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authorRichard Cochran <richardcochran@gmail.com>2010-07-17 08:49:36 +0000
committerDavid S. Miller <davem@davemloft.net>2010-07-18 19:15:26 -0700
commitc1f19b51d1d87f3e3bb7e6648f43f7d57ed2da6b (patch)
treed9525359409e3493b48e8676717cc11ed69b640a /net/socket.c
parent15f0127d1d189fda3294b7823e3e654afca54055 (diff)
downloadlinux-c1f19b51d1d87f3e3bb7e6648f43f7d57ed2da6b.tar.bz2
net: support time stamping in phy devices.
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: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/socket.c')
-rw-r--r--net/socket.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/socket.c b/net/socket.c
index 6fe484122a44..2270b941bcc7 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -2394,6 +2394,10 @@ static int __init sock_init(void)
netfilter_init();
#endif
+#ifdef CONFIG_NETWORK_PHY_TIMESTAMPING
+ skb_timestamping_init();
+#endif
+
return 0;
}