[mirror_ubuntu-bionic-kernel.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 device_attribute mptfc_queue_depth_attr = {
	.attr = {
		.name = 	"queue_depth",
		.mode =		S_IWUSR,
	},
	.store = mptscsih_store_queue_depth,
};

static struct device_attribute *mptfc_dev_attrs[] = {
	&mptfc_queue_depth_attr,
	NULL,
};

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,
	.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,
	.sdev_attrs			= mptfc_dev_attrs,
};

/****************************************************************************
 * 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;
	}

	/* Set the pci device pointer in Scsi_Host structure.
	 */
	scsi_set_device(sh, &ioc->pcidev->dev);

	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),
	.driver         = {
		.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
86	static struct device_attribute mptfc_queue_depth_attr = {
87	.attr = {
88	.name = "queue_depth",
89	.mode = S_IWUSR,
90	},
91	.store = mptscsih_store_queue_depth,
92	};
93
94	static struct device_attribute *mptfc_dev_attrs[] = {
95	&mptfc_queue_depth_attr,
96	NULL,
97	};
98
99	static struct scsi_host_template mptfc_driver_template = {
100	.proc_name = "mptfc",
101	.proc_info = mptscsih_proc_info,
102	.name = "MPT FC Host",
103	.info = mptscsih_info,
104	.queuecommand = mptscsih_qcmd,
105	.slave_alloc = mptscsih_slave_alloc,
106	.slave_configure = mptscsih_slave_configure,
107	.slave_destroy = mptscsih_slave_destroy,
108	.eh_abort_handler = mptscsih_abort,
109	.eh_device_reset_handler = mptscsih_dev_reset,
110	.eh_bus_reset_handler = mptscsih_bus_reset,
111	.eh_host_reset_handler = mptscsih_host_reset,
112	.bios_param = mptscsih_bios_param,
113	.can_queue = MPT_FC_CAN_QUEUE,
114	.this_id = -1,
115	.sg_tablesize = MPT_SCSI_SG_DEPTH,
116	.max_sectors = 8192,
117	.cmd_per_lun = 7,
118	.use_clustering = ENABLE_CLUSTERING,
119	.sdev_attrs = mptfc_dev_attrs,
120	};
121
122	/****************************************************************************
123	* Supported hardware
124	*/
125
126	static struct pci_device_id mptfc_pci_table[] = {
127	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC909,
128	PCI_ANY_ID, PCI_ANY_ID },
129	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC919,
130	PCI_ANY_ID, PCI_ANY_ID },
131	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC929,
132	PCI_ANY_ID, PCI_ANY_ID },
133	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC919X,
134	PCI_ANY_ID, PCI_ANY_ID },
135	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC929X,
136	PCI_ANY_ID, PCI_ANY_ID },
3fadc59d MED	137	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC939X,
	138	PCI_ANY_ID, PCI_ANY_ID },
	139	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FC949X,
	140	PCI_ANY_ID, PCI_ANY_ID },
2496af39 MED	141	{0} /* Terminating entry */
	142	};
	143	MODULE_DEVICE_TABLE(pci, mptfc_pci_table);
	144
	145	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
	146	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
	147	/*
	148	* mptfc_probe - Installs scsi devices per bus.
	149	* @pdev: Pointer to pci_dev structure
	150	*
	151	* Returns 0 for success, non-zero for failure.
	152	*
	153	*/
	154	static int
	155	mptfc_probe(struct pci_dev pdev, const struct pci_device_id id)
	156	{
	157	struct Scsi_Host *sh;
	158	MPT_SCSI_HOST *hd;
	159	MPT_ADAPTER *ioc;
	160	unsigned long flags;
	161	int sz, ii;
	162	int numSGE = 0;
	163	int scale;
	164	int ioc_cap;
	165	u8 *mem;
	166	int error=0;
	167	int r;
	168
