427 lines
14 KiB
C
427 lines
14 KiB
C
/*
|
|
* 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"
|
|
|
|
/*
|
|
* SBP2 specific structures and defines
|
|
*/
|
|
|
|
#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(value) ((value & 0x1) << 31)
|
|
#define ORB_SET_NOTIFY(value) ((value & 0x1) << 31)
|
|
#define ORB_SET_RQ_FMT(value) ((value & 0x3) << 29) /* unused ? */
|
|
#define ORB_SET_NODE_ID(value) ((value & 0xffff) << 16)
|
|
#define ORB_SET_DATA_SIZE(value) (value & 0xffff)
|
|
#define ORB_SET_PAGE_SIZE(value) ((value & 0x7) << 16)
|
|
#define ORB_SET_PAGE_TABLE_PRESENT(value) ((value & 0x1) << 19)
|
|
#define ORB_SET_MAX_PAYLOAD(value) ((value & 0xf) << 20)
|
|
#define ORB_SET_SPEED(value) ((value & 0x7) << 24)
|
|
#define ORB_SET_DIRECTION(value) ((value & 0x1) << 27)
|
|
|
|
struct sbp2_command_orb {
|
|
volatile u32 next_ORB_hi;
|
|
volatile u32 next_ORB_lo;
|
|
u32 data_descriptor_hi;
|
|
u32 data_descriptor_lo;
|
|
u32 misc;
|
|
u8 cdb[12];
|
|
};
|
|
|
|
#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(value) (value & 0xffff)
|
|
#define ORB_SET_FUNCTION(value) ((value & 0xf) << 16)
|
|
#define ORB_SET_RECONNECT(value) ((value & 0xf) << 20)
|
|
#define ORB_SET_EXCLUSIVE(value) ((value & 0x1) << 28)
|
|
#define ORB_SET_LOGIN_RESP_LENGTH(value) (value & 0xffff)
|
|
#define ORB_SET_PASSWD_LENGTH(value) ((value & 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;
|
|
};
|
|
|
|
#define RESPONSE_GET_LOGIN_ID(value) (value & 0xffff)
|
|
#define RESPONSE_GET_LENGTH(value) ((value >> 16) & 0xffff)
|
|
#define RESPONSE_GET_RECONNECT_HOLD(value) (value & 0xffff)
|
|
|
|
struct sbp2_login_response {
|
|
u32 length_login_ID;
|
|
u32 command_block_agent_hi;
|
|
u32 command_block_agent_lo;
|
|
u32 reconnect_hold;
|
|
};
|
|
|
|
#define ORB_SET_LOGIN_ID(value) (value & 0xffff)
|
|
|
|
#define ORB_SET_QUERY_LOGINS_RESP_LENGTH(value) (value & 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;
|
|
};
|
|
|
|
#define RESPONSE_GET_MAX_LOGINS(value) (value & 0xffff)
|
|
#define RESPONSE_GET_ACTIVE_LOGINS(value) ((RESPONSE_GET_LENGTH(value) - 4) / 12)
|
|
|
|
struct sbp2_query_logins_response {
|
|
u32 length_max_logins;
|
|
u32 misc_IDs;
|
|
u32 initiator_misc_hi;
|
|
u32 initiator_misc_lo;
|
|
};
|
|
|
|
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;
|
|
};
|
|
|
|
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;
|
|
};
|
|
|
|
#define PAGE_TABLE_SET_SEGMENT_BASE_HI(value) (value & 0xffff)
|
|
#define PAGE_TABLE_SET_SEGMENT_LENGTH(value) ((value & 0xffff) << 16)
|
|
|
|
struct sbp2_unrestricted_page_table {
|
|
u32 length_segment_base_hi;
|
|
u32 segment_base_lo;
|
|
};
|
|
|
|
#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 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
|
|
|
|
#define STATUS_GET_ORB_OFFSET_HI(value) (value & 0xffff)
|
|
#define STATUS_GET_SBP_STATUS(value) ((value >> 16) & 0xff)
|
|
#define STATUS_GET_LENGTH(value) ((value >> 24) & 0x7)
|
|
#define STATUS_GET_DEAD_BIT(value) ((value >> 27) & 0x1)
|
|
#define STATUS_GET_RESP(value) ((value >> 28) & 0x3)
|
|
#define STATUS_GET_SRC(value) ((value >> 30) & 0x3)
|
|
|
|
struct sbp2_status_block {
|
|
u32 ORB_offset_hi_misc;
|
|
u32 ORB_offset_lo;
|
|
u8 command_set_dependent[24];
|
|
};
|
|
|
|
/*
|
|
* Miscellaneous SBP2 related config rom defines
|
|
*/
|
|
|
|
/* The status fifo address definition below is used as a base for each
|
|
* node, which a chunk seperately assigned to each unit directory in the
|
|
* node. For example, 0xfffe00000000ULL is used for the first sbp2 device
|
|
* detected on node 0, 0xfffe00000020ULL for the next sbp2 device on node
|
|
* 0, and so on.
