/** * ixgbe_read_cs4227 - Read CS4227 register * @hw: pointer to hardware structure * @reg: register number to write * @value: pointer to receive value read * * Returns status code
*/ staticint ixgbe_read_cs4227(struct ixgbe_hw *hw, u16 reg, u16 *value)
{ return hw->link.ops.read_link_unlocked(hw, hw->link.addr, reg, value);
}
/** * ixgbe_write_cs4227 - Write CS4227 register * @hw: pointer to hardware structure * @reg: register number to write * @value: value to write to register * * Returns status code
*/ staticint ixgbe_write_cs4227(struct ixgbe_hw *hw, u16 reg, u16 value)
{ return hw->link.ops.write_link_unlocked(hw, hw->link.addr, reg, value);
}
/** * ixgbe_read_pe - Read register from port expander * @hw: pointer to hardware structure * @reg: register number to read * @value: pointer to receive read value * * Returns status code
*/ staticint ixgbe_read_pe(struct ixgbe_hw *hw, u8 reg, u8 *value)
{ int status;
status = ixgbe_read_i2c_byte_generic_unlocked(hw, reg, IXGBE_PE, value); if (status)
hw_err(hw, "port expander access failed with %d\n", status); return status;
}
/** * ixgbe_write_pe - Write register to port expander * @hw: pointer to hardware structure * @reg: register number to write * @value: value to write * * Returns status code
*/ staticint ixgbe_write_pe(struct ixgbe_hw *hw, u8 reg, u8 value)
{ int status;
status = ixgbe_write_i2c_byte_generic_unlocked(hw, reg, IXGBE_PE,
value); if (status)
hw_err(hw, "port expander access failed with %d\n", status); return status;
}
/** * ixgbe_reset_cs4227 - Reset CS4227 using port expander * @hw: pointer to hardware structure * * This function assumes that the caller has acquired the proper semaphore. * Returns error code
*/ staticint ixgbe_reset_cs4227(struct ixgbe_hw *hw)
{ int status;
u32 retry;
u16 value;
u8 reg;
/* Trigger hard reset. */
status = ixgbe_read_pe(hw, IXGBE_PE_OUTPUT, ®); if (status) return status;
reg |= IXGBE_PE_BIT1;
status = ixgbe_write_pe(hw, IXGBE_PE_OUTPUT, reg); if (status) return status;
status = ixgbe_read_pe(hw, IXGBE_PE_CONFIG, ®); if (status) return status;
reg &= ~IXGBE_PE_BIT1;
status = ixgbe_write_pe(hw, IXGBE_PE_CONFIG, reg); if (status) return status;
status = ixgbe_read_pe(hw, IXGBE_PE_OUTPUT, ®); if (status) return status;
reg &= ~IXGBE_PE_BIT1;
status = ixgbe_write_pe(hw, IXGBE_PE_OUTPUT, reg); if (status) return status;
status = ixgbe_read_pe(hw, IXGBE_PE_OUTPUT, ®); if (status) return status;
reg |= IXGBE_PE_BIT1;
status = ixgbe_write_pe(hw, IXGBE_PE_OUTPUT, reg); if (status) return status;
/* Wait for the reset to complete. */
msleep(IXGBE_CS4227_RESET_DELAY); for (retry = 0; retry < IXGBE_CS4227_RETRIES; retry++) {
status = ixgbe_read_cs4227(hw, IXGBE_CS4227_EFUSE_STATUS,
&value); if (!status && value == IXGBE_CS4227_EEPROM_LOAD_OK) break;
msleep(IXGBE_CS4227_CHECK_DELAY);
} if (retry == IXGBE_CS4227_RETRIES) {
hw_err(hw, "CS4227 reset did not complete\n"); return -EIO;
}
status = ixgbe_read_cs4227(hw, IXGBE_CS4227_EEPROM_STATUS, &value); if (status || !(value & IXGBE_CS4227_EEPROM_LOAD_OK)) {
hw_err(hw, "CS4227 EEPROM did not load successfully\n"); return -EIO;
}
return 0;
}
/** * ixgbe_check_cs4227 - Check CS4227 and reset as needed * @hw: pointer to hardware structure
*/ staticvoid ixgbe_check_cs4227(struct ixgbe_hw *hw)
{
u32 swfw_mask = hw->phy.phy_semaphore_mask; int status;
u16 value;
u8 retry;
for (retry = 0; retry < IXGBE_CS4227_RETRIES; retry++) {
status = hw->mac.ops.acquire_swfw_sync(hw, swfw_mask); if (status) {
hw_err(hw, "semaphore failed with %d\n", status);
msleep(IXGBE_CS4227_CHECK_DELAY); continue;
}
/* Get status of reset flow. */
status = ixgbe_read_cs4227(hw, IXGBE_CS4227_SCRATCH, &value); if (!status && value == IXGBE_CS4227_RESET_COMPLETE) goto out;
if (status || value != IXGBE_CS4227_RESET_PENDING) break;
/* Reset is pending. Wait and check again. */
hw->mac.ops.release_swfw_sync(hw, swfw_mask);
msleep(IXGBE_CS4227_CHECK_DELAY);
} /* If still pending, assume other instance failed. */ if (retry == IXGBE_CS4227_RETRIES) {
status = hw->mac.ops.acquire_swfw_sync(hw, swfw_mask); if (status) {
hw_err(hw, "semaphore failed with %d\n", status); return;
}
}
/* Reset the CS4227. */
status = ixgbe_reset_cs4227(hw); if (status) {
hw_err(hw, "CS4227 reset failed: %d", status); goto out;
}
/* Reset takes so long, temporarily release semaphore in case the * other driver instance is waiting for the reset indication.
