i40e_ethtool.c 70.8 KB
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/*******************************************************************************
 *
 * Intel Ethernet Controller XL710 Family Linux Driver
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 * Copyright(c) 2013 - 2015 Intel Corporation.
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 *
 * 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.
 *
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 * You should have received a copy of the GNU General Public License along
 * with this program.  If not, see <http://www.gnu.org/licenses/>.
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 *
 * The full GNU General Public License is included in this distribution in
 * the file called "COPYING".
 *
 * Contact Information:
 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
 * 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) \
}
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#define I40E_NETDEV_STAT(_net_stat) \
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		I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat)
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#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)
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#define I40E_VEB_STAT(_name, _stat) \
		I40E_STAT(struct i40e_veb, _name, _stat)
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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),
};

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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),
};

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static const struct i40e_stats i40e_gstrings_misc_stats[] = {
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	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),
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	I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
	I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
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	I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
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};

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static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
				 struct ethtool_rxnfc *cmd);
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/* 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),
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	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),
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	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),
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	I40E_PF_STAT("tx_timeout", tx_timeout_count),
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	I40E_PF_STAT("rx_csum_bad", hw_csum_rx_error),
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	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),
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	I40E_PF_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
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	I40E_PF_STAT("fdir_flush_cnt", fd_flush_cnt),
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	I40E_PF_STAT("fdir_atr_match", stats.fd_atr_match),
	I40E_PF_STAT("fdir_sb_match", stats.fd_sb_match),

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	/* 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),
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};

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#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 */
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#define I40E_QUEUE_STATS_LEN(n) \
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	(((struct i40e_netdev_priv *)netdev_priv((n)))->vsi->num_queue_pairs \
	    * 2 /* Tx and Rx together */                                     \
	    * (sizeof(struct i40e_queue_stats) / sizeof(u64)))
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#define I40E_GLOBAL_STATS_LEN	ARRAY_SIZE(i40e_gstrings_stats)
#define I40E_NETDEV_STATS_LEN   ARRAY_SIZE(i40e_gstrings_net_stats)
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#define I40E_MISC_STATS_LEN	ARRAY_SIZE(i40e_gstrings_misc_stats)
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#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
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#define I40E_VSI_STATS_LEN(n)   (I40E_NETDEV_STATS_LEN + \
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				 I40E_MISC_STATS_LEN + \
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				 I40E_QUEUE_STATS_LEN((n)))
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#endif /* I40E_FCOE */
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#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))
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#define I40E_VEB_STATS_LEN	ARRAY_SIZE(i40e_gstrings_veb_stats)
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#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)

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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)

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/**
 * 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");
}

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/**
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 * i40e_get_settings_link_up - Get the Link settings for when link is up
 * @hw: hw structure
 * @ecmd: ethtool command to fill in
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 * @netdev: network interface device structure
 *
 **/
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static void i40e_get_settings_link_up(struct i40e_hw *hw,
				      struct ethtool_cmd *ecmd,
				      struct net_device *netdev)
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{
	struct i40e_link_status *hw_link_info = &hw->phy.link_info;
	u32 link_speed = hw_link_info->link_speed;

