2390 lines
77 KiB
Diff
2390 lines
77 KiB
Diff
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From bc8548932ca011c384ca7ccd6572a305911195ff Mon Sep 17 00:00:00 2001
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From: adam radford <aradford@gmail.com>
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Date: Fri, 23 Oct 2009 14:52:33 -0700
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Subject: [PATCH] [SCSI] 3w-sas: Add new driver for LSI 3ware 9750
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commit f619106bdd9d197c947f07108af57946f19a7f7e upstream
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[jejb: fix up for new queue depth code]
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[bwh: undo the above]
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Signed-off-by: Adam Radford <aradford@gmail.com>
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Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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---
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drivers/scsi/3w-sas.c | 1924 +++++++++++++++++++++++++++++++++++++++++++++++++
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drivers/scsi/3w-sas.h | 396 ++++++++++
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drivers/scsi/Kconfig | 11 +
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drivers/scsi/Makefile | 1 +
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4 files changed, 2332 insertions(+), 0 deletions(-)
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create mode 100644 drivers/scsi/3w-sas.c
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create mode 100644 drivers/scsi/3w-sas.h
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diff --git a/drivers/scsi/3w-sas.c b/drivers/scsi/3w-sas.c
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new file mode 100644
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index 0000000..4d314d7
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--- /dev/null
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+++ b/drivers/scsi/3w-sas.c
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@@ -0,0 +1,1924 @@
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+/*
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+ 3w-sas.c -- LSI 3ware SAS/SATA-RAID Controller device driver for Linux.
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+
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+ Written By: Adam Radford <linuxraid@lsi.com>
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+
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+ Copyright (C) 2009 LSI Corporation.
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+
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+ This program is free software; you can redistribute it and/or modify
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+ it under the terms of the GNU General Public License as published by
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+ the Free Software Foundation; version 2 of the License.
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+
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+ This program is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ GNU General Public License for more details.
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+
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+ NO WARRANTY
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+ THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
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+ CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
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+ LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
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+ MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
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+ solely responsible for determining the appropriateness of using and
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+ distributing the Program and assumes all risks associated with its
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+ exercise of rights under this Agreement, including but not limited to
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+ the risks and costs of program errors, damage to or loss of data,
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+ programs or equipment, and unavailability or interruption of operations.
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+
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+ DISCLAIMER OF LIABILITY
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+ NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
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+ DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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+ DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
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+ ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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+ TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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+ USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
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+ HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
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+
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+ You should have received a copy of the GNU General Public License
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+ along with this program; if not, write to the Free Software
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+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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+
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+ Controllers supported by this driver:
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+
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+ LSI 3ware 9750 6Gb/s SAS/SATA-RAID
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+
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+ Bugs/Comments/Suggestions should be mailed to:
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+ linuxraid@lsi.com
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+
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+ For more information, goto:
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+ http://www.lsi.com
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+
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+ History
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+ -------
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+ 3.26.02.000 - Initial driver release.
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+*/
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+
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+#include <linux/module.h>
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+#include <linux/reboot.h>
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+#include <linux/spinlock.h>
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+#include <linux/interrupt.h>
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+#include <linux/moduleparam.h>
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+#include <linux/errno.h>
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+#include <linux/types.h>
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+#include <linux/delay.h>
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+#include <linux/pci.h>
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+#include <linux/time.h>
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+#include <linux/mutex.h>
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+#include <linux/smp_lock.h>
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+#include <asm/io.h>
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+#include <asm/irq.h>
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+#include <asm/uaccess.h>
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+#include <scsi/scsi.h>
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+#include <scsi/scsi_host.h>
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+#include <scsi/scsi_tcq.h>
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+#include <scsi/scsi_cmnd.h>
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+#include "3w-sas.h"
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+
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+/* Globals */
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+#define TW_DRIVER_VERSION "3.26.02.000"
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+static TW_Device_Extension *twl_device_extension_list[TW_MAX_SLOT];
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+static unsigned int twl_device_extension_count;
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+static int twl_major = -1;
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+extern struct timezone sys_tz;
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+
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+/* Module parameters */
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+MODULE_AUTHOR ("LSI");
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+MODULE_DESCRIPTION ("LSI 3ware SAS/SATA-RAID Linux Driver");
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+MODULE_LICENSE("GPL");
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+MODULE_VERSION(TW_DRIVER_VERSION);
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+
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+static int use_msi;
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+module_param(use_msi, int, S_IRUGO);
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+MODULE_PARM_DESC(use_msi, "Use Message Signaled Interrupts. Default: 0");
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+
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+/* Function prototypes */
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+static int twl_reset_device_extension(TW_Device_Extension *tw_dev, int ioctl_reset);
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+
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+/* Functions */
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+
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+/* This function returns AENs through sysfs */
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+static ssize_t twl_sysfs_aen_read(struct kobject *kobj,
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+ struct bin_attribute *bin_attr,
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+ char *outbuf, loff_t offset, size_t count)
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+{
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+ struct device *dev = container_of(kobj, struct device, kobj);
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+ struct Scsi_Host *shost = class_to_shost(dev);
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+ TW_Device_Extension *tw_dev = (TW_Device_Extension *)shost->hostdata;
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+ unsigned long flags = 0;
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+ ssize_t ret;
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+
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+ if (!capable(CAP_SYS_ADMIN))
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+ return -EACCES;
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+
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+ spin_lock_irqsave(tw_dev->host->host_lock, flags);
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+ ret = memory_read_from_buffer(outbuf, count, &offset, tw_dev->event_queue[0], sizeof(TW_Event) * TW_Q_LENGTH);
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+ spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
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+
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+ return ret;
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+} /* End twl_sysfs_aen_read() */
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+
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+/* aen_read sysfs attribute initializer */
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+static struct bin_attribute twl_sysfs_aen_read_attr = {
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+ .attr = {
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+ .name = "3ware_aen_read",
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+ .mode = S_IRUSR,
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+ },
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+ .size = 0,
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+ .read = twl_sysfs_aen_read
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+};
