[dpdk-dev] [RFC 2/3] usertools: add hv_uio_setup script
Stephen Hemminger
stephen at networkplumber.org
Fri Jan 5 00:16:35 CET 2018
From: Stephen Hemminger <sthemmin at microsoft.com>
Small script to rebind netvsc kernel device to Hyper-V
networking PMD. The existing dev_bind.py script is PCI specific
and won't work with VMBUS.
Signed-off-by: Stephen Hemminger <sthemmin at microsoft.com>
---
usertools/hv_uio_setup.sh | 39 +++++++++++++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
create mode 100755 usertools/hv_uio_setup.sh
diff --git a/usertools/hv_uio_setup.sh b/usertools/hv_uio_setup.sh
new file mode 100755
index 000000000000..fc56ec6f9273
--- /dev/null
+++ b/usertools/hv_uio_setup.sh
@@ -0,0 +1,39 @@
+#! /bin/bash
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2018 Microsoft Corporation
+
+module=uio_hv_generic
+guid="f8615163-df3e-46c5-913f-f2d2f965ed0e"
+
+if [ $# -ne 1 ]; then
+ echo "Usage: $0 ethN"
+ exit 1
+fi
+
+syspath=/sys/class/net/$1/device
+devpath=$(readlink $syspath)
+if [ $? -ne 0 ]; then
+ echo "$1 no device present"
+ exit 1
+fi
+guid=$(basename $devpath)
+
+driver=$(readlink $syspath/driver)
+if [ $? -ne 0 ]; then
+ echo "$1 driver not found"
+ exit 1
+fi
+existing=$(basename $driver)
+
+if [ "$existing" != "hv_netvsc" ]; then
+ echo "$1 controlled by $existing"
+ exit 1
+fi
+
+if [ ! -d /sys/module/$module ]; then
+ modprobe $module
+ echo $guid >/sys/bus/vmbus/drivers/uio_hv_generic/new_id
+fi
+
+echo $guid > /sys/bus/vmbus/drivers/$existing/unbind
+echo $guid > /sys/bus/vmbus/drivers/$module/bind
--
2.15.1
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