From patchwork Thu Oct 20 15:52:47 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Eugenio Perez Martin X-Patchwork-Id: 13013723 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 A09D5C4332F for ; Thu, 20 Oct 2022 16:14:41 +0000 (UTC) Received: from localhost ([::1]:46324 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1olYBs-0006bt-7F for qemu-devel@archiver.kernel.org; Thu, 20 Oct 2022 12:14:40 -0400 Received: from [::1] (helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1olY6e-0005j9-PD for qemu-devel@archiver.kernel.org; Thu, 20 Oct 2022 12:09:16 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:58026) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1olXrS-0006Q0-Iw for qemu-devel@nongnu.org; Thu, 20 Oct 2022 11:53:36 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:49719) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1olXrC-00065J-Bl for qemu-devel@nongnu.org; Thu, 20 Oct 2022 11:53:21 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1666281194; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=xePMAbB6TuUMKDZBvP5YKkyZHr0BKWOTXCcOOq0zH+g=; b=FhbUuVYq7MYhuFhGUshTjnitwcjZWIYKY6QhaDu1pKagZ6oofcXVdkrLn/gVFK5jz52Le7 mfwpVQkk7V03O2YhQm4Jx6lVuxCrhkdP3BH/WlfY9iR+klk+ExpJRqAQhKItxp3lOqRYxF QEOhh/2VBY65B6g+vjfguR4s38pDCLU= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-214--m6FXL6eNMe8geXhiZ4hHQ-1; Thu, 20 Oct 2022 11:53:11 -0400 X-MC-Unique: -m6FXL6eNMe8geXhiZ4hHQ-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id DB36A1C08976; Thu, 20 Oct 2022 15:53:10 +0000 (UTC) Received: from eperezma.remote.csb (unknown [10.39.192.230]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9DBA240CA41E; Thu, 20 Oct 2022 15:52:57 +0000 (UTC) From: =?utf-8?q?Eugenio_P=C3=A9rez?= To: qemu-devel@nongnu.org Cc: Liuxiangdong , Parav Pandit , Harpreet Singh Anand , "Michael S. Tsirkin" , Laurent Vivier , Zhu Lingshan , Gautam Dawar , Eli Cohen , Stefano Garzarella , Cindy Lu , Jason Wang , Si-Wei Liu Subject: [PATCH 0/4] Shadow VirtQueue event index support Date: Thu, 20 Oct 2022 17:52:47 +0200 Message-Id: <20221020155251.398735-1-eperezma@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.1 Received-SPF: pass client-ip=170.10.133.124; envelope-from=eperezma@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -23 X-Spam_score: -2.4 X-Spam_bar: -- X-Spam_report: (-2.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.251, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Event idx helps to reduce the number of notifications between the device and the driver. It allows them to specify an index on the circular descriptors rings where to issue the notification, instead of a single binary indicator. Adding support for SVQ. These patches are sent on top of [1] series, so trivial conflicts could arise if it is applied directly on master. Future versions can be not based on it is more convenient. [1] https://lists.nongnu.org/archive/html/qemu-devel/2022-10/msg03280.html Eugenio Pérez (4): vhost: allocate event_idx fields on vring vhost: toggle device callbacks using used event idx vhost: use avail event idx on vhost_svq_kick vhost: Accept event idx flag hw/virtio/vhost-shadow-virtqueue.c | 39 ++++++++++++++++++++++++------ 1 file changed, 31 insertions(+), 8 deletions(-) Reviewed-by: Michael S. Tsirkin