From patchwork Fri Jun 9 13:17:39 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yunsheng Lin X-Patchwork-Id: 691116 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DEC7FC83003 for ; Fri, 9 Jun 2023 13:20:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241349AbjFINUA (ORCPT ); Fri, 9 Jun 2023 09:20:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43360 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240843AbjFINT7 (ORCPT ); Fri, 9 Jun 2023 09:19:59 -0400 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F3499E43; Fri, 9 Jun 2023 06:19:57 -0700 (PDT) Received: from dggpemm500005.china.huawei.com (unknown [172.30.72.53]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4Qd1rg6k2WzTl5q; Fri, 9 Jun 2023 21:19:31 +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 15.1.2507.23; Fri, 9 Jun 2023 21:19:55 +0800 From: Yunsheng Lin To: , , CC: , , Yunsheng Lin , Lorenzo Bianconi , Alexander Duyck , 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 net-next v3 4/4] page_pool: remove PP_FLAG_PAGE_FRAG flag Date: Fri, 9 Jun 2023 21:17:39 +0800 Message-ID: <20230609131740.7496-5-linyunsheng@huawei.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20230609131740.7496-1-linyunsheng@huawei.com> References: <20230609131740.7496-1-linyunsheng@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.56] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To dggpemm500005.china.huawei.com (7.185.36.74) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.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 --- 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 cd4ac378cc63..c5f67e2ab695 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -842,7 +842,7 @@ 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 c135cd157cea..f4fc339ff020 100644 --- a/include/net/page_pool.h +++ b/include/net/page_pool.h @@ -46,10 +46,8 @@ * 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)) @@ -235,8 +233,7 @@ 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