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linux_dsm_epyc7002/drivers/net/ethernet/intel/ice/ice_ethtool.c
Chinh Cao 48cb27f2fd ice: Implement handlers for ethtool PHY/link operations 
This patch implements handlers for ethtool get_link_ksettings and
set_link_ksettings. Helper functions use by these handlers are also
introduced in this patch.

Signed-off-by: Chinh Cao <chinh.t.cao@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-28 10:48:26 -07:00

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// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2018, Intel Corporation. */
/* ethtool support for ice */
#include "ice.h"
struct ice_stats {
char stat_string[ETH_GSTRING_LEN];
int sizeof_stat;
int stat_offset;
};
#define ICE_STAT(_type, _name, _stat) { \
.stat_string = _name, \
.sizeof_stat = FIELD_SIZEOF(_type, _stat), \
.stat_offset = offsetof(_type, _stat) \
}
#define ICE_VSI_STAT(_name, _stat) \
ICE_STAT(struct ice_vsi, _name, _stat)
#define ICE_PF_STAT(_name, _stat) \
ICE_STAT(struct ice_pf, _name, _stat)
static int ice_q_stats_len(struct net_device *netdev)
{
struct ice_netdev_priv *np = netdev_priv(netdev);
return ((np->vsi->alloc_txq + np->vsi->alloc_rxq) *
(sizeof(struct ice_q_stats) / sizeof(u64)));
}
#define ICE_PF_STATS_LEN ARRAY_SIZE(ice_gstrings_pf_stats)
#define ICE_VSI_STATS_LEN ARRAY_SIZE(ice_gstrings_vsi_stats)
#define ICE_ALL_STATS_LEN(n) (ICE_PF_STATS_LEN + ICE_VSI_STATS_LEN + \
ice_q_stats_len(n))
static const struct ice_stats ice_gstrings_vsi_stats[] = {
ICE_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
ICE_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
ICE_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
ICE_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
ICE_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
ICE_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
ICE_VSI_STAT("tx_bytes", eth_stats.tx_bytes),
ICE_VSI_STAT("rx_bytes", eth_stats.rx_bytes),
ICE_VSI_STAT("rx_discards", eth_stats.rx_discards),
ICE_VSI_STAT("tx_errors", eth_stats.tx_errors),
ICE_VSI_STAT("tx_linearize", tx_linearize),
ICE_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
ICE_VSI_STAT("rx_alloc_fail", rx_buf_failed),
ICE_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
};
/* These PF_STATs might look like duplicates of some NETDEV_STATs,
* but they aren't. This device is capable of supporting multiple
* VSIs/netdevs on a single PF. The NETDEV_STATs are for individual
* netdevs whereas the PF_STATs are for the physical function that's
* hosting these netdevs.
*
* The PF_STATs are appended to the netdev stats only when ethtool -S
* is queried on the base PF netdev.
*/
static struct ice_stats ice_gstrings_pf_stats[] = {
ICE_PF_STAT("tx_bytes", stats.eth.tx_bytes),
ICE_PF_STAT("rx_bytes", stats.eth.rx_bytes),
ICE_PF_STAT("tx_unicast", stats.eth.tx_unicast),
ICE_PF_STAT("rx_unicast", stats.eth.rx_unicast),
ICE_PF_STAT("tx_multicast", stats.eth.tx_multicast),
ICE_PF_STAT("rx_multicast", stats.eth.rx_multicast),
ICE_PF_STAT("tx_broadcast", stats.eth.tx_broadcast),
ICE_PF_STAT("rx_broadcast", stats.eth.rx_broadcast),
ICE_PF_STAT("tx_errors", stats.eth.tx_errors),
ICE_PF_STAT("tx_size_64", stats.tx_size_64),
ICE_PF_STAT("rx_size_64", stats.rx_size_64),
ICE_PF_STAT("tx_size_127", stats.tx_size_127),
ICE_PF_STAT("rx_size_127", stats.rx_size_127),
ICE_PF_STAT("tx_size_255", stats.tx_size_255),
ICE_PF_STAT("rx_size_255", stats.rx_size_255),
ICE_PF_STAT("tx_size_511", stats.tx_size_511),
ICE_PF_STAT("rx_size_511", stats.rx_size_511),
ICE_PF_STAT("tx_size_1023", stats.tx_size_1023),
ICE_PF_STAT("rx_size_1023", stats.rx_size_1023),
ICE_PF_STAT("tx_size_1522", stats.tx_size_1522),
ICE_PF_STAT("rx_size_1522", stats.rx_size_1522),
ICE_PF_STAT("tx_size_big", stats.tx_size_big),
ICE_PF_STAT("rx_size_big", stats.rx_size_big),
ICE_PF_STAT("link_xon_tx", stats.link_xon_tx),
ICE_PF_STAT("link_xon_rx", stats.link_xon_rx),
ICE_PF_STAT("link_xoff_tx", stats.link_xoff_tx),
ICE_PF_STAT("link_xoff_rx", stats.link_xoff_rx),
ICE_PF_STAT("tx_dropped_link_down", stats.tx_dropped_link_down),
ICE_PF_STAT("rx_undersize", stats.rx_undersize),
ICE_PF_STAT("rx_fragments", stats.rx_fragments),
ICE_PF_STAT("rx_oversize", stats.rx_oversize),
ICE_PF_STAT("rx_jabber", stats.rx_jabber),
ICE_PF_STAT("rx_csum_bad", hw_csum_rx_error),
ICE_PF_STAT("rx_length_errors", stats.rx_len_errors),
ICE_PF_STAT("rx_dropped", stats.eth.rx_discards),
ICE_PF_STAT("rx_crc_errors", stats.crc_errors),
ICE_PF_STAT("illegal_bytes", stats.illegal_bytes),
ICE_PF_STAT("mac_local_faults", stats.mac_local_faults),
ICE_PF_STAT("mac_remote_faults", stats.mac_remote_faults),
};
static u32 ice_regs_dump_list[] = {
PFGEN_STATE,
PRTGEN_STATUS,
QRX_CTRL(0),
QINT_TQCTL(0),
QINT_RQCTL(0),
PFINT_OICR_ENA,
QRX_ITR(0),
};
/**
* ice_nvm_version_str - format the NVM version strings
* @hw: ptr to the hardware info
*/
static char *ice_nvm_version_str(struct ice_hw *hw)
{
static char buf[ICE_ETHTOOL_FWVER_LEN];
u8 ver, patch;
u32 full_ver;
u16 build;
full_ver = hw->nvm.oem_ver;
ver = (u8)((full_ver & ICE_OEM_VER_MASK) >> ICE_OEM_VER_SHIFT);
build = (u16)((full_ver & ICE_OEM_VER_BUILD_MASK) >>
ICE_OEM_VER_BUILD_SHIFT);
patch = (u8)(full_ver & ICE_OEM_VER_PATCH_MASK);
snprintf(buf, sizeof(buf), "%x.%02x 0x%x %d.%d.%d",
(hw->nvm.ver & ICE_NVM_VER_HI_MASK) >> ICE_NVM_VER_HI_SHIFT,
(hw->nvm.ver & ICE_NVM_VER_LO_MASK) >> ICE_NVM_VER_LO_SHIFT,
hw->nvm.eetrack, ver, build, patch);
return buf;
}
static void
ice_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
{
struct ice_netdev_priv *np = netdev_priv(netdev);
struct ice_vsi *vsi = np->vsi;
struct ice_pf *pf = vsi->back;
strlcpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
strlcpy(drvinfo->version, ice_drv_ver, sizeof(drvinfo->version));
strlcpy(drvinfo->fw_version, ice_nvm_version_str(&pf->hw),
sizeof(drvinfo->fw_version));
strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
sizeof(drvinfo->bus_info));
}
static int ice_get_regs_len(struct net_device __always_unused *netdev)
{
return sizeof(ice_regs_dump_list);
}
static void
ice_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
{
struct ice_netdev_priv *np = netdev_priv(netdev);
struct ice_pf *pf = np->vsi->back;
struct ice_hw *hw = &pf->hw;
u32 *regs_buf = (u32 *)p;
int i;
regs->version = 1;
for (i = 0; i < ARRAY_SIZE(ice_regs_dump_list); ++i)
regs_buf[i] = rd32(hw, ice_regs_dump_list[i]);
