dbf9bfe6 |
1 | /* |
2 | * PMC-Sierra SPC 8001 SAS/SATA based host adapters driver |
3 | * |
4 | * Copyright (c) 2008-2009 USI Co., Ltd. |
5 | * All rights reserved. |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
8 | * modification, are permitted provided that the following conditions |
9 | * are met: |
10 | * 1. Redistributions of source code must retain the above copyright |
11 | * notice, this list of conditions, and the following disclaimer, |
12 | * without modification. |
13 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
14 | * substantially similar to the "NO WARRANTY" disclaimer below |
15 | * ("Disclaimer") and any redistribution must be conditioned upon |
16 | * including a substantially similar Disclaimer requirement for further |
17 | * binary redistribution. |
18 | * 3. Neither the names of the above-listed copyright holders nor the names |
19 | * of any contributors may be used to endorse or promote products derived |
20 | * from this software without specific prior written permission. |
21 | * |
22 | * Alternatively, this software may be distributed under the terms of the |
23 | * GNU General Public License ("GPL") version 2 as published by the Free |
24 | * Software Foundation. |
25 | * |
26 | * NO WARRANTY |
27 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
28 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
29 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
30 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
31 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
32 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
33 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
34 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
35 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
36 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
37 | * POSSIBILITY OF SUCH DAMAGES. |
38 | * |
39 | */ |
40 | |
5a0e3ad6 |
41 | #include <linux/slab.h> |
dbf9bfe6 |
42 | #include "pm8001_sas.h" |
43 | |
44 | /** |
45 | * pm8001_find_tag - from sas task to find out tag that belongs to this task |
46 | * @task: the task sent to the LLDD |
47 | * @tag: the found tag associated with the task |
48 | */ |
49 | static int pm8001_find_tag(struct sas_task *task, u32 *tag) |
50 | { |
51 | if (task->lldd_task) { |
52 | struct pm8001_ccb_info *ccb; |
53 | ccb = task->lldd_task; |
54 | *tag = ccb->ccb_tag; |
55 | return 1; |
56 | } |
57 | return 0; |
58 | } |
59 | |
60 | /** |
61 | * pm8001_tag_clear - clear the tags bitmap |
62 | * @pm8001_ha: our hba struct |
63 | * @tag: the found tag associated with the task |
64 | */ |
65 | static void pm8001_tag_clear(struct pm8001_hba_info *pm8001_ha, u32 tag) |
66 | { |
67 | void *bitmap = pm8001_ha->tags; |
68 | clear_bit(tag, bitmap); |
69 | } |
70 | |
71 | static void pm8001_tag_free(struct pm8001_hba_info *pm8001_ha, u32 tag) |
72 | { |
73 | pm8001_tag_clear(pm8001_ha, tag); |
74 | } |
75 | |
76 | static void pm8001_tag_set(struct pm8001_hba_info *pm8001_ha, u32 tag) |
77 | { |
78 | void *bitmap = pm8001_ha->tags; |
79 | set_bit(tag, bitmap); |
80 | } |
81 | |
82 | /** |
83 | * pm8001_tag_alloc - allocate a empty tag for task used. |
84 | * @pm8001_ha: our hba struct |
85 | * @tag_out: the found empty tag . |
86 | */ |
87 | inline int pm8001_tag_alloc(struct pm8001_hba_info *pm8001_ha, u32 *tag_out) |
88 | { |
89 | unsigned int index, tag; |
90 | void *bitmap = pm8001_ha->tags; |
91 | |
92 | index = find_first_zero_bit(bitmap, pm8001_ha->tags_num); |
93 | tag = index; |
94 | if (tag >= pm8001_ha->tags_num) |
95 | return -SAS_QUEUE_FULL; |
96 | pm8001_tag_set(pm8001_ha, tag); |
97 | *tag_out = tag; |
98 | return 0; |
99 | } |
100 | |
101 | void pm8001_tag_init(struct pm8001_hba_info *pm8001_ha) |
102 | { |
103 | int i; |
104 | for (i = 0; i < pm8001_ha->tags_num; ++i) |
105 | pm8001_tag_clear(pm8001_ha, i); |
106 | } |
107 | |
108 | /** |
109 | * pm8001_mem_alloc - allocate memory for pm8001. |
110 | * @pdev: pci device. |
111 | * @virt_addr: the allocated virtual address |
112 | * @pphys_addr_hi: the physical address high byte address. |
113 | * @pphys_addr_lo: the physical address low byte address. |
114 | * @mem_size: memory size. |
115 | */ |
116 | int pm8001_mem_alloc(struct pci_dev *pdev, void **virt_addr, |
117 | dma_addr_t *pphys_addr, u32 *pphys_addr_hi, |
118 | u32 *pphys_addr_lo, u32 mem_size, u32 align) |
119 | { |
120 | caddr_t mem_virt_alloc; |
121 | dma_addr_t mem_dma_handle; |
122 | u64 phys_align; |
123 | u64 align_offset = 0; |
124 | if (align) |
125 | align_offset = (dma_addr_t)align - 1; |
126 | mem_virt_alloc = |
127 | pci_alloc_consistent(pdev, mem_size + align, &mem_dma_handle); |
128 | if (!mem_virt_alloc) { |
129 | pm8001_printk("memory allocation error\n"); |
130 | return -1; |
131 | } |
132 | memset((void *)mem_virt_alloc, 0, mem_size+align); |
133 | *pphys_addr = mem_dma_handle; |
134 | phys_align = (*pphys_addr + align_offset) & ~align_offset; |
135 | *virt_addr = (void *)mem_virt_alloc + phys_align - *pphys_addr; |
136 | *pphys_addr_hi = upper_32_bits(phys_align); |
