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d85296cf | 1 | /******************************************************************* |
dea3101e | 2 | * This file is part of the Emulex Linux Device Driver for * |
c44ce173 | 3 | * Fibre Channel Host Bus Adapters. * |
67073c69 JS |
4 | * Copyright (C) 2017-2021 Broadcom. All Rights Reserved. The term * |
5 | * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * | |
51f4ca3c | 6 | * Copyright (C) 2004-2016 Emulex. All rights reserved. * |
c44ce173 | 7 | * EMULEX and SLI are trademarks of Emulex. * |
d080abe0 | 8 | * www.broadcom.com * |
c44ce173 | 9 | * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
dea3101e JB |
10 | * * |
11 | * This program is free software; you can redistribute it and/or * | |
c44ce173 JSEC |
12 | * modify it under the terms of version 2 of the GNU General * |
13 | * Public License as published by the Free Software Foundation. * | |
14 | * This program is distributed in the hope that it will be useful. * | |
15 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * | |
16 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * | |
17 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * | |
18 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * | |
19 | * TO BE LEGALLY INVALID. See the GNU General Public License for * | |
20 | * more details, a copy of which can be found in the file COPYING * | |
21 | * included with this package. * | |
dea3101e | 22 | *******************************************************************/ |
dea3101e | 23 | #include <linux/pci.h> |
5a0e3ad6 | 24 | #include <linux/slab.h> |
dea3101e | 25 | #include <linux/interrupt.h> |
09703660 | 26 | #include <linux/export.h> |
a90f5684 | 27 | #include <linux/delay.h> |
e2a0a9d6 | 28 | #include <asm/unaligned.h> |
128b6f9f | 29 | #include <linux/t10-pi.h> |
737d4248 | 30 | #include <linux/crc-t10dif.h> |
dc50715e | 31 | #include <linux/blk-cgroup.h> |
737d4248 | 32 | #include <net/checksum.h> |
dea3101e JB |
33 | |
34 | #include <scsi/scsi.h> | |
35 | #include <scsi/scsi_device.h> | |
e2a0a9d6 | 36 | #include <scsi/scsi_eh.h> |
dea3101e JB |
37 | #include <scsi/scsi_host.h> |
38 | #include <scsi/scsi_tcq.h> | |
39 | #include <scsi/scsi_transport_fc.h> | |
40 | ||
41 | #include "lpfc_version.h" | |
da0436e9 | 42 | #include "lpfc_hw4.h" |
dea3101e JB |
43 | #include "lpfc_hw.h" |
44 | #include "lpfc_sli.h" | |
da0436e9 | 45 | #include "lpfc_sli4.h" |
ea2151b4 | 46 | #include "lpfc_nl.h" |
dea3101e | 47 | #include "lpfc_disc.h" |
dea3101e | 48 | #include "lpfc.h" |
9a6b09c0 | 49 | #include "lpfc_scsi.h" |
dea3101e JB |
50 | #include "lpfc_logmsg.h" |
51 | #include "lpfc_crtn.h" | |
92d7f7b0 | 52 | #include "lpfc_vport.h" |
dea3101e JB |
53 | |
54 | #define LPFC_RESET_WAIT 2 | |
55 | #define LPFC_ABORT_WAIT 2 | |
56 | ||
e2a0a9d6 | 57 | static char *dif_op_str[] = { |
9a6b09c0 JS |
58 | "PROT_NORMAL", |
59 | "PROT_READ_INSERT", | |
60 | "PROT_WRITE_STRIP", | |
61 | "PROT_READ_STRIP", | |
62 | "PROT_WRITE_INSERT", | |
63 | "PROT_READ_PASS", | |
64 | "PROT_WRITE_PASS", | |
65 | }; | |
66 | ||
f9bb2da1 JS |
67 | struct scsi_dif_tuple { |
68 | __be16 guard_tag; /* Checksum */ | |
69 | __be16 app_tag; /* Opaque storage */ | |
70 | __be32 ref_tag; /* Target LBA or indirect LBA */ | |
71 | }; | |
72 | ||
1ba981fd JS |
73 | static struct lpfc_rport_data * |
74 | lpfc_rport_data_from_scsi_device(struct scsi_device *sdev) | |
75 | { | |
76 | struct lpfc_vport *vport = (struct lpfc_vport *)sdev->host->hostdata; | |
77 | ||
f38fa0bb | 78 | if (vport->phba->cfg_fof) |
1ba981fd JS |
79 | return ((struct lpfc_device_data *)sdev->hostdata)->rport_data; |
80 | else | |
81 | return (struct lpfc_rport_data *)sdev->hostdata; | |
82 | } | |
83 | ||
da0436e9 | 84 | static void |
c490850a | 85 | lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_io_buf *psb); |
1c6f4ef5 | 86 | static void |
c490850a | 87 | lpfc_release_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_io_buf *psb); |
9c6aa9d7 JS |
88 | static int |
89 | lpfc_prot_group_type(struct lpfc_hba *phba, struct scsi_cmnd *sc); | |
dc50715e GS |
90 | static void |
91 | lpfc_put_vmid_in_hashtable(struct lpfc_vport *vport, u32 hash, | |
92 | struct lpfc_vmid *vmp); | |
93 | static void lpfc_vmid_update_entry(struct lpfc_vport *vport, struct scsi_cmnd | |
94 | *cmd, struct lpfc_vmid *vmp, | |
95 | union lpfc_vmid_io_tag *tag); | |
96 | static void lpfc_vmid_assign_cs_ctl(struct lpfc_vport *vport, | |
97 | struct lpfc_vmid *vmid); | |
e2a0a9d6 | 98 | |
f1126688 JS |
99 | /** |
100 | * lpfc_sli4_set_rsp_sgl_last - Set the last bit in the response sge. | |
101 | * @phba: Pointer to HBA object. | |
102 | * @lpfc_cmd: lpfc scsi command object pointer. | |
103 | * | |
104 | * This function is called from the lpfc_prep_task_mgmt_cmd function to | |
105 | * set the last bit in the response sge entry. | |
106 | **/ | |
107 | static void | |
108 | lpfc_sli4_set_rsp_sgl_last(struct lpfc_hba *phba, | |
c490850a | 109 | struct lpfc_io_buf *lpfc_cmd) |
f1126688 | 110 | { |
0794d601 | 111 | struct sli4_sge *sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl; |
f1126688 JS |
112 | if (sgl) { |
113 | sgl += 1; | |
114 | sgl->word2 = le32_to_cpu(sgl->word2); | |
115 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
116 | sgl->word2 = cpu_to_le32(sgl->word2); | |
117 | } | |
118 | } | |
119 | ||
68a6a66c JS |
120 | #define LPFC_INVALID_REFTAG ((u32)-1) |
121 | ||
ea2151b4 | 122 | /** |
3621a710 | 123 | * lpfc_update_stats - Update statistical data for the command completion |
9df0a038 | 124 | * @vport: The virtual port on which this call is executing. |
ea2151b4 JS |
125 | * @lpfc_cmd: lpfc scsi command object pointer. |
126 | * | |
127 | * This function is called when there is a command completion and this | |
128 | * function updates the statistical data for the command completion. | |
129 | **/ | |
130 | static void | |
9df0a038 | 131 | lpfc_update_stats(struct lpfc_vport *vport, struct lpfc_io_buf *lpfc_cmd) |
ea2151b4 | 132 | { |
9df0a038 | 133 | struct lpfc_hba *phba = vport->phba; |
18027a8c JS |
134 | struct lpfc_rport_data *rdata; |
135 | struct lpfc_nodelist *pnode; | |
ea2151b4 JS |
136 | struct scsi_cmnd *cmd = lpfc_cmd->pCmd; |
137 | unsigned long flags; | |
9df0a038 | 138 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
ea2151b4 JS |
139 | unsigned long latency; |
140 | int i; | |
141 | ||
18027a8c JS |
142 | if (!vport->stat_data_enabled || |
143 | vport->stat_data_blocked || | |
144 | (cmd->result)) | |
ea2151b4 JS |
145 | return; |
146 | ||
9f1e1b50 | 147 | latency = jiffies_to_msecs((long)jiffies - (long)lpfc_cmd->start_time); |
18027a8c JS |
148 | rdata = lpfc_cmd->rdata; |
149 | pnode = rdata->pnode; | |
9f1e1b50 | 150 | |
ea2151b4 | 151 | spin_lock_irqsave(shost->host_lock, flags); |
18027a8c JS |
152 | if (!pnode || |
153 | !pnode->lat_data || | |
154 | (phba->bucket_type == LPFC_NO_BUCKET)) { | |
ea2151b4 JS |
155 | spin_unlock_irqrestore(shost->host_lock, flags); |
156 | return; | |
157 | } | |
ea2151b4 JS |
158 | |
159 | if (phba->bucket_type == LPFC_LINEAR_BUCKET) { | |
160 | i = (latency + phba->bucket_step - 1 - phba->bucket_base)/ | |
161 | phba->bucket_step; | |
9f1e1b50 JS |
162 | /* check array subscript bounds */ |
163 | if (i < 0) | |
164 | i = 0; | |
165 | else if (i >= LPFC_MAX_BUCKET_COUNT) | |
166 | i = LPFC_MAX_BUCKET_COUNT - 1; | |
ea2151b4 JS |
167 | } else { |
168 | for (i = 0; i < LPFC_MAX_BUCKET_COUNT-1; i++) | |
169 | if (latency <= (phba->bucket_base + | |
170 | ((1<<i)*phba->bucket_step))) | |
171 | break; | |
172 | } | |
173 | ||
174 | pnode->lat_data[i].cmd_count++; | |
175 | spin_unlock_irqrestore(shost->host_lock, flags); | |
176 | } | |
177 | ||
9bad7671 | 178 | /** |
3621a710 | 179 | * lpfc_rampdown_queue_depth - Post RAMP_DOWN_QUEUE event to worker thread |
9bad7671 JS |
180 | * @phba: The Hba for which this call is being executed. |
181 | * | |
182 | * This routine is called when there is resource error in driver or firmware. | |
183 | * This routine posts WORKER_RAMP_DOWN_QUEUE event for @phba. This routine | |
184 | * posts at most 1 event each second. This routine wakes up worker thread of | |
185 | * @phba to process WORKER_RAM_DOWN_EVENT event. | |
186 | * | |
187 | * This routine should be called with no lock held. | |
188 | **/ | |
92d7f7b0 | 189 | void |
eaf15d5b | 190 | lpfc_rampdown_queue_depth(struct lpfc_hba *phba) |
92d7f7b0 JS |
191 | { |
192 | unsigned long flags; | |
5e9d9b82 | 193 | uint32_t evt_posted; |
0d4aec13 | 194 | unsigned long expires; |
92d7f7b0 JS |
195 | |
196 | spin_lock_irqsave(&phba->hbalock, flags); | |
197 | atomic_inc(&phba->num_rsrc_err); | |
198 | phba->last_rsrc_error_time = jiffies; | |
199 | ||
0d4aec13 MS |
200 | expires = phba->last_ramp_down_time + QUEUE_RAMP_DOWN_INTERVAL; |
201 | if (time_after(expires, jiffies)) { | |
92d7f7b0 JS |
202 | spin_unlock_irqrestore(&phba->hbalock, flags); |
203 | return; | |
204 | } | |
205 | ||
206 | phba->last_ramp_down_time = jiffies; | |
207 | ||
208 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
209 | ||
210 | spin_lock_irqsave(&phba->pport->work_port_lock, flags); | |
5e9d9b82 JS |
211 | evt_posted = phba->pport->work_port_events & WORKER_RAMP_DOWN_QUEUE; |
212 | if (!evt_posted) | |
92d7f7b0 | 213 | phba->pport->work_port_events |= WORKER_RAMP_DOWN_QUEUE; |
92d7f7b0 JS |
214 | spin_unlock_irqrestore(&phba->pport->work_port_lock, flags); |
215 | ||
5e9d9b82 JS |
216 | if (!evt_posted) |
217 | lpfc_worker_wake_up(phba); | |
92d7f7b0 JS |
218 | return; |
219 | } | |
220 | ||
9bad7671 | 221 | /** |
3621a710 | 222 | * lpfc_ramp_down_queue_handler - WORKER_RAMP_DOWN_QUEUE event handler |
9bad7671 JS |
223 | * @phba: The Hba for which this call is being executed. |
224 | * | |
225 | * This routine is called to process WORKER_RAMP_DOWN_QUEUE event for worker | |
226 | * thread.This routine reduces queue depth for all scsi device on each vport | |
227 | * associated with @phba. | |
228 | **/ | |
92d7f7b0 JS |
229 | void |
230 | lpfc_ramp_down_queue_handler(struct lpfc_hba *phba) | |
231 | { | |
549e55cd JS |
232 | struct lpfc_vport **vports; |
233 | struct Scsi_Host *shost; | |
92d7f7b0 | 234 | struct scsi_device *sdev; |
5ffc266e | 235 | unsigned long new_queue_depth; |
92d7f7b0 | 236 | unsigned long num_rsrc_err, num_cmd_success; |
549e55cd | 237 | int i; |
92d7f7b0 JS |
238 | |
239 | num_rsrc_err = atomic_read(&phba->num_rsrc_err); | |
240 | num_cmd_success = atomic_read(&phba->num_cmd_success); | |
241 | ||
75ad83a4 JS |
242 | /* |
243 | * The error and success command counters are global per | |
244 | * driver instance. If another handler has already | |
245 | * operated on this error event, just exit. | |
246 | */ | |
247 | if (num_rsrc_err == 0) | |
248 | return; | |
249 | ||
549e55cd JS |
250 | vports = lpfc_create_vport_work_array(phba); |
251 | if (vports != NULL) | |
21e9a0a5 | 252 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
549e55cd JS |
253 | shost = lpfc_shost_from_vport(vports[i]); |
254 | shost_for_each_device(sdev, shost) { | |
92d7f7b0 | 255 | new_queue_depth = |
549e55cd JS |
256 | sdev->queue_depth * num_rsrc_err / |
257 | (num_rsrc_err + num_cmd_success); | |
258 | if (!new_queue_depth) | |
259 | new_queue_depth = sdev->queue_depth - 1; | |
260 | else | |
261 | new_queue_depth = sdev->queue_depth - | |
262 | new_queue_depth; | |
db5ed4df | 263 | scsi_change_queue_depth(sdev, new_queue_depth); |
549e55cd | 264 | } |
92d7f7b0 | 265 | } |
09372820 | 266 | lpfc_destroy_vport_work_array(phba, vports); |
92d7f7b0 JS |
267 | atomic_set(&phba->num_rsrc_err, 0); |
268 | atomic_set(&phba->num_cmd_success, 0); | |
269 | } | |
270 | ||
a8e497d5 | 271 | /** |
3621a710 | 272 | * lpfc_scsi_dev_block - set all scsi hosts to block state |
a8e497d5 JS |
273 | * @phba: Pointer to HBA context object. |
274 | * | |
275 | * This function walks vport list and set each SCSI host to block state | |
276 | * by invoking fc_remote_port_delete() routine. This function is invoked | |
277 | * with EEH when device's PCI slot has been permanently disabled. | |
278 | **/ | |
279 | void | |
280 | lpfc_scsi_dev_block(struct lpfc_hba *phba) | |
281 | { | |
282 | struct lpfc_vport **vports; | |
283 | struct Scsi_Host *shost; | |
284 | struct scsi_device *sdev; | |
285 | struct fc_rport *rport; | |
286 | int i; | |
287 | ||
288 | vports = lpfc_create_vport_work_array(phba); | |
289 | if (vports != NULL) | |
21e9a0a5 | 290 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
a8e497d5 JS |
291 | shost = lpfc_shost_from_vport(vports[i]); |
292 | shost_for_each_device(sdev, shost) { | |
293 | rport = starget_to_rport(scsi_target(sdev)); | |
294 | fc_remote_port_delete(rport); | |
295 | } | |
296 | } | |
297 | lpfc_destroy_vport_work_array(phba, vports); | |
298 | } | |
299 | ||
9bad7671 | 300 | /** |
3772a991 | 301 | * lpfc_new_scsi_buf_s3 - Scsi buffer allocator for HBA with SLI3 IF spec |
9bad7671 | 302 | * @vport: The virtual port for which this call being executed. |
eceee00e | 303 | * @num_to_alloc: The requested number of buffers to allocate. |
9bad7671 | 304 | * |
3772a991 JS |
305 | * This routine allocates a scsi buffer for device with SLI-3 interface spec, |
306 | * the scsi buffer contains all the necessary information needed to initiate | |
307 | * a SCSI I/O. The non-DMAable buffer region contains information to build | |
308 | * the IOCB. The DMAable region contains memory for the FCP CMND, FCP RSP, | |
309 | * and the initial BPL. In addition to allocating memory, the FCP CMND and | |
310 | * FCP RSP BDEs are setup in the BPL and the BPL BDE is setup in the IOCB. | |
9bad7671 JS |
311 | * |
312 | * Return codes: | |
3772a991 JS |
313 | * int - number of scsi buffers that were allocated. |
314 | * 0 = failure, less than num_to_alloc is a partial failure. | |
9bad7671 | 315 | **/ |
3772a991 JS |
316 | static int |
317 | lpfc_new_scsi_buf_s3(struct lpfc_vport *vport, int num_to_alloc) | |
dea3101e | 318 | { |
2e0fef85 | 319 | struct lpfc_hba *phba = vport->phba; |
c490850a | 320 | struct lpfc_io_buf *psb; |
dea3101e JB |
321 | struct ulp_bde64 *bpl; |
322 | IOCB_t *iocb; | |
34b02dcd JS |
323 | dma_addr_t pdma_phys_fcp_cmd; |
324 | dma_addr_t pdma_phys_fcp_rsp; | |
0794d601 | 325 | dma_addr_t pdma_phys_sgl; |
604a3e30 | 326 | uint16_t iotag; |
96f7077f JS |
327 | int bcnt, bpl_size; |
328 | ||
329 | bpl_size = phba->cfg_sg_dma_buf_size - | |
330 | (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp)); | |
331 | ||
332 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
333 | "9067 ALLOC %d scsi_bufs: %d (%d + %d + %d)\n", | |
334 | num_to_alloc, phba->cfg_sg_dma_buf_size, | |
335 | (int)sizeof(struct fcp_cmnd), | |
336 | (int)sizeof(struct fcp_rsp), bpl_size); | |
dea3101e | 337 | |
3772a991 | 338 | for (bcnt = 0; bcnt < num_to_alloc; bcnt++) { |
c490850a | 339 | psb = kzalloc(sizeof(struct lpfc_io_buf), GFP_KERNEL); |
3772a991 JS |
340 | if (!psb) |
341 | break; | |
dea3101e | 342 | |
3772a991 JS |
343 | /* |
344 | * Get memory from the pci pool to map the virt space to pci | |
345 | * bus space for an I/O. The DMA buffer includes space for the | |
346 | * struct fcp_cmnd, struct fcp_rsp and the number of bde's | |
347 | * necessary to support the sg_tablesize. | |
348 | */ | |
771db5c0 | 349 | psb->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool, |
3772a991 JS |
350 | GFP_KERNEL, &psb->dma_handle); |
351 | if (!psb->data) { | |
352 | kfree(psb); | |
353 | break; | |
354 | } | |
355 | ||
3772a991 JS |
356 | |
357 | /* Allocate iotag for psb->cur_iocbq. */ | |
358 | iotag = lpfc_sli_next_iotag(phba, &psb->cur_iocbq); | |
359 | if (iotag == 0) { | |
771db5c0 | 360 | dma_pool_free(phba->lpfc_sg_dma_buf_pool, |
895427bd | 361 | psb->data, psb->dma_handle); |
3772a991 JS |
362 | kfree(psb); |
363 | break; | |
364 | } | |
365 | psb->cur_iocbq.iocb_flag |= LPFC_IO_FCP; | |
366 | ||
367 | psb->fcp_cmnd = psb->data; | |
368 | psb->fcp_rsp = psb->data + sizeof(struct fcp_cmnd); | |
0794d601 | 369 | psb->dma_sgl = psb->data + sizeof(struct fcp_cmnd) + |
34b02dcd | 370 | sizeof(struct fcp_rsp); |
dea3101e | 371 | |
3772a991 | 372 | /* Initialize local short-hand pointers. */ |
c490850a | 373 | bpl = (struct ulp_bde64 *)psb->dma_sgl; |
3772a991 JS |
374 | pdma_phys_fcp_cmd = psb->dma_handle; |
375 | pdma_phys_fcp_rsp = psb->dma_handle + sizeof(struct fcp_cmnd); | |
0794d601 | 376 | pdma_phys_sgl = psb->dma_handle + sizeof(struct fcp_cmnd) + |
3772a991 JS |
377 | sizeof(struct fcp_rsp); |
378 | ||
379 | /* | |
380 | * The first two bdes are the FCP_CMD and FCP_RSP. The balance | |
381 | * are sg list bdes. Initialize the first two and leave the | |
382 | * rest for queuecommand. | |
383 | */ | |
384 | bpl[0].addrHigh = le32_to_cpu(putPaddrHigh(pdma_phys_fcp_cmd)); | |
385 | bpl[0].addrLow = le32_to_cpu(putPaddrLow(pdma_phys_fcp_cmd)); | |
386 | bpl[0].tus.f.bdeSize = sizeof(struct fcp_cmnd); | |
387 | bpl[0].tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
388 | bpl[0].tus.w = le32_to_cpu(bpl[0].tus.w); | |
389 | ||
390 | /* Setup the physical region for the FCP RSP */ | |
391 | bpl[1].addrHigh = le32_to_cpu(putPaddrHigh(pdma_phys_fcp_rsp)); | |
392 | bpl[1].addrLow = le32_to_cpu(putPaddrLow(pdma_phys_fcp_rsp)); | |
393 | bpl[1].tus.f.bdeSize = sizeof(struct fcp_rsp); | |
394 | bpl[1].tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
395 | bpl[1].tus.w = le32_to_cpu(bpl[1].tus.w); | |
396 | ||
397 | /* | |
398 | * Since the IOCB for the FCP I/O is built into this | |
399 | * lpfc_scsi_buf, initialize it with all known data now. | |
400 | */ | |
401 | iocb = &psb->cur_iocbq.iocb; | |
402 | iocb->un.fcpi64.bdl.ulpIoTag32 = 0; | |
403 | if ((phba->sli_rev == 3) && | |
404 | !(phba->sli3_options & LPFC_SLI3_BG_ENABLED)) { | |
405 | /* fill in immediate fcp command BDE */ | |
406 | iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BDE_IMMED; | |
407 | iocb->un.fcpi64.bdl.bdeSize = sizeof(struct fcp_cmnd); | |
408 | iocb->un.fcpi64.bdl.addrLow = offsetof(IOCB_t, | |
409 | unsli3.fcp_ext.icd); | |
410 | iocb->un.fcpi64.bdl.addrHigh = 0; | |
411 | iocb->ulpBdeCount = 0; | |
412 | iocb->ulpLe = 0; | |
25985edc | 413 | /* fill in response BDE */ |
3772a991 JS |
414 | iocb->unsli3.fcp_ext.rbde.tus.f.bdeFlags = |
415 | BUFF_TYPE_BDE_64; | |
416 | iocb->unsli3.fcp_ext.rbde.tus.f.bdeSize = | |
417 | sizeof(struct fcp_rsp); | |
418 | iocb->unsli3.fcp_ext.rbde.addrLow = | |
419 | putPaddrLow(pdma_phys_fcp_rsp); | |
420 | iocb->unsli3.fcp_ext.rbde.addrHigh = | |
421 | putPaddrHigh(pdma_phys_fcp_rsp); | |
422 | } else { | |
423 | iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
424 | iocb->un.fcpi64.bdl.bdeSize = | |
425 | (2 * sizeof(struct ulp_bde64)); | |
426 | iocb->un.fcpi64.bdl.addrLow = | |
0794d601 | 427 | putPaddrLow(pdma_phys_sgl); |
3772a991 | 428 | iocb->un.fcpi64.bdl.addrHigh = |
0794d601 | 429 | putPaddrHigh(pdma_phys_sgl); |
3772a991 JS |
430 | iocb->ulpBdeCount = 1; |
431 | iocb->ulpLe = 1; | |
432 | } | |
433 | iocb->ulpClass = CLASS3; | |
434 | psb->status = IOSTAT_SUCCESS; | |
da0436e9 | 435 | /* Put it back into the SCSI buffer list */ |
eee8877e | 436 | psb->cur_iocbq.context1 = psb; |
c2017260 | 437 | spin_lock_init(&psb->buf_lock); |
1c6f4ef5 | 438 | lpfc_release_scsi_buf_s3(phba, psb); |
dea3101e | 439 | |
34b02dcd | 440 | } |
dea3101e | 441 | |
3772a991 | 442 | return bcnt; |
dea3101e JB |
443 | } |
444 | ||
1151e3ec JS |
445 | /** |
446 | * lpfc_sli4_vport_delete_fcp_xri_aborted -Remove all ndlp references for vport | |
447 | * @vport: pointer to lpfc vport data structure. | |
448 | * | |
449 | * This routine is invoked by the vport cleanup for deletions and the cleanup | |
450 | * for an ndlp on removal. | |
451 | **/ | |
452 | void | |
453 | lpfc_sli4_vport_delete_fcp_xri_aborted(struct lpfc_vport *vport) | |
454 | { | |
455 | struct lpfc_hba *phba = vport->phba; | |
c490850a | 456 | struct lpfc_io_buf *psb, *next_psb; |
5e5b511d | 457 | struct lpfc_sli4_hdw_queue *qp; |
1151e3ec | 458 | unsigned long iflag = 0; |
5e5b511d | 459 | int idx; |
1151e3ec | 460 | |
f6e84790 | 461 | if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) |
895427bd | 462 | return; |
5e5b511d | 463 | |
1151e3ec | 464 | spin_lock_irqsave(&phba->hbalock, iflag); |
5e5b511d JS |
465 | for (idx = 0; idx < phba->cfg_hdw_queue; idx++) { |
466 | qp = &phba->sli4_hba.hdwq[idx]; | |
467 | ||
c00f62e6 | 468 | spin_lock(&qp->abts_io_buf_list_lock); |
5e5b511d | 469 | list_for_each_entry_safe(psb, next_psb, |
c00f62e6 | 470 | &qp->lpfc_abts_io_buf_list, list) { |
c438d062 | 471 | if (psb->cur_iocbq.iocb_flag & LPFC_IO_NVME) |
c00f62e6 JS |
472 | continue; |
473 | ||
5e5b511d JS |
474 | if (psb->rdata && psb->rdata->pnode && |
475 | psb->rdata->pnode->vport == vport) | |
476 | psb->rdata = NULL; | |
477 | } | |
c00f62e6 | 478 | spin_unlock(&qp->abts_io_buf_list_lock); |
1151e3ec | 479 | } |
1151e3ec JS |
480 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
481 | } | |
482 | ||
da0436e9 | 483 | /** |
c00f62e6 | 484 | * lpfc_sli4_io_xri_aborted - Fast-path process of fcp xri abort |
da0436e9 JS |
485 | * @phba: pointer to lpfc hba data structure. |
486 | * @axri: pointer to the fcp xri abort wcqe structure. | |
eceee00e | 487 | * @idx: index into hdwq |
da0436e9 JS |
488 | * |
489 | * This routine is invoked by the worker thread to process a SLI4 fast-path | |
c00f62e6 | 490 | * FCP or NVME aborted xri. |
da0436e9 JS |
491 | **/ |
492 | void | |
c00f62e6 JS |
493 | lpfc_sli4_io_xri_aborted(struct lpfc_hba *phba, |
494 | struct sli4_wcqe_xri_aborted *axri, int idx) | |
da0436e9 | 495 | { |
8e176fe2 JS |
496 | u16 xri = 0; |
497 | u16 rxid = 0; | |
c490850a | 498 | struct lpfc_io_buf *psb, *next_psb; |
5e5b511d | 499 | struct lpfc_sli4_hdw_queue *qp; |
da0436e9 | 500 | unsigned long iflag = 0; |
0f65ff68 JS |
501 | struct lpfc_iocbq *iocbq; |
502 | int i; | |
19ca7609 JS |
503 | struct lpfc_nodelist *ndlp; |
504 | int rrq_empty = 0; | |
895427bd | 505 | struct lpfc_sli_ring *pring = phba->sli4_hba.els_wq->pring; |
3e49af93 | 506 | struct scsi_cmnd *cmd; |
8e176fe2 | 507 | int offline = 0; |
da0436e9 | 508 | |
895427bd JS |
509 | if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) |
510 | return; | |
8e176fe2 JS |
511 | offline = pci_channel_offline(phba->pcidev); |
512 | if (!offline) { | |
513 | xri = bf_get(lpfc_wcqe_xa_xri, axri); | |
514 | rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri); | |
515 | } | |
5e5b511d | 516 | qp = &phba->sli4_hba.hdwq[idx]; |
0f65ff68 | 517 | spin_lock_irqsave(&phba->hbalock, iflag); |
c00f62e6 | 518 | spin_lock(&qp->abts_io_buf_list_lock); |
da0436e9 | 519 | list_for_each_entry_safe(psb, next_psb, |
c00f62e6 | 520 | &qp->lpfc_abts_io_buf_list, list) { |
8e176fe2 JS |
521 | if (offline) |
522 | xri = psb->cur_iocbq.sli4_xritag; | |
da0436e9 | 523 | if (psb->cur_iocbq.sli4_xritag == xri) { |
c00f62e6 | 524 | list_del_init(&psb->list); |
324e1c40 | 525 | psb->flags &= ~LPFC_SBUF_XBUSY; |
da0436e9 | 526 | psb->status = IOSTAT_SUCCESS; |
c438d062 | 527 | if (psb->cur_iocbq.iocb_flag & LPFC_IO_NVME) { |
c00f62e6 JS |
528 | qp->abts_nvme_io_bufs--; |
529 | spin_unlock(&qp->abts_io_buf_list_lock); | |
530 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
8e176fe2 JS |
531 | if (!offline) { |
532 | lpfc_sli4_nvme_xri_aborted(phba, axri, | |
533 | psb); | |
534 | return; | |
535 | } | |
536 | lpfc_sli4_nvme_pci_offline_aborted(phba, psb); | |
537 | spin_lock_irqsave(&phba->hbalock, iflag); | |
538 | spin_lock(&qp->abts_io_buf_list_lock); | |
539 | continue; | |
c00f62e6 | 540 | } |
c00f62e6 JS |
541 | qp->abts_scsi_io_bufs--; |
542 | spin_unlock(&qp->abts_io_buf_list_lock); | |
543 | ||
1151e3ec JS |
544 | if (psb->rdata && psb->rdata->pnode) |
545 | ndlp = psb->rdata->pnode; | |
546 | else | |
547 | ndlp = NULL; | |
548 | ||
19ca7609 | 549 | rrq_empty = list_empty(&phba->active_rrq_list); |
0f65ff68 | 550 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
8e176fe2 | 551 | if (ndlp && !offline) { |
ee0f4fe1 JS |
552 | lpfc_set_rrq_active(phba, ndlp, |
553 | psb->cur_iocbq.sli4_lxritag, rxid, 1); | |
cb69f7de JS |
554 | lpfc_sli4_abts_err_handler(phba, ndlp, axri); |
555 | } | |
3e49af93 | 556 | |
8e176fe2 | 557 | if (phba->cfg_fcp_wait_abts_rsp || offline) { |
3e49af93 JS |
558 | spin_lock_irqsave(&psb->buf_lock, iflag); |
559 | cmd = psb->pCmd; | |
560 | psb->pCmd = NULL; | |
561 | spin_unlock_irqrestore(&psb->buf_lock, iflag); | |
562 | ||
563 | /* The sdev is not guaranteed to be valid post | |
564 | * scsi_done upcall. | |
565 | */ | |
566 | if (cmd) | |
567 | cmd->scsi_done(cmd); | |
568 | ||
569 | /* | |
570 | * We expect there is an abort thread waiting | |
571 | * for command completion wake up the thread. | |
572 | */ | |
573 | spin_lock_irqsave(&psb->buf_lock, iflag); | |
574 | psb->cur_iocbq.iocb_flag &= | |
575 | ~LPFC_DRIVER_ABORTED; | |
576 | if (psb->waitq) | |
577 | wake_up(psb->waitq); | |
578 | spin_unlock_irqrestore(&psb->buf_lock, iflag); | |
579 | } | |
580 | ||
da0436e9 | 581 | lpfc_release_scsi_buf_s4(phba, psb); |
19ca7609 JS |
582 | if (rrq_empty) |
583 | lpfc_worker_wake_up(phba); | |
8e176fe2 JS |
584 | if (!offline) |
585 | return; | |
586 | spin_lock_irqsave(&phba->hbalock, iflag); | |
587 | spin_lock(&qp->abts_io_buf_list_lock); | |
588 | continue; | |
da0436e9 JS |
589 | } |
590 | } | |
c00f62e6 | 591 | spin_unlock(&qp->abts_io_buf_list_lock); |
8e176fe2 JS |
592 | if (!offline) { |
593 | for (i = 1; i <= phba->sli.last_iotag; i++) { | |
594 | iocbq = phba->sli.iocbq_lookup[i]; | |
0f65ff68 | 595 | |
8e176fe2 JS |
596 | if (!(iocbq->iocb_flag & LPFC_IO_FCP) || |
597 | (iocbq->iocb_flag & LPFC_IO_LIBDFC)) | |
598 | continue; | |
599 | if (iocbq->sli4_xritag != xri) | |
600 | continue; | |
601 | psb = container_of(iocbq, struct lpfc_io_buf, cur_iocbq); | |
602 | psb->flags &= ~LPFC_SBUF_XBUSY; | |
603 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
604 | if (!list_empty(&pring->txq)) | |
605 | lpfc_worker_wake_up(phba); | |
606 | return; | |
607 | } | |
0f65ff68 JS |
608 | } |
609 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
da0436e9 JS |
610 | } |
611 | ||
3772a991 | 612 | /** |
19ca7609 | 613 | * lpfc_get_scsi_buf_s3 - Get a scsi buffer from lpfc_scsi_buf_list of the HBA |
3772a991 | 614 | * @phba: The HBA for which this call is being executed. |
eceee00e LJ |
615 | * @ndlp: pointer to a node-list data structure. |
616 | * @cmnd: Pointer to scsi_cmnd data structure. | |
9bad7671 JS |
617 | * |
618 | * This routine removes a scsi buffer from head of @phba lpfc_scsi_buf_list list | |
619 | * and returns to caller. | |
620 | * | |
621 | * Return codes: | |
622 | * NULL - Error | |
623 | * Pointer to lpfc_scsi_buf - Success | |
624 | **/ | |
c490850a | 625 | static struct lpfc_io_buf * |
ace44e48 JS |
626 | lpfc_get_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, |
627 | struct scsi_cmnd *cmnd) | |
dea3101e | 628 | { |
c490850a | 629 | struct lpfc_io_buf *lpfc_cmd = NULL; |
a40fc5f0 | 630 | struct list_head *scsi_buf_list_get = &phba->lpfc_scsi_buf_list_get; |
164cecd1 | 631 | unsigned long iflag = 0; |
a40fc5f0 | 632 | |
164cecd1 | 633 | spin_lock_irqsave(&phba->scsi_buf_list_get_lock, iflag); |
c490850a | 634 | list_remove_head(scsi_buf_list_get, lpfc_cmd, struct lpfc_io_buf, |
a40fc5f0 JS |
635 | list); |
636 | if (!lpfc_cmd) { | |
164cecd1 | 637 | spin_lock(&phba->scsi_buf_list_put_lock); |
a40fc5f0 JS |
638 | list_splice(&phba->lpfc_scsi_buf_list_put, |
639 | &phba->lpfc_scsi_buf_list_get); | |
640 | INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); | |
641 | list_remove_head(scsi_buf_list_get, lpfc_cmd, | |
c490850a | 642 | struct lpfc_io_buf, list); |
164cecd1 | 643 | spin_unlock(&phba->scsi_buf_list_put_lock); |
1dcb58e5 | 644 | } |
164cecd1 | 645 | spin_unlock_irqrestore(&phba->scsi_buf_list_get_lock, iflag); |
2a5b7d62 JS |
646 | |
647 | if (lpfc_ndlp_check_qdepth(phba, ndlp) && lpfc_cmd) { | |
648 | atomic_inc(&ndlp->cmd_pending); | |
649 | lpfc_cmd->flags |= LPFC_SBUF_BUMP_QDEPTH; | |
650 | } | |
0bd4ca25 JSEC |
651 | return lpfc_cmd; |
652 | } | |
19ca7609 | 653 | /** |
5e5b511d | 654 | * lpfc_get_scsi_buf_s4 - Get a scsi buffer from io_buf_list of the HBA |
19ca7609 | 655 | * @phba: The HBA for which this call is being executed. |
eceee00e LJ |
656 | * @ndlp: pointer to a node-list data structure. |
657 | * @cmnd: Pointer to scsi_cmnd data structure. | |
19ca7609 | 658 | * |
5e5b511d | 659 | * This routine removes a scsi buffer from head of @hdwq io_buf_list |
19ca7609 JS |
660 | * and returns to caller. |
661 | * | |
662 | * Return codes: | |
663 | * NULL - Error | |
664 | * Pointer to lpfc_scsi_buf - Success | |
665 | **/ | |
c490850a | 666 | static struct lpfc_io_buf * |
ace44e48 JS |
667 | lpfc_get_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, |
668 | struct scsi_cmnd *cmnd) | |
19ca7609 | 669 | { |
c490850a | 670 | struct lpfc_io_buf *lpfc_cmd; |
5e5b511d | 671 | struct lpfc_sli4_hdw_queue *qp; |
0794d601 | 672 | struct sli4_sge *sgl; |
0794d601 JS |
673 | dma_addr_t pdma_phys_fcp_rsp; |
674 | dma_addr_t pdma_phys_fcp_cmd; | |
d79c9e9d | 675 | uint32_t cpu, idx; |
ace44e48 | 676 | int tag; |
d79c9e9d | 677 | struct fcp_cmd_rsp_buf *tmp = NULL; |
19ca7609 | 678 | |
d6d189ce | 679 | cpu = raw_smp_processor_id(); |
45aa312e | 680 | if (cmnd && phba->cfg_fcp_io_sched == LPFC_FCP_SCHED_BY_HDWQ) { |
4221c8a4 | 681 | tag = blk_mq_unique_tag(scsi_cmd_to_rq(cmnd)); |
ace44e48 JS |
682 | idx = blk_mq_unique_tag_to_hwq(tag); |
683 | } else { | |
6a828b0f | 684 | idx = phba->sli4_hba.cpu_map[cpu].hdwq; |
ace44e48 | 685 | } |
5e5b511d | 686 | |
c490850a JS |
687 | lpfc_cmd = lpfc_get_io_buf(phba, ndlp, idx, |
688 | !phba->cfg_xri_rebalancing); | |
689 | if (!lpfc_cmd) { | |
690 | qp = &phba->sli4_hba.hdwq[idx]; | |
5e5b511d | 691 | qp->empty_io_bufs++; |
1151e3ec | 692 | return NULL; |
5e5b511d | 693 | } |
2a5b7d62 | 694 | |
0794d601 JS |
695 | /* Setup key fields in buffer that may have been changed |
696 | * if other protocols used this buffer. | |
697 | */ | |
698 | lpfc_cmd->cur_iocbq.iocb_flag = LPFC_IO_FCP; | |
699 | lpfc_cmd->prot_seg_cnt = 0; | |
700 | lpfc_cmd->seg_cnt = 0; | |
0794d601 JS |
701 | lpfc_cmd->timeout = 0; |
702 | lpfc_cmd->flags = 0; | |
703 | lpfc_cmd->start_time = jiffies; | |
704 | lpfc_cmd->waitq = NULL; | |
5e5b511d | 705 | lpfc_cmd->cpu = cpu; |
0794d601 JS |
706 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
707 | lpfc_cmd->prot_data_type = 0; | |
708 | #endif | |
d79c9e9d | 709 | tmp = lpfc_get_cmd_rsp_buf_per_hdwq(phba, lpfc_cmd); |
0ab384a4 JS |
710 | if (!tmp) { |
711 | lpfc_release_io_buf(phba, lpfc_cmd, lpfc_cmd->hdwq); | |
d79c9e9d | 712 | return NULL; |
0ab384a4 | 713 | } |
d79c9e9d JS |
714 | |
715 | lpfc_cmd->fcp_cmnd = tmp->fcp_cmnd; | |
716 | lpfc_cmd->fcp_rsp = tmp->fcp_rsp; | |
0794d601 JS |
717 | |
718 | /* | |
719 | * The first two SGEs are the FCP_CMD and FCP_RSP. | |
720 | * The balance are sg list bdes. Initialize the | |
721 | * first two and leave the rest for queuecommand. | |
722 | */ | |
723 | sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl; | |
d79c9e9d | 724 | pdma_phys_fcp_cmd = tmp->fcp_cmd_rsp_dma_handle; |
0794d601 JS |
725 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(pdma_phys_fcp_cmd)); |
726 | sgl->addr_lo = cpu_to_le32(putPaddrLow(pdma_phys_fcp_cmd)); | |
727 | sgl->word2 = le32_to_cpu(sgl->word2); | |
728 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
729 | sgl->word2 = cpu_to_le32(sgl->word2); | |
730 | sgl->sge_len = cpu_to_le32(sizeof(struct fcp_cmnd)); | |
731 | sgl++; | |
732 | ||
733 | /* Setup the physical region for the FCP RSP */ | |
734 | pdma_phys_fcp_rsp = pdma_phys_fcp_cmd + sizeof(struct fcp_cmnd); | |
735 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(pdma_phys_fcp_rsp)); | |
736 | sgl->addr_lo = cpu_to_le32(putPaddrLow(pdma_phys_fcp_rsp)); | |
737 | sgl->word2 = le32_to_cpu(sgl->word2); | |
738 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
739 | sgl->word2 = cpu_to_le32(sgl->word2); | |
740 | sgl->sge_len = cpu_to_le32(sizeof(struct fcp_rsp)); | |
741 | ||
26c724a6 | 742 | if (lpfc_ndlp_check_qdepth(phba, ndlp)) { |
2a5b7d62 JS |
743 | atomic_inc(&ndlp->cmd_pending); |
744 | lpfc_cmd->flags |= LPFC_SBUF_BUMP_QDEPTH; | |
745 | } | |
a40fc5f0 | 746 | return lpfc_cmd; |
19ca7609 JS |
747 | } |
748 | /** | |
749 | * lpfc_get_scsi_buf - Get a scsi buffer from lpfc_scsi_buf_list of the HBA | |
750 | * @phba: The HBA for which this call is being executed. | |
eceee00e LJ |
751 | * @ndlp: pointer to a node-list data structure. |
752 | * @cmnd: Pointer to scsi_cmnd data structure. | |
19ca7609 JS |
753 | * |
754 | * This routine removes a scsi buffer from head of @phba lpfc_scsi_buf_list list | |
755 | * and returns to caller. | |
756 | * | |
757 | * Return codes: | |
758 | * NULL - Error | |
759 | * Pointer to lpfc_scsi_buf - Success | |
760 | **/ | |
c490850a | 761 | static struct lpfc_io_buf* |
ace44e48 JS |
762 | lpfc_get_scsi_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, |
763 | struct scsi_cmnd *cmnd) | |
19ca7609 | 764 | { |
ace44e48 | 765 | return phba->lpfc_get_scsi_buf(phba, ndlp, cmnd); |
19ca7609 | 766 | } |
dea3101e | 767 | |
9bad7671 | 768 | /** |
0bb87e01 | 769 | * lpfc_release_scsi_buf_s3 - Return a scsi buffer back to hba scsi buf list |
9bad7671 JS |
770 | * @phba: The Hba for which this call is being executed. |
771 | * @psb: The scsi buffer which is being released. | |
772 | * | |
773 | * This routine releases @psb scsi buffer by adding it to tail of @phba | |
774 | * lpfc_scsi_buf_list list. | |
775 | **/ | |
0bd4ca25 | 776 | static void |
c490850a | 777 | lpfc_release_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_io_buf *psb) |
0bd4ca25 | 778 | { |
875fbdfe | 779 | unsigned long iflag = 0; |
dea3101e | 780 | |
a40fc5f0 | 781 | psb->seg_cnt = 0; |
a40fc5f0 JS |
782 | psb->prot_seg_cnt = 0; |
783 | ||
784 | spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag); | |
0bd4ca25 | 785 | psb->pCmd = NULL; |
6a485eb9 | 786 | psb->cur_iocbq.iocb_flag = LPFC_IO_FCP; |
a40fc5f0 JS |
787 | list_add_tail(&psb->list, &phba->lpfc_scsi_buf_list_put); |
788 | spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag); | |
dea3101e JB |
789 | } |
790 | ||
da0436e9 JS |
791 | /** |
792 | * lpfc_release_scsi_buf_s4: Return a scsi buffer back to hba scsi buf list. | |
793 | * @phba: The Hba for which this call is being executed. | |
794 | * @psb: The scsi buffer which is being released. | |
795 | * | |
5e5b511d JS |
796 | * This routine releases @psb scsi buffer by adding it to tail of @hdwq |
797 | * io_buf_list list. For SLI4 XRI's are tied to the scsi buffer | |
da0436e9 JS |
798 | * and cannot be reused for at least RA_TOV amount of time if it was |
799 | * aborted. | |
800 | **/ | |
801 | static void | |
c490850a | 802 | lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_io_buf *psb) |
da0436e9 | 803 | { |
5e5b511d | 804 | struct lpfc_sli4_hdw_queue *qp; |
da0436e9 JS |
805 | unsigned long iflag = 0; |
806 | ||
a40fc5f0 | 807 | psb->seg_cnt = 0; |
a40fc5f0 JS |
808 | psb->prot_seg_cnt = 0; |
809 | ||
1fbf9742 | 810 | qp = psb->hdwq; |
324e1c40 | 811 | if (psb->flags & LPFC_SBUF_XBUSY) { |
c00f62e6 | 812 | spin_lock_irqsave(&qp->abts_io_buf_list_lock, iflag); |
3e49af93 JS |
813 | if (!phba->cfg_fcp_wait_abts_rsp) |
814 | psb->pCmd = NULL; | |
c00f62e6 | 815 | list_add_tail(&psb->list, &qp->lpfc_abts_io_buf_list); |
5e5b511d | 816 | qp->abts_scsi_io_bufs++; |
c00f62e6 | 817 | spin_unlock_irqrestore(&qp->abts_io_buf_list_lock, iflag); |
da0436e9 | 818 | } else { |
c490850a | 819 | lpfc_release_io_buf(phba, (struct lpfc_io_buf *)psb, qp); |
da0436e9 JS |
820 | } |
821 | } | |
822 | ||
9bad7671 | 823 | /** |
3772a991 JS |
824 | * lpfc_release_scsi_buf: Return a scsi buffer back to hba scsi buf list. |
825 | * @phba: The Hba for which this call is being executed. | |
826 | * @psb: The scsi buffer which is being released. | |
827 | * | |
828 | * This routine releases @psb scsi buffer by adding it to tail of @phba | |
829 | * lpfc_scsi_buf_list list. | |
830 | **/ | |
831 | static void | |
c490850a | 832 | lpfc_release_scsi_buf(struct lpfc_hba *phba, struct lpfc_io_buf *psb) |
3772a991 | 833 | { |
2a5b7d62 JS |
834 | if ((psb->flags & LPFC_SBUF_BUMP_QDEPTH) && psb->ndlp) |
835 | atomic_dec(&psb->ndlp->cmd_pending); | |
3772a991 | 836 | |
2a5b7d62 | 837 | psb->flags &= ~LPFC_SBUF_BUMP_QDEPTH; |
3772a991 JS |
838 | phba->lpfc_release_scsi_buf(phba, psb); |
839 | } | |
840 | ||
da255e2e JS |
841 | /** |
842 | * lpfc_fcpcmd_to_iocb - copy the fcp_cmd data into the IOCB | |
843 | * @data: A pointer to the immediate command data portion of the IOCB. | |
844 | * @fcp_cmnd: The FCP Command that is provided by the SCSI layer. | |
845 | * | |
846 | * The routine copies the entire FCP command from @fcp_cmnd to @data while | |
847 | * byte swapping the data to big endian format for transmission on the wire. | |
848 | **/ | |
849 | static void | |
850 | lpfc_fcpcmd_to_iocb(u8 *data, struct fcp_cmnd *fcp_cmnd) | |
851 | { | |
852 | int i, j; | |
853 | ||
854 | for (i = 0, j = 0; i < sizeof(struct fcp_cmnd); | |
855 | i += sizeof(uint32_t), j++) { | |
856 | ((uint32_t *)data)[j] = cpu_to_be32(((uint32_t *)fcp_cmnd)[j]); | |
857 | } | |
858 | } | |
859 | ||
3772a991 JS |
860 | /** |
861 | * lpfc_scsi_prep_dma_buf_s3 - DMA mapping for scsi buffer to SLI3 IF spec | |
9bad7671 JS |
