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Merge branch 'parisc-3.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller...
[deliverable/linux.git] / drivers / scsi / mvsas / mv_init.c
1 /*
2 * Marvell 88SE64xx/88SE94xx pci init
3 *
4 * Copyright 2007 Red Hat, Inc.
5 * Copyright 2008 Marvell. <kewei@marvell.com>
6 * Copyright 2009-2011 Marvell. <yuxiangl@marvell.com>
7 *
8 * This file is licensed under GPLv2.
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; version 2 of the
13 * License.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
23 * USA
24 */
25
26
27 #include "mv_sas.h"
28
29 int interrupt_coalescing = 0x80;
30
31 static struct scsi_transport_template *mvs_stt;
32 static const struct mvs_chip_info mvs_chips[] = {
33 [chip_6320] = { 1, 2, 0x400, 17, 16, 6, 9, &mvs_64xx_dispatch, },
34 [chip_6440] = { 1, 4, 0x400, 17, 16, 6, 9, &mvs_64xx_dispatch, },
35 [chip_6485] = { 1, 8, 0x800, 33, 32, 6, 10, &mvs_64xx_dispatch, },
36 [chip_9180] = { 2, 4, 0x800, 17, 64, 8, 9, &mvs_94xx_dispatch, },
37 [chip_9480] = { 2, 4, 0x800, 17, 64, 8, 9, &mvs_94xx_dispatch, },
38 [chip_9445] = { 1, 4, 0x800, 17, 64, 8, 11, &mvs_94xx_dispatch, },
39 [chip_9485] = { 2, 4, 0x800, 17, 64, 8, 11, &mvs_94xx_dispatch, },
40 [chip_1300] = { 1, 4, 0x400, 17, 16, 6, 9, &mvs_64xx_dispatch, },
41 [chip_1320] = { 2, 4, 0x800, 17, 64, 8, 9, &mvs_94xx_dispatch, },
42 };
43
44 struct device_attribute *mvst_host_attrs[];
45
46 #define SOC_SAS_NUM 2
47
48 static struct scsi_host_template mvs_sht = {
49 .module = THIS_MODULE,
50 .name = DRV_NAME,
51 .queuecommand = sas_queuecommand,
52 .target_alloc = sas_target_alloc,
53 .slave_configure = sas_slave_configure,
54 .scan_finished = mvs_scan_finished,
55 .scan_start = mvs_scan_start,
56 .change_queue_depth = sas_change_queue_depth,
57 .bios_param = sas_bios_param,
58 .can_queue = 1,
59 .cmd_per_lun = 1,
60 .this_id = -1,
61 .sg_tablesize = SG_ALL,
62 .max_sectors = SCSI_DEFAULT_MAX_SECTORS,
63 .use_clustering = ENABLE_CLUSTERING,
64 .eh_device_reset_handler = sas_eh_device_reset_handler,
65 .eh_bus_reset_handler = sas_eh_bus_reset_handler,
66 .target_destroy = sas_target_destroy,
67 .ioctl = sas_ioctl,
68 .shost_attrs = mvst_host_attrs,
69 .use_blk_tags = 1,
70 .track_queue_depth = 1,
71 };
72
73 static struct sas_domain_function_template mvs_transport_ops = {
74 .lldd_dev_found = mvs_dev_found,
75 .lldd_dev_gone = mvs_dev_gone,
76 .lldd_execute_task = mvs_queue_command,
77 .lldd_control_phy = mvs_phy_control,
78
79 .lldd_abort_task = mvs_abort_task,
80 .lldd_abort_task_set = mvs_abort_task_set,
81 .lldd_clear_aca = mvs_clear_aca,
82 .lldd_clear_task_set = mvs_clear_task_set,
83 .lldd_I_T_nexus_reset = mvs_I_T_nexus_reset,
84 .lldd_lu_reset = mvs_lu_reset,
85 .lldd_query_task = mvs_query_task,
86 .lldd_port_formed = mvs_port_formed,
87 .lldd_port_deformed = mvs_port_deformed,
88
89 };
90
91 static void mvs_phy_init(struct mvs_info *mvi, int phy_id)
92 {
93 struct mvs_phy *phy = &mvi->phy[phy_id];
