[linux-2.6-block.git] / drivers / message / fusion / mptfc.c

/*
 *  linux/drivers/message/fusion/mptfc.c
 *      For use with LSI Logic PCI chip/adapter(s)
 *      running LSI Logic Fusion MPT (Message Passing Technology) firmware.
 *
 *  Copyright (c) 1999-2005 LSI Logic Corporation
 *  (mailto:mpt_linux_developer@lsil.com)
 *
 */
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
    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.

    NO WARRANTY
    THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
    CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
    LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
    MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
    solely responsible for determining the appropriateness of using and
    distributing the Program and assumes all risks associated with its
    exercise of rights under this Agreement, including but not limited to
    the risks and costs of program errors, damage to or loss of data,
    programs or equipment, and unavailability or interruption of operations.

    DISCLAIMER OF LIABILITY
    NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
    TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
    USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
    HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES

    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_compat.h"	/* linux-2.6 tweaks */
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/kdev_t.h>
#include <linux/blkdev.h>
#include <linux/delay.h>	/* for mdelay */
#include <linux/interrupt.h>	/* needed for in_interrupt() proto */
#include <linux/reboot.h>	/* notifier code */
#include <linux/sched.h>
#include <linux/workqueue.h>

#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_tcq.h>

#include "mptbase.h"
#include "mptscsih.h"

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
#define my_NAME		"Fusion MPT FC Host driver"
#define my_VERSION	MPT_LINUX_VERSION_COMMON
#define MYNAM		"mptfc"

MODULE_AUTHOR(MODULEAUTHOR);
MODULE_DESCRIPTION(my_NAME);
MODULE_LICENSE("GPL");

/* Command line args */
static int mpt_pq_filter = 0;
module_param(mpt_pq_filter, int, 0);
MODULE_PARM_DESC(mpt_pq_filter, " Enable peripheral qualifier filter: enable=1  (default=0)");

static int	mptfcDoneCtx = -1;
static int	mptfcTaskCtx = -1;
static int	mptfcInternalCtx = -1; /* Used only for internal commands */

static struct scsi_host_template mptfc_driver_template = {
	.module				= THIS_MODULE,
	.proc_name			= "mptfc",
	.proc_info			= mptscsih_proc_info,
	.name				= "MPT FC Host",
	.info				= mptscsih_info,
	.queuecommand			= mptscsih_qcmd,
	.slave_alloc			= mptscsih_slave_alloc,
	.slave_configure		= mptscsih_slave_configure,
	.slave_destroy			= mptscsih_slave_destroy,
	.change_queue_depth 		= mptscsih_change_queue_depth,
	.eh_abort_handler		= mptscsih_abort,
	.eh_device_reset_handler	= mptscsih_dev_reset,
	.eh_bus_reset_handler		= mptscsih_bus_reset,
	.eh_host_reset_handler		= mptscsih_host_reset,
	.bios_param			= mptscsih_bios_param,
	.can_queue			= MPT_FC_CAN_QUEUE,
	.this_id			= -1,
	.sg_tablesize			= MPT_SCSI_SG_DEPTH,
	.max_sectors			= 8192,
	.cmd_per_lun			= 7,
	.use_clustering			= ENABLE_CLUSTERING,
};

/****************************************************************************
 * Supported hardware
 */

static struct pci_device_id mptfc_pci_table[] = {
	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC909,
		PCI_ANY_ID, PCI_ANY_ID },
	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC919,
		PCI_ANY_ID, PCI_ANY_ID },
	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC929,
		PCI_ANY_ID, PCI_ANY_ID },
	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC919X,
		PCI_ANY_ID, PCI_ANY_ID },
	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC929X,
		PCI_ANY_ID, PCI_ANY_ID },
	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC939X,
		PCI_ANY_ID, PCI_ANY_ID },
	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC949X,
		PCI_ANY_ID, PCI_ANY_ID },
	{0}	/* Terminating entry */
};
MODULE_DEVICE_TABLE(pci, mptfc_pci_table);

