X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvlib%2Flinux%2Fpci.c;h=8af1cdab0d455638685e42531a8b3b6fba96345e;hb=76c6159d83c2dfe29f84dc4b05d399cdbbdf2878;hp=d8cbf7a41632d5f2693e490a91eab63c1a0ad8e7;hpb=34177e87639c62160318fd3957d0575f0a28e526;p=vpp.git

diff --git a/src/vlib/linux/pci.c b/src/vlib/linux/pci.c
index d8cbf7a4163..8af1cdab0d4 100644
--- a/src/vlib/linux/pci.c
+++ b/src/vlib/linux/pci.c
@@ -208,6 +208,7 @@ vlib_pci_get_device_info (vlib_main_t * vm, vlib_pci_addr_t * addr,
   u32 tmp;
   int fd;
   u8 *tmpstr;
+  clib_bitmap_t *bmp = 0;
 
   di = clib_mem_alloc (sizeof (vlib_pci_device_info_t));
   clib_memset (di, 0, sizeof (vlib_pci_device_info_t));
@@ -260,12 +261,22 @@ vlib_pci_get_device_info (vlib_main_t * vm, vlib_pci_addr_t * addr,
   di->numa_node = -1;
   vec_reset_length (f);
   f = format (f, "%v/numa_node%c", dev_dir_name, 0);
-  err = clib_sysfs_read ((char *) f, "%u", &di->numa_node);
+  err = clib_sysfs_read ((char *) f, "%d", &di->numa_node);
   if (err)
     {
       di->numa_node = -1;
       clib_error_free (err);
     }
+  if (di->numa_node == -1)
+    {
+      /* if '/sys/bus/pci/devices/<device id>/numa_node' returns -1 and
+         it is a SMP system, set numa_node to 0. */
+      if ((err = clib_sysfs_read ("/sys/devices/system/node/online", "%U",
+				  unformat_bitmap_list, &bmp)))
+	clib_error_free (err);
+      if (clib_bitmap_count_set_bits (bmp) == 1)
+	di->numa_node = 0;
+    }
 
   vec_reset_length (f);
   f = format (f, "%v/class%c", dev_dir_name, 0);
@@ -362,6 +373,7 @@ error:
   di = 0;
 
 done:
+  vec_free (bmp);
   vec_free (f);
   vec_free (dev_dir_name);
   if (error)