xref: /openbmc/linux/drivers/scsi/mvsas/mv_init.c (revision e8e0929d)
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 };
36 
37 #define SOC_SAS_NUM 2
38 
39 static struct scsi_host_template mvs_sht = {
40 	.module			= THIS_MODULE,
41 	.name			= DRV_NAME,
42 	.queuecommand		= sas_queuecommand,
43 	.target_alloc		= sas_target_alloc,
44 	.slave_configure	= mvs_slave_configure,
45 	.slave_destroy		= sas_slave_destroy,
46 	.scan_finished		= mvs_scan_finished,
47 	.scan_start		= mvs_scan_start,
48 	.change_queue_depth	= sas_change_queue_depth,
49 	.change_queue_type	= sas_change_queue_type,
50 	.bios_param		= sas_bios_param,
51 	.can_queue		= 1,
52 	.cmd_per_lun		= 1,
53 	.this_id		= -1,
54 	.sg_tablesize		= SG_ALL,
55 	.max_sectors		= SCSI_DEFAULT_MAX_SECTORS,
56 	.use_clustering		= ENABLE_CLUSTERING,
57 	.eh_device_reset_handler	= sas_eh_device_reset_handler,
58 	.eh_bus_reset_handler	= sas_eh_bus_reset_handler,
59 	.slave_alloc		= mvs_slave_alloc,
60 	.target_destroy		= sas_target_destroy,
61 	.ioctl			= sas_ioctl,
62 };
63 
64 static struct sas_domain_function_template mvs_transport_ops = {
65 	.lldd_dev_found 	= mvs_dev_found,
66 	.lldd_dev_gone	= mvs_dev_gone,
67 
68 	.lldd_execute_task	= mvs_queue_command,
69 	.lldd_control_phy	= mvs_phy_control,
70 
71 	.lldd_abort_task	= mvs_abort_task,
72 	.lldd_abort_task_set    = mvs_abort_task_set,
73 	.lldd_clear_aca         = mvs_clear_aca,
74        .lldd_clear_task_set    = mvs_clear_task_set,
75 	.lldd_I_T_nexus_reset	= mvs_I_T_nexus_reset,
76 	.lldd_lu_reset 		= mvs_lu_reset,
77 	.lldd_query_task	= mvs_query_task,
78 
79 	.lldd_port_formed	= mvs_port_formed,
80 	.lldd_port_deformed     = mvs_port_deformed,
81 
82 };
83 
84 static void __devinit mvs_phy_init(struct mvs_info *mvi, int phy_id)
85 {
86 	struct mvs_phy *phy = &mvi->phy[phy_id];
87 	struct asd_sas_phy *sas_phy = &phy->sas_phy;
88 
89 	phy->mvi = mvi;
90 	init_timer(&phy->timer);
91 	sas_phy->enabled = (phy_id < mvi->chip->n_phy) ? 1 : 0;
92 	sas_phy->class = SAS;
93 	sas_phy->iproto = SAS_PROTOCOL_ALL;
94 	sas_phy->tproto = 0;
95 	sas_phy->type = PHY_TYPE_PHYSICAL;
96 	sas_phy->role = PHY_ROLE_INITIATOR;
97 	sas_phy->oob_mode = OOB_NOT_CONNECTED;
98 	sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN;
99 
100 	sas_phy->id = phy_id;
101 	sas_phy->sas_addr = &mvi->sas_addr[0];
102 	sas_phy->frame_rcvd = &phy->frame_rcvd[0];
103 	sas_phy->ha = (struct sas_ha_struct *)mvi->shost->hostdata;
104 	sas_phy->lldd_phy = phy;
105 }
106 
107 static void mvs_free(struct mvs_info *mvi)
108 {
109 	int i;
110 	struct mvs_wq *mwq;
111 	int slot_nr;
112 
113 	if (!mvi)
114 		return;
115 
116 	if (mvi->flags & MVF_FLAG_SOC)
117 		slot_nr = MVS_SOC_SLOTS;
118 	else
119 		slot_nr = MVS_SLOTS;
120 
121 	for (i = 0; i < mvi->tags_num; i++) {
122 		struct mvs_slot_info *slot = &mvi->slot_info[i];
123 		if (slot->buf)
124 			dma_free_coherent(mvi->dev, MVS_SLOT_BUF_SZ,
125 					  slot->buf, slot->buf_dma);
126 	}
127 
128 	if (mvi->tx)
129 		dma_free_coherent(mvi->dev,
130 				  sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ,
131 				  mvi->tx, mvi->tx_dma);
132 	if (mvi->rx_fis)
133 		dma_free_coherent(mvi->dev, MVS_RX_FISL_SZ,
