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385 lines
10 KiB
C
385 lines
10 KiB
C
/*
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* Copyright (c) 2015 - 2016, The Linux Foundation. All rights reserved.
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*
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* Permission to use, copy, modify, and/or distribute this software for
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* any purpose with or without fee is hereby granted, provided that the
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* above copyright notice and this permission notice appear in all copies.
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <linux/ethtool.h>
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#include <linux/netdevice.h>
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#include <linux/string.h>
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#include "edma.h"
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struct edma_ethtool_stats {
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uint8_t stat_string[ETH_GSTRING_LEN];
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uint32_t stat_offset;
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};
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#define EDMA_STAT(m) offsetof(struct edma_ethtool_statistics, m)
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#define DRVINFO_LEN 32
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/* Array of strings describing statistics
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*/
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static const struct edma_ethtool_stats edma_gstrings_stats[] = {
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{"tx_q0_pkt", EDMA_STAT(tx_q0_pkt)},
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{"tx_q1_pkt", EDMA_STAT(tx_q1_pkt)},
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{"tx_q2_pkt", EDMA_STAT(tx_q2_pkt)},
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{"tx_q3_pkt", EDMA_STAT(tx_q3_pkt)},
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{"tx_q4_pkt", EDMA_STAT(tx_q4_pkt)},
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{"tx_q5_pkt", EDMA_STAT(tx_q5_pkt)},
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{"tx_q6_pkt", EDMA_STAT(tx_q6_pkt)},
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{"tx_q7_pkt", EDMA_STAT(tx_q7_pkt)},
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{"tx_q8_pkt", EDMA_STAT(tx_q8_pkt)},
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{"tx_q9_pkt", EDMA_STAT(tx_q9_pkt)},
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{"tx_q10_pkt", EDMA_STAT(tx_q10_pkt)},
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{"tx_q11_pkt", EDMA_STAT(tx_q11_pkt)},
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{"tx_q12_pkt", EDMA_STAT(tx_q12_pkt)},
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{"tx_q13_pkt", EDMA_STAT(tx_q13_pkt)},
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{"tx_q14_pkt", EDMA_STAT(tx_q14_pkt)},
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{"tx_q15_pkt", EDMA_STAT(tx_q15_pkt)},
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{"tx_q0_byte", EDMA_STAT(tx_q0_byte)},
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{"tx_q1_byte", EDMA_STAT(tx_q1_byte)},
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{"tx_q2_byte", EDMA_STAT(tx_q2_byte)},
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{"tx_q3_byte", EDMA_STAT(tx_q3_byte)},
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{"tx_q4_byte", EDMA_STAT(tx_q4_byte)},
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{"tx_q5_byte", EDMA_STAT(tx_q5_byte)},
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{"tx_q6_byte", EDMA_STAT(tx_q6_byte)},
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{"tx_q7_byte", EDMA_STAT(tx_q7_byte)},
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{"tx_q8_byte", EDMA_STAT(tx_q8_byte)},
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{"tx_q9_byte", EDMA_STAT(tx_q9_byte)},
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{"tx_q10_byte", EDMA_STAT(tx_q10_byte)},
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{"tx_q11_byte", EDMA_STAT(tx_q11_byte)},
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{"tx_q12_byte", EDMA_STAT(tx_q12_byte)},
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{"tx_q13_byte", EDMA_STAT(tx_q13_byte)},
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{"tx_q14_byte", EDMA_STAT(tx_q14_byte)},
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{"tx_q15_byte", EDMA_STAT(tx_q15_byte)},
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{"rx_q0_pkt", EDMA_STAT(rx_q0_pkt)},
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{"rx_q1_pkt", EDMA_STAT(rx_q1_pkt)},
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{"rx_q2_pkt", EDMA_STAT(rx_q2_pkt)},
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{"rx_q3_pkt", EDMA_STAT(rx_q3_pkt)},
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{"rx_q4_pkt", EDMA_STAT(rx_q4_pkt)},
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{"rx_q5_pkt", EDMA_STAT(rx_q5_pkt)},
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{"rx_q6_pkt", EDMA_STAT(rx_q6_pkt)},
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{"rx_q7_pkt", EDMA_STAT(rx_q7_pkt)},
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{"rx_q0_byte", EDMA_STAT(rx_q0_byte)},
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{"rx_q1_byte", EDMA_STAT(rx_q1_byte)},
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{"rx_q2_byte", EDMA_STAT(rx_q2_byte)},
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{"rx_q3_byte", EDMA_STAT(rx_q3_byte)},
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{"rx_q4_byte", EDMA_STAT(rx_q4_byte)},
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{"rx_q5_byte", EDMA_STAT(rx_q5_byte)},
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{"rx_q6_byte", EDMA_STAT(rx_q6_byte)},
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{"rx_q7_byte", EDMA_STAT(rx_q7_byte)},
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{"tx_desc_error", EDMA_STAT(tx_desc_error)},
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{"rx_alloc_fail_ctr", EDMA_STAT(rx_alloc_fail_ctr)},
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};
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#define EDMA_STATS_LEN ARRAY_SIZE(edma_gstrings_stats)
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/* edma_get_strset_count()
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* Get strset count
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*/
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static int edma_get_strset_count(struct net_device *netdev,
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int sset)
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{
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switch (sset) {
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case ETH_SS_STATS:
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return EDMA_STATS_LEN;
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default:
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netdev_dbg(netdev, "%s: Invalid string set", __func__);
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return -EOPNOTSUPP;
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}
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}
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/* edma_get_strings()
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* get stats string
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*/
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static void edma_get_strings(struct net_device *netdev, uint32_t stringset,
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uint8_t *data)
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{
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uint8_t *p = data;
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uint32_t i;
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switch (stringset) {
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case ETH_SS_STATS:
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for (i = 0; i < EDMA_STATS_LEN; i++) {
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memcpy(p, edma_gstrings_stats[i].stat_string,
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min((size_t)ETH_GSTRING_LEN,
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strlen(edma_gstrings_stats[i].stat_string)
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+ 1));
