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freebsd-dev/sys/dev/ciss/cissreg.h
Scott Long 1fe6c4ee54 Add SCSI passthrough support to CISS. This allows devices like tape drives 
that are on a CISS bus to be exported up to CAM and made available as normal
devices.  This will typically add one or two buses to CAM, which will be
numbered starting at 32 to allow room for CISS proxy buses.  Also, the CISS
firmware usually hides disk devices, but these can also be exposed as 'pass'
devices if you set the hw.ciss.expose_hidden_physical tunable.

Sponsored by:	Tape Laboratories, Inc.
MFC After: 3 days
2004-06-21 20:18:40 +00:00

718 lines
22 KiB
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/*-
* Copyright (c) 2001 Michael Smith
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
/*
* Structure and I/O definitions for the Command Interface for SCSI-3 Support.
*
* Data in command CDBs are in big-endian format. All other data is little-endian.
* This header only supports little-endian hosts at this time.
*/
union ciss_device_address
{
struct /* MODE_PERIPHERAL and MODE_MASK_PERIPHERAL */
{
u_int32_t target:24; /* SCSI target */
u_int32_t bus:6; /* SCSI bus */
u_int32_t mode:2; /* CISS_HDR_ADDRESS_MODE_* */
u_int32_t extra_address; /* SCSI-3 level-2 and level-3 address bytes */
} physical;
struct /* MODE_LOGICAL */
{
u_int32_t lun:30; /* logical device ID */
u_int32_t mode:2; /* CISS_HDR_ADDRESS_MODE_LOGICAL */
u_int32_t :32; /* reserved */
} logical;
struct
{
u_int32_t :30;
u_int32_t mode:2;
u_int32_t :32;
} mode;
};
#define CISS_HDR_ADDRESS_MODE_PERIPHERAL 0x0
#define CISS_HDR_ADDRESS_MODE_LOGICAL 0x1
#define CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL 0x3
#define CISS_EXTRA_MODE2(extra) ((extra & 0xc0000000) >> 30)
#define CISS_EXTRA_BUS2(extra) ((extra & 0x3f000000) >> 24)
#define CISS_EXTRA_TARGET2(extra) ((extra & 0x00ff0000) >> 16)
#define CISS_EXTRA_MODE3(extra) ((extra & 0x0000c000) >> 14)
#define CISS_EXTRA_BUS3(extra) ((extra & 0x00003f00) >> 8)
#define CISS_EXTRA_TARGET3(extra) ((extra & 0x000000ff))
struct ciss_header
{
u_int8_t :8; /* reserved */
u_int8_t sg_in_list; /* SG's in the command structure */
u_int16_t sg_total; /* total count of SGs for this command */
u_int32_t host_tag; /* host identifier, bits 0&1 must be clear */
#define CISS_HDR_HOST_TAG_ERROR (1<<1)
u_int32_t host_tag_zeroes; /* tag is 64 bits, but interface only supports 32 */
union ciss_device_address address;
} __packed;
struct ciss_cdb
{
u_int8_t cdb_length; /* valid CDB bytes */
u_int8_t type:3;
#define CISS_CDB_TYPE_COMMAND 0
#define CISS_CDB_TYPE_MESSAGE 1
u_int8_t attribute:3;
#define CISS_CDB_ATTRIBUTE_UNTAGGED 0
#define CISS_CDB_ATTRIBUTE_SIMPLE 4
#define CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE 5
#define CISS_CDB_ATTRIBUTE_ORDERED 6
#define CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT 7
u_int8_t direction:2;
#define CISS_CDB_DIRECTION_NONE 0