134 				  mvi->rx_fis, mvi->rx_fis_dma);
135 	if (mvi->rx)
136 		dma_free_coherent(mvi->dev,
137 				  sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1),
138 				  mvi->rx, mvi->rx_dma);
139 	if (mvi->slot)
140 		dma_free_coherent(mvi->dev,
141 				  sizeof(*mvi->slot) * slot_nr,
142 				  mvi->slot, mvi->slot_dma);
143 #ifndef DISABLE_HOTPLUG_DMA_FIX
144 	if (mvi->bulk_buffer)
145 		dma_free_coherent(mvi->dev, TRASH_BUCKET_SIZE,
146 				  mvi->bulk_buffer, mvi->bulk_buffer_dma);
147 #endif
148 
149 	MVS_CHIP_DISP->chip_iounmap(mvi);
150 	if (mvi->shost)
151 		scsi_host_put(mvi->shost);
152 	list_for_each_entry(mwq, &mvi->wq_list, entry)
153 		cancel_delayed_work(&mwq->work_q);
154 	kfree(mvi);
155 }
156 
157 #ifdef MVS_USE_TASKLET
158 struct tasklet_struct	mv_tasklet;
159 static void mvs_tasklet(unsigned long opaque)
160 {
161 	unsigned long flags;
162 	u32 stat;
163 	u16 core_nr, i = 0;
164 
165 	struct mvs_info *mvi;
166 	struct sas_ha_struct *sha = (struct sas_ha_struct *)opaque;
167 
168 	core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
169 	mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
170 
171 	if (unlikely(!mvi))
172 		BUG_ON(1);
173 
174 	for (i = 0; i < core_nr; i++) {
175 		mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
176 		stat = MVS_CHIP_DISP->isr_status(mvi, mvi->irq);
177 		if (stat)
178 			MVS_CHIP_DISP->isr(mvi, mvi->irq, stat);
179 	}
180 
181 }
182 #endif
183 
184 static irqreturn_t mvs_interrupt(int irq, void *opaque)
185 {
186 	u32 core_nr, i = 0;
187 	u32 stat;
188 	struct mvs_info *mvi;
189 	struct sas_ha_struct *sha = opaque;
190 
191 	core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
192 	mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
193 
194 	if (unlikely(!mvi))
195 		return IRQ_NONE;
196 
197 	stat = MVS_CHIP_DISP->isr_status(mvi, irq);
198 	if (!stat)
199 		return IRQ_NONE;
200 
201 #ifdef MVS_USE_TASKLET
202 	tasklet_schedule(&mv_tasklet);
203 #else
204 	for (i = 0; i < core_nr; i++) {
205 		mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
206 		MVS_CHIP_DISP->isr(mvi, irq, stat);
207 	}
208 #endif
209 	return IRQ_HANDLED;
210 }
211 
212 static int __devinit mvs_alloc(struct mvs_info *mvi, struct Scsi_Host *shost)
213 {
214 	int i, slot_nr;
215 
216 	if (mvi->flags & MVF_FLAG_SOC)
217 		slot_nr = MVS_SOC_SLOTS;
218 	else
219 		slot_nr = MVS_SLOTS;
220 
221 	spin_lock_init(&mvi->lock);
222 	for (i = 0; i < mvi->chip->n_phy; i++) {
223 		mvs_phy_init(mvi, i);
224 		mvi->port[i].wide_port_phymap = 0;
225 		mvi->port[i].port_attached = 0;
226 		INIT_LIST_HEAD(&mvi->port[i].list);
227 	}
228 	for (i = 0; i < MVS_MAX_DEVICES; i++) {
229 		mvi->devices[i].taskfileset = MVS_ID_NOT_MAPPED;
230 		mvi->devices[i].dev_type = NO_DEVICE;
231 		mvi->devices[i].device_id = i;
232 		mvi->devices[i].dev_status = MVS_DEV_NORMAL;
233 	}
234 
235 	/*
236 	 * alloc and init our DMA areas
237 	 */
238 	mvi->tx = dma_alloc_coherent(mvi->dev,
239 				     sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ,
240 				     &mvi->tx_dma, GFP_KERNEL);
241 	if (!mvi->tx)
242 		goto err_out;
243 	memset(mvi->tx, 0, sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ);