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	/* Initialize supported and advertised settings based on phy settings */
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	switch (hw_link_info->phy_type) {
	case I40E_PHY_TYPE_40GBASE_CR4:
	case I40E_PHY_TYPE_40GBASE_CR4_CU:
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		ecmd->supported = SUPPORTED_Autoneg |
				  SUPPORTED_40000baseCR4_Full;
		ecmd->advertising = ADVERTISED_Autoneg |
				    ADVERTISED_40000baseCR4_Full;
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		break;
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	case I40E_PHY_TYPE_XLAUI:
	case I40E_PHY_TYPE_XLPPI:
		ecmd->supported = SUPPORTED_40000baseCR4_Full;
		break;
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	case I40E_PHY_TYPE_40GBASE_KR4:
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		ecmd->supported = SUPPORTED_Autoneg |
				  SUPPORTED_40000baseKR4_Full;
		ecmd->advertising = ADVERTISED_Autoneg |
				    ADVERTISED_40000baseKR4_Full;
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		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:
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		ecmd->supported = SUPPORTED_Autoneg |
				  SUPPORTED_10000baseKX4_Full;
		ecmd->advertising = ADVERTISED_Autoneg |
				    ADVERTISED_10000baseKX4_Full;
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		break;
	case I40E_PHY_TYPE_10GBASE_KR:
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		ecmd->supported = SUPPORTED_Autoneg |
				  SUPPORTED_10000baseKR_Full;
		ecmd->advertising = ADVERTISED_Autoneg |
				    ADVERTISED_10000baseKR_Full;
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		break;
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	case I40E_PHY_TYPE_10GBASE_SR:
	case I40E_PHY_TYPE_10GBASE_LR:
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	case I40E_PHY_TYPE_1000BASE_SX:
	case I40E_PHY_TYPE_1000BASE_LX:
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		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;
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		break;
	case I40E_PHY_TYPE_10GBASE_T:
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	case I40E_PHY_TYPE_1000BASE_T:
	case I40E_PHY_TYPE_100BASE_TX:
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		ecmd->supported = SUPPORTED_Autoneg |
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				  SUPPORTED_10000baseT_Full |
				  SUPPORTED_1000baseT_Full |
				  SUPPORTED_100baseT_Full;
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		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;
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		ecmd->advertising = ADVERTISED_Autoneg |
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				    ADVERTISED_10000baseT_Full;
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		break;
	case I40E_PHY_TYPE_XAUI:
	case I40E_PHY_TYPE_XFI:
	case I40E_PHY_TYPE_SFI:
	case I40E_PHY_TYPE_10GBASE_SFPP_CU:
		ecmd->supported = SUPPORTED_10000baseT_Full;
		break;
	case I40E_PHY_TYPE_SGMII:
		ecmd->supported = SUPPORTED_Autoneg |
				  SUPPORTED_1000baseT_Full |
				  SUPPORTED_100baseT_Full;
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		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;
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		break;
	default:
		/* if we got here and link is up something bad is afoot */
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		netdev_info(netdev, "WARNING: Link is up but PHY type 0x%x is not recognized.\n",
			    hw_link_info->phy_type);
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	}

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	/* 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 */
460 461
	ecmd->autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
			  AUTONEG_ENABLE : AUTONEG_DISABLE);
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463 464
	switch (hw->phy.media_type) {
	case I40E_MEDIA_TYPE_BACKPLANE:
465 466 467 468
		ecmd->supported |= SUPPORTED_Autoneg |
				   SUPPORTED_Backplane;
		ecmd->advertising |= ADVERTISED_Autoneg |
				     ADVERTISED_Backplane;
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		ecmd->port = PORT_NONE;
470 471
		break;
	case I40E_MEDIA_TYPE_BASET:
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		ecmd->supported |= SUPPORTED_TP;
		ecmd->advertising |= ADVERTISED_TP;
		ecmd->port = PORT_TP;
475 476 477
		break;
	case I40E_MEDIA_TYPE_DA:
	case I40E_MEDIA_TYPE_CX4:
478 479 480
		ecmd->supported |= SUPPORTED_FIBRE;
		ecmd->advertising |= ADVERTISED_FIBRE;
		ecmd->port = PORT_DA;
481 482
		break;
	case I40E_MEDIA_TYPE_FIBER:
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		ecmd->supported |= SUPPORTED_FIBRE;
		ecmd->port = PORT_FIBRE;
485 486 487 488 489
		break;
	case I40E_MEDIA_TYPE_UNKNOWN:
	default:
		ecmd->port = PORT_OTHER;
		break;
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	}

492
	/* Set transceiver */
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	ecmd->transceiver = XCVR_EXTERNAL;

495
	/* Set flow control settings */
496 497
	ecmd->supported |= SUPPORTED_Pause;

498
	switch (hw->fc.requested_mode) {
499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514
	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;
	}

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	return 0;
}

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/**
 * 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;

541 542 543 544 545 546 547 548
	/* 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;
	}

