gianfar: Add hardware TX timestamping support

Browse source

If a packet has the skb_shared_tx->hardware flag set the device is
instructed to generate a TX timestamp and write it back to memory after
the frame is transmitted. During the clean_tx_ring operation the
timestamp will be extracted and copied into the skb_shared_hwtstamps
struct of the skb.

TX timestamping is enabled by setting the tx_type to something else
than HWTSTAMP_TX_OFF with the SIOCSHWTSTAMP ioctl command. It is only
supported by eTSEC devices.

Signed-off-by: Manfred Rudigier <manfred.rudigier@omicron.at>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

This commit is contained in:

Manfred Rudigier 2010-04-08 23:10:35 +00:00 • committed by David S. Miller

parent cc772ab7cd

commit f0ee7acfcd

2 changed files with 101 additions and 20 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

118

drivers/net/gianfar.c

View file

3

drivers/net/gianfar.h

View file