244 	mvi->rx_fis = dma_alloc_coherent(mvi->dev, MVS_RX_FISL_SZ,
245 					 &mvi->rx_fis_dma, GFP_KERNEL);
246 	if (!mvi->rx_fis)
247 		goto err_out;
248 	memset(mvi->rx_fis, 0, MVS_RX_FISL_SZ);
249 
250 	mvi->rx = dma_alloc_coherent(mvi->dev,
251 				     sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1),
252 				     &mvi->rx_dma, GFP_KERNEL);
253 	if (!mvi->rx)
254 		goto err_out;
255 	memset(mvi->rx, 0, sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1));
256 	mvi->rx[0] = cpu_to_le32(0xfff);
257 	mvi->rx_cons = 0xfff;
258 
259 	mvi->slot = dma_alloc_coherent(mvi->dev,
260 				       sizeof(*mvi->slot) * slot_nr,
261 				       &mvi->slot_dma, GFP_KERNEL);
262 	if (!mvi->slot)
263 		goto err_out;
264 	memset(mvi->slot, 0, sizeof(*mvi->slot) * slot_nr);
265 
266 #ifndef DISABLE_HOTPLUG_DMA_FIX
267 	mvi->bulk_buffer = dma_alloc_coherent(mvi->dev,
268 				       TRASH_BUCKET_SIZE,
269 				       &mvi->bulk_buffer_dma, GFP_KERNEL);
270 	if (!mvi->bulk_buffer)
271 		goto err_out;
272 #endif
273 	for (i = 0; i < slot_nr; i++) {
274 		struct mvs_slot_info *slot = &mvi->slot_info[i];
275 
276 		slot->buf = dma_alloc_coherent(mvi->dev, MVS_SLOT_BUF_SZ,
277 					       &slot->buf_dma, GFP_KERNEL);
278 		if (!slot->buf) {
279 			printk(KERN_DEBUG"failed to allocate slot->buf.\n");
280 			goto err_out;
281 		}
282 		memset(slot->buf, 0, MVS_SLOT_BUF_SZ);
283 		++mvi->tags_num;
284 	}
285 	/* Initialize tags */
286 	mvs_tag_init(mvi);
287 	return 0;
288 err_out:
289 	return 1;
290 }
291 
292 
293 int mvs_ioremap(struct mvs_info *mvi, int bar, int bar_ex)
294 {
295 	unsigned long res_start, res_len, res_flag, res_flag_ex = 0;
296 	struct pci_dev *pdev = mvi->pdev;
297 	if (bar_ex != -1) {
298 		/*
299 		 * ioremap main and peripheral registers
300 		 */
301 		res_start = pci_resource_start(pdev, bar_ex);
302 		res_len = pci_resource_len(pdev, bar_ex);
303 		if (!res_start || !res_len)
304 			goto err_out;
305 
306 		res_flag_ex = pci_resource_flags(pdev, bar_ex);
307 		if (res_flag_ex & IORESOURCE_MEM) {
308 			if (res_flag_ex & IORESOURCE_CACHEABLE)
309 				mvi->regs_ex = ioremap(res_start, res_len);
310 			else
311 				mvi->regs_ex = ioremap_nocache(res_start,
312 						res_len);
313 		} else
314 			mvi->regs_ex = (void *)res_start;
315 		if (!mvi->regs_ex)
316 			goto err_out;
317 	}
318 
319 	res_start = pci_resource_start(pdev, bar);
320 	res_len = pci_resource_len(pdev, bar);
321 	if (!res_start || !res_len)
322 		goto err_out;
323 
324 	res_flag = pci_resource_flags(pdev, bar);
325 	if (res_flag & IORESOURCE_CACHEABLE)
326 		mvi->regs = ioremap(res_start, res_len);
327 	else
328 		mvi->regs = ioremap_nocache(res_start, res_len);
329 
330 	if (!mvi->regs) {
331 		if (mvi->regs_ex && (res_flag_ex & IORESOURCE_MEM))
332 			iounmap(mvi->regs_ex);
333 		mvi->regs_ex = NULL;
334 		goto err_out;
335 	}
336 
337 	return 0;
338 err_out:
339 	return -1;
340 }
341 
342 void mvs_iounmap(void __iomem *regs)
343 {
344 	iounmap(regs);
345 }
346 
347 static struct mvs_info *__devinit mvs_pci_alloc(struct pci_dev *pdev,
348 				const struct pci_device_id *ent,
349 				struct Scsi_Host *shost, unsigned int id)
