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2351 lines
76 KiB
C
2351 lines
76 KiB
C
/*
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3w-9xxx.c -- 3ware 9000 Storage Controller device driver for Linux.
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Written By: Adam Radford <linuxraid@lsi.com>
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Modifications By: Tom Couch <linuxraid@lsi.com>
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Copyright (C) 2004-2009 Applied Micro Circuits Corporation.
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Copyright (C) 2010 LSI Corporation.
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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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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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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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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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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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Bugs/Comments/Suggestions should be mailed to:
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linuxraid@lsi.com
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For more information, goto:
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http://www.lsi.com
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Note: This version of the driver does not contain a bundled firmware
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image.
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History
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-------
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2.26.02.000 - Driver cleanup for kernel submission.
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2.26.02.001 - Replace schedule_timeout() calls with msleep().
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2.26.02.002 - Add support for PAE mode.
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Add lun support.
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Fix twa_remove() to free irq handler/unregister_chrdev()
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before shutting down card.
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Change to new 'change_queue_depth' api.
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Fix 'handled=1' ISR usage, remove bogus IRQ check.
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Remove un-needed eh_abort handler.
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Add support for embedded firmware error strings.
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2.26.02.003 - Correctly handle single sgl's with use_sg=1.
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2.26.02.004 - Add support for 9550SX controllers.
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2.26.02.005 - Fix use_sg == 0 mapping on systems with 4GB or higher.
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2.26.02.006 - Fix 9550SX pchip reset timeout.
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Add big endian support.
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2.26.02.007 - Disable local interrupts during kmap/unmap_atomic().
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2.26.02.008 - Free irq handler in __twa_shutdown().
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Serialize reset code.
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Add support for 9650SE controllers.
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2.26.02.009 - Fix dma mask setting to fallback to 32-bit if 64-bit fails.
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2.26.02.010 - Add support for 9690SA controllers.
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2.26.02.011 - Increase max AENs drained to 256.
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Add MSI support and "use_msi" module parameter.
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Fix bug in twa_get_param() on 4GB+.
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Use pci_resource_len() for ioremap().
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2.26.02.012 - Add power management support.
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2.26.02.013 - Fix bug in twa_load_sgl().
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2.26.02.014 - Force 60 second timeout default.
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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/slab.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-9xxx.h"
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/* Globals */
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#define TW_DRIVER_VERSION "2.26.02.014"
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static DEFINE_MUTEX(twa_chrdev_mutex);
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static TW_Device_Extension *twa_device_extension_list[TW_MAX_SLOT];
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static unsigned int twa_device_extension_count;
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static int twa_major = -1;
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extern struct timezone sys_tz;
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/* Module parameters */
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MODULE_AUTHOR ("LSI");
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MODULE_DESCRIPTION ("3ware 9000 Storage Controller Linux Driver");
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MODULE_LICENSE("GPL");
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MODULE_VERSION(TW_DRIVER_VERSION);
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static int use_msi = 0;
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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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/* Function prototypes */
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static void twa_aen_queue_event(TW_Device_Extension *tw_dev, TW_Command_Apache_Header *header);
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static int twa_aen_read_queue(TW_Device_Extension *tw_dev, int request_id);
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static char *twa_aen_severity_lookup(unsigned char severity_code);
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static void twa_aen_sync_time(TW_Device_Extension *tw_dev, int request_id);
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static long twa_chrdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
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static int twa_chrdev_open(struct inode *inode, struct file *file);
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static int twa_fill_sense(TW_Device_Extension *tw_dev, int request_id, int copy_sense, int print_host);
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static void twa_free_request_id(TW_Device_Extension *tw_dev,int request_id);
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static void twa_get_request_id(TW_Device_Extension *tw_dev, int *request_id);
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static int twa_initconnection(TW_Device_Extension *tw_dev, int message_credits,
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u32 set_features, unsigned short current_fw_srl,
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unsigned short current_fw_arch_id,
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unsigned short current_fw_branch,
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unsigned short current_fw_build,
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unsigned short *fw_on_ctlr_srl,
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unsigned short *fw_on_ctlr_arch_id,
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unsigned short *fw_on_ctlr_branch,
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unsigned short *fw_on_ctlr_build,
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u32 *init_connect_result);
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static void twa_load_sgl(TW_Device_Extension *tw_dev, TW_Command_Full *full_command_packet, int request_id, dma_addr_t dma_handle, int length);
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static int twa_poll_response(TW_Device_Extension *tw_dev, int request_id, int seconds);
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static int twa_poll_status_gone(TW_Device_Extension *tw_dev, u32 flag, int seconds);
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static int twa_post_command_packet(TW_Device_Extension *tw_dev, int request_id, char internal);
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static int twa_reset_device_extension(TW_Device_Extension *tw_dev);
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static int twa_reset_sequence(TW_Device_Extension *tw_dev, int soft_reset);
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static int twa_scsiop_execute_scsi(TW_Device_Extension *tw_dev, int request_id, char *cdb, int use_sg, TW_SG_Entry *sglistarg);
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static void twa_scsiop_execute_scsi_complete(TW_Device_Extension *tw_dev, int request_id);
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static char *twa_string_lookup(twa_message_type *table, unsigned int aen_code);
