nfp: flower: verify pre-tunnel rules

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Pre-tunnel rules must direct packets to an internal port based on L2
information. Rules that egress to an internal port are already indicated
by a non-NULL device in its nfp_fl_payload struct. Verfiy the rest of the
match fields indicate that the rule is a pre-tunnel rule. This requires a
full match on the destination MAC address, an option VLAN field, and no
specific matches on other lower layer fields (with the exception of L4
proto and flags).

If a rule is identified as a pre-tunnel rule then mark it for offload to
the pre-tunnel table. Similarly, remove it from the pre-tunnel table on
rule deletion. The actual offloading of these commands is left to a
following patch.

Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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John Hurley 2019-08-04 16:09:09 +01:00 • committed by David S. Miller

parent f5c977eed7

commit 120ffd84a9

3 changed files with 115 additions and 5 deletions

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5

drivers/net/ethernet/netronome/nfp/flower/main.h

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103

drivers/net/ethernet/netronome/nfp/flower/offload.c

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12

drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c

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