From patchwork Tue Sep 6 15:07:16 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: 12967679 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 8F552ECAAD5 for ; Tue, 6 Sep 2022 15:16:44 +0000 (UTC) Received: from localhost ([::1]:52880 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oVaJf-0007oM-Ew for qemu-devel@archiver.kernel.org; Tue, 06 Sep 2022 11:16:43 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:37796) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oVaAz-0004tH-5f for qemu-devel@nongnu.org; Tue, 06 Sep 2022 11:07:45 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:32788) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oVaAt-0002IL-NZ for qemu-devel@nongnu.org; Tue, 06 Sep 2022 11:07:44 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1662476859; 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: in-reply-to:in-reply-to:references:references; bh=1bseDS+wOobKWNpI52Cr9QlPEX2vQfsnWTkOXDELPEw=; b=B4Zb+7pLivnlVgzn7bK3KxP4Ii3UNPDaiTOY8oqxQolCsOdoqWoi6KQI7OEUgwoYe6OG4S X1rLdildy8GKS/DdHKowIMzDZBa4vwUuT6HhdmYcShr8cjvfF/LgfSmWs4EvIopk7yOKWR zSb/UBM7VWrov4NdrZkHU352QaVHGzY= 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-564-vdB46o3OMHSQY6kin3r9hA-1; Tue, 06 Sep 2022 11:07:35 -0400 X-MC-Unique: vdB46o3OMHSQY6kin3r9hA-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 8AD313C01D86; Tue, 6 Sep 2022 15:07:34 +0000 (UTC) Received: from eperezma.remote.csb (unknown [10.39.195.176]) by smtp.corp.redhat.com (Postfix) with ESMTP id AC47040D296C; Tue, 6 Sep 2022 15:07:31 +0000 (UTC) From: =?utf-8?q?Eugenio_P=C3=A9rez?= To: qemu-devel@nongnu.org Cc: Stefan Hajnoczi , Harpreet Singh Anand , Stefano Garzarella , Si-Wei Liu , Jason Wang , Parav Pandit , Liuxiangdong , Laurent Vivier , Zhu Lingshan , Cindy Lu , Eli Cohen , "Michael S. Tsirkin" , Paolo Bonzini , "Gonglei (Arei)" , Cornelia Huck , Gautam Dawar Subject: [PATCH v4 3/6] vdpa: Add vhost_vdpa_net_load_mq Date: Tue, 6 Sep 2022 17:07:16 +0200 Message-Id: <20220906150719.1134955-4-eperezma@redhat.com> In-Reply-To: <20220906150719.1134955-1-eperezma@redhat.com> References: <20220906150719.1134955-1-eperezma@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.11.54.2 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: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, T_SCC_BODY_TEXT_LINE=-0.01, T_SPF_TEMPERROR=0.01 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" Same way as with the MAC, restore the expected number of queues at device's start. Signed-off-by: Eugenio Pérez --- net/vhost-vdpa.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c index e799e744cd..3950e4f25d 100644 --- a/net/vhost-vdpa.c +++ b/net/vhost-vdpa.c @@ -400,6 +400,28 @@ static int vhost_vdpa_net_load_mac(VhostVDPAState *s, const VirtIONet *n) return 0; } +static int vhost_vdpa_net_load_mq(VhostVDPAState *s, + const VirtIONet *n) +{ + struct virtio_net_ctrl_mq mq; + uint64_t features = n->parent_obj.guest_features; + ssize_t dev_written; + + if (!(features & BIT_ULL(VIRTIO_NET_F_MQ))) { + return 0; + } + + mq.virtqueue_pairs = cpu_to_le16(n->curr_queue_pairs); + dev_written = vhost_vdpa_net_load_cmd(s, VIRTIO_NET_CTRL_MQ, + VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET, &mq, + sizeof(mq)); + if (unlikely(dev_written < 0)) { + return dev_written; + } + + return *s->status != VIRTIO_NET_OK; +} + static int vhost_vdpa_net_load(NetClientState *nc) { VhostVDPAState *s = DO_UPCAST(VhostVDPAState, nc, nc); @@ -418,6 +440,10 @@ static int vhost_vdpa_net_load(NetClientState *nc) if (unlikely(r < 0)) { return r; } + r = vhost_vdpa_net_load_mq(s, n); + if (unlikely(r)) { + return r; + } return 0; }