• Richard Cochran's avatar
    net: support time stamping in phy devices. · c1f19b51
    Richard Cochran authored
    This patch adds a new networking option to allow hardware time stamps
    from PHY devices. When enabled, likely candidates among incoming and
    outgoing network packets are offered to the PHY driver for possible
    time stamping. When accepted by the PHY driver, incoming packets are
    deferred for later delivery by the driver.
    
    The patch also adds phylib driver methods for the SIOCSHWTSTAMP ioctl
    and callbacks for transmit and receive time stamping. Drivers may
    optionally implement these functions.
    Signed-off-by: default avatarRichard Cochran <richard.cochran@omicron.at>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    c1f19b51
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