From mboxrd@z Thu Jan 1 00:00:00 1970 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=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=unavailable 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 40EB0C433E6 for ; Thu, 4 Mar 2021 02:58:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 00FF664ED7 for ; Thu, 4 Mar 2021 02:58:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231886AbhCDC6H (ORCPT ); Wed, 3 Mar 2021 21:58:07 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:59707 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231659AbhCDC5y (ORCPT ); Wed, 3 Mar 2021 21:57:54 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1614826589; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=27t46XHebLzRKwK6kiEaa5rYWovZp6L1OdarLDSHed8=; b=XG6nlHDlyWhj+tezDz3Z5JVZKUrG7+B1021sdU8VxuLEm7tP79gG+ZgnjL6SGC+1h385t0 HwZv01CVoVb+7yz2QmrGlEvBjh5s8J/N4m0iJ0UNl8wtFKjBew5LZwRXp6L+ht3vNXJQo5 WTKHpviY91Rh0ggxQWevZEc9lSW77hQ= Received: from mail-pf1-f200.google.com (mail-pf1-f200.google.com [209.85.210.200]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-491-LuKSLyLYNciTZppC4oGqmQ-1; Wed, 03 Mar 2021 21:56:27 -0500 X-MC-Unique: LuKSLyLYNciTZppC4oGqmQ-1 Received: by mail-pf1-f200.google.com with SMTP id x63so17172392pfb.12 for ; Wed, 03 Mar 2021 18:56:27 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=27t46XHebLzRKwK6kiEaa5rYWovZp6L1OdarLDSHed8=; b=M6rSdcUoaBuDdmn/AiX/jD2d5UULSaso1L+6p3gCl/PWmIYmlYJAqFPfJqvMlXocbC VrrV8DsgK9p03a5nTf+PqmJ6wcT9Yh+GQpcJFFtmrece2TJAMrrK9tpFHR9VhG4vhplu DpbOYfZoiGsvkk7v3SZ/Gs+oC//Rq8m1Qjil6ji+keys/QJGJs06uqOf8RCvl3RcuPvj hr1zqg4V7bmaGh85etgTzWRiEsMNp6iIgm70w4u6kgaPhsVU+8oRJYpp8Bw0gjXk7V82 0U3W4UwCNsaK5H5nGBOJGat0Y09A1l8BqzXoqE5yt1w0lZjcMwHKe24aeaaourhXcc98 kBvQ== X-Gm-Message-State: AOAM530qm9HKwto1n7lAebNyrAS1ZqSQkhE+6hwhHCfVd3VftHvdEf/o 2L3zNuI1PVaWigcrpIqdviCetYruVmqfZA/7IUN8jU+vwGJ2EdJSp+JG7AVGPD/RJb54rSg8CUi J/+0l28Na15+w99Ygm4+8W4DJLBycZrbDCl+rQV9TizgWV8YVDQC11D60Z3ri0uY= X-Received: by 2002:a63:511:: with SMTP id 17mr1722721pgf.173.1614826586304; Wed, 03 Mar 2021 18:56:26 -0800 (PST) X-Google-Smtp-Source: ABdhPJy5O+3/Y8estRnruVL7Uuv/wewORRlTvTGikebpvnF1FMcUf9zFn3m1kmHhqr7CddFgmmra6A== X-Received: by 2002:a63:511:: with SMTP id 17mr1722704pgf.173.1614826586086; Wed, 03 Mar 2021 18:56:26 -0800 (PST) Received: from localhost ([209.132.188.80]) by smtp.gmail.com with ESMTPSA id w188sm25973503pfw.177.2021.03.03.18.56.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 Mar 2021 18:56:25 -0800 (PST) From: Coiby Xu To: netdev@vger.kernel.org Cc: kexec@lists.infradead.org, intel-wired-lan@lists.osuosl.org, Jakub Kicinski , Jesse Brandeburg , Tony Nguyen , "David S. Miller" , linux-kernel@vger.kernel.org (open list) Subject: [PATCH v1 2/3] i40e: use minimal rx and tx ring buffers for kdump Date: Thu, 4 Mar 2021 10:55:42 +0800 Message-Id: <20210304025543.334912-3-coxu@redhat.com> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210304025543.334912-1-coxu@redhat.com> References: <20210304025543.334912-1-coxu@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Use the minimum of the number of descriptors thus we will allocate the minimal ring buffers for kdump. Signed-off-by: Coiby Xu --- drivers/net/ethernet/intel/i40e/i40e_main.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 77bf8c392750..d6868c7aee05 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -11029,6 +11029,11 @@ static int i40e_set_num_rings_in_vsi(struct i40e_vsi *vsi) return -ENODATA; } + if (is_kdump_kernel()) { + vsi->num_tx_desc = I40E_MIN_NUM_DESCRIPTORS; + vsi->num_rx_desc = I40E_MIN_NUM_DESCRIPTORS; + } + return 0; } -- 2.30.1