549 550 551 552 553
	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 &&
554 555
	    hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE &&
	    hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585
		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;

586
	/* Copy abilities to config in case autoneg is not
587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615
	 * 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) {
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			config.abilities = abilities.abilities &
617 618 619 620 621 622 623 624 625
					   ~I40E_AQ_PHY_ENABLE_AN;
			change = true;
		}
	}

	if (advertise & ~safe_ecmd.supported)
		return -EINVAL;

	if (advertise & ADVERTISED_100baseT_Full)
626
		config.link_speed |= I40E_LINK_SPEED_100MB;
627 628
	if (advertise & ADVERTISED_1000baseT_Full ||
	    advertise & ADVERTISED_1000baseKX_Full)
629
		config.link_speed |= I40E_LINK_SPEED_1GB;
630 631 632
	if (advertise & ADVERTISED_10000baseT_Full ||
	    advertise & ADVERTISED_10000baseKX4_Full ||
	    advertise & ADVERTISED_10000baseKR_Full)
633
		config.link_speed |= I40E_LINK_SPEED_10GB;
634 635 636 637
	if (advertise & ADVERTISED_40000baseKR4_Full ||
	    advertise & ADVERTISED_40000baseCR4_Full ||
	    advertise & ADVERTISED_40000baseSR4_Full ||
	    advertise & ADVERTISED_40000baseLR4_Full)
638
		config.link_speed |= I40E_LINK_SPEED_40GB;
639

640
	if (change || (abilities.link_speed != config.link_speed)) {
641 642 643 644 645 646
		/* 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;

647 648
		/* save the requested speeds */
		hw->phy.link_info.requested_speeds = config.link_speed;
649 650 651 652 653 654 655 656 657 658 659
		/* 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);
		}
660 661 662 663 664 665 666 667 668

		/* 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;
		}

669
		status = i40e_aq_get_link_info(hw, true, NULL, NULL);
670 671 672 673 674 675 676 677 678 679 680
		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;
}

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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;
}

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/**
 * 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;
711
	struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
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	pause->autoneg =
		((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
		  AUTONEG_ENABLE : AUTONEG_DISABLE);

717 718 719 720 721 722 723
	/* PFC enabled so report LFC as off */
	if (dcbx_cfg->pfc.pfcenable) {
		pause->rx_pause = 0;
		pause->tx_pause = 0;
		return;
	}

724
	if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
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		pause->rx_pause = 1;
726
	} else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
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		pause->tx_pause = 1;
728 729 730 731
	} else if (hw->fc.current_mode == I40E_FC_FULL) {
		pause->rx_pause = 1;
		pause->tx_pause = 1;
	}
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}

734 735 736 737 738 739 740 741 742 743 744 745 746
/**
 * 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;
747
	struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
748 749 750
	bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
	i40e_status status;
	u8 aq_failures;
751
	int err = 0;
752

753 754 755 756 757 758 759 760
	/* 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;
	}

761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776
	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 <dev> autoneg <on|off>\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");
	}

777 778 779
	if (dcbx_cfg->pfc.pfcenable) {
		netdev_info(netdev,
			    "Priority flow control enabled. Cannot set link flow control.\n");
780 781 782 783 784 785 786 787 788 789 790 791 792 793
		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;

794 795 796 797 798 799 800
	/* 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);

801 802 803 804 805 806 807 808 809 810 811 812 813 814
	/* 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) {
815
		netdev_info(netdev, "Set fc failed on the get_link_info call with error %d and status %d\n",
816 817 818 819
			    status, hw->aq.asq_last_status);
		err = -EAGAIN;
	}

820 821 822 823 824 825
	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);
	}
826 827 828 829

	return err;
}

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830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894
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;
895
	struct i40e_pf *pf = np->vsi->back;
896
	int ret_val = 0, len, offset;
897 898 899
	u8 *eeprom_buff;
	u16 i, sectors;
	bool last;
900 901
	u32 magic;

902
#define I40E_NVM_SECTOR_SIZE  4096
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	if (eeprom->len == 0)
		return -EINVAL;