137 | *pphys_addr_lo = lower_32_bits(phys_align); |
138 | return 0; |
139 | } |
140 | /** |
141 | * pm8001_find_ha_by_dev - from domain device which come from sas layer to |
142 | * find out our hba struct. |
143 | * @dev: the domain device which from sas layer. |
144 | */ |
145 | static |
146 | struct pm8001_hba_info *pm8001_find_ha_by_dev(struct domain_device *dev) |
147 | { |
148 | struct sas_ha_struct *sha = dev->port->ha; |
149 | struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; |
150 | return pm8001_ha; |
151 | } |
152 | |
153 | /** |
154 | * pm8001_phy_control - this function should be registered to |
155 | * sas_domain_function_template to provide libsas used, note: this is just |
156 | * control the HBA phy rather than other expander phy if you want control |
157 | * other phy, you should use SMP command. |
158 | * @sas_phy: which phy in HBA phys. |
159 | * @func: the operation. |
160 | * @funcdata: always NULL. |
161 | */ |
162 | int pm8001_phy_control(struct asd_sas_phy *sas_phy, enum phy_func func, |
163 | void *funcdata) |
164 | { |
165 | int rc = 0, phy_id = sas_phy->id; |
166 | struct pm8001_hba_info *pm8001_ha = NULL; |
167 | struct sas_phy_linkrates *rates; |
168 | DECLARE_COMPLETION_ONSTACK(completion); |
169 | pm8001_ha = sas_phy->ha->lldd_ha; |
170 | pm8001_ha->phy[phy_id].enable_completion = &completion; |
171 | switch (func) { |
172 | case PHY_FUNC_SET_LINK_RATE: |
173 | rates = funcdata; |
174 | if (rates->minimum_linkrate) { |
175 | pm8001_ha->phy[phy_id].minimum_linkrate = |
176 | rates->minimum_linkrate; |
177 | } |
178 | if (rates->maximum_linkrate) { |
179 | pm8001_ha->phy[phy_id].maximum_linkrate = |
180 | rates->maximum_linkrate; |
181 | } |
182 | if (pm8001_ha->phy[phy_id].phy_state == 0) { |
183 | PM8001_CHIP_DISP->phy_start_req(pm8001_ha, phy_id); |
184 | wait_for_completion(&completion); |
185 | } |
186 | PM8001_CHIP_DISP->phy_ctl_req(pm8001_ha, phy_id, |
187 | PHY_LINK_RESET); |
188 | break; |
189 | case PHY_FUNC_HARD_RESET: |
190 | if (pm8001_ha->phy[phy_id].phy_state == 0) { |
191 | PM8001_CHIP_DISP->phy_start_req(pm8001_ha, phy_id); |
192 | wait_for_completion(&completion); |
193 | } |
194 | PM8001_CHIP_DISP->phy_ctl_req(pm8001_ha, phy_id, |
195 | PHY_HARD_RESET); |
196 | break; |
197 | case PHY_FUNC_LINK_RESET: |
198 | if (pm8001_ha->phy[phy_id].phy_state == 0) { |
199 | PM8001_CHIP_DISP->phy_start_req(pm8001_ha, phy_id); |
200 | wait_for_completion(&completion); |
201 | } |
202 | PM8001_CHIP_DISP->phy_ctl_req(pm8001_ha, phy_id, |
203 | PHY_LINK_RESET); |
204 | break; |
205 | case PHY_FUNC_RELEASE_SPINUP_HOLD: |
206 | PM8001_CHIP_DISP->phy_ctl_req(pm8001_ha, phy_id, |
207 | PHY_LINK_RESET); |
208 | break; |
209 | case PHY_FUNC_DISABLE: |
210 | PM8001_CHIP_DISP->phy_stop_req(pm8001_ha, phy_id); |
211 | break; |
212 | default: |
213 | rc = -EOPNOTSUPP; |
214 | } |
215 | msleep(300); |
216 | return rc; |
217 | } |
218 | |
219 | int pm8001_slave_alloc(struct scsi_device *scsi_dev) |
220 | { |
221 | struct domain_device *dev = sdev_to_domain_dev(scsi_dev); |
222 | if (dev_is_sata(dev)) { |
223 | /* We don't need to rescan targets |
224 | * if REPORT_LUNS request is failed |
225 | */ |
226 | if (scsi_dev->lun > 0) |
227 | return -ENXIO; |
228 | scsi_dev->tagged_supported = 1; |
229 | } |
230 | return sas_slave_alloc(scsi_dev); |
231 | } |
232 | |
233 | /** |
234 | * pm8001_scan_start - we should enable all HBA phys by sending the phy_start |
235 | * command to HBA. |
236 | * @shost: the scsi host data. |
237 | */ |
238 | void pm8001_scan_start(struct Scsi_Host *shost) |
239 | { |
240 | int i; |
241 | struct pm8001_hba_info *pm8001_ha; |
242 | struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); |
243 | pm8001_ha = sha->lldd_ha; |
d0b68041 |
244 | PM8001_CHIP_DISP->sas_re_init_req(pm8001_ha); |
dbf9bfe6 |
245 | for (i = 0; i < pm8001_ha->chip->n_phy; ++i) |
246 | PM8001_CHIP_DISP->phy_start_req(pm8001_ha, i); |
247 | } |
248 | |
249 | int pm8001_scan_finished(struct Scsi_Host *shost, unsigned long time) |
250 | { |
251 | /* give the phy enabling interrupt event time to come in (1s |
252 | * is empirically about all it takes) */ |
253 | if (time < HZ) |
254 | return 0; |
255 | /* Wait for discovery to finish */ |
256 | scsi_flush_work(shost); |
257 | return 1; |
258 | } |
259 | |
260 | /** |
261 | * pm8001_task_prep_smp - the dispatcher function, prepare data for smp task |
262 | * @pm8001_ha: our hba card information |
263 | * @ccb: the ccb which attached to smp task |
264 | */ |
265 | static int pm8001_task_prep_smp(struct pm8001_hba_info *pm8001_ha, |
266 | struct pm8001_ccb_info *ccb) |
267 | { |
268 | return PM8001_CHIP_DISP->smp_req(pm8001_ha, ccb); |
269 | } |
270 | |
271 | u32 pm8001_get_ncq_tag(struct sas_task *task, u32 *tag) |
272 | { |
273 | struct ata_queued_cmd *qc = task->uldd_task; |
274 | if (qc) { |
275 | if (qc->tf.command == ATA_CMD_FPDMA_WRITE || |
276 | qc->tf.command == ATA_CMD_FPDMA_READ) { |
277 | *tag = qc->tag; |
278 | return 1; |
279 | } |
280 | } |
281 | return 0; |
282 | } |
283 | |
284 | /** |
285 | * pm8001_task_prep_ata - the dispatcher function, prepare data for sata task |
286 | * @pm8001_ha: our hba card information |
287 | * @ccb: the ccb which attached to sata task |
288 | */ |
289 | static int pm8001_task_prep_ata(struct pm8001_hba_info *pm8001_ha, |
290 | struct pm8001_ccb_info *ccb) |
291 | { |
292 | return PM8001_CHIP_DISP->sata_req(pm8001_ha, ccb); |
293 | } |
294 | |
295 | /** |
296 | * pm8001_task_prep_ssp_tm - the dispatcher function, prepare task management data |
297 | * @pm8001_ha: our hba card information |
298 | * @ccb: the ccb which attached to TM |
299 | * @tmf: the task management IU |
300 | */ |
301 | static int pm8001_task_prep_ssp_tm(struct pm8001_hba_info *pm8001_ha, |
302 | struct pm8001_ccb_info *ccb, struct pm8001_tmf_task *tmf) |
303 | { |
304 | return PM8001_CHIP_DISP->ssp_tm_req(pm8001_ha, ccb, tmf); |
305 | } |
306 | |
307 | /** |
308 | * pm8001_task_prep_ssp - the dispatcher function,prepare ssp data for ssp task |
309 | * @pm8001_ha: our hba card information |
310 | * @ccb: the ccb which attached to ssp task |
311 | */ |
312 | static int pm8001_task_prep_ssp(struct pm8001_hba_info *pm8001_ha, |
313 | struct pm8001_ccb_info *ccb) |
314 | { |
315 | return PM8001_CHIP_DISP->ssp_io_req(pm8001_ha, ccb); |
316 | } |
317 | int pm8001_slave_configure(struct scsi_device *sdev) |
318 | { |
319 | struct domain_device *dev = sdev_to_domain_dev(sdev); |
320 | int ret = sas_slave_configure(sdev); |
321 | if (ret) |
322 | return ret; |
323 | if (dev_is_sata(dev)) { |
324 | #ifdef PM8001_DISABLE_NCQ |
325 | struct ata_port *ap = dev->sata_dev.ap; |
326 | struct ata_device *adev = ap->link.device; |
327 | adev->flags |= ATA_DFLAG_NCQ_OFF; |
328 | scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, 1); |
329 | #endif |
330 | } |
331 | return 0; |
332 | } |
1cc943ae |
333 | /* Find the local port id that's attached to this device */ |
334 | static int sas_find_local_port_id(struct domain_device *dev) |
335 | { |
336 | struct domain_device *pdev = dev->parent; |
337 | |
338 | /* Directly attached device */ |
339 | if (!pdev) |
340 | return dev->port->id; |
341 | while (pdev) { |
342 | struct domain_device *pdev_p = pdev->parent; |
343 | if (!pdev_p) |
344 | return pdev->port->id; |
345 | pdev = pdev->parent; |
346 | } |
347 | return 0; |
348 | } |
349 | |
dbf9bfe6 |
350 | /** |
97ee2088 |
351 | * pm8001_task_exec - queue the task(ssp, smp && ata) to the hardware. |
dbf9bfe6 |
352 | * @task: the task to be execute. |
353 | * @num: if can_queue great than 1, the task can be queued up. for SMP task, |
354 | * we always execute one one time. |
355 | * @gfp_flags: gfp_flags. |
97ee2088 |
356 | * @is_tmf: if it is task management task. |
dbf9bfe6 |
357 | * @tmf: the task management IU |
358 | */ |
359 | #define DEV_IS_GONE(pm8001_dev) \ |
360 | ((!pm8001_dev || (pm8001_dev->dev_type == NO_DEVICE))) |
361 | static int pm8001_task_exec(struct sas_task *task, const int num, |
362 | gfp_t gfp_flags, int is_tmf, struct pm8001_tmf_task *tmf) |
363 | { |
364 | struct domain_device *dev = task->dev; |
365 | struct pm8001_hba_info *pm8001_ha; |
366 | struct pm8001_device *pm8001_dev; |
1cc943ae |
367 | struct pm8001_port *port = NULL; |
dbf9bfe6 |
368 | struct sas_task *t = task; |
369 | struct pm8001_ccb_info *ccb; |
370 | u32 tag = 0xdeadbeef, rc, n_elem = 0; |
371 | u32 n = num; |
1cc943ae |
372 | unsigned long flags = 0, flags_libsas = 0; |
dbf9bfe6 |
373 | |
374 | if (!dev->port) { |
375 | struct task_status_struct *tsm = &t->task_status; |
376 | tsm->resp = SAS_TASK_UNDELIVERED; |
377 | tsm->stat = SAS_PHY_DOWN; |
378 | if (dev->dev_type != SATA_DEV) |
379 | t->task_done(t); |
380 | return 0; |
381 | } |
382 | pm8001_ha = pm8001_find_ha_by_dev(task->dev); |
383 | PM8001_IO_DBG(pm8001_ha, pm8001_printk("pm8001_task_exec device \n ")); |
384 | spin_lock_irqsave(&pm8001_ha->lock, flags); |
385 | do { |
386 | dev = t->dev; |
387 | pm8001_dev = dev->lldd_dev; |
388 | if (DEV_IS_GONE(pm8001_dev)) { |
389 | if (pm8001_dev) { |
390 | PM8001_IO_DBG(pm8001_ha, |
391 | pm8001_printk("device %d not ready.\n", |
392 | pm8001_dev->device_id)); |
393 | } else { |
394 | PM8001_IO_DBG(pm8001_ha, |
395 | pm8001_printk("device %016llx not " |
396 | "ready.\n", SAS_ADDR(dev->sas_addr))); |
397 | } |
97ee2088 |
398 | rc = SAS_PHY_DOWN; |
dbf9bfe6 |
399 | goto out_done; |
400 | } |
1cc943ae |
401 | port = &pm8001_ha->port[sas_find_local_port_id(dev)]; |
402 | if (!port->port_attached) { |
403 | if (sas_protocol_ata(t->task_proto)) { |
404 | struct task_status_struct *ts = &t->task_status; |
405 | ts->resp = SAS_TASK_UNDELIVERED; |
406 | ts->stat = SAS_PHY_DOWN; |
407 | |
408 | spin_unlock_irqrestore(&pm8001_ha->lock, flags); |
409 | spin_unlock_irqrestore(dev->sata_dev.ap->lock, |
410 | flags_libsas); |
411 | t->task_done(t); |
412 | spin_lock_irqsave(dev->sata_dev.ap->lock, |
413 | flags_libsas); |
414 | spin_lock_irqsave(&pm8001_ha->lock, flags); |
415 | if (n > 1) |
416 | t = list_entry(t->list.next, |
417 | struct sas_task, list); |
418 | continue; |
419 | } else { |
420 | struct task_status_struct *ts = &t->task_status; |
