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Diffstat (limited to 'drivers/scsi/3w-9xxx.c')
-rw-r--r--drivers/scsi/3w-9xxx.c181
1 files changed, 154 insertions, 27 deletions
diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index 5311317c2e4..0a7325361d2 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -1,10 +1,11 @@
/*
3w-9xxx.c -- 3ware 9000 Storage Controller device driver for Linux.
- Written By: Adam Radford <linuxraid@amcc.com>
- Modifications By: Tom Couch <linuxraid@amcc.com>
+ Written By: Adam Radford <linuxraid@lsi.com>
+ Modifications By: Tom Couch <linuxraid@lsi.com>
- Copyright (C) 2004-2008 Applied Micro Circuits Corporation.
+ Copyright (C) 2004-2009 Applied Micro Circuits Corporation.
+ Copyright (C) 2010 LSI Corporation.
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
@@ -40,10 +41,10 @@
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Bugs/Comments/Suggestions should be mailed to:
- linuxraid@amcc.com
+ linuxraid@lsi.com
For more information, goto:
- http://www.amcc.com
+ http://www.lsi.com
Note: This version of the driver does not contain a bundled firmware
image.
@@ -75,6 +76,9 @@
Add MSI support and "use_msi" module parameter.
Fix bug in twa_get_param() on 4GB+.
Use pci_resource_len() for ioremap().
+ 2.26.02.012 - Add power management support.
+ 2.26.02.013 - Fix bug in twa_load_sgl().
+ 2.26.02.014 - Force 60 second timeout default.
*/
#include <linux/module.h>
@@ -88,7 +92,7 @@
#include <linux/pci.h>
#include <linux/time.h>
#include <linux/mutex.h>
-#include <linux/smp_lock.h>
+#include <linux/slab.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
@@ -99,14 +103,15 @@
#include "3w-9xxx.h"
/* Globals */
-#define TW_DRIVER_VERSION "2.26.02.011"
+#define TW_DRIVER_VERSION "2.26.02.014"
+static DEFINE_MUTEX(twa_chrdev_mutex);
static TW_Device_Extension *twa_device_extension_list[TW_MAX_SLOT];
static unsigned int twa_device_extension_count;
static int twa_major = -1;
extern struct timezone sys_tz;
/* Module parameters */
-MODULE_AUTHOR ("AMCC");
+MODULE_AUTHOR ("LSI");
MODULE_DESCRIPTION ("3ware 9000 Storage Controller Linux Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(TW_DRIVER_VERSION);
@@ -120,7 +125,7 @@ static void twa_aen_queue_event(TW_Device_Extension *tw_dev, TW_Command_Apache_H
static int twa_aen_read_queue(TW_Device_Extension *tw_dev, int request_id);
static char *twa_aen_severity_lookup(unsigned char severity_code);
static void twa_aen_sync_time(TW_Device_Extension *tw_dev, int request_id);
-static int twa_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg);
+static long twa_chrdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
static int twa_chrdev_open(struct inode *inode, struct file *file);
static int twa_fill_sense(TW_Device_Extension *tw_dev, int request_id, int copy_sense, int print_host);
static void twa_free_request_id(TW_Device_Extension *tw_dev,int request_id);
@@ -185,8 +190,12 @@ static ssize_t twa_show_stats(struct device *dev,
} /* End twa_show_stats() */
/* This function will set a devices queue depth */
-static int twa_change_queue_depth(struct scsi_device *sdev, int queue_depth)
+static int twa_change_queue_depth(struct scsi_device *sdev, int queue_depth,
+ int reason)
{
+ if (reason != SCSI_QDEPTH_DEFAULT)
+ return -EOPNOTSUPP;
+
if (queue_depth > TW_Q_LENGTH-2)
queue_depth = TW_Q_LENGTH-2;
scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth);
@@ -211,9 +220,10 @@ static struct device_attribute *twa_host_attrs[] = {
/* File operations struct for character device */
static const struct file_operations twa_fops = {
.owner = THIS_MODULE,
- .ioctl = twa_chrdev_ioctl,
+ .unlocked_ioctl = twa_chrdev_ioctl,
.open = twa_chrdev_open,
- .release = NULL
+ .release = NULL,
+ .llseek = noop_llseek,
};
/* This function will complete an aen request from the isr */
@@ -628,8 +638,9 @@ out:
} /* End twa_check_srl() */
/* This function handles ioctl for the character device */
-static int twa_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+static long twa_chrdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
+ struct inode *inode = file_inode(file);
long timeout;
unsigned long *cpu_addr, data_buffer_length_adjusted = 0, flags = 0;
dma_addr_t dma_handle;
@@ -648,6 +659,8 @@ static int twa_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int
