vserver 1.9.5.x5

[linux-2.6.git] / include / scsi / scsi_eh.h

diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h
index ae261ea..80557f8 100644 (file)
--- 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
  */