i40e_ethtool.c 64.3 KB
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/*******************************************************************************
 *
 * Intel Ethernet Controller XL710 Family Linux Driver
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 * Copyright(c) 2013 - 2014 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) \
}
#define I40E_NETDEV_STAT(_net_stat) \
		I40E_STAT(struct net_device_stats, #_net_stat, _net_stat)
#define I40E_PF_STAT(_name, _stat) \
		I40E_STAT(struct i40e_pf, _name, _stat)
#define I40E_VSI_STAT(_name, _stat) \
		I40E_STAT(struct i40e_vsi, _name, _stat)
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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", stats.eth.tx_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)

/**
 * 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;
	u32 link_speed = hw_link_info->link_speed;

	/* hardware is either in 40G mode or 10G mode
	 * NOTE: this section initializes supported and advertising
	 */
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	if (!link_up) {
		/* 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;
		default:
			/* all the rest are 10G/1G */
			ecmd->supported = SUPPORTED_10000baseT_Full |
					  SUPPORTED_1000baseT_Full;
			ecmd->advertising = ADVERTISED_10000baseT_Full |
					    ADVERTISED_1000baseT_Full;
			break;
		}

		/* skip phy_type use as it is zero when link is down */
		goto no_valid_phy_type;
	}

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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;
	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:
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	case I40E_PHY_TYPE_XLPPI:
	case I40E_PHY_TYPE_XLAUI:
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		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:
		ecmd->supported = SUPPORTED_10000baseT_Full;
		break;
	case I40E_PHY_TYPE_10GBASE_CR1_CU:
	case I40E_PHY_TYPE_10GBASE_CR1:
	case I40E_PHY_TYPE_10GBASE_T:
		ecmd->supported = SUPPORTED_Autoneg |
				  SUPPORTED_10000baseT_Full;
		ecmd->advertising = ADVERTISED_Autoneg |
				    ADVERTISED_10000baseT_Full;
		break;
	case I40E_PHY_TYPE_XAUI:
	case I40E_PHY_TYPE_XFI:
	case I40E_PHY_TYPE_SFI:
	case I40E_PHY_TYPE_10GBASE_SFPP_CU:
		ecmd->supported = SUPPORTED_10000baseT_Full;
		break;
	case I40E_PHY_TYPE_1000BASE_KX:
	case I40E_PHY_TYPE_1000BASE_T:
		ecmd->supported = SUPPORTED_Autoneg |
				  SUPPORTED_1000baseT_Full;
		ecmd->advertising = ADVERTISED_Autoneg |
				    ADVERTISED_1000baseT_Full;
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		break;
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	case I40E_PHY_TYPE_100BASE_TX:
		ecmd->supported = SUPPORTED_Autoneg |
				  SUPPORTED_100baseT_Full;
		ecmd->advertising = ADVERTISED_Autoneg |
				    ADVERTISED_100baseT_Full;
		break;
	case I40E_PHY_TYPE_SGMII:
		ecmd->supported = SUPPORTED_Autoneg |
				  SUPPORTED_1000baseT_Full |
				  SUPPORTED_100baseT_Full;
		ecmd->advertising = ADVERTISED_Autoneg |
				    ADVERTISED_1000baseT_Full |
				    ADVERTISED_100baseT_Full;
		break;
	default:
		/* if we got here and link is up something bad is afoot */
		WARN_ON(link_up);
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	}

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no_valid_phy_type:
	/* this is if autoneg is enabled or disabled */
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	ecmd->autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
			  AUTONEG_ENABLE : AUTONEG_DISABLE);
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	switch (hw->phy.media_type) {
	case I40E_MEDIA_TYPE_BACKPLANE:
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		ecmd->supported |= SUPPORTED_Autoneg |
				   SUPPORTED_Backplane;
		ecmd->advertising |= ADVERTISED_Autoneg |
				     ADVERTISED_Backplane;
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		ecmd->port = PORT_NONE;
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		break;
	case I40E_MEDIA_TYPE_BASET:
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		ecmd->supported |= SUPPORTED_TP;
		ecmd->advertising |= ADVERTISED_TP;
		ecmd->port = PORT_TP;
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		break;
	case I40E_MEDIA_TYPE_DA:
	case I40E_MEDIA_TYPE_CX4:
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		ecmd->supported |= SUPPORTED_FIBRE;
		ecmd->advertising |= ADVERTISED_FIBRE;
		ecmd->port = PORT_DA;
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		break;
	case I40E_MEDIA_TYPE_FIBER:
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		ecmd->supported |= SUPPORTED_FIBRE;
		ecmd->port = PORT_FIBRE;
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		break;
	case I40E_MEDIA_TYPE_UNKNOWN:
	default:
		ecmd->port = PORT_OTHER;
		break;
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	}

	ecmd->transceiver = XCVR_EXTERNAL;