94 struct asd_sas_phy *sas_phy = &phy->sas_phy;
95
96 phy->mvi = mvi;
97 phy->port = NULL;
98 init_timer(&phy->timer);
99 sas_phy->enabled = (phy_id < mvi->chip->n_phy) ? 1 : 0;
100 sas_phy->class = SAS;
101 sas_phy->iproto = SAS_PROTOCOL_ALL;
102 sas_phy->tproto = 0;
103 sas_phy->type = PHY_TYPE_PHYSICAL;
104 sas_phy->role = PHY_ROLE_INITIATOR;
105 sas_phy->oob_mode = OOB_NOT_CONNECTED;
106 sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN;
107
108 sas_phy->id = phy_id;
109 sas_phy->sas_addr = &mvi->sas_addr[0];
110 sas_phy->frame_rcvd = &phy->frame_rcvd[0];
111 sas_phy->ha = (struct sas_ha_struct *)mvi->shost->hostdata;
112 sas_phy->lldd_phy = phy;
113 }
114
115 static void mvs_free(struct mvs_info *mvi)
116 {
117 struct mvs_wq *mwq;
118 int slot_nr;
119
120 if (!mvi)
121 return;
122
123 if (mvi->flags & MVF_FLAG_SOC)
124 slot_nr = MVS_SOC_SLOTS;
125 else
126 slot_nr = MVS_CHIP_SLOT_SZ;
127
128 if (mvi->dma_pool)
129 pci_pool_destroy(mvi->dma_pool);
130
131 if (mvi->tx)
132 dma_free_coherent(mvi->dev,
133 sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ,
134 mvi->tx, mvi->tx_dma);
135 if (mvi->rx_fis)
136 dma_free_coherent(mvi->dev, MVS_RX_FISL_SZ,
137 mvi->rx_fis, mvi->rx_fis_dma);
138 if (mvi->rx)
139 dma_free_coherent(mvi->dev,
140 sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1),
141 mvi->rx, mvi->rx_dma);
142 if (mvi->slot)
143 dma_free_coherent(mvi->dev,
144 sizeof(*mvi->slot) * slot_nr,
145 mvi->slot, mvi->slot_dma);
146
147 if (mvi->bulk_buffer)
148 dma_free_coherent(mvi->dev, TRASH_BUCKET_SIZE,
149 mvi->bulk_buffer, mvi->bulk_buffer_dma);
150 if (mvi->bulk_buffer1)
151 dma_free_coherent(mvi->dev, TRASH_BUCKET_SIZE,
152 mvi->bulk_buffer1, mvi->bulk_buffer_dma1);
153
154 MVS_CHIP_DISP->chip_iounmap(mvi);
155 if (mvi->shost)
156 scsi_host_put(mvi->shost);
157 list_for_each_entry(mwq, &mvi->wq_list, entry)
158 cancel_delayed_work(&mwq->work_q);
159 kfree(mvi->tags);
160 kfree(mvi);
161 }
162
163 #ifdef CONFIG_SCSI_MVSAS_TASKLET
164 static void mvs_tasklet(unsigned long opaque)
165 {
166 u32 stat;
167 u16 core_nr, i = 0;
168
169 struct mvs_info *mvi;
170 struct sas_ha_struct *sha = (struct sas_ha_struct *)opaque;
171
172 core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
173 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
174
175 if (unlikely(!mvi))
176 BUG_ON(1);
177
178 stat = MVS_CHIP_DISP->isr_status(mvi, mvi->pdev->irq);
179 if (!stat)
180 goto out;
181
182 for (i = 0; i < core_nr; i++) {
183 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
184 MVS_CHIP_DISP->isr(mvi, mvi->pdev->irq, stat);
185 }
186 out:
187 MVS_CHIP_DISP->interrupt_enable(mvi);
188
189 }
190 #endif
191
192 static irqreturn_t mvs_interrupt(int irq, void *opaque)
193 {
194 u32 core_nr;
195 u32 stat;
196 struct mvs_info *mvi;
197 struct sas_ha_struct *sha = opaque;
198 #ifndef CONFIG_SCSI_MVSAS_TASKLET
199 u32 i;
200 #endif
201
202 core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
203 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
204