#define CISS_CDB_DIRECTION_WRITE 1
#define CISS_CDB_DIRECTION_READ 2
u_int16_t timeout; /* seconds */
#define CISS_CDB_BUFFER_SIZE 16
u_int8_t cdb[CISS_CDB_BUFFER_SIZE];
} __packed;
struct ciss_error_info_pointer
{
u_int64_t error_info_address; /* points to ciss_error_info structure */
u_int32_t error_info_length;
} __packed;
struct ciss_error_info
{
u_int8_t scsi_status;
#define CISS_SCSI_STATUS_GOOD 0x00 /* these are scsi-standard values */
#define CISS_SCSI_STATUS_CHECK_CONDITION 0x02
#define CISS_SCSI_STATUS_CONDITION_MET 0x04
#define CISS_SCSI_STATUS_BUSY 0x08
#define CISS_SCSI_STATUS_INDETERMINATE 0x10
#define CISS_SCSI_STATUS_INDETERMINATE_CM 0x14
#define CISS_SCSI_STATUS_RESERVATION_CONFLICT 0x18
#define CISS_SCSI_STATUS_COMMAND_TERMINATED 0x22
#define CISS_SCSI_STATUS_QUEUE_FULL 0x28
#define CISS_SCSI_STATUS_ACA_ACTIVE 0x30
u_int8_t sense_length;
u_int16_t command_status;
#define CISS_CMD_STATUS_SUCCESS 0
#define CISS_CMD_STATUS_TARGET_STATUS 1
#define CISS_CMD_STATUS_DATA_UNDERRUN 2
#define CISS_CMD_STATUS_DATA_OVERRUN 3
#define CISS_CMD_STATUS_INVALID_COMMAND 4
#define CISS_CMD_STATUS_PROTOCOL_ERROR 5
#define CISS_CMD_STATUS_HARDWARE_ERROR 6
#define CISS_CMD_STATUS_CONNECTION_LOST 7
#define CISS_CMD_STATUS_ABORTED 8
#define CISS_CMD_STATUS_ABORT_FAILED 9
#define CISS_CMD_STATUS_UNSOLICITED_ABORT 10
#define CISS_CMD_STATUS_TIMEOUT 11
#define CISS_CMD_STATUS_UNABORTABLE 12
u_int32_t residual_count;
union {
struct {
u_int8_t res1[3];
u_int8_t type;
u_int32_t error_info;
} common_info __packed;
struct {
u_int8_t res1[2];
u_int8_t offense_size;
u_int8_t offense_offset;
u_int32_t offense_value;
} invalid_command __packed;
} additional_error_info;
u_int8_t sense_info[0];
} __packed;
struct ciss_sg_entry
{
u_int64_t address;
#define CISS_SG_ADDRESS_BITBUCKET (~(u_int64_t)0)
u_int32_t length;
u_int32_t :31;
u_int32_t extension:1; /* address points to another s/g chain */
} __packed;
struct ciss_command
{
struct ciss_header header;
struct ciss_cdb cdb;
struct ciss_error_info_pointer error_info;
struct ciss_sg_entry sg[0];
} __packed;
#define CISS_OPCODE_REPORT_LOGICAL_LUNS 0xc2
#define CISS_OPCODE_REPORT_PHYSICAL_LUNS 0xc3
struct ciss_lun_report
{
u_int32_t list_size; /* big-endian */
u_int32_t :32;
union ciss_device_address lun[0];
} __packed;
#define CISS_VPD_LOGICAL_DRIVE_GEOMETRY 0xc1
struct ciss_ldrive_geometry
{
u_int8_t periph_qualifier:3;
u_int8_t periph_devtype:5;
u_int8_t page_code;
u_int8_t res1;
u_int8_t page_length;
u_int16_t cylinders; /* big-endian */
u_int8_t heads;
u_int8_t sectors;
u_int8_t fault_tolerance;
u_int8_t res2[3];
} __attribute__ ((packed));
struct ciss_report_cdb
{
u_int8_t opcode;
u_int8_t reserved[5];
u_int32_t length; /* big-endian */
u_int8_t :8;
u_int8_t control;
} __packed;
/*
* Note that it's not clear whether we have to set the detail field to
* the tag of the command to be aborted, or the tag field in the command itself;
* documentation conflicts on this.
