--- a/devices/e1000/e1000_ethtool-2.6.29-org.c Tue Jan 10 11:30:41 2012 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,1987 +0,0 @@
-/*******************************************************************************
-
- Intel PRO/1000 Linux driver
- Copyright(c) 1999 - 2006 Intel Corporation.
-
- This program is free software; you can redistribute it and/or modify it
- under the terms and conditions of the GNU General Public License,
- version 2, as published by the Free Software Foundation.
-
- This program is distributed in the hope it will be useful, but WITHOUT
- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- more details.
-
- You should have received a copy of the GNU General Public License along with
- this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
-
- 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 "e1000.h"
-#include <asm/uaccess.h>
-
-struct e1000_stats {
- char stat_string[ETH_GSTRING_LEN];
- int sizeof_stat;
- int stat_offset;
-};
-
-#define E1000_STAT(m) FIELD_SIZEOF(struct e1000_adapter, m), \
- offsetof(struct e1000_adapter, m)
-static const struct e1000_stats e1000_gstrings_stats[] = {
- { "rx_packets", E1000_STAT(stats.gprc) },
- { "tx_packets", E1000_STAT(stats.gptc) },
- { "rx_bytes", E1000_STAT(stats.gorcl) },
- { "tx_bytes", E1000_STAT(stats.gotcl) },
- { "rx_broadcast", E1000_STAT(stats.bprc) },
- { "tx_broadcast", E1000_STAT(stats.bptc) },
- { "rx_multicast", E1000_STAT(stats.mprc) },
- { "tx_multicast", E1000_STAT(stats.mptc) },
- { "rx_errors", E1000_STAT(stats.rxerrc) },
- { "tx_errors", E1000_STAT(stats.txerrc) },
- { "tx_dropped", E1000_STAT(net_stats.tx_dropped) },
- { "multicast", E1000_STAT(stats.mprc) },
- { "collisions", E1000_STAT(stats.colc) },
- { "rx_length_errors", E1000_STAT(stats.rlerrc) },
- { "rx_over_errors", E1000_STAT(net_stats.rx_over_errors) },
- { "rx_crc_errors", E1000_STAT(stats.crcerrs) },
- { "rx_frame_errors", E1000_STAT(net_stats.rx_frame_errors) },
- { "rx_no_buffer_count", E1000_STAT(stats.rnbc) },
- { "rx_missed_errors", E1000_STAT(stats.mpc) },
- { "tx_aborted_errors", E1000_STAT(stats.ecol) },
- { "tx_carrier_errors", E1000_STAT(stats.tncrs) },
- { "tx_fifo_errors", E1000_STAT(net_stats.tx_fifo_errors) },
- { "tx_heartbeat_errors", E1000_STAT(net_stats.tx_heartbeat_errors) },
- { "tx_window_errors", E1000_STAT(stats.latecol) },
- { "tx_abort_late_coll", E1000_STAT(stats.latecol) },
- { "tx_deferred_ok", E1000_STAT(stats.dc) },
- { "tx_single_coll_ok", E1000_STAT(stats.scc) },
- { "tx_multi_coll_ok", E1000_STAT(stats.mcc) },
- { "tx_timeout_count", E1000_STAT(tx_timeout_count) },
- { "tx_restart_queue", E1000_STAT(restart_queue) },
- { "rx_long_length_errors", E1000_STAT(stats.roc) },
- { "rx_short_length_errors", E1000_STAT(stats.ruc) },
- { "rx_align_errors", E1000_STAT(stats.algnerrc) },
- { "tx_tcp_seg_good", E1000_STAT(stats.tsctc) },
- { "tx_tcp_seg_failed", E1000_STAT(stats.tsctfc) },
- { "rx_flow_control_xon", E1000_STAT(stats.xonrxc) },
- { "rx_flow_control_xoff", E1000_STAT(stats.xoffrxc) },
- { "tx_flow_control_xon", E1000_STAT(stats.xontxc) },
- { "tx_flow_control_xoff", E1000_STAT(stats.xofftxc) },
- { "rx_long_byte_count", E1000_STAT(stats.gorcl) },
- { "rx_csum_offload_good", E1000_STAT(hw_csum_good) },
- { "rx_csum_offload_errors", E1000_STAT(hw_csum_err) },
- { "rx_header_split", E1000_STAT(rx_hdr_split) },
- { "alloc_rx_buff_failed", E1000_STAT(alloc_rx_buff_failed) },
- { "tx_smbus", E1000_STAT(stats.mgptc) },
- { "rx_smbus", E1000_STAT(stats.mgprc) },
- { "dropped_smbus", E1000_STAT(stats.mgpdc) },
-};
-
-#define E1000_QUEUE_STATS_LEN 0
-#define E1000_GLOBAL_STATS_LEN ARRAY_SIZE(e1000_gstrings_stats)
-#define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN + E1000_QUEUE_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;
-
- if (hw->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->autoneg == 1) {
- ecmd->advertising |= ADVERTISED_Autoneg;
- /* the e1000 autoneg seems to match ethtool nicely */
- ecmd->advertising |= hw->autoneg_advertised;
- }
-
- ecmd->port = PORT_TP;
- ecmd->phy_address = hw->phy_addr;
-
- if (hw->mac_type == e1000_82543)
- ecmd->transceiver = XCVR_EXTERNAL;
- else
- 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;
-
- if (hw->mac_type >= e1000_82545)
- ecmd->transceiver = XCVR_INTERNAL;
- else
- ecmd->transceiver = XCVR_EXTERNAL;
- }
-
- if (er32(STATUS) & E1000_STATUS_LU) {
-
- e1000_get_speed_and_duplex(hw, &adapter->link_speed,
- &adapter->link_duplex);
- ecmd->speed = adapter->link_speed;
-
- /* unfortunatly FULL_DUPLEX != DUPLEX_FULL
- * and HALF_DUPLEX != DUPLEX_HALF */
-
- if (adapter->link_duplex == FULL_DUPLEX)
- ecmd->duplex = DUPLEX_FULL;
- else
- ecmd->duplex = DUPLEX_HALF;
- } else {
- ecmd->speed = -1;
- ecmd->duplex = -1;
- }
-
- ecmd->autoneg = ((hw->media_type == e1000_media_type_fiber) ||
- hw->autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
- return 0;
-}
-
-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;
-
- /* When SoL/IDER sessions are active, autoneg/speed/duplex
- * cannot be changed */
- if (e1000_check_phy_reset_block(hw)) {
- DPRINTK(DRV, ERR, "Cannot change link characteristics "
- "when SoL/IDER is active.\n");
- return -EINVAL;
- }
-
- while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
- msleep(1);
-
- if (ecmd->autoneg == AUTONEG_ENABLE) {
- hw->autoneg = 1;
- if (hw->media_type == e1000_media_type_fiber)
- hw->autoneg_advertised = ADVERTISED_1000baseT_Full |
- ADVERTISED_FIBRE |
- ADVERTISED_Autoneg;
- else
- hw->autoneg_advertised = ecmd->advertising |
- ADVERTISED_TP |
- ADVERTISED_Autoneg;
- ecmd->advertising = hw->autoneg_advertised;
- } else
- if (e1000_set_spd_dplx(adapter, ecmd->speed + ecmd->duplex)) {
- clear_bit(__E1000_RESETTING, &adapter->flags);
- return -EINVAL;
- }
-
- /* reset the link */
-
- if (netif_running(adapter->netdev)) {
- e1000_down(adapter);
- e1000_up(adapter);
- } else
- e1000_reset(adapter);
-
- clear_bit(__E1000_RESETTING, &adapter->flags);
- return 0;
-}
-
-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 == E1000_FC_RX_PAUSE)
- pause->rx_pause = 1;
- else if (hw->fc == E1000_FC_TX_PAUSE)
- pause->tx_pause = 1;
- else if (hw->fc == 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->flags))
- msleep(1);
-
- if (pause->rx_pause && pause->tx_pause)
- hw->fc = E1000_FC_FULL;
- else if (pause->rx_pause && !pause->tx_pause)
- hw->fc = E1000_FC_RX_PAUSE;
- else if (!pause->rx_pause && pause->tx_pause)
- hw->fc = E1000_FC_TX_PAUSE;
- else if (!pause->rx_pause && !pause->tx_pause)
- hw->fc = E1000_FC_NONE;
-
- hw->original_fc = hw->fc;
-
- if (adapter->fc_autoneg == AUTONEG_ENABLE) {
- if (netif_running(adapter->netdev)) {
- e1000_down(adapter);
- e1000_up(adapter);
- } else
- e1000_reset(adapter);
- } else
- retval = ((hw->media_type == e1000_media_type_fiber) ?
- e1000_setup_link(hw) : e1000_force_mac_fc(hw));
-
- clear_bit(__E1000_RESETTING, &adapter->flags);
- return retval;
-}
-
-static u32 e1000_get_rx_csum(struct net_device *netdev)
-{
- struct e1000_adapter *adapter = netdev_priv(netdev);
- return adapter->rx_csum;
-}
-
-static int e1000_set_rx_csum(struct net_device *netdev, u32 data)
-{
- struct e1000_adapter *adapter = netdev_priv(netdev);
- adapter->rx_csum = data;
-
- if (netif_running(netdev))
- e1000_reinit_locked(adapter);
- else
- e1000_reset(adapter);
- return 0;
-}
-
-static u32 e1000_get_tx_csum(struct net_device *netdev)
-{
- return (netdev->features & NETIF_F_HW_CSUM) != 0;
-}
-
-static int e1000_set_tx_csum(struct net_device *netdev, u32 data)
-{
- struct e1000_adapter *adapter = netdev_priv(netdev);
- struct e1000_hw *hw = &adapter->hw;
-
- if (hw->mac_type < e1000_82543) {
- if (!data)
- return -EINVAL;
- return 0;
- }
-
- if (data)
- netdev->features |= NETIF_F_HW_CSUM;
- else
- netdev->features &= ~NETIF_F_HW_CSUM;
-
- return 0;
-}
-
-static int e1000_set_tso(struct net_device *netdev, u32 data)
-{
- struct e1000_adapter *adapter = netdev_priv(netdev);
- struct e1000_hw *hw = &adapter->hw;
-
- if ((hw->mac_type < e1000_82544) ||
- (hw->mac_type == e1000_82547))
- return data ? -EINVAL : 0;
-
- if (data)
- netdev->features |= NETIF_F_TSO;
- else
- netdev->features &= ~NETIF_F_TSO;
-
- if (data && (adapter->hw.mac_type > e1000_82547_rev_2))
- netdev->features |= NETIF_F_TSO6;
- else
- netdev->features &= ~NETIF_F_TSO6;
-
- DPRINTK(PROBE, INFO, "TSO is %s\n", data ? "Enabled" : "Disabled");
- adapter->tso_force = true;
- return 0;
-}
-
-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 *netdev)
-{
-#define E1000_REGS_LEN 32
- 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;
-
- memset(p, 0, E1000_REGS_LEN * sizeof(u32));
-
- regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id;
-
- regs_buff[0] = er32(CTRL);
- regs_buff[1] = er32(STATUS);
-
- regs_buff[2] = er32(RCTL);
- regs_buff[3] = er32(RDLEN);
- regs_buff[4] = er32(RDH);
- regs_buff[5] = er32(RDT);
- regs_buff[6] = er32(RDTR);
-
- regs_buff[7] = er32(TCTL);
- regs_buff[8] = er32(TDLEN);
- regs_buff[9] = er32(TDH);
- regs_buff[10] = er32(TDT);
- regs_buff[11] = er32(TIDV);
-
- regs_buff[12] = hw->phy_type; /* PHY type (IGP=1, M88=0) */
- if (hw->phy_type == e1000_phy_igp) {
- e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
- IGP01E1000_PHY_AGC_A);
- e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_A &
- IGP01E1000_PHY_PAGE_SELECT, &phy_data);
- regs_buff[13] = (u32)phy_data; /* cable length */
- e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
- IGP01E1000_PHY_AGC_B);
- e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_B &
- IGP01E1000_PHY_PAGE_SELECT, &phy_data);
- regs_buff[14] = (u32)phy_data; /* cable length */
- e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
- IGP01E1000_PHY_AGC_C);
- e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_C &
- IGP01E1000_PHY_PAGE_SELECT, &phy_data);
- regs_buff[15] = (u32)phy_data; /* cable length */
- e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
- IGP01E1000_PHY_AGC_D);
- e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_D &
- IGP01E1000_PHY_PAGE_SELECT, &phy_data);
- regs_buff[16] = (u32)phy_data; /* cable length */
- regs_buff[17] = 0; /* extended 10bt distance (not needed) */
- e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0);
- e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS &
- IGP01E1000_PHY_PAGE_SELECT, &phy_data);
- regs_buff[18] = (u32)phy_data; /* cable polarity */
- e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
- IGP01E1000_PHY_PCS_INIT_REG);
- e1000_read_phy_reg(hw, IGP01E1000_PHY_PCS_INIT_REG &
- IGP01E1000_PHY_PAGE_SELECT, &phy_data);
- regs_buff[19] = (u32)phy_data; /* cable polarity */
- regs_buff[20] = 0; /* polarity correction enabled (always) */
- regs_buff[22] = 0; /* phy receive errors (unavailable) */
- regs_buff[23] = regs_buff[18]; /* mdix mode */
- e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0);
- } else {
- e1000_read_phy_reg(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) */
- e1000_read_phy_reg(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] = adapter->phy_stats.idle_errors; /* phy idle errors */
- e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data);
- regs_buff[24] = (u32)phy_data; /* phy local receiver status */
- regs_buff[25] = regs_buff[24]; /* phy remote receiver status */
- if (hw->mac_type >= e1000_82540 &&
- hw->mac_type < e1000_82571 &&
- hw->media_type == e1000_media_type_copper) {
- regs_buff[26] = er32(MANC);
- }
-}
-
-static int e1000_get_eeprom_len(struct net_device *netdev)
-{
- struct e1000_adapter *adapter = netdev_priv(netdev);
- struct e1000_hw *hw = &adapter->hw;
-
- return hw->eeprom.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, last_word;
- int ret_val = 0;
- u16 i;
-
- if (eeprom->len == 0)
- return -EINVAL;
-
- eeprom->magic = hw->vendor_id | (hw->device_id << 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;
-
- if (hw->eeprom.type == e1000_eeprom_spi)
- ret_val = e1000_read_eeprom(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_eeprom(hw, first_word + i, 1,
- &eeprom_buff[i]);
- if (ret_val)
- break;
- }
- }
-
- /* 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, first_word, last_word, ret_val = 0;
- u16 i;
-
- if (eeprom->len == 0)
- return -EOPNOTSUPP;
-
- if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
- return -EFAULT;
-
- max_len = hw->eeprom.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;
-
- 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_eeprom(hw, first_word, 1,
- &eeprom_buff[0]);
- ptr++;
- }
- if (((eeprom->offset + eeprom->len) & 1) && (ret_val == 0)) {
- /* need read/modify/write of last changed EEPROM word */
- /* only the first byte of the word is being modified */
- ret_val = e1000_read_eeprom(hw, last_word, 1,
- &eeprom_buff[last_word - first_word]);
- }
-
- /* 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++)
- eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]);
-
- ret_val = e1000_write_eeprom(hw, first_word,
- last_word - first_word + 1, eeprom_buff);
-
- /* Update the checksum over the first part of the EEPROM if needed
- * and flush shadow RAM for 82573 conrollers */
- if ((ret_val == 0) && ((first_word <= EEPROM_CHECKSUM_REG) ||
- (hw->mac_type == e1000_82573)))
- e1000_update_eeprom_checksum(hw);
-
- 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);
- struct e1000_hw *hw = &adapter->hw;
- char firmware_version[32];
- u16 eeprom_data;
-
- strncpy(drvinfo->driver, e1000_driver_name, 32);
- strncpy(drvinfo->version, e1000_driver_version, 32);
-
- /* EEPROM image version # is reported as firmware version # for
- * 8257{1|2|3} controllers */
- e1000_read_eeprom(hw, 5, 1, &eeprom_data);
- switch (hw->mac_type) {
- case e1000_82571:
- case e1000_82572:
- case e1000_82573:
- case e1000_80003es2lan:
- case e1000_ich8lan:
- sprintf(firmware_version, "%d.%d-%d",
- (eeprom_data & 0xF000) >> 12,
- (eeprom_data & 0x0FF0) >> 4,
- eeprom_data & 0x000F);
- break;
- default:
- sprintf(firmware_version, "N/A");
- }
-
- strncpy(drvinfo->fw_version, firmware_version, 32);
- strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32);
- 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);
- struct e1000_hw *hw = &adapter->hw;
- e1000_mac_type mac_type = hw->mac_type;
- struct e1000_tx_ring *txdr = adapter->tx_ring;
- struct e1000_rx_ring *rxdr = adapter->rx_ring;
-
- ring->rx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_RXD :
- E1000_MAX_82544_RXD;
- ring->tx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_TXD :
- E1000_MAX_82544_TXD;
- ring->rx_mini_max_pending = 0;
- ring->rx_jumbo_max_pending = 0;
- ring->rx_pending = rxdr->count;
- ring->tx_pending = txdr->count;
- ring->rx_mini_pending = 0;
- ring->rx_jumbo_pending = 0;
-}
-
-static int e1000_set_ringparam(struct net_device *netdev,
- struct ethtool_ringparam *ring)
-{
- struct e1000_adapter *adapter = netdev_priv(netdev);
- struct e1000_hw *hw = &adapter->hw;
- e1000_mac_type mac_type = hw->mac_type;
- struct e1000_tx_ring *txdr, *tx_old;
- struct e1000_rx_ring *rxdr, *rx_old;
- int i, err;
-
- if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
- return -EINVAL;
-
- while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
- msleep(1);
-
- if (netif_running(adapter->netdev))
- e1000_down(adapter);
-
- tx_old = adapter->tx_ring;
- rx_old = adapter->rx_ring;
-
- err = -ENOMEM;
- txdr = kcalloc(adapter->num_tx_queues, sizeof(struct e1000_tx_ring), GFP_KERNEL);
- if (!txdr)
- goto err_alloc_tx;
-
- rxdr = kcalloc(adapter->num_rx_queues, sizeof(struct e1000_rx_ring), GFP_KERNEL);
- if (!rxdr)
- goto err_alloc_rx;
-
- adapter->tx_ring = txdr;
- adapter->rx_ring = rxdr;
-
- rxdr->count = max(ring->rx_pending,(u32)E1000_MIN_RXD);
- rxdr->count = min(rxdr->count,(u32)(mac_type < e1000_82544 ?
- E1000_MAX_RXD : E1000_MAX_82544_RXD));
- rxdr->count = ALIGN(rxdr->count, REQ_RX_DESCRIPTOR_MULTIPLE);
-
- txdr->count = max(ring->tx_pending,(u32)E1000_MIN_TXD);
- txdr->count = min(txdr->count,(u32)(mac_type < e1000_82544 ?
- E1000_MAX_TXD : E1000_MAX_82544_TXD));
- txdr->count = ALIGN(txdr->count, REQ_TX_DESCRIPTOR_MULTIPLE);
-
- for (i = 0; i < adapter->num_tx_queues; i++)
- txdr[i].count = txdr->count;
- for (i = 0; i < adapter->num_rx_queues; i++)
- rxdr[i].count = rxdr->count;
-
- if (netif_running(adapter->netdev)) {
- /* Try to get new resources before deleting old */
- err = e1000_setup_all_rx_resources(adapter);
- if (err)
- goto err_setup_rx;
- err = e1000_setup_all_tx_resources(adapter);
- if (err)
- goto err_setup_tx;
-
- /* save the new, restore the old in order to free it,
- * then restore the new back again */
-
- adapter->rx_ring = rx_old;
- adapter->tx_ring = tx_old;
- e1000_free_all_rx_resources(adapter);
- e1000_free_all_tx_resources(adapter);
- kfree(tx_old);
- kfree(rx_old);
- adapter->rx_ring = rxdr;
- adapter->tx_ring = txdr;
- err = e1000_up(adapter);
- if (err)
- goto err_setup;
- }
-
- clear_bit(__E1000_RESETTING, &adapter->flags);
- return 0;
-err_setup_tx:
- e1000_free_all_rx_resources(adapter);
-err_setup_rx:
- adapter->rx_ring = rx_old;
- adapter->tx_ring = tx_old;
- kfree(rxdr);
-err_alloc_rx:
- kfree(txdr);
-err_alloc_tx:
- e1000_up(adapter);
-err_setup:
- clear_bit(__E1000_RESETTING, &adapter->flags);
- return err;
-}
-
-static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data, int reg,
- u32 mask, u32 write)
-{
- struct e1000_hw *hw = &adapter->hw;
- static const u32 test[] =
- {0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF};
- u8 __iomem *address = hw->hw_addr + reg;
- u32 read;
- int i;
-
- for (i = 0; i < ARRAY_SIZE(test); i++) {
- writel(write & test[i], address);
- read = readl(address);
- if (read != (write & test[i] & mask)) {
- DPRINTK(DRV, ERR, "pattern test reg %04X failed: "
- "got 0x%08X expected 0x%08X\n",
- reg, read, (write & test[i] & 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)
-{
- struct e1000_hw *hw = &adapter->hw;
- u8 __iomem *address = hw->hw_addr + reg;
- u32 read;
-
- writel(write & mask, address);
- read = readl(address);
- if ((read & mask) != (write & mask)) {
- DPRINTK(DRV, ERR, "set/check reg %04X test failed: "
- "got 0x%08X expected 0x%08X\n",
- reg, (read & mask), (write & mask));
- *data = reg;
- return true;
- }
- return false;
-}
-
-#define REG_PATTERN_TEST(reg, mask, write) \
- do { \
- if (reg_pattern_test(adapter, data, \
- (hw->mac_type >= e1000_82543) \
- ? E1000_##reg : E1000_82542_##reg, \
- mask, write)) \
- return 1; \
- } while (0)
-
-#define REG_SET_AND_CHECK(reg, mask, write) \
- do { \
- if (reg_set_and_check(adapter, data, \
- (hw->mac_type >= e1000_82543) \
- ? E1000_##reg : E1000_82542_##reg, \
- mask, write)) \
- return 1; \
- } while (0)
-
-static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
-{
- u32 value, before, after;
- u32 i, toggle;
- struct e1000_hw *hw = &adapter->hw;
-
- /* The status register is Read Only, so a write should fail.
- * Some bits that get toggled are ignored.
- */
- switch (hw->mac_type) {
- /* there are several bits on newer hardware that are r/w */
- case e1000_82571:
- case e1000_82572:
- case e1000_80003es2lan:
- toggle = 0x7FFFF3FF;
- break;
- case e1000_82573:
- case e1000_ich8lan:
- toggle = 0x7FFFF033;
- break;
- default:
- toggle = 0xFFFFF833;
- break;
- }
-
- before = er32(STATUS);
- value = (er32(STATUS) & toggle);
- ew32(STATUS, toggle);
- after = er32(STATUS) & toggle;
- if (value != after) {
- DPRINTK(DRV, 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 (hw->mac_type != e1000_ich8lan) {
- REG_PATTERN_TEST(FCAL, 0xFFFFFFFF, 0xFFFFFFFF);
- REG_PATTERN_TEST(FCAH, 0x0000FFFF, 0xFFFFFFFF);
- REG_PATTERN_TEST(FCT, 0x0000FFFF, 0xFFFFFFFF);
- REG_PATTERN_TEST(VET, 0x0000FFFF, 0xFFFFFFFF);
- }
-
- REG_PATTERN_TEST(RDTR, 0x0000FFFF, 0xFFFFFFFF);
- REG_PATTERN_TEST(RDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
- REG_PATTERN_TEST(RDLEN, 0x000FFF80, 0x000FFFFF);
- REG_PATTERN_TEST(RDH, 0x0000FFFF, 0x0000FFFF);
- REG_PATTERN_TEST(RDT, 0x0000FFFF, 0x0000FFFF);
- REG_PATTERN_TEST(FCRTH, 0x0000FFF8, 0x0000FFF8);
- REG_PATTERN_TEST(FCTTV, 0x0000FFFF, 0x0000FFFF);
- REG_PATTERN_TEST(TIPG, 0x3FFFFFFF, 0x3FFFFFFF);
- REG_PATTERN_TEST(TDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
- REG_PATTERN_TEST(TDLEN, 0x000FFF80, 0x000FFFFF);
-
- REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x00000000);
-
- before = (hw->mac_type == e1000_ich8lan ?
- 0x06C3B33E : 0x06DFB3FE);
- REG_SET_AND_CHECK(RCTL, before, 0x003FFFFB);
- REG_SET_AND_CHECK(TCTL, 0xFFFFFFFF, 0x00000000);
-
- if (hw->mac_type >= e1000_82543) {
-
- REG_SET_AND_CHECK(RCTL, before, 0xFFFFFFFF);
- REG_PATTERN_TEST(RDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
- if (hw->mac_type != e1000_ich8lan)
- REG_PATTERN_TEST(TXCW, 0xC000FFFF, 0x0000FFFF);
- REG_PATTERN_TEST(TDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
- REG_PATTERN_TEST(TIDV, 0x0000FFFF, 0x0000FFFF);
- value = (hw->mac_type == e1000_ich8lan ?
- E1000_RAR_ENTRIES_ICH8LAN : E1000_RAR_ENTRIES);
- for (i = 0; i < value; i++) {
- REG_PATTERN_TEST(RA + (((i << 1) + 1) << 2), 0x8003FFFF,
- 0xFFFFFFFF);
- }
-
- } else {
-
- REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x01FFFFFF);
- REG_PATTERN_TEST(RDBAL, 0xFFFFF000, 0xFFFFFFFF);
- REG_PATTERN_TEST(TXCW, 0x0000FFFF, 0x0000FFFF);
- REG_PATTERN_TEST(TDBAL, 0xFFFFF000, 0xFFFFFFFF);
-
- }
-
- value = (hw->mac_type == e1000_ich8lan ?
- E1000_MC_TBL_SIZE_ICH8LAN : E1000_MC_TBL_SIZE);
- for (i = 0; i < value; i++)
- REG_PATTERN_TEST(MTA + (i << 2), 0xFFFFFFFF, 0xFFFFFFFF);
-
- *data = 0;
- return 0;
-}
-
-static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data)
-{
- struct e1000_hw *hw = &adapter->hw;
- u16 temp;
- u16 checksum = 0;
- u16 i;
-
- *data = 0;
- /* Read and add up the contents of the EEPROM */
- for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) {
- if ((e1000_read_eeprom(hw, i, 1, &temp)) < 0) {
- *data = 1;
- break;
- }
- checksum += temp;
- }
-
- /* If Checksum is not Correct return error else test passed */
- if ((checksum != (u16)EEPROM_SUM) && !(*data))
- *data = 2;
-
- return *data;
-}
-
-static irqreturn_t e1000_test_intr(int 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;
- u32 mask, i = 0;
- bool shared_int = true;
- u32 irq = adapter->pdev->irq;
- struct e1000_hw *hw = &adapter->hw;
-
- *data = 0;
-
- /* NOTE: we don't test MSI interrupts here, yet */
- /* Hook up test interrupt handler just for this test */
- if (!request_irq(irq, &e1000_test_intr, IRQF_PROBE_SHARED, netdev->name,
- netdev))
- shared_int = false;
- else if (request_irq(irq, &e1000_test_intr, IRQF_SHARED,
- netdev->name, netdev)) {
- *data = 1;
- return -1;
- }
- DPRINTK(HW, INFO, "testing %s interrupt\n",
- (shared_int ? "shared" : "unshared"));
-
- /* Disable all the interrupts */
- ew32(IMC, 0xFFFFFFFF);
- msleep(10);
-
- /* Test each interrupt */
- for (; i < 10; i++) {
-
- if (hw->mac_type == e1000_ich8lan && i == 8)
- continue;
-
- /* Interrupt to test */
- mask = 1 << i;
-
- 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);
- msleep(10);
-
- 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);
- msleep(10);
-
- 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);
- msleep(10);
-
- if (adapter->test_icr) {
- *data = 5;
- break;
- }
- }
- }
-
- /* Disable all the interrupts */
- ew32(IMC, 0xFFFFFFFF);
- msleep(10);
-
- /* Unhook test interrupt handler */
- free_irq(irq, netdev);
-
- return *data;
-}
-
-static void e1000_free_desc_rings(struct e1000_adapter *adapter)
-{
- struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
- struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
- struct pci_dev *pdev = adapter->pdev;
- int i;
-
- if (txdr->desc && txdr->buffer_info) {
- for (i = 0; i < txdr->count; i++) {
- if (txdr->buffer_info[i].dma)
- pci_unmap_single(pdev, txdr->buffer_info[i].dma,
- txdr->buffer_info[i].length,
- PCI_DMA_TODEVICE);
- if (txdr->buffer_info[i].skb)
- dev_kfree_skb(txdr->buffer_info[i].skb);
- }
- }
-
- if (rxdr->desc && rxdr->buffer_info) {
- for (i = 0; i < rxdr->count; i++) {
- if (rxdr->buffer_info[i].dma)
- pci_unmap_single(pdev, rxdr->buffer_info[i].dma,
- rxdr->buffer_info[i].length,
- PCI_DMA_FROMDEVICE);
- if (rxdr->buffer_info[i].skb)
- dev_kfree_skb(rxdr->buffer_info[i].skb);
- }
- }
-
- if (txdr->desc) {
- pci_free_consistent(pdev, txdr->size, txdr->desc, txdr->dma);
- txdr->desc = NULL;
- }
- if (rxdr->desc) {
- pci_free_consistent(pdev, rxdr->size, rxdr->desc, rxdr->dma);
- rxdr->desc = NULL;
- }
-
- kfree(txdr->buffer_info);
- txdr->buffer_info = NULL;
- kfree(rxdr->buffer_info);
- rxdr->buffer_info = NULL;
-
- return;
-}
-
-static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
-{
- struct e1000_hw *hw = &adapter->hw;
- struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
- struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
- struct pci_dev *pdev = adapter->pdev;
- u32 rctl;
- int i, ret_val;
-
- /* Setup Tx descriptor ring and Tx buffers */
-
- if (!txdr->count)
- txdr->count = E1000_DEFAULT_TXD;
-
- txdr->buffer_info = kcalloc(txdr->count, sizeof(struct e1000_buffer),
- GFP_KERNEL);
- if (!txdr->buffer_info) {
- ret_val = 1;
- goto err_nomem;
- }
-
- txdr->size = txdr->count * sizeof(struct e1000_tx_desc);
- txdr->size = ALIGN(txdr->size, 4096);
- txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma);
- if (!txdr->desc) {
- ret_val = 2;
- goto err_nomem;
- }
- memset(txdr->desc, 0, txdr->size);
- txdr->next_to_use = txdr->next_to_clean = 0;
-
- ew32(TDBAL, ((u64)txdr->dma & 0x00000000FFFFFFFF));
- ew32(TDBAH, ((u64)txdr->dma >> 32));
- ew32(TDLEN, txdr->count * sizeof(struct e1000_tx_desc));
- ew32(TDH, 0);
- ew32(TDT, 0);
- ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN |
- E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT |
- E1000_FDX_COLLISION_DISTANCE << E1000_COLD_SHIFT);
-
- for (i = 0; i < txdr->count; i++) {
- struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*txdr, i);
- struct sk_buff *skb;
- unsigned int size = 1024;
-
- skb = alloc_skb(size, GFP_KERNEL);
- if (!skb) {
- ret_val = 3;
- goto err_nomem;
- }
- skb_put(skb, size);
- txdr->buffer_info[i].skb = skb;
- txdr->buffer_info[i].length = skb->len;
- txdr->buffer_info[i].dma =
- pci_map_single(pdev, skb->data, skb->len,
- PCI_DMA_TODEVICE);
- tx_desc->buffer_addr = cpu_to_le64(txdr->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_RPS);
- tx_desc->upper.data = 0;
- }
-
- /* Setup Rx descriptor ring and Rx buffers */
-
- if (!rxdr->count)
- rxdr->count = E1000_DEFAULT_RXD;
-
- rxdr->buffer_info = kcalloc(rxdr->count, sizeof(struct e1000_buffer),
- GFP_KERNEL);
- if (!rxdr->buffer_info) {
- ret_val = 4;
- goto err_nomem;
- }
-
- rxdr->size = rxdr->count * sizeof(struct e1000_rx_desc);
- rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma);
- if (!rxdr->desc) {
- ret_val = 5;
- goto err_nomem;
- }
- memset(rxdr->desc, 0, rxdr->size);
- rxdr->next_to_use = rxdr->next_to_clean = 0;
-
- rctl = er32(RCTL);
- ew32(RCTL, rctl & ~E1000_RCTL_EN);
- ew32(RDBAL, ((u64)rxdr->dma & 0xFFFFFFFF));
- ew32(RDBAH, ((u64)rxdr->dma >> 32));
- ew32(RDLEN, rxdr->size);
- ew32(RDH, 0);
- ew32(RDT, 0);
- rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
- E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
- (hw->mc_filter_type << E1000_RCTL_MO_SHIFT);
- ew32(RCTL, rctl);
-
- for (i = 0; i < rxdr->count; i++) {
- struct e1000_rx_desc *rx_desc = E1000_RX_DESC(*rxdr, i);
- struct sk_buff *skb;
-
- skb = alloc_skb(E1000_RXBUFFER_2048 + NET_IP_ALIGN, GFP_KERNEL);
- if (!skb) {
- ret_val = 6;
- goto err_nomem;
- }
- skb_reserve(skb, NET_IP_ALIGN);
- rxdr->buffer_info[i].skb = skb;
- rxdr->buffer_info[i].length = E1000_RXBUFFER_2048;
- rxdr->buffer_info[i].dma =
- pci_map_single(pdev, skb->data, E1000_RXBUFFER_2048,
- PCI_DMA_FROMDEVICE);
- rx_desc->buffer_addr = cpu_to_le64(rxdr->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)
-{
- struct e1000_hw *hw = &adapter->hw;
-
- /* Write out to PHY registers 29 and 30 to disable the Receiver. */
- e1000_write_phy_reg(hw, 29, 0x001F);
- e1000_write_phy_reg(hw, 30, 0x8FFC);
- e1000_write_phy_reg(hw, 29, 0x001A);
- e1000_write_phy_reg(hw, 30, 0x8FF0);
-}
-
-static void e1000_phy_reset_clk_and_crs(struct e1000_adapter *adapter)
-{
- struct e1000_hw *hw = &adapter->hw;
- u16 phy_reg;
-
- /* Because we reset the PHY above, we need to re-force TX_CLK in the
- * Extended PHY Specific Control Register to 25MHz clock. This
- * value defaults back to a 2.5MHz clock when the PHY is reset.
- */
- e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg);
- phy_reg |= M88E1000_EPSCR_TX_CLK_25;
- e1000_write_phy_reg(hw,
- M88E1000_EXT_PHY_SPEC_CTRL, phy_reg);
-
- /* In addition, because of the s/w reset above, we need to enable
- * CRS on TX. This must be set for both full and half duplex
- * operation.
- */
- e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_reg);
- phy_reg |= M88E1000_PSCR_ASSERT_CRS_ON_TX;
- e1000_write_phy_reg(hw,
- M88E1000_PHY_SPEC_CTRL, phy_reg);
-}
-
-static int e1000_nonintegrated_phy_loopback(struct e1000_adapter *adapter)
-{
- struct e1000_hw *hw = &adapter->hw;
- u32 ctrl_reg;
- u16 phy_reg;
-
- /* Setup the Device Control Register for PHY loopback test. */
-
- ctrl_reg = er32(CTRL);
- ctrl_reg |= (E1000_CTRL_ILOS | /* Invert Loss-Of-Signal */
- 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 */
-
- ew32(CTRL, ctrl_reg);
-
- /* Read the PHY Specific Control Register (0x10) */
- e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_reg);
-
- /* Clear Auto-Crossover bits in PHY Specific Control Register
- * (bits 6:5).
- */
- phy_reg &= ~M88E1000_PSCR_AUTO_X_MODE;
- e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_reg);
-
- /* Perform software reset on the PHY */
- e1000_phy_reset(hw);
-
- /* Have to setup TX_CLK and TX_CRS after software reset */
- e1000_phy_reset_clk_and_crs(adapter);
-
- e1000_write_phy_reg(hw, PHY_CTRL, 0x8100);
-
- /* Wait for reset to complete. */
- udelay(500);
-
- /* Have to setup TX_CLK and TX_CRS after software reset */
- e1000_phy_reset_clk_and_crs(adapter);
-
- /* Write out to PHY registers 29 and 30 to disable the Receiver. */
- e1000_phy_disable_receiver(adapter);
-
- /* Set the loopback bit in the PHY control register. */
- e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg);
- phy_reg |= MII_CR_LOOPBACK;
- e1000_write_phy_reg(hw, PHY_CTRL, phy_reg);
-
- /* Setup TX_CLK and TX_CRS one more time. */
- e1000_phy_reset_clk_and_crs(adapter);
-
- /* Check Phy Configuration */
- e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg);
- if (phy_reg != 0x4100)
- return 9;
-
- e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg);
- if (phy_reg != 0x0070)
- return 10;
-
- e1000_read_phy_reg(hw, 29, &phy_reg);
- if (phy_reg != 0x001A)
- return 11;
-
- return 0;
-}
-
-static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
-{
- struct e1000_hw *hw = &adapter->hw;
- u32 ctrl_reg = 0;
- u32 stat_reg = 0;
-
- hw->autoneg = false;
-
- if (hw->phy_type == e1000_phy_m88) {
- /* Auto-MDI/MDIX Off */
- e1000_write_phy_reg(hw,
- M88E1000_PHY_SPEC_CTRL, 0x0808);
- /* reset to update Auto-MDI/MDIX */
- e1000_write_phy_reg(hw, PHY_CTRL, 0x9140);
- /* autoneg off */
- e1000_write_phy_reg(hw, PHY_CTRL, 0x8140);
- } else if (hw->phy_type == e1000_phy_gg82563)
- e1000_write_phy_reg(hw,
- GG82563_PHY_KMRN_MODE_CTRL,
- 0x1CC);
-
- ctrl_reg = er32(CTRL);
-
- if (hw->phy_type == e1000_phy_ife) {
- /* force 100, set loopback */
- e1000_write_phy_reg(hw, PHY_CTRL, 0x6100);
-
- /* Now set up the MAC to the same speed/duplex as the PHY. */
- 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 */
- } else {
- /* force 1000, set loopback */
- e1000_write_phy_reg(hw, PHY_CTRL, 0x4140);
-
- /* 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 (hw->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 is half
- * duplex link is detected. */
- stat_reg = er32(STATUS);
- if ((stat_reg & 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);
-
- udelay(500);
-
- return 0;
-}
-
-static int e1000_set_phy_loopback(struct e1000_adapter *adapter)
-{
- struct e1000_hw *hw = &adapter->hw;
- u16 phy_reg = 0;
- u16 count = 0;
-
- switch (hw->mac_type) {
- case e1000_82543:
- if (hw->media_type == e1000_media_type_copper) {
- /* Attempt to setup Loopback mode on Non-integrated PHY.
- * Some PHY registers get corrupted at random, so
- * attempt this 10 times.
- */
- while (e1000_nonintegrated_phy_loopback(adapter) &&
- count++ < 10);
- if (count < 11)
- return 0;
- }
- break;
-
- case e1000_82544:
- case e1000_82540:
- case e1000_82545:
- case e1000_82545_rev_3:
- case e1000_82546:
- case e1000_82546_rev_3:
- case e1000_82541:
- case e1000_82541_rev_2:
- case e1000_82547:
- case e1000_82547_rev_2:
- case e1000_82571:
- case e1000_82572:
- case e1000_82573:
- case e1000_80003es2lan:
- case e1000_ich8lan:
- return e1000_integrated_phy_loopback(adapter);
- break;
-
- default:
- /* Default PHY loopback work is to read the MII
- * control register and assert bit 14 (loopback mode).
- */
- e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg);
- phy_reg |= MII_CR_LOOPBACK;
- e1000_write_phy_reg(hw, PHY_CTRL, phy_reg);
- return 0;
- break;
- }
-
- return 8;
-}
-
-static int e1000_setup_loopback_test(struct e1000_adapter *adapter)
-{
- struct e1000_hw *hw = &adapter->hw;
- u32 rctl;
-
- if (hw->media_type == e1000_media_type_fiber ||
- hw->media_type == e1000_media_type_internal_serdes) {
- switch (hw->mac_type) {
- case e1000_82545:
- case e1000_82546:
- case e1000_82545_rev_3:
- case e1000_82546_rev_3:
- return e1000_set_phy_loopback(adapter);
- break;
- case e1000_82571:
- case e1000_82572:
-#define E1000_SERDES_LB_ON 0x410
- e1000_set_phy_loopback(adapter);
- ew32(SCTL, E1000_SERDES_LB_ON);
- msleep(10);
- return 0;
- break;
- default:
- rctl = er32(RCTL);
- rctl |= E1000_RCTL_LBM_TCVR;
- ew32(RCTL, rctl);
- return 0;
- }
- } else if (hw->media_type == e1000_media_type_copper)
- return e1000_set_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_82571:
- case e1000_82572:
- if (hw->media_type == e1000_media_type_fiber ||
- hw->media_type == e1000_media_type_internal_serdes) {
-#define E1000_SERDES_LB_OFF 0x400
- ew32(SCTL, E1000_SERDES_LB_OFF);
- msleep(10);
- break;
- }
- /* Fall Through */
- case e1000_82545:
- case e1000_82546:
- case e1000_82545_rev_3:
- case e1000_82546_rev_3:
- default:
- hw->autoneg = true;
- if (hw->phy_type == e1000_phy_gg82563)
- e1000_write_phy_reg(hw,
- GG82563_PHY_KMRN_MODE_CTRL,
- 0x180);
- e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg);
- if (phy_reg & MII_CR_LOOPBACK) {
- phy_reg &= ~MII_CR_LOOPBACK;
- e1000_write_phy_reg(hw, PHY_CTRL, phy_reg);
- e1000_phy_reset(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_hw *hw = &adapter->hw;
- struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
- struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
- struct pci_dev *pdev = adapter->pdev;
- int i, j, k, l, lc, good_cnt, ret_val=0;
- unsigned long time;
-
- ew32(RDT, rxdr->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 (rxdr->count <= txdr->count)
- lc = ((txdr->count / 64) * 2) + 1;
- else
- lc = ((rxdr->count / 64) * 2) + 1;
-
- k = l = 0;
- for (j = 0; j <= lc; j++) { /* loop count loop */
- for (i = 0; i < 64; i++) { /* send the packets */
- e1000_create_lbtest_frame(txdr->buffer_info[i].skb,
- 1024);
- pci_dma_sync_single_for_device(pdev,
- txdr->buffer_info[k].dma,
- txdr->buffer_info[k].length,
- PCI_DMA_TODEVICE);
- if (unlikely(++k == txdr->count)) k = 0;
- }
- ew32(TDT, k);
- msleep(200);
- time = jiffies; /* set the start time for the receive */
- good_cnt = 0;
- do { /* receive the sent packets */
- pci_dma_sync_single_for_cpu(pdev,
- rxdr->buffer_info[l].dma,
- rxdr->buffer_info[l].length,
- PCI_DMA_FROMDEVICE);
-
- ret_val = e1000_check_lbtest_frame(
- rxdr->buffer_info[l].skb,
- 1024);
- if (!ret_val)
- good_cnt++;
- if (unlikely(++l == rxdr->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 && jiffies < (time + 20));
- if (good_cnt != 64) {
- ret_val = 13; /* ret_val is the same as mis-compare */
- break;
- }
- if (jiffies >= (time + 2)) {
- ret_val = 14; /* error code for time out error */
- break;
- }
- } /* end loop count loop */
- 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 (e1000_check_phy_reset_block(hw)) {
- DPRINTK(DRV, 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->media_type == e1000_media_type_internal_serdes) {
- int i = 0;
- hw->serdes_link_down = true;
-
- /* On some blade server designs, link establishment
- * could take as long as 2-3 minutes */
- do {
- e1000_check_for_link(hw);
- if (!hw->serdes_link_down)
- return *data;
- msleep(20);
- } while (i++ < 3750);
-
- *data = 1;
- } else {
- e1000_check_for_link(hw);
- if (hw->autoneg) /* if auto_neg is set wait for it */
- msleep(4000);
-
- if (!(er32(STATUS) & E1000_STATUS_LU)) {
- *data = 1;
- }
- }
- return *data;
-}
-
-static int e1000_get_sset_count(struct net_device *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);
- struct e1000_hw *hw = &adapter->hw;
- bool if_running = netif_running(netdev);
-
- set_bit(__E1000_TESTING, &adapter->flags);
- if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
- /* Offline tests */
-
- /* save speed, duplex, autoneg settings */
- u16 autoneg_advertised = hw->autoneg_advertised;
- u8 forced_speed_duplex = hw->forced_speed_duplex;
- u8 autoneg = hw->autoneg;
-
- DPRINTK(HW, INFO, "offline testing starting\n");
-
- /* Link test performed before hardware reset so autoneg doesn't
- * interfere with test result */
- if (e1000_link_test(adapter, &data[4]))
- eth_test->flags |= ETH_TEST_FL_FAILED;
-
- if (if_running)
- /* indicate we're in test mode */
- dev_close(netdev);
- else
- e1000_reset(adapter);
-
- if (e1000_reg_test(adapter, &data[0]))
- eth_test->flags |= ETH_TEST_FL_FAILED;
-
- e1000_reset(adapter);
- if (e1000_eeprom_test(adapter, &data[1]))
- eth_test->flags |= ETH_TEST_FL_FAILED;
-
- e1000_reset(adapter);
- if (e1000_intr_test(adapter, &data[2]))
- eth_test->flags |= ETH_TEST_FL_FAILED;
-
- e1000_reset(adapter);
- /* make sure the phy is powered up */
- e1000_power_up_phy(adapter);
- if (e1000_loopback_test(adapter, &data[3]))
- eth_test->flags |= ETH_TEST_FL_FAILED;
-
- /* restore speed, duplex, autoneg settings */
- hw->autoneg_advertised = autoneg_advertised;
- hw->forced_speed_duplex = forced_speed_duplex;
- hw->autoneg = autoneg;
-
- e1000_reset(adapter);
- clear_bit(__E1000_TESTING, &adapter->flags);
- if (if_running)
- dev_open(netdev);
- } else {
- DPRINTK(HW, INFO, "online testing starting\n");
- /* Online tests */
- if (e1000_link_test(adapter, &data[4]))
- eth_test->flags |= ETH_TEST_FL_FAILED;
-
- /* Online tests aren't run; pass by default */
- data[0] = 0;
- data[1] = 0;
- data[2] = 0;
- data[3] = 0;
-
- clear_bit(__E1000_TESTING, &adapter->flags);
- }
- msleep_interruptible(4 * 1000);
-}
-
-static int e1000_wol_exclusion(struct e1000_adapter *adapter,
- struct ethtool_wolinfo *wol)
-{
- struct e1000_hw *hw = &adapter->hw;
- int retval = 1; /* fail by default */
-
- switch (hw->device_id) {
- case E1000_DEV_ID_82542:
- case E1000_DEV_ID_82543GC_FIBER:
- case E1000_DEV_ID_82543GC_COPPER:
- case E1000_DEV_ID_82544EI_FIBER:
- case E1000_DEV_ID_82546EB_QUAD_COPPER:
- case E1000_DEV_ID_82545EM_FIBER:
- case E1000_DEV_ID_82545EM_COPPER:
- case E1000_DEV_ID_82546GB_QUAD_COPPER:
- case E1000_DEV_ID_82546GB_PCIE:
- case E1000_DEV_ID_82571EB_SERDES_QUAD:
- /* these don't support WoL at all */
- wol->supported = 0;
- break;
- case E1000_DEV_ID_82546EB_FIBER:
- case E1000_DEV_ID_82546GB_FIBER:
- case E1000_DEV_ID_82571EB_FIBER:
- case E1000_DEV_ID_82571EB_SERDES:
- case E1000_DEV_ID_82571EB_COPPER:
- /* Wake events not supported on port B */
- if (er32(STATUS) & E1000_STATUS_FUNC_1) {
- wol->supported = 0;
- break;
- }
- /* return success for non excluded adapter ports */
- retval = 0;
- break;
- case E1000_DEV_ID_82571EB_QUAD_COPPER:
- case E1000_DEV_ID_82571EB_QUAD_FIBER:
- case E1000_DEV_ID_82571EB_QUAD_COPPER_LOWPROFILE:
- case E1000_DEV_ID_82571PT_QUAD_COPPER:
- case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
- /* quad port adapters only support WoL on port A */
- if (!adapter->quad_port_a) {
- wol->supported = 0;
- break;
- }
- /* return success for non excluded adapter ports */
- retval = 0;
- break;
- default:
- /* dual port cards only support WoL on port A from now on
- * unless it was enabled in the eeprom for port B
- * so exclude FUNC_1 ports from having WoL enabled */
- if (er32(STATUS) & E1000_STATUS_FUNC_1 &&
- !adapter->eeprom_wol) {
- wol->supported = 0;
- break;
- }
-
- retval = 0;
- }
-
- return retval;
-}
-
-static void e1000_get_wol(struct net_device *netdev,
- struct ethtool_wolinfo *wol)
-{
- struct e1000_adapter *adapter = netdev_priv(netdev);
- struct e1000_hw *hw = &adapter->hw;
-
- wol->supported = WAKE_UCAST | WAKE_MCAST |
- WAKE_BCAST | WAKE_MAGIC;
- wol->wolopts = 0;
-
- /* this function will set ->supported = 0 and return 1 if wol is not
- * supported by this hardware */
- if (e1000_wol_exclusion(adapter, wol) ||
- !device_can_wakeup(&adapter->pdev->dev))
- return;
-
- /* apply any specific unsupported masks here */
- switch (hw->device_id) {
- case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
- /* KSP3 does not suppport UCAST wake-ups */
- wol->supported &= ~WAKE_UCAST;
-
- if (adapter->wol & E1000_WUFC_EX)
- DPRINTK(DRV, ERR, "Interface does not support "
- "directed (unicast) frame wake-up packets\n");
- break;
- default:
- break;
- }
-
- 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;
-
- return;
-}
-
-static int e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
-{
- struct e1000_adapter *adapter = netdev_priv(netdev);
- struct e1000_hw *hw = &adapter->hw;
-
- if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE))
- return -EOPNOTSUPP;
-
- if (e1000_wol_exclusion(adapter, wol) ||
- !device_can_wakeup(&adapter->pdev->dev))
- return wol->wolopts ? -EOPNOTSUPP : 0;
-
- switch (hw->device_id) {
- case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
- if (wol->wolopts & WAKE_UCAST) {
- DPRINTK(DRV, ERR, "Interface does not support "
- "directed (unicast) frame wake-up packets\n");
- return -EOPNOTSUPP;
- }
- break;
- default:
- break;
- }
-
- /* 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;
-
- device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
-
- return 0;
-}
-
-/* toggle LED 4 times per second = 2 "blinks" per second */
-#define E1000_ID_INTERVAL (HZ/4)
-
-/* bit defines for adapter->led_status */
-#define E1000_LED_ON 0
-
-static void e1000_led_blink_callback(unsigned long data)
-{
- struct e1000_adapter *adapter = (struct e1000_adapter *) data;
- struct e1000_hw *hw = &adapter->hw;
-
- if (test_and_change_bit(E1000_LED_ON, &adapter->led_status))
- e1000_led_off(hw);
- else
- e1000_led_on(hw);
-
- mod_timer(&adapter->blink_timer, jiffies + E1000_ID_INTERVAL);
-}
-
-static int e1000_phys_id(struct net_device *netdev, u32 data)
-{
- struct e1000_adapter *adapter = netdev_priv(netdev);
- struct e1000_hw *hw = &adapter->hw;
-
- if (!data)
- data = INT_MAX;
-
- if (hw->mac_type < e1000_82571) {
- if (!adapter->blink_timer.function) {
- init_timer(&adapter->blink_timer);
- adapter->blink_timer.function = e1000_led_blink_callback;
- adapter->blink_timer.data = (unsigned long)adapter;
- }
- e1000_setup_led(hw);
- mod_timer(&adapter->blink_timer, jiffies);
- msleep_interruptible(data * 1000);
- del_timer_sync(&adapter->blink_timer);
- } else if (hw->phy_type == e1000_phy_ife) {
- if (!adapter->blink_timer.function) {
- init_timer(&adapter->blink_timer);
- adapter->blink_timer.function = e1000_led_blink_callback;
- adapter->blink_timer.data = (unsigned long)adapter;
- }
- mod_timer(&adapter->blink_timer, jiffies);
- msleep_interruptible(data * 1000);
- del_timer_sync(&adapter->blink_timer);
- e1000_write_phy_reg(&(adapter->hw), IFE_PHY_SPECIAL_CONTROL_LED, 0);
- } else {
- e1000_blink_led_start(hw);
- msleep_interruptible(data * 1000);
- }
-
- e1000_led_off(hw);
- clear_bit(E1000_LED_ON, &adapter->led_status);
- e1000_cleanup_led(hw);
-
- return 0;
-}
-
-static int e1000_nway_reset(struct net_device *netdev)
-{
- struct e1000_adapter *adapter = netdev_priv(netdev);
- if (netif_running(netdev))
- e1000_reinit_locked(adapter);
- return 0;
-}
-
-static void e1000_get_ethtool_stats(struct net_device *netdev,
- struct ethtool_stats *stats, u64 *data)
-{
- struct e1000_adapter *adapter = netdev_priv(netdev);
- int i;
-
- e1000_update_stats(adapter);
- for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
- char *p = (char *)adapter+e1000_gstrings_stats[i].stat_offset;
- data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
- sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
- }
-/* BUG_ON(i != E1000_STATS_LEN); */
-}
-
-static void e1000_get_strings(struct net_device *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;
- }
-/* BUG_ON(p - data != E1000_STATS_LEN * ETH_GSTRING_LEN); */
- break;
- }
-}
-
-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,
- .get_rx_csum = e1000_get_rx_csum,
- .set_rx_csum = e1000_set_rx_csum,
- .get_tx_csum = e1000_get_tx_csum,
- .set_tx_csum = e1000_set_tx_csum,
- .set_sg = ethtool_op_set_sg,
- .set_tso = e1000_set_tso,
- .self_test = e1000_diag_test,
- .get_strings = e1000_get_strings,
- .phys_id = e1000_phys_id,
- .get_ethtool_stats = e1000_get_ethtool_stats,
- .get_sset_count = e1000_get_sset_count,
-};
-
-void e1000_set_ethtool_ops(struct net_device *netdev)
-{
- SET_ETHTOOL_OPS(netdev, &e1000_ethtool_ops);
-}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/devices/e1000/e1000_ethtool-2.6.29-orig.c Tue Jan 10 11:58:09 2012 +0100
@@ -0,0 +1,1987 @@
+/*******************************************************************************
+
+ Intel PRO/1000 Linux driver
+ Copyright(c) 1999 - 2006 Intel Corporation.
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms and conditions of the GNU General Public License,
+ version 2, as published by the Free Software Foundation.
