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=-16.0 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 E57A2C4332B for ; Mon, 4 Jan 2021 06:57:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C2CEC2151B for ; Mon, 4 Jan 2021 06:57:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728299AbhADG5l (ORCPT ); Mon, 4 Jan 2021 01:57:41 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:21748 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728180AbhADG5j (ORCPT ); Mon, 4 Jan 2021 01:57:39 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1609743372; 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=Vh5cz5at1G+5ld0pHqqsQA1nJo4RyhpJ3/S1fZfR/fY=; b=MxRUE6yVJPPDouqUbgnl4rR7q1Eogsh3BjB//5hbPK55wxhCi61q0SrFWrij5a8UoJsj24 AXQnFT4CYTtYqUfcwkp3r3NjlU0CjKwRCpD7497Bpsp6Q4+//sG0P8XmKetISBQocT76c2 hLsEHRK/e6mfiTVV6kBdCBFj/Us2qSQ= 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-382-aD5CUk07NpOCKarpVvm-pQ-1; Mon, 04 Jan 2021 01:56:11 -0500 X-MC-Unique: aD5CUk07NpOCKarpVvm-pQ-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 E87A9803620; Mon, 4 Jan 2021 06:56:09 +0000 (UTC) Received: from jason-ThinkPad-X1-Carbon-6th.redhat.com (ovpn-13-91.pek2.redhat.com [10.72.13.91]) by smtp.corp.redhat.com (Postfix) with ESMTP id 481251002388; Mon, 4 Jan 2021 06:56:03 +0000 (UTC) From: Jason Wang To: mst@redhat.com, virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org Cc: shahafs@mellanox.com, lulu@redhat.com, sgarzare@redhat.com, rdunlap@infradead.org, Jason Wang Subject: [PATCH V3 15/19] virito-pci-modern: rename map_capability() to vp_modern_map_capability() Date: Mon, 4 Jan 2021 14:54:59 +0800 Message-Id: <20210104065503.199631-16-jasowang@redhat.com> In-Reply-To: <20210104065503.199631-1-jasowang@redhat.com> References: <20210104065503.199631-1-jasowang@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org To ease the split, map_capability() was renamed to vp_modern_map_capability(). While at it, add the comments for the arguments and switch to use virtio_pci_modern_device as the first parameter. Signed-off-by: Jason Wang --- drivers/virtio/virtio_pci_modern.c | 46 +++++++++++++++++++----------- 1 file changed, 30 insertions(+), 16 deletions(-) diff --git a/drivers/virtio/virtio_pci_modern.c b/drivers/virtio/virtio_pci_modern.c index 217573f2588d..a5e3a5e40323 100644 --- a/drivers/virtio/virtio_pci_modern.c +++ b/drivers/virtio/virtio_pci_modern.c @@ -63,12 +63,25 @@ static void vp_iowrite64_twopart(u64 val, vp_iowrite32(val >> 32, hi); } -static void __iomem *map_capability(struct pci_dev *dev, int off, - size_t minlen, - u32 align, - u32 start, u32 size, - size_t *len) +/* + * vp_modern_map_capability - map a part of virtio pci capability + * @mdev: the modern virtio-pci device + * @off: offset of the capability + * @minlen: minimal length of the capability + * @align: align requirement + * @start: start from the capability + * @size: map size + * @len: the length that is actually mapped + * + * Returns the io address of for the part of the capability + */ +void __iomem *vp_modern_map_capability(struct virtio_pci_modern_device *mdev, int off, + size_t minlen, + u32 align, + u32 start, u32 size, + size_t *len) { + struct pci_dev *dev = mdev->pci_dev; u8 bar; u32 offset, length; void __iomem *p; @@ -582,7 +595,7 @@ static struct virtqueue *setup_vq(struct virtio_pci_device *vp_dev, vq->priv = (void __force *)mdev->notify_base + off * mdev->notify_offset_multiplier; } else { - vq->priv = (void __force *)map_capability(mdev->pci_dev, + vq->priv = (void __force *)vp_modern_map_capability(mdev, mdev->notify_map_cap, 2, 2, off * mdev->notify_offset_multiplier, 2, NULL); @@ -956,15 +969,15 @@ static int vp_modern_probe(struct virtio_pci_modern_device *mdev) return err; err = -EINVAL; - mdev->common = map_capability(pci_dev, common, + mdev->common = vp_modern_map_capability(mdev, common, sizeof(struct virtio_pci_common_cfg), 4, 0, sizeof(struct virtio_pci_common_cfg), NULL); if (!mdev->common) goto err_map_common; - mdev->isr = map_capability(pci_dev, isr, sizeof(u8), 1, - 0, 1, - NULL); + mdev->isr = vp_modern_map_capability(mdev, isr, sizeof(u8), 1, + 0, 1, + NULL); if (!mdev->isr) goto err_map_isr; @@ -989,9 +1002,10 @@ static int vp_modern_probe(struct virtio_pci_modern_device *mdev) * Otherwise, map each VQ individually later. */ if ((u64)notify_length + (notify_offset % PAGE_SIZE) <= PAGE_SIZE) { - mdev->notify_base = map_capability(pci_dev, notify, 2, 2, - 0, notify_length, - &mdev->notify_len); + mdev->notify_base = vp_modern_map_capability(mdev, notify, + 2, 2, + 0, notify_length, + &mdev->notify_len); if (!mdev->notify_base) goto err_map_notify; } else { @@ -1002,9 +1016,9 @@ static int vp_modern_probe(struct virtio_pci_modern_device *mdev) * is more than enough for all existing devices. */ if (device) { - mdev->device = map_capability(pci_dev, device, 0, 4, - 0, PAGE_SIZE, - &mdev->device_len); + mdev->device = vp_modern_map_capability(mdev, device, 0, 4, + 0, PAGE_SIZE, + &mdev->device_len); if (!mdev->device) goto err_map_device; } -- 2.25.1