From mboxrd@z Thu Jan 1 00:00:00 1970 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=-17.2 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=unavailable 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 D97E7C0018C for ; Fri, 4 Dec 2020 04:06:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A5A2B222B6 for ; Fri, 4 Dec 2020 04:06:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728174AbgLDEGM (ORCPT ); Thu, 3 Dec 2020 23:06:12 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:57484 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728121AbgLDEGL (ORCPT ); Thu, 3 Dec 2020 23:06:11 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1607054685; 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=J7GCEgOM0YP2MLYJ3+IGPCRjYuPqLGPgVRLx0Cas//4=; b=RTwQpoRsWfwFXvgJvSDn4qJFXSB78sGprZhzZEpBuJ+V1+J/09G8urVaOZ/oPQ7viuD45Q m7eO4Cz6u5udqSttyO2clpPNKPwximO4Si7lXb/bW2wP2BlcHgGMPs6zPx+23NKrP7Pa81 AMTQyHnndllgo49MZuQeVjFuyhKOcto= 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-37-yBclLaZsP0CGGW7InKSaaw-1; Thu, 03 Dec 2020 23:04:41 -0500 X-MC-Unique: yBclLaZsP0CGGW7InKSaaw-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id BDB2B57204; Fri, 4 Dec 2020 04:04:39 +0000 (UTC) Received: from jason-ThinkPad-X1-Carbon-6th.redhat.com (ovpn-12-116.pek2.redhat.com [10.72.12.116]) by smtp.corp.redhat.com (Postfix) with ESMTP id 7A6E61A4D0; Fri, 4 Dec 2020 04:04:34 +0000 (UTC) From: Jason Wang To: mst@redhat.com, jasowang@redhat.com, virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org Cc: shahafs@mellanox.com Subject: [PATCH V2 10/19] virtio-pci-modern: introduce vp_modern_queue_address() Date: Fri, 4 Dec 2020 12:03:44 +0800 Message-Id: <20201204040353.21679-11-jasowang@redhat.com> In-Reply-To: <20201204040353.21679-1-jasowang@redhat.com> References: <20201204040353.21679-1-jasowang@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch introduce a helper to set virtqueue address for modern address. Signed-off-by: Jason Wang --- drivers/virtio/virtio_pci_modern.c | 33 ++++++++++++++++++++++++------ 1 file changed, 27 insertions(+), 6 deletions(-) diff --git a/drivers/virtio/virtio_pci_modern.c b/drivers/virtio/virtio_pci_modern.c index 05cd409c0731..05b21e18f46c 100644 --- a/drivers/virtio/virtio_pci_modern.c +++ b/drivers/virtio/virtio_pci_modern.c @@ -210,6 +210,30 @@ static u16 vp_modern_queue_vector(struct virtio_pci_modern_device *mdev, return vp_ioread16(&cfg->queue_msix_vector); } +/* + * vp_modern_queue_address - set the virtqueue address + * @mdev: the modern virtio-pci device + * @index: the queue index + * @desc_addr: address of the descriptor area + * @driver_addr: address of the driver area + * @device_addr: address of the device area + */ +static void vp_modern_queue_address(struct virtio_pci_modern_device *mdev, + u16 index, u64 desc_addr, u64 driver_addr, + u64 device_addr) +{ + struct virtio_pci_common_cfg __iomem *cfg = mdev->common; + + vp_iowrite16(index, &cfg->queue_select); + + vp_iowrite64_twopart(desc_addr, &cfg->queue_desc_lo, + &cfg->queue_desc_hi); + vp_iowrite64_twopart(driver_addr, &cfg->queue_avail_lo, + &cfg->queue_avail_hi); + vp_iowrite64_twopart(device_addr, &cfg->queue_used_lo, + &cfg->queue_used_hi); +} + /* virtio config->finalize_features() implementation */ static int vp_finalize_features(struct virtio_device *vdev) { @@ -459,12 +483,9 @@ static struct virtqueue *setup_vq(struct virtio_pci_device *vp_dev, /* activate the queue */ vp_iowrite16(virtqueue_get_vring_size(vq), &cfg->queue_size); - vp_iowrite64_twopart(virtqueue_get_desc_addr(vq), - &cfg->queue_desc_lo, &cfg->queue_desc_hi); - vp_iowrite64_twopart(virtqueue_get_avail_addr(vq), - &cfg->queue_avail_lo, &cfg->queue_avail_hi); - vp_iowrite64_twopart(virtqueue_get_used_addr(vq), - &cfg->queue_used_lo, &cfg->queue_used_hi); + vp_modern_queue_address(mdev, index, virtqueue_get_desc_addr(vq), + virtqueue_get_avail_addr(vq), + virtqueue_get_used_addr(vq)); if (mdev->notify_base) { /* offset should not wrap */ -- 2.25.1