/*******************************************************************************
*
* Intel Ethernet Controller XL710 Family Linux Driver
* Copyright(c) 2013 - 2015 Intel Corporation.
*
* 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.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see .
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
* Contact Information:
* e1000-devel Mailing List
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
******************************************************************************/
/* ethtool support for i40e */
#include "i40e.h"
#include "i40e_diag.h"
struct i40e_stats {
char stat_string[ETH_GSTRING_LEN];
int sizeof_stat;
int stat_offset;
};
#define I40E_STAT(_type, _name, _stat) { \
.stat_string = _name, \
.sizeof_stat = FIELD_SIZEOF(_type, _stat), \
.stat_offset = offsetof(_type, _stat) \
}
#define I40E_NETDEV_STAT(_net_stat) \
I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat)
#define I40E_PF_STAT(_name, _stat) \
I40E_STAT(struct i40e_pf, _name, _stat)
#define I40E_VSI_STAT(_name, _stat) \
I40E_STAT(struct i40e_vsi, _name, _stat)
#define I40E_VEB_STAT(_name, _stat) \
I40E_STAT(struct i40e_veb, _name, _stat)
static const struct i40e_stats i40e_gstrings_net_stats[] = {
I40E_NETDEV_STAT(rx_packets),
I40E_NETDEV_STAT(tx_packets),
I40E_NETDEV_STAT(rx_bytes),
I40E_NETDEV_STAT(tx_bytes),
I40E_NETDEV_STAT(rx_errors),
I40E_NETDEV_STAT(tx_errors),
I40E_NETDEV_STAT(rx_dropped),
I40E_NETDEV_STAT(tx_dropped),
I40E_NETDEV_STAT(collisions),
I40E_NETDEV_STAT(rx_length_errors),
I40E_NETDEV_STAT(rx_crc_errors),
};
static const struct i40e_stats i40e_gstrings_veb_stats[] = {
I40E_VEB_STAT("rx_bytes", stats.rx_bytes),
I40E_VEB_STAT("tx_bytes", stats.tx_bytes),
I40E_VEB_STAT("rx_unicast", stats.rx_unicast),
I40E_VEB_STAT("tx_unicast", stats.tx_unicast),
I40E_VEB_STAT("rx_multicast", stats.rx_multicast),
I40E_VEB_STAT("tx_multicast", stats.tx_multicast),
I40E_VEB_STAT("rx_broadcast", stats.rx_broadcast),
I40E_VEB_STAT("tx_broadcast", stats.tx_broadcast),
I40E_VEB_STAT("rx_discards", stats.rx_discards),
I40E_VEB_STAT("tx_discards", stats.tx_discards),
I40E_VEB_STAT("tx_errors", stats.tx_errors),
I40E_VEB_STAT("rx_unknown_protocol", stats.rx_unknown_protocol),
};
static const struct i40e_stats i40e_gstrings_misc_stats[] = {
I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
};
static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
struct ethtool_rxnfc *cmd);
/* These PF_STATs might look like duplicates of some NETDEV_STATs,
* but they are separate. This device supports Virtualization, and
* as such might have several netdevs supporting VMDq and FCoE going
* through a single port. The NETDEV_STATs are for individual netdevs
* seen at the top of the stack, and the PF_STATs are for the physical
* function at the bottom of the stack hosting those netdevs.
*
* The PF_STATs are appended to the netdev stats only when ethtool -S
* is queried on the base PF netdev, not on the VMDq or FCoE netdev.
*/
static struct i40e_stats i40e_gstrings_stats[] = {
I40E_PF_STAT("rx_bytes", stats.eth.rx_bytes),
I40E_PF_STAT("tx_bytes", stats.eth.tx_bytes),
I40E_PF_STAT("rx_unicast", stats.eth.rx_unicast),
I40E_PF_STAT("tx_unicast", stats.eth.tx_unicast),
I40E_PF_STAT("rx_multicast", stats.eth.rx_multicast),
I40E_PF_STAT("tx_multicast", stats.eth.tx_multicast),
I40E_PF_STAT("rx_broadcast", stats.eth.rx_broadcast),
I40E_PF_STAT("tx_broadcast", stats.eth.tx_broadcast),
I40E_PF_STAT("tx_errors", stats.eth.tx_errors),
I40E_PF_STAT("rx_dropped", stats.eth.rx_discards),
I40E_PF_STAT("tx_dropped_link_down", stats.tx_dropped_link_down),
I40E_PF_STAT("crc_errors", stats.crc_errors),
I40E_PF_STAT("illegal_bytes", stats.illegal_bytes),
I40E_PF_STAT("mac_local_faults", stats.mac_local_faults),
I40E_PF_STAT("mac_remote_faults", stats.mac_remote_faults),
I40E_PF_STAT("tx_timeout", tx_timeout_count),
I40E_PF_STAT("rx_csum_bad", hw_csum_rx_error),
I40E_PF_STAT("rx_length_errors", stats.rx_length_errors),
I40E_PF_STAT("link_xon_rx", stats.link_xon_rx),
I40E_PF_STAT("link_xoff_rx", stats.link_xoff_rx),
I40E_PF_STAT("link_xon_tx", stats.link_xon_tx),
I40E_PF_STAT("link_xoff_tx", stats.link_xoff_tx),
I40E_PF_STAT("rx_size_64", stats.rx_size_64),
I40E_PF_STAT("rx_size_127", stats.rx_size_127),
I40E_PF_STAT("rx_size_255", stats.rx_size_255),
I40E_PF_STAT("rx_size_511", stats.rx_size_511),
I40E_PF_STAT("rx_size_1023", stats.rx_size_1023),
I40E_PF_STAT("rx_size_1522", stats.rx_size_1522),
I40E_PF_STAT("rx_size_big", stats.rx_size_big),
I40E_PF_STAT("tx_size_64", stats.tx_size_64),
I40E_PF_STAT("tx_size_127", stats.tx_size_127),
I40E_PF_STAT("tx_size_255", stats.tx_size_255),
I40E_PF_STAT("tx_size_511", stats.tx_size_511),
I40E_PF_STAT("tx_size_1023", stats.tx_size_1023),
I40E_PF_STAT("tx_size_1522", stats.tx_size_1522),
I40E_PF_STAT("tx_size_big", stats.tx_size_big),
I40E_PF_STAT("rx_undersize", stats.rx_undersize),
I40E_PF_STAT("rx_fragments", stats.rx_fragments),
I40E_PF_STAT("rx_oversize", stats.rx_oversize),
I40E_PF_STAT("rx_jabber", stats.rx_jabber),
I40E_PF_STAT("VF_admin_queue_requests", vf_aq_requests),
I40E_PF_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
I40E_PF_STAT("fdir_flush_cnt", fd_flush_cnt),
I40E_PF_STAT("fdir_atr_match", stats.fd_atr_match),
I40E_PF_STAT("fdir_sb_match", stats.fd_sb_match),
/* LPI stats */
I40E_PF_STAT("tx_lpi_status", stats.tx_lpi_status),
I40E_PF_STAT("rx_lpi_status", stats.rx_lpi_status),
I40E_PF_STAT("tx_lpi_count", stats.tx_lpi_count),
I40E_PF_STAT("rx_lpi_count", stats.rx_lpi_count),
};
#ifdef I40E_FCOE
static const struct i40e_stats i40e_gstrings_fcoe_stats[] = {
I40E_VSI_STAT("fcoe_bad_fccrc", fcoe_stats.fcoe_bad_fccrc),
I40E_VSI_STAT("rx_fcoe_dropped", fcoe_stats.rx_fcoe_dropped),
I40E_VSI_STAT("rx_fcoe_packets", fcoe_stats.rx_fcoe_packets),
I40E_VSI_STAT("rx_fcoe_dwords", fcoe_stats.rx_fcoe_dwords),
I40E_VSI_STAT("fcoe_ddp_count", fcoe_stats.fcoe_ddp_count),
I40E_VSI_STAT("fcoe_last_error", fcoe_stats.fcoe_last_error),
I40E_VSI_STAT("tx_fcoe_packets", fcoe_stats.tx_fcoe_packets),
I40E_VSI_STAT("tx_fcoe_dwords", fcoe_stats.tx_fcoe_dwords),
};
#endif /* I40E_FCOE */
#define I40E_QUEUE_STATS_LEN(n) \
(((struct i40e_netdev_priv *)netdev_priv((n)))->vsi->num_queue_pairs \
* 2 /* Tx and Rx together */ \
* (sizeof(struct i40e_queue_stats) / sizeof(u64)))
#define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats)
#define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats)
#define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats)
#ifdef I40E_FCOE
#define I40E_FCOE_STATS_LEN ARRAY_SIZE(i40e_gstrings_fcoe_stats)
#define I40E_VSI_STATS_LEN(n) (I40E_NETDEV_STATS_LEN + \
I40E_FCOE_STATS_LEN + \
I40E_MISC_STATS_LEN + \
I40E_QUEUE_STATS_LEN((n)))
#else
#define I40E_VSI_STATS_LEN(n) (I40E_NETDEV_STATS_LEN + \
I40E_MISC_STATS_LEN + \
I40E_QUEUE_STATS_LEN((n)))
#endif /* I40E_FCOE */
#define I40E_PFC_STATS_LEN ( \
(FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_rx) + \
FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_rx) + \
FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_tx) + \
FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_tx) + \
FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_2_xoff)) \
/ sizeof(u64))
#define I40E_VEB_STATS_LEN ARRAY_SIZE(i40e_gstrings_veb_stats)
#define I40E_PF_STATS_LEN(n) (I40E_GLOBAL_STATS_LEN + \
I40E_PFC_STATS_LEN + \
I40E_VSI_STATS_LEN((n)))
enum i40e_ethtool_test_id {
I40E_ETH_TEST_REG = 0,
I40E_ETH_TEST_EEPROM,
I40E_ETH_TEST_INTR,
I40E_ETH_TEST_LOOPBACK,
I40E_ETH_TEST_LINK,
};
static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = {
"Register test (offline)",
"Eeprom test (offline)",
"Interrupt test (offline)",
"Loopback test (offline)",
"Link test (on/offline)"
};
#define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)
static const char i40e_priv_flags_strings[][ETH_GSTRING_LEN] = {
"NPAR",
};
#define I40E_PRIV_FLAGS_STR_LEN \
(sizeof(i40e_priv_flags_strings) / ETH_GSTRING_LEN)
/**
* i40e_partition_setting_complaint - generic complaint for MFP restriction
* @pf: the PF struct
**/
static void i40e_partition_setting_complaint(struct i40e_pf *pf)
{
dev_info(&pf->pdev->dev,
"The link settings are allowed to be changed only from the first partition of a given port. Please switch to the first partition in order to change the setting.\n");
}
/**
* i40e_get_settings_link_up - Get the Link settings for when link is up
* @hw: hw structure
* @ecmd: ethtool command to fill in
* @netdev: network interface device structure
*
**/
static void i40e_get_settings_link_up(struct i40e_hw *hw,
struct ethtool_cmd *ecmd,
struct net_device *netdev)
{
struct i40e_link_status *hw_link_info = &hw->phy.link_info;
