From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755351AbaGHSka (ORCPT ); Tue, 8 Jul 2014 14:40:30 -0400 Received: from a.ns.miles-group.at ([95.130.255.143]:65276 "EHLO radon.swed.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754747AbaGHSk3 (ORCPT ); Tue, 8 Jul 2014 14:40:29 -0400 Message-ID: <53BC3B1A.4000009@nod.at> Date: Tue, 08 Jul 2014 20:40:26 +0200 From: Richard Weinberger User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Haiyang Zhang , KY Srinivasan CC: "devel@linuxdriverproject.org" , "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] hyperv: Add netpoll support References: <1404811947-5174-1-git-send-email-richard@nod.at> <6869a7dec43b4ba6b38692874f67279a@DFM-DB3MBX15-06.exchange.corp.microsoft.com> In-Reply-To: <6869a7dec43b4ba6b38692874f67279a@DFM-DB3MBX15-06.exchange.corp.microsoft.com> X-Enigmail-Version: 1.6 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am 08.07.2014 19:55, schrieb Haiyang Zhang: > > >> -----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 >> --- >> 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. Sub channels in terms of one channel per VCPU as KY said? *confused*, //richard