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cxgb4_ethtool.c
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cxgb4_ethtool.c
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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2013-2015 Chelsio Communications. All rights reserved.
*/
#include <linux/firmware.h>
#include <linux/mdio.h>
#include "cxgb4.h"
#include "t4_regs.h"
#include "t4fw_api.h"
#include "cxgb4_cudbg.h"
#include "cxgb4_filter.h"
#include "cxgb4_tc_flower.h"
#define EEPROM_MAGIC 0x38E2F10C
static u32 get_msglevel(struct net_device *dev)
{
return netdev2adap(dev)->msg_enable;
}
static void set_msglevel(struct net_device *dev, u32 val)
{
netdev2adap(dev)->msg_enable = val;
}
enum cxgb4_ethtool_tests {
CXGB4_ETHTOOL_LB_TEST,
CXGB4_ETHTOOL_MAX_TEST,
};
static const char cxgb4_selftest_strings[CXGB4_ETHTOOL_MAX_TEST][ETH_GSTRING_LEN] = {
"Loop back test (offline)",
};
static const char * const flash_region_strings[] = {
"All",
"Firmware",
"PHY Firmware",
"Boot",
"Boot CFG",
};
static const char stats_strings[][ETH_GSTRING_LEN] = {
"tx_octets_ok ",
"tx_frames_ok ",
"tx_broadcast_frames ",
"tx_multicast_frames ",
"tx_unicast_frames ",
"tx_error_frames ",
"tx_frames_64 ",
"tx_frames_65_to_127 ",
"tx_frames_128_to_255 ",
"tx_frames_256_to_511 ",
"tx_frames_512_to_1023 ",
"tx_frames_1024_to_1518 ",
"tx_frames_1519_to_max ",
"tx_frames_dropped ",
"tx_pause_frames ",
"tx_ppp0_frames ",
"tx_ppp1_frames ",
"tx_ppp2_frames ",
"tx_ppp3_frames ",
"tx_ppp4_frames ",
"tx_ppp5_frames ",
"tx_ppp6_frames ",
"tx_ppp7_frames ",
"rx_octets_ok ",
"rx_frames_ok ",
"rx_broadcast_frames ",
"rx_multicast_frames ",
"rx_unicast_frames ",
"rx_frames_too_long ",
"rx_jabber_errors ",
"rx_fcs_errors ",
"rx_length_errors ",
"rx_symbol_errors ",
"rx_runt_frames ",
"rx_frames_64 ",
"rx_frames_65_to_127 ",
"rx_frames_128_to_255 ",
"rx_frames_256_to_511 ",
"rx_frames_512_to_1023 ",
"rx_frames_1024_to_1518 ",
"rx_frames_1519_to_max ",
"rx_pause_frames ",
"rx_ppp0_frames ",
"rx_ppp1_frames ",
"rx_ppp2_frames ",
"rx_ppp3_frames ",
"rx_ppp4_frames ",
"rx_ppp5_frames ",
"rx_ppp6_frames ",
"rx_ppp7_frames ",
"rx_bg0_frames_dropped ",
"rx_bg1_frames_dropped ",
"rx_bg2_frames_dropped ",
"rx_bg3_frames_dropped ",
"rx_bg0_frames_trunc ",
"rx_bg1_frames_trunc ",
"rx_bg2_frames_trunc ",
"rx_bg3_frames_trunc ",
"tso ",
"uso ",
"tx_csum_offload ",
"rx_csum_good ",
"vlan_extractions ",
"vlan_insertions ",
"gro_packets ",
"gro_merged ",
#if IS_ENABLED(CONFIG_CHELSIO_TLS_DEVICE)
"tx_tls_encrypted_packets",
"tx_tls_encrypted_bytes ",
"tx_tls_ctx ",
"tx_tls_ooo ",
"tx_tls_skip_no_sync_data",
"tx_tls_drop_no_sync_data",
"tx_tls_drop_bypass_req ",
#endif
};
static char adapter_stats_strings[][ETH_GSTRING_LEN] = {
"db_drop ",
"db_full ",
"db_empty ",
"write_coal_success ",
"write_coal_fail ",
};
static char loopback_stats_strings[][ETH_GSTRING_LEN] = {
"-------Loopback----------- ",
"octets_ok ",
"frames_ok ",
