X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fscsi%2Fscsi_eh.h;h=80557f879e3e229b5e13cd107a5690b162b4988d;hb=6a77f38946aaee1cd85eeec6cf4229b204c15071;hp=ae261ea5f7e1e2ca8b471397bfffd0f0cdde57ec;hpb=87fc8d1bb10cd459024a742c6a10961fefcef18f;p=linux-2.6.git diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h index ae261ea5f..80557f879 100644 --- a/include/scsi/scsi_eh.h +++ b/include/scsi/scsi_eh.h @@ -3,15 +3,54 @@ struct scsi_cmnd; struct scsi_device; +struct scsi_request; struct Scsi_Host; +/* + * This is a slightly modified SCSI sense "descriptor" format header. + * The addition is to allow the 0x70 and 0x71 response codes. The idea + * is to place the salient data from either "fixed" or "descriptor" sense + * format into one structure to ease application processing. + * + * The original sense buffer should be kept around for those cases + * in which more information is required (e.g. the LBA of a MEDIUM ERROR). + */ +struct scsi_sense_hdr { /* See SPC-3 section 4.5 */ + u8 response_code; /* permit: 0x0, 0x70, 0x71, 0x72, 0x73 */ + u8 sense_key; + u8 asc; + u8 ascq; + u8 byte4; + u8 byte5; + u8 byte6; + u8 additional_length; /* always 0 for fixed sense format */ +}; + + extern void scsi_add_timer(struct scsi_cmnd *, int, - void (*)(struct scsi_cmnd *)); + void (*)(struct scsi_cmnd *)); extern int scsi_delete_timer(struct scsi_cmnd *); extern void scsi_report_bus_reset(struct Scsi_Host *, int); extern void scsi_report_device_reset(struct Scsi_Host *, int, int); extern int scsi_block_when_processing_errors(struct scsi_device *); +extern int scsi_normalize_sense(const u8 *sense_buffer, int sb_len, + struct scsi_sense_hdr *sshdr); +extern int scsi_request_normalize_sense(struct scsi_request *sreq, + struct scsi_sense_hdr *sshdr); +extern int scsi_command_normalize_sense(struct scsi_cmnd *cmd, + struct scsi_sense_hdr *sshdr); + +static inline int scsi_sense_is_deferred(struct scsi_sense_hdr *sshdr) +{ + return ((sshdr->response_code >= 0x70) && (sshdr->response_code & 1)); +} + +extern const u8 * scsi_sense_desc_find(const u8 * sense_buffer, int sb_len, + int desc_type); +extern int scsi_get_sense_info_fld(const u8 * sense_buffer, int sb_len, + u64 * info_out); + /* * Reset request from external source */