int retval = TW_IOCTL_ERROR_OS_EFAULT;
void __user *argp = (void __user *)arg;
+ mutex_lock(&twa_chrdev_mutex);
+
/* Only let one of these through at a time */
if (mutex_lock_interruptible(&tw_dev->ioctl_lock)) {
retval = TW_IOCTL_ERROR_OS_EINTR;
@@ -731,7 +744,7 @@ static int twa_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int
break;
case TW_IOCTL_GET_COMPATIBILITY_INFO:
tw_ioctl->driver_command.status = 0;
- /* Copy compatiblity struct into ioctl data buffer */
+ /* Copy compatibility struct into ioctl data buffer */
tw_compat_info = (TW_Compatibility_Info *)tw_ioctl->data_buffer;
memcpy(tw_compat_info, &tw_dev->tw_compat_info, sizeof(TW_Compatibility_Info));
break;
@@ -867,6 +880,7 @@ out3:
out2:
mutex_unlock(&tw_dev->ioctl_lock);
out:
+ mutex_unlock(&twa_chrdev_mutex);
return retval;
} /* End twa_chrdev_ioctl() */
@@ -877,7 +891,6 @@ static int twa_chrdev_open(struct inode *inode, struct file *file)
unsigned int minor_number;
int retval = TW_IOCTL_ERROR_OS_ENODEV;
- cycle_kernel_lock();
minor_number = iminor(inode);
if (minor_number >= twa_device_extension_count)
goto out;
@@ -1377,10 +1390,12 @@ static void twa_load_sgl(TW_Device_Extension *tw_dev, TW_Command_Full *full_comm
newcommand = &full_command_packet->command.newcommand;
newcommand->request_id__lunl =
cpu_to_le16(TW_REQ_LUN_IN(TW_LUN_OUT(newcommand->request_id__lunl), request_id));
- newcommand->sg_list[0].address = TW_CPU_TO_SGL(dma_handle + sizeof(TW_Ioctl_Buf_Apache) - 1);
- newcommand->sg_list[0].length = cpu_to_le32(length);
+ if (length) {
+ newcommand->sg_list[0].address = TW_CPU_TO_SGL(dma_handle + sizeof(TW_Ioctl_Buf_Apache) - 1);
+ newcommand->sg_list[0].length = cpu_to_le32(length);
+ }
newcommand->sgl_entries__lunh =
- cpu_to_le16(TW_REQ_LUN_IN(TW_LUN_OUT(newcommand->sgl_entries__lunh), 1));
+ cpu_to_le16(TW_REQ_LUN_IN(TW_LUN_OUT(newcommand->sgl_entries__lunh), length ? 1 : 0));
} else {
oldcommand = &full_command_packet->command.oldcommand;
oldcommand->request_id = request_id;
@@ -1750,7 +1765,7 @@ out:
} /* End twa_scsi_eh_reset() */
/* This is the main scsi queue function to handle scsi opcodes */
-static int twa_scsi_queue(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
+static int twa_scsi_queue_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
{
int request_id, retval;
TW_Device_Extension *tw_dev = (TW_Device_Extension *)SCpnt->device->host->hostdata;
@@ -1785,10 +1800,12 @@ static int twa_scsi_queue(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd
switch (retval) {
case SCSI_MLQUEUE_HOST_BUSY:
twa_free_request_id(tw_dev, request_id);
+ twa_unmap_scsi_data(tw_dev, request_id);
break;
case 1:
tw_dev->state[request_id] = TW_S_COMPLETED;
twa_free_request_id(tw_dev, request_id);
+ twa_unmap_scsi_data(tw_dev, request_id);
SCpnt->result = (DID_ERROR << 16);
done(SCpnt);
retval = 0;
@@ -1797,6 +1814,8 @@ out:
return retval;
} /* End twa_scsi_queue() */
+static DEF_SCSI_QCMD(twa_scsi_queue)
+
/* This function hands scsi cdb's to the firmware */
static int twa_scsiop_execute_scsi(TW_Device_Extension *tw_dev, int request_id, char *cdb, int use_sg, TW_SG_Entry *sglistarg)
{
@@ -1977,9 +1996,19 @@ static void twa_unmap_scsi_data(TW_Device_Extension *tw_dev, int request_id)
{
struct scsi_cmnd *cmd = tw_dev->srb[request_id];
- scsi_dma_unmap(cmd);
+ if (cmd->SCp.phase == TW_PHASE_SGLIST)
+ scsi_dma_unmap(cmd);
} /* End twa_unmap_scsi_data() */
+/* This function gets called when a disk is coming on-line */
+static int twa_slave_configure(struct scsi_device *sdev)
+{
+ /* Force 60 second timeout */
+ blk_queue_rq_timeout(sdev->request_queue, 60 * HZ);
+
+ return 0;
+} /* End twa_slave_configure() */
+
/* scsi_host_template initializer */
static struct scsi_host_template driver_template = {
.module = THIS_MODULE,
@@ -1989,17 +2018,19 @@ static struct scsi_host_template driver_template = {
.bios_param = twa_scsi_biosparam,
.change_queue_depth = twa_change_queue_depth,
.can_queue = TW_Q_LENGTH-2,
+ .slave_configure = twa_slave_configure,
.this_id = -1,
.sg_tablesize = TW_APACHE_MAX_SGL_LENGTH,
.max_sectors = TW_MAX_SECTORS,
.cmd_per_lun = TW_MAX_CMDS_PER_LUN,
.use_clustering = ENABLE_CLUSTERING,
.shost_attrs = twa_host_attrs,
- .emulated = 1
+ .emulated = 1,
+ .no_write_same = 1,
};
/* This function will probe and initialize a card */