"bcast_frames ",
"mcast_frames ",
"ucast_frames ",
"error_frames ",
"frames_64 ",
"frames_65_to_127 ",
"frames_128_to_255 ",
"frames_256_to_511 ",
"frames_512_to_1023 ",
"frames_1024_to_1518 ",
"frames_1519_to_max ",
"frames_dropped ",
"bg0_frames_dropped ",
"bg1_frames_dropped ",
"bg2_frames_dropped ",
"bg3_frames_dropped ",
"bg0_frames_trunc ",
"bg1_frames_trunc ",
"bg2_frames_trunc ",
"bg3_frames_trunc ",
};
static const char cxgb4_priv_flags_strings[][ETH_GSTRING_LEN] = {
[PRIV_FLAG_PORT_TX_VM_BIT] = "port_tx_vm_wr",
};
static int get_sset_count(struct net_device *dev, int sset)
{
switch (sset) {
case ETH_SS_STATS:
return ARRAY_SIZE(stats_strings) +
ARRAY_SIZE(adapter_stats_strings) +
ARRAY_SIZE(loopback_stats_strings);
case ETH_SS_PRIV_FLAGS:
return ARRAY_SIZE(cxgb4_priv_flags_strings);
case ETH_SS_TEST:
return ARRAY_SIZE(cxgb4_selftest_strings);
default:
return -EOPNOTSUPP;
}
}
static int get_regs_len(struct net_device *dev)
{
struct adapter *adap = netdev2adap(dev);
return t4_get_regs_len(adap);
}
static int get_eeprom_len(struct net_device *dev)
{
return EEPROMSIZE;
}
static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
{
struct adapter *adapter = netdev2adap(dev);
u32 exprom_vers;
strlcpy(info->driver, cxgb4_driver_name, sizeof(info->driver));
strlcpy(info->bus_info, pci_name(adapter->pdev),
sizeof(info->bus_info));
info->regdump_len = get_regs_len(dev);
if (adapter->params.fw_vers)
snprintf(info->fw_version, sizeof(info->fw_version),
"%u.%u.%u.%u, TP %u.%u.%u.%u",
FW_HDR_FW_VER_MAJOR_G(adapter->params.fw_vers),
FW_HDR_FW_VER_MINOR_G(adapter->params.fw_vers),
FW_HDR_FW_VER_MICRO_G(adapter->params.fw_vers),
FW_HDR_FW_VER_BUILD_G(adapter->params.fw_vers),
FW_HDR_FW_VER_MAJOR_G(adapter->params.tp_vers),
FW_HDR_FW_VER_MINOR_G(adapter->params.tp_vers),
FW_HDR_FW_VER_MICRO_G(adapter->params.tp_vers),
FW_HDR_FW_VER_BUILD_G(adapter->params.tp_vers));
if (!t4_get_exprom_version(adapter, &exprom_vers))
snprintf(info->erom_version, sizeof(info->erom_version),
"%u.%u.%u.%u",
FW_HDR_FW_VER_MAJOR_G(exprom_vers),
FW_HDR_FW_VER_MINOR_G(exprom_vers),
FW_HDR_FW_VER_MICRO_G(exprom_vers),
FW_HDR_FW_VER_BUILD_G(exprom_vers));
info->n_priv_flags = ARRAY_SIZE(cxgb4_priv_flags_strings);
}
static void get_strings(struct net_device *dev, u32 stringset, u8 *data)
{
if (stringset == ETH_SS_STATS) {
memcpy(data, stats_strings, sizeof(stats_strings));
data += sizeof(stats_strings);
memcpy(data, adapter_stats_strings,
sizeof(adapter_stats_strings));
data += sizeof(adapter_stats_strings);
memcpy(data, loopback_stats_strings,
sizeof(loopback_stats_strings));
} else if (stringset == ETH_SS_PRIV_FLAGS) {
memcpy(data, cxgb4_priv_flags_strings,
sizeof(cxgb4_priv_flags_strings));
} else if (stringset == ETH_SS_TEST) {
memcpy(data, cxgb4_selftest_strings,
sizeof(cxgb4_selftest_strings));
}
}
/* port stats maintained per queue of the port. They should be in the same
* order as in stats_strings above.
