lba x%lx + x%x oldrefTag x%x\n", | |
1397 | (unsigned long)lba, blockoff, | |
9a6b09c0 | 1398 | be32_to_cpu(src->ref_tag)); |
f9bb2da1 | 1399 | |
acd6859b | 1400 | /* |
9a6b09c0 JS |
1401 | * Save the old ref_tag so we can |
1402 | * restore it on completion. | |
acd6859b | 1403 | */ |
9a6b09c0 JS |
1404 | if (lpfc_cmd) { |
1405 | lpfc_cmd->prot_data_type = | |
1406 | LPFC_INJERR_REFTAG; | |
1407 | lpfc_cmd->prot_data_segment = | |
1408 | src; | |
1409 | lpfc_cmd->prot_data = | |
1410 | src->ref_tag; | |
1411 | } | |
1412 | src->ref_tag = cpu_to_be32(0xDEADBEEF); | |
acd6859b | 1413 | phba->lpfc_injerr_wref_cnt--; |
4ac9b226 JS |
1414 | if (phba->lpfc_injerr_wref_cnt == 0) { |
1415 | phba->lpfc_injerr_nportid = 0; | |
1416 | phba->lpfc_injerr_lba = | |
1417 | LPFC_INJERR_LBA_OFF; | |
1418 | memset(&phba->lpfc_injerr_wwpn, | |
1419 | 0, sizeof(struct lpfc_name)); | |
1420 | } | |
9a6b09c0 JS |
1421 | rc = BG_ERR_TGT | BG_ERR_CHECK; |
1422 | ||
acd6859b JS |
1423 | break; |
1424 | } | |
1425 | /* Drop thru */ | |
9a6b09c0 | 1426 | case SCSI_PROT_WRITE_INSERT: |
acd6859b | 1427 | /* |
9a6b09c0 JS |
1428 | * For WRITE_INSERT, force the error |
1429 | * to be sent on the wire. It should be | |
1430 | * detected by the Target. | |
acd6859b | 1431 | */ |
9a6b09c0 | 1432 | /* DEADBEEF will be the reftag on the wire */ |
acd6859b JS |
1433 | *reftag = 0xDEADBEEF; |
1434 | phba->lpfc_injerr_wref_cnt--; | |
4ac9b226 JS |
1435 | if (phba->lpfc_injerr_wref_cnt == 0) { |
1436 | phba->lpfc_injerr_nportid = 0; | |
1437 | phba->lpfc_injerr_lba = | |
1438 | LPFC_INJERR_LBA_OFF; | |
1439 | memset(&phba->lpfc_injerr_wwpn, | |
1440 | 0, sizeof(struct lpfc_name)); | |
1441 | } | |
9a6b09c0 | 1442 | rc = BG_ERR_TGT | BG_ERR_CHECK; |
acd6859b JS |
1443 | |
1444 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
9a6b09c0 | 1445 | "9078 BLKGRD: Injecting reftag error: " |
acd6859b JS |
1446 | "write lba x%lx\n", (unsigned long)lba); |
1447 | break; | |
9a6b09c0 | 1448 | case SCSI_PROT_WRITE_STRIP: |
acd6859b | 1449 | /* |
9a6b09c0 JS |
1450 | * For WRITE_STRIP and WRITE_PASS, |
1451 | * force the error on data | |
1452 | * being copied from SLI-Host to SLI-Port. | |
acd6859b | 1453 | */ |
f9bb2da1 JS |
1454 | *reftag = 0xDEADBEEF; |
1455 | phba->lpfc_injerr_wref_cnt--; | |
4ac9b226 JS |
1456 | if (phba->lpfc_injerr_wref_cnt == 0) { |
1457 | phba->lpfc_injerr_nportid = 0; | |
1458 | phba->lpfc_injerr_lba = | |
1459 | LPFC_INJERR_LBA_OFF; | |
1460 | memset(&phba->lpfc_injerr_wwpn, | |
1461 | 0, sizeof(struct lpfc_name)); | |
1462 | } | |
9a6b09c0 | 1463 | rc = BG_ERR_INIT; |
f9bb2da1 JS |
1464 | |
1465 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
9a6b09c0 | 1466 | "9077 BLKGRD: Injecting reftag error: " |
f9bb2da1 | 1467 | "write lba x%lx\n", (unsigned long)lba); |
acd6859b | 1468 | break; |
f9bb2da1 | 1469 | } |
acd6859b JS |
1470 | } |
1471 | if (phba->lpfc_injerr_rref_cnt) { | |
1472 | switch (op) { | |
1473 | case SCSI_PROT_READ_INSERT: | |
acd6859b JS |
1474 | case SCSI_PROT_READ_STRIP: |
1475 | case SCSI_PROT_READ_PASS: | |
1476 | /* | |
1477 | * For READ_STRIP and READ_PASS, force the | |
1478 | * error on data being read off the wire. It | |
1479 | * should force an IO error to the driver. | |
1480 | */ | |
f9bb2da1 JS |
1481 | *reftag = 0xDEADBEEF; |
1482 | phba->lpfc_injerr_rref_cnt--; | |
4ac9b226 JS |
1483 | if (phba->lpfc_injerr_rref_cnt == 0) { |
1484 | phba->lpfc_injerr_nportid = 0; | |
1485 | phba->lpfc_injerr_lba = | |
1486 | LPFC_INJERR_LBA_OFF; | |
1487 | memset(&phba->lpfc_injerr_wwpn, | |
1488 | 0, sizeof(struct lpfc_name)); | |
1489 | } | |
acd6859b | 1490 | rc = BG_ERR_INIT; |
f9bb2da1 JS |
1491 | |
1492 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
acd6859b | 1493 | "9079 BLKGRD: Injecting reftag error: " |
f9bb2da1 | 1494 | "read lba x%lx\n", (unsigned long)lba); |
acd6859b | 1495 | break; |
f9bb2da1 JS |
1496 | } |
1497 | } | |
1498 | } | |
1499 | ||
1500 | /* Should we change the Application Tag */ | |
1501 | if (apptag) { | |
acd6859b JS |
1502 | if (phba->lpfc_injerr_wapp_cnt) { |
1503 | switch (op) { | |
1504 | case SCSI_PROT_WRITE_PASS: | |
4ac9b226 | 1505 | if (src) { |
9a6b09c0 JS |
1506 | /* |
1507 | * For WRITE_PASS, force the error | |
1508 | * to be sent on the wire. It should | |
1509 | * be detected by the Target. | |
1510 | * If blockoff != 0 error will be | |
1511 | * inserted in middle of the IO. | |
1512 | */ | |
1513 | ||
acd6859b JS |
1514 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
1515 | "9080 BLKGRD: Injecting apptag error: " | |
1516 | "write lba x%lx + x%x oldappTag x%x\n", | |
1517 | (unsigned long)lba, blockoff, | |
9a6b09c0 | 1518 | be16_to_cpu(src->app_tag)); |
acd6859b JS |
1519 | |
1520 | /* | |
9a6b09c0 JS |
1521 | * Save the old app_tag so we can |
1522 | * restore it on completion. | |
acd6859b | 1523 | */ |
9a6b09c0 JS |
1524 | if (lpfc_cmd) { |
1525 | lpfc_cmd->prot_data_type = | |
1526 | LPFC_INJERR_APPTAG; | |
1527 | lpfc_cmd->prot_data_segment = | |
1528 | src; | |
1529 | lpfc_cmd->prot_data = | |
1530 | src->app_tag; | |
1531 | } | |
1532 | src->app_tag = cpu_to_be16(0xDEAD); | |
acd6859b | 1533 | phba->lpfc_injerr_wapp_cnt--; |
4ac9b226 JS |
1534 | if (phba->lpfc_injerr_wapp_cnt == 0) { |
1535 | phba->lpfc_injerr_nportid = 0; | |
1536 | phba->lpfc_injerr_lba = | |
1537 | LPFC_INJERR_LBA_OFF; | |
1538 | memset(&phba->lpfc_injerr_wwpn, | |
1539 | 0, sizeof(struct lpfc_name)); | |
1540 | } | |
9a6b09c0 | 1541 | rc = BG_ERR_TGT | BG_ERR_CHECK; |
acd6859b JS |
1542 | break; |
1543 | } | |
1544 | /* Drop thru */ | |
9a6b09c0 | 1545 | case SCSI_PROT_WRITE_INSERT: |
acd6859b | 1546 | /* |
9a6b09c0 JS |
1547 | * For WRITE_INSERT, force the |
1548 | * error to be sent on the wire. It should be | |
1549 | * detected by the Target. | |
acd6859b | 1550 | */ |
9a6b09c0 | 1551 | /* DEAD will be the apptag on the wire */ |
acd6859b JS |
1552 | *apptag = 0xDEAD; |
1553 | phba->lpfc_injerr_wapp_cnt--; | |
4ac9b226 JS |
1554 | if (phba->lpfc_injerr_wapp_cnt == 0) { |
1555 | phba->lpfc_injerr_nportid = 0; | |
1556 | phba->lpfc_injerr_lba = | |
1557 | LPFC_INJERR_LBA_OFF; | |
1558 | memset(&phba->lpfc_injerr_wwpn, | |
1559 | 0, sizeof(struct lpfc_name)); | |
1560 | } | |
9a6b09c0 | 1561 | rc = BG_ERR_TGT | BG_ERR_CHECK; |
f9bb2da1 | 1562 | |
acd6859b | 1563 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
9a6b09c0 | 1564 | "0813 BLKGRD: Injecting apptag error: " |
acd6859b JS |
1565 | "write lba x%lx\n", (unsigned long)lba); |
1566 | break; | |
9a6b09c0 | 1567 | case SCSI_PROT_WRITE_STRIP: |
acd6859b | 1568 | /* |
9a6b09c0 JS |
1569 | * For WRITE_STRIP and WRITE_PASS, |
1570 | * force the error on data | |
1571 | * being copied from SLI-Host to SLI-Port. | |
acd6859b | 1572 | */ |
f9bb2da1 JS |
1573 | *apptag = 0xDEAD; |
1574 | phba->lpfc_injerr_wapp_cnt--; | |
4ac9b226 JS |
1575 | if (phba->lpfc_injerr_wapp_cnt == 0) { |
1576 | phba->lpfc_injerr_nportid = 0; | |
1577 | phba->lpfc_injerr_lba = | |
1578 | LPFC_INJERR_LBA_OFF; | |
1579 | memset(&phba->lpfc_injerr_wwpn, | |
1580 | 0, sizeof(struct lpfc_name)); | |
1581 | } | |
9a6b09c0 | 1582 | rc = BG_ERR_INIT; |
f9bb2da1 JS |
1583 | |
1584 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
9a6b09c0 | 1585 | "0812 BLKGRD: Injecting apptag error: " |
f9bb2da1 | 1586 | "write lba x%lx\n", (unsigned long)lba); |
acd6859b | 1587 | break; |
f9bb2da1 | 1588 | } |
acd6859b JS |
1589 | } |
1590 | if (phba->lpfc_injerr_rapp_cnt) { | |
1591 | switch (op) { | |
1592 | case SCSI_PROT_READ_INSERT: | |
acd6859b JS |
1593 | case SCSI_PROT_READ_STRIP: |
1594 | case SCSI_PROT_READ_PASS: | |
1595 | /* | |
1596 | * For READ_STRIP and READ_PASS, force the | |
1597 | * error on data being read off the wire. It | |
1598 | * should force an IO error to the driver. | |
1599 | */ | |
f9bb2da1 JS |
1600 | *apptag = 0xDEAD; |
1601 | phba->lpfc_injerr_rapp_cnt--; | |
4ac9b226 JS |
1602 | if (phba->lpfc_injerr_rapp_cnt == 0) { |
1603 | phba->lpfc_injerr_nportid = 0; | |
1604 | phba->lpfc_injerr_lba = | |
1605 | LPFC_INJERR_LBA_OFF; | |
1606 | memset(&phba->lpfc_injerr_wwpn, | |
1607 | 0, sizeof(struct lpfc_name)); | |
1608 | } | |
acd6859b | 1609 | rc = BG_ERR_INIT; |
f9bb2da1 JS |
1610 | |
1611 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
acd6859b | 1612 | "0814 BLKGRD: Injecting apptag error: " |
f9bb2da1 | 1613 | "read lba x%lx\n", (unsigned long)lba); |
acd6859b | 1614 | break; |
f9bb2da1 JS |
1615 | } |
1616 | } | |
1617 | } | |
1618 | ||
acd6859b | 1619 | |
f9bb2da1 | 1620 | /* Should we change the Guard Tag */ |
acd6859b JS |
1621 | if (new_guard) { |
1622 | if (phba->lpfc_injerr_wgrd_cnt) { | |
1623 | switch (op) { | |
1624 | case SCSI_PROT_WRITE_PASS: | |
9a6b09c0 | 1625 | rc = BG_ERR_CHECK; |
acd6859b | 1626 | /* Drop thru */ |
9a6b09c0 JS |
1627 | |
1628 | case SCSI_PROT_WRITE_INSERT: | |
acd6859b | 1629 | /* |
9a6b09c0 JS |
1630 | * For WRITE_INSERT, force the |
1631 | * error to be sent on the wire. It should be | |
1632 | * detected by the Target. | |
acd6859b JS |
1633 | */ |
1634 | phba->lpfc_injerr_wgrd_cnt--; | |
4ac9b226 JS |
1635 | if (phba->lpfc_injerr_wgrd_cnt == 0) { |
1636 | phba->lpfc_injerr_nportid = 0; | |
1637 | phba->lpfc_injerr_lba = | |
1638 | LPFC_INJERR_LBA_OFF; | |
1639 | memset(&phba->lpfc_injerr_wwpn, | |
1640 | 0, sizeof(struct lpfc_name)); | |
1641 | } | |
f9bb2da1 | 1642 | |
9a6b09c0 | 1643 | rc |= BG_ERR_TGT | BG_ERR_SWAP; |
acd6859b | 1644 | /* Signals the caller to swap CRC->CSUM */ |
f9bb2da1 | 1645 | |
acd6859b | 1646 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
9a6b09c0 | 1647 | "0817 BLKGRD: Injecting guard error: " |
acd6859b JS |
1648 | "write lba x%lx\n", (unsigned long)lba); |
1649 | break; | |
9a6b09c0 | 1650 | case SCSI_PROT_WRITE_STRIP: |
acd6859b | 1651 | /* |
9a6b09c0 JS |
1652 | * For WRITE_STRIP and WRITE_PASS, |
1653 | * force the error on data | |
1654 | * being copied from SLI-Host to SLI-Port. | |
acd6859b JS |
1655 | */ |
1656 | phba->lpfc_injerr_wgrd_cnt--; | |
4ac9b226 JS |
1657 | if (phba->lpfc_injerr_wgrd_cnt == 0) { |
1658 | phba->lpfc_injerr_nportid = 0; | |
1659 | phba->lpfc_injerr_lba = | |
1660 | LPFC_INJERR_LBA_OFF; | |
1661 | memset(&phba->lpfc_injerr_wwpn, | |
1662 | 0, sizeof(struct lpfc_name)); | |
1663 | } | |
f9bb2da1 | 1664 | |
9a6b09c0 | 1665 | rc = BG_ERR_INIT | BG_ERR_SWAP; |
acd6859b JS |
1666 | /* Signals the caller to swap CRC->CSUM */ |
1667 | ||
1668 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
9a6b09c0 | 1669 | "0816 BLKGRD: Injecting guard error: " |
acd6859b JS |
1670 | "write lba x%lx\n", (unsigned long)lba); |
1671 | break; | |
1672 | } | |
1673 | } | |
1674 | if (phba->lpfc_injerr_rgrd_cnt) { | |
1675 | switch (op) { | |
1676 | case SCSI_PROT_READ_INSERT: | |
acd6859b JS |
1677 | case SCSI_PROT_READ_STRIP: |
1678 | case SCSI_PROT_READ_PASS: | |
1679 | /* | |
1680 | * For READ_STRIP and READ_PASS, force the | |
1681 | * error on data being read off the wire. It | |
1682 | * should force an IO error to the driver. | |
1683 | */ | |
acd6859b | 1684 | phba->lpfc_injerr_rgrd_cnt--; |
4ac9b226 JS |
1685 | if (phba->lpfc_injerr_rgrd_cnt == 0) { |
1686 | phba->lpfc_injerr_nportid = 0; | |
1687 | phba->lpfc_injerr_lba = | |
1688 | LPFC_INJERR_LBA_OFF; | |
1689 | memset(&phba->lpfc_injerr_wwpn, | |
1690 | 0, sizeof(struct lpfc_name)); | |
1691 | } | |
acd6859b | 1692 | |
9a6b09c0 | 1693 | rc = BG_ERR_INIT | BG_ERR_SWAP; |
acd6859b JS |
1694 | /* Signals the caller to swap CRC->CSUM */ |
1695 | ||
1696 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
1697 | "0818 BLKGRD: Injecting guard error: " | |
1698 | "read lba x%lx\n", (unsigned long)lba); | |
1699 | } | |
f9bb2da1 JS |
1700 | } |
1701 | } | |
acd6859b | 1702 | |
f9bb2da1 JS |
1703 | return rc; |
1704 | } | |
1705 | #endif | |
1706 | ||
acd6859b JS |
1707 | /** |
1708 | * lpfc_sc_to_bg_opcodes - Determine the BlockGuard opcodes to be used with | |
1709 | * the specified SCSI command. | |
1710 | * @phba: The Hba for which this call is being executed. | |
6c8eea54 JS |
1711 | * @sc: The SCSI command to examine |
1712 | * @txopt: (out) BlockGuard operation for transmitted data | |
1713 | * @rxopt: (out) BlockGuard operation for received data | |
1714 | * | |
1715 | * Returns: zero on success; non-zero if tx and/or rx op cannot be determined | |
1716 | * | |
acd6859b | 1717 | **/ |
e2a0a9d6 | 1718 | static int |
6c8eea54 JS |
1719 | lpfc_sc_to_bg_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc, |
1720 | uint8_t *txop, uint8_t *rxop) | |
e2a0a9d6 | 1721 | { |
6c8eea54 | 1722 | uint8_t ret = 0; |
e2a0a9d6 | 1723 | |
9c6aa9d7 | 1724 | if (lpfc_cmd_guard_csum(sc)) { |
e2a0a9d6 JS |
1725 | switch (scsi_get_prot_op(sc)) { |
1726 | case SCSI_PROT_READ_INSERT: | |
1727 | case SCSI_PROT_WRITE_STRIP: | |
6c8eea54 | 1728 | *rxop = BG_OP_IN_NODIF_OUT_CSUM; |
4ac9b226 | 1729 | *txop = BG_OP_IN_CSUM_OUT_NODIF; |
e2a0a9d6 JS |
1730 | break; |
1731 | ||
1732 | case SCSI_PROT_READ_STRIP: | |
1733 | case SCSI_PROT_WRITE_INSERT: | |
6c8eea54 | 1734 | *rxop = BG_OP_IN_CRC_OUT_NODIF; |
4ac9b226 | 1735 | *txop = BG_OP_IN_NODIF_OUT_CRC; |
e2a0a9d6 JS |
1736 | break; |
1737 | ||
c6af4042 MP |
1738 | case SCSI_PROT_READ_PASS: |
1739 | case SCSI_PROT_WRITE_PASS: | |
6c8eea54 | 1740 | *rxop = BG_OP_IN_CRC_OUT_CSUM; |
4ac9b226 | 1741 | *txop = BG_OP_IN_CSUM_OUT_CRC; |
e2a0a9d6 JS |
1742 | break; |
1743 | ||
e2a0a9d6 JS |
1744 | case SCSI_PROT_NORMAL: |
1745 | default: | |
6a9c52cf | 1746 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
7c56b9fd JS |
1747 | "9063 BLKGRD: Bad op/guard:%d/IP combination\n", |
1748 | scsi_get_prot_op(sc)); | |
6c8eea54 | 1749 | ret = 1; |
e2a0a9d6 JS |
1750 | break; |
1751 | ||
1752 | } | |
7c56b9fd | 1753 | } else { |
e2a0a9d6 JS |
1754 | switch (scsi_get_prot_op(sc)) { |
1755 | case SCSI_PROT_READ_STRIP: | |
1756 | case SCSI_PROT_WRITE_INSERT: | |
6c8eea54 | 1757 | *rxop = BG_OP_IN_CRC_OUT_NODIF; |
4ac9b226 | 1758 | *txop = BG_OP_IN_NODIF_OUT_CRC; |
e2a0a9d6 JS |
1759 | break; |
1760 | ||
1761 | case SCSI_PROT_READ_PASS: | |
1762 | case SCSI_PROT_WRITE_PASS: | |
6c8eea54 | 1763 | *rxop = BG_OP_IN_CRC_OUT_CRC; |
4ac9b226 | 1764 | *txop = BG_OP_IN_CRC_OUT_CRC; |
e2a0a9d6 JS |
1765 | break; |
1766 | ||
e2a0a9d6 JS |
1767 | case SCSI_PROT_READ_INSERT: |
1768 | case SCSI_PROT_WRITE_STRIP: | |
7c56b9fd | 1769 | *rxop = BG_OP_IN_NODIF_OUT_CRC; |
4ac9b226 | 1770 | *txop = BG_OP_IN_CRC_OUT_NODIF; |
7c56b9fd JS |
1771 | break; |
1772 | ||
e2a0a9d6 JS |
1773 | case SCSI_PROT_NORMAL: |
1774 | default: | |
6a9c52cf | 1775 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
7c56b9fd JS |
1776 | "9075 BLKGRD: Bad op/guard:%d/CRC combination\n", |
1777 | scsi_get_prot_op(sc)); | |
6c8eea54 | 1778 | ret = 1; |
e2a0a9d6 JS |
1779 | break; |
1780 | } | |
e2a0a9d6 JS |
1781 | } |
1782 | ||
6c8eea54 | 1783 | return ret; |
e2a0a9d6 JS |
1784 | } |
1785 | ||
acd6859b JS |
1786 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
1787 | /** | |
1788 | * lpfc_bg_err_opcodes - reDetermine the BlockGuard opcodes to be used with | |
1789 | * the specified SCSI command in order to force a guard tag error. | |
1790 | * @phba: The Hba for which this call is being executed. | |
1791 | * @sc: The SCSI command to examine | |
1792 | * @txopt: (out) BlockGuard operation for transmitted data | |
1793 | * @rxopt: (out) BlockGuard operation for received data | |
1794 | * | |
1795 | * Returns: zero on success; non-zero if tx and/or rx op cannot be determined | |
1796 | * | |
1797 | **/ | |
1798 | static int | |
1799 | lpfc_bg_err_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
1800 | uint8_t *txop, uint8_t *rxop) | |
1801 | { | |
acd6859b JS |
1802 | uint8_t ret = 0; |
1803 | ||
9c6aa9d7 | 1804 | if (lpfc_cmd_guard_csum(sc)) { |
acd6859b JS |
1805 | switch (scsi_get_prot_op(sc)) { |
1806 | case SCSI_PROT_READ_INSERT: | |
1807 | case SCSI_PROT_WRITE_STRIP: | |
acd6859b | 1808 | *rxop = BG_OP_IN_NODIF_OUT_CRC; |
4ac9b226 | 1809 | *txop = BG_OP_IN_CRC_OUT_NODIF; |
acd6859b JS |
1810 | break; |
1811 | ||
1812 | case SCSI_PROT_READ_STRIP: | |
1813 | case SCSI_PROT_WRITE_INSERT: | |
acd6859b | 1814 | *rxop = BG_OP_IN_CSUM_OUT_NODIF; |
4ac9b226 | 1815 | *txop = BG_OP_IN_NODIF_OUT_CSUM; |
acd6859b JS |
1816 | break; |
1817 | ||
1818 | case SCSI_PROT_READ_PASS: | |
1819 | case SCSI_PROT_WRITE_PASS: | |
4ac9b226 | 1820 | *rxop = BG_OP_IN_CSUM_OUT_CRC; |
9a6b09c0 | 1821 | *txop = BG_OP_IN_CRC_OUT_CSUM; |
acd6859b JS |
1822 | break; |
1823 | ||
1824 | case SCSI_PROT_NORMAL: | |
1825 | default: | |
1826 | break; | |
1827 | ||
1828 | } | |
1829 | } else { | |
1830 | switch (scsi_get_prot_op(sc)) { | |
1831 | case SCSI_PROT_READ_STRIP: | |
1832 | case SCSI_PROT_WRITE_INSERT: | |
acd6859b | 1833 | *rxop = BG_OP_IN_CSUM_OUT_NODIF; |
4ac9b226 | 1834 | *txop = BG_OP_IN_NODIF_OUT_CSUM; |
acd6859b JS |
1835 | break; |
1836 | ||
1837 | case SCSI_PROT_READ_PASS: | |
1838 | case SCSI_PROT_WRITE_PASS: | |
4ac9b226 | 1839 | *rxop = BG_OP_IN_CSUM_OUT_CSUM; |
9a6b09c0 | 1840 | *txop = BG_OP_IN_CSUM_OUT_CSUM; |
acd6859b JS |
1841 | break; |
1842 | ||
1843 | case SCSI_PROT_READ_INSERT: | |
1844 | case SCSI_PROT_WRITE_STRIP: | |
acd6859b | 1845 | *rxop = BG_OP_IN_NODIF_OUT_CSUM; |
4ac9b226 | 1846 | *txop = BG_OP_IN_CSUM_OUT_NODIF; |
acd6859b JS |
1847 | break; |
1848 | ||
1849 | case SCSI_PROT_NORMAL: | |
1850 | default: | |
1851 | break; | |
1852 | } | |
1853 | } | |
1854 | ||
1855 | return ret; | |
1856 | } | |
1857 | #endif | |
1858 | ||
1859 | /** | |
1860 | * lpfc_bg_setup_bpl - Setup BlockGuard BPL with no protection data | |
1861 | * @phba: The Hba for which this call is being executed. | |
1862 | * @sc: pointer to scsi command we're working on | |
1863 | * @bpl: pointer to buffer list for protection groups | |
1864 | * @datacnt: number of segments of data that have been dma mapped | |
1865 | * | |
1866 | * This function sets up BPL buffer list for protection groups of | |
e2a0a9d6 JS |
1867 | * type LPFC_PG_TYPE_NO_DIF |
1868 | * | |
1869 | * This is usually used when the HBA is instructed to generate | |
1870 | * DIFs and insert them into data stream (or strip DIF from | |
1871 | * incoming data stream) | |
1872 | * | |
1873 | * The buffer list consists of just one protection group described | |
1874 | * below: | |
1875 | * +-------------------------+ | |
6c8eea54 JS |
1876 | * start of prot group --> | PDE_5 | |
1877 | * +-------------------------+ | |
1878 | * | PDE_6 | | |
e2a0a9d6 JS |
1879 | * +-------------------------+ |
1880 | * | Data BDE | | |
1881 | * +-------------------------+ | |
1882 | * |more Data BDE's ... (opt)| | |
1883 | * +-------------------------+ | |
1884 | * | |
e2a0a9d6 JS |
1885 | * |
1886 | * Note: Data s/g buffers have been dma mapped | |
acd6859b JS |
1887 | * |
1888 | * Returns the number of BDEs added to the BPL. | |
1889 | **/ | |
e2a0a9d6 JS |
1890 | static int |
1891 | lpfc_bg_setup_bpl(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
1892 | struct ulp_bde64 *bpl, int datasegcnt) | |
1893 | { | |
1894 | struct scatterlist *sgde = NULL; /* s/g data entry */ | |
6c8eea54 JS |
1895 | struct lpfc_pde5 *pde5 = NULL; |
1896 | struct lpfc_pde6 *pde6 = NULL; | |
e2a0a9d6 | 1897 | dma_addr_t physaddr; |
6c8eea54 | 1898 | int i = 0, num_bde = 0, status; |
e2a0a9d6 | 1899 | int datadir = sc->sc_data_direction; |
0829a19a | 1900 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 1901 | uint32_t rc; |
0829a19a | 1902 | #endif |
acd6859b | 1903 | uint32_t checking = 1; |
e2a0a9d6 | 1904 | uint32_t reftag; |
7c56b9fd | 1905 | unsigned blksize; |
6c8eea54 | 1906 | uint8_t txop, rxop; |
e2a0a9d6 | 1907 | |
6c8eea54 JS |
1908 | status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop); |
1909 | if (status) | |
e2a0a9d6 JS |
1910 | goto out; |
1911 | ||
6c8eea54 | 1912 | /* extract some info from the scsi command for pde*/ |
e2a0a9d6 | 1913 | blksize = lpfc_cmd_blksize(sc); |
acd6859b | 1914 | reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */ |
e2a0a9d6 | 1915 | |
f9bb2da1 | 1916 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
4ac9b226 | 1917 | rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); |
acd6859b | 1918 | if (rc) { |
9a6b09c0 | 1919 | if (rc & BG_ERR_SWAP) |
acd6859b | 1920 | lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); |
9a6b09c0 | 1921 | if (rc & BG_ERR_CHECK) |
acd6859b JS |
1922 | checking = 0; |
1923 | } | |
f9bb2da1 JS |
1924 | #endif |
1925 | ||
6c8eea54 JS |
1926 | /* setup PDE5 with what we have */ |
1927 | pde5 = (struct lpfc_pde5 *) bpl; | |
1928 | memset(pde5, 0, sizeof(struct lpfc_pde5)); | |
1929 | bf_set(pde5_type, pde5, LPFC_PDE5_DESCRIPTOR); | |
6c8eea54 | 1930 | |
bc73905a | 1931 | /* Endianness conversion if necessary for PDE5 */ |
589a52d6 | 1932 | pde5->word0 = cpu_to_le32(pde5->word0); |
7c56b9fd | 1933 | pde5->reftag = cpu_to_le32(reftag); |
589a52d6 | 1934 | |
6c8eea54 JS |
1935 | /* advance bpl and increment bde count */ |
1936 | num_bde++; | |
1937 | bpl++; | |
1938 | pde6 = (struct lpfc_pde6 *) bpl; | |
1939 | ||
1940 | /* setup PDE6 with the rest of the info */ | |
1941 | memset(pde6, 0, sizeof(struct lpfc_pde6)); | |
1942 | bf_set(pde6_type, pde6, LPFC_PDE6_DESCRIPTOR); | |
1943 | bf_set(pde6_optx, pde6, txop); | |
1944 | bf_set(pde6_oprx, pde6, rxop); | |
a6887e28 JS |
1945 | |
1946 | /* | |
1947 | * We only need to check the data on READs, for WRITEs | |
1948 | * protection data is automatically generated, not checked. | |
1949 | */ | |
6c8eea54 | 1950 | if (datadir == DMA_FROM_DEVICE) { |
9c6aa9d7 | 1951 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_GUARD)) |
a6887e28 JS |
1952 | bf_set(pde6_ce, pde6, checking); |
1953 | else | |
1954 | bf_set(pde6_ce, pde6, 0); | |
1955 | ||
9c6aa9d7 | 1956 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_REF)) |
a6887e28 JS |
1957 | bf_set(pde6_re, pde6, checking); |
1958 | else | |
1959 | bf_set(pde6_re, pde6, 0); | |
6c8eea54 JS |
1960 | } |
1961 | bf_set(pde6_ai, pde6, 1); | |
7c56b9fd JS |
1962 | bf_set(pde6_ae, pde6, 0); |
1963 | bf_set(pde6_apptagval, pde6, 0); | |
e2a0a9d6 | 1964 | |
bc73905a | 1965 | /* Endianness conversion if necessary for PDE6 */ |
589a52d6 JS |
1966 | pde6->word0 = cpu_to_le32(pde6->word0); |
1967 | pde6->word1 = cpu_to_le32(pde6->word1); | |
1968 | pde6->word2 = cpu_to_le32(pde6->word2); | |
1969 | ||
6c8eea54 | 1970 | /* advance bpl and increment bde count */ |
e2a0a9d6 JS |
1971 | num_bde++; |
1972 | bpl++; | |
1973 | ||
1974 | /* assumption: caller has already run dma_map_sg on command data */ | |
1975 | scsi_for_each_sg(sc, sgde, datasegcnt, i) { | |
1976 | physaddr = sg_dma_address(sgde); | |
1977 | bpl->addrLow = le32_to_cpu(putPaddrLow(physaddr)); | |
1978 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(physaddr)); | |
1979 | bpl->tus.f.bdeSize = sg_dma_len(sgde); | |
1980 | if (datadir == DMA_TO_DEVICE) | |
1981 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
1982 | else | |
1983 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
1984 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
1985 | bpl++; | |
1986 | num_bde++; | |
1987 | } | |
1988 | ||
1989 | out: | |
1990 | return num_bde; | |
1991 | } | |
1992 | ||
acd6859b JS |
1993 | /** |
1994 | * lpfc_bg_setup_bpl_prot - Setup BlockGuard BPL with protection data | |
1995 | * @phba: The Hba for which this call is being executed. | |
1996 | * @sc: pointer to scsi command we're working on | |
1997 | * @bpl: pointer to buffer list for protection groups | |
1998 | * @datacnt: number of segments of data that have been dma mapped | |