}
static u32 ice_get_msglevel(struct net_device *netdev)
{
struct ice_netdev_priv *np = netdev_priv(netdev);
struct ice_pf *pf = np->vsi->back;
#ifndef CONFIG_DYNAMIC_DEBUG
if (pf->hw.debug_mask)
netdev_info(netdev, "hw debug_mask: 0x%llX\n",
pf->hw.debug_mask);
#endif /* !CONFIG_DYNAMIC_DEBUG */
return pf->msg_enable;
}
static void ice_set_msglevel(struct net_device *netdev, u32 data)
{
struct ice_netdev_priv *np = netdev_priv(netdev);
struct ice_pf *pf = np->vsi->back;
#ifndef CONFIG_DYNAMIC_DEBUG
if (ICE_DBG_USER & data)
pf->hw.debug_mask = data;
else
pf->msg_enable = data;
#else
pf->msg_enable = data;
#endif /* !CONFIG_DYNAMIC_DEBUG */
}
static void ice_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
{
struct ice_netdev_priv *np = netdev_priv(netdev);
struct ice_vsi *vsi = np->vsi;
char *p = (char *)data;
unsigned int i;
switch (stringset) {
case ETH_SS_STATS:
for (i = 0; i < ICE_VSI_STATS_LEN; i++) {
snprintf(p, ETH_GSTRING_LEN, "%s",
ice_gstrings_vsi_stats[i].stat_string);
p += ETH_GSTRING_LEN;
}
ice_for_each_alloc_txq(vsi, i) {
snprintf(p, ETH_GSTRING_LEN,
"tx-queue-%u.tx_packets", i);
p += ETH_GSTRING_LEN;
snprintf(p, ETH_GSTRING_LEN, "tx-queue-%u.tx_bytes", i);
p += ETH_GSTRING_LEN;
}
ice_for_each_alloc_rxq(vsi, i) {
snprintf(p, ETH_GSTRING_LEN,
"rx-queue-%u.rx_packets", i);
p += ETH_GSTRING_LEN;
snprintf(p, ETH_GSTRING_LEN, "rx-queue-%u.rx_bytes", i);
p += ETH_GSTRING_LEN;
}
if (vsi->type != ICE_VSI_PF)
return;
for (i = 0; i < ICE_PF_STATS_LEN; i++) {
snprintf(p, ETH_GSTRING_LEN, "port.%s",
ice_gstrings_pf_stats[i].stat_string);
p += ETH_GSTRING_LEN;
}
break;
default:
break;
}
}
static int ice_get_sset_count(struct net_device *netdev, int sset)
{
switch (sset) {
case ETH_SS_STATS:
/* The number (and order) of strings reported *must* remain
* constant for a given netdevice. This function must not
* report a different number based on run time parameters
* (such as the number of queues in use, or the setting of
* a private ethtool flag). This is due to the nature of the
* ethtool stats API.
*
* User space programs such as ethtool must make 3 separate
* ioctl requests, one for size, one for the strings, and
* finally one for the stats. Since these cross into
* user space, changes to the number or size could result in
* undefined memory access or incorrect string<->value
* correlations for statistics.
*
* Even if it appears to be safe, changes to the size or
* order of strings will suffer from race conditions and are
* not safe.
*/
return ICE_ALL_STATS_LEN(netdev);
default:
return -EOPNOTSUPP;
}
}
static void
ice_get_ethtool_stats(struct net_device *netdev,
struct ethtool_stats __always_unused *stats, u64 *data)
{
struct ice_netdev_priv *np = netdev_priv(netdev);
struct ice_vsi *vsi = np->vsi;
struct ice_pf *pf = vsi->back;
struct ice_ring *ring;
unsigned int j = 0;
int i = 0;
char *p;
for (j = 0; j < ICE_VSI_STATS_LEN; j++) {
p = (char *)vsi + ice_gstrings_vsi_stats[j].stat_offset;
data[i++] = (ice_gstrings_vsi_stats[j].sizeof_stat ==
sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
}
/* populate per queue stats */
rcu_read_lock();
ice_for_each_alloc_txq(vsi, j) {
ring = READ_ONCE(vsi->tx_rings[j]);
if (ring) {
data[i++] = ring->stats.pkts;
data[i++] = ring->stats.bytes;
} else {
data[i++] = 0;
data[i++] = 0;
}
}
ice_for_each_alloc_rxq(vsi, j) {
ring = READ_ONCE(vsi->rx_rings[j]);
if (ring) {
data[i++] = ring->stats.pkts;
data[i++] = ring->stats.bytes;
} else {
data[i++] = 0;
data[i++] = 0;
}
}
rcu_read_unlock();
if (vsi->type != ICE_VSI_PF)
return;
for (j = 0; j < ICE_PF_STATS_LEN; j++) {
p = (char *)pf + ice_gstrings_pf_stats[j].stat_offset;
data[i++] = (ice_gstrings_pf_stats[j].sizeof_stat ==
sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
}
}
/**
* ice_phy_type_to_ethtool - convert the phy_types to ethtool link modes
* @netdev: network interface device structure
* @ks: ethtool link ksettings struct to fill out
*/
static void ice_phy_type_to_ethtool(struct net_device *netdev,
struct ethtool_link_ksettings *ks)
{
struct ice_netdev_priv *np = netdev_priv(netdev);
struct ice_link_status *hw_link_info;
struct ice_vsi *vsi = np->vsi;
u64 phy_types_low;
hw_link_info = &vsi->port_info->phy.link_info;
phy_types_low = vsi->port_info->phy.phy_type_low;
ethtool_link_ksettings_zero_link_mode(ks, supported);
ethtool_link_ksettings_zero_link_mode(ks, advertising);
if (phy_types_low & ICE_PHY_TYPE_LOW_100BASE_TX ||
phy_types_low & ICE_PHY_TYPE_LOW_100M_SGMII) {
ethtool_link_ksettings_add_link_mode(ks, supported,
100baseT_Full);
if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100MB)
ethtool_link_ksettings_add_link_mode(ks, advertising,
100baseT_Full);
}
if (phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_T ||
phy_types_low & ICE_PHY_TYPE_LOW_1G_SGMII) {
ethtool_link_ksettings_add_link_mode(ks, supported,
1000baseT_Full);
if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_1000MB)
ethtool_link_ksettings_add_link_mode(ks, advertising,
1000baseT_Full);
}
if (phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_KX) {
ethtool_link_ksettings_add_link_mode(ks, supported,
1000baseKX_Full);
if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_1000MB)
ethtool_link_ksettings_add_link_mode(ks, advertising,
1000baseKX_Full);
}
if (phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_SX ||
phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_LX) {
ethtool_link_ksettings_add_link_mode(ks, supported,
1000baseX_Full);
if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_1000MB)
ethtool_link_ksettings_add_link_mode(ks, advertising,
1000baseX_Full);
}
if (phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_T) {
ethtool_link_ksettings_add_link_mode(ks, supported,
2500baseT_Full);
if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_2500MB)
ethtool_link_ksettings_add_link_mode(ks, advertising,
2500baseT_Full);
}
if (phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_X ||
phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_KX) {
ethtool_link_ksettings_add_link_mode(ks, supported,
2500baseX_Full);
if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_2500MB)
ethtool_link_ksettings_add_link_mode(ks, advertising,
2500baseX_Full);
}
if (phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_T ||
phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_KR) {
ethtool_link_ksettings_add_link_mode(ks, supported,
