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// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) Meta Platforms, Inc. and affiliates. */
#include <linux/ethtool.h>
#include <linux/netdevice.h>
#include <linux/pci.h>
#include "fbnic.h"
#include "fbnic_netdev.h"
#include "fbnic_tlv.h"
struct fbnic_stat {
u8 string[ETH_GSTRING_LEN];
unsigned int size;
unsigned int offset;
};
#define FBNIC_STAT_FIELDS(type, name, stat) { \
.string = name, \
.size = sizeof_field(struct type, stat), \
.offset = offsetof(struct type, stat), \
}
/* Hardware statistics not captured in rtnl_link_stats */
#define FBNIC_HW_STAT(name, stat) \
FBNIC_STAT_FIELDS(fbnic_hw_stats, name, stat)
static const struct fbnic_stat fbnic_gstrings_hw_stats[] = {
/* RPC */
FBNIC_HW_STAT("rpc_unkn_etype", rpc.unkn_etype),
FBNIC_HW_STAT("rpc_unkn_ext_hdr", rpc.unkn_ext_hdr),
FBNIC_HW_STAT("rpc_ipv4_frag", rpc.ipv4_frag),
FBNIC_HW_STAT("rpc_ipv6_frag", rpc.ipv6_frag),
FBNIC_HW_STAT("rpc_ipv4_esp", rpc.ipv4_esp),
FBNIC_HW_STAT("rpc_ipv6_esp", rpc.ipv6_esp),
FBNIC_HW_STAT("rpc_tcp_opt_err", rpc.tcp_opt_err),
FBNIC_HW_STAT("rpc_out_of_hdr_err", rpc.out_of_hdr_err),
};
#define FBNIC_HW_FIXED_STATS_LEN ARRAY_SIZE(fbnic_gstrings_hw_stats)
#define FBNIC_HW_STATS_LEN FBNIC_HW_FIXED_STATS_LEN
static int
fbnic_get_ts_info(struct net_device *netdev,
struct kernel_ethtool_ts_info *tsinfo)
{
struct fbnic_net *fbn = netdev_priv(netdev);
tsinfo->phc_index = ptp_clock_index(fbn->fbd->ptp);
tsinfo->so_timestamping =
SOF_TIMESTAMPING_TX_SOFTWARE |
SOF_TIMESTAMPING_TX_HARDWARE |
SOF_TIMESTAMPING_RX_HARDWARE |
SOF_TIMESTAMPING_RAW_HARDWARE;
tsinfo->tx_types =
BIT(HWTSTAMP_TX_OFF) |
BIT(HWTSTAMP_TX_ON);
tsinfo->rx_filters =
BIT(HWTSTAMP_FILTER_NONE) |
BIT(HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
BIT(HWTSTAMP_FILTER_ALL);
return 0;
}
static void
fbnic_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
{
struct fbnic_net *fbn = netdev_priv(netdev);
struct fbnic_dev *fbd = fbn->fbd;
fbnic_get_fw_ver_commit_str(fbd, drvinfo->fw_version,
sizeof(drvinfo->fw_version));
}
static void fbnic_set_counter(u64 *stat, struct fbnic_stat_counter *counter)
{
if (counter->reported)
*stat = counter->value;
}
static void fbnic_get_strings(struct net_device *dev, u32 sset, u8 *data)
{
int i;
switch (sset) {
case ETH_SS_STATS:
for (i = 0; i < FBNIC_HW_STATS_LEN; i++)
ethtool_puts(&data, fbnic_gstrings_hw_stats[i].string);
break;
}
}
static int fbnic_get_sset_count(struct net_device *dev, int sset)
{
switch (sset) {
case ETH_SS_STATS:
return FBNIC_HW_STATS_LEN;
default:
return -EOPNOTSUPP;
}
}
static void fbnic_get_ethtool_stats(struct net_device *dev,
struct ethtool_stats *stats, u64 *data)
{
struct fbnic_net *fbn = netdev_priv(dev);
const struct fbnic_stat *stat;
int i;
fbnic_get_hw_stats(fbn->fbd);
for (i = 0; i < FBNIC_HW_STATS_LEN; i++) {
stat = &fbnic_gstrings_hw_stats[i];
data[i] = *(u64 *)((u8 *)&fbn->fbd->hw_stats + stat->offset);
}
}
static void
fbnic_get_eth_mac_stats(struct net_device *netdev,
struct ethtool_eth_mac_stats *eth_mac_stats)
{
struct fbnic_net *fbn = netdev_priv(netdev);
struct fbnic_mac_stats *mac_stats;
struct fbnic_dev *fbd = fbn->fbd;
const struct fbnic_mac *mac;
mac_stats = &fbd->hw_stats.mac;
mac = fbd->mac;
mac->get_eth_mac_stats(fbd, false, &mac_stats->eth_mac);
fbnic_set_counter(ð_mac_stats->FramesTransmittedOK,
&mac_stats->eth_mac.FramesTransmittedOK);
fbnic_set_counter(ð_mac_stats->FramesReceivedOK,
&mac_stats->eth_mac.FramesReceivedOK);
fbnic_set_counter(ð_mac_stats->FrameCheckSequenceErrors,
&mac_stats->eth_mac.FrameCheckSequenceErrors);
fbnic_set_counter(ð_mac_stats->AlignmentErrors,
&mac_stats->eth_mac.AlignmentErrors);
fbnic_set_counter(ð_mac_stats->OctetsTransmittedOK,
&mac_stats->eth_mac.OctetsTransmittedOK);
fbnic_set_counter(ð_mac_stats->FramesLostDueToIntMACXmitError,
&mac_stats->eth_mac.FramesLostDueToIntMACXmitError);
fbnic_set_counter(ð_mac_stats->OctetsReceivedOK,
&mac_stats->eth_mac.OctetsReceivedOK);
fbnic_set_counter(ð_mac_stats->FramesLostDueToIntMACRcvError,
&mac_stats->eth_mac.FramesLostDueToIntMACRcvError);
fbnic_set_counter(ð_mac_stats->MulticastFramesXmittedOK,
&mac_stats->eth_mac.MulticastFramesXmittedOK);
fbnic_set_counter(ð_mac_stats->BroadcastFramesXmittedOK,
&mac_stats->eth_mac.BroadcastFramesXmittedOK);
fbnic_set_counter(ð_mac_stats->MulticastFramesReceivedOK,
&mac_stats->eth_mac.MulticastFramesReceivedOK);
fbnic_set_counter(ð_mac_stats->BroadcastFramesReceivedOK,
&mac_stats->eth_mac.BroadcastFramesReceivedOK);
fbnic_set_counter(ð_mac_stats->FrameTooLongErrors,
&mac_stats->eth_mac.FrameTooLongErrors);
}
static void fbnic_get_ts_stats(struct net_device *netdev,
struct ethtool_ts_stats *ts_stats)
{
struct fbnic_net *fbn = netdev_priv(netdev);
u64 ts_packets, ts_lost;
struct fbnic_ring *ring;
unsigned int start;
int i;
ts_stats->pkts = fbn->tx_stats.ts_packets;
ts_stats->lost = fbn->tx_stats.ts_lost;
for (i = 0; i < fbn->num_tx_queues; i++) {
ring = fbn->tx[i];
do {
start = u64_stats_fetch_begin(&ring->stats.syncp);
ts_packets = ring->stats.ts_packets;
ts_lost = ring->stats.ts_lost;
} while (u64_stats_fetch_retry(&ring->stats.syncp, start));
ts_stats->pkts += ts_packets;
ts_stats->lost += ts_lost;
}
}
static void fbnic_get_regs(struct net_device *netdev,
struct ethtool_regs *regs, void *data)
{
struct fbnic_net *fbn = netdev_priv(netdev);
fbnic_csr_get_regs(fbn->fbd, data, ®s->version);
}
static int fbnic_get_regs_len(struct net_device *netdev)
{
struct fbnic_net *fbn = netdev_priv(netdev);
return fbnic_csr_regs_len(fbn->fbd) * sizeof(u32);
}
static const struct ethtool_ops fbnic_ethtool_ops = {
.get_drvinfo = fbnic_get_drvinfo,
.get_regs_len = fbnic_get_regs_len,
.get_regs = fbnic_get_regs,
.get_strings = fbnic_get_strings,
.get_ethtool_stats = fbnic_get_ethtool_stats,
.get_sset_count = fbnic_get_sset_count,
.get_ts_info = fbnic_get_ts_info,
.get_ts_stats = fbnic_get_ts_stats,
.get_eth_mac_stats = fbnic_get_eth_mac_stats,
};
void fbnic_set_ethtool_ops(struct net_device *dev)
{
dev->ethtool_ops = &fbnic_ethtool_ops;
}
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