*/
ixgbe_write_cs4227(hw, IXGBE_CS4227_SCRATCH,
IXGBE_CS4227_RESET_PENDING);
hw->mac.ops.release_swfw_sync(hw, swfw_mask);
usleep_range(10000, 12000);
status = hw->mac.ops.acquire_swfw_sync(hw, swfw_mask); if (status) {
hw_err(hw, "semaphore failed with %d", status); return;
}
/* Record completion for next time. */
status = ixgbe_write_cs4227(hw, IXGBE_CS4227_SCRATCH,
IXGBE_CS4227_RESET_COMPLETE);
/** * ixgbe_read_i2c_combined_generic - Perform I2C read combined operation * @hw: pointer to the hardware structure * @addr: I2C bus address to read from * @reg: I2C device register to read from * @val: pointer to location to receive read value * * Returns an error code on error.
**/ staticint ixgbe_read_i2c_combined_generic(struct ixgbe_hw *hw, u8 addr,
u16 reg, u16 *val)
{ return ixgbe_read_i2c_combined_generic_int(hw, addr, reg, val, true);
}
/** * ixgbe_read_i2c_combined_generic_unlocked - Do I2C read combined operation * @hw: pointer to the hardware structure * @addr: I2C bus address to read from * @reg: I2C device register to read from * @val: pointer to location to receive read value * * Returns an error code on error.
**/ staticint
ixgbe_read_i2c_combined_generic_unlocked(struct ixgbe_hw *hw, u8 addr,
u16 reg, u16 *val)
{ return ixgbe_read_i2c_combined_generic_int(hw, addr, reg, val, false);
}
/** * ixgbe_write_i2c_combined_generic - Perform I2C write combined operation * @hw: pointer to the hardware structure * @addr: I2C bus address to write to * @reg: I2C device register to write to * @val: value to write * * Returns an error code on error.
**/ staticint ixgbe_write_i2c_combined_generic(struct ixgbe_hw *hw,
u8 addr, u16 reg, u16 val)
{ return ixgbe_write_i2c_combined_generic_int(hw, addr, reg, val, true);
}
/** * ixgbe_write_i2c_combined_generic_unlocked - Do I2C write combined operation * @hw: pointer to the hardware structure * @addr: I2C bus address to write to * @reg: I2C device register to write to * @val: value to write * * Returns an error code on error.
**/ staticint
ixgbe_write_i2c_combined_generic_unlocked(struct ixgbe_hw *hw,
u8 addr, u16 reg, u16 val)
{ return ixgbe_write_i2c_combined_generic_int(hw, addr, reg, val, false);
}
/** * ixgbe_fw_phy_activity - Perform an activity on a PHY * @hw: pointer to hardware structure * @activity: activity to perform * @data: Pointer to 4 32-bit words of data
*/ int ixgbe_fw_phy_activity(struct ixgbe_hw *hw, u16 activity,
u32 (*data)[FW_PHY_ACT_DATA_COUNT])
{ union { struct ixgbe_hic_phy_activity_req cmd; struct ixgbe_hic_phy_activity_resp rsp;
} hic;
u16 retries = FW_PHY_ACT_RETRIES; int rc;
u32 i;
do {
memset(&hic, 0, sizeof(hic));
hic.cmd.hdr.cmd = FW_PHY_ACT_REQ_CMD;
hic.cmd.hdr.buf_len = FW_PHY_ACT_REQ_LEN;
hic.cmd.hdr.checksum = FW_DEFAULT_CHECKSUM;
hic.cmd.port_number = hw->bus.lan_id;
hic.cmd.activity_id = cpu_to_le16(activity); for (i = 0; i < ARRAY_SIZE(hic.cmd.data); ++i)
hic.cmd.data[i] = cpu_to_be32((*data)[i]);
rc = ixgbe_host_interface_command(hw, &hic.cmd, sizeof(hic.cmd),
IXGBE_HI_COMMAND_TIMEOUT, true); if (rc) return rc; if (hic.rsp.hdr.cmd_or_resp.ret_status ==
FW_CEM_RESP_STATUS_SUCCESS) { for (i = 0; i < FW_PHY_ACT_DATA_COUNT; ++i)
(*data)[i] = be32_to_cpu(hic.rsp.data[i]); return 0;
}
usleep_range(20, 30);
--retries;
} while (retries > 0);
if (hw->phy.reset_disable || ixgbe_check_reset_blocked(hw)) return 0;
if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
hw_err(hw, "rx_pause not valid in strict IEEE mode\n"); return -EINVAL;
