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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
[linux.git] / drivers / scsi / mvsas / mv_init.c
blob020037cbf0d91dd28c9e95cf702d508493564391
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Marvell 88SE64xx/88SE94xx pci init
4 *
5 * Copyright 2007 Red Hat, Inc.
6 * Copyright 2008 Marvell. <kewei@marvell.com>
7 * Copyright 2009-2011 Marvell. <yuxiangl@marvell.com>
8 */
9
10
11 #include "mv_sas.h"
12
13 int interrupt_coalescing = 0x80;
14
15 static struct scsi_transport_template *mvs_stt;
16 static const struct mvs_chip_info mvs_chips[] = {
17 [chip_6320] = { 1, 2, 0x400, 17, 16, 6, 9, &mvs_64xx_dispatch, },
18 [chip_6440] = { 1, 4, 0x400, 17, 16, 6, 9, &mvs_64xx_dispatch, },
19 [chip_6485] = { 1, 8, 0x800, 33, 32, 6, 10, &mvs_64xx_dispatch, },
20 [chip_9180] = { 2, 4, 0x800, 17, 64, 8, 9, &mvs_94xx_dispatch, },
21 [chip_9480] = { 2, 4, 0x800, 17, 64, 8, 9, &mvs_94xx_dispatch, },
22 [chip_9445] = { 1, 4, 0x800, 17, 64, 8, 11, &mvs_94xx_dispatch, },
23 [chip_9485] = { 2, 4, 0x800, 17, 64, 8, 11, &mvs_94xx_dispatch, },
24 [chip_1300] = { 1, 4, 0x400, 17, 16, 6, 9, &mvs_64xx_dispatch, },
25 [chip_1320] = { 2, 4, 0x800, 17, 64, 8, 9, &mvs_94xx_dispatch, },
26 };
27
28 static const struct attribute_group *mvst_host_groups[];
29 static const struct attribute_group *mvst_sdev_groups[];
30
31 #define SOC_SAS_NUM 2
32
33 static const struct scsi_host_template mvs_sht = {
34 LIBSAS_SHT_BASE
35 .scan_finished = mvs_scan_finished,
36 .scan_start = mvs_scan_start,
37 .can_queue = 1,
38 .sg_tablesize = SG_ALL,
39 .shost_groups = mvst_host_groups,
40 .sdev_groups = mvst_sdev_groups,
41 .track_queue_depth = 1,
42 };
43
44 static struct sas_domain_function_template mvs_transport_ops = {
45 .lldd_dev_found = mvs_dev_found,
46 .lldd_dev_gone = mvs_dev_gone,
47 .lldd_execute_task = mvs_queue_command,
48 .lldd_control_phy = mvs_phy_control,
49
50 .lldd_abort_task = mvs_abort_task,
51 .lldd_abort_task_set = sas_abort_task_set,
52 .lldd_clear_task_set = sas_clear_task_set,
53 .lldd_I_T_nexus_reset = mvs_I_T_nexus_reset,
54 .lldd_lu_reset = mvs_lu_reset,
55 .lldd_query_task = mvs_query_task,
56 .lldd_port_formed = mvs_port_formed,
57 .lldd_port_deformed = mvs_port_deformed,
58
59 .lldd_write_gpio = mvs_gpio_write,
60
61 };
62
63 static void mvs_phy_init(struct mvs_info *mvi, int phy_id)
64 {
65 struct mvs_phy *phy = &mvi->phy[phy_id];
66 struct asd_sas_phy *sas_phy = &phy->sas_phy;
67
68 phy->mvi = mvi;
69 phy->port = NULL;
70 timer_setup(&phy->timer, NULL, 0);
71 sas_phy->enabled = (phy_id < mvi->chip->n_phy) ? 1 : 0;
72 sas_phy->iproto = SAS_PROTOCOL_ALL;
73 sas_phy->tproto = 0;
74 sas_phy->role = PHY_ROLE_INITIATOR;
75 sas_phy->oob_mode = OOB_NOT_CONNECTED;
76 sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN;
77
78 sas_phy->id = phy_id;
79 sas_phy->sas_addr = &mvi->sas_addr[0];
80 sas_phy->frame_rcvd = &phy->frame_rcvd[0];
81 sas_phy->ha = (struct sas_ha_struct *)mvi->shost->hostdata;
82 sas_phy->lldd_phy = phy;
83 }
84
85 static void mvs_free(struct mvs_info *mvi)
86 {
87 struct mvs_wq *mwq;
88 int slot_nr;
