![Ed Lin](/assets/img/avatar_default.png)
Update version to 3.1.0.1 Signed-off-by: Ed Lin <ed.lin@promise.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
1424 lines
34 KiB
C
1424 lines
34 KiB
C
/*
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* SuperTrak EX Series Storage Controller driver for Linux
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*
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* Copyright (C) 2005, 2006 Promise Technology Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*
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* Written By:
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* Ed Lin <promise_linux@promise.com>
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*
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*/
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#include <linux/init.h>
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#include <linux/errno.h>
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#include <linux/kernel.h>
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#include <linux/delay.h>
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#include <linux/sched.h>
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#include <linux/time.h>
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#include <linux/pci.h>
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#include <linux/blkdev.h>
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#include <linux/interrupt.h>
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#include <linux/types.h>
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#include <linux/module.h>
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#include <linux/spinlock.h>
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#include <asm/io.h>
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#include <asm/irq.h>
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#include <asm/byteorder.h>
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#include <scsi/scsi.h>
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#include <scsi/scsi_device.h>
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#include <scsi/scsi_cmnd.h>
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#include <scsi/scsi_host.h>
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#include <scsi/scsi_tcq.h>
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#define DRV_NAME "stex"
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#define ST_DRIVER_VERSION "3.1.0.1"
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#define ST_VER_MAJOR 3
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#define ST_VER_MINOR 1
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#define ST_OEM 0
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#define ST_BUILD_VER 1
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enum {
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/* MU register offset */
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IMR0 = 0x10, /* MU_INBOUND_MESSAGE_REG0 */
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IMR1 = 0x14, /* MU_INBOUND_MESSAGE_REG1 */
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OMR0 = 0x18, /* MU_OUTBOUND_MESSAGE_REG0 */
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OMR1 = 0x1c, /* MU_OUTBOUND_MESSAGE_REG1 */
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IDBL = 0x20, /* MU_INBOUND_DOORBELL */
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IIS = 0x24, /* MU_INBOUND_INTERRUPT_STATUS */
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IIM = 0x28, /* MU_INBOUND_INTERRUPT_MASK */
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ODBL = 0x2c, /* MU_OUTBOUND_DOORBELL */
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OIS = 0x30, /* MU_OUTBOUND_INTERRUPT_STATUS */
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OIM = 0x3c, /* MU_OUTBOUND_INTERRUPT_MASK */
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/* MU register value */
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MU_INBOUND_DOORBELL_HANDSHAKE = 1,
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MU_INBOUND_DOORBELL_REQHEADCHANGED = 2,
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MU_INBOUND_DOORBELL_STATUSTAILCHANGED = 4,
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MU_INBOUND_DOORBELL_HMUSTOPPED = 8,
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MU_INBOUND_DOORBELL_RESET = 16,
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MU_OUTBOUND_DOORBELL_HANDSHAKE = 1,
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MU_OUTBOUND_DOORBELL_REQUESTTAILCHANGED = 2,
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MU_OUTBOUND_DOORBELL_STATUSHEADCHANGED = 4,
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MU_OUTBOUND_DOORBELL_BUSCHANGE = 8,
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MU_OUTBOUND_DOORBELL_HASEVENT = 16,
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/* MU status code */
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MU_STATE_STARTING = 1,
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MU_STATE_FMU_READY_FOR_HANDSHAKE = 2,
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MU_STATE_SEND_HANDSHAKE_FRAME = 3,
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MU_STATE_STARTED = 4,
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MU_STATE_RESETTING = 5,
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MU_MAX_DELAY = 120,
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MU_HANDSHAKE_SIGNATURE = 0x55aaaa55,
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MU_HANDSHAKE_SIGNATURE_HALF = 0x5a5a0000,
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MU_HARD_RESET_WAIT = 30000,
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HMU_PARTNER_TYPE = 2,
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/* firmware returned values */
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SRB_STATUS_SUCCESS = 0x01,
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SRB_STATUS_ERROR = 0x04,
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SRB_STATUS_BUSY = 0x05,
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SRB_STATUS_INVALID_REQUEST = 0x06,
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SRB_STATUS_SELECTION_TIMEOUT = 0x0A,
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SRB_SEE_SENSE = 0x80,
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/* task attribute */
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TASK_ATTRIBUTE_SIMPLE = 0x0,
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TASK_ATTRIBUTE_HEADOFQUEUE = 0x1,
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TASK_ATTRIBUTE_ORDERED = 0x2,
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TASK_ATTRIBUTE_ACA = 0x4,
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/* request count, etc. */
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MU_MAX_REQUEST = 32,
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/* one message wasted, use MU_MAX_REQUEST+1
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to handle MU_MAX_REQUEST messages */
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MU_REQ_COUNT = (MU_MAX_REQUEST + 1),
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MU_STATUS_COUNT = (MU_MAX_REQUEST + 1),
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STEX_CDB_LENGTH = MAX_COMMAND_SIZE,
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REQ_VARIABLE_LEN = 1024,
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STATUS_VAR_LEN = 128,