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static void twa_unmap_scsi_data(TW_Device_Extension *tw_dev, int request_id);
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/* Functions */
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/* Show some statistics about the card */
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static ssize_t twa_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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spin_lock_irqsave(tw_dev->host->host_lock, flags);
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len = snprintf(buf, PAGE_SIZE, "3w-9xxx 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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"Current pending commands: %4d\n"
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"Max pending commands: %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->pending_request_count,
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tw_dev->max_pending_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 twa_show_stats() */
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/* This function will set a devices queue depth */
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static int twa_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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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 twa_change_queue_depth() */
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/* Create sysfs 'stats' entry */
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static struct device_attribute twa_host_stats_attr = {
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.attr = {
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.name = "stats",
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.mode = S_IRUGO,
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},
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.show = twa_show_stats
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};
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/* Host attributes initializer */
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static struct device_attribute *twa_host_attrs[] = {
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&twa_host_stats_attr,
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NULL,
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};
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/* File operations struct for character device */
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static const struct file_operations twa_fops = {
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.owner = THIS_MODULE,
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.unlocked_ioctl = twa_chrdev_ioctl,
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.open = twa_chrdev_open,
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.release = NULL,
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.llseek = noop_llseek,
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};
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/* This function will complete an aen request from the isr */
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static int twa_aen_complete(TW_Device_Extension *tw_dev, int request_id)
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{
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TW_Command_Full *full_command_packet;
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TW_Command *command_packet;
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TW_Command_Apache_Header *header;
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unsigned short aen;
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int retval = 1;
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header = (TW_Command_Apache_Header *)tw_dev->generic_buffer_virt[request_id];
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tw_dev->posted_request_count--;
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aen = le16_to_cpu(header->status_block.error);
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full_command_packet = tw_dev->command_packet_virt[request_id];
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command_packet = &full_command_packet->command.oldcommand;
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/* First check for internal completion of set param for time sync */
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if (TW_OP_OUT(command_packet->opcode__sgloffset) == TW_OP_SET_PARAM) {
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/* Keep reading the queue in case there are more aen's */
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if (twa_aen_read_queue(tw_dev, request_id))
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goto out2;
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else {
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retval = 0;
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goto out;
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}
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}
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switch (aen) {
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case TW_AEN_QUEUE_EMPTY:
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/* Quit reading the queue if this is the last one */
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break;
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case TW_AEN_SYNC_TIME_WITH_HOST:
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twa_aen_sync_time(tw_dev, request_id);
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retval = 0;
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goto out;
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default:
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twa_aen_queue_event(tw_dev, header);
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/* If there are more aen's, keep reading the queue */
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if (twa_aen_read_queue(tw_dev, request_id))
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goto out2;
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else {
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retval = 0;
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goto out;
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}
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}
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retval = 0;
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out2:
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tw_dev->state[request_id] = TW_S_COMPLETED;
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twa_free_request_id(tw_dev, request_id);
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clear_bit(TW_IN_ATTENTION_LOOP, &tw_dev->flags);
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out:
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return retval;
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} /* End twa_aen_complete() */
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/* This function will drain aen queue */
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static int twa_aen_drain_queue(TW_Device_Extension *tw_dev, int no_check_reset)
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{
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int request_id = 0;
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char cdb[TW_MAX_CDB_LEN];
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TW_SG_Entry sglist[1];
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int finished = 0, count = 0;
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TW_Command_Full *full_command_packet;
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TW_Command_Apache_Header *header;
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unsigned short aen;
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int first_reset = 0, queue = 0, retval = 1;
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if (no_check_reset)
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first_reset = 0;
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else
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first_reset = 1;
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full_command_packet = tw_dev->command_packet_virt[request_id];
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memset(full_command_packet, 0, sizeof(TW_Command_Full));
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/* Initialize cdb */
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memset(&cdb, 0, TW_MAX_CDB_LEN);
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cdb[0] = REQUEST_SENSE; /* opcode */
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cdb[4] = TW_ALLOCATION_LENGTH; /* allocation length */
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/* Initialize sglist */
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memset(&sglist, 0, sizeof(TW_SG_Entry));
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sglist[0].length = TW_SECTOR_SIZE;
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sglist[0].address = tw_dev->generic_buffer_phys[request_id];
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if (sglist[0].address & TW_ALIGNMENT_9000_SGL) {