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+
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+/* This function returns driver compatibility info through sysfs */
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+static ssize_t twl_sysfs_compat_info(struct kobject *kobj,
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+ struct bin_attribute *bin_attr,
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+ char *outbuf, loff_t offset, size_t count)
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+{
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+ struct device *dev = container_of(kobj, struct device, kobj);
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+ struct Scsi_Host *shost = class_to_shost(dev);
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+ TW_Device_Extension *tw_dev = (TW_Device_Extension *)shost->hostdata;
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+ unsigned long flags = 0;
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+ ssize_t ret;
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+
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+ if (!capable(CAP_SYS_ADMIN))
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+ return -EACCES;
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+
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+ spin_lock_irqsave(tw_dev->host->host_lock, flags);
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+ ret = memory_read_from_buffer(outbuf, count, &offset, &tw_dev->tw_compat_info, sizeof(TW_Compatibility_Info));
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+ spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
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+
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+ return ret;
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+} /* End twl_sysfs_compat_info() */
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+
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+/* compat_info sysfs attribute initializer */
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+static struct bin_attribute twl_sysfs_compat_info_attr = {
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+ .attr = {
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+ .name = "3ware_compat_info",
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+ .mode = S_IRUSR,
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+ },
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+ .size = 0,
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+ .read = twl_sysfs_compat_info
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+};
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+
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+/* Show some statistics about the card */
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+static ssize_t twl_show_stats(struct device *dev,
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+ struct device_attribute *attr, char *buf)
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+{
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+ struct Scsi_Host *host = class_to_shost(dev);
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+ TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
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+ unsigned long flags = 0;
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+ ssize_t len;
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+
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+ spin_lock_irqsave(tw_dev->host->host_lock, flags);
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+ len = snprintf(buf, PAGE_SIZE, "3w-sas Driver version: %s\n"
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+ "Current commands posted: %4d\n"
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+ "Max commands posted: %4d\n"
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+ "Last sgl length: %4d\n"
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+ "Max sgl length: %4d\n"
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+ "Last sector count: %4d\n"
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+ "Max sector count: %4d\n"
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+ "SCSI Host Resets: %4d\n"
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+ "AEN's: %4d\n",
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+ TW_DRIVER_VERSION,
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+ tw_dev->posted_request_count,
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+ tw_dev->max_posted_request_count,
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+ tw_dev->sgl_entries,
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+ tw_dev->max_sgl_entries,
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+ tw_dev->sector_count,
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+ tw_dev->max_sector_count,
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+ tw_dev->num_resets,
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+ tw_dev->aen_count);
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+ spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
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+ return len;
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+} /* End twl_show_stats() */
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+
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+/* This function will set a devices queue depth */
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+static int twl_change_queue_depth(struct scsi_device *sdev, int queue_depth,
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+ int reason)
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+{
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+ if (reason != SCSI_QDEPTH_DEFAULT)
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+ return -EOPNOTSUPP;
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+
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+ if (queue_depth > TW_Q_LENGTH-2)
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+ queue_depth = TW_Q_LENGTH-2;
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+ scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth);
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+ return queue_depth;
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+} /* End twl_change_queue_depth() */
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+
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+/* stats sysfs attribute initializer */
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+static struct device_attribute twl_host_stats_attr = {
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+ .attr = {
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+ .name = "3ware_stats",
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+ .mode = S_IRUGO,
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+ },
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+ .show = twl_show_stats
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+};
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+
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+/* Host attributes initializer */
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+static struct device_attribute *twl_host_attrs[] = {
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+ &twl_host_stats_attr,
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+ NULL,
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+};
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+
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+/* This function will look up an AEN severity string */
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+static char *twl_aen_severity_lookup(unsigned char severity_code)
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+{
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+ char *retval = NULL;
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+
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+ if ((severity_code < (unsigned char) TW_AEN_SEVERITY_ERROR) ||
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+ (severity_code > (unsigned char) TW_AEN_SEVERITY_DEBUG))
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+ goto out;
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+
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+ retval = twl_aen_severity_table[severity_code];
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+out:
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+ return retval;
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+} /* End twl_aen_severity_lookup() */
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+
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+/* This function will queue an event */
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+static void twl_aen_queue_event(TW_Device_Extension *tw_dev, TW_Command_Apache_Header *header)
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+{
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+ u32 local_time;
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+ struct timeval time;
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+ TW_Event *event;
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+ unsigned short aen;
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+ char host[16];
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+ char *error_str;
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+
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+ tw_dev->aen_count++;
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+
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+ /* Fill out event info */
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+ event = tw_dev->event_queue[tw_dev->error_index];
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+
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+ host[0] = '\0';
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+ if (tw_dev->host)
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+ sprintf(host, " scsi%d:", tw_dev->host->host_no);
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+
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+ aen = le16_to_cpu(header->status_block.error);
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+ memset(event, 0, sizeof(TW_Event));
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+
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+ event->severity = TW_SEV_OUT(header->status_block.severity__reserved);
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+ do_gettimeofday(&time);
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+ local_time = (u32)(time.tv_sec - (sys_tz.tz_minuteswest * 60));
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+ event->time_stamp_sec = local_time;
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+ event->aen_code = aen;
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+ event->retrieved = TW_AEN_NOT_RETRIEVED;
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+ event->sequence_id = tw_dev->error_sequence_id;
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+ tw_dev->error_sequence_id++;
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+
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+ /* Check for embedded error string */
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+ error_str = &(header->err_specific_desc[strlen(header->err_specific_desc)+1]);
|
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+
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+ header->err_specific_desc[sizeof(header->err_specific_desc) - 1] = '\0';
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+ event->parameter_len = strlen(header->err_specific_desc);
|
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+ memcpy(event->parameter_data, header->err_specific_desc, event->parameter_len + 1 + strlen(error_str));
|
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+ if (event->severity != TW_AEN_SEVERITY_DEBUG)
|
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+ printk(KERN_WARNING "3w-sas:%s AEN: %s (0x%02X:0x%04X): %s:%s.\n",
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+ host,
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+ twl_aen_severity_lookup(TW_SEV_OUT(header->status_block.severity__reserved)),
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+ TW_MESSAGE_SOURCE_CONTROLLER_EVENT, aen, error_str,
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|
+ header->err_specific_desc);
|
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|
+ else
|
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|
+ tw_dev->aen_count--;
|
||
|
+
|
||
|
+ tw_dev->error_index = (tw_dev->error_index + 1 ) % TW_Q_LENGTH;
|
||
|
+} /* End twl_aen_queue_event() */
|
||
|
+
|
||
|
+/* This function will attempt to post a command packet to the board */
|
||
