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| author | Jakub Kicinski <kuba@kernel.org> | 2022-03-17 13:56:06 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-03-17 13:56:58 -0700 |
| commit | e243f39685af1bd6d837fa7bff40c1afdf3eb7fa (patch) | |
| tree | 61e9d9b74a0814f950a693ebe8061293e4960b1e /drivers/net/ethernet/mscc/ocelot_flower.c | |
| parent | 1abea24af42c35c6eb537e4402836e2cde2a5b13 (diff) | |
| parent | 551acdc3c3d2b6bc97f11e31dcf960bc36343bfc (diff) | |
| download | linux-e243f39685af1bd6d837fa7bff40c1afdf3eb7fa.tar.bz2 | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
No conflicts.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/mscc/ocelot_flower.c')
| -rw-r--r-- | drivers/net/ethernet/mscc/ocelot_flower.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mscc/ocelot_flower.c b/drivers/net/ethernet/mscc/ocelot_flower.c index b3f5418dc622..bd9525867caa 100644 --- a/drivers/net/ethernet/mscc/ocelot_flower.c +++ b/drivers/net/ethernet/mscc/ocelot_flower.c @@ -61,6 +61,12 @@ static int ocelot_chain_to_block(int chain, bool ingress) */ static int ocelot_chain_to_lookup(int chain) { + /* Backwards compatibility with older, single-chain tc-flower + * offload support in Ocelot + */ + if (chain == 0) + return 0; + return (chain / VCAP_LOOKUP) % 10; } @@ -69,7 +75,15 @@ static int ocelot_chain_to_lookup(int chain) */ static int ocelot_chain_to_pag(int chain) { - int lookup = ocelot_chain_to_lookup(chain); + int lookup; + + /* Backwards compatibility with older, single-chain tc-flower + * offload support in Ocelot + */ + if (chain == 0) + return 0; + + lookup = ocelot_chain_to_lookup(chain); /* calculate PAG value as chain index relative to the first PAG */ return chain - VCAP_IS2_CHAIN(lookup, 0); |