net: hns3: Add Ethtool support to HNS3 driver
This patch adds the support of the Ethtool interface to the HNS3 Ethernet driver. Various commands to read the statistics, configure the offloading, loopback selftest etc. are supported. Signed-off-by: Daode Huang <huangdaode@hisilicon.com> Signed-off-by: lipeng <lipeng321@huawei.com> Signed-off-by: Salil Mehta <salil.mehta@huawei.com> Signed-off-by: Yisen Zhuang <yisen.zhuang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Salil
David S. Miller
Родитель
256727da73
Коммит
496d03e960
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@ -0,0 +1,482 @@
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/*
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* Copyright (c) 2016~2017 Hisilicon Limited.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <linux/etherdevice.h>
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#include <linux/string.h>
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#include "hns3_enet.h"
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struct hns3_stats {
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char stats_string[ETH_GSTRING_LEN];
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int stats_size;
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int stats_offset;
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};
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/* tqp related stats */
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#define HNS3_TQP_STAT(_string, _member) { \
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.stats_string = _string, \
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.stats_size = FIELD_SIZEOF(struct ring_stats, _member), \
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.stats_offset = offsetof(struct hns3_enet_ring, stats), \
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} \
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static const struct hns3_stats hns3_txq_stats[] = {
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/* Tx per-queue statistics */
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HNS3_TQP_STAT("tx_io_err_cnt", io_err_cnt),
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HNS3_TQP_STAT("tx_sw_err_cnt", sw_err_cnt),
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HNS3_TQP_STAT("tx_seg_pkt_cnt", seg_pkt_cnt),
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HNS3_TQP_STAT("tx_pkts", tx_pkts),
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HNS3_TQP_STAT("tx_bytes", tx_bytes),
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HNS3_TQP_STAT("tx_err_cnt", tx_err_cnt),
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HNS3_TQP_STAT("tx_restart_queue", restart_queue),
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HNS3_TQP_STAT("tx_busy", tx_busy),
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};
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#define HNS3_TXQ_STATS_COUNT ARRAY_SIZE(hns3_txq_stats)
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static const struct hns3_stats hns3_rxq_stats[] = {
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/* Rx per-queue statistics */
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HNS3_TQP_STAT("rx_io_err_cnt", io_err_cnt),
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HNS3_TQP_STAT("rx_sw_err_cnt", sw_err_cnt),
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HNS3_TQP_STAT("rx_seg_pkt_cnt", seg_pkt_cnt),
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HNS3_TQP_STAT("rx_pkts", rx_pkts),
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HNS3_TQP_STAT("rx_bytes", rx_bytes),
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HNS3_TQP_STAT("rx_err_cnt", rx_err_cnt),
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HNS3_TQP_STAT("rx_reuse_pg_cnt", reuse_pg_cnt),
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HNS3_TQP_STAT("rx_err_pkt_len", err_pkt_len),
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HNS3_TQP_STAT("rx_non_vld_descs", non_vld_descs),
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HNS3_TQP_STAT("rx_err_bd_num", err_bd_num),
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HNS3_TQP_STAT("rx_l2_err", l2_err),
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HNS3_TQP_STAT("rx_l3l4_csum_err", l3l4_csum_err),
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};
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#define HNS3_RXQ_STATS_COUNT ARRAY_SIZE(hns3_rxq_stats)
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#define HNS3_TQP_STATS_COUNT (HNS3_TXQ_STATS_COUNT + HNS3_RXQ_STATS_COUNT)
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struct hns3_link_mode_mapping {
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u32 hns3_link_mode;
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u32 ethtool_link_mode;
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};
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static const struct hns3_link_mode_mapping hns3_lm_map[] = {
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{HNS3_LM_FIBRE_BIT, ETHTOOL_LINK_MODE_FIBRE_BIT},
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{HNS3_LM_AUTONEG_BIT, ETHTOOL_LINK_MODE_Autoneg_BIT},
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{HNS3_LM_TP_BIT, ETHTOOL_LINK_MODE_TP_BIT},
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{HNS3_LM_PAUSE_BIT, ETHTOOL_LINK_MODE_Pause_BIT},
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{HNS3_LM_BACKPLANE_BIT, ETHTOOL_LINK_MODE_Backplane_BIT},
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{HNS3_LM_10BASET_HALF_BIT, ETHTOOL_LINK_MODE_10baseT_Half_BIT},
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{HNS3_LM_10BASET_FULL_BIT, ETHTOOL_LINK_MODE_10baseT_Full_BIT},
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{HNS3_LM_100BASET_HALF_BIT, ETHTOOL_LINK_MODE_100baseT_Half_BIT},
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{HNS3_LM_100BASET_FULL_BIT, ETHTOOL_LINK_MODE_100baseT_Full_BIT},
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{HNS3_LM_1000BASET_FULL_BIT, ETHTOOL_LINK_MODE_1000baseT_Full_BIT},
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};
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static void hns3_driv_to_eth_caps(u32 caps, struct ethtool_link_ksettings *cmd,
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bool is_advertised)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(hns3_lm_map); i++) {
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if (!(caps & hns3_lm_map[i].hns3_link_mode))
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continue;
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if (is_advertised) {
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ethtool_link_ksettings_zero_link_mode(cmd,
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advertising);
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__set_bit(hns3_lm_map[i].ethtool_link_mode,
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cmd->link_modes.advertising);
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} else {
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ethtool_link_ksettings_zero_link_mode(cmd,
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supported);
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__set_bit(hns3_lm_map[i].ethtool_link_mode,
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cmd->link_modes.supported);
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}
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}
