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// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2015 - 2023 Beijing WangXun Technology Co., Ltd. */
#include <linux/pci.h>
#include <linux/phy.h>
#include <linux/ethtool.h>
#include "wx_type.h"
#include "wx_ethtool.h"
#include "wx_hw.h"
struct wx_stats {
char stat_string[ETH_GSTRING_LEN];
size_t sizeof_stat;
off_t stat_offset;
};
#define WX_STAT(str, m) { \
.stat_string = str, \
.sizeof_stat = sizeof(((struct wx *)0)->m), \
.stat_offset = offsetof(struct wx, m) }
static const struct wx_stats wx_gstrings_stats[] = {
WX_STAT("rx_dma_pkts", stats.gprc),
WX_STAT("tx_dma_pkts", stats.gptc),
WX_STAT("rx_dma_bytes", stats.gorc),
WX_STAT("tx_dma_bytes", stats.gotc),
WX_STAT("rx_total_pkts", stats.tpr),
WX_STAT("tx_total_pkts", stats.tpt),
WX_STAT("rx_long_length_count", stats.roc),
WX_STAT("rx_short_length_count", stats.ruc),
WX_STAT("os2bmc_rx_by_bmc", stats.o2bgptc),
WX_STAT("os2bmc_tx_by_bmc", stats.b2ospc),
WX_STAT("os2bmc_tx_by_host", stats.o2bspc),
WX_STAT("os2bmc_rx_by_host", stats.b2ogprc),
WX_STAT("rx_no_dma_resources", stats.rdmdrop),
WX_STAT("tx_busy", tx_busy),
WX_STAT("non_eop_descs", non_eop_descs),
WX_STAT("tx_restart_queue", restart_queue),
WX_STAT("rx_csum_offload_good_count", hw_csum_rx_good),
WX_STAT("rx_csum_offload_errors", hw_csum_rx_error),
WX_STAT("alloc_rx_buff_failed", alloc_rx_buff_failed),
};
/* drivers allocates num_tx_queues and num_rx_queues symmetrically so
* we set the num_rx_queues to evaluate to num_tx_queues. This is
* used because we do not have a good way to get the max number of
* rx queues with CONFIG_RPS disabled.
*/
#define WX_NUM_RX_QUEUES netdev->num_tx_queues
#define WX_NUM_TX_QUEUES netdev->num_tx_queues
#define WX_QUEUE_STATS_LEN ( \
(WX_NUM_TX_QUEUES + WX_NUM_RX_QUEUES) * \
(sizeof(struct wx_queue_stats) / sizeof(u64)))
#define WX_GLOBAL_STATS_LEN ARRAY_SIZE(wx_gstrings_stats)
#define WX_STATS_LEN (WX_GLOBAL_STATS_LEN + WX_QUEUE_STATS_LEN)
int wx_get_sset_count(struct net_device *netdev, int sset)
{
switch (sset) {
case ETH_SS_STATS:
return WX_STATS_LEN;
default:
return -EOPNOTSUPP;
}
}
EXPORT_SYMBOL(wx_get_sset_count);
void wx_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
{
u8 *p = data;
int i;
switch (stringset) {
case ETH_SS_STATS:
for (i = 0; i < WX_GLOBAL_STATS_LEN; i++)
ethtool_sprintf(&p, wx_gstrings_stats[i].stat_string);
for (i = 0; i < netdev->num_tx_queues; i++) {
ethtool_sprintf(&p, "tx_queue_%u_packets", i);
ethtool_sprintf(&p, "tx_queue_%u_bytes", i);
}
for (i = 0; i < WX_NUM_RX_QUEUES; i++) {
ethtool_sprintf(&p, "rx_queue_%u_packets", i);
ethtool_sprintf(&p, "rx_queue_%u_bytes", i);
}
break;
}
}
EXPORT_SYMBOL(wx_get_strings);
void wx_get_ethtool_stats(struct net_device *netdev,
struct ethtool_stats *stats, u64 *data)
{
struct wx *wx = netdev_priv(netdev);
struct wx_ring *ring;
unsigned int start;
int i, j;
char *p;
wx_update_stats(wx);
for (i = 0; i < WX_GLOBAL_STATS_LEN; i++) {
p = (char *)wx + wx_gstrings_stats[i].stat_offset;
data[i] = (wx_gstrings_stats[i].sizeof_stat ==
sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
}
for (j = 0; j < netdev->num_tx_queues; j++) {
ring = wx->tx_ring[j];
if (!ring) {
data[i++] = 0;
data[i++] = 0;
continue;
}
do {
start = u64_stats_fetch_begin(&ring->syncp);
data[i] = ring->stats.packets;
data[i + 1] = ring->stats.bytes;
} while (u64_stats_fetch_retry(&ring->syncp, start));
i += 2;
}
for (j = 0; j < WX_NUM_RX_QUEUES; j++) {
ring = wx->rx_ring[j];
if (!ring) {
data[i++] = 0;
data[i++] = 0;
continue;
}
do {
start = u64_stats_fetch_begin(&ring->syncp);
data[i] = ring->stats.packets;
data[i + 1] = ring->stats.bytes;
} while (u64_stats_fetch_retry(&ring->syncp, start));
i += 2;
}
}
EXPORT_SYMBOL(wx_get_ethtool_stats);
void wx_get_mac_stats(struct net_device *netdev,
struct ethtool_eth_mac_stats *mac_stats)
{
struct wx *wx = netdev_priv(netdev);
struct wx_hw_stats *hwstats;
wx_update_stats(wx);
hwstats = &wx->stats;
mac_stats->MulticastFramesXmittedOK = hwstats->mptc;
mac_stats->BroadcastFramesXmittedOK = hwstats->bptc;
mac_stats->MulticastFramesReceivedOK = hwstats->mprc;
mac_stats->BroadcastFramesReceivedOK = hwstats->bprc;
}
EXPORT_SYMBOL(wx_get_mac_stats);
void wx_get_pause_stats(struct net_device *netdev,
struct ethtool_pause_stats *stats)
{
struct wx *wx = netdev_priv(netdev);
struct wx_hw_stats *hwstats;
wx_update_stats(wx);
hwstats = &wx->stats;
stats->tx_pause_frames = hwstats->lxontxc + hwstats->lxofftxc;
stats->rx_pause_frames = hwstats->lxonoffrxc;
}
EXPORT_SYMBOL(wx_get_pause_stats);
void wx_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *info)
{
struct wx *wx = netdev_priv(netdev);
strscpy(info->driver, wx->driver_name, sizeof(info->driver));
strscpy(info->fw_version, wx->eeprom_id, sizeof(info->fw_version));
strscpy(info->bus_info, pci_name(wx->pdev), sizeof(info->bus_info));
if (wx->num_tx_queues <= WX_NUM_TX_QUEUES) {
info->n_stats = WX_STATS_LEN -
(WX_NUM_TX_QUEUES - wx->num_tx_queues) *
(sizeof(struct wx_queue_stats) / sizeof(u64)) * 2;
} else {
info->n_stats = WX_STATS_LEN;
}
}
EXPORT_SYMBOL(wx_get_drvinfo);
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