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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED, USER_AGENT_GIT 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 208EBC49360 for ; Thu, 10 Jun 2021 08:22:26 +0000 (UTC) Received: from smtp3.osuosl.org (smtp3.osuosl.org [140.211.166.136]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E0A786142F for ; Thu, 10 Jun 2021 08:22:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E0A786142F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=virtualization-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by smtp3.osuosl.org (Postfix) with ESMTP id 8F6BA6086D; Thu, 10 Jun 2021 08:22:25 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp3.osuosl.org ([127.0.0.1]) by localhost (smtp3.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id OUCUmT1UwxW8; Thu, 10 Jun 2021 08:22:24 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [IPv6:2605:bc80:3010:104::8cd3:938]) by smtp3.osuosl.org (Postfix) with ESMTPS id B76B3606A7; Thu, 10 Jun 2021 08:22:23 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 893B2C0029; Thu, 10 Jun 2021 08:22:22 +0000 (UTC) Received: from smtp4.osuosl.org (smtp4.osuosl.org [IPv6:2605:bc80:3010::137]) by lists.linuxfoundation.org (Postfix) with ESMTP id 55940C000B for ; Thu, 10 Jun 2021 08:22:19 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id 3770A40539 for ; Thu, 10 Jun 2021 08:22:19 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp4.osuosl.org ([127.0.0.1]) by localhost (smtp4.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id xxJvb7yA0DZG for ; Thu, 10 Jun 2021 08:22:18 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 Received: from out4436.biz.mail.alibaba.com (out4436.biz.mail.alibaba.com [47.88.44.36]) by smtp4.osuosl.org (Postfix) with ESMTPS id 20225405BD for ; Thu, 10 Jun 2021 08:22:17 +0000 (UTC) X-Alimail-AntiSpam: AC=PASS; BC=-1|-1; BR=01201311R101e4; CH=green; DM=||false|; DS=||; FP=0|-1|-1|-1|0|-1|-1|-1; HT=e01e04394; MF=xuanzhuo@linux.alibaba.com; NM=1; PH=DS; RN=21; SR=0; TI=SMTPD_---0Ubx5.Hk_1623313331; Received: from localhost(mailfrom:xuanzhuo@linux.alibaba.com fp:SMTPD_---0Ubx5.Hk_1623313331) by smtp.aliyun-inc.com(127.0.0.1); Thu, 10 Jun 2021 16:22:11 +0800 From: Xuan Zhuo To: netdev@vger.kernel.org Subject: [PATCH net-next v5 05/15] virtio: support virtqueue_detach_unused_buf_ctx Date: Thu, 10 Jun 2021 16:21:59 +0800 Message-Id: <20210610082209.91487-6-xuanzhuo@linux.alibaba.com> X-Mailer: git-send-email 2.31.0 In-Reply-To: <20210610082209.91487-1-xuanzhuo@linux.alibaba.com> References: <20210610082209.91487-1-xuanzhuo@linux.alibaba.com> MIME-Version: 1.0 Cc: Song Liu , Martin KaFai Lau , Jesper Dangaard Brouer , Daniel Borkmann , "Michael S. Tsirkin" , Yonghong Song , John Fastabend , Alexei Starovoitov , Andrii Nakryiko , =?UTF-8?q?Bj=C3=B6rn=20T=C3=B6pel?= , "dust . li" , Jonathan Lemon , KP Singh , Jakub Kicinski , bpf@vger.kernel.org, virtualization@lists.linux-foundation.org, "David S. Miller" , Magnus Karlsson 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" Supports returning ctx while recycling unused buf, which helps to release buf in different ways for different bufs. Signed-off-by: Xuan Zhuo --- drivers/virtio/virtio_ring.c | 22 +++++++++++++++------- include/linux/virtio.h | 2 ++ 2 files changed, 17 insertions(+), 7 deletions(-) diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 71e16b53e9c1..a3d7ec1c9ea7 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -815,7 +815,8 @@ static bool virtqueue_enable_cb_delayed_split(struct virtqueue *_vq) return