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p += ETH_GSTRING_LEN;
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}
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break;
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}
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}
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/* edma_get_ethtool_stats()
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* Get ethtool statistics
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*/
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static void edma_get_ethtool_stats(struct net_device *netdev,
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struct ethtool_stats *stats, uint64_t *data)
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{
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struct edma_adapter *adapter = netdev_priv(netdev);
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struct edma_common_info *edma_cinfo = adapter->edma_cinfo;
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int i;
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uint8_t *p = NULL;
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edma_read_append_stats(edma_cinfo);
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for(i = 0; i < EDMA_STATS_LEN; i++) {
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p = (uint8_t *)&(edma_cinfo->edma_ethstats) +
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edma_gstrings_stats[i].stat_offset;
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data[i] = *(uint32_t *)p;
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}
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}
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/* edma_get_drvinfo()
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* get edma driver info
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*/
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static void edma_get_drvinfo(struct net_device *dev,
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struct ethtool_drvinfo *info)
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{
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strlcpy(info->driver, "ess_edma", DRVINFO_LEN);
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strlcpy(info->bus_info, "axi", ETHTOOL_BUSINFO_LEN);
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}
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/* edma_nway_reset()
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* Reset the phy, if available.
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*/
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static int edma_nway_reset(struct net_device *netdev)
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{
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return -EINVAL;
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}
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/* edma_get_wol()
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* get wake on lan info
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*/
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static void edma_get_wol(struct net_device *netdev,
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struct ethtool_wolinfo *wol)
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{
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wol->supported = 0;
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wol->wolopts = 0;
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}
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/* edma_get_msglevel()
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* get message level.
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*/
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static uint32_t edma_get_msglevel(struct net_device *netdev)
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{
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return 0;
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}
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/* edma_get_settings()
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* Get edma settings
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*/
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static int edma_get_settings(struct net_device *netdev,
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struct ethtool_link_ksettings *cmd)
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{
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struct edma_adapter *adapter = netdev_priv(netdev);
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if (adapter->poll_required) {
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struct phy_device *phydev = NULL;
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uint16_t phyreg;
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if ((adapter->forced_speed != SPEED_UNKNOWN)
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&& !(adapter->poll_required))
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return -EPERM;
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phydev = adapter->phydev;
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linkmode_copy(cmd->link_modes.advertising, phydev->advertising);
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linkmode_copy(cmd->link_modes.supported, phydev->supported);
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cmd->base.autoneg = phydev->autoneg;
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if (adapter->link_state == __EDMA_LINKDOWN) {
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cmd->base.speed = SPEED_UNKNOWN;
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cmd->base.duplex = DUPLEX_UNKNOWN;
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} else {
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cmd->base.speed = phydev->speed;
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cmd->base.duplex = phydev->duplex;
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}
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cmd->base.phy_address = adapter->phy_mdio_addr;
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phyreg = (uint16_t)phy_read(adapter->phydev, MII_LPA);
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if (phyreg & LPA_10HALF)
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linkmode_set_bit(ETHTOOL_LINK_MODE_10baseT_Half_BIT,
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cmd->link_modes.lp_advertising);
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if (phyreg & LPA_10FULL)
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linkmode_set_bit(ETHTOOL_LINK_MODE_10baseT_Full_BIT,
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cmd->link_modes.lp_advertising);
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if (phyreg & LPA_100HALF)
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linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Half_BIT,
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cmd->link_modes.lp_advertising);
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if (phyreg & LPA_100FULL)
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linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT,
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cmd->link_modes.lp_advertising);
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phyreg = (uint16_t)phy_read(adapter->phydev, MII_STAT1000);
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if (phyreg & LPA_1000HALF)
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linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Half_BIT,
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cmd->link_modes.lp_advertising);
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if (phyreg & LPA_1000FULL)
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linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
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cmd->link_modes.lp_advertising);
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} else {
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/* If the speed/duplex for this GMAC is forced and we
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* are not polling for link state changes, return the
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* values as specified by platform. This will be true
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* for GMACs connected to switch, and interfaces that
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* do not use a PHY.
