[SWDEV-534605] Increase max devices supported and drm test link type (#625)

Increased the AMDSMI_MAX_DEVICES to 64 to accomodate all
devices in CPX mode. The link type has been modified in
amd-smi to match with rocm-smi types, updated the same
for drm tests.

---------

Signed-off-by: Bindhiya Kanangot Balakrishnan <Bindhiya.KanangotBalakrishnan@amd.com>

example/amd_smi_drm_example.cc

@@ -291,8 +291,8 @@ static const std::map<processor_type_t, std::string>
 static const std::map<amdsmi_link_type_t, std::string>
   link_type_map = {
   {AMDSMI_LINK_TYPE_INTERNAL, "INTERNAL"},
-  {AMDSMI_LINK_TYPE_XGMI, "XGMI"},
   {AMDSMI_LINK_TYPE_PCIE, "PCIE"},
+  {AMDSMI_LINK_TYPE_XGMI, "XGMI"},
   {AMDSMI_LINK_TYPE_NOT_APPLICABLE, "NOT_APPLICABLE"},
   {AMDSMI_LINK_TYPE_UNKNOWN, "UNKNOWN"}
 };
@@ -1959,8 +1959,8 @@ int main() {
             // Get nearest GPUs
             const char *topology_link_type_str[] = {
                 "AMDSMI_LINK_TYPE_INTERNAL",
-                "AMDSMI_LINK_TYPE_XGMI",
                 "AMDSMI_LINK_TYPE_PCIE",
+                "AMDSMI_LINK_TYPE_XGMI",
                 "AMDSMI_LINK_TYPE_NOT_APPLICABLE",
                 "AMDSMI_LINK_TYPE_UNKNOWN",
             };

example/amd_smi_nodrm_example.cc

@@ -334,8 +334,8 @@ int main() {
             // Get nearest GPUs
             const char *topology_link_type_str[] = {
                 "AMDSMI_LINK_TYPE_INTERNAL",
-                "AMDSMI_LINK_TYPE_XGMI",
                 "AMDSMI_LINK_TYPE_PCIE",
+                "AMDSMI_LINK_TYPE_XGMI",
                 "AMDSMI_LINK_TYPE_NOT_APPLICABLE",
                 "AMDSMI_LINK_TYPE_UNKNOWN",
             };

include/amd_smi/amdsmi.h

@@ -2092,7 +2092,7 @@ typedef struct {
  */
 typedef struct {
     uint32_t count;
-    amdsmi_processor_handle processor_list[AMDSMI_MAX_DEVICES+1];
+    amdsmi_processor_handle processor_list[AMDSMI_MAX_DEVICES * AMDSMI_MAX_NUM_XCP];
     uint64_t reserved[14];
 } amdsmi_topology_nearest_t;
 

py-interface/amdsmi_wrapper.py

@@ -2204,8 +2204,8 @@ struct_amdsmi_topology_nearest_t._pack_ = 1 # source:False
 struct_amdsmi_topology_nearest_t._fields_ = [
     ('count', ctypes.c_uint32),
     ('PADDING_0', ctypes.c_ubyte * 4),
-    ('processor_list', ctypes.POINTER(None) * 32),
-    ('reserved', ctypes.c_uint64 * 15),
+    ('processor_list', ctypes.POINTER(None) * 256),
+    ('reserved', ctypes.c_uint64 * 14),
 ]
 
 amdsmi_topology_nearest_t = struct_amdsmi_topology_nearest_t

src/amd_smi/amd_smi.cc

@@ -4807,8 +4807,8 @@ amdsmi_get_link_topology_nearest(amdsmi_processor_handle processor_handle,
     }
 
 
-    uint32_t device_counter(AMDSMI_MAX_DEVICES);
-    amdsmi_processor_handle device_list[AMDSMI_MAX_DEVICES];
+    uint32_t device_counter(AMDSMI_MAX_DEVICES * AMDSMI_MAX_NUM_XCP);
+    amdsmi_processor_handle device_list[AMDSMI_MAX_DEVICES * AMDSMI_MAX_NUM_XCP];
     for (auto socket_idx = uint32_t(0); socket_idx < socket_counter; ++socket_idx) {
         if (auto api_status = amdsmi_get_processor_handles(socket_list[socket_idx], &device_counter, device_list);
             (api_status != amdsmi_status_t::AMDSMI_STATUS_SUCCESS)) {
@@ -4856,14 +4856,14 @@ amdsmi_get_link_topology_nearest(amdsmi_processor_handle processor_handle,
     /*
      *  Note: The link topology table is sorted by the number of hops and link weight.
      */
-    topology_nearest_info->processor_list[AMDSMI_MAX_DEVICES] = {nullptr};
+    topology_nearest_info->processor_list[AMDSMI_MAX_DEVICES * AMDSMI_MAX_NUM_XCP] = {nullptr};
     topology_nearest_info->count = static_cast<uint32_t>(link_topology_order.size());
     auto topology_nearest_counter = uint32_t(0);
     while (!link_topology_order.empty()) {
         auto link_info = link_topology_order.top();
         link_topology_order.pop();
 
-        if (topology_nearest_counter < AMDSMI_MAX_DEVICES) {
+        if (topology_nearest_counter < (AMDSMI_MAX_DEVICES * AMDSMI_MAX_NUM_XCP)) {
             topology_nearest_info->processor_list[topology_nearest_counter++] = link_info.target_processor_handle;
         }
     }