• Allen Pais's avatar
    sunvdc: add cdrom and v1.1 protocol support · 9bce2182
    Allen Pais authored
    Interpret the media type from v1.1 protocol to support CDROM/DVD.
    
    For v1.0 protocol, a disk's size continues to be calculated from the
    geometry returned by the vdisk server. The geometry returned by the server
    can be less than the actual number of sectors available in the backing
    image/device due to the rounding in the division used to compute the
    geometry in the vdisk server.
    
    In v1.1 protocol a disk's actual size in sectors is returned during the
    handshake. Use this size when v1.1 protocol is negotiated. Since this size
    will always be larger than the former geometry computed size, disks created
    under v1.0 will be forwards compatible to v1.1, but not vice versa.
    Signed-off-by: default avatarDwight Engen <dwight.engen@oracle.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    9bce2182
sunvdc.c 21 KB