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linux-zen-server/drivers/net/dsa/sja1105/sja1105_ethtool.c

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Initial commit
2023-08-30 17:53:23 +02:00
// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2018-2019, Vladimir Oltean <olteanv@gmail.com>
*/
#include "sja1105.h"
enum sja1105_counter_index {
__SJA1105_COUNTER_UNUSED,
/* MAC */
N_RUNT,
N_SOFERR,
N_ALIGNERR,
N_MIIERR,
TYPEERR,
SIZEERR,
TCTIMEOUT,
PRIORERR,
NOMASTER,
MEMOV,
MEMERR,
INVTYP,
INTCYOV,
DOMERR,
PCFBAGDROP,
SPCPRIOR,
AGEPRIOR,
PORTDROP,
LENDROP,
BAGDROP,
POLICEERR,
DRPNONA664ERR,
SPCERR,
AGEDRP,
/* HL1 */
N_N664ERR,
N_VLANERR,
N_UNRELEASED,
N_SIZEERR,
N_CRCERR,
N_VLNOTFOUND,
N_CTPOLERR,
N_POLERR,
N_RXFRM,
N_RXBYTE,
N_TXFRM,
N_TXBYTE,
/* HL2 */
N_QFULL,
N_PART_DROP,
N_EGR_DISABLED,
N_NOT_REACH,
__MAX_SJA1105ET_PORT_COUNTER,
/* P/Q/R/S only */
/* ETHER */
N_DROPS_NOLEARN = __MAX_SJA1105ET_PORT_COUNTER,
N_DROPS_NOROUTE,
N_DROPS_ILL_DTAG,
N_DROPS_DTAG,
N_DROPS_SOTAG,
N_DROPS_SITAG,
N_DROPS_UTAG,
N_TX_BYTES_1024_2047,
N_TX_BYTES_512_1023,
N_TX_BYTES_256_511,
N_TX_BYTES_128_255,
N_TX_BYTES_65_127,
N_TX_BYTES_64,
N_TX_MCAST,
N_TX_BCAST,
N_RX_BYTES_1024_2047,
N_RX_BYTES_512_1023,
N_RX_BYTES_256_511,
N_RX_BYTES_128_255,
N_RX_BYTES_65_127,
N_RX_BYTES_64,
N_RX_MCAST,
N_RX_BCAST,
__MAX_SJA1105PQRS_PORT_COUNTER,
};
struct sja1105_port_counter {
enum sja1105_stats_area area;
const char name[ETH_GSTRING_LEN];
int offset;
int start;
int end;
bool is_64bit;
};
static const struct sja1105_port_counter sja1105_port_counters[] = {
/* MAC-Level Diagnostic Counters */
[N_RUNT] = {
.area = MAC,
.name = "n_runt",
.offset = 0,
.start = 31,
.end = 24,
},
[N_SOFERR] = {
.area = MAC,
.name = "n_soferr",
.offset = 0x0,
.start = 23,
.end = 16,
},
[N_ALIGNERR] = {
.area = MAC,
.name = "n_alignerr",
.offset = 0x0,
.start = 15,
.end = 8,
},
[N_MIIERR] = {
.area = MAC,
.name = "n_miierr",
.offset = 0x0,
.start = 7,
.end = 0,
},
/* MAC-Level Diagnostic Flags */
[TYPEERR] = {
.area = MAC,
.name = "typeerr",
.offset = 0x1,
.start = 27,
.end = 27,
},
[SIZEERR] = {
.area = MAC,
.name = "sizeerr",
.offset = 0x1,
.start = 26,
.end = 26,
},
[TCTIMEOUT] = {
.area = MAC,
.name = "tctimeout",
.offset = 0x1,
.start = 25,
.end = 25,
},
[PRIORERR] = {
.area = MAC,
.name = "priorerr",
.offset = 0x1,
.start = 24,
.end = 24,
},
[NOMASTER] = {
.area = MAC,
.name = "nomaster",
.offset = 0x1,
.start = 23,
.end = 23,
},
[MEMOV] = {
.area = MAC,
