From patchwork Wed Aug 24 18:35:47 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: 12953886 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 C3472C00140 for ; Wed, 24 Aug 2022 18:39:00 +0000 (UTC) Received: from localhost ([::1]:47126 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oQvHH-0002EZ-Sw for qemu-devel@archiver.kernel.org; Wed, 24 Aug 2022 14:38:59 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:46558) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oQvEZ-0007a2-Jk for qemu-devel@nongnu.org; Wed, 24 Aug 2022 14:36:12 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:36169) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oQvEV-0005Ru-C3 for qemu-devel@nongnu.org; Wed, 24 Aug 2022 14:36:10 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1661366166; 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=naaRwhcnqZscdMw6fcVC2/f7vDSLifPy1NzGabm4hQk=; b=gOggw3BS2KzUx00diqim7H/gjXB8GRGzCzbsGfW28A3Po/TwHfX+/bGeWz6tDZ1S/q45/P qb1QmhVVjd1H6PZ3A1cdSo659FANZMKe9HPppeXkZrojKYomCXrTvHoiRGhObokNhJDl66 iG60/wn21pTl4dQcc06S3/FklgJ+Fn8= 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-156-Q3NFcxfXPWqQEUubYJy4Yg-1; Wed, 24 Aug 2022 14:36:03 -0400 X-MC-Unique: Q3NFcxfXPWqQEUubYJy4Yg-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id A0BAE293248E; Wed, 24 Aug 2022 18:36:02 +0000 (UTC) Received: from eperezma.remote.csb (unknown [10.39.193.52]) by smtp.corp.redhat.com (Postfix) with ESMTP id 1C95B2166B29; Wed, 24 Aug 2022 18:35:59 +0000 (UTC) From: =?utf-8?q?Eugenio_P=C3=A9rez?= To: qemu-devel@nongnu.org Cc: Cindy Lu , Stefano Garzarella , "Michael S. Tsirkin" , Liuxiangdong , Stefan Hajnoczi , Laurent Vivier , Cornelia Huck , Gautam Dawar , Jason Wang , Harpreet Singh Anand , "Gonglei (Arei)" , Parav Pandit , Paolo Bonzini , Zhu Lingshan , Eli Cohen Subject: [PATCH v2 2/6] vdpa: extract vhost_vdpa_net_load_mac from vhost_vdpa_net_load Date: Wed, 24 Aug 2022 20:35:47 +0200 Message-Id: <20220824183551.197052-3-eperezma@redhat.com> In-Reply-To: <20220824183551.197052-1-eperezma@redhat.com> References: <20220824183551.197052-1-eperezma@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.78 on 10.11.54.6 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, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-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" Since there may be many commands we need to issue to load the NIC state, let's split them in individual functions Signed-off-by: Eugenio Pérez --- v2: Add vhost_vdpa_net_load_cmd helper --- net/vhost-vdpa.c | 54 ++++++++++++++++++++++++++++++++---------------- 1 file changed, 36 insertions(+), 18 deletions(-) diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c index 468e460ac2..c89e2262d9 100644 --- a/net/vhost-vdpa.c +++ b/net/vhost-vdpa.c @@ -365,35 +365,31 @@ static ssize_t vhost_vdpa_net_cvq_add(VhostVDPAState *s, size_t out_len, return vhost_svq_poll(svq); } -static int vhost_vdpa_net_load(NetClientState *nc) +static ssize_t vhost_vdpa_net_load_cmd(VhostVDPAState *s, + const struct virtio_net_ctrl_hdr *ctrl, + const void *data, size_t data_size) { - VhostVDPAState *s = DO_UPCAST(VhostVDPAState, nc, nc); - const struct vhost_vdpa *v = &s->vhost_vdpa; - const VirtIONet *n; - uint64_t features; + assert(data_size < vhost_vdpa_net_cvq_cmd_page_len() - sizeof(*ctrl)); - assert(nc->info->type == NET_CLIENT_DRIVER_VHOST_VDPA); + memcpy(s->cvq_cmd_out_buffer, ctrl, sizeof(*ctrl)); + memcpy(s->cvq_cmd_out_buffer + sizeof(ctrl), data, data_size); - if (!v->shadow_vqs_enabled) { - return 0; - } + return vhost_vdpa_net_cvq_add(s, sizeof(ctrl) + data_size, + sizeof(virtio_net_ctrl_ack)); +} - n = VIRTIO_NET(v->dev->vdev); - features = n->parent_obj.guest_features; +static int vhost_vdpa_net_load_mac(VhostVDPAState *s, const VirtIONet *n) +{ + uint64_t features = n->parent_obj.guest_features; if (features & BIT_ULL(VIRTIO_NET_F_CTRL_MAC_ADDR)) { const struct virtio_net_ctrl_hdr ctrl = { .class = VIRTIO_NET_CTRL_MAC, .cmd = VIRTIO_NET_CTRL_MAC_ADDR_SET, }; - char *cursor = s->cvq_cmd_out_buffer; ssize_t dev_written; - memcpy(cursor, &ctrl, sizeof(ctrl)); - cursor += sizeof(ctrl); - memcpy(cursor, n->mac, sizeof(n->mac)); - - dev_written = vhost_vdpa_net_cvq_add(s, sizeof(ctrl) + sizeof(n->mac), - sizeof(virtio_net_ctrl_ack)); + dev_written = vhost_vdpa_net_load_cmd(s, &ctrl, n->mac, + sizeof(n->mac)); if (unlikely(dev_written < 0)) { return dev_written; } @@ -404,6 +400,28 @@ static int vhost_vdpa_net_load(NetClientState *nc) return 0; } +static int vhost_vdpa_net_load(NetClientState *nc) +{ + VhostVDPAState *s = DO_UPCAST(VhostVDPAState, nc, nc); + struct vhost_vdpa *v = &s->vhost_vdpa; + const VirtIONet *n; + int r; + + assert(nc->info->type == NET_CLIENT_DRIVER_VHOST_VDPA); + + if (!v->shadow_vqs_enabled) { + return 0; + } + + n = VIRTIO_NET(v->dev->vdev); + r = vhost_vdpa_net_load_mac(s, n); + if (unlikely(r < 0)) { + return r; + } + + return 0; +} + static NetClientInfo net_vhost_vdpa_cvq_info = { .type = NET_CLIENT_DRIVER_VHOST_VDPA, .size = sizeof(VhostVDPAState),