}
switch (hw->fc.requested_mode) { case ixgbe_fc_full:
setup[0] |= FW_PHY_ACT_SETUP_LINK_PAUSE_RXTX <<
FW_PHY_ACT_SETUP_LINK_PAUSE_SHIFT; break; case ixgbe_fc_rx_pause:
setup[0] |= FW_PHY_ACT_SETUP_LINK_PAUSE_RX <<
FW_PHY_ACT_SETUP_LINK_PAUSE_SHIFT; break; case ixgbe_fc_tx_pause:
setup[0] |= FW_PHY_ACT_SETUP_LINK_PAUSE_TX <<
FW_PHY_ACT_SETUP_LINK_PAUSE_SHIFT; break; default: break;
}
for (i = 0; i < ARRAY_SIZE(ixgbe_fw_map); ++i) { if (hw->phy.autoneg_advertised & ixgbe_fw_map[i].phy_speed)
setup[0] |= ixgbe_fw_map[i].fw_speed;
}
setup[0] |= FW_PHY_ACT_SETUP_LINK_HP | FW_PHY_ACT_SETUP_LINK_AN;
if (hw->phy.eee_speeds_advertised)
setup[0] |= FW_PHY_ACT_SETUP_LINK_EEE;
rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_SETUP_LINK, &setup); if (rc) return rc;
if (setup[0] == FW_PHY_ACT_SETUP_LINK_RSP_DOWN) return -EIO;
return 0;
}
/** * ixgbe_fc_autoneg_fw - Set up flow control for FW-controlled PHYs * @hw: pointer to hardware structure * * Called at init time to set up flow control.
*/ staticint ixgbe_fc_autoneg_fw(struct ixgbe_hw *hw)
{ if (hw->fc.requested_mode == ixgbe_fc_default)
hw->fc.requested_mode = ixgbe_fc_full;
return ixgbe_setup_fw_link(hw);
}
/** ixgbe_init_eeprom_params_X550 - Initialize EEPROM params * @hw: pointer to hardware structure * * Initializes the EEPROM parameters ixgbe_eeprom_info within the * ixgbe_hw struct in order to set up EEPROM access.
**/ staticint ixgbe_init_eeprom_params_X550(struct ixgbe_hw *hw)
{ struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
if (eeprom->type == ixgbe_eeprom_uninitialized) {
u16 eeprom_size;
u32 eec;
/** * ixgbe_iosf_wait - Wait for IOSF command completion * @hw: pointer to hardware structure * @ctrl: pointer to location to receive final IOSF control value * * Return: failing status on timeout * * Note: ctrl can be NULL if the IOSF control register value is not needed
*/ staticint ixgbe_iosf_wait(struct ixgbe_hw *hw, u32 *ctrl)
{
u32 i, command;
/* Check every 10 usec to see if the address cycle completed. * The SB IOSF BUSY bit will clear when the operation is * complete.
*/ for (i = 0; i < IXGBE_MDIO_COMMAND_TIMEOUT; i++) {
command = IXGBE_READ_REG(hw, IXGBE_SB_IOSF_INDIRECT_CTRL); if (!(command & IXGBE_SB_IOSF_CTRL_BUSY)) break;
udelay(10);
} if (ctrl)
*ctrl = command; if (i == IXGBE_MDIO_COMMAND_TIMEOUT) {
hw_dbg(hw, "IOSF wait timed out\n"); return -EIO;
}
return 0;
}
/** ixgbe_read_iosf_sb_reg_x550 - Reads a value to specified register of the * IOSF device * @hw: pointer to hardware structure * @reg_addr: 32 bit PHY register to write * @device_type: 3 bit device type * @phy_data: Pointer to read data from the register
**/ staticint ixgbe_read_iosf_sb_reg_x550(struct ixgbe_hw *hw, u32 reg_addr,
u32 device_type, u32 *data)
{
u32 gssr = IXGBE_GSSR_PHY1_SM | IXGBE_GSSR_PHY0_SM;
u32 command, error; int ret;
ret = hw->mac.ops.acquire_swfw_sync(hw, gssr); if (ret) return ret;
ret = ixgbe_iosf_wait(hw, NULL); if (ret) goto out;
status = ixgbe_host_interface_command(hw, &hic.cmd, sizeof(hic.cmd),
IXGBE_HI_COMMAND_TIMEOUT, true);
/* Extract the register value from the response. */
*data = be32_to_cpu(hic.rsp.read_data);
return status;
}
/** ixgbe_read_ee_hostif_buffer_X550- Read EEPROM word(s) using hostif * @hw: pointer to hardware structure * @offset: offset of word in the EEPROM to read * @words: number of words * @data: word(s) read from the EEPROM * * Reads a 16 bit word(s) from the EEPROM using the hostif.