906 907 908
	/* check for NVMUpdate access method */
	magic = hw->vendor_id | (hw->device_id << 16);
	if (eeprom->magic && eeprom->magic != magic) {
909
		struct i40e_nvm_access *cmd;
910 911 912 913 914 915
		int errno;

		/* make sure it is the right magic for NVMUpdate */
		if ((eeprom->magic >> 16) != hw->device_id)
			return -EINVAL;

916 917
		cmd = (struct i40e_nvm_access *)eeprom;
		ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
918 919
		if (ret_val)
			dev_info(&pf->pdev->dev,
920 921 922 923
				 "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);
924 925 926 927 928

		return errno;
	}

	/* normal ethtool get_eeprom support */
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	eeprom->magic = hw->vendor_id | (hw->device_id << 16);

931
	eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
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	if (!eeprom_buff)
		return -ENOMEM;

935 936 937 938 939 940
	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;
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	}

943 944 945 946 947 948 949 950 951
	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;
		}
952 953
		offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
		ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
954
				(u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
955
				last, NULL);
956
		if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
957
			dev_info(&pf->pdev->dev,
958 959 960 961 962 963 964 965 966 967 968 969 970 971
				 "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;
972 973
		}
	}
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975
	i40e_release_nvm(hw);
976
	memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
977
free_buff:
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	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;
986 987 988 989 990 991 992 993
	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;
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}

996 997 998 999 1000 1001
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;
1002
	struct i40e_nvm_access *cmd;
1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019
	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;

1020 1021 1022
	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_EBUSY)
1023
		dev_info(&pf->pdev->dev,
1024 1025 1026 1027
			 "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);
1028 1029 1030 1031

	return errno;
}

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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));
1046
	drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN;
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}

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;
1060 1061
	ring->rx_pending = vsi->rx_rings[0]->count;
	ring->tx_pending = vsi->tx_rings[0]->count;
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1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078
	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;

1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091
	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);
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	/* if nothing to do return success */
1094 1095
	if ((new_tx_count == vsi->tx_rings[0]->count) &&
	    (new_rx_count == vsi->rx_rings[0]->count))
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		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++) {
1104 1105
			vsi->tx_rings[i]->count = new_tx_count;
			vsi->rx_rings[i]->count = new_rx_count;
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		}
		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 */
1116
	if (new_tx_count != vsi->tx_rings[0]->count) {
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		netdev_info(netdev,
			    "Changing Tx descriptor count from %d to %d.\n",
1119
			    vsi->tx_rings[0]->count, new_tx_count);
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		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 */
1129
			tx_rings[i] = *vsi->tx_rings[i];
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			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 */
1146
	if (new_rx_count != vsi->rx_rings[0]->count) {
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		netdev_info(netdev,
			    "Changing Rx descriptor count from %d to %d\n",
1149
			    vsi->rx_rings[0]->count, new_rx_count);
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		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 */
1159
			rx_rings[i] = *vsi->rx_rings[i];
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			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++) {
1182 1183
			i40e_free_tx_resources(vsi->tx_rings[i]);
			*vsi->tx_rings[i] = tx_rings[i];
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		}
		kfree(tx_rings);
		tx_rings = NULL;
	}

	if (rx_rings) {
		for (i = 0; i < vsi->num_queue_pairs; i++) {
1191 1192
			i40e_free_rx_resources(vsi->rx_rings[i]);
			*vsi->rx_rings[i] = rx_rings[i];
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		}
		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:
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		if (vsi == pf->vsi[pf->lan_vsi]) {
			int len = I40E_PF_STATS_LEN(netdev);

			if (pf->lan_veb != I40E_NO_VEB)
				len += I40E_VEB_STATS_LEN;
			return len;
		} else {
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			return I40E_VSI_STATS_LEN(netdev);
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		}
1234 1235
	case ETH_SS_PRIV_FLAGS:
		return I40E_PRIV_FLAGS_STR_LEN;
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	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);
1245
	struct i40e_ring *tx_ring, *rx_ring;
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	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);
1252
	unsigned int start;
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	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;
	}
1261 1262 1263 1264 1265
	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;
	}
1266 1267 1268 1269 1270 1271 1272
#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
1273
	rcu_read_lock();
1274
	for (j = 0; j < vsi->num_queue_pairs; j++) {
1275
		tx_ring = ACCESS_ONCE(vsi->tx_rings[j]);
1276 1277 1278 1279 1280 1281

		if (!tx_ring)
			continue;