u32 link_speed = hw_link_info->link_speed;
/* Initialize supported and advertised settings based on phy settings */
switch (hw_link_info->phy_type) {
case I40E_PHY_TYPE_40GBASE_CR4:
case I40E_PHY_TYPE_40GBASE_CR4_CU:
ecmd->supported = SUPPORTED_Autoneg |
SUPPORTED_40000baseCR4_Full;
ecmd->advertising = ADVERTISED_Autoneg |
ADVERTISED_40000baseCR4_Full;
break;
case I40E_PHY_TYPE_XLAUI:
case I40E_PHY_TYPE_XLPPI:
case I40E_PHY_TYPE_40GBASE_AOC:
ecmd->supported = SUPPORTED_40000baseCR4_Full;
break;
case I40E_PHY_TYPE_40GBASE_KR4:
ecmd->supported = SUPPORTED_Autoneg |
SUPPORTED_40000baseKR4_Full;
ecmd->advertising = ADVERTISED_Autoneg |
ADVERTISED_40000baseKR4_Full;
break;
case I40E_PHY_TYPE_40GBASE_SR4:
ecmd->supported = SUPPORTED_40000baseSR4_Full;
break;
case I40E_PHY_TYPE_40GBASE_LR4:
ecmd->supported = SUPPORTED_40000baseLR4_Full;
break;
case I40E_PHY_TYPE_10GBASE_KX4:
ecmd->supported = SUPPORTED_Autoneg |
SUPPORTED_10000baseKX4_Full;
ecmd->advertising = ADVERTISED_Autoneg |
ADVERTISED_10000baseKX4_Full;
break;
case I40E_PHY_TYPE_10GBASE_KR:
ecmd->supported = SUPPORTED_Autoneg |
SUPPORTED_10000baseKR_Full;
ecmd->advertising = ADVERTISED_Autoneg |
ADVERTISED_10000baseKR_Full;
break;
case I40E_PHY_TYPE_10GBASE_SR:
case I40E_PHY_TYPE_10GBASE_LR:
case I40E_PHY_TYPE_1000BASE_SX:
case I40E_PHY_TYPE_1000BASE_LX:
ecmd->supported = SUPPORTED_10000baseT_Full |
SUPPORTED_1000baseT_Full;
if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
ecmd->advertising |= ADVERTISED_10000baseT_Full;
if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
ecmd->advertising |= ADVERTISED_1000baseT_Full;
break;
case I40E_PHY_TYPE_1000BASE_KX:
ecmd->supported = SUPPORTED_Autoneg |
SUPPORTED_1000baseKX_Full;
ecmd->advertising = ADVERTISED_Autoneg |
ADVERTISED_1000baseKX_Full;
break;
case I40E_PHY_TYPE_10GBASE_T:
case I40E_PHY_TYPE_1000BASE_T:
case I40E_PHY_TYPE_100BASE_TX:
ecmd->supported = SUPPORTED_Autoneg |
SUPPORTED_10000baseT_Full |
SUPPORTED_1000baseT_Full |
SUPPORTED_100baseT_Full;
ecmd->advertising = ADVERTISED_Autoneg;
if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
ecmd->advertising |= ADVERTISED_10000baseT_Full;
if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
ecmd->advertising |= ADVERTISED_1000baseT_Full;
if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
ecmd->advertising |= ADVERTISED_100baseT_Full;
break;
case I40E_PHY_TYPE_10GBASE_CR1_CU:
case I40E_PHY_TYPE_10GBASE_CR1:
ecmd->supported = SUPPORTED_Autoneg |
SUPPORTED_10000baseT_Full;
ecmd->advertising = ADVERTISED_Autoneg |
ADVERTISED_10000baseT_Full;
break;
case I40E_PHY_TYPE_XAUI:
case I40E_PHY_TYPE_XFI:
case I40E_PHY_TYPE_SFI:
case I40E_PHY_TYPE_10GBASE_SFPP_CU:
case I40E_PHY_TYPE_10GBASE_AOC:
ecmd->supported = SUPPORTED_10000baseT_Full;
break;
case I40E_PHY_TYPE_SGMII:
ecmd->supported = SUPPORTED_Autoneg |
SUPPORTED_1000baseT_Full |
SUPPORTED_100baseT_Full;
if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
ecmd->advertising |= ADVERTISED_1000baseT_Full;
if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
ecmd->advertising |= ADVERTISED_100baseT_Full;
break;
default:
/* if we got here and link is up something bad is afoot */
netdev_info(netdev, "WARNING: Link is up but PHY type 0x%x is not recognized.\n",
hw_link_info->phy_type);
}
/* Set speed and duplex */
switch (link_speed) {
case I40E_LINK_SPEED_40GB:
/* need a SPEED_40000 in ethtool.h */
ethtool_cmd_speed_set(ecmd, 40000);
break;
case I40E_LINK_SPEED_10GB:
ethtool_cmd_speed_set(ecmd, SPEED_10000);
break;
case I40E_LINK_SPEED_1GB:
ethtool_cmd_speed_set(ecmd, SPEED_1000);
break;
case I40E_LINK_SPEED_100MB:
ethtool_cmd_speed_set(ecmd, SPEED_100);
break;
default:
break;
}
ecmd->duplex = DUPLEX_FULL;
}
/**
* i40e_get_settings_link_down - Get the Link settings for when link is down
* @hw: hw structure
* @ecmd: ethtool command to fill in
*
* Reports link settings that can be determined when link is down
**/
static void i40e_get_settings_link_down(struct i40e_hw *hw,
struct ethtool_cmd *ecmd)
{
struct i40e_link_status *hw_link_info = &hw->phy.link_info;
/* link is down and the driver needs to fall back on
* device ID to determine what kinds of info to display,
* it's mostly a guess that may change when link is up
*/
switch (hw->device_id) {
case I40E_DEV_ID_QSFP_A:
case I40E_DEV_ID_QSFP_B:
case I40E_DEV_ID_QSFP_C:
/* pluggable QSFP */
ecmd->supported = SUPPORTED_40000baseSR4_Full |
SUPPORTED_40000baseCR4_Full |
SUPPORTED_40000baseLR4_Full;
ecmd->advertising = ADVERTISED_40000baseSR4_Full |
ADVERTISED_40000baseCR4_Full |
ADVERTISED_40000baseLR4_Full;
break;
case I40E_DEV_ID_KX_B:
/* backplane 40G */
ecmd->supported = SUPPORTED_40000baseKR4_Full;
ecmd->advertising = ADVERTISED_40000baseKR4_Full;
break;
case I40E_DEV_ID_KX_C:
/* backplane 10G */
ecmd->supported = SUPPORTED_10000baseKR_Full;
ecmd->advertising = ADVERTISED_10000baseKR_Full;
break;
case I40E_DEV_ID_10G_BASE_T:
ecmd->supported = SUPPORTED_10000baseT_Full |
SUPPORTED_1000baseT_Full |
SUPPORTED_100baseT_Full;
/* Figure out what has been requested */
if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
ecmd->advertising |= ADVERTISED_10000baseT_Full;
if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
ecmd->advertising |= ADVERTISED_1000baseT_Full;
if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
ecmd->advertising |= ADVERTISED_100baseT_Full;
break;
default:
/* all the rest are 10G/1G */
ecmd->supported = SUPPORTED_10000baseT_Full |
SUPPORTED_1000baseT_Full;
/* Figure out what has been requested */
if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
ecmd->advertising |= ADVERTISED_10000baseT_Full;
if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
ecmd->advertising |= ADVERTISED_1000baseT_Full;
break;
}
/* With no link speed and duplex are unknown */
ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
ecmd->duplex = DUPLEX_UNKNOWN;
}
/**
* i40e_get_settings - Get Link Speed and Duplex settings
* @netdev: network interface device structure
* @ecmd: ethtool command
*
* Reports speed/duplex settings based on media_type
**/
static int i40e_get_settings(struct net_device *netdev,
struct ethtool_cmd *ecmd)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_pf *pf = np->vsi->back;
struct i40e_hw *hw = &pf->hw;
struct i40e_link_status *hw_link_info = &hw->phy.link_info;
bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
if (link_up)
i40e_get_settings_link_up(hw, ecmd, netdev);
else
i40e_get_settings_link_down(hw, ecmd);
/* Now set the settings that don't rely on link being up/down */
/* Set autoneg settings */
ecmd->autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
AUTONEG_ENABLE : AUTONEG_DISABLE);
switch (hw->phy.media_type) {
case I40E_MEDIA_TYPE_BACKPLANE:
ecmd->supported |= SUPPORTED_Autoneg |
SUPPORTED_Backplane;
ecmd->advertising |= ADVERTISED_Autoneg |
ADVERTISED_Backplane;
ecmd->port = PORT_NONE;
break;
case I40E_MEDIA_TYPE_BASET:
ecmd->supported |= SUPPORTED_TP;
ecmd->advertising |= ADVERTISED_TP;
ecmd->port = PORT_TP;
break;
case I40E_MEDIA_TYPE_DA:
case I40E_MEDIA_TYPE_CX4:
ecmd->supported |= SUPPORTED_FIBRE;
ecmd->advertising |= ADVERTISED_FIBRE;
ecmd->port = PORT_DA;
break;
case I40E_MEDIA_TYPE_FIBER:
ecmd->supported |= SUPPORTED_FIBRE;
ecmd->port = PORT_FIBRE;
break;
case I40E_MEDIA_TYPE_UNKNOWN:
default:
ecmd->port = PORT_OTHER;
break;
}
/* Set transceiver */
ecmd->transceiver = XCVR_EXTERNAL;
/* Set flow control settings */
ecmd->supported |= SUPPORTED_Pause;
switch (hw->fc.requested_mode) {
case I40E_FC_FULL:
ecmd->advertising |= ADVERTISED_Pause;
break;
case I40E_FC_TX_PAUSE:
ecmd->advertising |= ADVERTISED_Asym_Pause;
break;
case I40E_FC_RX_PAUSE:
ecmd->advertising |= (ADVERTISED_Pause |
ADVERTISED_Asym_Pause);
break;
default:
ecmd->advertising &= ~(ADVERTISED_Pause |
ADVERTISED_Asym_Pause);
break;
}
return 0;
}
/**
* i40e_set_settings - Set Speed and Duplex
* @netdev: network interface device structure
* @ecmd: ethtool command
*
* Set speed/duplex per media_types advertised/forced
**/
static int i40e_set_settings(struct net_device *netdev,
struct ethtool_cmd *ecmd)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_aq_get_phy_abilities_resp abilities;
struct i40e_aq_set_phy_config config;
struct i40e_pf *pf = np->vsi->back;
struct i40e_vsi *vsi = np->vsi;
struct i40e_hw *hw = &pf->hw;
struct ethtool_cmd safe_ecmd;
i40e_status status = 0;
bool change = false;
int err = 0;
u8 autoneg;
u32 advertise;
/* Changing port settings is not supported if this isn't the
* port's controlling PF
*/
if (hw->partition_id != 1) {
i40e_partition_setting_complaint(pf);
return -EOPNOTSUPP;
}
if (vsi != pf->vsi[pf->lan_vsi])
return -EOPNOTSUPP;
if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE &&
hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
return -EOPNOTSUPP;
/* get our own copy of the bits to check against */
memset(&safe_ecmd, 0, sizeof(struct ethtool_cmd));
i40e_get_settings(netdev, &safe_ecmd);
/* save autoneg and speed out of ecmd */
autoneg = ecmd->autoneg;
advertise = ecmd->advertising;
/* set autoneg and speed back to what they currently are */
ecmd->autoneg = safe_ecmd.autoneg;
ecmd->advertising = safe_ecmd.advertising;
ecmd->cmd = safe_ecmd.cmd;
/* If ecmd and safe_ecmd are not the same now, then they are
* trying to set something that we do not support
*/
if (memcmp(ecmd, &safe_ecmd, sizeof(struct ethtool_cmd)))
return -EOPNOTSUPP;
while (test_bit(__I40E_CONFIG_BUSY, &vsi->state))
usleep_range(1000, 2000);
/* Get the current phy config */
status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
NULL);
if (status)
return -EAGAIN;
/* Copy abilities to config in case autoneg is not
* set below
*/
memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
config.abilities = abilities.abilities;
/* Check autoneg */
if (autoneg == AUTONEG_ENABLE) {
/* If autoneg is not supported, return error */
if (!(safe_ecmd.supported & SUPPORTED_Autoneg)) {
netdev_info(netdev, "Autoneg not supported on this phy\n");
return -EINVAL;
}
/* If autoneg was not already enabled */
if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
config.abilities = abilities.abilities |
I40E_AQ_PHY_ENABLE_AN;
change = true;
}
} else {
/* If autoneg is supported 10GBASE_T is the only phy that
* can disable it, so otherwise return error
*/
if (safe_ecmd.supported & SUPPORTED_Autoneg &&
hw->phy.link_info.phy_type != I40E_PHY_TYPE_10GBASE_T) {
netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
return -EINVAL;
}
/* If autoneg is currently enabled */
if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
config.abilities = abilities.abilities &
~I40E_AQ_PHY_ENABLE_AN;
change = true;
}
}
if (advertise & ~safe_ecmd.supported)
return -EINVAL;
if (advertise & ADVERTISED_100baseT_Full)
config.link_speed |= I40E_LINK_SPEED_100MB;
if (advertise & ADVERTISED_1000baseT_Full ||
advertise & ADVERTISED_1000baseKX_Full)
config.link_speed |= I40E_LINK_SPEED_1GB;
if (advertise & ADVERTISED_10000baseT_Full ||
advertise & ADVERTISED_10000baseKX4_Full ||
advertise & ADVERTISED_10000baseKR_Full)
config.link_speed |= I40E_LINK_SPEED_10GB;
if (advertise & ADVERTISED_40000baseKR4_Full ||
advertise & ADVERTISED_40000baseCR4_Full ||
advertise & ADVERTISED_40000baseSR4_Full ||
advertise & ADVERTISED_40000baseLR4_Full)
config.link_speed |= I40E_LINK_SPEED_40GB;
if (change || (abilities.link_speed != config.link_speed)) {
/* copy over the rest of the abilities */
config.phy_type = abilities.phy_type;
config.eee_capability = abilities.eee_capability;
config.eeer = abilities.eeer_val;
config.low_power_ctrl = abilities.d3_lpan;
/* save the requested speeds */
hw->phy.link_info.requested_speeds = config.link_speed;
/* set link and auto negotiation so changes take effect */
config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
/* If link is up put link down */
if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
/* Tell the OS link is going down, the link will go
* back up when fw says it is ready asynchronously
*/
netdev_info(netdev, "PHY settings change requested, NIC Link is going down.\n");
netif_carrier_off(netdev);
netif_tx_stop_all_queues(netdev);
}
/* make the aq call */
status = i40e_aq_set_phy_config(hw, &config, NULL);
if (status) {
netdev_info(netdev, "Set phy config failed with error %d.\n",
status);
return -EAGAIN;
}
status = i40e_aq_get_link_info(hw, true, NULL, NULL);
if (status)
netdev_info(netdev, "Updating link info failed with error %d\n",
status);
} else {
netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
}
return err;
}
static int i40e_nway_reset(struct net_device *netdev)
{
/* restart autonegotiation */
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_pf *pf = np->vsi->back;
struct i40e_hw *hw = &pf->hw;
bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
i40e_status ret = 0;
ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
if (ret) {
netdev_info(netdev, "link restart failed, aq_err=%d\n",
pf->hw.aq.asq_last_status);
return -EIO;
}
return 0;
}
/**
* i40e_get_pauseparam - Get Flow Control status
* Return tx/rx-pause status
**/
static void i40e_get_pauseparam(struct net_device *netdev,
struct ethtool_pauseparam *pause)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_pf *pf = np->vsi->back;
struct i40e_hw *hw = &pf->hw;
struct i40e_link_status *hw_link_info = &hw->phy.link_info;
struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
pause->autoneg =
((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
AUTONEG_ENABLE : AUTONEG_DISABLE);
/* PFC enabled so report LFC as off */
if (dcbx_cfg->pfc.pfcenable) {
pause->rx_pause = 0;
pause->tx_pause = 0;
return;
}
if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
pause->rx_pause = 1;
} else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
pause->tx_pause = 1;
} else if (hw->fc.current_mode == I40E_FC_FULL) {
pause->rx_pause = 1;
pause->tx_pause = 1;
}
}
/**
* i40e_set_pauseparam - Set Flow Control parameter
* @netdev: network interface device structure
* @pause: return tx/rx flow control status
**/
static int i40e_set_pauseparam(struct net_device *netdev,
struct ethtool_pauseparam *pause)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_pf *pf = np->vsi->back;
struct i40e_vsi *vsi = np->vsi;
struct i40e_hw *hw = &pf->hw;
struct i40e_link_status *hw_link_info = &hw->phy.link_info;
struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
i40e_status status;
u8 aq_failures;
int err = 0;
/* Changing the port's flow control is not supported if this isn't the
* port's controlling PF
*/
if (hw->partition_id != 1) {
i40e_partition_setting_complaint(pf);
return -EOPNOTSUPP;
}
if (vsi != pf->vsi[pf->lan_vsi])
return -EOPNOTSUPP;
if (pause->autoneg != ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
AUTONEG_ENABLE : AUTONEG_DISABLE)) {
netdev_info(netdev, "To change autoneg please use: ethtool -s autoneg \n");
return -EOPNOTSUPP;
}
/* If we have link and don't have autoneg */
if (!test_bit(__I40E_DOWN, &pf->state) &&
!(hw_link_info->an_info & I40E_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 (dcbx_cfg->pfc.pfcenable) {
netdev_info(netdev,
"Priority flow control enabled. Cannot set link flow control.\n");
return -EOPNOTSUPP;
}
if (pause->rx_pause && pause->tx_pause)
hw->fc.requested_mode = I40E_FC_FULL;
else if (pause->rx_pause && !pause->tx_pause)
hw->fc.requested_mode = I40E_FC_RX_PAUSE;
else if (!pause->rx_pause && pause->tx_pause)
hw->fc.requested_mode = I40E_FC_TX_PAUSE;
else if (!pause->rx_pause && !pause->tx_pause)
hw->fc.requested_mode = I40E_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
*/
netdev_info(netdev, "Flow control settings change requested, NIC Link is going down.\n");
netif_carrier_off(netdev);
netif_tx_stop_all_queues(netdev);
/* Set the fc mode and only restart an if link is up*/
status = i40e_set_fc(hw, &aq_failures, link_up);
if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with error %d and status %d\n",
status, hw->aq.asq_last_status);
err = -EAGAIN;
}
if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
netdev_info(netdev, "Set fc failed on the set_phy_config call with error %d and status %d\n",
status, hw->aq.asq_last_status);
err = -EAGAIN;
}
if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
netdev_info(netdev, "Set fc failed on the get_link_info call with error %d and status %d\n",
status, hw->aq.asq_last_status);
err = -EAGAIN;
}
if (!test_bit(__I40E_DOWN, &pf->state)) {
/* Give it a little more time to try to come back */
msleep(75);
if (!test_bit(__I40E_DOWN, &pf->state))
return i40e_nway_reset(netdev);
}
return err;
}
static u32 i40e_get_msglevel(struct net_device *netdev)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_pf *pf = np->vsi->back;
return pf->msg_enable;
}
static void i40e_set_msglevel(struct net_device *netdev, u32 data)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_pf *pf = np->vsi->back;
if (I40E_DEBUG_USER & data)
pf->hw.debug_mask = data;
pf->msg_enable = data;
}
static int i40e_get_regs_len(struct net_device *netdev)
{
int reg_count = 0;
int i;
for (i = 0; i40e_reg_list[i].offset != 0; i++)
reg_count += i40e_reg_list[i].elements;
return reg_count * sizeof(u32);
}
static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
void *p)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_pf *pf = np->vsi->back;
struct i40e_hw *hw = &pf->hw;
u32 *reg_buf = p;
int i, j, ri;
u32 reg;
/* Tell ethtool which driver-version-specific regs output we have.