true; } -static void *virtqueue_detach_unused_buf_split(struct virtqueue *_vq) +static void *virtqueue_detach_unused_buf_ctx_split(struct virtqueue *_vq, + void **ctx) { struct vring_virtqueue *vq = to_vvq(_vq); unsigned int i; @@ -828,7 +829,7 @@ static void *virtqueue_detach_unused_buf_split(struct virtqueue *_vq) continue; /* detach_buf_split clears data, so grab it now. */ buf = vq->split.desc_state[i].data; - detach_buf_split(vq, i, NULL); + detach_buf_split(vq, i, ctx); vq->split.avail_idx_shadow--; vq->split.vring.avail->idx = cpu_to_virtio16(_vq->vdev, vq->split.avail_idx_shadow); @@ -1526,7 +1527,8 @@ static bool virtqueue_enable_cb_delayed_packed(struct virtqueue *_vq) return true; } -static void *virtqueue_detach_unused_buf_packed(struct virtqueue *_vq) +static void *virtqueue_detach_unused_buf_ctx_packed(struct virtqueue *_vq, + void **ctx) { struct vring_virtqueue *vq = to_vvq(_vq); unsigned int i; @@ -1539,7 +1541,7 @@ static void *virtqueue_detach_unused_buf_packed(struct virtqueue *_vq) continue; /* detach_buf clears data, so grab it now. */ buf = vq->packed.desc_state[i].data; - detach_buf_packed(vq, i, NULL); + detach_buf_packed(vq, i, ctx); END_USE(vq); return buf; } @@ -2018,12 +2020,18 @@ EXPORT_SYMBOL_GPL(virtqueue_enable_cb_delayed); * This is not valid on an active queue; it is useful only for device * shutdown. */ -void *virtqueue_detach_unused_buf(struct virtqueue *_vq) +void *virtqueue_detach_unused_buf_ctx(struct virtqueue *_vq, void **ctx) { struct vring_virtqueue *vq = to_vvq(_vq); - return vq->packed_ring ? virtqueue_detach_unused_buf_packed(_vq) : - virtqueue_detach_unused_buf_split(_vq); + return vq->packed_ring ? + virtqueue_detach_unused_buf_ctx_packed(_vq, ctx) : + virtqueue_detach_unused_buf_ctx_split(_vq, ctx); +} + +void *virtqueue_detach_unused_buf(struct virtqueue *_vq) +{ + return virtqueue_detach_unused_buf_ctx(_vq, NULL); } EXPORT_SYMBOL_GPL(virtqueue_detach_unused_buf); diff --git a/include/linux/virtio.h b/include/linux/virtio.h index b1894e0323fa..8aada4d29e04 100644 --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -78,6 +78,8 @@ bool virtqueue_poll(struct virtqueue *vq, unsigned); bool virtqueue_enable_cb_delayed(struct virtqueue *vq); +void *virtqueue_detach_unused_buf_ctx(struct virtqueue *vq, void **ctx); + void *virtqueue_detach_unused_buf(struct virtqueue *vq); unsigned int virtqueue_get_vring_size(struct virtqueue *vq); -- 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: 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,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 4C626C47094 for ; Thu, 10 Jun 2021 08:22:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3625C61406 for ; Thu, 10 Jun 2021 08:22:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230215AbhFJIYN (ORCPT ); Thu, 10 Jun 2021 04:24:13 -0400 Received: from out30-43.freemail.mail.aliyun.com ([115.124.30.43]:35570 "EHLO out30-43.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230445AbhFJIYK (ORCPT ); Thu, 10 Jun 2021 04:24:10 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R101e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04394;MF=xuanzhuo@linux.alibaba.com;NM=1;PH=DS;RN=21;SR=0;TI=SMTPD_---0Ubx5.Hk_1623313331; Received: from localhost(mailfrom:xuanzhuo@linux.alibaba.com fp:SMTPD_---0Ubx5.Hk_1623313331) by smtp.aliyun-inc.com(127.0.0.1); Thu, 10 Jun 2021 16:22:11 +0800 From: Xuan Zhuo To: netdev@vger.kernel.org Cc: "David S. Miller" , Jakub Kicinski , "Michael S. Tsirkin" , Jason Wang , =?UTF-8?q?Bj=C3=B6rn=20T=C3=B6pel?