From patchwork Wed Feb 24 05:53:55 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jason Wang X-Patchwork-Id: 12101309 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 24759C433DB for ; Wed, 24 Feb 2021 05:55:48 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 7020064EBB for ; Wed, 24 Feb 2021 05:55:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7020064EBB Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:50436 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lEn9G-00036j-7F for qemu-devel@archiver.kernel.org; Wed, 24 Feb 2021 00:55:46 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:35748) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lEn7j-0001Yi-PW for qemu-devel@nongnu.org; Wed, 24 Feb 2021 00:54:11 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:59352) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1lEn7i-0003qG-A7 for qemu-devel@nongnu.org; Wed, 24 Feb 2021 00:54:11 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1614146049; 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=LWQBYpqHeqPKZXPtrrDMpX3vpjQmFCAgiD8xPTWwcRY=; b=I7nElcUAgjlePHRytx/IN3AxK795AOiF6ZuElDMqNQG5MjbliLZh0+1nTVGl8s+zvNeaod oA+I7W0OlFD8dUlGgENdrUoA24HgJB/8mpWwisr3PCeOjF9eoeZebir8vdD7Kj2ziCGmd+ qkUp3779dHwHV3QFTWex3PeDtyD+oTs= 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-29-yAX1tSFdOHSK1AUuiFYQbQ-1; Wed, 24 Feb 2021 00:54:07 -0500 X-MC-Unique: yAX1tSFdOHSK1AUuiFYQbQ-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 81AC21020C20 for ; Wed, 24 Feb 2021 05:54:06 +0000 (UTC) Received: from jason-ThinkPad-X1-Carbon-6th.redhat.com (ovpn-13-164.pek2.redhat.com [10.72.13.164]) by smtp.corp.redhat.com (Postfix) with ESMTP id 2923B6061F; Wed, 24 Feb 2021 05:54:03 +0000 (UTC) From: Jason Wang To: jasowang@redhat.com, qemu-devel@nongnu.org Subject: [PATCH 0/6] Detect reentrant RX casue by loopback Date: Wed, 24 Feb 2021 13:53:55 +0800 Message-Id: <20210224055401.492407-1-jasowang@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=jasowang@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=jasowang@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 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_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ppandit@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Hi All: Followed by commit 22dc8663d9 ("net: forbid the reentrant RX"), we still need to fix the issues casued by loopback mode where the NIC usually it via calling nc->info->receive() directly. The fix is to introduce new network helper and check the queue->delivering. Thanks Jason Wang (6): net: introduce qemu_receive_packet() e1000: switch to use qemu_receive_packet() for loopback dp8393x: switch to use qemu_receive_packet() for loopback packet msf2-mac: switch to use qemu_receive_packet() for loopback sungem: switch to use qemu_receive_packet() for loopback tx_pkt: switch to use qemu_receive_packet_iov() for loopback hw/net/dp8393x.c | 2 +- hw/net/e1000.c | 2 +- hw/net/msf2-emac.c | 2 +- hw/net/net_tx_pkt.c | 2 +- hw/net/sungem.c | 2 +- include/net/net.h | 5 +++++ include/net/queue.h | 8 ++++++++ net/net.c | 38 +++++++++++++++++++++++++++++++------- net/queue.c | 22 ++++++++++++++++++++++ 9 files changed, 71 insertions(+), 12 deletions(-)