scripts/nvmf_perf: get systems NIC numa node function

Signed-off-by: Karol Latecki <karol.latecki@intel.com>
Change-Id: I254bd86336a5effaa7c78559b2b654809a673712
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13513
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>

scripts/perf/nvmf/run_nvmf.py

@@ -93,6 +93,9 @@ class Server:
 
         self.local_nic_info = extract_network_elements(pci_info)
 
+    def get_nic_numa_node(self, nic_name):
+        return int(self.exec_cmd(["cat", "/sys/class/net/%s/device/numa_node" % nic_name]))
+
     # pylint: disable=R0201
     def exec_cmd(self, cmd, stderr_redirect=False, change_dir=None):
         return ""