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+static int twl_post_command_packet(TW_Device_Extension *tw_dev, int request_id)
|
||
|
+{
|
||
|
+ dma_addr_t command_que_value;
|
||
|
+
|
||
|
+ command_que_value = tw_dev->command_packet_phys[request_id];
|
||
|
+ command_que_value += TW_COMMAND_OFFSET;
|
||
|
+
|
||
|
+ /* First write upper 4 bytes */
|
||
|
+ writel((u32)((u64)command_que_value >> 32), TWL_HIBQPH_REG_ADDR(tw_dev));
|
||
|
+ /* Then the lower 4 bytes */
|
||
|
+ writel((u32)(command_que_value | TWL_PULL_MODE), TWL_HIBQPL_REG_ADDR(tw_dev));
|
||
|
+
|
||
|
+ tw_dev->state[request_id] = TW_S_POSTED;
|
||
|
+ tw_dev->posted_request_count++;
|
||
|
+ if (tw_dev->posted_request_count > tw_dev->max_posted_request_count)
|
||
|
+ tw_dev->max_posted_request_count = tw_dev->posted_request_count;
|
||
|
+
|
||
|
+ return 0;
|
||
|
+} /* End twl_post_command_packet() */
|
||
|
+
|
||
|
+/* This function will perform a pci-dma mapping for a scatter gather list */
|
||
|
+static int twl_map_scsi_sg_data(TW_Device_Extension *tw_dev, int request_id)
|
||
|
+{
|
||
|
+ int use_sg;
|
||
|
+ struct scsi_cmnd *cmd = tw_dev->srb[request_id];
|
||
|
+
|
||
|
+ use_sg = scsi_dma_map(cmd);
|
||
|
+ if (!use_sg)
|
||
|
+ return 0;
|
||
|
+ else if (use_sg < 0) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1, "Failed to map scatter gather list");
|
||
|
+ return 0;
|
||
|
+ }
|
||
|
+
|
||
|
+ cmd->SCp.phase = TW_PHASE_SGLIST;
|
||
|
+ cmd->SCp.have_data_in = use_sg;
|
||
|
+
|
||
|
+ return use_sg;
|
||
|
+} /* End twl_map_scsi_sg_data() */
|
||
|
+
|
||
|
+/* This function hands scsi cdb's to the firmware */
|
||
|
+static int twl_scsiop_execute_scsi(TW_Device_Extension *tw_dev, int request_id, char *cdb, int use_sg, TW_SG_Entry_ISO *sglistarg)
|
||
|
+{
|
||
|
+ TW_Command_Full *full_command_packet;
|
||
|
+ TW_Command_Apache *command_packet;
|
||
|
+ int i, sg_count;
|
||
|
+ struct scsi_cmnd *srb = NULL;
|
||
|
+ struct scatterlist *sglist = NULL, *sg;
|
||
|
+ int retval = 1;
|
||
|
+
|
||
|
+ if (tw_dev->srb[request_id]) {
|
||
|
+ srb = tw_dev->srb[request_id];
|
||
|
+ if (scsi_sglist(srb))
|
||
|
+ sglist = scsi_sglist(srb);
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Initialize command packet */
|
||
|
+ full_command_packet = tw_dev->command_packet_virt[request_id];
|
||
|
+ full_command_packet->header.header_desc.size_header = 128;
|
||
|
+ full_command_packet->header.status_block.error = 0;
|
||
|
+ full_command_packet->header.status_block.severity__reserved = 0;
|
||
|
+
|
||
|
+ command_packet = &full_command_packet->command.newcommand;
|
||
|
+ command_packet->status = 0;
|
||
|
+ command_packet->opcode__reserved = TW_OPRES_IN(0, TW_OP_EXECUTE_SCSI);
|
||
|
+
|
||
|
+ /* We forced 16 byte cdb use earlier */
|
||
|
+ if (!cdb)
|
||
|
+ memcpy(command_packet->cdb, srb->cmnd, TW_MAX_CDB_LEN);
|
||
|
+ else
|
||
|
+ memcpy(command_packet->cdb, cdb, TW_MAX_CDB_LEN);
|
||
|
+
|
||
|
+ if (srb) {
|
||
|
+ command_packet->unit = srb->device->id;
|
||
|
+ command_packet->request_id__lunl =
|
||
|
+ cpu_to_le16(TW_REQ_LUN_IN(srb->device->lun, request_id));
|
||
|
+ } else {
|
||
|
+ command_packet->request_id__lunl =
|
||
|
+ cpu_to_le16(TW_REQ_LUN_IN(0, request_id));
|
||
|
+ command_packet->unit = 0;
|
||
|
+ }
|
||
|
+
|
||
|
+ command_packet->sgl_offset = 16;
|
||
|
+
|
||
|
+ if (!sglistarg) {
|
||
|
+ /* Map sglist from scsi layer to cmd packet */
|
||
|
+ if (scsi_sg_count(srb)) {
|
||
|
+ sg_count = twl_map_scsi_sg_data(tw_dev, request_id);
|
||
|
+ if (sg_count == 0)
|
||
|
+ goto out;
|
||
|
+
|
||
|
+ scsi_for_each_sg(srb, sg, sg_count, i) {
|
||
|
+ command_packet->sg_list[i].address = TW_CPU_TO_SGL(sg_dma_address(sg));
|
||
|
+ command_packet->sg_list[i].length = TW_CPU_TO_SGL(sg_dma_len(sg));
|
||
|
+ }
|
||
|
+ command_packet->sgl_entries__lunh = cpu_to_le16(TW_REQ_LUN_IN((srb->device->lun >> 4), scsi_sg_count(tw_dev->srb[request_id])));
|
||
|
+ }
|
||
|
+ } else {
|
||
|
+ /* Internal cdb post */
|
||
|
+ for (i = 0; i < use_sg; i++) {
|
||
|
+ command_packet->sg_list[i].address = TW_CPU_TO_SGL(sglistarg[i].address);
|
||
|
+ command_packet->sg_list[i].length = TW_CPU_TO_SGL(sglistarg[i].length);
|
||
|
+ }
|
||
|
+ command_packet->sgl_entries__lunh = cpu_to_le16(TW_REQ_LUN_IN(0, use_sg));
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Update some stats */
|
||
|
+ if (srb) {
|
||
|
+ tw_dev->sector_count = scsi_bufflen(srb) / 512;
|
||
|
+ if (tw_dev->sector_count > tw_dev->max_sector_count)
|
||
|
+ tw_dev->max_sector_count = tw_dev->sector_count;
|
||
|
+ tw_dev->sgl_entries = scsi_sg_count(srb);
|
||
|
+ if (tw_dev->sgl_entries > tw_dev->max_sgl_entries)
|
||
|
+ tw_dev->max_sgl_entries = tw_dev->sgl_entries;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Now post the command to the board */
|
||
|
+ retval = twl_post_command_packet(tw_dev, request_id);
|
||
|
+
|
||
|
+out:
|
||
|
+ return retval;
|
||
|
+} /* End twl_scsiop_execute_scsi() */
|
||
|
+
|
||
|
+/* This function will read the aen queue from the isr */
|
||
|
+static int twl_aen_read_queue(TW_Device_Extension *tw_dev, int request_id)
|
||
|
+{
|
||
|
+ char cdb[TW_MAX_CDB_LEN];
|
||
|
+ TW_SG_Entry_ISO sglist[1];
|
||
|
+ TW_Command_Full *full_command_packet;
|
||
|
+ int retval = 1;
|
||
|
+
|
||
|
+ full_command_packet = tw_dev->command_packet_virt[request_id];
|
||
|
+ memset(full_command_packet, 0, sizeof(TW_Command_Full));
|
||
|
+
|
||
|
+ /* Initialize cdb */
|
||
|
+ memset(&cdb, 0, TW_MAX_CDB_LEN);
|
||
|
+ cdb[0] = REQUEST_SENSE; /* opcode */
|
||
|
+ cdb[4] = TW_ALLOCATION_LENGTH; /* allocation length */
|
||
|
+
|
||
|
+ /* Initialize sglist */
|
||
|
+ memset(&sglist, 0, sizeof(TW_SG_Entry_ISO));
|
||
|
+ sglist[0].length = TW_SECTOR_SIZE;
|
||
|
+ sglist[0].address = tw_dev->generic_buffer_phys[request_id];
|
||
|
+
|
||
|
+ /* Mark internal command */
|
||
|
+ tw_dev->srb[request_id] = NULL;
|
||
|
+
|
||
|
+ /* Now post the command packet */
|
||
|
+ if (twl_scsiop_execute_scsi(tw_dev, request_id, cdb, 1, sglist)) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x2, "Post failed while reading AEN queue");
|
||
|
+ goto out;
|
||
|
+ }
|
||
|
+ retval = 0;
|
||
|
+out:
|
||
|
+ return retval;
|
||
|
+} /* End twl_aen_read_queue() */
|
||
|
+
|
||
|
+/* This function will sync firmware time with the host time */
|
||
|
+static void twl_aen_sync_time(TW_Device_Extension *tw_dev, int request_id)
|
||
|
+{
|
||
|
+ u32 schedulertime;
|
||
|
+ struct timeval utc;
|
||
|
+ TW_Command_Full *full_command_packet;
|
||
|
+ TW_Command *command_packet;
|
||
|
+ TW_Param_Apache *param;
|
||
|
+ u32 local_time;
|
||
|
+
|
||
|
+ /* Fill out the command packet */
|
||
|
+ full_command_packet = tw_dev->command_packet_virt[request_id];
|
||
|
+ memset(full_command_packet, 0, sizeof(TW_Command_Full));
|
||
|
+ command_packet = &full_command_packet->command.oldcommand;
|
||
|
+ command_packet->opcode__sgloffset = TW_OPSGL_IN(2, TW_OP_SET_PARAM);
|
||
|
+ command_packet->request_id = request_id;
|
||
|
+ command_packet->byte8_offset.param.sgl[0].address = TW_CPU_TO_SGL(tw_dev->generic_buffer_phys[request_id]);
|
||
|
+ command_packet->byte8_offset.param.sgl[0].length = TW_CPU_TO_SGL(TW_SECTOR_SIZE);
|
||
|
+ command_packet->size = TW_COMMAND_SIZE;
|
||
|
+ command_packet->byte6_offset.parameter_count = cpu_to_le16(1);
|
||
|
+
|
||
|
+ /* Setup the param */
|
||
|
+ param = (TW_Param_Apache *)tw_dev->generic_buffer_virt[request_id];
|
||
|
+ memset(param, 0, TW_SECTOR_SIZE);
|
||
|
+ param->table_id = cpu_to_le16(TW_TIMEKEEP_TABLE | 0x8000); /* Controller time keep table */
|
||
|
+ param->parameter_id = cpu_to_le16(0x3); /* SchedulerTime */
|
||
|
+ param->parameter_size_bytes = cpu_to_le16(4);
|
||
|
+
|
||
|
+ /* Convert system time in UTC to local time seconds since last
|
||
|
+ Sunday 12:00AM */
|
||
|
+ do_gettimeofday(&utc);
|
||
|
+ local_time = (u32)(utc.tv_sec - (sys_tz.tz_minuteswest * 60));
|
||
|
+ schedulertime = local_time - (3 * 86400);
|
||
|
+ schedulertime = cpu_to_le32(schedulertime % 604800);
|
||
|
+
|
||
|
+ memcpy(param->data, &schedulertime, sizeof(u32));
|
||
|
+
|
||
|
+ /* Mark internal command */
|
||
|
+ tw_dev->srb[request_id] = NULL;
|
||
|
+
|
||
|
+ /* Now post the command */
|
||
|
+ twl_post_command_packet(tw_dev, request_id);
|
||
|
+} /* End twl_aen_sync_time() */
|
||
|
+
|
||
|
+/* This function will assign an available request id */
|
||
|
+static void twl_get_request_id(TW_Device_Extension *tw_dev, int *request_id)
|
||
|
+{
|
||
|
+ *request_id = tw_dev->free_queue[tw_dev->free_head];
|
||
|
+ tw_dev->free_head = (tw_dev->free_head + 1) % TW_Q_LENGTH;
|
||
|
+ tw_dev->state[*request_id] = TW_S_STARTED;
|
||
|
+} /* End twl_get_request_id() */
|
||
|
+
|
||
|
+/* This function will free a request id */
|
||
|
+static void twl_free_request_id(TW_Device_Extension *tw_dev, int request_id)
|
||
|
+{
|
||
|
+ tw_dev->free_queue[tw_dev->free_tail] = request_id;
|
||
|
+ tw_dev->state[request_id] = TW_S_FINISHED;
|
||
|
+ tw_dev->free_tail = (tw_dev->free_tail + 1) % TW_Q_LENGTH;
|
||
|
+} /* End twl_free_request_id() */
|
||
|
+
|
||
|
+/* This function will complete an aen request from the isr */
|
||
|
+static int twl_aen_complete(TW_Device_Extension *tw_dev, int request_id)
|
||
|
+{
|
||
|
+ TW_Command_Full *full_command_packet;
|
||
|
+ TW_Command *command_packet;
|
||
|
+ TW_Command_Apache_Header *header;
|
||
|
+ unsigned short aen;
|
||
|
+ int retval = 1;
|
||
|
+
|
||
|
+ header = (TW_Command_Apache_Header *)tw_dev->generic_buffer_virt[request_id];
|
||
|
+ tw_dev->posted_request_count--;
|
||
|
+ aen = le16_to_cpu(header->status_block.error);
|
||
|
+ full_command_packet = tw_dev->command_packet_virt[request_id];
|
||
|
+ command_packet = &full_command_packet->command.oldcommand;
|
||
|
+
|
||
|
+ /* First check for internal completion of set param for time sync */
|
||
|
+ if (TW_OP_OUT(command_packet->opcode__sgloffset) == TW_OP_SET_PARAM) {
|
||
|
+ /* Keep reading the queue in case there are more aen's */
|
||
|
+ if (twl_aen_read_queue(tw_dev, request_id))
|
||
|
+ goto out2;
|
||
|
+ else {
|
||
|
+ retval = 0;
|
||
|
+ goto out;
|
||
|
+ }
|
||
|
+ }
|
||
|
+
|
||
|
+ switch (aen) {
|
||
|
+ case TW_AEN_QUEUE_EMPTY:
|
||
|
+ /* Quit reading the queue if this is the last one */
|
||
|
+ break;
|
||
|
+ case TW_AEN_SYNC_TIME_WITH_HOST:
|
||
|
+ twl_aen_sync_time(tw_dev, request_id);
|
||
|
+ retval = 0;
|
||
|
+ goto out;
|
||
|
+ default:
|
||
|
+ twl_aen_queue_event(tw_dev, header);
|
||
|
+
|
||
|
+ /* If there are more aen's, keep reading the queue */
|
||
|
+ if (twl_aen_read_queue(tw_dev, request_id))
|
||
|
+ goto out2;
|
||
|
+ else {
|
||
|
+ retval = 0;
|
||
|
+ goto out;
|
||
|
+ }
|
||
|
+ }
|
||
|
+ retval = 0;
|
||
|
+out2:
|
||
|
+ tw_dev->state[request_id] = TW_S_COMPLETED;
|
||
|
+ twl_free_request_id(tw_dev, request_id);
|
||
|
+ clear_bit(TW_IN_ATTENTION_LOOP, &tw_dev->flags);
|
||
|
+out:
|
||
|
+ return retval;
|
||
|
+} /* End twl_aen_complete() */
|
||
|
+
|
||
|
+/* This function will poll for a response */
|
||
|
+static int twl_poll_response(TW_Device_Extension *tw_dev, int request_id, int seconds)
|
||
|
+{
|
||
|
+ unsigned long before;
|
||
|
+ dma_addr_t mfa;
|
||
|
+ u32 regh, regl;
|
||
|
+ u32 response;
|
||
|
+ int retval = 1;
|
||
|
+ int found = 0;
|
||
|
+
|
||
|
+ before = jiffies;
|
||
|
+
|
||
|
+ while (!found) {
|
||
|
+ if (sizeof(dma_addr_t) > 4) {
|
||
|
+ regh = readl(TWL_HOBQPH_REG_ADDR(tw_dev));
|
||
|
+ regl = readl(TWL_HOBQPL_REG_ADDR(tw_dev));
|
||
|
+ mfa = ((u64)regh << 32) | regl;
|
||
|
+ } else
|
||
|
+ mfa = readl(TWL_HOBQPL_REG_ADDR(tw_dev));
|
||
|
+
|
||
|
+ response = (u32)mfa;
|
||
|
+
|
||
|
+ if (TW_RESID_OUT(response) == request_id)
|
||
|
+ found = 1;
|
||
|
+
|
||
|
+ if (time_after(jiffies, before + HZ * seconds))
|
||
|
+ goto out;
|
||
|
+
|
||
|
+ msleep(50);
|
||
|
+ }
|
||
|
+ retval = 0;
|
||
|
+out:
|
||
|
+ return retval;
|
||
|
+} /* End twl_poll_response() */
|
||
|
+
|
||
|
+/* This function will drain the aen queue */
|
||
|
+static int twl_aen_drain_queue(TW_Device_Extension *tw_dev, int no_check_reset)
|
||
|
+{
|
||
|
+ int request_id = 0;
|
||
|
+ char cdb[TW_MAX_CDB_LEN];
|
||
|
+ TW_SG_Entry_ISO sglist[1];
|
||
|
+ int finished = 0, count = 0;
|
||
|
+ TW_Command_Full *full_command_packet;
|
||
|
+ TW_Command_Apache_Header *header;
|
||
|
+ unsigned short aen;
|
||
|
+ int first_reset = 0, queue = 0, retval = 1;
|
||
|
+
|
||
|
+ if (no_check_reset)
|
||
|
+ first_reset = 0;
|
||
|
+ else
|
||
|
+ first_reset = 1;
|
||
|
+
|
||
|
+ full_command_packet = tw_dev->command_packet_virt[request_id];
|
||
|
+ memset(full_command_packet, 0, sizeof(TW_Command_Full));
|
||
|
+
|
||
|
+ /* Initialize cdb */
|
||
|
+ memset(&cdb, 0, TW_MAX_CDB_LEN);
|
||
|
+ cdb[0] = REQUEST_SENSE; /* opcode */
|
||
|
+ cdb[4] = TW_ALLOCATION_LENGTH; /* allocation length */
|
||
|
+
|
||
|