1999 | * @protcnt: number of segment of protection data that have been dma mapped | |
2000 | * | |
2001 | * This function sets up BPL buffer list for protection groups of | |
2002 | * type LPFC_PG_TYPE_DIF | |
e2a0a9d6 JS |
2003 | * |
2004 | * This is usually used when DIFs are in their own buffers, | |
2005 | * separate from the data. The HBA can then by instructed | |
2006 | * to place the DIFs in the outgoing stream. For read operations, | |
2007 | * The HBA could extract the DIFs and place it in DIF buffers. | |
2008 | * | |
2009 | * The buffer list for this type consists of one or more of the | |
2010 | * protection groups described below: | |
2011 | * +-------------------------+ | |
6c8eea54 | 2012 | * start of first prot group --> | PDE_5 | |
e2a0a9d6 | 2013 | * +-------------------------+ |
6c8eea54 JS |
2014 | * | PDE_6 | |
2015 | * +-------------------------+ | |
2016 | * | PDE_7 (Prot BDE) | | |
e2a0a9d6 JS |
2017 | * +-------------------------+ |
2018 | * | Data BDE | | |
2019 | * +-------------------------+ | |
2020 | * |more Data BDE's ... (opt)| | |
2021 | * +-------------------------+ | |
6c8eea54 | 2022 | * start of new prot group --> | PDE_5 | |
e2a0a9d6 JS |
2023 | * +-------------------------+ |
2024 | * | ... | | |
2025 | * +-------------------------+ | |
2026 | * | |
e2a0a9d6 JS |
2027 | * Note: It is assumed that both data and protection s/g buffers have been |
2028 | * mapped for DMA | |
acd6859b JS |
2029 | * |
2030 | * Returns the number of BDEs added to the BPL. | |
2031 | **/ | |
e2a0a9d6 JS |
2032 | static int |
2033 | lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
2034 | struct ulp_bde64 *bpl, int datacnt, int protcnt) | |
2035 | { | |
2036 | struct scatterlist *sgde = NULL; /* s/g data entry */ | |
2037 | struct scatterlist *sgpe = NULL; /* s/g prot entry */ | |
6c8eea54 JS |
2038 | struct lpfc_pde5 *pde5 = NULL; |
2039 | struct lpfc_pde6 *pde6 = NULL; | |
7f86059a | 2040 | struct lpfc_pde7 *pde7 = NULL; |
e2a0a9d6 JS |
2041 | dma_addr_t dataphysaddr, protphysaddr; |
2042 | unsigned short curr_data = 0, curr_prot = 0; | |
7f86059a JS |
2043 | unsigned int split_offset; |
2044 | unsigned int protgroup_len, protgroup_offset = 0, protgroup_remainder; | |
e2a0a9d6 JS |
2045 | unsigned int protgrp_blks, protgrp_bytes; |
2046 | unsigned int remainder, subtotal; | |
6c8eea54 | 2047 | int status; |
e2a0a9d6 JS |
2048 | int datadir = sc->sc_data_direction; |
2049 | unsigned char pgdone = 0, alldone = 0; | |
2050 | unsigned blksize; | |
0829a19a | 2051 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 2052 | uint32_t rc; |
0829a19a | 2053 | #endif |
acd6859b | 2054 | uint32_t checking = 1; |
e2a0a9d6 | 2055 | uint32_t reftag; |
6c8eea54 | 2056 | uint8_t txop, rxop; |
e2a0a9d6 JS |
2057 | int num_bde = 0; |
2058 | ||
2059 | sgpe = scsi_prot_sglist(sc); | |
2060 | sgde = scsi_sglist(sc); | |
2061 | ||
2062 | if (!sgpe || !sgde) { | |
2063 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, | |
acd6859b JS |
2064 | "9020 Invalid s/g entry: data=0x%p prot=0x%p\n", |
2065 | sgpe, sgde); | |
2066 | return 0; | |
2067 | } | |
2068 | ||
2069 | status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop); | |
2070 | if (status) | |
2071 | goto out; | |
2072 | ||
2073 | /* extract some info from the scsi command */ | |
2074 | blksize = lpfc_cmd_blksize(sc); | |
2075 | reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */ | |
2076 | ||
2077 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS | |
4ac9b226 | 2078 | rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); |
acd6859b | 2079 | if (rc) { |
9a6b09c0 | 2080 | if (rc & BG_ERR_SWAP) |
acd6859b | 2081 | lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); |
9a6b09c0 | 2082 | if (rc & BG_ERR_CHECK) |
acd6859b JS |
2083 | checking = 0; |
2084 | } | |
2085 | #endif | |
2086 | ||
2087 | split_offset = 0; | |
2088 | do { | |
96f7077f JS |
2089 | /* Check to see if we ran out of space */ |
2090 | if (num_bde >= (phba->cfg_total_seg_cnt - 2)) | |
2091 | return num_bde + 3; | |
2092 | ||
acd6859b JS |
2093 | /* setup PDE5 with what we have */ |
2094 | pde5 = (struct lpfc_pde5 *) bpl; | |
2095 | memset(pde5, 0, sizeof(struct lpfc_pde5)); | |
2096 | bf_set(pde5_type, pde5, LPFC_PDE5_DESCRIPTOR); | |
2097 | ||
2098 | /* Endianness conversion if necessary for PDE5 */ | |
2099 | pde5->word0 = cpu_to_le32(pde5->word0); | |
2100 | pde5->reftag = cpu_to_le32(reftag); | |
2101 | ||
2102 | /* advance bpl and increment bde count */ | |
2103 | num_bde++; | |
2104 | bpl++; | |
2105 | pde6 = (struct lpfc_pde6 *) bpl; | |
2106 | ||
2107 | /* setup PDE6 with the rest of the info */ | |
2108 | memset(pde6, 0, sizeof(struct lpfc_pde6)); | |
2109 | bf_set(pde6_type, pde6, LPFC_PDE6_DESCRIPTOR); | |
2110 | bf_set(pde6_optx, pde6, txop); | |
2111 | bf_set(pde6_oprx, pde6, rxop); | |
a6887e28 | 2112 | |
9c6aa9d7 | 2113 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_GUARD)) |
a6887e28 JS |
2114 | bf_set(pde6_ce, pde6, checking); |
2115 | else | |
2116 | bf_set(pde6_ce, pde6, 0); | |
2117 | ||
9c6aa9d7 | 2118 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_REF)) |
a6887e28 JS |
2119 | bf_set(pde6_re, pde6, checking); |
2120 | else | |
2121 | bf_set(pde6_re, pde6, 0); | |
2122 | ||
acd6859b JS |
2123 | bf_set(pde6_ai, pde6, 1); |
2124 | bf_set(pde6_ae, pde6, 0); | |
2125 | bf_set(pde6_apptagval, pde6, 0); | |
2126 | ||
2127 | /* Endianness conversion if necessary for PDE6 */ | |
2128 | pde6->word0 = cpu_to_le32(pde6->word0); | |
2129 | pde6->word1 = cpu_to_le32(pde6->word1); | |
2130 | pde6->word2 = cpu_to_le32(pde6->word2); | |
2131 | ||
2132 | /* advance bpl and increment bde count */ | |
2133 | num_bde++; | |
2134 | bpl++; | |
2135 | ||
2136 | /* setup the first BDE that points to protection buffer */ | |
2137 | protphysaddr = sg_dma_address(sgpe) + protgroup_offset; | |
2138 | protgroup_len = sg_dma_len(sgpe) - protgroup_offset; | |
2139 | ||
2140 | /* must be integer multiple of the DIF block length */ | |
2141 | BUG_ON(protgroup_len % 8); | |
2142 | ||
2143 | pde7 = (struct lpfc_pde7 *) bpl; | |
2144 | memset(pde7, 0, sizeof(struct lpfc_pde7)); | |
2145 | bf_set(pde7_type, pde7, LPFC_PDE7_DESCRIPTOR); | |
2146 | ||
2147 | pde7->addrHigh = le32_to_cpu(putPaddrHigh(protphysaddr)); | |
2148 | pde7->addrLow = le32_to_cpu(putPaddrLow(protphysaddr)); | |
2149 | ||
2150 | protgrp_blks = protgroup_len / 8; | |
2151 | protgrp_bytes = protgrp_blks * blksize; | |
2152 | ||
2153 | /* check if this pde is crossing the 4K boundary; if so split */ | |
2154 | if ((pde7->addrLow & 0xfff) + protgroup_len > 0x1000) { | |
2155 | protgroup_remainder = 0x1000 - (pde7->addrLow & 0xfff); | |
2156 | protgroup_offset += protgroup_remainder; | |
2157 | protgrp_blks = protgroup_remainder / 8; | |
2158 | protgrp_bytes = protgrp_blks * blksize; | |
2159 | } else { | |
2160 | protgroup_offset = 0; | |
2161 | curr_prot++; | |
2162 | } | |
2163 | ||
2164 | num_bde++; | |
2165 | ||
2166 | /* setup BDE's for data blocks associated with DIF data */ | |
2167 | pgdone = 0; | |
2168 | subtotal = 0; /* total bytes processed for current prot grp */ | |
2169 | while (!pgdone) { | |
96f7077f JS |
2170 | /* Check to see if we ran out of space */ |
2171 | if (num_bde >= phba->cfg_total_seg_cnt) | |
2172 | return num_bde + 1; | |
2173 | ||
acd6859b JS |
2174 | if (!sgde) { |
2175 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
2176 | "9065 BLKGRD:%s Invalid data segment\n", | |
2177 | __func__); | |
2178 | return 0; | |
2179 | } | |
2180 | bpl++; | |
2181 | dataphysaddr = sg_dma_address(sgde) + split_offset; | |
2182 | bpl->addrLow = le32_to_cpu(putPaddrLow(dataphysaddr)); | |
2183 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(dataphysaddr)); | |
2184 | ||
2185 | remainder = sg_dma_len(sgde) - split_offset; | |
2186 | ||
2187 | if ((subtotal + remainder) <= protgrp_bytes) { | |
2188 | /* we can use this whole buffer */ | |
2189 | bpl->tus.f.bdeSize = remainder; | |
2190 | split_offset = 0; | |
2191 | ||
2192 | if ((subtotal + remainder) == protgrp_bytes) | |
2193 | pgdone = 1; | |
2194 | } else { | |
2195 | /* must split this buffer with next prot grp */ | |
2196 | bpl->tus.f.bdeSize = protgrp_bytes - subtotal; | |
2197 | split_offset += bpl->tus.f.bdeSize; | |
2198 | } | |
2199 | ||
2200 | subtotal += bpl->tus.f.bdeSize; | |
2201 | ||
2202 | if (datadir == DMA_TO_DEVICE) | |
2203 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
2204 | else | |
2205 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
2206 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
2207 | ||
2208 | num_bde++; | |
2209 | curr_data++; | |
2210 | ||
2211 | if (split_offset) | |
2212 | break; | |
2213 | ||
2214 | /* Move to the next s/g segment if possible */ | |
2215 | sgde = sg_next(sgde); | |
2216 | ||
2217 | } | |
2218 | ||
2219 | if (protgroup_offset) { | |
2220 | /* update the reference tag */ | |
2221 | reftag += protgrp_blks; | |
2222 | bpl++; | |
2223 | continue; | |
2224 | } | |
2225 | ||
2226 | /* are we done ? */ | |
2227 | if (curr_prot == protcnt) { | |
2228 | alldone = 1; | |
2229 | } else if (curr_prot < protcnt) { | |
2230 | /* advance to next prot buffer */ | |
2231 | sgpe = sg_next(sgpe); | |
2232 | bpl++; | |
2233 | ||
2234 | /* update the reference tag */ | |
2235 | reftag += protgrp_blks; | |
2236 | } else { | |
2237 | /* if we're here, we have a bug */ | |
2238 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
2239 | "9054 BLKGRD: bug in %s\n", __func__); | |
2240 | } | |
2241 | ||
2242 | } while (!alldone); | |
2243 | out: | |
2244 | ||
2245 | return num_bde; | |
2246 | } | |
2247 | ||
2248 | /** | |
2249 | * lpfc_bg_setup_sgl - Setup BlockGuard SGL with no protection data | |
2250 | * @phba: The Hba for which this call is being executed. | |
2251 | * @sc: pointer to scsi command we're working on | |
2252 | * @sgl: pointer to buffer list for protection groups | |
2253 | * @datacnt: number of segments of data that have been dma mapped | |
2254 | * | |
2255 | * This function sets up SGL buffer list for protection groups of | |
2256 | * type LPFC_PG_TYPE_NO_DIF | |
2257 | * | |
2258 | * This is usually used when the HBA is instructed to generate | |
2259 | * DIFs and insert them into data stream (or strip DIF from | |
2260 | * incoming data stream) | |
2261 | * | |
2262 | * The buffer list consists of just one protection group described | |
2263 | * below: | |
2264 | * +-------------------------+ | |
2265 | * start of prot group --> | DI_SEED | | |
2266 | * +-------------------------+ | |
2267 | * | Data SGE | | |
2268 | * +-------------------------+ | |
2269 | * |more Data SGE's ... (opt)| | |
2270 | * +-------------------------+ | |
2271 | * | |
2272 | * | |
2273 | * Note: Data s/g buffers have been dma mapped | |
2274 | * | |
2275 | * Returns the number of SGEs added to the SGL. | |
2276 | **/ | |
2277 | static int | |
2278 | lpfc_bg_setup_sgl(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
2279 | struct sli4_sge *sgl, int datasegcnt) | |
2280 | { | |
2281 | struct scatterlist *sgde = NULL; /* s/g data entry */ | |
2282 | struct sli4_sge_diseed *diseed = NULL; | |
2283 | dma_addr_t physaddr; | |
2284 | int i = 0, num_sge = 0, status; | |
acd6859b JS |
2285 | uint32_t reftag; |
2286 | unsigned blksize; | |
2287 | uint8_t txop, rxop; | |
0829a19a | 2288 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 2289 | uint32_t rc; |
0829a19a | 2290 | #endif |
acd6859b JS |
2291 | uint32_t checking = 1; |
2292 | uint32_t dma_len; | |
2293 | uint32_t dma_offset = 0; | |
2294 | ||
2295 | status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop); | |
2296 | if (status) | |
2297 | goto out; | |
2298 | ||
2299 | /* extract some info from the scsi command for pde*/ | |
2300 | blksize = lpfc_cmd_blksize(sc); | |
2301 | reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */ | |
2302 | ||
2303 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS | |
4ac9b226 | 2304 | rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); |
acd6859b | 2305 | if (rc) { |
9a6b09c0 | 2306 | if (rc & BG_ERR_SWAP) |
acd6859b | 2307 | lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); |
9a6b09c0 | 2308 | if (rc & BG_ERR_CHECK) |
acd6859b JS |
2309 | checking = 0; |
2310 | } | |
2311 | #endif | |
2312 | ||
2313 | /* setup DISEED with what we have */ | |
2314 | diseed = (struct sli4_sge_diseed *) sgl; | |
2315 | memset(diseed, 0, sizeof(struct sli4_sge_diseed)); | |
2316 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DISEED); | |
2317 | ||
2318 | /* Endianness conversion if necessary */ | |
2319 | diseed->ref_tag = cpu_to_le32(reftag); | |
2320 | diseed->ref_tag_tran = diseed->ref_tag; | |
2321 | ||
a6887e28 JS |
2322 | /* |
2323 | * We only need to check the data on READs, for WRITEs | |
2324 | * protection data is automatically generated, not checked. | |
2325 | */ | |
2326 | if (sc->sc_data_direction == DMA_FROM_DEVICE) { | |
9c6aa9d7 | 2327 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_GUARD)) |
a6887e28 JS |
2328 | bf_set(lpfc_sli4_sge_dif_ce, diseed, checking); |
2329 | else | |
2330 | bf_set(lpfc_sli4_sge_dif_ce, diseed, 0); | |
2331 | ||
9c6aa9d7 | 2332 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_REF)) |
a6887e28 JS |
2333 | bf_set(lpfc_sli4_sge_dif_re, diseed, checking); |
2334 | else | |
2335 | bf_set(lpfc_sli4_sge_dif_re, diseed, 0); | |
2336 | } | |
2337 | ||
acd6859b JS |
2338 | /* setup DISEED with the rest of the info */ |
2339 | bf_set(lpfc_sli4_sge_dif_optx, diseed, txop); | |
2340 | bf_set(lpfc_sli4_sge_dif_oprx, diseed, rxop); | |
a6887e28 | 2341 | |
acd6859b JS |
2342 | bf_set(lpfc_sli4_sge_dif_ai, diseed, 1); |
2343 | bf_set(lpfc_sli4_sge_dif_me, diseed, 0); | |
2344 | ||
2345 | /* Endianness conversion if necessary for DISEED */ | |
2346 | diseed->word2 = cpu_to_le32(diseed->word2); | |
2347 | diseed->word3 = cpu_to_le32(diseed->word3); | |
2348 | ||
2349 | /* advance bpl and increment sge count */ | |
2350 | num_sge++; | |
2351 | sgl++; | |
2352 | ||
2353 | /* assumption: caller has already run dma_map_sg on command data */ | |
2354 | scsi_for_each_sg(sc, sgde, datasegcnt, i) { | |
2355 | physaddr = sg_dma_address(sgde); | |
2356 | dma_len = sg_dma_len(sgde); | |
2357 | sgl->addr_lo = cpu_to_le32(putPaddrLow(physaddr)); | |
2358 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(physaddr)); | |
2359 | if ((i + 1) == datasegcnt) | |
2360 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
2361 | else | |
2362 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
2363 | bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); | |
2364 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA); | |
2365 | ||
2366 | sgl->sge_len = cpu_to_le32(dma_len); | |
2367 | dma_offset += dma_len; | |
2368 | ||
2369 | sgl++; | |
2370 | num_sge++; | |
2371 | } | |
2372 | ||
2373 | out: | |
2374 | return num_sge; | |
2375 | } | |
2376 | ||
2377 | /** | |
2378 | * lpfc_bg_setup_sgl_prot - Setup BlockGuard SGL with protection data | |
2379 | * @phba: The Hba for which this call is being executed. | |
2380 | * @sc: pointer to scsi command we're working on | |
2381 | * @sgl: pointer to buffer list for protection groups | |
2382 | * @datacnt: number of segments of data that have been dma mapped | |
2383 | * @protcnt: number of segment of protection data that have been dma mapped | |
2384 | * | |
2385 | * This function sets up SGL buffer list for protection groups of | |
2386 | * type LPFC_PG_TYPE_DIF | |
2387 | * | |
2388 | * This is usually used when DIFs are in their own buffers, | |
2389 | * separate from the data. The HBA can then by instructed | |
2390 | * to place the DIFs in the outgoing stream. For read operations, | |
2391 | * The HBA could extract the DIFs and place it in DIF buffers. | |
2392 | * | |
2393 | * The buffer list for this type consists of one or more of the | |
2394 | * protection groups described below: | |
2395 | * +-------------------------+ | |
2396 | * start of first prot group --> | DISEED | | |
2397 | * +-------------------------+ | |
2398 | * | DIF (Prot SGE) | | |
2399 | * +-------------------------+ | |
2400 | * | Data SGE | | |
2401 | * +-------------------------+ | |
2402 | * |more Data SGE's ... (opt)| | |
2403 | * +-------------------------+ | |
2404 | * start of new prot group --> | DISEED | | |
2405 | * +-------------------------+ | |
2406 | * | ... | | |
2407 | * +-------------------------+ | |
2408 | * | |
2409 | * Note: It is assumed that both data and protection s/g buffers have been | |
2410 | * mapped for DMA | |
2411 | * | |
2412 | * Returns the number of SGEs added to the SGL. | |
2413 | **/ | |
2414 | static int | |
2415 | lpfc_bg_setup_sgl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
2416 | struct sli4_sge *sgl, int datacnt, int protcnt) | |
2417 | { | |
2418 | struct scatterlist *sgde = NULL; /* s/g data entry */ | |
2419 | struct scatterlist *sgpe = NULL; /* s/g prot entry */ | |
2420 | struct sli4_sge_diseed *diseed = NULL; | |
2421 | dma_addr_t dataphysaddr, protphysaddr; | |
2422 | unsigned short curr_data = 0, curr_prot = 0; | |
2423 | unsigned int split_offset; | |
2424 | unsigned int protgroup_len, protgroup_offset = 0, protgroup_remainder; | |
2425 | unsigned int protgrp_blks, protgrp_bytes; | |
2426 | unsigned int remainder, subtotal; | |
2427 | int status; | |
2428 | unsigned char pgdone = 0, alldone = 0; | |
2429 | unsigned blksize; | |
2430 | uint32_t reftag; | |
2431 | uint8_t txop, rxop; | |
2432 | uint32_t dma_len; | |
0829a19a | 2433 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 2434 | uint32_t rc; |
0829a19a | 2435 | #endif |
acd6859b JS |
2436 | uint32_t checking = 1; |
2437 | uint32_t dma_offset = 0; | |
2438 | int num_sge = 0; | |
2439 | ||
2440 | sgpe = scsi_prot_sglist(sc); | |
2441 | sgde = scsi_sglist(sc); | |
2442 | ||
2443 | if (!sgpe || !sgde) { | |
2444 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, | |
2445 | "9082 Invalid s/g entry: data=0x%p prot=0x%p\n", | |
e2a0a9d6 JS |
2446 | sgpe, sgde); |
2447 | return 0; | |
2448 | } | |
2449 | ||
6c8eea54 JS |
2450 | status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop); |
2451 | if (status) | |
e2a0a9d6 JS |
2452 | goto out; |
2453 | ||
6c8eea54 | 2454 | /* extract some info from the scsi command */ |
e2a0a9d6 | 2455 | blksize = lpfc_cmd_blksize(sc); |
acd6859b | 2456 | reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */ |
e2a0a9d6 | 2457 | |
f9bb2da1 | 2458 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
4ac9b226 | 2459 | rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); |
acd6859b | 2460 | if (rc) { |
9a6b09c0 | 2461 | if (rc & BG_ERR_SWAP) |
acd6859b | 2462 | lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); |
9a6b09c0 | 2463 | if (rc & BG_ERR_CHECK) |
acd6859b JS |
2464 | checking = 0; |
2465 | } | |
f9bb2da1 JS |
2466 | #endif |
2467 | ||
e2a0a9d6 JS |
2468 | split_offset = 0; |
2469 | do { | |
96f7077f JS |
2470 | /* Check to see if we ran out of space */ |
2471 | if (num_sge >= (phba->cfg_total_seg_cnt - 2)) | |
2472 | return num_sge + 3; | |
2473 | ||
acd6859b JS |
2474 | /* setup DISEED with what we have */ |
2475 | diseed = (struct sli4_sge_diseed *) sgl; | |
2476 | memset(diseed, 0, sizeof(struct sli4_sge_diseed)); | |
2477 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DISEED); | |
2478 | ||
2479 | /* Endianness conversion if necessary */ | |
2480 | diseed->ref_tag = cpu_to_le32(reftag); | |
2481 | diseed->ref_tag_tran = diseed->ref_tag; | |
2482 | ||
9c6aa9d7 | 2483 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_GUARD)) { |
a6887e28 JS |
2484 | bf_set(lpfc_sli4_sge_dif_ce, diseed, checking); |
2485 | ||
2486 | } else { | |
2487 | bf_set(lpfc_sli4_sge_dif_ce, diseed, 0); | |
2488 | /* | |
2489 | * When in this mode, the hardware will replace | |
2490 | * the guard tag from the host with a | |
2491 | * newly generated good CRC for the wire. | |
2492 | * Switch to raw mode here to avoid this | |
2493 | * behavior. What the host sends gets put on the wire. | |
2494 | */ | |
2495 | if (txop == BG_OP_IN_CRC_OUT_CRC) { | |
2496 | txop = BG_OP_RAW_MODE; | |
2497 | rxop = BG_OP_RAW_MODE; | |
2498 | } | |
2499 | } | |
2500 | ||
2501 | ||
9c6aa9d7 | 2502 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_REF)) |
a6887e28 JS |
2503 | bf_set(lpfc_sli4_sge_dif_re, diseed, checking); |
2504 | else | |
2505 | bf_set(lpfc_sli4_sge_dif_re, diseed, 0); | |
2506 | ||
acd6859b JS |
2507 | /* setup DISEED with the rest of the info */ |
2508 | bf_set(lpfc_sli4_sge_dif_optx, diseed, txop); | |
2509 | bf_set(lpfc_sli4_sge_dif_oprx, diseed, rxop); | |
a6887e28 | 2510 | |
acd6859b JS |
2511 | bf_set(lpfc_sli4_sge_dif_ai, diseed, 1); |
2512 | bf_set(lpfc_sli4_sge_dif_me, diseed, 0); | |
2513 | ||
2514 | /* Endianness conversion if necessary for DISEED */ | |
2515 | diseed->word2 = cpu_to_le32(diseed->word2); | |
2516 | diseed->word3 = cpu_to_le32(diseed->word3); | |
2517 | ||
2518 | /* advance sgl and increment bde count */ | |
2519 | num_sge++; | |
2520 | sgl++; | |
e2a0a9d6 JS |
2521 | |
2522 | /* setup the first BDE that points to protection buffer */ | |
7f86059a JS |
2523 | protphysaddr = sg_dma_address(sgpe) + protgroup_offset; |
2524 | protgroup_len = sg_dma_len(sgpe) - protgroup_offset; | |
e2a0a9d6 | 2525 | |
e2a0a9d6 JS |
2526 | /* must be integer multiple of the DIF block length */ |
2527 | BUG_ON(protgroup_len % 8); | |
2528 | ||
acd6859b JS |
2529 | /* Now setup DIF SGE */ |
2530 | sgl->word2 = 0; | |
2531 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DIF); | |
2532 | sgl->addr_hi = le32_to_cpu(putPaddrHigh(protphysaddr)); | |
2533 | sgl->addr_lo = le32_to_cpu(putPaddrLow(protphysaddr)); | |
2534 | sgl->word2 = cpu_to_le32(sgl->word2); | |
7f86059a | 2535 | |
e2a0a9d6 JS |
2536 | protgrp_blks = protgroup_len / 8; |
2537 | protgrp_bytes = protgrp_blks * blksize; | |
2538 | ||
acd6859b JS |
2539 | /* check if DIF SGE is crossing the 4K boundary; if so split */ |
2540 | if ((sgl->addr_lo & 0xfff) + protgroup_len > 0x1000) { | |
2541 | protgroup_remainder = 0x1000 - (sgl->addr_lo & 0xfff); | |
7f86059a JS |
2542 | protgroup_offset += protgroup_remainder; |
2543 | protgrp_blks = protgroup_remainder / 8; | |
7c56b9fd | 2544 | protgrp_bytes = protgrp_blks * blksize; |
7f86059a JS |
2545 | } else { |
2546 | protgroup_offset = 0; | |
2547 | curr_prot++; | |
2548 | } | |
e2a0a9d6 | 2549 | |
acd6859b | 2550 | num_sge++; |
e2a0a9d6 | 2551 | |
acd6859b | 2552 | /* setup SGE's for data blocks associated with DIF data */ |
e2a0a9d6 JS |
2553 | pgdone = 0; |
2554 | subtotal = 0; /* total bytes processed for current prot grp */ | |
2555 | while (!pgdone) { | |
96f7077f JS |
2556 | /* Check to see if we ran out of space */ |
2557 | if (num_sge >= phba->cfg_total_seg_cnt) | |
2558 | return num_sge + 1; | |
2559 | ||
e2a0a9d6 | 2560 | if (!sgde) { |
6a9c52cf | 2561 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
acd6859b | 2562 | "9086 BLKGRD:%s Invalid data segment\n", |
e2a0a9d6 JS |
2563 | __func__); |
2564 | return 0; | |
2565 | } | |
acd6859b | 2566 | sgl++; |
e2a0a9d6 | 2567 | dataphysaddr = sg_dma_address(sgde) + split_offset; |
e2a0a9d6 JS |
2568 | |
2569 | remainder = sg_dma_len(sgde) - split_offset; | |
2570 | ||
2571 | if ((subtotal + remainder) <= protgrp_bytes) { | |
2572 | /* we can use this whole buffer */ | |
acd6859b | 2573 | dma_len = remainder; |
e2a0a9d6 JS |
2574 | split_offset = 0; |
2575 | ||
2576 | if ((subtotal + remainder) == protgrp_bytes) | |
2577 | pgdone = 1; | |
2578 | } else { | |
2579 | /* must split this buffer with next prot grp */ | |
acd6859b JS |
2580 | dma_len = protgrp_bytes - subtotal; |
