[deliverable/linux.git] / drivers / scsi / libsas / sas_init.c

/*
 * Serial Attached SCSI (SAS) Transport Layer initialization
 *
 * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
 * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
 *
 * This file is licensed under GPLv2.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 *
 */

#include <linux/module.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/spinlock.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_transport.h>
#include <scsi/scsi_transport_sas.h>

#include "sas_internal.h"

#include "../scsi_sas_internal.h"

static struct kmem_cache *sas_task_cache;

struct sas_task *sas_alloc_task(gfp_t flags)
{
	struct sas_task *task = kmem_cache_zalloc(sas_task_cache, flags);

	if (task) {
		INIT_LIST_HEAD(&task->list);
		spin_lock_init(&task->task_state_lock);
		task->task_state_flags = SAS_TASK_STATE_PENDING;
		init_timer(&task->timer);
		init_completion(&task->completion);
	}

	return task;
}
EXPORT_SYMBOL_GPL(sas_alloc_task);

void sas_free_task(struct sas_task *task)
{
	if (task) {
		BUG_ON(!list_empty(&task->list));
		kmem_cache_free(sas_task_cache, task);
	}
}
EXPORT_SYMBOL_GPL(sas_free_task);

/*------------ SAS addr hash -----------*/
void sas_hash_addr(u8 *hashed, const u8 *sas_addr)
{
        const u32 poly = 0x00DB2777;
        u32     r = 0;
        int     i;

        for (i = 0; i < 8; i++) {
                int b;
                for (b = 7; b >= 0; b--) {
                        r <<= 1;
                        if ((1 << b) & sas_addr[i]) {
                                if (!(r & 0x01000000))
                                        r ^= poly;
                        } else if (r & 0x01000000)
                                r ^= poly;
                }
        }

        hashed[0] = (r >> 16) & 0xFF;
        hashed[1] = (r >> 8) & 0xFF ;
        hashed[2] = r & 0xFF;
}


/* ---------- HA events ---------- */

void sas_hae_reset(struct work_struct *work)
{
	struct sas_ha_event *ev =
		container_of(work, struct sas_ha_event, work);
	struct sas_ha_struct *ha = ev->ha;

	sas_begin_event(HAE_RESET, &ha->event_lock,
			&ha->pending);
}

int sas_register_ha(struct sas_ha_struct *sas_ha)
{
	int error = 0;

	spin_lock_init(&sas_ha->phy_port_lock);
	sas_hash_addr(sas_ha->hashed_sas_addr, sas_ha->sas_addr);

	if (sas_ha->lldd_queue_size == 0)
		sas_ha->lldd_queue_size = 1;
	else if (sas_ha->lldd_queue_size == -1)
		sas_ha->lldd_queue_size = 128; /* Sanity */

	sas_ha->state = SAS_HA_REGISTERED;
	spin_lock_init(&sas_ha->state_lock);

	error = sas_register_phys(sas_ha);
	if (error) {
		printk(KERN_NOTICE "couldn't register sas phys:%d\n", error);
		return error;
	}

	error = sas_register_ports(sas_ha);
	if (error) {
		printk(KERN_NOTICE "couldn't register sas ports:%d\n", error);
		goto Undo_phys;
	}

	error = sas_init_events(sas_ha);
	if (error) {
		printk(KERN_NOTICE "couldn't start event thread:%d\n", error);
		goto Undo_ports;
	}

	if (sas_ha->lldd_max_execute_num > 1) {
		error = sas_init_queue(sas_ha);
		if (error) {
			printk(KERN_NOTICE "couldn't start queue thread:%d, "
			       "running in direct mode\n", error);
			sas_ha->lldd_max_execute_num = 1;
		}
	}

	INIT_LIST_HEAD(&sas_ha->eh_done_q);

	return 0;

Undo_ports:
	sas_unregister_ports(sas_ha);
Undo_phys:

	return error;
}

int sas_unregister_ha(struct sas_ha_struct *sas_ha)
{
	unsigned long flags;

