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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. * |
40953bf8 | 4 | * Copyright (C) 2017-2020 Broadcom. All Rights Reserved. The term * |
3e21d1cb | 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 JS |
30 | #include <linux/crc-t10dif.h> |
31 | #include <net/checksum.h> | |
dea3101e JB |
32 | |
33 | #include <scsi/scsi.h> | |
34 | #include <scsi/scsi_device.h> | |
e2a0a9d6 | 35 | #include <scsi/scsi_eh.h> |
dea3101e JB |
36 | #include <scsi/scsi_host.h> |
37 | #include <scsi/scsi_tcq.h> | |
38 | #include <scsi/scsi_transport_fc.h> | |
39 | ||
40 | #include "lpfc_version.h" | |
da0436e9 | 41 | #include "lpfc_hw4.h" |
dea3101e JB |
42 | #include "lpfc_hw.h" |
43 | #include "lpfc_sli.h" | |
da0436e9 | 44 | #include "lpfc_sli4.h" |
ea2151b4 | 45 | #include "lpfc_nl.h" |
dea3101e | 46 | #include "lpfc_disc.h" |
dea3101e | 47 | #include "lpfc.h" |
9a6b09c0 | 48 | #include "lpfc_scsi.h" |
dea3101e JB |
49 | #include "lpfc_logmsg.h" |
50 | #include "lpfc_crtn.h" | |
92d7f7b0 | 51 | #include "lpfc_vport.h" |
dea3101e JB |
52 | |
53 | #define LPFC_RESET_WAIT 2 | |
54 | #define LPFC_ABORT_WAIT 2 | |
55 | ||
e2a0a9d6 | 56 | static char *dif_op_str[] = { |
9a6b09c0 JS |
57 | "PROT_NORMAL", |
58 | "PROT_READ_INSERT", | |
59 | "PROT_WRITE_STRIP", | |
60 | "PROT_READ_STRIP", | |
61 | "PROT_WRITE_INSERT", | |
62 | "PROT_READ_PASS", | |
63 | "PROT_WRITE_PASS", | |
64 | }; | |
65 | ||
f9bb2da1 JS |
66 | struct scsi_dif_tuple { |
67 | __be16 guard_tag; /* Checksum */ | |
68 | __be16 app_tag; /* Opaque storage */ | |
69 | __be32 ref_tag; /* Target LBA or indirect LBA */ | |
70 | }; | |
71 | ||
1ba981fd JS |
72 | static struct lpfc_rport_data * |
73 | lpfc_rport_data_from_scsi_device(struct scsi_device *sdev) | |
74 | { | |
75 | struct lpfc_vport *vport = (struct lpfc_vport *)sdev->host->hostdata; | |
76 | ||
f38fa0bb | 77 | if (vport->phba->cfg_fof) |
1ba981fd JS |
78 | return ((struct lpfc_device_data *)sdev->hostdata)->rport_data; |
79 | else | |
80 | return (struct lpfc_rport_data *)sdev->hostdata; | |
81 | } | |
82 | ||
da0436e9 | 83 | static void |
c490850a | 84 | lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_io_buf *psb); |
1c6f4ef5 | 85 | static void |
c490850a | 86 | lpfc_release_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_io_buf *psb); |
9c6aa9d7 JS |
87 | static int |
88 | lpfc_prot_group_type(struct lpfc_hba *phba, struct scsi_cmnd *sc); | |
e2a0a9d6 | 89 | |
9c6aa9d7 JS |
90 | static inline unsigned |
91 | lpfc_cmd_blksize(struct scsi_cmnd *sc) | |
92 | { | |
93 | return sc->device->sector_size; | |
94 | } | |
95 | ||
96 | #define LPFC_CHECK_PROTECT_GUARD 1 | |
97 | #define LPFC_CHECK_PROTECT_REF 2 | |
98 | static inline unsigned | |
99 | lpfc_cmd_protect(struct scsi_cmnd *sc, int flag) | |
100 | { | |
101 | return 1; | |
102 | } | |
103 | ||
104 | static inline unsigned | |
105 | lpfc_cmd_guard_csum(struct scsi_cmnd *sc) | |
106 | { | |
107 | if (lpfc_prot_group_type(NULL, sc) == LPFC_PG_TYPE_NO_DIF) | |
108 | return 0; | |
109 | if (scsi_host_get_guard(sc->device->host) == SHOST_DIX_GUARD_IP) | |
110 | return 1; | |
111 | return 0; | |
112 | } | |
113 | ||
f1126688 JS |
114 | /** |
115 | * lpfc_sli4_set_rsp_sgl_last - Set the last bit in the response sge. | |
116 | * @phba: Pointer to HBA object. | |
117 | * @lpfc_cmd: lpfc scsi command object pointer. | |
118 | * | |
119 | * This function is called from the lpfc_prep_task_mgmt_cmd function to | |
120 | * set the last bit in the response sge entry. | |
121 | **/ | |
122 | static void | |
123 | lpfc_sli4_set_rsp_sgl_last(struct lpfc_hba *phba, | |
c490850a | 124 | struct lpfc_io_buf *lpfc_cmd) |
f1126688 | 125 | { |
0794d601 | 126 | struct sli4_sge *sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl; |
f1126688 JS |
127 | if (sgl) { |
128 | sgl += 1; | |
129 | sgl->word2 = le32_to_cpu(sgl->word2); | |
130 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
131 | sgl->word2 = cpu_to_le32(sgl->word2); | |
132 | } | |
133 | } | |
134 | ||
ea2151b4 | 135 | /** |
3621a710 | 136 | * lpfc_update_stats - Update statistical data for the command completion |
e5c93b45 | 137 | * @vport: The virtual port on which this call is executing. |
ea2151b4 JS |
138 | * @lpfc_cmd: lpfc scsi command object pointer. |
139 | * | |
140 | * This function is called when there is a command completion and this | |
141 | * function updates the statistical data for the command completion. | |
142 | **/ | |
143 | static void | |
e5c93b45 | 144 | lpfc_update_stats(struct lpfc_vport *vport, struct lpfc_io_buf *lpfc_cmd) |
ea2151b4 | 145 | { |
e5c93b45 | 146 | struct lpfc_hba *phba = vport->phba; |
18027a8c JS |
147 | struct lpfc_rport_data *rdata; |
148 | struct lpfc_nodelist *pnode; | |
ea2151b4 JS |
149 | struct scsi_cmnd *cmd = lpfc_cmd->pCmd; |
150 | unsigned long flags; | |
e5c93b45 | 151 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
ea2151b4 JS |
152 | unsigned long latency; |
153 | int i; | |
154 | ||
18027a8c JS |
155 | if (!vport->stat_data_enabled || |
156 | vport->stat_data_blocked || | |
157 | (cmd->result)) | |
ea2151b4 JS |
158 | return; |
159 | ||
9f1e1b50 | 160 | latency = jiffies_to_msecs((long)jiffies - (long)lpfc_cmd->start_time); |
18027a8c JS |
161 | rdata = lpfc_cmd->rdata; |
162 | pnode = rdata->pnode; | |
9f1e1b50 | 163 | |
ea2151b4 | 164 | spin_lock_irqsave(shost->host_lock, flags); |
18027a8c JS |
165 | if (!pnode || |
166 | !pnode->lat_data || | |
167 | (phba->bucket_type == LPFC_NO_BUCKET)) { | |
ea2151b4 JS |
168 | spin_unlock_irqrestore(shost->host_lock, flags); |
169 | return; | |
170 | } | |
ea2151b4 JS |
171 | |
172 | if (phba->bucket_type == LPFC_LINEAR_BUCKET) { | |
173 | i = (latency + phba->bucket_step - 1 - phba->bucket_base)/ | |
174 | phba->bucket_step; | |
9f1e1b50 JS |
175 | /* check array subscript bounds */ |
176 | if (i < 0) | |
177 | i = 0; | |
178 | else if (i >= LPFC_MAX_BUCKET_COUNT) | |
179 | i = LPFC_MAX_BUCKET_COUNT - 1; | |
ea2151b4 JS |
180 | } else { |
181 | for (i = 0; i < LPFC_MAX_BUCKET_COUNT-1; i++) | |
182 | if (latency <= (phba->bucket_base + | |
183 | ((1<<i)*phba->bucket_step))) | |
184 | break; | |
185 | } | |
186 | ||
187 | pnode->lat_data[i].cmd_count++; | |
188 | spin_unlock_irqrestore(shost->host_lock, flags); | |
189 | } | |
190 | ||
9bad7671 | 191 | /** |
3621a710 | 192 | * lpfc_rampdown_queue_depth - Post RAMP_DOWN_QUEUE event to worker thread |
9bad7671 JS |
193 | * @phba: The Hba for which this call is being executed. |
194 | * | |
195 | * This routine is called when there is resource error in driver or firmware. | |
196 | * This routine posts WORKER_RAMP_DOWN_QUEUE event for @phba. This routine | |
197 | * posts at most 1 event each second. This routine wakes up worker thread of | |
198 | * @phba to process WORKER_RAM_DOWN_EVENT event. | |
199 | * | |
200 | * This routine should be called with no lock held. | |
201 | **/ | |
92d7f7b0 | 202 | void |
eaf15d5b | 203 | lpfc_rampdown_queue_depth(struct lpfc_hba *phba) |
92d7f7b0 JS |
204 | { |
205 | unsigned long flags; | |
5e9d9b82 | 206 | uint32_t evt_posted; |
0d4aec13 | 207 | unsigned long expires; |
92d7f7b0 JS |
208 | |
209 | spin_lock_irqsave(&phba->hbalock, flags); | |
210 | atomic_inc(&phba->num_rsrc_err); | |
211 | phba->last_rsrc_error_time = jiffies; | |
212 | ||
0d4aec13 MS |
213 | expires = phba->last_ramp_down_time + QUEUE_RAMP_DOWN_INTERVAL; |
214 | if (time_after(expires, jiffies)) { | |
92d7f7b0 JS |
215 | spin_unlock_irqrestore(&phba->hbalock, flags); |
216 | return; | |
217 | } | |
218 | ||
219 | phba->last_ramp_down_time = jiffies; | |
220 | ||
221 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
222 | ||
223 | spin_lock_irqsave(&phba->pport->work_port_lock, flags); | |
5e9d9b82 JS |
224 | evt_posted = phba->pport->work_port_events & WORKER_RAMP_DOWN_QUEUE; |
225 | if (!evt_posted) | |
92d7f7b0 | 226 | phba->pport->work_port_events |= WORKER_RAMP_DOWN_QUEUE; |
92d7f7b0 JS |
227 | spin_unlock_irqrestore(&phba->pport->work_port_lock, flags); |
228 | ||
5e9d9b82 JS |
229 | if (!evt_posted) |
230 | lpfc_worker_wake_up(phba); | |
92d7f7b0 JS |
231 | return; |
232 | } | |
233 | ||
9bad7671 | 234 | /** |
3621a710 | 235 | * lpfc_ramp_down_queue_handler - WORKER_RAMP_DOWN_QUEUE event handler |
9bad7671 JS |
236 | * @phba: The Hba for which this call is being executed. |
237 | * | |
238 | * This routine is called to process WORKER_RAMP_DOWN_QUEUE event for worker | |
239 | * thread.This routine reduces queue depth for all scsi device on each vport | |
240 | * associated with @phba. | |
241 | **/ | |
92d7f7b0 JS |
242 | void |
243 | lpfc_ramp_down_queue_handler(struct lpfc_hba *phba) | |
244 | { | |
549e55cd JS |
245 | struct lpfc_vport **vports; |
246 | struct Scsi_Host *shost; | |
92d7f7b0 | 247 | struct scsi_device *sdev; |
5ffc266e | 248 | unsigned long new_queue_depth; |
92d7f7b0 | 249 | unsigned long num_rsrc_err, num_cmd_success; |
549e55cd | 250 | int i; |
92d7f7b0 JS |
251 | |
252 | num_rsrc_err = atomic_read(&phba->num_rsrc_err); | |
253 | num_cmd_success = atomic_read(&phba->num_cmd_success); | |
254 | ||
75ad83a4 JS |
255 | /* |
256 | * The error and success command counters are global per | |
257 | * driver instance. If another handler has already | |
258 | * operated on this error event, just exit. | |
259 | */ | |
260 | if (num_rsrc_err == 0) | |
261 | return; | |
262 | ||
549e55cd JS |
263 | vports = lpfc_create_vport_work_array(phba); |
264 | if (vports != NULL) | |
21e9a0a5 | 265 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
549e55cd JS |
266 | shost = lpfc_shost_from_vport(vports[i]); |
267 | shost_for_each_device(sdev, shost) { | |
92d7f7b0 | 268 | new_queue_depth = |
549e55cd JS |
269 | sdev->queue_depth * num_rsrc_err / |
270 | (num_rsrc_err + num_cmd_success); | |
271 | if (!new_queue_depth) | |
272 | new_queue_depth = sdev->queue_depth - 1; | |
273 | else | |
274 | new_queue_depth = sdev->queue_depth - | |
275 | new_queue_depth; | |
db5ed4df | 276 | scsi_change_queue_depth(sdev, new_queue_depth); |
549e55cd | 277 | } |
92d7f7b0 | 278 | } |
09372820 | 279 | lpfc_destroy_vport_work_array(phba, vports); |
92d7f7b0 JS |
280 | atomic_set(&phba->num_rsrc_err, 0); |
281 | atomic_set(&phba->num_cmd_success, 0); | |
282 | } | |
283 | ||
a8e497d5 | 284 | /** |
3621a710 | 285 | * lpfc_scsi_dev_block - set all scsi hosts to block state |
a8e497d5 JS |
286 | * @phba: Pointer to HBA context object. |
287 | * | |
288 | * This function walks vport list and set each SCSI host to block state | |
289 | * by invoking fc_remote_port_delete() routine. This function is invoked | |
290 | * with EEH when device's PCI slot has been permanently disabled. | |
291 | **/ | |
292 | void | |
293 | lpfc_scsi_dev_block(struct lpfc_hba *phba) | |
294 | { | |
295 | struct lpfc_vport **vports; | |
296 | struct Scsi_Host *shost; | |
297 | struct scsi_device *sdev; | |
298 | struct fc_rport *rport; | |
299 | int i; | |
300 | ||
301 | vports = lpfc_create_vport_work_array(phba); | |
302 | if (vports != NULL) | |
21e9a0a5 | 303 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
a8e497d5 JS |
304 | shost = lpfc_shost_from_vport(vports[i]); |
305 | shost_for_each_device(sdev, shost) { | |
306 | rport = starget_to_rport(scsi_target(sdev)); | |
307 | fc_remote_port_delete(rport); | |
308 | } | |
309 | } | |
310 | lpfc_destroy_vport_work_array(phba, vports); | |
311 | } | |
312 | ||
9bad7671 | 313 | /** |
3772a991 | 314 | * lpfc_new_scsi_buf_s3 - Scsi buffer allocator for HBA with SLI3 IF spec |
9bad7671 | 315 | * @vport: The virtual port for which this call being executed. |
3772a991 | 316 | * @num_to_allocate: The requested number of buffers to allocate. |
9bad7671 | 317 | * |
3772a991 JS |
318 | * This routine allocates a scsi buffer for device with SLI-3 interface spec, |
319 | * the scsi buffer contains all the necessary information needed to initiate | |
320 | * a SCSI I/O. The non-DMAable buffer region contains information to build | |
321 | * the IOCB. The DMAable region contains memory for the FCP CMND, FCP RSP, | |
322 | * and the initial BPL. In addition to allocating memory, the FCP CMND and | |
323 | * FCP RSP BDEs are setup in the BPL and the BPL BDE is setup in the IOCB. | |
9bad7671 JS |
324 | * |
325 | * Return codes: | |
3772a991 JS |
326 | * int - number of scsi buffers that were allocated. |
327 | * 0 = failure, less than num_to_alloc is a partial failure. | |
9bad7671 | 328 | **/ |
3772a991 JS |
329 | static int |
330 | lpfc_new_scsi_buf_s3(struct lpfc_vport *vport, int num_to_alloc) | |
dea3101e | 331 | { |
2e0fef85 | 332 | struct lpfc_hba *phba = vport->phba; |
c490850a | 333 | struct lpfc_io_buf *psb; |
dea3101e JB |
334 | struct ulp_bde64 *bpl; |
335 | IOCB_t *iocb; | |
34b02dcd JS |
336 | dma_addr_t pdma_phys_fcp_cmd; |
337 | dma_addr_t pdma_phys_fcp_rsp; | |
0794d601 | 338 | dma_addr_t pdma_phys_sgl; |
604a3e30 | 339 | uint16_t iotag; |
96f7077f JS |
340 | int bcnt, bpl_size; |
341 | ||
342 | bpl_size = phba->cfg_sg_dma_buf_size - | |
343 | (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp)); | |
344 | ||
345 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
346 | "9067 ALLOC %d scsi_bufs: %d (%d + %d + %d)\n", | |
347 | num_to_alloc, phba->cfg_sg_dma_buf_size, | |
348 | (int)sizeof(struct fcp_cmnd), | |
349 | (int)sizeof(struct fcp_rsp), bpl_size); | |
dea3101e | 350 | |
3772a991 | 351 | for (bcnt = 0; bcnt < num_to_alloc; bcnt++) { |
c490850a | 352 | psb = kzalloc(sizeof(struct lpfc_io_buf), GFP_KERNEL); |
3772a991 JS |
353 | if (!psb) |
354 | break; | |
dea3101e | 355 | |
3772a991 JS |
356 | /* |
357 | * Get memory from the pci pool to map the virt space to pci | |
358 | * bus space for an I/O. The DMA buffer includes space for the | |
359 | * struct fcp_cmnd, struct fcp_rsp and the number of bde's | |
360 | * necessary to support the sg_tablesize. | |
361 | */ | |
771db5c0 | 362 | psb->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool, |
3772a991 JS |
363 | GFP_KERNEL, &psb->dma_handle); |
364 | if (!psb->data) { | |
365 | kfree(psb); | |
366 | break; | |
367 | } | |
368 | ||
3772a991 JS |
369 | |
370 | /* Allocate iotag for psb->cur_iocbq. */ | |
371 | iotag = lpfc_sli_next_iotag(phba, &psb->cur_iocbq); | |
372 | if (iotag == 0) { | |
771db5c0 | 373 | dma_pool_free(phba->lpfc_sg_dma_buf_pool, |
895427bd | 374 | psb->data, psb->dma_handle); |
3772a991 JS |
375 | kfree(psb); |
376 | break; | |
377 | } | |
378 | psb->cur_iocbq.iocb_flag |= LPFC_IO_FCP; | |
379 | ||
380 | psb->fcp_cmnd = psb->data; | |
381 | psb->fcp_rsp = psb->data + sizeof(struct fcp_cmnd); | |
0794d601 | 382 | psb->dma_sgl = psb->data + sizeof(struct fcp_cmnd) + |
34b02dcd | 383 | sizeof(struct fcp_rsp); |
dea3101e | 384 | |
3772a991 | 385 | /* Initialize local short-hand pointers. */ |
c490850a | 386 | bpl = (struct ulp_bde64 *)psb->dma_sgl; |
3772a991 JS |
387 | pdma_phys_fcp_cmd = psb->dma_handle; |
388 | pdma_phys_fcp_rsp = psb->dma_handle + sizeof(struct fcp_cmnd); | |
0794d601 | 389 | pdma_phys_sgl = psb->dma_handle + sizeof(struct fcp_cmnd) + |
3772a991 JS |
390 | sizeof(struct fcp_rsp); |
391 | ||
392 | /* | |
393 | * The first two bdes are the FCP_CMD and FCP_RSP. The balance | |
394 | * are sg list bdes. Initialize the first two and leave the | |
395 | * rest for queuecommand. | |
396 | */ | |
397 | bpl[0].addrHigh = le32_to_cpu(putPaddrHigh(pdma_phys_fcp_cmd)); | |
398 | bpl[0].addrLow = le32_to_cpu(putPaddrLow(pdma_phys_fcp_cmd)); | |
399 | bpl[0].tus.f.bdeSize = sizeof(struct fcp_cmnd); | |
400 | bpl[0].tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
401 | bpl[0].tus.w = le32_to_cpu(bpl[0].tus.w); | |
402 | ||
403 | /* Setup the physical region for the FCP RSP */ | |
404 | bpl[1].addrHigh = le32_to_cpu(putPaddrHigh(pdma_phys_fcp_rsp)); | |
405 | bpl[1].addrLow = le32_to_cpu(putPaddrLow(pdma_phys_fcp_rsp)); | |
406 | bpl[1].tus.f.bdeSize = sizeof(struct fcp_rsp); | |
407 | bpl[1].tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
408 | bpl[1].tus.w = le32_to_cpu(bpl[1].tus.w); | |
409 | ||
410 | /* | |
411 | * Since the IOCB for the FCP I/O is built into this | |
412 | * lpfc_scsi_buf, initialize it with all known data now. | |
413 | */ | |
414 | iocb = &psb->cur_iocbq.iocb; | |
415 | iocb->un.fcpi64.bdl.ulpIoTag32 = 0; | |
416 | if ((phba->sli_rev == 3) && | |
417 | !(phba->sli3_options & LPFC_SLI3_BG_ENABLED)) { | |
418 | /* fill in immediate fcp command BDE */ | |
419 | iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BDE_IMMED; | |
420 | iocb->un.fcpi64.bdl.bdeSize = sizeof(struct fcp_cmnd); | |
421 | iocb->un.fcpi64.bdl.addrLow = offsetof(IOCB_t, | |
422 | unsli3.fcp_ext.icd); | |
423 | iocb->un.fcpi64.bdl.addrHigh = 0; | |
424 | iocb->ulpBdeCount = 0; | |
425 | iocb->ulpLe = 0; | |
25985edc | 426 | /* fill in response BDE */ |
3772a991 JS |
427 | iocb->unsli3.fcp_ext.rbde.tus.f.bdeFlags = |
428 | BUFF_TYPE_BDE_64; | |
429 | iocb->unsli3.fcp_ext.rbde.tus.f.bdeSize = | |
430 | sizeof(struct fcp_rsp); | |
431 | iocb->unsli3.fcp_ext.rbde.addrLow = | |
432 | putPaddrLow(pdma_phys_fcp_rsp); | |
433 | iocb->unsli3.fcp_ext.rbde.addrHigh = | |
434 | putPaddrHigh(pdma_phys_fcp_rsp); | |
435 | } else { | |
436 | iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
437 | iocb->un.fcpi64.bdl.bdeSize = | |
438 | (2 * sizeof(struct ulp_bde64)); | |
439 | iocb->un.fcpi64.bdl.addrLow = | |
0794d601 | 440 | putPaddrLow(pdma_phys_sgl); |
3772a991 | 441 | iocb->un.fcpi64.bdl.addrHigh = |
0794d601 | 442 | putPaddrHigh(pdma_phys_sgl); |
3772a991 JS |
443 | iocb->ulpBdeCount = 1; |
444 | iocb->ulpLe = 1; | |
445 | } | |
446 | iocb->ulpClass = CLASS3; | |
447 | psb->status = IOSTAT_SUCCESS; | |
da0436e9 | 448 | /* Put it back into the SCSI buffer list */ |
eee8877e | 449 | psb->cur_iocbq.context1 = psb; |
c2017260 | 450 | spin_lock_init(&psb->buf_lock); |
1c6f4ef5 | 451 | lpfc_release_scsi_buf_s3(phba, psb); |
dea3101e | 452 | |
34b02dcd | 453 | } |
dea3101e | 454 | |
3772a991 | 455 | return bcnt; |
dea3101e JB |
456 | } |
457 | ||
1151e3ec JS |
458 | /** |
459 | * lpfc_sli4_vport_delete_fcp_xri_aborted -Remove all ndlp references for vport | |
460 | * @vport: pointer to lpfc vport data structure. | |
461 | * | |
462 | * This routine is invoked by the vport cleanup for deletions and the cleanup | |
463 | * for an ndlp on removal. | |
464 | **/ | |
465 | void | |
466 | lpfc_sli4_vport_delete_fcp_xri_aborted(struct lpfc_vport *vport) | |
467 | { | |
468 | struct lpfc_hba *phba = vport->phba; | |
c490850a | 469 | struct lpfc_io_buf *psb, *next_psb; |
5e5b511d | 470 | struct lpfc_sli4_hdw_queue *qp; |
1151e3ec | 471 | unsigned long iflag = 0; |
5e5b511d | 472 | int idx; |
1151e3ec | 473 | |
f6e84790 | 474 | if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) |
895427bd | 475 | return; |
5e5b511d | 476 | |
1151e3ec | 477 | spin_lock_irqsave(&phba->hbalock, iflag); |
5e5b511d JS |
478 | for (idx = 0; idx < phba->cfg_hdw_queue; idx++) { |
479 | qp = &phba->sli4_hba.hdwq[idx]; | |
480 | ||
c00f62e6 | 481 | spin_lock(&qp->abts_io_buf_list_lock); |
5e5b511d | 482 | list_for_each_entry_safe(psb, next_psb, |
c00f62e6 | 483 | &qp->lpfc_abts_io_buf_list, list) { |
390e6a77 | 484 | if (psb->cur_iocbq.iocb_flag & LPFC_IO_NVME) |
c00f62e6 JS |
485 | continue; |
486 | ||
5e5b511d JS |
487 | if (psb->rdata && psb->rdata->pnode && |
488 | psb->rdata->pnode->vport == vport) | |
489 | psb->rdata = NULL; | |
490 | } | |
c00f62e6 | 491 | spin_unlock(&qp->abts_io_buf_list_lock); |
1151e3ec | 492 | } |
1151e3ec JS |
493 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
494 | } | |
495 | ||
da0436e9 | 496 | /** |
c00f62e6 | 497 | * lpfc_sli4_io_xri_aborted - Fast-path process of fcp xri abort |
da0436e9 JS |
498 | * @phba: pointer to lpfc hba data structure. |
499 | * @axri: pointer to the fcp xri abort wcqe structure. | |
500 | * | |
501 | * This routine is invoked by the worker thread to process a SLI4 fast-path | |
c00f62e6 | 502 | * FCP or NVME aborted xri. |
da0436e9 JS |
503 | **/ |
504 | void | |
c00f62e6 JS |
505 | lpfc_sli4_io_xri_aborted(struct lpfc_hba *phba, |
506 | struct sli4_wcqe_xri_aborted *axri, int idx) | |
da0436e9 JS |
507 | { |
508 | uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri); | |
19ca7609 | 509 | uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri); |
c490850a | 510 | struct lpfc_io_buf *psb, *next_psb; |
5e5b511d | 511 | struct lpfc_sli4_hdw_queue *qp; |
da0436e9 | 512 | unsigned long iflag = 0; |
0f65ff68 JS |
513 | struct lpfc_iocbq *iocbq; |
514 | int i; | |
19ca7609 JS |
515 | struct lpfc_nodelist *ndlp; |
516 | int rrq_empty = 0; | |
895427bd | 517 | struct lpfc_sli_ring *pring = phba->sli4_hba.els_wq->pring; |
da0436e9 | 518 | |
895427bd JS |
519 | if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) |
520 | return; | |
5e5b511d JS |
521 | |
522 | qp = &phba->sli4_hba.hdwq[idx]; | |
0f65ff68 | 523 | spin_lock_irqsave(&phba->hbalock, iflag); |
c00f62e6 | 524 | spin_lock(&qp->abts_io_buf_list_lock); |
da0436e9 | 525 | list_for_each_entry_safe(psb, next_psb, |
c00f62e6 | 526 | &qp->lpfc_abts_io_buf_list, list) { |
da0436e9 | 527 | if (psb->cur_iocbq.sli4_xritag == xri) { |
c00f62e6 | 528 | list_del_init(&psb->list); |
a3c51276 | 529 | psb->flags &= ~LPFC_SBUF_XBUSY; |
da0436e9 | 530 | psb->status = IOSTAT_SUCCESS; |
390e6a77 | 531 | if (psb->cur_iocbq.iocb_flag & LPFC_IO_NVME) { |
c00f62e6 JS |
532 | qp->abts_nvme_io_bufs--; |
533 | spin_unlock(&qp->abts_io_buf_list_lock); | |
534 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
535 | lpfc_sli4_nvme_xri_aborted(phba, axri, psb); | |
536 | return; | |
537 | } | |
c00f62e6 JS |
538 | qp->abts_scsi_io_bufs--; |
539 | spin_unlock(&qp->abts_io_buf_list_lock); | |
540 | ||
1151e3ec JS |
541 | if (psb->rdata && psb->rdata->pnode) |
542 | ndlp = psb->rdata->pnode; | |
543 | else | |
544 | ndlp = NULL; | |
545 | ||
19ca7609 | 546 | rrq_empty = list_empty(&phba->active_rrq_list); |
0f65ff68 | 547 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
cb69f7de | 548 | if (ndlp) { |
ee0f4fe1 JS |
549 | lpfc_set_rrq_active(phba, ndlp, |
550 | psb->cur_iocbq.sli4_lxritag, rxid, 1); | |
cb69f7de JS |
551 | lpfc_sli4_abts_err_handler(phba, ndlp, axri); |
552 | } | |
da0436e9 | 553 | lpfc_release_scsi_buf_s4(phba, psb); |
19ca7609 JS |
554 | if (rrq_empty) |
555 | lpfc_worker_wake_up(phba); | |
da0436e9 JS |
556 | return; |
557 | } | |
558 | } | |
c00f62e6 | 559 | spin_unlock(&qp->abts_io_buf_list_lock); |
0f65ff68 JS |
560 | for (i = 1; i <= phba->sli.last_iotag; i++) { |
561 | iocbq = phba->sli.iocbq_lookup[i]; | |
562 | ||
c00f62e6 JS |
563 | if (!(iocbq->iocb_flag & LPFC_IO_FCP) || |
564 | (iocbq->iocb_flag & LPFC_IO_LIBDFC)) | |
0f65ff68 JS |
565 | continue; |
566 | if (iocbq->sli4_xritag != xri) | |
567 | continue; | |
c490850a | 568 | psb = container_of(iocbq, struct lpfc_io_buf, cur_iocbq); |
a3c51276 | 569 | psb->flags &= ~LPFC_SBUF_XBUSY; |
0f65ff68 | 570 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
0e9bb8d7 | 571 | if (!list_empty(&pring->txq)) |
589a52d6 | 572 | lpfc_worker_wake_up(phba); |
0f65ff68 JS |
573 | return; |
574 | ||
575 | } | |
576 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
da0436e9 JS |
577 | } |
578 | ||
3772a991 | 579 | /** |
19ca7609 | 580 | * lpfc_get_scsi_buf_s3 - Get a scsi buffer from lpfc_scsi_buf_list of the HBA |
3772a991 | 581 | * @phba: The HBA for which this call is being executed. |
9bad7671 JS |
582 | * |
583 | * This routine removes a scsi buffer from head of @phba lpfc_scsi_buf_list list | |
584 | * and returns to caller. | |
585 | * | |
586 | * Return codes: | |
587 | * NULL - Error | |
588 | * Pointer to lpfc_scsi_buf - Success | |
589 | **/ | |
c490850a | 590 | static struct lpfc_io_buf * |
ace44e48 JS |
591 | lpfc_get_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, |
592 | struct scsi_cmnd *cmnd) | |
dea3101e | 593 | { |
c490850a | 594 | struct lpfc_io_buf *lpfc_cmd = NULL; |
a40fc5f0 | 595 | struct list_head *scsi_buf_list_get = &phba->lpfc_scsi_buf_list_get; |
164cecd1 | 596 | unsigned long iflag = 0; |
a40fc5f0 | 597 | |
164cecd1 | 598 | spin_lock_irqsave(&phba->scsi_buf_list_get_lock, iflag); |
c490850a | 599 | list_remove_head(scsi_buf_list_get, lpfc_cmd, struct lpfc_io_buf, |
a40fc5f0 JS |
600 | list); |
601 | if (!lpfc_cmd) { | |
164cecd1 | 602 | spin_lock(&phba->scsi_buf_list_put_lock); |
a40fc5f0 JS |
603 | list_splice(&phba->lpfc_scsi_buf_list_put, |
604 | &phba->lpfc_scsi_buf_list_get); | |
605 | INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); | |
606 | list_remove_head(scsi_buf_list_get, lpfc_cmd, | |
c490850a | 607 | struct lpfc_io_buf, list); |
164cecd1 | 608 | spin_unlock(&phba->scsi_buf_list_put_lock); |
1dcb58e5 | 609 | } |
164cecd1 | 610 | spin_unlock_irqrestore(&phba->scsi_buf_list_get_lock, iflag); |
2a5b7d62 | 611 | |
8f82561d | 612 | if (lpfc_ndlp_check_qdepth(phba, ndlp)) { |
2a5b7d62 JS |
613 | atomic_inc(&ndlp->cmd_pending); |
614 | lpfc_cmd->flags |= LPFC_SBUF_BUMP_QDEPTH; | |
615 | } | |
0bd4ca25 JSEC |
616 | return lpfc_cmd; |
617 | } | |
19ca7609 | 618 | /** |
5e5b511d | 619 | * lpfc_get_scsi_buf_s4 - Get a scsi buffer from io_buf_list of the HBA |
19ca7609 JS |
620 | * @phba: The HBA for which this call is being executed. |
621 | * | |
5e5b511d | 622 | * This routine removes a scsi buffer from head of @hdwq io_buf_list |
19ca7609 JS |
623 | * and returns to caller. |
624 | * | |
625 | * Return codes: | |
626 | * NULL - Error | |
627 | * Pointer to lpfc_scsi_buf - Success | |
628 | **/ | |
c490850a | 629 | static struct lpfc_io_buf * |
ace44e48 JS |
630 | lpfc_get_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, |
631 | struct scsi_cmnd *cmnd) | |
19ca7609 | 632 | { |
c490850a | 633 | struct lpfc_io_buf *lpfc_cmd; |
5e5b511d | 634 | struct lpfc_sli4_hdw_queue *qp; |
0794d601 JS |
635 | struct sli4_sge *sgl; |
636 | IOCB_t *iocb; | |
637 | dma_addr_t pdma_phys_fcp_rsp; | |
638 | dma_addr_t pdma_phys_fcp_cmd; | |
d79c9e9d | 639 | uint32_t cpu, idx; |
ace44e48 | 640 | int tag; |
d79c9e9d | 641 | struct fcp_cmd_rsp_buf *tmp = NULL; |
19ca7609 | 642 | |
d6d189ce | 643 | cpu = raw_smp_processor_id(); |
45aa312e | 644 | if (cmnd && phba->cfg_fcp_io_sched == LPFC_FCP_SCHED_BY_HDWQ) { |
ace44e48 JS |
645 | tag = blk_mq_unique_tag(cmnd->request); |
646 | idx = blk_mq_unique_tag_to_hwq(tag); | |
647 | } else { | |
6a828b0f | 648 | idx = phba->sli4_hba.cpu_map[cpu].hdwq; |
ace44e48 | 649 | } |
5e5b511d | 650 | |
c490850a JS |
651 | lpfc_cmd = lpfc_get_io_buf(phba, ndlp, idx, |
652 | !phba->cfg_xri_rebalancing); | |
653 | if (!lpfc_cmd) { | |
654 | qp = &phba->sli4_hba.hdwq[idx]; | |
5e5b511d | 655 | qp->empty_io_bufs++; |
1151e3ec | 656 | return NULL; |
5e5b511d | 657 | } |
2a5b7d62 | 658 | |
0794d601 JS |
659 | /* Setup key fields in buffer that may have been changed |
660 | * if other protocols used this buffer. | |
661 | */ | |
662 | lpfc_cmd->cur_iocbq.iocb_flag = LPFC_IO_FCP; | |
663 | lpfc_cmd->prot_seg_cnt = 0; | |
664 | lpfc_cmd->seg_cnt = 0; | |
0794d601 JS |
665 | lpfc_cmd->timeout = 0; |
666 | lpfc_cmd->flags = 0; | |
667 | lpfc_cmd->start_time = jiffies; | |
668 | lpfc_cmd->waitq = NULL; | |
5e5b511d | 669 | lpfc_cmd->cpu = cpu; |
0794d601 JS |
670 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
671 | lpfc_cmd->prot_data_type = 0; | |
672 | #endif | |
d79c9e9d | 673 | tmp = lpfc_get_cmd_rsp_buf_per_hdwq(phba, lpfc_cmd); |
6b580641 JS |
674 | if (!tmp) { |
675 | lpfc_release_io_buf(phba, lpfc_cmd, lpfc_cmd->hdwq); | |
d79c9e9d | 676 | return NULL; |
6b580641 | 677 | } |
d79c9e9d JS |
678 | |
679 | lpfc_cmd->fcp_cmnd = tmp->fcp_cmnd; | |
680 | lpfc_cmd->fcp_rsp = tmp->fcp_rsp; | |
0794d601 JS |
681 | |
682 | /* | |
683 | * The first two SGEs are the FCP_CMD and FCP_RSP. | |
684 | * The balance are sg list bdes. Initialize the | |
685 | * first two and leave the rest for queuecommand. | |
686 | */ | |
687 | sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl; | |
d79c9e9d | 688 | pdma_phys_fcp_cmd = tmp->fcp_cmd_rsp_dma_handle; |
0794d601 JS |
689 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(pdma_phys_fcp_cmd)); |
690 | sgl->addr_lo = cpu_to_le32(putPaddrLow(pdma_phys_fcp_cmd)); | |
691 | sgl->word2 = le32_to_cpu(sgl->word2); | |
692 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
693 | sgl->word2 = cpu_to_le32(sgl->word2); | |
694 | sgl->sge_len = cpu_to_le32(sizeof(struct fcp_cmnd)); | |
695 | sgl++; | |
696 | ||
697 | /* Setup the physical region for the FCP RSP */ | |
698 | pdma_phys_fcp_rsp = pdma_phys_fcp_cmd + sizeof(struct fcp_cmnd); | |
699 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(pdma_phys_fcp_rsp)); | |
700 | sgl->addr_lo = cpu_to_le32(putPaddrLow(pdma_phys_fcp_rsp)); | |
701 | sgl->word2 = le32_to_cpu(sgl->word2); | |
702 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
703 | sgl->word2 = cpu_to_le32(sgl->word2); | |
704 | sgl->sge_len = cpu_to_le32(sizeof(struct fcp_rsp)); | |
705 | ||
706 | /* | |
707 | * Since the IOCB for the FCP I/O is built into this | |
c490850a | 708 | * lpfc_io_buf, initialize it with all known data now. |
0794d601 JS |
709 | */ |
710 | iocb = &lpfc_cmd->cur_iocbq.iocb; | |
711 | iocb->un.fcpi64.bdl.ulpIoTag32 = 0; | |
712 | iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BDE_64; | |
713 | /* setting the BLP size to 2 * sizeof BDE may not be correct. | |
714 | * We are setting the bpl to point to out sgl. An sgl's | |
715 | * entries are 16 bytes, a bpl entries are 12 bytes. | |
716 | */ | |
717 | iocb->un.fcpi64.bdl.bdeSize = sizeof(struct fcp_cmnd); | |
718 | iocb->un.fcpi64.bdl.addrLow = putPaddrLow(pdma_phys_fcp_cmd); | |
719 | iocb->un.fcpi64.bdl.addrHigh = putPaddrHigh(pdma_phys_fcp_cmd); | |
720 | iocb->ulpBdeCount = 1; | |
721 | iocb->ulpLe = 1; | |
722 | iocb->ulpClass = CLASS3; | |
723 | ||
644726cf | 724 | if (lpfc_ndlp_check_qdepth(phba, ndlp) && lpfc_cmd) { |
2a5b7d62 JS |
725 | atomic_inc(&ndlp->cmd_pending); |
726 | lpfc_cmd->flags |= LPFC_SBUF_BUMP_QDEPTH; | |
727 | } | |
a40fc5f0 | 728 | return lpfc_cmd; |
19ca7609 JS |
729 | } |
730 | /** | |
731 | * lpfc_get_scsi_buf - Get a scsi buffer from lpfc_scsi_buf_list of the HBA | |
732 | * @phba: The HBA for which this call is being executed. | |
733 | * | |
734 | * This routine removes a scsi buffer from head of @phba lpfc_scsi_buf_list list | |
735 | * and returns to caller. | |
736 | * | |
737 | * Return codes: | |
738 | * NULL - Error | |
739 | * Pointer to lpfc_scsi_buf - Success | |
740 | **/ | |
c490850a | 741 | static struct lpfc_io_buf* |
ace44e48 JS |
742 | lpfc_get_scsi_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, |
743 | struct scsi_cmnd *cmnd) | |
19ca7609 | 744 | { |
ace44e48 | 745 | return phba->lpfc_get_scsi_buf(phba, ndlp, cmnd); |
19ca7609 | 746 | } |
dea3101e | 747 | |
9bad7671 | 748 | /** |
3772a991 | 749 | * lpfc_release_scsi_buf - Return a scsi buffer back to hba scsi buf list |
9bad7671 JS |
750 | * @phba: The Hba for which this call is being executed. |
751 | * @psb: The scsi buffer which is being released. | |
752 | * | |
753 | * This routine releases @psb scsi buffer by adding it to tail of @phba | |
754 | * lpfc_scsi_buf_list list. | |
755 | **/ | |
0bd4ca25 | 756 | static void |
c490850a | 757 | lpfc_release_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_io_buf *psb) |
0bd4ca25 | 758 | { |
875fbdfe | 759 | unsigned long iflag = 0; |
dea3101e | 760 | |
a40fc5f0 | 761 | psb->seg_cnt = 0; |
a40fc5f0 JS |
762 | psb->prot_seg_cnt = 0; |
763 | ||
764 | spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag); | |
0bd4ca25 | 765 | psb->pCmd = NULL; |
