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mlxsw: spectrum: mr: Support trap-and-forward routes 

Add the support of trap-and-forward route action in the multicast routing
offloading logic. A route will be set to trap-and-forward action if one (or
more) of its output interfaces is not offload-able, i.e. does not have a
valid Spectrum RIF.

This way, a route with mixed output VIFs list, which contains both
offload-able and un-offload-able devices can go through partial offloading
in hardware, and the rest will be done in the kernel ipmr module.

Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yotam Gigi 2017-10-03 09:58:12 +02:00 committed by David S. Miller
parent 607feadef8
commit f60c254998
1 changed files with 8 additions and 9 deletions
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17
drivers/net/ethernet/mellanox/mlxsw/spectrum_mr.c
View File

@ -114,9 +114,9 @@ static bool mlxsw_sp_mr_vif_valid(const struct mlxsw_sp_mr_vif *vif)
return mlxsw_sp_mr_vif_regular(vif) && vif->dev && vif->rif;
}
static bool mlxsw_sp_mr_vif_rif_invalid(const struct mlxsw_sp_mr_vif *vif)
static bool mlxsw_sp_mr_vif_exists(const struct mlxsw_sp_mr_vif *vif)
{
return mlxsw_sp_mr_vif_regular(vif) && vif->dev && !vif->rif;
return vif->dev;
}
static bool
@ -182,14 +182,13 @@ mlxsw_sp_mr_route_action(const struct mlxsw_sp_mr_route *mr_route)
if (!mlxsw_sp_mr_route_valid_evifs_num(mr_route))
return MLXSW_SP_MR_ROUTE_ACTION_TRAP;
/* If either one of the eVIFs is not regular (VIF of type pimreg or
* tunnel) or one of the VIFs has no matching RIF, trap the packet.
/* If one of the eVIFs has no RIF, trap-and-forward the route as there
* is some more routing to do in software too.
*/
list_for_each_entry(rve, &mr_route->evif_list, route_node) {
if (!mlxsw_sp_mr_vif_regular(rve->mr_vif) ||
mlxsw_sp_mr_vif_rif_invalid(rve->mr_vif))
return MLXSW_SP_MR_ROUTE_ACTION_TRAP;
}
list_for_each_entry(rve, &mr_route->evif_list, route_node)
if (mlxsw_sp_mr_vif_exists(rve->mr_vif) && !rve->mr_vif->rif)
return MLXSW_SP_MR_ROUTE_ACTION_TRAP_AND_FORWARD;
return MLXSW_SP_MR_ROUTE_ACTION_FORWARD;
}