path: root/drivers/scsi/mvsas/mv_init.c

/*
 * Marvell 88SE64xx/88SE94xx pci init
 *
 * Copyright 2007 Red Hat, Inc.
 * Copyright 2008 Marvell. <kewei@marvell.com>
 * Copyright 2009-2011 Marvell. <yuxiangl@marvell.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; version 2 of the
 * License.
 *
 * 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 "mv_sas.h"

static int lldd_max_execute_num = 1;
module_param_named(collector, lldd_max_execute_num, int, S_IRUGO);
MODULE_PARM_DESC(collector, "\n"
	"\tIf greater than one, tells the SAS Layer to run in Task Collector\n"
	"\tMode.  If 1 or 0, tells the SAS Layer to run in Direct Mode.\n"
	"\tThe mvsas SAS LLDD supports both modes.\n"
	"\tDefault: 1 (Direct Mode).\n");

int interrupt_coalescing = 0x80;

static struct scsi_transport_template *mvs_stt;
struct kmem_cache *mvs_task_list_cache;
static const struct mvs_chip_info mvs_chips[] = {
	[chip_6320] =	{ 1, 2, 0x400, 17, 16, 6,  9, &mvs_64xx_dispatch, },
	[chip_6440] =	{ 1, 4, 0x400, 17, 16, 6,  9, &mvs_64xx_dispatch, },
	[chip_6485] =	{ 1, 8, 0x800, 33, 32, 6, 10, &mvs_64xx_dispatch, },
	[chip_9180] =	{ 2, 4, 0x800, 17, 64, 8,  9, &mvs_94xx_dispatch, },
	[chip_9480] =	{ 2, 4, 0x800, 17, 64, 8,  9, &mvs_94xx_dispatch, },
	[chip_9445] =	{ 1, 4, 0x800, 17, 64, 8, 11, &mvs_94xx_dispatch, },
	[chip_9485] =	{ 2, 4, 0x800, 17, 64, 8, 11, &mvs_94xx_dispatch, },
	[chip_1300] =	{ 1, 4, 0x400, 17, 16, 6,  9, &mvs_64xx_dispatch, },
	[chip_1320] =	{ 2, 4, 0x800, 17, 64, 8,  9, &mvs_94xx_dispatch, },
};

struct device_attribute *mvst_host_attrs[];

#define SOC_SAS_NUM 2

static struct scsi_host_template mvs_sht = {
	.module			= THIS_MODULE,
	.name			= DRV_NAME,
	.queuecommand		= sas_queuecommand,
	.target_alloc		= sas_target_alloc,
	.slave_configure	= sas_slave_configure,
	.scan_finished		= mvs_scan_finished,
	.scan_start		= mvs_scan_start,
	.change_queue_depth	= sas_change_queue_depth,
	.change_queue_type	= sas_change_queue_type,
	.bios_param		= sas_bios_param,
	.can_queue		= 1,
	.cmd_per_lun		= 1,
	.this_id		= -1,
	.sg_tablesize		= SG_ALL,
	.max_sectors		= SCSI_DEFAULT_MAX_SECTORS,
	.use_clustering		= ENABLE_CLUSTERING,
	.eh_device_reset_handler = sas_eh_device_reset_handler,
	.eh_bus_reset_handler	= sas_eh_bus_reset_handler,
	.slave_alloc		= sas_slave_alloc,
	.target_destroy		= sas_target_destroy,
	.ioctl			= sas_ioctl,
	.shost_attrs		= mvst_host_attrs,
};

static struct sas_domain_function_template mvs_transport_ops = {
	.lldd_dev_found 	= mvs_dev_found,
	.lldd_dev_gone		= mvs_dev_gone,
	.lldd_execute_task	= mvs_queue_command,
	.lldd_control_phy	= mvs_phy_control,

	.lldd_abort_task	= mvs_abort_task,
	.lldd_abort_task_set    = mvs_abort_task_set,
	.lldd_clear_aca         = mvs_clear_aca,
	.lldd_clear_task_set    = mvs_clear_task_set,
	.lldd_I_T_nexus_reset	= mvs_I_T_nexus_reset,
	.lldd_lu_reset 		= mvs_lu_reset,
	.lldd_query_task	= mvs_query_task,
	.lldd_port_formed	= mvs_port_formed,
	.lldd_port_deformed     = mvs_port_deformed,

};

static void __devinit mvs_phy_init(struct mvs_info *mvi, int phy_id)
{
	struct mvs_phy *phy = &mvi->phy[phy_id];
	struct asd_sas_phy *sas_phy = &phy->sas_phy;

	phy->mvi = mvi;
	phy->port = NULL;
	init_timer(&phy->timer);
	sas_phy->enabled = (phy_id < mvi->chip->n_phy) ? 1 : 0;
	sas_phy->class = SAS;
	sas_phy->iproto = SAS_PROTOCOL_ALL;
	sas_phy->tproto = 0;
	sas_phy->type = PHY_TYPE_PHYSICAL;
	sas_phy->role = PHY_ROLE_INITIATOR;
	sas_phy->oob_mode = OOB_NOT_CONNECTED;
	sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN;

	sas_phy->id = phy_id;
	sas_phy->sas_addr = &mvi->sas_addr[0];
	sas_phy->frame_rcvd = &phy->frame_rcvd[0];
	sas_phy->ha = (struct sas_ha_struct *)mvi->shost->hostdata;
	sas_phy->lldd_phy = phy;
}

static void mvs_free(struct mvs_info *<