From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 4ED7CA052B; Thu, 30 Jul 2020 17:13:41 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 14A23E07; Thu, 30 Jul 2020 17:13:40 +0200 (CEST) Received: from mail-pj1-f66.google.com (mail-pj1-f66.google.com [209.85.216.66]) by dpdk.org (Postfix) with ESMTP id E9627E07 for ; Thu, 30 Jul 2020 17:13:38 +0200 (CEST) Received: by mail-pj1-f66.google.com with SMTP id t15so4786329pjq.5 for ; Thu, 30 Jul 2020 08:13:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=u6OoBNGRsq22AT5yqSVPNxkygMyiwmYmJcpqjhnwY0Q=; b=xeS4Il4RmOZkacBFPLTqzOX4iWfDgi5+TcvAk1kt6Tp1SbJL/NU1/G5WTvVTqogtNs W4HvTTbFUulDzcpVQisxRSaxD4qJaDgOKG/3Y1RvH2ND/Sigs8v2FecASVtemNfwzj79 zrF6Lm4s8sT8uETv9qpO2n6PO7YQrIlFiU2pgLKmtsM30qHZp2niH4lksguHldNUMHKE KjqqFYtkgde7v9ATQPtB8slQBlo15R0RRrsUaNvq0L6aHZhTwNqi7RO9RXZEM3R08cdb goRqTkMZaWb8Jwbie6nUzZs3+mJOotdILsywcTzb7sUUglUGWuQgB6rhSPaA/AOEpnDH l3uQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=u6OoBNGRsq22AT5yqSVPNxkygMyiwmYmJcpqjhnwY0Q=; b=HwJCr0LVGdl1IE4b61uT24GQYeTY6OrQc7VHg2OLR2zkikb5/FWKtS6dUbXBhZrzWr 3iwwlYUZhLdJsKWZjJT0zVtZpjt6A4HR9iFjgVjqI07B0RLH/P5J5BfcQ9mhh3LRM7nO AT6WWu86qe6WRVlafQ+E5lx7qqoDWJXZAZ+G+VT2Fsciebvc+Pb9fExmfCf53RaGlHT9 0h+jSnSSiZfXCoRGQ8JcSI8YLjrkVnhUBF9IIhkS4SpDopfSNKOfjbj9CSjqYiEuCedN 1GJBsijG75ad0hAXIZDi7YhgChrscOhuID6hlBNjF7SACKO8tjpuQc6SUIVMe73zJwyI uLQA== X-Gm-Message-State: AOAM531/txczYb7dYJ1XLUc4wEq5E1WR5E7MdEM+BXydE50n+4YL6Fcz LqbI6o6UDFdxiaR96zORtNxNlA== X-Google-Smtp-Source: ABdhPJyqs5zlPgeC3EZWN31ABhHWYo6irJxVvgX6UHymUxU9JBHq8SzMwAzGTYS+WuCO5KjzTfM80A== X-Received: by 2002:a17:90a:ce90:: with SMTP id g16mr3844873pju.109.1596122017930; Thu, 30 Jul 2020 08:13:37 -0700 (PDT) Received: from hermes.lan (204-195-22-127.wavecable.com. [204.195.22.127]) by smtp.gmail.com with ESMTPSA id 77sm6541845pfx.85.2020.07.30.08.13.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 30 Jul 2020 08:13:37 -0700 (PDT) Date: Thu, 30 Jul 2020 08:13:17 -0700 From: Stephen Hemminger To: Chas Williams <3chas3@gmail.com> Cc: dev@dpdk.org, sthemmin@microsoft.com, kys@microsoft.com, haiyangz@microsoft.com, longli@microsoft.com, stable@dpdk.org Message-ID: <20200730081317.591e03ee@hermes.lan> In-Reply-To: <20200729135844.16689-1-3chas3@gmail.com> References: <20200729135844.16689-1-3chas3@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-dev] [PATCH] net/netvsc: fix seg fault during transmit X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 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" On Wed, 29 Jul 2020 09:58:44 -0400 Chas Williams <3chas3@gmail.com> wrote: > Commit cc0251813277 ("net/netvsc: split send buffers from Tx > descriptors") changed the way that transmit descriptors are > allocated. They come from a single pool instead of being > individually attached to each mbuf. To find the IOVA, you need > to calculate the offset from the base of the pool. > > Fixes: cc0251813277 ("net/netvsc: split send buffers from Tx descriptors") > Cc: stable@dpdk.org > > Signed-off-by: Chas Williams <3chas3@gmail.com> Acked-by: Stephen Hemminger