6a485eb9 | 766 | psb->cur_iocbq.iocb_flag = LPFC_IO_FCP; |
a40fc5f0 JS |
767 | list_add_tail(&psb->list, &phba->lpfc_scsi_buf_list_put); |
768 | spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag); | |
dea3101e JB |
769 | } |
770 | ||
da0436e9 JS |
771 | /** |
772 | * lpfc_release_scsi_buf_s4: Return a scsi buffer back to hba scsi buf list. | |
773 | * @phba: The Hba for which this call is being executed. | |
774 | * @psb: The scsi buffer which is being released. | |
775 | * | |
5e5b511d JS |
776 | * This routine releases @psb scsi buffer by adding it to tail of @hdwq |
777 | * io_buf_list list. For SLI4 XRI's are tied to the scsi buffer | |
da0436e9 JS |
778 | * and cannot be reused for at least RA_TOV amount of time if it was |
779 | * aborted. | |
780 | **/ | |
781 | static void | |
c490850a | 782 | lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_io_buf *psb) |
da0436e9 | 783 | { |
5e5b511d | 784 | struct lpfc_sli4_hdw_queue *qp; |
da0436e9 JS |
785 | unsigned long iflag = 0; |
786 | ||
a40fc5f0 | 787 | psb->seg_cnt = 0; |
a40fc5f0 JS |
788 | psb->prot_seg_cnt = 0; |
789 | ||
1fbf9742 | 790 | qp = psb->hdwq; |
a3c51276 | 791 | if (psb->flags & LPFC_SBUF_XBUSY) { |
c00f62e6 | 792 | spin_lock_irqsave(&qp->abts_io_buf_list_lock, iflag); |
da0436e9 | 793 | psb->pCmd = NULL; |
c00f62e6 | 794 | list_add_tail(&psb->list, &qp->lpfc_abts_io_buf_list); |
5e5b511d | 795 | qp->abts_scsi_io_bufs++; |
c00f62e6 | 796 | spin_unlock_irqrestore(&qp->abts_io_buf_list_lock, iflag); |
da0436e9 | 797 | } else { |
c490850a | 798 | lpfc_release_io_buf(phba, (struct lpfc_io_buf *)psb, qp); |
da0436e9 JS |
799 | } |
800 | } | |
801 | ||
9bad7671 | 802 | /** |
3772a991 JS |
803 | * lpfc_release_scsi_buf: Return a scsi buffer back to hba scsi buf list. |
804 | * @phba: The Hba for which this call is being executed. | |
805 | * @psb: The scsi buffer which is being released. | |
806 | * | |
807 | * This routine releases @psb scsi buffer by adding it to tail of @phba | |
808 | * lpfc_scsi_buf_list list. | |
809 | **/ | |
810 | static void | |
c490850a | 811 | lpfc_release_scsi_buf(struct lpfc_hba *phba, struct lpfc_io_buf *psb) |
3772a991 | 812 | { |
2a5b7d62 JS |
813 | if ((psb->flags & LPFC_SBUF_BUMP_QDEPTH) && psb->ndlp) |
814 | atomic_dec(&psb->ndlp->cmd_pending); | |
3772a991 | 815 | |
2a5b7d62 | 816 | psb->flags &= ~LPFC_SBUF_BUMP_QDEPTH; |
3772a991 JS |
817 | phba->lpfc_release_scsi_buf(phba, psb); |
818 | } | |
819 | ||
820 | /** | |
821 | * lpfc_scsi_prep_dma_buf_s3 - DMA mapping for scsi buffer to SLI3 IF spec | |
9bad7671 JS |
822 | * @phba: The Hba for which this call is being executed. |
823 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
824 | * | |
825 | * This routine does the pci dma mapping for scatter-gather list of scsi cmnd | |
3772a991 | 826 | * field of @lpfc_cmd for device with SLI-3 interface spec. This routine scans |
4b160ae8 | 827 | * through sg elements and format the bde. This routine also initializes all |
3772a991 | 828 | * IOCB fields which are dependent on scsi command request buffer. |
9bad7671 JS |
829 | * |
830 | * Return codes: | |
831 | * 1 - Error | |
832 | * 0 - Success | |
833 | **/ | |
dea3101e | 834 | static int |
c490850a | 835 | lpfc_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd) |
dea3101e JB |
836 | { |
837 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
838 | struct scatterlist *sgel = NULL; | |
839 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
c490850a | 840 | struct ulp_bde64 *bpl = (struct ulp_bde64 *)lpfc_cmd->dma_sgl; |
0f65ff68 | 841 | struct lpfc_iocbq *iocbq = &lpfc_cmd->cur_iocbq; |
dea3101e | 842 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; |
34b02dcd | 843 | struct ulp_bde64 *data_bde = iocb_cmd->unsli3.fcp_ext.dbde; |
dea3101e | 844 | dma_addr_t physaddr; |
34b02dcd | 845 | uint32_t num_bde = 0; |
a0b4f78f | 846 | int nseg, datadir = scsi_cmnd->sc_data_direction; |
dea3101e JB |
847 | |
848 | /* | |
849 | * There are three possibilities here - use scatter-gather segment, use | |
850 | * the single mapping, or neither. Start the lpfc command prep by | |
851 | * bumping the bpl beyond the fcp_cmnd and fcp_rsp regions to the first | |
852 | * data bde entry. | |
853 | */ | |
854 | bpl += 2; | |
c59fd9eb | 855 | if (scsi_sg_count(scsi_cmnd)) { |
dea3101e JB |
856 | /* |
857 | * The driver stores the segment count returned from pci_map_sg | |
858 | * because this a count of dma-mappings used to map the use_sg | |
859 | * pages. They are not guaranteed to be the same for those | |
860 | * architectures that implement an IOMMU. | |
861 | */ | |
dea3101e | 862 | |
c59fd9eb FT |
863 | nseg = dma_map_sg(&phba->pcidev->dev, scsi_sglist(scsi_cmnd), |
864 | scsi_sg_count(scsi_cmnd), datadir); | |
865 | if (unlikely(!nseg)) | |
866 | return 1; | |
867 | ||
a0b4f78f | 868 | lpfc_cmd->seg_cnt = nseg; |
dea3101e | 869 | if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) { |
6a9c52cf JS |
870 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
871 | "9064 BLKGRD: %s: Too many sg segments from " | |
e2a0a9d6 | 872 | "dma_map_sg. Config %d, seg_cnt %d\n", |
cadbd4a5 | 873 | __func__, phba->cfg_sg_seg_cnt, |
dea3101e | 874 | lpfc_cmd->seg_cnt); |
5e0e2318 | 875 | WARN_ON_ONCE(lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt); |
96f7077f | 876 | lpfc_cmd->seg_cnt = 0; |
a0b4f78f | 877 | scsi_dma_unmap(scsi_cmnd); |
5e0e2318 | 878 | return 2; |
dea3101e JB |
879 | } |
880 | ||
881 | /* | |
882 | * The driver established a maximum scatter-gather segment count | |
883 | * during probe that limits the number of sg elements in any | |
884 | * single scsi command. Just run through the seg_cnt and format | |
885 | * the bde's. | |
34b02dcd JS |
886 | * When using SLI-3 the driver will try to fit all the BDEs into |
887 | * the IOCB. If it can't then the BDEs get added to a BPL as it | |
888 | * does for SLI-2 mode. | |
dea3101e | 889 | */ |
34b02dcd | 890 | scsi_for_each_sg(scsi_cmnd, sgel, nseg, num_bde) { |
dea3101e | 891 | physaddr = sg_dma_address(sgel); |
34b02dcd | 892 | if (phba->sli_rev == 3 && |
e2a0a9d6 | 893 | !(phba->sli3_options & LPFC_SLI3_BG_ENABLED) && |
0f65ff68 | 894 | !(iocbq->iocb_flag & DSS_SECURITY_OP) && |
34b02dcd JS |
895 | nseg <= LPFC_EXT_DATA_BDE_COUNT) { |
896 | data_bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
897 | data_bde->tus.f.bdeSize = sg_dma_len(sgel); | |
898 | data_bde->addrLow = putPaddrLow(physaddr); | |
899 | data_bde->addrHigh = putPaddrHigh(physaddr); | |
900 | data_bde++; | |
901 | } else { | |
902 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
903 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
904 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
905 | bpl->addrLow = | |
906 | le32_to_cpu(putPaddrLow(physaddr)); | |
907 | bpl->addrHigh = | |
908 | le32_to_cpu(putPaddrHigh(physaddr)); | |
909 | bpl++; | |
910 | } | |
dea3101e | 911 | } |
c59fd9eb | 912 | } |
dea3101e JB |
913 | |
914 | /* | |
915 | * Finish initializing those IOCB fields that are dependent on the | |
34b02dcd JS |
916 | * scsi_cmnd request_buffer. Note that for SLI-2 the bdeSize is |
917 | * explicitly reinitialized and for SLI-3 the extended bde count is | |
918 | * explicitly reinitialized since all iocb memory resources are reused. | |
dea3101e | 919 | */ |
e2a0a9d6 | 920 | if (phba->sli_rev == 3 && |
0f65ff68 JS |
921 | !(phba->sli3_options & LPFC_SLI3_BG_ENABLED) && |
922 | !(iocbq->iocb_flag & DSS_SECURITY_OP)) { | |
34b02dcd JS |
923 | if (num_bde > LPFC_EXT_DATA_BDE_COUNT) { |
924 | /* | |
925 | * The extended IOCB format can only fit 3 BDE or a BPL. | |
926 | * This I/O has more than 3 BDE so the 1st data bde will | |
927 | * be a BPL that is filled in here. | |
928 | */ | |
929 | physaddr = lpfc_cmd->dma_handle; | |
930 | data_bde->tus.f.bdeFlags = BUFF_TYPE_BLP_64; | |
931 | data_bde->tus.f.bdeSize = (num_bde * | |
932 | sizeof(struct ulp_bde64)); | |
933 | physaddr += (sizeof(struct fcp_cmnd) + | |
934 | sizeof(struct fcp_rsp) + | |
935 | (2 * sizeof(struct ulp_bde64))); | |
936 | data_bde->addrHigh = putPaddrHigh(physaddr); | |
937 | data_bde->addrLow = putPaddrLow(physaddr); | |
25985edc | 938 | /* ebde count includes the response bde and data bpl */ |
34b02dcd JS |
939 | iocb_cmd->unsli3.fcp_ext.ebde_count = 2; |
940 | } else { | |
25985edc | 941 | /* ebde count includes the response bde and data bdes */ |
34b02dcd JS |
942 | iocb_cmd->unsli3.fcp_ext.ebde_count = (num_bde + 1); |
943 | } | |
944 | } else { | |
945 | iocb_cmd->un.fcpi64.bdl.bdeSize = | |
946 | ((num_bde + 2) * sizeof(struct ulp_bde64)); | |
0f65ff68 | 947 | iocb_cmd->unsli3.fcp_ext.ebde_count = (num_bde + 1); |
34b02dcd | 948 | } |
09372820 | 949 | fcp_cmnd->fcpDl = cpu_to_be32(scsi_bufflen(scsi_cmnd)); |
e2a0a9d6 JS |
950 | |
951 | /* | |
952 | * Due to difference in data length between DIF/non-DIF paths, | |
953 | * we need to set word 4 of IOCB here | |
954 | */ | |
a257bf90 | 955 | iocb_cmd->un.fcpi.fcpi_parm = scsi_bufflen(scsi_cmnd); |
e2a0a9d6 JS |
956 | return 0; |
957 | } | |
958 | ||
f9bb2da1 | 959 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 960 | |
4b160ae8 | 961 | /* Return BG_ERR_INIT if error injection is detected by Initiator */ |
9a6b09c0 | 962 | #define BG_ERR_INIT 0x1 |
4b160ae8 | 963 | /* Return BG_ERR_TGT if error injection is detected by Target */ |
9a6b09c0 | 964 | #define BG_ERR_TGT 0x2 |
4b160ae8 | 965 | /* Return BG_ERR_SWAP if swapping CSUM<-->CRC is required for error injection */ |
9a6b09c0 | 966 | #define BG_ERR_SWAP 0x10 |
4b160ae8 MG |
967 | /** |
968 | * Return BG_ERR_CHECK if disabling Guard/Ref/App checking is required for | |
969 | * error injection | |
970 | **/ | |
9a6b09c0 | 971 | #define BG_ERR_CHECK 0x20 |
acd6859b JS |
972 | |
973 | /** | |
974 | * lpfc_bg_err_inject - Determine if we should inject an error | |
975 | * @phba: The Hba for which this call is being executed. | |
f9bb2da1 JS |
976 | * @sc: The SCSI command to examine |
977 | * @reftag: (out) BlockGuard reference tag for transmitted data | |
978 | * @apptag: (out) BlockGuard application tag for transmitted data | |
979 | * @new_guard (in) Value to replace CRC with if needed | |
980 | * | |
9a6b09c0 | 981 | * Returns BG_ERR_* bit mask or 0 if request ignored |
acd6859b | 982 | **/ |
f9bb2da1 JS |
983 | static int |
984 | lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
985 | uint32_t *reftag, uint16_t *apptag, uint32_t new_guard) | |
986 | { | |
987 | struct scatterlist *sgpe; /* s/g prot entry */ | |
c490850a | 988 | struct lpfc_io_buf *lpfc_cmd = NULL; |
acd6859b | 989 | struct scsi_dif_tuple *src = NULL; |
4ac9b226 JS |
990 | struct lpfc_nodelist *ndlp; |
991 | struct lpfc_rport_data *rdata; | |
f9bb2da1 JS |
992 | uint32_t op = scsi_get_prot_op(sc); |
993 | uint32_t blksize; | |
994 | uint32_t numblks; | |
995 | sector_t lba; | |
996 | int rc = 0; | |
acd6859b | 997 | int blockoff = 0; |
f9bb2da1 JS |
998 | |
999 | if (op == SCSI_PROT_NORMAL) | |
1000 | return 0; | |
1001 | ||
acd6859b | 1002 | sgpe = scsi_prot_sglist(sc); |
f9bb2da1 | 1003 | lba = scsi_get_lba(sc); |
4ac9b226 JS |
1004 | |
1005 | /* First check if we need to match the LBA */ | |
f9bb2da1 JS |
1006 | if (phba->lpfc_injerr_lba != LPFC_INJERR_LBA_OFF) { |
1007 | blksize = lpfc_cmd_blksize(sc); | |
1008 | numblks = (scsi_bufflen(sc) + blksize - 1) / blksize; | |
1009 | ||
1010 | /* Make sure we have the right LBA if one is specified */ | |
1011 | if ((phba->lpfc_injerr_lba < lba) || | |
1012 | (phba->lpfc_injerr_lba >= (lba + numblks))) | |
1013 | return 0; | |
acd6859b JS |
1014 | if (sgpe) { |
1015 | blockoff = phba->lpfc_injerr_lba - lba; | |
1016 | numblks = sg_dma_len(sgpe) / | |
1017 | sizeof(struct scsi_dif_tuple); | |
1018 | if (numblks < blockoff) | |
1019 | blockoff = numblks; | |
acd6859b | 1020 | } |
f9bb2da1 JS |
1021 | } |
1022 | ||
4ac9b226 | 1023 | /* Next check if we need to match the remote NPortID or WWPN */ |
1ba981fd | 1024 | rdata = lpfc_rport_data_from_scsi_device(sc->device); |
4ac9b226 JS |
1025 | if (rdata && rdata->pnode) { |
1026 | ndlp = rdata->pnode; | |
1027 | ||
1028 | /* Make sure we have the right NPortID if one is specified */ | |
1029 | if (phba->lpfc_injerr_nportid && | |
1030 | (phba->lpfc_injerr_nportid != ndlp->nlp_DID)) | |
1031 | return 0; | |
1032 | ||
1033 | /* | |
1034 | * Make sure we have the right WWPN if one is specified. | |
1035 | * wwn[0] should be a non-zero NAA in a good WWPN. | |
1036 | */ | |
1037 | if (phba->lpfc_injerr_wwpn.u.wwn[0] && | |
1038 | (memcmp(&ndlp->nlp_portname, &phba->lpfc_injerr_wwpn, | |
1039 | sizeof(struct lpfc_name)) != 0)) | |
1040 | return 0; | |
1041 | } | |
1042 | ||
1043 | /* Setup a ptr to the protection data if the SCSI host provides it */ | |
1044 | if (sgpe) { | |
1045 | src = (struct scsi_dif_tuple *)sg_virt(sgpe); | |
1046 | src += blockoff; | |
c490850a | 1047 | lpfc_cmd = (struct lpfc_io_buf *)sc->host_scribble; |
4ac9b226 JS |
1048 | } |
1049 | ||
f9bb2da1 JS |
1050 | /* Should we change the Reference Tag */ |
1051 | if (reftag) { | |
acd6859b JS |
1052 | if (phba->lpfc_injerr_wref_cnt) { |
1053 | switch (op) { | |
1054 | case SCSI_PROT_WRITE_PASS: | |
9a6b09c0 JS |
1055 | if (src) { |
1056 | /* | |
1057 | * For WRITE_PASS, force the error | |
1058 | * to be sent on the wire. It should | |
1059 | * be detected by the Target. | |
1060 | * If blockoff != 0 error will be | |
1061 | * inserted in middle of the IO. | |
1062 | */ | |
acd6859b JS |
1063 | |
1064 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
1065 | "9076 BLKGRD: Injecting reftag error: " | |
1066 | "write lba x%lx + x%x oldrefTag x%x\n", | |
1067 | (unsigned long)lba, blockoff, | |
9a6b09c0 | 1068 | be32_to_cpu(src->ref_tag)); |
f9bb2da1 | 1069 | |
acd6859b | 1070 | /* |
9a6b09c0 JS |
1071 | * Save the old ref_tag so we can |
1072 | * restore it on completion. | |
acd6859b | 1073 | */ |
9a6b09c0 JS |
1074 | if (lpfc_cmd) { |
1075 | lpfc_cmd->prot_data_type = | |
1076 | LPFC_INJERR_REFTAG; | |
1077 | lpfc_cmd->prot_data_segment = | |
1078 | src; | |
1079 | lpfc_cmd->prot_data = | |
1080 | src->ref_tag; | |
1081 | } | |
1082 | src->ref_tag = cpu_to_be32(0xDEADBEEF); | |
acd6859b | 1083 | phba->lpfc_injerr_wref_cnt--; |
4ac9b226 JS |
1084 | if (phba->lpfc_injerr_wref_cnt == 0) { |
1085 | phba->lpfc_injerr_nportid = 0; | |
1086 | phba->lpfc_injerr_lba = | |
1087 | LPFC_INJERR_LBA_OFF; | |
1088 | memset(&phba->lpfc_injerr_wwpn, | |
1089 | 0, sizeof(struct lpfc_name)); | |
1090 | } | |
9a6b09c0 JS |
1091 | rc = BG_ERR_TGT | BG_ERR_CHECK; |
1092 | ||
acd6859b JS |
1093 | break; |
1094 | } | |
cd05c155 | 1095 | /* fall through */ |
9a6b09c0 | 1096 | case SCSI_PROT_WRITE_INSERT: |
acd6859b | 1097 | /* |
9a6b09c0 JS |
1098 | * For WRITE_INSERT, force the error |
1099 | * to be sent on the wire. It should be | |
1100 | * detected by the Target. | |
acd6859b | 1101 | */ |
9a6b09c0 | 1102 | /* DEADBEEF will be the reftag on the wire */ |
acd6859b JS |
1103 | *reftag = 0xDEADBEEF; |
1104 | phba->lpfc_injerr_wref_cnt--; | |
4ac9b226 JS |
1105 | if (phba->lpfc_injerr_wref_cnt == 0) { |
1106 | phba->lpfc_injerr_nportid = 0; | |
1107 | phba->lpfc_injerr_lba = | |
1108 | LPFC_INJERR_LBA_OFF; | |
1109 | memset(&phba->lpfc_injerr_wwpn, | |
1110 | 0, sizeof(struct lpfc_name)); | |
1111 | } | |
9a6b09c0 | 1112 | rc = BG_ERR_TGT | BG_ERR_CHECK; |
acd6859b JS |
1113 | |
1114 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
9a6b09c0 | 1115 | "9078 BLKGRD: Injecting reftag error: " |
acd6859b JS |
1116 | "write lba x%lx\n", (unsigned long)lba); |
1117 | break; | |
9a6b09c0 | 1118 | case SCSI_PROT_WRITE_STRIP: |
acd6859b | 1119 | /* |
9a6b09c0 JS |
1120 | * For WRITE_STRIP and WRITE_PASS, |
1121 | * force the error on data | |
1122 | * being copied from SLI-Host to SLI-Port. | |
acd6859b | 1123 | */ |
f9bb2da1 JS |
1124 | *reftag = 0xDEADBEEF; |
1125 | phba->lpfc_injerr_wref_cnt--; | |
4ac9b226 JS |
1126 | if (phba->lpfc_injerr_wref_cnt == 0) { |
1127 | phba->lpfc_injerr_nportid = 0; | |
1128 | phba->lpfc_injerr_lba = | |
1129 | LPFC_INJERR_LBA_OFF; | |
1130 | memset(&phba->lpfc_injerr_wwpn, | |
1131 | 0, sizeof(struct lpfc_name)); | |
1132 | } | |
9a6b09c0 | 1133 | rc = BG_ERR_INIT; |
f9bb2da1 JS |
1134 | |
1135 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
9a6b09c0 | 1136 | "9077 BLKGRD: Injecting reftag error: " |
f9bb2da1 | 1137 | "write lba x%lx\n", (unsigned long)lba); |
acd6859b | 1138 | break; |
f9bb2da1 | 1139 | } |
acd6859b JS |
1140 | } |
1141 | if (phba->lpfc_injerr_rref_cnt) { | |
1142 | switch (op) { | |
1143 | case SCSI_PROT_READ_INSERT: | |
acd6859b JS |
1144 | case SCSI_PROT_READ_STRIP: |
1145 | case SCSI_PROT_READ_PASS: | |
1146 | /* | |
1147 | * For READ_STRIP and READ_PASS, force the | |
1148 | * error on data being read off the wire. It | |
1149 | * should force an IO error to the driver. | |
1150 | */ | |
f9bb2da1 JS |
1151 | *reftag = 0xDEADBEEF; |
1152 | phba->lpfc_injerr_rref_cnt--; | |
4ac9b226 JS |
1153 | if (phba->lpfc_injerr_rref_cnt == 0) { |
1154 | phba->lpfc_injerr_nportid = 0; | |
1155 | phba->lpfc_injerr_lba = | |
1156 | LPFC_INJERR_LBA_OFF; | |
1157 | memset(&phba->lpfc_injerr_wwpn, | |
1158 | 0, sizeof(struct lpfc_name)); | |
1159 | } | |
acd6859b | 1160 | rc = BG_ERR_INIT; |
f9bb2da1 JS |
1161 | |
1162 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
acd6859b | 1163 | "9079 BLKGRD: Injecting reftag error: " |
f9bb2da1 | 1164 | "read lba x%lx\n", (unsigned long)lba); |
acd6859b | 1165 | break; |
f9bb2da1 JS |
1166 | } |
1167 | } | |
1168 | } | |
1169 | ||
1170 | /* Should we change the Application Tag */ | |
1171 | if (apptag) { | |
acd6859b JS |
1172 | if (phba->lpfc_injerr_wapp_cnt) { |
1173 | switch (op) { | |
1174 | case SCSI_PROT_WRITE_PASS: | |
4ac9b226 | 1175 | if (src) { |
9a6b09c0 JS |
1176 | /* |
1177 | * For WRITE_PASS, force the error | |
1178 | * to be sent on the wire. It should | |
1179 | * be detected by the Target. | |
1180 | * If blockoff != 0 error will be | |
1181 | * inserted in middle of the IO. | |
1182 | */ | |
1183 | ||
acd6859b JS |
1184 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
1185 | "9080 BLKGRD: Injecting apptag error: " | |
1186 | "write lba x%lx + x%x oldappTag x%x\n", | |
1187 | (unsigned long)lba, blockoff, | |
9a6b09c0 | 1188 | be16_to_cpu(src->app_tag)); |
acd6859b JS |
1189 | |
1190 | /* | |
9a6b09c0 JS |
1191 | * Save the old app_tag so we can |
1192 | * restore it on completion. | |
acd6859b | 1193 | */ |
9a6b09c0 JS |
1194 | if (lpfc_cmd) { |
1195 | lpfc_cmd->prot_data_type = | |
1196 | LPFC_INJERR_APPTAG; | |
1197 | lpfc_cmd->prot_data_segment = | |
1198 | src; | |
1199 | lpfc_cmd->prot_data = | |
1200 | src->app_tag; | |
1201 | } | |
1202 | src->app_tag = cpu_to_be16(0xDEAD); | |
acd6859b | 1203 | phba->lpfc_injerr_wapp_cnt--; |
4ac9b226 JS |
1204 | if (phba->lpfc_injerr_wapp_cnt == 0) { |
1205 | phba->lpfc_injerr_nportid = 0; | |
1206 | phba->lpfc_injerr_lba = | |
1207 | LPFC_INJERR_LBA_OFF; | |
1208 | memset(&phba->lpfc_injerr_wwpn, | |
1209 | 0, sizeof(struct lpfc_name)); | |
1210 | } | |
9a6b09c0 | 1211 | rc = BG_ERR_TGT | BG_ERR_CHECK; |
acd6859b JS |
1212 | break; |
1213 | } | |
cd05c155 | 1214 | /* fall through */ |
9a6b09c0 | 1215 | case SCSI_PROT_WRITE_INSERT: |
acd6859b | 1216 | /* |
9a6b09c0 JS |
1217 | * For WRITE_INSERT, force the |
1218 | * error to be sent on the wire. It should be | |
1219 | * detected by the Target. | |
acd6859b | 1220 | */ |
9a6b09c0 | 1221 | /* DEAD will be the apptag on the wire */ |
acd6859b JS |
1222 | *apptag = 0xDEAD; |
1223 | phba->lpfc_injerr_wapp_cnt--; | |
4ac9b226 JS |
1224 | if (phba->lpfc_injerr_wapp_cnt == 0) { |
1225 | phba->lpfc_injerr_nportid = 0; | |
1226 | phba->lpfc_injerr_lba = | |
1227 | LPFC_INJERR_LBA_OFF; | |
1228 | memset(&phba->lpfc_injerr_wwpn, | |
1229 | 0, sizeof(struct lpfc_name)); | |
1230 | } | |
9a6b09c0 | 1231 | rc = BG_ERR_TGT | BG_ERR_CHECK; |
f9bb2da1 | 1232 | |
acd6859b | 1233 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
9a6b09c0 | 1234 | "0813 BLKGRD: Injecting apptag error: " |
acd6859b JS |
1235 | "write lba x%lx\n", (unsigned long)lba); |
1236 | break; | |
9a6b09c0 | 1237 | case SCSI_PROT_WRITE_STRIP: |
acd6859b | 1238 | /* |
9a6b09c0 JS |
1239 | * For WRITE_STRIP and WRITE_PASS, |
1240 | * force the error on data | |
1241 | * being copied from SLI-Host to SLI-Port. | |
acd6859b | 1242 | */ |
f9bb2da1 JS |
1243 | *apptag = 0xDEAD; |
1244 | phba->lpfc_injerr_wapp_cnt--; | |
4ac9b226 JS |
1245 | if (phba->lpfc_injerr_wapp_cnt == 0) { |
1246 | phba->lpfc_injerr_nportid = 0; | |
1247 | phba->lpfc_injerr_lba = | |
1248 | LPFC_INJERR_LBA_OFF; | |
1249 | memset(&phba->lpfc_injerr_wwpn, | |
1250 | 0, sizeof(struct lpfc_name)); | |
1251 | } | |
9a6b09c0 | 1252 | rc = BG_ERR_INIT; |
f9bb2da1 JS |
1253 | |
1254 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
9a6b09c0 | 1255 | "0812 BLKGRD: Injecting apptag error: " |
f9bb2da1 | 1256 | "write lba x%lx\n", (unsigned long)lba); |
acd6859b | 1257 | break; |
f9bb2da1 | 1258 | } |
acd6859b JS |
1259 | } |
1260 | if (phba->lpfc_injerr_rapp_cnt) { | |
1261 | switch (op) { | |
1262 | case SCSI_PROT_READ_INSERT: | |
acd6859b JS |
1263 | case SCSI_PROT_READ_STRIP: |
1264 | case SCSI_PROT_READ_PASS: | |
1265 | /* | |
1266 | * For READ_STRIP and READ_PASS, force the | |
1267 | * error on data being read off the wire. It | |
1268 | * should force an IO error to the driver. | |
1269 | */ | |
f9bb2da1 JS |
1270 | *apptag = 0xDEAD; |
1271 | phba->lpfc_injerr_rapp_cnt--; | |
4ac9b226 JS |
1272 | if (phba->lpfc_injerr_rapp_cnt == 0) { |
1273 | phba->lpfc_injerr_nportid = 0; | |
1274 | phba->lpfc_injerr_lba = | |
1275 | LPFC_INJERR_LBA_OFF; | |
1276 | memset(&phba->lpfc_injerr_wwpn, | |
1277 | 0, sizeof(struct lpfc_name)); | |
1278 | } | |
acd6859b | 1279 | rc = BG_ERR_INIT; |
f9bb2da1 JS |
1280 | |
1281 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
acd6859b | 1282 | "0814 BLKGRD: Injecting apptag error: " |
f9bb2da1 | 1283 | "read lba x%lx\n", (unsigned long)lba); |
acd6859b | 1284 | break; |
f9bb2da1 JS |
1285 | } |
1286 | } | |
1287 | } | |
1288 | ||
acd6859b | 1289 | |
f9bb2da1 | 1290 | /* Should we change the Guard Tag */ |
acd6859b JS |
1291 | if (new_guard) { |
1292 | if (phba->lpfc_injerr_wgrd_cnt) { | |
1293 | switch (op) { | |
1294 | case SCSI_PROT_WRITE_PASS: | |
9a6b09c0 | 1295 | rc = BG_ERR_CHECK; |
cd05c155 | 1296 | /* fall through */ |
9a6b09c0 JS |
1297 | |
1298 | case SCSI_PROT_WRITE_INSERT: | |
acd6859b | 1299 | /* |
9a6b09c0 JS |
1300 | * For WRITE_INSERT, force the |
1301 | * error to be sent on the wire. It should be | |
1302 | * detected by the Target. | |
acd6859b JS |
1303 | */ |
1304 | phba->lpfc_injerr_wgrd_cnt--; | |
4ac9b226 JS |
1305 | if (phba->lpfc_injerr_wgrd_cnt == 0) { |
1306 | phba->lpfc_injerr_nportid = 0; | |
1307 | phba->lpfc_injerr_lba = | |
1308 | LPFC_INJERR_LBA_OFF; | |
1309 | memset(&phba->lpfc_injerr_wwpn, | |
1310 | 0, sizeof(struct lpfc_name)); | |
1311 | } | |
f9bb2da1 | 1312 | |
9a6b09c0 | 1313 | rc |= BG_ERR_TGT | BG_ERR_SWAP; |
acd6859b | 1314 | /* Signals the caller to swap CRC->CSUM */ |
f9bb2da1 | 1315 | |
acd6859b | 1316 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
9a6b09c0 | 1317 | "0817 BLKGRD: Injecting guard error: " |
acd6859b JS |
1318 | "write lba x%lx\n", (unsigned long)lba); |
1319 | break; | |
9a6b09c0 | 1320 | case SCSI_PROT_WRITE_STRIP: |
acd6859b | 1321 | /* |
9a6b09c0 JS |
1322 | * For WRITE_STRIP and WRITE_PASS, |
1323 | * force the error on data | |
1324 | * being copied from SLI-Host to SLI-Port. | |
acd6859b JS |
1325 | */ |
1326 | phba->lpfc_injerr_wgrd_cnt--; | |
4ac9b226 JS |
1327 | if (phba->lpfc_injerr_wgrd_cnt == 0) { |
1328 | phba->lpfc_injerr_nportid = 0; | |
1329 | phba->lpfc_injerr_lba = | |
1330 | LPFC_INJERR_LBA_OFF; | |
1331 | memset(&phba->lpfc_injerr_wwpn, | |
1332 | 0, sizeof(struct lpfc_name)); | |
1333 | } | |
f9bb2da1 | 1334 | |
9a6b09c0 | 1335 | rc = BG_ERR_INIT | BG_ERR_SWAP; |
acd6859b JS |
1336 | /* Signals the caller to swap CRC->CSUM */ |
1337 | ||
1338 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
9a6b09c0 | 1339 | "0816 BLKGRD: Injecting guard error: " |
acd6859b JS |
1340 | "write lba x%lx\n", (unsigned long)lba); |
1341 | break; | |
1342 | } | |
1343 | } | |
1344 | if (phba->lpfc_injerr_rgrd_cnt) { | |
1345 | switch (op) { | |
1346 | case SCSI_PROT_READ_INSERT: | |
acd6859b JS |
1347 | case SCSI_PROT_READ_STRIP: |
1348 | case SCSI_PROT_READ_PASS: | |
1349 | /* | |
1350 | * For READ_STRIP and READ_PASS, force the | |
1351 | * error on data being read off the wire. It | |
1352 | * should force an IO error to the driver. | |
1353 | */ | |
acd6859b | 1354 | phba->lpfc_injerr_rgrd_cnt--; |
4ac9b226 JS |
1355 | if (phba->lpfc_injerr_rgrd_cnt == 0) { |
1356 | phba->lpfc_injerr_nportid = 0; | |
1357 | phba->lpfc_injerr_lba = | |
1358 | LPFC_INJERR_LBA_OFF; | |
1359 | memset(&phba->lpfc_injerr_wwpn, | |
1360 | 0, sizeof(struct lpfc_name)); | |
1361 | } | |
acd6859b | 1362 | |
9a6b09c0 | 1363 | rc = BG_ERR_INIT | BG_ERR_SWAP; |
acd6859b JS |
1364 | /* Signals the caller to swap CRC->CSUM */ |
1365 | ||
1366 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
1367 | "0818 BLKGRD: Injecting guard error: " | |
1368 | "read lba x%lx\n", (unsigned long)lba); | |
1369 | } | |
f9bb2da1 JS |
1370 | } |
1371 | } | |
acd6859b | 1372 | |
f9bb2da1 JS |
1373 | return rc; |
1374 | } | |
1375 | #endif | |
1376 | ||
acd6859b JS |
1377 | /** |
1378 | * lpfc_sc_to_bg_opcodes - Determine the BlockGuard opcodes to be used with | |
1379 | * the specified SCSI command. | |
1380 | * @phba: The Hba for which this call is being executed. | |
6c8eea54 JS |
1381 | * @sc: The SCSI command to examine |
1382 | * @txopt: (out) BlockGuard operation for transmitted data | |
1383 | * @rxopt: (out) BlockGuard operation for received data | |
1384 | * | |
1385 | * Returns: zero on success; non-zero if tx and/or rx op cannot be determined | |
1386 | * | |
acd6859b | 1387 | **/ |
e2a0a9d6 | 1388 | static int |
6c8eea54 JS |
1389 | lpfc_sc_to_bg_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc, |
1390 | uint8_t *txop, uint8_t *rxop) | |
e2a0a9d6 | 1391 | { |
6c8eea54 | 1392 | uint8_t ret = 0; |
e2a0a9d6 | 1393 | |
9c6aa9d7 | 1394 | if (lpfc_cmd_guard_csum(sc)) { |
e2a0a9d6 JS |
1395 | switch (scsi_get_prot_op(sc)) { |
1396 | case SCSI_PROT_READ_INSERT: | |
1397 | case SCSI_PROT_WRITE_STRIP: | |
6c8eea54 | 1398 | *rxop = BG_OP_IN_NODIF_OUT_CSUM; |
4ac9b226 | 1399 | *txop = BG_OP_IN_CSUM_OUT_NODIF; |
e2a0a9d6 JS |
1400 | break; |
1401 | ||
1402 | case SCSI_PROT_READ_STRIP: | |
1403 | case SCSI_PROT_WRITE_INSERT: | |
6c8eea54 | 1404 | *rxop = BG_OP_IN_CRC_OUT_NODIF; |
4ac9b226 | 1405 | *txop = BG_OP_IN_NODIF_OUT_CRC; |
e2a0a9d6 JS |
1406 | break; |
1407 | ||
c6af4042 MP |
1408 | case SCSI_PROT_READ_PASS: |
1409 | case SCSI_PROT_WRITE_PASS: | |
6c8eea54 | 1410 | *rxop = BG_OP_IN_CRC_OUT_CSUM; |
4ac9b226 | 1411 | *txop = BG_OP_IN_CSUM_OUT_CRC; |
e2a0a9d6 JS |
1412 | break; |
1413 | ||
e2a0a9d6 JS |
1414 | case SCSI_PROT_NORMAL: |
1415 | default: | |
6a9c52cf | 1416 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
7c56b9fd JS |
1417 | "9063 BLKGRD: Bad op/guard:%d/IP combination\n", |
1418 | scsi_get_prot_op(sc)); | |
6c8eea54 | 1419 | ret = 1; |
e2a0a9d6 JS |
1420 | break; |
1421 | ||
1422 | } | |
7c56b9fd | 1423 | } else { |
e2a0a9d6 JS |
1424 | switch (scsi_get_prot_op(sc)) { |
1425 | case SCSI_PROT_READ_STRIP: | |
1426 | case SCSI_PROT_WRITE_INSERT: | |
6c8eea54 | 1427 | *rxop = BG_OP_IN_CRC_OUT_NODIF; |
4ac9b226 | 1428 | *txop = BG_OP_IN_NODIF_OUT_CRC; |
e2a0a9d6 JS |
1429 | break; |
1430 | ||
1431 | case SCSI_PROT_READ_PASS: | |
1432 | case SCSI_PROT_WRITE_PASS: | |
6c8eea54 | 1433 | *rxop = BG_OP_IN_CRC_OUT_CRC; |
4ac9b226 | 1434 | *txop = BG_OP_IN_CRC_OUT_CRC; |
e2a0a9d6 JS |
1435 | break; |
1436 | ||
e2a0a9d6 JS |
1437 | case SCSI_PROT_READ_INSERT: |
1438 | case SCSI_PROT_WRITE_STRIP: | |
7c56b9fd | 1439 | *rxop = BG_OP_IN_NODIF_OUT_CRC; |
4ac9b226 | 1440 | *txop = BG_OP_IN_CRC_OUT_NODIF; |
7c56b9fd JS |
1441 | break; |
1442 | ||
e2a0a9d6 JS |
1443 | case SCSI_PROT_NORMAL: |
1444 | default: | |
6a9c52cf | 1445 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
7c56b9fd JS |
1446 | "9075 BLKGRD: Bad op/guard:%d/CRC combination\n", |
1447 | scsi_get_prot_op(sc)); | |
6c8eea54 | 1448 | ret = 1; |
e2a0a9d6 JS |
1449 | break; |
1450 | } | |
e2a0a9d6 JS |
1451 | } |
1452 | ||
6c8eea54 | 1453 | return ret; |
e2a0a9d6 JS |
1454 | } |
1455 | ||
acd6859b JS |
1456 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
1457 | /** | |
1458 | * lpfc_bg_err_opcodes - reDetermine the BlockGuard opcodes to be used with | |
1459 | * the specified SCSI command in order to force a guard tag error. | |
1460 | * @phba: The Hba for which this call is being executed. | |
1461 | * @sc: The SCSI command to examine | |
1462 | * @txopt: (out) BlockGuard operation for transmitted data | |
1463 | * @rxopt: (out) BlockGuard operation for received data | |
1464 | * | |
1465 | * Returns: zero on success; non-zero if tx and/or rx op cannot be determined | |
1466 | * | |
1467 | **/ | |
1468 | static int | |
1469 | lpfc_bg_err_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
1470 | uint8_t *txop, uint8_t *rxop) | |
1471 | { | |
acd6859b JS |
1472 | uint8_t ret = 0; |
1473 | ||
9c6aa9d7 | 1474 | if (lpfc_cmd_guard_csum(sc)) { |
acd6859b JS |
1475 | switch (scsi_get_prot_op(sc)) { |
1476 | case SCSI_PROT_READ_INSERT: | |
1477 | case SCSI_PROT_WRITE_STRIP: | |
acd6859b | 1478 | *rxop = BG_OP_IN_NODIF_OUT_CRC; |
4ac9b226 | 1479 | *txop = BG_OP_IN_CRC_OUT_NODIF; |
acd6859b JS |
1480 | break; |
1481 | ||
1482 | case SCSI_PROT_READ_STRIP: | |
1483 | case SCSI_PROT_WRITE_INSERT: | |
acd6859b | 1484 | *rxop = BG_OP_IN_CSUM_OUT_NODIF; |
4ac9b226 | 1485 | *txop = BG_OP_IN_NODIF_OUT_CSUM; |
acd6859b JS |
1486 | break; |
1487 | ||
1488 | case SCSI_PROT_READ_PASS: | |
1489 | case SCSI_PROT_WRITE_PASS: | |
4ac9b226 | 1490 | *rxop = BG_OP_IN_CSUM_OUT_CRC; |
9a6b09c0 | 1491 | *txop = BG_OP_IN_CRC_OUT_CSUM; |
acd6859b JS |
1492 | break; |
1493 | ||
1494 | case SCSI_PROT_NORMAL: | |
1495 | default: | |
1496 | break; | |
1497 | ||
1498 | } | |
1499 | } else { | |
1500 | switch (scsi_get_prot_op(sc)) { | |
1501 | case SCSI_PROT_READ_STRIP: | |
1502 | case SCSI_PROT_WRITE_INSERT: | |
acd6859b | 1503 | *rxop = BG_OP_IN_CSUM_OUT_NODIF; |
4ac9b226 | 1504 | *txop = BG_OP_IN_NODIF_OUT_CSUM; |
acd6859b JS |
1505 | break; |
1506 | ||
1507 | case SCSI_PROT_READ_PASS: | |
1508 | case SCSI_PROT_WRITE_PASS: | |
4ac9b226 | 1509 | *rxop = BG_OP_IN_CSUM_OUT_CSUM; |
9a6b09c0 | 1510 | *txop = BG_OP_IN_CSUM_OUT_CSUM; |
acd6859b JS |
1511 | break; |
1512 | ||
1513 | case SCSI_PROT_READ_INSERT: | |
1514 | case SCSI_PROT_WRITE_STRIP: | |
acd6859b | 1515 | *rxop = BG_OP_IN_NODIF_OUT_CSUM; |
4ac9b226 | 1516 | *txop = BG_OP_IN_CSUM_OUT_NODIF; |
acd6859b JS |
1517 | break; |
1518 | ||
1519 | case SCSI_PROT_NORMAL: | |
1520 | default: | |
1521 | break; | |
1522 | } | |
1523 | } | |
1524 | ||
1525 | return ret; | |
1526 | } | |
1527 | #endif | |
1528 | ||
1529 | /** | |
1530 | * lpfc_bg_setup_bpl - Setup BlockGuard BPL with no protection data | |
1531 | * @phba: The Hba for which this call is being executed. | |
1532 | * @sc: pointer to scsi command we're working on | |
1533 | * @bpl: pointer to buffer list for protection groups | |
1534 | * @datacnt: number of segments of data that have been dma mapped | |
1535 | * | |
1536 | * This function sets up BPL buffer list for protection groups of | |
e2a0a9d6 JS |
1537 | * type LPFC_PG_TYPE_NO_DIF |
