SCO OpenServer

scsi_ha_info(D4osdi)

scsi_ha_info -- SCSI HBA features and capabilities structure

Synopsis

Description

Structure definition

   struct scsi_ha_info {
   	u_int	do_sg:1;		/* adapter does scatter/gather */
   	u_int	do_buffer:1;		/* adapter buffers cmds */
   	u_int	do_tagged:1;		/* adapter supports tagged cmds */
   	u_int	do_resource:1;		/* must reserve resources */
   	u_int	do_xtd_sense:1;		/* supports extended sense */
   	u_int	do_drive32:1;		/* adapter drives 32-bit addresses */
   	u_int	do_nomaps:1;		/* does not require Corollary maps */
   	u_int	do_reset:1;		/* supports SCSI_DEV_RESET command */
   	u_int	do_abort:1;		/* supports SCSI_ABORT command */
   	u_int	do_cache_ctl:1;		/* supports cache control */
   	u_int	has_cache:1;		/* adapter has a cache */
   	u_int	do_get_limits:1;	/* adapter can return config limits */
   	u_int	reserved:20;		/* reserved for future use */
   };
   typedef struct scsi_ha_info HAINFO;

Structure members

do_sg:1: adapter does scatter/gather
do_buffer:1: adapter buffers cmds
do_tagged:1: adapter supports tagged cmds
do_resource:1: must reserve resources
do_xtd_sense:1: supports extended sense
do_drive32:1: adapter drives 32-bit addresses
do_nomaps:1: does not require Corollary maps
do_reset:1: supports SCSI_DEV_RESET command
do_abort:1: supports SCSI_ABORT command
do_cache_ctl:1: supports cache control
has_cache:1: adapter has a cache
do_get_limits:1: adapter can return config limits
reserved:20: reserved for future use

Version applicability

osdi: 2, 3, 4, 5

References

scsi_io_req(D4osdi)

``Scatter/gather operations'' in HDK Technical Reference