--- /dev/null
+/* Intel PRO/1000 Linux driver
+ * Copyright(c) 1999 - 2014 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Contact Information:
+ * Linux NICS <linux.nics@intel.com>
+ * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ */
+
+/* ethtool support for e1000 */
+
+#include <linux/netdevice.h>
+#include <linux/interrupt.h>
+#include <linux/ethtool.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/vmalloc.h>
+#include <linux/pm_runtime.h>
+
+#include "e1000.h"
+
+enum { NETDEV_STATS, E1000_STATS };
+
+struct e1000_stats {
+ char stat_string[ETH_GSTRING_LEN];
+ int type;
+ int sizeof_stat;
+ int stat_offset;
+};
+
+#define E1000_STAT(str, m) { \
+ .stat_string = str, \
+ .type = E1000_STATS, \
+ .sizeof_stat = sizeof(((struct e1000_adapter *)0)->m), \
+ .stat_offset = offsetof(struct e1000_adapter, m) }
+#define E1000_NETDEV_STAT(str, m) { \
+ .stat_string = str, \
+ .type = NETDEV_STATS, \
+ .sizeof_stat = sizeof(((struct rtnl_link_stats64 *)0)->m), \
+ .stat_offset = offsetof(struct rtnl_link_stats64, m) }
+
+static const struct e1000_stats e1000_gstrings_stats[] = {
+ E1000_STAT("rx_packets", stats.gprc),
+ E1000_STAT("tx_packets", stats.gptc),
+ E1000_STAT("rx_bytes", stats.gorc),
+ E1000_STAT("tx_bytes", stats.gotc),
+ E1000_STAT("rx_broadcast", stats.bprc),
+ E1000_STAT("tx_broadcast", stats.bptc),
+ E1000_STAT("rx_multicast", stats.mprc),
+ E1000_STAT("tx_multicast", stats.mptc),
+ E1000_NETDEV_STAT("rx_errors", rx_errors),
+ E1000_NETDEV_STAT("tx_errors", tx_errors),
+ E1000_NETDEV_STAT("tx_dropped", tx_dropped),
+ E1000_STAT("multicast", stats.mprc),
+ E1000_STAT("collisions", stats.colc),
+ E1000_NETDEV_STAT("rx_length_errors", rx_length_errors),
+ E1000_NETDEV_STAT("rx_over_errors", rx_over_errors),
+ E1000_STAT("rx_crc_errors", stats.crcerrs),
+ E1000_NETDEV_STAT("rx_frame_errors", rx_frame_errors),
+ E1000_STAT("rx_no_buffer_count", stats.rnbc),
+ E1000_STAT("rx_missed_errors", stats.mpc),
+ E1000_STAT("tx_aborted_errors", stats.ecol),
+ E1000_STAT("tx_carrier_errors", stats.tncrs),
+ E1000_NETDEV_STAT("tx_fifo_errors", tx_fifo_errors),
+ E1000_NETDEV_STAT("tx_heartbeat_errors", tx_heartbeat_errors),
+ E1000_STAT("tx_window_errors", stats.latecol),
+ E1000_STAT("tx_abort_late_coll", stats.latecol),
+ E1000_STAT("tx_deferred_ok", stats.dc),
+ E1000_STAT("tx_single_coll_ok", stats.scc),
+ E1000_STAT("tx_multi_coll_ok", stats.mcc),
+ E1000_STAT("tx_timeout_count", tx_timeout_count),
+ E1000_STAT("tx_restart_queue", restart_queue),
+ E1000_STAT("rx_long_length_errors", stats.roc),
+ E1000_STAT("rx_short_length_errors", stats.ruc),
+ E1000_STAT("rx_align_errors", stats.algnerrc),
+ E1000_STAT("tx_tcp_seg_good", stats.tsctc),
+ E1000_STAT("tx_tcp_seg_failed", stats.tsctfc),
+ E1000_STAT("rx_flow_control_xon", stats.xonrxc),
+ E1000_STAT("rx_flow_control_xoff", stats.xoffrxc),
+ E1000_STAT("tx_flow_control_xon", stats.xontxc),
+ E1000_STAT("tx_flow_control_xoff", stats.xofftxc),
+ E1000_STAT("rx_csum_offload_good", hw_csum_good),
+ E1000_STAT("rx_csum_offload_errors", hw_csum_err),
+ E1000_STAT("rx_header_split", rx_hdr_split),
+ E1000_STAT("alloc_rx_buff_failed", alloc_rx_buff_failed),
+ E1000_STAT("tx_smbus", stats.mgptc),
+ E1000_STAT("rx_smbus", stats.mgprc),
+ E1000_STAT("dropped_smbus", stats.mgpdc),
+ E1000_STAT("rx_dma_failed", rx_dma_failed),
+ E1000_STAT("tx_dma_failed", tx_dma_failed),
+ E1000_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
+ E1000_STAT("uncorr_ecc_errors", uncorr_errors),
+ E1000_STAT("corr_ecc_errors", corr_errors),
+ E1000_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
+};
+
+#define E1000_GLOBAL_STATS_LEN ARRAY_SIZE(e1000_gstrings_stats)
+#define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN)
+static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = {
+ "Register test (offline)", "Eeprom test (offline)",
+ "Interrupt test (offline)", "Loopback test (offline)",
+ "Link test (on/offline)"
+};
+
+#define E1000_TEST_LEN ARRAY_SIZE(e1000_gstrings_test)
+
+static int e1000_get_settings(struct net_device *netdev,
+ struct ethtool_cmd *ecmd)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u32 speed;
+
+ if (hw->phy.media_type == e1000_media_type_copper) {
+ ecmd->supported = (SUPPORTED_10baseT_Half |
+ SUPPORTED_10baseT_Full |
+ SUPPORTED_100baseT_Half |
+ SUPPORTED_100baseT_Full |
+ SUPPORTED_1000baseT_Full |
+ SUPPORTED_Autoneg |
+ SUPPORTED_TP);
+ if (hw->phy.type == e1000_phy_ife)
+ ecmd->supported &= ~SUPPORTED_1000baseT_Full;
+ ecmd->advertising = ADVERTISED_TP;
+
+ if (hw->mac.autoneg == 1) {
+ ecmd->advertising |= ADVERTISED_Autoneg;
+ /* the e1000 autoneg seems to match ethtool nicely */
+ ecmd->advertising |= hw->phy.autoneg_advertised;
+ }
+
+ ecmd->port = PORT_TP;
+ ecmd->phy_address = hw->phy.addr;
+ ecmd->transceiver = XCVR_INTERNAL;
+
+ } else {
+ ecmd->supported = (SUPPORTED_1000baseT_Full |
+ SUPPORTED_FIBRE |
+ SUPPORTED_Autoneg);
+
+ ecmd->advertising = (ADVERTISED_1000baseT_Full |
+ ADVERTISED_FIBRE |
+ ADVERTISED_Autoneg);
+
+ ecmd->port = PORT_FIBRE;
+ ecmd->transceiver = XCVR_EXTERNAL;
+ }
+
+ speed = SPEED_UNKNOWN;
+ ecmd->duplex = DUPLEX_UNKNOWN;
+
+ if (netif_running(netdev)) {
+ if (netif_carrier_ok(netdev)) {
+ speed = adapter->link_speed;
+ ecmd->duplex = adapter->link_duplex - 1;
+ }
+ } else if (!pm_runtime_suspended(netdev->dev.parent)) {
+ u32 status = er32(STATUS);
+
+ if (status & E1000_STATUS_LU) {
+ if (status & E1000_STATUS_SPEED_1000)
+ speed = SPEED_1000;
+ else if (status & E1000_STATUS_SPEED_100)
+ speed = SPEED_100;
+ else
+ speed = SPEED_10;
+
+ if (status & E1000_STATUS_FD)
+ ecmd->duplex = DUPLEX_FULL;
+ else
+ ecmd->duplex = DUPLEX_HALF;
+ }
+ }
+
+ ethtool_cmd_speed_set(ecmd, speed);
+ ecmd->autoneg = ((hw->phy.media_type == e1000_media_type_fiber) ||
+ hw->mac.autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
+
+ /* MDI-X => 2; MDI =>1; Invalid =>0 */
+ if ((hw->phy.media_type == e1000_media_type_copper) &&
+ netif_carrier_ok(netdev))
+ ecmd->eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X : ETH_TP_MDI;
+ else
+ ecmd->eth_tp_mdix = ETH_TP_MDI_INVALID;
+
+ if (hw->phy.mdix == AUTO_ALL_MODES)
+ ecmd->eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
+ else
+ ecmd->eth_tp_mdix_ctrl = hw->phy.mdix;
+
+ return 0;
+}
+
+static int e1000_set_spd_dplx(struct e1000_adapter *adapter, u32 spd, u8 dplx)
+{
+ struct e1000_mac_info *mac = &adapter->hw.mac;
+
+ mac->autoneg = 0;
+
+ /* Make sure dplx is at most 1 bit and lsb of speed is not set
+ * for the switch() below to work
+ */
+ if ((spd & 1) || (dplx & ~1))
+ goto err_inval;
+
+ /* Fiber NICs only allow 1000 gbps Full duplex */
+ if ((adapter->hw.phy.media_type == e1000_media_type_fiber) &&
+ (spd != SPEED_1000) && (dplx != DUPLEX_FULL)) {
+ goto err_inval;
+ }
+
+ switch (spd + dplx) {
+ case SPEED_10 + DUPLEX_HALF:
+ mac->forced_speed_duplex = ADVERTISE_10_HALF;
+ break;
+ case SPEED_10 + DUPLEX_FULL:
+ mac->forced_speed_duplex = ADVERTISE_10_FULL;
+ break;
+ case SPEED_100 + DUPLEX_HALF:
+ mac->forced_speed_duplex = ADVERTISE_100_HALF;
+ break;
+ case SPEED_100 + DUPLEX_FULL:
+ mac->forced_speed_duplex = ADVERTISE_100_FULL;
+ break;
+ case SPEED_1000 + DUPLEX_FULL:
+ mac->autoneg = 1;
+ adapter->hw.phy.autoneg_advertised = ADVERTISE_1000_FULL;
+ break;
+ case SPEED_1000 + DUPLEX_HALF: /* not supported */
+ default:
+ goto err_inval;
+ }
+
+ /* clear MDI, MDI(-X) override is only allowed when autoneg enabled */
+ adapter->hw.phy.mdix = AUTO_ALL_MODES;
+
+ return 0;
+
+err_inval:
+ e_err("Unsupported Speed/Duplex configuration\n");
+ return -EINVAL;
+}
+
+static int e1000_set_settings(struct net_device *netdev,
+ struct ethtool_cmd *ecmd)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ int ret_val = 0;
+
+ pm_runtime_get_sync(netdev->dev.parent);
+
+ /* When SoL/IDER sessions are active, autoneg/speed/duplex
+ * cannot be changed
+ */
+ if (hw->phy.ops.check_reset_block &&
+ hw->phy.ops.check_reset_block(hw)) {
+ e_err("Cannot change link characteristics when SoL/IDER is active.\n");
+ ret_val = -EINVAL;
+ goto out;
+ }
+
+ /* MDI setting is only allowed when autoneg enabled because
+ * some hardware doesn't allow MDI setting when speed or
+ * duplex is forced.
