mlxsw: spectrum_acl: Include delta bits into hashtable key

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Currently only ERP mask masked bits in key are considered for
the hashtable key. That leads to false negative collisions
and fallbacks to C-TCAM in case two keys differ only in delta bits.

Fix this by taking full encoded key as a hashtable key,
including delta bits.

Reported-by: Nir Dotan <nird@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Jiri Pirko 2019-01-30 08:58:33 +00:00 • committed by David S. Miller

parent 804a15cdbb

commit cb56e21467

3 changed files with 17 additions and 16 deletions

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21

drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_atcam.c

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2

drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_bloom_filter.c

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10

drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.h

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