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ST_CAN_QUEUE = MU_MAX_REQUEST,
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ST_CMD_PER_LUN = MU_MAX_REQUEST,
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ST_MAX_SG = 32,
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/* sg flags */
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SG_CF_EOT = 0x80, /* end of table */
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SG_CF_64B = 0x40, /* 64 bit item */
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SG_CF_HOST = 0x20, /* sg in host memory */
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ST_MAX_ARRAY_SUPPORTED = 16,
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ST_MAX_TARGET_NUM = (ST_MAX_ARRAY_SUPPORTED+1),
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ST_MAX_LUN_PER_TARGET = 16,
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st_shasta = 0,
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st_vsc = 1,
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st_vsc1 = 2,
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st_yosemite = 3,
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PASSTHRU_REQ_TYPE = 0x00000001,
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PASSTHRU_REQ_NO_WAKEUP = 0x00000100,
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ST_INTERNAL_TIMEOUT = 30,
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ST_TO_CMD = 0,
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ST_FROM_CMD = 1,
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/* vendor specific commands of Promise */
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MGT_CMD = 0xd8,
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SINBAND_MGT_CMD = 0xd9,
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ARRAY_CMD = 0xe0,
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CONTROLLER_CMD = 0xe1,
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DEBUGGING_CMD = 0xe2,
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PASSTHRU_CMD = 0xe3,
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PASSTHRU_GET_ADAPTER = 0x05,
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PASSTHRU_GET_DRVVER = 0x10,
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CTLR_CONFIG_CMD = 0x03,
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CTLR_SHUTDOWN = 0x0d,
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CTLR_POWER_STATE_CHANGE = 0x0e,
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CTLR_POWER_SAVING = 0x01,
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PASSTHRU_SIGNATURE = 0x4e415041,
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MGT_CMD_SIGNATURE = 0xba,
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INQUIRY_EVPD = 0x01,
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ST_ADDITIONAL_MEM = 0x200000,
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};
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/* SCSI inquiry data */
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typedef struct st_inq {
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u8 DeviceType :5;
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u8 DeviceTypeQualifier :3;
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u8 DeviceTypeModifier :7;
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u8 RemovableMedia :1;
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u8 Versions;
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u8 ResponseDataFormat :4;
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u8 HiSupport :1;
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u8 NormACA :1;
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u8 ReservedBit :1;
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u8 AERC :1;
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u8 AdditionalLength;
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u8 Reserved[2];
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u8 SoftReset :1;
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u8 CommandQueue :1;
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u8 Reserved2 :1;
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u8 LinkedCommands :1;
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u8 Synchronous :1;
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u8 Wide16Bit :1;
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u8 Wide32Bit :1;
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u8 RelativeAddressing :1;
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u8 VendorId[8];
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u8 ProductId[16];
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u8 ProductRevisionLevel[4];
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u8 VendorSpecific[20];
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u8 Reserved3[40];
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} ST_INQ;
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struct st_sgitem {
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u8 ctrl; /* SG_CF_xxx */
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u8 reserved[3];
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__le32 count;
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__le32 addr;
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__le32 addr_hi;
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};
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struct st_sgtable {
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__le16 sg_count;
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__le16 max_sg_count;
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__le32 sz_in_byte;
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struct st_sgitem table[ST_MAX_SG];
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};
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struct handshake_frame {
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__le32 rb_phy; /* request payload queue physical address */
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__le32 rb_phy_hi;
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__le16 req_sz; /* size of each request payload */
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__le16 req_cnt; /* count of reqs the buffer can hold */
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__le16 status_sz; /* size of each status payload */
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__le16 status_cnt; /* count of status the buffer can hold */
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__le32 hosttime; /* seconds from Jan 1, 1970 (GMT) */
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__le32 hosttime_hi;
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u8 partner_type; /* who sends this frame */
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u8 reserved0[7];
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__le32 partner_ver_major;
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__le32 partner_ver_minor;
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__le32 partner_ver_oem;
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__le32 partner_ver_build;
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__le32 extra_offset; /* NEW */
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__le32 extra_size; /* NEW */
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u32 reserved1[2];
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};
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struct req_msg {