**/ staticint ixgbe_read_ee_hostif_buffer_X550(struct ixgbe_hw *hw,
u16 offset, u16 words, u16 *data)
{ const u32 mask = IXGBE_GSSR_SW_MNG_SM | IXGBE_GSSR_EEP_SM; struct ixgbe_hic_read_shadow_ram buffer;
u32 current_word = 0;
u16 words_to_read; int status;
u32 i;
/* Take semaphore for the entire operation. */
status = hw->mac.ops.acquire_swfw_sync(hw, mask); if (status) {
hw_dbg(hw, "EEPROM read buffer - semaphore failed\n"); return status;
}
while (words) { if (words > FW_MAX_READ_BUFFER_SIZE / 2)
words_to_read = FW_MAX_READ_BUFFER_SIZE / 2; else
words_to_read = words;
/** ixgbe_checksum_ptr_x550 - Checksum one pointer region * @hw: pointer to hardware structure * @ptr: pointer offset in eeprom * @size: size of section pointed by ptr, if 0 first word will be used as size * @csum: address of checksum to update * * Returns error status for any failure
**/ staticint ixgbe_checksum_ptr_x550(struct ixgbe_hw *hw, u16 ptr,
u16 size, u16 *csum, u16 *buffer,
u32 buffer_size)
{
u16 length, bufsz, i, start;
u16 *local_buffer;
u16 buf[256]; int status;
bufsz = ARRAY_SIZE(buf);
/* Read a chunk at the pointer location */ if (!buffer) {
status = ixgbe_read_ee_hostif_buffer_X550(hw, ptr, bufsz, buf); if (status) {
hw_dbg(hw, "Failed to read EEPROM image\n"); return status;
}
local_buffer = buf;
} else { if (buffer_size < ptr) return -EINVAL;
local_buffer = &buffer[ptr];
}
/* Skip pointer section if length is invalid. */ if (length == 0xFFFF || length == 0 ||
(ptr + length) >= hw->eeprom.word_size) return 0;
}
if (buffer && ((u32)start + (u32)length > buffer_size)) return -EINVAL;
for (i = start; length; i++, length--) { if (i == bufsz && !buffer) {
ptr += bufsz;
i = 0; if (length < bufsz)
bufsz = length;
/* Read a chunk at the pointer location */
status = ixgbe_read_ee_hostif_buffer_X550(hw, ptr,
bufsz, buf); if (status) {
hw_dbg(hw, "Failed to read EEPROM image\n"); return status;
}
}
*csum += local_buffer[i];
} return 0;
}
/** ixgbe_calc_checksum_X550 - Calculates and returns the checksum * @hw: pointer to hardware structure * @buffer: pointer to buffer containing calculated checksum * @buffer_size: size of buffer * * Returns a negative error code on error, or the 16-bit checksum
**/ staticint ixgbe_calc_checksum_X550(struct ixgbe_hw *hw, u16 *buffer,
u32 buffer_size)
{
u16 eeprom_ptrs[IXGBE_EEPROM_LAST_WORD + 1];
u16 pointer, i, size;
u16 *local_buffer;
u16 checksum = 0; int status;
hw->eeprom.ops.init_params(hw);
if (!buffer) { /* Read pointer area */
status = ixgbe_read_ee_hostif_buffer_X550(hw, 0,
IXGBE_EEPROM_LAST_WORD + 1,
eeprom_ptrs); if (status) {
hw_dbg(hw, "Failed to read EEPROM image\n"); return status;
}
local_buffer = eeprom_ptrs;
} else { if (buffer_size < IXGBE_EEPROM_LAST_WORD) return -EINVAL;
local_buffer = buffer;
}
/* For X550 hardware include 0x0-0x41 in the checksum, skip the * checksum word itself
*/ for (i = 0; i <= IXGBE_EEPROM_LAST_WORD; i++) if (i != IXGBE_EEPROM_CHECKSUM)
checksum += local_buffer[i];
/* Include all data from pointers 0x3, 0x6-0xE. This excludes the * FW, PHY module, and PCIe Expansion/Option ROM pointers.
*/ for (i = IXGBE_PCIE_ANALOG_PTR_X550; i < IXGBE_FW_PTR; i++) { if (i == IXGBE_PHY_PTR || i == IXGBE_OPTION_ROM_PTR) continue;
pointer = local_buffer[i];
/* Skip pointer section if the pointer is invalid. */ if (pointer == 0xFFFF || pointer == 0 ||
pointer >= hw->eeprom.word_size) continue;
switch (i) { case IXGBE_PCIE_GENERAL_PTR:
size = IXGBE_IXGBE_PCIE_GENERAL_SIZE; break; case IXGBE_PCIE_CONFIG0_PTR: case IXGBE_PCIE_CONFIG1_PTR:
size = IXGBE_PCIE_CONFIG_SIZE; break; default:
size = 0; break;
}
status = ixgbe_checksum_ptr_x550(hw, pointer, size, &checksum,
buffer, buffer_size); if (status) return status;
}
checksum = (u16)IXGBE_EEPROM_SUM - checksum;
return (int)checksum;
}
/** ixgbe_calc_eeprom_checksum_X550 - Calculates and returns the checksum * @hw: pointer to hardware structure * * Returns a negative error code on error, or the 16-bit checksum
**/ staticint ixgbe_calc_eeprom_checksum_X550(struct ixgbe_hw *hw)
{ return ixgbe_calc_checksum_X550(hw, NULL, 0);
}
/** ixgbe_read_ee_hostif_X550 - Read EEPROM word using a host interface command * @hw: pointer to hardware structure * @offset: offset of word in the EEPROM to read * @data: word read from the EEPROM * * Reads a 16 bit word from the EEPROM using the hostif.