	169	if ((r = mpt_attach(pdev,id)) != 0)
	170	return r;
	171
	172	ioc = pci_get_drvdata(pdev);
d335cc38 MED	173	ioc->DoneCtx = mptfcDoneCtx;
	174	ioc->TaskCtx = mptfcTaskCtx;
	175	ioc->InternalCtx = mptfcInternalCtx;
2496af39 MED	176
	177	/* Added sanity check on readiness of the MPT adapter.
	178	*/
	179	if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
	180	printk(MYIOC_s_WARN_FMT
	181	"Skipping because it's not operational!\n",
	182	ioc->name);
	183	return -ENODEV;
	184	}
	185
	186	if (!ioc->active) {
	187	printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
	188	ioc->name);
	189	return -ENODEV;
	190	}
	191
	192	/* Sanity check - ensure at least 1 port is INITIATOR capable
	193	*/
	194	ioc_cap = 0;
	195	for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
	196	if (ioc->pfacts[ii].ProtocolFlags &
	197	MPI_PORTFACTS_PROTOCOL_INITIATOR)
	198	ioc_cap ++;
	199	}
	200
	201	if (!ioc_cap) {
	202	printk(MYIOC_s_WARN_FMT
	203	"Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n",
	204	ioc->name, ioc);
	205	return -ENODEV;
	206	}
	207
	208	sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST));
	209
	210	if (!sh) {
	211	printk(MYIOC_s_WARN_FMT
	212	"Unable to register controller with SCSI subsystem\n",
	213	ioc->name);
	214	return -1;
	215	}
	216
	217	spin_lock_irqsave(&ioc->FreeQlock, flags);
	218
	219	/* Attach the SCSI Host to the IOC structure
	220	*/
	221	ioc->sh = sh;
	222
	223	sh->io_port = 0;
	224	sh->n_io_port = 0;
	225	sh->irq = 0;
	226
	227	/* set 16 byte cdb's */
	228	sh->max_cmd_len = 16;
	229
	230	sh->max_id = MPT_MAX_FC_DEVICES<256 ? MPT_MAX_FC_DEVICES : 255;
	231
	232	sh->max_lun = MPT_LAST_LUN + 1;
	233	sh->max_channel = 0;
	234	sh->this_id = ioc->pfacts[0].PortSCSIID;
	235
	236	/* Required entry.
	237	*/
	238	sh->unique_id = ioc->id;
	239
240	/* Verify that we won't exceed the maximum
241	* number of chain buffers
242	* We can optimize: ZZ = req_sz/sizeof(SGE)
243	* For 32bit SGE's:
244	* numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
245	* + (req_sz - 64)/sizeof(SGE)
246	* A slightly different algorithm is required for
247	* 64bit SGEs.
248	*/
249	scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32));
250	if (sizeof(dma_addr_t) == sizeof(u64)) {
251	numSGE = (scale - 1) *
252	(ioc->facts.MaxChainDepth-1) + scale +
253	(ioc->req_sz - 60) / (sizeof(dma_addr_t) +
254	sizeof(u32));
255	} else {
256	numSGE = 1 + (scale - 1) *
257	(ioc->facts.MaxChainDepth-1) + scale +
258	(ioc->req_sz - 64) / (sizeof(dma_addr_t) +
259	sizeof(u32));
260	}
261
262	if (numSGE < sh->sg_tablesize) {
263	/* Reset this value */
264	dprintk((MYIOC_s_INFO_FMT
265	"Resetting sg_tablesize to %d from %d\n",
266	ioc->name, numSGE, sh->sg_tablesize));
267	sh->sg_tablesize = numSGE;
268	}
269
270	/* Set the pci device pointer in Scsi_Host structure.
271	*/
272	scsi_set_device(sh, &ioc->pcidev->dev);
273
274	spin_unlock_irqrestore(&ioc->FreeQlock, flags);
275
276	hd = (MPT_SCSI_HOST *) sh->hostdata;
277	hd->ioc = ioc;
278
279	/* SCSI needs scsi_cmnd lookup table!
280	* (with size equal to req_depth*PtrSz!)
281	*/
282	sz = ioc->req_depth * sizeof(void *);
283	mem = kmalloc(sz, GFP_ATOMIC);
284	if (mem == NULL) {
285	error = -ENOMEM;
286	goto mptfc_probe_failed;
287	}
288
289	memset(mem, 0, sz);
290	hd->ScsiLookup = (struct scsi_cmnd **) mem;
291
292	dprintk((MYIOC_s_INFO_FMT "ScsiLookup @ %p, sz=%d\n",
293	ioc->name, hd->ScsiLookup, sz));
294
295	/* Allocate memory for the device structures.
296	* A non-Null pointer at an offset