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__le16 tag;
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u8 lun;
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u8 target;
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u8 task_attr;
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u8 task_manage;
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u8 prd_entry;
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u8 payload_sz; /* payload size in 4-byte, not used */
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u8 cdb[STEX_CDB_LENGTH];
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u8 variable[REQ_VARIABLE_LEN];
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};
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struct status_msg {
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__le16 tag;
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u8 lun;
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u8 target;
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u8 srb_status;
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u8 scsi_status;
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u8 reserved;
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u8 payload_sz; /* payload size in 4-byte */
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u8 variable[STATUS_VAR_LEN];
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};
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struct ver_info {
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u32 major;
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u32 minor;
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u32 oem;
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u32 build;
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u32 reserved[2];
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};
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struct st_frame {
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u32 base[6];
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u32 rom_addr;
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struct ver_info drv_ver;
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struct ver_info bios_ver;
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u32 bus;
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u32 slot;
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u32 irq_level;
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u32 irq_vec;
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u32 id;
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u32 subid;
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u32 dimm_size;
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u8 dimm_type;
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u8 reserved[3];
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u32 channel;
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u32 reserved1;
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};
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struct st_drvver {
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u32 major;
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u32 minor;
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u32 oem;
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u32 build;
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u32 signature[2];
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u8 console_id;
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u8 host_no;
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u8 reserved0[2];
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u32 reserved[3];
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};
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#define MU_REQ_BUFFER_SIZE (MU_REQ_COUNT * sizeof(struct req_msg))
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#define MU_STATUS_BUFFER_SIZE (MU_STATUS_COUNT * sizeof(struct status_msg))
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#define MU_BUFFER_SIZE (MU_REQ_BUFFER_SIZE + MU_STATUS_BUFFER_SIZE)
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#define STEX_EXTRA_SIZE max(sizeof(struct st_frame), sizeof(ST_INQ))
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#define STEX_BUFFER_SIZE (MU_BUFFER_SIZE + STEX_EXTRA_SIZE)
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struct st_ccb {
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struct req_msg *req;
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struct scsi_cmnd *cmd;
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void *sense_buffer;
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unsigned int sense_bufflen;
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int sg_count;
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u32 req_type;
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u8 srb_status;
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u8 scsi_status;
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};
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struct st_hba {
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void __iomem *mmio_base; /* iomapped PCI memory space */
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void *dma_mem;
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dma_addr_t dma_handle;
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size_t dma_size;
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struct Scsi_Host *host;
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struct pci_dev *pdev;
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u32 req_head;
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u32 req_tail;
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u32 status_head;
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u32 status_tail;
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struct status_msg *status_buffer;
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void *copy_buffer; /* temp buffer for driver-handled commands */
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struct st_ccb ccb[MU_MAX_REQUEST];
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struct st_ccb *wait_ccb;
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wait_queue_head_t waitq;
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unsigned int mu_status;
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int out_req_cnt;
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unsigned int cardtype;
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};
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static const char console_inq_page[] =
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{
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0x03,0x00,0x03,0x03,0xFA,0x00,0x00,0x30,
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0x50,0x72,0x6F,0x6D,0x69,0x73,0x65,0x20, /* "Promise " */
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0x52,0x41,0x49,0x44,0x20,0x43,0x6F,0x6E, /* "RAID Con" */
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0x73,0x6F,0x6C,0x65,0x20,0x20,0x20,0x20, /* "sole " */
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0x31,0x2E,0x30,0x30,0x20,0x20,0x20,0x20, /* "1.00 " */
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0x53,0x58,0x2F,0x52,0x53,0x41,0x46,0x2D, /* "SX/RSAF-" */
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0x54,0x45,0x31,0x2E,0x30,0x30,0x20,0x20, /* "TE1.00 " */
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0x0C,0x20,0x20,0x20,0x20,0x20,0x20,0x20