		/* process Tx ring statistics */
		do {
1282
			start = u64_stats_fetch_begin_irq(&tx_ring->syncp);
1283 1284
			data[i] = tx_ring->stats.packets;
			data[i + 1] = tx_ring->stats.bytes;
1285
		} while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start));
1286
		i += 2;
1287 1288 1289 1290

		/* Rx ring is the 2nd half of the queue pair */
		rx_ring = &tx_ring[1];
		do {
1291
			start = u64_stats_fetch_begin_irq(&rx_ring->syncp);
1292 1293
			data[i] = rx_ring->stats.packets;
			data[i + 1] = rx_ring->stats.bytes;
1294
		} while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start));
1295
		i += 2;
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	}
1297
	rcu_read_unlock();
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	if (vsi != pf->vsi[pf->lan_vsi])
		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;
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		}
	}
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	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];
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}

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;
		}
1349 1350 1351 1352 1353
		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;
		}
1354 1355 1356 1357 1358 1359 1360
#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
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		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;
		}
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		if (vsi != pf->vsi[pf->lan_vsi])
			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);
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				p += ETH_GSTRING_LEN;
			}
		}
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		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;
		}
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		/* BUG_ON(p - data != I40E_STATS_LEN * ETH_GSTRING_LEN); */
		break;
1409 1410 1411 1412 1413 1414 1415
	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;
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	}
}

static int i40e_get_ts_info(struct net_device *dev,
			    struct ethtool_ts_info *info)
{
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Jacob Keller 已提交
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	struct i40e_pf *pf = i40e_netdev_to_pf(dev);

1424 1425 1426 1427
	/* only report HW timestamping if PTP is enabled */
	if (!(pf->flags & I40E_FLAG_PTP))
		return ethtool_op_get_ts_info(dev, info);

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	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;
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}

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static int i40e_link_test(struct net_device *netdev, u64 *data)
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{
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	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;

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	netif_info(pf, hw, netdev, "link test\n");
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	if (i40e_get_link_status(&pf->hw))
		*data = 0;
	else
		*data = 1;

	return *data;
}

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static int i40e_reg_test(struct net_device *netdev, u64 *data)
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{
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	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;
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	netif_info(pf, hw, netdev, "register test\n");
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	*data = i40e_diag_reg_test(&pf->hw);
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	return *data;
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}

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static int i40e_eeprom_test(struct net_device *netdev, u64 *data)
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{
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	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;
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	netif_info(pf, hw, netdev, "eeprom test\n");
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	*data = i40e_diag_eeprom_test(&pf->hw);
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	/* forcebly clear the NVM Update state machine */
	pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;

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	return *data;
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}

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static int i40e_intr_test(struct net_device *netdev, u64 *data)
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{
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	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;
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	u16 swc_old = pf->sw_int_count;

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	netif_info(pf, hw, netdev, "interrupt test\n");
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	wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
	     (I40E_PFINT_DYN_CTL0_INTENA_MASK |
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	      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));
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	usleep_range(1000, 2000);
	*data = (swc_old == pf->sw_int_count);
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	return *data;
}

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static int i40e_loopback_test(struct net_device *netdev, u64 *data)
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{
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	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");
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	*data = 0;
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	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);
	struct i40e_pf *pf = np->vsi->back;

	if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
		/* Offline tests */
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		netif_info(pf, drv, netdev, "offline testing starting\n");
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1537 1538
		set_bit(__I40E_TESTING, &pf->state);

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		/* Link test performed before hardware reset
		 * so autoneg doesn't interfere with test result
		 */
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		if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
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			eth_test->flags |= ETH_TEST_FL_FAILED;

