From patchwork Thu Jun 29 12:02:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yunsheng Lin X-Patchwork-Id: 13296934 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B0366EB64D9 for ; Thu, 29 Jun 2023 12:05:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=LH5iGPAbycA5TuwWsjd2U/ClA+3kurHLgIJj6q0VPco=; b=0izeJIoCTPHcV9 5Uld34Iejj2aOUGfUfAYfIXLMmezIZKfqMstyy9jFbirf3a7mPkkojlm2VCB0lw3p7cUQC8/skHZS ETvcMeDp6ZzDDEFTEkl6xhEIHsuXh1hP3vjYu5POF0wSGcSs9rN5NYQbknAyaVdL5UQmeAJJVNMzs NGUHuyHV9yzQxDaooE1LqEPt/GU4bgLvwEvtKsX436EI6b4sbHvvtbnzNdmJNCmVtopWV3z4Pc5vz ZrJI0yHbHnAboO5e8I/LURUGnl9SkagHEmMBkgzG0e6yWyYVQtQUwbNRjryjvJV2wdJS2WWJOt4kq t57vl15moqfaILsqbCjg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qEqOt-0011M1-1b; Thu, 29 Jun 2023 12:05:27 +0000 Received: from szxga01-in.huawei.com ([45.249.212.187]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qEqOp-0011KD-1t; Thu, 29 Jun 2023 12:05:25 +0000 Received: from dggpemm500005.china.huawei.com (unknown [172.30.72.56]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4QsHB76DW2zqVmZ; Thu, 29 Jun 2023 20:02:07 +0800 (CST) Received: from localhost.localdomain (10.69.192.56) by dggpemm500005.china.huawei.com (7.185.36.74) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Thu, 29 Jun 2023 20:04:53 +0800 From: Yunsheng Lin To: , , CC: , , Yunsheng Lin , Lorenzo Bianconi , Alexander Duyck , Liang Chen , Alexander Lobakin , Yisen Zhuang , Salil Mehta , Eric Dumazet , Sunil Goutham , Geetha sowjanya , Subbaraya Sundeep , hariprasad , Saeed Mahameed , Leon Romanovsky , Felix Fietkau , Ryder Lee , Shayne Chen , Sean Wang , Kalle Valo , Matthias Brugger , AngeloGioacchino Del Regno , Jesper Dangaard Brouer , Ilias Apalodimas , , , , Subject: [PATCH v5 RFC 4/6] page_pool: remove PP_FLAG_PAGE_FRAG flag Date: Thu, 29 Jun 2023 20:02:24 +0800 Message-ID: <20230629120226.14854-5-linyunsheng@huawei.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20230629120226.14854-1-linyunsheng@huawei.com> References: <20230629120226.14854-1-linyunsheng@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.56] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To dggpemm500005.china.huawei.com (7.185.36.74) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230629_050524_025447_DEACD7F6 X-CRM114-Status: GOOD ( 16.15 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org PP_FLAG_PAGE_FRAG is not really needed after pp_frag_count handling is unified and page_pool_alloc_frag() is supported in 32-bit arch with 64-bit DMA, so remove it. Signed-off-by: Yunsheng Lin CC: Lorenzo Bianconi CC: Alexander Duyck CC: Liang Chen CC: Alexander Lobakin --- drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 3 +-- drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c | 2 +- drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 2 +- drivers/net/wireless/mediatek/mt76/mac80211.c | 2 +- include/net/page_pool.h | 7 ++----- net/core/skbuff.c | 2 +- 6 files changed, 7 insertions(+), 11 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index b676496ec6d7..4e613d5bf1fd 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -4925,8 +4925,7 @@ static void hns3_put_ring_config(struct hns3_nic_priv *priv) static void hns3_alloc_page_pool(struct