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};
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MODULE_AUTHOR("Ed Lin");
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MODULE_DESCRIPTION("Promise Technology SuperTrak EX Controllers");
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MODULE_LICENSE("GPL");
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MODULE_VERSION(ST_DRIVER_VERSION);
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static void stex_gettime(__le32 *time)
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{
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struct timeval tv;
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do_gettimeofday(&tv);
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*time = cpu_to_le32(tv.tv_sec & 0xffffffff);
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*(time + 1) = cpu_to_le32((tv.tv_sec >> 16) >> 16);
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}
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static struct status_msg *stex_get_status(struct st_hba *hba)
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{
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struct status_msg *status =
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hba->status_buffer + hba->status_tail;
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++hba->status_tail;
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hba->status_tail %= MU_STATUS_COUNT;
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return status;
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}
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static void stex_set_sense(struct scsi_cmnd *cmd, u8 sk, u8 asc, u8 ascq)
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{
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cmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
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cmd->sense_buffer[0] = 0x70; /* fixed format, current */
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cmd->sense_buffer[2] = sk;
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cmd->sense_buffer[7] = 18 - 8; /* additional sense length */
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cmd->sense_buffer[12] = asc;
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cmd->sense_buffer[13] = ascq;
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}
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static void stex_invalid_field(struct scsi_cmnd *cmd,
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void (*done)(struct scsi_cmnd *))
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{
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/* "Invalid field in cbd" */
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stex_set_sense(cmd, ILLEGAL_REQUEST, 0x24, 0x0);
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done(cmd);
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}
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static struct req_msg *stex_alloc_req(struct st_hba *hba)
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{
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struct req_msg *req = ((struct req_msg *)hba->dma_mem) +
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hba->req_head;
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++hba->req_head;
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hba->req_head %= MU_REQ_COUNT;
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return req;
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}
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static int stex_map_sg(struct st_hba *hba,
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struct req_msg *req, struct st_ccb *ccb)
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{
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struct pci_dev *pdev = hba->pdev;
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struct scsi_cmnd *cmd;
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dma_addr_t dma_handle;
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struct scatterlist *src;
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struct st_sgtable *dst;
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int i;
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cmd = ccb->cmd;
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dst = (struct st_sgtable *)req->variable;
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dst->max_sg_count = cpu_to_le16(ST_MAX_SG);
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dst->sz_in_byte = cpu_to_le32(cmd->request_bufflen);
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if (cmd->use_sg) {
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int n_elem;
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src = (struct scatterlist *) cmd->request_buffer;
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n_elem = pci_map_sg(pdev, src,
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cmd->use_sg, cmd->sc_data_direction);
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if (n_elem <= 0)
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return -EIO;
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ccb->sg_count = n_elem;
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dst->sg_count = cpu_to_le16((u16)n_elem);
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for (i = 0; i < n_elem; i++, src++) {
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dst->table[i].count = cpu_to_le32((u32)sg_dma_len(src));
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dst->table[i].addr =
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cpu_to_le32(sg_dma_address(src) & 0xffffffff);
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dst->table[i].addr_hi =
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cpu_to_le32((sg_dma_address(src) >> 16) >> 16);
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dst->table[i].ctrl = SG_CF_64B | SG_CF_HOST;
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}
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dst->table[--i].ctrl |= SG_CF_EOT;
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return 0;
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}
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dma_handle = pci_map_single(pdev, cmd->request_buffer,
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cmd->request_bufflen, cmd->sc_data_direction);
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cmd->SCp.dma_handle = dma_handle;
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ccb->sg_count = 1;
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dst->sg_count = cpu_to_le16(1);
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dst->table[0].addr = cpu_to_le32(dma_handle & 0xffffffff);
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dst->table[0].addr_hi = cpu_to_le32((dma_handle >> 16) >> 16);
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dst->table[0].count = cpu_to_le32((u32)cmd->request_bufflen);
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dst->table[0].ctrl = SG_CF_EOT | SG_CF_64B | SG_CF_HOST;
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return 0;
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}
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static void stex_internal_copy(struct scsi_cmnd *cmd,
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const void *src, size_t *count, int sg_count, int direction)
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{
