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| Current File : //usr/src/sys/dev/e1000/e1000_82543.c |
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/*$FreeBSD: release/9.1.0/sys/dev/e1000/e1000_82543.c 238262 2012-07-08 20:35:56Z jfv $*/
/*
* 82543GC Gigabit Ethernet Controller (Fiber)
* 82543GC Gigabit Ethernet Controller (Copper)
* 82544EI Gigabit Ethernet Controller (Copper)
* 82544EI Gigabit Ethernet Controller (Fiber)
* 82544GC Gigabit Ethernet Controller (Copper)
* 82544GC Gigabit Ethernet Controller (LOM)
*/
#include "e1000_api.h"
static s32 e1000_init_phy_params_82543(struct e1000_hw *hw);
static s32 e1000_init_nvm_params_82543(struct e1000_hw *hw);
static s32 e1000_init_mac_params_82543(struct e1000_hw *hw);
static s32 e1000_read_phy_reg_82543(struct e1000_hw *hw, u32 offset,
u16 *data);
static s32 e1000_write_phy_reg_82543(struct e1000_hw *hw, u32 offset,
u16 data);
static s32 e1000_phy_force_speed_duplex_82543(struct e1000_hw *hw);
static s32 e1000_phy_hw_reset_82543(struct e1000_hw *hw);
static s32 e1000_reset_hw_82543(struct e1000_hw *hw);
static s32 e1000_init_hw_82543(struct e1000_hw *hw);
static s32 e1000_setup_link_82543(struct e1000_hw *hw);
static s32 e1000_setup_copper_link_82543(struct e1000_hw *hw);
static s32 e1000_setup_fiber_link_82543(struct e1000_hw *hw);
static s32 e1000_check_for_copper_link_82543(struct e1000_hw *hw);
static s32 e1000_check_for_fiber_link_82543(struct e1000_hw *hw);
static s32 e1000_led_on_82543(struct e1000_hw *hw);
static s32 e1000_led_off_82543(struct e1000_hw *hw);
static void e1000_write_vfta_82543(struct e1000_hw *hw, u32 offset,
u32 value);
static void e1000_clear_hw_cntrs_82543(struct e1000_hw *hw);
static s32 e1000_config_mac_to_phy_82543(struct e1000_hw *hw);
static bool e1000_init_phy_disabled_82543(struct e1000_hw *hw);
static void e1000_lower_mdi_clk_82543(struct e1000_hw *hw, u32 *ctrl);
static s32 e1000_polarity_reversal_workaround_82543(struct e1000_hw *hw);
static void e1000_raise_mdi_clk_82543(struct e1000_hw *hw, u32 *ctrl);
static u16 e1000_shift_in_mdi_bits_82543(struct e1000_hw *hw);
static void e1000_shift_out_mdi_bits_82543(struct e1000_hw *hw, u32 data,
u16 count);
static bool e1000_tbi_compatibility_enabled_82543(struct e1000_hw *hw);
static void e1000_set_tbi_sbp_82543(struct e1000_hw *hw, bool state);
static s32 e1000_read_mac_addr_82543(struct e1000_hw *hw);
/**
* e1000_init_phy_params_82543 - Init PHY func ptrs.
* @hw: pointer to the HW structure
**/
static s32 e1000_init_phy_params_82543(struct e1000_hw *hw)
{
struct e1000_phy_info *phy = &hw->phy;
s32 ret_val = E1000_SUCCESS;
DEBUGFUNC("e1000_init_phy_params_82543");
if (hw->phy.media_type != e1000_media_type_copper) {
phy->type = e1000_phy_none;
goto out;
} else {
phy->ops.power_up = e1000_power_up_phy_copper;
phy->ops.power_down = e1000_power_down_phy_copper;
}
phy->addr = 1;
phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
phy->reset_delay_us = 10000;
phy->type = e1000_phy_m88;
/* Function Pointers */
phy->ops.check_polarity = e1000_check_polarity_m88;
phy->ops.commit = e1000_phy_sw_reset_generic;
phy->ops.force_speed_duplex = e1000_phy_force_speed_duplex_82543;
phy->ops.get_cable_length = e1000_get_cable_length_m88;
phy->ops.get_cfg_done = e1000_get_cfg_done_generic;
phy->ops.read_reg = (hw->mac.type == e1000_82543)
? e1000_read_phy_reg_82543
: e1000_read_phy_reg_m88;
phy->ops.reset = (hw->mac.type == e1000_82543)
? e1000_phy_hw_reset_82543
: e1000_phy_hw_reset_generic;
phy->ops.write_reg = (hw->mac.type == e1000_82543)
? e1000_write_phy_reg_82543
: e1000_write_phy_reg_m88;
phy->ops.get_info = e1000_get_phy_info_m88;
/*
* The external PHY of the 82543 can be in a funky state.
* Resetting helps us read the PHY registers for acquiring
* the PHY ID.
*/
if (!e1000_init_phy_disabled_82543(hw)) {
ret_val = phy->ops.reset(hw);
if (ret_val) {
DEBUGOUT("Resetting PHY during init failed.\n");
goto out;
}
msec_delay(20);
}
ret_val = e1000_get_phy_id(hw);
if (ret_val)
goto out;
/* Verify phy id */
switch (hw->mac.type) {
case e1000_82543:
if (phy->id != M88E1000_E_PHY_ID) {
ret_val = -E1000_ERR_PHY;
goto out;
}
break;
case e1000_82544:
if (phy->id != M88E1000_I_PHY_ID) {
ret_val = -E1000_ERR_PHY;
goto out;
}
break;
default:
ret_val = -E1000_ERR_PHY;
goto out;
break;
}
out:
return ret_val;
}
/**
* e1000_init_nvm_params_82543 - Init NVM func ptrs.
* @hw: pointer to the HW structure
**/
static s32 e1000_init_nvm_params_82543(struct e1000_hw *hw)
{
struct e1000_nvm_info *nvm = &hw->nvm;
DEBUGFUNC("e1000_init_nvm_params_82543");
nvm->type = e1000_nvm_eeprom_microwire;
nvm->word_size = 64;
nvm->delay_usec = 50;
nvm->address_bits = 6;
nvm->opcode_bits = 3;
/* Function Pointers */
nvm->ops.read = e1000_read_nvm_microwire;
nvm->ops.update = e1000_update_nvm_checksum_generic;
nvm->ops.valid_led_default = e1000_valid_led_default_generic;
nvm->ops.validate = e1000_validate_nvm_checksum_generic;
nvm->ops.write = e1000_write_nvm_microwire;
return E1000_SUCCESS;
}
/**
* e1000_init_mac_params_82543 - Init MAC func ptrs.