205 if (unlikely(!mvi))
206 return IRQ_NONE;
207 #ifdef CONFIG_SCSI_MVSAS_TASKLET
208 MVS_CHIP_DISP->interrupt_disable(mvi);
209 #endif
210
211 stat = MVS_CHIP_DISP->isr_status(mvi, irq);
212 if (!stat) {
213 #ifdef CONFIG_SCSI_MVSAS_TASKLET
214 MVS_CHIP_DISP->interrupt_enable(mvi);
215 #endif
216 return IRQ_NONE;
217 }
218
219 #ifdef CONFIG_SCSI_MVSAS_TASKLET
220 tasklet_schedule(&((struct mvs_prv_info *)sha->lldd_ha)->mv_tasklet);
221 #else
222 for (i = 0; i < core_nr; i++) {
223 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
224 MVS_CHIP_DISP->isr(mvi, irq, stat);
225 }
226 #endif
227 return IRQ_HANDLED;
228 }
229
230 static int mvs_alloc(struct mvs_info *mvi, struct Scsi_Host *shost)
231 {
232 int i = 0, slot_nr;
233 char pool_name[32];
234
235 if (mvi->flags & MVF_FLAG_SOC)
236 slot_nr = MVS_SOC_SLOTS;
237 else
238 slot_nr = MVS_CHIP_SLOT_SZ;
239
240 spin_lock_init(&mvi->lock);
241 for (i = 0; i < mvi->chip->n_phy; i++) {
242 mvs_phy_init(mvi, i);
243 mvi->port[i].wide_port_phymap = 0;
244 mvi->port[i].port_attached = 0;
245 INIT_LIST_HEAD(&mvi->port[i].list);
246 }
247 for (i = 0; i < MVS_MAX_DEVICES; i++) {
248 mvi->devices[i].taskfileset = MVS_ID_NOT_MAPPED;
249 mvi->devices[i].dev_type = SAS_PHY_UNUSED;
250 mvi->devices[i].device_id = i;
251 mvi->devices[i].dev_status = MVS_DEV_NORMAL;
252 init_timer(&mvi->devices[i].timer);
253 }
254
255 /*
256 * alloc and init our DMA areas
257 */
258 mvi->tx = dma_alloc_coherent(mvi->dev,
259 sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ,
260 &mvi->tx_dma, GFP_KERNEL);
261 if (!mvi->tx)
262 goto err_out;
263 memset(mvi->tx, 0, sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ);
264 mvi->rx_fis = dma_alloc_coherent(mvi->dev, MVS_RX_FISL_SZ,
265 &mvi->rx_fis_dma, GFP_KERNEL);
266 if (!mvi->rx_fis)
267 goto err_out;
268 memset(mvi->rx_fis, 0, MVS_RX_FISL_SZ);
269
270 mvi->rx = dma_alloc_coherent(mvi->dev,
271 sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1),
272 &mvi->rx_dma, GFP_KERNEL);
273 if (!mvi->rx)
274 goto err_out;
275 memset(mvi->rx, 0, sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1));
276 mvi->rx[0] = cpu_to_le32(0xfff);
277 mvi->rx_cons = 0xfff;
278
279 mvi->slot = dma_alloc_coherent(mvi->dev,
280 sizeof(*mvi->slot) * slot_nr,
281 &mvi->slot_dma, GFP_KERNEL);
282 if (!mvi->slot)
283 goto err_out;
284 memset(mvi->slot, 0, sizeof(*mvi->slot) * slot_nr);
285
286 mvi->bulk_buffer = dma_alloc_coherent(mvi->dev,
287 TRASH_BUCKET_SIZE,
288 &mvi->bulk_buffer_dma, GFP_KERNEL);
289 if (!mvi->bulk_buffer)
290 goto err_out;
291
292 mvi->bulk_buffer1 = dma_alloc_coherent(mvi->dev,
293 TRASH_BUCKET_SIZE,
294 &mvi->bulk_buffer_dma1, GFP_KERNEL);
295 if (!mvi->bulk_buffer1)
296 goto err_out;
297
298 sprintf(pool_name, "%s%d", "mvs_dma_pool", mvi->id);
299 mvi->dma_pool = pci_pool_create(pool_name, mvi->pdev, MVS_SLOT_BUF_SZ, 16, 0);
300 if (!mvi->dma_pool) {
301 printk(KERN_DEBUG "failed to create dma pool %s.\n", pool_name);
302 goto err_out;
303 }
304 mvi->tags_num = slot_nr;