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size_t lcount;
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size_t len;
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void *s, *d, *base = NULL;
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if (*count > cmd->request_bufflen)
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*count = cmd->request_bufflen;
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lcount = *count;
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while (lcount) {
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len = lcount;
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s = (void *)src;
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if (cmd->use_sg) {
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size_t offset = *count - lcount;
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s += offset;
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base = scsi_kmap_atomic_sg(cmd->request_buffer,
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sg_count, &offset, &len);
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if (base == NULL) {
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*count -= lcount;
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return;
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}
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d = base + offset;
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} else
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d = cmd->request_buffer;
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if (direction == ST_TO_CMD)
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memcpy(d, s, len);
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else
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memcpy(s, d, len);
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lcount -= len;
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if (cmd->use_sg)
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scsi_kunmap_atomic_sg(base);
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}
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}
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static int stex_direct_copy(struct scsi_cmnd *cmd,
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const void *src, size_t count)
|
|
{
|
|
struct st_hba *hba = (struct st_hba *) &cmd->device->host->hostdata[0];
|
|
size_t cp_len = count;
|
|
int n_elem = 0;
|
|
|
|
if (cmd->use_sg) {
|
|
n_elem = pci_map_sg(hba->pdev, cmd->request_buffer,
|
|
cmd->use_sg, cmd->sc_data_direction);
|
|
if (n_elem <= 0)
|
|
return 0;
|
|
}
|
|
|
|
stex_internal_copy(cmd, src, &cp_len, n_elem, ST_TO_CMD);
|
|
|
|
if (cmd->use_sg)
|
|
pci_unmap_sg(hba->pdev, cmd->request_buffer,
|
|
cmd->use_sg, cmd->sc_data_direction);
|
|
return cp_len == count;
|
|
}
|
|
|
|
static void stex_controller_info(struct st_hba *hba, struct st_ccb *ccb)
|
|
{
|
|
struct st_frame *p;
|
|
size_t count = sizeof(struct st_frame);
|
|
|
|
p = hba->copy_buffer;
|
|
stex_internal_copy(ccb->cmd, p, &count, ccb->sg_count, ST_FROM_CMD);
|
|
memset(p->base, 0, sizeof(u32)*6);
|
|
*(unsigned long *)(p->base) = pci_resource_start(hba->pdev, 0);
|
|
p->rom_addr = 0;
|
|
|
|
p->drv_ver.major = ST_VER_MAJOR;
|
|
p->drv_ver.minor = ST_VER_MINOR;
|
|
p->drv_ver.oem = ST_OEM;
|
|
p->drv_ver.build = ST_BUILD_VER;
|
|
|
|
p->bus = hba->pdev->bus->number;
|
|
p->slot = hba->pdev->devfn;
|
|
p->irq_level = 0;
|
|
p->irq_vec = hba->pdev->irq;
|
|
p->id = hba->pdev->vendor << 16 | hba->pdev->device;
|
|
p->subid =
|
|
hba->pdev->subsystem_vendor << 16 | hba->pdev->subsystem_device;
|
|
|
|
stex_internal_copy(ccb->cmd, p, &count, ccb->sg_count, ST_TO_CMD);
|
|
}
|
|
|
|
static void
|
|
stex_send_cmd(struct st_hba *hba, struct req_msg *req, u16 tag)
|
|
{
|
|
req->tag = cpu_to_le16(tag);
|
|
req->task_attr = TASK_ATTRIBUTE_SIMPLE;
|
|
req->task_manage = 0; /* not supported yet */
|
|
|
|
hba->ccb[tag].req = req;
|
|
hba->out_req_cnt++;
|
|
|
|
writel(hba->req_head, hba->mmio_base + IMR0);
|
|
writel(MU_INBOUND_DOORBELL_REQHEADCHANGED, hba->mmio_base + IDBL);
|
|
readl(hba->mmio_base + IDBL); /* flush */
|
|
}
|
|
|
|
static int
|
|
stex_slave_alloc(struct scsi_device *sdev)
|
|
{
|
|
/* Cheat: usually extracted from Inquiry data */
|
|
sdev->tagged_supported = 1;
|
|
|
|
scsi_activate_tcq(sdev, sdev->host->can_queue);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
stex_slave_config(struct scsi_device *sdev)
|
|
{
|
|
sdev->use_10_for_rw = 1;
|
|
sdev->use_10_for_ms = 1;
|
|
sdev->timeout = 60 * HZ;
|
|
sdev->tagged_supported = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
stex_slave_destroy(struct scsi_device *sdev)
|
|
{
|
|
scsi_deactivate_tcq(sdev, 1);
|
|
}
|
|
|
|
static int
|
|
stex_queuecommand(struct scsi_cmnd *cmd, void (* done)(struct scsi_cmnd *))
|
|
{
|
|
struct st_hba *hba;
|
|
struct Scsi_Host *host;
|
|
unsigned int id,lun;
|
|
struct req_msg *req;
|
|
u16 tag;
|
|
host = cmd->device->host;
|
|
id = cmd->device->id;
|
|
lun = cmd->device->channel; /* firmware lun issue work around */
|
|
hba = (struct st_hba *) &host->hostdata[0];
|
|
|
|
switch (cmd->cmnd[0]) {
|
|
case MODE_SENSE_10:
|
|
{
|
|
static char ms10_caching_page[12] =
|
|
{ 0, 0x12, 0, 0, 0, 0, 0, 0, 0x8, 0xa, 0x4, 0 };
|
|
unsigned char page;
|
|
page = cmd->cmnd[2] & 0x3f;
|
|
if (page == 0x8 || page == 0x3f) {
|
|
stex_direct_copy(cmd, ms10_caching_page,
|
|
sizeof(ms10_caching_page));
|
|
cmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
|
|
done(cmd);
|
|
} else
|
|
stex_invalid_field(cmd, done);
|
|
return 0;
|
|
}
|
|
case INQUIRY:
|
|
if (id != ST_MAX_ARRAY_SUPPORTED)
|
|
break;
|
|
if (lun == 0 && (cmd->cmnd[1] & INQUIRY_EVPD) == 0) {
|
|
stex_direct_copy(cmd, console_inq_page,
|
|
sizeof(console_inq_page));
|
|
cmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
|
|
done(cmd);
|
|
} else
|
|
stex_invalid_field(cmd, done);
|
|
return 0;
|
|
case PASSTHRU_CMD:
|
|
if (cmd->cmnd[1] == PASSTHRU_GET_DRVVER) {
|
|
struct st_drvver ver;
|
|
ver.major = ST_VER_MAJOR;
|
|
ver.minor = ST_VER_MINOR;
|
|
ver.oem = ST_OEM;
|
|
ver.build = ST_BUILD_VER;
|
|
ver.signature[0] = PASSTHRU_SIGNATURE;
|
|
ver.console_id = ST_MAX_ARRAY_SUPPORTED;
|
|
ver.host_no = hba->host->host_no;
|
|
cmd->result = stex_direct_copy(cmd, &ver, sizeof(ver)) ?
|
|
DID_OK << 16 | COMMAND_COMPLETE << 8 :
|
|
DID_ERROR << 16 | COMMAND_COMPLETE << 8;
|
|
done(cmd);
|
|
return 0;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
cmd->scsi_done = done;
|
|
|
|
tag = cmd->request->tag;
|
|
|
|
if (unlikely(tag >= host->can_queue))
|
|
return SCSI_MLQUEUE_HOST_BUSY;
|
|
|
|
req = stex_alloc_req(hba);
|
|
|
|
if (hba->cardtype == st_yosemite) {
|
|
req->lun = lun * (ST_MAX_TARGET_NUM - 1) + id;
|
|
req->target = 0;
|
|
} else {
|
|
req->lun = lun;
|
|
req->target = id;
|
|
}
|
|
|
|
/* cdb */
|
|
memcpy(req->cdb, cmd->cmnd, STEX_CDB_LENGTH);
|
|
|
|
hba->ccb[tag].cmd = cmd;
|
|
hba->ccb[tag].sense_bufflen = SCSI_SENSE_BUFFERSIZE;
|
|
hba->ccb[tag].sense_buffer = cmd->sense_buffer;
|
|
hba->ccb[tag].req_type = 0;
|
|
|
|
if (cmd->sc_data_direction != DMA_NONE)
|
|
stex_map_sg(hba, req, &hba->ccb[tag]);
|
|
|
|
stex_send_cmd(hba, req, tag);
|
|
return 0;
|
|
}
|
|
|
|
static void stex_unmap_sg(struct st_hba *hba, struct scsi_cmnd *cmd)
|
|
{
|
|
if (cmd->sc_data_direction != DMA_NONE) {
|
|
if (cmd->use_sg)
|
|
pci_unmap_sg(hba->pdev, cmd->request_buffer,
|
|
cmd->use_sg, cmd->sc_data_direction);
|
|
else
|
|
pci_unmap_single(hba->pdev, cmd->SCp.dma_handle,
|
|
