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Merge tag 'libnvdimm-for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm...
[mirror_ubuntu-bionic-kernel.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 .this_id = -1,
60 .sg_tablesize = SG_ALL,
61 .max_sectors = SCSI_DEFAULT_MAX_SECTORS,
62 .use_clustering = ENABLE_CLUSTERING,
63 .eh_device_reset_handler = sas_eh_device_reset_handler,
64 .eh_bus_reset_handler = sas_eh_bus_reset_handler,
65 .target_destroy = sas_target_destroy,
66 .ioctl = sas_ioctl,
67 .shost_attrs = mvst_host_attrs,
68 .use_blk_tags = 1,
69 .track_queue_depth = 1,
70 };
71
72 static struct sas_domain_function_template mvs_transport_ops = {
73 .lldd_dev_found = mvs_dev_found,
74 .lldd_dev_gone = mvs_dev_gone,
75 .lldd_execute_task = mvs_queue_command,
76 .lldd_control_phy = mvs_phy_control,
77
78 .lldd_abort_task = mvs_abort_task,
79 .lldd_abort_task_set = mvs_abort_task_set,
80 .lldd_clear_aca = mvs_clear_aca,
81 .lldd_clear_task_set = mvs_clear_task_set,
82 .lldd_I_T_nexus_reset = mvs_I_T_nexus_reset,
83 .lldd_lu_reset = mvs_lu_reset,
84 .lldd_query_task = mvs_query_task,
85 .lldd_port_formed = mvs_port_formed,
86 .lldd_port_deformed = mvs_port_deformed,
87
88 };
89
90 static void mvs_phy_init(struct mvs_info *mvi, int phy_id)
91 {
92 struct mvs_phy *phy = &mvi->phy[phy_id];
93 struct asd_sas_phy *sas_phy = &phy->sas_phy;
94
95 phy->mvi = mvi;
96 phy->port = NULL;
97 init_timer(&phy->timer);
98 sas_phy->enabled = (phy_id < mvi->chip->n_phy) ? 1 : 0;
99 sas_phy->class = SAS;
100 sas_phy->iproto = SAS_PROTOCOL_ALL;
101 sas_phy->tproto = 0;
102 sas_phy->type = PHY_TYPE_PHYSICAL;
103 sas_phy->role = PHY_ROLE_INITIATOR;
104 sas_phy->oob_mode = OOB_NOT_CONNECTED;
105 sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN;
106
107 sas_phy->id = phy_id;
108 sas_phy->sas_addr = &mvi->sas_addr[0];
109 sas_phy->frame_rcvd = &phy->frame_rcvd[0];
110 sas_phy->ha = (struct sas_ha_struct *)mvi->shost->hostdata;
111 sas_phy->lldd_phy = phy;
112 }
113
114 static void mvs_free(struct mvs_info *mvi)
115 {
116 struct mvs_wq *mwq;
117 int slot_nr;
118
119 if (!mvi)
120 return;
121
122 if (mvi->flags & MVF_FLAG_SOC)
123 slot_nr = MVS_SOC_SLOTS;
124 else
125 slot_nr = MVS_CHIP_SLOT_SZ;
126
127 if (mvi->dma_pool)
128 pci_pool_destroy(mvi->dma_pool);
129
130 if (mvi->tx)
131 dma_free_coherent(mvi->dev,
132 sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ,
133 mvi->tx, mvi->tx_dma);
134 if (mvi->rx_fis)
135 dma_free_coherent(mvi->dev, MVS_RX_FISL_SZ,
136 mvi->rx_fis, mvi->rx_fis_dma);
137 if (mvi->rx)
138 dma_free_coherent(mvi->dev,
139 sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1),
140 mvi->rx, mvi->rx_dma);
141 if (mvi->slot)
142 dma_free_coherent(mvi->dev,
143 sizeof(*mvi->slot) * slot_nr,
144 mvi->slot, mvi->slot_dma);
145
146 if (mvi->bulk_buffer)
147 dma_free_coherent(mvi->dev, TRASH_BUCKET_SIZE,
148 mvi->bulk_buffer, mvi->bulk_buffer_dma);
149 if (mvi->bulk_buffer1)
150 dma_free_coherent(mvi->dev, TRASH_BUCKET_SIZE,
151 mvi->bulk_buffer1, mvi->bulk_buffer_dma1);
152
153 MVS_CHIP_DISP->chip_iounmap(mvi);
154 if (mvi->shost)
155 scsi_host_put(mvi->shost);
