From patchwork Thu Jul 27 22:26:23 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseniy Krasnov X-Patchwork-Id: 13330910 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 E5CA3C001DC for ; Thu, 27 Jul 2023 22:32:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232906AbjG0WcU (ORCPT ); Thu, 27 Jul 2023 18:32:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46650 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232832AbjG0WcR (ORCPT ); Thu, 27 Jul 2023 18:32:17 -0400 Received: from mx1.sberdevices.ru (mx2.sberdevices.ru [45.89.224.132]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C6EA42D63; Thu, 27 Jul 2023 15:32:13 -0700 (PDT) Received: from p-infra-ksmg-sc-msk02 (localhost [127.0.0.1]) by mx1.sberdevices.ru (Postfix) with ESMTP id 14B04120004; Fri, 28 Jul 2023 01:32:11 +0300 (MSK) DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.sberdevices.ru 14B04120004 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sberdevices.ru; s=mail; t=1690497131; bh=IsmKJ/jqcuZa5LQ1yHb+N0LqenyHgFebC0piM5XZJFg=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type:From; b=Uvh2Ljr2mHc0NV3egjwZbzYEfZAg7+leKTU2cwdMmxgr62H6hbjyX6xGK1LCgxdLl C9QFR/DIgm+UQpJrcVavbtawsIEbFL7Ax2rBZSk9YhfxFJbxxVxWYBt8lHpANyH1yy 408JPrrBXhAZ+LLIxQwL8uPgxMqPKAXqpDz+QRtcslJ08TYMMtOIxsZyFyKNgwbNOk 2t5RNDFIWXFujqw5CAHxpZ8Mw4cOcy7QCOhBWS142ajlOPNFGYvikDADZD/b4nMn4l YSINVJ5lKMNYAsUbCQaLmWBsTHoMOpQna2Pg7UzWscQW22Aw+ij8cR9T3c06WbJUob xXuSLYjO/uBJw== Received: from p-i-exch-sc-m01.sberdevices.ru (p-i-exch-sc-m01.sberdevices.ru [172.16.192.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.sberdevices.ru (Postfix) with ESMTPS; Fri, 28 Jul 2023 01:32:10 +0300 (MSK) Received: from localhost.localdomain (100.64.160.123) by p-i-exch-sc-m01.sberdevices.ru (172.16.192.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.30; Fri, 28 Jul 2023 01:31:50 +0300 From: Arseniy Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , "Michael S. Tsirkin" , Jason Wang , Bobby Eshleman CC: , , , , , , , Arseniy Krasnov Subject: [PATCH net-next v4 0/4] vsock/virtio/vhost: MSG_ZEROCOPY preparations Date: Fri, 28 Jul 2023 01:26:23 +0300 Message-ID: <20230727222627.1895355-1-AVKrasnov@sberdevices.ru> X-Mailer: git-send-email 2.35.0 MIME-Version: 1.0 X-Originating-IP: [100.64.160.123] X-ClientProxiedBy: p-i-exch-sc-m02.sberdevices.ru (172.16.192.103) To p-i-exch-sc-m01.sberdevices.ru (172.16.192.107) X-KSMG-Rule-ID: 10 X-KSMG-Message-Action: clean X-KSMG-AntiSpam-Lua-Profiles: 178796 [Jul 22 2023] X-KSMG-AntiSpam-Version: 5.9.59.0 X-KSMG-AntiSpam-Envelope-From: AVKrasnov@sberdevices.ru X-KSMG-AntiSpam-Rate: 0 X-KSMG-AntiSpam-Status: not_detected X-KSMG-AntiSpam-Method: none X-KSMG-AntiSpam-Auth: dkim=none X-KSMG-AntiSpam-Info: LuaCore: 525 525 723604743bfbdb7e16728748c3fa45e9eba05f7d, {Tracking_uf_ne_domains}, {Tracking_from_domain_doesnt_match_to}, FromAlignment: s, ApMailHostAddress: 100.64.160.123 X-MS-Exchange-Organization-SCL: -1 X-KSMG-AntiSpam-Interceptor-Info: scan successful X-KSMG-AntiPhishing: Clean, bases: 2023/07/23 10:45:00 X-KSMG-LinksScanning: Clean, bases: 2023/07/23 10:46:00 X-KSMG-AntiVirus: Kaspersky Secure Mail Gateway, version 2.0.1.6960, bases: 2023/07/23 08:49:00 #21663637 X-KSMG-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Hello, this patchset is first of three parts of another big patchset for MSG_ZEROCOPY flag support: https://lore.kernel.org/netdev/20230701063947.3422088-1-AVKrasnov@sberdevices.ru/ During review of this series, Stefano Garzarella suggested to split it for three parts to simplify review and merging: 1) virtio and vhost updates (for fragged skbs) <--- this patchset 2) AF_VSOCK updates (allows to enable MSG_ZEROCOPY mode and read tx completions) and update for Documentation/. 3) Updates for tests and utils. This series enables handling of fragged skbs in virtio and vhost parts. Newly logic won't be triggered, because SO_ZEROCOPY options is still impossible to enable at this moment (next bunch of patches from big set above will enable it). I've included changelog to some patches anyway, because there were some comments during review of last big patchset from the link above. Head for this patchset is 9d0cd5d25f7d45bce01bbb3193b54ac24b3a60f3 Link to v1: https://lore.kernel.org/netdev/20230717210051.856388-1-AVKrasnov@sberdevices.ru/ Link to v2: https://lore.kernel.org/netdev/20230718180237.3248179-1-AVKrasnov@sberdevices.ru/ Link to v3: https://lore.kernel.org/netdev/20230720214245.457298-1-AVKrasnov@sberdevices.ru/ Changelog: * Patchset rebased and tested on new HEAD of net-next (see hash above). * See per-patch changelog after ---. Arseniy Krasnov (4): vsock/virtio/vhost: read data from non-linear skb vsock/virtio: support to send non-linear skb vsock/virtio: non-linear skb handling for tap vsock/virtio: MSG_ZEROCOPY flag support drivers/vhost/vsock.c | 14 +- include/linux/virtio_vsock.h | 6 + net/vmw_vsock/virtio_transport.c | 79 +++++- net/vmw_vsock/virtio_transport_common.c | 312 ++++++++++++++++++------ 4 files changed, 330 insertions(+), 81 deletions(-)