421 | ts->resp = SAS_TASK_UNDELIVERED; |
422 | ts->stat = SAS_PHY_DOWN; |
423 | t->task_done(t); |
424 | if (n > 1) |
425 | t = list_entry(t->list.next, |
426 | struct sas_task, list); |
427 | continue; |
428 | } |
429 | } |
dbf9bfe6 |
430 | rc = pm8001_tag_alloc(pm8001_ha, &tag); |
431 | if (rc) |
432 | goto err_out; |
433 | ccb = &pm8001_ha->ccb_info[tag]; |
434 | |
435 | if (!sas_protocol_ata(t->task_proto)) { |
436 | if (t->num_scatter) { |
437 | n_elem = dma_map_sg(pm8001_ha->dev, |
438 | t->scatter, |
439 | t->num_scatter, |
440 | t->data_dir); |
441 | if (!n_elem) { |
442 | rc = -ENOMEM; |
97ee2088 |
443 | goto err_out_tag; |
dbf9bfe6 |
444 | } |
445 | } |
446 | } else { |
447 | n_elem = t->num_scatter; |
448 | } |
449 | |
97ee2088 |
450 | t->lldd_task = ccb; |
dbf9bfe6 |
451 | ccb->n_elem = n_elem; |
452 | ccb->ccb_tag = tag; |
453 | ccb->task = t; |
454 | switch (t->task_proto) { |
455 | case SAS_PROTOCOL_SMP: |
456 | rc = pm8001_task_prep_smp(pm8001_ha, ccb); |
457 | break; |
458 | case SAS_PROTOCOL_SSP: |
459 | if (is_tmf) |
460 | rc = pm8001_task_prep_ssp_tm(pm8001_ha, |
461 | ccb, tmf); |
462 | else |
463 | rc = pm8001_task_prep_ssp(pm8001_ha, ccb); |
464 | break; |
465 | case SAS_PROTOCOL_SATA: |
466 | case SAS_PROTOCOL_STP: |
467 | case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: |
468 | rc = pm8001_task_prep_ata(pm8001_ha, ccb); |
469 | break; |
470 | default: |
471 | dev_printk(KERN_ERR, pm8001_ha->dev, |
472 | "unknown sas_task proto: 0x%x\n", |
473 | t->task_proto); |
474 | rc = -EINVAL; |
475 | break; |
476 | } |
477 | |
478 | if (rc) { |
479 | PM8001_IO_DBG(pm8001_ha, |
480 | pm8001_printk("rc is %x\n", rc)); |
481 | goto err_out_tag; |
482 | } |
dbf9bfe6 |
483 | /* TODO: select normal or high priority */ |
484 | spin_lock(&t->task_state_lock); |
485 | t->task_state_flags |= SAS_TASK_AT_INITIATOR; |
486 | spin_unlock(&t->task_state_lock); |
487 | pm8001_dev->running_req++; |
488 | if (n > 1) |
489 | t = list_entry(t->list.next, struct sas_task, list); |
490 | } while (--n); |
491 | rc = 0; |
492 | goto out_done; |
493 | |
494 | err_out_tag: |
495 | pm8001_tag_free(pm8001_ha, tag); |
496 | err_out: |
497 | dev_printk(KERN_ERR, pm8001_ha->dev, "pm8001 exec failed[%d]!\n", rc); |
498 | if (!sas_protocol_ata(t->task_proto)) |
499 | if (n_elem) |
500 | dma_unmap_sg(pm8001_ha->dev, t->scatter, n_elem, |
501 | t->data_dir); |
502 | out_done: |
503 | spin_unlock_irqrestore(&pm8001_ha->lock, flags); |
504 | return rc; |
505 | } |
506 | |
507 | /** |
508 | * pm8001_queue_command - register for upper layer used, all IO commands sent |
509 | * to HBA are from this interface. |
510 | * @task: the task to be execute. |
511 | * @num: if can_queue great than 1, the task can be queued up. for SMP task, |
512 | * we always execute one one time |
513 | * @gfp_flags: gfp_flags |
514 | */ |
515 | int pm8001_queue_command(struct sas_task *task, const int num, |
516 | gfp_t gfp_flags) |
517 | { |
518 | return pm8001_task_exec(task, num, gfp_flags, 0, NULL); |
519 | } |
520 | |
521 | void pm8001_ccb_free(struct pm8001_hba_info *pm8001_ha, u32 ccb_idx) |
522 | { |
523 | pm8001_tag_clear(pm8001_ha, ccb_idx); |
524 | } |
525 | |
526 | /** |
527 | * pm8001_ccb_task_free - free the sg for ssp and smp command, free the ccb. |
528 | * @pm8001_ha: our hba card information |
529 | * @ccb: the ccb which attached to ssp task |
530 | * @task: the task to be free. |
531 | * @ccb_idx: ccb index. |
532 | */ |
533 | void pm8001_ccb_task_free(struct pm8001_hba_info *pm8001_ha, |
534 | struct sas_task *task, struct pm8001_ccb_info *ccb, u32 ccb_idx) |
535 | { |
536 | if (!ccb->task) |
537 | return; |
538 | if (!sas_protocol_ata(task->task_proto)) |
539 | if (ccb->n_elem) |
540 | dma_unmap_sg(pm8001_ha->dev, task->scatter, |
541 | task->num_scatter, task->data_dir); |
542 | |
543 | switch (task->task_proto) { |
544 | case SAS_PROTOCOL_SMP: |
545 | dma_unmap_sg(pm8001_ha->dev, &task->smp_task.smp_resp, 1, |
546 | PCI_DMA_FROMDEVICE); |
547 | dma_unmap_sg(pm8001_ha->dev, &task->smp_task.smp_req, 1, |
548 | PCI_DMA_TODEVICE); |
549 | break; |
550 | |
551 | case SAS_PROTOCOL_SATA: |
552 | case SAS_PROTOCOL_STP: |
553 | case SAS_PROTOCOL_SSP: |
554 | default: |
555 | /* do nothing */ |
556 | break; |
557 | } |
558 | task->lldd_task = NULL; |
559 | ccb->task = NULL; |
560 | ccb->ccb_tag = 0xFFFFFFFF; |
561 | pm8001_ccb_free(pm8001_ha, ccb_idx); |
562 | } |
563 | |
564 | /** |
97ee2088 |
565 | * pm8001_alloc_dev - find a empty pm8001_device |
dbf9bfe6 |
566 | * @pm8001_ha: our hba card information |
567 | */ |
568 | struct pm8001_device *pm8001_alloc_dev(struct pm8001_hba_info *pm8001_ha) |
569 | { |
570 | u32 dev; |
571 | for (dev = 0; dev < PM8001_MAX_DEVICES; dev++) { |
572 | if (pm8001_ha->devices[dev].dev_type == NO_DEVICE) { |
573 | pm8001_ha->devices[dev].id = dev; |
574 | return &pm8001_ha->devices[dev]; |
575 | } |
576 | } |
577 | if (dev == PM8001_MAX_DEVICES) { |
578 | PM8001_FAIL_DBG(pm8001_ha, |
579 | pm8001_printk("max support %d devices, ignore ..\n", |
580 | PM8001_MAX_DEVICES)); |
581 | } |
