[deliverable/linux.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,
	.target_alloc			= mptscsih_target_alloc,
	.slave_alloc			= mptscsih_slave_alloc,
	.slave_configure		= mptscsih_slave_configure,
	.target_destroy			= mptscsih_target_destroy,
	.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			 ii;
	int			 numSGE = 0;
	int			 scale;
	int			 ioc_cap;
	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!)
	 */
	hd->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
	if (!hd->ScsiLookup) {
		error = -ENOMEM;
		goto out_mptfc_probe;
	}

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

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

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

	/* 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,
c7c82987	93	.target_alloc = mptscsih_target_alloc,
2496af39 MED	94	.slave_alloc = mptscsih_slave_alloc,
2496af39 MED	95	.slave_configure = mptscsih_slave_configure,
c7c82987	96	.target_destroy = mptscsih_target_destroy,
2496af39	97	.slave_destroy = mptscsih_slave_destroy,
6e3815ba	98	.change_queue_depth = mptscsih_change_queue_depth,
2496af39 MED	99	.eh_abort_handler = mptscsih_abort,
	100	.eh_device_reset_handler = mptscsih_dev_reset,
	101	.eh_bus_reset_handler = mptscsih_bus_reset,
	102	.eh_host_reset_handler = mptscsih_host_reset,
	103	.bios_param = mptscsih_bios_param,
	104	.can_queue = MPT_FC_CAN_QUEUE,
	105	.this_id = -1,
	106	.sg_tablesize = MPT_SCSI_SG_DEPTH,
	107	.max_sectors = 8192,
	108	.cmd_per_lun = 7,
	109	.use_clustering = ENABLE_CLUSTERING,
2496af39 MED	110	};
	111
	112	/****************************************************************************
	113	* Supported hardware
	114	*/
	115
	116	static struct pci_device_id mptfc_pci_table[] = {
	117	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC909,
	118	PCI_ANY_ID, PCI_ANY_ID },
	119	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC919,
	120	PCI_ANY_ID, PCI_ANY_ID },
	121	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC929,
	122	PCI_ANY_ID, PCI_ANY_ID },
	123	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC919X,
	124	PCI_ANY_ID, PCI_ANY_ID },
	125	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC929X,
	126	PCI_ANY_ID, PCI_ANY_ID },
3fadc59d MED	127	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC939X,
	128	PCI_ANY_ID, PCI_ANY_ID },
	129	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC949X,
	130	PCI_ANY_ID, PCI_ANY_ID },
2496af39 MED	131	{0} /* Terminating entry */
	132	};
	133	MODULE_DEVICE_TABLE(pci, mptfc_pci_table);
	134
	135	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
	136	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
	137	/*
	138	* mptfc_probe - Installs scsi devices per bus.
	139	* @pdev: Pointer to pci_dev structure
	140	*
	141	* Returns 0 for success, non-zero for failure.
	142	*
	143	*/
	144	static int
	145	mptfc_probe(struct pci_dev pdev, const struct pci_device_id id)
	146	{
	147	struct Scsi_Host *sh;
	148	MPT_SCSI_HOST *hd;
	149	MPT_ADAPTER *ioc;
	150	unsigned long flags;
1ca00bb7	151	int ii;
2496af39 MED	152	int numSGE = 0;
	153	int scale;
	154	int ioc_cap;
2496af39 MED	155	int error=0;
	156	int r;
	157
	158	if ((r = mpt_attach(pdev,id)) != 0)
	159	return r;
	160
	161	ioc = pci_get_drvdata(pdev);
d335cc38 MED	162	ioc->DoneCtx = mptfcDoneCtx;
	163	ioc->TaskCtx = mptfcTaskCtx;
	164	ioc->InternalCtx = mptfcInternalCtx;
2496af39 MED	165
	166	/* Added sanity check on readiness of the MPT adapter.
