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mlxsw: spectrum_nve: Un/offload FDB on nve_fid_disable/enable 

Any existing NVE FDB entries need to be offloaded when NVE is enabled
for a given FID. Recent patches have added fdb_replay op for this, so
just invoke it from mlxsw_sp_nve_fid_enable().

When NVE is disabled on a FID, any existing FDB offloaded marks need to
be cleared on NVE device as well as on its bridge master. An op to
handle this, fdb_clear_offload, has been added to FID ops and NVE ops in
previous patches. Add code to resolve the NVE device, NVE type, and
dispatch to both fdb_clear_offload ops.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Petr Machata 2018-12-07 19:55:17 +00:00 committed by David S. Miller
parent 83de78831b
commit 8a5969d8a8
1 changed files with 41 additions and 0 deletions
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41
drivers/net/ethernet/mellanox/mlxsw/spectrum_nve.c
View File

@ -789,6 +789,21 @@ static void mlxsw_sp_nve_fdb_flush_by_fid(struct mlxsw_sp *mlxsw_sp,
mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl);
}
static void mlxsw_sp_nve_fdb_clear_offload(struct mlxsw_sp *mlxsw_sp,
const struct mlxsw_sp_fid *fid,
const struct net_device *nve_dev,
__be32 vni)
{
const struct mlxsw_sp_nve_ops *ops;
enum mlxsw_sp_nve_type type;
if (WARN_ON(mlxsw_sp_fid_nve_type(fid, &type)))
return;
ops = mlxsw_sp->nve->nve_ops_arr[type];
ops->fdb_clear_offload(nve_dev, vni);
}
int mlxsw_sp_nve_fid_enable(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_fid *fid,
struct mlxsw_sp_nve_params *params,
struct netlink_ext_ack *extack)
@ -826,8 +841,16 @@ int mlxsw_sp_nve_fid_enable(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_fid *fid,
nve->config = config;
err = ops->fdb_replay(params->dev, params->vni);
if (err) {
NL_SET_ERR_MSG_MOD(extack, "Failed to offload the FDB");
goto err_fdb_replay;
}
return 0;
err_fdb_replay:
mlxsw_sp_fid_vni_clear(fid);
err_fid_vni_set:
mlxsw_sp_nve_tunnel_fini(mlxsw_sp);
return err;
@ -837,9 +860,27 @@ void mlxsw_sp_nve_fid_disable(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_fid *fid)
{
u16 fid_index = mlxsw_sp_fid_index(fid);
struct net_device *nve_dev;
int nve_ifindex;
__be32 vni;
mlxsw_sp_nve_flood_ip_flush(mlxsw_sp, fid);
mlxsw_sp_nve_fdb_flush_by_fid(mlxsw_sp, fid_index);
if (WARN_ON(mlxsw_sp_fid_nve_ifindex(fid, &nve_ifindex) ||
mlxsw_sp_fid_vni(fid, &vni)))
goto out;
nve_dev = dev_get_by_index(&init_net, nve_ifindex);
if (!nve_dev)
goto out;
mlxsw_sp_nve_fdb_clear_offload(mlxsw_sp, fid, nve_dev, vni);
mlxsw_sp_fid_fdb_clear_offload(fid, nve_dev);
dev_put(nve_dev);
out:
mlxsw_sp_fid_vni_clear(fid);
mlxsw_sp_nve_tunnel_fini(mlxsw_sp);
}