582 | return NULL; |
583 | } |
584 | |
585 | static void pm8001_free_dev(struct pm8001_device *pm8001_dev) |
586 | { |
587 | u32 id = pm8001_dev->id; |
588 | memset(pm8001_dev, 0, sizeof(*pm8001_dev)); |
589 | pm8001_dev->id = id; |
590 | pm8001_dev->dev_type = NO_DEVICE; |
591 | pm8001_dev->device_id = PM8001_MAX_DEVICES; |
592 | pm8001_dev->sas_device = NULL; |
593 | } |
594 | |
595 | /** |
97ee2088 |
596 | * pm8001_dev_found_notify - libsas notify a device is found. |
597 | * @dev: the device structure which sas layer used. |
598 | * |
599 | * when libsas find a sas domain device, it should tell the LLDD that |
600 | * device is found, and then LLDD register this device to HBA firmware |
601 | * by the command "OPC_INB_REG_DEV", after that the HBA will assign a |
602 | * device ID(according to device's sas address) and returned it to LLDD. From |
dbf9bfe6 |
603 | * now on, we communicate with HBA FW with the device ID which HBA assigned |
3ad2f3fb |
604 | * rather than sas address. it is the necessary step for our HBA but it is |
dbf9bfe6 |
605 | * the optional for other HBA driver. |
dbf9bfe6 |
606 | */ |
607 | static int pm8001_dev_found_notify(struct domain_device *dev) |
608 | { |
609 | unsigned long flags = 0; |
610 | int res = 0; |
611 | struct pm8001_hba_info *pm8001_ha = NULL; |
612 | struct domain_device *parent_dev = dev->parent; |
613 | struct pm8001_device *pm8001_device; |
614 | DECLARE_COMPLETION_ONSTACK(completion); |
615 | u32 flag = 0; |
616 | pm8001_ha = pm8001_find_ha_by_dev(dev); |
617 | spin_lock_irqsave(&pm8001_ha->lock, flags); |
618 | |
619 | pm8001_device = pm8001_alloc_dev(pm8001_ha); |
dbf9bfe6 |
620 | if (!pm8001_device) { |
621 | res = -1; |
622 | goto found_out; |
623 | } |
f01f4e6a |
624 | pm8001_device->sas_device = dev; |
dbf9bfe6 |
625 | dev->lldd_dev = pm8001_device; |
626 | pm8001_device->dev_type = dev->dev_type; |
627 | pm8001_device->dcompletion = &completion; |
628 | if (parent_dev && DEV_IS_EXPANDER(parent_dev->dev_type)) { |
629 | int phy_id; |
630 | struct ex_phy *phy; |
631 | for (phy_id = 0; phy_id < parent_dev->ex_dev.num_phys; |
632 | phy_id++) { |
633 | phy = &parent_dev->ex_dev.ex_phy[phy_id]; |
634 | if (SAS_ADDR(phy->attached_sas_addr) |
635 | == SAS_ADDR(dev->sas_addr)) { |
636 | pm8001_device->attached_phy = phy_id; |
637 | break; |
638 | } |
639 | } |
640 | if (phy_id == parent_dev->ex_dev.num_phys) { |
641 | PM8001_FAIL_DBG(pm8001_ha, |
642 | pm8001_printk("Error: no attached dev:%016llx" |
643 | " at ex:%016llx.\n", SAS_ADDR(dev->sas_addr), |
644 | SAS_ADDR(parent_dev->sas_addr))); |
645 | res = -1; |
646 | } |
647 | } else { |
648 | if (dev->dev_type == SATA_DEV) { |
649 | pm8001_device->attached_phy = |
650 | dev->rphy->identify.phy_identifier; |
651 | flag = 1; /* directly sata*/ |
652 | } |
653 | } /*register this device to HBA*/ |
654 | PM8001_DISC_DBG(pm8001_ha, pm8001_printk("Found device \n")); |
655 | PM8001_CHIP_DISP->reg_dev_req(pm8001_ha, pm8001_device, flag); |
656 | spin_unlock_irqrestore(&pm8001_ha->lock, flags); |
657 | wait_for_completion(&completion); |
658 | if (dev->dev_type == SAS_END_DEV) |
659 | msleep(50); |
a61b8699 |
660 | pm8001_ha->flags |= PM8001F_RUN_TIME ; |
dbf9bfe6 |
661 | return 0; |
662 | found_out: |
663 | spin_unlock_irqrestore(&pm8001_ha->lock, flags); |
664 | return res; |
665 | } |
666 | |
667 | int pm8001_dev_found(struct domain_device *dev) |
668 | { |
669 | return pm8001_dev_found_notify(dev); |
670 | } |
671 | |
672 | /** |
673 | * pm8001_alloc_task - allocate a task structure for TMF |
674 | */ |
675 | static struct sas_task *pm8001_alloc_task(void) |
676 | { |
677 | struct sas_task *task = kzalloc(sizeof(*task), GFP_KERNEL); |
678 | if (task) { |
679 | INIT_LIST_HEAD(&task->list); |
680 | spin_lock_init(&task->task_state_lock); |
681 | task->task_state_flags = SAS_TASK_STATE_PENDING; |
682 | init_timer(&task->timer); |
683 | init_completion(&task->completion); |
684 | } |
685 | return task; |
686 | } |
687 | |
688 | static void pm8001_free_task(struct sas_task *task) |
689 | { |
690 | if (task) { |
691 | BUG_ON(!list_empty(&task->list)); |
692 | kfree(task); |
693 | } |
694 | } |
695 | |
696 | static void pm8001_task_done(struct sas_task *task) |
697 | { |
698 | if (!del_timer(&task->timer)) |
699 | return; |
700 | complete(&task->completion); |
701 | } |
702 | |
703 | static void pm8001_tmf_timedout(unsigned long data) |
704 | { |
705 | struct sas_task *task = (struct sas_task *)data; |
706 | |
707 | task->task_state_flags |= SAS_TASK_STATE_ABORTED; |
708 | complete(&task->completion); |
709 | } |
710 | |
711 | #define PM8001_TASK_TIMEOUT 20 |
712 | /** |
97ee2088 |
713 | * pm8001_exec_internal_tmf_task - execute some task management commands. |
dbf9bfe6 |
714 | * @dev: the wanted device. |
715 | * @tmf: which task management wanted to be take. |
716 | * @para_len: para_len. |
717 | * @parameter: ssp task parameter. |
97ee2088 |
718 | * |
719 | * when errors or exception happened, we may want to do something, for example |
720 | * abort the issued task which result in this execption, it is done by calling |