*/
#define CISS_OPCODE_MESSAGE_ABORT 0x00
#define CISS_MESSAGE_ABORT_TASK 0x00
#define CISS_MESSAGE_ABORT_TASK_SET 0x01
#define CISS_MESSAGE_ABORT_CLEAR_ACA 0x02
#define CISS_MESSAGE_ABORT_CLEAR_TASK_SET 0x03
#define CISS_OPCODE_MESSAGE_RESET 0x01
#define CISS_MESSAGE_RESET_CONTROLLER 0x00
#define CISS_MESSAGE_RESET_BUS 0x01
#define CISS_MESSAGE_RESET_TARGET 0x03
#define CISS_MESSAGE_RESET_LOGICAL_UNIT 0x04
#define CISS_OPCODE_MESSAGE_SCAN 0x02
#define CISS_MESSAGE_SCAN_CONTROLLER 0x00
#define CISS_MESSAGE_SCAN_BUS 0x01
#define CISS_MESSAGE_SCAN_TARGET 0x03
#define CISS_MESSAGE_SCAN_LOGICAL_UNIT 0x04
#define CISS_OPCODE_MESSAGE_NOP 0x03
struct ciss_message_cdb
{
u_int8_t opcode;
u_int8_t type;
u_int16_t :16;
u_int32_t abort_tag; /* XXX endianness? */
u_int8_t reserved[8];
} __packed;
/*
* CISS vendor-specific commands/messages.
*
* Note that while messages and vendor-specific commands are
* differentiated, they are handled in basically the same way and can
* be considered to be basically the same thing, as long as the cdb
* type field is set correctly.
*/
#define CISS_OPCODE_READ 0xc0
#define CISS_OPCODE_WRITE 0xc1
#define CISS_COMMAND_NOTIFY_ON_EVENT 0xd0
#define CISS_COMMAND_ABORT_NOTIFY 0xd1
struct ciss_notify_cdb
{
u_int8_t opcode;
u_int8_t command;
u_int8_t res1[2];
u_int16_t timeout; /* seconds, little-endian */
u_int8_t res2; /* reserved */
u_int8_t synchronous:1; /* return immediately */
u_int8_t ordered:1; /* return events in recorded order */
u_int8_t seek_to_oldest:1; /* reset read counter to oldest event */
u_int8_t new_only:1; /* ignore any queued events */
u_int8_t :4;
u_int32_t length; /* must be 512, little-endian */
#define CISS_NOTIFY_DATA_SIZE 512
u_int8_t control;
} __packed;
#define CISS_NOTIFY_NOTIFIER 0
#define CISS_NOTIFY_NOTIFIER_STATUS 0
#define CISS_NOTIFY_NOTIFIER_PROTOCOL 1
#define CISS_NOTIFY_HOTPLUG 1
#define CISS_NOTIFY_HOTPLUG_PHYSICAL 0
#define CISS_NOTIFY_HOTPLUG_POWERSUPPLY 1
#define CISS_NOTIFY_HOTPLUG_FAN 2
#define CISS_NOTIFY_HOTPLUG_POWER 3
#define CISS_NOTIFY_HOTPLUG_REDUNDANT 4
#define CISS_NOTIFY_HOTPLUG_NONDISK 5
#define CISS_NOTIFY_HARDWARE 2
#define CISS_NOTIFY_HARDWARE_CABLES 0
#define CISS_NOTIFY_HARDWARE_MEMORY 1
#define CISS_NOTIFY_HARDWARE_FAN 2
#define CISS_NOTIFY_HARDWARE_VRM 3
#define CISS_NOTIFY_ENVIRONMENT 3
#define CISS_NOTIFY_ENVIRONMENT_TEMPERATURE 0
#define CISS_NOTIFY_ENVIRONMENT_POWERSUPPLY 1
#define CISS_NOTIFY_ENVIRONMENT_CHASSIS 2
#define CISS_NOTIFY_ENVIRONMENT_POWER 3
#define CISS_NOTIFY_PHYSICAL 4
#define CISS_NOTIFY_PHYSICAL_STATE 0
#define CISS_NOTIFY_LOGICAL 5
#define CISS_NOTIFY_LOGICAL_STATUS 0
#define CISS_NOTIFY_LOGICAL_ERROR 1
#define CISS_NOTIFY_LOGICAL_SURFACE 2
#define CISS_NOTIFY_REDUNDANT 6
#define CISS_NOTIFY_REDUNDANT_STATUS 0
#define CISS_NOTIFY_CISS 8
#define CISS_NOTIFY_CISS_REDUNDANT_CHANGE 0
#define CISS_NOTIFY_CISS_PATH_STATUS 1
#define CISS_NOTIFY_CISS_HARDWARE_ERROR 2
#define CISS_NOTIFY_CISS_LOGICAL 3
struct ciss_notify_drive
{
u_int16_t physical_drive_number;
u_int8_t configured_drive_flag;
u_int8_t spare_drive_flag;
u_int8_t big_physical_drive_number;
u_int8_t enclosure_bay_number;
} __packed;
