netdev - [PATCH mlx5-next 09/16] net/mlx5: Expose IP-in-IP TX and RX capability bits

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Message-ID: <20201120230339.651609-10-saeedm@nvidia.com>
Date:   Fri, 20 Nov 2020 15:03:32 -0800
From:   Saeed Mahameed <saeedm@...dia.com>
To:     Saeed Mahameed <saeedm@...dia.com>,
        Leon Romanovsky <leonro@...lanox.com>
CC:     <netdev@...r.kernel.org>, <linux-rdma@...r.kernel.org>,
        Aya Levin <ayal@...dia.com>, Moshe Shemesh <moshe@...dia.com>
Subject: [PATCH mlx5-next 09/16] net/mlx5: Expose IP-in-IP TX and RX capability bits

From: Aya Levin <ayal@...dia.com>

Expose FW indication that it supports stateless offloads for IP over IP
tunneled packets per direction. In some HW like ConnectX-4 IP-in-IP
support is not symmetric, it supports steering on the inner header but
it doesn't TX-Checksum and TSO. Add IP-in-IP capability per direction to
cover this case as well.

Note: only if both indications are turned on, the global
tunnel_stateless_ip_over_ip is on too.

Signed-off-by: Aya Levin <ayal@...dia.com>
Reviewed-by: Moshe Shemesh <moshe@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
 include/linux/mlx5/mlx5_ifc.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 3ace1976514c..96888f9f822d 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -913,7 +913,10 @@ struct mlx5_ifc_per_protocol_networking_offload_caps_bits {
 	u8         tunnel_stateless_ipv4_over_vxlan[0x1];
 	u8         tunnel_stateless_ip_over_ip[0x1];
 	u8         insert_trailer[0x1];
-	u8         reserved_at_2b[0x5];
+	u8         reserved_at_2b[0x1];
+	u8         tunnel_stateless_ip_over_ip_rx[0x1];
+	u8         tunnel_stateless_ip_over_ip_tx[0x1];
+	u8         reserved_at_2e[0x2];
 	u8         max_vxlan_udp_ports[0x8];
 	u8         reserved_at_38[0x6];
 	u8         max_geneve_opt_len[0x1];
-- 
2.26.2