xref: /openbmc/linux/drivers/scsi/mvsas/mv_init.c (revision 4dc7ccf7)
1 /*
2  * Marvell 88SE64xx/88SE94xx pci init
3  *
4  * Copyright 2007 Red Hat, Inc.
5  * Copyright 2008 Marvell. <kewei@marvell.com>
6  *
7  * This file is licensed under GPLv2.
8  *
9  * This program is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU General Public License as
11  * published by the Free Software Foundation; version 2 of the
12  * License.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17  * General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, write to the Free Software
21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
22  * USA
23 */
24 
25 
26 #include "mv_sas.h"
27 
28 static struct scsi_transport_template *mvs_stt;
29 static const struct mvs_chip_info mvs_chips[] = {
30 	[chip_6320] =	{ 1, 2, 0x400, 17, 16,  9, &mvs_64xx_dispatch, },
31 	[chip_6440] =	{ 1, 4, 0x400, 17, 16,  9, &mvs_64xx_dispatch, },
32 	[chip_6485] =	{ 1, 8, 0x800, 33, 32, 10, &mvs_64xx_dispatch, },
33 	[chip_9180] =	{ 2, 4, 0x800, 17, 64,  9, &mvs_94xx_dispatch, },
34 	[chip_9480] =	{ 2, 4, 0x800, 17, 64,  9, &mvs_94xx_dispatch, },
35 	[chip_1300] =	{ 1, 4, 0x400, 17, 16,  9, &mvs_64xx_dispatch, },
36 	[chip_1320] =	{ 2, 4, 0x800, 17, 64,  9, &mvs_94xx_dispatch, },
37 };
38 
39 #define SOC_SAS_NUM 2
40 
41 static struct scsi_host_template mvs_sht = {
42 	.module			= THIS_MODULE,
43 	.name			= DRV_NAME,
44 	.queuecommand		= sas_queuecommand,
45 	.target_alloc		= sas_target_alloc,
46 	.slave_configure	= mvs_slave_configure,
47 	.slave_destroy		= sas_slave_destroy,
48 	.scan_finished		= mvs_scan_finished,
49 	.scan_start		= mvs_scan_start,
50 	.change_queue_depth	= sas_change_queue_depth,
51 	.change_queue_type	= sas_change_queue_type,
52 	.bios_param		= sas_bios_param,
53 	.can_queue		= 1,
54 	.cmd_per_lun		= 1,
55 	.this_id		= -1,
56 	.sg_tablesize		= SG_ALL,
57 	.max_sectors		= SCSI_DEFAULT_MAX_SECTORS,
58 	.use_clustering		= ENABLE_CLUSTERING,
59 	.eh_device_reset_handler	= sas_eh_device_reset_handler,
60 	.eh_bus_reset_handler	= sas_eh_bus_reset_handler,
61 	.slave_alloc		= mvs_slave_alloc,
62 	.target_destroy		= sas_target_destroy,
63 	.ioctl			= sas_ioctl,
64 };
65 
66 static struct sas_domain_function_template mvs_transport_ops = {
67 	.lldd_dev_found 	= mvs_dev_found,
68 	.lldd_dev_gone	= mvs_dev_gone,
69 
70 	.lldd_execute_task	= mvs_queue_command,
71 	.lldd_control_phy	= mvs_phy_control,
72 
73 	.lldd_abort_task	= mvs_abort_task,
74 	.lldd_abort_task_set    = mvs_abort_task_set,
75 	.lldd_clear_aca         = mvs_clear_aca,
76        .lldd_clear_task_set    = mvs_clear_task_set,
77 	.lldd_I_T_nexus_reset	= mvs_I_T_nexus_reset,
78 	.lldd_lu_reset 		= mvs_lu_reset,
79 	.lldd_query_task	= mvs_query_task,
80 
81 	.lldd_port_formed	= mvs_port_formed,
82 	.lldd_port_deformed     = mvs_port_deformed,