+ */
+ if (ecmd->eth_tp_mdix_ctrl) {
+ if (hw->phy.media_type != e1000_media_type_copper) {
+ ret_val = -EOPNOTSUPP;
+ goto out;
+ }
+
+ if ((ecmd->eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO) &&
+ (ecmd->autoneg != AUTONEG_ENABLE)) {
+ e_err("forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
+ ret_val = -EINVAL;
+ goto out;
+ }
+ }
+
+ while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
+ usleep_range(1000, 2000);
+
+ if (ecmd->autoneg == AUTONEG_ENABLE) {
+ hw->mac.autoneg = 1;
+ if (hw->phy.media_type == e1000_media_type_fiber)
+ hw->phy.autoneg_advertised = ADVERTISED_1000baseT_Full |
+ ADVERTISED_FIBRE | ADVERTISED_Autoneg;
+ else
+ hw->phy.autoneg_advertised = ecmd->advertising |
+ ADVERTISED_TP | ADVERTISED_Autoneg;
+ ecmd->advertising = hw->phy.autoneg_advertised;
+ if (adapter->fc_autoneg)
+ hw->fc.requested_mode = e1000_fc_default;
+ } else {
+ u32 speed = ethtool_cmd_speed(ecmd);
+ /* calling this overrides forced MDI setting */
+ if (e1000_set_spd_dplx(adapter, speed, ecmd->duplex)) {
+ ret_val = -EINVAL;
+ goto out;
+ }
+ }
+
+ /* MDI-X => 2; MDI => 1; Auto => 3 */
+ if (ecmd->eth_tp_mdix_ctrl) {
+ /* fix up the value for auto (3 => 0) as zero is mapped
+ * internally to auto
+ */
+ if (ecmd->eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
+ hw->phy.mdix = AUTO_ALL_MODES;
+ else
+ hw->phy.mdix = ecmd->eth_tp_mdix_ctrl;
+ }
+
+ /* reset the link */
+ if (netif_running(adapter->netdev)) {
+ e1000e_down(adapter, true);
+ e1000e_up(adapter);
+ } else {
+ e1000e_reset(adapter);
+ }
+
+out:
+ pm_runtime_put_sync(netdev->dev.parent);
+ clear_bit(__E1000_RESETTING, &adapter->state);
+ return ret_val;
+}
+
+static void e1000_get_pauseparam(struct net_device *netdev,
+ struct ethtool_pauseparam *pause)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+
+ pause->autoneg =
+ (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
+
+ if (hw->fc.current_mode == e1000_fc_rx_pause) {
+ pause->rx_pause = 1;
+ } else if (hw->fc.current_mode == e1000_fc_tx_pause) {
+ pause->tx_pause = 1;
+ } else if (hw->fc.current_mode == e1000_fc_full) {
+ pause->rx_pause = 1;
+ pause->tx_pause = 1;
+ }
+}
+
+static int e1000_set_pauseparam(struct net_device *netdev,
+ struct ethtool_pauseparam *pause)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ int retval = 0;
+
+ adapter->fc_autoneg = pause->autoneg;
+
+ while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
+ usleep_range(1000, 2000);
+
+ pm_runtime_get_sync(netdev->dev.parent);
+
+ if (adapter->fc_autoneg == AUTONEG_ENABLE) {
+ hw->fc.requested_mode = e1000_fc_default;
+ if (netif_running(adapter->netdev)) {
+ e1000e_down(adapter, true);
+ e1000e_up(adapter);
+ } else {
+ e1000e_reset(adapter);
+ }
+ } else {
+ if (pause->rx_pause && pause->tx_pause)
+ hw->fc.requested_mode = e1000_fc_full;
+ else if (pause->rx_pause && !pause->tx_pause)
+ hw->fc.requested_mode = e1000_fc_rx_pause;
+ else if (!pause->rx_pause && pause->tx_pause)
+ hw->fc.requested_mode = e1000_fc_tx_pause;
+ else if (!pause->rx_pause && !pause->tx_pause)
+ hw->fc.requested_mode = e1000_fc_none;
+
+ hw->fc.current_mode = hw->fc.requested_mode;
+
+ if (hw->phy.media_type == e1000_media_type_fiber) {
+ retval = hw->mac.ops.setup_link(hw);
+ /* implicit goto out */
+ } else {
+ retval = e1000e_force_mac_fc(hw);
+ if (retval)
+ goto out;
+ e1000e_set_fc_watermarks(hw);
+ }
+ }
+
+out:
+ pm_runtime_put_sync(netdev->dev.parent);
+ clear_bit(__E1000_RESETTING, &adapter->state);
+ return retval;
+}
+
+static u32 e1000_get_msglevel(struct net_device *netdev)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ return adapter->msg_enable;
+}
+
+static void e1000_set_msglevel(struct net_device *netdev, u32 data)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ adapter->msg_enable = data;
+}
+
+static int e1000_get_regs_len(struct net_device __always_unused *netdev)
+{
+#define E1000_REGS_LEN 32 /* overestimate */
+ return E1000_REGS_LEN * sizeof(u32);
+}
+
+static void e1000_get_regs(struct net_device *netdev,
+ struct ethtool_regs *regs, void *p)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u32 *regs_buff = p;
+ u16 phy_data;
+
+ pm_runtime_get_sync(netdev->dev.parent);
+
+ memset(p, 0, E1000_REGS_LEN * sizeof(u32));
+
+ regs->version = (1 << 24) | (adapter->pdev->revision << 16) |
+ adapter->pdev->device;
+
+ regs_buff[0] = er32(CTRL);
+ regs_buff[1] = er32(STATUS);
+
+ regs_buff[2] = er32(RCTL);
+ regs_buff[3] = er32(RDLEN(0));
+ regs_buff[4] = er32(RDH(0));
+ regs_buff[5] = er32(RDT(0));
+ regs_buff[6] = er32(RDTR);
+
+ regs_buff[7] = er32(TCTL);
+ regs_buff[8] = er32(TDLEN(0));
+ regs_buff[9] = er32(TDH(0));
+ regs_buff[10] = er32(TDT(0));
+ regs_buff[11] = er32(TIDV);
+
+ regs_buff[12] = adapter->hw.phy.type; /* PHY type (IGP=1, M88=0) */
+
+ /* ethtool doesn't use anything past this point, so all this
+ * code is likely legacy junk for apps that may or may not exist
+ */
+ if (hw->phy.type == e1000_phy_m88) {
+ e1e_rphy(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
+ regs_buff[13] = (u32)phy_data; /* cable length */
+ regs_buff[14] = 0; /* Dummy (to align w/ IGP phy reg dump) */
+ regs_buff[15] = 0; /* Dummy (to align w/ IGP phy reg dump) */
+ regs_buff[16] = 0; /* Dummy (to align w/ IGP phy reg dump) */
+ e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
+ regs_buff[17] = (u32)phy_data; /* extended 10bt distance */
+ regs_buff[18] = regs_buff[13]; /* cable polarity */
+ regs_buff[19] = 0; /* Dummy (to align w/ IGP phy reg dump) */
+ regs_buff[20] = regs_buff[17]; /* polarity correction */
+ /* phy receive errors */
+ regs_buff[22] = adapter->phy_stats.receive_errors;
+ regs_buff[23] = regs_buff[13]; /* mdix mode */
+ }
+ regs_buff[21] = 0; /* was idle_errors */
+ e1e_rphy(hw, MII_STAT1000, &phy_data);
+ regs_buff[24] = (u32)phy_data; /* phy local receiver status */
+ regs_buff[25] = regs_buff[24]; /* phy remote receiver status */
+
+ pm_runtime_put_sync(netdev->dev.parent);
+}
+
+static int e1000_get_eeprom_len(struct net_device *netdev)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ return adapter->hw.nvm.word_size * 2;
+}
+
+static int e1000_get_eeprom(struct net_device *netdev,
+ struct ethtool_eeprom *eeprom, u8 *bytes)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u16 *eeprom_buff;
+ int first_word;
+ int last_word;
+ int ret_val = 0;
+ u16 i;
+
+ if (eeprom->len == 0)
+ return -EINVAL;
+
+ eeprom->magic = adapter->pdev->vendor | (adapter->pdev->device << 16);
+
+ first_word = eeprom->offset >> 1;
+ last_word = (eeprom->offset + eeprom->len - 1) >> 1;
+
+ eeprom_buff = kmalloc(sizeof(u16) * (last_word - first_word + 1),
+ GFP_KERNEL);
+ if (!eeprom_buff)
+ return -ENOMEM;
+
+ pm_runtime_get_sync(netdev->dev.parent);
+
+ if (hw->nvm.type == e1000_nvm_eeprom_spi) {
+ ret_val = e1000_read_nvm(hw, first_word,
+ last_word - first_word + 1,
+ eeprom_buff);
+ } else {
+ for (i = 0; i < last_word - first_word + 1; i++) {
+ ret_val = e1000_read_nvm(hw, first_word + i, 1,
+ &eeprom_buff[i]);
+ if (ret_val)
+ break;
+ }
+ }
+
+ pm_runtime_put_sync(netdev->dev.parent);
+
+ if (ret_val) {
+ /* a read error occurred, throw away the result */
+ memset(eeprom_buff, 0xff, sizeof(u16) *
+ (last_word - first_word + 1));
+ } else {
+ /* Device's eeprom is always little-endian, word addressable */
+ for (i = 0; i < last_word - first_word + 1; i++)
+ le16_to_cpus(&eeprom_buff[i]);
+ }
+
+ memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
+ kfree(eeprom_buff);
+
+ return ret_val;
+}
+
+static int e1000_set_eeprom(struct net_device *netdev,
+ struct ethtool_eeprom *eeprom, u8 *bytes)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u16 *eeprom_buff;