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TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1, "Found unaligned address during AEN drain");
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goto out;
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}
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/* Mark internal command */
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tw_dev->srb[request_id] = NULL;
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do {
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/* Send command to the board */
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if (twa_scsiop_execute_scsi(tw_dev, request_id, cdb, 1, sglist)) {
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TW_PRINTK(tw_dev->host, TW_DRIVER, 0x2, "Error posting request sense");
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goto out;
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}
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/* Now poll for completion */
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if (twa_poll_response(tw_dev, request_id, 30)) {
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TW_PRINTK(tw_dev->host, TW_DRIVER, 0x3, "No valid response while draining AEN queue");
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tw_dev->posted_request_count--;
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goto out;
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}
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tw_dev->posted_request_count--;
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header = (TW_Command_Apache_Header *)tw_dev->generic_buffer_virt[request_id];
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aen = le16_to_cpu(header->status_block.error);
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queue = 0;
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count++;
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switch (aen) {
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case TW_AEN_QUEUE_EMPTY:
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if (first_reset != 1)
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goto out;
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else
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finished = 1;
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break;
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case TW_AEN_SOFT_RESET:
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if (first_reset == 0)
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first_reset = 1;
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else
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queue = 1;
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break;
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case TW_AEN_SYNC_TIME_WITH_HOST:
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break;
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default:
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queue = 1;
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}
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/* Now queue an event info */
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if (queue)
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twa_aen_queue_event(tw_dev, header);
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} while ((finished == 0) && (count < TW_MAX_AEN_DRAIN));
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if (count == TW_MAX_AEN_DRAIN)
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goto out;
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retval = 0;
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out:
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tw_dev->state[request_id] = TW_S_INITIAL;
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return retval;
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} /* End twa_aen_drain_queue() */
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/* This function will queue an event */
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static void twa_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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tw_dev->aen_count++;
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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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/* Check for clobber */
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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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if (event->retrieved == TW_AEN_NOT_RETRIEVED)
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tw_dev->aen_clobber = 1;
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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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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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/* 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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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 + (error_str[0] == '\0' ? 0 : (1 + strlen(error_str))));
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if (event->severity != TW_AEN_SEVERITY_DEBUG)
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printk(KERN_WARNING "3w-9xxx:%s AEN: %s (0x%02X:0x%04X): %s:%s.\n",
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host,
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twa_aen_severity_lookup(TW_SEV_OUT(header->status_block.severity__reserved)),
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TW_MESSAGE_SOURCE_CONTROLLER_EVENT, aen,
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error_str[0] == '\0' ? twa_string_lookup(twa_aen_table, aen) : error_str,
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header->err_specific_desc);
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else
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tw_dev->aen_count--;
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if ((tw_dev->error_index + 1) == TW_Q_LENGTH)
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tw_dev->event_queue_wrapped = 1;
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tw_dev->error_index = (tw_dev->error_index + 1 ) % TW_Q_LENGTH;
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} /* End twa_aen_queue_event() */
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|
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/* This function will read the aen queue from the isr */
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static int twa_aen_read_queue(TW_Device_Extension *tw_dev, int request_id)
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{
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char cdb[TW_MAX_CDB_LEN];
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TW_SG_Entry sglist[1];
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TW_Command_Full *full_command_packet;
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int retval = 1;
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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));
|
|
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 (twa_scsiop_execute_scsi(tw_dev, request_id, cdb, 1, sglist)) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x4, "Post failed while reading AEN queue");
|
|
goto out;
|
|
}
|
|
retval = 0;
|
|
out:
|
|
return retval;
|
|
} /* End twa_aen_read_queue() */
|
|
|
|
/* This function will look up an AEN severity string */
|
|
static char *twa_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 = twa_aen_severity_table[severity_code];
|
|
out:
|
|
return retval;
|
|
} /* End twa_aen_severity_lookup() */
|
|
|
|
/* This function will sync firmware time with the host time */
|
|
static void twa_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 = cpu_to_le32(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 */
|
|
twa_post_command_packet(tw_dev, request_id, 1);
|
|
} /* End twa_aen_sync_time() */
|
|
|
|
/* This function will allocate memory and check if it is correctly aligned */
|
|
static int twa_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;
|
|
}
|
|
|
|
if ((unsigned long)cpu_addr % (TW_ALIGNMENT_9000)) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x6, "Failed to allocate correctly aligned memory");
|
|
pci_free_consistent(tw_dev->tw_pci_dev, size*TW_Q_LENGTH, cpu_addr, dma_handle);
|
|
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;
|
|
}
|
|
}
|
|
retval = 0;
|
|
out:
|
|
return retval;
|
|
} /* End twa_allocate_memory() */
|
|
|
|
/* This function will check the status register for unexpected bits */
|
|
static int twa_check_bits(u32 status_reg_value)
|
|
{
|
|
int retval = 1;
|
|
|
|
if ((status_reg_value & TW_STATUS_EXPECTED_BITS) != TW_STATUS_EXPECTED_BITS)
|
|
goto out;
|
|
if ((status_reg_value & TW_STATUS_UNEXPECTED_BITS) != 0)
|
|
goto out;
|
|
|
|
retval = 0;
|
|
out:
|
|
return retval;
|
|
} /* End twa_check_bits() */
|
|
|
|
/* This function will check the srl and decide if we are compatible */
|
|
static int twa_check_srl(TW_Device_Extension *tw_dev, int *flashed)
|
|
{
|
|
int retval = 1;
|
|
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;
|
|
|
|
if (twa_initconnection(tw_dev, TW_INIT_MESSAGE_CREDITS,
|
|
TW_EXTENDED_INIT_CONNECT, TW_CURRENT_DRIVER_SRL,
|
|
TW_9000_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, 0x7, "Initconnection failed while checking SRL");
