netdev - [PATCH net-next 02/14] mlxsw: spectrum_router: Consolidate nexthop helpers

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Message-Id: <20210322155855.3164151-3-idosch@idosch.org>
Date:   Mon, 22 Mar 2021 17:58:43 +0200
From:   Ido Schimmel <idosch@...sch.org>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, jiri@...dia.com,
        petrm@...dia.com, dsahern@...il.com, mlxsw@...dia.com,
        Ido Schimmel <idosch@...dia.com>
Subject: [PATCH net-next 02/14] mlxsw: spectrum_router: Consolidate nexthop helpers

From: Ido Schimmel <idosch@...dia.com>

The helper mlxsw_sp_nexthop_offload() is actually interested in finding
out if the nexthop is both written to the adjacency table and forwarding
packets (as opposed to discarding them).

Rename it to mlxsw_sp_nexthop_is_forward() and remove
mlxsw_sp_nexthop_is_discard().

Signed-off-by: Ido Schimmel <idosch@...dia.com>
Reviewed-by: Petr Machata <petrm@...dia.com>
---
 .../net/ethernet/mellanox/mlxsw/spectrum_dpipe.c  | 15 ++++++---------
 .../net/ethernet/mellanox/mlxsw/spectrum_router.c |  9 ++-------
 .../net/ethernet/mellanox/mlxsw/spectrum_router.h |  3 +--
 3 files changed, 9 insertions(+), 18 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c
index ed81d4fa48ac..936224d8c2ea 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c
@@ -912,9 +912,8 @@ static u64 mlxsw_sp_dpipe_table_adj_size(struct mlxsw_sp *mlxsw_sp)
 	u64 size = 0;
 
 	mlxsw_sp_nexthop_for_each(nh, mlxsw_sp->router)
-		if (mlxsw_sp_nexthop_offload(nh) &&
-		    !mlxsw_sp_nexthop_group_has_ipip(nh) &&
-		    !mlxsw_sp_nexthop_is_discard(nh))
+		if (mlxsw_sp_nexthop_is_forward(nh) &&
+		    !mlxsw_sp_nexthop_group_has_ipip(nh))
 			size++;
 	return size;
 }
@@ -1105,9 +1104,8 @@ mlxsw_sp_dpipe_table_adj_entries_get(struct mlxsw_sp *mlxsw_sp,
 	nh_skip = nh_count;
 	nh_count = 0;
 	mlxsw_sp_nexthop_for_each(nh, mlxsw_sp->router) {
-		if (!mlxsw_sp_nexthop_offload(nh) ||
-		    mlxsw_sp_nexthop_group_has_ipip(nh) ||
-		    mlxsw_sp_nexthop_is_discard(nh))
+		if (!mlxsw_sp_nexthop_is_forward(nh) ||
+		    mlxsw_sp_nexthop_group_has_ipip(nh))
 			continue;
 
 		if (nh_count < nh_skip)
@@ -1187,9 +1185,8 @@ static int mlxsw_sp_dpipe_table_adj_counters_update(void *priv, bool enable)
 	u32 adj_size = 0;
 
 	mlxsw_sp_nexthop_for_each(nh, mlxsw_sp->router) {
-		if (!mlxsw_sp_nexthop_offload(nh) ||
-		    mlxsw_sp_nexthop_group_has_ipip(nh) ||
-		    mlxsw_sp_nexthop_is_discard(nh))
+		if (!mlxsw_sp_nexthop_is_forward(nh) ||
+		    mlxsw_sp_nexthop_group_has_ipip(nh))
 			continue;
 
 		mlxsw_sp_nexthop_indexes(nh, &adj_index, &adj_size,
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index 0e0b40e97783..593a40aa9af8 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -2979,9 +2979,9 @@ struct mlxsw_sp_nexthop *mlxsw_sp_nexthop_next(struct mlxsw_sp_router *router,
 	return list_next_entry(nh, router_list_node);
 }
 
-bool mlxsw_sp_nexthop_offload(struct mlxsw_sp_nexthop *nh)
+bool mlxsw_sp_nexthop_is_forward(const struct mlxsw_sp_nexthop *nh)
 {
-	return nh->offloaded;
+	return nh->offloaded && !nh->discard;
 }
 
 unsigned char *mlxsw_sp_nexthop_ha(struct mlxsw_sp_nexthop *nh)
@@ -3036,11 +3036,6 @@ bool mlxsw_sp_nexthop_group_has_ipip(struct mlxsw_sp_nexthop *nh)
 	return false;
 }
 
-bool mlxsw_sp_nexthop_is_discard(const struct mlxsw_sp_nexthop *nh)
-{
-	return nh->discard;
-}
-
 static const struct rhashtable_params mlxsw_sp_nexthop_group_vr_ht_params = {
 	.key_offset = offsetof(struct mlxsw_sp_nexthop_group_vr_entry, key),
 	.head_offset = offsetof(struct mlxsw_sp_nexthop_group_vr_entry, ht_node),
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h
index 2875ee8ec537..8ecd090a5d8a 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h
@@ -195,13 +195,12 @@ mlxsw_sp_ipip_demote_tunnel_by_saddr(struct mlxsw_sp *mlxsw_sp,
 				     const struct mlxsw_sp_ipip_entry *except);
 struct mlxsw_sp_nexthop *mlxsw_sp_nexthop_next(struct mlxsw_sp_router *router,
 					       struct mlxsw_sp_nexthop *nh);
-bool mlxsw_sp_nexthop_offload(struct mlxsw_sp_nexthop *nh);
+bool mlxsw_sp_nexthop_is_forward(const struct mlxsw_sp_nexthop *nh);
 unsigned char *mlxsw_sp_nexthop_ha(struct mlxsw_sp_nexthop *nh);
 int mlxsw_sp_nexthop_indexes(struct mlxsw_sp_nexthop *nh, u32 *p_adj_index,
 			     u32 *p_adj_size, u32 *p_adj_hash_index);
 struct mlxsw_sp_rif *mlxsw_sp_nexthop_rif(struct mlxsw_sp_nexthop *nh);
 bool mlxsw_sp_nexthop_group_has_ipip(struct mlxsw_sp_nexthop *nh);
-bool mlxsw_sp_nexthop_is_discard(const struct mlxsw_sp_nexthop *nh);
 #define mlxsw_sp_nexthop_for_each(nh, router)				\
 	for (nh = mlxsw_sp_nexthop_next(router, NULL); nh;		\
 	     nh = mlxsw_sp_nexthop_next(router, nh))
-- 
2.29.2