netdev - [patch net-next 02/10] mlxsw: Add fields for mlxsw's meta header for adjacency table

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Date:   Mon, 25 Sep 2017 10:32:22 +0200
From:   Jiri Pirko <jiri@...nulli.us>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, arkadis@...lanox.com, idosch@...lanox.com,
        mlxsw@...lanox.com
Subject: [patch net-next 02/10] mlxsw: Add fields for mlxsw's meta header for adjacency table

From: Arkadi Sharshevsky <arkadis@...lanox.com>

This patch adds field for mlxsw's meta header which will be used to
describe the match/action behavior of the adjacency table.

The fields are:
1. Adj_index - The global index of the nexthop group in the adjacency
   table.

2. Adj_hash_index - Local index offset which is based on packets hash
   mod the nexthop group size.

Signed-off-by: Arkadi Sharshevsky <arkadis@...lanox.com>
Signed-off-by: Jiri Pirko <jiri@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c
index 9164809..9253273 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c
@@ -43,6 +43,8 @@ enum mlxsw_sp_field_metadata_id {
 	MLXSW_SP_DPIPE_FIELD_METADATA_ERIF_PORT,
 	MLXSW_SP_DPIPE_FIELD_METADATA_L3_FORWARD,
 	MLXSW_SP_DPIPE_FIELD_METADATA_L3_DROP,
+	MLXSW_SP_DPIPE_FIELD_METADATA_ADJ_INDEX,
+	MLXSW_SP_DPIPE_FIELD_METADATA_ADJ_HASH_INDEX,
 };
 
 static struct devlink_dpipe_field mlxsw_sp_dpipe_fields_metadata[] = {
@@ -62,6 +64,16 @@ static struct devlink_dpipe_field mlxsw_sp_dpipe_fields_metadata[] = {
 		.id = MLXSW_SP_DPIPE_FIELD_METADATA_L3_DROP,
 		.bitwidth = 1,
 	},
+	{
+		.name = "adj_index",
+		.id = MLXSW_SP_DPIPE_FIELD_METADATA_ADJ_INDEX,
+		.bitwidth = 32,
+	},
+	{
+		.name = "adj_hash_index",
+		.id = MLXSW_SP_DPIPE_FIELD_METADATA_ADJ_HASH_INDEX,
+		.bitwidth = 32,
+	},
 };
 
 enum mlxsw_sp_dpipe_header_id {
-- 
2.9.5