+ void *ptr;
+ int max_len;
+ int first_word;
+ int last_word;
+ int ret_val = 0;
+ u16 i;
+
+ if (eeprom->len == 0)
+ return -EOPNOTSUPP;
+
+ if (eeprom->magic !=
+ (adapter->pdev->vendor | (adapter->pdev->device << 16)))
+ return -EFAULT;
+
+ if (adapter->flags & FLAG_READ_ONLY_NVM)
+ return -EINVAL;
+
+ max_len = hw->nvm.word_size * 2;
+
+ first_word = eeprom->offset >> 1;
+ last_word = (eeprom->offset + eeprom->len - 1) >> 1;
+ eeprom_buff = kmalloc(max_len, GFP_KERNEL);
+ if (!eeprom_buff)
+ return -ENOMEM;
+
+ ptr = (void *)eeprom_buff;
+
+ pm_runtime_get_sync(netdev->dev.parent);
+
+ if (eeprom->offset & 1) {
+ /* need read/modify/write of first changed EEPROM word */
+ /* only the second byte of the word is being modified */
+ ret_val = e1000_read_nvm(hw, first_word, 1, &eeprom_buff[0]);
+ ptr++;
+ }
+ if (((eeprom->offset + eeprom->len) & 1) && (!ret_val))
+ /* need read/modify/write of last changed EEPROM word */
+ /* only the first byte of the word is being modified */
+ ret_val = e1000_read_nvm(hw, last_word, 1,
+ &eeprom_buff[last_word - first_word]);
+
+ if (ret_val)
+ goto out;
+
+ /* Device's eeprom is always little-endian, word addressable */
+ for (i = 0; i < last_word - first_word + 1; i++)
+ le16_to_cpus(&eeprom_buff[i]);
+
+ memcpy(ptr, bytes, eeprom->len);
+
+ for (i = 0; i < last_word - first_word + 1; i++)
+ cpu_to_le16s(&eeprom_buff[i]);
+
+ ret_val = e1000_write_nvm(hw, first_word,
+ last_word - first_word + 1, eeprom_buff);
+
+ if (ret_val)
+ goto out;
+
+ /* Update the checksum over the first part of the EEPROM if needed
+ * and flush shadow RAM for applicable controllers
+ */
+ if ((first_word <= NVM_CHECKSUM_REG) ||
+ (hw->mac.type == e1000_82583) ||
+ (hw->mac.type == e1000_82574) ||
+ (hw->mac.type == e1000_82573))
+ ret_val = e1000e_update_nvm_checksum(hw);
+
+out:
+ pm_runtime_put_sync(netdev->dev.parent);
+ kfree(eeprom_buff);
+ return ret_val;
+}
+
+static void e1000_get_drvinfo(struct net_device *netdev,
+ struct ethtool_drvinfo *drvinfo)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ strlcpy(drvinfo->driver, e1000e_driver_name, sizeof(drvinfo->driver));
+ strlcpy(drvinfo->version, e1000e_driver_version,
+ sizeof(drvinfo->version));
+
+ /* EEPROM image version # is reported as firmware version # for
+ * PCI-E controllers
+ */
+ snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+ "%d.%d-%d",
+ (adapter->eeprom_vers & 0xF000) >> 12,
+ (adapter->eeprom_vers & 0x0FF0) >> 4,
+ (adapter->eeprom_vers & 0x000F));
+
+ strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
+ sizeof(drvinfo->bus_info));
+ drvinfo->regdump_len = e1000_get_regs_len(netdev);
+ drvinfo->eedump_len = e1000_get_eeprom_len(netdev);
+}
+
+static void e1000_get_ringparam(struct net_device *netdev,
+ struct ethtool_ringparam *ring)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ ring->rx_max_pending = E1000_MAX_RXD;
+ ring->tx_max_pending = E1000_MAX_TXD;
+ ring->rx_pending = adapter->rx_ring_count;
+ ring->tx_pending = adapter->tx_ring_count;
+}
+
+static int e1000_set_ringparam(struct net_device *netdev,
+ struct ethtool_ringparam *ring)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_ring *temp_tx = NULL, *temp_rx = NULL;
+ int err = 0, size = sizeof(struct e1000_ring);
+ bool set_tx = false, set_rx = false;
+ u16 new_rx_count, new_tx_count;
+
+ if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
+ return -EINVAL;
+
+ new_rx_count = clamp_t(u32, ring->rx_pending, E1000_MIN_RXD,
+ E1000_MAX_RXD);
+ new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
+
+ new_tx_count = clamp_t(u32, ring->tx_pending, E1000_MIN_TXD,
+ E1000_MAX_TXD);
+ new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
+
+ if ((new_tx_count == adapter->tx_ring_count) &&
+ (new_rx_count == adapter->rx_ring_count))
+ /* nothing to do */
+ return 0;
+
+ while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
+ usleep_range(1000, 2000);
+
+ if (!netif_running(adapter->netdev)) {
+ /* Set counts now and allocate resources during open() */
+ adapter->tx_ring->count = new_tx_count;
+ adapter->rx_ring->count = new_rx_count;
+ adapter->tx_ring_count = new_tx_count;
+ adapter->rx_ring_count = new_rx_count;
+ goto clear_reset;
+ }
+
+ set_tx = (new_tx_count != adapter->tx_ring_count);
+ set_rx = (new_rx_count != adapter->rx_ring_count);
+
+ /* Allocate temporary storage for ring updates */
+ if (set_tx) {
+ temp_tx = vmalloc(size);
+ if (!temp_tx) {
+ err = -ENOMEM;
+ goto free_temp;
+ }
+ }
+ if (set_rx) {
+ temp_rx = vmalloc(size);
+ if (!temp_rx) {
+ err = -ENOMEM;
+ goto free_temp;
+ }
+ }
+
+ pm_runtime_get_sync(netdev->dev.parent);
+
+ e1000e_down(adapter, true);
+
+ /* 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. First, attempt to allocate new resources...
+ */
+ if (set_tx) {
+ memcpy(temp_tx, adapter->tx_ring, size);
+ temp_tx->count = new_tx_count;
+ err = e1000e_setup_tx_resources(temp_tx);
+ if (err)
+ goto err_setup;
+ }
+ if (set_rx) {
+ memcpy(temp_rx, adapter->rx_ring, size);
+ temp_rx->count = new_rx_count;
+ err = e1000e_setup_rx_resources(temp_rx);
+ if (err)
+ goto err_setup_rx;
+ }
+
+ /* ...then free the old resources and copy back any new ring data */
+ if (set_tx) {
+ e1000e_free_tx_resources(adapter->tx_ring);
+ memcpy(adapter->tx_ring, temp_tx, size);
+ adapter->tx_ring_count = new_tx_count;
+ }
+ if (set_rx) {
+ e1000e_free_rx_resources(adapter->rx_ring);
+ memcpy(adapter->rx_ring, temp_rx, size);
+ adapter->rx_ring_count = new_rx_count;
+ }
+
+err_setup_rx:
+ if (err && set_tx)
+ e1000e_free_tx_resources(temp_tx);
+err_setup:
+ e1000e_up(adapter);
+ pm_runtime_put_sync(netdev->dev.parent);
+free_temp:
+ vfree(temp_tx);
+ vfree(temp_rx);
+clear_reset:
+ clear_bit(__E1000_RESETTING, &adapter->state);
+ return err;
+}
+
+static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data,
+ int reg, int offset, u32 mask, u32 write)
+{
+ u32 pat, val;
+ static const u32 test[] = {
+ 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF
+ };
+ for (pat = 0; pat < ARRAY_SIZE(test); pat++) {
+ E1000_WRITE_REG_ARRAY(&adapter->hw, reg, offset,
+ (test[pat] & write));
+ val = E1000_READ_REG_ARRAY(&adapter->hw, reg, offset);
+ if (val != (test[pat] & write & mask)) {
+ e_err("pattern test failed (reg 0x%05X): got 0x%08X expected 0x%08X\n",
+ reg + (offset << 2), val,
+ (test[pat] & write & mask));
+ *data = reg;
+ return true;
+ }
+ }
+ return false;
+}
+
+static bool reg_set_and_check(struct e1000_adapter *adapter, u64 *data,
+ int reg, u32 mask, u32 write)
+{
+ u32 val;
+
+ __ew32(&adapter->hw, reg, write & mask);
+ val = __er32(&adapter->hw, reg);
+ if ((write & mask) != (val & mask)) {
+ e_err("set/check test failed (reg 0x%05X): got 0x%08X expected 0x%08X\n",
+ reg, (val & mask), (write & mask));
+ *data = reg;
+ return true;
+ }
+ return false;
+}
+
+#define REG_PATTERN_TEST_ARRAY(reg, offset, mask, write) \
+ do { \
+ if (reg_pattern_test(adapter, data, reg, offset, mask, write)) \
+ return 1; \
+ } while (0)
+#define REG_PATTERN_TEST(reg, mask, write) \
+ REG_PATTERN_TEST_ARRAY(reg, 0, mask, write)
+
+#define REG_SET_AND_CHECK(reg, mask, write) \
+ do { \
+ if (reg_set_and_check(adapter, data, reg, mask, write)) \
+ return 1; \
+ } while (0)
+
+static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct e1000_mac_info *mac = &adapter->hw.mac;
+ u32 value;
+ u32 before;
+ u32 after;
+ u32 i;
+ u32 toggle;
+ u32 mask;
+ u32 wlock_mac = 0;
+
+ /* The status register is Read Only, so a write should fail.
+ * Some bits that get toggled are ignored. There are several bits
+ * on newer hardware that are r/w.