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
 *	mptfc_probe - Installs scsi devices per bus.
 *	@pdev: Pointer to pci_dev structure
 *
 *	Returns 0 for success, non-zero for failure.
 *
 */
static int
mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
	struct Scsi_Host	*sh;
	MPT_SCSI_HOST		*hd;
	MPT_ADAPTER 		*ioc;
	unsigned long		 flags;
	int			 sz, ii;
	int			 numSGE = 0;
	int			 scale;
	int			 ioc_cap;
	u8			*mem;
	int			error=0;
	int			r;
		
	if ((r = mpt_attach(pdev,id)) != 0)
		return r;
	
	ioc = pci_get_drvdata(pdev);
	ioc->DoneCtx = mptfcDoneCtx;
	ioc->TaskCtx = mptfcTaskCtx;
	ioc->InternalCtx = mptfcInternalCtx;

	/*  Added sanity check on readiness of the MPT adapter.
	 */
	if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
		printk(MYIOC_s_WARN_FMT
		  "Skipping because it's not operational!\n",
		  ioc->name);
		error = -ENODEV;
		goto out_mptfc_probe;
	}

	if (!ioc->active) {
		printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
		  ioc->name);
		error = -ENODEV;
		goto out_mptfc_probe;
	}

	/*  Sanity check - ensure at least 1 port is INITIATOR capable
	 */
	ioc_cap = 0;
	for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
		if (ioc->pfacts[ii].ProtocolFlags &
		    MPI_PORTFACTS_PROTOCOL_INITIATOR)
			ioc_cap ++;
	}

	if (!ioc_cap) {
		printk(MYIOC_s_WARN_FMT
			"Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
			ioc->name, ioc);
		return 0;
	}

	sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST));

	if (!sh) {
		printk(MYIOC_s_WARN_FMT
			"Unable to register controller with SCSI subsystem\n",
			ioc->name);
		error = -1;
		goto out_mptfc_probe;
        }

	spin_lock_irqsave(&ioc->FreeQlock, flags);

	/* Attach the SCSI Host to the IOC structure
	 */
	ioc->sh = sh;

	sh->io_port = 0;
	sh->n_io_port = 0;
	sh->irq = 0;

	/* set 16 byte cdb's */
	sh->max_cmd_len = 16;

	sh->max_id = MPT_MAX_FC_DEVICES<256 ? MPT_MAX_FC_DEVICES : 255;

	sh->max_lun = MPT_LAST_LUN + 1;
	sh->max_channel = 0;
	sh->this_id = ioc->pfacts[0].PortSCSIID;

	/* Required entry.
	 */
	sh->unique_id = ioc->id;

	/* Verify that we won't exceed the maximum
	 * number of chain buffers
	 * We can optimize:  ZZ = req_sz/sizeof(SGE)
	 * For 32bit SGE's:
	 *  numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
	 *               + (req_sz - 64)/sizeof(SGE)
	 * A slightly different algorithm is required for
	 * 64bit SGEs.
	 */
	scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32));
	if (sizeof(dma_addr_t) == sizeof(u64)) {
		numSGE = (scale - 1) *
		  (ioc->facts.MaxChainDepth-1) + scale +
		  (ioc->req_sz - 60) / (sizeof(dma_addr_t) +
		  sizeof(u32));
	} else {
		numSGE = 1 + (scale - 1) *
		  (ioc->facts.MaxChainDepth-1) + scale +
		  (ioc->req_sz - 64) / (sizeof(dma_addr_t) +
		  sizeof(u32));
	}

	if (numSGE < sh->sg_tablesize) {
		/* Reset this value */
		dprintk((MYIOC_s_INFO_FMT
		  "Resetting sg_tablesize to %d from %d\n",
		  ioc->name, numSGE, sh->sg_tablesize));
		sh->sg_tablesize = numSGE;
	}

	spin_unlock_irqrestore(&ioc->FreeQlock, flags);

	hd = (MPT_SCSI_HOST *) sh->hostdata;
	hd->ioc = ioc;