cmd->request_bufflen, cmd->sc_data_direction);
|
|
}
|
|
}
|
|
|
|
static void stex_scsi_done(struct st_ccb *ccb)
|
|
{
|
|
struct scsi_cmnd *cmd = ccb->cmd;
|
|
int result;
|
|
|
|
if (ccb->srb_status == SRB_STATUS_SUCCESS || ccb->srb_status == 0) {
|
|
result = ccb->scsi_status;
|
|
switch (ccb->scsi_status) {
|
|
case SAM_STAT_GOOD:
|
|
result |= DID_OK << 16 | COMMAND_COMPLETE << 8;
|
|
break;
|
|
case SAM_STAT_CHECK_CONDITION:
|
|
result |= DRIVER_SENSE << 24;
|
|
break;
|
|
case SAM_STAT_BUSY:
|
|
result |= DID_BUS_BUSY << 16 | COMMAND_COMPLETE << 8;
|
|
break;
|
|
default:
|
|
result |= DID_ERROR << 16 | COMMAND_COMPLETE << 8;
|
|
break;
|
|
}
|
|
}
|
|
else if (ccb->srb_status & SRB_SEE_SENSE)
|
|
result = DRIVER_SENSE << 24 | SAM_STAT_CHECK_CONDITION;
|
|
else switch (ccb->srb_status) {
|
|
case SRB_STATUS_SELECTION_TIMEOUT:
|
|
result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
|
|
break;
|
|
case SRB_STATUS_BUSY:
|
|
result = DID_BUS_BUSY << 16 | COMMAND_COMPLETE << 8;
|
|
break;
|
|
case SRB_STATUS_INVALID_REQUEST:
|
|
case SRB_STATUS_ERROR:
|
|
default:
|
|
result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
|
|
break;
|
|
}
|
|
|
|
cmd->result = result;
|
|
cmd->scsi_done(cmd);
|
|
}
|
|
|
|
static void stex_copy_data(struct st_ccb *ccb,
|
|
struct status_msg *resp, unsigned int variable)
|
|
{
|
|
size_t count = variable;
|
|
if (resp->scsi_status != SAM_STAT_GOOD) {
|
|
if (ccb->sense_buffer != NULL)
|
|
memcpy(ccb->sense_buffer, resp->variable,
|
|
min(variable, ccb->sense_bufflen));
|
|
return;
|
|
}
|
|
|
|
if (ccb->cmd == NULL)
|
|
return;
|
|
stex_internal_copy(ccb->cmd,
|
|
resp->variable, &count, ccb->sg_count, ST_TO_CMD);
|
|
}
|
|
|
|
static void stex_ys_commands(struct st_hba *hba,
|
|
struct st_ccb *ccb, struct status_msg *resp)
|
|
{
|
|
size_t count;
|
|
|
|
if (ccb->cmd->cmnd[0] == MGT_CMD &&
|
|
resp->scsi_status != SAM_STAT_CHECK_CONDITION) {
|
|
ccb->cmd->request_bufflen =
|
|
le32_to_cpu(*(__le32 *)&resp->variable[0]);
|
|
return;
|
|
}
|
|
|
|
if (resp->srb_status != 0)
|
|
return;
|
|
|
|
/* determine inquiry command status by DeviceTypeQualifier */
|
|
if (ccb->cmd->cmnd[0] == INQUIRY &&
|
|
resp->scsi_status == SAM_STAT_GOOD) {
|
|
ST_INQ *inq_data;
|
|
|
|
count = STEX_EXTRA_SIZE;
|
|
stex_internal_copy(ccb->cmd, hba->copy_buffer,
|
|
&count, ccb->sg_count, ST_FROM_CMD);
|
|
inq_data = (ST_INQ *)hba->copy_buffer;
|
|
if (inq_data->DeviceTypeQualifier != 0)
|
|
ccb->srb_status = SRB_STATUS_SELECTION_TIMEOUT;
|
|
else
|
|
ccb->srb_status = SRB_STATUS_SUCCESS;
|
|
} else if (ccb->cmd->cmnd[0] == REPORT_LUNS) {
|
|
u8 *report_lun_data = (u8 *)hba->copy_buffer;
|
|
|
|
count = STEX_EXTRA_SIZE;
|
|
stex_internal_copy(ccb->cmd, report_lun_data,
|
|
&count, ccb->sg_count, ST_FROM_CMD);
|
|
if (report_lun_data[2] || report_lun_data[3]) {
|
|
report_lun_data[2] = 0x00;
|
|
report_lun_data[3] = 0x08;
|
|
stex_internal_copy(ccb->cmd, report_lun_data,
|
|
&count, ccb->sg_count, ST_TO_CMD);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void stex_mu_intr(struct st_hba *hba, u32 doorbell)
|
|
{
|
|
void __iomem *base = hba->mmio_base;
|
|
struct status_msg *resp;
|
|
struct st_ccb *ccb;
|
|
unsigned int size;
|
|
u16 tag;
|
|
|
|
if (!(doorbell & MU_OUTBOUND_DOORBELL_STATUSHEADCHANGED))
|
|
return;
|
|
|
|
/* status payloads */
|
|
hba->status_head = readl(base + OMR1);
|
|
if (unlikely(hba->status_head >= MU_STATUS_COUNT)) {
|
|
printk(KERN_WARNING DRV_NAME "(%s): invalid status head\n",
|
|
pci_name(hba->pdev));
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* it's not a valid status payload if:
|
|
* 1. there are no pending requests(e.g. during init stage)
|
|
* 2. there are some pending requests, but the controller is in
|
|
* reset status, and its type is not st_yosemite
|
|
* firmware of st_yosemite in reset status will return pending requests
|
|
* to driver, so we allow it to pass
|
|
*/
|
|
if (unlikely(hba->out_req_cnt <= 0 ||
|
|
(hba->mu_status == MU_STATE_RESETTING &&
|
|
hba->cardtype != st_yosemite))) {
|
|
hba->status_tail = hba->status_head;
|
|
goto update_status;
|
|
}
|
|
|
|
while (hba->status_tail != hba->status_head) {
|
|
resp = stex_get_status(hba);
|
|
tag = le16_to_cpu(resp->tag);
|
|
if (unlikely(tag >= hba->host->can_queue)) {
|
|
printk(KERN_WARNING DRV_NAME
|
|
"(%s): invalid tag\n", pci_name(hba->pdev));
|
|
continue;
|
|
}
|
|
|
|
ccb = &hba->ccb[tag];
|
|
if (hba->wait_ccb == ccb)
|
|
hba->wait_ccb = NULL;
|
|
if (unlikely(ccb->req == NULL)) {
|
|
printk(KERN_WARNING DRV_NAME
|
|
"(%s): lagging req\n", pci_name(hba->pdev));
|
|
hba->out_req_cnt--;
|
|
continue;
|
|
}
|
|
|
|
size = resp->payload_sz * sizeof(u32); /* payload size */
|
|
if (unlikely(size < sizeof(*resp) - STATUS_VAR_LEN ||
|
|
size > sizeof(*resp))) {
|
|
printk(KERN_WARNING DRV_NAME "(%s): bad status size\n",
|
|
pci_name(hba->pdev));
|
|
} else {
|
|
size -= sizeof(*resp) - STATUS_VAR_LEN; /* copy size */
|
|
if (size)
|
|
stex_copy_data(ccb, resp, size);
|
|
}
|
|
|
|
ccb->srb_status = resp->srb_status;
|
|
ccb->scsi_status = resp->scsi_status;
|
|
|
|
if (likely(ccb->cmd != NULL)) {
|
|
if (hba->cardtype == st_yosemite)
|
|
stex_ys_commands(hba, ccb, resp);
|
|
|
|
if (unlikely(ccb->cmd->cmnd[0] == PASSTHRU_CMD &&
|
|
ccb->cmd->cmnd[1] == PASSTHRU_GET_ADAPTER))
|
|
stex_controller_info(hba, ccb);
|
|
|
|
stex_unmap_sg(hba, ccb->cmd);
|
|
stex_scsi_done(ccb);
|
|
hba->out_req_cnt--;
|
|
} else if (ccb->req_type & PASSTHRU_REQ_TYPE) {
|
|
hba->out_req_cnt--;
|
|
if (ccb->req_type & PASSTHRU_REQ_NO_WAKEUP) {
|
|
ccb->req_type = 0;
|
|
continue;
|
|
}
|
|
ccb->req_type = 0;
|
|
if (waitqueue_active(&hba->waitq))
|
|
wake_up(&hba->waitq);
|
|
}
|
|
}
|
|
|
|
update_status:
|
|
writel(hba->status_head, base + IMR1);
|
|
readl(base + IMR1); /* flush */
|
|
}
|
|
|
|
static irqreturn_t stex_intr(int irq, void *__hba)
|
|
{
|
|
struct st_hba *hba = __hba;
|
|
void __iomem *base = hba->mmio_base;
|
|
u32 data;
|
|
unsigned long flags;
|
|
int handled = 0;
|
|
|
|
spin_lock_irqsave(hba->host->host_lock, flags);
|
|
|
|
data = readl(base + ODBL);
|
|
|
|
if (data && data != 0xffffffff) {
|
|
/* clear the interrupt */
|
|
writel(data, base + ODBL);
|
|
readl(base + ODBL); /* flush */
|
|
stex_mu_intr(hba, data);
|
|
handled = 1;
|
|
}
|
|
|
|
spin_unlock_irqrestore(hba->host->host_lock, flags);
|
|
|
|
return IRQ_RETVAL(handled);
|
|
}
|
|
|
|
static int stex_handshake(struct st_hba *hba)
|
|
{
|
|
void __iomem *base = hba->mmio_base;
|
|
struct handshake_frame *h;
|
|
dma_addr_t status_phys;
|
|
u32 data;
|
|
unsigned long before;
|
|
|
|
if (readl(base + OMR0) != MU_HANDSHAKE_SIGNATURE) {
|
|
writel(MU_INBOUND_DOORBELL_HANDSHAKE, base + IDBL);
|
|
readl(base + IDBL);
|
|
before = jiffies;
|
|
while (readl(base + OMR0) != MU_HANDSHAKE_SIGNATURE) {
|
|
if (time_after(jiffies, before + MU_MAX_DELAY * HZ)) {
|
|
printk(KERN_ERR DRV_NAME
|
|
"(%s): no handshake signature\n",
|
|
pci_name(hba->pdev));
|
|
return -1;
|
|
}
|
|
rmb();
|
|
msleep(1);
|
|
}
|
|
}
|
|
|
|
udelay(10);
|
|
|
|
data = readl(base + OMR1);
|
|
if ((data & 0xffff0000) == MU_HANDSHAKE_SIGNATURE_HALF) {
|
|
data &= 0x0000ffff;
|
|
if (hba->host->can_queue > data)
|
|
hba->host->can_queue = data;
|
|
}
|
|
|
|
h = (struct handshake_frame *)(hba->dma_mem + MU_REQ_BUFFER_SIZE);
|
|
h->rb_phy = cpu_to_le32(hba->dma_handle);
|
|
h->rb_phy_hi = cpu_to_le32((hba->dma_handle >> 16) >> 16);
|
|
h->req_sz = cpu_to_le16(sizeof(struct req_msg));
|
|
h->req_cnt = cpu_to_le16(MU_REQ_COUNT);
|
|
h->status_sz = cpu_to_le16(sizeof(struct status_msg));
