diff mbox series

[net-next,06/14] mlxsw: spectrum_router: Prepare for nexthops with trap action

Message ID 20210322155855.3164151-7-idosch@idosch.org (mailing list archive)
State Accepted
Commit 1be2361e3ca715cd9315c3c4ebede8cdcfcbf7d5
Delegated to: Netdev Maintainers
Headers show
Series mlxsw: Preparations for resilient nexthop groups | expand

Checks

Context Check Description
netdev/cover_letter success Link
netdev/fixes_present success Link
netdev/patch_count success Link
netdev/tree_selection success Clearly marked for net-next
netdev/subject_prefix success Link
netdev/cc_maintainers success CCed 5 of 5 maintainers
netdev/source_inline success Was 0 now: 0
netdev/verify_signedoff success Link
netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/verify_fixes success Link
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 14 lines checked
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/header_inline success Link

Commit Message

Ido Schimmel March 22, 2021, 3:58 p.m. UTC 
From: Ido Schimmel <idosch@nvidia.com>

Nexthops that need to be programmed with a trap action might not have a
valid router interface (RIF) associated with them. Therefore, use the
loopback RIF created during initialization to program them to the
device.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index 3ad1e1bd2197..d09a76866a5f 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -3411,10 +3411,13 @@  static int __mlxsw_sp_nexthop_update(struct mlxsw_sp *mlxsw_sp, u32 adj_index,
 {
 	struct mlxsw_sp_neigh_entry *neigh_entry = nh->neigh_entry;
 	char ratr_pl[MLXSW_REG_RATR_LEN];
+	u16 rif_index;
 
+	rif_index = nh->rif ? nh->rif->rif_index :
+			      mlxsw_sp->router->lb_rif_index;
 	mlxsw_reg_ratr_pack(ratr_pl, MLXSW_REG_RATR_OP_WRITE_WRITE_ENTRY,
 			    true, MLXSW_REG_RATR_TYPE_ETHERNET,
-			    adj_index, nh->rif->rif_index);
+			    adj_index, rif_index);
 	if (nh->action == MLXSW_SP_NEXTHOP_ACTION_DISCARD)
 		mlxsw_reg_ratr_trap_action_set(ratr_pl,
 					       MLXSW_REG_RATR_TRAP_ACTION_DISCARD_ERRORS);