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freebsd/sys/dev/ciss/cissreg.h
Scott Long 2fdaa90df8 Sync driver with Yahoo: 
- Implement MSI support (MSIX support was already there)
- Use a table to drive MSI/MSIX exceptions
- Pre-calculate the command address instead of wasting cycles doing the
  calculation on every i/o.
2009-09-16 23:27:14 +00:00

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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;
} __packed common_info;
struct {
u_int8_t res1[2];
u_int8_t offense_size;
u_int8_t offense_offset;
u_int32_t offense_value;
} __packed invalid_command;
} 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;
u_int32_t supported_methods;
#define CISS_TRANSPORT_METHOD_READY (1<<0)
#define CISS_TRANSPORT_METHOD_SIMPLE (1<<1)
#define CISS_TRANSPORT_METHOD_PERF (1<<2)
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;
/*
* Configuration table for the Performant transport. Only 4 request queues
* are mentioned in this table, though apparently up to 256 can exist.
*/
struct ciss_perf_config {
uint32_t fetch_count[8];
#define CISS_SG_FETCH_MAX 0
#define CISS_SG_FETCH_1 1
#define CISS_SG_FETCH_2 2
#define CISS_SG_FETCH_4 3
#define CISS_SG_FETCH_8 4
#define CISS_SG_FETCH_16 5
#define CISS_SG_FETCH_32 6
#define CISS_SG_FETCH_NONE 7
uint32_t rq_size;
uint32_t rq_count;
uint32_t rq_bank_lo;
uint32_t rq_bank_hi;
struct {
uint32_t rq_addr_lo;
uint32_t rq_addr_hi;
} __packed rq[4];
} __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_SOFT_RESET 0x40
#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_OSR 0x9c /* outbound status register */
#define CISS_TL_SIMPLE_ODC 0xa0 /* outbound doorbell clear register */
#define CISS_TL_SIMPLE_ODC_CLEAR (0x1)
#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)
#define CISS_TL_PERF_INTR_OPQ (CISS_TL_SIMPLE_INTR_OPQ_SA5 | CISS_TL_SIMPLE_INTR_OPQ_SA5B)
#define CISS_TL_PERF_INTR_MSI 0x01
#define CISS_TL_PERF_POST_CMD(sc, cr) CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IPQ, cr->cr_ccphys | (cr)->cr_sg_tag)
#define CISS_TL_PERF_FLUSH_INT(sc) CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_OSR)
#define CISS_TL_PERF_CLEAR_INT(sc) CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_ODC, CISS_TL_SIMPLE_ODC_CLEAR)
#define CISS_CYCLE_MASK 0x00000001
/* Only need one MSI/MSI-X vector */
#define CISS_MSI_COUNT 1
#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)
#endif /* _KERNEL */
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