5000baseT_Full);
if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_5GB)
ethtool_link_ksettings_add_link_mode(ks, advertising,
5000baseT_Full);
}
if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_T ||
phy_types_low & ICE_PHY_TYPE_LOW_10G_SFI_DA ||
phy_types_low & ICE_PHY_TYPE_LOW_10G_SFI_AOC_ACC ||
phy_types_low & ICE_PHY_TYPE_LOW_10G_SFI_C2C) {
ethtool_link_ksettings_add_link_mode(ks, supported,
10000baseT_Full);
if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB)
ethtool_link_ksettings_add_link_mode(ks, advertising,
10000baseT_Full);
}
if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_KR_CR1) {
ethtool_link_ksettings_add_link_mode(ks, supported,
10000baseKR_Full);
if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB)
ethtool_link_ksettings_add_link_mode(ks, advertising,
10000baseKR_Full);
}
if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_SR) {
ethtool_link_ksettings_add_link_mode(ks, supported,
10000baseSR_Full);
if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB)
ethtool_link_ksettings_add_link_mode(ks, advertising,
10000baseSR_Full);
}
if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_LR) {
ethtool_link_ksettings_add_link_mode(ks, supported,
10000baseLR_Full);
if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB)
ethtool_link_ksettings_add_link_mode(ks, advertising,
10000baseLR_Full);
}
if (phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_T ||
phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR ||
phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR_S ||
phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR1 ||
phy_types_low & ICE_PHY_TYPE_LOW_25G_AUI_AOC_ACC ||
phy_types_low & ICE_PHY_TYPE_LOW_25G_AUI_C2C) {
ethtool_link_ksettings_add_link_mode(ks, supported,
25000baseCR_Full);
if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_25GB)
ethtool_link_ksettings_add_link_mode(ks, advertising,
25000baseCR_Full);
}
if (phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_SR ||
phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_LR) {
ethtool_link_ksettings_add_link_mode(ks, supported,
25000baseSR_Full);
if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_25GB)
ethtool_link_ksettings_add_link_mode(ks, advertising,
25000baseSR_Full);
}
if (phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR ||
phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR_S ||
phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR1) {
ethtool_link_ksettings_add_link_mode(ks, supported,
25000baseKR_Full);
if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_25GB)
ethtool_link_ksettings_add_link_mode(ks, advertising,
25000baseKR_Full);
}
if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_KR4) {
ethtool_link_ksettings_add_link_mode(ks, supported,
40000baseKR4_Full);
if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB)
ethtool_link_ksettings_add_link_mode(ks, advertising,
40000baseKR4_Full);
}
if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_CR4 ||
phy_types_low & ICE_PHY_TYPE_LOW_40G_XLAUI_AOC_ACC ||
phy_types_low & ICE_PHY_TYPE_LOW_40G_XLAUI) {
ethtool_link_ksettings_add_link_mode(ks, supported,
40000baseCR4_Full);
if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB)
ethtool_link_ksettings_add_link_mode(ks, advertising,
40000baseCR4_Full);
}
if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_SR4) {
ethtool_link_ksettings_add_link_mode(ks, supported,
40000baseSR4_Full);
if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB)
ethtool_link_ksettings_add_link_mode(ks, advertising,
40000baseSR4_Full);
}
if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_LR4) {
ethtool_link_ksettings_add_link_mode(ks, supported,
40000baseLR4_Full);
if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB)
ethtool_link_ksettings_add_link_mode(ks, advertising,
40000baseLR4_Full);
}
/* Autoneg PHY types */
if (phy_types_low & ICE_PHY_TYPE_LOW_100BASE_TX ||
phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_T ||
phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_KX ||
phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_T ||
phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_KX ||
phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_T ||
phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_KR ||
phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_T ||
phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_KR_CR1 ||
phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_T ||
phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR ||
phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR_S ||
phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR1 ||
phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR ||
phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR_S ||
phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR1 ||
phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_CR4 ||
phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_KR4) {
ethtool_link_ksettings_add_link_mode(ks, supported,
Autoneg);
ethtool_link_ksettings_add_link_mode(ks, advertising,
Autoneg);
}
}
#define TEST_SET_BITS_TIMEOUT 50
#define TEST_SET_BITS_SLEEP_MAX 2000
#define TEST_SET_BITS_SLEEP_MIN 1000
/**
* ice_get_settings_link_up - Get Link settings for when link is up
* @ks: ethtool ksettings to fill in
* @netdev: network interface device structure
*/
static void ice_get_settings_link_up(struct ethtool_link_ksettings *ks,
struct net_device *netdev)
{
struct ice_netdev_priv *np = netdev_priv(netdev);
struct ethtool_link_ksettings cap_ksettings;
struct ice_link_status *link_info;
struct ice_vsi *vsi = np->vsi;
bool unrecog_phy_low = false;
link_info = &vsi->port_info->phy.link_info;
/* Initialize supported and advertised settings based on phy settings */
switch (link_info->phy_type_low) {
case ICE_PHY_TYPE_LOW_100BASE_TX:
ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, supported,
100baseT_Full);
ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, advertising,
100baseT_Full);
break;
case ICE_PHY_TYPE_LOW_100M_SGMII:
ethtool_link_ksettings_add_link_mode(ks, supported,
100baseT_Full);
break;
case ICE_PHY_TYPE_LOW_1000BASE_T:
ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, supported,
1000baseT_Full);
ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, advertising,
1000baseT_Full);
break;
case ICE_PHY_TYPE_LOW_1G_SGMII:
ethtool_link_ksettings_add_link_mode(ks, supported,
1000baseT_Full);
break;
case ICE_PHY_TYPE_LOW_1000BASE_SX:
case ICE_PHY_TYPE_LOW_1000BASE_LX:
ethtool_link_ksettings_add_link_mode(ks, supported,
1000baseX_Full);
break;
case ICE_PHY_TYPE_LOW_1000BASE_KX:
ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, supported,
1000baseKX_Full);
ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, advertising,
1000baseKX_Full);
break;
case ICE_PHY_TYPE_LOW_2500BASE_T:
ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, supported,
2500baseT_Full);
ethtool_link_ksettings_add_link_mode(ks, advertising,
2500baseT_Full);
break;
case ICE_PHY_TYPE_LOW_2500BASE_X:
ethtool_link_ksettings_add_link_mode(ks, supported,
2500baseX_Full);
break;
case ICE_PHY_TYPE_LOW_2500BASE_KX:
ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, supported,
2500baseX_Full);
ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, advertising,
2500baseX_Full);
break;
case ICE_PHY_TYPE_LOW_5GBASE_T:
case ICE_PHY_TYPE_LOW_5GBASE_KR:
ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, supported,
5000baseT_Full);
ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, advertising,
5000baseT_Full);
break;
case ICE_PHY_TYPE_LOW_10GBASE_T:
ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, supported,
10000baseT_Full);
ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, advertising,
10000baseT_Full);
break;
case ICE_PHY_TYPE_LOW_10G_SFI_DA:
case ICE_PHY_TYPE_LOW_10G_SFI_AOC_ACC:
case ICE_PHY_TYPE_LOW_10G_SFI_C2C:
ethtool_link_ksettings_add_link_mode(ks, supported,
10000baseT_Full);
break;
case ICE_PHY_TYPE_LOW_10GBASE_SR:
ethtool_link_ksettings_add_link_mode(ks, supported,
10000baseSR_Full);
break;
case ICE_PHY_TYPE_LOW_10GBASE_LR:
ethtool_link_ksettings_add_link_mode(ks, supported,
10000baseLR_Full);
break;
case ICE_PHY_TYPE_LOW_10GBASE_KR_CR1:
ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, supported,
10000baseKR_Full);
ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, advertising,
10000baseKR_Full);
break;
case ICE_PHY_TYPE_LOW_25GBASE_T:
case ICE_PHY_TYPE_LOW_25GBASE_CR:
case ICE_PHY_TYPE_LOW_25GBASE_CR_S:
case ICE_PHY_TYPE_LOW_25GBASE_CR1:
ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, supported,
25000baseCR_Full);
ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, advertising,
25000baseCR_Full);
break;
case ICE_PHY_TYPE_LOW_25G_AUI_AOC_ACC:
ethtool_link_ksettings_add_link_mode(ks, supported,
25000baseCR_Full);
break;
case ICE_PHY_TYPE_LOW_25GBASE_SR:
case ICE_PHY_TYPE_LOW_25GBASE_LR:
ethtool_link_ksettings_add_link_mode(ks, supported,
25000baseSR_Full);
break;
case ICE_PHY_TYPE_LOW_25GBASE_KR:
case ICE_PHY_TYPE_LOW_25GBASE_KR1:
case ICE_PHY_TYPE_LOW_25GBASE_KR_S:
ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, supported,
25000baseKR_Full);
ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, advertising,
25000baseKR_Full);
break;
case ICE_PHY_TYPE_LOW_40GBASE_CR4:
ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, supported,
40000baseCR4_Full);
ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, advertising,
40000baseCR4_Full);
break;
case ICE_PHY_TYPE_LOW_40G_XLAUI_AOC_ACC:
case ICE_PHY_TYPE_LOW_40G_XLAUI:
ethtool_link_ksettings_add_link_mode(ks, supported,
40000baseCR4_Full);
break;
case ICE_PHY_TYPE_LOW_40GBASE_SR4:
ethtool_link_ksettings_add_link_mode(ks, supported,
40000baseSR4_Full);
break;
case ICE_PHY_TYPE_LOW_40GBASE_LR4:
ethtool_link_ksettings_add_link_mode(ks, supported,
40000baseLR4_Full);
break;
case ICE_PHY_TYPE_LOW_40GBASE_KR4:
ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, supported,
40000baseKR4_Full);
ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, advertising,
40000baseKR4_Full);
break;
default:
unrecog_phy_low = true;
}
if (unrecog_phy_low) {
/* if we got here and link is up something bad is afoot */
netdev_info(netdev, "WARNING: Unrecognized PHY_Low (0x%llx).\n",
(u64)link_info->phy_type_low);
}
/* Now that we've worked out everything that could be supported by the
* current PHY type, get what is supported by the NVM and intersect
* them to get what is truly supported
*/
memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings));
ice_phy_type_to_ethtool(netdev, &cap_ksettings);
ethtool_intersect_link_masks(ks, &cap_ksettings);
switch (link_info->link_speed) {
case ICE_AQ_LINK_SPEED_40GB:
ks->base.speed = SPEED_40000;
break;
case ICE_AQ_LINK_SPEED_25GB:
ks->base.speed = SPEED_25000;
break;
case ICE_AQ_LINK_SPEED_20GB:
ks->base.speed = SPEED_20000;
break;
case ICE_AQ_LINK_SPEED_10GB:
ks->base.speed = SPEED_10000;
break;
case ICE_AQ_LINK_SPEED_5GB:
ks->base.speed = SPEED_5000;
break;
case ICE_AQ_LINK_SPEED_2500MB:
ks->base.speed = SPEED_2500;
break;
case ICE_AQ_LINK_SPEED_1000MB:
ks->base.speed = SPEED_1000;
break;
case ICE_AQ_LINK_SPEED_100MB:
ks->base.speed = SPEED_100;
break;
default:
netdev_info(netdev,
"WARNING: Unrecognized link_speed (0x%x).\n",
link_info->link_speed);
break;
}
ks->base.duplex = DUPLEX_FULL;
}
/**
* ice_get_settings_link_down - Get the Link settings when link is down
* @ks: ethtool ksettings to fill in
* @netdev: network interface device structure
*
* Reports link settings that can be determined when link is down
*/
static void
ice_get_settings_link_down(struct ethtool_link_ksettings *ks,
struct net_device __always_unused *netdev)
{
/* link is down and the driver needs to fall back on
* supported phy types to figure out what info to display
*/
ice_phy_type_to_ethtool(netdev, ks);
/* With no link, speed and duplex are unknown */
ks->base.speed = SPEED_UNKNOWN;
ks->base.duplex = DUPLEX_UNKNOWN;
}
/**
* ice_get_link_ksettings - Get Link Speed and Duplex settings
* @netdev: network interface device structure
* @ks: ethtool ksettings
*
* Reports speed/duplex settings based on media_type
*/
static int ice_get_link_ksettings(struct net_device *netdev,
struct ethtool_link_ksettings *ks)
{
struct ice_netdev_priv *np = netdev_priv(netdev);
struct ice_link_status *hw_link_info;
struct ice_vsi *vsi = np->vsi;
ethtool_link_ksettings_zero_link_mode(ks, supported);
ethtool_link_ksettings_zero_link_mode(ks, advertising);
hw_link_info = &vsi->port_info->phy.link_info;
/* set speed and duplex */
if (hw_link_info->link_info & ICE_AQ_LINK_UP)
ice_get_settings_link_up(ks, netdev);
else
ice_get_settings_link_down(ks, netdev);
/* set autoneg settings */
ks->base.autoneg = (hw_link_info->an_info & ICE_AQ_AN_COMPLETED) ?