+
+ This program is distributed in the hope it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along with
+ this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+ 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 "e1000.h"
+#include <asm/uaccess.h>
+
+struct e1000_stats {
+ char stat_string[ETH_GSTRING_LEN];
+ int sizeof_stat;
+ int stat_offset;
+};
+
+#define E1000_STAT(m) FIELD_SIZEOF(struct e1000_adapter, m), \
+ offsetof(struct e1000_adapter, m)
+static const struct e1000_stats e1000_gstrings_stats[] = {
+ { "rx_packets", E1000_STAT(stats.gprc) },
+ { "tx_packets", E1000_STAT(stats.gptc) },
+ { "rx_bytes", E1000_STAT(stats.gorcl) },
+ { "tx_bytes", E1000_STAT(stats.gotcl) },
+ { "rx_broadcast", E1000_STAT(stats.bprc) },
+ { "tx_broadcast", E1000_STAT(stats.bptc) },
+ { "rx_multicast", E1000_STAT(stats.mprc) },
+ { "tx_multicast", E1000_STAT(stats.mptc) },
+ { "rx_errors", E1000_STAT(stats.rxerrc) },
+ { "tx_errors", E1000_STAT(stats.txerrc) },
+ { "tx_dropped", E1000_STAT(net_stats.tx_dropped) },
+ { "multicast", E1000_STAT(stats.mprc) },
+ { "collisions", E1000_STAT(stats.colc) },
+ { "rx_length_errors", E1000_STAT(stats.rlerrc) },
+ { "rx_over_errors", E1000_STAT(net_stats.rx_over_errors) },
+ { "rx_crc_errors", E1000_STAT(stats.crcerrs) },
+ { "rx_frame_errors", E1000_STAT(net_stats.rx_frame_errors) },
+ { "rx_no_buffer_count", E1000_STAT(stats.rnbc) },
+ { "rx_missed_errors", E1000_STAT(stats.mpc) },
+ { "tx_aborted_errors", E1000_STAT(stats.ecol) },
+ { "tx_carrier_errors", E1000_STAT(stats.tncrs) },
+ { "tx_fifo_errors", E1000_STAT(net_stats.tx_fifo_errors) },
+ { "tx_heartbeat_errors", E1000_STAT(net_stats.tx_heartbeat_errors) },
+ { "tx_window_errors", E1000_STAT(stats.latecol) },
+ { "tx_abort_late_coll", E1000_STAT(stats.latecol) },
+ { "tx_deferred_ok", E1000_STAT(stats.dc) },
+ { "tx_single_coll_ok", E1000_STAT(stats.scc) },
+ { "tx_multi_coll_ok", E1000_STAT(stats.mcc) },
+ { "tx_timeout_count", E1000_STAT(tx_timeout_count) },
+ { "tx_restart_queue", E1000_STAT(restart_queue) },
+ { "rx_long_length_errors", E1000_STAT(stats.roc) },
+ { "rx_short_length_errors", E1000_STAT(stats.ruc) },
+ { "rx_align_errors", E1000_STAT(stats.algnerrc) },
+ { "tx_tcp_seg_good", E1000_STAT(stats.tsctc) },
+ { "tx_tcp_seg_failed", E1000_STAT(stats.tsctfc) },
+ { "rx_flow_control_xon", E1000_STAT(stats.xonrxc) },
+ { "rx_flow_control_xoff", E1000_STAT(stats.xoffrxc) },
+ { "tx_flow_control_xon", E1000_STAT(stats.xontxc) },
+ { "tx_flow_control_xoff", E1000_STAT(stats.xofftxc) },
+ { "rx_long_byte_count", E1000_STAT(stats.gorcl) },
+ { "rx_csum_offload_good", E1000_STAT(hw_csum_good) },
+ { "rx_csum_offload_errors", E1000_STAT(hw_csum_err) },
+ { "rx_header_split", E1000_STAT(rx_hdr_split) },
+ { "alloc_rx_buff_failed", E1000_STAT(alloc_rx_buff_failed) },
+ { "tx_smbus", E1000_STAT(stats.mgptc) },
+ { "rx_smbus", E1000_STAT(stats.mgprc) },
+ { "dropped_smbus", E1000_STAT(stats.mgpdc) },
+};
+
+#define E1000_QUEUE_STATS_LEN 0
+#define E1000_GLOBAL_STATS_LEN ARRAY_SIZE(e1000_gstrings_stats)
+#define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN + E1000_QUEUE_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;
+
+ if (hw->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->autoneg == 1) {
+ ecmd->advertising |= ADVERTISED_Autoneg;
+ /* the e1000 autoneg seems to match ethtool nicely */
+ ecmd->advertising |= hw->autoneg_advertised;
+ }
+
+ ecmd->port = PORT_TP;
+ ecmd->phy_address = hw->phy_addr;
+
+ if (hw->mac_type == e1000_82543)
+ ecmd->transceiver = XCVR_EXTERNAL;
+ else
+ 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;
+
+ if (hw->mac_type >= e1000_82545)
+ ecmd->transceiver = XCVR_INTERNAL;
+ else
+ ecmd->transceiver = XCVR_EXTERNAL;
+ }
+
+ if (er32(STATUS) & E1000_STATUS_LU) {
+
+ e1000_get_speed_and_duplex(hw, &adapter->link_speed,
+ &adapter->link_duplex);
+ ecmd->speed = adapter->link_speed;
+
+ /* unfortunatly FULL_DUPLEX != DUPLEX_FULL
+ * and HALF_DUPLEX != DUPLEX_HALF */
+
+ if (adapter->link_duplex == FULL_DUPLEX)
+ ecmd->duplex = DUPLEX_FULL;
+ else
+ ecmd->duplex = DUPLEX_HALF;
+ } else {
+ ecmd->speed = -1;
+ ecmd->duplex = -1;
+ }
+
+ ecmd->autoneg = ((hw->media_type == e1000_media_type_fiber) ||
+ hw->autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
+ return 0;
+}
+
+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;
+
+ /* When SoL/IDER sessions are active, autoneg/speed/duplex
+ * cannot be changed */
+ if (e1000_check_phy_reset_block(hw)) {
+ DPRINTK(DRV, ERR, "Cannot change link characteristics "
+ "when SoL/IDER is active.\n");
+ return -EINVAL;
+ }
+
+ while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
+ msleep(1);
+
+ if (ecmd->autoneg == AUTONEG_ENABLE) {
+ hw->autoneg = 1;
+ if (hw->media_type == e1000_media_type_fiber)
+ hw->autoneg_advertised = ADVERTISED_1000baseT_Full |
+ ADVERTISED_FIBRE |
+ ADVERTISED_Autoneg;
+ else
+ hw->autoneg_advertised = ecmd->advertising |
+ ADVERTISED_TP |
+ ADVERTISED_Autoneg;
+ ecmd->advertising = hw->autoneg_advertised;
+ } else
+ if (e1000_set_spd_dplx(adapter, ecmd->speed + ecmd->duplex)) {
+ clear_bit(__E1000_RESETTING, &adapter->flags);
+ return -EINVAL;
+ }
+
+ /* reset the link */
+
+ if (netif_running(adapter->netdev)) {
+ e1000_down(adapter);
+ e1000_up(adapter);
+ } else
+ e1000_reset(adapter);
+
+ clear_bit(__E1000_RESETTING, &adapter->flags);
+ return 0;
+}
+
+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 == E1000_FC_RX_PAUSE)
+ pause->rx_pause = 1;
+ else if (hw->fc == E1000_FC_TX_PAUSE)
+ pause->tx_pause = 1;
+ else if (hw->fc == 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->flags))
+ msleep(1);
+
+ if (pause->rx_pause && pause->tx_pause)
+ hw->fc = E1000_FC_FULL;
+ else if (pause->rx_pause && !pause->tx_pause)
+ hw->fc = E1000_FC_RX_PAUSE;
+ else if (!pause->rx_pause && pause->tx_pause)
+ hw->fc = E1000_FC_TX_PAUSE;
+ else if (!pause->rx_pause && !pause->tx_pause)
+ hw->fc = E1000_FC_NONE;
+
+ hw->original_fc = hw->fc;
+
+ if (adapter->fc_autoneg == AUTONEG_ENABLE) {
+ if (netif_running(adapter->netdev)) {
+ e1000_down(adapter);
+ e1000_up(adapter);
+ } else
+ e1000_reset(adapter);
+ } else
+ retval = ((hw->media_type == e1000_media_type_fiber) ?
+ e1000_setup_link(hw) : e1000_force_mac_fc(hw));
+
+ clear_bit(__E1000_RESETTING, &adapter->flags);
+ return retval;
+}
+
+static u32 e1000_get_rx_csum(struct net_device *netdev)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ return adapter->rx_csum;
+}
+
+static int e1000_set_rx_csum(struct net_device *netdev, u32 data)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ adapter->rx_csum = data;
+
+ if (netif_running(netdev))
+ e1000_reinit_locked(adapter);
+ else
+ e1000_reset(adapter);
+ return 0;
+}
+
+static u32 e1000_get_tx_csum(struct net_device *netdev)
+{
+ return (netdev->features & NETIF_F_HW_CSUM) != 0;
+}
+
+static int e1000_set_tx_csum(struct net_device *netdev, u32 data)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+
+ if (hw->mac_type < e1000_82543) {
+ if (!data)
+ return -EINVAL;
+ return 0;
+ }
+
+ if (data)
+ netdev->features |= NETIF_F_HW_CSUM;
+ else
+ netdev->features &= ~NETIF_F_HW_CSUM;
+
+ return 0;
+}
+
+static int e1000_set_tso(struct net_device *netdev, u32 data)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+
+ if ((hw->mac_type < e1000_82544) ||
+ (hw->mac_type == e1000_82547))
+ return data ? -EINVAL : 0;
+
+ if (data)
+ netdev->features |= NETIF_F_TSO;
+ else
+ netdev->features &= ~NETIF_F_TSO;
+
+ if (data && (adapter->hw.mac_type > e1000_82547_rev_2))
+ netdev->features |= NETIF_F_TSO6;
+ else
+ netdev->features &= ~NETIF_F_TSO6;
+
+ DPRINTK(PROBE, INFO, "TSO is %s\n", data ? "Enabled" : "Disabled");
+ adapter->tso_force = true;
+ return 0;
+}
+
+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 *netdev)
+{
+#define E1000_REGS_LEN 32
+ 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;
+
+ memset(p, 0, E1000_REGS_LEN * sizeof(u32));
+
+ regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id;
+
+ regs_buff[0] = er32(CTRL);
+ regs_buff[1] = er32(STATUS);
+
+ regs_buff[2] = er32(RCTL);
+ regs_buff[3] = er32(RDLEN);
+ regs_buff[4] = er32(RDH);
+ regs_buff[5] = er32(RDT);
+ regs_buff[6] = er32(RDTR);
+
+ regs_buff[7] = er32(TCTL);
+ regs_buff[8] = er32(TDLEN);
+ regs_buff[9] = er32(TDH);
+ regs_buff[10] = er32(TDT);
+ regs_buff[11] = er32(TIDV);
+
+ regs_buff[12] = hw->phy_type; /* PHY type (IGP=1, M88=0) */
+ if (hw->phy_type == e1000_phy_igp) {
+ e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
+ IGP01E1000_PHY_AGC_A);
+ e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_A &
+ IGP01E1000_PHY_PAGE_SELECT, &phy_data);
+ regs_buff[13] = (u32)phy_data; /* cable length */
+ e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
+ IGP01E1000_PHY_AGC_B);
+ e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_B &
+ IGP01E1000_PHY_PAGE_SELECT, &phy_data);
+ regs_buff[14] = (u32)phy_data; /* cable length */
+ e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
+ IGP01E1000_PHY_AGC_C);
+ e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_C &
+ IGP01E1000_PHY_PAGE_SELECT, &phy_data);
+ regs_buff[15] = (u32)phy_data; /* cable length */
+ e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
+ IGP01E1000_PHY_AGC_D);
+ e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_D &
+ IGP01E1000_PHY_PAGE_SELECT, &phy_data);
+ regs_buff[16] = (u32)phy_data; /* cable length */
+ regs_buff[17] = 0; /* extended 10bt distance (not needed) */
+ e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0);
+ e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS &
+ IGP01E1000_PHY_PAGE_SELECT, &phy_data);
+ regs_buff[18] = (u32)phy_data; /* cable polarity */
+ e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
+ IGP01E1000_PHY_PCS_INIT_REG);
+ e1000_read_phy_reg(hw, IGP01E1000_PHY_PCS_INIT_REG &
+ IGP01E1000_PHY_PAGE_SELECT, &phy_data);
+ regs_buff[19] = (u32)phy_data; /* cable polarity */
+ regs_buff[20] = 0; /* polarity correction enabled (always) */
+ regs_buff[22] = 0; /* phy receive errors (unavailable) */
+ regs_buff[23] = regs_buff[18]; /* mdix mode */
+ e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0);
+ } else {
+ e1000_read_phy_reg(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) */
+ e1000_read_phy_reg(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] = adapter->phy_stats.idle_errors; /* phy idle errors */
+ e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data);
+ regs_buff[24] = (u32)phy_data; /* phy local receiver status */
+ regs_buff[25] = regs_buff[24]; /* phy remote receiver status */
+ if (hw->mac_type >= e1000_82540 &&
+ hw->mac_type < e1000_82571 &&
+ hw->media_type == e1000_media_type_copper) {
+ regs_buff[26] = er32(MANC);
+ }
+}
+
+static int e1000_get_eeprom_len(struct net_device *netdev)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+
+ return hw->eeprom.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, last_word;
+ int ret_val = 0;
+ u16 i;
+
+ if (eeprom->len == 0)
+ return -EINVAL;
+
+ eeprom->magic = hw->vendor_id | (hw->device_id << 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;
+
+ if (hw->eeprom.type == e1000_eeprom_spi)
+ ret_val = e1000_read_eeprom(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_eeprom(hw, first_word + i, 1,
+ &eeprom_buff[i]);
+ if (ret_val)
+ break;
+ }
+ }
+
+ /* 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, first_word, last_word, ret_val = 0;
+ u16 i;
+
+ if (eeprom->len == 0)
+ return -EOPNOTSUPP;
+
+ if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
+ return -EFAULT;
+
+ max_len = hw->eeprom.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;
+
+ 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_eeprom(hw, first_word, 1,
+ &eeprom_buff[0]);
+ ptr++;
+ }
+ if (((eeprom->offset + eeprom->len) & 1) && (ret_val == 0)) {
+ /* need read/modify/write of last changed EEPROM word */
+ /* only the first byte of the word is being modified */
+ ret_val = e1000_read_eeprom(hw, last_word, 1,
+ &eeprom_buff[last_word - first_word]);
+ }
+
+ /* 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++)
+ eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]);
+
+ ret_val = e1000_write_eeprom(hw, first_word,
+ last_word - first_word + 1, eeprom_buff);
+
+ /* Update the checksum over the first part of the EEPROM if needed
+ * and flush shadow RAM for 82573 conrollers */
+ if ((ret_val == 0) && ((first_word <= EEPROM_CHECKSUM_REG) ||
+ (hw->mac_type == e1000_82573)))
+ e1000_update_eeprom_checksum(hw);
+
+ 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);
+ struct e1000_hw *hw = &adapter->hw;
+ char firmware_version[32];
+ u16 eeprom_data;
+
+ strncpy(drvinfo->driver, e1000_driver_name, 32);
+ strncpy(drvinfo->version, e1000_driver_version, 32);
+
+ /* EEPROM image version # is reported as firmware version # for
+ * 8257{1|2|3} controllers */
+ e1000_read_eeprom(hw, 5, 1, &eeprom_data);
+ switch (hw->mac_type) {
+ case e1000_82571:
+ case e1000_82572:
+ case e1000_82573:
+ case e1000_80003es2lan:
+ case e1000_ich8lan:
+ sprintf(firmware_version, "%d.%d-%d",
+ (eeprom_data & 0xF000) >> 12,
+ (eeprom_data & 0x0FF0) >> 4,
+ eeprom_data & 0x000F);
+ break;
+ default:
+ sprintf(firmware_version, "N/A");
+ }
+
+ strncpy(drvinfo->fw_version, firmware_version, 32);
+ strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32);
+ 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);
+ struct e1000_hw *hw = &adapter->hw;
+ e1000_mac_type mac_type = hw->mac_type;
+ struct e1000_tx_ring *txdr = adapter->tx_ring;
+ struct e1000_rx_ring *rxdr = adapter->rx_ring;
+
+ ring->rx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_RXD :
+ E1000_MAX_82544_RXD;
+ ring->tx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_TXD :
+ E1000_MAX_82544_TXD;
+ ring->rx_mini_max_pending = 0;
+ ring->rx_jumbo_max_pending = 0;
+ ring->rx_pending = rxdr->count;
+ ring->tx_pending = txdr->count;
+ ring->rx_mini_pending = 0;
+ ring->rx_jumbo_pending = 0;
+}
+
+static int e1000_set_ringparam(struct net_device *netdev,
+ struct ethtool_ringparam *ring)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ e1000_mac_type mac_type = hw->mac_type;
+ struct e1000_tx_ring *txdr, *tx_old;
+ struct e1000_rx_ring *rxdr, *rx_old;
+ int i, err;
+
+ if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
+ return -EINVAL;
+
+ while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
+ msleep(1);
+
+ if (netif_running(adapter->netdev))
+ e1000_down(adapter);
+
+ tx_old = adapter->tx_ring;
+ rx_old = adapter->rx_ring;
+
+ err = -ENOMEM;
+ txdr = kcalloc(adapter->num_tx_queues, sizeof(struct e1000_tx_ring), GFP_KERNEL);
+ if (!txdr)
+ goto err_alloc_tx;
+
+ rxdr = kcalloc(adapter->num_rx_queues, sizeof(struct e1000_rx_ring), GFP_KERNEL);
+ if (!rxdr)
+ goto err_alloc_rx;
+
+ adapter->tx_ring = txdr;
+ adapter->rx_ring = rxdr;
+
+ rxdr->count = max(ring->rx_pending,(u32)E1000_MIN_RXD);
+ rxdr->count = min(rxdr->count,(u32)(mac_type < e1000_82544 ?
+ E1000_MAX_RXD : E1000_MAX_82544_RXD));
+ rxdr->count = ALIGN(rxdr->count, REQ_RX_DESCRIPTOR_MULTIPLE);
+
+ txdr->count = max(ring->tx_pending,(u32)E1000_MIN_TXD);
+ txdr->count = min(txdr->count,(u32)(mac_type < e1000_82544 ?
+ E1000_MAX_TXD : E1000_MAX_82544_TXD));
+ txdr->count = ALIGN(txdr->count, REQ_TX_DESCRIPTOR_MULTIPLE);
+
+ for (i = 0; i < adapter->num_tx_queues; i++)
+ txdr[i].count = txdr->count;
+ for (i = 0; i < adapter->num_rx_queues; i++)
+ rxdr[i].count = rxdr->count;
+
+ if (netif_running(adapter->netdev)) {
+ /* Try to get new resources before deleting old */
+ err = e1000_setup_all_rx_resources(adapter);
+ if (err)
+ goto err_setup_rx;
+ err = e1000_setup_all_tx_resources(adapter);
+ if (err)
+ goto err_setup_tx;
+
+ /* save the new, restore the old in order to free it,
+ * then restore the new back again */
+
+ adapter->rx_ring = rx_old;
+ adapter->tx_ring = tx_old;
+ e1000_free_all_rx_resources(adapter);
+ e1000_free_all_tx_resources(adapter);
+ kfree(tx_old);
+ kfree(rx_old);
+ adapter->rx_ring = rxdr;
+ adapter->tx_ring = txdr;
+ err = e1000_up(adapter);
+ if (err)
+ goto err_setup;
+ }
+
+ clear_bit(__E1000_RESETTING, &adapter->flags);
+ return 0;
+err_setup_tx:
+ e1000_free_all_rx_resources(adapter);
+err_setup_rx:
+ adapter->rx_ring = rx_old;
+ adapter->tx_ring = tx_old;
+ kfree(rxdr);
+err_alloc_rx:
+ kfree(txdr);
+err_alloc_tx:
+ e1000_up(adapter);
+err_setup:
+ clear_bit(__E1000_RESETTING, &adapter->flags);
+ return err;
+}
+
+static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data, int reg,
+ u32 mask, u32 write)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ static const u32 test[] =
+ {0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF};
+ u8 __iomem *address = hw->hw_addr + reg;
+ u32 read;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(test); i++) {
+ writel(write & test[i], address);
+ read = readl(address);
+ if (read != (write & test[i] & mask)) {
+ DPRINTK(DRV, ERR, "pattern test reg %04X failed: "
+ "got 0x%08X expected 0x%08X\n",
+ reg, read, (write & test[i] & 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)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u8 __iomem *address = hw->hw_addr + reg;
+ u32 read;
+
+ writel(write & mask, address);
+ read = readl(address);
+ if ((read & mask) != (write & mask)) {
+ DPRINTK(DRV, ERR, "set/check reg %04X test failed: "
+ "got 0x%08X expected 0x%08X\n",
+ reg, (read & mask), (write & mask));
+ *data = reg;
+ return true;
+ }
+ return false;
+}
+
+#define REG_PATTERN_TEST(reg, mask, write) \
+ do { \
+ if (reg_pattern_test(adapter, data, \
+ (hw->mac_type >= e1000_82543) \
+ ? E1000_##reg : E1000_82542_##reg, \
+ mask, write)) \
+ return 1; \
+ } while (0)
+
+#define REG_SET_AND_CHECK(reg, mask, write) \
+ do { \
+ if (reg_set_and_check(adapter, data, \
+ (hw->mac_type >= e1000_82543) \
+ ? E1000_##reg : E1000_82542_##reg, \
+ mask, write)) \
+ return 1; \
+ } while (0)
+
+static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
+{
+ u32 value, before, after;
+ u32 i, toggle;
+ struct e1000_hw *hw = &adapter->hw;
+
+ /* The status register is Read Only, so a write should fail.
+ * Some bits that get toggled are ignored.
+ */
+ switch (hw->mac_type) {
+ /* there are several bits on newer hardware that are r/w */
+ case e1000_82571:
+ case e1000_82572:
+ case e1000_80003es2lan:
+ toggle = 0x7FFFF3FF;
+ break;
+ case e1000_82573:
+ case e1000_ich8lan:
+ toggle = 0x7FFFF033;
+ break;
+ default:
+ toggle = 0xFFFFF833;
+ break;
+ }
+
+ before = er32(STATUS);
+ value = (er32(STATUS) & toggle);
+ ew32(STATUS, toggle);
+ after = er32(STATUS) & toggle;
+ if (value != after) {
+ DPRINTK(DRV, 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 (hw->mac_type != e1000_ich8lan) {
+ REG_PATTERN_TEST(FCAL, 0xFFFFFFFF, 0xFFFFFFFF);
+ REG_PATTERN_TEST(FCAH, 0x0000FFFF, 0xFFFFFFFF);
+ REG_PATTERN_TEST(FCT, 0x0000FFFF, 0xFFFFFFFF);
+ REG_PATTERN_TEST(VET, 0x0000FFFF, 0xFFFFFFFF);
+ }
+
+ REG_PATTERN_TEST(RDTR, 0x0000FFFF, 0xFFFFFFFF);
+ REG_PATTERN_TEST(RDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
+ REG_PATTERN_TEST(RDLEN, 0x000FFF80, 0x000FFFFF);
+ REG_PATTERN_TEST(RDH, 0x0000FFFF, 0x0000FFFF);
+ REG_PATTERN_TEST(RDT, 0x0000FFFF, 0x0000FFFF);
+ REG_PATTERN_TEST(FCRTH, 0x0000FFF8, 0x0000FFF8);
+ REG_PATTERN_TEST(FCTTV, 0x0000FFFF, 0x0000FFFF);
+ REG_PATTERN_TEST(TIPG, 0x3FFFFFFF, 0x3FFFFFFF);
+ REG_PATTERN_TEST(TDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
+ REG_PATTERN_TEST(TDLEN, 0x000FFF80, 0x000FFFFF);
+
+ REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x00000000);
+
+ before = (hw->mac_type == e1000_ich8lan ?
+ 0x06C3B33E : 0x06DFB3FE);
+ REG_SET_AND_CHECK(RCTL, before, 0x003FFFFB);
+ REG_SET_AND_CHECK(TCTL, 0xFFFFFFFF, 0x00000000);
+
+ if (hw->mac_type >= e1000_82543) {
+
+ REG_SET_AND_CHECK(RCTL, before, 0xFFFFFFFF);
+ REG_PATTERN_TEST(RDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
+ if (hw->mac_type != e1000_ich8lan)
+ REG_PATTERN_TEST(TXCW, 0xC000FFFF, 0x0000FFFF);
+ REG_PATTERN_TEST(TDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
+ REG_PATTERN_TEST(TIDV, 0x0000FFFF, 0x0000FFFF);
+ value = (hw->mac_type == e1000_ich8lan ?
+ E1000_RAR_ENTRIES_ICH8LAN : E1000_RAR_ENTRIES);
+ for (i = 0; i < value; i++) {
+ REG_PATTERN_TEST(RA + (((i << 1) + 1) << 2), 0x8003FFFF,
+ 0xFFFFFFFF);
+ }
+
+ } else {
+
+ REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x01FFFFFF);
+ REG_PATTERN_TEST(RDBAL, 0xFFFFF000, 0xFFFFFFFF);
+ REG_PATTERN_TEST(TXCW, 0x0000FFFF, 0x0000FFFF);
+ REG_PATTERN_TEST(TDBAL, 0xFFFFF000, 0xFFFFFFFF);
+
+ }
+
+ value = (hw->mac_type == e1000_ich8lan ?
+ E1000_MC_TBL_SIZE_ICH8LAN : E1000_MC_TBL_SIZE);
+ for (i = 0; i < value; i++)
+ REG_PATTERN_TEST(MTA + (i << 2), 0xFFFFFFFF, 0xFFFFFFFF);
+
+ *data = 0;
+ return 0;
+}
+
+static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u16 temp;
+ u16 checksum = 0;
+ u16 i;
+
+ *data = 0;
+ /* Read and add up the contents of the EEPROM */
+ for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) {
+ if ((e1000_read_eeprom(hw, i, 1, &temp)) < 0) {
+ *data = 1;
+ break;
+ }
+ checksum += temp;
+ }
+
+ /* If Checksum is not Correct return error else test passed */
+ if ((checksum != (u16)EEPROM_SUM) && !(*data))
+ *data = 2;
+
+ return *data;
+}
+
+static irqreturn_t e1000_test_intr(int 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;
+ u32 mask, i = 0;
+ bool shared_int = true;
+ u32 irq = adapter->pdev->irq;
+ struct e1000_hw *hw = &adapter->hw;
+
+ *data = 0;
+
+ /* NOTE: we don't test MSI interrupts here, yet */
+ /* Hook up test interrupt handler just for this test */
+ if (!request_irq(irq, &e1000_test_intr, IRQF_PROBE_SHARED, netdev->name,
+ netdev))
+ shared_int = false;
+ else if (request_irq(irq, &e1000_test_intr, IRQF_SHARED,
+ netdev->name, netdev)) {
+ *data = 1;
+ return -1;
+ }
+ DPRINTK(HW, INFO, "testing %s interrupt\n",
+ (shared_int ? "shared" : "unshared"));
+
+ /* Disable all the interrupts */
+ ew32(IMC, 0xFFFFFFFF);
+ msleep(10);
+
+ /* Test each interrupt */
+ for (; i < 10; i++) {
+
+ if (hw->mac_type == e1000_ich8lan && i == 8)
+ continue;
+
+ /* Interrupt to test */
+ mask = 1 << i;
+
+ 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);
+ msleep(10);
+
+ 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);
+ msleep(10);
+
+ 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);
+ msleep(10);
+
+ if (adapter->test_icr) {
+ *data = 5;
+ break;
+ }
+ }
+ }
+
+ /* Disable all the interrupts */
+ ew32(IMC, 0xFFFFFFFF);
+ msleep(10);
+
+ /* Unhook test interrupt handler */
+ free_irq(irq, netdev);
+
+ return *data;
+}
+
+static void e1000_free_desc_rings(struct e1000_adapter *adapter)
+{
+ struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
+ struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
+ struct pci_dev *pdev = adapter->pdev;
+ int i;
+
+ if (txdr->desc && txdr->buffer_info) {
+ for (i = 0; i < txdr->count; i++) {
+ if (txdr->buffer_info[i].dma)
+ pci_unmap_single(pdev, txdr->buffer_info[i].dma,
+ txdr->buffer_info[i].length,
+ PCI_DMA_TODEVICE);
+ if (txdr->buffer_info[i].skb)
+ dev_kfree_skb(txdr->buffer_info[i].skb);
+ }
+ }
+
+ if (rxdr->desc && rxdr->buffer_info) {
+ for (i = 0; i < rxdr->count; i++) {
+ if (rxdr->buffer_info[i].dma)
+ pci_unmap_single(pdev, rxdr->buffer_info[i].dma,
+ rxdr->buffer_info[i].length,
+ PCI_DMA_FROMDEVICE);
+ if (rxdr->buffer_info[i].skb)
+ dev_kfree_skb(rxdr->buffer_info[i].skb);
+ }
+ }
+
+ if (txdr->desc) {
+ pci_free_consistent(pdev, txdr->size, txdr->desc, txdr->dma);
+ txdr->desc = NULL;
+ }
+ if (rxdr->desc) {
+ pci_free_consistent(pdev, rxdr->size, rxdr->desc, rxdr->dma);
+ rxdr->desc = NULL;
+ }
+
+ kfree(txdr->buffer_info);
+ txdr->buffer_info = NULL;
+ kfree(rxdr->buffer_info);
+ rxdr->buffer_info = NULL;
+
+ return;
+}
+
+static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
+ struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
+ struct pci_dev *pdev = adapter->pdev;
+ u32 rctl;
+ int i, ret_val;
+
+ /* Setup Tx descriptor ring and Tx buffers */
+
+ if (!txdr->count)
+ txdr->count = E1000_DEFAULT_TXD;
+
+ txdr->buffer_info = kcalloc(txdr->count, sizeof(struct e1000_buffer),
+ GFP_KERNEL);
+ if (!txdr->buffer_info) {
+ ret_val = 1;
+ goto err_nomem;
+ }
+
+ txdr->size = txdr->count * sizeof(struct e1000_tx_desc);
+ txdr->size = ALIGN(txdr->size, 4096);
+ txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma);
+ if (!txdr->desc) {
+ ret_val = 2;
+ goto err_nomem;
+ }
+ memset(txdr->desc, 0, txdr->size);
+ txdr->next_to_use = txdr->next_to_clean = 0;
+
+ ew32(TDBAL, ((u64)txdr->dma & 0x00000000FFFFFFFF));
+ ew32(TDBAH, ((u64)txdr->dma >> 32));
+ ew32(TDLEN, txdr->count * sizeof(struct e1000_tx_desc));
+ ew32(TDH, 0);
+ ew32(TDT, 0);
+ ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN |
+ E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT |
+ E1000_FDX_COLLISION_DISTANCE << E1000_COLD_SHIFT);
+
+ for (i = 0; i < txdr->count; i++) {
+ struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*txdr, i);
+ struct sk_buff *skb;
+ unsigned int size = 1024;
+
+ skb = alloc_skb(size, GFP_KERNEL);
+ if (!skb) {
+ ret_val = 3;
+ goto err_nomem;
+ }
+ skb_put(skb, size);
+ txdr->buffer_info[i].skb = skb;
+ txdr->buffer_info[i].length = skb->len;
+ txdr->buffer_info[i].dma =
+ pci_map_single(pdev, skb->data, skb->len,
+ PCI_DMA_TODEVICE);
+ tx_desc->buffer_addr = cpu_to_le64(txdr->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_RPS);
+ tx_desc->upper.data = 0;
+ }
+
+ /* Setup Rx descriptor ring and Rx buffers */
+
+ if (!rxdr->count)
+ rxdr->count = E1000_DEFAULT_RXD;
+
+ rxdr->buffer_info = kcalloc(rxdr->count, sizeof(struct e1000_buffer),
+ GFP_KERNEL);
+ if (!rxdr->buffer_info) {
+ ret_val = 4;
+ goto err_nomem;
+ }
+
+ rxdr->size = rxdr->count * sizeof(struct e1000_rx_desc);
+ rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma);
+ if (!rxdr->desc) {
+ ret_val = 5;
+ goto err_nomem;
+ }
+ memset(rxdr->desc, 0, rxdr->size);
+ rxdr->next_to_use = rxdr->next_to_clean = 0;
+
+ rctl = er32(RCTL);
+ ew32(RCTL, rctl & ~E1000_RCTL_EN);
+ ew32(RDBAL, ((u64)rxdr->dma & 0xFFFFFFFF));
+ ew32(RDBAH, ((u64)rxdr->dma >> 32));
+ ew32(RDLEN, rxdr->size);
+ ew32(RDH, 0);
+ ew32(RDT, 0);
+ rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
+ E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
+ (hw->mc_filter_type << E1000_RCTL_MO_SHIFT);
+ ew32(RCTL, rctl);
+
+ for (i = 0; i < rxdr->count; i++) {
+ struct e1000_rx_desc *rx_desc = E1000_RX_DESC(*rxdr, i);
+ struct sk_buff *skb;
+
+ skb = alloc_skb(E1000_RXBUFFER_2048 + NET_IP_ALIGN, GFP_KERNEL);
+ if (!skb) {
+ ret_val = 6;
+ goto err_nomem;
+ }
+ skb_reserve(skb, NET_IP_ALIGN);
+ rxdr->buffer_info[i].skb = skb;
+ rxdr->buffer_info[i].length = E1000_RXBUFFER_2048;
+ rxdr->buffer_info[i].dma =
+ pci_map_single(pdev, skb->data, E1000_RXBUFFER_2048,
+ PCI_DMA_FROMDEVICE);
+ rx_desc->buffer_addr = cpu_to_le64(rxdr->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)
+{
+ struct e1000_hw *hw = &adapter->hw;
+
+ /* Write out to PHY registers 29 and 30 to disable the Receiver. */
+ e1000_write_phy_reg(hw, 29, 0x001F);
+ e1000_write_phy_reg(hw, 30, 0x8FFC);
+ e1000_write_phy_reg(hw, 29, 0x001A);
+ e1000_write_phy_reg(hw, 30, 0x8FF0);
+}
+
+static void e1000_phy_reset_clk_and_crs(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u16 phy_reg;
+
+ /* Because we reset the PHY above, we need to re-force TX_CLK in the
+ * Extended PHY Specific Control Register to 25MHz clock. This
+ * value defaults back to a 2.5MHz clock when the PHY is reset.
+ */
+ e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg);
+ phy_reg |= M88E1000_EPSCR_TX_CLK_25;
+ e1000_write_phy_reg(hw,
+ M88E1000_EXT_PHY_SPEC_CTRL, phy_reg);
+
+ /* In addition, because of the s/w reset above, we need to enable
+ * CRS on TX. This must be set for both full and half duplex
+ * operation.
+ */
+ e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_reg);
+ phy_reg |= M88E1000_PSCR_ASSERT_CRS_ON_TX;
+ e1000_write_phy_reg(hw,
+ M88E1000_PHY_SPEC_CTRL, phy_reg);
+}
+
+static int e1000_nonintegrated_phy_loopback(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 ctrl_reg;
+ u16 phy_reg;
+
+ /* Setup the Device Control Register for PHY loopback test. */
+
+ ctrl_reg = er32(CTRL);
+ ctrl_reg |= (E1000_CTRL_ILOS | /* Invert Loss-Of-Signal */
+ 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 */
+
+ ew32(CTRL, ctrl_reg);
+
+ /* Read the PHY Specific Control Register (0x10) */
+ e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_reg);
+
+ /* Clear Auto-Crossover bits in PHY Specific Control Register
+ * (bits 6:5).
+ */
+ phy_reg &= ~M88E1000_PSCR_AUTO_X_MODE;
+ e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_reg);
+
+ /* Perform software reset on the PHY */
+ e1000_phy_reset(hw);
+
+ /* Have to setup TX_CLK and TX_CRS after software reset */
+ e1000_phy_reset_clk_and_crs(adapter);
+
+ e1000_write_phy_reg(hw, PHY_CTRL, 0x8100);
+
+ /* Wait for reset to complete. */
+ udelay(500);
+
+ /* Have to setup TX_CLK and TX_CRS after software reset */
+ e1000_phy_reset_clk_and_crs(adapter);
+
+ /* Write out to PHY registers 29 and 30 to disable the Receiver. */
+ e1000_phy_disable_receiver(adapter);
+
+ /* Set the loopback bit in the PHY control register. */
+ e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg);
+ phy_reg |= MII_CR_LOOPBACK;
+ e1000_write_phy_reg(hw, PHY_CTRL, phy_reg);
+
+ /* Setup TX_CLK and TX_CRS one more time. */
+ e1000_phy_reset_clk_and_crs(adapter);
+
+ /* Check Phy Configuration */
+ e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg);
+ if (phy_reg != 0x4100)
+ return 9;
+
+ e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg);
+ if (phy_reg != 0x0070)
+ return 10;
+
+ e1000_read_phy_reg(hw, 29, &phy_reg);
+ if (phy_reg != 0x001A)
+ return 11;
+
+ return 0;
+}
+
+static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 ctrl_reg = 0;
+ u32 stat_reg = 0;
+
+ hw->autoneg = false;
+
+ if (hw->phy_type == e1000_phy_m88) {
+ /* Auto-MDI/MDIX Off */
+ e1000_write_phy_reg(hw,
+ M88E1000_PHY_SPEC_CTRL, 0x0808);
+ /* reset to update Auto-MDI/MDIX */
+ e1000_write_phy_reg(hw, PHY_CTRL, 0x9140);
+ /* autoneg off */
+ e1000_write_phy_reg(hw, PHY_CTRL, 0x8140);
+ } else if (hw->phy_type == e1000_phy_gg82563)
+ e1000_write_phy_reg(hw,
+ GG82563_PHY_KMRN_MODE_CTRL,
+ 0x1CC);
+
+ ctrl_reg = er32(CTRL);
+
+ if (hw->phy_type == e1000_phy_ife) {
+ /* force 100, set loopback */
+ e1000_write_phy_reg(hw, PHY_CTRL, 0x6100);
+
+ /* Now set up the MAC to the same speed/duplex as the PHY. */
+ 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 */
+ } else {
+ /* force 1000, set loopback */
+ e1000_write_phy_reg(hw, PHY_CTRL, 0x4140);
+
+ /* 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 (hw->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 is half
+ * duplex link is detected. */
+ stat_reg = er32(STATUS);
+ if ((stat_reg & 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);
+
+ udelay(500);
+
+ return 0;
+}
+
+static int e1000_set_phy_loopback(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u16 phy_reg = 0;
+ u16 count = 0;
+
+ switch (hw->mac_type) {
+ case e1000_82543:
+ if (hw->media_type == e1000_media_type_copper) {
+ /* Attempt to setup Loopback mode on Non-integrated PHY.
+ * Some PHY registers get corrupted at random, so
+ * attempt this 10 times.
+ */
+ while (e1000_nonintegrated_phy_loopback(adapter) &&
+ count++ < 10);
+ if (count < 11)
+ return 0;
+ }
+ break;
+
+ case e1000_82544:
+ case e1000_82540:
+ case e1000_82545:
+ case e1000_82545_rev_3:
+ case e1000_82546:
+ case e1000_82546_rev_3:
+ case e1000_82541:
+ case e1000_82541_rev_2:
+ case e1000_82547:
+ case e1000_82547_rev_2:
+ case e1000_82571:
+ case e1000_82572:
+ case e1000_82573:
+ case e1000_80003es2lan:
+ case e1000_ich8lan:
+ return e1000_integrated_phy_loopback(adapter);
+ break;
+
+ default:
+ /* Default PHY loopback work is to read the MII
+ * control register and assert bit 14 (loopback mode).
+ */
+ e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg);
+ phy_reg |= MII_CR_LOOPBACK;
+ e1000_write_phy_reg(hw, PHY_CTRL, phy_reg);
+ return 0;
+ break;
+ }
+
+ return 8;
+}
+
+static int e1000_setup_loopback_test(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 rctl;
+
+ if (hw->media_type == e1000_media_type_fiber ||
+ hw->media_type == e1000_media_type_internal_serdes) {
+ switch (hw->mac_type) {
+ case e1000_82545:
+ case e1000_82546:
+ case e1000_82545_rev_3:
+ case e1000_82546_rev_3:
+ return e1000_set_phy_loopback(adapter);
+ break;
+ case e1000_82571:
+ case e1000_82572:
+#define E1000_SERDES_LB_ON 0x410
+ e1000_set_phy_loopback(adapter);
+ ew32(SCTL, E1000_SERDES_LB_ON);
+ msleep(10);
+ return 0;
+ break;
+ default:
+ rctl = er32(RCTL);
+ rctl |= E1000_RCTL_LBM_TCVR;
+ ew32(RCTL, rctl);
+ return 0;
+ }
+ } else if (hw->media_type == e1000_media_type_copper)
+ return e1000_set_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_82571:
+ case e1000_82572:
+ if (hw->media_type == e1000_media_type_fiber ||
+ hw->media_type == e1000_media_type_internal_serdes) {
+#define E1000_SERDES_LB_OFF 0x400
+ ew32(SCTL, E1000_SERDES_LB_OFF);
+ msleep(10);
+ break;
+ }
+ /* Fall Through */
+ case e1000_82545:
+ case e1000_82546:
+ case e1000_82545_rev_3:
+ case e1000_82546_rev_3:
+ default:
+ hw->autoneg = true;
+ if (hw->phy_type == e1000_phy_gg82563)
+ e1000_write_phy_reg(hw,
+ GG82563_PHY_KMRN_MODE_CTRL,
+ 0x180);
+ e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg);
+ if (phy_reg & MII_CR_LOOPBACK) {
+ phy_reg &= ~MII_CR_LOOPBACK;
+ e1000_write_phy_reg(hw, PHY_CTRL, phy_reg);
+ e1000_phy_reset(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_hw *hw = &adapter->hw;
+ struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
+ struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
+ struct pci_dev *pdev = adapter->pdev;
+ int i, j, k, l, lc, good_cnt, ret_val=0;
+ unsigned long time;
+
+ ew32(RDT, rxdr->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 (rxdr->count <= txdr->count)
+ lc = ((txdr->count / 64) * 2) + 1;
+ else
+ lc = ((rxdr->count / 64) * 2) + 1;
+
+ k = l = 0;
+ for (j = 0; j <= lc; j++) { /* loop count loop */
+ for (i = 0; i < 64; i++) { /* send the packets */
+ e1000_create_lbtest_frame(txdr->buffer_info[i].skb,
+ 1024);
+ pci_dma_sync_single_for_device(pdev,
+ txdr->buffer_info[k].dma,
+ txdr->buffer_info[k].length,
+ PCI_DMA_TODEVICE);
+ if (unlikely(++k == txdr->count)) k = 0;
+ }
+ ew32(TDT, k);
+ msleep(200);
+ time = jiffies; /* set the start time for the receive */
+ good_cnt = 0;
+ do { /* receive the sent packets */
+ pci_dma_sync_single_for_cpu(pdev,
+ rxdr->buffer_info[l].dma,
+ rxdr->buffer_info[l].length,
+ PCI_DMA_FROMDEVICE);
+
+ ret_val = e1000_check_lbtest_frame(
+ rxdr->buffer_info[l].skb,
+ 1024);
+ if (!ret_val)
+ good_cnt++;
+ if (unlikely(++l == rxdr->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 && jiffies < (time + 20));
+ if (good_cnt != 64) {
+ ret_val = 13; /* ret_val is the same as mis-compare */
+ break;
+ }
+ if (jiffies >= (time + 2)) {
+ ret_val = 14; /* error code for time out error */
+ break;
+ }
+ } /* end loop count loop */
+ 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 (e1000_check_phy_reset_block(hw)) {
+ DPRINTK(DRV, 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->media_type == e1000_media_type_internal_serdes) {
+ int i = 0;
+ hw->serdes_link_down = true;
+
+ /* On some blade server designs, link establishment
+ * could take as long as 2-3 minutes */
+ do {
+ e1000_check_for_link(hw);
+ if (!hw->serdes_link_down)
+ return *data;
+ msleep(20);
+ } while (i++ < 3750);
+
+ *data = 1;
+ } else {
+ e1000_check_for_link(hw);
+ if (hw->autoneg) /* if auto_neg is set wait for it */
+ msleep(4000);
+
+ if (!(er32(STATUS) & E1000_STATUS_LU)) {
+ *data = 1;
+ }
+ }
+ return *data;
+}
+
+static int e1000_get_sset_count(struct net_device *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);
+ struct e1000_hw *hw = &adapter->hw;
+ bool if_running = netif_running(netdev);
+
+ set_bit(__E1000_TESTING, &adapter->flags);
+ if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
+ /* Offline tests */
+
+ /* save speed, duplex, autoneg settings */
+ u16 autoneg_advertised = hw->autoneg_advertised;
+ u8 forced_speed_duplex = hw->forced_speed_duplex;
+ u8 autoneg = hw->autoneg;
+
+ DPRINTK(HW, INFO, "offline testing starting\n");
+
+ /* Link test performed before hardware reset so autoneg doesn't
+ * interfere with test result */
+ if (e1000_link_test(adapter, &data[4]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+
+ if (if_running)
+ /* indicate we're in test mode */
+ dev_close(netdev);
+ else
+ e1000_reset(adapter);
+
+ if (e1000_reg_test(adapter, &data[0]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+
+ e1000_reset(adapter);
+ if (e1000_eeprom_test(adapter, &data[1]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+
+ e1000_reset(adapter);
+ if (e1000_intr_test(adapter, &data[2]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+
+ e1000_reset(adapter);
+ /* make sure the phy is powered up */
+ e1000_power_up_phy(adapter);
+ if (e1000_loopback_test(adapter, &data[3]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+
+ /* restore speed, duplex, autoneg settings */
+ hw->autoneg_advertised = autoneg_advertised;
+ hw->forced_speed_duplex = forced_speed_duplex;
+ hw->autoneg = autoneg;
+
+ e1000_reset(adapter);
+ clear_bit(__E1000_TESTING, &adapter->flags);
+ if (if_running)
+ dev_open(netdev);
+ } else {
+ DPRINTK(HW, INFO, "online testing starting\n");
+ /* Online tests */
+ if (e1000_link_test(adapter, &data[4]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+
+ /* Online tests aren't run; pass by default */
+ data[0] = 0;
+ data[1] = 0;
+ data[2] = 0;
+ data[3] = 0;
+
+ clear_bit(__E1000_TESTING, &adapter->flags);
+ }
+ msleep_interruptible(4 * 1000);
+}
+
+static int e1000_wol_exclusion(struct e1000_adapter *adapter,
+ struct ethtool_wolinfo *wol)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ int retval = 1; /* fail by default */
+
+ switch (hw->device_id) {
+ case E1000_DEV_ID_82542:
+ case E1000_DEV_ID_82543GC_FIBER:
+ case E1000_DEV_ID_82543GC_COPPER:
+ case E1000_DEV_ID_82544EI_FIBER:
+ case E1000_DEV_ID_82546EB_QUAD_COPPER:
+ case E1000_DEV_ID_82545EM_FIBER:
+ case E1000_DEV_ID_82545EM_COPPER:
+ case E1000_DEV_ID_82546GB_QUAD_COPPER:
+ case E1000_DEV_ID_82546GB_PCIE:
+ case E1000_DEV_ID_82571EB_SERDES_QUAD:
+ /* these don't support WoL at all */
+ wol->supported = 0;
+ break;
+ case E1000_DEV_ID_82546EB_FIBER:
+ case E1000_DEV_ID_82546GB_FIBER:
+ case E1000_DEV_ID_82571EB_FIBER:
+ case E1000_DEV_ID_82571EB_SERDES:
+ case E1000_DEV_ID_82571EB_COPPER:
+ /* Wake events not supported on port B */
+ if (er32(STATUS) & E1000_STATUS_FUNC_1) {
+ wol->supported = 0;
+ break;
+ }
+ /* return success for non excluded adapter ports */
+ retval = 0;
+ break;
+ case E1000_DEV_ID_82571EB_QUAD_COPPER:
+ case E1000_DEV_ID_82571EB_QUAD_FIBER:
+ case E1000_DEV_ID_82571EB_QUAD_COPPER_LOWPROFILE:
+ case E1000_DEV_ID_82571PT_QUAD_COPPER:
+ case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
+ /* quad port adapters only support WoL on port A */
+ if (!adapter->quad_port_a) {
+ wol->supported = 0;
+ break;
+ }
+ /* return success for non excluded adapter ports */
+ retval = 0;
+ break;
+ default:
+ /* dual port cards only support WoL on port A from now on
+ * unless it was enabled in the eeprom for port B
+ * so exclude FUNC_1 ports from having WoL enabled */
+ if (er32(STATUS) & E1000_STATUS_FUNC_1 &&
+ !adapter->eeprom_wol) {
+ wol->supported = 0;
+ break;
+ }
+
+ retval = 0;
+ }
+
+ return retval;
+}
+
+static void e1000_get_wol(struct net_device *netdev,
+ struct ethtool_wolinfo *wol)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+
+ wol->supported = WAKE_UCAST | WAKE_MCAST |
+ WAKE_BCAST | WAKE_MAGIC;
+ wol->wolopts = 0;
+
+ /* this function will set ->supported = 0 and return 1 if wol is not
+ * supported by this hardware */
+ if (e1000_wol_exclusion(adapter, wol) ||
+ !device_can_wakeup(&adapter->pdev->dev))
+ return;
+
+ /* apply any specific unsupported masks here */
+ switch (hw->device_id) {
+ case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
+ /* KSP3 does not suppport UCAST wake-ups */
+ wol->supported &= ~WAKE_UCAST;
+
+ if (adapter->wol & E1000_WUFC_EX)
+ DPRINTK(DRV, ERR, "Interface does not support "
+ "directed (unicast) frame wake-up packets\n");
+ break;
+ default:
+ break;
+ }
+
+ 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;
+
+ return;
+}
+
+static int e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+
+ if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE))
+ return -EOPNOTSUPP;
+
+ if (e1000_wol_exclusion(adapter, wol) ||
+ !device_can_wakeup(&adapter->pdev->dev))
+ return wol->wolopts ? -EOPNOTSUPP : 0;
+
+ switch (hw->device_id) {
+ case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
+ if (wol->wolopts & WAKE_UCAST) {
+ DPRINTK(DRV, ERR, "Interface does not support "
+ "directed (unicast) frame wake-up packets\n");
+ return -EOPNOTSUPP;
+ }
+ break;
+ default:
+ break;
+ }
+
+ /* 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;
+
+ device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
+
+ return 0;
+}
+
+/* toggle LED 4 times per second = 2 "blinks" per second */
+#define E1000_ID_INTERVAL (HZ/4)
+
+/* bit defines for adapter->led_status */
+#define E1000_LED_ON 0
+
+static void e1000_led_blink_callback(unsigned long data)
+{
+ struct e1000_adapter *adapter = (struct e1000_adapter *) data;
+ struct e1000_hw *hw = &adapter->hw;
+
+ if (test_and_change_bit(E1000_LED_ON, &adapter->led_status))
+ e1000_led_off(hw);
+ else
+ e1000_led_on(hw);
+
+ mod_timer(&adapter->blink_timer, jiffies + E1000_ID_INTERVAL);
+}
+
+static int e1000_phys_id(struct net_device *netdev, u32 data)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+
+ if (!data)
+ data = INT_MAX;
+
+ if (hw->mac_type < e1000_82571) {
+ if (!adapter->blink_timer.function) {
+ init_timer(&adapter->blink_timer);
+ adapter->blink_timer.function = e1000_led_blink_callback;
+ adapter->blink_timer.data = (unsigned long)adapter;
+ }
+ e1000_setup_led(hw);
+ mod_timer(&adapter->blink_timer, jiffies);
+ msleep_interruptible(data * 1000);
+ del_timer_sync(&adapter->blink_timer);
+ } else if (hw->phy_type == e1000_phy_ife) {
+ if (!adapter->blink_timer.function) {
+ init_timer(&adapter->blink_timer);
+ adapter->blink_timer.function = e1000_led_blink_callback;
+ adapter->blink_timer.data = (unsigned long)adapter;
+ }
+ mod_timer(&adapter->blink_timer, jiffies);
+ msleep_interruptible(data * 1000);
+ del_timer_sync(&adapter->blink_timer);
+ e1000_write_phy_reg(&(adapter->hw), IFE_PHY_SPECIAL_CONTROL_LED, 0);
+ } else {
+ e1000_blink_led_start(hw);
+ msleep_interruptible(data * 1000);
+ }
+
+ e1000_led_off(hw);
+ clear_bit(E1000_LED_ON, &adapter->led_status);
+ e1000_cleanup_led(hw);
+
+ return 0;
+}
+
+static int e1000_nway_reset(struct net_device *netdev)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ if (netif_running(netdev))
+ e1000_reinit_locked(adapter);
+ return 0;
+}
+
+static void e1000_get_ethtool_stats(struct net_device *netdev,
+ struct ethtool_stats *stats, u64 *data)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ int i;
+
+ e1000_update_stats(adapter);
+ for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
+ char *p = (char *)adapter+e1000_gstrings_stats[i].stat_offset;
+ data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
+ sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
+ }
+/* BUG_ON(i != E1000_STATS_LEN); */
+}
+
+static void e1000_get_strings(struct net_device *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;
+ }
+/* BUG_ON(p - data != E1000_STATS_LEN * ETH_GSTRING_LEN); */
+ break;
+ }
+}
+
+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,
+ .get_rx_csum = e1000_get_rx_csum,
+ .set_rx_csum = e1000_set_rx_csum,
+ .get_tx_csum = e1000_get_tx_csum,
+ .set_tx_csum = e1000_set_tx_csum,
+ .set_sg = ethtool_op_set_sg,
+ .set_tso = e1000_set_tso,
+ .self_test = e1000_diag_test,
+ .get_strings = e1000_get_strings,
+ .phys_id = e1000_phys_id,
+ .get_ethtool_stats = e1000_get_ethtool_stats,
+ .get_sset_count = e1000_get_sset_count,
+};
+
+void e1000_set_ethtool_ops(struct net_device *netdev)
+{
+ SET_ETHTOOL_OPS(netdev, &e1000_ethtool_ops);
+}
--- a/devices/e1000/e1000_main-2.6.29-org.c Tue Jan 10 11:30:41 2012 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,4849 +0,0 @@
-/*******************************************************************************
-
- Intel PRO/1000 Linux driver
- Copyright(c) 1999 - 2006 Intel Corporation.
-
- This program is free software; you can redistribute it and/or modify it
- under the terms and conditions of the GNU General Public License,
- version 2, as published by the Free Software Foundation.
-
- This program is distributed in the hope it will be useful, but WITHOUT
- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- more details.
-
- You should have received a copy of the GNU General Public License along with
- this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
-
- 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
-
-*******************************************************************************/
-
-#include "e1000.h"
-#include <net/ip6_checksum.h>
-
-char e1000_driver_name[] = "e1000";
-static char e1000_driver_string[] = "Intel(R) PRO/1000 Network Driver";
-#define DRV_VERSION "7.3.21-k3-NAPI"
-const char e1000_driver_version[] = DRV_VERSION;
-static const char e1000_copyright[] = "Copyright (c) 1999-2006 Intel Corporation.";
-
-/* e1000_pci_tbl - PCI Device ID Table
- *
- * Last entry must be all 0s
- *
- * Macro expands to...