862 | * @phba: The Hba for which this call is being executed. |
863 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
864 | * | |
865 | * This routine does the pci dma mapping for scatter-gather list of scsi cmnd | |
3772a991 | 866 | * field of @lpfc_cmd for device with SLI-3 interface spec. This routine scans |
4b160ae8 | 867 | * through sg elements and format the bde. This routine also initializes all |
3772a991 | 868 | * IOCB fields which are dependent on scsi command request buffer. |
9bad7671 JS |
869 | * |
870 | * Return codes: | |
871 | * 1 - Error | |
872 | * 0 - Success | |
873 | **/ | |
dea3101e | 874 | static int |
c490850a | 875 | lpfc_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd) |
dea3101e JB |
876 | { |
877 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
878 | struct scatterlist *sgel = NULL; | |
879 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
c490850a | 880 | struct ulp_bde64 *bpl = (struct ulp_bde64 *)lpfc_cmd->dma_sgl; |
0f65ff68 | 881 | struct lpfc_iocbq *iocbq = &lpfc_cmd->cur_iocbq; |
dea3101e | 882 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; |
34b02dcd | 883 | struct ulp_bde64 *data_bde = iocb_cmd->unsli3.fcp_ext.dbde; |
dea3101e | 884 | dma_addr_t physaddr; |
34b02dcd | 885 | uint32_t num_bde = 0; |
a0b4f78f | 886 | int nseg, datadir = scsi_cmnd->sc_data_direction; |
dea3101e JB |
887 | |
888 | /* | |
889 | * There are three possibilities here - use scatter-gather segment, use | |
890 | * the single mapping, or neither. Start the lpfc command prep by | |
891 | * bumping the bpl beyond the fcp_cmnd and fcp_rsp regions to the first | |
892 | * data bde entry. | |
893 | */ | |
894 | bpl += 2; | |
c59fd9eb | 895 | if (scsi_sg_count(scsi_cmnd)) { |
dea3101e JB |
896 | /* |
897 | * The driver stores the segment count returned from pci_map_sg | |
898 | * because this a count of dma-mappings used to map the use_sg | |
899 | * pages. They are not guaranteed to be the same for those | |
900 | * architectures that implement an IOMMU. | |
901 | */ | |
dea3101e | 902 | |
c59fd9eb FT |
903 | nseg = dma_map_sg(&phba->pcidev->dev, scsi_sglist(scsi_cmnd), |
904 | scsi_sg_count(scsi_cmnd), datadir); | |
905 | if (unlikely(!nseg)) | |
906 | return 1; | |
907 | ||
a0b4f78f | 908 | lpfc_cmd->seg_cnt = nseg; |
dea3101e | 909 | if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) { |
372c187b DK |
910 | lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
911 | "9064 BLKGRD: %s: Too many sg segments" | |
912 | " from dma_map_sg. Config %d, seg_cnt" | |
913 | " %d\n", __func__, phba->cfg_sg_seg_cnt, | |
914 | lpfc_cmd->seg_cnt); | |
5e0e2318 | 915 | WARN_ON_ONCE(lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt); |
96f7077f | 916 | lpfc_cmd->seg_cnt = 0; |
a0b4f78f | 917 | scsi_dma_unmap(scsi_cmnd); |
5e0e2318 | 918 | return 2; |
dea3101e JB |
919 | } |
920 | ||
921 | /* | |
922 | * The driver established a maximum scatter-gather segment count | |
923 | * during probe that limits the number of sg elements in any | |
924 | * single scsi command. Just run through the seg_cnt and format | |
925 | * the bde's. | |
34b02dcd JS |
926 | * When using SLI-3 the driver will try to fit all the BDEs into |
927 | * the IOCB. If it can't then the BDEs get added to a BPL as it | |
928 | * does for SLI-2 mode. | |
dea3101e | 929 | */ |
34b02dcd | 930 | scsi_for_each_sg(scsi_cmnd, sgel, nseg, num_bde) { |
dea3101e | 931 | physaddr = sg_dma_address(sgel); |
34b02dcd | 932 | if (phba->sli_rev == 3 && |
e2a0a9d6 | 933 | !(phba->sli3_options & LPFC_SLI3_BG_ENABLED) && |
0f65ff68 | 934 | !(iocbq->iocb_flag & DSS_SECURITY_OP) && |
34b02dcd JS |
935 | nseg <= LPFC_EXT_DATA_BDE_COUNT) { |
936 | data_bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
937 | data_bde->tus.f.bdeSize = sg_dma_len(sgel); | |
938 | data_bde->addrLow = putPaddrLow(physaddr); | |
939 | data_bde->addrHigh = putPaddrHigh(physaddr); | |
940 | data_bde++; | |
941 | } else { | |
942 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
943 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
944 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
945 | bpl->addrLow = | |
946 | le32_to_cpu(putPaddrLow(physaddr)); | |
947 | bpl->addrHigh = | |
948 | le32_to_cpu(putPaddrHigh(physaddr)); | |
949 | bpl++; | |
950 | } | |
dea3101e | 951 | } |
c59fd9eb | 952 | } |
dea3101e JB |
953 | |
954 | /* | |
955 | * Finish initializing those IOCB fields that are dependent on the | |
34b02dcd JS |
956 | * scsi_cmnd request_buffer. Note that for SLI-2 the bdeSize is |
957 | * explicitly reinitialized and for SLI-3 the extended bde count is | |
958 | * explicitly reinitialized since all iocb memory resources are reused. | |
dea3101e | 959 | */ |
e2a0a9d6 | 960 | if (phba->sli_rev == 3 && |
0f65ff68 JS |
961 | !(phba->sli3_options & LPFC_SLI3_BG_ENABLED) && |
962 | !(iocbq->iocb_flag & DSS_SECURITY_OP)) { | |
34b02dcd JS |
963 | if (num_bde > LPFC_EXT_DATA_BDE_COUNT) { |
964 | /* | |
965 | * The extended IOCB format can only fit 3 BDE or a BPL. | |
966 | * This I/O has more than 3 BDE so the 1st data bde will | |
967 | * be a BPL that is filled in here. | |
968 | */ | |
969 | physaddr = lpfc_cmd->dma_handle; | |
970 | data_bde->tus.f.bdeFlags = BUFF_TYPE_BLP_64; | |
971 | data_bde->tus.f.bdeSize = (num_bde * | |
972 | sizeof(struct ulp_bde64)); | |
973 | physaddr += (sizeof(struct fcp_cmnd) + | |
974 | sizeof(struct fcp_rsp) + | |
975 | (2 * sizeof(struct ulp_bde64))); | |
976 | data_bde->addrHigh = putPaddrHigh(physaddr); | |
977 | data_bde->addrLow = putPaddrLow(physaddr); | |
25985edc | 978 | /* ebde count includes the response bde and data bpl */ |
34b02dcd JS |
979 | iocb_cmd->unsli3.fcp_ext.ebde_count = 2; |
980 | } else { | |
25985edc | 981 | /* ebde count includes the response bde and data bdes */ |
34b02dcd JS |
982 | iocb_cmd->unsli3.fcp_ext.ebde_count = (num_bde + 1); |
983 | } | |
984 | } else { | |
985 | iocb_cmd->un.fcpi64.bdl.bdeSize = | |
986 | ((num_bde + 2) * sizeof(struct ulp_bde64)); | |
0f65ff68 | 987 | iocb_cmd->unsli3.fcp_ext.ebde_count = (num_bde + 1); |
34b02dcd | 988 | } |
09372820 | 989 | fcp_cmnd->fcpDl = cpu_to_be32(scsi_bufflen(scsi_cmnd)); |
e2a0a9d6 JS |
990 | |
991 | /* | |
992 | * Due to difference in data length between DIF/non-DIF paths, | |
993 | * we need to set word 4 of IOCB here | |
994 | */ | |
a257bf90 | 995 | iocb_cmd->un.fcpi.fcpi_parm = scsi_bufflen(scsi_cmnd); |
da255e2e | 996 | lpfc_fcpcmd_to_iocb(iocb_cmd->unsli3.fcp_ext.icd, fcp_cmnd); |
e2a0a9d6 JS |
997 | return 0; |
998 | } | |
999 | ||
f9bb2da1 | 1000 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 1001 | |
4b160ae8 | 1002 | /* Return BG_ERR_INIT if error injection is detected by Initiator */ |
9a6b09c0 | 1003 | #define BG_ERR_INIT 0x1 |
4b160ae8 | 1004 | /* Return BG_ERR_TGT if error injection is detected by Target */ |
9a6b09c0 | 1005 | #define BG_ERR_TGT 0x2 |
4b160ae8 | 1006 | /* Return BG_ERR_SWAP if swapping CSUM<-->CRC is required for error injection */ |
9a6b09c0 | 1007 | #define BG_ERR_SWAP 0x10 |
0bb87e01 | 1008 | /* |
4b160ae8 MG |
1009 | * Return BG_ERR_CHECK if disabling Guard/Ref/App checking is required for |
1010 | * error injection | |
0bb87e01 | 1011 | */ |
9a6b09c0 | 1012 | #define BG_ERR_CHECK 0x20 |
acd6859b JS |
1013 | |
1014 | /** | |
1015 | * lpfc_bg_err_inject - Determine if we should inject an error | |
1016 | * @phba: The Hba for which this call is being executed. | |
f9bb2da1 JS |
1017 | * @sc: The SCSI command to examine |
1018 | * @reftag: (out) BlockGuard reference tag for transmitted data | |
1019 | * @apptag: (out) BlockGuard application tag for transmitted data | |
eceee00e | 1020 | * @new_guard: (in) Value to replace CRC with if needed |
f9bb2da1 | 1021 | * |
9a6b09c0 | 1022 | * Returns BG_ERR_* bit mask or 0 if request ignored |
acd6859b | 1023 | **/ |
f9bb2da1 JS |
1024 | static int |
1025 | lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
1026 | uint32_t *reftag, uint16_t *apptag, uint32_t new_guard) | |
1027 | { | |
1028 | struct scatterlist *sgpe; /* s/g prot entry */ | |
c490850a | 1029 | struct lpfc_io_buf *lpfc_cmd = NULL; |
acd6859b | 1030 | struct scsi_dif_tuple *src = NULL; |
4ac9b226 JS |
1031 | struct lpfc_nodelist *ndlp; |
1032 | struct lpfc_rport_data *rdata; | |
f9bb2da1 JS |
1033 | uint32_t op = scsi_get_prot_op(sc); |
1034 | uint32_t blksize; | |
1035 | uint32_t numblks; | |
68a6a66c | 1036 | u32 lba; |
f9bb2da1 | 1037 | int rc = 0; |
acd6859b | 1038 | int blockoff = 0; |
f9bb2da1 JS |
1039 | |
1040 | if (op == SCSI_PROT_NORMAL) | |
1041 | return 0; | |
1042 | ||
acd6859b | 1043 | sgpe = scsi_prot_sglist(sc); |
125c12f7 | 1044 | lba = scsi_prot_ref_tag(sc); |
68a6a66c JS |
1045 | if (lba == LPFC_INVALID_REFTAG) |
1046 | return 0; | |
4ac9b226 JS |
1047 | |
1048 | /* First check if we need to match the LBA */ | |
f9bb2da1 | 1049 | if (phba->lpfc_injerr_lba != LPFC_INJERR_LBA_OFF) { |
125c12f7 | 1050 | blksize = scsi_prot_interval(sc); |
f9bb2da1 JS |
1051 | numblks = (scsi_bufflen(sc) + blksize - 1) / blksize; |
1052 | ||
1053 | /* Make sure we have the right LBA if one is specified */ | |
68a6a66c JS |
1054 | if (phba->lpfc_injerr_lba < (u64)lba || |
1055 | (phba->lpfc_injerr_lba >= (u64)(lba + numblks))) | |
f9bb2da1 | 1056 | return 0; |
acd6859b | 1057 | if (sgpe) { |
68a6a66c | 1058 | blockoff = phba->lpfc_injerr_lba - (u64)lba; |
acd6859b JS |
1059 | numblks = sg_dma_len(sgpe) / |
1060 | sizeof(struct scsi_dif_tuple); | |
1061 | if (numblks < blockoff) | |
1062 | blockoff = numblks; | |
acd6859b | 1063 | } |
f9bb2da1 JS |
1064 | } |
1065 | ||
4ac9b226 | 1066 | /* Next check if we need to match the remote NPortID or WWPN */ |
1ba981fd | 1067 | rdata = lpfc_rport_data_from_scsi_device(sc->device); |
4ac9b226 JS |
1068 | if (rdata && rdata->pnode) { |
1069 | ndlp = rdata->pnode; | |
1070 | ||
1071 | /* Make sure we have the right NPortID if one is specified */ | |
1072 | if (phba->lpfc_injerr_nportid && | |
1073 | (phba->lpfc_injerr_nportid != ndlp->nlp_DID)) | |
1074 | return 0; | |
1075 | ||
1076 | /* | |
1077 | * Make sure we have the right WWPN if one is specified. | |
1078 | * wwn[0] should be a non-zero NAA in a good WWPN. | |
1079 | */ | |
1080 | if (phba->lpfc_injerr_wwpn.u.wwn[0] && | |
1081 | (memcmp(&ndlp->nlp_portname, &phba->lpfc_injerr_wwpn, | |
1082 | sizeof(struct lpfc_name)) != 0)) | |
1083 | return 0; | |
1084 | } | |
1085 | ||
1086 | /* Setup a ptr to the protection data if the SCSI host provides it */ | |
1087 | if (sgpe) { | |
1088 | src = (struct scsi_dif_tuple *)sg_virt(sgpe); | |
1089 | src += blockoff; | |
c490850a | 1090 | lpfc_cmd = (struct lpfc_io_buf *)sc->host_scribble; |
4ac9b226 JS |
1091 | } |
1092 | ||
f9bb2da1 JS |
1093 | /* Should we change the Reference Tag */ |
1094 | if (reftag) { | |
acd6859b JS |
1095 | if (phba->lpfc_injerr_wref_cnt) { |
1096 | switch (op) { | |
1097 | case SCSI_PROT_WRITE_PASS: | |
9a6b09c0 JS |
1098 | if (src) { |
1099 | /* | |
1100 | * For WRITE_PASS, force the error | |
1101 | * to be sent on the wire. It should | |
1102 | * be detected by the Target. | |
1103 | * If blockoff != 0 error will be | |
1104 | * inserted in middle of the IO. | |
1105 | */ | |
acd6859b | 1106 | |
372c187b DK |
1107 | lpfc_printf_log(phba, KERN_ERR, |
1108 | LOG_TRACE_EVENT, | |
acd6859b JS |
1109 | "9076 BLKGRD: Injecting reftag error: " |
1110 | "write lba x%lx + x%x oldrefTag x%x\n", | |
1111 | (unsigned long)lba, blockoff, | |
9a6b09c0 | 1112 | be32_to_cpu(src->ref_tag)); |
f9bb2da1 | 1113 | |
acd6859b | 1114 | /* |
9a6b09c0 JS |
1115 | * Save the old ref_tag so we can |
1116 | * restore it on completion. | |
acd6859b | 1117 | */ |
9a6b09c0 JS |
1118 | if (lpfc_cmd) { |
1119 | lpfc_cmd->prot_data_type = | |
1120 | LPFC_INJERR_REFTAG; | |
1121 | lpfc_cmd->prot_data_segment = | |
1122 | src; | |
1123 | lpfc_cmd->prot_data = | |
1124 | src->ref_tag; | |
1125 | } | |
1126 | src->ref_tag = cpu_to_be32(0xDEADBEEF); | |
acd6859b | 1127 | phba->lpfc_injerr_wref_cnt--; |
4ac9b226 JS |
1128 | if (phba->lpfc_injerr_wref_cnt == 0) { |
1129 | phba->lpfc_injerr_nportid = 0; | |
1130 | phba->lpfc_injerr_lba = | |
1131 | LPFC_INJERR_LBA_OFF; | |
1132 | memset(&phba->lpfc_injerr_wwpn, | |
1133 | 0, sizeof(struct lpfc_name)); | |
1134 | } | |
9a6b09c0 JS |
1135 | rc = BG_ERR_TGT | BG_ERR_CHECK; |
1136 | ||
acd6859b JS |
1137 | break; |
1138 | } | |
df561f66 | 1139 | fallthrough; |
9a6b09c0 | 1140 | case SCSI_PROT_WRITE_INSERT: |
acd6859b | 1141 | /* |
9a6b09c0 JS |
1142 | * For WRITE_INSERT, force the error |
1143 | * to be sent on the wire. It should be | |
1144 | * detected by the Target. | |
acd6859b | 1145 | */ |
9a6b09c0 | 1146 | /* DEADBEEF will be the reftag on the wire */ |
acd6859b JS |
1147 | *reftag = 0xDEADBEEF; |
1148 | phba->lpfc_injerr_wref_cnt--; | |
4ac9b226 JS |
1149 | if (phba->lpfc_injerr_wref_cnt == 0) { |
1150 | phba->lpfc_injerr_nportid = 0; | |
1151 | phba->lpfc_injerr_lba = | |
1152 | LPFC_INJERR_LBA_OFF; | |
1153 | memset(&phba->lpfc_injerr_wwpn, | |
1154 | 0, sizeof(struct lpfc_name)); | |
1155 | } | |
9a6b09c0 | 1156 | rc = BG_ERR_TGT | BG_ERR_CHECK; |
acd6859b | 1157 | |
372c187b | 1158 | lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
9a6b09c0 | 1159 | "9078 BLKGRD: Injecting reftag error: " |
acd6859b JS |
1160 | "write lba x%lx\n", (unsigned long)lba); |
1161 | break; | |
9a6b09c0 | 1162 | case SCSI_PROT_WRITE_STRIP: |
acd6859b | 1163 | /* |
9a6b09c0 JS |
1164 | * For WRITE_STRIP and WRITE_PASS, |
1165 | * force the error on data | |
1166 | * being copied from SLI-Host to SLI-Port. | |
acd6859b | 1167 | */ |
f9bb2da1 JS |
1168 | *reftag = 0xDEADBEEF; |
1169 | phba->lpfc_injerr_wref_cnt--; | |
4ac9b226 JS |
1170 | if (phba->lpfc_injerr_wref_cnt == 0) { |
1171 | phba->lpfc_injerr_nportid = 0; | |
1172 | phba->lpfc_injerr_lba = | |
1173 | LPFC_INJERR_LBA_OFF; | |
1174 | memset(&phba->lpfc_injerr_wwpn, | |
1175 | 0, sizeof(struct lpfc_name)); | |
1176 | } | |
9a6b09c0 | 1177 | rc = BG_ERR_INIT; |
f9bb2da1 | 1178 | |
372c187b | 1179 | lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
9a6b09c0 | 1180 | "9077 BLKGRD: Injecting reftag error: " |
f9bb2da1 | 1181 | "write lba x%lx\n", (unsigned long)lba); |
acd6859b | 1182 | break; |
f9bb2da1 | 1183 | } |
acd6859b JS |
1184 | } |
1185 | if (phba->lpfc_injerr_rref_cnt) { | |
1186 | switch (op) { | |
1187 | case SCSI_PROT_READ_INSERT: | |
acd6859b JS |
1188 | case SCSI_PROT_READ_STRIP: |
1189 | case SCSI_PROT_READ_PASS: | |
1190 | /* | |
1191 | * For READ_STRIP and READ_PASS, force the | |
1192 | * error on data being read off the wire. It | |
1193 | * should force an IO error to the driver. | |
1194 | */ | |
f9bb2da1 JS |
1195 | *reftag = 0xDEADBEEF; |
1196 | phba->lpfc_injerr_rref_cnt--; | |
4ac9b226 JS |
1197 | if (phba->lpfc_injerr_rref_cnt == 0) { |
1198 | phba->lpfc_injerr_nportid = 0; | |
1199 | phba->lpfc_injerr_lba = | |
1200 | LPFC_INJERR_LBA_OFF; | |
1201 | memset(&phba->lpfc_injerr_wwpn, | |
1202 | 0, sizeof(struct lpfc_name)); | |
1203 | } | |
acd6859b | 1204 | rc = BG_ERR_INIT; |
f9bb2da1 | 1205 | |
372c187b | 1206 | lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
acd6859b | 1207 | "9079 BLKGRD: Injecting reftag error: " |
f9bb2da1 | 1208 | "read lba x%lx\n", (unsigned long)lba); |
acd6859b | 1209 | break; |
f9bb2da1 JS |
1210 | } |
1211 | } | |
1212 | } | |
1213 | ||
1214 | /* Should we change the Application Tag */ | |
1215 | if (apptag) { | |
acd6859b JS |
1216 | if (phba->lpfc_injerr_wapp_cnt) { |
1217 | switch (op) { | |
1218 | case SCSI_PROT_WRITE_PASS: | |
4ac9b226 | 1219 | if (src) { |
9a6b09c0 JS |
1220 | /* |
1221 | * For WRITE_PASS, force the error | |
1222 | * to be sent on the wire. It should | |
1223 | * be detected by the Target. | |
1224 | * If blockoff != 0 error will be | |
1225 | * inserted in middle of the IO. | |
1226 | */ | |
1227 | ||
372c187b DK |
1228 | lpfc_printf_log(phba, KERN_ERR, |
1229 | LOG_TRACE_EVENT, | |
acd6859b JS |
1230 | "9080 BLKGRD: Injecting apptag error: " |
1231 | "write lba x%lx + x%x oldappTag x%x\n", | |
1232 | (unsigned long)lba, blockoff, | |
9a6b09c0 | 1233 | be16_to_cpu(src->app_tag)); |
acd6859b JS |
1234 | |
1235 | /* | |
9a6b09c0 JS |
1236 | * Save the old app_tag so we can |
1237 | * restore it on completion. | |
acd6859b | 1238 | */ |
9a6b09c0 JS |
1239 | if (lpfc_cmd) { |
1240 | lpfc_cmd->prot_data_type = | |
1241 | LPFC_INJERR_APPTAG; | |
1242 | lpfc_cmd->prot_data_segment = | |
1243 | src; | |
1244 | lpfc_cmd->prot_data = | |
1245 | src->app_tag; | |
1246 | } | |
1247 | src->app_tag = cpu_to_be16(0xDEAD); | |
acd6859b | 1248 | phba->lpfc_injerr_wapp_cnt--; |
4ac9b226 JS |
1249 | if (phba->lpfc_injerr_wapp_cnt == 0) { |
1250 | phba->lpfc_injerr_nportid = 0; | |
1251 | phba->lpfc_injerr_lba = | |
1252 | LPFC_INJERR_LBA_OFF; | |
1253 | memset(&phba->lpfc_injerr_wwpn, | |
1254 | 0, sizeof(struct lpfc_name)); | |
1255 | } | |
9a6b09c0 | 1256 | rc = BG_ERR_TGT | BG_ERR_CHECK; |
acd6859b JS |
1257 | break; |
1258 | } | |
df561f66 | 1259 | fallthrough; |
9a6b09c0 | 1260 | case SCSI_PROT_WRITE_INSERT: |
acd6859b | 1261 | /* |
9a6b09c0 JS |
1262 | * For WRITE_INSERT, force the |
1263 | * error to be sent on the wire. It should be | |
1264 | * detected by the Target. | |
acd6859b | 1265 | */ |
9a6b09c0 | 1266 | /* DEAD will be the apptag on the wire */ |
acd6859b JS |
1267 | *apptag = 0xDEAD; |
1268 | phba->lpfc_injerr_wapp_cnt--; | |
4ac9b226 JS |
1269 | if (phba->lpfc_injerr_wapp_cnt == 0) { |
1270 | phba->lpfc_injerr_nportid = 0; | |
1271 | phba->lpfc_injerr_lba = | |
1272 | LPFC_INJERR_LBA_OFF; | |
1273 | memset(&phba->lpfc_injerr_wwpn, | |
1274 | 0, sizeof(struct lpfc_name)); | |
1275 | } | |
9a6b09c0 | 1276 | rc = BG_ERR_TGT | BG_ERR_CHECK; |
f9bb2da1 | 1277 | |
372c187b | 1278 | lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
9a6b09c0 | 1279 | "0813 BLKGRD: Injecting apptag error: " |
acd6859b JS |
1280 | "write lba x%lx\n", (unsigned long)lba); |
1281 | break; | |
9a6b09c0 | 1282 | case SCSI_PROT_WRITE_STRIP: |
acd6859b | 1283 | /* |
9a6b09c0 JS |
1284 | * For WRITE_STRIP and WRITE_PASS, |
1285 | * force the error on data | |
1286 | * being copied from SLI-Host to SLI-Port. | |
acd6859b | 1287 | */ |
f9bb2da1 JS |
1288 | *apptag = 0xDEAD; |
1289 | phba->lpfc_injerr_wapp_cnt--; | |
4ac9b226 JS |
1290 | if (phba->lpfc_injerr_wapp_cnt == 0) { |
1291 | phba->lpfc_injerr_nportid = 0; | |
1292 | phba->lpfc_injerr_lba = | |
1293 | LPFC_INJERR_LBA_OFF; | |
1294 | memset(&phba->lpfc_injerr_wwpn, | |
1295 | 0, sizeof(struct lpfc_name)); | |
1296 | } | |
9a6b09c0 | 1297 | rc = BG_ERR_INIT; |
f9bb2da1 | 1298 | |
372c187b | 1299 | lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
9a6b09c0 | 1300 | "0812 BLKGRD: Injecting apptag error: " |
f9bb2da1 | 1301 | "write lba x%lx\n", (unsigned long)lba); |
acd6859b | 1302 | break; |
f9bb2da1 | 1303 | } |
acd6859b JS |
1304 | } |
1305 | if (phba->lpfc_injerr_rapp_cnt) { | |
1306 | switch (op) { | |
1307 | case SCSI_PROT_READ_INSERT: | |
acd6859b JS |
1308 | case SCSI_PROT_READ_STRIP: |
1309 | case SCSI_PROT_READ_PASS: | |
1310 | /* | |
1311 | * For READ_STRIP and READ_PASS, force the | |
1312 | * error on data being read off the wire. It | |
1313 | * should force an IO error to the driver. | |
1314 | */ | |
f9bb2da1 JS |
1315 | *apptag = 0xDEAD; |
1316 | phba->lpfc_injerr_rapp_cnt--; | |
4ac9b226 JS |
1317 | if (phba->lpfc_injerr_rapp_cnt == 0) { |
1318 | phba->lpfc_injerr_nportid = 0; | |
1319 | phba->lpfc_injerr_lba = | |
1320 | LPFC_INJERR_LBA_OFF; | |
1321 | memset(&phba->lpfc_injerr_wwpn, | |
1322 | 0, sizeof(struct lpfc_name)); | |
1323 | } | |
acd6859b | 1324 | rc = BG_ERR_INIT; |
f9bb2da1 | 1325 | |
372c187b | 1326 | lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
acd6859b | 1327 | "0814 BLKGRD: Injecting apptag error: " |
f9bb2da1 | 1328 | "read lba x%lx\n", (unsigned long)lba); |
acd6859b | 1329 | break; |
f9bb2da1 JS |
1330 | } |
1331 | } | |
1332 | } | |
1333 | ||
acd6859b | 1334 | |
f9bb2da1 | 1335 | /* Should we change the Guard Tag */ |
acd6859b JS |
1336 | if (new_guard) { |
1337 | if (phba->lpfc_injerr_wgrd_cnt) { | |
1338 | switch (op) { | |
1339 | case SCSI_PROT_WRITE_PASS: | |
9a6b09c0 | 1340 | rc = BG_ERR_CHECK; |
df561f66 | 1341 | fallthrough; |
9a6b09c0 JS |
1342 | |
1343 | case SCSI_PROT_WRITE_INSERT: | |
acd6859b | 1344 | /* |
9a6b09c0 JS |
1345 | * For WRITE_INSERT, force the |
1346 | * error to be sent on the wire. It should be | |
1347 | * detected by the Target. | |
acd6859b JS |
1348 | */ |
1349 | phba->lpfc_injerr_wgrd_cnt--; | |
4ac9b226 JS |
1350 | if (phba->lpfc_injerr_wgrd_cnt == 0) { |
1351 | phba->lpfc_injerr_nportid = 0; | |
1352 | phba->lpfc_injerr_lba = | |
1353 | LPFC_INJERR_LBA_OFF; | |
1354 | memset(&phba->lpfc_injerr_wwpn, | |
1355 | 0, sizeof(struct lpfc_name)); | |
1356 | } | |
f9bb2da1 | 1357 | |
9a6b09c0 | 1358 | rc |= BG_ERR_TGT | BG_ERR_SWAP; |
acd6859b | 1359 | /* Signals the caller to swap CRC->CSUM */ |
f9bb2da1 | 1360 | |
372c187b | 1361 | lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
9a6b09c0 | 1362 | "0817 BLKGRD: Injecting guard error: " |
acd6859b JS |
1363 | "write lba x%lx\n", (unsigned long)lba); |
1364 | break; | |
9a6b09c0 | 1365 | case SCSI_PROT_WRITE_STRIP: |
acd6859b | 1366 | /* |
9a6b09c0 JS |
1367 | * For WRITE_STRIP and WRITE_PASS, |
1368 | * force the error on data | |
1369 | * being copied from SLI-Host to SLI-Port. | |
acd6859b JS |
1370 | */ |
1371 | phba->lpfc_injerr_wgrd_cnt--; | |
4ac9b226 JS |
1372 | if (phba->lpfc_injerr_wgrd_cnt == 0) { |
1373 | phba->lpfc_injerr_nportid = 0; | |
1374 | phba->lpfc_injerr_lba = | |
1375 | LPFC_INJERR_LBA_OFF; | |
1376 | memset(&phba->lpfc_injerr_wwpn, | |
1377 | 0, sizeof(struct lpfc_name)); | |
1378 | } | |
f9bb2da1 | 1379 | |
9a6b09c0 | 1380 | rc = BG_ERR_INIT | BG_ERR_SWAP; |
acd6859b JS |
1381 | /* Signals the caller to swap CRC->CSUM */ |
1382 | ||
372c187b | 1383 | lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
9a6b09c0 | 1384 | "0816 BLKGRD: Injecting guard error: " |
acd6859b JS |
1385 | "write lba x%lx\n", (unsigned long)lba); |
1386 | break; | |
1387 | } | |
1388 | } | |
1389 | if (phba->lpfc_injerr_rgrd_cnt) { | |
1390 | switch (op) { | |
1391 | case SCSI_PROT_READ_INSERT: | |
acd6859b JS |
1392 | case SCSI_PROT_READ_STRIP: |
1393 | case SCSI_PROT_READ_PASS: | |
1394 | /* | |
1395 | * For READ_STRIP and READ_PASS, force the | |
1396 | * error on data being read off the wire. It | |
1397 | * should force an IO error to the driver. | |
1398 | */ | |
acd6859b | 1399 | phba->lpfc_injerr_rgrd_cnt--; |
4ac9b226 JS |
1400 | if (phba->lpfc_injerr_rgrd_cnt == 0) { |
1401 | phba->lpfc_injerr_nportid = 0; | |
1402 | phba->lpfc_injerr_lba = | |
1403 | LPFC_INJERR_LBA_OFF; | |
1404 | memset(&phba->lpfc_injerr_wwpn, | |
1405 | 0, sizeof(struct lpfc_name)); | |
1406 | } | |
acd6859b | 1407 | |
9a6b09c0 | 1408 | rc = BG_ERR_INIT | BG_ERR_SWAP; |
acd6859b JS |
1409 | /* Signals the caller to swap CRC->CSUM */ |
1410 | ||
372c187b | 1411 | lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
acd6859b JS |
1412 | "0818 BLKGRD: Injecting guard error: " |
1413 | "read lba x%lx\n", (unsigned long)lba); | |
1414 | } | |
f9bb2da1 JS |
1415 | } |
1416 | } | |
acd6859b | 1417 | |
f9bb2da1 JS |
1418 | return rc; |
1419 | } | |
1420 | #endif | |
1421 | ||
acd6859b JS |
1422 | /** |
1423 | * lpfc_sc_to_bg_opcodes - Determine the BlockGuard opcodes to be used with | |
1424 | * the specified SCSI command. | |
1425 | * @phba: The Hba for which this call is being executed. | |
6c8eea54 | 1426 | * @sc: The SCSI command to examine |
eceee00e LJ |
1427 | * @txop: (out) BlockGuard operation for transmitted data |
1428 | * @rxop: (out) BlockGuard operation for received data | |
6c8eea54 JS |
1429 | * |
1430 | * Returns: zero on success; non-zero if tx and/or rx op cannot be determined | |
1431 | * | |
acd6859b | 1432 | **/ |
e2a0a9d6 | 1433 | static int |
6c8eea54 JS |
1434 | lpfc_sc_to_bg_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc, |
1435 | uint8_t *txop, uint8_t *rxop) | |
e2a0a9d6 | 1436 | { |
6c8eea54 | 1437 | uint8_t ret = 0; |
e2a0a9d6 | 1438 | |
125c12f7 | 1439 | if (sc->prot_flags & SCSI_PROT_IP_CHECKSUM) { |
e2a0a9d6 JS |
1440 | switch (scsi_get_prot_op(sc)) { |
1441 | case SCSI_PROT_READ_INSERT: | |
1442 | case SCSI_PROT_WRITE_STRIP: | |
6c8eea54 | 1443 | *rxop = BG_OP_IN_NODIF_OUT_CSUM; |
4ac9b226 | 1444 | *txop = BG_OP_IN_CSUM_OUT_NODIF; |
e2a0a9d6 JS |
1445 | break; |
1446 | ||
1447 | case SCSI_PROT_READ_STRIP: | |
1448 | case SCSI_PROT_WRITE_INSERT: | |
6c8eea54 | 1449 | *rxop = BG_OP_IN_CRC_OUT_NODIF; |
4ac9b226 | 1450 | *txop = BG_OP_IN_NODIF_OUT_CRC; |
e2a0a9d6 JS |
1451 | break; |
1452 | ||
c6af4042 MP |
1453 | case SCSI_PROT_READ_PASS: |
1454 | case SCSI_PROT_WRITE_PASS: | |
6c8eea54 | 1455 | *rxop = BG_OP_IN_CRC_OUT_CSUM; |
4ac9b226 | 1456 | *txop = BG_OP_IN_CSUM_OUT_CRC; |
e2a0a9d6 JS |
1457 | break; |
1458 | ||
e2a0a9d6 JS |
1459 | case SCSI_PROT_NORMAL: |
1460 | default: | |
372c187b | 1461 | lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
7c56b9fd JS |
1462 | "9063 BLKGRD: Bad op/guard:%d/IP combination\n", |
1463 | scsi_get_prot_op(sc)); | |
6c8eea54 | 1464 | ret = 1; |
e2a0a9d6 JS |
1465 | break; |
1466 | ||
1467 | } | |
7c56b9fd | 1468 | } else { |
e2a0a9d6 JS |
1469 | switch (scsi_get_prot_op(sc)) { |
1470 | case SCSI_PROT_READ_STRIP: | |
1471 | case SCSI_PROT_WRITE_INSERT: | |
6c8eea54 | 1472 | *rxop = BG_OP_IN_CRC_OUT_NODIF; |
4ac9b226 | 1473 | *txop = BG_OP_IN_NODIF_OUT_CRC; |
e2a0a9d6 JS |
1474 | break; |
1475 | ||
1476 | case SCSI_PROT_READ_PASS: | |
1477 | case SCSI_PROT_WRITE_PASS: | |
6c8eea54 | 1478 | *rxop = BG_OP_IN_CRC_OUT_CRC; |
4ac9b226 | 1479 | *txop = BG_OP_IN_CRC_OUT_CRC; |
e2a0a9d6 JS |
1480 | break; |
1481 | ||
e2a0a9d6 JS |
1482 | case SCSI_PROT_READ_INSERT: |
1483 | case SCSI_PROT_WRITE_STRIP: | |
7c56b9fd | 1484 | *rxop = BG_OP_IN_NODIF_OUT_CRC; |
4ac9b226 | 1485 | *txop = BG_OP_IN_CRC_OUT_NODIF; |
7c56b9fd JS |
1486 | break; |
1487 | ||
e2a0a9d6 JS |
1488 | case SCSI_PROT_NORMAL: |
1489 | default: | |
372c187b | 1490 | lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
7c56b9fd JS |
1491 | "9075 BLKGRD: Bad op/guard:%d/CRC combination\n", |
1492 | scsi_get_prot_op(sc)); | |
6c8eea54 | 1493 | ret = 1; |
e2a0a9d6 JS |
1494 | break; |
1495 | } | |
e2a0a9d6 JS |
1496 | } |
1497 | ||
6c8eea54 | 1498 | return ret; |
e2a0a9d6 JS |
1499 | } |
1500 | ||
acd6859b JS |
1501 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
1502 | /** | |
1503 | * lpfc_bg_err_opcodes - reDetermine the BlockGuard opcodes to be used with | |
1504 | * the specified SCSI command in order to force a guard tag error. | |
1505 | * @phba: The Hba for which this call is being executed. | |
1506 | * @sc: The SCSI command to examine | |
eceee00e LJ |
1507 | * @txop: (out) BlockGuard operation for transmitted data |
1508 | * @rxop: (out) BlockGuard operation for received data | |
acd6859b JS |
1509 | * |
1510 | * Returns: zero on success; non-zero if tx and/or rx op cannot be determined | |
1511 | * | |
1512 | **/ | |
1513 | static int | |
1514 | lpfc_bg_err_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
1515 | uint8_t *txop, uint8_t *rxop) | |
1516 | { | |
acd6859b | 1517 | |
125c12f7 | 1518 | if (sc->prot_flags & SCSI_PROT_IP_CHECKSUM) { |
acd6859b JS |
1519 | switch (scsi_get_prot_op(sc)) { |
1520 | case SCSI_PROT_READ_INSERT: | |
1521 | case SCSI_PROT_WRITE_STRIP: | |
acd6859b | 1522 | *rxop = BG_OP_IN_NODIF_OUT_CRC; |
4ac9b226 | 1523 | *txop = BG_OP_IN_CRC_OUT_NODIF; |
acd6859b JS |
1524 | break; |
1525 | ||
1526 | case SCSI_PROT_READ_STRIP: | |
1527 | case SCSI_PROT_WRITE_INSERT: | |
acd6859b | 1528 | *rxop = BG_OP_IN_CSUM_OUT_NODIF; |
4ac9b226 | 1529 | *txop = BG_OP_IN_NODIF_OUT_CSUM; |
acd6859b JS |
1530 | break; |
1531 | ||
1532 | case SCSI_PROT_READ_PASS: | |
1533 | case SCSI_PROT_WRITE_PASS: | |
4ac9b226 | 1534 | *rxop = BG_OP_IN_CSUM_OUT_CRC; |
9a6b09c0 | 1535 | *txop = BG_OP_IN_CRC_OUT_CSUM; |
acd6859b JS |
1536 | break; |
1537 | ||
1538 | case SCSI_PROT_NORMAL: | |
1539 | default: | |
1540 | break; | |
1541 | ||
1542 | } | |
1543 | } else { | |
1544 | switch (scsi_get_prot_op(sc)) { | |
1545 | case SCSI_PROT_READ_STRIP: | |
1546 | case SCSI_PROT_WRITE_INSERT: | |
acd6859b | 1547 | *rxop = BG_OP_IN_CSUM_OUT_NODIF; |
4ac9b226 | 1548 | *txop = BG_OP_IN_NODIF_OUT_CSUM; |
acd6859b JS |
1549 | break; |
1550 | ||
1551 | case SCSI_PROT_READ_PASS: | |
1552 | case SCSI_PROT_WRITE_PASS: | |
4ac9b226 | 1553 | *rxop = BG_OP_IN_CSUM_OUT_CSUM; |
9a6b09c0 | 1554 | *txop = BG_OP_IN_CSUM_OUT_CSUM; |
acd6859b JS |
1555 | break; |
1556 | ||
1557 | case SCSI_PROT_READ_INSERT: | |
1558 | case SCSI_PROT_WRITE_STRIP: | |
acd6859b | 1559 | *rxop = BG_OP_IN_NODIF_OUT_CSUM; |
4ac9b226 | 1560 | *txop = BG_OP_IN_CSUM_OUT_NODIF; |
acd6859b JS |
1561 | break; |
1562 | ||
1563 | case SCSI_PROT_NORMAL: | |
1564 | default: | |
1565 | break; | |
1566 | } | |
1567 | } | |
1568 | ||
5d1e1510 | 1569 | return 0; |
acd6859b JS |
1570 | } |
1571 | #endif | |
1572 | ||
1573 | /** | |
1574 | * lpfc_bg_setup_bpl - Setup BlockGuard BPL with no protection data | |
1575 | * @phba: The Hba for which this call is being executed. | |
1576 | * @sc: pointer to scsi command we're working on | |
1577 | * @bpl: pointer to buffer list for protection groups | |
eceee00e | 1578 | * @datasegcnt: number of segments of data that have been dma mapped |
acd6859b JS |
1579 | * |
1580 | * This function sets up BPL buffer list for protection groups of | |
e2a0a9d6 JS |
1581 | * type LPFC_PG_TYPE_NO_DIF |
1582 | * | |
1583 | * This is usually used when the HBA is instructed to generate | |
1584 | * DIFs and insert them into data stream (or strip DIF from | |
1585 | * incoming data stream) | |
1586 | * | |
1587 | * The buffer list consists of just one protection group described | |
1588 | * below: | |
1589 | * +-------------------------+ | |
6c8eea54 JS |
1590 | * start of prot group --> | PDE_5 | |
1591 | * +-------------------------+ | |
1592 | * | PDE_6 | | |
e2a0a9d6 JS |
1593 | * +-------------------------+ |
1594 | * | Data BDE | | |
1595 | * +-------------------------+ | |
1596 | * |more Data BDE's ... (opt)| | |
1597 | * +-------------------------+ | |
1598 | * | |
e2a0a9d6 JS |
1599 | * |
1600 | * Note: Data s/g buffers have been dma mapped | |
acd6859b JS |
1601 | * |
1602 | * Returns the number of BDEs added to the BPL. | |
1603 | **/ | |
e2a0a9d6 JS |
1604 | static int |
1605 | lpfc_bg_setup_bpl(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
1606 | struct ulp_bde64 *bpl, int datasegcnt) | |
1607 | { | |
1608 | struct scatterlist *sgde = NULL; /* s/g data entry */ | |
6c8eea54 JS |
1609 | struct lpfc_pde5 *pde5 = NULL; |
1610 | struct lpfc_pde6 *pde6 = NULL; | |
e2a0a9d6 | 1611 | dma_addr_t physaddr; |
6c8eea54 | 1612 | int i = 0, num_bde = 0, status; |
e2a0a9d6 | 1613 | int datadir = sc->sc_data_direction; |
0829a19a | 1614 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 1615 | uint32_t rc; |
0829a19a | 1616 | #endif |
acd6859b | 1617 | uint32_t checking = 1; |
e2a0a9d6 | 1618 | uint32_t reftag; |
6c8eea54 | 1619 | uint8_t txop, rxop; |
e2a0a9d6 | 1620 | |
6c8eea54 JS |
1621 | status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop); |
1622 | if (status) | |
e2a0a9d6 JS |
1623 | goto out; |
1624 | ||
6c8eea54 | 1625 | /* extract some info from the scsi command for pde*/ |
125c12f7 | 1626 | reftag = scsi_prot_ref_tag(sc); |
68a6a66c JS |
1627 | if (reftag == LPFC_INVALID_REFTAG) |
1628 | goto out; | |
e2a0a9d6 | 1629 | |
f9bb2da1 | 1630 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
4ac9b226 | 1631 | rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); |
acd6859b | 1632 | if (rc) { |
9a6b09c0 | 1633 | if (rc & BG_ERR_SWAP) |
acd6859b | 1634 | lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); |
9a6b09c0 | 1635 | if (rc & BG_ERR_CHECK) |
acd6859b JS |
1636 | checking = 0; |
1637 | } | |
f9bb2da1 JS |
1638 | #endif |
1639 | ||
6c8eea54 JS |
1640 | /* setup PDE5 with what we have */ |
1641 | pde5 = (struct lpfc_pde5 *) bpl; | |
1642 | memset(pde5, 0, sizeof(struct lpfc_pde5)); | |
1643 | bf_set(pde5_type, pde5, LPFC_PDE5_DESCRIPTOR); | |
6c8eea54 | 1644 | |
bc73905a | 1645 | /* Endianness conversion if necessary for PDE5 */ |
589a52d6 | 1646 | pde5->word0 = cpu_to_le32(pde5->word0); |
7c56b9fd | 1647 | pde5->reftag = cpu_to_le32(reftag); |
589a52d6 | 1648 | |
6c8eea54 JS |
1649 | /* advance bpl and increment bde count */ |
1650 | num_bde++; | |
1651 | bpl++; | |
1652 | pde6 = (struct lpfc_pde6 *) bpl; | |
1653 | ||
1654 | /* setup PDE6 with the rest of the info */ | |
1655 | memset(pde6, 0, sizeof(struct lpfc_pde6)); | |
1656 | bf_set(pde6_type, pde6, LPFC_PDE6_DESCRIPTOR); | |
1657 | bf_set(pde6_optx, pde6, txop); | |
1658 | bf_set(pde6_oprx, pde6, rxop); | |
a6887e28 JS |
1659 | |
1660 | /* | |
1661 | * We only need to check the data on READs, for WRITEs | |
1662 | * protection data is automatically generated, not checked. | |
1663 | */ | |
6c8eea54 | 1664 | if (datadir == DMA_FROM_DEVICE) { |
125c12f7 | 1665 | if (sc->prot_flags & SCSI_PROT_GUARD_CHECK) |
a6887e28 JS |
1666 | bf_set(pde6_ce, pde6, checking); |
1667 | else | |
1668 | bf_set(pde6_ce, pde6, 0); | |
1669 | ||
125c12f7 | 1670 | if (sc->prot_flags & SCSI_PROT_REF_CHECK) |
a6887e28 JS |
1671 | bf_set(pde6_re, pde6, checking); |
1672 | else | |
1673 | bf_set(pde6_re, pde6, 0); | |
6c8eea54 JS |
1674 | } |
1675 | bf_set(pde6_ai, pde6, 1); | |
7c56b9fd JS |
1676 | bf_set(pde6_ae, pde6, 0); |
1677 | bf_set(pde6_apptagval, pde6, 0); | |
e2a0a9d6 | 1678 | |
bc73905a | 1679 | /* Endianness conversion if necessary for PDE6 */ |
589a52d6 JS |
1680 | pde6->word0 = cpu_to_le32(pde6->word0); |
1681 | pde6->word1 = cpu_to_le32(pde6->word1); | |
1682 | pde6->word2 = cpu_to_le32(pde6->word2); | |
1683 | ||
6c8eea54 | 1684 | /* advance bpl and increment bde count */ |
e2a0a9d6 JS |
1685 | num_bde++; |
1686 | bpl++; | |
1687 | ||
1688 | /* assumption: caller has already run dma_map_sg on command data */ | |
1689 | scsi_for_each_sg(sc, sgde, datasegcnt, i) { | |
1690 | physaddr = sg_dma_address(sgde); | |
1691 | bpl->addrLow = le32_to_cpu(putPaddrLow(physaddr)); | |
1692 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(physaddr)); | |
1693 | bpl->tus.f.bdeSize = sg_dma_len(sgde); | |
1694 | if (datadir == DMA_TO_DEVICE) | |
1695 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
1696 | else | |
1697 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
1698 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
1699 | bpl++; | |
1700 | num_bde++; | |
1701 | } | |
1702 | ||
1703 | out: | |
1704 | return num_bde; | |
1705 | } | |
1706 | ||
acd6859b JS |
1707 | /** |
1708 | * lpfc_bg_setup_bpl_prot - Setup BlockGuard BPL with protection data | |
1709 | * @phba: The Hba for which this call is being executed. | |
1710 | * @sc: pointer to scsi command we're working on | |
1711 | * @bpl: pointer to buffer list for protection groups | |
1712 | * @datacnt: number of segments of data that have been dma mapped | |
1713 | * @protcnt: number of segment of protection data that have been dma mapped | |
1714 | * | |
1715 | * This function sets up BPL buffer list for protection groups of | |
1716 | * type LPFC_PG_TYPE_DIF | |
e2a0a9d6 JS |
1717 | * |
1718 | * This is usually used when DIFs are in their own buffers, | |
1719 | * separate from the data. The HBA can then by instructed | |
1720 | * to place the DIFs in the outgoing stream. For read operations, | |
1721 | * The HBA could extract the DIFs and place it in DIF buffers. | |
1722 | * | |
1723 | * The buffer list for this type consists of one or more of the | |
1724 | * protection groups described below: | |
1725 | * +-------------------------+ | |
6c8eea54 | 1726 | * start of first prot group --> | PDE_5 | |
e2a0a9d6 | 1727 | * +-------------------------+ |
6c8eea54 JS |
1728 | * | PDE_6 | |
1729 | * +-------------------------+ | |
1730 | * | PDE_7 (Prot BDE) | | |
e2a0a9d6 JS |
1731 | * +-------------------------+ |
1732 | * | Data BDE | | |
1733 | * +-------------------------+ | |
1734 | * |more Data BDE's ... (opt)| | |
1735 | * +-------------------------+ | |
6c8eea54 | 1736 | * start of new prot group --> | PDE_5 | |
e2a0a9d6 JS |
1737 | * +-------------------------+ |
1738 | * | ... | | |
1739 | * +-------------------------+ | |
1740 | * | |
e2a0a9d6 JS |
1741 | * Note: It is assumed that both data and protection s/g buffers have been |
1742 | * mapped for DMA | |
acd6859b JS |
1743 | * |
1744 | * Returns the number of BDEs added to the BPL. | |
1745 | **/ | |
e2a0a9d6 JS |
1746 | static int |
1747 | lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
1748 | struct ulp_bde64 *bpl, int datacnt, int protcnt) | |
1749 | { | |
1750 | struct scatterlist *sgde = NULL; /* s/g data entry */ | |
1751 | struct scatterlist *sgpe = NULL; /* s/g prot entry */ | |
6c8eea54 JS |
1752 | struct lpfc_pde5 *pde5 = NULL; |
1753 | struct lpfc_pde6 *pde6 = NULL; | |
7f86059a | 1754 | struct lpfc_pde7 *pde7 = NULL; |
e2a0a9d6 JS |
1755 | dma_addr_t dataphysaddr, protphysaddr; |
1756 | unsigned short curr_data = 0, curr_prot = 0; | |
7f86059a JS |
1757 | unsigned int split_offset; |
1758 | unsigned int protgroup_len, protgroup_offset = 0, protgroup_remainder; | |
e2a0a9d6 JS |
1759 | unsigned int protgrp_blks, protgrp_bytes; |
1760 | unsigned int remainder, subtotal; | |
6c8eea54 | 1761 | int status; |
e2a0a9d6 JS |
1762 | int datadir = sc->sc_data_direction; |
1763 | unsigned char pgdone = 0, alldone = 0; | |
