X-Git-Url: https://gerrit.fd.io/r/gitweb?p=csit.git;a=blobdiff_plain;f=resources%2Ftools%2Fdisk-image-builder%2Fnested%2Fimage-patches%2F06-dpdk-support;h=2de4ad6962d7017b09b88e4f3253c213cf4fe405;hp=5990f0925bc08888d0e80a29ea79422259821f00;hb=8c465631f6029b174e6d2549e1305b5b4cb8b8de;hpb=c5b285aebcfc93dcccf3285abbde672cf000e3cc

diff --git a/resources/tools/disk-image-builder/nested/image-patches/06-dpdk-support b/resources/tools/disk-image-builder/nested/image-patches/06-dpdk-support
index 5990f0925b..2de4ad6962 100755
--- a/resources/tools/disk-image-builder/nested/image-patches/06-dpdk-support
+++ b/resources/tools/disk-image-builder/nested/image-patches/06-dpdk-support
@@ -46,10 +46,13 @@ echo 1af4 1000 > /sys/bus/pci/drivers/${TARGET_DRIVER}/new_id
 #
 for dev in $(find /sys/bus/pci/drivers/virtio-pci -type l -name '*:*:*.*' | sed -e 's/.*\///')
 do
-  echo Unbinding $dev from virtio-pci
-  echo $dev > /sys/bus/pci/drivers/virtio-pci/unbind
-  echo Binding $dev to ${TARGET_DRIVER}
-  echo $dev > /sys/bus/pci/drivers/${TARGET_DRIVER}/bind
+  class=$(cat /sys/bus/pci/drivers/virtio-pci/${dev}/class)
+  if [ "$class" = "0x020000" ]; then
+	echo Unbinding $dev from virtio-pci
+	echo $dev > /sys/bus/pci/drivers/virtio-pci/unbind
+	echo Binding $dev to ${TARGET_DRIVER}
+	echo $dev > /sys/bus/pci/drivers/${TARGET_DRIVER}/bind
+  fi
 done
 
 # RCU and IRQ affinity