413 lines
12 KiB
C
413 lines
12 KiB
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);
|