	/* SCSI needs scsi_cmnd lookup table!
	 * (with size equal to req_depth*PtrSz!)
	 */
	sz = ioc->req_depth * sizeof(void *);
	mem = kmalloc(sz, GFP_ATOMIC);
	if (mem == NULL) {
		error = -ENOMEM;
		goto out_mptfc_probe;
	}

	memset(mem, 0, sz);
	hd->ScsiLookup = (struct scsi_cmnd **) mem;

	dprintk((MYIOC_s_INFO_FMT "ScsiLookup @ %p, sz=%d\n",
		 ioc->name, hd->ScsiLookup, sz));

	/* Allocate memory for the device structures.
	 * A non-Null pointer at an offset
	 * indicates a device exists.
	 * max_id = 1 + maximum id (hosts.h)
	 */
	sz = sh->max_id * sizeof(void *);
	mem = kmalloc(sz, GFP_ATOMIC);
	if (mem == NULL) {
		error = -ENOMEM;
		goto out_mptfc_probe;
	}

	memset(mem, 0, sz);
	hd->Targets = (VirtDevice **) mem;

	dprintk((KERN_INFO
	  "  Targets @ %p, sz=%d\n", hd->Targets, sz));

	/* Clear the TM flags
	 */
	hd->tmPending = 0;
	hd->tmState = TM_STATE_NONE;
	hd->resetPending = 0;
	hd->abortSCpnt = NULL;

	/* Clear the pointer used to store
	 * single-threaded commands, i.e., those
	 * issued during a bus scan, dv and
	 * configuration pages.
	 */
	hd->cmdPtr = NULL;

	/* Initialize this SCSI Hosts' timers
	 * To use, set the timer expires field
	 * and add_timer
	 */
	init_timer(&hd->timer);
	hd->timer.data = (unsigned long) hd;
	hd->timer.function = mptscsih_timer_expired;

	hd->mpt_pq_filter = mpt_pq_filter;

	ddvprintk((MYIOC_s_INFO_FMT
		"mpt_pq_filter %x\n",
		ioc->name, 
		mpt_pq_filter));

	init_waitqueue_head(&hd->scandv_waitq);
	hd->scandv_wait_done = 0;
	hd->last_queue_full = 0;

	error = scsi_add_host (sh, &ioc->pcidev->dev);
	if(error) {
		dprintk((KERN_ERR MYNAM
		  "scsi_add_host failed\n"));
		goto out_mptfc_probe;
	}

	scsi_scan_host(sh);
	return 0;

out_mptfc_probe:

	mptscsih_remove(pdev);
	return error;
}

static struct pci_driver mptfc_driver = {
	.name		= "mptfc",
	.id_table	= mptfc_pci_table,
	.probe		= mptfc_probe,
	.remove		= __devexit_p(mptscsih_remove),
	.shutdown	= mptscsih_shutdown,
#ifdef CONFIG_PM
	.suspend	= mptscsih_suspend,
	.resume		= mptscsih_resume,
#endif
};

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/**
 *	mptfc_init - Register MPT adapter(s) as SCSI host(s) with
 *	linux scsi mid-layer.
 *
 *	Returns 0 for success, non-zero for failure.
 */
static int __init
mptfc_init(void)
{

	show_mptmod_ver(my_NAME, my_VERSION);

	mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER);
	mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER);
	mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER);

	if (mpt_event_register(mptfcDoneCtx, mptscsih_event_process) == 0) {
		devtprintk((KERN_INFO MYNAM
		  ": Registered for IOC event notifications\n"));
	}

	if (mpt_reset_register(mptfcDoneCtx, mptscsih_ioc_reset) == 0) {
		dprintk((KERN_INFO MYNAM
		  ": Registered for IOC reset notifications\n"));
	}

	return pci_register_driver(&mptfc_driver);
}

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/**
 *	mptfc_exit - Unregisters MPT adapter(s)
 *
 */
static void __exit
mptfc_exit(void)
{
	pci_unregister_driver(&mptfc_driver);
	
	mpt_reset_deregister(mptfcDoneCtx);
	dprintk((KERN_INFO MYNAM
	  ": Deregistered for IOC reset notifications\n"));

	mpt_event_deregister(mptfcDoneCtx);
	dprintk((KERN_INFO MYNAM
	  ": Deregistered for IOC event notifications\n"));

