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Message-ID: <BL0PR2101MB093087AD4A200EEAC63A716FCAD09@BL0PR2101MB0930.namprd21.prod.outlook.com>
Date: Wed, 6 Jan 2021 17:36:52 +0000
From: Haiyang Zhang <haiyangz@...rosoft.com>
To: Long Li <longli@...uxonhyperv.com>,
KY Srinivasan <kys@...rosoft.com>,
Stephen Hemminger <sthemmin@...rosoft.com>,
Wei Liu <wei.liu@...nel.org>,
"David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
"linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC: Long Li <longli@...rosoft.com>
Subject: RE: [PATCH 3/3] hv_netvsc: Process NETDEV_GOING_DOWN on VF hot remove
> -----Original Message-----
> From: Long Li <longli@...uxonhyperv.com>
> Sent: Tuesday, January 5, 2021 8:16 PM
> To: KY Srinivasan <kys@...rosoft.com>; Haiyang Zhang
> <haiyangz@...rosoft.com>; Stephen Hemminger
> <sthemmin@...rosoft.com>; Wei Liu <wei.liu@...nel.org>; David S. Miller
> <davem@...emloft.net>; Jakub Kicinski <kuba@...nel.org>; linux-
> hyperv@...r.kernel.org; netdev@...r.kernel.org; linux-
> kernel@...r.kernel.org
> Cc: Long Li <longli@...rosoft.com>
> Subject: [PATCH 3/3] hv_netvsc: Process NETDEV_GOING_DOWN on VF hot
> remove
>
> From: Long Li <longli@...rosoft.com>
>
> On VF hot remove, NETDEV_GOING_DOWN is sent to notify the VF is about
> to go down. At this time, the VF is still sending/receiving traffic and we
> request the VSP to switch datapath.
>
> On completion, the datapath is switched to synthetic and we can proceed
> with VF hot remove.
>
> Signed-off-by: Long Li <longli@...rosoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@...rosoft.com>
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