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_report_bus_reset(struct Scsi_Host *, int);
39 extern void scsi_report_device_reset(struct Scsi_Host *, int, int);
40 extern int scsi_block_when_processing_errors(struct scsi_device *);
41 extern int scsi_normalize_sense(const u8 *sense_buffer, int sb_len,
42 struct scsi_sense_hdr *sshdr);
43 extern int scsi_request_normalize_sense(struct scsi_request *sreq,
44 struct scsi_sense_hdr *sshdr);
45 extern int scsi_command_normalize_sense(struct scsi_cmnd *cmd,
46 struct scsi_sense_hdr *sshdr);
48 static inline int scsi_sense_is_deferred(struct scsi_sense_hdr *sshdr)
50 return ((sshdr->response_code >= 0x70) && (sshdr->response_code & 1));
53 extern const u8 * scsi_sense_desc_find(const u8 * sense_buffer, int sb_len,
56 extern int scsi_get_sense_info_fld(const u8 * sense_buffer, int sb_len,
60 * Reset request from external source
62 #define SCSI_TRY_RESET_DEVICE 1
63 #define SCSI_TRY_RESET_BUS 2
64 #define SCSI_TRY_RESET_HOST 3
66 extern int scsi_reset_provider(struct scsi_device *, int);
68 #endif /* _SCSI_SCSI_EH_H */