|
|
goto out;
|
|
}
|
|
|
|
tw_dev->tw_compat_info.working_srl = fw_on_ctlr_srl;
|
|
tw_dev->tw_compat_info.working_branch = fw_on_ctlr_branch;
|
|
tw_dev->tw_compat_info.working_build = fw_on_ctlr_build;
|
|
|
|
/* Try base mode compatibility */
|
|
if (!(init_connect_result & TW_CTLR_FW_COMPATIBLE)) {
|
|
if (twa_initconnection(tw_dev, TW_INIT_MESSAGE_CREDITS,
|
|
TW_EXTENDED_INIT_CONNECT,
|
|
TW_BASE_FW_SRL, TW_9000_ARCH_ID,
|
|
TW_BASE_FW_BRANCH, TW_BASE_FW_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, 0xa, "Initconnection (base mode) failed while checking SRL");
|
|
goto out;
|
|
}
|
|
if (!(init_connect_result & TW_CTLR_FW_COMPATIBLE)) {
|
|
if (TW_CURRENT_DRIVER_SRL > fw_on_ctlr_srl) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x32, "Firmware and driver incompatibility: please upgrade firmware");
|
|
} else {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x33, "Firmware and driver incompatibility: please upgrade driver");
|
|
}
|
|
goto out;
|
|
}
|
|
tw_dev->tw_compat_info.working_srl = TW_BASE_FW_SRL;
|
|
tw_dev->tw_compat_info.working_branch = TW_BASE_FW_BRANCH;
|
|
tw_dev->tw_compat_info.working_build = TW_BASE_FW_BUILD;
|
|
}
|
|
|
|
/* 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;
|
|
|
|
retval = 0;
|
|
out:
|
|
return retval;
|
|
} /* End twa_check_srl() */
|
|
|
|
/* This function handles ioctl for the character device */
|
|
static long twa_chrdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
|
|
{
|
|
struct inode *inode = file_inode(file);
|
|
long timeout;
|
|
unsigned long *cpu_addr, data_buffer_length_adjusted = 0, flags = 0;
|
|
dma_addr_t dma_handle;
|
|
int request_id = 0;
|
|
unsigned int sequence_id = 0;
|
|
unsigned char event_index, start_index;
|
|
TW_Ioctl_Driver_Command driver_command;
|
|
TW_Ioctl_Buf_Apache *tw_ioctl;
|
|
TW_Lock *tw_lock;
|
|
TW_Command_Full *full_command_packet;
|
|
TW_Compatibility_Info *tw_compat_info;
|
|
TW_Event *event;
|
|
struct timeval current_time;
|
|
u32 current_time_ms;
|
|
TW_Device_Extension *tw_dev = twa_device_extension_list[iminor(inode)];
|
|
int retval = TW_IOCTL_ERROR_OS_EFAULT;
|
|
void __user *argp = (void __user *)arg;
|
|
|
|
mutex_lock(&twa_chrdev_mutex);
|
|
|
|
/* Only let one of these through at a time */
|
|
if (mutex_lock_interruptible(&tw_dev->ioctl_lock)) {
|
|
retval = TW_IOCTL_ERROR_OS_EINTR;
|
|
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 = TW_IOCTL_ERROR_OS_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 = TW_IOCTL_ERROR_OS_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);
|
|
twa_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_ioctl->firmware_command;
|
|
|
|
/* Load request id and sglist for both command types */
|
|
twa_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 */
|
|
twa_post_command_packet(tw_dev, request_id, 1);
|
|
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-9xxx: scsi%d: WARNING: (0x%02X:0x%04X): Character ioctl (0x%x) timed out, resetting card.\n",
|
|
tw_dev->host->host_no, TW_DRIVER, 0x37,
|
|
cmd);
|
|
retval = TW_IOCTL_ERROR_OS_EIO;
|
|
twa_reset_device_extension(tw_dev);
|
|
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;
|
|
twa_free_request_id(tw_dev, request_id);
|
|
spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
|
|
break;
|
|
case TW_IOCTL_GET_COMPATIBILITY_INFO:
|
|
tw_ioctl->driver_command.status = 0;
|
|
/* Copy compatibility struct into ioctl data buffer */
|
|
tw_compat_info = (TW_Compatibility_Info *)tw_ioctl->data_buffer;
|
|
memcpy(tw_compat_info, &tw_dev->tw_compat_info, sizeof(TW_Compatibility_Info));
|
|
break;
|
|
case TW_IOCTL_GET_LAST_EVENT:
|
|
if (tw_dev->event_queue_wrapped) {
|
|
if (tw_dev->aen_clobber) {
|
|
tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_AEN_CLOBBER;
|
|
tw_dev->aen_clobber = 0;
|
|
} else
|
|
tw_ioctl->driver_command.status = 0;
|
|
} else {
|
|
if (!tw_dev->error_index) {
|
|
tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_NO_MORE_EVENTS;
|
|
break;
|
|
}
|
|
tw_ioctl->driver_command.status = 0;
|
|
}
|
|
event_index = (tw_dev->error_index - 1 + TW_Q_LENGTH) % TW_Q_LENGTH;
|
|
memcpy(tw_ioctl->data_buffer, tw_dev->event_queue[event_index], sizeof(TW_Event));
|
|
tw_dev->event_queue[event_index]->retrieved = TW_AEN_RETRIEVED;
|
|
break;
|
|
case TW_IOCTL_GET_FIRST_EVENT:
|
|
if (tw_dev->event_queue_wrapped) {
|
|
if (tw_dev->aen_clobber) {
|
|
tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_AEN_CLOBBER;
|
|
tw_dev->aen_clobber = 0;
|
|
} else
|
|
tw_ioctl->driver_command.status = 0;
|
|
event_index = tw_dev->error_index;
|
|
} else {
|
|
if (!tw_dev->error_index) {
|
|
tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_NO_MORE_EVENTS;
|
|
break;
|
|
}
|
|
tw_ioctl->driver_command.status = 0;
|
|
event_index = 0;
|
|
}
|
|
memcpy(tw_ioctl->data_buffer, tw_dev->event_queue[event_index], sizeof(TW_Event));
|
|
tw_dev->event_queue[event_index]->retrieved = TW_AEN_RETRIEVED;
|
|
break;
|
|
case TW_IOCTL_GET_NEXT_EVENT:
|
|
event = (TW_Event *)tw_ioctl->data_buffer;
|
|
sequence_id = event->sequence_id;
|
|
tw_ioctl->driver_command.status = 0;
|
|
|
|
if (tw_dev->event_queue_wrapped) {
|
|
if (tw_dev->aen_clobber) {
|
|
tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_AEN_CLOBBER;
|
|
tw_dev->aen_clobber = 0;
|
|
}
|
|
start_index = tw_dev->error_index;
|
|
} else {
|
|
if (!tw_dev->error_index) {
|
|
tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_NO_MORE_EVENTS;
|
|
break;
|
|
}
|
|
start_index = 0;
|
|
}
|
|
event_index = (start_index + sequence_id - tw_dev->event_queue[start_index]->sequence_id + 1) % TW_Q_LENGTH;
|
|
|
|
if (!(tw_dev->event_queue[event_index]->sequence_id > sequence_id)) {
|
|
if (tw_ioctl->driver_command.status == TW_IOCTL_ERROR_STATUS_AEN_CLOBBER)
|
|
tw_dev->aen_clobber = 1;
|
|
tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_NO_MORE_EVENTS;
|
|
break;
|
|
}
|
|
memcpy(tw_ioctl->data_buffer, tw_dev->event_queue[event_index], sizeof(TW_Event));
|
|
tw_dev->event_queue[event_index]->retrieved = TW_AEN_RETRIEVED;
|
|
break;
|
|
case TW_IOCTL_GET_PREVIOUS_EVENT:
|
|
event = (TW_Event *)tw_ioctl->data_buffer;
|
|
sequence_id = event->sequence_id;
|
|
tw_ioctl->driver_command.status = 0;
|
|
|
|
if (tw_dev->event_queue_wrapped) {
|
|
if (tw_dev->aen_clobber) {
|
|
tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_AEN_CLOBBER;
|
|
tw_dev->aen_clobber = 0;
|
|
}
|
|
start_index = tw_dev->error_index;
|
|
} else {
|
|
if (!tw_dev->error_index) {
|
|
tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_NO_MORE_EVENTS;
|
|
break;
|
|
}
|
|
start_index = 0;
|
|
}
|
|
event_index = (start_index + sequence_id - tw_dev->event_queue[start_index]->sequence_id - 1) % TW_Q_LENGTH;
|
|
|
|
if (!(tw_dev->event_queue[event_index]->sequence_id < sequence_id)) {
|
|
if (tw_ioctl->driver_command.status == TW_IOCTL_ERROR_STATUS_AEN_CLOBBER)
|
|
tw_dev->aen_clobber = 1;
|
|
tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_NO_MORE_EVENTS;
|
|
break;
|
|
}
|
|
memcpy(tw_ioctl->data_buffer, tw_dev->event_queue[event_index], sizeof(TW_Event));
|
|
tw_dev->event_queue[event_index]->retrieved = TW_AEN_RETRIEVED;
|
|
break;
|
|
case TW_IOCTL_GET_LOCK:
|
|
tw_lock = (TW_Lock *)tw_ioctl->data_buffer;
|
|
do_gettimeofday(¤t_time);
|
|
current_time_ms = (current_time.tv_sec * 1000) + (current_time.tv_usec / 1000);
|
|
|
|
if ((tw_lock->force_flag == 1) || (tw_dev->ioctl_sem_lock == 0) || (current_time_ms >= tw_dev->ioctl_msec)) {
|
|
tw_dev->ioctl_sem_lock = 1;
|
|
tw_dev->ioctl_msec = current_time_ms + tw_lock->timeout_msec;
|
|
tw_ioctl->driver_command.status = 0;
|
|
tw_lock->time_remaining_msec = tw_lock->timeout_msec;
|
|
} else {
|
|
tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_LOCKED;
|
|
tw_lock->time_remaining_msec = tw_dev->ioctl_msec - current_time_ms;
|
|
}
|
|
break;
|
|
case TW_IOCTL_RELEASE_LOCK:
|
|
if (tw_dev->ioctl_sem_lock == 1) {
|
|
tw_dev->ioctl_sem_lock = 0;
|
|
tw_ioctl->driver_command.status = 0;
|
|
} else {
|
|
tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_NOT_LOCKED;
|
|
}
|
|
break;
|
|
default:
|
|
retval = TW_IOCTL_ERROR_OS_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:
|
|
mutex_unlock(&twa_chrdev_mutex);
|
|
return retval;
|
|
} /* End twa_chrdev_ioctl() */
|
|
|
|
/* This function handles open for the character device */
|
|
/* NOTE that this function will race with remove. */
|
|
static int twa_chrdev_open(struct inode *inode, struct file *file)
|
|
{
|
|
unsigned int minor_number;
|
|
int retval = TW_IOCTL_ERROR_OS_ENODEV;
|
|
|
|
minor_number = iminor(inode);
|
|
if (minor_number >= twa_device_extension_count)
|
|
goto out;
|
|
retval = 0;
|
|
out:
|
|
return retval;
|
|
} /* End twa_chrdev_open() */
|
|
|
|
/* This function will print readable messages from status register errors */
|
|
static int twa_decode_bits(TW_Device_Extension *tw_dev, u32 status_reg_value)
|
|
{
|
|
int retval = 1;
|
|
|
|
/* Check for various error conditions and handle them appropriately */
|
|
if (status_reg_value & TW_STATUS_PCI_PARITY_ERROR) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0xc, "PCI Parity Error: clearing");
|
|
writel(TW_CONTROL_CLEAR_PARITY_ERROR, TW_CONTROL_REG_ADDR(tw_dev));
|
|
}
|
|
|
|
if (status_reg_value & TW_STATUS_PCI_ABORT) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0xd, "PCI Abort: clearing");
|
|
writel(TW_CONTROL_CLEAR_PCI_ABORT, TW_CONTROL_REG_ADDR(tw_dev));
