IB/mlx5: Expose NDR speed through MAD

msanalla · jgunthorpe · commit fbdb0ba7051e · 2022-01-05T16:40:35.000-04:00
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>
diff --git 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_device *ibdev, u32 port,
 			    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;
 		}
 	}
 
diff --git 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)

Original file line number	Diff line number	Diff line change
`@@ -584,6 +584,11 @@ int mlx5_query_mad_ifc_port(struct ib_device *ibdev, u32 port,`
`584`	`584`	`props->port_cap_flags2 & IB_PORT_LINK_SPEED_HDR_SUP)`
`585`	`585`	`props->active_speed = IB_SPEED_HDR;`
`586`	`586`	`break;`
	`587`	`+ case 8:`
	`588`	`+ if (props->port_cap_flags & IB_PORT_CAP_MASK2_SUP &&`
	`589`	`+ props->port_cap_flags2 & IB_PORT_LINK_SPEED_NDR_SUP)`
	`590`	`+ props->active_speed = IB_SPEED_NDR;`
	`591`	`+ break;`
`587`	`592`	`}`
`588`	`593`	`}`
`589`	`594`