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}
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static int hns3_get_sset_count(struct net_device *netdev, int stringset)
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{
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struct hns3_nic_priv *priv = netdev_priv(netdev);
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struct hnae3_handle *h = priv->ae_handle;
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const struct hnae3_ae_ops *ops = h->ae_algo->ops;
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if (!ops->get_sset_count)
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return -EOPNOTSUPP;
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switch (stringset) {
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case ETH_SS_STATS:
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return ((HNS3_TQP_STATS_COUNT * h->kinfo.num_tqps) +
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ops->get_sset_count(h, stringset));
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case ETH_SS_TEST:
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return ops->get_sset_count(h, stringset);
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}
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return 0;
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}
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static void *hns3_update_strings(u8 *data, const struct hns3_stats *stats,
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u32 stat_count, u32 num_tqps)
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{
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#define MAX_PREFIX_SIZE (8 + 4)
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u32 size_left;
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u32 i, j;
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u32 n1;
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for (i = 0; i < num_tqps; i++) {
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for (j = 0; j < stat_count; j++) {
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data[ETH_GSTRING_LEN - 1] = '\0';
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/* first, prepend the prefix string */
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n1 = snprintf(data, MAX_PREFIX_SIZE, "rcb_q%d_", i);
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n1 = min_t(uint, n1, MAX_PREFIX_SIZE - 1);
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size_left = (ETH_GSTRING_LEN - 1) - n1;
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/* now, concatenate the stats string to it */
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strncat(data, stats[j].stats_string, size_left);
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data += ETH_GSTRING_LEN;
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}
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}
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return data;
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}
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static u8 *hns3_get_strings_tqps(struct hnae3_handle *handle, u8 *data)
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{
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struct hnae3_knic_private_info *kinfo = &handle->kinfo;
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/* get strings for Tx */
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data = hns3_update_strings(data, hns3_txq_stats, HNS3_TXQ_STATS_COUNT,
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kinfo->num_tqps);
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/* get strings for Rx */
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data = hns3_update_strings(data, hns3_rxq_stats, HNS3_RXQ_STATS_COUNT,
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kinfo->num_tqps);
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return data;
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}
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static void hns3_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
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{
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struct hns3_nic_priv *priv = netdev_priv(netdev);
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struct hnae3_handle *h = priv->ae_handle;
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const struct hnae3_ae_ops *ops = h->ae_algo->ops;
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char *buff = (char *)data;
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if (!ops->get_strings)
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return;
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switch (stringset) {
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case ETH_SS_STATS:
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buff = hns3_get_strings_tqps(h, buff);
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h->ae_algo->ops->get_strings(h, stringset, (u8 *)buff);
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break;
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case ETH_SS_TEST:
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ops->get_strings(h, stringset, data);
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break;
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}
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}
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static u64 *hns3_get_stats_tqps(struct hnae3_handle *handle, u64 *data)
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{
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struct hns3_nic_priv *nic_priv = (struct hns3_nic_priv *)handle->priv;
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struct hnae3_knic_private_info *kinfo = &handle->kinfo;
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struct hns3_enet_ring *ring;
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u8 *stat;
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u32 i;
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/* get stats for Tx */
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for (i = 0; i < kinfo->num_tqps; i++) {
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ring = nic_priv->ring_data[i].ring;
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for (i = 0; i < HNS3_TXQ_STATS_COUNT; i++) {
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stat = (u8 *)ring + hns3_txq_stats[i].stats_offset;
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*data++ = *(u64 *)stat;
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}
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}
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/* get stats for Rx */
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for (i = 0; i < kinfo->num_tqps; i++) {
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ring = nic_priv->ring_data[i + kinfo->num_tqps].ring;
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for (i = 0; i < HNS3_RXQ_STATS_COUNT; i++) {
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stat = (u8 *)ring + hns3_rxq_stats[i].stats_offset;
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*data++ = *(u64 *)stat;
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}
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}
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return data;
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}
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/* hns3_get_stats - get detail statistics.
