From patchwork Tue Feb 25 15:04:26 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michal Schmidt X-Patchwork-Id: 324001 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 50BF42C023F for ; Wed, 26 Feb 2014 02:04:48 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752978AbaBYPEj (ORCPT ); Tue, 25 Feb 2014 10:04:39 -0500 Received: from mx1.redhat.com ([209.132.183.28]:40129 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752935AbaBYPEi (ORCPT ); Tue, 25 Feb 2014 10:04:38 -0500 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s1PF4bsR014080 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 25 Feb 2014 10:04:37 -0500 Received: from hp.brq.redhat.com (dhcp-27-43.brq.redhat.com [10.34.27.43]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s1PF4R66018379; Tue, 25 Feb 2014 10:04:34 -0500 From: Michal Schmidt To: davem@davemloft.net Cc: netdev@vger.kernel.org, ariele@broadcom.com, dmitry@broadcom.com, yuvalmin@broadcom.com Subject: [PATCH net-next 3/3] bnx2x: save RAM in kdump kernel by disabling TPA Date: Tue, 25 Feb 2014 16:04:26 +0100 Message-Id: <1393340666-3539-4-git-send-email-mschmidt@redhat.com> In-Reply-To: <1393340666-3539-1-git-send-email-mschmidt@redhat.com> References: <1393340666-3539-1-git-send-email-mschmidt@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org When running in a kdump kernel, disable TPA. This saves memory, which tends to be scarce in kdump. TPA, being a receive acceleration, is unlikely to be useful for kdump, whose purpose is to send the memory image out. This saves additional 5 MB in the kdump environment. Signed-off-by: Michal Schmidt --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index 8443915..13de536 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -11783,6 +11783,8 @@ static int bnx2x_init_bp(struct bnx2x *bp) bp->disable_tpa = disable_tpa; bp->disable_tpa |= IS_MF_STORAGE_SD(bp) || IS_MF_FCOE_AFEX(bp); + /* Reduce memory usage in kdump environment by disabling TPA */ + bp->disable_tpa |= reset_devices; /* Set TPA flags */ if (bp->disable_tpa) {