2581 | split_offset += dma_len; | |
e2a0a9d6 JS |
2582 | } |
2583 | ||
acd6859b | 2584 | subtotal += dma_len; |
e2a0a9d6 | 2585 | |
acd6859b JS |
2586 | sgl->addr_lo = cpu_to_le32(putPaddrLow(dataphysaddr)); |
2587 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(dataphysaddr)); | |
2588 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
2589 | bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); | |
2590 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA); | |
e2a0a9d6 | 2591 | |
acd6859b JS |
2592 | sgl->sge_len = cpu_to_le32(dma_len); |
2593 | dma_offset += dma_len; | |
2594 | ||
2595 | num_sge++; | |
e2a0a9d6 JS |
2596 | curr_data++; |
2597 | ||
2598 | if (split_offset) | |
2599 | break; | |
2600 | ||
2601 | /* Move to the next s/g segment if possible */ | |
2602 | sgde = sg_next(sgde); | |
2603 | } | |
2604 | ||
7f86059a JS |
2605 | if (protgroup_offset) { |
2606 | /* update the reference tag */ | |
2607 | reftag += protgrp_blks; | |
acd6859b | 2608 | sgl++; |
7f86059a JS |
2609 | continue; |
2610 | } | |
2611 | ||
e2a0a9d6 JS |
2612 | /* are we done ? */ |
2613 | if (curr_prot == protcnt) { | |
acd6859b | 2614 | bf_set(lpfc_sli4_sge_last, sgl, 1); |
e2a0a9d6 JS |
2615 | alldone = 1; |
2616 | } else if (curr_prot < protcnt) { | |
2617 | /* advance to next prot buffer */ | |
2618 | sgpe = sg_next(sgpe); | |
acd6859b | 2619 | sgl++; |
e2a0a9d6 JS |
2620 | |
2621 | /* update the reference tag */ | |
2622 | reftag += protgrp_blks; | |
2623 | } else { | |
2624 | /* if we're here, we have a bug */ | |
6a9c52cf | 2625 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
acd6859b | 2626 | "9085 BLKGRD: bug in %s\n", __func__); |
e2a0a9d6 JS |
2627 | } |
2628 | ||
2629 | } while (!alldone); | |
acd6859b | 2630 | |
e2a0a9d6 JS |
2631 | out: |
2632 | ||
acd6859b | 2633 | return num_sge; |
e2a0a9d6 | 2634 | } |
7f86059a | 2635 | |
acd6859b JS |
2636 | /** |
2637 | * lpfc_prot_group_type - Get prtotection group type of SCSI command | |
2638 | * @phba: The Hba for which this call is being executed. | |
2639 | * @sc: pointer to scsi command we're working on | |
2640 | * | |
e2a0a9d6 JS |
2641 | * Given a SCSI command that supports DIF, determine composition of protection |
2642 | * groups involved in setting up buffer lists | |
2643 | * | |
acd6859b JS |
2644 | * Returns: Protection group type (with or without DIF) |
2645 | * | |
2646 | **/ | |
e2a0a9d6 JS |
2647 | static int |
2648 | lpfc_prot_group_type(struct lpfc_hba *phba, struct scsi_cmnd *sc) | |
2649 | { | |
2650 | int ret = LPFC_PG_TYPE_INVALID; | |
2651 | unsigned char op = scsi_get_prot_op(sc); | |
2652 | ||
2653 | switch (op) { | |
2654 | case SCSI_PROT_READ_STRIP: | |
2655 | case SCSI_PROT_WRITE_INSERT: | |
2656 | ret = LPFC_PG_TYPE_NO_DIF; | |
2657 | break; | |
2658 | case SCSI_PROT_READ_INSERT: | |
2659 | case SCSI_PROT_WRITE_STRIP: | |
2660 | case SCSI_PROT_READ_PASS: | |
2661 | case SCSI_PROT_WRITE_PASS: | |
e2a0a9d6 JS |
2662 | ret = LPFC_PG_TYPE_DIF_BUF; |
2663 | break; | |
2664 | default: | |
9c6aa9d7 JS |
2665 | if (phba) |
2666 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, | |
2667 | "9021 Unsupported protection op:%d\n", | |
2668 | op); | |
e2a0a9d6 JS |
2669 | break; |
2670 | } | |
e2a0a9d6 JS |
2671 | return ret; |
2672 | } | |
2673 | ||
a6887e28 JS |
2674 | /** |
2675 | * lpfc_bg_scsi_adjust_dl - Adjust SCSI data length for BlockGuard | |
2676 | * @phba: The Hba for which this call is being executed. | |
2677 | * @lpfc_cmd: The scsi buffer which is going to be adjusted. | |
2678 | * | |
2679 | * Adjust the data length to account for how much data | |
2680 | * is actually on the wire. | |
2681 | * | |
2682 | * returns the adjusted data length | |
2683 | **/ | |
2684 | static int | |
2685 | lpfc_bg_scsi_adjust_dl(struct lpfc_hba *phba, | |
2686 | struct lpfc_scsi_buf *lpfc_cmd) | |
2687 | { | |
2688 | struct scsi_cmnd *sc = lpfc_cmd->pCmd; | |
2689 | int fcpdl; | |
2690 | ||
2691 | fcpdl = scsi_bufflen(sc); | |
2692 | ||
2693 | /* Check if there is protection data on the wire */ | |
2694 | if (sc->sc_data_direction == DMA_FROM_DEVICE) { | |
9c6aa9d7 | 2695 | /* Read check for protection data */ |
a6887e28 JS |
2696 | if (scsi_get_prot_op(sc) == SCSI_PROT_READ_INSERT) |
2697 | return fcpdl; | |
2698 | ||
2699 | } else { | |
9c6aa9d7 | 2700 | /* Write check for protection data */ |
a6887e28 JS |
2701 | if (scsi_get_prot_op(sc) == SCSI_PROT_WRITE_STRIP) |
2702 | return fcpdl; | |
2703 | } | |
2704 | ||
2705 | /* | |
2706 | * If we are in DIF Type 1 mode every data block has a 8 byte | |
9c6aa9d7 JS |
2707 | * DIF (trailer) attached to it. Must ajust FCP data length |
2708 | * to account for the protection data. | |
a6887e28 | 2709 | */ |
9c6aa9d7 | 2710 | fcpdl += (fcpdl / lpfc_cmd_blksize(sc)) * 8; |
a6887e28 JS |
2711 | |
2712 | return fcpdl; | |
2713 | } | |
2714 | ||
acd6859b JS |
2715 | /** |
2716 | * lpfc_bg_scsi_prep_dma_buf_s3 - DMA mapping for scsi buffer to SLI3 IF spec | |
2717 | * @phba: The Hba for which this call is being executed. | |
2718 | * @lpfc_cmd: The scsi buffer which is going to be prep'ed. | |
2719 | * | |
e2a0a9d6 JS |
2720 | * This is the protection/DIF aware version of |
2721 | * lpfc_scsi_prep_dma_buf(). It may be a good idea to combine the | |
2722 | * two functions eventually, but for now, it's here | |
acd6859b | 2723 | **/ |
e2a0a9d6 | 2724 | static int |
acd6859b | 2725 | lpfc_bg_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, |
e2a0a9d6 JS |
2726 | struct lpfc_scsi_buf *lpfc_cmd) |
2727 | { | |
2728 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
2729 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
2730 | struct ulp_bde64 *bpl = lpfc_cmd->fcp_bpl; | |
2731 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; | |
2732 | uint32_t num_bde = 0; | |
2733 | int datasegcnt, protsegcnt, datadir = scsi_cmnd->sc_data_direction; | |
2734 | int prot_group_type = 0; | |
a6887e28 | 2735 | int fcpdl; |
e2a0a9d6 JS |
2736 | |
2737 | /* | |
2738 | * Start the lpfc command prep by bumping the bpl beyond fcp_cmnd | |
2739 | * fcp_rsp regions to the first data bde entry | |
2740 | */ | |
2741 | bpl += 2; | |
2742 | if (scsi_sg_count(scsi_cmnd)) { | |
2743 | /* | |
2744 | * The driver stores the segment count returned from pci_map_sg | |
2745 | * because this a count of dma-mappings used to map the use_sg | |
2746 | * pages. They are not guaranteed to be the same for those | |
2747 | * architectures that implement an IOMMU. | |
2748 | */ | |
2749 | datasegcnt = dma_map_sg(&phba->pcidev->dev, | |
2750 | scsi_sglist(scsi_cmnd), | |
2751 | scsi_sg_count(scsi_cmnd), datadir); | |
2752 | if (unlikely(!datasegcnt)) | |
2753 | return 1; | |
2754 | ||
2755 | lpfc_cmd->seg_cnt = datasegcnt; | |
96f7077f JS |
2756 | |
2757 | /* First check if data segment count from SCSI Layer is good */ | |
2758 | if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) | |
2759 | goto err; | |
e2a0a9d6 JS |
2760 | |
2761 | prot_group_type = lpfc_prot_group_type(phba, scsi_cmnd); | |
2762 | ||
2763 | switch (prot_group_type) { | |
2764 | case LPFC_PG_TYPE_NO_DIF: | |
96f7077f JS |
2765 | |
2766 | /* Here we need to add a PDE5 and PDE6 to the count */ | |
2767 | if ((lpfc_cmd->seg_cnt + 2) > phba->cfg_total_seg_cnt) | |
2768 | goto err; | |
2769 | ||
e2a0a9d6 JS |
2770 | num_bde = lpfc_bg_setup_bpl(phba, scsi_cmnd, bpl, |
2771 | datasegcnt); | |
c9404c9c | 2772 | /* we should have 2 or more entries in buffer list */ |
e2a0a9d6 JS |
2773 | if (num_bde < 2) |
2774 | goto err; | |
2775 | break; | |
96f7077f JS |
2776 | |
2777 | case LPFC_PG_TYPE_DIF_BUF: | |
e2a0a9d6 JS |
2778 | /* |
2779 | * This type indicates that protection buffers are | |
2780 | * passed to the driver, so that needs to be prepared | |
2781 | * for DMA | |
2782 | */ | |
2783 | protsegcnt = dma_map_sg(&phba->pcidev->dev, | |
2784 | scsi_prot_sglist(scsi_cmnd), | |
2785 | scsi_prot_sg_count(scsi_cmnd), datadir); | |
2786 | if (unlikely(!protsegcnt)) { | |
2787 | scsi_dma_unmap(scsi_cmnd); | |
2788 | return 1; | |
2789 | } | |
2790 | ||
2791 | lpfc_cmd->prot_seg_cnt = protsegcnt; | |
96f7077f JS |
2792 | |
2793 | /* | |
2794 | * There is a minimun of 4 BPLs used for every | |
2795 | * protection data segment. | |
2796 | */ | |
2797 | if ((lpfc_cmd->prot_seg_cnt * 4) > | |
2798 | (phba->cfg_total_seg_cnt - 2)) | |
2799 | goto err; | |
e2a0a9d6 JS |
2800 | |
2801 | num_bde = lpfc_bg_setup_bpl_prot(phba, scsi_cmnd, bpl, | |
2802 | datasegcnt, protsegcnt); | |
c9404c9c | 2803 | /* we should have 3 or more entries in buffer list */ |
96f7077f JS |
2804 | if ((num_bde < 3) || |
2805 | (num_bde > phba->cfg_total_seg_cnt)) | |
e2a0a9d6 JS |
2806 | goto err; |
2807 | break; | |
96f7077f | 2808 | |
e2a0a9d6 JS |
2809 | case LPFC_PG_TYPE_INVALID: |
2810 | default: | |
96f7077f JS |
2811 | scsi_dma_unmap(scsi_cmnd); |
2812 | lpfc_cmd->seg_cnt = 0; | |
2813 | ||
e2a0a9d6 JS |
2814 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, |
2815 | "9022 Unexpected protection group %i\n", | |
2816 | prot_group_type); | |
2817 | return 1; | |
2818 | } | |
2819 | } | |
2820 | ||
2821 | /* | |
2822 | * Finish initializing those IOCB fields that are dependent on the | |
2823 | * scsi_cmnd request_buffer. Note that the bdeSize is explicitly | |
2824 | * reinitialized since all iocb memory resources are used many times | |
2825 | * for transmit, receive, and continuation bpl's. | |
2826 | */ | |
2827 | iocb_cmd->un.fcpi64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64)); | |
2828 | iocb_cmd->un.fcpi64.bdl.bdeSize += (num_bde * sizeof(struct ulp_bde64)); | |
2829 | iocb_cmd->ulpBdeCount = 1; | |
2830 | iocb_cmd->ulpLe = 1; | |
2831 | ||
a6887e28 | 2832 | fcpdl = lpfc_bg_scsi_adjust_dl(phba, lpfc_cmd); |
e2a0a9d6 JS |
2833 | fcp_cmnd->fcpDl = be32_to_cpu(fcpdl); |
2834 | ||
2835 | /* | |
2836 | * Due to difference in data length between DIF/non-DIF paths, | |
2837 | * we need to set word 4 of IOCB here | |
2838 | */ | |
2839 | iocb_cmd->un.fcpi.fcpi_parm = fcpdl; | |
2840 | ||
dea3101e | 2841 | return 0; |
e2a0a9d6 | 2842 | err: |
96f7077f JS |
2843 | if (lpfc_cmd->seg_cnt) |
2844 | scsi_dma_unmap(scsi_cmnd); | |
2845 | if (lpfc_cmd->prot_seg_cnt) | |
2846 | dma_unmap_sg(&phba->pcidev->dev, scsi_prot_sglist(scsi_cmnd), | |
2847 | scsi_prot_sg_count(scsi_cmnd), | |
2848 | scsi_cmnd->sc_data_direction); | |
2849 | ||
e2a0a9d6 | 2850 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, |
96f7077f JS |
2851 | "9023 Cannot setup S/G List for HBA" |
2852 | "IO segs %d/%d BPL %d SCSI %d: %d %d\n", | |
2853 | lpfc_cmd->seg_cnt, lpfc_cmd->prot_seg_cnt, | |
2854 | phba->cfg_total_seg_cnt, phba->cfg_sg_seg_cnt, | |
e2a0a9d6 | 2855 | prot_group_type, num_bde); |
96f7077f JS |
2856 | |
2857 | lpfc_cmd->seg_cnt = 0; | |
2858 | lpfc_cmd->prot_seg_cnt = 0; | |
e2a0a9d6 JS |
2859 | return 1; |
2860 | } | |
2861 | ||
737d4248 JS |
2862 | /* |
2863 | * This function calcuates the T10 DIF guard tag | |
2864 | * on the specified data using a CRC algorithmn | |
2865 | * using crc_t10dif. | |
2866 | */ | |
7bfe781e | 2867 | static uint16_t |
737d4248 JS |
2868 | lpfc_bg_crc(uint8_t *data, int count) |
2869 | { | |
2870 | uint16_t crc = 0; | |
2871 | uint16_t x; | |
2872 | ||
2873 | crc = crc_t10dif(data, count); | |
2874 | x = cpu_to_be16(crc); | |
2875 | return x; | |
2876 | } | |
2877 | ||
2878 | /* | |
2879 | * This function calcuates the T10 DIF guard tag | |
2880 | * on the specified data using a CSUM algorithmn | |
2881 | * using ip_compute_csum. | |
2882 | */ | |
7bfe781e | 2883 | static uint16_t |
737d4248 JS |
2884 | lpfc_bg_csum(uint8_t *data, int count) |
2885 | { | |
2886 | uint16_t ret; | |
2887 | ||
2888 | ret = ip_compute_csum(data, count); | |
2889 | return ret; | |
2890 | } | |
2891 | ||
2892 | /* | |
2893 | * This function examines the protection data to try to determine | |
2894 | * what type of T10-DIF error occurred. | |
2895 | */ | |
7bfe781e | 2896 | static void |
737d4248 JS |
2897 | lpfc_calc_bg_err(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) |
2898 | { | |
2899 | struct scatterlist *sgpe; /* s/g prot entry */ | |
2900 | struct scatterlist *sgde; /* s/g data entry */ | |
2901 | struct scsi_cmnd *cmd = lpfc_cmd->pCmd; | |
2902 | struct scsi_dif_tuple *src = NULL; | |
2903 | uint8_t *data_src = NULL; | |
2904 | uint16_t guard_tag, guard_type; | |
2905 | uint16_t start_app_tag, app_tag; | |
2906 | uint32_t start_ref_tag, ref_tag; | |
2907 | int prot, protsegcnt; | |
2908 | int err_type, len, data_len; | |
2909 | int chk_ref, chk_app, chk_guard; | |
2910 | uint16_t sum; | |
2911 | unsigned blksize; | |
2912 | ||
2913 | err_type = BGS_GUARD_ERR_MASK; | |
2914 | sum = 0; | |
2915 | guard_tag = 0; | |
2916 | ||
2917 | /* First check to see if there is protection data to examine */ | |
2918 | prot = scsi_get_prot_op(cmd); | |
2919 | if ((prot == SCSI_PROT_READ_STRIP) || | |
2920 | (prot == SCSI_PROT_WRITE_INSERT) || | |
2921 | (prot == SCSI_PROT_NORMAL)) | |
2922 | goto out; | |
2923 | ||
2924 | /* Currently the driver just supports ref_tag and guard_tag checking */ | |
2925 | chk_ref = 1; | |
2926 | chk_app = 0; | |
2927 | chk_guard = 0; | |
2928 | ||
2929 | /* Setup a ptr to the protection data provided by the SCSI host */ | |
2930 | sgpe = scsi_prot_sglist(cmd); | |
2931 | protsegcnt = lpfc_cmd->prot_seg_cnt; | |
2932 | ||
2933 | if (sgpe && protsegcnt) { | |
2934 | ||
2935 | /* | |
2936 | * We will only try to verify guard tag if the segment | |
2937 | * data length is a multiple of the blksize. | |
2938 | */ | |
2939 | sgde = scsi_sglist(cmd); | |
2940 | blksize = lpfc_cmd_blksize(cmd); | |
2941 | data_src = (uint8_t *)sg_virt(sgde); | |
2942 | data_len = sgde->length; | |
2943 | if ((data_len & (blksize - 1)) == 0) | |
2944 | chk_guard = 1; | |
2945 | guard_type = scsi_host_get_guard(cmd->device->host); | |
2946 | ||
e85d8f9f | 2947 | src = (struct scsi_dif_tuple *)sg_virt(sgpe); |
a6887e28 | 2948 | start_ref_tag = (uint32_t)scsi_get_lba(cmd); /* Truncate LBA */ |
737d4248 | 2949 | start_app_tag = src->app_tag; |
737d4248 JS |
2950 | len = sgpe->length; |
2951 | while (src && protsegcnt) { | |
2952 | while (len) { | |
2953 | ||
2954 | /* | |
2955 | * First check to see if a protection data | |
2956 | * check is valid | |
2957 | */ | |
2958 | if ((src->ref_tag == 0xffffffff) || | |
2959 | (src->app_tag == 0xffff)) { | |
2960 | start_ref_tag++; | |
2961 | goto skipit; | |
2962 | } | |
2963 | ||
9c6aa9d7 | 2964 | /* First Guard Tag checking */ |
737d4248 JS |
2965 | if (chk_guard) { |
2966 | guard_tag = src->guard_tag; | |
9c6aa9d7 | 2967 | if (lpfc_cmd_guard_csum(cmd)) |
737d4248 JS |
2968 | sum = lpfc_bg_csum(data_src, |
2969 | blksize); | |
2970 | else | |
2971 | sum = lpfc_bg_crc(data_src, | |
2972 | blksize); | |
2973 | if ((guard_tag != sum)) { | |
2974 | err_type = BGS_GUARD_ERR_MASK; | |
2975 | goto out; | |
2976 | } | |
2977 | } | |
9c6aa9d7 JS |
2978 | |
2979 | /* Reference Tag checking */ | |
2980 | ref_tag = be32_to_cpu(src->ref_tag); | |
2981 | if (chk_ref && (ref_tag != start_ref_tag)) { | |
2982 | err_type = BGS_REFTAG_ERR_MASK; | |
2983 | goto out; | |
2984 | } | |
2985 | start_ref_tag++; | |
2986 | ||
2987 | /* App Tag checking */ | |
2988 | app_tag = src->app_tag; | |
2989 | if (chk_app && (app_tag != start_app_tag)) { | |
2990 | err_type = BGS_APPTAG_ERR_MASK; | |
2991 | goto out; | |
2992 | } | |
737d4248 JS |
2993 | skipit: |
2994 | len -= sizeof(struct scsi_dif_tuple); | |
2995 | if (len < 0) | |
2996 | len = 0; | |
2997 | src++; | |
2998 | ||
2999 | data_src += blksize; | |
3000 | data_len -= blksize; | |
3001 | ||
3002 | /* | |
3003 | * Are we at the end of the Data segment? | |
3004 | * The data segment is only used for Guard | |
3005 | * tag checking. | |
3006 | */ | |
3007 | if (chk_guard && (data_len == 0)) { | |
3008 | chk_guard = 0; | |
3009 | sgde = sg_next(sgde); | |
3010 | if (!sgde) | |
3011 | goto out; | |
3012 | ||
3013 | data_src = (uint8_t *)sg_virt(sgde); | |
3014 | data_len = sgde->length; | |
3015 | if ((data_len & (blksize - 1)) == 0) | |
3016 | chk_guard = 1; | |
3017 | } | |
3018 | } | |
3019 | ||
3020 | /* Goto the next Protection data segment */ | |
3021 | sgpe = sg_next(sgpe); | |
3022 | if (sgpe) { | |
3023 | src = (struct scsi_dif_tuple *)sg_virt(sgpe); | |
3024 | len = sgpe->length; | |
3025 | } else { | |
3026 | src = NULL; | |
3027 | } | |
3028 | protsegcnt--; | |
3029 | } | |
3030 | } | |
3031 | out: | |
3032 | if (err_type == BGS_GUARD_ERR_MASK) { | |
3033 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
3034 | 0x10, 0x1); | |
3035 | cmd->result = DRIVER_SENSE << 24 | |
3036 | | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); | |
3037 | phba->bg_guard_err_cnt++; | |
3038 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, | |
3039 | "9069 BLKGRD: LBA %lx grd_tag error %x != %x\n", | |
3040 | (unsigned long)scsi_get_lba(cmd), | |
3041 | sum, guard_tag); | |
3042 | ||
3043 | } else if (err_type == BGS_REFTAG_ERR_MASK) { | |
3044 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
3045 | 0x10, 0x3); | |
3046 | cmd->result = DRIVER_SENSE << 24 | |
3047 | | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); | |
3048 | ||
3049 | phba->bg_reftag_err_cnt++; | |
3050 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, | |
3051 | "9066 BLKGRD: LBA %lx ref_tag error %x != %x\n", | |
3052 | (unsigned long)scsi_get_lba(cmd), | |
3053 | ref_tag, start_ref_tag); | |
3054 | ||
3055 | } else if (err_type == BGS_APPTAG_ERR_MASK) { | |
3056 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
3057 | 0x10, 0x2); | |
3058 | cmd->result = DRIVER_SENSE << 24 | |
3059 | | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); | |
3060 | ||
3061 | phba->bg_apptag_err_cnt++; | |
3062 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, | |
3063 | "9041 BLKGRD: LBA %lx app_tag error %x != %x\n", | |
3064 | (unsigned long)scsi_get_lba(cmd), | |
3065 | app_tag, start_app_tag); | |
3066 | } | |
3067 | } | |
3068 | ||
3069 | ||
e2a0a9d6 JS |
3070 | /* |
3071 | * This function checks for BlockGuard errors detected by | |
3072 | * the HBA. In case of errors, the ASC/ASCQ fields in the | |
3073 | * sense buffer will be set accordingly, paired with | |
3074 | * ILLEGAL_REQUEST to signal to the kernel that the HBA | |
3075 | * detected corruption. | |
3076 | * | |
3077 | * Returns: | |
3078 | * 0 - No error found | |
3079 | * 1 - BlockGuard error found | |
3080 | * -1 - Internal error (bad profile, ...etc) | |
3081 | */ | |
3082 | static int | |
3083 | lpfc_parse_bg_err(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd, | |
3084 | struct lpfc_iocbq *pIocbOut) | |
3085 | { | |
3086 | struct scsi_cmnd *cmd = lpfc_cmd->pCmd; | |
3087 | struct sli3_bg_fields *bgf = &pIocbOut->iocb.unsli3.sli3_bg; | |
3088 | int ret = 0; | |
3089 | uint32_t bghm = bgf->bghm; | |
3090 | uint32_t bgstat = bgf->bgstat; | |
3091 | uint64_t failing_sector = 0; | |
3092 | ||
e2a0a9d6 JS |
3093 | spin_lock(&_dump_buf_lock); |
3094 | if (!_dump_buf_done) { | |
6a9c52cf JS |
3095 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, "9070 BLKGRD: Saving" |
3096 | " Data for %u blocks to debugfs\n", | |
e2a0a9d6 | 3097 | (cmd->cmnd[7] << 8 | cmd->cmnd[8])); |
6a9c52cf | 3098 | lpfc_debug_save_data(phba, cmd); |
e2a0a9d6 JS |
3099 | |
3100 | /* If we have a prot sgl, save the DIF buffer */ | |
3101 | if (lpfc_prot_group_type(phba, cmd) == | |
3102 | LPFC_PG_TYPE_DIF_BUF) { | |
6a9c52cf JS |
3103 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, "9071 BLKGRD: " |
3104 | "Saving DIF for %u blocks to debugfs\n", | |
3105 | (cmd->cmnd[7] << 8 | cmd->cmnd[8])); | |
3106 | lpfc_debug_save_dif(phba, cmd); | |
e2a0a9d6 JS |
3107 | } |
3108 | ||
3109 | _dump_buf_done = 1; | |
3110 | } | |
3111 | spin_unlock(&_dump_buf_lock); | |
3112 | ||
3113 | if (lpfc_bgs_get_invalid_prof(bgstat)) { | |
3114 | cmd->result = ScsiResult(DID_ERROR, 0); | |
737d4248 JS |
3115 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
3116 | "9072 BLKGRD: Invalid BG Profile in cmd" | |
3117 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
3118 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
3119 | (unsigned long long)scsi_get_lba(cmd), | |
3120 | blk_rq_sectors(cmd->request), bgstat, bghm); | |
e2a0a9d6 JS |
3121 | ret = (-1); |
3122 | goto out; | |
3123 | } | |
3124 | ||
3125 | if (lpfc_bgs_get_uninit_dif_block(bgstat)) { | |
3126 | cmd->result = ScsiResult(DID_ERROR, 0); | |
737d4248 JS |
3127 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
3128 | "9073 BLKGRD: Invalid BG PDIF Block in cmd" | |
3129 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
3130 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
3131 | (unsigned long long)scsi_get_lba(cmd), | |
3132 | blk_rq_sectors(cmd->request), bgstat, bghm); | |
e2a0a9d6 JS |
3133 | ret = (-1); |
3134 | goto out; | |
3135 | } | |
3136 | ||
3137 | if (lpfc_bgs_get_guard_err(bgstat)) { | |
3138 | ret = 1; | |
3139 | ||
3140 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
3141 | 0x10, 0x1); | |
1c9fbafc | 3142 | cmd->result = DRIVER_SENSE << 24 |
e2a0a9d6 JS |
3143 | | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); |
3144 | phba->bg_guard_err_cnt++; | |
737d4248 JS |
3145 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
3146 | "9055 BLKGRD: Guard Tag error in cmd" | |
3147 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
3148 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
3149 | (unsigned long long)scsi_get_lba(cmd), | |
3150 | blk_rq_sectors(cmd->request), bgstat, bghm); | |
e2a0a9d6 JS |
3151 | } |
3152 | ||
3153 | if (lpfc_bgs_get_reftag_err(bgstat)) { | |
3154 | ret = 1; | |
3155 | ||
3156 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
3157 | 0x10, 0x3); | |
1c9fbafc | 3158 | cmd->result = DRIVER_SENSE << 24 |
e2a0a9d6 JS |
3159 | | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); |
3160 | ||
3161 | phba->bg_reftag_err_cnt++; | |
737d4248 JS |
3162 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
3163 | "9056 BLKGRD: Ref Tag error in cmd" | |
3164 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
3165 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
3166 | (unsigned long long)scsi_get_lba(cmd), | |
3167 | blk_rq_sectors(cmd->request), bgstat, bghm); | |
e2a0a9d6 JS |
3168 | } |
3169 | ||
3170 | if (lpfc_bgs_get_apptag_err(bgstat)) { | |
3171 | ret = 1; | |
3172 | ||
3173 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
3174 | 0x10, 0x2); | |
1c9fbafc | 3175 | cmd->result = DRIVER_SENSE << 24 |
e2a0a9d6 JS |
3176 | | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); |
3177 | ||
3178 | phba->bg_apptag_err_cnt++; | |
737d4248 JS |
3179 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
3180 | "9061 BLKGRD: App Tag error in cmd" | |
3181 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
3182 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
3183 | (unsigned long long)scsi_get_lba(cmd), | |
3184 | blk_rq_sectors(cmd->request), bgstat, bghm); | |
e2a0a9d6 JS |
3185 | } |
3186 | ||
3187 | if (lpfc_bgs_get_hi_water_mark_present(bgstat)) { | |
3188 | /* | |
3189 | * setup sense data descriptor 0 per SPC-4 as an information | |
7c56b9fd JS |
3190 | * field, and put the failing LBA in it. |
3191 | * This code assumes there was also a guard/app/ref tag error | |
3192 | * indication. | |
e2a0a9d6 | 3193 | */ |
7c56b9fd JS |
3194 | cmd->sense_buffer[7] = 0xc; /* Additional sense length */ |
3195 | cmd->sense_buffer[8] = 0; /* Information descriptor type */ | |
3196 | cmd->sense_buffer[9] = 0xa; /* Additional descriptor length */ | |