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* @netdev: net device
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* @stats: statistics info.
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* @data: statistics data.
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*/
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void hns3_get_stats(struct net_device *netdev, struct ethtool_stats *stats,
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u64 *data)
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{
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struct hns3_nic_priv *priv = netdev_priv(netdev);
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struct hnae3_handle *h = priv->ae_handle;
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u64 *p = data;
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if (!h->ae_algo->ops->get_stats || !h->ae_algo->ops->update_stats) {
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netdev_err(netdev, "could not get any statistics\n");
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return;
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}
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h->ae_algo->ops->update_stats(h, &netdev->stats);
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/* get per-queue stats */
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p = hns3_get_stats_tqps(h, p);
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/* get MAC & other misc hardware stats */
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h->ae_algo->ops->get_stats(h, p);
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}
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static void hns3_get_drvinfo(struct net_device *netdev,
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struct ethtool_drvinfo *drvinfo)
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{
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struct hns3_nic_priv *priv = netdev_priv(netdev);
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struct hnae3_handle *h = priv->ae_handle;
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strncpy(drvinfo->version, hns3_driver_version,
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sizeof(drvinfo->version));
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drvinfo->version[sizeof(drvinfo->version) - 1] = '\0';
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strncpy(drvinfo->driver, h->pdev->driver->name,
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sizeof(drvinfo->driver));
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drvinfo->driver[sizeof(drvinfo->driver) - 1] = '\0';
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strncpy(drvinfo->bus_info, pci_name(h->pdev),
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sizeof(drvinfo->bus_info));
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drvinfo->bus_info[ETHTOOL_BUSINFO_LEN - 1] = '\0';
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snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), "0x%08x",
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priv->ae_handle->ae_algo->ops->get_fw_version(h));
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}
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static u32 hns3_get_link(struct net_device *netdev)
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{
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struct hns3_nic_priv *priv = netdev_priv(netdev);
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struct hnae3_handle *h;
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h = priv->ae_handle;
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if (h->ae_algo && h->ae_algo->ops && h->ae_algo->ops->get_status)
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return h->ae_algo->ops->get_status(h);
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else
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return 0;
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}
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static void hns3_get_ringparam(struct net_device *netdev,
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struct ethtool_ringparam *param)
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{
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struct hns3_nic_priv *priv = netdev_priv(netdev);
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int queue_num = priv->ae_handle->kinfo.num_tqps;
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param->tx_max_pending = HNS3_RING_MAX_PENDING;
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param->rx_max_pending = HNS3_RING_MAX_PENDING;
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param->tx_pending = priv->ring_data[0].ring->desc_num;
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param->rx_pending = priv->ring_data[queue_num].ring->desc_num;
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}
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static void hns3_get_pauseparam(struct net_device *netdev,
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struct ethtool_pauseparam *param)
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{
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struct hns3_nic_priv *priv = netdev_priv(netdev);