+ /* Initialize sglist */
|
||
|
+ memset(&sglist, 0, sizeof(TW_SG_Entry_ISO));
|
||
|
+ sglist[0].length = TW_SECTOR_SIZE;
|
||
|
+ sglist[0].address = tw_dev->generic_buffer_phys[request_id];
|
||
|
+
|
||
|
+ /* Mark internal command */
|
||
|
+ tw_dev->srb[request_id] = NULL;
|
||
|
+
|
||
|
+ do {
|
||
|
+ /* Send command to the board */
|
||
|
+ if (twl_scsiop_execute_scsi(tw_dev, request_id, cdb, 1, sglist)) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x3, "Error posting request sense");
|
||
|
+ goto out;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Now poll for completion */
|
||
|
+ if (twl_poll_response(tw_dev, request_id, 30)) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x4, "No valid response while draining AEN queue");
|
||
|
+ tw_dev->posted_request_count--;
|
||
|
+ goto out;
|
||
|
+ }
|
||
|
+
|
||
|
+ tw_dev->posted_request_count--;
|
||
|
+ header = (TW_Command_Apache_Header *)tw_dev->generic_buffer_virt[request_id];
|
||
|
+ aen = le16_to_cpu(header->status_block.error);
|
||
|
+ queue = 0;
|
||
|
+ count++;
|
||
|
+
|
||
|
+ switch (aen) {
|
||
|
+ case TW_AEN_QUEUE_EMPTY:
|
||
|
+ if (first_reset != 1)
|
||
|
+ goto out;
|
||
|
+ else
|
||
|
+ finished = 1;
|
||
|
+ break;
|
||
|
+ case TW_AEN_SOFT_RESET:
|
||
|
+ if (first_reset == 0)
|
||
|
+ first_reset = 1;
|
||
|
+ else
|
||
|
+ queue = 1;
|
||
|
+ break;
|
||
|
+ case TW_AEN_SYNC_TIME_WITH_HOST:
|
||
|
+ break;
|
||
|
+ default:
|
||
|
+ queue = 1;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Now queue an event info */
|
||
|
+ if (queue)
|
||
|
+ twl_aen_queue_event(tw_dev, header);
|
||
|
+ } while ((finished == 0) && (count < TW_MAX_AEN_DRAIN));
|
||
|
+
|
||
|
+ if (count == TW_MAX_AEN_DRAIN)
|
||
|
+ goto out;
|
||
|
+
|
||
|
+ retval = 0;
|
||
|
+out:
|
||
|
+ tw_dev->state[request_id] = TW_S_INITIAL;
|
||
|
+ return retval;
|
||
|
+} /* End twl_aen_drain_queue() */
|
||
|
+
|
||
|
+/* This function will allocate memory and check if it is correctly aligned */
|
||
|
+static int twl_allocate_memory(TW_Device_Extension *tw_dev, int size, int which)
|
||
|
+{
|
||
|
+ int i;
|
||
|
+ dma_addr_t dma_handle;
|
||
|
+ unsigned long *cpu_addr;
|
||
|
+ int retval = 1;
|
||
|
+
|
||
|
+ cpu_addr = pci_alloc_consistent(tw_dev->tw_pci_dev, size*TW_Q_LENGTH, &dma_handle);
|
||
|
+ if (!cpu_addr) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x5, "Memory allocation failed");
|
||
|
+ goto out;
|
||
|
+ }
|
||
|
+
|
||
|
+ memset(cpu_addr, 0, size*TW_Q_LENGTH);
|
||
|
+
|
||
|
+ for (i = 0; i < TW_Q_LENGTH; i++) {
|
||
|
+ switch(which) {
|
||
|
+ case 0:
|
||
|
+ tw_dev->command_packet_phys[i] = dma_handle+(i*size);
|
||
|
+ tw_dev->command_packet_virt[i] = (TW_Command_Full *)((unsigned char *)cpu_addr + (i*size));
|
||
|
+ break;
|
||
|
+ case 1:
|
||
|
+ tw_dev->generic_buffer_phys[i] = dma_handle+(i*size);
|
||
|
+ tw_dev->generic_buffer_virt[i] = (unsigned long *)((unsigned char *)cpu_addr + (i*size));
|
||
|
+ break;
|
||
|
+ case 2:
|
||
|
+ tw_dev->sense_buffer_phys[i] = dma_handle+(i*size);
|
||
|
+ tw_dev->sense_buffer_virt[i] = (TW_Command_Apache_Header *)((unsigned char *)cpu_addr + (i*size));
|
||
|
+ break;
|
||
|
+ }
|
||
|
+ }
|
||
|
+ retval = 0;
|
||
|
+out:
|
||
|
+ return retval;
|
||
|
+} /* End twl_allocate_memory() */
|
||
|
+
|
||
|
+/* This function will load the request id and various sgls for ioctls */
|
||
|
+static void twl_load_sgl(TW_Device_Extension *tw_dev, TW_Command_Full *full_command_packet, int request_id, dma_addr_t dma_handle, int length)
|
||
|
+{
|
||
|
+ TW_Command *oldcommand;
|
||
|
+ TW_Command_Apache *newcommand;
|
||
|
+ TW_SG_Entry_ISO *sgl;
|
||
|
+ unsigned int pae = 0;
|
||
|
+
|
||
|
+ if ((sizeof(long) < 8) && (sizeof(dma_addr_t) > 4))
|
||
|
+ pae = 1;
|
||
|
+
|
||
|
+ if (TW_OP_OUT(full_command_packet->command.newcommand.opcode__reserved) == TW_OP_EXECUTE_SCSI) {
|
||
|
+ 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));
|
||
|
+ if (length) {
|
||
|
+ newcommand->sg_list[0].address = TW_CPU_TO_SGL(dma_handle + sizeof(TW_Ioctl_Buf_Apache) - 1);
|
||
|
+ newcommand->sg_list[0].length = TW_CPU_TO_SGL(length);
|
||
|
+ }
|
||
|
+ newcommand->sgl_entries__lunh =
|
||
|
+ 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;
|
||
|
+
|
||
|
+ if (TW_SGL_OUT(oldcommand->opcode__sgloffset)) {
|
||
|
+ /* Load the sg list */
|
||
|
+ sgl = (TW_SG_Entry_ISO *)((u32 *)oldcommand+oldcommand->size - (sizeof(TW_SG_Entry_ISO)/4) + pae + (sizeof(dma_addr_t) > 4 ? 1 : 0));
|
||
|
+ sgl->address = TW_CPU_TO_SGL(dma_handle + sizeof(TW_Ioctl_Buf_Apache) - 1);
|
||
|
+ sgl->length = TW_CPU_TO_SGL(length);
|
||
|
+ oldcommand->size += pae;
|
||
|
+ oldcommand->size += sizeof(dma_addr_t) > 4 ? 1 : 0;
|
||
|
+ }
|
||
|
+ }
|
||
|
+} /* End twl_load_sgl() */
|
||
|
+
|
||
|
+/* This function handles ioctl for the character device
|
||
|
+ This interface is used by smartmontools open source software */
|
||
|
+static int twl_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
|
||
|
+{
|
||
|
+ long timeout;
|
||
|
+ unsigned long *cpu_addr, data_buffer_length_adjusted = 0, flags = 0;
|
||
|
+ dma_addr_t dma_handle;
|
||
|
+ int request_id = 0;
|
||
|
+ TW_Ioctl_Driver_Command driver_command;
|
||
|
+ TW_Ioctl_Buf_Apache *tw_ioctl;
|
||
|
+ TW_Command_Full *full_command_packet;
|
||
|
+ TW_Device_Extension *tw_dev = twl_device_extension_list[iminor(inode)];
|
||
|
+ int retval = -EFAULT;
|
||
|
+ void __user *argp = (void __user *)arg;
|
||
|
+
|
||
|
+ /* Only let one of these through at a time */
|
||
|
+ if (mutex_lock_interruptible(&tw_dev->ioctl_lock)) {
|
||
|
+ retval = -EINTR;
|
||
|
+ goto out;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* First copy down the driver command */
|
||
|
+ if (copy_from_user(&driver_command, argp, sizeof(TW_Ioctl_Driver_Command)))
|
||
|
+ goto out2;
|
||
|
+
|
||
|
+ /* Check data buffer size */
|
||
|
+ if (driver_command.buffer_length > TW_MAX_SECTORS * 2048) {
|
||
|
+ retval = -EINVAL;
|
||
|
+ goto out2;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Hardware can only do multiple of 512 byte transfers */
|
||
|
+ data_buffer_length_adjusted = (driver_command.buffer_length + 511) & ~511;
|
||
|
+
|
||
|
+ /* Now allocate ioctl buf memory */
|
||
|
+ cpu_addr = dma_alloc_coherent(&tw_dev->tw_pci_dev->dev, data_buffer_length_adjusted+sizeof(TW_Ioctl_Buf_Apache) - 1, &dma_handle, GFP_KERNEL);
|
||
|
+ if (!cpu_addr) {
|
||
|
+ retval = -ENOMEM;
|
||
|
+ goto out2;
|
||
|
+ }
|
||
|
+
|
||
|
+ tw_ioctl = (TW_Ioctl_Buf_Apache *)cpu_addr;
|
||
|
+
|
||
|
+ /* Now copy down the entire ioctl */
|
||
|
+ if (copy_from_user(tw_ioctl, argp, driver_command.buffer_length + sizeof(TW_Ioctl_Buf_Apache) - 1))
|
||
|
+ goto out3;
|
||
|
+
|
||
|
+ /* See which ioctl we are doing */
|
||
|
+ switch (cmd) {
|
||
|
+ case TW_IOCTL_FIRMWARE_PASS_THROUGH:
|
||
|
+ spin_lock_irqsave(tw_dev->host->host_lock, flags);
|
||
|
+ twl_get_request_id(tw_dev, &request_id);
|
||
|
+
|
||
|
+ /* Flag internal command */
|
||
|
+ tw_dev->srb[request_id] = NULL;
|
||
|
+
|
||
|
+ /* Flag chrdev ioctl */
|
||
|
+ tw_dev->chrdev_request_id = request_id;
|
||
|
+
|
||
|
+ full_command_packet = (TW_Command_Full *)&tw_ioctl->firmware_command;
|
||
|
+
|
||
|
+ /* Load request id and sglist for both command types */
|
||
|
+ twl_load_sgl(tw_dev, full_command_packet, request_id, dma_handle, data_buffer_length_adjusted);
|
||
|
+
|
||
|
+ memcpy(tw_dev->command_packet_virt[request_id], &(tw_ioctl->firmware_command), sizeof(TW_Command_Full));
|
||
|
+
|
||
|
+ /* Now post the command packet to the controller */
|
||
|
+ twl_post_command_packet(tw_dev, request_id);
|
||
|
+ spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
|
||
|
+
|
||
|
+ timeout = TW_IOCTL_CHRDEV_TIMEOUT*HZ;
|
||
|
+
|
||
|
+ /* Now wait for command to complete */
|
||
|
+ timeout = wait_event_timeout(tw_dev->ioctl_wqueue, tw_dev->chrdev_request_id == TW_IOCTL_CHRDEV_FREE, timeout);
|
||
|
+
|
||
|
+ /* We timed out, and didn't get an interrupt */
|
||
|
+ if (tw_dev->chrdev_request_id != TW_IOCTL_CHRDEV_FREE) {
|
||
|
+ /* Now we need to reset the board */
|
||
|
+ printk(KERN_WARNING "3w-sas: scsi%d: WARNING: (0x%02X:0x%04X): Character ioctl (0x%x) timed out, resetting card.\n",
|
||
|
+ tw_dev->host->host_no, TW_DRIVER, 0x6,
|
||
|
+ cmd);
|
||
|
+ retval = -EIO;
|
||
|
+ twl_reset_device_extension(tw_dev, 1);
|
||
|
+ goto out3;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Now copy in the command packet response */
|
||
|
+ memcpy(&(tw_ioctl->firmware_command), tw_dev->command_packet_virt[request_id], sizeof(TW_Command_Full));
|
||
|
+
|
||
|
+ /* Now complete the io */
|
||
|
+ spin_lock_irqsave(tw_dev->host->host_lock, flags);
|
||
|
+ tw_dev->posted_request_count--;
|
||
|
+ tw_dev->state[request_id] = TW_S_COMPLETED;
|
||
|
+ twl_free_request_id(tw_dev, request_id);
|
||
|
+ spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
|
||
|
+ break;
|
||
|
+ default:
|
||
|
+ retval = -ENOTTY;
|
||
|
+ goto out3;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Now copy the entire response to userspace */
|
||
|
+ if (copy_to_user(argp, tw_ioctl, sizeof(TW_Ioctl_Buf_Apache) + driver_command.buffer_length - 1) == 0)
|
||
|
+ retval = 0;
|
||
|
+out3:
|
||
|
+ /* Now free ioctl buf memory */
|
||
|
+ dma_free_coherent(&tw_dev->tw_pci_dev->dev, data_buffer_length_adjusted+sizeof(TW_Ioctl_Buf_Apache) - 1, cpu_addr, dma_handle);
|
||
|
+out2:
|
||
|
+ mutex_unlock(&tw_dev->ioctl_lock);
|
||
|
+out:
|
||
|
+ return retval;
|
||
|
+} /* End twl_chrdev_ioctl() */
|
||
|
+
|
||
|
+/* This function handles open for the character device */
|
||
|
+static int twl_chrdev_open(struct inode *inode, struct file *file)
|
||
|
+{
|
||
|
+ unsigned int minor_number;
|
||
|
+ int retval = -ENODEV;
|
||
|
+
|
||
|
+ if (!capable(CAP_SYS_ADMIN)) {
|
||
|
+ retval = -EACCES;
|
||
|
+ goto out;
|
||
|
+ }
|
||
|
+
|
||
|
+ cycle_kernel_lock();
|
||
|
+ minor_number = iminor(inode);
|
||
|
+ if (minor_number >= twl_device_extension_count)
|
||
|
+ goto out;
|
||
|
+ retval = 0;
|
||
|
+out:
|
||
|
+ return retval;
|
||
|
+} /* End twl_chrdev_open() */
|
||
|
+
|
||
|
+/* File operations struct for character device */
|
||
|
+static const struct file_operations twl_fops = {
|
||
|
+ .owner = THIS_MODULE,
|
||
|
+ .ioctl = twl_chrdev_ioctl,
|
||
|
+ .open = twl_chrdev_open,
|
||
|
+ .release = NULL
|
||
|
+};
|
||
|
+
|
||
|
+/* This function passes sense data from firmware to scsi layer */
|
||
|
+static int twl_fill_sense(TW_Device_Extension *tw_dev, int i, int request_id, int copy_sense, int print_host)
|
||
|
+{
|
||
|
+ TW_Command_Apache_Header *header;
|
||
|
+ TW_Command_Full *full_command_packet;
|
||
|
+ unsigned short error;
|
||
|
+ char *error_str;
|
||
|
+ int retval = 1;
|
||
|
+
|
||
|
+ header = tw_dev->sense_buffer_virt[i];
|
||
|
+ full_command_packet = tw_dev->command_packet_virt[request_id];
|
||
|
+
|
||
|
+ /* Get embedded firmware error string */
|
||
|
+ error_str = &(header->err_specific_desc[strlen(header->err_specific_desc) + 1]);
|
||
|
+
|
||
|
+ /* Don't print error for Logical unit not supported during rollcall */
|
||
|
+ error = le16_to_cpu(header->status_block.error);
|
||
|
+ if ((error != TW_ERROR_LOGICAL_UNIT_NOT_SUPPORTED) && (error != TW_ERROR_UNIT_OFFLINE) && (error != TW_ERROR_INVALID_FIELD_IN_CDB)) {
|
||
|
+ if (print_host)
|
||
|
+ printk(KERN_WARNING "3w-sas: scsi%d: ERROR: (0x%02X:0x%04X): %s:%s.\n",
|
||
|
+ tw_dev->host->host_no,
|
||
|
+ TW_MESSAGE_SOURCE_CONTROLLER_ERROR,
|
||
|
+ header->status_block.error,
|
||
|
+ error_str,
|
||
|
+ header->err_specific_desc);
|
||
|
+ else
|
||
|
+ printk(KERN_WARNING "3w-sas: ERROR: (0x%02X:0x%04X): %s:%s.\n",
|
||
|
+ TW_MESSAGE_SOURCE_CONTROLLER_ERROR,
|
||
|
+ header->status_block.error,
|
||
|
+ error_str,
|
||
|
+ header->err_specific_desc);
|
||
|
+ }
|
||
|
+
|
||
|
+ if (copy_sense) {
|
||
|
+ memcpy(tw_dev->srb[request_id]->sense_buffer, header->sense_data, TW_SENSE_DATA_LENGTH);
|
||
|
+ tw_dev->srb[request_id]->result = (full_command_packet->command.newcommand.status << 1);
|
||
|
+ goto out;
|
||
|
+ }
|
||
|
+out:
|
||
|
+ return retval;
|
||
|
+} /* End twl_fill_sense() */
|
||
|
+
|
||
|
+/* This function will free up device extension resources */
|
||
|
+static void twl_free_device_extension(TW_Device_Extension *tw_dev)
|
||
|
+{
|
||
|
+ if (tw_dev->command_packet_virt[0])
|
||
|
+ pci_free_consistent(tw_dev->tw_pci_dev,
|
||
|
+ sizeof(TW_Command_Full)*TW_Q_LENGTH,
|
||
|
+ tw_dev->command_packet_virt[0],
|
||
|
+ tw_dev->command_packet_phys[0]);
|
||
|
+
|
||
|
+ if (tw_dev->generic_buffer_virt[0])
|
||
|
+ pci_free_consistent(tw_dev->tw_pci_dev,
|
||
|
+ TW_SECTOR_SIZE*TW_Q_LENGTH,
|
||
|
+ tw_dev->generic_buffer_virt[0],
|
||
|
+ tw_dev->generic_buffer_phys[0]);
|
||
|
+
|
||
|
+ if (tw_dev->sense_buffer_virt[0])
|
||
|
+ pci_free_consistent(tw_dev->tw_pci_dev,
|