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		if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
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			eth_test->flags |= ETH_TEST_FL_FAILED;

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		if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
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			eth_test->flags |= ETH_TEST_FL_FAILED;

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		if (i40e_loopback_test(netdev, &data[I40E_ETH_TEST_LOOPBACK]))
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			eth_test->flags |= ETH_TEST_FL_FAILED;

1554 1555 1556 1557 1558 1559
		/* 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));
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	} else {
		/* Online tests */
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		netif_info(pf, drv, netdev, "online testing starting\n");

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		if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
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			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;
	}
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	netif_info(pf, drv, netdev, "testing finished\n");
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}

static void i40e_get_wol(struct net_device *netdev,
			 struct ethtool_wolinfo *wol)
{
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	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);
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	if ((1 << hw->port) & wol_nvm_bits || hw->partition_id != 1) {
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		wol->supported = 0;
		wol->wolopts = 0;
	} else {
		wol->supported = WAKE_MAGIC;
		wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
	}
}

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/**
 * i40e_set_wol - set the WakeOnLAN configuration
 * @netdev: the netdev in question
 * @wol: the ethtool WoL setting data
 **/
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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;
1605
	struct i40e_vsi *vsi = np->vsi;
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	struct i40e_hw *hw = &pf->hw;
	u16 wol_nvm_bits;

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	/* 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;

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	/* 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);
	}

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	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:
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		i40e_led_set(hw, 0xF, false);
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		break;
	case ETHTOOL_ID_OFF:
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		i40e_led_set(hw, 0x0, false);
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		break;
	case ETHTOOL_ID_INACTIVE:
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		i40e_led_set(hw, pf->led_status, false);
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		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))
1677
		ec->use_adaptive_rx_coalesce = 1;
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	if (ITR_IS_DYNAMIC(vsi->tx_itr_setting))
1680 1681 1682 1683
		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;
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	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;

1702
	vector = vsi->base_vector;
1703
	if ((ec->rx_coalesce_usecs >= (I40E_MIN_ITR << 1)) &&
1704
	    (ec->rx_coalesce_usecs <= (I40E_MAX_ITR << 1))) {
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		vsi->rx_itr_setting = ec->rx_coalesce_usecs;
1706 1707 1708
	} else if (ec->rx_coalesce_usecs == 0) {
		vsi->rx_itr_setting = ec->rx_coalesce_usecs;
		if (ec->use_adaptive_rx_coalesce)
1709
			netif_info(pf, drv, netdev, "rx-usecs=0, need to disable adaptive-rx for a complete disable\n");
1710
	} else {
1711
		netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
1712
		return -EINVAL;
1713
	}
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1715
	if ((ec->tx_coalesce_usecs >= (I40E_MIN_ITR << 1)) &&
1716
	    (ec->tx_coalesce_usecs <= (I40E_MAX_ITR << 1))) {
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		vsi->tx_itr_setting = ec->tx_coalesce_usecs;
1718 1719 1720
	} else if (ec->tx_coalesce_usecs == 0) {
		vsi->tx_itr_setting = ec->tx_coalesce_usecs;
		if (ec->use_adaptive_tx_coalesce)
1721
			netif_info(pf, drv, netdev, "tx-usecs=0, need to disable adaptive-tx for a complete disable\n");
1722 1723
	} else {
		netif_info(pf, drv, netdev,
1724
			   "Invalid value, tx-usecs range is 0-8160\n");
1725
		return -EINVAL;
1726
	}
1727 1728 1729 1730 1731 1732 1733 1734 1735 1736

	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;
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1738 1739
	for (i = 0; i < vsi->num_q_vectors; i++, vector++) {
		q_vector = vsi->q_vectors[i];
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		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;

1761 1762 1763 1764 1765
	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;
	}
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	/* 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;
}

1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816
/**
 * 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 */
1817
	cmd->data = i40e_get_fd_cnt_all(pf);
1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860

	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;
1861 1862 1863 1864 1865 1866
	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;
	}

1867 1868 1869 1870 1871 1872 1873
	/* 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];
1874 1875 1876 1877 1878