- * {PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)}
- */
-static struct pci_device_id e1000_pci_tbl[] = {
- INTEL_E1000_ETHERNET_DEVICE(0x1000),
- INTEL_E1000_ETHERNET_DEVICE(0x1001),
- INTEL_E1000_ETHERNET_DEVICE(0x1004),
- INTEL_E1000_ETHERNET_DEVICE(0x1008),
- INTEL_E1000_ETHERNET_DEVICE(0x1009),
- INTEL_E1000_ETHERNET_DEVICE(0x100C),
- INTEL_E1000_ETHERNET_DEVICE(0x100D),
- INTEL_E1000_ETHERNET_DEVICE(0x100E),
- INTEL_E1000_ETHERNET_DEVICE(0x100F),
- INTEL_E1000_ETHERNET_DEVICE(0x1010),
- INTEL_E1000_ETHERNET_DEVICE(0x1011),
- INTEL_E1000_ETHERNET_DEVICE(0x1012),
- INTEL_E1000_ETHERNET_DEVICE(0x1013),
- INTEL_E1000_ETHERNET_DEVICE(0x1014),
- INTEL_E1000_ETHERNET_DEVICE(0x1015),
- INTEL_E1000_ETHERNET_DEVICE(0x1016),
- INTEL_E1000_ETHERNET_DEVICE(0x1017),
- INTEL_E1000_ETHERNET_DEVICE(0x1018),
- INTEL_E1000_ETHERNET_DEVICE(0x1019),
- INTEL_E1000_ETHERNET_DEVICE(0x101A),
- INTEL_E1000_ETHERNET_DEVICE(0x101D),
- INTEL_E1000_ETHERNET_DEVICE(0x101E),
- INTEL_E1000_ETHERNET_DEVICE(0x1026),
- INTEL_E1000_ETHERNET_DEVICE(0x1027),
- INTEL_E1000_ETHERNET_DEVICE(0x1028),
- INTEL_E1000_ETHERNET_DEVICE(0x1075),
- INTEL_E1000_ETHERNET_DEVICE(0x1076),
- INTEL_E1000_ETHERNET_DEVICE(0x1077),
- INTEL_E1000_ETHERNET_DEVICE(0x1078),
- INTEL_E1000_ETHERNET_DEVICE(0x1079),
- INTEL_E1000_ETHERNET_DEVICE(0x107A),
- INTEL_E1000_ETHERNET_DEVICE(0x107B),
- INTEL_E1000_ETHERNET_DEVICE(0x107C),
- INTEL_E1000_ETHERNET_DEVICE(0x108A),
- INTEL_E1000_ETHERNET_DEVICE(0x1099),
- INTEL_E1000_ETHERNET_DEVICE(0x10B5),
- /* required last entry */
- {0,}
-};
-
-MODULE_DEVICE_TABLE(pci, e1000_pci_tbl);
-
-int e1000_up(struct e1000_adapter *adapter);
-void e1000_down(struct e1000_adapter *adapter);
-void e1000_reinit_locked(struct e1000_adapter *adapter);
-void e1000_reset(struct e1000_adapter *adapter);
-int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx);
-int e1000_setup_all_tx_resources(struct e1000_adapter *adapter);
-int e1000_setup_all_rx_resources(struct e1000_adapter *adapter);
-void e1000_free_all_tx_resources(struct e1000_adapter *adapter);
-void e1000_free_all_rx_resources(struct e1000_adapter *adapter);
-static int e1000_setup_tx_resources(struct e1000_adapter *adapter,
- struct e1000_tx_ring *txdr);
-static int e1000_setup_rx_resources(struct e1000_adapter *adapter,
- struct e1000_rx_ring *rxdr);
-static void e1000_free_tx_resources(struct e1000_adapter *adapter,
- struct e1000_tx_ring *tx_ring);
-static void e1000_free_rx_resources(struct e1000_adapter *adapter,
- struct e1000_rx_ring *rx_ring);
-void e1000_update_stats(struct e1000_adapter *adapter);
-
-static int e1000_init_module(void);
-static void e1000_exit_module(void);
-static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
-static void __devexit e1000_remove(struct pci_dev *pdev);
-static int e1000_alloc_queues(struct e1000_adapter *adapter);
-static int e1000_sw_init(struct e1000_adapter *adapter);
-static int e1000_open(struct net_device *netdev);
-static int e1000_close(struct net_device *netdev);
-static void e1000_configure_tx(struct e1000_adapter *adapter);
-static void e1000_configure_rx(struct e1000_adapter *adapter);
-static void e1000_setup_rctl(struct e1000_adapter *adapter);
-static void e1000_clean_all_tx_rings(struct e1000_adapter *adapter);
-static void e1000_clean_all_rx_rings(struct e1000_adapter *adapter);
-static void e1000_clean_tx_ring(struct e1000_adapter *adapter,
- struct e1000_tx_ring *tx_ring);
-static void e1000_clean_rx_ring(struct e1000_adapter *adapter,
- struct e1000_rx_ring *rx_ring);
-static void e1000_set_rx_mode(struct net_device *netdev);
-static void e1000_update_phy_info(unsigned long data);
-static void e1000_watchdog(unsigned long data);
-static void e1000_82547_tx_fifo_stall(unsigned long data);
-static int e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev);
-static struct net_device_stats * e1000_get_stats(struct net_device *netdev);
-static int e1000_change_mtu(struct net_device *netdev, int new_mtu);
-static int e1000_set_mac(struct net_device *netdev, void *p);
-static irqreturn_t e1000_intr(int irq, void *data);
-static irqreturn_t e1000_intr_msi(int irq, void *data);
-static bool e1000_clean_tx_irq(struct e1000_adapter *adapter,
- struct e1000_tx_ring *tx_ring);
-static int e1000_clean(struct napi_struct *napi, int budget);
-static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
- struct e1000_rx_ring *rx_ring,
- int *work_done, int work_to_do);
-static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter,
- struct e1000_rx_ring *rx_ring,
- int cleaned_count);
-static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd);
-static int e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr,
- int cmd);
-static void e1000_enter_82542_rst(struct e1000_adapter *adapter);
-static void e1000_leave_82542_rst(struct e1000_adapter *adapter);
-static void e1000_tx_timeout(struct net_device *dev);
-static void e1000_reset_task(struct work_struct *work);
-static void e1000_smartspeed(struct e1000_adapter *adapter);
-static int e1000_82547_fifo_workaround(struct e1000_adapter *adapter,
- struct sk_buff *skb);
-
-static void e1000_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp);
-static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid);
-static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid);
-static void e1000_restore_vlan(struct e1000_adapter *adapter);
-
-static int e1000_suspend(struct pci_dev *pdev, pm_message_t state);
-#ifdef CONFIG_PM
-static int e1000_resume(struct pci_dev *pdev);
-#endif
-static void e1000_shutdown(struct pci_dev *pdev);
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-/* for netdump / net console */
-static void e1000_netpoll (struct net_device *netdev);
-#endif
-
-#define COPYBREAK_DEFAULT 256
-static unsigned int copybreak __read_mostly = COPYBREAK_DEFAULT;
-module_param(copybreak, uint, 0644);
-MODULE_PARM_DESC(copybreak,
- "Maximum size of packet that is copied to a new buffer on receive");
-
-static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev,
- pci_channel_state_t state);
-static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev);
-static void e1000_io_resume(struct pci_dev *pdev);
-
-static struct pci_error_handlers e1000_err_handler = {
- .error_detected = e1000_io_error_detected,
- .slot_reset = e1000_io_slot_reset,
- .resume = e1000_io_resume,
-};
-
-static struct pci_driver e1000_driver = {
- .name = e1000_driver_name,
- .id_table = e1000_pci_tbl,
- .probe = e1000_probe,
- .remove = __devexit_p(e1000_remove),
-#ifdef CONFIG_PM
- /* Power Managment Hooks */
- .suspend = e1000_suspend,
- .resume = e1000_resume,
-#endif
- .shutdown = e1000_shutdown,
- .err_handler = &e1000_err_handler
-};
-
-MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>");
-MODULE_DESCRIPTION("Intel(R) PRO/1000 Network Driver");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(DRV_VERSION);
-
-static int debug = NETIF_MSG_DRV | NETIF_MSG_PROBE;
-module_param(debug, int, 0);
-MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
-
-/**
- * e1000_init_module - Driver Registration Routine
- *
- * e1000_init_module is the first routine called when the driver is
- * loaded. All it does is register with the PCI subsystem.
- **/
-
-static int __init e1000_init_module(void)
-{
- int ret;
- printk(KERN_INFO "%s - version %s\n",
- e1000_driver_string, e1000_driver_version);
-
- printk(KERN_INFO "%s\n", e1000_copyright);
-
- ret = pci_register_driver(&e1000_driver);
- if (copybreak != COPYBREAK_DEFAULT) {
- if (copybreak == 0)
- printk(KERN_INFO "e1000: copybreak disabled\n");
- else
- printk(KERN_INFO "e1000: copybreak enabled for "
- "packets <= %u bytes\n", copybreak);
- }
- return ret;
-}
-
-module_init(e1000_init_module);
-
-/**
- * e1000_exit_module - Driver Exit Cleanup Routine
- *
- * e1000_exit_module is called just before the driver is removed
- * from memory.
- **/
-
-static void __exit e1000_exit_module(void)
-{
- pci_unregister_driver(&e1000_driver);
-}
-
-module_exit(e1000_exit_module);
-
-static int e1000_request_irq(struct e1000_adapter *adapter)
-{
- struct e1000_hw *hw = &adapter->hw;
- struct net_device *netdev = adapter->netdev;
- irq_handler_t handler = e1000_intr;
- int irq_flags = IRQF_SHARED;
- int err;
-
- if (hw->mac_type >= e1000_82571) {
- adapter->have_msi = !pci_enable_msi(adapter->pdev);
- if (adapter->have_msi) {
- handler = e1000_intr_msi;
- irq_flags = 0;
- }
- }
-
- err = request_irq(adapter->pdev->irq, handler, irq_flags, netdev->name,
- netdev);
- if (err) {
- if (adapter->have_msi)
- pci_disable_msi(adapter->pdev);
- DPRINTK(PROBE, ERR,
- "Unable to allocate interrupt Error: %d\n", err);
- }
-
- return err;
-}
-
-static void e1000_free_irq(struct e1000_adapter *adapter)
-{
- struct net_device *netdev = adapter->netdev;
-
- free_irq(adapter->pdev->irq, netdev);
-
- if (adapter->have_msi)
- pci_disable_msi(adapter->pdev);
-}
-
-/**
- * e1000_irq_disable - Mask off interrupt generation on the NIC
- * @adapter: board private structure
- **/
-
-static void e1000_irq_disable(struct e1000_adapter *adapter)
-{
- struct e1000_hw *hw = &adapter->hw;
-
- ew32(IMC, ~0);
- E1000_WRITE_FLUSH();
- synchronize_irq(adapter->pdev->irq);
-}
-
-/**
- * e1000_irq_enable - Enable default interrupt generation settings
- * @adapter: board private structure
- **/
-
-static void e1000_irq_enable(struct e1000_adapter *adapter)
-{
- struct e1000_hw *hw = &adapter->hw;
-
- ew32(IMS, IMS_ENABLE_MASK);
- E1000_WRITE_FLUSH();
-}
-
-static void e1000_update_mng_vlan(struct e1000_adapter *adapter)
-{
- struct e1000_hw *hw = &adapter->hw;
- struct net_device *netdev = adapter->netdev;
- u16 vid = hw->mng_cookie.vlan_id;
- u16 old_vid = adapter->mng_vlan_id;
- if (adapter->vlgrp) {
- if (!vlan_group_get_device(adapter->vlgrp, vid)) {
- if (hw->mng_cookie.status &
- E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) {
- e1000_vlan_rx_add_vid(netdev, vid);
- adapter->mng_vlan_id = vid;
- } else
- adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
-
- if ((old_vid != (u16)E1000_MNG_VLAN_NONE) &&
- (vid != old_vid) &&
- !vlan_group_get_device(adapter->vlgrp, old_vid))
- e1000_vlan_rx_kill_vid(netdev, old_vid);
- } else
- adapter->mng_vlan_id = vid;
- }
-}
-
-/**
- * e1000_release_hw_control - release control of the h/w to f/w
- * @adapter: address of board private structure
- *
- * e1000_release_hw_control resets {CTRL_EXT|FWSM}:DRV_LOAD bit.
- * For ASF and Pass Through versions of f/w this means that the
- * driver is no longer loaded. For AMT version (only with 82573) i
- * of the f/w this means that the network i/f is closed.
- *
- **/
-
-static void e1000_release_hw_control(struct e1000_adapter *adapter)
-{
- u32 ctrl_ext;
- u32 swsm;
- struct e1000_hw *hw = &adapter->hw;
-
- /* Let firmware taken over control of h/w */
- switch (hw->mac_type) {
- case e1000_82573:
- swsm = er32(SWSM);
- ew32(SWSM, swsm & ~E1000_SWSM_DRV_LOAD);
- break;
- case e1000_82571:
- case e1000_82572:
- case e1000_80003es2lan:
- case e1000_ich8lan:
- ctrl_ext = er32(CTRL_EXT);
- ew32(CTRL_EXT, ctrl_ext & ~E1000_CTRL_EXT_DRV_LOAD);
- break;
- default:
- break;
- }
-}
-
-/**
- * e1000_get_hw_control - get control of the h/w from f/w
- * @adapter: address of board private structure
- *
- * e1000_get_hw_control sets {CTRL_EXT|FWSM}:DRV_LOAD bit.
- * For ASF and Pass Through versions of f/w this means that
- * the driver is loaded. For AMT version (only with 82573)
- * of the f/w this means that the network i/f is open.
- *
- **/
-
-static void e1000_get_hw_control(struct e1000_adapter *adapter)
-{
- u32 ctrl_ext;
- u32 swsm;
- struct e1000_hw *hw = &adapter->hw;
-
- /* Let firmware know the driver has taken over */
- switch (hw->mac_type) {
- case e1000_82573:
- swsm = er32(SWSM);
- ew32(SWSM, swsm | E1000_SWSM_DRV_LOAD);
- break;
- case e1000_82571:
- case e1000_82572:
- case e1000_80003es2lan:
- case e1000_ich8lan:
- ctrl_ext = er32(CTRL_EXT);
- ew32(CTRL_EXT, ctrl_ext | E1000_CTRL_EXT_DRV_LOAD);
- break;
- default:
- break;
- }
-}
-
-static void e1000_init_manageability(struct e1000_adapter *adapter)
-{
- struct e1000_hw *hw = &adapter->hw;
-
- if (adapter->en_mng_pt) {
- u32 manc = er32(MANC);
-
- /* disable hardware interception of ARP */
- manc &= ~(E1000_MANC_ARP_EN);
-
- /* enable receiving management packets to the host */
- /* this will probably generate destination unreachable messages
- * from the host OS, but the packets will be handled on SMBUS */
- if (hw->has_manc2h) {
- u32 manc2h = er32(MANC2H);
-
- manc |= E1000_MANC_EN_MNG2HOST;
-#define E1000_MNG2HOST_PORT_623 (1 << 5)
-#define E1000_MNG2HOST_PORT_664 (1 << 6)
- manc2h |= E1000_MNG2HOST_PORT_623;
- manc2h |= E1000_MNG2HOST_PORT_664;
- ew32(MANC2H, manc2h);
- }
-
- ew32(MANC, manc);
- }
-}
-
-static void e1000_release_manageability(struct e1000_adapter *adapter)
-{
- struct e1000_hw *hw = &adapter->hw;
-
- if (adapter->en_mng_pt) {
- u32 manc = er32(MANC);
-
- /* re-enable hardware interception of ARP */
- manc |= E1000_MANC_ARP_EN;
-
- if (hw->has_manc2h)
- manc &= ~E1000_MANC_EN_MNG2HOST;
-
- /* don't explicitly have to mess with MANC2H since
- * MANC has an enable disable that gates MANC2H */
-
- ew32(MANC, manc);
- }
-}
-
-/**
- * e1000_configure - configure the hardware for RX and TX
- * @adapter = private board structure
- **/
-static void e1000_configure(struct e1000_adapter *adapter)
-{
- struct net_device *netdev = adapter->netdev;
- int i;
-
- e1000_set_rx_mode(netdev);
-
- e1000_restore_vlan(adapter);
- e1000_init_manageability(adapter);
-
- e1000_configure_tx(adapter);
- e1000_setup_rctl(adapter);
- e1000_configure_rx(adapter);
- /* call E1000_DESC_UNUSED which always leaves
- * at least 1 descriptor unused to make sure
- * next_to_use != next_to_clean */
- for (i = 0; i < adapter->num_rx_queues; i++) {
- struct e1000_rx_ring *ring = &adapter->rx_ring[i];
- adapter->alloc_rx_buf(adapter, ring,
- E1000_DESC_UNUSED(ring));
- }
-
- adapter->tx_queue_len = netdev->tx_queue_len;
-}
-
-int e1000_up(struct e1000_adapter *adapter)
-{
- struct e1000_hw *hw = &adapter->hw;
-
- /* hardware has been reset, we need to reload some things */
- e1000_configure(adapter);
-
- clear_bit(__E1000_DOWN, &adapter->flags);
-
- napi_enable(&adapter->napi);
-
- e1000_irq_enable(adapter);
-
- /* fire a link change interrupt to start the watchdog */
- ew32(ICS, E1000_ICS_LSC);
- return 0;
-}
-
-/**
- * e1000_power_up_phy - restore link in case the phy was powered down
- * @adapter: address of board private structure
- *
- * The phy may be powered down to save power and turn off link when the
- * driver is unloaded and wake on lan is not enabled (among others)
- * *** this routine MUST be followed by a call to e1000_reset ***
- *
- **/
-
-void e1000_power_up_phy(struct e1000_adapter *adapter)
-{
- struct e1000_hw *hw = &adapter->hw;
- u16 mii_reg = 0;
-
- /* Just clear the power down bit to wake the phy back up */
- if (hw->media_type == e1000_media_type_copper) {
- /* according to the manual, the phy will retain its
- * settings across a power-down/up cycle */
- e1000_read_phy_reg(hw, PHY_CTRL, &mii_reg);
- mii_reg &= ~MII_CR_POWER_DOWN;
- e1000_write_phy_reg(hw, PHY_CTRL, mii_reg);
- }
-}
-
-static void e1000_power_down_phy(struct e1000_adapter *adapter)
-{
- struct e1000_hw *hw = &adapter->hw;
-
- /* Power down the PHY so no link is implied when interface is down *
- * The PHY cannot be powered down if any of the following is true *
- * (a) WoL is enabled
- * (b) AMT is active
- * (c) SoL/IDER session is active */
- if (!adapter->wol && hw->mac_type >= e1000_82540 &&
- hw->media_type == e1000_media_type_copper) {
- u16 mii_reg = 0;
-
- switch (hw->mac_type) {
- case e1000_82540:
- case e1000_82545:
- case e1000_82545_rev_3:
- case e1000_82546:
- case e1000_82546_rev_3:
- case e1000_82541:
- case e1000_82541_rev_2:
- case e1000_82547:
- case e1000_82547_rev_2:
- if (er32(MANC) & E1000_MANC_SMBUS_EN)
- goto out;
- break;
- case e1000_82571:
- case e1000_82572:
- case e1000_82573:
- case e1000_80003es2lan:
- case e1000_ich8lan:
- if (e1000_check_mng_mode(hw) ||
- e1000_check_phy_reset_block(hw))
- goto out;
- break;
- default:
- goto out;
- }
- e1000_read_phy_reg(hw, PHY_CTRL, &mii_reg);
- mii_reg |= MII_CR_POWER_DOWN;
- e1000_write_phy_reg(hw, PHY_CTRL, mii_reg);
- mdelay(1);
- }
-out:
- return;
-}
-
-void e1000_down(struct e1000_adapter *adapter)
-{
- struct net_device *netdev = adapter->netdev;
-
- /* signal that we're down so the interrupt handler does not
- * reschedule our watchdog timer */
- set_bit(__E1000_DOWN, &adapter->flags);
-
- napi_disable(&adapter->napi);
-
- e1000_irq_disable(adapter);
-
- del_timer_sync(&adapter->tx_fifo_stall_timer);
- del_timer_sync(&adapter->watchdog_timer);
- del_timer_sync(&adapter->phy_info_timer);
-
- netdev->tx_queue_len = adapter->tx_queue_len;
- adapter->link_speed = 0;
- adapter->link_duplex = 0;
- netif_carrier_off(netdev);
- netif_stop_queue(netdev);
-
- e1000_reset(adapter);
- e1000_clean_all_tx_rings(adapter);
- e1000_clean_all_rx_rings(adapter);
-}
-
-void e1000_reinit_locked(struct e1000_adapter *adapter)
-{
- WARN_ON(in_interrupt());
- while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
- msleep(1);
- e1000_down(adapter);
- e1000_up(adapter);
- clear_bit(__E1000_RESETTING, &adapter->flags);
-}
-
-void e1000_reset(struct e1000_adapter *adapter)
-{
- struct e1000_hw *hw = &adapter->hw;
- u32 pba = 0, tx_space, min_tx_space, min_rx_space;
- u16 fc_high_water_mark = E1000_FC_HIGH_DIFF;
- bool legacy_pba_adjust = false;
-
- /* Repartition Pba for greater than 9k mtu
- * To take effect CTRL.RST is required.
- */
-
- switch (hw->mac_type) {
- case e1000_82542_rev2_0:
- case e1000_82542_rev2_1:
- case e1000_82543:
- case e1000_82544:
- case e1000_82540:
- case e1000_82541:
- case e1000_82541_rev_2:
- legacy_pba_adjust = true;
- pba = E1000_PBA_48K;
- break;
- case e1000_82545:
- case e1000_82545_rev_3:
- case e1000_82546:
- case e1000_82546_rev_3:
- pba = E1000_PBA_48K;
- break;
- case e1000_82547:
- case e1000_82547_rev_2:
- legacy_pba_adjust = true;
- pba = E1000_PBA_30K;
- break;
- case e1000_82571:
- case e1000_82572:
- case e1000_80003es2lan:
- pba = E1000_PBA_38K;
- break;
- case e1000_82573:
- pba = E1000_PBA_20K;
- break;
- case e1000_ich8lan:
- pba = E1000_PBA_8K;
- case e1000_undefined:
- case e1000_num_macs:
- break;
- }
-
- if (legacy_pba_adjust) {
- if (adapter->netdev->mtu > E1000_RXBUFFER_8192)
- pba -= 8; /* allocate more FIFO for Tx */
-
- if (hw->mac_type == e1000_82547) {
- adapter->tx_fifo_head = 0;
- adapter->tx_head_addr = pba << E1000_TX_HEAD_ADDR_SHIFT;
- adapter->tx_fifo_size =
- (E1000_PBA_40K - pba) << E1000_PBA_BYTES_SHIFT;
- atomic_set(&adapter->tx_fifo_stall, 0);
- }
- } else if (hw->max_frame_size > MAXIMUM_ETHERNET_FRAME_SIZE) {
- /* adjust PBA for jumbo frames */
- ew32(PBA, pba);
-
- /* To maintain wire speed transmits, the Tx FIFO should be
- * large enough to accomodate two full transmit packets,
- * rounded up to the next 1KB and expressed in KB. Likewise,
- * the Rx FIFO should be large enough to accomodate at least
- * one full receive packet and is similarly rounded up and
- * expressed in KB. */
- pba = er32(PBA);
- /* upper 16 bits has Tx packet buffer allocation size in KB */
- tx_space = pba >> 16;
- /* lower 16 bits has Rx packet buffer allocation size in KB */
- pba &= 0xffff;
- /* don't include ethernet FCS because hardware appends/strips */
- min_rx_space = adapter->netdev->mtu + ENET_HEADER_SIZE +
- VLAN_TAG_SIZE;
- min_tx_space = min_rx_space;
- min_tx_space *= 2;
- min_tx_space = ALIGN(min_tx_space, 1024);
- min_tx_space >>= 10;
- min_rx_space = ALIGN(min_rx_space, 1024);
- min_rx_space >>= 10;
-
- /* If current Tx allocation is less than the min Tx FIFO size,
- * and the min Tx FIFO size is less than the current Rx FIFO
- * allocation, take space away from current Rx allocation */
- if (tx_space < min_tx_space &&
- ((min_tx_space - tx_space) < pba)) {
- pba = pba - (min_tx_space - tx_space);
-
- /* PCI/PCIx hardware has PBA alignment constraints */
- switch (hw->mac_type) {
- case e1000_82545 ... e1000_82546_rev_3:
- pba &= ~(E1000_PBA_8K - 1);
- break;
- default:
- break;
- }
-
- /* if short on rx space, rx wins and must trump tx
- * adjustment or use Early Receive if available */
- if (pba < min_rx_space) {
- switch (hw->mac_type) {
- case e1000_82573:
- /* ERT enabled in e1000_configure_rx */
- break;
- default:
- pba = min_rx_space;
- break;
- }
- }
- }
- }
-
- ew32(PBA, pba);
-
- /* flow control settings */
- /* Set the FC high water mark to 90% of the FIFO size.
- * Required to clear last 3 LSB */
- fc_high_water_mark = ((pba * 9216)/10) & 0xFFF8;
- /* We can't use 90% on small FIFOs because the remainder
- * would be less than 1 full frame. In this case, we size
- * it to allow at least a full frame above the high water
- * mark. */
- if (pba < E1000_PBA_16K)
- fc_high_water_mark = (pba * 1024) - 1600;
-
- hw->fc_high_water = fc_high_water_mark;
- hw->fc_low_water = fc_high_water_mark - 8;
- if (hw->mac_type == e1000_80003es2lan)
- hw->fc_pause_time = 0xFFFF;
- else
- hw->fc_pause_time = E1000_FC_PAUSE_TIME;
- hw->fc_send_xon = 1;
- hw->fc = hw->original_fc;
-
- /* Allow time for pending master requests to run */
- e1000_reset_hw(hw);
- if (hw->mac_type >= e1000_82544)
- ew32(WUC, 0);
-
- if (e1000_init_hw(hw))
- DPRINTK(PROBE, ERR, "Hardware Error\n");
- e1000_update_mng_vlan(adapter);
-
- /* if (adapter->hwflags & HWFLAGS_PHY_PWR_BIT) { */
- if (hw->mac_type >= e1000_82544 &&
- hw->mac_type <= e1000_82547_rev_2 &&
- hw->autoneg == 1 &&
- hw->autoneg_advertised == ADVERTISE_1000_FULL) {
- u32 ctrl = er32(CTRL);
- /* clear phy power management bit if we are in gig only mode,
- * which if enabled will attempt negotiation to 100Mb, which
- * can cause a loss of link at power off or driver unload */
- ctrl &= ~E1000_CTRL_SWDPIN3;
- ew32(CTRL, ctrl);
- }
-
- /* Enable h/w to recognize an 802.1Q VLAN Ethernet packet */
- ew32(VET, ETHERNET_IEEE_VLAN_TYPE);
-
- e1000_reset_adaptive(hw);
- e1000_phy_get_info(hw, &adapter->phy_info);
-
- if (!adapter->smart_power_down &&
- (hw->mac_type == e1000_82571 ||
- hw->mac_type == e1000_82572)) {
- u16 phy_data = 0;
- /* speed up time to link by disabling smart power down, ignore
- * the return value of this function because there is nothing
- * different we would do if it failed */
- e1000_read_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT,
- &phy_data);
- phy_data &= ~IGP02E1000_PM_SPD;
- e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT,
- phy_data);
- }
-
- e1000_release_manageability(adapter);
-}
-
-/**
- * Dump the eeprom for users having checksum issues
- **/
-static void e1000_dump_eeprom(struct e1000_adapter *adapter)
-{
- struct net_device *netdev = adapter->netdev;
- struct ethtool_eeprom eeprom;
- const struct ethtool_ops *ops = netdev->ethtool_ops;
- u8 *data;
- int i;
- u16 csum_old, csum_new = 0;
-
- eeprom.len = ops->get_eeprom_len(netdev);
- eeprom.offset = 0;
-
- data = kmalloc(eeprom.len, GFP_KERNEL);
- if (!data) {
- printk(KERN_ERR "Unable to allocate memory to dump EEPROM"
- " data\n");
- return;
- }
-
- ops->get_eeprom(netdev, &eeprom, data);
-
- csum_old = (data[EEPROM_CHECKSUM_REG * 2]) +
- (data[EEPROM_CHECKSUM_REG * 2 + 1] << 8);
- for (i = 0; i < EEPROM_CHECKSUM_REG * 2; i += 2)
- csum_new += data[i] + (data[i + 1] << 8);
- csum_new = EEPROM_SUM - csum_new;
-
- printk(KERN_ERR "/*********************/\n");
- printk(KERN_ERR "Current EEPROM Checksum : 0x%04x\n", csum_old);
- printk(KERN_ERR "Calculated : 0x%04x\n", csum_new);
-
- printk(KERN_ERR "Offset Values\n");
- printk(KERN_ERR "======== ======\n");
- print_hex_dump(KERN_ERR, "", DUMP_PREFIX_OFFSET, 16, 1, data, 128, 0);
-
- printk(KERN_ERR "Include this output when contacting your support "
- "provider.\n");
- printk(KERN_ERR "This is not a software error! Something bad "
- "happened to your hardware or\n");
- printk(KERN_ERR "EEPROM image. Ignoring this "
- "problem could result in further problems,\n");
- printk(KERN_ERR "possibly loss of data, corruption or system hangs!\n");
- printk(KERN_ERR "The MAC Address will be reset to 00:00:00:00:00:00, "
- "which is invalid\n");
- printk(KERN_ERR "and requires you to set the proper MAC "
- "address manually before continuing\n");
- printk(KERN_ERR "to enable this network device.\n");
- printk(KERN_ERR "Please inspect the EEPROM dump and report the issue "
- "to your hardware vendor\n");
- printk(KERN_ERR "or Intel Customer Support.\n");
- printk(KERN_ERR "/*********************/\n");
-
- kfree(data);
-}
-
-/**
- * e1000_is_need_ioport - determine if an adapter needs ioport resources or not
- * @pdev: PCI device information struct
- *
- * Return true if an adapter needs ioport resources
- **/
-static int e1000_is_need_ioport(struct pci_dev *pdev)
-{
- switch (pdev->device) {
- case E1000_DEV_ID_82540EM:
- case E1000_DEV_ID_82540EM_LOM:
- case E1000_DEV_ID_82540EP:
- case E1000_DEV_ID_82540EP_LOM:
- case E1000_DEV_ID_82540EP_LP:
- case E1000_DEV_ID_82541EI:
- case E1000_DEV_ID_82541EI_MOBILE:
- case E1000_DEV_ID_82541ER:
- case E1000_DEV_ID_82541ER_LOM:
- case E1000_DEV_ID_82541GI:
- case E1000_DEV_ID_82541GI_LF:
- case E1000_DEV_ID_82541GI_MOBILE:
- case E1000_DEV_ID_82544EI_COPPER:
- case E1000_DEV_ID_82544EI_FIBER:
- case E1000_DEV_ID_82544GC_COPPER:
- case E1000_DEV_ID_82544GC_LOM:
- case E1000_DEV_ID_82545EM_COPPER:
- case E1000_DEV_ID_82545EM_FIBER:
- case E1000_DEV_ID_82546EB_COPPER:
- case E1000_DEV_ID_82546EB_FIBER:
- case E1000_DEV_ID_82546EB_QUAD_COPPER:
- return true;
- default:
- return false;
- }
-}
-
-static const struct net_device_ops e1000_netdev_ops = {
- .ndo_open = e1000_open,
- .ndo_stop = e1000_close,
- .ndo_start_xmit = e1000_xmit_frame,
- .ndo_get_stats = e1000_get_stats,
- .ndo_set_rx_mode = e1000_set_rx_mode,
- .ndo_set_mac_address = e1000_set_mac,
- .ndo_tx_timeout = e1000_tx_timeout,
- .ndo_change_mtu = e1000_change_mtu,
- .ndo_do_ioctl = e1000_ioctl,
- .ndo_validate_addr = eth_validate_addr,
-
- .ndo_vlan_rx_register = e1000_vlan_rx_register,
- .ndo_vlan_rx_add_vid = e1000_vlan_rx_add_vid,
- .ndo_vlan_rx_kill_vid = e1000_vlan_rx_kill_vid,
-#ifdef CONFIG_NET_POLL_CONTROLLER
- .ndo_poll_controller = e1000_netpoll,
-#endif
-};
-
-/**
- * e1000_probe - Device Initialization Routine
- * @pdev: PCI device information struct
- * @ent: entry in e1000_pci_tbl
- *
- * Returns 0 on success, negative on failure
- *
- * e1000_probe initializes an adapter identified by a pci_dev structure.
- * The OS initialization, configuring of the adapter private structure,
- * and a hardware reset occur.
- **/
-static int __devinit e1000_probe(struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
- struct net_device *netdev;
- struct e1000_adapter *adapter;
- struct e1000_hw *hw;
-
- static int cards_found = 0;
- static int global_quad_port_a = 0; /* global ksp3 port a indication */
- int i, err, pci_using_dac;
- u16 eeprom_data = 0;
- u16 eeprom_apme_mask = E1000_EEPROM_APME;
- int bars, need_ioport;
-
- /* do not allocate ioport bars when not needed */
- need_ioport = e1000_is_need_ioport(pdev);
- if (need_ioport) {
- bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
- err = pci_enable_device(pdev);
- } else {
- bars = pci_select_bars(pdev, IORESOURCE_MEM);
- err = pci_enable_device_mem(pdev);
- }
- if (err)
- return err;
-
- if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK) &&
- !pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK)) {
- pci_using_dac = 1;
- } else {
- err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
- if (err) {
- err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
- if (err) {
- E1000_ERR("No usable DMA configuration, "
- "aborting\n");
- goto err_dma;
- }
- }
- pci_using_dac = 0;
- }
-
- err = pci_request_selected_regions(pdev, bars, e1000_driver_name);
- if (err)
- goto err_pci_reg;
-
- pci_set_master(pdev);
-
- err = -ENOMEM;
- netdev = alloc_etherdev(sizeof(struct e1000_adapter));
- if (!netdev)
- goto err_alloc_etherdev;
-
- SET_NETDEV_DEV(netdev, &pdev->dev);
-
- pci_set_drvdata(pdev, netdev);
- adapter = netdev_priv(netdev);
- adapter->netdev = netdev;
- adapter->pdev = pdev;
- adapter->msg_enable = (1 << debug) - 1;
- adapter->bars = bars;
- adapter->need_ioport = need_ioport;
-
- hw = &adapter->hw;
- hw->back = adapter;
-
- err = -EIO;
- hw->hw_addr = pci_ioremap_bar(pdev, BAR_0);
- if (!hw->hw_addr)
- goto err_ioremap;
-
- if (adapter->need_ioport) {
- for (i = BAR_1; i <= BAR_5; i++) {
- if (pci_resource_len(pdev, i) == 0)
- continue;
- if (pci_resource_flags(pdev, i) & IORESOURCE_IO) {
- hw->io_base = pci_resource_start(pdev, i);
- break;
- }
- }
- }
-
- netdev->netdev_ops = &e1000_netdev_ops;
- e1000_set_ethtool_ops(netdev);
- netdev->watchdog_timeo = 5 * HZ;
- netif_napi_add(netdev, &adapter->napi, e1000_clean, 64);
-
- strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1);
-
- adapter->bd_number = cards_found;
-
- /* setup the private structure */
-
- err = e1000_sw_init(adapter);
- if (err)
- goto err_sw_init;
-
- err = -EIO;
- /* Flash BAR mapping must happen after e1000_sw_init
- * because it depends on mac_type */
- if ((hw->mac_type == e1000_ich8lan) &&
- (pci_resource_flags(pdev, 1) & IORESOURCE_MEM)) {
- hw->flash_address = pci_ioremap_bar(pdev, 1);
- if (!hw->flash_address)
- goto err_flashmap;
- }
-
- if (e1000_check_phy_reset_block(hw))
- DPRINTK(PROBE, INFO, "PHY reset is blocked due to SOL/IDER session.\n");
-
- if (hw->mac_type >= e1000_82543) {
- netdev->features = NETIF_F_SG |
- NETIF_F_HW_CSUM |
- NETIF_F_HW_VLAN_TX |
- NETIF_F_HW_VLAN_RX |
- NETIF_F_HW_VLAN_FILTER;
- if (hw->mac_type == e1000_ich8lan)
- netdev->features &= ~NETIF_F_HW_VLAN_FILTER;
- }
-
- if ((hw->mac_type >= e1000_82544) &&
- (hw->mac_type != e1000_82547))
- netdev->features |= NETIF_F_TSO;
-
- if (hw->mac_type > e1000_82547_rev_2)
- netdev->features |= NETIF_F_TSO6;
- if (pci_using_dac)
- netdev->features |= NETIF_F_HIGHDMA;
-
- netdev->features |= NETIF_F_LLTX;
-
- netdev->vlan_features |= NETIF_F_TSO;
- netdev->vlan_features |= NETIF_F_TSO6;
- netdev->vlan_features |= NETIF_F_HW_CSUM;
- netdev->vlan_features |= NETIF_F_SG;
-
- adapter->en_mng_pt = e1000_enable_mng_pass_thru(hw);
-
- /* initialize eeprom parameters */
- if (e1000_init_eeprom_params(hw)) {
- E1000_ERR("EEPROM initialization failed\n");
- goto err_eeprom;
- }
-
- /* before reading the EEPROM, reset the controller to
- * put the device in a known good starting state */
-
- e1000_reset_hw(hw);
-
- /* make sure the EEPROM is good */
- if (e1000_validate_eeprom_checksum(hw) < 0) {
- DPRINTK(PROBE, ERR, "The EEPROM Checksum Is Not Valid\n");
- e1000_dump_eeprom(adapter);
- /*
- * set MAC address to all zeroes to invalidate and temporary
- * disable this device for the user. This blocks regular
- * traffic while still permitting ethtool ioctls from reaching
- * the hardware as well as allowing the user to run the
- * interface after manually setting a hw addr using
- * `ip set address`
- */
- memset(hw->mac_addr, 0, netdev->addr_len);
- } else {
- /* copy the MAC address out of the EEPROM */
- if (e1000_read_mac_addr(hw))
- DPRINTK(PROBE, ERR, "EEPROM Read Error\n");
- }
- /* don't block initalization here due to bad MAC address */
- memcpy(netdev->dev_addr, hw->mac_addr, netdev->addr_len);
- memcpy(netdev->perm_addr, hw->mac_addr, netdev->addr_len);
-
- if (!is_valid_ether_addr(netdev->perm_addr))
- DPRINTK(PROBE, ERR, "Invalid MAC Address\n");
-
- e1000_get_bus_info(hw);
-
- init_timer(&adapter->tx_fifo_stall_timer);
- adapter->tx_fifo_stall_timer.function = &e1000_82547_tx_fifo_stall;
- adapter->tx_fifo_stall_timer.data = (unsigned long)adapter;
-
- init_timer(&adapter->watchdog_timer);
- adapter->watchdog_timer.function = &e1000_watchdog;
- adapter->watchdog_timer.data = (unsigned long) adapter;
-
- init_timer(&adapter->phy_info_timer);
- adapter->phy_info_timer.function = &e1000_update_phy_info;
- adapter->phy_info_timer.data = (unsigned long)adapter;
-
- INIT_WORK(&adapter->reset_task, e1000_reset_task);
-
- e1000_check_options(adapter);
-
- /* Initial Wake on LAN setting
- * If APM wake is enabled in the EEPROM,
- * enable the ACPI Magic Packet filter
- */
-
- switch (hw->mac_type) {
- case e1000_82542_rev2_0:
- case e1000_82542_rev2_1:
- case e1000_82543:
- break;
- case e1000_82544:
- e1000_read_eeprom(hw,
- EEPROM_INIT_CONTROL2_REG, 1, &eeprom_data);
- eeprom_apme_mask = E1000_EEPROM_82544_APM;
- break;
- case e1000_ich8lan:
- e1000_read_eeprom(hw,
- EEPROM_INIT_CONTROL1_REG, 1, &eeprom_data);
- eeprom_apme_mask = E1000_EEPROM_ICH8_APME;
- break;
- case e1000_82546:
- case e1000_82546_rev_3:
- case e1000_82571:
- case e1000_80003es2lan:
- if (er32(STATUS) & E1000_STATUS_FUNC_1){
- e1000_read_eeprom(hw,
- EEPROM_INIT_CONTROL3_PORT_B, 1, &eeprom_data);
- break;
- }
- /* Fall Through */
- default:
- e1000_read_eeprom(hw,
- EEPROM_INIT_CONTROL3_PORT_A, 1, &eeprom_data);
- break;
- }
- if (eeprom_data & eeprom_apme_mask)
- adapter->eeprom_wol |= E1000_WUFC_MAG;
-
- /* now that we have the eeprom settings, apply the special cases
- * where the eeprom may be wrong or the board simply won't support
- * wake on lan on a particular port */
- switch (pdev->device) {
- case E1000_DEV_ID_82546GB_PCIE:
- adapter->eeprom_wol = 0;
- break;
- case E1000_DEV_ID_82546EB_FIBER:
- case E1000_DEV_ID_82546GB_FIBER:
- case E1000_DEV_ID_82571EB_FIBER:
- /* Wake events only supported on port A for dual fiber
- * regardless of eeprom setting */
- if (er32(STATUS) & E1000_STATUS_FUNC_1)
- adapter->eeprom_wol = 0;
- break;
- case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
- case E1000_DEV_ID_82571EB_QUAD_COPPER:
- case E1000_DEV_ID_82571EB_QUAD_FIBER:
- case E1000_DEV_ID_82571EB_QUAD_COPPER_LOWPROFILE:
- case E1000_DEV_ID_82571PT_QUAD_COPPER:
- /* if quad port adapter, disable WoL on all but port A */
- if (global_quad_port_a != 0)
- adapter->eeprom_wol = 0;
- else
- adapter->quad_port_a = 1;
- /* Reset for multiple quad port adapters */
- if (++global_quad_port_a == 4)
- global_quad_port_a = 0;
- break;
- }
-
- /* initialize the wol settings based on the eeprom settings */
- adapter->wol = adapter->eeprom_wol;
- device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
-
- /* print bus type/speed/width info */
- DPRINTK(PROBE, INFO, "(PCI%s:%s:%s) ",
- ((hw->bus_type == e1000_bus_type_pcix) ? "-X" :
- (hw->bus_type == e1000_bus_type_pci_express ? " Express":"")),
- ((hw->bus_speed == e1000_bus_speed_2500) ? "2.5Gb/s" :
- (hw->bus_speed == e1000_bus_speed_133) ? "133MHz" :
- (hw->bus_speed == e1000_bus_speed_120) ? "120MHz" :
- (hw->bus_speed == e1000_bus_speed_100) ? "100MHz" :
- (hw->bus_speed == e1000_bus_speed_66) ? "66MHz" : "33MHz"),
- ((hw->bus_width == e1000_bus_width_64) ? "64-bit" :
- (hw->bus_width == e1000_bus_width_pciex_4) ? "Width x4" :
- (hw->bus_width == e1000_bus_width_pciex_1) ? "Width x1" :
- "32-bit"));
-
- printk("%pM\n", netdev->dev_addr);
-
- if (hw->bus_type == e1000_bus_type_pci_express) {
- DPRINTK(PROBE, WARNING, "This device (id %04x:%04x) will no "
- "longer be supported by this driver in the future.\n",
- pdev->vendor, pdev->device);
- DPRINTK(PROBE, WARNING, "please use the \"e1000e\" "
- "driver instead.\n");
- }
-
- /* reset the hardware with the new settings */
- e1000_reset(adapter);
-
- /* If the controller is 82573 and f/w is AMT, do not set
- * DRV_LOAD until the interface is up. For all other cases,
- * let the f/w know that the h/w is now under the control
- * of the driver. */
- if (hw->mac_type != e1000_82573 ||
- !e1000_check_mng_mode(hw))
- e1000_get_hw_control(adapter);
-
- /* tell the stack to leave us alone until e1000_open() is called */
- netif_carrier_off(netdev);
- netif_stop_queue(netdev);
-
- strcpy(netdev->name, "eth%d");
- err = register_netdev(netdev);
- if (err)
- goto err_register;
-
- DPRINTK(PROBE, INFO, "Intel(R) PRO/1000 Network Connection\n");
-
- cards_found++;
- return 0;
-
-err_register:
- e1000_release_hw_control(adapter);
-err_eeprom:
- if (!e1000_check_phy_reset_block(hw))
- e1000_phy_hw_reset(hw);
-
- if (hw->flash_address)
- iounmap(hw->flash_address);
-err_flashmap:
- kfree(adapter->tx_ring);
- kfree(adapter->rx_ring);
-err_sw_init:
- iounmap(hw->hw_addr);
-err_ioremap:
- free_netdev(netdev);
-err_alloc_etherdev:
- pci_release_selected_regions(pdev, bars);
-err_pci_reg:
-err_dma:
- pci_disable_device(pdev);
- return err;
-}
-
-/**
- * e1000_remove - Device Removal Routine
- * @pdev: PCI device information struct
- *
- * e1000_remove is called by the PCI subsystem to alert the driver
- * that it should release a PCI device. The could be caused by a
- * Hot-Plug event, or because the driver is going to be removed from
- * memory.
- **/
-
-static void __devexit e1000_remove(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct e1000_adapter *adapter = netdev_priv(netdev);
- struct e1000_hw *hw = &adapter->hw;
-
- cancel_work_sync(&adapter->reset_task);
-
- e1000_release_manageability(adapter);
-
- /* Release control of h/w to f/w. If f/w is AMT enabled, this
- * would have already happened in close and is redundant. */
- e1000_release_hw_control(adapter);
-
- unregister_netdev(netdev);
-
- if (!e1000_check_phy_reset_block(hw))
- e1000_phy_hw_reset(hw);
-
- kfree(adapter->tx_ring);
- kfree(adapter->rx_ring);
-
- iounmap(hw->hw_addr);
- if (hw->flash_address)
- iounmap(hw->flash_address);
- pci_release_selected_regions(pdev, adapter->bars);
-
- free_netdev(netdev);
-
- pci_disable_device(pdev);
-}
-
-/**
- * e1000_sw_init - Initialize general software structures (struct e1000_adapter)
- * @adapter: board private structure to initialize
- *
- * e1000_sw_init initializes the Adapter private data structure.
- * Fields are initialized based on PCI device information and
- * OS network device settings (MTU size).
- **/
-
-static int __devinit e1000_sw_init(struct e1000_adapter *adapter)
-{
- struct e1000_hw *hw = &adapter->hw;
- struct net_device *netdev = adapter->netdev;
- struct pci_dev *pdev = adapter->pdev;
-
- /* PCI config space info */
-
- hw->vendor_id = pdev->vendor;
- hw->device_id = pdev->device;
- hw->subsystem_vendor_id = pdev->subsystem_vendor;
- hw->subsystem_id = pdev->subsystem_device;
- hw->revision_id = pdev->revision;
-
- pci_read_config_word(pdev, PCI_COMMAND, &hw->pci_cmd_word);
-
- adapter->rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE;
- hw->max_frame_size = netdev->mtu +
- ENET_HEADER_SIZE + ETHERNET_FCS_SIZE;
- hw->min_frame_size = MINIMUM_ETHERNET_FRAME_SIZE;
-
- /* identify the MAC */
-
- if (e1000_set_mac_type(hw)) {
- DPRINTK(PROBE, ERR, "Unknown MAC Type\n");
- return -EIO;
- }
-
- switch (hw->mac_type) {
- default:
- break;
- case e1000_82541:
- case e1000_82547:
- case e1000_82541_rev_2:
- case e1000_82547_rev_2:
- hw->phy_init_script = 1;
- break;
- }
-
- e1000_set_media_type(hw);
-
- hw->wait_autoneg_complete = false;
- hw->tbi_compatibility_en = true;
- hw->adaptive_ifs = true;
-
- /* Copper options */
-
- if (hw->media_type == e1000_media_type_copper) {
- hw->mdix = AUTO_ALL_MODES;
- hw->disable_polarity_correction = false;
- hw->master_slave = E1000_MASTER_SLAVE;
- }
-
- adapter->num_tx_queues = 1;
- adapter->num_rx_queues = 1;
-
- if (e1000_alloc_queues(adapter)) {
- DPRINTK(PROBE, ERR, "Unable to allocate memory for queues\n");
- return -ENOMEM;
- }
-
- spin_lock_init(&adapter->tx_queue_lock);
-
- /* Explicitly disable IRQ since the NIC can be in any state. */
- e1000_irq_disable(adapter);
-
- spin_lock_init(&adapter->stats_lock);
-
- set_bit(__E1000_DOWN, &adapter->flags);
-
- return 0;
-}
-
-/**
- * e1000_alloc_queues - Allocate memory for all rings
- * @adapter: board private structure to initialize
- *
- * We allocate one ring per queue at run-time since we don't know the
- * number of queues at compile-time.
- **/
-
-static int __devinit e1000_alloc_queues(struct e1000_adapter *adapter)
-{
- adapter->tx_ring = kcalloc(adapter->num_tx_queues,
- sizeof(struct e1000_tx_ring), GFP_KERNEL);
- if (!adapter->tx_ring)
- return -ENOMEM;
-
- adapter->rx_ring = kcalloc(adapter->num_rx_queues,
- sizeof(struct e1000_rx_ring), GFP_KERNEL);
- if (!adapter->rx_ring) {
- kfree(adapter->tx_ring);
- return -ENOMEM;
- }
-
- return E1000_SUCCESS;
-}
-
-/**
- * e1000_open - Called when a network interface is made active
- * @netdev: network interface device structure
- *
- * Returns 0 on success, negative value on failure
- *
- * The open entry point is called when a network interface is made
- * active by the system (IFF_UP). At this point all resources needed
- * for transmit and receive operations are allocated, the interrupt
- * handler is registered with the OS, the watchdog timer is started,
- * and the stack is notified that the interface is ready.
- **/
-
-static int e1000_open(struct net_device *netdev)
-{
- struct e1000_adapter *adapter = netdev_priv(netdev);
- struct e1000_hw *hw = &adapter->hw;
- int err;
-
- /* disallow open during test */
- if (test_bit(__E1000_TESTING, &adapter->flags))
- return -EBUSY;
-
- /* allocate transmit descriptors */
- err = e1000_setup_all_tx_resources(adapter);
- if (err)
- goto err_setup_tx;
-
- /* allocate receive descriptors */
- err = e1000_setup_all_rx_resources(adapter);
- if (err)
- goto err_setup_rx;
-
- e1000_power_up_phy(adapter);
-
- adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
- if ((hw->mng_cookie.status &
- E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT)) {
- e1000_update_mng_vlan(adapter);
- }
-
- /* If AMT is enabled, let the firmware know that the network
- * interface is now open */
- if (hw->mac_type == e1000_82573 &&
- e1000_check_mng_mode(hw))
- e1000_get_hw_control(adapter);
-
- /* before we allocate an interrupt, we must be ready to handle it.
- * Setting DEBUG_SHIRQ in the kernel makes it fire an interrupt
- * as soon as we call pci_request_irq, so we have to setup our
- * clean_rx handler before we do so. */
- e1000_configure(adapter);
-
- err = e1000_request_irq(adapter);
- if (err)
- goto err_req_irq;
-
- /* From here on the code is the same as e1000_up() */
- clear_bit(__E1000_DOWN, &adapter->flags);
-
- napi_enable(&adapter->napi);
-
- e1000_irq_enable(adapter);
-
- netif_start_queue(netdev);
-
- /* fire a link status change interrupt to start the watchdog */
- ew32(ICS, E1000_ICS_LSC);
-
- return E1000_SUCCESS;
-
-err_req_irq:
- e1000_release_hw_control(adapter);
- e1000_power_down_phy(adapter);
- e1000_free_all_rx_resources(adapter);
-err_setup_rx:
- e1000_free_all_tx_resources(adapter);
-err_setup_tx:
- e1000_reset(adapter);
-
- return err;
-}
-
-/**
- * e1000_close - Disables a network interface
- * @netdev: network interface device structure
- *
- * Returns 0, this is not allowed to fail
- *
- * The close entry point is called when an interface is de-activated
- * by the OS. The hardware is still under the drivers control, but
- * needs to be disabled. A global MAC reset is issued to stop the
- * hardware, and all transmit and receive resources are freed.
- **/
-
-static int e1000_close(struct net_device *netdev)
-{
- struct e1000_adapter *adapter = netdev_priv(netdev);
- struct e1000_hw *hw = &adapter->hw;
-
- WARN_ON(test_bit(__E1000_RESETTING, &adapter->flags));
- e1000_down(adapter);
- e1000_power_down_phy(adapter);
- e1000_free_irq(adapter);
-
- e1000_free_all_tx_resources(adapter);
- e1000_free_all_rx_resources(adapter);
-
- /* kill manageability vlan ID if supported, but not if a vlan with
- * the same ID is registered on the host OS (let 8021q kill it) */
- if ((hw->mng_cookie.status &
- E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) &&
- !(adapter->vlgrp &&
- vlan_group_get_device(adapter->vlgrp, adapter->mng_vlan_id))) {
- e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id);
- }
-
- /* If AMT is enabled, let the firmware know that the network
- * interface is now closed */
- if (hw->mac_type == e1000_82573 &&
- e1000_check_mng_mode(hw))
- e1000_release_hw_control(adapter);
-
- return 0;
-}
-
-/**
- * e1000_check_64k_bound - check that memory doesn't cross 64kB boundary
- * @adapter: address of board private structure
- * @start: address of beginning of memory
- * @len: length of memory
- **/
-static bool e1000_check_64k_bound(struct e1000_adapter *adapter, void *start,
- unsigned long len)
-{
- struct e1000_hw *hw = &adapter->hw;
- unsigned long begin = (unsigned long)start;
- unsigned long end = begin + len;
-
- /* First rev 82545 and 82546 need to not allow any memory
- * write location to cross 64k boundary due to errata 23 */
- if (hw->mac_type == e1000_82545 ||
- hw->mac_type == e1000_82546) {
- return ((begin ^ (end - 1)) >> 16) != 0 ? false : true;
- }
-
- return true;
-}
-
-/**
- * e1000_setup_tx_resources - allocate Tx resources (Descriptors)
- * @adapter: board private structure
- * @txdr: tx descriptor ring (for a specific queue) to setup
- *
- * Return 0 on success, negative on failure
- **/
-
-static int e1000_setup_tx_resources(struct e1000_adapter *adapter,
- struct e1000_tx_ring *txdr)
-{
- struct pci_dev *pdev = adapter->pdev;
- int size;
-
- size = sizeof(struct e1000_buffer) * txdr->count;
- txdr->buffer_info = vmalloc(size);
- if (!txdr->buffer_info) {
- DPRINTK(PROBE, ERR,
- "Unable to allocate memory for the transmit descriptor ring\n");
- return -ENOMEM;
- }
- memset(txdr->buffer_info, 0, size);
-
- /* round up to nearest 4K */
-
- txdr->size = txdr->count * sizeof(struct e1000_tx_desc);
- txdr->size = ALIGN(txdr->size, 4096);
-
- txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma);
- if (!txdr->desc) {
-setup_tx_desc_die:
- vfree(txdr->buffer_info);
- DPRINTK(PROBE, ERR,
- "Unable to allocate memory for the transmit descriptor ring\n");
- return -ENOMEM;
- }
-
- /* Fix for errata 23, can't cross 64kB boundary */
- if (!e1000_check_64k_bound(adapter, txdr->desc, txdr->size)) {
- void *olddesc = txdr->desc;
- dma_addr_t olddma = txdr->dma;
- DPRINTK(TX_ERR, ERR, "txdr align check failed: %u bytes "
- "at %p\n", txdr->size, txdr->desc);
- /* Try again, without freeing the previous */
- txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma);
- /* Failed allocation, critical failure */
- if (!txdr->desc) {
- pci_free_consistent(pdev, txdr->size, olddesc, olddma);
- goto setup_tx_desc_die;
- }
-
- if (!e1000_check_64k_bound(adapter, txdr->desc, txdr->size)) {
- /* give up */
- pci_free_consistent(pdev, txdr->size, txdr->desc,
- txdr->dma);
- pci_free_consistent(pdev, txdr->size, olddesc, olddma);
- DPRINTK(PROBE, ERR,
- "Unable to allocate aligned memory "
- "for the transmit descriptor ring\n");
- vfree(txdr->buffer_info);
- return -ENOMEM;
- } else {
- /* Free old allocation, new allocation was successful */
- pci_free_consistent(pdev, txdr->size, olddesc, olddma);
- }
- }
- memset(txdr->desc, 0, txdr->size);
-
- txdr->next_to_use = 0;
- txdr->next_to_clean = 0;
- spin_lock_init(&txdr->tx_lock);
-
- return 0;
-}
-
-/**
- * e1000_setup_all_tx_resources - wrapper to allocate Tx resources
- * (Descriptors) for all queues
- * @adapter: board private structure
- *
- * Return 0 on success, negative on failure
- **/
-
-int e1000_setup_all_tx_resources(struct e1000_adapter *adapter)
-{
- int i, err = 0;
-
- for (i = 0; i < adapter->num_tx_queues; i++) {
- err = e1000_setup_tx_resources(adapter, &adapter->tx_ring[i]);
- if (err) {
- DPRINTK(PROBE, ERR,
- "Allocation for Tx Queue %u failed\n", i);
- for (i-- ; i >= 0; i--)
- e1000_free_tx_resources(adapter,
- &adapter->tx_ring[i]);
- break;
- }
- }
-
- return err;
-}
-
-/**
- * e1000_configure_tx - Configure 8254x Transmit Unit after Reset
- * @adapter: board private structure
- *
- * Configure the Tx unit of the MAC after a reset.
