From: Maher Sanalla <msanalla@nvidia.com>
Date: Wed, 15 Dec 2021 09:54:31 +0200
Subject: IB/mlx5: Expose NDR speed through MAD
Patch-mainline: v5.17-rc1
Git-commit: fbdb0ba7051e9b0881708c1c7bb491363cb7e486
References: bsc#1196930

Under MAD query port, Report NDR speed when NDR is supported in the port
capability mask.

Link: https://lore.kernel.org/r/a2ab630d2a634547db9b581faa9d65da2edb9d05.1639554831.git.leonro@nvidia.com
Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Michael Guralnik <michaelgur@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/hw/mlx5/mad.c |    5 +++++
 include/rdma/ib_mad.h            |    1 +
 2 files changed, 6 insertions(+)

--- a/drivers/infiniband/hw/mlx5/mad.c
+++ b/drivers/infiniband/hw/mlx5/mad.c
@@ -584,6 +584,11 @@ int mlx5_query_mad_ifc_port(struct ib_de
 			    props->port_cap_flags2 & IB_PORT_LINK_SPEED_HDR_SUP)
 				props->active_speed = IB_SPEED_HDR;
 			break;
+		case 8:
+			if (props->port_cap_flags & IB_PORT_CAP_MASK2_SUP &&
+			    props->port_cap_flags2 & IB_PORT_LINK_SPEED_NDR_SUP)
+				props->active_speed = IB_SPEED_NDR;
+			break;
 		}
 	}
 
--- a/include/rdma/ib_mad.h
+++ b/include/rdma/ib_mad.h
@@ -276,6 +276,7 @@ enum ib_port_capability_mask2_bits {
 	IB_PORT_SWITCH_PORT_STATE_TABLE_SUP	= 1 << 3,
 	IB_PORT_LINK_WIDTH_2X_SUP		= 1 << 4,
 	IB_PORT_LINK_SPEED_HDR_SUP		= 1 << 5,
+	IB_PORT_LINK_SPEED_NDR_SUP		= 1 << 10,
 };
 
 #define OPA_CLASS_PORT_INFO_PR_SUPPORT BIT(26)