1764 | unsigned blksize; | |
0829a19a | 1765 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 1766 | uint32_t rc; |
0829a19a | 1767 | #endif |
acd6859b | 1768 | uint32_t checking = 1; |
e2a0a9d6 | 1769 | uint32_t reftag; |
6c8eea54 | 1770 | uint8_t txop, rxop; |
e2a0a9d6 JS |
1771 | int num_bde = 0; |
1772 | ||
1773 | sgpe = scsi_prot_sglist(sc); | |
1774 | sgde = scsi_sglist(sc); | |
1775 | ||
1776 | if (!sgpe || !sgde) { | |
372c187b | 1777 | lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
32350664 | 1778 | "9020 Invalid s/g entry: data=x%px prot=x%px\n", |
acd6859b JS |
1779 | sgpe, sgde); |
1780 | return 0; | |
1781 | } | |
1782 | ||
1783 | status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop); | |
1784 | if (status) | |
1785 | goto out; | |
1786 | ||
1787 | /* extract some info from the scsi command */ | |
125c12f7 MP |
1788 | blksize = scsi_prot_interval(sc); |
1789 | reftag = scsi_prot_ref_tag(sc); | |
68a6a66c JS |
1790 | if (reftag == LPFC_INVALID_REFTAG) |
1791 | goto out; | |
acd6859b JS |
1792 | |
1793 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS | |
4ac9b226 | 1794 | rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); |
acd6859b | 1795 | if (rc) { |
9a6b09c0 | 1796 | if (rc & BG_ERR_SWAP) |
acd6859b | 1797 | lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); |
9a6b09c0 | 1798 | if (rc & BG_ERR_CHECK) |
acd6859b JS |
1799 | checking = 0; |
1800 | } | |
1801 | #endif | |
1802 | ||
1803 | split_offset = 0; | |
1804 | do { | |
96f7077f JS |
1805 | /* Check to see if we ran out of space */ |
1806 | if (num_bde >= (phba->cfg_total_seg_cnt - 2)) | |
1807 | return num_bde + 3; | |
1808 | ||
acd6859b JS |
1809 | /* setup PDE5 with what we have */ |
1810 | pde5 = (struct lpfc_pde5 *) bpl; | |
1811 | memset(pde5, 0, sizeof(struct lpfc_pde5)); | |
1812 | bf_set(pde5_type, pde5, LPFC_PDE5_DESCRIPTOR); | |
1813 | ||
1814 | /* Endianness conversion if necessary for PDE5 */ | |
1815 | pde5->word0 = cpu_to_le32(pde5->word0); | |
1816 | pde5->reftag = cpu_to_le32(reftag); | |
1817 | ||
1818 | /* advance bpl and increment bde count */ | |
1819 | num_bde++; | |
1820 | bpl++; | |
1821 | pde6 = (struct lpfc_pde6 *) bpl; | |
1822 | ||
1823 | /* setup PDE6 with the rest of the info */ | |
1824 | memset(pde6, 0, sizeof(struct lpfc_pde6)); | |
1825 | bf_set(pde6_type, pde6, LPFC_PDE6_DESCRIPTOR); | |
1826 | bf_set(pde6_optx, pde6, txop); | |
1827 | bf_set(pde6_oprx, pde6, rxop); | |
a6887e28 | 1828 | |
125c12f7 | 1829 | if (sc->prot_flags & SCSI_PROT_GUARD_CHECK) |
a6887e28 JS |
1830 | bf_set(pde6_ce, pde6, checking); |
1831 | else | |
1832 | bf_set(pde6_ce, pde6, 0); | |
1833 | ||
125c12f7 | 1834 | if (sc->prot_flags & SCSI_PROT_REF_CHECK) |
a6887e28 JS |
1835 | bf_set(pde6_re, pde6, checking); |
1836 | else | |
1837 | bf_set(pde6_re, pde6, 0); | |
1838 | ||
acd6859b JS |
1839 | bf_set(pde6_ai, pde6, 1); |
1840 | bf_set(pde6_ae, pde6, 0); | |
1841 | bf_set(pde6_apptagval, pde6, 0); | |
1842 | ||
1843 | /* Endianness conversion if necessary for PDE6 */ | |
1844 | pde6->word0 = cpu_to_le32(pde6->word0); | |
1845 | pde6->word1 = cpu_to_le32(pde6->word1); | |
1846 | pde6->word2 = cpu_to_le32(pde6->word2); | |
1847 | ||
1848 | /* advance bpl and increment bde count */ | |
1849 | num_bde++; | |
1850 | bpl++; | |
1851 | ||
1852 | /* setup the first BDE that points to protection buffer */ | |
1853 | protphysaddr = sg_dma_address(sgpe) + protgroup_offset; | |
1854 | protgroup_len = sg_dma_len(sgpe) - protgroup_offset; | |
1855 | ||
1856 | /* must be integer multiple of the DIF block length */ | |
1857 | BUG_ON(protgroup_len % 8); | |
1858 | ||
1859 | pde7 = (struct lpfc_pde7 *) bpl; | |
1860 | memset(pde7, 0, sizeof(struct lpfc_pde7)); | |
1861 | bf_set(pde7_type, pde7, LPFC_PDE7_DESCRIPTOR); | |
1862 | ||
1863 | pde7->addrHigh = le32_to_cpu(putPaddrHigh(protphysaddr)); | |
1864 | pde7->addrLow = le32_to_cpu(putPaddrLow(protphysaddr)); | |
1865 | ||
1866 | protgrp_blks = protgroup_len / 8; | |
1867 | protgrp_bytes = protgrp_blks * blksize; | |
1868 | ||
1869 | /* check if this pde is crossing the 4K boundary; if so split */ | |
1870 | if ((pde7->addrLow & 0xfff) + protgroup_len > 0x1000) { | |
1871 | protgroup_remainder = 0x1000 - (pde7->addrLow & 0xfff); | |
1872 | protgroup_offset += protgroup_remainder; | |
1873 | protgrp_blks = protgroup_remainder / 8; | |
1874 | protgrp_bytes = protgrp_blks * blksize; | |
1875 | } else { | |
1876 | protgroup_offset = 0; | |
1877 | curr_prot++; | |
1878 | } | |
1879 | ||
1880 | num_bde++; | |
1881 | ||
1882 | /* setup BDE's for data blocks associated with DIF data */ | |
1883 | pgdone = 0; | |
1884 | subtotal = 0; /* total bytes processed for current prot grp */ | |
1885 | while (!pgdone) { | |
96f7077f JS |
1886 | /* Check to see if we ran out of space */ |
1887 | if (num_bde >= phba->cfg_total_seg_cnt) | |
1888 | return num_bde + 1; | |
1889 | ||
acd6859b | 1890 | if (!sgde) { |
372c187b | 1891 | lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
acd6859b JS |
1892 | "9065 BLKGRD:%s Invalid data segment\n", |
1893 | __func__); | |
1894 | return 0; | |
1895 | } | |
1896 | bpl++; | |
1897 | dataphysaddr = sg_dma_address(sgde) + split_offset; | |
1898 | bpl->addrLow = le32_to_cpu(putPaddrLow(dataphysaddr)); | |
1899 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(dataphysaddr)); | |
1900 | ||
1901 | remainder = sg_dma_len(sgde) - split_offset; | |
1902 | ||
1903 | if ((subtotal + remainder) <= protgrp_bytes) { | |
1904 | /* we can use this whole buffer */ | |
1905 | bpl->tus.f.bdeSize = remainder; | |
1906 | split_offset = 0; | |
1907 | ||
1908 | if ((subtotal + remainder) == protgrp_bytes) | |
1909 | pgdone = 1; | |
1910 | } else { | |
1911 | /* must split this buffer with next prot grp */ | |
1912 | bpl->tus.f.bdeSize = protgrp_bytes - subtotal; | |
1913 | split_offset += bpl->tus.f.bdeSize; | |
1914 | } | |
1915 | ||
1916 | subtotal += bpl->tus.f.bdeSize; | |
1917 | ||
1918 | if (datadir == DMA_TO_DEVICE) | |
1919 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
1920 | else | |
1921 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
1922 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
1923 | ||
1924 | num_bde++; | |
1925 | curr_data++; | |
1926 | ||
1927 | if (split_offset) | |
1928 | break; | |
1929 | ||
1930 | /* Move to the next s/g segment if possible */ | |
1931 | sgde = sg_next(sgde); | |
1932 | ||
1933 | } | |
1934 | ||
1935 | if (protgroup_offset) { | |
1936 | /* update the reference tag */ | |
1937 | reftag += protgrp_blks; | |
1938 | bpl++; | |
1939 | continue; | |
1940 | } | |
1941 | ||
1942 | /* are we done ? */ | |
1943 | if (curr_prot == protcnt) { | |
1944 | alldone = 1; | |
1945 | } else if (curr_prot < protcnt) { | |
1946 | /* advance to next prot buffer */ | |
1947 | sgpe = sg_next(sgpe); | |
1948 | bpl++; | |
1949 | ||
1950 | /* update the reference tag */ | |
1951 | reftag += protgrp_blks; | |
1952 | } else { | |
1953 | /* if we're here, we have a bug */ | |
372c187b DK |
1954 | lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
1955 | "9054 BLKGRD: bug in %s\n", __func__); | |
acd6859b JS |
1956 | } |
1957 | ||
1958 | } while (!alldone); | |
1959 | out: | |
1960 | ||
1961 | return num_bde; | |
1962 | } | |
1963 | ||
1964 | /** | |
1965 | * lpfc_bg_setup_sgl - Setup BlockGuard SGL with no protection data | |
1966 | * @phba: The Hba for which this call is being executed. | |
1967 | * @sc: pointer to scsi command we're working on | |
1968 | * @sgl: pointer to buffer list for protection groups | |
eceee00e LJ |
1969 | * @datasegcnt: number of segments of data that have been dma mapped |
1970 | * @lpfc_cmd: lpfc scsi command object pointer. | |
acd6859b JS |
1971 | * |
1972 | * This function sets up SGL buffer list for protection groups of | |
1973 | * type LPFC_PG_TYPE_NO_DIF | |
1974 | * | |
1975 | * This is usually used when the HBA is instructed to generate | |
1976 | * DIFs and insert them into data stream (or strip DIF from | |
1977 | * incoming data stream) | |
1978 | * | |
1979 | * The buffer list consists of just one protection group described | |
1980 | * below: | |
1981 | * +-------------------------+ | |
1982 | * start of prot group --> | DI_SEED | | |
1983 | * +-------------------------+ | |
1984 | * | Data SGE | | |
1985 | * +-------------------------+ | |
1986 | * |more Data SGE's ... (opt)| | |
1987 | * +-------------------------+ | |
1988 | * | |
1989 | * | |
1990 | * Note: Data s/g buffers have been dma mapped | |
1991 | * | |
1992 | * Returns the number of SGEs added to the SGL. | |
1993 | **/ | |
1994 | static int | |
1995 | lpfc_bg_setup_sgl(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
d79c9e9d JS |
1996 | struct sli4_sge *sgl, int datasegcnt, |
1997 | struct lpfc_io_buf *lpfc_cmd) | |
acd6859b JS |
1998 | { |
1999 | struct scatterlist *sgde = NULL; /* s/g data entry */ | |
2000 | struct sli4_sge_diseed *diseed = NULL; | |
2001 | dma_addr_t physaddr; | |
2002 | int i = 0, num_sge = 0, status; | |
acd6859b | 2003 | uint32_t reftag; |
acd6859b | 2004 | uint8_t txop, rxop; |
0829a19a | 2005 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 2006 | uint32_t rc; |
0829a19a | 2007 | #endif |
acd6859b JS |
2008 | uint32_t checking = 1; |
2009 | uint32_t dma_len; | |
2010 | uint32_t dma_offset = 0; | |
d79c9e9d JS |
2011 | struct sli4_hybrid_sgl *sgl_xtra = NULL; |
2012 | int j; | |
2013 | bool lsp_just_set = false; | |
acd6859b JS |
2014 | |
2015 | status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop); | |
2016 | if (status) | |
2017 | goto out; | |
2018 | ||
2019 | /* extract some info from the scsi command for pde*/ | |
125c12f7 | 2020 | reftag = scsi_prot_ref_tag(sc); |
68a6a66c JS |
2021 | if (reftag == LPFC_INVALID_REFTAG) |
2022 | goto out; | |
acd6859b JS |
2023 | |
2024 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS | |
4ac9b226 | 2025 | rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); |
acd6859b | 2026 | if (rc) { |
9a6b09c0 | 2027 | if (rc & BG_ERR_SWAP) |
acd6859b | 2028 | lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); |
9a6b09c0 | 2029 | if (rc & BG_ERR_CHECK) |
acd6859b JS |
2030 | checking = 0; |
2031 | } | |
2032 | #endif | |
2033 | ||
2034 | /* setup DISEED with what we have */ | |
2035 | diseed = (struct sli4_sge_diseed *) sgl; | |
2036 | memset(diseed, 0, sizeof(struct sli4_sge_diseed)); | |
2037 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DISEED); | |
2038 | ||
2039 | /* Endianness conversion if necessary */ | |
2040 | diseed->ref_tag = cpu_to_le32(reftag); | |
2041 | diseed->ref_tag_tran = diseed->ref_tag; | |
2042 | ||
a6887e28 JS |
2043 | /* |
2044 | * We only need to check the data on READs, for WRITEs | |
2045 | * protection data is automatically generated, not checked. | |
2046 | */ | |
2047 | if (sc->sc_data_direction == DMA_FROM_DEVICE) { | |
125c12f7 | 2048 | if (sc->prot_flags & SCSI_PROT_GUARD_CHECK) |
a6887e28 JS |
2049 | bf_set(lpfc_sli4_sge_dif_ce, diseed, checking); |
2050 | else | |
2051 | bf_set(lpfc_sli4_sge_dif_ce, diseed, 0); | |
2052 | ||
125c12f7 | 2053 | if (sc->prot_flags & SCSI_PROT_REF_CHECK) |
a6887e28 JS |
2054 | bf_set(lpfc_sli4_sge_dif_re, diseed, checking); |
2055 | else | |
2056 | bf_set(lpfc_sli4_sge_dif_re, diseed, 0); | |
2057 | } | |
2058 | ||
acd6859b JS |
2059 | /* setup DISEED with the rest of the info */ |
2060 | bf_set(lpfc_sli4_sge_dif_optx, diseed, txop); | |
2061 | bf_set(lpfc_sli4_sge_dif_oprx, diseed, rxop); | |
a6887e28 | 2062 | |
acd6859b JS |
2063 | bf_set(lpfc_sli4_sge_dif_ai, diseed, 1); |
2064 | bf_set(lpfc_sli4_sge_dif_me, diseed, 0); | |
2065 | ||
2066 | /* Endianness conversion if necessary for DISEED */ | |
2067 | diseed->word2 = cpu_to_le32(diseed->word2); | |
2068 | diseed->word3 = cpu_to_le32(diseed->word3); | |
2069 | ||
2070 | /* advance bpl and increment sge count */ | |
2071 | num_sge++; | |
2072 | sgl++; | |
2073 | ||
2074 | /* assumption: caller has already run dma_map_sg on command data */ | |
d79c9e9d JS |
2075 | sgde = scsi_sglist(sc); |
2076 | j = 3; | |
2077 | for (i = 0; i < datasegcnt; i++) { | |
2078 | /* clear it */ | |
2079 | sgl->word2 = 0; | |
acd6859b | 2080 | |
d79c9e9d JS |
2081 | /* do we need to expand the segment */ |
2082 | if (!lsp_just_set && !((j + 1) % phba->border_sge_num) && | |
2083 | ((datasegcnt - 1) != i)) { | |
2084 | /* set LSP type */ | |
2085 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_LSP); | |
2086 | ||
2087 | sgl_xtra = lpfc_get_sgl_per_hdwq(phba, lpfc_cmd); | |
2088 | ||
2089 | if (unlikely(!sgl_xtra)) { | |
2090 | lpfc_cmd->seg_cnt = 0; | |
2091 | return 0; | |
2092 | } | |
2093 | sgl->addr_lo = cpu_to_le32(putPaddrLow( | |
2094 | sgl_xtra->dma_phys_sgl)); | |
2095 | sgl->addr_hi = cpu_to_le32(putPaddrHigh( | |
2096 | sgl_xtra->dma_phys_sgl)); | |
2097 | ||
2098 | } else { | |
2099 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA); | |
2100 | } | |
2101 | ||
2102 | if (!(bf_get(lpfc_sli4_sge_type, sgl) & LPFC_SGE_TYPE_LSP)) { | |
2103 | if ((datasegcnt - 1) == i) | |
2104 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
2105 | physaddr = sg_dma_address(sgde); | |
2106 | dma_len = sg_dma_len(sgde); | |
2107 | sgl->addr_lo = cpu_to_le32(putPaddrLow(physaddr)); | |
2108 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(physaddr)); | |
2109 | ||
2110 | bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); | |
2111 | sgl->word2 = cpu_to_le32(sgl->word2); | |
2112 | sgl->sge_len = cpu_to_le32(dma_len); | |
2113 | ||
2114 | dma_offset += dma_len; | |
2115 | sgde = sg_next(sgde); | |
2116 | ||
2117 | sgl++; | |
2118 | num_sge++; | |
2119 | lsp_just_set = false; | |
2120 | ||
2121 | } else { | |
2122 | sgl->word2 = cpu_to_le32(sgl->word2); | |
2123 | sgl->sge_len = cpu_to_le32(phba->cfg_sg_dma_buf_size); | |
2124 | ||
2125 | sgl = (struct sli4_sge *)sgl_xtra->dma_sgl; | |
2126 | i = i - 1; | |
2127 | ||
2128 | lsp_just_set = true; | |
2129 | } | |
2130 | ||
2131 | j++; | |
acd6859b | 2132 | |
acd6859b JS |
2133 | } |
2134 | ||
2135 | out: | |
2136 | return num_sge; | |
2137 | } | |
2138 | ||
2139 | /** | |
2140 | * lpfc_bg_setup_sgl_prot - Setup BlockGuard SGL with protection data | |
2141 | * @phba: The Hba for which this call is being executed. | |
2142 | * @sc: pointer to scsi command we're working on | |
2143 | * @sgl: pointer to buffer list for protection groups | |
2144 | * @datacnt: number of segments of data that have been dma mapped | |
2145 | * @protcnt: number of segment of protection data that have been dma mapped | |
eceee00e | 2146 | * @lpfc_cmd: lpfc scsi command object pointer. |
acd6859b JS |
2147 | * |
2148 | * This function sets up SGL buffer list for protection groups of | |
2149 | * type LPFC_PG_TYPE_DIF | |
2150 | * | |
2151 | * This is usually used when DIFs are in their own buffers, | |
2152 | * separate from the data. The HBA can then by instructed | |
2153 | * to place the DIFs in the outgoing stream. For read operations, | |
2154 | * The HBA could extract the DIFs and place it in DIF buffers. | |
2155 | * | |
2156 | * The buffer list for this type consists of one or more of the | |
2157 | * protection groups described below: | |
2158 | * +-------------------------+ | |
2159 | * start of first prot group --> | DISEED | | |
2160 | * +-------------------------+ | |
2161 | * | DIF (Prot SGE) | | |
2162 | * +-------------------------+ | |
2163 | * | Data SGE | | |
2164 | * +-------------------------+ | |
2165 | * |more Data SGE's ... (opt)| | |
2166 | * +-------------------------+ | |
2167 | * start of new prot group --> | DISEED | | |
2168 | * +-------------------------+ | |
2169 | * | ... | | |
2170 | * +-------------------------+ | |
2171 | * | |
2172 | * Note: It is assumed that both data and protection s/g buffers have been | |
2173 | * mapped for DMA | |
2174 | * | |
2175 | * Returns the number of SGEs added to the SGL. | |
2176 | **/ | |
2177 | static int | |
2178 | lpfc_bg_setup_sgl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
d79c9e9d JS |
2179 | struct sli4_sge *sgl, int datacnt, int protcnt, |
2180 | struct lpfc_io_buf *lpfc_cmd) | |
acd6859b JS |
2181 | { |
2182 | struct scatterlist *sgde = NULL; /* s/g data entry */ | |
2183 | struct scatterlist *sgpe = NULL; /* s/g prot entry */ | |
2184 | struct sli4_sge_diseed *diseed = NULL; | |
2185 | dma_addr_t dataphysaddr, protphysaddr; | |
2186 | unsigned short curr_data = 0, curr_prot = 0; | |
2187 | unsigned int split_offset; | |
2188 | unsigned int protgroup_len, protgroup_offset = 0, protgroup_remainder; | |
2189 | unsigned int protgrp_blks, protgrp_bytes; | |
2190 | unsigned int remainder, subtotal; | |
2191 | int status; | |
2192 | unsigned char pgdone = 0, alldone = 0; | |
2193 | unsigned blksize; | |
2194 | uint32_t reftag; | |
2195 | uint8_t txop, rxop; | |
2196 | uint32_t dma_len; | |
0829a19a | 2197 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 2198 | uint32_t rc; |
0829a19a | 2199 | #endif |
acd6859b JS |
2200 | uint32_t checking = 1; |
2201 | uint32_t dma_offset = 0; | |
d79c9e9d JS |
2202 | int num_sge = 0, j = 2; |
2203 | struct sli4_hybrid_sgl *sgl_xtra = NULL; | |
acd6859b JS |
2204 | |
2205 | sgpe = scsi_prot_sglist(sc); | |
2206 | sgde = scsi_sglist(sc); | |
2207 | ||
2208 | if (!sgpe || !sgde) { | |
372c187b | 2209 | lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
32350664 | 2210 | "9082 Invalid s/g entry: data=x%px prot=x%px\n", |
e2a0a9d6 JS |
2211 | sgpe, sgde); |
2212 | return 0; | |
2213 | } | |
2214 | ||
6c8eea54 JS |
2215 | status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop); |
2216 | if (status) | |
e2a0a9d6 JS |
2217 | goto out; |
2218 | ||
6c8eea54 | 2219 | /* extract some info from the scsi command */ |
125c12f7 MP |
2220 | blksize = scsi_prot_interval(sc); |
2221 | reftag = scsi_prot_ref_tag(sc); | |
68a6a66c JS |
2222 | if (reftag == LPFC_INVALID_REFTAG) |
2223 | goto out; | |
e2a0a9d6 | 2224 | |
f9bb2da1 | 2225 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
4ac9b226 | 2226 | rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); |
acd6859b | 2227 | if (rc) { |
9a6b09c0 | 2228 | if (rc & BG_ERR_SWAP) |
acd6859b | 2229 | lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); |
9a6b09c0 | 2230 | if (rc & BG_ERR_CHECK) |
acd6859b JS |
2231 | checking = 0; |
2232 | } | |
f9bb2da1 JS |
2233 | #endif |
2234 | ||
e2a0a9d6 JS |
2235 | split_offset = 0; |
2236 | do { | |
96f7077f | 2237 | /* Check to see if we ran out of space */ |
d79c9e9d JS |
2238 | if ((num_sge >= (phba->cfg_total_seg_cnt - 2)) && |
2239 | !(phba->cfg_xpsgl)) | |
96f7077f JS |
2240 | return num_sge + 3; |
2241 | ||
d79c9e9d JS |
2242 | /* DISEED and DIF have to be together */ |
2243 | if (!((j + 1) % phba->border_sge_num) || | |
2244 | !((j + 2) % phba->border_sge_num) || | |
2245 | !((j + 3) % phba->border_sge_num)) { | |
2246 | sgl->word2 = 0; | |
2247 | ||
2248 | /* set LSP type */ | |
2249 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_LSP); | |
2250 | ||
2251 | sgl_xtra = lpfc_get_sgl_per_hdwq(phba, lpfc_cmd); | |
2252 | ||
2253 | if (unlikely(!sgl_xtra)) { | |
2254 | goto out; | |
2255 | } else { | |
2256 | sgl->addr_lo = cpu_to_le32(putPaddrLow( | |
2257 | sgl_xtra->dma_phys_sgl)); | |
2258 | sgl->addr_hi = cpu_to_le32(putPaddrHigh( | |
2259 | sgl_xtra->dma_phys_sgl)); | |
2260 | } | |
2261 | ||
2262 | sgl->word2 = cpu_to_le32(sgl->word2); | |
2263 | sgl->sge_len = cpu_to_le32(phba->cfg_sg_dma_buf_size); | |
2264 | ||
2265 | sgl = (struct sli4_sge *)sgl_xtra->dma_sgl; | |
2266 | j = 0; | |
2267 | } | |
2268 | ||
acd6859b JS |
2269 | /* setup DISEED with what we have */ |
2270 | diseed = (struct sli4_sge_diseed *) sgl; | |
2271 | memset(diseed, 0, sizeof(struct sli4_sge_diseed)); | |
2272 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DISEED); | |
2273 | ||
2274 | /* Endianness conversion if necessary */ | |
2275 | diseed->ref_tag = cpu_to_le32(reftag); | |
2276 | diseed->ref_tag_tran = diseed->ref_tag; | |
2277 | ||
125c12f7 | 2278 | if (sc->prot_flags & SCSI_PROT_GUARD_CHECK) { |
a6887e28 | 2279 | bf_set(lpfc_sli4_sge_dif_ce, diseed, checking); |
a6887e28 JS |
2280 | } else { |
2281 | bf_set(lpfc_sli4_sge_dif_ce, diseed, 0); | |
2282 | /* | |
2283 | * When in this mode, the hardware will replace | |
2284 | * the guard tag from the host with a | |
2285 | * newly generated good CRC for the wire. | |
2286 | * Switch to raw mode here to avoid this | |
2287 | * behavior. What the host sends gets put on the wire. | |
2288 | */ | |
2289 | if (txop == BG_OP_IN_CRC_OUT_CRC) { | |
2290 | txop = BG_OP_RAW_MODE; | |
2291 | rxop = BG_OP_RAW_MODE; | |
2292 | } | |
2293 | } | |
2294 | ||
2295 | ||
125c12f7 | 2296 | if (sc->prot_flags & SCSI_PROT_REF_CHECK) |
a6887e28 JS |
2297 | bf_set(lpfc_sli4_sge_dif_re, diseed, checking); |
2298 | else | |
2299 | bf_set(lpfc_sli4_sge_dif_re, diseed, 0); | |
2300 | ||
acd6859b JS |
2301 | /* setup DISEED with the rest of the info */ |
2302 | bf_set(lpfc_sli4_sge_dif_optx, diseed, txop); | |
2303 | bf_set(lpfc_sli4_sge_dif_oprx, diseed, rxop); | |
a6887e28 | 2304 | |
acd6859b JS |
2305 | bf_set(lpfc_sli4_sge_dif_ai, diseed, 1); |
2306 | bf_set(lpfc_sli4_sge_dif_me, diseed, 0); | |
2307 | ||
2308 | /* Endianness conversion if necessary for DISEED */ | |
2309 | diseed->word2 = cpu_to_le32(diseed->word2); | |
2310 | diseed->word3 = cpu_to_le32(diseed->word3); | |
2311 | ||
2312 | /* advance sgl and increment bde count */ | |
2313 | num_sge++; | |
d79c9e9d | 2314 | |
acd6859b | 2315 | sgl++; |
d79c9e9d | 2316 | j++; |
e2a0a9d6 JS |
2317 | |
2318 | /* setup the first BDE that points to protection buffer */ | |
7f86059a JS |
2319 | protphysaddr = sg_dma_address(sgpe) + protgroup_offset; |
2320 | protgroup_len = sg_dma_len(sgpe) - protgroup_offset; | |
e2a0a9d6 | 2321 | |
e2a0a9d6 JS |
2322 | /* must be integer multiple of the DIF block length */ |
2323 | BUG_ON(protgroup_len % 8); | |
2324 | ||
acd6859b JS |
2325 | /* Now setup DIF SGE */ |
2326 | sgl->word2 = 0; | |
2327 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DIF); | |
2328 | sgl->addr_hi = le32_to_cpu(putPaddrHigh(protphysaddr)); | |
2329 | sgl->addr_lo = le32_to_cpu(putPaddrLow(protphysaddr)); | |
2330 | sgl->word2 = cpu_to_le32(sgl->word2); | |
d79c9e9d | 2331 | sgl->sge_len = 0; |
7f86059a | 2332 | |
e2a0a9d6 JS |
2333 | protgrp_blks = protgroup_len / 8; |
2334 | protgrp_bytes = protgrp_blks * blksize; | |
2335 | ||
acd6859b JS |
2336 | /* check if DIF SGE is crossing the 4K boundary; if so split */ |
2337 | if ((sgl->addr_lo & 0xfff) + protgroup_len > 0x1000) { | |
2338 | protgroup_remainder = 0x1000 - (sgl->addr_lo & 0xfff); | |
7f86059a JS |
2339 | protgroup_offset += protgroup_remainder; |
2340 | protgrp_blks = protgroup_remainder / 8; | |
7c56b9fd | 2341 | protgrp_bytes = protgrp_blks * blksize; |
7f86059a JS |
2342 | } else { |
2343 | protgroup_offset = 0; | |
2344 | curr_prot++; | |
2345 | } | |
e2a0a9d6 | 2346 | |
acd6859b | 2347 | num_sge++; |
e2a0a9d6 | 2348 | |
acd6859b | 2349 | /* setup SGE's for data blocks associated with DIF data */ |
e2a0a9d6 JS |
2350 | pgdone = 0; |
2351 | subtotal = 0; /* total bytes processed for current prot grp */ | |
d79c9e9d JS |
2352 | |
2353 | sgl++; | |
2354 | j++; | |
2355 | ||
e2a0a9d6 | 2356 | while (!pgdone) { |
96f7077f | 2357 | /* Check to see if we ran out of space */ |
d79c9e9d JS |
2358 | if ((num_sge >= phba->cfg_total_seg_cnt) && |
2359 | !phba->cfg_xpsgl) | |
96f7077f JS |
2360 | return num_sge + 1; |
2361 | ||
e2a0a9d6 | 2362 | if (!sgde) { |
372c187b | 2363 | lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
acd6859b | 2364 | "9086 BLKGRD:%s Invalid data segment\n", |
e2a0a9d6 JS |
2365 | __func__); |
2366 | return 0; | |
2367 | } | |
e2a0a9d6 | 2368 | |
d79c9e9d JS |
2369 | if (!((j + 1) % phba->border_sge_num)) { |
2370 | sgl->word2 = 0; | |
e2a0a9d6 | 2371 | |
d79c9e9d JS |
2372 | /* set LSP type */ |
2373 | bf_set(lpfc_sli4_sge_type, sgl, | |
2374 | LPFC_SGE_TYPE_LSP); | |
e2a0a9d6 | 2375 | |
d79c9e9d JS |
2376 | sgl_xtra = lpfc_get_sgl_per_hdwq(phba, |
2377 | lpfc_cmd); | |
2378 | ||
2379 | if (unlikely(!sgl_xtra)) { | |
2380 | goto out; | |
2381 | } else { | |
2382 | sgl->addr_lo = cpu_to_le32( | |
2383 | putPaddrLow(sgl_xtra->dma_phys_sgl)); | |
2384 | sgl->addr_hi = cpu_to_le32( | |
2385 | putPaddrHigh(sgl_xtra->dma_phys_sgl)); | |
2386 | } | |
2387 | ||
2388 | sgl->word2 = cpu_to_le32(sgl->word2); | |
2389 | sgl->sge_len = cpu_to_le32( | |
2390 | phba->cfg_sg_dma_buf_size); | |
2391 | ||
2392 | sgl = (struct sli4_sge *)sgl_xtra->dma_sgl; | |
e2a0a9d6 | 2393 | } else { |
d79c9e9d JS |
2394 | dataphysaddr = sg_dma_address(sgde) + |
2395 | split_offset; | |
e2a0a9d6 | 2396 | |
d79c9e9d | 2397 | remainder = sg_dma_len(sgde) - split_offset; |
e2a0a9d6 | 2398 | |
d79c9e9d JS |
2399 | if ((subtotal + remainder) <= protgrp_bytes) { |
2400 | /* we can use this whole buffer */ | |
2401 | dma_len = remainder; | |
2402 | split_offset = 0; | |
e2a0a9d6 | 2403 | |
d79c9e9d JS |
2404 | if ((subtotal + remainder) == |
2405 | protgrp_bytes) | |
2406 | pgdone = 1; | |
2407 | } else { | |
2408 | /* must split this buffer with next | |
2409 | * prot grp | |
2410 | */ | |
2411 | dma_len = protgrp_bytes - subtotal; | |
2412 | split_offset += dma_len; | |
2413 | } | |
acd6859b | 2414 | |
d79c9e9d | 2415 | subtotal += dma_len; |
e2a0a9d6 | 2416 | |
d79c9e9d JS |
2417 | sgl->word2 = 0; |
2418 | sgl->addr_lo = cpu_to_le32(putPaddrLow( | |
2419 | dataphysaddr)); | |
2420 | sgl->addr_hi = cpu_to_le32(putPaddrHigh( | |
2421 | dataphysaddr)); | |
2422 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
2423 | bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); | |
2424 | bf_set(lpfc_sli4_sge_type, sgl, | |
2425 | LPFC_SGE_TYPE_DATA); | |
e2a0a9d6 | 2426 | |
d79c9e9d JS |
2427 | sgl->sge_len = cpu_to_le32(dma_len); |
2428 | dma_offset += dma_len; | |
2429 | ||
2430 | num_sge++; | |
2431 | curr_data++; | |
2432 | ||
2433 | if (split_offset) { | |
2434 | sgl++; | |
2435 | j++; | |
2436 | break; | |
2437 | } | |
2438 | ||
2439 | /* Move to the next s/g segment if possible */ | |
2440 | sgde = sg_next(sgde); | |
2441 | ||
2442 | sgl++; | |
2443 | } | |
2444 | ||
2445 | j++; | |
e2a0a9d6 JS |
2446 | } |
2447 | ||
7f86059a JS |
2448 | if (protgroup_offset) { |
2449 | /* update the reference tag */ | |
2450 | reftag += protgrp_blks; | |
7f86059a JS |
2451 | continue; |
2452 | } | |
2453 | ||
e2a0a9d6 JS |
2454 | /* are we done ? */ |
2455 | if (curr_prot == protcnt) { | |
d79c9e9d JS |
2456 | /* mark the last SGL */ |
2457 | sgl--; | |
acd6859b | 2458 | bf_set(lpfc_sli4_sge_last, sgl, 1); |
e2a0a9d6 JS |
2459 | alldone = 1; |
2460 | } else if (curr_prot < protcnt) { | |
2461 | /* advance to next prot buffer */ | |
2462 | sgpe = sg_next(sgpe); | |
e2a0a9d6 JS |
2463 | |
2464 | /* update the reference tag */ | |
2465 | reftag += protgrp_blks; | |
2466 | } else { | |
2467 | /* if we're here, we have a bug */ | |
372c187b DK |
2468 | lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
2469 | "9085 BLKGRD: bug in %s\n", __func__); | |
e2a0a9d6 JS |
2470 | } |
2471 | ||
2472 | } while (!alldone); | |
acd6859b | 2473 | |
e2a0a9d6 JS |
2474 | out: |
2475 | ||
acd6859b | 2476 | return num_sge; |
e2a0a9d6 | 2477 | } |
7f86059a | 2478 | |
acd6859b JS |
2479 | /** |
2480 | * lpfc_prot_group_type - Get prtotection group type of SCSI command | |
2481 | * @phba: The Hba for which this call is being executed. | |
2482 | * @sc: pointer to scsi command we're working on | |
2483 | * | |
e2a0a9d6 JS |
2484 | * Given a SCSI command that supports DIF, determine composition of protection |
2485 | * groups involved in setting up buffer lists | |
2486 | * | |
acd6859b JS |
2487 | * Returns: Protection group type (with or without DIF) |
2488 | * | |
2489 | **/ | |
e2a0a9d6 JS |
2490 | static int |
2491 | lpfc_prot_group_type(struct lpfc_hba *phba, struct scsi_cmnd *sc) | |
2492 | { | |
2493 | int ret = LPFC_PG_TYPE_INVALID; | |
2494 | unsigned char op = scsi_get_prot_op(sc); | |
2495 | ||
2496 | switch (op) { | |
2497 | case SCSI_PROT_READ_STRIP: | |
2498 | case SCSI_PROT_WRITE_INSERT: | |
2499 | ret = LPFC_PG_TYPE_NO_DIF; | |
2500 | break; | |
2501 | case SCSI_PROT_READ_INSERT: | |
2502 | case SCSI_PROT_WRITE_STRIP: | |
2503 | case SCSI_PROT_READ_PASS: | |
2504 | case SCSI_PROT_WRITE_PASS: | |
e2a0a9d6 JS |
2505 | ret = LPFC_PG_TYPE_DIF_BUF; |
2506 | break; | |
2507 | default: | |
9c6aa9d7 | 2508 | if (phba) |
372c187b | 2509 | lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
9c6aa9d7 JS |
2510 | "9021 Unsupported protection op:%d\n", |
2511 | op); | |
e2a0a9d6 JS |
2512 | break; |
2513 | } | |
e2a0a9d6 JS |
2514 | return ret; |
2515 | } | |
2516 | ||
a6887e28 JS |
2517 | /** |
2518 | * lpfc_bg_scsi_adjust_dl - Adjust SCSI data length for BlockGuard | |
2519 | * @phba: The Hba for which this call is being executed. | |
2520 | * @lpfc_cmd: The scsi buffer which is going to be adjusted. | |
2521 | * | |
2522 | * Adjust the data length to account for how much data | |
2523 | * is actually on the wire. | |
2524 | * | |
2525 | * returns the adjusted data length | |
2526 | **/ | |
2527 | static int | |
2528 | lpfc_bg_scsi_adjust_dl(struct lpfc_hba *phba, | |
c490850a | 2529 | struct lpfc_io_buf *lpfc_cmd) |
a6887e28 JS |
2530 | { |
2531 | struct scsi_cmnd *sc = lpfc_cmd->pCmd; | |
2532 | int fcpdl; | |
2533 | ||
2534 | fcpdl = scsi_bufflen(sc); | |
2535 | ||
2536 | /* Check if there is protection data on the wire */ | |
2537 | if (sc->sc_data_direction == DMA_FROM_DEVICE) { | |
9c6aa9d7 | 2538 | /* Read check for protection data */ |
a6887e28 JS |
2539 | if (scsi_get_prot_op(sc) == SCSI_PROT_READ_INSERT) |
2540 | return fcpdl; | |
2541 | ||
2542 | } else { | |
9c6aa9d7 | 2543 | /* Write check for protection data */ |
a6887e28 JS |
2544 | if (scsi_get_prot_op(sc) == SCSI_PROT_WRITE_STRIP) |
2545 | return fcpdl; | |
2546 | } | |
2547 | ||
2548 | /* | |
2549 | * If we are in DIF Type 1 mode every data block has a 8 byte | |
9c6aa9d7 JS |
2550 | * DIF (trailer) attached to it. Must ajust FCP data length |
2551 | * to account for the protection data. | |
a6887e28 | 2552 | */ |
125c12f7 | 2553 | fcpdl += (fcpdl / scsi_prot_interval(sc)) * 8; |
a6887e28 JS |
2554 | |
2555 | return fcpdl; | |
2556 | } | |
2557 | ||
acd6859b JS |
2558 | /** |
2559 | * lpfc_bg_scsi_prep_dma_buf_s3 - DMA mapping for scsi buffer to SLI3 IF spec | |
2560 | * @phba: The Hba for which this call is being executed. | |
2561 | * @lpfc_cmd: The scsi buffer which is going to be prep'ed. | |
2562 | * | |
e2a0a9d6 JS |
2563 | * This is the protection/DIF aware version of |
2564 | * lpfc_scsi_prep_dma_buf(). It may be a good idea to combine the | |
5e0e2318 JS |
2565 | * two functions eventually, but for now, it's here. |
2566 | * RETURNS 0 - SUCCESS, | |
2567 | * 1 - Failed DMA map, retry. | |
2568 | * 2 - Invalid scsi cmd or prot-type. Do not rety. | |
acd6859b | 2569 | **/ |
e2a0a9d6 | 2570 | static int |
acd6859b | 2571 | lpfc_bg_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, |
c490850a | 2572 | struct lpfc_io_buf *lpfc_cmd) |
e2a0a9d6 JS |
2573 | { |
2574 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
2575 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
c490850a | 2576 | struct ulp_bde64 *bpl = (struct ulp_bde64 *)lpfc_cmd->dma_sgl; |
e2a0a9d6 JS |
2577 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; |
2578 | uint32_t num_bde = 0; | |
2579 | int datasegcnt, protsegcnt, datadir = scsi_cmnd->sc_data_direction; | |
2580 | int prot_group_type = 0; | |
a6887e28 | 2581 | int fcpdl; |
5e0e2318 | 2582 | int ret = 1; |
7c4042a4 | 2583 | struct lpfc_vport *vport = phba->pport; |
e2a0a9d6 JS |
2584 | |
2585 | /* | |
2586 | * Start the lpfc command prep by bumping the bpl beyond fcp_cmnd | |
2587 | * fcp_rsp regions to the first data bde entry | |
2588 | */ | |
2589 | bpl += 2; | |
2590 | if (scsi_sg_count(scsi_cmnd)) { | |
2591 | /* | |
2592 | * The driver stores the segment count returned from pci_map_sg | |
2593 | * because this a count of dma-mappings used to map the use_sg | |
2594 | * pages. They are not guaranteed to be the same for those | |
2595 | * architectures that implement an IOMMU. | |
2596 | */ | |
2597 | datasegcnt = dma_map_sg(&phba->pcidev->dev, | |
2598 | scsi_sglist(scsi_cmnd), | |
2599 | scsi_sg_count(scsi_cmnd), datadir); | |
2600 | if (unlikely(!datasegcnt)) | |
2601 | return 1; | |
2602 | ||
2603 | lpfc_cmd->seg_cnt = datasegcnt; | |
96f7077f JS |
2604 | |
2605 | /* First check if data segment count from SCSI Layer is good */ | |
5e0e2318 JS |
2606 | if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) { |
2607 | WARN_ON_ONCE(lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt); | |
2608 | ret = 2; | |
96f7077f | 2609 | goto err; |
5e0e2318 | 2610 | } |
e2a0a9d6 JS |
2611 | |
2612 | prot_group_type = lpfc_prot_group_type(phba, scsi_cmnd); | |
2613 | ||
2614 | switch (prot_group_type) { | |
2615 | case LPFC_PG_TYPE_NO_DIF: | |
96f7077f JS |
2616 | |
2617 | /* Here we need to add a PDE5 and PDE6 to the count */ | |
5e0e2318 JS |
2618 | if ((lpfc_cmd->seg_cnt + 2) > phba->cfg_total_seg_cnt) { |
2619 | ret = 2; | |
96f7077f | 2620 | goto err; |
5e0e2318 | 2621 | } |
96f7077f | 2622 | |
e2a0a9d6 JS |
2623 | num_bde = lpfc_bg_setup_bpl(phba, scsi_cmnd, bpl, |
2624 | datasegcnt); | |
c9404c9c | 2625 | /* we should have 2 or more entries in buffer list */ |
5e0e2318 JS |
2626 | if (num_bde < 2) { |
2627 | ret = 2; | |
e2a0a9d6 | 2628 | goto err; |
5e0e2318 | 2629 | } |
e2a0a9d6 | 2630 | break; |
96f7077f JS |
2631 | |
2632 | case LPFC_PG_TYPE_DIF_BUF: | |
e2a0a9d6 JS |
2633 | /* |
2634 | * This type indicates that protection buffers are | |
2635 | * passed to the driver, so that needs to be prepared | |
2636 | * for DMA | |
2637 | */ | |
2638 | protsegcnt = dma_map_sg(&phba->pcidev->dev, | |
2639 | scsi_prot_sglist(scsi_cmnd), | |
2640 | scsi_prot_sg_count(scsi_cmnd), datadir); | |
2641 | if (unlikely(!protsegcnt)) { | |
2642 | scsi_dma_unmap(scsi_cmnd); | |
2643 | return 1; | |
2644 | } | |
2645 | ||
2646 | lpfc_cmd->prot_seg_cnt = protsegcnt; | |
96f7077f JS |
2647 | |
2648 | /* | |
2649 | * There is a minimun of 4 BPLs used for every | |
2650 | * protection data segment. | |
2651 | */ | |
2652 | if ((lpfc_cmd->prot_seg_cnt * 4) > | |
5e0e2318 JS |
2653 | (phba->cfg_total_seg_cnt - 2)) { |
2654 | ret = 2; | |
96f7077f | 2655 | goto err; |
5e0e2318 | 2656 | } |
e2a0a9d6 JS |
2657 | |
2658 | num_bde = lpfc_bg_setup_bpl_prot(phba, scsi_cmnd, bpl, | |
2659 | datasegcnt, protsegcnt); | |
c9404c9c | 2660 | /* we should have 3 or more entries in buffer list */ |
96f7077f | 2661 | if ((num_bde < 3) || |
5e0e2318 JS |
2662 | (num_bde > phba->cfg_total_seg_cnt)) { |
2663 | ret = 2; | |
e2a0a9d6 | 2664 | goto err; |
5e0e2318 | 2665 | } |
e2a0a9d6 | 2666 | break; |
96f7077f | 2667 | |
e2a0a9d6 JS |
2668 | case LPFC_PG_TYPE_INVALID: |
2669 | default: | |
96f7077f JS |
2670 | scsi_dma_unmap(scsi_cmnd); |
2671 | lpfc_cmd->seg_cnt = 0; | |
2672 | ||
372c187b | 2673 | lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
e2a0a9d6 JS |
2674 | "9022 Unexpected protection group %i\n", |
2675 | prot_group_type); | |
5e0e2318 | 2676 | return 2; |
e2a0a9d6 JS |
2677 | } |
2678 | } | |
2679 | ||
2680 | /* | |
2681 | * Finish initializing those IOCB fields that are dependent on the | |
2682 | * scsi_cmnd request_buffer. Note that the bdeSize is explicitly | |
2683 | * reinitialized since all iocb memory resources are used many times | |
2684 | * for transmit, receive, and continuation bpl's. | |
2685 | */ | |
2686 | iocb_cmd->un.fcpi64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64)); | |
2687 | iocb_cmd->un.fcpi64.bdl.bdeSize += (num_bde * sizeof(struct ulp_bde64)); | |
2688 | iocb_cmd->ulpBdeCount = 1; | |
2689 | iocb_cmd->ulpLe = 1; | |
2690 | ||
a6887e28 | 2691 | fcpdl = lpfc_bg_scsi_adjust_dl(phba, lpfc_cmd); |
e2a0a9d6 JS |
2692 | fcp_cmnd->fcpDl = be32_to_cpu(fcpdl); |
2693 | ||
2694 | /* | |
2695 | * Due to difference in data length between DIF/non-DIF paths, | |
2696 | * we need to set word 4 of IOCB here | |
2697 | */ | |
2698 | iocb_cmd->un.fcpi.fcpi_parm = fcpdl; | |
2699 | ||
7c4042a4 JS |
2700 | /* |
2701 | * For First burst, we may need to adjust the initial transfer | |
2702 | * length for DIF | |
2703 | */ | |
2704 | if (iocb_cmd->un.fcpi.fcpi_XRdy && | |
2705 | (fcpdl < vport->cfg_first_burst_size)) | |
2706 | iocb_cmd->un.fcpi.fcpi_XRdy = fcpdl; | |
2707 | ||
dea3101e | 2708 | return 0; |
e2a0a9d6 | 2709 | err: |
96f7077f JS |
2710 | if (lpfc_cmd->seg_cnt) |
2711 | scsi_dma_unmap(scsi_cmnd); | |
2712 | if (lpfc_cmd->prot_seg_cnt) | |
2713 | dma_unmap_sg(&phba->pcidev->dev, scsi_prot_sglist(scsi_cmnd), | |
2714 | scsi_prot_sg_count(scsi_cmnd), | |
2715 | scsi_cmnd->sc_data_direction); | |
2716 | ||
372c187b | 2717 | lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
96f7077f JS |
2718 | "9023 Cannot setup S/G List for HBA" |
2719 | "IO segs %d/%d BPL %d SCSI %d: %d %d\n", | |
2720 | lpfc_cmd->seg_cnt, lpfc_cmd->prot_seg_cnt, | |
2721 | phba->cfg_total_seg_cnt, phba->cfg_sg_seg_cnt, | |
e2a0a9d6 | 2722 | prot_group_type, num_bde); |
96f7077f JS |
2723 | |
2724 | lpfc_cmd->seg_cnt = 0; | |
2725 | lpfc_cmd->prot_seg_cnt = 0; | |
5e0e2318 | 2726 | return ret; |
e2a0a9d6 JS |
2727 | } |
2728 | ||
737d4248 JS |
2729 | /* |
2730 | * This function calcuates the T10 DIF guard tag | |
2731 | * on the specified data using a CRC algorithmn | |
2732 | * using crc_t10dif. | |
2733 | */ | |
