From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751912AbcGROXY (ORCPT ); Mon, 18 Jul 2016 10:23:24 -0400 Received: from mga09.intel.com ([134.134.136.24]:56650 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751793AbcGROXU (ORCPT ); Mon, 18 Jul 2016 10:23:20 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.28,384,1464678000"; d="scan'208";a="1009027472" From: kan.liang@intel.com To: davem@davemloft.net, linux-kernel@vger.kernel.org, intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org Cc: jeffrey.t.kirsher@intel.com, mingo@redhat.com, peterz@infradead.org, kuznet@ms2.inr.ac.ru, jmorris@namei.org, yoshfuji@linux-ipv6.org, kaber@trash.net, akpm@linux-foundation.org, keescook@chromium.org, viro@zeniv.linux.org.uk, gorcunov@openvz.org, john.stultz@linaro.org, aduyck@mirantis.com, ben@decadent.org.uk, decot@googlers.com, jesse.brandeburg@intel.com, andi@firstfloor.org, Kan Liang Subject: [RFC PATCH 04/30] net/netpolicy: get driver information Date: Sun, 17 Jul 2016 23:55:58 -0700 Message-Id: <1468824984-65318-5-git-send-email-kan.liang@intel.com> X-Mailer: git-send-email 2.5.5 In-Reply-To: <1468824984-65318-1-git-send-email-kan.liang@intel.com> References: <1468824984-65318-1-git-send-email-kan.liang@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Kan Liang Net policy needs to know device information. Currently, it's enough to only get irq information of rx and tx queues. This patch introduces ndo_get_irq_info to do so. Signed-off-by: Kan Liang --- include/linux/netdevice.h | 5 +++++ include/linux/netpolicy.h | 7 +++++++ net/core/netpolicy.c | 14 ++++++++++++++ 3 files changed, 26 insertions(+) diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index ef45dfe..3470943 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1091,6 +1091,9 @@ struct tc_to_netdev { * int (*ndo_netpolicy_init)(struct net_device *dev, * struct netpolicy_info *info); * This function is used to init and get supported policy. + * int (*ndo_get_irq_info)(struct net_device *dev, + * struct netpolicy_dev_info *info); + * This function is used to get irq information of rx and tx queues * */ struct net_device_ops { @@ -1278,6 +1281,8 @@ struct net_device_ops { #ifdef CONFIG_NETPOLICY int (*ndo_netpolicy_init)(struct net_device *dev, struct netpolicy_info *info); + int (*ndo_get_irq_info)(struct net_device *dev, + struct netpolicy_dev_info *info); #endif /* CONFIG_NETPOLICY */ }; diff --git a/include/linux/netpolicy.h b/include/linux/netpolicy.h index ca1f131..fc87d9b 100644 --- a/include/linux/netpolicy.h +++ b/include/linux/netpolicy.h @@ -23,6 +23,13 @@ enum netpolicy_name { extern const char *policy_name[]; +struct netpolicy_dev_info { + u32 rx_num; + u32 tx_num; + u32 *rx_irq; + u32 *tx_irq; +}; + struct netpolicy_info { enum netpolicy_name cur_policy; unsigned long avail_policy[BITS_TO_LONGS(NET_POLICY_MAX)]; diff --git a/net/core/netpolicy.c b/net/core/netpolicy.c index 5f304d5..7c34c8a 100644 --- a/net/core/netpolicy.c +++ b/net/core/netpolicy.c @@ -35,6 +35,20 @@ #include #include +static int netpolicy_get_dev_info(struct net_device *dev, + struct netpolicy_dev_info *d_info) +{ + if (!dev->netdev_ops->ndo_get_irq_info) + return -ENOTSUPP; + return dev->netdev_ops->ndo_get_irq_info(dev, d_info); +} + +static void netpolicy_free_dev_info(struct netpolicy_dev_info *d_info) +{ + kfree(d_info->rx_irq); + kfree(d_info->tx_irq); +} + const char *policy_name[NET_POLICY_MAX] = { "NONE" }; -- 2.5.5