- **/
-
-static void e1000_configure_tx(struct e1000_adapter *adapter)
-{
- u64 tdba;
- struct e1000_hw *hw = &adapter->hw;
- u32 tdlen, tctl, tipg, tarc;
- u32 ipgr1, ipgr2;
-
- /* Setup the HW Tx Head and Tail descriptor pointers */
-
- switch (adapter->num_tx_queues) {
- case 1:
- default:
- tdba = adapter->tx_ring[0].dma;
- tdlen = adapter->tx_ring[0].count *
- sizeof(struct e1000_tx_desc);
- ew32(TDLEN, tdlen);
- ew32(TDBAH, (tdba >> 32));
- ew32(TDBAL, (tdba & 0x00000000ffffffffULL));
- ew32(TDT, 0);
- ew32(TDH, 0);
- adapter->tx_ring[0].tdh = ((hw->mac_type >= e1000_82543) ? E1000_TDH : E1000_82542_TDH);
- adapter->tx_ring[0].tdt = ((hw->mac_type >= e1000_82543) ? E1000_TDT : E1000_82542_TDT);
- break;
- }
-
- /* Set the default values for the Tx Inter Packet Gap timer */
- if (hw->mac_type <= e1000_82547_rev_2 &&
- (hw->media_type == e1000_media_type_fiber ||
- hw->media_type == e1000_media_type_internal_serdes))
- tipg = DEFAULT_82543_TIPG_IPGT_FIBER;
- else
- tipg = DEFAULT_82543_TIPG_IPGT_COPPER;
-
- switch (hw->mac_type) {
- case e1000_82542_rev2_0:
- case e1000_82542_rev2_1:
- tipg = DEFAULT_82542_TIPG_IPGT;
- ipgr1 = DEFAULT_82542_TIPG_IPGR1;
- ipgr2 = DEFAULT_82542_TIPG_IPGR2;
- break;
- case e1000_80003es2lan:
- ipgr1 = DEFAULT_82543_TIPG_IPGR1;
- ipgr2 = DEFAULT_80003ES2LAN_TIPG_IPGR2;
- break;
- default:
- ipgr1 = DEFAULT_82543_TIPG_IPGR1;
- ipgr2 = DEFAULT_82543_TIPG_IPGR2;
- break;
- }
- tipg |= ipgr1 << E1000_TIPG_IPGR1_SHIFT;
- tipg |= ipgr2 << E1000_TIPG_IPGR2_SHIFT;
- ew32(TIPG, tipg);
-
- /* Set the Tx Interrupt Delay register */
-
- ew32(TIDV, adapter->tx_int_delay);
- if (hw->mac_type >= e1000_82540)
- ew32(TADV, adapter->tx_abs_int_delay);
-
- /* Program the Transmit Control Register */
-
- tctl = er32(TCTL);
- tctl &= ~E1000_TCTL_CT;
- tctl |= E1000_TCTL_PSP | E1000_TCTL_RTLC |
- (E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT);
-
- if (hw->mac_type == e1000_82571 || hw->mac_type == e1000_82572) {
- tarc = er32(TARC0);
- /* set the speed mode bit, we'll clear it if we're not at
- * gigabit link later */
- tarc |= (1 << 21);
- ew32(TARC0, tarc);
- } else if (hw->mac_type == e1000_80003es2lan) {
- tarc = er32(TARC0);
- tarc |= 1;
- ew32(TARC0, tarc);
- tarc = er32(TARC1);
- tarc |= 1;
- ew32(TARC1, tarc);
- }
-
- e1000_config_collision_dist(hw);
-
- /* Setup Transmit Descriptor Settings for eop descriptor */
- adapter->txd_cmd = E1000_TXD_CMD_EOP | E1000_TXD_CMD_IFCS;
-
- /* only set IDE if we are delaying interrupts using the timers */
- if (adapter->tx_int_delay)
- adapter->txd_cmd |= E1000_TXD_CMD_IDE;
-
- if (hw->mac_type < e1000_82543)
- adapter->txd_cmd |= E1000_TXD_CMD_RPS;
- else
- adapter->txd_cmd |= E1000_TXD_CMD_RS;
-
- /* Cache if we're 82544 running in PCI-X because we'll
- * need this to apply a workaround later in the send path. */
- if (hw->mac_type == e1000_82544 &&
- hw->bus_type == e1000_bus_type_pcix)
- adapter->pcix_82544 = 1;
-
- ew32(TCTL, tctl);
-
-}
-
-/**
- * e1000_setup_rx_resources - allocate Rx resources (Descriptors)
- * @adapter: board private structure
- * @rxdr: rx descriptor ring (for a specific queue) to setup
- *
- * Returns 0 on success, negative on failure
- **/
-
-static int e1000_setup_rx_resources(struct e1000_adapter *adapter,
- struct e1000_rx_ring *rxdr)
-{
- struct e1000_hw *hw = &adapter->hw;
- struct pci_dev *pdev = adapter->pdev;
- int size, desc_len;
-
- size = sizeof(struct e1000_buffer) * rxdr->count;
- rxdr->buffer_info = vmalloc(size);
- if (!rxdr->buffer_info) {
- DPRINTK(PROBE, ERR,
- "Unable to allocate memory for the receive descriptor ring\n");
- return -ENOMEM;
- }
- memset(rxdr->buffer_info, 0, size);
-
- if (hw->mac_type <= e1000_82547_rev_2)
- desc_len = sizeof(struct e1000_rx_desc);
- else
- desc_len = sizeof(union e1000_rx_desc_packet_split);
-
- /* Round up to nearest 4K */
-
- rxdr->size = rxdr->count * desc_len;
- rxdr->size = ALIGN(rxdr->size, 4096);
-
- rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma);
-
- if (!rxdr->desc) {
- DPRINTK(PROBE, ERR,
- "Unable to allocate memory for the receive descriptor ring\n");
-setup_rx_desc_die:
- vfree(rxdr->buffer_info);
- return -ENOMEM;
- }
-
- /* Fix for errata 23, can't cross 64kB boundary */
- if (!e1000_check_64k_bound(adapter, rxdr->desc, rxdr->size)) {
- void *olddesc = rxdr->desc;
- dma_addr_t olddma = rxdr->dma;
- DPRINTK(RX_ERR, ERR, "rxdr align check failed: %u bytes "
- "at %p\n", rxdr->size, rxdr->desc);
- /* Try again, without freeing the previous */
- rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma);
- /* Failed allocation, critical failure */
- if (!rxdr->desc) {
- pci_free_consistent(pdev, rxdr->size, olddesc, olddma);
- DPRINTK(PROBE, ERR,
- "Unable to allocate memory "
- "for the receive descriptor ring\n");
- goto setup_rx_desc_die;
- }
-
- if (!e1000_check_64k_bound(adapter, rxdr->desc, rxdr->size)) {
- /* give up */
- pci_free_consistent(pdev, rxdr->size, rxdr->desc,
- rxdr->dma);
- pci_free_consistent(pdev, rxdr->size, olddesc, olddma);
- DPRINTK(PROBE, ERR,
- "Unable to allocate aligned memory "
- "for the receive descriptor ring\n");
- goto setup_rx_desc_die;
- } else {
- /* Free old allocation, new allocation was successful */
- pci_free_consistent(pdev, rxdr->size, olddesc, olddma);
- }
- }
- memset(rxdr->desc, 0, rxdr->size);
-
- rxdr->next_to_clean = 0;
- rxdr->next_to_use = 0;
-
- return 0;
-}
-
-/**
- * e1000_setup_all_rx_resources - wrapper to allocate Rx resources
- * (Descriptors) for all queues
- * @adapter: board private structure
- *
- * Return 0 on success, negative on failure
- **/
-
-int e1000_setup_all_rx_resources(struct e1000_adapter *adapter)
-{
- int i, err = 0;
-
- for (i = 0; i < adapter->num_rx_queues; i++) {
- err = e1000_setup_rx_resources(adapter, &adapter->rx_ring[i]);
- if (err) {
- DPRINTK(PROBE, ERR,
- "Allocation for Rx Queue %u failed\n", i);
- for (i-- ; i >= 0; i--)
- e1000_free_rx_resources(adapter,
- &adapter->rx_ring[i]);
- break;
- }
- }
-
- return err;
-}
-
-/**
- * e1000_setup_rctl - configure the receive control registers
- * @adapter: Board private structure
- **/
-#define PAGE_USE_COUNT(S) (((S) >> PAGE_SHIFT) + \
- (((S) & (PAGE_SIZE - 1)) ? 1 : 0))
-static void e1000_setup_rctl(struct e1000_adapter *adapter)
-{
- struct e1000_hw *hw = &adapter->hw;
- u32 rctl;
-
- rctl = er32(RCTL);
-
- rctl &= ~(3 << E1000_RCTL_MO_SHIFT);
-
- rctl |= E1000_RCTL_EN | E1000_RCTL_BAM |
- E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
- (hw->mc_filter_type << E1000_RCTL_MO_SHIFT);
-
- if (hw->tbi_compatibility_on == 1)
- rctl |= E1000_RCTL_SBP;
- else
- rctl &= ~E1000_RCTL_SBP;
-
- if (adapter->netdev->mtu <= ETH_DATA_LEN)
- rctl &= ~E1000_RCTL_LPE;
- else
- rctl |= E1000_RCTL_LPE;
-
- /* Setup buffer sizes */
- rctl &= ~E1000_RCTL_SZ_4096;
- rctl |= E1000_RCTL_BSEX;
- switch (adapter->rx_buffer_len) {
- case E1000_RXBUFFER_256:
- rctl |= E1000_RCTL_SZ_256;
- rctl &= ~E1000_RCTL_BSEX;
- break;
- case E1000_RXBUFFER_512:
- rctl |= E1000_RCTL_SZ_512;
- rctl &= ~E1000_RCTL_BSEX;
- break;
- case E1000_RXBUFFER_1024:
- rctl |= E1000_RCTL_SZ_1024;
- rctl &= ~E1000_RCTL_BSEX;
- break;
- case E1000_RXBUFFER_2048:
- default:
- rctl |= E1000_RCTL_SZ_2048;
- rctl &= ~E1000_RCTL_BSEX;
- break;
- case E1000_RXBUFFER_4096:
- rctl |= E1000_RCTL_SZ_4096;
- break;
- case E1000_RXBUFFER_8192:
- rctl |= E1000_RCTL_SZ_8192;
- break;
- case E1000_RXBUFFER_16384:
- rctl |= E1000_RCTL_SZ_16384;
- break;
- }
-
- ew32(RCTL, rctl);
-}
-
-/**
- * e1000_configure_rx - Configure 8254x Receive Unit after Reset
- * @adapter: board private structure
- *
- * Configure the Rx unit of the MAC after a reset.
- **/
-
-static void e1000_configure_rx(struct e1000_adapter *adapter)
-{
- u64 rdba;
- struct e1000_hw *hw = &adapter->hw;
- u32 rdlen, rctl, rxcsum, ctrl_ext;
-
- rdlen = adapter->rx_ring[0].count *
- sizeof(struct e1000_rx_desc);
- adapter->clean_rx = e1000_clean_rx_irq;
- adapter->alloc_rx_buf = e1000_alloc_rx_buffers;
-
- /* disable receives while setting up the descriptors */
- rctl = er32(RCTL);
- ew32(RCTL, rctl & ~E1000_RCTL_EN);
-
- /* set the Receive Delay Timer Register */
- ew32(RDTR, adapter->rx_int_delay);
-
- if (hw->mac_type >= e1000_82540) {
- ew32(RADV, adapter->rx_abs_int_delay);
- if (adapter->itr_setting != 0)
- ew32(ITR, 1000000000 / (adapter->itr * 256));
- }
-
- if (hw->mac_type >= e1000_82571) {
- ctrl_ext = er32(CTRL_EXT);
- /* Reset delay timers after every interrupt */
- ctrl_ext |= E1000_CTRL_EXT_INT_TIMER_CLR;
- /* Auto-Mask interrupts upon ICR access */
- ctrl_ext |= E1000_CTRL_EXT_IAME;
- ew32(IAM, 0xffffffff);
- ew32(CTRL_EXT, ctrl_ext);
- E1000_WRITE_FLUSH();
- }
-
- /* Setup the HW Rx Head and Tail Descriptor Pointers and
- * the Base and Length of the Rx Descriptor Ring */
- switch (adapter->num_rx_queues) {
- case 1:
- default:
- rdba = adapter->rx_ring[0].dma;
- ew32(RDLEN, rdlen);
- ew32(RDBAH, (rdba >> 32));
- ew32(RDBAL, (rdba & 0x00000000ffffffffULL));
- ew32(RDT, 0);
- ew32(RDH, 0);
- adapter->rx_ring[0].rdh = ((hw->mac_type >= e1000_82543) ? E1000_RDH : E1000_82542_RDH);
- adapter->rx_ring[0].rdt = ((hw->mac_type >= e1000_82543) ? E1000_RDT : E1000_82542_RDT);
- break;
- }
-
- /* Enable 82543 Receive Checksum Offload for TCP and UDP */
- if (hw->mac_type >= e1000_82543) {
- rxcsum = er32(RXCSUM);
- if (adapter->rx_csum)
- rxcsum |= E1000_RXCSUM_TUOFL;
- else
- /* don't need to clear IPPCSE as it defaults to 0 */
- rxcsum &= ~E1000_RXCSUM_TUOFL;
- ew32(RXCSUM, rxcsum);
- }
-
- /* Enable Receives */
- ew32(RCTL, rctl);
-}
-
-/**
- * e1000_free_tx_resources - Free Tx Resources per Queue
- * @adapter: board private structure
- * @tx_ring: Tx descriptor ring for a specific queue
- *
- * Free all transmit software resources
- **/
-
-static void e1000_free_tx_resources(struct e1000_adapter *adapter,
- struct e1000_tx_ring *tx_ring)
-{
- struct pci_dev *pdev = adapter->pdev;
-
- e1000_clean_tx_ring(adapter, tx_ring);
-
- vfree(tx_ring->buffer_info);
- tx_ring->buffer_info = NULL;
-
- pci_free_consistent(pdev, tx_ring->size, tx_ring->desc, tx_ring->dma);
-
- tx_ring->desc = NULL;
-}
-
-/**
- * e1000_free_all_tx_resources - Free Tx Resources for All Queues
- * @adapter: board private structure
- *
- * Free all transmit software resources
- **/
-
-void e1000_free_all_tx_resources(struct e1000_adapter *adapter)
-{
- int i;
-
- for (i = 0; i < adapter->num_tx_queues; i++)
- e1000_free_tx_resources(adapter, &adapter->tx_ring[i]);
-}
-
-static void e1000_unmap_and_free_tx_resource(struct e1000_adapter *adapter,
- struct e1000_buffer *buffer_info)
-{
- if (buffer_info->dma) {
- pci_unmap_page(adapter->pdev,
- buffer_info->dma,
- buffer_info->length,
- PCI_DMA_TODEVICE);
- buffer_info->dma = 0;
- }
- if (buffer_info->skb) {
- dev_kfree_skb_any(buffer_info->skb);
- buffer_info->skb = NULL;
- }
- /* buffer_info must be completely set up in the transmit path */
-}
-
-/**
- * e1000_clean_tx_ring - Free Tx Buffers
- * @adapter: board private structure
- * @tx_ring: ring to be cleaned
- **/
-
-static void e1000_clean_tx_ring(struct e1000_adapter *adapter,
- struct e1000_tx_ring *tx_ring)
-{
- struct e1000_hw *hw = &adapter->hw;
- struct e1000_buffer *buffer_info;
- unsigned long size;
- unsigned int i;
-
- /* Free all the Tx ring sk_buffs */
-
- for (i = 0; i < tx_ring->count; i++) {
- buffer_info = &tx_ring->buffer_info[i];
- e1000_unmap_and_free_tx_resource(adapter, buffer_info);
- }
-
- size = sizeof(struct e1000_buffer) * tx_ring->count;
- memset(tx_ring->buffer_info, 0, size);
-
- /* Zero out the descriptor ring */
-
- memset(tx_ring->desc, 0, tx_ring->size);
-
- tx_ring->next_to_use = 0;
- tx_ring->next_to_clean = 0;
- tx_ring->last_tx_tso = 0;
-
- writel(0, hw->hw_addr + tx_ring->tdh);
- writel(0, hw->hw_addr + tx_ring->tdt);
-}
-
-/**
- * e1000_clean_all_tx_rings - Free Tx Buffers for all queues
- * @adapter: board private structure
- **/
-
-static void e1000_clean_all_tx_rings(struct e1000_adapter *adapter)
-{
- int i;
-
- for (i = 0; i < adapter->num_tx_queues; i++)
- e1000_clean_tx_ring(adapter, &adapter->tx_ring[i]);
-}
-
-/**
- * e1000_free_rx_resources - Free Rx Resources
- * @adapter: board private structure
- * @rx_ring: ring to clean the resources from
- *
- * Free all receive software resources
- **/
-
-static void e1000_free_rx_resources(struct e1000_adapter *adapter,
- struct e1000_rx_ring *rx_ring)
-{
- struct pci_dev *pdev = adapter->pdev;
-
- e1000_clean_rx_ring(adapter, rx_ring);
-
- vfree(rx_ring->buffer_info);
- rx_ring->buffer_info = NULL;
-
- pci_free_consistent(pdev, rx_ring->size, rx_ring->desc, rx_ring->dma);
-
- rx_ring->desc = NULL;
-}
-
-/**
- * e1000_free_all_rx_resources - Free Rx Resources for All Queues
- * @adapter: board private structure
- *
- * Free all receive software resources
- **/
-
-void e1000_free_all_rx_resources(struct e1000_adapter *adapter)
-{
- int i;
-
- for (i = 0; i < adapter->num_rx_queues; i++)
- e1000_free_rx_resources(adapter, &adapter->rx_ring[i]);
-}
-
-/**
- * e1000_clean_rx_ring - Free Rx Buffers per Queue
- * @adapter: board private structure
- * @rx_ring: ring to free buffers from
- **/
-
-static void e1000_clean_rx_ring(struct e1000_adapter *adapter,
- struct e1000_rx_ring *rx_ring)
-{
- struct e1000_hw *hw = &adapter->hw;
- struct e1000_buffer *buffer_info;
- struct pci_dev *pdev = adapter->pdev;
- unsigned long size;
- unsigned int i;
-
- /* Free all the Rx ring sk_buffs */
- for (i = 0; i < rx_ring->count; i++) {
- buffer_info = &rx_ring->buffer_info[i];
- if (buffer_info->skb) {
- pci_unmap_single(pdev,
- buffer_info->dma,
- buffer_info->length,
- PCI_DMA_FROMDEVICE);
-
- dev_kfree_skb(buffer_info->skb);
- buffer_info->skb = NULL;
- }
- }
-
- size = sizeof(struct e1000_buffer) * rx_ring->count;
- memset(rx_ring->buffer_info, 0, size);
-
- /* Zero out the descriptor ring */
-
- memset(rx_ring->desc, 0, rx_ring->size);
-
- rx_ring->next_to_clean = 0;
- rx_ring->next_to_use = 0;
-
- writel(0, hw->hw_addr + rx_ring->rdh);
- writel(0, hw->hw_addr + rx_ring->rdt);
-}
-
-/**
- * e1000_clean_all_rx_rings - Free Rx Buffers for all queues
- * @adapter: board private structure
- **/
-
-static void e1000_clean_all_rx_rings(struct e1000_adapter *adapter)
-{
- int i;
-
- for (i = 0; i < adapter->num_rx_queues; i++)
- e1000_clean_rx_ring(adapter, &adapter->rx_ring[i]);
-}
-
-/* The 82542 2.0 (revision 2) needs to have the receive unit in reset
- * and memory write and invalidate disabled for certain operations
- */
-static void e1000_enter_82542_rst(struct e1000_adapter *adapter)
-{
- struct e1000_hw *hw = &adapter->hw;
- struct net_device *netdev = adapter->netdev;
- u32 rctl;
-
- e1000_pci_clear_mwi(hw);
-
- rctl = er32(RCTL);
- rctl |= E1000_RCTL_RST;
- ew32(RCTL, rctl);
- E1000_WRITE_FLUSH();
- mdelay(5);
-
- if (netif_running(netdev))
- e1000_clean_all_rx_rings(adapter);
-}
-
-static void e1000_leave_82542_rst(struct e1000_adapter *adapter)
-{
- struct e1000_hw *hw = &adapter->hw;
- struct net_device *netdev = adapter->netdev;
- u32 rctl;
-
- rctl = er32(RCTL);
- rctl &= ~E1000_RCTL_RST;
- ew32(RCTL, rctl);
- E1000_WRITE_FLUSH();
- mdelay(5);
-
- if (hw->pci_cmd_word & PCI_COMMAND_INVALIDATE)
- e1000_pci_set_mwi(hw);
-
- if (netif_running(netdev)) {
- /* No need to loop, because 82542 supports only 1 queue */
- struct e1000_rx_ring *ring = &adapter->rx_ring[0];
- e1000_configure_rx(adapter);
- adapter->alloc_rx_buf(adapter, ring, E1000_DESC_UNUSED(ring));
- }
-}
-
-/**
- * e1000_set_mac - Change the Ethernet Address of the NIC
- * @netdev: network interface device structure
- * @p: pointer to an address structure
- *
- * Returns 0 on success, negative on failure
- **/
-
-static int e1000_set_mac(struct net_device *netdev, void *p)
-{
- struct e1000_adapter *adapter = netdev_priv(netdev);
- struct e1000_hw *hw = &adapter->hw;
- struct sockaddr *addr = p;
-
- if (!is_valid_ether_addr(addr->sa_data))
- return -EADDRNOTAVAIL;
-
- /* 82542 2.0 needs to be in reset to write receive address registers */
-
- if (hw->mac_type == e1000_82542_rev2_0)
- e1000_enter_82542_rst(adapter);
-
- memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
- memcpy(hw->mac_addr, addr->sa_data, netdev->addr_len);
-
- e1000_rar_set(hw, hw->mac_addr, 0);
-
- /* With 82571 controllers, LAA may be overwritten (with the default)
- * due to controller reset from the other port. */
- if (hw->mac_type == e1000_82571) {
- /* activate the work around */
- hw->laa_is_present = 1;
-
- /* Hold a copy of the LAA in RAR[14] This is done so that
- * between the time RAR[0] gets clobbered and the time it
- * gets fixed (in e1000_watchdog), the actual LAA is in one
- * of the RARs and no incoming packets directed to this port
- * are dropped. Eventaully the LAA will be in RAR[0] and
- * RAR[14] */
- e1000_rar_set(hw, hw->mac_addr,
- E1000_RAR_ENTRIES - 1);
- }
-
- if (hw->mac_type == e1000_82542_rev2_0)
- e1000_leave_82542_rst(adapter);
-
- return 0;
-}
-
-/**
- * e1000_set_rx_mode - Secondary Unicast, Multicast and Promiscuous mode set
- * @netdev: network interface device structure
- *
- * The set_rx_mode entry point is called whenever the unicast or multicast
- * address lists or the network interface flags are updated. This routine is
- * responsible for configuring the hardware for proper unicast, multicast,
- * promiscuous mode, and all-multi behavior.
- **/
-
-static void e1000_set_rx_mode(struct net_device *netdev)
-{
- struct e1000_adapter *adapter = netdev_priv(netdev);
- struct e1000_hw *hw = &adapter->hw;
- struct dev_addr_list *uc_ptr;
- struct dev_addr_list *mc_ptr;
- u32 rctl;
- u32 hash_value;
- int i, rar_entries = E1000_RAR_ENTRIES;
- int mta_reg_count = (hw->mac_type == e1000_ich8lan) ?
- E1000_NUM_MTA_REGISTERS_ICH8LAN :
- E1000_NUM_MTA_REGISTERS;
-
- if (hw->mac_type == e1000_ich8lan)
- rar_entries = E1000_RAR_ENTRIES_ICH8LAN;
-
- /* reserve RAR[14] for LAA over-write work-around */
- if (hw->mac_type == e1000_82571)
- rar_entries--;
-
- /* Check for Promiscuous and All Multicast modes */
-
- rctl = er32(RCTL);
-
- if (netdev->flags & IFF_PROMISC) {
- rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE);
- rctl &= ~E1000_RCTL_VFE;
- } else {
- if (netdev->flags & IFF_ALLMULTI) {
- rctl |= E1000_RCTL_MPE;
- } else {
- rctl &= ~E1000_RCTL_MPE;
- }
- if (adapter->hw.mac_type != e1000_ich8lan)
- rctl |= E1000_RCTL_VFE;
- }
-
- uc_ptr = NULL;
- if (netdev->uc_count > rar_entries - 1) {
- rctl |= E1000_RCTL_UPE;
- } else if (!(netdev->flags & IFF_PROMISC)) {
- rctl &= ~E1000_RCTL_UPE;
- uc_ptr = netdev->uc_list;
- }
-
- ew32(RCTL, rctl);
-
- /* 82542 2.0 needs to be in reset to write receive address registers */
-
- if (hw->mac_type == e1000_82542_rev2_0)
- e1000_enter_82542_rst(adapter);
-
- /* load the first 14 addresses into the exact filters 1-14. Unicast
- * addresses take precedence to avoid disabling unicast filtering
- * when possible.
- *
- * RAR 0 is used for the station MAC adddress
- * if there are not 14 addresses, go ahead and clear the filters
- * -- with 82571 controllers only 0-13 entries are filled here
- */
- mc_ptr = netdev->mc_list;
-
- for (i = 1; i < rar_entries; i++) {
- if (uc_ptr) {
- e1000_rar_set(hw, uc_ptr->da_addr, i);
- uc_ptr = uc_ptr->next;
- } else if (mc_ptr) {
- e1000_rar_set(hw, mc_ptr->da_addr, i);
- mc_ptr = mc_ptr->next;
- } else {
- E1000_WRITE_REG_ARRAY(hw, RA, i << 1, 0);
- E1000_WRITE_FLUSH();
- E1000_WRITE_REG_ARRAY(hw, RA, (i << 1) + 1, 0);
- E1000_WRITE_FLUSH();
- }
- }
- WARN_ON(uc_ptr != NULL);
-
- /* clear the old settings from the multicast hash table */
-
- for (i = 0; i < mta_reg_count; i++) {
- E1000_WRITE_REG_ARRAY(hw, MTA, i, 0);
- E1000_WRITE_FLUSH();
- }
-
- /* load any remaining addresses into the hash table */
-
- for (; mc_ptr; mc_ptr = mc_ptr->next) {
- hash_value = e1000_hash_mc_addr(hw, mc_ptr->da_addr);
- e1000_mta_set(hw, hash_value);
- }
-
- if (hw->mac_type == e1000_82542_rev2_0)
- e1000_leave_82542_rst(adapter);
-}
-
-/* Need to wait a few seconds after link up to get diagnostic information from
- * the phy */
-
-static void e1000_update_phy_info(unsigned long data)
-{
- struct e1000_adapter *adapter = (struct e1000_adapter *)data;
- struct e1000_hw *hw = &adapter->hw;
- e1000_phy_get_info(hw, &adapter->phy_info);
-}
-
-/**
- * e1000_82547_tx_fifo_stall - Timer Call-back
- * @data: pointer to adapter cast into an unsigned long
- **/
-
-static void e1000_82547_tx_fifo_stall(unsigned long data)
-{
- struct e1000_adapter *adapter = (struct e1000_adapter *)data;
- struct e1000_hw *hw = &adapter->hw;
- struct net_device *netdev = adapter->netdev;
- u32 tctl;
-
- if (atomic_read(&adapter->tx_fifo_stall)) {
- if ((er32(TDT) == er32(TDH)) &&
- (er32(TDFT) == er32(TDFH)) &&
- (er32(TDFTS) == er32(TDFHS))) {
- tctl = er32(TCTL);
- ew32(TCTL, tctl & ~E1000_TCTL_EN);
- ew32(TDFT, adapter->tx_head_addr);
- ew32(TDFH, adapter->tx_head_addr);
- ew32(TDFTS, adapter->tx_head_addr);
- ew32(TDFHS, adapter->tx_head_addr);
- ew32(TCTL, tctl);
- E1000_WRITE_FLUSH();
-
- adapter->tx_fifo_head = 0;
- atomic_set(&adapter->tx_fifo_stall, 0);
- netif_wake_queue(netdev);
- } else {
- mod_timer(&adapter->tx_fifo_stall_timer, jiffies + 1);
- }
- }
-}
-
-/**
- * e1000_watchdog - Timer Call-back
- * @data: pointer to adapter cast into an unsigned long
- **/
-static void e1000_watchdog(unsigned long data)
-{
- struct e1000_adapter *adapter = (struct e1000_adapter *)data;
- struct e1000_hw *hw = &adapter->hw;
- struct net_device *netdev = adapter->netdev;
- struct e1000_tx_ring *txdr = adapter->tx_ring;
- u32 link, tctl;
- s32 ret_val;
-
- ret_val = e1000_check_for_link(hw);
- if ((ret_val == E1000_ERR_PHY) &&
- (hw->phy_type == e1000_phy_igp_3) &&
- (er32(CTRL) & E1000_PHY_CTRL_GBE_DISABLE)) {
- /* See e1000_kumeran_lock_loss_workaround() */
- DPRINTK(LINK, INFO,
- "Gigabit has been disabled, downgrading speed\n");
- }
-
- if (hw->mac_type == e1000_82573) {
- e1000_enable_tx_pkt_filtering(hw);
- if (adapter->mng_vlan_id != hw->mng_cookie.vlan_id)
- e1000_update_mng_vlan(adapter);
- }
-
- if ((hw->media_type == e1000_media_type_internal_serdes) &&
- !(er32(TXCW) & E1000_TXCW_ANE))
- link = !hw->serdes_link_down;
- else
- link = er32(STATUS) & E1000_STATUS_LU;
-
- if (link) {
- if (!netif_carrier_ok(netdev)) {
- u32 ctrl;
- bool txb2b = true;
- e1000_get_speed_and_duplex(hw,
- &adapter->link_speed,
- &adapter->link_duplex);
-
- ctrl = er32(CTRL);
- printk(KERN_INFO "e1000: %s NIC Link is Up %d Mbps %s, "
- "Flow Control: %s\n",
- netdev->name,
- adapter->link_speed,
- adapter->link_duplex == FULL_DUPLEX ?
- "Full Duplex" : "Half Duplex",
- ((ctrl & E1000_CTRL_TFCE) && (ctrl &
- E1000_CTRL_RFCE)) ? "RX/TX" : ((ctrl &
- E1000_CTRL_RFCE) ? "RX" : ((ctrl &
- E1000_CTRL_TFCE) ? "TX" : "None" )));
-
- /* tweak tx_queue_len according to speed/duplex
- * and adjust the timeout factor */
- netdev->tx_queue_len = adapter->tx_queue_len;
- adapter->tx_timeout_factor = 1;
- switch (adapter->link_speed) {
- case SPEED_10:
- txb2b = false;
- netdev->tx_queue_len = 10;
- adapter->tx_timeout_factor = 8;
- break;
- case SPEED_100:
- txb2b = false;
- netdev->tx_queue_len = 100;
- /* maybe add some timeout factor ? */
- break;
- }
-
- if ((hw->mac_type == e1000_82571 ||
- hw->mac_type == e1000_82572) &&
- !txb2b) {
- u32 tarc0;
- tarc0 = er32(TARC0);
- tarc0 &= ~(1 << 21);
- ew32(TARC0, tarc0);
- }
-
- /* disable TSO for pcie and 10/100 speeds, to avoid
- * some hardware issues */
- if (!adapter->tso_force &&
- hw->bus_type == e1000_bus_type_pci_express){
- switch (adapter->link_speed) {
- case SPEED_10:
- case SPEED_100:
- DPRINTK(PROBE,INFO,
- "10/100 speed: disabling TSO\n");
- netdev->features &= ~NETIF_F_TSO;
- netdev->features &= ~NETIF_F_TSO6;
- break;
- case SPEED_1000:
- netdev->features |= NETIF_F_TSO;
- netdev->features |= NETIF_F_TSO6;
- break;
- default:
- /* oops */
- break;
- }
- }
-
- /* enable transmits in the hardware, need to do this
- * after setting TARC0 */
- tctl = er32(TCTL);
- tctl |= E1000_TCTL_EN;
- ew32(TCTL, tctl);
-
- netif_carrier_on(netdev);
- netif_wake_queue(netdev);
- mod_timer(&adapter->phy_info_timer, round_jiffies(jiffies + 2 * HZ));
- adapter->smartspeed = 0;
- } else {
- /* make sure the receive unit is started */
- if (hw->rx_needs_kicking) {
- u32 rctl = er32(RCTL);
- ew32(RCTL, rctl | E1000_RCTL_EN);
- }
- }
- } else {
- if (netif_carrier_ok(netdev)) {
- adapter->link_speed = 0;
- adapter->link_duplex = 0;
- printk(KERN_INFO "e1000: %s NIC Link is Down\n",
- netdev->name);
- netif_carrier_off(netdev);
- netif_stop_queue(netdev);
- mod_timer(&adapter->phy_info_timer, round_jiffies(jiffies + 2 * HZ));
-
- /* 80003ES2LAN workaround--
- * For packet buffer work-around on link down event;
- * disable receives in the ISR and
- * reset device here in the watchdog
- */
- if (hw->mac_type == e1000_80003es2lan)
- /* reset device */
- schedule_work(&adapter->reset_task);
- }
-
- e1000_smartspeed(adapter);
- }
-
- e1000_update_stats(adapter);
-
- hw->tx_packet_delta = adapter->stats.tpt - adapter->tpt_old;
- adapter->tpt_old = adapter->stats.tpt;
- hw->collision_delta = adapter->stats.colc - adapter->colc_old;
- adapter->colc_old = adapter->stats.colc;
-
- adapter->gorcl = adapter->stats.gorcl - adapter->gorcl_old;
- adapter->gorcl_old = adapter->stats.gorcl;
- adapter->gotcl = adapter->stats.gotcl - adapter->gotcl_old;
- adapter->gotcl_old = adapter->stats.gotcl;
-
- e1000_update_adaptive(hw);
-
- if (!netif_carrier_ok(netdev)) {
- if (E1000_DESC_UNUSED(txdr) + 1 < txdr->count) {
- /* We've lost link, so the controller stops DMA,
- * but we've got queued Tx work that's never going
- * to get done, so reset controller to flush Tx.
- * (Do the reset outside of interrupt context). */
- adapter->tx_timeout_count++;
- schedule_work(&adapter->reset_task);
- }
- }
-
- /* Cause software interrupt to ensure rx ring is cleaned */
- ew32(ICS, E1000_ICS_RXDMT0);
-
- /* Force detection of hung controller every watchdog period */
- adapter->detect_tx_hung = true;
-
- /* With 82571 controllers, LAA may be overwritten due to controller
- * reset from the other port. Set the appropriate LAA in RAR[0] */
- if (hw->mac_type == e1000_82571 && hw->laa_is_present)
- e1000_rar_set(hw, hw->mac_addr, 0);
-
- /* Reset the timer */
- mod_timer(&adapter->watchdog_timer, round_jiffies(jiffies + 2 * HZ));
-}
-
-enum latency_range {
- lowest_latency = 0,
- low_latency = 1,
- bulk_latency = 2,
- latency_invalid = 255
-};
-
-/**
- * e1000_update_itr - update the dynamic ITR value based on statistics
- * Stores a new ITR value based on packets and byte
- * counts during the last interrupt. The advantage of per interrupt
- * computation is faster updates and more accurate ITR for the current
- * traffic pattern. Constants in this function were computed
- * based on theoretical maximum wire speed and thresholds were set based
- * on testing data as well as attempting to minimize response time
- * while increasing bulk throughput.
- * this functionality is controlled by the InterruptThrottleRate module
- * parameter (see e1000_param.c)
- * @adapter: pointer to adapter
- * @itr_setting: current adapter->itr
- * @packets: the number of packets during this measurement interval
- * @bytes: the number of bytes during this measurement interval
- **/
-static unsigned int e1000_update_itr(struct e1000_adapter *adapter,
- u16 itr_setting, int packets, int bytes)
-{
- unsigned int retval = itr_setting;
- struct e1000_hw *hw = &adapter->hw;
-
- if (unlikely(hw->mac_type < e1000_82540))
- goto update_itr_done;
-
- if (packets == 0)
- goto update_itr_done;
-
- switch (itr_setting) {
- case lowest_latency:
- /* jumbo frames get bulk treatment*/
- if (bytes/packets > 8000)
- retval = bulk_latency;
- else if ((packets < 5) && (bytes > 512))
- retval = low_latency;
- break;
- case low_latency: /* 50 usec aka 20000 ints/s */
- if (bytes > 10000) {
- /* jumbo frames need bulk latency setting */
- if (bytes/packets > 8000)
- retval = bulk_latency;
- else if ((packets < 10) || ((bytes/packets) > 1200))
- retval = bulk_latency;
- else if ((packets > 35))
- retval = lowest_latency;
- } else if (bytes/packets > 2000)
- retval = bulk_latency;
- else if (packets <= 2 && bytes < 512)
- retval = lowest_latency;
- break;
- case bulk_latency: /* 250 usec aka 4000 ints/s */
- if (bytes > 25000) {
- if (packets > 35)
- retval = low_latency;
- } else if (bytes < 6000) {
- retval = low_latency;
- }
- break;
- }
-
-update_itr_done:
- return retval;
-}
-
-static void e1000_set_itr(struct e1000_adapter *adapter)
-{
- struct e1000_hw *hw = &adapter->hw;
- u16 current_itr;
- u32 new_itr = adapter->itr;
-
- if (unlikely(hw->mac_type < e1000_82540))
- return;
-
- /* for non-gigabit speeds, just fix the interrupt rate at 4000 */
- if (unlikely(adapter->link_speed != SPEED_1000)) {
- current_itr = 0;
- new_itr = 4000;
- goto set_itr_now;
- }
-
- adapter->tx_itr = e1000_update_itr(adapter,
- adapter->tx_itr,
- adapter->total_tx_packets,
- adapter->total_tx_bytes);
- /* conservative mode (itr 3) eliminates the lowest_latency setting */
- if (adapter->itr_setting == 3 && adapter->tx_itr == lowest_latency)
- adapter->tx_itr = low_latency;
-
- adapter->rx_itr = e1000_update_itr(adapter,
- adapter->rx_itr,
- adapter->total_rx_packets,
- adapter->total_rx_bytes);
- /* conservative mode (itr 3) eliminates the lowest_latency setting */
- if (adapter->itr_setting == 3 && adapter->rx_itr == lowest_latency)
- adapter->rx_itr = low_latency;
-
- current_itr = max(adapter->rx_itr, adapter->tx_itr);
-
- switch (current_itr) {
- /* counts and packets in update_itr are dependent on these numbers */
- case lowest_latency:
- new_itr = 70000;
- break;
- case low_latency:
- new_itr = 20000; /* aka hwitr = ~200 */
- break;
- case bulk_latency:
- new_itr = 4000;
- break;
- default:
- break;
- }
-
-set_itr_now:
- if (new_itr != adapter->itr) {
- /* this attempts to bias the interrupt rate towards Bulk
- * by adding intermediate steps when interrupt rate is
- * increasing */
- new_itr = new_itr > adapter->itr ?
- min(adapter->itr + (new_itr >> 2), new_itr) :
- new_itr;
- adapter->itr = new_itr;
- ew32(ITR, 1000000000 / (new_itr * 256));
- }
-
- return;
-}
-
-#define E1000_TX_FLAGS_CSUM 0x00000001
-#define E1000_TX_FLAGS_VLAN 0x00000002
-#define E1000_TX_FLAGS_TSO 0x00000004
-#define E1000_TX_FLAGS_IPV4 0x00000008
-#define E1000_TX_FLAGS_VLAN_MASK 0xffff0000
-#define E1000_TX_FLAGS_VLAN_SHIFT 16
-
-static int e1000_tso(struct e1000_adapter *adapter,
- struct e1000_tx_ring *tx_ring, struct sk_buff *skb)
-{
- struct e1000_context_desc *context_desc;
- struct e1000_buffer *buffer_info;
- unsigned int i;
- u32 cmd_length = 0;
- u16 ipcse = 0, tucse, mss;
- u8 ipcss, ipcso, tucss, tucso, hdr_len;
- int err;
-
- if (skb_is_gso(skb)) {
- if (skb_header_cloned(skb)) {
- err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
- if (err)
- return err;
- }
-
- hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
- mss = skb_shinfo(skb)->gso_size;
- if (skb->protocol == htons(ETH_P_IP)) {
- struct iphdr *iph = ip_hdr(skb);
- iph->tot_len = 0;
- iph->check = 0;
- tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
- iph->daddr, 0,
- IPPROTO_TCP,
- 0);
- cmd_length = E1000_TXD_CMD_IP;
- ipcse = skb_transport_offset(skb) - 1;
- } else if (skb->protocol == htons(ETH_P_IPV6)) {
- ipv6_hdr(skb)->payload_len = 0;
- tcp_hdr(skb)->check =
- ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
- &ipv6_hdr(skb)->daddr,
- 0, IPPROTO_TCP, 0);
- ipcse = 0;
- }
- ipcss = skb_network_offset(skb);
- ipcso = (void *)&(ip_hdr(skb)->check) - (void *)skb->data;
- tucss = skb_transport_offset(skb);
- tucso = (void *)&(tcp_hdr(skb)->check) - (void *)skb->data;
- tucse = 0;
-
- cmd_length |= (E1000_TXD_CMD_DEXT | E1000_TXD_CMD_TSE |
- E1000_TXD_CMD_TCP | (skb->len - (hdr_len)));
-
- i = tx_ring->next_to_use;
- context_desc = E1000_CONTEXT_DESC(*tx_ring, i);
- buffer_info = &tx_ring->buffer_info[i];
-
- context_desc->lower_setup.ip_fields.ipcss = ipcss;
- context_desc->lower_setup.ip_fields.ipcso = ipcso;
- context_desc->lower_setup.ip_fields.ipcse = cpu_to_le16(ipcse);
- context_desc->upper_setup.tcp_fields.tucss = tucss;
- context_desc->upper_setup.tcp_fields.tucso = tucso;
- context_desc->upper_setup.tcp_fields.tucse = cpu_to_le16(tucse);
- context_desc->tcp_seg_setup.fields.mss = cpu_to_le16(mss);
- context_desc->tcp_seg_setup.fields.hdr_len = hdr_len;
- context_desc->cmd_and_length = cpu_to_le32(cmd_length);
-
- buffer_info->time_stamp = jiffies;
- buffer_info->next_to_watch = i;
-
- if (++i == tx_ring->count) i = 0;
- tx_ring->next_to_use = i;
-
- return true;
- }
- return false;
-}
-
-static bool e1000_tx_csum(struct e1000_adapter *adapter,
- struct e1000_tx_ring *tx_ring, struct sk_buff *skb)
-{
- struct e1000_context_desc *context_desc;
- struct e1000_buffer *buffer_info;
- unsigned int i;
- u8 css;
- u32 cmd_len = E1000_TXD_CMD_DEXT;
-
- if (skb->ip_summed != CHECKSUM_PARTIAL)
- return false;
-
- switch (skb->protocol) {
- case __constant_htons(ETH_P_IP):
- if (ip_hdr(skb)->protocol == IPPROTO_TCP)
- cmd_len |= E1000_TXD_CMD_TCP;
- break;
- case __constant_htons(ETH_P_IPV6):
- /* XXX not handling all IPV6 headers */
- if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP)
- cmd_len |= E1000_TXD_CMD_TCP;
- break;
- default:
- if (unlikely(net_ratelimit()))
- DPRINTK(DRV, WARNING,
- "checksum_partial proto=%x!\n", skb->protocol);
- break;
- }
-
- css = skb_transport_offset(skb);
-
- i = tx_ring->next_to_use;
- buffer_info = &tx_ring->buffer_info[i];
- context_desc = E1000_CONTEXT_DESC(*tx_ring, i);
-
- context_desc->lower_setup.ip_config = 0;
- context_desc->upper_setup.tcp_fields.tucss = css;
- context_desc->upper_setup.tcp_fields.tucso =
- css + skb->csum_offset;
- context_desc->upper_setup.tcp_fields.tucse = 0;
- context_desc->tcp_seg_setup.data = 0;
- context_desc->cmd_and_length = cpu_to_le32(cmd_len);
-
- buffer_info->time_stamp = jiffies;
- buffer_info->next_to_watch = i;
-
- if (unlikely(++i == tx_ring->count)) i = 0;
- tx_ring->next_to_use = i;
-
- return true;
-}
-
-#define E1000_MAX_TXD_PWR 12
-#define E1000_MAX_DATA_PER_TXD (1<<E1000_MAX_TXD_PWR)
-
-static int e1000_tx_map(struct e1000_adapter *adapter,
- struct e1000_tx_ring *tx_ring,
- struct sk_buff *skb, unsigned int first,
- unsigned int max_per_txd, unsigned int nr_frags,
- unsigned int mss)
-{
- struct e1000_hw *hw = &adapter->hw;
- struct e1000_buffer *buffer_info;
- unsigned int len = skb->len;
- unsigned int offset = 0, size, count = 0, i;
- unsigned int f;
- len -= skb->data_len;
-
- i = tx_ring->next_to_use;
-
- while (len) {
- buffer_info = &tx_ring->buffer_info[i];
- size = min(len, max_per_txd);
- /* Workaround for Controller erratum --
- * descriptor for non-tso packet in a linear SKB that follows a
- * tso gets written back prematurely before the data is fully
- * DMA'd to the controller */
- if (!skb->data_len && tx_ring->last_tx_tso &&
- !skb_is_gso(skb)) {
- tx_ring->last_tx_tso = 0;
- size -= 4;
- }
-
- /* Workaround for premature desc write-backs
- * in TSO mode. Append 4-byte sentinel desc */
- if (unlikely(mss && !nr_frags && size == len && size > 8))
- size -= 4;
- /* work-around for errata 10 and it applies
- * to all controllers in PCI-X mode
- * The fix is to make sure that the first descriptor of a
- * packet is smaller than 2048 - 16 - 16 (or 2016) bytes
- */
- if (unlikely((hw->bus_type == e1000_bus_type_pcix) &&
- (size > 2015) && count == 0))
- size = 2015;
-
- /* Workaround for potential 82544 hang in PCI-X. Avoid
- * terminating buffers within evenly-aligned dwords. */
- if (unlikely(adapter->pcix_82544 &&
- !((unsigned long)(skb->data + offset + size - 1) & 4) &&
- size > 4))
- size -= 4;
-
- buffer_info->length = size;
- buffer_info->dma =
- pci_map_single(adapter->pdev,
- skb->data + offset,
- size,
- PCI_DMA_TODEVICE);
- buffer_info->time_stamp = jiffies;
- buffer_info->next_to_watch = i;
-
- len -= size;
- offset += size;
- count++;
- if (unlikely(++i == tx_ring->count)) i = 0;
- }
-
- for (f = 0; f < nr_frags; f++) {
- struct skb_frag_struct *frag;
-
- frag = &skb_shinfo(skb)->frags[f];
- len = frag->size;
- offset = frag->page_offset;
-
- while (len) {
- buffer_info = &tx_ring->buffer_info[i];
- size = min(len, max_per_txd);
- /* Workaround for premature desc write-backs
- * in TSO mode. Append 4-byte sentinel desc */
- if (unlikely(mss && f == (nr_frags-1) && size == len && size > 8))
- size -= 4;
- /* Workaround for potential 82544 hang in PCI-X.
- * Avoid terminating buffers within evenly-aligned
- * dwords. */
- if (unlikely(adapter->pcix_82544 &&
- !((unsigned long)(frag->page+offset+size-1) & 4) &&
- size > 4))
- size -= 4;
-
- buffer_info->length = size;
- buffer_info->dma =
- pci_map_page(adapter->pdev,
- frag->page,
- offset,
- size,
- PCI_DMA_TODEVICE);
- buffer_info->time_stamp = jiffies;
- buffer_info->next_to_watch = i;
-
- len -= size;
- offset += size;
- count++;
- if (unlikely(++i == tx_ring->count)) i = 0;
- }
- }
-
- i = (i == 0) ? tx_ring->count - 1 : i - 1;
- tx_ring->buffer_info[i].skb = skb;
- tx_ring->buffer_info[first].next_to_watch = i;
-
- return count;
-}
-
-static void e1000_tx_queue(struct e1000_adapter *adapter,
- struct e1000_tx_ring *tx_ring, int tx_flags,
- int count)
-{
- struct e1000_hw *hw = &adapter->hw;
- struct e1000_tx_desc *tx_desc = NULL;
- struct e1000_buffer *buffer_info;
- u32 txd_upper = 0, txd_lower = E1000_TXD_CMD_IFCS;
- unsigned int i;
-
- if (likely(tx_flags & E1000_TX_FLAGS_TSO)) {
- txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D |
- E1000_TXD_CMD_TSE;
- txd_upper |= E1000_TXD_POPTS_TXSM << 8;
-
- if (likely(tx_flags & E1000_TX_FLAGS_IPV4))
- txd_upper |= E1000_TXD_POPTS_IXSM << 8;
- }
-
- if (likely(tx_flags & E1000_TX_FLAGS_CSUM)) {
- txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D;
- txd_upper |= E1000_TXD_POPTS_TXSM << 8;
- }
-
- if (unlikely(tx_flags & E1000_TX_FLAGS_VLAN)) {
- txd_lower |= E1000_TXD_CMD_VLE;
- txd_upper |= (tx_flags & E1000_TX_FLAGS_VLAN_MASK);
- }
-
- i = tx_ring->next_to_use;
-
- while (count--) {
- buffer_info = &tx_ring->buffer_info[i];
- tx_desc = E1000_TX_DESC(*tx_ring, i);
- tx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
- tx_desc->lower.data =
- cpu_to_le32(txd_lower | buffer_info->length);
- tx_desc->upper.data = cpu_to_le32(txd_upper);
- if (unlikely(++i == tx_ring->count)) i = 0;
- }
-
- tx_desc->lower.data |= cpu_to_le32(adapter->txd_cmd);
-
- /* Force memory writes to complete before letting h/w
- * know there are new descriptors to fetch. (Only
- * applicable for weak-ordered memory model archs,
- * such as IA-64). */
- wmb();
-
- tx_ring->next_to_use = i;
- writel(i, hw->hw_addr + tx_ring->tdt);
- /* we need this if more than one processor can write to our tail
- * at a time, it syncronizes IO on IA64/Altix systems */
- mmiowb();
-}
-
-/**
- * 82547 workaround to avoid controller hang in half-duplex environment.
- * The workaround is to avoid queuing a large packet that would span
- * the internal Tx FIFO ring boundary by notifying the stack to resend
- * the packet at a later time. This gives the Tx FIFO an opportunity to
- * flush all packets. When that occurs, we reset the Tx FIFO pointers
- * to the beginning of the Tx FIFO.
- **/
-
-#define E1000_FIFO_HDR 0x10
-#define E1000_82547_PAD_LEN 0x3E0
-
-static int e1000_82547_fifo_workaround(struct e1000_adapter *adapter,
- struct sk_buff *skb)
-{
- u32 fifo_space = adapter->tx_fifo_size - adapter->tx_fifo_head;
- u32 skb_fifo_len = skb->len + E1000_FIFO_HDR;
-
- skb_fifo_len = ALIGN(skb_fifo_len, E1000_FIFO_HDR);
-
- if (adapter->link_duplex != HALF_DUPLEX)
- goto no_fifo_stall_required;
-
- if (atomic_read(&adapter->tx_fifo_stall))
- return 1;
-
- if (skb_fifo_len >= (E1000_82547_PAD_LEN + fifo_space)) {
- atomic_set(&adapter->tx_fifo_stall, 1);
- return 1;
- }
-
-no_fifo_stall_required:
- adapter->tx_fifo_head += skb_fifo_len;
- if (adapter->tx_fifo_head >= adapter->tx_fifo_size)
- adapter->tx_fifo_head -= adapter->tx_fifo_size;
- return 0;
-}
-
-#define MINIMUM_DHCP_PACKET_SIZE 282
-static int e1000_transfer_dhcp_info(struct e1000_adapter *adapter,
- struct sk_buff *skb)
-{
- struct e1000_hw *hw = &adapter->hw;
- u16 length, offset;
- if (vlan_tx_tag_present(skb)) {
- if (!((vlan_tx_tag_get(skb) == hw->mng_cookie.vlan_id) &&
- ( hw->mng_cookie.status &
- E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT)) )
- return 0;
- }
- if (skb->len > MINIMUM_DHCP_PACKET_SIZE) {
- struct ethhdr *eth = (struct ethhdr *)skb->data;
- if ((htons(ETH_P_IP) == eth->h_proto)) {
- const struct iphdr *ip =
- (struct iphdr *)((u8 *)skb->data+14);
- if (IPPROTO_UDP == ip->protocol) {
- struct udphdr *udp =
- (struct udphdr *)((u8 *)ip +
- (ip->ihl << 2));
- if (ntohs(udp->dest) == 67) {
- offset = (u8 *)udp + 8 - skb->data;
- length = skb->len - offset;
-
- return e1000_mng_write_dhcp_info(hw,
- (u8 *)udp + 8,
- length);
- }
- }
- }
- }
- return 0;
-}
-
-static int __e1000_maybe_stop_tx(struct net_device *netdev, int size)
-{
- struct e1000_adapter *adapter = netdev_priv(netdev);
- struct e1000_tx_ring *tx_ring = adapter->tx_ring;
-
- netif_stop_queue(netdev);
- /* Herbert's original patch had:
- * smp_mb__after_netif_stop_queue();
- * but since that doesn't exist yet, just open code it. */
- smp_mb();
-
- /* We need to check again in a case another CPU has just
- * made room available. */
- if (likely(E1000_DESC_UNUSED(tx_ring) < size))
- return -EBUSY;
-
- /* A reprieve! */
- netif_start_queue(netdev);
- ++adapter->restart_queue;
- return 0;
-}
-
-static int e1000_maybe_stop_tx(struct net_device *netdev,
- struct e1000_tx_ring *tx_ring, int size)
-{
- if (likely(E1000_DESC_UNUSED(tx_ring) >= size))
- return 0;
- return __e1000_maybe_stop_tx(netdev, size);
-}
-
-#define TXD_USE_COUNT(S, X) (((S) >> (X)) + 1 )
-static int e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
-{
- struct e1000_adapter *adapter = netdev_priv(netdev);
- struct e1000_hw *hw = &adapter->hw;
- struct e1000_tx_ring *tx_ring;
- unsigned int first, max_per_txd = E1000_MAX_DATA_PER_TXD;
- unsigned int max_txd_pwr = E1000_MAX_TXD_PWR;
- unsigned int tx_flags = 0;
- unsigned int len = skb->len - skb->data_len;
- unsigned long flags;
- unsigned int nr_frags;
- unsigned int mss;
- int count = 0;
- int tso;
- unsigned int f;
-
- /* This goes back to the question of how to logically map a tx queue
- * to a flow. Right now, performance is impacted slightly negatively
- * if using multiple tx queues. If the stack breaks away from a
- * single qdisc implementation, we can look at this again. */
- tx_ring = adapter->tx_ring;
-
- if (unlikely(skb->len <= 0)) {
- dev_kfree_skb_any(skb);
- return NETDEV_TX_OK;
- }
-
- /* 82571 and newer doesn't need the workaround that limited descriptor
- * length to 4kB */
- if (hw->mac_type >= e1000_82571)
- max_per_txd = 8192;
-
- mss = skb_shinfo(skb)->gso_size;
- /* The controller does a simple calculation to
- * make sure there is enough room in the FIFO before
- * initiating the DMA for each buffer. The calc is:
- * 4 = ceil(buffer len/mss). To make sure we don't
- * overrun the FIFO, adjust the max buffer len if mss
- * drops. */
- if (mss) {
- u8 hdr_len;
- max_per_txd = min(mss << 2, max_per_txd);
- max_txd_pwr = fls(max_per_txd) - 1;
-
- /* TSO Workaround for 82571/2/3 Controllers -- if skb->data
- * points to just header, pull a few bytes of payload from
- * frags into skb->data */
- hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
- if (skb->data_len && hdr_len == len) {
- switch (hw->mac_type) {
- unsigned int pull_size;
- case e1000_82544:
- /* Make sure we have room to chop off 4 bytes,
- * and that the end alignment will work out to
- * this hardware's requirements
- * NOTE: this is a TSO only workaround
- * if end byte alignment not correct move us
- * into the next dword */
- if ((unsigned long)(skb_tail_pointer(skb) - 1) & 4)
- break;
- /* fall through */
- case e1000_82571:
- case e1000_82572:
- case e1000_82573:
- case e1000_ich8lan:
- pull_size = min((unsigned int)4, skb->data_len);
- if (!__pskb_pull_tail(skb, pull_size)) {
- DPRINTK(DRV, ERR,
- "__pskb_pull_tail failed.\n");
- dev_kfree_skb_any(skb);
- return NETDEV_TX_OK;
- }
- len = skb->len - skb->data_len;
- break;
- default:
- /* do nothing */
- break;
- }
- }
- }
-
- /* reserve a descriptor for the offload context */
- if ((mss) || (skb->ip_summed == CHECKSUM_PARTIAL))
- count++;
- count++;
-
- /* Controller Erratum workaround */
- if (!skb->data_len && tx_ring->last_tx_tso && !skb_is_gso(skb))
- count++;
-
- count += TXD_USE_COUNT(len, max_txd_pwr);
-
- if (adapter->pcix_82544)
- count++;
-
- /* work-around for errata 10 and it applies to all controllers
- * in PCI-X mode, so add one more descriptor to the count
- */
- if (unlikely((hw->bus_type == e1000_bus_type_pcix) &&
- (len > 2015)))
- count++;
-
- nr_frags = skb_shinfo(skb)->nr_frags;
- for (f = 0; f < nr_frags; f++)
- count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size,
- max_txd_pwr);
- if (adapter->pcix_82544)
- count += nr_frags;
-
-
- if (hw->tx_pkt_filtering &&
- (hw->mac_type == e1000_82573))
- e1000_transfer_dhcp_info(adapter, skb);
-
- if (!spin_trylock_irqsave(&tx_ring->tx_lock, flags))
- /* Collision - tell upper layer to requeue */
- return NETDEV_TX_LOCKED;
-
- /* need: count + 2 desc gap to keep tail from touching
- * head, otherwise try next time */
- if (unlikely(e1000_maybe_stop_tx(netdev, tx_ring, count + 2))) {
- spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
- return NETDEV_TX_BUSY;
- }
-
- if (unlikely(hw->mac_type == e1000_82547)) {
- if (unlikely(e1000_82547_fifo_workaround(adapter, skb))) {
- netif_stop_queue(netdev);
- mod_timer(&adapter->tx_fifo_stall_timer, jiffies + 1);
- spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
- return NETDEV_TX_BUSY;
- }
- }
-
- if (unlikely(adapter->vlgrp && vlan_tx_tag_present(skb))) {
- tx_flags |= E1000_TX_FLAGS_VLAN;
- tx_flags |= (vlan_tx_tag_get(skb) << E1000_TX_FLAGS_VLAN_SHIFT);
- }
-
- first = tx_ring->next_to_use;
-
- tso = e1000_tso(adapter, tx_ring, skb);
- if (tso < 0) {
- dev_kfree_skb_any(skb);
- spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
- return NETDEV_TX_OK;
- }
-
- if (likely(tso)) {
- tx_ring->last_tx_tso = 1;
- tx_flags |= E1000_TX_FLAGS_TSO;
- } else if (likely(e1000_tx_csum(adapter, tx_ring, skb)))
- tx_flags |= E1000_TX_FLAGS_CSUM;
-
- /* Old method was to assume IPv4 packet by default if TSO was enabled.