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	ecmd->supported |= SUPPORTED_Pause;

	switch (hw->fc.current_mode) {
	case I40E_FC_FULL:
		ecmd->advertising |= ADVERTISED_Pause;
		break;
	case I40E_FC_TX_PAUSE:
		ecmd->advertising |= ADVERTISED_Asym_Pause;
		break;
	case I40E_FC_RX_PAUSE:
		ecmd->advertising |= (ADVERTISED_Pause |
				      ADVERTISED_Asym_Pause);
		break;
	default:
		ecmd->advertising &= ~(ADVERTISED_Pause |
				       ADVERTISED_Asym_Pause);
		break;
	}

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	if (link_up) {
		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;
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		case I40E_LINK_SPEED_1GB:
			ethtool_cmd_speed_set(ecmd, SPEED_1000);
			break;
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		default:
			break;
		}
		ecmd->duplex = DUPLEX_FULL;
	} else {
		ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
		ecmd->duplex = DUPLEX_UNKNOWN;
	}

	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;

	if (vsi != pf->vsi[pf->lan_vsi])
		return -EOPNOTSUPP;

	if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
	    hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
	    hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE)
		return -EOPNOTSUPP;

	/* get our own copy of the bits to check against */
	memset(&safe_ecmd, 0, sizeof(struct ethtool_cmd));
	i40e_get_settings(netdev, &safe_ecmd);

	/* save autoneg and speed out of ecmd */
	autoneg = ecmd->autoneg;
	advertise = ecmd->advertising;

	/* set autoneg and speed back to what they currently are */
	ecmd->autoneg = safe_ecmd.autoneg;
	ecmd->advertising = safe_ecmd.advertising;

	ecmd->cmd = safe_ecmd.cmd;
	/* If ecmd and safe_ecmd are not the same now, then they are
	 * trying to set something that we do not support
	 */
	if (memcmp(ecmd, &safe_ecmd, sizeof(struct ethtool_cmd)))
		return -EOPNOTSUPP;

	while (test_bit(__I40E_CONFIG_BUSY, &vsi->state))
		usleep_range(1000, 2000);

	/* Get the current phy config */
	status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
					      NULL);
	if (status)
		return -EAGAIN;

	/* Copy link_speed and abilities to config in case they are not
	 * set below
	 */
	memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
	config.link_speed = abilities.link_speed;
	config.abilities = abilities.abilities;

	/* Check autoneg */
	if (autoneg == AUTONEG_ENABLE) {
		/* If autoneg is not supported, return error */
		if (!(safe_ecmd.supported & SUPPORTED_Autoneg)) {
			netdev_info(netdev, "Autoneg not supported on this phy\n");
			return -EINVAL;
		}
		/* If autoneg was not already enabled */
		if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
			config.abilities = abilities.abilities |
					   I40E_AQ_PHY_ENABLE_AN;
			change = true;
		}
	} else {
		/* If autoneg is supported 10GBASE_T is the only phy that
		 * can disable it, so otherwise return error
		 */
		if (safe_ecmd.supported & SUPPORTED_Autoneg &&
		    hw->phy.link_info.phy_type != I40E_PHY_TYPE_10GBASE_T) {
			netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
			return -EINVAL;
		}
		/* If autoneg is currently enabled */
		if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
			config.abilities = abilities.abilities |
					   ~I40E_AQ_PHY_ENABLE_AN;
			change = true;
		}
	}