89
90 if (!mvi)
91 return;
92
93 if (mvi->flags & MVF_FLAG_SOC)
94 slot_nr = MVS_SOC_SLOTS;
95 else
96 slot_nr = MVS_CHIP_SLOT_SZ;
97
98 dma_pool_destroy(mvi->dma_pool);
99
100 if (mvi->tx)
101 dma_free_coherent(mvi->dev,
102 sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ,
103 mvi->tx, mvi->tx_dma);
104 if (mvi->rx_fis)
105 dma_free_coherent(mvi->dev, MVS_RX_FISL_SZ,
106 mvi->rx_fis, mvi->rx_fis_dma);
107 if (mvi->rx)
108 dma_free_coherent(mvi->dev,
109 sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1),
110 mvi->rx, mvi->rx_dma);
111 if (mvi->slot)
112 dma_free_coherent(mvi->dev,
113 sizeof(*mvi->slot) * slot_nr,
114 mvi->slot, mvi->slot_dma);
115
116 if (mvi->bulk_buffer)
117 dma_free_coherent(mvi->dev, TRASH_BUCKET_SIZE,
118 mvi->bulk_buffer, mvi->bulk_buffer_dma);
119 if (mvi->bulk_buffer1)
120 dma_free_coherent(mvi->dev, TRASH_BUCKET_SIZE,
121 mvi->bulk_buffer1, mvi->bulk_buffer_dma1);
122
123 MVS_CHIP_DISP->chip_iounmap(mvi);
124 if (mvi->shost)
125 scsi_host_put(mvi->shost);
126 list_for_each_entry(mwq, &mvi->wq_list, entry)
127 cancel_delayed_work(&mwq->work_q);
128 kfree(mvi->rsvd_tags);
129 kfree(mvi);
130 }
131
132 #ifdef CONFIG_SCSI_MVSAS_TASKLET
133 static void mvs_tasklet(unsigned long opaque)
134 {
135 u32 stat;
136 u16 core_nr, i = 0;
137
138 struct mvs_info *mvi;
139 struct sas_ha_struct *sha = (struct sas_ha_struct *)opaque;
140
141 core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
142 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
143
144 if (unlikely(!mvi))
145 BUG_ON(1);
146
147 stat = MVS_CHIP_DISP->isr_status(mvi, mvi->pdev->irq);
148 if (!stat)
149 goto out;
150
151 for (i = 0; i < core_nr; i++) {
152 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
153 MVS_CHIP_DISP->isr(mvi, mvi->pdev->irq, stat);
154 }
155 out:
156 MVS_CHIP_DISP->interrupt_enable(mvi);
157
158 }
159 #endif
160
161 static irqreturn_t mvs_interrupt(int irq, void *opaque)
162 {
163 u32 stat;
164 struct mvs_info *mvi;
165 struct sas_ha_struct *sha = opaque;
166 #ifndef CONFIG_SCSI_MVSAS_TASKLET
167 u32 i;
168 u32 core_nr;
169
170 core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
171 #endif
172
173 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
174
175 if (unlikely(!mvi))
176 return IRQ_NONE;
177 #ifdef CONFIG_SCSI_MVSAS_TASKLET
178 MVS_CHIP_DISP->interrupt_disable(mvi);
179 #endif
180
181 stat = MVS_CHIP_DISP->isr_status(mvi, irq);
182 if (!stat) {
183 #ifdef CONFIG_SCSI_MVSAS_TASKLET
184 MVS_CHIP_DISP->interrupt_enable(mvi);
185 #endif
186 return IRQ_NONE;
187 }
188
189 #ifdef CONFIG_SCSI_MVSAS_TASKLET
190 tasklet_schedule(&((struct mvs_prv_info *)sha->lldd_ha)->mv_tasklet);
191 #else
192 for (i = 0; i < core_nr; i++) {
193 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
194 MVS_CHIP_DISP->isr(mvi, irq, stat);
195 }
196 #endif
197 return IRQ_HANDLED;
198 }
199
200 static int mvs_alloc(struct mvs_info *mvi, struct Scsi_Host *shost)
201 {
202 int i = 0, slot_nr;
203 char pool_name[32];
204
205 if (mvi->flags & MVF_FLAG_SOC)
206 slot_nr = MVS_SOC_SLOTS;
207 else
208 slot_nr = MVS_CHIP_SLOT_SZ;
209
210 spin_lock_init(&mvi->lock);