*
* At some point, if we have ethtool doing special formatting of
* this data, it will rely on this version number to know how to
* interpret things. Hence, this needs to be updated if/when the
* diags register table is changed.
*/
regs->version = 1;
/* loop through the diags reg table for what to print */
ri = 0;
for (i = 0; i40e_reg_list[i].offset != 0; i++) {
for (j = 0; j < i40e_reg_list[i].elements; j++) {
reg = i40e_reg_list[i].offset
+ (j * i40e_reg_list[i].stride);
reg_buf[ri++] = rd32(hw, reg);
}
}
}
static int i40e_get_eeprom(struct net_device *netdev,
struct ethtool_eeprom *eeprom, u8 *bytes)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_hw *hw = &np->vsi->back->hw;
struct i40e_pf *pf = np->vsi->back;
int ret_val = 0, len, offset;
u8 *eeprom_buff;
u16 i, sectors;
bool last;
u32 magic;
#define I40E_NVM_SECTOR_SIZE 4096
if (eeprom->len == 0)
return -EINVAL;
/* check for NVMUpdate access method */
magic = hw->vendor_id | (hw->device_id << 16);
if (eeprom->magic && eeprom->magic != magic) {
struct i40e_nvm_access *cmd;
int errno;
/* make sure it is the right magic for NVMUpdate */
if ((eeprom->magic >> 16) != hw->device_id)
return -EINVAL;
cmd = (struct i40e_nvm_access *)eeprom;
ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
if (ret_val &&
((hw->aq.asq_last_status != I40E_AQ_RC_EACCES) ||
(hw->debug_mask & I40E_DEBUG_NVM)))
dev_info(&pf->pdev->dev,
"NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
ret_val, hw->aq.asq_last_status, errno,
(u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
cmd->offset, cmd->data_size);
return errno;
}
/* normal ethtool get_eeprom support */
eeprom->magic = hw->vendor_id | (hw->device_id << 16);
eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
if (!eeprom_buff)
return -ENOMEM;
ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
if (ret_val) {
dev_info(&pf->pdev->dev,
"Failed Acquiring NVM resource for read err=%d status=0x%x\n",
ret_val, hw->aq.asq_last_status);
goto free_buff;
}
sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
len = I40E_NVM_SECTOR_SIZE;
last = false;
for (i = 0; i < sectors; i++) {
if (i == (sectors - 1)) {
len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
last = true;
}
offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
(u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
last, NULL);
if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
dev_info(&pf->pdev->dev,
"read NVM failed, invalid offset 0x%x\n",
offset);
break;
} else if (ret_val &&
hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
dev_info(&pf->pdev->dev,
"read NVM failed, access, offset 0x%x\n",
offset);
break;
} else if (ret_val) {
dev_info(&pf->pdev->dev,
"read NVM failed offset %d err=%d status=0x%x\n",
offset, ret_val, hw->aq.asq_last_status);
break;
}
}
i40e_release_nvm(hw);
memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
free_buff:
kfree(eeprom_buff);
return ret_val;
}
static int i40e_get_eeprom_len(struct net_device *netdev)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_hw *hw = &np->vsi->back->hw;
u32 val;
val = (rd32(hw, I40E_GLPCI_LBARCTRL)
& I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)
>> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;
/* register returns value in power of 2, 64Kbyte chunks. */
val = (64 * 1024) * (1 << val);
return val;
}
static int i40e_set_eeprom(struct net_device *netdev,
struct ethtool_eeprom *eeprom, u8 *bytes)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_hw *hw = &np->vsi->back->hw;
struct i40e_pf *pf = np->vsi->back;
struct i40e_nvm_access *cmd;
int ret_val = 0;
int errno;
u32 magic;
/* normal ethtool set_eeprom is not supported */
magic = hw->vendor_id | (hw->device_id << 16);
if (eeprom->magic == magic)
return -EOPNOTSUPP;
/* check for NVMUpdate access method */
if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
return -EINVAL;
if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
return -EBUSY;
cmd = (struct i40e_nvm_access *)eeprom;
ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
if (ret_val &&
((hw->aq.asq_last_status != I40E_AQ_RC_EPERM &&
hw->aq.asq_last_status != I40E_AQ_RC_EBUSY) ||
(hw->debug_mask & I40E_DEBUG_NVM)))
dev_info(&pf->pdev->dev,
"NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
ret_val, hw->aq.asq_last_status, errno,
(u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
cmd->offset, cmd->data_size);
return errno;
}
static void i40e_get_drvinfo(struct net_device *netdev,
struct ethtool_drvinfo *drvinfo)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_vsi *vsi = np->vsi;
struct i40e_pf *pf = vsi->back;
strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
strlcpy(drvinfo->version, i40e_driver_version_str,
sizeof(drvinfo->version));
strlcpy(drvinfo->fw_version, i40e_fw_version_str(&pf->hw),
sizeof(drvinfo->fw_version));
strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
sizeof(drvinfo->bus_info));
drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN;
}
static void i40e_get_ringparam(struct net_device *netdev,
struct ethtool_ringparam *ring)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_pf *pf = np->vsi->back;
struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
ring->rx_mini_max_pending = 0;
ring->rx_jumbo_max_pending = 0;
ring->rx_pending = vsi->rx_rings[0]->count;
ring->tx_pending = vsi->tx_rings[0]->count;
ring->rx_mini_pending = 0;
ring->rx_jumbo_pending = 0;
}
static int i40e_set_ringparam(struct net_device *netdev,
struct ethtool_ringparam *ring)
{
struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_vsi *vsi = np->vsi;
struct i40e_pf *pf = vsi->back;
u32 new_rx_count, new_tx_count;
int i, err = 0;
if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
return -EINVAL;
if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS ||
ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS ||
ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
netdev_info(netdev,
"Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
ring->tx_pending, ring->rx_pending,
I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS);
return -EINVAL;
}
new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
/* if nothing to do return success */
if ((new_tx_count == vsi->tx_rings[0]->count) &&
(new_rx_count == vsi->rx_rings[0]->count))
return 0;
while (test_and_set_bit(__I40E_CONFIG_BUSY, &pf->state))
usleep_range(1000, 2000);
if (!netif_running(vsi->netdev)) {
/* simple case - set for the next time the netdev is started */
for (i = 0; i < vsi->num_queue_pairs; i++) {
vsi->tx_rings[i]->count = new_tx_count;
vsi->rx_rings[i]->count = new_rx_count;
}
goto done;
}
/* We can't just free everything and then setup again,
* because the ISRs in MSI-X mode get passed pointers
* to the Tx and Rx ring structs.