	mpt_deregister(mptfcInternalCtx);
	mpt_deregister(mptfcTaskCtx);
	mpt_deregister(mptfcDoneCtx);
}

module_init(mptfc_init);
module_exit(mptfc_exit);
Commit	Line	Data
2496af39 MED	1	/*
	2	* linux/drivers/message/fusion/mptfc.c
	3	* For use with LSI Logic PCI chip/adapter(s)
	4	* running LSI Logic Fusion MPT (Message Passing Technology) firmware.
	5	*
	6	* Copyright (c) 1999-2005 LSI Logic Corporation
	7	* (mailto:mpt_linux_developer@lsil.com)
	8	*
	9	*/
	10	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
	11	/*
	12	This program is free software; you can redistribute it and/or modify
	13	it under the terms of the GNU General Public License as published by
	14	the Free Software Foundation; version 2 of the License.
	15
	16	This program is distributed in the hope that it will be useful,
	17	but WITHOUT ANY WARRANTY; without even the implied warranty of
	18	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	19	GNU General Public License for more details.
	20
	21	NO WARRANTY
	22	THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
	23	CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
	24	LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
	25	MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
	26	solely responsible for determining the appropriateness of using and
	27	distributing the Program and assumes all risks associated with its
	28	exercise of rights under this Agreement, including but not limited to
	29	the risks and costs of program errors, damage to or loss of data,
	30	programs or equipment, and unavailability or interruption of operations.
	31
	32	DISCLAIMER OF LIABILITY
	33	NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
	34	DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	35	DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
	36	ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
	37	TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
	38	USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
	39	HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
	40
	41	You should have received a copy of the GNU General Public License
	42	along with this program; if not, write to the Free Software
	43	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	44	*/
	45	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
	46	#include "linux_compat.h" /* linux-2.6 tweaks */
	47	#include <linux/module.h>
	48	#include <linux/kernel.h>
	49	#include <linux/init.h>
	50	#include <linux/errno.h>
	51	#include <linux/kdev_t.h>
	52	#include <linux/blkdev.h>
	53	#include <linux/delay.h> /* for mdelay */
	54	#include <linux/interrupt.h> /* needed for in_interrupt() proto */
	55	#include <linux/reboot.h> /* notifier code */
	56	#include <linux/sched.h>
	57	#include <linux/workqueue.h>
	58
	59	#include <scsi/scsi.h>
	60	#include <scsi/scsi_cmnd.h>
	61	#include <scsi/scsi_device.h>
	62	#include <scsi/scsi_host.h>
	63	#include <scsi/scsi_tcq.h>
	64
65	#include "mptbase.h"
66	#include "mptscsih.h"
67
68	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
69	#define my_NAME "Fusion MPT FC Host driver"
70	#define my_VERSION MPT_LINUX_VERSION_COMMON
71	#define MYNAM "mptfc"
72
73	MODULE_AUTHOR(MODULEAUTHOR);
74	MODULE_DESCRIPTION(my_NAME);
75	MODULE_LICENSE("GPL");
76
77	/* Command line args */
78	static int mpt_pq_filter = 0;
79	module_param(mpt_pq_filter, int, 0);
