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-rw-r--r--include/scsi/scsi_eh.h55
1 files changed, 55 insertions, 0 deletions
diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h
new file mode 100644
index 000000000..6bd5ed695
--- /dev/null
+++ b/include/scsi/scsi_eh.h
@@ -0,0 +1,55 @@
+/* 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;
+ /* 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 */