*/
struct queue_port_stats {
u64 tso;
u64 uso;
u64 tx_csum;
u64 rx_csum;
u64 vlan_ex;
u64 vlan_ins;
u64 gro_pkts;
u64 gro_merged;
#if IS_ENABLED(CONFIG_CHELSIO_TLS_DEVICE)
u64 tx_tls_encrypted_packets;
u64 tx_tls_encrypted_bytes;
u64 tx_tls_ctx;
u64 tx_tls_ooo;
u64 tx_tls_skip_no_sync_data;
u64 tx_tls_drop_no_sync_data;
u64 tx_tls_drop_bypass_req;
#endif
};
struct adapter_stats {
u64 db_drop;
u64 db_full;
u64 db_empty;
u64 wc_success;
u64 wc_fail;
};
static void collect_sge_port_stats(const struct adapter *adap,
const struct port_info *p,
struct queue_port_stats *s)
{
const struct sge_eth_txq *tx = &adap->sge.ethtxq[p->first_qset];
const struct sge_eth_rxq *rx = &adap->sge.ethrxq[p->first_qset];
#if IS_ENABLED(CONFIG_CHELSIO_TLS_DEVICE)
const struct ch_ktls_port_stats_debug *ktls_stats;
#endif
struct sge_eohw_txq *eohw_tx;
unsigned int i;
memset(s, 0, sizeof(*s));
for (i = 0; i < p->nqsets; i++, rx++, tx++) {
s->tso += tx->tso;
s->uso += tx->uso;
s->tx_csum += tx->tx_cso;
s->rx_csum += rx->stats.rx_cso;
s->vlan_ex += rx->stats.vlan_ex;
s->vlan_ins += tx->vlan_ins;
s->gro_pkts += rx->stats.lro_pkts;
s->gro_merged += rx->stats.lro_merged;
}
if (adap->sge.eohw_txq) {
eohw_tx = &adap->sge.eohw_txq[p->first_qset];
for (i = 0; i < p->nqsets; i++, eohw_tx++) {
s->tso += eohw_tx->tso;
s->uso += eohw_tx->uso;
s->tx_csum += eohw_tx->tx_cso;
s->vlan_ins += eohw_tx->vlan_ins;
}
}
#if IS_ENABLED(CONFIG_CHELSIO_TLS_DEVICE)
ktls_stats = &adap->ch_ktls_stats.ktls_port[p->port_id];
s->tx_tls_encrypted_packets =
atomic64_read(&ktls_stats->ktls_tx_encrypted_packets);
s->tx_tls_encrypted_bytes =
atomic64_read(&ktls_stats->ktls_tx_encrypted_bytes);
s->tx_tls_ctx = atomic64_read(&ktls_stats->ktls_tx_ctx);
s->tx_tls_ooo = atomic64_read(&ktls_stats->ktls_tx_ooo);
s->tx_tls_skip_no_sync_data =
atomic64_read(&ktls_stats->ktls_tx_skip_no_sync_data);
s->tx_tls_drop_no_sync_data =
atomic64_read(&ktls_stats->ktls_tx_drop_no_sync_data);
s->tx_tls_drop_bypass_req =
atomic64_read(&ktls_stats->ktls_tx_drop_bypass_req);
#endif
}
static void collect_adapter_stats(struct adapter *adap, struct adapter_stats *s)
{
u64 val1, val2;
memset(s, 0, sizeof(*s));
s->db_drop = adap->db_stats.db_drop;
s->db_full = adap->db_stats.db_full;
s->db_empty = adap->db_stats.db_empty;
if (!is_t4(adap->params.chip)) {
int v;
v = t4_read_reg(adap, SGE_STAT_CFG_A);
if (STATSOURCE_T5_G(v) == 7) {
val2 = t4_read_reg(adap, SGE_STAT_MATCH_A);
val1 = t4_read_reg(adap, SGE_STAT_TOTAL_A);
s->wc_success = val1 - val2;
s->wc_fail = val2;
}
}
}
static void get_stats(struct net_device *dev, struct ethtool_stats *stats,
u64 *data)
{
struct port_info *pi = netdev_priv(dev);
struct adapter *adapter = pi->adapter;
struct lb_port_stats s;
int i;
u64 *p0;
t4_get_port_stats_offset(adapter, pi->tx_chan,
(struct port_stats *)data,
&pi->stats_base);
data += sizeof(struct port_stats) / sizeof(u64);
collect_sge_port_stats(adapter, pi, (struct queue_port_stats *)data);
data += sizeof(struct queue_port_stats) / sizeof(u64);
collect_adapter_stats(adapter, (struct adapter_stats *)data);
data += sizeof(struct adapter_stats) / sizeof(u64);
*data++ = (u64)pi->port_id;
memset(&s, 0, sizeof(s));
t4_get_lb_stats(adapter, pi->port_id, &s);
p0 = &s.octets;
for (i = 0; i < ARRAY_SIZE(loopback_stats_strings) - 1; i++)
*data++ = (unsigned long long)*p0++;
}
static void get_regs(struct net_device *dev, struct ethtool_regs *regs,
void *buf)
{
struct adapter *adap = netdev2adap(dev);
size_t buf_size;
buf_size = t4_get_regs_len(adap);
regs->version = mk_adap_vers(adap);
t4_get_regs(adap, buf, buf_size);
}
static int restart_autoneg(struct net_device *dev)
{
struct port_info *p = netdev_priv(dev);
if (!netif_running(dev))
return -EAGAIN;
if (p->link_cfg.autoneg != AUTONEG_ENABLE)
return -EINVAL;
t4_restart_aneg(p->adapter, p->adapter->pf, p->tx_chan);
return 0;
}
static int identify_port(struct net_device *dev,
enum ethtool_phys_id_state state)
{
unsigned int val;
struct adapter *adap = netdev2adap(dev);
if (state == ETHTOOL_ID_ACTIVE)
val = 0xffff;
else if (state == ETHTOOL_ID_INACTIVE)
val = 0;
else
return -EINVAL;
return t4_identify_port(adap, adap->pf, netdev2pinfo(dev)->viid, val);
}
/**
* from_fw_port_mod_type - translate Firmware Port/Module type to Ethtool
* @port_type: Firmware Port Type
* @mod_type: Firmware Module Type
*
* Translate Firmware Port/Module type to Ethtool Port Type.