80	MODULE_PARM_DESC(mpt_pq_filter, " Enable peripheral qualifier filter: enable=1 (default=0)");
81
82	static int mptfcDoneCtx = -1;
83	static int mptfcTaskCtx = -1;
84	static int mptfcInternalCtx = -1; /* Used only for internal commands */
85
2496af39	86	static struct scsi_host_template mptfc_driver_template = {
f78496da	87	.module = THIS_MODULE,
2496af39 MED	88	.proc_name = "mptfc",
	89	.proc_info = mptscsih_proc_info,
	90	.name = "MPT FC Host",
	91	.info = mptscsih_info,
	92	.queuecommand = mptscsih_qcmd,
	93	.slave_alloc = mptscsih_slave_alloc,
	94	.slave_configure = mptscsih_slave_configure,
	95	.slave_destroy = mptscsih_slave_destroy,
6e3815ba	96	.change_queue_depth = mptscsih_change_queue_depth,
2496af39 MED	97	.eh_abort_handler = mptscsih_abort,
	98	.eh_device_reset_handler = mptscsih_dev_reset,
	99	.eh_bus_reset_handler = mptscsih_bus_reset,
	100	.eh_host_reset_handler = mptscsih_host_reset,
	101	.bios_param = mptscsih_bios_param,
	102	.can_queue = MPT_FC_CAN_QUEUE,
	103	.this_id = -1,
	104	.sg_tablesize = MPT_SCSI_SG_DEPTH,
	105	.max_sectors = 8192,
	106	.cmd_per_lun = 7,
	107	.use_clustering = ENABLE_CLUSTERING,
2496af39 MED	108	};
	109
	110	/****************************************************************************
	111	* Supported hardware
	112	*/
	113
	114	static struct pci_device_id mptfc_pci_table[] = {
	115	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC909,
	116	PCI_ANY_ID, PCI_ANY_ID },
	117	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC919,
	118	PCI_ANY_ID, PCI_ANY_ID },
	119	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC929,
	120	PCI_ANY_ID, PCI_ANY_ID },
	121	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC919X,
	122	PCI_ANY_ID, PCI_ANY_ID },
	123	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC929X,
	124	PCI_ANY_ID, PCI_ANY_ID },
3fadc59d MED	125	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC939X,
	126	PCI_ANY_ID, PCI_ANY_ID },
	127	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC949X,
	128	PCI_ANY_ID, PCI_ANY_ID },
2496af39 MED	129	{0} /* Terminating entry */
	130	};
	131	MODULE_DEVICE_TABLE(pci, mptfc_pci_table);
	132
	133	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
	134	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
	135	/*
	136	* mptfc_probe - Installs scsi devices per bus.
	137	* @pdev: Pointer to pci_dev structure
	138	*
	139	* Returns 0 for success, non-zero for failure.
	140	*
	141	*/
	142	static int
	143	mptfc_probe(struct pci_dev pdev, const struct pci_device_id id)
	144	{
	145	struct Scsi_Host *sh;
	146	MPT_SCSI_HOST *hd;
	147	MPT_ADAPTER *ioc;
	148	unsigned long flags;
	149	int sz, ii;
	150	int numSGE = 0;
	151	int scale;
	152	int ioc_cap;
	153	u8 *mem;
	154	int error=0;
	155	int r;
	156
	157	if ((r = mpt_attach(pdev,id)) != 0)
	158	return r;
	159
	160	ioc = pci_get_drvdata(pdev);
d335cc38 MED	161	ioc->DoneCtx = mptfcDoneCtx;
	162	ioc->TaskCtx = mptfcTaskCtx;
	163	ioc->InternalCtx = mptfcInternalCtx;
2496af39 MED	164
	165	/* Added sanity check on readiness of the MPT adapter.
	166	*/
	167	if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
	168	printk(MYIOC_s_WARN_FMT
	169	"Skipping because it's not operational!\n",
	170	ioc->name);
7acec1e7 MED	171	error = -ENODEV;
7acec1e7 MED	172	goto out_mptfc_probe;
2496af39 MED	173	}
	174
	175	if (!ioc->active) {