**/ staticint ixgbe_read_ee_hostif_X550(struct ixgbe_hw *hw, u16 offset, u16 *data)
{ const u32 mask = IXGBE_GSSR_SW_MNG_SM | IXGBE_GSSR_EEP_SM; struct ixgbe_hic_read_shadow_ram buffer; int status;
/* convert offset from words to bytes */
buffer.address = (__force u32)cpu_to_be32(offset * 2); /* one word */
buffer.length = (__force u16)cpu_to_be16(sizeof(u16));
status = hw->mac.ops.acquire_swfw_sync(hw, mask); if (status) return status;
status = ixgbe_hic_unlocked(hw, (u32 *)&buffer, sizeof(buffer),
IXGBE_HI_COMMAND_TIMEOUT); if (!status) {
*data = (u16)IXGBE_READ_REG_ARRAY(hw, IXGBE_FLEX_MNG,
FW_NVM_DATA_OFFSET);
}
/** ixgbe_validate_eeprom_checksum_X550 - Validate EEPROM checksum * @hw: pointer to hardware structure * @checksum_val: calculated checksum * * Performs checksum calculation and validates the EEPROM checksum. If the * caller does not need checksum_val, the value can be NULL.
**/ staticint ixgbe_validate_eeprom_checksum_X550(struct ixgbe_hw *hw,
u16 *checksum_val)
{
u16 read_checksum = 0;
u16 checksum; int status;
/* Read the first word from the EEPROM. If this times out or fails, do * not continue or we could be in for a very long wait while every * EEPROM read fails
*/
status = hw->eeprom.ops.read(hw, 0, &checksum); if (status) {
hw_dbg(hw, "EEPROM read failed\n"); return status;
}
status = hw->eeprom.ops.calc_checksum(hw); if (status < 0) return status;
checksum = (u16)(status & 0xffff);
status = ixgbe_read_ee_hostif_X550(hw, IXGBE_EEPROM_CHECKSUM,
&read_checksum); if (status) return status;
/* Verify read checksum from EEPROM is the same as * calculated checksum
*/ if (read_checksum != checksum) {
status = -EIO;
hw_dbg(hw, "Invalid EEPROM checksum");
}
/* If the user cares, return the calculated checksum */ if (checksum_val)
*checksum_val = checksum;
return status;
}
/** ixgbe_write_ee_hostif_X550 - Write EEPROM word using hostif * @hw: pointer to hardware structure * @offset: offset of word in the EEPROM to write * @data: word write to the EEPROM * * Write a 16 bit word to the EEPROM using the hostif.
**/ staticint ixgbe_write_ee_hostif_data_X550(struct ixgbe_hw *hw, u16 offset,
u16 data)
{ struct ixgbe_hic_write_shadow_ram buffer; int status;
/* one word */
buffer.length = cpu_to_be16(sizeof(u16));
buffer.data = data;
buffer.address = cpu_to_be32(offset * 2);
status = ixgbe_host_interface_command(hw, &buffer, sizeof(buffer),
IXGBE_HI_COMMAND_TIMEOUT, false); return status;
}
/** ixgbe_write_ee_hostif_X550 - Write EEPROM word using hostif * @hw: pointer to hardware structure * @offset: offset of word in the EEPROM to write * @data: word write to the EEPROM * * Write a 16 bit word to the EEPROM using the hostif.
**/ staticint ixgbe_write_ee_hostif_X550(struct ixgbe_hw *hw, u16 offset, u16 data)
{ int status = 0;
if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) == 0) {
status = ixgbe_write_ee_hostif_data_X550(hw, offset, data);
hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
} else {
hw_dbg(hw, "write ee hostif failed to get semaphore");
status = -EBUSY;
}
return status;
}
/** ixgbe_update_flash_X550 - Instruct HW to copy EEPROM to Flash device * @hw: pointer to hardware structure * * Issue a shadow RAM dump to FW to copy EEPROM from shadow RAM to the flash.
**/ staticint ixgbe_update_flash_X550(struct ixgbe_hw *hw)
{ union ixgbe_hic_hdr2 buffer; int status = 0;
status = ixgbe_host_interface_command(hw, &buffer, sizeof(buffer),
IXGBE_HI_COMMAND_TIMEOUT, false); return status;
}
/** * ixgbe_get_bus_info_X550em - Set PCI bus info * @hw: pointer to hardware structure * * Sets bus link width and speed to unknown because X550em is * not a PCI device.