*/
/* alloc updated Tx resources */
if (new_tx_count != vsi->tx_rings[0]->count) {
netdev_info(netdev,
"Changing Tx descriptor count from %d to %d.\n",
vsi->tx_rings[0]->count, new_tx_count);
tx_rings = kcalloc(vsi->alloc_queue_pairs,
sizeof(struct i40e_ring), GFP_KERNEL);
if (!tx_rings) {
err = -ENOMEM;
goto done;
}
for (i = 0; i < vsi->num_queue_pairs; i++) {
/* clone ring and setup updated count */
tx_rings[i] = *vsi->tx_rings[i];
tx_rings[i].count = new_tx_count;
err = i40e_setup_tx_descriptors(&tx_rings[i]);
if (err) {
while (i) {
i--;
i40e_free_tx_resources(&tx_rings[i]);
}
kfree(tx_rings);
tx_rings = NULL;
goto done;
}
}
}
/* alloc updated Rx resources */
if (new_rx_count != vsi->rx_rings[0]->count) {
netdev_info(netdev,
"Changing Rx descriptor count from %d to %d\n",
vsi->rx_rings[0]->count, new_rx_count);
rx_rings = kcalloc(vsi->alloc_queue_pairs,
sizeof(struct i40e_ring), GFP_KERNEL);
if (!rx_rings) {
err = -ENOMEM;
goto free_tx;
}
for (i = 0; i < vsi->num_queue_pairs; i++) {
/* clone ring and setup updated count */
rx_rings[i] = *vsi->rx_rings[i];
rx_rings[i].count = new_rx_count;
err = i40e_setup_rx_descriptors(&rx_rings[i]);
if (err) {
while (i) {
i--;
i40e_free_rx_resources(&rx_rings[i]);
}
kfree(rx_rings);
rx_rings = NULL;
goto free_tx;
}
}
}
/* Bring interface down, copy in the new ring info,
* then restore the interface
*/
i40e_down(vsi);
if (tx_rings) {
for (i = 0; i < vsi->num_queue_pairs; i++) {
i40e_free_tx_resources(vsi->tx_rings[i]);
*vsi->tx_rings[i] = tx_rings[i];
}
kfree(tx_rings);
tx_rings = NULL;
}
if (rx_rings) {
for (i = 0; i < vsi->num_queue_pairs; i++) {
i40e_free_rx_resources(vsi->rx_rings[i]);
*vsi->rx_rings[i] = rx_rings[i];
}
kfree(rx_rings);
rx_rings = NULL;
}
i40e_up(vsi);
free_tx:
/* error cleanup if the Rx allocations failed after getting Tx */
if (tx_rings) {
for (i = 0; i < vsi->num_queue_pairs; i++)
i40e_free_tx_resources(&tx_rings[i]);
kfree(tx_rings);
tx_rings = NULL;
}
done:
clear_bit(__I40E_CONFIG_BUSY, &pf->state);
return err;
}
static int i40e_get_sset_count(struct net_device *netdev, int sset)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_vsi *vsi = np->vsi;
struct i40e_pf *pf = vsi->back;
switch (sset) {
case ETH_SS_TEST:
return I40E_TEST_LEN;
case ETH_SS_STATS:
if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) {
int len = I40E_PF_STATS_LEN(netdev);
if (pf->lan_veb != I40E_NO_VEB)
len += I40E_VEB_STATS_LEN;
return len;
} else {
return I40E_VSI_STATS_LEN(netdev);
}
case ETH_SS_PRIV_FLAGS:
return I40E_PRIV_FLAGS_STR_LEN;
default:
return -EOPNOTSUPP;
}
}
static void i40e_get_ethtool_stats(struct net_device *netdev,
struct ethtool_stats *stats, u64 *data)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_ring *tx_ring, *rx_ring;
struct i40e_vsi *vsi = np->vsi;
struct i40e_pf *pf = vsi->back;
int i = 0;
char *p;
int j;
struct rtnl_link_stats64 *net_stats = i40e_get_vsi_stats_struct(vsi);
unsigned int start;
i40e_update_stats(vsi);
for (j = 0; j < I40E_NETDEV_STATS_LEN; j++) {
p = (char *)net_stats + i40e_gstrings_net_stats[j].stat_offset;
data[i++] = (i40e_gstrings_net_stats[j].sizeof_stat ==
sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
}
for (j = 0; j < I40E_MISC_STATS_LEN; j++) {
p = (char *)vsi + i40e_gstrings_misc_stats[j].stat_offset;
data[i++] = (i40e_gstrings_misc_stats[j].sizeof_stat ==
sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
}
#ifdef I40E_FCOE
for (j = 0; j < I40E_FCOE_STATS_LEN; j++) {
p = (char *)vsi + i40e_gstrings_fcoe_stats[j].stat_offset;
data[i++] = (i40e_gstrings_fcoe_stats[j].sizeof_stat ==
sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
}
#endif
rcu_read_lock();
for (j = 0; j < vsi->num_queue_pairs; j++) {
tx_ring = ACCESS_ONCE(vsi->tx_rings[j]);
if (!tx_ring)
continue;
/* process Tx ring statistics */
do {
start = u64_stats_fetch_begin_irq(&tx_ring->syncp);
data[i] = tx_ring->stats.packets;
data[i + 1] = tx_ring->stats.bytes;
} while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start));
i += 2;
/* Rx ring is the 2nd half of the queue pair */
rx_ring = &tx_ring[1];
do {
start = u64_stats_fetch_begin_irq(&rx_ring->syncp);
data[i] = rx_ring->stats.packets;
data[i + 1] = rx_ring->stats.bytes;
} while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start));
i += 2;
}
rcu_read_unlock();
if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
return;
if (pf->lan_veb != I40E_NO_VEB) {
struct i40e_veb *veb = pf->veb[pf->lan_veb];
for (j = 0; j < I40E_VEB_STATS_LEN; j++) {
p = (char *)veb;
p += i40e_gstrings_veb_stats[j].stat_offset;
data[i++] = (i40e_gstrings_veb_stats[j].sizeof_stat ==
sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
}
}
for (j = 0; j < I40E_GLOBAL_STATS_LEN; j++) {
p = (char *)pf + i40e_gstrings_stats[j].stat_offset;
data[i++] = (i40e_gstrings_stats[j].sizeof_stat ==
sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
}
for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
data[i++] = pf->stats.priority_xon_tx[j];
data[i++] = pf->stats.priority_xoff_tx[j];
}
for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
data[i++] = pf->stats.priority_xon_rx[j];
data[i++] = pf->stats.priority_xoff_rx[j];
}
for (j = 0; j < I40E_MAX_USER_PRIORITY; j++)
data[i++] = pf->stats.priority_xon_2_xoff[j];
}
static void i40e_get_strings(struct net_device *netdev, u32 stringset,
u8 *data)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_vsi *vsi = np->vsi;
struct i40e_pf *pf = vsi->back;
char *p = (char *)data;
int i;
switch (stringset) {
case ETH_SS_TEST:
for (i = 0; i < I40E_TEST_LEN; i++) {
memcpy(data, i40e_gstrings_test[i], ETH_GSTRING_LEN);
data += ETH_GSTRING_LEN;
}
break;
case ETH_SS_STATS:
for (i = 0; i < I40E_NETDEV_STATS_LEN; i++) {
snprintf(p, ETH_GSTRING_LEN, "%s",
i40e_gstrings_net_stats[i].stat_string);
p += ETH_GSTRING_LEN;
}
for (i = 0; i < I40E_MISC_STATS_LEN; i++) {
snprintf(p, ETH_GSTRING_LEN, "%s",
i40e_gstrings_misc_stats[i].stat_string);
p += ETH_GSTRING_LEN;
}
#ifdef I40E_FCOE
for (i = 0; i < I40E_FCOE_STATS_LEN; i++) {
snprintf(p, ETH_GSTRING_LEN, "%s",
i40e_gstrings_fcoe_stats[i].stat_string);
p += ETH_GSTRING_LEN;
}
#endif
for (i = 0; i < vsi->num_queue_pairs; i++) {
snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_packets", i);
p += ETH_GSTRING_LEN;
snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_bytes", i);
p += ETH_GSTRING_LEN;
snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_packets", i);
p += ETH_GSTRING_LEN;
snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_bytes", i);
p += ETH_GSTRING_LEN;
}
if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
return;
if (pf->lan_veb != I40E_NO_VEB) {
for (i = 0; i < I40E_VEB_STATS_LEN; i++) {
snprintf(p, ETH_GSTRING_LEN, "veb.%s",
i40e_gstrings_veb_stats[i].stat_string);
p += ETH_GSTRING_LEN;
}
}
for (i = 0; i < I40E_GLOBAL_STATS_LEN; i++) {
snprintf(p, ETH_GSTRING_LEN, "port.%s",
i40e_gstrings_stats[i].stat_string);
p += ETH_GSTRING_LEN;
}
for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
snprintf(p, ETH_GSTRING_LEN,
"port.tx_priority_%u_xon", i);
p += ETH_GSTRING_LEN;
snprintf(p, ETH_GSTRING_LEN,
"port.tx_priority_%u_xoff", i);
p += ETH_GSTRING_LEN;
}
for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
snprintf(p, ETH_GSTRING_LEN,
"port.rx_priority_%u_xon", i);
p += ETH_GSTRING_LEN;
snprintf(p, ETH_GSTRING_LEN,
"port.rx_priority_%u_xoff", i);
p += ETH_GSTRING_LEN;
}
for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
snprintf(p, ETH_GSTRING_LEN,
"port.rx_priority_%u_xon_2_xoff", i);
p += ETH_GSTRING_LEN;
}
/* BUG_ON(p - data != I40E_STATS_LEN * ETH_GSTRING_LEN); */
break;
case ETH_SS_PRIV_FLAGS:
for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
memcpy(data, i40e_priv_flags_strings[i],
ETH_GSTRING_LEN);
data += ETH_GSTRING_LEN;
}
break;
default:
break;
}
}
static int i40e_get_ts_info(struct net_device *dev,
struct ethtool_ts_info *info)
{
struct i40e_pf *pf = i40e_netdev_to_pf(dev);
/* only report HW timestamping if PTP is enabled */
if (!(pf->flags & I40E_FLAG_PTP))
return ethtool_op_get_ts_info(dev, info);
info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
SOF_TIMESTAMPING_RX_SOFTWARE |
SOF_TIMESTAMPING_SOFTWARE |
SOF_TIMESTAMPING_TX_HARDWARE |
SOF_TIMESTAMPING_RX_HARDWARE |
SOF_TIMESTAMPING_RAW_HARDWARE;
if (pf->ptp_clock)
info->phc_index = ptp_clock_index(pf->ptp_clock);
else
info->phc_index = -1;
info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);
info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
(1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
(1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