3197 | cmd->sense_buffer[10] = 0x80; /* Validity bit */ | |
acd6859b JS |
3198 | |
3199 | /* bghm is a "on the wire" FC frame based count */ | |
3200 | switch (scsi_get_prot_op(cmd)) { | |
3201 | case SCSI_PROT_READ_INSERT: | |
3202 | case SCSI_PROT_WRITE_STRIP: | |
3203 | bghm /= cmd->device->sector_size; | |
3204 | break; | |
3205 | case SCSI_PROT_READ_STRIP: | |
3206 | case SCSI_PROT_WRITE_INSERT: | |
3207 | case SCSI_PROT_READ_PASS: | |
3208 | case SCSI_PROT_WRITE_PASS: | |
3209 | bghm /= (cmd->device->sector_size + | |
3210 | sizeof(struct scsi_dif_tuple)); | |
3211 | break; | |
3212 | } | |
e2a0a9d6 JS |
3213 | |
3214 | failing_sector = scsi_get_lba(cmd); | |
3215 | failing_sector += bghm; | |
3216 | ||
7c56b9fd JS |
3217 | /* Descriptor Information */ |
3218 | put_unaligned_be64(failing_sector, &cmd->sense_buffer[12]); | |
e2a0a9d6 JS |
3219 | } |
3220 | ||
3221 | if (!ret) { | |
3222 | /* No error was reported - problem in FW? */ | |
737d4248 JS |
3223 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
3224 | "9057 BLKGRD: Unknown error in cmd" | |
3225 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
3226 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
3227 | (unsigned long long)scsi_get_lba(cmd), | |
3228 | blk_rq_sectors(cmd->request), bgstat, bghm); | |
3229 | ||
3230 | /* Calcuate what type of error it was */ | |
3231 | lpfc_calc_bg_err(phba, lpfc_cmd); | |
e2a0a9d6 | 3232 | } |
e2a0a9d6 JS |
3233 | out: |
3234 | return ret; | |
dea3101e | 3235 | } |
3236 | ||
da0436e9 JS |
3237 | /** |
3238 | * lpfc_scsi_prep_dma_buf_s4 - DMA mapping for scsi buffer to SLI4 IF spec | |
3239 | * @phba: The Hba for which this call is being executed. | |
3240 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
3241 | * | |
3242 | * This routine does the pci dma mapping for scatter-gather list of scsi cmnd | |
3243 | * field of @lpfc_cmd for device with SLI-4 interface spec. | |
3244 | * | |
3245 | * Return codes: | |
6c8eea54 JS |
3246 | * 1 - Error |
3247 | * 0 - Success | |
da0436e9 JS |
3248 | **/ |
3249 | static int | |
3250 | lpfc_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) | |
3251 | { | |
3252 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
3253 | struct scatterlist *sgel = NULL; | |
3254 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
3255 | struct sli4_sge *sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl; | |
fedd3b7b | 3256 | struct sli4_sge *first_data_sgl; |
da0436e9 JS |
3257 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; |
3258 | dma_addr_t physaddr; | |
3259 | uint32_t num_bde = 0; | |
3260 | uint32_t dma_len; | |
3261 | uint32_t dma_offset = 0; | |
3262 | int nseg; | |
fedd3b7b | 3263 | struct ulp_bde64 *bde; |
da0436e9 JS |
3264 | |
3265 | /* | |
3266 | * There are three possibilities here - use scatter-gather segment, use | |
3267 | * the single mapping, or neither. Start the lpfc command prep by | |
3268 | * bumping the bpl beyond the fcp_cmnd and fcp_rsp regions to the first | |
3269 | * data bde entry. | |
3270 | */ | |
3271 | if (scsi_sg_count(scsi_cmnd)) { | |
3272 | /* | |
3273 | * The driver stores the segment count returned from pci_map_sg | |
3274 | * because this a count of dma-mappings used to map the use_sg | |
3275 | * pages. They are not guaranteed to be the same for those | |
3276 | * architectures that implement an IOMMU. | |
3277 | */ | |
3278 | ||
3279 | nseg = scsi_dma_map(scsi_cmnd); | |
3280 | if (unlikely(!nseg)) | |
3281 | return 1; | |
3282 | sgl += 1; | |
3283 | /* clear the last flag in the fcp_rsp map entry */ | |
3284 | sgl->word2 = le32_to_cpu(sgl->word2); | |
3285 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
3286 | sgl->word2 = cpu_to_le32(sgl->word2); | |
3287 | sgl += 1; | |
fedd3b7b | 3288 | first_data_sgl = sgl; |
da0436e9 JS |
3289 | lpfc_cmd->seg_cnt = nseg; |
3290 | if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) { | |
6a9c52cf JS |
3291 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, "9074 BLKGRD:" |
3292 | " %s: Too many sg segments from " | |
3293 | "dma_map_sg. Config %d, seg_cnt %d\n", | |
3294 | __func__, phba->cfg_sg_seg_cnt, | |
da0436e9 | 3295 | lpfc_cmd->seg_cnt); |
96f7077f | 3296 | lpfc_cmd->seg_cnt = 0; |
da0436e9 JS |
3297 | scsi_dma_unmap(scsi_cmnd); |
3298 | return 1; | |
3299 | } | |
3300 | ||
3301 | /* | |
3302 | * The driver established a maximum scatter-gather segment count | |
3303 | * during probe that limits the number of sg elements in any | |
3304 | * single scsi command. Just run through the seg_cnt and format | |
3305 | * the sge's. | |
3306 | * When using SLI-3 the driver will try to fit all the BDEs into | |
3307 | * the IOCB. If it can't then the BDEs get added to a BPL as it | |
3308 | * does for SLI-2 mode. | |
3309 | */ | |
3310 | scsi_for_each_sg(scsi_cmnd, sgel, nseg, num_bde) { | |
3311 | physaddr = sg_dma_address(sgel); | |
3312 | dma_len = sg_dma_len(sgel); | |
da0436e9 JS |
3313 | sgl->addr_lo = cpu_to_le32(putPaddrLow(physaddr)); |
3314 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(physaddr)); | |
0558056c | 3315 | sgl->word2 = le32_to_cpu(sgl->word2); |
da0436e9 JS |
3316 | if ((num_bde + 1) == nseg) |
3317 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
3318 | else | |
3319 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
3320 | bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); | |
f9bb2da1 | 3321 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA); |
da0436e9 | 3322 | sgl->word2 = cpu_to_le32(sgl->word2); |
28baac74 | 3323 | sgl->sge_len = cpu_to_le32(dma_len); |
da0436e9 JS |
3324 | dma_offset += dma_len; |
3325 | sgl++; | |
3326 | } | |
fedd3b7b JS |
3327 | /* setup the performance hint (first data BDE) if enabled */ |
3328 | if (phba->sli3_options & LPFC_SLI4_PERFH_ENABLED) { | |
3329 | bde = (struct ulp_bde64 *) | |
3330 | &(iocb_cmd->unsli3.sli3Words[5]); | |
3331 | bde->addrLow = first_data_sgl->addr_lo; | |
3332 | bde->addrHigh = first_data_sgl->addr_hi; | |
3333 | bde->tus.f.bdeSize = | |
3334 | le32_to_cpu(first_data_sgl->sge_len); | |
3335 | bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
3336 | bde->tus.w = cpu_to_le32(bde->tus.w); | |
3337 | } | |
da0436e9 JS |
3338 | } else { |
3339 | sgl += 1; | |
3340 | /* clear the last flag in the fcp_rsp map entry */ | |
3341 | sgl->word2 = le32_to_cpu(sgl->word2); | |
3342 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
3343 | sgl->word2 = cpu_to_le32(sgl->word2); | |
3344 | } | |
3345 | ||
3346 | /* | |
3347 | * Finish initializing those IOCB fields that are dependent on the | |
3348 | * scsi_cmnd request_buffer. Note that for SLI-2 the bdeSize is | |
3349 | * explicitly reinitialized. | |
3350 | * all iocb memory resources are reused. | |
3351 | */ | |
3352 | fcp_cmnd->fcpDl = cpu_to_be32(scsi_bufflen(scsi_cmnd)); | |
3353 | ||
3354 | /* | |
3355 | * Due to difference in data length between DIF/non-DIF paths, | |
3356 | * we need to set word 4 of IOCB here | |
3357 | */ | |
3358 | iocb_cmd->un.fcpi.fcpi_parm = scsi_bufflen(scsi_cmnd); | |
1ba981fd JS |
3359 | |
3360 | /* | |
3361 | * If the OAS driver feature is enabled and the lun is enabled for | |
3362 | * OAS, set the oas iocb related flags. | |
3363 | */ | |
f38fa0bb | 3364 | if ((phba->cfg_fof) && ((struct lpfc_device_data *) |
1ba981fd | 3365 | scsi_cmnd->device->hostdata)->oas_enabled) |
9bd2bff5 | 3366 | lpfc_cmd->cur_iocbq.iocb_flag |= (LPFC_IO_OAS | LPFC_IO_FOF); |
da0436e9 JS |
3367 | return 0; |
3368 | } | |
3369 | ||
acd6859b JS |
3370 | /** |
3371 | * lpfc_bg_scsi_prep_dma_buf_s4 - DMA mapping for scsi buffer to SLI4 IF spec | |
3372 | * @phba: The Hba for which this call is being executed. | |
3373 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
3374 | * | |
3375 | * This is the protection/DIF aware version of | |
3376 | * lpfc_scsi_prep_dma_buf(). It may be a good idea to combine the | |
3377 | * two functions eventually, but for now, it's here | |
3378 | **/ | |
3379 | static int | |
3380 | lpfc_bg_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, | |
3381 | struct lpfc_scsi_buf *lpfc_cmd) | |
3382 | { | |
3383 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
3384 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
3385 | struct sli4_sge *sgl = (struct sli4_sge *)(lpfc_cmd->fcp_bpl); | |
3386 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; | |
96f7077f | 3387 | uint32_t num_sge = 0; |
acd6859b JS |
3388 | int datasegcnt, protsegcnt, datadir = scsi_cmnd->sc_data_direction; |
3389 | int prot_group_type = 0; | |
3390 | int fcpdl; | |
3391 | ||
3392 | /* | |
3393 | * Start the lpfc command prep by bumping the sgl beyond fcp_cmnd | |
96f7077f | 3394 | * fcp_rsp regions to the first data sge entry |
acd6859b JS |
3395 | */ |
3396 | if (scsi_sg_count(scsi_cmnd)) { | |
3397 | /* | |
3398 | * The driver stores the segment count returned from pci_map_sg | |
3399 | * because this a count of dma-mappings used to map the use_sg | |
3400 | * pages. They are not guaranteed to be the same for those | |
3401 | * architectures that implement an IOMMU. | |
3402 | */ | |
3403 | datasegcnt = dma_map_sg(&phba->pcidev->dev, | |
3404 | scsi_sglist(scsi_cmnd), | |
3405 | scsi_sg_count(scsi_cmnd), datadir); | |
3406 | if (unlikely(!datasegcnt)) | |
3407 | return 1; | |
3408 | ||
3409 | sgl += 1; | |
3410 | /* clear the last flag in the fcp_rsp map entry */ | |
3411 | sgl->word2 = le32_to_cpu(sgl->word2); | |
3412 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
3413 | sgl->word2 = cpu_to_le32(sgl->word2); | |
3414 | ||
3415 | sgl += 1; | |
3416 | lpfc_cmd->seg_cnt = datasegcnt; | |
96f7077f JS |
3417 | |
3418 | /* First check if data segment count from SCSI Layer is good */ | |
3419 | if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) | |
3420 | goto err; | |
acd6859b JS |
3421 | |
3422 | prot_group_type = lpfc_prot_group_type(phba, scsi_cmnd); | |
3423 | ||
3424 | switch (prot_group_type) { | |
3425 | case LPFC_PG_TYPE_NO_DIF: | |
96f7077f JS |
3426 | /* Here we need to add a DISEED to the count */ |
3427 | if ((lpfc_cmd->seg_cnt + 1) > phba->cfg_total_seg_cnt) | |
3428 | goto err; | |
3429 | ||
3430 | num_sge = lpfc_bg_setup_sgl(phba, scsi_cmnd, sgl, | |
acd6859b | 3431 | datasegcnt); |
96f7077f | 3432 | |
acd6859b | 3433 | /* we should have 2 or more entries in buffer list */ |
96f7077f | 3434 | if (num_sge < 2) |
acd6859b JS |
3435 | goto err; |
3436 | break; | |
96f7077f JS |
3437 | |
3438 | case LPFC_PG_TYPE_DIF_BUF: | |
acd6859b JS |
3439 | /* |
3440 | * This type indicates that protection buffers are | |
3441 | * passed to the driver, so that needs to be prepared | |
3442 | * for DMA | |
3443 | */ | |
3444 | protsegcnt = dma_map_sg(&phba->pcidev->dev, | |
3445 | scsi_prot_sglist(scsi_cmnd), | |
3446 | scsi_prot_sg_count(scsi_cmnd), datadir); | |
3447 | if (unlikely(!protsegcnt)) { | |
3448 | scsi_dma_unmap(scsi_cmnd); | |
3449 | return 1; | |
3450 | } | |
3451 | ||
3452 | lpfc_cmd->prot_seg_cnt = protsegcnt; | |
96f7077f JS |
3453 | /* |
3454 | * There is a minimun of 3 SGEs used for every | |
3455 | * protection data segment. | |
3456 | */ | |
3457 | if ((lpfc_cmd->prot_seg_cnt * 3) > | |
3458 | (phba->cfg_total_seg_cnt - 2)) | |
3459 | goto err; | |
acd6859b | 3460 | |
96f7077f | 3461 | num_sge = lpfc_bg_setup_sgl_prot(phba, scsi_cmnd, sgl, |
acd6859b | 3462 | datasegcnt, protsegcnt); |
96f7077f | 3463 | |
acd6859b | 3464 | /* we should have 3 or more entries in buffer list */ |
96f7077f JS |
3465 | if ((num_sge < 3) || |
3466 | (num_sge > phba->cfg_total_seg_cnt)) | |
acd6859b JS |
3467 | goto err; |
3468 | break; | |
96f7077f | 3469 | |
acd6859b JS |
3470 | case LPFC_PG_TYPE_INVALID: |
3471 | default: | |
96f7077f JS |
3472 | scsi_dma_unmap(scsi_cmnd); |
3473 | lpfc_cmd->seg_cnt = 0; | |
3474 | ||
acd6859b JS |
3475 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, |
3476 | "9083 Unexpected protection group %i\n", | |
3477 | prot_group_type); | |
3478 | return 1; | |
3479 | } | |
3480 | } | |
3481 | ||
8012cc38 JS |
3482 | switch (scsi_get_prot_op(scsi_cmnd)) { |
3483 | case SCSI_PROT_WRITE_STRIP: | |
3484 | case SCSI_PROT_READ_STRIP: | |
3485 | lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_IO_DIF_STRIP; | |
3486 | break; | |
3487 | case SCSI_PROT_WRITE_INSERT: | |
3488 | case SCSI_PROT_READ_INSERT: | |
3489 | lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_IO_DIF_INSERT; | |
3490 | break; | |
3491 | case SCSI_PROT_WRITE_PASS: | |
3492 | case SCSI_PROT_READ_PASS: | |
3493 | lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_IO_DIF_PASS; | |
3494 | break; | |
3495 | } | |
3496 | ||
acd6859b | 3497 | fcpdl = lpfc_bg_scsi_adjust_dl(phba, lpfc_cmd); |
acd6859b JS |
3498 | fcp_cmnd->fcpDl = be32_to_cpu(fcpdl); |
3499 | ||
3500 | /* | |
3501 | * Due to difference in data length between DIF/non-DIF paths, | |
3502 | * we need to set word 4 of IOCB here | |
3503 | */ | |
3504 | iocb_cmd->un.fcpi.fcpi_parm = fcpdl; | |
acd6859b | 3505 | |
9bd2bff5 JS |
3506 | /* |
3507 | * If the OAS driver feature is enabled and the lun is enabled for | |
3508 | * OAS, set the oas iocb related flags. | |
3509 | */ | |
3510 | if ((phba->cfg_fof) && ((struct lpfc_device_data *) | |
3511 | scsi_cmnd->device->hostdata)->oas_enabled) | |
3512 | lpfc_cmd->cur_iocbq.iocb_flag |= (LPFC_IO_OAS | LPFC_IO_FOF); | |
3513 | ||
acd6859b JS |
3514 | return 0; |
3515 | err: | |
96f7077f JS |
3516 | if (lpfc_cmd->seg_cnt) |
3517 | scsi_dma_unmap(scsi_cmnd); | |
3518 | if (lpfc_cmd->prot_seg_cnt) | |
3519 | dma_unmap_sg(&phba->pcidev->dev, scsi_prot_sglist(scsi_cmnd), | |
3520 | scsi_prot_sg_count(scsi_cmnd), | |
3521 | scsi_cmnd->sc_data_direction); | |
3522 | ||
acd6859b | 3523 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, |
96f7077f JS |
3524 | "9084 Cannot setup S/G List for HBA" |
3525 | "IO segs %d/%d SGL %d SCSI %d: %d %d\n", | |
3526 | lpfc_cmd->seg_cnt, lpfc_cmd->prot_seg_cnt, | |
3527 | phba->cfg_total_seg_cnt, phba->cfg_sg_seg_cnt, | |
3528 | prot_group_type, num_sge); | |
3529 | ||
3530 | lpfc_cmd->seg_cnt = 0; | |
3531 | lpfc_cmd->prot_seg_cnt = 0; | |
acd6859b JS |
3532 | return 1; |
3533 | } | |
3534 | ||
3772a991 JS |
3535 | /** |
3536 | * lpfc_scsi_prep_dma_buf - Wrapper function for DMA mapping of scsi buffer | |
3537 | * @phba: The Hba for which this call is being executed. | |
3538 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
3539 | * | |
3540 | * This routine wraps the actual DMA mapping function pointer from the | |
3541 | * lpfc_hba struct. | |
3542 | * | |
3543 | * Return codes: | |
6c8eea54 JS |
3544 | * 1 - Error |
3545 | * 0 - Success | |
3772a991 JS |
3546 | **/ |
3547 | static inline int | |
3548 | lpfc_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) | |
3549 | { | |
3550 | return phba->lpfc_scsi_prep_dma_buf(phba, lpfc_cmd); | |
3551 | } | |
3552 | ||
acd6859b JS |
3553 | /** |
3554 | * lpfc_bg_scsi_prep_dma_buf - Wrapper function for DMA mapping of scsi buffer | |
3555 | * using BlockGuard. | |
3556 | * @phba: The Hba for which this call is being executed. | |
3557 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
3558 | * | |
3559 | * This routine wraps the actual DMA mapping function pointer from the | |
3560 | * lpfc_hba struct. | |
3561 | * | |
3562 | * Return codes: | |
3563 | * 1 - Error | |
3564 | * 0 - Success | |
3565 | **/ | |
3566 | static inline int | |
3567 | lpfc_bg_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) | |
3568 | { | |
3569 | return phba->lpfc_bg_scsi_prep_dma_buf(phba, lpfc_cmd); | |
3570 | } | |
3571 | ||
ea2151b4 | 3572 | /** |
3621a710 | 3573 | * lpfc_send_scsi_error_event - Posts an event when there is SCSI error |
ea2151b4 JS |
3574 | * @phba: Pointer to hba context object. |
3575 | * @vport: Pointer to vport object. | |
3576 | * @lpfc_cmd: Pointer to lpfc scsi command which reported the error. | |
3577 | * @rsp_iocb: Pointer to response iocb object which reported error. | |
3578 | * | |
3579 | * This function posts an event when there is a SCSI command reporting | |
3580 | * error from the scsi device. | |
3581 | **/ | |
3582 | static void | |
3583 | lpfc_send_scsi_error_event(struct lpfc_hba *phba, struct lpfc_vport *vport, | |
3584 | struct lpfc_scsi_buf *lpfc_cmd, struct lpfc_iocbq *rsp_iocb) { | |
3585 | struct scsi_cmnd *cmnd = lpfc_cmd->pCmd; | |
3586 | struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp; | |
3587 | uint32_t resp_info = fcprsp->rspStatus2; | |
3588 | uint32_t scsi_status = fcprsp->rspStatus3; | |
3589 | uint32_t fcpi_parm = rsp_iocb->iocb.un.fcpi.fcpi_parm; | |
3590 | struct lpfc_fast_path_event *fast_path_evt = NULL; | |
3591 | struct lpfc_nodelist *pnode = lpfc_cmd->rdata->pnode; | |
3592 | unsigned long flags; | |
3593 | ||
5989b8d4 JS |
3594 | if (!pnode || !NLP_CHK_NODE_ACT(pnode)) |
3595 | return; | |
3596 | ||
ea2151b4 JS |
3597 | /* If there is queuefull or busy condition send a scsi event */ |
3598 | if ((cmnd->result == SAM_STAT_TASK_SET_FULL) || | |
3599 | (cmnd->result == SAM_STAT_BUSY)) { | |
3600 | fast_path_evt = lpfc_alloc_fast_evt(phba); | |
3601 | if (!fast_path_evt) | |
3602 | return; | |
3603 | fast_path_evt->un.scsi_evt.event_type = | |
3604 | FC_REG_SCSI_EVENT; | |
3605 | fast_path_evt->un.scsi_evt.subcategory = | |
3606 | (cmnd->result == SAM_STAT_TASK_SET_FULL) ? | |
3607 | LPFC_EVENT_QFULL : LPFC_EVENT_DEVBSY; | |
3608 | fast_path_evt->un.scsi_evt.lun = cmnd->device->lun; | |
3609 | memcpy(&fast_path_evt->un.scsi_evt.wwpn, | |
3610 | &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
3611 | memcpy(&fast_path_evt->un.scsi_evt.wwnn, | |
3612 | &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
3613 | } else if ((resp_info & SNS_LEN_VALID) && fcprsp->rspSnsLen && | |
3614 | ((cmnd->cmnd[0] == READ_10) || (cmnd->cmnd[0] == WRITE_10))) { | |
3615 | fast_path_evt = lpfc_alloc_fast_evt(phba); | |
3616 | if (!fast_path_evt) | |
3617 | return; | |
3618 | fast_path_evt->un.check_cond_evt.scsi_event.event_type = | |
3619 | FC_REG_SCSI_EVENT; | |
3620 | fast_path_evt->un.check_cond_evt.scsi_event.subcategory = | |
3621 | LPFC_EVENT_CHECK_COND; | |
3622 | fast_path_evt->un.check_cond_evt.scsi_event.lun = | |
3623 | cmnd->device->lun; | |
3624 | memcpy(&fast_path_evt->un.check_cond_evt.scsi_event.wwpn, | |
3625 | &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
3626 | memcpy(&fast_path_evt->un.check_cond_evt.scsi_event.wwnn, | |
3627 | &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
3628 | fast_path_evt->un.check_cond_evt.sense_key = | |
3629 | cmnd->sense_buffer[2] & 0xf; | |
3630 | fast_path_evt->un.check_cond_evt.asc = cmnd->sense_buffer[12]; | |
3631 | fast_path_evt->un.check_cond_evt.ascq = cmnd->sense_buffer[13]; | |
3632 | } else if ((cmnd->sc_data_direction == DMA_FROM_DEVICE) && | |
3633 | fcpi_parm && | |
3634 | ((be32_to_cpu(fcprsp->rspResId) != fcpi_parm) || | |
3635 | ((scsi_status == SAM_STAT_GOOD) && | |
3636 | !(resp_info & (RESID_UNDER | RESID_OVER))))) { | |
3637 | /* | |
3638 | * If status is good or resid does not match with fcp_param and | |
3639 | * there is valid fcpi_parm, then there is a read_check error | |
3640 | */ | |
3641 | fast_path_evt = lpfc_alloc_fast_evt(phba); | |
3642 | if (!fast_path_evt) | |
3643 | return; | |
3644 | fast_path_evt->un.read_check_error.header.event_type = | |
3645 | FC_REG_FABRIC_EVENT; | |
3646 | fast_path_evt->un.read_check_error.header.subcategory = | |
3647 | LPFC_EVENT_FCPRDCHKERR; | |
3648 | memcpy(&fast_path_evt->un.read_check_error.header.wwpn, | |
3649 | &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
3650 | memcpy(&fast_path_evt->un.read_check_error.header.wwnn, | |
3651 | &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
3652 | fast_path_evt->un.read_check_error.lun = cmnd->device->lun; | |
3653 | fast_path_evt->un.read_check_error.opcode = cmnd->cmnd[0]; | |
3654 | fast_path_evt->un.read_check_error.fcpiparam = | |
3655 | fcpi_parm; | |
3656 | } else | |
3657 | return; | |
3658 | ||
3659 | fast_path_evt->vport = vport; | |
3660 | spin_lock_irqsave(&phba->hbalock, flags); | |
3661 | list_add_tail(&fast_path_evt->work_evt.evt_listp, &phba->work_list); | |
3662 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
3663 | lpfc_worker_wake_up(phba); | |
3664 | return; | |
3665 | } | |
9bad7671 JS |
3666 | |
3667 | /** | |
f1126688 | 3668 | * lpfc_scsi_unprep_dma_buf - Un-map DMA mapping of SG-list for dev |
3772a991 | 3669 | * @phba: The HBA for which this call is being executed. |
9bad7671 JS |
3670 | * @psb: The scsi buffer which is going to be un-mapped. |
3671 | * | |
3672 | * This routine does DMA un-mapping of scatter gather list of scsi command | |
3772a991 | 3673 | * field of @lpfc_cmd for device with SLI-3 interface spec. |
9bad7671 | 3674 | **/ |
bcf4dbfa | 3675 | static void |
f1126688 | 3676 | lpfc_scsi_unprep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) |
bcf4dbfa JS |
3677 | { |
3678 | /* | |
3679 | * There are only two special cases to consider. (1) the scsi command | |
3680 | * requested scatter-gather usage or (2) the scsi command allocated | |
3681 | * a request buffer, but did not request use_sg. There is a third | |
3682 | * case, but it does not require resource deallocation. | |
3683 | */ | |
a0b4f78f FT |
3684 | if (psb->seg_cnt > 0) |
3685 | scsi_dma_unmap(psb->pCmd); | |
e2a0a9d6 JS |
3686 | if (psb->prot_seg_cnt > 0) |
3687 | dma_unmap_sg(&phba->pcidev->dev, scsi_prot_sglist(psb->pCmd), | |
3688 | scsi_prot_sg_count(psb->pCmd), | |
3689 | psb->pCmd->sc_data_direction); | |
bcf4dbfa JS |
3690 | } |
3691 | ||
9bad7671 | 3692 | /** |
3621a710 | 3693 | * lpfc_handler_fcp_err - FCP response handler |
9bad7671 JS |
3694 | * @vport: The virtual port for which this call is being executed. |
3695 | * @lpfc_cmd: Pointer to lpfc_scsi_buf data structure. | |
3696 | * @rsp_iocb: The response IOCB which contains FCP error. | |
3697 | * | |
3698 | * This routine is called to process response IOCB with status field | |
3699 | * IOSTAT_FCP_RSP_ERROR. This routine sets result field of scsi command | |
3700 | * based upon SCSI and FCP error. | |
3701 | **/ | |
dea3101e | 3702 | static void |
2e0fef85 JS |
3703 | lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, |
3704 | struct lpfc_iocbq *rsp_iocb) | |
dea3101e | 3705 | { |
3706 | struct scsi_cmnd *cmnd = lpfc_cmd->pCmd; | |
3707 | struct fcp_cmnd *fcpcmd = lpfc_cmd->fcp_cmnd; | |
3708 | struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp; | |
7054a606 | 3709 | uint32_t fcpi_parm = rsp_iocb->iocb.un.fcpi.fcpi_parm; |
dea3101e | 3710 | uint32_t resp_info = fcprsp->rspStatus2; |
3711 | uint32_t scsi_status = fcprsp->rspStatus3; | |
c7743956 | 3712 | uint32_t *lp; |
dea3101e | 3713 | uint32_t host_status = DID_OK; |
3714 | uint32_t rsplen = 0; | |
c7743956 | 3715 | uint32_t logit = LOG_FCP | LOG_FCP_ERROR; |
dea3101e | 3716 | |
ea2151b4 | 3717 | |
dea3101e | 3718 | /* |
3719 | * If this is a task management command, there is no | |
3720 | * scsi packet associated with this lpfc_cmd. The driver | |
3721 | * consumes it. | |
3722 | */ | |
3723 | if (fcpcmd->fcpCntl2) { | |
3724 | scsi_status = 0; | |
3725 | goto out; | |
3726 | } | |
3727 | ||
6a9c52cf JS |
3728 | if (resp_info & RSP_LEN_VALID) { |
3729 | rsplen = be32_to_cpu(fcprsp->rspRspLen); | |
e40a02c1 | 3730 | if (rsplen != 0 && rsplen != 4 && rsplen != 8) { |
6a9c52cf JS |
3731 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
3732 | "2719 Invalid response length: " | |
9cb78c16 | 3733 | "tgt x%x lun x%llx cmnd x%x rsplen x%x\n", |
6a9c52cf JS |
3734 | cmnd->device->id, |
3735 | cmnd->device->lun, cmnd->cmnd[0], | |