= , Magnus Karlsson , Jonathan Lemon , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Andrii Nakryiko , Martin KaFai Lau , Song Liu , Yonghong Song , KP Singh , Xuan Zhuo , virtualization@lists.linux-foundation.org, bpf@vger.kernel.org, "dust . li" Subject: [PATCH net-next v5 05/15] virtio: support virtqueue_detach_unused_buf_ctx Date: Thu, 10 Jun 2021 16:21:59 +0800 Message-Id: <20210610082209.91487-6-xuanzhuo@linux.alibaba.com> X-Mailer: git-send-email 2.31.0 In-Reply-To: <20210610082209.91487-1-xuanzhuo@linux.alibaba.com> References: <20210610082209.91487-1-xuanzhuo@linux.alibaba.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org Supports returning ctx while recycling unused buf, which helps to release buf in different ways for different bufs. Signed-off-by: Xuan Zhuo --- drivers/virtio/virtio_ring.c | 22 +++++++++++++++------- include/linux/virtio.h | 2 ++ 2 files changed, 17 insertions(+), 7 deletions(-) diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 71e16b53e9c1..a3d7ec1c9ea7 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -815,7 +815,8 @@ static bool virtqueue_enable_cb_delayed_split(struct virtqueue *_vq) return true; } -static void *virtqueue_detach_unused_buf_split(struct virtqueue *_vq) +static void *virtqueue_detach_unused_buf_ctx_split(struct virtqueue *_vq, + void **ctx) { struct vring_virtqueue *vq = to_vvq(_vq); unsigned int i; @@ -828,7 +829,7 @@ static void *virtqueue_detach_unused_buf_split(struct virtqueue *_vq) continue; /* detach_buf_split clears data, so grab it now. */ buf = vq->split.desc_state[i].data; - detach_buf_split(vq, i, NULL); + detach_buf_split(vq, i, ctx); vq->split.avail_idx_shadow--; vq->split.vring.avail->idx = cpu_to_virtio16(_vq->vdev, vq->split.avail_idx_shadow); @@ -1526,7 +1527,8 @@ static bool virtqueue_enable_cb_delayed_packed(struct virtqueue *_vq) return true; } -static void *virtqueue_detach_unused_buf_packed(struct virtqueue *_vq) +static void *virtqueue_detach_unused_buf_ctx_packed(struct virtqueue *_vq, + void **ctx) { struct vring_virtqueue *vq = to_vvq(_vq); unsigned int i; @@ -1539,7 +1541,7 @@ static void *virtqueue_detach_unused_buf_packed(struct virtqueue *_vq) continue; /* detach_buf clears data, so grab it now. */ buf = vq->packed.desc_state[i].data; - detach_buf_packed(vq, i, NULL); + detach_buf_packed(vq, i, ctx); END_USE(vq); return buf; } @@ -2018,12 +2020,18 @@ EXPORT_SYMBOL_GPL(virtqueue_enable_cb_delayed); * This is not valid on an active queue; it is useful only for device * shutdown. */ -void *virtqueue_detach_unused_buf(struct virtqueue *_vq) +void *virtqueue_detach_unused_buf_ctx(struct virtqueue *_vq, void **ctx) { struct vring_virtqueue *vq = to_vvq(_vq); - return vq->packed_ring ? virtqueue_detach_unused_buf_packed(_vq) : - virtqueue_detach_unused_buf_split(_vq); + return vq->packed_ring ? + virtqueue_detach_unused_buf_ctx_packed(_vq, ctx) : + virtqueue_detach_unused_buf_ctx_split(_vq, ctx); +} + +void *virtqueue_detach_unused_buf(struct virtqueue *_vq) +{ + return virtqueue_detach_unused_buf_ctx(_vq, NULL); } EXPORT_SYMBOL_GPL(virtqueue_detach_unused_buf); diff --git a/include/linux/virtio.h b/include/linux/virtio.h index b1894e0323fa..8aada4d29e04 100644 --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -78,6 +78,8 @@ bool virtqueue_poll(struct virtqueue *vq, unsigned); bool virtqueue_enable_cb_delayed(struct virtqueue *vq); +void *virtqueue_detach_unused_buf_ctx(struct virtqueue *vq, void **ctx); + void *virtqueue_detach_unused_buf(struct virtqueue *vq); unsigned int virtqueue_get_vring_size(struct virtqueue *vq); -- 2.31.0