struct ciss_notify_locator
{
u_int16_t port;
u_int16_t id;
u_int16_t box;
} __packed;
struct ciss_notify_redundant_controller
{
u_int16_t slot;
} __packed;
struct ciss_notify_logical_status
{
u_int16_t logical_drive;
u_int8_t previous_state;
u_int8_t new_state;
u_int8_t spare_state;
} __packed;
struct ciss_notify_rebuild_aborted
{
u_int16_t logical_drive;
u_int8_t replacement_drive;
u_int8_t error_drive;
u_int8_t big_replacement_drive;
u_int8_t big_error_drive;
} __packed;
struct ciss_notify_io_error
{
u_int16_t logical_drive;
u_int32_t lba;
u_int16_t block_count;
u_int8_t command;
u_int8_t failure_bus;
u_int8_t failure_drive;
u_int64_t big_lba;
} __packed;
struct ciss_notify_consistency_completed
{
u_int16_t logical_drive;
} __packed;
struct ciss_notify
{
u_int32_t timestamp; /* seconds since controller power-on */
u_int16_t class;
u_int16_t subclass;
u_int16_t detail;
union
{
struct ciss_notify_drive drive;
struct ciss_notify_locator location;
struct ciss_notify_redundant_controller redundant_controller;
struct ciss_notify_logical_status logical_status;
struct ciss_notify_rebuild_aborted rebuild_aborted;
struct ciss_notify_io_error io_error;
struct ciss_notify_consistency_completed consistency_completed;
u_int8_t data[64];
} data;
char message[80];
u_int32_t tag;
u_int16_t date;
u_int16_t year;
u_int32_t time;
u_int16_t pre_power_up_time;
union ciss_device_address device;
/* XXX pads to 512 bytes */
} __packed;
/*
* CISS config table, which describes the controller's
* supported interface(s) and capabilities.
*
* This is mapped directly via PCI.
*/
struct ciss_config_table
{
char signature[4]; /* "CISS" */
u_int32_t valence;
#define CISS_MIN_VALENCE 1 /* only value currently supported */
#define CISS_MAX_VALENCE 1
u_int32_t supported_methods;
#define CISS_TRANSPORT_METHOD_READY (1<<0)
#define CISS_TRANSPORT_METHOD_SIMPLE (1<<1)
u_int32_t active_method;
u_int32_t requested_method;
u_int32_t command_physlimit;
u_int32_t interrupt_coalesce_delay;
u_int32_t interrupt_coalesce_count;
u_int32_t max_outstanding_commands;
u_int32_t bus_types;
#define CISS_TRANSPORT_BUS_TYPE_ULTRA2 (1<<0)
#define CISS_TRANSPORT_BUS_TYPE_ULTRA3 (1<<1)
#define CISS_TRANSPORT_BUS_TYPE_FIBRE1 (1<<8)
#define CISS_TRANSPORT_BUS_TYPE_FIBRE2 (1<<9)
u_int32_t transport_offset;
char server_name[16];
u_int32_t heartbeat;
u_int32_t host_driver;
#define CISS_DRIVER_SUPPORT_UNIT_ATTENTION (1<<0)
#define CISS_DRIVER_QUICK_INIT (1<<1)
#define CISS_DRIVER_INTERRUPT_ON_LOCKUP (1<<2)
#define CISS_DRIVER_SUPPORT_MIXED_Q_TAGS (1<<3)
#define CISS_DRIVER_HOST_IS_ALPHA (1<<4)
#define CISS_DRIVER_MULTI_LUN_SUPPORT (1<<5)
#define CISS_DRIVER_MESSAGE_REQUESTS_SUPPORTED (1<<7)
#define CISS_DRIVER_DAUGHTER_ATTACHED (1<<8)
#define CISS_DRIVER_SCSI_PREFETCH (1<<9)
u_int32_t max_sg_length; /* 31 in older firmware */
} __packed;
/*
* In a flagrant violation of what CISS seems to be meant to be about,
* Compaq recycle a goodly portion of their previous generation's
* command set (and all the legacy baggage related to a design
* originally aimed at narrow SCSI) through the Array Controller Read
* and Array Controller Write interface.