305
306 /* Initialize tags */
307 mvs_tag_init(mvi);
308 return 0;
309 err_out:
310 return 1;
311 }
312
313
314 int mvs_ioremap(struct mvs_info *mvi, int bar, int bar_ex)
315 {
316 unsigned long res_start, res_len, res_flag, res_flag_ex = 0;
317 struct pci_dev *pdev = mvi->pdev;
318 if (bar_ex != -1) {
319 /*
320 * ioremap main and peripheral registers
321 */
322 res_start = pci_resource_start(pdev, bar_ex);
323 res_len = pci_resource_len(pdev, bar_ex);
324 if (!res_start || !res_len)
325 goto err_out;
326
327 res_flag_ex = pci_resource_flags(pdev, bar_ex);
328 if (res_flag_ex & IORESOURCE_MEM) {
329 if (res_flag_ex & IORESOURCE_CACHEABLE)
330 mvi->regs_ex = ioremap(res_start, res_len);
331 else
332 mvi->regs_ex = ioremap_nocache(res_start,
333 res_len);
334 } else
335 mvi->regs_ex = (void *)res_start;
336 if (!mvi->regs_ex)
337 goto err_out;
338 }
339
340 res_start = pci_resource_start(pdev, bar);
341 res_len = pci_resource_len(pdev, bar);
342 if (!res_start || !res_len)
343 goto err_out;
344
345 res_flag = pci_resource_flags(pdev, bar);
346 if (res_flag & IORESOURCE_CACHEABLE)
347 mvi->regs = ioremap(res_start, res_len);
348 else
349 mvi->regs = ioremap_nocache(res_start, res_len);
350
351 if (!mvi->regs) {
352 if (mvi->regs_ex && (res_flag_ex & IORESOURCE_MEM))
353 iounmap(mvi->regs_ex);
354 mvi->regs_ex = NULL;
355 goto err_out;
356 }
357
358 return 0;
359 err_out:
360 return -1;
361 }
362
363 void mvs_iounmap(void __iomem *regs)
364 {
365 iounmap(regs);
366 }
367
368 static struct mvs_info *mvs_pci_alloc(struct pci_dev *pdev,
369 const struct pci_device_id *ent,
370 struct Scsi_Host *shost, unsigned int id)
371 {
372 struct mvs_info *mvi = NULL;
373 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
374
375 mvi = kzalloc(sizeof(*mvi) +
376 (1L << mvs_chips[ent->driver_data].slot_width) *
377 sizeof(struct mvs_slot_info), GFP_KERNEL);
378 if (!mvi)
379 return NULL;
380
381 mvi->pdev = pdev;
382 mvi->dev = &pdev->dev;
383 mvi->chip_id = ent->driver_data;
384 mvi->chip = &mvs_chips[mvi->chip_id];
385 INIT_LIST_HEAD(&mvi->wq_list);
386
387 ((struct mvs_prv_info *)sha->lldd_ha)->mvi[id] = mvi;
388 ((struct mvs_prv_info *)sha->lldd_ha)->n_phy = mvi->chip->n_phy;
389
390 mvi->id = id;
391 mvi->sas = sha;
392 mvi->shost = shost;
393
394 mvi->tags = kzalloc(MVS_CHIP_SLOT_SZ>>3, GFP_KERNEL);
395 if (!mvi->tags)
396 goto err_out;
397
398 if (MVS_CHIP_DISP->chip_ioremap(mvi))
399 goto err_out;
400 if (!mvs_alloc(mvi, shost))
401 return mvi;
402 err_out:
403 mvs_free(mvi);
404 return NULL;
405 }
406
407 static int pci_go_64(struct pci_dev *pdev)
408 {
409 int rc;
410
411 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
412 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
413 if (rc) {
414 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
415 if (rc) {
416 dev_printk(KERN_ERR, &pdev->dev,
417 "64-bit DMA enable failed\n");
418 return rc;
419 }
420 }
421 } else {
422 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
423 if (rc) {