211 for (i = 0; i < mvi->chip->n_phy; i++) {
212 mvs_phy_init(mvi, i);
213 mvi->port[i].wide_port_phymap = 0;
214 mvi->port[i].port_attached = 0;
215 INIT_LIST_HEAD(&mvi->port[i].list);
216 }
217 for (i = 0; i < MVS_MAX_DEVICES; i++) {
218 mvi->devices[i].taskfileset = MVS_ID_NOT_MAPPED;
219 mvi->devices[i].dev_type = SAS_PHY_UNUSED;
220 mvi->devices[i].device_id = i;
221 mvi->devices[i].dev_status = MVS_DEV_NORMAL;
222 }
223
224 /*
225 * alloc and init our DMA areas
226 */
227 mvi->tx = dma_alloc_coherent(mvi->dev,
228 sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ,
229 &mvi->tx_dma, GFP_KERNEL);
230 if (!mvi->tx)
231 goto err_out;
232 mvi->rx_fis = dma_alloc_coherent(mvi->dev, MVS_RX_FISL_SZ,
233 &mvi->rx_fis_dma, GFP_KERNEL);
234 if (!mvi->rx_fis)
235 goto err_out;
236
237 mvi->rx = dma_alloc_coherent(mvi->dev,
238 sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1),
239 &mvi->rx_dma, GFP_KERNEL);
240 if (!mvi->rx)
241 goto err_out;
242 mvi->rx[0] = cpu_to_le32(0xfff);
243 mvi->rx_cons = 0xfff;
244
245 mvi->slot = dma_alloc_coherent(mvi->dev,
246 sizeof(*mvi->slot) * slot_nr,
247 &mvi->slot_dma, GFP_KERNEL);
248 if (!mvi->slot)
249 goto err_out;
250
251 mvi->bulk_buffer = dma_alloc_coherent(mvi->dev,
252 TRASH_BUCKET_SIZE,
253 &mvi->bulk_buffer_dma, GFP_KERNEL);
254 if (!mvi->bulk_buffer)
255 goto err_out;
256
257 mvi->bulk_buffer1 = dma_alloc_coherent(mvi->dev,
258 TRASH_BUCKET_SIZE,
259 &mvi->bulk_buffer_dma1, GFP_KERNEL);
260 if (!mvi->bulk_buffer1)
261 goto err_out;
262
263 sprintf(pool_name, "%s%d", "mvs_dma_pool", mvi->id);
264 mvi->dma_pool = dma_pool_create(pool_name, &mvi->pdev->dev,
265 MVS_SLOT_BUF_SZ, 16, 0);
266 if (!mvi->dma_pool) {
267 printk(KERN_DEBUG "failed to create dma pool %s.\n", pool_name);
268 goto err_out;
269 }
270
271 return 0;
272 err_out:
273 return 1;
274 }
275
276
277 int mvs_ioremap(struct mvs_info *mvi, int bar, int bar_ex)
278 {
279 unsigned long res_start, res_len, res_flag_ex = 0;
280 struct pci_dev *pdev = mvi->pdev;
281 if (bar_ex != -1) {
282 /*
283 * ioremap main and peripheral registers
284 */
285 res_start = pci_resource_start(pdev, bar_ex);
286 res_len = pci_resource_len(pdev, bar_ex);
287 if (!res_start || !res_len)
288 goto err_out;
289
290 res_flag_ex = pci_resource_flags(pdev, bar_ex);
291 if (res_flag_ex & IORESOURCE_MEM)
292 mvi->regs_ex = ioremap(res_start, res_len);
293 else
294 mvi->regs_ex = (void *)res_start;
295 if (!mvi->regs_ex)
296 goto err_out;
297 }
298
299 res_start = pci_resource_start(pdev, bar);
300 res_len = pci_resource_len(pdev, bar);
301 if (!res_start || !res_len) {
302 iounmap(mvi->regs_ex);
303 mvi->regs_ex = NULL;
304 goto err_out;
305 }
306
307 mvi->regs = ioremap(res_start, res_len);
308
309 if (!mvi->regs) {
310 if (mvi->regs_ex && (res_flag_ex & IORESOURCE_MEM))
311 iounmap(mvi->regs_ex);
312 mvi->regs_ex = NULL;
313 goto err_out;
314 }
315
316 return 0;
317 err_out:
318 return -1;
319 }
320
321 void mvs_iounmap(void __iomem *regs)
322 {
323 iounmap(regs);
324 }
325
326 static struct mvs_info *mvs_pci_alloc(struct pci_dev *pdev,
327 const struct pci_device_id *ent,