*/
static int from_fw_port_mod_type(enum fw_port_type port_type,
enum fw_port_module_type mod_type)
{
if (port_type == FW_PORT_TYPE_BT_SGMII ||
port_type == FW_PORT_TYPE_BT_XFI ||
port_type == FW_PORT_TYPE_BT_XAUI) {
return PORT_TP;
} else if (port_type == FW_PORT_TYPE_FIBER_XFI ||
port_type == FW_PORT_TYPE_FIBER_XAUI) {
return PORT_FIBRE;
} else if (port_type == FW_PORT_TYPE_SFP ||
port_type == FW_PORT_TYPE_QSFP_10G ||
port_type == FW_PORT_TYPE_QSA ||
port_type == FW_PORT_TYPE_QSFP ||
port_type == FW_PORT_TYPE_CR4_QSFP ||
port_type == FW_PORT_TYPE_CR_QSFP ||
port_type == FW_PORT_TYPE_CR2_QSFP ||
port_type == FW_PORT_TYPE_SFP28) {
if (mod_type == FW_PORT_MOD_TYPE_LR ||
mod_type == FW_PORT_MOD_TYPE_SR ||
mod_type == FW_PORT_MOD_TYPE_ER ||
mod_type == FW_PORT_MOD_TYPE_LRM)
return PORT_FIBRE;
else if (mod_type == FW_PORT_MOD_TYPE_TWINAX_PASSIVE ||
mod_type == FW_PORT_MOD_TYPE_TWINAX_ACTIVE)
return PORT_DA;
else
return PORT_OTHER;
} else if (port_type == FW_PORT_TYPE_KR4_100G ||
port_type == FW_PORT_TYPE_KR_SFP28 ||
port_type == FW_PORT_TYPE_KR_XLAUI) {
return PORT_NONE;
}
return PORT_OTHER;
}
/**
* speed_to_fw_caps - translate Port Speed to Firmware Port Capabilities
* @speed: speed in Kb/s
*
* Translates a specific Port Speed into a Firmware Port Capabilities
* value.
*/
static unsigned int speed_to_fw_caps(int speed)
{
if (speed == 100)
return FW_PORT_CAP32_SPEED_100M;
if (speed == 1000)
return FW_PORT_CAP32_SPEED_1G;
if (speed == 10000)
return FW_PORT_CAP32_SPEED_10G;
if (speed == 25000)
return FW_PORT_CAP32_SPEED_25G;
if (speed == 40000)
return FW_PORT_CAP32_SPEED_40G;
if (speed == 50000)
return FW_PORT_CAP32_SPEED_50G;
if (speed == 100000)
return FW_PORT_CAP32_SPEED_100G;
if (speed == 200000)
return FW_PORT_CAP32_SPEED_200G;
if (speed == 400000)
return FW_PORT_CAP32_SPEED_400G;
return 0;
}
/**
* fw_caps_to_lmm - translate Firmware to ethtool Link Mode Mask
* @port_type: Firmware Port Type
* @fw_caps: Firmware Port Capabilities
* @link_mode_mask: ethtool Link Mode Mask
*
* Translate a Firmware Port Capabilities specification to an ethtool
* Link Mode Mask.