.name = "memov",
.offset = 0x1,
.start = 22,
.end = 22,
},
[MEMERR] = {
.area = MAC,
.name = "memerr",
.offset = 0x1,
.start = 21,
.end = 21,
},
[INVTYP] = {
.area = MAC,
.name = "invtyp",
.offset = 0x1,
.start = 19,
.end = 19,
},
[INTCYOV] = {
.area = MAC,
.name = "intcyov",
.offset = 0x1,
.start = 18,
.end = 18,
},
[DOMERR] = {
.area = MAC,
.name = "domerr",
.offset = 0x1,
.start = 17,
.end = 17,
},
[PCFBAGDROP] = {
.area = MAC,
.name = "pcfbagdrop",
.offset = 0x1,
.start = 16,
.end = 16,
},
[SPCPRIOR] = {
.area = MAC,
.name = "spcprior",
.offset = 0x1,
.start = 15,
.end = 12,
},
[AGEPRIOR] = {
.area = MAC,
.name = "ageprior",
.offset = 0x1,
.start = 11,
.end = 8,
},
[PORTDROP] = {
.area = MAC,
.name = "portdrop",
.offset = 0x1,
.start = 6,
.end = 6,
},
[LENDROP] = {
.area = MAC,
.name = "lendrop",
.offset = 0x1,
.start = 5,
.end = 5,
},
[BAGDROP] = {
.area = MAC,
.name = "bagdrop",
.offset = 0x1,
.start = 4,
.end = 4,
},
[POLICEERR] = {
.area = MAC,
.name = "policeerr",
.offset = 0x1,
.start = 3,
.end = 3,
},
[DRPNONA664ERR] = {
.area = MAC,
.name = "drpnona664err",
.offset = 0x1,
.start = 2,
.end = 2,
},
[SPCERR] = {
.area = MAC,
.name = "spcerr",
.offset = 0x1,
.start = 1,
.end = 1,
},
[AGEDRP] = {
.area = MAC,
.name = "agedrp",
.offset = 0x1,
.start = 0,
.end = 0,
},
/* High-Level Diagnostic Counters */
[N_N664ERR] = {
.area = HL1,
.name = "n_n664err",
.offset = 0xF,
.start = 31,
.end = 0,
},
[N_VLANERR] = {
.area = HL1,
.name = "n_vlanerr",
.offset = 0xE,
.start = 31,
.end = 0,
},
[N_UNRELEASED] = {
.area = HL1,
.name = "n_unreleased",
.offset = 0xD,
.start = 31,
.end = 0,
},
[N_SIZEERR] = {
.area = HL1,
.name = "n_sizeerr",
.offset = 0xC,
.start = 31,
.end = 0,
},
[N_CRCERR] = {
.area = HL1,
.name = "n_crcerr",
.offset = 0xB,
.start = 31,
.end = 0,
},
[N_VLNOTFOUND] = {
.area = HL1,
.name = "n_vlnotfound",
.offset = 0xA,
.start = 31,
.end = 0,
},
[N_CTPOLERR] = {
.area = HL1,
.name = "n_ctpolerr",
.offset = 0x9,
.start = 31,
.end = 0,
},
[N_POLERR] = {
.area = HL1,
.name = "n_polerr",
.offset = 0x8,
.start = 31,
.end = 0,
},
[N_RXFRM] = {
.area = HL1,
.name = "n_rxfrm",
.offset = 0x6,
.start = 31,
.end = 0,
.is_64bit = true,
},
[N_RXBYTE] = {
.area = HL1,
.name = "n_rxbyte",
.offset = 0x4,
.start = 31,
.end = 0,
.is_64bit = true,
},
[N_TXFRM] = {
.area = HL1,
.name = "n_txfrm",
.offset = 0x2,
.start = 31,
.end = 0,
.is_64bit = true,
},
[N_TXBYTE] = {
.area = HL1,
.name = "n_txbyte",
.offset = 0x0,
