netdev - [PATCH mlx5-next 1/3] net/mlx5: Expose eswitch encap mode

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Date:   Thu,  6 Jun 2019 14:06:07 +0300
From:   Leon Romanovsky <leon@...nel.org>
To:     Doug Ledford <dledford@...hat.com>,
        Jason Gunthorpe <jgg@...lanox.com>
Cc:     Leon Romanovsky <leonro@...lanox.com>,
        RDMA mailing list <linux-rdma@...r.kernel.org>,
        Maor Gottlieb <maorg@...lanox.com>,
        Mark Bloch <markb@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>,
        linux-netdev <netdev@...r.kernel.org>
Subject: [PATCH mlx5-next 1/3] net/mlx5: Expose eswitch encap mode

From: Maor Gottlieb <maorg@...lanox.com>

Add API to get the current Eswitch encap mode.
It will be used in downstream patches to check if
flow table can be created with encap support or not.

Signed-off-by: Maor Gottlieb <maorg@...lanox.com>
Signed-off-by: Leon Romanovsky <leonro@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/eswitch.c | 10 ++++++++++
 include/linux/mlx5/eswitch.h                      | 10 ++++++++++
 2 files changed, 20 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
index 9ea0ccfe5ef5..1da7f9569ee8 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -2452,6 +2452,16 @@ u8 mlx5_eswitch_mode(struct mlx5_eswitch *esw)
 }
 EXPORT_SYMBOL_GPL(mlx5_eswitch_mode);
 
+u16 mlx5_eswitch_get_encap_mode(struct mlx5_core_dev *dev)
+{
+	struct mlx5_eswitch *esw;
+
+	esw = dev->priv.eswitch;
+	return ESW_ALLOWED(esw) ? esw->offloads.encap :
+		DEVLINK_ESWITCH_ENCAP_MODE_NONE;
+}
+EXPORT_SYMBOL(mlx5_eswitch_get_encap_mode);
+
 bool mlx5_esw_lag_prereq(struct mlx5_core_dev *dev0, struct mlx5_core_dev *dev1)
 {
 	if ((dev0->priv.eswitch->mode == SRIOV_NONE &&
diff --git a/include/linux/mlx5/eswitch.h b/include/linux/mlx5/eswitch.h
index 0ca77dd1429c..7be43c0fcdc5 100644
--- a/include/linux/mlx5/eswitch.h
+++ b/include/linux/mlx5/eswitch.h
@@ -7,6 +7,7 @@
 #define _MLX5_ESWITCH_
 
 #include <linux/mlx5/driver.h>
+#include <net/devlink.h>
 
 #define MLX5_ESWITCH_MANAGER(mdev) MLX5_CAP_GEN(mdev, eswitch_manager)
 
@@ -60,4 +61,13 @@ u8 mlx5_eswitch_mode(struct mlx5_eswitch *esw);
 struct mlx5_flow_handle *
 mlx5_eswitch_add_send_to_vport_rule(struct mlx5_eswitch *esw,
 				    int vport, u32 sqn);
+
+#ifdef CONFIG_MLX5_ESWITCH
+u16 mlx5_eswitch_get_encap_mode(struct mlx5_core_dev *dev);
+#else  /* CONFIG_MLX5_ESWITCH */
+static inline u16 mlx5_eswitch_get_encap_mode(struct mlx5_core_dev *dev)
+{
+	return DEVLINK_ESWITCH_ENCAP_MODE_NONE;
+}
+#endif /* CONFIG_MLX5_ESWITCH */
 #endif
-- 
2.20.1