mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-23 17:46:15 +07:00
5514174fe9
Make return value void since function never return meaningfull value Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com> Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
416 lines
12 KiB
C
416 lines
12 KiB
C
/* Copyright 2008-2016 Freescale Semiconductor, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Freescale Semiconductor nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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*
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* ALTERNATIVELY, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") as published by the Free Software
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* Foundation, either version 2 of that License or (at your option) any
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* later version.
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*
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* THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/string.h>
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#include "dpaa_eth.h"
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#include "mac.h"
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static const char dpaa_stats_percpu[][ETH_GSTRING_LEN] = {
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"interrupts",
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"rx packets",
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"tx packets",
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"tx confirm",
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"tx S/G",
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"tx error",
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"rx error",
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};
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static char dpaa_stats_global[][ETH_GSTRING_LEN] = {
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/* dpa rx errors */
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"rx dma error",
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"rx frame physical error",
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"rx frame size error",
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"rx header error",
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/* demultiplexing errors */
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"qman cg_tdrop",
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"qman wred",
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"qman error cond",
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"qman early window",
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"qman late window",
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"qman fq tdrop",
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"qman fq retired",
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"qman orp disabled",
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/* congestion related stats */
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"congestion time (ms)",
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"entered congestion",
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"congested (0/1)"
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};
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#define DPAA_STATS_PERCPU_LEN ARRAY_SIZE(dpaa_stats_percpu)
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#define DPAA_STATS_GLOBAL_LEN ARRAY_SIZE(dpaa_stats_global)
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static int dpaa_get_link_ksettings(struct net_device *net_dev,
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struct ethtool_link_ksettings *cmd)
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{
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if (!net_dev->phydev) {
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netdev_dbg(net_dev, "phy device not initialized\n");
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return 0;
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}
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phy_ethtool_ksettings_get(net_dev->phydev, cmd);
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return 0;
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}
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static int dpaa_set_link_ksettings(struct net_device *net_dev,
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const struct ethtool_link_ksettings *cmd)
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{
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int err;
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if (!net_dev->phydev) {
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netdev_err(net_dev, "phy device not initialized\n");
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return -ENODEV;
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}
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err = phy_ethtool_ksettings_set(net_dev->phydev, cmd);
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if (err < 0)
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netdev_err(net_dev, "phy_ethtool_ksettings_set() = %d\n", err);
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return err;
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}
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static void dpaa_get_drvinfo(struct net_device *net_dev,
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struct ethtool_drvinfo *drvinfo)
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{
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int len;
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strlcpy(drvinfo->driver, KBUILD_MODNAME,
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sizeof(drvinfo->driver));
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len = snprintf(drvinfo->version, sizeof(drvinfo->version),
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"%X", 0);
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len = snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
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"%X", 0);
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if (len >= sizeof(drvinfo->fw_version)) {
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/* Truncated output */
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netdev_notice(net_dev, "snprintf() = %d\n", len);
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}
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strlcpy(drvinfo->bus_info, dev_name(net_dev->dev.parent->parent),
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sizeof(drvinfo->bus_info));
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}
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static u32 dpaa_get_msglevel(struct net_device *net_dev)
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{
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return ((struct dpaa_priv *)netdev_priv(net_dev))->msg_enable;
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}
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static void dpaa_set_msglevel(struct net_device *net_dev,
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u32 msg_enable)
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{
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((struct dpaa_priv *)netdev_priv(net_dev))->msg_enable = msg_enable;
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}
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static int dpaa_nway_reset(struct net_device *net_dev)
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{
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int err;
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if (!net_dev->phydev) {
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netdev_err(net_dev, "phy device not initialized\n");
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return -ENODEV;
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}
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err = 0;
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if (net_dev->phydev->autoneg) {
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err = phy_start_aneg(net_dev->phydev);
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if (err < 0)
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netdev_err(net_dev, "phy_start_aneg() = %d\n",
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err);
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}
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return err;
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}
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static void dpaa_get_pauseparam(struct net_device *net_dev,
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struct ethtool_pauseparam *epause)
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{
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struct mac_device *mac_dev;
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struct dpaa_priv *priv;
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priv = netdev_priv(net_dev);
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mac_dev = priv->mac_dev;
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if (!net_dev->phydev) {
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netdev_err(net_dev, "phy device not initialized\n");
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return;
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}
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epause->autoneg = mac_dev->autoneg_pause;
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epause->rx_pause = mac_dev->rx_pause_active;
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epause->tx_pause = mac_dev->tx_pause_active;
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}
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static int dpaa_set_pauseparam(struct net_device *net_dev,
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struct ethtool_pauseparam *epause)
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{
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struct mac_device *mac_dev;
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struct phy_device *phydev;
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bool rx_pause, tx_pause;
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struct dpaa_priv *priv;
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u32 newadv, oldadv;
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int err;
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priv = netdev_priv(net_dev);
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mac_dev = priv->mac_dev;
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phydev = net_dev->phydev;
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if (!phydev) {
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netdev_err(net_dev, "phy device not initialized\n");
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return -ENODEV;
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}
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if (!(phydev->supported & SUPPORTED_Pause) ||
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(!(phydev->supported & SUPPORTED_Asym_Pause) &&
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(epause->rx_pause != epause->tx_pause)))
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return -EINVAL;
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/* The MAC should know how to handle PAUSE frame autonegotiation before
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* adjust_link is triggered by a forced renegotiation of sym/asym PAUSE
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* settings.