**/ staticint ixgbe_get_bus_info_X550em(struct ixgbe_hw *hw)
{
hw->bus.type = ixgbe_bus_type_internal;
hw->bus.width = ixgbe_bus_width_unknown;
hw->bus.speed = ixgbe_bus_speed_unknown;
status = ixgbe_host_interface_command(hw, &fw_cmd, sizeof(struct ixgbe_hic_disable_rxen),
IXGBE_HI_COMMAND_TIMEOUT, true);
/* If we fail - disable RX using register write */ if (status) {
rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); if (rxctrl & IXGBE_RXCTRL_RXEN) {
rxctrl &= ~IXGBE_RXCTRL_RXEN;
IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl);
}
}
}
}
/** ixgbe_update_eeprom_checksum_X550 - Updates the EEPROM checksum and flash * @hw: pointer to hardware structure * * After writing EEPROM to shadow RAM using EEWR register, software calculates * checksum and updates the EEPROM and instructs the hardware to update * the flash.
**/ staticint ixgbe_update_eeprom_checksum_X550(struct ixgbe_hw *hw)
{
u16 checksum = 0; int status;
/* Read the first word from the EEPROM. If this times out or fails, do * not continue or we could be in for a very long wait while every * EEPROM read fails
*/
status = ixgbe_read_ee_hostif_X550(hw, 0, &checksum); if (status) {
hw_dbg(hw, "EEPROM read failed\n"); return status;
}
status = ixgbe_calc_eeprom_checksum_X550(hw); if (status < 0) return status;
checksum = (u16)(status & 0xffff);
status = ixgbe_write_ee_hostif_X550(hw, IXGBE_EEPROM_CHECKSUM,
checksum); if (status) return status;
status = ixgbe_update_flash_X550(hw);
return status;
}
/** ixgbe_write_ee_hostif_buffer_X550 - Write EEPROM word(s) using hostif * @hw: pointer to hardware structure * @offset: offset of word in the EEPROM to write * @words: number of words * @data: word(s) write to the EEPROM * * * Write a 16 bit word(s) to the EEPROM using the hostif.
**/ staticint ixgbe_write_ee_hostif_buffer_X550(struct ixgbe_hw *hw,
u16 offset, u16 words,
u16 *data)
{ int status = 0;
u32 i = 0;
/* Take semaphore for the entire operation. */
status = hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM); if (status) {
hw_dbg(hw, "EEPROM write buffer - semaphore failed\n"); return status;
}
for (i = 0; i < words; i++) {
status = ixgbe_write_ee_hostif_data_X550(hw, offset + i,
data[i]); if (status) {
hw_dbg(hw, "Eeprom buffered write failed\n"); break;
}
}
/** ixgbe_write_iosf_sb_reg_x550 - Writes a value to specified register of the * IOSF device * * @hw: pointer to hardware structure * @reg_addr: 32 bit PHY register to write * @device_type: 3 bit device type * @data: Data to write to the register
**/ staticint ixgbe_write_iosf_sb_reg_x550(struct ixgbe_hw *hw, u32 reg_addr,
u32 device_type, u32 data)
{
u32 gssr = IXGBE_GSSR_PHY1_SM | IXGBE_GSSR_PHY0_SM;
u32 command, error; int ret;
ret = hw->mac.ops.acquire_swfw_sync(hw, gssr); if (ret) return ret;
ret = ixgbe_iosf_wait(hw, NULL); if (ret) goto out;
/** * ixgbe_setup_ixfi_x550em_x - MAC specific iXFI configuration * @hw: pointer to hardware structure * * iXfI configuration needed for ixgbe_mac_X550EM_x devices.
**/ staticint ixgbe_setup_ixfi_x550em_x(struct ixgbe_hw *hw)
{
u32 reg_val; int status;
/* Disable training protocol FSM. */
status = ixgbe_read_iosf_sb_reg_x550(hw,
IXGBE_KRM_RX_TRN_LINKUP_CTRL(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val); if (status) return status;
reg_val |= IXGBE_KRM_RX_TRN_LINKUP_CTRL_CONV_WO_PROTOCOL;
status = ixgbe_write_iosf_sb_reg_x550(hw,
IXGBE_KRM_RX_TRN_LINKUP_CTRL(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val); if (status) return status;
/* Disable Flex from training TXFFE. */
status = ixgbe_read_iosf_sb_reg_x550(hw,
IXGBE_KRM_DSP_TXFFE_STATE_4(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val); if (status) return status;
reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_C0_EN;
reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_CP1_CN1_EN;
reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_CO_ADAPT_EN;
status = ixgbe_write_iosf_sb_reg_x550(hw,
IXGBE_KRM_DSP_TXFFE_STATE_4(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val); if (status) return status;
status = ixgbe_read_iosf_sb_reg_x550(hw,
IXGBE_KRM_DSP_TXFFE_STATE_5(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val); if (status) return status;
reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_C0_EN;
reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_CP1_CN1_EN;
reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_CO_ADAPT_EN;
status = ixgbe_write_iosf_sb_reg_x550(hw,