721 | * this function, note it is also with the task execute interface. |
dbf9bfe6 |
722 | */ |
723 | static int pm8001_exec_internal_tmf_task(struct domain_device *dev, |
724 | void *parameter, u32 para_len, struct pm8001_tmf_task *tmf) |
725 | { |
726 | int res, retry; |
727 | struct sas_task *task = NULL; |
728 | struct pm8001_hba_info *pm8001_ha = pm8001_find_ha_by_dev(dev); |
729 | |
730 | for (retry = 0; retry < 3; retry++) { |
731 | task = pm8001_alloc_task(); |
732 | if (!task) |
733 | return -ENOMEM; |
734 | |
735 | task->dev = dev; |
736 | task->task_proto = dev->tproto; |
737 | memcpy(&task->ssp_task, parameter, para_len); |
738 | task->task_done = pm8001_task_done; |
739 | task->timer.data = (unsigned long)task; |
740 | task->timer.function = pm8001_tmf_timedout; |
741 | task->timer.expires = jiffies + PM8001_TASK_TIMEOUT*HZ; |
742 | add_timer(&task->timer); |
743 | |
744 | res = pm8001_task_exec(task, 1, GFP_KERNEL, 1, tmf); |
745 | |
746 | if (res) { |
747 | del_timer(&task->timer); |
748 | PM8001_FAIL_DBG(pm8001_ha, |
749 | pm8001_printk("Executing internal task " |
750 | "failed\n")); |
751 | goto ex_err; |
752 | } |
753 | wait_for_completion(&task->completion); |
754 | res = -TMF_RESP_FUNC_FAILED; |
755 | /* Even TMF timed out, return direct. */ |
756 | if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) { |
757 | if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) { |
758 | PM8001_FAIL_DBG(pm8001_ha, |
759 | pm8001_printk("TMF task[%x]timeout.\n", |
760 | tmf->tmf)); |
761 | goto ex_err; |
762 | } |
763 | } |
764 | |
765 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
766 | task->task_status.stat == SAM_GOOD) { |
767 | res = TMF_RESP_FUNC_COMPLETE; |
768 | break; |
769 | } |
770 | |
771 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
772 | task->task_status.stat == SAS_DATA_UNDERRUN) { |
773 | /* no error, but return the number of bytes of |
774 | * underrun */ |
775 | res = task->task_status.residual; |
776 | break; |
777 | } |
778 | |
779 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
780 | task->task_status.stat == SAS_DATA_OVERRUN) { |
781 | PM8001_FAIL_DBG(pm8001_ha, |
782 | pm8001_printk("Blocked task error.\n")); |
783 | res = -EMSGSIZE; |
784 | break; |
785 | } else { |
97ee2088 |
786 | PM8001_EH_DBG(pm8001_ha, |
787 | pm8001_printk(" Task to dev %016llx response:" |
788 | "0x%x status 0x%x\n", |
dbf9bfe6 |
789 | SAS_ADDR(dev->sas_addr), |
790 | task->task_status.resp, |
791 | task->task_status.stat)); |
792 | pm8001_free_task(task); |
793 | task = NULL; |
794 | } |
795 | } |
796 | ex_err: |
797 | BUG_ON(retry == 3 && task != NULL); |
798 | if (task != NULL) |
799 | pm8001_free_task(task); |
800 | return res; |
801 | } |
802 | |
803 | static int |
804 | pm8001_exec_internal_task_abort(struct pm8001_hba_info *pm8001_ha, |
805 | struct pm8001_device *pm8001_dev, struct domain_device *dev, u32 flag, |
806 | u32 task_tag) |
807 | { |
808 | int res, retry; |
97ee2088 |
809 | u32 ccb_tag; |
dbf9bfe6 |
810 | struct pm8001_ccb_info *ccb; |
811 | struct sas_task *task = NULL; |
812 | |
813 | for (retry = 0; retry < 3; retry++) { |
814 | task = pm8001_alloc_task(); |
815 | if (!task) |
816 | return -ENOMEM; |
817 | |
818 | task->dev = dev; |
819 | task->task_proto = dev->tproto; |
820 | task->task_done = pm8001_task_done; |
821 | task->timer.data = (unsigned long)task; |
822 | task->timer.function = pm8001_tmf_timedout; |
83e73329 |
823 | task->timer.expires = jiffies + PM8001_TASK_TIMEOUT * HZ; |
dbf9bfe6 |
824 | add_timer(&task->timer); |
825 | |
97ee2088 |
826 | res = pm8001_tag_alloc(pm8001_ha, &ccb_tag); |
827 | if (res) |
828 | return res; |
dbf9bfe6 |
829 | ccb = &pm8001_ha->ccb_info[ccb_tag]; |
830 | ccb->device = pm8001_dev; |
831 | ccb->ccb_tag = ccb_tag; |
832 | ccb->task = task; |
833 | |
834 | res = PM8001_CHIP_DISP->task_abort(pm8001_ha, |
835 | pm8001_dev, flag, task_tag, ccb_tag); |
836 | |
837 | if (res) { |
838 | del_timer(&task->timer); |
839 | PM8001_FAIL_DBG(pm8001_ha, |
840 | pm8001_printk("Executing internal task " |
841 | "failed\n")); |
842 | goto ex_err; |
843 | } |
844 | wait_for_completion(&task->completion); |
845 | res = TMF_RESP_FUNC_FAILED; |
846 | /* Even TMF timed out, return direct. */ |
847 | if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) { |
848 | if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) { |
849 | PM8001_FAIL_DBG(pm8001_ha, |
850 | pm8001_printk("TMF task timeout.\n")); |
851 | goto ex_err; |
852 | } |
853 | } |
854 | |
855 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
856 | task->task_status.stat == SAM_GOOD) { |
857 | res = TMF_RESP_FUNC_COMPLETE; |
858 | break; |
859 | |
860 | } else { |
97ee2088 |
861 | PM8001_EH_DBG(pm8001_ha, |
dbf9bfe6 |
862 | pm8001_printk(" Task to dev %016llx response: " |
863 | "0x%x status 0x%x\n", |
864 | SAS_ADDR(dev->sas_addr), |
865 | task->task_status.resp, |
866 | task->task_status.stat)); |
867 | pm8001_free_task(task); |
868 | task = NULL; |
869 | } |
870 | } |
871 | ex_err: |
872 | BUG_ON(retry == 3 && task != NULL); |
