1 #ifndef _SCSI_SCSI_EH_H 2 #define _SCSI_SCSI_EH_H 3 4 #include <linux/scatterlist.h> 5 6 #include <scsi/scsi_cmnd.h> 7 #include <scsi/scsi_common.h> 8 struct scsi_device; 9 struct Scsi_Host; 10 11 extern void scsi_eh_finish_cmd(struct scsi_cmnd *scmd, 12 struct list_head *done_q); 13 extern void scsi_eh_flush_done_q(struct list_head *done_q); 14 extern void scsi_report_bus_reset(struct Scsi_Host *, int); 15 extern void scsi_report_device_reset(struct Scsi_Host *, int, int); 16 extern int scsi_block_when_processing_errors(struct scsi_device *); 17 extern bool scsi_command_normalize_sense(const struct scsi_cmnd *cmd, 18 struct scsi_sense_hdr *sshdr); 19 20 static inline bool scsi_sense_is_deferred(const struct scsi_sense_hdr *sshdr) 21 { 22 return ((sshdr->response_code >= 0x70) && (sshdr->response_code & 1)); 23 } 24 25 extern int scsi_get_sense_info_fld(const u8 * sense_buffer, int sb_len, 26 u64 * info_out); 27 28 extern int scsi_ioctl_reset(struct scsi_device *, int __user *); 29 30 struct scsi_eh_save { 31 /* saved state */ 32 int result; 33 enum dma_data_direction data_direction; 34 unsigned underflow; 35 unsigned char cmd_len; 36 unsigned char prot_op; 37 unsigned char *cmnd; 38 struct scsi_data_buffer sdb; 39 struct request *next_rq; 40 /* new command support */ 41 unsigned char eh_cmnd[BLK_MAX_CDB]; 42 struct scatterlist sense_sgl; 43 }; 44 45 extern void scsi_eh_prep_cmnd(struct scsi_cmnd *scmd, 46 struct scsi_eh_save *ses, unsigned char *cmnd, 47 int cmnd_size, unsigned sense_bytes); 48 49 extern void scsi_eh_restore_cmnd(struct scsi_cmnd* scmd, 50 struct scsi_eh_save *ses); 51 52 #endif /* _SCSI_SCSI_EH_H */ 53