||
|
+ sizeof(TW_Command_Apache_Header)*
|
||
|
+ TW_Q_LENGTH,
|
||
|
+ tw_dev->sense_buffer_virt[0],
|
||
|
+ tw_dev->sense_buffer_phys[0]);
|
||
|
+
|
||
|
+ kfree(tw_dev->event_queue[0]);
|
||
|
+} /* End twl_free_device_extension() */
|
||
|
+
|
||
|
+/* This function will get parameter table entries from the firmware */
|
||
|
+static void *twl_get_param(TW_Device_Extension *tw_dev, int request_id, int table_id, int parameter_id, int parameter_size_bytes)
|
||
|
+{
|
||
|
+ TW_Command_Full *full_command_packet;
|
||
|
+ TW_Command *command_packet;
|
||
|
+ TW_Param_Apache *param;
|
||
|
+ void *retval = NULL;
|
||
|
+
|
||
|
+ /* Setup the command packet */
|
||
|
+ full_command_packet = tw_dev->command_packet_virt[request_id];
|
||
|
+ memset(full_command_packet, 0, sizeof(TW_Command_Full));
|
||
|
+ command_packet = &full_command_packet->command.oldcommand;
|
||
|
+
|
||
|
+ command_packet->opcode__sgloffset = TW_OPSGL_IN(2, TW_OP_GET_PARAM);
|
||
|
+ command_packet->size = TW_COMMAND_SIZE;
|
||
|
+ command_packet->request_id = request_id;
|
||
|
+ command_packet->byte6_offset.block_count = cpu_to_le16(1);
|
||
|
+
|
||
|
+ /* Now setup the param */
|
||
|
+ param = (TW_Param_Apache *)tw_dev->generic_buffer_virt[request_id];
|
||
|
+ memset(param, 0, TW_SECTOR_SIZE);
|
||
|
+ param->table_id = cpu_to_le16(table_id | 0x8000);
|
||
|
+ param->parameter_id = cpu_to_le16(parameter_id);
|
||
|
+ param->parameter_size_bytes = cpu_to_le16(parameter_size_bytes);
|
||
|
+
|
||
|
+ command_packet->byte8_offset.param.sgl[0].address = TW_CPU_TO_SGL(tw_dev->generic_buffer_phys[request_id]);
|
||
|
+ command_packet->byte8_offset.param.sgl[0].length = TW_CPU_TO_SGL(TW_SECTOR_SIZE);
|
||
|
+
|
||
|
+ /* Post the command packet to the board */
|
||
|
+ twl_post_command_packet(tw_dev, request_id);
|
||
|
+
|
||
|
+ /* Poll for completion */
|
||
|
+ if (twl_poll_response(tw_dev, request_id, 30))
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x7, "No valid response during get param")
|
||
|
+ else
|
||
|
+ retval = (void *)&(param->data[0]);
|
||
|
+
|
||
|
+ tw_dev->posted_request_count--;
|
||
|
+ tw_dev->state[request_id] = TW_S_INITIAL;
|
||
|
+
|
||
|
+ return retval;
|
||
|
+} /* End twl_get_param() */
|
||
|
+
|
||
|
+/* This function will send an initconnection command to controller */
|
||
|
+static int twl_initconnection(TW_Device_Extension *tw_dev, int message_credits,
|
||
|
+ u32 set_features, unsigned short current_fw_srl,
|
||
|
+ unsigned short current_fw_arch_id,
|
||
|
+ unsigned short current_fw_branch,
|
||
|
+ unsigned short current_fw_build,
|
||
|
+ unsigned short *fw_on_ctlr_srl,
|
||
|
+ unsigned short *fw_on_ctlr_arch_id,
|
||
|
+ unsigned short *fw_on_ctlr_branch,
|
||
|
+ unsigned short *fw_on_ctlr_build,
|
||
|
+ u32 *init_connect_result)
|
||
|
+{
|
||
|
+ TW_Command_Full *full_command_packet;
|
||
|
+ TW_Initconnect *tw_initconnect;
|
||
|
+ int request_id = 0, retval = 1;
|
||
|
+
|
||
|
+ /* Initialize InitConnection command packet */
|
||
|
+ full_command_packet = tw_dev->command_packet_virt[request_id];
|
||
|
+ memset(full_command_packet, 0, sizeof(TW_Command_Full));
|
||
|
+ full_command_packet->header.header_desc.size_header = 128;
|
||
|
+
|
||
|
+ tw_initconnect = (TW_Initconnect *)&full_command_packet->command.oldcommand;
|
||
|
+ tw_initconnect->opcode__reserved = TW_OPRES_IN(0, TW_OP_INIT_CONNECTION);
|
||
|
+ tw_initconnect->request_id = request_id;
|
||
|
+ tw_initconnect->message_credits = cpu_to_le16(message_credits);
|
||
|
+ tw_initconnect->features = set_features;
|
||
|
+
|
||
|
+ /* Turn on 64-bit sgl support if we need to */
|
||
|
+ tw_initconnect->features |= sizeof(dma_addr_t) > 4 ? 1 : 0;
|
||
|
+
|
||
|
+ tw_initconnect->features = cpu_to_le32(tw_initconnect->features);
|
||
|
+
|
||
|
+ if (set_features & TW_EXTENDED_INIT_CONNECT) {
|
||
|
+ tw_initconnect->size = TW_INIT_COMMAND_PACKET_SIZE_EXTENDED;
|
||
|
+ tw_initconnect->fw_srl = cpu_to_le16(current_fw_srl);
|
||
|
+ tw_initconnect->fw_arch_id = cpu_to_le16(current_fw_arch_id);
|
||
|
+ tw_initconnect->fw_branch = cpu_to_le16(current_fw_branch);
|
||
|
+ tw_initconnect->fw_build = cpu_to_le16(current_fw_build);
|
||
|
+ } else
|
||
|
+ tw_initconnect->size = TW_INIT_COMMAND_PACKET_SIZE;
|
||
|
+
|
||
|
+ /* Send command packet to the board */
|
||
|
+ twl_post_command_packet(tw_dev, request_id);
|
||
|
+
|
||
|
+ /* Poll for completion */
|
||
|
+ if (twl_poll_response(tw_dev, request_id, 30)) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x8, "No valid response during init connection");
|
||
|
+ } else {
|
||
|
+ if (set_features & TW_EXTENDED_INIT_CONNECT) {
|
||
|
+ *fw_on_ctlr_srl = le16_to_cpu(tw_initconnect->fw_srl);
|
||
|
+ *fw_on_ctlr_arch_id = le16_to_cpu(tw_initconnect->fw_arch_id);
|
||
|
+ *fw_on_ctlr_branch = le16_to_cpu(tw_initconnect->fw_branch);
|
||
|
+ *fw_on_ctlr_build = le16_to_cpu(tw_initconnect->fw_build);
|
||
|
+ *init_connect_result = le32_to_cpu(tw_initconnect->result);
|
||
|
+ }
|
||
|
+ retval = 0;
|
||
|
+ }
|
||
|
+
|
||
|
+ tw_dev->posted_request_count--;
|
||
|
+ tw_dev->state[request_id] = TW_S_INITIAL;
|
||
|
+
|
||
|
+ return retval;
|
||
|
+} /* End twl_initconnection() */
|
||
|
+
|
||
|
+/* This function will initialize the fields of a device extension */
|
||
|
+static int twl_initialize_device_extension(TW_Device_Extension *tw_dev)
|
||
|
+{
|
||
|
+ int i, retval = 1;
|
||
|
+
|
||
|
+ /* Initialize command packet buffers */
|
||
|
+ if (twl_allocate_memory(tw_dev, sizeof(TW_Command_Full), 0)) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x9, "Command packet memory allocation failed");
|
||
|
+ goto out;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Initialize generic buffer */
|
||
|
+ if (twl_allocate_memory(tw_dev, TW_SECTOR_SIZE, 1)) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0xa, "Generic memory allocation failed");
|
||
|
+ goto out;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Allocate sense buffers */
|
||
|
+ if (twl_allocate_memory(tw_dev, sizeof(TW_Command_Apache_Header), 2)) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0xb, "Sense buffer allocation failed");
|
||
|
+ goto out;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Allocate event info space */
|
||
|
+ tw_dev->event_queue[0] = kcalloc(TW_Q_LENGTH, sizeof(TW_Event), GFP_KERNEL);
|
||
|
+ if (!tw_dev->event_queue[0]) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0xc, "Event info memory allocation failed");
|
||
|
+ goto out;
|
||
|
+ }
|
||
|
+
|
||
|
+ for (i = 0; i < TW_Q_LENGTH; i++) {
|
||
|
+ tw_dev->event_queue[i] = (TW_Event *)((unsigned char *)tw_dev->event_queue[0] + (i * sizeof(TW_Event)));
|
||
|
+ tw_dev->free_queue[i] = i;
|
||
|
+ tw_dev->state[i] = TW_S_INITIAL;
|
||
|
+ }
|
||
|
+
|
||
|
+ tw_dev->free_head = TW_Q_START;
|
||
|
+ tw_dev->free_tail = TW_Q_START;
|
||
|
+ tw_dev->error_sequence_id = 1;
|
||
|
+ tw_dev->chrdev_request_id = TW_IOCTL_CHRDEV_FREE;
|
||
|
+
|
||
|
+ mutex_init(&tw_dev->ioctl_lock);
|
||
|
+ init_waitqueue_head(&tw_dev->ioctl_wqueue);
|
||
|
+
|
||
|
+ retval = 0;
|
||
|
+out:
|
||
|
+ return retval;
|
||
|
+} /* End twl_initialize_device_extension() */
|
||
|
+
|
||
|
+/* This function will perform a pci-dma unmap */
|
||
|
+static void twl_unmap_scsi_data(TW_Device_Extension *tw_dev, int request_id)
|
||
|
+{
|
||
|
+ struct scsi_cmnd *cmd = tw_dev->srb[request_id];
|
||
|
+
|
||
|
+ if (cmd->SCp.phase == TW_PHASE_SGLIST)
|
||
|
+ scsi_dma_unmap(cmd);
|
||
|
+} /* End twl_unmap_scsi_data() */
|
||
|
+
|
||
|
+/* This function will handle attention interrupts */
|
||
|
+static int twl_handle_attention_interrupt(TW_Device_Extension *tw_dev)
|
||
|
+{
|
||
|
+ int retval = 1;
|
||
|
+ u32 request_id, doorbell;
|
||
|
+
|
||
|
+ /* Read doorbell status */
|
||
|
+ doorbell = readl(TWL_HOBDB_REG_ADDR(tw_dev));
|
||
|
+
|
||
|
+ /* Check for controller errors */
|
||
|
+ if (doorbell & TWL_DOORBELL_CONTROLLER_ERROR) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0xd, "Microcontroller Error: clearing");
|
||
|
+ goto out;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Check if we need to perform an AEN drain */
|
||
|
+ if (doorbell & TWL_DOORBELL_ATTENTION_INTERRUPT) {
|
||
|
+ if (!(test_and_set_bit(TW_IN_ATTENTION_LOOP, &tw_dev->flags))) {
|
||
|
+ twl_get_request_id(tw_dev, &request_id);
|
||
|
+ if (twl_aen_read_queue(tw_dev, request_id)) {
|
||
|
+ tw_dev->state[request_id] = TW_S_COMPLETED;
|
||
|
+ twl_free_request_id(tw_dev, request_id);
|
||
|
+ clear_bit(TW_IN_ATTENTION_LOOP, &tw_dev->flags);
|
||
|
+ }
|
||
|
+ }
|
||
|
+ }
|
||
|
+
|
||
|
+ retval = 0;
|
||
|
+out:
|
||
|
+ /* Clear doorbell interrupt */
|
||
|
+ TWL_CLEAR_DB_INTERRUPT(tw_dev);
|
||
|
+
|
||
|
+ /* Make sure the clear was flushed by reading it back */
|
||
|
+ readl(TWL_HOBDBC_REG_ADDR(tw_dev));
|
||
|
+
|
||
|
+ return retval;
|
||
|
+} /* End twl_handle_attention_interrupt() */
|
||
|
+
|
||
|
+/* Interrupt service routine */
|
||
|
+static irqreturn_t twl_interrupt(int irq, void *dev_instance)
|
||
|
+{
|
||
|
+ TW_Device_Extension *tw_dev = (TW_Device_Extension *)dev_instance;
|
||
|
+ int i, handled = 0, error = 0;
|
||
|
+ dma_addr_t mfa = 0;
|
||
|
+ u32 reg, regl, regh, response, request_id = 0;
|
||
|
+ struct scsi_cmnd *cmd;
|
||
|
+ TW_Command_Full *full_command_packet;
|
||
|
+
|
||
|
+ spin_lock(tw_dev->host->host_lock);
|
||
|
+
|
||
|
+ /* Read host interrupt status */
|
||
|
+ reg = readl(TWL_HISTAT_REG_ADDR(tw_dev));
|
||
|
+
|
||
|
+ /* Check if this is our interrupt, otherwise bail */
|
||
|
+ if (!(reg & TWL_HISTATUS_VALID_INTERRUPT))
|
||
|
+ goto twl_interrupt_bail;
|
||
|
+
|
||
|
+ handled = 1;
|
||
|
+
|
||
|
+ /* If we are resetting, bail */
|
||
|
+ if (test_bit(TW_IN_RESET, &tw_dev->flags))
|
||
|
+ goto twl_interrupt_bail;
|
||
|
+
|
||
|
+ /* Attention interrupt */
|
||
|
+ if (reg & TWL_HISTATUS_ATTENTION_INTERRUPT) {
|
||
|
+ if (twl_handle_attention_interrupt(tw_dev)) {
|
||
|
+ TWL_MASK_INTERRUPTS(tw_dev);
|
||
|
+ goto twl_interrupt_bail;
|
||
|
+ }
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Response interrupt */
|
||
|
+ while (reg & TWL_HISTATUS_RESPONSE_INTERRUPT) {
|
||
|
+ if (sizeof(dma_addr_t) > 4) {
|
||
|
+ regh = readl(TWL_HOBQPH_REG_ADDR(tw_dev));
|
||
|
+ regl = readl(TWL_HOBQPL_REG_ADDR(tw_dev));
|
||
|
+ mfa = ((u64)regh << 32) | regl;
|
||
|
+ } else
|
||
|
+ mfa = readl(TWL_HOBQPL_REG_ADDR(tw_dev));
|
||
|
+
|
||
|
+ error = 0;
|
||
|
+ response = (u32)mfa;
|
||
|
+
|
||
|
+ /* Check for command packet error */
|
||
|
+ if (!TW_NOTMFA_OUT(response)) {
|
||
|
+ for (i=0;i<TW_Q_LENGTH;i++) {
|
||
|
+ if (tw_dev->sense_buffer_phys[i] == mfa) {
|
||
|
+ request_id = le16_to_cpu(tw_dev->sense_buffer_virt[i]->header_desc.request_id);
|
||
|
+ if (tw_dev->srb[request_id] != NULL)
|
||
|
+ error = twl_fill_sense(tw_dev, i, request_id, 1, 1);
|
||
|
+ else {
|
||
|
+ /* Skip ioctl error prints */
|
||
|
+ if (request_id != tw_dev->chrdev_request_id)
|
||
|
+ error = twl_fill_sense(tw_dev, i, request_id, 0, 1);
|
||
|
+ else
|
||
|
+ memcpy(tw_dev->command_packet_virt[request_id], tw_dev->sense_buffer_virt[i], sizeof(TW_Command_Apache_Header));
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Now re-post the sense buffer */
|
||
|
+ writel((u32)((u64)tw_dev->sense_buffer_phys[i] >> 32), TWL_HOBQPH_REG_ADDR(tw_dev));
|
||
|
+ writel((u32)tw_dev->sense_buffer_phys[i], TWL_HOBQPL_REG_ADDR(tw_dev));
|
||
|
+ break;
|
||
|
+ }
|
||
|
+ }
|
||
|
+ } else
|
||
|
+ request_id = TW_RESID_OUT(response);
|
||
|
+
|
||
|
+ full_command_packet = tw_dev->command_packet_virt[request_id];
|
||
|
+
|
||
|
+ /* Check for correct state */
|
||
|
+ if (tw_dev->state[request_id] != TW_S_POSTED) {
|
||
|
+ if (tw_dev->srb[request_id] != NULL) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0xe, "Received a request id that wasn't posted");
|
||
|
+ TWL_MASK_INTERRUPTS(tw_dev);
|
||
|
+ goto twl_interrupt_bail;
|
||
|
+ }
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Check for internal command completion */
|
||
|
+ if (tw_dev->srb[request_id] == NULL) {
|
||
|
+ if (request_id != tw_dev->chrdev_request_id) {
|
||
|
+ if (twl_aen_complete(tw_dev, request_id))
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0xf, "Error completing AEN during attention interrupt");
|
||
|
+ } else {
|
||
|
+ tw_dev->chrdev_request_id = TW_IOCTL_CHRDEV_FREE;
|
||
|
+ wake_up(&tw_dev->ioctl_wqueue);
|
||
|
+ }
|
||
|
+ } else {
|
||
|
+ cmd = tw_dev->srb[request_id];
|
||
|
+
|
||
|
+ if (!error)
|
||
|
+ cmd->result = (DID_OK << 16);
|
||
|
+
|
||
|
+ /* Report residual bytes for single sgl */
|
||
|
+ if ((scsi_sg_count(cmd) <= 1) && (full_command_packet->command.newcommand.status == 0)) {
|
||
|
+ if (full_command_packet->command.newcommand.sg_list[0].length < scsi_bufflen(tw_dev->srb[request_id]))
|
||
|
+ scsi_set_resid(cmd, scsi_bufflen(cmd) - full_command_packet->command.newcommand.sg_list[0].length);