IXGBE_KRM_DSP_TXFFE_STATE_5(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val); if (status) return status;
/* Enable override for coefficients. */
status = ixgbe_read_iosf_sb_reg_x550(hw,
IXGBE_KRM_TX_COEFF_CTRL_1(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val); if (status) return status;
/** * ixgbe_restart_an_internal_phy_x550em - restart autonegotiation for the * internal PHY * @hw: pointer to hardware structure
**/ staticint ixgbe_restart_an_internal_phy_x550em(struct ixgbe_hw *hw)
{
u32 link_ctrl; int status;
/* Restart auto-negotiation. */
status = hw->mac.ops.read_iosf_sb_reg(hw,
IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, &link_ctrl);
if (status) {
hw_dbg(hw, "Auto-negotiation did not complete\n"); return status;
}
link_ctrl |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_RESTART;
status = hw->mac.ops.write_iosf_sb_reg(hw,
IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, link_ctrl);
if (hw->mac.type == ixgbe_mac_x550em_a) {
u32 flx_mask_st20;
/* Indicate to FW that AN restart has been asserted */
status = hw->mac.ops.read_iosf_sb_reg(hw,
IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, &flx_mask_st20);
if (status) {
hw_dbg(hw, "Auto-negotiation did not complete\n"); return status;
}
flx_mask_st20 |= IXGBE_KRM_PMD_FLX_MASK_ST20_FW_AN_RESTART;
status = hw->mac.ops.write_iosf_sb_reg(hw,
IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, flx_mask_st20);
}
return status;
}
/** ixgbe_setup_ixfi_x550em - Configure the KR PHY for iXFI mode. * @hw: pointer to hardware structure * @speed: the link speed to force * * Configures the integrated KR PHY to use iXFI mode. Used to connect an * internal and external PHY at a specific speed, without autonegotiation.
**/ staticint ixgbe_setup_ixfi_x550em(struct ixgbe_hw *hw, ixgbe_link_speed *speed)
{ struct ixgbe_mac_info *mac = &hw->mac;
u32 reg_val; int status;
/* iXFI is only supported with X552 */ if (mac->type != ixgbe_mac_X550EM_x) return -EIO;
/* Disable AN and force speed to 10G Serial. */
status = ixgbe_read_iosf_sb_reg_x550(hw,
IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val); if (status) return status;
/* Select forced link speed for internal PHY. */ switch (*speed) { case IXGBE_LINK_SPEED_10GB_FULL:
reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_10G; break; case IXGBE_LINK_SPEED_1GB_FULL:
reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_1G; break; default: /* Other link speeds are not supported by internal KR PHY. */ return -EINVAL;
}
status = ixgbe_write_iosf_sb_reg_x550(hw,
IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val); if (status) return status;
/* Additional configuration needed for x550em_x */ if (hw->mac.type == ixgbe_mac_X550EM_x) {
status = ixgbe_setup_ixfi_x550em_x(hw); if (status) return status;
}
/* Toggle port SW reset by AN reset. */
status = ixgbe_restart_an_internal_phy_x550em(hw);
return status;
}
/** * ixgbe_supported_sfp_modules_X550em - Check if SFP module type is supported * @hw: pointer to hardware structure * @linear: true if SFP module is linear
*/ staticint ixgbe_supported_sfp_modules_X550em(struct ixgbe_hw *hw, bool *linear)
{ switch (hw->phy.sfp_type) { case ixgbe_sfp_type_not_present: return -ENOENT; case ixgbe_sfp_type_da_cu_core0: case ixgbe_sfp_type_da_cu_core1:
*linear = true; break; case ixgbe_sfp_type_srlr_core0: case ixgbe_sfp_type_srlr_core1: case ixgbe_sfp_type_da_act_lmt_core0: case ixgbe_sfp_type_da_act_lmt_core1: case ixgbe_sfp_type_1g_sx_core0: case ixgbe_sfp_type_1g_sx_core1: case ixgbe_sfp_type_1g_lx_core0: case ixgbe_sfp_type_1g_lx_core1:
*linear = false; break; case ixgbe_sfp_type_unknown: case ixgbe_sfp_type_1g_cu_core0: case ixgbe_sfp_type_1g_cu_core1: default: return -EOPNOTSUPP;
}
return 0;
}
/** * ixgbe_setup_mac_link_sfp_x550em - Configure the KR PHY for SFP. * @hw: pointer to hardware structure * @speed: the link speed to force * @autoneg_wait_to_complete: unused * * Configures the extern PHY and the integrated KR PHY for SFP support.
*/ staticint
ixgbe_setup_mac_link_sfp_x550em(struct ixgbe_hw *hw,
ixgbe_link_speed speed,
__always_unused bool autoneg_wait_to_complete)
{ bool setup_linear = false;
u16 reg_slice, reg_val; int status;
/* Check if SFP module is supported and linear */
status = ixgbe_supported_sfp_modules_X550em(hw, &setup_linear);
/* If no SFP module present, then return success. Return success since * there is no reason to configure CS4227 and SFP not present error is * not accepted in the setup MAC link flow.
