tcp: Add receive timestamp support for receive zerocopy.

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tcp_recvmsg() uses the CMSG mechanism to receive control information
like packet receive timestamps. This patch adds CMSG fields to
struct tcp_zerocopy_receive, and provides receive timestamps
if available to the user.

Signed-off-by: Arjun Roy <arjunroy@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Arjun Roy 2021-01-20 16:41:48 -08:00 • committed by Jakub Kicinski

parent 925bba24e6

commit 7eeba1706e

2 changed files with 88 additions and 32 deletions

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4

include/uapi/linux/tcp.h

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116

net/ipv4/tcp.c

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