424 dev_printk(KERN_ERR, &pdev->dev,
425 "32-bit DMA enable failed\n");
426 return rc;
427 }
428 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
429 if (rc) {
430 dev_printk(KERN_ERR, &pdev->dev,
431 "32-bit consistent DMA enable failed\n");
432 return rc;
433 }
434 }
435
436 return rc;
437 }
438
439 static int mvs_prep_sas_ha_init(struct Scsi_Host *shost,
440 const struct mvs_chip_info *chip_info)
441 {
442 int phy_nr, port_nr; unsigned short core_nr;
443 struct asd_sas_phy **arr_phy;
444 struct asd_sas_port **arr_port;
445 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
446
447 core_nr = chip_info->n_host;
448 phy_nr = core_nr * chip_info->n_phy;
449 port_nr = phy_nr;
450
451 memset(sha, 0x00, sizeof(struct sas_ha_struct));
452 arr_phy = kcalloc(phy_nr, sizeof(void *), GFP_KERNEL);
453 arr_port = kcalloc(port_nr, sizeof(void *), GFP_KERNEL);
454 if (!arr_phy || !arr_port)
455 goto exit_free;
456
457 sha->sas_phy = arr_phy;
458 sha->sas_port = arr_port;
459 sha->core.shost = shost;
460
461 sha->lldd_ha = kzalloc(sizeof(struct mvs_prv_info), GFP_KERNEL);
462 if (!sha->lldd_ha)
463 goto exit_free;
464
465 ((struct mvs_prv_info *)sha->lldd_ha)->n_host = core_nr;
466
467 shost->transportt = mvs_stt;
468 shost->max_id = MVS_MAX_DEVICES;
469 shost->max_lun = ~0;
470 shost->max_channel = 1;
471 shost->max_cmd_len = 16;
472
473 return 0;
474 exit_free:
475 kfree(arr_phy);
476 kfree(arr_port);
477 return -1;
478
479 }
480
481 static void mvs_post_sas_ha_init(struct Scsi_Host *shost,
482 const struct mvs_chip_info *chip_info)
483 {
484 int can_queue, i = 0, j = 0;
485 struct mvs_info *mvi = NULL;
486 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
487 unsigned short nr_core = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
488
489 for (j = 0; j < nr_core; j++) {
490 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[j];
491 for (i = 0; i < chip_info->n_phy; i++) {
492 sha->sas_phy[j * chip_info->n_phy + i] =
493 &mvi->phy[i].sas_phy;
494 sha->sas_port[j * chip_info->n_phy + i] =
495 &mvi->port[i].sas_port;
496 }
497 }
498
499 sha->sas_ha_name = DRV_NAME;
500 sha->dev = mvi->dev;
501 sha->lldd_module = THIS_MODULE;
502 sha->sas_addr = &mvi->sas_addr[0];
503
504 sha->num_phys = nr_core * chip_info->n_phy;
505
506 if (mvi->flags & MVF_FLAG_SOC)
507 can_queue = MVS_SOC_CAN_QUEUE;
508 else
509 can_queue = MVS_CHIP_SLOT_SZ;
510
511 shost->sg_tablesize = min_t(u16, SG_ALL, MVS_MAX_SG);
512 shost->can_queue = can_queue;
513 mvi->shost->cmd_per_lun = MVS_QUEUE_SIZE;
514 sha->core.shost = mvi->shost;
515 }
516
517 static void mvs_init_sas_add(struct mvs_info *mvi)
518 {
519 u8 i;
520 for (i = 0; i < mvi->chip->n_phy; i++) {
521 mvi->phy[i].dev_sas_addr = 0x5005043011ab0000ULL;
522 mvi->phy[i].dev_sas_addr =
523 cpu_to_be64((u64)(*(u64 *)&mvi->phy[i].dev_sas_addr));
524 }
525
526 memcpy(mvi->sas_addr, &mvi->phy[0].dev_sas_addr, SAS_ADDR_SIZE);
527 }
528
529 static int mvs_pci_init(struct pci_dev *pdev, const struct pci_device_id *ent)
530 {
