• Daniel Kiper's avatar
    ieee1275: no-data-command bus specific method · c422bb60
    Daniel Kiper authored
    IEEE 1275-1994 Standard for Boot (Initialization Configuration)
    Firmware: Core Requirements and Practices
    E.3.2.2 Bus-specific methods for bus nodes
    A package implementing the scsi-2 device type shall implement the
    following bus-specific method:
    no-data-command ( cmd-addr -- error? )
    Executes a simple SCSI command, automatically retrying under
    certain conditions.  cmd-addr is the address of a 6-byte command buffer
    containing an SCSI command that does not have a data transfer phase.
    Executes the command, retrying indefinitely with the same retry criteria
    as retry-command.
    error? is nonzero if an error occurred, zero otherwise.
    NOTE no-data-command is a convenience function. It provides
    no capabilities that are not present in retry-command, but for
    those commands that meet its restrictions, it is easier to use.
    Signed-off-by: default avatarEric Snowberg <eric.snowberg@oracle.com>
    Reviewed-by: default avatarDaniel Kiper <daniel.kiper@oracle.com>
ieee1275.c 19 KB