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*/
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if (!(adapter->poll_required)) {
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if (adapter->forced_speed != SPEED_UNKNOWN) {
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/* set speed and duplex */
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cmd->base.speed = SPEED_1000;
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cmd->base.duplex = DUPLEX_FULL;
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/* Populate capabilities advertised by self */
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linkmode_zero(cmd->link_modes.advertising);
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cmd->base.autoneg = 0;
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cmd->base.port = PORT_TP;
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cmd->base.transceiver = XCVR_EXTERNAL;
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} else {
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/* non link polled and non
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* forced speed/duplex interface
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*/
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return -EIO;
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}
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}
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}
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return 0;
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}
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/* edma_set_settings()
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* Set EDMA settings
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*/
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static int edma_set_settings(struct net_device *netdev,
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const struct ethtool_link_ksettings *cmd)
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{
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struct edma_adapter *adapter = netdev_priv(netdev);
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struct phy_device *phydev = NULL;
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if ((adapter->forced_speed != SPEED_UNKNOWN) &&
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!adapter->poll_required)
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return -EPERM;
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phydev = adapter->phydev;
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linkmode_copy(phydev->advertising, cmd->link_modes.advertising);
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linkmode_copy(phydev->supported, cmd->link_modes.supported);
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phydev->autoneg = cmd->base.autoneg;
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phydev->speed = cmd->base.speed;
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phydev->duplex = cmd->base.duplex;
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genphy_config_aneg(phydev);
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return 0;
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}
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/* edma_get_coalesce
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* get interrupt mitigation
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*/
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static int edma_get_coalesce(struct net_device *netdev,
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struct ethtool_coalesce *ec)
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{
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u32 reg_val;
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edma_get_tx_rx_coalesce(®_val);
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/* We read the Interrupt Moderation Timer(IMT) register value,
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* use lower 16 bit for rx and higher 16 bit for Tx. We do a
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* left shift by 1, because IMT resolution timer is 2usecs.
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* Hence the value given by the register is multiplied by 2 to
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* get the actual time in usecs.
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*/
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ec->tx_coalesce_usecs = (((reg_val >> 16) & 0xffff) << 1);
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ec->rx_coalesce_usecs = ((reg_val & 0xffff) << 1);
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return 0;
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}
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/* edma_set_coalesce
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* set interrupt mitigation
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*/
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static int edma_set_coalesce(struct net_device *netdev,
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struct ethtool_coalesce *ec)
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{
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if (ec->tx_coalesce_usecs)
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edma_change_tx_coalesce(ec->tx_coalesce_usecs);
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if (ec->rx_coalesce_usecs)
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edma_change_rx_coalesce(ec->rx_coalesce_usecs);
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return 0;
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}
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/* edma_set_priv_flags()
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* Set EDMA private flags
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*/
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static int edma_set_priv_flags(struct net_device *netdev, u32 flags)
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{
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return 0;
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}
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/* edma_get_priv_flags()
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* get edma driver flags
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*/
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static u32 edma_get_priv_flags(struct net_device *netdev)
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{
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return 0;
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}
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/* edma_get_ringparam()
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* get ring size
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*/
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static void edma_get_ringparam(struct net_device *netdev,
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struct ethtool_ringparam *ring)
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{
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struct edma_adapter *adapter = netdev_priv(netdev);
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struct edma_common_info *edma_cinfo = adapter->edma_cinfo;
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ring->tx_max_pending = edma_cinfo->tx_ring_count;
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ring->rx_max_pending = edma_cinfo->rx_ring_count;
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}
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/* Ethtool operations
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*/
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static const struct ethtool_ops edma_ethtool_ops = {
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.get_drvinfo = &edma_get_drvinfo,
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.get_link = ðtool_op_get_link,
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.get_msglevel = &edma_get_msglevel,
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.nway_reset = &edma_nway_reset,
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.get_wol = &edma_get_wol,
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.get_link_ksettings = &edma_get_settings,
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.set_link_ksettings = &edma_set_settings,
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.get_strings = &edma_get_strings,
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.get_sset_count = &edma_get_strset_count,
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.get_ethtool_stats = &edma_get_ethtool_stats,
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.get_coalesce = &edma_get_coalesce,
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.set_coalesce = &edma_set_coalesce,
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.get_priv_flags = edma_get_priv_flags,
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.set_priv_flags = edma_set_priv_flags,
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.get_ringparam = edma_get_ringparam,
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};
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/* edma_set_ethtool_ops
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* Set ethtool operations
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*/
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void edma_set_ethtool_ops(struct net_device *netdev)
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{
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netdev->ethtool_ops = &edma_ethtool_ops;
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}
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