From patchwork Sun Feb 15 12:02:38 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Kondratiev X-Patchwork-Id: 5830021 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: X-Original-To: patchwork-linux-wireless@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 0DB34BF440 for ; Sun, 15 Feb 2015 12:04:05 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 6BAD12020F for ; Sun, 15 Feb 2015 12:04:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C57882020E for ; Sun, 15 Feb 2015 12:03:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754793AbbBOMDU (ORCPT ); Sun, 15 Feb 2015 07:03:20 -0500 Received: from sabertooth01.qualcomm.com ([65.197.215.72]:47089 "EHLO sabertooth01.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754749AbbBOMDO (ORCPT ); Sun, 15 Feb 2015 07:03:14 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=qca.qualcomm.com; i=@qca.qualcomm.com; q=dns/txt; s=qcdkim; t=1424001795; x=1455537795; h=from:cc:to:subject:date:message-id:in-reply-to: references; bh=Ynr1grUMlwp91Yb9VvUHcF6B6ieKwNiCovQeOiA9kjc=; b=RySDr0JHBquYL+jRSFyuoIOr3q12gUTw1wujBNRy+7tgtv13rMpPY34I iQbEPLghp5tEsvZ2lecnQvTtpZ+lTi79wKq7GOWZe4HjeP3gHWJuSBSGQ OU2qNCg+MjGvvy0cH/zOVYoq8YVM1Ytj/s+T0ihYvJhCYqQvw98nU/aHa Q=; X-IronPort-AV: E=McAfee;i="5600,1067,7712"; a="83313535" Received: from ironmsg02-r.qualcomm.com ([172.30.46.16]) by sabertooth01.qualcomm.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 15 Feb 2015 04:03:14 -0800 From: Vladimir Kondratiev Cc: Vladimir Kondratiev , linux-wireless@vger.kernel.org, wil6210@qca.qualcomm.com X-IronPort-AV: E=Sophos;i="5.09,581,1418112000"; d="scan'208";a="440813844" Received: from lx-wigig-72.mea.qualcomm.com ([10.18.176.26]) by ironmsg02-R.qualcomm.com with ESMTP; 15 Feb 2015 04:03:12 -0800 To: Kalle Valo Subject: [PATCH 9/9] wil6210: Align Rx buffers on 4*n+2 Date: Sun, 15 Feb 2015 14:02:38 +0200 Message-Id: <1424001758-29529-10-git-send-email-qca_vkondrat@qca.qualcomm.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1424001758-29529-1-git-send-email-qca_vkondrat@qca.qualcomm.com> References: <1424001758-29529-1-git-send-email-qca_vkondrat@qca.qualcomm.com> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Spam-Status: No, score=-6.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID,T_RP_MATCHES_RCVD,UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP For the normal (non-sniffer) mode of operation, align Rx buffer on 4*n+2, so IP header (after 14 bytes of Ethernet header) will start dword aligned. This accelerated IP stack a little bit. Signed-off-by: Vladimir Kondratiev --- drivers/net/wireless/ath/wil6210/txrx.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c index 7f2f560..e1587b3 100644 --- a/drivers/net/wireless/ath/wil6210/txrx.c +++ b/drivers/net/wireless/ath/wil6210/txrx.c @@ -468,8 +468,11 @@ static int wil_rx_refill(struct wil6210_priv *wil, int count) struct vring *v = &wil->vring_rx; u32 next_tail; int rc = 0; + /* 2 bytes headroom in normal operation mode to achieve dword + * alignment for the IP header + */ int headroom = ndev->type == ARPHRD_IEEE80211_RADIOTAP ? - WIL6210_RTAP_SIZE : 0; + WIL6210_RTAP_SIZE : 2; for (; next_tail = wil_vring_next_tail(v), (next_tail != v->swhead) && (count-- > 0);