You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
346 lines
10 KiB
346 lines
10 KiB
/*
|
|
* sbp2.h - Defines and prototypes for sbp2.c
|
|
*
|
|
* Copyright (C) 2000 James Goodwin, Filanet Corporation (www.filanet.com)
|
|
* jamesg@filanet.com
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software Foundation,
|
|
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifndef SBP2_H
|
|
#define SBP2_H
|
|
|
|
#define SBP2_DEVICE_NAME "sbp2"
|
|
|
|
/*
|
|
* There is no transport protocol limit to the CDB length, but we implement
|
|
* a fixed length only. 16 bytes is enough for disks larger than 2 TB.
|
|
*/
|
|
#define SBP2_MAX_CDB_SIZE 16
|
|
|
|
/*
|
|
* SBP-2 specific definitions
|
|
*/
|
|
|
|
#define ORB_DIRECTION_WRITE_TO_MEDIA 0x0
|
|
#define ORB_DIRECTION_READ_FROM_MEDIA 0x1
|
|
#define ORB_DIRECTION_NO_DATA_TRANSFER 0x2
|
|
|
|
#define ORB_SET_NULL_PTR(v) (((v) & 0x1) << 31)
|
|
#define ORB_SET_NOTIFY(v) (((v) & 0x1) << 31)
|
|
#define ORB_SET_RQ_FMT(v) (((v) & 0x3) << 29)
|
|
#define ORB_SET_NODE_ID(v) (((v) & 0xffff) << 16)
|
|
#define ORB_SET_STATUS_FIFO_HI(v, id) ((v) >> 32 | ORB_SET_NODE_ID(id))
|
|
#define ORB_SET_STATUS_FIFO_LO(v) ((v) & 0xffffffff)
|
|
#define ORB_SET_DATA_SIZE(v) ((v) & 0xffff)
|
|
#define ORB_SET_PAGE_SIZE(v) (((v) & 0x7) << 16)
|
|
#define ORB_SET_PAGE_TABLE_PRESENT(v) (((v) & 0x1) << 19)
|
|
#define ORB_SET_MAX_PAYLOAD(v) (((v) & 0xf) << 20)
|
|
#define ORB_SET_SPEED(v) (((v) & 0x7) << 24)
|
|
#define ORB_SET_DIRECTION(v) (((v) & 0x1) << 27)
|
|
|
|
struct sbp2_command_orb {
|
|
u32 next_ORB_hi;
|
|
u32 next_ORB_lo;
|
|
u32 data_descriptor_hi;
|
|
u32 data_descriptor_lo;
|
|
u32 misc;
|
|
u8 cdb[SBP2_MAX_CDB_SIZE];
|
|
} __attribute__((packed));
|
|
|
|
#define SBP2_LOGIN_REQUEST 0x0
|
|
#define SBP2_QUERY_LOGINS_REQUEST 0x1
|
|
#define SBP2_RECONNECT_REQUEST 0x3
|
|
#define SBP2_SET_PASSWORD_REQUEST 0x4
|
|
#define SBP2_LOGOUT_REQUEST 0x7
|
|
#define SBP2_ABORT_TASK_REQUEST 0xb
|
|
#define SBP2_ABORT_TASK_SET 0xc
|
|
#define SBP2_LOGICAL_UNIT_RESET 0xe
|
|
#define SBP2_TARGET_RESET_REQUEST 0xf
|
|
|
|
#define ORB_SET_LUN(v) ((v) & 0xffff)
|
|
#define ORB_SET_FUNCTION(v) (((v) & 0xf) << 16)
|
|
#define ORB_SET_RECONNECT(v) (((v) & 0xf) << 20)
|
|
#define ORB_SET_EXCLUSIVE(v) ((v) ? 1 << 28 : 0)
|
|
#define ORB_SET_LOGIN_RESP_LENGTH(v) ((v) & 0xffff)
|
|
#define ORB_SET_PASSWD_LENGTH(v) (((v) & 0xffff) << 16)
|
|
|
|
struct sbp2_login_orb {