(1 << HWTSTAMP_FILTER_PTP_V2_EVENT) |
(1 << HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
(1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
(1 << HWTSTAMP_FILTER_PTP_V2_SYNC) |
(1 << HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
(1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
(1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
(1 << HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ) |
(1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ);
return 0;
}
static int i40e_link_test(struct net_device *netdev, u64 *data)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_pf *pf = np->vsi->back;
netif_info(pf, hw, netdev, "link test\n");
if (i40e_get_link_status(&pf->hw))
*data = 0;
else
*data = 1;
return *data;
}
static int i40e_reg_test(struct net_device *netdev, u64 *data)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_pf *pf = np->vsi->back;
netif_info(pf, hw, netdev, "register test\n");
*data = i40e_diag_reg_test(&pf->hw);
return *data;
}
static int i40e_eeprom_test(struct net_device *netdev, u64 *data)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_pf *pf = np->vsi->back;
netif_info(pf, hw, netdev, "eeprom test\n");
*data = i40e_diag_eeprom_test(&pf->hw);
/* forcebly clear the NVM Update state machine */
pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;
return *data;
}
static int i40e_intr_test(struct net_device *netdev, u64 *data)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_pf *pf = np->vsi->back;
u16 swc_old = pf->sw_int_count;
netif_info(pf, hw, netdev, "interrupt test\n");
wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
(I40E_PFINT_DYN_CTL0_INTENA_MASK |
I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
usleep_range(1000, 2000);
*data = (swc_old == pf->sw_int_count);
return *data;
}
static int i40e_loopback_test(struct net_device *netdev, u64 *data)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_pf *pf = np->vsi->back;
netif_info(pf, hw, netdev, "loopback test not implemented\n");
*data = 0;
return *data;
}
static void i40e_diag_test(struct net_device *netdev,
struct ethtool_test *eth_test, u64 *data)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
bool if_running = netif_running(netdev);
struct i40e_pf *pf = np->vsi->back;
if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
/* Offline tests */
netif_info(pf, drv, netdev, "offline testing starting\n");
set_bit(__I40E_TESTING, &pf->state);
/* If the device is online then take it offline */
if (if_running)
/* indicate we're in test mode */
dev_close(netdev);
else
i40e_do_reset(pf, (1 << __I40E_PF_RESET_REQUESTED));
/* Link test performed before hardware reset
* so autoneg doesn't interfere with test result
*/
if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
eth_test->flags |= ETH_TEST_FL_FAILED;
if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
eth_test->flags |= ETH_TEST_FL_FAILED;
if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
eth_test->flags |= ETH_TEST_FL_FAILED;
if (i40e_loopback_test(netdev, &data[I40E_ETH_TEST_LOOPBACK]))
eth_test->flags |= ETH_TEST_FL_FAILED;
/* run reg test last, a reset is required after it */
if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
eth_test->flags |= ETH_TEST_FL_FAILED;
clear_bit(__I40E_TESTING, &pf->state);
i40e_do_reset(pf, (1 << __I40E_PF_RESET_REQUESTED));
if (if_running)
dev_open(netdev);
} else {
/* Online tests */
netif_info(pf, drv, netdev, "online testing starting\n");
if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
eth_test->flags |= ETH_TEST_FL_FAILED;
/* Offline only tests, not run in online; pass by default */
data[I40E_ETH_TEST_REG] = 0;
data[I40E_ETH_TEST_EEPROM] = 0;
data[I40E_ETH_TEST_INTR] = 0;
data[I40E_ETH_TEST_LOOPBACK] = 0;
}
netif_info(pf, drv, netdev, "testing finished\n");
}
static void i40e_get_wol(struct net_device *netdev,
struct ethtool_wolinfo *wol)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_pf *pf = np->vsi->back;
struct i40e_hw *hw = &pf->hw;
u16 wol_nvm_bits;
/* NVM bit on means WoL disabled for the port */
i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
if ((1 << hw->port) & wol_nvm_bits || hw->partition_id != 1) {
wol->supported = 0;
wol->wolopts = 0;
} else {
wol->supported = WAKE_MAGIC;
wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
}
}
/**
* i40e_set_wol - set the WakeOnLAN configuration
* @netdev: the netdev in question
* @wol: the ethtool WoL setting data
**/
static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_pf *pf = np->vsi->back;
struct i40e_vsi *vsi = np->vsi;
struct i40e_hw *hw = &pf->hw;
u16 wol_nvm_bits;
/* WoL not supported if this isn't the controlling PF on the port */
if (hw->partition_id != 1) {
i40e_partition_setting_complaint(pf);
return -EOPNOTSUPP;
}
if (vsi != pf->vsi[pf->lan_vsi])
return -EOPNOTSUPP;
/* NVM bit on means WoL disabled for the port */
i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
if (((1 << hw->port) & wol_nvm_bits))
return -EOPNOTSUPP;
/* only magic packet is supported */
if (wol->wolopts && (wol->wolopts != WAKE_MAGIC))
return -EOPNOTSUPP;
/* is this a new value? */
if (pf->wol_en != !!wol->wolopts) {
pf->wol_en = !!wol->wolopts;
device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
}
return 0;
}
static int i40e_set_phys_id(struct net_device *netdev,
enum ethtool_phys_id_state state)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_pf *pf = np->vsi->back;
struct i40e_hw *hw = &pf->hw;
int blink_freq = 2;
switch (state) {
case ETHTOOL_ID_ACTIVE:
pf->led_status = i40e_led_get(hw);
return blink_freq;
case ETHTOOL_ID_ON:
i40e_led_set(hw, 0xF, false);
break;
case ETHTOOL_ID_OFF:
i40e_led_set(hw, 0x0, false);
break;
case ETHTOOL_ID_INACTIVE:
i40e_led_set(hw, pf->led_status, false);
break;
default:
break;
}
return 0;
}
/* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
* Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
* 125us (8000 interrupts per second) == ITR(62)
*/
static int i40e_get_coalesce(struct net_device *netdev,
struct ethtool_coalesce *ec)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_vsi *vsi = np->vsi;
ec->tx_max_coalesced_frames_irq = vsi->work_limit;
ec->rx_max_coalesced_frames_irq = vsi->work_limit;
if (ITR_IS_DYNAMIC(vsi->rx_itr_setting))
ec->use_adaptive_rx_coalesce = 1;
if (ITR_IS_DYNAMIC(vsi->tx_itr_setting))
ec->use_adaptive_tx_coalesce = 1;
ec->rx_coalesce_usecs = vsi->rx_itr_setting & ~I40E_ITR_DYNAMIC;
ec->tx_coalesce_usecs = vsi->tx_itr_setting & ~I40E_ITR_DYNAMIC;
return 0;
}
static int i40e_set_coalesce(struct net_device *netdev,
struct ethtool_coalesce *ec)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_q_vector *q_vector;
struct i40e_vsi *vsi = np->vsi;
struct i40e_pf *pf = vsi->back;
struct i40e_hw *hw = &pf->hw;
u16 vector;
int i;
if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
vsi->work_limit = ec->tx_max_coalesced_frames_irq;
vector = vsi->base_vector;
if ((ec->rx_coalesce_usecs >= (I40E_MIN_ITR << 1)) &&
(ec->rx_coalesce_usecs <= (I40E_MAX_ITR << 1))) {
vsi->rx_itr_setting = ec->rx_coalesce_usecs;
} else if (ec->rx_coalesce_usecs == 0) {
vsi->rx_itr_setting = ec->rx_coalesce_usecs;
if (ec->use_adaptive_rx_coalesce)
netif_info(pf, drv, netdev, "rx-usecs=0, need to disable adaptive-rx for a complete disable\n");
} else {
netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
return -EINVAL;
}
if ((ec->tx_coalesce_usecs >= (I40E_MIN_ITR << 1)) &&
(ec->tx_coalesce_usecs <= (I40E_MAX_ITR << 1))) {
vsi->tx_itr_setting = ec->tx_coalesce_usecs;
} else if (ec->tx_coalesce_usecs == 0) {
vsi->tx_itr_setting = ec->tx_coalesce_usecs;
if (ec->use_adaptive_tx_coalesce)
netif_info(pf, drv, netdev, "tx-usecs=0, need to disable adaptive-tx for a complete disable\n");
} else {
netif_info(pf, drv, netdev,
"Invalid value, tx-usecs range is 0-8160\n");
return -EINVAL;
}
if (ec->use_adaptive_rx_coalesce)
vsi->rx_itr_setting |= I40E_ITR_DYNAMIC;
else
vsi->rx_itr_setting &= ~I40E_ITR_DYNAMIC;
if (ec->use_adaptive_tx_coalesce)
vsi->tx_itr_setting |= I40E_ITR_DYNAMIC;
else
vsi->tx_itr_setting &= ~I40E_ITR_DYNAMIC;
for (i = 0; i < vsi->num_q_vectors; i++, vector++) {
q_vector = vsi->q_vectors[i];
q_vector->rx.itr = ITR_TO_REG(vsi->rx_itr_setting);
wr32(hw, I40E_PFINT_ITRN(0, vector - 1), q_vector->rx.itr);
q_vector->tx.itr = ITR_TO_REG(vsi->tx_itr_setting);
wr32(hw, I40E_PFINT_ITRN(1, vector - 1), q_vector->tx.itr);
i40e_flush(hw);
}
return 0;
}
/**
* i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
* @pf: pointer to the physical function struct
* @cmd: ethtool rxnfc command
*
* Returns Success if the flow is supported, else Invalid Input.
