From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E625CC433DB for ; Sun, 31 Jan 2021 07:59:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A084564E0A for ; Sun, 31 Jan 2021 07:59:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229969AbhAaH7S (ORCPT ); Sun, 31 Jan 2021 02:59:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34754 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229471AbhAaHz4 (ORCPT ); Sun, 31 Jan 2021 02:55:56 -0500 Received: from mail-pj1-x1034.google.com (mail-pj1-x1034.google.com [IPv6:2607:f8b0:4864:20::1034]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 88656C0613D6 for ; Sat, 30 Jan 2021 23:55:12 -0800 (PST) Received: by mail-pj1-x1034.google.com with SMTP id md11so8496379pjb.0 for ; Sat, 30 Jan 2021 23:55:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=s8BZjK3yyKd70r8rMjExXPdv17zezvJcgaVaU9wbfEs=; b=jsXPb6nzV+mCgEeEKCe1zY7l7PnTSQfJ/9DIpbLoOns7+tr5uQN0P8Vnj7162vwsnL VMfAM8p7nu+8byKGt98jxB0rrsi9bKvku3WRtVcpfscDg6Pr6++K+xdnCC5yY0X72j/x JYLNWIhk25ZlnZkX2ruYW7KBE54y+G2/Mrp5BsR0emuCaitd8UOHAWouhwJZJUhJtWNI ig7WE5VWzGYc4SaQoabbg9erCi/DxW2BhXkedGaVlZwGdQvYKM8qZ/bSsBjLNgjahrgo UDBYaFD7eoAQMQkK9PH/OQMHvkE8GixQ/pEYL9jqwNTLbSV8icjON5r7gnKbD1n6l/81 Hvrg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=s8BZjK3yyKd70r8rMjExXPdv17zezvJcgaVaU9wbfEs=; b=Z5Gh7qv0d0oZZuoKayXpyMVLBff3trKO+cTN+eiA5klAWrJQzz4N84qWDDv8ZwnFUp 5IicHPlLjNvO8ldUOBap7O1O+Csqvs/41hwI7OJi38PEf5bovm6OFixYxx7h4E1oux6v 7GPngqopHWp9WG+ds7TzPU0wTsk9fD1n6usqYf9vM+rJY2FWymyqbOJSDs1VZ5xLjQl2 baD+trghhXVtB2cmd+DJHnbaXJWd34qmoXN94h5ytdUQC4eOM+51azF36B2Ar0q+qZvS ULGXcdZpn+ArDj1dEn9B3LLZPe6SEdiW509Wog1f3hmwp5PT7Kxae9U9tUVEETM9qDCS aVTw== X-Gm-Message-State: AOAM532wYGzOCRgdEuIfQuxZh/RqgCkbrN2p27UjutR7RAdvrwyY+nX6 /1e/qvUcwl99lYefZM3a6oY= X-Google-Smtp-Source: ABdhPJzsER2j3ut5nyKv8clJ7ZChhAVNALxWHV70uV2V/iXGaStkHHMpcqUtmXREpq2ld2X819HLfw== X-Received: by 2002:a17:90a:5403:: with SMTP id z3mr12096249pjh.198.1612079712116; Sat, 30 Jan 2021 23:55:12 -0800 (PST) Received: from pek-lpggp6.wrs.com (unknown-105-123.windriver.com. [147.11.105.123]) by smtp.gmail.com with ESMTPSA id h23sm13931290pgh.64.2021.01.30.23.55.05 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Sat, 30 Jan 2021 23:55:11 -0800 (PST) From: Kevin Hao To: "David S . Miller" , Jakub Kicinski Cc: netdev@vger.kernel.org, Sunil Goutham , Geetha sowjanya , Subbaraya Sundeep , hariprasad Subject: [PATCH net-next v2 3/4] net: octeontx2: Use napi_alloc_frag_align() to avoid the memory waste Date: Sun, 31 Jan 2021 15:44:25 +0800 Message-Id: <20210131074426.44154-4-haokexin@gmail.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210131074426.44154-1-haokexin@gmail.com> References: <20210131074426.44154-1-haokexin@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The napi_alloc_frag_align() will guarantee that a correctly align buffer address is returned. So use this function to simplify the buffer alloc and avoid the unnecessary memory waste. Signed-off-by: Kevin Hao --- v2: No change. drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c index 5ddedc3b754d..cbd68fa9f1d6 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c @@ -488,11 +488,10 @@ dma_addr_t __otx2_alloc_rbuf(struct otx2_nic *pfvf, struct otx2_pool *pool) dma_addr_t iova; u8 *buf; - buf = napi_alloc_frag(pool->rbsize + OTX2_ALIGN); + buf = napi_alloc_frag_align(pool->rbsize, OTX2_ALIGN); if (unlikely(!buf)) return -ENOMEM; - buf = PTR_ALIGN(buf, OTX2_ALIGN); iova = dma_map_single_attrs(pfvf->dev, buf, pool->rbsize, DMA_FROM_DEVICE, DMA_ATTR_SKIP_CPU_SYNC); if (unlikely(dma_mapping_error(pfvf->dev, iova))) { -- 2.29.2