[dpdk-dev] [PATCH v3] tools: fix issue with virtio interfaces

[souvikdey33 <sodey@sonusnet.com>]

This change is required to have the interface name for virtio interfaces.
When we execute the status command the for virtio inerfaces we get
Sample output without the change:
0000:00:04.0 'Virtio network device' if= drv=virtio-pci unused=virtio_pci,igb_uio
Though for other drivers this works.
Sample output with the change:
0000:00:04.0 'Virtio network device' if=eth0 drv=virtio-pci unused=virtio_pci,igb_uio

souvikdey33 (1):
  Signed-off-by: Souvik Dey <sodey@sonusnet.com>

 tools/dpdk-devbind.py | 12 ++++++++++++
 1 file changed, 12 insertions(+)

-- 
>From 1fb8e8896ca8d5b33bdcc875231bfb5ff72550c6 Mon Sep 17 00:00:00 2001
From: souvikdey33 <sodey@sonusnet.com>
Date: Fri, 26 Aug 2016 07:27:43 -0400
Subject: [PATCH v3] Signed-off-by: Souvik Dey <sodey@sonusnet.com>

When we execute the status command the for virtio inerfaces the interface name is not shown.
Sample output without the change.
0000:00:04.0 'Virtio network device' if= drv=virtio-pci unused=virtio_pci,igb_uio
Though for other this works.

Fixes: e2af2c716077 ("Signed-off-by: Souvik Dey <sodey@sonusnet.com>")
---
 tools/dpdk-devbind.py | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/tools/dpdk-devbind.py b/tools/dpdk-devbind.py
index b69ca2a..c0b46ee 100755
--- a/tools/dpdk-devbind.py
+++ b/tools/dpdk-devbind.py
@@ -36,6 +36,7 @@ import sys
 import os
 import getopt
 import subprocess
+
 from os.path import exists, abspath, dirname, basename
 
 # The PCI base class for NETWORK devices
@@ -222,8 +223,19 @@ def get_pci_device_details(dev_id):
         device[name] = value
     # check for a unix interface name
     sys_path = "/sys/bus/pci/devices/%s/net/" % dev_id
+    # the path for virtio devices are different, so get the correct path
+    virtio = "/sys/bus/pci/devices/%s/" % dev_id
+    ls = subprocess.Popen(['ls', virtio], stdout=subprocess.PIPE)
+    grep = subprocess.Popen('grep virt'.split(), stdin=ls.stdout,
+                            stdout=subprocess.PIPE)
+    ls.stdout.close()
+    virtio = grep.communicate()[0].rstrip()
+    ls.wait()
+    virtio_sys_path = "/sys/bus/pci/devices/%s/%s/net/" % (dev_id, virtio)
     if exists(sys_path):
         device["Interface"] = ",".join(os.listdir(sys_path))
+    elif exists(virtio_sys_path):
+        device["Interface"] = ",".join(os.listdir(virtio_sys_path))
     else:
         device["Interface"] = ""
     # check if a port is used for ssh connection
-- 
2.9.3.windows.1