#define SBP2_DEVICE_NAME "sbp2"
/*
- * SBP2 specific structures and defines
+ * 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
-#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)
+/*
+ * 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 {
- volatile u32 next_ORB_hi;
- volatile u32 next_ORB_lo;
+ u32 next_ORB_hi;
+ u32 next_ORB_lo;
u32 data_descriptor_hi;
u32 data_descriptor_lo;
u32 misc;
- u8 cdb[12];
-};
+ u8 cdb[SBP2_MAX_CDB_SIZE];
+} __attribute__((packed));
#define SBP2_LOGIN_REQUEST 0x0
#define SBP2_QUERY_LOGINS_REQUEST 0x1
#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)
+#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 login_response_lo;
u32 lun_misc;
u32 passwd_resp_lengths;
- u32 status_FIFO_hi;
- u32 status_FIFO_lo;
-};
+ u32 status_fifo_hi;
+ u32 status_fifo_lo;
+} __attribute__((packed));
-#define RESPONSE_GET_LOGIN_ID(value) (value & 0xffff)
-#define RESPONSE_GET_LENGTH(value) ((value >> 16) & 0xffff)
-#define RESPONSE_GET_RECONNECT_HOLD(value) (value & 0xffff)
+#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;
-};
-
-#define ORB_SET_LOGIN_ID(value) (value & 0xffff)
+} __attribute__((packed));
-#define ORB_SET_QUERY_LOGINS_RESP_LENGTH(value) (value & 0xffff)
+#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 query_response_lo;
u32 lun_misc;
u32 reserved_resp_length;
- u32 status_FIFO_hi;
- u32 status_FIFO_lo;
-};
+ u32 status_fifo_hi;
+ u32 status_fifo_lo;
+} __attribute__((packed));
-#define RESPONSE_GET_MAX_LOGINS(value) (value & 0xffff)
-#define RESPONSE_GET_ACTIVE_LOGINS(value) ((RESPONSE_GET_LENGTH(value) - 4) / 12)
+#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 reserved3;
+ u32 reserved4;
u32 login_ID_misc;
u32 reserved5;
- u32 status_FIFO_hi;
- u32 status_FIFO_lo;
-};
+ u32 status_fifo_hi;
+ u32 status_fifo_lo;
+} __attribute__((packed));
struct sbp2_logout_orb {
u32 reserved1;
u32 reserved2;
- u32 reserved3;
- u32 reserved4;
+ 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)
+ u32 status_fifo_hi;
+ u32 status_fifo_lo;
+} __attribute__((packed));
struct sbp2_unrestricted_page_table {
- u32 length_segment_base_hi;
- u32 segment_base_lo;
+ __be32 high;
+ __be32 low;
};
#define RESP_STATUS_REQUEST_COMPLETE 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)
+#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];
-};
+ u8 command_set_dependent[24];
+} __attribute__((packed));
+
/*
- * Miscellaneous SBP2 related config rom defines
+ * SBP2 related configuration ROM definitions
*/
-/* 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
+#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
-/*
- * Unit spec id and sw version entry for SBP-2 devices
- */
+#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_UNIT_SPEC_ID_ENTRY 0x0000609e
-#define SBP2_SW_VERSION_ENTRY 0x00010483
+#define SBP2_BUSY_TIMEOUT_ADDRESS 0xfffff0000210ULL
+/* biggest possible value for Single Phase Retry count is 0xf */
+#define SBP2_BUSY_TIMEOUT_VALUE 0xf
-/*
- * Other misc defines
- */
-#define SBP2_128KB_BROKEN_FIRMWARE 0xa0b800
+#define SBP2_AGENT_RESET_DATA 0xf
+
+#define SBP2_UNIT_SPEC_ID_ENTRY 0x0000609e
+#define SBP2_SW_VERSION_ENTRY 0x00010483
/*
- * SCSI specific stuff
+ * 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_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_SEG_SIZE 0xfffc
/*
- * SCSI direction table...