+ */
+ switch (mac->type) {
+ case e1000_82571:
+ case e1000_82572:
+ case e1000_80003es2lan:
+ toggle = 0x7FFFF3FF;
+ break;
+ default:
+ toggle = 0x7FFFF033;
+ break;
+ }
+
+ before = er32(STATUS);
+ value = (er32(STATUS) & toggle);
+ ew32(STATUS, toggle);
+ after = er32(STATUS) & toggle;
+ if (value != after) {
+ e_err("failed STATUS register test got: 0x%08X expected: 0x%08X\n",
+ after, value);
+ *data = 1;
+ return 1;
+ }
+ /* restore previous status */
+ ew32(STATUS, before);
+
+ if (!(adapter->flags & FLAG_IS_ICH)) {
+ REG_PATTERN_TEST(E1000_FCAL, 0xFFFFFFFF, 0xFFFFFFFF);
+ REG_PATTERN_TEST(E1000_FCAH, 0x0000FFFF, 0xFFFFFFFF);
+ REG_PATTERN_TEST(E1000_FCT, 0x0000FFFF, 0xFFFFFFFF);
+ REG_PATTERN_TEST(E1000_VET, 0x0000FFFF, 0xFFFFFFFF);
+ }
+
+ REG_PATTERN_TEST(E1000_RDTR, 0x0000FFFF, 0xFFFFFFFF);
+ REG_PATTERN_TEST(E1000_RDBAH(0), 0xFFFFFFFF, 0xFFFFFFFF);
+ REG_PATTERN_TEST(E1000_RDLEN(0), 0x000FFF80, 0x000FFFFF);
+ REG_PATTERN_TEST(E1000_RDH(0), 0x0000FFFF, 0x0000FFFF);
+ REG_PATTERN_TEST(E1000_RDT(0), 0x0000FFFF, 0x0000FFFF);
+ REG_PATTERN_TEST(E1000_FCRTH, 0x0000FFF8, 0x0000FFF8);
+ REG_PATTERN_TEST(E1000_FCTTV, 0x0000FFFF, 0x0000FFFF);
+ REG_PATTERN_TEST(E1000_TIPG, 0x3FFFFFFF, 0x3FFFFFFF);
+ REG_PATTERN_TEST(E1000_TDBAH(0), 0xFFFFFFFF, 0xFFFFFFFF);
+ REG_PATTERN_TEST(E1000_TDLEN(0), 0x000FFF80, 0x000FFFFF);
+
+ REG_SET_AND_CHECK(E1000_RCTL, 0xFFFFFFFF, 0x00000000);
+
+ before = ((adapter->flags & FLAG_IS_ICH) ? 0x06C3B33E : 0x06DFB3FE);
+ REG_SET_AND_CHECK(E1000_RCTL, before, 0x003FFFFB);
+ REG_SET_AND_CHECK(E1000_TCTL, 0xFFFFFFFF, 0x00000000);
+
+ REG_SET_AND_CHECK(E1000_RCTL, before, 0xFFFFFFFF);
+ REG_PATTERN_TEST(E1000_RDBAL(0), 0xFFFFFFF0, 0xFFFFFFFF);
+ if (!(adapter->flags & FLAG_IS_ICH))
+ REG_PATTERN_TEST(E1000_TXCW, 0xC000FFFF, 0x0000FFFF);
+ REG_PATTERN_TEST(E1000_TDBAL(0), 0xFFFFFFF0, 0xFFFFFFFF);
+ REG_PATTERN_TEST(E1000_TIDV, 0x0000FFFF, 0x0000FFFF);
+ mask = 0x8003FFFF;
+ switch (mac->type) {
+ case e1000_ich10lan:
+ case e1000_pchlan:
+ case e1000_pch2lan:
+ case e1000_pch_lpt:
+ case e1000_pch_spt:
+ mask |= (1 << 18);
+ break;
+ default:
+ break;
+ }
+
+ if ((mac->type == e1000_pch_lpt) || (mac->type == e1000_pch_spt))
+ wlock_mac = (er32(FWSM) & E1000_FWSM_WLOCK_MAC_MASK) >>
+ E1000_FWSM_WLOCK_MAC_SHIFT;
+
+ for (i = 0; i < mac->rar_entry_count; i++) {
+ if ((mac->type == e1000_pch_lpt) ||
+ (mac->type == e1000_pch_spt)) {
+ /* Cannot test write-protected SHRAL[n] registers */
+ if ((wlock_mac == 1) || (wlock_mac && (i > wlock_mac)))
+ continue;
+
+ /* SHRAH[9] different than the others */
+ if (i == 10)
+ mask |= (1 << 30);
+ else
+ mask &= ~(1 << 30);
+ }
+ if (mac->type == e1000_pch2lan) {
+ /* SHRAH[0,1,2] different than previous */
+ if (i == 1)
+ mask &= 0xFFF4FFFF;
+ /* SHRAH[3] different than SHRAH[0,1,2] */
+ if (i == 4)
+ mask |= (1 << 30);
+ /* RAR[1-6] owned by management engine - skipping */
+ if (i > 0)
+ i += 6;
+ }
+
+ REG_PATTERN_TEST_ARRAY(E1000_RA, ((i << 1) + 1), mask,
+ 0xFFFFFFFF);
+ /* reset index to actual value */
+ if ((mac->type == e1000_pch2lan) && (i > 6))
+ i -= 6;
+ }
+
+ for (i = 0; i < mac->mta_reg_count; i++)
+ REG_PATTERN_TEST_ARRAY(E1000_MTA, i, 0xFFFFFFFF, 0xFFFFFFFF);
+
+ *data = 0;
+
+ return 0;
+}
+
+static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data)
+{
+ u16 temp;
+ u16 checksum = 0;
+ u16 i;
+
+ *data = 0;
+ /* Read and add up the contents of the EEPROM */
+ for (i = 0; i < (NVM_CHECKSUM_REG + 1); i++) {
+ if ((e1000_read_nvm(&adapter->hw, i, 1, &temp)) < 0) {
+ *data = 1;
+ return *data;
+ }
+ checksum += temp;
+ }
+
+ /* If Checksum is not Correct return error else test passed */
+ if ((checksum != (u16)NVM_SUM) && !(*data))
+ *data = 2;
+
+ return *data;
+}
+
+static irqreturn_t e1000_test_intr(int __always_unused irq, void *data)
+{
+ struct net_device *netdev = (struct net_device *)data;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+
+ adapter->test_icr |= er32(ICR);
+
+ return IRQ_HANDLED;
+}
+
+static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct e1000_hw *hw = &adapter->hw;
+ u32 mask;
+ u32 shared_int = 1;
+ u32 irq = adapter->pdev->irq;
+ int i;
+ int ret_val = 0;
+ int int_mode = E1000E_INT_MODE_LEGACY;
+
+ *data = 0;
+
+ /* NOTE: we don't test MSI/MSI-X interrupts here, yet */
+ if (adapter->int_mode == E1000E_INT_MODE_MSIX) {
+ int_mode = adapter->int_mode;
+ e1000e_reset_interrupt_capability(adapter);
+ adapter->int_mode = E1000E_INT_MODE_LEGACY;
+ e1000e_set_interrupt_capability(adapter);
+ }
+ /* Hook up test interrupt handler just for this test */
+ if (!request_irq(irq, e1000_test_intr, IRQF_PROBE_SHARED, netdev->name,
+ netdev)) {
+ shared_int = 0;
+ } else if (request_irq(irq, e1000_test_intr, IRQF_SHARED, netdev->name,
+ netdev)) {
+ *data = 1;
+ ret_val = -1;
+ goto out;
+ }
+ e_info("testing %s interrupt\n", (shared_int ? "shared" : "unshared"));
+
+ /* Disable all the interrupts */
+ ew32(IMC, 0xFFFFFFFF);
+ e1e_flush();
+ usleep_range(10000, 20000);
+
+ /* Test each interrupt */
+ for (i = 0; i < 10; i++) {
+ /* Interrupt to test */
+ mask = 1 << i;
+
+ if (adapter->flags & FLAG_IS_ICH) {
+ switch (mask) {
+ case E1000_ICR_RXSEQ:
+ continue;
+ case 0x00000100:
+ if (adapter->hw.mac.type == e1000_ich8lan ||
+ adapter->hw.mac.type == e1000_ich9lan)
+ continue;
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (!shared_int) {
+ /* Disable the interrupt to be reported in
+ * the cause register and then force the same
+ * interrupt and see if one gets posted. If
+ * an interrupt was posted to the bus, the
+ * test failed.
+ */
+ adapter->test_icr = 0;
+ ew32(IMC, mask);
+ ew32(ICS, mask);
+ e1e_flush();
+ usleep_range(10000, 20000);
+
+ if (adapter->test_icr & mask) {
+ *data = 3;
+ break;
+ }
+ }
+
+ /* Enable the interrupt to be reported in
+ * the cause register and then force the same
+ * interrupt and see if one gets posted. If
+ * an interrupt was not posted to the bus, the
+ * test failed.
+ */
+ adapter->test_icr = 0;
+ ew32(IMS, mask);
+ ew32(ICS, mask);
+ e1e_flush();
+ usleep_range(10000, 20000);
+
+ if (!(adapter->test_icr & mask)) {
+ *data = 4;
+ break;
+ }
+
+ if (!shared_int) {
+ /* Disable the other interrupts to be reported in
+ * the cause register and then force the other
+ * interrupts and see if any get posted. If
+ * an interrupt was posted to the bus, the
+ * test failed.
