[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);
		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 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);
                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	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);
	171	return -ENODEV;
	172	}
	173
	174	if (!ioc->active) {
	175	printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
	176	ioc->name);
	177	return -ENODEV;
	178	}
	179
	180	/* Sanity check - ensure at least 1 port is INITIATOR capable
	181	*/
	182	ioc_cap = 0;
	183	for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
	184	if (ioc->pfacts[ii].ProtocolFlags &
	185	MPI_PORTFACTS_PROTOCOL_INITIATOR)
	186	ioc_cap ++;
	187	}
	188
	189	if (!ioc_cap) {
	190	printk(MYIOC_s_WARN_FMT
	191	"Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
	192	ioc->name, ioc);
466544d8	193	return 0;
2496af39 MED	194	}
	195
	196	sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST));
	197
	198	if (!sh) {
	199	printk(MYIOC_s_WARN_FMT
	200	"Unable to register controller with SCSI subsystem\n",
	201	ioc->name);
	202	return -1;
	203	}
	204
	205	spin_lock_irqsave(&ioc->FreeQlock, flags);
	206
	207	/* Attach the SCSI Host to the IOC structure
	208	*/
	209	ioc->sh = sh;
	210
	211	sh->io_port = 0;
	212	sh->n_io_port = 0;
	213	sh->irq = 0;
	214
	215	/* set 16 byte cdb's */
	216	sh->max_cmd_len = 16;
	217
	218	sh->max_id = MPT_MAX_FC_DEVICES<256 ? MPT_MAX_FC_DEVICES : 255;
	219
	220	sh->max_lun = MPT_LAST_LUN + 1;
	221	sh->max_channel = 0;
	222	sh->this_id = ioc->pfacts[0].PortSCSIID;
	223
	224	/* Required entry.
	225	*/
	226	sh->unique_id = ioc->id;
	227
	228	/* Verify that we won't exceed the maximum
	229	* number of chain buffers
	230	* We can optimize: ZZ = req_sz/sizeof(SGE)
	231	* For 32bit SGE's:
	232	* numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
	233	* + (req_sz - 64)/sizeof(SGE)
	234	* A slightly different algorithm is required for
	235	* 64bit SGEs.
	236	*/
	237	scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32));
	238	if (sizeof(dma_addr_t) == sizeof(u64)) {
	239	numSGE = (scale - 1) *
	240	(ioc->facts.MaxChainDepth-1) + scale +
	241	(ioc->req_sz - 60) / (sizeof(dma_addr_t) +
	242	sizeof(u32));
	243	} else {
	244	numSGE = 1 + (scale - 1) *
	245	(ioc->facts.MaxChainDepth-1) + scale +
	246	(ioc->req_sz - 64) / (sizeof(dma_addr_t) +
	247	sizeof(u32));
	248	}
	249
	250	if (numSGE < sh->sg_tablesize) {
	251	/* Reset this value */
	252	dprintk((MYIOC_s_INFO_FMT
	253	"Resetting sg_tablesize to %d from %d\n",
	254	ioc->name, numSGE, sh->sg_tablesize));
	255	sh->sg_tablesize = numSGE;
	256	}
	257
2496af39 MED	258	spin_unlock_irqrestore(&ioc->FreeQlock, flags);
	259
	260	hd = (MPT_SCSI_HOST *) sh->hostdata;
	261	hd->ioc = ioc;
	262
	263	/* SCSI needs scsi_cmnd lookup table!
	264	* (with size equal to req_depth*PtrSz!)
	265	*/
	266	sz = ioc->req_depth * sizeof(void *);
	267	mem = kmalloc(sz, GFP_ATOMIC);
	268	if (mem == NULL) {
	269	error = -ENOMEM;
	270	goto mptfc_probe_failed;
	271	}
	272
	273	memset(mem, 0, sz);
	274	hd->ScsiLookup = (struct scsi_cmnd **) mem;
	275
	276	dprintk((MYIOC_s_INFO_FMT "ScsiLookup @ %p, sz=%d\n",
	277	ioc->name, hd->ScsiLookup, sz));
	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	*/
	284	sz = sh->max_id * sizeof(void *);
	285	mem = kmalloc(sz, GFP_ATOMIC);
	286	if (mem == NULL) {
	287	error = -ENOMEM;
	288	goto mptfc_probe_failed;
	289	}
	290
	291	memset(mem, 0, sz);
	292	hd->Targets = (VirtDevice **) mem;
	293
	294	dprintk((KERN_INFO
	295	" Targets @ %p, sz=%d\n", hd->Targets, sz));
	296
	297	/* Clear the TM flags
	298	*/
	299	hd->tmPending = 0;
	300	hd->tmState = TM_STATE_NONE;
	301	hd->resetPending = 0;
	302	hd->abortSCpnt = NULL;
	303
	304	/* Clear the pointer used to store
	305	* single-threaded commands, i.e., those
	306	* issued during a bus scan, dv and
	307	* configuration pages.