7bfe781e | 2734 | static uint16_t |
737d4248 JS |
2735 | lpfc_bg_crc(uint8_t *data, int count) |
2736 | { | |
2737 | uint16_t crc = 0; | |
2738 | uint16_t x; | |
2739 | ||
2740 | crc = crc_t10dif(data, count); | |
2741 | x = cpu_to_be16(crc); | |
2742 | return x; | |
2743 | } | |
2744 | ||
2745 | /* | |
2746 | * This function calcuates the T10 DIF guard tag | |
2747 | * on the specified data using a CSUM algorithmn | |
2748 | * using ip_compute_csum. | |
2749 | */ | |
7bfe781e | 2750 | static uint16_t |
737d4248 JS |
2751 | lpfc_bg_csum(uint8_t *data, int count) |
2752 | { | |
2753 | uint16_t ret; | |
2754 | ||
2755 | ret = ip_compute_csum(data, count); | |
2756 | return ret; | |
2757 | } | |
2758 | ||
2759 | /* | |
2760 | * This function examines the protection data to try to determine | |
2761 | * what type of T10-DIF error occurred. | |
2762 | */ | |
7bfe781e | 2763 | static void |
c490850a | 2764 | lpfc_calc_bg_err(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd) |
737d4248 JS |
2765 | { |
2766 | struct scatterlist *sgpe; /* s/g prot entry */ | |
2767 | struct scatterlist *sgde; /* s/g data entry */ | |
2768 | struct scsi_cmnd *cmd = lpfc_cmd->pCmd; | |
2769 | struct scsi_dif_tuple *src = NULL; | |
2770 | uint8_t *data_src = NULL; | |
db6f1c2f | 2771 | uint16_t guard_tag; |
737d4248 JS |
2772 | uint16_t start_app_tag, app_tag; |
2773 | uint32_t start_ref_tag, ref_tag; | |
2774 | int prot, protsegcnt; | |
2775 | int err_type, len, data_len; | |
2776 | int chk_ref, chk_app, chk_guard; | |
2777 | uint16_t sum; | |
2778 | unsigned blksize; | |
2779 | ||
2780 | err_type = BGS_GUARD_ERR_MASK; | |
2781 | sum = 0; | |
2782 | guard_tag = 0; | |
2783 | ||
2784 | /* First check to see if there is protection data to examine */ | |
2785 | prot = scsi_get_prot_op(cmd); | |
2786 | if ((prot == SCSI_PROT_READ_STRIP) || | |
2787 | (prot == SCSI_PROT_WRITE_INSERT) || | |
2788 | (prot == SCSI_PROT_NORMAL)) | |
2789 | goto out; | |
2790 | ||
2791 | /* Currently the driver just supports ref_tag and guard_tag checking */ | |
2792 | chk_ref = 1; | |
2793 | chk_app = 0; | |
2794 | chk_guard = 0; | |
2795 | ||
2796 | /* Setup a ptr to the protection data provided by the SCSI host */ | |
2797 | sgpe = scsi_prot_sglist(cmd); | |
2798 | protsegcnt = lpfc_cmd->prot_seg_cnt; | |
2799 | ||
2800 | if (sgpe && protsegcnt) { | |
2801 | ||
2802 | /* | |
2803 | * We will only try to verify guard tag if the segment | |
2804 | * data length is a multiple of the blksize. | |
2805 | */ | |
2806 | sgde = scsi_sglist(cmd); | |
125c12f7 | 2807 | blksize = scsi_prot_interval(cmd); |
737d4248 JS |
2808 | data_src = (uint8_t *)sg_virt(sgde); |
2809 | data_len = sgde->length; | |
2810 | if ((data_len & (blksize - 1)) == 0) | |
2811 | chk_guard = 1; | |
737d4248 | 2812 | |
e85d8f9f | 2813 | src = (struct scsi_dif_tuple *)sg_virt(sgpe); |
125c12f7 | 2814 | start_ref_tag = scsi_prot_ref_tag(cmd); |
68a6a66c JS |
2815 | if (start_ref_tag == LPFC_INVALID_REFTAG) |
2816 | goto out; | |
737d4248 | 2817 | start_app_tag = src->app_tag; |
737d4248 JS |
2818 | len = sgpe->length; |
2819 | while (src && protsegcnt) { | |
2820 | while (len) { | |
2821 | ||
2822 | /* | |
2823 | * First check to see if a protection data | |
2824 | * check is valid | |
2825 | */ | |
128b6f9f DM |
2826 | if ((src->ref_tag == T10_PI_REF_ESCAPE) || |
2827 | (src->app_tag == T10_PI_APP_ESCAPE)) { | |
737d4248 JS |
2828 | start_ref_tag++; |
2829 | goto skipit; | |
2830 | } | |
2831 | ||
9c6aa9d7 | 2832 | /* First Guard Tag checking */ |
737d4248 JS |
2833 | if (chk_guard) { |
2834 | guard_tag = src->guard_tag; | |
125c12f7 MP |
2835 | if (cmd->prot_flags |
2836 | & SCSI_PROT_IP_CHECKSUM) | |
737d4248 JS |
2837 | sum = lpfc_bg_csum(data_src, |
2838 | blksize); | |
2839 | else | |
2840 | sum = lpfc_bg_crc(data_src, | |
2841 | blksize); | |
2842 | if ((guard_tag != sum)) { | |
2843 | err_type = BGS_GUARD_ERR_MASK; | |
2844 | goto out; | |
2845 | } | |
2846 | } | |
9c6aa9d7 JS |
2847 | |
2848 | /* Reference Tag checking */ | |
2849 | ref_tag = be32_to_cpu(src->ref_tag); | |
2850 | if (chk_ref && (ref_tag != start_ref_tag)) { | |
2851 | err_type = BGS_REFTAG_ERR_MASK; | |
2852 | goto out; | |
2853 | } | |
2854 | start_ref_tag++; | |
2855 | ||
2856 | /* App Tag checking */ | |
2857 | app_tag = src->app_tag; | |
2858 | if (chk_app && (app_tag != start_app_tag)) { | |
2859 | err_type = BGS_APPTAG_ERR_MASK; | |
2860 | goto out; | |
2861 | } | |
737d4248 JS |
2862 | skipit: |
2863 | len -= sizeof(struct scsi_dif_tuple); | |
2864 | if (len < 0) | |
2865 | len = 0; | |
2866 | src++; | |
2867 | ||
2868 | data_src += blksize; | |
2869 | data_len -= blksize; | |
2870 | ||
2871 | /* | |
2872 | * Are we at the end of the Data segment? | |
2873 | * The data segment is only used for Guard | |
2874 | * tag checking. | |
2875 | */ | |
2876 | if (chk_guard && (data_len == 0)) { | |
2877 | chk_guard = 0; | |
2878 | sgde = sg_next(sgde); | |
2879 | if (!sgde) | |
2880 | goto out; | |
2881 | ||
2882 | data_src = (uint8_t *)sg_virt(sgde); | |
2883 | data_len = sgde->length; | |
2884 | if ((data_len & (blksize - 1)) == 0) | |
2885 | chk_guard = 1; | |
2886 | } | |
2887 | } | |
2888 | ||
2889 | /* Goto the next Protection data segment */ | |
2890 | sgpe = sg_next(sgpe); | |
2891 | if (sgpe) { | |
2892 | src = (struct scsi_dif_tuple *)sg_virt(sgpe); | |
2893 | len = sgpe->length; | |
2894 | } else { | |
2895 | src = NULL; | |
2896 | } | |
2897 | protsegcnt--; | |
2898 | } | |
2899 | } | |
2900 | out: | |
2901 | if (err_type == BGS_GUARD_ERR_MASK) { | |
f2b1e9c6 HR |
2902 | scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x1); |
2903 | set_host_byte(cmd, DID_ABORT); | |
737d4248 JS |
2904 | phba->bg_guard_err_cnt++; |
2905 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, | |
68a6a66c | 2906 | "9069 BLKGRD: reftag %x grd_tag err %x != %x\n", |
125c12f7 | 2907 | scsi_prot_ref_tag(cmd), |
737d4248 JS |
2908 | sum, guard_tag); |
2909 | ||
2910 | } else if (err_type == BGS_REFTAG_ERR_MASK) { | |
f2b1e9c6 HR |
2911 | scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x3); |
2912 | set_host_byte(cmd, DID_ABORT); | |
737d4248 JS |
2913 | |
2914 | phba->bg_reftag_err_cnt++; | |
2915 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, | |
68a6a66c | 2916 | "9066 BLKGRD: reftag %x ref_tag err %x != %x\n", |
125c12f7 | 2917 | scsi_prot_ref_tag(cmd), |
737d4248 JS |
2918 | ref_tag, start_ref_tag); |
2919 | ||
2920 | } else if (err_type == BGS_APPTAG_ERR_MASK) { | |
f2b1e9c6 HR |
2921 | scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x2); |
2922 | set_host_byte(cmd, DID_ABORT); | |
737d4248 JS |
2923 | |
2924 | phba->bg_apptag_err_cnt++; | |
2925 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, | |
68a6a66c | 2926 | "9041 BLKGRD: reftag %x app_tag err %x != %x\n", |
125c12f7 | 2927 | scsi_prot_ref_tag(cmd), |
737d4248 JS |
2928 | app_tag, start_app_tag); |
2929 | } | |
2930 | } | |
2931 | ||
96e209be JS |
2932 | /* |
2933 | * This function checks for BlockGuard errors detected by | |
2934 | * the HBA. In case of errors, the ASC/ASCQ fields in the | |
2935 | * sense buffer will be set accordingly, paired with | |
2936 | * ILLEGAL_REQUEST to signal to the kernel that the HBA | |
2937 | * detected corruption. | |
2938 | * | |
2939 | * Returns: | |
2940 | * 0 - No error found | |
2941 | * 1 - BlockGuard error found | |
2942 | * -1 - Internal error (bad profile, ...etc) | |
2943 | */ | |
2944 | static int | |
2945 | lpfc_sli4_parse_bg_err(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd, | |
2946 | struct lpfc_wcqe_complete *wcqe) | |
2947 | { | |
2948 | struct scsi_cmnd *cmd = lpfc_cmd->pCmd; | |
2949 | int ret = 0; | |
2950 | u32 status = bf_get(lpfc_wcqe_c_status, wcqe); | |
2951 | u32 bghm = 0; | |
2952 | u32 bgstat = 0; | |
2953 | u64 failing_sector = 0; | |
2954 | ||
2955 | if (status == CQE_STATUS_DI_ERROR) { | |
2956 | if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */ | |
2957 | bgstat |= BGS_GUARD_ERR_MASK; | |
2958 | if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* AppTag Check failed */ | |
2959 | bgstat |= BGS_APPTAG_ERR_MASK; | |
2960 | if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* RefTag Check failed */ | |
2961 | bgstat |= BGS_REFTAG_ERR_MASK; | |
2962 | ||
2963 | /* Check to see if there was any good data before the error */ | |
2964 | if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) { | |
2965 | bgstat |= BGS_HI_WATER_MARK_PRESENT_MASK; | |
2966 | bghm = wcqe->total_data_placed; | |
2967 | } | |
2968 | ||
2969 | /* | |
2970 | * Set ALL the error bits to indicate we don't know what | |
2971 | * type of error it is. | |
2972 | */ | |
2973 | if (!bgstat) | |
2974 | bgstat |= (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK | | |
2975 | BGS_GUARD_ERR_MASK); | |
2976 | } | |
2977 | ||
2978 | if (lpfc_bgs_get_guard_err(bgstat)) { | |
2979 | ret = 1; | |
2980 | ||
f2b1e9c6 HR |
2981 | scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x1); |
2982 | set_host_byte(cmd, DID_ABORT); | |
96e209be JS |
2983 | phba->bg_guard_err_cnt++; |
2984 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, | |
2985 | "9059 BLKGRD: Guard Tag error in cmd" | |
2986 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
2987 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
2988 | (unsigned long long)scsi_get_lba(cmd), | |
125c12f7 | 2989 | scsi_logical_block_count(cmd), bgstat, bghm); |
96e209be JS |
2990 | } |
2991 | ||
2992 | if (lpfc_bgs_get_reftag_err(bgstat)) { | |
2993 | ret = 1; | |
2994 | ||
f2b1e9c6 HR |
2995 | scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x3); |
2996 | set_host_byte(cmd, DID_ABORT); | |
96e209be JS |
2997 | |
2998 | phba->bg_reftag_err_cnt++; | |
2999 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, | |
3000 | "9060 BLKGRD: Ref Tag error in cmd" | |
3001 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
3002 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
3003 | (unsigned long long)scsi_get_lba(cmd), | |
125c12f7 | 3004 | scsi_logical_block_count(cmd), bgstat, bghm); |
96e209be JS |
3005 | } |
3006 | ||
3007 | if (lpfc_bgs_get_apptag_err(bgstat)) { | |
3008 | ret = 1; | |
3009 | ||
f2b1e9c6 HR |
3010 | scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x2); |
3011 | set_host_byte(cmd, DID_ABORT); | |
96e209be JS |
3012 | |
3013 | phba->bg_apptag_err_cnt++; | |
3014 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, | |
3015 | "9062 BLKGRD: App Tag error in cmd" | |
3016 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
3017 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
3018 | (unsigned long long)scsi_get_lba(cmd), | |
125c12f7 | 3019 | scsi_logical_block_count(cmd), bgstat, bghm); |
96e209be JS |
3020 | } |
3021 | ||
3022 | if (lpfc_bgs_get_hi_water_mark_present(bgstat)) { | |
3023 | /* | |
3024 | * setup sense data descriptor 0 per SPC-4 as an information | |
3025 | * field, and put the failing LBA in it. | |
3026 | * This code assumes there was also a guard/app/ref tag error | |
3027 | * indication. | |
3028 | */ | |
3029 | cmd->sense_buffer[7] = 0xc; /* Additional sense length */ | |
3030 | cmd->sense_buffer[8] = 0; /* Information descriptor type */ | |
3031 | cmd->sense_buffer[9] = 0xa; /* Additional descriptor length */ | |
3032 | cmd->sense_buffer[10] = 0x80; /* Validity bit */ | |
3033 | ||
3034 | /* bghm is a "on the wire" FC frame based count */ | |
3035 | switch (scsi_get_prot_op(cmd)) { | |
3036 | case SCSI_PROT_READ_INSERT: | |
3037 | case SCSI_PROT_WRITE_STRIP: | |
3038 | bghm /= cmd->device->sector_size; | |
3039 | break; | |
3040 | case SCSI_PROT_READ_STRIP: | |
3041 | case SCSI_PROT_WRITE_INSERT: | |
3042 | case SCSI_PROT_READ_PASS: | |
3043 | case SCSI_PROT_WRITE_PASS: | |
3044 | bghm /= (cmd->device->sector_size + | |
3045 | sizeof(struct scsi_dif_tuple)); | |
3046 | break; | |
3047 | } | |
3048 | ||
3049 | failing_sector = scsi_get_lba(cmd); | |
3050 | failing_sector += bghm; | |
3051 | ||
3052 | /* Descriptor Information */ | |
3053 | put_unaligned_be64(failing_sector, &cmd->sense_buffer[12]); | |
3054 | } | |
3055 | ||
3056 | if (!ret) { | |
3057 | /* No error was reported - problem in FW? */ | |
3058 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, | |
3059 | "9068 BLKGRD: Unknown error in cmd" | |
3060 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
3061 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
3062 | (unsigned long long)scsi_get_lba(cmd), | |
125c12f7 | 3063 | scsi_logical_block_count(cmd), bgstat, bghm); |
96e209be | 3064 | |
125c12f7 | 3065 | /* Calculate what type of error it was */ |
96e209be JS |
3066 | lpfc_calc_bg_err(phba, lpfc_cmd); |
3067 | } | |
3068 | return ret; | |
3069 | } | |
737d4248 | 3070 | |
e2a0a9d6 JS |
3071 | /* |
3072 | * This function checks for BlockGuard errors detected by | |
3073 | * the HBA. In case of errors, the ASC/ASCQ fields in the | |
3074 | * sense buffer will be set accordingly, paired with | |
3075 | * ILLEGAL_REQUEST to signal to the kernel that the HBA | |
3076 | * detected corruption. | |
3077 | * | |
3078 | * Returns: | |
3079 | * 0 - No error found | |
3080 | * 1 - BlockGuard error found | |
3081 | * -1 - Internal error (bad profile, ...etc) | |
3082 | */ | |
3083 | static int | |
c490850a JS |
3084 | lpfc_parse_bg_err(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd, |
3085 | struct lpfc_iocbq *pIocbOut) | |
e2a0a9d6 JS |
3086 | { |
3087 | struct scsi_cmnd *cmd = lpfc_cmd->pCmd; | |
3088 | struct sli3_bg_fields *bgf = &pIocbOut->iocb.unsli3.sli3_bg; | |
3089 | int ret = 0; | |
3090 | uint32_t bghm = bgf->bghm; | |
3091 | uint32_t bgstat = bgf->bgstat; | |
3092 | uint64_t failing_sector = 0; | |
3093 | ||
e2a0a9d6 | 3094 | if (lpfc_bgs_get_invalid_prof(bgstat)) { |
c6668cae | 3095 | cmd->result = DID_ERROR << 16; |
737d4248 | 3096 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
68a6a66c JS |
3097 | "9072 BLKGRD: Invalid BG Profile in cmd " |
3098 | "0x%x reftag 0x%x blk cnt 0x%x " | |
737d4248 | 3099 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], |
125c12f7 MP |
3100 | scsi_prot_ref_tag(cmd), |
3101 | scsi_logical_block_count(cmd), bgstat, bghm); | |
e2a0a9d6 JS |
3102 | ret = (-1); |
3103 | goto out; | |
3104 | } | |
3105 | ||
3106 | if (lpfc_bgs_get_uninit_dif_block(bgstat)) { | |
c6668cae | 3107 | cmd->result = DID_ERROR << 16; |
737d4248 | 3108 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
68a6a66c JS |
3109 | "9073 BLKGRD: Invalid BG PDIF Block in cmd " |
3110 | "0x%x reftag 0x%x blk cnt 0x%x " | |
737d4248 | 3111 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], |
125c12f7 MP |
3112 | scsi_prot_ref_tag(cmd), |
3113 | scsi_logical_block_count(cmd), bgstat, bghm); | |
e2a0a9d6 JS |
3114 | ret = (-1); |
3115 | goto out; | |
3116 | } | |
3117 | ||
3118 | if (lpfc_bgs_get_guard_err(bgstat)) { | |
3119 | ret = 1; | |
3120 | ||
f2b1e9c6 HR |
3121 | scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x1); |
3122 | set_host_byte(cmd, DID_ABORT); | |
e2a0a9d6 | 3123 | phba->bg_guard_err_cnt++; |
737d4248 | 3124 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
68a6a66c JS |
3125 | "9055 BLKGRD: Guard Tag error in cmd " |
3126 | "0x%x reftag 0x%x blk cnt 0x%x " | |
737d4248 | 3127 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], |
125c12f7 MP |
3128 | scsi_prot_ref_tag(cmd), |
3129 | scsi_logical_block_count(cmd), bgstat, bghm); | |
e2a0a9d6 JS |
3130 | } |
3131 | ||
3132 | if (lpfc_bgs_get_reftag_err(bgstat)) { | |
3133 | ret = 1; | |
3134 | ||
f2b1e9c6 HR |
3135 | scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x3); |
3136 | set_host_byte(cmd, DID_ABORT); | |
e2a0a9d6 JS |
3137 | |
3138 | phba->bg_reftag_err_cnt++; | |
737d4248 | 3139 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
68a6a66c JS |
3140 | "9056 BLKGRD: Ref Tag error in cmd " |
3141 | "0x%x reftag 0x%x blk cnt 0x%x " | |
737d4248 | 3142 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], |
125c12f7 MP |
3143 | scsi_prot_ref_tag(cmd), |
3144 | scsi_logical_block_count(cmd), bgstat, bghm); | |
e2a0a9d6 JS |
3145 | } |
3146 | ||
3147 | if (lpfc_bgs_get_apptag_err(bgstat)) { | |
3148 | ret = 1; | |
3149 | ||
f2b1e9c6 HR |
3150 | scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x2); |
3151 | set_host_byte(cmd, DID_ABORT); | |
e2a0a9d6 JS |
3152 | |
3153 | phba->bg_apptag_err_cnt++; | |
737d4248 | 3154 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
68a6a66c JS |
3155 | "9061 BLKGRD: App Tag error in cmd " |
3156 | "0x%x reftag 0x%x blk cnt 0x%x " | |
737d4248 | 3157 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], |
125c12f7 MP |
3158 | scsi_prot_ref_tag(cmd), |
3159 | scsi_logical_block_count(cmd), bgstat, bghm); | |
e2a0a9d6 JS |
3160 | } |
3161 | ||
3162 | if (lpfc_bgs_get_hi_water_mark_present(bgstat)) { | |
3163 | /* | |
3164 | * setup sense data descriptor 0 per SPC-4 as an information | |
7c56b9fd JS |
3165 | * field, and put the failing LBA in it. |
3166 | * This code assumes there was also a guard/app/ref tag error | |
3167 | * indication. | |
e2a0a9d6 | 3168 | */ |
7c56b9fd JS |
3169 | cmd->sense_buffer[7] = 0xc; /* Additional sense length */ |
3170 | cmd->sense_buffer[8] = 0; /* Information descriptor type */ | |
3171 | cmd->sense_buffer[9] = 0xa; /* Additional descriptor length */ | |
3172 | cmd->sense_buffer[10] = 0x80; /* Validity bit */ | |
acd6859b JS |
3173 | |
3174 | /* bghm is a "on the wire" FC frame based count */ | |
3175 | switch (scsi_get_prot_op(cmd)) { | |
3176 | case SCSI_PROT_READ_INSERT: | |
3177 | case SCSI_PROT_WRITE_STRIP: | |
3178 | bghm /= cmd->device->sector_size; | |
3179 | break; | |
3180 | case SCSI_PROT_READ_STRIP: | |
3181 | case SCSI_PROT_WRITE_INSERT: | |
3182 | case SCSI_PROT_READ_PASS: | |
3183 | case SCSI_PROT_WRITE_PASS: | |
3184 | bghm /= (cmd->device->sector_size + | |
3185 | sizeof(struct scsi_dif_tuple)); | |
3186 | break; | |
3187 | } | |
e2a0a9d6 JS |
3188 | |
3189 | failing_sector = scsi_get_lba(cmd); | |
3190 | failing_sector += bghm; | |
3191 | ||
7c56b9fd JS |
3192 | /* Descriptor Information */ |
3193 | put_unaligned_be64(failing_sector, &cmd->sense_buffer[12]); | |
e2a0a9d6 JS |
3194 | } |
3195 | ||
3196 | if (!ret) { | |
3197 | /* No error was reported - problem in FW? */ | |
737d4248 | 3198 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
68a6a66c JS |
3199 | "9057 BLKGRD: Unknown error in cmd " |
3200 | "0x%x reftag 0x%x blk cnt 0x%x " | |
737d4248 | 3201 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], |
125c12f7 MP |
3202 | scsi_prot_ref_tag(cmd), |
3203 | scsi_logical_block_count(cmd), bgstat, bghm); | |
737d4248 | 3204 | |
125c12f7 | 3205 | /* Calculate what type of error it was */ |
737d4248 | 3206 | lpfc_calc_bg_err(phba, lpfc_cmd); |
e2a0a9d6 | 3207 | } |
e2a0a9d6 JS |
3208 | out: |
3209 | return ret; | |
dea3101e JB |
3210 | } |
3211 | ||
da0436e9 JS |
3212 | /** |
3213 | * lpfc_scsi_prep_dma_buf_s4 - DMA mapping for scsi buffer to SLI4 IF spec | |
3214 | * @phba: The Hba for which this call is being executed. | |
3215 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
3216 | * | |
3217 | * This routine does the pci dma mapping for scatter-gather list of scsi cmnd | |
3218 | * field of @lpfc_cmd for device with SLI-4 interface spec. | |
3219 | * | |
3220 | * Return codes: | |
5e0e2318 JS |
3221 | * 2 - Error - Do not retry |
3222 | * 1 - Error - Retry | |
6c8eea54 | 3223 | * 0 - Success |
da0436e9 JS |
3224 | **/ |
3225 | static int | |
c490850a | 3226 | lpfc_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd) |
da0436e9 JS |
3227 | { |
3228 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
3229 | struct scatterlist *sgel = NULL; | |
3230 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
0794d601 | 3231 | struct sli4_sge *sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl; |
fedd3b7b | 3232 | struct sli4_sge *first_data_sgl; |
da255e2e JS |
3233 | struct lpfc_iocbq *pwqeq = &lpfc_cmd->cur_iocbq; |
3234 | struct lpfc_vport *vport = phba->pport; | |
3235 | union lpfc_wqe128 *wqe = &pwqeq->wqe; | |
da0436e9 | 3236 | dma_addr_t physaddr; |
da0436e9 JS |
3237 | uint32_t dma_len; |
3238 | uint32_t dma_offset = 0; | |
d79c9e9d | 3239 | int nseg, i, j; |
fedd3b7b | 3240 | struct ulp_bde64 *bde; |
d79c9e9d JS |
3241 | bool lsp_just_set = false; |
3242 | struct sli4_hybrid_sgl *sgl_xtra = NULL; | |
da0436e9 JS |
3243 | |
3244 | /* | |
3245 | * There are three possibilities here - use scatter-gather segment, use | |
3246 | * the single mapping, or neither. Start the lpfc command prep by | |
3247 | * bumping the bpl beyond the fcp_cmnd and fcp_rsp regions to the first | |
3248 | * data bde entry. | |
3249 | */ | |
3250 | if (scsi_sg_count(scsi_cmnd)) { | |
3251 | /* | |
3252 | * The driver stores the segment count returned from pci_map_sg | |
3253 | * because this a count of dma-mappings used to map the use_sg | |
3254 | * pages. They are not guaranteed to be the same for those | |
3255 | * architectures that implement an IOMMU. | |
3256 | */ | |
3257 | ||
3258 | nseg = scsi_dma_map(scsi_cmnd); | |
5116fbf1 | 3259 | if (unlikely(nseg <= 0)) |
da0436e9 JS |
3260 | return 1; |
3261 | sgl += 1; | |
3262 | /* clear the last flag in the fcp_rsp map entry */ | |
3263 | sgl->word2 = le32_to_cpu(sgl->word2); | |
3264 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
3265 | sgl->word2 = cpu_to_le32(sgl->word2); | |
3266 | sgl += 1; | |
fedd3b7b | 3267 | first_data_sgl = sgl; |
da0436e9 | 3268 | lpfc_cmd->seg_cnt = nseg; |
d79c9e9d JS |
3269 | if (!phba->cfg_xpsgl && |
3270 | lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) { | |
372c187b DK |
3271 | lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
3272 | "9074 BLKGRD:" | |
3273 | " %s: Too many sg segments from " | |
3274 | "dma_map_sg. Config %d, seg_cnt %d\n", | |
3275 | __func__, phba->cfg_sg_seg_cnt, | |
3276 | lpfc_cmd->seg_cnt); | |
5e0e2318 | 3277 | WARN_ON_ONCE(lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt); |
96f7077f | 3278 | lpfc_cmd->seg_cnt = 0; |
da0436e9 | 3279 | scsi_dma_unmap(scsi_cmnd); |
5e0e2318 | 3280 | return 2; |
da0436e9 JS |
3281 | } |
3282 | ||
3283 | /* | |
3284 | * The driver established a maximum scatter-gather segment count | |
3285 | * during probe that limits the number of sg elements in any | |
3286 | * single scsi command. Just run through the seg_cnt and format | |
3287 | * the sge's. | |
3288 | * When using SLI-3 the driver will try to fit all the BDEs into | |
3289 | * the IOCB. If it can't then the BDEs get added to a BPL as it | |
3290 | * does for SLI-2 mode. | |
3291 | */ | |
d79c9e9d JS |
3292 | |
3293 | /* for tracking segment boundaries */ | |
3294 | sgel = scsi_sglist(scsi_cmnd); | |
3295 | j = 2; | |
3296 | for (i = 0; i < nseg; i++) { | |
3297 | sgl->word2 = 0; | |
838220fb | 3298 | if (nseg == 1) { |
da0436e9 | 3299 | bf_set(lpfc_sli4_sge_last, sgl, 1); |
d79c9e9d JS |
3300 | bf_set(lpfc_sli4_sge_type, sgl, |
3301 | LPFC_SGE_TYPE_DATA); | |
3302 | } else { | |
da0436e9 | 3303 | bf_set(lpfc_sli4_sge_last, sgl, 0); |
d79c9e9d JS |
3304 | |
3305 | /* do we need to expand the segment */ | |
3306 | if (!lsp_just_set && | |
3307 | !((j + 1) % phba->border_sge_num) && | |
3308 | ((nseg - 1) != i)) { | |
3309 | /* set LSP type */ | |
3310 | bf_set(lpfc_sli4_sge_type, sgl, | |
3311 | LPFC_SGE_TYPE_LSP); | |
3312 | ||
3313 | sgl_xtra = lpfc_get_sgl_per_hdwq( | |
3314 | phba, lpfc_cmd); | |
3315 | ||
3316 | if (unlikely(!sgl_xtra)) { | |
3317 | lpfc_cmd->seg_cnt = 0; | |
3318 | scsi_dma_unmap(scsi_cmnd); | |
3319 | return 1; | |
3320 | } | |
3321 | sgl->addr_lo = cpu_to_le32(putPaddrLow( | |
3322 | sgl_xtra->dma_phys_sgl)); | |
3323 | sgl->addr_hi = cpu_to_le32(putPaddrHigh( | |
3324 | sgl_xtra->dma_phys_sgl)); | |
3325 | ||
3326 | } else { | |
3327 | bf_set(lpfc_sli4_sge_type, sgl, | |
3328 | LPFC_SGE_TYPE_DATA); | |
3329 | } | |
3330 | } | |
3331 | ||
3332 | if (!(bf_get(lpfc_sli4_sge_type, sgl) & | |
3333 | LPFC_SGE_TYPE_LSP)) { | |
3334 | if ((nseg - 1) == i) | |
3335 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
3336 | ||
3337 | physaddr = sg_dma_address(sgel); | |
3338 | dma_len = sg_dma_len(sgel); | |
3339 | sgl->addr_lo = cpu_to_le32(putPaddrLow( | |
3340 | physaddr)); | |
3341 | sgl->addr_hi = cpu_to_le32(putPaddrHigh( | |
3342 | physaddr)); | |
3343 | ||
3344 | bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); | |
3345 | sgl->word2 = cpu_to_le32(sgl->word2); | |
3346 | sgl->sge_len = cpu_to_le32(dma_len); | |
3347 | ||
3348 | dma_offset += dma_len; | |
3349 | sgel = sg_next(sgel); | |
3350 | ||
3351 | sgl++; | |
3352 | lsp_just_set = false; | |
3353 | ||
3354 | } else { | |
3355 | sgl->word2 = cpu_to_le32(sgl->word2); | |
3356 | sgl->sge_len = cpu_to_le32( | |
3357 | phba->cfg_sg_dma_buf_size); | |
3358 | ||
3359 | sgl = (struct sli4_sge *)sgl_xtra->dma_sgl; | |
3360 | i = i - 1; | |
3361 | ||
3362 | lsp_just_set = true; | |
3363 | } | |
3364 | ||
3365 | j++; | |
da0436e9 | 3366 | } |
838220fb JS |
3367 | |
3368 | /* PBDE support for first data SGE only. | |
3369 | * For FCoE, we key off Performance Hints. | |
3370 | * For FC, we key off lpfc_enable_pbde. | |
0bc2b7c5 | 3371 | */ |
838220fb JS |
3372 | if (nseg == 1 && |
3373 | ((phba->sli3_options & LPFC_SLI4_PERFH_ENABLED) || | |
3374 | phba->cfg_enable_pbde)) { | |
3375 | /* Words 13-15 */ | |
fedd3b7b | 3376 | bde = (struct ulp_bde64 *) |
da255e2e | 3377 | &wqe->words[13]; |
fedd3b7b JS |
3378 | bde->addrLow = first_data_sgl->addr_lo; |
3379 | bde->addrHigh = first_data_sgl->addr_hi; | |
3380 | bde->tus.f.bdeSize = | |
3381 | le32_to_cpu(first_data_sgl->sge_len); | |
3382 | bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
3383 | bde->tus.w = cpu_to_le32(bde->tus.w); | |
da255e2e | 3384 | |
838220fb JS |
3385 | /* Word 11 - set PBDE bit */ |
3386 | bf_set(wqe_pbde, &wqe->generic.wqe_com, 1); | |
da255e2e JS |
3387 | } else { |
3388 | memset(&wqe->words[13], 0, (sizeof(uint32_t) * 3)); | |
838220fb | 3389 | /* Word 11 - PBDE bit disabled by default template */ |
fedd3b7b | 3390 | } |
da0436e9 JS |
3391 | } else { |
3392 | sgl += 1; | |
838220fb | 3393 | /* set the last flag in the fcp_rsp map entry */ |
da0436e9 JS |
3394 | sgl->word2 = le32_to_cpu(sgl->word2); |
3395 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
3396 | sgl->word2 = cpu_to_le32(sgl->word2); | |
414abe0a JS |
3397 | |
3398 | if ((phba->sli3_options & LPFC_SLI4_PERFH_ENABLED) || | |
3399 | phba->cfg_enable_pbde) { | |
3400 | bde = (struct ulp_bde64 *) | |
da255e2e | 3401 | &wqe->words[13]; |
414abe0a JS |
3402 | memset(bde, 0, (sizeof(uint32_t) * 3)); |
3403 | } | |
da0436e9 | 3404 | } |
da255e2e | 3405 | |
da0436e9 JS |
3406 | /* |
3407 | * Finish initializing those IOCB fields that are dependent on the | |
3408 | * scsi_cmnd request_buffer. Note that for SLI-2 the bdeSize is | |
3409 | * explicitly reinitialized. | |
3410 | * all iocb memory resources are reused. | |
3411 | */ | |
3412 | fcp_cmnd->fcpDl = cpu_to_be32(scsi_bufflen(scsi_cmnd)); | |
da255e2e JS |
3413 | /* Set first-burst provided it was successfully negotiated */ |
3414 | if (!(phba->hba_flag & HBA_FCOE_MODE) && | |
3415 | vport->cfg_first_burst_size && | |
3416 | scsi_cmnd->sc_data_direction == DMA_TO_DEVICE) { | |
3417 | u32 init_len, total_len; | |
3418 | ||
3419 | total_len = be32_to_cpu(fcp_cmnd->fcpDl); | |
3420 | init_len = min(total_len, vport->cfg_first_burst_size); | |
3421 | ||
3422 | /* Word 4 & 5 */ | |
3423 | wqe->fcp_iwrite.initial_xfer_len = init_len; | |
3424 | wqe->fcp_iwrite.total_xfer_len = total_len; | |
3425 | } else { | |
3426 | /* Word 4 */ | |
3427 | wqe->fcp_iwrite.total_xfer_len = | |
3428 | be32_to_cpu(fcp_cmnd->fcpDl); | |
3429 | } | |
1ba981fd JS |
3430 | |
3431 | /* | |
3432 | * If the OAS driver feature is enabled and the lun is enabled for | |
3433 | * OAS, set the oas iocb related flags. | |
3434 | */ | |
f38fa0bb | 3435 | if ((phba->cfg_fof) && ((struct lpfc_device_data *) |
c92c841c | 3436 | scsi_cmnd->device->hostdata)->oas_enabled) { |
9bd2bff5 | 3437 | lpfc_cmd->cur_iocbq.iocb_flag |= (LPFC_IO_OAS | LPFC_IO_FOF); |
c92c841c JS |
3438 | lpfc_cmd->cur_iocbq.priority = ((struct lpfc_device_data *) |
3439 | scsi_cmnd->device->hostdata)->priority; | |
da255e2e JS |
3440 | |
3441 | /* Word 10 */ | |
3442 | bf_set(wqe_oas, &wqe->generic.wqe_com, 1); | |
3443 | bf_set(wqe_ccpe, &wqe->generic.wqe_com, 1); | |
3444 | ||
3445 | if (lpfc_cmd->cur_iocbq.priority) | |
3446 | bf_set(wqe_ccp, &wqe->generic.wqe_com, | |
3447 | (lpfc_cmd->cur_iocbq.priority << 1)); | |
3448 | else | |
3449 | bf_set(wqe_ccp, &wqe->generic.wqe_com, | |
3450 | (phba->cfg_XLanePriority << 1)); | |
c92c841c | 3451 | } |
c490850a | 3452 | |
da0436e9 JS |
3453 | return 0; |
3454 | } | |
3455 | ||
acd6859b JS |
3456 | /** |
3457 | * lpfc_bg_scsi_prep_dma_buf_s4 - DMA mapping for scsi buffer to SLI4 IF spec | |
3458 | * @phba: The Hba for which this call is being executed. | |
3459 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
3460 | * | |
3461 | * This is the protection/DIF aware version of | |
3462 | * lpfc_scsi_prep_dma_buf(). It may be a good idea to combine the | |
3463 | * two functions eventually, but for now, it's here | |
5e0e2318 JS |
3464 | * Return codes: |
3465 | * 2 - Error - Do not retry | |
3466 | * 1 - Error - Retry | |
3467 | * 0 - Success | |
acd6859b JS |
3468 | **/ |
3469 | static int | |
3470 | lpfc_bg_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, | |
c490850a | 3471 | struct lpfc_io_buf *lpfc_cmd) |
acd6859b JS |
3472 | { |
3473 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
3474 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
0794d601 | 3475 | struct sli4_sge *sgl = (struct sli4_sge *)(lpfc_cmd->dma_sgl); |
da255e2e JS |
3476 | struct lpfc_iocbq *pwqeq = &lpfc_cmd->cur_iocbq; |
3477 | union lpfc_wqe128 *wqe = &pwqeq->wqe; | |
96f7077f | 3478 | uint32_t num_sge = 0; |
acd6859b JS |
3479 | int datasegcnt, protsegcnt, datadir = scsi_cmnd->sc_data_direction; |
3480 | int prot_group_type = 0; | |
3481 | int fcpdl; | |
5e0e2318 | 3482 | int ret = 1; |
7c4042a4 | 3483 | struct lpfc_vport *vport = phba->pport; |
acd6859b JS |
3484 | |
3485 | /* | |
3486 | * Start the lpfc command prep by bumping the sgl beyond fcp_cmnd | |
96f7077f | 3487 | * fcp_rsp regions to the first data sge entry |
acd6859b JS |
3488 | */ |
3489 | if (scsi_sg_count(scsi_cmnd)) { | |
3490 | /* | |
3491 | * The driver stores the segment count returned from pci_map_sg | |
3492 | * because this a count of dma-mappings used to map the use_sg | |
3493 | * pages. They are not guaranteed to be the same for those | |
3494 | * architectures that implement an IOMMU. | |
3495 | */ | |
3496 | datasegcnt = dma_map_sg(&phba->pcidev->dev, | |
3497 | scsi_sglist(scsi_cmnd), | |
3498 | scsi_sg_count(scsi_cmnd), datadir); | |
3499 | if (unlikely(!datasegcnt)) | |
3500 | return 1; | |
3501 | ||
3502 | sgl += 1; | |
3503 | /* clear the last flag in the fcp_rsp map entry */ | |
3504 | sgl->word2 = le32_to_cpu(sgl->word2); | |
3505 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
3506 | sgl->word2 = cpu_to_le32(sgl->word2); | |
3507 | ||
3508 | sgl += 1; | |
3509 | lpfc_cmd->seg_cnt = datasegcnt; | |
96f7077f JS |
3510 | |
3511 | /* First check if data segment count from SCSI Layer is good */ | |
d79c9e9d JS |
3512 | if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt && |
3513 | !phba->cfg_xpsgl) { | |
5e0e2318 JS |
3514 | WARN_ON_ONCE(lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt); |
3515 | ret = 2; | |
96f7077f | 3516 | goto err; |
5e0e2318 | 3517 | } |
acd6859b JS |
3518 | |
3519 | prot_group_type = lpfc_prot_group_type(phba, scsi_cmnd); | |
3520 | ||
3521 | switch (prot_group_type) { | |
3522 | case LPFC_PG_TYPE_NO_DIF: | |
96f7077f | 3523 | /* Here we need to add a DISEED to the count */ |
d79c9e9d JS |
3524 | if (((lpfc_cmd->seg_cnt + 1) > |
3525 | phba->cfg_total_seg_cnt) && | |
3526 | !phba->cfg_xpsgl) { | |
5e0e2318 | 3527 | ret = 2; |
96f7077f | 3528 | goto err; |
5e0e2318 | 3529 | } |
96f7077f JS |
3530 | |
3531 | num_sge = lpfc_bg_setup_sgl(phba, scsi_cmnd, sgl, | |
d79c9e9d | 3532 | datasegcnt, lpfc_cmd); |
96f7077f | 3533 | |
acd6859b | 3534 | /* we should have 2 or more entries in buffer list */ |
5e0e2318 JS |
3535 | if (num_sge < 2) { |
3536 | ret = 2; | |
acd6859b | 3537 | goto err; |
5e0e2318 | 3538 | } |
acd6859b | 3539 | break; |
96f7077f JS |
3540 | |
3541 | case LPFC_PG_TYPE_DIF_BUF: | |
acd6859b JS |
3542 | /* |
3543 | * This type indicates that protection buffers are | |
3544 | * passed to the driver, so that needs to be prepared | |
3545 | * for DMA | |
3546 | */ | |
3547 | protsegcnt = dma_map_sg(&phba->pcidev->dev, | |
3548 | scsi_prot_sglist(scsi_cmnd), | |
3549 | scsi_prot_sg_count(scsi_cmnd), datadir); | |
3550 | if (unlikely(!protsegcnt)) { | |
3551 | scsi_dma_unmap(scsi_cmnd); | |
3552 | return 1; | |
3553 | } | |
3554 | ||
3555 | lpfc_cmd->prot_seg_cnt = protsegcnt; | |
96f7077f JS |
3556 | /* |
3557 | * There is a minimun of 3 SGEs used for every | |
3558 | * protection data segment. | |
3559 | */ | |
d79c9e9d JS |
3560 | if (((lpfc_cmd->prot_seg_cnt * 3) > |
3561 | (phba->cfg_total_seg_cnt - 2)) && | |
3562 | !phba->cfg_xpsgl) { | |
5e0e2318 | 3563 | ret = 2; |
96f7077f | 3564 | goto err; |
5e0e2318 | 3565 | } |
acd6859b | 3566 | |
96f7077f | 3567 | num_sge = lpfc_bg_setup_sgl_prot(phba, scsi_cmnd, sgl, |
d79c9e9d | 3568 | datasegcnt, protsegcnt, lpfc_cmd); |
96f7077f | 3569 | |
acd6859b | 3570 | /* we should have 3 or more entries in buffer list */ |
d79c9e9d JS |
3571 | if (num_sge < 3 || |
3572 | (num_sge > phba->cfg_total_seg_cnt && | |
3573 | !phba->cfg_xpsgl)) { | |
5e0e2318 | 3574 | ret = 2; |
acd6859b | 3575 | goto err; |
5e0e2318 | 3576 | } |
acd6859b | 3577 | break; |
96f7077f | 3578 | |
acd6859b JS |
3579 | case LPFC_PG_TYPE_INVALID: |
3580 | default: | |
96f7077f JS |
3581 | scsi_dma_unmap(scsi_cmnd); |
3582 | lpfc_cmd->seg_cnt = 0; | |
3583 | ||
372c187b | 3584 | lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
acd6859b JS |
3585 | "9083 Unexpected protection group %i\n", |
3586 | prot_group_type); | |
5e0e2318 | 3587 | return 2; |
acd6859b JS |
3588 | } |
3589 | } | |
3590 | ||
8012cc38 JS |
3591 | switch (scsi_get_prot_op(scsi_cmnd)) { |
3592 | case SCSI_PROT_WRITE_STRIP: | |
3593 | case SCSI_PROT_READ_STRIP: | |
3594 | lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_IO_DIF_STRIP; | |
3595 | break; | |
3596 | case SCSI_PROT_WRITE_INSERT: | |
3597 | case SCSI_PROT_READ_INSERT: | |
3598 | lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_IO_DIF_INSERT; | |
3599 | break; | |
3600 | case SCSI_PROT_WRITE_PASS: | |
3601 | case SCSI_PROT_READ_PASS: | |
3602 | lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_IO_DIF_PASS; | |
3603 | break; | |
3604 | } | |
3605 | ||
acd6859b | 3606 | fcpdl = lpfc_bg_scsi_adjust_dl(phba, lpfc_cmd); |
acd6859b JS |
3607 | fcp_cmnd->fcpDl = be32_to_cpu(fcpdl); |
3608 | ||
da255e2e JS |
3609 | /* Set first-burst provided it was successfully negotiated */ |
3610 | if (!(phba->hba_flag & HBA_FCOE_MODE) && | |
3611 | vport->cfg_first_burst_size && | |
3612 | scsi_cmnd->sc_data_direction == DMA_TO_DEVICE) { | |
3613 | u32 init_len, total_len; | |
acd6859b | 3614 | |
da255e2e JS |
3615 | total_len = be32_to_cpu(fcp_cmnd->fcpDl); |
3616 | init_len = min(total_len, vport->cfg_first_burst_size); | |
3617 | ||
3618 | /* Word 4 & 5 */ | |
3619 | wqe->fcp_iwrite.initial_xfer_len = init_len; | |
3620 | wqe->fcp_iwrite.total_xfer_len = total_len; | |
3621 | } else { | |
3622 | /* Word 4 */ | |
3623 | wqe->fcp_iwrite.total_xfer_len = | |
3624 | be32_to_cpu(fcp_cmnd->fcpDl); | |
3625 | } | |
7c4042a4 | 3626 | |
9bd2bff5 JS |
3627 | /* |
3628 | * If the OAS driver feature is enabled and the lun is enabled for | |
3629 | * OAS, set the oas iocb related flags. | |
3630 | */ | |
3631 | if ((phba->cfg_fof) && ((struct lpfc_device_data *) | |
da255e2e | 3632 | scsi_cmnd->device->hostdata)->oas_enabled) { |
9bd2bff5 JS |
3633 | lpfc_cmd->cur_iocbq.iocb_flag |= (LPFC_IO_OAS | LPFC_IO_FOF); |
3634 | ||
da255e2e JS |
3635 | /* Word 10 */ |
3636 | bf_set(wqe_oas, &wqe->generic.wqe_com, 1); | |
3637 | bf_set(wqe_ccpe, &wqe->generic.wqe_com, 1); | |
3638 | bf_set(wqe_ccp, &wqe->generic.wqe_com, | |
3639 | (phba->cfg_XLanePriority << 1)); | |
3640 | } | |
3641 | ||
3642 | /* Word 7. DIF Flags */ | |
3643 | if (lpfc_cmd->cur_iocbq.iocb_flag & LPFC_IO_DIF_PASS) | |
3644 | bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU); | |
3645 | else if (lpfc_cmd->cur_iocbq.iocb_flag & LPFC_IO_DIF_STRIP) | |
3646 | bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP); | |
3647 | else if (lpfc_cmd->cur_iocbq.iocb_flag & LPFC_IO_DIF_INSERT) | |
3648 | bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT); | |
3649 | ||
3650 | lpfc_cmd->cur_iocbq.iocb_flag &= ~(LPFC_IO_DIF_PASS | | |
3651 | LPFC_IO_DIF_STRIP | LPFC_IO_DIF_INSERT); | |
3652 | ||
acd6859b JS |
3653 | return 0; |
3654 | err: | |
96f7077f JS |
3655 | if (lpfc_cmd->seg_cnt) |
3656 | scsi_dma_unmap(scsi_cmnd); | |
3657 | if (lpfc_cmd->prot_seg_cnt) | |
3658 | dma_unmap_sg(&phba->pcidev->dev, scsi_prot_sglist(scsi_cmnd), | |
3659 | scsi_prot_sg_count(scsi_cmnd), | |
3660 | scsi_cmnd->sc_data_direction); | |
3661 | ||
372c187b | 3662 | lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
96f7077f JS |
3663 | "9084 Cannot setup S/G List for HBA" |
3664 | "IO segs %d/%d SGL %d SCSI %d: %d %d\n", | |
3665 | lpfc_cmd->seg_cnt, lpfc_cmd->prot_seg_cnt, | |