**/
static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
{
cmd->data = 0;
if (pf->vsi[pf->lan_vsi]->rxnfc.data != 0) {
cmd->data = pf->vsi[pf->lan_vsi]->rxnfc.data;
cmd->flow_type = pf->vsi[pf->lan_vsi]->rxnfc.flow_type;
return 0;
}
/* Report default options for RSS on i40e */
switch (cmd->flow_type) {
case TCP_V4_FLOW:
case UDP_V4_FLOW:
cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
/* fall through to add IP fields */
case SCTP_V4_FLOW:
case AH_ESP_V4_FLOW:
case AH_V4_FLOW:
case ESP_V4_FLOW:
case IPV4_FLOW:
cmd->data |= RXH_IP_SRC | RXH_IP_DST;
break;
case TCP_V6_FLOW:
case UDP_V6_FLOW:
cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
/* fall through to add IP fields */
case SCTP_V6_FLOW:
case AH_ESP_V6_FLOW:
case AH_V6_FLOW:
case ESP_V6_FLOW:
case IPV6_FLOW:
cmd->data |= RXH_IP_SRC | RXH_IP_DST;
break;
default:
return -EINVAL;
}
return 0;
}
/**
* i40e_get_ethtool_fdir_all - Populates the rule count of a command
* @pf: Pointer to the physical function struct
* @cmd: The command to get or set Rx flow classification rules
* @rule_locs: Array of used rule locations
*
* This function populates both the total and actual rule count of
* the ethtool flow classification command
*
* Returns 0 on success or -EMSGSIZE if entry not found
**/
static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
struct ethtool_rxnfc *cmd,
u32 *rule_locs)
{
struct i40e_fdir_filter *rule;
struct hlist_node *node2;
int cnt = 0;
/* report total rule count */
cmd->data = i40e_get_fd_cnt_all(pf);
hlist_for_each_entry_safe(rule, node2,
&pf->fdir_filter_list, fdir_node) {
if (cnt == cmd->rule_cnt)
return -EMSGSIZE;
rule_locs[cnt] = rule->fd_id;
cnt++;
}
cmd->rule_cnt = cnt;
return 0;
}
/**
* i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
* @pf: Pointer to the physical function struct
* @cmd: The command to get or set Rx flow classification rules
*
* This function looks up a filter based on the Rx flow classification
* command and fills the flow spec info for it if found
*
* Returns 0 on success or -EINVAL if filter not found
**/
static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
struct ethtool_rxnfc *cmd)
{
struct ethtool_rx_flow_spec *fsp =
(struct ethtool_rx_flow_spec *)&cmd->fs;
struct i40e_fdir_filter *rule = NULL;
struct hlist_node *node2;
hlist_for_each_entry_safe(rule, node2,
&pf->fdir_filter_list, fdir_node) {
if (fsp->location <= rule->fd_id)
break;
}
if (!rule || fsp->location != rule->fd_id)
return -EINVAL;
fsp->flow_type = rule->flow_type;
if (fsp->flow_type == IP_USER_FLOW) {
fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
fsp->h_u.usr_ip4_spec.proto = 0;
fsp->m_u.usr_ip4_spec.proto = 0;
}
/* Reverse the src and dest notion, since the HW views them from
* Tx perspective where as the user expects it from Rx filter view.
*/
fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;
fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;
fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip[0];
fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip[0];
if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)
fsp->ring_cookie = RX_CLS_FLOW_DISC;
else
fsp->ring_cookie = rule->q_index;
return 0;
}
/**
* i40e_get_rxnfc - command to get RX flow classification rules
* @netdev: network interface device structure
* @cmd: ethtool rxnfc command
*
* Returns Success if the command is supported.
**/
static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
u32 *rule_locs)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_vsi *vsi = np->vsi;
struct i40e_pf *pf = vsi->back;
int ret = -EOPNOTSUPP;
switch (cmd->cmd) {
case ETHTOOL_GRXRINGS:
cmd->data = vsi->alloc_queue_pairs;
ret = 0;
break;
case ETHTOOL_GRXFH:
ret = i40e_get_rss_hash_opts(pf, cmd);
break;
case ETHTOOL_GRXCLSRLCNT:
cmd->rule_cnt = pf->fdir_pf_active_filters;
/* report total rule count */
cmd->data = i40e_get_fd_cnt_all(pf);
ret = 0;
break;
case ETHTOOL_GRXCLSRULE:
ret = i40e_get_ethtool_fdir_entry(pf, cmd);
break;
case ETHTOOL_GRXCLSRLALL:
ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
break;
default:
break;
}
return ret;
}
/**
* i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
* @pf: pointer to the physical function struct
* @cmd: ethtool rxnfc command
*
* Returns Success if the flow input set is supported.
**/
static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
{
struct i40e_hw *hw = &pf->hw;
u64 hena = (u64)rd32(hw, I40E_PFQF_HENA(0)) |
((u64)rd32(hw, I40E_PFQF_HENA(1)) << 32);
/* RSS does not support anything other than hashing
* to queues on src and dst IPs and ports
*/
if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
RXH_L4_B_0_1 | RXH_L4_B_2_3))
return -EINVAL;
/* We need at least the IP SRC and DEST fields for hashing */
if (!(nfc->data & RXH_IP_SRC) ||
!(nfc->data & RXH_IP_DST))
return -EINVAL;
switch (nfc->flow_type) {
case TCP_V4_FLOW:
switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
case 0:
hena &= ~((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
break;
case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
break;
default:
return -EINVAL;
}
break;
case TCP_V6_FLOW:
switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
case 0:
hena &= ~((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
break;
case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
break;
default:
return -EINVAL;
}
break;
case UDP_V4_FLOW:
switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
case 0:
hena &= ~(((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_UDP) |
((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4));
break;
case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
hena |= (((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_UDP) |
((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4));
break;
default:
return -EINVAL;
}
break;
case UDP_V6_FLOW:
switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
case 0:
hena &= ~(((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_UDP) |
((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6));
break;
case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
hena |= (((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_UDP) |
((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6));
break;
default:
return -EINVAL;
}
break;
case AH_ESP_V4_FLOW:
case AH_V4_FLOW:
case ESP_V4_FLOW:
case SCTP_V4_FLOW:
if ((nfc->data & RXH_L4_B_0_1) ||
(nfc->data & RXH_L4_B_2_3))
return -EINVAL;
hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
break;
case AH_ESP_V6_FLOW:
case AH_V6_FLOW:
case ESP_V6_FLOW:
case SCTP_V6_FLOW:
if ((nfc->data & RXH_L4_B_0_1) ||
(nfc->data & RXH_L4_B_2_3))
return -EINVAL;
hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
break;
case IPV4_FLOW:
hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4);
break;
case IPV6_FLOW:
hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6);
break;
default:
return -EINVAL;
}
wr32(hw, I40E_PFQF_HENA(0), (u32)hena);
wr32(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
i40e_flush(hw);
/* Save setting for future output/update */
pf->vsi[pf->lan_vsi]->rxnfc = *nfc;
return 0;
}
/**
* i40e_match_fdir_input_set - Match a new filter against an existing one
* @rule: The filter already added
* @input: The new filter to comapre against
*
* Returns true if the two input set match
**/
static bool i40e_match_fdir_input_set(struct i40e_fdir_filter *rule,
struct i40e_fdir_filter *input)
{
if ((rule->dst_ip[0] != input->dst_ip[0]) ||
(rule->src_ip[0] != input->src_ip[0]) ||
(rule->dst_port != input->dst_port) ||
(rule->src_port != input->src_port))
return false;
return true;
}
/**
* i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
* @vsi: Pointer to the targeted VSI
* @input: The filter to update or NULL to indicate deletion
* @sw_idx: Software index to the filter
* @cmd: The command to get or set Rx flow classification rules
*
* This function updates (or deletes) a Flow Director entry from
* the hlist of the corresponding PF
*
* Returns 0 on success
**/
static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
struct i40e_fdir_filter *input,
u16 sw_idx,
struct ethtool_rxnfc *cmd)
{
struct i40e_fdir_filter *rule, *parent;
struct i40e_pf *pf = vsi->back;
struct hlist_node *node2;
int err = -EINVAL;
parent = NULL;
rule = NULL;
hlist_for_each_entry_safe(rule, node2,
&pf->fdir_filter_list, fdir_node) {
/* hash found, or no matching entry */
if (rule->fd_id >= sw_idx)
break;
parent = rule;
}
/* if there is an old rule occupying our place remove it */
if (rule && (rule->fd_id == sw_idx)) {
if (input && !i40e_match_fdir_input_set(rule, input))
err = i40e_add_del_fdir(vsi, rule, false);
else if (!input)
err = i40e_add_del_fdir(vsi, rule, false);
hlist_del(&rule->fdir_node);
kfree(rule);
pf->fdir_pf_active_filters--;
}
/* If no input this was a delete, err should be 0 if a rule was
* successfully found and removed from the list else -EINVAL
*/
if (!input)
return err;
/* initialize node and set software index */
INIT_HLIST_NODE(&input->fdir_node);
/* add filter to the list */
if (parent)
hlist_add_behind(&input->fdir_node, &parent->fdir_node);
else
hlist_add_head(&input->fdir_node,
&pf->fdir_filter_list);
/* update counts */
pf->fdir_pf_active_filters++;
return 0;
}
/**
* i40e_del_fdir_entry - Deletes a Flow Director filter entry
* @vsi: Pointer to the targeted VSI
* @cmd: The command to get or set Rx flow classification rules
*
* The function removes a Flow Director filter entry from the
* hlist of the corresponding PF
*
* Returns 0 on success
*/
static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
struct ethtool_rxnfc *cmd)
{
struct ethtool_rx_flow_spec *fsp =
(struct ethtool_rx_flow_spec *)&cmd->fs;
struct i40e_pf *pf = vsi->back;
int ret = 0;
if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
return -EBUSY;
if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
return -EBUSY;
ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
i40e_fdir_check_and_reenable(pf);
return ret;
}
/**
* i40e_add_fdir_ethtool - Add/Remove Flow Director filters
* @vsi: pointer to the targeted VSI
* @cmd: command to get or set RX flow classification rules
*
* Add Flow Director filters for a specific flow spec based on their
* protocol. Returns 0 if the filters were successfully added.
**/
static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
struct ethtool_rxnfc *cmd)
{
struct ethtool_rx_flow_spec *fsp;
struct i40e_fdir_filter *input;
struct i40e_pf *pf;
int ret = -EINVAL;
if (!vsi)
return -EINVAL;
pf = vsi->back;
if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
return -EOPNOTSUPP;
if (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED)
return -ENOSPC;
if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
return -EBUSY;
if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
return -EBUSY;
fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
pf->hw.func_caps.fd_filters_guaranteed)) {
return -EINVAL;
}
if ((fsp->ring_cookie != RX_CLS_FLOW_DISC) &&
(fsp->ring_cookie >= vsi->num_queue_pairs))
return -EINVAL;
input = kzalloc(sizeof(*input), GFP_KERNEL);
if (!input)
return -ENOMEM;
input->fd_id = fsp->location;
if (fsp->ring_cookie == RX_CLS_FLOW_DISC)
input->dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
else
input->dest_ctl =
I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
input->q_index = fsp->ring_cookie;
input->flex_off = 0;
input->pctype = 0;
input->dest_vsi = vsi->id;
input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
input->cnt_index = pf->fd_sb_cnt_idx;
input->flow_type = fsp->flow_type;
input->ip4_proto = fsp->h_u.usr_ip4_spec.proto;
/* Reverse the src and dest notion, since the HW expects them to be from
* Tx perspective where as the input from user is from Rx filter view.