+ */
+ adapter->test_icr = 0;
+ ew32(IMC, ~mask & 0x00007FFF);
+ ew32(ICS, ~mask & 0x00007FFF);
+ e1e_flush();
+ usleep_range(10000, 20000);
+
+ if (adapter->test_icr) {
+ *data = 5;
+ break;
+ }
+ }
+ }
+
+ /* Disable all the interrupts */
+ ew32(IMC, 0xFFFFFFFF);
+ e1e_flush();
+ usleep_range(10000, 20000);
+
+ /* Unhook test interrupt handler */
+ free_irq(irq, netdev);
+
+out:
+ if (int_mode == E1000E_INT_MODE_MSIX) {
+ e1000e_reset_interrupt_capability(adapter);
+ adapter->int_mode = int_mode;
+ e1000e_set_interrupt_capability(adapter);
+ }
+
+ return ret_val;
+}
+
+static void e1000_free_desc_rings(struct e1000_adapter *adapter)
+{
+ struct e1000_ring *tx_ring = &adapter->test_tx_ring;
+ struct e1000_ring *rx_ring = &adapter->test_rx_ring;
+ struct pci_dev *pdev = adapter->pdev;
+ struct e1000_buffer *buffer_info;
+ int i;
+
+ if (tx_ring->desc && tx_ring->buffer_info) {
+ for (i = 0; i < tx_ring->count; i++) {
+ buffer_info = &tx_ring->buffer_info[i];
+
+ if (buffer_info->dma)
+ dma_unmap_single(&pdev->dev,
+ buffer_info->dma,
+ buffer_info->length,
+ DMA_TO_DEVICE);
+ if (buffer_info->skb)
+ dev_kfree_skb(buffer_info->skb);
+ }
+ }
+
+ if (rx_ring->desc && rx_ring->buffer_info) {
+ for (i = 0; i < rx_ring->count; i++) {
+ buffer_info = &rx_ring->buffer_info[i];
+
+ if (buffer_info->dma)
+ dma_unmap_single(&pdev->dev,
+ buffer_info->dma,
+ 2048, DMA_FROM_DEVICE);
+ if (buffer_info->skb)
+ dev_kfree_skb(buffer_info->skb);
+ }
+ }
+
+ if (tx_ring->desc) {
+ dma_free_coherent(&pdev->dev, tx_ring->size, tx_ring->desc,
+ tx_ring->dma);
+ tx_ring->desc = NULL;
+ }
+ if (rx_ring->desc) {
+ dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc,
+ rx_ring->dma);
+ rx_ring->desc = NULL;
+ }
+
+ kfree(tx_ring->buffer_info);
+ tx_ring->buffer_info = NULL;
+ kfree(rx_ring->buffer_info);
+ rx_ring->buffer_info = NULL;
+}
+
+static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
+{
+ struct e1000_ring *tx_ring = &adapter->test_tx_ring;
+ struct e1000_ring *rx_ring = &adapter->test_rx_ring;
+ struct pci_dev *pdev = adapter->pdev;
+ struct e1000_hw *hw = &adapter->hw;
+ u32 rctl;
+ int i;
+ int ret_val;
+
+ /* Setup Tx descriptor ring and Tx buffers */
+
+ if (!tx_ring->count)
+ tx_ring->count = E1000_DEFAULT_TXD;
+
+ tx_ring->buffer_info = kcalloc(tx_ring->count,
+ sizeof(struct e1000_buffer), GFP_KERNEL);
+ if (!tx_ring->buffer_info) {
+ ret_val = 1;
+ goto err_nomem;
+ }
+
+ tx_ring->size = tx_ring->count * sizeof(struct e1000_tx_desc);
+ tx_ring->size = ALIGN(tx_ring->size, 4096);
+ tx_ring->desc = dma_alloc_coherent(&pdev->dev, tx_ring->size,
+ &tx_ring->dma, GFP_KERNEL);
+ if (!tx_ring->desc) {
+ ret_val = 2;
+ goto err_nomem;
+ }
+ tx_ring->next_to_use = 0;
+ tx_ring->next_to_clean = 0;
+
+ ew32(TDBAL(0), ((u64)tx_ring->dma & 0x00000000FFFFFFFF));
+ ew32(TDBAH(0), ((u64)tx_ring->dma >> 32));
+ ew32(TDLEN(0), tx_ring->count * sizeof(struct e1000_tx_desc));
+ ew32(TDH(0), 0);
+ ew32(TDT(0), 0);
+ ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN | E1000_TCTL_MULR |
+ E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT |
+ E1000_COLLISION_DISTANCE << E1000_COLD_SHIFT);
+
+ for (i = 0; i < tx_ring->count; i++) {
+ struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*tx_ring, i);
+ struct sk_buff *skb;
+ unsigned int skb_size = 1024;
+
+ skb = alloc_skb(skb_size, GFP_KERNEL);
+ if (!skb) {
+ ret_val = 3;
+ goto err_nomem;
+ }
+ skb_put(skb, skb_size);
+ tx_ring->buffer_info[i].skb = skb;
+ tx_ring->buffer_info[i].length = skb->len;
+ tx_ring->buffer_info[i].dma =
+ dma_map_single(&pdev->dev, skb->data, skb->len,
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(&pdev->dev,
+ tx_ring->buffer_info[i].dma)) {
+ ret_val = 4;
+ goto err_nomem;
+ }
+ tx_desc->buffer_addr = cpu_to_le64(tx_ring->buffer_info[i].dma);
+ tx_desc->lower.data = cpu_to_le32(skb->len);
+ tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP |
+ E1000_TXD_CMD_IFCS |
+ E1000_TXD_CMD_RS);
+ tx_desc->upper.data = 0;
+ }
+
+ /* Setup Rx descriptor ring and Rx buffers */
+
+ if (!rx_ring->count)
+ rx_ring->count = E1000_DEFAULT_RXD;
+
+ rx_ring->buffer_info = kcalloc(rx_ring->count,
+ sizeof(struct e1000_buffer), GFP_KERNEL);
+ if (!rx_ring->buffer_info) {
+ ret_val = 5;
+ goto err_nomem;
+ }
+
+ rx_ring->size = rx_ring->count * sizeof(union e1000_rx_desc_extended);
+ rx_ring->desc = dma_alloc_coherent(&pdev->dev, rx_ring->size,
+ &rx_ring->dma, GFP_KERNEL);
+ if (!rx_ring->desc) {
+ ret_val = 6;
+ goto err_nomem;
+ }
+ rx_ring->next_to_use = 0;
+ rx_ring->next_to_clean = 0;
+
+ rctl = er32(RCTL);
+ if (!(adapter->flags2 & FLAG2_NO_DISABLE_RX))
+ ew32(RCTL, rctl & ~E1000_RCTL_EN);
+ ew32(RDBAL(0), ((u64)rx_ring->dma & 0xFFFFFFFF));
+ ew32(RDBAH(0), ((u64)rx_ring->dma >> 32));
+ ew32(RDLEN(0), rx_ring->size);
+ ew32(RDH(0), 0);
+ ew32(RDT(0), 0);
+ rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
+ E1000_RCTL_UPE | E1000_RCTL_MPE | E1000_RCTL_LPE |
+ E1000_RCTL_SBP | E1000_RCTL_SECRC |
+ E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
+ (adapter->hw.mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
+ ew32(RCTL, rctl);
+
+ for (i = 0; i < rx_ring->count; i++) {
+ union e1000_rx_desc_extended *rx_desc;
+ struct sk_buff *skb;
+
+ skb = alloc_skb(2048 + NET_IP_ALIGN, GFP_KERNEL);
+ if (!skb) {
+ ret_val = 7;
+ goto err_nomem;
+ }
+ skb_reserve(skb, NET_IP_ALIGN);
+ rx_ring->buffer_info[i].skb = skb;
+ rx_ring->buffer_info[i].dma =
+ dma_map_single(&pdev->dev, skb->data, 2048,
+ DMA_FROM_DEVICE);
+ if (dma_mapping_error(&pdev->dev,
+ rx_ring->buffer_info[i].dma)) {
+ ret_val = 8;
+ goto err_nomem;
+ }
+ rx_desc = E1000_RX_DESC_EXT(*rx_ring, i);
+ rx_desc->read.buffer_addr =
+ cpu_to_le64(rx_ring->buffer_info[i].dma);
+ memset(skb->data, 0x00, skb->len);
+ }
+
+ return 0;
+
+err_nomem:
+ e1000_free_desc_rings(adapter);
+ return ret_val;
+}
+
+static void e1000_phy_disable_receiver(struct e1000_adapter *adapter)
+{
+ /* Write out to PHY registers 29 and 30 to disable the Receiver. */
+ e1e_wphy(&adapter->hw, 29, 0x001F);
+ e1e_wphy(&adapter->hw, 30, 0x8FFC);
+ e1e_wphy(&adapter->hw, 29, 0x001A);
+ e1e_wphy(&adapter->hw, 30, 0x8FF0);
+}
+
+static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 ctrl_reg = 0;
+ u16 phy_reg = 0;
+ s32 ret_val = 0;
+
+ hw->mac.autoneg = 0;
+
+ if (hw->phy.type == e1000_phy_ife) {
+ /* force 100, set loopback */
+ e1e_wphy(hw, MII_BMCR, 0x6100);
+
+ /* Now set up the MAC to the same speed/duplex as the PHY. */
+ ctrl_reg = er32(CTRL);
+ ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
+ ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
+ E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
+ E1000_CTRL_SPD_100 |/* Force Speed to 100 */
+ E1000_CTRL_FD); /* Force Duplex to FULL */
+
+ ew32(CTRL, ctrl_reg);
+ e1e_flush();
+ usleep_range(500, 1000);
+
+ return 0;
+ }
+
+ /* Specific PHY configuration for loopback */
+ switch (hw->phy.type) {
+ case e1000_phy_m88:
+ /* Auto-MDI/MDIX Off */
+ e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL, 0x0808);
+ /* reset to update Auto-MDI/MDIX */
+ e1e_wphy(hw, MII_BMCR, 0x9140);
+ /* autoneg off */
+ e1e_wphy(hw, MII_BMCR, 0x8140);
+ break;
+ case e1000_phy_gg82563:
+ e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x1CC);
+ break;
+ case e1000_phy_bm:
+ /* Set Default MAC Interface speed to 1GB */
+ e1e_rphy(hw, PHY_REG(2, 21), &phy_reg);
+ phy_reg &= ~0x0007;
+ phy_reg |= 0x006;
+ e1e_wphy(hw, PHY_REG(2, 21), phy_reg);
+ /* Assert SW reset for above settings to take effect */
+ hw->phy.ops.commit(hw);
+ usleep_range(1000, 2000);
+ /* Force Full Duplex */
+ e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
+ e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x000C);
+ /* Set Link Up (in force link) */
+ e1e_rphy(hw, PHY_REG(776, 16), &phy_reg);
+ e1e_wphy(hw, PHY_REG(776, 16), phy_reg | 0x0040);
+ /* Force Link */
+ e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
+ e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x0040);
+ /* Set Early Link Enable */
+ e1e_rphy(hw, PHY_REG(769, 20), &phy_reg);
+ e1e_wphy(hw, PHY_REG(769, 20), phy_reg | 0x0400);
+ break;
+ case e1000_phy_82577:
+ case e1000_phy_82578:
+ /* Workaround: K1 must be disabled for stable 1Gbps operation */
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val) {
+ e_err("Cannot setup 1Gbps loopback.\n");
+ return ret_val;
+ }
+ e1000_configure_k1_ich8lan(hw, false);
+ hw->phy.ops.release(hw);
+ break;
+ case e1000_phy_82579:
+ /* Disable PHY energy detect power down */
+ e1e_rphy(hw, PHY_REG(0, 21), &phy_reg);
+ e1e_wphy(hw, PHY_REG(0, 21), phy_reg & ~(1 << 3));
+ /* Disable full chip energy detect */
+ e1e_rphy(hw, PHY_REG(776, 18), &phy_reg);
+ e1e_wphy(hw, PHY_REG(776, 18), phy_reg | 1);
+ /* Enable loopback on the PHY */
+ e1e_wphy(hw, I82577_PHY_LBK_CTRL, 0x8001);
+ break;
+ default:
+ break;
+ }
+
+ /* force 1000, set loopback */
+ e1e_wphy(hw, MII_BMCR, 0x4140);
+ msleep(250);
+
+ /* Now set up the MAC to the same speed/duplex as the PHY. */
+ ctrl_reg = er32(CTRL);
+ ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
+ ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
+ E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
+ E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */
+ E1000_CTRL_FD); /* Force Duplex to FULL */
+
+ if (adapter->flags & FLAG_IS_ICH)
+ ctrl_reg |= E1000_CTRL_SLU; /* Set Link Up */
+
+ if (hw->phy.media_type == e1000_media_type_copper &&
+ hw->phy.type == e1000_phy_m88) {
+ ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */
+ } else {
+ /* Set the ILOS bit on the fiber Nic if half duplex link is
+ * detected.