- * 82571 hardware supports TSO capabilities for IPv6 as well...
- * no longer assume, we must. */
- if (likely(skb->protocol == htons(ETH_P_IP)))
- tx_flags |= E1000_TX_FLAGS_IPV4;
-
- e1000_tx_queue(adapter, tx_ring, tx_flags,
- e1000_tx_map(adapter, tx_ring, skb, first,
- max_per_txd, nr_frags, mss));
-
- netdev->trans_start = jiffies;
-
- /* Make sure there is space in the ring for the next send. */
- e1000_maybe_stop_tx(netdev, tx_ring, MAX_SKB_FRAGS + 2);
-
- spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
- return NETDEV_TX_OK;
-}
-
-/**
- * e1000_tx_timeout - Respond to a Tx Hang
- * @netdev: network interface device structure
- **/
-
-static void e1000_tx_timeout(struct net_device *netdev)
-{
- struct e1000_adapter *adapter = netdev_priv(netdev);
-
- /* Do the reset outside of interrupt context */
- adapter->tx_timeout_count++;
- schedule_work(&adapter->reset_task);
-}
-
-static void e1000_reset_task(struct work_struct *work)
-{
- struct e1000_adapter *adapter =
- container_of(work, struct e1000_adapter, reset_task);
-
- e1000_reinit_locked(adapter);
-}
-
-/**
- * e1000_get_stats - Get System Network Statistics
- * @netdev: network interface device structure
- *
- * Returns the address of the device statistics structure.
- * The statistics are actually updated from the timer callback.
- **/
-
-static struct net_device_stats *e1000_get_stats(struct net_device *netdev)
-{
- struct e1000_adapter *adapter = netdev_priv(netdev);
-
- /* only return the current stats */
- return &adapter->net_stats;
-}
-
-/**
- * e1000_change_mtu - Change the Maximum Transfer Unit
- * @netdev: network interface device structure
- * @new_mtu: new value for maximum frame size
- *
- * Returns 0 on success, negative on failure
- **/
-
-static int e1000_change_mtu(struct net_device *netdev, int new_mtu)
-{
- struct e1000_adapter *adapter = netdev_priv(netdev);
- struct e1000_hw *hw = &adapter->hw;
- int max_frame = new_mtu + ENET_HEADER_SIZE + ETHERNET_FCS_SIZE;
- u16 eeprom_data = 0;
-
- if ((max_frame < MINIMUM_ETHERNET_FRAME_SIZE) ||
- (max_frame > MAX_JUMBO_FRAME_SIZE)) {
- DPRINTK(PROBE, ERR, "Invalid MTU setting\n");
- return -EINVAL;
- }
-
- /* Adapter-specific max frame size limits. */
- switch (hw->mac_type) {
- case e1000_undefined ... e1000_82542_rev2_1:
- case e1000_ich8lan:
- if (max_frame > MAXIMUM_ETHERNET_FRAME_SIZE) {
- DPRINTK(PROBE, ERR, "Jumbo Frames not supported.\n");
- return -EINVAL;
- }
- break;
- case e1000_82573:
- /* Jumbo Frames not supported if:
- * - this is not an 82573L device
- * - ASPM is enabled in any way (0x1A bits 3:2) */
- e1000_read_eeprom(hw, EEPROM_INIT_3GIO_3, 1,
- &eeprom_data);
- if ((hw->device_id != E1000_DEV_ID_82573L) ||
- (eeprom_data & EEPROM_WORD1A_ASPM_MASK)) {
- if (max_frame > MAXIMUM_ETHERNET_FRAME_SIZE) {
- DPRINTK(PROBE, ERR,
- "Jumbo Frames not supported.\n");
- return -EINVAL;
- }
- break;
- }
- /* ERT will be enabled later to enable wire speed receives */
-
- /* fall through to get support */
- case e1000_82571:
- case e1000_82572:
- case e1000_80003es2lan:
-#define MAX_STD_JUMBO_FRAME_SIZE 9234
- if (max_frame > MAX_STD_JUMBO_FRAME_SIZE) {
- DPRINTK(PROBE, ERR, "MTU > 9216 not supported.\n");
- return -EINVAL;
- }
- break;
- default:
- /* Capable of supporting up to MAX_JUMBO_FRAME_SIZE limit. */
- break;
- }
-
- /* NOTE: netdev_alloc_skb reserves 16 bytes, and typically NET_IP_ALIGN
- * means we reserve 2 more, this pushes us to allocate from the next
- * larger slab size
- * i.e. RXBUFFER_2048 --> size-4096 slab */
-
- if (max_frame <= E1000_RXBUFFER_256)
- adapter->rx_buffer_len = E1000_RXBUFFER_256;
- else if (max_frame <= E1000_RXBUFFER_512)
- adapter->rx_buffer_len = E1000_RXBUFFER_512;
- else if (max_frame <= E1000_RXBUFFER_1024)
- adapter->rx_buffer_len = E1000_RXBUFFER_1024;
- else if (max_frame <= E1000_RXBUFFER_2048)
- adapter->rx_buffer_len = E1000_RXBUFFER_2048;
- else if (max_frame <= E1000_RXBUFFER_4096)
- adapter->rx_buffer_len = E1000_RXBUFFER_4096;
- else if (max_frame <= E1000_RXBUFFER_8192)
- adapter->rx_buffer_len = E1000_RXBUFFER_8192;
- else if (max_frame <= E1000_RXBUFFER_16384)
- adapter->rx_buffer_len = E1000_RXBUFFER_16384;
-
- /* adjust allocation if LPE protects us, and we aren't using SBP */
- if (!hw->tbi_compatibility_on &&
- ((max_frame == MAXIMUM_ETHERNET_FRAME_SIZE) ||
- (max_frame == MAXIMUM_ETHERNET_VLAN_SIZE)))
- adapter->rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE;
-
- netdev->mtu = new_mtu;
- hw->max_frame_size = max_frame;
-
- if (netif_running(netdev))
- e1000_reinit_locked(adapter);
-
- return 0;
-}
-
-/**
- * e1000_update_stats - Update the board statistics counters
- * @adapter: board private structure
- **/
-
-void e1000_update_stats(struct e1000_adapter *adapter)
-{
- struct e1000_hw *hw = &adapter->hw;
- struct pci_dev *pdev = adapter->pdev;
- unsigned long flags;
- u16 phy_tmp;
-
-#define PHY_IDLE_ERROR_COUNT_MASK 0x00FF
-
- /*
- * Prevent stats update while adapter is being reset, or if the pci
- * connection is down.
- */
- if (adapter->link_speed == 0)
- return;
- if (pci_channel_offline(pdev))
- return;
-
- spin_lock_irqsave(&adapter->stats_lock, flags);
-
- /* these counters are modified from e1000_tbi_adjust_stats,
- * called from the interrupt context, so they must only
- * be written while holding adapter->stats_lock
- */
-
- adapter->stats.crcerrs += er32(CRCERRS);
- adapter->stats.gprc += er32(GPRC);
- adapter->stats.gorcl += er32(GORCL);
- adapter->stats.gorch += er32(GORCH);
- adapter->stats.bprc += er32(BPRC);
- adapter->stats.mprc += er32(MPRC);
- adapter->stats.roc += er32(ROC);
-
- if (hw->mac_type != e1000_ich8lan) {
- adapter->stats.prc64 += er32(PRC64);
- adapter->stats.prc127 += er32(PRC127);
- adapter->stats.prc255 += er32(PRC255);
- adapter->stats.prc511 += er32(PRC511);
- adapter->stats.prc1023 += er32(PRC1023);
- adapter->stats.prc1522 += er32(PRC1522);
- }
-
- adapter->stats.symerrs += er32(SYMERRS);
- adapter->stats.mpc += er32(MPC);
- adapter->stats.scc += er32(SCC);
- adapter->stats.ecol += er32(ECOL);
- adapter->stats.mcc += er32(MCC);
- adapter->stats.latecol += er32(LATECOL);
- adapter->stats.dc += er32(DC);
- adapter->stats.sec += er32(SEC);
- adapter->stats.rlec += er32(RLEC);
- adapter->stats.xonrxc += er32(XONRXC);
- adapter->stats.xontxc += er32(XONTXC);
- adapter->stats.xoffrxc += er32(XOFFRXC);
- adapter->stats.xofftxc += er32(XOFFTXC);
- adapter->stats.fcruc += er32(FCRUC);
- adapter->stats.gptc += er32(GPTC);
- adapter->stats.gotcl += er32(GOTCL);
- adapter->stats.gotch += er32(GOTCH);
- adapter->stats.rnbc += er32(RNBC);
- adapter->stats.ruc += er32(RUC);
- adapter->stats.rfc += er32(RFC);
- adapter->stats.rjc += er32(RJC);
- adapter->stats.torl += er32(TORL);
- adapter->stats.torh += er32(TORH);
- adapter->stats.totl += er32(TOTL);
- adapter->stats.toth += er32(TOTH);
- adapter->stats.tpr += er32(TPR);
-
- if (hw->mac_type != e1000_ich8lan) {
- adapter->stats.ptc64 += er32(PTC64);
- adapter->stats.ptc127 += er32(PTC127);
- adapter->stats.ptc255 += er32(PTC255);
- adapter->stats.ptc511 += er32(PTC511);
- adapter->stats.ptc1023 += er32(PTC1023);
- adapter->stats.ptc1522 += er32(PTC1522);
- }
-
- adapter->stats.mptc += er32(MPTC);
- adapter->stats.bptc += er32(BPTC);
-
- /* used for adaptive IFS */
-
- hw->tx_packet_delta = er32(TPT);
- adapter->stats.tpt += hw->tx_packet_delta;
- hw->collision_delta = er32(COLC);
- adapter->stats.colc += hw->collision_delta;
-
- if (hw->mac_type >= e1000_82543) {
- adapter->stats.algnerrc += er32(ALGNERRC);
- adapter->stats.rxerrc += er32(RXERRC);
- adapter->stats.tncrs += er32(TNCRS);
- adapter->stats.cexterr += er32(CEXTERR);
- adapter->stats.tsctc += er32(TSCTC);
- adapter->stats.tsctfc += er32(TSCTFC);
- }
- if (hw->mac_type > e1000_82547_rev_2) {
- adapter->stats.iac += er32(IAC);
- adapter->stats.icrxoc += er32(ICRXOC);
-
- if (hw->mac_type != e1000_ich8lan) {
- adapter->stats.icrxptc += er32(ICRXPTC);
- adapter->stats.icrxatc += er32(ICRXATC);
- adapter->stats.ictxptc += er32(ICTXPTC);
- adapter->stats.ictxatc += er32(ICTXATC);
- adapter->stats.ictxqec += er32(ICTXQEC);
- adapter->stats.ictxqmtc += er32(ICTXQMTC);
- adapter->stats.icrxdmtc += er32(ICRXDMTC);
- }
- }
-
- /* Fill out the OS statistics structure */
- adapter->net_stats.multicast = adapter->stats.mprc;
- adapter->net_stats.collisions = adapter->stats.colc;
-
- /* Rx Errors */
-
- /* RLEC on some newer hardware can be incorrect so build
- * our own version based on RUC and ROC */
- adapter->net_stats.rx_errors = adapter->stats.rxerrc +
- adapter->stats.crcerrs + adapter->stats.algnerrc +
- adapter->stats.ruc + adapter->stats.roc +
- adapter->stats.cexterr;
- adapter->stats.rlerrc = adapter->stats.ruc + adapter->stats.roc;
- adapter->net_stats.rx_length_errors = adapter->stats.rlerrc;
- adapter->net_stats.rx_crc_errors = adapter->stats.crcerrs;
- adapter->net_stats.rx_frame_errors = adapter->stats.algnerrc;
- adapter->net_stats.rx_missed_errors = adapter->stats.mpc;
-
- /* Tx Errors */
- adapter->stats.txerrc = adapter->stats.ecol + adapter->stats.latecol;
- adapter->net_stats.tx_errors = adapter->stats.txerrc;
- adapter->net_stats.tx_aborted_errors = adapter->stats.ecol;
- adapter->net_stats.tx_window_errors = adapter->stats.latecol;
- adapter->net_stats.tx_carrier_errors = adapter->stats.tncrs;
- if (hw->bad_tx_carr_stats_fd &&
- adapter->link_duplex == FULL_DUPLEX) {
- adapter->net_stats.tx_carrier_errors = 0;
- adapter->stats.tncrs = 0;
- }
-
- /* Tx Dropped needs to be maintained elsewhere */
-
- /* Phy Stats */
- if (hw->media_type == e1000_media_type_copper) {
- if ((adapter->link_speed == SPEED_1000) &&
- (!e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_tmp))) {
- phy_tmp &= PHY_IDLE_ERROR_COUNT_MASK;
- adapter->phy_stats.idle_errors += phy_tmp;
- }
-
- if ((hw->mac_type <= e1000_82546) &&
- (hw->phy_type == e1000_phy_m88) &&
- !e1000_read_phy_reg(hw, M88E1000_RX_ERR_CNTR, &phy_tmp))
- adapter->phy_stats.receive_errors += phy_tmp;
- }
-
- /* Management Stats */
- if (hw->has_smbus) {
- adapter->stats.mgptc += er32(MGTPTC);
- adapter->stats.mgprc += er32(MGTPRC);
- adapter->stats.mgpdc += er32(MGTPDC);
- }
-
- spin_unlock_irqrestore(&adapter->stats_lock, flags);
-}
-
-/**
- * e1000_intr_msi - Interrupt Handler
- * @irq: interrupt number
- * @data: pointer to a network interface device structure
- **/
-
-static irqreturn_t e1000_intr_msi(int irq, void *data)
-{
- struct net_device *netdev = data;
- struct e1000_adapter *adapter = netdev_priv(netdev);
- struct e1000_hw *hw = &adapter->hw;
- u32 icr = er32(ICR);
-
- /* in NAPI mode read ICR disables interrupts using IAM */
-
- if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) {
- hw->get_link_status = 1;
- /* 80003ES2LAN workaround-- For packet buffer work-around on
- * link down event; disable receives here in the ISR and reset
- * adapter in watchdog */
- if (netif_carrier_ok(netdev) &&
- (hw->mac_type == e1000_80003es2lan)) {
- /* disable receives */
- u32 rctl = er32(RCTL);
- ew32(RCTL, rctl & ~E1000_RCTL_EN);
- }
- /* guard against interrupt when we're going down */
- if (!test_bit(__E1000_DOWN, &adapter->flags))
- mod_timer(&adapter->watchdog_timer, jiffies + 1);
- }
-
- if (likely(netif_rx_schedule_prep(&adapter->napi))) {
- adapter->total_tx_bytes = 0;
- adapter->total_tx_packets = 0;
- adapter->total_rx_bytes = 0;
- adapter->total_rx_packets = 0;
- __netif_rx_schedule(&adapter->napi);
- } else
- e1000_irq_enable(adapter);
-
- return IRQ_HANDLED;
-}
-
-/**
- * e1000_intr - Interrupt Handler
- * @irq: interrupt number
- * @data: pointer to a network interface device structure
- **/
-
-static irqreturn_t e1000_intr(int irq, void *data)
-{
- struct net_device *netdev = data;
- struct e1000_adapter *adapter = netdev_priv(netdev);
- struct e1000_hw *hw = &adapter->hw;
- u32 rctl, icr = er32(ICR);
-
- if (unlikely((!icr) || test_bit(__E1000_RESETTING, &adapter->flags)))
- return IRQ_NONE; /* Not our interrupt */
-
- /* IMS will not auto-mask if INT_ASSERTED is not set, and if it is
- * not set, then the adapter didn't send an interrupt */
- if (unlikely(hw->mac_type >= e1000_82571 &&
- !(icr & E1000_ICR_INT_ASSERTED)))
- return IRQ_NONE;
-
- /* Interrupt Auto-Mask...upon reading ICR, interrupts are masked. No
- * need for the IMC write */
-
- if (unlikely(icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC))) {
- hw->get_link_status = 1;
- /* 80003ES2LAN workaround--
- * For packet buffer work-around on link down event;
- * disable receives here in the ISR and
- * reset adapter in watchdog
- */
- if (netif_carrier_ok(netdev) &&
- (hw->mac_type == e1000_80003es2lan)) {
- /* disable receives */
- rctl = er32(RCTL);
- ew32(RCTL, rctl & ~E1000_RCTL_EN);
- }
- /* guard against interrupt when we're going down */
- if (!test_bit(__E1000_DOWN, &adapter->flags))
- mod_timer(&adapter->watchdog_timer, jiffies + 1);
- }
-
- if (unlikely(hw->mac_type < e1000_82571)) {
- /* disable interrupts, without the synchronize_irq bit */
- ew32(IMC, ~0);
- E1000_WRITE_FLUSH();
- }
- if (likely(netif_rx_schedule_prep(&adapter->napi))) {
- adapter->total_tx_bytes = 0;
- adapter->total_tx_packets = 0;
- adapter->total_rx_bytes = 0;
- adapter->total_rx_packets = 0;
- __netif_rx_schedule(&adapter->napi);
- } else
- /* this really should not happen! if it does it is basically a
- * bug, but not a hard error, so enable ints and continue */
- e1000_irq_enable(adapter);
-
- return IRQ_HANDLED;
-}
-
-/**
- * e1000_clean - NAPI Rx polling callback
- * @adapter: board private structure
- **/
-static int e1000_clean(struct napi_struct *napi, int budget)
-{
- struct e1000_adapter *adapter = container_of(napi, struct e1000_adapter, napi);
- struct net_device *poll_dev = adapter->netdev;
- int tx_cleaned = 0, work_done = 0;
-
- adapter = netdev_priv(poll_dev);
-
- /* e1000_clean is called per-cpu. This lock protects
- * tx_ring[0] from being cleaned by multiple cpus
- * simultaneously. A failure obtaining the lock means
- * tx_ring[0] is currently being cleaned anyway. */
- if (spin_trylock(&adapter->tx_queue_lock)) {
- tx_cleaned = e1000_clean_tx_irq(adapter,
- &adapter->tx_ring[0]);
- spin_unlock(&adapter->tx_queue_lock);
- }
-
- adapter->clean_rx(adapter, &adapter->rx_ring[0],
- &work_done, budget);
-
- if (tx_cleaned)
- work_done = budget;
-
- /* If budget not fully consumed, exit the polling mode */
- if (work_done < budget) {
- if (likely(adapter->itr_setting & 3))
- e1000_set_itr(adapter);
- netif_rx_complete(napi);
- e1000_irq_enable(adapter);
- }
-
- return work_done;
-}
-
-/**
- * e1000_clean_tx_irq - Reclaim resources after transmit completes
- * @adapter: board private structure
- **/
-static bool e1000_clean_tx_irq(struct e1000_adapter *adapter,
- struct e1000_tx_ring *tx_ring)
-{
- struct e1000_hw *hw = &adapter->hw;
- struct net_device *netdev = adapter->netdev;
- struct e1000_tx_desc *tx_desc, *eop_desc;
- struct e1000_buffer *buffer_info;
- unsigned int i, eop;
- unsigned int count = 0;
- bool cleaned = false;
- unsigned int total_tx_bytes=0, total_tx_packets=0;
-
- i = tx_ring->next_to_clean;
- eop = tx_ring->buffer_info[i].next_to_watch;
- eop_desc = E1000_TX_DESC(*tx_ring, eop);
-
- while (eop_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) {
- for (cleaned = false; !cleaned; ) {
- tx_desc = E1000_TX_DESC(*tx_ring, i);
- buffer_info = &tx_ring->buffer_info[i];
- cleaned = (i == eop);
-
- if (cleaned) {
- struct sk_buff *skb = buffer_info->skb;
- unsigned int segs, bytecount;
- segs = skb_shinfo(skb)->gso_segs ?: 1;
- /* multiply data chunks by size of headers */
- bytecount = ((segs - 1) * skb_headlen(skb)) +
- skb->len;
- total_tx_packets += segs;
- total_tx_bytes += bytecount;
- }
- e1000_unmap_and_free_tx_resource(adapter, buffer_info);
- tx_desc->upper.data = 0;
-
- if (unlikely(++i == tx_ring->count)) i = 0;
- }
-
- eop = tx_ring->buffer_info[i].next_to_watch;
- eop_desc = E1000_TX_DESC(*tx_ring, eop);
-#define E1000_TX_WEIGHT 64
- /* weight of a sort for tx, to avoid endless transmit cleanup */
- if (count++ == E1000_TX_WEIGHT)
- break;
- }
-
- tx_ring->next_to_clean = i;
-
-#define TX_WAKE_THRESHOLD 32
- if (unlikely(cleaned && netif_carrier_ok(netdev) &&
- E1000_DESC_UNUSED(tx_ring) >= TX_WAKE_THRESHOLD)) {
- /* Make sure that anybody stopping the queue after this
- * sees the new next_to_clean.
- */
- smp_mb();
- if (netif_queue_stopped(netdev)) {
- netif_wake_queue(netdev);
- ++adapter->restart_queue;
- }
- }
-
- if (adapter->detect_tx_hung) {
- /* Detect a transmit hang in hardware, this serializes the
- * check with the clearing of time_stamp and movement of i */
- adapter->detect_tx_hung = false;
- if (tx_ring->buffer_info[eop].dma &&
- time_after(jiffies, tx_ring->buffer_info[eop].time_stamp +
- (adapter->tx_timeout_factor * HZ))
- && !(er32(STATUS) & E1000_STATUS_TXOFF)) {
-
- /* detected Tx unit hang */
- DPRINTK(DRV, ERR, "Detected Tx Unit Hang\n"
- " Tx Queue <%lu>\n"
- " TDH <%x>\n"
- " TDT <%x>\n"
- " next_to_use <%x>\n"
- " next_to_clean <%x>\n"
- "buffer_info[next_to_clean]\n"
- " time_stamp <%lx>\n"
- " next_to_watch <%x>\n"
- " jiffies <%lx>\n"
- " next_to_watch.status <%x>\n",
- (unsigned long)((tx_ring - adapter->tx_ring) /
- sizeof(struct e1000_tx_ring)),
- readl(hw->hw_addr + tx_ring->tdh),
- readl(hw->hw_addr + tx_ring->tdt),
- tx_ring->next_to_use,
- tx_ring->next_to_clean,
- tx_ring->buffer_info[eop].time_stamp,
- eop,
- jiffies,
- eop_desc->upper.fields.status);
- netif_stop_queue(netdev);
- }
- }
- adapter->total_tx_bytes += total_tx_bytes;
- adapter->total_tx_packets += total_tx_packets;
- adapter->net_stats.tx_bytes += total_tx_bytes;
- adapter->net_stats.tx_packets += total_tx_packets;
- return cleaned;
-}
-
-/**
- * e1000_rx_checksum - Receive Checksum Offload for 82543
- * @adapter: board private structure
- * @status_err: receive descriptor status and error fields
- * @csum: receive descriptor csum field
- * @sk_buff: socket buffer with received data
- **/
-
-static void e1000_rx_checksum(struct e1000_adapter *adapter, u32 status_err,
- u32 csum, struct sk_buff *skb)
-{
- struct e1000_hw *hw = &adapter->hw;
- u16 status = (u16)status_err;
- u8 errors = (u8)(status_err >> 24);
- skb->ip_summed = CHECKSUM_NONE;
-
- /* 82543 or newer only */
- if (unlikely(hw->mac_type < e1000_82543)) return;
- /* Ignore Checksum bit is set */
- if (unlikely(status & E1000_RXD_STAT_IXSM)) return;
- /* TCP/UDP checksum error bit is set */
- if (unlikely(errors & E1000_RXD_ERR_TCPE)) {
- /* let the stack verify checksum errors */
- adapter->hw_csum_err++;
- return;
- }
- /* TCP/UDP Checksum has not been calculated */
- if (hw->mac_type <= e1000_82547_rev_2) {
- if (!(status & E1000_RXD_STAT_TCPCS))
- return;
- } else {
- if (!(status & (E1000_RXD_STAT_TCPCS | E1000_RXD_STAT_UDPCS)))
- return;
- }
- /* It must be a TCP or UDP packet with a valid checksum */
- if (likely(status & E1000_RXD_STAT_TCPCS)) {
- /* TCP checksum is good */
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- } else if (hw->mac_type > e1000_82547_rev_2) {
- /* IP fragment with UDP payload */
- /* Hardware complements the payload checksum, so we undo it
- * and then put the value in host order for further stack use.
- */
- __sum16 sum = (__force __sum16)htons(csum);
- skb->csum = csum_unfold(~sum);
- skb->ip_summed = CHECKSUM_COMPLETE;
- }
- adapter->hw_csum_good++;
-}
-
-/**
- * e1000_clean_rx_irq - Send received data up the network stack; legacy
- * @adapter: board private structure
- **/
-static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
- struct e1000_rx_ring *rx_ring,
- int *work_done, int work_to_do)
-{
- struct e1000_hw *hw = &adapter->hw;
- struct net_device *netdev = adapter->netdev;
- struct pci_dev *pdev = adapter->pdev;
- struct e1000_rx_desc *rx_desc, *next_rxd;
- struct e1000_buffer *buffer_info, *next_buffer;
- unsigned long flags;
- u32 length;
- u8 last_byte;
- unsigned int i;
- int cleaned_count = 0;
- bool cleaned = false;
- unsigned int total_rx_bytes=0, total_rx_packets=0;
-
- i = rx_ring->next_to_clean;
- rx_desc = E1000_RX_DESC(*rx_ring, i);
- buffer_info = &rx_ring->buffer_info[i];
-
- while (rx_desc->status & E1000_RXD_STAT_DD) {
- struct sk_buff *skb;
- u8 status;
-
- if (*work_done >= work_to_do)
- break;
- (*work_done)++;
-
- status = rx_desc->status;
- skb = buffer_info->skb;
- buffer_info->skb = NULL;
-
- prefetch(skb->data - NET_IP_ALIGN);
-
- if (++i == rx_ring->count) i = 0;
- next_rxd = E1000_RX_DESC(*rx_ring, i);
- prefetch(next_rxd);
-
- next_buffer = &rx_ring->buffer_info[i];
-
- cleaned = true;
- cleaned_count++;
- pci_unmap_single(pdev,
- buffer_info->dma,
- buffer_info->length,
- PCI_DMA_FROMDEVICE);
-
- length = le16_to_cpu(rx_desc->length);
-
- if (unlikely(!(status & E1000_RXD_STAT_EOP))) {
- /* All receives must fit into a single buffer */
- E1000_DBG("%s: Receive packet consumed multiple"
- " buffers\n", netdev->name);
- /* recycle */
- buffer_info->skb = skb;
- goto next_desc;
- }
-
- if (unlikely(rx_desc->errors & E1000_RXD_ERR_FRAME_ERR_MASK)) {
- last_byte = *(skb->data + length - 1);
- if (TBI_ACCEPT(hw, status, rx_desc->errors, length,
- last_byte)) {
- spin_lock_irqsave(&adapter->stats_lock, flags);
- e1000_tbi_adjust_stats(hw, &adapter->stats,
- length, skb->data);
- spin_unlock_irqrestore(&adapter->stats_lock,
- flags);
- length--;
- } else {
- /* recycle */
- buffer_info->skb = skb;
- goto next_desc;
- }
- }
-
- /* adjust length to remove Ethernet CRC, this must be
- * done after the TBI_ACCEPT workaround above */
- length -= 4;
-
- /* probably a little skewed due to removing CRC */
- total_rx_bytes += length;
- total_rx_packets++;
-
- /* code added for copybreak, this should improve
- * performance for small packets with large amounts
- * of reassembly being done in the stack */
- if (length < copybreak) {
- struct sk_buff *new_skb =
- netdev_alloc_skb(netdev, length + NET_IP_ALIGN);
- if (new_skb) {
- skb_reserve(new_skb, NET_IP_ALIGN);
- skb_copy_to_linear_data_offset(new_skb,
- -NET_IP_ALIGN,
- (skb->data -
- NET_IP_ALIGN),
- (length +
- NET_IP_ALIGN));
- /* save the skb in buffer_info as good */
- buffer_info->skb = skb;
- skb = new_skb;
- }
- /* else just continue with the old one */
- }
- /* end copybreak code */
- skb_put(skb, length);
-
- /* Receive Checksum Offload */
- e1000_rx_checksum(adapter,
- (u32)(status) |
- ((u32)(rx_desc->errors) << 24),
- le16_to_cpu(rx_desc->csum), skb);
-
- skb->protocol = eth_type_trans(skb, netdev);
-
- if (unlikely(adapter->vlgrp &&
- (status & E1000_RXD_STAT_VP))) {
- vlan_hwaccel_receive_skb(skb, adapter->vlgrp,
- le16_to_cpu(rx_desc->special));
- } else {
- netif_receive_skb(skb);
- }
-
-next_desc:
- rx_desc->status = 0;
-
- /* return some buffers to hardware, one at a time is too slow */
- if (unlikely(cleaned_count >= E1000_RX_BUFFER_WRITE)) {
- adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count);
- cleaned_count = 0;
- }
-
- /* use prefetched values */
- rx_desc = next_rxd;
- buffer_info = next_buffer;
- }
- rx_ring->next_to_clean = i;
-
- cleaned_count = E1000_DESC_UNUSED(rx_ring);
- if (cleaned_count)
- adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count);
-
- adapter->total_rx_packets += total_rx_packets;
- adapter->total_rx_bytes += total_rx_bytes;
- adapter->net_stats.rx_bytes += total_rx_bytes;
- adapter->net_stats.rx_packets += total_rx_packets;
- return cleaned;
-}
-
-/**
- * e1000_alloc_rx_buffers - Replace used receive buffers; legacy & extended
- * @adapter: address of board private structure
- **/
-
-static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter,
- struct e1000_rx_ring *rx_ring,
- int cleaned_count)
-{
- struct e1000_hw *hw = &adapter->hw;
- struct net_device *netdev = adapter->netdev;
- struct pci_dev *pdev = adapter->pdev;
- struct e1000_rx_desc *rx_desc;
- struct e1000_buffer *buffer_info;
- struct sk_buff *skb;
- unsigned int i;
- unsigned int bufsz = adapter->rx_buffer_len + NET_IP_ALIGN;
-
- i = rx_ring->next_to_use;
- buffer_info = &rx_ring->buffer_info[i];
-
- while (cleaned_count--) {
- skb = buffer_info->skb;
- if (skb) {
- skb_trim(skb, 0);
- goto map_skb;
- }
-
- skb = netdev_alloc_skb(netdev, bufsz);
- if (unlikely(!skb)) {
- /* Better luck next round */
- adapter->alloc_rx_buff_failed++;
- break;
- }
-
- /* Fix for errata 23, can't cross 64kB boundary */
- if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) {
- struct sk_buff *oldskb = skb;
- DPRINTK(RX_ERR, ERR, "skb align check failed: %u bytes "
- "at %p\n", bufsz, skb->data);
- /* Try again, without freeing the previous */
- skb = netdev_alloc_skb(netdev, bufsz);
- /* Failed allocation, critical failure */
- if (!skb) {
- dev_kfree_skb(oldskb);
- break;
- }
-
- if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) {
- /* give up */
- dev_kfree_skb(skb);
- dev_kfree_skb(oldskb);
- break; /* while !buffer_info->skb */
- }
-
- /* Use new allocation */
- dev_kfree_skb(oldskb);
- }
- /* Make buffer alignment 2 beyond a 16 byte boundary
- * this will result in a 16 byte aligned IP header after
- * the 14 byte MAC header is removed
- */
- skb_reserve(skb, NET_IP_ALIGN);
-
- buffer_info->skb = skb;
- buffer_info->length = adapter->rx_buffer_len;
-map_skb:
- buffer_info->dma = pci_map_single(pdev,
- skb->data,
- adapter->rx_buffer_len,
- PCI_DMA_FROMDEVICE);
-
- /* Fix for errata 23, can't cross 64kB boundary */
- if (!e1000_check_64k_bound(adapter,
- (void *)(unsigned long)buffer_info->dma,
- adapter->rx_buffer_len)) {
- DPRINTK(RX_ERR, ERR,
- "dma align check failed: %u bytes at %p\n",
- adapter->rx_buffer_len,
- (void *)(unsigned long)buffer_info->dma);
- dev_kfree_skb(skb);
- buffer_info->skb = NULL;
-
- pci_unmap_single(pdev, buffer_info->dma,
- adapter->rx_buffer_len,
- PCI_DMA_FROMDEVICE);
-
- break; /* while !buffer_info->skb */
- }
- rx_desc = E1000_RX_DESC(*rx_ring, i);
- rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
-
- if (unlikely(++i == rx_ring->count))
- i = 0;
- buffer_info = &rx_ring->buffer_info[i];
- }
-
- if (likely(rx_ring->next_to_use != i)) {
- rx_ring->next_to_use = i;
- if (unlikely(i-- == 0))
- i = (rx_ring->count - 1);
-
- /* Force memory writes to complete before letting h/w
- * know there are new descriptors to fetch. (Only
- * applicable for weak-ordered memory model archs,
- * such as IA-64). */
- wmb();
- writel(i, hw->hw_addr + rx_ring->rdt);
- }
-}
-
-/**
- * e1000_smartspeed - Workaround for SmartSpeed on 82541 and 82547 controllers.
- * @adapter:
- **/
-
-static void e1000_smartspeed(struct e1000_adapter *adapter)
-{
- struct e1000_hw *hw = &adapter->hw;
- u16 phy_status;
- u16 phy_ctrl;
-
- if ((hw->phy_type != e1000_phy_igp) || !hw->autoneg ||
- !(hw->autoneg_advertised & ADVERTISE_1000_FULL))
- return;
-
- if (adapter->smartspeed == 0) {
- /* If Master/Slave config fault is asserted twice,
- * we assume back-to-back */
- e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_status);
- if (!(phy_status & SR_1000T_MS_CONFIG_FAULT)) return;
- e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_status);
- if (!(phy_status & SR_1000T_MS_CONFIG_FAULT)) return;
- e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_ctrl);
- if (phy_ctrl & CR_1000T_MS_ENABLE) {
- phy_ctrl &= ~CR_1000T_MS_ENABLE;
- e1000_write_phy_reg(hw, PHY_1000T_CTRL,
- phy_ctrl);
- adapter->smartspeed++;
- if (!e1000_phy_setup_autoneg(hw) &&
- !e1000_read_phy_reg(hw, PHY_CTRL,
- &phy_ctrl)) {
- phy_ctrl |= (MII_CR_AUTO_NEG_EN |
- MII_CR_RESTART_AUTO_NEG);
- e1000_write_phy_reg(hw, PHY_CTRL,
- phy_ctrl);
- }
- }
- return;
- } else if (adapter->smartspeed == E1000_SMARTSPEED_DOWNSHIFT) {
- /* If still no link, perhaps using 2/3 pair cable */
- e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_ctrl);
- phy_ctrl |= CR_1000T_MS_ENABLE;
- e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_ctrl);
- if (!e1000_phy_setup_autoneg(hw) &&
- !e1000_read_phy_reg(hw, PHY_CTRL, &phy_ctrl)) {
- phy_ctrl |= (MII_CR_AUTO_NEG_EN |
- MII_CR_RESTART_AUTO_NEG);
- e1000_write_phy_reg(hw, PHY_CTRL, phy_ctrl);
- }
- }
- /* Restart process after E1000_SMARTSPEED_MAX iterations */
- if (adapter->smartspeed++ == E1000_SMARTSPEED_MAX)
- adapter->smartspeed = 0;
-}
-
-/**
- * e1000_ioctl -
- * @netdev:
- * @ifreq:
- * @cmd:
- **/
-
-static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
-{
- switch (cmd) {
- case SIOCGMIIPHY:
- case SIOCGMIIREG:
- case SIOCSMIIREG:
- return e1000_mii_ioctl(netdev, ifr, cmd);
- default:
- return -EOPNOTSUPP;
- }
-}
-
-/**
- * e1000_mii_ioctl -
- * @netdev:
- * @ifreq:
- * @cmd:
- **/
-
-static int e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr,
- int cmd)
-{
- struct e1000_adapter *adapter = netdev_priv(netdev);
- struct e1000_hw *hw = &adapter->hw;
- struct mii_ioctl_data *data = if_mii(ifr);
- int retval;
- u16 mii_reg;
- u16 spddplx;
- unsigned long flags;
-
- if (hw->media_type != e1000_media_type_copper)
- return -EOPNOTSUPP;
-
- switch (cmd) {
- case SIOCGMIIPHY:
- data->phy_id = hw->phy_addr;
- break;
- case SIOCGMIIREG:
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
- spin_lock_irqsave(&adapter->stats_lock, flags);
- if (e1000_read_phy_reg(hw, data->reg_num & 0x1F,
- &data->val_out)) {
- spin_unlock_irqrestore(&adapter->stats_lock, flags);
- return -EIO;
- }
- spin_unlock_irqrestore(&adapter->stats_lock, flags);
- break;
- case SIOCSMIIREG:
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
- if (data->reg_num & ~(0x1F))
- return -EFAULT;
- mii_reg = data->val_in;
- spin_lock_irqsave(&adapter->stats_lock, flags);
- if (e1000_write_phy_reg(hw, data->reg_num,
- mii_reg)) {
- spin_unlock_irqrestore(&adapter->stats_lock, flags);
- return -EIO;
- }
- spin_unlock_irqrestore(&adapter->stats_lock, flags);
- if (hw->media_type == e1000_media_type_copper) {
- switch (data->reg_num) {
- case PHY_CTRL:
- if (mii_reg & MII_CR_POWER_DOWN)
- break;
- if (mii_reg & MII_CR_AUTO_NEG_EN) {
- hw->autoneg = 1;
- hw->autoneg_advertised = 0x2F;
- } else {
- if (mii_reg & 0x40)
- spddplx = SPEED_1000;
- else if (mii_reg & 0x2000)
- spddplx = SPEED_100;
- else
- spddplx = SPEED_10;
- spddplx += (mii_reg & 0x100)
- ? DUPLEX_FULL :
- DUPLEX_HALF;
- retval = e1000_set_spd_dplx(adapter,
- spddplx);
- if (retval)
- return retval;
- }
- if (netif_running(adapter->netdev))
- e1000_reinit_locked(adapter);
- else
- e1000_reset(adapter);
- break;
- case M88E1000_PHY_SPEC_CTRL:
- case M88E1000_EXT_PHY_SPEC_CTRL:
- if (e1000_phy_reset(hw))
- return -EIO;
- break;
- }
- } else {
- switch (data->reg_num) {
- case PHY_CTRL:
- if (mii_reg & MII_CR_POWER_DOWN)
- break;
- if (netif_running(adapter->netdev))
- e1000_reinit_locked(adapter);
- else
- e1000_reset(adapter);
- break;
- }
- }
- break;
- default:
- return -EOPNOTSUPP;
- }
- return E1000_SUCCESS;
-}
-
-void e1000_pci_set_mwi(struct e1000_hw *hw)
-{
- struct e1000_adapter *adapter = hw->back;
- int ret_val = pci_set_mwi(adapter->pdev);
-
- if (ret_val)
- DPRINTK(PROBE, ERR, "Error in setting MWI\n");
-}
-
-void e1000_pci_clear_mwi(struct e1000_hw *hw)
-{
- struct e1000_adapter *adapter = hw->back;
-
- pci_clear_mwi(adapter->pdev);
-}
-
-int e1000_pcix_get_mmrbc(struct e1000_hw *hw)
-{
- struct e1000_adapter *adapter = hw->back;
- return pcix_get_mmrbc(adapter->pdev);
-}
-
-void e1000_pcix_set_mmrbc(struct e1000_hw *hw, int mmrbc)
-{
- struct e1000_adapter *adapter = hw->back;
- pcix_set_mmrbc(adapter->pdev, mmrbc);
-}
-
-s32 e1000_read_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value)
-{
- struct e1000_adapter *adapter = hw->back;
- u16 cap_offset;
-
- cap_offset = pci_find_capability(adapter->pdev, PCI_CAP_ID_EXP);
- if (!cap_offset)
- return -E1000_ERR_CONFIG;
-
- pci_read_config_word(adapter->pdev, cap_offset + reg, value);
-
- return E1000_SUCCESS;
-}
-
-void e1000_io_write(struct e1000_hw *hw, unsigned long port, u32 value)
-{
- outl(value, port);
-}
-
-static void e1000_vlan_rx_register(struct net_device *netdev,
- struct vlan_group *grp)
-{
- struct e1000_adapter *adapter = netdev_priv(netdev);
- struct e1000_hw *hw = &adapter->hw;
- u32 ctrl, rctl;
-
- if (!test_bit(__E1000_DOWN, &adapter->flags))
- e1000_irq_disable(adapter);
- adapter->vlgrp = grp;
-
- if (grp) {
- /* enable VLAN tag insert/strip */
- ctrl = er32(CTRL);
- ctrl |= E1000_CTRL_VME;
- ew32(CTRL, ctrl);
-
- if (adapter->hw.mac_type != e1000_ich8lan) {
- /* enable VLAN receive filtering */
- rctl = er32(RCTL);
- rctl &= ~E1000_RCTL_CFIEN;
- ew32(RCTL, rctl);
- e1000_update_mng_vlan(adapter);
- }
- } else {
- /* disable VLAN tag insert/strip */
- ctrl = er32(CTRL);
- ctrl &= ~E1000_CTRL_VME;
- ew32(CTRL, ctrl);
-
- if (adapter->hw.mac_type != e1000_ich8lan) {
- if (adapter->mng_vlan_id !=
- (u16)E1000_MNG_VLAN_NONE) {
- e1000_vlan_rx_kill_vid(netdev,
- adapter->mng_vlan_id);
- adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
- }
- }
- }
-
- if (!test_bit(__E1000_DOWN, &adapter->flags))
- e1000_irq_enable(adapter);
-}
-
-static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid)
-{
- struct e1000_adapter *adapter = netdev_priv(netdev);
- struct e1000_hw *hw = &adapter->hw;
- u32 vfta, index;
-
- if ((hw->mng_cookie.status &
- E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) &&
- (vid == adapter->mng_vlan_id))
- return;
- /* add VID to filter table */
- index = (vid >> 5) & 0x7F;
- vfta = E1000_READ_REG_ARRAY(hw, VFTA, index);
- vfta |= (1 << (vid & 0x1F));
- e1000_write_vfta(hw, index, vfta);
-}
-
-static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
-{
- struct e1000_adapter *adapter = netdev_priv(netdev);
- struct e1000_hw *hw = &adapter->hw;
- u32 vfta, index;
-
- if (!test_bit(__E1000_DOWN, &adapter->flags))
- e1000_irq_disable(adapter);
- vlan_group_set_device(adapter->vlgrp, vid, NULL);
- if (!test_bit(__E1000_DOWN, &adapter->flags))
- e1000_irq_enable(adapter);
-
- if ((hw->mng_cookie.status &
- E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) &&
- (vid == adapter->mng_vlan_id)) {
- /* release control to f/w */
- e1000_release_hw_control(adapter);
- return;
- }
-
- /* remove VID from filter table */
- index = (vid >> 5) & 0x7F;
- vfta = E1000_READ_REG_ARRAY(hw, VFTA, index);
- vfta &= ~(1 << (vid & 0x1F));
- e1000_write_vfta(hw, index, vfta);
-}
-
-static void e1000_restore_vlan(struct e1000_adapter *adapter)
-{
- e1000_vlan_rx_register(adapter->netdev, adapter->vlgrp);
-
- if (adapter->vlgrp) {
- u16 vid;
- for (vid = 0; vid < VLAN_GROUP_ARRAY_LEN; vid++) {
- if (!vlan_group_get_device(adapter->vlgrp, vid))
- continue;
- e1000_vlan_rx_add_vid(adapter->netdev, vid);
- }
- }
-}
-
-int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx)
-{
- struct e1000_hw *hw = &adapter->hw;
-
- hw->autoneg = 0;
-
- /* Fiber NICs only allow 1000 gbps Full duplex */
- if ((hw->media_type == e1000_media_type_fiber) &&
- spddplx != (SPEED_1000 + DUPLEX_FULL)) {
- DPRINTK(PROBE, ERR, "Unsupported Speed/Duplex configuration\n");
- return -EINVAL;
- }
-
- switch (spddplx) {
- case SPEED_10 + DUPLEX_HALF:
- hw->forced_speed_duplex = e1000_10_half;
- break;
- case SPEED_10 + DUPLEX_FULL:
- hw->forced_speed_duplex = e1000_10_full;
- break;
- case SPEED_100 + DUPLEX_HALF:
- hw->forced_speed_duplex = e1000_100_half;
- break;
- case SPEED_100 + DUPLEX_FULL:
- hw->forced_speed_duplex = e1000_100_full;
- break;
- case SPEED_1000 + DUPLEX_FULL:
- hw->autoneg = 1;
- hw->autoneg_advertised = ADVERTISE_1000_FULL;
- break;
- case SPEED_1000 + DUPLEX_HALF: /* not supported */
- default:
- DPRINTK(PROBE, ERR, "Unsupported Speed/Duplex configuration\n");
- return -EINVAL;
- }
- return 0;
-}
-
-static int e1000_suspend(struct pci_dev *pdev, pm_message_t state)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct e1000_adapter *adapter = netdev_priv(netdev);
- struct e1000_hw *hw = &adapter->hw;
- u32 ctrl, ctrl_ext, rctl, status;
- u32 wufc = adapter->wol;
-#ifdef CONFIG_PM
- int retval = 0;
-#endif
-
- netif_device_detach(netdev);
-
- if (netif_running(netdev)) {
- WARN_ON(test_bit(__E1000_RESETTING, &adapter->flags));
- e1000_down(adapter);
- }
-
-#ifdef CONFIG_PM
- retval = pci_save_state(pdev);
- if (retval)
- return retval;
-#endif
-
- status = er32(STATUS);
- if (status & E1000_STATUS_LU)
- wufc &= ~E1000_WUFC_LNKC;
-
- if (wufc) {
- e1000_setup_rctl(adapter);
- e1000_set_rx_mode(netdev);
-
- /* turn on all-multi mode if wake on multicast is enabled */
- if (wufc & E1000_WUFC_MC) {
- rctl = er32(RCTL);
- rctl |= E1000_RCTL_MPE;
- ew32(RCTL, rctl);
- }
-
- if (hw->mac_type >= e1000_82540) {
- ctrl = er32(CTRL);
- /* advertise wake from D3Cold */
- #define E1000_CTRL_ADVD3WUC 0x00100000
- /* phy power management enable */
- #define E1000_CTRL_EN_PHY_PWR_MGMT 0x00200000
- ctrl |= E1000_CTRL_ADVD3WUC |
- E1000_CTRL_EN_PHY_PWR_MGMT;
- ew32(CTRL, ctrl);
- }
-
- if (hw->media_type == e1000_media_type_fiber ||
- hw->media_type == e1000_media_type_internal_serdes) {
- /* keep the laser running in D3 */
- ctrl_ext = er32(CTRL_EXT);
- ctrl_ext |= E1000_CTRL_EXT_SDP7_DATA;
- ew32(CTRL_EXT, ctrl_ext);
- }
-
- /* Allow time for pending master requests to run */
- e1000_disable_pciex_master(hw);
-
- ew32(WUC, E1000_WUC_PME_EN);
- ew32(WUFC, wufc);
- pci_enable_wake(pdev, PCI_D3hot, 1);
- pci_enable_wake(pdev, PCI_D3cold, 1);
- } else {
- ew32(WUC, 0);
- ew32(WUFC, 0);
- pci_enable_wake(pdev, PCI_D3hot, 0);
- pci_enable_wake(pdev, PCI_D3cold, 0);
- }
-
- e1000_release_manageability(adapter);
-
- /* make sure adapter isn't asleep if manageability is enabled */
- if (adapter->en_mng_pt) {
- pci_enable_wake(pdev, PCI_D3hot, 1);
- pci_enable_wake(pdev, PCI_D3cold, 1);
- }
-
- if (hw->phy_type == e1000_phy_igp_3)
- e1000_phy_powerdown_workaround(hw);
-
- if (netif_running(netdev))
- e1000_free_irq(adapter);
-
- /* Release control of h/w to f/w. If f/w is AMT enabled, this
- * would have already happened in close and is redundant. */
- e1000_release_hw_control(adapter);
-
- pci_disable_device(pdev);
-
- pci_set_power_state(pdev, pci_choose_state(pdev, state));
-
- return 0;
-}
-
-#ifdef CONFIG_PM
-static int e1000_resume(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct e1000_adapter *adapter = netdev_priv(netdev);
- struct e1000_hw *hw = &adapter->hw;
- u32 err;
-
- pci_set_power_state(pdev, PCI_D0);
- pci_restore_state(pdev);
-
- if (adapter->need_ioport)
- err = pci_enable_device(pdev);
- else
- err = pci_enable_device_mem(pdev);
- if (err) {
- printk(KERN_ERR "e1000: Cannot enable PCI device from suspend\n");
- return err;
- }
- pci_set_master(pdev);
-
- pci_enable_wake(pdev, PCI_D3hot, 0);
- pci_enable_wake(pdev, PCI_D3cold, 0);
-
- if (netif_running(netdev)) {
- err = e1000_request_irq(adapter);
- if (err)
- return err;
- }
-
- e1000_power_up_phy(adapter);
- e1000_reset(adapter);
- ew32(WUS, ~0);
-
- e1000_init_manageability(adapter);
-
- if (netif_running(netdev))
- e1000_up(adapter);
-
- netif_device_attach(netdev);
-
- /* If the controller is 82573 and f/w is AMT, do not set
- * DRV_LOAD until the interface is up. For all other cases,
- * let the f/w know that the h/w is now under the control
- * of the driver. */
- if (hw->mac_type != e1000_82573 ||
- !e1000_check_mng_mode(hw))
- e1000_get_hw_control(adapter);
-
- return 0;
-}
-#endif
-
-static void e1000_shutdown(struct pci_dev *pdev)
-{
- e1000_suspend(pdev, PMSG_SUSPEND);
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-/*
- * Polling 'interrupt' - used by things like netconsole to send skbs
- * without having to re-enable interrupts. It's not called while
- * the interrupt routine is executing.
- */
-static void e1000_netpoll(struct net_device *netdev)
-{
- struct e1000_adapter *adapter = netdev_priv(netdev);
-
- disable_irq(adapter->pdev->irq);
- e1000_intr(adapter->pdev->irq, netdev);
- enable_irq(adapter->pdev->irq);
-}
-#endif
-
-/**
- * e1000_io_error_detected - called when PCI error is detected
- * @pdev: Pointer to PCI device
- * @state: The current pci conneection state
- *
- * This function is called after a PCI bus error affecting
- * this device has been detected.
- */
-static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev,
- pci_channel_state_t state)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct e1000_adapter *adapter = netdev_priv(netdev);
-
- netif_device_detach(netdev);
-
- if (netif_running(netdev))
- e1000_down(adapter);
- pci_disable_device(pdev);
-
- /* Request a slot slot reset. */
- return PCI_ERS_RESULT_NEED_RESET;
-}
-
-/**
- * e1000_io_slot_reset - called after the pci bus has been reset.
- * @pdev: Pointer to PCI device
- *
- * Restart the card from scratch, as if from a cold-boot. Implementation
- * resembles the first-half of the e1000_resume routine.
- */
-static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct e1000_adapter *adapter = netdev_priv(netdev);
- struct e1000_hw *hw = &adapter->hw;
- int err;
-
- if (adapter->need_ioport)
- err = pci_enable_device(pdev);
- else
- err = pci_enable_device_mem(pdev);
- if (err) {
- printk(KERN_ERR "e1000: Cannot re-enable PCI device after reset.\n");
- return PCI_ERS_RESULT_DISCONNECT;
- }
- pci_set_master(pdev);
-
- pci_enable_wake(pdev, PCI_D3hot, 0);
- pci_enable_wake(pdev, PCI_D3cold, 0);
-
- e1000_reset(adapter);
- ew32(WUS, ~0);
-
- return PCI_ERS_RESULT_RECOVERED;
-}
-
-/**
- * e1000_io_resume - called when traffic can start flowing again.
- * @pdev: Pointer to PCI device
- *
- * This callback is called when the error recovery driver tells us that
- * its OK to resume normal operation. Implementation resembles the
- * second-half of the e1000_resume routine.
- */
-static void e1000_io_resume(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct e1000_adapter *adapter = netdev_priv(netdev);
- struct e1000_hw *hw = &adapter->hw;
-
- e1000_init_manageability(adapter);
-
- if (netif_running(netdev)) {
- if (e1000_up(adapter)) {
- printk("e1000: can't bring device back up after reset\n");
- return;
- }
- }
-
- netif_device_attach(netdev);
-
- /* If the controller is 82573 and f/w is AMT, do not set
- * DRV_LOAD until the interface is up. For all other cases,
- * let the f/w know that the h/w is now under the control
- * of the driver. */
- if (hw->mac_type != e1000_82573 ||
- !e1000_check_mng_mode(hw))
- e1000_get_hw_control(adapter);
-
-}
-
-/* e1000_main.c */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/devices/e1000/e1000_main-2.6.29-orig.c Tue Jan 10 11:58:09 2012 +0100
@@ -0,0 +1,4849 @@
+/*******************************************************************************
+
+ Intel PRO/1000 Linux driver
+ Copyright(c) 1999 - 2006 Intel Corporation.
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms and conditions of the GNU General Public License,
+ version 2, as published by the Free Software Foundation.
+
+ This program is distributed in the hope it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along with
+ this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+ 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
+
+*******************************************************************************/
+
+#include "e1000.h"
+#include <net/ip6_checksum.h>
+
+char e1000_driver_name[] = "e1000";
+static char e1000_driver_string[] = "Intel(R) PRO/1000 Network Driver";
+#define DRV_VERSION "7.3.21-k3-NAPI"
+const char e1000_driver_version[] = DRV_VERSION;
+static const char e1000_copyright[] = "Copyright (c) 1999-2006 Intel Corporation.";
+
+/* e1000_pci_tbl - PCI Device ID Table
+ *
+ * Last entry must be all 0s
+ *
+ * Macro expands to...
