diff options
Diffstat (limited to 'include/scsi/scsi_eh.h')
| -rw-r--r-- | include/scsi/scsi_eh.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h new file mode 100644 index 000000000..91f403341 --- /dev/null +++ b/include/scsi/scsi_eh.h @@ -0,0 +1,56 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _SCSI_SCSI_EH_H +#define _SCSI_SCSI_EH_H + +#include <linux/scatterlist.h> + +#include <scsi/scsi_cmnd.h> +#include <scsi/scsi_common.h> +struct scsi_device; +struct Scsi_Host; + +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 bool scsi_command_normalize_sense(const struct scsi_cmnd *cmd, + struct scsi_sense_hdr *sshdr); +extern int scsi_check_sense(struct scsi_cmnd *); + +static inline bool scsi_sense_is_deferred(const struct scsi_sense_hdr *sshdr) +{ + return ((sshdr->response_code >= 0x70) && (sshdr->response_code & 1)); +} + +extern bool scsi_get_sense_info_fld(const u8 *sense_buffer, int sb_len, + u64 *info_out); + +extern int scsi_ioctl_reset(struct scsi_device *, int __user *); + +struct scsi_eh_save { + /* saved state */ + int result; + unsigned int resid_len; + int eh_eflags; + 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 */ |