netdev - [for-next 06/11] net/mlx5: Added required metadata capability for ipsec

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Date:   Wed,  7 Mar 2018 17:26:09 -0800
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     "David S. Miller" <davem@...emloft.net>,
        Doug Ledford <dledford@...hat.com>
Cc:     netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
        Leon Romanovsky <leonro@...lanox.com>,
        Jason Gunthorpe <jgg@...lanox.com>,
        Aviad Yehezkel <aviadye@...lanox.com>,
        Matan Barak <matanb@...lanox.com>,
        Boris Pismenny <borisp@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>
Subject: [for-next 06/11] net/mlx5: Added required metadata capability for ipsec

From: Aviad Yehezkel <aviadye@...lanox.com>

Currently our device requires additional metadata in packet
to perform ipsec crypto offload.

Signed-off-by: Aviad Yehezkel <aviadye@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c | 6 ++++--
 include/linux/mlx5/accel.h                           | 1 +
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c b/drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c
index e7e28277733d..8de992ba7230 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c
@@ -256,10 +256,12 @@ u32 mlx5_fpga_ipsec_device_caps(struct mlx5_core_dev *mdev)
 	struct mlx5_fpga_device *fdev = mdev->fpga;
 	u32 ret = 0;
 
-	if (mlx5_fpga_is_ipsec_device(mdev))
+	if (mlx5_fpga_is_ipsec_device(mdev)) {
 		ret |= MLX5_ACCEL_IPSEC_CAP_DEVICE;
-	else
+		ret |= MLX5_ACCEL_IPSEC_CAP_REQUIRED_METADATA;
+	} else {
 		return ret;
+	}
 
 	if (!fdev->ipsec)
 		return ret;
diff --git a/include/linux/mlx5/accel.h b/include/linux/mlx5/accel.h
index 601280c782d3..b674af63689b 100644
--- a/include/linux/mlx5/accel.h
+++ b/include/linux/mlx5/accel.h
@@ -38,6 +38,7 @@
 
 enum mlx5_accel_ipsec_caps {
 	MLX5_ACCEL_IPSEC_CAP_DEVICE		= 1 << 0,
+	MLX5_ACCEL_IPSEC_CAP_REQUIRED_METADATA	= 1 << 1,
 	MLX5_ACCEL_IPSEC_CAP_ESP		= 1 << 2,
 	MLX5_ACCEL_IPSEC_CAP_IPV6		= 1 << 3,
 	MLX5_ACCEL_IPSEC_CAP_LSO		= 1 << 4,
-- 
2.14.3