Messages in this thread | | | From | Haiyang Zhang <> | Subject | RE: [PATCH] hyperv: Add netpoll support | Date | Tue, 8 Jul 2014 17:55:35 +0000 |
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> -----Original Message----- > From: Richard Weinberger [mailto:richard@nod.at] > Sent: Tuesday, July 8, 2014 5:32 AM > To: KY Srinivasan; Haiyang Zhang > Cc: devel@linuxdriverproject.org; netdev@vger.kernel.org; linux- > kernel@vger.kernel.org; Richard Weinberger > Subject: [PATCH] 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. > To receive we need to trigger the channel callback which is usally > called via tasklet_schedule(). > > Signed-off-by: Richard Weinberger <richard@nod.at> > --- > drivers/net/hyperv/netvsc_drv.c | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) > > diff --git a/drivers/net/hyperv/netvsc_drv.c > b/drivers/net/hyperv/netvsc_drv.c > index 4fd71b7..367b71e 100644 > --- a/drivers/net/hyperv/netvsc_drv.c > +++ b/drivers/net/hyperv/netvsc_drv.c > @@ -736,6 +736,17 @@ 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) > +{ > + struct net_device_context *net_device_ctx = netdev_priv(net); > + struct hv_device *dev = net_device_ctx->device_ctx; > + > + local_bh_disable(); > + netvsc_channel_cb(dev->channel);
This can only poll the primary channel not the sub channels.
Thanks, - Haiyang
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