.start = 31,
.end = 0,
.is_64bit = true,
},
[N_QFULL] = {
.area = HL2,
.name = "n_qfull",
.offset = 0x3,
.start = 31,
.end = 0,
},
[N_PART_DROP] = {
.area = HL2,
.name = "n_part_drop",
.offset = 0x2,
.start = 31,
.end = 0,
},
[N_EGR_DISABLED] = {
.area = HL2,
.name = "n_egr_disabled",
.offset = 0x1,
.start = 31,
.end = 0,
},
[N_NOT_REACH] = {
.area = HL2,
.name = "n_not_reach",
.offset = 0x0,
.start = 31,
.end = 0,
},
/* Ether Stats */
[N_DROPS_NOLEARN] = {
.area = ETHER,
.name = "n_drops_nolearn",
.offset = 0x16,
.start = 31,
.end = 0,
},
[N_DROPS_NOROUTE] = {
.area = ETHER,
.name = "n_drops_noroute",
.offset = 0x15,
.start = 31,
.end = 0,
},
[N_DROPS_ILL_DTAG] = {
.area = ETHER,
.name = "n_drops_ill_dtag",
.offset = 0x14,
.start = 31,
.end = 0,
},
[N_DROPS_DTAG] = {
.area = ETHER,
.name = "n_drops_dtag",
.offset = 0x13,
.start = 31,
.end = 0,
},
[N_DROPS_SOTAG] = {
.area = ETHER,
.name = "n_drops_sotag",
.offset = 0x12,
.start = 31,
.end = 0,
},
[N_DROPS_SITAG] = {
.area = ETHER,
.name = "n_drops_sitag",
.offset = 0x11,
.start = 31,
.end = 0,
},
[N_DROPS_UTAG] = {
.area = ETHER,
.name = "n_drops_utag",
.offset = 0x10,
.start = 31,
.end = 0,
},
[N_TX_BYTES_1024_2047] = {
.area = ETHER,
.name = "n_tx_bytes_1024_2047",
.offset = 0x0F,
.start = 31,
.end = 0,
},
[N_TX_BYTES_512_1023] = {
.area = ETHER,
.name = "n_tx_bytes_512_1023",
.offset = 0x0E,
.start = 31,
.end = 0,
},
[N_TX_BYTES_256_511] = {
.area = ETHER,
.name = "n_tx_bytes_256_511",
.offset = 0x0D,
.start = 31,
.end = 0,
},
[N_TX_BYTES_128_255] = {
.area = ETHER,
.name = "n_tx_bytes_128_255",
.offset = 0x0C,
.start = 31,
.end = 0,
},
[N_TX_BYTES_65_127] = {
.area = ETHER,
.name = "n_tx_bytes_65_127",
.offset = 0x0B,
.start = 31,
.end = 0,
},
[N_TX_BYTES_64] = {
.area = ETHER,
.name = "n_tx_bytes_64",
.offset = 0x0A,
.start = 31,
.end = 0,
},
[N_TX_MCAST] = {
.area = ETHER,
.name = "n_tx_mcast",
.offset = 0x09,
.start = 31,
.end = 0,
},
[N_TX_BCAST] = {
.area = ETHER,
.name = "n_tx_bcast",
.offset = 0x08,
.start = 31,
.end = 0,
},
[N_RX_BYTES_1024_2047] = {
.area = ETHER,
.name = "n_rx_bytes_1024_2047",
.offset = 0x07,
.start = 31,
.end = 0,
},
[N_RX_BYTES_512_1023] = {
.area = ETHER,
.name = "n_rx_bytes_512_1023",
.offset = 0x06,
.start = 31,
.end = 0,
},
[N_RX_BYTES_256_511] = {
.area = ETHER,
.name = "n_rx_bytes_256_511",
.offset = 0x05,
.start = 31,
.end = 0,
},
[N_RX_BYTES_128_255] = {
.area = ETHER,
.name = "n_rx_bytes_128_255",
.offset = 0x04,
.start = 31,