3666 | phba->cfg_total_seg_cnt, phba->cfg_sg_seg_cnt, | |
3667 | prot_group_type, num_sge); | |
3668 | ||
3669 | lpfc_cmd->seg_cnt = 0; | |
3670 | lpfc_cmd->prot_seg_cnt = 0; | |
5e0e2318 | 3671 | return ret; |
acd6859b JS |
3672 | } |
3673 | ||
3772a991 JS |
3674 | /** |
3675 | * lpfc_scsi_prep_dma_buf - Wrapper function for DMA mapping of scsi buffer | |
3676 | * @phba: The Hba for which this call is being executed. | |
3677 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
3678 | * | |
3679 | * This routine wraps the actual DMA mapping function pointer from the | |
3680 | * lpfc_hba struct. | |
3681 | * | |
3682 | * Return codes: | |
6c8eea54 JS |
3683 | * 1 - Error |
3684 | * 0 - Success | |
3772a991 JS |
3685 | **/ |
3686 | static inline int | |
c490850a | 3687 | lpfc_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd) |
3772a991 JS |
3688 | { |
3689 | return phba->lpfc_scsi_prep_dma_buf(phba, lpfc_cmd); | |
3690 | } | |
3691 | ||
acd6859b JS |
3692 | /** |
3693 | * lpfc_bg_scsi_prep_dma_buf - Wrapper function for DMA mapping of scsi buffer | |
3694 | * using BlockGuard. | |
3695 | * @phba: The Hba for which this call is being executed. | |
3696 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
3697 | * | |
3698 | * This routine wraps the actual DMA mapping function pointer from the | |
3699 | * lpfc_hba struct. | |
3700 | * | |
3701 | * Return codes: | |
3702 | * 1 - Error | |
3703 | * 0 - Success | |
3704 | **/ | |
3705 | static inline int | |
c490850a | 3706 | lpfc_bg_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd) |
acd6859b JS |
3707 | { |
3708 | return phba->lpfc_bg_scsi_prep_dma_buf(phba, lpfc_cmd); | |
3709 | } | |
3710 | ||
da255e2e JS |
3711 | /** |
3712 | * lpfc_scsi_prep_cmnd_buf - Wrapper function for IOCB/WQE mapping of scsi | |
3713 | * buffer | |
0bb87e01 | 3714 | * @vport: Pointer to vport object. |
da255e2e JS |
3715 | * @lpfc_cmd: The scsi buffer which is going to be mapped. |
3716 | * @tmo: Timeout value for IO | |
3717 | * | |
3718 | * This routine initializes IOCB/WQE data structure from scsi command | |
3719 | * | |
3720 | * Return codes: | |
3721 | * 1 - Error | |
3722 | * 0 - Success | |
3723 | **/ | |
3724 | static inline int | |
3725 | lpfc_scsi_prep_cmnd_buf(struct lpfc_vport *vport, struct lpfc_io_buf *lpfc_cmd, | |
3726 | uint8_t tmo) | |
3727 | { | |
3728 | return vport->phba->lpfc_scsi_prep_cmnd_buf(vport, lpfc_cmd, tmo); | |
3729 | } | |
3730 | ||
ea2151b4 | 3731 | /** |
3621a710 | 3732 | * lpfc_send_scsi_error_event - Posts an event when there is SCSI error |
ea2151b4 JS |
3733 | * @phba: Pointer to hba context object. |
3734 | * @vport: Pointer to vport object. | |
3735 | * @lpfc_cmd: Pointer to lpfc scsi command which reported the error. | |
0bb87e01 | 3736 | * @fcpi_parm: FCP Initiator parameter. |
ea2151b4 JS |
3737 | * |
3738 | * This function posts an event when there is a SCSI command reporting | |
3739 | * error from the scsi device. | |
3740 | **/ | |
3741 | static void | |
3742 | lpfc_send_scsi_error_event(struct lpfc_hba *phba, struct lpfc_vport *vport, | |
96e209be | 3743 | struct lpfc_io_buf *lpfc_cmd, uint32_t fcpi_parm) { |
ea2151b4 JS |
3744 | struct scsi_cmnd *cmnd = lpfc_cmd->pCmd; |
3745 | struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp; | |
3746 | uint32_t resp_info = fcprsp->rspStatus2; | |
3747 | uint32_t scsi_status = fcprsp->rspStatus3; | |
ea2151b4 JS |
3748 | struct lpfc_fast_path_event *fast_path_evt = NULL; |
3749 | struct lpfc_nodelist *pnode = lpfc_cmd->rdata->pnode; | |
3750 | unsigned long flags; | |
3751 | ||
307e3380 | 3752 | if (!pnode) |
5989b8d4 JS |
3753 | return; |
3754 | ||
ea2151b4 JS |
3755 | /* If there is queuefull or busy condition send a scsi event */ |
3756 | if ((cmnd->result == SAM_STAT_TASK_SET_FULL) || | |
3757 | (cmnd->result == SAM_STAT_BUSY)) { | |
3758 | fast_path_evt = lpfc_alloc_fast_evt(phba); | |
3759 | if (!fast_path_evt) | |
3760 | return; | |
3761 | fast_path_evt->un.scsi_evt.event_type = | |
3762 | FC_REG_SCSI_EVENT; | |
3763 | fast_path_evt->un.scsi_evt.subcategory = | |
3764 | (cmnd->result == SAM_STAT_TASK_SET_FULL) ? | |
3765 | LPFC_EVENT_QFULL : LPFC_EVENT_DEVBSY; | |
3766 | fast_path_evt->un.scsi_evt.lun = cmnd->device->lun; | |
3767 | memcpy(&fast_path_evt->un.scsi_evt.wwpn, | |
3768 | &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
3769 | memcpy(&fast_path_evt->un.scsi_evt.wwnn, | |
3770 | &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
3771 | } else if ((resp_info & SNS_LEN_VALID) && fcprsp->rspSnsLen && | |
3772 | ((cmnd->cmnd[0] == READ_10) || (cmnd->cmnd[0] == WRITE_10))) { | |
3773 | fast_path_evt = lpfc_alloc_fast_evt(phba); | |
3774 | if (!fast_path_evt) | |
3775 | return; | |
3776 | fast_path_evt->un.check_cond_evt.scsi_event.event_type = | |
3777 | FC_REG_SCSI_EVENT; | |
3778 | fast_path_evt->un.check_cond_evt.scsi_event.subcategory = | |
3779 | LPFC_EVENT_CHECK_COND; | |
3780 | fast_path_evt->un.check_cond_evt.scsi_event.lun = | |
3781 | cmnd->device->lun; | |
3782 | memcpy(&fast_path_evt->un.check_cond_evt.scsi_event.wwpn, | |
3783 | &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
3784 | memcpy(&fast_path_evt->un.check_cond_evt.scsi_event.wwnn, | |
3785 | &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
3786 | fast_path_evt->un.check_cond_evt.sense_key = | |
3787 | cmnd->sense_buffer[2] & 0xf; | |
3788 | fast_path_evt->un.check_cond_evt.asc = cmnd->sense_buffer[12]; | |
3789 | fast_path_evt->un.check_cond_evt.ascq = cmnd->sense_buffer[13]; | |
3790 | } else if ((cmnd->sc_data_direction == DMA_FROM_DEVICE) && | |
3791 | fcpi_parm && | |
3792 | ((be32_to_cpu(fcprsp->rspResId) != fcpi_parm) || | |
3793 | ((scsi_status == SAM_STAT_GOOD) && | |
3794 | !(resp_info & (RESID_UNDER | RESID_OVER))))) { | |
3795 | /* | |
3796 | * If status is good or resid does not match with fcp_param and | |
3797 | * there is valid fcpi_parm, then there is a read_check error | |
3798 | */ | |
3799 | fast_path_evt = lpfc_alloc_fast_evt(phba); | |
3800 | if (!fast_path_evt) | |
3801 | return; | |
3802 | fast_path_evt->un.read_check_error.header.event_type = | |
3803 | FC_REG_FABRIC_EVENT; | |
3804 | fast_path_evt->un.read_check_error.header.subcategory = | |
3805 | LPFC_EVENT_FCPRDCHKERR; | |
3806 | memcpy(&fast_path_evt->un.read_check_error.header.wwpn, | |
3807 | &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
3808 | memcpy(&fast_path_evt->un.read_check_error.header.wwnn, | |
3809 | &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
3810 | fast_path_evt->un.read_check_error.lun = cmnd->device->lun; | |
3811 | fast_path_evt->un.read_check_error.opcode = cmnd->cmnd[0]; | |
3812 | fast_path_evt->un.read_check_error.fcpiparam = | |
3813 | fcpi_parm; | |
3814 | } else | |
3815 | return; | |
3816 | ||
3817 | fast_path_evt->vport = vport; | |
3818 | spin_lock_irqsave(&phba->hbalock, flags); | |
3819 | list_add_tail(&fast_path_evt->work_evt.evt_listp, &phba->work_list); | |
3820 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
3821 | lpfc_worker_wake_up(phba); | |
3822 | return; | |
3823 | } | |
9bad7671 JS |
3824 | |
3825 | /** | |
f1126688 | 3826 | * lpfc_scsi_unprep_dma_buf - Un-map DMA mapping of SG-list for dev |
3772a991 | 3827 | * @phba: The HBA for which this call is being executed. |
9bad7671 JS |
3828 | * @psb: The scsi buffer which is going to be un-mapped. |
3829 | * | |
3830 | * This routine does DMA un-mapping of scatter gather list of scsi command | |
3772a991 | 3831 | * field of @lpfc_cmd for device with SLI-3 interface spec. |
9bad7671 | 3832 | **/ |
bcf4dbfa | 3833 | static void |
c490850a | 3834 | lpfc_scsi_unprep_dma_buf(struct lpfc_hba *phba, struct lpfc_io_buf *psb) |
bcf4dbfa JS |
3835 | { |
3836 | /* | |
3837 | * There are only two special cases to consider. (1) the scsi command | |
3838 | * requested scatter-gather usage or (2) the scsi command allocated | |
3839 | * a request buffer, but did not request use_sg. There is a third | |
3840 | * case, but it does not require resource deallocation. | |
3841 | */ | |
a0b4f78f FT |
3842 | if (psb->seg_cnt > 0) |
3843 | scsi_dma_unmap(psb->pCmd); | |
e2a0a9d6 JS |
3844 | if (psb->prot_seg_cnt > 0) |
3845 | dma_unmap_sg(&phba->pcidev->dev, scsi_prot_sglist(psb->pCmd), | |
3846 | scsi_prot_sg_count(psb->pCmd), | |
3847 | psb->pCmd->sc_data_direction); | |
bcf4dbfa JS |
3848 | } |
3849 | ||
02243836 JS |
3850 | /** |
3851 | * lpfc_unblock_requests - allow further commands to be queued. | |
3852 | * @phba: pointer to phba object | |
3853 | * | |
3854 | * For single vport, just call scsi_unblock_requests on physical port. | |
3855 | * For multiple vports, send scsi_unblock_requests for all the vports. | |
3856 | */ | |
3857 | void | |
3858 | lpfc_unblock_requests(struct lpfc_hba *phba) | |
3859 | { | |
3860 | struct lpfc_vport **vports; | |
3861 | struct Scsi_Host *shost; | |
3862 | int i; | |
3863 | ||
3864 | if (phba->sli_rev == LPFC_SLI_REV4 && | |
3865 | !phba->sli4_hba.max_cfg_param.vpi_used) { | |
3866 | shost = lpfc_shost_from_vport(phba->pport); | |
3867 | scsi_unblock_requests(shost); | |
3868 | return; | |
3869 | } | |
3870 | ||
3871 | vports = lpfc_create_vport_work_array(phba); | |
3872 | if (vports != NULL) | |
3873 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { | |
3874 | shost = lpfc_shost_from_vport(vports[i]); | |
3875 | scsi_unblock_requests(shost); | |
3876 | } | |
3877 | lpfc_destroy_vport_work_array(phba, vports); | |
3878 | } | |
3879 | ||
3880 | /** | |
3881 | * lpfc_block_requests - prevent further commands from being queued. | |
3882 | * @phba: pointer to phba object | |
3883 | * | |
3884 | * For single vport, just call scsi_block_requests on physical port. | |
3885 | * For multiple vports, send scsi_block_requests for all the vports. | |
3886 | */ | |
3887 | void | |
3888 | lpfc_block_requests(struct lpfc_hba *phba) | |
3889 | { | |
3890 | struct lpfc_vport **vports; | |
3891 | struct Scsi_Host *shost; | |
3892 | int i; | |
3893 | ||
3894 | if (atomic_read(&phba->cmf_stop_io)) | |
3895 | return; | |
3896 | ||
3897 | if (phba->sli_rev == LPFC_SLI_REV4 && | |
3898 | !phba->sli4_hba.max_cfg_param.vpi_used) { | |
3899 | shost = lpfc_shost_from_vport(phba->pport); | |
3900 | scsi_block_requests(shost); | |
3901 | return; | |
3902 | } | |
3903 | ||
3904 | vports = lpfc_create_vport_work_array(phba); | |
3905 | if (vports != NULL) | |
3906 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { | |
3907 | shost = lpfc_shost_from_vport(vports[i]); | |
3908 | scsi_block_requests(shost); | |
3909 | } | |
3910 | lpfc_destroy_vport_work_array(phba, vports); | |
3911 | } | |
3912 | ||
3913 | /** | |
3914 | * lpfc_update_cmf_cmpl - Adjust CMF counters for IO completion | |
3915 | * @phba: The HBA for which this call is being executed. | |
3916 | * @time: The latency of the IO that completed (in ns) | |
3917 | * @size: The size of the IO that completed | |
3918 | * @shost: SCSI host the IO completed on (NULL for a NVME IO) | |
3919 | * | |
3920 | * The routine adjusts the various Burst and Bandwidth counters used in | |
3921 | * Congestion management and E2E. If time is set to LPFC_CGN_NOT_SENT, | |
3922 | * that means the IO was never issued to the HBA, so this routine is | |
3923 | * just being called to cleanup the counter from a previous | |
3924 | * lpfc_update_cmf_cmd call. | |
3925 | */ | |
3926 | int | |
3927 | lpfc_update_cmf_cmpl(struct lpfc_hba *phba, | |
3928 | uint64_t time, uint32_t size, struct Scsi_Host *shost) | |
3929 | { | |
3930 | struct lpfc_cgn_stat *cgs; | |
3931 | ||
3932 | if (time != LPFC_CGN_NOT_SENT) { | |
3933 | /* lat is ns coming in, save latency in us */ | |
3934 | if (time < 1000) | |
3935 | time = 1; | |
3936 | else | |
3937 | time = div_u64(time + 500, 1000); /* round it */ | |
3938 | ||
3939 | cgs = this_cpu_ptr(phba->cmf_stat); | |
3940 | atomic64_add(size, &cgs->rcv_bytes); | |
3941 | atomic64_add(time, &cgs->rx_latency); | |
3942 | atomic_inc(&cgs->rx_io_cnt); | |
3943 | } | |
3944 | return 0; | |
3945 | } | |
3946 | ||
3947 | /** | |
3948 | * lpfc_update_cmf_cmd - Adjust CMF counters for IO submission | |
3949 | * @phba: The HBA for which this call is being executed. | |
3950 | * @size: The size of the IO that will be issued | |
3951 | * | |
3952 | * The routine adjusts the various Burst and Bandwidth counters used in | |
3953 | * Congestion management and E2E. | |
3954 | */ | |
3955 | int | |
3956 | lpfc_update_cmf_cmd(struct lpfc_hba *phba, uint32_t size) | |
3957 | { | |
3958 | uint64_t total; | |
3959 | struct lpfc_cgn_stat *cgs; | |
3960 | int cpu; | |
3961 | ||
3962 | /* At this point we are either LPFC_CFG_MANAGED or LPFC_CFG_MONITOR */ | |
8b0d2757 JS |
3963 | if (phba->cmf_active_mode == LPFC_CFG_MANAGED && |
3964 | phba->cmf_max_bytes_per_interval) { | |
02243836 JS |
3965 | total = 0; |
3966 | for_each_present_cpu(cpu) { | |
3967 | cgs = per_cpu_ptr(phba->cmf_stat, cpu); | |
3968 | total += atomic64_read(&cgs->total_bytes); | |
3969 | } | |
3970 | if (total >= phba->cmf_max_bytes_per_interval) { | |
3971 | if (!atomic_xchg(&phba->cmf_bw_wait, 1)) { | |
3972 | lpfc_block_requests(phba); | |
3973 | phba->cmf_last_ts = | |
3974 | lpfc_calc_cmf_latency(phba); | |
3975 | } | |
3976 | atomic_inc(&phba->cmf_busy); | |
3977 | return -EBUSY; | |
3978 | } | |
17b27ac5 JS |
3979 | if (size > atomic_read(&phba->rx_max_read_cnt)) |
3980 | atomic_set(&phba->rx_max_read_cnt, size); | |
02243836 JS |
3981 | } |
3982 | ||
3983 | cgs = this_cpu_ptr(phba->cmf_stat); | |
3984 | atomic64_add(size, &cgs->total_bytes); | |
3985 | return 0; | |
3986 | } | |
3987 | ||
9bad7671 | 3988 | /** |
0bb87e01 | 3989 | * lpfc_handle_fcp_err - FCP response handler |
9bad7671 | 3990 | * @vport: The virtual port for which this call is being executed. |
c490850a | 3991 | * @lpfc_cmd: Pointer to lpfc_io_buf data structure. |
0bb87e01 | 3992 | * @fcpi_parm: FCP Initiator parameter. |
9bad7671 JS |
3993 | * |
3994 | * This routine is called to process response IOCB with status field | |
3995 | * IOSTAT_FCP_RSP_ERROR. This routine sets result field of scsi command | |
3996 | * based upon SCSI and FCP error. | |
3997 | **/ | |
dea3101e | 3998 | static void |
c490850a | 3999 | lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_io_buf *lpfc_cmd, |
96e209be | 4000 | uint32_t fcpi_parm) |
dea3101e JB |
4001 | { |
4002 | struct scsi_cmnd *cmnd = lpfc_cmd->pCmd; | |
4003 | struct fcp_cmnd *fcpcmd = lpfc_cmd->fcp_cmnd; | |
4004 | struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp; | |
dea3101e JB |
4005 | uint32_t resp_info = fcprsp->rspStatus2; |
4006 | uint32_t scsi_status = fcprsp->rspStatus3; | |
c7743956 | 4007 | uint32_t *lp; |
dea3101e JB |
4008 | uint32_t host_status = DID_OK; |
4009 | uint32_t rsplen = 0; | |
5afab6bb | 4010 | uint32_t fcpDl; |
c7743956 | 4011 | uint32_t logit = LOG_FCP | LOG_FCP_ERROR; |
dea3101e | 4012 | |
ea2151b4 | 4013 | |
dea3101e JB |
4014 | /* |
4015 | * If this is a task management command, there is no | |
4016 | * scsi packet associated with this lpfc_cmd. The driver | |
4017 | * consumes it. | |
4018 | */ | |
4019 | if (fcpcmd->fcpCntl2) { | |
4020 | scsi_status = 0; | |
4021 | goto out; | |
4022 | } | |
4023 | ||
6a9c52cf JS |
4024 | if (resp_info & RSP_LEN_VALID) { |
4025 | rsplen = be32_to_cpu(fcprsp->rspRspLen); | |
e40a02c1 | 4026 | if (rsplen != 0 && rsplen != 4 && rsplen != 8) { |
372c187b DK |
4027 | lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
4028 | "2719 Invalid response length: " | |
4029 | "tgt x%x lun x%llx cmnd x%x rsplen " | |
4030 | "x%x\n", cmnd->device->id, | |
4031 | cmnd->device->lun, cmnd->cmnd[0], | |
4032 | rsplen); | |
6a9c52cf JS |
4033 | host_status = DID_ERROR; |
4034 | goto out; | |
4035 | } | |
e40a02c1 | 4036 | if (fcprsp->rspInfo3 != RSP_NO_FAILURE) { |
372c187b | 4037 | lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
e40a02c1 JS |
4038 | "2757 Protocol failure detected during " |
4039 | "processing of FCP I/O op: " | |
9cb78c16 | 4040 | "tgt x%x lun x%llx cmnd x%x rspInfo3 x%x\n", |
e40a02c1 JS |
4041 | cmnd->device->id, |
4042 | cmnd->device->lun, cmnd->cmnd[0], | |
4043 | fcprsp->rspInfo3); | |
4044 | host_status = DID_ERROR; | |
4045 | goto out; | |
4046 | } | |
6a9c52cf JS |
4047 | } |
4048 | ||
c7743956 JS |
4049 | if ((resp_info & SNS_LEN_VALID) && fcprsp->rspSnsLen) { |
4050 | uint32_t snslen = be32_to_cpu(fcprsp->rspSnsLen); | |
4051 | if (snslen > SCSI_SENSE_BUFFERSIZE) | |
4052 | snslen = SCSI_SENSE_BUFFERSIZE; | |
4053 | ||
4054 | if (resp_info & RSP_LEN_VALID) | |
4055 | rsplen = be32_to_cpu(fcprsp->rspRspLen); | |
4056 | memcpy(cmnd->sense_buffer, &fcprsp->rspInfo0 + rsplen, snslen); | |
4057 | } | |
4058 | lp = (uint32_t *)cmnd->sense_buffer; | |
4059 | ||
aa1c7ee7 JS |
4060 | /* special handling for under run conditions */ |
4061 | if (!scsi_status && (resp_info & RESID_UNDER)) { | |
4062 | /* don't log under runs if fcp set... */ | |
4063 | if (vport->cfg_log_verbose & LOG_FCP) | |
4064 | logit = LOG_FCP_ERROR; | |
4065 | /* unless operator says so */ | |
4066 | if (vport->cfg_log_verbose & LOG_FCP_UNDER) | |
4067 | logit = LOG_FCP_UNDER; | |
4068 | } | |
c7743956 | 4069 | |
e8b62011 | 4070 | lpfc_printf_vlog(vport, KERN_WARNING, logit, |
e2a0a9d6 | 4071 | "9024 FCP command x%x failed: x%x SNS x%x x%x " |
e8b62011 JS |
4072 | "Data: x%x x%x x%x x%x x%x\n", |
4073 | cmnd->cmnd[0], scsi_status, | |
4074 | be32_to_cpu(*lp), be32_to_cpu(*(lp + 3)), resp_info, | |
4075 | be32_to_cpu(fcprsp->rspResId), | |
4076 | be32_to_cpu(fcprsp->rspSnsLen), | |
4077 | be32_to_cpu(fcprsp->rspRspLen), | |
4078 | fcprsp->rspInfo3); | |
dea3101e | 4079 | |
a0b4f78f | 4080 | scsi_set_resid(cmnd, 0); |
5afab6bb | 4081 | fcpDl = be32_to_cpu(fcpcmd->fcpDl); |
dea3101e | 4082 | if (resp_info & RESID_UNDER) { |
a0b4f78f | 4083 | scsi_set_resid(cmnd, be32_to_cpu(fcprsp->rspResId)); |
dea3101e | 4084 | |
73d91e50 | 4085 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP_UNDER, |
45634a86 | 4086 | "9025 FCP Underrun, expected %d, " |
e8b62011 | 4087 | "residual %d Data: x%x x%x x%x\n", |
5afab6bb | 4088 | fcpDl, |
e8b62011 JS |
4089 | scsi_get_resid(cmnd), fcpi_parm, cmnd->cmnd[0], |
4090 | cmnd->underflow); | |
dea3101e | 4091 | |
7054a606 | 4092 | /* |
45634a86 | 4093 | * If there is an under run, check if under run reported by |
7054a606 JS |
4094 | * storage array is same as the under run reported by HBA. |
4095 | * If this is not same, there is a dropped frame. | |
4096 | */ | |
45634a86 | 4097 | if (fcpi_parm && (scsi_get_resid(cmnd) != fcpi_parm)) { |
e8b62011 JS |
4098 | lpfc_printf_vlog(vport, KERN_WARNING, |
4099 | LOG_FCP | LOG_FCP_ERROR, | |
e2a0a9d6 | 4100 | "9026 FCP Read Check Error " |
e8b62011 | 4101 | "and Underrun Data: x%x x%x x%x x%x\n", |
5afab6bb | 4102 | fcpDl, |
e8b62011 JS |
4103 | scsi_get_resid(cmnd), fcpi_parm, |
4104 | cmnd->cmnd[0]); | |
a0b4f78f | 4105 | scsi_set_resid(cmnd, scsi_bufflen(cmnd)); |
7054a606 JS |
4106 | host_status = DID_ERROR; |
4107 | } | |
dea3101e JB |
4108 | /* |
4109 | * The cmnd->underflow is the minimum number of bytes that must | |
25985edc | 4110 | * be transferred for this command. Provided a sense condition |
dea3101e JB |
4111 | * is not present, make sure the actual amount transferred is at |
4112 | * least the underflow value or fail. | |
4113 | */ | |
4114 | if (!(resp_info & SNS_LEN_VALID) && | |
4115 | (scsi_status == SAM_STAT_GOOD) && | |
a0b4f78f FT |
4116 | (scsi_bufflen(cmnd) - scsi_get_resid(cmnd) |
4117 | < cmnd->underflow)) { | |
e8b62011 | 4118 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, |
e2a0a9d6 | 4119 | "9027 FCP command x%x residual " |
e8b62011 JS |
4120 | "underrun converted to error " |
4121 | "Data: x%x x%x x%x\n", | |
66dbfbe6 | 4122 | cmnd->cmnd[0], scsi_bufflen(cmnd), |
e8b62011 | 4123 | scsi_get_resid(cmnd), cmnd->underflow); |
dea3101e JB |
4124 | host_status = DID_ERROR; |
4125 | } | |
4126 | } else if (resp_info & RESID_OVER) { | |
e8b62011 | 4127 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
e2a0a9d6 | 4128 | "9028 FCP command x%x residual overrun error. " |
e4e74273 | 4129 | "Data: x%x x%x\n", cmnd->cmnd[0], |
e8b62011 | 4130 | scsi_bufflen(cmnd), scsi_get_resid(cmnd)); |
dea3101e JB |
4131 | host_status = DID_ERROR; |
4132 | ||
4133 | /* | |
4134 | * Check SLI validation that all the transfer was actually done | |
26373d23 | 4135 | * (fcpi_parm should be zero). Apply check only to reads. |
dea3101e | 4136 | */ |
5afab6bb | 4137 | } else if (fcpi_parm) { |
e8b62011 | 4138 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP | LOG_FCP_ERROR, |
96e209be | 4139 | "9029 FCP %s Check Error Data: " |
eee8877e | 4140 | "x%x x%x x%x x%x x%x\n", |
5afab6bb JS |
4141 | ((cmnd->sc_data_direction == DMA_FROM_DEVICE) ? |
4142 | "Read" : "Write"), | |
5afab6bb | 4143 | fcpDl, be32_to_cpu(fcprsp->rspResId), |
eee8877e | 4144 | fcpi_parm, cmnd->cmnd[0], scsi_status); |
5afab6bb JS |
4145 | |
4146 | /* There is some issue with the LPe12000 that causes it | |
4147 | * to miscalculate the fcpi_parm and falsely trip this | |
4148 | * recovery logic. Detect this case and don't error when true. | |
4149 | */ | |
4150 | if (fcpi_parm > fcpDl) | |
4151 | goto out; | |
4152 | ||
eee8877e JS |
4153 | switch (scsi_status) { |
4154 | case SAM_STAT_GOOD: | |
4155 | case SAM_STAT_CHECK_CONDITION: | |
4156 | /* Fabric dropped a data frame. Fail any successful | |
4157 | * command in which we detected dropped frames. | |
4158 | * A status of good or some check conditions could | |
4159 | * be considered a successful command. | |
4160 | */ | |
4161 | host_status = DID_ERROR; | |
4162 | break; | |
4163 | } | |
a0b4f78f | 4164 | scsi_set_resid(cmnd, scsi_bufflen(cmnd)); |
dea3101e JB |
4165 | } |
4166 | ||
4167 | out: | |
c6668cae | 4168 | cmnd->result = host_status << 16 | scsi_status; |
96e209be JS |
4169 | lpfc_send_scsi_error_event(vport->phba, vport, lpfc_cmd, fcpi_parm); |
4170 | } | |
4171 | ||
4172 | /** | |
4173 | * lpfc_fcp_io_cmd_wqe_cmpl - Complete a FCP IO | |
4174 | * @phba: The hba for which this call is being executed. | |
4175 | * @pwqeIn: The command WQE for the scsi cmnd. | |
0bb87e01 | 4176 | * @wcqe: Pointer to driver response CQE object. |
96e209be JS |
4177 | * |
4178 | * This routine assigns scsi command result by looking into response WQE | |
4179 | * status field appropriately. This routine handles QUEUE FULL condition as | |
4180 | * well by ramping down device queue depth. | |
4181 | **/ | |
4182 | static void | |
4183 | lpfc_fcp_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn, | |
4184 | struct lpfc_wcqe_complete *wcqe) | |
4185 | { | |
4186 | struct lpfc_io_buf *lpfc_cmd = | |
4187 | (struct lpfc_io_buf *)pwqeIn->context1; | |
4188 | struct lpfc_vport *vport = pwqeIn->vport; | |
1e7dddb2 CIK |
4189 | struct lpfc_rport_data *rdata; |
4190 | struct lpfc_nodelist *ndlp; | |
96e209be JS |
4191 | struct scsi_cmnd *cmd; |
4192 | unsigned long flags; | |
4193 | struct lpfc_fast_path_event *fast_path_evt; | |
4194 | struct Scsi_Host *shost; | |
4195 | u32 logit = LOG_FCP; | |
4196 | u32 status, idx; | |
4197 | unsigned long iflags = 0; | |
02243836 | 4198 | u32 lat; |
3e49af93 | 4199 | u8 wait_xb_clr = 0; |
96e209be JS |
4200 | |
4201 | /* Sanity check on return of outstanding command */ | |
4202 | if (!lpfc_cmd) { | |
4203 | lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, | |
4204 | "9032 Null lpfc_cmd pointer. No " | |
4205 | "release, skip completion\n"); | |
4206 | return; | |
4207 | } | |
4208 | ||
1e7dddb2 CIK |
4209 | rdata = lpfc_cmd->rdata; |
4210 | ndlp = rdata->pnode; | |
4211 | ||
96e209be JS |
4212 | if (bf_get(lpfc_wcqe_c_xb, wcqe)) { |
4213 | /* TOREMOVE - currently this flag is checked during | |
4214 | * the release of lpfc_iocbq. Remove once we move | |
4215 | * to lpfc_wqe_job construct. | |
4216 | * | |
4217 | * This needs to be done outside buf_lock | |
4218 | */ | |
4219 | spin_lock_irqsave(&phba->hbalock, iflags); | |
4220 | lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_EXCHANGE_BUSY; | |
4221 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
4222 | } | |
4223 | ||
4224 | /* Guard against abort handler being called at same time */ | |
4225 | spin_lock(&lpfc_cmd->buf_lock); | |
4226 | ||
4227 | /* Sanity check on return of outstanding command */ | |
4228 | cmd = lpfc_cmd->pCmd; | |
ae960d78 | 4229 | if (!cmd) { |
96e209be JS |
4230 | lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
4231 | "9042 I/O completion: Not an active IO\n"); | |
4232 | spin_unlock(&lpfc_cmd->buf_lock); | |
4233 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
4234 | return; | |
4235 | } | |
4236 | idx = lpfc_cmd->cur_iocbq.hba_wqidx; | |
4237 | if (phba->sli4_hba.hdwq) | |
4238 | phba->sli4_hba.hdwq[idx].scsi_cstat.io_cmpls++; | |
4239 | ||
4240 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS | |
4241 | if (unlikely(phba->hdwqstat_on & LPFC_CHECK_SCSI_IO)) | |
4242 | this_cpu_inc(phba->sli4_hba.c_stat->cmpl_io); | |
4243 | #endif | |
4244 | shost = cmd->device->host; | |
4245 | ||
4246 | status = bf_get(lpfc_wcqe_c_status, wcqe); | |
4247 | lpfc_cmd->status = (status & LPFC_IOCB_STATUS_MASK); | |
4248 | lpfc_cmd->result = (wcqe->parameter & IOERR_PARAM_MASK); | |
4249 | ||
4250 | lpfc_cmd->flags &= ~LPFC_SBUF_XBUSY; | |
3e49af93 | 4251 | if (bf_get(lpfc_wcqe_c_xb, wcqe)) { |
96e209be | 4252 | lpfc_cmd->flags |= LPFC_SBUF_XBUSY; |
3e49af93 JS |
4253 | if (phba->cfg_fcp_wait_abts_rsp) |
4254 | wait_xb_clr = 1; | |
4255 | } | |
96e209be JS |
4256 | |
4257 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS | |
4258 | if (lpfc_cmd->prot_data_type) { | |
4259 | struct scsi_dif_tuple *src = NULL; | |
4260 | ||
4261 | src = (struct scsi_dif_tuple *)lpfc_cmd->prot_data_segment; | |
4262 | /* | |
4263 | * Used to restore any changes to protection | |
4264 | * data for error injection. | |
4265 | */ | |
4266 | switch (lpfc_cmd->prot_data_type) { | |
4267 | case LPFC_INJERR_REFTAG: | |
4268 | src->ref_tag = | |
4269 | lpfc_cmd->prot_data; | |
4270 | break; | |
4271 | case LPFC_INJERR_APPTAG: | |
4272 | src->app_tag = | |
4273 | (uint16_t)lpfc_cmd->prot_data; | |
4274 | break; | |
4275 | case LPFC_INJERR_GUARD: | |
4276 | src->guard_tag = | |
4277 | (uint16_t)lpfc_cmd->prot_data; | |
4278 | break; | |
4279 | default: | |
4280 | break; | |
4281 | } | |
4282 | ||
4283 | lpfc_cmd->prot_data = 0; | |
4284 | lpfc_cmd->prot_data_type = 0; | |
4285 | lpfc_cmd->prot_data_segment = NULL; | |
4286 | } | |
4287 | #endif | |
4288 | if (unlikely(lpfc_cmd->status)) { | |
4289 | if (lpfc_cmd->status == IOSTAT_LOCAL_REJECT && | |
4290 | (lpfc_cmd->result & IOERR_DRVR_MASK)) | |
4291 | lpfc_cmd->status = IOSTAT_DRIVER_REJECT; | |
4292 | else if (lpfc_cmd->status >= IOSTAT_CNT) | |
4293 | lpfc_cmd->status = IOSTAT_DEFAULT; | |
4294 | if (lpfc_cmd->status == IOSTAT_FCP_RSP_ERROR && | |
4295 | !lpfc_cmd->fcp_rsp->rspStatus3 && | |
4296 | (lpfc_cmd->fcp_rsp->rspStatus2 & RESID_UNDER) && | |
4297 | !(vport->cfg_log_verbose & LOG_FCP_UNDER)) | |
4298 | logit = 0; | |
4299 | else | |
4300 | logit = LOG_FCP | LOG_FCP_UNDER; | |
4301 | lpfc_printf_vlog(vport, KERN_WARNING, logit, | |
4302 | "9034 FCP cmd x%x failed <%d/%lld> " | |
4303 | "status: x%x result: x%x " | |
4304 | "sid: x%x did: x%x oxid: x%x " | |
4305 | "Data: x%x x%x x%x\n", | |
4306 | cmd->cmnd[0], | |
4307 | cmd->device ? cmd->device->id : 0xffff, | |
4308 | cmd->device ? cmd->device->lun : 0xffff, | |
4309 | lpfc_cmd->status, lpfc_cmd->result, | |
4310 | vport->fc_myDID, | |
4311 | (ndlp) ? ndlp->nlp_DID : 0, | |
4312 | lpfc_cmd->cur_iocbq.sli4_xritag, | |
4313 | wcqe->parameter, wcqe->total_data_placed, | |
4314 | lpfc_cmd->cur_iocbq.iotag); | |
4315 | } | |
4316 | ||
4317 | switch (lpfc_cmd->status) { | |
4318 | case IOSTAT_SUCCESS: | |
4319 | cmd->result = DID_OK << 16; | |
4320 | break; | |
4321 | case IOSTAT_FCP_RSP_ERROR: | |
4322 | lpfc_handle_fcp_err(vport, lpfc_cmd, | |
4323 | pwqeIn->wqe.fcp_iread.total_xfer_len - | |
4324 | wcqe->total_data_placed); | |
4325 | break; | |
4326 | case IOSTAT_NPORT_BSY: | |
4327 | case IOSTAT_FABRIC_BSY: | |
4328 | cmd->result = DID_TRANSPORT_DISRUPTED << 16; | |
4329 | fast_path_evt = lpfc_alloc_fast_evt(phba); | |
4330 | if (!fast_path_evt) | |
4331 | break; | |
4332 | fast_path_evt->un.fabric_evt.event_type = | |
4333 | FC_REG_FABRIC_EVENT; | |
4334 | fast_path_evt->un.fabric_evt.subcategory = | |
4335 | (lpfc_cmd->status == IOSTAT_NPORT_BSY) ? | |
4336 | LPFC_EVENT_PORT_BUSY : LPFC_EVENT_FABRIC_BUSY; | |
4337 | if (ndlp) { | |
4338 | memcpy(&fast_path_evt->un.fabric_evt.wwpn, | |
4339 | &ndlp->nlp_portname, | |
4340 | sizeof(struct lpfc_name)); | |
4341 | memcpy(&fast_path_evt->un.fabric_evt.wwnn, | |
4342 | &ndlp->nlp_nodename, | |
4343 | sizeof(struct lpfc_name)); | |
4344 | } | |
4345 | fast_path_evt->vport = vport; | |
4346 | fast_path_evt->work_evt.evt = | |
4347 | LPFC_EVT_FASTPATH_MGMT_EVT; | |
4348 | spin_lock_irqsave(&phba->hbalock, flags); | |
4349 | list_add_tail(&fast_path_evt->work_evt.evt_listp, | |
4350 | &phba->work_list); | |
4351 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
4352 | lpfc_worker_wake_up(phba); | |
4353 | lpfc_printf_vlog(vport, KERN_WARNING, logit, | |
4354 | "9035 Fabric/Node busy FCP cmd x%x failed" | |
4355 | " <%d/%lld> " | |
4356 | "status: x%x result: x%x " | |
4357 | "sid: x%x did: x%x oxid: x%x " | |
4358 | "Data: x%x x%x x%x\n", | |
4359 | cmd->cmnd[0], | |
4360 | cmd->device ? cmd->device->id : 0xffff, | |
4361 | cmd->device ? cmd->device->lun : 0xffff, | |
4362 | lpfc_cmd->status, lpfc_cmd->result, | |
4363 | vport->fc_myDID, | |
4364 | (ndlp) ? ndlp->nlp_DID : 0, | |
4365 | lpfc_cmd->cur_iocbq.sli4_xritag, | |
4366 | wcqe->parameter, | |
4367 | wcqe->total_data_placed, | |
4368 | lpfc_cmd->cur_iocbq.iocb.ulpIoTag); | |
4369 | break; | |
4370 | case IOSTAT_REMOTE_STOP: | |
4371 | if (ndlp) { | |
4372 | /* This I/O was aborted by the target, we don't | |
4373 | * know the rxid and because we did not send the | |
4374 | * ABTS we cannot generate and RRQ. | |
4375 | */ | |
4376 | lpfc_set_rrq_active(phba, ndlp, | |
4377 | lpfc_cmd->cur_iocbq.sli4_lxritag, | |
4378 | 0, 0); | |
4379 | } | |
4380 | fallthrough; | |
4381 | case IOSTAT_LOCAL_REJECT: | |
4382 | if (lpfc_cmd->result & IOERR_DRVR_MASK) | |
4383 | lpfc_cmd->status = IOSTAT_DRIVER_REJECT; | |
4384 | if (lpfc_cmd->result == IOERR_ELXSEC_KEY_UNWRAP_ERROR || | |
4385 | lpfc_cmd->result == | |
4386 | IOERR_ELXSEC_KEY_UNWRAP_COMPARE_ERROR || | |
4387 | lpfc_cmd->result == IOERR_ELXSEC_CRYPTO_ERROR || | |
4388 | lpfc_cmd->result == | |
4389 | IOERR_ELXSEC_CRYPTO_COMPARE_ERROR) { | |
4390 | cmd->result = DID_NO_CONNECT << 16; | |
4391 | break; | |
4392 | } | |
4393 | if (lpfc_cmd->result == IOERR_INVALID_RPI || | |
4394 | lpfc_cmd->result == IOERR_NO_RESOURCES || | |
4395 | lpfc_cmd->result == IOERR_ABORT_REQUESTED || | |
dc2dc273 | 4396 | lpfc_cmd->result == IOERR_RPI_SUSPENDED || |
96e209be JS |
4397 | lpfc_cmd->result == IOERR_SLER_CMD_RCV_FAILURE) { |
4398 | cmd->result = DID_REQUEUE << 16; | |
4399 | break; | |
4400 | } | |
4401 | if ((lpfc_cmd->result == IOERR_RX_DMA_FAILED || | |
4402 | lpfc_cmd->result == IOERR_TX_DMA_FAILED) && | |
4403 | status == CQE_STATUS_DI_ERROR) { | |
4404 | if (scsi_get_prot_op(cmd) != | |
4405 | SCSI_PROT_NORMAL) { | |
4406 | /* | |
4407 | * This is a response for a BG enabled | |
4408 | * cmd. Parse BG error | |
4409 | */ | |
4410 | lpfc_sli4_parse_bg_err(phba, lpfc_cmd, | |
4411 | wcqe); | |
4412 | break; | |
4413 | } | |
4414 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, | |
4415 | "9040 non-zero BGSTAT on unprotected cmd\n"); | |
4416 | } | |
4417 | lpfc_printf_vlog(vport, KERN_WARNING, logit, | |
4418 | "9036 Local Reject FCP cmd x%x failed" | |
4419 | " <%d/%lld> " | |
4420 | "status: x%x result: x%x " | |
4421 | "sid: x%x did: x%x oxid: x%x " | |
4422 | "Data: x%x x%x x%x\n", | |
4423 | cmd->cmnd[0], | |
4424 | cmd->device ? cmd->device->id : 0xffff, | |
4425 | cmd->device ? cmd->device->lun : 0xffff, | |
4426 | lpfc_cmd->status, lpfc_cmd->result, | |
4427 | vport->fc_myDID, | |
4428 | (ndlp) ? ndlp->nlp_DID : 0, | |
4429 | lpfc_cmd->cur_iocbq.sli4_xritag, | |
4430 | wcqe->parameter, | |
4431 | wcqe->total_data_placed, | |
4432 | lpfc_cmd->cur_iocbq.iocb.ulpIoTag); | |
4433 | fallthrough; | |
4434 | default: | |
4435 | if (lpfc_cmd->status >= IOSTAT_CNT) | |
4436 | lpfc_cmd->status = IOSTAT_DEFAULT; | |
4437 | cmd->result = DID_ERROR << 16; | |
4438 | lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR, | |
4439 | "9037 FCP Completion Error: xri %x " | |
4440 | "status x%x result x%x [x%x] " | |
4441 | "placed x%x\n", | |
4442 | lpfc_cmd->cur_iocbq.sli4_xritag, | |
4443 | lpfc_cmd->status, lpfc_cmd->result, | |
4444 | wcqe->parameter, | |
4445 | wcqe->total_data_placed); | |
4446 | } | |
4447 | if (cmd->result || lpfc_cmd->fcp_rsp->rspSnsLen) { | |
4448 | u32 *lp = (u32 *)cmd->sense_buffer; | |
4449 | ||
4450 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
f1156125 | 4451 | "9039 Iodone <%d/%llu> cmd x%px, error " |
dc2dc273 | 4452 | "x%x SNS x%x x%x LBA x%llx Data: x%x x%x\n", |
96e209be | 4453 | cmd->device->id, cmd->device->lun, cmd, |
dc2dc273 JS |
4454 | cmd->result, *lp, *(lp + 3), |
4455 | (u64)scsi_get_lba(cmd), | |
4456 | cmd->retries, scsi_get_resid(cmd)); | |
96e209be JS |
4457 | } |
4458 | ||
4459 | lpfc_update_stats(vport, lpfc_cmd); | |
4460 | ||
4461 | if (vport->cfg_max_scsicmpl_time && | |
4462 | time_after(jiffies, lpfc_cmd->start_time + | |
4463 | msecs_to_jiffies(vport->cfg_max_scsicmpl_time))) { | |
4464 | spin_lock_irqsave(shost->host_lock, flags); | |
4465 | if (ndlp) { | |
4466 | if (ndlp->cmd_qdepth > | |
4467 | atomic_read(&ndlp->cmd_pending) && | |
4468 | (atomic_read(&ndlp->cmd_pending) > | |
4469 | LPFC_MIN_TGT_QDEPTH) && | |
4470 | (cmd->cmnd[0] == READ_10 || | |
4471 | cmd->cmnd[0] == WRITE_10)) | |
4472 | ndlp->cmd_qdepth = | |
4473 | atomic_read(&ndlp->cmd_pending); | |
4474 | ||
4475 | ndlp->last_change_time = jiffies; | |
4476 | } | |
4477 | spin_unlock_irqrestore(shost->host_lock, flags); | |
4478 | } | |
4479 | lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd); | |
4480 | ||
4481 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS | |
4482 | if (lpfc_cmd->ts_cmd_start) { | |
4483 | lpfc_cmd->ts_isr_cmpl = lpfc_cmd->cur_iocbq.isr_timestamp; | |
4484 | lpfc_cmd->ts_data_io = ktime_get_ns(); | |
4485 | phba->ktime_last_cmd = lpfc_cmd->ts_data_io; | |
4486 | lpfc_io_ktime(phba, lpfc_cmd); | |
4487 | } | |
4488 | #endif | |
02243836 JS |
4489 | if (likely(!wait_xb_clr)) |
4490 | lpfc_cmd->pCmd = NULL; | |
4491 | spin_unlock(&lpfc_cmd->buf_lock); | |
4492 | ||
4493 | /* Check if IO qualified for CMF */ | |
4494 | if (phba->cmf_active_mode != LPFC_CFG_OFF && | |
4495 | cmd->sc_data_direction == DMA_FROM_DEVICE && | |
4496 | (scsi_sg_count(cmd))) { | |
4497 | /* Used when calculating average latency */ | |
4498 | lat = ktime_get_ns() - lpfc_cmd->rx_cmd_start; | |
4499 | lpfc_update_cmf_cmpl(phba, lat, scsi_bufflen(cmd), shost); | |
4500 | } | |
4501 | ||
3e49af93 JS |
4502 | if (wait_xb_clr) |
4503 | goto out; | |
96e209be JS |
4504 | |
4505 | /* The sdev is not guaranteed to be valid post scsi_done upcall. */ | |
4506 | cmd->scsi_done(cmd); | |
4507 | ||
4508 | /* | |
4509 | * If there is an abort thread waiting for command completion | |
4510 | * wake up the thread. | |
4511 | */ | |
4512 | spin_lock(&lpfc_cmd->buf_lock); | |
4513 | lpfc_cmd->cur_iocbq.iocb_flag &= ~LPFC_DRIVER_ABORTED; | |
4514 | if (lpfc_cmd->waitq) | |
4515 | wake_up(lpfc_cmd->waitq); | |
4516 | spin_unlock(&lpfc_cmd->buf_lock); | |
02243836 | 4517 | out: |
96e209be | 4518 | lpfc_release_scsi_buf(phba, lpfc_cmd); |
dea3101e JB |
4519 | } |
4520 | ||
9bad7671 | 4521 | /** |
3621a710 | 4522 | * lpfc_scsi_cmd_iocb_cmpl - Scsi cmnd IOCB completion routine |
9bad7671 JS |
4523 | * @phba: The Hba for which this call is being executed. |
4524 | * @pIocbIn: The command IOCBQ for the scsi cmnd. | |
3772a991 | 4525 | * @pIocbOut: The response IOCBQ for the scsi cmnd. |
9bad7671 JS |
4526 | * |
4527 | * This routine assigns scsi command result by looking into response IOCB | |
4528 | * status field appropriately. This routine handles QUEUE FULL condition as | |
4529 | * well by ramping down device queue depth. | |
4530 | **/ | |
dea3101e JB |
4531 | static void |
4532 | lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn, | |
4533 | struct lpfc_iocbq *pIocbOut) | |
4534 | { | |
c490850a JS |
4535 | struct lpfc_io_buf *lpfc_cmd = |
4536 | (struct lpfc_io_buf *) pIocbIn->context1; | |
2e0fef85 | 4537 | struct lpfc_vport *vport = pIocbIn->vport; |
dea3101e JB |
4538 | struct lpfc_rport_data *rdata = lpfc_cmd->rdata; |
4539 | struct lpfc_nodelist *pnode = rdata->pnode; | |
75baf696 | 4540 | struct scsi_cmnd *cmd; |
fa61a54e | 4541 | unsigned long flags; |
ea2151b4 | 4542 | struct lpfc_fast_path_event *fast_path_evt; |
75baf696 | 4543 | struct Scsi_Host *shost; |
4c47efc1 | 4544 | int idx; |
73d91e50 | 4545 | uint32_t logit = LOG_FCP; |
dea3101e | 4546 | |
c2017260 JS |
4547 | /* Guard against abort handler being called at same time */ |
4548 | spin_lock(&lpfc_cmd->buf_lock); | |
4549 | ||
75baf696 | 4550 | /* Sanity check on return of outstanding command */ |
75baf696 | 4551 | cmd = lpfc_cmd->pCmd; |
43bfea1b | 4552 | if (!cmd || !phba) { |
372c187b | 4553 | lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
c2017260 JS |
4554 | "2621 IO completion: Not an active IO\n"); |