1538 | * | |
1539 | * This is usually used when the HBA is instructed to generate | |
1540 | * DIFs and insert them into data stream (or strip DIF from | |
1541 | * incoming data stream) | |
1542 | * | |
1543 | * The buffer list consists of just one protection group described | |
1544 | * below: | |
1545 | * +-------------------------+ | |
6c8eea54 JS |
1546 | * start of prot group --> | PDE_5 | |
1547 | * +-------------------------+ | |
1548 | * | PDE_6 | | |
e2a0a9d6 JS |
1549 | * +-------------------------+ |
1550 | * | Data BDE | | |
1551 | * +-------------------------+ | |
1552 | * |more Data BDE's ... (opt)| | |
1553 | * +-------------------------+ | |
1554 | * | |
e2a0a9d6 JS |
1555 | * |
1556 | * Note: Data s/g buffers have been dma mapped | |
acd6859b JS |
1557 | * |
1558 | * Returns the number of BDEs added to the BPL. | |
1559 | **/ | |
e2a0a9d6 JS |
1560 | static int |
1561 | lpfc_bg_setup_bpl(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
1562 | struct ulp_bde64 *bpl, int datasegcnt) | |
1563 | { | |
1564 | struct scatterlist *sgde = NULL; /* s/g data entry */ | |
6c8eea54 JS |
1565 | struct lpfc_pde5 *pde5 = NULL; |
1566 | struct lpfc_pde6 *pde6 = NULL; | |
e2a0a9d6 | 1567 | dma_addr_t physaddr; |
6c8eea54 | 1568 | int i = 0, num_bde = 0, status; |
e2a0a9d6 | 1569 | int datadir = sc->sc_data_direction; |
0829a19a | 1570 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 1571 | uint32_t rc; |
0829a19a | 1572 | #endif |
acd6859b | 1573 | uint32_t checking = 1; |
e2a0a9d6 | 1574 | uint32_t reftag; |
6c8eea54 | 1575 | uint8_t txop, rxop; |
e2a0a9d6 | 1576 | |
6c8eea54 JS |
1577 | status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop); |
1578 | if (status) | |
e2a0a9d6 JS |
1579 | goto out; |
1580 | ||
6c8eea54 | 1581 | /* extract some info from the scsi command for pde*/ |
acd6859b | 1582 | reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */ |
e2a0a9d6 | 1583 | |
f9bb2da1 | 1584 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
4ac9b226 | 1585 | rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); |
acd6859b | 1586 | if (rc) { |
9a6b09c0 | 1587 | if (rc & BG_ERR_SWAP) |
acd6859b | 1588 | lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); |
9a6b09c0 | 1589 | if (rc & BG_ERR_CHECK) |
acd6859b JS |
1590 | checking = 0; |
1591 | } | |
f9bb2da1 JS |
1592 | #endif |
1593 | ||
6c8eea54 JS |
1594 | /* setup PDE5 with what we have */ |
1595 | pde5 = (struct lpfc_pde5 *) bpl; | |
1596 | memset(pde5, 0, sizeof(struct lpfc_pde5)); | |
1597 | bf_set(pde5_type, pde5, LPFC_PDE5_DESCRIPTOR); | |
6c8eea54 | 1598 | |
bc73905a | 1599 | /* Endianness conversion if necessary for PDE5 */ |
589a52d6 | 1600 | pde5->word0 = cpu_to_le32(pde5->word0); |
7c56b9fd | 1601 | pde5->reftag = cpu_to_le32(reftag); |
589a52d6 | 1602 | |
6c8eea54 JS |
1603 | /* advance bpl and increment bde count */ |
1604 | num_bde++; | |
1605 | bpl++; | |
1606 | pde6 = (struct lpfc_pde6 *) bpl; | |
1607 | ||
1608 | /* setup PDE6 with the rest of the info */ | |
1609 | memset(pde6, 0, sizeof(struct lpfc_pde6)); | |
1610 | bf_set(pde6_type, pde6, LPFC_PDE6_DESCRIPTOR); | |
1611 | bf_set(pde6_optx, pde6, txop); | |
1612 | bf_set(pde6_oprx, pde6, rxop); | |
a6887e28 JS |
1613 | |
1614 | /* | |
1615 | * We only need to check the data on READs, for WRITEs | |
1616 | * protection data is automatically generated, not checked. | |
1617 | */ | |
6c8eea54 | 1618 | if (datadir == DMA_FROM_DEVICE) { |
9c6aa9d7 | 1619 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_GUARD)) |
a6887e28 JS |
1620 | bf_set(pde6_ce, pde6, checking); |
1621 | else | |
1622 | bf_set(pde6_ce, pde6, 0); | |
1623 | ||
9c6aa9d7 | 1624 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_REF)) |
a6887e28 JS |
1625 | bf_set(pde6_re, pde6, checking); |
1626 | else | |
1627 | bf_set(pde6_re, pde6, 0); | |
6c8eea54 JS |
1628 | } |
1629 | bf_set(pde6_ai, pde6, 1); | |
7c56b9fd JS |
1630 | bf_set(pde6_ae, pde6, 0); |
1631 | bf_set(pde6_apptagval, pde6, 0); | |
e2a0a9d6 | 1632 | |
bc73905a | 1633 | /* Endianness conversion if necessary for PDE6 */ |
589a52d6 JS |
1634 | pde6->word0 = cpu_to_le32(pde6->word0); |
1635 | pde6->word1 = cpu_to_le32(pde6->word1); | |
1636 | pde6->word2 = cpu_to_le32(pde6->word2); | |
1637 | ||
6c8eea54 | 1638 | /* advance bpl and increment bde count */ |
e2a0a9d6 JS |
1639 | num_bde++; |
1640 | bpl++; | |
1641 | ||
1642 | /* assumption: caller has already run dma_map_sg on command data */ | |
1643 | scsi_for_each_sg(sc, sgde, datasegcnt, i) { | |
1644 | physaddr = sg_dma_address(sgde); | |
1645 | bpl->addrLow = le32_to_cpu(putPaddrLow(physaddr)); | |
1646 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(physaddr)); | |
1647 | bpl->tus.f.bdeSize = sg_dma_len(sgde); | |
1648 | if (datadir == DMA_TO_DEVICE) | |
1649 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
1650 | else | |
1651 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
1652 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
1653 | bpl++; | |
1654 | num_bde++; | |
1655 | } | |
1656 | ||
1657 | out: | |
1658 | return num_bde; | |
1659 | } | |
1660 | ||
acd6859b JS |
1661 | /** |
1662 | * lpfc_bg_setup_bpl_prot - Setup BlockGuard BPL with protection data | |
1663 | * @phba: The Hba for which this call is being executed. | |
1664 | * @sc: pointer to scsi command we're working on | |
1665 | * @bpl: pointer to buffer list for protection groups | |
1666 | * @datacnt: number of segments of data that have been dma mapped | |
1667 | * @protcnt: number of segment of protection data that have been dma mapped | |
1668 | * | |
1669 | * This function sets up BPL buffer list for protection groups of | |
1670 | * type LPFC_PG_TYPE_DIF | |
e2a0a9d6 JS |
1671 | * |
1672 | * This is usually used when DIFs are in their own buffers, | |
1673 | * separate from the data. The HBA can then by instructed | |
1674 | * to place the DIFs in the outgoing stream. For read operations, | |
1675 | * The HBA could extract the DIFs and place it in DIF buffers. | |
1676 | * | |
1677 | * The buffer list for this type consists of one or more of the | |
1678 | * protection groups described below: | |
1679 | * +-------------------------+ | |
6c8eea54 | 1680 | * start of first prot group --> | PDE_5 | |
e2a0a9d6 | 1681 | * +-------------------------+ |
6c8eea54 JS |
1682 | * | PDE_6 | |
1683 | * +-------------------------+ | |
1684 | * | PDE_7 (Prot BDE) | | |
e2a0a9d6 JS |
1685 | * +-------------------------+ |
1686 | * | Data BDE | | |
1687 | * +-------------------------+ | |
1688 | * |more Data BDE's ... (opt)| | |
1689 | * +-------------------------+ | |
6c8eea54 | 1690 | * start of new prot group --> | PDE_5 | |
e2a0a9d6 JS |
1691 | * +-------------------------+ |
1692 | * | ... | | |
1693 | * +-------------------------+ | |
1694 | * | |
e2a0a9d6 JS |
1695 | * Note: It is assumed that both data and protection s/g buffers have been |
1696 | * mapped for DMA | |
acd6859b JS |
1697 | * |
1698 | * Returns the number of BDEs added to the BPL. | |
1699 | **/ | |
e2a0a9d6 JS |
1700 | static int |
1701 | lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
1702 | struct ulp_bde64 *bpl, int datacnt, int protcnt) | |
1703 | { | |
1704 | struct scatterlist *sgde = NULL; /* s/g data entry */ | |
1705 | struct scatterlist *sgpe = NULL; /* s/g prot entry */ | |
6c8eea54 JS |
1706 | struct lpfc_pde5 *pde5 = NULL; |
1707 | struct lpfc_pde6 *pde6 = NULL; | |
7f86059a | 1708 | struct lpfc_pde7 *pde7 = NULL; |
e2a0a9d6 JS |
1709 | dma_addr_t dataphysaddr, protphysaddr; |
1710 | unsigned short curr_data = 0, curr_prot = 0; | |
7f86059a JS |
1711 | unsigned int split_offset; |
1712 | unsigned int protgroup_len, protgroup_offset = 0, protgroup_remainder; | |
e2a0a9d6 JS |
1713 | unsigned int protgrp_blks, protgrp_bytes; |
1714 | unsigned int remainder, subtotal; | |
6c8eea54 | 1715 | int status; |
e2a0a9d6 JS |
1716 | int datadir = sc->sc_data_direction; |
1717 | unsigned char pgdone = 0, alldone = 0; | |
1718 | unsigned blksize; | |
0829a19a | 1719 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 1720 | uint32_t rc; |
0829a19a | 1721 | #endif |
acd6859b | 1722 | uint32_t checking = 1; |
e2a0a9d6 | 1723 | uint32_t reftag; |
6c8eea54 | 1724 | uint8_t txop, rxop; |
e2a0a9d6 JS |
1725 | int num_bde = 0; |
1726 | ||
1727 | sgpe = scsi_prot_sglist(sc); | |
1728 | sgde = scsi_sglist(sc); | |
1729 | ||
1730 | if (!sgpe || !sgde) { | |
1731 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, | |
32350664 | 1732 | "9020 Invalid s/g entry: data=x%px prot=x%px\n", |
acd6859b JS |
1733 | sgpe, sgde); |
1734 | return 0; | |
1735 | } | |
1736 | ||
1737 | status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop); | |
1738 | if (status) | |
1739 | goto out; | |
1740 | ||
1741 | /* extract some info from the scsi command */ | |
1742 | blksize = lpfc_cmd_blksize(sc); | |
1743 | reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */ | |
1744 | ||
1745 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS | |
4ac9b226 | 1746 | rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); |
acd6859b | 1747 | if (rc) { |
9a6b09c0 | 1748 | if (rc & BG_ERR_SWAP) |
acd6859b | 1749 | lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); |
9a6b09c0 | 1750 | if (rc & BG_ERR_CHECK) |
acd6859b JS |
1751 | checking = 0; |
1752 | } | |
1753 | #endif | |
1754 | ||
1755 | split_offset = 0; | |
1756 | do { | |
96f7077f JS |
1757 | /* Check to see if we ran out of space */ |
1758 | if (num_bde >= (phba->cfg_total_seg_cnt - 2)) | |
1759 | return num_bde + 3; | |
1760 | ||
acd6859b JS |
1761 | /* setup PDE5 with what we have */ |
1762 | pde5 = (struct lpfc_pde5 *) bpl; | |
1763 | memset(pde5, 0, sizeof(struct lpfc_pde5)); | |
1764 | bf_set(pde5_type, pde5, LPFC_PDE5_DESCRIPTOR); | |
1765 | ||
1766 | /* Endianness conversion if necessary for PDE5 */ | |
1767 | pde5->word0 = cpu_to_le32(pde5->word0); | |
1768 | pde5->reftag = cpu_to_le32(reftag); | |
1769 | ||
1770 | /* advance bpl and increment bde count */ | |
1771 | num_bde++; | |
1772 | bpl++; | |
1773 | pde6 = (struct lpfc_pde6 *) bpl; | |
1774 | ||
1775 | /* setup PDE6 with the rest of the info */ | |
1776 | memset(pde6, 0, sizeof(struct lpfc_pde6)); | |
1777 | bf_set(pde6_type, pde6, LPFC_PDE6_DESCRIPTOR); | |
1778 | bf_set(pde6_optx, pde6, txop); | |
1779 | bf_set(pde6_oprx, pde6, rxop); | |
a6887e28 | 1780 | |
9c6aa9d7 | 1781 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_GUARD)) |
a6887e28 JS |
1782 | bf_set(pde6_ce, pde6, checking); |
1783 | else | |
1784 | bf_set(pde6_ce, pde6, 0); | |
1785 | ||
9c6aa9d7 | 1786 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_REF)) |
a6887e28 JS |
1787 | bf_set(pde6_re, pde6, checking); |
1788 | else | |
1789 | bf_set(pde6_re, pde6, 0); | |
1790 | ||
acd6859b JS |
1791 | bf_set(pde6_ai, pde6, 1); |
1792 | bf_set(pde6_ae, pde6, 0); | |
1793 | bf_set(pde6_apptagval, pde6, 0); | |
1794 | ||
1795 | /* Endianness conversion if necessary for PDE6 */ | |
1796 | pde6->word0 = cpu_to_le32(pde6->word0); | |
1797 | pde6->word1 = cpu_to_le32(pde6->word1); | |
1798 | pde6->word2 = cpu_to_le32(pde6->word2); | |
1799 | ||
1800 | /* advance bpl and increment bde count */ | |
1801 | num_bde++; | |
1802 | bpl++; | |
1803 | ||
1804 | /* setup the first BDE that points to protection buffer */ | |
1805 | protphysaddr = sg_dma_address(sgpe) + protgroup_offset; | |
1806 | protgroup_len = sg_dma_len(sgpe) - protgroup_offset; | |
1807 | ||
1808 | /* must be integer multiple of the DIF block length */ | |
1809 | BUG_ON(protgroup_len % 8); | |
1810 | ||
1811 | pde7 = (struct lpfc_pde7 *) bpl; | |
1812 | memset(pde7, 0, sizeof(struct lpfc_pde7)); | |
1813 | bf_set(pde7_type, pde7, LPFC_PDE7_DESCRIPTOR); | |
1814 | ||
1815 | pde7->addrHigh = le32_to_cpu(putPaddrHigh(protphysaddr)); | |
1816 | pde7->addrLow = le32_to_cpu(putPaddrLow(protphysaddr)); | |
1817 | ||
1818 | protgrp_blks = protgroup_len / 8; | |
1819 | protgrp_bytes = protgrp_blks * blksize; | |
1820 | ||
1821 | /* check if this pde is crossing the 4K boundary; if so split */ | |
1822 | if ((pde7->addrLow & 0xfff) + protgroup_len > 0x1000) { | |
1823 | protgroup_remainder = 0x1000 - (pde7->addrLow & 0xfff); | |
1824 | protgroup_offset += protgroup_remainder; | |
1825 | protgrp_blks = protgroup_remainder / 8; | |
1826 | protgrp_bytes = protgrp_blks * blksize; | |
1827 | } else { | |
1828 | protgroup_offset = 0; | |
1829 | curr_prot++; | |
1830 | } | |
1831 | ||
1832 | num_bde++; | |
1833 | ||
1834 | /* setup BDE's for data blocks associated with DIF data */ | |
1835 | pgdone = 0; | |
1836 | subtotal = 0; /* total bytes processed for current prot grp */ | |
1837 | while (!pgdone) { | |
96f7077f JS |
1838 | /* Check to see if we ran out of space */ |
1839 | if (num_bde >= phba->cfg_total_seg_cnt) | |
1840 | return num_bde + 1; | |
1841 | ||
acd6859b JS |
1842 | if (!sgde) { |
1843 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
1844 | "9065 BLKGRD:%s Invalid data segment\n", | |
1845 | __func__); | |
1846 | return 0; | |
1847 | } | |
1848 | bpl++; | |
1849 | dataphysaddr = sg_dma_address(sgde) + split_offset; | |
1850 | bpl->addrLow = le32_to_cpu(putPaddrLow(dataphysaddr)); | |
1851 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(dataphysaddr)); | |
1852 | ||
1853 | remainder = sg_dma_len(sgde) - split_offset; | |
1854 | ||
1855 | if ((subtotal + remainder) <= protgrp_bytes) { | |
1856 | /* we can use this whole buffer */ | |
1857 | bpl->tus.f.bdeSize = remainder; | |
1858 | split_offset = 0; | |
1859 | ||
1860 | if ((subtotal + remainder) == protgrp_bytes) | |
1861 | pgdone = 1; | |
1862 | } else { | |
1863 | /* must split this buffer with next prot grp */ | |
1864 | bpl->tus.f.bdeSize = protgrp_bytes - subtotal; | |
1865 | split_offset += bpl->tus.f.bdeSize; | |
1866 | } | |
1867 | ||
1868 | subtotal += bpl->tus.f.bdeSize; | |
1869 | ||
1870 | if (datadir == DMA_TO_DEVICE) | |
1871 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
1872 | else | |
1873 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
1874 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
1875 | ||
1876 | num_bde++; | |
1877 | curr_data++; | |
1878 | ||
1879 | if (split_offset) | |
1880 | break; | |
1881 | ||
1882 | /* Move to the next s/g segment if possible */ | |
1883 | sgde = sg_next(sgde); | |
1884 | ||
1885 | } | |
1886 | ||
1887 | if (protgroup_offset) { | |
1888 | /* update the reference tag */ | |
1889 | reftag += protgrp_blks; | |
1890 | bpl++; | |
1891 | continue; | |
1892 | } | |
1893 | ||
1894 | /* are we done ? */ | |
1895 | if (curr_prot == protcnt) { | |
1896 | alldone = 1; | |
1897 | } else if (curr_prot < protcnt) { | |
1898 | /* advance to next prot buffer */ | |
1899 | sgpe = sg_next(sgpe); | |
1900 | bpl++; | |
1901 | ||
1902 | /* update the reference tag */ | |
1903 | reftag += protgrp_blks; | |
1904 | } else { | |
1905 | /* if we're here, we have a bug */ | |
1906 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
1907 | "9054 BLKGRD: bug in %s\n", __func__); | |
1908 | } | |
1909 | ||
1910 | } while (!alldone); | |
1911 | out: | |
1912 | ||
1913 | return num_bde; | |
1914 | } | |
1915 | ||
1916 | /** | |
1917 | * lpfc_bg_setup_sgl - Setup BlockGuard SGL with no protection data | |
1918 | * @phba: The Hba for which this call is being executed. | |
1919 | * @sc: pointer to scsi command we're working on | |
1920 | * @sgl: pointer to buffer list for protection groups | |
1921 | * @datacnt: number of segments of data that have been dma mapped | |
1922 | * | |
1923 | * This function sets up SGL buffer list for protection groups of | |
1924 | * type LPFC_PG_TYPE_NO_DIF | |
1925 | * | |
1926 | * This is usually used when the HBA is instructed to generate | |
1927 | * DIFs and insert them into data stream (or strip DIF from | |
1928 | * incoming data stream) | |
1929 | * | |
1930 | * The buffer list consists of just one protection group described | |
1931 | * below: | |
1932 | * +-------------------------+ | |
1933 | * start of prot group --> | DI_SEED | | |
1934 | * +-------------------------+ | |
1935 | * | Data SGE | | |
1936 | * +-------------------------+ | |
1937 | * |more Data SGE's ... (opt)| | |
1938 | * +-------------------------+ | |
1939 | * | |
1940 | * | |
1941 | * Note: Data s/g buffers have been dma mapped | |
1942 | * | |
1943 | * Returns the number of SGEs added to the SGL. | |
1944 | **/ | |
1945 | static int | |
1946 | lpfc_bg_setup_sgl(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
d79c9e9d JS |
1947 | struct sli4_sge *sgl, int datasegcnt, |
1948 | struct lpfc_io_buf *lpfc_cmd) | |
acd6859b JS |
1949 | { |
1950 | struct scatterlist *sgde = NULL; /* s/g data entry */ | |
1951 | struct sli4_sge_diseed *diseed = NULL; | |
1952 | dma_addr_t physaddr; | |
1953 | int i = 0, num_sge = 0, status; | |
acd6859b | 1954 | uint32_t reftag; |
acd6859b | 1955 | uint8_t txop, rxop; |
0829a19a | 1956 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 1957 | uint32_t rc; |
0829a19a | 1958 | #endif |
acd6859b JS |
1959 | uint32_t checking = 1; |
1960 | uint32_t dma_len; | |
1961 | uint32_t dma_offset = 0; | |
d79c9e9d JS |
1962 | struct sli4_hybrid_sgl *sgl_xtra = NULL; |
1963 | int j; | |
1964 | bool lsp_just_set = false; | |
acd6859b JS |
1965 | |
1966 | status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop); | |
1967 | if (status) | |
1968 | goto out; | |
1969 | ||
1970 | /* extract some info from the scsi command for pde*/ | |
acd6859b JS |
1971 | reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */ |
1972 | ||
1973 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS | |
4ac9b226 | 1974 | rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); |
acd6859b | 1975 | if (rc) { |
9a6b09c0 | 1976 | if (rc & BG_ERR_SWAP) |
acd6859b | 1977 | lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); |
9a6b09c0 | 1978 | if (rc & BG_ERR_CHECK) |
acd6859b JS |
1979 | checking = 0; |
1980 | } | |
1981 | #endif | |
1982 | ||
1983 | /* setup DISEED with what we have */ | |
1984 | diseed = (struct sli4_sge_diseed *) sgl; | |
1985 | memset(diseed, 0, sizeof(struct sli4_sge_diseed)); | |
1986 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DISEED); | |
1987 | ||
1988 | /* Endianness conversion if necessary */ | |
1989 | diseed->ref_tag = cpu_to_le32(reftag); | |
1990 | diseed->ref_tag_tran = diseed->ref_tag; | |
1991 | ||
a6887e28 JS |
1992 | /* |
1993 | * We only need to check the data on READs, for WRITEs | |
1994 | * protection data is automatically generated, not checked. | |
1995 | */ | |
1996 | if (sc->sc_data_direction == DMA_FROM_DEVICE) { | |
9c6aa9d7 | 1997 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_GUARD)) |
a6887e28 JS |
1998 | bf_set(lpfc_sli4_sge_dif_ce, diseed, checking); |
1999 | else | |
2000 | bf_set(lpfc_sli4_sge_dif_ce, diseed, 0); | |
2001 | ||
9c6aa9d7 | 2002 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_REF)) |
a6887e28 JS |
2003 | bf_set(lpfc_sli4_sge_dif_re, diseed, checking); |
2004 | else | |
2005 | bf_set(lpfc_sli4_sge_dif_re, diseed, 0); | |
2006 | } | |
2007 | ||
acd6859b JS |
2008 | /* setup DISEED with the rest of the info */ |
2009 | bf_set(lpfc_sli4_sge_dif_optx, diseed, txop); | |
2010 | bf_set(lpfc_sli4_sge_dif_oprx, diseed, rxop); | |
a6887e28 | 2011 | |
acd6859b JS |
2012 | bf_set(lpfc_sli4_sge_dif_ai, diseed, 1); |
2013 | bf_set(lpfc_sli4_sge_dif_me, diseed, 0); | |
2014 | ||
2015 | /* Endianness conversion if necessary for DISEED */ | |
2016 | diseed->word2 = cpu_to_le32(diseed->word2); | |
2017 | diseed->word3 = cpu_to_le32(diseed->word3); | |
2018 | ||
2019 | /* advance bpl and increment sge count */ | |
2020 | num_sge++; | |
2021 | sgl++; | |
2022 | ||
2023 | /* assumption: caller has already run dma_map_sg on command data */ | |
d79c9e9d JS |
2024 | sgde = scsi_sglist(sc); |
2025 | j = 3; | |
2026 | for (i = 0; i < datasegcnt; i++) { | |
2027 | /* clear it */ | |
2028 | sgl->word2 = 0; | |
acd6859b | 2029 | |
d79c9e9d JS |
2030 | /* do we need to expand the segment */ |
2031 | if (!lsp_just_set && !((j + 1) % phba->border_sge_num) && | |
2032 | ((datasegcnt - 1) != i)) { | |
2033 | /* set LSP type */ | |
2034 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_LSP); | |
2035 | ||
2036 | sgl_xtra = lpfc_get_sgl_per_hdwq(phba, lpfc_cmd); | |
2037 | ||
2038 | if (unlikely(!sgl_xtra)) { | |
2039 | lpfc_cmd->seg_cnt = 0; | |
2040 | return 0; | |
2041 | } | |
2042 | sgl->addr_lo = cpu_to_le32(putPaddrLow( | |
2043 | sgl_xtra->dma_phys_sgl)); | |
2044 | sgl->addr_hi = cpu_to_le32(putPaddrHigh( | |
2045 | sgl_xtra->dma_phys_sgl)); | |
2046 | ||
2047 | } else { | |
2048 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA); | |
2049 | } | |
2050 | ||
2051 | if (!(bf_get(lpfc_sli4_sge_type, sgl) & LPFC_SGE_TYPE_LSP)) { | |
2052 | if ((datasegcnt - 1) == i) | |
2053 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
2054 | physaddr = sg_dma_address(sgde); | |
2055 | dma_len = sg_dma_len(sgde); | |
2056 | sgl->addr_lo = cpu_to_le32(putPaddrLow(physaddr)); | |
2057 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(physaddr)); | |
2058 | ||
2059 | bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); | |
2060 | sgl->word2 = cpu_to_le32(sgl->word2); | |
2061 | sgl->sge_len = cpu_to_le32(dma_len); | |
2062 | ||
2063 | dma_offset += dma_len; | |
2064 | sgde = sg_next(sgde); | |
2065 | ||
2066 | sgl++; | |
2067 | num_sge++; | |
2068 | lsp_just_set = false; | |
2069 | ||
2070 | } else { | |
2071 | sgl->word2 = cpu_to_le32(sgl->word2); | |
2072 | sgl->sge_len = cpu_to_le32(phba->cfg_sg_dma_buf_size); | |
2073 | ||
2074 | sgl = (struct sli4_sge *)sgl_xtra->dma_sgl; | |
2075 | i = i - 1; | |
2076 | ||
2077 | lsp_just_set = true; | |
2078 | } | |
2079 | ||
2080 | j++; | |
acd6859b | 2081 | |
acd6859b JS |
2082 | } |
2083 | ||
2084 | out: | |
2085 | return num_sge; | |
2086 | } | |
2087 | ||
2088 | /** | |
2089 | * lpfc_bg_setup_sgl_prot - Setup BlockGuard SGL with protection data | |
2090 | * @phba: The Hba for which this call is being executed. | |
2091 | * @sc: pointer to scsi command we're working on | |
2092 | * @sgl: pointer to buffer list for protection groups | |
2093 | * @datacnt: number of segments of data that have been dma mapped | |
2094 | * @protcnt: number of segment of protection data that have been dma mapped | |
2095 | * | |
2096 | * This function sets up SGL buffer list for protection groups of | |
2097 | * type LPFC_PG_TYPE_DIF | |
2098 | * | |
2099 | * This is usually used when DIFs are in their own buffers, | |
2100 | * separate from the data. The HBA can then by instructed | |
2101 | * to place the DIFs in the outgoing stream. For read operations, | |
2102 | * The HBA could extract the DIFs and place it in DIF buffers. | |
2103 | * | |
2104 | * The buffer list for this type consists of one or more of the | |
2105 | * protection groups described below: | |
2106 | * +-------------------------+ | |
2107 | * start of first prot group --> | DISEED | | |
2108 | * +-------------------------+ | |
2109 | * | DIF (Prot SGE) | | |
2110 | * +-------------------------+ | |
2111 | * | Data SGE | | |
2112 | * +-------------------------+ | |
2113 | * |more Data SGE's ... (opt)| | |
2114 | * +-------------------------+ | |
2115 | * start of new prot group --> | DISEED | | |
2116 | * +-------------------------+ | |
2117 | * | ... | | |
2118 | * +-------------------------+ | |
2119 | * | |
2120 | * Note: It is assumed that both data and protection s/g buffers have been | |
2121 | * mapped for DMA | |
2122 | * | |
2123 | * Returns the number of SGEs added to the SGL. | |
2124 | **/ | |
2125 | static int | |
2126 | lpfc_bg_setup_sgl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
d79c9e9d JS |
2127 | struct sli4_sge *sgl, int datacnt, int protcnt, |
2128 | struct lpfc_io_buf *lpfc_cmd) | |
acd6859b JS |
2129 | { |
2130 | struct scatterlist *sgde = NULL; /* s/g data entry */ | |
2131 | struct scatterlist *sgpe = NULL; /* s/g prot entry */ | |
2132 | struct sli4_sge_diseed *diseed = NULL; | |
2133 | dma_addr_t dataphysaddr, protphysaddr; | |
2134 | unsigned short curr_data = 0, curr_prot = 0; | |
2135 | unsigned int split_offset; | |
2136 | unsigned int protgroup_len, protgroup_offset = 0, protgroup_remainder; | |
2137 | unsigned int protgrp_blks, protgrp_bytes; | |
2138 | unsigned int remainder, subtotal; | |
2139 | int status; | |
2140 | unsigned char pgdone = 0, alldone = 0; | |
2141 | unsigned blksize; | |
2142 | uint32_t reftag; | |
2143 | uint8_t txop, rxop; | |
2144 | uint32_t dma_len; | |
0829a19a | 2145 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 2146 | uint32_t rc; |
0829a19a | 2147 | #endif |
acd6859b JS |
2148 | uint32_t checking = 1; |
2149 | uint32_t dma_offset = 0; | |
d79c9e9d JS |
2150 | int num_sge = 0, j = 2; |
2151 | struct sli4_hybrid_sgl *sgl_xtra = NULL; | |
acd6859b JS |
2152 | |
2153 | sgpe = scsi_prot_sglist(sc); | |
2154 | sgde = scsi_sglist(sc); | |
2155 | ||
2156 | if (!sgpe || !sgde) { | |
2157 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, | |
32350664 | 2158 | "9082 Invalid s/g entry: data=x%px prot=x%px\n", |
e2a0a9d6 JS |
2159 | sgpe, sgde); |
2160 | return 0; | |
2161 | } | |
2162 | ||
6c8eea54 JS |
2163 | status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop); |
2164 | if (status) | |
e2a0a9d6 JS |
2165 | goto out; |
2166 | ||
6c8eea54 | 2167 | /* extract some info from the scsi command */ |
e2a0a9d6 | 2168 | blksize = lpfc_cmd_blksize(sc); |
acd6859b | 2169 | reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */ |
e2a0a9d6 | 2170 | |
f9bb2da1 | 2171 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
4ac9b226 | 2172 | rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); |
acd6859b | 2173 | if (rc) { |
9a6b09c0 | 2174 | if (rc & BG_ERR_SWAP) |
acd6859b | 2175 | lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); |
9a6b09c0 | 2176 | if (rc & BG_ERR_CHECK) |
acd6859b JS |
2177 | checking = 0; |
2178 | } | |
f9bb2da1 JS |
2179 | #endif |
2180 | ||
e2a0a9d6 JS |
2181 | split_offset = 0; |
2182 | do { | |
96f7077f | 2183 | /* Check to see if we ran out of space */ |
d79c9e9d JS |
2184 | if ((num_sge >= (phba->cfg_total_seg_cnt - 2)) && |
2185 | !(phba->cfg_xpsgl)) | |
96f7077f JS |
2186 | return num_sge + 3; |
2187 | ||
d79c9e9d JS |
2188 | /* DISEED and DIF have to be together */ |
2189 | if (!((j + 1) % phba->border_sge_num) || | |
2190 | !((j + 2) % phba->border_sge_num) || | |
2191 | !((j + 3) % phba->border_sge_num)) { | |
2192 | sgl->word2 = 0; | |
2193 | ||
2194 | /* set LSP type */ | |
2195 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_LSP); | |
2196 | ||
2197 | sgl_xtra = lpfc_get_sgl_per_hdwq(phba, lpfc_cmd); | |
2198 | ||
2199 | if (unlikely(!sgl_xtra)) { | |
2200 | goto out; | |
2201 | } else { | |
2202 | sgl->addr_lo = cpu_to_le32(putPaddrLow( | |
2203 | sgl_xtra->dma_phys_sgl)); | |
2204 | sgl->addr_hi = cpu_to_le32(putPaddrHigh( | |
2205 | sgl_xtra->dma_phys_sgl)); | |
2206 | } | |
2207 | ||
2208 | sgl->word2 = cpu_to_le32(sgl->word2); | |
2209 | sgl->sge_len = cpu_to_le32(phba->cfg_sg_dma_buf_size); | |
2210 | ||
2211 | sgl = (struct sli4_sge *)sgl_xtra->dma_sgl; | |
2212 | j = 0; | |
2213 | } | |
2214 | ||
acd6859b JS |
2215 | /* setup DISEED with what we have */ |
2216 | diseed = (struct sli4_sge_diseed *) sgl; | |
2217 | memset(diseed, 0, sizeof(struct sli4_sge_diseed)); | |
2218 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DISEED); | |
2219 | ||
2220 | /* Endianness conversion if necessary */ | |
2221 | diseed->ref_tag = cpu_to_le32(reftag); | |
2222 | diseed->ref_tag_tran = diseed->ref_tag; | |
2223 | ||
9c6aa9d7 | 2224 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_GUARD)) { |
a6887e28 JS |
2225 | bf_set(lpfc_sli4_sge_dif_ce, diseed, checking); |
2226 | ||
2227 | } else { | |
2228 | bf_set(lpfc_sli4_sge_dif_ce, diseed, 0); | |
2229 | /* | |
2230 | * When in this mode, the hardware will replace | |
2231 | * the guard tag from the host with a | |
2232 | * newly generated good CRC for the wire. | |
2233 | * Switch to raw mode here to avoid this | |
2234 | * behavior. What the host sends gets put on the wire. | |
2235 | */ | |
2236 | if (txop == BG_OP_IN_CRC_OUT_CRC) { | |
2237 | txop = BG_OP_RAW_MODE; | |
2238 | rxop = BG_OP_RAW_MODE; | |
2239 | } | |
2240 | } | |
2241 | ||
2242 | ||
9c6aa9d7 | 2243 | if (lpfc_cmd_protect(sc, LPFC_CHECK_PROTECT_REF)) |
a6887e28 JS |
2244 | bf_set(lpfc_sli4_sge_dif_re, diseed, checking); |
2245 | else | |
2246 | bf_set(lpfc_sli4_sge_dif_re, diseed, 0); | |
2247 | ||
acd6859b JS |
2248 | /* setup DISEED with the rest of the info */ |
2249 | bf_set(lpfc_sli4_sge_dif_optx, diseed, txop); | |
2250 | bf_set(lpfc_sli4_sge_dif_oprx, diseed, rxop); | |
a6887e28 | 2251 | |
acd6859b JS |
2252 | bf_set(lpfc_sli4_sge_dif_ai, diseed, 1); |
2253 | bf_set(lpfc_sli4_sge_dif_me, diseed, 0); | |
2254 | ||
2255 | /* Endianness conversion if necessary for DISEED */ | |
2256 | diseed->word2 = cpu_to_le32(diseed->word2); | |
2257 | diseed->word3 = cpu_to_le32(diseed->word3); | |
2258 | ||
2259 | /* advance sgl and increment bde count */ | |
2260 | num_sge++; | |
d79c9e9d | 2261 | |
acd6859b | 2262 | sgl++; |
d79c9e9d | 2263 | j++; |
e2a0a9d6 JS |
2264 | |
2265 | /* setup the first BDE that points to protection buffer */ | |
7f86059a JS |
2266 | protphysaddr = sg_dma_address(sgpe) + protgroup_offset; |
2267 | protgroup_len = sg_dma_len(sgpe) - protgroup_offset; | |
e2a0a9d6 | 2268 | |
e2a0a9d6 JS |
2269 | /* must be integer multiple of the DIF block length */ |
2270 | BUG_ON(protgroup_len % 8); | |
2271 | ||
acd6859b JS |
2272 | /* Now setup DIF SGE */ |
2273 | sgl->word2 = 0; | |
2274 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DIF); | |
2275 | sgl->addr_hi = le32_to_cpu(putPaddrHigh(protphysaddr)); | |
2276 | sgl->addr_lo = le32_to_cpu(putPaddrLow(protphysaddr)); | |
2277 | sgl->word2 = cpu_to_le32(sgl->word2); | |
d79c9e9d | 2278 | sgl->sge_len = 0; |
7f86059a | 2279 | |
e2a0a9d6 JS |
2280 | protgrp_blks = protgroup_len / 8; |
2281 | protgrp_bytes = protgrp_blks * blksize; | |
2282 | ||
acd6859b JS |
2283 | /* check if DIF SGE is crossing the 4K boundary; if so split */ |
2284 | if ((sgl->addr_lo & 0xfff) + protgroup_len > 0x1000) { | |
2285 | protgroup_remainder = 0x1000 - (sgl->addr_lo & 0xfff); | |
7f86059a JS |
2286 | protgroup_offset += protgroup_remainder; |
2287 | protgrp_blks = protgroup_remainder / 8; | |
7c56b9fd | 2288 | protgrp_bytes = protgrp_blks * blksize; |
7f86059a JS |
2289 | } else { |
2290 | protgroup_offset = 0; | |
2291 | curr_prot++; | |
2292 | } | |
e2a0a9d6 | 2293 | |
acd6859b | 2294 | num_sge++; |
e2a0a9d6 | 2295 | |
acd6859b | 2296 | /* setup SGE's for data blocks associated with DIF data */ |
e2a0a9d6 JS |
2297 | pgdone = 0; |
2298 | subtotal = 0; /* total bytes processed for current prot grp */ | |
d79c9e9d JS |
2299 | |
2300 | sgl++; | |
2301 | j++; | |
2302 | ||
e2a0a9d6 | 2303 | while (!pgdone) { |
96f7077f | 2304 | /* Check to see if we ran out of space */ |
d79c9e9d JS |
2305 | if ((num_sge >= phba->cfg_total_seg_cnt) && |
2306 | !phba->cfg_xpsgl) | |
96f7077f JS |
2307 | return num_sge + 1; |
2308 | ||
e2a0a9d6 | 2309 | if (!sgde) { |
6a9c52cf | 2310 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
acd6859b | 2311 | "9086 BLKGRD:%s Invalid data segment\n", |
e2a0a9d6 JS |
2312 | __func__); |
2313 | return 0; | |
2314 | } | |
e2a0a9d6 | 2315 | |
d79c9e9d JS |
2316 | if (!((j + 1) % phba->border_sge_num)) { |
2317 | sgl->word2 = 0; | |
e2a0a9d6 | 2318 | |
d79c9e9d JS |
2319 | /* set LSP type */ |
2320 | bf_set(lpfc_sli4_sge_type, sgl, | |
2321 | LPFC_SGE_TYPE_LSP); | |
e2a0a9d6 | 2322 | |