3736 | rsplen); | |
3737 | host_status = DID_ERROR; | |
3738 | goto out; | |
3739 | } | |
e40a02c1 JS |
3740 | if (fcprsp->rspInfo3 != RSP_NO_FAILURE) { |
3741 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
3742 | "2757 Protocol failure detected during " | |
3743 | "processing of FCP I/O op: " | |
9cb78c16 | 3744 | "tgt x%x lun x%llx cmnd x%x rspInfo3 x%x\n", |
e40a02c1 JS |
3745 | cmnd->device->id, |
3746 | cmnd->device->lun, cmnd->cmnd[0], | |
3747 | fcprsp->rspInfo3); | |
3748 | host_status = DID_ERROR; | |
3749 | goto out; | |
3750 | } | |
6a9c52cf JS |
3751 | } |
3752 | ||
c7743956 JS |
3753 | if ((resp_info & SNS_LEN_VALID) && fcprsp->rspSnsLen) { |
3754 | uint32_t snslen = be32_to_cpu(fcprsp->rspSnsLen); | |
3755 | if (snslen > SCSI_SENSE_BUFFERSIZE) | |
3756 | snslen = SCSI_SENSE_BUFFERSIZE; | |
3757 | ||
3758 | if (resp_info & RSP_LEN_VALID) | |
3759 | rsplen = be32_to_cpu(fcprsp->rspRspLen); | |
3760 | memcpy(cmnd->sense_buffer, &fcprsp->rspInfo0 + rsplen, snslen); | |
3761 | } | |
3762 | lp = (uint32_t *)cmnd->sense_buffer; | |
3763 | ||
aa1c7ee7 JS |
3764 | /* special handling for under run conditions */ |
3765 | if (!scsi_status && (resp_info & RESID_UNDER)) { | |
3766 | /* don't log under runs if fcp set... */ | |
3767 | if (vport->cfg_log_verbose & LOG_FCP) | |
3768 | logit = LOG_FCP_ERROR; | |
3769 | /* unless operator says so */ | |
3770 | if (vport->cfg_log_verbose & LOG_FCP_UNDER) | |
3771 | logit = LOG_FCP_UNDER; | |
3772 | } | |
c7743956 | 3773 | |
e8b62011 | 3774 | lpfc_printf_vlog(vport, KERN_WARNING, logit, |
e2a0a9d6 | 3775 | "9024 FCP command x%x failed: x%x SNS x%x x%x " |
e8b62011 JS |
3776 | "Data: x%x x%x x%x x%x x%x\n", |
3777 | cmnd->cmnd[0], scsi_status, | |
3778 | be32_to_cpu(*lp), be32_to_cpu(*(lp + 3)), resp_info, | |
3779 | be32_to_cpu(fcprsp->rspResId), | |
3780 | be32_to_cpu(fcprsp->rspSnsLen), | |
3781 | be32_to_cpu(fcprsp->rspRspLen), | |
3782 | fcprsp->rspInfo3); | |
dea3101e | 3783 | |
a0b4f78f | 3784 | scsi_set_resid(cmnd, 0); |
dea3101e | 3785 | if (resp_info & RESID_UNDER) { |
a0b4f78f | 3786 | scsi_set_resid(cmnd, be32_to_cpu(fcprsp->rspResId)); |
dea3101e | 3787 | |
73d91e50 | 3788 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP_UNDER, |
e2a0a9d6 | 3789 | "9025 FCP Read Underrun, expected %d, " |
e8b62011 JS |
3790 | "residual %d Data: x%x x%x x%x\n", |
3791 | be32_to_cpu(fcpcmd->fcpDl), | |
3792 | scsi_get_resid(cmnd), fcpi_parm, cmnd->cmnd[0], | |
3793 | cmnd->underflow); | |
dea3101e | 3794 | |
7054a606 JS |
3795 | /* |
3796 | * If there is an under run check if under run reported by | |
3797 | * storage array is same as the under run reported by HBA. | |
3798 | * If this is not same, there is a dropped frame. | |
3799 | */ | |
3800 | if ((cmnd->sc_data_direction == DMA_FROM_DEVICE) && | |
3801 | fcpi_parm && | |
a0b4f78f | 3802 | (scsi_get_resid(cmnd) != fcpi_parm)) { |
e8b62011 JS |
3803 | lpfc_printf_vlog(vport, KERN_WARNING, |
3804 | LOG_FCP | LOG_FCP_ERROR, | |
e2a0a9d6 | 3805 | "9026 FCP Read Check Error " |
e8b62011 JS |
3806 | "and Underrun Data: x%x x%x x%x x%x\n", |
3807 | be32_to_cpu(fcpcmd->fcpDl), | |
3808 | scsi_get_resid(cmnd), fcpi_parm, | |
3809 | cmnd->cmnd[0]); | |
a0b4f78f | 3810 | scsi_set_resid(cmnd, scsi_bufflen(cmnd)); |
7054a606 JS |
3811 | host_status = DID_ERROR; |
3812 | } | |
dea3101e | 3813 | /* |
3814 | * The cmnd->underflow is the minimum number of bytes that must | |
25985edc | 3815 | * be transferred for this command. Provided a sense condition |
dea3101e | 3816 | * is not present, make sure the actual amount transferred is at |
3817 | * least the underflow value or fail. | |
3818 | */ | |
3819 | if (!(resp_info & SNS_LEN_VALID) && | |
3820 | (scsi_status == SAM_STAT_GOOD) && | |
a0b4f78f FT |
3821 | (scsi_bufflen(cmnd) - scsi_get_resid(cmnd) |
3822 | < cmnd->underflow)) { | |
e8b62011 | 3823 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, |
e2a0a9d6 | 3824 | "9027 FCP command x%x residual " |
e8b62011 JS |
3825 | "underrun converted to error " |
3826 | "Data: x%x x%x x%x\n", | |
66dbfbe6 | 3827 | cmnd->cmnd[0], scsi_bufflen(cmnd), |
e8b62011 | 3828 | scsi_get_resid(cmnd), cmnd->underflow); |
dea3101e | 3829 | host_status = DID_ERROR; |
3830 | } | |
3831 | } else if (resp_info & RESID_OVER) { | |
e8b62011 | 3832 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
e2a0a9d6 | 3833 | "9028 FCP command x%x residual overrun error. " |
e4e74273 | 3834 | "Data: x%x x%x\n", cmnd->cmnd[0], |
e8b62011 | 3835 | scsi_bufflen(cmnd), scsi_get_resid(cmnd)); |
dea3101e | 3836 | host_status = DID_ERROR; |
3837 | ||
3838 | /* | |
3839 | * Check SLI validation that all the transfer was actually done | |
26373d23 | 3840 | * (fcpi_parm should be zero). Apply check only to reads. |
dea3101e | 3841 | */ |
26373d23 | 3842 | } else if (fcpi_parm && (cmnd->sc_data_direction == DMA_FROM_DEVICE)) { |
e8b62011 | 3843 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP | LOG_FCP_ERROR, |
26373d23 | 3844 | "9029 FCP Read Check Error Data: " |
eee8877e | 3845 | "x%x x%x x%x x%x x%x\n", |
e8b62011 JS |
3846 | be32_to_cpu(fcpcmd->fcpDl), |
3847 | be32_to_cpu(fcprsp->rspResId), | |
eee8877e JS |
3848 | fcpi_parm, cmnd->cmnd[0], scsi_status); |
3849 | switch (scsi_status) { | |
3850 | case SAM_STAT_GOOD: | |
3851 | case SAM_STAT_CHECK_CONDITION: | |
3852 | /* Fabric dropped a data frame. Fail any successful | |
3853 | * command in which we detected dropped frames. | |
3854 | * A status of good or some check conditions could | |
3855 | * be considered a successful command. | |
3856 | */ | |
3857 | host_status = DID_ERROR; | |
3858 | break; | |
3859 | } | |
a0b4f78f | 3860 | scsi_set_resid(cmnd, scsi_bufflen(cmnd)); |
dea3101e | 3861 | } |
3862 | ||
3863 | out: | |
3864 | cmnd->result = ScsiResult(host_status, scsi_status); | |
ea2151b4 | 3865 | lpfc_send_scsi_error_event(vport->phba, vport, lpfc_cmd, rsp_iocb); |
dea3101e | 3866 | } |
3867 | ||
9bad7671 | 3868 | /** |
3621a710 | 3869 | * lpfc_scsi_cmd_iocb_cmpl - Scsi cmnd IOCB completion routine |
9bad7671 JS |
3870 | * @phba: The Hba for which this call is being executed. |
3871 | * @pIocbIn: The command IOCBQ for the scsi cmnd. | |
3772a991 | 3872 | * @pIocbOut: The response IOCBQ for the scsi cmnd. |
9bad7671 JS |
3873 | * |
3874 | * This routine assigns scsi command result by looking into response IOCB | |
3875 | * status field appropriately. This routine handles QUEUE FULL condition as | |
3876 | * well by ramping down device queue depth. | |
3877 | **/ | |
dea3101e | 3878 | static void |
3879 | lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn, | |
3880 | struct lpfc_iocbq *pIocbOut) | |
3881 | { | |
3882 | struct lpfc_scsi_buf *lpfc_cmd = | |
3883 | (struct lpfc_scsi_buf *) pIocbIn->context1; | |
2e0fef85 | 3884 | struct lpfc_vport *vport = pIocbIn->vport; |
dea3101e | 3885 | struct lpfc_rport_data *rdata = lpfc_cmd->rdata; |
3886 | struct lpfc_nodelist *pnode = rdata->pnode; | |
75baf696 | 3887 | struct scsi_cmnd *cmd; |
445cf4f4 | 3888 | int result; |
5ffc266e | 3889 | int depth; |
fa61a54e | 3890 | unsigned long flags; |
ea2151b4 | 3891 | struct lpfc_fast_path_event *fast_path_evt; |
75baf696 | 3892 | struct Scsi_Host *shost; |
a257bf90 | 3893 | uint32_t queue_depth, scsi_id; |
73d91e50 | 3894 | uint32_t logit = LOG_FCP; |
dea3101e | 3895 | |
75baf696 JS |
3896 | /* Sanity check on return of outstanding command */ |
3897 | if (!(lpfc_cmd->pCmd)) | |
3898 | return; | |
3899 | cmd = lpfc_cmd->pCmd; | |
3900 | shost = cmd->device->host; | |
3901 | ||
e3d2b802 | 3902 | lpfc_cmd->result = (pIocbOut->iocb.un.ulpWord[4] & IOERR_PARAM_MASK); |
dea3101e | 3903 | lpfc_cmd->status = pIocbOut->iocb.ulpStatus; |
341af102 JS |
3904 | /* pick up SLI4 exhange busy status from HBA */ |
3905 | lpfc_cmd->exch_busy = pIocbOut->iocb_flag & LPFC_EXCHANGE_BUSY; | |
3906 | ||
9a6b09c0 JS |
3907 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
3908 | if (lpfc_cmd->prot_data_type) { | |
3909 | struct scsi_dif_tuple *src = NULL; | |
3910 | ||
3911 | src = (struct scsi_dif_tuple *)lpfc_cmd->prot_data_segment; | |
3912 | /* | |
3913 | * Used to restore any changes to protection | |
3914 | * data for error injection. | |
3915 | */ | |
3916 | switch (lpfc_cmd->prot_data_type) { | |
3917 | case LPFC_INJERR_REFTAG: | |
3918 | src->ref_tag = | |
3919 | lpfc_cmd->prot_data; | |
3920 | break; | |
3921 | case LPFC_INJERR_APPTAG: | |
3922 | src->app_tag = | |
3923 | (uint16_t)lpfc_cmd->prot_data; | |
3924 | break; | |
3925 | case LPFC_INJERR_GUARD: | |
3926 | src->guard_tag = | |
3927 | (uint16_t)lpfc_cmd->prot_data; | |
3928 | break; | |
3929 | default: | |
3930 | break; | |
3931 | } | |
3932 | ||
3933 | lpfc_cmd->prot_data = 0; | |
3934 | lpfc_cmd->prot_data_type = 0; | |
3935 | lpfc_cmd->prot_data_segment = NULL; | |
3936 | } | |
3937 | #endif | |
109f6ed0 JS |
3938 | if (pnode && NLP_CHK_NODE_ACT(pnode)) |
3939 | atomic_dec(&pnode->cmd_pending); | |
dea3101e | 3940 | |
3941 | if (lpfc_cmd->status) { | |
3942 | if (lpfc_cmd->status == IOSTAT_LOCAL_REJECT && | |
3943 | (lpfc_cmd->result & IOERR_DRVR_MASK)) | |
3944 | lpfc_cmd->status = IOSTAT_DRIVER_REJECT; | |
3945 | else if (lpfc_cmd->status >= IOSTAT_CNT) | |
3946 | lpfc_cmd->status = IOSTAT_DEFAULT; | |
aa1c7ee7 JS |
3947 | if (lpfc_cmd->status == IOSTAT_FCP_RSP_ERROR && |
3948 | !lpfc_cmd->fcp_rsp->rspStatus3 && | |
3949 | (lpfc_cmd->fcp_rsp->rspStatus2 & RESID_UNDER) && | |
3950 | !(vport->cfg_log_verbose & LOG_FCP_UNDER)) | |
73d91e50 JS |
3951 | logit = 0; |
3952 | else | |
3953 | logit = LOG_FCP | LOG_FCP_UNDER; | |
3954 | lpfc_printf_vlog(vport, KERN_WARNING, logit, | |
9cb78c16 | 3955 | "9030 FCP cmd x%x failed <%d/%lld> " |
5a0d80fc JS |
3956 | "status: x%x result: x%x " |
3957 | "sid: x%x did: x%x oxid: x%x " | |
3958 | "Data: x%x x%x\n", | |
73d91e50 JS |
3959 | cmd->cmnd[0], |
3960 | cmd->device ? cmd->device->id : 0xffff, | |
3961 | cmd->device ? cmd->device->lun : 0xffff, | |
3962 | lpfc_cmd->status, lpfc_cmd->result, | |
3bf41ba9 JS |
3963 | vport->fc_myDID, |
3964 | (pnode) ? pnode->nlp_DID : 0, | |
5a0d80fc JS |
3965 | phba->sli_rev == LPFC_SLI_REV4 ? |
3966 | lpfc_cmd->cur_iocbq.sli4_xritag : 0xffff, | |
73d91e50 JS |
3967 | pIocbOut->iocb.ulpContext, |
3968 | lpfc_cmd->cur_iocbq.iocb.ulpIoTag); | |
dea3101e | 3969 | |
3970 | switch (lpfc_cmd->status) { | |
3971 | case IOSTAT_FCP_RSP_ERROR: | |
3972 | /* Call FCP RSP handler to determine result */ | |
2e0fef85 | 3973 | lpfc_handle_fcp_err(vport, lpfc_cmd, pIocbOut); |
dea3101e | 3974 | break; |
3975 | case IOSTAT_NPORT_BSY: | |
3976 | case IOSTAT_FABRIC_BSY: | |
0f1f53a7 | 3977 | cmd->result = ScsiResult(DID_TRANSPORT_DISRUPTED, 0); |
ea2151b4 JS |
3978 | fast_path_evt = lpfc_alloc_fast_evt(phba); |
3979 | if (!fast_path_evt) | |
3980 | break; | |
3981 | fast_path_evt->un.fabric_evt.event_type = | |
3982 | FC_REG_FABRIC_EVENT; | |
3983 | fast_path_evt->un.fabric_evt.subcategory = | |
3984 | (lpfc_cmd->status == IOSTAT_NPORT_BSY) ? | |
3985 | LPFC_EVENT_PORT_BUSY : LPFC_EVENT_FABRIC_BUSY; | |
3986 | if (pnode && NLP_CHK_NODE_ACT(pnode)) { | |
3987 | memcpy(&fast_path_evt->un.fabric_evt.wwpn, | |
3988 | &pnode->nlp_portname, | |
3989 | sizeof(struct lpfc_name)); | |
3990 | memcpy(&fast_path_evt->un.fabric_evt.wwnn, | |
3991 | &pnode->nlp_nodename, | |
3992 | sizeof(struct lpfc_name)); | |
3993 | } | |
3994 | fast_path_evt->vport = vport; | |
3995 | fast_path_evt->work_evt.evt = | |
3996 | LPFC_EVT_FASTPATH_MGMT_EVT; | |
3997 | spin_lock_irqsave(&phba->hbalock, flags); | |
3998 | list_add_tail(&fast_path_evt->work_evt.evt_listp, | |
3999 | &phba->work_list); | |
4000 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
4001 | lpfc_worker_wake_up(phba); | |
dea3101e | 4002 | break; |
92d7f7b0 | 4003 | case IOSTAT_LOCAL_REJECT: |
1151e3ec | 4004 | case IOSTAT_REMOTE_STOP: |
ab56dc2e JS |
4005 | if (lpfc_cmd->result == IOERR_ELXSEC_KEY_UNWRAP_ERROR || |
4006 | lpfc_cmd->result == | |
4007 | IOERR_ELXSEC_KEY_UNWRAP_COMPARE_ERROR || | |
4008 | lpfc_cmd->result == IOERR_ELXSEC_CRYPTO_ERROR || | |
4009 | lpfc_cmd->result == | |
4010 | IOERR_ELXSEC_CRYPTO_COMPARE_ERROR) { | |
4011 | cmd->result = ScsiResult(DID_NO_CONNECT, 0); | |
4012 | break; | |
4013 | } | |
d7c255b2 | 4014 | if (lpfc_cmd->result == IOERR_INVALID_RPI || |
92d7f7b0 | 4015 | lpfc_cmd->result == IOERR_NO_RESOURCES || |
b92938b4 JS |
4016 | lpfc_cmd->result == IOERR_ABORT_REQUESTED || |
4017 | lpfc_cmd->result == IOERR_SLER_CMD_RCV_FAILURE) { | |
92d7f7b0 | 4018 | cmd->result = ScsiResult(DID_REQUEUE, 0); |
58da1ffb | 4019 | break; |
e2a0a9d6 | 4020 | } |
e2a0a9d6 JS |
4021 | if ((lpfc_cmd->result == IOERR_RX_DMA_FAILED || |
4022 | lpfc_cmd->result == IOERR_TX_DMA_FAILED) && | |
4023 | pIocbOut->iocb.unsli3.sli3_bg.bgstat) { | |
4024 | if (scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) { | |
4025 | /* | |
4026 | * This is a response for a BG enabled | |
4027 | * cmd. Parse BG error | |
4028 | */ | |
4029 | lpfc_parse_bg_err(phba, lpfc_cmd, | |
4030 | pIocbOut); | |
4031 | break; | |
4032 | } else { | |
4033 | lpfc_printf_vlog(vport, KERN_WARNING, | |
4034 | LOG_BG, | |
4035 | "9031 non-zero BGSTAT " | |
6a9c52cf | 4036 | "on unprotected cmd\n"); |
e2a0a9d6 JS |
4037 | } |
4038 | } | |
1151e3ec JS |
4039 | if ((lpfc_cmd->status == IOSTAT_REMOTE_STOP) |
4040 | && (phba->sli_rev == LPFC_SLI_REV4) | |
4041 | && (pnode && NLP_CHK_NODE_ACT(pnode))) { | |
4042 | /* This IO was aborted by the target, we don't | |
4043 | * know the rxid and because we did not send the | |
4044 | * ABTS we cannot generate and RRQ. | |
4045 | */ | |
4046 | lpfc_set_rrq_active(phba, pnode, | |
ee0f4fe1 JS |
4047 | lpfc_cmd->cur_iocbq.sli4_lxritag, |
4048 | 0, 0); | |
1151e3ec | 4049 | } |
e2a0a9d6 | 4050 | /* else: fall through */ |
dea3101e | 4051 | default: |
4052 | cmd->result = ScsiResult(DID_ERROR, 0); | |
4053 | break; | |
4054 | } | |
4055 | ||
58da1ffb | 4056 | if (!pnode || !NLP_CHK_NODE_ACT(pnode) |
19a7b4ae | 4057 | || (pnode->nlp_state != NLP_STE_MAPPED_NODE)) |
0f1f53a7 JS |
4058 | cmd->result = ScsiResult(DID_TRANSPORT_DISRUPTED, |
4059 | SAM_STAT_BUSY); | |
ab56dc2e | 4060 | } else |
dea3101e | 4061 | cmd->result = ScsiResult(DID_OK, 0); |
dea3101e | 4062 | |
4063 | if (cmd->result || lpfc_cmd->fcp_rsp->rspSnsLen) { | |
4064 | uint32_t *lp = (uint32_t *)cmd->sense_buffer; | |
4065 | ||
e8b62011 | 4066 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, |
9cb78c16 | 4067 | "0710 Iodone <%d/%llu> cmd %p, error " |
e8b62011 JS |
4068 | "x%x SNS x%x x%x Data: x%x x%x\n", |
4069 | cmd->device->id, cmd->device->lun, cmd, | |
4070 | cmd->result, *lp, *(lp + 3), cmd->retries, | |
4071 | scsi_get_resid(cmd)); | |
dea3101e | 4072 | } |
4073 | ||
ea2151b4 | 4074 | lpfc_update_stats(phba, lpfc_cmd); |
445cf4f4 | 4075 | result = cmd->result; |
977b5a0a JS |
4076 | if (vport->cfg_max_scsicmpl_time && |
4077 | time_after(jiffies, lpfc_cmd->start_time + | |
4078 | msecs_to_jiffies(vport->cfg_max_scsicmpl_time))) { | |
a257bf90 | 4079 | spin_lock_irqsave(shost->host_lock, flags); |
109f6ed0 JS |
4080 | if (pnode && NLP_CHK_NODE_ACT(pnode)) { |
4081 | if (pnode->cmd_qdepth > | |
4082 | atomic_read(&pnode->cmd_pending) && | |
4083 | (atomic_read(&pnode->cmd_pending) > | |
4084 | LPFC_MIN_TGT_QDEPTH) && | |
4085 | ((cmd->cmnd[0] == READ_10) || | |
4086 | (cmd->cmnd[0] == WRITE_10))) | |
4087 | pnode->cmd_qdepth = | |
4088 | atomic_read(&pnode->cmd_pending); | |
4089 | ||
4090 | pnode->last_change_time = jiffies; | |
4091 | } | |
a257bf90 | 4092 | spin_unlock_irqrestore(shost->host_lock, flags); |
109f6ed0 | 4093 | } else if (pnode && NLP_CHK_NODE_ACT(pnode)) { |
7dc517df | 4094 | if ((pnode->cmd_qdepth < vport->cfg_tgt_queue_depth) && |
977b5a0a | 4095 | time_after(jiffies, pnode->last_change_time + |
109f6ed0 | 4096 | msecs_to_jiffies(LPFC_TGTQ_INTERVAL))) { |
a257bf90 | 4097 | spin_lock_irqsave(shost->host_lock, flags); |
7dc517df JS |
4098 | depth = pnode->cmd_qdepth * LPFC_TGTQ_RAMPUP_PCENT |
4099 | / 100; | |
4100 | depth = depth ? depth : 1; | |
4101 | pnode->cmd_qdepth += depth; | |
4102 | if (pnode->cmd_qdepth > vport->cfg_tgt_queue_depth) | |
4103 | pnode->cmd_qdepth = vport->cfg_tgt_queue_depth; | |
109f6ed0 | 4104 | pnode->last_change_time = jiffies; |
a257bf90 | 4105 | spin_unlock_irqrestore(shost->host_lock, flags); |
109f6ed0 | 4106 | } |
977b5a0a JS |
4107 | } |
4108 | ||
1dcb58e5 | 4109 | lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd); |
a257bf90 JS |
4110 | |
4111 | /* The sdev is not guaranteed to be valid post scsi_done upcall. */ | |
4112 | queue_depth = cmd->device->queue_depth; | |
4113 | scsi_id = cmd->device->id; | |
0bd4ca25 JSEC |
4114 | cmd->scsi_done(cmd); |
4115 | ||
b808608b | 4116 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { |
876dd7d0 | 4117 | spin_lock_irqsave(&phba->hbalock, flags); |
92e3af66 | 4118 | lpfc_cmd->pCmd = NULL; |
876dd7d0 | 4119 | spin_unlock_irqrestore(&phba->hbalock, flags); |
92e3af66 | 4120 | |
fa61a54e JS |
4121 | /* |
4122 | * If there is a thread waiting for command completion | |
4123 | * wake up the thread. | |
4124 | */ | |
a257bf90 | 4125 | spin_lock_irqsave(shost->host_lock, flags); |
fa61a54e JS |
4126 | if (lpfc_cmd->waitq) |
4127 | wake_up(lpfc_cmd->waitq); | |
a257bf90 | 4128 | spin_unlock_irqrestore(shost->host_lock, flags); |
b808608b JW |
4129 | lpfc_release_scsi_buf(phba, lpfc_cmd); |
4130 | return; | |
4131 | } | |
4132 | ||
876dd7d0 | 4133 | spin_lock_irqsave(&phba->hbalock, flags); |
92e3af66 | 4134 | lpfc_cmd->pCmd = NULL; |
876dd7d0 | 4135 | spin_unlock_irqrestore(&phba->hbalock, flags); |
92e3af66 | 4136 | |
fa61a54e JS |
4137 | /* |
4138 | * If there is a thread waiting for command completion | |
4139 | * wake up the thread. | |
4140 | */ | |
a257bf90 | 4141 | spin_lock_irqsave(shost->host_lock, flags); |
fa61a54e JS |
4142 | if (lpfc_cmd->waitq) |
4143 | wake_up(lpfc_cmd->waitq); | |
a257bf90 | 4144 | spin_unlock_irqrestore(shost->host_lock, flags); |
fa61a54e | 4145 | |
0bd4ca25 | 4146 | lpfc_release_scsi_buf(phba, lpfc_cmd); |
dea3101e | 4147 | } |
4148 | ||
9bad7671 | 4149 | /** |
f1126688 | 4150 | * lpfc_scsi_prep_cmnd - Wrapper func for convert scsi cmnd to FCP info unit |
9bad7671 JS |
4151 | * @vport: The virtual port for which this call is being executed. |
4152 | * @lpfc_cmd: The scsi command which needs to send. | |
4153 | * @pnode: Pointer to lpfc_nodelist. | |
4154 | * | |
4155 | * This routine initializes fcp_cmnd and iocb data structure from scsi command | |
3772a991 | 4156 | * to transfer for device with SLI3 interface spec. |
9bad7671 | 4157 | **/ |
dea3101e | 4158 | static void |
f1126688 | 4159 | lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, |
2e0fef85 | 4160 | struct lpfc_nodelist *pnode) |
dea3101e | 4161 | { |
2e0fef85 | 4162 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4163 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; |
4164 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
4165 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; | |
4166 | struct lpfc_iocbq *piocbq = &(lpfc_cmd->cur_iocbq); | |
4167 | int datadir = scsi_cmnd->sc_data_direction; | |
027140ea JS |
4168 | uint8_t *ptr; |
4169 | bool sli4; | |
98bbf5f7 | 4170 | uint32_t fcpdl; |
dea3101e | 4171 | |
58da1ffb JS |
4172 | if (!pnode || !NLP_CHK_NODE_ACT(pnode)) |
4173 | return; | |
4174 | ||
dea3101e | 4175 | lpfc_cmd->fcp_rsp->rspSnsLen = 0; |
69859dc4 JSEC |
4176 | /* clear task management bits */ |
4177 | lpfc_cmd->fcp_cmnd->fcpCntl2 = 0; | |
dea3101e | 4178 | |
91886523 JSEC |
4179 | int_to_scsilun(lpfc_cmd->pCmd->device->lun, |
4180 | &lpfc_cmd->fcp_cmnd->fcp_lun); | |
dea3101e | 4181 | |
027140ea JS |
4182 | ptr = &fcp_cmnd->fcpCdb[0]; |
4183 | memcpy(ptr, scsi_cmnd->cmnd, scsi_cmnd->cmd_len); | |
4184 | if (scsi_cmnd->cmd_len < LPFC_FCP_CDB_LEN) { | |
4185 | ptr += scsi_cmnd->cmd_len; | |
4186 | memset(ptr, 0, (LPFC_FCP_CDB_LEN - scsi_cmnd->cmd_len)); | |
4187 | } | |
4188 | ||
50668633 | 4189 | fcp_cmnd->fcpCntl1 = SIMPLE_Q; |
dea3101e | 4190 | |
027140ea | 4191 | sli4 = (phba->sli_rev == LPFC_SLI_REV4); |
6acb3481 | 4192 | piocbq->iocb.un.fcpi.fcpi_XRdy = 0; |
027140ea | 4193 | |
dea3101e | 4194 | /* |
4195 | * There are three possibilities here - use scatter-gather segment, use | |
4196 | * the single mapping, or neither. Start the lpfc command prep by | |
4197 | * bumping the bpl beyond the fcp_cmnd and fcp_rsp regions to the first | |
4198 | * data bde entry. | |
4199 | */ | |
a0b4f78f | 4200 | if (scsi_sg_count(scsi_cmnd)) { |
dea3101e | 4201 | if (datadir == DMA_TO_DEVICE) { |
4202 | iocb_cmd->ulpCommand = CMD_FCP_IWRITE64_CR; | |
182ba753 | 4203 | iocb_cmd->ulpPU = PARM_READ_CHECK; |
3cb01c57 JS |
4204 | if (vport->cfg_first_burst_size && |
4205 | (pnode->nlp_flag & NLP_FIRSTBURST)) { | |
98bbf5f7 JS |
4206 | fcpdl = scsi_bufflen(scsi_cmnd); |
4207 | if (fcpdl < vport->cfg_first_burst_size) | |
4208 | piocbq->iocb.un.fcpi.fcpi_XRdy = fcpdl; | |
4209 | else | |
4210 | piocbq->iocb.un.fcpi.fcpi_XRdy = | |
4211 | vport->cfg_first_burst_size; | |
3cb01c57 | 4212 | } |
dea3101e | 4213 | fcp_cmnd->fcpCntl3 = WRITE_DATA; |
4214 | phba->fc4OutputRequests++; | |
4215 | } else { | |
4216 | iocb_cmd->ulpCommand = CMD_FCP_IREAD64_CR; | |
4217 | iocb_cmd->ulpPU = PARM_READ_CHECK; | |
dea3101e | 4218 | fcp_cmnd->fcpCntl3 = READ_DATA; |
4219 | phba->fc4InputRequests++; | |
4220 | } | |
4221 | } else { | |
4222 | iocb_cmd->ulpCommand = CMD_FCP_ICMND64_CR; | |
4223 | iocb_cmd->un.fcpi.fcpi_parm = 0; | |
4224 | iocb_cmd->ulpPU = 0; | |
4225 | fcp_cmnd->fcpCntl3 = 0; | |
4226 | phba->fc4ControlRequests++; | |
4227 | } | |
dea3101e | 4228 | /* |
4229 | * Finish initializing those IOCB fields that are independent | |
4230 | * of the scsi_cmnd request_buffer | |
4231 | */ | |
4232 | piocbq->iocb.ulpContext = pnode->nlp_rpi; | |
027140ea | 4233 | if (sli4) |
6d368e53 JS |
4234 | piocbq->iocb.ulpContext = |
4235 | phba->sli4_hba.rpi_ids[pnode->nlp_rpi]; | |
dea3101e | 4236 | if (pnode->nlp_fcp_info & NLP_FCP_2_DEVICE) |
4237 | piocbq->iocb.ulpFCP2Rcvy = 1; | |
09372820 JS |
4238 | else |
4239 | piocbq->iocb.ulpFCP2Rcvy = 0; | |
dea3101e | 4240 | |
4241 | piocbq->iocb.ulpClass = (pnode->nlp_fcp_info & 0x0f); | |
4242 | piocbq->context1 = lpfc_cmd; | |
4243 | piocbq->iocb_cmpl = lpfc_scsi_cmd_iocb_cmpl; | |
4244 | piocbq->iocb.ulpTimeout = lpfc_cmd->timeout; | |
2e0fef85 | 4245 | piocbq->vport = vport; |
dea3101e | 4246 | } |
4247 | ||
da0436e9 | 4248 | /** |
6d368e53 | 4249 | * lpfc_scsi_prep_task_mgmt_cmd - Convert SLI3 scsi TM cmd to FCP info unit |
9bad7671 JS |
4250 | * @vport: The virtual port for which this call is being executed. |
4251 | * @lpfc_cmd: Pointer to lpfc_scsi_buf data structure. | |
4252 | * @lun: Logical unit number. | |
4253 | * @task_mgmt_cmd: SCSI task management command. | |
4254 | * | |
3772a991 JS |
4255 | * This routine creates FCP information unit corresponding to @task_mgmt_cmd |
4256 | * for device with SLI-3 interface spec. | |
9bad7671 JS |
4257 | * |
4258 | * Return codes: | |
4259 | * 0 - Error | |
4260 | * 1 - Success | |
4261 | **/ | |
dea3101e | 4262 | static int |
f1126688 | 4263 | lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_vport *vport, |
dea3101e | 4264 | struct lpfc_scsi_buf *lpfc_cmd, |
9cb78c16 | 4265 | uint64_t lun, |
dea3101e | 4266 | uint8_t task_mgmt_cmd) |
4267 | { | |
dea3101e | 4268 | struct lpfc_iocbq *piocbq; |
4269 | IOCB_t *piocb; | |
4270 | struct fcp_cmnd *fcp_cmnd; | |
0b18ac42 | 4271 | struct lpfc_rport_data *rdata = lpfc_cmd->rdata; |
dea3101e | 4272 | struct lpfc_nodelist *ndlp = rdata->pnode; |