|
|
u32 password_hi;
|
|
u32 password_lo;
|
|
u32 login_response_hi;
|
|
u32 login_response_lo;
|
|
u32 lun_misc;
|
|
u32 passwd_resp_lengths;
|
|
u32 status_fifo_hi;
|
|
u32 status_fifo_lo;
|
|
} __attribute__((packed));
|
|
|
|
#define RESPONSE_GET_LOGIN_ID(v) ((v) & 0xffff)
|
|
#define RESPONSE_GET_LENGTH(v) (((v) >> 16) & 0xffff)
|
|
#define RESPONSE_GET_RECONNECT_HOLD(v) ((v) & 0xffff)
|
|
|
|
struct sbp2_login_response {
|
|
u32 length_login_ID;
|
|
u32 command_block_agent_hi;
|
|
u32 command_block_agent_lo;
|
|
u32 reconnect_hold;
|
|
} __attribute__((packed));
|
|
|
|
#define ORB_SET_LOGIN_ID(v) ((v) & 0xffff)
|
|
#define ORB_SET_QUERY_LOGINS_RESP_LENGTH(v) ((v) & 0xffff)
|
|
|
|
struct sbp2_query_logins_orb {
|
|
u32 reserved1;
|
|
u32 reserved2;
|
|
u32 query_response_hi;
|
|
u32 query_response_lo;
|
|
u32 lun_misc;
|
|
u32 reserved_resp_length;
|
|
u32 status_fifo_hi;
|
|
u32 status_fifo_lo;
|
|
} __attribute__((packed));
|
|
|
|
#define RESPONSE_GET_MAX_LOGINS(v) ((v) & 0xffff)
|
|
#define RESPONSE_GET_ACTIVE_LOGINS(v) ((RESPONSE_GET_LENGTH((v)) - 4) / 12)
|
|
|
|
struct sbp2_query_logins_response {
|
|
u32 length_max_logins;
|
|
u32 misc_IDs;
|
|
u32 initiator_misc_hi;
|
|
u32 initiator_misc_lo;
|
|
} __attribute__((packed));
|
|
|
|
struct sbp2_reconnect_orb {
|
|
u32 reserved1;
|
|
u32 reserved2;
|
|
u32 reserved3;
|
|
u32 reserved4;
|
|
u32 login_ID_misc;
|
|
u32 reserved5;
|
|
u32 status_fifo_hi;
|
|
u32 status_fifo_lo;
|
|
} __attribute__((packed));
|
|
|
|
struct sbp2_logout_orb {
|
|
u32 reserved1;
|
|
u32 reserved2;
|
|
u32 reserved3;
|
|
u32 reserved4;
|
|
u32 login_ID_misc;
|
|
u32 reserved5;
|
|
u32 status_fifo_hi;
|
|
u32 status_fifo_lo;
|
|
} __attribute__((packed));
|
|
|
|
struct sbp2_unrestricted_page_table {
|
|
__be32 high;
|
|
__be32 low;
|
|
};
|
|
|
|
#define RESP_STATUS_REQUEST_COMPLETE 0x0
|
|
#define RESP_STATUS_TRANSPORT_FAILURE 0x1
|
|
#define RESP_STATUS_ILLEGAL_REQUEST 0x2
|
|
#define RESP_STATUS_VENDOR_DEPENDENT 0x3
|
|
|
|
#define SBP2_STATUS_NO_ADDITIONAL_INFO 0x0
|
|
#define SBP2_STATUS_REQ_TYPE_NOT_SUPPORTED 0x1
|
|
#define SBP2_STATUS_SPEED_NOT_SUPPORTED 0x2
|
|
#define SBP2_STATUS_PAGE_SIZE_NOT_SUPPORTED 0x3
|
|
#define SBP2_STATUS_ACCESS_DENIED 0x4
|
|
#define SBP2_STATUS_LU_NOT_SUPPORTED 0x5
|
|
#define SBP2_STATUS_MAX_PAYLOAD_TOO_SMALL 0x6
|
|
#define SBP2_STATUS_RESOURCES_UNAVAILABLE 0x8
|
|
#define SBP2_STATUS_FUNCTION_REJECTED 0x9