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*/
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mac_dev->autoneg_pause = !!epause->autoneg;
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mac_dev->rx_pause_req = !!epause->rx_pause;
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mac_dev->tx_pause_req = !!epause->tx_pause;
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/* Determine the sym/asym advertised PAUSE capabilities from the desired
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* rx/tx pause settings.
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*/
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newadv = 0;
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if (epause->rx_pause)
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newadv = ADVERTISED_Pause | ADVERTISED_Asym_Pause;
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if (epause->tx_pause)
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newadv |= ADVERTISED_Asym_Pause;
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oldadv = phydev->advertising &
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(ADVERTISED_Pause | ADVERTISED_Asym_Pause);
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/* If there are differences between the old and the new advertised
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* values, restart PHY autonegotiation and advertise the new values.
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*/
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if (oldadv != newadv) {
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phydev->advertising &= ~(ADVERTISED_Pause
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| ADVERTISED_Asym_Pause);
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phydev->advertising |= newadv;
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if (phydev->autoneg) {
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err = phy_start_aneg(phydev);
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if (err < 0)
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netdev_err(net_dev, "phy_start_aneg() = %d\n",
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err);
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}
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}
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fman_get_pause_cfg(mac_dev, &rx_pause, &tx_pause);
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err = fman_set_mac_active_pause(mac_dev, rx_pause, tx_pause);
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if (err < 0)
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netdev_err(net_dev, "set_mac_active_pause() = %d\n", err);
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return err;
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}
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static int dpaa_get_sset_count(struct net_device *net_dev, int type)
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{
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unsigned int total_stats, num_stats;
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num_stats = num_online_cpus() + 1;
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total_stats = num_stats * (DPAA_STATS_PERCPU_LEN + DPAA_BPS_NUM) +
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DPAA_STATS_GLOBAL_LEN;
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switch (type) {
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case ETH_SS_STATS:
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return total_stats;
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default:
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return -EOPNOTSUPP;
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}
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}
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static void copy_stats(struct dpaa_percpu_priv *percpu_priv, int num_cpus,
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int crr_cpu, u64 *bp_count, u64 *data)
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{
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int num_values = num_cpus + 1;
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int crr = 0, j;
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/* update current CPU's stats and also add them to the total values */
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data[crr * num_values + crr_cpu] = percpu_priv->in_interrupt;
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data[crr++ * num_values + num_cpus] += percpu_priv->in_interrupt;
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data[crr * num_values + crr_cpu] = percpu_priv->stats.rx_packets;
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data[crr++ * num_values + num_cpus] += percpu_priv->stats.rx_packets;
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data[crr * num_values + crr_cpu] = percpu_priv->stats.tx_packets;
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data[crr++ * num_values + num_cpus] += percpu_priv->stats.tx_packets;
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data[crr * num_values + crr_cpu] = percpu_priv->tx_confirm;
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data[crr++ * num_values + num_cpus] += percpu_priv->tx_confirm;
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data[crr * num_values + crr_cpu] = percpu_priv->tx_frag_skbuffs;
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data[crr++ * num_values + num_cpus] += percpu_priv->tx_frag_skbuffs;
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data[crr * num_values + crr_cpu] = percpu_priv->stats.tx_errors;
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data[crr++ * num_values + num_cpus] += percpu_priv->stats.tx_errors;
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data[crr * num_values + crr_cpu] = percpu_priv->stats.rx_errors;
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data[crr++ * num_values + num_cpus] += percpu_priv->stats.rx_errors;
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for (j = 0; j < DPAA_BPS_NUM; j++) {
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data[crr * num_values + crr_cpu] = bp_count[j];
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data[crr++ * num_values + num_cpus] += bp_count[j];
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}
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}
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static void dpaa_get_ethtool_stats(struct net_device *net_dev,
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struct ethtool_stats *stats, u64 *data)
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{
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u64 bp_count[DPAA_BPS_NUM], cg_time, cg_num;
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struct dpaa_percpu_priv *percpu_priv;
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struct dpaa_rx_errors rx_errors;
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unsigned int num_cpus, offset;
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struct dpaa_ern_cnt ern_cnt;
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struct dpaa_bp *dpaa_bp;
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struct dpaa_priv *priv;
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int total_stats, i, j;
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bool cg_status;
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total_stats = dpaa_get_sset_count(net_dev, ETH_SS_STATS);
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priv = netdev_priv(net_dev);
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num_cpus = num_online_cpus();
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memset(&bp_count, 0, sizeof(bp_count));
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memset(&rx_errors, 0, sizeof(struct dpaa_rx_errors));
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memset(&ern_cnt, 0, sizeof(struct dpaa_ern_cnt));
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memset(data, 0, total_stats * sizeof(u64));