4273 | ||
58da1ffb JS |
4274 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || |
4275 | ndlp->nlp_state != NLP_STE_MAPPED_NODE) | |
dea3101e | 4276 | return 0; |
dea3101e | 4277 | |
dea3101e | 4278 | piocbq = &(lpfc_cmd->cur_iocbq); |
2e0fef85 JS |
4279 | piocbq->vport = vport; |
4280 | ||
dea3101e | 4281 | piocb = &piocbq->iocb; |
4282 | ||
4283 | fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
34b02dcd JS |
4284 | /* Clear out any old data in the FCP command area */ |
4285 | memset(fcp_cmnd, 0, sizeof(struct fcp_cmnd)); | |
4286 | int_to_scsilun(lun, &fcp_cmnd->fcp_lun); | |
dea3101e | 4287 | fcp_cmnd->fcpCntl2 = task_mgmt_cmd; |
e2a0a9d6 JS |
4288 | if (vport->phba->sli_rev == 3 && |
4289 | !(vport->phba->sli3_options & LPFC_SLI3_BG_ENABLED)) | |
34b02dcd | 4290 | lpfc_fcpcmd_to_iocb(piocb->unsli3.fcp_ext.icd, fcp_cmnd); |
dea3101e | 4291 | piocb->ulpCommand = CMD_FCP_ICMND64_CR; |
dea3101e | 4292 | piocb->ulpContext = ndlp->nlp_rpi; |
6d368e53 JS |
4293 | if (vport->phba->sli_rev == LPFC_SLI_REV4) { |
4294 | piocb->ulpContext = | |
4295 | vport->phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; | |
4296 | } | |
53151bbb | 4297 | piocb->ulpFCP2Rcvy = (ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) ? 1 : 0; |
dea3101e | 4298 | piocb->ulpClass = (ndlp->nlp_fcp_info & 0x0f); |
f9226c20 JS |
4299 | piocb->ulpPU = 0; |
4300 | piocb->un.fcpi.fcpi_parm = 0; | |
dea3101e | 4301 | |
4302 | /* ulpTimeout is only one byte */ | |
4303 | if (lpfc_cmd->timeout > 0xff) { | |
4304 | /* | |
4305 | * Do not timeout the command at the firmware level. | |
4306 | * The driver will provide the timeout mechanism. | |
4307 | */ | |
4308 | piocb->ulpTimeout = 0; | |
f1126688 | 4309 | } else |
dea3101e | 4310 | piocb->ulpTimeout = lpfc_cmd->timeout; |
da0436e9 | 4311 | |
f1126688 JS |
4312 | if (vport->phba->sli_rev == LPFC_SLI_REV4) |
4313 | lpfc_sli4_set_rsp_sgl_last(vport->phba, lpfc_cmd); | |
3772a991 | 4314 | |
f1126688 | 4315 | return 1; |
3772a991 JS |
4316 | } |
4317 | ||
4318 | /** | |
25985edc | 4319 | * lpfc_scsi_api_table_setup - Set up scsi api function jump table |
3772a991 JS |
4320 | * @phba: The hba struct for which this call is being executed. |
4321 | * @dev_grp: The HBA PCI-Device group number. | |
4322 | * | |
4323 | * This routine sets up the SCSI interface API function jump table in @phba | |
4324 | * struct. | |
4325 | * Returns: 0 - success, -ENODEV - failure. | |
4326 | **/ | |
4327 | int | |
4328 | lpfc_scsi_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) | |
4329 | { | |
4330 | ||
f1126688 JS |
4331 | phba->lpfc_scsi_unprep_dma_buf = lpfc_scsi_unprep_dma_buf; |
4332 | phba->lpfc_scsi_prep_cmnd = lpfc_scsi_prep_cmnd; | |
f1126688 | 4333 | |
3772a991 JS |
4334 | switch (dev_grp) { |
4335 | case LPFC_PCI_DEV_LP: | |
4336 | phba->lpfc_new_scsi_buf = lpfc_new_scsi_buf_s3; | |
4337 | phba->lpfc_scsi_prep_dma_buf = lpfc_scsi_prep_dma_buf_s3; | |
acd6859b | 4338 | phba->lpfc_bg_scsi_prep_dma_buf = lpfc_bg_scsi_prep_dma_buf_s3; |
3772a991 | 4339 | phba->lpfc_release_scsi_buf = lpfc_release_scsi_buf_s3; |
19ca7609 | 4340 | phba->lpfc_get_scsi_buf = lpfc_get_scsi_buf_s3; |
3772a991 | 4341 | break; |
da0436e9 JS |
4342 | case LPFC_PCI_DEV_OC: |
4343 | phba->lpfc_new_scsi_buf = lpfc_new_scsi_buf_s4; | |
4344 | phba->lpfc_scsi_prep_dma_buf = lpfc_scsi_prep_dma_buf_s4; | |
acd6859b | 4345 | phba->lpfc_bg_scsi_prep_dma_buf = lpfc_bg_scsi_prep_dma_buf_s4; |
da0436e9 | 4346 | phba->lpfc_release_scsi_buf = lpfc_release_scsi_buf_s4; |
19ca7609 | 4347 | phba->lpfc_get_scsi_buf = lpfc_get_scsi_buf_s4; |
da0436e9 | 4348 | break; |
3772a991 JS |
4349 | default: |
4350 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
4351 | "1418 Invalid HBA PCI-device group: 0x%x\n", | |
4352 | dev_grp); | |
4353 | return -ENODEV; | |
4354 | break; | |
4355 | } | |
3772a991 | 4356 | phba->lpfc_rampdown_queue_depth = lpfc_rampdown_queue_depth; |
84d1b006 | 4357 | phba->lpfc_scsi_cmd_iocb_cmpl = lpfc_scsi_cmd_iocb_cmpl; |
3772a991 JS |
4358 | return 0; |
4359 | } | |
4360 | ||
9bad7671 | 4361 | /** |
3621a710 | 4362 | * lpfc_taskmgmt_def_cmpl - IOCB completion routine for task management command |
9bad7671 JS |
4363 | * @phba: The Hba for which this call is being executed. |
4364 | * @cmdiocbq: Pointer to lpfc_iocbq data structure. | |
4365 | * @rspiocbq: Pointer to lpfc_iocbq data structure. | |
4366 | * | |
4367 | * This routine is IOCB completion routine for device reset and target reset | |
4368 | * routine. This routine release scsi buffer associated with lpfc_cmd. | |
4369 | **/ | |
7054a606 JS |
4370 | static void |
4371 | lpfc_tskmgmt_def_cmpl(struct lpfc_hba *phba, | |
4372 | struct lpfc_iocbq *cmdiocbq, | |
4373 | struct lpfc_iocbq *rspiocbq) | |
4374 | { | |
4375 | struct lpfc_scsi_buf *lpfc_cmd = | |
4376 | (struct lpfc_scsi_buf *) cmdiocbq->context1; | |
4377 | if (lpfc_cmd) | |
4378 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
4379 | return; | |
4380 | } | |
4381 | ||
9bad7671 | 4382 | /** |
3621a710 | 4383 | * lpfc_info - Info entry point of scsi_host_template data structure |
9bad7671 JS |
4384 | * @host: The scsi host for which this call is being executed. |
4385 | * | |
4386 | * This routine provides module information about hba. | |
4387 | * | |
4388 | * Reutrn code: | |
4389 | * Pointer to char - Success. | |
4390 | **/ | |
dea3101e | 4391 | const char * |
4392 | lpfc_info(struct Scsi_Host *host) | |
4393 | { | |
2e0fef85 JS |
4394 | struct lpfc_vport *vport = (struct lpfc_vport *) host->hostdata; |
4395 | struct lpfc_hba *phba = vport->phba; | |
8b68cd52 | 4396 | int len, link_speed = 0; |
dea3101e | 4397 | static char lpfcinfobuf[384]; |
4398 | ||
4399 | memset(lpfcinfobuf,0,384); | |
4400 | if (phba && phba->pcidev){ | |
4401 | strncpy(lpfcinfobuf, phba->ModelDesc, 256); | |
4402 | len = strlen(lpfcinfobuf); | |
4403 | snprintf(lpfcinfobuf + len, | |
4404 | 384-len, | |
4405 | " on PCI bus %02x device %02x irq %d", | |
4406 | phba->pcidev->bus->number, | |
4407 | phba->pcidev->devfn, | |
4408 | phba->pcidev->irq); | |
4409 | len = strlen(lpfcinfobuf); | |
4410 | if (phba->Port[0]) { | |
4411 | snprintf(lpfcinfobuf + len, | |
4412 | 384-len, | |
4413 | " port %s", | |
4414 | phba->Port); | |
4415 | } | |
65467b6b | 4416 | len = strlen(lpfcinfobuf); |
8b68cd52 JS |
4417 | if (phba->sli_rev <= LPFC_SLI_REV3) { |
4418 | link_speed = lpfc_sli_port_speed_get(phba); | |
4419 | } else { | |
4420 | if (phba->sli4_hba.link_state.logical_speed) | |
4421 | link_speed = | |
4422 | phba->sli4_hba.link_state.logical_speed; | |
4423 | else | |
4424 | link_speed = phba->sli4_hba.link_state.speed; | |
65467b6b | 4425 | } |
8b68cd52 JS |
4426 | if (link_speed != 0) |
4427 | snprintf(lpfcinfobuf + len, 384-len, | |
4428 | " Logical Link Speed: %d Mbps", link_speed); | |
dea3101e | 4429 | } |
4430 | return lpfcinfobuf; | |
4431 | } | |
4432 | ||
9bad7671 | 4433 | /** |
3621a710 | 4434 | * lpfc_poll_rearm_time - Routine to modify fcp_poll timer of hba |
9bad7671 JS |
4435 | * @phba: The Hba for which this call is being executed. |
4436 | * | |
4437 | * This routine modifies fcp_poll_timer field of @phba by cfg_poll_tmo. | |
4438 | * The default value of cfg_poll_tmo is 10 milliseconds. | |
4439 | **/ | |
875fbdfe JSEC |
4440 | static __inline__ void lpfc_poll_rearm_timer(struct lpfc_hba * phba) |
4441 | { | |
4442 | unsigned long poll_tmo_expires = | |
4443 | (jiffies + msecs_to_jiffies(phba->cfg_poll_tmo)); | |
4444 | ||
0e9bb8d7 | 4445 | if (!list_empty(&phba->sli.ring[LPFC_FCP_RING].txcmplq)) |
875fbdfe JSEC |
4446 | mod_timer(&phba->fcp_poll_timer, |
4447 | poll_tmo_expires); | |
4448 | } | |
4449 | ||
9bad7671 | 4450 | /** |
3621a710 | 4451 | * lpfc_poll_start_timer - Routine to start fcp_poll_timer of HBA |
9bad7671 JS |
4452 | * @phba: The Hba for which this call is being executed. |
4453 | * | |
4454 | * This routine starts the fcp_poll_timer of @phba. | |
4455 | **/ | |
875fbdfe JSEC |
4456 | void lpfc_poll_start_timer(struct lpfc_hba * phba) |
4457 | { | |
4458 | lpfc_poll_rearm_timer(phba); | |
4459 | } | |
4460 | ||
9bad7671 | 4461 | /** |
3621a710 | 4462 | * lpfc_poll_timeout - Restart polling timer |
9bad7671 JS |
4463 | * @ptr: Map to lpfc_hba data structure pointer. |
4464 | * | |
4465 | * This routine restarts fcp_poll timer, when FCP ring polling is enable | |
4466 | * and FCP Ring interrupt is disable. | |
4467 | **/ | |
4468 | ||
875fbdfe JSEC |
4469 | void lpfc_poll_timeout(unsigned long ptr) |
4470 | { | |
2e0fef85 | 4471 | struct lpfc_hba *phba = (struct lpfc_hba *) ptr; |
875fbdfe JSEC |
4472 | |
4473 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { | |
45ed1190 JS |
4474 | lpfc_sli_handle_fast_ring_event(phba, |
4475 | &phba->sli.ring[LPFC_FCP_RING], HA_R0RE_REQ); | |
4476 | ||
875fbdfe JSEC |
4477 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
4478 | lpfc_poll_rearm_timer(phba); | |
4479 | } | |
875fbdfe JSEC |
4480 | } |
4481 | ||
9bad7671 | 4482 | /** |
3621a710 | 4483 | * lpfc_queuecommand - scsi_host_template queuecommand entry point |
9bad7671 JS |
4484 | * @cmnd: Pointer to scsi_cmnd data structure. |
4485 | * @done: Pointer to done routine. | |
4486 | * | |
4487 | * Driver registers this routine to scsi midlayer to submit a @cmd to process. | |
4488 | * This routine prepares an IOCB from scsi command and provides to firmware. | |
4489 | * The @done callback is invoked after driver finished processing the command. | |
4490 | * | |
4491 | * Return value : | |
4492 | * 0 - Success | |
4493 | * SCSI_MLQUEUE_HOST_BUSY - Block all devices served by this host temporarily. | |
4494 | **/ | |
dea3101e | 4495 | static int |
b9a7c631 | 4496 | lpfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) |
dea3101e | 4497 | { |
2e0fef85 JS |
4498 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
4499 | struct lpfc_hba *phba = vport->phba; | |
1ba981fd | 4500 | struct lpfc_rport_data *rdata; |
1c6f4ef5 | 4501 | struct lpfc_nodelist *ndlp; |
0bd4ca25 | 4502 | struct lpfc_scsi_buf *lpfc_cmd; |
19a7b4ae | 4503 | struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); |
19a7b4ae | 4504 | int err; |
dea3101e | 4505 | |
1ba981fd | 4506 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
19a7b4ae JSEC |
4507 | err = fc_remote_port_chkready(rport); |
4508 | if (err) { | |
4509 | cmnd->result = err; | |
dea3101e | 4510 | goto out_fail_command; |
4511 | } | |
1c6f4ef5 | 4512 | ndlp = rdata->pnode; |
dea3101e | 4513 | |
bf08611b | 4514 | if ((scsi_get_prot_op(cmnd) != SCSI_PROT_NORMAL) && |
acd6859b | 4515 | (!(phba->sli3_options & LPFC_SLI3_BG_ENABLED))) { |
e2a0a9d6 | 4516 | |
6a9c52cf JS |
4517 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
4518 | "9058 BLKGRD: ERROR: rcvd protected cmd:%02x" | |
4519 | " op:%02x str=%s without registering for" | |
4520 | " BlockGuard - Rejecting command\n", | |
e2a0a9d6 JS |
4521 | cmnd->cmnd[0], scsi_get_prot_op(cmnd), |
4522 | dif_op_str[scsi_get_prot_op(cmnd)]); | |
4523 | goto out_fail_command; | |
4524 | } | |
4525 | ||
dea3101e | 4526 | /* |
19a7b4ae JSEC |
4527 | * Catch race where our node has transitioned, but the |
4528 | * transport is still transitioning. | |
dea3101e | 4529 | */ |
6b415f5d JS |
4530 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) |
4531 | goto out_tgt_busy; | |
7dc517df | 4532 | if (atomic_read(&ndlp->cmd_pending) >= ndlp->cmd_qdepth) |
3496343d | 4533 | goto out_tgt_busy; |
a93ce024 | 4534 | |
19ca7609 | 4535 | lpfc_cmd = lpfc_get_scsi_buf(phba, ndlp); |
dea3101e | 4536 | if (lpfc_cmd == NULL) { |
eaf15d5b | 4537 | lpfc_rampdown_queue_depth(phba); |
92d7f7b0 | 4538 | |
e8b62011 JS |
4539 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, |
4540 | "0707 driver's buffer pool is empty, " | |
4541 | "IO busied\n"); | |
dea3101e | 4542 | goto out_host_busy; |
4543 | } | |
4544 | ||
4545 | /* | |
4546 | * Store the midlayer's command structure for the completion phase | |
4547 | * and complete the command initialization. | |
4548 | */ | |
4549 | lpfc_cmd->pCmd = cmnd; | |
4550 | lpfc_cmd->rdata = rdata; | |
4551 | lpfc_cmd->timeout = 0; | |
977b5a0a | 4552 | lpfc_cmd->start_time = jiffies; |
dea3101e | 4553 | cmnd->host_scribble = (unsigned char *)lpfc_cmd; |
dea3101e | 4554 | |
e2a0a9d6 | 4555 | if (scsi_get_prot_op(cmnd) != SCSI_PROT_NORMAL) { |
6a9c52cf | 4556 | if (vport->phba->cfg_enable_bg) { |
737d4248 JS |
4557 | lpfc_printf_vlog(vport, |
4558 | KERN_INFO, LOG_SCSI_CMD, | |
2613470a JS |
4559 | "9033 BLKGRD: rcvd %s cmd:x%x " |
4560 | "sector x%llx cnt %u pt %x\n", | |
4561 | dif_op_str[scsi_get_prot_op(cmnd)], | |
4562 | cmnd->cmnd[0], | |
4563 | (unsigned long long)scsi_get_lba(cmnd), | |
4564 | blk_rq_sectors(cmnd->request), | |
4565 | (cmnd->cmnd[1]>>5)); | |
6a9c52cf | 4566 | } |
e2a0a9d6 JS |
4567 | err = lpfc_bg_scsi_prep_dma_buf(phba, lpfc_cmd); |
4568 | } else { | |
6a9c52cf | 4569 | if (vport->phba->cfg_enable_bg) { |
737d4248 JS |
4570 | lpfc_printf_vlog(vport, |
4571 | KERN_INFO, LOG_SCSI_CMD, | |
2613470a JS |
4572 | "9038 BLKGRD: rcvd PROT_NORMAL cmd: " |
4573 | "x%x sector x%llx cnt %u pt %x\n", | |
4574 | cmnd->cmnd[0], | |
4575 | (unsigned long long)scsi_get_lba(cmnd), | |
9a6b09c0 | 4576 | blk_rq_sectors(cmnd->request), |
2613470a | 4577 | (cmnd->cmnd[1]>>5)); |
6a9c52cf | 4578 | } |
e2a0a9d6 JS |
4579 | err = lpfc_scsi_prep_dma_buf(phba, lpfc_cmd); |
4580 | } | |
4581 | ||
dea3101e | 4582 | if (err) |
4583 | goto out_host_busy_free_buf; | |
4584 | ||
2e0fef85 | 4585 | lpfc_scsi_prep_cmnd(vport, lpfc_cmd, ndlp); |
dea3101e | 4586 | |
977b5a0a | 4587 | atomic_inc(&ndlp->cmd_pending); |
3772a991 | 4588 | err = lpfc_sli_issue_iocb(phba, LPFC_FCP_RING, |
92d7f7b0 | 4589 | &lpfc_cmd->cur_iocbq, SLI_IOCB_RET_IOCB); |
eaf15d5b JS |
4590 | if (err) { |
4591 | atomic_dec(&ndlp->cmd_pending); | |
76f96b6d JS |
4592 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, |
4593 | "3376 FCP could not issue IOCB err %x" | |
9cb78c16 | 4594 | "FCP cmd x%x <%d/%llu> " |
76f96b6d JS |
4595 | "sid: x%x did: x%x oxid: x%x " |
4596 | "Data: x%x x%x x%x x%x\n", | |
4597 | err, cmnd->cmnd[0], | |
4598 | cmnd->device ? cmnd->device->id : 0xffff, | |
9cb78c16 | 4599 | cmnd->device ? cmnd->device->lun : (u64) -1, |
76f96b6d JS |
4600 | vport->fc_myDID, ndlp->nlp_DID, |
4601 | phba->sli_rev == LPFC_SLI_REV4 ? | |
4602 | lpfc_cmd->cur_iocbq.sli4_xritag : 0xffff, | |
4603 | lpfc_cmd->cur_iocbq.iocb.ulpContext, | |
4604 | lpfc_cmd->cur_iocbq.iocb.ulpIoTag, | |
4605 | lpfc_cmd->cur_iocbq.iocb.ulpTimeout, | |
4606 | (uint32_t) | |
4607 | (cmnd->request->timeout / 1000)); | |
4608 | ||
4609 | ||
dea3101e | 4610 | goto out_host_busy_free_buf; |
eaf15d5b | 4611 | } |
875fbdfe | 4612 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { |
45ed1190 JS |
4613 | lpfc_sli_handle_fast_ring_event(phba, |
4614 | &phba->sli.ring[LPFC_FCP_RING], HA_R0RE_REQ); | |
4615 | ||
875fbdfe JSEC |
4616 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
4617 | lpfc_poll_rearm_timer(phba); | |
4618 | } | |
4619 | ||
dea3101e | 4620 | return 0; |
4621 | ||
4622 | out_host_busy_free_buf: | |
bcf4dbfa | 4623 | lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd); |
0bd4ca25 | 4624 | lpfc_release_scsi_buf(phba, lpfc_cmd); |
dea3101e | 4625 | out_host_busy: |
4626 | return SCSI_MLQUEUE_HOST_BUSY; | |
4627 | ||
3496343d MC |
4628 | out_tgt_busy: |
4629 | return SCSI_MLQUEUE_TARGET_BUSY; | |
4630 | ||
dea3101e | 4631 | out_fail_command: |
b9a7c631 | 4632 | cmnd->scsi_done(cmnd); |
dea3101e | 4633 | return 0; |
4634 | } | |
4635 | ||
f281233d | 4636 | |
9bad7671 | 4637 | /** |
3621a710 | 4638 | * lpfc_abort_handler - scsi_host_template eh_abort_handler entry point |
9bad7671 JS |
4639 | * @cmnd: Pointer to scsi_cmnd data structure. |
4640 | * | |
4641 | * This routine aborts @cmnd pending in base driver. | |
4642 | * | |
4643 | * Return code : | |
4644 | * 0x2003 - Error | |
4645 | * 0x2002 - Success | |
4646 | **/ | |
dea3101e | 4647 | static int |
63c59c3b | 4648 | lpfc_abort_handler(struct scsi_cmnd *cmnd) |
dea3101e | 4649 | { |
2e0fef85 JS |
4650 | struct Scsi_Host *shost = cmnd->device->host; |
4651 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
4652 | struct lpfc_hba *phba = vport->phba; | |
0bd4ca25 JSEC |
4653 | struct lpfc_iocbq *iocb; |
4654 | struct lpfc_iocbq *abtsiocb; | |
dea3101e | 4655 | struct lpfc_scsi_buf *lpfc_cmd; |
dea3101e | 4656 | IOCB_t *cmd, *icmd; |
3a70730a | 4657 | int ret = SUCCESS, status = 0; |
98912dda JS |
4658 | struct lpfc_sli_ring *pring_s4; |
4659 | int ring_number, ret_val; | |
4660 | unsigned long flags, iflags; | |
fa61a54e | 4661 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(waitq); |
dea3101e | 4662 | |
3a70730a | 4663 | status = fc_block_scsi_eh(cmnd); |
908e18e4 | 4664 | if (status != 0 && status != SUCCESS) |
3a70730a | 4665 | return status; |
4f2e66c6 | 4666 | |
876dd7d0 | 4667 | spin_lock_irqsave(&phba->hbalock, flags); |
4f2e66c6 JS |
4668 | /* driver queued commands are in process of being flushed */ |
4669 | if (phba->hba_flag & HBA_FCP_IOQ_FLUSH) { | |
876dd7d0 | 4670 | spin_unlock_irqrestore(&phba->hbalock, flags); |
4f2e66c6 JS |
4671 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
4672 | "3168 SCSI Layer abort requested I/O has been " | |
4673 | "flushed by LLD.\n"); | |
4674 | return FAILED; | |
4675 | } | |
4676 | ||
0bd4ca25 | 4677 | lpfc_cmd = (struct lpfc_scsi_buf *)cmnd->host_scribble; |
92e3af66 | 4678 | if (!lpfc_cmd || !lpfc_cmd->pCmd) { |
876dd7d0 | 4679 | spin_unlock_irqrestore(&phba->hbalock, flags); |
eee8877e JS |
4680 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
4681 | "2873 SCSI Layer I/O Abort Request IO CMPL Status " | |
9cb78c16 | 4682 | "x%x ID %d LUN %llu\n", |
3a70730a | 4683 | SUCCESS, cmnd->device->id, cmnd->device->lun); |
eee8877e JS |
4684 | return SUCCESS; |
4685 | } | |
dea3101e | 4686 | |
4f2e66c6 JS |
4687 | iocb = &lpfc_cmd->cur_iocbq; |
4688 | /* the command is in process of being cancelled */ | |
4689 | if (!(iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ)) { | |
876dd7d0 | 4690 | spin_unlock_irqrestore(&phba->hbalock, flags); |
4f2e66c6 JS |
4691 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
4692 | "3169 SCSI Layer abort requested I/O has been " | |
4693 | "cancelled by LLD.\n"); | |
4694 | return FAILED; | |
4695 | } | |
0bd4ca25 JSEC |
4696 | /* |
4697 | * If pCmd field of the corresponding lpfc_scsi_buf structure | |
4698 | * points to a different SCSI command, then the driver has | |
4699 | * already completed this command, but the midlayer did not | |
4f2e66c6 | 4700 | * see the completion before the eh fired. Just return SUCCESS. |
0bd4ca25 | 4701 | */ |
4f2e66c6 JS |
4702 | if (lpfc_cmd->pCmd != cmnd) { |
4703 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, | |
4704 | "3170 SCSI Layer abort requested I/O has been " | |
4705 | "completed by LLD.\n"); | |
4706 | goto out_unlock; | |
4707 | } | |
dea3101e | 4708 | |
0bd4ca25 | 4709 | BUG_ON(iocb->context1 != lpfc_cmd); |
dea3101e | 4710 | |
ee62021a JS |
4711 | /* abort issued in recovery is still in progress */ |
4712 | if (iocb->iocb_flag & LPFC_DRIVER_ABORTED) { | |
4713 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, | |
4714 | "3389 SCSI Layer I/O Abort Request is pending\n"); | |
4715 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
4716 | goto wait_for_cmpl; | |
4717 | } | |
4718 | ||
4f2e66c6 | 4719 | abtsiocb = __lpfc_sli_get_iocbq(phba); |
0bd4ca25 JSEC |
4720 | if (abtsiocb == NULL) { |
4721 | ret = FAILED; | |
4f2e66c6 | 4722 | goto out_unlock; |
dea3101e | 4723 | } |
4724 | ||
afbd8d88 JS |
4725 | /* Indicate the IO is being aborted by the driver. */ |
4726 | iocb->iocb_flag |= LPFC_DRIVER_ABORTED; | |
4727 | ||
dea3101e | 4728 | /* |
0bd4ca25 JSEC |
4729 | * The scsi command can not be in txq and it is in flight because the |
4730 | * pCmd is still pointig at the SCSI command we have to abort. There | |
4731 | * is no need to search the txcmplq. Just send an abort to the FW. | |
dea3101e | 4732 | */ |
dea3101e | 4733 | |
0bd4ca25 JSEC |
4734 | cmd = &iocb->iocb; |
4735 | icmd = &abtsiocb->iocb; | |
4736 | icmd->un.acxri.abortType = ABORT_TYPE_ABTS; | |
4737 | icmd->un.acxri.abortContextTag = cmd->ulpContext; | |
3772a991 JS |
4738 | if (phba->sli_rev == LPFC_SLI_REV4) |
4739 | icmd->un.acxri.abortIoTag = iocb->sli4_xritag; | |
4740 | else | |
4741 | icmd->un.acxri.abortIoTag = cmd->ulpIoTag; | |
dea3101e | 4742 | |
0bd4ca25 JSEC |
4743 | icmd->ulpLe = 1; |
4744 | icmd->ulpClass = cmd->ulpClass; | |
5ffc266e JS |
4745 | |
4746 | /* ABTS WQE must go to the same WQ as the WQE to be aborted */ | |
4747 | abtsiocb->fcp_wqidx = iocb->fcp_wqidx; | |
341af102 | 4748 | abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX; |
9bd2bff5 JS |
4749 | if (iocb->iocb_flag & LPFC_IO_FOF) |
4750 | abtsiocb->iocb_flag |= LPFC_IO_FOF; | |
5ffc266e | 4751 | |
2e0fef85 | 4752 | if (lpfc_is_link_up(phba)) |
0bd4ca25 JSEC |
4753 | icmd->ulpCommand = CMD_ABORT_XRI_CN; |
4754 | else | |
4755 | icmd->ulpCommand = CMD_CLOSE_XRI_CN; | |
dea3101e | 4756 | |
0bd4ca25 | 4757 | abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl; |
2e0fef85 | 4758 | abtsiocb->vport = vport; |
98912dda JS |
4759 | if (phba->sli_rev == LPFC_SLI_REV4) { |
4760 | ring_number = MAX_SLI3_CONFIGURED_RINGS + iocb->fcp_wqidx; | |
4761 | pring_s4 = &phba->sli.ring[ring_number]; | |
4762 | /* Note: both hbalock and ring_lock must be set here */ | |
4763 | spin_lock_irqsave(&pring_s4->ring_lock, iflags); | |
4764 | ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno, | |
4765 | abtsiocb, 0); | |
4766 | spin_unlock_irqrestore(&pring_s4->ring_lock, iflags); | |
4767 | } else { | |
4768 | ret_val = __lpfc_sli_issue_iocb(phba, LPFC_FCP_RING, | |
4769 | abtsiocb, 0); | |
4770 | } | |
4f2e66c6 | 4771 | /* no longer need the lock after this point */ |
876dd7d0 | 4772 | spin_unlock_irqrestore(&phba->hbalock, flags); |
4f2e66c6 | 4773 | |
98912dda JS |
4774 | |
4775 | if (ret_val == IOCB_ERROR) { | |
0bd4ca25 JSEC |
4776 | lpfc_sli_release_iocbq(phba, abtsiocb); |
4777 | ret = FAILED; | |
4778 | goto out; | |
4779 | } | |
dea3101e | 4780 | |
875fbdfe | 4781 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
45ed1190 JS |
4782 | lpfc_sli_handle_fast_ring_event(phba, |
4783 | &phba->sli.ring[LPFC_FCP_RING], HA_R0RE_REQ); | |
875fbdfe | 4784 | |
ee62021a | 4785 | wait_for_cmpl: |
fa61a54e | 4786 | lpfc_cmd->waitq = &waitq; |
0bd4ca25 | 4787 | /* Wait for abort to complete */ |
fa61a54e JS |
4788 | wait_event_timeout(waitq, |
4789 | (lpfc_cmd->pCmd != cmnd), | |
256ec0d0 | 4790 | msecs_to_jiffies(2*vport->cfg_devloss_tmo*1000)); |
ee62021a JS |
4791 | |
4792 | spin_lock_irqsave(shost->host_lock, flags); | |
fa61a54e | 4793 | lpfc_cmd->waitq = NULL; |
ee62021a | 4794 | spin_unlock_irqrestore(shost->host_lock, flags); |
dea3101e | 4795 | |
0bd4ca25 JSEC |
4796 | if (lpfc_cmd->pCmd == cmnd) { |
4797 | ret = FAILED; | |
e8b62011 JS |
4798 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
4799 | "0748 abort handler timed out waiting " | |
247ca945 | 4800 | "for abortng I/O (xri:x%x) to complete: " |
9cb78c16 | 4801 | "ret %#x, ID %d, LUN %llu\n", |
247ca945 JS |
4802 | iocb->sli4_xritag, ret, |
4803 | cmnd->device->id, cmnd->device->lun); | |
dea3101e | 4804 | } |
4f2e66c6 | 4805 | goto out; |
dea3101e | 4806 | |
4f2e66c6 | 4807 | out_unlock: |
876dd7d0 | 4808 | spin_unlock_irqrestore(&phba->hbalock, flags); |
4f2e66c6 | 4809 | out: |
e8b62011 JS |
4810 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
4811 | "0749 SCSI Layer I/O Abort Request Status x%x ID %d " | |
