[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 = {
	.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);
		return -ENODEV;
	}

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

	/*  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 -ENODEV;
	}

	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);
                return -1;
        }

	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 mptfc_probe_failed;
	}

	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 mptfc_probe_failed;
	}

	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 mptfc_probe_failed;
	}

	scsi_scan_host(sh);
	return 0;

mptfc_probe_failed:

	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 MED	86	static struct scsi_host_template mptfc_driver_template = {
	87	.proc_name = "mptfc",
	88	.proc_info = mptscsih_proc_info,
	89	.name = "MPT FC Host",
	90	.info = mptscsih_info,
	91	.queuecommand = mptscsih_qcmd,
	92	.slave_alloc = mptscsih_slave_alloc,
	93	.slave_configure = mptscsih_slave_configure,
	94	.slave_destroy = mptscsih_slave_destroy,
6e3815ba	95	.change_queue_depth = mptscsih_change_queue_depth,
2496af39 MED	96	.eh_abort_handler = mptscsih_abort,
	97	.eh_device_reset_handler = mptscsih_dev_reset,
	98	.eh_bus_reset_handler = mptscsih_bus_reset,
	99	.eh_host_reset_handler = mptscsih_host_reset,
	100	.bios_param = mptscsih_bios_param,
	101	.can_queue = MPT_FC_CAN_QUEUE,
	102	.this_id = -1,
	103	.sg_tablesize = MPT_SCSI_SG_DEPTH,
	104	.max_sectors = 8192,
	105	.cmd_per_lun = 7,
	106	.use_clustering = ENABLE_CLUSTERING,
2496af39 MED	107	};
	108
	109	/****************************************************************************
	110	* Supported hardware
	111	*/
	112
	113	static struct pci_device_id mptfc_pci_table[] = {
	114	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC909,
	115	PCI_ANY_ID, PCI_ANY_ID },
	116	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC919,
	117	PCI_ANY_ID, PCI_ANY_ID },
	118	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC929,
	119	PCI_ANY_ID, PCI_ANY_ID },
	120	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC919X,
	121	PCI_ANY_ID, PCI_ANY_ID },
	122	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC929X,
	123	PCI_ANY_ID, PCI_ANY_ID },
3fadc59d MED	124	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC939X,
	125	PCI_ANY_ID, PCI_ANY_ID },
	126	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC949X,
	127	PCI_ANY_ID, PCI_ANY_ID },
2496af39 MED	128	{0} /* Terminating entry */
	129	};
	130	MODULE_DEVICE_TABLE(pci, mptfc_pci_table);
	131
	132	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
	133	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
	134	/*
	135	* mptfc_probe - Installs scsi devices per bus.
	136	* @pdev: Pointer to pci_dev structure
	137	*
	138	* Returns 0 for success, non-zero for failure.
	139	*
	140	*/
	141	static int
	142	mptfc_probe(struct pci_dev pdev, const struct pci_device_id id)
	143	{
	144	struct Scsi_Host *sh;
	145	MPT_SCSI_HOST *hd;
	146	MPT_ADAPTER *ioc;
	147	unsigned long flags;
	148	int sz, ii;
	149	int numSGE = 0;
	150	int scale;
	151	int ioc_cap;
	152	u8 *mem;
	153	int error=0;
	154	int r;
	155
	156	if ((r = mpt_attach(pdev,id)) != 0)
	157	return r;
	158
	159	ioc = pci_get_drvdata(pdev);
d335cc38 MED	160	ioc->DoneCtx = mptfcDoneCtx;
	161	ioc->TaskCtx = mptfcTaskCtx;
	162	ioc->InternalCtx = mptfcInternalCtx;
2496af39 MED	163