* @hw: pointer to the HW structure
**/
static s32 e1000_init_mac_params_82543(struct e1000_hw *hw)
{
struct e1000_mac_info *mac = &hw->mac;
DEBUGFUNC("e1000_init_mac_params_82543");
/* Set media type */
switch (hw->device_id) {
case E1000_DEV_ID_82543GC_FIBER:
case E1000_DEV_ID_82544EI_FIBER:
hw->phy.media_type = e1000_media_type_fiber;
break;
default:
hw->phy.media_type = e1000_media_type_copper;
break;
}
/* Set mta register count */
mac->mta_reg_count = 128;
/* Set rar entry count */
mac->rar_entry_count = E1000_RAR_ENTRIES;
/* Function pointers */
/* bus type/speed/width */
mac->ops.get_bus_info = e1000_get_bus_info_pci_generic;
/* function id */
mac->ops.set_lan_id = e1000_set_lan_id_multi_port_pci;
/* reset */
mac->ops.reset_hw = e1000_reset_hw_82543;
/* hw initialization */
mac->ops.init_hw = e1000_init_hw_82543;
/* link setup */
mac->ops.setup_link = e1000_setup_link_82543;
/* physical interface setup */
mac->ops.setup_physical_interface =
(hw->phy.media_type == e1000_media_type_copper)
? e1000_setup_copper_link_82543
: e1000_setup_fiber_link_82543;
/* check for link */
mac->ops.check_for_link =
(hw->phy.media_type == e1000_media_type_copper)
? e1000_check_for_copper_link_82543
: e1000_check_for_fiber_link_82543;
/* link info */
mac->ops.get_link_up_info =
(hw->phy.media_type == e1000_media_type_copper)
? e1000_get_speed_and_duplex_copper_generic
: e1000_get_speed_and_duplex_fiber_serdes_generic;
/* multicast address update */
mac->ops.update_mc_addr_list = e1000_update_mc_addr_list_generic;
/* writing VFTA */
mac->ops.write_vfta = e1000_write_vfta_82543;
/* clearing VFTA */
mac->ops.clear_vfta = e1000_clear_vfta_generic;
/* read mac address */
mac->ops.read_mac_addr = e1000_read_mac_addr_82543;
/* turn on/off LED */
mac->ops.led_on = e1000_led_on_82543;
mac->ops.led_off = e1000_led_off_82543;
/* clear hardware counters */
mac->ops.clear_hw_cntrs = e1000_clear_hw_cntrs_82543;
/* Set tbi compatibility */
if ((hw->mac.type != e1000_82543) ||
(hw->phy.media_type == e1000_media_type_fiber))
e1000_set_tbi_compatibility_82543(hw, FALSE);
return E1000_SUCCESS;
}
/**
* e1000_init_function_pointers_82543 - Init func ptrs.
* @hw: pointer to the HW structure
*
* Called to initialize all function pointers and parameters.
**/
void e1000_init_function_pointers_82543(struct e1000_hw *hw)
{
DEBUGFUNC("e1000_init_function_pointers_82543");
hw->mac.ops.init_params = e1000_init_mac_params_82543;
hw->nvm.ops.init_params = e1000_init_nvm_params_82543;
hw->phy.ops.init_params = e1000_init_phy_params_82543;
}
/**
* e1000_tbi_compatibility_enabled_82543 - Returns TBI compat status
* @hw: pointer to the HW structure
*
* Returns the current status of 10-bit Interface (TBI) compatibility
* (enabled/disabled).
**/
static bool e1000_tbi_compatibility_enabled_82543(struct e1000_hw *hw)
{
struct e1000_dev_spec_82543 *dev_spec = &hw->dev_spec._82543;
bool state = FALSE;
DEBUGFUNC("e1000_tbi_compatibility_enabled_82543");
if (hw->mac.type != e1000_82543) {
DEBUGOUT("TBI compatibility workaround for 82543 only.\n");
goto out;
}
state = (dev_spec->tbi_compatibility & TBI_COMPAT_ENABLED)
? TRUE : FALSE;
out:
return state;
}
/**
* e1000_set_tbi_compatibility_82543 - Set TBI compatibility
* @hw: pointer to the HW structure
* @state: enable/disable TBI compatibility
*
* Enables or disabled 10-bit Interface (TBI) compatibility.
**/
void e1000_set_tbi_compatibility_82543(struct e1000_hw *hw, bool state)
{
struct e1000_dev_spec_82543 *dev_spec = &hw->dev_spec._82543;
DEBUGFUNC("e1000_set_tbi_compatibility_82543");
if (hw->mac.type != e1000_82543) {
DEBUGOUT("TBI compatibility workaround for 82543 only.\n");
goto out;
}
if (state)
dev_spec->tbi_compatibility |= TBI_COMPAT_ENABLED;
else
dev_spec->tbi_compatibility &= ~TBI_COMPAT_ENABLED;
out:
return;
}
/**
* e1000_tbi_sbp_enabled_82543 - Returns TBI SBP status
* @hw: pointer to the HW structure
*
* Returns the current status of 10-bit Interface (TBI) store bad packet (SBP)
* (enabled/disabled).
**/
bool e1000_tbi_sbp_enabled_82543(struct e1000_hw *hw)
{
struct e1000_dev_spec_82543 *dev_spec = &hw->dev_spec._82543;
bool state = FALSE;
DEBUGFUNC("e1000_tbi_sbp_enabled_82543");
if (hw->mac.type != e1000_82543) {
DEBUGOUT("TBI compatibility workaround for 82543 only.\n");
goto out;
}
state = (dev_spec->tbi_compatibility & TBI_SBP_ENABLED)
? TRUE : FALSE;
out:
return state;
}
/**
* e1000_set_tbi_sbp_82543 - Set TBI SBP
* @hw: pointer to the HW structure
* @state: enable/disable TBI store bad packet
*
* Enables or disabled 10-bit Interface (TBI) store bad packet (SBP).
**/
static void e1000_set_tbi_sbp_82543(struct e1000_hw *hw, bool state)
{
struct e1000_dev_spec_82543 *dev_spec = &hw->dev_spec._82543;
DEBUGFUNC("e1000_set_tbi_sbp_82543");
if (state && e1000_tbi_compatibility_enabled_82543(hw))
dev_spec->tbi_compatibility |= TBI_SBP_ENABLED;
else
dev_spec->tbi_compatibility &= ~TBI_SBP_ENABLED;
return;
}
/**
* e1000_init_phy_disabled_82543 - Returns init PHY status
* @hw: pointer to the HW structure
*
* Returns the current status of whether PHY initialization is disabled.
* True if PHY initialization is disabled else FALSE.
