netdev - [PATCH rdma-next 3/6] IB/mlx5: Add support for 800G

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Date: Wed, 20 Sep 2023 13:07:42 +0300
From: Leon Romanovsky <leon@...nel.org>
To: Jason Gunthorpe <jgg@...dia.com>
Cc: Patrisious Haddad <phaddad@...dia.com>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	linux-rdma@...r.kernel.org,
	Mark Zhang <markzhang@...dia.com>,
	netdev@...r.kernel.org,
	Or Har-Toov <ohartoov@...dia.com>,
	Paolo Abeni <pabeni@...hat.com>,
	Saeed Mahameed <saeedm@...dia.com>
Subject: [PATCH rdma-next 3/6] IB/mlx5: Add support for 800G_8X lane speed

From: Patrisious Haddad <phaddad@...dia.com>

Add a check for 800G_8X speed when querying PTYS and report it back
correctly when needed.

Signed-off-by: Patrisious Haddad <phaddad@...dia.com>
Reviewed-by: Mark Zhang <markzhang@...dia.com>
Signed-off-by: Leon Romanovsky <leonro@...dia.com>
---
 drivers/infiniband/hw/mlx5/main.c              | 4 ++++
 drivers/net/ethernet/mellanox/mlx5/core/port.c | 1 +
 include/linux/mlx5/port.h                      | 1 +
 3 files changed, 6 insertions(+)

diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index f9286820ad3b..830dac95c163 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -482,6 +482,10 @@ static int translate_eth_ext_proto_oper(u32 eth_proto_oper, u16 *active_speed,
 		*active_width = IB_WIDTH_4X;
 		*active_speed = IB_SPEED_NDR;
 		break;
+	case MLX5E_PROT_MASK(MLX5E_800GAUI_8_800GBASE_CR8_KR8):
+		*active_width = IB_WIDTH_8X;
+		*active_speed = IB_SPEED_NDR;
+		break;
 	default:
 		return -EINVAL;
 	}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/port.c b/drivers/net/ethernet/mellanox/mlx5/core/port.c
index be70d1f23a5d..43423543f34c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/port.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/port.c
@@ -1102,6 +1102,7 @@ static const u32 mlx5e_ext_link_speed[MLX5E_EXT_LINK_MODES_NUMBER] = {
 	[MLX5E_100GAUI_1_100GBASE_CR_KR] = 100000,
 	[MLX5E_200GAUI_2_200GBASE_CR2_KR2] = 200000,
 	[MLX5E_400GAUI_4_400GBASE_CR4_KR4] = 400000,
+	[MLX5E_800GAUI_8_800GBASE_CR8_KR8] = 800000,
 };
 
 int mlx5_port_query_eth_proto(struct mlx5_core_dev *dev, u8 port, bool ext,
diff --git a/include/linux/mlx5/port.h b/include/linux/mlx5/port.h
index 98b2e1e149f9..794001ebd003 100644
--- a/include/linux/mlx5/port.h
+++ b/include/linux/mlx5/port.h
@@ -117,6 +117,7 @@ enum mlx5e_ext_link_mode {
 	MLX5E_200GAUI_2_200GBASE_CR2_KR2	= 13,
 	MLX5E_400GAUI_8				= 15,
 	MLX5E_400GAUI_4_400GBASE_CR4_KR4	= 16,
+	MLX5E_800GAUI_8_800GBASE_CR8_KR8	= 19,
 	MLX5E_EXT_LINK_MODES_NUMBER,
 };
 
-- 
2.41.0