AUTONEG_ENABLE : AUTONEG_DISABLE;
/* set media type settings */
switch (vsi->port_info->phy.media_type) {
case ICE_MEDIA_FIBER:
ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
ks->base.port = PORT_FIBRE;
break;
case ICE_MEDIA_BASET:
ethtool_link_ksettings_add_link_mode(ks, supported, TP);
ethtool_link_ksettings_add_link_mode(ks, advertising, TP);
ks->base.port = PORT_TP;
break;
case ICE_MEDIA_BACKPLANE:
ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, supported, Backplane);
ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
ethtool_link_ksettings_add_link_mode(ks, advertising,
Backplane);
ks->base.port = PORT_NONE;
break;
case ICE_MEDIA_DA:
ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
ks->base.port = PORT_DA;
break;
default:
ks->base.port = PORT_OTHER;
break;
}
/* flow control is symmetric and always supported */
ethtool_link_ksettings_add_link_mode(ks, supported, Pause);
switch (vsi->port_info->fc.req_mode) {
case ICE_FC_FULL:
ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
break;
case ICE_FC_TX_PAUSE:
ethtool_link_ksettings_add_link_mode(ks, advertising,
Asym_Pause);
break;
case ICE_FC_RX_PAUSE:
ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
ethtool_link_ksettings_add_link_mode(ks, advertising,
Asym_Pause);
break;
case ICE_FC_PFC:
default:
ethtool_link_ksettings_del_link_mode(ks, advertising, Pause);
ethtool_link_ksettings_del_link_mode(ks, advertising,
Asym_Pause);
break;
}
return 0;
}
/**
* ice_ksettings_find_adv_link_speed - Find advertising link speed
* @ks: ethtool ksettings
*/
static u16
ice_ksettings_find_adv_link_speed(const struct ethtool_link_ksettings *ks)
{
u16 adv_link_speed = 0;
if (ethtool_link_ksettings_test_link_mode(ks, advertising,
100baseT_Full))
adv_link_speed |= ICE_AQ_LINK_SPEED_100MB;
if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1000baseX_Full))
adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB;
if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1000baseT_Full) ||
ethtool_link_ksettings_test_link_mode(ks, advertising,
1000baseKX_Full))
adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB;
if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2500baseT_Full))
adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB;
if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2500baseX_Full))
adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB;
if (ethtool_link_ksettings_test_link_mode(ks, advertising,
5000baseT_Full))
adv_link_speed |= ICE_AQ_LINK_SPEED_5GB;
if (ethtool_link_ksettings_test_link_mode(ks, advertising,
10000baseT_Full) ||
ethtool_link_ksettings_test_link_mode(ks, advertising,
10000baseKR_Full))
adv_link_speed |= ICE_AQ_LINK_SPEED_10GB;
if (ethtool_link_ksettings_test_link_mode(ks, advertising,
10000baseSR_Full) ||
ethtool_link_ksettings_test_link_mode(ks, advertising,
10000baseLR_Full))
adv_link_speed |= ICE_AQ_LINK_SPEED_10GB;
if (ethtool_link_ksettings_test_link_mode(ks, advertising,
25000baseCR_Full) ||
ethtool_link_ksettings_test_link_mode(ks, advertising,
25000baseSR_Full) ||
ethtool_link_ksettings_test_link_mode(ks, advertising,
25000baseKR_Full))
adv_link_speed |= ICE_AQ_LINK_SPEED_25GB;
if (ethtool_link_ksettings_test_link_mode(ks, advertising,
40000baseCR4_Full) ||
ethtool_link_ksettings_test_link_mode(ks, advertising,
40000baseSR4_Full) ||
ethtool_link_ksettings_test_link_mode(ks, advertising,
40000baseLR4_Full) ||
ethtool_link_ksettings_test_link_mode(ks, advertising,
40000baseKR4_Full))
adv_link_speed |= ICE_AQ_LINK_SPEED_40GB;
return adv_link_speed;
}
/**
* ice_setup_autoneg
* @p: port info
* @ks: ethtool_link_ksettings
* @config: configuration that will be sent down to FW
* @autoneg_enabled: autonegotiation is enabled or not
* @autoneg_changed: will there a change in autonegotiation
* @netdev: network interface device structure
*
* Setup PHY autonegotiation feature
*/
static int
ice_setup_autoneg(struct ice_port_info *p, struct ethtool_link_ksettings *ks,
struct ice_aqc_set_phy_cfg_data *config,
u8 autoneg_enabled, u8 *autoneg_changed,
struct net_device *netdev)
{
int err = 0;
*autoneg_changed = 0;
/* Check autoneg */
if (autoneg_enabled == AUTONEG_ENABLE) {
/* If autoneg was not already enabled */
if (!(p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED)) {
/* If autoneg is not supported, return error */
if (!ethtool_link_ksettings_test_link_mode(ks,
supported,
Autoneg)) {
netdev_info(netdev, "Autoneg not supported on this phy.\n");
err = -EINVAL;
} else {
/* Autoneg is allowed to change */
config->caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
*autoneg_changed = 1;
}
}
} else {
/* If autoneg is currently enabled */
if (p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED) {
/* If autoneg is supported 10GBASE_T is the only phy
* that can disable it, so otherwise return error
*/
if (ethtool_link_ksettings_test_link_mode(ks,
supported,
Autoneg)) {
netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
err = -EINVAL;
} else {
/* Autoneg is allowed to change */
config->caps &= ~ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
*autoneg_changed = 1;
}
}
}
return err;
}
/**
* ice_set_link_ksettings - Set Speed and Duplex
* @netdev: network interface device structure
* @ks: ethtool ksettings
*
* Set speed/duplex per media_types advertised/forced
*/
static int ice_set_link_ksettings(struct net_device *netdev,
const struct ethtool_link_ksettings *ks)
{
u8 autoneg, timeout = TEST_SET_BITS_TIMEOUT, lport = 0;
struct ice_netdev_priv *np = netdev_priv(netdev);
struct ethtool_link_ksettings safe_ks, copy_ks;
struct ice_aqc_get_phy_caps_data *abilities;
u16 adv_link_speed, curr_link_speed, idx;
struct ice_aqc_set_phy_cfg_data config;
struct ice_pf *pf = np->vsi->back;
struct ice_port_info *p;
u8 autoneg_changed = 0;
enum ice_status status;
u64 phy_type_low;
int err = 0;
bool linkup;
p = np->vsi->port_info;
if (!p)
return -EOPNOTSUPP;
/* Check if this is lan vsi */
for (idx = 0 ; idx < pf->num_alloc_vsi ; idx++) {
if (pf->vsi[idx]->type == ICE_VSI_PF) {
if (np->vsi != pf->vsi[idx])
return -EOPNOTSUPP;
break;
}
}
if (p->phy.media_type != ICE_MEDIA_BASET &&
p->phy.media_type != ICE_MEDIA_FIBER &&
p->phy.media_type != ICE_MEDIA_BACKPLANE &&
p->phy.media_type != ICE_MEDIA_DA &&
p->phy.link_info.link_info & ICE_AQ_LINK_UP)
return -EOPNOTSUPP;
/* copy the ksettings to copy_ks to avoid modifying the original */
memcpy(&copy_ks, ks, sizeof(struct ethtool_link_ksettings));
/* save autoneg out of ksettings */
autoneg = copy_ks.base.autoneg;
memset(&safe_ks, 0, sizeof(safe_ks));
/* Get link modes supported by hardware.*/
ice_phy_type_to_ethtool(netdev, &safe_ks);
/* and check against modes requested by user.
