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 extern int scsi_check_sense(struct scsi_cmnd *); 20 21 static inline bool scsi_sense_is_deferred(const struct scsi_sense_hdr *sshdr) 22 { 23 return ((sshdr->response_code >= 0x70) && (sshdr->response_code & 1)); 24 } 25 26 extern bool scsi_get_sense_info_fld(const u8 *sense_buffer, int sb_len, 27 u64 *info_out); 28 29 extern int scsi_ioctl_reset(struct scsi_device *, int __user *); 30 31 struct scsi_eh_save { 32 /* saved state */ 33 int result; 34 int eh_eflags; 35 enum dma_data_direction data_direction; 36 unsigned underflow; 37 unsigned char cmd_len; 38 unsigned char prot_op; 39 unsigned char *cmnd; 40 struct scsi_data_buffer sdb; 41 struct request *next_rq; 42 /* new command support */ 43 unsigned char eh_cmnd[BLK_MAX_CDB]; 44 struct scatterlist sense_sgl; 45 }; 46 47 extern void scsi_eh_prep_cmnd(struct scsi_cmnd *scmd, 48 struct scsi_eh_save *ses, unsigned char *cmnd, 49 int cmnd_size, unsigned sense_bytes); 50 51 extern void scsi_eh_restore_cmnd(struct scsi_cmnd* scmd, 52 struct scsi_eh_save *ses); 53 54 #endif /* _SCSI_SCSI_EH_H */ 55