d79c9e9d JS |
2323 | sgl_xtra = lpfc_get_sgl_per_hdwq(phba, |
2324 | lpfc_cmd); | |
2325 | ||
2326 | if (unlikely(!sgl_xtra)) { | |
2327 | goto out; | |
2328 | } else { | |
2329 | sgl->addr_lo = cpu_to_le32( | |
2330 | putPaddrLow(sgl_xtra->dma_phys_sgl)); | |
2331 | sgl->addr_hi = cpu_to_le32( | |
2332 | putPaddrHigh(sgl_xtra->dma_phys_sgl)); | |
2333 | } | |
2334 | ||
2335 | sgl->word2 = cpu_to_le32(sgl->word2); | |
2336 | sgl->sge_len = cpu_to_le32( | |
2337 | phba->cfg_sg_dma_buf_size); | |
2338 | ||
2339 | sgl = (struct sli4_sge *)sgl_xtra->dma_sgl; | |
e2a0a9d6 | 2340 | } else { |
d79c9e9d JS |
2341 | dataphysaddr = sg_dma_address(sgde) + |
2342 | split_offset; | |
e2a0a9d6 | 2343 | |
d79c9e9d | 2344 | remainder = sg_dma_len(sgde) - split_offset; |
e2a0a9d6 | 2345 | |
d79c9e9d JS |
2346 | if ((subtotal + remainder) <= protgrp_bytes) { |
2347 | /* we can use this whole buffer */ | |
2348 | dma_len = remainder; | |
2349 | split_offset = 0; | |
e2a0a9d6 | 2350 | |
d79c9e9d JS |
2351 | if ((subtotal + remainder) == |
2352 | protgrp_bytes) | |
2353 | pgdone = 1; | |
2354 | } else { | |
2355 | /* must split this buffer with next | |
2356 | * prot grp | |
2357 | */ | |
2358 | dma_len = protgrp_bytes - subtotal; | |
2359 | split_offset += dma_len; | |
2360 | } | |
acd6859b | 2361 | |
d79c9e9d | 2362 | subtotal += dma_len; |
e2a0a9d6 | 2363 | |
d79c9e9d JS |
2364 | sgl->word2 = 0; |
2365 | sgl->addr_lo = cpu_to_le32(putPaddrLow( | |
2366 | dataphysaddr)); | |
2367 | sgl->addr_hi = cpu_to_le32(putPaddrHigh( | |
2368 | dataphysaddr)); | |
2369 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
2370 | bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); | |
2371 | bf_set(lpfc_sli4_sge_type, sgl, | |
2372 | LPFC_SGE_TYPE_DATA); | |
e2a0a9d6 | 2373 | |
d79c9e9d JS |
2374 | sgl->sge_len = cpu_to_le32(dma_len); |
2375 | dma_offset += dma_len; | |
2376 | ||
2377 | num_sge++; | |
2378 | curr_data++; | |
2379 | ||
2380 | if (split_offset) { | |
2381 | sgl++; | |
2382 | j++; | |
2383 | break; | |
2384 | } | |
2385 | ||
2386 | /* Move to the next s/g segment if possible */ | |
2387 | sgde = sg_next(sgde); | |
2388 | ||
2389 | sgl++; | |
2390 | } | |
2391 | ||
2392 | j++; | |
e2a0a9d6 JS |
2393 | } |
2394 | ||
7f86059a JS |
2395 | if (protgroup_offset) { |
2396 | /* update the reference tag */ | |
2397 | reftag += protgrp_blks; | |
7f86059a JS |
2398 | continue; |
2399 | } | |
2400 | ||
e2a0a9d6 JS |
2401 | /* are we done ? */ |
2402 | if (curr_prot == protcnt) { | |
d79c9e9d JS |
2403 | /* mark the last SGL */ |
2404 | sgl--; | |
acd6859b | 2405 | bf_set(lpfc_sli4_sge_last, sgl, 1); |
e2a0a9d6 JS |
2406 | alldone = 1; |
2407 | } else if (curr_prot < protcnt) { | |
2408 | /* advance to next prot buffer */ | |
2409 | sgpe = sg_next(sgpe); | |
e2a0a9d6 JS |
2410 | |
2411 | /* update the reference tag */ | |
2412 | reftag += protgrp_blks; | |
2413 | } else { | |
2414 | /* if we're here, we have a bug */ | |
6a9c52cf | 2415 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
acd6859b | 2416 | "9085 BLKGRD: bug in %s\n", __func__); |
e2a0a9d6 JS |
2417 | } |
2418 | ||
2419 | } while (!alldone); | |
acd6859b | 2420 | |
e2a0a9d6 JS |
2421 | out: |
2422 | ||
acd6859b | 2423 | return num_sge; |
e2a0a9d6 | 2424 | } |
7f86059a | 2425 | |
acd6859b JS |
2426 | /** |
2427 | * lpfc_prot_group_type - Get prtotection group type of SCSI command | |
2428 | * @phba: The Hba for which this call is being executed. | |
2429 | * @sc: pointer to scsi command we're working on | |
2430 | * | |
e2a0a9d6 JS |
2431 | * Given a SCSI command that supports DIF, determine composition of protection |
2432 | * groups involved in setting up buffer lists | |
2433 | * | |
acd6859b JS |
2434 | * Returns: Protection group type (with or without DIF) |
2435 | * | |
2436 | **/ | |
e2a0a9d6 JS |
2437 | static int |
2438 | lpfc_prot_group_type(struct lpfc_hba *phba, struct scsi_cmnd *sc) | |
2439 | { | |
2440 | int ret = LPFC_PG_TYPE_INVALID; | |
2441 | unsigned char op = scsi_get_prot_op(sc); | |
2442 | ||
2443 | switch (op) { | |
2444 | case SCSI_PROT_READ_STRIP: | |
2445 | case SCSI_PROT_WRITE_INSERT: | |
2446 | ret = LPFC_PG_TYPE_NO_DIF; | |
2447 | break; | |
2448 | case SCSI_PROT_READ_INSERT: | |
2449 | case SCSI_PROT_WRITE_STRIP: | |
2450 | case SCSI_PROT_READ_PASS: | |
2451 | case SCSI_PROT_WRITE_PASS: | |
e2a0a9d6 JS |
2452 | ret = LPFC_PG_TYPE_DIF_BUF; |
2453 | break; | |
2454 | default: | |
9c6aa9d7 JS |
2455 | if (phba) |
2456 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, | |
2457 | "9021 Unsupported protection op:%d\n", | |
2458 | op); | |
e2a0a9d6 JS |
2459 | break; |
2460 | } | |
e2a0a9d6 JS |
2461 | return ret; |
2462 | } | |
2463 | ||
a6887e28 JS |
2464 | /** |
2465 | * lpfc_bg_scsi_adjust_dl - Adjust SCSI data length for BlockGuard | |
2466 | * @phba: The Hba for which this call is being executed. | |
2467 | * @lpfc_cmd: The scsi buffer which is going to be adjusted. | |
2468 | * | |
2469 | * Adjust the data length to account for how much data | |
2470 | * is actually on the wire. | |
2471 | * | |
2472 | * returns the adjusted data length | |
2473 | **/ | |
2474 | static int | |
2475 | lpfc_bg_scsi_adjust_dl(struct lpfc_hba *phba, | |
c490850a | 2476 | struct lpfc_io_buf *lpfc_cmd) |
a6887e28 JS |
2477 | { |
2478 | struct scsi_cmnd *sc = lpfc_cmd->pCmd; | |
2479 | int fcpdl; | |
2480 | ||
2481 | fcpdl = scsi_bufflen(sc); | |
2482 | ||
2483 | /* Check if there is protection data on the wire */ | |
2484 | if (sc->sc_data_direction == DMA_FROM_DEVICE) { | |
9c6aa9d7 | 2485 | /* Read check for protection data */ |
a6887e28 JS |
2486 | if (scsi_get_prot_op(sc) == SCSI_PROT_READ_INSERT) |
2487 | return fcpdl; | |
2488 | ||
2489 | } else { | |
9c6aa9d7 | 2490 | /* Write check for protection data */ |
a6887e28 JS |
2491 | if (scsi_get_prot_op(sc) == SCSI_PROT_WRITE_STRIP) |
2492 | return fcpdl; | |
2493 | } | |
2494 | ||
2495 | /* | |
2496 | * If we are in DIF Type 1 mode every data block has a 8 byte | |
9c6aa9d7 JS |
2497 | * DIF (trailer) attached to it. Must ajust FCP data length |
2498 | * to account for the protection data. | |
a6887e28 | 2499 | */ |
9c6aa9d7 | 2500 | fcpdl += (fcpdl / lpfc_cmd_blksize(sc)) * 8; |
a6887e28 JS |
2501 | |
2502 | return fcpdl; | |
2503 | } | |
2504 | ||
acd6859b JS |
2505 | /** |
2506 | * lpfc_bg_scsi_prep_dma_buf_s3 - DMA mapping for scsi buffer to SLI3 IF spec | |
2507 | * @phba: The Hba for which this call is being executed. | |
2508 | * @lpfc_cmd: The scsi buffer which is going to be prep'ed. | |
2509 | * | |
e2a0a9d6 JS |
2510 | * This is the protection/DIF aware version of |
2511 | * lpfc_scsi_prep_dma_buf(). It may be a good idea to combine the | |
5e0e2318 JS |
2512 | * two functions eventually, but for now, it's here. |
2513 | * RETURNS 0 - SUCCESS, | |
2514 | * 1 - Failed DMA map, retry. | |
2515 | * 2 - Invalid scsi cmd or prot-type. Do not rety. | |
acd6859b | 2516 | **/ |
e2a0a9d6 | 2517 | static int |
acd6859b | 2518 | lpfc_bg_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, |
c490850a | 2519 | struct lpfc_io_buf *lpfc_cmd) |
e2a0a9d6 JS |
2520 | { |
2521 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
2522 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
c490850a | 2523 | struct ulp_bde64 *bpl = (struct ulp_bde64 *)lpfc_cmd->dma_sgl; |
e2a0a9d6 JS |
2524 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; |
2525 | uint32_t num_bde = 0; | |
2526 | int datasegcnt, protsegcnt, datadir = scsi_cmnd->sc_data_direction; | |
2527 | int prot_group_type = 0; | |
a6887e28 | 2528 | int fcpdl; |
5e0e2318 | 2529 | int ret = 1; |
7c4042a4 | 2530 | struct lpfc_vport *vport = phba->pport; |
e2a0a9d6 JS |
2531 | |
2532 | /* | |
2533 | * Start the lpfc command prep by bumping the bpl beyond fcp_cmnd | |
2534 | * fcp_rsp regions to the first data bde entry | |
2535 | */ | |
2536 | bpl += 2; | |
2537 | if (scsi_sg_count(scsi_cmnd)) { | |
2538 | /* | |
2539 | * The driver stores the segment count returned from pci_map_sg | |
2540 | * because this a count of dma-mappings used to map the use_sg | |
2541 | * pages. They are not guaranteed to be the same for those | |
2542 | * architectures that implement an IOMMU. | |
2543 | */ | |
2544 | datasegcnt = dma_map_sg(&phba->pcidev->dev, | |
2545 | scsi_sglist(scsi_cmnd), | |
2546 | scsi_sg_count(scsi_cmnd), datadir); | |
2547 | if (unlikely(!datasegcnt)) | |
2548 | return 1; | |
2549 | ||
2550 | lpfc_cmd->seg_cnt = datasegcnt; | |
96f7077f JS |
2551 | |
2552 | /* First check if data segment count from SCSI Layer is good */ | |
5e0e2318 JS |
2553 | if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) { |
2554 | WARN_ON_ONCE(lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt); | |
2555 | ret = 2; | |
96f7077f | 2556 | goto err; |
5e0e2318 | 2557 | } |
e2a0a9d6 JS |
2558 | |
2559 | prot_group_type = lpfc_prot_group_type(phba, scsi_cmnd); | |
2560 | ||
2561 | switch (prot_group_type) { | |
2562 | case LPFC_PG_TYPE_NO_DIF: | |
96f7077f JS |
2563 | |
2564 | /* Here we need to add a PDE5 and PDE6 to the count */ | |
5e0e2318 JS |
2565 | if ((lpfc_cmd->seg_cnt + 2) > phba->cfg_total_seg_cnt) { |
2566 | ret = 2; | |
96f7077f | 2567 | goto err; |
5e0e2318 | 2568 | } |
96f7077f | 2569 | |
e2a0a9d6 JS |
2570 | num_bde = lpfc_bg_setup_bpl(phba, scsi_cmnd, bpl, |
2571 | datasegcnt); | |
c9404c9c | 2572 | /* we should have 2 or more entries in buffer list */ |
5e0e2318 JS |
2573 | if (num_bde < 2) { |
2574 | ret = 2; | |
e2a0a9d6 | 2575 | goto err; |
5e0e2318 | 2576 | } |
e2a0a9d6 | 2577 | break; |
96f7077f JS |
2578 | |
2579 | case LPFC_PG_TYPE_DIF_BUF: | |
e2a0a9d6 JS |
2580 | /* |
2581 | * This type indicates that protection buffers are | |
2582 | * passed to the driver, so that needs to be prepared | |
2583 | * for DMA | |
2584 | */ | |
2585 | protsegcnt = dma_map_sg(&phba->pcidev->dev, | |
2586 | scsi_prot_sglist(scsi_cmnd), | |
2587 | scsi_prot_sg_count(scsi_cmnd), datadir); | |
2588 | if (unlikely(!protsegcnt)) { | |
2589 | scsi_dma_unmap(scsi_cmnd); | |
2590 | return 1; | |
2591 | } | |
2592 | ||
2593 | lpfc_cmd->prot_seg_cnt = protsegcnt; | |
96f7077f JS |
2594 | |
2595 | /* | |
2596 | * There is a minimun of 4 BPLs used for every | |
2597 | * protection data segment. | |
2598 | */ | |
2599 | if ((lpfc_cmd->prot_seg_cnt * 4) > | |
5e0e2318 JS |
2600 | (phba->cfg_total_seg_cnt - 2)) { |
2601 | ret = 2; | |
96f7077f | 2602 | goto err; |
5e0e2318 | 2603 | } |
e2a0a9d6 JS |
2604 | |
2605 | num_bde = lpfc_bg_setup_bpl_prot(phba, scsi_cmnd, bpl, | |
2606 | datasegcnt, protsegcnt); | |
c9404c9c | 2607 | /* we should have 3 or more entries in buffer list */ |
96f7077f | 2608 | if ((num_bde < 3) || |
5e0e2318 JS |
2609 | (num_bde > phba->cfg_total_seg_cnt)) { |
2610 | ret = 2; | |
e2a0a9d6 | 2611 | goto err; |
5e0e2318 | 2612 | } |
e2a0a9d6 | 2613 | break; |
96f7077f | 2614 | |
e2a0a9d6 JS |
2615 | case LPFC_PG_TYPE_INVALID: |
2616 | default: | |
96f7077f JS |
2617 | scsi_dma_unmap(scsi_cmnd); |
2618 | lpfc_cmd->seg_cnt = 0; | |
2619 | ||
e2a0a9d6 JS |
2620 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, |
2621 | "9022 Unexpected protection group %i\n", | |
2622 | prot_group_type); | |
5e0e2318 | 2623 | return 2; |
e2a0a9d6 JS |
2624 | } |
2625 | } | |
2626 | ||
2627 | /* | |
2628 | * Finish initializing those IOCB fields that are dependent on the | |
2629 | * scsi_cmnd request_buffer. Note that the bdeSize is explicitly | |
2630 | * reinitialized since all iocb memory resources are used many times | |
2631 | * for transmit, receive, and continuation bpl's. | |
2632 | */ | |
2633 | iocb_cmd->un.fcpi64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64)); | |
2634 | iocb_cmd->un.fcpi64.bdl.bdeSize += (num_bde * sizeof(struct ulp_bde64)); | |
2635 | iocb_cmd->ulpBdeCount = 1; | |
2636 | iocb_cmd->ulpLe = 1; | |
2637 | ||
a6887e28 | 2638 | fcpdl = lpfc_bg_scsi_adjust_dl(phba, lpfc_cmd); |
e2a0a9d6 JS |
2639 | fcp_cmnd->fcpDl = be32_to_cpu(fcpdl); |
2640 | ||
2641 | /* | |
2642 | * Due to difference in data length between DIF/non-DIF paths, | |
2643 | * we need to set word 4 of IOCB here | |
2644 | */ | |
2645 | iocb_cmd->un.fcpi.fcpi_parm = fcpdl; | |
2646 | ||
7c4042a4 JS |
2647 | /* |
2648 | * For First burst, we may need to adjust the initial transfer | |
2649 | * length for DIF | |
2650 | */ | |
2651 | if (iocb_cmd->un.fcpi.fcpi_XRdy && | |
2652 | (fcpdl < vport->cfg_first_burst_size)) | |
2653 | iocb_cmd->un.fcpi.fcpi_XRdy = fcpdl; | |
2654 | ||
dea3101e | 2655 | return 0; |
e2a0a9d6 | 2656 | err: |
96f7077f JS |
2657 | if (lpfc_cmd->seg_cnt) |
2658 | scsi_dma_unmap(scsi_cmnd); | |
2659 | if (lpfc_cmd->prot_seg_cnt) | |
2660 | dma_unmap_sg(&phba->pcidev->dev, scsi_prot_sglist(scsi_cmnd), | |
2661 | scsi_prot_sg_count(scsi_cmnd), | |
2662 | scsi_cmnd->sc_data_direction); | |
2663 | ||
e2a0a9d6 | 2664 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, |
96f7077f JS |
2665 | "9023 Cannot setup S/G List for HBA" |
2666 | "IO segs %d/%d BPL %d SCSI %d: %d %d\n", | |
2667 | lpfc_cmd->seg_cnt, lpfc_cmd->prot_seg_cnt, | |
2668 | phba->cfg_total_seg_cnt, phba->cfg_sg_seg_cnt, | |
e2a0a9d6 | 2669 | prot_group_type, num_bde); |
96f7077f JS |
2670 | |
2671 | lpfc_cmd->seg_cnt = 0; | |
2672 | lpfc_cmd->prot_seg_cnt = 0; | |
5e0e2318 | 2673 | return ret; |
e2a0a9d6 JS |
2674 | } |
2675 | ||
737d4248 JS |
2676 | /* |
2677 | * This function calcuates the T10 DIF guard tag | |
2678 | * on the specified data using a CRC algorithmn | |
2679 | * using crc_t10dif. | |
2680 | */ | |
7bfe781e | 2681 | static uint16_t |
737d4248 JS |
2682 | lpfc_bg_crc(uint8_t *data, int count) |
2683 | { | |
2684 | uint16_t crc = 0; | |
2685 | uint16_t x; | |
2686 | ||
2687 | crc = crc_t10dif(data, count); | |
2688 | x = cpu_to_be16(crc); | |
2689 | return x; | |
2690 | } | |
2691 | ||
2692 | /* | |
2693 | * This function calcuates the T10 DIF guard tag | |
2694 | * on the specified data using a CSUM algorithmn | |
2695 | * using ip_compute_csum. | |
2696 | */ | |
7bfe781e | 2697 | static uint16_t |
737d4248 JS |
2698 | lpfc_bg_csum(uint8_t *data, int count) |
2699 | { | |
2700 | uint16_t ret; | |
2701 | ||
2702 | ret = ip_compute_csum(data, count); | |
2703 | return ret; | |
2704 | } | |
2705 | ||
2706 | /* | |
2707 | * This function examines the protection data to try to determine | |
2708 | * what type of T10-DIF error occurred. | |
2709 | */ | |
7bfe781e | 2710 | static void |
c490850a | 2711 | lpfc_calc_bg_err(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd) |
737d4248 JS |
2712 | { |
2713 | struct scatterlist *sgpe; /* s/g prot entry */ | |
2714 | struct scatterlist *sgde; /* s/g data entry */ | |
2715 | struct scsi_cmnd *cmd = lpfc_cmd->pCmd; | |
2716 | struct scsi_dif_tuple *src = NULL; | |
2717 | uint8_t *data_src = NULL; | |
db6f1c2f | 2718 | uint16_t guard_tag; |
737d4248 JS |
2719 | uint16_t start_app_tag, app_tag; |
2720 | uint32_t start_ref_tag, ref_tag; | |
2721 | int prot, protsegcnt; | |
2722 | int err_type, len, data_len; | |
2723 | int chk_ref, chk_app, chk_guard; | |
2724 | uint16_t sum; | |
2725 | unsigned blksize; | |
2726 | ||
2727 | err_type = BGS_GUARD_ERR_MASK; | |
2728 | sum = 0; | |
2729 | guard_tag = 0; | |
2730 | ||
2731 | /* First check to see if there is protection data to examine */ | |
2732 | prot = scsi_get_prot_op(cmd); | |
2733 | if ((prot == SCSI_PROT_READ_STRIP) || | |
2734 | (prot == SCSI_PROT_WRITE_INSERT) || | |
2735 | (prot == SCSI_PROT_NORMAL)) | |
2736 | goto out; | |
2737 | ||
2738 | /* Currently the driver just supports ref_tag and guard_tag checking */ | |
2739 | chk_ref = 1; | |
2740 | chk_app = 0; | |
2741 | chk_guard = 0; | |
2742 | ||
2743 | /* Setup a ptr to the protection data provided by the SCSI host */ | |
2744 | sgpe = scsi_prot_sglist(cmd); | |
2745 | protsegcnt = lpfc_cmd->prot_seg_cnt; | |
2746 | ||
2747 | if (sgpe && protsegcnt) { | |
2748 | ||
2749 | /* | |
2750 | * We will only try to verify guard tag if the segment | |
2751 | * data length is a multiple of the blksize. | |
2752 | */ | |
2753 | sgde = scsi_sglist(cmd); | |
2754 | blksize = lpfc_cmd_blksize(cmd); | |
2755 | data_src = (uint8_t *)sg_virt(sgde); | |
2756 | data_len = sgde->length; | |
2757 | if ((data_len & (blksize - 1)) == 0) | |
2758 | chk_guard = 1; | |
737d4248 | 2759 | |
e85d8f9f | 2760 | src = (struct scsi_dif_tuple *)sg_virt(sgpe); |
a6887e28 | 2761 | start_ref_tag = (uint32_t)scsi_get_lba(cmd); /* Truncate LBA */ |
737d4248 | 2762 | start_app_tag = src->app_tag; |
737d4248 JS |
2763 | len = sgpe->length; |
2764 | while (src && protsegcnt) { | |
2765 | while (len) { | |
2766 | ||
2767 | /* | |
2768 | * First check to see if a protection data | |
2769 | * check is valid | |
2770 | */ | |
128b6f9f DM |
2771 | if ((src->ref_tag == T10_PI_REF_ESCAPE) || |
2772 | (src->app_tag == T10_PI_APP_ESCAPE)) { | |
737d4248 JS |
2773 | start_ref_tag++; |
2774 | goto skipit; | |
2775 | } | |
2776 | ||
9c6aa9d7 | 2777 | /* First Guard Tag checking */ |
737d4248 JS |
2778 | if (chk_guard) { |
2779 | guard_tag = src->guard_tag; | |
9c6aa9d7 | 2780 | if (lpfc_cmd_guard_csum(cmd)) |
737d4248 JS |
2781 | sum = lpfc_bg_csum(data_src, |
2782 | blksize); | |
2783 | else | |
2784 | sum = lpfc_bg_crc(data_src, | |
2785 | blksize); | |
2786 | if ((guard_tag != sum)) { | |
2787 | err_type = BGS_GUARD_ERR_MASK; | |
2788 | goto out; | |
2789 | } | |
2790 | } | |
9c6aa9d7 JS |
2791 | |
2792 | /* Reference Tag checking */ | |
2793 | ref_tag = be32_to_cpu(src->ref_tag); | |
2794 | if (chk_ref && (ref_tag != start_ref_tag)) { | |
2795 | err_type = BGS_REFTAG_ERR_MASK; | |
2796 | goto out; | |
2797 | } | |
2798 | start_ref_tag++; | |
2799 | ||
2800 | /* App Tag checking */ | |
2801 | app_tag = src->app_tag; | |
2802 | if (chk_app && (app_tag != start_app_tag)) { | |
2803 | err_type = BGS_APPTAG_ERR_MASK; | |
2804 | goto out; | |
2805 | } | |
737d4248 JS |
2806 | skipit: |
2807 | len -= sizeof(struct scsi_dif_tuple); | |
2808 | if (len < 0) | |
2809 | len = 0; | |
2810 | src++; | |
2811 | ||
2812 | data_src += blksize; | |
2813 | data_len -= blksize; | |
2814 | ||
2815 | /* | |
2816 | * Are we at the end of the Data segment? | |
2817 | * The data segment is only used for Guard | |
2818 | * tag checking. | |
2819 | */ | |
2820 | if (chk_guard && (data_len == 0)) { | |
2821 | chk_guard = 0; | |
2822 | sgde = sg_next(sgde); | |
2823 | if (!sgde) | |
2824 | goto out; | |
2825 | ||
2826 | data_src = (uint8_t *)sg_virt(sgde); | |
2827 | data_len = sgde->length; | |
2828 | if ((data_len & (blksize - 1)) == 0) | |
2829 | chk_guard = 1; | |
2830 | } | |
2831 | } | |
2832 | ||
2833 | /* Goto the next Protection data segment */ | |
2834 | sgpe = sg_next(sgpe); | |
2835 | if (sgpe) { | |
2836 | src = (struct scsi_dif_tuple *)sg_virt(sgpe); | |
2837 | len = sgpe->length; | |
2838 | } else { | |
2839 | src = NULL; | |
2840 | } | |
2841 | protsegcnt--; | |
2842 | } | |
2843 | } | |
2844 | out: | |
2845 | if (err_type == BGS_GUARD_ERR_MASK) { | |
2846 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
2847 | 0x10, 0x1); | |
c6668cae JT |
2848 | cmd->result = DRIVER_SENSE << 24 | DID_ABORT << 16 | |
2849 | SAM_STAT_CHECK_CONDITION; | |
737d4248 JS |
2850 | phba->bg_guard_err_cnt++; |
2851 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, | |
2852 | "9069 BLKGRD: LBA %lx grd_tag error %x != %x\n", | |
2853 | (unsigned long)scsi_get_lba(cmd), | |
2854 | sum, guard_tag); | |
2855 | ||
2856 | } else if (err_type == BGS_REFTAG_ERR_MASK) { | |
2857 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
2858 | 0x10, 0x3); | |
c6668cae JT |
2859 | cmd->result = DRIVER_SENSE << 24 | DID_ABORT << 16 | |
2860 | SAM_STAT_CHECK_CONDITION; | |
737d4248 JS |
2861 | |
2862 | phba->bg_reftag_err_cnt++; | |
2863 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, | |
2864 | "9066 BLKGRD: LBA %lx ref_tag error %x != %x\n", | |
2865 | (unsigned long)scsi_get_lba(cmd), | |
2866 | ref_tag, start_ref_tag); | |
2867 | ||
2868 | } else if (err_type == BGS_APPTAG_ERR_MASK) { | |
2869 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
2870 | 0x10, 0x2); | |
c6668cae JT |
2871 | cmd->result = DRIVER_SENSE << 24 | DID_ABORT << 16 | |
2872 | SAM_STAT_CHECK_CONDITION; | |
737d4248 JS |
2873 | |
2874 | phba->bg_apptag_err_cnt++; | |
2875 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, | |
2876 | "9041 BLKGRD: LBA %lx app_tag error %x != %x\n", | |
2877 | (unsigned long)scsi_get_lba(cmd), | |
2878 | app_tag, start_app_tag); | |
2879 | } | |
2880 | } | |
2881 | ||
2882 | ||
e2a0a9d6 JS |
2883 | /* |
2884 | * This function checks for BlockGuard errors detected by | |
2885 | * the HBA. In case of errors, the ASC/ASCQ fields in the | |
2886 | * sense buffer will be set accordingly, paired with | |
2887 | * ILLEGAL_REQUEST to signal to the kernel that the HBA | |
2888 | * detected corruption. | |
2889 | * | |
2890 | * Returns: | |
2891 | * 0 - No error found | |
2892 | * 1 - BlockGuard error found | |
2893 | * -1 - Internal error (bad profile, ...etc) | |
2894 | */ | |
2895 | static int | |
c490850a JS |
2896 | lpfc_parse_bg_err(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd, |
2897 | struct lpfc_iocbq *pIocbOut) | |
e2a0a9d6 JS |
2898 | { |
2899 | struct scsi_cmnd *cmd = lpfc_cmd->pCmd; | |
2900 | struct sli3_bg_fields *bgf = &pIocbOut->iocb.unsli3.sli3_bg; | |
2901 | int ret = 0; | |
2902 | uint32_t bghm = bgf->bghm; | |
2903 | uint32_t bgstat = bgf->bgstat; | |
2904 | uint64_t failing_sector = 0; | |
2905 | ||
e2a0a9d6 | 2906 | if (lpfc_bgs_get_invalid_prof(bgstat)) { |
c6668cae | 2907 | cmd->result = DID_ERROR << 16; |
737d4248 JS |
2908 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
2909 | "9072 BLKGRD: Invalid BG Profile in cmd" | |
2910 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
2911 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
2912 | (unsigned long long)scsi_get_lba(cmd), | |
2913 | blk_rq_sectors(cmd->request), bgstat, bghm); | |
e2a0a9d6 JS |
2914 | ret = (-1); |
2915 | goto out; | |
2916 | } | |
2917 | ||
2918 | if (lpfc_bgs_get_uninit_dif_block(bgstat)) { | |
c6668cae | 2919 | cmd->result = DID_ERROR << 16; |
737d4248 JS |
2920 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
2921 | "9073 BLKGRD: Invalid BG PDIF Block in cmd" | |
2922 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
2923 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
2924 | (unsigned long long)scsi_get_lba(cmd), | |
2925 | blk_rq_sectors(cmd->request), bgstat, bghm); | |
e2a0a9d6 JS |
2926 | ret = (-1); |
2927 | goto out; | |
2928 | } | |
2929 | ||
2930 | if (lpfc_bgs_get_guard_err(bgstat)) { | |
2931 | ret = 1; | |
2932 | ||
2933 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
2934 | 0x10, 0x1); | |
c6668cae JT |
2935 | cmd->result = DRIVER_SENSE << 24 | DID_ABORT << 16 | |
2936 | SAM_STAT_CHECK_CONDITION; | |
e2a0a9d6 | 2937 | phba->bg_guard_err_cnt++; |
737d4248 JS |
2938 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
2939 | "9055 BLKGRD: Guard Tag error in cmd" | |
2940 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
2941 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
2942 | (unsigned long long)scsi_get_lba(cmd), | |
2943 | blk_rq_sectors(cmd->request), bgstat, bghm); | |
e2a0a9d6 JS |
2944 | } |
2945 | ||
2946 | if (lpfc_bgs_get_reftag_err(bgstat)) { | |
2947 | ret = 1; | |
2948 | ||
2949 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
2950 | 0x10, 0x3); | |
c6668cae JT |
2951 | cmd->result = DRIVER_SENSE << 24 | DID_ABORT << 16 | |
2952 | SAM_STAT_CHECK_CONDITION; | |
e2a0a9d6 JS |
2953 | |
2954 | phba->bg_reftag_err_cnt++; | |
737d4248 JS |
2955 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
2956 | "9056 BLKGRD: Ref Tag error in cmd" | |
2957 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
2958 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
2959 | (unsigned long long)scsi_get_lba(cmd), | |
2960 | blk_rq_sectors(cmd->request), bgstat, bghm); | |
e2a0a9d6 JS |
2961 | } |
2962 | ||
2963 | if (lpfc_bgs_get_apptag_err(bgstat)) { | |
2964 | ret = 1; | |
2965 | ||
2966 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
2967 | 0x10, 0x2); | |
c6668cae JT |
2968 | cmd->result = DRIVER_SENSE << 24 | DID_ABORT << 16 | |
2969 | SAM_STAT_CHECK_CONDITION; | |
e2a0a9d6 JS |
2970 | |
2971 | phba->bg_apptag_err_cnt++; | |
737d4248 JS |
2972 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
2973 | "9061 BLKGRD: App Tag error in cmd" | |
2974 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
2975 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
2976 | (unsigned long long)scsi_get_lba(cmd), | |
2977 | blk_rq_sectors(cmd->request), bgstat, bghm); | |
e2a0a9d6 JS |
2978 | } |
2979 | ||
2980 | if (lpfc_bgs_get_hi_water_mark_present(bgstat)) { | |
2981 | /* | |
2982 | * setup sense data descriptor 0 per SPC-4 as an information | |
7c56b9fd JS |
2983 | * field, and put the failing LBA in it. |
2984 | * This code assumes there was also a guard/app/ref tag error | |
2985 | * indication. | |
e2a0a9d6 | 2986 | */ |
7c56b9fd JS |
2987 | cmd->sense_buffer[7] = 0xc; /* Additional sense length */ |
2988 | cmd->sense_buffer[8] = 0; /* Information descriptor type */ | |
2989 | cmd->sense_buffer[9] = 0xa; /* Additional descriptor length */ | |
2990 | cmd->sense_buffer[10] = 0x80; /* Validity bit */ | |
acd6859b JS |
2991 | |
2992 | /* bghm is a "on the wire" FC frame based count */ | |
2993 | switch (scsi_get_prot_op(cmd)) { | |
2994 | case SCSI_PROT_READ_INSERT: | |
2995 | case SCSI_PROT_WRITE_STRIP: | |
2996 | bghm /= cmd->device->sector_size; | |
2997 | break; | |
2998 | case SCSI_PROT_READ_STRIP: | |
2999 | case SCSI_PROT_WRITE_INSERT: | |
3000 | case SCSI_PROT_READ_PASS: | |
3001 | case SCSI_PROT_WRITE_PASS: | |
3002 | bghm /= (cmd->device->sector_size + | |
3003 | sizeof(struct scsi_dif_tuple)); | |
3004 | break; | |
3005 | } | |
e2a0a9d6 JS |
3006 | |
3007 | failing_sector = scsi_get_lba(cmd); | |
3008 | failing_sector += bghm; | |
3009 | ||
7c56b9fd JS |
3010 | /* Descriptor Information */ |
3011 | put_unaligned_be64(failing_sector, &cmd->sense_buffer[12]); | |
e2a0a9d6 JS |
3012 | } |
3013 | ||
3014 | if (!ret) { | |
3015 | /* No error was reported - problem in FW? */ | |
737d4248 JS |
3016 | lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG, |
3017 | "9057 BLKGRD: Unknown error in cmd" | |
3018 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
3019 | "bgstat=x%x bghm=x%x\n", cmd->cmnd[0], | |
3020 | (unsigned long long)scsi_get_lba(cmd), | |
3021 | blk_rq_sectors(cmd->request), bgstat, bghm); | |
3022 | ||
3023 | /* Calcuate what type of error it was */ | |
3024 | lpfc_calc_bg_err(phba, lpfc_cmd); | |
e2a0a9d6 | 3025 | } |
e2a0a9d6 JS |
3026 | out: |
3027 | return ret; | |
dea3101e JB |
3028 | } |
3029 | ||
da0436e9 JS |
3030 | /** |
3031 | * lpfc_scsi_prep_dma_buf_s4 - DMA mapping for scsi buffer to SLI4 IF spec | |
3032 | * @phba: The Hba for which this call is being executed. | |
3033 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
3034 | * | |
3035 | * This routine does the pci dma mapping for scatter-gather list of scsi cmnd | |
3036 | * field of @lpfc_cmd for device with SLI-4 interface spec. | |
3037 | * | |
3038 | * Return codes: | |
5e0e2318 JS |
3039 | * 2 - Error - Do not retry |
3040 | * 1 - Error - Retry | |
6c8eea54 | 3041 | * 0 - Success |
da0436e9 JS |
3042 | **/ |
3043 | static int | |
c490850a | 3044 | lpfc_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd) |
da0436e9 JS |
3045 | { |
3046 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
3047 | struct scatterlist *sgel = NULL; | |
3048 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
0794d601 | 3049 | struct sli4_sge *sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl; |
fedd3b7b | 3050 | struct sli4_sge *first_data_sgl; |
da0436e9 JS |
3051 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; |
3052 | dma_addr_t physaddr; | |
3053 | uint32_t num_bde = 0; | |
3054 | uint32_t dma_len; | |
3055 | uint32_t dma_offset = 0; | |
d79c9e9d | 3056 | int nseg, i, j; |
fedd3b7b | 3057 | struct ulp_bde64 *bde; |
d79c9e9d JS |
3058 | bool lsp_just_set = false; |
3059 | struct sli4_hybrid_sgl *sgl_xtra = NULL; | |
da0436e9 JS |
3060 | |
3061 | /* | |
3062 | * There are three possibilities here - use scatter-gather segment, use | |
3063 | * the single mapping, or neither. Start the lpfc command prep by | |
3064 | * bumping the bpl beyond the fcp_cmnd and fcp_rsp regions to the first | |
3065 | * data bde entry. | |
3066 | */ | |
3067 | if (scsi_sg_count(scsi_cmnd)) { | |
3068 | /* | |
3069 | * The driver stores the segment count returned from pci_map_sg | |
3070 | * because this a count of dma-mappings used to map the use_sg | |
3071 | * pages. They are not guaranteed to be the same for those | |
3072 | * architectures that implement an IOMMU. | |
3073 | */ | |
3074 | ||
3075 | nseg = scsi_dma_map(scsi_cmnd); | |
5116fbf1 | 3076 | if (unlikely(nseg <= 0)) |
da0436e9 JS |
3077 | return 1; |
3078 | sgl += 1; | |
3079 | /* clear the last flag in the fcp_rsp map entry */ | |
3080 | sgl->word2 = le32_to_cpu(sgl->word2); | |
3081 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
3082 | sgl->word2 = cpu_to_le32(sgl->word2); | |
3083 | sgl += 1; | |
fedd3b7b | 3084 | first_data_sgl = sgl; |
da0436e9 | 3085 | lpfc_cmd->seg_cnt = nseg; |
d79c9e9d JS |
3086 | if (!phba->cfg_xpsgl && |
3087 | lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) { | |
6a9c52cf JS |
3088 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, "9074 BLKGRD:" |
3089 | " %s: Too many sg segments from " | |
3090 | "dma_map_sg. Config %d, seg_cnt %d\n", | |
3091 | __func__, phba->cfg_sg_seg_cnt, | |
da0436e9 | 3092 | lpfc_cmd->seg_cnt); |
5e0e2318 | 3093 | WARN_ON_ONCE(lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt); |
96f7077f | 3094 | lpfc_cmd->seg_cnt = 0; |
da0436e9 | 3095 | scsi_dma_unmap(scsi_cmnd); |
5e0e2318 | 3096 | return 2; |
da0436e9 JS |
3097 | } |
3098 | ||
3099 | /* | |
3100 | * The driver established a maximum scatter-gather segment count | |
3101 | * during probe that limits the number of sg elements in any | |
3102 | * single scsi command. Just run through the seg_cnt and format | |
3103 | * the sge's. | |
3104 | * When using SLI-3 the driver will try to fit all the BDEs into | |
3105 | * the IOCB. If it can't then the BDEs get added to a BPL as it | |
3106 | * does for SLI-2 mode. | |
3107 | */ | |
d79c9e9d JS |
3108 | |
3109 | /* for tracking segment boundaries */ | |
3110 | sgel = scsi_sglist(scsi_cmnd); | |
3111 | j = 2; | |
3112 | for (i = 0; i < nseg; i++) { | |
3113 | sgl->word2 = 0; | |
3114 | if ((num_bde + 1) == nseg) { | |
da0436e9 | 3115 | bf_set(lpfc_sli4_sge_last, sgl, 1); |
d79c9e9d JS |
3116 | bf_set(lpfc_sli4_sge_type, sgl, |
3117 | LPFC_SGE_TYPE_DATA); | |
3118 | } else { | |
da0436e9 | 3119 | bf_set(lpfc_sli4_sge_last, sgl, 0); |
d79c9e9d JS |
3120 | |
3121 | /* do we need to expand the segment */ | |
3122 | if (!lsp_just_set && | |
3123 | !((j + 1) % phba->border_sge_num) && | |
3124 | ((nseg - 1) != i)) { | |
3125 | /* set LSP type */ | |
3126 | bf_set(lpfc_sli4_sge_type, sgl, | |
3127 | LPFC_SGE_TYPE_LSP); | |
3128 | ||
3129 | sgl_xtra = lpfc_get_sgl_per_hdwq( | |
3130 | phba, lpfc_cmd); | |
3131 | ||
3132 | if (unlikely(!sgl_xtra)) { | |
3133 | lpfc_cmd->seg_cnt = 0; | |
3134 | scsi_dma_unmap(scsi_cmnd); | |
3135 | return 1; | |
3136 | } | |
3137 | sgl->addr_lo = cpu_to_le32(putPaddrLow( | |
3138 | sgl_xtra->dma_phys_sgl)); | |
3139 | sgl->addr_hi = cpu_to_le32(putPaddrHigh( | |
3140 | sgl_xtra->dma_phys_sgl)); | |
3141 | ||
3142 | } else { | |
3143 | bf_set(lpfc_sli4_sge_type, sgl, | |