9cb78c16 | 4812 | "LUN %llu\n", ret, cmnd->device->id, |
5cd049a5 | 4813 | cmnd->device->lun); |
63c59c3b | 4814 | return ret; |
8fa728a2 JG |
4815 | } |
4816 | ||
bbb9d180 JS |
4817 | static char * |
4818 | lpfc_taskmgmt_name(uint8_t task_mgmt_cmd) | |
4819 | { | |
4820 | switch (task_mgmt_cmd) { | |
4821 | case FCP_ABORT_TASK_SET: | |
4822 | return "ABORT_TASK_SET"; | |
4823 | case FCP_CLEAR_TASK_SET: | |
4824 | return "FCP_CLEAR_TASK_SET"; | |
4825 | case FCP_BUS_RESET: | |
4826 | return "FCP_BUS_RESET"; | |
4827 | case FCP_LUN_RESET: | |
4828 | return "FCP_LUN_RESET"; | |
4829 | case FCP_TARGET_RESET: | |
4830 | return "FCP_TARGET_RESET"; | |
4831 | case FCP_CLEAR_ACA: | |
4832 | return "FCP_CLEAR_ACA"; | |
4833 | case FCP_TERMINATE_TASK: | |
4834 | return "FCP_TERMINATE_TASK"; | |
4835 | default: | |
4836 | return "unknown"; | |
4837 | } | |
4838 | } | |
4839 | ||
53151bbb JS |
4840 | |
4841 | /** | |
4842 | * lpfc_check_fcp_rsp - check the returned fcp_rsp to see if task failed | |
4843 | * @vport: The virtual port for which this call is being executed. | |
4844 | * @lpfc_cmd: Pointer to lpfc_scsi_buf data structure. | |
4845 | * | |
4846 | * This routine checks the FCP RSP INFO to see if the tsk mgmt command succeded | |
4847 | * | |
4848 | * Return code : | |
4849 | * 0x2003 - Error | |
4850 | * 0x2002 - Success | |
4851 | **/ | |
4852 | static int | |
4853 | lpfc_check_fcp_rsp(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd) | |
4854 | { | |
4855 | struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp; | |
4856 | uint32_t rsp_info; | |
4857 | uint32_t rsp_len; | |
4858 | uint8_t rsp_info_code; | |
4859 | int ret = FAILED; | |
4860 | ||
4861 | ||
4862 | if (fcprsp == NULL) | |
4863 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
4864 | "0703 fcp_rsp is missing\n"); | |
4865 | else { | |
4866 | rsp_info = fcprsp->rspStatus2; | |
4867 | rsp_len = be32_to_cpu(fcprsp->rspRspLen); | |
4868 | rsp_info_code = fcprsp->rspInfo3; | |
4869 | ||
4870 | ||
4871 | lpfc_printf_vlog(vport, KERN_INFO, | |
4872 | LOG_FCP, | |
4873 | "0706 fcp_rsp valid 0x%x," | |
4874 | " rsp len=%d code 0x%x\n", | |
4875 | rsp_info, | |
4876 | rsp_len, rsp_info_code); | |
4877 | ||
4878 | if ((fcprsp->rspStatus2&RSP_LEN_VALID) && (rsp_len == 8)) { | |
4879 | switch (rsp_info_code) { | |
4880 | case RSP_NO_FAILURE: | |
4881 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
4882 | "0715 Task Mgmt No Failure\n"); | |
4883 | ret = SUCCESS; | |
4884 | break; | |
4885 | case RSP_TM_NOT_SUPPORTED: /* TM rejected */ | |
4886 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
4887 | "0716 Task Mgmt Target " | |
4888 | "reject\n"); | |
4889 | break; | |
4890 | case RSP_TM_NOT_COMPLETED: /* TM failed */ | |
4891 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
4892 | "0717 Task Mgmt Target " | |
4893 | "failed TM\n"); | |
4894 | break; | |
4895 | case RSP_TM_INVALID_LU: /* TM to invalid LU! */ | |
4896 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
4897 | "0718 Task Mgmt to invalid " | |
4898 | "LUN\n"); | |
4899 | break; | |
4900 | } | |
4901 | } | |
4902 | } | |
4903 | return ret; | |
4904 | } | |
4905 | ||
4906 | ||
9bad7671 | 4907 | /** |
bbb9d180 JS |
4908 | * lpfc_send_taskmgmt - Generic SCSI Task Mgmt Handler |
4909 | * @vport: The virtual port for which this call is being executed. | |
4910 | * @rdata: Pointer to remote port local data | |
4911 | * @tgt_id: Target ID of remote device. | |
4912 | * @lun_id: Lun number for the TMF | |
4913 | * @task_mgmt_cmd: type of TMF to send | |
9bad7671 | 4914 | * |
bbb9d180 JS |
4915 | * This routine builds and sends a TMF (SCSI Task Mgmt Function) to |
4916 | * a remote port. | |
9bad7671 | 4917 | * |
bbb9d180 JS |
4918 | * Return Code: |
4919 | * 0x2003 - Error | |
4920 | * 0x2002 - Success. | |
9bad7671 | 4921 | **/ |
dea3101e | 4922 | static int |
bbb9d180 | 4923 | lpfc_send_taskmgmt(struct lpfc_vport *vport, struct lpfc_rport_data *rdata, |
9cb78c16 | 4924 | unsigned tgt_id, uint64_t lun_id, |
bbb9d180 | 4925 | uint8_t task_mgmt_cmd) |
dea3101e | 4926 | { |
2e0fef85 | 4927 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 | 4928 | struct lpfc_scsi_buf *lpfc_cmd; |
bbb9d180 JS |
4929 | struct lpfc_iocbq *iocbq; |
4930 | struct lpfc_iocbq *iocbqrsp; | |
5989b8d4 | 4931 | struct lpfc_nodelist *pnode = rdata->pnode; |
bbb9d180 | 4932 | int ret; |
915caaaf | 4933 | int status; |
dea3101e | 4934 | |
5989b8d4 | 4935 | if (!pnode || !NLP_CHK_NODE_ACT(pnode)) |
915caaaf | 4936 | return FAILED; |
bbb9d180 | 4937 | |
19ca7609 | 4938 | lpfc_cmd = lpfc_get_scsi_buf(phba, rdata->pnode); |
dea3101e | 4939 | if (lpfc_cmd == NULL) |
915caaaf | 4940 | return FAILED; |
0c411222 | 4941 | lpfc_cmd->timeout = phba->cfg_task_mgmt_tmo; |
0b18ac42 | 4942 | lpfc_cmd->rdata = rdata; |
dea3101e | 4943 | |
bbb9d180 JS |
4944 | status = lpfc_scsi_prep_task_mgmt_cmd(vport, lpfc_cmd, lun_id, |
4945 | task_mgmt_cmd); | |
915caaaf JS |
4946 | if (!status) { |
4947 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
4948 | return FAILED; | |
4949 | } | |
dea3101e | 4950 | |
bbb9d180 | 4951 | iocbq = &lpfc_cmd->cur_iocbq; |
0bd4ca25 | 4952 | iocbqrsp = lpfc_sli_get_iocbq(phba); |
915caaaf JS |
4953 | if (iocbqrsp == NULL) { |
4954 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
4955 | return FAILED; | |
4956 | } | |
5a0916b4 | 4957 | iocbq->iocb_cmpl = lpfc_tskmgmt_def_cmpl; |
bbb9d180 | 4958 | |
e8b62011 | 4959 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, |
9cb78c16 | 4960 | "0702 Issue %s to TGT %d LUN %llu " |
6d368e53 | 4961 | "rpi x%x nlp_flag x%x Data: x%x x%x\n", |
bbb9d180 | 4962 | lpfc_taskmgmt_name(task_mgmt_cmd), tgt_id, lun_id, |
6d368e53 JS |
4963 | pnode->nlp_rpi, pnode->nlp_flag, iocbq->sli4_xritag, |
4964 | iocbq->iocb_flag); | |
bbb9d180 | 4965 | |
3772a991 | 4966 | status = lpfc_sli_issue_iocb_wait(phba, LPFC_FCP_RING, |
915caaaf | 4967 | iocbq, iocbqrsp, lpfc_cmd->timeout); |
53151bbb JS |
4968 | if ((status != IOCB_SUCCESS) || |
4969 | (iocbqrsp->iocb.ulpStatus != IOSTAT_SUCCESS)) { | |
bbb9d180 | 4970 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
9cb78c16 | 4971 | "0727 TMF %s to TGT %d LUN %llu failed (%d, %d) " |
6d368e53 | 4972 | "iocb_flag x%x\n", |
bbb9d180 JS |
4973 | lpfc_taskmgmt_name(task_mgmt_cmd), |
4974 | tgt_id, lun_id, iocbqrsp->iocb.ulpStatus, | |
6d368e53 JS |
4975 | iocbqrsp->iocb.un.ulpWord[4], |
4976 | iocbq->iocb_flag); | |
53151bbb JS |
4977 | /* if ulpStatus != IOCB_SUCCESS, then status == IOCB_SUCCESS */ |
4978 | if (status == IOCB_SUCCESS) { | |
4979 | if (iocbqrsp->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR) | |
4980 | /* Something in the FCP_RSP was invalid. | |
4981 | * Check conditions */ | |
4982 | ret = lpfc_check_fcp_rsp(vport, lpfc_cmd); | |
4983 | else | |
4984 | ret = FAILED; | |
4985 | } else if (status == IOCB_TIMEDOUT) { | |
4986 | ret = TIMEOUT_ERROR; | |
4987 | } else { | |
4988 | ret = FAILED; | |
4989 | } | |
4990 | lpfc_cmd->status = IOSTAT_DRIVER_REJECT; | |
4991 | } else | |
bbb9d180 JS |
4992 | ret = SUCCESS; |
4993 | ||
6175c02a | 4994 | lpfc_sli_release_iocbq(phba, iocbqrsp); |
bbb9d180 JS |
4995 | |
4996 | if (ret != TIMEOUT_ERROR) | |
4997 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
4998 | ||
4999 | return ret; | |
5000 | } | |
5001 | ||
5002 | /** | |
5003 | * lpfc_chk_tgt_mapped - | |
5004 | * @vport: The virtual port to check on | |
5005 | * @cmnd: Pointer to scsi_cmnd data structure. | |
5006 | * | |
5007 | * This routine delays until the scsi target (aka rport) for the | |
5008 | * command exists (is present and logged in) or we declare it non-existent. | |
5009 | * | |
5010 | * Return code : | |
5011 | * 0x2003 - Error | |
5012 | * 0x2002 - Success | |
5013 | **/ | |
5014 | static int | |
5015 | lpfc_chk_tgt_mapped(struct lpfc_vport *vport, struct scsi_cmnd *cmnd) | |
5016 | { | |
1ba981fd | 5017 | struct lpfc_rport_data *rdata; |
1c6f4ef5 | 5018 | struct lpfc_nodelist *pnode; |
bbb9d180 JS |
5019 | unsigned long later; |
5020 | ||
1ba981fd | 5021 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
1c6f4ef5 JS |
5022 | if (!rdata) { |
5023 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
5024 | "0797 Tgt Map rport failure: rdata x%p\n", rdata); | |
5025 | return FAILED; | |
5026 | } | |
5027 | pnode = rdata->pnode; | |
bbb9d180 JS |
5028 | /* |
5029 | * If target is not in a MAPPED state, delay until | |
5030 | * target is rediscovered or devloss timeout expires. | |
5031 | */ | |
5032 | later = msecs_to_jiffies(2 * vport->cfg_devloss_tmo * 1000) + jiffies; | |
5033 | while (time_after(later, jiffies)) { | |
5034 | if (!pnode || !NLP_CHK_NODE_ACT(pnode)) | |
5035 | return FAILED; | |
5036 | if (pnode->nlp_state == NLP_STE_MAPPED_NODE) | |
5037 | return SUCCESS; | |
5038 | schedule_timeout_uninterruptible(msecs_to_jiffies(500)); | |
1ba981fd | 5039 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
bbb9d180 JS |
5040 | if (!rdata) |
5041 | return FAILED; | |
5042 | pnode = rdata->pnode; | |
5043 | } | |
5044 | if (!pnode || !NLP_CHK_NODE_ACT(pnode) || | |
5045 | (pnode->nlp_state != NLP_STE_MAPPED_NODE)) | |
5046 | return FAILED; | |
5047 | return SUCCESS; | |
5048 | } | |
5049 | ||
5050 | /** | |
5051 | * lpfc_reset_flush_io_context - | |
5052 | * @vport: The virtual port (scsi_host) for the flush context | |
5053 | * @tgt_id: If aborting by Target contect - specifies the target id | |
5054 | * @lun_id: If aborting by Lun context - specifies the lun id | |
5055 | * @context: specifies the context level to flush at. | |
5056 | * | |
5057 | * After a reset condition via TMF, we need to flush orphaned i/o | |
5058 | * contexts from the adapter. This routine aborts any contexts | |
5059 | * outstanding, then waits for their completions. The wait is | |
5060 | * bounded by devloss_tmo though. | |
5061 | * | |
5062 | * Return code : | |
5063 | * 0x2003 - Error | |
5064 | * 0x2002 - Success | |
5065 | **/ | |
5066 | static int | |
5067 | lpfc_reset_flush_io_context(struct lpfc_vport *vport, uint16_t tgt_id, | |
5068 | uint64_t lun_id, lpfc_ctx_cmd context) | |
5069 | { | |
5070 | struct lpfc_hba *phba = vport->phba; | |
5071 | unsigned long later; | |
5072 | int cnt; | |
5073 | ||
5074 | cnt = lpfc_sli_sum_iocb(vport, tgt_id, lun_id, context); | |
6175c02a | 5075 | if (cnt) |
98912dda JS |
5076 | lpfc_sli_abort_taskmgmt(vport, |
5077 | &phba->sli.ring[phba->sli.fcp_ring], | |
5078 | tgt_id, lun_id, context); | |
915caaaf JS |
5079 | later = msecs_to_jiffies(2 * vport->cfg_devloss_tmo * 1000) + jiffies; |
5080 | while (time_after(later, jiffies) && cnt) { | |
5081 | schedule_timeout_uninterruptible(msecs_to_jiffies(20)); | |
bbb9d180 | 5082 | cnt = lpfc_sli_sum_iocb(vport, tgt_id, lun_id, context); |
dea3101e | 5083 | } |
dea3101e | 5084 | if (cnt) { |
e8b62011 | 5085 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
bbb9d180 JS |
5086 | "0724 I/O flush failure for context %s : cnt x%x\n", |
5087 | ((context == LPFC_CTX_LUN) ? "LUN" : | |
5088 | ((context == LPFC_CTX_TGT) ? "TGT" : | |
5089 | ((context == LPFC_CTX_HOST) ? "HOST" : "Unknown"))), | |
5090 | cnt); | |
5091 | return FAILED; | |
dea3101e | 5092 | } |
bbb9d180 JS |
5093 | return SUCCESS; |
5094 | } | |
5095 | ||
5096 | /** | |
5097 | * lpfc_device_reset_handler - scsi_host_template eh_device_reset entry point | |
5098 | * @cmnd: Pointer to scsi_cmnd data structure. | |
5099 | * | |
5100 | * This routine does a device reset by sending a LUN_RESET task management | |
5101 | * command. | |
5102 | * | |
5103 | * Return code : | |
5104 | * 0x2003 - Error | |
5105 | * 0x2002 - Success | |
5106 | **/ | |
5107 | static int | |
5108 | lpfc_device_reset_handler(struct scsi_cmnd *cmnd) | |
5109 | { | |
5110 | struct Scsi_Host *shost = cmnd->device->host; | |
5111 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
1ba981fd | 5112 | struct lpfc_rport_data *rdata; |
1c6f4ef5 | 5113 | struct lpfc_nodelist *pnode; |
bbb9d180 | 5114 | unsigned tgt_id = cmnd->device->id; |
9cb78c16 | 5115 | uint64_t lun_id = cmnd->device->lun; |
bbb9d180 | 5116 | struct lpfc_scsi_event_header scsi_event; |
53151bbb | 5117 | int status; |
bbb9d180 | 5118 | |
1ba981fd | 5119 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
ad490b6e | 5120 | if (!rdata || !rdata->pnode) { |
1c6f4ef5 | 5121 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
ad490b6e JS |
5122 | "0798 Device Reset rport failure: rdata x%p\n", |
5123 | rdata); | |
1c6f4ef5 JS |
5124 | return FAILED; |
5125 | } | |
5126 | pnode = rdata->pnode; | |
589a52d6 | 5127 | status = fc_block_scsi_eh(cmnd); |
908e18e4 | 5128 | if (status != 0 && status != SUCCESS) |
589a52d6 | 5129 | return status; |
bbb9d180 JS |
5130 | |
5131 | status = lpfc_chk_tgt_mapped(vport, cmnd); | |
5132 | if (status == FAILED) { | |
5133 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
5134 | "0721 Device Reset rport failure: rdata x%p\n", rdata); | |
5135 | return FAILED; | |
5136 | } | |
5137 | ||
5138 | scsi_event.event_type = FC_REG_SCSI_EVENT; | |
5139 | scsi_event.subcategory = LPFC_EVENT_LUNRESET; | |
5140 | scsi_event.lun = lun_id; | |
5141 | memcpy(scsi_event.wwpn, &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
5142 | memcpy(scsi_event.wwnn, &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
5143 | ||
5144 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
5145 | sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID); | |
5146 | ||
5147 | status = lpfc_send_taskmgmt(vport, rdata, tgt_id, lun_id, | |
5148 | FCP_LUN_RESET); | |
5149 | ||
5150 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
9cb78c16 | 5151 | "0713 SCSI layer issued Device Reset (%d, %llu) " |
bbb9d180 JS |
5152 | "return x%x\n", tgt_id, lun_id, status); |
5153 | ||
5154 | /* | |
5155 | * We have to clean up i/o as : they may be orphaned by the TMF; | |
5156 | * or if the TMF failed, they may be in an indeterminate state. | |
5157 | * So, continue on. | |
5158 | * We will report success if all the i/o aborts successfully. | |
5159 | */ | |
53151bbb JS |
5160 | if (status == SUCCESS) |
5161 | status = lpfc_reset_flush_io_context(vport, tgt_id, lun_id, | |
bbb9d180 | 5162 | LPFC_CTX_LUN); |
53151bbb JS |
5163 | |
5164 | return status; | |
bbb9d180 JS |
5165 | } |
5166 | ||
5167 | /** | |
5168 | * lpfc_target_reset_handler - scsi_host_template eh_target_reset entry point | |
5169 | * @cmnd: Pointer to scsi_cmnd data structure. | |
5170 | * | |
5171 | * This routine does a target reset by sending a TARGET_RESET task management | |
5172 | * command. | |
5173 | * | |
5174 | * Return code : | |
5175 | * 0x2003 - Error | |
5176 | * 0x2002 - Success | |
5177 | **/ | |
5178 | static int | |
5179 | lpfc_target_reset_handler(struct scsi_cmnd *cmnd) | |
5180 | { | |
5181 | struct Scsi_Host *shost = cmnd->device->host; | |
5182 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
1ba981fd | 5183 | struct lpfc_rport_data *rdata; |
1c6f4ef5 | 5184 | struct lpfc_nodelist *pnode; |
bbb9d180 | 5185 | unsigned tgt_id = cmnd->device->id; |
9cb78c16 | 5186 | uint64_t lun_id = cmnd->device->lun; |
bbb9d180 | 5187 | struct lpfc_scsi_event_header scsi_event; |
53151bbb | 5188 | int status; |
bbb9d180 | 5189 | |
1ba981fd | 5190 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
1c6f4ef5 JS |
5191 | if (!rdata) { |
5192 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
5193 | "0799 Target Reset rport failure: rdata x%p\n", rdata); | |
5194 | return FAILED; | |
5195 | } | |
5196 | pnode = rdata->pnode; | |
589a52d6 | 5197 | status = fc_block_scsi_eh(cmnd); |
908e18e4 | 5198 | if (status != 0 && status != SUCCESS) |
589a52d6 | 5199 | return status; |
bbb9d180 JS |
5200 | |
5201 | status = lpfc_chk_tgt_mapped(vport, cmnd); | |
5202 | if (status == FAILED) { | |
5203 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
5204 | "0722 Target Reset rport failure: rdata x%p\n", rdata); | |
63e480fd JS |
5205 | if (pnode) { |
5206 | spin_lock_irq(shost->host_lock); | |
5207 | pnode->nlp_flag &= ~NLP_NPR_ADISC; | |
5208 | pnode->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; | |
5209 | spin_unlock_irq(shost->host_lock); | |
5210 | } | |
8c50d25c JS |
5211 | lpfc_reset_flush_io_context(vport, tgt_id, lun_id, |
5212 | LPFC_CTX_TGT); | |
5213 | return FAST_IO_FAIL; | |
bbb9d180 JS |
5214 | } |
5215 | ||
5216 | scsi_event.event_type = FC_REG_SCSI_EVENT; | |
5217 | scsi_event.subcategory = LPFC_EVENT_TGTRESET; | |
5218 | scsi_event.lun = 0; | |
5219 | memcpy(scsi_event.wwpn, &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
5220 | memcpy(scsi_event.wwnn, &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
5221 | ||
5222 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
5223 | sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID); | |
5224 | ||
5225 | status = lpfc_send_taskmgmt(vport, rdata, tgt_id, lun_id, | |
5226 | FCP_TARGET_RESET); | |
5227 | ||
5228 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
9cb78c16 | 5229 | "0723 SCSI layer issued Target Reset (%d, %llu) " |
bbb9d180 JS |
5230 | "return x%x\n", tgt_id, lun_id, status); |
5231 | ||
5232 | /* | |
5233 | * We have to clean up i/o as : they may be orphaned by the TMF; | |
5234 | * or if the TMF failed, they may be in an indeterminate state. | |
5235 | * So, continue on. | |
5236 | * We will report success if all the i/o aborts successfully. | |
5237 | */ | |
53151bbb JS |
5238 | if (status == SUCCESS) |
5239 | status = lpfc_reset_flush_io_context(vport, tgt_id, lun_id, | |
3a70730a | 5240 | LPFC_CTX_TGT); |
53151bbb | 5241 | return status; |
dea3101e | 5242 | } |
5243 | ||
9bad7671 | 5244 | /** |
3621a710 | 5245 | * lpfc_bus_reset_handler - scsi_host_template eh_bus_reset_handler entry point |
9bad7671 JS |
5246 | * @cmnd: Pointer to scsi_cmnd data structure. |
5247 | * | |
bbb9d180 JS |
5248 | * This routine does target reset to all targets on @cmnd->device->host. |
5249 | * This emulates Parallel SCSI Bus Reset Semantics. | |
9bad7671 | 5250 | * |
bbb9d180 JS |
5251 | * Return code : |
5252 | * 0x2003 - Error | |
5253 | * 0x2002 - Success | |
9bad7671 | 5254 | **/ |
94d0e7b8 | 5255 | static int |
7054a606 | 5256 | lpfc_bus_reset_handler(struct scsi_cmnd *cmnd) |
dea3101e | 5257 | { |
2e0fef85 JS |
5258 | struct Scsi_Host *shost = cmnd->device->host; |
5259 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
dea3101e | 5260 | struct lpfc_nodelist *ndlp = NULL; |
ea2151b4 | 5261 | struct lpfc_scsi_event_header scsi_event; |
bbb9d180 JS |
5262 | int match; |
5263 | int ret = SUCCESS, status, i; | |
ea2151b4 JS |
5264 | |
5265 | scsi_event.event_type = FC_REG_SCSI_EVENT; | |
5266 | scsi_event.subcategory = LPFC_EVENT_BUSRESET; | |
5267 | scsi_event.lun = 0; | |
5268 | memcpy(scsi_event.wwpn, &vport->fc_portname, sizeof(struct lpfc_name)); | |
5269 | memcpy(scsi_event.wwnn, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
5270 | ||
bbb9d180 JS |
5271 | fc_host_post_vendor_event(shost, fc_get_event_number(), |
5272 | sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID); | |
dea3101e | 5273 | |
bf08611b | 5274 | status = fc_block_scsi_eh(cmnd); |
908e18e4 | 5275 | if (status != 0 && status != SUCCESS) |
bf08611b | 5276 | return status; |
bbb9d180 | 5277 | |
dea3101e | 5278 | /* |
5279 | * Since the driver manages a single bus device, reset all | |
5280 | * targets known to the driver. Should any target reset | |
5281 | * fail, this routine returns failure to the midlayer. | |
5282 | */ | |
e17da18e | 5283 | for (i = 0; i < LPFC_MAX_TARGET; i++) { |
685f0bf7 | 5284 | /* Search for mapped node by target ID */ |
dea3101e | 5285 | match = 0; |
2e0fef85 JS |
5286 | spin_lock_irq(shost->host_lock); |
5287 | list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { | |
e47c9093 JS |
5288 | if (!NLP_CHK_NODE_ACT(ndlp)) |
5289 | continue; | |
a6571c6e JS |
5290 | if (vport->phba->cfg_fcp2_no_tgt_reset && |
5291 | (ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE)) | |
5292 | continue; | |
685f0bf7 | 5293 | if (ndlp->nlp_state == NLP_STE_MAPPED_NODE && |
915caaaf | 5294 | ndlp->nlp_sid == i && |
685f0bf7 | 5295 | ndlp->rport) { |
dea3101e | 5296 | match = 1; |
5297 | break; | |
5298 | } | |
5299 | } | |
2e0fef85 | 5300 | spin_unlock_irq(shost->host_lock); |
dea3101e | 5301 | if (!match) |
5302 | continue; | |
bbb9d180 JS |
5303 | |
5304 | status = lpfc_send_taskmgmt(vport, ndlp->rport->dd_data, | |
5305 | i, 0, FCP_TARGET_RESET); | |
5306 | ||
5307 | if (status != SUCCESS) { | |
e8b62011 JS |
5308 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
5309 | "0700 Bus Reset on target %d failed\n", | |
5310 | i); | |
915caaaf | 5311 | ret = FAILED; |
dea3101e | 5312 | } |
5313 | } | |
6175c02a | 5314 | /* |
bbb9d180 JS |
5315 | * We have to clean up i/o as : they may be orphaned by the TMFs |
5316 | * above; or if any of the TMFs failed, they may be in an | |
5317 | * indeterminate state. | |
5318 | * We will report success if all the i/o aborts successfully. | |
6175c02a | 5319 | */ |
bbb9d180 JS |
5320 | |
5321 | status = lpfc_reset_flush_io_context(vport, 0, 0, LPFC_CTX_HOST); | |
5322 | if (status != SUCCESS) | |
0bd4ca25 | 5323 | ret = FAILED; |
bbb9d180 | 5324 | |
e8b62011 JS |
5325 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
5326 | "0714 SCSI layer issued Bus Reset Data: x%x\n", ret); | |
dea3101e | 5327 | return ret; |
5328 | } | |
5329 | ||
27b01b82 JS |
5330 | /** |
5331 | * lpfc_host_reset_handler - scsi_host_template eh_host_reset_handler entry pt | |
5332 | * @cmnd: Pointer to scsi_cmnd data structure. | |
5333 | * | |
5334 | * This routine does host reset to the adaptor port. It brings the HBA | |
5335 | * offline, performs a board restart, and then brings the board back online. | |
5336 | * The lpfc_offline calls lpfc_sli_hba_down which will abort and local | |
5337 | * reject all outstanding SCSI commands to the host and error returned | |
5338 | * back to SCSI mid-level. As this will be SCSI mid-level's last resort | |
5339 | * of error handling, it will only return error if resetting of the adapter | |
5340 | * is not successful; in all other cases, will return success. | |
5341 | * | |
5342 | * Return code : | |
5343 | * 0x2003 - Error | |
5344 | * 0x2002 - Success | |
5345 | **/ | |
5346 | static int | |
5347 | lpfc_host_reset_handler(struct scsi_cmnd *cmnd) | |
5348 | { | |
5349 | struct Scsi_Host *shost = cmnd->device->host; | |
5350 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
5351 | struct lpfc_hba *phba = vport->phba; | |
5352 | int rc, ret = SUCCESS; | |
5353 | ||
a88dbb6a JS |
5354 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
5355 | "3172 SCSI layer issued Host Reset Data:\n"); | |
5356 | ||
618a5230 | 5357 | lpfc_offline_prep(phba, LPFC_MBX_WAIT); |
27b01b82 JS |
5358 | lpfc_offline(phba); |
5359 | rc = lpfc_sli_brdrestart(phba); | |
5360 | if (rc) | |
5361 | ret = FAILED; | |
a88dbb6a JS |
5362 | rc = lpfc_online(phba); |
5363 | if (rc) | |
5364 | ret = FAILED; | |
27b01b82 JS |
5365 | lpfc_unblock_mgmt_io(phba); |
5366 | ||
a88dbb6a JS |
5367 | if (ret == FAILED) { |
5368 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
5369 | "3323 Failed host reset, bring it offline\n"); | |
5370 | lpfc_sli4_offline_eratt(phba); | |
5371 | } | |
27b01b82 JS |
5372 | return ret; |
5373 | } | |
5374 | ||
9bad7671 | 5375 | /** |
3621a710 | 5376 | * lpfc_slave_alloc - scsi_host_template slave_alloc entry point |
9bad7671 JS |
5377 | * @sdev: Pointer to scsi_device. |
5378 | * | |
5379 | * This routine populates the cmds_per_lun count + 2 scsi_bufs into this host's | |