+ * {PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)}
+ */
+static struct pci_device_id e1000_pci_tbl[] = {
+ INTEL_E1000_ETHERNET_DEVICE(0x1000),
+ INTEL_E1000_ETHERNET_DEVICE(0x1001),
+ INTEL_E1000_ETHERNET_DEVICE(0x1004),
+ INTEL_E1000_ETHERNET_DEVICE(0x1008),
+ INTEL_E1000_ETHERNET_DEVICE(0x1009),
+ INTEL_E1000_ETHERNET_DEVICE(0x100C),
+ INTEL_E1000_ETHERNET_DEVICE(0x100D),
+ INTEL_E1000_ETHERNET_DEVICE(0x100E),
+ INTEL_E1000_ETHERNET_DEVICE(0x100F),
+ INTEL_E1000_ETHERNET_DEVICE(0x1010),
+ INTEL_E1000_ETHERNET_DEVICE(0x1011),
+ INTEL_E1000_ETHERNET_DEVICE(0x1012),
+ INTEL_E1000_ETHERNET_DEVICE(0x1013),
+ INTEL_E1000_ETHERNET_DEVICE(0x1014),
+ INTEL_E1000_ETHERNET_DEVICE(0x1015),
+ INTEL_E1000_ETHERNET_DEVICE(0x1016),
+ INTEL_E1000_ETHERNET_DEVICE(0x1017),
+ INTEL_E1000_ETHERNET_DEVICE(0x1018),
+ INTEL_E1000_ETHERNET_DEVICE(0x1019),
+ INTEL_E1000_ETHERNET_DEVICE(0x101A),
+ INTEL_E1000_ETHERNET_DEVICE(0x101D),
+ INTEL_E1000_ETHERNET_DEVICE(0x101E),
+ INTEL_E1000_ETHERNET_DEVICE(0x1026),
+ INTEL_E1000_ETHERNET_DEVICE(0x1027),
+ INTEL_E1000_ETHERNET_DEVICE(0x1028),
+ INTEL_E1000_ETHERNET_DEVICE(0x1075),
+ INTEL_E1000_ETHERNET_DEVICE(0x1076),
+ INTEL_E1000_ETHERNET_DEVICE(0x1077),
+ INTEL_E1000_ETHERNET_DEVICE(0x1078),
+ INTEL_E1000_ETHERNET_DEVICE(0x1079),
+ INTEL_E1000_ETHERNET_DEVICE(0x107A),
+ INTEL_E1000_ETHERNET_DEVICE(0x107B),
+ INTEL_E1000_ETHERNET_DEVICE(0x107C),
+ INTEL_E1000_ETHERNET_DEVICE(0x108A),
+ INTEL_E1000_ETHERNET_DEVICE(0x1099),
+ INTEL_E1000_ETHERNET_DEVICE(0x10B5),
+ /* required last entry */
+ {0,}
+};
+
+MODULE_DEVICE_TABLE(pci, e1000_pci_tbl);
+
+int e1000_up(struct e1000_adapter *adapter);
+void e1000_down(struct e1000_adapter *adapter);
+void e1000_reinit_locked(struct e1000_adapter *adapter);
+void e1000_reset(struct e1000_adapter *adapter);
+int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx);
+int e1000_setup_all_tx_resources(struct e1000_adapter *adapter);
+int e1000_setup_all_rx_resources(struct e1000_adapter *adapter);
+void e1000_free_all_tx_resources(struct e1000_adapter *adapter);
+void e1000_free_all_rx_resources(struct e1000_adapter *adapter);
+static int e1000_setup_tx_resources(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *txdr);
+static int e1000_setup_rx_resources(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rxdr);
+static void e1000_free_tx_resources(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *tx_ring);
+static void e1000_free_rx_resources(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring);
+void e1000_update_stats(struct e1000_adapter *adapter);
+
+static int e1000_init_module(void);
+static void e1000_exit_module(void);
+static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
+static void __devexit e1000_remove(struct pci_dev *pdev);
+static int e1000_alloc_queues(struct e1000_adapter *adapter);
+static int e1000_sw_init(struct e1000_adapter *adapter);
+static int e1000_open(struct net_device *netdev);
+static int e1000_close(struct net_device *netdev);
+static void e1000_configure_tx(struct e1000_adapter *adapter);
+static void e1000_configure_rx(struct e1000_adapter *adapter);
+static void e1000_setup_rctl(struct e1000_adapter *adapter);
+static void e1000_clean_all_tx_rings(struct e1000_adapter *adapter);
+static void e1000_clean_all_rx_rings(struct e1000_adapter *adapter);
+static void e1000_clean_tx_ring(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *tx_ring);
+static void e1000_clean_rx_ring(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring);
+static void e1000_set_rx_mode(struct net_device *netdev);
+static void e1000_update_phy_info(unsigned long data);
+static void e1000_watchdog(unsigned long data);
+static void e1000_82547_tx_fifo_stall(unsigned long data);
+static int e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev);
+static struct net_device_stats * e1000_get_stats(struct net_device *netdev);
+static int e1000_change_mtu(struct net_device *netdev, int new_mtu);
+static int e1000_set_mac(struct net_device *netdev, void *p);
+static irqreturn_t e1000_intr(int irq, void *data);
+static irqreturn_t e1000_intr_msi(int irq, void *data);
+static bool e1000_clean_tx_irq(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *tx_ring);
+static int e1000_clean(struct napi_struct *napi, int budget);
+static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring,
+ int *work_done, int work_to_do);
+static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring,
+ int cleaned_count);
+static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd);
+static int e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr,
+ int cmd);
+static void e1000_enter_82542_rst(struct e1000_adapter *adapter);
+static void e1000_leave_82542_rst(struct e1000_adapter *adapter);
+static void e1000_tx_timeout(struct net_device *dev);
+static void e1000_reset_task(struct work_struct *work);
+static void e1000_smartspeed(struct e1000_adapter *adapter);
+static int e1000_82547_fifo_workaround(struct e1000_adapter *adapter,
+ struct sk_buff *skb);
+
+static void e1000_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp);
+static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid);
+static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid);
+static void e1000_restore_vlan(struct e1000_adapter *adapter);
+
+static int e1000_suspend(struct pci_dev *pdev, pm_message_t state);
+#ifdef CONFIG_PM
+static int e1000_resume(struct pci_dev *pdev);
+#endif
+static void e1000_shutdown(struct pci_dev *pdev);
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/* for netdump / net console */
+static void e1000_netpoll (struct net_device *netdev);
+#endif
+
+#define COPYBREAK_DEFAULT 256
+static unsigned int copybreak __read_mostly = COPYBREAK_DEFAULT;
+module_param(copybreak, uint, 0644);
+MODULE_PARM_DESC(copybreak,
+ "Maximum size of packet that is copied to a new buffer on receive");
+
+static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev,
+ pci_channel_state_t state);
+static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev);
+static void e1000_io_resume(struct pci_dev *pdev);
+
+static struct pci_error_handlers e1000_err_handler = {
+ .error_detected = e1000_io_error_detected,
+ .slot_reset = e1000_io_slot_reset,
+ .resume = e1000_io_resume,
+};
+
+static struct pci_driver e1000_driver = {
+ .name = e1000_driver_name,
+ .id_table = e1000_pci_tbl,
+ .probe = e1000_probe,
+ .remove = __devexit_p(e1000_remove),
+#ifdef CONFIG_PM
+ /* Power Managment Hooks */
+ .suspend = e1000_suspend,
+ .resume = e1000_resume,
+#endif
+ .shutdown = e1000_shutdown,
+ .err_handler = &e1000_err_handler
+};
+
+MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>");
+MODULE_DESCRIPTION("Intel(R) PRO/1000 Network Driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+static int debug = NETIF_MSG_DRV | NETIF_MSG_PROBE;
+module_param(debug, int, 0);
+MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
+
+/**
+ * e1000_init_module - Driver Registration Routine
+ *
+ * e1000_init_module is the first routine called when the driver is
+ * loaded. All it does is register with the PCI subsystem.
+ **/
+
+static int __init e1000_init_module(void)
+{
+ int ret;
+ printk(KERN_INFO "%s - version %s\n",
+ e1000_driver_string, e1000_driver_version);
+
+ printk(KERN_INFO "%s\n", e1000_copyright);
+
+ ret = pci_register_driver(&e1000_driver);
+ if (copybreak != COPYBREAK_DEFAULT) {
+ if (copybreak == 0)
+ printk(KERN_INFO "e1000: copybreak disabled\n");
+ else
+ printk(KERN_INFO "e1000: copybreak enabled for "
+ "packets <= %u bytes\n", copybreak);
+ }
+ return ret;
+}
+
+module_init(e1000_init_module);
+
+/**
+ * e1000_exit_module - Driver Exit Cleanup Routine
+ *
+ * e1000_exit_module is called just before the driver is removed
+ * from memory.
+ **/
+
+static void __exit e1000_exit_module(void)
+{
+ pci_unregister_driver(&e1000_driver);
+}
+
+module_exit(e1000_exit_module);
+
+static int e1000_request_irq(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct net_device *netdev = adapter->netdev;
+ irq_handler_t handler = e1000_intr;
+ int irq_flags = IRQF_SHARED;
+ int err;
+
+ if (hw->mac_type >= e1000_82571) {
+ adapter->have_msi = !pci_enable_msi(adapter->pdev);
+ if (adapter->have_msi) {
+ handler = e1000_intr_msi;
+ irq_flags = 0;
+ }
+ }
+
+ err = request_irq(adapter->pdev->irq, handler, irq_flags, netdev->name,
+ netdev);
+ if (err) {
+ if (adapter->have_msi)
+ pci_disable_msi(adapter->pdev);
+ DPRINTK(PROBE, ERR,
+ "Unable to allocate interrupt Error: %d\n", err);
+ }
+
+ return err;
+}
+
+static void e1000_free_irq(struct e1000_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+
+ free_irq(adapter->pdev->irq, netdev);
+
+ if (adapter->have_msi)
+ pci_disable_msi(adapter->pdev);
+}
+
+/**
+ * e1000_irq_disable - Mask off interrupt generation on the NIC
+ * @adapter: board private structure
+ **/
+
+static void e1000_irq_disable(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+
+ ew32(IMC, ~0);
+ E1000_WRITE_FLUSH();
+ synchronize_irq(adapter->pdev->irq);
+}
+
+/**
+ * e1000_irq_enable - Enable default interrupt generation settings
+ * @adapter: board private structure
+ **/
+
+static void e1000_irq_enable(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+
+ ew32(IMS, IMS_ENABLE_MASK);
+ E1000_WRITE_FLUSH();
+}
+
+static void e1000_update_mng_vlan(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct net_device *netdev = adapter->netdev;
+ u16 vid = hw->mng_cookie.vlan_id;
+ u16 old_vid = adapter->mng_vlan_id;
+ if (adapter->vlgrp) {
+ if (!vlan_group_get_device(adapter->vlgrp, vid)) {
+ if (hw->mng_cookie.status &
+ E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) {
+ e1000_vlan_rx_add_vid(netdev, vid);
+ adapter->mng_vlan_id = vid;
+ } else
+ adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
+
+ if ((old_vid != (u16)E1000_MNG_VLAN_NONE) &&
+ (vid != old_vid) &&
+ !vlan_group_get_device(adapter->vlgrp, old_vid))
+ e1000_vlan_rx_kill_vid(netdev, old_vid);
+ } else
+ adapter->mng_vlan_id = vid;
+ }
+}
+
+/**
+ * e1000_release_hw_control - release control of the h/w to f/w
+ * @adapter: address of board private structure
+ *
+ * e1000_release_hw_control resets {CTRL_EXT|FWSM}:DRV_LOAD bit.
+ * For ASF and Pass Through versions of f/w this means that the
+ * driver is no longer loaded. For AMT version (only with 82573) i
+ * of the f/w this means that the network i/f is closed.
+ *
+ **/
+
+static void e1000_release_hw_control(struct e1000_adapter *adapter)
+{
+ u32 ctrl_ext;
+ u32 swsm;
+ struct e1000_hw *hw = &adapter->hw;
+
+ /* Let firmware taken over control of h/w */
+ switch (hw->mac_type) {
+ case e1000_82573:
+ swsm = er32(SWSM);
+ ew32(SWSM, swsm & ~E1000_SWSM_DRV_LOAD);
+ break;
+ case e1000_82571:
+ case e1000_82572:
+ case e1000_80003es2lan:
+ case e1000_ich8lan:
+ ctrl_ext = er32(CTRL_EXT);
+ ew32(CTRL_EXT, ctrl_ext & ~E1000_CTRL_EXT_DRV_LOAD);
+ break;
+ default:
+ break;
+ }
+}
+
+/**
+ * e1000_get_hw_control - get control of the h/w from f/w
+ * @adapter: address of board private structure
+ *
+ * e1000_get_hw_control sets {CTRL_EXT|FWSM}:DRV_LOAD bit.
+ * For ASF and Pass Through versions of f/w this means that
+ * the driver is loaded. For AMT version (only with 82573)
+ * of the f/w this means that the network i/f is open.
+ *
+ **/
+
+static void e1000_get_hw_control(struct e1000_adapter *adapter)
+{
+ u32 ctrl_ext;
+ u32 swsm;
+ struct e1000_hw *hw = &adapter->hw;
+
+ /* Let firmware know the driver has taken over */
+ switch (hw->mac_type) {
+ case e1000_82573:
+ swsm = er32(SWSM);
+ ew32(SWSM, swsm | E1000_SWSM_DRV_LOAD);
+ break;
+ case e1000_82571:
+ case e1000_82572:
+ case e1000_80003es2lan:
+ case e1000_ich8lan:
+ ctrl_ext = er32(CTRL_EXT);
+ ew32(CTRL_EXT, ctrl_ext | E1000_CTRL_EXT_DRV_LOAD);
+ break;
+ default:
+ break;
+ }
+}
+
+static void e1000_init_manageability(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+
+ if (adapter->en_mng_pt) {
+ u32 manc = er32(MANC);
+
+ /* disable hardware interception of ARP */
+ manc &= ~(E1000_MANC_ARP_EN);
+
+ /* enable receiving management packets to the host */
+ /* this will probably generate destination unreachable messages
+ * from the host OS, but the packets will be handled on SMBUS */
+ if (hw->has_manc2h) {
+ u32 manc2h = er32(MANC2H);
+
+ manc |= E1000_MANC_EN_MNG2HOST;
+#define E1000_MNG2HOST_PORT_623 (1 << 5)
+#define E1000_MNG2HOST_PORT_664 (1 << 6)
+ manc2h |= E1000_MNG2HOST_PORT_623;
+ manc2h |= E1000_MNG2HOST_PORT_664;
+ ew32(MANC2H, manc2h);
+ }
+
+ ew32(MANC, manc);
+ }
+}
+
+static void e1000_release_manageability(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+
+ if (adapter->en_mng_pt) {
+ u32 manc = er32(MANC);
+
+ /* re-enable hardware interception of ARP */
+ manc |= E1000_MANC_ARP_EN;
+
+ if (hw->has_manc2h)
+ manc &= ~E1000_MANC_EN_MNG2HOST;
+
+ /* don't explicitly have to mess with MANC2H since
+ * MANC has an enable disable that gates MANC2H */
+
+ ew32(MANC, manc);
+ }
+}
+
+/**
+ * e1000_configure - configure the hardware for RX and TX
+ * @adapter = private board structure
+ **/
+static void e1000_configure(struct e1000_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ int i;
+
+ e1000_set_rx_mode(netdev);
+
+ e1000_restore_vlan(adapter);
+ e1000_init_manageability(adapter);
+
+ e1000_configure_tx(adapter);
+ e1000_setup_rctl(adapter);
+ e1000_configure_rx(adapter);
+ /* call E1000_DESC_UNUSED which always leaves
+ * at least 1 descriptor unused to make sure
+ * next_to_use != next_to_clean */
+ for (i = 0; i < adapter->num_rx_queues; i++) {
+ struct e1000_rx_ring *ring = &adapter->rx_ring[i];
+ adapter->alloc_rx_buf(adapter, ring,
+ E1000_DESC_UNUSED(ring));
+ }
+
+ adapter->tx_queue_len = netdev->tx_queue_len;
+}
+
+int e1000_up(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+
+ /* hardware has been reset, we need to reload some things */
+ e1000_configure(adapter);
+
+ clear_bit(__E1000_DOWN, &adapter->flags);
+
+ napi_enable(&adapter->napi);
+
+ e1000_irq_enable(adapter);
+
+ /* fire a link change interrupt to start the watchdog */
+ ew32(ICS, E1000_ICS_LSC);
+ return 0;
+}
+
+/**
+ * e1000_power_up_phy - restore link in case the phy was powered down
+ * @adapter: address of board private structure
+ *
+ * The phy may be powered down to save power and turn off link when the
+ * driver is unloaded and wake on lan is not enabled (among others)
+ * *** this routine MUST be followed by a call to e1000_reset ***
+ *
+ **/
+
+void e1000_power_up_phy(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u16 mii_reg = 0;
+
+ /* Just clear the power down bit to wake the phy back up */
+ if (hw->media_type == e1000_media_type_copper) {
+ /* according to the manual, the phy will retain its
+ * settings across a power-down/up cycle */
+ e1000_read_phy_reg(hw, PHY_CTRL, &mii_reg);
+ mii_reg &= ~MII_CR_POWER_DOWN;
+ e1000_write_phy_reg(hw, PHY_CTRL, mii_reg);
+ }
+}
+
+static void e1000_power_down_phy(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+
+ /* Power down the PHY so no link is implied when interface is down *
+ * The PHY cannot be powered down if any of the following is true *
+ * (a) WoL is enabled
+ * (b) AMT is active
+ * (c) SoL/IDER session is active */
+ if (!adapter->wol && hw->mac_type >= e1000_82540 &&
+ hw->media_type == e1000_media_type_copper) {
+ u16 mii_reg = 0;
+
+ switch (hw->mac_type) {
+ case e1000_82540:
+ case e1000_82545:
+ case e1000_82545_rev_3:
+ case e1000_82546:
+ case e1000_82546_rev_3:
+ case e1000_82541:
+ case e1000_82541_rev_2:
+ case e1000_82547:
+ case e1000_82547_rev_2:
+ if (er32(MANC) & E1000_MANC_SMBUS_EN)
+ goto out;
+ break;
+ case e1000_82571:
+ case e1000_82572:
+ case e1000_82573:
+ case e1000_80003es2lan:
+ case e1000_ich8lan:
+ if (e1000_check_mng_mode(hw) ||
+ e1000_check_phy_reset_block(hw))
+ goto out;
+ break;
+ default:
+ goto out;
+ }
+ e1000_read_phy_reg(hw, PHY_CTRL, &mii_reg);
+ mii_reg |= MII_CR_POWER_DOWN;
+ e1000_write_phy_reg(hw, PHY_CTRL, mii_reg);
+ mdelay(1);
+ }
+out:
+ return;
+}
+
+void e1000_down(struct e1000_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+
+ /* signal that we're down so the interrupt handler does not
+ * reschedule our watchdog timer */
+ set_bit(__E1000_DOWN, &adapter->flags);
+
+ napi_disable(&adapter->napi);
+
+ e1000_irq_disable(adapter);
+
+ del_timer_sync(&adapter->tx_fifo_stall_timer);
+ del_timer_sync(&adapter->watchdog_timer);
+ del_timer_sync(&adapter->phy_info_timer);
+
+ netdev->tx_queue_len = adapter->tx_queue_len;
+ adapter->link_speed = 0;
+ adapter->link_duplex = 0;
+ netif_carrier_off(netdev);
+ netif_stop_queue(netdev);
+
+ e1000_reset(adapter);
+ e1000_clean_all_tx_rings(adapter);
+ e1000_clean_all_rx_rings(adapter);
+}
+
+void e1000_reinit_locked(struct e1000_adapter *adapter)
+{
+ WARN_ON(in_interrupt());
+ while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
+ msleep(1);
+ e1000_down(adapter);
+ e1000_up(adapter);
+ clear_bit(__E1000_RESETTING, &adapter->flags);
+}
+
+void e1000_reset(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 pba = 0, tx_space, min_tx_space, min_rx_space;
+ u16 fc_high_water_mark = E1000_FC_HIGH_DIFF;
+ bool legacy_pba_adjust = false;
+
+ /* Repartition Pba for greater than 9k mtu
+ * To take effect CTRL.RST is required.
+ */
+
+ switch (hw->mac_type) {
+ case e1000_82542_rev2_0:
+ case e1000_82542_rev2_1:
+ case e1000_82543:
+ case e1000_82544:
+ case e1000_82540:
+ case e1000_82541:
+ case e1000_82541_rev_2:
+ legacy_pba_adjust = true;
+ pba = E1000_PBA_48K;
+ break;
+ case e1000_82545:
+ case e1000_82545_rev_3:
+ case e1000_82546:
+ case e1000_82546_rev_3:
+ pba = E1000_PBA_48K;
+ break;
+ case e1000_82547:
+ case e1000_82547_rev_2:
+ legacy_pba_adjust = true;
+ pba = E1000_PBA_30K;
+ break;
+ case e1000_82571:
+ case e1000_82572:
+ case e1000_80003es2lan:
+ pba = E1000_PBA_38K;
+ break;
+ case e1000_82573:
+ pba = E1000_PBA_20K;
+ break;
+ case e1000_ich8lan:
+ pba = E1000_PBA_8K;
+ case e1000_undefined:
+ case e1000_num_macs:
+ break;
+ }
+
+ if (legacy_pba_adjust) {
+ if (adapter->netdev->mtu > E1000_RXBUFFER_8192)
+ pba -= 8; /* allocate more FIFO for Tx */
+
+ if (hw->mac_type == e1000_82547) {
+ adapter->tx_fifo_head = 0;
+ adapter->tx_head_addr = pba << E1000_TX_HEAD_ADDR_SHIFT;
+ adapter->tx_fifo_size =
+ (E1000_PBA_40K - pba) << E1000_PBA_BYTES_SHIFT;
+ atomic_set(&adapter->tx_fifo_stall, 0);
+ }
+ } else if (hw->max_frame_size > MAXIMUM_ETHERNET_FRAME_SIZE) {
+ /* adjust PBA for jumbo frames */
+ ew32(PBA, pba);
+
+ /* To maintain wire speed transmits, the Tx FIFO should be
+ * large enough to accomodate two full transmit packets,
+ * rounded up to the next 1KB and expressed in KB. Likewise,
+ * the Rx FIFO should be large enough to accomodate at least
+ * one full receive packet and is similarly rounded up and
+ * expressed in KB. */
+ pba = er32(PBA);
+ /* upper 16 bits has Tx packet buffer allocation size in KB */
+ tx_space = pba >> 16;
+ /* lower 16 bits has Rx packet buffer allocation size in KB */
+ pba &= 0xffff;
+ /* don't include ethernet FCS because hardware appends/strips */
+ min_rx_space = adapter->netdev->mtu + ENET_HEADER_SIZE +
+ VLAN_TAG_SIZE;
+ min_tx_space = min_rx_space;
+ min_tx_space *= 2;
+ min_tx_space = ALIGN(min_tx_space, 1024);
+ min_tx_space >>= 10;
+ min_rx_space = ALIGN(min_rx_space, 1024);
+ min_rx_space >>= 10;
+
+ /* If current Tx allocation is less than the min Tx FIFO size,
+ * and the min Tx FIFO size is less than the current Rx FIFO
+ * allocation, take space away from current Rx allocation */
+ if (tx_space < min_tx_space &&
+ ((min_tx_space - tx_space) < pba)) {
+ pba = pba - (min_tx_space - tx_space);
+
+ /* PCI/PCIx hardware has PBA alignment constraints */
+ switch (hw->mac_type) {
+ case e1000_82545 ... e1000_82546_rev_3:
+ pba &= ~(E1000_PBA_8K - 1);
+ break;
+ default:
+ break;
+ }
+
+ /* if short on rx space, rx wins and must trump tx
+ * adjustment or use Early Receive if available */
+ if (pba < min_rx_space) {
+ switch (hw->mac_type) {
+ case e1000_82573:
+ /* ERT enabled in e1000_configure_rx */
+ break;
+ default:
+ pba = min_rx_space;
+ break;
+ }
+ }
+ }
+ }
+
+ ew32(PBA, pba);
+
+ /* flow control settings */
+ /* Set the FC high water mark to 90% of the FIFO size.
+ * Required to clear last 3 LSB */
+ fc_high_water_mark = ((pba * 9216)/10) & 0xFFF8;
+ /* We can't use 90% on small FIFOs because the remainder
+ * would be less than 1 full frame. In this case, we size
+ * it to allow at least a full frame above the high water
+ * mark. */
+ if (pba < E1000_PBA_16K)
+ fc_high_water_mark = (pba * 1024) - 1600;
+
+ hw->fc_high_water = fc_high_water_mark;
+ hw->fc_low_water = fc_high_water_mark - 8;
+ if (hw->mac_type == e1000_80003es2lan)
+ hw->fc_pause_time = 0xFFFF;
+ else
+ hw->fc_pause_time = E1000_FC_PAUSE_TIME;
+ hw->fc_send_xon = 1;
+ hw->fc = hw->original_fc;
+
+ /* Allow time for pending master requests to run */
+ e1000_reset_hw(hw);
+ if (hw->mac_type >= e1000_82544)
+ ew32(WUC, 0);
+
+ if (e1000_init_hw(hw))
+ DPRINTK(PROBE, ERR, "Hardware Error\n");
+ e1000_update_mng_vlan(adapter);
+
+ /* if (adapter->hwflags & HWFLAGS_PHY_PWR_BIT) { */
+ if (hw->mac_type >= e1000_82544 &&
+ hw->mac_type <= e1000_82547_rev_2 &&
+ hw->autoneg == 1 &&
+ hw->autoneg_advertised == ADVERTISE_1000_FULL) {
+ u32 ctrl = er32(CTRL);
+ /* clear phy power management bit if we are in gig only mode,
+ * which if enabled will attempt negotiation to 100Mb, which
+ * can cause a loss of link at power off or driver unload */
+ ctrl &= ~E1000_CTRL_SWDPIN3;
+ ew32(CTRL, ctrl);
+ }
+
+ /* Enable h/w to recognize an 802.1Q VLAN Ethernet packet */
+ ew32(VET, ETHERNET_IEEE_VLAN_TYPE);
+
+ e1000_reset_adaptive(hw);
+ e1000_phy_get_info(hw, &adapter->phy_info);
+
+ if (!adapter->smart_power_down &&
+ (hw->mac_type == e1000_82571 ||
+ hw->mac_type == e1000_82572)) {
+ u16 phy_data = 0;
+ /* speed up time to link by disabling smart power down, ignore
+ * the return value of this function because there is nothing
+ * different we would do if it failed */
+ e1000_read_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT,
+ &phy_data);
+ phy_data &= ~IGP02E1000_PM_SPD;
+ e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT,
+ phy_data);
+ }
+
+ e1000_release_manageability(adapter);
+}
+
+/**
+ * Dump the eeprom for users having checksum issues
+ **/
+static void e1000_dump_eeprom(struct e1000_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct ethtool_eeprom eeprom;
+ const struct ethtool_ops *ops = netdev->ethtool_ops;
+ u8 *data;
+ int i;
+ u16 csum_old, csum_new = 0;
+
+ eeprom.len = ops->get_eeprom_len(netdev);
+ eeprom.offset = 0;
+
+ data = kmalloc(eeprom.len, GFP_KERNEL);
+ if (!data) {
+ printk(KERN_ERR "Unable to allocate memory to dump EEPROM"
+ " data\n");
+ return;
+ }
+
+ ops->get_eeprom(netdev, &eeprom, data);
+
+ csum_old = (data[EEPROM_CHECKSUM_REG * 2]) +
+ (data[EEPROM_CHECKSUM_REG * 2 + 1] << 8);
+ for (i = 0; i < EEPROM_CHECKSUM_REG * 2; i += 2)
+ csum_new += data[i] + (data[i + 1] << 8);
+ csum_new = EEPROM_SUM - csum_new;
+
+ printk(KERN_ERR "/*********************/\n");
+ printk(KERN_ERR "Current EEPROM Checksum : 0x%04x\n", csum_old);
+ printk(KERN_ERR "Calculated : 0x%04x\n", csum_new);
+
+ printk(KERN_ERR "Offset Values\n");
+ printk(KERN_ERR "======== ======\n");
+ print_hex_dump(KERN_ERR, "", DUMP_PREFIX_OFFSET, 16, 1, data, 128, 0);
+
+ printk(KERN_ERR "Include this output when contacting your support "
+ "provider.\n");
+ printk(KERN_ERR "This is not a software error! Something bad "
+ "happened to your hardware or\n");
+ printk(KERN_ERR "EEPROM image. Ignoring this "
+ "problem could result in further problems,\n");
+ printk(KERN_ERR "possibly loss of data, corruption or system hangs!\n");
+ printk(KERN_ERR "The MAC Address will be reset to 00:00:00:00:00:00, "
+ "which is invalid\n");
+ printk(KERN_ERR "and requires you to set the proper MAC "
+ "address manually before continuing\n");
+ printk(KERN_ERR "to enable this network device.\n");
+ printk(KERN_ERR "Please inspect the EEPROM dump and report the issue "
+ "to your hardware vendor\n");
+ printk(KERN_ERR "or Intel Customer Support.\n");
+ printk(KERN_ERR "/*********************/\n");
+
+ kfree(data);
+}
+
+/**
+ * e1000_is_need_ioport - determine if an adapter needs ioport resources or not
+ * @pdev: PCI device information struct
+ *
+ * Return true if an adapter needs ioport resources
+ **/
+static int e1000_is_need_ioport(struct pci_dev *pdev)
+{
+ switch (pdev->device) {
+ case E1000_DEV_ID_82540EM:
+ case E1000_DEV_ID_82540EM_LOM:
+ case E1000_DEV_ID_82540EP:
+ case E1000_DEV_ID_82540EP_LOM:
+ case E1000_DEV_ID_82540EP_LP:
+ case E1000_DEV_ID_82541EI:
+ case E1000_DEV_ID_82541EI_MOBILE:
+ case E1000_DEV_ID_82541ER:
+ case E1000_DEV_ID_82541ER_LOM:
+ case E1000_DEV_ID_82541GI:
+ case E1000_DEV_ID_82541GI_LF:
+ case E1000_DEV_ID_82541GI_MOBILE:
+ case E1000_DEV_ID_82544EI_COPPER:
+ case E1000_DEV_ID_82544EI_FIBER:
+ case E1000_DEV_ID_82544GC_COPPER:
+ case E1000_DEV_ID_82544GC_LOM:
+ case E1000_DEV_ID_82545EM_COPPER:
+ case E1000_DEV_ID_82545EM_FIBER:
+ case E1000_DEV_ID_82546EB_COPPER:
+ case E1000_DEV_ID_82546EB_FIBER:
+ case E1000_DEV_ID_82546EB_QUAD_COPPER:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const struct net_device_ops e1000_netdev_ops = {
+ .ndo_open = e1000_open,
+ .ndo_stop = e1000_close,
+ .ndo_start_xmit = e1000_xmit_frame,
+ .ndo_get_stats = e1000_get_stats,
+ .ndo_set_rx_mode = e1000_set_rx_mode,
+ .ndo_set_mac_address = e1000_set_mac,
+ .ndo_tx_timeout = e1000_tx_timeout,
+ .ndo_change_mtu = e1000_change_mtu,
+ .ndo_do_ioctl = e1000_ioctl,
+ .ndo_validate_addr = eth_validate_addr,
+
+ .ndo_vlan_rx_register = e1000_vlan_rx_register,
+ .ndo_vlan_rx_add_vid = e1000_vlan_rx_add_vid,
+ .ndo_vlan_rx_kill_vid = e1000_vlan_rx_kill_vid,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = e1000_netpoll,
+#endif
+};
+
+/**
+ * e1000_probe - Device Initialization Routine
+ * @pdev: PCI device information struct
+ * @ent: entry in e1000_pci_tbl
+ *
+ * Returns 0 on success, negative on failure
+ *
+ * e1000_probe initializes an adapter identified by a pci_dev structure.
+ * The OS initialization, configuring of the adapter private structure,
+ * and a hardware reset occur.
+ **/
+static int __devinit e1000_probe(struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+{
+ struct net_device *netdev;
+ struct e1000_adapter *adapter;
+ struct e1000_hw *hw;
+
+ static int cards_found = 0;
+ static int global_quad_port_a = 0; /* global ksp3 port a indication */
+ int i, err, pci_using_dac;
+ u16 eeprom_data = 0;
+ u16 eeprom_apme_mask = E1000_EEPROM_APME;
+ int bars, need_ioport;
+
+ /* do not allocate ioport bars when not needed */
+ need_ioport = e1000_is_need_ioport(pdev);
+ if (need_ioport) {
+ bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
+ err = pci_enable_device(pdev);
+ } else {
+ bars = pci_select_bars(pdev, IORESOURCE_MEM);
+ err = pci_enable_device_mem(pdev);
+ }
+ if (err)
+ return err;
+
+ if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK) &&
+ !pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK)) {
+ pci_using_dac = 1;
+ } else {
+ err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+ if (err) {
+ err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+ if (err) {
+ E1000_ERR("No usable DMA configuration, "
+ "aborting\n");
+ goto err_dma;
+ }
+ }
+ pci_using_dac = 0;
+ }
+
+ err = pci_request_selected_regions(pdev, bars, e1000_driver_name);
+ if (err)
+ goto err_pci_reg;
+
+ pci_set_master(pdev);
+
+ err = -ENOMEM;
+ netdev = alloc_etherdev(sizeof(struct e1000_adapter));
+ if (!netdev)
+ goto err_alloc_etherdev;
+
+ SET_NETDEV_DEV(netdev, &pdev->dev);
+
+ pci_set_drvdata(pdev, netdev);
+ adapter = netdev_priv(netdev);
+ adapter->netdev = netdev;
+ adapter->pdev = pdev;
+ adapter->msg_enable = (1 << debug) - 1;
+ adapter->bars = bars;
+ adapter->need_ioport = need_ioport;
+
+ hw = &adapter->hw;
+ hw->back = adapter;
+
+ err = -EIO;
+ hw->hw_addr = pci_ioremap_bar(pdev, BAR_0);
+ if (!hw->hw_addr)
+ goto err_ioremap;
+
+ if (adapter->need_ioport) {
+ for (i = BAR_1; i <= BAR_5; i++) {
+ if (pci_resource_len(pdev, i) == 0)
+ continue;
+ if (pci_resource_flags(pdev, i) & IORESOURCE_IO) {
+ hw->io_base = pci_resource_start(pdev, i);
+ break;
+ }
+ }
+ }
+
+ netdev->netdev_ops = &e1000_netdev_ops;
+ e1000_set_ethtool_ops(netdev);
+ netdev->watchdog_timeo = 5 * HZ;
+ netif_napi_add(netdev, &adapter->napi, e1000_clean, 64);
+
+ strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1);
+
+ adapter->bd_number = cards_found;
+
+ /* setup the private structure */
+
+ err = e1000_sw_init(adapter);
+ if (err)
+ goto err_sw_init;
+
+ err = -EIO;
+ /* Flash BAR mapping must happen after e1000_sw_init
+ * because it depends on mac_type */
+ if ((hw->mac_type == e1000_ich8lan) &&
+ (pci_resource_flags(pdev, 1) & IORESOURCE_MEM)) {
+ hw->flash_address = pci_ioremap_bar(pdev, 1);
+ if (!hw->flash_address)
+ goto err_flashmap;
+ }
+
+ if (e1000_check_phy_reset_block(hw))
+ DPRINTK(PROBE, INFO, "PHY reset is blocked due to SOL/IDER session.\n");
+
+ if (hw->mac_type >= e1000_82543) {
+ netdev->features = NETIF_F_SG |
+ NETIF_F_HW_CSUM |
+ NETIF_F_HW_VLAN_TX |
+ NETIF_F_HW_VLAN_RX |
+ NETIF_F_HW_VLAN_FILTER;
+ if (hw->mac_type == e1000_ich8lan)
+ netdev->features &= ~NETIF_F_HW_VLAN_FILTER;
+ }
+
+ if ((hw->mac_type >= e1000_82544) &&
+ (hw->mac_type != e1000_82547))
+ netdev->features |= NETIF_F_TSO;
+
+ if (hw->mac_type > e1000_82547_rev_2)
+ netdev->features |= NETIF_F_TSO6;
+ if (pci_using_dac)
+ netdev->features |= NETIF_F_HIGHDMA;
+
+ netdev->features |= NETIF_F_LLTX;
+
+ netdev->vlan_features |= NETIF_F_TSO;
+ netdev->vlan_features |= NETIF_F_TSO6;
+ netdev->vlan_features |= NETIF_F_HW_CSUM;
+ netdev->vlan_features |= NETIF_F_SG;
+
+ adapter->en_mng_pt = e1000_enable_mng_pass_thru(hw);
+
+ /* initialize eeprom parameters */
+ if (e1000_init_eeprom_params(hw)) {
+ E1000_ERR("EEPROM initialization failed\n");
+ goto err_eeprom;
+ }
+
+ /* before reading the EEPROM, reset the controller to
+ * put the device in a known good starting state */
+
+ e1000_reset_hw(hw);
+
+ /* make sure the EEPROM is good */
+ if (e1000_validate_eeprom_checksum(hw) < 0) {
+ DPRINTK(PROBE, ERR, "The EEPROM Checksum Is Not Valid\n");
+ e1000_dump_eeprom(adapter);
+ /*
+ * set MAC address to all zeroes to invalidate and temporary
+ * disable this device for the user. This blocks regular
+ * traffic while still permitting ethtool ioctls from reaching
+ * the hardware as well as allowing the user to run the
+ * interface after manually setting a hw addr using
+ * `ip set address`
+ */
+ memset(hw->mac_addr, 0, netdev->addr_len);
+ } else {
+ /* copy the MAC address out of the EEPROM */
+ if (e1000_read_mac_addr(hw))
+ DPRINTK(PROBE, ERR, "EEPROM Read Error\n");
+ }
+ /* don't block initalization here due to bad MAC address */
+ memcpy(netdev->dev_addr, hw->mac_addr, netdev->addr_len);
+ memcpy(netdev->perm_addr, hw->mac_addr, netdev->addr_len);
+
+ if (!is_valid_ether_addr(netdev->perm_addr))
+ DPRINTK(PROBE, ERR, "Invalid MAC Address\n");
+
+ e1000_get_bus_info(hw);
+
+ init_timer(&adapter->tx_fifo_stall_timer);
+ adapter->tx_fifo_stall_timer.function = &e1000_82547_tx_fifo_stall;
+ adapter->tx_fifo_stall_timer.data = (unsigned long)adapter;
+
+ init_timer(&adapter->watchdog_timer);
+ adapter->watchdog_timer.function = &e1000_watchdog;
+ adapter->watchdog_timer.data = (unsigned long) adapter;
+
+ init_timer(&adapter->phy_info_timer);
+ adapter->phy_info_timer.function = &e1000_update_phy_info;
+ adapter->phy_info_timer.data = (unsigned long)adapter;
+
+ INIT_WORK(&adapter->reset_task, e1000_reset_task);
+
+ e1000_check_options(adapter);
+
+ /* Initial Wake on LAN setting
+ * If APM wake is enabled in the EEPROM,
+ * enable the ACPI Magic Packet filter
+ */
+
+ switch (hw->mac_type) {
+ case e1000_82542_rev2_0:
+ case e1000_82542_rev2_1:
+ case e1000_82543:
+ break;
+ case e1000_82544:
+ e1000_read_eeprom(hw,
+ EEPROM_INIT_CONTROL2_REG, 1, &eeprom_data);
+ eeprom_apme_mask = E1000_EEPROM_82544_APM;
+ break;
+ case e1000_ich8lan:
+ e1000_read_eeprom(hw,
+ EEPROM_INIT_CONTROL1_REG, 1, &eeprom_data);
+ eeprom_apme_mask = E1000_EEPROM_ICH8_APME;
+ break;
+ case e1000_82546:
+ case e1000_82546_rev_3:
+ case e1000_82571:
+ case e1000_80003es2lan:
+ if (er32(STATUS) & E1000_STATUS_FUNC_1){
+ e1000_read_eeprom(hw,
+ EEPROM_INIT_CONTROL3_PORT_B, 1, &eeprom_data);
+ break;
+ }
+ /* Fall Through */
+ default:
+ e1000_read_eeprom(hw,
+ EEPROM_INIT_CONTROL3_PORT_A, 1, &eeprom_data);
+ break;
+ }
+ if (eeprom_data & eeprom_apme_mask)
+ adapter->eeprom_wol |= E1000_WUFC_MAG;
+
+ /* now that we have the eeprom settings, apply the special cases
+ * where the eeprom may be wrong or the board simply won't support
+ * wake on lan on a particular port */
+ switch (pdev->device) {
+ case E1000_DEV_ID_82546GB_PCIE:
+ adapter->eeprom_wol = 0;
+ break;
+ case E1000_DEV_ID_82546EB_FIBER:
+ case E1000_DEV_ID_82546GB_FIBER:
+ case E1000_DEV_ID_82571EB_FIBER:
+ /* Wake events only supported on port A for dual fiber
+ * regardless of eeprom setting */
+ if (er32(STATUS) & E1000_STATUS_FUNC_1)
+ adapter->eeprom_wol = 0;
+ break;
+ case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
+ case E1000_DEV_ID_82571EB_QUAD_COPPER:
+ case E1000_DEV_ID_82571EB_QUAD_FIBER:
+ case E1000_DEV_ID_82571EB_QUAD_COPPER_LOWPROFILE:
+ case E1000_DEV_ID_82571PT_QUAD_COPPER:
+ /* if quad port adapter, disable WoL on all but port A */
+ if (global_quad_port_a != 0)
+ adapter->eeprom_wol = 0;
+ else
+ adapter->quad_port_a = 1;
+ /* Reset for multiple quad port adapters */
+ if (++global_quad_port_a == 4)
+ global_quad_port_a = 0;
+ break;
+ }
+
+ /* initialize the wol settings based on the eeprom settings */
+ adapter->wol = adapter->eeprom_wol;
+ device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
+
+ /* print bus type/speed/width info */
+ DPRINTK(PROBE, INFO, "(PCI%s:%s:%s) ",
+ ((hw->bus_type == e1000_bus_type_pcix) ? "-X" :
+ (hw->bus_type == e1000_bus_type_pci_express ? " Express":"")),
+ ((hw->bus_speed == e1000_bus_speed_2500) ? "2.5Gb/s" :
+ (hw->bus_speed == e1000_bus_speed_133) ? "133MHz" :
+ (hw->bus_speed == e1000_bus_speed_120) ? "120MHz" :
+ (hw->bus_speed == e1000_bus_speed_100) ? "100MHz" :
+ (hw->bus_speed == e1000_bus_speed_66) ? "66MHz" : "33MHz"),
+ ((hw->bus_width == e1000_bus_width_64) ? "64-bit" :
+ (hw->bus_width == e1000_bus_width_pciex_4) ? "Width x4" :
+ (hw->bus_width == e1000_bus_width_pciex_1) ? "Width x1" :
+ "32-bit"));
+
+ printk("%pM\n", netdev->dev_addr);
+
+ if (hw->bus_type == e1000_bus_type_pci_express) {
+ DPRINTK(PROBE, WARNING, "This device (id %04x:%04x) will no "
+ "longer be supported by this driver in the future.\n",
+ pdev->vendor, pdev->device);
+ DPRINTK(PROBE, WARNING, "please use the \"e1000e\" "
+ "driver instead.\n");
+ }
+
+ /* reset the hardware with the new settings */
+ e1000_reset(adapter);
+
+ /* If the controller is 82573 and f/w is AMT, do not set
+ * DRV_LOAD until the interface is up. For all other cases,
+ * let the f/w know that the h/w is now under the control
+ * of the driver. */
+ if (hw->mac_type != e1000_82573 ||
+ !e1000_check_mng_mode(hw))
+ e1000_get_hw_control(adapter);
+
+ /* tell the stack to leave us alone until e1000_open() is called */
+ netif_carrier_off(netdev);
+ netif_stop_queue(netdev);
+
+ strcpy(netdev->name, "eth%d");
+ err = register_netdev(netdev);
+ if (err)
+ goto err_register;
+
+ DPRINTK(PROBE, INFO, "Intel(R) PRO/1000 Network Connection\n");
+
+ cards_found++;
+ return 0;
+
+err_register:
+ e1000_release_hw_control(adapter);
+err_eeprom:
+ if (!e1000_check_phy_reset_block(hw))
+ e1000_phy_hw_reset(hw);
+
+ if (hw->flash_address)
+ iounmap(hw->flash_address);
+err_flashmap:
+ kfree(adapter->tx_ring);
+ kfree(adapter->rx_ring);
+err_sw_init:
+ iounmap(hw->hw_addr);
+err_ioremap:
+ free_netdev(netdev);
+err_alloc_etherdev:
+ pci_release_selected_regions(pdev, bars);
+err_pci_reg:
+err_dma:
+ pci_disable_device(pdev);
+ return err;
+}
+
+/**
+ * e1000_remove - Device Removal Routine
+ * @pdev: PCI device information struct
+ *
+ * e1000_remove is called by the PCI subsystem to alert the driver
+ * that it should release a PCI device. The could be caused by a
+ * Hot-Plug event, or because the driver is going to be removed from
+ * memory.
+ **/
+
+static void __devexit e1000_remove(struct pci_dev *pdev)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+
+ cancel_work_sync(&adapter->reset_task);
+
+ e1000_release_manageability(adapter);
+
+ /* Release control of h/w to f/w. If f/w is AMT enabled, this
+ * would have already happened in close and is redundant. */
+ e1000_release_hw_control(adapter);
+
+ unregister_netdev(netdev);
+
+ if (!e1000_check_phy_reset_block(hw))
+ e1000_phy_hw_reset(hw);
+
+ kfree(adapter->tx_ring);
+ kfree(adapter->rx_ring);
+
+ iounmap(hw->hw_addr);
+ if (hw->flash_address)
+ iounmap(hw->flash_address);
+ pci_release_selected_regions(pdev, adapter->bars);
+
+ free_netdev(netdev);
+
+ pci_disable_device(pdev);
+}
+
+/**
+ * e1000_sw_init - Initialize general software structures (struct e1000_adapter)
+ * @adapter: board private structure to initialize
+ *
+ * e1000_sw_init initializes the Adapter private data structure.
+ * Fields are initialized based on PCI device information and
+ * OS network device settings (MTU size).
+ **/
+
+static int __devinit e1000_sw_init(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct net_device *netdev = adapter->netdev;
+ struct pci_dev *pdev = adapter->pdev;
+
+ /* PCI config space info */
+
+ hw->vendor_id = pdev->vendor;
+ hw->device_id = pdev->device;
+ hw->subsystem_vendor_id = pdev->subsystem_vendor;
+ hw->subsystem_id = pdev->subsystem_device;
+ hw->revision_id = pdev->revision;
+
+ pci_read_config_word(pdev, PCI_COMMAND, &hw->pci_cmd_word);
+
+ adapter->rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE;
+ hw->max_frame_size = netdev->mtu +
+ ENET_HEADER_SIZE + ETHERNET_FCS_SIZE;
+ hw->min_frame_size = MINIMUM_ETHERNET_FRAME_SIZE;
+
+ /* identify the MAC */
+
+ if (e1000_set_mac_type(hw)) {
+ DPRINTK(PROBE, ERR, "Unknown MAC Type\n");
+ return -EIO;
+ }
+
+ switch (hw->mac_type) {
+ default:
+ break;
+ case e1000_82541:
+ case e1000_82547:
+ case e1000_82541_rev_2:
+ case e1000_82547_rev_2:
+ hw->phy_init_script = 1;
+ break;
+ }
+
+ e1000_set_media_type(hw);
+
+ hw->wait_autoneg_complete = false;
+ hw->tbi_compatibility_en = true;
+ hw->adaptive_ifs = true;
+
+ /* Copper options */
+
+ if (hw->media_type == e1000_media_type_copper) {
+ hw->mdix = AUTO_ALL_MODES;
+ hw->disable_polarity_correction = false;
+ hw->master_slave = E1000_MASTER_SLAVE;
+ }
+
+ adapter->num_tx_queues = 1;
+ adapter->num_rx_queues = 1;
+
+ if (e1000_alloc_queues(adapter)) {
+ DPRINTK(PROBE, ERR, "Unable to allocate memory for queues\n");
+ return -ENOMEM;
+ }
+
+ spin_lock_init(&adapter->tx_queue_lock);
+
+ /* Explicitly disable IRQ since the NIC can be in any state. */
+ e1000_irq_disable(adapter);
+
+ spin_lock_init(&adapter->stats_lock);
+
+ set_bit(__E1000_DOWN, &adapter->flags);
+
+ return 0;
+}
+
+/**
+ * e1000_alloc_queues - Allocate memory for all rings
+ * @adapter: board private structure to initialize
+ *
+ * We allocate one ring per queue at run-time since we don't know the
+ * number of queues at compile-time.
+ **/
+
+static int __devinit e1000_alloc_queues(struct e1000_adapter *adapter)
+{
+ adapter->tx_ring = kcalloc(adapter->num_tx_queues,
+ sizeof(struct e1000_tx_ring), GFP_KERNEL);
+ if (!adapter->tx_ring)
+ return -ENOMEM;
+
+ adapter->rx_ring = kcalloc(adapter->num_rx_queues,
+ sizeof(struct e1000_rx_ring), GFP_KERNEL);
+ if (!adapter->rx_ring) {
+ kfree(adapter->tx_ring);
+ return -ENOMEM;
+ }
+
+ return E1000_SUCCESS;
+}
+
+/**
+ * e1000_open - Called when a network interface is made active
+ * @netdev: network interface device structure
+ *
+ * Returns 0 on success, negative value on failure
+ *
+ * The open entry point is called when a network interface is made
+ * active by the system (IFF_UP). At this point all resources needed
+ * for transmit and receive operations are allocated, the interrupt
+ * handler is registered with the OS, the watchdog timer is started,
+ * and the stack is notified that the interface is ready.
+ **/
+
+static int e1000_open(struct net_device *netdev)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ int err;
+
+ /* disallow open during test */
+ if (test_bit(__E1000_TESTING, &adapter->flags))
+ return -EBUSY;
+
+ /* allocate transmit descriptors */
+ err = e1000_setup_all_tx_resources(adapter);
+ if (err)
+ goto err_setup_tx;
+
+ /* allocate receive descriptors */
+ err = e1000_setup_all_rx_resources(adapter);
+ if (err)
+ goto err_setup_rx;
+
+ e1000_power_up_phy(adapter);
+
+ adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
+ if ((hw->mng_cookie.status &
+ E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT)) {
+ e1000_update_mng_vlan(adapter);
+ }
+
+ /* If AMT is enabled, let the firmware know that the network
+ * interface is now open */
+ if (hw->mac_type == e1000_82573 &&
+ e1000_check_mng_mode(hw))
+ e1000_get_hw_control(adapter);
+
+ /* before we allocate an interrupt, we must be ready to handle it.
+ * Setting DEBUG_SHIRQ in the kernel makes it fire an interrupt
+ * as soon as we call pci_request_irq, so we have to setup our
+ * clean_rx handler before we do so. */
+ e1000_configure(adapter);
+
+ err = e1000_request_irq(adapter);
+ if (err)
+ goto err_req_irq;
+
+ /* From here on the code is the same as e1000_up() */
+ clear_bit(__E1000_DOWN, &adapter->flags);
+
+ napi_enable(&adapter->napi);
+
+ e1000_irq_enable(adapter);
+
+ netif_start_queue(netdev);
+
+ /* fire a link status change interrupt to start the watchdog */
+ ew32(ICS, E1000_ICS_LSC);
+
+ return E1000_SUCCESS;
+
+err_req_irq:
+ e1000_release_hw_control(adapter);
+ e1000_power_down_phy(adapter);
+ e1000_free_all_rx_resources(adapter);
+err_setup_rx:
+ e1000_free_all_tx_resources(adapter);
+err_setup_tx:
+ e1000_reset(adapter);
+
+ return err;
+}
+
+/**
+ * e1000_close - Disables a network interface
+ * @netdev: network interface device structure
+ *
+ * Returns 0, this is not allowed to fail
+ *
+ * The close entry point is called when an interface is de-activated
+ * by the OS. The hardware is still under the drivers control, but
+ * needs to be disabled. A global MAC reset is issued to stop the
+ * hardware, and all transmit and receive resources are freed.
+ **/
+
+static int e1000_close(struct net_device *netdev)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+
+ WARN_ON(test_bit(__E1000_RESETTING, &adapter->flags));
+ e1000_down(adapter);
+ e1000_power_down_phy(adapter);
+ e1000_free_irq(adapter);
+
+ e1000_free_all_tx_resources(adapter);
+ e1000_free_all_rx_resources(adapter);
+
+ /* kill manageability vlan ID if supported, but not if a vlan with
+ * the same ID is registered on the host OS (let 8021q kill it) */
+ if ((hw->mng_cookie.status &
+ E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) &&
+ !(adapter->vlgrp &&
+ vlan_group_get_device(adapter->vlgrp, adapter->mng_vlan_id))) {
+ e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id);
+ }
+
+ /* If AMT is enabled, let the firmware know that the network
+ * interface is now closed */
+ if (hw->mac_type == e1000_82573 &&
+ e1000_check_mng_mode(hw))
+ e1000_release_hw_control(adapter);
+
+ return 0;
+}
+
+/**
+ * e1000_check_64k_bound - check that memory doesn't cross 64kB boundary
+ * @adapter: address of board private structure
+ * @start: address of beginning of memory
+ * @len: length of memory
+ **/
+static bool e1000_check_64k_bound(struct e1000_adapter *adapter, void *start,
+ unsigned long len)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ unsigned long begin = (unsigned long)start;
+ unsigned long end = begin + len;
+
+ /* First rev 82545 and 82546 need to not allow any memory
+ * write location to cross 64k boundary due to errata 23 */
+ if (hw->mac_type == e1000_82545 ||
+ hw->mac_type == e1000_82546) {
+ return ((begin ^ (end - 1)) >> 16) != 0 ? false : true;
+ }
+
+ return true;
+}
+
+/**
+ * e1000_setup_tx_resources - allocate Tx resources (Descriptors)
+ * @adapter: board private structure
+ * @txdr: tx descriptor ring (for a specific queue) to setup
+ *
+ * Return 0 on success, negative on failure
+ **/
+
+static int e1000_setup_tx_resources(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *txdr)
+{
+ struct pci_dev *pdev = adapter->pdev;
+ int size;
+
+ size = sizeof(struct e1000_buffer) * txdr->count;
+ txdr->buffer_info = vmalloc(size);
+ if (!txdr->buffer_info) {
+ DPRINTK(PROBE, ERR,
+ "Unable to allocate memory for the transmit descriptor ring\n");
+ return -ENOMEM;
+ }
+ memset(txdr->buffer_info, 0, size);
+
+ /* round up to nearest 4K */
+
+ txdr->size = txdr->count * sizeof(struct e1000_tx_desc);
+ txdr->size = ALIGN(txdr->size, 4096);
+
+ txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma);
+ if (!txdr->desc) {
+setup_tx_desc_die:
+ vfree(txdr->buffer_info);
+ DPRINTK(PROBE, ERR,
+ "Unable to allocate memory for the transmit descriptor ring\n");
+ return -ENOMEM;
+ }
+
+ /* Fix for errata 23, can't cross 64kB boundary */
+ if (!e1000_check_64k_bound(adapter, txdr->desc, txdr->size)) {
+ void *olddesc = txdr->desc;
+ dma_addr_t olddma = txdr->dma;
+ DPRINTK(TX_ERR, ERR, "txdr align check failed: %u bytes "
+ "at %p\n", txdr->size, txdr->desc);
+ /* Try again, without freeing the previous */
+ txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma);
+ /* Failed allocation, critical failure */
+ if (!txdr->desc) {
+ pci_free_consistent(pdev, txdr->size, olddesc, olddma);
+ goto setup_tx_desc_die;
+ }
+
+ if (!e1000_check_64k_bound(adapter, txdr->desc, txdr->size)) {
+ /* give up */
+ pci_free_consistent(pdev, txdr->size, txdr->desc,
+ txdr->dma);
+ pci_free_consistent(pdev, txdr->size, olddesc, olddma);
+ DPRINTK(PROBE, ERR,
+ "Unable to allocate aligned memory "
+ "for the transmit descriptor ring\n");
+ vfree(txdr->buffer_info);
+ return -ENOMEM;
+ } else {
+ /* Free old allocation, new allocation was successful */
+ pci_free_consistent(pdev, txdr->size, olddesc, olddma);
+ }
+ }
+ memset(txdr->desc, 0, txdr->size);
+
+ txdr->next_to_use = 0;
+ txdr->next_to_clean = 0;
+ spin_lock_init(&txdr->tx_lock);
+
+ return 0;
+}
+
+/**
+ * e1000_setup_all_tx_resources - wrapper to allocate Tx resources
+ * (Descriptors) for all queues
+ * @adapter: board private structure
+ *
+ * Return 0 on success, negative on failure
+ **/
+
+int e1000_setup_all_tx_resources(struct e1000_adapter *adapter)
+{
+ int i, err = 0;
+
+ for (i = 0; i < adapter->num_tx_queues; i++) {
+ err = e1000_setup_tx_resources(adapter, &adapter->tx_ring[i]);
+ if (err) {
+ DPRINTK(PROBE, ERR,
+ "Allocation for Tx Queue %u failed\n", i);
+ for (i-- ; i >= 0; i--)
+ e1000_free_tx_resources(adapter,
+ &adapter->tx_ring[i]);
+ break;
+ }
+ }
+
+ return err;
+}
+
+/**
+ * e1000_configure_tx - Configure 8254x Transmit Unit after Reset
+ * @adapter: board private structure
+ *
+ * Configure the Tx unit of the MAC after a reset.