|
|
*
|
|
* Note: We could use a single status fifo address for all sbp2 devices,
|
|
* and figure out which sbp2 device the status belongs to by looking at
|
|
* the source node id of the status write... but, using separate addresses
|
|
* for each sbp2 unit directory allows for better code and the ability to
|
|
* support multiple luns within a single 1394 node.
|
|
*
|
|
* Also note that we choose the address range below as it is a region
|
|
* specified for write posting, where the ohci controller will
|
|
* automatically send an ack_complete when the status is written by the
|
|
* sbp2 device... saving a split transaction. =)
|
|
*/
|
|
#define SBP2_STATUS_FIFO_ADDRESS 0xfffe00000000ULL
|
|
#define SBP2_STATUS_FIFO_ADDRESS_HI 0xfffe
|
|
#define SBP2_STATUS_FIFO_ADDRESS_LO 0x0
|
|
|
|
#define SBP2_STATUS_FIFO_ENTRY_TO_OFFSET(entry) ((entry) << 5)
|
|
#define SBP2_STATUS_FIFO_OFFSET_TO_ENTRY(offset) ((offset) >> 5)
|
|
|
|
#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
|
|
#define SBP2_BUSY_TIMEOUT_VALUE 0xf
|
|
|
|
#define SBP2_AGENT_RESET_DATA 0xf
|
|
|
|
/*
|
|
* Unit spec id and sw version entry for SBP-2 devices
|
|
*/
|
|
|
|
#define SBP2_UNIT_SPEC_ID_ENTRY 0x0000609e
|
|
#define SBP2_SW_VERSION_ENTRY 0x00010483
|
|
|
|
/*
|
|
* Other misc defines
|
|
*/
|
|
#define SBP2_128KB_BROKEN_FIRMWARE 0xa0b800
|
|
|
|
/*
|
|
* SCSI specific stuff
|
|
*/
|
|
|
|
#define SBP2_MAX_SG_ELEMENT_LENGTH 0xf000
|
|
#define SBP2_MAX_UDS_PER_NODE 16 /* Maximum scsi devices per node */
|
|
#define SBP2_MAX_SECTORS 255 /* Max sectors supported */
|
|
#define SBP2_MAX_CMDS 8 /* This should be safe */
|
|
|
|
/* This is the two dma types we use for cmd_dma below */
|
|
enum cmd_dma_types {
|
|
CMD_DMA_NONE,
|
|
CMD_DMA_PAGE,
|
|
CMD_DMA_SINGLE
|
|
};
|
|
|
|
/*
|
|
* Encapsulates all the info necessary for an outstanding command.
|
|
*/
|
|
struct sbp2_command_info {
|
|
|
|
struct list_head list;
|
|
struct sbp2_command_orb command_orb ____cacheline_aligned;
|
|
dma_addr_t command_orb_dma ____cacheline_aligned;
|
|
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] ____cacheline_aligned;
|
|
dma_addr_t sge_dma ____cacheline_aligned;
|
|
void *sge_buffer;
|
|
dma_addr_t cmd_dma;
|
|
enum cmd_dma_types dma_type;
|
|
unsigned long dma_size;
|
|
int dma_dir;
|
|
|
|
};
|
|
|
|
/* A list of flags for detected oddities and brokeness. */
|
|
#define SBP2_BREAKAGE_128K_MAX_TRANSFER 0x1
|
|
#define SBP2_BREAKAGE_INQUIRY_HACK 0x2
|
|
|
|
struct sbp2scsi_host_info;
|
|
|
|
/*
|
|
* Information needed on a per scsi id basis (one for each sbp2 device)
|
|
*/
|
|
struct scsi_id_instance_data {
|
|
/*
|
|
* Various sbp2 specific structures
|
|
*/
|
|
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;
|
|
|
|
/*
|
|
* Stuff we need to know about the sbp2 device itself
|
|
*/
|
|
u64 sbp2_management_agent_addr;
|
|
u64 sbp2_command_block_agent_addr;
|
|
u32 speed_code;
|
|
u32 max_payload_size;
|
|
|
|
/*
|
|
* Values pulled from the device's unit directory
|
|
*/
|
|
u32 sbp2_command_set_spec_id;
|
|
u32 sbp2_command_set;
|
|
u32 sbp2_unit_characteristics;
|
|
u32 sbp2_lun;
|
|
u32 sbp2_firmware_revision;
|
|
|
|
/*
|
|
* Variable used for logins, reconnects, logouts, query logins
|
|
*/
|
|
atomic_t sbp2_login_complete;
|
|
|
|
/*
|
|
* Pool of command orbs, so we can have more than overlapped command per id
|
|
*/
|
|
spinlock_t sbp2_command_orb_lock;
