[deliverable/linux.git] / include / scsi / scsi_eh.h

#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);

static inline bool scsi_sense_is_deferred(const struct scsi_sense_hdr *sshdr)
{
	return ((sshdr->response_code >= 0x70) && (sshdr->response_code & 1));
}

extern int 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;
	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 */
Commit	Line	Data
	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 */