IB/mlx5: Expose XDR speed through MAD

Under MAD query port, Report NDR speed when NDR is supported in the port
capability mask.
Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Reviewed-by: Mark Zhang <markzhang@nvidia.com>
Link: https://lore.kernel.org/r/d30bdec2a66a8a2edd1d84ee61453c58cf346b43.1695204156.git.leon@kernel.orgReviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>

drivers/infiniband/hw/mlx5/mad.c

@@ -619,6 +619,19 @@ int mlx5_query_mad_ifc_port(struct ib_device *ibdev, u32 port,
 		}
 	}
 
+	/* Check if extended speeds 2 (XDR/...) are supported */
+	if (props->port_cap_flags & IB_PORT_CAP_MASK2_SUP &&
+	    props->port_cap_flags2 & IB_PORT_EXTENDED_SPEEDS2_SUP) {
+		ext_active_speed = (out_mad->data[56] >> 4) & 0x6;
+
+		switch (ext_active_speed) {
+		case 2:
+			if (props->port_cap_flags2 & IB_PORT_LINK_SPEED_XDR_SUP)
+				props->active_speed = IB_SPEED_XDR;
+			break;
+		}
+	}
+
 	/* If reported active speed is QDR, check if is FDR-10 */
 	if (props->active_speed == 4) {
 		if (dev->port_caps[port - 1].ext_port_cap &

include/rdma/ib_mad.h

@@ -277,6 +277,8 @@ enum ib_port_capability_mask2_bits {
 	IB_PORT_LINK_WIDTH_2X_SUP		= 1 << 4,
 	IB_PORT_LINK_SPEED_HDR_SUP		= 1 << 5,
 	IB_PORT_LINK_SPEED_NDR_SUP		= 1 << 10,
+	IB_PORT_EXTENDED_SPEEDS2_SUP            = 1 << 11,
+	IB_PORT_LINK_SPEED_XDR_SUP              = 1 << 12,
 };
 
 #define OPA_CLASS_PORT_INFO_PR_SUPPORT BIT(26)