hns3_enet_ring *ring) { struct page_pool_params pp_params = { - .flags = PP_FLAG_DMA_MAP | PP_FLAG_PAGE_FRAG | - PP_FLAG_DMA_SYNC_DEV, + .flags = PP_FLAG_DMA_MAP | PP_FLAG_DMA_SYNC_DEV, .order = hns3_page_order(ring), .pool_size = ring->desc_num * hns3_buf_size(ring) / (PAGE_SIZE << hns3_page_order(ring)), diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c index a79cb680bb23..404caec467af 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c @@ -1426,7 +1426,7 @@ int otx2_pool_init(struct otx2_nic *pfvf, u16 pool_id, return 0; } - pp_params.flags = PP_FLAG_PAGE_FRAG | PP_FLAG_DMA_MAP; + pp_params.flags = PP_FLAG_DMA_MAP; pp_params.pool_size = numptrs; pp_params.nid = NUMA_NO_NODE; pp_params.dev = pfvf->dev; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index 42ccb77a1b6c..cdd00848c0cb 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -843,7 +843,7 @@ static int mlx5e_alloc_rq(struct mlx5e_params *params, } pp_params.order = 0; - pp_params.flags = PP_FLAG_DMA_MAP | PP_FLAG_DMA_SYNC_DEV | PP_FLAG_PAGE_FRAG; + pp_params.flags = PP_FLAG_DMA_MAP | PP_FLAG_DMA_SYNC_DEV; pp_params.pool_size = pool_size; pp_params.nid = node; pp_params.dev = rq->pdev; diff --git a/drivers/net/wireless/mediatek/mt76/mac80211.c b/drivers/net/wireless/mediatek/mt76/mac80211.c index 467afef98ba2..ee72869e5572 100644 --- a/drivers/net/wireless/mediatek/mt76/mac80211.c +++ b/drivers/net/wireless/mediatek/mt76/mac80211.c @@ -566,7 +566,7 @@ int mt76_create_page_pool(struct mt76_dev *dev, struct mt76_queue *q) { struct page_pool_params pp_params = { .order = 0, - .flags = PP_FLAG_PAGE_FRAG, + .flags = 0, .nid = NUMA_NO_NODE, .dev = dev->dma_dev, }; diff --git a/include/net/page_pool.h b/include/net/page_pool.h index 53486ef9074d..e9fb95d62ed5 100644 --- a/include/net/page_pool.h +++ b/include/net/page_pool.h @@ -45,10 +45,8 @@ * Please note DMA-sync-for-CPU is still * device driver responsibility */ -#define PP_FLAG_PAGE_FRAG BIT(2) /* for page frag feature */ #define PP_FLAG_ALL (PP_FLAG_DMA_MAP |\ - PP_FLAG_DMA_SYNC_DEV |\ - PP_FLAG_PAGE_FRAG) + PP_FLAG_DMA_SYNC_DEV) #define PAGE_POOL_DMA_USE_PP_FRAG_COUNT \ (sizeof(dma_addr_t) > sizeof(unsigned long)) @@ -234,8 +232,7 @@ static inline struct page *page_pool_alloc_frag(struct page_pool *pool, size = ALIGN(size, dma_get_cache_alignment()); - if (WARN_ON(!(pool->p.flags & PP_FLAG_PAGE_FRAG) || - size > max_size)) + if (WARN_ON(size > max_size)) return NULL; /* Don't allow page splitting and allocate one big frag diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 7c4338221b17..ca2316cc1e7e 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -5652,7 +5652,7 @@ bool skb_try_coalesce(struct sk_buff *to, struct sk_buff *from, /* In general, avoid mixing page_pool and non-page_pool allocated * pages within the same SKB. Additionally avoid dealing with clones * with page_pool pages, in case the SKB is using page_pool fragment - * references (PP_FLAG_PAGE_FRAG). Since we only take full page + * references (page_pool_alloc_frag()). Since we only take full page * references for cloned SKBs at the moment that would result in * inconsistent reference counts. * In theory we could take full references if @from is cloned and