531 unsigned int rc, nhost = 0;
532 struct mvs_info *mvi;
533 struct mvs_prv_info *mpi;
534 irq_handler_t irq_handler = mvs_interrupt;
535 struct Scsi_Host *shost = NULL;
536 const struct mvs_chip_info *chip;
537
538 dev_printk(KERN_INFO, &pdev->dev,
539 "mvsas: driver version %s\n", DRV_VERSION);
540 rc = pci_enable_device(pdev);
541 if (rc)
542 goto err_out_enable;
543
544 pci_set_master(pdev);
545
546 rc = pci_request_regions(pdev, DRV_NAME);
547 if (rc)
548 goto err_out_disable;
549
550 rc = pci_go_64(pdev);
551 if (rc)
552 goto err_out_regions;
553
554 shost = scsi_host_alloc(&mvs_sht, sizeof(void *));
555 if (!shost) {
556 rc = -ENOMEM;
557 goto err_out_regions;
558 }
559
560 chip = &mvs_chips[ent->driver_data];
561 SHOST_TO_SAS_HA(shost) =
562 kcalloc(1, sizeof(struct sas_ha_struct), GFP_KERNEL);
563 if (!SHOST_TO_SAS_HA(shost)) {
564 kfree(shost);
565 rc = -ENOMEM;
566 goto err_out_regions;
567 }
568
569 rc = mvs_prep_sas_ha_init(shost, chip);
570 if (rc) {
571 kfree(shost);
572 rc = -ENOMEM;
573 goto err_out_regions;
574 }
575
576 pci_set_drvdata(pdev, SHOST_TO_SAS_HA(shost));
577
578 do {
579 mvi = mvs_pci_alloc(pdev, ent, shost, nhost);
580 if (!mvi) {
581 rc = -ENOMEM;
582 goto err_out_regions;
583 }
584
585 memset(&mvi->hba_info_param, 0xFF,
586 sizeof(struct hba_info_page));
587
588 mvs_init_sas_add(mvi);
589
590 mvi->instance = nhost;
591 rc = MVS_CHIP_DISP->chip_init(mvi);
592 if (rc) {
593 mvs_free(mvi);
594 goto err_out_regions;
595 }
596 nhost++;
597 } while (nhost < chip->n_host);
598 mpi = (struct mvs_prv_info *)(SHOST_TO_SAS_HA(shost)->lldd_ha);
599 #ifdef CONFIG_SCSI_MVSAS_TASKLET
600 tasklet_init(&(mpi->mv_tasklet), mvs_tasklet,
601 (unsigned long)SHOST_TO_SAS_HA(shost));
602 #endif
603
604 mvs_post_sas_ha_init(shost, chip);
605
606 rc = scsi_add_host(shost, &pdev->dev);
607 if (rc)
608 goto err_out_shost;
609
610 rc = sas_register_ha(SHOST_TO_SAS_HA(shost));
611 if (rc)
612 goto err_out_shost;
613 rc = request_irq(pdev->irq, irq_handler, IRQF_SHARED,
614 DRV_NAME, SHOST_TO_SAS_HA(shost));
615 if (rc)
616 goto err_not_sas;
617
618 MVS_CHIP_DISP->interrupt_enable(mvi);
619
620 scsi_scan_host(mvi->shost);
621
622 return 0;
623
624 err_not_sas:
625 sas_unregister_ha(SHOST_TO_SAS_HA(shost));
626 err_out_shost:
627 scsi_remove_host(mvi->shost);
628 err_out_regions:
629 pci_release_regions(pdev);
630 err_out_disable:
631 pci_disable_device(pdev);
632 err_out_enable:
633 return rc;
634 }
635
636 static void mvs_pci_remove(struct pci_dev *pdev)
637 {
638 unsigned short core_nr, i = 0;
639 struct sas_ha_struct *sha = pci_get_drvdata(pdev);
640 struct mvs_info *mvi = NULL;
641
642 core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
643 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
644
645 #ifdef CONFIG_SCSI_MVSAS_TASKLET
646 tasklet_kill(&((struct mvs_prv_info *)sha->lldd_ha)->mv_tasklet);
647 #endif
648
649 sas_unregister_ha(sha);
650 sas_remove_host(mvi->shost);
651 scsi_remove_host(mvi->shost);
652
653 MVS_CHIP_DISP->interrupt_disable(mvi);