873 | if (task != NULL) |
874 | pm8001_free_task(task); |
875 | return res; |
876 | } |
877 | |
878 | /** |
879 | * pm8001_dev_gone_notify - see the comments for "pm8001_dev_found_notify" |
880 | * @dev: the device structure which sas layer used. |
881 | */ |
882 | static void pm8001_dev_gone_notify(struct domain_device *dev) |
883 | { |
884 | unsigned long flags = 0; |
885 | u32 tag; |
886 | struct pm8001_hba_info *pm8001_ha; |
887 | struct pm8001_device *pm8001_dev = dev->lldd_dev; |
888 | u32 device_id = pm8001_dev->device_id; |
889 | pm8001_ha = pm8001_find_ha_by_dev(dev); |
890 | spin_lock_irqsave(&pm8001_ha->lock, flags); |
891 | pm8001_tag_alloc(pm8001_ha, &tag); |
892 | if (pm8001_dev) { |
893 | PM8001_DISC_DBG(pm8001_ha, |
894 | pm8001_printk("found dev[%d:%x] is gone.\n", |
895 | pm8001_dev->device_id, pm8001_dev->dev_type)); |
896 | if (pm8001_dev->running_req) { |
897 | spin_unlock_irqrestore(&pm8001_ha->lock, flags); |
898 | pm8001_exec_internal_task_abort(pm8001_ha, pm8001_dev , |
899 | dev, 1, 0); |
900 | spin_lock_irqsave(&pm8001_ha->lock, flags); |
901 | } |
902 | PM8001_CHIP_DISP->dereg_dev_req(pm8001_ha, device_id); |
903 | pm8001_free_dev(pm8001_dev); |
904 | } else { |
905 | PM8001_DISC_DBG(pm8001_ha, |
906 | pm8001_printk("Found dev has gone.\n")); |
907 | } |
908 | dev->lldd_dev = NULL; |
909 | spin_unlock_irqrestore(&pm8001_ha->lock, flags); |
910 | } |
911 | |
912 | void pm8001_dev_gone(struct domain_device *dev) |
913 | { |
914 | pm8001_dev_gone_notify(dev); |
915 | } |
916 | |
917 | static int pm8001_issue_ssp_tmf(struct domain_device *dev, |
918 | u8 *lun, struct pm8001_tmf_task *tmf) |
919 | { |
920 | struct sas_ssp_task ssp_task; |
921 | if (!(dev->tproto & SAS_PROTOCOL_SSP)) |
922 | return TMF_RESP_FUNC_ESUPP; |
923 | |
924 | strncpy((u8 *)&ssp_task.LUN, lun, 8); |
925 | return pm8001_exec_internal_tmf_task(dev, &ssp_task, sizeof(ssp_task), |
926 | tmf); |
927 | } |
928 | |
929 | /** |
930 | * Standard mandates link reset for ATA (type 0) and hard reset for |
931 | * SSP (type 1) , only for RECOVERY |
932 | */ |
933 | int pm8001_I_T_nexus_reset(struct domain_device *dev) |
934 | { |
935 | int rc = TMF_RESP_FUNC_FAILED; |
936 | struct pm8001_device *pm8001_dev; |
937 | struct pm8001_hba_info *pm8001_ha; |
938 | struct sas_phy *phy; |
939 | if (!dev || !dev->lldd_dev) |
940 | return -1; |
941 | |
942 | pm8001_dev = dev->lldd_dev; |
943 | pm8001_ha = pm8001_find_ha_by_dev(dev); |
944 | phy = sas_find_local_phy(dev); |
945 | |
946 | if (dev_is_sata(dev)) { |
947 | DECLARE_COMPLETION_ONSTACK(completion_setstate); |
8257ec80 |
948 | if (scsi_is_sas_phy_local(phy)) |
949 | return 0; |
dbf9bfe6 |
950 | rc = sas_phy_reset(phy, 1); |
951 | msleep(2000); |
952 | rc = pm8001_exec_internal_task_abort(pm8001_ha, pm8001_dev , |
953 | dev, 1, 0); |
954 | pm8001_dev->setds_completion = &completion_setstate; |
955 | rc = PM8001_CHIP_DISP->set_dev_state_req(pm8001_ha, |
956 | pm8001_dev, 0x01); |
957 | wait_for_completion(&completion_setstate); |
958 | } else{ |
959 | rc = sas_phy_reset(phy, 1); |
960 | msleep(2000); |
961 | } |
962 | PM8001_EH_DBG(pm8001_ha, pm8001_printk(" for device[%x]:rc=%d\n", |
963 | pm8001_dev->device_id, rc)); |
964 | return rc; |
965 | } |
966 | |
967 | /* mandatory SAM-3, the task reset the specified LUN*/ |
968 | int pm8001_lu_reset(struct domain_device *dev, u8 *lun) |
969 | { |
970 | int rc = TMF_RESP_FUNC_FAILED; |
971 | struct pm8001_tmf_task tmf_task; |
972 | struct pm8001_device *pm8001_dev = dev->lldd_dev; |
973 | struct pm8001_hba_info *pm8001_ha = pm8001_find_ha_by_dev(dev); |
974 | if (dev_is_sata(dev)) { |
975 | struct sas_phy *phy = sas_find_local_phy(dev); |
976 | rc = pm8001_exec_internal_task_abort(pm8001_ha, pm8001_dev , |
977 | dev, 1, 0); |
978 | rc = sas_phy_reset(phy, 1); |
979 | rc = PM8001_CHIP_DISP->set_dev_state_req(pm8001_ha, |
980 | pm8001_dev, 0x01); |
981 | msleep(2000); |
982 | } else { |
983 | tmf_task.tmf = TMF_LU_RESET; |
984 | rc = pm8001_issue_ssp_tmf(dev, lun, &tmf_task); |
985 | } |
986 | /* If failed, fall-through I_T_Nexus reset */ |
987 | PM8001_EH_DBG(pm8001_ha, pm8001_printk("for device[%x]:rc=%d\n", |
988 | pm8001_dev->device_id, rc)); |
989 | return rc; |
990 | } |
991 | |
992 | /* optional SAM-3 */ |
993 | int pm8001_query_task(struct sas_task *task) |
994 | { |
995 | u32 tag = 0xdeadbeef; |
996 | int i = 0; |
997 | struct scsi_lun lun; |
998 | struct pm8001_tmf_task tmf_task; |
999 | int rc = TMF_RESP_FUNC_FAILED; |
1000 | if (unlikely(!task || !task->lldd_task || !task->dev)) |
1001 | return rc; |
1002 | |
1003 | if (task->task_proto & SAS_PROTOCOL_SSP) { |
1004 | struct scsi_cmnd *cmnd = task->uldd_task; |
1005 | struct domain_device *dev = task->dev; |
1006 | struct pm8001_hba_info *pm8001_ha = |
1007 | pm8001_find_ha_by_dev(dev); |
1008 | |
1009 | int_to_scsilun(cmnd->device->lun, &lun); |
1010 | rc = pm8001_find_tag(task, &tag); |
1011 | if (rc == 0) { |
1012 | rc = TMF_RESP_FUNC_FAILED; |
1013 | return rc; |
1014 | } |
1015 | PM8001_EH_DBG(pm8001_ha, pm8001_printk("Query:[")); |
1016 | for (i = 0; i < 16; i++) |