	164	/* Added sanity check on readiness of the MPT adapter.
	165	*/
	166	if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
	167	printk(MYIOC_s_WARN_FMT
	168	"Skipping because it's not operational!\n",
	169	ioc->name);
	170	return -ENODEV;
	171	}
	172
	173	if (!ioc->active) {
	174	printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
	175	ioc->name);
	176	return -ENODEV;
	177	}
	178
	179	/* Sanity check - ensure at least 1 port is INITIATOR capable
	180	*/
	181	ioc_cap = 0;
	182	for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
	183	if (ioc->pfacts[ii].ProtocolFlags &
	184	MPI_PORTFACTS_PROTOCOL_INITIATOR)
	185	ioc_cap ++;
	186	}
	187
	188	if (!ioc_cap) {
	189	printk(MYIOC_s_WARN_FMT
	190	"Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
	191	ioc->name, ioc);
	192	return -ENODEV;
	193	}
	194
	195	sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST));
	196
	197	if (!sh) {
	198	printk(MYIOC_s_WARN_FMT
	199	"Unable to register controller with SCSI subsystem\n",
	200	ioc->name);
	201	return -1;
	202	}
	203
	204	spin_lock_irqsave(&ioc->FreeQlock, flags);
	205
	206	/* Attach the SCSI Host to the IOC structure
	207	*/
	208	ioc->sh = sh;
	209
	210	sh->io_port = 0;
	211	sh->n_io_port = 0;
	212	sh->irq = 0;
	213
	214	/* set 16 byte cdb's */
	215	sh->max_cmd_len = 16;
	216
	217	sh->max_id = MPT_MAX_FC_DEVICES<256 ? MPT_MAX_FC_DEVICES : 255;
	218
	219	sh->max_lun = MPT_LAST_LUN + 1;
	220	sh->max_channel = 0;
	221	sh->this_id = ioc->pfacts[0].PortSCSIID;
	222
	223	/* Required entry.
	224	*/
	225	sh->unique_id = ioc->id;
	226
227	/* Verify that we won't exceed the maximum
228	* number of chain buffers
229	* We can optimize: ZZ = req_sz/sizeof(SGE)
230	* For 32bit SGE's:
231	* numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
232	* + (req_sz - 64)/sizeof(SGE)
233	* A slightly different algorithm is required for
234	* 64bit SGEs.
235	*/
236	scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32));
237	if (sizeof(dma_addr_t) == sizeof(u64)) {
238	numSGE = (scale - 1) *
239	(ioc->facts.MaxChainDepth-1) + scale +
240	(ioc->req_sz - 60) / (sizeof(dma_addr_t) +
241	sizeof(u32));
242	} else {
243	numSGE = 1 + (scale - 1) *
244	(ioc->facts.MaxChainDepth-1) + scale +
245	(ioc->req_sz - 64) / (sizeof(dma_addr_t) +
246	sizeof(u32));
247	}
248
249	if (numSGE < sh->sg_tablesize) {
250	/* Reset this value */
251	dprintk((MYIOC_s_INFO_FMT
252	"Resetting sg_tablesize to %d from %d\n",
253	ioc->name, numSGE, sh->sg_tablesize));
254	sh->sg_tablesize = numSGE;
255	}
256
2496af39 MED	257	spin_unlock_irqrestore(&ioc->FreeQlock, flags);
	258
	259	hd = (MPT_SCSI_HOST *) sh->hostdata;
	260	hd->ioc = ioc;
	261
	262	/* SCSI needs scsi_cmnd lookup table!
	263	* (with size equal to req_depth*PtrSz!)
	264	*/
	265	sz = ioc->req_depth * sizeof(void *);
	266	mem = kmalloc(sz, GFP_ATOMIC);
	267	if (mem == NULL) {
	268	error = -ENOMEM;
	269	goto mptfc_probe_failed;
	270	}
	271
	272	memset(mem, 0, sz);
	273	hd->ScsiLookup = (struct scsi_cmnd **) mem;
	274
	275	dprintk((MYIOC_s_INFO_FMT "ScsiLookup @ %p, sz=%d\n",
	276	ioc->name, hd->ScsiLookup, sz));
	277
	278	/* Allocate memory for the device structures.
	279	* A non-Null pointer at an offset
	280	* indicates a device exists.
	281	* max_id = 1 + maximum id (hosts.h)
	282	*/
	283	sz = sh->max_id * sizeof(void *);
	284	mem = kmalloc(sz, GFP_ATOMIC);
	285	if (mem == NULL) {