+ */
+ if ((er32(STATUS) & E1000_STATUS_FD) == 0)
+ ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU);
+ }
+
+ ew32(CTRL, ctrl_reg);
+
+ /* Disable the receiver on the PHY so when a cable is plugged in, the
+ * PHY does not begin to autoneg when a cable is reconnected to the NIC.
+ */
+ if (hw->phy.type == e1000_phy_m88)
+ e1000_phy_disable_receiver(adapter);
+
+ usleep_range(500, 1000);
+
+ return 0;
+}
+
+static int e1000_set_82571_fiber_loopback(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 ctrl = er32(CTRL);
+ int link;
+
+ /* special requirements for 82571/82572 fiber adapters */
+
+ /* jump through hoops to make sure link is up because serdes
+ * link is hardwired up
+ */
+ ctrl |= E1000_CTRL_SLU;
+ ew32(CTRL, ctrl);
+
+ /* disable autoneg */
+ ctrl = er32(TXCW);
+ ctrl &= ~(1 << 31);
+ ew32(TXCW, ctrl);
+
+ link = (er32(STATUS) & E1000_STATUS_LU);
+
+ if (!link) {
+ /* set invert loss of signal */
+ ctrl = er32(CTRL);
+ ctrl |= E1000_CTRL_ILOS;
+ ew32(CTRL, ctrl);
+ }
+
+ /* special write to serdes control register to enable SerDes analog
+ * loopback
+ */
+ ew32(SCTL, E1000_SCTL_ENABLE_SERDES_LOOPBACK);
+ e1e_flush();
+ usleep_range(10000, 20000);
+
+ return 0;
+}
+
+/* only call this for fiber/serdes connections to es2lan */
+static int e1000_set_es2lan_mac_loopback(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 ctrlext = er32(CTRL_EXT);
+ u32 ctrl = er32(CTRL);
+
+ /* save CTRL_EXT to restore later, reuse an empty variable (unused
+ * on mac_type 80003es2lan)
+ */
+ adapter->tx_fifo_head = ctrlext;
+
+ /* clear the serdes mode bits, putting the device into mac loopback */
+ ctrlext &= ~E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES;
+ ew32(CTRL_EXT, ctrlext);
+
+ /* force speed to 1000/FD, link up */
+ ctrl &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100);
+ ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX |
+ E1000_CTRL_SPD_1000 | E1000_CTRL_FD);
+ ew32(CTRL, ctrl);
+
+ /* set mac loopback */
+ ctrl = er32(RCTL);
+ ctrl |= E1000_RCTL_LBM_MAC;
+ ew32(RCTL, ctrl);
+
+ /* set testing mode parameters (no need to reset later) */
+#define KMRNCTRLSTA_OPMODE (0x1F << 16)
+#define KMRNCTRLSTA_OPMODE_1GB_FD_GMII 0x0582
+ ew32(KMRNCTRLSTA,
+ (KMRNCTRLSTA_OPMODE | KMRNCTRLSTA_OPMODE_1GB_FD_GMII));
+
+ return 0;
+}
+
+static int e1000_setup_loopback_test(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 rctl;
+
+ if (hw->phy.media_type == e1000_media_type_fiber ||
+ hw->phy.media_type == e1000_media_type_internal_serdes) {
+ switch (hw->mac.type) {
+ case e1000_80003es2lan:
+ return e1000_set_es2lan_mac_loopback(adapter);
+ case e1000_82571:
+ case e1000_82572:
+ return e1000_set_82571_fiber_loopback(adapter);
+ default:
+ rctl = er32(RCTL);
+ rctl |= E1000_RCTL_LBM_TCVR;
+ ew32(RCTL, rctl);
+ return 0;
+ }
+ } else if (hw->phy.media_type == e1000_media_type_copper) {
+ return e1000_integrated_phy_loopback(adapter);
+ }
+
+ return 7;
+}
+
+static void e1000_loopback_cleanup(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 rctl;
+ u16 phy_reg;
+
+ rctl = er32(RCTL);
+ rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
+ ew32(RCTL, rctl);
+
+ switch (hw->mac.type) {
+ case e1000_80003es2lan:
+ if (hw->phy.media_type == e1000_media_type_fiber ||
+ hw->phy.media_type == e1000_media_type_internal_serdes) {
+ /* restore CTRL_EXT, stealing space from tx_fifo_head */
+ ew32(CTRL_EXT, adapter->tx_fifo_head);
+ adapter->tx_fifo_head = 0;
+ }
+ /* fall through */
+ case e1000_82571:
+ case e1000_82572:
+ if (hw->phy.media_type == e1000_media_type_fiber ||
+ hw->phy.media_type == e1000_media_type_internal_serdes) {
+ ew32(SCTL, E1000_SCTL_DISABLE_SERDES_LOOPBACK);
+ e1e_flush();
+ usleep_range(10000, 20000);
+ break;
+ }
+ /* Fall Through */
+ default:
+ hw->mac.autoneg = 1;
+ if (hw->phy.type == e1000_phy_gg82563)
+ e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x180);
+ e1e_rphy(hw, MII_BMCR, &phy_reg);
+ if (phy_reg & BMCR_LOOPBACK) {
+ phy_reg &= ~BMCR_LOOPBACK;
+ e1e_wphy(hw, MII_BMCR, phy_reg);
+ if (hw->phy.ops.commit)
+ hw->phy.ops.commit(hw);
+ }
+ break;
+ }
+}
+
+static void e1000_create_lbtest_frame(struct sk_buff *skb,
+ unsigned int frame_size)
+{
+ memset(skb->data, 0xFF, frame_size);
+ frame_size &= ~1;
+ memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
+ memset(&skb->data[frame_size / 2 + 10], 0xBE, 1);
+ memset(&skb->data[frame_size / 2 + 12], 0xAF, 1);
+}
+
+static int e1000_check_lbtest_frame(struct sk_buff *skb,
+ unsigned int frame_size)
+{
+ frame_size &= ~1;
+ if (*(skb->data + 3) == 0xFF)
+ if ((*(skb->data + frame_size / 2 + 10) == 0xBE) &&
+ (*(skb->data + frame_size / 2 + 12) == 0xAF))
+ return 0;
+ return 13;
+}
+
+static int e1000_run_loopback_test(struct e1000_adapter *adapter)
+{
+ struct e1000_ring *tx_ring = &adapter->test_tx_ring;
+ struct e1000_ring *rx_ring = &adapter->test_rx_ring;
+ struct pci_dev *pdev = adapter->pdev;
+ struct e1000_hw *hw = &adapter->hw;
+ struct e1000_buffer *buffer_info;
+ int i, j, k, l;
+ int lc;
+ int good_cnt;
+ int ret_val = 0;
+ unsigned long time;
+
+ ew32(RDT(0), rx_ring->count - 1);
+
+ /* Calculate the loop count based on the largest descriptor ring
+ * The idea is to wrap the largest ring a number of times using 64
+ * send/receive pairs during each loop
+ */
+
+ if (rx_ring->count <= tx_ring->count)
+ lc = ((tx_ring->count / 64) * 2) + 1;
+ else
+ lc = ((rx_ring->count / 64) * 2) + 1;
+
+ k = 0;
+ l = 0;
+ /* loop count loop */
+ for (j = 0; j <= lc; j++) {
+ /* send the packets */
+ for (i = 0; i < 64; i++) {
+ buffer_info = &tx_ring->buffer_info[k];
+
+ e1000_create_lbtest_frame(buffer_info->skb, 1024);
+ dma_sync_single_for_device(&pdev->dev,
+ buffer_info->dma,
+ buffer_info->length,
+ DMA_TO_DEVICE);
+ k++;
+ if (k == tx_ring->count)
+ k = 0;
+ }
+ ew32(TDT(0), k);
+ e1e_flush();
+ msleep(200);
+ time = jiffies; /* set the start time for the receive */
+ good_cnt = 0;
+ /* receive the sent packets */
+ do {
+ buffer_info = &rx_ring->buffer_info[l];
+
+ dma_sync_single_for_cpu(&pdev->dev,
+ buffer_info->dma, 2048,
+ DMA_FROM_DEVICE);
+
+ ret_val = e1000_check_lbtest_frame(buffer_info->skb,
+ 1024);
+ if (!ret_val)
+ good_cnt++;
+ l++;
+ if (l == rx_ring->count)
+ l = 0;
+ /* time + 20 msecs (200 msecs on 2.4) is more than
+ * enough time to complete the receives, if it's
+ * exceeded, break and error off
+ */
+ } while ((good_cnt < 64) && !time_after(jiffies, time + 20));
+ if (good_cnt != 64) {
+ ret_val = 13; /* ret_val is the same as mis-compare */
+ break;
+ }
+ if (time_after(jiffies, time + 20)) {
+ ret_val = 14; /* error code for time out error */
+ break;
+ }
+ }
+ return ret_val;
+}
+
+static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data)
+{
+ struct e1000_hw *hw = &adapter->hw;
+
+ /* PHY loopback cannot be performed if SoL/IDER sessions are active */
+ if (hw->phy.ops.check_reset_block &&
+ hw->phy.ops.check_reset_block(hw)) {
+ e_err("Cannot do PHY loopback test when SoL/IDER is active.\n");
+ *data = 0;
+ goto out;
+ }
+
+ *data = e1000_setup_desc_rings(adapter);
+ if (*data)
+ goto out;
+
+ *data = e1000_setup_loopback_test(adapter);
+ if (*data)
+ goto err_loopback;
+
+ *data = e1000_run_loopback_test(adapter);
+ e1000_loopback_cleanup(adapter);
+
+err_loopback:
+ e1000_free_desc_rings(adapter);
+out:
+ return *data;
+}
+
+static int e1000_link_test(struct e1000_adapter *adapter, u64 *data)
+{
+ struct e1000_hw *hw = &adapter->hw;
+
+ *data = 0;
+ if (hw->phy.media_type == e1000_media_type_internal_serdes) {
+ int i = 0;
+
+ hw->mac.serdes_has_link = false;
+
+ /* On some blade server designs, link establishment
+ * could take as long as 2-3 minutes
+ */
+ do {
+ hw->mac.ops.check_for_link(hw);
+ if (hw->mac.serdes_has_link)
+ return *data;
+ msleep(20);
+ } while (i++ < 3750);
+
+ *data = 1;
+ } else {
+ hw->mac.ops.check_for_link(hw);
+ if (hw->mac.autoneg)
+ /* On some Phy/switch combinations, link establishment
+ * can take a few seconds more than expected.