* Return an error if unsupported mode was set.
*/
if (!bitmap_subset(copy_ks.link_modes.advertising,
safe_ks.link_modes.supported,
__ETHTOOL_LINK_MODE_MASK_NBITS))
return -EINVAL;
/* get our own copy of the bits to check against */
memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings));
safe_ks.base.cmd = copy_ks.base.cmd;
safe_ks.base.link_mode_masks_nwords =
copy_ks.base.link_mode_masks_nwords;
ice_get_link_ksettings(netdev, &safe_ks);
/* set autoneg back to what it currently is */
copy_ks.base.autoneg = safe_ks.base.autoneg;
/* we don't compare the speed */
copy_ks.base.speed = safe_ks.base.speed;
/* If copy_ks.base and safe_ks.base are not the same now, then they are
* trying to set something that we do not support.
*/
if (memcmp(&copy_ks.base, &safe_ks.base,
sizeof(struct ethtool_link_settings)))
return -EOPNOTSUPP;
while (test_and_set_bit(__ICE_CFG_BUSY, pf->state)) {
timeout--;
if (!timeout)
return -EBUSY;
usleep_range(TEST_SET_BITS_SLEEP_MIN, TEST_SET_BITS_SLEEP_MAX);
}
abilities = devm_kzalloc(&pf->pdev->dev, sizeof(*abilities),
GFP_KERNEL);
if (!abilities)
return -ENOMEM;
/* Get the current phy config */
status = ice_aq_get_phy_caps(p, false, ICE_AQC_REPORT_SW_CFG, abilities,
NULL);
if (status) {
err = -EAGAIN;
goto done;
}
/* Copy abilities to config in case autoneg is not set below */
memset(&config, 0, sizeof(struct ice_aqc_set_phy_cfg_data));
config.caps = abilities->caps & ~ICE_AQC_PHY_AN_MODE;
if (abilities->caps & ICE_AQC_PHY_AN_MODE)
config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
/* Check autoneg */
err = ice_setup_autoneg(p, &safe_ks, &config, autoneg, &autoneg_changed,
netdev);
if (err)
goto done;
/* Call to get the current link speed */
p->phy.get_link_info = true;
status = ice_get_link_status(p, &linkup);
if (status) {
err = -EAGAIN;
goto done;
}
curr_link_speed = p->phy.link_info.link_speed;
adv_link_speed = ice_ksettings_find_adv_link_speed(ks);
/* If speed didn't get set, set it to what it currently is.
* This is needed because if advertise is 0 (as it is when autoneg
* is disabled) then speed won't get set.
*/
if (!adv_link_speed)
adv_link_speed = curr_link_speed;
/* Convert the advertise link speeds to their corresponded PHY_TYPE */
ice_update_phy_type(&phy_type_low, adv_link_speed);
if (!autoneg_changed && adv_link_speed == curr_link_speed) {
netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
goto done;
}
/* copy over the rest of the abilities */
config.low_power_ctrl = abilities->low_power_ctrl;
config.eee_cap = abilities->eee_cap;
config.eeer_value = abilities->eeer_value;
config.link_fec_opt = abilities->link_fec_options;
/* save the requested speeds */
p->phy.link_info.req_speeds = adv_link_speed;
/* set link and auto negotiation so changes take effect */
config.caps |= ICE_AQ_PHY_ENA_LINK;
if (phy_type_low) {
config.phy_type_low = cpu_to_le64(phy_type_low) &
abilities->phy_type_low;
} else {
err = -EAGAIN;
netdev_info(netdev, "Nothing changed. No PHY_TYPE is corresponded to advertised link speed.\n");
goto done;
}
/* If link is up put link down */
if (p->phy.link_info.link_info & ICE_AQ_LINK_UP) {
/* Tell the OS link is going down, the link will go
* back up when fw says it is ready asynchronously
*/
ice_print_link_msg(np->vsi, false);
netif_carrier_off(netdev);
netif_tx_stop_all_queues(netdev);
}
/* make the aq call */
status = ice_aq_set_phy_cfg(&pf->hw, lport, &config, NULL);
if (status) {
netdev_info(netdev, "Set phy config failed,\n");
err = -EAGAIN;
}
done:
devm_kfree(&pf->pdev->dev, abilities);
clear_bit(__ICE_CFG_BUSY, pf->state);
return err;
}
/**
* ice_get_rxnfc - command to get RX flow classification rules
* @netdev: network interface device structure
* @cmd: ethtool rxnfc command
* @rule_locs: buffer to rturn Rx flow classification rules
*
* Returns Success if the command is supported.
*/
static int ice_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
u32 __always_unused *rule_locs)
{
struct ice_netdev_priv *np = netdev_priv(netdev);
struct ice_vsi *vsi = np->vsi;
int ret = -EOPNOTSUPP;
switch (cmd->cmd) {
case ETHTOOL_GRXRINGS:
cmd->data = vsi->rss_size;
ret = 0;
break;
default:
break;
}
return ret;
}
static void
ice_get_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
{
struct ice_netdev_priv *np = netdev_priv(netdev);
struct ice_vsi *vsi = np->vsi;
ring->rx_max_pending = ICE_MAX_NUM_DESC;
ring->tx_max_pending = ICE_MAX_NUM_DESC;
ring->rx_pending = vsi->rx_rings[0]->count;
ring->tx_pending = vsi->tx_rings[0]->count;
ring->rx_mini_pending = ICE_MIN_NUM_DESC;
ring->rx_mini_max_pending = 0;
ring->rx_jumbo_max_pending = 0;
ring->rx_jumbo_pending = 0;
}
static int
ice_set_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
{
struct ice_ring *tx_rings = NULL, *rx_rings = NULL;
struct ice_netdev_priv *np = netdev_priv(netdev);
struct ice_vsi *vsi = np->vsi;
struct ice_pf *pf = vsi->back;
int i, timeout = 50, err = 0;
u32 new_rx_cnt, new_tx_cnt;
if (ring->tx_pending > ICE_MAX_NUM_DESC ||
