[kernel] r15002 - in dists/trunk/linux-2.6/debian: . patches/features/all patches/series
Ben Hutchings
benh at alioth.debian.org
Tue Jan 26 13:01:28 UTC 2010
Author: benh
Date: Tue Jan 26 13:01:12 2010
New Revision: 15002
Log:
Add 3w-sas driver for LSI 3ware 9750 SAS controllers
Added:
dists/trunk/linux-2.6/debian/patches/features/all/SCSI-3w-sas-Add-new-driver-for-LSI-3ware-9750.patch
Modified:
dists/trunk/linux-2.6/debian/changelog
dists/trunk/linux-2.6/debian/patches/series/6
Modified: dists/trunk/linux-2.6/debian/changelog
==============================================================================
--- dists/trunk/linux-2.6/debian/changelog Tue Jan 26 03:17:07 2010 (r15001)
+++ dists/trunk/linux-2.6/debian/changelog Tue Jan 26 13:01:12 2010 (r15002)
@@ -49,6 +49,7 @@
* clockevent: Don't remove broadcast device on halt or CPU hotplug
(Closes: #566547)
* postinst: Enable escape sequences in debconf notes (Closes: #566539)
+ * Add 3w-sas driver for LSI 3ware 9750 SAS controllers
[ Ian Campbell ]
* xen: Enable up to 32G of guest memory on i386.
Added: dists/trunk/linux-2.6/debian/patches/features/all/SCSI-3w-sas-Add-new-driver-for-LSI-3ware-9750.patch
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ dists/trunk/linux-2.6/debian/patches/features/all/SCSI-3w-sas-Add-new-driver-for-LSI-3ware-9750.patch Tue Jan 26 13:01:12 2010 (r15002)
@@ -0,0 +1,2389 @@
+From bc8548932ca011c384ca7ccd6572a305911195ff Mon Sep 17 00:00:00 2001
+From: adam radford <aradford at gmail.com>
+Date: Fri, 23 Oct 2009 14:52:33 -0700
+Subject: [PATCH] [SCSI] 3w-sas: Add new driver for LSI 3ware 9750
+
+commit f619106bdd9d197c947f07108af57946f19a7f7e upstream
+
+[jejb: fix up for new queue depth code]
+[bwh: undo the above]
+Signed-off-by: Adam Radford <aradford at gmail.com>
+Signed-off-by: James Bottomley <James.Bottomley at suse.de>
+---
+ drivers/scsi/3w-sas.c | 1924 +++++++++++++++++++++++++++++++++++++++++++++++++
+ drivers/scsi/3w-sas.h | 396 ++++++++++
+ drivers/scsi/Kconfig | 11 +
+ drivers/scsi/Makefile | 1 +
+ 4 files changed, 2332 insertions(+), 0 deletions(-)
+ create mode 100644 drivers/scsi/3w-sas.c
+ create mode 100644 drivers/scsi/3w-sas.h
+
+diff --git a/drivers/scsi/3w-sas.c b/drivers/scsi/3w-sas.c
+new file mode 100644
+index 0000000..4d314d7
+--- /dev/null
++++ b/drivers/scsi/3w-sas.c
+@@ -0,0 +1,1924 @@
++/*
++ 3w-sas.c -- LSI 3ware SAS/SATA-RAID Controller device driver for Linux.
++
++ Written By: Adam Radford <linuxraid at 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
++
++ Controllers supported by this driver:
++
++ LSI 3ware 9750 6Gb/s SAS/SATA-RAID
++
++ Bugs/Comments/Suggestions should be mailed to:
++ linuxraid at lsi.com
++
++ For more information, goto:
++ http://www.lsi.com
++
++ History
++ -------
++ 3.26.02.000 - Initial driver release.