**/
static bool e1000_init_phy_disabled_82543(struct e1000_hw *hw)
{
struct e1000_dev_spec_82543 *dev_spec = &hw->dev_spec._82543;
bool ret_val;
DEBUGFUNC("e1000_init_phy_disabled_82543");
if (hw->mac.type != e1000_82543) {
ret_val = FALSE;
goto out;
}
ret_val = dev_spec->init_phy_disabled;
out:
return ret_val;
}
/**
* e1000_tbi_adjust_stats_82543 - Adjust stats when TBI enabled
* @hw: pointer to the HW structure
* @stats: Struct containing statistic register values
* @frame_len: The length of the frame in question
* @mac_addr: The Ethernet destination address of the frame in question
* @max_frame_size: The maximum frame size
*
* Adjusts the statistic counters when a frame is accepted by TBI_ACCEPT
**/
void e1000_tbi_adjust_stats_82543(struct e1000_hw *hw,
struct e1000_hw_stats *stats, u32 frame_len,
u8 *mac_addr, u32 max_frame_size)
{
if (!(e1000_tbi_sbp_enabled_82543(hw)))
goto out;
/* First adjust the frame length. */
frame_len--;
/*
* We need to adjust the statistics counters, since the hardware
* counters overcount this packet as a CRC error and undercount
* the packet as a good packet
*/
/* This packet should not be counted as a CRC error. */
stats->crcerrs--;
/* This packet does count as a Good Packet Received. */
stats->gprc++;
/* Adjust the Good Octets received counters */
stats->gorc += frame_len;
/*
* Is this a broadcast or multicast? Check broadcast first,
* since the test for a multicast frame will test positive on
* a broadcast frame.
*/
if ((mac_addr[0] == 0xff) && (mac_addr[1] == 0xff))
/* Broadcast packet */
stats->bprc++;
else if (*mac_addr & 0x01)
/* Multicast packet */
stats->mprc++;
/*
* In this case, the hardware has overcounted the number of
* oversize frames.
*/
if ((frame_len == max_frame_size) && (stats->roc > 0))
stats->roc--;
/*
* Adjust the bin counters when the extra byte put the frame in the
* wrong bin. Remember that the frame_len was adjusted above.
*/
if (frame_len == 64) {
stats->prc64++;
stats->prc127--;
} else if (frame_len == 127) {
stats->prc127++;
stats->prc255--;
} else if (frame_len == 255) {
stats->prc255++;
stats->prc511--;
} else if (frame_len == 511) {
stats->prc511++;
stats->prc1023--;
} else if (frame_len == 1023) {
stats->prc1023++;
stats->prc1522--;
} else if (frame_len == 1522) {
stats->prc1522++;
}
out:
return;
}
/**
* e1000_read_phy_reg_82543 - Read PHY register
* @hw: pointer to the HW structure
* @offset: register offset to be read
* @data: pointer to the read data
*
* Reads the PHY at offset and stores the information read to data.
**/
static s32 e1000_read_phy_reg_82543(struct e1000_hw *hw, u32 offset, u16 *data)
{
u32 mdic;
s32 ret_val = E1000_SUCCESS;
DEBUGFUNC("e1000_read_phy_reg_82543");
if (offset > MAX_PHY_REG_ADDRESS) {
DEBUGOUT1("PHY Address %d is out of range\n", offset);
ret_val = -E1000_ERR_PARAM;
goto out;
}
/*
* We must first send a preamble through the MDIO pin to signal the
* beginning of an MII instruction. This is done by sending 32
* consecutive "1" bits.
*/
e1000_shift_out_mdi_bits_82543(hw, PHY_PREAMBLE, PHY_PREAMBLE_SIZE);
/*
* Now combine the next few fields that are required for a read
* operation. We use this method instead of calling the
* e1000_shift_out_mdi_bits routine five different times. The format
* of an MII read instruction consists of a shift out of 14 bits and
* is defined as follows:
* <Preamble><SOF><Op Code><Phy Addr><Offset>
* followed by a shift in of 18 bits. This first two bits shifted in
* are TurnAround bits used to avoid contention on the MDIO pin when a
* READ operation is performed. These two bits are thrown away
* followed by a shift in of 16 bits which contains the desired data.
*/
mdic = (offset | (hw->phy.addr << 5) |
(PHY_OP_READ << 10) | (PHY_SOF << 12));
e1000_shift_out_mdi_bits_82543(hw, mdic, 14);
/*
* Now that we've shifted out the read command to the MII, we need to
* "shift in" the 16-bit value (18 total bits) of the requested PHY
* register address.
*/
*data = e1000_shift_in_mdi_bits_82543(hw);
out:
return ret_val;
}
/**
* e1000_write_phy_reg_82543 - Write PHY register
* @hw: pointer to the HW structure
* @offset: register offset to be written
* @data: pointer to the data to be written at offset
*
* Writes data to the PHY at offset.
**/
static s32 e1000_write_phy_reg_82543(struct e1000_hw *hw, u32 offset, u16 data)
{
u32 mdic;
s32 ret_val = E1000_SUCCESS;
DEBUGFUNC("e1000_write_phy_reg_82543");
if (offset > MAX_PHY_REG_ADDRESS) {
DEBUGOUT1("PHY Address %d is out of range\n", offset);
ret_val = -E1000_ERR_PARAM;
goto out;
}
/*
* We'll need to use the SW defined pins to shift the write command
* out to the PHY. We first send a preamble to the PHY to signal the
* beginning of the MII instruction. This is done by sending 32
* consecutive "1" bits.
*/
e1000_shift_out_mdi_bits_82543(hw, PHY_PREAMBLE, PHY_PREAMBLE_SIZE);
/*
* Now combine the remaining required fields that will indicate a
* write operation. We use this method instead of calling the
* e1000_shift_out_mdi_bits routine for each field in the command. The
* format of a MII write instruction is as follows:
* <Preamble><SOF><Op Code><Phy Addr><Reg Addr><Turnaround><Data>.
*/
mdic = ((PHY_TURNAROUND) | (offset << 2) | (hw->phy.addr << 7) |
(PHY_OP_WRITE << 12) | (PHY_SOF << 14));
mdic <<= 16;
mdic |= (u32) data;
e1000_shift_out_mdi_bits_82543(hw, mdic, 32);
out:
return ret_val;
}
/**
* e1000_raise_mdi_clk_82543 - Raise Management Data Input clock
* @hw: pointer to the HW structure
* @ctrl: pointer to the control register
*
* Raise the management data input clock by setting the MDC bit in the control
* register.
**/
static void e1000_raise_mdi_clk_82543(struct e1000_hw *hw, u32 *ctrl)
{
/*
* Raise the clock input to the Management Data Clock (by setting the
* MDC bit), and then delay a sufficient amount of time.
