diff -rupN mvapich2-2.3.7-1/src/mpid/ch3/channels/common/include/mv2_arch_hca_detect.h mvapich2-2.3.7-1-w-patch/src/mpid/ch3/channels/common/include/mv2_arch_hca_detect.h
--- mvapich2-2.3.7-1/src/mpid/ch3/channels/common/include/mv2_arch_hca_detect.h	2022-05-16 16:58:22.000000000 +0000
+++ mvapich2-2.3.7-1-w-patch/src/mpid/ch3/channels/common/include/mv2_arch_hca_detect.h	2024-07-26 17:10:52.102212370 +0000
@@ -69,6 +69,7 @@ typedef enum {
         MV2_HCA_MLX_CX_CONNIB,
         MV2_HCA_MLX_CX_EDR,
         MV2_HCA_MLX_CX_HDR,
+        MV2_HCA_MLX_CX_NDR,
         MV2_HCA_MLX_END,
         MV2_HCA_IB_TYPE_END,
 
diff -rupN mvapich2-2.3.7-1/src/mpid/ch3/channels/common/src/detect/hca/mv2_hca_detect.c mvapich2-2.3.7-1-w-patch/src/mpid/ch3/channels/common/src/detect/hca/mv2_hca_detect.c
--- mvapich2-2.3.7-1/src/mpid/ch3/channels/common/src/detect/hca/mv2_hca_detect.c	2022-05-16 16:58:22.000000000 +0000
+++ mvapich2-2.3.7-1-w-patch/src/mpid/ch3/channels/common/src/detect/hca/mv2_hca_detect.c	2024-07-26 17:13:20.613524309 +0000
@@ -106,6 +106,7 @@ static mv2_hca_types_log_t mv2_hca_types
     {MV2_HCA_MLX_CX_FDR,    "MV2_HCA_MLX_CX_FDR"},
     {MV2_HCA_MLX_CX_EDR,    "MV2_HCA_MLX_CX_EDR"},
     {MV2_HCA_MLX_CX_HDR,    "MV2_HCA_MLX_CX_HDR"},
+    {MV2_HCA_MLX_CX_NDR,    "MV2_HCA_MLX_CX_NDR"},
     {MV2_HCA_MLX_CX_CONNIB, "MV2_HCA_MLX_CX_CONNIB"},
     {MV2_HCA_MLX_PCI_X,     "MV2_HCA_MLX_PCI_X"},
 
@@ -228,6 +229,7 @@ const float get_link_speed(uint8_t speed
     case 16: return 14.0; /* FDR */
     case 32: return 25.0; /* EDR */
     case 64: return 50.0; /* HDR */
+    case 128: return 100.0; /* NDR */
     default:
         PRINT_ERROR("Invalid link speed %u\n", speed);
         return 0;    /* Invalid speed */
@@ -360,6 +362,10 @@ mv2_hca_type mv2_new_get_hca_type(struct
         }
         /* mlx4, mlx5 */ 
         switch(rate) {
+            case 400:
+                hca_type = MV2_HCA_MLX_CX_HDR;
+                break;
+
             case 200:
                 hca_type = MV2_HCA_MLX_CX_HDR;
                 break;
@@ -592,6 +598,10 @@ mv2_hca_type mv2_get_hca_type( struct ib
 #endif
         { /* mlx4, mlx5 */ 
             switch(rate) {
+                case 400:
+                    hca_type = MV2_HCA_MLX_CX_HDR;
+                    break;
+
                 case 200:
                     hca_type = MV2_HCA_MLX_CX_HDR;
                     break;