sfc: support TC left-hand-side rules on foreign netdevs

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Allow a tunnel netdevice (such as a vxlan) to offload conntrack lookups,
 in much the same way as efx netdevs.
To ensure this rule does not overlap with other tunnel rules on the same
 sip,dip,dport tuple, register a pseudo encap match of a new type
 (EFX_TC_EM_PSEUDO_OR), which unlike PSEUDO_MASK may only be referenced
 once (because an actual Outer Rule in hardware exists, although its
 fw_id is not recorded in the encap match entry).

Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com>
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

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Edward Cree 2023-10-02 16:44:41 +01:00 • committed by David S. Miller

parent 2a92fccdac

commit ec1dc6c88c

3 changed files with 222 additions and 2 deletions

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6

drivers/net/ethernet/sfc/mae.c

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213

drivers/net/ethernet/sfc/tc.c

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5

drivers/net/ethernet/sfc/tc.h

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