	/* Set the state to unregistered to avoid further
	 * events to be queued */
	spin_lock_irqsave(&sas_ha->state_lock, flags);
	sas_ha->state = SAS_HA_UNREGISTERED;
	spin_unlock_irqrestore(&sas_ha->state_lock, flags);
	scsi_flush_work(sas_ha->core.shost);

	sas_unregister_ports(sas_ha);

	if (sas_ha->lldd_max_execute_num > 1) {
		sas_shutdown_queue(sas_ha);
		sas_ha->lldd_max_execute_num = 1;
	}

	return 0;
}

static int sas_get_linkerrors(struct sas_phy *phy)
{
	if (scsi_is_sas_phy_local(phy))
		/* FIXME: we have no local phy stats
		 * gathering at this time */
		return -EINVAL;

	return sas_smp_get_phy_events(phy);
}

int sas_phy_enable(struct sas_phy *phy, int enable)
{
	int ret;
	enum phy_func command;

	if (enable)
		command = PHY_FUNC_LINK_RESET;
	else
		command = PHY_FUNC_DISABLE;

	if (scsi_is_sas_phy_local(phy)) {
		struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
		struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(shost);
		struct asd_sas_phy *asd_phy = sas_ha->sas_phy[phy->number];
		struct sas_internal *i =
			to_sas_internal(sas_ha->core.shost->transportt);

		if (!enable) {
			sas_phy_disconnected(asd_phy);
			sas_ha->notify_phy_event(asd_phy, PHYE_LOSS_OF_SIGNAL);
		}
		ret = i->dft->lldd_control_phy(asd_phy, command, NULL);
	} else {
		struct sas_rphy *rphy = dev_to_rphy(phy->dev.parent);
		struct domain_device *ddev = sas_find_dev_by_rphy(rphy);
		ret = sas_smp_phy_control(ddev, phy->number, command, NULL);
	}
	return ret;
}

int sas_phy_reset(struct sas_phy *phy, int hard_reset)
{
	int ret;
	enum phy_func reset_type;

	if (hard_reset)
		reset_type = PHY_FUNC_HARD_RESET;
	else
		reset_type = PHY_FUNC_LINK_RESET;

	if (scsi_is_sas_phy_local(phy)) {
		struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
		struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(shost);
		struct asd_sas_phy *asd_phy = sas_ha->sas_phy[phy->number];
		struct sas_internal *i =
			to_sas_internal(sas_ha->core.shost->transportt);

		ret = i->dft->lldd_control_phy(asd_phy, reset_type, NULL);
	} else {
		struct sas_rphy *rphy = dev_to_rphy(phy->dev.parent);
		struct domain_device *ddev = sas_find_dev_by_rphy(rphy);
		ret = sas_smp_phy_control(ddev, phy->number, reset_type, NULL);
	}
	return ret;
}

int sas_set_phy_speed(struct sas_phy *phy,
		      struct sas_phy_linkrates *rates)
{
	int ret;

	if ((rates->minimum_linkrate &&
	     rates->minimum_linkrate > phy->maximum_linkrate) ||
	    (rates->maximum_linkrate &&
	     rates->maximum_linkrate < phy->minimum_linkrate))
		return -EINVAL;

	if (rates->minimum_linkrate &&
	    rates->minimum_linkrate < phy->minimum_linkrate_hw)
		rates->minimum_linkrate = phy->minimum_linkrate_hw;

	if (rates->maximum_linkrate &&
	    rates->maximum_linkrate > phy->maximum_linkrate_hw)
		rates->maximum_linkrate = phy->maximum_linkrate_hw;

	if (scsi_is_sas_phy_local(phy)) {
		struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
		struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(shost);
		struct asd_sas_phy *asd_phy = sas_ha->sas_phy[phy->number];
		struct sas_internal *i =
			to_sas_internal(sas_ha->core.shost->transportt);

		ret = i->dft->lldd_control_phy(asd_phy, PHY_FUNC_SET_LINK_RATE,
					       rates);
	} else {
		struct sas_rphy *rphy = dev_to_rphy(phy->dev.parent);
		struct domain_device *ddev = sas_find_dev_by_rphy(rphy);
		ret = sas_smp_phy_control(ddev, phy->number,
					  PHY_FUNC_LINK_RESET, rates);

	}

	return ret;
}

static struct sas_function_template sft = {
	.phy_enable = sas_phy_enable,
	.phy_reset = sas_phy_reset,
	.set_phy_speed = sas_set_phy_speed,
	.get_linkerrors = sas_get_linkerrors,
	.smp_handler = sas_smp_handler,
};

struct scsi_transport_template *
sas_domain_attach_transport(struct sas_domain_function_template *dft)
{
	struct scsi_transport_template *stt = sas_attach_transport(&sft);
	struct sas_internal *i;

	if (!stt)
		return stt;

	i = to_sas_internal(stt);
	i->dft = dft;
	stt->create_work_queue = 1;
	stt->eh_timed_out = sas_scsi_timed_out;
	stt->eh_strategy_handler = sas_scsi_recover_host;

	return stt;
}
EXPORT_SYMBOL_GPL(sas_domain_attach_transport);


void sas_domain_release_transport(struct scsi_transport_template *stt)
{
	sas_release_transport(stt);
}
EXPORT_SYMBOL_GPL(sas_domain_release_transport);