+ */
+ msleep_interruptible(5000);
+
+ if (!(er32(STATUS) & E1000_STATUS_LU))
+ *data = 1;
+ }
+ return *data;
+}
+
+static int e1000e_get_sset_count(struct net_device __always_unused *netdev,
+ int sset)
+{
+ switch (sset) {
+ case ETH_SS_TEST:
+ return E1000_TEST_LEN;
+ case ETH_SS_STATS:
+ return E1000_STATS_LEN;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static void e1000_diag_test(struct net_device *netdev,
+ struct ethtool_test *eth_test, u64 *data)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ u16 autoneg_advertised;
+ u8 forced_speed_duplex;
+ u8 autoneg;
+ bool if_running = netif_running(netdev);
+
+ pm_runtime_get_sync(netdev->dev.parent);
+
+ set_bit(__E1000_TESTING, &adapter->state);
+
+ if (!if_running) {
+ /* Get control of and reset hardware */
+ if (adapter->flags & FLAG_HAS_AMT)
+ e1000e_get_hw_control(adapter);
+
+ e1000e_power_up_phy(adapter);
+
+ adapter->hw.phy.autoneg_wait_to_complete = 1;
+ e1000e_reset(adapter);
+ adapter->hw.phy.autoneg_wait_to_complete = 0;
+ }
+
+ if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
+ /* Offline tests */
+
+ /* save speed, duplex, autoneg settings */
+ autoneg_advertised = adapter->hw.phy.autoneg_advertised;
+ forced_speed_duplex = adapter->hw.mac.forced_speed_duplex;
+ autoneg = adapter->hw.mac.autoneg;
+
+ e_info("offline testing starting\n");
+
+ if (if_running)
+ /* indicate we're in test mode */
+ dev_close(netdev);
+
+ if (e1000_reg_test(adapter, &data[0]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+
+ e1000e_reset(adapter);
+ if (e1000_eeprom_test(adapter, &data[1]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+
+ e1000e_reset(adapter);
+ if (e1000_intr_test(adapter, &data[2]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+
+ e1000e_reset(adapter);
+ if (e1000_loopback_test(adapter, &data[3]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+
+ /* force this routine to wait until autoneg complete/timeout */
+ adapter->hw.phy.autoneg_wait_to_complete = 1;
+ e1000e_reset(adapter);
+ adapter->hw.phy.autoneg_wait_to_complete = 0;
+
+ if (e1000_link_test(adapter, &data[4]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+
+ /* restore speed, duplex, autoneg settings */
+ adapter->hw.phy.autoneg_advertised = autoneg_advertised;
+ adapter->hw.mac.forced_speed_duplex = forced_speed_duplex;
+ adapter->hw.mac.autoneg = autoneg;
+ e1000e_reset(adapter);
+
+ clear_bit(__E1000_TESTING, &adapter->state);
+ if (if_running)
+ dev_open(netdev);
+ } else {
+ /* Online tests */
+
+ e_info("online testing starting\n");
+
+ /* register, eeprom, intr and loopback tests not run online */
+ data[0] = 0;
+ data[1] = 0;
+ data[2] = 0;
+ data[3] = 0;
+
+ if (e1000_link_test(adapter, &data[4]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+
+ clear_bit(__E1000_TESTING, &adapter->state);
+ }
+
+ if (!if_running) {
+ e1000e_reset(adapter);
+
+ if (adapter->flags & FLAG_HAS_AMT)
+ e1000e_release_hw_control(adapter);
+ }
+
+ msleep_interruptible(4 * 1000);
+
+ pm_runtime_put_sync(netdev->dev.parent);
+}
+
+static void e1000_get_wol(struct net_device *netdev,
+ struct ethtool_wolinfo *wol)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ wol->supported = 0;
+ wol->wolopts = 0;
+
+ if (!(adapter->flags & FLAG_HAS_WOL) ||
+ !device_can_wakeup(&adapter->pdev->dev))
+ return;
+
+ wol->supported = WAKE_UCAST | WAKE_MCAST |
+ WAKE_BCAST | WAKE_MAGIC | WAKE_PHY;
+
+ /* apply any specific unsupported masks here */
+ if (adapter->flags & FLAG_NO_WAKE_UCAST) {
+ wol->supported &= ~WAKE_UCAST;
+
+ if (adapter->wol & E1000_WUFC_EX)
+ e_err("Interface does not support directed (unicast) frame wake-up packets\n");
+ }
+
+ if (adapter->wol & E1000_WUFC_EX)
+ wol->wolopts |= WAKE_UCAST;
+ if (adapter->wol & E1000_WUFC_MC)
+ wol->wolopts |= WAKE_MCAST;
+ if (adapter->wol & E1000_WUFC_BC)
+ wol->wolopts |= WAKE_BCAST;
+ if (adapter->wol & E1000_WUFC_MAG)
+ wol->wolopts |= WAKE_MAGIC;
+ if (adapter->wol & E1000_WUFC_LNKC)
+ wol->wolopts |= WAKE_PHY;
+}
+
+static int e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ if (!(adapter->flags & FLAG_HAS_WOL) ||
+ !device_can_wakeup(&adapter->pdev->dev) ||
+ (wol->wolopts & ~(WAKE_UCAST | WAKE_MCAST | WAKE_BCAST |
+ WAKE_MAGIC | WAKE_PHY)))
+ return -EOPNOTSUPP;
+
+ /* these settings will always override what we currently have */
+ adapter->wol = 0;
+
+ if (wol->wolopts & WAKE_UCAST)
+ adapter->wol |= E1000_WUFC_EX;
+ if (wol->wolopts & WAKE_MCAST)
+ adapter->wol |= E1000_WUFC_MC;
+ if (wol->wolopts & WAKE_BCAST)
+ adapter->wol |= E1000_WUFC_BC;
+ if (wol->wolopts & WAKE_MAGIC)
+ adapter->wol |= E1000_WUFC_MAG;
+ if (wol->wolopts & WAKE_PHY)
+ adapter->wol |= E1000_WUFC_LNKC;
+
+ device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
+
+ return 0;
+}
+
+static int e1000_set_phys_id(struct net_device *netdev,
+ enum ethtool_phys_id_state state)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+
+ switch (state) {
+ case ETHTOOL_ID_ACTIVE:
+ pm_runtime_get_sync(netdev->dev.parent);
+
+ if (!hw->mac.ops.blink_led)
+ return 2; /* cycle on/off twice per second */
+
+ hw->mac.ops.blink_led(hw);
+ break;
+
+ case ETHTOOL_ID_INACTIVE:
+ if (hw->phy.type == e1000_phy_ife)
+ e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0);
+ hw->mac.ops.led_off(hw);
+ hw->mac.ops.cleanup_led(hw);
+ pm_runtime_put_sync(netdev->dev.parent);
+ break;
+
+ case ETHTOOL_ID_ON:
+ hw->mac.ops.led_on(hw);
+ break;
+
+ case ETHTOOL_ID_OFF:
+ hw->mac.ops.led_off(hw);
+ break;
+ }
+
+ return 0;
+}
+
+static int e1000_get_coalesce(struct net_device *netdev,
+ struct ethtool_coalesce *ec)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ if (adapter->itr_setting <= 4)
+ ec->rx_coalesce_usecs = adapter->itr_setting;
+ else
+ ec->rx_coalesce_usecs = 1000000 / adapter->itr_setting;
+
+ return 0;
+}
+
+static int e1000_set_coalesce(struct net_device *netdev,
+ struct ethtool_coalesce *ec)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ if ((ec->rx_coalesce_usecs > E1000_MAX_ITR_USECS) ||
+ ((ec->rx_coalesce_usecs > 4) &&
+ (ec->rx_coalesce_usecs < E1000_MIN_ITR_USECS)) ||
+ (ec->rx_coalesce_usecs == 2))
+ return -EINVAL;
+
+ if (ec->rx_coalesce_usecs == 4) {
+ adapter->itr_setting = 4;
+ adapter->itr = adapter->itr_setting;
+ } else if (ec->rx_coalesce_usecs <= 3) {
+ adapter->itr = 20000;
+ adapter->itr_setting = ec->rx_coalesce_usecs;
+ } else {
+ adapter->itr = (1000000 / ec->rx_coalesce_usecs);
+ adapter->itr_setting = adapter->itr & ~3;
+ }
+
+ pm_runtime_get_sync(netdev->dev.parent);
+
+ if (adapter->itr_setting != 0)
+ e1000e_write_itr(adapter, adapter->itr);
+ else
+ e1000e_write_itr(adapter, 0);
+
+ pm_runtime_put_sync(netdev->dev.parent);
+
+ return 0;
+}
+
+static int e1000_nway_reset(struct net_device *netdev)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ if (!netif_running(netdev))
+ return -EAGAIN;
+
+ if (!adapter->hw.mac.autoneg)
+ return -EINVAL;
+
+ pm_runtime_get_sync(netdev->dev.parent);
+ e1000e_reinit_locked(adapter);
+ pm_runtime_put_sync(netdev->dev.parent);
+
+ return 0;
+}
+
+static void e1000_get_ethtool_stats(struct net_device *netdev,
+ struct ethtool_stats __always_unused *stats,
+ u64 *data)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct rtnl_link_stats64 net_stats;
+ int i;
+ char *p = NULL;
+
+ pm_runtime_get_sync(netdev->dev.parent);
+
+ e1000e_get_stats64(netdev, &net_stats);
+
+ pm_runtime_put_sync(netdev->dev.parent);