*/
E1000_WRITE_REG(hw, E1000_CTRL, (*ctrl | E1000_CTRL_MDC));
E1000_WRITE_FLUSH(hw);
usec_delay(10);
}
/**
* e1000_lower_mdi_clk_82543 - Lower Management Data Input clock
* @hw: pointer to the HW structure
* @ctrl: pointer to the control register
*
* Lower the management data input clock by clearing the MDC bit in the
* control register.
**/
static void e1000_lower_mdi_clk_82543(struct e1000_hw *hw, u32 *ctrl)
{
/*
* Lower the clock input to the Management Data Clock (by clearing the
* MDC bit), and then delay a sufficient amount of time.
*/
E1000_WRITE_REG(hw, E1000_CTRL, (*ctrl & ~E1000_CTRL_MDC));
E1000_WRITE_FLUSH(hw);
usec_delay(10);
}
/**
* e1000_shift_out_mdi_bits_82543 - Shift data bits our to the PHY
* @hw: pointer to the HW structure
* @data: data to send to the PHY
* @count: number of bits to shift out
*
* We need to shift 'count' bits out to the PHY. So, the value in the
* "data" parameter will be shifted out to the PHY one bit at a time.
* In order to do this, "data" must be broken down into bits.
**/
static void e1000_shift_out_mdi_bits_82543(struct e1000_hw *hw, u32 data,
u16 count)
{
u32 ctrl, mask;
/*
* We need to shift "count" number of bits out to the PHY. So, the
* value in the "data" parameter will be shifted out to the PHY one
* bit at a time. In order to do this, "data" must be broken down
* into bits.
*/
mask = 0x01;
mask <<= (count -1);
ctrl = E1000_READ_REG(hw, E1000_CTRL);
/* Set MDIO_DIR and MDC_DIR direction bits to be used as output pins. */
ctrl |= (E1000_CTRL_MDIO_DIR | E1000_CTRL_MDC_DIR);
while (mask) {
/*
* A "1" is shifted out to the PHY by setting the MDIO bit to
* "1" and then raising and lowering the Management Data Clock.
* A "0" is shifted out to the PHY by setting the MDIO bit to
* "0" and then raising and lowering the clock.
*/
if (data & mask) ctrl |= E1000_CTRL_MDIO;
else ctrl &= ~E1000_CTRL_MDIO;
E1000_WRITE_REG(hw, E1000_CTRL, ctrl);
E1000_WRITE_FLUSH(hw);
usec_delay(10);
e1000_raise_mdi_clk_82543(hw, &ctrl);
e1000_lower_mdi_clk_82543(hw, &ctrl);
mask >>= 1;
}
}
/**
* e1000_shift_in_mdi_bits_82543 - Shift data bits in from the PHY
* @hw: pointer to the HW structure
*
* In order to read a register from the PHY, we need to shift 18 bits
* in from the PHY. Bits are "shifted in" by raising the clock input to
* the PHY (setting the MDC bit), and then reading the value of the data out
* MDIO bit.
**/
static u16 e1000_shift_in_mdi_bits_82543(struct e1000_hw *hw)
{
u32 ctrl;
u16 data = 0;
u8 i;
/*
* In order to read a register from the PHY, we need to shift in a
* total of 18 bits from the PHY. The first two bit (turnaround)
* times are used to avoid contention on the MDIO pin when a read
* operation is performed. These two bits are ignored by us and
* thrown away. Bits are "shifted in" by raising the input to the
* Management Data Clock (setting the MDC bit) and then reading the
* value of the MDIO bit.
*/
ctrl = E1000_READ_REG(hw, E1000_CTRL);
/*
* Clear MDIO_DIR (SWDPIO1) to indicate this bit is to be used as
* input.
*/
ctrl &= ~E1000_CTRL_MDIO_DIR;
ctrl &= ~E1000_CTRL_MDIO;
E1000_WRITE_REG(hw, E1000_CTRL, ctrl);
E1000_WRITE_FLUSH(hw);
/*
* Raise and lower the clock before reading in the data. This accounts
* for the turnaround bits. The first clock occurred when we clocked
* out the last bit of the Register Address.
*/
e1000_raise_mdi_clk_82543(hw, &ctrl);
e1000_lower_mdi_clk_82543(hw, &ctrl);
for (data = 0, i = 0; i < 16; i++) {
data <<= 1;
e1000_raise_mdi_clk_82543(hw, &ctrl);
ctrl = E1000_READ_REG(hw, E1000_CTRL);
/* Check to see if we shifted in a "1". */
if (ctrl & E1000_CTRL_MDIO)
data |= 1;
e1000_lower_mdi_clk_82543(hw, &ctrl);
}
e1000_raise_mdi_clk_82543(hw, &ctrl);
e1000_lower_mdi_clk_82543(hw, &ctrl);
return data;
}
/**
* e1000_phy_force_speed_duplex_82543 - Force speed/duplex for PHY
* @hw: pointer to the HW structure
*
* Calls the function to force speed and duplex for the m88 PHY, and
* if the PHY is not auto-negotiating and the speed is forced to 10Mbit,
* then call the function for polarity reversal workaround.
**/
static s32 e1000_phy_force_speed_duplex_82543(struct e1000_hw *hw)
{
s32 ret_val;
DEBUGFUNC("e1000_phy_force_speed_duplex_82543");
ret_val = e1000_phy_force_speed_duplex_m88(hw);
if (ret_val)
goto out;
if (!hw->mac.autoneg &&
(hw->mac.forced_speed_duplex & E1000_ALL_10_SPEED))
ret_val = e1000_polarity_reversal_workaround_82543(hw);
out:
return ret_val;
}
/**
* e1000_polarity_reversal_workaround_82543 - Workaround polarity reversal
* @hw: pointer to the HW structure
*
* When forcing link to 10 Full or 10 Half, the PHY can reverse the polarity
* inadvertently. To workaround the issue, we disable the transmitter on
* the PHY until we have established the link partner's link parameters.
**/
static s32 e1000_polarity_reversal_workaround_82543(struct e1000_hw *hw)
{
s32 ret_val = E1000_SUCCESS;
u16 mii_status_reg;
u16 i;
bool link;
if (!(hw->phy.ops.write_reg))
goto out;
/* Polarity reversal workaround for forced 10F/10H links. */
/* Disable the transmitter on the PHY */
ret_val = hw->phy.ops.write_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0019);
if (ret_val)
goto out;
ret_val = hw->phy.ops.write_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFFFF);
if (ret_val)
goto out;
ret_val = hw->phy.ops.write_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0000);
if (ret_val)
goto out;
/*
* This loop will early-out if the NO link condition has been met.