328 struct Scsi_Host *shost, unsigned int id)
329 {
330 struct mvs_info *mvi = NULL;
331 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
332
333 mvi = kzalloc(sizeof(*mvi) +
334 (1L << mvs_chips[ent->driver_data].slot_width) *
335 sizeof(struct mvs_slot_info), GFP_KERNEL);
336 if (!mvi)
337 return NULL;
338
339 mvi->pdev = pdev;
340 mvi->dev = &pdev->dev;
341 mvi->chip_id = ent->driver_data;
342 mvi->chip = &mvs_chips[mvi->chip_id];
343 INIT_LIST_HEAD(&mvi->wq_list);
344
345 ((struct mvs_prv_info *)sha->lldd_ha)->mvi[id] = mvi;
346 ((struct mvs_prv_info *)sha->lldd_ha)->n_phy = mvi->chip->n_phy;
347
348 mvi->id = id;
349 mvi->sas = sha;
350 mvi->shost = shost;
351
352 mvi->rsvd_tags = bitmap_zalloc(MVS_RSVD_SLOTS, GFP_KERNEL);
353 if (!mvi->rsvd_tags)
354 goto err_out;
355
356 if (MVS_CHIP_DISP->chip_ioremap(mvi))
357 goto err_out;
358 if (!mvs_alloc(mvi, shost))
359 return mvi;
360 err_out:
361 mvs_free(mvi);
362 return NULL;
363 }
364
365 static int pci_go_64(struct pci_dev *pdev)
366 {
367 int rc;
368
369 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
370 if (rc) {
371 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
372 if (rc) {
373 dev_printk(KERN_ERR, &pdev->dev,
374 "32-bit DMA enable failed\n");
375 return rc;
376 }
377 }
378
379 return rc;
380 }
381
382 static int mvs_prep_sas_ha_init(struct Scsi_Host *shost,
383 const struct mvs_chip_info *chip_info)
384 {
385 int phy_nr, port_nr; unsigned short core_nr;
386 struct asd_sas_phy **arr_phy;
387 struct asd_sas_port **arr_port;
388 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
389
390 core_nr = chip_info->n_host;
391 phy_nr = core_nr * chip_info->n_phy;
392 port_nr = phy_nr;
393
394 memset(sha, 0x00, sizeof(struct sas_ha_struct));
395 arr_phy = kcalloc(phy_nr, sizeof(void *), GFP_KERNEL);
396 arr_port = kcalloc(port_nr, sizeof(void *), GFP_KERNEL);
397 if (!arr_phy || !arr_port)
398 goto exit_free;
399
400 sha->sas_phy = arr_phy;
401 sha->sas_port = arr_port;
402 sha->shost = shost;
403
404 sha->lldd_ha = kzalloc(sizeof(struct mvs_prv_info), GFP_KERNEL);
405 if (!sha->lldd_ha)
406 goto exit_free;
407
408 ((struct mvs_prv_info *)sha->lldd_ha)->n_host = core_nr;
409
410 shost->transportt = mvs_stt;
411 shost->max_id = MVS_MAX_DEVICES;
412 shost->max_lun = ~0;
413 shost->max_channel = 1;
414 shost->max_cmd_len = 16;
415
416 return 0;
417 exit_free:
418 kfree(arr_phy);
419 kfree(arr_port);
420 return -1;
421
422 }
423
424 static void mvs_post_sas_ha_init(struct Scsi_Host *shost,
425 const struct mvs_chip_info *chip_info)
426 {
427 int can_queue, i = 0, j = 0;
428 struct mvs_info *mvi = NULL;
429 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
430 unsigned short nr_core = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
431
432 for (j = 0; j < nr_core; j++) {
433 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[j];
434 for (i = 0; i < chip_info->n_phy; i++) {
435 sha->sas_phy[j * chip_info->n_phy + i] =
436 &mvi->phy[i].sas_phy;
437 sha->sas_port[j * chip_info->n_phy + i] =
438 &mvi->port[i].sas_port;
439 }
440 }
441
442 sha->sas_ha_name = DRV_NAME;
