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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, 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 50C1FC0044C for ; Wed, 7 Nov 2018 13:53:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F38732081D for ; Wed, 7 Nov 2018 13:53:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F38732081D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nxp.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727703AbeKGXYS (ORCPT ); Wed, 7 Nov 2018 18:24:18 -0500 Received: from inva020.nxp.com ([92.121.34.13]:44424 "EHLO inva020.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726411AbeKGXYS (ORCPT ); Wed, 7 Nov 2018 18:24:18 -0500 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 0138A1A0201; Wed, 7 Nov 2018 14:53:48 +0100 (CET) Received: from inva024.eu-rdc02.nxp.com (inva024.eu-rdc02.nxp.com [134.27.226.22]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id E9BDE1A01C4; Wed, 7 Nov 2018 14:53:47 +0100 (CET) Received: from fsr-fed2164-101.ea.freescale.net (fsr-fed2164-101.ea.freescale.net [10.171.82.91]) by inva024.eu-rdc02.nxp.com (Postfix) with ESMTP id B280F20137; Wed, 7 Nov 2018 14:53:47 +0100 (CET) From: Madalin Bucur To: netdev@vger.kernel.org, davem@davemloft.net Cc: linux-kernel@vger.kernel.org, Madalin Bucur Subject: [PATCH] dpaa_eth: add ethtool coalesce control Date: Wed, 7 Nov 2018 15:53:43 +0200 Message-Id: <1541598823-22533-1-git-send-email-madalin.bucur@nxp.com> X-Mailer: git-send-email 2.1.0 Reply-to: madalin.bucur@nxp.com X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Allow ethtool control of the DPAA QMan portal interrupt coalescing settings. Signed-off-by: Madalin Bucur --- drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c | 41 ++++++++++++++++++++++ 1 file changed, 41 insertions(+) diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c b/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c index 13d6e2272ece..548a7e8893d8 100644 --- a/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c +++ b/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c @@ -529,6 +529,45 @@ static int dpaa_get_ts_info(struct net_device *net_dev, return 0; } +static int dpaa_get_coalesce(struct net_device *dev, + struct ethtool_coalesce *c) +{ + struct qman_portal *portal; + u32 period; + u8 thresh; + + portal = qman_get_affine_portal(smp_processor_id()); + qman_portal_get_iperiod(portal, &period); + qman_dqrr_get_ithresh(portal, &thresh); + + c->rx_coalesce_usecs = period; + c->rx_max_coalesced_frames = thresh; + c->use_adaptive_rx_coalesce = false; + + return 0; +} + +static int dpaa_set_coalesce(struct net_device *dev, + struct ethtool_coalesce *c) +{ + const cpumask_t *cpus = qman_affine_cpus(); + struct qman_portal *portal; + u32 period; + u8 thresh; + int cpu; + + period = c->rx_coalesce_usecs; + thresh = c->rx_max_coalesced_frames; + + for_each_cpu(cpu, cpus) { + portal = qman_get_affine_portal(cpu); + qman_portal_set_iperiod(portal, period); + qman_dqrr_set_ithresh(portal, thresh); + } + + return 0; +} + const struct ethtool_ops dpaa_ethtool_ops = { .get_drvinfo = dpaa_get_drvinfo, .get_msglevel = dpaa_get_msglevel, @@ -545,4 +584,6 @@ const struct ethtool_ops dpaa_ethtool_ops = { .get_rxnfc = dpaa_get_rxnfc, .set_rxnfc = dpaa_set_rxnfc, .get_ts_info = dpaa_get_ts_info, + .get_coalesce = dpaa_get_coalesce, + .set_coalesce = dpaa_set_coalesce, }; -- 2.1.0