83 
84 };
85 
86 static void __devinit mvs_phy_init(struct mvs_info *mvi, int phy_id)
87 {
88 	struct mvs_phy *phy = &mvi->phy[phy_id];
89 	struct asd_sas_phy *sas_phy = &phy->sas_phy;
90 
91 	phy->mvi = mvi;
92 	init_timer(&phy->timer);
93 	sas_phy->enabled = (phy_id < mvi->chip->n_phy) ? 1 : 0;
94 	sas_phy->class = SAS;
95 	sas_phy->iproto = SAS_PROTOCOL_ALL;
96 	sas_phy->tproto = 0;
97 	sas_phy->type = PHY_TYPE_PHYSICAL;
98 	sas_phy->role = PHY_ROLE_INITIATOR;
99 	sas_phy->oob_mode = OOB_NOT_CONNECTED;
100 	sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN;
101 
102 	sas_phy->id = phy_id;
103 	sas_phy->sas_addr = &mvi->sas_addr[0];
104 	sas_phy->frame_rcvd = &phy->frame_rcvd[0];
105 	sas_phy->ha = (struct sas_ha_struct *)mvi->shost->hostdata;
106 	sas_phy->lldd_phy = phy;
107 }
108 
109 static void mvs_free(struct mvs_info *mvi)
110 {
111 	int i;
112 	struct mvs_wq *mwq;
113 	int slot_nr;
114 
115 	if (!mvi)
116 		return;
117 
118 	if (mvi->flags & MVF_FLAG_SOC)
119 		slot_nr = MVS_SOC_SLOTS;
120 	else
121 		slot_nr = MVS_SLOTS;
122 
123 	for (i = 0; i < mvi->tags_num; i++) {
124 		struct mvs_slot_info *slot = &mvi->slot_info[i];
125 		if (slot->buf)
126 			dma_free_coherent(mvi->dev, MVS_SLOT_BUF_SZ,
127 					  slot->buf, slot->buf_dma);
128 	}
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 #ifndef DISABLE_HOTPLUG_DMA_FIX
146 	if (mvi->bulk_buffer)
147 		dma_free_coherent(mvi->dev, TRASH_BUCKET_SIZE,
148 				  mvi->bulk_buffer, mvi->bulk_buffer_dma);
149 #endif
150 
151 	MVS_CHIP_DISP->chip_iounmap(mvi);
152 	if (mvi->shost)
153 		scsi_host_put(mvi->shost);
154 	list_for_each_entry(mwq, &mvi->wq_list, entry)
155 		cancel_delayed_work(&mwq->work_q);
156 	kfree(mvi);
157 }
158 
159 #ifdef MVS_USE_TASKLET
160 struct tasklet_struct	mv_tasklet;
161 static void mvs_tasklet(unsigned long opaque)
162 {
163 	unsigned long flags;
164 	u32 stat;
165 	u16 core_nr, i = 0;
166 
167 	struct mvs_info *mvi;
168 	struct sas_ha_struct *sha = (struct sas_ha_struct *)opaque;
169 
170 	core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
171 	mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
172 
173 	if (unlikely(!mvi))
174 		BUG_ON(1);
175 
176 	for (i = 0; i < core_nr; i++) {
177 		mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
178 		stat = MVS_CHIP_DISP->isr_status(mvi, mvi->irq);
179 		if (stat)
180 			MVS_CHIP_DISP->isr(mvi, mvi->irq, stat);
181 	}
182 
183 }
184 #endif
185 
186 static irqreturn_t mvs_interrupt(int irq, void *opaque)
187 {
188 	u32 core_nr, i = 0;
189 	u32 stat;
190 	struct mvs_info *mvi;
191 	struct sas_ha_struct *sha = opaque;
192 
193 	core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
194 	mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
195 
196 	if (unlikely(!mvi))
197 		return IRQ_NONE;
198 
199 	stat = MVS_CHIP_DISP->isr_status(mvi, irq);
