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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E4A9DCCA485 for ; Fri, 24 Jun 2022 02:57:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231449AbiFXC5R (ORCPT ); Thu, 23 Jun 2022 22:57:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44102 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231405AbiFXC5B (ORCPT ); Thu, 23 Jun 2022 22:57:01 -0400 Received: from out30-42.freemail.mail.aliyun.com (out30-42.freemail.mail.aliyun.com [115.124.30.42]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B3C386270C; Thu, 23 Jun 2022 19:56:57 -0700 (PDT) X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R181e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=ay29a033018046051;MF=xuanzhuo@linux.alibaba.com;NM=1;PH=DS;RN=37;SR=0;TI=SMTPD_---0VHEuVxH_1656039410; Received: from localhost(mailfrom:xuanzhuo@linux.alibaba.com fp:SMTPD_---0VHEuVxH_1656039410) by smtp.aliyun-inc.com; Fri, 24 Jun 2022 10:56:52 +0800 From: Xuan Zhuo To: virtualization@lists.linux-foundation.org Cc: Richard Weinberger , Anton Ivanov , Johannes Berg , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Hans de Goede , Mark Gross , Vadim Pasternak , Bjorn Andersson , Mathieu Poirier , Cornelia Huck , Halil Pasic , Eric Farman , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Xuan Zhuo , Vincent Whitchurch , linux-um@lists.infradead.org, netdev@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-remoteproc@vger.kernel.org, linux-s390@vger.kernel.org, kvm@vger.kernel.org, bpf@vger.kernel.org, kangjie.xu@linux.alibaba.com Subject: [PATCH v10 13/41] virtio_ring: split: extract the logic of vring init Date: Fri, 24 Jun 2022 10:55:53 +0800 Message-Id: <20220624025621.128843-14-xuanzhuo@linux.alibaba.com> X-Mailer: git-send-email 2.31.0 In-Reply-To: <20220624025621.128843-1-xuanzhuo@linux.alibaba.com> References: <20220624025621.128843-1-xuanzhuo@linux.alibaba.com> MIME-Version: 1.0 X-Git-Hash: fef800c86cd2 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-remoteproc@vger.kernel.org Separate the logic of initializing vring, and subsequent patches will call it separately. This function completes the variable initialization of split vring. It together with the logic of atatch constitutes the initialization of vring. Signed-off-by: Xuan Zhuo --- drivers/virtio/virtio_ring.c | 30 +++++++++++++++++++----------- 1 file changed, 19 insertions(+), 11 deletions(-) diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 7ee8dd4328ca..23aab28431b9 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -935,6 +935,24 @@ static void *virtqueue_detach_unused_buf_split(struct virtqueue *_vq) return NULL; } +static void virtqueue_vring_init_split(struct vring_virtqueue *vq) +{ + struct virtio_device *vdev; + + vdev = vq->vq.vdev; + + vq->split.avail_flags_shadow = 0; + vq->split.avail_idx_shadow = 0; + + /* No callback? Tell other side not to bother us. */ + if (!vq->vq.callback) { + vq->split.avail_flags_shadow |= VRING_AVAIL_F_NO_INTERRUPT; + if (!vq->event) + vq->split.vring.avail->flags = cpu_to_virtio16(vdev, + vq->split.avail_flags_shadow); + } +} + static void virtqueue_vring_attach_split(struct vring_virtqueue *vq, struct vring_virtqueue_split *vring) { @@ -2264,17 +2282,6 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index, vq->indirect = virtio_has_feature(vdev, VIRTIO_RING_F_INDIRECT_DESC) && !context; - vq->split.avail_flags_shadow = 0; - vq->split.avail_idx_shadow = 0; - - /* No callback? Tell other side not to bother us. */ - if (!callback) { - vq->split.avail_flags_shadow |= VRING_AVAIL_F_NO_INTERRUPT; - if (!vq->event) - vq->split.vring.avail->flags = cpu_to_virtio16(vdev, - vq->split.avail_flags_shadow); - } - vring.vring = _vring; err = vring_alloc_state_extra_split(&vring); @@ -2285,6 +2292,7 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index, virtqueue_init(vq, vring.vring.num); virtqueue_vring_attach_split(vq, &vring); + virtqueue_vring_init_split(vq); spin_lock(&vdev->vqs_list_lock); list_add_tail(&vq->vq.list, &vdev->vqs); -- 2.31.0 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 Received: from smtp2.osuosl.org (smtp2.osuosl.org [140.211.166.