[SCSI] cxgb3i, iser, iscsi_tcp: set target can queue

[safe/jmp/linux-2.6] / include / scsi / scsi_eh.h

diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h
index 80557f8..06a8790 100644 (file)
--- a/include/scsi/scsi_eh.h
+++ b/include/scsi/scsi_eh.h
@@ -1,9 +1,10 @@
 #ifndef _SCSI_SCSI_EH_H
 #define _SCSI_SCSI_EH_H
 
-struct scsi_cmnd;
+#include <linux/scatterlist.h>
+
+#include <scsi/scsi_cmnd.h>
 struct scsi_device;
-struct scsi_request;
 struct Scsi_Host;
 
 /*
@@ -26,17 +27,23 @@ struct scsi_sense_hdr {             /* See SPC-3 section 4.5 */
        u8 additional_length;   /* always 0 for fixed sense format */
 };
 
+static inline int scsi_sense_valid(struct scsi_sense_hdr *sshdr)
+{
+       if (!sshdr)
+               return 0;
+
+       return (sshdr->response_code & 0x70) == 0x70;
+}
+
 
-extern void scsi_add_timer(struct scsi_cmnd *, int,
-               void (*)(struct scsi_cmnd *));
-extern int scsi_delete_timer(struct scsi_cmnd *);
+extern void scsi_eh_finish_cmd(struct scsi_cmnd *scmd,
+                              struct list_head *done_q);
+extern void scsi_eh_flush_done_q(struct list_head *done_q);
 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);
 
@@ -50,14 +57,39 @@ extern const u8 * scsi_sense_desc_find(const u8 * sense_buffer, int sb_len,
 
 extern int scsi_get_sense_info_fld(const u8 * sense_buffer, int sb_len,
                                   u64 * info_out);
- 
+
+extern void scsi_build_sense_buffer(int desc, u8 *buf, u8 key, u8 asc, u8 ascq);
+
 /*
  * Reset request from external source
  */
 #define SCSI_TRY_RESET_DEVICE  1
 #define SCSI_TRY_RESET_BUS     2
 #define SCSI_TRY_RESET_HOST    3
+#define SCSI_TRY_RESET_TARGET  4
 
 extern int scsi_reset_provider(struct scsi_device *, int);
 
+struct scsi_eh_save {
+       /* saved state */
+       int result;
+       enum dma_data_direction data_direction;
+       unsigned underflow;
+       unsigned char cmd_len;
+       unsigned char prot_op;
+       unsigned char *cmnd;
+       struct scsi_data_buffer sdb;
+       struct request *next_rq;
+       /* new command support */
+       unsigned char eh_cmnd[BLK_MAX_CDB];
+       struct scatterlist sense_sgl;
+};
+
+extern void scsi_eh_prep_cmnd(struct scsi_cmnd *scmd,
+               struct scsi_eh_save *ses, unsigned char *cmnd,
+               int cmnd_size, unsigned sense_bytes);
+
+extern void scsi_eh_restore_cmnd(struct scsi_cmnd* scmd,
+               struct scsi_eh_save *ses);
+
 #endif /* _SCSI_SCSI_EH_H */