*
* Command ID values here can be looked up for in the
* publically-available documentation for the older controllers; note
* that the command layout is necessarily different to fit within the
* CDB.
*/
#define CISS_ARRAY_CONTROLLER_READ 0x26
#define CISS_ARRAY_CONTROLLER_WRITE 0x27
#define CISS_BMIC_ID_LDRIVE 0x10
#define CISS_BMIC_ID_CTLR 0x11
#define CISS_BMIC_ID_LSTATUS 0x12
#define CISS_BMIC_ID_PDRIVE 0x15
#define CISS_BMIC_BLINK_PDRIVE 0x16
#define CISS_BMIC_SENSE_BLINK_PDRIVE 0x17
#define CISS_BMIC_FLUSH_CACHE 0xc2
#define CISS_BMIC_ACCEPT_MEDIA 0xe0
/*
* When numbering drives, the original design assumed that
* drives 0-7 are on the first SCSI bus, 8-15 on the second,
* and so forth. In order to handle modern SCSI configurations,
* the MSB is set in the drive ID field, in which case the
* modulus changes from 8 to the number of supported drives
* per SCSI bus (as obtained from the ID_CTLR command).
* This feature is referred to as BIG_MAP support, and we assume
* that all CISS controllers support it.
*/
#define CISS_BIG_MAP_ID(sc, bus, target) \
(0x80 | \
((sc)->ciss_id->drives_per_scsi_bus * (bus)) | \
(target))
#define CISS_BIG_MAP_BUS(sc, id) \
(((id) & 0x80) ? (((id) & ~0x80) / (sc)->ciss_id->drives_per_scsi_bus) : -1)
#define CISS_BIG_MAP_TARGET(sc, id) \
(((id) & 0x80) ? (((id) & ~0x80) % (sc)->ciss_id->drives_per_scsi_bus) : -1)
#define CISS_BIG_MAP_ENTRIES 128 /* number of entries in a BIG_MAP */
/*
* In the device address of a logical volume, the bus number
* is encoded into the logical lun volume number starting
* at the second byte, with the first byte defining the
* logical drive number.
*/
#define CISS_LUN_TO_BUS(x) (((x) >> 16) & 0xFF)
#define CISS_LUN_TO_TARGET(x) ((x) & 0xFF)
/*
* BMIC CDB
*
* Note that the phys_drive/res1 field is nominally the 32-bit
* "block number" field, but the only BMIC command(s) of interest
* implemented overload the MSB (note big-endian format here)
* to be the physical drive ID, so we define accordingly.
*/
struct ciss_bmic_cdb {
u_int8_t opcode;
u_int8_t log_drive;
u_int8_t phys_drive;
u_int8_t res1[3];
u_int8_t bmic_opcode;
u_int16_t size; /* big-endian */
u_int8_t res2;
} __packed;
/*
* BMIC command command/return structures.