.end = 0,
},
[N_RX_BYTES_65_127] = {
.area = ETHER,
.name = "n_rx_bytes_65_127",
.offset = 0x03,
.start = 31,
.end = 0,
},
[N_RX_BYTES_64] = {
.area = ETHER,
.name = "n_rx_bytes_64",
.offset = 0x02,
.start = 31,
.end = 0,
},
[N_RX_MCAST] = {
.area = ETHER,
.name = "n_rx_mcast",
.offset = 0x01,
.start = 31,
.end = 0,
},
[N_RX_BCAST] = {
.area = ETHER,
.name = "n_rx_bcast",
.offset = 0x00,
.start = 31,
.end = 0,
},
};
static int sja1105_port_counter_read(struct sja1105_private *priv, int port,
enum sja1105_counter_index idx, u64 *ctr)
{
const struct sja1105_port_counter *c = &sja1105_port_counters[idx];
size_t size = c->is_64bit ? 8 : 4;
u8 buf[8] = {0};
u64 regs;
int rc;
regs = priv->info->regs->stats[c->area][port];
rc = sja1105_xfer_buf(priv, SPI_READ, regs + c->offset, buf, size);
if (rc)
return rc;
sja1105_unpack(buf, ctr, c->start, c->end, size);
return 0;
}
void sja1105_get_ethtool_stats(struct dsa_switch *ds, int port, u64 *data)
{
struct sja1105_private *priv = ds->priv;
enum sja1105_counter_index max_ctr, i;
int rc, k = 0;
if (priv->info->device_id == SJA1105E_DEVICE_ID ||
priv->info->device_id == SJA1105T_DEVICE_ID)
max_ctr = __MAX_SJA1105ET_PORT_COUNTER;
else
max_ctr = __MAX_SJA1105PQRS_PORT_COUNTER;
for (i = 0; i < max_ctr; i++) {
rc = sja1105_port_counter_read(priv, port, i, &data[k++]);
if (rc) {
dev_err(ds->dev,
"Failed to read port %d counters: %d\n",
port, rc);
break;
}
}
}
void sja1105_get_strings(struct dsa_switch *ds, int port,
u32 stringset, u8 *data)
{
struct sja1105_private *priv = ds->priv;
enum sja1105_counter_index max_ctr, i;
char *p = data;
if (stringset != ETH_SS_STATS)
return;
if (priv->info->device_id == SJA1105E_DEVICE_ID ||
priv->info->device_id == SJA1105T_DEVICE_ID)
max_ctr = __MAX_SJA1105ET_PORT_COUNTER;
else
max_ctr = __MAX_SJA1105PQRS_PORT_COUNTER;
for (i = 0; i < max_ctr; i++) {
strscpy(p, sja1105_port_counters[i].name, ETH_GSTRING_LEN);
p += ETH_GSTRING_LEN;
}
}
int sja1105_get_sset_count(struct dsa_switch *ds, int port, int sset)
{
struct sja1105_private *priv = ds->priv;
enum sja1105_counter_index max_ctr, i;
int sset_count = 0;
if (sset != ETH_SS_STATS)
return -EOPNOTSUPP;
if (priv->info->device_id == SJA1105E_DEVICE_ID ||
priv->info->device_id == SJA1105T_DEVICE_ID)
max_ctr = __MAX_SJA1105ET_PORT_COUNTER;
else
max_ctr = __MAX_SJA1105PQRS_PORT_COUNTER;
for (i = 0; i < max_ctr; i++) {
if (!strlen(sja1105_port_counters[i].name))
continue;
sset_count++;
}
return sset_count;
}