350 {
351 	struct mvs_info *mvi;
352 	struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
353 
354 	mvi = kzalloc(sizeof(*mvi) + MVS_SLOTS * sizeof(struct mvs_slot_info),
355 			GFP_KERNEL);
356 	if (!mvi)
357 		return NULL;
358 
359 	mvi->pdev = pdev;
360 	mvi->dev = &pdev->dev;
361 	mvi->chip_id = ent->driver_data;
362 	mvi->chip = &mvs_chips[mvi->chip_id];
363 	INIT_LIST_HEAD(&mvi->wq_list);
364 	mvi->irq = pdev->irq;
365 
366 	((struct mvs_prv_info *)sha->lldd_ha)->mvi[id] = mvi;
367 	((struct mvs_prv_info *)sha->lldd_ha)->n_phy = mvi->chip->n_phy;
368 
369 	mvi->id = id;
370 	mvi->sas = sha;
371 	mvi->shost = shost;
372 #ifdef MVS_USE_TASKLET
373 	tasklet_init(&mv_tasklet, mvs_tasklet, (unsigned long)sha);
374 #endif
375 
376 	if (MVS_CHIP_DISP->chip_ioremap(mvi))
377 		goto err_out;
378 	if (!mvs_alloc(mvi, shost))
379 		return mvi;
380 err_out:
381 	mvs_free(mvi);
382 	return NULL;
383 }
384 
385 /* move to PCI layer or libata core? */
386 static int pci_go_64(struct pci_dev *pdev)
387 {
388 	int rc;
389 
390 	if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
391 		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
392 		if (rc) {
393 			rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
394 			if (rc) {
395 				dev_printk(KERN_ERR, &pdev->dev,
396 					   "64-bit DMA enable failed\n");
397 				return rc;
398 			}
399 		}
400 	} else {
401 		rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
402 		if (rc) {
403 			dev_printk(KERN_ERR, &pdev->dev,
404 				   "32-bit DMA enable failed\n");
405 			return rc;
406 		}
407 		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
408 		if (rc) {
409 			dev_printk(KERN_ERR, &pdev->dev,
410 				   "32-bit consistent DMA enable failed\n");
411 			return rc;
412 		}
413 	}
414 
415 	return rc;
416 }
417 
418 static int __devinit mvs_prep_sas_ha_init(struct Scsi_Host *shost,
419 				const struct mvs_chip_info *chip_info)
420 {
421 	int phy_nr, port_nr; unsigned short core_nr;
422 	struct asd_sas_phy **arr_phy;
423 	struct asd_sas_port **arr_port;
424 	struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
425 
426 	core_nr = chip_info->n_host;
427 	phy_nr  = core_nr * chip_info->n_phy;
428 	port_nr = phy_nr;
429 
430 	memset(sha, 0x00, sizeof(struct sas_ha_struct));
431 	arr_phy  = kcalloc(phy_nr, sizeof(void *), GFP_KERNEL);
432 	arr_port = kcalloc(port_nr, sizeof(void *), GFP_KERNEL);
433 	if (!arr_phy || !arr_port)
434 		goto exit_free;
435 
436 	sha->sas_phy = arr_phy;
437 	sha->sas_port = arr_port;
438 
439 	sha->lldd_ha = kzalloc(sizeof(struct mvs_prv_info), GFP_KERNEL);
440 	if (!sha->lldd_ha)
441 		goto exit_free;
442 
443 	((struct mvs_prv_info *)sha->lldd_ha)->n_host = core_nr;
444 
445 	shost->transportt = mvs_stt;
446 	shost->max_id = 128;
447 	shost->max_lun = ~0;
448 	shost->max_channel = 1;
449 	shost->max_cmd_len = 16;
450 
451 	return 0;
452 exit_free:
453 	kfree(arr_phy);
454 	kfree(arr_port);
455 	return -1;
456 
457 }
458 
459 static void  __devinit mvs_post_sas_ha_init(struct Scsi_Host *shost,
460 			const struct mvs_chip_info *chip_info)
461 {
462 	int can_queue, i = 0, j = 0;
463 	struct mvs_info *mvi = NULL;