443 sha->dev = mvi->dev;
444 sha->sas_addr = &mvi->sas_addr[0];
445
446 sha->num_phys = nr_core * chip_info->n_phy;
447
448 if (mvi->flags & MVF_FLAG_SOC)
449 can_queue = MVS_SOC_CAN_QUEUE;
450 else
451 can_queue = MVS_CHIP_SLOT_SZ;
452
453 can_queue -= MVS_RSVD_SLOTS;
454
455 shost->sg_tablesize = min_t(u16, SG_ALL, MVS_MAX_SG);
456 shost->can_queue = can_queue;
457 mvi->shost->cmd_per_lun = MVS_QUEUE_SIZE;
458 sha->shost = mvi->shost;
459 }
460
461 static void mvs_init_sas_add(struct mvs_info *mvi)
462 {
463 u8 i;
464 for (i = 0; i < mvi->chip->n_phy; i++) {
465 mvi->phy[i].dev_sas_addr = 0x5005043011ab0000ULL;
466 mvi->phy[i].dev_sas_addr =
467 cpu_to_be64((u64)(*(u64 *)&mvi->phy[i].dev_sas_addr));
468 }
469
470 memcpy(mvi->sas_addr, &mvi->phy[0].dev_sas_addr, SAS_ADDR_SIZE);
471 }
472
473 static int mvs_pci_init(struct pci_dev *pdev, const struct pci_device_id *ent)
474 {
475 unsigned int rc, nhost = 0;
476 struct mvs_info *mvi;
477 irq_handler_t irq_handler = mvs_interrupt;
478 struct Scsi_Host *shost = NULL;
479 const struct mvs_chip_info *chip;
480
481 dev_printk(KERN_INFO, &pdev->dev,
482 "mvsas: driver version %s\n", DRV_VERSION);
483 rc = pci_enable_device(pdev);
484 if (rc)
485 goto err_out_enable;
486
487 pci_set_master(pdev);
488
489 rc = pci_request_regions(pdev, DRV_NAME);
490 if (rc)
491 goto err_out_disable;
492
493 rc = pci_go_64(pdev);
494 if (rc)
495 goto err_out_regions;
496
497 shost = scsi_host_alloc(&mvs_sht, sizeof(void *));
498 if (!shost) {
499 rc = -ENOMEM;
500 goto err_out_regions;
501 }
502
503 chip = &mvs_chips[ent->driver_data];
504 SHOST_TO_SAS_HA(shost) =
505 kcalloc(1, sizeof(struct sas_ha_struct), GFP_KERNEL);
506 if (!SHOST_TO_SAS_HA(shost)) {
507 scsi_host_put(shost);
508 rc = -ENOMEM;
509 goto err_out_regions;
510 }
511
512 rc = mvs_prep_sas_ha_init(shost, chip);
513 if (rc) {
514 scsi_host_put(shost);
515 rc = -ENOMEM;
516 goto err_out_regions;
517 }
518
519 pci_set_drvdata(pdev, SHOST_TO_SAS_HA(shost));
520
521 do {
522 mvi = mvs_pci_alloc(pdev, ent, shost, nhost);
523 if (!mvi) {
524 rc = -ENOMEM;
525 goto err_out_regions;
526 }
527
528 memset(&mvi->hba_info_param, 0xFF,
529 sizeof(struct hba_info_page));
530
531 mvs_init_sas_add(mvi);
532
533 mvi->instance = nhost;
534 rc = MVS_CHIP_DISP->chip_init(mvi);
535 if (rc) {
536 mvs_free(mvi);
537 goto err_out_regions;
538 }
539 nhost++;
540 } while (nhost < chip->n_host);
541 #ifdef CONFIG_SCSI_MVSAS_TASKLET
542 {
543 struct mvs_prv_info *mpi = SHOST_TO_SAS_HA(shost)->lldd_ha;
544
545 tasklet_init(&(mpi->mv_tasklet), mvs_tasklet,
546 (unsigned long)SHOST_TO_SAS_HA(shost));
547 }
548 #endif
549
550 mvs_post_sas_ha_init(shost, chip);
551
552 rc = scsi_add_host(shost, &pdev->dev);
553 if (rc)
554 goto err_out_shost;
555
556 rc = sas_register_ha(SHOST_TO_SAS_HA(shost));
557 if (rc)
558 goto err_out_shost;
559 rc = request_irq(pdev->irq, irq_handler, IRQF_SHARED,
560 DRV_NAME, SHOST_TO_SAS_HA(shost));
561 if (rc)
562 goto err_not_sas;
563
564 MVS_CHIP_DISP->interrupt_enable(mvi);
565
566 scsi_scan_host(mvi->shost);
567
568 return 0;
569
570 err_not_sas:
