net: thunderx: Receive hashing HW offload support

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Adding support for receive hashing HW offload by using RSS_ALG
and RSS_TAG fields of CQE_RX descriptor. Also removed dependency
on minimum receive queue count to configure RSS so that hash is
always generated.

This hash is used by RPS logic to distribute flows across multiple
CPUs. Offload can be disabled via ethtool.

Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

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Sunil Goutham 2015-08-30 12:29:12 +03:00 • committed by David S. Miller

parent 6051cba77c

commit 38bb5d4f4f

2 changed files with 39 additions and 10 deletions

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14

drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c

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35

drivers/net/ethernet/cavium/thunder/nicvf_main.c

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