	176	printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
	177	ioc->name);
7acec1e7 MED	178	error = -ENODEV;
7acec1e7 MED	179	goto out_mptfc_probe;
2496af39 MED	180	}
	181
	182	/* Sanity check - ensure at least 1 port is INITIATOR capable
	183	*/
	184	ioc_cap = 0;
	185	for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
	186	if (ioc->pfacts[ii].ProtocolFlags &
	187	MPI_PORTFACTS_PROTOCOL_INITIATOR)
	188	ioc_cap ++;
	189	}
	190
	191	if (!ioc_cap) {
	192	printk(MYIOC_s_WARN_FMT
	193	"Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
	194	ioc->name, ioc);
466544d8	195	return 0;
2496af39 MED	196	}
	197
	198	sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST));
	199
	200	if (!sh) {
	201	printk(MYIOC_s_WARN_FMT
	202	"Unable to register controller with SCSI subsystem\n",
	203	ioc->name);
7acec1e7 MED	204	error = -1;
7acec1e7 MED	205	goto out_mptfc_probe;
2496af39 MED	206	}
	207
	208	spin_lock_irqsave(&ioc->FreeQlock, flags);
	209
	210	/* Attach the SCSI Host to the IOC structure
	211	*/
	212	ioc->sh = sh;
	213
	214	sh->io_port = 0;
	215	sh->n_io_port = 0;
	216	sh->irq = 0;
	217
	218	/* set 16 byte cdb's */
	219	sh->max_cmd_len = 16;
	220
	221	sh->max_id = MPT_MAX_FC_DEVICES<256 ? MPT_MAX_FC_DEVICES : 255;
	222
	223	sh->max_lun = MPT_LAST_LUN + 1;
	224	sh->max_channel = 0;
	225	sh->this_id = ioc->pfacts[0].PortSCSIID;
	226
	227	/* Required entry.
	228	*/
	229	sh->unique_id = ioc->id;
	230
	231	/* Verify that we won't exceed the maximum
	232	* number of chain buffers
	233	* We can optimize: ZZ = req_sz/sizeof(SGE)
	234	* For 32bit SGE's:
	235	* numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
	236	* + (req_sz - 64)/sizeof(SGE)
	237	* A slightly different algorithm is required for
	238	* 64bit SGEs.
	239	*/
	240	scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32));
	241	if (sizeof(dma_addr_t) == sizeof(u64)) {
	242	numSGE = (scale - 1) *
	243	(ioc->facts.MaxChainDepth-1) + scale +
	244	(ioc->req_sz - 60) / (sizeof(dma_addr_t) +
	245	sizeof(u32));
	246	} else {
	247	numSGE = 1 + (scale - 1) *
	248	(ioc->facts.MaxChainDepth-1) + scale +
	249	(ioc->req_sz - 64) / (sizeof(dma_addr_t) +
	250	sizeof(u32));
	251	}
	252
	253	if (numSGE < sh->sg_tablesize) {
	254	/* Reset this value */
	255	dprintk((MYIOC_s_INFO_FMT
	256	"Resetting sg_tablesize to %d from %d\n",
	257	ioc->name, numSGE, sh->sg_tablesize));
	258	sh->sg_tablesize = numSGE;
	259	}
	260
2496af39 MED	261	spin_unlock_irqrestore(&ioc->FreeQlock, flags);
	262
	263	hd = (MPT_SCSI_HOST *) sh->hostdata;
	264	hd->ioc = ioc;
	265
	266	/* SCSI needs scsi_cmnd lookup table!
	267	* (with size equal to req_depth*PtrSz!)
	268	*/
	269	sz = ioc->req_depth * sizeof(void *);
	270	mem = kmalloc(sz, GFP_ATOMIC);
	271	if (mem == NULL) {
	272	error = -ENOMEM;
7acec1e7	273	goto out_mptfc_probe;
2496af39 MED	274	}
	275
	276	memset(mem, 0, sz);
	277	hd->ScsiLookup = (struct scsi_cmnd **) mem;
	278
	279	dprintk((MYIOC_s_INFO_FMT "ScsiLookup @ %p, sz=%d\n",
	280	ioc->name, hd->ScsiLookup, sz));
	281
	282	/* Allocate memory for the device structures.
	283	* A non-Null pointer at an offset
	284	* indicates a device exists.
	285	* max_id = 1 + maximum id (hosts.h)
	286	*/
	287	sz = sh->max_id * sizeof(void *);
	288	mem = kmalloc(sz, GFP_ATOMIC);
	289	if (mem == NULL) {
	290	error = -ENOMEM;
7acec1e7	291	goto out_mptfc_probe;
2496af39 MED	292	}
	293