++*/
++
++#include <linux/module.h>
++#include <linux/reboot.h>
++#include <linux/spinlock.h>
++#include <linux/interrupt.h>
++#include <linux/moduleparam.h>
++#include <linux/errno.h>
++#include <linux/types.h>
++#include <linux/delay.h>
++#include <linux/pci.h>
++#include <linux/time.h>
++#include <linux/mutex.h>
++#include <linux/smp_lock.h>
++#include <asm/io.h>
++#include <asm/irq.h>
++#include <asm/uaccess.h>
++#include <scsi/scsi.h>
++#include <scsi/scsi_host.h>
++#include <scsi/scsi_tcq.h>
++#include <scsi/scsi_cmnd.h>
++#include "3w-sas.h"
++
++/* Globals */
++#define TW_DRIVER_VERSION "3.26.02.000"
++static TW_Device_Extension *twl_device_extension_list[TW_MAX_SLOT];
++static unsigned int twl_device_extension_count;
++static int twl_major = -1;
++extern struct timezone sys_tz;
++
++/* Module parameters */
++MODULE_AUTHOR ("LSI");
++MODULE_DESCRIPTION ("LSI 3ware SAS/SATA-RAID Linux Driver");
++MODULE_LICENSE("GPL");
++MODULE_VERSION(TW_DRIVER_VERSION);
++
++static int use_msi;
++module_param(use_msi, int, S_IRUGO);
++MODULE_PARM_DESC(use_msi, "Use Message Signaled Interrupts. Default: 0");
++
++/* Function prototypes */
++static int twl_reset_device_extension(TW_Device_Extension *tw_dev, int ioctl_reset);
++
++/* Functions */
++
++/* This function returns AENs through sysfs */
++static ssize_t twl_sysfs_aen_read(struct kobject *kobj,
++ struct bin_attribute *bin_attr,
++ char *outbuf, loff_t offset, size_t count)
++{
++ struct device *dev = container_of(kobj, struct device, kobj);
++ struct Scsi_Host *shost = class_to_shost(dev);
++ TW_Device_Extension *tw_dev = (TW_Device_Extension *)shost->hostdata;
++ unsigned long flags = 0;
++ ssize_t ret;
++
++ if (!capable(CAP_SYS_ADMIN))
++ return -EACCES;
++
++ spin_lock_irqsave(tw_dev->host->host_lock, flags);
++ ret = memory_read_from_buffer(outbuf, count, &offset, tw_dev->event_queue[0], sizeof(TW_Event) * TW_Q_LENGTH);
++ spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
++
++ return ret;
++} /* End twl_sysfs_aen_read() */
++
++/* aen_read sysfs attribute initializer */
++static struct bin_attribute twl_sysfs_aen_read_attr = {
++ .attr = {
++ .name = "3ware_aen_read",
++ .mode = S_IRUSR,
++ },
++ .size = 0,
++ .read = twl_sysfs_aen_read
++};
++
++/* This function returns driver compatibility info through sysfs */
++static ssize_t twl_sysfs_compat_info(struct kobject *kobj,
++ struct bin_attribute *bin_attr,
++ char *outbuf, loff_t offset, size_t count)
++{
++ struct device *dev = container_of(kobj, struct device, kobj);
++ struct Scsi_Host *shost = class_to_shost(dev);
++ TW_Device_Extension *tw_dev = (TW_Device_Extension *)shost->hostdata;
++ unsigned long flags = 0;
++ ssize_t ret;
++
++ if (!capable(CAP_SYS_ADMIN))
++ return -EACCES;
++
++ spin_lock_irqsave(tw_dev->host->host_lock, flags);
++ ret = memory_read_from_buffer(outbuf, count, &offset, &tw_dev->tw_compat_info, sizeof(TW_Compatibility_Info));
++ spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
++
++ return ret;
++} /* End twl_sysfs_compat_info() */
++
++/* compat_info sysfs attribute initializer */
++static struct bin_attribute twl_sysfs_compat_info_attr = {
++ .attr = {
++ .name = "3ware_compat_info",
++ .mode = S_IRUSR,
++ },
++ .size = 0,
++ .read = twl_sysfs_compat_info
++};
++
++/* Show some statistics about the card */
++static ssize_t twl_show_stats(struct device *dev,
++ struct device_attribute *attr, char *buf)
++{
++ struct Scsi_Host *host = class_to_shost(dev);
++ TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
++ unsigned long flags = 0;
++ ssize_t len;
++
++ spin_lock_irqsave(tw_dev->host->host_lock, flags);
++ len = snprintf(buf, PAGE_SIZE, "3w-sas Driver version: %s\n"
++ "Current commands posted: %4d\n"
++ "Max commands posted: %4d\n"
++ "Last sgl length: %4d\n"
++ "Max sgl length: %4d\n"
++ "Last sector count: %4d\n"
++ "Max sector count: %4d\n"
++ "SCSI Host Resets: %4d\n"
++ "AEN's: %4d\n",
