usr/scsi.h

   1 /*
   2  * this is from the linux kernel scsi_eh.h
   3  */
   4 #ifndef _SCSI_SCSI_H
   5 #define _SCSI_SCSI_H
   6
   7 #include <stdint.h>
   8
   9 /*
  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.
  14  *
  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).
  17  */
  18 struct scsi_sense_hdr {         /* See SPC-3 section 4.5 */
  19         uint8_t response_code;  /* permit: 0x0, 0x70, 0x71, 0x72, 0x73 */
  20         uint8_t sense_key;
  21         uint8_t asc;
  22         uint8_t ascq;
  23         uint8_t byte4;
  24         uint8_t byte5;
  25         uint8_t byte6;
  26         uint8_t additional_length;      /* always 0 for fixed sense format */
  27 };
  28
  29 static inline int scsi_sense_valid(struct scsi_sense_hdr *sshdr)
  30 {
  31         if (!sshdr)
  32                 return 0;
  33
  34         return (sshdr->response_code & 0x70) == 0x70;
  35 }
  36
  37 extern int scsi_normalize_sense(const uint8_t *sense_buffer, int sb_len,
  38                                 struct scsi_sense_hdr *sshdr);
  39
  40 #endif