+ **/
+
+static void e1000_configure_tx(struct e1000_adapter *adapter)
+{
+ u64 tdba;
+ struct e1000_hw *hw = &adapter->hw;
+ u32 tdlen, tctl, tipg, tarc;
+ u32 ipgr1, ipgr2;
+
+ /* Setup the HW Tx Head and Tail descriptor pointers */
+
+ switch (adapter->num_tx_queues) {
+ case 1:
+ default:
+ tdba = adapter->tx_ring[0].dma;
+ tdlen = adapter->tx_ring[0].count *
+ sizeof(struct e1000_tx_desc);
+ ew32(TDLEN, tdlen);
+ ew32(TDBAH, (tdba >> 32));
+ ew32(TDBAL, (tdba & 0x00000000ffffffffULL));
+ ew32(TDT, 0);
+ ew32(TDH, 0);
+ adapter->tx_ring[0].tdh = ((hw->mac_type >= e1000_82543) ? E1000_TDH : E1000_82542_TDH);
+ adapter->tx_ring[0].tdt = ((hw->mac_type >= e1000_82543) ? E1000_TDT : E1000_82542_TDT);
+ break;
+ }
+
+ /* Set the default values for the Tx Inter Packet Gap timer */
+ if (hw->mac_type <= e1000_82547_rev_2 &&
+ (hw->media_type == e1000_media_type_fiber ||
+ hw->media_type == e1000_media_type_internal_serdes))
+ tipg = DEFAULT_82543_TIPG_IPGT_FIBER;
+ else
+ tipg = DEFAULT_82543_TIPG_IPGT_COPPER;
+
+ switch (hw->mac_type) {
+ case e1000_82542_rev2_0:
+ case e1000_82542_rev2_1:
+ tipg = DEFAULT_82542_TIPG_IPGT;
+ ipgr1 = DEFAULT_82542_TIPG_IPGR1;
+ ipgr2 = DEFAULT_82542_TIPG_IPGR2;
+ break;
+ case e1000_80003es2lan:
+ ipgr1 = DEFAULT_82543_TIPG_IPGR1;
+ ipgr2 = DEFAULT_80003ES2LAN_TIPG_IPGR2;
+ break;
+ default:
+ ipgr1 = DEFAULT_82543_TIPG_IPGR1;
+ ipgr2 = DEFAULT_82543_TIPG_IPGR2;
+ break;
+ }
+ tipg |= ipgr1 << E1000_TIPG_IPGR1_SHIFT;
+ tipg |= ipgr2 << E1000_TIPG_IPGR2_SHIFT;
+ ew32(TIPG, tipg);
+
+ /* Set the Tx Interrupt Delay register */
+
+ ew32(TIDV, adapter->tx_int_delay);
+ if (hw->mac_type >= e1000_82540)
+ ew32(TADV, adapter->tx_abs_int_delay);
+
+ /* Program the Transmit Control Register */
+
+ tctl = er32(TCTL);
+ tctl &= ~E1000_TCTL_CT;
+ tctl |= E1000_TCTL_PSP | E1000_TCTL_RTLC |
+ (E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT);
+
+ if (hw->mac_type == e1000_82571 || hw->mac_type == e1000_82572) {
+ tarc = er32(TARC0);
+ /* set the speed mode bit, we'll clear it if we're not at
+ * gigabit link later */
+ tarc |= (1 << 21);
+ ew32(TARC0, tarc);
+ } else if (hw->mac_type == e1000_80003es2lan) {
+ tarc = er32(TARC0);
+ tarc |= 1;
+ ew32(TARC0, tarc);
+ tarc = er32(TARC1);
+ tarc |= 1;
+ ew32(TARC1, tarc);
+ }
+
+ e1000_config_collision_dist(hw);
+
+ /* Setup Transmit Descriptor Settings for eop descriptor */
+ adapter->txd_cmd = E1000_TXD_CMD_EOP | E1000_TXD_CMD_IFCS;
+
+ /* only set IDE if we are delaying interrupts using the timers */
+ if (adapter->tx_int_delay)
+ adapter->txd_cmd |= E1000_TXD_CMD_IDE;
+
+ if (hw->mac_type < e1000_82543)
+ adapter->txd_cmd |= E1000_TXD_CMD_RPS;
+ else
+ adapter->txd_cmd |= E1000_TXD_CMD_RS;
+
+ /* Cache if we're 82544 running in PCI-X because we'll
+ * need this to apply a workaround later in the send path. */
+ if (hw->mac_type == e1000_82544 &&
+ hw->bus_type == e1000_bus_type_pcix)
+ adapter->pcix_82544 = 1;
+
+ ew32(TCTL, tctl);
+
+}
+
+/**
+ * e1000_setup_rx_resources - allocate Rx resources (Descriptors)
+ * @adapter: board private structure
+ * @rxdr: rx descriptor ring (for a specific queue) to setup
+ *
+ * Returns 0 on success, negative on failure
+ **/
+
+static int e1000_setup_rx_resources(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rxdr)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct pci_dev *pdev = adapter->pdev;
+ int size, desc_len;
+
+ size = sizeof(struct e1000_buffer) * rxdr->count;
+ rxdr->buffer_info = vmalloc(size);
+ if (!rxdr->buffer_info) {
+ DPRINTK(PROBE, ERR,
+ "Unable to allocate memory for the receive descriptor ring\n");
+ return -ENOMEM;
+ }
+ memset(rxdr->buffer_info, 0, size);
+
+ if (hw->mac_type <= e1000_82547_rev_2)
+ desc_len = sizeof(struct e1000_rx_desc);
+ else
+ desc_len = sizeof(union e1000_rx_desc_packet_split);
+
+ /* Round up to nearest 4K */
+
+ rxdr->size = rxdr->count * desc_len;
+ rxdr->size = ALIGN(rxdr->size, 4096);
+
+ rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma);
+
+ if (!rxdr->desc) {
+ DPRINTK(PROBE, ERR,
+ "Unable to allocate memory for the receive descriptor ring\n");
+setup_rx_desc_die:
+ vfree(rxdr->buffer_info);
+ return -ENOMEM;
+ }
+
+ /* Fix for errata 23, can't cross 64kB boundary */
+ if (!e1000_check_64k_bound(adapter, rxdr->desc, rxdr->size)) {
+ void *olddesc = rxdr->desc;
+ dma_addr_t olddma = rxdr->dma;
+ DPRINTK(RX_ERR, ERR, "rxdr align check failed: %u bytes "
+ "at %p\n", rxdr->size, rxdr->desc);
+ /* Try again, without freeing the previous */
+ rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma);
+ /* Failed allocation, critical failure */
+ if (!rxdr->desc) {
+ pci_free_consistent(pdev, rxdr->size, olddesc, olddma);
+ DPRINTK(PROBE, ERR,
+ "Unable to allocate memory "
+ "for the receive descriptor ring\n");
+ goto setup_rx_desc_die;
+ }
+
+ if (!e1000_check_64k_bound(adapter, rxdr->desc, rxdr->size)) {
+ /* give up */
+ pci_free_consistent(pdev, rxdr->size, rxdr->desc,
+ rxdr->dma);
+ pci_free_consistent(pdev, rxdr->size, olddesc, olddma);
+ DPRINTK(PROBE, ERR,
+ "Unable to allocate aligned memory "
+ "for the receive descriptor ring\n");
+ goto setup_rx_desc_die;
+ } else {
+ /* Free old allocation, new allocation was successful */
+ pci_free_consistent(pdev, rxdr->size, olddesc, olddma);
+ }
+ }
+ memset(rxdr->desc, 0, rxdr->size);
+
+ rxdr->next_to_clean = 0;
+ rxdr->next_to_use = 0;
+
+ return 0;
+}
+
+/**
+ * e1000_setup_all_rx_resources - wrapper to allocate Rx resources
+ * (Descriptors) for all queues
+ * @adapter: board private structure
+ *
+ * Return 0 on success, negative on failure
+ **/
+
+int e1000_setup_all_rx_resources(struct e1000_adapter *adapter)
+{
+ int i, err = 0;
+
+ for (i = 0; i < adapter->num_rx_queues; i++) {
+ err = e1000_setup_rx_resources(adapter, &adapter->rx_ring[i]);
+ if (err) {
+ DPRINTK(PROBE, ERR,
+ "Allocation for Rx Queue %u failed\n", i);
+ for (i-- ; i >= 0; i--)
+ e1000_free_rx_resources(adapter,
+ &adapter->rx_ring[i]);
+ break;
+ }
+ }
+
+ return err;
+}
+
+/**
+ * e1000_setup_rctl - configure the receive control registers
+ * @adapter: Board private structure
+ **/
+#define PAGE_USE_COUNT(S) (((S) >> PAGE_SHIFT) + \
+ (((S) & (PAGE_SIZE - 1)) ? 1 : 0))
+static void e1000_setup_rctl(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 rctl;
+
+ rctl = er32(RCTL);
+
+ rctl &= ~(3 << E1000_RCTL_MO_SHIFT);
+
+ rctl |= E1000_RCTL_EN | E1000_RCTL_BAM |
+ E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
+ (hw->mc_filter_type << E1000_RCTL_MO_SHIFT);
+
+ if (hw->tbi_compatibility_on == 1)
+ rctl |= E1000_RCTL_SBP;
+ else
+ rctl &= ~E1000_RCTL_SBP;
+
+ if (adapter->netdev->mtu <= ETH_DATA_LEN)
+ rctl &= ~E1000_RCTL_LPE;
+ else
+ rctl |= E1000_RCTL_LPE;
+
+ /* Setup buffer sizes */
+ rctl &= ~E1000_RCTL_SZ_4096;
+ rctl |= E1000_RCTL_BSEX;
+ switch (adapter->rx_buffer_len) {
+ case E1000_RXBUFFER_256:
+ rctl |= E1000_RCTL_SZ_256;
+ rctl &= ~E1000_RCTL_BSEX;
+ break;
+ case E1000_RXBUFFER_512:
+ rctl |= E1000_RCTL_SZ_512;
+ rctl &= ~E1000_RCTL_BSEX;
+ break;
+ case E1000_RXBUFFER_1024:
+ rctl |= E1000_RCTL_SZ_1024;
+ rctl &= ~E1000_RCTL_BSEX;
+ break;
+ case E1000_RXBUFFER_2048:
+ default:
+ rctl |= E1000_RCTL_SZ_2048;
+ rctl &= ~E1000_RCTL_BSEX;
+ break;
+ case E1000_RXBUFFER_4096:
+ rctl |= E1000_RCTL_SZ_4096;
+ break;
+ case E1000_RXBUFFER_8192:
+ rctl |= E1000_RCTL_SZ_8192;
+ break;
+ case E1000_RXBUFFER_16384:
+ rctl |= E1000_RCTL_SZ_16384;
+ break;
+ }
+
+ ew32(RCTL, rctl);
+}
+
+/**
+ * e1000_configure_rx - Configure 8254x Receive Unit after Reset
+ * @adapter: board private structure
+ *
+ * Configure the Rx unit of the MAC after a reset.
+ **/
+
+static void e1000_configure_rx(struct e1000_adapter *adapter)
+{
+ u64 rdba;
+ struct e1000_hw *hw = &adapter->hw;
+ u32 rdlen, rctl, rxcsum, ctrl_ext;
+
+ rdlen = adapter->rx_ring[0].count *
+ sizeof(struct e1000_rx_desc);
+ adapter->clean_rx = e1000_clean_rx_irq;
+ adapter->alloc_rx_buf = e1000_alloc_rx_buffers;
+
+ /* disable receives while setting up the descriptors */
+ rctl = er32(RCTL);
+ ew32(RCTL, rctl & ~E1000_RCTL_EN);
+
+ /* set the Receive Delay Timer Register */
+ ew32(RDTR, adapter->rx_int_delay);
+
+ if (hw->mac_type >= e1000_82540) {
+ ew32(RADV, adapter->rx_abs_int_delay);
+ if (adapter->itr_setting != 0)
+ ew32(ITR, 1000000000 / (adapter->itr * 256));
+ }
+
+ if (hw->mac_type >= e1000_82571) {
+ ctrl_ext = er32(CTRL_EXT);
+ /* Reset delay timers after every interrupt */
+ ctrl_ext |= E1000_CTRL_EXT_INT_TIMER_CLR;
+ /* Auto-Mask interrupts upon ICR access */
+ ctrl_ext |= E1000_CTRL_EXT_IAME;
+ ew32(IAM, 0xffffffff);
+ ew32(CTRL_EXT, ctrl_ext);
+ E1000_WRITE_FLUSH();
+ }
+
+ /* Setup the HW Rx Head and Tail Descriptor Pointers and
+ * the Base and Length of the Rx Descriptor Ring */
+ switch (adapter->num_rx_queues) {
+ case 1:
+ default:
+ rdba = adapter->rx_ring[0].dma;
+ ew32(RDLEN, rdlen);
+ ew32(RDBAH, (rdba >> 32));
+ ew32(RDBAL, (rdba & 0x00000000ffffffffULL));
+ ew32(RDT, 0);
+ ew32(RDH, 0);
+ adapter->rx_ring[0].rdh = ((hw->mac_type >= e1000_82543) ? E1000_RDH : E1000_82542_RDH);
+ adapter->rx_ring[0].rdt = ((hw->mac_type >= e1000_82543) ? E1000_RDT : E1000_82542_RDT);
+ break;
+ }
+
+ /* Enable 82543 Receive Checksum Offload for TCP and UDP */
+ if (hw->mac_type >= e1000_82543) {
+ rxcsum = er32(RXCSUM);
+ if (adapter->rx_csum)
+ rxcsum |= E1000_RXCSUM_TUOFL;
+ else
+ /* don't need to clear IPPCSE as it defaults to 0 */
+ rxcsum &= ~E1000_RXCSUM_TUOFL;
+ ew32(RXCSUM, rxcsum);
+ }
+
+ /* Enable Receives */
+ ew32(RCTL, rctl);
+}
+
+/**
+ * e1000_free_tx_resources - Free Tx Resources per Queue
+ * @adapter: board private structure
+ * @tx_ring: Tx descriptor ring for a specific queue
+ *
+ * Free all transmit software resources
+ **/
+
+static void e1000_free_tx_resources(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *tx_ring)
+{
+ struct pci_dev *pdev = adapter->pdev;
+
+ e1000_clean_tx_ring(adapter, tx_ring);
+
+ vfree(tx_ring->buffer_info);
+ tx_ring->buffer_info = NULL;
+
+ pci_free_consistent(pdev, tx_ring->size, tx_ring->desc, tx_ring->dma);
+
+ tx_ring->desc = NULL;
+}
+
+/**
+ * e1000_free_all_tx_resources - Free Tx Resources for All Queues
+ * @adapter: board private structure
+ *
+ * Free all transmit software resources
+ **/
+
+void e1000_free_all_tx_resources(struct e1000_adapter *adapter)
+{
+ int i;
+
+ for (i = 0; i < adapter->num_tx_queues; i++)
+ e1000_free_tx_resources(adapter, &adapter->tx_ring[i]);
+}
+
+static void e1000_unmap_and_free_tx_resource(struct e1000_adapter *adapter,
+ struct e1000_buffer *buffer_info)
+{
+ if (buffer_info->dma) {
+ pci_unmap_page(adapter->pdev,
+ buffer_info->dma,
+ buffer_info->length,
+ PCI_DMA_TODEVICE);
+ buffer_info->dma = 0;
+ }
+ if (buffer_info->skb) {
+ dev_kfree_skb_any(buffer_info->skb);
+ buffer_info->skb = NULL;
+ }
+ /* buffer_info must be completely set up in the transmit path */
+}
+
+/**
+ * e1000_clean_tx_ring - Free Tx Buffers
+ * @adapter: board private structure
+ * @tx_ring: ring to be cleaned
+ **/
+
+static void e1000_clean_tx_ring(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *tx_ring)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct e1000_buffer *buffer_info;
+ unsigned long size;
+ unsigned int i;
+
+ /* Free all the Tx ring sk_buffs */
+
+ for (i = 0; i < tx_ring->count; i++) {
+ buffer_info = &tx_ring->buffer_info[i];
+ e1000_unmap_and_free_tx_resource(adapter, buffer_info);
+ }
+
+ size = sizeof(struct e1000_buffer) * tx_ring->count;
+ memset(tx_ring->buffer_info, 0, size);
+
+ /* Zero out the descriptor ring */
+
+ memset(tx_ring->desc, 0, tx_ring->size);
+
+ tx_ring->next_to_use = 0;
+ tx_ring->next_to_clean = 0;
+ tx_ring->last_tx_tso = 0;
+
+ writel(0, hw->hw_addr + tx_ring->tdh);
+ writel(0, hw->hw_addr + tx_ring->tdt);
+}
+
+/**
+ * e1000_clean_all_tx_rings - Free Tx Buffers for all queues
+ * @adapter: board private structure
+ **/
+
+static void e1000_clean_all_tx_rings(struct e1000_adapter *adapter)
+{
+ int i;
+
+ for (i = 0; i < adapter->num_tx_queues; i++)
+ e1000_clean_tx_ring(adapter, &adapter->tx_ring[i]);
+}
+
+/**
+ * e1000_free_rx_resources - Free Rx Resources
+ * @adapter: board private structure
+ * @rx_ring: ring to clean the resources from
+ *
+ * Free all receive software resources
+ **/
+
+static void e1000_free_rx_resources(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring)
+{
+ struct pci_dev *pdev = adapter->pdev;
+
+ e1000_clean_rx_ring(adapter, rx_ring);
+
+ vfree(rx_ring->buffer_info);
+ rx_ring->buffer_info = NULL;
+
+ pci_free_consistent(pdev, rx_ring->size, rx_ring->desc, rx_ring->dma);
+
+ rx_ring->desc = NULL;
+}
+
+/**
+ * e1000_free_all_rx_resources - Free Rx Resources for All Queues
+ * @adapter: board private structure
+ *
+ * Free all receive software resources
+ **/
+
+void e1000_free_all_rx_resources(struct e1000_adapter *adapter)
+{
+ int i;
+
+ for (i = 0; i < adapter->num_rx_queues; i++)
+ e1000_free_rx_resources(adapter, &adapter->rx_ring[i]);
+}
+
+/**
+ * e1000_clean_rx_ring - Free Rx Buffers per Queue
+ * @adapter: board private structure
+ * @rx_ring: ring to free buffers from
+ **/
+
+static void e1000_clean_rx_ring(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct e1000_buffer *buffer_info;
+ struct pci_dev *pdev = adapter->pdev;
+ unsigned long size;
+ unsigned int i;
+
+ /* Free all the Rx ring sk_buffs */
+ for (i = 0; i < rx_ring->count; i++) {
+ buffer_info = &rx_ring->buffer_info[i];
+ if (buffer_info->skb) {
+ pci_unmap_single(pdev,
+ buffer_info->dma,
+ buffer_info->length,
+ PCI_DMA_FROMDEVICE);
+
+ dev_kfree_skb(buffer_info->skb);
+ buffer_info->skb = NULL;
+ }
+ }
+
+ size = sizeof(struct e1000_buffer) * rx_ring->count;
+ memset(rx_ring->buffer_info, 0, size);
+
+ /* Zero out the descriptor ring */
+
+ memset(rx_ring->desc, 0, rx_ring->size);
+
+ rx_ring->next_to_clean = 0;
+ rx_ring->next_to_use = 0;
+
+ writel(0, hw->hw_addr + rx_ring->rdh);
+ writel(0, hw->hw_addr + rx_ring->rdt);
+}
+
+/**
+ * e1000_clean_all_rx_rings - Free Rx Buffers for all queues
+ * @adapter: board private structure
+ **/
+
+static void e1000_clean_all_rx_rings(struct e1000_adapter *adapter)
+{
+ int i;
+
+ for (i = 0; i < adapter->num_rx_queues; i++)
+ e1000_clean_rx_ring(adapter, &adapter->rx_ring[i]);
+}
+
+/* The 82542 2.0 (revision 2) needs to have the receive unit in reset
+ * and memory write and invalidate disabled for certain operations
+ */
+static void e1000_enter_82542_rst(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct net_device *netdev = adapter->netdev;
+ u32 rctl;
+
+ e1000_pci_clear_mwi(hw);
+
+ rctl = er32(RCTL);
+ rctl |= E1000_RCTL_RST;
+ ew32(RCTL, rctl);
+ E1000_WRITE_FLUSH();
+ mdelay(5);
+
+ if (netif_running(netdev))
+ e1000_clean_all_rx_rings(adapter);
+}
+
+static void e1000_leave_82542_rst(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct net_device *netdev = adapter->netdev;
+ u32 rctl;
+
+ rctl = er32(RCTL);
+ rctl &= ~E1000_RCTL_RST;
+ ew32(RCTL, rctl);
+ E1000_WRITE_FLUSH();
+ mdelay(5);
+
+ if (hw->pci_cmd_word & PCI_COMMAND_INVALIDATE)
+ e1000_pci_set_mwi(hw);
+
+ if (netif_running(netdev)) {
+ /* No need to loop, because 82542 supports only 1 queue */
+ struct e1000_rx_ring *ring = &adapter->rx_ring[0];
+ e1000_configure_rx(adapter);
+ adapter->alloc_rx_buf(adapter, ring, E1000_DESC_UNUSED(ring));
+ }
+}
+
+/**
+ * e1000_set_mac - Change the Ethernet Address of the NIC
+ * @netdev: network interface device structure
+ * @p: pointer to an address structure
+ *
+ * Returns 0 on success, negative on failure
+ **/
+
+static int e1000_set_mac(struct net_device *netdev, void *p)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ struct sockaddr *addr = p;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ /* 82542 2.0 needs to be in reset to write receive address registers */
+
+ if (hw->mac_type == e1000_82542_rev2_0)
+ e1000_enter_82542_rst(adapter);
+
+ memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+ memcpy(hw->mac_addr, addr->sa_data, netdev->addr_len);
+
+ e1000_rar_set(hw, hw->mac_addr, 0);
+
+ /* With 82571 controllers, LAA may be overwritten (with the default)
+ * due to controller reset from the other port. */
+ if (hw->mac_type == e1000_82571) {
+ /* activate the work around */
+ hw->laa_is_present = 1;
+
+ /* Hold a copy of the LAA in RAR[14] This is done so that
+ * between the time RAR[0] gets clobbered and the time it
+ * gets fixed (in e1000_watchdog), the actual LAA is in one
+ * of the RARs and no incoming packets directed to this port
+ * are dropped. Eventaully the LAA will be in RAR[0] and
+ * RAR[14] */
+ e1000_rar_set(hw, hw->mac_addr,
+ E1000_RAR_ENTRIES - 1);
+ }
+
+ if (hw->mac_type == e1000_82542_rev2_0)
+ e1000_leave_82542_rst(adapter);
+
+ return 0;
+}
+
+/**
+ * e1000_set_rx_mode - Secondary Unicast, Multicast and Promiscuous mode set
+ * @netdev: network interface device structure
+ *
+ * The set_rx_mode entry point is called whenever the unicast or multicast
+ * address lists or the network interface flags are updated. This routine is
+ * responsible for configuring the hardware for proper unicast, multicast,
+ * promiscuous mode, and all-multi behavior.
+ **/
+
+static void e1000_set_rx_mode(struct net_device *netdev)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ struct dev_addr_list *uc_ptr;
+ struct dev_addr_list *mc_ptr;
+ u32 rctl;
+ u32 hash_value;
+ int i, rar_entries = E1000_RAR_ENTRIES;
+ int mta_reg_count = (hw->mac_type == e1000_ich8lan) ?
+ E1000_NUM_MTA_REGISTERS_ICH8LAN :
+ E1000_NUM_MTA_REGISTERS;
+
+ if (hw->mac_type == e1000_ich8lan)
+ rar_entries = E1000_RAR_ENTRIES_ICH8LAN;
+
+ /* reserve RAR[14] for LAA over-write work-around */
+ if (hw->mac_type == e1000_82571)
+ rar_entries--;
+
+ /* Check for Promiscuous and All Multicast modes */
+
+ rctl = er32(RCTL);
+
+ if (netdev->flags & IFF_PROMISC) {
+ rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE);
+ rctl &= ~E1000_RCTL_VFE;
+ } else {
+ if (netdev->flags & IFF_ALLMULTI) {
+ rctl |= E1000_RCTL_MPE;
+ } else {
+ rctl &= ~E1000_RCTL_MPE;
+ }
+ if (adapter->hw.mac_type != e1000_ich8lan)
+ rctl |= E1000_RCTL_VFE;
+ }
+
+ uc_ptr = NULL;
+ if (netdev->uc_count > rar_entries - 1) {
+ rctl |= E1000_RCTL_UPE;
+ } else if (!(netdev->flags & IFF_PROMISC)) {
+ rctl &= ~E1000_RCTL_UPE;
+ uc_ptr = netdev->uc_list;
+ }
+
+ ew32(RCTL, rctl);
+
+ /* 82542 2.0 needs to be in reset to write receive address registers */
+
+ if (hw->mac_type == e1000_82542_rev2_0)
+ e1000_enter_82542_rst(adapter);
+
+ /* load the first 14 addresses into the exact filters 1-14. Unicast
+ * addresses take precedence to avoid disabling unicast filtering
+ * when possible.
+ *
+ * RAR 0 is used for the station MAC adddress
+ * if there are not 14 addresses, go ahead and clear the filters
+ * -- with 82571 controllers only 0-13 entries are filled here
+ */
+ mc_ptr = netdev->mc_list;
+
+ for (i = 1; i < rar_entries; i++) {
+ if (uc_ptr) {
+ e1000_rar_set(hw, uc_ptr->da_addr, i);
+ uc_ptr = uc_ptr->next;
+ } else if (mc_ptr) {
+ e1000_rar_set(hw, mc_ptr->da_addr, i);
+ mc_ptr = mc_ptr->next;
+ } else {
+ E1000_WRITE_REG_ARRAY(hw, RA, i << 1, 0);
+ E1000_WRITE_FLUSH();
+ E1000_WRITE_REG_ARRAY(hw, RA, (i << 1) + 1, 0);
+ E1000_WRITE_FLUSH();
+ }
+ }
+ WARN_ON(uc_ptr != NULL);
+
+ /* clear the old settings from the multicast hash table */
+
+ for (i = 0; i < mta_reg_count; i++) {
+ E1000_WRITE_REG_ARRAY(hw, MTA, i, 0);
+ E1000_WRITE_FLUSH();
+ }
+
+ /* load any remaining addresses into the hash table */
+
+ for (; mc_ptr; mc_ptr = mc_ptr->next) {
+ hash_value = e1000_hash_mc_addr(hw, mc_ptr->da_addr);
+ e1000_mta_set(hw, hash_value);
+ }
+
+ if (hw->mac_type == e1000_82542_rev2_0)
+ e1000_leave_82542_rst(adapter);
+}
+
+/* Need to wait a few seconds after link up to get diagnostic information from
+ * the phy */
+
+static void e1000_update_phy_info(unsigned long data)
+{
+ struct e1000_adapter *adapter = (struct e1000_adapter *)data;
+ struct e1000_hw *hw = &adapter->hw;
+ e1000_phy_get_info(hw, &adapter->phy_info);
+}
+
+/**
+ * e1000_82547_tx_fifo_stall - Timer Call-back
+ * @data: pointer to adapter cast into an unsigned long
+ **/
+
+static void e1000_82547_tx_fifo_stall(unsigned long data)
+{
+ struct e1000_adapter *adapter = (struct e1000_adapter *)data;
+ struct e1000_hw *hw = &adapter->hw;
+ struct net_device *netdev = adapter->netdev;
+ u32 tctl;
+
+ if (atomic_read(&adapter->tx_fifo_stall)) {
+ if ((er32(TDT) == er32(TDH)) &&
+ (er32(TDFT) == er32(TDFH)) &&
+ (er32(TDFTS) == er32(TDFHS))) {
+ tctl = er32(TCTL);
+ ew32(TCTL, tctl & ~E1000_TCTL_EN);
+ ew32(TDFT, adapter->tx_head_addr);
+ ew32(TDFH, adapter->tx_head_addr);
+ ew32(TDFTS, adapter->tx_head_addr);
+ ew32(TDFHS, adapter->tx_head_addr);
+ ew32(TCTL, tctl);
+ E1000_WRITE_FLUSH();
+
+ adapter->tx_fifo_head = 0;
+ atomic_set(&adapter->tx_fifo_stall, 0);
+ netif_wake_queue(netdev);
+ } else {
+ mod_timer(&adapter->tx_fifo_stall_timer, jiffies + 1);
+ }
+ }
+}
+
+/**
+ * e1000_watchdog - Timer Call-back
+ * @data: pointer to adapter cast into an unsigned long
+ **/
+static void e1000_watchdog(unsigned long data)
+{
+ struct e1000_adapter *adapter = (struct e1000_adapter *)data;
+ struct e1000_hw *hw = &adapter->hw;
+ struct net_device *netdev = adapter->netdev;
+ struct e1000_tx_ring *txdr = adapter->tx_ring;
+ u32 link, tctl;
+ s32 ret_val;
+
+ ret_val = e1000_check_for_link(hw);
+ if ((ret_val == E1000_ERR_PHY) &&
+ (hw->phy_type == e1000_phy_igp_3) &&
+ (er32(CTRL) & E1000_PHY_CTRL_GBE_DISABLE)) {
+ /* See e1000_kumeran_lock_loss_workaround() */
+ DPRINTK(LINK, INFO,
+ "Gigabit has been disabled, downgrading speed\n");
+ }
+
+ if (hw->mac_type == e1000_82573) {
+ e1000_enable_tx_pkt_filtering(hw);
+ if (adapter->mng_vlan_id != hw->mng_cookie.vlan_id)
+ e1000_update_mng_vlan(adapter);
+ }
+
+ if ((hw->media_type == e1000_media_type_internal_serdes) &&
+ !(er32(TXCW) & E1000_TXCW_ANE))
+ link = !hw->serdes_link_down;
+ else
+ link = er32(STATUS) & E1000_STATUS_LU;
+
+ if (link) {
+ if (!netif_carrier_ok(netdev)) {
+ u32 ctrl;
+ bool txb2b = true;
+ e1000_get_speed_and_duplex(hw,
+ &adapter->link_speed,
+ &adapter->link_duplex);
+
+ ctrl = er32(CTRL);
+ printk(KERN_INFO "e1000: %s NIC Link is Up %d Mbps %s, "
+ "Flow Control: %s\n",
+ netdev->name,
+ adapter->link_speed,
+ adapter->link_duplex == FULL_DUPLEX ?
+ "Full Duplex" : "Half Duplex",
+ ((ctrl & E1000_CTRL_TFCE) && (ctrl &
+ E1000_CTRL_RFCE)) ? "RX/TX" : ((ctrl &
+ E1000_CTRL_RFCE) ? "RX" : ((ctrl &
+ E1000_CTRL_TFCE) ? "TX" : "None" )));
+
+ /* tweak tx_queue_len according to speed/duplex
+ * and adjust the timeout factor */
+ netdev->tx_queue_len = adapter->tx_queue_len;
+ adapter->tx_timeout_factor = 1;
+ switch (adapter->link_speed) {
+ case SPEED_10:
+ txb2b = false;
+ netdev->tx_queue_len = 10;
+ adapter->tx_timeout_factor = 8;
+ break;
+ case SPEED_100:
+ txb2b = false;
+ netdev->tx_queue_len = 100;
+ /* maybe add some timeout factor ? */
+ break;
+ }
+
+ if ((hw->mac_type == e1000_82571 ||
+ hw->mac_type == e1000_82572) &&
+ !txb2b) {
+ u32 tarc0;
+ tarc0 = er32(TARC0);
+ tarc0 &= ~(1 << 21);
+ ew32(TARC0, tarc0);
+ }
+
+ /* disable TSO for pcie and 10/100 speeds, to avoid
+ * some hardware issues */
+ if (!adapter->tso_force &&
+ hw->bus_type == e1000_bus_type_pci_express){
+ switch (adapter->link_speed) {
+ case SPEED_10:
+ case SPEED_100:
+ DPRINTK(PROBE,INFO,
+ "10/100 speed: disabling TSO\n");
+ netdev->features &= ~NETIF_F_TSO;
+ netdev->features &= ~NETIF_F_TSO6;
+ break;
+ case SPEED_1000:
+ netdev->features |= NETIF_F_TSO;
+ netdev->features |= NETIF_F_TSO6;
+ break;
+ default:
+ /* oops */
+ break;
+ }
+ }
+
+ /* enable transmits in the hardware, need to do this
+ * after setting TARC0 */
+ tctl = er32(TCTL);
+ tctl |= E1000_TCTL_EN;
+ ew32(TCTL, tctl);
+
+ netif_carrier_on(netdev);
+ netif_wake_queue(netdev);
+ mod_timer(&adapter->phy_info_timer, round_jiffies(jiffies + 2 * HZ));
+ adapter->smartspeed = 0;
+ } else {
+ /* make sure the receive unit is started */
+ if (hw->rx_needs_kicking) {
+ u32 rctl = er32(RCTL);
+ ew32(RCTL, rctl | E1000_RCTL_EN);
+ }
+ }
+ } else {
+ if (netif_carrier_ok(netdev)) {
+ adapter->link_speed = 0;
+ adapter->link_duplex = 0;
+ printk(KERN_INFO "e1000: %s NIC Link is Down\n",
+ netdev->name);
+ netif_carrier_off(netdev);
+ netif_stop_queue(netdev);
+ mod_timer(&adapter->phy_info_timer, round_jiffies(jiffies + 2 * HZ));
+
+ /* 80003ES2LAN workaround--
+ * For packet buffer work-around on link down event;
+ * disable receives in the ISR and
+ * reset device here in the watchdog
+ */
+ if (hw->mac_type == e1000_80003es2lan)
+ /* reset device */
+ schedule_work(&adapter->reset_task);
+ }
+
+ e1000_smartspeed(adapter);
+ }
+
+ e1000_update_stats(adapter);
+
+ hw->tx_packet_delta = adapter->stats.tpt - adapter->tpt_old;
+ adapter->tpt_old = adapter->stats.tpt;
+ hw->collision_delta = adapter->stats.colc - adapter->colc_old;
+ adapter->colc_old = adapter->stats.colc;
+
+ adapter->gorcl = adapter->stats.gorcl - adapter->gorcl_old;
+ adapter->gorcl_old = adapter->stats.gorcl;
+ adapter->gotcl = adapter->stats.gotcl - adapter->gotcl_old;
+ adapter->gotcl_old = adapter->stats.gotcl;
+
+ e1000_update_adaptive(hw);
+
+ if (!netif_carrier_ok(netdev)) {
+ if (E1000_DESC_UNUSED(txdr) + 1 < txdr->count) {
+ /* We've lost link, so the controller stops DMA,
+ * but we've got queued Tx work that's never going
+ * to get done, so reset controller to flush Tx.
+ * (Do the reset outside of interrupt context). */
+ adapter->tx_timeout_count++;
+ schedule_work(&adapter->reset_task);
+ }
+ }
+
+ /* Cause software interrupt to ensure rx ring is cleaned */
+ ew32(ICS, E1000_ICS_RXDMT0);
+
+ /* Force detection of hung controller every watchdog period */
+ adapter->detect_tx_hung = true;
+
+ /* With 82571 controllers, LAA may be overwritten due to controller
+ * reset from the other port. Set the appropriate LAA in RAR[0] */
+ if (hw->mac_type == e1000_82571 && hw->laa_is_present)
+ e1000_rar_set(hw, hw->mac_addr, 0);
+
+ /* Reset the timer */
+ mod_timer(&adapter->watchdog_timer, round_jiffies(jiffies + 2 * HZ));
+}
+
+enum latency_range {
+ lowest_latency = 0,
+ low_latency = 1,
+ bulk_latency = 2,
+ latency_invalid = 255
+};
+
+/**
+ * e1000_update_itr - update the dynamic ITR value based on statistics
+ * Stores a new ITR value based on packets and byte
+ * counts during the last interrupt. The advantage of per interrupt
+ * computation is faster updates and more accurate ITR for the current
+ * traffic pattern. Constants in this function were computed
+ * based on theoretical maximum wire speed and thresholds were set based
+ * on testing data as well as attempting to minimize response time
+ * while increasing bulk throughput.
+ * this functionality is controlled by the InterruptThrottleRate module
+ * parameter (see e1000_param.c)
+ * @adapter: pointer to adapter
+ * @itr_setting: current adapter->itr
+ * @packets: the number of packets during this measurement interval
+ * @bytes: the number of bytes during this measurement interval
+ **/
+static unsigned int e1000_update_itr(struct e1000_adapter *adapter,
+ u16 itr_setting, int packets, int bytes)
+{
+ unsigned int retval = itr_setting;
+ struct e1000_hw *hw = &adapter->hw;
+
+ if (unlikely(hw->mac_type < e1000_82540))
+ goto update_itr_done;
+
+ if (packets == 0)
+ goto update_itr_done;
+
+ switch (itr_setting) {
+ case lowest_latency:
+ /* jumbo frames get bulk treatment*/
+ if (bytes/packets > 8000)
+ retval = bulk_latency;
+ else if ((packets < 5) && (bytes > 512))
+ retval = low_latency;
+ break;
+ case low_latency: /* 50 usec aka 20000 ints/s */
+ if (bytes > 10000) {
+ /* jumbo frames need bulk latency setting */
+ if (bytes/packets > 8000)
+ retval = bulk_latency;
+ else if ((packets < 10) || ((bytes/packets) > 1200))
+ retval = bulk_latency;
+ else if ((packets > 35))
+ retval = lowest_latency;
+ } else if (bytes/packets > 2000)
+ retval = bulk_latency;
+ else if (packets <= 2 && bytes < 512)
+ retval = lowest_latency;
+ break;
+ case bulk_latency: /* 250 usec aka 4000 ints/s */
+ if (bytes > 25000) {
+ if (packets > 35)
+ retval = low_latency;
+ } else if (bytes < 6000) {
+ retval = low_latency;
+ }
+ break;
+ }
+
+update_itr_done:
+ return retval;
+}
+
+static void e1000_set_itr(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u16 current_itr;
+ u32 new_itr = adapter->itr;
+
+ if (unlikely(hw->mac_type < e1000_82540))
+ return;
+
+ /* for non-gigabit speeds, just fix the interrupt rate at 4000 */
+ if (unlikely(adapter->link_speed != SPEED_1000)) {
+ current_itr = 0;
+ new_itr = 4000;
+ goto set_itr_now;
+ }
+
+ adapter->tx_itr = e1000_update_itr(adapter,
+ adapter->tx_itr,
+ adapter->total_tx_packets,
+ adapter->total_tx_bytes);
+ /* conservative mode (itr 3) eliminates the lowest_latency setting */
+ if (adapter->itr_setting == 3 && adapter->tx_itr == lowest_latency)
+ adapter->tx_itr = low_latency;
+
+ adapter->rx_itr = e1000_update_itr(adapter,
+ adapter->rx_itr,
+ adapter->total_rx_packets,
+ adapter->total_rx_bytes);
+ /* conservative mode (itr 3) eliminates the lowest_latency setting */
+ if (adapter->itr_setting == 3 && adapter->rx_itr == lowest_latency)
+ adapter->rx_itr = low_latency;
+
+ current_itr = max(adapter->rx_itr, adapter->tx_itr);
+
+ switch (current_itr) {
+ /* counts and packets in update_itr are dependent on these numbers */
+ case lowest_latency:
+ new_itr = 70000;
+ break;
+ case low_latency:
+ new_itr = 20000; /* aka hwitr = ~200 */
+ break;
+ case bulk_latency:
+ new_itr = 4000;
+ break;
+ default:
+ break;
+ }
+
+set_itr_now:
+ if (new_itr != adapter->itr) {
+ /* this attempts to bias the interrupt rate towards Bulk
+ * by adding intermediate steps when interrupt rate is
+ * increasing */
+ new_itr = new_itr > adapter->itr ?
+ min(adapter->itr + (new_itr >> 2), new_itr) :
+ new_itr;
+ adapter->itr = new_itr;
+ ew32(ITR, 1000000000 / (new_itr * 256));
+ }
+
+ return;
+}
+
+#define E1000_TX_FLAGS_CSUM 0x00000001
+#define E1000_TX_FLAGS_VLAN 0x00000002
+#define E1000_TX_FLAGS_TSO 0x00000004
+#define E1000_TX_FLAGS_IPV4 0x00000008
+#define E1000_TX_FLAGS_VLAN_MASK 0xffff0000
+#define E1000_TX_FLAGS_VLAN_SHIFT 16
+
+static int e1000_tso(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *tx_ring, struct sk_buff *skb)
+{
+ struct e1000_context_desc *context_desc;
+ struct e1000_buffer *buffer_info;
+ unsigned int i;
+ u32 cmd_length = 0;
+ u16 ipcse = 0, tucse, mss;
+ u8 ipcss, ipcso, tucss, tucso, hdr_len;
+ int err;
+
+ if (skb_is_gso(skb)) {
+ if (skb_header_cloned(skb)) {
+ err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
+ if (err)
+ return err;
+ }
+
+ hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
+ mss = skb_shinfo(skb)->gso_size;
+ if (skb->protocol == htons(ETH_P_IP)) {
+ struct iphdr *iph = ip_hdr(skb);
+ iph->tot_len = 0;
+ iph->check = 0;
+ tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
+ iph->daddr, 0,
+ IPPROTO_TCP,
+ 0);
+ cmd_length = E1000_TXD_CMD_IP;
+ ipcse = skb_transport_offset(skb) - 1;
+ } else if (skb->protocol == htons(ETH_P_IPV6)) {
+ ipv6_hdr(skb)->payload_len = 0;
+ tcp_hdr(skb)->check =
+ ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
+ &ipv6_hdr(skb)->daddr,
+ 0, IPPROTO_TCP, 0);
+ ipcse = 0;
+ }
+ ipcss = skb_network_offset(skb);
+ ipcso = (void *)&(ip_hdr(skb)->check) - (void *)skb->data;
+ tucss = skb_transport_offset(skb);
+ tucso = (void *)&(tcp_hdr(skb)->check) - (void *)skb->data;
+ tucse = 0;
+
+ cmd_length |= (E1000_TXD_CMD_DEXT | E1000_TXD_CMD_TSE |
+ E1000_TXD_CMD_TCP | (skb->len - (hdr_len)));
+
+ i = tx_ring->next_to_use;
+ context_desc = E1000_CONTEXT_DESC(*tx_ring, i);
+ buffer_info = &tx_ring->buffer_info[i];
+
+ context_desc->lower_setup.ip_fields.ipcss = ipcss;
+ context_desc->lower_setup.ip_fields.ipcso = ipcso;
+ context_desc->lower_setup.ip_fields.ipcse = cpu_to_le16(ipcse);
+ context_desc->upper_setup.tcp_fields.tucss = tucss;
+ context_desc->upper_setup.tcp_fields.tucso = tucso;
+ context_desc->upper_setup.tcp_fields.tucse = cpu_to_le16(tucse);
+ context_desc->tcp_seg_setup.fields.mss = cpu_to_le16(mss);
+ context_desc->tcp_seg_setup.fields.hdr_len = hdr_len;
+ context_desc->cmd_and_length = cpu_to_le32(cmd_length);
+
+ buffer_info->time_stamp = jiffies;
+ buffer_info->next_to_watch = i;
+
+ if (++i == tx_ring->count) i = 0;
+ tx_ring->next_to_use = i;
+
+ return true;
+ }
+ return false;
+}
+
+static bool e1000_tx_csum(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *tx_ring, struct sk_buff *skb)
+{
+ struct e1000_context_desc *context_desc;
+ struct e1000_buffer *buffer_info;
+ unsigned int i;
+ u8 css;
+ u32 cmd_len = E1000_TXD_CMD_DEXT;
+
+ if (skb->ip_summed != CHECKSUM_PARTIAL)
+ return false;
+
+ switch (skb->protocol) {
+ case __constant_htons(ETH_P_IP):
+ if (ip_hdr(skb)->protocol == IPPROTO_TCP)
+ cmd_len |= E1000_TXD_CMD_TCP;
+ break;
+ case __constant_htons(ETH_P_IPV6):
+ /* XXX not handling all IPV6 headers */
+ if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP)
+ cmd_len |= E1000_TXD_CMD_TCP;
+ break;
+ default:
+ if (unlikely(net_ratelimit()))
+ DPRINTK(DRV, WARNING,
+ "checksum_partial proto=%x!\n", skb->protocol);
+ break;
+ }
+
+ css = skb_transport_offset(skb);
+
+ i = tx_ring->next_to_use;
+ buffer_info = &tx_ring->buffer_info[i];
+ context_desc = E1000_CONTEXT_DESC(*tx_ring, i);
+
+ context_desc->lower_setup.ip_config = 0;
+ context_desc->upper_setup.tcp_fields.tucss = css;
+ context_desc->upper_setup.tcp_fields.tucso =
+ css + skb->csum_offset;
+ context_desc->upper_setup.tcp_fields.tucse = 0;
+ context_desc->tcp_seg_setup.data = 0;
+ context_desc->cmd_and_length = cpu_to_le32(cmd_len);
+
+ buffer_info->time_stamp = jiffies;
+ buffer_info->next_to_watch = i;
+
+ if (unlikely(++i == tx_ring->count)) i = 0;
+ tx_ring->next_to_use = i;
+
+ return true;
+}
+
+#define E1000_MAX_TXD_PWR 12
+#define E1000_MAX_DATA_PER_TXD (1<<E1000_MAX_TXD_PWR)
+
+static int e1000_tx_map(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *tx_ring,
+ struct sk_buff *skb, unsigned int first,
+ unsigned int max_per_txd, unsigned int nr_frags,
+ unsigned int mss)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct e1000_buffer *buffer_info;
+ unsigned int len = skb->len;
+ unsigned int offset = 0, size, count = 0, i;
+ unsigned int f;
+ len -= skb->data_len;
+
+ i = tx_ring->next_to_use;
+
+ while (len) {
+ buffer_info = &tx_ring->buffer_info[i];
+ size = min(len, max_per_txd);
+ /* Workaround for Controller erratum --
+ * descriptor for non-tso packet in a linear SKB that follows a
+ * tso gets written back prematurely before the data is fully
+ * DMA'd to the controller */
+ if (!skb->data_len && tx_ring->last_tx_tso &&
+ !skb_is_gso(skb)) {
+ tx_ring->last_tx_tso = 0;
+ size -= 4;
+ }
+
+ /* Workaround for premature desc write-backs
+ * in TSO mode. Append 4-byte sentinel desc */
+ if (unlikely(mss && !nr_frags && size == len && size > 8))
+ size -= 4;
+ /* work-around for errata 10 and it applies
+ * to all controllers in PCI-X mode
+ * The fix is to make sure that the first descriptor of a
+ * packet is smaller than 2048 - 16 - 16 (or 2016) bytes
+ */
+ if (unlikely((hw->bus_type == e1000_bus_type_pcix) &&
+ (size > 2015) && count == 0))
+ size = 2015;
+
+ /* Workaround for potential 82544 hang in PCI-X. Avoid
+ * terminating buffers within evenly-aligned dwords. */
+ if (unlikely(adapter->pcix_82544 &&
+ !((unsigned long)(skb->data + offset + size - 1) & 4) &&
+ size > 4))
+ size -= 4;
+
+ buffer_info->length = size;
+ buffer_info->dma =
+ pci_map_single(adapter->pdev,
+ skb->data + offset,
+ size,
+ PCI_DMA_TODEVICE);
+ buffer_info->time_stamp = jiffies;
+ buffer_info->next_to_watch = i;
+
+ len -= size;
+ offset += size;
+ count++;
+ if (unlikely(++i == tx_ring->count)) i = 0;
+ }
+
+ for (f = 0; f < nr_frags; f++) {
+ struct skb_frag_struct *frag;
+
+ frag = &skb_shinfo(skb)->frags[f];
+ len = frag->size;
+ offset = frag->page_offset;
+
+ while (len) {
+ buffer_info = &tx_ring->buffer_info[i];
+ size = min(len, max_per_txd);
+ /* Workaround for premature desc write-backs
+ * in TSO mode. Append 4-byte sentinel desc */
+ if (unlikely(mss && f == (nr_frags-1) && size == len && size > 8))
+ size -= 4;
+ /* Workaround for potential 82544 hang in PCI-X.
+ * Avoid terminating buffers within evenly-aligned
+ * dwords. */
+ if (unlikely(adapter->pcix_82544 &&
+ !((unsigned long)(frag->page+offset+size-1) & 4) &&
+ size > 4))
+ size -= 4;
+
+ buffer_info->length = size;
+ buffer_info->dma =
+ pci_map_page(adapter->pdev,
+ frag->page,
+ offset,
+ size,
+ PCI_DMA_TODEVICE);
+ buffer_info->time_stamp = jiffies;
+ buffer_info->next_to_watch = i;
+
+ len -= size;
+ offset += size;
+ count++;
+ if (unlikely(++i == tx_ring->count)) i = 0;
+ }
+ }
+
+ i = (i == 0) ? tx_ring->count - 1 : i - 1;
+ tx_ring->buffer_info[i].skb = skb;
+ tx_ring->buffer_info[first].next_to_watch = i;
+
+ return count;
+}
+
+static void e1000_tx_queue(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *tx_ring, int tx_flags,
+ int count)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct e1000_tx_desc *tx_desc = NULL;
+ struct e1000_buffer *buffer_info;
+ u32 txd_upper = 0, txd_lower = E1000_TXD_CMD_IFCS;
+ unsigned int i;
+
+ if (likely(tx_flags & E1000_TX_FLAGS_TSO)) {
+ txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D |
+ E1000_TXD_CMD_TSE;
+ txd_upper |= E1000_TXD_POPTS_TXSM << 8;
+
+ if (likely(tx_flags & E1000_TX_FLAGS_IPV4))
+ txd_upper |= E1000_TXD_POPTS_IXSM << 8;
+ }
+
+ if (likely(tx_flags & E1000_TX_FLAGS_CSUM)) {
+ txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D;
+ txd_upper |= E1000_TXD_POPTS_TXSM << 8;
+ }
+
+ if (unlikely(tx_flags & E1000_TX_FLAGS_VLAN)) {
+ txd_lower |= E1000_TXD_CMD_VLE;
+ txd_upper |= (tx_flags & E1000_TX_FLAGS_VLAN_MASK);
+ }
+
+ i = tx_ring->next_to_use;
+
+ while (count--) {
+ buffer_info = &tx_ring->buffer_info[i];
+ tx_desc = E1000_TX_DESC(*tx_ring, i);
+ tx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
+ tx_desc->lower.data =
+ cpu_to_le32(txd_lower | buffer_info->length);
+ tx_desc->upper.data = cpu_to_le32(txd_upper);
+ if (unlikely(++i == tx_ring->count)) i = 0;
+ }
+
+ tx_desc->lower.data |= cpu_to_le32(adapter->txd_cmd);
+
+ /* Force memory writes to complete before letting h/w
+ * know there are new descriptors to fetch. (Only
+ * applicable for weak-ordered memory model archs,
+ * such as IA-64). */
+ wmb();
+
+ tx_ring->next_to_use = i;
+ writel(i, hw->hw_addr + tx_ring->tdt);
+ /* we need this if more than one processor can write to our tail
+ * at a time, it syncronizes IO on IA64/Altix systems */
+ mmiowb();
+}
+
+/**
+ * 82547 workaround to avoid controller hang in half-duplex environment.
+ * The workaround is to avoid queuing a large packet that would span
+ * the internal Tx FIFO ring boundary by notifying the stack to resend
+ * the packet at a later time. This gives the Tx FIFO an opportunity to
+ * flush all packets. When that occurs, we reset the Tx FIFO pointers
+ * to the beginning of the Tx FIFO.
+ **/
+
+#define E1000_FIFO_HDR 0x10
+#define E1000_82547_PAD_LEN 0x3E0
+
+static int e1000_82547_fifo_workaround(struct e1000_adapter *adapter,
+ struct sk_buff *skb)
+{
+ u32 fifo_space = adapter->tx_fifo_size - adapter->tx_fifo_head;
+ u32 skb_fifo_len = skb->len + E1000_FIFO_HDR;
+
+ skb_fifo_len = ALIGN(skb_fifo_len, E1000_FIFO_HDR);
+
+ if (adapter->link_duplex != HALF_DUPLEX)
+ goto no_fifo_stall_required;
+
+ if (atomic_read(&adapter->tx_fifo_stall))
+ return 1;
+
+ if (skb_fifo_len >= (E1000_82547_PAD_LEN + fifo_space)) {
+ atomic_set(&adapter->tx_fifo_stall, 1);
+ return 1;
+ }
+
+no_fifo_stall_required:
+ adapter->tx_fifo_head += skb_fifo_len;
+ if (adapter->tx_fifo_head >= adapter->tx_fifo_size)
+ adapter->tx_fifo_head -= adapter->tx_fifo_size;
+ return 0;
+}
+
+#define MINIMUM_DHCP_PACKET_SIZE 282
+static int e1000_transfer_dhcp_info(struct e1000_adapter *adapter,
+ struct sk_buff *skb)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u16 length, offset;
+ if (vlan_tx_tag_present(skb)) {
+ if (!((vlan_tx_tag_get(skb) == hw->mng_cookie.vlan_id) &&
+ ( hw->mng_cookie.status &
+ E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT)) )
+ return 0;
+ }
+ if (skb->len > MINIMUM_DHCP_PACKET_SIZE) {
+ struct ethhdr *eth = (struct ethhdr *)skb->data;
+ if ((htons(ETH_P_IP) == eth->h_proto)) {
+ const struct iphdr *ip =
+ (struct iphdr *)((u8 *)skb->data+14);
+ if (IPPROTO_UDP == ip->protocol) {
+ struct udphdr *udp =
+ (struct udphdr *)((u8 *)ip +
+ (ip->ihl << 2));
+ if (ntohs(udp->dest) == 67) {
+ offset = (u8 *)udp + 8 - skb->data;
+ length = skb->len - offset;
+
+ return e1000_mng_write_dhcp_info(hw,
+ (u8 *)udp + 8,
+ length);
+ }
+ }
+ }
+ }
+ return 0;
+}
+
+static int __e1000_maybe_stop_tx(struct net_device *netdev, int size)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_tx_ring *tx_ring = adapter->tx_ring;
+
+ netif_stop_queue(netdev);
+ /* Herbert's original patch had:
+ * smp_mb__after_netif_stop_queue();
+ * but since that doesn't exist yet, just open code it. */
+ smp_mb();
+
+ /* We need to check again in a case another CPU has just
+ * made room available. */
+ if (likely(E1000_DESC_UNUSED(tx_ring) < size))
+ return -EBUSY;
+
+ /* A reprieve! */
+ netif_start_queue(netdev);
+ ++adapter->restart_queue;
+ return 0;
+}
+
+static int e1000_maybe_stop_tx(struct net_device *netdev,
+ struct e1000_tx_ring *tx_ring, int size)
+{
+ if (likely(E1000_DESC_UNUSED(tx_ring) >= size))
+ return 0;
+ return __e1000_maybe_stop_tx(netdev, size);
+}
+
+#define TXD_USE_COUNT(S, X) (((S) >> (X)) + 1 )
+static int e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ struct e1000_tx_ring *tx_ring;
+ unsigned int first, max_per_txd = E1000_MAX_DATA_PER_TXD;
+ unsigned int max_txd_pwr = E1000_MAX_TXD_PWR;
+ unsigned int tx_flags = 0;
+ unsigned int len = skb->len - skb->data_len;
+ unsigned long flags;
+ unsigned int nr_frags;
+ unsigned int mss;
+ int count = 0;
+ int tso;
+ unsigned int f;
+
+ /* This goes back to the question of how to logically map a tx queue
+ * to a flow. Right now, performance is impacted slightly negatively
+ * if using multiple tx queues. If the stack breaks away from a
+ * single qdisc implementation, we can look at this again. */
+ tx_ring = adapter->tx_ring;
+
+ if (unlikely(skb->len <= 0)) {
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
+ }
+
+ /* 82571 and newer doesn't need the workaround that limited descriptor
+ * length to 4kB */
+ if (hw->mac_type >= e1000_82571)
+ max_per_txd = 8192;
+
+ mss = skb_shinfo(skb)->gso_size;
+ /* The controller does a simple calculation to
+ * make sure there is enough room in the FIFO before
+ * initiating the DMA for each buffer. The calc is:
+ * 4 = ceil(buffer len/mss). To make sure we don't
+ * overrun the FIFO, adjust the max buffer len if mss
+ * drops. */
+ if (mss) {
+ u8 hdr_len;
+ max_per_txd = min(mss << 2, max_per_txd);
+ max_txd_pwr = fls(max_per_txd) - 1;
+
+ /* TSO Workaround for 82571/2/3 Controllers -- if skb->data
+ * points to just header, pull a few bytes of payload from
+ * frags into skb->data */
+ hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
+ if (skb->data_len && hdr_len == len) {
+ switch (hw->mac_type) {
+ unsigned int pull_size;
+ case e1000_82544:
+ /* Make sure we have room to chop off 4 bytes,
+ * and that the end alignment will work out to
+ * this hardware's requirements
+ * NOTE: this is a TSO only workaround
+ * if end byte alignment not correct move us
+ * into the next dword */
+ if ((unsigned long)(skb_tail_pointer(skb) - 1) & 4)
+ break;
+ /* fall through */
+ case e1000_82571:
+ case e1000_82572:
+ case e1000_82573:
+ case e1000_ich8lan:
+ pull_size = min((unsigned int)4, skb->data_len);
+ if (!__pskb_pull_tail(skb, pull_size)) {
+ DPRINTK(DRV, ERR,
+ "__pskb_pull_tail failed.\n");
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
+ }
+ len = skb->len - skb->data_len;
+ break;
+ default:
+ /* do nothing */
+ break;
+ }
+ }
+ }
+
+ /* reserve a descriptor for the offload context */
+ if ((mss) || (skb->ip_summed == CHECKSUM_PARTIAL))
+ count++;
+ count++;
+
+ /* Controller Erratum workaround */
+ if (!skb->data_len && tx_ring->last_tx_tso && !skb_is_gso(skb))
+ count++;
+
+ count += TXD_USE_COUNT(len, max_txd_pwr);
+
+ if (adapter->pcix_82544)
+ count++;
+
+ /* work-around for errata 10 and it applies to all controllers
+ * in PCI-X mode, so add one more descriptor to the count
+ */
+ if (unlikely((hw->bus_type == e1000_bus_type_pcix) &&
+ (len > 2015)))
+ count++;
+
+ nr_frags = skb_shinfo(skb)->nr_frags;
+ for (f = 0; f < nr_frags; f++)
+ count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size,
+ max_txd_pwr);
+ if (adapter->pcix_82544)
+ count += nr_frags;
+
+
+ if (hw->tx_pkt_filtering &&
+ (hw->mac_type == e1000_82573))
+ e1000_transfer_dhcp_info(adapter, skb);
+
+ if (!spin_trylock_irqsave(&tx_ring->tx_lock, flags))
+ /* Collision - tell upper layer to requeue */
+ return NETDEV_TX_LOCKED;
+
+ /* need: count + 2 desc gap to keep tail from touching
+ * head, otherwise try next time */
+ if (unlikely(e1000_maybe_stop_tx(netdev, tx_ring, count + 2))) {
+ spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
+ return NETDEV_TX_BUSY;
+ }
+
+ if (unlikely(hw->mac_type == e1000_82547)) {
+ if (unlikely(e1000_82547_fifo_workaround(adapter, skb))) {
+ netif_stop_queue(netdev);
+ mod_timer(&adapter->tx_fifo_stall_timer, jiffies + 1);
+ spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
+ return NETDEV_TX_BUSY;
+ }
+ }
+
+ if (unlikely(adapter->vlgrp && vlan_tx_tag_present(skb))) {
+ tx_flags |= E1000_TX_FLAGS_VLAN;
+ tx_flags |= (vlan_tx_tag_get(skb) << E1000_TX_FLAGS_VLAN_SHIFT);
+ }
+
+ first = tx_ring->next_to_use;
+
+ tso = e1000_tso(adapter, tx_ring, skb);
+ if (tso < 0) {
+ dev_kfree_skb_any(skb);
+ spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
+ return NETDEV_TX_OK;
+ }
+
+ if (likely(tso)) {
+ tx_ring->last_tx_tso = 1;
+ tx_flags |= E1000_TX_FLAGS_TSO;
+ } else if (likely(e1000_tx_csum(adapter, tx_ring, skb)))
+ tx_flags |= E1000_TX_FLAGS_CSUM;
+
+ /* Old method was to assume IPv4 packet by default if TSO was enabled.