* In other words, DO NOT use e1000_phy_has_link_generic() here.
*/
for (i = PHY_FORCE_TIME; i > 0; i--) {
/*
* Read the MII Status Register and wait for Link Status bit
* to be clear.
*/
ret_val = hw->phy.ops.read_reg(hw, PHY_STATUS, &mii_status_reg);
if (ret_val)
goto out;
ret_val = hw->phy.ops.read_reg(hw, PHY_STATUS, &mii_status_reg);
if (ret_val)
goto out;
if ((mii_status_reg & ~MII_SR_LINK_STATUS) == 0)
break;
msec_delay_irq(100);
}
/* Recommended delay time after link has been lost */
msec_delay_irq(1000);
/* Now we will re-enable the transmitter on the PHY */
ret_val = hw->phy.ops.write_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0019);
if (ret_val)
goto out;
msec_delay_irq(50);
ret_val = hw->phy.ops.write_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFFF0);
if (ret_val)
goto out;
msec_delay_irq(50);
ret_val = hw->phy.ops.write_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFF00);
if (ret_val)
goto out;
msec_delay_irq(50);
ret_val = hw->phy.ops.write_reg(hw, M88E1000_PHY_GEN_CONTROL, 0x0000);
if (ret_val)
goto out;
ret_val = hw->phy.ops.write_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0000);
if (ret_val)
goto out;
/*
* Read the MII Status Register and wait for Link Status bit
* to be set.
*/
ret_val = e1000_phy_has_link_generic(hw, PHY_FORCE_TIME, 100000, &link);
if (ret_val)
goto out;
out:
return ret_val;
}
/**
* e1000_phy_hw_reset_82543 - PHY hardware reset
* @hw: pointer to the HW structure
*
* Sets the PHY_RESET_DIR bit in the extended device control register
* to put the PHY into a reset and waits for completion. Once the reset
* has been accomplished, clear the PHY_RESET_DIR bit to take the PHY out
* of reset.
**/
static s32 e1000_phy_hw_reset_82543(struct e1000_hw *hw)
{
u32 ctrl_ext;
s32 ret_val;
DEBUGFUNC("e1000_phy_hw_reset_82543");
/*
* Read the Extended Device Control Register, assert the PHY_RESET_DIR
* bit to put the PHY into reset...
*/
ctrl_ext = E1000_READ_REG(hw, E1000_CTRL_EXT);
ctrl_ext |= E1000_CTRL_EXT_SDP4_DIR;
ctrl_ext &= ~E1000_CTRL_EXT_SDP4_DATA;
E1000_WRITE_REG(hw, E1000_CTRL_EXT, ctrl_ext);
E1000_WRITE_FLUSH(hw);
msec_delay(10);
/* ...then take it out of reset. */
ctrl_ext |= E1000_CTRL_EXT_SDP4_DATA;
E1000_WRITE_REG(hw, E1000_CTRL_EXT, ctrl_ext);
E1000_WRITE_FLUSH(hw);
usec_delay(150);
if (!(hw->phy.ops.get_cfg_done))
return E1000_SUCCESS;
ret_val = hw->phy.ops.get_cfg_done(hw);
return ret_val;
}
/**
* e1000_reset_hw_82543 - Reset hardware
* @hw: pointer to the HW structure
*
* This resets the hardware into a known state.
**/
static s32 e1000_reset_hw_82543(struct e1000_hw *hw)
{
u32 ctrl, icr;
s32 ret_val = E1000_SUCCESS;
DEBUGFUNC("e1000_reset_hw_82543");
DEBUGOUT("Masking off all interrupts\n");
E1000_WRITE_REG(hw, E1000_IMC, 0xffffffff);
E1000_WRITE_REG(hw, E1000_RCTL, 0);
E1000_WRITE_REG(hw, E1000_TCTL, E1000_TCTL_PSP);
E1000_WRITE_FLUSH(hw);
e1000_set_tbi_sbp_82543(hw, FALSE);
/*
* Delay to allow any outstanding PCI transactions to complete before
* resetting the device
*/
msec_delay(10);
ctrl = E1000_READ_REG(hw, E1000_CTRL);
DEBUGOUT("Issuing a global reset to 82543/82544 MAC\n");
if (hw->mac.type == e1000_82543) {
E1000_WRITE_REG(hw, E1000_CTRL, ctrl | E1000_CTRL_RST);
} else {
/*
* The 82544 can't ACK the 64-bit write when issuing the
* reset, so use IO-mapping as a workaround.
*/
E1000_WRITE_REG_IO(hw, E1000_CTRL, ctrl | E1000_CTRL_RST);
}
/*
* After MAC reset, force reload of NVM to restore power-on
* settings to device.
*/
hw->nvm.ops.reload(hw);
msec_delay(2);
/* Masking off and clearing any pending interrupts */
E1000_WRITE_REG(hw, E1000_IMC, 0xffffffff);
icr = E1000_READ_REG(hw, E1000_ICR);
return ret_val;
}
/**
* e1000_init_hw_82543 - Initialize hardware
* @hw: pointer to the HW structure
*
* This inits the hardware readying it for operation.
**/
static s32 e1000_init_hw_82543(struct e1000_hw *hw)
{
struct e1000_mac_info *mac = &hw->mac;
struct e1000_dev_spec_82543 *dev_spec = &hw->dev_spec._82543;
u32 ctrl;
s32 ret_val;
u16 i;
DEBUGFUNC("e1000_init_hw_82543");
/* Disabling VLAN filtering */
E1000_WRITE_REG(hw, E1000_VET, 0);
mac->ops.clear_vfta(hw);
/* Setup the receive address. */
e1000_init_rx_addrs_generic(hw, mac->rar_entry_count);
/* Zero out the Multicast HASH table */
DEBUGOUT("Zeroing the MTA\n");
for (i = 0; i < mac->mta_reg_count; i++) {
E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0);
E1000_WRITE_FLUSH(hw);
}
/*
* Set the PCI priority bit correctly in the CTRL register. This
* determines if the adapter gives priority to receives, or if it
* gives equal priority to transmits and receives.
*/
if (hw->mac.type == e1000_82543 && dev_spec->dma_fairness) {
ctrl = E1000_READ_REG(hw, E1000_CTRL);
E1000_WRITE_REG(hw, E1000_CTRL, ctrl | E1000_CTRL_PRIOR);
}
e1000_pcix_mmrbc_workaround_generic(hw);
/* Setup link and flow control */
ret_val = mac->ops.setup_link(hw);
/*
* Clear all of the statistics registers (clear on read). It is
* important that we do this after we have tried to establish link
* because the symbol error count will increment wildly if there
* is no link.
