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linux_dsm_epyc7002/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c
Ganesh Goudar eb97ad99f9 cxgb4/cxgb4vf: Add link mode mask API to cxgb4 and cxgb4vf 
Based on original work by Casey Leedom <leedom@chelsio.com>

Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-25 10:26:45 -07:00

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/*
* Copyright (C) 2013-2015 Chelsio Communications. All rights reserved.
*
* This program 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 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/firmware.h>
#include <linux/mdio.h>
#include "cxgb4.h"
#include "t4_regs.h"
#include "t4fw_api.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;
}
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 ",
"tx_csum_offload ",
"rx_csum_good ",
"vlan_extractions ",
"vlan_insertions ",
"gro_packets ",
"gro_merged ",
};
static char adapter_stats_strings[][ETH_GSTRING_LEN] = {
"db_drop ",
"db_full ",
"db_empty ",
"tcp_ipv4_out_rsts ",
"tcp_ipv4_in_segs ",
"tcp_ipv4_out_segs ",
"tcp_ipv4_retrans_segs ",
"tcp_ipv6_out_rsts ",
"tcp_ipv6_in_segs ",
"tcp_ipv6_out_segs ",
"tcp_ipv6_retrans_segs ",
"usm_ddp_frames ",
"usm_ddp_octets ",
"usm_ddp_drops ",
"rdma_no_rqe_mod_defer ",
"rdma_no_rqe_pkt_defer ",
"tp_err_ofld_no_neigh ",
"tp_err_ofld_cong_defer ",
"write_coal_success ",
"write_coal_fail ",
};
static char channel_stats_strings[][ETH_GSTRING_LEN] = {
"--------Channel--------- ",
"tp_cpl_requests ",
"tp_cpl_responses ",
"tp_mac_in_errs ",
"tp_hdr_in_errs ",
"tp_tcp_in_errs ",
"tp_tcp6_in_errs ",
"tp_tnl_cong_drops ",
"tp_tnl_tx_drops ",
"tp_ofld_vlan_drops ",
"tp_ofld_chan_drops ",
"fcoe_octets_ddp ",
"fcoe_frames_ddp ",
"fcoe_frames_drop ",
};
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 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(channel_stats_strings) +
ARRAY_SIZE(loopback_stats_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->version, cxgb4_driver_version,
sizeof(info->version));
strlcpy(info->bus_info, pci_name(adapter->pdev),
sizeof(info->bus_info));
info->regdump_len = get_regs_len(dev);
if (!adapter->params.fw_vers)
strcpy(info->fw_version, "N/A");
else
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));
}
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, channel_stats_strings,
sizeof(channel_stats_strings));
data += sizeof(channel_stats_strings);
memcpy(data, loopback_stats_strings,
sizeof(loopback_stats_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 tx_csum;
u64 rx_csum;
u64 vlan_ex;
u64 vlan_ins;
u64 gro_pkts;
u64 gro_merged;
};
struct adapter_stats {
u64 db_drop;
u64 db_full;
u64 db_empty;
u64 tcp_v4_out_rsts;
u64 tcp_v4_in_segs;
u64 tcp_v4_out_segs;
u64 tcp_v4_retrans_segs;
u64 tcp_v6_out_rsts;
u64 tcp_v6_in_segs;
u64 tcp_v6_out_segs;
u64 tcp_v6_retrans_segs;
u64 frames;
u64 octets;
u64 drops;
u64 rqe_dfr_mod;
u64 rqe_dfr_pkt;
u64 ofld_no_neigh;
u64 ofld_cong_defer;
u64 wc_success;
u64 wc_fail;
};
struct channel_stats {
u64 cpl_req;
u64 cpl_rsp;
u64 mac_in_errs;
u64 hdr_in_errs;
u64 tcp_in_errs;
u64 tcp6_in_errs;
u64 tnl_cong_drops;
u64 tnl_tx_drops;
u64 ofld_vlan_drops;
u64 ofld_chan_drops;
u64 octets_ddp;
u64 frames_ddp;
u64 frames_drop;
};
