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linux-next/arch/cris/include/uapi
Eric Dumazet 62748f32d5 net: introduce SO_MAX_PACING_RATE
As mentioned in commit afe4fd0624 ("pkt_sched: fq: Fair Queue packet
scheduler"), this patch adds a new socket option.

SO_MAX_PACING_RATE offers the application the ability to cap the
rate computed by transport layer. Value is in bytes per second.

u32 val = 1000000;
setsockopt(sockfd, SOL_SOCKET, SO_MAX_PACING_RATE, &val, sizeof(val));

To be effectively paced, a flow must use FQ packet scheduler.

Note that a packet scheduler takes into account the headers for its
computations. The effective payload rate depends on MSS and retransmits
if any.

I chose to make this pacing rate a SOL_SOCKET option instead of a
TCP one because this can be used by other protocols.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Steinar H. Gunderson <sesse@google.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-28 15:35:41 -07:00
..
arch-v10/arch UAPI: (Scripted) Disintegrate arch/cris/include/arch-v10/arch 2012-10-09 09:46:41 +01:00
arch-v32/arch UAPI: (Scripted) Disintegrate arch/cris/include/arch-v32/arch 2012-10-09 09:46:42 +01:00
asm net: introduce SO_MAX_PACING_RATE 2013-09-28 15:35:41 -07:00