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for_each_online_cpu(i) {
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percpu_priv = per_cpu_ptr(priv->percpu_priv, i);
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for (j = 0; j < DPAA_BPS_NUM; j++) {
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dpaa_bp = priv->dpaa_bps[j];
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if (!dpaa_bp->percpu_count)
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continue;
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bp_count[j] = *(per_cpu_ptr(dpaa_bp->percpu_count, i));
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}
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rx_errors.dme += percpu_priv->rx_errors.dme;
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rx_errors.fpe += percpu_priv->rx_errors.fpe;
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rx_errors.fse += percpu_priv->rx_errors.fse;
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rx_errors.phe += percpu_priv->rx_errors.phe;
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ern_cnt.cg_tdrop += percpu_priv->ern_cnt.cg_tdrop;
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ern_cnt.wred += percpu_priv->ern_cnt.wred;
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ern_cnt.err_cond += percpu_priv->ern_cnt.err_cond;
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ern_cnt.early_window += percpu_priv->ern_cnt.early_window;
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ern_cnt.late_window += percpu_priv->ern_cnt.late_window;
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ern_cnt.fq_tdrop += percpu_priv->ern_cnt.fq_tdrop;
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ern_cnt.fq_retired += percpu_priv->ern_cnt.fq_retired;
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ern_cnt.orp_zero += percpu_priv->ern_cnt.orp_zero;
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copy_stats(percpu_priv, num_cpus, i, bp_count, data);
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}
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offset = (num_cpus + 1) * (DPAA_STATS_PERCPU_LEN + DPAA_BPS_NUM);
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memcpy(data + offset, &rx_errors, sizeof(struct dpaa_rx_errors));
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offset += sizeof(struct dpaa_rx_errors) / sizeof(u64);
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memcpy(data + offset, &ern_cnt, sizeof(struct dpaa_ern_cnt));
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/* gather congestion related counters */
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cg_num = 0;
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cg_status = 0;
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cg_time = jiffies_to_msecs(priv->cgr_data.congested_jiffies);
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if (qman_query_cgr_congested(&priv->cgr_data.cgr, &cg_status) == 0) {
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cg_num = priv->cgr_data.cgr_congested_count;
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/* reset congestion stats (like QMan API does */
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priv->cgr_data.congested_jiffies = 0;
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priv->cgr_data.cgr_congested_count = 0;
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}
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offset += sizeof(struct dpaa_ern_cnt) / sizeof(u64);
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data[offset++] = cg_time;
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data[offset++] = cg_num;
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data[offset++] = cg_status;
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}
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static void dpaa_get_strings(struct net_device *net_dev, u32 stringset,
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u8 *data)
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{
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unsigned int i, j, num_cpus, size;
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char string_cpu[ETH_GSTRING_LEN];
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u8 *strings;
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memset(string_cpu, 0, sizeof(string_cpu));
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strings = data;
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num_cpus = num_online_cpus();
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size = DPAA_STATS_GLOBAL_LEN * ETH_GSTRING_LEN;
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for (i = 0; i < DPAA_STATS_PERCPU_LEN; i++) {
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for (j = 0; j < num_cpus; j++) {
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snprintf(string_cpu, ETH_GSTRING_LEN, "%s [CPU %d]",
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dpaa_stats_percpu[i], j);
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memcpy(strings, string_cpu, ETH_GSTRING_LEN);
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strings += ETH_GSTRING_LEN;
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}
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snprintf(string_cpu, ETH_GSTRING_LEN, "%s [TOTAL]",
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dpaa_stats_percpu[i]);
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memcpy(strings, string_cpu, ETH_GSTRING_LEN);
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strings += ETH_GSTRING_LEN;
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}
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for (i = 0; i < DPAA_BPS_NUM; i++) {
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for (j = 0; j < num_cpus; j++) {
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snprintf(string_cpu, ETH_GSTRING_LEN,
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"bpool %c [CPU %d]", 'a' + i, j);
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memcpy(strings, string_cpu, ETH_GSTRING_LEN);
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strings += ETH_GSTRING_LEN;
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}
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snprintf(string_cpu, ETH_GSTRING_LEN, "bpool %c [TOTAL]",
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'a' + i);
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memcpy(strings, string_cpu, ETH_GSTRING_LEN);
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strings += ETH_GSTRING_LEN;
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}
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memcpy(strings, dpaa_stats_global, size);
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}
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const struct ethtool_ops dpaa_ethtool_ops = {
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.get_drvinfo = dpaa_get_drvinfo,
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.get_msglevel = dpaa_get_msglevel,
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.set_msglevel = dpaa_set_msglevel,
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.nway_reset = dpaa_nway_reset,
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.get_pauseparam = dpaa_get_pauseparam,
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.set_pauseparam = dpaa_set_pauseparam,
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.get_link = ethtool_op_get_link,
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.get_sset_count = dpaa_get_sset_count,
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.get_ethtool_stats = dpaa_get_ethtool_stats,
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.get_strings = dpaa_get_strings,
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.get_link_ksettings = dpaa_get_link_ksettings,
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.set_link_ksettings = dpaa_set_link_ksettings,
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};
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