4555 | spin_unlock(&lpfc_cmd->buf_lock); | |
c90261dc | 4556 | return; |
c2017260 | 4557 | } |
4c47efc1 JS |
4558 | |
4559 | idx = lpfc_cmd->cur_iocbq.hba_wqidx; | |
4560 | if (phba->sli4_hba.hdwq) | |
4561 | phba->sli4_hba.hdwq[idx].scsi_cstat.io_cmpls++; | |
4562 | ||
6a828b0f | 4563 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
840eda96 JS |
4564 | if (unlikely(phba->hdwqstat_on & LPFC_CHECK_SCSI_IO)) |
4565 | this_cpu_inc(phba->sli4_hba.c_stat->cmpl_io); | |
6a828b0f | 4566 | #endif |
75baf696 JS |
4567 | shost = cmd->device->host; |
4568 | ||
e3d2b802 | 4569 | lpfc_cmd->result = (pIocbOut->iocb.un.ulpWord[4] & IOERR_PARAM_MASK); |
dea3101e | 4570 | lpfc_cmd->status = pIocbOut->iocb.ulpStatus; |
3e49af93 JS |
4571 | /* pick up SLI4 exchange busy status from HBA */ |
4572 | lpfc_cmd->flags &= ~LPFC_SBUF_XBUSY; | |
324e1c40 JS |
4573 | if (pIocbOut->iocb_flag & LPFC_EXCHANGE_BUSY) |
4574 | lpfc_cmd->flags |= LPFC_SBUF_XBUSY; | |
341af102 | 4575 | |
9a6b09c0 JS |
4576 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
4577 | if (lpfc_cmd->prot_data_type) { | |
4578 | struct scsi_dif_tuple *src = NULL; | |
4579 | ||
4580 | src = (struct scsi_dif_tuple *)lpfc_cmd->prot_data_segment; | |
4581 | /* | |
4582 | * Used to restore any changes to protection | |
4583 | * data for error injection. | |
4584 | */ | |
4585 | switch (lpfc_cmd->prot_data_type) { | |
4586 | case LPFC_INJERR_REFTAG: | |
4587 | src->ref_tag = | |
4588 | lpfc_cmd->prot_data; | |
4589 | break; | |
4590 | case LPFC_INJERR_APPTAG: | |
4591 | src->app_tag = | |
4592 | (uint16_t)lpfc_cmd->prot_data; | |
4593 | break; | |
4594 | case LPFC_INJERR_GUARD: | |
4595 | src->guard_tag = | |
4596 | (uint16_t)lpfc_cmd->prot_data; | |
4597 | break; | |
4598 | default: | |
4599 | break; | |
4600 | } | |
4601 | ||
4602 | lpfc_cmd->prot_data = 0; | |
4603 | lpfc_cmd->prot_data_type = 0; | |
4604 | lpfc_cmd->prot_data_segment = NULL; | |
4605 | } | |
4606 | #endif | |
2ea259ee | 4607 | |
22770cba | 4608 | if (unlikely(lpfc_cmd->status)) { |
dea3101e JB |
4609 | if (lpfc_cmd->status == IOSTAT_LOCAL_REJECT && |
4610 | (lpfc_cmd->result & IOERR_DRVR_MASK)) | |
4611 | lpfc_cmd->status = IOSTAT_DRIVER_REJECT; | |
4612 | else if (lpfc_cmd->status >= IOSTAT_CNT) | |
4613 | lpfc_cmd->status = IOSTAT_DEFAULT; | |
aa1c7ee7 JS |
4614 | if (lpfc_cmd->status == IOSTAT_FCP_RSP_ERROR && |
4615 | !lpfc_cmd->fcp_rsp->rspStatus3 && | |
4616 | (lpfc_cmd->fcp_rsp->rspStatus2 & RESID_UNDER) && | |
4617 | !(vport->cfg_log_verbose & LOG_FCP_UNDER)) | |
73d91e50 JS |
4618 | logit = 0; |
4619 | else | |
4620 | logit = LOG_FCP | LOG_FCP_UNDER; | |
4621 | lpfc_printf_vlog(vport, KERN_WARNING, logit, | |
9cb78c16 | 4622 | "9030 FCP cmd x%x failed <%d/%lld> " |
5a0d80fc JS |
4623 | "status: x%x result: x%x " |
4624 | "sid: x%x did: x%x oxid: x%x " | |
4625 | "Data: x%x x%x\n", | |
73d91e50 JS |
4626 | cmd->cmnd[0], |
4627 | cmd->device ? cmd->device->id : 0xffff, | |
4628 | cmd->device ? cmd->device->lun : 0xffff, | |
4629 | lpfc_cmd->status, lpfc_cmd->result, | |
3bf41ba9 JS |
4630 | vport->fc_myDID, |
4631 | (pnode) ? pnode->nlp_DID : 0, | |
5a0d80fc JS |
4632 | phba->sli_rev == LPFC_SLI_REV4 ? |
4633 | lpfc_cmd->cur_iocbq.sli4_xritag : 0xffff, | |
73d91e50 JS |
4634 | pIocbOut->iocb.ulpContext, |
4635 | lpfc_cmd->cur_iocbq.iocb.ulpIoTag); | |
dea3101e JB |
4636 | |
4637 | switch (lpfc_cmd->status) { | |
4638 | case IOSTAT_FCP_RSP_ERROR: | |
4639 | /* Call FCP RSP handler to determine result */ | |
96e209be JS |
4640 | lpfc_handle_fcp_err(vport, lpfc_cmd, |
4641 | pIocbOut->iocb.un.fcpi.fcpi_parm); | |
dea3101e JB |
4642 | break; |
4643 | case IOSTAT_NPORT_BSY: | |
4644 | case IOSTAT_FABRIC_BSY: | |
c6668cae | 4645 | cmd->result = DID_TRANSPORT_DISRUPTED << 16; |
ea2151b4 JS |
4646 | fast_path_evt = lpfc_alloc_fast_evt(phba); |
4647 | if (!fast_path_evt) | |
4648 | break; | |
4649 | fast_path_evt->un.fabric_evt.event_type = | |
4650 | FC_REG_FABRIC_EVENT; | |
4651 | fast_path_evt->un.fabric_evt.subcategory = | |
4652 | (lpfc_cmd->status == IOSTAT_NPORT_BSY) ? | |
4653 | LPFC_EVENT_PORT_BUSY : LPFC_EVENT_FABRIC_BUSY; | |
307e3380 | 4654 | if (pnode) { |
ea2151b4 JS |
4655 | memcpy(&fast_path_evt->un.fabric_evt.wwpn, |
4656 | &pnode->nlp_portname, | |
4657 | sizeof(struct lpfc_name)); | |
4658 | memcpy(&fast_path_evt->un.fabric_evt.wwnn, | |
4659 | &pnode->nlp_nodename, | |
4660 | sizeof(struct lpfc_name)); | |
4661 | } | |
4662 | fast_path_evt->vport = vport; | |
4663 | fast_path_evt->work_evt.evt = | |
4664 | LPFC_EVT_FASTPATH_MGMT_EVT; | |
4665 | spin_lock_irqsave(&phba->hbalock, flags); | |
4666 | list_add_tail(&fast_path_evt->work_evt.evt_listp, | |
4667 | &phba->work_list); | |
4668 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
4669 | lpfc_worker_wake_up(phba); | |
dea3101e | 4670 | break; |
92d7f7b0 | 4671 | case IOSTAT_LOCAL_REJECT: |
1151e3ec | 4672 | case IOSTAT_REMOTE_STOP: |
ab56dc2e JS |
4673 | if (lpfc_cmd->result == IOERR_ELXSEC_KEY_UNWRAP_ERROR || |
4674 | lpfc_cmd->result == | |
4675 | IOERR_ELXSEC_KEY_UNWRAP_COMPARE_ERROR || | |
4676 | lpfc_cmd->result == IOERR_ELXSEC_CRYPTO_ERROR || | |
4677 | lpfc_cmd->result == | |
4678 | IOERR_ELXSEC_CRYPTO_COMPARE_ERROR) { | |
c6668cae | 4679 | cmd->result = DID_NO_CONNECT << 16; |
ab56dc2e JS |
4680 | break; |
4681 | } | |
d7c255b2 | 4682 | if (lpfc_cmd->result == IOERR_INVALID_RPI || |
92d7f7b0 | 4683 | lpfc_cmd->result == IOERR_NO_RESOURCES || |
b92938b4 JS |
4684 | lpfc_cmd->result == IOERR_ABORT_REQUESTED || |
4685 | lpfc_cmd->result == IOERR_SLER_CMD_RCV_FAILURE) { | |
c6668cae | 4686 | cmd->result = DID_REQUEUE << 16; |
58da1ffb | 4687 | break; |
e2a0a9d6 | 4688 | } |
e2a0a9d6 JS |
4689 | if ((lpfc_cmd->result == IOERR_RX_DMA_FAILED || |
4690 | lpfc_cmd->result == IOERR_TX_DMA_FAILED) && | |
4691 | pIocbOut->iocb.unsli3.sli3_bg.bgstat) { | |
4692 | if (scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) { | |
4693 | /* | |
4694 | * This is a response for a BG enabled | |
4695 | * cmd. Parse BG error | |
4696 | */ | |
4697 | lpfc_parse_bg_err(phba, lpfc_cmd, | |
4698 | pIocbOut); | |
4699 | break; | |
4700 | } else { | |
4701 | lpfc_printf_vlog(vport, KERN_WARNING, | |
4702 | LOG_BG, | |
4703 | "9031 non-zero BGSTAT " | |
6a9c52cf | 4704 | "on unprotected cmd\n"); |
e2a0a9d6 JS |
4705 | } |
4706 | } | |
1151e3ec JS |
4707 | if ((lpfc_cmd->status == IOSTAT_REMOTE_STOP) |
4708 | && (phba->sli_rev == LPFC_SLI_REV4) | |
307e3380 | 4709 | && pnode) { |
1151e3ec JS |
4710 | /* This IO was aborted by the target, we don't |
4711 | * know the rxid and because we did not send the | |
4712 | * ABTS we cannot generate and RRQ. | |
4713 | */ | |
4714 | lpfc_set_rrq_active(phba, pnode, | |
ee0f4fe1 JS |
4715 | lpfc_cmd->cur_iocbq.sli4_lxritag, |
4716 | 0, 0); | |
1151e3ec | 4717 | } |
df561f66 | 4718 | fallthrough; |
dea3101e | 4719 | default: |
c6668cae | 4720 | cmd->result = DID_ERROR << 16; |
dea3101e JB |
4721 | break; |
4722 | } | |
4723 | ||
307e3380 | 4724 | if (!pnode || (pnode->nlp_state != NLP_STE_MAPPED_NODE)) |
c6668cae JT |
4725 | cmd->result = DID_TRANSPORT_DISRUPTED << 16 | |
4726 | SAM_STAT_BUSY; | |
ab56dc2e | 4727 | } else |
c6668cae | 4728 | cmd->result = DID_OK << 16; |
dea3101e JB |
4729 | |
4730 | if (cmd->result || lpfc_cmd->fcp_rsp->rspSnsLen) { | |
4731 | uint32_t *lp = (uint32_t *)cmd->sense_buffer; | |
4732 | ||
e8b62011 | 4733 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, |
32350664 | 4734 | "0710 Iodone <%d/%llu> cmd x%px, error " |
e8b62011 JS |
4735 | "x%x SNS x%x x%x Data: x%x x%x\n", |
4736 | cmd->device->id, cmd->device->lun, cmd, | |
4737 | cmd->result, *lp, *(lp + 3), cmd->retries, | |
4738 | scsi_get_resid(cmd)); | |
dea3101e JB |
4739 | } |
4740 | ||
9df0a038 | 4741 | lpfc_update_stats(vport, lpfc_cmd); |
977b5a0a JS |
4742 | if (vport->cfg_max_scsicmpl_time && |
4743 | time_after(jiffies, lpfc_cmd->start_time + | |
4744 | msecs_to_jiffies(vport->cfg_max_scsicmpl_time))) { | |
a257bf90 | 4745 | spin_lock_irqsave(shost->host_lock, flags); |
307e3380 | 4746 | if (pnode) { |
109f6ed0 JS |
4747 | if (pnode->cmd_qdepth > |
4748 | atomic_read(&pnode->cmd_pending) && | |
4749 | (atomic_read(&pnode->cmd_pending) > | |
4750 | LPFC_MIN_TGT_QDEPTH) && | |
4751 | ((cmd->cmnd[0] == READ_10) || | |
4752 | (cmd->cmnd[0] == WRITE_10))) | |
4753 | pnode->cmd_qdepth = | |
4754 | atomic_read(&pnode->cmd_pending); | |
4755 | ||
4756 | pnode->last_change_time = jiffies; | |
4757 | } | |
a257bf90 | 4758 | spin_unlock_irqrestore(shost->host_lock, flags); |
977b5a0a | 4759 | } |
1dcb58e5 | 4760 | lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd); |
a257bf90 | 4761 | |
c2017260 JS |
4762 | lpfc_cmd->pCmd = NULL; |
4763 | spin_unlock(&lpfc_cmd->buf_lock); | |
92e3af66 | 4764 | |
2fcbc569 JS |
4765 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
4766 | if (lpfc_cmd->ts_cmd_start) { | |
4767 | lpfc_cmd->ts_isr_cmpl = pIocbIn->isr_timestamp; | |
4768 | lpfc_cmd->ts_data_io = ktime_get_ns(); | |
4769 | phba->ktime_last_cmd = lpfc_cmd->ts_data_io; | |
4770 | lpfc_io_ktime(phba, lpfc_cmd); | |
4771 | } | |
4772 | #endif | |
3e49af93 | 4773 | |
89533e9b JS |
4774 | /* The sdev is not guaranteed to be valid post scsi_done upcall. */ |
4775 | cmd->scsi_done(cmd); | |
4776 | ||
fa61a54e | 4777 | /* |
c2017260 | 4778 | * If there is an abort thread waiting for command completion |
fa61a54e JS |
4779 | * wake up the thread. |
4780 | */ | |
c2017260 | 4781 | spin_lock(&lpfc_cmd->buf_lock); |
4eb01535 | 4782 | lpfc_cmd->cur_iocbq.iocb_flag &= ~LPFC_DRIVER_ABORTED; |
b9e5a2d9 | 4783 | if (lpfc_cmd->waitq) |
4eb01535 | 4784 | wake_up(lpfc_cmd->waitq); |
c2017260 | 4785 | spin_unlock(&lpfc_cmd->buf_lock); |
fa61a54e | 4786 | |
0bd4ca25 | 4787 | lpfc_release_scsi_buf(phba, lpfc_cmd); |
dea3101e JB |
4788 | } |
4789 | ||
8b2564ec | 4790 | /** |
da255e2e | 4791 | * lpfc_scsi_prep_cmnd_buf_s3 - SLI-3 IOCB init for the IO |
0bb87e01 | 4792 | * @vport: Pointer to vport object. |
da255e2e JS |
4793 | * @lpfc_cmd: The scsi buffer which is going to be prep'ed. |
4794 | * @tmo: timeout value for the IO | |
8b2564ec | 4795 | * |
da255e2e JS |
4796 | * Based on the data-direction of the command, initialize IOCB |
4797 | * in the I/O buffer. Fill in the IOCB fields which are independent | |
4798 | * of the scsi buffer | |
9bad7671 | 4799 | * |
da255e2e | 4800 | * RETURNS 0 - SUCCESS, |
9bad7671 | 4801 | **/ |
da255e2e JS |
4802 | static int lpfc_scsi_prep_cmnd_buf_s3(struct lpfc_vport *vport, |
4803 | struct lpfc_io_buf *lpfc_cmd, | |
4804 | uint8_t tmo) | |
dea3101e | 4805 | { |
da255e2e JS |
4806 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; |
4807 | struct lpfc_iocbq *piocbq = &lpfc_cmd->cur_iocbq; | |
dea3101e JB |
4808 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; |
4809 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
da255e2e | 4810 | struct lpfc_nodelist *pnode = lpfc_cmd->ndlp; |
dea3101e | 4811 | int datadir = scsi_cmnd->sc_data_direction; |
da255e2e | 4812 | u32 fcpdl; |
58da1ffb | 4813 | |
6acb3481 | 4814 | piocbq->iocb.un.fcpi.fcpi_XRdy = 0; |
027140ea | 4815 | |
dea3101e JB |
4816 | /* |
4817 | * There are three possibilities here - use scatter-gather segment, use | |
4818 | * the single mapping, or neither. Start the lpfc command prep by | |
4819 | * bumping the bpl beyond the fcp_cmnd and fcp_rsp regions to the first | |
4820 | * data bde entry. | |
4821 | */ | |
a0b4f78f | 4822 | if (scsi_sg_count(scsi_cmnd)) { |
dea3101e JB |
4823 | if (datadir == DMA_TO_DEVICE) { |
4824 | iocb_cmd->ulpCommand = CMD_FCP_IWRITE64_CR; | |
182ba753 | 4825 | iocb_cmd->ulpPU = PARM_READ_CHECK; |
3cb01c57 JS |
4826 | if (vport->cfg_first_burst_size && |
4827 | (pnode->nlp_flag & NLP_FIRSTBURST)) { | |
da255e2e JS |
4828 | u32 xrdy_len; |
4829 | ||
98bbf5f7 | 4830 | fcpdl = scsi_bufflen(scsi_cmnd); |
da255e2e JS |
4831 | xrdy_len = min(fcpdl, |
4832 | vport->cfg_first_burst_size); | |
4833 | piocbq->iocb.un.fcpi.fcpi_XRdy = xrdy_len; | |
3cb01c57 | 4834 | } |
dea3101e | 4835 | fcp_cmnd->fcpCntl3 = WRITE_DATA; |
dea3101e JB |
4836 | } else { |
4837 | iocb_cmd->ulpCommand = CMD_FCP_IREAD64_CR; | |
4838 | iocb_cmd->ulpPU = PARM_READ_CHECK; | |
dea3101e | 4839 | fcp_cmnd->fcpCntl3 = READ_DATA; |
dea3101e JB |
4840 | } |
4841 | } else { | |
4842 | iocb_cmd->ulpCommand = CMD_FCP_ICMND64_CR; | |
4843 | iocb_cmd->un.fcpi.fcpi_parm = 0; | |
4844 | iocb_cmd->ulpPU = 0; | |
4845 | fcp_cmnd->fcpCntl3 = 0; | |
dea3101e | 4846 | } |
da255e2e | 4847 | |
dea3101e JB |
4848 | /* |
4849 | * Finish initializing those IOCB fields that are independent | |
4850 | * of the scsi_cmnd request_buffer | |
4851 | */ | |
4852 | piocbq->iocb.ulpContext = pnode->nlp_rpi; | |
4853 | if (pnode->nlp_fcp_info & NLP_FCP_2_DEVICE) | |
4854 | piocbq->iocb.ulpFCP2Rcvy = 1; | |
09372820 JS |
4855 | else |
4856 | piocbq->iocb.ulpFCP2Rcvy = 0; | |
dea3101e JB |
4857 | |
4858 | piocbq->iocb.ulpClass = (pnode->nlp_fcp_info & 0x0f); | |
4859 | piocbq->context1 = lpfc_cmd; | |
da255e2e JS |
4860 | if (!piocbq->iocb_cmpl) |
4861 | piocbq->iocb_cmpl = lpfc_scsi_cmd_iocb_cmpl; | |
4862 | piocbq->iocb.ulpTimeout = tmo; | |
2e0fef85 | 4863 | piocbq->vport = vport; |
da255e2e JS |
4864 | return 0; |
4865 | } | |
4866 | ||
4867 | /** | |
4868 | * lpfc_scsi_prep_cmnd_buf_s4 - SLI-4 WQE init for the IO | |
0bb87e01 | 4869 | * @vport: Pointer to vport object. |
da255e2e JS |
4870 | * @lpfc_cmd: The scsi buffer which is going to be prep'ed. |
4871 | * @tmo: timeout value for the IO | |
4872 | * | |
4873 | * Based on the data-direction of the command copy WQE template | |
4874 | * to I/O buffer WQE. Fill in the WQE fields which are independent | |
4875 | * of the scsi buffer | |
4876 | * | |
4877 | * RETURNS 0 - SUCCESS, | |
4878 | **/ | |
4879 | static int lpfc_scsi_prep_cmnd_buf_s4(struct lpfc_vport *vport, | |
4880 | struct lpfc_io_buf *lpfc_cmd, | |
4881 | uint8_t tmo) | |
4882 | { | |
4883 | struct lpfc_hba *phba = vport->phba; | |
4884 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
4885 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
4886 | struct lpfc_sli4_hdw_queue *hdwq = NULL; | |
4887 | struct lpfc_iocbq *pwqeq = &lpfc_cmd->cur_iocbq; | |
4888 | struct lpfc_nodelist *pnode = lpfc_cmd->ndlp; | |
4889 | union lpfc_wqe128 *wqe = &pwqeq->wqe; | |
4890 | u16 idx = lpfc_cmd->hdwq_no; | |
4891 | int datadir = scsi_cmnd->sc_data_direction; | |
4892 | ||
4893 | hdwq = &phba->sli4_hba.hdwq[idx]; | |
4894 | ||
4895 | /* Initialize 64 bytes only */ | |
4896 | memset(wqe, 0, sizeof(union lpfc_wqe128)); | |
4897 | ||
4898 | /* | |
4899 | * There are three possibilities here - use scatter-gather segment, use | |
4900 | * the single mapping, or neither. | |
4901 | */ | |
4902 | if (scsi_sg_count(scsi_cmnd)) { | |
4903 | if (datadir == DMA_TO_DEVICE) { | |
4904 | /* From the iwrite template, initialize words 7 - 11 */ | |
4905 | memcpy(&wqe->words[7], | |
4906 | &lpfc_iwrite_cmd_template.words[7], | |
4907 | sizeof(uint32_t) * 5); | |
4908 | ||
4909 | fcp_cmnd->fcpCntl3 = WRITE_DATA; | |
4910 | if (hdwq) | |
4911 | hdwq->scsi_cstat.output_requests++; | |
4912 | } else { | |
4913 | /* From the iread template, initialize words 7 - 11 */ | |
4914 | memcpy(&wqe->words[7], | |
4915 | &lpfc_iread_cmd_template.words[7], | |
4916 | sizeof(uint32_t) * 5); | |
4917 | ||
4918 | /* Word 7 */ | |
4919 | bf_set(wqe_tmo, &wqe->fcp_iread.wqe_com, tmo); | |
4920 | ||
4921 | fcp_cmnd->fcpCntl3 = READ_DATA; | |
4922 | if (hdwq) | |
4923 | hdwq->scsi_cstat.input_requests++; | |
02243836 JS |
4924 | |
4925 | /* For a CMF Managed port, iod must be zero'ed */ | |
4926 | if (phba->cmf_active_mode == LPFC_CFG_MANAGED) | |
4927 | bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, | |
4928 | LPFC_WQE_IOD_NONE); | |
da255e2e JS |
4929 | } |
4930 | } else { | |
4931 | /* From the icmnd template, initialize words 4 - 11 */ | |
4932 | memcpy(&wqe->words[4], &lpfc_icmnd_cmd_template.words[4], | |
4933 | sizeof(uint32_t) * 8); | |
4934 | ||
4935 | /* Word 7 */ | |
4936 | bf_set(wqe_tmo, &wqe->fcp_icmd.wqe_com, tmo); | |
4937 | ||
4938 | fcp_cmnd->fcpCntl3 = 0; | |
4939 | if (hdwq) | |
4940 | hdwq->scsi_cstat.control_requests++; | |
4941 | } | |
4942 | ||
4943 | /* | |
4944 | * Finish initializing those WQE fields that are independent | |
4945 | * of the request_buffer | |
4946 | */ | |
4947 | ||
4948 | /* Word 3 */ | |
4949 | bf_set(payload_offset_len, &wqe->fcp_icmd, | |
4950 | sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp)); | |
4951 | ||
4952 | /* Word 6 */ | |
4953 | bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, | |
4954 | phba->sli4_hba.rpi_ids[pnode->nlp_rpi]); | |
4955 | bf_set(wqe_xri_tag, &wqe->generic.wqe_com, pwqeq->sli4_xritag); | |
4956 | ||
4957 | /* Word 7*/ | |
4958 | if (pnode->nlp_fcp_info & NLP_FCP_2_DEVICE) | |
4959 | bf_set(wqe_erp, &wqe->generic.wqe_com, 1); | |
4960 | ||
4961 | bf_set(wqe_class, &wqe->generic.wqe_com, | |
4962 | (pnode->nlp_fcp_info & 0x0f)); | |
4963 | ||
4964 | /* Word 8 */ | |
4965 | wqe->generic.wqe_com.abort_tag = pwqeq->iotag; | |
4966 | ||
4967 | /* Word 9 */ | |
4968 | bf_set(wqe_reqtag, &wqe->generic.wqe_com, pwqeq->iotag); | |
4969 | ||
4970 | pwqeq->vport = vport; | |
4971 | pwqeq->vport = vport; | |
4972 | pwqeq->context1 = lpfc_cmd; | |
4973 | pwqeq->hba_wqidx = lpfc_cmd->hdwq_no; | |
96e209be | 4974 | pwqeq->wqe_cmpl = lpfc_fcp_io_cmd_wqe_cmpl; |
da255e2e JS |
4975 | |
4976 | return 0; | |
4977 | } | |
4978 | ||
4979 | /** | |
4980 | * lpfc_scsi_prep_cmnd - Wrapper func for convert scsi cmnd to FCP info unit | |
4981 | * @vport: The virtual port for which this call is being executed. | |
4982 | * @lpfc_cmd: The scsi command which needs to send. | |
4983 | * @pnode: Pointer to lpfc_nodelist. | |
4984 | * | |
4985 | * This routine initializes fcp_cmnd and iocb data structure from scsi command | |
4986 | * to transfer for device with SLI3 interface spec. | |
4987 | **/ | |
4988 | static int | |
4989 | lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_io_buf *lpfc_cmd, | |
4990 | struct lpfc_nodelist *pnode) | |
4991 | { | |
4992 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
4993 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
4994 | u8 *ptr; | |
4995 | ||
4996 | if (!pnode) | |
4997 | return 0; | |
4998 | ||
4999 | lpfc_cmd->fcp_rsp->rspSnsLen = 0; | |
5000 | /* clear task management bits */ | |
5001 | lpfc_cmd->fcp_cmnd->fcpCntl2 = 0; | |
5002 | ||
5003 | int_to_scsilun(lpfc_cmd->pCmd->device->lun, | |
5004 | &lpfc_cmd->fcp_cmnd->fcp_lun); | |
5005 | ||
5006 | ptr = &fcp_cmnd->fcpCdb[0]; | |
5007 | memcpy(ptr, scsi_cmnd->cmnd, scsi_cmnd->cmd_len); | |
5008 | if (scsi_cmnd->cmd_len < LPFC_FCP_CDB_LEN) { | |
5009 | ptr += scsi_cmnd->cmd_len; | |
5010 | memset(ptr, 0, (LPFC_FCP_CDB_LEN - scsi_cmnd->cmd_len)); | |
5011 | } | |
5012 | ||
5013 | fcp_cmnd->fcpCntl1 = SIMPLE_Q; | |
5014 | ||
5015 | lpfc_scsi_prep_cmnd_buf(vport, lpfc_cmd, lpfc_cmd->timeout); | |
5016 | ||
5017 | return 0; | |
dea3101e JB |
5018 | } |
5019 | ||
da0436e9 | 5020 | /** |
6d368e53 | 5021 | * lpfc_scsi_prep_task_mgmt_cmd - Convert SLI3 scsi TM cmd to FCP info unit |
9bad7671 | 5022 | * @vport: The virtual port for which this call is being executed. |
c490850a | 5023 | * @lpfc_cmd: Pointer to lpfc_io_buf data structure. |
9bad7671 JS |
5024 | * @lun: Logical unit number. |
5025 | * @task_mgmt_cmd: SCSI task management command. | |
5026 | * | |
3772a991 JS |
5027 | * This routine creates FCP information unit corresponding to @task_mgmt_cmd |
5028 | * for device with SLI-3 interface spec. | |
9bad7671 JS |
5029 | * |
5030 | * Return codes: | |
5031 | * 0 - Error | |
5032 | * 1 - Success | |
5033 | **/ | |
dea3101e | 5034 | static int |
f1126688 | 5035 | lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_vport *vport, |
c490850a | 5036 | struct lpfc_io_buf *lpfc_cmd, |
9cb78c16 | 5037 | uint64_t lun, |
dea3101e JB |
5038 | uint8_t task_mgmt_cmd) |
5039 | { | |
dea3101e JB |
5040 | struct lpfc_iocbq *piocbq; |
5041 | IOCB_t *piocb; | |
5042 | struct fcp_cmnd *fcp_cmnd; | |
0b18ac42 | 5043 | struct lpfc_rport_data *rdata = lpfc_cmd->rdata; |
dea3101e JB |
5044 | struct lpfc_nodelist *ndlp = rdata->pnode; |
5045 | ||
307e3380 | 5046 | if (!ndlp || ndlp->nlp_state != NLP_STE_MAPPED_NODE) |
dea3101e | 5047 | return 0; |
dea3101e | 5048 | |
dea3101e | 5049 | piocbq = &(lpfc_cmd->cur_iocbq); |
2e0fef85 JS |
5050 | piocbq->vport = vport; |
5051 | ||
dea3101e JB |
5052 | piocb = &piocbq->iocb; |
5053 | ||
5054 | fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
34b02dcd JS |
5055 | /* Clear out any old data in the FCP command area */ |
5056 | memset(fcp_cmnd, 0, sizeof(struct fcp_cmnd)); | |
5057 | int_to_scsilun(lun, &fcp_cmnd->fcp_lun); | |
dea3101e | 5058 | fcp_cmnd->fcpCntl2 = task_mgmt_cmd; |
e2a0a9d6 JS |
5059 | if (vport->phba->sli_rev == 3 && |
5060 | !(vport->phba->sli3_options & LPFC_SLI3_BG_ENABLED)) | |
34b02dcd | 5061 | lpfc_fcpcmd_to_iocb(piocb->unsli3.fcp_ext.icd, fcp_cmnd); |
dea3101e | 5062 | piocb->ulpCommand = CMD_FCP_ICMND64_CR; |
dea3101e | 5063 | piocb->ulpContext = ndlp->nlp_rpi; |
6d368e53 JS |
5064 | if (vport->phba->sli_rev == LPFC_SLI_REV4) { |
5065 | piocb->ulpContext = | |
5066 | vport->phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; | |
5067 | } | |
53151bbb | 5068 | piocb->ulpFCP2Rcvy = (ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) ? 1 : 0; |
dea3101e | 5069 | piocb->ulpClass = (ndlp->nlp_fcp_info & 0x0f); |
f9226c20 JS |
5070 | piocb->ulpPU = 0; |
5071 | piocb->un.fcpi.fcpi_parm = 0; | |
dea3101e JB |
5072 | |
5073 | /* ulpTimeout is only one byte */ | |
5074 | if (lpfc_cmd->timeout > 0xff) { | |
5075 | /* | |
5076 | * Do not timeout the command at the firmware level. | |
5077 | * The driver will provide the timeout mechanism. | |
5078 | */ | |
5079 | piocb->ulpTimeout = 0; | |
f1126688 | 5080 | } else |
dea3101e | 5081 | piocb->ulpTimeout = lpfc_cmd->timeout; |
da0436e9 | 5082 | |
f1126688 JS |
5083 | if (vport->phba->sli_rev == LPFC_SLI_REV4) |
5084 | lpfc_sli4_set_rsp_sgl_last(vport->phba, lpfc_cmd); | |
3772a991 | 5085 | |
f1126688 | 5086 | return 1; |
3772a991 JS |
5087 | } |
5088 | ||
5089 | /** | |
25985edc | 5090 | * lpfc_scsi_api_table_setup - Set up scsi api function jump table |
3772a991 JS |
5091 | * @phba: The hba struct for which this call is being executed. |
5092 | * @dev_grp: The HBA PCI-Device group number. | |
5093 | * | |
5094 | * This routine sets up the SCSI interface API function jump table in @phba | |
5095 | * struct. | |
5096 | * Returns: 0 - success, -ENODEV - failure. | |
5097 | **/ | |
5098 | int | |
5099 | lpfc_scsi_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) | |
5100 | { | |
5101 | ||
f1126688 | 5102 | phba->lpfc_scsi_unprep_dma_buf = lpfc_scsi_unprep_dma_buf; |
f1126688 | 5103 | |
3772a991 JS |
5104 | switch (dev_grp) { |
5105 | case LPFC_PCI_DEV_LP: | |
3772a991 | 5106 | phba->lpfc_scsi_prep_dma_buf = lpfc_scsi_prep_dma_buf_s3; |
acd6859b | 5107 | phba->lpfc_bg_scsi_prep_dma_buf = lpfc_bg_scsi_prep_dma_buf_s3; |
3772a991 | 5108 | phba->lpfc_release_scsi_buf = lpfc_release_scsi_buf_s3; |
19ca7609 | 5109 | phba->lpfc_get_scsi_buf = lpfc_get_scsi_buf_s3; |
da255e2e | 5110 | phba->lpfc_scsi_prep_cmnd_buf = lpfc_scsi_prep_cmnd_buf_s3; |
3772a991 | 5111 | break; |
da0436e9 | 5112 | case LPFC_PCI_DEV_OC: |
da0436e9 | 5113 | phba->lpfc_scsi_prep_dma_buf = lpfc_scsi_prep_dma_buf_s4; |
acd6859b | 5114 | phba->lpfc_bg_scsi_prep_dma_buf = lpfc_bg_scsi_prep_dma_buf_s4; |
da0436e9 | 5115 | phba->lpfc_release_scsi_buf = lpfc_release_scsi_buf_s4; |
19ca7609 | 5116 | phba->lpfc_get_scsi_buf = lpfc_get_scsi_buf_s4; |
da255e2e | 5117 | phba->lpfc_scsi_prep_cmnd_buf = lpfc_scsi_prep_cmnd_buf_s4; |
da0436e9 | 5118 | break; |
3772a991 | 5119 | default: |
2165bfec | 5120 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
3772a991 JS |
5121 | "1418 Invalid HBA PCI-device group: 0x%x\n", |
5122 | dev_grp); | |
5123 | return -ENODEV; | |
3772a991 | 5124 | } |
3772a991 | 5125 | phba->lpfc_rampdown_queue_depth = lpfc_rampdown_queue_depth; |
84d1b006 | 5126 | phba->lpfc_scsi_cmd_iocb_cmpl = lpfc_scsi_cmd_iocb_cmpl; |
3772a991 JS |
5127 | return 0; |
5128 | } | |
5129 | ||
9bad7671 | 5130 | /** |
0bb87e01 | 5131 | * lpfc_tskmgmt_def_cmpl - IOCB completion routine for task management command |
9bad7671 JS |
5132 | * @phba: The Hba for which this call is being executed. |
5133 | * @cmdiocbq: Pointer to lpfc_iocbq data structure. | |
5134 | * @rspiocbq: Pointer to lpfc_iocbq data structure. | |
5135 | * | |
5136 | * This routine is IOCB completion routine for device reset and target reset | |
5137 | * routine. This routine release scsi buffer associated with lpfc_cmd. | |
5138 | **/ | |
7054a606 JS |
5139 | static void |
5140 | lpfc_tskmgmt_def_cmpl(struct lpfc_hba *phba, | |
5141 | struct lpfc_iocbq *cmdiocbq, | |
5142 | struct lpfc_iocbq *rspiocbq) | |
5143 | { | |
c490850a JS |
5144 | struct lpfc_io_buf *lpfc_cmd = |
5145 | (struct lpfc_io_buf *) cmdiocbq->context1; | |
7054a606 JS |
5146 | if (lpfc_cmd) |
5147 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
5148 | return; | |
5149 | } | |
5150 | ||
5021267a JS |
5151 | /** |
5152 | * lpfc_check_pci_resettable - Walks list of devices on pci_dev's bus to check | |
5153 | * if issuing a pci_bus_reset is possibly unsafe | |
5154 | * @phba: lpfc_hba pointer. | |
5155 | * | |
5156 | * Description: | |
5157 | * Walks the bus_list to ensure only PCI devices with Emulex | |
5158 | * vendor id, device ids that support hot reset, and only one occurrence | |
5159 | * of function 0. | |
5160 | * | |
5161 | * Returns: | |
5162 | * -EBADSLT, detected invalid device | |
5163 | * 0, successful | |
5164 | */ | |
5165 | int | |
372c187b | 5166 | lpfc_check_pci_resettable(struct lpfc_hba *phba) |
5021267a JS |
5167 | { |
5168 | const struct pci_dev *pdev = phba->pcidev; | |
5169 | struct pci_dev *ptr = NULL; | |
5170 | u8 counter = 0; | |
5171 | ||
5172 | /* Walk the list of devices on the pci_dev's bus */ | |
5173 | list_for_each_entry(ptr, &pdev->bus->devices, bus_list) { | |
5174 | /* Check for Emulex Vendor ID */ | |
5175 | if (ptr->vendor != PCI_VENDOR_ID_EMULEX) { | |
5176 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
5177 | "8346 Non-Emulex vendor found: " | |
5178 | "0x%04x\n", ptr->vendor); | |
5179 | return -EBADSLT; | |
5180 | } | |
5181 | ||
5182 | /* Check for valid Emulex Device ID */ | |
f6c5e6c4 JS |
5183 | if (phba->sli_rev != LPFC_SLI_REV4 || |
5184 | phba->hba_flag & HBA_FCOE_MODE) { | |
5021267a | 5185 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
a94a40eb | 5186 | "8347 Incapable PCI reset device: " |
5021267a JS |
5187 | "0x%04x\n", ptr->device); |
5188 | return -EBADSLT; | |
5189 | } | |
5190 | ||
5191 | /* Check for only one function 0 ID to ensure only one HBA on | |
5192 | * secondary bus | |
5193 | */ | |
5194 | if (ptr->devfn == 0) { | |
5195 | if (++counter > 1) { | |
5196 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
5197 | "8348 More than one device on " | |
5198 | "secondary bus found\n"); | |
5199 | return -EBADSLT; | |
5200 | } | |
5201 | } | |
5202 | } | |
5203 | ||
5204 | return 0; | |
5205 | } | |
5206 | ||
9bad7671 | 5207 | /** |
3621a710 | 5208 | * lpfc_info - Info entry point of scsi_host_template data structure |
9bad7671 JS |
5209 | * @host: The scsi host for which this call is being executed. |
5210 | * | |
5211 | * This routine provides module information about hba. | |
5212 | * | |
5213 | * Reutrn code: | |
5214 | * Pointer to char - Success. | |
5215 | **/ | |
dea3101e JB |
5216 | const char * |
5217 | lpfc_info(struct Scsi_Host *host) | |
5218 | { | |
2e0fef85 JS |
5219 | struct lpfc_vport *vport = (struct lpfc_vport *) host->hostdata; |
5220 | struct lpfc_hba *phba = vport->phba; | |
5021267a JS |
5221 | int link_speed = 0; |
5222 | static char lpfcinfobuf[384]; | |
5223 | char tmp[384] = {0}; | |
dea3101e | 5224 | |
5021267a | 5225 | memset(lpfcinfobuf, 0, sizeof(lpfcinfobuf)); |
dea3101e | 5226 | if (phba && phba->pcidev){ |
5021267a JS |
5227 | /* Model Description */ |
5228 | scnprintf(tmp, sizeof(tmp), phba->ModelDesc); | |
5229 | if (strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf)) >= | |
5230 | sizeof(lpfcinfobuf)) | |
5231 | goto buffer_done; | |
5232 | ||
5233 | /* PCI Info */ | |
5234 | scnprintf(tmp, sizeof(tmp), | |
5235 | " on PCI bus %02x device %02x irq %d", | |
5236 | phba->pcidev->bus->number, phba->pcidev->devfn, | |
5237 | phba->pcidev->irq); | |
5238 | if (strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf)) >= | |
5239 | sizeof(lpfcinfobuf)) | |
5240 | goto buffer_done; | |
5241 | ||
5242 | /* Port Number */ | |
dea3101e | 5243 | if (phba->Port[0]) { |
5021267a JS |
5244 | scnprintf(tmp, sizeof(tmp), " port %s", phba->Port); |
5245 | if (strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf)) >= | |
5246 | sizeof(lpfcinfobuf)) | |
5247 | goto buffer_done; | |
dea3101e | 5248 | } |
5021267a JS |
5249 | |
5250 | /* Link Speed */ | |
a085e87c | 5251 | link_speed = lpfc_sli_port_speed_get(phba); |
5021267a JS |
5252 | if (link_speed != 0) { |
5253 | scnprintf(tmp, sizeof(tmp), | |
5254 | " Logical Link Speed: %d Mbps", link_speed); | |
5255 | if (strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf)) >= | |
5256 | sizeof(lpfcinfobuf)) | |
5257 | goto buffer_done; | |
5258 | } | |
5259 | ||
5260 | /* PCI resettable */ | |
5261 | if (!lpfc_check_pci_resettable(phba)) { | |
5262 | scnprintf(tmp, sizeof(tmp), " PCI resettable"); | |
5263 | strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf)); | |
5264 | } | |
dea3101e | 5265 | } |
5021267a JS |
5266 | |
5267 | buffer_done: | |
dea3101e JB |
5268 | return lpfcinfobuf; |
5269 | } | |
5270 | ||
9bad7671 | 5271 | /** |
0bb87e01 | 5272 | * lpfc_poll_rearm_timer - Routine to modify fcp_poll timer of hba |
9bad7671 JS |
5273 | * @phba: The Hba for which this call is being executed. |
5274 | * | |
5275 | * This routine modifies fcp_poll_timer field of @phba by cfg_poll_tmo. | |
5276 | * The default value of cfg_poll_tmo is 10 milliseconds. | |
5277 | **/ | |
875fbdfe JSEC |
5278 | static __inline__ void lpfc_poll_rearm_timer(struct lpfc_hba * phba) |
5279 | { | |
5280 | unsigned long poll_tmo_expires = | |
5281 | (jiffies + msecs_to_jiffies(phba->cfg_poll_tmo)); | |
5282 | ||
895427bd | 5283 | if (!list_empty(&phba->sli.sli3_ring[LPFC_FCP_RING].txcmplq)) |
875fbdfe JSEC |
5284 | mod_timer(&phba->fcp_poll_timer, |
5285 | poll_tmo_expires); | |
5286 | } | |
5287 | ||
9bad7671 | 5288 | /** |
3621a710 | 5289 | * lpfc_poll_start_timer - Routine to start fcp_poll_timer of HBA |
9bad7671 JS |
5290 | * @phba: The Hba for which this call is being executed. |
5291 | * | |
5292 | * This routine starts the fcp_poll_timer of @phba. | |
5293 | **/ | |
875fbdfe JSEC |
5294 | void lpfc_poll_start_timer(struct lpfc_hba * phba) |
5295 | { | |
5296 | lpfc_poll_rearm_timer(phba); | |
5297 | } | |
5298 | ||
9bad7671 | 5299 | /** |
3621a710 | 5300 | * lpfc_poll_timeout - Restart polling timer |
eceee00e | 5301 | * @t: Timer construct where lpfc_hba data structure pointer is obtained. |
9bad7671 JS |
5302 | * |
5303 | * This routine restarts fcp_poll timer, when FCP ring polling is enable | |
5304 | * and FCP Ring interrupt is disable. | |
5305 | **/ | |
f22eb4d3 | 5306 | void lpfc_poll_timeout(struct timer_list *t) |
875fbdfe | 5307 | { |
f22eb4d3 | 5308 | struct lpfc_hba *phba = from_timer(phba, t, fcp_poll_timer); |
875fbdfe JSEC |
5309 | |
5310 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { | |
45ed1190 | 5311 | lpfc_sli_handle_fast_ring_event(phba, |
895427bd | 5312 | &phba->sli.sli3_ring[LPFC_FCP_RING], HA_R0RE_REQ); |
45ed1190 | 5313 | |
875fbdfe JSEC |
5314 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
5315 | lpfc_poll_rearm_timer(phba); | |
5316 | } | |
875fbdfe JSEC |
5317 | } |
5318 | ||
dc50715e GS |
5319 | /* |
5320 | * lpfc_get_vmid_from_hashtable - search the UUID in the hash table | |
5321 | * @vport: The virtual port for which this call is being executed. | |
5322 | * @hash: calculated hash value | |
5323 | * @buf: uuid associated with the VE | |
5324 | * Return the VMID entry associated with the UUID | |
5325 | * Make sure to acquire the appropriate lock before invoking this routine. | |
5326 | */ | |
5327 | struct lpfc_vmid *lpfc_get_vmid_from_hashtable(struct lpfc_vport *vport, | |
5328 | u32 hash, u8 *buf) | |
5329 | { | |
5330 | struct lpfc_vmid *vmp; | |
5331 | ||
5332 | hash_for_each_possible(vport->hash_table, vmp, hnode, hash) { | |
5333 | if (memcmp(&vmp->host_vmid[0], buf, 16) == 0) | |
5334 | return vmp; | |
5335 | } | |
5336 | return NULL; | |
5337 | } | |
5338 | ||
5339 | /* | |
5340 | * lpfc_put_vmid_in_hashtable - put the VMID in the hash table | |
5341 | * @vport: The virtual port for which this call is being executed. | |
5342 | * @hash - calculated hash value | |
5343 | * @vmp: Pointer to a VMID entry representing a VM sending I/O | |
5344 | * | |
5345 | * This routine will insert the newly acquired VMID entity in the hash table. | |
5346 | * Make sure to acquire the appropriate lock before invoking this routine. | |
5347 | */ | |
5348 | static void | |
5349 | lpfc_put_vmid_in_hashtable(struct lpfc_vport *vport, u32 hash, | |
5350 | struct lpfc_vmid *vmp) | |
5351 | { | |
5352 | hash_add(vport->hash_table, &vmp->hnode, hash); | |
5353 | } | |
5354 | ||
5355 | /* | |
5356 | * lpfc_vmid_hash_fn - create a hash value of the UUID | |
5357 | * @vmid: uuid associated with the VE | |
5358 | * @len: length of the VMID string | |
5359 | * Returns the calculated hash value | |
5360 | */ | |
5361 | int lpfc_vmid_hash_fn(const char *vmid, int len) | |
5362 | { | |
5363 | int c; | |
5364 | int hash = 0; | |
5365 | ||
5366 | if (len == 0) | |
5367 | return 0; | |
5368 | while (len--) { | |
5369 | c = *vmid++; | |
5370 | if (c >= 'A' && c <= 'Z') | |
5371 | c += 'a' - 'A'; | |
5372 | ||
5373 | hash = (hash + (c << LPFC_VMID_HASH_SHIFT) + | |
5374 | (c >> LPFC_VMID_HASH_SHIFT)) * 19; | |
5375 | } | |
5376 | ||
5377 | return hash & LPFC_VMID_HASH_MASK; | |
5378 | } | |
5379 | ||
5380 | /* | |
5381 | * lpfc_vmid_update_entry - update the vmid entry in the hash table | |
5382 | * @vport: The virtual port for which this call is being executed. | |
5383 | * @cmd: address of scsi cmd descriptor | |
5384 | * @vmp: Pointer to a VMID entry representing a VM sending I/O | |
5385 | * @tag: VMID tag | |
5386 | */ | |
5387 | static void lpfc_vmid_update_entry(struct lpfc_vport *vport, struct scsi_cmnd | |
5388 | *cmd, struct lpfc_vmid *vmp, | |
5389 | union lpfc_vmid_io_tag *tag) | |
5390 | { | |
5391 | u64 *lta; | |
5392 | ||
5393 | if (vport->vmid_priority_tagging) | |
5394 | tag->cs_ctl_vmid = vmp->un.cs_ctl_vmid; | |
5395 | else | |
5396 | tag->app_id = vmp->un.app_id; | |
5397 | ||
5398 | if (cmd->sc_data_direction == DMA_TO_DEVICE) | |
5399 | vmp->io_wr_cnt++; | |
5400 | else | |
5401 | vmp->io_rd_cnt++; | |
5402 | ||
5403 | /* update the last access timestamp in the table */ | |
5404 | lta = per_cpu_ptr(vmp->last_io_time, raw_smp_processor_id()); | |
5405 | *lta = jiffies; | |
5406 | } | |
5407 | ||
5408 | static void lpfc_vmid_assign_cs_ctl(struct lpfc_vport *vport, | |
5409 | struct lpfc_vmid *vmid) | |
5410 | { | |
5411 | u32 hash; | |
5412 | struct lpfc_vmid *pvmid; | |
5413 | ||
5414 | if (vport->port_type == LPFC_PHYSICAL_PORT) { | |
5415 | vmid->un.cs_ctl_vmid = lpfc_vmid_get_cs_ctl(vport); | |
5416 | } else { | |
5417 | hash = lpfc_vmid_hash_fn(vmid->host_vmid, vmid->vmid_len); | |
5418 | pvmid = | |
5419 | lpfc_get_vmid_from_hashtable(vport->phba->pport, hash, | |
5420 | vmid->host_vmid); | |
5421 | if (pvmid) | |
5422 | vmid->un.cs_ctl_vmid = pvmid->un.cs_ctl_vmid; | |
5423 | else | |
5424 | vmid->un.cs_ctl_vmid = lpfc_vmid_get_cs_ctl(vport); | |
5425 | } | |
5426 | } | |
5427 | ||
33c79741 GS |
5428 | /* |
5429 | * lpfc_vmid_get_appid - get the VMID associated with the UUID | |
5430 | * @vport: The virtual port for which this call is being executed. | |
5431 | * @uuid: UUID associated with the VE | |
5432 | * @cmd: address of scsi_cmd descriptor | |
5433 | * @tag: VMID tag | |
5434 | * Returns status of the function | |
5435 | */ | |
5436 | static int lpfc_vmid_get_appid(struct lpfc_vport *vport, char *uuid, struct | |
5437 | scsi_cmnd * cmd, union lpfc_vmid_io_tag *tag) | |
5438 | { | |
5439 | struct lpfc_vmid *vmp = NULL; | |
5440 | int hash, len, rc, i; | |
5441 | ||
5442 | /* check if QFPA is complete */ | |
5443 | if (lpfc_vmid_is_type_priority_tag(vport) && !(vport->vmid_flag & | |
5444 | LPFC_VMID_QFPA_CMPL)) { | |
5445 | vport->work_port_events |= WORKER_CHECK_VMID_ISSUE_QFPA; | |
5446 | return -EAGAIN; | |
5447 | } | |
5448 | ||
5449 | /* search if the UUID has already been mapped to the VMID */ | |
5450 | len = strlen(uuid); | |
5451 | hash = lpfc_vmid_hash_fn(uuid, len); | |
5452 | ||
5453 | /* search for the VMID in the table */ | |
5454 | read_lock(&vport->vmid_lock); | |
5455 | vmp = lpfc_get_vmid_from_hashtable(vport, hash, uuid); | |
5456 | ||
5457 | /* if found, check if its already registered */ | |
5458 | if (vmp && vmp->flag & LPFC_VMID_REGISTERED) { | |
5459 | read_unlock(&vport->vmid_lock); | |
5460 | lpfc_vmid_update_entry(vport, cmd, vmp, tag); | |
5461 | rc = 0; | |
5462 | } else if (vmp && (vmp->flag & LPFC_VMID_REQ_REGISTER || | |
5463 | vmp->flag & LPFC_VMID_DE_REGISTER)) { | |
5464 | /* else if register or dereg request has already been sent */ | |
