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| author |   Ido Schimmel <idosch@mellanox.com> | 2018-11-25 09:43:57 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-11-27 15:27:08 -0800 |
| commit | d62dd8a0c808b6afac5c85547a84aad7b187b108 (patch) | |
| tree | 2cc75ce6c22066c946114dffa2d695d02d284c46 /drivers/net/ethernet/mellanox/mlxsw/spectrum_fid.c | |
| parent | mlxsw: spectrum_fid: Make flood index calculation more robust (diff) | |
| download | linux-dev-d62dd8a0c808b6afac5c85547a84aad7b187b108.tar.xz linux-dev-d62dd8a0c808b6afac5c85547a84aad7b187b108.zip | |
mlxsw: spectrum_fid: Introduce emulated 802.1Q FIDs
The driver uses 802.1Q FIDs when offloading a VLAN-aware bridge.
Unfortunately, it is not possible to assign a VNI to such FIDs, which
prompts the driver to forbid the enslavement of VxLAN devices to a
VLAN-aware bridge.
Workaround this hardware limitation by creating a new family of FIDs,
emulated 802.1Q FIDs. These FIDs are emulated using 802.1D FIDs, which
can be assigned a VNI.
The downside of this approach is that multiple {Port, VID}->FID entries
are required, whereas only a single VID->FID is required with "true"
802.1Q FIDs.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/spectrum_fid.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum_fid.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_fid.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_fid.c index e1739cda25cb..99ccb11405a5 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_fid.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_fid.c @@ -801,6 +801,39 @@ static const struct mlxsw_sp_fid_family mlxsw_sp_fid_8021d_family = { .lag_vid_valid = 1, }; +static const struct mlxsw_sp_fid_ops mlxsw_sp_fid_8021q_emu_ops = { + .setup = mlxsw_sp_fid_8021q_setup, + .configure = mlxsw_sp_fid_8021d_configure, + .deconfigure = mlxsw_sp_fid_8021d_deconfigure, + .index_alloc = mlxsw_sp_fid_8021d_index_alloc, + .compare = mlxsw_sp_fid_8021q_compare, + .flood_index = mlxsw_sp_fid_8021d_flood_index, + .port_vid_map = mlxsw_sp_fid_8021d_port_vid_map, + .port_vid_unmap = mlxsw_sp_fid_8021d_port_vid_unmap, + .vni_set = mlxsw_sp_fid_8021d_vni_set, + .vni_clear = mlxsw_sp_fid_8021d_vni_clear, + .nve_flood_index_set = mlxsw_sp_fid_8021d_nve_flood_index_set, + .nve_flood_index_clear = mlxsw_sp_fid_8021d_nve_flood_index_clear, +}; + +/* There are 4K-2 emulated 802.1Q FIDs, starting right after the 802.1D FIDs */ +#define MLXSW_SP_FID_8021Q_EMU_START (VLAN_N_VID + MLXSW_SP_FID_8021D_MAX) +#define MLXSW_SP_FID_8021Q_EMU_END (MLXSW_SP_FID_8021Q_EMU_START + \ + VLAN_VID_MASK - 2) + +/* Range and flood configuration must match mlxsw_config_profile */ +static const struct mlxsw_sp_fid_family mlxsw_sp_fid_8021q_emu_family = { + .type = MLXSW_SP_FID_TYPE_8021Q, + .fid_size = sizeof(struct mlxsw_sp_fid_8021q), + .start_index = MLXSW_SP_FID_8021Q_EMU_START, + .end_index = MLXSW_SP_FID_8021Q_EMU_END, + .flood_tables = mlxsw_sp_fid_8021d_flood_tables, + .nr_flood_tables = ARRAY_SIZE(mlxsw_sp_fid_8021d_flood_tables), + .rif_type = MLXSW_SP_RIF_TYPE_VLAN, + .ops = &mlxsw_sp_fid_8021q_emu_ops, + .lag_vid_valid = 1, +}; + static int mlxsw_sp_fid_rfid_configure(struct mlxsw_sp_fid *fid) { /* rFIDs are allocated by the device during init */ |