+ * 82571 hardware supports TSO capabilities for IPv6 as well...
+ * no longer assume, we must. */
+ if (likely(skb->protocol == htons(ETH_P_IP)))
+ tx_flags |= E1000_TX_FLAGS_IPV4;
+
+ e1000_tx_queue(adapter, tx_ring, tx_flags,
+ e1000_tx_map(adapter, tx_ring, skb, first,
+ max_per_txd, nr_frags, mss));
+
+ netdev->trans_start = jiffies;
+
+ /* Make sure there is space in the ring for the next send. */
+ e1000_maybe_stop_tx(netdev, tx_ring, MAX_SKB_FRAGS + 2);
+
+ spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
+ return NETDEV_TX_OK;
+}
+
+/**
+ * e1000_tx_timeout - Respond to a Tx Hang
+ * @netdev: network interface device structure
+ **/
+
+static void e1000_tx_timeout(struct net_device *netdev)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ /* Do the reset outside of interrupt context */
+ adapter->tx_timeout_count++;
+ schedule_work(&adapter->reset_task);
+}
+
+static void e1000_reset_task(struct work_struct *work)
+{
+ struct e1000_adapter *adapter =
+ container_of(work, struct e1000_adapter, reset_task);
+
+ e1000_reinit_locked(adapter);
+}
+
+/**
+ * e1000_get_stats - Get System Network Statistics
+ * @netdev: network interface device structure
+ *
+ * Returns the address of the device statistics structure.
+ * The statistics are actually updated from the timer callback.
+ **/
+
+static struct net_device_stats *e1000_get_stats(struct net_device *netdev)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ /* only return the current stats */
+ return &adapter->net_stats;
+}
+
+/**
+ * e1000_change_mtu - Change the Maximum Transfer Unit
+ * @netdev: network interface device structure
+ * @new_mtu: new value for maximum frame size
+ *
+ * Returns 0 on success, negative on failure
+ **/
+
+static int e1000_change_mtu(struct net_device *netdev, int new_mtu)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ int max_frame = new_mtu + ENET_HEADER_SIZE + ETHERNET_FCS_SIZE;
+ u16 eeprom_data = 0;
+
+ if ((max_frame < MINIMUM_ETHERNET_FRAME_SIZE) ||
+ (max_frame > MAX_JUMBO_FRAME_SIZE)) {
+ DPRINTK(PROBE, ERR, "Invalid MTU setting\n");
+ return -EINVAL;
+ }
+
+ /* Adapter-specific max frame size limits. */
+ switch (hw->mac_type) {
+ case e1000_undefined ... e1000_82542_rev2_1:
+ case e1000_ich8lan:
+ if (max_frame > MAXIMUM_ETHERNET_FRAME_SIZE) {
+ DPRINTK(PROBE, ERR, "Jumbo Frames not supported.\n");
+ return -EINVAL;
+ }
+ break;
+ case e1000_82573:
+ /* Jumbo Frames not supported if:
+ * - this is not an 82573L device
+ * - ASPM is enabled in any way (0x1A bits 3:2) */
+ e1000_read_eeprom(hw, EEPROM_INIT_3GIO_3, 1,
+ &eeprom_data);
+ if ((hw->device_id != E1000_DEV_ID_82573L) ||
+ (eeprom_data & EEPROM_WORD1A_ASPM_MASK)) {
+ if (max_frame > MAXIMUM_ETHERNET_FRAME_SIZE) {
+ DPRINTK(PROBE, ERR,
+ "Jumbo Frames not supported.\n");
+ return -EINVAL;
+ }
+ break;
+ }
+ /* ERT will be enabled later to enable wire speed receives */
+
+ /* fall through to get support */
+ case e1000_82571:
+ case e1000_82572:
+ case e1000_80003es2lan:
+#define MAX_STD_JUMBO_FRAME_SIZE 9234
+ if (max_frame > MAX_STD_JUMBO_FRAME_SIZE) {
+ DPRINTK(PROBE, ERR, "MTU > 9216 not supported.\n");
+ return -EINVAL;
+ }
+ break;
+ default:
+ /* Capable of supporting up to MAX_JUMBO_FRAME_SIZE limit. */
+ break;
+ }
+
+ /* NOTE: netdev_alloc_skb reserves 16 bytes, and typically NET_IP_ALIGN
+ * means we reserve 2 more, this pushes us to allocate from the next
+ * larger slab size
+ * i.e. RXBUFFER_2048 --> size-4096 slab */
+
+ if (max_frame <= E1000_RXBUFFER_256)
+ adapter->rx_buffer_len = E1000_RXBUFFER_256;
+ else if (max_frame <= E1000_RXBUFFER_512)
+ adapter->rx_buffer_len = E1000_RXBUFFER_512;
+ else if (max_frame <= E1000_RXBUFFER_1024)
+ adapter->rx_buffer_len = E1000_RXBUFFER_1024;
+ else if (max_frame <= E1000_RXBUFFER_2048)
+ adapter->rx_buffer_len = E1000_RXBUFFER_2048;
+ else if (max_frame <= E1000_RXBUFFER_4096)
+ adapter->rx_buffer_len = E1000_RXBUFFER_4096;
+ else if (max_frame <= E1000_RXBUFFER_8192)
+ adapter->rx_buffer_len = E1000_RXBUFFER_8192;
+ else if (max_frame <= E1000_RXBUFFER_16384)
+ adapter->rx_buffer_len = E1000_RXBUFFER_16384;
+
+ /* adjust allocation if LPE protects us, and we aren't using SBP */
+ if (!hw->tbi_compatibility_on &&
+ ((max_frame == MAXIMUM_ETHERNET_FRAME_SIZE) ||
+ (max_frame == MAXIMUM_ETHERNET_VLAN_SIZE)))
+ adapter->rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE;
+
+ netdev->mtu = new_mtu;
+ hw->max_frame_size = max_frame;
+
+ if (netif_running(netdev))
+ e1000_reinit_locked(adapter);
+
+ return 0;
+}
+
+/**
+ * e1000_update_stats - Update the board statistics counters
+ * @adapter: board private structure
+ **/
+
+void e1000_update_stats(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct pci_dev *pdev = adapter->pdev;
+ unsigned long flags;
+ u16 phy_tmp;
+
+#define PHY_IDLE_ERROR_COUNT_MASK 0x00FF
+
+ /*
+ * Prevent stats update while adapter is being reset, or if the pci
+ * connection is down.
+ */
+ if (adapter->link_speed == 0)
+ return;
+ if (pci_channel_offline(pdev))
+ return;
+
+ spin_lock_irqsave(&adapter->stats_lock, flags);
+
+ /* these counters are modified from e1000_tbi_adjust_stats,
+ * called from the interrupt context, so they must only
+ * be written while holding adapter->stats_lock
+ */
+
+ adapter->stats.crcerrs += er32(CRCERRS);
+ adapter->stats.gprc += er32(GPRC);
+ adapter->stats.gorcl += er32(GORCL);
+ adapter->stats.gorch += er32(GORCH);
+ adapter->stats.bprc += er32(BPRC);
+ adapter->stats.mprc += er32(MPRC);
+ adapter->stats.roc += er32(ROC);
+
+ if (hw->mac_type != e1000_ich8lan) {
+ adapter->stats.prc64 += er32(PRC64);
+ adapter->stats.prc127 += er32(PRC127);
+ adapter->stats.prc255 += er32(PRC255);
+ adapter->stats.prc511 += er32(PRC511);
+ adapter->stats.prc1023 += er32(PRC1023);
+ adapter->stats.prc1522 += er32(PRC1522);
+ }
+
+ adapter->stats.symerrs += er32(SYMERRS);
+ adapter->stats.mpc += er32(MPC);
+ adapter->stats.scc += er32(SCC);
+ adapter->stats.ecol += er32(ECOL);
+ adapter->stats.mcc += er32(MCC);
+ adapter->stats.latecol += er32(LATECOL);
+ adapter->stats.dc += er32(DC);
+ adapter->stats.sec += er32(SEC);
+ adapter->stats.rlec += er32(RLEC);
+ adapter->stats.xonrxc += er32(XONRXC);
+ adapter->stats.xontxc += er32(XONTXC);
+ adapter->stats.xoffrxc += er32(XOFFRXC);
+ adapter->stats.xofftxc += er32(XOFFTXC);
+ adapter->stats.fcruc += er32(FCRUC);
+ adapter->stats.gptc += er32(GPTC);
+ adapter->stats.gotcl += er32(GOTCL);
+ adapter->stats.gotch += er32(GOTCH);
+ adapter->stats.rnbc += er32(RNBC);
+ adapter->stats.ruc += er32(RUC);
+ adapter->stats.rfc += er32(RFC);
+ adapter->stats.rjc += er32(RJC);
+ adapter->stats.torl += er32(TORL);
+ adapter->stats.torh += er32(TORH);
+ adapter->stats.totl += er32(TOTL);
+ adapter->stats.toth += er32(TOTH);
+ adapter->stats.tpr += er32(TPR);
+
+ if (hw->mac_type != e1000_ich8lan) {
+ adapter->stats.ptc64 += er32(PTC64);
+ adapter->stats.ptc127 += er32(PTC127);
+ adapter->stats.ptc255 += er32(PTC255);
+ adapter->stats.ptc511 += er32(PTC511);
+ adapter->stats.ptc1023 += er32(PTC1023);
+ adapter->stats.ptc1522 += er32(PTC1522);
+ }
+
+ adapter->stats.mptc += er32(MPTC);
+ adapter->stats.bptc += er32(BPTC);
+
+ /* used for adaptive IFS */
+
+ hw->tx_packet_delta = er32(TPT);
+ adapter->stats.tpt += hw->tx_packet_delta;
+ hw->collision_delta = er32(COLC);
+ adapter->stats.colc += hw->collision_delta;
+
+ if (hw->mac_type >= e1000_82543) {
+ adapter->stats.algnerrc += er32(ALGNERRC);
+ adapter->stats.rxerrc += er32(RXERRC);
+ adapter->stats.tncrs += er32(TNCRS);
+ adapter->stats.cexterr += er32(CEXTERR);
+ adapter->stats.tsctc += er32(TSCTC);
+ adapter->stats.tsctfc += er32(TSCTFC);
+ }
+ if (hw->mac_type > e1000_82547_rev_2) {
+ adapter->stats.iac += er32(IAC);
+ adapter->stats.icrxoc += er32(ICRXOC);
+
+ if (hw->mac_type != e1000_ich8lan) {
+ adapter->stats.icrxptc += er32(ICRXPTC);
+ adapter->stats.icrxatc += er32(ICRXATC);
+ adapter->stats.ictxptc += er32(ICTXPTC);
+ adapter->stats.ictxatc += er32(ICTXATC);
+ adapter->stats.ictxqec += er32(ICTXQEC);
+ adapter->stats.ictxqmtc += er32(ICTXQMTC);
+ adapter->stats.icrxdmtc += er32(ICRXDMTC);
+ }
+ }
+
+ /* Fill out the OS statistics structure */
+ adapter->net_stats.multicast = adapter->stats.mprc;
+ adapter->net_stats.collisions = adapter->stats.colc;
+
+ /* Rx Errors */
+
+ /* RLEC on some newer hardware can be incorrect so build
+ * our own version based on RUC and ROC */
+ adapter->net_stats.rx_errors = adapter->stats.rxerrc +
+ adapter->stats.crcerrs + adapter->stats.algnerrc +
+ adapter->stats.ruc + adapter->stats.roc +
+ adapter->stats.cexterr;
+ adapter->stats.rlerrc = adapter->stats.ruc + adapter->stats.roc;
+ adapter->net_stats.rx_length_errors = adapter->stats.rlerrc;
+ adapter->net_stats.rx_crc_errors = adapter->stats.crcerrs;
+ adapter->net_stats.rx_frame_errors = adapter->stats.algnerrc;
+ adapter->net_stats.rx_missed_errors = adapter->stats.mpc;
+
+ /* Tx Errors */
+ adapter->stats.txerrc = adapter->stats.ecol + adapter->stats.latecol;
+ adapter->net_stats.tx_errors = adapter->stats.txerrc;
+ adapter->net_stats.tx_aborted_errors = adapter->stats.ecol;
+ adapter->net_stats.tx_window_errors = adapter->stats.latecol;
+ adapter->net_stats.tx_carrier_errors = adapter->stats.tncrs;
+ if (hw->bad_tx_carr_stats_fd &&
+ adapter->link_duplex == FULL_DUPLEX) {
+ adapter->net_stats.tx_carrier_errors = 0;
+ adapter->stats.tncrs = 0;
+ }
+
+ /* Tx Dropped needs to be maintained elsewhere */
+
+ /* Phy Stats */
+ if (hw->media_type == e1000_media_type_copper) {
+ if ((adapter->link_speed == SPEED_1000) &&
+ (!e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_tmp))) {
+ phy_tmp &= PHY_IDLE_ERROR_COUNT_MASK;
+ adapter->phy_stats.idle_errors += phy_tmp;
+ }
+
+ if ((hw->mac_type <= e1000_82546) &&
+ (hw->phy_type == e1000_phy_m88) &&
+ !e1000_read_phy_reg(hw, M88E1000_RX_ERR_CNTR, &phy_tmp))
+ adapter->phy_stats.receive_errors += phy_tmp;
+ }
+
+ /* Management Stats */
+ if (hw->has_smbus) {
+ adapter->stats.mgptc += er32(MGTPTC);
+ adapter->stats.mgprc += er32(MGTPRC);
+ adapter->stats.mgpdc += er32(MGTPDC);
+ }
+
+ spin_unlock_irqrestore(&adapter->stats_lock, flags);
+}
+
+/**
+ * e1000_intr_msi - Interrupt Handler
+ * @irq: interrupt number
+ * @data: pointer to a network interface device structure
+ **/
+
+static irqreturn_t e1000_intr_msi(int irq, void *data)
+{
+ struct net_device *netdev = data;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u32 icr = er32(ICR);
+
+ /* in NAPI mode read ICR disables interrupts using IAM */
+
+ if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) {
+ hw->get_link_status = 1;
+ /* 80003ES2LAN workaround-- For packet buffer work-around on
+ * link down event; disable receives here in the ISR and reset
+ * adapter in watchdog */
+ if (netif_carrier_ok(netdev) &&
+ (hw->mac_type == e1000_80003es2lan)) {
+ /* disable receives */
+ u32 rctl = er32(RCTL);
+ ew32(RCTL, rctl & ~E1000_RCTL_EN);
+ }
+ /* guard against interrupt when we're going down */
+ if (!test_bit(__E1000_DOWN, &adapter->flags))
+ mod_timer(&adapter->watchdog_timer, jiffies + 1);
+ }
+
+ if (likely(netif_rx_schedule_prep(&adapter->napi))) {
+ adapter->total_tx_bytes = 0;
+ adapter->total_tx_packets = 0;
+ adapter->total_rx_bytes = 0;
+ adapter->total_rx_packets = 0;
+ __netif_rx_schedule(&adapter->napi);
+ } else
+ e1000_irq_enable(adapter);
+
+ return IRQ_HANDLED;
+}
+
+/**
+ * e1000_intr - Interrupt Handler
+ * @irq: interrupt number
+ * @data: pointer to a network interface device structure
+ **/
+
+static irqreturn_t e1000_intr(int irq, void *data)
+{
+ struct net_device *netdev = data;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u32 rctl, icr = er32(ICR);
+
+ if (unlikely((!icr) || test_bit(__E1000_RESETTING, &adapter->flags)))
+ return IRQ_NONE; /* Not our interrupt */
+
+ /* IMS will not auto-mask if INT_ASSERTED is not set, and if it is
+ * not set, then the adapter didn't send an interrupt */
+ if (unlikely(hw->mac_type >= e1000_82571 &&
+ !(icr & E1000_ICR_INT_ASSERTED)))
+ return IRQ_NONE;
+
+ /* Interrupt Auto-Mask...upon reading ICR, interrupts are masked. No
+ * need for the IMC write */
+
+ if (unlikely(icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC))) {
+ hw->get_link_status = 1;
+ /* 80003ES2LAN workaround--
+ * For packet buffer work-around on link down event;
+ * disable receives here in the ISR and
+ * reset adapter in watchdog
+ */
+ if (netif_carrier_ok(netdev) &&
+ (hw->mac_type == e1000_80003es2lan)) {
+ /* disable receives */
+ rctl = er32(RCTL);
+ ew32(RCTL, rctl & ~E1000_RCTL_EN);
+ }
+ /* guard against interrupt when we're going down */
+ if (!test_bit(__E1000_DOWN, &adapter->flags))
+ mod_timer(&adapter->watchdog_timer, jiffies + 1);
+ }
+
+ if (unlikely(hw->mac_type < e1000_82571)) {
+ /* disable interrupts, without the synchronize_irq bit */
+ ew32(IMC, ~0);
+ E1000_WRITE_FLUSH();
+ }
+ if (likely(netif_rx_schedule_prep(&adapter->napi))) {
+ adapter->total_tx_bytes = 0;
+ adapter->total_tx_packets = 0;
+ adapter->total_rx_bytes = 0;
+ adapter->total_rx_packets = 0;
+ __netif_rx_schedule(&adapter->napi);
+ } else
+ /* this really should not happen! if it does it is basically a
+ * bug, but not a hard error, so enable ints and continue */
+ e1000_irq_enable(adapter);
+
+ return IRQ_HANDLED;
+}
+
+/**
+ * e1000_clean - NAPI Rx polling callback
+ * @adapter: board private structure
+ **/
+static int e1000_clean(struct napi_struct *napi, int budget)
+{
+ struct e1000_adapter *adapter = container_of(napi, struct e1000_adapter, napi);
+ struct net_device *poll_dev = adapter->netdev;
+ int tx_cleaned = 0, work_done = 0;
+
+ adapter = netdev_priv(poll_dev);
+
+ /* e1000_clean is called per-cpu. This lock protects
+ * tx_ring[0] from being cleaned by multiple cpus
+ * simultaneously. A failure obtaining the lock means
+ * tx_ring[0] is currently being cleaned anyway. */
+ if (spin_trylock(&adapter->tx_queue_lock)) {
+ tx_cleaned = e1000_clean_tx_irq(adapter,
+ &adapter->tx_ring[0]);
+ spin_unlock(&adapter->tx_queue_lock);
+ }
+
+ adapter->clean_rx(adapter, &adapter->rx_ring[0],
+ &work_done, budget);
+
+ if (tx_cleaned)
+ work_done = budget;
+
+ /* If budget not fully consumed, exit the polling mode */
+ if (work_done < budget) {
+ if (likely(adapter->itr_setting & 3))
+ e1000_set_itr(adapter);
+ netif_rx_complete(napi);
+ e1000_irq_enable(adapter);
+ }
+
+ return work_done;
+}
+
+/**
+ * e1000_clean_tx_irq - Reclaim resources after transmit completes
+ * @adapter: board private structure
+ **/
+static bool e1000_clean_tx_irq(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *tx_ring)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct net_device *netdev = adapter->netdev;
+ struct e1000_tx_desc *tx_desc, *eop_desc;
+ struct e1000_buffer *buffer_info;
+ unsigned int i, eop;
+ unsigned int count = 0;
+ bool cleaned = false;
+ unsigned int total_tx_bytes=0, total_tx_packets=0;
+
+ i = tx_ring->next_to_clean;
+ eop = tx_ring->buffer_info[i].next_to_watch;
+ eop_desc = E1000_TX_DESC(*tx_ring, eop);
+
+ while (eop_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) {
+ for (cleaned = false; !cleaned; ) {
+ tx_desc = E1000_TX_DESC(*tx_ring, i);
+ buffer_info = &tx_ring->buffer_info[i];
+ cleaned = (i == eop);
+
+ if (cleaned) {
+ struct sk_buff *skb = buffer_info->skb;
+ unsigned int segs, bytecount;
+ segs = skb_shinfo(skb)->gso_segs ?: 1;
+ /* multiply data chunks by size of headers */
+ bytecount = ((segs - 1) * skb_headlen(skb)) +
+ skb->len;
+ total_tx_packets += segs;
+ total_tx_bytes += bytecount;
+ }
+ e1000_unmap_and_free_tx_resource(adapter, buffer_info);
+ tx_desc->upper.data = 0;
+
+ if (unlikely(++i == tx_ring->count)) i = 0;
+ }
+
+ eop = tx_ring->buffer_info[i].next_to_watch;
+ eop_desc = E1000_TX_DESC(*tx_ring, eop);
+#define E1000_TX_WEIGHT 64
+ /* weight of a sort for tx, to avoid endless transmit cleanup */
+ if (count++ == E1000_TX_WEIGHT)
+ break;
+ }
+
+ tx_ring->next_to_clean = i;
+
+#define TX_WAKE_THRESHOLD 32
+ if (unlikely(cleaned && netif_carrier_ok(netdev) &&
+ E1000_DESC_UNUSED(tx_ring) >= TX_WAKE_THRESHOLD)) {
+ /* Make sure that anybody stopping the queue after this
+ * sees the new next_to_clean.
+ */
+ smp_mb();
+ if (netif_queue_stopped(netdev)) {
+ netif_wake_queue(netdev);
+ ++adapter->restart_queue;
+ }
+ }
+
+ if (adapter->detect_tx_hung) {
+ /* Detect a transmit hang in hardware, this serializes the
+ * check with the clearing of time_stamp and movement of i */
+ adapter->detect_tx_hung = false;
+ if (tx_ring->buffer_info[eop].dma &&
+ time_after(jiffies, tx_ring->buffer_info[eop].time_stamp +
+ (adapter->tx_timeout_factor * HZ))
+ && !(er32(STATUS) & E1000_STATUS_TXOFF)) {
+
+ /* detected Tx unit hang */
+ DPRINTK(DRV, ERR, "Detected Tx Unit Hang\n"
+ " Tx Queue <%lu>\n"
+ " TDH <%x>\n"
+ " TDT <%x>\n"
+ " next_to_use <%x>\n"
+ " next_to_clean <%x>\n"
+ "buffer_info[next_to_clean]\n"
+ " time_stamp <%lx>\n"
+ " next_to_watch <%x>\n"
+ " jiffies <%lx>\n"
+ " next_to_watch.status <%x>\n",
+ (unsigned long)((tx_ring - adapter->tx_ring) /
+ sizeof(struct e1000_tx_ring)),
+ readl(hw->hw_addr + tx_ring->tdh),
+ readl(hw->hw_addr + tx_ring->tdt),
+ tx_ring->next_to_use,
+ tx_ring->next_to_clean,
+ tx_ring->buffer_info[eop].time_stamp,
+ eop,
+ jiffies,
+ eop_desc->upper.fields.status);
+ netif_stop_queue(netdev);
+ }
+ }
+ adapter->total_tx_bytes += total_tx_bytes;
+ adapter->total_tx_packets += total_tx_packets;
+ adapter->net_stats.tx_bytes += total_tx_bytes;
+ adapter->net_stats.tx_packets += total_tx_packets;
+ return cleaned;
+}
+
+/**
+ * e1000_rx_checksum - Receive Checksum Offload for 82543
+ * @adapter: board private structure
+ * @status_err: receive descriptor status and error fields
+ * @csum: receive descriptor csum field
+ * @sk_buff: socket buffer with received data
+ **/
+
+static void e1000_rx_checksum(struct e1000_adapter *adapter, u32 status_err,
+ u32 csum, struct sk_buff *skb)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u16 status = (u16)status_err;
+ u8 errors = (u8)(status_err >> 24);
+ skb->ip_summed = CHECKSUM_NONE;
+
+ /* 82543 or newer only */
+ if (unlikely(hw->mac_type < e1000_82543)) return;
+ /* Ignore Checksum bit is set */
+ if (unlikely(status & E1000_RXD_STAT_IXSM)) return;
+ /* TCP/UDP checksum error bit is set */
+ if (unlikely(errors & E1000_RXD_ERR_TCPE)) {
+ /* let the stack verify checksum errors */
+ adapter->hw_csum_err++;
+ return;
+ }
+ /* TCP/UDP Checksum has not been calculated */
+ if (hw->mac_type <= e1000_82547_rev_2) {
+ if (!(status & E1000_RXD_STAT_TCPCS))
+ return;
+ } else {
+ if (!(status & (E1000_RXD_STAT_TCPCS | E1000_RXD_STAT_UDPCS)))
+ return;
+ }
+ /* It must be a TCP or UDP packet with a valid checksum */
+ if (likely(status & E1000_RXD_STAT_TCPCS)) {
+ /* TCP checksum is good */
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ } else if (hw->mac_type > e1000_82547_rev_2) {
+ /* IP fragment with UDP payload */
+ /* Hardware complements the payload checksum, so we undo it
+ * and then put the value in host order for further stack use.
+ */
+ __sum16 sum = (__force __sum16)htons(csum);
+ skb->csum = csum_unfold(~sum);
+ skb->ip_summed = CHECKSUM_COMPLETE;
+ }
+ adapter->hw_csum_good++;
+}
+
+/**
+ * e1000_clean_rx_irq - Send received data up the network stack; legacy
+ * @adapter: board private structure
+ **/
+static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring,
+ int *work_done, int work_to_do)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct net_device *netdev = adapter->netdev;
+ struct pci_dev *pdev = adapter->pdev;
+ struct e1000_rx_desc *rx_desc, *next_rxd;
+ struct e1000_buffer *buffer_info, *next_buffer;
+ unsigned long flags;
+ u32 length;
+ u8 last_byte;
+ unsigned int i;
+ int cleaned_count = 0;
+ bool cleaned = false;
+ unsigned int total_rx_bytes=0, total_rx_packets=0;
+
+ i = rx_ring->next_to_clean;
+ rx_desc = E1000_RX_DESC(*rx_ring, i);
+ buffer_info = &rx_ring->buffer_info[i];
+
+ while (rx_desc->status & E1000_RXD_STAT_DD) {
+ struct sk_buff *skb;
+ u8 status;
+
+ if (*work_done >= work_to_do)
+ break;
+ (*work_done)++;
+
+ status = rx_desc->status;
+ skb = buffer_info->skb;
+ buffer_info->skb = NULL;
+
+ prefetch(skb->data - NET_IP_ALIGN);
+
+ if (++i == rx_ring->count) i = 0;
+ next_rxd = E1000_RX_DESC(*rx_ring, i);
+ prefetch(next_rxd);
+
+ next_buffer = &rx_ring->buffer_info[i];
+
+ cleaned = true;
+ cleaned_count++;
+ pci_unmap_single(pdev,
+ buffer_info->dma,
+ buffer_info->length,
+ PCI_DMA_FROMDEVICE);
+
+ length = le16_to_cpu(rx_desc->length);
+
+ if (unlikely(!(status & E1000_RXD_STAT_EOP))) {
+ /* All receives must fit into a single buffer */
+ E1000_DBG("%s: Receive packet consumed multiple"
+ " buffers\n", netdev->name);
+ /* recycle */
+ buffer_info->skb = skb;
+ goto next_desc;
+ }
+
+ if (unlikely(rx_desc->errors & E1000_RXD_ERR_FRAME_ERR_MASK)) {
+ last_byte = *(skb->data + length - 1);
+ if (TBI_ACCEPT(hw, status, rx_desc->errors, length,
+ last_byte)) {
+ spin_lock_irqsave(&adapter->stats_lock, flags);
+ e1000_tbi_adjust_stats(hw, &adapter->stats,
+ length, skb->data);
+ spin_unlock_irqrestore(&adapter->stats_lock,
+ flags);
+ length--;
+ } else {
+ /* recycle */
+ buffer_info->skb = skb;
+ goto next_desc;
+ }
+ }
+
+ /* adjust length to remove Ethernet CRC, this must be
+ * done after the TBI_ACCEPT workaround above */
+ length -= 4;
+
+ /* probably a little skewed due to removing CRC */
+ total_rx_bytes += length;
+ total_rx_packets++;
+
+ /* code added for copybreak, this should improve
+ * performance for small packets with large amounts
+ * of reassembly being done in the stack */
+ if (length < copybreak) {
+ struct sk_buff *new_skb =
+ netdev_alloc_skb(netdev, length + NET_IP_ALIGN);
+ if (new_skb) {
+ skb_reserve(new_skb, NET_IP_ALIGN);
+ skb_copy_to_linear_data_offset(new_skb,
+ -NET_IP_ALIGN,
+ (skb->data -
+ NET_IP_ALIGN),
+ (length +
+ NET_IP_ALIGN));
+ /* save the skb in buffer_info as good */
+ buffer_info->skb = skb;
+ skb = new_skb;
+ }
+ /* else just continue with the old one */
+ }
+ /* end copybreak code */
+ skb_put(skb, length);
+
+ /* Receive Checksum Offload */
+ e1000_rx_checksum(adapter,
+ (u32)(status) |
+ ((u32)(rx_desc->errors) << 24),
+ le16_to_cpu(rx_desc->csum), skb);
+
+ skb->protocol = eth_type_trans(skb, netdev);
+
+ if (unlikely(adapter->vlgrp &&
+ (status & E1000_RXD_STAT_VP))) {
+ vlan_hwaccel_receive_skb(skb, adapter->vlgrp,
+ le16_to_cpu(rx_desc->special));
+ } else {
+ netif_receive_skb(skb);
+ }
+
+next_desc:
+ rx_desc->status = 0;
+
+ /* return some buffers to hardware, one at a time is too slow */
+ if (unlikely(cleaned_count >= E1000_RX_BUFFER_WRITE)) {
+ adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count);
+ cleaned_count = 0;
+ }
+
+ /* use prefetched values */
+ rx_desc = next_rxd;
+ buffer_info = next_buffer;
+ }
+ rx_ring->next_to_clean = i;
+
+ cleaned_count = E1000_DESC_UNUSED(rx_ring);
+ if (cleaned_count)
+ adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count);
+
+ adapter->total_rx_packets += total_rx_packets;
+ adapter->total_rx_bytes += total_rx_bytes;
+ adapter->net_stats.rx_bytes += total_rx_bytes;
+ adapter->net_stats.rx_packets += total_rx_packets;
+ return cleaned;
+}
+
+/**
+ * e1000_alloc_rx_buffers - Replace used receive buffers; legacy & extended
+ * @adapter: address of board private structure
+ **/
+
+static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring,
+ int cleaned_count)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct net_device *netdev = adapter->netdev;
+ struct pci_dev *pdev = adapter->pdev;
+ struct e1000_rx_desc *rx_desc;
+ struct e1000_buffer *buffer_info;
+ struct sk_buff *skb;
+ unsigned int i;
+ unsigned int bufsz = adapter->rx_buffer_len + NET_IP_ALIGN;
+
+ i = rx_ring->next_to_use;
+ buffer_info = &rx_ring->buffer_info[i];
+
+ while (cleaned_count--) {
+ skb = buffer_info->skb;
+ if (skb) {
+ skb_trim(skb, 0);
+ goto map_skb;
+ }
+
+ skb = netdev_alloc_skb(netdev, bufsz);
+ if (unlikely(!skb)) {
+ /* Better luck next round */
+ adapter->alloc_rx_buff_failed++;
+ break;
+ }
+
+ /* Fix for errata 23, can't cross 64kB boundary */
+ if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) {
+ struct sk_buff *oldskb = skb;
+ DPRINTK(RX_ERR, ERR, "skb align check failed: %u bytes "
+ "at %p\n", bufsz, skb->data);
+ /* Try again, without freeing the previous */
+ skb = netdev_alloc_skb(netdev, bufsz);
+ /* Failed allocation, critical failure */
+ if (!skb) {
+ dev_kfree_skb(oldskb);
+ break;
+ }
+
+ if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) {
+ /* give up */
+ dev_kfree_skb(skb);
+ dev_kfree_skb(oldskb);
+ break; /* while !buffer_info->skb */
+ }
+
+ /* Use new allocation */
+ dev_kfree_skb(oldskb);
+ }
+ /* Make buffer alignment 2 beyond a 16 byte boundary
+ * this will result in a 16 byte aligned IP header after
+ * the 14 byte MAC header is removed
+ */
+ skb_reserve(skb, NET_IP_ALIGN);
+
+ buffer_info->skb = skb;
+ buffer_info->length = adapter->rx_buffer_len;
+map_skb:
+ buffer_info->dma = pci_map_single(pdev,
+ skb->data,
+ adapter->rx_buffer_len,
+ PCI_DMA_FROMDEVICE);
+
+ /* Fix for errata 23, can't cross 64kB boundary */
+ if (!e1000_check_64k_bound(adapter,
+ (void *)(unsigned long)buffer_info->dma,
+ adapter->rx_buffer_len)) {
+ DPRINTK(RX_ERR, ERR,
+ "dma align check failed: %u bytes at %p\n",
+ adapter->rx_buffer_len,
+ (void *)(unsigned long)buffer_info->dma);
+ dev_kfree_skb(skb);
+ buffer_info->skb = NULL;
+
+ pci_unmap_single(pdev, buffer_info->dma,
+ adapter->rx_buffer_len,
+ PCI_DMA_FROMDEVICE);
+
+ break; /* while !buffer_info->skb */
+ }
+ rx_desc = E1000_RX_DESC(*rx_ring, i);
+ rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
+
+ if (unlikely(++i == rx_ring->count))
+ i = 0;
+ buffer_info = &rx_ring->buffer_info[i];
+ }
+
+ if (likely(rx_ring->next_to_use != i)) {
+ rx_ring->next_to_use = i;
+ if (unlikely(i-- == 0))
+ i = (rx_ring->count - 1);
+
+ /* Force memory writes to complete before letting h/w
+ * know there are new descriptors to fetch. (Only
+ * applicable for weak-ordered memory model archs,
+ * such as IA-64). */
+ wmb();
+ writel(i, hw->hw_addr + rx_ring->rdt);
+ }
+}
+
+/**
+ * e1000_smartspeed - Workaround for SmartSpeed on 82541 and 82547 controllers.
+ * @adapter:
+ **/
+
+static void e1000_smartspeed(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u16 phy_status;
+ u16 phy_ctrl;
+
+ if ((hw->phy_type != e1000_phy_igp) || !hw->autoneg ||
+ !(hw->autoneg_advertised & ADVERTISE_1000_FULL))
+ return;
+
+ if (adapter->smartspeed == 0) {
+ /* If Master/Slave config fault is asserted twice,
+ * we assume back-to-back */
+ e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_status);
+ if (!(phy_status & SR_1000T_MS_CONFIG_FAULT)) return;
+ e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_status);
+ if (!(phy_status & SR_1000T_MS_CONFIG_FAULT)) return;
+ e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_ctrl);
+ if (phy_ctrl & CR_1000T_MS_ENABLE) {
+ phy_ctrl &= ~CR_1000T_MS_ENABLE;
+ e1000_write_phy_reg(hw, PHY_1000T_CTRL,
+ phy_ctrl);
+ adapter->smartspeed++;
+ if (!e1000_phy_setup_autoneg(hw) &&
+ !e1000_read_phy_reg(hw, PHY_CTRL,
+ &phy_ctrl)) {
+ phy_ctrl |= (MII_CR_AUTO_NEG_EN |
+ MII_CR_RESTART_AUTO_NEG);
+ e1000_write_phy_reg(hw, PHY_CTRL,
+ phy_ctrl);
+ }
+ }
+ return;
+ } else if (adapter->smartspeed == E1000_SMARTSPEED_DOWNSHIFT) {
+ /* If still no link, perhaps using 2/3 pair cable */
+ e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_ctrl);
+ phy_ctrl |= CR_1000T_MS_ENABLE;
+ e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_ctrl);
+ if (!e1000_phy_setup_autoneg(hw) &&
+ !e1000_read_phy_reg(hw, PHY_CTRL, &phy_ctrl)) {
+ phy_ctrl |= (MII_CR_AUTO_NEG_EN |
+ MII_CR_RESTART_AUTO_NEG);
+ e1000_write_phy_reg(hw, PHY_CTRL, phy_ctrl);
+ }
+ }
+ /* Restart process after E1000_SMARTSPEED_MAX iterations */
+ if (adapter->smartspeed++ == E1000_SMARTSPEED_MAX)
+ adapter->smartspeed = 0;
+}
+
+/**
+ * e1000_ioctl -
+ * @netdev:
+ * @ifreq:
+ * @cmd:
+ **/
+
+static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
+{
+ switch (cmd) {
+ case SIOCGMIIPHY:
+ case SIOCGMIIREG:
+ case SIOCSMIIREG:
+ return e1000_mii_ioctl(netdev, ifr, cmd);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+/**
+ * e1000_mii_ioctl -
+ * @netdev:
+ * @ifreq:
+ * @cmd:
+ **/
+
+static int e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr,
+ int cmd)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ struct mii_ioctl_data *data = if_mii(ifr);
+ int retval;
+ u16 mii_reg;
+ u16 spddplx;
+ unsigned long flags;
+
+ if (hw->media_type != e1000_media_type_copper)
+ return -EOPNOTSUPP;
+
+ switch (cmd) {
+ case SIOCGMIIPHY:
+ data->phy_id = hw->phy_addr;
+ break;
+ case SIOCGMIIREG:
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+ spin_lock_irqsave(&adapter->stats_lock, flags);
+ if (e1000_read_phy_reg(hw, data->reg_num & 0x1F,
+ &data->val_out)) {
+ spin_unlock_irqrestore(&adapter->stats_lock, flags);
+ return -EIO;
+ }
+ spin_unlock_irqrestore(&adapter->stats_lock, flags);
+ break;
+ case SIOCSMIIREG:
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+ if (data->reg_num & ~(0x1F))
+ return -EFAULT;
+ mii_reg = data->val_in;
+ spin_lock_irqsave(&adapter->stats_lock, flags);
+ if (e1000_write_phy_reg(hw, data->reg_num,
+ mii_reg)) {
+ spin_unlock_irqrestore(&adapter->stats_lock, flags);
+ return -EIO;
+ }
+ spin_unlock_irqrestore(&adapter->stats_lock, flags);
+ if (hw->media_type == e1000_media_type_copper) {
+ switch (data->reg_num) {
+ case PHY_CTRL:
+ if (mii_reg & MII_CR_POWER_DOWN)
+ break;
+ if (mii_reg & MII_CR_AUTO_NEG_EN) {
+ hw->autoneg = 1;
+ hw->autoneg_advertised = 0x2F;
+ } else {
+ if (mii_reg & 0x40)
+ spddplx = SPEED_1000;
+ else if (mii_reg & 0x2000)
+ spddplx = SPEED_100;
+ else
+ spddplx = SPEED_10;
+ spddplx += (mii_reg & 0x100)
+ ? DUPLEX_FULL :
+ DUPLEX_HALF;
+ retval = e1000_set_spd_dplx(adapter,
+ spddplx);
+ if (retval)
+ return retval;
+ }
+ if (netif_running(adapter->netdev))
+ e1000_reinit_locked(adapter);
+ else
+ e1000_reset(adapter);
+ break;
+ case M88E1000_PHY_SPEC_CTRL:
+ case M88E1000_EXT_PHY_SPEC_CTRL:
+ if (e1000_phy_reset(hw))
+ return -EIO;
+ break;
+ }
+ } else {
+ switch (data->reg_num) {
+ case PHY_CTRL:
+ if (mii_reg & MII_CR_POWER_DOWN)
+ break;
+ if (netif_running(adapter->netdev))
+ e1000_reinit_locked(adapter);
+ else
+ e1000_reset(adapter);
+ break;
+ }
+ }
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+ return E1000_SUCCESS;
+}
+
+void e1000_pci_set_mwi(struct e1000_hw *hw)
+{
+ struct e1000_adapter *adapter = hw->back;
+ int ret_val = pci_set_mwi(adapter->pdev);
+
+ if (ret_val)
+ DPRINTK(PROBE, ERR, "Error in setting MWI\n");
+}
+
+void e1000_pci_clear_mwi(struct e1000_hw *hw)
+{
+ struct e1000_adapter *adapter = hw->back;
+
+ pci_clear_mwi(adapter->pdev);
+}
+
+int e1000_pcix_get_mmrbc(struct e1000_hw *hw)
+{
+ struct e1000_adapter *adapter = hw->back;
+ return pcix_get_mmrbc(adapter->pdev);
+}
+
+void e1000_pcix_set_mmrbc(struct e1000_hw *hw, int mmrbc)
+{
+ struct e1000_adapter *adapter = hw->back;
+ pcix_set_mmrbc(adapter->pdev, mmrbc);
+}
+
+s32 e1000_read_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value)
+{
+ struct e1000_adapter *adapter = hw->back;
+ u16 cap_offset;
+
+ cap_offset = pci_find_capability(adapter->pdev, PCI_CAP_ID_EXP);
+ if (!cap_offset)
+ return -E1000_ERR_CONFIG;
+
+ pci_read_config_word(adapter->pdev, cap_offset + reg, value);
+
+ return E1000_SUCCESS;
+}
+
+void e1000_io_write(struct e1000_hw *hw, unsigned long port, u32 value)
+{
+ outl(value, port);
+}
+
+static void e1000_vlan_rx_register(struct net_device *netdev,
+ struct vlan_group *grp)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u32 ctrl, rctl;
+
+ if (!test_bit(__E1000_DOWN, &adapter->flags))
+ e1000_irq_disable(adapter);
+ adapter->vlgrp = grp;
+
+ if (grp) {
+ /* enable VLAN tag insert/strip */
+ ctrl = er32(CTRL);
+ ctrl |= E1000_CTRL_VME;
+ ew32(CTRL, ctrl);
+
+ if (adapter->hw.mac_type != e1000_ich8lan) {
+ /* enable VLAN receive filtering */
+ rctl = er32(RCTL);
+ rctl &= ~E1000_RCTL_CFIEN;
+ ew32(RCTL, rctl);
+ e1000_update_mng_vlan(adapter);
+ }
+ } else {
+ /* disable VLAN tag insert/strip */
+ ctrl = er32(CTRL);
+ ctrl &= ~E1000_CTRL_VME;
+ ew32(CTRL, ctrl);
+
+ if (adapter->hw.mac_type != e1000_ich8lan) {
+ if (adapter->mng_vlan_id !=
+ (u16)E1000_MNG_VLAN_NONE) {
+ e1000_vlan_rx_kill_vid(netdev,
+ adapter->mng_vlan_id);
+ adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
+ }
+ }
+ }
+
+ if (!test_bit(__E1000_DOWN, &adapter->flags))
+ e1000_irq_enable(adapter);
+}
+
+static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u32 vfta, index;
+
+ if ((hw->mng_cookie.status &
+ E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) &&
+ (vid == adapter->mng_vlan_id))
+ return;
+ /* add VID to filter table */
+ index = (vid >> 5) & 0x7F;
+ vfta = E1000_READ_REG_ARRAY(hw, VFTA, index);
+ vfta |= (1 << (vid & 0x1F));
+ e1000_write_vfta(hw, index, vfta);
+}
+
+static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u32 vfta, index;
+
+ if (!test_bit(__E1000_DOWN, &adapter->flags))
+ e1000_irq_disable(adapter);
+ vlan_group_set_device(adapter->vlgrp, vid, NULL);
+ if (!test_bit(__E1000_DOWN, &adapter->flags))
+ e1000_irq_enable(adapter);
+
+ if ((hw->mng_cookie.status &
+ E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) &&
+ (vid == adapter->mng_vlan_id)) {
+ /* release control to f/w */
+ e1000_release_hw_control(adapter);
+ return;
+ }
+
+ /* remove VID from filter table */
+ index = (vid >> 5) & 0x7F;
+ vfta = E1000_READ_REG_ARRAY(hw, VFTA, index);
+ vfta &= ~(1 << (vid & 0x1F));
+ e1000_write_vfta(hw, index, vfta);
+}
+
+static void e1000_restore_vlan(struct e1000_adapter *adapter)
+{
+ e1000_vlan_rx_register(adapter->netdev, adapter->vlgrp);
+
+ if (adapter->vlgrp) {
+ u16 vid;
+ for (vid = 0; vid < VLAN_GROUP_ARRAY_LEN; vid++) {
+ if (!vlan_group_get_device(adapter->vlgrp, vid))
+ continue;
+ e1000_vlan_rx_add_vid(adapter->netdev, vid);
+ }
+ }
+}
+
+int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx)
+{
+ struct e1000_hw *hw = &adapter->hw;
+
+ hw->autoneg = 0;
+
+ /* Fiber NICs only allow 1000 gbps Full duplex */
+ if ((hw->media_type == e1000_media_type_fiber) &&
+ spddplx != (SPEED_1000 + DUPLEX_FULL)) {
+ DPRINTK(PROBE, ERR, "Unsupported Speed/Duplex configuration\n");
+ return -EINVAL;
+ }
+
+ switch (spddplx) {
+ case SPEED_10 + DUPLEX_HALF:
+ hw->forced_speed_duplex = e1000_10_half;
+ break;
+ case SPEED_10 + DUPLEX_FULL:
+ hw->forced_speed_duplex = e1000_10_full;
+ break;
+ case SPEED_100 + DUPLEX_HALF:
+ hw->forced_speed_duplex = e1000_100_half;
+ break;
+ case SPEED_100 + DUPLEX_FULL:
+ hw->forced_speed_duplex = e1000_100_full;
+ break;
+ case SPEED_1000 + DUPLEX_FULL:
+ hw->autoneg = 1;
+ hw->autoneg_advertised = ADVERTISE_1000_FULL;
+ break;
+ case SPEED_1000 + DUPLEX_HALF: /* not supported */
+ default:
+ DPRINTK(PROBE, ERR, "Unsupported Speed/Duplex configuration\n");
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int e1000_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u32 ctrl, ctrl_ext, rctl, status;
+ u32 wufc = adapter->wol;
+#ifdef CONFIG_PM
+ int retval = 0;
+#endif
+
+ netif_device_detach(netdev);
+
+ if (netif_running(netdev)) {
+ WARN_ON(test_bit(__E1000_RESETTING, &adapter->flags));
+ e1000_down(adapter);
+ }
+
+#ifdef CONFIG_PM
+ retval = pci_save_state(pdev);
+ if (retval)
+ return retval;
+#endif
+
+ status = er32(STATUS);
+ if (status & E1000_STATUS_LU)
+ wufc &= ~E1000_WUFC_LNKC;
+
+ if (wufc) {
+ e1000_setup_rctl(adapter);
+ e1000_set_rx_mode(netdev);
+
+ /* turn on all-multi mode if wake on multicast is enabled */
+ if (wufc & E1000_WUFC_MC) {
+ rctl = er32(RCTL);
+ rctl |= E1000_RCTL_MPE;
+ ew32(RCTL, rctl);
+ }
+
+ if (hw->mac_type >= e1000_82540) {
+ ctrl = er32(CTRL);
+ /* advertise wake from D3Cold */
+ #define E1000_CTRL_ADVD3WUC 0x00100000
+ /* phy power management enable */
+ #define E1000_CTRL_EN_PHY_PWR_MGMT 0x00200000
+ ctrl |= E1000_CTRL_ADVD3WUC |
+ E1000_CTRL_EN_PHY_PWR_MGMT;
+ ew32(CTRL, ctrl);
+ }
+
+ if (hw->media_type == e1000_media_type_fiber ||
+ hw->media_type == e1000_media_type_internal_serdes) {
+ /* keep the laser running in D3 */
+ ctrl_ext = er32(CTRL_EXT);
+ ctrl_ext |= E1000_CTRL_EXT_SDP7_DATA;
+ ew32(CTRL_EXT, ctrl_ext);
+ }
+
+ /* Allow time for pending master requests to run */
+ e1000_disable_pciex_master(hw);
+
+ ew32(WUC, E1000_WUC_PME_EN);
+ ew32(WUFC, wufc);
+ pci_enable_wake(pdev, PCI_D3hot, 1);
+ pci_enable_wake(pdev, PCI_D3cold, 1);
+ } else {
+ ew32(WUC, 0);
+ ew32(WUFC, 0);
+ pci_enable_wake(pdev, PCI_D3hot, 0);
+ pci_enable_wake(pdev, PCI_D3cold, 0);
+ }
+
+ e1000_release_manageability(adapter);
+
+ /* make sure adapter isn't asleep if manageability is enabled */
+ if (adapter->en_mng_pt) {
+ pci_enable_wake(pdev, PCI_D3hot, 1);
+ pci_enable_wake(pdev, PCI_D3cold, 1);
+ }
+
+ if (hw->phy_type == e1000_phy_igp_3)
+ e1000_phy_powerdown_workaround(hw);
+
+ if (netif_running(netdev))
+ e1000_free_irq(adapter);
+
+ /* Release control of h/w to f/w. If f/w is AMT enabled, this
+ * would have already happened in close and is redundant. */
+ e1000_release_hw_control(adapter);
+
+ pci_disable_device(pdev);
+
+ pci_set_power_state(pdev, pci_choose_state(pdev, state));
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int e1000_resume(struct pci_dev *pdev)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u32 err;
+
+ pci_set_power_state(pdev, PCI_D0);
+ pci_restore_state(pdev);
+
+ if (adapter->need_ioport)
+ err = pci_enable_device(pdev);
+ else
+ err = pci_enable_device_mem(pdev);
+ if (err) {
+ printk(KERN_ERR "e1000: Cannot enable PCI device from suspend\n");
+ return err;
+ }
+ pci_set_master(pdev);
+
+ pci_enable_wake(pdev, PCI_D3hot, 0);
+ pci_enable_wake(pdev, PCI_D3cold, 0);
+
+ if (netif_running(netdev)) {
+ err = e1000_request_irq(adapter);
+ if (err)
+ return err;
+ }
+
+ e1000_power_up_phy(adapter);
+ e1000_reset(adapter);
+ ew32(WUS, ~0);
+
+ e1000_init_manageability(adapter);
+
+ if (netif_running(netdev))
+ e1000_up(adapter);
+
+ netif_device_attach(netdev);
+
+ /* If the controller is 82573 and f/w is AMT, do not set
+ * DRV_LOAD until the interface is up. For all other cases,
+ * let the f/w know that the h/w is now under the control
+ * of the driver. */
+ if (hw->mac_type != e1000_82573 ||
+ !e1000_check_mng_mode(hw))
+ e1000_get_hw_control(adapter);
+
+ return 0;
+}
+#endif
+
+static void e1000_shutdown(struct pci_dev *pdev)
+{
+ e1000_suspend(pdev, PMSG_SUSPEND);
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/*
+ * Polling 'interrupt' - used by things like netconsole to send skbs
+ * without having to re-enable interrupts. It's not called while
+ * the interrupt routine is executing.
+ */
+static void e1000_netpoll(struct net_device *netdev)
+{
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ disable_irq(adapter->pdev->irq);
+ e1000_intr(adapter->pdev->irq, netdev);
+ enable_irq(adapter->pdev->irq);
+}
+#endif
+
+/**
+ * e1000_io_error_detected - called when PCI error is detected
+ * @pdev: Pointer to PCI device
+ * @state: The current pci conneection state
+ *
+ * This function is called after a PCI bus error affecting
+ * this device has been detected.
+ */
+static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev,
+ pci_channel_state_t state)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ netif_device_detach(netdev);
+
+ if (netif_running(netdev))
+ e1000_down(adapter);
+ pci_disable_device(pdev);
+
+ /* Request a slot slot reset. */
+ return PCI_ERS_RESULT_NEED_RESET;
+}
+
+/**
+ * e1000_io_slot_reset - called after the pci bus has been reset.
+ * @pdev: Pointer to PCI device
+ *
+ * Restart the card from scratch, as if from a cold-boot. Implementation
+ * resembles the first-half of the e1000_resume routine.
+ */
+static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ int err;
+
+ if (adapter->need_ioport)
+ err = pci_enable_device(pdev);
+ else
+ err = pci_enable_device_mem(pdev);
+ if (err) {
+ printk(KERN_ERR "e1000: Cannot re-enable PCI device after reset.\n");
+ return PCI_ERS_RESULT_DISCONNECT;
+ }
+ pci_set_master(pdev);
+
+ pci_enable_wake(pdev, PCI_D3hot, 0);
+ pci_enable_wake(pdev, PCI_D3cold, 0);
+
+ e1000_reset(adapter);
+ ew32(WUS, ~0);
+
+ return PCI_ERS_RESULT_RECOVERED;
+}
+
+/**
+ * e1000_io_resume - called when traffic can start flowing again.
+ * @pdev: Pointer to PCI device
+ *
+ * This callback is called when the error recovery driver tells us that
+ * its OK to resume normal operation. Implementation resembles the
+ * second-half of the e1000_resume routine.
+ */
+static void e1000_io_resume(struct pci_dev *pdev)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+
+ e1000_init_manageability(adapter);
+
+ if (netif_running(netdev)) {
+ if (e1000_up(adapter)) {
+ printk("e1000: can't bring device back up after reset\n");
+ return;
+ }
+ }
+
+ netif_device_attach(netdev);
+
+ /* If the controller is 82573 and f/w is AMT, do not set
+ * DRV_LOAD until the interface is up. For all other cases,
+ * let the f/w know that the h/w is now under the control
+ * of the driver. */
+ if (hw->mac_type != e1000_82573 ||
+ !e1000_check_mng_mode(hw))
+ e1000_get_hw_control(adapter);
+
+}
+
+/* e1000_main.c */