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

	if (advertise & ADVERTISED_100baseT_Full)
		if (!(abilities.link_speed & I40E_LINK_SPEED_100MB)) {
			config.link_speed |= I40E_LINK_SPEED_100MB;
			change = true;
		}
	if (advertise & ADVERTISED_1000baseT_Full ||
	    advertise & ADVERTISED_1000baseKX_Full)
		if (!(abilities.link_speed & I40E_LINK_SPEED_1GB)) {
			config.link_speed |= I40E_LINK_SPEED_1GB;
			change = true;
		}
	if (advertise & ADVERTISED_10000baseT_Full ||
	    advertise & ADVERTISED_10000baseKX4_Full ||
	    advertise & ADVERTISED_10000baseKR_Full)
		if (!(abilities.link_speed & I40E_LINK_SPEED_10GB)) {
			config.link_speed |= I40E_LINK_SPEED_10GB;
			change = true;
		}
	if (advertise & ADVERTISED_40000baseKR4_Full ||
	    advertise & ADVERTISED_40000baseCR4_Full ||
	    advertise & ADVERTISED_40000baseSR4_Full ||
	    advertise & ADVERTISED_40000baseLR4_Full)
		if (!(abilities.link_speed & I40E_LINK_SPEED_40GB)) {
			config.link_speed |= I40E_LINK_SPEED_40GB;
			change = true;
		}

	if (change) {
		/* 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;

		/* If link is up set link and an so changes take effect */
		if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
			config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;

		/* make the aq call */
		status = i40e_aq_set_phy_config(hw, &config, NULL);
		if (status) {
			netdev_info(netdev, "Set phy config failed with error %d.\n",
				    status);
			return -EAGAIN;
		}

		status = i40e_update_link_info(hw, true);
		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;

	pause->autoneg =
		((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
		  AUTONEG_ENABLE : AUTONEG_DISABLE);

629
	if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
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		pause->rx_pause = 1;
631
	} else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
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		pause->tx_pause = 1;
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	} else if (hw->fc.current_mode == I40E_FC_FULL) {
		pause->rx_pause = 1;
		pause->tx_pause = 1;
	}
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}

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/**
 * 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;
	bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
	i40e_status status;
	u8 aq_failures;
655
	int err = 0;
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	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");
	}

	if (hw->fc.current_mode == I40E_FC_PFC) {
		netdev_info(netdev, "Priority flow control enabled. Cannot set link flow control.\n");
		return -EOPNOTSUPP;
	}

	if (pause->rx_pause && pause->tx_pause)
		hw->fc.requested_mode = I40E_FC_FULL;
	else if (pause->rx_pause && !pause->tx_pause)
		hw->fc.requested_mode = I40E_FC_RX_PAUSE;
	else if (!pause->rx_pause && pause->tx_pause)
		hw->fc.requested_mode = I40E_FC_TX_PAUSE;
	else if (!pause->rx_pause && !pause->tx_pause)
		hw->fc.requested_mode = I40E_FC_NONE;
	else
		 return -EINVAL;

	/* Set the fc mode and only restart an if link is up*/
	status = i40e_set_fc(hw, &aq_failures, link_up);

	if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
		netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with error %d and status %d\n",
			    status, hw->aq.asq_last_status);
		err = -EAGAIN;
	}
	if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
		netdev_info(netdev, "Set fc failed on the set_phy_config call with error %d and status %d\n",
			    status, hw->aq.asq_last_status);
		err = -EAGAIN;
	}
	if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
		netdev_info(netdev, "Set fc failed on the update_link_info call with error %d and status %d\n",
			    status, hw->aq.asq_last_status);
		err = -EAGAIN;
	}

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	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);
	}
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	return err;
}

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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;
783 784 785 786 787
	struct i40e_pf *pf = np->vsi->back;
	int ret_val = 0, len;
	u8 *eeprom_buff;
	u16 i, sectors;
	bool last;
788 789
	u32 magic;

790
#define I40E_NVM_SECTOR_SIZE  4096
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	if (eeprom->len == 0)
		return -EINVAL;

794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814
	/* check for NVMUpdate access method */
	magic = hw->vendor_id | (hw->device_id << 16);
	if (eeprom->magic && eeprom->magic != magic) {
		int errno;

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

		ret_val = i40e_nvmupd_command(hw,
					      (struct i40e_nvm_access *)eeprom,
					      bytes, &errno);
		if (ret_val)
			dev_info(&pf->pdev->dev,
				 "NVMUpdate read failed err=%d status=0x%x\n",
				 ret_val, hw->aq.asq_last_status);

		return errno;
	}

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

817
	eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
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	if (!eeprom_buff)
		return -ENOMEM;

821 822 823 824 825 826
	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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	}