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struct hnae3_handle *h = priv->ae_handle;
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if (h->ae_algo && h->ae_algo->ops && h->ae_algo->ops->get_pauseparam)
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h->ae_algo->ops->get_pauseparam(h, ¶m->autoneg,
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¶m->rx_pause, ¶m->tx_pause);
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}
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static int hns3_get_link_ksettings(struct net_device *netdev,
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struct ethtool_link_ksettings *cmd)
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{
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struct hns3_nic_priv *priv = netdev_priv(netdev);
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struct hnae3_handle *h = priv->ae_handle;
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u32 supported_caps;
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u32 advertised_caps;
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u8 media_type;
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u8 link_stat;
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u8 auto_neg;
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u8 duplex;
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u32 speed;
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if (!h->ae_algo || !h->ae_algo->ops)
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return -EOPNOTSUPP;
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/* 1.auto_neg&speed&duplex from cmd */
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if (h->ae_algo->ops->get_ksettings_an_result) {
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h->ae_algo->ops->get_ksettings_an_result(h, &auto_neg,
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&speed, &duplex);
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cmd->base.autoneg = auto_neg;
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cmd->base.speed = speed;
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cmd->base.duplex = duplex;
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link_stat = hns3_get_link(netdev);
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if (!link_stat) {
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cmd->base.speed = (u32)SPEED_UNKNOWN;
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cmd->base.duplex = DUPLEX_UNKNOWN;
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}
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}
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/* 2.media_type get from bios parameter block */
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if (h->ae_algo->ops->get_media_type)
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h->ae_algo->ops->get_media_type(h, &media_type);
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switch (media_type) {
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case HNAE3_MEDIA_TYPE_FIBER:
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cmd->base.port = PORT_FIBRE;
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supported_caps = HNS3_LM_FIBRE_BIT | HNS3_LM_AUTONEG_BIT |
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HNS3_LM_PAUSE_BIT | HNS3_LM_1000BASET_FULL_BIT;
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advertised_caps = supported_caps;
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break;
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case HNAE3_MEDIA_TYPE_COPPER:
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cmd->base.port = PORT_TP;
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supported_caps = HNS3_LM_TP_BIT | HNS3_LM_AUTONEG_BIT |
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HNS3_LM_PAUSE_BIT | HNS3_LM_1000BASET_FULL_BIT |
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HNS3_LM_100BASET_FULL_BIT | HNS3_LM_100BASET_HALF_BIT |
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HNS3_LM_10BASET_FULL_BIT | HNS3_LM_10BASET_HALF_BIT;
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advertised_caps = supported_caps;
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break;
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case HNAE3_MEDIA_TYPE_BACKPLANE:
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cmd->base.port = PORT_NONE;
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supported_caps = HNS3_LM_BACKPLANE_BIT | HNS3_LM_PAUSE_BIT |
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HNS3_LM_AUTONEG_BIT | HNS3_LM_1000BASET_FULL_BIT |
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HNS3_LM_100BASET_FULL_BIT | HNS3_LM_100BASET_HALF_BIT |
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HNS3_LM_10BASET_FULL_BIT | HNS3_LM_10BASET_HALF_BIT;
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advertised_caps = supported_caps;
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break;
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case HNAE3_MEDIA_TYPE_UNKNOWN:
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default:
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cmd->base.port = PORT_OTHER;
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supported_caps = 0;