654 free_irq(mvi->pdev->irq, sha);
655 for (i = 0; i < core_nr; i++) {
656 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
657 mvs_free(mvi);
658 }
659 kfree(sha->sas_phy);
660 kfree(sha->sas_port);
661 kfree(sha);
662 pci_release_regions(pdev);
663 pci_disable_device(pdev);
664 return;
665 }
666
667 static struct pci_device_id mvs_pci_table[] = {
668 { PCI_VDEVICE(MARVELL, 0x6320), chip_6320 },
669 { PCI_VDEVICE(MARVELL, 0x6340), chip_6440 },
670 {
671 .vendor = PCI_VENDOR_ID_MARVELL,
672 .device = 0x6440,
673 .subvendor = PCI_ANY_ID,
674 .subdevice = 0x6480,
675 .class = 0,
676 .class_mask = 0,
677 .driver_data = chip_6485,
678 },
679 { PCI_VDEVICE(MARVELL, 0x6440), chip_6440 },
680 { PCI_VDEVICE(MARVELL, 0x6485), chip_6485 },
681 { PCI_VDEVICE(MARVELL, 0x9480), chip_9480 },
682 { PCI_VDEVICE(MARVELL, 0x9180), chip_9180 },
683 { PCI_VDEVICE(ARECA, PCI_DEVICE_ID_ARECA_1300), chip_1300 },
684 { PCI_VDEVICE(ARECA, PCI_DEVICE_ID_ARECA_1320), chip_1320 },
685 { PCI_VDEVICE(ADAPTEC2, 0x0450), chip_6440 },
686 { PCI_VDEVICE(TTI, 0x2710), chip_9480 },
687 { PCI_VDEVICE(TTI, 0x2720), chip_9480 },
688 { PCI_VDEVICE(TTI, 0x2721), chip_9480 },
689 { PCI_VDEVICE(TTI, 0x2722), chip_9480 },
690 { PCI_VDEVICE(TTI, 0x2740), chip_9480 },
691 { PCI_VDEVICE(TTI, 0x2744), chip_9480 },
692 { PCI_VDEVICE(TTI, 0x2760), chip_9480 },
693 {
694 .vendor = PCI_VENDOR_ID_MARVELL_EXT,
695 .device = 0x9480,
696 .subvendor = PCI_ANY_ID,
697 .subdevice = 0x9480,
698 .class = 0,
699 .class_mask = 0,
700 .driver_data = chip_9480,
701 },
702 {
703 .vendor = PCI_VENDOR_ID_MARVELL_EXT,
704 .device = 0x9445,
705 .subvendor = PCI_ANY_ID,
706 .subdevice = 0x9480,
707 .class = 0,
708 .class_mask = 0,
709 .driver_data = chip_9445,
710 },
711 {
712 .vendor = PCI_VENDOR_ID_MARVELL_EXT,
713 .device = 0x9485,
714 .subvendor = PCI_ANY_ID,
715 .subdevice = 0x9480,
716 .class = 0,
717 .class_mask = 0,
718 .driver_data = chip_9485,
719 },
720 {
721 .vendor = PCI_VENDOR_ID_MARVELL_EXT,
722 .device = 0x9485,
723 .subvendor = PCI_ANY_ID,
724 .subdevice = 0x9485,
725 .class = 0,
726 .class_mask = 0,
727 .driver_data = chip_9485,
728 },
729 { PCI_VDEVICE(OCZ, 0x1021), chip_9485}, /* OCZ RevoDrive3 */
730 { PCI_VDEVICE(OCZ, 0x1022), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
731 { PCI_VDEVICE(OCZ, 0x1040), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
732 { PCI_VDEVICE(OCZ, 0x1041), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
733 { PCI_VDEVICE(OCZ, 0x1042), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
734 { PCI_VDEVICE(OCZ, 0x1043), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
735 { PCI_VDEVICE(OCZ, 0x1044), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
736 { PCI_VDEVICE(OCZ, 0x1080), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
737 { PCI_VDEVICE(OCZ, 0x1083), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
738 { PCI_VDEVICE(OCZ, 0x1084), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
739
740 { } /* terminate list */