*/
static void fw_caps_to_lmm(enum fw_port_type port_type,
fw_port_cap32_t fw_caps,
unsigned long *link_mode_mask)
{
#define SET_LMM(__lmm_name) \
do { \
__set_bit(ETHTOOL_LINK_MODE_ ## __lmm_name ## _BIT, \
link_mode_mask); \
} while (0)
#define FW_CAPS_TO_LMM(__fw_name, __lmm_name) \
do { \
if (fw_caps & FW_PORT_CAP32_ ## __fw_name) \
SET_LMM(__lmm_name); \
} while (0)
switch (port_type) {
case FW_PORT_TYPE_BT_SGMII:
case FW_PORT_TYPE_BT_XFI:
case FW_PORT_TYPE_BT_XAUI:
SET_LMM(TP);
FW_CAPS_TO_LMM(SPEED_100M, 100baseT_Full);
FW_CAPS_TO_LMM(SPEED_1G, 1000baseT_Full);
FW_CAPS_TO_LMM(SPEED_10G, 10000baseT_Full);
break;
case FW_PORT_TYPE_KX4:
case FW_PORT_TYPE_KX:
SET_LMM(Backplane);
FW_CAPS_TO_LMM(SPEED_1G, 1000baseKX_Full);
FW_CAPS_TO_LMM(SPEED_10G, 10000baseKX4_Full);
break;
case FW_PORT_TYPE_KR:
SET_LMM(Backplane);
FW_CAPS_TO_LMM(SPEED_10G, 10000baseKR_Full);
break;
case FW_PORT_TYPE_BP_AP:
SET_LMM(Backplane);
FW_CAPS_TO_LMM(SPEED_1G, 1000baseKX_Full);
FW_CAPS_TO_LMM(SPEED_10G, 10000baseR_FEC);
FW_CAPS_TO_LMM(SPEED_10G, 10000baseKR_Full);
break;
case FW_PORT_TYPE_BP4_AP:
SET_LMM(Backplane);
FW_CAPS_TO_LMM(SPEED_1G, 1000baseKX_Full);
FW_CAPS_TO_LMM(SPEED_10G, 10000baseR_FEC);
FW_CAPS_TO_LMM(SPEED_10G, 10000baseKR_Full);
FW_CAPS_TO_LMM(SPEED_10G, 10000baseKX4_Full);
break;
case FW_PORT_TYPE_FIBER_XFI:
case FW_PORT_TYPE_FIBER_XAUI:
case FW_PORT_TYPE_SFP:
case FW_PORT_TYPE_QSFP_10G:
case FW_PORT_TYPE_QSA:
SET_LMM(FIBRE);
FW_CAPS_TO_LMM(SPEED_1G, 1000baseT_Full);
FW_CAPS_TO_LMM(SPEED_10G, 10000baseT_Full);
break;
case FW_PORT_TYPE_BP40_BA:
case FW_PORT_TYPE_QSFP:
SET_LMM(FIBRE);
FW_CAPS_TO_LMM(SPEED_1G, 1000baseT_Full);
FW_CAPS_TO_LMM(SPEED_10G, 10000baseT_Full);
FW_CAPS_TO_LMM(SPEED_40G, 40000baseSR4_Full);
break;
case FW_PORT_TYPE_CR_QSFP:
case FW_PORT_TYPE_SFP28:
SET_LMM(FIBRE);
FW_CAPS_TO_LMM(SPEED_1G, 1000baseT_Full);
FW_CAPS_TO_LMM(SPEED_10G, 10000baseT_Full);
FW_CAPS_TO_LMM(SPEED_25G, 25000baseCR_Full);
break;
case FW_PORT_TYPE_KR_SFP28:
SET_LMM(Backplane);
FW_CAPS_TO_LMM(SPEED_1G, 1000baseT_Full);
FW_CAPS_TO_LMM(SPEED_10G, 10000baseKR_Full);
FW_CAPS_TO_LMM(SPEED_25G, 25000baseKR_Full);
break;
case FW_PORT_TYPE_KR_XLAUI:
SET_LMM(Backplane);
FW_CAPS_TO_LMM(SPEED_1G, 1000baseKX_Full);
FW_CAPS_TO_LMM(SPEED_10G, 10000baseKR_Full);
FW_CAPS_TO_LMM(SPEED_40G, 40000baseKR4_Full);
break;
case FW_PORT_TYPE_CR2_QSFP:
SET_LMM(FIBRE);
FW_CAPS_TO_LMM(SPEED_50G, 50000baseSR2_Full);
break;
case FW_PORT_TYPE_KR4_100G:
case FW_PORT_TYPE_CR4_QSFP:
SET_LMM(FIBRE);
FW_CAPS_TO_LMM(SPEED_1G, 1000baseT_Full);
FW_CAPS_TO_LMM(SPEED_10G, 10000baseKR_Full);
FW_CAPS_TO_LMM(SPEED_40G, 40000baseSR4_Full);
FW_CAPS_TO_LMM(SPEED_25G, 25000baseCR_Full);
FW_CAPS_TO_LMM(SPEED_50G, 50000baseCR2_Full);
FW_CAPS_TO_LMM(SPEED_100G, 100000baseCR4_Full);
break;
default:
break;
}
if (fw_caps & FW_PORT_CAP32_FEC_V(FW_PORT_CAP32_FEC_M)) {
FW_CAPS_TO_LMM(FEC_RS, FEC_RS);
FW_CAPS_TO_LMM(FEC_BASER_RS, FEC_BASER);
} else {
SET_LMM(FEC_NONE);
}
FW_CAPS_TO_LMM(ANEG, Autoneg);
FW_CAPS_TO_LMM(802_3_PAUSE, Pause);
FW_CAPS_TO_LMM(802_3_ASM_DIR, Asym_Pause);
#undef FW_CAPS_TO_LMM
#undef SET_LMM
}
/**
* lmm_to_fw_caps - translate ethtool Link Mode Mask to Firmware
* capabilities
* @link_mode_mask: ethtool Link Mode Mask
*
* Translate ethtool Link Mode Mask into a Firmware Port capabilities
* value.