200 	if (!stat)
201 		return IRQ_NONE;
202 
203 #ifdef MVS_USE_TASKLET
204 	tasklet_schedule(&mv_tasklet);
205 #else
206 	for (i = 0; i < core_nr; i++) {
207 		mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
208 		MVS_CHIP_DISP->isr(mvi, irq, stat);
209 	}
210 #endif
211 	return IRQ_HANDLED;
212 }
213 
214 static int __devinit mvs_alloc(struct mvs_info *mvi, struct Scsi_Host *shost)
215 {
216 	int i, slot_nr;
217 
218 	if (mvi->flags & MVF_FLAG_SOC)
219 		slot_nr = MVS_SOC_SLOTS;
220 	else
221 		slot_nr = MVS_SLOTS;
222 
223 	spin_lock_init(&mvi->lock);
224 	for (i = 0; i < mvi->chip->n_phy; i++) {
225 		mvs_phy_init(mvi, i);
226 		mvi->port[i].wide_port_phymap = 0;
227 		mvi->port[i].port_attached = 0;
228 		INIT_LIST_HEAD(&mvi->port[i].list);
229 	}
230 	for (i = 0; i < MVS_MAX_DEVICES; i++) {
231 		mvi->devices[i].taskfileset = MVS_ID_NOT_MAPPED;
232 		mvi->devices[i].dev_type = NO_DEVICE;
233 		mvi->devices[i].device_id = i;
234 		mvi->devices[i].dev_status = MVS_DEV_NORMAL;
235 	}
236 
237 	/*
238 	 * alloc and init our DMA areas
239 	 */
240 	mvi->tx = dma_alloc_coherent(mvi->dev,
241 				     sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ,
242 				     &mvi->tx_dma, GFP_KERNEL);
243 	if (!mvi->tx)
244 		goto err_out;
245 	memset(mvi->tx, 0, sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ);
246 	mvi->rx_fis = dma_alloc_coherent(mvi->dev, MVS_RX_FISL_SZ,
247 					 &mvi->rx_fis_dma, GFP_KERNEL);
248 	if (!mvi->rx_fis)
249 		goto err_out;
250 	memset(mvi->rx_fis, 0, MVS_RX_FISL_SZ);
251 
252 	mvi->rx = dma_alloc_coherent(mvi->dev,
253 				     sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1),
254 				     &mvi->rx_dma, GFP_KERNEL);
255 	if (!mvi->rx)
256 		goto err_out;
257 	memset(mvi->rx, 0, sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1));
258 	mvi->rx[0] = cpu_to_le32(0xfff);
259 	mvi->rx_cons = 0xfff;
260 
261 	mvi->slot = dma_alloc_coherent(mvi->dev,
262 				       sizeof(*mvi->slot) * slot_nr,
263 				       &mvi->slot_dma, GFP_KERNEL);
264 	if (!mvi->slot)
265 		goto err_out;
266 	memset(mvi->slot, 0, sizeof(*mvi->slot) * slot_nr);
267 
268 #ifndef DISABLE_HOTPLUG_DMA_FIX
269 	mvi->bulk_buffer = dma_alloc_coherent(mvi->dev,
270 				       TRASH_BUCKET_SIZE,
271 				       &mvi->bulk_buffer_dma, GFP_KERNEL);
272 	if (!mvi->bulk_buffer)
273 		goto err_out;
274 #endif
275 	for (i = 0; i < slot_nr; i++) {
276 		struct mvs_slot_info *slot = &mvi->slot_info[i];
277 
278 		slot->buf = dma_alloc_coherent(mvi->dev, MVS_SLOT_BUF_SZ,
279 					       &slot->buf_dma, GFP_KERNEL);
280 		if (!slot->buf) {
281 			printk(KERN_DEBUG"failed to allocate slot->buf.\n");
282 			goto err_out;
283 		}
284 		memset(slot->buf, 0, MVS_SLOT_BUF_SZ);
285 		++mvi->tags_num;
286 	}
287 	/* Initialize tags */
288 	mvs_tag_init(mvi);
289 	return 0;
290 err_out:
