From patchwork Tue Jun 29 16:11:28 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Coquelin X-Patchwork-Id: 94990 X-Patchwork-Delegate: maxime.coquelin@redhat.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 8EF21A0C3F; Tue, 29 Jun 2021 18:12:01 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 77885411DD; Tue, 29 Jun 2021 18:11:51 +0200 (CEST) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) by mails.dpdk.org (Postfix) with ESMTP id 2721D411C7 for ; Tue, 29 Jun 2021 18:11:50 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1624983109; 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=z744OsChCa0kJWTigKK4nJUwmyVfah9TWou/0Hr6484=; b=TR/W4AsrBhXh546xFboXocv/bEbh4karQoXLxCkaRA/D4YV8Kafln4Cnc/t+ywMU/5bVhW LcG9o7vuXk2V/v7x8G8AzqB5Bs9xx7mIdskE+FsdrnXAQVKbSuQCHM22Y8pt86zqTO82Yt WvGip/rg5FjH0iJHlzW0/VvUVQy3Tj8= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-541-UI35MkUfMhCDdWkWarqGEg-1; Tue, 29 Jun 2021 12:11:47 -0400 X-MC-Unique: UI35MkUfMhCDdWkWarqGEg-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 8D1AE100C609; Tue, 29 Jun 2021 16:11:46 +0000 (UTC) Received: from max-t490s.redhat.com (unknown [10.36.110.32]) by smtp.corp.redhat.com (Postfix) with ESMTP id 501DD5C1D0; Tue, 29 Jun 2021 16:11:45 +0000 (UTC) From: Maxime Coquelin To: dev@dpdk.org, chenbo.xia@intel.com, david.marchand@redhat.com Cc: Maxime Coquelin , stable@dpdk.org Date: Tue, 29 Jun 2021 18:11:28 +0200 Message-Id: <20210629161133.79472-3-maxime.coquelin@redhat.com> In-Reply-To: <20210629161133.79472-1-maxime.coquelin@redhat.com> References: <20210629161133.79472-1-maxime.coquelin@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=maxime.coquelin@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Subject: [dpdk-dev] [PATCH v7 2/7] vhost: fix missing guest pages table NUMA realloc X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" When the guest allocates virtqueues on a different NUMA node than the one the Vhost metadata are allocated, both the Vhost device struct and the virtqueues struct are reallocated. However, reallocating the guest pages table was missing, which likely causes at least one cross-NUMA accesses for every burst of packets. This patch reallocates this table on the same NUMA node as the other metadata. Fixes: e246896178e6 ("vhost: get guest/host physical address mappings") Cc: stable@dpdk.org Signed-off-by: Maxime Coquelin Reviewed-by: Chenbo Xia --- lib/vhost/vhost_user.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/lib/vhost/vhost_user.c b/lib/vhost/vhost_user.c index b5a84f3dcd..5fb055ea2e 100644 --- a/lib/vhost/vhost_user.c +++ b/lib/vhost/vhost_user.c @@ -558,7 +558,8 @@ numa_realloc(struct virtio_net *dev, int index) } if (oldnode != newnode) { struct rte_vhost_memory *old_mem; - ssize_t mem_size; + struct guest_page *old_gp; + ssize_t mem_size, gp_size; VHOST_LOG_CONFIG(INFO, "reallocate dev from %d to %d node\n", @@ -583,6 +584,17 @@ numa_realloc(struct virtio_net *dev, int index) memcpy(dev->mem, old_mem, mem_size); rte_free(old_mem); + + gp_size = dev->max_guest_pages * sizeof(*dev->guest_pages); + old_gp = dev->guest_pages; + dev->guest_pages = rte_malloc_socket(NULL, gp_size, RTE_CACHE_LINE_SIZE, newnode); + if (!dev->guest_pages) { + dev->guest_pages = old_gp; + goto out; + } + + memcpy(dev->guest_pages, old_gp, gp_size); + rte_free(old_gp); } out: