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onic_ethtool.c
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onic_ethtool.c
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/*
* Copyright (c) 2020 Xilinx, Inc.
* All rights reserved.
*
* This source code is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*/
#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/ethtool.h>
#include "onic.h"
#include "onic_register.h"
extern const char onic_drv_name[];
extern const char onic_drv_ver[];
enum {NETDEV_STATS, ONIC_STATS};
struct onic_stats {
char stat_string[ETH_GSTRING_LEN];
int type;
int sizeof_stat;
int stat0_offset;
int stat1_offset;
};
#define _STAT(_name, _stat0, _stat1) { \
.stat_string = _name, \
.type = ONIC_STATS, \
.sizeof_stat = sizeof(u32), \
.stat0_offset = _stat0, \
.stat1_offset = _stat1, \
}
static const struct onic_stats onic_gstrings_stats[] = {
_STAT("stat_tx_total_pkts",
CMAC_OFFSET_STAT_TX_TOTAL_PKTS(0),
CMAC_OFFSET_STAT_TX_TOTAL_PKTS(1)),
_STAT("stat_tx_total_good_pkts",
CMAC_OFFSET_STAT_TX_TOTAL_GOOD_PKTS(0),
CMAC_OFFSET_STAT_TX_TOTAL_GOOD_PKTS(1)),
_STAT("stat_tx_total_bytes",
CMAC_OFFSET_STAT_TX_TOTAL_BYTES(0),
CMAC_OFFSET_STAT_TX_TOTAL_BYTES(1)),
_STAT("stat_tx_total_good_bytes",
CMAC_OFFSET_STAT_TX_TOTAL_GOOD_BYTES(0),
CMAC_OFFSET_STAT_TX_TOTAL_GOOD_BYTES(1)),
_STAT("stat_tx_pkt_64_bytes",
CMAC_OFFSET_STAT_TX_PKT_64_BYTES(0),
CMAC_OFFSET_STAT_TX_PKT_64_BYTES(1)),
_STAT("stat_tx_pkt_65_127_bytes",
CMAC_OFFSET_STAT_TX_PKT_65_127_BYTES(0),
CMAC_OFFSET_STAT_TX_PKT_65_127_BYTES(1)),
_STAT("stat_tx_pkt_128_255_bytes",
CMAC_OFFSET_STAT_TX_PKT_128_255_BYTES(0),
CMAC_OFFSET_STAT_TX_PKT_128_255_BYTES(1)),
_STAT("stat_tx_pkt_256_511_bytes",
CMAC_OFFSET_STAT_TX_PKT_256_511_BYTES(0),
CMAC_OFFSET_STAT_TX_PKT_256_511_BYTES(1)),
_STAT("stat_tx_pkt_512_1023_bytes",
CMAC_OFFSET_STAT_TX_PKT_512_1023_BYTES(0),
CMAC_OFFSET_STAT_TX_PKT_512_1023_BYTES(1)),
_STAT("stat_tx_pkt_1024_1518_bytes",
CMAC_OFFSET_STAT_TX_PKT_1024_1518_BYTES(0),
CMAC_OFFSET_STAT_TX_PKT_1024_1518_BYTES(1)),
_STAT("stat_tx_pkt_1519_1522_bytes",
CMAC_OFFSET_STAT_TX_PKT_1519_1522_BYTES(0),
CMAC_OFFSET_STAT_TX_PKT_1519_1522_BYTES(1)),
_STAT("stat_tx_pkt_1523_1548_bytes",
CMAC_OFFSET_STAT_TX_PKT_1523_1548_BYTES(0),
CMAC_OFFSET_STAT_TX_PKT_1523_1548_BYTES(1)),
_STAT("stat_tx_pkt_1549_2047_bytes",
CMAC_OFFSET_STAT_TX_PKT_1549_2047_BYTES(0),
CMAC_OFFSET_STAT_TX_PKT_1549_2047_BYTES(1)),
_STAT("stat_tx_pkt_2048_4095_bytes",
CMAC_OFFSET_STAT_TX_PKT_2048_4095_BYTES(0),
CMAC_OFFSET_STAT_TX_PKT_2048_4095_BYTES(1)),
_STAT("stat_tx_pkt_4096_8191_bytes",
CMAC_OFFSET_STAT_TX_PKT_4096_8191_BYTES(0),
CMAC_OFFSET_STAT_TX_PKT_4096_8191_BYTES(1)),
_STAT("stat_tx_pkt_8192_9215_bytes",
CMAC_OFFSET_STAT_TX_PKT_8192_9215_BYTES(0),
CMAC_OFFSET_STAT_TX_PKT_8192_9215_BYTES(1)),
_STAT("stat_tx_pkt_large",
CMAC_OFFSET_STAT_TX_PKT_LARGE(0),
CMAC_OFFSET_STAT_TX_PKT_LARGE(1)),
_STAT("stat_tx_pkt_small",
CMAC_OFFSET_STAT_TX_PKT_SMALL(0),
CMAC_OFFSET_STAT_TX_PKT_SMALL(1)),
_STAT("stat_tx_bad_fcs",
CMAC_OFFSET_STAT_TX_BAD_FCS(0),
CMAC_OFFSET_STAT_TX_BAD_FCS(1)),
_STAT("stat_tx_unicast",
CMAC_OFFSET_STAT_TX_UNICAST(0),
CMAC_OFFSET_STAT_TX_UNICAST(1)),
_STAT("stat_tx_multicast",
CMAC_OFFSET_STAT_TX_MULTICAST(0),
CMAC_OFFSET_STAT_TX_MULTICAST(1)),
_STAT("stat_tx_broadcast",
CMAC_OFFSET_STAT_TX_BROADCAST(0),
CMAC_OFFSET_STAT_TX_BROADCAST(1)),
_STAT("stat_tx_vlan",
CMAC_OFFSET_STAT_TX_VLAN(0),
CMAC_OFFSET_STAT_TX_VLAN(1)),
_STAT("stat_tx_pause",
CMAC_OFFSET_STAT_TX_PAUSE(0),
CMAC_OFFSET_STAT_TX_PAUSE(1)),
_STAT("stat_tx_user_pause",
CMAC_OFFSET_STAT_TX_USER_PAUSE(0),
CMAC_OFFSET_STAT_TX_USER_PAUSE(1)),
_STAT("stat_rx_total_pkts",
CMAC_OFFSET_STAT_RX_TOTAL_PKTS(0),
CMAC_OFFSET_STAT_RX_TOTAL_PKTS(1)),
_STAT("stat_rx_total_good_pkts",
CMAC_OFFSET_STAT_RX_TOTAL_GOOD_PKTS(0),
CMAC_OFFSET_STAT_RX_TOTAL_GOOD_PKTS(1)),
_STAT("stat_rx_total_bytes",
CMAC_OFFSET_STAT_RX_TOTAL_BYTES(0),
CMAC_OFFSET_STAT_RX_TOTAL_BYTES(1)),
_STAT("stat_rx_total_good_bytes",
CMAC_OFFSET_STAT_RX_TOTAL_GOOD_BYTES(0),
CMAC_OFFSET_STAT_RX_TOTAL_GOOD_BYTES(1)),
_STAT("stat_rx_pkt_64_bytes",
CMAC_OFFSET_STAT_RX_PKT_64_BYTES(0),
CMAC_OFFSET_STAT_RX_PKT_64_BYTES(1)),
_STAT("stat_rx_pkt_65_127_bytes",
CMAC_OFFSET_STAT_RX_PKT_65_127_BYTES(0),
CMAC_OFFSET_STAT_RX_PKT_65_127_BYTES(1)),
_STAT("stat_rx_pkt_128_255_bytes",
CMAC_OFFSET_STAT_RX_PKT_128_255_BYTES(0),
CMAC_OFFSET_STAT_RX_PKT_128_255_BYTES(1)),
_STAT("stat_rx_pkt_256_511_bytes",
CMAC_OFFSET_STAT_RX_PKT_256_511_BYTES(0),
CMAC_OFFSET_STAT_RX_PKT_256_511_BYTES(1)),
_STAT("stat_rx_pkt_512_1023_bytes",
CMAC_OFFSET_STAT_RX_PKT_512_1023_BYTES(0),
CMAC_OFFSET_STAT_RX_PKT_512_1023_BYTES(1)),
_STAT("stat_rx_pkt_1024_1518_bytes",
CMAC_OFFSET_STAT_RX_PKT_1024_1518_BYTES(0),
CMAC_OFFSET_STAT_RX_PKT_1024_1518_BYTES(1)),
_STAT("stat_rx_pkt_1519_1522_bytes",
CMAC_OFFSET_STAT_RX_PKT_1519_1522_BYTES(0),
CMAC_OFFSET_STAT_RX_PKT_1519_1522_BYTES(1)),
_STAT("stat_rx_pkt_1523_1548_bytes",
CMAC_OFFSET_STAT_RX_PKT_1523_1548_BYTES(0),
CMAC_OFFSET_STAT_RX_PKT_1523_1548_BYTES(1)),
_STAT("stat_rx_pkt_1549_2047_bytes",
CMAC_OFFSET_STAT_RX_PKT_1549_2047_BYTES(0),
CMAC_OFFSET_STAT_RX_PKT_1549_2047_BYTES(1)),
_STAT("stat_rx_pkt_2048_4095_bytes",
CMAC_OFFSET_STAT_RX_PKT_2048_4095_BYTES(0),
CMAC_OFFSET_STAT_RX_PKT_2048_4095_BYTES(1)),
_STAT("stat_rx_pkt_4096_8191_bytes",
CMAC_OFFSET_STAT_RX_PKT_4096_8191_BYTES(0),
CMAC_OFFSET_STAT_RX_PKT_4096_8191_BYTES(1)),
_STAT("stat_rx_pkt_8192_9215_bytes",
CMAC_OFFSET_STAT_RX_PKT_8192_9215_BYTES(0),
CMAC_OFFSET_STAT_RX_PKT_8192_9215_BYTES(1)),
_STAT("stat_rx_pkt_large",
CMAC_OFFSET_STAT_RX_PKT_LARGE(0),
CMAC_OFFSET_STAT_RX_PKT_LARGE(1)),
_STAT("stat_rx_pkt_small",
CMAC_OFFSET_STAT_RX_PKT_SMALL(0),
CMAC_OFFSET_STAT_RX_PKT_SMALL(1)),
_STAT("stat_rx_undersize",
CMAC_OFFSET_STAT_RX_UNDERSIZE(0),
CMAC_OFFSET_STAT_RX_UNDERSIZE(1)),
_STAT("stat_rx_fragment",
CMAC_OFFSET_STAT_RX_FRAGMENT(0),
CMAC_OFFSET_STAT_RX_FRAGMENT(1)),
_STAT("stat_rx_oversize",
CMAC_OFFSET_STAT_RX_OVERSIZE(0),
CMAC_OFFSET_STAT_RX_OVERSIZE(1)),
_STAT("stat_rx_toolong",
CMAC_OFFSET_STAT_RX_TOOLONG(0),
CMAC_OFFSET_STAT_RX_TOOLONG(1)),
_STAT("stat_rx_jabber",
CMAC_OFFSET_STAT_RX_JABBER(0),
CMAC_OFFSET_STAT_RX_JABBER(1)),
_STAT("stat_rx_bad_fcs",
CMAC_OFFSET_STAT_RX_BAD_FCS(0),
CMAC_OFFSET_STAT_RX_BAD_FCS(1)),
_STAT("stat_rx_pkt_bad_fcs",
CMAC_OFFSET_STAT_RX_PKT_BAD_FCS(0),
CMAC_OFFSET_STAT_RX_PKT_BAD_FCS(1)),
_STAT("stat_rx_stomped_fcs",
CMAC_OFFSET_STAT_RX_STOMPED_FCS(0),
CMAC_OFFSET_STAT_RX_STOMPED_FCS(1)),
_STAT("stat_rx_unicast",
CMAC_OFFSET_STAT_RX_UNICAST(0),
CMAC_OFFSET_STAT_RX_UNICAST(1)),
_STAT("stat_rx_multicast",
CMAC_OFFSET_STAT_RX_MULTICAST(0),
CMAC_OFFSET_STAT_RX_MULTICAST(1)),
_STAT("stat_rx_broadcast",
CMAC_OFFSET_STAT_RX_BROADCAST(0),
CMAC_OFFSET_STAT_RX_BROADCAST(1)),
_STAT("stat_rx_vlan",
CMAC_OFFSET_STAT_RX_VLAN(0),
CMAC_OFFSET_STAT_RX_VLAN(1)),
_STAT("stat_rx_pause",
CMAC_OFFSET_STAT_RX_PAUSE(0),
CMAC_OFFSET_STAT_RX_PAUSE(1)),
_STAT("stat_rx_user_pause",
CMAC_OFFSET_STAT_RX_USER_PAUSE(0),
CMAC_OFFSET_STAT_RX_USER_PAUSE(1)),
_STAT("stat_rx_inrangeerr",
CMAC_OFFSET_STAT_RX_INRANGEERR(0),
CMAC_OFFSET_STAT_RX_INRANGEERR(1)),
_STAT("stat_rx_truncated",
CMAC_OFFSET_STAT_RX_TRUNCATED(0),
CMAC_OFFSET_STAT_RX_TRUNCATED(1)),
};
#define ONIC_QUEUE_STATS_LEN 0
#define ONIC_GLOBAL_STATS_LEN ARRAY_SIZE(onic_gstrings_stats)
#define ONIC_STATS_LEN (ONIC_GLOBAL_STATS_LEN + ONIC_QUEUE_STATS_LEN)
static void onic_get_drvinfo(struct net_device *netdev,
struct ethtool_drvinfo *drvinfo)
{
struct onic_private *priv = netdev_priv(netdev);
strlcpy(drvinfo->driver, onic_drv_name, sizeof(drvinfo->driver));
strlcpy(drvinfo->version, onic_drv_ver,
sizeof(drvinfo->version));
strlcpy(drvinfo->bus_info, pci_name(priv->pdev),
sizeof(drvinfo->bus_info));
}
static u32 onic_get_link(struct net_device *netdev)
{
u32 val, carrier_ok;
u8 cmac_idx;
struct onic_private *priv = netdev_priv(netdev);
struct onic_hardware *hw = &priv->hw;
cmac_idx = test_bit(ONIC_FLAG_MASTER_PF, priv->flags) ? 0 : 1;
/* read twice to flush any previously latched value */
val = onic_read_reg(hw, CMAC_OFFSET_STAT_RX_STATUS(cmac_idx));
val = onic_read_reg(hw, CMAC_OFFSET_STAT_RX_STATUS(cmac_idx));
carrier_ok = netif_carrier_ok(netdev);
/* verify RX status reg bits are 0x3*/
val = (val == 0x3);
netdev_info(netdev, "ethtool: onic_get_link port: %d carrier ok: %u -- "
"rx status ok: %u\r\n", cmac_idx, carrier_ok, val);
return (carrier_ok && val);
}
static void onic_get_ethtool_stats(struct net_device *netdev,
struct ethtool_stats /*__always_unused*/ *stats,
u64 *data)
{
struct onic_private *priv = netdev_priv(netdev);
struct onic_hardware *hw = &priv->hw;
struct pci_dev *pdev = priv->pdev;
int i;
u16 func_id;
u32 off;
func_id = PCI_FUNC(pdev->devfn);
// Note :
// write 1 into REG_TICK (offset 0x2B0).
// this is WriteOnce/SelfClear (WO/SC).
// with this, the cmac system updates all STAT_* registers.
if (func_id == 0)
onic_write_reg(hw, CMAC_OFFSET_TICK(0), 1);
else onic_write_reg(hw, CMAC_OFFSET_TICK(1), 1);
for (i = 0; i < ONIC_GLOBAL_STATS_LEN; i++) {
if (func_id == 0)
off = onic_gstrings_stats[i].stat0_offset;
else off = onic_gstrings_stats[i].stat1_offset;
data[i] = onic_read_reg(hw,off);
}
return;
}
static void onic_get_strings(struct net_device *netdev, u32 stringset,
u8 *data)
{
u8 *p = data;
int i;
for (i = 0; i < ONIC_GLOBAL_STATS_LEN; i++) {
memcpy(p, onic_gstrings_stats[i].stat_string,
ETH_GSTRING_LEN);
p += ETH_GSTRING_LEN;
}
}
static int onic_get_sset_count(struct net_device *netdev, int sset)
{
return ONIC_STATS_LEN;
}
static const struct ethtool_ops onic_ethtool_ops = {
.get_drvinfo = onic_get_drvinfo,
.get_link = onic_get_link,
.get_ethtool_stats = onic_get_ethtool_stats,
.get_strings = onic_get_strings,
.get_sset_count = onic_get_sset_count,
};
void onic_set_ethtool_ops(struct net_device *netdev)
{
netdev->ethtool_ops = &onic_ethtool_ops;
}