|
|
h->status_cnt = cpu_to_le16(MU_STATUS_COUNT);
|
|
stex_gettime(&h->hosttime);
|
|
h->partner_type = HMU_PARTNER_TYPE;
|
|
if (hba->dma_size > STEX_BUFFER_SIZE) {
|
|
h->extra_offset = cpu_to_le32(STEX_BUFFER_SIZE);
|
|
h->extra_size = cpu_to_le32(ST_ADDITIONAL_MEM);
|
|
} else
|
|
h->extra_offset = h->extra_size = 0;
|
|
|
|
status_phys = hba->dma_handle + MU_REQ_BUFFER_SIZE;
|
|
writel(status_phys, base + IMR0);
|
|
readl(base + IMR0);
|
|
writel((status_phys >> 16) >> 16, base + IMR1);
|
|
readl(base + IMR1);
|
|
|
|
writel((status_phys >> 16) >> 16, base + OMR0); /* old fw compatible */
|
|
readl(base + OMR0);
|
|
writel(MU_INBOUND_DOORBELL_HANDSHAKE, base + IDBL);
|
|
readl(base + IDBL); /* flush */
|
|
|
|
udelay(10);
|
|
before = jiffies;
|
|
while (readl(base + OMR0) != MU_HANDSHAKE_SIGNATURE) {
|
|
if (time_after(jiffies, before + MU_MAX_DELAY * HZ)) {
|
|
printk(KERN_ERR DRV_NAME
|
|
"(%s): no signature after handshake frame\n",
|
|
pci_name(hba->pdev));
|
|
return -1;
|
|
}
|
|
rmb();
|
|
msleep(1);
|
|
}
|
|
|
|
writel(0, base + IMR0);
|
|
readl(base + IMR0);
|
|
writel(0, base + OMR0);
|
|
readl(base + OMR0);
|
|
writel(0, base + IMR1);
|
|
readl(base + IMR1);
|
|
writel(0, base + OMR1);
|
|
readl(base + OMR1); /* flush */
|
|
hba->mu_status = MU_STATE_STARTED;
|
|
return 0;
|
|
}
|
|
|
|
static int stex_abort(struct scsi_cmnd *cmd)
|
|
{
|
|
struct Scsi_Host *host = cmd->device->host;
|
|
struct st_hba *hba = (struct st_hba *)host->hostdata;
|
|
u16 tag = cmd->request->tag;
|
|
void __iomem *base;
|
|
u32 data;
|
|
int result = SUCCESS;
|
|
unsigned long flags;
|
|
base = hba->mmio_base;
|
|
spin_lock_irqsave(host->host_lock, flags);
|
|
if (tag < host->can_queue && hba->ccb[tag].cmd == cmd)
|
|
hba->wait_ccb = &hba->ccb[tag];
|
|
else {
|
|
for (tag = 0; tag < host->can_queue; tag++)
|
|
if (hba->ccb[tag].cmd == cmd) {
|
|
hba->wait_ccb = &hba->ccb[tag];
|
|
break;
|
|
}
|
|
if (tag >= host->can_queue)
|
|
goto out;
|
|
}
|
|
|
|
data = readl(base + ODBL);
|
|
if (data == 0 || data == 0xffffffff)
|
|
goto fail_out;
|
|
|
|
writel(data, base + ODBL);
|
|
readl(base + ODBL); /* flush */
|
|
|
|
stex_mu_intr(hba, data);
|
|
|
|
if (hba->wait_ccb == NULL) {
|
|
printk(KERN_WARNING DRV_NAME
|
|
"(%s): lost interrupt\n", pci_name(hba->pdev));
|
|
goto out;
|
|
}
|
|
|
|
fail_out:
|
|
stex_unmap_sg(hba, cmd);
|
|
hba->wait_ccb->req = NULL; /* nullify the req's future return */
|
|
hba->wait_ccb = NULL;
|
|
result = FAILED;
|
|
out:
|
|
spin_unlock_irqrestore(host->host_lock, flags);
|
|
return result;
|
|
}
|
|
|
|
static void stex_hard_reset(struct st_hba *hba)
|
|
{
|
|
struct pci_bus *bus;
|
|
int i;
|
|
u16 pci_cmd;
|
|
u8 pci_bctl;
|
|
|
|
for (i = 0; i < 16; i++)
|
|
pci_read_config_dword(hba->pdev, i * 4,
|
|
&hba->pdev->saved_config_space[i]);
|
|
|
|
/* Reset secondary bus. Our controller(MU/ATU) is the only device on
|
|
secondary bus. Consult Intel 80331/3 developer's manual for detail */
|
|
bus = hba->pdev->bus;
|
|
pci_read_config_byte(bus->self, PCI_BRIDGE_CONTROL, &pci_bctl);
|
|
pci_bctl |= PCI_BRIDGE_CTL_BUS_RESET;
|
|
pci_write_config_byte(bus->self, PCI_BRIDGE_CONTROL, pci_bctl);
|
|
msleep(1);
|
|
pci_bctl &= ~PCI_BRIDGE_CTL_BUS_RESET;
|
|
pci_write_config_byte(bus->self, PCI_BRIDGE_CONTROL, pci_bctl);
|
|
|
|
for (i = 0; i < MU_HARD_RESET_WAIT; i++) {
|
|
pci_read_config_word(hba->pdev, PCI_COMMAND, &pci_cmd);
|
|
if (pci_cmd != 0xffff && (pci_cmd & PCI_COMMAND_MASTER))
|
|
break;
|
|
msleep(1);
|
|
}
|
|
|
|
ssleep(5);
|
|
for (i = 0; i < 16; i++)
|
|
pci_write_config_dword(hba->pdev, i * 4,
|
|
hba->pdev->saved_config_space[i]);
|
|
}
|
|
|
|
static int stex_reset(struct scsi_cmnd *cmd)
|
|
{
|
|
struct st_hba *hba;
|
|
unsigned long flags;
|
|
unsigned long before;
|
|
hba = (struct st_hba *) &cmd->device->host->hostdata[0];
|
|
|
|
hba->mu_status = MU_STATE_RESETTING;
|
|
|
|
if (hba->cardtype == st_shasta)
|
|
stex_hard_reset(hba);
|
|
|
|
if (hba->cardtype != st_yosemite) {
|
|
if (stex_handshake(hba)) {
|
|
printk(KERN_WARNING DRV_NAME
|
|
"(%s): resetting: handshake failed\n",
|
|
pci_name(hba->pdev));
|
|
return FAILED;
|
|
}
|
|
spin_lock_irqsave(hba->host->host_lock, flags);
|
|
hba->req_head = 0;
|
|
hba->req_tail = 0;
|
|
hba->status_head = 0;
|
|
hba->status_tail = 0;
|
|
hba->out_req_cnt = 0;
|
|
spin_unlock_irqrestore(hba->host->host_lock, flags);
|
|
return SUCCESS;
|
|
}
|
|
|
|
/* st_yosemite */
|
|
writel(MU_INBOUND_DOORBELL_RESET, hba->mmio_base + IDBL);
|
|
readl(hba->mmio_base + IDBL); /* flush */
|
|
before = jiffies;
|
|
while (hba->out_req_cnt > 0) {
|
|
if (time_after(jiffies, before + ST_INTERNAL_TIMEOUT * HZ)) {
|
|
printk(KERN_WARNING DRV_NAME
|
|
"(%s): reset timeout\n", pci_name(hba->pdev));
|
|
return FAILED;
|
|
}
|
|
msleep(1);
|
|
}
|
|
|
|
hba->mu_status = MU_STATE_STARTED;
|
|
return SUCCESS;
|
|
}
|
|
|
|
static int stex_biosparam(struct scsi_device *sdev,
|
|
struct block_device *bdev, sector_t capacity, int geom[])
|
|
{
|
|
int heads = 255, sectors = 63;
|
|
|
|
if (capacity < 0x200000) {
|
|
heads = 64;
|
|
sectors = 32;
|
|
}
|
|
|
|
sector_div(capacity, heads * sectors);
|
|
|
|
geom[0] = heads;
|
|
geom[1] = sectors;
|
|
geom[2] = capacity;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct scsi_host_template driver_template = {
|
|
.module = THIS_MODULE,
|
|
.name = DRV_NAME,
|
|
.proc_name = DRV_NAME,
|
|
.bios_param = stex_biosparam,
|
|
.queuecommand = stex_queuecommand,
|
|
.slave_alloc = stex_slave_alloc,
|
|
.slave_configure = stex_slave_config,
|
|
.slave_destroy = stex_slave_destroy,
|
|
.eh_abort_handler = stex_abort,
|
|
.eh_host_reset_handler = stex_reset,
|
|
.can_queue = ST_CAN_QUEUE,
|
|
.this_id = -1,
|
|
.sg_tablesize = ST_MAX_SG,
|
|
.cmd_per_lun = ST_CMD_PER_LUN,
|
|
};
|
|
|
|
static int stex_set_dma_mask(struct pci_dev * pdev)
|
|
{
|
|
int ret;
|
|
if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)
|
|
&& !pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK))
|
|
return 0;
|
|
ret = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
|
|
if (!ret)
|
|
ret = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
|
|
return ret;
|
|
}
|
|
|
|
static int __devinit
|
|
stex_probe(struct pci_dev *pdev, const struct pci_device_id *id)
|
|
{
|
|
struct st_hba *hba;
|
|
struct Scsi_Host *host;
|
|
int err;
|
|
|
|
err = pci_enable_device(pdev);
|
|
if (err)
|
|
return err;
|
|
|
|
pci_set_master(pdev);
|
|
|
|
host = scsi_host_alloc(&driver_template, sizeof(struct st_hba));
|
|
|
|
if (!host) {
|
|
printk(KERN_ERR DRV_NAME "(%s): scsi_host_alloc failed\n",
|
|
pci_name(pdev));
|
|
err = -ENOMEM;
|
|
goto out_disable;
|
|
}
|
|
|
|
hba = (struct st_hba *)host->hostdata;
|
|
memset(hba, 0, sizeof(struct st_hba));
|
|
|
|
err = pci_request_regions(pdev, DRV_NAME);
|
|
if (err < 0) {
|
|
printk(KERN_ERR DRV_NAME "(%s): request regions failed\n",
|
|
pci_name(pdev));
|
|
goto out_scsi_host_put;
|
|
}
|
|
|
|
hba->mmio_base = ioremap(pci_resource_start(pdev, 0),
|
|
pci_resource_len(pdev, 0));
|
|
if ( !hba->mmio_base) {
|
|
printk(KERN_ERR DRV_NAME "(%s): memory map failed\n",
|
|
pci_name(pdev));
|
|
err = -ENOMEM;
|
|
goto out_release_regions;
|
|
}
|
|
|
|
err = stex_set_dma_mask(pdev);
|
|
if (err) {
|
|
printk(KERN_ERR DRV_NAME "(%s): set dma mask failed\n",
|
|
pci_name(pdev));
|
|
goto out_iounmap;
|
|
}
|
|
|
|
hba->cardtype = (unsigned int) id->driver_data;
|
|
if (hba->cardtype == st_vsc && (pdev->subsystem_device & 0xf) == 0x1)
|
|
hba->cardtype = st_vsc1;
|
|
hba->dma_size = (hba->cardtype == st_vsc1) ?