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 26D82CCA487 for ; Fri, 24 Jun 2022 02:57:03 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id B4E6740639; Fri, 24 Jun 2022 02:57:02 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp2.osuosl.org B4E6740639 X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ekWaEPtBnHZ2; Fri, 24 Jun 2022 02:57:02 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by smtp2.osuosl.org (Postfix) with ESMTPS id 5078D40C4B; Fri, 24 Jun 2022 02:57:01 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp2.osuosl.org 5078D40C4B Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 2925DC0032; Fri, 24 Jun 2022 02:57:01 +0000 (UTC) Received: from smtp1.osuosl.org (smtp1.osuosl.org [IPv6:2605:bc80:3010::138]) by lists.linuxfoundation.org (Postfix) with ESMTP id 9CBB1C002D for ; Fri, 24 Jun 2022 02:56:59 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id 6965184832 for ; Fri, 24 Jun 2022 02:56:59 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp1.osuosl.org 6965184832 X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id UD_FGD1CuQbU for ; Fri, 24 Jun 2022 02:56:58 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 DKIM-Filter: OpenDKIM Filter v2.11.0 smtp1.osuosl.org 578848482F Received: from out30-57.freemail.mail.aliyun.com (out30-57.freemail.mail.aliyun.com [115.124.30.57]) by smtp1.osuosl.org (Postfix) with ESMTPS id 578848482F for ; Fri, 24 Jun 2022 02:56:57 +0000 (UTC) X-Alimail-AntiSpam: AC=PASS; BC=-1|-1; BR=01201311R181e4; CH=green; DM=||false|; DS=||; FP=0|-1|-1|-1|0|-1|-1|-1; HT=ay29a033018046051; MF=xuanzhuo@linux.alibaba.com; NM=1; PH=DS; RN=37; SR=0; TI=SMTPD_---0VHEuVxH_1656039410; Received: from localhost(mailfrom:xuanzhuo@linux.alibaba.com fp:SMTPD_---0VHEuVxH_1656039410) by smtp.aliyun-inc.com; Fri, 24 Jun 2022 10:56:52 +0800 From: Xuan Zhuo To: virtualization@lists.linux-foundation.org Subject: [PATCH v10 13/41] virtio_ring: split: extract the logic of vring init Date: Fri, 24 Jun 2022 10:55:53 +0800 Message-Id: <20220624025621.128843-14-xuanzhuo@linux.alibaba.com> X-Mailer: git-send-email 2.31.0 In-Reply-To: <20220624025621.128843-1-xuanzhuo@linux.alibaba.com> References: <20220624025621.128843-1-xuanzhuo@linux.alibaba.com> MIME-Version: 1.0 X-Git-Hash: fef800c86cd2 Cc: Vadim Pasternak , "Michael S. Tsirkin" , linux-remoteproc@vger.kernel.org, Alexei Starovoitov , Bjorn Andersson , Eric Dumazet , Alexander Gordeev , kangjie.xu@linux.alibaba.com, Anton Ivanov , kvm@vger.kernel.org, Daniel Borkmann , Richard Weinberger , Vincent Whitchurch , John Fastabend , Halil Pasic , Jakub Kicinski , Eric Farman , Jesper Dangaard Brouer , Vasily Gorbik , linux-s390@vger.kernel.org, Heiko Carstens , linux-um@lists.infradead.org, Mark Gross , Hans de Goede , platform-driver-x86@vger.kernel.org, bpf@vger.kernel.org, Paolo Abeni , Mathieu Poirier , netdev@vger.kernel.org, Cornelia Huck , Sven Schnelle , Johannes Berg , "David S. Miller" X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" Separate the logic of initializing vring, and subsequent patches will call it separately. This function completes the variable initialization of split vring. It together with the logic of atatch constitutes the initialization of vring. Signed-off-by: Xuan Zhuo --- drivers/virtio/virtio_ring.c | 30 +++++++++++++++++++----------- 1 file changed, 19 insertions(+), 11 deletions(-) diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 7ee8dd4328ca..23aab28431b9 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -935,6 +935,24 @@ static void *virtqueue_detach_unused_buf_split(struct virtqueue *_vq) return NULL; } +static void virtqueue_vring_init_split(struct vring_virtqueue *vq) +{ + struct virtio_device *vdev; + + vdev = vq->vq.vdev; + + vq->split.avail_flags_shadow = 0; + vq->split.avail_idx_shadow = 0; + + /* No callback? Tell other side not to bother us. */ + if (!vq->vq.callback) { + vq->split.avail_flags_shadow |= VRING_AVAIL_F_NO_INTERRUPT; + if (!vq->event) + vq->split.vring.avail->flags = cpu_to_virtio16(vdev, + vq->split.avail_flags_shadow); + } +} + static void virtqueue_vring_attach_split(struct vring_virtqueue *vq, struct vring_virtqueue_split *vring) { @@ -2264,17 +2282,6 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index, vq->indirect = virtio_has_feature(vdev, VIRTIO_RING_F_INDIRECT_DESC) && !context; - vq->split.avail_flags_shadow = 0; - vq->split.avail_idx_shadow = 0; - - /* No callback? Tell other side not to bother us. */ - if (!callback) { - vq->split.avail_flags_shadow |= VRING_AVAIL_F_NO_INTERRUPT; - if (!vq->event) - vq->split.vring.avail->flags = cpu_to_virtio16(vdev, - vq->split.avail_flags_shadow); - } - vring.vring = _vring; err = vring_alloc_state_extra_split(&vring); @@ -2285,6 +2292,7 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index, virtqueue_init(vq, vring.vring.num); virtqueue_vring_attach_split(vq, &vring); + virtqueue_vring_init_split(vq); spin_lock(&vdev->vqs_list_lock); list_add_tail(&vq->vq.list, &vdev->vqs); -- 2.31.0 _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from out30-132.freemail.mail.aliyun.com ([115.124.30.132]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1o4ZVA-00HV3X-QW for linux-um@lists.infradead.org; Fri, 24 Jun 2022 02:56:58 +0000 From: Xuan Zhuo Subject: [PATCH v10 13/41] virtio_ring: split: extract the logic of vring init Date: Fri, 24 Jun 2022 10:55:53 +0800 Message-Id: <20220624025621.128843-14-xuanzhuo@linux.alibaba.com> In-Reply-To: <20220624025621.128843-1-xuanzhuo@linux.alibaba.com> References: <20220624025621.128843-1-xuanzhuo@linux.alibaba.com> MIME-Version: 1.0 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-um" Errors-To: linux-um-bounces+geert=linux-m68k.org@lists.infradead.org To: virtualization@lists.linux-foundation.org Cc: Richard Weinberger , Anton Ivanov , Johannes Berg , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Hans de Goede , Mark Gross , Vadim Pasternak , Bjorn Andersson , Mathieu Poirier , Cornelia Huck , Halil Pasic , Eric Farman , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Xuan Zhuo , Vincent Whitchurch , linux-um@lists.infradead.org, netdev@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-remoteproc@vger.kernel.org, linux-s390@vger.kernel.org, kvm@vger.kernel.org, bpf@vger.kernel.org, kangjie.xu@linux.alibaba.com Separate the logic of initializing vring, and subsequent patches will call it separately. This function completes the variable initialization of split vring. It together with the logic of atatch constitutes the initialization of vring. Signed-off-by: Xuan Zhuo --- drivers/virtio/virtio_ring.c | 30 +++++++++++++++++++----------- 1 file changed, 19 insertions(+), 11 deletions(-) diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 7ee8dd4328ca..23aab28431b9 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -935,6 +935,24 @@ static void *virtqueue_detach_unused_buf_split(struct virtqueue *_vq) return NULL; } +static void virtqueue_vring_init_split(struct vring_virtqueue *vq) +{ + struct virtio_device *vdev; + + vdev = vq->vq.vdev; + + vq->split.avail_flags_shadow = 0; + vq->split.avail_idx_shadow = 0; + + /* No callback? Tell other side not to bother us. */ + if (!vq->vq.callback) { + vq->split.avail_flags_shadow |= VRING_AVAIL_F_NO_INTERRUPT; + if (!vq->event) + vq->split.vring.avail->flags = cpu_to_virtio16(vdev, + vq->split.avail_flags_shadow); + } +} + static void virtqueue_vring_attach_split(struct vring_virtqueue *vq, struct vring_virtqueue_split *vring) { @@ -2264,17 +2282,6 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index, vq->indirect = virtio_has_feature(vdev, VIRTIO_RING_F_INDIRECT_DESC) && !context; - vq->split.avail_flags_shadow = 0; - vq->split.avail_idx_shadow = 0; - - /* No callback? Tell other side not to bother us. */ - if (!callback) { - vq->split.avail_flags_shadow |= VRING_AVAIL_F_NO_INTERRUPT; - if (!vq->event) - vq->split.vring.avail->flags = cpu_to_virtio16(vdev, - vq->split.avail_flags_shadow); - } - vring.vring = _vring; err = vring_alloc_state_extra_split(&vring); @@ -2285,6 +2292,7 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index, virtqueue_init(vq, vring.vring.num); virtqueue_vring_attach_split(vq, &vring); + virtqueue_vring_init_split(vq); spin_lock(&vdev->vqs_list_lock); list_add_tail(&vq->vq.list, &vdev->vqs); -- 2.31.0 _______________________________________________ linux-um mailing list linux-um@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-um