291 	return 1;
292 }
293 
294 
295 int mvs_ioremap(struct mvs_info *mvi, int bar, int bar_ex)
296 {
297 	unsigned long res_start, res_len, res_flag, res_flag_ex = 0;
298 	struct pci_dev *pdev = mvi->pdev;
299 	if (bar_ex != -1) {
300 		/*
301 		 * ioremap main and peripheral registers
302 		 */
303 		res_start = pci_resource_start(pdev, bar_ex);
304 		res_len = pci_resource_len(pdev, bar_ex);
305 		if (!res_start || !res_len)
306 			goto err_out;
307 
308 		res_flag_ex = pci_resource_flags(pdev, bar_ex);
309 		if (res_flag_ex & IORESOURCE_MEM) {
310 			if (res_flag_ex & IORESOURCE_CACHEABLE)
311 				mvi->regs_ex = ioremap(res_start, res_len);
312 			else
313 				mvi->regs_ex = ioremap_nocache(res_start,
314 						res_len);
315 		} else
316 			mvi->regs_ex = (void *)res_start;
317 		if (!mvi->regs_ex)
318 			goto err_out;
319 	}
320 
321 	res_start = pci_resource_start(pdev, bar);
322 	res_len = pci_resource_len(pdev, bar);
323 	if (!res_start || !res_len)
324 		goto err_out;
325 
326 	res_flag = pci_resource_flags(pdev, bar);
327 	if (res_flag & IORESOURCE_CACHEABLE)
328 		mvi->regs = ioremap(res_start, res_len);
329 	else
330 		mvi->regs = ioremap_nocache(res_start, res_len);
331 
332 	if (!mvi->regs) {
333 		if (mvi->regs_ex && (res_flag_ex & IORESOURCE_MEM))
334 			iounmap(mvi->regs_ex);
335 		mvi->regs_ex = NULL;
336 		goto err_out;
337 	}
338 
339 	return 0;
340 err_out:
341 	return -1;
342 }
343 
344 void mvs_iounmap(void __iomem *regs)
345 {
346 	iounmap(regs);
347 }
348 
349 static struct mvs_info *__devinit mvs_pci_alloc(struct pci_dev *pdev,
350 				const struct pci_device_id *ent,
351 				struct Scsi_Host *shost, unsigned int id)
352 {
353 	struct mvs_info *mvi;
354 	struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
355 
356 	mvi = kzalloc(sizeof(*mvi) + MVS_SLOTS * sizeof(struct mvs_slot_info),
357 			GFP_KERNEL);
358 	if (!mvi)
359 		return NULL;
360 
361 	mvi->pdev = pdev;
362 	mvi->dev = &pdev->dev;
363 	mvi->chip_id = ent->driver_data;
364 	mvi->chip = &mvs_chips[mvi->chip_id];
365 	INIT_LIST_HEAD(&mvi->wq_list);
366 	mvi->irq = pdev->irq;
367 
368 	((struct mvs_prv_info *)sha->lldd_ha)->mvi[id] = mvi;
369 	((struct mvs_prv_info *)sha->lldd_ha)->n_phy = mvi->chip->n_phy;
370 
371 	mvi->id = id;
372 	mvi->sas = sha;
373 	mvi->shost = shost;
374 #ifdef MVS_USE_TASKLET
375 	tasklet_init(&mv_tasklet, mvs_tasklet, (unsigned long)sha);
376 #endif
377 
378 	if (MVS_CHIP_DISP->chip_ioremap(mvi))
379 		goto err_out;
380 	if (!mvs_alloc(mvi, shost))
381 		return mvi;
382 err_out:
383 	mvs_free(mvi);
384 	return NULL;
385 }
386 
387 /* move to PCI layer or libata core? */
388 static int pci_go_64(struct pci_dev *pdev)
389 {
390 	int rc;
391 
392 	if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
393 		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