ring->tx_pending < ICE_MIN_NUM_DESC ||
ring->rx_pending > ICE_MAX_NUM_DESC ||
ring->rx_pending < ICE_MIN_NUM_DESC) {
netdev_err(netdev, "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
ring->tx_pending, ring->rx_pending,
ICE_MIN_NUM_DESC, ICE_MAX_NUM_DESC);
return -EINVAL;
}
new_tx_cnt = ALIGN(ring->tx_pending, ICE_REQ_DESC_MULTIPLE);
new_rx_cnt = ALIGN(ring->rx_pending, ICE_REQ_DESC_MULTIPLE);
/* if nothing to do return success */
if (new_tx_cnt == vsi->tx_rings[0]->count &&
new_rx_cnt == vsi->rx_rings[0]->count) {
netdev_dbg(netdev, "Nothing to change, descriptor count is same as requested\n");
return 0;
}
while (test_and_set_bit(__ICE_CFG_BUSY, pf->state)) {
timeout--;
if (!timeout)
return -EBUSY;
usleep_range(1000, 2000);
}
/* set for the next time the netdev is started */
if (!netif_running(vsi->netdev)) {
for (i = 0; i < vsi->alloc_txq; i++)
vsi->tx_rings[i]->count = new_tx_cnt;
for (i = 0; i < vsi->alloc_rxq; i++)
vsi->rx_rings[i]->count = new_rx_cnt;
netdev_dbg(netdev, "Link is down, descriptor count change happens when link is brought up\n");
goto done;
}
if (new_tx_cnt == vsi->tx_rings[0]->count)
goto process_rx;
/* alloc updated Tx resources */
netdev_info(netdev, "Changing Tx descriptor count from %d to %d\n",
vsi->tx_rings[0]->count, new_tx_cnt);
tx_rings = devm_kcalloc(&pf->pdev->dev, vsi->alloc_txq,
sizeof(struct ice_ring), GFP_KERNEL);
if (!tx_rings) {
err = -ENOMEM;
goto done;
}
for (i = 0; i < vsi->alloc_txq; i++) {
/* clone ring and setup updated count */
tx_rings[i] = *vsi->tx_rings[i];
tx_rings[i].count = new_tx_cnt;
tx_rings[i].desc = NULL;
tx_rings[i].tx_buf = NULL;
err = ice_setup_tx_ring(&tx_rings[i]);
if (err) {
while (i) {
i--;
ice_clean_tx_ring(&tx_rings[i]);
}
devm_kfree(&pf->pdev->dev, tx_rings);
goto done;
}
}
process_rx:
if (new_rx_cnt == vsi->rx_rings[0]->count)
goto process_link;
/* alloc updated Rx resources */
netdev_info(netdev, "Changing Rx descriptor count from %d to %d\n",
vsi->rx_rings[0]->count, new_rx_cnt);
rx_rings = devm_kcalloc(&pf->pdev->dev, vsi->alloc_rxq,
sizeof(struct ice_ring), GFP_KERNEL);
if (!rx_rings) {
err = -ENOMEM;
goto done;
}
for (i = 0; i < vsi->alloc_rxq; i++) {
/* clone ring and setup updated count */
rx_rings[i] = *vsi->rx_rings[i];
rx_rings[i].count = new_rx_cnt;
rx_rings[i].desc = NULL;
rx_rings[i].rx_buf = NULL;
/* this is to allow wr32 to have something to write to
* during early allocation of Rx buffers
*/
rx_rings[i].tail = vsi->back->hw.hw_addr + PRTGEN_STATUS;
err = ice_setup_rx_ring(&rx_rings[i]);
if (err)
goto rx_unwind;
/* allocate Rx buffers */
err = ice_alloc_rx_bufs(&rx_rings[i],
ICE_DESC_UNUSED(&rx_rings[i]));
rx_unwind:
if (err) {
while (i) {
i--;
ice_free_rx_ring(&rx_rings[i]);
}
devm_kfree(&pf->pdev->dev, rx_rings);
err = -ENOMEM;
goto free_tx;
}
}
process_link:
/* Bring interface down, copy in the new ring info, then restore the
* interface. if VSI is up, bring it down and then back up
*/
if (!test_and_set_bit(__ICE_DOWN, vsi->state)) {
ice_down(vsi);
if (tx_rings) {
for (i = 0; i < vsi->alloc_txq; i++) {
ice_free_tx_ring(vsi->tx_rings[i]);
*vsi->tx_rings[i] = tx_rings[i];
}
devm_kfree(&pf->pdev->dev, tx_rings);
}
if (rx_rings) {
for (i = 0; i < vsi->alloc_rxq; i++) {
ice_free_rx_ring(vsi->rx_rings[i]);
/* copy the real tail offset */
rx_rings[i].tail = vsi->rx_rings[i]->tail;
/* this is to fake out the allocation routine
* into thinking it has to realloc everything
* but the recycling logic will let us re-use
* the buffers allocated above
*/
rx_rings[i].next_to_use = 0;
rx_rings[i].next_to_clean = 0;
rx_rings[i].next_to_alloc = 0;
*vsi->rx_rings[i] = rx_rings[i];
}
devm_kfree(&pf->pdev->dev, rx_rings);
}
ice_up(vsi);
}
goto done;
free_tx:
/* error cleanup if the Rx allocations failed after getting Tx */
if (tx_rings) {
for (i = 0; i < vsi->alloc_txq; i++)
ice_free_tx_ring(&tx_rings[i]);
devm_kfree(&pf->pdev->dev, tx_rings);
}
done:
clear_bit(__ICE_CFG_BUSY, pf->state);
return err;
}
static int ice_nway_reset(struct net_device *netdev)
{
/* restart autonegotiation */
struct ice_netdev_priv *np = netdev_priv(netdev);
struct ice_link_status *hw_link_info;
struct ice_vsi *vsi = np->vsi;
struct ice_port_info *pi;
enum ice_status status;
bool link_up;
pi = vsi->port_info;
hw_link_info = &pi->phy.link_info;
link_up = hw_link_info->link_info & ICE_AQ_LINK_UP;
status = ice_aq_set_link_restart_an(pi, link_up, NULL);
if (status) {
netdev_info(netdev, "link restart failed, err %d aq_err %d\n",
status, pi->hw->adminq.sq_last_status);
return -EIO;
}
return 0;
}
/**
* ice_get_pauseparam - Get Flow Control status
* @netdev: network interface device structure
* @pause: ethernet pause (flow control) parameters
*/
static void
ice_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause)
{
struct ice_netdev_priv *np = netdev_priv(netdev);
struct ice_port_info *pi;
pi = np->vsi->port_info;
pause->autoneg =
((pi->phy.link_info.an_info & ICE_AQ_AN_COMPLETED) ?