|
|
(STEX_BUFFER_SIZE + ST_ADDITIONAL_MEM) : (STEX_BUFFER_SIZE);
|
|
hba->dma_mem = dma_alloc_coherent(&pdev->dev,
|
|
hba->dma_size, &hba->dma_handle, GFP_KERNEL);
|
|
if (!hba->dma_mem) {
|
|
err = -ENOMEM;
|
|
printk(KERN_ERR DRV_NAME "(%s): dma mem alloc failed\n",
|
|
pci_name(pdev));
|
|
goto out_iounmap;
|
|
}
|
|
|
|
hba->status_buffer =
|
|
(struct status_msg *)(hba->dma_mem + MU_REQ_BUFFER_SIZE);
|
|
hba->copy_buffer = hba->dma_mem + MU_BUFFER_SIZE;
|
|
hba->mu_status = MU_STATE_STARTING;
|
|
|
|
/* firmware uses id/lun pair for a logical drive, but lun would be
|
|
always 0 if CONFIG_SCSI_MULTI_LUN not configured, so we use
|
|
channel to map lun here */
|
|
host->max_channel = ST_MAX_LUN_PER_TARGET - 1;
|
|
host->max_id = ST_MAX_TARGET_NUM;
|
|
host->max_lun = 1;
|
|
host->unique_id = host->host_no;
|
|
host->max_cmd_len = STEX_CDB_LENGTH;
|
|
|
|
hba->host = host;
|
|
hba->pdev = pdev;
|
|
init_waitqueue_head(&hba->waitq);
|
|
|
|
err = request_irq(pdev->irq, stex_intr, IRQF_SHARED, DRV_NAME, hba);
|
|
if (err) {
|
|
printk(KERN_ERR DRV_NAME "(%s): request irq failed\n",
|
|
pci_name(pdev));
|
|
goto out_pci_free;
|
|
}
|
|
|
|
err = stex_handshake(hba);
|
|
if (err)
|
|
goto out_free_irq;
|
|
|
|
err = scsi_init_shared_tag_map(host, host->can_queue);
|
|
if (err) {
|
|
printk(KERN_ERR DRV_NAME "(%s): init shared queue failed\n",
|
|
pci_name(pdev));
|
|
goto out_free_irq;
|
|
}
|
|
|
|
pci_set_drvdata(pdev, hba);
|
|
|
|
err = scsi_add_host(host, &pdev->dev);
|
|
if (err) {
|
|
printk(KERN_ERR DRV_NAME "(%s): scsi_add_host failed\n",
|
|
pci_name(pdev));
|
|
goto out_free_irq;
|
|
}
|
|
|
|
scsi_scan_host(host);
|
|
|
|
return 0;
|
|
|
|
out_free_irq:
|
|
free_irq(pdev->irq, hba);
|
|
out_pci_free:
|
|
dma_free_coherent(&pdev->dev, hba->dma_size,
|
|
hba->dma_mem, hba->dma_handle);
|
|
out_iounmap:
|
|
iounmap(hba->mmio_base);
|
|
out_release_regions:
|
|
pci_release_regions(pdev);
|
|
out_scsi_host_put:
|
|
scsi_host_put(host);
|
|
out_disable:
|
|
pci_disable_device(pdev);
|
|
|
|
return err;
|
|
}
|
|
|
|
static void stex_hba_stop(struct st_hba *hba)
|
|
{
|
|
struct req_msg *req;
|
|
unsigned long flags;
|
|
unsigned long before;
|
|
u16 tag = 0;
|
|
|
|
spin_lock_irqsave(hba->host->host_lock, flags);
|
|
req = stex_alloc_req(hba);
|
|
memset(req->cdb, 0, STEX_CDB_LENGTH);
|
|
|
|
if (hba->cardtype == st_yosemite) {
|
|
req->cdb[0] = MGT_CMD;
|
|
req->cdb[1] = MGT_CMD_SIGNATURE;
|
|
req->cdb[2] = CTLR_CONFIG_CMD;
|
|
req->cdb[3] = CTLR_SHUTDOWN;
|
|
} else {
|
|
req->cdb[0] = CONTROLLER_CMD;
|
|
req->cdb[1] = CTLR_POWER_STATE_CHANGE;
|
|
req->cdb[2] = CTLR_POWER_SAVING;
|
|
}
|
|
|
|
hba->ccb[tag].cmd = NULL;
|
|
hba->ccb[tag].sg_count = 0;
|
|
hba->ccb[tag].sense_bufflen = 0;
|
|
hba->ccb[tag].sense_buffer = NULL;
|
|
hba->ccb[tag].req_type |= PASSTHRU_REQ_TYPE;
|
|
|
|
stex_send_cmd(hba, req, tag);
|
|
spin_unlock_irqrestore(hba->host->host_lock, flags);
|
|
|
|
before = jiffies;
|
|
while (hba->ccb[tag].req_type & PASSTHRU_REQ_TYPE) {
|
|
if (time_after(jiffies, before + ST_INTERNAL_TIMEOUT * HZ))
|
|
return;
|
|
msleep(10);
|
|
}
|
|
}
|
|
|
|
static void stex_hba_free(struct st_hba *hba)
|
|
{
|
|
free_irq(hba->pdev->irq, hba);
|
|
|
|
iounmap(hba->mmio_base);
|
|
|
|
pci_release_regions(hba->pdev);
|
|
|
|
dma_free_coherent(&hba->pdev->dev, hba->dma_size,
|
|
hba->dma_mem, hba->dma_handle);
|
|
}
|
|
|
|
static void stex_remove(struct pci_dev *pdev)
|
|
{
|
|
struct st_hba *hba = pci_get_drvdata(pdev);
|
|
|
|
scsi_remove_host(hba->host);
|
|
|
|
pci_set_drvdata(pdev, NULL);
|
|
|
|
stex_hba_stop(hba);
|
|
|
|
stex_hba_free(hba);
|
|
|
|
scsi_host_put(hba->host);
|
|
|
|
pci_disable_device(pdev);
|
|
}
|
|
|
|
static void stex_shutdown(struct pci_dev *pdev)
|
|
{
|
|
struct st_hba *hba = pci_get_drvdata(pdev);
|
|
|
|
stex_hba_stop(hba);
|
|
}
|
|
|
|
static struct pci_device_id stex_pci_tbl[] = {
|
|
/* st_shasta */
|
|
{ 0x105a, 0x8350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
|
|
st_shasta }, /* SuperTrak EX8350/8300/16350/16300 */
|
|
{ 0x105a, 0xc350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
|
|
st_shasta }, /* SuperTrak EX12350 */
|
|
{ 0x105a, 0x4302, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
|
|
st_shasta }, /* SuperTrak EX4350 */
|
|
{ 0x105a, 0xe350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
|
|
st_shasta }, /* SuperTrak EX24350 */
|
|
|
|
/* st_vsc */
|
|
{ 0x105a, 0x7250, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_vsc },
|
|
|
|
/* st_yosemite */
|
|
{ 0x105a, 0x8650, PCI_ANY_ID, 0x4600, 0, 0,
|
|
st_yosemite }, /* SuperTrak EX4650 */
|
|
{ 0x105a, 0x8650, PCI_ANY_ID, 0x4610, 0, 0,
|
|
st_yosemite }, /* SuperTrak EX4650o */
|
|
{ 0x105a, 0x8650, PCI_ANY_ID, 0x8600, 0, 0,
|
|
st_yosemite }, /* SuperTrak EX8650EL */
|
|
{ 0x105a, 0x8650, PCI_ANY_ID, 0x8601, 0, 0,
|
|
st_yosemite }, /* SuperTrak EX8650 */
|
|
{ 0x105a, 0x8650, PCI_ANY_ID, 0x8602, 0, 0,
|
|
st_yosemite }, /* SuperTrak EX8654 */
|
|
{ 0x105a, 0x8650, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
|
|
st_yosemite }, /* generic st_yosemite */
|
|
{ } /* terminate list */
|
|
};
|
|
MODULE_DEVICE_TABLE(pci, stex_pci_tbl);
|
|
|
|
static struct pci_driver stex_pci_driver = {
|
|
.name = DRV_NAME,
|
|
.id_table = stex_pci_tbl,
|
|
.probe = stex_probe,
|
|
.remove = __devexit_p(stex_remove),
|
|
.shutdown = stex_shutdown,
|
|
};
|
|
|
|
static int __init stex_init(void)
|
|
{
|
|
printk(KERN_INFO DRV_NAME
|
|
": Promise SuperTrak EX Driver version: %s\n",
|
|
ST_DRIVER_VERSION);
|
|
|
|
return pci_register_driver(&stex_pci_driver);
|
|
}
|
|
|
|
static void __exit stex_exit(void)
|
|
{
|
|
pci_unregister_driver(&stex_pci_driver);
|
|
}
|
|
|
|
module_init(stex_init);
|
|
module_exit(stex_exit);
|