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linux-next/drivers/scsi/scsi_tgt_priv.h
FUJITA Tomonori bc7e380a6a [SCSI] tgt: fix sesnse buffer problems
This patch simplify the way to notify LLDs of the command completion
and addresses the following sense buffer problems:

- can't handle both data and sense.
- forces user-space to use aligned sense buffer

tgt copies sense_data from userspace to cmnd->sense_buffer (if
necessary), maps user-space pages (if necessary) and then calls
host->transfer_response (host->transfer_data is removed).

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-03-11 11:39:27 -05:00

27 lines
895 B
C

struct scsi_cmnd;
struct scsi_lun;
struct Scsi_Host;
struct task_struct;
/* tmp - will replace with SCSI logging stuff */
#define eprintk(fmt, args...) \
do { \
printk("%s(%d) " fmt, __FUNCTION__, __LINE__, ##args); \
} while (0)
#define dprintk(fmt, args...)
/* #define dprintk eprintk */
extern void scsi_tgt_if_exit(void);
extern int scsi_tgt_if_init(void);
extern int scsi_tgt_uspace_send_cmd(struct scsi_cmnd *cmd, struct scsi_lun *lun,
u64 tag);
extern int scsi_tgt_uspace_send_status(struct scsi_cmnd *cmd, u64 tag);
extern int scsi_tgt_kspace_exec(int host_no, int result, u64 tag,
unsigned long uaddr, u32 len, unsigned long sense_uaddr,
u32 sense_len, u8 rw);
extern int scsi_tgt_uspace_send_tsk_mgmt(int host_no, int function, u64 tag,
struct scsi_lun *scsilun, void *data);
extern int scsi_tgt_kspace_tsk_mgmt(int host_no, u64 mid, int result);