156 list_for_each_entry(mwq, &mvi->wq_list, entry)
157 cancel_delayed_work(&mwq->work_q);
158 kfree(mvi->tags);
159 kfree(mvi);
160 }
161
162 #ifdef CONFIG_SCSI_MVSAS_TASKLET
163 static void mvs_tasklet(unsigned long opaque)
164 {
165 u32 stat;
166 u16 core_nr, i = 0;
167
168 struct mvs_info *mvi;
169 struct sas_ha_struct *sha = (struct sas_ha_struct *)opaque;
170
171 core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
172 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
173
174 if (unlikely(!mvi))
175 BUG_ON(1);
176
177 stat = MVS_CHIP_DISP->isr_status(mvi, mvi->pdev->irq);
178 if (!stat)
179 goto out;
180
181 for (i = 0; i < core_nr; i++) {
182 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
183 MVS_CHIP_DISP->isr(mvi, mvi->pdev->irq, stat);
184 }
185 out:
186 MVS_CHIP_DISP->interrupt_enable(mvi);
187
188 }
189 #endif
190
191 static irqreturn_t mvs_interrupt(int irq, void *opaque)
192 {
193 u32 core_nr;
194 u32 stat;
195 struct mvs_info *mvi;
196 struct sas_ha_struct *sha = opaque;
197 #ifndef CONFIG_SCSI_MVSAS_TASKLET
198 u32 i;
199 #endif
200
201 core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
202 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
203
204 if (unlikely(!mvi))
205 return IRQ_NONE;
206 #ifdef CONFIG_SCSI_MVSAS_TASKLET
207 MVS_CHIP_DISP->interrupt_disable(mvi);
208 #endif
209
210 stat = MVS_CHIP_DISP->isr_status(mvi, irq);
211 if (!stat) {
212 #ifdef CONFIG_SCSI_MVSAS_TASKLET
213 MVS_CHIP_DISP->interrupt_enable(mvi);
214 #endif
215 return IRQ_NONE;
216 }
217
218 #ifdef CONFIG_SCSI_MVSAS_TASKLET
219 tasklet_schedule(&((struct mvs_prv_info *)sha->lldd_ha)->mv_tasklet);
220 #else
221 for (i = 0; i < core_nr; i++) {
222 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
223 MVS_CHIP_DISP->isr(mvi, irq, stat);
224 }
225 #endif
226 return IRQ_HANDLED;
227 }
228
229 static int mvs_alloc(struct mvs_info *mvi, struct Scsi_Host *shost)
230 {
231 int i = 0, slot_nr;
232 char pool_name[32];
233
234 if (mvi->flags & MVF_FLAG_SOC)
235 slot_nr = MVS_SOC_SLOTS;
236 else
237 slot_nr = MVS_CHIP_SLOT_SZ;
238
239 spin_lock_init(&mvi->lock);
240 for (i = 0; i < mvi->chip->n_phy; i++) {
241 mvs_phy_init(mvi, i);
242 mvi->port[i].wide_port_phymap = 0;
243 mvi->port[i].port_attached = 0;
244 INIT_LIST_HEAD(&mvi->port[i].list);
245 }
246 for (i = 0; i < MVS_MAX_DEVICES; i++) {
247 mvi->devices[i].taskfileset = MVS_ID_NOT_MAPPED;
248 mvi->devices[i].dev_type = SAS_PHY_UNUSED;
249 mvi->devices[i].device_id = i;
250 mvi->devices[i].dev_status = MVS_DEV_NORMAL;
251 init_timer(&mvi->devices[i].timer);
252 }
253
254 /*
255 * alloc and init our DMA areas
256 */
257 mvi->tx = dma_alloc_coherent(mvi->dev,
258 sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ,
259 &mvi->tx_dma, GFP_KERNEL);
260 if (!mvi->tx)
261 goto err_out;
262 memset(mvi->tx, 0, sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ);
263 mvi->rx_fis = dma_alloc_coherent(mvi->dev, MVS_RX_FISL_SZ,
264 &mvi->rx_fis_dma, GFP_KERNEL);
265 if (!mvi->rx_fis)
266 goto err_out;
267 memset(mvi->rx_fis, 0, MVS_RX_FISL_SZ);
268
269 mvi->rx = dma_alloc_coherent(mvi->dev,
270 sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1),
271 &mvi->rx_dma, GFP_KERNEL);