*/
e1000_clear_hw_cntrs_82543(hw);
return ret_val;
}
/**
* e1000_setup_link_82543 - Setup flow control and link settings
* @hw: pointer to the HW structure
*
* Read the EEPROM to determine the initial polarity value and write the
* extended device control register with the information before calling
* the generic setup link function, which does the following:
* Determines which flow control settings to use, then configures flow
* control. Calls the appropriate media-specific link configuration
* function. Assuming the adapter has a valid link partner, a valid link
* should be established. Assumes the hardware has previously been reset
* and the transmitter and receiver are not enabled.
**/
static s32 e1000_setup_link_82543(struct e1000_hw *hw)
{
u32 ctrl_ext;
s32 ret_val;
u16 data;
DEBUGFUNC("e1000_setup_link_82543");
/*
* Take the 4 bits from NVM word 0xF that determine the initial
* polarity value for the SW controlled pins, and setup the
* Extended Device Control reg with that info.
* This is needed because one of the SW controlled pins is used for
* signal detection. So this should be done before phy setup.
*/
if (hw->mac.type == e1000_82543) {
ret_val = hw->nvm.ops.read(hw, NVM_INIT_CONTROL2_REG, 1, &data);
if (ret_val) {
DEBUGOUT("NVM Read Error\n");
ret_val = -E1000_ERR_NVM;
goto out;
}
ctrl_ext = ((data & NVM_WORD0F_SWPDIO_EXT_MASK) <<
NVM_SWDPIO_EXT_SHIFT);
E1000_WRITE_REG(hw, E1000_CTRL_EXT, ctrl_ext);
}
ret_val = e1000_setup_link_generic(hw);
out:
return ret_val;
}
/**
* e1000_setup_copper_link_82543 - Configure copper link settings
* @hw: pointer to the HW structure
*
* Configures the link for auto-neg or forced speed and duplex. Then we check
* for link, once link is established calls to configure collision distance
* and flow control are called.
**/
static s32 e1000_setup_copper_link_82543(struct e1000_hw *hw)
{
u32 ctrl;
s32 ret_val;
bool link;
DEBUGFUNC("e1000_setup_copper_link_82543");
ctrl = E1000_READ_REG(hw, E1000_CTRL) | E1000_CTRL_SLU;
/*
* With 82543, we need to force speed and duplex on the MAC
* equal to what the PHY speed and duplex configuration is.
* In addition, we need to perform a hardware reset on the
* PHY to take it out of reset.
*/
if (hw->mac.type == e1000_82543) {
ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
E1000_WRITE_REG(hw, E1000_CTRL, ctrl);
ret_val = hw->phy.ops.reset(hw);
if (ret_val)
goto out;
} else {
ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
E1000_WRITE_REG(hw, E1000_CTRL, ctrl);
}
/* Set MDI/MDI-X, Polarity Reversal, and downshift settings */
ret_val = e1000_copper_link_setup_m88(hw);
if (ret_val)
goto out;
if (hw->mac.autoneg) {
/*
* Setup autoneg and flow control advertisement and perform
* autonegotiation.
*/
ret_val = e1000_copper_link_autoneg(hw);
if (ret_val)
goto out;
} else {
/*
* PHY will be set to 10H, 10F, 100H or 100F
* depending on user settings.
*/
DEBUGOUT("Forcing Speed and Duplex\n");
ret_val = e1000_phy_force_speed_duplex_82543(hw);
if (ret_val) {
DEBUGOUT("Error Forcing Speed and Duplex\n");
goto out;
}
}
/*
* Check link status. Wait up to 100 microseconds for link to become
* valid.
*/
ret_val = e1000_phy_has_link_generic(hw,
COPPER_LINK_UP_LIMIT,
10,
&link);
if (ret_val)
goto out;
if (link) {
DEBUGOUT("Valid link established!!!\n");
/* Config the MAC and PHY after link is up */
if (hw->mac.type == e1000_82544) {
hw->mac.ops.config_collision_dist(hw);
} else {
ret_val = e1000_config_mac_to_phy_82543(hw);
if (ret_val)
goto out;
}
ret_val = e1000_config_fc_after_link_up_generic(hw);
} else {
DEBUGOUT("Unable to establish link!!!\n");
}
out:
return ret_val;
}
/**
* e1000_setup_fiber_link_82543 - Setup link for fiber
* @hw: pointer to the HW structure
*
* Configures collision distance and flow control for fiber links. Upon
* successful setup, poll for link.
**/
static s32 e1000_setup_fiber_link_82543(struct e1000_hw *hw)
{
u32 ctrl;
s32 ret_val;
DEBUGFUNC("e1000_setup_fiber_link_82543");
ctrl = E1000_READ_REG(hw, E1000_CTRL);
/* Take the link out of reset */
ctrl &= ~E1000_CTRL_LRST;
hw->mac.ops.config_collision_dist(hw);
ret_val = e1000_commit_fc_settings_generic(hw);
if (ret_val)
goto out;
DEBUGOUT("Auto-negotiation enabled\n");
E1000_WRITE_REG(hw, E1000_CTRL, ctrl);
E1000_WRITE_FLUSH(hw);
msec_delay(1);
/*
* For these adapters, the SW definable pin 1 is cleared when the
* optics detect a signal. If we have a signal, then poll for a
* "Link-Up" indication.
*/
if (!(E1000_READ_REG(hw, E1000_CTRL) & E1000_CTRL_SWDPIN1)) {
ret_val = e1000_poll_fiber_serdes_link_generic(hw);
} else {
DEBUGOUT("No signal detected\n");
}
out:
return ret_val;
}
/**
* e1000_check_for_copper_link_82543 - Check for link (Copper)
* @hw: pointer to the HW structure
*
* Checks the phy for link, if link exists, do the following:
* - check for downshift
* - do polarity workaround (if necessary)
* - configure collision distance
* - configure flow control after link up
* - configure tbi compatibility
**/
static s32 e1000_check_for_copper_link_82543(struct e1000_hw *hw)
{
struct e1000_mac_info *mac = &hw->mac;
u32 icr, rctl;
s32 ret_val;
u16 speed, duplex;
bool link;
DEBUGFUNC("e1000_check_for_copper_link_82543");
if (!mac->get_link_status) {
ret_val = E1000_SUCCESS;
goto out;
}
ret_val = e1000_phy_has_link_generic(hw, 1, 0, &link);
if (ret_val)
goto out;
if (!link)
goto out; /* No link detected */
mac->get_link_status = FALSE;
e1000_check_downshift_generic(hw);
/*
* If we are forcing speed/duplex, then we can return since
* we have already determined whether we have link or not.
