net/mlx5e: Add accelerated RFS support

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Implement ndo_rx_flow_steer ndo.
A new flow steering rule will be composed from the
skb 4-tuple and added to the hardware aRFS flow table.

Each rule is stored in an internal hash table, if such
skb 4-tuple rule already exists we update the corresponding
hardware steering rule with the new destination.

For garbage collection rps_may_expire_flow will be
invoked for a limited amount of old rules upon any
ndo_rx_flow_steer invocation.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Maor Gottlieb 2016-04-29 01:36:41 +03:00 • committed by David S. Miller

parent 1cabe6b096

commit 18c908e477

2 changed files with 436 additions and 1 deletions

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10

drivers/net/ethernet/mellanox/mlx5/core/en.h

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427

drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c

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