272 if (!mvi->rx)
273 goto err_out;
274 memset(mvi->rx, 0, sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1));
275 mvi->rx[0] = cpu_to_le32(0xfff);
276 mvi->rx_cons = 0xfff;
277
278 mvi->slot = dma_alloc_coherent(mvi->dev,
279 sizeof(*mvi->slot) * slot_nr,
280 &mvi->slot_dma, GFP_KERNEL);
281 if (!mvi->slot)
282 goto err_out;
283 memset(mvi->slot, 0, sizeof(*mvi->slot) * slot_nr);
284
285 mvi->bulk_buffer = dma_alloc_coherent(mvi->dev,
286 TRASH_BUCKET_SIZE,
287 &mvi->bulk_buffer_dma, GFP_KERNEL);
288 if (!mvi->bulk_buffer)
289 goto err_out;
290
291 mvi->bulk_buffer1 = dma_alloc_coherent(mvi->dev,
292 TRASH_BUCKET_SIZE,
293 &mvi->bulk_buffer_dma1, GFP_KERNEL);
294 if (!mvi->bulk_buffer1)
295 goto err_out;
296
297 sprintf(pool_name, "%s%d", "mvs_dma_pool", mvi->id);
298 mvi->dma_pool = pci_pool_create(pool_name, mvi->pdev, MVS_SLOT_BUF_SZ, 16, 0);
299 if (!mvi->dma_pool) {
300 printk(KERN_DEBUG "failed to create dma pool %s.\n", pool_name);
301 goto err_out;
302 }
303 mvi->tags_num = slot_nr;
304
305 /* Initialize tags */
306 mvs_tag_init(mvi);
307 return 0;
308 err_out:
309 return 1;
310 }
311
312
313 int mvs_ioremap(struct mvs_info *mvi, int bar, int bar_ex)
314 {
315 unsigned long res_start, res_len, res_flag, res_flag_ex = 0;
316 struct pci_dev *pdev = mvi->pdev;
317 if (bar_ex != -1) {
318 /*
319 * ioremap main and peripheral registers
320 */
321 res_start = pci_resource_start(pdev, bar_ex);
322 res_len = pci_resource_len(pdev, bar_ex);
323 if (!res_start || !res_len)
324 goto err_out;
325
326 res_flag_ex = pci_resource_flags(pdev, bar_ex);
327 if (res_flag_ex & IORESOURCE_MEM)
328 mvi->regs_ex = ioremap(res_start, res_len);
329 else
330 mvi->regs_ex = (void *)res_start;
331 if (!mvi->regs_ex)
332 goto err_out;
333 }
334
335 res_start = pci_resource_start(pdev, bar);
336 res_len = pci_resource_len(pdev, bar);
337 if (!res_start || !res_len) {
338 iounmap(mvi->regs_ex);
339 mvi->regs_ex = NULL;
340 goto err_out;
341 }
342
343 res_flag = pci_resource_flags(pdev, bar);
344 mvi->regs = ioremap(res_start, res_len);
345
346 if (!mvi->regs) {
347 if (mvi->regs_ex && (res_flag_ex & IORESOURCE_MEM))
348 iounmap(mvi->regs_ex);
349 mvi->regs_ex = NULL;
350 goto err_out;
351 }
352
353 return 0;
354 err_out:
355 return -1;
356 }
357
358 void mvs_iounmap(void __iomem *regs)
359 {
360 iounmap(regs);
361 }
362
363 static struct mvs_info *mvs_pci_alloc(struct pci_dev *pdev,
364 const struct pci_device_id *ent,
365 struct Scsi_Host *shost, unsigned int id)
366 {
367 struct mvs_info *mvi = NULL;
368 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
369
370 mvi = kzalloc(sizeof(*mvi) +
371 (1L << mvs_chips[ent->driver_data].slot_width) *
372 sizeof(struct mvs_slot_info), GFP_KERNEL);
373 if (!mvi)
374 return NULL;
375
376 mvi->pdev = pdev;
377 mvi->dev = &pdev->dev;
378 mvi->chip_id = ent->driver_data;
379 mvi->chip = &mvs_chips[mvi->chip_id];
380 INIT_LIST_HEAD(&mvi->wq_list);
381
382 ((struct mvs_prv_info *)sha->lldd_ha)->mvi[id] = mvi;
383 ((struct mvs_prv_info *)sha->lldd_ha)->n_phy = mvi->chip->n_phy;
384
385 mvi->id = id;
386 mvi->sas = sha;
387 mvi->shost = shost;
388
389 mvi->tags = kzalloc(MVS_CHIP_SLOT_SZ>>3, GFP_KERNEL);