-static int __devinit twa_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
+static int twa_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
{
struct Scsi_Host *host = NULL;
TW_Device_Extension *tw_dev;
@@ -2015,10 +2046,10 @@ static int __devinit twa_probe(struct pci_dev *pdev, const struct pci_device_id
pci_set_master(pdev);
pci_try_set_mwi(pdev);
- if (pci_set_dma_mask(pdev, DMA_64BIT_MASK)
- || pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK))
- if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)
- || pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK)) {
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64))
+ || pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
+ || pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
TW_PRINTK(host, TW_DRIVER, 0x23, "Failed to set dma mask");
retval = -ENODEV;
goto out_disable_device;
@@ -2182,8 +2213,100 @@ static void twa_remove(struct pci_dev *pdev)
twa_device_extension_count--;
} /* End twa_remove() */
+#ifdef CONFIG_PM
+/* This function is called on PCI suspend */
+static int twa_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct Scsi_Host *host = pci_get_drvdata(pdev);
+ TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
+
+ printk(KERN_WARNING "3w-9xxx: Suspending host %d.\n", tw_dev->host->host_no);
+
+ TW_DISABLE_INTERRUPTS(tw_dev);
+ free_irq(tw_dev->tw_pci_dev->irq, tw_dev);
+
+ if (test_bit(TW_USING_MSI, &tw_dev->flags))
+ pci_disable_msi(pdev);
+
+ /* Tell the card we are shutting down */
+ if (twa_initconnection(tw_dev, 1, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL)) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x38, "Connection shutdown failed during suspend");
+ } else {
+ printk(KERN_WARNING "3w-9xxx: Suspend complete.\n");
+ }
+ TW_CLEAR_ALL_INTERRUPTS(tw_dev);
+
+ pci_save_state(pdev);
+ pci_disable_device(pdev);
+ pci_set_power_state(pdev, pci_choose_state(pdev, state));
+
+ return 0;
+} /* End twa_suspend() */
+
+/* This function is called on PCI resume */
+static int twa_resume(struct pci_dev *pdev)
+{
+ int retval = 0;
+ struct Scsi_Host *host = pci_get_drvdata(pdev);
+ TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
+
+ printk(KERN_WARNING "3w-9xxx: Resuming host %d.\n", tw_dev->host->host_no);
+ pci_set_power_state(pdev, PCI_D0);
+ pci_enable_wake(pdev, PCI_D0, 0);
+ pci_restore_state(pdev);
+
+ retval = pci_enable_device(pdev);
+ if (retval) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x39, "Enable device failed during resume");
+ return retval;
+ }
+
+ pci_set_master(pdev);
+ pci_try_set_mwi(pdev);
+
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64))
+ || pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
+ || pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
+ TW_PRINTK(host, TW_DRIVER, 0x40, "Failed to set dma mask during resume");
+ retval = -ENODEV;
+ goto out_disable_device;
+ }
+
+ /* Initialize the card */
+ if (twa_reset_sequence(tw_dev, 0)) {
+ retval = -ENODEV;
+ goto out_disable_device;
+ }
+
+ /* Now setup the interrupt handler */
+ retval = request_irq(pdev->irq, twa_interrupt, IRQF_SHARED, "3w-9xxx", tw_dev);
+ if (retval) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x42, "Error requesting IRQ during resume");
+ retval = -ENODEV;
+ goto out_disable_device;
+ }
+
+ /* Now enable MSI if enabled */
+ if (test_bit(TW_USING_MSI, &tw_dev->flags))
+ pci_enable_msi(pdev);
+
+ /* Re-enable interrupts on the card */
+ TW_ENABLE_AND_CLEAR_INTERRUPTS(tw_dev);
+
+ printk(KERN_WARNING "3w-9xxx: Resume complete.\n");
+ return 0;
+
+out_disable_device:
+ scsi_remove_host(host);
+ pci_disable_device(pdev);
+
+ return retval;
+} /* End twa_resume() */
+#endif
+
/* PCI Devices supported by this driver */
-static struct pci_device_id twa_pci_tbl[] __devinitdata = {
+static struct pci_device_id twa_pci_tbl[] = {
{ PCI_VENDOR_ID_3WARE, PCI_DEVICE_ID_3WARE_9000,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{ PCI_VENDOR_ID_3WARE, PCI_DEVICE_ID_3WARE_9550SX,
@@ -2202,6 +2325,10 @@ static struct pci_driver twa_driver = {
.id_table = twa_pci_tbl,
.probe = twa_probe,
.remove = twa_remove,
+#ifdef CONFIG_PM
+ .suspend = twa_suspend,
+ .resume = twa_resume,
+#endif
.shutdown = twa_shutdown
};
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-13 02:43:14 +0000