AUTONEG_ENABLE : AUTONEG_DISABLE);
if (pi->fc.current_mode == ICE_FC_RX_PAUSE) {
pause->rx_pause = 1;
} else if (pi->fc.current_mode == ICE_FC_TX_PAUSE) {
pause->tx_pause = 1;
} else if (pi->fc.current_mode == ICE_FC_FULL) {
pause->rx_pause = 1;
pause->tx_pause = 1;
}
}
/**
* ice_set_pauseparam - Set Flow Control parameter
* @netdev: network interface device structure
* @pause: return tx/rx flow control status
*/
static int
ice_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause)
{
struct ice_netdev_priv *np = netdev_priv(netdev);
struct ice_link_status *hw_link_info;
struct ice_pf *pf = np->vsi->back;
struct ice_vsi *vsi = np->vsi;
struct ice_hw *hw = &pf->hw;
struct ice_port_info *pi;
enum ice_status status;
u8 aq_failures;
bool link_up;
int err = 0;
pi = vsi->port_info;
hw_link_info = &pi->phy.link_info;
link_up = hw_link_info->link_info & ICE_AQ_LINK_UP;
/* Changing the port's flow control is not supported if this isn't the
* PF VSI
*/
if (vsi->type != ICE_VSI_PF) {
netdev_info(netdev, "Changing flow control parameters only supported for PF VSI\n");
return -EOPNOTSUPP;
}
if (pause->autoneg != (hw_link_info->an_info & ICE_AQ_AN_COMPLETED)) {
netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
return -EOPNOTSUPP;
}
/* If we have link and don't have autoneg */
if (!test_bit(__ICE_DOWN, pf->state) &&
!(hw_link_info->an_info & ICE_AQ_AN_COMPLETED)) {
/* Send message that it might not necessarily work*/
netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
}
if (pause->rx_pause && pause->tx_pause)
pi->fc.req_mode = ICE_FC_FULL;
else if (pause->rx_pause && !pause->tx_pause)
pi->fc.req_mode = ICE_FC_RX_PAUSE;
else if (!pause->rx_pause && pause->tx_pause)
pi->fc.req_mode = ICE_FC_TX_PAUSE;
else if (!pause->rx_pause && !pause->tx_pause)
pi->fc.req_mode = ICE_FC_NONE;
else
return -EINVAL;
/* Tell the OS link is going down, the link will go back up when fw
* says it is ready asynchronously
*/
ice_print_link_msg(vsi, false);
netif_carrier_off(netdev);
netif_tx_stop_all_queues(netdev);
/* Set the FC mode and only restart AN if link is up */
status = ice_set_fc(pi, &aq_failures, link_up);
if (aq_failures & ICE_SET_FC_AQ_FAIL_GET) {
netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %d aq_err %d\n",
status, hw->adminq.sq_last_status);
err = -EAGAIN;
} else if (aq_failures & ICE_SET_FC_AQ_FAIL_SET) {
netdev_info(netdev, "Set fc failed on the set_phy_config call with err %d aq_err %d\n",
status, hw->adminq.sq_last_status);
err = -EAGAIN;
} else if (aq_failures & ICE_SET_FC_AQ_FAIL_UPDATE) {
netdev_info(netdev, "Set fc failed on the get_link_info call with err %d aq_err %d\n",
status, hw->adminq.sq_last_status);
err = -EAGAIN;
}
if (!test_bit(__ICE_DOWN, pf->state)) {
/* Give it a little more time to try to come back */
msleep(75);
if (!test_bit(__ICE_DOWN, pf->state))
return ice_nway_reset(netdev);
}
return err;
}
/**
* ice_get_rxfh_key_size - get the RSS hash key size
* @netdev: network interface device structure
*
* Returns the table size.
*/
static u32 ice_get_rxfh_key_size(struct net_device __always_unused *netdev)
{
return ICE_VSIQF_HKEY_ARRAY_SIZE;
}
/**
* ice_get_rxfh_indir_size - get the rx flow hash indirection table size
* @netdev: network interface device structure
*
* Returns the table size.
*/
static u32 ice_get_rxfh_indir_size(struct net_device *netdev)
{
struct ice_netdev_priv *np = netdev_priv(netdev);
return np->vsi->rss_table_size;
}
/**
* ice_get_rxfh - get the rx flow hash indirection table
* @netdev: network interface device structure
* @indir: indirection table
* @key: hash key
* @hfunc: hash function
*
* Reads the indirection table directly from the hardware.
*/
static int
ice_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, u8 *hfunc)
{
struct ice_netdev_priv *np = netdev_priv(netdev);
struct ice_vsi *vsi = np->vsi;
struct ice_pf *pf = vsi->back;
int ret = 0, i;
u8 *lut;
if (hfunc)
*hfunc = ETH_RSS_HASH_TOP;
if (!indir)
return 0;
if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
/* RSS not supported return error here */
netdev_warn(netdev, "RSS is not configured on this VSI!\n");
return -EIO;
}
lut = devm_kzalloc(&pf->pdev->dev, vsi->rss_table_size, GFP_KERNEL);
if (!lut)
return -ENOMEM;
if (ice_get_rss(vsi, key, lut, vsi->rss_table_size)) {
ret = -EIO;
goto out;
}
for (i = 0; i < vsi->rss_table_size; i++)
indir[i] = (u32)(lut[i]);
out:
devm_kfree(&pf->pdev->dev, lut);
return ret;
}
/**
* ice_set_rxfh - set the rx flow hash indirection table
* @netdev: network interface device structure
* @indir: indirection table
* @key: hash key
* @hfunc: hash function
*
* Returns -EINVAL if the table specifies an invalid queue id, otherwise
* returns 0 after programming the table.
*/
static int ice_set_rxfh(struct net_device *netdev, const u32 *indir,
const u8 *key, const u8 hfunc)
{
struct ice_netdev_priv *np = netdev_priv(netdev);
struct ice_vsi *vsi = np->vsi;
struct ice_pf *pf = vsi->back;
u8 *seed = NULL;
if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
return -EOPNOTSUPP;
if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
/* RSS not supported return error here */
netdev_warn(netdev, "RSS is not configured on this VSI!\n");
return -EIO;
}
if (key) {
if (!vsi->rss_hkey_user) {
vsi->rss_hkey_user =
devm_kzalloc(&pf->pdev->dev,
ICE_VSIQF_HKEY_ARRAY_SIZE,
GFP_KERNEL);
if (!vsi->rss_hkey_user)
return -ENOMEM;
}
memcpy(vsi->rss_hkey_user, key, ICE_VSIQF_HKEY_ARRAY_SIZE);
seed = vsi->rss_hkey_user;
}
if (!vsi->rss_lut_user) {
vsi->rss_lut_user = devm_kzalloc(&pf->pdev->dev,
vsi->rss_table_size,
GFP_KERNEL);
if (!vsi->rss_lut_user)
return -ENOMEM;
}
/* Each 32 bits pointed by 'indir' is stored with a lut entry */
if (indir) {
int i;
for (i = 0; i < vsi->rss_table_size; i++)
vsi->rss_lut_user[i] = (u8)(indir[i]);
} else {
ice_fill_rss_lut(vsi->rss_lut_user, vsi->rss_table_size,
vsi->rss_size);
}
if (ice_set_rss(vsi, seed, vsi->rss_lut_user, vsi->rss_table_size))
return -EIO;
return 0;
}
static const struct ethtool_ops ice_ethtool_ops = {
.get_link_ksettings = ice_get_link_ksettings,
.set_link_ksettings = ice_set_link_ksettings,
.get_drvinfo = ice_get_drvinfo,
.get_regs_len = ice_get_regs_len,
.get_regs = ice_get_regs,
.get_msglevel = ice_get_msglevel,
.set_msglevel = ice_set_msglevel,
.get_link = ethtool_op_get_link,
.get_strings = ice_get_strings,
.get_ethtool_stats = ice_get_ethtool_stats,
.get_sset_count = ice_get_sset_count,
.get_rxnfc = ice_get_rxnfc,
.get_ringparam = ice_get_ringparam,
.set_ringparam = ice_set_ringparam,
.nway_reset = ice_nway_reset,
.get_pauseparam = ice_get_pauseparam,
.set_pauseparam = ice_set_pauseparam,
.get_rxfh_key_size = ice_get_rxfh_key_size,
.get_rxfh_indir_size = ice_get_rxfh_indir_size,
.get_rxfh = ice_get_rxfh,
.set_rxfh = ice_set_rxfh,
};
/**
* ice_set_ethtool_ops - setup netdev ethtool ops
* @netdev: network interface device structure
*
* setup netdev ethtool ops with ice specific ops
*/
void ice_set_ethtool_ops(struct net_device *netdev)
{
netdev->ethtool_ops = &ice_ethtool_ops;
}
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