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authorRichard Weinberger <richard@nod.at>2014-07-09 16:23:59 +0200
committerDavid S. Miller <davem@davemloft.net>2014-07-09 16:52:49 -0700
commit316158feff0078b266d6e423adb016d12eb96a5a (patch)
tree9f7ed15560298996a753b99209383d0d8ab3af24 /drivers/net/hyperv/netvsc_drv.c
parent917ac48d94dfc9879197e70300230440bd820d3c (diff)
downloadblackbird-op-linux-316158feff0078b266d6e423adb016d12eb96a5a.tar.gz
blackbird-op-linux-316158feff0078b266d6e423adb016d12eb96a5a.zip
hyperv: Add netpoll support
In order to have at least a netconsole to debug kernel issues on Windows Azure this patch implements netpoll support. Sending packets is easy, netvsc_start_xmit() does already everything needed. Signed-off-by: Richard Weinberger <richard@nod.at> Acked-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/hyperv/netvsc_drv.c')
-rw-r--r--drivers/net/hyperv/netvsc_drv.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index 9b27ca8c1d39..a9c5eaadc426 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -749,6 +749,14 @@ static int netvsc_set_mac_addr(struct net_device *ndev, void *p)
return err;
}
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void netvsc_poll_controller(struct net_device *net)
+{
+ /* As netvsc_start_xmit() works synchronous we don't have to
+ * trigger anything here.
+ */
+}
+#endif
static const struct ethtool_ops ethtool_ops = {
.get_drvinfo = netvsc_get_drvinfo,
@@ -764,6 +772,9 @@ static const struct net_device_ops device_ops = {
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = netvsc_set_mac_addr,
.ndo_select_queue = netvsc_select_queue,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = netvsc_poll_controller,
+#endif
};
/*
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