390 if (!mvi->tags)
391 goto err_out;
392
393 if (MVS_CHIP_DISP->chip_ioremap(mvi))
394 goto err_out;
395 if (!mvs_alloc(mvi, shost))
396 return mvi;
397 err_out:
398 mvs_free(mvi);
399 return NULL;
400 }
401
402 static int pci_go_64(struct pci_dev *pdev)
403 {
404 int rc;
405
406 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
407 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
408 if (rc) {
409 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
410 if (rc) {
411 dev_printk(KERN_ERR, &pdev->dev,
412 "64-bit DMA enable failed\n");
413 return rc;
414 }
415 }
416 } else {
417 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
418 if (rc) {
419 dev_printk(KERN_ERR, &pdev->dev,
420 "32-bit DMA enable failed\n");
421 return rc;
422 }
423 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
424 if (rc) {
425 dev_printk(KERN_ERR, &pdev->dev,
426 "32-bit consistent DMA enable failed\n");
427 return rc;
428 }
429 }
430
431 return rc;
432 }
433
434 static int mvs_prep_sas_ha_init(struct Scsi_Host *shost,
435 const struct mvs_chip_info *chip_info)
436 {
437 int phy_nr, port_nr; unsigned short core_nr;
438 struct asd_sas_phy **arr_phy;
439 struct asd_sas_port **arr_port;
440 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
441
442 core_nr = chip_info->n_host;
443 phy_nr = core_nr * chip_info->n_phy;
444 port_nr = phy_nr;
445
446 memset(sha, 0x00, sizeof(struct sas_ha_struct));
447 arr_phy = kcalloc(phy_nr, sizeof(void *), GFP_KERNEL);
448 arr_port = kcalloc(port_nr, sizeof(void *), GFP_KERNEL);
449 if (!arr_phy || !arr_port)
450 goto exit_free;
451
452 sha->sas_phy = arr_phy;
453 sha->sas_port = arr_port;
454 sha->core.shost = shost;
455
456 sha->lldd_ha = kzalloc(sizeof(struct mvs_prv_info), GFP_KERNEL);
457 if (!sha->lldd_ha)
458 goto exit_free;
459
460 ((struct mvs_prv_info *)sha->lldd_ha)->n_host = core_nr;
461
462 shost->transportt = mvs_stt;
463 shost->max_id = MVS_MAX_DEVICES;
464 shost->max_lun = ~0;
465 shost->max_channel = 1;
466 shost->max_cmd_len = 16;
467
468 return 0;
469 exit_free:
470 kfree(arr_phy);
471 kfree(arr_port);
472 return -1;
473
474 }
475
476 static void mvs_post_sas_ha_init(struct Scsi_Host *shost,
477 const struct mvs_chip_info *chip_info)
478 {
479 int can_queue, i = 0, j = 0;
480 struct mvs_info *mvi = NULL;
481 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
482 unsigned short nr_core = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
483
484 for (j = 0; j < nr_core; j++) {
485 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[j];
486 for (i = 0; i < chip_info->n_phy; i++) {
487 sha->sas_phy[j * chip_info->n_phy + i] =
488 &mvi->phy[i].sas_phy;
489 sha->sas_port[j * chip_info->n_phy + i] =
490 &mvi->port[i].sas_port;
491 }
492 }
493
494 sha->sas_ha_name = DRV_NAME;
495 sha->dev = mvi->dev;
496 sha->lldd_module = THIS_MODULE;
497 sha->sas_addr = &mvi->sas_addr[0];
498
499 sha->num_phys = nr_core * chip_info->n_phy;
500
501 if (mvi->flags & MVF_FLAG_SOC)
502 can_queue = MVS_SOC_CAN_QUEUE;
503 else
504 can_queue = MVS_CHIP_SLOT_SZ;
505
506 shost->sg_tablesize = min_t(u16, SG_ALL, MVS_MAX_SG);
507 shost->can_queue = can_queue;