741 };
742
743 static struct pci_driver mvs_pci_driver = {
744 .name = DRV_NAME,
745 .id_table = mvs_pci_table,
746 .probe = mvs_pci_init,
747 .remove = mvs_pci_remove,
748 };
749
750 static ssize_t
751 mvs_show_driver_version(struct device *cdev,
752 struct device_attribute *attr, char *buffer)
753 {
754 return snprintf(buffer, PAGE_SIZE, "%s\n", DRV_VERSION);
755 }
756
757 static DEVICE_ATTR(driver_version,
758 S_IRUGO,
759 mvs_show_driver_version,
760 NULL);
761
762 static ssize_t
763 mvs_store_interrupt_coalescing(struct device *cdev,
764 struct device_attribute *attr,
765 const char *buffer, size_t size)
766 {
767 int val = 0;
768 struct mvs_info *mvi = NULL;
769 struct Scsi_Host *shost = class_to_shost(cdev);
770 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
771 u8 i, core_nr;
772 if (buffer == NULL)
773 return size;
774
775 if (sscanf(buffer, "%d", &val) != 1)
776 return -EINVAL;
777
778 if (val >= 0x10000) {
779 mv_dprintk("interrupt coalescing timer %d us is"
780 "too long\n", val);
781 return strlen(buffer);
782 }
783
784 interrupt_coalescing = val;
785
786 core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
787 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
788
789 if (unlikely(!mvi))
790 return -EINVAL;
791
792 for (i = 0; i < core_nr; i++) {
793 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
794 if (MVS_CHIP_DISP->tune_interrupt)
795 MVS_CHIP_DISP->tune_interrupt(mvi,
796 interrupt_coalescing);
797 }
798 mv_dprintk("set interrupt coalescing time to %d us\n",
799 interrupt_coalescing);
800 return strlen(buffer);
801 }
802
803 static ssize_t mvs_show_interrupt_coalescing(struct device *cdev,
804 struct device_attribute *attr, char *buffer)
805 {
806 return snprintf(buffer, PAGE_SIZE, "%d\n", interrupt_coalescing);
807 }
808
809 static DEVICE_ATTR(interrupt_coalescing,
810 S_IRUGO|S_IWUSR,
811 mvs_show_interrupt_coalescing,
812 mvs_store_interrupt_coalescing);
813
814 /* task handler */
815 struct task_struct *mvs_th;
816 static int __init mvs_init(void)
817 {
818 int rc;
819 mvs_stt = sas_domain_attach_transport(&mvs_transport_ops);
820 if (!mvs_stt)
821 return -ENOMEM;
822
823 rc = pci_register_driver(&mvs_pci_driver);
824 if (rc)
825 goto err_out;
826
827 return 0;
828
829 err_out:
830 sas_release_transport(mvs_stt);
831 return rc;
832 }
833
834 static void __exit mvs_exit(void)
835 {
836 pci_unregister_driver(&mvs_pci_driver);
837 sas_release_transport(mvs_stt);
838 }
839
840 struct device_attribute *mvst_host_attrs[] = {
841 &dev_attr_driver_version,
842 &dev_attr_interrupt_coalescing,
843 NULL,
844 };
845
846 module_init(mvs_init);
847 module_exit(mvs_exit);
848
849 MODULE_AUTHOR("Jeff Garzik <jgarzik@pobox.com>");
850 MODULE_DESCRIPTION("Marvell 88SE6440 SAS/SATA controller driver");
851 MODULE_VERSION(DRV_VERSION);
852 MODULE_LICENSE("GPL");
853 #ifdef CONFIG_PCI
854 MODULE_DEVICE_TABLE(pci, mvs_pci_table);
855 #endif
Linux kernel - Deliverables
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