From nobody Wed Dec 31 02:35:12 2025 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 E9345C4332F for ; Mon, 13 Nov 2023 13:01:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231415AbjKMNBM (ORCPT ); Mon, 13 Nov 2023 08:01:12 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47636 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231191AbjKMNAs (ORCPT ); Mon, 13 Nov 2023 08:00:48 -0500 Received: from szxga03-in.huawei.com (szxga03-in.huawei.com [45.249.212.189]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C624C172D; Mon, 13 Nov 2023 05:00:44 -0800 (PST) Received: from dggpemm500005.china.huawei.com (unknown [172.30.72.53]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4STTvD12YMzMmpm; Mon, 13 Nov 2023 20:56:08 +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 15.1.2507.31; Mon, 13 Nov 2023 21:00:41 +0800 From: Yunsheng Lin To: , , CC: , , Yunsheng Lin , Yisen Zhuang , Salil Mehta , Eric Dumazet Subject: [PATCH RFC 7/8] net: hns3: temp hack for hns3 to use dmabuf memory provider Date: Mon, 13 Nov 2023 21:00:39 +0800 Message-ID: <20231113130041.58124-8-linyunsheng@huawei.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20231113130041.58124-1-linyunsheng@huawei.com> References: <20231113130041.58124-1-linyunsheng@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.69.192.56] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpemm500005.china.huawei.com (7.185.36.74) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Signed-off-by: Yunsheng Lin --- drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/= ethernet/hisilicon/hns3/hns3_enet.c index 06117502001f..43454aa6a279 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -3371,6 +3371,8 @@ static int hns3_alloc_buffer(struct hns3_enet_ring *r= ing, struct page *p; =20 if (ring->page_pool) { + struct page_pool_iov *ppiov; + p =3D page_pool_dev_alloc_frag(ring->page_pool, &cb->page_offset, hns3_buf_size(ring)); @@ -3378,7 +3380,8 @@ static int hns3_alloc_buffer(struct hns3_enet_ring *r= ing, return -ENOMEM; =20 cb->priv =3D p; - cb->buf =3D page_address(p); + ppiov =3D cb->priv; + cb->buf =3D page_address(ppiov->page); cb->dma =3D page_pool_get_dma_addr(p); cb->type =3D DESC_TYPE_PP_FRAG; cb->reuse_flag =3D 0; @@ -4940,7 +4943,7 @@ 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 =3D { - .flags =3D PP_FLAG_DMA_MAP | PP_FLAG_DMA_SYNC_DEV, + .flags =3D 0,//PP_FLAG_DMA_MAP | PP_FLAG_DMA_SYNC_DEV, .order =3D hns3_page_order(ring), .pool_size =3D ring->desc_num * hns3_buf_size(ring) / (PAGE_SIZE << hns3_page_order(ring)), @@ -4949,6 +4952,8 @@ static void hns3_alloc_page_pool(struct hns3_enet_rin= g *ring) .dma_dir =3D DMA_FROM_DEVICE, .offset =3D 0, .max_len =3D PAGE_SIZE << hns3_page_order(ring), + .memory_provider =3D PP_MP_DMABUF_DEVMEM, + .mp_priv =3D &dmabuf_devmem_ops, }; =20 ring->page_pool =3D page_pool_create(&pp_params); --=20 2.33.0