571 sas_unregister_ha(SHOST_TO_SAS_HA(shost));
572 err_out_shost:
573 scsi_remove_host(mvi->shost);
574 err_out_regions:
575 pci_release_regions(pdev);
576 err_out_disable:
577 pci_disable_device(pdev);
578 err_out_enable:
579 return rc;
580 }
581
582 static void mvs_pci_remove(struct pci_dev *pdev)
583 {
584 unsigned short core_nr, i = 0;
585 struct sas_ha_struct *sha = pci_get_drvdata(pdev);
586 struct mvs_info *mvi = NULL;
587
588 core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
589 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
590
591 #ifdef CONFIG_SCSI_MVSAS_TASKLET
592 tasklet_kill(&((struct mvs_prv_info *)sha->lldd_ha)->mv_tasklet);
593 #endif
594
595 sas_unregister_ha(sha);
596 sas_remove_host(mvi->shost);
597
598 MVS_CHIP_DISP->interrupt_disable(mvi);
599 free_irq(mvi->pdev->irq, sha);
600 for (i = 0; i < core_nr; i++) {
601 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
602 mvs_free(mvi);
603 }
604 kfree(sha->sas_phy);
605 kfree(sha->sas_port);
606 kfree(sha);
607 pci_release_regions(pdev);
608 pci_disable_device(pdev);
609 return;
610 }
611
612 static struct pci_device_id mvs_pci_table[] = {
613 { PCI_VDEVICE(MARVELL, 0x6320), chip_6320 },
614 { PCI_VDEVICE(MARVELL, 0x6340), chip_6440 },
615 {
616 .vendor = PCI_VENDOR_ID_MARVELL,
617 .device = 0x6440,
618 .subvendor = PCI_ANY_ID,
619 .subdevice = 0x6480,
620 .class = 0,
621 .class_mask = 0,
622 .driver_data = chip_6485,
623 },
624 { PCI_VDEVICE(MARVELL, 0x6440), chip_6440 },
625 { PCI_VDEVICE(MARVELL, 0x6485), chip_6485 },
626 { PCI_VDEVICE(MARVELL, 0x9480), chip_9480 },
627 { PCI_VDEVICE(MARVELL, 0x9180), chip_9180 },
628 { PCI_VDEVICE(ARECA, PCI_DEVICE_ID_ARECA_1300), chip_1300 },
629 { PCI_VDEVICE(ARECA, PCI_DEVICE_ID_ARECA_1320), chip_1320 },
630 { PCI_VDEVICE(ADAPTEC2, 0x0450), chip_6440 },
631 { PCI_VDEVICE(TTI, 0x2640), chip_6440 },
632 { PCI_VDEVICE(TTI, 0x2710), chip_9480 },
633 { PCI_VDEVICE(TTI, 0x2720), chip_9480 },
634 { PCI_VDEVICE(TTI, 0x2721), chip_9480 },
635 { PCI_VDEVICE(TTI, 0x2722), chip_9480 },
636 { PCI_VDEVICE(TTI, 0x2740), chip_9480 },
637 { PCI_VDEVICE(TTI, 0x2744), chip_9480 },
638 { PCI_VDEVICE(TTI, 0x2760), chip_9480 },
639 {
640 .vendor = PCI_VENDOR_ID_MARVELL_EXT,
641 .device = 0x9480,
642 .subvendor = PCI_ANY_ID,
643 .subdevice = 0x9480,
644 .class = 0,
645 .class_mask = 0,
646 .driver_data = chip_9480,
647 },
648 {
649 .vendor = PCI_VENDOR_ID_MARVELL_EXT,
650 .device = 0x9445,
651 .subvendor = PCI_ANY_ID,
652 .subdevice = 0x9480,
653 .class = 0,
654 .class_mask = 0,
655 .driver_data = chip_9445,
656 },
657 { PCI_VDEVICE(MARVELL_EXT, 0x9485), chip_9485 }, /* Marvell 9480/9485 (any vendor/model) */
658 { PCI_VDEVICE(OCZ, 0x1021), chip_9485}, /* OCZ RevoDrive3 */
659 { PCI_VDEVICE(OCZ, 0x1022), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
660 { PCI_VDEVICE(OCZ, 0x1040), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
661 { PCI_VDEVICE(OCZ, 0x1041), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
662 { PCI_VDEVICE(OCZ, 0x1042), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
663 { PCI_VDEVICE(OCZ, 0x1043), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