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advertised_caps = 0;
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break;
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}
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/* now, map driver link modes to ethtool link modes */
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hns3_driv_to_eth_caps(supported_caps, cmd, false);
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hns3_driv_to_eth_caps(advertised_caps, cmd, true);
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/* 3.mdix_ctrl&mdix get from phy reg */
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if (h->ae_algo->ops->get_mdix_mode)
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h->ae_algo->ops->get_mdix_mode(h, &cmd->base.eth_tp_mdix_ctrl,
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&cmd->base.eth_tp_mdix);
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/* 4.mdio_support */
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cmd->base.mdio_support = ETH_MDIO_SUPPORTS_C22;
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return 0;
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}
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static u32 hns3_get_rss_key_size(struct net_device *netdev)
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{
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struct hns3_nic_priv *priv = netdev_priv(netdev);
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struct hnae3_handle *h = priv->ae_handle;
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if (!h->ae_algo || !h->ae_algo->ops ||
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!h->ae_algo->ops->get_rss_key_size)
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return -EOPNOTSUPP;
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return h->ae_algo->ops->get_rss_key_size(h);
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}
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static u32 hns3_get_rss_indir_size(struct net_device *netdev)
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{
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struct hns3_nic_priv *priv = netdev_priv(netdev);
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struct hnae3_handle *h = priv->ae_handle;
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if (!h->ae_algo || !h->ae_algo->ops ||
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!h->ae_algo->ops->get_rss_indir_size)
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return -EOPNOTSUPP;
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||||
return h->ae_algo->ops->get_rss_indir_size(h);
|
||||
}
|
||||
|
||||
static int hns3_get_rss(struct net_device *netdev, u32 *indir, u8 *key,
|
||||
u8 *hfunc)
|
||||
{
|
||||
struct hns3_nic_priv *priv = netdev_priv(netdev);
|
||||
struct hnae3_handle *h = priv->ae_handle;
|
||||
|
||||
if (!h->ae_algo || !h->ae_algo->ops || !h->ae_algo->ops->get_rss)
|
||||
return -EOPNOTSUPP;
|
||||
|
||||
return h->ae_algo->ops->get_rss(h, indir, key, hfunc);
|
||||
}
|
||||
|
||||
static int hns3_set_rss(struct net_device *netdev, const u32 *indir,
|
||||
const u8 *key, const u8 hfunc)
|
||||
{
|
||||
struct hns3_nic_priv *priv = netdev_priv(netdev);
|
||||
struct hnae3_handle *h = priv->ae_handle;
|
||||
|
||||
if (!h->ae_algo || !h->ae_algo->ops || !h->ae_algo->ops->set_rss)
|
||||
return -EOPNOTSUPP;
|
||||
|
||||
/* currently we only support Toeplitz hash */
|
||||
if ((hfunc != ETH_RSS_HASH_NO_CHANGE) && (hfunc != ETH_RSS_HASH_TOP)) {
|
||||
netdev_err(netdev,
|
||||
"hash func not supported (only Toeplitz hash)\n");
|
||||
return -EOPNOTSUPP;
|
||||
}
|
||||
if (!indir) {
|
||||
netdev_err(netdev,
|
||||
"set rss failed for indir is empty\n");
|
||||
return -EOPNOTSUPP;
|
||||
}
|
||||
|
||||
return h->ae_algo->ops->set_rss(h, indir, key, hfunc);
|
||||
}
|
||||
|
||||
static int hns3_get_rxnfc(struct net_device *netdev,
|
||||
struct ethtool_rxnfc *cmd,
|
||||
u32 *rule_locs)
|
||||
{
|
||||
struct hns3_nic_priv *priv = netdev_priv(netdev);
|
||||
struct hnae3_handle *h = priv->ae_handle;
|
||||
|
||||
if (!h->ae_algo || !h->ae_algo->ops || !h->ae_algo->ops->get_tc_size)
|
||||
return -EOPNOTSUPP;
|
||||
|
||||
switch (cmd->cmd) {
|
||||
case ETHTOOL_GRXRINGS:
|
||||
cmd->data = h->ae_algo->ops->get_tc_size(h);
|
||||
break;
|
||||
default:
|
||||
return -EOPNOTSUPP;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct ethtool_ops hns3_ethtool_ops = {
|
||||
.get_drvinfo = hns3_get_drvinfo,
|
||||
.get_link = hns3_get_link,
|
||||
.get_ringparam = hns3_get_ringparam,
|
||||
.get_pauseparam = hns3_get_pauseparam,
|
||||
.get_strings = hns3_get_strings,
|
||||
.get_ethtool_stats = hns3_get_stats,
|
||||
.get_sset_count = hns3_get_sset_count,
|
||||
.get_rxnfc = hns3_get_rxnfc,
|
||||
.get_rxfh_key_size = hns3_get_rss_key_size,
|
||||
.get_rxfh_indir_size = hns3_get_rss_indir_size,
|
||||
.get_rxfh = hns3_get_rss,
|
||||
.set_rxfh = hns3_set_rss,
|
||||
.get_link_ksettings = hns3_get_link_ksettings,
|
||||
};
|
||||
|
||||
void hns3_ethtool_set_ops(struct net_device *netdev)
|
||||
{
|
||||
netdev->ethtool_ops = &hns3_ethtool_ops;
|
||||
}
|
||||
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