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=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 255E7C433E0 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 D66E964ED4 for ; Thu, 4 Mar 2021 02:58:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231881AbhCDC6H (ORCPT ); Wed, 3 Mar 2021 21:58:07 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:58962 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231664AbhCDC54 (ORCPT ); Wed, 3 Mar 2021 21:57:56 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1614826591; 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=BOfRJWt/UcbkBkVojuk64kA1oZLT8Wn8rdXEndAj17UeYooYI7F1Bqu0d2UwvPia7w26zd MIrHevbpKF0f04ffLa13D2PZwbJz9s9H4+6R8SAIukopl3vph25cZKOjzDejqRD+bfuTIS 6r6KQEFgUMK1bczduPElOZ99P8p+PLw= 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-554-Np_ryvL3MMu9rqLrkHrRuA-1; Wed, 03 Mar 2021 21:56:27 -0500 X-MC-Unique: Np_ryvL3MMu9rqLrkHrRuA-1 Received: by mail-pf1-f200.google.com with SMTP id b12so17066693pfb.15 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=VN6NSn0UWYP9GaNNN/D+GG6BPgBkMjigpRNUms5JvDRPROwxxOjNnp5khWKEOpRVrd ejh0WGTDqbpaN4UhY+EGqAlu7Khl0YpveXRVfQUJjBqK1Xjjxx7MmZSuwPQe/DDbDw6h P8NHBmYo0Z4VVzeGPx/eDkJbZVgMkUk7YKnfJl9PGuuJVqMRUmLomDXFjyVsPhERSNdo p5V3cK0uETENFDeqIYKKyvumpMWvC8JnMytvYBQoc7CRZGLYr0jAchsE16/K0Eg4So41 QKtygeShZGBDTVkcofu5Cq/+yboOvhhJGiVQWsaRA7F+dP2NzcjmPgksc/pNADcSFHtH SxYg== X-Gm-Message-State: AOAM532iZb7sOA/YERFsyvRby0QIrho8tVxf63IMIHhgWapPxa7EPRrp U38oXy4foRQUY3OyeZYDTuy9Xou1E0XkaKFR663vjbeA6dcPspzt0/SUFvem1P/klOk/A+dnngf N6GSpoemaMUqvcNYw7F0Dz1hF X-Received: by 2002:a63:511:: with SMTP id 17mr1722712pgf.173.1614826586229; 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: linux-kernel@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