From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966012AbcHDThO (ORCPT ); Thu, 4 Aug 2016 15:37:14 -0400 Received: from mga09.intel.com ([134.134.136.24]:57313 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965745AbcHDThI (ORCPT ); Thu, 4 Aug 2016 15:37:08 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.28,471,1464678000"; d="scan'208";a="1019815868" From: kan.liang@intel.com To: davem@davemloft.net, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Cc: 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, fw@strlen.de, alexander.duyck@gmail.com, daniel@iogearbox.net, tom@herbertland.com, rdunlap@infradead.org, xiyou.wangcong@gmail.com, hannes@stressinduktion.org, jesse.brandeburg@intel.com, andi@firstfloor.org, Kan Liang Subject: [RFC V2 PATCH 23/25] net/netpolicy: optimize for queue pair Date: Thu, 4 Aug 2016 15:36:27 -0400 Message-Id: <1470339389-8542-24-git-send-email-kan.liang@intel.com> X-Mailer: git-send-email 2.5.5 In-Reply-To: <1470339389-8542-1-git-send-email-kan.liang@intel.com> References: <1470339389-8542-1-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 Some drivers like i40e driver does not support separate Tx and Rx queues as channels. Using Rx queue to stand for the channels, if queue_pair is set by driver. Signed-off-by: Kan Liang --- include/linux/netpolicy.h | 1 + net/core/netpolicy.c | 3 +++ 2 files changed, 4 insertions(+) diff --git a/include/linux/netpolicy.h b/include/linux/netpolicy.h index 00600f8..0eba512 100644 --- a/include/linux/netpolicy.h +++ b/include/linux/netpolicy.h @@ -76,6 +76,7 @@ struct netpolicy_info { enum netpolicy_name cur_policy; unsigned long avail_policy[BITS_TO_LONGS(NET_POLICY_MAX)]; bool has_mix_policy; + bool queue_pair; /* cpu and queue mapping information */ struct netpolicy_sys_info sys_info; /* List of policy objects 0 rx 1 tx */ diff --git a/net/core/netpolicy.c b/net/core/netpolicy.c index dc1edfc..735405c 100644 --- a/net/core/netpolicy.c +++ b/net/core/netpolicy.c @@ -495,6 +495,9 @@ int netpolicy_pick_queue(struct netpolicy_instance *instance, bool is_rx) if (!policy_validate(instance)) return -EINVAL; + if (dev->netpolicy->queue_pair) + is_rx = true; + /* fast path */ rcu_read_lock(); version = (int *)rcu_dereference(netpolicy_sys_map_version); -- 2.5.5