297	* indicates a device exists.
298	* max_id = 1 + maximum id (hosts.h)
299	*/
300	sz = sh->max_id * sizeof(void *);
301	mem = kmalloc(sz, GFP_ATOMIC);
302	if (mem == NULL) {
303	error = -ENOMEM;
304	goto mptfc_probe_failed;
305	}
306
307	memset(mem, 0, sz);
308	hd->Targets = (VirtDevice **) mem;
309
310	dprintk((KERN_INFO
311	" Targets @ %p, sz=%d\n", hd->Targets, sz));
312
313	/* Clear the TM flags
314	*/
315	hd->tmPending = 0;
316	hd->tmState = TM_STATE_NONE;
317	hd->resetPending = 0;
318	hd->abortSCpnt = NULL;
319
320	/* Clear the pointer used to store
321	* single-threaded commands, i.e., those
322	* issued during a bus scan, dv and
323	* configuration pages.
324	*/
325	hd->cmdPtr = NULL;
326
327	/* Initialize this SCSI Hosts' timers
328	* To use, set the timer expires field
329	* and add_timer
330	*/
331	init_timer(&hd->timer);
332	hd->timer.data = (unsigned long) hd;
333	hd->timer.function = mptscsih_timer_expired;
334
2496af39 MED	335	hd->mpt_pq_filter = mpt_pq_filter;
	336
	337	ddvprintk((MYIOC_s_INFO_FMT
	338	"mpt_pq_filter %x\n",
	339	ioc->name,
	340	mpt_pq_filter));
	341
	342	init_waitqueue_head(&hd->scandv_waitq);
	343	hd->scandv_wait_done = 0;
	344	hd->last_queue_full = 0;
	345
	346	error = scsi_add_host (sh, &ioc->pcidev->dev);
	347	if(error) {
	348	dprintk((KERN_ERR MYNAM
	349	"scsi_add_host failed\n"));
	350	goto mptfc_probe_failed;
	351	}
	352
	353	scsi_scan_host(sh);
	354	return 0;
	355
	356	mptfc_probe_failed:
	357
	358	mptscsih_remove(pdev);
	359	return error;
	360	}
	361
	362	static struct pci_driver mptfc_driver = {
	363	.name = "mptfc",
	364	.id_table = mptfc_pci_table,
	365	.probe = mptfc_probe,
	366	.remove = __devexit_p(mptscsih_remove),
	367	.driver = {
	368	.shutdown = mptscsih_shutdown,
	369	},
	370	#ifdef CONFIG_PM
	371	.suspend = mptscsih_suspend,
	372	.resume = mptscsih_resume,
	373	#endif
	374	};
	375
	376	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
	377	/**
	378	* mptfc_init - Register MPT adapter(s) as SCSI host(s) with
	379	* linux scsi mid-layer.
	380	*
	381	* Returns 0 for success, non-zero for failure.
	382	*/
	383	static int __init
	384	mptfc_init(void)
	385	{
	386
	387	show_mptmod_ver(my_NAME, my_VERSION);
	388
	389	mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER);
	390	mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER);
	391	mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER);
	392
	393	if (mpt_event_register(mptfcDoneCtx, mptscsih_event_process) == 0) {
	394	devtprintk((KERN_INFO MYNAM
	395	": Registered for IOC event notifications\n"));
	396	}
	397
	398	if (mpt_reset_register(mptfcDoneCtx, mptscsih_ioc_reset) == 0) {
399	dprintk((KERN_INFO MYNAM
400	": Registered for IOC reset notifications\n"));
401	}
402
403	return pci_register_driver(&mptfc_driver);
404	}
405
406	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
407	/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
408	/**
409	* mptfc_exit - Unregisters MPT adapter(s)
410	*
411	*/
412	static void __exit
413	mptfc_exit(void)
414	{
415	pci_unregister_driver(&mptfc_driver);
416
417	mpt_reset_deregister(mptfcDoneCtx);
418	dprintk((KERN_INFO MYNAM
419	": Deregistered for IOC reset notifications\n"));
420
421	mpt_event_deregister(mptfcDoneCtx);
422	dprintk((KERN_INFO MYNAM
423	": Deregistered for IOC event notifications\n"));
424
425	mpt_deregister(mptfcInternalCtx);
426	mpt_deregister(mptfcTaskCtx);
427	mpt_deregister(mptfcDoneCtx);
428	}
429
430	module_init(mptfc_init);
431	module_exit(mptfc_exit);