*/
if (!mac->autoneg) {
/*
* If speed and duplex are forced to 10H or 10F, then we will
* implement the polarity reversal workaround. We disable
* interrupts first, and upon returning, place the devices
* interrupt state to its previous value except for the link
* status change interrupt which will happened due to the
* execution of this workaround.
*/
if (mac->forced_speed_duplex & E1000_ALL_10_SPEED) {
E1000_WRITE_REG(hw, E1000_IMC, 0xFFFFFFFF);
ret_val = e1000_polarity_reversal_workaround_82543(hw);
icr = E1000_READ_REG(hw, E1000_ICR);
E1000_WRITE_REG(hw, E1000_ICS, (icr & ~E1000_ICS_LSC));
E1000_WRITE_REG(hw, E1000_IMS, IMS_ENABLE_MASK);
}
ret_val = -E1000_ERR_CONFIG;
goto out;
}
/*
* We have a M88E1000 PHY and Auto-Neg is enabled. If we
* have Si on board that is 82544 or newer, Auto
* Speed Detection takes care of MAC speed/duplex
* configuration. So we only need to configure Collision
* Distance in the MAC. Otherwise, we need to force
* speed/duplex on the MAC to the current PHY speed/duplex
* settings.
*/
if (mac->type == e1000_82544)
hw->mac.ops.config_collision_dist(hw);
else {
ret_val = e1000_config_mac_to_phy_82543(hw);
if (ret_val) {
DEBUGOUT("Error configuring MAC to PHY settings\n");
goto out;
}
}
/*
* Configure Flow Control now that Auto-Neg has completed.
* First, we need to restore the desired flow control
* settings because we may have had to re-autoneg with a
* different link partner.
*/
ret_val = e1000_config_fc_after_link_up_generic(hw);
if (ret_val) {
DEBUGOUT("Error configuring flow control\n");
}
/*
* At this point we know that we are on copper and we have
* auto-negotiated link. These are conditions for checking the link
* partner capability register. We use the link speed to determine if
* TBI compatibility needs to be turned on or off. If the link is not
* at gigabit speed, then TBI compatibility is not needed. If we are
* at gigabit speed, we turn on TBI compatibility.
*/
if (e1000_tbi_compatibility_enabled_82543(hw)) {
ret_val = mac->ops.get_link_up_info(hw, &speed, &duplex);
if (ret_val) {
DEBUGOUT("Error getting link speed and duplex\n");
return ret_val;
}
if (speed != SPEED_1000) {
/*
* If link speed is not set to gigabit speed,
* we do not need to enable TBI compatibility.
*/
if (e1000_tbi_sbp_enabled_82543(hw)) {
/*
* If we previously were in the mode,
* turn it off.
*/
e1000_set_tbi_sbp_82543(hw, FALSE);
rctl = E1000_READ_REG(hw, E1000_RCTL);
rctl &= ~E1000_RCTL_SBP;
E1000_WRITE_REG(hw, E1000_RCTL, rctl);
}
} else {
/*
* If TBI compatibility is was previously off,
* turn it on. For compatibility with a TBI link
* partner, we will store bad packets. Some
* frames have an additional byte on the end and
* will look like CRC errors to to the hardware.
*/
if (!e1000_tbi_sbp_enabled_82543(hw)) {
e1000_set_tbi_sbp_82543(hw, TRUE);
rctl = E1000_READ_REG(hw, E1000_RCTL);
rctl |= E1000_RCTL_SBP;
E1000_WRITE_REG(hw, E1000_RCTL, rctl);
}
}
}
out:
return ret_val;
}
/**
* e1000_check_for_fiber_link_82543 - Check for link (Fiber)
* @hw: pointer to the HW structure
*
* Checks for link up on the hardware. If link is not up and we have
* a signal, then we need to force link up.
**/
static s32 e1000_check_for_fiber_link_82543(struct e1000_hw *hw)
{
struct e1000_mac_info *mac = &hw->mac;
u32 rxcw, ctrl, status;
s32 ret_val = E1000_SUCCESS;
DEBUGFUNC("e1000_check_for_fiber_link_82543");
ctrl = E1000_READ_REG(hw, E1000_CTRL);
status = E1000_READ_REG(hw, E1000_STATUS);
rxcw = E1000_READ_REG(hw, E1000_RXCW);
/*
* If we don't have link (auto-negotiation failed or link partner
* cannot auto-negotiate), the cable is plugged in (we have signal),
* and our link partner is not trying to auto-negotiate with us (we
* are receiving idles or data), we need to force link up. We also
* need to give auto-negotiation time to complete, in case the cable
* was just plugged in. The autoneg_failed flag does this.
*/
/* (ctrl & E1000_CTRL_SWDPIN1) == 0 == have signal */
if ((!(ctrl & E1000_CTRL_SWDPIN1)) &&
(!(status & E1000_STATUS_LU)) &&
(!(rxcw & E1000_RXCW_C))) {
if (mac->autoneg_failed == 0) {
mac->autoneg_failed = 1;
ret_val = 0;
goto out;
}
DEBUGOUT("NOT RXing /C/, disable AutoNeg and force link.\n");
/* Disable auto-negotiation in the TXCW register */
E1000_WRITE_REG(hw, E1000_TXCW, (mac->txcw & ~E1000_TXCW_ANE));
/* Force link-up and also force full-duplex. */
ctrl = E1000_READ_REG(hw, E1000_CTRL);
ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FD);
E1000_WRITE_REG(hw, E1000_CTRL, ctrl);
/* Configure Flow Control after forcing link up. */
ret_val = e1000_config_fc_after_link_up_generic(hw);
if (ret_val) {
DEBUGOUT("Error configuring flow control\n");
goto out;
}
} else if ((ctrl & E1000_CTRL_SLU) && (rxcw & E1000_RXCW_C)) {
/*
* If we are forcing link and we are receiving /C/ ordered
* sets, re-enable auto-negotiation in the TXCW register
* and disable forced link in the Device Control register
* in an attempt to auto-negotiate with our link partner.
*/
DEBUGOUT("RXing /C/, enable AutoNeg and stop forcing link.\n");
E1000_WRITE_REG(hw, E1000_TXCW, mac->txcw);
E1000_WRITE_REG(hw, E1000_CTRL, (ctrl & ~E1000_CTRL_SLU));
mac->serdes_has_link = TRUE;
}
out:
return ret_val;
}
/**
* e1000_config_mac_to_phy_82543 - Configure MAC to PHY settings
* @hw: pointer to the HW structure
*
* For the 82543 silicon, we need to set the MAC to match the settings
* of the PHY, even if the PHY is auto-negotiating.