508 mvi->shost->cmd_per_lun = MVS_QUEUE_SIZE;
509 sha->core.shost = mvi->shost;
510 }
511
512 static void mvs_init_sas_add(struct mvs_info *mvi)
513 {
514 u8 i;
515 for (i = 0; i < mvi->chip->n_phy; i++) {
516 mvi->phy[i].dev_sas_addr = 0x5005043011ab0000ULL;
517 mvi->phy[i].dev_sas_addr =
518 cpu_to_be64((u64)(*(u64 *)&mvi->phy[i].dev_sas_addr));
519 }
520
521 memcpy(mvi->sas_addr, &mvi->phy[0].dev_sas_addr, SAS_ADDR_SIZE);
522 }
523
524 static int mvs_pci_init(struct pci_dev *pdev, const struct pci_device_id *ent)
525 {
526 unsigned int rc, nhost = 0;
527 struct mvs_info *mvi;
528 struct mvs_prv_info *mpi;
529 irq_handler_t irq_handler = mvs_interrupt;
530 struct Scsi_Host *shost = NULL;
531 const struct mvs_chip_info *chip;
532
533 dev_printk(KERN_INFO, &pdev->dev,
534 "mvsas: driver version %s\n", DRV_VERSION);
535 rc = pci_enable_device(pdev);
536 if (rc)
537 goto err_out_enable;
538
539 pci_set_master(pdev);
540
541 rc = pci_request_regions(pdev, DRV_NAME);
542 if (rc)
543 goto err_out_disable;
544
545 rc = pci_go_64(pdev);
546 if (rc)
547 goto err_out_regions;
548
549 shost = scsi_host_alloc(&mvs_sht, sizeof(void *));
550 if (!shost) {
551 rc = -ENOMEM;
552 goto err_out_regions;
553 }
554
555 chip = &mvs_chips[ent->driver_data];
556 SHOST_TO_SAS_HA(shost) =
557 kcalloc(1, sizeof(struct sas_ha_struct), GFP_KERNEL);
558 if (!SHOST_TO_SAS_HA(shost)) {
559 kfree(shost);
560 rc = -ENOMEM;
561 goto err_out_regions;
562 }
563
564 rc = mvs_prep_sas_ha_init(shost, chip);
565 if (rc) {
566 kfree(shost);
567 rc = -ENOMEM;
568 goto err_out_regions;
569 }
570
571 pci_set_drvdata(pdev, SHOST_TO_SAS_HA(shost));
572
573 do {
574 mvi = mvs_pci_alloc(pdev, ent, shost, nhost);
575 if (!mvi) {
576 rc = -ENOMEM;
577 goto err_out_regions;
578 }
579
580 memset(&mvi->hba_info_param, 0xFF,
581 sizeof(struct hba_info_page));
582
583 mvs_init_sas_add(mvi);
584
585 mvi->instance = nhost;
586 rc = MVS_CHIP_DISP->chip_init(mvi);
587 if (rc) {
588 mvs_free(mvi);
589 goto err_out_regions;
590 }
591 nhost++;
592 } while (nhost < chip->n_host);
593 mpi = (struct mvs_prv_info *)(SHOST_TO_SAS_HA(shost)->lldd_ha);
594 #ifdef CONFIG_SCSI_MVSAS_TASKLET
595 tasklet_init(&(mpi->mv_tasklet), mvs_tasklet,
596 (unsigned long)SHOST_TO_SAS_HA(shost));
597 #endif
598
599 mvs_post_sas_ha_init(shost, chip);
600
601 rc = scsi_add_host(shost, &pdev->dev);
602 if (rc)
603 goto err_out_shost;
604
605 rc = sas_register_ha(SHOST_TO_SAS_HA(shost));
606 if (rc)
607 goto err_out_shost;
608 rc = request_irq(pdev->irq, irq_handler, IRQF_SHARED,
609 DRV_NAME, SHOST_TO_SAS_HA(shost));
610 if (rc)
611 goto err_not_sas;
612
613 MVS_CHIP_DISP->interrupt_enable(mvi);
614
615 scsi_scan_host(mvi->shost);
616
617 return 0;
618
619 err_not_sas:
620 sas_unregister_ha(SHOST_TO_SAS_HA(shost));
621 err_out_shost:
622 scsi_remove_host(mvi->shost);
623 err_out_regions:
624 pci_release_regions(pdev);
625 err_out_disable:
626 pci_disable_device(pdev);
627 err_out_enable:
628 return rc;
629 }
630
631 static void mvs_pci_remove(struct pci_dev *pdev)
632 {
633 unsigned short core_nr, i = 0;
634 struct sas_ha_struct *sha = pci_get_drvdata(pdev);
635 struct mvs_info *mvi = NULL;
636