*/
static unsigned int lmm_to_fw_caps(const unsigned long *link_mode_mask)
{
unsigned int fw_caps = 0;
#define LMM_TO_FW_CAPS(__lmm_name, __fw_name) \
do { \
if (test_bit(ETHTOOL_LINK_MODE_ ## __lmm_name ## _BIT, \
link_mode_mask)) \
fw_caps |= FW_PORT_CAP32_ ## __fw_name; \
} while (0)
LMM_TO_FW_CAPS(100baseT_Full, SPEED_100M);
LMM_TO_FW_CAPS(1000baseT_Full, SPEED_1G);
LMM_TO_FW_CAPS(10000baseT_Full, SPEED_10G);
LMM_TO_FW_CAPS(40000baseSR4_Full, SPEED_40G);
LMM_TO_FW_CAPS(25000baseCR_Full, SPEED_25G);
LMM_TO_FW_CAPS(50000baseCR2_Full, SPEED_50G);
LMM_TO_FW_CAPS(100000baseCR4_Full, SPEED_100G);
#undef LMM_TO_FW_CAPS
return fw_caps;
}
static int get_link_ksettings(struct net_device *dev,
struct ethtool_link_ksettings *link_ksettings)
{
struct port_info *pi = netdev_priv(dev);
struct ethtool_link_settings *base = &link_ksettings->base;
/* For the nonce, the Firmware doesn't send up Port State changes
* when the Virtual Interface attached to the Port is down. So
* if it's down, let's grab any changes.
*/
if (!netif_running(dev))
(void)t4_update_port_info(pi);
ethtool_link_ksettings_zero_link_mode(link_ksettings, supported);
ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising);
ethtool_link_ksettings_zero_link_mode(link_ksettings, lp_advertising);
base->port = from_fw_port_mod_type(pi->port_type, pi->mod_type);
if (pi->mdio_addr >= 0) {
base->phy_address = pi->mdio_addr;
base->mdio_support = (pi->port_type == FW_PORT_TYPE_BT_SGMII
? ETH_MDIO_SUPPORTS_C22
: ETH_MDIO_SUPPORTS_C45);
} else {
base->phy_address = 255;
base->mdio_support = 0;
}
fw_caps_to_lmm(pi->port_type, pi->link_cfg.pcaps,
link_ksettings->link_modes.supported);
fw_caps_to_lmm(pi->port_type,
t4_link_acaps(pi->adapter,
pi->lport,
&pi->link_cfg),
link_ksettings->link_modes.advertising);
fw_caps_to_lmm(pi->port_type, pi->link_cfg.lpacaps,
link_ksettings->link_modes.lp_advertising);
base->speed = (netif_carrier_ok(dev)
? pi->link_cfg.speed
: SPEED_UNKNOWN);
base->duplex = DUPLEX_FULL;
base->autoneg = pi->link_cfg.autoneg;
if (pi->link_cfg.pcaps & FW_PORT_CAP32_ANEG)
ethtool_link_ksettings_add_link_mode(link_ksettings,
supported, Autoneg);
if (pi->link_cfg.autoneg)
ethtool_link_ksettings_add_link_mode(link_ksettings,
advertising, Autoneg);
return 0;
}
static int set_link_ksettings(struct net_device *dev,
const struct ethtool_link_ksettings *link_ksettings)
{
struct port_info *pi = netdev_priv(dev);
struct link_config *lc = &pi->link_cfg;
const struct ethtool_link_settings *base = &link_ksettings->base;
struct link_config old_lc;
unsigned int fw_caps;
int ret = 0;
/* only full-duplex supported */
if (base->duplex != DUPLEX_FULL)
return -EINVAL;
old_lc = *lc;
if (!(lc->pcaps & FW_PORT_CAP32_ANEG) ||
base->autoneg == AUTONEG_DISABLE) {
fw_caps = speed_to_fw_caps(base->speed);
/* Speed must be supported by Physical Port Capabilities. */
if (!(lc->pcaps & fw_caps))
return -EINVAL;
lc->speed_caps = fw_caps;
lc->acaps = fw_caps;
} else {
fw_caps =
lmm_to_fw_caps(link_ksettings->link_modes.advertising);
if (!(lc->pcaps & fw_caps))
return -EINVAL;
lc->speed_caps = 0;
lc->acaps = fw_caps | FW_PORT_CAP32_ANEG;
}
lc->autoneg = base->autoneg;
/* If the firmware rejects the Link Configuration request, back out
* the changes and report the error.