1017 | printk(KERN_INFO "%02x ", cmnd->cmnd[i]); |
1018 | printk(KERN_INFO "]\n"); |
1019 | tmf_task.tmf = TMF_QUERY_TASK; |
1020 | tmf_task.tag_of_task_to_be_managed = tag; |
1021 | |
1022 | rc = pm8001_issue_ssp_tmf(dev, lun.scsi_lun, &tmf_task); |
1023 | switch (rc) { |
1024 | /* The task is still in Lun, release it then */ |
1025 | case TMF_RESP_FUNC_SUCC: |
1026 | PM8001_EH_DBG(pm8001_ha, |
1027 | pm8001_printk("The task is still in Lun \n")); |
1028 | /* The task is not in Lun or failed, reset the phy */ |
1029 | case TMF_RESP_FUNC_FAILED: |
1030 | case TMF_RESP_FUNC_COMPLETE: |
1031 | PM8001_EH_DBG(pm8001_ha, |
1032 | pm8001_printk("The task is not in Lun or failed," |
1033 | " reset the phy \n")); |
1034 | break; |
1035 | } |
1036 | } |
1037 | pm8001_printk(":rc= %d\n", rc); |
1038 | return rc; |
1039 | } |
1040 | |
1041 | /* mandatory SAM-3, still need free task/ccb info, abord the specified task */ |
1042 | int pm8001_abort_task(struct sas_task *task) |
1043 | { |
1044 | unsigned long flags; |
1045 | u32 tag = 0xdeadbeef; |
1046 | u32 device_id; |
1047 | struct domain_device *dev ; |
1048 | struct pm8001_hba_info *pm8001_ha = NULL; |
1049 | struct pm8001_ccb_info *ccb; |
1050 | struct scsi_lun lun; |
1051 | struct pm8001_device *pm8001_dev; |
1052 | struct pm8001_tmf_task tmf_task; |
1053 | int rc = TMF_RESP_FUNC_FAILED; |
1054 | if (unlikely(!task || !task->lldd_task || !task->dev)) |
1055 | return rc; |
1056 | spin_lock_irqsave(&task->task_state_lock, flags); |
1057 | if (task->task_state_flags & SAS_TASK_STATE_DONE) { |
1058 | spin_unlock_irqrestore(&task->task_state_lock, flags); |
1059 | rc = TMF_RESP_FUNC_COMPLETE; |
1060 | goto out; |
1061 | } |
1062 | spin_unlock_irqrestore(&task->task_state_lock, flags); |
1063 | if (task->task_proto & SAS_PROTOCOL_SSP) { |
1064 | struct scsi_cmnd *cmnd = task->uldd_task; |
1065 | dev = task->dev; |
1066 | ccb = task->lldd_task; |
1067 | pm8001_dev = dev->lldd_dev; |
1068 | pm8001_ha = pm8001_find_ha_by_dev(dev); |
1069 | int_to_scsilun(cmnd->device->lun, &lun); |
1070 | rc = pm8001_find_tag(task, &tag); |
1071 | if (rc == 0) { |
1072 | printk(KERN_INFO "No such tag in %s\n", __func__); |
1073 | rc = TMF_RESP_FUNC_FAILED; |
1074 | return rc; |
1075 | } |
1076 | device_id = pm8001_dev->device_id; |
1077 | PM8001_EH_DBG(pm8001_ha, |
97ee2088 |
1078 | pm8001_printk("abort io to deviceid= %d\n", device_id)); |
1079 | tmf_task.tmf = TMF_ABORT_TASK; |
dbf9bfe6 |
1080 | tmf_task.tag_of_task_to_be_managed = tag; |
1081 | rc = pm8001_issue_ssp_tmf(dev, lun.scsi_lun, &tmf_task); |
97ee2088 |
1082 | pm8001_exec_internal_task_abort(pm8001_ha, pm8001_dev, |
dbf9bfe6 |
1083 | pm8001_dev->sas_device, 0, tag); |
1084 | } else if (task->task_proto & SAS_PROTOCOL_SATA || |
1085 | task->task_proto & SAS_PROTOCOL_STP) { |
1086 | dev = task->dev; |
1087 | pm8001_dev = dev->lldd_dev; |
1088 | pm8001_ha = pm8001_find_ha_by_dev(dev); |
1089 | rc = pm8001_find_tag(task, &tag); |
1090 | if (rc == 0) { |
1091 | printk(KERN_INFO "No such tag in %s\n", __func__); |
1092 | rc = TMF_RESP_FUNC_FAILED; |
1093 | return rc; |
1094 | } |
1095 | rc = pm8001_exec_internal_task_abort(pm8001_ha, pm8001_dev, |
1096 | pm8001_dev->sas_device, 0, tag); |
1097 | } else if (task->task_proto & SAS_PROTOCOL_SMP) { |
1098 | /* SMP */ |
1099 | dev = task->dev; |
1100 | pm8001_dev = dev->lldd_dev; |
1101 | pm8001_ha = pm8001_find_ha_by_dev(dev); |
1102 | rc = pm8001_find_tag(task, &tag); |
1103 | if (rc == 0) { |
1104 | printk(KERN_INFO "No such tag in %s\n", __func__); |
1105 | rc = TMF_RESP_FUNC_FAILED; |
1106 | return rc; |
1107 | } |
1108 | rc = pm8001_exec_internal_task_abort(pm8001_ha, pm8001_dev, |
1109 | pm8001_dev->sas_device, 0, tag); |
1110 | |
1111 | } |
1112 | out: |
1113 | if (rc != TMF_RESP_FUNC_COMPLETE) |
1114 | pm8001_printk("rc= %d\n", rc); |
1115 | return rc; |
1116 | } |
1117 | |
1118 | int pm8001_abort_task_set(struct domain_device *dev, u8 *lun) |
1119 | { |
1120 | int rc = TMF_RESP_FUNC_FAILED; |
1121 | struct pm8001_tmf_task tmf_task; |
1122 | |
1123 | tmf_task.tmf = TMF_ABORT_TASK_SET; |
1124 | rc = pm8001_issue_ssp_tmf(dev, lun, &tmf_task); |
1125 | return rc; |
1126 | } |
1127 | |
1128 | int pm8001_clear_aca(struct domain_device *dev, u8 *lun) |
1129 | { |
1130 | int rc = TMF_RESP_FUNC_FAILED; |
1131 | struct pm8001_tmf_task tmf_task; |
1132 | |
1133 | tmf_task.tmf = TMF_CLEAR_ACA; |
1134 | rc = pm8001_issue_ssp_tmf(dev, lun, &tmf_task); |
1135 | |
1136 | return rc; |
1137 | } |
1138 | |
1139 | int pm8001_clear_task_set(struct domain_device *dev, u8 *lun) |
1140 | { |
1141 | int rc = TMF_RESP_FUNC_FAILED; |
1142 | struct pm8001_tmf_task tmf_task; |
1143 | struct pm8001_device *pm8001_dev = dev->lldd_dev; |
1144 | struct pm8001_hba_info *pm8001_ha = pm8001_find_ha_by_dev(dev); |
1145 | |
1146 | PM8001_EH_DBG(pm8001_ha, |
1147 | pm8001_printk("I_T_L_Q clear task set[%x]\n", |
1148 | pm8001_dev->device_id)); |
1149 | tmf_task.tmf = TMF_CLEAR_TASK_SET; |
1150 | rc = pm8001_issue_ssp_tmf(dev, lun, &tmf_task); |
1151 | return rc; |
1152 | } |
1153 | |