|
|
pci_write_config_word(tw_dev->tw_pci_dev, PCI_STATUS, TW_PCI_CLEAR_PCI_ABORT);
|
|
}
|
|
|
|
if (status_reg_value & TW_STATUS_QUEUE_ERROR) {
|
|
if (((tw_dev->tw_pci_dev->device != PCI_DEVICE_ID_3WARE_9650SE) &&
|
|
(tw_dev->tw_pci_dev->device != PCI_DEVICE_ID_3WARE_9690SA)) ||
|
|
(!test_bit(TW_IN_RESET, &tw_dev->flags)))
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0xe, "Controller Queue Error: clearing");
|
|
writel(TW_CONTROL_CLEAR_QUEUE_ERROR, TW_CONTROL_REG_ADDR(tw_dev));
|
|
}
|
|
|
|
if (status_reg_value & TW_STATUS_MICROCONTROLLER_ERROR) {
|
|
if (tw_dev->reset_print == 0) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x10, "Microcontroller Error: clearing");
|
|
tw_dev->reset_print = 1;
|
|
}
|
|
goto out;
|
|
}
|
|
retval = 0;
|
|
out:
|
|
return retval;
|
|
} /* End twa_decode_bits() */
|
|
|
|
/* This function will empty the response queue */
|
|
static int twa_empty_response_queue(TW_Device_Extension *tw_dev)
|
|
{
|
|
u32 status_reg_value, response_que_value;
|
|
int count = 0, retval = 1;
|
|
|
|
status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev));
|
|
|
|
while (((status_reg_value & TW_STATUS_RESPONSE_QUEUE_EMPTY) == 0) && (count < TW_MAX_RESPONSE_DRAIN)) {
|
|
response_que_value = readl(TW_RESPONSE_QUEUE_REG_ADDR(tw_dev));
|
|
status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev));
|
|
count++;
|
|
}
|
|
if (count == TW_MAX_RESPONSE_DRAIN)
|
|
goto out;
|
|
|
|
retval = 0;
|
|
out:
|
|
return retval;
|
|
} /* End twa_empty_response_queue() */
|
|
|
|
/* This function will clear the pchip/response queue on 9550SX */
|
|
static int twa_empty_response_queue_large(TW_Device_Extension *tw_dev)
|
|
{
|
|
u32 response_que_value = 0;
|
|
unsigned long before;
|
|
int retval = 1;
|
|
|
|
if (tw_dev->tw_pci_dev->device != PCI_DEVICE_ID_3WARE_9000) {
|
|
before = jiffies;
|
|
while ((response_que_value & TW_9550SX_DRAIN_COMPLETED) != TW_9550SX_DRAIN_COMPLETED) {
|
|
response_que_value = readl(TW_RESPONSE_QUEUE_REG_ADDR_LARGE(tw_dev));
|
|
msleep(1);
|
|
if (time_after(jiffies, before + HZ * 30))
|
|
goto out;
|
|
}
|
|
/* P-chip settle time */
|
|
msleep(500);
|
|
retval = 0;
|
|
} else
|
|
retval = 0;
|
|
out:
|
|
return retval;
|
|
} /* End twa_empty_response_queue_large() */
|
|
|
|
/* This function passes sense keys from firmware to scsi layer */
|
|
static int twa_fill_sense(TW_Device_Extension *tw_dev, int request_id, int copy_sense, int print_host)
|
|
{
|
|
TW_Command_Full *full_command_packet;
|
|
unsigned short error;
|
|
int retval = 1;
|
|
char *error_str;
|
|
|
|
full_command_packet = tw_dev->command_packet_virt[request_id];
|
|
|
|
/* Check for embedded error string */
|
|
error_str = &(full_command_packet->header.err_specific_desc[strlen(full_command_packet->header.err_specific_desc) + 1]);
|
|
|
|
/* Don't print error for Logical unit not supported during rollcall */
|
|
error = le16_to_cpu(full_command_packet->header.status_block.error);
|
|
if ((error != TW_ERROR_LOGICAL_UNIT_NOT_SUPPORTED) && (error != TW_ERROR_UNIT_OFFLINE)) {
|
|
if (print_host)
|
|
printk(KERN_WARNING "3w-9xxx: scsi%d: ERROR: (0x%02X:0x%04X): %s:%s.\n",
|
|
tw_dev->host->host_no,
|
|
TW_MESSAGE_SOURCE_CONTROLLER_ERROR,
|
|
full_command_packet->header.status_block.error,
|
|
error_str[0] == '\0' ?
|
|
twa_string_lookup(twa_error_table,
|
|
full_command_packet->header.status_block.error) : error_str,
|
|
full_command_packet->header.err_specific_desc);
|
|
else
|
|
printk(KERN_WARNING "3w-9xxx: ERROR: (0x%02X:0x%04X): %s:%s.\n",
|
|
TW_MESSAGE_SOURCE_CONTROLLER_ERROR,
|
|
full_command_packet->header.status_block.error,
|
|
error_str[0] == '\0' ?
|
|
twa_string_lookup(twa_error_table,
|
|
full_command_packet->header.status_block.error) : error_str,
|
|
full_command_packet->header.err_specific_desc);
|
|
}
|
|
|
|
if (copy_sense) {
|
|
memcpy(tw_dev->srb[request_id]->sense_buffer, full_command_packet->header.sense_data, TW_SENSE_DATA_LENGTH);
|
|
tw_dev->srb[request_id]->result = (full_command_packet->command.newcommand.status << 1);
|
|
retval = TW_ISR_DONT_RESULT;
|
|
goto out;
|
|
}
|
|
retval = 0;
|
|
out:
|
|
return retval;
|
|
} /* End twa_fill_sense() */
|
|
|
|
/* This function will free up device extension resources */
|
|
static void twa_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]);
|
|
|
|
kfree(tw_dev->event_queue[0]);
|
|
} /* End twa_free_device_extension() */
|
|
|
|
/* This function will free a request id */
|
|
static void twa_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 twa_free_request_id() */
|
|
|
|
/* This function will get parameter table entries from the firmware */
|
|
static void *twa_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 = cpu_to_le32(TW_SECTOR_SIZE);
|
|
|
|
/* Post the command packet to the board */
|
|
twa_post_command_packet(tw_dev, request_id, 1);
|
|
|
|
/* Poll for completion */
|
|
if (twa_poll_response(tw_dev, request_id, 30))
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x13, "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 twa_get_param() */
|
|
|
|
/* This function will assign an available request id */
|
|
static void twa_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 twa_get_request_id() */
|
|
|
|
/* This function will send an initconnection command to controller */
|
|
static int twa_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 */
|
|
twa_post_command_packet(tw_dev, request_id, 1);
|
|
|
|
/* Poll for completion */
|
|
if (twa_poll_response(tw_dev, request_id, 30)) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x15, "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 twa_initconnection() */
|
|
|
|
/* This function will initialize the fields of a device extension */
|
|
static int twa_initialize_device_extension(TW_Device_Extension *tw_dev)
|
|
{
|
|
int i, retval = 1;
|
|
|
|
/* Initialize command packet buffers */
|
|
if (twa_allocate_memory(tw_dev, sizeof(TW_Command_Full), 0)) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x16, "Command packet memory allocation failed");
|
|
goto out;
|
|
}
|
|
|
|
/* Initialize generic buffer */
|
|
if (twa_allocate_memory(tw_dev, TW_SECTOR_SIZE, 1)) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x17, "Generic memory 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, 0x18, "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->pending_head = TW_Q_START;
|
|
tw_dev->pending_tail = TW_Q_START;
|
|
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 twa_initialize_device_extension() */
|
|
|
|
/* This function is the interrupt service routine */
|
|
static irqreturn_t twa_interrupt(int irq, void *dev_instance)
|
|
{
|
|
int request_id, error = 0;
|
|
u32 status_reg_value;
|
|
TW_Response_Queue response_que;
|
|
TW_Command_Full *full_command_packet;
|
|
TW_Device_Extension *tw_dev = (TW_Device_Extension *)dev_instance;
|
|
int handled = 0;
|
|
|
|
/* Get the per adapter lock */
|
|
spin_lock(tw_dev->host->host_lock);
|
|
|
|
/* Read the registers */
|
|
status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev));
|
|
|
|
/* Check if this is our interrupt, otherwise bail */
|
|
if (!(status_reg_value & TW_STATUS_VALID_INTERRUPT))
|
|
goto twa_interrupt_bail;
|
|
|
|
handled = 1;
|
|
|
|
/* If we are resetting, bail */
|
|
if (test_bit(TW_IN_RESET, &tw_dev->flags))
|
|
goto twa_interrupt_bail;
|
|
|
|
/* Check controller for errors */
|
|
if (twa_check_bits(status_reg_value)) {
|
|
if (twa_decode_bits(tw_dev, status_reg_value)) {
|
|
TW_CLEAR_ALL_INTERRUPTS(tw_dev);
|
|
goto twa_interrupt_bail;
|
|
}
|
|
}
|
|
|
|
/* Handle host interrupt */
|
|
if (status_reg_value & TW_STATUS_HOST_INTERRUPT)
|
|
TW_CLEAR_HOST_INTERRUPT(tw_dev);
|
|
|
|
/* Handle attention interrupt */
|
|
if (status_reg_value & TW_STATUS_ATTENTION_INTERRUPT) {
|
|
TW_CLEAR_ATTENTION_INTERRUPT(tw_dev);
|
|
if (!(test_and_set_bit(TW_IN_ATTENTION_LOOP, &tw_dev->flags))) {
|
|
twa_get_request_id(tw_dev, &request_id);
|
|
|
|
error = twa_aen_read_queue(tw_dev, request_id);
|
|
if (error) {
|
|
tw_dev->state[request_id] = TW_S_COMPLETED;
|
|
twa_free_request_id(tw_dev, request_id);
|
|
clear_bit(TW_IN_ATTENTION_LOOP, &tw_dev->flags);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Handle command interrupt */
|
|
if (status_reg_value & TW_STATUS_COMMAND_INTERRUPT) {
|
|
TW_MASK_COMMAND_INTERRUPT(tw_dev);
|
|
/* Drain as many pending commands as we can */
|
|
while (tw_dev->pending_request_count > 0) {
|
|
request_id = tw_dev->pending_queue[tw_dev->pending_head];
|
|
if (tw_dev->state[request_id] != TW_S_PENDING) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x19, "Found request id that wasn't pending");
|
|
TW_CLEAR_ALL_INTERRUPTS(tw_dev);
|
|
goto twa_interrupt_bail;
|
|
}
|
|
if (twa_post_command_packet(tw_dev, request_id, 1)==0) {
|
|
tw_dev->pending_head = (tw_dev->pending_head + 1) % TW_Q_LENGTH;
|
|
tw_dev->pending_request_count--;
|
|
} else {
|
|
/* If we get here, we will continue re-posting on the next command interrupt */
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Handle response interrupt */
|
|
if (status_reg_value & TW_STATUS_RESPONSE_INTERRUPT) {
|
|
|
|
/* Drain the response queue from the board */
|
|
while ((status_reg_value & TW_STATUS_RESPONSE_QUEUE_EMPTY) == 0) {
|
|
/* Complete the response */
|
|
response_que.value = readl(TW_RESPONSE_QUEUE_REG_ADDR(tw_dev));
|
|
request_id = TW_RESID_OUT(response_que.response_id);
|
|
full_command_packet = tw_dev->command_packet_virt[request_id];