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Now complete the io */
|
||
|
+ tw_dev->state[request_id] = TW_S_COMPLETED;
|
||
|
+ twl_free_request_id(tw_dev, request_id);
|
||
|
+ tw_dev->posted_request_count--;
|
||
|
+ tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]);
|
||
|
+ twl_unmap_scsi_data(tw_dev, request_id);
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Check for another response interrupt */
|
||
|
+ reg = readl(TWL_HISTAT_REG_ADDR(tw_dev));
|
||
|
+ }
|
||
|
+
|
||
|
+twl_interrupt_bail:
|
||
|
+ spin_unlock(tw_dev->host->host_lock);
|
||
|
+ return IRQ_RETVAL(handled);
|
||
|
+} /* End twl_interrupt() */
|
||
|
+
|
||
|
+/* This function will poll for a register change */
|
||
|
+static int twl_poll_register(TW_Device_Extension *tw_dev, void *reg, u32 value, u32 result, int seconds)
|
||
|
+{
|
||
|
+ unsigned long before;
|
||
|
+ int retval = 1;
|
||
|
+ u32 reg_value;
|
||
|
+
|
||
|
+ reg_value = readl(reg);
|
||
|
+ before = jiffies;
|
||
|
+
|
||
|
+ while ((reg_value & value) != result) {
|
||
|
+ reg_value = readl(reg);
|
||
|
+ if (time_after(jiffies, before + HZ * seconds))
|
||
|
+ goto out;
|
||
|
+ msleep(50);
|
||
|
+ }
|
||
|
+ retval = 0;
|
||
|
+out:
|
||
|
+ return retval;
|
||
|
+} /* End twl_poll_register() */
|
||
|
+
|
||
|
+/* This function will reset a controller */
|
||
|
+static int twl_reset_sequence(TW_Device_Extension *tw_dev, int soft_reset)
|
||
|
+{
|
||
|
+ int retval = 1;
|
||
|
+ int i = 0;
|
||
|
+ u32 status = 0;
|
||
|
+ unsigned short fw_on_ctlr_srl = 0, fw_on_ctlr_arch_id = 0;
|
||
|
+ unsigned short fw_on_ctlr_branch = 0, fw_on_ctlr_build = 0;
|
||
|
+ u32 init_connect_result = 0;
|
||
|
+ int tries = 0;
|
||
|
+ int do_soft_reset = soft_reset;
|
||
|
+
|
||
|
+ while (tries < TW_MAX_RESET_TRIES) {
|
||
|
+ /* Do a soft reset if one is needed */
|
||
|
+ if (do_soft_reset) {
|
||
|
+ TWL_SOFT_RESET(tw_dev);
|
||
|
+
|
||
|
+ /* Make sure controller is in a good state */
|
||
|
+ if (twl_poll_register(tw_dev, TWL_SCRPD3_REG_ADDR(tw_dev), TWL_CONTROLLER_READY, 0x0, 30)) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x10, "Controller never went non-ready during reset sequence");
|
||
|
+ tries++;
|
||
|
+ continue;
|
||
|
+ }
|
||
|
+ if (twl_poll_register(tw_dev, TWL_SCRPD3_REG_ADDR(tw_dev), TWL_CONTROLLER_READY, TWL_CONTROLLER_READY, 60)) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x11, "Controller not ready during reset sequence");
|
||
|
+ tries++;
|
||
|
+ continue;
|
||
|
+ }
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Initconnect */
|
||
|
+ if (twl_initconnection(tw_dev, TW_INIT_MESSAGE_CREDITS,
|
||
|
+ TW_EXTENDED_INIT_CONNECT, TW_CURRENT_DRIVER_SRL,
|
||
|
+ TW_9750_ARCH_ID, TW_CURRENT_DRIVER_BRANCH,
|
||
|
+ TW_CURRENT_DRIVER_BUILD, &fw_on_ctlr_srl,
|
||
|
+ &fw_on_ctlr_arch_id, &fw_on_ctlr_branch,
|
||
|
+ &fw_on_ctlr_build, &init_connect_result)) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x12, "Initconnection failed while checking SRL");
|
||
|
+ do_soft_reset = 1;
|
||
|
+ tries++;
|
||
|
+ continue;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Load sense buffers */
|
||
|
+ while (i < TW_Q_LENGTH) {
|
||
|
+ writel((u32)((u64)tw_dev->sense_buffer_phys[i] >> 32), TWL_HOBQPH_REG_ADDR(tw_dev));
|
||
|
+ writel((u32)tw_dev->sense_buffer_phys[i], TWL_HOBQPL_REG_ADDR(tw_dev));
|
||
|
+
|
||
|
+ /* Check status for over-run after each write */
|
||
|
+ status = readl(TWL_STATUS_REG_ADDR(tw_dev));
|
||
|
+ if (!(status & TWL_STATUS_OVERRUN_SUBMIT))
|
||
|
+ i++;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Now check status */
|
||
|
+ status = readl(TWL_STATUS_REG_ADDR(tw_dev));
|
||
|
+ if (status) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x13, "Bad controller status after loading sense buffers");
|
||
|
+ do_soft_reset = 1;
|
||
|
+ tries++;
|
||
|
+ continue;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Drain the AEN queue */
|
||
|
+ if (twl_aen_drain_queue(tw_dev, soft_reset)) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x14, "AEN drain failed during reset sequence");
|
||
|
+ do_soft_reset = 1;
|
||
|
+ tries++;
|
||
|
+ continue;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Load rest of compatibility struct */
|
||
|
+ strncpy(tw_dev->tw_compat_info.driver_version, TW_DRIVER_VERSION, strlen(TW_DRIVER_VERSION));
|
||
|
+ tw_dev->tw_compat_info.driver_srl_high = TW_CURRENT_DRIVER_SRL;
|
||
|
+ tw_dev->tw_compat_info.driver_branch_high = TW_CURRENT_DRIVER_BRANCH;
|
||
|
+ tw_dev->tw_compat_info.driver_build_high = TW_CURRENT_DRIVER_BUILD;
|
||
|
+ tw_dev->tw_compat_info.driver_srl_low = TW_BASE_FW_SRL;
|
||
|
+ tw_dev->tw_compat_info.driver_branch_low = TW_BASE_FW_BRANCH;
|
||
|
+ tw_dev->tw_compat_info.driver_build_low = TW_BASE_FW_BUILD;
|
||
|
+ tw_dev->tw_compat_info.fw_on_ctlr_srl = fw_on_ctlr_srl;
|
||
|
+ tw_dev->tw_compat_info.fw_on_ctlr_branch = fw_on_ctlr_branch;
|
||
|
+ tw_dev->tw_compat_info.fw_on_ctlr_build = fw_on_ctlr_build;
|
||
|
+
|
||
|
+ /* If we got here, controller is in a good state */
|
||
|
+ retval = 0;
|
||
|
+ goto out;
|
||
|
+ }
|
||
|
+out:
|
||
|
+ return retval;
|
||
|
+} /* End twl_reset_sequence() */
|
||
|
+
|
||
|
+/* This function will reset a device extension */
|
||
|
+static int twl_reset_device_extension(TW_Device_Extension *tw_dev, int ioctl_reset)
|
||
|
+{
|
||
|
+ int i = 0, retval = 1;
|
||
|
+ unsigned long flags = 0;
|
||
|
+
|
||
|
+ /* Block SCSI requests while we are resetting */
|
||
|
+ if (ioctl_reset)
|
||
|
+ scsi_block_requests(tw_dev->host);
|
||
|
+
|
||
|
+ set_bit(TW_IN_RESET, &tw_dev->flags);
|
||
|
+ TWL_MASK_INTERRUPTS(tw_dev);
|
||
|
+ TWL_CLEAR_DB_INTERRUPT(tw_dev);
|
||
|
+
|
||
|
+ spin_lock_irqsave(tw_dev->host->host_lock, flags);
|
||
|
+
|
||
|
+ /* Abort all requests that are in progress */
|
||
|
+ for (i = 0; i < TW_Q_LENGTH; i++) {
|
||
|
+ if ((tw_dev->state[i] != TW_S_FINISHED) &&
|
||
|
+ (tw_dev->state[i] != TW_S_INITIAL) &&
|
||
|
+ (tw_dev->state[i] != TW_S_COMPLETED)) {
|
||
|
+ if (tw_dev->srb[i]) {
|
||
|
+ tw_dev->srb[i]->result = (DID_RESET << 16);
|
||
|
+ tw_dev->srb[i]->scsi_done(tw_dev->srb[i]);
|
||
|
+ twl_unmap_scsi_data(tw_dev, i);
|
||
|
+ }
|
||
|
+ }
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Reset queues and counts */
|
||
|
+ for (i = 0; i < TW_Q_LENGTH; i++) {
|
||
|
+ tw_dev->free_queue[i] = i;
|
||
|
+ tw_dev->state[i] = TW_S_INITIAL;
|
||
|
+ }
|
||
|
+ tw_dev->free_head = TW_Q_START;
|
||
|
+ tw_dev->free_tail = TW_Q_START;
|
||
|
+ tw_dev->posted_request_count = 0;
|
||
|
+
|
||
|
+ spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
|
||
|
+
|
||
|
+ if (twl_reset_sequence(tw_dev, 1))
|
||
|
+ goto out;
|
||
|
+
|
||
|
+ TWL_UNMASK_INTERRUPTS(tw_dev);
|
||
|
+
|
||
|
+ clear_bit(TW_IN_RESET, &tw_dev->flags);
|
||
|
+ tw_dev->chrdev_request_id = TW_IOCTL_CHRDEV_FREE;
|
||
|
+
|
||
|
+ retval = 0;
|
||
|
+out:
|
||
|
+ if (ioctl_reset)
|
||
|
+ scsi_unblock_requests(tw_dev->host);
|
||
|
+ return retval;
|
||
|
+} /* End twl_reset_device_extension() */
|
||
|
+
|
||
|
+/* This funciton returns unit geometry in cylinders/heads/sectors */
|
||
|
+static int twl_scsi_biosparam(struct scsi_device *sdev, struct block_device *bdev, sector_t capacity, int geom[])
|
||
|
+{
|
||
|
+ int heads, sectors;
|
||
|
+ TW_Device_Extension *tw_dev;
|
||
|
+
|
||
|
+ tw_dev = (TW_Device_Extension *)sdev->host->hostdata;
|
||
|
+
|
||
|
+ if (capacity >= 0x200000) {
|
||
|
+ heads = 255;
|
||
|
+ sectors = 63;
|
||
|
+ } else {
|
||
|
+ heads = 64;
|
||
|
+ sectors = 32;
|
||
|
+ }
|
||
|
+
|
||
|
+ geom[0] = heads;
|
||
|
+ geom[1] = sectors;
|
||
|
+ geom[2] = sector_div(capacity, heads * sectors); /* cylinders */
|
||
|
+
|
||
|
+ return 0;
|
||
|
+} /* End twl_scsi_biosparam() */
|
||
|
+
|
||
|
+/* This is the new scsi eh reset function */
|
||
|
+static int twl_scsi_eh_reset(struct scsi_cmnd *SCpnt)
|
||
|
+{
|
||
|
+ TW_Device_Extension *tw_dev = NULL;
|
||
|
+ int retval = FAILED;
|
||
|
+
|
||
|
+ tw_dev = (TW_Device_Extension *)SCpnt->device->host->hostdata;
|
||
|
+
|
||
|
+ tw_dev->num_resets++;
|
||
|
+
|
||
|
+ sdev_printk(KERN_WARNING, SCpnt->device,
|
||
|
+ "WARNING: (0x%02X:0x%04X): Command (0x%x) timed out, resetting card.\n",
|
||
|
+ TW_DRIVER, 0x2c, SCpnt->cmnd[0]);
|
||
|
+
|
||
|
+ /* Make sure we are not issuing an ioctl or resetting from ioctl */
|
||
|
+ mutex_lock(&tw_dev->ioctl_lock);
|
||
|
+
|
||
|
+ /* Now reset the card and some of the device extension data */
|
||
|
+ if (twl_reset_device_extension(tw_dev, 0)) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x15, "Controller reset failed during scsi host reset");
|
||
|
+ goto out;
|
||
|
+ }
|
||
|
+
|
||
|
+ retval = SUCCESS;
|
||
|
+out:
|
||
|
+ mutex_unlock(&tw_dev->ioctl_lock);
|
||
|
+ return retval;
|
||
|
+} /* End twl_scsi_eh_reset() */
|
||
|
+
|
||
|
+/* This is the main scsi queue function to handle scsi opcodes */
|
||
|
+static int twl_scsi_queue(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;
|
||
|
+
|
||
|
+ /* If we are resetting due to timed out ioctl, report as busy */
|
||
|
+ if (test_bit(TW_IN_RESET, &tw_dev->flags)) {
|
||
|
+ retval = SCSI_MLQUEUE_HOST_BUSY;
|
||
|
+ goto out;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Save done function into scsi_cmnd struct */
|
||
|
+ SCpnt->scsi_done = done;
|
||
|
+
|
||
|
+ /* Get a free request id */
|
||
|
+ twl_get_request_id(tw_dev, &request_id);
|
||
|
+
|
||
|
+ /* Save the scsi command for use by the ISR */
|
||
|
+ tw_dev->srb[request_id] = SCpnt;
|
||
|
+
|
||
|
+ /* Initialize phase to zero */
|
||
|
+ SCpnt->SCp.phase = TW_PHASE_INITIAL;
|
||
|
+
|
||
|
+ retval = twl_scsiop_execute_scsi(tw_dev, request_id, NULL, 0, NULL);
|
||
|
+ if (retval) {
|
||
|
+ tw_dev->state[request_id] = TW_S_COMPLETED;
|
||
|
+ twl_free_request_id(tw_dev, request_id);
|
||
|
+ SCpnt->result = (DID_ERROR << 16);
|
||
|
+ done(SCpnt);
|
||
|
+ retval = 0;
|
||
|
+ }
|
||
|
+out:
|
||
|
+ return retval;
|
||
|
+} /* End twl_scsi_queue() */
|
||
|
+
|
||
|
+/* This function tells the controller to shut down */
|
||
|
+static void __twl_shutdown(TW_Device_Extension *tw_dev)
|
||
|
+{
|
||
|
+ /* Disable interrupts */
|
||
|
+ TWL_MASK_INTERRUPTS(tw_dev);
|
||
|
+
|
||
|
+ /* Free up the IRQ */
|
||
|
+ free_irq(tw_dev->tw_pci_dev->irq, tw_dev);
|
||
|
+
|
||
|
+ printk(KERN_WARNING "3w-sas: Shutting down host %d.\n", tw_dev->host->host_no);
|
||
|
+
|
||
|
+ /* Tell the card we are shutting down */
|
||
|
+ if (twl_initconnection(tw_dev, 1, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL)) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x16, "Connection shutdown failed");
|
||
|
+ } else {
|
||
|
+ printk(KERN_WARNING "3w-sas: Shutdown complete.\n");
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Clear doorbell interrupt just before exit */
|
||
|
+ TWL_CLEAR_DB_INTERRUPT(tw_dev);
|
||
|
+} /* End __twl_shutdown() */
|
||
|
+
|
||
|
+/* Wrapper for __twl_shutdown */
|
||
|
+static void twl_shutdown(struct pci_dev *pdev)
|
||
|
+{
|
||
|
+ struct Scsi_Host *host = pci_get_drvdata(pdev);
|
||
|
+ TW_Device_Extension *tw_dev;
|
||
|
+
|
||
|
+ if (!host)
|
||
|
+ return;
|
||
|
+
|
||
|
+ tw_dev = (TW_Device_Extension *)host->hostdata;
|
||
|
+
|
||
|
+ if (tw_dev->online)
|
||
|
+ __twl_shutdown(tw_dev);
|
||
|
+} /* End twl_shutdown() */
|
||
|
+
|
||
|
+/* This function configures unit settings when a unit is coming on-line */
|
||
|
+static int twl_slave_configure(struct scsi_device *sdev)
|
||
|
+{
|
||
|
+ /* Force 60 second timeout */
|
||
|
+ blk_queue_rq_timeout(sdev->request_queue, 60 * HZ);
|
||
|
+
|
||
|
+ return 0;
|
||
|
+} /* End twl_slave_configure() */
|
||
|
+
|
||
|
+/* scsi_host_template initializer */
|
||
|
+static struct scsi_host_template driver_template = {
|
||
|
+ .module = THIS_MODULE,
|
||
|
+ .name = "3w-sas",
|
||
|
+ .queuecommand = twl_scsi_queue,
|
||
|
+ .eh_host_reset_handler = twl_scsi_eh_reset,
|
||
|
+ .bios_param = twl_scsi_biosparam,
|
||
|
+ .change_queue_depth = twl_change_queue_depth,
|
||
|
+ .can_queue = TW_Q_LENGTH-2,
|
||
|
+ .slave_configure = twl_slave_configure,
|
||
|
+ .this_id = -1,
|
||
|
+ .sg_tablesize = TW_LIBERATOR_MAX_SGL_LENGTH,
|
||
|
+ .max_sectors = TW_MAX_SECTORS,
|
||
|
+ .cmd_per_lun = TW_MAX_CMDS_PER_LUN,
|
||
|
+ .use_clustering = ENABLE_CLUSTERING,
|
||
|
+ .shost_attrs = twl_host_attrs,
|
||
|
+ .emulated = 1
|
||
|
+};
|
||
|
+
|
||
|
+/* This function will probe and initialize a card */
|
||
|
+static int __devinit twl_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
|
||
|
+{
|
||
|
+ struct Scsi_Host *host = NULL;
|
||
|
+ TW_Device_Extension *tw_dev;
|
||
|
+ int retval = -ENODEV;
|
||
|
+ int *ptr_phycount, phycount=0;
|
||
|
+
|
||
|
+ retval = pci_enable_device(pdev);
|
||
|
+ if (retval) {
|
||
|
+ TW_PRINTK(host, TW_DRIVER, 0x17, "Failed to enable pci device");