/* ---------- SAS Class register/unregister ---------- */

static int __init sas_class_init(void)
{
	sas_task_cache = KMEM_CACHE(sas_task, SLAB_HWCACHE_ALIGN);
	if (!sas_task_cache)
		return -ENOMEM;

	return 0;
}

static void __exit sas_class_exit(void)
{
	kmem_cache_destroy(sas_task_cache);
}

MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>");
MODULE_DESCRIPTION("SAS Transport Layer");
MODULE_LICENSE("GPL v2");

module_init(sas_class_init);
module_exit(sas_class_exit);

EXPORT_SYMBOL_GPL(sas_register_ha);
EXPORT_SYMBOL_GPL(sas_unregister_ha);
Commit	Line	Data
2908d778 JB	1	/*
	2	* Serial Attached SCSI (SAS) Transport Layer initialization
	3	*
	4	* Copyright (C) 2005 Adaptec, Inc. All rights reserved.
	5	* Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.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; either version 2 of the
	12	* License, or (at your option) any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful, but
	15	* 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 <linux/module.h>
5a0e3ad6	27	#include <linux/slab.h>
2908d778 JB	28	#include <linux/init.h>
	29	#include <linux/device.h>
	30	#include <linux/spinlock.h>
	31	#include <scsi/scsi_host.h>
	32	#include <scsi/scsi_device.h>
	33	#include <scsi/scsi_transport.h>
	34	#include <scsi/scsi_transport_sas.h>
	35
	36	#include "sas_internal.h"
	37
	38	#include "../scsi_sas_internal.h"
	39
4fcf812c DW	40	static struct kmem_cache *sas_task_cache;
	41
	42	struct sas_task *sas_alloc_task(gfp_t flags)
	43	{
	44	struct sas_task *task = kmem_cache_zalloc(sas_task_cache, flags);
	45
	46	if (task) {
	47	INIT_LIST_HEAD(&task->list);
	48	spin_lock_init(&task->task_state_lock);
	49	task->task_state_flags = SAS_TASK_STATE_PENDING;
	50	init_timer(&task->timer);
	51	init_completion(&task->completion);
	52	}
	53
	54	return task;
	55	}
	56	EXPORT_SYMBOL_GPL(sas_alloc_task);
	57
	58	void sas_free_task(struct sas_task *task)
	59	{
	60	if (task) {
	61	BUG_ON(!list_empty(&task->list));
	62	kmem_cache_free(sas_task_cache, task);
	63	}
	64	}
	65	EXPORT_SYMBOL_GPL(sas_free_task);
2908d778 JB	66
	67	/------------ SAS addr hash -----------/
	68	void sas_hash_addr(u8 hashed, const u8 sas_addr)
	69	{
	70	const u32 poly = 0x00DB2777;
	71	u32 r = 0;
	72	int i;
	73
	74	for (i = 0; i < 8; i++) {
	75	int b;
	76	for (b = 7; b >= 0; b--) {
	77	r <<= 1;
	78	if ((1 << b) & sas_addr[i]) {
	79	if (!(r & 0x01000000))
	80	r ^= poly;
	81	} else if (r & 0x01000000)
	82	r ^= poly;
	83	}
	84	}
	85
	86	hashed[0] = (r >> 16) & 0xFF;
	87	hashed[1] = (r >> 8) & 0xFF ;
	88	hashed[2] = r & 0xFF;
	89	}
	90
	91
	92	/* ---------- HA events ---------- */
	93
c4028958	94	void sas_hae_reset(struct work_struct *work)
2908d778	95	{
c4028958 DH	96	struct sas_ha_event *ev =
	97	container_of(work, struct sas_ha_event, work);
	98	struct sas_ha_struct *ha = ev->ha;
2908d778 JB	99
	100	sas_begin_event(HAE_RESET, &ha->event_lock,
	101	&ha->pending);
	102	}
	103
	104	int sas_register_ha(struct sas_ha_struct *sas_ha)
	105	{
	106	int error = 0;
	107
	108	spin_lock_init(&sas_ha->phy_port_lock);
	109	sas_hash_addr(sas_ha->hashed_sas_addr, sas_ha->sas_addr);
	110
	111	if (sas_ha->lldd_queue_size == 0)
	112	sas_ha->lldd_queue_size = 1;
	113	else if (sas_ha->lldd_queue_size == -1)
	114	sas_ha->lldd_queue_size = 128; /* Sanity */
	115
6b0efb85 DW	116	sas_ha->state = SAS_HA_REGISTERED;
	117	spin_lock_init(&sas_ha->state_lock);
	118