	294	memset(mem, 0, sz);
	295	hd->Targets = (VirtDevice **) mem;
	296
	297	dprintk((KERN_INFO
	298	" Targets @ %p, sz=%d\n", hd->Targets, sz));
	299
	300	/* Clear the TM flags
	301	*/
	302	hd->tmPending = 0;
	303	hd->tmState = TM_STATE_NONE;
	304	hd->resetPending = 0;
	305	hd->abortSCpnt = NULL;
	306
	307	/* Clear the pointer used to store
	308	* single-threaded commands, i.e., those
	309	* issued during a bus scan, dv and
	310	* configuration pages.
	311	*/
	312	hd->cmdPtr = NULL;
	313
	314	/* Initialize this SCSI Hosts' timers
	315	* To use, set the timer expires field
	316	* and add_timer
	317	*/
	318	init_timer(&hd->timer);
	319	hd->timer.data = (unsigned long) hd;
	320	hd->timer.function = mptscsih_timer_expired;
	321
2496af39 MED	322	hd->mpt_pq_filter = mpt_pq_filter;
	323
	324	ddvprintk((MYIOC_s_INFO_FMT
	325	"mpt_pq_filter %x\n",
	326	ioc->name,
	327	mpt_pq_filter));
	328
	329	init_waitqueue_head(&hd->scandv_waitq);
	330	hd->scandv_wait_done = 0;
	331	hd->last_queue_full = 0;
	332
	333	error = scsi_add_host (sh, &ioc->pcidev->dev);
	334	if(error) {
	335	dprintk((KERN_ERR MYNAM
	336	"scsi_add_host failed\n"));
7acec1e7	337	goto out_mptfc_probe;
2496af39 MED	338	}
	339
	340	scsi_scan_host(sh);
	341	return 0;
	342
7acec1e7	343	out_mptfc_probe:
2496af39 MED	344
	345	mptscsih_remove(pdev);
	346	return error;
	347	}
	348
	349	static struct pci_driver mptfc_driver = {
	350	.name = "mptfc",
	351	.id_table = mptfc_pci_table,
	352	.probe = mptfc_probe,
	353	.remove = __devexit_p(mptscsih_remove),
d18c3db5	354	.shutdown = mptscsih_shutdown,
2496af39 MED	355	#ifdef CONFIG_PM
	356	.suspend = mptscsih_suspend,
	357	.resume = mptscsih_resume,
	358	#endif
	359	};
	360
	361	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
	362	/**
	363	* mptfc_init - Register MPT adapter(s) as SCSI host(s) with
	364	* linux scsi mid-layer.
	365	*
	366	* Returns 0 for success, non-zero for failure.
	367	*/
	368	static int __init
	369	mptfc_init(void)
	370	{
	371
	372	show_mptmod_ver(my_NAME, my_VERSION);
	373
	374	mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER);
	375	mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER);
	376	mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER);
	377
	378	if (mpt_event_register(mptfcDoneCtx, mptscsih_event_process) == 0) {
	379	devtprintk((KERN_INFO MYNAM
	380	": Registered for IOC event notifications\n"));
	381	}
	382
	383	if (mpt_reset_register(mptfcDoneCtx, mptscsih_ioc_reset) == 0) {
	384	dprintk((KERN_INFO MYNAM
	385	": Registered for IOC reset notifications\n"));
	386	}
	387
	388	return pci_register_driver(&mptfc_driver);
	389	}
	390
	391	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
	392	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
	393	/**
	394	* mptfc_exit - Unregisters MPT adapter(s)
	395	*
	396	*/
	397	static void __exit
	398	mptfc_exit(void)
	399	{
	400	pci_unregister_driver(&mptfc_driver);
	401
	402	mpt_reset_deregister(mptfcDoneCtx);
	403	dprintk((KERN_INFO MYNAM
	404	": Deregistered for IOC reset notifications\n"));
	405
	406	mpt_event_deregister(mptfcDoneCtx);
	407	dprintk((KERN_INFO MYNAM
	408	": Deregistered for IOC event notifications\n"));
	409
	410	mpt_deregister(mptfcInternalCtx);
	411	mpt_deregister(mptfcTaskCtx);
	412	mpt_deregister(mptfcDoneCtx);
	413	}
	414
	415	module_init(mptfc_init);
	416	module_exit(mptfc_exit);