829 830 831 832 833 834 835 836 837 838 839 840
	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;
		}
		ret_val = i40e_aq_read_nvm(hw, 0x0,
				eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
				len,
841
				(u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
842 843 844 845 846 847 848 849
				last, NULL);
		if (ret_val) {
			dev_info(&pf->pdev->dev,
				 "read NVM failed err=%d status=0x%x\n",
				 ret_val, hw->aq.asq_last_status);
			goto release_nvm;
		}
	}
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release_nvm:
	i40e_release_nvm(hw);
853
	memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
854
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;
863 864 865 866 867 868 869 870
	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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}

873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905
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;
	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;

	ret_val = i40e_nvmupd_command(hw, (struct i40e_nvm_access *)eeprom,
				      bytes, &errno);
	if (ret_val)
		dev_info(&pf->pdev->dev,
			 "NVMUpdate write failed err=%d status=0x%x\n",
			 ret_val, hw->aq.asq_last_status);

	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));
}

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;
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	ring->rx_pending = vsi->rx_rings[0]->count;
	ring->tx_pending = vsi->tx_rings[0]->count;
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	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;

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	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 */
967 968
	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++) {
977 978
			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 */
989
	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",
992
			    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 */
1002
			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 */
1019
	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",
1022
			    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 */
1032
			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++) {
1055 1056
			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++) {
1064 1065
			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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		}
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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);
1116
	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);
1123
	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;
	}
1132 1133 1134 1135 1136
	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;
	}
1137 1138 1139 1140 1141 1142 1143
#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
1144
	rcu_read_lock();
1145
	for (j = 0; j < vsi->num_queue_pairs; j++) {
1146
		tx_ring = ACCESS_ONCE(vsi->tx_rings[j]);
1147 1148 1149 1150 1151 1152

		if (!tx_ring)
			continue;

		/* process Tx ring statistics */
		do {
1153
			start = u64_stats_fetch_begin_irq(&tx_ring->syncp);
1154 1155
			data[i] = tx_ring->stats.packets;
			data[i + 1] = tx_ring->stats.bytes;
1156
		} while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start));
1157
		i += 2;
1158 1159 1160 1161

		/* Rx ring is the 2nd half of the queue pair */
		rx_ring = &tx_ring[1];
		do {
1162
			start = u64_stats_fetch_begin_irq(&rx_ring->syncp);
1163 1164
			data[i] = rx_ring->stats.packets;
			data[i + 1] = rx_ring->stats.bytes;
1165
		} while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start));
1166
		i += 2;
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	}
1168
	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;
		}
1220 1221 1222 1223 1224
		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;
		}
1225 1226 1227 1228 1229 1230 1231
#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;
	}
}

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

	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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Jesse Brandeburg 已提交
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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)
J
Jesse Brandeburg 已提交
1333
{
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	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;
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S
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	netif_info(pf, hw, netdev, "register test\n");
S
Shannon Nelson 已提交
1338
	*data = i40e_diag_reg_test(&pf->hw);
J
Jesse Brandeburg 已提交
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S
Shannon Nelson 已提交
1340
	return *data;
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}

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1343
static int i40e_eeprom_test(struct net_device *netdev, u64 *data)
J
Jesse Brandeburg 已提交
1344
{
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	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;
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Jesse Brandeburg 已提交
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S
Shannon Nelson 已提交
1348
	netif_info(pf, hw, netdev, "eeprom test\n");
S
Shannon Nelson 已提交
1349
	*data = i40e_diag_eeprom_test(&pf->hw);
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Jesse Brandeburg 已提交
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S
Shannon Nelson 已提交
1351
	return *data;
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}

S
Shannon Nelson 已提交
1354
static int i40e_intr_test(struct net_device *netdev, u64 *data)
J
Jesse Brandeburg 已提交
1355
{
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1356 1357
	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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Shannon Nelson 已提交
1360
	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 |
	      I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK));
	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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1391 1392
		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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Shannon Nelson 已提交
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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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Shannon Nelson 已提交
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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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Shannon Nelson 已提交
1405
		if (i40e_loopback_test(netdev, &data[I40E_ETH_TEST_LOOPBACK]))
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			eth_test->flags |= ETH_TEST_FL_FAILED;

1408 1409 1410 1411 1412 1413
		/* 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;
	}
1427

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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);
	if ((1 << hw->port) & wol_nvm_bits) {
		wol->supported = 0;
		wol->wolopts = 0;
	} else {
		wol->supported = WAKE_MAGIC;
		wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
	}
}

static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;
	struct i40e_hw *hw = &pf->hw;
	u16 wol_nvm_bits;