static void collect_sge_port_stats(const struct adapter *adap,
const struct port_info *p,
struct queue_port_stats *s)
{
int i;
const struct sge_eth_txq *tx = &adap->sge.ethtxq[p->first_qset];
const struct sge_eth_rxq *rx = &adap->sge.ethrxq[p->first_qset];
memset(s, 0, sizeof(*s));
for (i = 0; i < p->nqsets; i++, rx++, tx++) {
s->tso += tx->tso;
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;
}
}
static void collect_adapter_stats(struct adapter *adap, struct adapter_stats *s)
{
struct tp_tcp_stats v4, v6;
struct tp_rdma_stats rdma_stats;
struct tp_err_stats err_stats;
struct tp_usm_stats usm_stats;
u64 val1, val2;
memset(s, 0, sizeof(*s));
spin_lock(&adap->stats_lock);
t4_tp_get_tcp_stats(adap, &v4, &v6);
t4_tp_get_rdma_stats(adap, &rdma_stats);
t4_get_usm_stats(adap, &usm_stats);
t4_tp_get_err_stats(adap, &err_stats);
spin_unlock(&adap->stats_lock);
s->db_drop = adap->db_stats.db_drop;
s->db_full = adap->db_stats.db_full;
s->db_empty = adap->db_stats.db_empty;
s->tcp_v4_out_rsts = v4.tcp_out_rsts;
s->tcp_v4_in_segs = v4.tcp_in_segs;
s->tcp_v4_out_segs = v4.tcp_out_segs;
s->tcp_v4_retrans_segs = v4.tcp_retrans_segs;
s->tcp_v6_out_rsts = v6.tcp_out_rsts;
s->tcp_v6_in_segs = v6.tcp_in_segs;
s->tcp_v6_out_segs = v6.tcp_out_segs;
s->tcp_v6_retrans_segs = v6.tcp_retrans_segs;
if (is_offload(adap)) {
s->frames = usm_stats.frames;
s->octets = usm_stats.octets;
s->drops = usm_stats.drops;
s->rqe_dfr_mod = rdma_stats.rqe_dfr_mod;
s->rqe_dfr_pkt = rdma_stats.rqe_dfr_pkt;
}
s->ofld_no_neigh = err_stats.ofld_no_neigh;
s->ofld_cong_defer = err_stats.ofld_cong_defer;
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 collect_channel_stats(struct adapter *adap, struct channel_stats *s,
u8 i)
{
struct tp_cpl_stats cpl_stats;
struct tp_err_stats err_stats;
struct tp_fcoe_stats fcoe_stats;
memset(s, 0, sizeof(*s));
spin_lock(&adap->stats_lock);
t4_tp_get_cpl_stats(adap, &cpl_stats);
t4_tp_get_err_stats(adap, &err_stats);
t4_get_fcoe_stats(adap, i, &fcoe_stats);
spin_unlock(&adap->stats_lock);
s->cpl_req = cpl_stats.req[i];
s->cpl_rsp = cpl_stats.rsp[i];
s->mac_in_errs = err_stats.mac_in_errs[i];
s->hdr_in_errs = err_stats.hdr_in_errs[i];
s->tcp_in_errs = err_stats.tcp_in_errs[i];
s->tcp6_in_errs = err_stats.tcp6_in_errs[i];
s->tnl_cong_drops = err_stats.tnl_cong_drops[i];
s->tnl_tx_drops = err_stats.tnl_tx_drops[i];
s->ofld_vlan_drops = err_stats.ofld_vlan_drops[i];
s->ofld_chan_drops = err_stats.ofld_chan_drops[i];
s->octets_ddp = fcoe_stats.octets_ddp;
s->frames_ddp = fcoe_stats.frames_ddp;
s->frames_drop = fcoe_stats.frames_drop;
}
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;
collect_channel_stats(adapter, (struct channel_stats *)data,
pi->port_id);
data += sizeof(struct channel_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) {
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;
}
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_CAP_SPEED_100M;
if (speed == 1000)
return FW_PORT_CAP_SPEED_1G;
if (speed == 10000)
return FW_PORT_CAP_SPEED_10G;
if (speed == 25000)
return FW_PORT_CAP_SPEED_25G;
if (speed == 40000)
return FW_PORT_CAP_SPEED_40G;
if (speed == 100000)
return FW_PORT_CAP_SPEED_100G;
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,
unsigned int fw_caps,
unsigned long *link_mode_mask)