637 core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
638 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
639
640 #ifdef CONFIG_SCSI_MVSAS_TASKLET
641 tasklet_kill(&((struct mvs_prv_info *)sha->lldd_ha)->mv_tasklet);
642 #endif
643
644 sas_unregister_ha(sha);
645 sas_remove_host(mvi->shost);
646 scsi_remove_host(mvi->shost);
647
648 MVS_CHIP_DISP->interrupt_disable(mvi);
649 free_irq(mvi->pdev->irq, sha);
650 for (i = 0; i < core_nr; i++) {
651 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
652 mvs_free(mvi);
653 }
654 kfree(sha->sas_phy);
655 kfree(sha->sas_port);
656 kfree(sha);
657 pci_release_regions(pdev);
658 pci_disable_device(pdev);
659 return;
660 }
661
662 static struct pci_device_id mvs_pci_table[] = {
663 { PCI_VDEVICE(MARVELL, 0x6320), chip_6320 },
664 { PCI_VDEVICE(MARVELL, 0x6340), chip_6440 },
665 {
666 .vendor = PCI_VENDOR_ID_MARVELL,
667 .device = 0x6440,
668 .subvendor = PCI_ANY_ID,
669 .subdevice = 0x6480,
670 .class = 0,
671 .class_mask = 0,
672 .driver_data = chip_6485,
673 },
674 { PCI_VDEVICE(MARVELL, 0x6440), chip_6440 },
675 { PCI_VDEVICE(MARVELL, 0x6485), chip_6485 },
676 { PCI_VDEVICE(MARVELL, 0x9480), chip_9480 },
677 { PCI_VDEVICE(MARVELL, 0x9180), chip_9180 },
678 { PCI_VDEVICE(ARECA, PCI_DEVICE_ID_ARECA_1300), chip_1300 },
679 { PCI_VDEVICE(ARECA, PCI_DEVICE_ID_ARECA_1320), chip_1320 },
680 { PCI_VDEVICE(ADAPTEC2, 0x0450), chip_6440 },
681 { PCI_VDEVICE(TTI, 0x2710), chip_9480 },
682 { PCI_VDEVICE(TTI, 0x2720), chip_9480 },
683 { PCI_VDEVICE(TTI, 0x2721), chip_9480 },
684 { PCI_VDEVICE(TTI, 0x2722), chip_9480 },
685 { PCI_VDEVICE(TTI, 0x2740), chip_9480 },
686 { PCI_VDEVICE(TTI, 0x2744), chip_9480 },
687 { PCI_VDEVICE(TTI, 0x2760), chip_9480 },
688 {
689 .vendor = PCI_VENDOR_ID_MARVELL_EXT,
690 .device = 0x9480,
691 .subvendor = PCI_ANY_ID,
692 .subdevice = 0x9480,
693 .class = 0,
694 .class_mask = 0,
695 .driver_data = chip_9480,
696 },
697 {
698 .vendor = PCI_VENDOR_ID_MARVELL_EXT,
699 .device = 0x9445,
700 .subvendor = PCI_ANY_ID,
701 .subdevice = 0x9480,
702 .class = 0,
703 .class_mask = 0,
704 .driver_data = chip_9445,
705 },
706 {
707 .vendor = PCI_VENDOR_ID_MARVELL_EXT,
708 .device = 0x9485,
709 .subvendor = PCI_ANY_ID,
710 .subdevice = 0x9480,
711 .class = 0,
712 .class_mask = 0,
713 .driver_data = chip_9485,
714 },
715 {
716 .vendor = PCI_VENDOR_ID_MARVELL_EXT,
717 .device = 0x9485,
718 .subvendor = PCI_ANY_ID,
719 .subdevice = 0x9485,
720 .class = 0,
721 .class_mask = 0,
722 .driver_data = chip_9485,
723 },
724 { PCI_VDEVICE(OCZ, 0x1021), chip_9485}, /* OCZ RevoDrive3 */
725 { PCI_VDEVICE(OCZ, 0x1022), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
726 { PCI_VDEVICE(OCZ, 0x1040), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
727 { PCI_VDEVICE(OCZ, 0x1041), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
728 { PCI_VDEVICE(OCZ, 0x1042), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
729 { PCI_VDEVICE(OCZ, 0x1043), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
730 { PCI_VDEVICE(OCZ, 0x1044), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
731 { PCI_VDEVICE(OCZ, 0x1080), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
