Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 1 | #ifndef BSG_H |
| 2 | #define BSG_H |
| 3 | |
FUJITA Tomonori | 15d10b6 | 2007-07-16 08:52:16 +0200 | [diff] [blame] | 4 | #define BSG_PROTOCOL_SCSI 0 |
| 5 | |
| 6 | #define BSG_SUB_PROTOCOL_SCSI_CMD 0 |
| 7 | #define BSG_SUB_PROTOCOL_SCSI_TMF 1 |
| 8 | #define BSG_SUB_PROTOCOL_SCSI_TRANSPORT 2 |
| 9 | |
FUJITA Tomonori | 45977d0e | 2006-12-20 11:19:32 +0100 | [diff] [blame] | 10 | struct sg_io_v4 { |
FUJITA Tomonori | 3862153 | 2006-12-22 09:43:51 +0100 | [diff] [blame] | 11 | __s32 guard; /* [i] 'Q' to differentiate from v3 */ |
| 12 | __u32 protocol; /* [i] 0 -> SCSI , .... */ |
| 13 | __u32 subprotocol; /* [i] 0 -> SCSI command, 1 -> SCSI task |
FUJITA Tomonori | 45977d0e | 2006-12-20 11:19:32 +0100 | [diff] [blame] | 14 | management function, .... */ |
| 15 | |
FUJITA Tomonori | 3862153 | 2006-12-22 09:43:51 +0100 | [diff] [blame] | 16 | __u32 request_len; /* [i] in bytes */ |
| 17 | __u64 request; /* [i], [*i] {SCSI: cdb} */ |
| 18 | __u32 request_attr; /* [i] {SCSI: task attribute} */ |
| 19 | __u32 request_tag; /* [i] {SCSI: task tag (only if flagged)} */ |
| 20 | __u32 request_priority; /* [i] {SCSI: task priority} */ |
| 21 | __u32 max_response_len; /* [i] in bytes */ |
| 22 | __u64 response; /* [i], [*o] {SCSI: (auto)sense data} */ |
FUJITA Tomonori | 45977d0e | 2006-12-20 11:19:32 +0100 | [diff] [blame] | 23 | |
| 24 | /* "din_" for data in (from device); "dout_" for data out (to device) */ |
FUJITA Tomonori | 3862153 | 2006-12-22 09:43:51 +0100 | [diff] [blame] | 25 | __u32 dout_xfer_len; /* [i] bytes to be transferred to device */ |
| 26 | __u32 din_xfer_len; /* [i] bytes to be transferred from device */ |
| 27 | __u64 dout_xferp; /* [i], [*i] */ |
| 28 | __u64 din_xferp; /* [i], [*o] */ |
FUJITA Tomonori | 45977d0e | 2006-12-20 11:19:32 +0100 | [diff] [blame] | 29 | |
FUJITA Tomonori | 3862153 | 2006-12-22 09:43:51 +0100 | [diff] [blame] | 30 | __u32 timeout; /* [i] units: millisecond */ |
| 31 | __u32 flags; /* [i] bit mask */ |
| 32 | __u64 usr_ptr; /* [i->o] unused internally */ |
| 33 | __u32 spare_in; /* [i] */ |
FUJITA Tomonori | 45977d0e | 2006-12-20 11:19:32 +0100 | [diff] [blame] | 34 | |
FUJITA Tomonori | 3862153 | 2006-12-22 09:43:51 +0100 | [diff] [blame] | 35 | __u32 driver_status; /* [o] 0 -> ok */ |
| 36 | __u32 transport_status; /* [o] 0 -> ok */ |
| 37 | __u32 device_status; /* [o] {SCSI: command completion status} */ |
| 38 | __u32 retry_delay; /* [o] {SCSI: status auxiliary information} */ |
| 39 | __u32 info; /* [o] additional information */ |
| 40 | __u32 duration; /* [o] time to complete, in milliseconds */ |
| 41 | __u32 response_len; /* [o] bytes of response actually written */ |
| 42 | __s32 din_resid; /* [o] actual_din_xfer_len - din_xfer_len */ |
| 43 | __u32 generated_tag; /* [o] {SCSI: task tag that transport chose} */ |
| 44 | __u32 spare_out; /* [o] */ |
FUJITA Tomonori | 45977d0e | 2006-12-20 11:19:32 +0100 | [diff] [blame] | 45 | |
FUJITA Tomonori | 3862153 | 2006-12-22 09:43:51 +0100 | [diff] [blame] | 46 | __u32 padding; |
FUJITA Tomonori | 45977d0e | 2006-12-20 11:19:32 +0100 | [diff] [blame] | 47 | }; |
| 48 | |
| 49 | #ifdef __KERNEL__ |
| 50 | |
Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 51 | #if defined(CONFIG_BLK_DEV_BSG) |
| 52 | struct bsg_class_device { |
| 53 | struct class_device *class_dev; |
| 54 | struct device *dev; |
| 55 | int minor; |
Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 56 | struct list_head list; |
FUJITA Tomonori | d351af0 | 2007-07-09 12:40:35 +0200 | [diff] [blame] | 57 | struct request_queue *queue; |
Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 58 | }; |
| 59 | |
James Bottomley | 39dca55 | 2007-07-20 18:22:17 -0500 | [diff] [blame^] | 60 | extern int bsg_register_queue(struct request_queue *, struct device *, const char *); |
FUJITA Tomonori | d351af0 | 2007-07-09 12:40:35 +0200 | [diff] [blame] | 61 | extern void bsg_unregister_queue(struct request_queue *); |
Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 62 | #else |
James Bottomley | 39dca55 | 2007-07-20 18:22:17 -0500 | [diff] [blame^] | 63 | #define bsg_register_queue(disk, dev, name) (0) |
FUJITA Tomonori | d351af0 | 2007-07-09 12:40:35 +0200 | [diff] [blame] | 64 | #define bsg_unregister_queue(disk) do { } while (0) |
Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 65 | #endif |
| 66 | |
FUJITA Tomonori | 45977d0e | 2006-12-20 11:19:32 +0100 | [diff] [blame] | 67 | #endif /* __KERNEL__ */ |
| 68 | |
Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 69 | #endif |