|
|
#define SBP2_STATUS_LOGIN_ID_NOT_RECOGNIZED 0xa
|
|
#define SBP2_STATUS_DUMMY_ORB_COMPLETED 0xb
|
|
#define SBP2_STATUS_REQUEST_ABORTED 0xc
|
|
#define SBP2_STATUS_UNSPECIFIED_ERROR 0xff
|
|
|
|
#define SFMT_CURRENT_ERROR 0x0
|
|
#define SFMT_DEFERRED_ERROR 0x1
|
|
#define SFMT_VENDOR_DEPENDENT_STATUS 0x3
|
|
|
|
#define STATUS_GET_SRC(v) (((v) >> 30) & 0x3)
|
|
#define STATUS_GET_RESP(v) (((v) >> 28) & 0x3)
|
|
#define STATUS_GET_LEN(v) (((v) >> 24) & 0x7)
|
|
#define STATUS_GET_SBP_STATUS(v) (((v) >> 16) & 0xff)
|
|
#define STATUS_GET_ORB_OFFSET_HI(v) ((v) & 0x0000ffff)
|
|
#define STATUS_TEST_DEAD(v) ((v) & 0x08000000)
|
|
/* test 'resp' | 'dead' | 'sbp2_status' */
|
|
#define STATUS_TEST_RDS(v) ((v) & 0x38ff0000)
|
|
|
|
struct sbp2_status_block {
|
|
u32 ORB_offset_hi_misc;
|
|
u32 ORB_offset_lo;
|
|
u8 command_set_dependent[24];
|
|
} __attribute__((packed));
|
|
|
|
|
|
/*
|
|
* SBP2 related configuration ROM definitions
|
|
*/
|
|
|
|
#define SBP2_UNIT_DIRECTORY_OFFSET_KEY 0xd1
|
|
#define SBP2_CSR_OFFSET_KEY 0x54
|
|
#define SBP2_UNIT_SPEC_ID_KEY 0x12
|
|
#define SBP2_UNIT_SW_VERSION_KEY 0x13
|
|
#define SBP2_COMMAND_SET_SPEC_ID_KEY 0x38
|
|
#define SBP2_COMMAND_SET_KEY 0x39
|
|
#define SBP2_UNIT_CHARACTERISTICS_KEY 0x3a
|
|
#define SBP2_DEVICE_TYPE_AND_LUN_KEY 0x14
|
|
#define SBP2_FIRMWARE_REVISION_KEY 0x3c
|
|
|
|
#define SBP2_AGENT_STATE_OFFSET 0x00ULL
|
|
#define SBP2_AGENT_RESET_OFFSET 0x04ULL
|
|
#define SBP2_ORB_POINTER_OFFSET 0x08ULL
|
|
#define SBP2_DOORBELL_OFFSET 0x10ULL
|
|
#define SBP2_UNSOLICITED_STATUS_ENABLE_OFFSET 0x14ULL
|
|
#define SBP2_UNSOLICITED_STATUS_VALUE 0xf
|
|
|
|
#define SBP2_BUSY_TIMEOUT_ADDRESS 0xfffff0000210ULL
|
|
/* biggest possible value for Single Phase Retry count is 0xf */
|
|
#define SBP2_BUSY_TIMEOUT_VALUE 0xf
|
|
|
|
#define SBP2_AGENT_RESET_DATA 0xf
|
|
|
|
#define SBP2_UNIT_SPEC_ID_ENTRY 0x0000609e
|
|
#define SBP2_SW_VERSION_ENTRY 0x00010483
|
|
|
|
/*
|
|
* The default maximum s/g segment size of a FireWire controller is
|
|
* usually 0x10000, but SBP-2 only allows 0xffff. Since buffers have to
|
|
* be quadlet-aligned, we set the length limit to 0xffff & ~3.
|
|
*/
|
|
#define SBP2_MAX_SEG_SIZE 0xfffc
|
|
|
|
/*
|
|
* There is no real limitation of the queue depth (i.e. length of the linked
|
|
* list of command ORBs) at the target. The chosen depth is merely an
|
|
* implementation detail of the sbp2 driver.