++ TW_DRIVER_VERSION,
++ tw_dev->posted_request_count,
++ tw_dev->max_posted_request_count,
++ tw_dev->sgl_entries,
++ tw_dev->max_sgl_entries,
++ tw_dev->sector_count,
++ tw_dev->max_sector_count,
++ tw_dev->num_resets,
++ tw_dev->aen_count);
++ spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
++ return len;
++} /* End twl_show_stats() */
++
++/* This function will set a devices queue depth */
++static int twl_change_queue_depth(struct scsi_device *sdev, int queue_depth,
++ int reason)
++{
++ if (reason != SCSI_QDEPTH_DEFAULT)
++ return -EOPNOTSUPP;
++
++ if (queue_depth > TW_Q_LENGTH-2)
++ queue_depth = TW_Q_LENGTH-2;
++ scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth);
++ return queue_depth;
++} /* End twl_change_queue_depth() */
++
++/* stats sysfs attribute initializer */
++static struct device_attribute twl_host_stats_attr = {
++ .attr = {
++ .name = "3ware_stats",
++ .mode = S_IRUGO,
++ },
++ .show = twl_show_stats
++};
++
++/* Host attributes initializer */
++static struct device_attribute *twl_host_attrs[] = {
++ &twl_host_stats_attr,
++ NULL,
++};
++
++/* This function will look up an AEN severity string */
++static char *twl_aen_severity_lookup(unsigned char severity_code)
++{
++ char *retval = NULL;
++
++ if ((severity_code < (unsigned char) TW_AEN_SEVERITY_ERROR) ||
++ (severity_code > (unsigned char) TW_AEN_SEVERITY_DEBUG))
++ goto out;
++
++ retval = twl_aen_severity_table[severity_code];
++out:
++ return retval;
++} /* End twl_aen_severity_lookup() */
++
++/* This function will queue an event */
++static void twl_aen_queue_event(TW_Device_Extension *tw_dev, TW_Command_Apache_Header *header)
++{
++ u32 local_time;
++ struct timeval time;
++ TW_Event *event;
++ unsigned short aen;
++ char host[16];
++ char *error_str;
++
++ tw_dev->aen_count++;
++
++ /* Fill out event info */
++ event = tw_dev->event_queue[tw_dev->error_index];
++
++ host[0] = '\0';
++ if (tw_dev->host)
++ sprintf(host, " scsi%d:", tw_dev->host->host_no);
++
++ aen = le16_to_cpu(header->status_block.error);
++ memset(event, 0, sizeof(TW_Event));
++
++ event->severity = TW_SEV_OUT(header->status_block.severity__reserved);
++ do_gettimeofday(&time);
++ local_time = (u32)(time.tv_sec - (sys_tz.tz_minuteswest * 60));
++ event->time_stamp_sec = local_time;
++ event->aen_code = aen;
++ event->retrieved = TW_AEN_NOT_RETRIEVED;
++ event->sequence_id = tw_dev->error_sequence_id;
++ tw_dev->error_sequence_id++;
++
++ /* Check for embedded error string */
++ error_str = &(header->err_specific_desc[strlen(header->err_specific_desc)+1]);
++
++ header->err_specific_desc[sizeof(header->err_specific_desc) - 1] = '\0';
++ event->parameter_len = strlen(header->err_specific_desc);
++ memcpy(event->parameter_data, header->err_specific_desc, event->parameter_len + 1 + strlen(error_str));
++ if (event->severity != TW_AEN_SEVERITY_DEBUG)
++ printk(KERN_WARNING "3w-sas:%s AEN: %s (0x%02X:0x%04X): %s:%s.\n",
++ host,
++ twl_aen_severity_lookup(TW_SEV_OUT(header->status_block.severity__reserved)),
++ TW_MESSAGE_SOURCE_CONTROLLER_EVENT, aen, error_str,
++ header->err_specific_desc);
++ else
++ 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 */
++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 at 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 at 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
+
Modified: dists/trunk/linux-2.6/debian/patches/series/6
==============================================================================
--- dists/trunk/linux-2.6/debian/patches/series/6 Tue Jan 26 03:17:07 2010 (r15001)
+++ dists/trunk/linux-2.6/debian/patches/series/6 Tue Jan 26 13:01:12 2010 (r15002)
@@ -32,3 +32,4 @@
+ bugfix/all/stable/2.6.32.6.patch
+ bugfix/all/clockevents-Dont-remove-broadcast-device.patch
+ bugfix/all/clockevents-Add-missing-include.patch
++ features/all/SCSI-3w-sas-Add-new-driver-for-LSI-3ware-9750.patch
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