464 	struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
465 	unsigned short nr_core = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
466 
467 	for (j = 0; j < nr_core; j++) {
468 		mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[j];
469 		for (i = 0; i < chip_info->n_phy; i++) {
470 			sha->sas_phy[j * chip_info->n_phy  + i] =
471 				&mvi->phy[i].sas_phy;
472 			sha->sas_port[j * chip_info->n_phy + i] =
473 				&mvi->port[i].sas_port;
474 		}
475 	}
476 
477 	sha->sas_ha_name = DRV_NAME;
478 	sha->dev = mvi->dev;
479 	sha->lldd_module = THIS_MODULE;
480 	sha->sas_addr = &mvi->sas_addr[0];
481 
482 	sha->num_phys = nr_core * chip_info->n_phy;
483 
484 	sha->lldd_max_execute_num = 1;
485 
486 	if (mvi->flags & MVF_FLAG_SOC)
487 		can_queue = MVS_SOC_CAN_QUEUE;
488 	else
489 		can_queue = MVS_CAN_QUEUE;
490 
491 	sha->lldd_queue_size = can_queue;
492 	shost->can_queue = can_queue;
493 	mvi->shost->cmd_per_lun = MVS_SLOTS/sha->num_phys;
494 	sha->core.shost = mvi->shost;
495 }
496 
497 static void mvs_init_sas_add(struct mvs_info *mvi)
498 {
499 	u8 i;
500 	for (i = 0; i < mvi->chip->n_phy; i++) {
501 		mvi->phy[i].dev_sas_addr = 0x5005043011ab0000ULL;
502 		mvi->phy[i].dev_sas_addr =
503 			cpu_to_be64((u64)(*(u64 *)&mvi->phy[i].dev_sas_addr));
504 	}
505 
506 	memcpy(mvi->sas_addr, &mvi->phy[0].dev_sas_addr, SAS_ADDR_SIZE);
507 }
508 
509 static int __devinit mvs_pci_init(struct pci_dev *pdev,
510 				  const struct pci_device_id *ent)
511 {
512 	unsigned int rc, nhost = 0;
513 	struct mvs_info *mvi;
514 	irq_handler_t irq_handler = mvs_interrupt;
515 	struct Scsi_Host *shost = NULL;
516 	const struct mvs_chip_info *chip;
517 
518 	dev_printk(KERN_INFO, &pdev->dev,
519 		"mvsas: driver version %s\n", DRV_VERSION);
520 	rc = pci_enable_device(pdev);
521 	if (rc)
522 		goto err_out_enable;
523 
524 	pci_set_master(pdev);
525 
526 	rc = pci_request_regions(pdev, DRV_NAME);
527 	if (rc)
528 		goto err_out_disable;
529 
530 	rc = pci_go_64(pdev);
531 	if (rc)
532 		goto err_out_regions;
533 
534 	shost = scsi_host_alloc(&mvs_sht, sizeof(void *));
535 	if (!shost) {
536 		rc = -ENOMEM;
537 		goto err_out_regions;
538 	}
539 
540 	chip = &mvs_chips[ent->driver_data];
541 	SHOST_TO_SAS_HA(shost) =
542 		kcalloc(1, sizeof(struct sas_ha_struct), GFP_KERNEL);
543 	if (!SHOST_TO_SAS_HA(shost)) {
544 		kfree(shost);
545 		rc = -ENOMEM;
546 		goto err_out_regions;
547 	}
548 
549 	rc = mvs_prep_sas_ha_init(shost, chip);
550 	if (rc) {
551 		kfree(shost);
552 		rc = -ENOMEM;
553 		goto err_out_regions;
554 	}
555 
556 	pci_set_drvdata(pdev, SHOST_TO_SAS_HA(shost));
557 
558 	do {
559 		mvi = mvs_pci_alloc(pdev, ent, shost, nhost);
560 		if (!mvi) {
561 			rc = -ENOMEM;
562 			goto err_out_regions;
563 		}
564 
565 		mvs_init_sas_add(mvi);
566 
567 		mvi->instance = nhost;
568 		rc = MVS_CHIP_DISP->chip_init(mvi);
569 		if (rc) {
570 			mvs_free(mvi);
571 			goto err_out_regions;
572 		}
573 		nhost++;
574 	} while (nhost < chip->n_host);
575 
576 	mvs_post_sas_ha_init(shost, chip);
577 
578 	rc = scsi_add_host(shost, &pdev->dev);
579 	if (rc)
580 		goto err_out_shost;
581 