**/
static s32 e1000_config_mac_to_phy_82543(struct e1000_hw *hw)
{
u32 ctrl;
s32 ret_val = E1000_SUCCESS;
u16 phy_data;
DEBUGFUNC("e1000_config_mac_to_phy_82543");
if (!(hw->phy.ops.read_reg))
goto out;
/* Set the bits to force speed and duplex */
ctrl = E1000_READ_REG(hw, E1000_CTRL);
ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
ctrl &= ~(E1000_CTRL_SPD_SEL | E1000_CTRL_ILOS);
/*
* Set up duplex in the Device Control and Transmit Control
* registers depending on negotiated values.
*/
ret_val = hw->phy.ops.read_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
if (ret_val)
goto out;
ctrl &= ~E1000_CTRL_FD;
if (phy_data & M88E1000_PSSR_DPLX)
ctrl |= E1000_CTRL_FD;
hw->mac.ops.config_collision_dist(hw);
/*
* Set up speed in the Device Control register depending on
* negotiated values.
*/
if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_1000MBS)
ctrl |= E1000_CTRL_SPD_1000;
else if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_100MBS)
ctrl |= E1000_CTRL_SPD_100;
E1000_WRITE_REG(hw, E1000_CTRL, ctrl);
out:
return ret_val;
}
/**
* e1000_write_vfta_82543 - Write value to VLAN filter table
* @hw: pointer to the HW structure
* @offset: the 32-bit offset in which to write the value to.
* @value: the 32-bit value to write at location offset.
*
* This writes a 32-bit value to a 32-bit offset in the VLAN filter
* table.
**/
static void e1000_write_vfta_82543(struct e1000_hw *hw, u32 offset, u32 value)
{
u32 temp;
DEBUGFUNC("e1000_write_vfta_82543");
if ((hw->mac.type == e1000_82544) && (offset & 1)) {
temp = E1000_READ_REG_ARRAY(hw, E1000_VFTA, offset - 1);
E1000_WRITE_REG_ARRAY(hw, E1000_VFTA, offset, value);
E1000_WRITE_FLUSH(hw);
E1000_WRITE_REG_ARRAY(hw, E1000_VFTA, offset - 1, temp);
E1000_WRITE_FLUSH(hw);
} else {
e1000_write_vfta_generic(hw, offset, value);
}
}
/**
* e1000_led_on_82543 - Turn on SW controllable LED
* @hw: pointer to the HW structure
*
* Turns the SW defined LED on.
**/
static s32 e1000_led_on_82543(struct e1000_hw *hw)
{
u32 ctrl = E1000_READ_REG(hw, E1000_CTRL);
DEBUGFUNC("e1000_led_on_82543");
if (hw->mac.type == e1000_82544 &&
hw->phy.media_type == e1000_media_type_copper) {
/* Clear SW-definable Pin 0 to turn on the LED */
ctrl &= ~E1000_CTRL_SWDPIN0;
ctrl |= E1000_CTRL_SWDPIO0;
} else {
/* Fiber 82544 and all 82543 use this method */
ctrl |= E1000_CTRL_SWDPIN0;
ctrl |= E1000_CTRL_SWDPIO0;
}
E1000_WRITE_REG(hw, E1000_CTRL, ctrl);
return E1000_SUCCESS;
}
/**
* e1000_led_off_82543 - Turn off SW controllable LED
* @hw: pointer to the HW structure
*
* Turns the SW defined LED off.
**/
static s32 e1000_led_off_82543(struct e1000_hw *hw)
{
u32 ctrl = E1000_READ_REG(hw, E1000_CTRL);
DEBUGFUNC("e1000_led_off_82543");
if (hw->mac.type == e1000_82544 &&
hw->phy.media_type == e1000_media_type_copper) {
/* Set SW-definable Pin 0 to turn off the LED */
ctrl |= E1000_CTRL_SWDPIN0;
ctrl |= E1000_CTRL_SWDPIO0;
} else {
ctrl &= ~E1000_CTRL_SWDPIN0;
ctrl |= E1000_CTRL_SWDPIO0;
}
E1000_WRITE_REG(hw, E1000_CTRL, ctrl);
return E1000_SUCCESS;
}
/**
* e1000_clear_hw_cntrs_82543 - Clear device specific hardware counters
* @hw: pointer to the HW structure
*
* Clears the hardware counters by reading the counter registers.
**/
static void e1000_clear_hw_cntrs_82543(struct e1000_hw *hw)
{
DEBUGFUNC("e1000_clear_hw_cntrs_82543");
e1000_clear_hw_cntrs_base_generic(hw);
E1000_READ_REG(hw, E1000_PRC64);
E1000_READ_REG(hw, E1000_PRC127);
E1000_READ_REG(hw, E1000_PRC255);
E1000_READ_REG(hw, E1000_PRC511);
E1000_READ_REG(hw, E1000_PRC1023);
E1000_READ_REG(hw, E1000_PRC1522);
E1000_READ_REG(hw, E1000_PTC64);
E1000_READ_REG(hw, E1000_PTC127);
E1000_READ_REG(hw, E1000_PTC255);
E1000_READ_REG(hw, E1000_PTC511);
E1000_READ_REG(hw, E1000_PTC1023);
E1000_READ_REG(hw, E1000_PTC1522);
E1000_READ_REG(hw, E1000_ALGNERRC);
E1000_READ_REG(hw, E1000_RXERRC);
E1000_READ_REG(hw, E1000_TNCRS);
E1000_READ_REG(hw, E1000_CEXTERR);
E1000_READ_REG(hw, E1000_TSCTC);
E1000_READ_REG(hw, E1000_TSCTFC);
}
/**
* e1000_read_mac_addr_82543 - Read device MAC address
* @hw: pointer to the HW structure
*
* Reads the device MAC address from the EEPROM and stores the value.
* Since devices with two ports use the same EEPROM, we increment the
* last bit in the MAC address for the second port.
*
**/
s32 e1000_read_mac_addr_82543(struct e1000_hw *hw)
{
s32 ret_val = E1000_SUCCESS;
u16 offset, nvm_data, i;
DEBUGFUNC("e1000_read_mac_addr");
for (i = 0; i < ETH_ADDR_LEN; i += 2) {
offset = i >> 1;
ret_val = hw->nvm.ops.read(hw, offset, 1, &nvm_data);
if (ret_val) {
DEBUGOUT("NVM Read Error\n");
goto out;
}
hw->mac.perm_addr[i] = (u8)(nvm_data & 0xFF);
hw->mac.perm_addr[i+1] = (u8)(nvm_data >> 8);
}
/* Flip last bit of mac address if we're on second port */
if (hw->bus.func == E1000_FUNC_1)
hw->mac.perm_addr[5] ^= 1;
for (i = 0; i < ETH_ADDR_LEN; i++)
hw->mac.addr[i] = hw->mac.perm_addr[i];
out:
return ret_val;
}