	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;
1879 1880 1881 1882

	return 0;
}

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/**
 * 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:
1907
		cmd->rule_cnt = pf->fdir_pf_active_filters;
1908 1909
		/* report total rule count */
		cmd->data = i40e_get_fd_cnt_all(pf);
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		ret = 0;
		break;
	case ETHTOOL_GRXCLSRULE:
1913
		ret = i40e_get_ethtool_fdir_entry(pf, cmd);
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		break;
	case ETHTOOL_GRXCLSRLALL:
1916 1917
		ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
		break;
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1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977
	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:
1978 1979
			hena &= ~(((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_UDP) |
				  ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4));
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			break;
		case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1982 1983
			hena |= (((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_UDP) |
				  ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4));
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			break;
		default:
			return -EINVAL;
		}
		break;
	case UDP_V6_FLOW:
		switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
		case 0:
1992 1993
			hena &= ~(((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_UDP) |
				  ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6));
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			break;
		case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1996 1997
			hena |= (((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_UDP) |
				 ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6));
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1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036
			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);

2037 2038 2039
	/* Save setting for future output/update */
	pf->vsi[pf->lan_vsi]->rxnfc = *nfc;

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2040 2041 2042
	return 0;
}

2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060
/**
 * 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;
}

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/**
2062 2063 2064 2065 2066
 * 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
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Jesse Brandeburg 已提交
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 *
2068 2069 2070 2071
 * This function updates (or deletes) a Flow Director entry from
 * the hlist of the corresponding PF
 *
 * Returns 0 on success
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 **/
2073 2074 2075 2076
static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
					  struct i40e_fdir_filter *input,
					  u16 sw_idx,
					  struct ethtool_rxnfc *cmd)
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{
2078
	struct i40e_fdir_filter *rule, *parent;
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	struct i40e_pf *pf = vsi->back;
2080 2081
	struct hlist_node *node2;
	int err = -EINVAL;
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2083 2084
	parent = NULL;
	rule = NULL;
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2085

2086 2087 2088 2089 2090 2091
	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;
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2092 2093
	}

2094 2095
	/* if there is an old rule occupying our place remove it */
	if (rule && (rule->fd_id == sw_idx)) {
2096 2097 2098 2099
		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);
2100 2101 2102
		hlist_del(&rule->fdir_node);
		kfree(rule);
		pf->fdir_pf_active_filters--;
2103 2104
	}

2105 2106 2107 2108 2109
	/* 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;
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2111 2112
	/* initialize node and set software index */
	INIT_HLIST_NODE(&input->fdir_node);
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2114 2115
	/* add filter to the list */
	if (parent)
2116
		hlist_add_behind(&input->fdir_node, &parent->fdir_node);
2117 2118 2119
	else
		hlist_add_head(&input->fdir_node,
			       &pf->fdir_filter_list);
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Jesse Brandeburg 已提交
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2121 2122
	/* update counts */
	pf->fdir_pf_active_filters++;
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2123

2124
	return 0;
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2125 2126 2127
}

/**
2128 2129 2130
 * 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
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 *
2132 2133
 * The function removes a Flow Director filter entry from the
 * hlist of the corresponding PF
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 *
2135 2136 2137 2138
 * Returns 0 on success
 */
static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
			       struct ethtool_rxnfc *cmd)
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{
2140 2141
	struct ethtool_rx_flow_spec *fsp =
		(struct ethtool_rx_flow_spec *)&cmd->fs;
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2142
	struct i40e_pf *pf = vsi->back;
2143
	int ret = 0;
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2145 2146 2147 2148
	if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
	    test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
		return -EBUSY;

2149 2150 2151
	if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
		return -EBUSY;

2152
	ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
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Jesse Brandeburg 已提交
2153

2154
	i40e_fdir_check_and_reenable(pf);
2155
	return ret;
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2156 2157 2158
}