|
|
error = 0;
|
|
/* Check for command packet errors */
|
|
if (full_command_packet->command.newcommand.status != 0) {
|
|
if (tw_dev->srb[request_id] != NULL) {
|
|
error = twa_fill_sense(tw_dev, request_id, 1, 1);
|
|
} else {
|
|
/* Skip ioctl error prints */
|
|
if (request_id != tw_dev->chrdev_request_id) {
|
|
error = twa_fill_sense(tw_dev, request_id, 0, 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* 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, 0x1a, "Received a request id that wasn't posted");
|
|
TW_CLEAR_ALL_INTERRUPTS(tw_dev);
|
|
goto twa_interrupt_bail;
|
|
}
|
|
}
|
|
|
|
/* Check for internal command completion */
|
|
if (tw_dev->srb[request_id] == NULL) {
|
|
if (request_id != tw_dev->chrdev_request_id) {
|
|
if (twa_aen_complete(tw_dev, request_id))
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1b, "Error completing AEN during attention interrupt");
|
|
} else {
|
|
tw_dev->chrdev_request_id = TW_IOCTL_CHRDEV_FREE;
|
|
wake_up(&tw_dev->ioctl_wqueue);
|
|
}
|
|
} else {
|
|
struct scsi_cmnd *cmd;
|
|
|
|
cmd = tw_dev->srb[request_id];
|
|
|
|
twa_scsiop_execute_scsi_complete(tw_dev, request_id);
|
|
/* If no error command was a success */
|
|
if (error == 0) {
|
|
cmd->result = (DID_OK << 16);
|
|
}
|
|
|
|
/* If error, command failed */
|
|
if (error == 1) {
|
|
/* Ask for a host reset */
|
|
cmd->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
|
|
}
|
|
|
|
/* 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;
|
|
twa_free_request_id(tw_dev, request_id);
|
|
tw_dev->posted_request_count--;
|
|
tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]);
|
|
twa_unmap_scsi_data(tw_dev, request_id);
|
|
}
|
|
|
|
/* Check for valid status after each drain */
|
|
status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev));
|
|
if (twa_check_bits(status_reg_value)) {
|
|
if (twa_decode_bits(tw_dev, status_reg_value)) {
|
|
TW_CLEAR_ALL_INTERRUPTS(tw_dev);
|
|
goto twa_interrupt_bail;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
twa_interrupt_bail:
|
|
spin_unlock(tw_dev->host->host_lock);
|
|
return IRQ_RETVAL(handled);
|
|
} /* End twa_interrupt() */
|
|
|
|
/* This function will load the request id and various sgls for ioctls */
|
|
static void twa_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 *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 = cpu_to_le32(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 */
|
|
if (tw_dev->tw_pci_dev->device == PCI_DEVICE_ID_3WARE_9690SA)
|
|
sgl = (TW_SG_Entry *)((u32 *)oldcommand+oldcommand->size - (sizeof(TW_SG_Entry)/4) + pae);
|
|
else
|
|
sgl = (TW_SG_Entry *)((u32 *)oldcommand+TW_SGL_OUT(oldcommand->opcode__sgloffset));
|
|
sgl->address = TW_CPU_TO_SGL(dma_handle + sizeof(TW_Ioctl_Buf_Apache) - 1);
|
|
sgl->length = cpu_to_le32(length);
|
|
|
|
oldcommand->size += pae;
|
|
}
|
|
}
|
|
} /* End twa_load_sgl() */
|
|
|
|
/* This function will perform a pci-dma mapping for a scatter gather list */
|
|
static int twa_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, 0x1c, "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 twa_map_scsi_sg_data() */
|
|
|
|
/* This function will poll for a response interrupt of a request */
|
|
static int twa_poll_response(TW_Device_Extension *tw_dev, int request_id, int seconds)
|
|
{
|
|
int retval = 1, found = 0, response_request_id;
|
|
TW_Response_Queue response_queue;
|
|
TW_Command_Full *full_command_packet = tw_dev->command_packet_virt[request_id];
|
|
|
|
if (twa_poll_status_gone(tw_dev, TW_STATUS_RESPONSE_QUEUE_EMPTY, seconds) == 0) {
|
|
response_queue.value = readl(TW_RESPONSE_QUEUE_REG_ADDR(tw_dev));
|
|
response_request_id = TW_RESID_OUT(response_queue.response_id);
|
|
if (request_id != response_request_id) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1e, "Found unexpected request id while polling for response");
|
|
goto out;
|
|
}
|
|
if (TW_OP_OUT(full_command_packet->command.newcommand.opcode__reserved) == TW_OP_EXECUTE_SCSI) {
|
|
if (full_command_packet->command.newcommand.status != 0) {
|
|
/* bad response */
|
|
twa_fill_sense(tw_dev, request_id, 0, 0);
|
|
goto out;
|
|
}
|
|
found = 1;
|
|
} else {
|
|
if (full_command_packet->command.oldcommand.status != 0) {
|
|
/* bad response */
|
|
twa_fill_sense(tw_dev, request_id, 0, 0);
|
|
goto out;
|
|
}
|
|
found = 1;
|
|
}
|
|
}
|
|
|
|
if (found)
|
|
retval = 0;
|
|
out:
|
|
return retval;
|
|
} /* End twa_poll_response() */
|
|
|
|
/* This function will poll the status register for a flag */
|
|
static int twa_poll_status(TW_Device_Extension *tw_dev, u32 flag, int seconds)
|
|
{
|
|
u32 status_reg_value;
|
|
unsigned long before;
|
|
int retval = 1;
|
|
|
|
status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev));
|
|
before = jiffies;
|
|
|
|
if (twa_check_bits(status_reg_value))
|
|
twa_decode_bits(tw_dev, status_reg_value);
|
|
|
|
while ((status_reg_value & flag) != flag) {
|
|
status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev));
|
|
|
|
if (twa_check_bits(status_reg_value))
|
|
twa_decode_bits(tw_dev, status_reg_value);
|
|
|
|
if (time_after(jiffies, before + HZ * seconds))
|
|
goto out;
|
|
|
|
msleep(50);
|
|
}
|
|
retval = 0;
|
|
out:
|
|
return retval;
|
|
} /* End twa_poll_status() */
|
|
|
|
/* This function will poll the status register for disappearance of a flag */
|
|
static int twa_poll_status_gone(TW_Device_Extension *tw_dev, u32 flag, int seconds)
|
|
{
|
|
u32 status_reg_value;
|
|
unsigned long before;
|
|
int retval = 1;
|
|
|
|
status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev));
|
|
before = jiffies;
|
|
|
|
if (twa_check_bits(status_reg_value))
|
|
twa_decode_bits(tw_dev, status_reg_value);
|
|
|
|
while ((status_reg_value & flag) != 0) {
|
|
status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev));
|
|
if (twa_check_bits(status_reg_value))
|
|
twa_decode_bits(tw_dev, status_reg_value);
|
|
|
|
if (time_after(jiffies, before + HZ * seconds))
|
|
goto out;
|
|
|
|
msleep(50);
|
|
}
|
|
retval = 0;
|
|
out:
|
|
return retval;
|
|
} /* End twa_poll_status_gone() */
|
|
|
|
/* This function will attempt to post a command packet to the board */
|
|
static int twa_post_command_packet(TW_Device_Extension *tw_dev, int request_id, char internal)
|
|
{
|
|
u32 status_reg_value;
|
|
dma_addr_t command_que_value;
|
|
int retval = 1;
|
|
|
|
command_que_value = tw_dev->command_packet_phys[request_id];
|
|
|
|
/* For 9650SE write low 4 bytes first */
|
|
if ((tw_dev->tw_pci_dev->device == PCI_DEVICE_ID_3WARE_9650SE) ||
|
|
(tw_dev->tw_pci_dev->device == PCI_DEVICE_ID_3WARE_9690SA)) {
|
|
command_que_value += TW_COMMAND_OFFSET;
|
|
writel((u32)command_que_value, TW_COMMAND_QUEUE_REG_ADDR_LARGE(tw_dev));
|
|
}
|
|
|
|
status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev));
|
|
|
|
if (twa_check_bits(status_reg_value))
|
|
twa_decode_bits(tw_dev, status_reg_value);
|
|
|
|
if (((tw_dev->pending_request_count > 0) && (tw_dev->state[request_id] != TW_S_PENDING)) || (status_reg_value & TW_STATUS_COMMAND_QUEUE_FULL)) {
|
|
|
|
/* Only pend internal driver commands */
|
|
if (!internal) {
|
|
retval = SCSI_MLQUEUE_HOST_BUSY;
|
|
goto out;
|
|
}
|
|
|
|
/* Couldn't post the command packet, so we do it later */
|
|
if (tw_dev->state[request_id] != TW_S_PENDING) {
|
|
tw_dev->state[request_id] = TW_S_PENDING;
|
|
tw_dev->pending_request_count++;
|
|
if (tw_dev->pending_request_count > tw_dev->max_pending_request_count) {
|
|
tw_dev->max_pending_request_count = tw_dev->pending_request_count;
|
|
}
|
|
tw_dev->pending_queue[tw_dev->pending_tail] = request_id;
|
|
tw_dev->pending_tail = (tw_dev->pending_tail + 1) % TW_Q_LENGTH;
|
|
}
|
|
TW_UNMASK_COMMAND_INTERRUPT(tw_dev);
|
|
goto out;
|
|
} else {
|
|
if ((tw_dev->tw_pci_dev->device == PCI_DEVICE_ID_3WARE_9650SE) ||
|
|
(tw_dev->tw_pci_dev->device == PCI_DEVICE_ID_3WARE_9690SA)) {
|
|
/* Now write upper 4 bytes */
|
|
writel((u32)((u64)command_que_value >> 32), TW_COMMAND_QUEUE_REG_ADDR_LARGE(tw_dev) + 0x4);
|
|
} else {
|
|
if (sizeof(dma_addr_t) > 4) {
|
|
command_que_value += TW_COMMAND_OFFSET;
|
|
writel((u32)command_que_value, TW_COMMAND_QUEUE_REG_ADDR(tw_dev));
|
|
writel((u32)((u64)command_que_value >> 32), TW_COMMAND_QUEUE_REG_ADDR(tw_dev) + 0x4);
|
|
} else {
|
|
writel(TW_COMMAND_OFFSET + command_que_value, TW_COMMAND_QUEUE_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;
|
|
}
|
|
}
|
|
retval = 0;
|
|
out:
|
|
return retval;
|
|
} /* End twa_post_command_packet() */
|
|
|
|
/* This function will reset a device extension */
|
|
static int twa_reset_device_extension(TW_Device_Extension *tw_dev)
|
|
{
|
|
int i = 0;
|
|
int retval = 1;
|
|
unsigned long flags = 0;
|
|
|
|
set_bit(TW_IN_RESET, &tw_dev->flags);
|
|
TW_DISABLE_INTERRUPTS(tw_dev);
|
|
TW_MASK_COMMAND_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]);
|
|
twa_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;
|
|
tw_dev->pending_request_count = 0;
|
|
tw_dev->pending_head = TW_Q_START;
|
|
tw_dev->pending_tail = TW_Q_START;
|
|
tw_dev->reset_print = 0;
|
|
|
|
spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
|
|
|
|
if (twa_reset_sequence(tw_dev, 1))
|
|
goto out;
|
|
|
|
TW_ENABLE_AND_CLEAR_INTERRUPTS(tw_dev);
|
|
clear_bit(TW_IN_RESET, &tw_dev->flags);
|
|
tw_dev->chrdev_request_id = TW_IOCTL_CHRDEV_FREE;
|
|
|
|
retval = 0;
|
|
out:
|
|
return retval;
|
|
} /* End twa_reset_device_extension() */
|
|
|
|