{
#define SET_LMM(__lmm_name) __set_bit(ETHTOOL_LINK_MODE_ ## __lmm_name \
## _BIT, link_mode_mask)
#define FW_CAPS_TO_LMM(__fw_name, __lmm_name) \
do { \
if (fw_caps & FW_PORT_CAP_ ## __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);
SET_LMM(10000baseKR_Full);
break;
case FW_PORT_TYPE_BP_AP:
SET_LMM(Backplane);
SET_LMM(10000baseR_FEC);
SET_LMM(10000baseKR_Full);
SET_LMM(1000baseKX_Full);
break;
case FW_PORT_TYPE_BP4_AP:
SET_LMM(Backplane);
SET_LMM(10000baseR_FEC);
SET_LMM(10000baseKR_Full);
SET_LMM(1000baseKX_Full);
SET_LMM(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);
SET_LMM(40000baseSR4_Full);
break;
case FW_PORT_TYPE_CR_QSFP:
case FW_PORT_TYPE_SFP28:
SET_LMM(FIBRE);
SET_LMM(25000baseCR_Full);
break;
case FW_PORT_TYPE_KR4_100G:
case FW_PORT_TYPE_CR4_QSFP:
SET_LMM(FIBRE);
SET_LMM(100000baseCR4_Full);
break;
default:
break;
}
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_CAP_ ## __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(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)
{
const struct port_info *pi = netdev_priv(dev);
struct ethtool_link_settings *base = &link_ksettings->base;
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.supported,
link_ksettings->link_modes.supported);
fw_caps_to_lmm(pi->port_type, pi->link_cfg.advertising,
link_ksettings->link_modes.advertising);
fw_caps_to_lmm(pi->port_type, pi->link_cfg.lp_advertising,
link_ksettings->link_modes.lp_advertising);
if (netif_carrier_ok(dev)) {
base->speed = pi->link_cfg.speed;
base->duplex = DUPLEX_FULL;
} else {
base->speed = SPEED_UNKNOWN;
base->duplex = DUPLEX_UNKNOWN;
}
base->autoneg = pi->link_cfg.autoneg;
if (pi->link_cfg.supported & FW_PORT_CAP_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;
if (!(lc->supported & FW_PORT_CAP_ANEG)) {
/* PHY offers a single speed. See if that's what's
* being requested.
*/
if (base->autoneg == AUTONEG_DISABLE &&
(lc->supported & speed_to_fw_caps(base->speed)))
return 0;
return -EINVAL;
}
old_lc = *lc;
if (base->autoneg == AUTONEG_DISABLE) {
fw_caps = speed_to_fw_caps(base->speed);
if (!(lc->supported & fw_caps))
return -EINVAL;
lc->requested_speed = fw_caps;
lc->advertising = 0;
} else {
fw_caps =
lmm_to_fw_caps(link_ksettings->link_modes.advertising);
if (!(lc->supported & fw_caps))
return -EINVAL;
lc->requested_speed = 0;
lc->advertising = fw_caps | FW_PORT_CAP_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;
}
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.fc & PAUSE_RX) != 0;
epause->tx_pause = (p->link_cfg.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->supported & FW_PORT_CAP_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 & 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;
}
static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
{
set_adaptive_rx_setting(dev, c->use_adaptive_rx_coalesce);
return set_rx_intr_params(dev, c->rx_coalesce_usecs,
c->rx_max_coalesced_frames);
}
static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
{
const struct port_info *pi = netdev_priv(dev);
const struct adapter *adap = pi->adapter;
const struct sge_rspq *rq = &adap->sge.ethrxq[pi->first_qset].rspq;
c->rx_coalesce_usecs = qtimer_val(adap, rq);
c->rx_max_coalesced_frames = (rq->intr_params & QINTR_CNT_EN_F) ?
