From patchwork Tue Feb 23 11:50:41 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yongji Xie X-Patchwork-Id: 12100233 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=-13.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY, URIBL_BLOCKED,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 EBCBEC433E0 for ; Tue, 23 Feb 2021 11:55:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C2B196023C for ; Tue, 23 Feb 2021 11:55:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232594AbhBWLzl (ORCPT ); Tue, 23 Feb 2021 06:55:41 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51986 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232493AbhBWLxh (ORCPT ); Tue, 23 Feb 2021 06:53:37 -0500 Received: from mail-pl1-x633.google.com (mail-pl1-x633.google.com [IPv6:2607:f8b0:4864:20::633]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BEC53C0617AB for ; Tue, 23 Feb 2021 03:51:59 -0800 (PST) Received: by mail-pl1-x633.google.com with SMTP id f8so9671038plg.5 for ; Tue, 23 Feb 2021 03:51:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=giO5D64d7Kk8o8yeL+fv9W81NZBJ5G7R64+VKGm+1hc=; b=nfgKVWfjpimepezffp7YeVMqjPpQuQiv7NPgbRbM0xTw+5x13dYSJhK4EB+m9p7LkT 1wVgY2Xvp+TIWCD7r2b+pnktIDSaSphelJWNHJyybvleOehuKMErJWW1o2lYW0Q6v8SE f4LUvA+Hl3TiCr6Qf8Jvnhx4TcppHcH3NURuPZmfLlkqX4/wLmps/jZoy5hK3j/CKvfJ 8Tf+7dtjfis+bnsypb5QhmYmOUacW6SMnM3vN9EO+/OOsUKKFXG/c7/zwyFQbLwyJC5G Y5H1QfsKjTo5mq519pnBemW6LZv1ekTNBnMrrdps0XCNnTGL96exHdFyItOgf621jN67 5g6Q== 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=giO5D64d7Kk8o8yeL+fv9W81NZBJ5G7R64+VKGm+1hc=; b=DKJ6yuG3+FFSpuen+qMKMnFNX9KKh5gwcWNqqlwnCp4x54CnIQKjBc6sM501/yOAZ8 PUPr97igoRvo3YK96vSzTupMdXAA8a+1pkz1+V59M0UYfeUWweiS2IoqXoEHaYTPmuvS U7WtYzaORoI7/UV6ySFe/98NdSbY/1TxivN0Xkobexaf3XmS3JN4O6hsjN5j6WIvVNP1 P1QPiH+LTz3+219IBaOcYegxhXyKbDrSuuYPO+jT9LdXXeY/NX8qmpHWpGer7K+YLBoV iSkzbfc1Pf/0BjygEmAaiyfi8Fie1ZupMQtoq2V+rQSgnGF/SFt/5pbDOtsFYqT+3qKV oZ4Q== X-Gm-Message-State: AOAM531BlBg0BBQi4hA1mUhpNMZnAkQ+DRCI0h/a3iKFA+H4zxChOJsx JEQaJ7NoPKafzre5nq0OKZTZ X-Google-Smtp-Source: ABdhPJyi7LkIVDRMXFCcBzP5s5ZBZ1gaIkDSkHERNZYMl41UlyV4GQjbz8zPtKSlM3a0M+Z0vCoXCg== X-Received: by 2002:a17:902:d694:b029:e3:906a:61f8 with SMTP id v20-20020a170902d694b02900e3906a61f8mr27542582ply.36.1614081119392; Tue, 23 Feb 2021 03:51:59 -0800 (PST) Received: from localhost ([139.177.225.253]) by smtp.gmail.com with ESMTPSA id y72sm10247421pfg.126.2021.02.23.03.51.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 Feb 2021 03:51:59 -0800 (PST) From: Xie Yongji To: mst@redhat.com, jasowang@redhat.com, stefanha@redhat.com, sgarzare@redhat.com, parav@nvidia.com, bob.liu@oracle.com, hch@infradead.org, rdunlap@infradead.org, willy@infradead.org, viro@zeniv.linux.org.uk, axboe@kernel.dk, bcrl@kvack.org, corbet@lwn.net Cc: virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, kvm@vger.kernel.org, linux-aio@kvack.org, linux-fsdevel@vger.kernel.org Subject: [RFC v4 04/11] vdpa: Add an opaque pointer for vdpa_config_ops.dma_map() Date: Tue, 23 Feb 2021 19:50:41 +0800 Message-Id: <20210223115048.435-5-xieyongji@bytedance.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210223115048.435-1-xieyongji@bytedance.com> References: <20210223115048.435-1-xieyongji@bytedance.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-State: RFC Add an opaque pointer for DMA mapping. Suggested-by: Jason Wang Signed-off-by: Xie Yongji Acked-by: Jason Wang --- drivers/vdpa/vdpa_sim/vdpa_sim.c | 6 +++--- drivers/vhost/vdpa.c | 2 +- include/linux/vdpa.h | 2 +- 3 files changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c index d5942842432d..5cfc262ce055 100644 --- a/drivers/vdpa/vdpa_sim/vdpa_sim.c +++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c @@ -512,14 +512,14 @@ static int vdpasim_set_map(struct vdpa_device *vdpa, } static int vdpasim_dma_map(struct vdpa_device *vdpa, u64 iova, u64 size, - u64 pa, u32 perm) + u64 pa, u32 perm, void *opaque) { struct vdpasim *vdpasim = vdpa_to_sim(vdpa); int ret; spin_lock(&vdpasim->iommu_lock); - ret = vhost_iotlb_add_range(vdpasim->iommu, iova, iova + size - 1, pa, - perm); + ret = vhost_iotlb_add_range_ctx(vdpasim->iommu, iova, iova + size - 1, + pa, perm, opaque); spin_unlock(&vdpasim->iommu_lock); return ret; diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c index 5500e3bf05c1..70857fe3263c 100644 --- a/drivers/vhost/vdpa.c +++ b/drivers/vhost/vdpa.c @@ -544,7 +544,7 @@ static int vhost_vdpa_map(struct vhost_vdpa *v, return r; if (ops->dma_map) { - r = ops->dma_map(vdpa, iova, size, pa, perm); + r = ops->dma_map(vdpa, iova, size, pa, perm, NULL); } else if (ops->set_map) { if (!v->in_batch) r = ops->set_map(vdpa, dev->iotlb); diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h index 4ab5494503a8..93dca2c328ae 100644 --- a/include/linux/vdpa.h +++ b/include/linux/vdpa.h @@ -241,7 +241,7 @@ struct vdpa_config_ops { /* DMA ops */ int (*set_map)(struct vdpa_device *vdev, struct vhost_iotlb *iotlb); int (*dma_map)(struct vdpa_device *vdev, u64 iova, u64 size, - u64 pa, u32 perm); + u64 pa, u32 perm, void *opaque); int (*dma_unmap)(struct vdpa_device *vdev, u64 iova, u64 size); /* Free device resources */