/* This function will reset a controller */
|
|
static int twa_reset_sequence(TW_Device_Extension *tw_dev, int soft_reset)
|
|
{
|
|
int tries = 0, retval = 1, flashed = 0, do_soft_reset = soft_reset;
|
|
|
|
while (tries < TW_MAX_RESET_TRIES) {
|
|
if (do_soft_reset) {
|
|
TW_SOFT_RESET(tw_dev);
|
|
/* Clear pchip/response queue on 9550SX */
|
|
if (twa_empty_response_queue_large(tw_dev)) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x36, "Response queue (large) empty failed during reset sequence");
|
|
do_soft_reset = 1;
|
|
tries++;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
/* Make sure controller is in a good state */
|
|
if (twa_poll_status(tw_dev, TW_STATUS_MICROCONTROLLER_READY | (do_soft_reset == 1 ? TW_STATUS_ATTENTION_INTERRUPT : 0), 60)) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1f, "Microcontroller not ready during reset sequence");
|
|
do_soft_reset = 1;
|
|
tries++;
|
|
continue;
|
|
}
|
|
|
|
/* Empty response queue */
|
|
if (twa_empty_response_queue(tw_dev)) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x20, "Response queue empty failed during reset sequence");
|
|
do_soft_reset = 1;
|
|
tries++;
|
|
continue;
|
|
}
|
|
|
|
flashed = 0;
|
|
|
|
/* Check for compatibility/flash */
|
|
if (twa_check_srl(tw_dev, &flashed)) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x21, "Compatibility check failed during reset sequence");
|
|
do_soft_reset = 1;
|
|
tries++;
|
|
continue;
|
|
} else {
|
|
if (flashed) {
|
|
tries++;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
/* Drain the AEN queue */
|
|
if (twa_aen_drain_queue(tw_dev, soft_reset)) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x22, "AEN drain failed during reset sequence");
|
|
do_soft_reset = 1;
|
|
tries++;
|
|
continue;
|
|
}
|
|
|
|
/* If we got here, controller is in a good state */
|
|
retval = 0;
|
|
goto out;
|
|
}
|
|
out:
|
|
return retval;
|
|
} /* End twa_reset_sequence() */
|
|
|
|
/* This funciton returns unit geometry in cylinders/heads/sectors */
|
|
static int twa_scsi_biosparam(struct scsi_device *sdev, struct block_device *bdev, sector_t capacity, int geom[])
|
|
{
|
|
int heads, sectors, cylinders;
|
|
TW_Device_Extension *tw_dev;
|
|
|
|
tw_dev = (TW_Device_Extension *)sdev->host->hostdata;
|
|
|
|
if (capacity >= 0x200000) {
|
|
heads = 255;
|
|
sectors = 63;
|
|
cylinders = sector_div(capacity, heads * sectors);
|
|
} else {
|
|
heads = 64;
|
|
sectors = 32;
|
|
cylinders = sector_div(capacity, heads * sectors);
|
|
}
|
|
|
|
geom[0] = heads;
|
|
geom[1] = sectors;
|
|
geom[2] = cylinders;
|
|
|
|
return 0;
|
|
} /* End twa_scsi_biosparam() */
|
|
|
|
/* This is the new scsi eh reset function */
|
|
static int twa_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 (twa_reset_device_extension(tw_dev)) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x2b, "Controller reset failed during scsi host reset");
|
|
goto out;
|
|
}
|
|
|
|
retval = SUCCESS;
|
|
out:
|
|
mutex_unlock(&tw_dev->ioctl_lock);
|
|
return retval;
|
|
} /* End twa_scsi_eh_reset() */
|
|
|
|
/* This is the main scsi queue function to handle scsi opcodes */
|
|
static int twa_scsi_queue_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
|
|
{
|
|
int request_id, retval;
|
|
TW_Device_Extension *tw_dev = (TW_Device_Extension *)SCpnt->device->host->hostdata;
|
|
|
|
/* 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;
|
|
}
|
|
|
|
/* Check if this FW supports luns */
|
|
if ((SCpnt->device->lun != 0) && (tw_dev->tw_compat_info.working_srl < TW_FW_SRL_LUNS_SUPPORTED)) {
|
|
SCpnt->result = (DID_BAD_TARGET << 16);
|
|
done(SCpnt);
|
|
retval = 0;
|
|
goto out;
|
|
}
|
|
|
|
/* Save done function into scsi_cmnd struct */
|
|
SCpnt->scsi_done = done;
|
|
|
|
/* Get a free request id */
|
|
twa_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 = twa_scsiop_execute_scsi(tw_dev, request_id, NULL, 0, NULL);
|
|
switch (retval) {
|
|
case SCSI_MLQUEUE_HOST_BUSY:
|
|
twa_free_request_id(tw_dev, request_id);
|
|
twa_unmap_scsi_data(tw_dev, request_id);
|
|
break;
|
|
case 1:
|
|
tw_dev->state[request_id] = TW_S_COMPLETED;
|
|
twa_free_request_id(tw_dev, request_id);
|
|
twa_unmap_scsi_data(tw_dev, request_id);
|
|
SCpnt->result = (DID_ERROR << 16);
|
|
done(SCpnt);
|
|
retval = 0;
|
|
}
|
|
out:
|
|
return retval;
|
|
} /* End twa_scsi_queue() */
|
|
|
|
static DEF_SCSI_QCMD(twa_scsi_queue)
|
|
|
|
/* This function hands scsi cdb's to the firmware */
|
|
static int twa_scsiop_execute_scsi(TW_Device_Extension *tw_dev, int request_id, char *cdb, int use_sg, TW_SG_Entry *sglistarg)
|
|
{
|
|
TW_Command_Full *full_command_packet;
|
|
TW_Command_Apache *command_packet;
|
|
u32 num_sectors = 0x0;
|
|
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)) {
|
|
if ((scsi_sg_count(srb) == 1) &&
|
|
(scsi_bufflen(srb) < TW_MIN_SGL_LENGTH)) {
|
|
if (srb->sc_data_direction == DMA_TO_DEVICE ||
|
|
srb->sc_data_direction == DMA_BIDIRECTIONAL)
|
|
scsi_sg_copy_to_buffer(srb,
|
|
tw_dev->generic_buffer_virt[request_id],
|
|
TW_SECTOR_SIZE);
|
|
command_packet->sg_list[0].address = TW_CPU_TO_SGL(tw_dev->generic_buffer_phys[request_id]);
|
|
command_packet->sg_list[0].length = cpu_to_le32(TW_MIN_SGL_LENGTH);
|
|
} else {
|
|
sg_count = twa_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 = cpu_to_le32(sg_dma_len(sg));
|
|
if (command_packet->sg_list[i].address & TW_CPU_TO_SGL(TW_ALIGNMENT_9000_SGL)) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x2e, "Found unaligned sgl address during execute scsi");
|
|
goto out;
|
|
}
|
|
}
|
|
}
|
|
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 = cpu_to_le32(sglistarg[i].length);
|
|
if (command_packet->sg_list[i].address & TW_CPU_TO_SGL(TW_ALIGNMENT_9000_SGL)) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x2f, "Found unaligned sgl address during internal post");
|
|
goto out;
|
|
}
|
|
}
|
|
command_packet->sgl_entries__lunh = cpu_to_le16(TW_REQ_LUN_IN(0, use_sg));
|
|
}
|
|
|
|
if (srb) {
|
|
if (srb->cmnd[0] == READ_6 || srb->cmnd[0] == WRITE_6)
|
|
num_sectors = (u32)srb->cmnd[4];
|
|
|
|
if (srb->cmnd[0] == READ_10 || srb->cmnd[0] == WRITE_10)
|
|
num_sectors = (u32)srb->cmnd[8] | ((u32)srb->cmnd[7] << 8);
|
|
}
|
|
|
|
/* Update sector statistic */
|
|
tw_dev->sector_count = num_sectors;
|
|
if (tw_dev->sector_count > tw_dev->max_sector_count)
|
|
tw_dev->max_sector_count = tw_dev->sector_count;
|
|
|
|
/* Update SG statistics */
|
|
if (srb) {
|
|
tw_dev->sgl_entries = scsi_sg_count(tw_dev->srb[request_id]);
|
|
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 */
|
|
if (srb) {
|
|
retval = twa_post_command_packet(tw_dev, request_id, 0);
|
|
} else {
|
|
twa_post_command_packet(tw_dev, request_id, 1);
|
|
retval = 0;
|
|
}
|
|
out:
|
|
return retval;
|
|
} /* End twa_scsiop_execute_scsi() */
|
|
|
|
/* This function completes an execute scsi operation */
|
|
static void twa_scsiop_execute_scsi_complete(TW_Device_Extension *tw_dev, int request_id)
|
|
{
|
|
struct scsi_cmnd *cmd = tw_dev->srb[request_id];
|
|
|
|
if (scsi_bufflen(cmd) < TW_MIN_SGL_LENGTH &&
|
|
(cmd->sc_data_direction == DMA_FROM_DEVICE ||
|
|
cmd->sc_data_direction == DMA_BIDIRECTIONAL)) {
|
|
if (scsi_sg_count(cmd) == 1) {
|
|
void *buf = tw_dev->generic_buffer_virt[request_id];
|
|
|
|
scsi_sg_copy_from_buffer(cmd, buf, TW_SECTOR_SIZE);
|
|
}
|
|
}
|
|
} /* End twa_scsiop_execute_scsi_complete() */
|
|
|
|
/* This function tells the controller to shut down */
|
|
static void __twa_shutdown(TW_Device_Extension *tw_dev)
|
|
{
|
|
/* Disable interrupts */
|
|
TW_DISABLE_INTERRUPTS(tw_dev);
|
|
|
|
/* Free up the IRQ */
|
|
free_irq(tw_dev->tw_pci_dev->irq, tw_dev);
|
|
|
|
printk(KERN_WARNING "3w-9xxx: Shutting down host %d.\n", tw_dev->host->host_no);
|
|
|
|
/* Tell the card we are shutting down */
|
|
if (twa_initconnection(tw_dev, 1, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL)) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x31, "Connection shutdown failed");
|
|
} else {
|
|
printk(KERN_WARNING "3w-9xxx: Shutdown complete.\n");
|
|
}
|
|
|
|
/* Clear all interrupts just before exit */
|
|
TW_CLEAR_ALL_INTERRUPTS(tw_dev);
|
|
} /* End __twa_shutdown() */
|
|
|
|
/* Wrapper for __twa_shutdown */
|
|
static void twa_shutdown(struct pci_dev *pdev)
|
|
{
|
|
struct Scsi_Host *host = pci_get_drvdata(pdev);
|
|
TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
|
|
|
|
__twa_shutdown(tw_dev);
|
|
} /* End twa_shutdown() */
|
|
|
|
/* This function will look up a string */
|
|
static char *twa_string_lookup(twa_message_type *table, unsigned int code)
|
|
{
|
|
int index;
|
|
|
|
for (index = 0; ((code != table[index].code) &&
|
|
(table[index].text != (char *)0)); index++);
|
|
return(table[index].text);
|
|
} /* End twa_string_lookup() */
|
|
|
|
/* This function will perform a pci-dma unmap */
|
|
static void twa_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 twa_unmap_scsi_data() */
|
|
|
|
/* This function gets called when a disk is coming on-line */
|
|
static int twa_slave_configure(struct scsi_device *sdev)
|
|
{
|
|
/* Force 60 second timeout */
|
|
blk_queue_rq_timeout(sdev->request_queue, 60 * HZ);
|
|
|
|
return 0;
|
|
} /* End twa_slave_configure() */
|
|
|
|
/* scsi_host_template initializer */
|
|
static struct scsi_host_template driver_template = {
|
|
.module = THIS_MODULE,
|
|
.name = "3ware 9000 Storage Controller",
|
|
.queuecommand = twa_scsi_queue,
|
|
.eh_host_reset_handler = twa_scsi_eh_reset,