582 	rc = sas_register_ha(SHOST_TO_SAS_HA(shost));
583 	if (rc)
584 		goto err_out_shost;
585 	rc = request_irq(pdev->irq, irq_handler, IRQF_SHARED,
586 		DRV_NAME, SHOST_TO_SAS_HA(shost));
587 	if (rc)
588 		goto err_not_sas;
589 
590 	MVS_CHIP_DISP->interrupt_enable(mvi);
591 
592 	scsi_scan_host(mvi->shost);
593 
594 	return 0;
595 
596 err_not_sas:
597 	sas_unregister_ha(SHOST_TO_SAS_HA(shost));
598 err_out_shost:
599 	scsi_remove_host(mvi->shost);
600 err_out_regions:
601 	pci_release_regions(pdev);
602 err_out_disable:
603 	pci_disable_device(pdev);
604 err_out_enable:
605 	return rc;
606 }
607 
608 static void __devexit mvs_pci_remove(struct pci_dev *pdev)
609 {
610 	unsigned short core_nr, i = 0;
611 	struct sas_ha_struct *sha = pci_get_drvdata(pdev);
612 	struct mvs_info *mvi = NULL;
613 
614 	core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
615 	mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
616 
617 #ifdef MVS_USE_TASKLET
618 	tasklet_kill(&mv_tasklet);
619 #endif
620 
621 	pci_set_drvdata(pdev, NULL);
622 	sas_unregister_ha(sha);
623 	sas_remove_host(mvi->shost);
624 	scsi_remove_host(mvi->shost);
625 
626 	MVS_CHIP_DISP->interrupt_disable(mvi);
627 	free_irq(mvi->irq, sha);
628 	for (i = 0; i < core_nr; i++) {
629 		mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
630 		mvs_free(mvi);
631 	}
632 	kfree(sha->sas_phy);
633 	kfree(sha->sas_port);
634 	kfree(sha);
635 	pci_release_regions(pdev);
636 	pci_disable_device(pdev);
637 	return;
638 }
639 
640 static struct pci_device_id __devinitdata mvs_pci_table[] = {
641 	{ PCI_VDEVICE(MARVELL, 0x6320), chip_6320 },
642 	{ PCI_VDEVICE(MARVELL, 0x6340), chip_6440 },
643 	{
644 		.vendor 	= PCI_VENDOR_ID_MARVELL,
645 		.device 	= 0x6440,
646 		.subvendor	= PCI_ANY_ID,
647 		.subdevice	= 0x6480,
648 		.class		= 0,
649 		.class_mask	= 0,
650 		.driver_data	= chip_6485,
651 	},
652 	{ PCI_VDEVICE(MARVELL, 0x6440), chip_6440 },
653 	{ PCI_VDEVICE(MARVELL, 0x6485), chip_6485 },
654 	{ PCI_VDEVICE(MARVELL, 0x9480), chip_9480 },
655 	{ PCI_VDEVICE(MARVELL, 0x9180), chip_9180 },
656 
657 	{ }	/* terminate list */
658 };
659 
660 static struct pci_driver mvs_pci_driver = {
661 	.name		= DRV_NAME,
662 	.id_table	= mvs_pci_table,
663 	.probe		= mvs_pci_init,
664 	.remove		= __devexit_p(mvs_pci_remove),
665 };
666 
667 /* task handler */
668 struct task_struct *mvs_th;
669 static int __init mvs_init(void)
670 {
671 	int rc;
672 	mvs_stt = sas_domain_attach_transport(&mvs_transport_ops);
673 	if (!mvs_stt)
674 		return -ENOMEM;
675 
676 	rc = pci_register_driver(&mvs_pci_driver);
677 
678 	if (rc)
679 		goto err_out;
680 
681 	return 0;
682 
683 err_out:
684 	sas_release_transport(mvs_stt);
685 	return rc;
686 }
687 
688 static void __exit mvs_exit(void)
689 {
690 	pci_unregister_driver(&mvs_pci_driver);
691 	sas_release_transport(mvs_stt);
692 }
693 
694 module_init(mvs_init);
695 module_exit(mvs_exit);
696 
697 MODULE_AUTHOR("Jeff Garzik <jgarzik@pobox.com>");
698 MODULE_DESCRIPTION("Marvell 88SE6440 SAS/SATA controller driver");
699 MODULE_VERSION(DRV_VERSION);
700 MODULE_LICENSE("GPL");
701 #ifdef CONFIG_PCI
702 MODULE_DEVICE_TABLE(pci, mvs_pci_table);
703 #endif
704