	/* NVM bit on means WoL disabled for the port */
	i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
	if (((1 << hw->port) & wol_nvm_bits))
		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))
1516
		ec->use_adaptive_rx_coalesce = 1;
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	if (ITR_IS_DYNAMIC(vsi->tx_itr_setting))
1519 1520 1521 1522
		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;

1541
	vector = vsi->base_vector;
1542
	if ((ec->rx_coalesce_usecs >= (I40E_MIN_ITR << 1)) &&
1543
	    (ec->rx_coalesce_usecs <= (I40E_MAX_ITR << 1))) {
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		vsi->rx_itr_setting = ec->rx_coalesce_usecs;
1545 1546 1547 1548 1549 1550 1551 1552 1553
	} else if (ec->rx_coalesce_usecs == 0) {
		vsi->rx_itr_setting = ec->rx_coalesce_usecs;
		i40e_irq_dynamic_disable(vsi, vector);
		if (ec->use_adaptive_rx_coalesce)
			netif_info(pf, drv, netdev,
				   "Rx-secs=0, need to disable adaptive-Rx for a complete disable\n");
	} else {
		netif_info(pf, drv, netdev,
			   "Invalid value, Rx-usecs range is 0, 8-8160\n");
1554
		return -EINVAL;
1555
	}
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1557
	if ((ec->tx_coalesce_usecs >= (I40E_MIN_ITR << 1)) &&
1558
	    (ec->tx_coalesce_usecs <= (I40E_MAX_ITR << 1))) {
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		vsi->tx_itr_setting = ec->tx_coalesce_usecs;
1560 1561 1562 1563 1564 1565 1566 1567 1568
	} else if (ec->tx_coalesce_usecs == 0) {
		vsi->tx_itr_setting = ec->tx_coalesce_usecs;
		i40e_irq_dynamic_disable(vsi, vector);
		if (ec->use_adaptive_tx_coalesce)
			netif_info(pf, drv, netdev,
				   "Tx-secs=0, need to disable adaptive-Tx for a complete disable\n");
	} else {
		netif_info(pf, drv, netdev,
			   "Invalid value, Tx-usecs range is 0, 8-8160\n");
1569
		return -EINVAL;
1570
	}
1571 1572 1573 1574 1575 1576 1577 1578 1579 1580

	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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1582 1583
	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;

	/* 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;
}

1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655
/**
 * 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 */
1656
	cmd->data = i40e_get_fd_cnt_all(pf);
1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699

	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;
1700 1701 1702 1703 1704 1705
	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;
	}

1706 1707 1708 1709 1710 1711 1712
	/* 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];
1713 1714 1715 1716 1717

	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;
1718 1719 1720 1721

	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:
1746
		cmd->rule_cnt = pf->fdir_pf_active_filters;
1747 1748
		/* report total rule count */
		cmd->data = i40e_get_fd_cnt_all(pf);
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		ret = 0;
		break;
	case ETHTOOL_GRXCLSRULE:
1752
		ret = i40e_get_ethtool_fdir_entry(pf, cmd);
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		break;
	case ETHTOOL_GRXCLSRLALL:
1755 1756
		ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
		break;
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	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:
1817 1818
			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):
1821 1822
			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:
1831 1832
			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):
1835 1836
			hena |= (((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_UDP) |
				 ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6));
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			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);

	return 0;
}

1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896
/**
 * 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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/**
1898 1899 1900 1901 1902
 * 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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 *
1904 1905 1906 1907
 * This function updates (or deletes) a Flow Director entry from
 * the hlist of the corresponding PF
 *
 * Returns 0 on success
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 **/
1909 1910 1911 1912
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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{
1914
	struct i40e_fdir_filter *rule, *parent;
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	struct i40e_pf *pf = vsi->back;
1916 1917
	struct hlist_node *node2;
	int err = -EINVAL;
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1919 1920
	parent = NULL;
	rule = NULL;
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1922 1923 1924 1925 1926 1927
	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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	}

1930 1931
	/* if there is an old rule occupying our place remove it */
	if (rule && (rule->fd_id == sw_idx)) {
1932 1933 1934 1935
		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);
1936 1937 1938
		hlist_del(&rule->fdir_node);
		kfree(rule);
		pf->fdir_pf_active_filters--;
1939 1940
	}

