dpaa2-eth: Add congestion group taildrop

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The increase in number of ingress frame queues means we now risk
depleting the buffer pool before the FQ taildrop kicks in.

Congestion group taildrop allows us to control the number of frames that
can accumulate on a group of Rx frame queues belonging to the same
traffic class.  This setting coexists with the frame queue based
taildrop: whichever limit gets hit first triggers the frame drop.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Ioana Radulescu 2020-05-31 00:08:11 +03:00 • committed by David S. Miller

parent ad054f2654

commit 2c8d1c8d7d

2 changed files with 38 additions and 10 deletions

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35

drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c

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13

drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h

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