394 		if (rc) {
395 			rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
396 			if (rc) {
397 				dev_printk(KERN_ERR, &pdev->dev,
398 					   "64-bit DMA enable failed\n");
399 				return rc;
400 			}
401 		}
402 	} else {
403 		rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
404 		if (rc) {
405 			dev_printk(KERN_ERR, &pdev->dev,
406 				   "32-bit DMA enable failed\n");
407 			return rc;
408 		}
409 		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
410 		if (rc) {
411 			dev_printk(KERN_ERR, &pdev->dev,
412 				   "32-bit consistent DMA enable failed\n");
413 			return rc;
414 		}
415 	}
416 
417 	return rc;
418 }
419 
420 static int __devinit mvs_prep_sas_ha_init(struct Scsi_Host *shost,
421 				const struct mvs_chip_info *chip_info)
422 {
423 	int phy_nr, port_nr; unsigned short core_nr;
424 	struct asd_sas_phy **arr_phy;
425 	struct asd_sas_port **arr_port;
426 	struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
427 
428 	core_nr = chip_info->n_host;
429 	phy_nr  = core_nr * chip_info->n_phy;
430 	port_nr = phy_nr;
431 
432 	memset(sha, 0x00, sizeof(struct sas_ha_struct));
433 	arr_phy  = kcalloc(phy_nr, sizeof(void *), GFP_KERNEL);
434 	arr_port = kcalloc(port_nr, sizeof(void *), GFP_KERNEL);
435 	if (!arr_phy || !arr_port)
436 		goto exit_free;
437 
438 	sha->sas_phy = arr_phy;
439 	sha->sas_port = arr_port;
440 
441 	sha->lldd_ha = kzalloc(sizeof(struct mvs_prv_info), GFP_KERNEL);
442 	if (!sha->lldd_ha)
443 		goto exit_free;
444 
445 	((struct mvs_prv_info *)sha->lldd_ha)->n_host = core_nr;
446 
447 	shost->transportt = mvs_stt;
448 	shost->max_id = 128;
449 	shost->max_lun = ~0;
450 	shost->max_channel = 1;
451 	shost->max_cmd_len = 16;
452 
453 	return 0;
454 exit_free:
455 	kfree(arr_phy);
456 	kfree(arr_port);
457 	return -1;
458 
459 }
460 
461 static void  __devinit mvs_post_sas_ha_init(struct Scsi_Host *shost,
462 			const struct mvs_chip_info *chip_info)
463 {
464 	int can_queue, i = 0, j = 0;
465 	struct mvs_info *mvi = NULL;
466 	struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
467 	unsigned short nr_core = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
468 
469 	for (j = 0; j < nr_core; j++) {
470 		mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[j];
471 		for (i = 0; i < chip_info->n_phy; i++) {
472 			sha->sas_phy[j * chip_info->n_phy  + i] =
473 				&mvi->phy[i].sas_phy;
474 			sha->sas_port[j * chip_info->n_phy + i] =
475 				&mvi->port[i].sas_port;
476 		}
477 	}
478 
479 	sha->sas_ha_name = DRV_NAME;
480 	sha->dev = mvi->dev;
481 	sha->lldd_module = THIS_MODULE;
482 	sha->sas_addr = &mvi->sas_addr[0];
483 
484 	sha->num_phys = nr_core * chip_info->n_phy;
485 
486 	sha->lldd_max_execute_num = 1;
487 
488 	if (mvi->flags & MVF_FLAG_SOC)
489 		can_queue = MVS_SOC_CAN_QUEUE;
490 	else
491 		can_queue = MVS_CAN_QUEUE;
492 