1941 1942 1943 1944 1945
	/* 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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1947 1948
	/* initialize node and set software index */
	INIT_HLIST_NODE(&input->fdir_node);
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1950 1951
	/* add filter to the list */
	if (parent)
1952
		hlist_add_behind(&input->fdir_node, &parent->fdir_node);
1953 1954 1955
	else
		hlist_add_head(&input->fdir_node,
			       &pf->fdir_filter_list);
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1957 1958
	/* update counts */
	pf->fdir_pf_active_filters++;
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1960
	return 0;
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}

/**
1964 1965 1966
 * 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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 *
1968 1969
 * The function removes a Flow Director filter entry from the
 * hlist of the corresponding PF
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 *
1971 1972 1973 1974
 * Returns 0 on success
 */
static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
			       struct ethtool_rxnfc *cmd)
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{
1976 1977
	struct ethtool_rx_flow_spec *fsp =
		(struct ethtool_rx_flow_spec *)&cmd->fs;
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	struct i40e_pf *pf = vsi->back;
1979
	int ret = 0;
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1981 1982 1983 1984
	if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
	    test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
		return -EBUSY;

1985 1986 1987
	if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
		return -EBUSY;

1988
	ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
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1990
	i40e_fdir_check_and_reenable(pf);
1991
	return ret;
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}

/**
1995
 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
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 * @vsi: pointer to the targeted VSI
 * @cmd: command to get or set RX flow classification rules
 *
1999 2000
 * 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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 **/
2002 2003
static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
				 struct ethtool_rxnfc *cmd)
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{
2005 2006
	struct ethtool_rx_flow_spec *fsp;
	struct i40e_fdir_filter *input;
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	struct i40e_pf *pf;
2008
	int ret = -EINVAL;
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	if (!vsi)
		return -EINVAL;

	pf = vsi->back;

2015 2016 2017
	if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
		return -EOPNOTSUPP;

2018
	if (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED)
2019 2020
		return -ENOSPC;

2021 2022 2023 2024
	if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
	    test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
		return -EBUSY;

2025 2026 2027
	if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
		return -EBUSY;

2028 2029
	fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;

2030 2031
	if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
			      pf->hw.func_caps.fd_filters_guaranteed)) {
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		return -EINVAL;
2033
	}
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2035 2036
	if ((fsp->ring_cookie != RX_CLS_FLOW_DISC) &&
	    (fsp->ring_cookie >= vsi->num_queue_pairs))
2037
		return -EINVAL;
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2039
	input = kzalloc(sizeof(*input), GFP_KERNEL);
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2041 2042
	if (!input)
		return -ENOMEM;
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2044 2045
	input->fd_id = fsp->location;

2046 2047 2048 2049 2050 2051
	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;

2052 2053 2054 2055 2056
	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;
2057
	input->cnt_index  = pf->fd_sb_cnt_idx;
2058 2059
	input->flow_type = fsp->flow_type;
	input->ip4_proto = fsp->h_u.usr_ip4_spec.proto;
2060 2061 2062 2063 2064 2065 2066 2067

	/* 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;
2068

2069 2070
	ret = i40e_add_del_fdir(vsi, input, true);
	if (ret)
2071 2072
		kfree(input);
	else
2073
		i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
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	return ret;
}
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/**
 * 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:
2097
		ret = i40e_add_fdir_ethtool(vsi, cmd);
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		break;
	case ETHTOOL_SRXCLSRLDEL:
2100
		ret = i40e_del_fdir_entry(vsi, cmd);
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		break;
	default:
		break;
	}

	return ret;
}

2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139
/**
 * 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;
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	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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	if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190
		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);
2191
	if (new_count > 0)
2192 2193 2194 2195 2196
		return 0;
	else
		return -EINVAL;
}

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static const struct ethtool_ops i40e_ethtool_ops = {
	.get_settings		= i40e_get_settings,
2199
	.set_settings		= i40e_set_settings,
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	.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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	.set_wol		= i40e_set_wol,
2207
	.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,
2213
	.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,
2225 2226
	.get_channels		= i40e_get_channels,
	.set_channels		= i40e_set_channels,
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	.get_ts_info		= i40e_get_ts_info,
};

void i40e_set_ethtool_ops(struct net_device *netdev)
{
2232
	netdev->ethtool_ops = &i40e_ethtool_ops;
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}