3144 | LPFC_SGE_TYPE_DATA); | |
3145 | } | |
3146 | } | |
3147 | ||
3148 | if (!(bf_get(lpfc_sli4_sge_type, sgl) & | |
3149 | LPFC_SGE_TYPE_LSP)) { | |
3150 | if ((nseg - 1) == i) | |
3151 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
3152 | ||
3153 | physaddr = sg_dma_address(sgel); | |
3154 | dma_len = sg_dma_len(sgel); | |
3155 | sgl->addr_lo = cpu_to_le32(putPaddrLow( | |
3156 | physaddr)); | |
3157 | sgl->addr_hi = cpu_to_le32(putPaddrHigh( | |
3158 | physaddr)); | |
3159 | ||
3160 | bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); | |
3161 | sgl->word2 = cpu_to_le32(sgl->word2); | |
3162 | sgl->sge_len = cpu_to_le32(dma_len); | |
3163 | ||
3164 | dma_offset += dma_len; | |
3165 | sgel = sg_next(sgel); | |
3166 | ||
3167 | sgl++; | |
3168 | lsp_just_set = false; | |
3169 | ||
3170 | } else { | |
3171 | sgl->word2 = cpu_to_le32(sgl->word2); | |
3172 | sgl->sge_len = cpu_to_le32( | |
3173 | phba->cfg_sg_dma_buf_size); | |
3174 | ||
3175 | sgl = (struct sli4_sge *)sgl_xtra->dma_sgl; | |
3176 | i = i - 1; | |
3177 | ||
3178 | lsp_just_set = true; | |
3179 | } | |
3180 | ||
3181 | j++; | |
da0436e9 | 3182 | } |
0bc2b7c5 JS |
3183 | /* |
3184 | * Setup the first Payload BDE. For FCoE we just key off | |
414abe0a JS |
3185 | * Performance Hints, for FC we use lpfc_enable_pbde. |
3186 | * We populate words 13-15 of IOCB/WQE. | |
0bc2b7c5 JS |
3187 | */ |
3188 | if ((phba->sli3_options & LPFC_SLI4_PERFH_ENABLED) || | |
414abe0a | 3189 | phba->cfg_enable_pbde) { |
fedd3b7b | 3190 | bde = (struct ulp_bde64 *) |
414abe0a | 3191 | &(iocb_cmd->unsli3.sli3Words[5]); |
fedd3b7b JS |
3192 | bde->addrLow = first_data_sgl->addr_lo; |
3193 | bde->addrHigh = first_data_sgl->addr_hi; | |
3194 | bde->tus.f.bdeSize = | |
3195 | le32_to_cpu(first_data_sgl->sge_len); | |
3196 | bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
3197 | bde->tus.w = cpu_to_le32(bde->tus.w); | |
3198 | } | |
da0436e9 JS |
3199 | } else { |
3200 | sgl += 1; | |
3201 | /* clear the last flag in the fcp_rsp map entry */ | |
3202 | sgl->word2 = le32_to_cpu(sgl->word2); | |
3203 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
3204 | sgl->word2 = cpu_to_le32(sgl->word2); | |
414abe0a JS |
3205 | |
3206 | if ((phba->sli3_options & LPFC_SLI4_PERFH_ENABLED) || | |
3207 | phba->cfg_enable_pbde) { | |
3208 | bde = (struct ulp_bde64 *) | |
3209 | &(iocb_cmd->unsli3.sli3Words[5]); | |
3210 | memset(bde, 0, (sizeof(uint32_t) * 3)); | |
3211 | } | |
da0436e9 JS |
3212 | } |
3213 | ||
3214 | /* | |
3215 | * Finish initializing those IOCB fields that are dependent on the | |
3216 | * scsi_cmnd request_buffer. Note that for SLI-2 the bdeSize is | |
3217 | * explicitly reinitialized. | |
3218 | * all iocb memory resources are reused. | |
3219 | */ | |
3220 | fcp_cmnd->fcpDl = cpu_to_be32(scsi_bufflen(scsi_cmnd)); | |
3221 | ||
3222 | /* | |
3223 | * Due to difference in data length between DIF/non-DIF paths, | |
3224 | * we need to set word 4 of IOCB here | |
3225 | */ | |
3226 | iocb_cmd->un.fcpi.fcpi_parm = scsi_bufflen(scsi_cmnd); | |
1ba981fd JS |
3227 | |
3228 | /* | |
3229 | * If the OAS driver feature is enabled and the lun is enabled for | |
3230 | * OAS, set the oas iocb related flags. | |
3231 | */ | |
f38fa0bb | 3232 | if ((phba->cfg_fof) && ((struct lpfc_device_data *) |
c92c841c | 3233 | scsi_cmnd->device->hostdata)->oas_enabled) { |
9bd2bff5 | 3234 | lpfc_cmd->cur_iocbq.iocb_flag |= (LPFC_IO_OAS | LPFC_IO_FOF); |
c92c841c JS |
3235 | lpfc_cmd->cur_iocbq.priority = ((struct lpfc_device_data *) |
3236 | scsi_cmnd->device->hostdata)->priority; | |
3237 | } | |
c490850a | 3238 | |
da0436e9 JS |
3239 | return 0; |
3240 | } | |
3241 | ||
acd6859b JS |
3242 | /** |
3243 | * lpfc_bg_scsi_prep_dma_buf_s4 - DMA mapping for scsi buffer to SLI4 IF spec | |
3244 | * @phba: The Hba for which this call is being executed. | |
3245 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
3246 | * | |
3247 | * This is the protection/DIF aware version of | |
3248 | * lpfc_scsi_prep_dma_buf(). It may be a good idea to combine the | |
3249 | * two functions eventually, but for now, it's here | |
5e0e2318 JS |
3250 | * Return codes: |
3251 | * 2 - Error - Do not retry | |
3252 | * 1 - Error - Retry | |
3253 | * 0 - Success | |
acd6859b JS |
3254 | **/ |
3255 | static int | |
3256 | lpfc_bg_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, | |
c490850a | 3257 | struct lpfc_io_buf *lpfc_cmd) |
acd6859b JS |
3258 | { |
3259 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
3260 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
0794d601 | 3261 | struct sli4_sge *sgl = (struct sli4_sge *)(lpfc_cmd->dma_sgl); |
acd6859b | 3262 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; |
96f7077f | 3263 | uint32_t num_sge = 0; |
acd6859b JS |
3264 | int datasegcnt, protsegcnt, datadir = scsi_cmnd->sc_data_direction; |
3265 | int prot_group_type = 0; | |
3266 | int fcpdl; | |
5e0e2318 | 3267 | int ret = 1; |
7c4042a4 | 3268 | struct lpfc_vport *vport = phba->pport; |
acd6859b JS |
3269 | |
3270 | /* | |
3271 | * Start the lpfc command prep by bumping the sgl beyond fcp_cmnd | |
96f7077f | 3272 | * fcp_rsp regions to the first data sge entry |
acd6859b JS |
3273 | */ |
3274 | if (scsi_sg_count(scsi_cmnd)) { | |
3275 | /* | |
3276 | * The driver stores the segment count returned from pci_map_sg | |
3277 | * because this a count of dma-mappings used to map the use_sg | |
3278 | * pages. They are not guaranteed to be the same for those | |
3279 | * architectures that implement an IOMMU. | |
3280 | */ | |
3281 | datasegcnt = dma_map_sg(&phba->pcidev->dev, | |
3282 | scsi_sglist(scsi_cmnd), | |
3283 | scsi_sg_count(scsi_cmnd), datadir); | |
3284 | if (unlikely(!datasegcnt)) | |
3285 | return 1; | |
3286 | ||
3287 | sgl += 1; | |
3288 | /* clear the last flag in the fcp_rsp map entry */ | |
3289 | sgl->word2 = le32_to_cpu(sgl->word2); | |
3290 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
3291 | sgl->word2 = cpu_to_le32(sgl->word2); | |
3292 | ||
3293 | sgl += 1; | |
3294 | lpfc_cmd->seg_cnt = datasegcnt; | |
96f7077f JS |
3295 | |
3296 | /* First check if data segment count from SCSI Layer is good */ | |
d79c9e9d JS |
3297 | if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt && |
3298 | !phba->cfg_xpsgl) { | |
5e0e2318 JS |
3299 | WARN_ON_ONCE(lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt); |
3300 | ret = 2; | |
96f7077f | 3301 | goto err; |
5e0e2318 | 3302 | } |
acd6859b JS |
3303 | |
3304 | prot_group_type = lpfc_prot_group_type(phba, scsi_cmnd); | |
3305 | ||
3306 | switch (prot_group_type) { | |
3307 | case LPFC_PG_TYPE_NO_DIF: | |
96f7077f | 3308 | /* Here we need to add a DISEED to the count */ |
d79c9e9d JS |
3309 | if (((lpfc_cmd->seg_cnt + 1) > |
3310 | phba->cfg_total_seg_cnt) && | |
3311 | !phba->cfg_xpsgl) { | |
5e0e2318 | 3312 | ret = 2; |
96f7077f | 3313 | goto err; |
5e0e2318 | 3314 | } |
96f7077f JS |
3315 | |
3316 | num_sge = lpfc_bg_setup_sgl(phba, scsi_cmnd, sgl, | |
d79c9e9d | 3317 | datasegcnt, lpfc_cmd); |
96f7077f | 3318 | |
acd6859b | 3319 | /* we should have 2 or more entries in buffer list */ |
5e0e2318 JS |
3320 | if (num_sge < 2) { |
3321 | ret = 2; | |
acd6859b | 3322 | goto err; |
5e0e2318 | 3323 | } |
acd6859b | 3324 | break; |
96f7077f JS |
3325 | |
3326 | case LPFC_PG_TYPE_DIF_BUF: | |
acd6859b JS |
3327 | /* |
3328 | * This type indicates that protection buffers are | |
3329 | * passed to the driver, so that needs to be prepared | |
3330 | * for DMA | |
3331 | */ | |
3332 | protsegcnt = dma_map_sg(&phba->pcidev->dev, | |
3333 | scsi_prot_sglist(scsi_cmnd), | |
3334 | scsi_prot_sg_count(scsi_cmnd), datadir); | |
3335 | if (unlikely(!protsegcnt)) { | |
3336 | scsi_dma_unmap(scsi_cmnd); | |
3337 | return 1; | |
3338 | } | |
3339 | ||
3340 | lpfc_cmd->prot_seg_cnt = protsegcnt; | |
96f7077f JS |
3341 | /* |
3342 | * There is a minimun of 3 SGEs used for every | |
3343 | * protection data segment. | |
3344 | */ | |
d79c9e9d JS |
3345 | if (((lpfc_cmd->prot_seg_cnt * 3) > |
3346 | (phba->cfg_total_seg_cnt - 2)) && | |
3347 | !phba->cfg_xpsgl) { | |
5e0e2318 | 3348 | ret = 2; |
96f7077f | 3349 | goto err; |
5e0e2318 | 3350 | } |
acd6859b | 3351 | |
96f7077f | 3352 | num_sge = lpfc_bg_setup_sgl_prot(phba, scsi_cmnd, sgl, |
d79c9e9d | 3353 | datasegcnt, protsegcnt, lpfc_cmd); |
96f7077f | 3354 | |
acd6859b | 3355 | /* we should have 3 or more entries in buffer list */ |
d79c9e9d JS |
3356 | if (num_sge < 3 || |
3357 | (num_sge > phba->cfg_total_seg_cnt && | |
3358 | !phba->cfg_xpsgl)) { | |
5e0e2318 | 3359 | ret = 2; |
acd6859b | 3360 | goto err; |
5e0e2318 | 3361 | } |
acd6859b | 3362 | break; |
96f7077f | 3363 | |
acd6859b JS |
3364 | case LPFC_PG_TYPE_INVALID: |
3365 | default: | |
96f7077f JS |
3366 | scsi_dma_unmap(scsi_cmnd); |
3367 | lpfc_cmd->seg_cnt = 0; | |
3368 | ||
acd6859b JS |
3369 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, |
3370 | "9083 Unexpected protection group %i\n", | |
3371 | prot_group_type); | |
5e0e2318 | 3372 | return 2; |
acd6859b JS |
3373 | } |
3374 | } | |
3375 | ||
8012cc38 JS |
3376 | switch (scsi_get_prot_op(scsi_cmnd)) { |
3377 | case SCSI_PROT_WRITE_STRIP: | |
3378 | case SCSI_PROT_READ_STRIP: | |
3379 | lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_IO_DIF_STRIP; | |
3380 | break; | |
3381 | case SCSI_PROT_WRITE_INSERT: | |
3382 | case SCSI_PROT_READ_INSERT: | |
3383 | lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_IO_DIF_INSERT; | |
3384 | break; | |
3385 | case SCSI_PROT_WRITE_PASS: | |
3386 | case SCSI_PROT_READ_PASS: | |
3387 | lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_IO_DIF_PASS; | |
3388 | break; | |
3389 | } | |
3390 | ||
acd6859b | 3391 | fcpdl = lpfc_bg_scsi_adjust_dl(phba, lpfc_cmd); |
acd6859b JS |
3392 | fcp_cmnd->fcpDl = be32_to_cpu(fcpdl); |
3393 | ||
3394 | /* | |
3395 | * Due to difference in data length between DIF/non-DIF paths, | |
3396 | * we need to set word 4 of IOCB here | |
3397 | */ | |
3398 | iocb_cmd->un.fcpi.fcpi_parm = fcpdl; | |
acd6859b | 3399 | |
7c4042a4 JS |
3400 | /* |
3401 | * For First burst, we may need to adjust the initial transfer | |
3402 | * length for DIF | |
3403 | */ | |
3404 | if (iocb_cmd->un.fcpi.fcpi_XRdy && | |
3405 | (fcpdl < vport->cfg_first_burst_size)) | |
3406 | iocb_cmd->un.fcpi.fcpi_XRdy = fcpdl; | |
3407 | ||
9bd2bff5 JS |
3408 | /* |
3409 | * If the OAS driver feature is enabled and the lun is enabled for | |
3410 | * OAS, set the oas iocb related flags. | |
3411 | */ | |
3412 | if ((phba->cfg_fof) && ((struct lpfc_device_data *) | |
3413 | scsi_cmnd->device->hostdata)->oas_enabled) | |
3414 | lpfc_cmd->cur_iocbq.iocb_flag |= (LPFC_IO_OAS | LPFC_IO_FOF); | |
3415 | ||
acd6859b JS |
3416 | return 0; |
3417 | err: | |
96f7077f JS |
3418 | if (lpfc_cmd->seg_cnt) |
3419 | scsi_dma_unmap(scsi_cmnd); | |
3420 | if (lpfc_cmd->prot_seg_cnt) | |
3421 | dma_unmap_sg(&phba->pcidev->dev, scsi_prot_sglist(scsi_cmnd), | |
3422 | scsi_prot_sg_count(scsi_cmnd), | |
3423 | scsi_cmnd->sc_data_direction); | |
3424 | ||
acd6859b | 3425 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, |
96f7077f JS |
3426 | "9084 Cannot setup S/G List for HBA" |
3427 | "IO segs %d/%d SGL %d SCSI %d: %d %d\n", | |
3428 | lpfc_cmd->seg_cnt, lpfc_cmd->prot_seg_cnt, | |
3429 | phba->cfg_total_seg_cnt, phba->cfg_sg_seg_cnt, | |
3430 | prot_group_type, num_sge); | |
3431 | ||
3432 | lpfc_cmd->seg_cnt = 0; | |
3433 | lpfc_cmd->prot_seg_cnt = 0; | |
5e0e2318 | 3434 | return ret; |
acd6859b JS |
3435 | } |
3436 | ||
3772a991 JS |
3437 | /** |
3438 | * lpfc_scsi_prep_dma_buf - Wrapper function for DMA mapping of scsi buffer | |
3439 | * @phba: The Hba for which this call is being executed. | |
3440 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
3441 | * | |
3442 | * This routine wraps the actual DMA mapping function pointer from the | |
3443 | * lpfc_hba struct. | |
3444 | * | |
3445 | * Return codes: | |
6c8eea54 JS |
3446 | * 1 - Error |
3447 | * 0 - Success | |
3772a991 JS |
3448 | **/ |
3449 | static inline int | |
c490850a | 3450 | lpfc_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd) |
3772a991 JS |
3451 | { |
3452 | return phba->lpfc_scsi_prep_dma_buf(phba, lpfc_cmd); | |
3453 | } | |
3454 | ||
acd6859b JS |
3455 | /** |
3456 | * lpfc_bg_scsi_prep_dma_buf - Wrapper function for DMA mapping of scsi buffer | |
3457 | * using BlockGuard. | |
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 routine wraps the actual DMA mapping function pointer from the | |
3462 | * lpfc_hba struct. | |
3463 | * | |
3464 | * Return codes: | |
3465 | * 1 - Error | |
3466 | * 0 - Success | |
3467 | **/ | |
3468 | static inline int | |
c490850a | 3469 | lpfc_bg_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd) |
acd6859b JS |
3470 | { |
3471 | return phba->lpfc_bg_scsi_prep_dma_buf(phba, lpfc_cmd); | |
3472 | } | |
3473 | ||
ea2151b4 | 3474 | /** |
3621a710 | 3475 | * lpfc_send_scsi_error_event - Posts an event when there is SCSI error |
ea2151b4 JS |
3476 | * @phba: Pointer to hba context object. |
3477 | * @vport: Pointer to vport object. | |
3478 | * @lpfc_cmd: Pointer to lpfc scsi command which reported the error. | |
3479 | * @rsp_iocb: Pointer to response iocb object which reported error. | |
3480 | * | |
3481 | * This function posts an event when there is a SCSI command reporting | |
3482 | * error from the scsi device. | |
3483 | **/ | |
3484 | static void | |
3485 | lpfc_send_scsi_error_event(struct lpfc_hba *phba, struct lpfc_vport *vport, | |
c490850a | 3486 | struct lpfc_io_buf *lpfc_cmd, struct lpfc_iocbq *rsp_iocb) { |
ea2151b4 JS |
3487 | struct scsi_cmnd *cmnd = lpfc_cmd->pCmd; |
3488 | struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp; | |
3489 | uint32_t resp_info = fcprsp->rspStatus2; | |
3490 | uint32_t scsi_status = fcprsp->rspStatus3; | |
3491 | uint32_t fcpi_parm = rsp_iocb->iocb.un.fcpi.fcpi_parm; | |
3492 | struct lpfc_fast_path_event *fast_path_evt = NULL; | |
3493 | struct lpfc_nodelist *pnode = lpfc_cmd->rdata->pnode; | |
3494 | unsigned long flags; | |
3495 | ||
5989b8d4 JS |
3496 | if (!pnode || !NLP_CHK_NODE_ACT(pnode)) |
3497 | return; | |
3498 | ||
ea2151b4 JS |
3499 | /* If there is queuefull or busy condition send a scsi event */ |
3500 | if ((cmnd->result == SAM_STAT_TASK_SET_FULL) || | |
3501 | (cmnd->result == SAM_STAT_BUSY)) { | |
3502 | fast_path_evt = lpfc_alloc_fast_evt(phba); | |
3503 | if (!fast_path_evt) | |
3504 | return; | |
3505 | fast_path_evt->un.scsi_evt.event_type = | |
3506 | FC_REG_SCSI_EVENT; | |
3507 | fast_path_evt->un.scsi_evt.subcategory = | |
3508 | (cmnd->result == SAM_STAT_TASK_SET_FULL) ? | |
3509 | LPFC_EVENT_QFULL : LPFC_EVENT_DEVBSY; | |
3510 | fast_path_evt->un.scsi_evt.lun = cmnd->device->lun; | |
3511 | memcpy(&fast_path_evt->un.scsi_evt.wwpn, | |
3512 | &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
3513 | memcpy(&fast_path_evt->un.scsi_evt.wwnn, | |
3514 | &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
3515 | } else if ((resp_info & SNS_LEN_VALID) && fcprsp->rspSnsLen && | |
3516 | ((cmnd->cmnd[0] == READ_10) || (cmnd->cmnd[0] == WRITE_10))) { | |
3517 | fast_path_evt = lpfc_alloc_fast_evt(phba); | |
3518 | if (!fast_path_evt) | |
3519 | return; | |
3520 | fast_path_evt->un.check_cond_evt.scsi_event.event_type = | |
3521 | FC_REG_SCSI_EVENT; | |
3522 | fast_path_evt->un.check_cond_evt.scsi_event.subcategory = | |
3523 | LPFC_EVENT_CHECK_COND; | |
3524 | fast_path_evt->un.check_cond_evt.scsi_event.lun = | |
3525 | cmnd->device->lun; | |
3526 | memcpy(&fast_path_evt->un.check_cond_evt.scsi_event.wwpn, | |
3527 | &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
3528 | memcpy(&fast_path_evt->un.check_cond_evt.scsi_event.wwnn, | |
3529 | &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
3530 | fast_path_evt->un.check_cond_evt.sense_key = | |
3531 | cmnd->sense_buffer[2] & 0xf; | |
3532 | fast_path_evt->un.check_cond_evt.asc = cmnd->sense_buffer[12]; | |
3533 | fast_path_evt->un.check_cond_evt.ascq = cmnd->sense_buffer[13]; | |
3534 | } else if ((cmnd->sc_data_direction == DMA_FROM_DEVICE) && | |
3535 | fcpi_parm && | |
3536 | ((be32_to_cpu(fcprsp->rspResId) != fcpi_parm) || | |
3537 | ((scsi_status == SAM_STAT_GOOD) && | |
3538 | !(resp_info & (RESID_UNDER | RESID_OVER))))) { | |
3539 | /* | |
3540 | * If status is good or resid does not match with fcp_param and | |
3541 | * there is valid fcpi_parm, then there is a read_check error | |
3542 | */ | |
3543 | fast_path_evt = lpfc_alloc_fast_evt(phba); | |
3544 | if (!fast_path_evt) | |
3545 | return; | |
3546 | fast_path_evt->un.read_check_error.header.event_type = | |
3547 | FC_REG_FABRIC_EVENT; | |
3548 | fast_path_evt->un.read_check_error.header.subcategory = | |
3549 | LPFC_EVENT_FCPRDCHKERR; | |
3550 | memcpy(&fast_path_evt->un.read_check_error.header.wwpn, | |
3551 | &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
3552 | memcpy(&fast_path_evt->un.read_check_error.header.wwnn, | |
3553 | &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
3554 | fast_path_evt->un.read_check_error.lun = cmnd->device->lun; | |
3555 | fast_path_evt->un.read_check_error.opcode = cmnd->cmnd[0]; | |
3556 | fast_path_evt->un.read_check_error.fcpiparam = | |
3557 | fcpi_parm; | |
3558 | } else | |
3559 | return; | |
3560 | ||
3561 | fast_path_evt->vport = vport; | |
3562 | spin_lock_irqsave(&phba->hbalock, flags); | |
3563 | list_add_tail(&fast_path_evt->work_evt.evt_listp, &phba->work_list); | |
3564 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
3565 | lpfc_worker_wake_up(phba); | |
3566 | return; | |
3567 | } | |
9bad7671 JS |
3568 | |
3569 | /** | |
f1126688 | 3570 | * lpfc_scsi_unprep_dma_buf - Un-map DMA mapping of SG-list for dev |
3772a991 | 3571 | * @phba: The HBA for which this call is being executed. |
9bad7671 JS |
3572 | * @psb: The scsi buffer which is going to be un-mapped. |
3573 | * | |
3574 | * This routine does DMA un-mapping of scatter gather list of scsi command | |
3772a991 | 3575 | * field of @lpfc_cmd for device with SLI-3 interface spec. |
9bad7671 | 3576 | **/ |
bcf4dbfa | 3577 | static void |
c490850a | 3578 | lpfc_scsi_unprep_dma_buf(struct lpfc_hba *phba, struct lpfc_io_buf *psb) |
bcf4dbfa JS |
3579 | { |
3580 | /* | |
3581 | * There are only two special cases to consider. (1) the scsi command | |
3582 | * requested scatter-gather usage or (2) the scsi command allocated | |
3583 | * a request buffer, but did not request use_sg. There is a third | |
3584 | * case, but it does not require resource deallocation. | |
3585 | */ | |
a0b4f78f FT |
3586 | if (psb->seg_cnt > 0) |
3587 | scsi_dma_unmap(psb->pCmd); | |
e2a0a9d6 JS |
3588 | if (psb->prot_seg_cnt > 0) |
3589 | dma_unmap_sg(&phba->pcidev->dev, scsi_prot_sglist(psb->pCmd), | |
3590 | scsi_prot_sg_count(psb->pCmd), | |
3591 | psb->pCmd->sc_data_direction); | |
bcf4dbfa JS |
3592 | } |
3593 | ||
9bad7671 | 3594 | /** |
3621a710 | 3595 | * lpfc_handler_fcp_err - FCP response handler |
9bad7671 | 3596 | * @vport: The virtual port for which this call is being executed. |
c490850a | 3597 | * @lpfc_cmd: Pointer to lpfc_io_buf data structure. |
9bad7671 JS |
3598 | * @rsp_iocb: The response IOCB which contains FCP error. |
3599 | * | |
3600 | * This routine is called to process response IOCB with status field | |
3601 | * IOSTAT_FCP_RSP_ERROR. This routine sets result field of scsi command | |
3602 | * based upon SCSI and FCP error. | |
3603 | **/ | |
dea3101e | 3604 | static void |
c490850a | 3605 | lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_io_buf *lpfc_cmd, |
2e0fef85 | 3606 | struct lpfc_iocbq *rsp_iocb) |
dea3101e | 3607 | { |
5afab6bb | 3608 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
3609 | struct scsi_cmnd *cmnd = lpfc_cmd->pCmd; |
3610 | struct fcp_cmnd *fcpcmd = lpfc_cmd->fcp_cmnd; | |
3611 | struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp; | |
7054a606 | 3612 | uint32_t fcpi_parm = rsp_iocb->iocb.un.fcpi.fcpi_parm; |
dea3101e JB |
3613 | uint32_t resp_info = fcprsp->rspStatus2; |
3614 | uint32_t scsi_status = fcprsp->rspStatus3; | |
c7743956 | 3615 | uint32_t *lp; |
dea3101e JB |
3616 | uint32_t host_status = DID_OK; |
3617 | uint32_t rsplen = 0; | |
5afab6bb | 3618 | uint32_t fcpDl; |
c7743956 | 3619 | uint32_t logit = LOG_FCP | LOG_FCP_ERROR; |
dea3101e | 3620 | |
ea2151b4 | 3621 | |
dea3101e JB |
3622 | /* |
3623 | * If this is a task management command, there is no | |
3624 | * scsi packet associated with this lpfc_cmd. The driver | |
3625 | * consumes it. | |
3626 | */ | |
3627 | if (fcpcmd->fcpCntl2) { | |
3628 | scsi_status = 0; | |
3629 | goto out; | |
3630 | } | |
3631 | ||
6a9c52cf JS |
3632 | if (resp_info & RSP_LEN_VALID) { |
3633 | rsplen = be32_to_cpu(fcprsp->rspRspLen); | |
e40a02c1 | 3634 | if (rsplen != 0 && rsplen != 4 && rsplen != 8) { |
6a9c52cf JS |
3635 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
3636 | "2719 Invalid response length: " | |
9cb78c16 | 3637 | "tgt x%x lun x%llx cmnd x%x rsplen x%x\n", |
6a9c52cf JS |
3638 | cmnd->device->id, |
3639 | cmnd->device->lun, cmnd->cmnd[0], | |
3640 | rsplen); | |
3641 | host_status = DID_ERROR; | |
3642 | goto out; | |
3643 | } | |
e40a02c1 JS |
3644 | if (fcprsp->rspInfo3 != RSP_NO_FAILURE) { |
3645 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
3646 | "2757 Protocol failure detected during " | |
3647 | "processing of FCP I/O op: " | |
9cb78c16 | 3648 | "tgt x%x lun x%llx cmnd x%x rspInfo3 x%x\n", |
e40a02c1 JS |
3649 | cmnd->device->id, |
3650 | cmnd->device->lun, cmnd->cmnd[0], | |
3651 | fcprsp->rspInfo3); | |
3652 | host_status = DID_ERROR; | |
3653 | goto out; | |
3654 | } | |
6a9c52cf JS |
3655 | } |
3656 | ||
c7743956 JS |
3657 | if ((resp_info & SNS_LEN_VALID) && fcprsp->rspSnsLen) { |
3658 | uint32_t snslen = be32_to_cpu(fcprsp->rspSnsLen); | |
3659 | if (snslen > SCSI_SENSE_BUFFERSIZE) | |
3660 | snslen = SCSI_SENSE_BUFFERSIZE; | |
3661 | ||
3662 | if (resp_info & RSP_LEN_VALID) | |
3663 | rsplen = be32_to_cpu(fcprsp->rspRspLen); | |
3664 | memcpy(cmnd->sense_buffer, &fcprsp->rspInfo0 + rsplen, snslen); | |
3665 | } | |
3666 | lp = (uint32_t *)cmnd->sense_buffer; | |
3667 | ||
aa1c7ee7 JS |
3668 | /* special handling for under run conditions */ |
3669 | if (!scsi_status && (resp_info & RESID_UNDER)) { | |
3670 | /* don't log under runs if fcp set... */ | |
3671 | if (vport->cfg_log_verbose & LOG_FCP) | |
3672 | logit = LOG_FCP_ERROR; | |
3673 | /* unless operator says so */ | |
3674 | if (vport->cfg_log_verbose & LOG_FCP_UNDER) | |
3675 | logit = LOG_FCP_UNDER; | |
3676 | } | |
c7743956 | 3677 | |
e8b62011 | 3678 | lpfc_printf_vlog(vport, KERN_WARNING, logit, |
e2a0a9d6 | 3679 | "9024 FCP command x%x failed: x%x SNS x%x x%x " |
e8b62011 JS |
3680 | "Data: x%x x%x x%x x%x x%x\n", |
3681 | cmnd->cmnd[0], scsi_status, | |
3682 | be32_to_cpu(*lp), be32_to_cpu(*(lp + 3)), resp_info, | |
3683 | be32_to_cpu(fcprsp->rspResId), | |
3684 | be32_to_cpu(fcprsp->rspSnsLen), | |
3685 | be32_to_cpu(fcprsp->rspRspLen), | |
3686 | fcprsp->rspInfo3); | |
dea3101e | 3687 | |
a0b4f78f | 3688 | scsi_set_resid(cmnd, 0); |
5afab6bb | 3689 | fcpDl = be32_to_cpu(fcpcmd->fcpDl); |
dea3101e | 3690 | if (resp_info & RESID_UNDER) { |
a0b4f78f | 3691 | scsi_set_resid(cmnd, be32_to_cpu(fcprsp->rspResId)); |
dea3101e | 3692 | |
73d91e50 | 3693 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP_UNDER, |
45634a86 | 3694 | "9025 FCP Underrun, expected %d, " |
e8b62011 | 3695 | "residual %d Data: x%x x%x x%x\n", |
5afab6bb | 3696 | fcpDl, |
e8b62011 JS |
3697 | scsi_get_resid(cmnd), fcpi_parm, cmnd->cmnd[0], |
3698 | cmnd->underflow); | |
dea3101e | 3699 | |
7054a606 | 3700 | /* |
45634a86 | 3701 | * If there is an under run, check if under run reported by |
7054a606 JS |
3702 | * storage array is same as the under run reported by HBA. |
3703 | * If this is not same, there is a dropped frame. | |
3704 | */ | |
45634a86 | 3705 | if (fcpi_parm && (scsi_get_resid(cmnd) != fcpi_parm)) { |
e8b62011 JS |
3706 | lpfc_printf_vlog(vport, KERN_WARNING, |
3707 | LOG_FCP | LOG_FCP_ERROR, | |
e2a0a9d6 | 3708 | "9026 FCP Read Check Error " |
e8b62011 | 3709 | "and Underrun Data: x%x x%x x%x x%x\n", |
5afab6bb | 3710 | fcpDl, |
e8b62011 JS |
3711 | scsi_get_resid(cmnd), fcpi_parm, |
3712 | cmnd->cmnd[0]); | |
a0b4f78f | 3713 | scsi_set_resid(cmnd, scsi_bufflen(cmnd)); |
7054a606 JS |
3714 | host_status = DID_ERROR; |
3715 | } | |
dea3101e JB |
3716 | /* |
3717 | * The cmnd->underflow is the minimum number of bytes that must | |
25985edc | 3718 | * be transferred for this command. Provided a sense condition |
dea3101e JB |
3719 | * is not present, make sure the actual amount transferred is at |
3720 | * least the underflow value or fail. | |
3721 | */ | |
3722 | if (!(resp_info & SNS_LEN_VALID) && | |
3723 | (scsi_status == SAM_STAT_GOOD) && | |
a0b4f78f FT |
3724 | (scsi_bufflen(cmnd) - scsi_get_resid(cmnd) |
3725 | < cmnd->underflow)) { | |
e8b62011 | 3726 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, |
e2a0a9d6 | 3727 | "9027 FCP command x%x residual " |
e8b62011 JS |
3728 | "underrun converted to error " |
3729 | "Data: x%x x%x x%x\n", | |
66dbfbe6 | 3730 | cmnd->cmnd[0], scsi_bufflen(cmnd), |
e8b62011 | 3731 | scsi_get_resid(cmnd), cmnd->underflow); |
dea3101e JB |
3732 | host_status = DID_ERROR; |
3733 | } | |
3734 | } else if (resp_info & RESID_OVER) { | |
e8b62011 | 3735 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
e2a0a9d6 | 3736 | "9028 FCP command x%x residual overrun error. " |
e4e74273 | 3737 | "Data: x%x x%x\n", cmnd->cmnd[0], |
e8b62011 | 3738 | scsi_bufflen(cmnd), scsi_get_resid(cmnd)); |
dea3101e JB |
3739 | host_status = DID_ERROR; |
3740 | ||
3741 | /* | |
3742 | * Check SLI validation that all the transfer was actually done | |
26373d23 | 3743 | * (fcpi_parm should be zero). Apply check only to reads. |
dea3101e | 3744 | */ |
5afab6bb | 3745 | } else if (fcpi_parm) { |
e8b62011 | 3746 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP | LOG_FCP_ERROR, |
5afab6bb | 3747 | "9029 FCP %s Check Error xri x%x Data: " |
eee8877e | 3748 | "x%x x%x x%x x%x x%x\n", |
5afab6bb JS |
3749 | ((cmnd->sc_data_direction == DMA_FROM_DEVICE) ? |
3750 | "Read" : "Write"), | |
3751 | ((phba->sli_rev == LPFC_SLI_REV4) ? | |
3752 | lpfc_cmd->cur_iocbq.sli4_xritag : | |
3753 | rsp_iocb->iocb.ulpContext), | |
3754 | fcpDl, be32_to_cpu(fcprsp->rspResId), | |
eee8877e | 3755 | fcpi_parm, cmnd->cmnd[0], scsi_status); |
5afab6bb JS |
3756 | |
3757 | /* There is some issue with the LPe12000 that causes it | |
3758 | * to miscalculate the fcpi_parm and falsely trip this | |
3759 | * recovery logic. Detect this case and don't error when true. | |
3760 | */ | |
3761 | if (fcpi_parm > fcpDl) | |
3762 | goto out; | |
3763 | ||
eee8877e JS |
3764 | switch (scsi_status) { |
3765 | case SAM_STAT_GOOD: | |
3766 | case SAM_STAT_CHECK_CONDITION: | |
3767 | /* Fabric dropped a data frame. Fail any successful | |
3768 | * command in which we detected dropped frames. | |
3769 | * A status of good or some check conditions could | |
3770 | * be considered a successful command. | |
3771 | */ | |
3772 | host_status = DID_ERROR; | |
3773 | break; | |
3774 | } | |
a0b4f78f | 3775 | scsi_set_resid(cmnd, scsi_bufflen(cmnd)); |
dea3101e JB |
3776 | } |
3777 | ||
3778 | out: | |
c6668cae | 3779 | cmnd->result = host_status << 16 | scsi_status; |
ea2151b4 | 3780 | lpfc_send_scsi_error_event(vport->phba, vport, lpfc_cmd, rsp_iocb); |
dea3101e JB |
3781 | } |
3782 | ||
9bad7671 | 3783 | /** |
3621a710 | 3784 | * lpfc_scsi_cmd_iocb_cmpl - Scsi cmnd IOCB completion routine |
9bad7671 JS |
3785 | * @phba: The Hba for which this call is being executed. |
3786 | * @pIocbIn: The command IOCBQ for the scsi cmnd. | |
3772a991 | 3787 | * @pIocbOut: The response IOCBQ for the scsi cmnd. |
9bad7671 JS |
3788 | * |
3789 | * This routine assigns scsi command result by looking into response IOCB | |
3790 | * status field appropriately. This routine handles QUEUE FULL condition as | |
3791 | * well by ramping down device queue depth. | |
3792 | **/ | |
dea3101e JB |
3793 | static void |
3794 | lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn, | |
3795 | struct lpfc_iocbq *pIocbOut) | |
3796 | { | |
c490850a JS |
3797 | struct lpfc_io_buf *lpfc_cmd = |
3798 | (struct lpfc_io_buf *) pIocbIn->context1; | |
2e0fef85 | 3799 | struct lpfc_vport *vport = pIocbIn->vport; |
dea3101e JB |
3800 | struct lpfc_rport_data *rdata = lpfc_cmd->rdata; |
3801 | struct lpfc_nodelist *pnode = rdata->pnode; | |
75baf696 | 3802 | struct scsi_cmnd *cmd; |
fa61a54e | 3803 | unsigned long flags; |
ea2151b4 | 3804 | struct lpfc_fast_path_event *fast_path_evt; |
75baf696 | 3805 | struct Scsi_Host *shost; |
4c47efc1 | 3806 | int idx; |
73d91e50 | 3807 | uint32_t logit = LOG_FCP; |
6a828b0f JS |
3808 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
3809 | int cpu; | |
3810 | #endif | |
dea3101e | 3811 | |
c2017260 JS |
3812 | /* Guard against abort handler being called at same time */ |
3813 | spin_lock(&lpfc_cmd->buf_lock); | |
3814 | ||
75baf696 | 3815 | /* Sanity check on return of outstanding command */ |
75baf696 | 3816 | cmd = lpfc_cmd->pCmd; |
5df05a9d | 3817 | if (!cmd || !phba) { |
c2017260 JS |
3818 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
3819 | "2621 IO completion: Not an active IO\n"); | |
3820 | spin_unlock(&lpfc_cmd->buf_lock); | |
c90261dc | 3821 | return; |
c2017260 | 3822 | } |
4c47efc1 JS |
3823 | |
3824 | idx = lpfc_cmd->cur_iocbq.hba_wqidx; | |
3825 | if (phba->sli4_hba.hdwq) | |
3826 | phba->sli4_hba.hdwq[idx].scsi_cstat.io_cmpls++; | |
3827 | ||
6a828b0f | 3828 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
8f82561d | 3829 | if (unlikely(phba->cpucheck_on & LPFC_CHECK_SCSI_IO)) { |
d6d189ce | 3830 | cpu = raw_smp_processor_id(); |
ff6bf897 | 3831 | if (cpu < LPFC_CHECK_CPU_CNT && phba->sli4_hba.hdwq) |
6a828b0f JS |
3832 | phba->sli4_hba.hdwq[idx].cpucheck_cmpl_io[cpu]++; |
3833 | } | |
3834 | #endif | |
75baf696 JS |
3835 | shost = cmd->device->host; |
3836 | ||
e3d2b802 | 3837 | lpfc_cmd->result = (pIocbOut->iocb.un.ulpWord[4] & IOERR_PARAM_MASK); |
dea3101e | 3838 | lpfc_cmd->status = pIocbOut->iocb.ulpStatus; |
341af102 | 3839 | /* pick up SLI4 exhange busy status from HBA */ |
a3c51276 JS |
3840 | if (pIocbOut->iocb_flag & LPFC_EXCHANGE_BUSY) |
3841 | lpfc_cmd->flags |= LPFC_SBUF_XBUSY; | |
3842 | else | |
3843 | lpfc_cmd->flags &= ~LPFC_SBUF_XBUSY; | |
341af102 | 3844 | |
9a6b09c0 JS |
3845 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
3846 | if (lpfc_cmd->prot_data_type) { | |
3847 | struct scsi_dif_tuple *src = NULL; | |
3848 | ||
3849 | src = (struct scsi_dif_tuple *)lpfc_cmd->prot_data_segment; | |
3850 | /* | |
3851 | * Used to restore any changes to protection | |
3852 | * data for error injection. | |
3853 | */ | |
3854 | switch (lpfc_cmd->prot_data_type) { | |
3855 | case LPFC_INJERR_REFTAG: | |
3856 | src->ref_tag = | |
3857 | lpfc_cmd->prot_data; | |
3858 | break; | |
3859 | case LPFC_INJERR_APPTAG: | |
3860 | src->app_tag = | |
3861 | (uint16_t)lpfc_cmd->prot_data; | |
3862 | break; | |
3863 | case LPFC_INJERR_GUARD: | |
3864 | src->guard_tag = | |
3865 | (uint16_t)lpfc_cmd->prot_data; | |
3866 | break; | |
3867 | default: | |
3868 | break; | |
3869 | } | |
3870 | ||
3871 | lpfc_cmd->prot_data = 0; | |
3872 | lpfc_cmd->prot_data_type = 0; | |
3873 | lpfc_cmd->prot_data_segment = NULL; | |
3874 | } | |
3875 | #endif | |
2ea259ee | 3876 | |
8f82561d | 3877 | if (unlikely(lpfc_cmd->status)) { |
dea3101e JB |