|
|
.bios_param = twa_scsi_biosparam,
|
|
.change_queue_depth = twa_change_queue_depth,
|
|
.can_queue = TW_Q_LENGTH-2,
|
|
.slave_configure = twa_slave_configure,
|
|
.this_id = -1,
|
|
.sg_tablesize = TW_APACHE_MAX_SGL_LENGTH,
|
|
.max_sectors = TW_MAX_SECTORS,
|
|
.cmd_per_lun = TW_MAX_CMDS_PER_LUN,
|
|
.use_clustering = ENABLE_CLUSTERING,
|
|
.shost_attrs = twa_host_attrs,
|
|
.emulated = 1
|
|
};
|
|
|
|
/* This function will probe and initialize a card */
|
|
static int twa_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
|
|
{
|
|
struct Scsi_Host *host = NULL;
|
|
TW_Device_Extension *tw_dev;
|
|
unsigned long mem_addr, mem_len;
|
|
int retval = -ENODEV;
|
|
|
|
retval = pci_enable_device(pdev);
|
|
if (retval) {
|
|
TW_PRINTK(host, TW_DRIVER, 0x34, "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, 0x23, "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, 0x24, "Failed to allocate memory for device extension");
|
|
retval = -ENOMEM;
|
|
goto out_disable_device;
|
|
}
|
|
tw_dev = (TW_Device_Extension *)host->hostdata;
|
|
|
|
/* Save values to device extension */
|
|
tw_dev->host = host;
|
|
tw_dev->tw_pci_dev = pdev;
|
|
|
|
if (twa_initialize_device_extension(tw_dev)) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x25, "Failed to initialize device extension");
|
|
goto out_free_device_extension;
|
|
}
|
|
|
|
/* Request IO regions */
|
|
retval = pci_request_regions(pdev, "3w-9xxx");
|
|
if (retval) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x26, "Failed to get mem region");
|
|
goto out_free_device_extension;
|
|
}
|
|
|
|
if (pdev->device == PCI_DEVICE_ID_3WARE_9000) {
|
|
mem_addr = pci_resource_start(pdev, 1);
|
|
mem_len = pci_resource_len(pdev, 1);
|
|
} else {
|
|
mem_addr = pci_resource_start(pdev, 2);
|
|
mem_len = pci_resource_len(pdev, 2);
|
|
}
|
|
|
|
/* Save base address */
|
|
tw_dev->base_addr = ioremap(mem_addr, mem_len);
|
|
if (!tw_dev->base_addr) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x35, "Failed to ioremap");
|
|
goto out_release_mem_region;
|
|
}
|
|
|
|
/* Disable interrupts on the card */
|
|
TW_DISABLE_INTERRUPTS(tw_dev);
|
|
|
|
/* Initialize the card */
|
|
if (twa_reset_sequence(tw_dev, 0))
|
|
goto out_iounmap;
|
|
|
|
/* Set host specific parameters */
|
|
if ((pdev->device == PCI_DEVICE_ID_3WARE_9650SE) ||
|
|
(pdev->device == PCI_DEVICE_ID_3WARE_9690SA))
|
|
host->max_id = TW_MAX_UNITS_9650SE;
|
|
else
|
|
host->max_id = TW_MAX_UNITS;
|
|
|
|
host->max_cmd_len = TW_MAX_CDB_LEN;
|
|
|
|
/* Channels aren't supported by adapter */
|
|
host->max_lun = TW_MAX_LUNS(tw_dev->tw_compat_info.working_srl);
|
|
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, 0x27, "scsi add host failed");
|
|
goto out_iounmap;
|
|
}
|
|
|
|
pci_set_drvdata(pdev, host);
|
|
|
|
printk(KERN_WARNING "3w-9xxx: scsi%d: Found a 3ware 9000 Storage Controller at 0x%lx, IRQ: %d.\n",
|
|
host->host_no, mem_addr, pdev->irq);
|
|
printk(KERN_WARNING "3w-9xxx: scsi%d: Firmware %s, BIOS %s, Ports: %d.\n",
|
|
host->host_no,
|
|
(char *)twa_get_param(tw_dev, 0, TW_VERSION_TABLE,
|
|
TW_PARAM_FWVER, TW_PARAM_FWVER_LENGTH),
|
|
(char *)twa_get_param(tw_dev, 1, TW_VERSION_TABLE,
|
|
TW_PARAM_BIOSVER, TW_PARAM_BIOSVER_LENGTH),
|
|
le32_to_cpu(*(int *)twa_get_param(tw_dev, 2, TW_INFORMATION_TABLE,
|
|
TW_PARAM_PORTCOUNT, TW_PARAM_PORTCOUNT_LENGTH)));
|
|
|
|
/* Try to enable MSI */
|
|
if (use_msi && (pdev->device != PCI_DEVICE_ID_3WARE_9000) &&
|
|
!pci_enable_msi(pdev))
|
|
set_bit(TW_USING_MSI, &tw_dev->flags);
|
|
|
|
/* Now setup the interrupt handler */
|
|
retval = request_irq(pdev->irq, twa_interrupt, IRQF_SHARED, "3w-9xxx", tw_dev);
|
|
if (retval) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x30, "Error requesting IRQ");
|
|
goto out_remove_host;
|
|
}
|
|
|
|
twa_device_extension_list[twa_device_extension_count] = tw_dev;
|
|
twa_device_extension_count++;
|
|
|
|
/* Re-enable interrupts on the card */
|
|
TW_ENABLE_AND_CLEAR_INTERRUPTS(tw_dev);
|
|
|
|
/* Finally, scan the host */
|
|
scsi_scan_host(host);
|
|
|
|
if (twa_major == -1) {
|
|
if ((twa_major = register_chrdev (0, "twa", &twa_fops)) < 0)
|
|
TW_PRINTK(host, TW_DRIVER, 0x29, "Failed to register character device");
|
|
}
|
|
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:
|
|
twa_free_device_extension(tw_dev);
|
|
scsi_host_put(host);
|
|
out_disable_device:
|
|
pci_disable_device(pdev);
|
|
|
|
return retval;
|
|
} /* End twa_probe() */
|
|
|
|
/* This function is called to remove a device */
|
|
static void twa_remove(struct pci_dev *pdev)
|
|
{
|
|
struct Scsi_Host *host = pci_get_drvdata(pdev);
|
|
TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
|
|
|
|
scsi_remove_host(tw_dev->host);
|
|
|
|
/* Unregister character device */
|
|
if (twa_major >= 0) {
|
|
unregister_chrdev(twa_major, "twa");
|
|
twa_major = -1;
|
|
}
|
|
|
|
/* Shutdown the card */
|
|
__twa_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 */
|
|
twa_free_device_extension(tw_dev);
|
|
|
|
scsi_host_put(tw_dev->host);
|
|
pci_disable_device(pdev);
|
|
twa_device_extension_count--;
|
|
} /* End twa_remove() */
|
|
|
|
#ifdef CONFIG_PM
|
|
/* This function is called on PCI suspend */
|
|
static int twa_suspend(struct pci_dev *pdev, pm_message_t state)
|
|
{
|
|
struct Scsi_Host *host = pci_get_drvdata(pdev);
|
|
TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
|
|
|
|
printk(KERN_WARNING "3w-9xxx: Suspending host %d.\n", tw_dev->host->host_no);
|
|
|
|
TW_DISABLE_INTERRUPTS(tw_dev);
|
|
free_irq(tw_dev->tw_pci_dev->irq, tw_dev);
|
|
|
|
if (test_bit(TW_USING_MSI, &tw_dev->flags))
|
|
pci_disable_msi(pdev);
|
|
|
|
/* Tell the card we are shutting down */
|
|
if (twa_initconnection(tw_dev, 1, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL)) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x38, "Connection shutdown failed during suspend");
|
|
} else {
|
|
printk(KERN_WARNING "3w-9xxx: Suspend complete.\n");
|
|
}
|
|
TW_CLEAR_ALL_INTERRUPTS(tw_dev);
|
|
|
|
pci_save_state(pdev);
|
|
pci_disable_device(pdev);
|
|
pci_set_power_state(pdev, pci_choose_state(pdev, state));
|
|
|
|
return 0;
|
|
} /* End twa_suspend() */
|
|
|
|
/* This function is called on PCI resume */
|
|
static int twa_resume(struct pci_dev *pdev)
|
|
{
|
|
int retval = 0;
|
|
struct Scsi_Host *host = pci_get_drvdata(pdev);
|
|
TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
|
|
|
|
printk(KERN_WARNING "3w-9xxx: Resuming host %d.\n", tw_dev->host->host_no);
|
|
pci_set_power_state(pdev, PCI_D0);
|
|
pci_enable_wake(pdev, PCI_D0, 0);
|
|
pci_restore_state(pdev);
|
|
|
|
retval = pci_enable_device(pdev);
|
|
if (retval) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x39, "Enable device failed during resume");
|
|
return retval;
|
|
}
|
|
|
|
pci_set_master(pdev);
|
|
pci_try_set_mwi(pdev);
|
|
|
|
if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64))
|
|
|| pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
|
|
if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
|
|
|| pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
|
|
TW_PRINTK(host, TW_DRIVER, 0x40, "Failed to set dma mask during resume");
|
|
retval = -ENODEV;
|
|
goto out_disable_device;
|
|
}
|
|
|
|
/* Initialize the card */
|
|
if (twa_reset_sequence(tw_dev, 0)) {
|
|
retval = -ENODEV;
|
|
goto out_disable_device;
|
|
}
|
|
|
|
/* Now setup the interrupt handler */
|
|
retval = request_irq(pdev->irq, twa_interrupt, IRQF_SHARED, "3w-9xxx", tw_dev);
|
|
if (retval) {
|
|
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x42, "Error requesting IRQ during resume");
|
|
retval = -ENODEV;
|
|
goto out_disable_device;
|
|
}
|
|
|
|
/* Now enable MSI if enabled */
|
|
if (test_bit(TW_USING_MSI, &tw_dev->flags))
|
|
pci_enable_msi(pdev);
|
|
|
|
/* Re-enable interrupts on the card */
|
|
TW_ENABLE_AND_CLEAR_INTERRUPTS(tw_dev);
|
|
|
|
printk(KERN_WARNING "3w-9xxx: Resume complete.\n");
|
|
return 0;
|
|
|
|
out_disable_device:
|
|
scsi_remove_host(host);
|
|
pci_disable_device(pdev);
|
|
|
|
return retval;
|
|
} /* End twa_resume() */
|
|
#endif
|
|
|
|
/* PCI Devices supported by this driver */
|
|
static struct pci_device_id twa_pci_tbl[] = {
|
|
{ PCI_VENDOR_ID_3WARE, PCI_DEVICE_ID_3WARE_9000,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
|
|
{ PCI_VENDOR_ID_3WARE, PCI_DEVICE_ID_3WARE_9550SX,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
|
|
{ PCI_VENDOR_ID_3WARE, PCI_DEVICE_ID_3WARE_9650SE,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
|
|
{ PCI_VENDOR_ID_3WARE, PCI_DEVICE_ID_3WARE_9690SA,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(pci, twa_pci_tbl);
|
|
|
|
/* pci_driver initializer */
|
|
static struct pci_driver twa_driver = {
|
|
.name = "3w-9xxx",
|
|
.id_table = twa_pci_tbl,
|
|
.probe = twa_probe,
|
|
.remove = twa_remove,
|
|
#ifdef CONFIG_PM
|
|
.suspend = twa_suspend,
|
|
.resume = twa_resume,
|
|
#endif
|
|
.shutdown = twa_shutdown
|
|
};
|
|
|
|
/* This function is called on driver initialization */
|
|
static int __init twa_init(void)
|
|
{
|
|
printk(KERN_WARNING "3ware 9000 Storage Controller device driver for Linux v%s.\n", TW_DRIVER_VERSION);
|
|
|
|
return pci_register_driver(&twa_driver);
|
|
} /* End twa_init() */
|
|
|
|
/* This function is called on driver exit */
|
|
static void __exit twa_exit(void)
|
|
{
|
|
pci_unregister_driver(&twa_driver);
|
|
} /* End twa_exit() */
|
|
|
|
module_init(twa_init);
|
|
module_exit(twa_exit);
|
|
|