[PATCH rdma-next 0/2] Extra patches with NDR support

[PATCH rdma-next 0/2] Extra patches with NDR support

[Leon Romanovsky]

From: Leon Romanovsky <leonro@nvidia.com>

Addition to the IPoIB patches https://lore.kernel.org/linux-rdma/20201026132904.1338526-1-leon@kernel.org/T/#u

Thanks

Meir Lichtinger (2):
  IB/core: Add support for NDR link speed
  IB/mlx5: Add support for NDR link speed

 drivers/infiniband/core/sysfs.c   |  4 ++++
 drivers/infiniband/hw/mlx5/main.c | 12 ++++++++++++
 2 files changed, 16 insertions(+)

--
2.26.2

[PATCH rdma-next 1/2] IB/core: Add support for NDR link speed

[Leon Romanovsky]

From: Meir Lichtinger <meirl@mellanox.com>

Add new IBTA speed NDR, supporting signaling rate of 100Gb.

Signed-off-by: Meir Lichtinger <meirl@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
 drivers/infiniband/core/sysfs.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c
index 914cddea525d..2f032e79f36f 100644
--- a/drivers/infiniband/core/sysfs.c
+++ b/drivers/infiniband/core/sysfs.c
@@ -273,6 +273,10 @@ static ssize_t rate_show(struct ib_port *p, struct port_attribute *unused,
 		speed = " HDR";
 		rate = 500;
 		break;
+	case IB_SPEED_NDR:
+		speed = " NDR";
+		rate = 1000;
+		break;
 	case IB_SPEED_SDR:
 	default:		/* default to SDR for invalid rates */
 		speed = " SDR";
-- 
2.26.2

[PATCH rdma-next 2/2] IB/mlx5: Add support for NDR link speed

[Leon Romanovsky]

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

Re: [PATCH rdma-next 0/2] Extra patches with NDR support

[Jason Gunthorpe]

On Mon, Oct 26, 2020 at 03:37:36PM +0200, Leon Romanovsky wrote:
> From: Leon Romanovsky <leonro@nvidia.com>
> 
> Addition to the IPoIB patches https://lore.kernel.org/linux-rdma/20201026132904.1338526-1-leon@kernel.org/T/#u
> 
> Thanks
> 
> Meir Lichtinger (2):
>   IB/core: Add support for NDR link speed
>   IB/mlx5: Add support for NDR link speed

Applied to for-next, thanks

Jason