3878 | if (lpfc_cmd->status == IOSTAT_LOCAL_REJECT && |
3879 | (lpfc_cmd->result & IOERR_DRVR_MASK)) | |
3880 | lpfc_cmd->status = IOSTAT_DRIVER_REJECT; | |
3881 | else if (lpfc_cmd->status >= IOSTAT_CNT) | |
3882 | lpfc_cmd->status = IOSTAT_DEFAULT; | |
aa1c7ee7 JS |
3883 | if (lpfc_cmd->status == IOSTAT_FCP_RSP_ERROR && |
3884 | !lpfc_cmd->fcp_rsp->rspStatus3 && | |
3885 | (lpfc_cmd->fcp_rsp->rspStatus2 & RESID_UNDER) && | |
3886 | !(vport->cfg_log_verbose & LOG_FCP_UNDER)) | |
73d91e50 JS |
3887 | logit = 0; |
3888 | else | |
3889 | logit = LOG_FCP | LOG_FCP_UNDER; | |
3890 | lpfc_printf_vlog(vport, KERN_WARNING, logit, | |
9cb78c16 | 3891 | "9030 FCP cmd x%x failed <%d/%lld> " |
5a0d80fc JS |
3892 | "status: x%x result: x%x " |
3893 | "sid: x%x did: x%x oxid: x%x " | |
3894 | "Data: x%x x%x\n", | |
73d91e50 JS |
3895 | cmd->cmnd[0], |
3896 | cmd->device ? cmd->device->id : 0xffff, | |
3897 | cmd->device ? cmd->device->lun : 0xffff, | |
3898 | lpfc_cmd->status, lpfc_cmd->result, | |
3bf41ba9 JS |
3899 | vport->fc_myDID, |
3900 | (pnode) ? pnode->nlp_DID : 0, | |
5a0d80fc JS |
3901 | phba->sli_rev == LPFC_SLI_REV4 ? |
3902 | lpfc_cmd->cur_iocbq.sli4_xritag : 0xffff, | |
73d91e50 JS |
3903 | pIocbOut->iocb.ulpContext, |
3904 | lpfc_cmd->cur_iocbq.iocb.ulpIoTag); | |
dea3101e JB |
3905 | |
3906 | switch (lpfc_cmd->status) { | |
3907 | case IOSTAT_FCP_RSP_ERROR: | |
3908 | /* Call FCP RSP handler to determine result */ | |
2e0fef85 | 3909 | lpfc_handle_fcp_err(vport, lpfc_cmd, pIocbOut); |
dea3101e JB |
3910 | break; |
3911 | case IOSTAT_NPORT_BSY: | |
3912 | case IOSTAT_FABRIC_BSY: | |
c6668cae | 3913 | cmd->result = DID_TRANSPORT_DISRUPTED << 16; |
ea2151b4 JS |
3914 | fast_path_evt = lpfc_alloc_fast_evt(phba); |
3915 | if (!fast_path_evt) | |
3916 | break; | |
3917 | fast_path_evt->un.fabric_evt.event_type = | |
3918 | FC_REG_FABRIC_EVENT; | |
3919 | fast_path_evt->un.fabric_evt.subcategory = | |
3920 | (lpfc_cmd->status == IOSTAT_NPORT_BSY) ? | |
3921 | LPFC_EVENT_PORT_BUSY : LPFC_EVENT_FABRIC_BUSY; | |
3922 | if (pnode && NLP_CHK_NODE_ACT(pnode)) { | |
3923 | memcpy(&fast_path_evt->un.fabric_evt.wwpn, | |
3924 | &pnode->nlp_portname, | |
3925 | sizeof(struct lpfc_name)); | |
3926 | memcpy(&fast_path_evt->un.fabric_evt.wwnn, | |
3927 | &pnode->nlp_nodename, | |
3928 | sizeof(struct lpfc_name)); | |
3929 | } | |
3930 | fast_path_evt->vport = vport; | |
3931 | fast_path_evt->work_evt.evt = | |
3932 | LPFC_EVT_FASTPATH_MGMT_EVT; | |
3933 | spin_lock_irqsave(&phba->hbalock, flags); | |
3934 | list_add_tail(&fast_path_evt->work_evt.evt_listp, | |
3935 | &phba->work_list); | |
3936 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
3937 | lpfc_worker_wake_up(phba); | |
dea3101e | 3938 | break; |
92d7f7b0 | 3939 | case IOSTAT_LOCAL_REJECT: |
1151e3ec | 3940 | case IOSTAT_REMOTE_STOP: |
ab56dc2e JS |
3941 | if (lpfc_cmd->result == IOERR_ELXSEC_KEY_UNWRAP_ERROR || |
3942 | lpfc_cmd->result == | |
3943 | IOERR_ELXSEC_KEY_UNWRAP_COMPARE_ERROR || | |
3944 | lpfc_cmd->result == IOERR_ELXSEC_CRYPTO_ERROR || | |
3945 | lpfc_cmd->result == | |
3946 | IOERR_ELXSEC_CRYPTO_COMPARE_ERROR) { | |
c6668cae | 3947 | cmd->result = DID_NO_CONNECT << 16; |
ab56dc2e JS |
3948 | break; |
3949 | } | |
d7c255b2 | 3950 | if (lpfc_cmd->result == IOERR_INVALID_RPI || |
92d7f7b0 | 3951 | lpfc_cmd->result == IOERR_NO_RESOURCES || |
b92938b4 JS |
3952 | lpfc_cmd->result == IOERR_ABORT_REQUESTED || |
3953 | lpfc_cmd->result == IOERR_SLER_CMD_RCV_FAILURE) { | |
c6668cae | 3954 | cmd->result = DID_REQUEUE << 16; |
58da1ffb | 3955 | break; |
e2a0a9d6 | 3956 | } |
e2a0a9d6 JS |
3957 | if ((lpfc_cmd->result == IOERR_RX_DMA_FAILED || |
3958 | lpfc_cmd->result == IOERR_TX_DMA_FAILED) && | |
3959 | pIocbOut->iocb.unsli3.sli3_bg.bgstat) { | |
3960 | if (scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) { | |
3961 | /* | |
3962 | * This is a response for a BG enabled | |
3963 | * cmd. Parse BG error | |
3964 | */ | |
3965 | lpfc_parse_bg_err(phba, lpfc_cmd, | |
3966 | pIocbOut); | |
3967 | break; | |
3968 | } else { | |
3969 | lpfc_printf_vlog(vport, KERN_WARNING, | |
3970 | LOG_BG, | |
3971 | "9031 non-zero BGSTAT " | |
6a9c52cf | 3972 | "on unprotected cmd\n"); |
e2a0a9d6 JS |
3973 | } |
3974 | } | |
1151e3ec JS |
3975 | if ((lpfc_cmd->status == IOSTAT_REMOTE_STOP) |
3976 | && (phba->sli_rev == LPFC_SLI_REV4) | |
3977 | && (pnode && NLP_CHK_NODE_ACT(pnode))) { | |
3978 | /* This IO was aborted by the target, we don't | |
3979 | * know the rxid and because we did not send the | |
3980 | * ABTS we cannot generate and RRQ. | |
3981 | */ | |
3982 | lpfc_set_rrq_active(phba, pnode, | |
ee0f4fe1 JS |
3983 | lpfc_cmd->cur_iocbq.sli4_lxritag, |
3984 | 0, 0); | |
1151e3ec | 3985 | } |
cd05c155 | 3986 | /* fall through */ |
dea3101e | 3987 | default: |
c6668cae | 3988 | cmd->result = DID_ERROR << 16; |
dea3101e JB |
3989 | break; |
3990 | } | |
3991 | ||
58da1ffb | 3992 | if (!pnode || !NLP_CHK_NODE_ACT(pnode) |
19a7b4ae | 3993 | || (pnode->nlp_state != NLP_STE_MAPPED_NODE)) |
c6668cae JT |
3994 | cmd->result = DID_TRANSPORT_DISRUPTED << 16 | |
3995 | SAM_STAT_BUSY; | |
ab56dc2e | 3996 | } else |
c6668cae | 3997 | cmd->result = DID_OK << 16; |
dea3101e JB |
3998 | |
3999 | if (cmd->result || lpfc_cmd->fcp_rsp->rspSnsLen) { | |
4000 | uint32_t *lp = (uint32_t *)cmd->sense_buffer; | |
4001 | ||
e8b62011 | 4002 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, |
32350664 | 4003 | "0710 Iodone <%d/%llu> cmd x%px, error " |
e8b62011 JS |
4004 | "x%x SNS x%x x%x Data: x%x x%x\n", |
4005 | cmd->device->id, cmd->device->lun, cmd, | |
4006 | cmd->result, *lp, *(lp + 3), cmd->retries, | |
4007 | scsi_get_resid(cmd)); | |
dea3101e JB |
4008 | } |
4009 | ||
e5c93b45 | 4010 | lpfc_update_stats(vport, lpfc_cmd); |
977b5a0a JS |
4011 | if (vport->cfg_max_scsicmpl_time && |
4012 | time_after(jiffies, lpfc_cmd->start_time + | |
4013 | msecs_to_jiffies(vport->cfg_max_scsicmpl_time))) { | |
a257bf90 | 4014 | spin_lock_irqsave(shost->host_lock, flags); |
109f6ed0 JS |
4015 | if (pnode && NLP_CHK_NODE_ACT(pnode)) { |
4016 | if (pnode->cmd_qdepth > | |
4017 | atomic_read(&pnode->cmd_pending) && | |
4018 | (atomic_read(&pnode->cmd_pending) > | |
4019 | LPFC_MIN_TGT_QDEPTH) && | |
4020 | ((cmd->cmnd[0] == READ_10) || | |
4021 | (cmd->cmnd[0] == WRITE_10))) | |
4022 | pnode->cmd_qdepth = | |
4023 | atomic_read(&pnode->cmd_pending); | |
4024 | ||
4025 | pnode->last_change_time = jiffies; | |
4026 | } | |
a257bf90 | 4027 | spin_unlock_irqrestore(shost->host_lock, flags); |
977b5a0a | 4028 | } |
1dcb58e5 | 4029 | lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd); |
a257bf90 | 4030 | |
c2017260 JS |
4031 | lpfc_cmd->pCmd = NULL; |
4032 | spin_unlock(&lpfc_cmd->buf_lock); | |
92e3af66 | 4033 | |
89533e9b JS |
4034 | /* The sdev is not guaranteed to be valid post scsi_done upcall. */ |
4035 | cmd->scsi_done(cmd); | |
4036 | ||
fa61a54e | 4037 | /* |
c2017260 | 4038 | * If there is an abort thread waiting for command completion |
fa61a54e JS |
4039 | * wake up the thread. |
4040 | */ | |
c2017260 | 4041 | spin_lock(&lpfc_cmd->buf_lock); |
4eb01535 | 4042 | lpfc_cmd->cur_iocbq.iocb_flag &= ~LPFC_DRIVER_ABORTED; |
b9e5a2d9 | 4043 | if (lpfc_cmd->waitq) |
4eb01535 | 4044 | wake_up(lpfc_cmd->waitq); |
c2017260 | 4045 | spin_unlock(&lpfc_cmd->buf_lock); |
fa61a54e | 4046 | |
0bd4ca25 | 4047 | lpfc_release_scsi_buf(phba, lpfc_cmd); |
dea3101e JB |
4048 | } |
4049 | ||
8b2564ec AK |
4050 | /** |
4051 | * lpfc_fcpcmd_to_iocb - copy the fcp_cmd data into the IOCB | |
4052 | * @data: A pointer to the immediate command data portion of the IOCB. | |
4053 | * @fcp_cmnd: The FCP Command that is provided by the SCSI layer. | |
4054 | * | |
4055 | * The routine copies the entire FCP command from @fcp_cmnd to @data while | |
4056 | * byte swapping the data to big endian format for transmission on the wire. | |
4057 | **/ | |
4058 | static void | |
4059 | lpfc_fcpcmd_to_iocb(uint8_t *data, struct fcp_cmnd *fcp_cmnd) | |
4060 | { | |
4061 | int i, j; | |
4062 | for (i = 0, j = 0; i < sizeof(struct fcp_cmnd); | |
4063 | i += sizeof(uint32_t), j++) { | |
4064 | ((uint32_t *)data)[j] = cpu_to_be32(((uint32_t *)fcp_cmnd)[j]); | |
4065 | } | |
4066 | } | |
4067 | ||
9bad7671 | 4068 | /** |
f1126688 | 4069 | * lpfc_scsi_prep_cmnd - Wrapper func for convert scsi cmnd to FCP info unit |
9bad7671 JS |
4070 | * @vport: The virtual port for which this call is being executed. |
4071 | * @lpfc_cmd: The scsi command which needs to send. | |
4072 | * @pnode: Pointer to lpfc_nodelist. | |
4073 | * | |
4074 | * This routine initializes fcp_cmnd and iocb data structure from scsi command | |
3772a991 | 4075 | * to transfer for device with SLI3 interface spec. |
9bad7671 | 4076 | **/ |
dea3101e | 4077 | static void |
c490850a | 4078 | lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_io_buf *lpfc_cmd, |
2e0fef85 | 4079 | struct lpfc_nodelist *pnode) |
dea3101e | 4080 | { |
2e0fef85 | 4081 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
4082 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; |
4083 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
4084 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; | |
4085 | struct lpfc_iocbq *piocbq = &(lpfc_cmd->cur_iocbq); | |
4c47efc1 | 4086 | struct lpfc_sli4_hdw_queue *hdwq = NULL; |
dea3101e | 4087 | int datadir = scsi_cmnd->sc_data_direction; |
4c47efc1 | 4088 | int idx; |
027140ea JS |
4089 | uint8_t *ptr; |
4090 | bool sli4; | |
98bbf5f7 | 4091 | uint32_t fcpdl; |
dea3101e | 4092 | |
58da1ffb JS |
4093 | if (!pnode || !NLP_CHK_NODE_ACT(pnode)) |
4094 | return; | |
4095 | ||
dea3101e | 4096 | lpfc_cmd->fcp_rsp->rspSnsLen = 0; |
69859dc4 JSEC |
4097 | /* clear task management bits */ |
4098 | lpfc_cmd->fcp_cmnd->fcpCntl2 = 0; | |
dea3101e | 4099 | |
91886523 JSEC |
4100 | int_to_scsilun(lpfc_cmd->pCmd->device->lun, |
4101 | &lpfc_cmd->fcp_cmnd->fcp_lun); | |
dea3101e | 4102 | |
027140ea JS |
4103 | ptr = &fcp_cmnd->fcpCdb[0]; |
4104 | memcpy(ptr, scsi_cmnd->cmnd, scsi_cmnd->cmd_len); | |
4105 | if (scsi_cmnd->cmd_len < LPFC_FCP_CDB_LEN) { | |
4106 | ptr += scsi_cmnd->cmd_len; | |
4107 | memset(ptr, 0, (LPFC_FCP_CDB_LEN - scsi_cmnd->cmd_len)); | |
4108 | } | |
4109 | ||
50668633 | 4110 | fcp_cmnd->fcpCntl1 = SIMPLE_Q; |
dea3101e | 4111 | |
027140ea | 4112 | sli4 = (phba->sli_rev == LPFC_SLI_REV4); |
6acb3481 | 4113 | piocbq->iocb.un.fcpi.fcpi_XRdy = 0; |
1fbf9742 | 4114 | idx = lpfc_cmd->hdwq_no; |
4c47efc1 JS |
4115 | if (phba->sli4_hba.hdwq) |
4116 | hdwq = &phba->sli4_hba.hdwq[idx]; | |
027140ea | 4117 | |
dea3101e JB |
4118 | /* |
4119 | * There are three possibilities here - use scatter-gather segment, use | |
4120 | * the single mapping, or neither. Start the lpfc command prep by | |
4121 | * bumping the bpl beyond the fcp_cmnd and fcp_rsp regions to the first | |
4122 | * data bde entry. | |
4123 | */ | |
a0b4f78f | 4124 | if (scsi_sg_count(scsi_cmnd)) { |
dea3101e JB |
4125 | if (datadir == DMA_TO_DEVICE) { |
4126 | iocb_cmd->ulpCommand = CMD_FCP_IWRITE64_CR; | |
182ba753 | 4127 | iocb_cmd->ulpPU = PARM_READ_CHECK; |
3cb01c57 JS |
4128 | if (vport->cfg_first_burst_size && |
4129 | (pnode->nlp_flag & NLP_FIRSTBURST)) { | |
98bbf5f7 JS |
4130 | fcpdl = scsi_bufflen(scsi_cmnd); |
4131 | if (fcpdl < vport->cfg_first_burst_size) | |
4132 | piocbq->iocb.un.fcpi.fcpi_XRdy = fcpdl; | |
4133 | else | |
4134 | piocbq->iocb.un.fcpi.fcpi_XRdy = | |
4135 | vport->cfg_first_burst_size; | |
3cb01c57 | 4136 | } |
dea3101e | 4137 | fcp_cmnd->fcpCntl3 = WRITE_DATA; |
4c47efc1 JS |
4138 | if (hdwq) |
4139 | hdwq->scsi_cstat.output_requests++; | |
dea3101e JB |
4140 | } else { |
4141 | iocb_cmd->ulpCommand = CMD_FCP_IREAD64_CR; | |
4142 | iocb_cmd->ulpPU = PARM_READ_CHECK; | |
dea3101e | 4143 | fcp_cmnd->fcpCntl3 = READ_DATA; |
4c47efc1 JS |
4144 | if (hdwq) |
4145 | hdwq->scsi_cstat.input_requests++; | |
dea3101e JB |
4146 | } |
4147 | } else { | |
4148 | iocb_cmd->ulpCommand = CMD_FCP_ICMND64_CR; | |
4149 | iocb_cmd->un.fcpi.fcpi_parm = 0; | |
4150 | iocb_cmd->ulpPU = 0; | |
4151 | fcp_cmnd->fcpCntl3 = 0; | |
4c47efc1 JS |
4152 | if (hdwq) |
4153 | hdwq->scsi_cstat.control_requests++; | |
dea3101e | 4154 | } |
8b2564ec AK |
4155 | if (phba->sli_rev == 3 && |
4156 | !(phba->sli3_options & LPFC_SLI3_BG_ENABLED)) | |
4157 | lpfc_fcpcmd_to_iocb(iocb_cmd->unsli3.fcp_ext.icd, fcp_cmnd); | |
dea3101e JB |
4158 | /* |
4159 | * Finish initializing those IOCB fields that are independent | |
4160 | * of the scsi_cmnd request_buffer | |
4161 | */ | |
4162 | piocbq->iocb.ulpContext = pnode->nlp_rpi; | |
027140ea | 4163 | if (sli4) |
6d368e53 JS |
4164 | piocbq->iocb.ulpContext = |
4165 | phba->sli4_hba.rpi_ids[pnode->nlp_rpi]; | |
dea3101e JB |
4166 | if (pnode->nlp_fcp_info & NLP_FCP_2_DEVICE) |
4167 | piocbq->iocb.ulpFCP2Rcvy = 1; | |
09372820 JS |
4168 | else |
4169 | piocbq->iocb.ulpFCP2Rcvy = 0; | |
dea3101e JB |
4170 | |
4171 | piocbq->iocb.ulpClass = (pnode->nlp_fcp_info & 0x0f); | |
4172 | piocbq->context1 = lpfc_cmd; | |
4173 | piocbq->iocb_cmpl = lpfc_scsi_cmd_iocb_cmpl; | |
4174 | piocbq->iocb.ulpTimeout = lpfc_cmd->timeout; | |
2e0fef85 | 4175 | piocbq->vport = vport; |
dea3101e JB |
4176 | } |
4177 | ||
da0436e9 | 4178 | /** |
6d368e53 | 4179 | * lpfc_scsi_prep_task_mgmt_cmd - Convert SLI3 scsi TM cmd to FCP info unit |
9bad7671 | 4180 | * @vport: The virtual port for which this call is being executed. |
c490850a | 4181 | * @lpfc_cmd: Pointer to lpfc_io_buf data structure. |
9bad7671 JS |
4182 | * @lun: Logical unit number. |
4183 | * @task_mgmt_cmd: SCSI task management command. | |
4184 | * | |
3772a991 JS |
4185 | * This routine creates FCP information unit corresponding to @task_mgmt_cmd |
4186 | * for device with SLI-3 interface spec. | |
9bad7671 JS |
4187 | * |
4188 | * Return codes: | |
4189 | * 0 - Error | |
4190 | * 1 - Success | |
4191 | **/ | |
dea3101e | 4192 | static int |
f1126688 | 4193 | lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_vport *vport, |
c490850a | 4194 | struct lpfc_io_buf *lpfc_cmd, |
9cb78c16 | 4195 | uint64_t lun, |
dea3101e JB |
4196 | uint8_t task_mgmt_cmd) |
4197 | { | |
dea3101e JB |
4198 | struct lpfc_iocbq *piocbq; |
4199 | IOCB_t *piocb; | |
4200 | struct fcp_cmnd *fcp_cmnd; | |
0b18ac42 | 4201 | struct lpfc_rport_data *rdata = lpfc_cmd->rdata; |
dea3101e JB |
4202 | struct lpfc_nodelist *ndlp = rdata->pnode; |
4203 | ||
58da1ffb JS |
4204 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || |
4205 | ndlp->nlp_state != NLP_STE_MAPPED_NODE) | |
dea3101e | 4206 | return 0; |
dea3101e | 4207 | |
dea3101e | 4208 | piocbq = &(lpfc_cmd->cur_iocbq); |
2e0fef85 JS |
4209 | piocbq->vport = vport; |
4210 | ||
dea3101e JB |
4211 | piocb = &piocbq->iocb; |
4212 | ||
4213 | fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
34b02dcd JS |
4214 | /* Clear out any old data in the FCP command area */ |
4215 | memset(fcp_cmnd, 0, sizeof(struct fcp_cmnd)); | |
4216 | int_to_scsilun(lun, &fcp_cmnd->fcp_lun); | |
dea3101e | 4217 | fcp_cmnd->fcpCntl2 = task_mgmt_cmd; |
e2a0a9d6 JS |
4218 | if (vport->phba->sli_rev == 3 && |
4219 | !(vport->phba->sli3_options & LPFC_SLI3_BG_ENABLED)) | |
34b02dcd | 4220 | lpfc_fcpcmd_to_iocb(piocb->unsli3.fcp_ext.icd, fcp_cmnd); |
dea3101e | 4221 | piocb->ulpCommand = CMD_FCP_ICMND64_CR; |
dea3101e | 4222 | piocb->ulpContext = ndlp->nlp_rpi; |
6d368e53 JS |
4223 | if (vport->phba->sli_rev == LPFC_SLI_REV4) { |
4224 | piocb->ulpContext = | |
4225 | vport->phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; | |
4226 | } | |
53151bbb | 4227 | piocb->ulpFCP2Rcvy = (ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) ? 1 : 0; |
dea3101e | 4228 | piocb->ulpClass = (ndlp->nlp_fcp_info & 0x0f); |
f9226c20 JS |
4229 | piocb->ulpPU = 0; |
4230 | piocb->un.fcpi.fcpi_parm = 0; | |
dea3101e JB |
4231 | |
4232 | /* ulpTimeout is only one byte */ | |
4233 | if (lpfc_cmd->timeout > 0xff) { | |
4234 | /* | |
4235 | * Do not timeout the command at the firmware level. | |
4236 | * The driver will provide the timeout mechanism. | |
4237 | */ | |
4238 | piocb->ulpTimeout = 0; | |
f1126688 | 4239 | } else |
dea3101e | 4240 | piocb->ulpTimeout = lpfc_cmd->timeout; |
da0436e9 | 4241 | |
f1126688 JS |
4242 | if (vport->phba->sli_rev == LPFC_SLI_REV4) |
4243 | lpfc_sli4_set_rsp_sgl_last(vport->phba, lpfc_cmd); | |
3772a991 | 4244 | |
f1126688 | 4245 | return 1; |
3772a991 JS |
4246 | } |
4247 | ||
4248 | /** | |
25985edc | 4249 | * lpfc_scsi_api_table_setup - Set up scsi api function jump table |
3772a991 JS |
4250 | * @phba: The hba struct for which this call is being executed. |
4251 | * @dev_grp: The HBA PCI-Device group number. | |
4252 | * | |
4253 | * This routine sets up the SCSI interface API function jump table in @phba | |
4254 | * struct. | |
4255 | * Returns: 0 - success, -ENODEV - failure. | |
4256 | **/ | |
4257 | int | |
4258 | lpfc_scsi_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) | |
4259 | { | |
4260 | ||
f1126688 JS |
4261 | phba->lpfc_scsi_unprep_dma_buf = lpfc_scsi_unprep_dma_buf; |
4262 | phba->lpfc_scsi_prep_cmnd = lpfc_scsi_prep_cmnd; | |
f1126688 | 4263 | |
3772a991 JS |
4264 | switch (dev_grp) { |
4265 | case LPFC_PCI_DEV_LP: | |
3772a991 | 4266 | phba->lpfc_scsi_prep_dma_buf = lpfc_scsi_prep_dma_buf_s3; |
acd6859b | 4267 | phba->lpfc_bg_scsi_prep_dma_buf = lpfc_bg_scsi_prep_dma_buf_s3; |
3772a991 | 4268 | phba->lpfc_release_scsi_buf = lpfc_release_scsi_buf_s3; |
19ca7609 | 4269 | phba->lpfc_get_scsi_buf = lpfc_get_scsi_buf_s3; |
3772a991 | 4270 | break; |
da0436e9 | 4271 | case LPFC_PCI_DEV_OC: |
da0436e9 | 4272 | phba->lpfc_scsi_prep_dma_buf = lpfc_scsi_prep_dma_buf_s4; |
acd6859b | 4273 | phba->lpfc_bg_scsi_prep_dma_buf = lpfc_bg_scsi_prep_dma_buf_s4; |
da0436e9 | 4274 | phba->lpfc_release_scsi_buf = lpfc_release_scsi_buf_s4; |
19ca7609 | 4275 | phba->lpfc_get_scsi_buf = lpfc_get_scsi_buf_s4; |
da0436e9 | 4276 | break; |
3772a991 JS |
4277 | default: |
4278 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
4279 | "1418 Invalid HBA PCI-device group: 0x%x\n", | |
4280 | dev_grp); | |
4281 | return -ENODEV; | |
4282 | break; | |
4283 | } | |
3772a991 | 4284 | phba->lpfc_rampdown_queue_depth = lpfc_rampdown_queue_depth; |
84d1b006 | 4285 | phba->lpfc_scsi_cmd_iocb_cmpl = lpfc_scsi_cmd_iocb_cmpl; |
3772a991 JS |
4286 | return 0; |
4287 | } | |
4288 | ||
9bad7671 | 4289 | /** |
3621a710 | 4290 | * lpfc_taskmgmt_def_cmpl - IOCB completion routine for task management command |
9bad7671 JS |
4291 | * @phba: The Hba for which this call is being executed. |
4292 | * @cmdiocbq: Pointer to lpfc_iocbq data structure. | |
4293 | * @rspiocbq: Pointer to lpfc_iocbq data structure. | |
4294 | * | |
4295 | * This routine is IOCB completion routine for device reset and target reset | |
4296 | * routine. This routine release scsi buffer associated with lpfc_cmd. | |
4297 | **/ | |
7054a606 JS |
4298 | static void |
4299 | lpfc_tskmgmt_def_cmpl(struct lpfc_hba *phba, | |
4300 | struct lpfc_iocbq *cmdiocbq, | |
4301 | struct lpfc_iocbq *rspiocbq) | |
4302 | { | |
c490850a JS |
4303 | struct lpfc_io_buf *lpfc_cmd = |
4304 | (struct lpfc_io_buf *) cmdiocbq->context1; | |
7054a606 JS |
4305 | if (lpfc_cmd) |
4306 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
4307 | return; | |
4308 | } | |
4309 | ||
5021267a JS |
4310 | /** |
4311 | * lpfc_check_pci_resettable - Walks list of devices on pci_dev's bus to check | |
4312 | * if issuing a pci_bus_reset is possibly unsafe | |
4313 | * @phba: lpfc_hba pointer. | |
4314 | * | |
4315 | * Description: | |
4316 | * Walks the bus_list to ensure only PCI devices with Emulex | |
4317 | * vendor id, device ids that support hot reset, and only one occurrence | |
4318 | * of function 0. | |
4319 | * | |
4320 | * Returns: | |
4321 | * -EBADSLT, detected invalid device | |
4322 | * 0, successful | |
4323 | */ | |
4324 | int | |
4325 | lpfc_check_pci_resettable(const struct lpfc_hba *phba) | |
4326 | { | |
4327 | const struct pci_dev *pdev = phba->pcidev; | |
4328 | struct pci_dev *ptr = NULL; | |
4329 | u8 counter = 0; | |
4330 | ||
4331 | /* Walk the list of devices on the pci_dev's bus */ | |
4332 | list_for_each_entry(ptr, &pdev->bus->devices, bus_list) { | |
4333 | /* Check for Emulex Vendor ID */ | |
4334 | if (ptr->vendor != PCI_VENDOR_ID_EMULEX) { | |
4335 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
4336 | "8346 Non-Emulex vendor found: " | |
4337 | "0x%04x\n", ptr->vendor); | |
4338 | return -EBADSLT; | |
4339 | } | |
4340 | ||
4341 | /* Check for valid Emulex Device ID */ | |
4342 | switch (ptr->device) { | |
4343 | case PCI_DEVICE_ID_LANCER_FC: | |
4344 | case PCI_DEVICE_ID_LANCER_G6_FC: | |
4345 | case PCI_DEVICE_ID_LANCER_G7_FC: | |
4346 | break; | |
4347 | default: | |
4348 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
4349 | "8347 Invalid device found: " | |
4350 | "0x%04x\n", ptr->device); | |
4351 | return -EBADSLT; | |
4352 | } | |
4353 | ||
4354 | /* Check for only one function 0 ID to ensure only one HBA on | |
4355 | * secondary bus | |
4356 | */ | |
4357 | if (ptr->devfn == 0) { | |
4358 | if (++counter > 1) { | |
4359 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
4360 | "8348 More than one device on " | |
4361 | "secondary bus found\n"); | |
4362 | return -EBADSLT; | |
4363 | } | |
4364 | } | |
4365 | } | |
4366 | ||
4367 | return 0; | |
4368 | } | |
4369 | ||
9bad7671 | 4370 | /** |
3621a710 | 4371 | * lpfc_info - Info entry point of scsi_host_template data structure |
9bad7671 JS |
4372 | * @host: The scsi host for which this call is being executed. |
4373 | * | |
4374 | * This routine provides module information about hba. | |
4375 | * | |
4376 | * Reutrn code: | |
4377 | * Pointer to char - Success. | |
4378 | **/ | |
dea3101e JB |
4379 | const char * |
4380 | lpfc_info(struct Scsi_Host *host) | |
4381 | { | |
2e0fef85 JS |
4382 | struct lpfc_vport *vport = (struct lpfc_vport *) host->hostdata; |
4383 | struct lpfc_hba *phba = vport->phba; | |
5021267a JS |
4384 | int link_speed = 0; |
4385 | static char lpfcinfobuf[384]; | |
4386 | char tmp[384] = {0}; | |
dea3101e | 4387 | |
5021267a | 4388 | memset(lpfcinfobuf, 0, sizeof(lpfcinfobuf)); |
dea3101e | 4389 | if (phba && phba->pcidev){ |
5021267a JS |
4390 | /* Model Description */ |
4391 | scnprintf(tmp, sizeof(tmp), phba->ModelDesc); | |
4392 | if (strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf)) >= | |
4393 | sizeof(lpfcinfobuf)) | |
4394 | goto buffer_done; | |
4395 | ||
4396 | /* PCI Info */ | |
4397 | scnprintf(tmp, sizeof(tmp), | |
4398 | " on PCI bus %02x device %02x irq %d", | |
4399 | phba->pcidev->bus->number, phba->pcidev->devfn, | |
4400 | phba->pcidev->irq); | |
4401 | if (strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf)) >= | |
4402 | sizeof(lpfcinfobuf)) | |
4403 | goto buffer_done; | |
4404 | ||
4405 | /* Port Number */ | |
dea3101e | 4406 | if (phba->Port[0]) { |
5021267a JS |
4407 | scnprintf(tmp, sizeof(tmp), " port %s", phba->Port); |
4408 | if (strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf)) >= | |
4409 | sizeof(lpfcinfobuf)) | |
4410 | goto buffer_done; | |
dea3101e | 4411 | } |
5021267a JS |
4412 | |
4413 | /* Link Speed */ | |
a085e87c | 4414 | link_speed = lpfc_sli_port_speed_get(phba); |
5021267a JS |
4415 | if (link_speed != 0) { |
4416 | scnprintf(tmp, sizeof(tmp), | |
4417 | " Logical Link Speed: %d Mbps", link_speed); | |
4418 | if (strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf)) >= | |
4419 | sizeof(lpfcinfobuf)) | |
4420 | goto buffer_done; | |
4421 | } | |
4422 | ||
4423 | /* PCI resettable */ | |
4424 | if (!lpfc_check_pci_resettable(phba)) { | |
4425 | scnprintf(tmp, sizeof(tmp), " PCI resettable"); | |
4426 | strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf)); | |
4427 | } | |
dea3101e | 4428 | } |
5021267a JS |
4429 | |
4430 | buffer_done: | |
dea3101e JB |
4431 | return lpfcinfobuf; |
4432 | } | |
4433 | ||
9bad7671 | 4434 | /** |
3621a710 | 4435 | * lpfc_poll_rearm_time - Routine to modify fcp_poll timer of hba |
9bad7671 JS |
4436 | * @phba: The Hba for which this call is being executed. |
4437 | * | |
4438 | * This routine modifies fcp_poll_timer field of @phba by cfg_poll_tmo. | |
4439 | * The default value of cfg_poll_tmo is 10 milliseconds. | |
4440 | **/ | |
875fbdfe JSEC |
4441 | static __inline__ void lpfc_poll_rearm_timer(struct lpfc_hba * phba) |
4442 | { | |
4443 | unsigned long poll_tmo_expires = | |
4444 | (jiffies + msecs_to_jiffies(phba->cfg_poll_tmo)); | |
4445 | ||
895427bd | 4446 | if (!list_empty(&phba->sli.sli3_ring[LPFC_FCP_RING].txcmplq)) |
875fbdfe JSEC |
4447 | mod_timer(&phba->fcp_poll_timer, |
4448 | poll_tmo_expires); | |
4449 | } | |
4450 | ||
9bad7671 | 4451 | /** |
3621a710 | 4452 | * lpfc_poll_start_timer - Routine to start fcp_poll_timer of HBA |
9bad7671 JS |
4453 | * @phba: The Hba for which this call is being executed. |
4454 | * | |
4455 | * This routine starts the fcp_poll_timer of @phba. | |
4456 | **/ | |
875fbdfe JSEC |
4457 | void lpfc_poll_start_timer(struct lpfc_hba * phba) |
4458 | { | |
4459 | lpfc_poll_rearm_timer(phba); | |
4460 | } | |
4461 | ||
9bad7671 | 4462 | /** |
3621a710 | 4463 | * lpfc_poll_timeout - Restart polling timer |
9bad7671 JS |
4464 | * @ptr: Map to lpfc_hba data structure pointer. |
4465 | * | |
4466 | * This routine restarts fcp_poll timer, when FCP ring polling is enable | |
4467 | * and FCP Ring interrupt is disable. | |
4468 | **/ | |
4469 | ||
f22eb4d3 | 4470 | void lpfc_poll_timeout(struct timer_list *t) |
875fbdfe | 4471 | { |
f22eb4d3 | 4472 | struct lpfc_hba *phba = from_timer(phba, t, fcp_poll_timer); |
875fbdfe JSEC |
4473 | |
4474 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { | |
45ed1190 | 4475 | lpfc_sli_handle_fast_ring_event(phba, |
895427bd | 4476 | &phba->sli.sli3_ring[LPFC_FCP_RING], HA_R0RE_REQ); |
45ed1190 | 4477 | |
875fbdfe JSEC |
4478 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
4479 | lpfc_poll_rearm_timer(phba); | |
4480 | } | |
875fbdfe JSEC |
4481 | } |
4482 | ||
9bad7671 | 4483 | /** |
3621a710 | 4484 | * lpfc_queuecommand - scsi_host_template queuecommand entry point |
9bad7671 JS |
4485 | * @cmnd: Pointer to scsi_cmnd data structure. |
4486 | * @done: Pointer to done routine. | |
4487 | * | |
4488 | * Driver registers this routine to scsi midlayer to submit a @cmd to process. | |
4489 | * This routine prepares an IOCB from scsi command and provides to firmware. | |
4490 | * The @done callback is invoked after driver finished processing the command. | |
4491 | * | |
4492 | * Return value : | |
4493 | * 0 - Success | |
4494 | * SCSI_MLQUEUE_HOST_BUSY - Block all devices served by this host temporarily. | |
4495 | **/ | |
dea3101e | 4496 | static int |
b9a7c631 | 4497 | lpfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) |
dea3101e | 4498 | { |
2e0fef85 JS |
4499 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
4500 | struct lpfc_hba *phba = vport->phba; | |
1ba981fd | 4501 | struct lpfc_rport_data *rdata; |
1c6f4ef5 | 4502 | struct lpfc_nodelist *ndlp; |
c490850a | 4503 | struct lpfc_io_buf *lpfc_cmd; |
19a7b4ae | 4504 | struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); |
4c47efc1 | 4505 | int err, idx; |
6a828b0f JS |
4506 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
4507 | int cpu; | |
4508 | #endif | |
dea3101e | 4509 | |
1ba981fd | 4510 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
b0e83012 JS |
4511 | |
4512 | /* sanity check on references */ | |
4513 | if (unlikely(!rdata) || unlikely(!rport)) | |
4514 | goto out_fail_command; | |
4515 | ||
19a7b4ae JSEC |
4516 | err = fc_remote_port_chkready(rport); |
4517 | if (err) { | |
4518 | cmnd->result = err; | |
dea3101e JB |
4519 | goto out_fail_command; |
4520 | } | |
1c6f4ef5 | 4521 | ndlp = rdata->pnode; |
dea3101e | 4522 | |
bf08611b | 4523 | if ((scsi_get_prot_op(cmnd) != SCSI_PROT_NORMAL) && |
acd6859b | 4524 | (!(phba->sli3_options & LPFC_SLI3_BG_ENABLED))) { |
e2a0a9d6 | 4525 | |
6a9c52cf JS |
4526 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
4527 | "9058 BLKGRD: ERROR: rcvd protected cmd:%02x" | |
4528 | " op:%02x str=%s without registering for" | |
4529 | " BlockGuard - Rejecting command\n", | |
e2a0a9d6 JS |
4530 | cmnd->cmnd[0], scsi_get_prot_op(cmnd), |
4531 | dif_op_str[scsi_get_prot_op(cmnd)]); | |
4532 | goto out_fail_command; | |
4533 | } | |
4534 | ||
dea3101e | 4535 | /* |
19a7b4ae JSEC |
4536 | * Catch race where our node has transitioned, but the |
4537 | * transport is still transitioning. | |
dea3101e | 4538 | */ |
6b415f5d JS |
4539 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) |
4540 | goto out_tgt_busy; | |
2a5b7d62 JS |
4541 | if (lpfc_ndlp_check_qdepth(phba, ndlp)) { |
4542 | if (atomic_read(&ndlp->cmd_pending) >= ndlp->cmd_qdepth) { | |
4543 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP_ERROR, | |
4544 | "3377 Target Queue Full, scsi Id:%d " | |
4545 | "Qdepth:%d Pending command:%d" | |
4546 | " WWNN:%02x:%02x:%02x:%02x:" | |
4547 | "%02x:%02x:%02x:%02x, " | |
4548 | " WWPN:%02x:%02x:%02x:%02x:" | |
4549 | "%02x:%02x:%02x:%02x", | |
4550 | ndlp->nlp_sid, ndlp->cmd_qdepth, | |
4551 | atomic_read(&ndlp->cmd_pending), | |
4552 | ndlp->nlp_nodename.u.wwn[0], | |
4553 | ndlp->nlp_nodename.u.wwn[1], | |
4554 | ndlp->nlp_nodename.u.wwn[2], | |
4555 | ndlp->nlp_nodename.u.wwn[3], | |
4556 | ndlp->nlp_nodename.u.wwn[4], | |
4557 | ndlp->nlp_nodename.u.wwn[5], | |
4558 | ndlp->nlp_nodename.u.wwn[6], | |
4559 | ndlp->nlp_nodename.u.wwn[7], | |
4560 | ndlp->nlp_portname.u.wwn[0], | |
4561 | ndlp->nlp_portname.u.wwn[1], | |
4562 | ndlp->nlp_portname.u.wwn[2], | |
4563 | ndlp->nlp_portname.u.wwn[3], | |
4564 | ndlp->nlp_portname.u.wwn[4], | |
4565 | ndlp->nlp_portname.u.wwn[5], | |
4566 | ndlp->nlp_portname.u.wwn[6], | |
4567 | ndlp->nlp_portname.u.wwn[7]); | |
4568 | goto out_tgt_busy; | |
4569 | } | |
64bf0099 | 4570 | } |
f91bc594 | 4571 | |
ace44e48 | 4572 | lpfc_cmd = lpfc_get_scsi_buf(phba, ndlp, cmnd); |
dea3101e | 4573 | if (lpfc_cmd == NULL) { |
eaf15d5b | 4574 | lpfc_rampdown_queue_depth(phba); |
92d7f7b0 | 4575 | |
895427bd | 4576 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP_ERROR, |
e8b62011 JS |
4577 | "0707 driver's buffer pool is empty, " |
4578 | "IO busied\n"); | |
dea3101e JB |
4579 | goto out_host_busy; |
4580 | } | |
4581 | ||
4582 | /* | |
4583 | * Store the midlayer's command structure for the completion phase | |
4584 | * and complete the command initialization. | |
4585 | */ | |
4586 | lpfc_cmd->pCmd = cmnd; | |
4587 | lpfc_cmd->rdata = rdata; | |
2a5b7d62 | 4588 | lpfc_cmd->ndlp = ndlp; |
dea3101e | 4589 | cmnd->host_scribble = (unsigned char *)lpfc_cmd; |
dea3101e | 4590 | |
e2a0a9d6 | 4591 | if (scsi_get_prot_op(cmnd) != SCSI_PROT_NORMAL) { |
6a9c52cf | 4592 | if (vport->phba->cfg_enable_bg) { |
737d4248 JS |
4593 | lpfc_printf_vlog(vport, |
4594 | KERN_INFO, LOG_SCSI_CMD, | |
2613470a JS |
4595 | "9033 BLKGRD: rcvd %s cmd:x%x " |
4596 | "sector x%llx cnt %u pt %x\n", | |
4597 | dif_op_str[scsi_get_prot_op(cmnd)], | |
4598 | cmnd->cmnd[0], | |
4599 | (unsigned long long)scsi_get_lba(cmnd), | |
4600 | blk_rq_sectors(cmnd->request), | |
4601 | (cmnd->cmnd[1]>>5)); | |
6a9c52cf | 4602 | } |
e2a0a9d6 JS |
4603 | err = lpfc_bg_scsi_prep_dma_buf(phba, lpfc_cmd); |
4604 | } else { | |
6a9c52cf | 4605 | if (vport->phba->cfg_enable_bg) { |
737d4248 JS |
4606 | lpfc_printf_vlog(vport, |
4607 | KERN_INFO, LOG_SCSI_CMD, | |
2613470a JS |
4608 | "9038 BLKGRD: rcvd PROT_NORMAL cmd: " |
4609 | "x%x sector x%llx cnt %u pt %x\n", | |
4610 | cmnd->cmnd[0], | |