5380 | * globally available list of scsi buffers. This routine also makes sure scsi | |
5381 | * buffer is not allocated more than HBA limit conveyed to midlayer. This list | |
5382 | * of scsi buffer exists for the lifetime of the driver. | |
5383 | * | |
5384 | * Return codes: | |
5385 | * non-0 - Error | |
5386 | * 0 - Success | |
5387 | **/ | |
dea3101e | 5388 | static int |
5389 | lpfc_slave_alloc(struct scsi_device *sdev) | |
5390 | { | |
2e0fef85 JS |
5391 | struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; |
5392 | struct lpfc_hba *phba = vport->phba; | |
19a7b4ae | 5393 | struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); |
3772a991 | 5394 | uint32_t total = 0; |
dea3101e | 5395 | uint32_t num_to_alloc = 0; |
3772a991 | 5396 | int num_allocated = 0; |
d7c47992 | 5397 | uint32_t sdev_cnt; |
1ba981fd JS |
5398 | struct lpfc_device_data *device_data; |
5399 | unsigned long flags; | |
5400 | struct lpfc_name target_wwpn; | |
dea3101e | 5401 | |
19a7b4ae | 5402 | if (!rport || fc_remote_port_chkready(rport)) |
dea3101e | 5403 | return -ENXIO; |
5404 | ||
f38fa0bb | 5405 | if (phba->cfg_fof) { |
1ba981fd JS |
5406 | |
5407 | /* | |
5408 | * Check to see if the device data structure for the lun | |
5409 | * exists. If not, create one. | |
5410 | */ | |
5411 | ||
5412 | u64_to_wwn(rport->port_name, target_wwpn.u.wwn); | |
5413 | spin_lock_irqsave(&phba->devicelock, flags); | |
5414 | device_data = __lpfc_get_device_data(phba, | |
5415 | &phba->luns, | |
5416 | &vport->fc_portname, | |
5417 | &target_wwpn, | |
5418 | sdev->lun); | |
5419 | if (!device_data) { | |
5420 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5421 | device_data = lpfc_create_device_data(phba, | |
5422 | &vport->fc_portname, | |
5423 | &target_wwpn, | |
5424 | sdev->lun, true); | |
5425 | if (!device_data) | |
5426 | return -ENOMEM; | |
5427 | spin_lock_irqsave(&phba->devicelock, flags); | |
5428 | list_add_tail(&device_data->listentry, &phba->luns); | |
5429 | } | |
5430 | device_data->rport_data = rport->dd_data; | |
5431 | device_data->available = true; | |
5432 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5433 | sdev->hostdata = device_data; | |
5434 | } else { | |
5435 | sdev->hostdata = rport->dd_data; | |
5436 | } | |
d7c47992 | 5437 | sdev_cnt = atomic_inc_return(&phba->sdev_cnt); |
dea3101e | 5438 | |
5439 | /* | |
5440 | * Populate the cmds_per_lun count scsi_bufs into this host's globally | |
5441 | * available list of scsi buffers. Don't allocate more than the | |
a784efbf JSEC |
5442 | * HBA limit conveyed to the midlayer via the host structure. The |
5443 | * formula accounts for the lun_queue_depth + error handlers + 1 | |
5444 | * extra. This list of scsi bufs exists for the lifetime of the driver. | |
dea3101e | 5445 | */ |
5446 | total = phba->total_scsi_bufs; | |
3de2a653 | 5447 | num_to_alloc = vport->cfg_lun_queue_depth + 2; |
92d7f7b0 | 5448 | |
d7c47992 JS |
5449 | /* If allocated buffers are enough do nothing */ |
5450 | if ((sdev_cnt * (vport->cfg_lun_queue_depth + 2)) < total) | |
5451 | return 0; | |
5452 | ||
92d7f7b0 JS |
5453 | /* Allow some exchanges to be available always to complete discovery */ |
5454 | if (total >= phba->cfg_hba_queue_depth - LPFC_DISC_IOCB_BUFF_COUNT ) { | |
e8b62011 JS |
5455 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
5456 | "0704 At limitation of %d preallocated " | |
5457 | "command buffers\n", total); | |
dea3101e | 5458 | return 0; |
92d7f7b0 JS |
5459 | /* Allow some exchanges to be available always to complete discovery */ |
5460 | } else if (total + num_to_alloc > | |
5461 | phba->cfg_hba_queue_depth - LPFC_DISC_IOCB_BUFF_COUNT ) { | |
e8b62011 JS |
5462 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
5463 | "0705 Allocation request of %d " | |
5464 | "command buffers will exceed max of %d. " | |
5465 | "Reducing allocation request to %d.\n", | |
5466 | num_to_alloc, phba->cfg_hba_queue_depth, | |
5467 | (phba->cfg_hba_queue_depth - total)); | |
dea3101e | 5468 | num_to_alloc = phba->cfg_hba_queue_depth - total; |
5469 | } | |
3772a991 JS |
5470 | num_allocated = lpfc_new_scsi_buf(vport, num_to_alloc); |
5471 | if (num_to_alloc != num_allocated) { | |
96f7077f JS |
5472 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
5473 | "0708 Allocation request of %d " | |
5474 | "command buffers did not succeed. " | |
5475 | "Allocated %d buffers.\n", | |
5476 | num_to_alloc, num_allocated); | |
dea3101e | 5477 | } |
1c6f4ef5 JS |
5478 | if (num_allocated > 0) |
5479 | phba->total_scsi_bufs += num_allocated; | |
dea3101e | 5480 | return 0; |
5481 | } | |
5482 | ||
9bad7671 | 5483 | /** |
3621a710 | 5484 | * lpfc_slave_configure - scsi_host_template slave_configure entry point |
9bad7671 JS |
5485 | * @sdev: Pointer to scsi_device. |
5486 | * | |
5487 | * This routine configures following items | |
5488 | * - Tag command queuing support for @sdev if supported. | |
9bad7671 JS |
5489 | * - Enable SLI polling for fcp ring if ENABLE_FCP_RING_POLLING flag is set. |
5490 | * | |
5491 | * Return codes: | |
5492 | * 0 - Success | |
5493 | **/ | |
dea3101e | 5494 | static int |
5495 | lpfc_slave_configure(struct scsi_device *sdev) | |
5496 | { | |
2e0fef85 JS |
5497 | struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; |
5498 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 5499 | |
db5ed4df | 5500 | scsi_change_queue_depth(sdev, vport->cfg_lun_queue_depth); |
dea3101e | 5501 | |
875fbdfe | 5502 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { |
45ed1190 JS |
5503 | lpfc_sli_handle_fast_ring_event(phba, |
5504 | &phba->sli.ring[LPFC_FCP_RING], HA_R0RE_REQ); | |
875fbdfe JSEC |
5505 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
5506 | lpfc_poll_rearm_timer(phba); | |
5507 | } | |
5508 | ||
dea3101e | 5509 | return 0; |
5510 | } | |
5511 | ||
9bad7671 | 5512 | /** |
3621a710 | 5513 | * lpfc_slave_destroy - slave_destroy entry point of SHT data structure |
9bad7671 JS |
5514 | * @sdev: Pointer to scsi_device. |
5515 | * | |
5516 | * This routine sets @sdev hostatdata filed to null. | |
5517 | **/ | |
dea3101e | 5518 | static void |
5519 | lpfc_slave_destroy(struct scsi_device *sdev) | |
5520 | { | |
d7c47992 JS |
5521 | struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; |
5522 | struct lpfc_hba *phba = vport->phba; | |
1ba981fd JS |
5523 | unsigned long flags; |
5524 | struct lpfc_device_data *device_data = sdev->hostdata; | |
5525 | ||
d7c47992 | 5526 | atomic_dec(&phba->sdev_cnt); |
f38fa0bb | 5527 | if ((phba->cfg_fof) && (device_data)) { |
1ba981fd JS |
5528 | spin_lock_irqsave(&phba->devicelock, flags); |
5529 | device_data->available = false; | |
5530 | if (!device_data->oas_enabled) | |
5531 | lpfc_delete_device_data(phba, device_data); | |
5532 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5533 | } | |
dea3101e | 5534 | sdev->hostdata = NULL; |
5535 | return; | |
5536 | } | |
5537 | ||
1ba981fd JS |
5538 | /** |
5539 | * lpfc_create_device_data - creates and initializes device data structure for OAS | |
5540 | * @pha: Pointer to host bus adapter structure. | |
5541 | * @vport_wwpn: Pointer to vport's wwpn information | |
5542 | * @target_wwpn: Pointer to target's wwpn information | |
5543 | * @lun: Lun on target | |
5544 | * @atomic_create: Flag to indicate if memory should be allocated using the | |
5545 | * GFP_ATOMIC flag or not. | |
5546 | * | |
5547 | * This routine creates a device data structure which will contain identifying | |
5548 | * information for the device (host wwpn, target wwpn, lun), state of OAS, | |
5549 | * whether or not the corresponding lun is available by the system, | |
5550 | * and pointer to the rport data. | |
5551 | * | |
5552 | * Return codes: | |
5553 | * NULL - Error | |
5554 | * Pointer to lpfc_device_data - Success | |
5555 | **/ | |
5556 | struct lpfc_device_data* | |
5557 | lpfc_create_device_data(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn, | |
5558 | struct lpfc_name *target_wwpn, uint64_t lun, | |
5559 | bool atomic_create) | |
5560 | { | |
5561 | ||
5562 | struct lpfc_device_data *lun_info; | |
5563 | int memory_flags; | |
5564 | ||
5565 | if (unlikely(!phba) || !vport_wwpn || !target_wwpn || | |
f38fa0bb | 5566 | !(phba->cfg_fof)) |
1ba981fd JS |
5567 | return NULL; |
5568 | ||
5569 | /* Attempt to create the device data to contain lun info */ | |
5570 | ||
5571 | if (atomic_create) | |
5572 | memory_flags = GFP_ATOMIC; | |
5573 | else | |
5574 | memory_flags = GFP_KERNEL; | |
5575 | lun_info = mempool_alloc(phba->device_data_mem_pool, memory_flags); | |
5576 | if (!lun_info) | |
5577 | return NULL; | |
5578 | INIT_LIST_HEAD(&lun_info->listentry); | |
5579 | lun_info->rport_data = NULL; | |
5580 | memcpy(&lun_info->device_id.vport_wwpn, vport_wwpn, | |
5581 | sizeof(struct lpfc_name)); | |
5582 | memcpy(&lun_info->device_id.target_wwpn, target_wwpn, | |
5583 | sizeof(struct lpfc_name)); | |
5584 | lun_info->device_id.lun = lun; | |
5585 | lun_info->oas_enabled = false; | |
5586 | lun_info->available = false; | |
5587 | return lun_info; | |
5588 | } | |
5589 | ||
5590 | /** | |
5591 | * lpfc_delete_device_data - frees a device data structure for OAS | |
5592 | * @pha: Pointer to host bus adapter structure. | |
5593 | * @lun_info: Pointer to device data structure to free. | |
5594 | * | |
5595 | * This routine frees the previously allocated device data structure passed. | |
5596 | * | |
5597 | **/ | |
5598 | void | |
5599 | lpfc_delete_device_data(struct lpfc_hba *phba, | |
5600 | struct lpfc_device_data *lun_info) | |
5601 | { | |
5602 | ||
5603 | if (unlikely(!phba) || !lun_info || | |
f38fa0bb | 5604 | !(phba->cfg_fof)) |
1ba981fd JS |
5605 | return; |
5606 | ||
5607 | if (!list_empty(&lun_info->listentry)) | |
5608 | list_del(&lun_info->listentry); | |
5609 | mempool_free(lun_info, phba->device_data_mem_pool); | |
5610 | return; | |
5611 | } | |
5612 | ||
5613 | /** | |
5614 | * __lpfc_get_device_data - returns the device data for the specified lun | |
5615 | * @pha: Pointer to host bus adapter structure. | |
5616 | * @list: Point to list to search. | |
5617 | * @vport_wwpn: Pointer to vport's wwpn information | |
5618 | * @target_wwpn: Pointer to target's wwpn information | |
5619 | * @lun: Lun on target | |
5620 | * | |
5621 | * This routine searches the list passed for the specified lun's device data. | |
5622 | * This function does not hold locks, it is the responsibility of the caller | |
5623 | * to ensure the proper lock is held before calling the function. | |
5624 | * | |
5625 | * Return codes: | |
5626 | * NULL - Error | |
5627 | * Pointer to lpfc_device_data - Success | |
5628 | **/ | |
5629 | struct lpfc_device_data* | |
5630 | __lpfc_get_device_data(struct lpfc_hba *phba, struct list_head *list, | |
5631 | struct lpfc_name *vport_wwpn, | |
5632 | struct lpfc_name *target_wwpn, uint64_t lun) | |
5633 | { | |
5634 | ||
5635 | struct lpfc_device_data *lun_info; | |
5636 | ||
5637 | if (unlikely(!phba) || !list || !vport_wwpn || !target_wwpn || | |
f38fa0bb | 5638 | !phba->cfg_fof) |
1ba981fd JS |
5639 | return NULL; |
5640 | ||
5641 | /* Check to see if the lun is already enabled for OAS. */ | |
5642 | ||
5643 | list_for_each_entry(lun_info, list, listentry) { | |
5644 | if ((memcmp(&lun_info->device_id.vport_wwpn, vport_wwpn, | |
5645 | sizeof(struct lpfc_name)) == 0) && | |
5646 | (memcmp(&lun_info->device_id.target_wwpn, target_wwpn, | |
5647 | sizeof(struct lpfc_name)) == 0) && | |
5648 | (lun_info->device_id.lun == lun)) | |
5649 | return lun_info; | |
5650 | } | |
5651 | ||
5652 | return NULL; | |
5653 | } | |
5654 | ||
5655 | /** | |
5656 | * lpfc_find_next_oas_lun - searches for the next oas lun | |
5657 | * @pha: Pointer to host bus adapter structure. | |
5658 | * @vport_wwpn: Pointer to vport's wwpn information | |
5659 | * @target_wwpn: Pointer to target's wwpn information | |
5660 | * @starting_lun: Pointer to the lun to start searching for | |
5661 | * @found_vport_wwpn: Pointer to the found lun's vport wwpn information | |
5662 | * @found_target_wwpn: Pointer to the found lun's target wwpn information | |
5663 | * @found_lun: Pointer to the found lun. | |
5664 | * @found_lun_status: Pointer to status of the found lun. | |
5665 | * | |
5666 | * This routine searches the luns list for the specified lun | |
5667 | * or the first lun for the vport/target. If the vport wwpn contains | |
5668 | * a zero value then a specific vport is not specified. In this case | |
5669 | * any vport which contains the lun will be considered a match. If the | |
5670 | * target wwpn contains a zero value then a specific target is not specified. | |
5671 | * In this case any target which contains the lun will be considered a | |
5672 | * match. If the lun is found, the lun, vport wwpn, target wwpn and lun status | |
5673 | * are returned. The function will also return the next lun if available. | |
5674 | * If the next lun is not found, starting_lun parameter will be set to | |
5675 | * NO_MORE_OAS_LUN. | |
5676 | * | |
5677 | * Return codes: | |
5678 | * non-0 - Error | |
5679 | * 0 - Success | |
5680 | **/ | |
5681 | bool | |
5682 | lpfc_find_next_oas_lun(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn, | |
5683 | struct lpfc_name *target_wwpn, uint64_t *starting_lun, | |
5684 | struct lpfc_name *found_vport_wwpn, | |
5685 | struct lpfc_name *found_target_wwpn, | |
5686 | uint64_t *found_lun, | |
5687 | uint32_t *found_lun_status) | |
5688 | { | |
5689 | ||
5690 | unsigned long flags; | |
5691 | struct lpfc_device_data *lun_info; | |
5692 | struct lpfc_device_id *device_id; | |
5693 | uint64_t lun; | |
5694 | bool found = false; | |
5695 | ||
5696 | if (unlikely(!phba) || !vport_wwpn || !target_wwpn || | |
5697 | !starting_lun || !found_vport_wwpn || | |
5698 | !found_target_wwpn || !found_lun || !found_lun_status || | |
5699 | (*starting_lun == NO_MORE_OAS_LUN) || | |
f38fa0bb | 5700 | !phba->cfg_fof) |
1ba981fd JS |
5701 | return false; |
5702 | ||
5703 | lun = *starting_lun; | |
5704 | *found_lun = NO_MORE_OAS_LUN; | |
5705 | *starting_lun = NO_MORE_OAS_LUN; | |
5706 | ||
5707 | /* Search for lun or the lun closet in value */ | |
5708 | ||
5709 | spin_lock_irqsave(&phba->devicelock, flags); | |
5710 | list_for_each_entry(lun_info, &phba->luns, listentry) { | |
5711 | if (((wwn_to_u64(vport_wwpn->u.wwn) == 0) || | |
5712 | (memcmp(&lun_info->device_id.vport_wwpn, vport_wwpn, | |
5713 | sizeof(struct lpfc_name)) == 0)) && | |
5714 | ((wwn_to_u64(target_wwpn->u.wwn) == 0) || | |
5715 | (memcmp(&lun_info->device_id.target_wwpn, target_wwpn, | |
5716 | sizeof(struct lpfc_name)) == 0)) && | |
5717 | (lun_info->oas_enabled)) { | |
5718 | device_id = &lun_info->device_id; | |
5719 | if ((!found) && | |
5720 | ((lun == FIND_FIRST_OAS_LUN) || | |
5721 | (device_id->lun == lun))) { | |
5722 | *found_lun = device_id->lun; | |
5723 | memcpy(found_vport_wwpn, | |
5724 | &device_id->vport_wwpn, | |
5725 | sizeof(struct lpfc_name)); | |
5726 | memcpy(found_target_wwpn, | |
5727 | &device_id->target_wwpn, | |
5728 | sizeof(struct lpfc_name)); | |
5729 | if (lun_info->available) | |
5730 | *found_lun_status = | |
5731 | OAS_LUN_STATUS_EXISTS; | |
5732 | else | |
5733 | *found_lun_status = 0; | |
5734 | if (phba->cfg_oas_flags & OAS_FIND_ANY_VPORT) | |
5735 | memset(vport_wwpn, 0x0, | |
5736 | sizeof(struct lpfc_name)); | |
5737 | if (phba->cfg_oas_flags & OAS_FIND_ANY_TARGET) | |
5738 | memset(target_wwpn, 0x0, | |
5739 | sizeof(struct lpfc_name)); | |
5740 | found = true; | |
5741 | } else if (found) { | |
5742 | *starting_lun = device_id->lun; | |
5743 | memcpy(vport_wwpn, &device_id->vport_wwpn, | |
5744 | sizeof(struct lpfc_name)); | |
5745 | memcpy(target_wwpn, &device_id->target_wwpn, | |
5746 | sizeof(struct lpfc_name)); | |
5747 | break; | |
5748 | } | |
5749 | } | |
5750 | } | |
5751 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5752 | return found; | |
5753 | } | |
5754 | ||
5755 | /** | |
5756 | * lpfc_enable_oas_lun - enables a lun for OAS operations | |
5757 | * @pha: Pointer to host bus adapter structure. | |
5758 | * @vport_wwpn: Pointer to vport's wwpn information | |
5759 | * @target_wwpn: Pointer to target's wwpn information | |
5760 | * @lun: Lun | |
5761 | * | |
5762 | * This routine enables a lun for oas operations. The routines does so by | |
5763 | * doing the following : | |
5764 | * | |
5765 | * 1) Checks to see if the device data for the lun has been created. | |
5766 | * 2) If found, sets the OAS enabled flag if not set and returns. | |
5767 | * 3) Otherwise, creates a device data structure. | |
5768 | * 4) If successfully created, indicates the device data is for an OAS lun, | |
5769 | * indicates the lun is not available and add to the list of luns. | |
5770 | * | |
5771 | * Return codes: | |
5772 | * false - Error | |
5773 | * true - Success | |
5774 | **/ | |
5775 | bool | |
5776 | lpfc_enable_oas_lun(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn, | |
5777 | struct lpfc_name *target_wwpn, uint64_t lun) | |
5778 | { | |
5779 | ||
5780 | struct lpfc_device_data *lun_info; | |
5781 | unsigned long flags; | |
5782 | ||
5783 | if (unlikely(!phba) || !vport_wwpn || !target_wwpn || | |
f38fa0bb | 5784 | !phba->cfg_fof) |
1ba981fd JS |
5785 | return false; |
5786 | ||
5787 | spin_lock_irqsave(&phba->devicelock, flags); | |
5788 | ||
5789 | /* Check to see if the device data for the lun has been created */ | |
5790 | lun_info = __lpfc_get_device_data(phba, &phba->luns, vport_wwpn, | |
5791 | target_wwpn, lun); | |
5792 | if (lun_info) { | |
5793 | if (!lun_info->oas_enabled) | |
5794 | lun_info->oas_enabled = true; | |
5795 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5796 | return true; | |
5797 | } | |
5798 | ||
5799 | /* Create an lun info structure and add to list of luns */ | |
5800 | lun_info = lpfc_create_device_data(phba, vport_wwpn, target_wwpn, lun, | |
5801 | false); | |
5802 | if (lun_info) { | |
5803 | lun_info->oas_enabled = true; | |
5804 | lun_info->available = false; | |
5805 | list_add_tail(&lun_info->listentry, &phba->luns); | |
5806 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5807 | return true; | |
5808 | } | |
5809 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5810 | return false; | |
5811 | } | |
5812 | ||
5813 | /** | |
5814 | * lpfc_disable_oas_lun - disables a lun for OAS operations | |
5815 | * @pha: Pointer to host bus adapter structure. | |
5816 | * @vport_wwpn: Pointer to vport's wwpn information | |
5817 | * @target_wwpn: Pointer to target's wwpn information | |
5818 | * @lun: Lun | |
5819 | * | |
5820 | * This routine disables a lun for oas operations. The routines does so by | |
5821 | * doing the following : | |
5822 | * | |
5823 | * 1) Checks to see if the device data for the lun is created. | |
5824 | * 2) If present, clears the flag indicating this lun is for OAS. | |
5825 | * 3) If the lun is not available by the system, the device data is | |
5826 | * freed. | |
5827 | * | |
5828 | * Return codes: | |
5829 | * false - Error | |
5830 | * true - Success | |
5831 | **/ | |
5832 | bool | |
5833 | lpfc_disable_oas_lun(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn, | |
5834 | struct lpfc_name *target_wwpn, uint64_t lun) | |
5835 | { | |
5836 | ||
5837 | struct lpfc_device_data *lun_info; | |
5838 | unsigned long flags; | |
5839 | ||
5840 | if (unlikely(!phba) || !vport_wwpn || !target_wwpn || | |
f38fa0bb | 5841 | !phba->cfg_fof) |
1ba981fd JS |
5842 | return false; |
5843 | ||
5844 | spin_lock_irqsave(&phba->devicelock, flags); | |
5845 | ||
5846 | /* Check to see if the lun is available. */ | |
5847 | lun_info = __lpfc_get_device_data(phba, | |
5848 | &phba->luns, vport_wwpn, | |
5849 | target_wwpn, lun); | |
5850 | if (lun_info) { | |
5851 | lun_info->oas_enabled = false; | |
5852 | if (!lun_info->available) | |
5853 | lpfc_delete_device_data(phba, lun_info); | |
5854 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5855 | return true; | |
5856 | } | |
5857 | ||
5858 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5859 | return false; | |
5860 | } | |
92d7f7b0 | 5861 | |
ea4142f6 JS |
5862 | struct scsi_host_template lpfc_template_s3 = { |
5863 | .module = THIS_MODULE, | |
5864 | .name = LPFC_DRIVER_NAME, | |
5865 | .info = lpfc_info, | |
5866 | .queuecommand = lpfc_queuecommand, | |
5867 | .eh_abort_handler = lpfc_abort_handler, | |
5868 | .eh_device_reset_handler = lpfc_device_reset_handler, | |
5869 | .eh_target_reset_handler = lpfc_target_reset_handler, | |
5870 | .eh_bus_reset_handler = lpfc_bus_reset_handler, | |
5871 | .slave_alloc = lpfc_slave_alloc, | |
5872 | .slave_configure = lpfc_slave_configure, | |
5873 | .slave_destroy = lpfc_slave_destroy, | |
5874 | .scan_finished = lpfc_scan_finished, | |
5875 | .this_id = -1, | |
5876 | .sg_tablesize = LPFC_DEFAULT_SG_SEG_CNT, | |
5877 | .cmd_per_lun = LPFC_CMD_PER_LUN, | |
5878 | .use_clustering = ENABLE_CLUSTERING, | |
5879 | .shost_attrs = lpfc_hba_attrs, | |
5880 | .max_sectors = 0xFFFF, | |
5881 | .vendor_id = LPFC_NL_VENDOR_ID, | |
5882 | .change_queue_depth = scsi_change_queue_depth, | |
5883 | .use_blk_tags = 1, | |
5884 | .track_queue_depth = 1, | |
5885 | }; | |
5886 | ||
dea3101e | 5887 | struct scsi_host_template lpfc_template = { |
5888 | .module = THIS_MODULE, | |
5889 | .name = LPFC_DRIVER_NAME, | |
5890 | .info = lpfc_info, | |
5891 | .queuecommand = lpfc_queuecommand, | |
5892 | .eh_abort_handler = lpfc_abort_handler, | |
bbb9d180 JS |
5893 | .eh_device_reset_handler = lpfc_device_reset_handler, |
5894 | .eh_target_reset_handler = lpfc_target_reset_handler, | |
7054a606 | 5895 | .eh_bus_reset_handler = lpfc_bus_reset_handler, |
27b01b82 | 5896 | .eh_host_reset_handler = lpfc_host_reset_handler, |
dea3101e | 5897 | .slave_alloc = lpfc_slave_alloc, |
5898 | .slave_configure = lpfc_slave_configure, | |
5899 | .slave_destroy = lpfc_slave_destroy, | |
47a8617c | 5900 | .scan_finished = lpfc_scan_finished, |
dea3101e | 5901 | .this_id = -1, |
83108bd3 | 5902 | .sg_tablesize = LPFC_DEFAULT_SG_SEG_CNT, |
dea3101e | 5903 | .cmd_per_lun = LPFC_CMD_PER_LUN, |
5904 | .use_clustering = ENABLE_CLUSTERING, | |
2e0fef85 | 5905 | .shost_attrs = lpfc_hba_attrs, |
564b2960 | 5906 | .max_sectors = 0xFFFF, |
f1c3b0fc | 5907 | .vendor_id = LPFC_NL_VENDOR_ID, |
db5ed4df | 5908 | .change_queue_depth = scsi_change_queue_depth, |
2ecb204d | 5909 | .use_blk_tags = 1, |
c40ecc12 | 5910 | .track_queue_depth = 1, |
dea3101e | 5911 | }; |
3de2a653 JS |
5912 | |
5913 | struct scsi_host_template lpfc_vport_template = { | |
5914 | .module = THIS_MODULE, | |
5915 | .name = LPFC_DRIVER_NAME, | |
5916 | .info = lpfc_info, | |
5917 | .queuecommand = lpfc_queuecommand, | |
5918 | .eh_abort_handler = lpfc_abort_handler, | |
bbb9d180 JS |
5919 | .eh_device_reset_handler = lpfc_device_reset_handler, |
5920 | .eh_target_reset_handler = lpfc_target_reset_handler, | |
3de2a653 JS |
5921 | .eh_bus_reset_handler = lpfc_bus_reset_handler, |
5922 | .slave_alloc = lpfc_slave_alloc, | |
5923 | .slave_configure = lpfc_slave_configure, | |
5924 | .slave_destroy = lpfc_slave_destroy, | |
5925 | .scan_finished = lpfc_scan_finished, | |
5926 | .this_id = -1, | |
83108bd3 | 5927 | .sg_tablesize = LPFC_DEFAULT_SG_SEG_CNT, |
3de2a653 JS |
5928 | .cmd_per_lun = LPFC_CMD_PER_LUN, |
5929 | .use_clustering = ENABLE_CLUSTERING, | |
5930 | .shost_attrs = lpfc_vport_attrs, | |
5931 | .max_sectors = 0xFFFF, | |
db5ed4df | 5932 | .change_queue_depth = scsi_change_queue_depth, |
2ecb204d | 5933 | .use_blk_tags = 1, |
c40ecc12 | 5934 | .track_queue_depth = 1, |
3de2a653 | 5935 | }; |