adap->sge.counter_val[rq->pktcnt_idx] : 0;
c->use_adaptive_rx_coalesce = get_adaptive_rx_setting(dev);
return 0;
}
/**
* eeprom_ptov - translate a physical EEPROM address to virtual
* @phys_addr: the physical EEPROM address
* @fn: the PCI function number
* @sz: size of function-specific area
*
* Translate a physical EEPROM address to virtual. The first 1K is
* accessed through virtual addresses starting at 31K, the rest is
* accessed through virtual addresses starting at 0.
*
* The mapping is as follows:
* [0..1K) -> [31K..32K)
* [1K..1K+A) -> [31K-A..31K)
* [1K+A..ES) -> [0..ES-A-1K)
*
* where A = @fn * @sz, and ES = EEPROM size.
*/
static int eeprom_ptov(unsigned int phys_addr, unsigned int fn, unsigned int sz)
{
fn *= sz;
if (phys_addr < 1024)
return phys_addr + (31 << 10);
if (phys_addr < 1024 + fn)
return 31744 - fn + phys_addr - 1024;
if (phys_addr < EEPROMSIZE)
return phys_addr - 1024 - fn;
return -EINVAL;
}
/* The next two routines implement eeprom read/write from physical addresses.
*/
static int eeprom_rd_phys(struct adapter *adap, unsigned int phys_addr, u32 *v)
{
int vaddr = eeprom_ptov(phys_addr, adap->pf, EEPROMPFSIZE);
if (vaddr >= 0)
vaddr = pci_read_vpd(adap->pdev, vaddr, sizeof(u32), v);
return vaddr < 0 ? vaddr : 0;
}
static int eeprom_wr_phys(struct adapter *adap, unsigned int phys_addr, u32 v)
{
int vaddr = eeprom_ptov(phys_addr, adap->pf, EEPROMPFSIZE);
if (vaddr >= 0)
vaddr = pci_write_vpd(adap->pdev, vaddr, sizeof(u32), &v);
return vaddr < 0 ? vaddr : 0;
}
#define EEPROM_MAGIC 0x38E2F10C
static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e,
u8 *data)
{
int i, err = 0;
struct adapter *adapter = netdev2adap(dev);
u8 *buf = t4_alloc_mem(EEPROMSIZE);
if (!buf)
return -ENOMEM;
e->magic = EEPROM_MAGIC;
for (i = e->offset & ~3; !err && i < e->offset + e->len; i += 4)
err = eeprom_rd_phys(adapter, i, (u32 *)&buf[i]);
if (!err)
memcpy(data, buf + e->offset, e->len);
t4_free_mem(buf);
return err;
}
static int set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
u8 *data)
{
u8 *buf;
int err = 0;
u32 aligned_offset, aligned_len, *p;
struct adapter *adapter = netdev2adap(dev);
if (eeprom->magic != EEPROM_MAGIC)
return -EINVAL;
aligned_offset = eeprom->offset & ~3;
aligned_len = (eeprom->len + (eeprom->offset & 3) + 3) & ~3;
if (adapter->pf > 0) {
u32 start = 1024 + adapter->pf * EEPROMPFSIZE;
if (aligned_offset < start ||
aligned_offset + aligned_len > start + EEPROMPFSIZE)
return -EPERM;
}
if (aligned_offset != eeprom->offset || aligned_len != eeprom->len) {
/* RMW possibly needed for first or last words.