+
+ for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
+ switch (e1000_gstrings_stats[i].type) {
+ case NETDEV_STATS:
+ p = (char *)&net_stats +
+ e1000_gstrings_stats[i].stat_offset;
+ break;
+ case E1000_STATS:
+ p = (char *)adapter +
+ e1000_gstrings_stats[i].stat_offset;
+ break;
+ default:
+ data[i] = 0;
+ continue;
+ }
+
+ data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
+ sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
+ }
+}
+
+static void e1000_get_strings(struct net_device __always_unused *netdev,
+ u32 stringset, u8 *data)
+{
+ u8 *p = data;
+ int i;
+
+ switch (stringset) {
+ case ETH_SS_TEST:
+ memcpy(data, e1000_gstrings_test, sizeof(e1000_gstrings_test));
+ break;
+ case ETH_SS_STATS:
+ for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
+ memcpy(p, e1000_gstrings_stats[i].stat_string,
+ ETH_GSTRING_LEN);
+ p += ETH_GSTRING_LEN;
+ }
+ break;
+ }
+}
+
+static int e1000_get_rxnfc(struct net_device *netdev,
+ struct ethtool_rxnfc *info,
+ u32 __always_unused *rule_locs)
+{
+ info->data = 0;
+
+ switch (info->cmd) {
+ case ETHTOOL_GRXFH: {
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u32 mrqc;
+
+ pm_runtime_get_sync(netdev->dev.parent);
+ mrqc = er32(MRQC);
+ pm_runtime_put_sync(netdev->dev.parent);
+
+ if (!(mrqc & E1000_MRQC_RSS_FIELD_MASK))
+ return 0;
+
+ switch (info->flow_type) {
+ case TCP_V4_FLOW:
+ if (mrqc & E1000_MRQC_RSS_FIELD_IPV4_TCP)
+ info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+ /* fall through */
+ case UDP_V4_FLOW:
+ case SCTP_V4_FLOW:
+ case AH_ESP_V4_FLOW:
+ case IPV4_FLOW:
+ if (mrqc & E1000_MRQC_RSS_FIELD_IPV4)
+ info->data |= RXH_IP_SRC | RXH_IP_DST;
+ break;
+ case TCP_V6_FLOW:
+ if (mrqc & E1000_MRQC_RSS_FIELD_IPV6_TCP)
+ info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+ /* fall through */
+ case UDP_V6_FLOW:
+ case SCTP_V6_FLOW:
+ case AH_ESP_V6_FLOW:
+ case IPV6_FLOW:
+ if (mrqc & E1000_MRQC_RSS_FIELD_IPV6)
+ info->data |= RXH_IP_SRC | RXH_IP_DST;
+ break;
+ default:
+ break;
+ }
+ return 0;
+ }
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static int e1000e_get_eee(struct net_device *netdev, struct ethtool_eee *edata)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u16 cap_addr, lpa_addr, pcs_stat_addr, phy_data;
+ u32 ret_val;
+
+ if (!(adapter->flags2 & FLAG2_HAS_EEE))
+ return -EOPNOTSUPP;
+
+ switch (hw->phy.type) {
+ case e1000_phy_82579:
+ cap_addr = I82579_EEE_CAPABILITY;
+ lpa_addr = I82579_EEE_LP_ABILITY;
+ pcs_stat_addr = I82579_EEE_PCS_STATUS;
+ break;
+ case e1000_phy_i217:
+ cap_addr = I217_EEE_CAPABILITY;
+ lpa_addr = I217_EEE_LP_ABILITY;
+ pcs_stat_addr = I217_EEE_PCS_STATUS;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ pm_runtime_get_sync(netdev->dev.parent);
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val) {
+ pm_runtime_put_sync(netdev->dev.parent);
+ return -EBUSY;
+ }
+
+ /* EEE Capability */
+ ret_val = e1000_read_emi_reg_locked(hw, cap_addr, &phy_data);
+ if (ret_val)
+ goto release;
+ edata->supported = mmd_eee_cap_to_ethtool_sup_t(phy_data);
+
+ /* EEE Advertised */
+ edata->advertised = mmd_eee_adv_to_ethtool_adv_t(adapter->eee_advert);
+
+ /* EEE Link Partner Advertised */
+ ret_val = e1000_read_emi_reg_locked(hw, lpa_addr, &phy_data);
+ if (ret_val)
+ goto release;
+ edata->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(phy_data);
+
+ /* EEE PCS Status */
+ ret_val = e1000_read_emi_reg_locked(hw, pcs_stat_addr, &phy_data);
+ if (ret_val)
+ goto release;
+ if (hw->phy.type == e1000_phy_82579)
+ phy_data <<= 8;
+
+ /* Result of the EEE auto negotiation - there is no register that
+ * has the status of the EEE negotiation so do a best-guess based
+ * on whether Tx or Rx LPI indications have been received.
+ */
+ if (phy_data & (E1000_EEE_TX_LPI_RCVD | E1000_EEE_RX_LPI_RCVD))
+ edata->eee_active = true;
+
+ edata->eee_enabled = !hw->dev_spec.ich8lan.eee_disable;
+ edata->tx_lpi_enabled = true;
+ edata->tx_lpi_timer = er32(LPIC) >> E1000_LPIC_LPIET_SHIFT;
+
+release:
+ hw->phy.ops.release(hw);
+ if (ret_val)
+ ret_val = -ENODATA;
+
+ pm_runtime_put_sync(netdev->dev.parent);
+
+ return ret_val;
+}
+
+static int e1000e_set_eee(struct net_device *netdev, struct ethtool_eee *edata)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ struct ethtool_eee eee_curr;
+ s32 ret_val;
+
+ ret_val = e1000e_get_eee(netdev, &eee_curr);
+ if (ret_val)
+ return ret_val;
+
+ if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) {
+ e_err("Setting EEE tx-lpi is not supported\n");
+ return -EINVAL;
+ }
+
+ if (eee_curr.tx_lpi_timer != edata->tx_lpi_timer) {
+ e_err("Setting EEE Tx LPI timer is not supported\n");
+ return -EINVAL;
+ }
+
+ if (edata->advertised & ~(ADVERTISE_100_FULL | ADVERTISE_1000_FULL)) {
+ e_err("EEE advertisement supports only 100TX and/or 1000T full-duplex\n");
+ return -EINVAL;
+ }
+
+ adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised);
+
+ hw->dev_spec.ich8lan.eee_disable = !edata->eee_enabled;
+
+ pm_runtime_get_sync(netdev->dev.parent);
+
+ /* reset the link */
+ if (netif_running(netdev))
+ e1000e_reinit_locked(adapter);
+ else
+ e1000e_reset(adapter);
+
+ pm_runtime_put_sync(netdev->dev.parent);
+
+ return 0;
+}
+
+static int e1000e_get_ts_info(struct net_device *netdev,
+ struct ethtool_ts_info *info)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ ethtool_op_get_ts_info(netdev, info);
+
+ if (!(adapter->flags & FLAG_HAS_HW_TIMESTAMP))
+ return 0;
+
+ info->so_timestamping |= (SOF_TIMESTAMPING_TX_HARDWARE |
+ SOF_TIMESTAMPING_RX_HARDWARE |
+ SOF_TIMESTAMPING_RAW_HARDWARE);
+
+ 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_L4_SYNC) |
+ (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) |
+ (1 << HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
+ (1 << HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ) |
+ (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) |
+ (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) |
+ (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
+ (1 << HWTSTAMP_FILTER_ALL));
+
+ if (adapter->ptp_clock)
+ info->phc_index = ptp_clock_index(adapter->ptp_clock);
+
+ return 0;
+}
+
+static const struct ethtool_ops e1000_ethtool_ops = {
+ .get_settings = e1000_get_settings,
+ .set_settings = e1000_set_settings,
+ .get_drvinfo = e1000_get_drvinfo,
+ .get_regs_len = e1000_get_regs_len,
+ .get_regs = e1000_get_regs,
+ .get_wol = e1000_get_wol,
+ .set_wol = e1000_set_wol,
+ .get_msglevel = e1000_get_msglevel,
+ .set_msglevel = e1000_set_msglevel,
+ .nway_reset = e1000_nway_reset,
+ .get_link = ethtool_op_get_link,
+ .get_eeprom_len = e1000_get_eeprom_len,
+ .get_eeprom = e1000_get_eeprom,
+ .set_eeprom = e1000_set_eeprom,
+ .get_ringparam = e1000_get_ringparam,
+ .set_ringparam = e1000_set_ringparam,
+ .get_pauseparam = e1000_get_pauseparam,
+ .set_pauseparam = e1000_set_pauseparam,
+ .self_test = e1000_diag_test,
+ .get_strings = e1000_get_strings,
+ .set_phys_id = e1000_set_phys_id,
+ .get_ethtool_stats = e1000_get_ethtool_stats,
+ .get_sset_count = e1000e_get_sset_count,
+ .get_coalesce = e1000_get_coalesce,
+ .set_coalesce = e1000_set_coalesce,
+ .get_rxnfc = e1000_get_rxnfc,
+ .get_ts_info = e1000e_get_ts_info,
+ .get_eee = e1000e_get_eee,
+ .set_eee = e1000e_set_eee,
+};
+
+void e1000e_set_ethtool_ops(struct net_device *netdev)
+{
+ netdev->ethtool_ops = &e1000_ethtool_ops;
+}
Code Review / kvmfornfv.git / blobdiff