|
||
|
+ goto out_disable_device;
|
||
|
+ }
|
||
|
+
|
||
|
+ 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, 0x18, "Failed to set dma mask");
|
||
|
+ retval = -ENODEV;
|
||
|
+ goto out_disable_device;
|
||
|
+ }
|
||
|
+
|
||
|
+ host = scsi_host_alloc(&driver_template, sizeof(TW_Device_Extension));
|
||
|
+ if (!host) {
|
||
|
+ TW_PRINTK(host, TW_DRIVER, 0x19, "Failed to allocate memory for device extension");
|
||
|
+ retval = -ENOMEM;
|
||
|
+ goto out_disable_device;
|
||
|
+ }
|
||
|
+ tw_dev = shost_priv(host);
|
||
|
+
|
||
|
+ /* Save values to device extension */
|
||
|
+ tw_dev->host = host;
|
||
|
+ tw_dev->tw_pci_dev = pdev;
|
||
|
+
|
||
|
+ if (twl_initialize_device_extension(tw_dev)) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1a, "Failed to initialize device extension");
|
||
|
+ goto out_free_device_extension;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Request IO regions */
|
||
|
+ retval = pci_request_regions(pdev, "3w-sas");
|
||
|
+ if (retval) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1b, "Failed to get mem region");
|
||
|
+ goto out_free_device_extension;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Save base address, use region 1 */
|
||
|
+ tw_dev->base_addr = pci_iomap(pdev, 1, 0);
|
||
|
+ if (!tw_dev->base_addr) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1c, "Failed to ioremap");
|
||
|
+ goto out_release_mem_region;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Disable interrupts on the card */
|
||
|
+ TWL_MASK_INTERRUPTS(tw_dev);
|
||
|
+
|
||
|
+ /* Initialize the card */
|
||
|
+ if (twl_reset_sequence(tw_dev, 0)) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1d, "Controller reset failed during probe");
|
||
|
+ goto out_iounmap;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Set host specific parameters */
|
||
|
+ host->max_id = TW_MAX_UNITS;
|
||
|
+ host->max_cmd_len = TW_MAX_CDB_LEN;
|
||
|
+ host->max_lun = TW_MAX_LUNS;
|
||
|
+ host->max_channel = 0;
|
||
|
+
|
||
|
+ /* Register the card with the kernel SCSI layer */
|
||
|
+ retval = scsi_add_host(host, &pdev->dev);
|
||
|
+ if (retval) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1e, "scsi add host failed");
|
||
|
+ goto out_iounmap;
|
||
|
+ }
|
||
|
+
|
||
|
+ pci_set_drvdata(pdev, host);
|
||
|
+
|
||
|
+ printk(KERN_WARNING "3w-sas: scsi%d: Found an LSI 3ware %s Controller at 0x%llx, IRQ: %d.\n",
|
||
|
+ host->host_no,
|
||
|
+ (char *)twl_get_param(tw_dev, 1, TW_VERSION_TABLE,
|
||
|
+ TW_PARAM_MODEL, TW_PARAM_MODEL_LENGTH),
|
||
|
+ (u64)pci_resource_start(pdev, 1), pdev->irq);
|
||
|
+
|
||
|
+ ptr_phycount = twl_get_param(tw_dev, 2, TW_PARAM_PHY_SUMMARY_TABLE,
|
||
|
+ TW_PARAM_PHYCOUNT, TW_PARAM_PHYCOUNT_LENGTH);
|
||
|
+ if (ptr_phycount)
|
||
|
+ phycount = le32_to_cpu(*(int *)ptr_phycount);
|
||
|
+
|
||
|
+ printk(KERN_WARNING "3w-sas: scsi%d: Firmware %s, BIOS %s, Phys: %d.\n",
|
||
|
+ host->host_no,
|
||
|
+ (char *)twl_get_param(tw_dev, 1, TW_VERSION_TABLE,
|
||
|
+ TW_PARAM_FWVER, TW_PARAM_FWVER_LENGTH),
|
||
|
+ (char *)twl_get_param(tw_dev, 2, TW_VERSION_TABLE,
|
||
|
+ TW_PARAM_BIOSVER, TW_PARAM_BIOSVER_LENGTH),
|
||
|
+ phycount);
|
||
|
+
|
||
|
+ /* Try to enable MSI */
|
||
|
+ if (use_msi && !pci_enable_msi(pdev))
|
||
|
+ set_bit(TW_USING_MSI, &tw_dev->flags);
|
||
|
+
|
||
|
+ /* Now setup the interrupt handler */
|
||
|
+ retval = request_irq(pdev->irq, twl_interrupt, IRQF_SHARED, "3w-sas", tw_dev);
|
||
|
+ if (retval) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1f, "Error requesting IRQ");
|
||
|
+ goto out_remove_host;
|
||
|
+ }
|
||
|
+
|
||
|
+ twl_device_extension_list[twl_device_extension_count] = tw_dev;
|
||
|
+ twl_device_extension_count++;
|
||
|
+
|
||
|
+ /* Re-enable interrupts on the card */
|
||
|
+ TWL_UNMASK_INTERRUPTS(tw_dev);
|
||
|
+
|
||
|
+ /* Finally, scan the host */
|
||
|
+ scsi_scan_host(host);
|
||
|
+
|
||
|
+ /* Add sysfs binary files */
|
||
|
+ if (sysfs_create_bin_file(&host->shost_dev.kobj, &twl_sysfs_aen_read_attr))
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x20, "Failed to create sysfs binary file: 3ware_aen_read");
|
||
|
+ if (sysfs_create_bin_file(&host->shost_dev.kobj, &twl_sysfs_compat_info_attr))
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x21, "Failed to create sysfs binary file: 3ware_compat_info");
|
||
|
+
|
||
|
+ if (twl_major == -1) {
|
||
|
+ if ((twl_major = register_chrdev (0, "twl", &twl_fops)) < 0)
|
||
|
+ TW_PRINTK(host, TW_DRIVER, 0x22, "Failed to register character device");
|
||
|
+ }
|
||
|
+ tw_dev->online = 1;
|
||
|
+ return 0;
|
||
|
+
|
||
|
+out_remove_host:
|
||
|
+ if (test_bit(TW_USING_MSI, &tw_dev->flags))
|
||
|
+ pci_disable_msi(pdev);
|
||
|
+ scsi_remove_host(host);
|
||
|
+out_iounmap:
|
||
|
+ iounmap(tw_dev->base_addr);
|
||
|
+out_release_mem_region:
|
||
|
+ pci_release_regions(pdev);
|
||
|
+out_free_device_extension:
|
||
|
+ twl_free_device_extension(tw_dev);
|
||
|
+ scsi_host_put(host);
|
||
|
+out_disable_device:
|
||
|
+ pci_disable_device(pdev);
|
||
|
+
|
||
|
+ return retval;
|
||
|
+} /* End twl_probe() */
|
||
|
+
|
||
|
+/* This function is called to remove a device */
|
||
|
+static void twl_remove(struct pci_dev *pdev)
|
||
|
+{
|
||
|
+ struct Scsi_Host *host = pci_get_drvdata(pdev);
|
||
|
+ TW_Device_Extension *tw_dev;
|
||
|
+
|
||
|
+ if (!host)
|
||
|
+ return;
|
||
|
+
|
||
|
+ tw_dev = (TW_Device_Extension *)host->hostdata;
|
||
|
+
|
||
|
+ if (!tw_dev->online)
|
||
|
+ return;
|
||
|
+
|
||
|
+ /* Remove sysfs binary files */
|
||
|
+ sysfs_remove_bin_file(&host->shost_dev.kobj, &twl_sysfs_aen_read_attr);
|
||
|
+ sysfs_remove_bin_file(&host->shost_dev.kobj, &twl_sysfs_compat_info_attr);
|
||
|
+
|
||
|
+ scsi_remove_host(tw_dev->host);
|
||
|
+
|
||
|
+ /* Unregister character device */
|
||
|
+ if (twl_major >= 0) {
|
||
|
+ unregister_chrdev(twl_major, "twl");
|
||
|
+ twl_major = -1;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Shutdown the card */
|
||
|
+ __twl_shutdown(tw_dev);
|
||
|
+
|
||
|
+ /* Disable MSI if enabled */
|
||
|
+ if (test_bit(TW_USING_MSI, &tw_dev->flags))
|
||
|
+ pci_disable_msi(pdev);
|
||
|
+
|
||
|
+ /* Free IO remapping */
|
||
|
+ iounmap(tw_dev->base_addr);
|
||
|
+
|
||
|
+ /* Free up the mem region */
|
||
|
+ pci_release_regions(pdev);
|
||
|
+
|
||
|
+ /* Free up device extension resources */
|
||
|
+ twl_free_device_extension(tw_dev);
|
||
|
+
|
||
|
+ scsi_host_put(tw_dev->host);
|
||
|
+ pci_disable_device(pdev);
|
||
|
+ twl_device_extension_count--;
|
||
|
+} /* End twl_remove() */
|
||
|
+
|
||
|
+#ifdef CONFIG_PM
|
||
|
+/* This function is called on PCI suspend */
|
||
|
+static int twl_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-sas: Suspending host %d.\n", tw_dev->host->host_no);
|
||
|
+ /* Disable interrupts */
|
||
|
+ TWL_MASK_INTERRUPTS(tw_dev);
|
||
|
+
|
||
|
+ free_irq(tw_dev->tw_pci_dev->irq, tw_dev);
|
||
|
+
|
||
|
+ /* Tell the card we are shutting down */
|
||
|
+ if (twl_initconnection(tw_dev, 1, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL)) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x23, "Connection shutdown failed during suspend");
|
||
|
+ } else {
|
||
|
+ printk(KERN_WARNING "3w-sas: Suspend complete.\n");
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Clear doorbell interrupt */
|
||
|
+ TWL_CLEAR_DB_INTERRUPT(tw_dev);
|
||
|
+
|
||
|
+ pci_save_state(pdev);
|
||
|
+ pci_disable_device(pdev);
|
||
|
+ pci_set_power_state(pdev, pci_choose_state(pdev, state));
|
||
|
+
|
||
|
+ return 0;
|
||
|
+} /* End twl_suspend() */
|
||
|
+
|
||
|
+/* This function is called on PCI resume */
|
||
|
+static int twl_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-sas: 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, 0x24, "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, 0x25, "Failed to set dma mask during resume");
|
||
|
+ retval = -ENODEV;
|
||
|
+ goto out_disable_device;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Initialize the card */
|
||
|
+ if (twl_reset_sequence(tw_dev, 0)) {
|
||
|
+ retval = -ENODEV;
|
||
|
+ goto out_disable_device;
|
||
|
+ }
|
||
|
+
|
||
|
+ /* Now setup the interrupt handler */
|
||
|
+ retval = request_irq(pdev->irq, twl_interrupt, IRQF_SHARED, "3w-sas", tw_dev);
|
||
|
+ if (retval) {
|
||
|
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x26, "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 */
|
||
|
+ TWL_UNMASK_INTERRUPTS(tw_dev);
|
||
|
+
|
||
|
+ printk(KERN_WARNING "3w-sas: Resume complete.\n");
|
||
|
+ return 0;
|
||
|
+
|
||
|
+out_disable_device:
|
||
|
+ scsi_remove_host(host);
|
||
|
+ pci_disable_device(pdev);
|
||
|
+
|
||
|
+ return retval;
|
||
|
+} /* End twl_resume() */
|
||
|
+#endif
|
||
|
+
|
||
|
+/* PCI Devices supported by this driver */
|
||
|
+static struct pci_device_id twl_pci_tbl[] __devinitdata = {
|
||
|
+ { PCI_VDEVICE(3WARE, PCI_DEVICE_ID_3WARE_9750) },
|
||
|
+ { }
|
||
|
+};
|
||
|
+MODULE_DEVICE_TABLE(pci, twl_pci_tbl);
|
||
|
+
|
||
|
+/* pci_driver initializer */
|
||
|
+static struct pci_driver twl_driver = {
|
||
|
+ .name = "3w-sas",
|
||
|
+ .id_table = twl_pci_tbl,
|
||
|
+ .probe = twl_probe,
|
||
|
+ .remove = twl_remove,
|
||
|
+#ifdef CONFIG_PM
|
||
|
+ .suspend = twl_suspend,
|
||
|
+ .resume = twl_resume,
|
||
|
+#endif
|
||
|
+ .shutdown = twl_shutdown
|
||
|
+};
|
||
|
+
|
||
|
+/* This function is called on driver initialization */
|
||
|
+static int __init twl_init(void)
|
||
|
+{
|
||
|
+ printk(KERN_INFO "LSI 3ware SAS/SATA-RAID Controller device driver for Linux v%s.\n", TW_DRIVER_VERSION);
|
||
|
+
|
||
|
+ return pci_register_driver(&twl_driver);
|
||
|
+} /* End twl_init() */
|
||
|
+
|
||
|
+/* This function is called on driver exit */
|
||
|
+static void __exit twl_exit(void)
|
||
|
+{
|
||
|
+ pci_unregister_driver(&twl_driver);
|
||
|
+} /* End twl_exit() */
|
||
|
+
|
||
|
+module_init(twl_init);
|
||
|
+module_exit(twl_exit);
|
||
|
+
|
||
|
diff --git a/drivers/scsi/3w-sas.h b/drivers/scsi/3w-sas.h
|
||
|
new file mode 100644
|
||
|
index 0000000..d474892
|
||
|
--- /dev/null
|
||
|
+++ b/drivers/scsi/3w-sas.h
|
||
|
@@ -0,0 +1,396 @@
|
||
|
+/*
|
||
|
+ 3w-sas.h -- LSI 3ware SAS/SATA-RAID Controller device driver for Linux.
|
||
|
+
|
||
|
+ Written By: Adam Radford <linuxraid@lsi.com>
|
||
|
+
|
||
|
+ Copyright (C) 2009 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
|
||
|
+ 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
|
||
|
+
|
||
|
+ Bugs/Comments/Suggestions should be mailed to:
|
||
|
+ linuxraid@lsi.com
|
||
|
+
|
||
|
+ For more information, goto:
|
||
|
+ http://www.lsi.com
|
||
|
+*/
|
||
|
+
|
||
|
+#ifndef _3W_SAS_H
|
||
|
+#define _3W_SAS_H
|
||
|
+
|
||
|
+/* AEN severity table */
|
||
|
+static char *twl_aen_severity_table[] =
|
||
|
+{
|
||
|
+ "None", "ERROR", "WARNING", "INFO", "DEBUG", NULL
|
||
|
+};
|
||
|
+
|
||
|
+/* Liberator register offsets */
|
||
|
+#define TWL_STATUS 0x0 /* Status */
|
||
|
+#define TWL_HIBDB 0x20 /* Inbound doorbell */
|
||
|
+#define TWL_HISTAT 0x30 /* Host interrupt status */
|
||
|
+#define TWL_HIMASK 0x34 /* Host interrupt mask */
|
||
|
+#define TWL_HOBDB 0x9C /* Outbound doorbell */
|
||
|
+#define TWL_HOBDBC 0xA0 /* Outbound doorbell clear */
|
||
|
+#define TWL_SCRPD3 0xBC /* Scratchpad */
|
||
|
+#define TWL_HIBQPL 0xC0 /* Host inbound Q low */
|
||
|
+#define TWL_HIBQPH 0xC4 /* Host inbound Q high */
|
||
|
+#define TWL_HOBQPL 0xC8 /* Host outbound Q low */
|
||
|
+#define TWL_HOBQPH 0xCC /* Host outbound Q high */
|
||
|
+#define TWL_HISTATUS_VALID_INTERRUPT 0xC
|
||
|
+#define TWL_HISTATUS_ATTENTION_INTERRUPT 0x4
|
||
|
+#define TWL_HISTATUS_RESPONSE_INTERRUPT 0x8
|
||
|
+#define TWL_STATUS_OVERRUN_SUBMIT 0x2000
|
||
|
+#define TWL_ISSUE_SOFT_RESET 0x100
|
||
|
+#define TWL_CONTROLLER_READY 0x2000
|
||
|
+#define TWL_DOORBELL_CONTROLLER_ERROR 0x200000
|
||
|
+#define TWL_DOORBELL_ATTENTION_INTERRUPT 0x40000
|
||
|
+#define TWL_PULL_MODE 0x1
|
||
|
+
|
||
|
+/* Command packet opcodes used by the driver */
|
||
|
+#define TW_OP_INIT_CONNECTION 0x1
|
||
|
+#define TW_OP_GET_PARAM 0x12
|
||
|
+#define TW_OP_SET_PARAM 0x13
|
||
|
+#define TW_OP_EXECUTE_SCSI 0x10
|
||
|
+
|
||
|
+/* Asynchronous Event Notification (AEN) codes used by the driver */
|
||
|
+#define TW_AEN_QUEUE_EMPTY 0x0000
|
||
|
+#define TW_AEN_SOFT_RESET 0x0001
|
||
|
+#define TW_AEN_SYNC_TIME_WITH_HOST 0x031
|
||
|
+#define TW_AEN_SEVERITY_ERROR 0x1
|
||
|
+#define TW_AEN_SEVERITY_DEBUG 0x4
|
||
|
+#define TW_AEN_NOT_RETRIEVED 0x1
|
||
|
+
|
||
|
+/* Command state defines */
|
||
|
+#define TW_S_INITIAL 0x1 /* Initial state */
|
||
|
+#define TW_S_STARTED 0x2 /* Id in use */
|
||
|
+#define TW_S_POSTED 0x4 /* Posted to the controller */
|
||
|
+#define TW_S_COMPLETED 0x8 /* Completed by isr */
|
||
|
+#define TW_S_FINISHED 0x10 /* I/O completely done */
|
||
|