	308	*/
	309	hd->cmdPtr = NULL;
	310
	311	/* Initialize this SCSI Hosts' timers
	312	* To use, set the timer expires field
	313	* and add_timer
	314	*/
	315	init_timer(&hd->timer);
	316	hd->timer.data = (unsigned long) hd;
	317	hd->timer.function = mptscsih_timer_expired;
	318
2496af39 MED	319	hd->mpt_pq_filter = mpt_pq_filter;
	320
	321	ddvprintk((MYIOC_s_INFO_FMT
	322	"mpt_pq_filter %x\n",
	323	ioc->name,
	324	mpt_pq_filter));
	325
	326	init_waitqueue_head(&hd->scandv_waitq);
	327	hd->scandv_wait_done = 0;
	328	hd->last_queue_full = 0;
	329
	330	error = scsi_add_host (sh, &ioc->pcidev->dev);
	331	if(error) {
	332	dprintk((KERN_ERR MYNAM
	333	"scsi_add_host failed\n"));
	334	goto mptfc_probe_failed;
	335	}
	336
	337	scsi_scan_host(sh);
	338	return 0;
	339
	340	mptfc_probe_failed:
	341
	342	mptscsih_remove(pdev);
	343	return error;
	344	}
	345
	346	static struct pci_driver mptfc_driver = {
	347	.name = "mptfc",
	348	.id_table = mptfc_pci_table,
	349	.probe = mptfc_probe,
	350	.remove = __devexit_p(mptscsih_remove),
d18c3db5	351	.shutdown = mptscsih_shutdown,
2496af39 MED	352	#ifdef CONFIG_PM
	353	.suspend = mptscsih_suspend,
	354	.resume = mptscsih_resume,
	355	#endif
	356	};
	357
	358	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
	359	/**
	360	* mptfc_init - Register MPT adapter(s) as SCSI host(s) with
	361	* linux scsi mid-layer.
	362	*
	363	* Returns 0 for success, non-zero for failure.
	364	*/
	365	static int __init
	366	mptfc_init(void)
	367	{
	368
	369	show_mptmod_ver(my_NAME, my_VERSION);
	370
	371	mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER);
	372	mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER);
	373	mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER);
	374
	375	if (mpt_event_register(mptfcDoneCtx, mptscsih_event_process) == 0) {
	376	devtprintk((KERN_INFO MYNAM
	377	": Registered for IOC event notifications\n"));
	378	}
	379
	380	if (mpt_reset_register(mptfcDoneCtx, mptscsih_ioc_reset) == 0) {
	381	dprintk((KERN_INFO MYNAM
	382	": Registered for IOC reset notifications\n"));
	383	}
	384
	385	return pci_register_driver(&mptfc_driver);
	386	}
	387
	388	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
	389	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
	390	/**
	391	* mptfc_exit - Unregisters MPT adapter(s)
	392	*
	393	*/
	394	static void __exit
	395	mptfc_exit(void)
	396	{
	397	pci_unregister_driver(&mptfc_driver);
	398
	399	mpt_reset_deregister(mptfcDoneCtx);
	400	dprintk((KERN_INFO MYNAM
	401	": Deregistered for IOC reset notifications\n"));
	402
	403	mpt_event_deregister(mptfcDoneCtx);
	404	dprintk((KERN_INFO MYNAM
	405	": Deregistered for IOC event notifications\n"));
	406
	407	mpt_deregister(mptfcInternalCtx);
	408	mpt_deregister(mptfcTaskCtx);
	409	mpt_deregister(mptfcDoneCtx);
	410	}
	411
	412	module_init(mptfc_init);
	413	module_exit(mptfc_exit);