tg3: PTP - Add the hardware timestamp ioctl
This patch implements the SIOCSHWTSTAMP ioctl as described in Documentation/networking/timestamping.txt [Removed HWTSTAMP_FILTER_ALL handling by returning -ERANGE based on input from Richard Cochran.] Signed-off-by: NNithin Nayak Sujir <nsujir@broadcom.com> Signed-off-by: NMichael Chan <mchan@broadcom.com> Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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