4611 | (unsigned long long)scsi_get_lba(cmnd), | |
9a6b09c0 | 4612 | blk_rq_sectors(cmnd->request), |
2613470a | 4613 | (cmnd->cmnd[1]>>5)); |
6a9c52cf | 4614 | } |
e2a0a9d6 JS |
4615 | err = lpfc_scsi_prep_dma_buf(phba, lpfc_cmd); |
4616 | } | |
4617 | ||
8f82561d JS |
4618 | if (unlikely(err)) { |
4619 | if (err == 2) { | |
4620 | cmnd->result = DID_ERROR << 16; | |
4621 | goto out_fail_command_release_buf; | |
4622 | } | |
dea3101e | 4623 | goto out_host_busy_free_buf; |
5e0e2318 | 4624 | } |
dea3101e | 4625 | |
2e0fef85 | 4626 | lpfc_scsi_prep_cmnd(vport, lpfc_cmd, ndlp); |
dea3101e | 4627 | |
6a828b0f | 4628 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
8f82561d | 4629 | if (unlikely(phba->cpucheck_on & LPFC_CHECK_SCSI_IO)) { |
d6d189ce | 4630 | cpu = raw_smp_processor_id(); |
6a828b0f JS |
4631 | if (cpu < LPFC_CHECK_CPU_CNT) { |
4632 | struct lpfc_sli4_hdw_queue *hdwq = | |
4633 | &phba->sli4_hba.hdwq[lpfc_cmd->hdwq_no]; | |
4634 | hdwq->cpucheck_xmt_io[cpu]++; | |
4635 | } | |
4636 | } | |
4637 | #endif | |
3772a991 | 4638 | err = lpfc_sli_issue_iocb(phba, LPFC_FCP_RING, |
92d7f7b0 | 4639 | &lpfc_cmd->cur_iocbq, SLI_IOCB_RET_IOCB); |
eaf15d5b | 4640 | if (err) { |
76f96b6d JS |
4641 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, |
4642 | "3376 FCP could not issue IOCB err %x" | |
9cb78c16 | 4643 | "FCP cmd x%x <%d/%llu> " |
76f96b6d JS |
4644 | "sid: x%x did: x%x oxid: x%x " |
4645 | "Data: x%x x%x x%x x%x\n", | |
4646 | err, cmnd->cmnd[0], | |
4647 | cmnd->device ? cmnd->device->id : 0xffff, | |
9cb78c16 | 4648 | cmnd->device ? cmnd->device->lun : (u64) -1, |
76f96b6d JS |
4649 | vport->fc_myDID, ndlp->nlp_DID, |
4650 | phba->sli_rev == LPFC_SLI_REV4 ? | |
4651 | lpfc_cmd->cur_iocbq.sli4_xritag : 0xffff, | |
4652 | lpfc_cmd->cur_iocbq.iocb.ulpContext, | |
4653 | lpfc_cmd->cur_iocbq.iocb.ulpIoTag, | |
4654 | lpfc_cmd->cur_iocbq.iocb.ulpTimeout, | |
4655 | (uint32_t) | |
4656 | (cmnd->request->timeout / 1000)); | |
4657 | ||
dea3101e | 4658 | goto out_host_busy_free_buf; |
eaf15d5b | 4659 | } |
875fbdfe | 4660 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { |
45ed1190 | 4661 | lpfc_sli_handle_fast_ring_event(phba, |
895427bd | 4662 | &phba->sli.sli3_ring[LPFC_FCP_RING], HA_R0RE_REQ); |
45ed1190 | 4663 | |
875fbdfe JSEC |
4664 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
4665 | lpfc_poll_rearm_timer(phba); | |
4666 | } | |
4667 | ||
c490850a JS |
4668 | if (phba->cfg_xri_rebalancing) |
4669 | lpfc_keep_pvt_pool_above_lowwm(phba, lpfc_cmd->hdwq_no); | |
4670 | ||
dea3101e JB |
4671 | return 0; |
4672 | ||
4673 | out_host_busy_free_buf: | |
1fbf9742 | 4674 | idx = lpfc_cmd->hdwq_no; |
bcf4dbfa | 4675 | lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd); |
4c47efc1 JS |
4676 | if (phba->sli4_hba.hdwq) { |
4677 | switch (lpfc_cmd->fcp_cmnd->fcpCntl3) { | |
4678 | case WRITE_DATA: | |
4679 | phba->sli4_hba.hdwq[idx].scsi_cstat.output_requests--; | |
4680 | break; | |
4681 | case READ_DATA: | |
4682 | phba->sli4_hba.hdwq[idx].scsi_cstat.input_requests--; | |
4683 | break; | |
4684 | default: | |
4685 | phba->sli4_hba.hdwq[idx].scsi_cstat.control_requests--; | |
4686 | } | |
4687 | } | |
0bd4ca25 | 4688 | lpfc_release_scsi_buf(phba, lpfc_cmd); |
dea3101e JB |
4689 | out_host_busy: |
4690 | return SCSI_MLQUEUE_HOST_BUSY; | |
4691 | ||
3496343d MC |
4692 | out_tgt_busy: |
4693 | return SCSI_MLQUEUE_TARGET_BUSY; | |
4694 | ||
5e0e2318 JS |
4695 | out_fail_command_release_buf: |
4696 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
4697 | ||
dea3101e | 4698 | out_fail_command: |
b9a7c631 | 4699 | cmnd->scsi_done(cmnd); |
dea3101e JB |
4700 | return 0; |
4701 | } | |
4702 | ||
f281233d | 4703 | |
9bad7671 | 4704 | /** |
3621a710 | 4705 | * lpfc_abort_handler - scsi_host_template eh_abort_handler entry point |
9bad7671 JS |
4706 | * @cmnd: Pointer to scsi_cmnd data structure. |
4707 | * | |
4708 | * This routine aborts @cmnd pending in base driver. | |
4709 | * | |
4710 | * Return code : | |
4711 | * 0x2003 - Error | |
4712 | * 0x2002 - Success | |
4713 | **/ | |
dea3101e | 4714 | static int |
63c59c3b | 4715 | lpfc_abort_handler(struct scsi_cmnd *cmnd) |
dea3101e | 4716 | { |
2e0fef85 JS |
4717 | struct Scsi_Host *shost = cmnd->device->host; |
4718 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
4719 | struct lpfc_hba *phba = vport->phba; | |
0bd4ca25 JSEC |
4720 | struct lpfc_iocbq *iocb; |
4721 | struct lpfc_iocbq *abtsiocb; | |
c490850a | 4722 | struct lpfc_io_buf *lpfc_cmd; |
dea3101e | 4723 | IOCB_t *cmd, *icmd; |
3a70730a | 4724 | int ret = SUCCESS, status = 0; |
8931c73b | 4725 | struct lpfc_sli_ring *pring_s4 = NULL; |
895427bd | 4726 | int ret_val; |
59c68eaa | 4727 | unsigned long flags; |
fa61a54e | 4728 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(waitq); |
dea3101e | 4729 | |
3a70730a | 4730 | status = fc_block_scsi_eh(cmnd); |
908e18e4 | 4731 | if (status != 0 && status != SUCCESS) |
3a70730a | 4732 | return status; |
4f2e66c6 | 4733 | |
c2017260 JS |
4734 | lpfc_cmd = (struct lpfc_io_buf *)cmnd->host_scribble; |
4735 | if (!lpfc_cmd) | |
4736 | return ret; | |
4737 | ||
876dd7d0 | 4738 | spin_lock_irqsave(&phba->hbalock, flags); |
4f2e66c6 | 4739 | /* driver queued commands are in process of being flushed */ |
c00f62e6 | 4740 | if (phba->hba_flag & HBA_IOQ_FLUSH) { |
4f2e66c6 JS |
4741 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
4742 | "3168 SCSI Layer abort requested I/O has been " | |
4743 | "flushed by LLD.\n"); | |
c2017260 JS |
4744 | ret = FAILED; |
4745 | goto out_unlock; | |
4f2e66c6 JS |
4746 | } |
4747 | ||
c2017260 JS |
4748 | /* Guard against IO completion being called at same time */ |
4749 | spin_lock(&lpfc_cmd->buf_lock); | |
4750 | ||
4751 | if (!lpfc_cmd->pCmd) { | |
eee8877e JS |
4752 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
4753 | "2873 SCSI Layer I/O Abort Request IO CMPL Status " | |
9cb78c16 | 4754 | "x%x ID %d LUN %llu\n", |
3a70730a | 4755 | SUCCESS, cmnd->device->id, cmnd->device->lun); |
c2017260 | 4756 | goto out_unlock_buf; |
eee8877e | 4757 | } |
dea3101e | 4758 | |
4f2e66c6 | 4759 | iocb = &lpfc_cmd->cur_iocbq; |
8931c73b | 4760 | if (phba->sli_rev == LPFC_SLI_REV4) { |
c00f62e6 | 4761 | pring_s4 = phba->sli4_hba.hdwq[iocb->hba_wqidx].io_wq->pring; |
8931c73b JS |
4762 | if (!pring_s4) { |
4763 | ret = FAILED; | |
c2017260 | 4764 | goto out_unlock_buf; |
8931c73b JS |
4765 | } |
4766 | spin_lock(&pring_s4->ring_lock); | |
4767 | } | |
4f2e66c6 JS |
4768 | /* the command is in process of being cancelled */ |
4769 | if (!(iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ)) { | |
4f2e66c6 JS |
4770 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
4771 | "3169 SCSI Layer abort requested I/O has been " | |
4772 | "cancelled by LLD.\n"); | |
c2017260 JS |
4773 | ret = FAILED; |
4774 | goto out_unlock_ring; | |
4f2e66c6 | 4775 | } |
0bd4ca25 | 4776 | /* |
c490850a | 4777 | * If pCmd field of the corresponding lpfc_io_buf structure |
0bd4ca25 JSEC |
4778 | * points to a different SCSI command, then the driver has |
4779 | * already completed this command, but the midlayer did not | |
4f2e66c6 | 4780 | * see the completion before the eh fired. Just return SUCCESS. |
0bd4ca25 | 4781 | */ |
4f2e66c6 JS |
4782 | if (lpfc_cmd->pCmd != cmnd) { |
4783 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, | |
4784 | "3170 SCSI Layer abort requested I/O has been " | |
4785 | "completed by LLD.\n"); | |
c2017260 | 4786 | goto out_unlock_ring; |
4f2e66c6 | 4787 | } |
dea3101e | 4788 | |
0bd4ca25 | 4789 | BUG_ON(iocb->context1 != lpfc_cmd); |
dea3101e | 4790 | |
ee62021a JS |
4791 | /* abort issued in recovery is still in progress */ |
4792 | if (iocb->iocb_flag & LPFC_DRIVER_ABORTED) { | |
4793 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, | |
4794 | "3389 SCSI Layer I/O Abort Request is pending\n"); | |
8931c73b JS |
4795 | if (phba->sli_rev == LPFC_SLI_REV4) |
4796 | spin_unlock(&pring_s4->ring_lock); | |
c2017260 | 4797 | spin_unlock(&lpfc_cmd->buf_lock); |
ee62021a JS |
4798 | spin_unlock_irqrestore(&phba->hbalock, flags); |
4799 | goto wait_for_cmpl; | |
4800 | } | |
4801 | ||
4f2e66c6 | 4802 | abtsiocb = __lpfc_sli_get_iocbq(phba); |
0bd4ca25 JSEC |
4803 | if (abtsiocb == NULL) { |
4804 | ret = FAILED; | |
c2017260 | 4805 | goto out_unlock_ring; |
dea3101e JB |
4806 | } |
4807 | ||
afbd8d88 JS |
4808 | /* Indicate the IO is being aborted by the driver. */ |
4809 | iocb->iocb_flag |= LPFC_DRIVER_ABORTED; | |
4810 | ||
dea3101e | 4811 | /* |
0bd4ca25 JSEC |
4812 | * The scsi command can not be in txq and it is in flight because the |
4813 | * pCmd is still pointig at the SCSI command we have to abort. There | |
4814 | * is no need to search the txcmplq. Just send an abort to the FW. | |
dea3101e | 4815 | */ |
dea3101e | 4816 | |
0bd4ca25 JSEC |
4817 | cmd = &iocb->iocb; |
4818 | icmd = &abtsiocb->iocb; | |
4819 | icmd->un.acxri.abortType = ABORT_TYPE_ABTS; | |
4820 | icmd->un.acxri.abortContextTag = cmd->ulpContext; | |
3772a991 JS |
4821 | if (phba->sli_rev == LPFC_SLI_REV4) |
4822 | icmd->un.acxri.abortIoTag = iocb->sli4_xritag; | |
4823 | else | |
4824 | icmd->un.acxri.abortIoTag = cmd->ulpIoTag; | |
dea3101e | 4825 | |
0bd4ca25 JSEC |
4826 | icmd->ulpLe = 1; |
4827 | icmd->ulpClass = cmd->ulpClass; | |
5ffc266e JS |
4828 | |
4829 | /* ABTS WQE must go to the same WQ as the WQE to be aborted */ | |
895427bd | 4830 | abtsiocb->hba_wqidx = iocb->hba_wqidx; |
341af102 | 4831 | abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX; |
9bd2bff5 JS |
4832 | if (iocb->iocb_flag & LPFC_IO_FOF) |
4833 | abtsiocb->iocb_flag |= LPFC_IO_FOF; | |
5ffc266e | 4834 | |
2e0fef85 | 4835 | if (lpfc_is_link_up(phba)) |
0bd4ca25 JSEC |
4836 | icmd->ulpCommand = CMD_ABORT_XRI_CN; |
4837 | else | |
4838 | icmd->ulpCommand = CMD_CLOSE_XRI_CN; | |
dea3101e | 4839 | |
0bd4ca25 | 4840 | abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl; |
2e0fef85 | 4841 | abtsiocb->vport = vport; |
8931c73b | 4842 | lpfc_cmd->waitq = &waitq; |
98912dda | 4843 | if (phba->sli_rev == LPFC_SLI_REV4) { |
98912dda | 4844 | /* Note: both hbalock and ring_lock must be set here */ |
98912dda JS |
4845 | ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno, |
4846 | abtsiocb, 0); | |
59c68eaa | 4847 | spin_unlock(&pring_s4->ring_lock); |
98912dda JS |
4848 | } else { |
4849 | ret_val = __lpfc_sli_issue_iocb(phba, LPFC_FCP_RING, | |
4850 | abtsiocb, 0); | |
4851 | } | |
4f2e66c6 | 4852 | |
98912dda | 4853 | if (ret_val == IOCB_ERROR) { |
8931c73b JS |
4854 | /* Indicate the IO is not being aborted by the driver. */ |
4855 | iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED; | |
4856 | lpfc_cmd->waitq = NULL; | |
c2017260 | 4857 | spin_unlock(&lpfc_cmd->buf_lock); |
4b4a2235 | 4858 | spin_unlock_irqrestore(&phba->hbalock, flags); |
0bd4ca25 JSEC |
4859 | lpfc_sli_release_iocbq(phba, abtsiocb); |
4860 | ret = FAILED; | |
4861 | goto out; | |
4862 | } | |
dea3101e | 4863 | |
4b4a2235 | 4864 | /* no longer need the lock after this point */ |
c2017260 | 4865 | spin_unlock(&lpfc_cmd->buf_lock); |
4b4a2235 | 4866 | spin_unlock_irqrestore(&phba->hbalock, flags); |
c2017260 | 4867 | |
875fbdfe | 4868 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
45ed1190 | 4869 | lpfc_sli_handle_fast_ring_event(phba, |
895427bd | 4870 | &phba->sli.sli3_ring[LPFC_FCP_RING], HA_R0RE_REQ); |
875fbdfe | 4871 | |
ee62021a | 4872 | wait_for_cmpl: |
0bd4ca25 | 4873 | /* Wait for abort to complete */ |
fa61a54e JS |
4874 | wait_event_timeout(waitq, |
4875 | (lpfc_cmd->pCmd != cmnd), | |
256ec0d0 | 4876 | msecs_to_jiffies(2*vport->cfg_devloss_tmo*1000)); |
ee62021a | 4877 | |
c2017260 | 4878 | spin_lock(&lpfc_cmd->buf_lock); |
dea3101e | 4879 | |
0bd4ca25 JSEC |
4880 | if (lpfc_cmd->pCmd == cmnd) { |
4881 | ret = FAILED; | |
e8b62011 JS |
4882 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
4883 | "0748 abort handler timed out waiting " | |
4b160ae8 | 4884 | "for aborting I/O (xri:x%x) to complete: " |
9cb78c16 | 4885 | "ret %#x, ID %d, LUN %llu\n", |
247ca945 JS |
4886 | iocb->sli4_xritag, ret, |
4887 | cmnd->device->id, cmnd->device->lun); | |
dea3101e | 4888 | } |
b9e5a2d9 JS |
4889 | |
4890 | lpfc_cmd->waitq = NULL; | |
4891 | ||
c2017260 | 4892 | spin_unlock(&lpfc_cmd->buf_lock); |
4f2e66c6 | 4893 | goto out; |
dea3101e | 4894 | |
c2017260 JS |
4895 | out_unlock_ring: |
4896 | if (phba->sli_rev == LPFC_SLI_REV4) | |
4897 | spin_unlock(&pring_s4->ring_lock); | |
4898 | out_unlock_buf: | |
4899 | spin_unlock(&lpfc_cmd->buf_lock); | |
4f2e66c6 | 4900 | out_unlock: |
876dd7d0 | 4901 | spin_unlock_irqrestore(&phba->hbalock, flags); |
4f2e66c6 | 4902 | out: |
e8b62011 JS |
4903 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
4904 | "0749 SCSI Layer I/O Abort Request Status x%x ID %d " | |
9cb78c16 | 4905 | "LUN %llu\n", ret, cmnd->device->id, |
5cd049a5 | 4906 | cmnd->device->lun); |
63c59c3b | 4907 | return ret; |
8fa728a2 JG |
4908 | } |
4909 | ||
bbb9d180 JS |
4910 | static char * |
4911 | lpfc_taskmgmt_name(uint8_t task_mgmt_cmd) | |
4912 | { | |
4913 | switch (task_mgmt_cmd) { | |
4914 | case FCP_ABORT_TASK_SET: | |
4915 | return "ABORT_TASK_SET"; | |
4916 | case FCP_CLEAR_TASK_SET: | |
4917 | return "FCP_CLEAR_TASK_SET"; | |
4918 | case FCP_BUS_RESET: | |
4919 | return "FCP_BUS_RESET"; | |
4920 | case FCP_LUN_RESET: | |
4921 | return "FCP_LUN_RESET"; | |
4922 | case FCP_TARGET_RESET: | |
4923 | return "FCP_TARGET_RESET"; | |
4924 | case FCP_CLEAR_ACA: | |
4925 | return "FCP_CLEAR_ACA"; | |
4926 | case FCP_TERMINATE_TASK: | |
4927 | return "FCP_TERMINATE_TASK"; | |
4928 | default: | |
4929 | return "unknown"; | |
4930 | } | |
4931 | } | |
4932 | ||
53151bbb JS |
4933 | |
4934 | /** | |
4935 | * lpfc_check_fcp_rsp - check the returned fcp_rsp to see if task failed | |
4936 | * @vport: The virtual port for which this call is being executed. | |
c490850a | 4937 | * @lpfc_cmd: Pointer to lpfc_io_buf data structure. |
53151bbb JS |
4938 | * |
4939 | * This routine checks the FCP RSP INFO to see if the tsk mgmt command succeded | |
4940 | * | |
4941 | * Return code : | |
4942 | * 0x2003 - Error | |
4943 | * 0x2002 - Success | |
4944 | **/ | |
4945 | static int | |
c490850a | 4946 | lpfc_check_fcp_rsp(struct lpfc_vport *vport, struct lpfc_io_buf *lpfc_cmd) |
53151bbb JS |
4947 | { |
4948 | struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp; | |
4949 | uint32_t rsp_info; | |
4950 | uint32_t rsp_len; | |
4951 | uint8_t rsp_info_code; | |
4952 | int ret = FAILED; | |
4953 | ||
4954 | ||
4955 | if (fcprsp == NULL) | |
4956 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
4957 | "0703 fcp_rsp is missing\n"); | |
4958 | else { | |
4959 | rsp_info = fcprsp->rspStatus2; | |
4960 | rsp_len = be32_to_cpu(fcprsp->rspRspLen); | |
4961 | rsp_info_code = fcprsp->rspInfo3; | |
4962 | ||
4963 | ||
4964 | lpfc_printf_vlog(vport, KERN_INFO, | |
4965 | LOG_FCP, | |
4966 | "0706 fcp_rsp valid 0x%x," | |
4967 | " rsp len=%d code 0x%x\n", | |
4968 | rsp_info, | |
4969 | rsp_len, rsp_info_code); | |
4970 | ||
996a02ae JS |
4971 | /* If FCP_RSP_LEN_VALID bit is one, then the FCP_RSP_LEN |
4972 | * field specifies the number of valid bytes of FCP_RSP_INFO. | |
4973 | * The FCP_RSP_LEN field shall be set to 0x04 or 0x08 | |
4974 | */ | |
4975 | if ((fcprsp->rspStatus2 & RSP_LEN_VALID) && | |
4976 | ((rsp_len == 8) || (rsp_len == 4))) { | |
53151bbb JS |
4977 | switch (rsp_info_code) { |
4978 | case RSP_NO_FAILURE: | |
4979 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
4980 | "0715 Task Mgmt No Failure\n"); | |
4981 | ret = SUCCESS; | |
4982 | break; | |
4983 | case RSP_TM_NOT_SUPPORTED: /* TM rejected */ | |
4984 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
4985 | "0716 Task Mgmt Target " | |
4986 | "reject\n"); | |
4987 | break; | |
4988 | case RSP_TM_NOT_COMPLETED: /* TM failed */ | |
4989 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
4990 | "0717 Task Mgmt Target " | |
4991 | "failed TM\n"); | |
4992 | break; | |
4993 | case RSP_TM_INVALID_LU: /* TM to invalid LU! */ | |
4994 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
4995 | "0718 Task Mgmt to invalid " | |
4996 | "LUN\n"); | |
4997 | break; | |
4998 | } | |
4999 | } | |
5000 | } | |
5001 | return ret; | |
5002 | } | |
5003 | ||
5004 | ||
9bad7671 | 5005 | /** |
bbb9d180 JS |
5006 | * lpfc_send_taskmgmt - Generic SCSI Task Mgmt Handler |
5007 | * @vport: The virtual port for which this call is being executed. | |
5008 | * @rdata: Pointer to remote port local data | |
5009 | * @tgt_id: Target ID of remote device. | |
5010 | * @lun_id: Lun number for the TMF | |
5011 | * @task_mgmt_cmd: type of TMF to send | |
9bad7671 | 5012 | * |
bbb9d180 JS |
5013 | * This routine builds and sends a TMF (SCSI Task Mgmt Function) to |
5014 | * a remote port. | |
9bad7671 | 5015 | * |
bbb9d180 JS |
5016 | * Return Code: |
5017 | * 0x2003 - Error | |
5018 | * 0x2002 - Success. | |
9bad7671 | 5019 | **/ |
dea3101e | 5020 | static int |
eed695d7 JS |
5021 | lpfc_send_taskmgmt(struct lpfc_vport *vport, struct scsi_cmnd *cmnd, |
5022 | unsigned int tgt_id, uint64_t lun_id, | |
5023 | uint8_t task_mgmt_cmd) | |
dea3101e | 5024 | { |
2e0fef85 | 5025 | struct lpfc_hba *phba = vport->phba; |
c490850a | 5026 | struct lpfc_io_buf *lpfc_cmd; |
bbb9d180 JS |
5027 | struct lpfc_iocbq *iocbq; |
5028 | struct lpfc_iocbq *iocbqrsp; | |
eed695d7 JS |
5029 | struct lpfc_rport_data *rdata; |
5030 | struct lpfc_nodelist *pnode; | |
bbb9d180 | 5031 | int ret; |
915caaaf | 5032 | int status; |
dea3101e | 5033 | |
eed695d7 JS |
5034 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
5035 | if (!rdata || !rdata->pnode || !NLP_CHK_NODE_ACT(rdata->pnode)) | |
915caaaf | 5036 | return FAILED; |
eed695d7 | 5037 | pnode = rdata->pnode; |
bbb9d180 | 5038 | |
ace44e48 | 5039 | lpfc_cmd = lpfc_get_scsi_buf(phba, pnode, NULL); |
dea3101e | 5040 | if (lpfc_cmd == NULL) |
915caaaf | 5041 | return FAILED; |
0c411222 | 5042 | lpfc_cmd->timeout = phba->cfg_task_mgmt_tmo; |
0b18ac42 | 5043 | lpfc_cmd->rdata = rdata; |
eed695d7 | 5044 | lpfc_cmd->pCmd = cmnd; |
2a5b7d62 | 5045 | lpfc_cmd->ndlp = pnode; |
dea3101e | 5046 | |
bbb9d180 JS |
5047 | status = lpfc_scsi_prep_task_mgmt_cmd(vport, lpfc_cmd, lun_id, |
5048 | task_mgmt_cmd); | |
915caaaf JS |
5049 | if (!status) { |
5050 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
5051 | return FAILED; | |
5052 | } | |
dea3101e | 5053 | |
bbb9d180 | 5054 | iocbq = &lpfc_cmd->cur_iocbq; |
0bd4ca25 | 5055 | iocbqrsp = lpfc_sli_get_iocbq(phba); |
915caaaf JS |
5056 | if (iocbqrsp == NULL) { |
5057 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
5058 | return FAILED; | |
5059 | } | |
5a0916b4 | 5060 | iocbq->iocb_cmpl = lpfc_tskmgmt_def_cmpl; |
bbb9d180 | 5061 | |
e8b62011 | 5062 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, |
9cb78c16 | 5063 | "0702 Issue %s to TGT %d LUN %llu " |
6d368e53 | 5064 | "rpi x%x nlp_flag x%x Data: x%x x%x\n", |
bbb9d180 | 5065 | lpfc_taskmgmt_name(task_mgmt_cmd), tgt_id, lun_id, |
6d368e53 JS |
5066 | pnode->nlp_rpi, pnode->nlp_flag, iocbq->sli4_xritag, |
5067 | iocbq->iocb_flag); | |
bbb9d180 | 5068 | |
3772a991 | 5069 | status = lpfc_sli_issue_iocb_wait(phba, LPFC_FCP_RING, |
915caaaf | 5070 | iocbq, iocbqrsp, lpfc_cmd->timeout); |
53151bbb JS |
5071 | if ((status != IOCB_SUCCESS) || |
5072 | (iocbqrsp->iocb.ulpStatus != IOSTAT_SUCCESS)) { | |
ae374a30 JS |
5073 | if (status != IOCB_SUCCESS || |
5074 | iocbqrsp->iocb.ulpStatus != IOSTAT_FCP_RSP_ERROR) | |
5075 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
5076 | "0727 TMF %s to TGT %d LUN %llu " | |
5077 | "failed (%d, %d) iocb_flag x%x\n", | |
5078 | lpfc_taskmgmt_name(task_mgmt_cmd), | |
5079 | tgt_id, lun_id, | |
5080 | iocbqrsp->iocb.ulpStatus, | |
5081 | iocbqrsp->iocb.un.ulpWord[4], | |
5082 | iocbq->iocb_flag); | |
53151bbb JS |
5083 | /* if ulpStatus != IOCB_SUCCESS, then status == IOCB_SUCCESS */ |
5084 | if (status == IOCB_SUCCESS) { | |
5085 | if (iocbqrsp->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR) | |
5086 | /* Something in the FCP_RSP was invalid. | |
5087 | * Check conditions */ | |
5088 | ret = lpfc_check_fcp_rsp(vport, lpfc_cmd); | |
5089 | else | |
5090 | ret = FAILED; | |
5091 | } else if (status == IOCB_TIMEDOUT) { | |
5092 | ret = TIMEOUT_ERROR; | |
5093 | } else { | |
5094 | ret = FAILED; | |
5095 | } | |
53151bbb | 5096 | } else |
bbb9d180 JS |
5097 | ret = SUCCESS; |
5098 | ||
6175c02a | 5099 | lpfc_sli_release_iocbq(phba, iocbqrsp); |
bbb9d180 JS |
5100 | |
5101 | if (ret != TIMEOUT_ERROR) | |
5102 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
5103 | ||
5104 | return ret; | |
5105 | } | |
5106 | ||
5107 | /** | |
5108 | * lpfc_chk_tgt_mapped - | |
5109 | * @vport: The virtual port to check on | |
5110 | * @cmnd: Pointer to scsi_cmnd data structure. | |
5111 | * | |
5112 | * This routine delays until the scsi target (aka rport) for the | |
5113 | * command exists (is present and logged in) or we declare it non-existent. | |
5114 | * | |
5115 | * Return code : | |
5116 | * 0x2003 - Error | |
5117 | * 0x2002 - Success | |
5118 | **/ | |
5119 | static int | |
5120 | lpfc_chk_tgt_mapped(struct lpfc_vport *vport, struct scsi_cmnd *cmnd) | |
5121 | { | |
1ba981fd | 5122 | struct lpfc_rport_data *rdata; |
1c6f4ef5 | 5123 | struct lpfc_nodelist *pnode; |
bbb9d180 JS |
5124 | unsigned long later; |
5125 | ||
1ba981fd | 5126 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
1c6f4ef5 JS |
5127 | if (!rdata) { |
5128 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
32350664 | 5129 | "0797 Tgt Map rport failure: rdata x%px\n", rdata); |
1c6f4ef5 JS |
5130 | return FAILED; |
5131 | } | |
5132 | pnode = rdata->pnode; | |
bbb9d180 JS |
5133 | /* |
5134 | * If target is not in a MAPPED state, delay until | |
5135 | * target is rediscovered or devloss timeout expires. | |
5136 | */ | |
5137 | later = msecs_to_jiffies(2 * vport->cfg_devloss_tmo * 1000) + jiffies; | |
5138 | while (time_after(later, jiffies)) { | |
5139 | if (!pnode || !NLP_CHK_NODE_ACT(pnode)) | |
5140 | return FAILED; | |
5141 | if (pnode->nlp_state == NLP_STE_MAPPED_NODE) | |
5142 | return SUCCESS; | |
5143 | schedule_timeout_uninterruptible(msecs_to_jiffies(500)); | |
1ba981fd | 5144 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
bbb9d180 JS |
5145 | if (!rdata) |
5146 | return FAILED; | |
5147 | pnode = rdata->pnode; | |
5148 | } | |
5149 | if (!pnode || !NLP_CHK_NODE_ACT(pnode) || | |
5150 | (pnode->nlp_state != NLP_STE_MAPPED_NODE)) | |
5151 | return FAILED; | |
5152 | return SUCCESS; | |
5153 | } | |
5154 | ||
5155 | /** | |
5156 | * lpfc_reset_flush_io_context - | |
5157 | * @vport: The virtual port (scsi_host) for the flush context | |
5158 | * @tgt_id: If aborting by Target contect - specifies the target id | |
5159 | * @lun_id: If aborting by Lun context - specifies the lun id | |
5160 | * @context: specifies the context level to flush at. | |
5161 | * | |
5162 | * After a reset condition via TMF, we need to flush orphaned i/o | |
5163 | * contexts from the adapter. This routine aborts any contexts | |
5164 | * outstanding, then waits for their completions. The wait is | |
5165 | * bounded by devloss_tmo though. | |
5166 | * | |
5167 | * Return code : | |
5168 | * 0x2003 - Error | |
5169 | * 0x2002 - Success | |
5170 | **/ | |
5171 | static int | |
5172 | lpfc_reset_flush_io_context(struct lpfc_vport *vport, uint16_t tgt_id, | |
5173 | uint64_t lun_id, lpfc_ctx_cmd context) | |
5174 | { | |
5175 | struct lpfc_hba *phba = vport->phba; | |
5176 | unsigned long later; | |
5177 | int cnt; | |
5178 | ||
5179 | cnt = lpfc_sli_sum_iocb(vport, tgt_id, lun_id, context); | |
6175c02a | 5180 | if (cnt) |
98912dda | 5181 | lpfc_sli_abort_taskmgmt(vport, |
895427bd | 5182 | &phba->sli.sli3_ring[LPFC_FCP_RING], |
98912dda | 5183 | tgt_id, lun_id, context); |
915caaaf JS |
5184 | later = msecs_to_jiffies(2 * vport->cfg_devloss_tmo * 1000) + jiffies; |
5185 | while (time_after(later, jiffies) && cnt) { | |
5186 | schedule_timeout_uninterruptible(msecs_to_jiffies(20)); | |
bbb9d180 | 5187 | cnt = lpfc_sli_sum_iocb(vport, tgt_id, lun_id, context); |
dea3101e | 5188 | } |
dea3101e | 5189 | if (cnt) { |
e8b62011 | 5190 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
bbb9d180 JS |
5191 | "0724 I/O flush failure for context %s : cnt x%x\n", |
5192 | ((context == LPFC_CTX_LUN) ? "LUN" : | |
5193 | ((context == LPFC_CTX_TGT) ? "TGT" : | |
5194 | ((context == LPFC_CTX_HOST) ? "HOST" : "Unknown"))), | |
5195 | cnt); | |
5196 | return FAILED; | |
dea3101e | 5197 | } |
bbb9d180 JS |
5198 | return SUCCESS; |
5199 | } | |
5200 | ||
5201 | /** | |
5202 | * lpfc_device_reset_handler - scsi_host_template eh_device_reset entry point | |
5203 | * @cmnd: Pointer to scsi_cmnd data structure. | |
5204 | * | |
5205 | * This routine does a device reset by sending a LUN_RESET task management | |
5206 | * command. | |
5207 | * | |
5208 | * Return code : | |
5209 | * 0x2003 - Error | |
5210 | * 0x2002 - Success | |
5211 | **/ | |
5212 | static int | |
5213 | lpfc_device_reset_handler(struct scsi_cmnd *cmnd) | |
5214 | { | |
5215 | struct Scsi_Host *shost = cmnd->device->host; | |
5216 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
1ba981fd | 5217 | struct lpfc_rport_data *rdata; |
1c6f4ef5 | 5218 | struct lpfc_nodelist *pnode; |
bbb9d180 | 5219 | unsigned tgt_id = cmnd->device->id; |
9cb78c16 | 5220 | uint64_t lun_id = cmnd->device->lun; |
bbb9d180 | 5221 | struct lpfc_scsi_event_header scsi_event; |
53151bbb | 5222 | int status; |
bbb9d180 | 5223 | |
1ba981fd | 5224 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
ad490b6e | 5225 | if (!rdata || !rdata->pnode) { |
1c6f4ef5 | 5226 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
32350664 | 5227 | "0798 Device Reset rdata failure: rdata x%px\n", |
ad490b6e | 5228 | rdata); |
1c6f4ef5 JS |
5229 | return FAILED; |
5230 | } | |
5231 | pnode = rdata->pnode; | |
589a52d6 | 5232 | status = fc_block_scsi_eh(cmnd); |
908e18e4 | 5233 | if (status != 0 && status != SUCCESS) |
589a52d6 | 5234 | return status; |
bbb9d180 JS |
5235 | |
5236 | status = lpfc_chk_tgt_mapped(vport, cmnd); | |
5237 | if (status == FAILED) { | |
5238 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
32350664 | 5239 | "0721 Device Reset rport failure: rdata x%px\n", rdata); |
bbb9d180 JS |
5240 | return FAILED; |
5241 | } | |
5242 | ||
5243 | scsi_event.event_type = FC_REG_SCSI_EVENT; | |
5244 | scsi_event.subcategory = LPFC_EVENT_LUNRESET; | |
5245 | scsi_event.lun = lun_id; | |
5246 | memcpy(scsi_event.wwpn, &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
5247 | memcpy(scsi_event.wwnn, &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
5248 | ||
5249 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
5250 | sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID); | |
5251 | ||
eed695d7 | 5252 | status = lpfc_send_taskmgmt(vport, cmnd, tgt_id, lun_id, |
bbb9d180 JS |
5253 | FCP_LUN_RESET); |
5254 | ||
5255 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
9cb78c16 | 5256 | "0713 SCSI layer issued Device Reset (%d, %llu) " |
bbb9d180 JS |
5257 | "return x%x\n", tgt_id, lun_id, status); |
5258 | ||
5259 | /* | |
5260 | * We have to clean up i/o as : they may be orphaned by the TMF; | |
5261 | * or if the TMF failed, they may be in an indeterminate state. | |
5262 | * So, continue on. | |
5263 | * We will report success if all the i/o aborts successfully. | |
5264 | */ | |
53151bbb JS |
5265 | if (status == SUCCESS) |
5266 | status = lpfc_reset_flush_io_context(vport, tgt_id, lun_id, | |
bbb9d180 | 5267 | LPFC_CTX_LUN); |
53151bbb JS |
5268 | |
5269 | return status; | |
bbb9d180 JS |
5270 | } |
5271 | ||
5272 | /** | |
5273 | * lpfc_target_reset_handler - scsi_host_template eh_target_reset entry point | |
5274 | * @cmnd: Pointer to scsi_cmnd data structure. | |
5275 | * | |
5276 | * This routine does a target reset by sending a TARGET_RESET task management | |
5277 | * command. | |
5278 | * | |
5279 | * Return code : | |
5280 | * 0x2003 - Error | |
5281 | * 0x2002 - Success | |
5282 | **/ | |
5283 | static int | |
5284 | lpfc_target_reset_handler(struct scsi_cmnd *cmnd) | |
5285 | { | |
5286 | struct Scsi_Host *shost = cmnd->device->host; | |
5287 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
1ba981fd | 5288 | struct lpfc_rport_data *rdata; |
1c6f4ef5 | 5289 | struct lpfc_nodelist *pnode; |
bbb9d180 | 5290 | unsigned tgt_id = cmnd->device->id; |
9cb78c16 | 5291 | uint64_t lun_id = cmnd->device->lun; |
bbb9d180 | 5292 | struct lpfc_scsi_event_header scsi_event; |
53151bbb | 5293 | int status; |
bbb9d180 | 5294 | |
1ba981fd | 5295 | rdata = lpfc_rport_data_from_scsi_device(cmnd->device); |
bbd3d738 | 5296 | if (!rdata || !rdata->pnode) { |
1c6f4ef5 | 5297 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
32350664 | 5298 | "0799 Target Reset rdata failure: rdata x%px\n", |
bbd3d738 | 5299 | rdata); |
1c6f4ef5 JS |
5300 | return FAILED; |
5301 | } | |
5302 | pnode = rdata->pnode; | |
589a52d6 | 5303 | status = fc_block_scsi_eh(cmnd); |
908e18e4 | 5304 | if (status != 0 && status != SUCCESS) |
589a52d6 | 5305 | return status; |
bbb9d180 JS |
5306 | |
5307 | status = lpfc_chk_tgt_mapped(vport, cmnd); | |
5308 | if (status == FAILED) { | |
5309 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
32350664 | 5310 | "0722 Target Reset rport failure: rdata x%px\n", rdata); |
63e480fd JS |
5311 | if (pnode) { |
5312 | spin_lock_irq(shost->host_lock); | |
5313 | pnode->nlp_flag &= ~NLP_NPR_ADISC; | |
5314 | pnode->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; | |
5315 | spin_unlock_irq(shost->host_lock); | |
5316 | } | |
8c50d25c JS |
5317 | lpfc_reset_flush_io_context(vport, tgt_id, lun_id, |
5318 | LPFC_CTX_TGT); | |
5319 | return FAST_IO_FAIL; | |
bbb9d180 JS |
5320 | } |
5321 | ||
5322 | scsi_event.event_type = FC_REG_SCSI_EVENT; | |
5323 | scsi_event.subcategory = LPFC_EVENT_TGTRESET; | |
5324 | scsi_event.lun = 0; | |
5325 | memcpy(scsi_event.wwpn, &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
5326 | memcpy(scsi_event.wwnn, &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
5327 | ||
5328 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
5329 | sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID); | |
5330 | ||
eed695d7 | 5331 | status = lpfc_send_taskmgmt(vport, cmnd, tgt_id, lun_id, |
bbb9d180 JS |
5332 | FCP_TARGET_RESET); |
5333 | ||
5334 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
9cb78c16 | 5335 | "0723 SCSI layer issued Target Reset (%d, %llu) " |
bbb9d180 JS |
5336 | "return x%x\n", tgt_id, lun_id, status); |
5337 | ||
5338 | /* | |
5339 | * We have to clean up i/o as : they may be orphaned by the TMF; | |
5340 | * or if the TMF failed, they may be in an indeterminate state. | |
5341 | * So, continue on. | |
5342 | * We will report success if all the i/o aborts successfully. | |
5343 | */ | |
53151bbb JS |
5344 | if (status == SUCCESS) |
5345 | status = lpfc_reset_flush_io_context(vport, tgt_id, lun_id, | |
3a70730a | 5346 | LPFC_CTX_TGT); |
53151bbb | 5347 | return status; |
dea3101e JB |
5348 | } |
5349 | ||
9bad7671 | 5350 | /** |
3621a710 | 5351 | * lpfc_bus_reset_handler - scsi_host_template eh_bus_reset_handler entry point |
9bad7671 JS |
5352 | * @cmnd: Pointer to scsi_cmnd data structure. |
5353 | * | |
bbb9d180 JS |
5354 | * This routine does target reset to all targets on @cmnd->device->host. |
5355 | * This emulates Parallel SCSI Bus Reset Semantics. | |
9bad7671 | 5356 | * |
bbb9d180 JS |
5357 | * Return code : |
5358 | * 0x2003 - Error | |