*/
input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;
input->src_port = fsp->h_u.tcp_ip4_spec.pdst;
input->dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src;
input->src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst;
ret = i40e_add_del_fdir(vsi, input, true);
if (ret)
kfree(input);
else
i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
return ret;
}
/**
* i40e_set_rxnfc - command to set RX flow classification rules
* @netdev: network interface device structure
* @cmd: ethtool rxnfc command
*
* Returns Success if the command is supported.
**/
static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_vsi *vsi = np->vsi;
struct i40e_pf *pf = vsi->back;
int ret = -EOPNOTSUPP;
switch (cmd->cmd) {
case ETHTOOL_SRXFH:
ret = i40e_set_rss_hash_opt(pf, cmd);
break;
case ETHTOOL_SRXCLSRLINS:
ret = i40e_add_fdir_ethtool(vsi, cmd);
break;
case ETHTOOL_SRXCLSRLDEL:
ret = i40e_del_fdir_entry(vsi, cmd);
break;
default:
break;
}
return ret;
}
/**
* i40e_max_channels - get Max number of combined channels supported
* @vsi: vsi pointer
**/
static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
{
/* TODO: This code assumes DCB and FD is disabled for now. */
return vsi->alloc_queue_pairs;
}
/**
* i40e_get_channels - Get the current channels enabled and max supported etc.
* @netdev: network interface device structure
* @ch: ethtool channels structure
*
* We don't support separate tx and rx queues as channels. The other count
* represents how many queues are being used for control. max_combined counts
* how many queue pairs we can support. They may not be mapped 1 to 1 with
* q_vectors since we support a lot more queue pairs than q_vectors.
**/
static void i40e_get_channels(struct net_device *dev,
struct ethtool_channels *ch)
{
struct i40e_netdev_priv *np = netdev_priv(dev);
struct i40e_vsi *vsi = np->vsi;
struct i40e_pf *pf = vsi->back;
/* report maximum channels */
ch->max_combined = i40e_max_channels(vsi);
/* report info for other vector */
ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0;
ch->max_other = ch->other_count;
/* Note: This code assumes DCB is disabled for now. */
ch->combined_count = vsi->num_queue_pairs;
}
/**
* i40e_set_channels - Set the new channels count.
* @netdev: network interface device structure
* @ch: ethtool channels structure
*
* The new channels count may not be the same as requested by the user
* since it gets rounded down to a power of 2 value.
**/
static int i40e_set_channels(struct net_device *dev,
struct ethtool_channels *ch)
{
struct i40e_netdev_priv *np = netdev_priv(dev);
unsigned int count = ch->combined_count;
struct i40e_vsi *vsi = np->vsi;
struct i40e_pf *pf = vsi->back;
int new_count;
/* We do not support setting channels for any other VSI at present */
if (vsi->type != I40E_VSI_MAIN)
return -EINVAL;
/* verify they are not requesting separate vectors */
if (!count || ch->rx_count || ch->tx_count)
return -EINVAL;
/* verify other_count has not changed */
if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
return -EINVAL;
/* verify the number of channels does not exceed hardware limits */
if (count > i40e_max_channels(vsi))
return -EINVAL;
/* update feature limits from largest to smallest supported values */
/* TODO: Flow director limit, DCB etc */
/* use rss_reconfig to rebuild with new queue count and update traffic
* class queue mapping
*/
new_count = i40e_reconfig_rss_queues(pf, count);
if (new_count > 0)
return 0;
else
return -EINVAL;
}
#define I40E_HLUT_ARRAY_SIZE ((I40E_PFQF_HLUT_MAX_INDEX + 1) * 4)
/**
* i40e_get_rxfh_key_size - get the RSS hash key size
* @netdev: network interface device structure
*
* Returns the table size.
**/
static u32 i40e_get_rxfh_key_size(struct net_device *netdev)
{
return I40E_HKEY_ARRAY_SIZE;
}
/**
* i40e_get_rxfh_indir_size - get the rx flow hash indirection table size
* @netdev: network interface device structure
*
* Returns the table size.
**/
static u32 i40e_get_rxfh_indir_size(struct net_device *netdev)
{
return I40E_HLUT_ARRAY_SIZE;
}
static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
u8 *hfunc)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_vsi *vsi = np->vsi;
struct i40e_pf *pf = vsi->back;
struct i40e_hw *hw = &pf->hw;
u32 reg_val;
int i, j;
if (hfunc)
*hfunc = ETH_RSS_HASH_TOP;
if (!indir)
return 0;
for (i = 0, j = 0; i <= I40E_PFQF_HLUT_MAX_INDEX; i++) {
reg_val = rd32(hw, I40E_PFQF_HLUT(i));
indir[j++] = reg_val & 0xff;
indir[j++] = (reg_val >> 8) & 0xff;
indir[j++] = (reg_val >> 16) & 0xff;
indir[j++] = (reg_val >> 24) & 0xff;
}
if (key) {
for (i = 0, j = 0; i <= I40E_PFQF_HKEY_MAX_INDEX; i++) {
reg_val = rd32(hw, I40E_PFQF_HKEY(i));
key[j++] = (u8)(reg_val & 0xff);
key[j++] = (u8)((reg_val >> 8) & 0xff);
key[j++] = (u8)((reg_val >> 16) & 0xff);
key[j++] = (u8)((reg_val >> 24) & 0xff);
}
}
return 0;
}
/**
* i40e_set_rxfh - set the rx flow hash indirection table
* @netdev: network interface device structure
* @indir: indirection table
* @key: hash key
*
* Returns -EINVAL if the table specifies an inavlid queue id, otherwise
* returns 0 after programming the table.
**/
static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir,
const u8 *key, const u8 hfunc)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_vsi *vsi = np->vsi;
struct i40e_pf *pf = vsi->back;
struct i40e_hw *hw = &pf->hw;
u32 reg_val;
int i, j;
if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
return -EOPNOTSUPP;
if (!indir)
return 0;
for (i = 0, j = 0; i <= I40E_PFQF_HLUT_MAX_INDEX; i++) {
reg_val = indir[j++];
reg_val |= indir[j++] << 8;
reg_val |= indir[j++] << 16;
reg_val |= indir[j++] << 24;
wr32(hw, I40E_PFQF_HLUT(i), reg_val);
}
if (key) {
for (i = 0, j = 0; i <= I40E_PFQF_HKEY_MAX_INDEX; i++) {
reg_val = key[j++];
reg_val |= key[j++] << 8;
reg_val |= key[j++] << 16;
reg_val |= key[j++] << 24;
wr32(hw, I40E_PFQF_HKEY(i), reg_val);
}
}
return 0;
}
/**
* i40e_get_priv_flags - report device private flags
* @dev: network interface device structure
*
* The get string set count and the string set should be matched for each
* flag returned. Add new strings for each flag to the i40e_priv_flags_strings
* array.
*
* Returns a u32 bitmap of flags.
**/
static u32 i40e_get_priv_flags(struct net_device *dev)
{
struct i40e_netdev_priv *np = netdev_priv(dev);
struct i40e_vsi *vsi = np->vsi;
struct i40e_pf *pf = vsi->back;
u32 ret_flags = 0;
ret_flags |= pf->hw.func_caps.npar_enable ?
I40E_PRIV_FLAGS_NPAR_FLAG : 0;
return ret_flags;
}
static const struct ethtool_ops i40e_ethtool_ops = {
.get_settings = i40e_get_settings,
.set_settings = i40e_set_settings,
.get_drvinfo = i40e_get_drvinfo,
.get_regs_len = i40e_get_regs_len,
.get_regs = i40e_get_regs,
.nway_reset = i40e_nway_reset,
.get_link = ethtool_op_get_link,
.get_wol = i40e_get_wol,
.set_wol = i40e_set_wol,
.set_eeprom = i40e_set_eeprom,
.get_eeprom_len = i40e_get_eeprom_len,
.get_eeprom = i40e_get_eeprom,
.get_ringparam = i40e_get_ringparam,
.set_ringparam = i40e_set_ringparam,
.get_pauseparam = i40e_get_pauseparam,
.set_pauseparam = i40e_set_pauseparam,
.get_msglevel = i40e_get_msglevel,
.set_msglevel = i40e_set_msglevel,
.get_rxnfc = i40e_get_rxnfc,
.set_rxnfc = i40e_set_rxnfc,
.self_test = i40e_diag_test,
.get_strings = i40e_get_strings,
.set_phys_id = i40e_set_phys_id,
.get_sset_count = i40e_get_sset_count,
.get_ethtool_stats = i40e_get_ethtool_stats,
.get_coalesce = i40e_get_coalesce,
.set_coalesce = i40e_set_coalesce,
.get_rxfh_key_size = i40e_get_rxfh_key_size,
.get_rxfh_indir_size = i40e_get_rxfh_indir_size,
.get_rxfh = i40e_get_rxfh,
.set_rxfh = i40e_set_rxfh,
.get_channels = i40e_get_channels,
.set_channels = i40e_set_channels,
.get_ts_info = i40e_get_ts_info,
.get_priv_flags = i40e_get_priv_flags,
};
void i40e_set_ethtool_ops(struct net_device *netdev)
{
netdev->ethtool_ops = &i40e_ethtool_ops;
}