|
|
struct list_head sbp2_command_orb_inuse;
|
|
struct list_head sbp2_command_orb_completed;
|
|
|
|
struct list_head scsi_list;
|
|
|
|
/* Node entry, as retrieved from NodeMgr entries */
|
|
struct node_entry *ne;
|
|
struct unit_directory *ud;
|
|
|
|
/* A backlink to our host_info */
|
|
struct sbp2scsi_host_info *hi;
|
|
|
|
/* SCSI related pointers */
|
|
struct scsi_device *sdev;
|
|
struct Scsi_Host *scsi_host;
|
|
|
|
/* Device specific workarounds/brokeness */
|
|
u32 workarounds;
|
|
};
|
|
|
|
/* Sbp2 host data structure (one per IEEE1394 host) */
|
|
struct sbp2scsi_host_info {
|
|
struct hpsb_host *host; /* IEEE1394 host */
|
|
struct list_head scsi_ids; /* List of scsi ids on this host */
|
|
};
|
|
|
|
/*
|
|
* Function prototypes
|
|
*/
|
|
|
|
/*
|
|
* Various utility prototypes
|
|
*/
|
|
static int sbp2util_create_command_orb_pool(struct scsi_id_instance_data *scsi_id);
|
|
static void sbp2util_remove_command_orb_pool(struct scsi_id_instance_data *scsi_id);
|
|
static struct sbp2_command_info *sbp2util_find_command_for_orb(struct scsi_id_instance_data *scsi_id, dma_addr_t orb);
|
|
static struct sbp2_command_info *sbp2util_find_command_for_SCpnt(struct scsi_id_instance_data *scsi_id, void *SCpnt);
|
|
static struct sbp2_command_info *sbp2util_allocate_command_orb(struct scsi_id_instance_data *scsi_id,
|
|
struct scsi_cmnd *Current_SCpnt,
|
|
void (*Current_done)(struct scsi_cmnd *));
|
|
static void sbp2util_mark_command_completed(struct scsi_id_instance_data *scsi_id,
|
|
struct sbp2_command_info *command);
|
|
|
|
|
|
static int sbp2_start_device(struct scsi_id_instance_data *scsi_id);
|
|
static void sbp2_remove_device(struct scsi_id_instance_data *scsi_id);
|
|
|
|
#ifdef CONFIG_IEEE1394_SBP2_PHYS_DMA
|
|
static int sbp2_handle_physdma_write(struct hpsb_host *host, int nodeid, int destid, quadlet_t *data,
|
|
u64 addr, size_t length, u16 flags);
|
|
static int sbp2_handle_physdma_read(struct hpsb_host *host, int nodeid, quadlet_t *data,
|
|
u64 addr, size_t length, u16 flags);
|
|
#endif
|
|
|
|
/*
|
|
* SBP-2 protocol related prototypes
|
|
*/
|
|
static int sbp2_query_logins(struct scsi_id_instance_data *scsi_id);
|
|
static int sbp2_login_device(struct scsi_id_instance_data *scsi_id);
|
|
static int sbp2_reconnect_device(struct scsi_id_instance_data *scsi_id);
|
|
static int sbp2_logout_device(struct scsi_id_instance_data *scsi_id);
|
|
static int sbp2_handle_status_write(struct hpsb_host *host, int nodeid, int destid,
|
|
quadlet_t *data, u64 addr, size_t length, u16 flags);
|
|
static int sbp2_agent_reset(struct scsi_id_instance_data *scsi_id, int wait);
|
|
static int sbp2_link_orb_command(struct scsi_id_instance_data *scsi_id,
|
|
struct sbp2_command_info *command);
|
|
static int sbp2_send_command(struct scsi_id_instance_data *scsi_id,
|
|
struct scsi_cmnd *SCpnt,
|
|
void (*done)(struct scsi_cmnd *));
|
|
static unsigned int sbp2_status_to_sense_data(unchar *sbp2_status, unchar *sense_data);
|
|
static void sbp2_check_sbp2_response(struct scsi_id_instance_data *scsi_id,
|
|
struct scsi_cmnd *SCpnt);
|
|
static void sbp2_parse_unit_directory(struct scsi_id_instance_data *scsi_id,
|
|
struct unit_directory *ud);
|
|
static int sbp2_set_busy_timeout(struct scsi_id_instance_data *scsi_id);
|
|
static int sbp2_max_speed_and_size(struct scsi_id_instance_data *scsi_id);
|
|
|
|
#endif /* SBP2_H */
|