*/
ret = t4_link_l1cfg(pi->adapter, pi->adapter->mbox, pi->tx_chan, lc);
if (ret)
*lc = old_lc;
return ret;
}
/* Translate the Firmware FEC value into the ethtool value. */
static inline unsigned int fwcap_to_eth_fec(unsigned int fw_fec)
{
unsigned int eth_fec = 0;
if (fw_fec & FW_PORT_CAP32_FEC_RS)
eth_fec |= ETHTOOL_FEC_RS;
if (fw_fec & FW_PORT_CAP32_FEC_BASER_RS)
eth_fec |= ETHTOOL_FEC_BASER;
/* if nothing is set, then FEC is off */
if (!eth_fec)
eth_fec = ETHTOOL_FEC_OFF;
return eth_fec;
}
/* Translate Common Code FEC value into ethtool value. */
static inline unsigned int cc_to_eth_fec(unsigned int cc_fec)
{
unsigned int eth_fec = 0;
if (cc_fec & FEC_AUTO)
eth_fec |= ETHTOOL_FEC_AUTO;
if (cc_fec & FEC_RS)
eth_fec |= ETHTOOL_FEC_RS;
if (cc_fec & FEC_BASER_RS)
eth_fec |= ETHTOOL_FEC_BASER;
/* if nothing is set, then FEC is off */
if (!eth_fec)
eth_fec = ETHTOOL_FEC_OFF;
return eth_fec;
}
/* Translate ethtool FEC value into Common Code value. */
static inline unsigned int eth_to_cc_fec(unsigned int eth_fec)
{
unsigned int cc_fec = 0;
if (eth_fec & ETHTOOL_FEC_OFF)
return cc_fec;
if (eth_fec & ETHTOOL_FEC_AUTO)
cc_fec |= FEC_AUTO;
if (eth_fec & ETHTOOL_FEC_RS)
cc_fec |= FEC_RS;
if (eth_fec & ETHTOOL_FEC_BASER)
cc_fec |= FEC_BASER_RS;
return cc_fec;
}
static int get_fecparam(struct net_device *dev, struct ethtool_fecparam *fec)
{
const struct port_info *pi = netdev_priv(dev);
const struct link_config *lc = &pi->link_cfg;
/* Translate the Firmware FEC Support into the ethtool value. We
* always support IEEE 802.3 "automatic" selection of Link FEC type if
* any FEC is supported.
*/
fec->fec = fwcap_to_eth_fec(lc->pcaps);
if (fec->fec != ETHTOOL_FEC_OFF)
fec->fec |= ETHTOOL_FEC_AUTO;
/* Translate the current internal FEC parameters into the
* ethtool values.
*/
fec->active_fec = cc_to_eth_fec(lc->fec);
return 0;
}
static int set_fecparam(struct net_device *dev, struct ethtool_fecparam *fec)
{
struct port_info *pi = netdev_priv(dev);
struct link_config *lc = &pi->link_cfg;
struct link_config old_lc;
int ret;
/* Save old Link Configuration in case the L1 Configure below
* fails.
*/
old_lc = *lc;
/* Try to perform the L1 Configure and return the result of that
* effort. If it fails, revert the attempted change.