664 { PCI_VDEVICE(OCZ, 0x1044), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
665 { PCI_VDEVICE(OCZ, 0x1080), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
666 { PCI_VDEVICE(OCZ, 0x1083), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
667 { PCI_VDEVICE(OCZ, 0x1084), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
668
669 { } /* terminate list */
670 };
671
672 static struct pci_driver mvs_pci_driver = {
673 .name = DRV_NAME,
674 .id_table = mvs_pci_table,
675 .probe = mvs_pci_init,
676 .remove = mvs_pci_remove,
677 };
678
679 static DEVICE_STRING_ATTR_RO(driver_version, 0444, DRV_VERSION);
680
681 static ssize_t interrupt_coalescing_store(struct device *cdev,
682 struct device_attribute *attr,
683 const char *buffer, size_t size)
684 {
685 unsigned int val = 0;
686 struct mvs_info *mvi = NULL;
687 struct Scsi_Host *shost = class_to_shost(cdev);
688 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
689 u8 i, core_nr;
690 if (buffer == NULL)
691 return size;
692
693 if (sscanf(buffer, "%u", &val) != 1)
694 return -EINVAL;
695
696 if (val >= 0x10000) {
697 mv_dprintk("interrupt coalescing timer %d us is"
698 "too long\n", val);
699 return strlen(buffer);
700 }
701
702 interrupt_coalescing = val;
703
704 core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
705 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
706
707 if (unlikely(!mvi))
708 return -EINVAL;
709
710 for (i = 0; i < core_nr; i++) {
711 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
712 if (MVS_CHIP_DISP->tune_interrupt)
713 MVS_CHIP_DISP->tune_interrupt(mvi,
714 interrupt_coalescing);
715 }
716 mv_dprintk("set interrupt coalescing time to %d us\n",
717 interrupt_coalescing);
718 return strlen(buffer);
719 }
720
721 static ssize_t interrupt_coalescing_show(struct device *cdev,
722 struct device_attribute *attr, char *buffer)
723 {
724 return sysfs_emit(buffer, "%d\n", interrupt_coalescing);
725 }
726
727 static DEVICE_ATTR_RW(interrupt_coalescing);
728
729 static int __init mvs_init(void)
730 {
731 int rc;
732 mvs_stt = sas_domain_attach_transport(&mvs_transport_ops);
733 if (!mvs_stt)
734 return -ENOMEM;
735
736 rc = pci_register_driver(&mvs_pci_driver);
737 if (rc)
738 goto err_out;
739
740 return 0;
741
742 err_out:
743 sas_release_transport(mvs_stt);
744 return rc;
745 }
746
747 static void __exit mvs_exit(void)
748 {
749 pci_unregister_driver(&mvs_pci_driver);
750 sas_release_transport(mvs_stt);
751 }
752
753 static struct attribute *mvst_host_attrs[] = {
754 &dev_attr_driver_version.attr.attr,
755 &dev_attr_interrupt_coalescing.attr,
756 NULL,
757 };
758
759 ATTRIBUTE_GROUPS(mvst_host);
760
761 static const struct attribute_group *mvst_sdev_groups[] = {
762 &sas_ata_sdev_attr_group,
763 NULL
764 };
765
766 module_init(mvs_init);
767 module_exit(mvs_exit);
768
769 MODULE_AUTHOR("Jeff Garzik <jgarzik@pobox.com>");
770 MODULE_DESCRIPTION("Marvell 88SE6440 SAS/SATA controller driver");
771 MODULE_VERSION(DRV_VERSION);
772 MODULE_LICENSE("GPL");
773 #ifdef CONFIG_PCI
774 MODULE_DEVICE_TABLE(pci, mvs_pci_table);
775 #endif
Linux Kernel