	286	error = -ENOMEM;
	287	goto mptfc_probe_failed;
	288	}
	289
	290	memset(mem, 0, sz);
	291	hd->Targets = (VirtDevice **) mem;
	292
	293	dprintk((KERN_INFO
	294	" Targets @ %p, sz=%d\n", hd->Targets, sz));
	295
	296	/* Clear the TM flags
	297	*/
	298	hd->tmPending = 0;
	299	hd->tmState = TM_STATE_NONE;
	300	hd->resetPending = 0;
	301	hd->abortSCpnt = NULL;
	302
	303	/* Clear the pointer used to store
	304	* single-threaded commands, i.e., those
	305	* issued during a bus scan, dv and
	306	* configuration pages.
	307	*/
	308	hd->cmdPtr = NULL;
	309
	310	/* Initialize this SCSI Hosts' timers
	311	* To use, set the timer expires field
	312	* and add_timer
	313	*/
	314	init_timer(&hd->timer);
	315	hd->timer.data = (unsigned long) hd;
	316	hd->timer.function = mptscsih_timer_expired;
	317
2496af39 MED	318	hd->mpt_pq_filter = mpt_pq_filter;
	319
	320	ddvprintk((MYIOC_s_INFO_FMT
	321	"mpt_pq_filter %x\n",
	322	ioc->name,
	323	mpt_pq_filter));
	324
	325	init_waitqueue_head(&hd->scandv_waitq);
	326	hd->scandv_wait_done = 0;
	327	hd->last_queue_full = 0;
	328
	329	error = scsi_add_host (sh, &ioc->pcidev->dev);
	330	if(error) {
	331	dprintk((KERN_ERR MYNAM
	332	"scsi_add_host failed\n"));
	333	goto mptfc_probe_failed;
	334	}
	335
	336	scsi_scan_host(sh);
	337	return 0;
	338
	339	mptfc_probe_failed:
	340
	341	mptscsih_remove(pdev);
	342	return error;
	343	}
	344
	345	static struct pci_driver mptfc_driver = {
	346	.name = "mptfc",
	347	.id_table = mptfc_pci_table,
	348	.probe = mptfc_probe,
	349	.remove = __devexit_p(mptscsih_remove),
d18c3db5	350	.shutdown = mptscsih_shutdown,
2496af39 MED	351	#ifdef CONFIG_PM
	352	.suspend = mptscsih_suspend,
	353	.resume = mptscsih_resume,
	354	#endif
	355	};
	356
	357	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
	358	/**
	359	* mptfc_init - Register MPT adapter(s) as SCSI host(s) with
	360	* linux scsi mid-layer.
	361	*
	362	* Returns 0 for success, non-zero for failure.
	363	*/
	364	static int __init
	365	mptfc_init(void)
	366	{
	367
	368	show_mptmod_ver(my_NAME, my_VERSION);
	369
	370	mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER);
	371	mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER);
	372	mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER);
	373
	374	if (mpt_event_register(mptfcDoneCtx, mptscsih_event_process) == 0) {
	375	devtprintk((KERN_INFO MYNAM
	376	": Registered for IOC event notifications\n"));
	377	}
	378
	379	if (mpt_reset_register(mptfcDoneCtx, mptscsih_ioc_reset) == 0) {
	380	dprintk((KERN_INFO MYNAM
	381	": Registered for IOC reset notifications\n"));
	382	}
	383
	384	return pci_register_driver(&mptfc_driver);
	385	}
	386
	387	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
	388	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
	389	/**
	390	* mptfc_exit - Unregisters MPT adapter(s)
	391	*
	392	*/
	393	static void __exit
	394	mptfc_exit(void)
	395	{
	396	pci_unregister_driver(&mptfc_driver);
	397
	398	mpt_reset_deregister(mptfcDoneCtx);
	399	dprintk((KERN_INFO MYNAM
	400	": Deregistered for IOC reset notifications\n"));
	401
	402	mpt_event_deregister(mptfcDoneCtx);
	403	dprintk((KERN_INFO MYNAM
	404	": Deregistered for IOC event notifications\n"));
	405
	406	mpt_deregister(mptfcInternalCtx);
	407	mpt_deregister(mptfcTaskCtx);
	408	mpt_deregister(mptfcDoneCtx);
	409	}
	410
	411	module_init(mptfc_init);
	412	module_exit(mptfc_exit);