*/
lc->requested_fec = eth_to_cc_fec(fec->fec);
ret = t4_link_l1cfg(pi->adapter, pi->adapter->mbox,
pi->tx_chan, lc);
if (ret)
*lc = old_lc;
return ret;
}
static void get_pauseparam(struct net_device *dev,
struct ethtool_pauseparam *epause)
{
struct port_info *p = netdev_priv(dev);
epause->autoneg = (p->link_cfg.requested_fc & PAUSE_AUTONEG) != 0;
epause->rx_pause = (p->link_cfg.advertised_fc & PAUSE_RX) != 0;
epause->tx_pause = (p->link_cfg.advertised_fc & PAUSE_TX) != 0;
}
static int set_pauseparam(struct net_device *dev,
struct ethtool_pauseparam *epause)
{
struct port_info *p = netdev_priv(dev);
struct link_config *lc = &p->link_cfg;
if (epause->autoneg == AUTONEG_DISABLE)
lc->requested_fc = 0;
else if (lc->pcaps & FW_PORT_CAP32_ANEG)
lc->requested_fc = PAUSE_AUTONEG;
else
return -EINVAL;
if (epause->rx_pause)
lc->requested_fc |= PAUSE_RX;
if (epause->tx_pause)
lc->requested_fc |= PAUSE_TX;
if (netif_running(dev))
return t4_link_l1cfg(p->adapter, p->adapter->mbox, p->tx_chan,
lc);
return 0;
}
static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
{
const struct port_info *pi = netdev_priv(dev);
const struct sge *s = &pi->adapter->sge;
e->rx_max_pending = MAX_RX_BUFFERS;
e->rx_mini_max_pending = MAX_RSPQ_ENTRIES;
e->rx_jumbo_max_pending = 0;
e->tx_max_pending = MAX_TXQ_ENTRIES;
e->rx_pending = s->ethrxq[pi->first_qset].fl.size - 8;
e->rx_mini_pending = s->ethrxq[pi->first_qset].rspq.size;
e->rx_jumbo_pending = 0;
e->tx_pending = s->ethtxq[pi->first_qset].q.size;
}
static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
{
int i;
const struct port_info *pi = netdev_priv(dev);
struct adapter *adapter = pi->adapter;
struct sge *s = &adapter->sge;
if (e->rx_pending > MAX_RX_BUFFERS || e->rx_jumbo_pending ||
e->tx_pending > MAX_TXQ_ENTRIES ||
e->rx_mini_pending > MAX_RSPQ_ENTRIES ||
e->rx_mini_pending < MIN_RSPQ_ENTRIES ||
e->rx_pending < MIN_FL_ENTRIES || e->tx_pending < MIN_TXQ_ENTRIES)
return -EINVAL;
if (adapter->flags & CXGB4_FULL_INIT_DONE)
return -EBUSY;
for (i = 0; i < pi->nqsets; ++i) {
s->ethtxq[pi->first_qset + i].q.size = e->tx_pending;
s->ethrxq[pi->first_qset + i].fl.size = e->rx_pending + 8;
s->ethrxq[pi->first_qset + i].rspq.size = e->rx_mini_pending;
}
return 0;
}
/**
* set_rx_intr_params - set a net devices's RX interrupt holdoff paramete!
* @dev: the network device
* @us: the hold-off time in us, or 0 to disable timer
* @cnt: the hold-off packet count, or 0 to disable counter
*
* Set the RX interrupt hold-off parameters for a network device.
*/
static int set_rx_intr_params(struct net_device *dev,
unsigned int us, unsigned int cnt)
{
int i, err;
struct port_info *pi = netdev_priv(dev);
struct adapter *adap = pi->adapter;
struct sge_eth_rxq *q = &adap->sge.ethrxq[pi->first_qset];
for (i = 0; i < pi->nqsets; i++, q++) {
err = cxgb4_set_rspq_intr_params(&q->rspq, us, cnt);
if (err)
return err;
}
return 0;
}
static int set_adaptive_rx_setting(struct net_device *dev, int adaptive_rx)
{
int i;
struct port_info *pi = netdev_priv(dev);
struct adapter *adap = pi->adapter;
struct sge_eth_rxq *q = &adap->sge.ethrxq[pi->first_qset];
for (i = 0; i < pi->nqsets; i++, q++)
q->rspq.adaptive_rx = adaptive_rx;
return 0;
}
static int get_adaptive_rx_setting(struct net_device *dev)
{
struct port_info *pi = netdev_priv(dev);
struct adapter *adap = pi->adapter;
struct sge_eth_rxq *q = &adap->sge.ethrxq[pi->first_qset];
return q->rspq.adaptive_rx;
}
/* Return the current global Adapter SGE Doorbell Queue Timer Tick for all
* Ethernet TX Queues.
*/
static int get_dbqtimer_tick(struct net_device *dev)
{
struct port_info *pi = netdev_priv(dev);
struct adapter *adap = pi->adapter;
if (!(adap->flags & CXGB4_SGE_DBQ_TIMER))
return 0;
return adap->sge.dbqtimer_tick;
}
/* Return the SGE Doorbell Queue Timer Value for the Ethernet TX Queues
* associated with a Network Device.
*/
static int get_dbqtimer(struct net_device *dev)
{
struct port_info *pi = netdev_priv(dev);
struct adapter *adap = pi->adapter;