5359 | * 0x2002 - Success | |
9bad7671 | 5360 | **/ |
94d0e7b8 | 5361 | static int |
7054a606 | 5362 | lpfc_bus_reset_handler(struct scsi_cmnd *cmnd) |
dea3101e | 5363 | { |
2e0fef85 JS |
5364 | struct Scsi_Host *shost = cmnd->device->host; |
5365 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
dea3101e | 5366 | struct lpfc_nodelist *ndlp = NULL; |
ea2151b4 | 5367 | struct lpfc_scsi_event_header scsi_event; |
bbb9d180 JS |
5368 | int match; |
5369 | int ret = SUCCESS, status, i; | |
ea2151b4 JS |
5370 | |
5371 | scsi_event.event_type = FC_REG_SCSI_EVENT; | |
5372 | scsi_event.subcategory = LPFC_EVENT_BUSRESET; | |
5373 | scsi_event.lun = 0; | |
5374 | memcpy(scsi_event.wwpn, &vport->fc_portname, sizeof(struct lpfc_name)); | |
5375 | memcpy(scsi_event.wwnn, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
5376 | ||
bbb9d180 JS |
5377 | fc_host_post_vendor_event(shost, fc_get_event_number(), |
5378 | sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID); | |
dea3101e | 5379 | |
bf08611b | 5380 | status = fc_block_scsi_eh(cmnd); |
908e18e4 | 5381 | if (status != 0 && status != SUCCESS) |
bf08611b | 5382 | return status; |
bbb9d180 | 5383 | |
dea3101e JB |
5384 | /* |
5385 | * Since the driver manages a single bus device, reset all | |
5386 | * targets known to the driver. Should any target reset | |
5387 | * fail, this routine returns failure to the midlayer. | |
5388 | */ | |
e17da18e | 5389 | for (i = 0; i < LPFC_MAX_TARGET; i++) { |
685f0bf7 | 5390 | /* Search for mapped node by target ID */ |
dea3101e | 5391 | match = 0; |
2e0fef85 JS |
5392 | spin_lock_irq(shost->host_lock); |
5393 | list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { | |
e47c9093 JS |
5394 | if (!NLP_CHK_NODE_ACT(ndlp)) |
5395 | continue; | |
a6571c6e JS |
5396 | if (vport->phba->cfg_fcp2_no_tgt_reset && |
5397 | (ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE)) | |
5398 | continue; | |
685f0bf7 | 5399 | if (ndlp->nlp_state == NLP_STE_MAPPED_NODE && |
915caaaf | 5400 | ndlp->nlp_sid == i && |
a0f2d3ef JS |
5401 | ndlp->rport && |
5402 | ndlp->nlp_type & NLP_FCP_TARGET) { | |
dea3101e JB |
5403 | match = 1; |
5404 | break; | |
5405 | } | |
5406 | } | |
2e0fef85 | 5407 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
5408 | if (!match) |
5409 | continue; | |
bbb9d180 | 5410 | |
eed695d7 | 5411 | status = lpfc_send_taskmgmt(vport, cmnd, |
bbb9d180 JS |
5412 | i, 0, FCP_TARGET_RESET); |
5413 | ||
5414 | if (status != SUCCESS) { | |
e8b62011 JS |
5415 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
5416 | "0700 Bus Reset on target %d failed\n", | |
5417 | i); | |
915caaaf | 5418 | ret = FAILED; |
dea3101e JB |
5419 | } |
5420 | } | |
6175c02a | 5421 | /* |
bbb9d180 JS |
5422 | * We have to clean up i/o as : they may be orphaned by the TMFs |
5423 | * above; or if any of the TMFs failed, they may be in an | |
5424 | * indeterminate state. | |
5425 | * We will report success if all the i/o aborts successfully. | |
6175c02a | 5426 | */ |
bbb9d180 JS |
5427 | |
5428 | status = lpfc_reset_flush_io_context(vport, 0, 0, LPFC_CTX_HOST); | |
5429 | if (status != SUCCESS) | |
0bd4ca25 | 5430 | ret = FAILED; |
bbb9d180 | 5431 | |
e8b62011 JS |
5432 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
5433 | "0714 SCSI layer issued Bus Reset Data: x%x\n", ret); | |
dea3101e JB |
5434 | return ret; |
5435 | } | |
5436 | ||
27b01b82 JS |
5437 | /** |
5438 | * lpfc_host_reset_handler - scsi_host_template eh_host_reset_handler entry pt | |
5439 | * @cmnd: Pointer to scsi_cmnd data structure. | |
5440 | * | |
5441 | * This routine does host reset to the adaptor port. It brings the HBA | |
5442 | * offline, performs a board restart, and then brings the board back online. | |
5443 | * The lpfc_offline calls lpfc_sli_hba_down which will abort and local | |
5444 | * reject all outstanding SCSI commands to the host and error returned | |
5445 | * back to SCSI mid-level. As this will be SCSI mid-level's last resort | |
5446 | * of error handling, it will only return error if resetting of the adapter | |
5447 | * is not successful; in all other cases, will return success. | |
5448 | * | |
5449 | * Return code : | |
5450 | * 0x2003 - Error | |
5451 | * 0x2002 - Success | |
5452 | **/ | |
5453 | static int | |
5454 | lpfc_host_reset_handler(struct scsi_cmnd *cmnd) | |
5455 | { | |
5456 | struct Scsi_Host *shost = cmnd->device->host; | |
5457 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
5458 | struct lpfc_hba *phba = vport->phba; | |
5459 | int rc, ret = SUCCESS; | |
5460 | ||
a88dbb6a JS |
5461 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
5462 | "3172 SCSI layer issued Host Reset Data:\n"); | |
5463 | ||
618a5230 | 5464 | lpfc_offline_prep(phba, LPFC_MBX_WAIT); |
27b01b82 JS |
5465 | lpfc_offline(phba); |
5466 | rc = lpfc_sli_brdrestart(phba); | |
5467 | if (rc) | |
8c24a4f6 JS |
5468 | goto error; |
5469 | ||
a88dbb6a JS |
5470 | rc = lpfc_online(phba); |
5471 | if (rc) | |
8c24a4f6 JS |
5472 | goto error; |
5473 | ||
27b01b82 JS |
5474 | lpfc_unblock_mgmt_io(phba); |
5475 | ||
27b01b82 | 5476 | return ret; |
8c24a4f6 JS |
5477 | error: |
5478 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
5479 | "3323 Failed host reset\n"); | |
5480 | lpfc_unblock_mgmt_io(phba); | |
5481 | return FAILED; | |
27b01b82 JS |
5482 | } |
5483 | ||
9bad7671 | 5484 | /** |
3621a710 | 5485 | * lpfc_slave_alloc - scsi_host_template slave_alloc entry point |
9bad7671 JS |
5486 | * @sdev: Pointer to scsi_device. |
5487 | * | |
5488 | * This routine populates the cmds_per_lun count + 2 scsi_bufs into this host's | |
5489 | * globally available list of scsi buffers. This routine also makes sure scsi | |
5490 | * buffer is not allocated more than HBA limit conveyed to midlayer. This list | |
5491 | * of scsi buffer exists for the lifetime of the driver. | |
5492 | * | |
5493 | * Return codes: | |
5494 | * non-0 - Error | |
5495 | * 0 - Success | |
5496 | **/ | |
dea3101e JB |
5497 | static int |
5498 | lpfc_slave_alloc(struct scsi_device *sdev) | |
5499 | { | |
2e0fef85 JS |
5500 | struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; |
5501 | struct lpfc_hba *phba = vport->phba; | |
19a7b4ae | 5502 | struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); |
3772a991 | 5503 | uint32_t total = 0; |
dea3101e | 5504 | uint32_t num_to_alloc = 0; |
3772a991 | 5505 | int num_allocated = 0; |
d7c47992 | 5506 | uint32_t sdev_cnt; |
1ba981fd JS |
5507 | struct lpfc_device_data *device_data; |
5508 | unsigned long flags; | |
5509 | struct lpfc_name target_wwpn; | |
dea3101e | 5510 | |
19a7b4ae | 5511 | if (!rport || fc_remote_port_chkready(rport)) |
dea3101e JB |
5512 | return -ENXIO; |
5513 | ||
f38fa0bb | 5514 | if (phba->cfg_fof) { |
1ba981fd JS |
5515 | |
5516 | /* | |
5517 | * Check to see if the device data structure for the lun | |
5518 | * exists. If not, create one. | |
5519 | */ | |
5520 | ||
5521 | u64_to_wwn(rport->port_name, target_wwpn.u.wwn); | |
5522 | spin_lock_irqsave(&phba->devicelock, flags); | |
5523 | device_data = __lpfc_get_device_data(phba, | |
5524 | &phba->luns, | |
5525 | &vport->fc_portname, | |
5526 | &target_wwpn, | |
5527 | sdev->lun); | |
5528 | if (!device_data) { | |
5529 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5530 | device_data = lpfc_create_device_data(phba, | |
5531 | &vport->fc_portname, | |
5532 | &target_wwpn, | |
b5749fe1 JS |
5533 | sdev->lun, |
5534 | phba->cfg_XLanePriority, | |
5535 | true); | |
1ba981fd JS |
5536 | if (!device_data) |
5537 | return -ENOMEM; | |
5538 | spin_lock_irqsave(&phba->devicelock, flags); | |
5539 | list_add_tail(&device_data->listentry, &phba->luns); | |
5540 | } | |
5541 | device_data->rport_data = rport->dd_data; | |
5542 | device_data->available = true; | |
5543 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5544 | sdev->hostdata = device_data; | |
5545 | } else { | |
5546 | sdev->hostdata = rport->dd_data; | |
5547 | } | |
d7c47992 | 5548 | sdev_cnt = atomic_inc_return(&phba->sdev_cnt); |
dea3101e | 5549 | |
0794d601 JS |
5550 | /* For SLI4, all IO buffers are pre-allocated */ |
5551 | if (phba->sli_rev == LPFC_SLI_REV4) | |
5552 | return 0; | |
5553 | ||
5554 | /* This code path is now ONLY for SLI3 adapters */ | |
5555 | ||
dea3101e JB |
5556 | /* |
5557 | * Populate the cmds_per_lun count scsi_bufs into this host's globally | |
5558 | * available list of scsi buffers. Don't allocate more than the | |
a784efbf JSEC |
5559 | * HBA limit conveyed to the midlayer via the host structure. The |
5560 | * formula accounts for the lun_queue_depth + error handlers + 1 | |
5561 | * extra. This list of scsi bufs exists for the lifetime of the driver. | |
dea3101e JB |
5562 | */ |
5563 | total = phba->total_scsi_bufs; | |
3de2a653 | 5564 | num_to_alloc = vport->cfg_lun_queue_depth + 2; |
92d7f7b0 | 5565 | |
d7c47992 JS |
5566 | /* If allocated buffers are enough do nothing */ |
5567 | if ((sdev_cnt * (vport->cfg_lun_queue_depth + 2)) < total) | |
5568 | return 0; | |
5569 | ||
92d7f7b0 JS |
5570 | /* Allow some exchanges to be available always to complete discovery */ |
5571 | if (total >= phba->cfg_hba_queue_depth - LPFC_DISC_IOCB_BUFF_COUNT ) { | |
e8b62011 JS |
5572 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
5573 | "0704 At limitation of %d preallocated " | |
5574 | "command buffers\n", total); | |
dea3101e | 5575 | return 0; |
92d7f7b0 JS |
5576 | /* Allow some exchanges to be available always to complete discovery */ |
5577 | } else if (total + num_to_alloc > | |
5578 | phba->cfg_hba_queue_depth - LPFC_DISC_IOCB_BUFF_COUNT ) { | |
e8b62011 JS |
5579 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
5580 | "0705 Allocation request of %d " | |
5581 | "command buffers will exceed max of %d. " | |
5582 | "Reducing allocation request to %d.\n", | |
5583 | num_to_alloc, phba->cfg_hba_queue_depth, | |
5584 | (phba->cfg_hba_queue_depth - total)); | |
dea3101e JB |
5585 | num_to_alloc = phba->cfg_hba_queue_depth - total; |
5586 | } | |
0794d601 | 5587 | num_allocated = lpfc_new_scsi_buf_s3(vport, num_to_alloc); |
3772a991 | 5588 | if (num_to_alloc != num_allocated) { |
96f7077f JS |
5589 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
5590 | "0708 Allocation request of %d " | |
5591 | "command buffers did not succeed. " | |
5592 | "Allocated %d buffers.\n", | |
5593 | num_to_alloc, num_allocated); | |
dea3101e | 5594 | } |
1c6f4ef5 JS |
5595 | if (num_allocated > 0) |
5596 | phba->total_scsi_bufs += num_allocated; | |
dea3101e JB |
5597 | return 0; |
5598 | } | |
5599 | ||
9bad7671 | 5600 | /** |
3621a710 | 5601 | * lpfc_slave_configure - scsi_host_template slave_configure entry point |
9bad7671 JS |
5602 | * @sdev: Pointer to scsi_device. |
5603 | * | |
5604 | * This routine configures following items | |
5605 | * - Tag command queuing support for @sdev if supported. | |
9bad7671 JS |
5606 | * - Enable SLI polling for fcp ring if ENABLE_FCP_RING_POLLING flag is set. |
5607 | * | |
5608 | * Return codes: | |
5609 | * 0 - Success | |
5610 | **/ | |
dea3101e JB |
5611 | static int |
5612 | lpfc_slave_configure(struct scsi_device *sdev) | |
5613 | { | |
2e0fef85 JS |
5614 | struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; |
5615 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 5616 | |
db5ed4df | 5617 | scsi_change_queue_depth(sdev, vport->cfg_lun_queue_depth); |
dea3101e | 5618 | |
875fbdfe | 5619 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { |
45ed1190 | 5620 | lpfc_sli_handle_fast_ring_event(phba, |
895427bd | 5621 | &phba->sli.sli3_ring[LPFC_FCP_RING], HA_R0RE_REQ); |
875fbdfe JSEC |
5622 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
5623 | lpfc_poll_rearm_timer(phba); | |
5624 | } | |
5625 | ||
dea3101e JB |
5626 | return 0; |
5627 | } | |
5628 | ||
9bad7671 | 5629 | /** |
3621a710 | 5630 | * lpfc_slave_destroy - slave_destroy entry point of SHT data structure |
9bad7671 JS |
5631 | * @sdev: Pointer to scsi_device. |
5632 | * | |
5633 | * This routine sets @sdev hostatdata filed to null. | |
5634 | **/ | |
dea3101e JB |
5635 | static void |
5636 | lpfc_slave_destroy(struct scsi_device *sdev) | |
5637 | { | |
d7c47992 JS |
5638 | struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; |
5639 | struct lpfc_hba *phba = vport->phba; | |
1ba981fd JS |
5640 | unsigned long flags; |
5641 | struct lpfc_device_data *device_data = sdev->hostdata; | |
5642 | ||
d7c47992 | 5643 | atomic_dec(&phba->sdev_cnt); |
f38fa0bb | 5644 | if ((phba->cfg_fof) && (device_data)) { |
1ba981fd JS |
5645 | spin_lock_irqsave(&phba->devicelock, flags); |
5646 | device_data->available = false; | |
5647 | if (!device_data->oas_enabled) | |
5648 | lpfc_delete_device_data(phba, device_data); | |
5649 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5650 | } | |
dea3101e JB |
5651 | sdev->hostdata = NULL; |
5652 | return; | |
5653 | } | |
5654 | ||
1ba981fd JS |
5655 | /** |
5656 | * lpfc_create_device_data - creates and initializes device data structure for OAS | |
5657 | * @pha: Pointer to host bus adapter structure. | |
5658 | * @vport_wwpn: Pointer to vport's wwpn information | |
5659 | * @target_wwpn: Pointer to target's wwpn information | |
5660 | * @lun: Lun on target | |
5661 | * @atomic_create: Flag to indicate if memory should be allocated using the | |
5662 | * GFP_ATOMIC flag or not. | |
5663 | * | |
5664 | * This routine creates a device data structure which will contain identifying | |
5665 | * information for the device (host wwpn, target wwpn, lun), state of OAS, | |
5666 | * whether or not the corresponding lun is available by the system, | |
5667 | * and pointer to the rport data. | |
5668 | * | |
5669 | * Return codes: | |
5670 | * NULL - Error | |
5671 | * Pointer to lpfc_device_data - Success | |
5672 | **/ | |
5673 | struct lpfc_device_data* | |
5674 | lpfc_create_device_data(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn, | |
5675 | struct lpfc_name *target_wwpn, uint64_t lun, | |
b5749fe1 | 5676 | uint32_t pri, bool atomic_create) |
1ba981fd JS |
5677 | { |
5678 | ||
5679 | struct lpfc_device_data *lun_info; | |
5680 | int memory_flags; | |
5681 | ||
5682 | if (unlikely(!phba) || !vport_wwpn || !target_wwpn || | |
f38fa0bb | 5683 | !(phba->cfg_fof)) |
1ba981fd JS |
5684 | return NULL; |
5685 | ||
5686 | /* Attempt to create the device data to contain lun info */ | |
5687 | ||
5688 | if (atomic_create) | |
5689 | memory_flags = GFP_ATOMIC; | |
5690 | else | |
5691 | memory_flags = GFP_KERNEL; | |
5692 | lun_info = mempool_alloc(phba->device_data_mem_pool, memory_flags); | |
5693 | if (!lun_info) | |
5694 | return NULL; | |
5695 | INIT_LIST_HEAD(&lun_info->listentry); | |
5696 | lun_info->rport_data = NULL; | |
5697 | memcpy(&lun_info->device_id.vport_wwpn, vport_wwpn, | |
5698 | sizeof(struct lpfc_name)); | |
5699 | memcpy(&lun_info->device_id.target_wwpn, target_wwpn, | |
5700 | sizeof(struct lpfc_name)); | |
5701 | lun_info->device_id.lun = lun; | |
5702 | lun_info->oas_enabled = false; | |
b5749fe1 | 5703 | lun_info->priority = pri; |
1ba981fd JS |
5704 | lun_info->available = false; |
5705 | return lun_info; | |
5706 | } | |
5707 | ||
5708 | /** | |
5709 | * lpfc_delete_device_data - frees a device data structure for OAS | |
5710 | * @pha: Pointer to host bus adapter structure. | |
5711 | * @lun_info: Pointer to device data structure to free. | |
5712 | * | |
5713 | * This routine frees the previously allocated device data structure passed. | |
5714 | * | |
5715 | **/ | |
5716 | void | |
5717 | lpfc_delete_device_data(struct lpfc_hba *phba, | |
5718 | struct lpfc_device_data *lun_info) | |
5719 | { | |
5720 | ||
5721 | if (unlikely(!phba) || !lun_info || | |
f38fa0bb | 5722 | !(phba->cfg_fof)) |
1ba981fd JS |
5723 | return; |
5724 | ||
5725 | if (!list_empty(&lun_info->listentry)) | |
5726 | list_del(&lun_info->listentry); | |
5727 | mempool_free(lun_info, phba->device_data_mem_pool); | |
5728 | return; | |
5729 | } | |
5730 | ||
5731 | /** | |
5732 | * __lpfc_get_device_data - returns the device data for the specified lun | |
5733 | * @pha: Pointer to host bus adapter structure. | |
5734 | * @list: Point to list to search. | |
5735 | * @vport_wwpn: Pointer to vport's wwpn information | |
5736 | * @target_wwpn: Pointer to target's wwpn information | |
5737 | * @lun: Lun on target | |
5738 | * | |
5739 | * This routine searches the list passed for the specified lun's device data. | |
5740 | * This function does not hold locks, it is the responsibility of the caller | |
5741 | * to ensure the proper lock is held before calling the function. | |
5742 | * | |
5743 | * Return codes: | |
5744 | * NULL - Error | |
5745 | * Pointer to lpfc_device_data - Success | |
5746 | **/ | |
5747 | struct lpfc_device_data* | |
5748 | __lpfc_get_device_data(struct lpfc_hba *phba, struct list_head *list, | |
5749 | struct lpfc_name *vport_wwpn, | |
5750 | struct lpfc_name *target_wwpn, uint64_t lun) | |
5751 | { | |
5752 | ||
5753 | struct lpfc_device_data *lun_info; | |
5754 | ||
5755 | if (unlikely(!phba) || !list || !vport_wwpn || !target_wwpn || | |
f38fa0bb | 5756 | !phba->cfg_fof) |
1ba981fd JS |
5757 | return NULL; |
5758 | ||
5759 | /* Check to see if the lun is already enabled for OAS. */ | |
5760 | ||
5761 | list_for_each_entry(lun_info, list, listentry) { | |
5762 | if ((memcmp(&lun_info->device_id.vport_wwpn, vport_wwpn, | |
5763 | sizeof(struct lpfc_name)) == 0) && | |
5764 | (memcmp(&lun_info->device_id.target_wwpn, target_wwpn, | |
5765 | sizeof(struct lpfc_name)) == 0) && | |
5766 | (lun_info->device_id.lun == lun)) | |
5767 | return lun_info; | |
5768 | } | |
5769 | ||
5770 | return NULL; | |
5771 | } | |
5772 | ||
5773 | /** | |
5774 | * lpfc_find_next_oas_lun - searches for the next oas lun | |
5775 | * @pha: Pointer to host bus adapter structure. | |
5776 | * @vport_wwpn: Pointer to vport's wwpn information | |
5777 | * @target_wwpn: Pointer to target's wwpn information | |
5778 | * @starting_lun: Pointer to the lun to start searching for | |
5779 | * @found_vport_wwpn: Pointer to the found lun's vport wwpn information | |
5780 | * @found_target_wwpn: Pointer to the found lun's target wwpn information | |
5781 | * @found_lun: Pointer to the found lun. | |
5782 | * @found_lun_status: Pointer to status of the found lun. | |
5783 | * | |
5784 | * This routine searches the luns list for the specified lun | |
5785 | * or the first lun for the vport/target. If the vport wwpn contains | |
5786 | * a zero value then a specific vport is not specified. In this case | |
5787 | * any vport which contains the lun will be considered a match. If the | |
5788 | * target wwpn contains a zero value then a specific target is not specified. | |
5789 | * In this case any target which contains the lun will be considered a | |
5790 | * match. If the lun is found, the lun, vport wwpn, target wwpn and lun status | |
5791 | * are returned. The function will also return the next lun if available. | |
5792 | * If the next lun is not found, starting_lun parameter will be set to | |
5793 | * NO_MORE_OAS_LUN. | |
5794 | * | |
5795 | * Return codes: | |
5796 | * non-0 - Error | |
5797 | * 0 - Success | |
5798 | **/ | |
5799 | bool | |
5800 | lpfc_find_next_oas_lun(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn, | |
5801 | struct lpfc_name *target_wwpn, uint64_t *starting_lun, | |
5802 | struct lpfc_name *found_vport_wwpn, | |
5803 | struct lpfc_name *found_target_wwpn, | |
5804 | uint64_t *found_lun, | |
b5749fe1 JS |
5805 | uint32_t *found_lun_status, |
5806 | uint32_t *found_lun_pri) | |
1ba981fd JS |
5807 | { |
5808 | ||
5809 | unsigned long flags; | |
5810 | struct lpfc_device_data *lun_info; | |
5811 | struct lpfc_device_id *device_id; | |
5812 | uint64_t lun; | |
5813 | bool found = false; | |
5814 | ||
5815 | if (unlikely(!phba) || !vport_wwpn || !target_wwpn || | |
5816 | !starting_lun || !found_vport_wwpn || | |
5817 | !found_target_wwpn || !found_lun || !found_lun_status || | |
5818 | (*starting_lun == NO_MORE_OAS_LUN) || | |
f38fa0bb | 5819 | !phba->cfg_fof) |
1ba981fd JS |
5820 | return false; |
5821 | ||
5822 | lun = *starting_lun; | |
5823 | *found_lun = NO_MORE_OAS_LUN; | |
5824 | *starting_lun = NO_MORE_OAS_LUN; | |
5825 | ||
5826 | /* Search for lun or the lun closet in value */ | |
5827 | ||
5828 | spin_lock_irqsave(&phba->devicelock, flags); | |
5829 | list_for_each_entry(lun_info, &phba->luns, listentry) { | |
5830 | if (((wwn_to_u64(vport_wwpn->u.wwn) == 0) || | |
5831 | (memcmp(&lun_info->device_id.vport_wwpn, vport_wwpn, | |
5832 | sizeof(struct lpfc_name)) == 0)) && | |
5833 | ((wwn_to_u64(target_wwpn->u.wwn) == 0) || | |
5834 | (memcmp(&lun_info->device_id.target_wwpn, target_wwpn, | |
5835 | sizeof(struct lpfc_name)) == 0)) && | |
5836 | (lun_info->oas_enabled)) { | |
5837 | device_id = &lun_info->device_id; | |
5838 | if ((!found) && | |
5839 | ((lun == FIND_FIRST_OAS_LUN) || | |
5840 | (device_id->lun == lun))) { | |
5841 | *found_lun = device_id->lun; | |
5842 | memcpy(found_vport_wwpn, | |
5843 | &device_id->vport_wwpn, | |
5844 | sizeof(struct lpfc_name)); | |
5845 | memcpy(found_target_wwpn, | |
5846 | &device_id->target_wwpn, | |
5847 | sizeof(struct lpfc_name)); | |
5848 | if (lun_info->available) | |
5849 | *found_lun_status = | |
5850 | OAS_LUN_STATUS_EXISTS; | |
5851 | else | |
5852 | *found_lun_status = 0; | |
b5749fe1 | 5853 | *found_lun_pri = lun_info->priority; |
1ba981fd JS |
5854 | if (phba->cfg_oas_flags & OAS_FIND_ANY_VPORT) |
5855 | memset(vport_wwpn, 0x0, | |
5856 | sizeof(struct lpfc_name)); | |
5857 | if (phba->cfg_oas_flags & OAS_FIND_ANY_TARGET) | |
5858 | memset(target_wwpn, 0x0, | |
5859 | sizeof(struct lpfc_name)); | |
5860 | found = true; | |
5861 | } else if (found) { | |
5862 | *starting_lun = device_id->lun; | |
5863 | memcpy(vport_wwpn, &device_id->vport_wwpn, | |
5864 | sizeof(struct lpfc_name)); | |
5865 | memcpy(target_wwpn, &device_id->target_wwpn, | |
5866 | sizeof(struct lpfc_name)); | |
5867 | break; | |
5868 | } | |
5869 | } | |
5870 | } | |
5871 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5872 | return found; | |
5873 | } | |
5874 | ||
5875 | /** | |
5876 | * lpfc_enable_oas_lun - enables a lun for OAS operations | |
5877 | * @pha: Pointer to host bus adapter structure. | |
5878 | * @vport_wwpn: Pointer to vport's wwpn information | |
5879 | * @target_wwpn: Pointer to target's wwpn information | |
5880 | * @lun: Lun | |
5881 | * | |
5882 | * This routine enables a lun for oas operations. The routines does so by | |
5883 | * doing the following : | |
5884 | * | |
5885 | * 1) Checks to see if the device data for the lun has been created. | |
5886 | * 2) If found, sets the OAS enabled flag if not set and returns. | |
5887 | * 3) Otherwise, creates a device data structure. | |
5888 | * 4) If successfully created, indicates the device data is for an OAS lun, | |
5889 | * indicates the lun is not available and add to the list of luns. | |
5890 | * | |
5891 | * Return codes: | |
5892 | * false - Error | |
5893 | * true - Success | |
5894 | **/ | |
5895 | bool | |
5896 | lpfc_enable_oas_lun(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn, | |
c92c841c | 5897 | struct lpfc_name *target_wwpn, uint64_t lun, uint8_t pri) |
1ba981fd JS |
5898 | { |
5899 | ||
5900 | struct lpfc_device_data *lun_info; | |
5901 | unsigned long flags; | |
5902 | ||
5903 | if (unlikely(!phba) || !vport_wwpn || !target_wwpn || | |
f38fa0bb | 5904 | !phba->cfg_fof) |
1ba981fd JS |
5905 | return false; |
5906 | ||
5907 | spin_lock_irqsave(&phba->devicelock, flags); | |
5908 | ||
5909 | /* Check to see if the device data for the lun has been created */ | |
5910 | lun_info = __lpfc_get_device_data(phba, &phba->luns, vport_wwpn, | |
5911 | target_wwpn, lun); | |
5912 | if (lun_info) { | |
5913 | if (!lun_info->oas_enabled) | |
5914 | lun_info->oas_enabled = true; | |
b5749fe1 | 5915 | lun_info->priority = pri; |
1ba981fd JS |
5916 | spin_unlock_irqrestore(&phba->devicelock, flags); |
5917 | return true; | |
5918 | } | |
5919 | ||
5920 | /* Create an lun info structure and add to list of luns */ | |
5921 | lun_info = lpfc_create_device_data(phba, vport_wwpn, target_wwpn, lun, | |
2d71dc8e | 5922 | pri, true); |
1ba981fd JS |
5923 | if (lun_info) { |
5924 | lun_info->oas_enabled = true; | |
c92c841c | 5925 | lun_info->priority = pri; |
1ba981fd JS |
5926 | lun_info->available = false; |
5927 | list_add_tail(&lun_info->listentry, &phba->luns); | |
5928 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5929 | return true; | |
5930 | } | |
5931 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5932 | return false; | |
5933 | } | |
5934 | ||
5935 | /** | |
5936 | * lpfc_disable_oas_lun - disables a lun for OAS operations | |
5937 | * @pha: Pointer to host bus adapter structure. | |
5938 | * @vport_wwpn: Pointer to vport's wwpn information | |
5939 | * @target_wwpn: Pointer to target's wwpn information | |
5940 | * @lun: Lun | |
5941 | * | |
5942 | * This routine disables a lun for oas operations. The routines does so by | |
5943 | * doing the following : | |
5944 | * | |
5945 | * 1) Checks to see if the device data for the lun is created. | |
5946 | * 2) If present, clears the flag indicating this lun is for OAS. | |
5947 | * 3) If the lun is not available by the system, the device data is | |
5948 | * freed. | |
5949 | * | |
5950 | * Return codes: | |
5951 | * false - Error | |
5952 | * true - Success | |
5953 | **/ | |
5954 | bool | |
5955 | lpfc_disable_oas_lun(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn, | |
b5749fe1 | 5956 | struct lpfc_name *target_wwpn, uint64_t lun, uint8_t pri) |
1ba981fd JS |
5957 | { |
5958 | ||
5959 | struct lpfc_device_data *lun_info; | |
5960 | unsigned long flags; | |
5961 | ||
5962 | if (unlikely(!phba) || !vport_wwpn || !target_wwpn || | |
f38fa0bb | 5963 | !phba->cfg_fof) |
1ba981fd JS |
5964 | return false; |
5965 | ||
5966 | spin_lock_irqsave(&phba->devicelock, flags); | |
5967 | ||
5968 | /* Check to see if the lun is available. */ | |
5969 | lun_info = __lpfc_get_device_data(phba, | |
5970 | &phba->luns, vport_wwpn, | |
5971 | target_wwpn, lun); | |
5972 | if (lun_info) { | |
5973 | lun_info->oas_enabled = false; | |
b5749fe1 | 5974 | lun_info->priority = pri; |
1ba981fd JS |
5975 | if (!lun_info->available) |
5976 | lpfc_delete_device_data(phba, lun_info); | |
5977 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5978 | return true; | |
5979 | } | |
5980 | ||
5981 | spin_unlock_irqrestore(&phba->devicelock, flags); | |
5982 | return false; | |
5983 | } | |
92d7f7b0 | 5984 | |
895427bd JS |
5985 | static int |
5986 | lpfc_no_command(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) | |
5987 | { | |
5988 | return SCSI_MLQUEUE_HOST_BUSY; | |
5989 | } | |
5990 | ||
5991 | static int | |
5992 | lpfc_no_handler(struct scsi_cmnd *cmnd) | |
5993 | { | |
5994 | return FAILED; | |
5995 | } | |
5996 | ||
5997 | static int | |
5998 | lpfc_no_slave(struct scsi_device *sdev) | |
5999 | { | |
6000 | return -ENODEV; | |
6001 | } | |
6002 | ||
6003 | struct scsi_host_template lpfc_template_nvme = { | |
6004 | .module = THIS_MODULE, | |
6005 | .name = LPFC_DRIVER_NAME, | |
6006 | .proc_name = LPFC_DRIVER_NAME, | |
6007 | .info = lpfc_info, | |
6008 | .queuecommand = lpfc_no_command, | |
6009 | .eh_abort_handler = lpfc_no_handler, | |
6010 | .eh_device_reset_handler = lpfc_no_handler, | |
6011 | .eh_target_reset_handler = lpfc_no_handler, | |
6012 | .eh_bus_reset_handler = lpfc_no_handler, | |
6013 | .eh_host_reset_handler = lpfc_no_handler, | |
6014 | .slave_alloc = lpfc_no_slave, | |
6015 | .slave_configure = lpfc_no_slave, | |
6016 | .scan_finished = lpfc_scan_finished, | |
6017 | .this_id = -1, | |
6018 | .sg_tablesize = 1, | |
6019 | .cmd_per_lun = 1, | |
895427bd JS |
6020 | .shost_attrs = lpfc_hba_attrs, |
6021 | .max_sectors = 0xFFFF, | |
6022 | .vendor_id = LPFC_NL_VENDOR_ID, | |
6023 | .track_queue_depth = 0, | |
6024 | }; | |
6025 | ||
96418b5e | 6026 | struct scsi_host_template lpfc_template_no_hr = { |
ea4142f6 JS |
6027 | .module = THIS_MODULE, |
6028 | .name = LPFC_DRIVER_NAME, | |
08dcd4cf | 6029 | .proc_name = LPFC_DRIVER_NAME, |
ea4142f6 JS |
6030 | .info = lpfc_info, |
6031 | .queuecommand = lpfc_queuecommand, | |
856984b7 | 6032 | .eh_timed_out = fc_eh_timed_out, |
ea4142f6 JS |
6033 | .eh_abort_handler = lpfc_abort_handler, |
6034 | .eh_device_reset_handler = lpfc_device_reset_handler, | |
6035 | .eh_target_reset_handler = lpfc_target_reset_handler, | |
6036 | .eh_bus_reset_handler = lpfc_bus_reset_handler, | |
6037 | .slave_alloc = lpfc_slave_alloc, | |
6038 | .slave_configure = lpfc_slave_configure, | |
6039 | .slave_destroy = lpfc_slave_destroy, | |
6040 | .scan_finished = lpfc_scan_finished, | |
6041 | .this_id = -1, | |
6042 | .sg_tablesize = LPFC_DEFAULT_SG_SEG_CNT, | |
6043 | .cmd_per_lun = LPFC_CMD_PER_LUN, | |
ea4142f6 | 6044 | .shost_attrs = lpfc_hba_attrs, |
d79c9e9d | 6045 | .max_sectors = 0xFFFFFFFF, |
ea4142f6 JS |
6046 | .vendor_id = LPFC_NL_VENDOR_ID, |
6047 | .change_queue_depth = scsi_change_queue_depth, | |
ea4142f6 JS |
6048 | .track_queue_depth = 1, |
6049 | }; | |
6050 | ||
dea3101e JB |
6051 | struct scsi_host_template lpfc_template = { |
6052 | .module = THIS_MODULE, | |
6053 | .name = LPFC_DRIVER_NAME, | |
08dcd4cf | 6054 | .proc_name = LPFC_DRIVER_NAME, |
dea3101e JB |
6055 | .info = lpfc_info, |
6056 | .queuecommand = lpfc_queuecommand, | |
b6a05c82 | 6057 | .eh_timed_out = fc_eh_timed_out, |
dea3101e | 6058 | .eh_abort_handler = lpfc_abort_handler, |
bbb9d180 JS |
6059 | .eh_device_reset_handler = lpfc_device_reset_handler, |
6060 | .eh_target_reset_handler = lpfc_target_reset_handler, | |
7054a606 | 6061 | .eh_bus_reset_handler = lpfc_bus_reset_handler, |
27b01b82 | 6062 | .eh_host_reset_handler = lpfc_host_reset_handler, |
dea3101e JB |
6063 | .slave_alloc = lpfc_slave_alloc, |
6064 | .slave_configure = lpfc_slave_configure, | |
6065 | .slave_destroy = lpfc_slave_destroy, | |
47a8617c | 6066 | .scan_finished = lpfc_scan_finished, |
dea3101e | 6067 | .this_id = -1, |
83108bd3 | 6068 | .sg_tablesize = LPFC_DEFAULT_SG_SEG_CNT, |
dea3101e | 6069 | .cmd_per_lun = LPFC_CMD_PER_LUN, |
2e0fef85 | 6070 | .shost_attrs = lpfc_hba_attrs, |
564b2960 | 6071 | .max_sectors = 0xFFFF, |
f1c3b0fc | 6072 | .vendor_id = LPFC_NL_VENDOR_ID, |
db5ed4df | 6073 | .change_queue_depth = scsi_change_queue_depth, |
c40ecc12 | 6074 | .track_queue_depth = 1, |
dea3101e | 6075 | }; |
3de2a653 JS |
6076 | |
6077 | struct scsi_host_template lpfc_vport_template = { | |
6078 | .module = THIS_MODULE, | |
6079 | .name = LPFC_DRIVER_NAME, | |
08dcd4cf | 6080 | .proc_name = LPFC_DRIVER_NAME, |
3de2a653 JS |
6081 | .info = lpfc_info, |
6082 | .queuecommand = lpfc_queuecommand, | |
b6a05c82 | 6083 | .eh_timed_out = fc_eh_timed_out, |
3de2a653 | 6084 | .eh_abort_handler = lpfc_abort_handler, |
bbb9d180 JS |
6085 | .eh_device_reset_handler = lpfc_device_reset_handler, |
6086 | .eh_target_reset_handler = lpfc_target_reset_handler, | |
3de2a653 JS |
6087 | .slave_alloc = lpfc_slave_alloc, |
6088 | .slave_configure = lpfc_slave_configure, | |
6089 | .slave_destroy = lpfc_slave_destroy, | |
6090 | .scan_finished = lpfc_scan_finished, | |
6091 | .this_id = -1, | |
83108bd3 | 6092 | .sg_tablesize = LPFC_DEFAULT_SG_SEG_CNT, |
3de2a653 | 6093 | .cmd_per_lun = LPFC_CMD_PER_LUN, |
3de2a653 JS |
6094 | .shost_attrs = lpfc_vport_attrs, |
6095 | .max_sectors = 0xFFFF, | |
db5ed4df | 6096 | .change_queue_depth = scsi_change_queue_depth, |
c40ecc12 | 6097 | .track_queue_depth = 1, |
3de2a653 | 6098 | }; |