2908d778 JB	119	error = sas_register_phys(sas_ha);
	120	if (error) {
	121	printk(KERN_NOTICE "couldn't register sas phys:%d\n", error);
	122	return error;
	123	}
	124
	125	error = sas_register_ports(sas_ha);
	126	if (error) {
	127	printk(KERN_NOTICE "couldn't register sas ports:%d\n", error);
	128	goto Undo_phys;
	129	}
	130
	131	error = sas_init_events(sas_ha);
	132	if (error) {
	133	printk(KERN_NOTICE "couldn't start event thread:%d\n", error);
	134	goto Undo_ports;
	135	}
	136
	137	if (sas_ha->lldd_max_execute_num > 1) {
	138	error = sas_init_queue(sas_ha);
	139	if (error) {
	140	printk(KERN_NOTICE "couldn't start queue thread:%d, "
	141	"running in direct mode\n", error);
	142	sas_ha->lldd_max_execute_num = 1;
	143	}
	144	}
	145
f456393e DW	146	INIT_LIST_HEAD(&sas_ha->eh_done_q);
f456393e DW	147
2908d778 JB	148	return 0;
	149
	150	Undo_ports:
	151	sas_unregister_ports(sas_ha);
	152	Undo_phys:
	153
	154	return error;
	155	}
	156
	157	int sas_unregister_ha(struct sas_ha_struct *sas_ha)
	158	{
6b0efb85 DW	159	unsigned long flags;
	160
	161	/* Set the state to unregistered to avoid further
	162	* events to be queued */
	163	spin_lock_irqsave(&sas_ha->state_lock, flags);
	164	sas_ha->state = SAS_HA_UNREGISTERED;
	165	spin_unlock_irqrestore(&sas_ha->state_lock, flags);
	166	scsi_flush_work(sas_ha->core.shost);
	167
cde3f74b DW	168	sas_unregister_ports(sas_ha);
cde3f74b DW	169
2908d778 JB	170	if (sas_ha->lldd_max_execute_num > 1) {
2908d778 JB	171	sas_shutdown_queue(sas_ha);
cde3f74b	172	sas_ha->lldd_max_execute_num = 1;
2908d778 JB	173	}
2908d778 JB	174
2908d778 JB	175	return 0;
	176	}
	177
	178	static int sas_get_linkerrors(struct sas_phy *phy)
	179	{
	180	if (scsi_is_sas_phy_local(phy))
	181	/* FIXME: we have no local phy stats
	182	* gathering at this time */
	183	return -EINVAL;
	184
	185	return sas_smp_get_phy_events(phy);
	186	}
	187
acbf167d DW	188	int sas_phy_enable(struct sas_phy *phy, int enable)
	189	{
	190	int ret;
	191	enum phy_func command;
	192
	193	if (enable)
	194	command = PHY_FUNC_LINK_RESET;
	195	else
	196	command = PHY_FUNC_DISABLE;
	197
	198	if (scsi_is_sas_phy_local(phy)) {
	199	struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
	200	struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(shost);
	201	struct asd_sas_phy *asd_phy = sas_ha->sas_phy[phy->number];
	202	struct sas_internal *i =
	203	to_sas_internal(sas_ha->core.shost->transportt);
	204
	205	if (!enable) {
	206	sas_phy_disconnected(asd_phy);
	207	sas_ha->notify_phy_event(asd_phy, PHYE_LOSS_OF_SIGNAL);
	208	}
	209	ret = i->dft->lldd_control_phy(asd_phy, command, NULL);
	210	} else {
	211	struct sas_rphy *rphy = dev_to_rphy(phy->dev.parent);
	212	struct domain_device *ddev = sas_find_dev_by_rphy(rphy);
	213	ret = sas_smp_phy_control(ddev, phy->number, command, NULL);
	214	}
	215	return ret;
	216	}
	217
dea22214	218	int sas_phy_reset(struct sas_phy *phy, int hard_reset)
2908d778 JB	219	{
	220	int ret;
	221	enum phy_func reset_type;
	222
	223	if (hard_reset)
	224	reset_type = PHY_FUNC_HARD_RESET;
	225	else
	226	reset_type = PHY_FUNC_LINK_RESET;
	227
	228	if (scsi_is_sas_phy_local(phy)) {
	229	struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
	230	struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(shost);
	231	struct asd_sas_phy *asd_phy = sas_ha->sas_phy[phy->number];
	232	struct sas_internal *i =
	233	to_sas_internal(sas_ha->core.shost->transportt);