732 { PCI_VDEVICE(OCZ, 0x1083), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
733 { PCI_VDEVICE(OCZ, 0x1084), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
734
735 { } /* terminate list */
736 };
737
738 static struct pci_driver mvs_pci_driver = {
739 .name = DRV_NAME,
740 .id_table = mvs_pci_table,
741 .probe = mvs_pci_init,
742 .remove = mvs_pci_remove,
743 };
744
745 static ssize_t
746 mvs_show_driver_version(struct device *cdev,
747 struct device_attribute *attr, char *buffer)
748 {
749 return snprintf(buffer, PAGE_SIZE, "%s\n", DRV_VERSION);
750 }
751
752 static DEVICE_ATTR(driver_version,
753 S_IRUGO,
754 mvs_show_driver_version,
755 NULL);
756
757 static ssize_t
758 mvs_store_interrupt_coalescing(struct device *cdev,
759 struct device_attribute *attr,
760 const char *buffer, size_t size)
761 {
762 int val = 0;
763 struct mvs_info *mvi = NULL;
764 struct Scsi_Host *shost = class_to_shost(cdev);
765 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
766 u8 i, core_nr;
767 if (buffer == NULL)
768 return size;
769
770 if (sscanf(buffer, "%d", &val) != 1)
771 return -EINVAL;
772
773 if (val >= 0x10000) {
774 mv_dprintk("interrupt coalescing timer %d us is"
775 "too long\n", val);
776 return strlen(buffer);
777 }
778
779 interrupt_coalescing = val;
780
781 core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
782 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
783
784 if (unlikely(!mvi))
785 return -EINVAL;
786
787 for (i = 0; i < core_nr; i++) {
788 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
789 if (MVS_CHIP_DISP->tune_interrupt)
790 MVS_CHIP_DISP->tune_interrupt(mvi,
791 interrupt_coalescing);
792 }
793 mv_dprintk("set interrupt coalescing time to %d us\n",
794 interrupt_coalescing);
795 return strlen(buffer);
796 }
797
798 static ssize_t mvs_show_interrupt_coalescing(struct device *cdev,
799 struct device_attribute *attr, char *buffer)
800 {
801 return snprintf(buffer, PAGE_SIZE, "%d\n", interrupt_coalescing);
802 }
803
804 static DEVICE_ATTR(interrupt_coalescing,
805 S_IRUGO|S_IWUSR,
806 mvs_show_interrupt_coalescing,
807 mvs_store_interrupt_coalescing);
808
809 /* task handler */
810 struct task_struct *mvs_th;
811 static int __init mvs_init(void)
812 {
813 int rc;
814 mvs_stt = sas_domain_attach_transport(&mvs_transport_ops);
815 if (!mvs_stt)
816 return -ENOMEM;
817
818 rc = pci_register_driver(&mvs_pci_driver);
819 if (rc)
820 goto err_out;
821
822 return 0;
823
824 err_out:
825 sas_release_transport(mvs_stt);
826 return rc;
827 }
828
829 static void __exit mvs_exit(void)
830 {
831 pci_unregister_driver(&mvs_pci_driver);
832 sas_release_transport(mvs_stt);
833 }
834
835 struct device_attribute *mvst_host_attrs[] = {
836 &dev_attr_driver_version,
837 &dev_attr_interrupt_coalescing,
838 NULL,
839 };
840
841 module_init(mvs_init);
842 module_exit(mvs_exit);
843
844 MODULE_AUTHOR("Jeff Garzik <jgarzik@pobox.com>");
845 MODULE_DESCRIPTION("Marvell 88SE6440 SAS/SATA controller driver");
846 MODULE_VERSION(DRV_VERSION);
847 MODULE_LICENSE("GPL");
848 #ifdef CONFIG_PCI
849 MODULE_DEVICE_TABLE(pci, mvs_pci_table);
850 #endif
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