|
|
*/
|
|
#define SBP2_MAX_CMDS 8
|
|
|
|
#define SBP2_SCSI_STATUS_GOOD 0x0
|
|
#define SBP2_SCSI_STATUS_CHECK_CONDITION 0x2
|
|
#define SBP2_SCSI_STATUS_CONDITION_MET 0x4
|
|
#define SBP2_SCSI_STATUS_BUSY 0x8
|
|
#define SBP2_SCSI_STATUS_RESERVATION_CONFLICT 0x18
|
|
#define SBP2_SCSI_STATUS_COMMAND_TERMINATED 0x22
|
|
#define SBP2_SCSI_STATUS_SELECTION_TIMEOUT 0xff
|
|
|
|
|
|
/*
|
|
* Representations of commands and devices
|
|
*/
|
|
|
|
/* Per SCSI command */
|
|
struct sbp2_command_info {
|
|
struct list_head list;
|
|
struct sbp2_command_orb command_orb;
|
|
dma_addr_t command_orb_dma;
|
|
struct scsi_cmnd *Current_SCpnt;
|
|
void (*Current_done)(struct scsi_cmnd *);
|
|
|
|
/* Also need s/g structure for each sbp2 command */
|
|
struct sbp2_unrestricted_page_table
|
|
scatter_gather_element[SG_ALL] __attribute__((aligned(8)));
|
|
dma_addr_t sge_dma;
|
|
};
|
|
|
|
/* Per FireWire host */
|
|
struct sbp2_fwhost_info {
|
|
struct hpsb_host *host;
|
|
struct list_head logical_units;
|
|
};
|
|
|
|
/* Per logical unit */
|
|
struct sbp2_lu {
|
|
/* Operation request blocks */
|
|
struct sbp2_command_orb *last_orb;
|
|
dma_addr_t last_orb_dma;
|
|
struct sbp2_login_orb *login_orb;
|
|
dma_addr_t login_orb_dma;
|
|
struct sbp2_login_response *login_response;
|
|
dma_addr_t login_response_dma;
|
|
struct sbp2_query_logins_orb *query_logins_orb;
|
|
dma_addr_t query_logins_orb_dma;
|
|
struct sbp2_query_logins_response *query_logins_response;
|
|
dma_addr_t query_logins_response_dma;
|
|
struct sbp2_reconnect_orb *reconnect_orb;
|
|
dma_addr_t reconnect_orb_dma;
|
|
struct sbp2_logout_orb *logout_orb;
|
|
dma_addr_t logout_orb_dma;
|
|
struct sbp2_status_block status_block;
|
|
|
|
/* How to talk to the unit */
|
|
u64 management_agent_addr;
|
|
u64 command_block_agent_addr;
|
|
u32 speed_code;
|
|
u32 max_payload_size;
|
|
u16 lun;
|
|
|
|
/* Address for the unit to write status blocks to */
|
|
u64 status_fifo_addr;
|
|
|
|
/* Waitqueue flag for logins, reconnects, logouts, query logins */
|
|
unsigned int access_complete:1;
|
|
|
|
/* Pool of command ORBs for this logical unit */
|
|
spinlock_t cmd_orb_lock;
|
|
struct list_head cmd_orb_inuse;
|
|
struct list_head cmd_orb_completed;
|
|
|
|
/* Backlink to FireWire host; list of units attached to the host */
|
|
struct sbp2_fwhost_info *hi;
|
|
struct list_head lu_list;
|
|
|
|
/* IEEE 1394 core's device representations */
|
|
struct node_entry *ne;
|
|
struct unit_directory *ud;
|
|
|
|
/* SCSI core's device representations */
|
|
struct scsi_device *sdev;
|
|
struct Scsi_Host *shost;
|
|
|
|
/* Device specific workarounds/brokeness */
|
|
unsigned workarounds;
|
|
|
|
/* Connection state */
|
|
atomic_t state;
|
|
|
|
/* For deferred requests to the fetch agent */
|
|
struct work_struct protocol_work;
|
|
};
|
|
|
|
/* For use in sbp2_lu.state */
|
|
enum sbp2lu_state_types {
|
|
SBP2LU_STATE_RUNNING, /* all normal */
|
|
SBP2LU_STATE_IN_RESET, /* between bus reset and reconnect */
|
|
SBP2LU_STATE_IN_SHUTDOWN /* when sbp2_remove was called */
|
|
};
|
|
|
|
/* For use in sbp2_lu.workarounds and in the corresponding
|
|
* module load parameter */
|
|
#define SBP2_WORKAROUND_128K_MAX_TRANS 0x1
|
|
#define SBP2_WORKAROUND_INQUIRY_36 0x2
|
|
#define SBP2_WORKAROUND_MODE_SENSE_8 0x4
|
|
#define SBP2_WORKAROUND_FIX_CAPACITY 0x8
|
|
#define SBP2_WORKAROUND_DELAY_INQUIRY 0x10
|
|
#define SBP2_INQUIRY_DELAY 12
|
|
#define SBP2_WORKAROUND_POWER_CONDITION 0x20
|
|
#define SBP2_WORKAROUND_OVERRIDE 0x100
|
|
|
|
#endif /* SBP2_H */
|
|
|