	234
a01e70e5	235	ret = i->dft->lldd_control_phy(asd_phy, reset_type, NULL);
2908d778 JB	236	} else {
	237	struct sas_rphy *rphy = dev_to_rphy(phy->dev.parent);
	238	struct domain_device *ddev = sas_find_dev_by_rphy(rphy);
a01e70e5	239	ret = sas_smp_phy_control(ddev, phy->number, reset_type, NULL);
2908d778 JB	240	}
	241	return ret;
	242	}
	243
acbf167d DW	244	int sas_set_phy_speed(struct sas_phy *phy,
acbf167d DW	245	struct sas_phy_linkrates *rates)
a01e70e5 JB	246	{
	247	int ret;
	248
	249	if ((rates->minimum_linkrate &&
	250	rates->minimum_linkrate > phy->maximum_linkrate) \|\|
	251	(rates->maximum_linkrate &&
	252	rates->maximum_linkrate < phy->minimum_linkrate))
	253	return -EINVAL;
	254
	255	if (rates->minimum_linkrate &&
	256	rates->minimum_linkrate < phy->minimum_linkrate_hw)
	257	rates->minimum_linkrate = phy->minimum_linkrate_hw;
	258
	259	if (rates->maximum_linkrate &&
	260	rates->maximum_linkrate > phy->maximum_linkrate_hw)
	261	rates->maximum_linkrate = phy->maximum_linkrate_hw;
	262
	263	if (scsi_is_sas_phy_local(phy)) {
	264	struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
	265	struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(shost);
	266	struct asd_sas_phy *asd_phy = sas_ha->sas_phy[phy->number];
	267	struct sas_internal *i =
	268	to_sas_internal(sas_ha->core.shost->transportt);
	269
	270	ret = i->dft->lldd_control_phy(asd_phy, PHY_FUNC_SET_LINK_RATE,
	271	rates);
	272	} else {
	273	struct sas_rphy *rphy = dev_to_rphy(phy->dev.parent);
	274	struct domain_device *ddev = sas_find_dev_by_rphy(rphy);
	275	ret = sas_smp_phy_control(ddev, phy->number,
	276	PHY_FUNC_LINK_RESET, rates);
	277
	278	}
	279
	280	return ret;
	281	}
	282
2908d778	283	static struct sas_function_template sft = {
acbf167d	284	.phy_enable = sas_phy_enable,
2908d778	285	.phy_reset = sas_phy_reset,
a01e70e5	286	.set_phy_speed = sas_set_phy_speed,
2908d778	287	.get_linkerrors = sas_get_linkerrors,
ba1fc175	288	.smp_handler = sas_smp_handler,
2908d778 JB	289	};
	290
	291	struct scsi_transport_template *
	292	sas_domain_attach_transport(struct sas_domain_function_template *dft)
	293	{
	294	struct scsi_transport_template *stt = sas_attach_transport(&sft);
	295	struct sas_internal *i;
	296
	297	if (!stt)
	298	return stt;
	299
	300	i = to_sas_internal(stt);
	301	i->dft = dft;
	302	stt->create_work_queue = 1;
	303	stt->eh_timed_out = sas_scsi_timed_out;
	304	stt->eh_strategy_handler = sas_scsi_recover_host;
	305
	306	return stt;
	307	}
	308	EXPORT_SYMBOL_GPL(sas_domain_attach_transport);
	309
	310
	311	void sas_domain_release_transport(struct scsi_transport_template *stt)
	312	{
	313	sas_release_transport(stt);
	314	}
	315	EXPORT_SYMBOL_GPL(sas_domain_release_transport);
	316
	317	/* ---------- SAS Class register/unregister ---------- */
	318
	319	static int __init sas_class_init(void)
	320	{
4fcf812c	321	sas_task_cache = KMEM_CACHE(sas_task, SLAB_HWCACHE_ALIGN);
2908d778 JB	322	if (!sas_task_cache)
	323	return -ENOMEM;
	324
	325	return 0;
	326	}
	327
	328	static void __exit sas_class_exit(void)
	329	{
	330	kmem_cache_destroy(sas_task_cache);
	331	}
	332
	333	MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>");
	334	MODULE_DESCRIPTION("SAS Transport Layer");
	335	MODULE_LICENSE("GPL v2");
	336
	337	module_init(sas_class_init);
	338	module_exit(sas_class_exit);
	339
	340	EXPORT_SYMBOL_GPL(sas_register_ha);
	341	EXPORT_SYMBOL_GPL(sas_unregister_ha);