*/
buf = t4_alloc_mem(aligned_len);
if (!buf)
return -ENOMEM;
err = eeprom_rd_phys(adapter, aligned_offset, (u32 *)buf);
if (!err && aligned_len > 4)
err = eeprom_rd_phys(adapter,
aligned_offset + aligned_len - 4,
(u32 *)&buf[aligned_len - 4]);
if (err)
goto out;
memcpy(buf + (eeprom->offset & 3), data, eeprom->len);
} else {
buf = data;
}
err = t4_seeprom_wp(adapter, false);
if (err)
goto out;
for (p = (u32 *)buf; !err && aligned_len; aligned_len -= 4, p++) {
err = eeprom_wr_phys(adapter, aligned_offset, *p);
aligned_offset += 4;
}
if (!err)
err = t4_seeprom_wp(adapter, true);
out:
if (buf != data)
t4_free_mem(buf);
return err;
}
static int set_flash(struct net_device *netdev, struct ethtool_flash *ef)
{
int ret;
const struct firmware *fw;
struct adapter *adap = netdev2adap(netdev);
unsigned int mbox = PCIE_FW_MASTER_M + 1;
u32 pcie_fw;
unsigned int master;
u8 master_vld = 0;
pcie_fw = t4_read_reg(adap, PCIE_FW_A);
master = PCIE_FW_MASTER_G(pcie_fw);
if (pcie_fw & PCIE_FW_MASTER_VLD_F)
master_vld = 1;
/* if csiostor is the master return */
if (master_vld && (master != adap->pf)) {
dev_warn(adap->pdev_dev,
"cxgb4 driver needs to be loaded as MASTER to support FW flash\n");
return -EOPNOTSUPP;
}
ef->data[sizeof(ef->data) - 1] = '\0';
ret = request_firmware(&fw, ef->data, adap->pdev_dev);
if (ret < 0)
return ret;
/* If the adapter has been fully initialized then we'll go ahead and
* try to get the firmware's cooperation in upgrading to the new
* firmware image otherwise we'll try to do the entire job from the
* host ... and we always "force" the operation in this path.
*/
if (adap->flags & FULL_INIT_DONE)
mbox = adap->mbox;
ret = t4_fw_upgrade(adap, mbox, fw->data, fw->size, 1);
release_firmware(fw);
if (!ret)
dev_info(adap->pdev_dev,
"loaded firmware %s, reload cxgb4 driver\n", ef->data);
return ret;
}
static int get_ts_info(struct net_device *dev, struct ethtool_ts_info *ts_info)
{
ts_info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
SOF_TIMESTAMPING_RX_SOFTWARE |
SOF_TIMESTAMPING_SOFTWARE;
ts_info->so_timestamping |= SOF_TIMESTAMPING_RX_HARDWARE |
SOF_TIMESTAMPING_RAW_HARDWARE;
ts_info->phc_index = -1;
return 0;
}
static u32 get_rss_table_size(struct net_device *dev)
{
const struct port_info *pi = netdev_priv(dev);
return pi->rss_size;
}
static int get_rss_table(struct net_device *dev, u32 *p, u8 *key, u8 *hfunc)
{
const struct port_info *pi = netdev_priv(dev);
unsigned int n = pi->rss_size;
if (hfunc)
*hfunc = ETH_RSS_HASH_TOP;
if (!p)
return 0;
while (n--)
p[n] = pi->rss[n];
return 0;
}
static int set_rss_table(struct net_device *dev, const u32 *p, const u8 *key,
const u8 hfunc)
{
unsigned int i;
struct port_info *pi = netdev_priv(dev);
/* We require at least one supported parameter to be changed and no
* change in any of the unsupported parameters
*/
if (key ||
(hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
return -EOPNOTSUPP;
if (!p)
return 0;
/* Interface must be brought up atleast once */
if (pi->adapter->flags & FULL_INIT_DONE) {
