From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754816AbaGIH6j (ORCPT ); Wed, 9 Jul 2014 03:58:39 -0400 Received: from mail.sigma-star.at ([95.130.255.111]:14385 "EHLO mail.sigma-star.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753838AbaGIH6i (ORCPT ); Wed, 9 Jul 2014 03:58:38 -0400 From: Richard Weinberger To: kys@microsoft.com, haiyangz@microsoft.com Cc: romieu@fr.zoreil.com, devel@linuxdriverproject.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Richard Weinberger Subject: [PATCH v2] hyperv: Add netpoll support Date: Wed, 9 Jul 2014 09:58:22 +0200 Message-Id: <1404892702-11094-1-git-send-email-richard@nod.at> X-Mailer: git-send-email 2.0.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- drivers/net/hyperv/netvsc_drv.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index 4fd71b7..45218d5 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -736,6 +736,14 @@ 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. */ + return; +} +#endif static const struct ethtool_ops ethtool_ops = { .get_drvinfo = netvsc_get_drvinfo, @@ -751,6 +759,9 @@ 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 }; /* -- 2.0.1