5465 | /* Hence VMID tag will not be added for this I/O */ | |
5466 | read_unlock(&vport->vmid_lock); | |
5467 | rc = -EBUSY; | |
5468 | } else { | |
5469 | /* The VMID was not found in the hashtable. At this point, */ | |
5470 | /* drop the read lock first before proceeding further */ | |
5471 | read_unlock(&vport->vmid_lock); | |
5472 | /* start the process to obtain one as per the */ | |
5473 | /* type of the VMID indicated */ | |
5474 | write_lock(&vport->vmid_lock); | |
5475 | vmp = lpfc_get_vmid_from_hashtable(vport, hash, uuid); | |
5476 | ||
5477 | /* while the read lock was released, in case the entry was */ | |
5478 | /* added by other context or is in process of being added */ | |
5479 | if (vmp && vmp->flag & LPFC_VMID_REGISTERED) { | |
5480 | lpfc_vmid_update_entry(vport, cmd, vmp, tag); | |
5481 | write_unlock(&vport->vmid_lock); | |
5482 | return 0; | |
5483 | } else if (vmp && vmp->flag & LPFC_VMID_REQ_REGISTER) { | |
5484 | write_unlock(&vport->vmid_lock); | |
5485 | return -EBUSY; | |
5486 | } | |
5487 | ||
5488 | /* else search and allocate a free slot in the hash table */ | |
5489 | if (vport->cur_vmid_cnt < vport->max_vmid) { | |
5490 | for (i = 0; i < vport->max_vmid; i++) { | |
5491 | vmp = vport->vmid + i; | |
5492 | if (vmp->flag == LPFC_VMID_SLOT_FREE) | |
5493 | break; | |
5494 | } | |
5495 | if (i == vport->max_vmid) | |
5496 | vmp = NULL; | |
5497 | } else { | |
5498 | vmp = NULL; | |
5499 | } | |
5500 | ||
5501 | if (!vmp) { | |
5502 | write_unlock(&vport->vmid_lock); | |
5503 | return -ENOMEM; | |
5504 | } | |
5505 | ||
5506 | /* Add the vmid and register */ | |
5507 | lpfc_put_vmid_in_hashtable(vport, hash, vmp); | |
5508 | vmp->vmid_len = len; | |
5509 | memcpy(vmp->host_vmid, uuid, vmp->vmid_len); | |
5510 | vmp->io_rd_cnt = 0; | |
5511 | vmp->io_wr_cnt = 0; | |
5512 | vmp->flag = LPFC_VMID_SLOT_USED; | |
5513 | ||
5514 | vmp->delete_inactive = | |
5515 | vport->vmid_inactivity_timeout ? 1 : 0; | |
5516 | ||
5517 | /* if type priority tag, get next available VMID */ | |
5518 | if (lpfc_vmid_is_type_priority_tag(vport)) | |
5519 | lpfc_vmid_assign_cs_ctl(vport, vmp); | |
5520 | ||
5521 | /* allocate the per cpu variable for holding */ | |
5522 | /* the last access time stamp only if VMID is enabled */ | |
5523 | if (!vmp->last_io_time) | |
5524 | vmp->last_io_time = __alloc_percpu(sizeof(u64), | |
5525 | __alignof__(struct | |
5526 | lpfc_vmid)); | |
5527 | if (!vmp->last_io_time) { | |
5528 | hash_del(&vmp->hnode); | |
5529 | vmp->flag = LPFC_VMID_SLOT_FREE; | |
5530 | write_unlock(&vport->vmid_lock); | |
5531 | return -EIO; | |
5532 | } | |
5533 | ||
5534 | write_unlock(&vport->vmid_lock); | |
5535 | ||
5536 | /* complete transaction with switch */ | |
5537 | if (lpfc_vmid_is_type_priority_tag(vport)) | |
5538 | rc = lpfc_vmid_uvem(vport, vmp, true); | |
5539 | else | |
5540 | rc = lpfc_vmid_cmd(vport, SLI_CTAS_RAPP_IDENT, vmp); | |
5541 | if (!rc) { | |
5542 | write_lock(&vport->vmid_lock); | |
5543 | vport->cur_vmid_cnt++; | |
5544 | vmp->flag |= LPFC_VMID_REQ_REGISTER; | |
5545 | write_unlock(&vport->vmid_lock); | |
5546 | } else { | |
5547 | write_lock(&vport->vmid_lock); | |
5548 | hash_del(&vmp->hnode); | |
5549 | vmp->flag = LPFC_VMID_SLOT_FREE; | |
5550 | free_percpu(vmp->last_io_time); | |
5551 | write_unlock(&vport->vmid_lock); | |
5552 | return -EIO; | |
5553 | } | |
5554 | ||
5555 | /* finally, enable the idle timer once */ | |
5556 | if (!(vport->phba->pport->vmid_flag & LPFC_VMID_TIMER_ENBLD)) { | |
5557 | mod_timer(&vport->phba->inactive_vmid_poll, | |
5558 | jiffies + | |
5559 | msecs_to_jiffies(1000 * LPFC_VMID_TIMER)); | |
5560 | vport->phba->pport->vmid_flag |= LPFC_VMID_TIMER_ENBLD; | |
5561 | } | |
5562 | } | |
5563 | return rc; | |
5564 | } | |
5565 | ||
5566 | /* | |
5567 | * lpfc_is_command_vm_io - get the UUID from blk cgroup | |
5568 | * @cmd: Pointer to scsi_cmnd data structure | |
5569 | * Returns UUID if present, otherwise NULL | |
5570 | */ | |
5571 | static char *lpfc_is_command_vm_io(struct scsi_cmnd *cmd) | |
5572 | { | |
4221c8a4 | 5573 | struct bio *bio = scsi_cmd_to_rq(cmd)->bio; |
33c79741 | 5574 | |
4221c8a4 | 5575 | return bio ? blkcg_get_fc_appid(bio) : NULL; |
33c79741 GS |
5576 | } |
5577 | ||
9bad7671 | 5578 | /** |
3621a710 | 5579 | * lpfc_queuecommand - scsi_host_template queuecommand entry point |
eceee00e | 5580 | * @shost: kernel scsi host pointer. |
9bad7671 | 5581 | * @cmnd: Pointer to scsi_cmnd data structure. |
9bad7671 JS |
5582 | * |
5583 | * Driver registers this routine to scsi midlayer to submit a @cmd to process. | |
5584 | * This routine prepares an IOCB from scsi command and provides to firmware. | |
5585 | * The @done callback is invoked after driver finished processing the command. | |
5586 | * | |
5587 | * Return value : | |
5588 | * 0 - Success | |
5589 | * SCSI_MLQUEUE_HOST_BUSY - Block all devices served by this host temporarily. | |
5590 | **/ | |
dea3101e | 5591 | static int |
b9a7c631 | 5592 | lpfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) |
dea3101e | 5593 | { |
2e0fef85 JS |
5594 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
5595 | struct lpfc_hba *phba = vport->phba; | |
1ba981fd | 5596 | struct lpfc_rport_data *rdata; |
1c6f4ef5 | 5597 | struct lpfc_nodelist *ndlp; |
c490850a | 5598 | struct lpfc_io_buf *lpfc_cmd; |
19a7b4ae | 5599 | struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); |
4c47efc1 | 5600 | int err, idx; |
66b4d63b | 5601 | u8 *uuid = NULL; |
37e38409 | 5602 | uint64_t start; |
2fcbc569 | 5603 | |
02243836 | 5604 | start = ktime_get_ns(); |
1ba981fd | 5605 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
b0e83012 JS |
5606 | |
5607 | /* sanity check on references */ | |
5608 | if (unlikely(!rdata) || unlikely(!rport)) | |
5609 | goto out_fail_command; | |
5610 | ||
19a7b4ae JSEC |
5611 | err = fc_remote_port_chkready(rport); |
5612 | if (err) { | |
5613 | cmnd->result = err; | |
dea3101e JB |
5614 | goto out_fail_command; |
5615 | } | |
1c6f4ef5 | 5616 | ndlp = rdata->pnode; |
dea3101e | 5617 | |
bf08611b | 5618 | if ((scsi_get_prot_op(cmnd) != SCSI_PROT_NORMAL) && |
acd6859b | 5619 | (!(phba->sli3_options & LPFC_SLI3_BG_ENABLED))) { |
e2a0a9d6 | 5620 | |
372c187b | 5621 | lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
6a9c52cf JS |
5622 | "9058 BLKGRD: ERROR: rcvd protected cmd:%02x" |
5623 | " op:%02x str=%s without registering for" | |
5624 | " BlockGuard - Rejecting command\n", | |
e2a0a9d6 JS |
5625 | cmnd->cmnd[0], scsi_get_prot_op(cmnd), |
5626 | dif_op_str[scsi_get_prot_op(cmnd)]); | |
5627 | goto out_fail_command; | |
5628 | } | |
5629 | ||
dea3101e | 5630 | /* |
19a7b4ae JSEC |
5631 | * Catch race where our node has transitioned, but the |
5632 | * transport is still transitioning. | |
dea3101e | 5633 | */ |
307e3380 | 5634 | if (!ndlp) |
02243836 JS |
5635 | goto out_tgt_busy1; |
5636 | ||
5637 | /* Check if IO qualifies for CMF */ | |
5638 | if (phba->cmf_active_mode != LPFC_CFG_OFF && | |
5639 | cmnd->sc_data_direction == DMA_FROM_DEVICE && | |
5640 | (scsi_sg_count(cmnd))) { | |
5641 | /* Latency start time saved in rx_cmd_start later in routine */ | |
5642 | err = lpfc_update_cmf_cmd(phba, scsi_bufflen(cmnd)); | |
5643 | if (err) | |
5644 | goto out_tgt_busy1; | |
5645 | } | |
5646 | ||
2a5b7d62 JS |
5647 | if (lpfc_ndlp_check_qdepth(phba, ndlp)) { |
5648 | if (atomic_read(&ndlp->cmd_pending) >= ndlp->cmd_qdepth) { | |
5649 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP_ERROR, | |
5650 | "3377 Target Queue Full, scsi Id:%d " | |
5651 | "Qdepth:%d Pending command:%d" | |
5652 | " WWNN:%02x:%02x:%02x:%02x:" | |
5653 | "%02x:%02x:%02x:%02x, " | |
5654 | " WWPN:%02x:%02x:%02x:%02x:" | |
5655 | "%02x:%02x:%02x:%02x", | |
5656 | ndlp->nlp_sid, ndlp->cmd_qdepth, | |
5657 | atomic_read(&ndlp->cmd_pending), | |
5658 | ndlp->nlp_nodename.u.wwn[0], | |
5659 | ndlp->nlp_nodename.u.wwn[1], | |
5660 | ndlp->nlp_nodename.u.wwn[2], | |
5661 | ndlp->nlp_nodename.u.wwn[3], | |
5662 | ndlp->nlp_nodename.u.wwn[4], | |
5663 | ndlp->nlp_nodename.u.wwn[5], | |
5664 | ndlp->nlp_nodename.u.wwn[6], | |
5665 | ndlp->nlp_nodename.u.wwn[7], | |
5666 | ndlp->nlp_portname.u.wwn[0], | |
5667 | ndlp->nlp_portname.u.wwn[1], | |
5668 | ndlp->nlp_portname.u.wwn[2], | |
5669 | ndlp->nlp_portname.u.wwn[3], | |
5670 | ndlp->nlp_portname.u.wwn[4], | |
5671 | ndlp->nlp_portname.u.wwn[5], | |
5672 | ndlp->nlp_portname.u.wwn[6], | |
5673 | ndlp->nlp_portname.u.wwn[7]); | |
02243836 | 5674 | goto out_tgt_busy2; |
2a5b7d62 | 5675 | } |
64bf0099 | 5676 | } |
f91bc594 | 5677 | |
ace44e48 | 5678 | lpfc_cmd = lpfc_get_scsi_buf(phba, ndlp, cmnd); |
dea3101e | 5679 | if (lpfc_cmd == NULL) { |
eaf15d5b | 5680 | lpfc_rampdown_queue_depth(phba); |
92d7f7b0 | 5681 | |
895427bd | 5682 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP_ERROR, |
e8b62011 JS |
5683 | "0707 driver's buffer pool is empty, " |
5684 | "IO busied\n"); | |
dea3101e JB |
5685 | goto out_host_busy; |
5686 | } | |
02243836 | 5687 | lpfc_cmd->rx_cmd_start = start; |
dea3101e JB |
5688 | |
5689 | /* | |
5690 | * Store the midlayer's command structure for the completion phase | |
5691 | * and complete the command initialization. | |
5692 | */ | |
5693 | lpfc_cmd->pCmd = cmnd; | |
5694 | lpfc_cmd->rdata = rdata; | |
2a5b7d62 | 5695 | lpfc_cmd->ndlp = ndlp; |
da255e2e | 5696 | lpfc_cmd->cur_iocbq.iocb_cmpl = NULL; |
dea3101e | 5697 | cmnd->host_scribble = (unsigned char *)lpfc_cmd; |
dea3101e | 5698 | |
da255e2e JS |
5699 | err = lpfc_scsi_prep_cmnd(vport, lpfc_cmd, ndlp); |
5700 | if (err) | |
5701 | goto out_host_busy_release_buf; | |
5702 | ||
e2a0a9d6 | 5703 | if (scsi_get_prot_op(cmnd) != SCSI_PROT_NORMAL) { |
6a9c52cf | 5704 | if (vport->phba->cfg_enable_bg) { |
737d4248 JS |
5705 | lpfc_printf_vlog(vport, |
5706 | KERN_INFO, LOG_SCSI_CMD, | |
2613470a | 5707 | "9033 BLKGRD: rcvd %s cmd:x%x " |
68a6a66c | 5708 | "reftag x%x cnt %u pt %x\n", |
2613470a JS |
5709 | dif_op_str[scsi_get_prot_op(cmnd)], |
5710 | cmnd->cmnd[0], | |
125c12f7 MP |
5711 | scsi_prot_ref_tag(cmnd), |
5712 | scsi_logical_block_count(cmnd), | |
2613470a | 5713 | (cmnd->cmnd[1]>>5)); |
6a9c52cf | 5714 | } |
e2a0a9d6 JS |
5715 | err = lpfc_bg_scsi_prep_dma_buf(phba, lpfc_cmd); |
5716 | } else { | |
6a9c52cf | 5717 | if (vport->phba->cfg_enable_bg) { |
737d4248 JS |
5718 | lpfc_printf_vlog(vport, |
5719 | KERN_INFO, LOG_SCSI_CMD, | |
2613470a | 5720 | "9038 BLKGRD: rcvd PROT_NORMAL cmd: " |
68a6a66c | 5721 | "x%x reftag x%x cnt %u pt %x\n", |
2613470a | 5722 | cmnd->cmnd[0], |
125c12f7 MP |
5723 | scsi_prot_ref_tag(cmnd), |
5724 | scsi_logical_block_count(cmnd), | |
2613470a | 5725 | (cmnd->cmnd[1]>>5)); |
6a9c52cf | 5726 | } |
e2a0a9d6 JS |
5727 | err = lpfc_scsi_prep_dma_buf(phba, lpfc_cmd); |
5728 | } | |
5729 | ||
22770cba JS |
5730 | if (unlikely(err)) { |
5731 | if (err == 2) { | |
5732 | cmnd->result = DID_ERROR << 16; | |
5733 | goto out_fail_command_release_buf; | |
5734 | } | |
dea3101e | 5735 | goto out_host_busy_free_buf; |
5e0e2318 | 5736 | } |
dea3101e | 5737 | |
dea3101e | 5738 | |
33c79741 GS |
5739 | /* check the necessary and sufficient condition to support VMID */ |
5740 | if (lpfc_is_vmid_enabled(phba) && | |
5741 | (ndlp->vmid_support || | |
5742 | phba->pport->vmid_priority_tagging == | |
5743 | LPFC_VMID_PRIO_TAG_ALL_TARGETS)) { | |
5744 | /* is the I/O generated by a VM, get the associated virtual */ | |
5745 | /* entity id */ | |
5746 | uuid = lpfc_is_command_vm_io(cmnd); | |
5747 | ||
5748 | if (uuid) { | |
5749 | err = lpfc_vmid_get_appid(vport, uuid, cmnd, | |
5750 | (union lpfc_vmid_io_tag *) | |
5751 | &lpfc_cmd->cur_iocbq.vmid_tag); | |
5752 | if (!err) | |
5753 | lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_IO_VMID; | |
5754 | } | |
5755 | } | |
5756 | ||
5757 | atomic_inc(&ndlp->cmd_pending); | |
6a828b0f | 5758 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
840eda96 JS |
5759 | if (unlikely(phba->hdwqstat_on & LPFC_CHECK_SCSI_IO)) |
5760 | this_cpu_inc(phba->sli4_hba.c_stat->xmt_io); | |
6a828b0f | 5761 | #endif |
47ff4c51 JS |
5762 | /* Issue I/O to adapter */ |
5763 | err = lpfc_sli_issue_fcp_io(phba, LPFC_FCP_RING, | |
5764 | &lpfc_cmd->cur_iocbq, | |
5765 | SLI_IOCB_RET_IOCB); | |
2fcbc569 JS |
5766 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
5767 | if (start) { | |
5768 | lpfc_cmd->ts_cmd_start = start; | |
5769 | lpfc_cmd->ts_last_cmd = phba->ktime_last_cmd; | |
5770 | lpfc_cmd->ts_cmd_wqput = ktime_get_ns(); | |
5771 | } else { | |
5772 | lpfc_cmd->ts_cmd_start = 0; | |
5773 | } | |
5774 | #endif | |
eaf15d5b | 5775 | if (err) { |
76f96b6d | 5776 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, |
da255e2e JS |
5777 | "3376 FCP could not issue IOCB err %x " |
5778 | "FCP cmd x%x <%d/%llu> " | |
5779 | "sid: x%x did: x%x oxid: x%x " | |
5780 | "Data: x%x x%x x%x x%x\n", | |
5781 | err, cmnd->cmnd[0], | |
5782 | cmnd->device ? cmnd->device->id : 0xffff, | |
5783 | cmnd->device ? cmnd->device->lun : (u64)-1, | |
5784 | vport->fc_myDID, ndlp->nlp_DID, | |
5785 | phba->sli_rev == LPFC_SLI_REV4 ? | |
5786 | lpfc_cmd->cur_iocbq.sli4_xritag : 0xffff, | |
5787 | phba->sli_rev == LPFC_SLI_REV4 ? | |
5788 | phba->sli4_hba.rpi_ids[ndlp->nlp_rpi] : | |
5789 | lpfc_cmd->cur_iocbq.iocb.ulpContext, | |
5790 | lpfc_cmd->cur_iocbq.iotag, | |
5791 | phba->sli_rev == LPFC_SLI_REV4 ? | |
5792 | bf_get(wqe_tmo, | |
5793 | &lpfc_cmd->cur_iocbq.wqe.generic.wqe_com) : | |
5794 | lpfc_cmd->cur_iocbq.iocb.ulpTimeout, | |
4221c8a4 | 5795 | (uint32_t)(scsi_cmd_to_rq(cmnd)->timeout / 1000)); |
76f96b6d | 5796 | |
dea3101e | 5797 | goto out_host_busy_free_buf; |
eaf15d5b | 5798 | } |
da255e2e | 5799 | |
875fbdfe | 5800 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { |
45ed1190 | 5801 | lpfc_sli_handle_fast_ring_event(phba, |
895427bd | 5802 | &phba->sli.sli3_ring[LPFC_FCP_RING], HA_R0RE_REQ); |
45ed1190 | 5803 | |
875fbdfe JSEC |
5804 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
5805 | lpfc_poll_rearm_timer(phba); | |
5806 | } | |
5807 | ||
c490850a JS |
5808 | if (phba->cfg_xri_rebalancing) |
5809 | lpfc_keep_pvt_pool_above_lowwm(phba, lpfc_cmd->hdwq_no); | |
5810 | ||
dea3101e JB |
5811 | return 0; |
5812 | ||
5813 | out_host_busy_free_buf: | |
1fbf9742 | 5814 | idx = lpfc_cmd->hdwq_no; |
bcf4dbfa | 5815 | lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd); |
4c47efc1 JS |
5816 | if (phba->sli4_hba.hdwq) { |
5817 | switch (lpfc_cmd->fcp_cmnd->fcpCntl3) { | |
5818 | case WRITE_DATA: | |
5819 | phba->sli4_hba.hdwq[idx].scsi_cstat.output_requests--; | |
5820 | break; | |
5821 | case READ_DATA: | |
5822 | phba->sli4_hba.hdwq[idx].scsi_cstat.input_requests--; | |
5823 | break; | |
5824 | default: | |
5825 | phba->sli4_hba.hdwq[idx].scsi_cstat.control_requests--; | |
5826 | } | |
5827 | } | |
da255e2e | 5828 | out_host_busy_release_buf: |
0bd4ca25 | 5829 | lpfc_release_scsi_buf(phba, lpfc_cmd); |
dea3101e | 5830 | out_host_busy: |
02243836 JS |
5831 | lpfc_update_cmf_cmpl(phba, LPFC_CGN_NOT_SENT, scsi_bufflen(cmnd), |
5832 | shost); | |
dea3101e JB |
5833 | return SCSI_MLQUEUE_HOST_BUSY; |
5834 | ||
02243836 JS |
5835 | out_tgt_busy2: |
5836 | lpfc_update_cmf_cmpl(phba, LPFC_CGN_NOT_SENT, scsi_bufflen(cmnd), | |
5837 | shost); | |
5838 | out_tgt_busy1: | |
3496343d MC |
5839 | return SCSI_MLQUEUE_TARGET_BUSY; |
5840 | ||
5e0e2318 JS |
5841 | out_fail_command_release_buf: |
5842 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
02243836 JS |
5843 | lpfc_update_cmf_cmpl(phba, LPFC_CGN_NOT_SENT, scsi_bufflen(cmnd), |
5844 | shost); | |
5e0e2318 | 5845 | |
dea3101e | 5846 | out_fail_command: |
b9a7c631 | 5847 | cmnd->scsi_done(cmnd); |
dea3101e JB |
5848 | return 0; |
5849 | } | |
5850 | ||
5e633302 GS |
5851 | /* |
5852 | * lpfc_vmid_vport_cleanup - cleans up the resources associated with a vport | |
5853 | * @vport: The virtual port for which this call is being executed. | |
5854 | */ | |
5855 | void lpfc_vmid_vport_cleanup(struct lpfc_vport *vport) | |
5856 | { | |
5857 | u32 bucket; | |
5858 | struct lpfc_vmid *cur; | |
5859 | ||
5860 | if (vport->port_type == LPFC_PHYSICAL_PORT) | |
5861 | del_timer_sync(&vport->phba->inactive_vmid_poll); | |
5862 | ||
5863 | kfree(vport->qfpa_res); | |
5864 | kfree(vport->vmid_priority.vmid_range); | |
5865 | kfree(vport->vmid); | |
5866 | ||
5867 | if (!hash_empty(vport->hash_table)) | |
5868 | hash_for_each(vport->hash_table, bucket, cur, hnode) | |
5869 | hash_del(&cur->hnode); | |
5870 | ||
5871 | vport->qfpa_res = NULL; | |
5872 | vport->vmid_priority.vmid_range = NULL; | |
5873 | vport->vmid = NULL; | |
5874 | vport->cur_vmid_cnt = 0; | |
5875 | } | |
f281233d | 5876 | |
9bad7671 | 5877 | /** |
3621a710 | 5878 | * lpfc_abort_handler - scsi_host_template eh_abort_handler entry point |
9bad7671 JS |
5879 | * @cmnd: Pointer to scsi_cmnd data structure. |
5880 | * | |
5881 | * This routine aborts @cmnd pending in base driver. | |
5882 | * | |
5883 | * Return code : | |
5884 | * 0x2003 - Error | |
5885 | * 0x2002 - Success | |
5886 | **/ | |
dea3101e | 5887 | static int |
63c59c3b | 5888 | lpfc_abort_handler(struct scsi_cmnd *cmnd) |
dea3101e | 5889 | { |
2e0fef85 JS |
5890 | struct Scsi_Host *shost = cmnd->device->host; |
5891 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
5892 | struct lpfc_hba *phba = vport->phba; | |
0bd4ca25 | 5893 | struct lpfc_iocbq *iocb; |
c490850a | 5894 | struct lpfc_io_buf *lpfc_cmd; |
3a70730a | 5895 | int ret = SUCCESS, status = 0; |
8931c73b | 5896 | struct lpfc_sli_ring *pring_s4 = NULL; |
db7531d2 | 5897 | struct lpfc_sli_ring *pring = NULL; |
895427bd | 5898 | int ret_val; |
59c68eaa | 5899 | unsigned long flags; |
fa61a54e | 5900 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(waitq); |
dea3101e | 5901 | |
3a70730a | 5902 | status = fc_block_scsi_eh(cmnd); |
908e18e4 | 5903 | if (status != 0 && status != SUCCESS) |
3a70730a | 5904 | return status; |
4f2e66c6 | 5905 | |
c2017260 JS |
5906 | lpfc_cmd = (struct lpfc_io_buf *)cmnd->host_scribble; |
5907 | if (!lpfc_cmd) | |
5908 | return ret; | |
5909 | ||
876dd7d0 | 5910 | spin_lock_irqsave(&phba->hbalock, flags); |
4f2e66c6 | 5911 | /* driver queued commands are in process of being flushed */ |
c00f62e6 | 5912 | if (phba->hba_flag & HBA_IOQ_FLUSH) { |
4f2e66c6 JS |
5913 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
5914 | "3168 SCSI Layer abort requested I/O has been " | |
5915 | "flushed by LLD.\n"); | |
c2017260 JS |
5916 | ret = FAILED; |
5917 | goto out_unlock; | |
4f2e66c6 JS |
5918 | } |
5919 | ||
c2017260 JS |
5920 | /* Guard against IO completion being called at same time */ |
5921 | spin_lock(&lpfc_cmd->buf_lock); | |
5922 | ||
5923 | if (!lpfc_cmd->pCmd) { | |
eee8877e JS |
5924 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
5925 | "2873 SCSI Layer I/O Abort Request IO CMPL Status " | |
9cb78c16 | 5926 | "x%x ID %d LUN %llu\n", |
3a70730a | 5927 | SUCCESS, cmnd->device->id, cmnd->device->lun); |
c2017260 | 5928 | goto out_unlock_buf; |
eee8877e | 5929 | } |
dea3101e | 5930 | |
4f2e66c6 | 5931 | iocb = &lpfc_cmd->cur_iocbq; |
8931c73b | 5932 | if (phba->sli_rev == LPFC_SLI_REV4) { |
c00f62e6 | 5933 | pring_s4 = phba->sli4_hba.hdwq[iocb->hba_wqidx].io_wq->pring; |
8931c73b JS |
5934 | if (!pring_s4) { |
5935 | ret = FAILED; | |
c2017260 | 5936 | goto out_unlock_buf; |
8931c73b JS |
5937 | } |
5938 | spin_lock(&pring_s4->ring_lock); | |
5939 | } | |
4f2e66c6 JS |
5940 | /* the command is in process of being cancelled */ |
5941 | if (!(iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ)) { | |
4f2e66c6 JS |
5942 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
5943 | "3169 SCSI Layer abort requested I/O has been " | |
5944 | "cancelled by LLD.\n"); | |
c2017260 JS |
5945 | ret = FAILED; |
5946 | goto out_unlock_ring; | |
4f2e66c6 | 5947 | } |
0bd4ca25 | 5948 | /* |
c490850a | 5949 | * If pCmd field of the corresponding lpfc_io_buf structure |
0bd4ca25 JSEC |
5950 | * points to a different SCSI command, then the driver has |
5951 | * already completed this command, but the midlayer did not | |
4f2e66c6 | 5952 | * see the completion before the eh fired. Just return SUCCESS. |
0bd4ca25 | 5953 | */ |
4f2e66c6 JS |
5954 | if (lpfc_cmd->pCmd != cmnd) { |
5955 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, | |
5956 | "3170 SCSI Layer abort requested I/O has been " | |
5957 | "completed by LLD.\n"); | |
c2017260 | 5958 | goto out_unlock_ring; |
4f2e66c6 | 5959 | } |
dea3101e | 5960 | |
0bd4ca25 | 5961 | BUG_ON(iocb->context1 != lpfc_cmd); |
dea3101e | 5962 | |
ee62021a JS |
5963 | /* abort issued in recovery is still in progress */ |
5964 | if (iocb->iocb_flag & LPFC_DRIVER_ABORTED) { | |
5965 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, | |
5966 | "3389 SCSI Layer I/O Abort Request is pending\n"); | |
8931c73b JS |
5967 | if (phba->sli_rev == LPFC_SLI_REV4) |
5968 | spin_unlock(&pring_s4->ring_lock); | |
c2017260 | 5969 | spin_unlock(&lpfc_cmd->buf_lock); |
ee62021a JS |
5970 | spin_unlock_irqrestore(&phba->hbalock, flags); |
5971 | goto wait_for_cmpl; | |
5972 | } | |
5973 | ||
8931c73b | 5974 | lpfc_cmd->waitq = &waitq; |
98912dda | 5975 | if (phba->sli_rev == LPFC_SLI_REV4) { |
59c68eaa | 5976 | spin_unlock(&pring_s4->ring_lock); |
db7531d2 JS |
5977 | ret_val = lpfc_sli4_issue_abort_iotag(phba, iocb, |
5978 | lpfc_sli4_abort_fcp_cmpl); | |
98912dda | 5979 | } else { |
db7531d2 JS |
5980 | pring = &phba->sli.sli3_ring[LPFC_FCP_RING]; |
5981 | ret_val = lpfc_sli_issue_abort_iotag(phba, pring, iocb, | |
5982 | lpfc_sli_abort_fcp_cmpl); | |
98912dda | 5983 | } |
4f2e66c6 | 5984 | |
a22d73b6 JS |
5985 | /* Make sure HBA is alive */ |
5986 | lpfc_issue_hb_tmo(phba); | |
5987 | ||
db7531d2 | 5988 | if (ret_val != IOCB_SUCCESS) { |
8931c73b | 5989 | /* Indicate the IO is not being aborted by the driver. */ |
8931c73b | 5990 | lpfc_cmd->waitq = NULL; |
c2017260 | 5991 | spin_unlock(&lpfc_cmd->buf_lock); |
91a52b61 | 5992 | spin_unlock_irqrestore(&phba->hbalock, flags); |
0bd4ca25 JSEC |
5993 | ret = FAILED; |
5994 | goto out; | |
5995 | } | |
dea3101e | 5996 | |
91a52b61 | 5997 | /* no longer need the lock after this point */ |
c2017260 | 5998 | spin_unlock(&lpfc_cmd->buf_lock); |
91a52b61 | 5999 | spin_unlock_irqrestore(&phba->hbalock, flags); |
c2017260 | 6000 | |
875fbdfe | 6001 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
45ed1190 | 6002 | lpfc_sli_handle_fast_ring_event(phba, |
895427bd | 6003 | &phba->sli.sli3_ring[LPFC_FCP_RING], HA_R0RE_REQ); |
875fbdfe | 6004 | |
ee62021a | 6005 | wait_for_cmpl: |
db7531d2 JS |
6006 | /* |
6007 | * iocb_flag is set to LPFC_DRIVER_ABORTED before we wait | |
6008 | * for abort to complete. | |
6009 | */ | |
fa61a54e JS |
6010 | wait_event_timeout(waitq, |
6011 | (lpfc_cmd->pCmd != cmnd), | |
256ec0d0 | 6012 | msecs_to_jiffies(2*vport->cfg_devloss_tmo*1000)); |
ee62021a | 6013 | |
c2017260 | 6014 | spin_lock(&lpfc_cmd->buf_lock); |
dea3101e | 6015 | |
0bd4ca25 JSEC |
6016 | if (lpfc_cmd->pCmd == cmnd) { |
6017 | ret = FAILED; | |
372c187b | 6018 | lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
e8b62011 | 6019 | "0748 abort handler timed out waiting " |
4b160ae8 | 6020 | "for aborting I/O (xri:x%x) to complete: " |
9cb78c16 | 6021 | "ret %#x, ID %d, LUN %llu\n", |
247ca945 JS |
6022 | iocb->sli4_xritag, ret, |
6023 | cmnd->device->id, cmnd->device->lun); | |
dea3101e | 6024 | } |
b9e5a2d9 JS |
6025 | |
6026 | lpfc_cmd->waitq = NULL; | |
6027 | ||
c2017260 | 6028 | spin_unlock(&lpfc_cmd->buf_lock); |
4f2e66c6 | 6029 | goto out; |
dea3101e | 6030 | |
c2017260 JS |
6031 | out_unlock_ring: |
6032 | if (phba->sli_rev == LPFC_SLI_REV4) | |
6033 | spin_unlock(&pring_s4->ring_lock); | |
6034 | out_unlock_buf: | |
6035 | spin_unlock(&lpfc_cmd->buf_lock); | |
4f2e66c6 | 6036 | out_unlock: |
876dd7d0 | 6037 | spin_unlock_irqrestore(&phba->hbalock, flags); |
4f2e66c6 | 6038 | out: |
e8b62011 JS |
6039 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
6040 | "0749 SCSI Layer I/O Abort Request Status x%x ID %d " | |
9cb78c16 | 6041 | "LUN %llu\n", ret, cmnd->device->id, |
5cd049a5 | 6042 | cmnd->device->lun); |
63c59c3b | 6043 | return ret; |
8fa728a2 JG |
6044 | } |
6045 | ||
bbb9d180 JS |
6046 | static char * |
6047 | lpfc_taskmgmt_name(uint8_t task_mgmt_cmd) | |
6048 | { | |
6049 | switch (task_mgmt_cmd) { | |
6050 | case FCP_ABORT_TASK_SET: | |
6051 | return "ABORT_TASK_SET"; | |
6052 | case FCP_CLEAR_TASK_SET: | |
6053 | return "FCP_CLEAR_TASK_SET"; | |
6054 | case FCP_BUS_RESET: | |
6055 | return "FCP_BUS_RESET"; | |
6056 | case FCP_LUN_RESET: | |
6057 | return "FCP_LUN_RESET"; | |
6058 | case FCP_TARGET_RESET: | |
6059 | return "FCP_TARGET_RESET"; | |
6060 | case FCP_CLEAR_ACA: | |
6061 | return "FCP_CLEAR_ACA"; | |
6062 | case FCP_TERMINATE_TASK: | |
6063 | return "FCP_TERMINATE_TASK"; | |
6064 | default: | |
6065 | return "unknown"; | |
6066 | } | |
6067 | } | |
6068 | ||
53151bbb JS |
6069 | |
6070 | /** | |
6071 | * lpfc_check_fcp_rsp - check the returned fcp_rsp to see if task failed | |
6072 | * @vport: The virtual port for which this call is being executed. | |
c490850a | 6073 | * @lpfc_cmd: Pointer to lpfc_io_buf data structure. |
53151bbb JS |
6074 | * |
6075 | * This routine checks the FCP RSP INFO to see if the tsk mgmt command succeded | |
6076 | * | |
6077 | * Return code : | |
6078 | * 0x2003 - Error | |
6079 | * 0x2002 - Success | |
6080 | **/ | |
6081 | static int | |
c490850a | 6082 | lpfc_check_fcp_rsp(struct lpfc_vport *vport, struct lpfc_io_buf *lpfc_cmd) |
53151bbb JS |
6083 | { |
6084 | struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp; | |
6085 | uint32_t rsp_info; | |
6086 | uint32_t rsp_len; | |
6087 | uint8_t rsp_info_code; | |
6088 | int ret = FAILED; | |
6089 | ||
6090 | ||
6091 | if (fcprsp == NULL) | |
6092 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
6093 | "0703 fcp_rsp is missing\n"); | |
6094 | else { | |
6095 | rsp_info = fcprsp->rspStatus2; | |
6096 | rsp_len = be32_to_cpu(fcprsp->rspRspLen); | |
6097 | rsp_info_code = fcprsp->rspInfo3; | |
6098 | ||
6099 | ||
6100 | lpfc_printf_vlog(vport, KERN_INFO, | |
6101 | LOG_FCP, | |
6102 | "0706 fcp_rsp valid 0x%x," | |
6103 | " rsp len=%d code 0x%x\n", | |
6104 | rsp_info, | |
6105 | rsp_len, rsp_info_code); | |
6106 | ||
996a02ae JS |
6107 | /* If FCP_RSP_LEN_VALID bit is one, then the FCP_RSP_LEN |
6108 | * field specifies the number of valid bytes of FCP_RSP_INFO. | |
6109 | * The FCP_RSP_LEN field shall be set to 0x04 or 0x08 | |
6110 | */ | |
6111 | if ((fcprsp->rspStatus2 & RSP_LEN_VALID) && | |
6112 | ((rsp_len == 8) || (rsp_len == 4))) { | |
53151bbb JS |
6113 | switch (rsp_info_code) { |
6114 | case RSP_NO_FAILURE: | |
6115 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
6116 | "0715 Task Mgmt No Failure\n"); | |
6117 | ret = SUCCESS; | |
6118 | break; | |
6119 | case RSP_TM_NOT_SUPPORTED: /* TM rejected */ | |
6120 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
6121 | "0716 Task Mgmt Target " | |
6122 | "reject\n"); | |
6123 | break; | |
6124 | case RSP_TM_NOT_COMPLETED: /* TM failed */ | |
6125 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
6126 | "0717 Task Mgmt Target " | |
6127 | "failed TM\n"); | |
6128 | break; | |
6129 | case RSP_TM_INVALID_LU: /* TM to invalid LU! */ | |
6130 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
6131 | "0718 Task Mgmt to invalid " | |
6132 | "LUN\n"); | |
6133 | break; | |
6134 | } | |
6135 | } | |
6136 | } | |
6137 | return ret; | |
6138 | } | |
6139 | ||
6140 | ||
9bad7671 | 6141 | /** |
bbb9d180 JS |
6142 | * lpfc_send_taskmgmt - Generic SCSI Task Mgmt Handler |
6143 | * @vport: The virtual port for which this call is being executed. | |
eceee00e | 6144 | * @cmnd: Pointer to scsi_cmnd data structure. |
bbb9d180 JS |
6145 | * @tgt_id: Target ID of remote device. |
6146 | * @lun_id: Lun number for the TMF | |
6147 | * @task_mgmt_cmd: type of TMF to send | |
9bad7671 | 6148 | * |
bbb9d180 JS |
6149 | * This routine builds and sends a TMF (SCSI Task Mgmt Function) to |
6150 | * a remote port. | |
9bad7671 | 6151 | * |
bbb9d180 JS |
6152 | * Return Code: |
6153 | * 0x2003 - Error | |
6154 | * 0x2002 - Success. | |
9bad7671 | 6155 | **/ |
dea3101e | 6156 | static int |
eed695d7 JS |
6157 | lpfc_send_taskmgmt(struct lpfc_vport *vport, struct scsi_cmnd *cmnd, |
6158 | unsigned int tgt_id, uint64_t lun_id, | |
6159 | uint8_t task_mgmt_cmd) | |
dea3101e | 6160 | { |
2e0fef85 | 6161 | struct lpfc_hba *phba = vport->phba; |
c490850a | 6162 | struct lpfc_io_buf *lpfc_cmd; |
bbb9d180 JS |
6163 | struct lpfc_iocbq *iocbq; |
6164 | struct lpfc_iocbq *iocbqrsp; | |
eed695d7 JS |
6165 | struct lpfc_rport_data *rdata; |
6166 | struct lpfc_nodelist *pnode; | |
bbb9d180 | 6167 | int ret; |
915caaaf | 6168 | int status; |
dea3101e | 6169 | |
eed695d7 | 6170 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
307e3380 | 6171 | if (!rdata || !rdata->pnode) |
915caaaf | 6172 | return FAILED; |
eed695d7 | 6173 | pnode = rdata->pnode; |
bbb9d180 | 6174 | |
ace44e48 | 6175 | lpfc_cmd = lpfc_get_scsi_buf(phba, pnode, NULL); |
dea3101e | 6176 | if (lpfc_cmd == NULL) |
915caaaf | 6177 | return FAILED; |
0c411222 | 6178 | lpfc_cmd->timeout = phba->cfg_task_mgmt_tmo; |
0b18ac42 | 6179 | lpfc_cmd->rdata = rdata; |
eed695d7 | 6180 | lpfc_cmd->pCmd = cmnd; |
2a5b7d62 | 6181 | lpfc_cmd->ndlp = pnode; |
dea3101e | 6182 | |
bbb9d180 JS |
6183 | status = lpfc_scsi_prep_task_mgmt_cmd(vport, lpfc_cmd, lun_id, |
6184 | task_mgmt_cmd); | |
915caaaf JS |
6185 | if (!status) { |
6186 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
6187 | return FAILED; | |
6188 | } | |
dea3101e | 6189 | |
bbb9d180 | 6190 | iocbq = &lpfc_cmd->cur_iocbq; |
0bd4ca25 | 6191 | iocbqrsp = lpfc_sli_get_iocbq(phba); |
915caaaf JS |
6192 | if (iocbqrsp == NULL) { |
6193 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
6194 | return FAILED; | |
6195 | } | |
5a0916b4 | 6196 | iocbq->iocb_cmpl = lpfc_tskmgmt_def_cmpl; |
bbb9d180 | 6197 | |
e8b62011 | 6198 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, |
9cb78c16 | 6199 | "0702 Issue %s to TGT %d LUN %llu " |
6d368e53 | 6200 | "rpi x%x nlp_flag x%x Data: x%x x%x\n", |
bbb9d180 | 6201 | lpfc_taskmgmt_name(task_mgmt_cmd), tgt_id, lun_id, |
6d368e53 JS |
6202 | pnode->nlp_rpi, pnode->nlp_flag, iocbq->sli4_xritag, |
6203 | iocbq->iocb_flag); | |
bbb9d180 | 6204 | |
3772a991 | 6205 | status = lpfc_sli_issue_iocb_wait(phba, LPFC_FCP_RING, |
915caaaf | 6206 | iocbq, iocbqrsp, lpfc_cmd->timeout); |
53151bbb JS |
6207 | if ((status != IOCB_SUCCESS) || |
6208 | (iocbqrsp->iocb.ulpStatus != IOSTAT_SUCCESS)) { | |
ae374a30 JS |
6209 | if (status != IOCB_SUCCESS || |
6210 | iocbqrsp->iocb.ulpStatus != IOSTAT_FCP_RSP_ERROR) | |
372c187b | 6211 | lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
ae374a30 JS |
6212 | "0727 TMF %s to TGT %d LUN %llu " |
6213 | "failed (%d, %d) iocb_flag x%x\n", | |
6214 | lpfc_taskmgmt_name(task_mgmt_cmd), | |
6215 | tgt_id, lun_id, | |
6216 | iocbqrsp->iocb.ulpStatus, | |
6217 | iocbqrsp->iocb.un.ulpWord[4], | |
6218 | iocbq->iocb_flag); | |
53151bbb JS |
6219 | /* if ulpStatus != IOCB_SUCCESS, then status == IOCB_SUCCESS */ |
6220 | if (status == IOCB_SUCCESS) { | |
6221 | if (iocbqrsp->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR) | |
6222 | /* Something in the FCP_RSP was invalid. | |
6223 | * Check conditions */ | |
6224 | ret = lpfc_check_fcp_rsp(vport, lpfc_cmd); | |
6225 | else | |
6226 | ret = FAILED; | |
6227 | } else if (status == IOCB_TIMEDOUT) { | |
6228 | ret = TIMEOUT_ERROR; | |
6229 | } else { | |
6230 | ret = FAILED; | |
6231 | } | |
53151bbb | 6232 | } else |
bbb9d180 JS |
6233 | ret = SUCCESS; |
6234 | ||
6175c02a | 6235 | lpfc_sli_release_iocbq(phba, iocbqrsp); |
bbb9d180 JS |
6236 | |
6237 | if (ret != TIMEOUT_ERROR) | |
6238 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
6239 | ||
6240 | return ret; | |
6241 | } | |
6242 | ||
6243 | /** | |
6244 | * lpfc_chk_tgt_mapped - | |
6245 | * @vport: The virtual port to check on | |
6246 | * @cmnd: Pointer to scsi_cmnd data structure. | |
6247 | * | |
6248 | * This routine delays until the scsi target (aka rport) for the | |
6249 | * command exists (is present and logged in) or we declare it non-existent. | |
6250 | * | |
6251 | * Return code : | |
6252 | * 0x2003 - Error | |
6253 | * 0x2002 - Success | |
6254 | **/ | |
6255 | static int | |
6256 | lpfc_chk_tgt_mapped(struct lpfc_vport *vport, struct scsi_cmnd *cmnd) | |
6257 | { | |
1ba981fd | 6258 | struct lpfc_rport_data *rdata; |
1c6f4ef5 | 6259 | struct lpfc_nodelist *pnode; |
bbb9d180 JS |
6260 | unsigned long later; |
6261 | ||
1ba981fd | 6262 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
1c6f4ef5 JS |
6263 | if (!rdata) { |
6264 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
32350664 | 6265 | "0797 Tgt Map rport failure: rdata x%px\n", rdata); |
1c6f4ef5 JS |
6266 | return FAILED; |
6267 | } | |
6268 | pnode = rdata->pnode; | |
bbb9d180 JS |
6269 | /* |
6270 | * If target is not in a MAPPED state, delay until | |
6271 | * target is rediscovered or devloss timeout expires. | |
6272 | */ | |
6273 | later = msecs_to_jiffies(2 * vport->cfg_devloss_tmo * 1000) + jiffies; | |
6274 | while (time_after(later, jiffies)) { | |
307e3380 | 6275 | if (!pnode) |
bbb9d180 JS |
6276 | return FAILED; |
6277 | if (pnode->nlp_state == NLP_STE_MAPPED_NODE) | |
6278 | return SUCCESS; | |
6279 | schedule_timeout_uninterruptible(msecs_to_jiffies(500)); | |
1ba981fd | 6280 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
bbb9d180 JS |
6281 | if (!rdata) |
6282 | return FAILED; | |
6283 | pnode = rdata->pnode; | |
6284 | } | |
307e3380 | 6285 | if (!pnode || (pnode->nlp_state != NLP_STE_MAPPED_NODE)) |
bbb9d180 JS |
6286 | return FAILED; |
6287 | return SUCCESS; | |
6288 | } | |
6289 | ||
6290 | /** | |
6291 | * lpfc_reset_flush_io_context - | |
6292 | * @vport: The virtual port (scsi_host) for the flush context | |
6293 | * @tgt_id: If aborting by Target contect - specifies the target id | |
6294 | * @lun_id: If aborting by Lun context - specifies the lun id | |
6295 | * @context: specifies the context level to flush at. | |
6296 | * | |
6297 | * After a reset condition via TMF, we need to flush orphaned i/o | |
6298 | * contexts from the adapter. This routine aborts any contexts | |
6299 | * outstanding, then waits for their completions. The wait is | |
6300 | * bounded by devloss_tmo though. | |
6301 | * | |
6302 | * Return code : | |
6303 | * 0x2003 - Error | |
6304 | * 0x2002 - Success | |
6305 | **/ | |
6306 | static int | |
6307 | lpfc_reset_flush_io_context(struct lpfc_vport *vport, uint16_t tgt_id, | |
6308 | uint64_t lun_id, lpfc_ctx_cmd context) | |
6309 | { | |
6310 | struct lpfc_hba *phba = vport->phba; | |
6311 | unsigned long later; | |
6312 | int cnt; | |
6313 | ||
6314 | cnt = lpfc_sli_sum_iocb(vport, tgt_id, lun_id, context); | |
6175c02a | 6315 | if (cnt) |
98912dda | 6316 | lpfc_sli_abort_taskmgmt(vport, |
895427bd | 6317 | &phba->sli.sli3_ring[LPFC_FCP_RING], |
98912dda | 6318 | tgt_id, lun_id, context); |
915caaaf JS |
6319 | later = msecs_to_jiffies(2 * vport->cfg_devloss_tmo * 1000) + jiffies; |
6320 | while (time_after(later, jiffies) && cnt) { | |
6321 | schedule_timeout_uninterruptible(msecs_to_jiffies(20)); | |
bbb9d180 | 6322 | cnt = lpfc_sli_sum_iocb(vport, tgt_id, lun_id, context); |
dea3101e | 6323 | } |
dea3101e | 6324 | if (cnt) { |
372c187b | 6325 | lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
bbb9d180 JS |
6326 | "0724 I/O flush failure for context %s : cnt x%x\n", |
6327 | ((context == LPFC_CTX_LUN) ? "LUN" : | |
6328 | ((context == LPFC_CTX_TGT) ? "TGT" : | |
6329 | ((context == LPFC_CTX_HOST) ? "HOST" : "Unknown"))), | |
6330 | cnt); | |
6331 | return FAILED; | |
dea3101e | 6332 | } |
bbb9d180 JS |
6333 | return SUCCESS; |
6334 | } | |
6335 | ||
6336 | /** | |
6337 | * lpfc_device_reset_handler - scsi_host_template eh_device_reset entry point | |
6338 | * @cmnd: Pointer to scsi_cmnd data structure. | |
6339 | * | |
6340 | * This routine does a device reset by sending a LUN_RESET task management | |
6341 | * command. | |
6342 | * | |
6343 | * Return code : | |
6344 | * 0x2003 - Error | |
6345 | * 0x2002 - Success | |
6346 | **/ | |
6347 | static int | |
6348 | lpfc_device_reset_handler(struct scsi_cmnd *cmnd) | |
6349 | { | |
6350 | struct Scsi_Host *shost = cmnd->device->host; | |
6351 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
1ba981fd | 6352 | struct lpfc_rport_data *rdata; |
1c6f4ef5 | 6353 | struct lpfc_nodelist *pnode; |
bbb9d180 | 6354 | unsigned tgt_id = cmnd->device->id; |
9cb78c16 | 6355 | uint64_t lun_id = cmnd->device->lun; |
bbb9d180 | 6356 | struct lpfc_scsi_event_header scsi_event; |
53151bbb | 6357 | int status; |
da09ae48 | 6358 | u32 logit = LOG_FCP; |
bbb9d180 | 6359 | |
1ba981fd | 6360 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
ad490b6e | 6361 | if (!rdata || !rdata->pnode) { |
372c187b | 6362 | lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
32350664 | 6363 | "0798 Device Reset rdata failure: rdata x%px\n", |
ad490b6e | 6364 | rdata); |
1c6f4ef5 JS |
6365 | return FAILED; |
6366 | } | |
6367 | pnode = rdata->pnode; | |
589a52d6 | 6368 | status = fc_block_scsi_eh(cmnd); |
908e18e4 | 6369 | if (status != 0 && status != SUCCESS) |
589a52d6 | 6370 | return status; |
bbb9d180 JS |
6371 | |
6372 | status = lpfc_chk_tgt_mapped(vport, cmnd); | |
6373 | if (status == FAILED) { | |