+
|
||
|
+/* Compatibility defines */
|
||
|
+#define TW_9750_ARCH_ID 10
|
||
|
+#define TW_CURRENT_DRIVER_SRL 40
|
||
|
+#define TW_CURRENT_DRIVER_BUILD 0
|
||
|
+#define TW_CURRENT_DRIVER_BRANCH 0
|
||
|
+
|
||
|
+/* Phase defines */
|
||
|
+#define TW_PHASE_INITIAL 0
|
||
|
+#define TW_PHASE_SGLIST 2
|
||
|
+
|
||
|
+/* Misc defines */
|
||
|
+#define TW_SECTOR_SIZE 512
|
||
|
+#define TW_MAX_UNITS 32
|
||
|
+#define TW_INIT_MESSAGE_CREDITS 0x100
|
||
|
+#define TW_INIT_COMMAND_PACKET_SIZE 0x3
|
||
|
+#define TW_INIT_COMMAND_PACKET_SIZE_EXTENDED 0x6
|
||
|
+#define TW_EXTENDED_INIT_CONNECT 0x2
|
||
|
+#define TW_BASE_FW_SRL 24
|
||
|
+#define TW_BASE_FW_BRANCH 0
|
||
|
+#define TW_BASE_FW_BUILD 1
|
||
|
+#define TW_Q_LENGTH 256
|
||
|
+#define TW_Q_START 0
|
||
|
+#define TW_MAX_SLOT 32
|
||
|
+#define TW_MAX_RESET_TRIES 2
|
||
|
+#define TW_MAX_CMDS_PER_LUN 254
|
||
|
+#define TW_MAX_AEN_DRAIN 255
|
||
|
+#define TW_IN_RESET 2
|
||
|
+#define TW_USING_MSI 3
|
||
|
+#define TW_IN_ATTENTION_LOOP 4
|
||
|
+#define TW_MAX_SECTORS 256
|
||
|
+#define TW_MAX_CDB_LEN 16
|
||
|
+#define TW_IOCTL_CHRDEV_TIMEOUT 60 /* 60 seconds */
|
||
|
+#define TW_IOCTL_CHRDEV_FREE -1
|
||
|
+#define TW_COMMAND_OFFSET 128 /* 128 bytes */
|
||
|
+#define TW_VERSION_TABLE 0x0402
|
||
|
+#define TW_TIMEKEEP_TABLE 0x040A
|
||
|
+#define TW_INFORMATION_TABLE 0x0403
|
||
|
+#define TW_PARAM_FWVER 3
|
||
|
+#define TW_PARAM_FWVER_LENGTH 16
|
||
|
+#define TW_PARAM_BIOSVER 4
|
||
|
+#define TW_PARAM_BIOSVER_LENGTH 16
|
||
|
+#define TW_PARAM_MODEL 8
|
||
|
+#define TW_PARAM_MODEL_LENGTH 16
|
||
|
+#define TW_PARAM_PHY_SUMMARY_TABLE 1
|
||
|
+#define TW_PARAM_PHYCOUNT 2
|
||
|
+#define TW_PARAM_PHYCOUNT_LENGTH 1
|
||
|
+#define TW_IOCTL_FIRMWARE_PASS_THROUGH 0x108 // Used by smartmontools
|
||
|
+#define TW_ALLOCATION_LENGTH 128
|
||
|
+#define TW_SENSE_DATA_LENGTH 18
|
||
|
+#define TW_ERROR_LOGICAL_UNIT_NOT_SUPPORTED 0x10a
|
||
|
+#define TW_ERROR_INVALID_FIELD_IN_CDB 0x10d
|
||
|
+#define TW_ERROR_UNIT_OFFLINE 0x128
|
||
|
+#define TW_MESSAGE_SOURCE_CONTROLLER_ERROR 3
|
||
|
+#define TW_MESSAGE_SOURCE_CONTROLLER_EVENT 4
|
||
|
+#define TW_DRIVER 6
|
||
|
+#ifndef PCI_DEVICE_ID_3WARE_9750
|
||
|
+#define PCI_DEVICE_ID_3WARE_9750 0x1010
|
||
|
+#endif
|
||
|
+
|
||
|
+/* Bitmask macros to eliminate bitfields */
|
||
|
+
|
||
|
+/* opcode: 5, reserved: 3 */
|
||
|
+#define TW_OPRES_IN(x,y) ((x << 5) | (y & 0x1f))
|
||
|
+#define TW_OP_OUT(x) (x & 0x1f)
|
||
|
+
|
||
|
+/* opcode: 5, sgloffset: 3 */
|
||
|
+#define TW_OPSGL_IN(x,y) ((x << 5) | (y & 0x1f))
|
||
|
+#define TW_SGL_OUT(x) ((x >> 5) & 0x7)
|
||
|
+
|
||
|
+/* severity: 3, reserved: 5 */
|
||
|
+#define TW_SEV_OUT(x) (x & 0x7)
|
||
|
+
|
||
|
+/* not_mfa: 1, reserved: 7, status: 8, request_id: 16 */
|
||
|
+#define TW_RESID_OUT(x) ((x >> 16) & 0xffff)
|
||
|
+#define TW_NOTMFA_OUT(x) (x & 0x1)
|
||
|
+
|
||
|
+/* request_id: 12, lun: 4 */
|
||
|
+#define TW_REQ_LUN_IN(lun, request_id) (((lun << 12) & 0xf000) | (request_id & 0xfff))
|
||
|
+#define TW_LUN_OUT(lun) ((lun >> 12) & 0xf)
|
||
|
+
|
||
|
+/* Register access macros */
|
||
|
+#define TWL_STATUS_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + TWL_STATUS)
|
||
|
+#define TWL_HOBQPL_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + TWL_HOBQPL)
|
||
|
+#define TWL_HOBQPH_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + TWL_HOBQPH)
|
||
|
+#define TWL_HOBDB_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + TWL_HOBDB)
|
||
|
+#define TWL_HOBDBC_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + TWL_HOBDBC)
|
||
|
+#define TWL_HIMASK_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + TWL_HIMASK)
|
||
|
+#define TWL_HISTAT_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + TWL_HISTAT)
|
||
|
+#define TWL_HIBQPH_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + TWL_HIBQPH)
|
||
|
+#define TWL_HIBQPL_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + TWL_HIBQPL)
|
||
|
+#define TWL_HIBDB_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + TWL_HIBDB)
|
||
|
+#define TWL_SCRPD3_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + TWL_SCRPD3)
|
||
|
+#define TWL_MASK_INTERRUPTS(x) (writel(~0, TWL_HIMASK_REG_ADDR(tw_dev)))
|
||
|
+#define TWL_UNMASK_INTERRUPTS(x) (writel(~TWL_HISTATUS_VALID_INTERRUPT, TWL_HIMASK_REG_ADDR(tw_dev)))
|
||
|
+#define TWL_CLEAR_DB_INTERRUPT(x) (writel(~0, TWL_HOBDBC_REG_ADDR(tw_dev)))
|
||
|
+#define TWL_SOFT_RESET(x) (writel(TWL_ISSUE_SOFT_RESET, TWL_HIBDB_REG_ADDR(tw_dev)))
|
||
|
+
|
||
|
+/* Macros */
|
||
|
+#define TW_PRINTK(h,a,b,c) { \
|
||
|
+if (h) \
|
||
|
+printk(KERN_WARNING "3w-sas: scsi%d: ERROR: (0x%02X:0x%04X): %s.\n",h->host_no,a,b,c); \
|
||
|
+else \
|
||
|
+printk(KERN_WARNING "3w-sas: ERROR: (0x%02X:0x%04X): %s.\n",a,b,c); \
|
||
|
+}
|
||
|
+#define TW_MAX_LUNS 16
|
||
|
+#define TW_COMMAND_SIZE (sizeof(dma_addr_t) > 4 ? 6 : 4)
|
||
|
+#define TW_LIBERATOR_MAX_SGL_LENGTH (sizeof(dma_addr_t) > 4 ? 46 : 92)
|
||
|
+#define TW_LIBERATOR_MAX_SGL_LENGTH_OLD (sizeof(dma_addr_t) > 4 ? 47 : 94)
|
||
|
+#define TW_PADDING_LENGTH_LIBERATOR 136
|
||
|
+#define TW_PADDING_LENGTH_LIBERATOR_OLD 132
|
||
|
+#define TW_CPU_TO_SGL(x) (sizeof(dma_addr_t) > 4 ? cpu_to_le64(x) : cpu_to_le32(x))
|
||
|
+
|
||
|
+#pragma pack(1)
|
||
|
+
|
||
|
+/* SGL entry */
|
||
|
+typedef struct TAG_TW_SG_Entry_ISO {
|
||
|
+ dma_addr_t address;
|
||
|
+ dma_addr_t length;
|
||
|
+} TW_SG_Entry_ISO;
|
||
|
+
|
||
|
+/* Old Command Packet with ISO SGL */
|
||
|
+typedef struct TW_Command {
|
||
|
+ unsigned char opcode__sgloffset;
|
||
|
+ unsigned char size;
|
||
|
+ unsigned char request_id;
|
||
|
+ unsigned char unit__hostid;
|
||
|
+ /* Second DWORD */
|
||
|
+ unsigned char status;
|
||
|
+ unsigned char flags;
|
||
|
+ union {
|
||
|
+ unsigned short block_count;
|
||
|
+ unsigned short parameter_count;
|
||
|
+ } byte6_offset;
|
||
|
+ union {
|
||
|
+ struct {
|
||
|
+ u32 lba;
|
||
|
+ TW_SG_Entry_ISO sgl[TW_LIBERATOR_MAX_SGL_LENGTH_OLD];
|
||
|
+ unsigned char padding[TW_PADDING_LENGTH_LIBERATOR_OLD];
|
||
|
+ } io;
|
||
|
+ struct {
|
||
|
+ TW_SG_Entry_ISO sgl[TW_LIBERATOR_MAX_SGL_LENGTH_OLD];
|
||
|
+ u32 padding;
|
||
|
+ unsigned char padding2[TW_PADDING_LENGTH_LIBERATOR_OLD];
|
||
|
+ } param;
|
||
|
+ } byte8_offset;
|
||
|
+} TW_Command;
|
||
|
+
|
||
|
+/* New Command Packet with ISO SGL */
|
||
|
+typedef struct TAG_TW_Command_Apache {
|
||
|
+ unsigned char opcode__reserved;
|
||
|
+ unsigned char unit;
|
||
|
+ unsigned short request_id__lunl;
|
||
|
+ unsigned char status;
|
||
|
+ unsigned char sgl_offset;
|
||
|
+ unsigned short sgl_entries__lunh;
|
||
|
+ unsigned char cdb[16];
|
||
|
+ TW_SG_Entry_ISO sg_list[TW_LIBERATOR_MAX_SGL_LENGTH];
|
||
|
+ unsigned char padding[TW_PADDING_LENGTH_LIBERATOR];
|
||
|
+} TW_Command_Apache;
|
||
|
+
|
||
|
+/* New command packet header */
|
||
|
+typedef struct TAG_TW_Command_Apache_Header {
|
||
|
+ unsigned char sense_data[TW_SENSE_DATA_LENGTH];
|
||
|
+ struct {
|
||
|
+ char reserved[4];
|
||
|
+ unsigned short error;
|
||
|
+ unsigned char padding;
|
||
|
+ unsigned char severity__reserved;
|
||
|
+ } status_block;
|
||
|
+ unsigned char err_specific_desc[98];
|
||
|
+ struct {
|
||
|
+ unsigned char size_header;
|
||
|
+ unsigned short request_id;
|
||
|
+ unsigned char size_sense;
|
||
|
+ } header_desc;
|
||
|
+} TW_Command_Apache_Header;
|
||
|
+
|
||
|
+/* This struct is a union of the 2 command packets */
|
||
|
+typedef struct TAG_TW_Command_Full {
|
||
|
+ TW_Command_Apache_Header header;
|
||
|
+ union {
|
||
|
+ TW_Command oldcommand;
|
||
|
+ TW_Command_Apache newcommand;
|
||
|
+ } command;
|
||
|
+} TW_Command_Full;
|
||
|
+
|
||
|
+/* Initconnection structure */
|
||
|
+typedef struct TAG_TW_Initconnect {
|
||
|
+ unsigned char opcode__reserved;
|
||
|
+ unsigned char size;
|
||
|
+ unsigned char request_id;
|
||
|
+ unsigned char res2;
|
||
|
+ unsigned char status;
|
||
|
+ unsigned char flags;
|
||
|
+ unsigned short message_credits;
|
||
|
+ u32 features;
|
||
|
+ unsigned short fw_srl;
|
||
|
+ unsigned short fw_arch_id;
|
||
|
+ unsigned short fw_branch;
|
||
|
+ unsigned short fw_build;
|
||
|
+ u32 result;
|
||
|
+} TW_Initconnect;
|
||
|
+
|
||
|
+/* Event info structure */
|
||
|
+typedef struct TAG_TW_Event
|
||
|
+{
|
||
|
+ unsigned int sequence_id;
|
||
|
+ unsigned int time_stamp_sec;
|
||
|
+ unsigned short aen_code;
|
||
|
+ unsigned char severity;
|
||
|
+ unsigned char retrieved;
|
||
|
+ unsigned char repeat_count;
|
||
|
+ unsigned char parameter_len;
|
||
|
+ unsigned char parameter_data[98];
|
||
|
+} TW_Event;
|
||
|
+
|
||
|
+typedef struct TAG_TW_Ioctl_Driver_Command {
|
||
|
+ unsigned int control_code;
|
||
|
+ unsigned int status;
|
||
|
+ unsigned int unique_id;
|
||
|
+ unsigned int sequence_id;
|
||
|
+ unsigned int os_specific;
|
||
|
+ unsigned int buffer_length;
|
||
|
+} TW_Ioctl_Driver_Command;
|
||
|
+
|
||
|
+typedef struct TAG_TW_Ioctl_Apache {
|
||
|
+ TW_Ioctl_Driver_Command driver_command;
|
||
|
+ char padding[488];
|
||
|
+ TW_Command_Full firmware_command;
|
||
|
+ char data_buffer[1];
|
||
|
+} TW_Ioctl_Buf_Apache;
|
||
|
+
|
||
|
+/* GetParam descriptor */
|
||
|
+typedef struct {
|
||
|
+ unsigned short table_id;
|
||
|
+ unsigned short parameter_id;
|
||
|
+ unsigned short parameter_size_bytes;
|
||
|
+ unsigned short actual_parameter_size_bytes;
|
||
|
+ unsigned char data[1];
|
||
|
+} TW_Param_Apache;
|
||
|
+
|
||
|
+/* Compatibility information structure */
|
||
|
+typedef struct TAG_TW_Compatibility_Info
|
||
|
+{
|
||
|
+ char driver_version[32];
|
||
|
+ unsigned short working_srl;
|
||
|
+ unsigned short working_branch;
|
||
|
+ unsigned short working_build;
|
||
|
+ unsigned short driver_srl_high;
|
||
|
+ unsigned short driver_branch_high;
|
||
|
+ unsigned short driver_build_high;
|
||
|
+ unsigned short driver_srl_low;
|
||
|
+ unsigned short driver_branch_low;
|
||
|
+ unsigned short driver_build_low;
|
||
|
+ unsigned short fw_on_ctlr_srl;
|
||
|
+ unsigned short fw_on_ctlr_branch;
|
||
|
+ unsigned short fw_on_ctlr_build;
|
||
|
+} TW_Compatibility_Info;
|
||
|
+
|
||
|
+#pragma pack()
|
||
|
+
|
||
|
+typedef struct TAG_TW_Device_Extension {
|
||
|
+ void __iomem *base_addr;
|
||
|
+ unsigned long *generic_buffer_virt[TW_Q_LENGTH];
|
||
|
+ dma_addr_t generic_buffer_phys[TW_Q_LENGTH];
|
||
|
+ TW_Command_Full *command_packet_virt[TW_Q_LENGTH];
|
||
|
+ dma_addr_t command_packet_phys[TW_Q_LENGTH];
|
||
|
+ TW_Command_Apache_Header *sense_buffer_virt[TW_Q_LENGTH];
|
||
|
+ dma_addr_t sense_buffer_phys[TW_Q_LENGTH];
|
||
|
+ struct pci_dev *tw_pci_dev;
|
||
|
+ struct scsi_cmnd *srb[TW_Q_LENGTH];
|
||
|
+ unsigned char free_queue[TW_Q_LENGTH];
|
||
|
+ unsigned char free_head;
|
||
|
+ unsigned char free_tail;
|
||
|
+ int state[TW_Q_LENGTH];
|
||
|
+ unsigned int posted_request_count;
|
||
|
+ unsigned int max_posted_request_count;
|
||
|
+ unsigned int max_sgl_entries;
|
||
|
+ unsigned int sgl_entries;
|
||
|
+ unsigned int num_resets;
|
||
|
+ unsigned int sector_count;
|
||
|
+ unsigned int max_sector_count;
|
||
|
+ unsigned int aen_count;
|
||
|
+ struct Scsi_Host *host;
|
||
|
+ long flags;
|
||
|
+ TW_Event *event_queue[TW_Q_LENGTH];
|
||
|
+ unsigned char error_index;
|
||
|
+ unsigned int error_sequence_id;
|
||
|
+ int chrdev_request_id;
|
||
|
+ wait_queue_head_t ioctl_wqueue;
|
||
|
+ struct mutex ioctl_lock;
|
||
|
+ TW_Compatibility_Info tw_compat_info;
|
||
|
+ char online;
|
||
|
+} TW_Device_Extension;
|
||
|
+
|
||
|
+#endif /* _3W_SAS_H */
|
||
|
+
|
||
|
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
|
||
|
index 3fd99c8..991fa1f 100644
|
||
|
--- a/drivers/scsi/Kconfig
|
||
|
+++ b/drivers/scsi/Kconfig
|
||
|
@@ -399,6 +399,17 @@ config SCSI_3W_9XXX
|
||
|
Please read the comments at the top of
|
||
|
<file:drivers/scsi/3w-9xxx.c>.
|
||
|
|
||
|
+config SCSI_3W_SAS
|
||
|
+ tristate "3ware 97xx SAS/SATA-RAID support"
|
||
|
+ depends on PCI && SCSI
|
||
|
+ help
|
||
|
+ This driver supports the LSI 3ware 9750 6Gb/s SAS/SATA-RAID cards.
|
||
|
+
|
||
|
+ <http://www.lsi.com>
|
||
|
+
|
||
|
+ Please read the comments at the top of
|
||
|
+ <file:drivers/scsi/3w-sas.c>.
|
||
|
+
|
||
|
config SCSI_7000FASST
|
||
|
tristate "7000FASST SCSI support"
|
||
|
depends on ISA && SCSI && ISA_DMA_API
|
||
|
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
|
||
|
index 3ad61db..4f0cca9 100644
|
||
|
--- a/drivers/scsi/Makefile
|
||
|
+++ b/drivers/scsi/Makefile
|
||
|
@@ -113,6 +113,7 @@ obj-$(CONFIG_SCSI_MESH) += mesh.o
|
||
|
obj-$(CONFIG_SCSI_MAC53C94) += mac53c94.o
|
||
|
obj-$(CONFIG_BLK_DEV_3W_XXXX_RAID) += 3w-xxxx.o
|
||
|
obj-$(CONFIG_SCSI_3W_9XXX) += 3w-9xxx.o
|
||
|
+obj-$(CONFIG_SCSI_3W_SAS) += 3w-sas.o
|
||
|
obj-$(CONFIG_SCSI_PPA) += ppa.o
|
||
|
obj-$(CONFIG_SCSI_IMM) += imm.o
|
||
|
obj-$(CONFIG_JAZZ_ESP) += esp_scsi.o jazz_esp.o
|
||
|
--
|
||
|
1.6.6
|
||
|
|