| From 191e49d049c8fcf7c15737611ef91454747cde2f Mon Sep 17 00:00:00 2001 |
| From: Haiyang Zhang <haiyangz@microsoft.com> |
| Date: Wed, 2 Feb 2011 13:42:58 -0800 |
| Subject: [PATCH] staging: hv: Enable sending GARP packet after live migration |
| |
| commit 7c161d0b900ea9bd9fc5ea5d3fa9916e9eb0dd88 upstream. |
| |
| The hv_netvsc gets RNDIS_STATUS_MEDIA_CONNECT event after the VM |
| is live migrated. Adding call to netif_notify_peers() for this event |
| to send GARP (Gratuitous ARP) to notify network peers. Otherwise, |
| the VM's network connection may stop after a live migration. |
| |
| This patch should also be applied to stable kernel 2.6.32 and later. |
| |
| Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> |
| Signed-off-by: Hank Janssen <hjanssen@microsoft.com> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
| Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> |
| |
| diff --git a/drivers/staging/hv/netvsc_drv.c b/drivers/staging/hv/netvsc_drv.c |
| index 91e413e..d6940f4 100644 |
| --- a/drivers/staging/hv/netvsc_drv.c |
| +++ b/drivers/staging/hv/netvsc_drv.c |
| @@ -286,6 +286,7 @@ static void netvsc_linkstatus_callback(struct hv_device *device_obj, |
| if (status == 1) { |
| netif_carrier_on(net); |
| netif_wake_queue(net); |
| + netif_notify_peers(net); |
| } else { |
| netif_carrier_off(net); |
| netif_stop_queue(net); |
| -- |
| 1.7.4.4 |
| |
