net: stmmac: add BQL support

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Add support for Byte Queue Limits to the STMicro MAC driver.

Tested on a Amlogic S802 quad Cortex-A9 board, where the use of BQL
decreases the latency of a high priority ping from ~12ms to ~1ms when
the 100Mbit link is saturated by 20 TCP streams.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Beniamino Galvani 2015-01-21 19:07:27 +01:00 • committed by David S. Miller

parent 1793c798c3

commit 3897957494

1 changed files with 9 additions and 0 deletions

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drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

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