- * (now used as a back-up in case the direction passed down from above is "unknown")
- *
- * DIN = IN data direction
- * DOU = OUT data direction
- * DNO = No data transfer
- * DUN = Unknown data direction
- *
- * Opcode 0xec (Teac specific "opc execute") possibly should be DNO,
- * but we'll change it when somebody reports a problem with this.
+ * 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 DIN ORB_DIRECTION_READ_FROM_MEDIA
-#define DOU ORB_DIRECTION_WRITE_TO_MEDIA
-#define DNO ORB_DIRECTION_NO_DATA_TRANSFER
-#define DUN DIN
-
-static unchar sbp2scsi_direction_table[0x100] = {
- DNO,DNO,DIN,DIN,DOU,DIN,DIN,DOU,DIN,DUN,DOU,DOU,DUN,DUN,DUN,DIN,
- DNO,DIN,DIN,DOU,DIN,DOU,DNO,DNO,DOU,DNO,DIN,DNO,DIN,DOU,DNO,DUN,
- DIN,DUN,DIN,DIN,DOU,DIN,DUN,DUN,DIN,DIN,DOU,DNO,DUN,DIN,DOU,DOU,
- DOU,DOU,DOU,DNO,DIN,DNO,DNO,DIN,DOU,DOU,DOU,DOU,DIN,DOU,DIN,DOU,
- DOU,DOU,DIN,DIN,DIN,DNO,DIN,DNO,DNO,DNO,DUN,DNO,DOU,DIN,DNO,DUN,
- DUN,DIN,DIN,DNO,DNO,DOU,DUN,DUN,DNO,DIN,DIN,DNO,DIN,DOU,DUN,DUN,
- DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
- DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
- DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
- DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
- DUN,DNO,DOU,DOU,DIN,DNO,DNO,DNO,DIN,DNO,DOU,DUN,DNO,DIN,DOU,DOU,
- DOU,DOU,DOU,DNO,DUN,DIN,DOU,DIN,DIN,DIN,DNO,DNO,DNO,DIN,DIN,DUN,
- DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
- DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
- DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,
- DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN
-};
+#define SBP2_MAX_CMDS 8
-/* This should be safe */
-#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
-/* 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.
+ * Representations of commands and devices
*/
-struct sbp2_command_info {
+/* Per SCSI 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 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] ____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;
-
+ struct sbp2_unrestricted_page_table
+ scatter_gather_element[SG_ALL] __attribute__((aligned(8)));
+ dma_addr_t sge_dma;
};
-/* 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;
-
+/* Per FireWire host */
+struct sbp2_fwhost_info {
+ struct hpsb_host *host;
+ struct list_head logical_units;
+};
-/*
- * Information needed on a per scsi id basis (one for each sbp2 device)
- */
-struct scsi_id_instance_data {
- /*
- * Various sbp2 specific structures
- */
+/* 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 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;
+ /* 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;
- /*
- * 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 */
+ /* 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;
- /* A backlink to our host_info */
- struct sbp2scsi_host_info *hi;
-
- /* SCSI related pointers */
+ /* SCSI core's device representations */
struct scsi_device *sdev;
- struct Scsi_Host *scsi_host;
+ struct Scsi_Host *shost;
/* Device specific workarounds/brokeness */
- u32 workarounds;
-};
+ unsigned workarounds;
+ /* Connection state */
+ atomic_t state;
-/* 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 */
+ /* For deferred requests to the fetch agent */
+ struct work_struct protocol_work;
};
-/*
- * 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
+/* 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 */
+};
-/*
- * 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_create_command_orb(struct scsi_id_instance_data *scsi_id,
- struct sbp2_command_info *command,
- unchar *scsi_cmd,
- unsigned int scsi_use_sg,
- unsigned int scsi_request_bufflen,
- void *scsi_request_buffer,
- enum dma_data_direction dma_dir);
-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);
+/* 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 */
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