*/
/* CISS_BMIC_ID_LDRIVE */
struct ciss_bmic_id_ldrive {
u_int16_t block_size;
u_int32_t blocks_available;
u_int8_t drive_parameter_table[16]; /* XXX define */
u_int8_t fault_tolerance;
#define CISS_LDRIVE_RAID0 0
#define CISS_LDRIVE_RAID4 1
#define CISS_LDRIVE_RAID1 2
#define CISS_LDRIVE_RAID5 3
#define CISS_LDRIVE_RAID51 4
#define CISS_LDRIVE_RAIDADG 5
u_int8_t res1;
u_int8_t bios_disable_flag;
u_int8_t res2;
u_int32_t logical_drive_identifier;
char logical_drive_label[64];
u_int64_t big_blocks_available;
u_int8_t res3[410];
} __packed;
/* CISS_BMIC_ID_LSTATUS */
struct ciss_bmic_id_lstatus {
u_int8_t status;
#define CISS_LSTATUS_OK 0
#define CISS_LSTATUS_FAILED 1
#define CISS_LSTATUS_NOT_CONFIGURED 2
#define CISS_LSTATUS_INTERIM_RECOVERY 3
#define CISS_LSTATUS_READY_RECOVERY 4
#define CISS_LSTATUS_RECOVERING 5
#define CISS_LSTATUS_WRONG_PDRIVE 6
#define CISS_LSTATUS_MISSING_PDRIVE 7
#define CISS_LSTATUS_EXPANDING 10
#define CISS_LSTATUS_BECOMING_READY 11
#define CISS_LSTATUS_QUEUED_FOR_EXPANSION 12
u_int32_t deprecated_drive_failure_map;
u_int8_t res1[416];
u_int32_t blocks_to_recover;
u_int8_t deprecated_drive_rebuilding;
u_int16_t deprecated_remap_count[32];
u_int32_t deprecated_replacement_map;
u_int32_t deprecated_active_spare_map;
u_int8_t spare_configured:1;
u_int8_t spare_rebuilding:1;
u_int8_t spare_rebuilt:1;
u_int8_t spare_failed:1;
u_int8_t spare_switched:1;
u_int8_t spare_available:1;
u_int8_t res2:2;
u_int8_t deprecated_spare_to_replace_map[32];
u_int32_t deprecated_replaced_marked_ok_map;
u_int8_t media_exchanged;
u_int8_t cache_failure;
u_int8_t expand_failure;
u_int8_t rebuild_read_failure:1;
u_int8_t rebuild_write_failure:1;
u_int8_t res3:6;
u_int8_t drive_failure_map[CISS_BIG_MAP_ENTRIES / 8];
u_int16_t remap_count[CISS_BIG_MAP_ENTRIES];
u_int8_t replacement_map[CISS_BIG_MAP_ENTRIES / 8];
u_int8_t active_spare_map[CISS_BIG_MAP_ENTRIES / 8];
u_int8_t spare_to_replace_map[CISS_BIG_MAP_ENTRIES];
u_int8_t replaced_marked_ok_map[CISS_BIG_MAP_ENTRIES / 8];
u_int8_t drive_rebuilding;
u_int64_t big_blocks_to_recover;
u_int8_t res4[28];
} __packed;
/* CISS_BMIC_ID_CTLR */
struct ciss_bmic_id_table {
u_int8_t configured_logical_drives;
u_int32_t config_signature;
char running_firmware_revision[4];
char stored_firmware_revision[4];
u_int8_t hardware_revision;
u_int8_t res1[4];
u_int32_t deprecated_drive_present_map;
u_int32_t deprecated_external_drive_present_map;
u_int32_t board_id;
u_int8_t res2;
u_int32_t deprecated_non_disk_map;
u_int8_t res3[5];
char marketting_revision;
u_int8_t res4:3;
u_int8_t more_than_seven_supported:1;
u_int8_t res5:3;
u_int8_t big_map_supported:1; /* must be set! */
u_int8_t res6[2];
u_int8_t scsi_bus_count;
u_int32_t res7;
u_int32_t controller_clock;
u_int8_t drives_per_scsi_bus;
u_int8_t big_drive_present_map[CISS_BIG_MAP_ENTRIES / 8];
u_int8_t big_external_drive_present_map[CISS_BIG_MAP_ENTRIES / 8];
u_int8_t big_non_disk_map[CISS_BIG_MAP_ENTRIES / 8];
} __packed;
/* CISS_BMIC_ID_PDRIVE */
struct ciss_bmic_id_pdrive {
u_int8_t scsi_bus;
u_int8_t scsi_id;
u_int16_t block_size;
u_int32_t total_blocks;
u_int32_t reserved_blocks;
char model[40];
char serial[40];
char revision[8];
u_int8_t inquiry_bits;
u_int8_t res1[2];
u_int8_t drive_present:1;
u_int8_t non_disk:1;
u_int8_t wide:1;
u_int8_t synchronous:1;
u_int8_t narrow:1;
u_int8_t wide_downgraded_to_narrow:1;
