diff options
| author | Amit Cohen <amcohen@nvidia.com> | 2022-07-04 09:11:29 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-07-04 11:56:57 +0300 |
| commit | fea20547d5b50017e1a0525e6788bd3db22f5ca3 (patch) | |
| tree | b5df3d0845b55243e8a409bb0b8457bfc3445011 /drivers/net/ethernet/mellanox/mlxsw/spectrum.h | |
| parent | 8cfc7f7707c1812d879e942ddc45b25bf088c0b4 (diff) | |
| download | linux-fea20547d5b50017e1a0525e6788bd3db22f5ca3.tar.xz | |
mlxsw: Configure ingress RIF classification
Before layer 2 forwarding, the device classifies an incoming packet to
a FID. The classification is done based on one of the following keys:
1. FID
2. VNI (after decapsulation)
3. VID / {Port, VID}
After classification, the FID is known, but also all the attributes of
the FID, such as the router interface (RIF) via which a packet that
needs to be routed will ingress the router block.
In the legacy model, when a RIF was created / destroyed, it was
firmware's responsibility to update it in the previously mentioned FID
classification records. In the unified bridge model, this responsibility
moved to software.
The third classification requires to iterate over the FID's {Port, VID}
list and issue SVFA write with the correct mapping table according to the
port's mode (virtual or not). We never map multiple VLANs to the same FID
using VID->FID mapping, so such a mapping needs to be performed once.
When a new FID classification entry is configured and the FID already has
a RIF, set the RIF as part of SVFA configuration.
The reverse needs to be done when clearing a RIF from a FID. Currently,
clearing is done by issuing mlxsw_sp_fid_rif_set() with a NULL RIF pointer.
Instead, introduce mlxsw_sp_fid_rif_unset().
Note that mlxsw_sp_fid_rif_set() is called after the RIF is fully
operational, so it conforms to the internal requirement regarding
SVFA.irif_v: "Must not be set for a non-enabled RIF".
Do not set the ingress RIF for rFIDs, as the {Port, VID}->rFID entry is
configured by firmware when legacy model is used, a next patch will
handle this configuration for rFIDs and unified bridge model.
Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/spectrum.h')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h index 8de3bdcdf143..b1810a22a1a6 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h @@ -737,6 +737,7 @@ union mlxsw_sp_l3addr { struct in6_addr addr6; }; +u16 mlxsw_sp_rif_index(const struct mlxsw_sp_rif *rif); int mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp, struct netlink_ext_ack *extack); void mlxsw_sp_router_fini(struct mlxsw_sp *mlxsw_sp); @@ -1285,7 +1286,8 @@ void mlxsw_sp_fid_port_vid_unmap(struct mlxsw_sp_fid *fid, struct mlxsw_sp_port *mlxsw_sp_port, u16 vid); u16 mlxsw_sp_fid_index(const struct mlxsw_sp_fid *fid); enum mlxsw_sp_fid_type mlxsw_sp_fid_type(const struct mlxsw_sp_fid *fid); -void mlxsw_sp_fid_rif_set(struct mlxsw_sp_fid *fid, struct mlxsw_sp_rif *rif); +int mlxsw_sp_fid_rif_set(struct mlxsw_sp_fid *fid, struct mlxsw_sp_rif *rif); +void mlxsw_sp_fid_rif_unset(struct mlxsw_sp_fid *fid); struct mlxsw_sp_rif *mlxsw_sp_fid_rif(const struct mlxsw_sp_fid *fid); enum mlxsw_sp_rif_type mlxsw_sp_fid_type_rif_type(const struct mlxsw_sp *mlxsw_sp, |