From patchwork Wed Dec 16 06:48:05 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jason Wang X-Patchwork-Id: 11976747 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=-15.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 E7E94C35273 for ; Wed, 16 Dec 2020 06:51:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C114123371 for ; Wed, 16 Dec 2020 06:51:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726033AbgLPGut (ORCPT ); Wed, 16 Dec 2020 01:50:49 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:39197 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725997AbgLPGut (ORCPT ); Wed, 16 Dec 2020 01:50:49 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1608101363; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=5hpiTWff/q01n7aDyM8nOVVw88HssmeVscsZoNCXoO8=; b=Djr8avYpmafyeazJ7nsEL1UAqzHoy11MDg9XT4M3Nct1jPliw0vVDwT+1pxsxZ0au9MbAY ndvrJXe+DWIaBqe7fXKxspKERf4d+DVfdh8lFmuC40HxBhtYBWAGrB9X2B4FlXun96bJVJ MxzJ+8GoUhifhr1oxVpsarBY/z8lQI4= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-279-e54YYSFSM-6haotVO9Vk0A-1; Wed, 16 Dec 2020 01:49:21 -0500 X-MC-Unique: e54YYSFSM-6haotVO9Vk0A-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 29F39180A09B; Wed, 16 Dec 2020 06:49:20 +0000 (UTC) Received: from jason-ThinkPad-X1-Carbon-6th.redhat.com (ovpn-12-210.pek2.redhat.com [10.72.12.210]) by smtp.corp.redhat.com (Postfix) with ESMTP id 1887210016FF; Wed, 16 Dec 2020 06:49:15 +0000 (UTC) From: Jason Wang To: mst@redhat.com, jasowang@redhat.com Cc: eperezma@redhat.com, kvm@vger.kernel.org, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, lulu@redhat.com, eli@mellanox.com, lingshan.zhu@intel.com, rob.miller@broadcom.com, stefanha@redhat.com, sgarzare@redhat.com Subject: [PATCH 08/21] vdpa: introduce config operations for associating ASID to a virtqueue group Date: Wed, 16 Dec 2020 14:48:05 +0800 Message-Id: <20201216064818.48239-9-jasowang@redhat.com> In-Reply-To: <20201216064818.48239-1-jasowang@redhat.com> References: <20201216064818.48239-1-jasowang@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This patch introduces a new bus operation to allow the vDPA bus driver to associate an ASID to a virtqueue group. Signed-off-by: Jason Wang --- include/linux/vdpa.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h index 0a9a754f8180..2a8671f27b0b 100644 --- a/include/linux/vdpa.h +++ b/include/linux/vdpa.h @@ -174,6 +174,12 @@ struct vdpa_iova_range { * @vdev: vdpa device * Returns the iova range supported by * the device. + * @set_group_asid: Set address space identifier for a + * virtqueue group + * @vdev: vdpa device + * @group: virtqueue group + * @asid: address space id for this group + * Returns integer: success (0) or error (< 0) * @set_map: Set device memory mapping (optional) * Needed for device that using device * specific DMA translation (on-chip IOMMU) @@ -252,6 +258,10 @@ struct vdpa_config_ops { u64 iova, u64 size, u64 pa, u32 perm); int (*dma_unmap)(struct vdpa_device *vdev, unsigned int asid, u64 iova, u64 size); + int (*set_group_asid)(struct vdpa_device *vdev, unsigned int group, + unsigned int asid); + + /* Free device resources */ void (*free)(struct vdpa_device *vdev);