u_int8_t ultra:1;
u_int8_t ultra2:1;
u_int8_t SMART:1;
u_int8_t SMART_errors_recorded:1;
u_int8_t SMART_errors_enabled:1;
u_int8_t SMART_errors_detected:1;
u_int8_t external:1;
u_int8_t configured:1;
u_int8_t configured_spare:1;
u_int8_t cache_saved_enabled:1;
u_int8_t res2;
u_int8_t res3:6;
u_int8_t cache_currently_enabled:1;
u_int8_t cache_safe:1;
u_int8_t res4[5];
char connector[2];
u_int8_t res5;
u_int8_t bay;
u_int16_t rpm;
u_int8_t drive_type;
u_int8_t res6[393];
} __packed;
/* CISS_BMIC_BLINK_PDRIVE */
/* CISS_BMIC_SENSE_BLINK_PDRIVE */
struct ciss_bmic_blink_pdrive {
u_int32_t blink_duration; /* 10ths of a second */
u_int32_t duration_elapsed; /* only for sense command */
u_int8_t blinktab[256];
#define CISS_BMIC_BLINK_ALL 1
#define CISS_BMIC_BLINK_TIMED 2
u_int8_t res2[248];
} __packed;
/* CISS_BMIC_FLUSH_CACHE */
struct ciss_bmic_flush_cache {
u_int16_t flag;
#define CISS_BMIC_FLUSH_AND_ENABLE 0
#define CISS_BMIC_FLUSH_AND_DISABLE 1
u_int8_t res1[510];
} __packed;
#ifdef _KERNEL
/*
* CISS "simple" transport layer.
*
* Note that there are two slightly different versions of this interface
* with different interrupt mask bits. There's nothing like consistency...
*/
#define CISS_TL_SIMPLE_BAR_REGS 0x10 /* BAR pointing to register space */
#define CISS_TL_SIMPLE_BAR_CFG 0x14 /* BAR pointing to space containing config table */
#define CISS_TL_SIMPLE_IDBR 0x20 /* inbound doorbell register */
#define CISS_TL_SIMPLE_IDBR_CFG_TABLE (1<<0) /* notify controller of config table update */
#define CISS_TL_SIMPLE_ISR 0x30 /* interrupt status register */
#define CISS_TL_SIMPLE_IMR 0x34 /* interrupt mask register */
#define CISS_TL_SIMPLE_INTR_OPQ_SA5 (1<<3) /* OPQ not empty interrupt, SA5 boards */
#define CISS_TL_SIMPLE_INTR_OPQ_SA5B (1<<2) /* OPQ not empty interrupt, SA5B boards */
#define CISS_TL_SIMPLE_IPQ 0x40 /* inbound post queue */
#define CISS_TL_SIMPLE_OPQ 0x44 /* outbound post queue */
#define CISS_TL_SIMPLE_OPQ_EMPTY (~(u_int32_t)0)
#define CISS_TL_SIMPLE_CFG_BAR 0xb4 /* should be 0x14 */
#define CISS_TL_SIMPLE_CFG_OFF 0xb8 /* offset in BAR at which config table is located */
/*
* Register access primitives.
*/
#define CISS_TL_SIMPLE_READ(sc, ofs) \
bus_space_read_4(sc->ciss_regs_btag, sc->ciss_regs_bhandle, ofs)
#define CISS_TL_SIMPLE_WRITE(sc, ofs, val) \
bus_space_write_4(sc->ciss_regs_btag, sc->ciss_regs_bhandle, ofs, val)
#define CISS_TL_SIMPLE_POST_CMD(sc, phys) CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IPQ, phys)
#define CISS_TL_SIMPLE_FETCH_CMD(sc) CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_OPQ)
/*
* XXX documentation conflicts with the Linux driver as to whether setting or clearing
* bits masks interrupts
*/
#define CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc) \
CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IMR, \
CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IMR) | (sc)->ciss_interrupt_mask)
#define CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc) \
CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IMR, \
CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IMR) & ~(sc)->ciss_interrupt_mask)
#define CISS_TL_SIMPLE_OPQ_INTERRUPT(sc) \
(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_ISR) & (sc)->ciss_interrupt_mask)
#endif /* _KERNEL */
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