#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
*/
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 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) & 0x1) << 28)
+#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)
u32 status_fifo_lo;
} __attribute__((packed));
-#define PAGE_TABLE_SET_SEGMENT_BASE_HI(v) ((v) & 0xffff)
-#define PAGE_TABLE_SET_SEGMENT_LENGTH(v) (((v) & 0xffff) << 16)
-
struct sbp2_unrestricted_page_table {
- u32 length_segment_base_hi;
- u32 segment_base_lo;
-} __attribute__((packed));
+ __be32 high;
+ __be32 low;
+};
#define RESP_STATUS_REQUEST_COMPLETE 0x0
#define RESP_STATUS_TRANSPORT_FAILURE 0x1
#define SBP2_UNIT_SPEC_ID_ENTRY 0x0000609e
#define SBP2_SW_VERSION_ENTRY 0x00010483
-
/*
- * SCSI specific definitions
+ * 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
-#define SBP2_MAX_SG_ELEMENT_LENGTH 0xf000
-#define SBP2_MAX_SECTORS 255
-/* There is no real limitation of the queue depth (i.e. length of the linked
+/*
+ * 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. */
+ * implementation detail of the sbp2 driver.
+ */
#define SBP2_MAX_CMDS 8
#define SBP2_SCSI_STATUS_GOOD 0x0
* Representations of commands and devices
*/
-enum sbp2_dma_types {
- CMD_DMA_NONE,
- CMD_DMA_PAGE,
- CMD_DMA_SINGLE
-};
-
/* 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 sbp2_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;
};
/* Per FireWire host */
struct sbp2_fwhost_info {
struct hpsb_host *host;
- struct list_head scsi_ids;
+ struct list_head logical_units;
};
/* Per logical unit */
-struct scsi_id_instance_data {
+struct sbp2_lu {
/* Operation request blocks */
struct sbp2_command_orb *last_orb;
dma_addr_t last_orb_dma;
u64 command_block_agent_addr;
u32 speed_code;
u32 max_payload_size;
-
- /* Pulled from the device's unit directory */
- u32 command_set_spec_id;
- u32 command_set;
- u32 unit_characteristics;
- u32 firmware_revision;
u16 lun;
/* Address for the unit to write status blocks to */
u64 status_fifo_addr;
/* Waitqueue flag for logins, reconnects, logouts, query logins */
- int access_complete:1;
+ unsigned int access_complete:1;
/* Pool of command ORBs for this logical unit */
spinlock_t cmd_orb_lock;
/* Backlink to FireWire host; list of units attached to the host */
struct sbp2_fwhost_info *hi;
- struct list_head scsi_list;
+ struct list_head lu_list;
/* IEEE 1394 core's device representations */
struct node_entry *ne;
/* SCSI core's device representations */
struct scsi_device *sdev;
- struct Scsi_Host *scsi_host;
+ struct Scsi_Host *shost;
/* Device specific workarounds/brokeness */
unsigned workarounds;
struct work_struct protocol_work;
};
-/* For use in scsi_id_instance_data.state */
+/* 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 scsi_id_instance_data.workarounds and in the corresponding
+/* 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 */