493 	sha->lldd_queue_size = can_queue;
494 	shost->can_queue = can_queue;
495 	mvi->shost->cmd_per_lun = MVS_SLOTS/sha->num_phys;
496 	sha->core.shost = mvi->shost;
497 }
498 
499 static void mvs_init_sas_add(struct mvs_info *mvi)
500 {
501 	u8 i;
502 	for (i = 0; i < mvi->chip->n_phy; i++) {
503 		mvi->phy[i].dev_sas_addr = 0x5005043011ab0000ULL;
504 		mvi->phy[i].dev_sas_addr =
505 			cpu_to_be64((u64)(*(u64 *)&mvi->phy[i].dev_sas_addr));
506 	}
507 
508 	memcpy(mvi->sas_addr, &mvi->phy[0].dev_sas_addr, SAS_ADDR_SIZE);
509 }
510 
511 static int __devinit mvs_pci_init(struct pci_dev *pdev,
512 				  const struct pci_device_id *ent)
513 {
514 	unsigned int rc, nhost = 0;
515 	struct mvs_info *mvi;
516 	irq_handler_t irq_handler = mvs_interrupt;
517 	struct Scsi_Host *shost = NULL;
518 	const struct mvs_chip_info *chip;
519 
520 	dev_printk(KERN_INFO, &pdev->dev,
521 		"mvsas: driver version %s\n", DRV_VERSION);
522 	rc = pci_enable_device(pdev);
523 	if (rc)
524 		goto err_out_enable;
525 
526 	pci_set_master(pdev);
527 
528 	rc = pci_request_regions(pdev, DRV_NAME);
529 	if (rc)
530 		goto err_out_disable;
531 
532 	rc = pci_go_64(pdev);
533 	if (rc)
534 		goto err_out_regions;
535 
536 	shost = scsi_host_alloc(&mvs_sht, sizeof(void *));
537 	if (!shost) {
538 		rc = -ENOMEM;
539 		goto err_out_regions;
540 	}
541 
542 	chip = &mvs_chips[ent->driver_data];
543 	SHOST_TO_SAS_HA(shost) =
544 		kcalloc(1, sizeof(struct sas_ha_struct), GFP_KERNEL);
545 	if (!SHOST_TO_SAS_HA(shost)) {
546 		kfree(shost);
547 		rc = -ENOMEM;
548 		goto err_out_regions;
549 	}
550 
551 	rc = mvs_prep_sas_ha_init(shost, chip);
552 	if (rc) {
553 		kfree(shost);
554 		rc = -ENOMEM;
555 		goto err_out_regions;
556 	}
557 
558 	pci_set_drvdata(pdev, SHOST_TO_SAS_HA(shost));
559 
560 	do {
561 		mvi = mvs_pci_alloc(pdev, ent, shost, nhost);
562 		if (!mvi) {
563 			rc = -ENOMEM;
564 			goto err_out_regions;
565 		}
566 
567 		mvs_init_sas_add(mvi);
568 
569 		mvi->instance = nhost;
570 		rc = MVS_CHIP_DISP->chip_init(mvi);
571 		if (rc) {
572 			mvs_free(mvi);
573 			goto err_out_regions;
574 		}
575 		nhost++;
576 	} while (nhost < chip->n_host);
577 
578 	mvs_post_sas_ha_init(shost, chip);
579 
580 	rc = scsi_add_host(shost, &pdev->dev);
581 	if (rc)
582 		goto err_out_shost;
583 
584 	rc = sas_register_ha(SHOST_TO_SAS_HA(shost));
585 	if (rc)
586 		goto err_out_shost;
587 	rc = request_irq(pdev->irq, irq_handler, IRQF_SHARED,
588 		DRV_NAME, SHOST_TO_SAS_HA(shost));
589 	if (rc)
590 		goto err_not_sas;
591 
592 	MVS_CHIP_DISP->interrupt_enable(mvi);
593 
594 	scsi_scan_host(mvi->shost);
595 
596 	return 0;
597 
598 err_not_sas:
599 	sas_unregister_ha(SHOST_TO_SAS_HA(shost));
600 err_out_shost:
601 	scsi_remove_host(mvi->shost);
602 err_out_regions:
603 	pci_release_regions(pdev);
604 err_out_disable:
605 	pci_disable_device(pdev);
606 err_out_enable:
607 	return rc;
608 }
609 
610 static void __devexit mvs_pci_remove(struct pci_dev *pdev)
611 {
612 	unsigned short core_nr, i = 0;
613 	struct sas_ha_struct *sha = pci_get_drvdata(pdev);
614 	struct mvs_info *mvi = NULL;
615 
616 	core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
617 	mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
618 
619 #ifdef MVS_USE_TASKLET
620 	tasklet_kill(&mv_tasklet);
621 #endif
622 
623 	pci_set_drvdata(pdev, NULL);
624 	sas_unregister_ha(sha);
625 	sas_remove_host(mvi->shost);
626 	scsi_remove_host(mvi->shost);
627 
628 	MVS_CHIP_DISP->interrupt_disable(mvi);
629 	free_irq(mvi->irq, sha);
630 	for (i = 0; i < core_nr; i++) {
631 		mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
632 		mvs_free(mvi);
633 	}
634 	kfree(sha->sas_phy);
635 	kfree(sha->sas_port);
636 	kfree(sha);
637 	pci_release_regions(pdev);
638 	pci_disable_device(pdev);
639 	return;
640 }
641 
642 static struct pci_device_id __devinitdata mvs_pci_table[] = {
643 	{ PCI_VDEVICE(MARVELL, 0x6320), chip_6320 },
644 	{ PCI_VDEVICE(MARVELL, 0x6340), chip_6440 },
645 	{
646 		.vendor 	= PCI_VENDOR_ID_MARVELL,
647 		.device 	= 0x6440,
648 		.subvendor	= PCI_ANY_ID,
649 		.subdevice	= 0x6480,
650 		.class		= 0,
651 		.class_mask	= 0,
652 		.driver_data	= chip_6485,
653 	},
654 	{ PCI_VDEVICE(MARVELL, 0x6440), chip_6440 },
655 	{ PCI_VDEVICE(MARVELL, 0x6485), chip_6485 },
656 	{ PCI_VDEVICE(MARVELL, 0x9480), chip_9480 },
657 	{ PCI_VDEVICE(MARVELL, 0x9180), chip_9180 },
658 	{ PCI_VDEVICE(ARECA, PCI_DEVICE_ID_ARECA_1300), chip_1300 },
659 	{ PCI_VDEVICE(ARECA, PCI_DEVICE_ID_ARECA_1320), chip_1320 },
660 	{ PCI_VDEVICE(ADAPTEC2, 0x0450), chip_6440 },
661 
662 	{ }	/* terminate list */
663 };
664 
665 static struct pci_driver mvs_pci_driver = {
666 	.name		= DRV_NAME,
667 	.id_table	= mvs_pci_table,
668 	.probe		= mvs_pci_init,
669 	.remove		= __devexit_p(mvs_pci_remove),
670 };
671 
672 /* task handler */
673 struct task_struct *mvs_th;
674 static int __init mvs_init(void)
675 {
676 	int rc;
677 	mvs_stt = sas_domain_attach_transport(&mvs_transport_ops);
678 	if (!mvs_stt)
679 		return -ENOMEM;
680 
681 	rc = pci_register_driver(&mvs_pci_driver);
682 
683 	if (rc)
684 		goto err_out;
685 
686 	return 0;
687 
688 err_out:
689 	sas_release_transport(mvs_stt);
690 	return rc;
691 }
692 
693 static void __exit mvs_exit(void)
694 {
695 	pci_unregister_driver(&mvs_pci_driver);
696 	sas_release_transport(mvs_stt);
697 }
698 
699 module_init(mvs_init);
700 module_exit(mvs_exit);
701 
702 MODULE_AUTHOR("Jeff Garzik <jgarzik@pobox.com>");
703 MODULE_DESCRIPTION("Marvell 88SE6440 SAS/SATA controller driver");
704 MODULE_VERSION(DRV_VERSION);
705 MODULE_LICENSE("GPL");
706 #ifdef CONFIG_PCI
707 MODULE_DEVICE_TABLE(pci, mvs_pci_table);
708 #endif
709