Soheil Hassas Yeganeh c14ac9451c sock: enable timestamping using control messages ... Currently, SOL_TIMESTAMPING can only be enabled using setsockopt. This is very costly when users want to sample writes to gather tx timestamps. Add support for enabling SO_TIMESTAMPING via control messages by using tsflags added in `struct sockcm_cookie` (added in the previous patches in this series) to set the tx_flags of the last skb created in a sendmsg. With this patch, the timestamp recording bits in tx_flags of the skbuff is overridden if SO_TIMESTAMPING is passed in a cmsg. Please note that this is only effective for overriding the recording timestamps flags. Users should enable timestamp reporting (e.g., SOF_TIMESTAMPING_SOFTWARE | SOF_TIMESTAMPING_OPT_ID) using socket options and then should ask for SOF_TIMESTAMPING_TX_* using control messages per sendmsg to sample timestamps for each write. Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2016-04-04 15:50:30 -04:00
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af_can.c	can: replace timestamp as unique skb attribute	2015-07-12 21:13:22 +02:00
af_can.h	can: add hash based access to single EFF frame filters	2014-05-19 09:38:24 +02:00
bcm.c	can: avoid using timeval for uapi	2015-10-13 17:42:34 +02:00
gw.c	can: cangw: introduce optional uid to reference created routing jobs	2015-06-09 09:39:49 +02:00
Kconfig	can: Kconfig: switch on all CAN protocolls by default	2013-01-26 16:58:58 +01:00
Makefile	can-gw: add netlink based CAN routing	2011-09-16 17:37:51 -04:00
proc.c	can: add hash based access to single EFF frame filters	2014-05-19 09:38:24 +02:00
raw.c	sock: enable timestamping using control messages	2016-04-04 15:50:30 -04:00