	167	*/
	168	if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
	169	printk(MYIOC_s_WARN_FMT
	170	"Skipping because it's not operational!\n",
	171	ioc->name);
7acec1e7 MED	172	error = -ENODEV;
7acec1e7 MED	173	goto out_mptfc_probe;
2496af39 MED	174	}
	175
	176	if (!ioc->active) {
	177	printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
	178	ioc->name);
7acec1e7 MED	179	error = -ENODEV;
7acec1e7 MED	180	goto out_mptfc_probe;
2496af39 MED	181	}
	182
	183	/* Sanity check - ensure at least 1 port is INITIATOR capable
	184	*/
	185	ioc_cap = 0;
	186	for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
	187	if (ioc->pfacts[ii].ProtocolFlags &
	188	MPI_PORTFACTS_PROTOCOL_INITIATOR)
	189	ioc_cap ++;
	190	}
	191
	192	if (!ioc_cap) {
	193	printk(MYIOC_s_WARN_FMT
	194	"Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
	195	ioc->name, ioc);
466544d8	196	return 0;
2496af39 MED	197	}
	198
	199	sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST));
	200
	201	if (!sh) {
	202	printk(MYIOC_s_WARN_FMT
	203	"Unable to register controller with SCSI subsystem\n",
	204	ioc->name);
7acec1e7 MED	205	error = -1;
7acec1e7 MED	206	goto out_mptfc_probe;
2496af39 MED	207	}
	208
	209	spin_lock_irqsave(&ioc->FreeQlock, flags);
	210
	211	/* Attach the SCSI Host to the IOC structure
	212	*/
	213	ioc->sh = sh;
	214
	215	sh->io_port = 0;
	216	sh->n_io_port = 0;
	217	sh->irq = 0;
	218
	219	/* set 16 byte cdb's */
	220	sh->max_cmd_len = 16;
	221
	222	sh->max_id = MPT_MAX_FC_DEVICES<256 ? MPT_MAX_FC_DEVICES : 255;
	223
	224	sh->max_lun = MPT_LAST_LUN + 1;
	225	sh->max_channel = 0;
	226	sh->this_id = ioc->pfacts[0].PortSCSIID;
	227
	228	/* Required entry.
	229	*/
	230	sh->unique_id = ioc->id;
	231
	232	/* Verify that we won't exceed the maximum
	233	* number of chain buffers
	234	* We can optimize: ZZ = req_sz/sizeof(SGE)
	235	* For 32bit SGE's:
	236	* numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
	237	* + (req_sz - 64)/sizeof(SGE)
	238	* A slightly different algorithm is required for
	239	* 64bit SGEs.
	240	*/
	241	scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32));
	242	if (sizeof(dma_addr_t) == sizeof(u64)) {
	243	numSGE = (scale - 1) *
	244	(ioc->facts.MaxChainDepth-1) + scale +
	245	(ioc->req_sz - 60) / (sizeof(dma_addr_t) +
	246	sizeof(u32));
	247	} else {
	248	numSGE = 1 + (scale - 1) *
	249	(ioc->facts.MaxChainDepth-1) + scale +
	250	(ioc->req_sz - 64) / (sizeof(dma_addr_t) +
	251	sizeof(u32));
	252	}
	253
	254	if (numSGE < sh->sg_tablesize) {
	255	/* Reset this value */
	256	dprintk((MYIOC_s_INFO_FMT
	257	"Resetting sg_tablesize to %d from %d\n",
	258	ioc->name, numSGE, sh->sg_tablesize));
	259	sh->sg_tablesize = numSGE;
	260	}
	261
2496af39 MED	262	spin_unlock_irqrestore(&ioc->FreeQlock, flags);
	263
	264	hd = (MPT_SCSI_HOST *) sh->hostdata;
	265	hd->ioc = ioc;
	266
	267	/* SCSI needs scsi_cmnd lookup table!
	268	* (with size equal to req_depth*PtrSz!)
	269	*/
1ca00bb7 CH	270	hd->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
1ca00bb7 CH	271	if (!hd->ScsiLookup) {
2496af39	272	error = -ENOMEM;
7acec1e7	273	goto out_mptfc_probe;
2496af39 MED	274	}
2496af39 MED	275
1ca00bb7 CH	276	dprintk((MYIOC_s_INFO_FMT "ScsiLookup @ %p\n",
1ca00bb7 CH	277	ioc->name, hd->ScsiLookup));
2496af39 MED	278
	279	/* Allocate memory for the device structures.
	280	* A non-Null pointer at an offset
	281	* indicates a device exists.