for (i = 0; i < pi->rss_size; i++)
pi->rss[i] = p[i];
return cxgb4_write_rss(pi, pi->rss);
}
return -EPERM;
}
static int get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info,
u32 *rules)
{
const struct port_info *pi = netdev_priv(dev);
switch (info->cmd) {
case ETHTOOL_GRXFH: {
unsigned int v = pi->rss_mode;
info->data = 0;
switch (info->flow_type) {
case TCP_V4_FLOW:
if (v & FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN_F)
info->data = RXH_IP_SRC | RXH_IP_DST |
RXH_L4_B_0_1 | RXH_L4_B_2_3;
else if (v & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN_F)
info->data = RXH_IP_SRC | RXH_IP_DST;
break;
case UDP_V4_FLOW:
if ((v & FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN_F) &&
(v & FW_RSS_VI_CONFIG_CMD_UDPEN_F))
info->data = RXH_IP_SRC | RXH_IP_DST |
RXH_L4_B_0_1 | RXH_L4_B_2_3;
else if (v & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN_F)
info->data = RXH_IP_SRC | RXH_IP_DST;
break;
case SCTP_V4_FLOW:
case AH_ESP_V4_FLOW:
case IPV4_FLOW:
if (v & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN_F)
info->data = RXH_IP_SRC | RXH_IP_DST;
break;
case TCP_V6_FLOW:
if (v & FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN_F)
info->data = RXH_IP_SRC | RXH_IP_DST |
RXH_L4_B_0_1 | RXH_L4_B_2_3;
else if (v & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN_F)
info->data = RXH_IP_SRC | RXH_IP_DST;
break;
case UDP_V6_FLOW:
if ((v & FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN_F) &&
(v & FW_RSS_VI_CONFIG_CMD_UDPEN_F))
info->data = RXH_IP_SRC | RXH_IP_DST |
RXH_L4_B_0_1 | RXH_L4_B_2_3;
else if (v & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN_F)
info->data = RXH_IP_SRC | RXH_IP_DST;
break;
case SCTP_V6_FLOW:
case AH_ESP_V6_FLOW:
case IPV6_FLOW:
if (v & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN_F)
info->data = RXH_IP_SRC | RXH_IP_DST;
break;
}
return 0;
}
case ETHTOOL_GRXRINGS:
info->data = pi->nqsets;
return 0;
}
return -EOPNOTSUPP;
}
static const struct ethtool_ops cxgb_ethtool_ops = {
.get_link_ksettings = get_link_ksettings,
.set_link_ksettings = set_link_ksettings,
.get_drvinfo = get_drvinfo,
.get_msglevel = get_msglevel,
.set_msglevel = set_msglevel,
.get_ringparam = get_sge_param,
.set_ringparam = set_sge_param,
.get_coalesce = get_coalesce,
.set_coalesce = set_coalesce,
.get_eeprom_len = get_eeprom_len,
.get_eeprom = get_eeprom,
.set_eeprom = set_eeprom,
.get_pauseparam = get_pauseparam,
.set_pauseparam = set_pauseparam,
.get_link = ethtool_op_get_link,
.get_strings = get_strings,
.set_phys_id = identify_port,
.nway_reset = restart_autoneg,
.get_sset_count = get_sset_count,
.get_ethtool_stats = get_stats,
.get_regs_len = get_regs_len,
.get_regs = get_regs,
.get_rxnfc = get_rxnfc,
.get_rxfh_indir_size = get_rss_table_size,
.get_rxfh = get_rss_table,
.set_rxfh = set_rss_table,
.flash_device = set_flash,
.get_ts_info = get_ts_info
};
void cxgb4_set_ethtool_ops(struct net_device *netdev)
{
netdev->ethtool_ops = &cxgb_ethtool_ops;
}
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