372c187b | 6374 | lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
32350664 | 6375 | "0721 Device Reset rport failure: rdata x%px\n", rdata); |
bbb9d180 JS |
6376 | return FAILED; |
6377 | } | |
6378 | ||
6379 | scsi_event.event_type = FC_REG_SCSI_EVENT; | |
6380 | scsi_event.subcategory = LPFC_EVENT_LUNRESET; | |
6381 | scsi_event.lun = lun_id; | |
6382 | memcpy(scsi_event.wwpn, &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
6383 | memcpy(scsi_event.wwnn, &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
6384 | ||
6385 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
6386 | sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID); | |
6387 | ||
eed695d7 | 6388 | status = lpfc_send_taskmgmt(vport, cmnd, tgt_id, lun_id, |
bbb9d180 | 6389 | FCP_LUN_RESET); |
da09ae48 JS |
6390 | if (status != SUCCESS) |
6391 | logit = LOG_TRACE_EVENT; | |
bbb9d180 | 6392 | |
da09ae48 | 6393 | lpfc_printf_vlog(vport, KERN_ERR, logit, |
9cb78c16 | 6394 | "0713 SCSI layer issued Device Reset (%d, %llu) " |
bbb9d180 JS |
6395 | "return x%x\n", tgt_id, lun_id, status); |
6396 | ||
6397 | /* | |
6398 | * We have to clean up i/o as : they may be orphaned by the TMF; | |
6399 | * or if the TMF failed, they may be in an indeterminate state. | |
6400 | * So, continue on. | |
6401 | * We will report success if all the i/o aborts successfully. | |
6402 | */ | |
53151bbb JS |
6403 | if (status == SUCCESS) |
6404 | status = lpfc_reset_flush_io_context(vport, tgt_id, lun_id, | |
bbb9d180 | 6405 | LPFC_CTX_LUN); |
53151bbb JS |
6406 | |
6407 | return status; | |
bbb9d180 JS |
6408 | } |
6409 | ||
6410 | /** | |
6411 | * lpfc_target_reset_handler - scsi_host_template eh_target_reset entry point | |
6412 | * @cmnd: Pointer to scsi_cmnd data structure. | |
6413 | * | |
6414 | * This routine does a target reset by sending a TARGET_RESET task management | |
6415 | * command. | |
6416 | * | |
6417 | * Return code : | |
6418 | * 0x2003 - Error | |
6419 | * 0x2002 - Success | |
6420 | **/ | |
6421 | static int | |
6422 | lpfc_target_reset_handler(struct scsi_cmnd *cmnd) | |
6423 | { | |
6424 | struct Scsi_Host *shost = cmnd->device->host; | |
6425 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
1ba981fd | 6426 | struct lpfc_rport_data *rdata; |
1c6f4ef5 | 6427 | struct lpfc_nodelist *pnode; |
bbb9d180 | 6428 | unsigned tgt_id = cmnd->device->id; |
9cb78c16 | 6429 | uint64_t lun_id = cmnd->device->lun; |
bbb9d180 | 6430 | struct lpfc_scsi_event_header scsi_event; |
53151bbb | 6431 | int status; |
da09ae48 | 6432 | u32 logit = LOG_FCP; |
21990d3d | 6433 | u32 dev_loss_tmo = vport->cfg_devloss_tmo; |
31051249 JS |
6434 | unsigned long flags; |
6435 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(waitq); | |
bbb9d180 | 6436 | |
1ba981fd | 6437 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
bbd3d738 | 6438 | if (!rdata || !rdata->pnode) { |
372c187b | 6439 | lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
32350664 | 6440 | "0799 Target Reset rdata failure: rdata x%px\n", |
bbd3d738 | 6441 | rdata); |
1c6f4ef5 JS |
6442 | return FAILED; |
6443 | } | |
6444 | pnode = rdata->pnode; | |
589a52d6 | 6445 | status = fc_block_scsi_eh(cmnd); |
908e18e4 | 6446 | if (status != 0 && status != SUCCESS) |
589a52d6 | 6447 | return status; |
bbb9d180 JS |
6448 | |
6449 | status = lpfc_chk_tgt_mapped(vport, cmnd); | |
6450 | if (status == FAILED) { | |
372c187b | 6451 | lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
32350664 | 6452 | "0722 Target Reset rport failure: rdata x%px\n", rdata); |
63e480fd | 6453 | if (pnode) { |
31051249 | 6454 | spin_lock_irqsave(&pnode->lock, flags); |
63e480fd JS |
6455 | pnode->nlp_flag &= ~NLP_NPR_ADISC; |
6456 | pnode->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; | |
31051249 | 6457 | spin_unlock_irqrestore(&pnode->lock, flags); |
63e480fd | 6458 | } |
8c50d25c JS |
6459 | lpfc_reset_flush_io_context(vport, tgt_id, lun_id, |
6460 | LPFC_CTX_TGT); | |
6461 | return FAST_IO_FAIL; | |
bbb9d180 JS |
6462 | } |
6463 | ||
6464 | scsi_event.event_type = FC_REG_SCSI_EVENT; | |
6465 | scsi_event.subcategory = LPFC_EVENT_TGTRESET; | |
6466 | scsi_event.lun = 0; | |
6467 | memcpy(scsi_event.wwpn, &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
6468 | memcpy(scsi_event.wwnn, &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
6469 | ||
6470 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
6471 | sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID); | |
6472 | ||
eed695d7 | 6473 | status = lpfc_send_taskmgmt(vport, cmnd, tgt_id, lun_id, |
bbb9d180 | 6474 | FCP_TARGET_RESET); |
21990d3d JS |
6475 | if (status != SUCCESS) { |
6476 | logit = LOG_TRACE_EVENT; | |
6477 | ||
6478 | /* Issue LOGO, if no LOGO is outstanding */ | |
6479 | spin_lock_irqsave(&pnode->lock, flags); | |
bb1ffe9e | 6480 | if (!(pnode->save_flags & NLP_WAIT_FOR_LOGO) && |
21990d3d JS |
6481 | !pnode->logo_waitq) { |
6482 | pnode->logo_waitq = &waitq; | |
6483 | pnode->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; | |
6484 | pnode->nlp_flag |= NLP_ISSUE_LOGO; | |
bb1ffe9e | 6485 | pnode->save_flags |= NLP_WAIT_FOR_LOGO; |
21990d3d JS |
6486 | spin_unlock_irqrestore(&pnode->lock, flags); |
6487 | lpfc_unreg_rpi(vport, pnode); | |
6488 | wait_event_timeout(waitq, | |
bb1ffe9e | 6489 | (!(pnode->save_flags & |
21990d3d JS |
6490 | NLP_WAIT_FOR_LOGO)), |
6491 | msecs_to_jiffies(dev_loss_tmo * | |
6492 | 1000)); | |
6493 | ||
bb1ffe9e | 6494 | if (pnode->save_flags & NLP_WAIT_FOR_LOGO) { |
21990d3d JS |
6495 | lpfc_printf_vlog(vport, KERN_ERR, logit, |
6496 | "0725 SCSI layer TGTRST " | |
6497 | "failed & LOGO TMO (%d, %llu) " | |
6498 | "return x%x\n", | |
6499 | tgt_id, lun_id, status); | |
6500 | spin_lock_irqsave(&pnode->lock, flags); | |
bb1ffe9e | 6501 | pnode->save_flags &= ~NLP_WAIT_FOR_LOGO; |
21990d3d JS |
6502 | } else { |
6503 | spin_lock_irqsave(&pnode->lock, flags); | |
6504 | } | |
6505 | pnode->logo_waitq = NULL; | |
6506 | spin_unlock_irqrestore(&pnode->lock, flags); | |
6507 | status = SUCCESS; | |
6508 | ||
31051249 | 6509 | } else { |
21990d3d JS |
6510 | spin_unlock_irqrestore(&pnode->lock, flags); |
6511 | status = FAILED; | |
31051249 | 6512 | } |
31051249 | 6513 | } |
bbb9d180 | 6514 | |
da09ae48 | 6515 | lpfc_printf_vlog(vport, KERN_ERR, logit, |
9cb78c16 | 6516 | "0723 SCSI layer issued Target Reset (%d, %llu) " |
bbb9d180 JS |
6517 | "return x%x\n", tgt_id, lun_id, status); |
6518 | ||
6519 | /* | |
6520 | * We have to clean up i/o as : they may be orphaned by the TMF; | |
6521 | * or if the TMF failed, they may be in an indeterminate state. | |
6522 | * So, continue on. | |
6523 | * We will report success if all the i/o aborts successfully. | |
6524 | */ | |
53151bbb JS |
6525 | if (status == SUCCESS) |
6526 | status = lpfc_reset_flush_io_context(vport, tgt_id, lun_id, | |
3a70730a | 6527 | LPFC_CTX_TGT); |
53151bbb | 6528 | return status; |
dea3101e JB |
6529 | } |
6530 | ||
9bad7671 | 6531 | /** |
3621a710 | 6532 | * lpfc_bus_reset_handler - scsi_host_template eh_bus_reset_handler entry point |
9bad7671 JS |
6533 | * @cmnd: Pointer to scsi_cmnd data structure. |
6534 | * | |
bbb9d180 JS |
6535 | * This routine does target reset to all targets on @cmnd->device->host. |
6536 | * This emulates Parallel SCSI Bus Reset Semantics. | |
9bad7671 | 6537 | * |
bbb9d180 JS |
6538 | * Return code : |
6539 | * 0x2003 - Error | |
6540 | * 0x2002 - Success | |
9bad7671 | 6541 | **/ |
94d0e7b8 | 6542 | static int |
7054a606 | 6543 | lpfc_bus_reset_handler(struct scsi_cmnd *cmnd) |
dea3101e | 6544 | { |
2e0fef85 JS |
6545 | struct Scsi_Host *shost = cmnd->device->host; |
6546 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
dea3101e | 6547 | struct lpfc_nodelist *ndlp = NULL; |
ea2151b4 | 6548 | struct lpfc_scsi_event_header scsi_event; |
bbb9d180 JS |
6549 | int match; |
6550 | int ret = SUCCESS, status, i; | |
da09ae48 | 6551 | u32 logit = LOG_FCP; |
ea2151b4 JS |
6552 | |
6553 | scsi_event.event_type = FC_REG_SCSI_EVENT; | |
6554 | scsi_event.subcategory = LPFC_EVENT_BUSRESET; | |
6555 | scsi_event.lun = 0; | |
6556 | memcpy(scsi_event.wwpn, &vport->fc_portname, sizeof(struct lpfc_name)); | |
6557 | memcpy(scsi_event.wwnn, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
6558 | ||
bbb9d180 JS |
6559 | fc_host_post_vendor_event(shost, fc_get_event_number(), |
6560 | sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID); | |
dea3101e | 6561 | |
bf08611b | 6562 | status = fc_block_scsi_eh(cmnd); |
908e18e4 | 6563 | if (status != 0 && status != SUCCESS) |
bf08611b | 6564 | return status; |
bbb9d180 | 6565 | |
dea3101e JB |
6566 | /* |
6567 | * Since the driver manages a single bus device, reset all | |
6568 | * targets known to the driver. Should any target reset | |
6569 | * fail, this routine returns failure to the midlayer. | |
6570 | */ | |
e17da18e | 6571 | for (i = 0; i < LPFC_MAX_TARGET; i++) { |
685f0bf7 | 6572 | /* Search for mapped node by target ID */ |
dea3101e | 6573 | match = 0; |
2e0fef85 JS |
6574 | spin_lock_irq(shost->host_lock); |
6575 | list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { | |
307e3380 | 6576 | |
a6571c6e JS |
6577 | if (vport->phba->cfg_fcp2_no_tgt_reset && |
6578 | (ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE)) | |
6579 | continue; | |
685f0bf7 | 6580 | if (ndlp->nlp_state == NLP_STE_MAPPED_NODE && |
915caaaf | 6581 | ndlp->nlp_sid == i && |
a0f2d3ef JS |
6582 | ndlp->rport && |
6583 | ndlp->nlp_type & NLP_FCP_TARGET) { | |
dea3101e JB |
6584 | match = 1; |
6585 | break; | |
6586 | } | |
6587 | } | |
2e0fef85 | 6588 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
6589 | if (!match) |
6590 | continue; | |
bbb9d180 | 6591 | |
eed695d7 | 6592 | status = lpfc_send_taskmgmt(vport, cmnd, |
bbb9d180 JS |
6593 | i, 0, FCP_TARGET_RESET); |
6594 | ||
6595 | if (status != SUCCESS) { | |
372c187b | 6596 | lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
e8b62011 JS |
6597 | "0700 Bus Reset on target %d failed\n", |
6598 | i); | |
915caaaf | 6599 | ret = FAILED; |
dea3101e JB |
6600 | } |
6601 | } | |
6175c02a | 6602 | /* |
bbb9d180 JS |
6603 | * We have to clean up i/o as : they may be orphaned by the TMFs |
6604 | * above; or if any of the TMFs failed, they may be in an | |
6605 | * indeterminate state. | |
6606 | * We will report success if all the i/o aborts successfully. | |
6175c02a | 6607 | */ |
bbb9d180 JS |
6608 | |
6609 | status = lpfc_reset_flush_io_context(vport, 0, 0, LPFC_CTX_HOST); | |
6610 | if (status != SUCCESS) | |
0bd4ca25 | 6611 | ret = FAILED; |
da09ae48 JS |
6612 | if (ret == FAILED) |
6613 | logit = LOG_TRACE_EVENT; | |
bbb9d180 | 6614 | |
da09ae48 | 6615 | lpfc_printf_vlog(vport, KERN_ERR, logit, |
e8b62011 | 6616 | "0714 SCSI layer issued Bus Reset Data: x%x\n", ret); |
dea3101e JB |
6617 | return ret; |
6618 | } | |
6619 | ||
27b01b82 JS |
6620 | /** |
6621 | * lpfc_host_reset_handler - scsi_host_template eh_host_reset_handler entry pt | |
6622 | * @cmnd: Pointer to scsi_cmnd data structure. | |
6623 | * | |
6624 | * This routine does host reset to the adaptor port. It brings the HBA | |
6625 | * offline, performs a board restart, and then brings the board back online. | |
6626 | * The lpfc_offline calls lpfc_sli_hba_down which will abort and local | |
6627 | * reject all outstanding SCSI commands to the host and error returned | |
6628 | * back to SCSI mid-level. As this will be SCSI mid-level's last resort | |
6629 | * of error handling, it will only return error if resetting of the adapter | |
6630 | * is not successful; in all other cases, will return success. | |
6631 | * | |
6632 | * Return code : | |
6633 | * 0x2003 - Error | |
6634 | * 0x2002 - Success | |
6635 | **/ | |
6636 | static int | |
6637 | lpfc_host_reset_handler(struct scsi_cmnd *cmnd) | |
6638 | { | |
6639 | struct Scsi_Host *shost = cmnd->device->host; | |
6640 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
6641 | struct lpfc_hba *phba = vport->phba; | |
6642 | int rc, ret = SUCCESS; | |
6643 | ||
da09ae48 | 6644 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
a88dbb6a JS |
6645 | "3172 SCSI layer issued Host Reset Data:\n"); |
6646 | ||
618a5230 | 6647 | lpfc_offline_prep(phba, LPFC_MBX_WAIT); |
27b01b82 JS |
6648 | lpfc_offline(phba); |
6649 | rc = lpfc_sli_brdrestart(phba); | |
6650 | if (rc) | |
8c24a4f6 JS |
6651 | goto error; |
6652 | ||
6ec7c372 JS |
6653 | /* Wait for successful restart of adapter */ |
6654 | if (phba->sli_rev < LPFC_SLI_REV4) { | |
6655 | rc = lpfc_sli_chipset_init(phba); | |
6656 | if (rc) | |
6657 | goto error; | |
6658 | } | |
6659 | ||
a88dbb6a JS |
6660 | rc = lpfc_online(phba); |
6661 | if (rc) | |
8c24a4f6 JS |
6662 | goto error; |
6663 | ||
27b01b82 JS |
6664 | lpfc_unblock_mgmt_io(phba); |
6665 | ||
27b01b82 | 6666 | return ret; |
8c24a4f6 | 6667 | error: |
372c187b | 6668 | lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
8c24a4f6 JS |
6669 | "3323 Failed host reset\n"); |
6670 | lpfc_unblock_mgmt_io(phba); | |
6671 | return FAILED; | |
27b01b82 JS |
6672 | } |
6673 | ||
9bad7671 | 6674 | /** |
3621a710 | 6675 | * lpfc_slave_alloc - scsi_host_template slave_alloc entry point |
9bad7671 JS |
6676 | * @sdev: Pointer to scsi_device. |
6677 | * | |
6678 | * This routine populates the cmds_per_lun count + 2 scsi_bufs into this host's | |
6679 | * globally available list of scsi buffers. This routine also makes sure scsi | |
6680 | * buffer is not allocated more than HBA limit conveyed to midlayer. This list | |
6681 | * of scsi buffer exists for the lifetime of the driver. | |
6682 | * | |
6683 | * Return codes: | |
6684 | * non-0 - Error | |
6685 | * 0 - Success | |
6686 | **/ | |
dea3101e JB |
6687 | static int |
6688 | lpfc_slave_alloc(struct scsi_device *sdev) | |
6689 | { | |
2e0fef85 JS |
6690 | struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; |
6691 | struct lpfc_hba *phba = vport->phba; | |
19a7b4ae | 6692 | struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); |
3772a991 | 6693 | uint32_t total = 0; |
dea3101e | 6694 | uint32_t num_to_alloc = 0; |
3772a991 | 6695 | int num_allocated = 0; |
d7c47992 | 6696 | uint32_t sdev_cnt; |
1ba981fd JS |
6697 | struct lpfc_device_data *device_data; |
6698 | unsigned long flags; | |
6699 | struct lpfc_name target_wwpn; | |
dea3101e | 6700 | |
19a7b4ae | 6701 | if (!rport || fc_remote_port_chkready(rport)) |
dea3101e JB |
6702 | return -ENXIO; |
6703 | ||
f38fa0bb | 6704 | if (phba->cfg_fof) { |
1ba981fd JS |
6705 | |
6706 | /* | |
6707 | * Check to see if the device data structure for the lun | |
6708 | * exists. If not, create one. | |
6709 | */ | |
6710 | ||
6711 | u64_to_wwn(rport->port_name, target_wwpn.u.wwn); | |
6712 | spin_lock_irqsave(&phba->devicelock, flags); | |
6713 | device_data = __lpfc_get_device_data(phba, | |
6714 | &phba->luns, | |
6715 | &vport->fc_portname, | |
6716 | &target_wwpn, | |
6717 | sdev->lun); | |
6718 | if (!device_data) { | |
6719 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
6720 | device_data = lpfc_create_device_data(phba, | |
6721 | &vport->fc_portname, | |
6722 | &target_wwpn, | |
b5749fe1 JS |
6723 | sdev->lun, |
6724 | phba->cfg_XLanePriority, | |
6725 | true); | |
1ba981fd JS |
6726 | if (!device_data) |
6727 | return -ENOMEM; | |
6728 | spin_lock_irqsave(&phba->devicelock, flags); | |
6729 | list_add_tail(&device_data->listentry, &phba->luns); | |
6730 | } | |
6731 | device_data->rport_data = rport->dd_data; | |
6732 | device_data->available = true; | |
6733 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
6734 | sdev->hostdata = device_data; | |
6735 | } else { | |
6736 | sdev->hostdata = rport->dd_data; | |
6737 | } | |
d7c47992 | 6738 | sdev_cnt = atomic_inc_return(&phba->sdev_cnt); |
dea3101e | 6739 | |
0794d601 JS |
6740 | /* For SLI4, all IO buffers are pre-allocated */ |
6741 | if (phba->sli_rev == LPFC_SLI_REV4) | |
6742 | return 0; | |
6743 | ||
6744 | /* This code path is now ONLY for SLI3 adapters */ | |
6745 | ||
dea3101e JB |
6746 | /* |
6747 | * Populate the cmds_per_lun count scsi_bufs into this host's globally | |
6748 | * available list of scsi buffers. Don't allocate more than the | |
a784efbf JSEC |
6749 | * HBA limit conveyed to the midlayer via the host structure. The |
6750 | * formula accounts for the lun_queue_depth + error handlers + 1 | |
6751 | * extra. This list of scsi bufs exists for the lifetime of the driver. | |
dea3101e JB |
6752 | */ |
6753 | total = phba->total_scsi_bufs; | |
3de2a653 | 6754 | num_to_alloc = vport->cfg_lun_queue_depth + 2; |
92d7f7b0 | 6755 | |
d7c47992 JS |
6756 | /* If allocated buffers are enough do nothing */ |
6757 | if ((sdev_cnt * (vport->cfg_lun_queue_depth + 2)) < total) | |
6758 | return 0; | |
6759 | ||
92d7f7b0 JS |
6760 | /* Allow some exchanges to be available always to complete discovery */ |
6761 | if (total >= phba->cfg_hba_queue_depth - LPFC_DISC_IOCB_BUFF_COUNT ) { | |
e8b62011 JS |
6762 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
6763 | "0704 At limitation of %d preallocated " | |
6764 | "command buffers\n", total); | |
dea3101e | 6765 | return 0; |
92d7f7b0 JS |
6766 | /* Allow some exchanges to be available always to complete discovery */ |
6767 | } else if (total + num_to_alloc > | |
6768 | phba->cfg_hba_queue_depth - LPFC_DISC_IOCB_BUFF_COUNT ) { | |
e8b62011 JS |
6769 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
6770 | "0705 Allocation request of %d " | |
6771 | "command buffers will exceed max of %d. " | |
6772 | "Reducing allocation request to %d.\n", | |
6773 | num_to_alloc, phba->cfg_hba_queue_depth, | |
6774 | (phba->cfg_hba_queue_depth - total)); | |
dea3101e JB |
6775 | num_to_alloc = phba->cfg_hba_queue_depth - total; |
6776 | } | |
0794d601 | 6777 | num_allocated = lpfc_new_scsi_buf_s3(vport, num_to_alloc); |
3772a991 | 6778 | if (num_to_alloc != num_allocated) { |
372c187b | 6779 | lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
96f7077f JS |
6780 | "0708 Allocation request of %d " |
6781 | "command buffers did not succeed. " | |
6782 | "Allocated %d buffers.\n", | |
6783 | num_to_alloc, num_allocated); | |
dea3101e | 6784 | } |
1c6f4ef5 JS |
6785 | if (num_allocated > 0) |
6786 | phba->total_scsi_bufs += num_allocated; | |
dea3101e JB |
6787 | return 0; |
6788 | } | |
6789 | ||
9bad7671 | 6790 | /** |
3621a710 | 6791 | * lpfc_slave_configure - scsi_host_template slave_configure entry point |
9bad7671 JS |
6792 | * @sdev: Pointer to scsi_device. |
6793 | * | |
6794 | * This routine configures following items | |
6795 | * - Tag command queuing support for @sdev if supported. | |
9bad7671 JS |
6796 | * - Enable SLI polling for fcp ring if ENABLE_FCP_RING_POLLING flag is set. |
6797 | * | |
6798 | * Return codes: | |
6799 | * 0 - Success | |
6800 | **/ | |
dea3101e JB |
6801 | static int |
6802 | lpfc_slave_configure(struct scsi_device *sdev) | |
6803 | { | |
2e0fef85 JS |
6804 | struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; |
6805 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 6806 | |
db5ed4df | 6807 | scsi_change_queue_depth(sdev, vport->cfg_lun_queue_depth); |
dea3101e | 6808 | |
875fbdfe | 6809 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { |
45ed1190 | 6810 | lpfc_sli_handle_fast_ring_event(phba, |
895427bd | 6811 | &phba->sli.sli3_ring[LPFC_FCP_RING], HA_R0RE_REQ); |
875fbdfe JSEC |
6812 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
6813 | lpfc_poll_rearm_timer(phba); | |
6814 | } | |
6815 | ||
dea3101e JB |
6816 | return 0; |
6817 | } | |
6818 | ||
9bad7671 | 6819 | /** |
3621a710 | 6820 | * lpfc_slave_destroy - slave_destroy entry point of SHT data structure |
9bad7671 JS |
6821 | * @sdev: Pointer to scsi_device. |
6822 | * | |
6823 | * This routine sets @sdev hostatdata filed to null. | |
6824 | **/ | |
dea3101e JB |
6825 | static void |
6826 | lpfc_slave_destroy(struct scsi_device *sdev) | |
6827 | { | |
d7c47992 JS |
6828 | struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; |
6829 | struct lpfc_hba *phba = vport->phba; | |
1ba981fd JS |
6830 | unsigned long flags; |
6831 | struct lpfc_device_data *device_data = sdev->hostdata; | |
6832 | ||
d7c47992 | 6833 | atomic_dec(&phba->sdev_cnt); |
f38fa0bb | 6834 | if ((phba->cfg_fof) && (device_data)) { |
1ba981fd JS |
6835 | spin_lock_irqsave(&phba->devicelock, flags); |
6836 | device_data->available = false; | |
6837 | if (!device_data->oas_enabled) | |
6838 | lpfc_delete_device_data(phba, device_data); | |
6839 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
6840 | } | |
dea3101e JB |
6841 | sdev->hostdata = NULL; |
6842 | return; | |
6843 | } | |
6844 | ||
1ba981fd JS |
6845 | /** |
6846 | * lpfc_create_device_data - creates and initializes device data structure for OAS | |
eceee00e | 6847 | * @phba: Pointer to host bus adapter structure. |
1ba981fd JS |
6848 | * @vport_wwpn: Pointer to vport's wwpn information |
6849 | * @target_wwpn: Pointer to target's wwpn information | |
6850 | * @lun: Lun on target | |
eceee00e | 6851 | * @pri: Priority |
1ba981fd JS |
6852 | * @atomic_create: Flag to indicate if memory should be allocated using the |
6853 | * GFP_ATOMIC flag or not. | |
6854 | * | |
6855 | * This routine creates a device data structure which will contain identifying | |
6856 | * information for the device (host wwpn, target wwpn, lun), state of OAS, | |
6857 | * whether or not the corresponding lun is available by the system, | |
6858 | * and pointer to the rport data. | |
6859 | * | |
6860 | * Return codes: | |
6861 | * NULL - Error | |
6862 | * Pointer to lpfc_device_data - Success | |
6863 | **/ | |
6864 | struct lpfc_device_data* | |
6865 | lpfc_create_device_data(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn, | |
6866 | struct lpfc_name *target_wwpn, uint64_t lun, | |
b5749fe1 | 6867 | uint32_t pri, bool atomic_create) |
1ba981fd JS |
6868 | { |
6869 | ||
6870 | struct lpfc_device_data *lun_info; | |
6871 | int memory_flags; | |
6872 | ||
6873 | if (unlikely(!phba) || !vport_wwpn || !target_wwpn || | |
f38fa0bb | 6874 | !(phba->cfg_fof)) |
1ba981fd JS |
6875 | return NULL; |
6876 | ||
6877 | /* Attempt to create the device data to contain lun info */ | |
6878 | ||
6879 | if (atomic_create) | |
6880 | memory_flags = GFP_ATOMIC; | |
6881 | else | |
6882 | memory_flags = GFP_KERNEL; | |
6883 | lun_info = mempool_alloc(phba->device_data_mem_pool, memory_flags); | |
6884 | if (!lun_info) | |
6885 | return NULL; | |
6886 | INIT_LIST_HEAD(&lun_info->listentry); | |
6887 | lun_info->rport_data = NULL; | |
6888 | memcpy(&lun_info->device_id.vport_wwpn, vport_wwpn, | |
6889 | sizeof(struct lpfc_name)); | |
6890 | memcpy(&lun_info->device_id.target_wwpn, target_wwpn, | |
6891 | sizeof(struct lpfc_name)); | |
6892 | lun_info->device_id.lun = lun; | |
6893 | lun_info->oas_enabled = false; | |
b5749fe1 | 6894 | lun_info->priority = pri; |
1ba981fd JS |
6895 | lun_info->available = false; |
6896 | return lun_info; | |
6897 | } | |
6898 | ||
6899 | /** | |
6900 | * lpfc_delete_device_data - frees a device data structure for OAS | |
eceee00e | 6901 | * @phba: Pointer to host bus adapter structure. |
1ba981fd JS |
6902 | * @lun_info: Pointer to device data structure to free. |
6903 | * | |
6904 | * This routine frees the previously allocated device data structure passed. | |
6905 | * | |
6906 | **/ | |
6907 | void | |
6908 | lpfc_delete_device_data(struct lpfc_hba *phba, | |
6909 | struct lpfc_device_data *lun_info) | |
6910 | { | |
6911 | ||
6912 | if (unlikely(!phba) || !lun_info || | |
f38fa0bb | 6913 | !(phba->cfg_fof)) |
1ba981fd JS |
6914 | return; |
6915 | ||
6916 | if (!list_empty(&lun_info->listentry)) | |
6917 | list_del(&lun_info->listentry); | |
6918 | mempool_free(lun_info, phba->device_data_mem_pool); | |
6919 | return; | |
6920 | } | |
6921 | ||
6922 | /** | |
6923 | * __lpfc_get_device_data - returns the device data for the specified lun | |
eceee00e | 6924 | * @phba: Pointer to host bus adapter structure. |
1ba981fd JS |
6925 | * @list: Point to list to search. |
6926 | * @vport_wwpn: Pointer to vport's wwpn information | |
6927 | * @target_wwpn: Pointer to target's wwpn information | |
6928 | * @lun: Lun on target | |
6929 | * | |
6930 | * This routine searches the list passed for the specified lun's device data. | |
6931 | * This function does not hold locks, it is the responsibility of the caller | |
6932 | * to ensure the proper lock is held before calling the function. | |
6933 | * | |
6934 | * Return codes: | |
6935 | * NULL - Error | |
6936 | * Pointer to lpfc_device_data - Success | |
6937 | **/ | |
6938 | struct lpfc_device_data* | |
6939 | __lpfc_get_device_data(struct lpfc_hba *phba, struct list_head *list, | |
6940 | struct lpfc_name *vport_wwpn, | |
6941 | struct lpfc_name *target_wwpn, uint64_t lun) | |
6942 | { | |
6943 | ||
6944 | struct lpfc_device_data *lun_info; | |
6945 | ||
6946 | if (unlikely(!phba) || !list || !vport_wwpn || !target_wwpn || | |
f38fa0bb | 6947 | !phba->cfg_fof) |
1ba981fd JS |
6948 | return NULL; |
6949 | ||
6950 | /* Check to see if the lun is already enabled for OAS. */ | |
6951 | ||
6952 | list_for_each_entry(lun_info, list, listentry) { | |
6953 | if ((memcmp(&lun_info->device_id.vport_wwpn, vport_wwpn, | |
6954 | sizeof(struct lpfc_name)) == 0) && | |
6955 | (memcmp(&lun_info->device_id.target_wwpn, target_wwpn, | |
6956 | sizeof(struct lpfc_name)) == 0) && | |
6957 | (lun_info->device_id.lun == lun)) | |
6958 | return lun_info; | |
6959 | } | |
6960 | ||
6961 | return NULL; | |
6962 | } | |
6963 | ||
6964 | /** | |
6965 | * lpfc_find_next_oas_lun - searches for the next oas lun | |
eceee00e | 6966 | * @phba: Pointer to host bus adapter structure. |
1ba981fd JS |
6967 | * @vport_wwpn: Pointer to vport's wwpn information |
6968 | * @target_wwpn: Pointer to target's wwpn information | |
6969 | * @starting_lun: Pointer to the lun to start searching for | |
6970 | * @found_vport_wwpn: Pointer to the found lun's vport wwpn information | |
6971 | * @found_target_wwpn: Pointer to the found lun's target wwpn information | |
6972 | * @found_lun: Pointer to the found lun. | |
6973 | * @found_lun_status: Pointer to status of the found lun. | |
eceee00e | 6974 | * @found_lun_pri: Pointer to priority of the found lun. |
1ba981fd JS |
6975 | * |
6976 | * This routine searches the luns list for the specified lun | |
6977 | * or the first lun for the vport/target. If the vport wwpn contains | |
6978 | * a zero value then a specific vport is not specified. In this case | |
6979 | * any vport which contains the lun will be considered a match. If the | |
6980 | * target wwpn contains a zero value then a specific target is not specified. | |
6981 | * In this case any target which contains the lun will be considered a | |
6982 | * match. If the lun is found, the lun, vport wwpn, target wwpn and lun status | |
6983 | * are returned. The function will also return the next lun if available. | |
6984 | * If the next lun is not found, starting_lun parameter will be set to | |
6985 | * NO_MORE_OAS_LUN. | |
6986 | * | |
6987 | * Return codes: | |
6988 | * non-0 - Error | |
6989 | * 0 - Success | |
6990 | **/ | |
6991 | bool | |
6992 | lpfc_find_next_oas_lun(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn, | |
6993 | struct lpfc_name *target_wwpn, uint64_t *starting_lun, | |
6994 | struct lpfc_name *found_vport_wwpn, | |
6995 | struct lpfc_name *found_target_wwpn, | |
6996 | uint64_t *found_lun, | |
b5749fe1 JS |
6997 | uint32_t *found_lun_status, |
6998 | uint32_t *found_lun_pri) | |
1ba981fd JS |
6999 | { |
7000 | ||
7001 | unsigned long flags; | |
7002 | struct lpfc_device_data *lun_info; | |
7003 | struct lpfc_device_id *device_id; | |
7004 | uint64_t lun; | |
7005 | bool found = false; | |
7006 | ||
7007 | if (unlikely(!phba) || !vport_wwpn || !target_wwpn || | |
7008 | !starting_lun || !found_vport_wwpn || | |
7009 | !found_target_wwpn || !found_lun || !found_lun_status || | |
7010 | (*starting_lun == NO_MORE_OAS_LUN) || | |
f38fa0bb | 7011 | !phba->cfg_fof) |
1ba981fd JS |
7012 | return false; |
7013 | ||
7014 | lun = *starting_lun; | |
7015 | *found_lun = NO_MORE_OAS_LUN; | |
7016 | *starting_lun = NO_MORE_OAS_LUN; | |
7017 | ||
7018 | /* Search for lun or the lun closet in value */ | |
7019 | ||
7020 | spin_lock_irqsave(&phba->devicelock, flags); | |
7021 | list_for_each_entry(lun_info, &phba->luns, listentry) { | |
7022 | if (((wwn_to_u64(vport_wwpn->u.wwn) == 0) || | |
7023 | (memcmp(&lun_info->device_id.vport_wwpn, vport_wwpn, | |
7024 | sizeof(struct lpfc_name)) == 0)) && | |
7025 | ((wwn_to_u64(target_wwpn->u.wwn) == 0) || | |
7026 | (memcmp(&lun_info->device_id.target_wwpn, target_wwpn, | |
7027 | sizeof(struct lpfc_name)) == 0)) && | |
7028 | (lun_info->oas_enabled)) { | |
7029 | device_id = &lun_info->device_id; | |
7030 | if ((!found) && | |
7031 | ((lun == FIND_FIRST_OAS_LUN) || | |
7032 | (device_id->lun == lun))) { | |
7033 | *found_lun = device_id->lun; | |
7034 | memcpy(found_vport_wwpn, | |
7035 | &device_id->vport_wwpn, | |
7036 | sizeof(struct lpfc_name)); | |
7037 | memcpy(found_target_wwpn, | |
7038 | &device_id->target_wwpn, | |
7039 | sizeof(struct lpfc_name)); | |
7040 | if (lun_info->available) | |
7041 | *found_lun_status = | |
7042 | OAS_LUN_STATUS_EXISTS; | |
7043 | else | |
7044 | *found_lun_status = 0; | |
b5749fe1 | 7045 | *found_lun_pri = lun_info->priority; |
1ba981fd JS |
7046 | if (phba->cfg_oas_flags & OAS_FIND_ANY_VPORT) |
7047 | memset(vport_wwpn, 0x0, | |
7048 | sizeof(struct lpfc_name)); | |
7049 | if (phba->cfg_oas_flags & OAS_FIND_ANY_TARGET) | |
7050 | memset(target_wwpn, 0x0, | |
7051 | sizeof(struct lpfc_name)); | |
7052 | found = true; | |
7053 | } else if (found) { | |
7054 | *starting_lun = device_id->lun; | |
7055 | memcpy(vport_wwpn, &device_id->vport_wwpn, | |
7056 | sizeof(struct lpfc_name)); | |
7057 | memcpy(target_wwpn, &device_id->target_wwpn, | |
7058 | sizeof(struct lpfc_name)); | |
7059 | break; | |
7060 | } | |
7061 | } | |
7062 | } | |
7063 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
7064 | return found; | |
7065 | } | |
7066 | ||
7067 | /** | |
7068 | * lpfc_enable_oas_lun - enables a lun for OAS operations | |
eceee00e | 7069 | * @phba: Pointer to host bus adapter structure. |
1ba981fd JS |
7070 | * @vport_wwpn: Pointer to vport's wwpn information |
7071 | * @target_wwpn: Pointer to target's wwpn information | |
7072 | * @lun: Lun | |
eceee00e | 7073 | * @pri: Priority |
1ba981fd JS |
7074 | * |
7075 | * This routine enables a lun for oas operations. The routines does so by | |
7076 | * doing the following : | |
7077 | * | |
7078 | * 1) Checks to see if the device data for the lun has been created. | |
7079 | * 2) If found, sets the OAS enabled flag if not set and returns. | |
7080 | * 3) Otherwise, creates a device data structure. | |
7081 | * 4) If successfully created, indicates the device data is for an OAS lun, | |
7082 | * indicates the lun is not available and add to the list of luns. | |
7083 | * | |
7084 | * Return codes: | |
7085 | * false - Error | |
7086 | * true - Success | |
7087 | **/ | |
7088 | bool | |
7089 | lpfc_enable_oas_lun(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn, | |
c92c841c | 7090 | struct lpfc_name *target_wwpn, uint64_t lun, uint8_t pri) |
1ba981fd JS |
7091 | { |
7092 | ||
7093 | struct lpfc_device_data *lun_info; | |
7094 | unsigned long flags; | |
7095 | ||
7096 | if (unlikely(!phba) || !vport_wwpn || !target_wwpn || | |
f38fa0bb | 7097 | !phba->cfg_fof) |
1ba981fd JS |
7098 | return false; |
7099 | ||
7100 | spin_lock_irqsave(&phba->devicelock, flags); | |
7101 | ||
7102 | /* Check to see if the device data for the lun has been created */ | |
7103 | lun_info = __lpfc_get_device_data(phba, &phba->luns, vport_wwpn, | |
7104 | target_wwpn, lun); | |
7105 | if (lun_info) { | |
7106 | if (!lun_info->oas_enabled) | |
7107 | lun_info->oas_enabled = true; | |
b5749fe1 | 7108 | lun_info->priority = pri; |
1ba981fd JS |
7109 | spin_unlock_irqrestore(&phba->devicelock, flags); |
7110 | return true; | |
7111 | } | |
7112 | ||
7113 | /* Create an lun info structure and add to list of luns */ | |
7114 | lun_info = lpfc_create_device_data(phba, vport_wwpn, target_wwpn, lun, | |
2d71dc8e | 7115 | pri, true); |
1ba981fd JS |
7116 | if (lun_info) { |
7117 | lun_info->oas_enabled = true; | |
c92c841c | 7118 | lun_info->priority = pri; |
1ba981fd JS |
7119 | lun_info->available = false; |
7120 | list_add_tail(&lun_info->listentry, &phba->luns); | |
7121 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
7122 | return true; | |
7123 | } | |
7124 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
7125 | return false; | |
7126 | } | |
7127 | ||
7128 | /** | |
7129 | * lpfc_disable_oas_lun - disables a lun for OAS operations | |
eceee00e | 7130 | * @phba: Pointer to host bus adapter structure. |
1ba981fd JS |
7131 | * @vport_wwpn: Pointer to vport's wwpn information |
7132 | * @target_wwpn: Pointer to target's wwpn information | |
7133 | * @lun: Lun | |
eceee00e | 7134 | * @pri: Priority |
1ba981fd JS |
7135 | * |
7136 | * This routine disables a lun for oas operations. The routines does so by | |
7137 | * doing the following : | |
7138 | * | |
7139 | * 1) Checks to see if the device data for the lun is created. | |
7140 | * 2) If present, clears the flag indicating this lun is for OAS. | |
7141 | * 3) If the lun is not available by the system, the device data is | |
7142 | * freed. | |
7143 | * | |
7144 | * Return codes: | |
7145 | * false - Error | |
7146 | * true - Success | |
7147 | **/ | |
7148 | bool | |
7149 | lpfc_disable_oas_lun(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn, | |
b5749fe1 | 7150 | struct lpfc_name *target_wwpn, uint64_t lun, uint8_t pri) |
1ba981fd JS |
7151 | { |
7152 | ||
7153 | struct lpfc_device_data *lun_info; | |
7154 | unsigned long flags; | |
7155 | ||
7156 | if (unlikely(!phba) || !vport_wwpn || !target_wwpn || | |
f38fa0bb | 7157 | !phba->cfg_fof) |
1ba981fd JS |
7158 | return false; |
7159 | ||
7160 | spin_lock_irqsave(&phba->devicelock, flags); | |
7161 | ||
7162 | /* Check to see if the lun is available. */ | |
7163 | lun_info = __lpfc_get_device_data(phba, | |
7164 | &phba->luns, vport_wwpn, | |
7165 | target_wwpn, lun); | |
7166 | if (lun_info) { | |
7167 | lun_info->oas_enabled = false; | |
b5749fe1 | 7168 | lun_info->priority = pri; |
1ba981fd JS |
7169 | if (!lun_info->available) |
7170 | lpfc_delete_device_data(phba, lun_info); | |
7171 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
7172 | return true; | |
7173 | } | |
7174 | ||
7175 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
7176 | return false; | |
7177 | } | |
92d7f7b0 | 7178 | |
895427bd JS |
7179 | static int |
7180 | lpfc_no_command(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) | |
7181 | { | |
7182 | return SCSI_MLQUEUE_HOST_BUSY; | |
7183 | } | |
7184 | ||
7185 | static int | |
7186 | lpfc_no_handler(struct scsi_cmnd *cmnd) | |
7187 | { | |
7188 | return FAILED; | |
7189 | } | |
7190 | ||
7191 | static int | |
7192 | lpfc_no_slave(struct scsi_device *sdev) | |
7193 | { | |
7194 | return -ENODEV; | |
7195 | } | |
7196 | ||
7197 | struct scsi_host_template lpfc_template_nvme = { | |
7198 | .module = THIS_MODULE, | |
7199 | .name = LPFC_DRIVER_NAME, | |
7200 | .proc_name = LPFC_DRIVER_NAME, | |
7201 | .info = lpfc_info, | |
7202 | .queuecommand = lpfc_no_command, | |
7203 | .eh_abort_handler = lpfc_no_handler, | |
7204 | .eh_device_reset_handler = lpfc_no_handler, | |
7205 | .eh_target_reset_handler = lpfc_no_handler, | |
7206 | .eh_bus_reset_handler = lpfc_no_handler, | |
7207 | .eh_host_reset_handler = lpfc_no_handler, | |
7208 | .slave_alloc = lpfc_no_slave, | |
7209 | .slave_configure = lpfc_no_slave, | |
7210 | .scan_finished = lpfc_scan_finished, | |
7211 | .this_id = -1, | |
7212 | .sg_tablesize = 1, | |
7213 | .cmd_per_lun = 1, | |
895427bd | 7214 | .shost_attrs = lpfc_hba_attrs, |
7c30bb62 | 7215 | .max_sectors = 0xFFFFFFFF, |
895427bd JS |
7216 | .vendor_id = LPFC_NL_VENDOR_ID, |
7217 | .track_queue_depth = 0, | |
7218 | }; | |
7219 | ||
dea3101e JB |
7220 | struct scsi_host_template lpfc_template = { |
7221 | .module = THIS_MODULE, | |
7222 | .name = LPFC_DRIVER_NAME, | |
08dcd4cf | 7223 | .proc_name = LPFC_DRIVER_NAME, |
dea3101e JB |
7224 | .info = lpfc_info, |
7225 | .queuecommand = lpfc_queuecommand, | |
b6a05c82 | 7226 | .eh_timed_out = fc_eh_timed_out, |
7f3a79a7 | 7227 | .eh_should_retry_cmd = fc_eh_should_retry_cmd, |
dea3101e | 7228 | .eh_abort_handler = lpfc_abort_handler, |
bbb9d180 JS |
7229 | .eh_device_reset_handler = lpfc_device_reset_handler, |
7230 | .eh_target_reset_handler = lpfc_target_reset_handler, | |
7054a606 | 7231 | .eh_bus_reset_handler = lpfc_bus_reset_handler, |
27b01b82 | 7232 | .eh_host_reset_handler = lpfc_host_reset_handler, |
dea3101e JB |
7233 | .slave_alloc = lpfc_slave_alloc, |
7234 | .slave_configure = lpfc_slave_configure, | |
7235 | .slave_destroy = lpfc_slave_destroy, | |
47a8617c | 7236 | .scan_finished = lpfc_scan_finished, |
dea3101e | 7237 | .this_id = -1, |
83108bd3 | 7238 | .sg_tablesize = LPFC_DEFAULT_SG_SEG_CNT, |
dea3101e | 7239 | .cmd_per_lun = LPFC_CMD_PER_LUN, |
2e0fef85 | 7240 | .shost_attrs = lpfc_hba_attrs, |
7c30bb62 | 7241 | .max_sectors = 0xFFFFFFFF, |
f1c3b0fc | 7242 | .vendor_id = LPFC_NL_VENDOR_ID, |
db5ed4df | 7243 | .change_queue_depth = scsi_change_queue_depth, |
c40ecc12 | 7244 | .track_queue_depth = 1, |
dea3101e | 7245 | }; |