From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michal Schmidt 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> References: <1393340666-3539-1-git-send-email-mschmidt@redhat.com> Cc: netdev@vger.kernel.org, ariele@broadcom.com, dmitry@broadcom.com, yuvalmin@broadcom.com To: davem@davemloft.net Return-path: 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 In-Reply-To: <1393340666-3539-1-git-send-email-mschmidt@redhat.com> Sender: netdev-owner@vger.kernel.org List-ID: 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) { -- 1.8.5.3