	282	* max_id = 1 + maximum id (hosts.h)
	283	*/
1ca00bb7 CH	284	hd->Targets = kcalloc(sh->max_id, sizeof(void *), GFP_ATOMIC);
1ca00bb7 CH	285	if (!hd->Targets) {
2496af39	286	error = -ENOMEM;
7acec1e7	287	goto out_mptfc_probe;
2496af39 MED	288	}
2496af39 MED	289
1ca00bb7	290	dprintk((KERN_INFO " vdev @ %p\n", hd->Targets));
2496af39 MED	291
	292	/* Clear the TM flags
	293	*/
	294	hd->tmPending = 0;
	295	hd->tmState = TM_STATE_NONE;
	296	hd->resetPending = 0;
	297	hd->abortSCpnt = NULL;
	298
	299	/* Clear the pointer used to store
	300	* single-threaded commands, i.e., those
	301	* issued during a bus scan, dv and
	302	* configuration pages.
	303	*/
	304	hd->cmdPtr = NULL;
	305
	306	/* Initialize this SCSI Hosts' timers
	307	* To use, set the timer expires field
	308	* and add_timer
	309	*/
	310	init_timer(&hd->timer);
	311	hd->timer.data = (unsigned long) hd;
	312	hd->timer.function = mptscsih_timer_expired;
	313
2496af39 MED	314	hd->mpt_pq_filter = mpt_pq_filter;
	315
	316	ddvprintk((MYIOC_s_INFO_FMT
	317	"mpt_pq_filter %x\n",
	318	ioc->name,
	319	mpt_pq_filter));
	320
	321	init_waitqueue_head(&hd->scandv_waitq);
	322	hd->scandv_wait_done = 0;
	323	hd->last_queue_full = 0;
	324
	325	error = scsi_add_host (sh, &ioc->pcidev->dev);
	326	if(error) {
	327	dprintk((KERN_ERR MYNAM
	328	"scsi_add_host failed\n"));
7acec1e7	329	goto out_mptfc_probe;
2496af39 MED	330	}
	331
	332	scsi_scan_host(sh);
	333	return 0;
	334
7acec1e7	335	out_mptfc_probe:
2496af39 MED	336
	337	mptscsih_remove(pdev);
	338	return error;
	339	}
	340
	341	static struct pci_driver mptfc_driver = {
	342	.name = "mptfc",
	343	.id_table = mptfc_pci_table,
	344	.probe = mptfc_probe,
	345	.remove = __devexit_p(mptscsih_remove),
d18c3db5	346	.shutdown = mptscsih_shutdown,
2496af39 MED	347	#ifdef CONFIG_PM
	348	.suspend = mptscsih_suspend,
	349	.resume = mptscsih_resume,
	350	#endif
	351	};
	352
	353	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
	354	/**
	355	* mptfc_init - Register MPT adapter(s) as SCSI host(s) with
	356	* linux scsi mid-layer.
	357	*
	358	* Returns 0 for success, non-zero for failure.
	359	*/
	360	static int __init
	361	mptfc_init(void)
	362	{
	363
	364	show_mptmod_ver(my_NAME, my_VERSION);
	365
	366	mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER);
	367	mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER);
	368	mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER);
	369
	370	if (mpt_event_register(mptfcDoneCtx, mptscsih_event_process) == 0) {
	371	devtprintk((KERN_INFO MYNAM
	372	": Registered for IOC event notifications\n"));
	373	}
	374
	375	if (mpt_reset_register(mptfcDoneCtx, mptscsih_ioc_reset) == 0) {
	376	dprintk((KERN_INFO MYNAM
	377	": Registered for IOC reset notifications\n"));
	378	}
	379
	380	return pci_register_driver(&mptfc_driver);
	381	}
	382
	383	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
	384	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
	385	/**
	386	* mptfc_exit - Unregisters MPT adapter(s)
	387	*
	388	*/
	389	static void __exit
	390	mptfc_exit(void)
	391	{
	392	pci_unregister_driver(&mptfc_driver);
	393
	394	mpt_reset_deregister(mptfcDoneCtx);
	395	dprintk((KERN_INFO MYNAM
	396	": Deregistered for IOC reset notifications\n"));
	397
	398	mpt_event_deregister(mptfcDoneCtx);
	399	dprintk((KERN_INFO MYNAM
	400	": Deregistered for IOC event notifications\n"));
	401
	402	mpt_deregister(mptfcInternalCtx);
	403	mpt_deregister(mptfcTaskCtx);
	404	mpt_deregister(mptfcDoneCtx);
	405	}
	406
	407	module_init(mptfc_init);
	408	module_exit(mptfc_exit);