From: Leon Romanovsky <leon@kernel.org>
To: Doug Ledford <dledford@redhat.com>, Jason Gunthorpe <jgg@nvidia.com>
Cc: Meir Lichtinger <meirl@mellanox.com>, linux-rdma@vger.kernel.org
Subject: [PATCH rdma-next 2/2] IB/mlx5: Add support for NDR link speed
Date: Mon, 26 Oct 2020 15:37:38 +0200 [thread overview]
Message-ID: <20201026133738.1340432-3-leon@kernel.org> (raw)
In-Reply-To: <20201026133738.1340432-1-leon@kernel.org>
From: Meir Lichtinger <meirl@mellanox.com>
The IBTA specification has new speed - NDR. That speed supports signaling
rate of 100Gb. mlx5 IB driver translates link modes reported by ConnectX
device to IB speed and width. Added translation of new 100Gb, 200Gb and
400Gb link modes to NDR IB type and width of x1, x2 or x4 respectively.
Signed-off-by: Meir Lichtinger <meirl@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
drivers/infiniband/hw/mlx5/main.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index bcee10c9d9a8..2dbd879bf841 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -419,10 +419,22 @@ static int translate_eth_ext_proto_oper(u32 eth_proto_oper, u16 *active_speed,
*active_width = IB_WIDTH_2X;
*active_speed = IB_SPEED_HDR;
break;
+ case MLX5E_PROT_MASK(MLX5E_100GAUI_1_100GBASE_CR_KR):
+ *active_width = IB_WIDTH_1X;
+ *active_speed = IB_SPEED_NDR;
+ break;
case MLX5E_PROT_MASK(MLX5E_200GAUI_4_200GBASE_CR4_KR4):
*active_width = IB_WIDTH_4X;
*active_speed = IB_SPEED_HDR;
break;
+ case MLX5E_PROT_MASK(MLX5E_200GAUI_2_200GBASE_CR2_KR2):
+ *active_width = IB_WIDTH_2X;
+ *active_speed = IB_SPEED_NDR;
+ break;
+ case MLX5E_PROT_MASK(MLX5E_400GAUI_4_400GBASE_CR4_KR4):
+ *active_width = IB_WIDTH_4X;
+ *active_speed = IB_SPEED_NDR;
+ break;
default:
return -EINVAL;
}
--
2.26.2
next prev parent reply other threads:[~2020-10-26 13:37 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-26 13:37 [PATCH rdma-next 0/2] Extra patches with NDR support Leon Romanovsky
2020-10-26 13:37 ` [PATCH rdma-next 1/2] IB/core: Add support for NDR link speed Leon Romanovsky
2020-10-26 13:37 ` Leon Romanovsky [this message]
2020-11-02 19:50 ` [PATCH rdma-next 0/2] Extra patches with NDR support Jason Gunthorpe
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