1 #ifndef _SCSI_SCSI_EH_H
2 #define _SCSI_SCSI_EH_H
10 * This is a slightly modified SCSI sense "descriptor" format header.
11 * The addition is to allow the 0x70 and 0x71 response codes. The idea
12 * is to place the salient data from either "fixed" or "descriptor" sense
13 * format into one structure to ease application processing.
15 * The original sense buffer should be kept around for those cases
16 * in which more information is required (e.g. the LBA of a MEDIUM ERROR).
18 struct scsi_sense_hdr
{ /* See SPC-3 section 4.5 */
19 u8 response_code
; /* permit: 0x0, 0x70, 0x71, 0x72, 0x73 */
26 u8 additional_length
; /* always 0 for fixed sense format */
29 static inline int scsi_sense_valid(struct scsi_sense_hdr
*sshdr
)
34 return (sshdr
->response_code
& 0x70) == 0x70;
38 extern void scsi_eh_finish_cmd(struct scsi_cmnd
*scmd
,
39 struct list_head
*done_q
);
40 extern void scsi_eh_flush_done_q(struct list_head
*done_q
);
41 extern void scsi_report_bus_reset(struct Scsi_Host
*, int);
42 extern void scsi_report_device_reset(struct Scsi_Host
*, int, int);
43 extern int scsi_block_when_processing_errors(struct scsi_device
*);
44 extern int scsi_normalize_sense(const u8
*sense_buffer
, int sb_len
,
45 struct scsi_sense_hdr
*sshdr
);
46 extern int scsi_request_normalize_sense(struct scsi_request
*sreq
,
47 struct scsi_sense_hdr
*sshdr
);
48 extern int scsi_command_normalize_sense(struct scsi_cmnd
*cmd
,
49 struct scsi_sense_hdr
*sshdr
);
51 static inline int scsi_sense_is_deferred(struct scsi_sense_hdr
*sshdr
)
53 return ((sshdr
->response_code
>= 0x70) && (sshdr
->response_code
& 1));
56 extern const u8
* scsi_sense_desc_find(const u8
* sense_buffer
, int sb_len
,
59 extern int scsi_get_sense_info_fld(const u8
* sense_buffer
, int sb_len
,
63 * Reset request from external source
65 #define SCSI_TRY_RESET_DEVICE 1
66 #define SCSI_TRY_RESET_BUS 2
67 #define SCSI_TRY_RESET_HOST 3
69 extern int scsi_reset_provider(struct scsi_device
*, int);
71 #endif /* _SCSI_SCSI_EH_H */