netdev - [PATCH net-next 06/11] mlxsw: Create dedicated field for Rx metadata in skb control block

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Date:   Sun, 14 Mar 2021 14:19:35 +0200
From:   Ido Schimmel <idosch@...sch.org>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, jiri@...dia.com,
        yotam.gi@...il.com, jhs@...atatu.com, xiyou.wangcong@...il.com,
        roopa@...dia.com, peter.phaal@...on.com, neil.mckee@...on.com,
        mlxsw@...dia.com, Ido Schimmel <idosch@...dia.com>
Subject: [PATCH net-next 06/11] mlxsw: Create dedicated field for Rx metadata in skb control block

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

Next patch will need to encode more Rx metadata in the skb control
block, so create a dedicated field for it and move the cookie index
there.

Signed-off-by: Ido Schimmel <idosch@...dia.com>
Reviewed-by: Jiri Pirko <jiri@...dia.com>
---
 drivers/net/ethernet/mellanox/mlxsw/core.h          | 6 +++++-
 drivers/net/ethernet/mellanox/mlxsw/pci.c           | 2 +-
 drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c | 2 +-
 3 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/core.h b/drivers/net/ethernet/mellanox/mlxsw/core.h
index 8af7d9d03475..86adc17c8901 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/core.h
@@ -58,6 +58,10 @@ struct mlxsw_tx_info {
 	bool is_emad;
 };
 
+struct mlxsw_rx_md_info {
+	u32 cookie_index;
+};
+
 bool mlxsw_core_skb_transmit_busy(struct mlxsw_core *mlxsw_core,
 				  const struct mlxsw_tx_info *tx_info);
 int mlxsw_core_skb_transmit(struct mlxsw_core *mlxsw_core, struct sk_buff *skb,
@@ -515,7 +519,7 @@ enum mlxsw_devlink_param_id {
 struct mlxsw_skb_cb {
 	union {
 		struct mlxsw_tx_info tx_info;
-		u32 cookie_index; /* Only used during receive */
+		struct mlxsw_rx_md_info rx_md_info;
 	};
 };
 
diff --git a/drivers/net/ethernet/mellanox/mlxsw/pci.c b/drivers/net/ethernet/mellanox/mlxsw/pci.c
index d0052537e627..8eee8b3c675e 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/pci.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/pci.c
@@ -581,7 +581,7 @@ static void mlxsw_pci_cqe_rdq_handle(struct mlxsw_pci *mlxsw_pci,
 
 		if (mlxsw_pci->max_cqe_ver >= MLXSW_PCI_CQE_V2)
 			cookie_index = mlxsw_pci_cqe2_user_def_val_orig_pkt_len_get(cqe);
-		mlxsw_skb_cb(skb)->cookie_index = cookie_index;
+		mlxsw_skb_cb(skb)->rx_md_info.cookie_index = cookie_index;
 	} else if (rx_info.trap_id >= MLXSW_TRAP_ID_MIRROR_SESSION0 &&
 		   rx_info.trap_id <= MLXSW_TRAP_ID_MIRROR_SESSION7 &&
 		   mlxsw_pci->max_cqe_ver >= MLXSW_PCI_CQE_V2) {
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
index e0e6ee58d31a..5d4ae4886f76 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
@@ -108,7 +108,7 @@ static void mlxsw_sp_rx_drop_listener(struct sk_buff *skb, u8 local_port,
 static void mlxsw_sp_rx_acl_drop_listener(struct sk_buff *skb, u8 local_port,
 					  void *trap_ctx)
 {
-	u32 cookie_index = mlxsw_skb_cb(skb)->cookie_index;
+	u32 cookie_index = mlxsw_skb_cb(skb)->rx_md_info.cookie_index;
 	const struct flow_action_cookie *fa_cookie;
 	struct devlink_port *in_devlink_port;
 	struct mlxsw_sp_port *mlxsw_sp_port;
-- 
2.29.2