/**
2159
 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
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2160 2161 2162
 * @vsi: pointer to the targeted VSI
 * @cmd: command to get or set RX flow classification rules
 *
2163 2164
 * Add Flow Director filters for a specific flow spec based on their
 * protocol.  Returns 0 if the filters were successfully added.
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 **/
2166 2167
static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
				 struct ethtool_rxnfc *cmd)
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{
2169 2170
	struct ethtool_rx_flow_spec *fsp;
	struct i40e_fdir_filter *input;
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	struct i40e_pf *pf;
2172
	int ret = -EINVAL;
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2173 2174 2175 2176 2177 2178

	if (!vsi)
		return -EINVAL;

	pf = vsi->back;

2179 2180 2181
	if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
		return -EOPNOTSUPP;

2182
	if (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED)
2183 2184
		return -ENOSPC;

2185 2186 2187 2188
	if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
	    test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
		return -EBUSY;

2189 2190 2191
	if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
		return -EBUSY;

2192 2193
	fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;

2194 2195
	if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
			      pf->hw.func_caps.fd_filters_guaranteed)) {
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Jesse Brandeburg 已提交
2196
		return -EINVAL;
2197
	}
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2198

2199 2200
	if ((fsp->ring_cookie != RX_CLS_FLOW_DISC) &&
	    (fsp->ring_cookie >= vsi->num_queue_pairs))
2201
		return -EINVAL;
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2202

2203
	input = kzalloc(sizeof(*input), GFP_KERNEL);
J
Jesse Brandeburg 已提交
2204

2205 2206
	if (!input)
		return -ENOMEM;
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Jesse Brandeburg 已提交
2207

2208 2209
	input->fd_id = fsp->location;

2210 2211 2212 2213 2214 2215
	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;

2216 2217 2218 2219 2220
	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;
2221
	input->cnt_index  = pf->fd_sb_cnt_idx;
2222 2223
	input->flow_type = fsp->flow_type;
	input->ip4_proto = fsp->h_u.usr_ip4_spec.proto;
2224 2225 2226 2227 2228 2229 2230 2231

	/* 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;
2232

2233 2234
	ret = i40e_add_del_fdir(vsi, input, true);
	if (ret)
2235 2236
		kfree(input);
	else
2237
		i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
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Jesse Brandeburg 已提交
2238 2239 2240

	return ret;
}
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2241

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2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260
/**
 * 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:
2261
		ret = i40e_add_fdir_ethtool(vsi, cmd);
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Jesse Brandeburg 已提交
2262 2263
		break;
	case ETHTOOL_SRXCLSRLDEL:
2264
		ret = i40e_del_fdir_entry(vsi, cmd);
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2265 2266 2267 2268 2269 2270 2271 2272
		break;
	default:
		break;
	}

	return ret;
}

2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303
/**
 * 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 */
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	ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0;
2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336
	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 */
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Jesse Brandeburg 已提交
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	if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
2338 2339 2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354
		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 */

	/* cap RSS limit */
	if (count > pf->rss_size_max)
		count = pf->rss_size_max;

	/* use rss_reconfig to rebuild with new queue count and update traffic
	 * class queue mapping
	 */
	new_count = i40e_reconfig_rss_queues(pf, count);
2355
	if (new_count > 0)
2356 2357 2358 2359 2360
		return 0;
	else
		return -EINVAL;
}

2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383
/**
 * 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.
 **/
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;
}

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Jesse Brandeburg 已提交
2384 2385
static const struct ethtool_ops i40e_ethtool_ops = {
	.get_settings		= i40e_get_settings,
2386
	.set_settings		= i40e_set_settings,
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2387 2388 2389 2390 2391 2392
	.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,
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Shannon Nelson 已提交
2393
	.set_wol		= i40e_set_wol,
2394
	.set_eeprom		= i40e_set_eeprom,
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	.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,
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	.set_pauseparam		= i40e_set_pauseparam,
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	.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,
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	.get_channels		= i40e_get_channels,
	.set_channels		= i40e_set_channels,
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	.get_ts_info		= i40e_get_ts_info,
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	.get_priv_flags		= i40e_get_priv_flags,
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};

void i40e_set_ethtool_ops(struct net_device *netdev)
{
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	netdev->ethtool_ops = &i40e_ethtool_ops;
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}