*/ if (status == -ENOENT) return 0;
if (status) return status;
/* Configure internal PHY for KR/KX. */
ixgbe_setup_kr_speed_x550em(hw, speed);
/* Configure CS4227 LINE side to proper mode. */
reg_slice = IXGBE_CS4227_LINE_SPARE24_LSB + (hw->bus.lan_id << 12); if (setup_linear)
reg_val = (IXGBE_CS4227_EDC_MODE_CX1 << 1) | 0x1; else
reg_val = (IXGBE_CS4227_EDC_MODE_SR << 1) | 0x1;
status = hw->link.ops.write_link(hw, hw->link.addr, reg_slice,
reg_val);
return status;
}
/** * ixgbe_setup_sfi_x550a - Configure the internal PHY for native SFI mode * @hw: pointer to hardware structure * @speed: the link speed to force * * Configures the integrated PHY for native SFI mode. Used to connect the * internal PHY directly to an SFP cage, without autonegotiation.
**/ staticint ixgbe_setup_sfi_x550a(struct ixgbe_hw *hw, ixgbe_link_speed *speed)
{ struct ixgbe_mac_info *mac = &hw->mac;
u32 reg_val; int status;
/* Disable all AN and force speed to 10G Serial. */
status = mac->ops.read_iosf_sb_reg(hw,
IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val); if (status) return status;
/* Select forced link speed for internal PHY. */ switch (*speed) { case IXGBE_LINK_SPEED_10GB_FULL:
reg_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_10G; break; case IXGBE_LINK_SPEED_1GB_FULL:
reg_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_1G; break; default: /* Other link speeds are not supported by internal PHY. */ return -EINVAL;
}
status = mac->ops.write_iosf_sb_reg(hw,
IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
/* Toggle port SW reset by AN reset. */
status = ixgbe_restart_an_internal_phy_x550em(hw);
return status;
}
/** * ixgbe_setup_mac_link_sfp_n - Setup internal PHY for native SFP * @hw: pointer to hardware structure * @speed: link speed * @autoneg_wait_to_complete: unused * * Configure the integrated PHY for native SFP support.
*/ staticint
ixgbe_setup_mac_link_sfp_n(struct ixgbe_hw *hw, ixgbe_link_speed speed,
__always_unused bool autoneg_wait_to_complete)
{ bool setup_linear = false;
u32 reg_phy_int; int ret_val;
/* Check if SFP module is supported and linear */
ret_val = ixgbe_supported_sfp_modules_X550em(hw, &setup_linear);
/* If no SFP module present, then return success. Return success since * SFP not present error is not accepted in the setup MAC link flow.
*/ if (ret_val == -ENOENT) return 0;
if (ret_val) return ret_val;
/* Configure internal PHY for native SFI based on module type */
ret_val = hw->mac.ops.read_iosf_sb_reg(hw,
IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, ®_phy_int); if (ret_val) return ret_val;
reg_phy_int &= IXGBE_KRM_PMD_FLX_MASK_ST20_SFI_10G_DA; if (!setup_linear)
reg_phy_int |= IXGBE_KRM_PMD_FLX_MASK_ST20_SFI_10G_SR;
ret_val = hw->mac.ops.write_iosf_sb_reg(hw,
IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, reg_phy_int); if (ret_val) return ret_val;
/** * ixgbe_setup_mac_link_sfp_x550a - Setup internal PHY for SFP * @hw: pointer to hardware structure * @speed: link speed * @autoneg_wait_to_complete: unused * * Configure the integrated PHY for SFP support.
*/ staticint
ixgbe_setup_mac_link_sfp_x550a(struct ixgbe_hw *hw, ixgbe_link_speed speed,
__always_unused bool autoneg_wait_to_complete)
{
u32 reg_slice, slice_offset; bool setup_linear = false;
u16 reg_phy_ext; int ret_val;
/* Check if SFP module is supported and linear */
ret_val = ixgbe_supported_sfp_modules_X550em(hw, &setup_linear);
/* If no SFP module present, then return success. Return success since * SFP not present error is not accepted in the setup MAC link flow.
*/ if (ret_val == -ENOENT) return 0;
if (ret_val) return ret_val;
/* Configure internal PHY for KR/KX. */
ixgbe_setup_kr_speed_x550em(hw, speed);
if (hw->phy.mdio.prtad == MDIO_PRTAD_NONE) return -EFAULT;
/* Get external PHY SKU id */
ret_val = hw->phy.ops.read_reg(hw, IXGBE_CS4227_EFUSE_PDF_SKU,
IXGBE_MDIO_ZERO_DEV_TYPE, ®_phy_ext); if (ret_val) return ret_val;
/* When configuring quad port CS4223, the MAC instance is part * of the slice offset.
*/ if (reg_phy_ext == IXGBE_CS4223_SKU_ID)
slice_offset = (hw->bus.lan_id +
(hw->bus.instance_id << 1)) << 12; else
slice_offset = hw->bus.lan_id << 12;
/* Configure CS4227/CS4223 LINE side to proper mode. */
reg_slice = IXGBE_CS4227_LINE_SPARE24_LSB + slice_offset;
ret_val = hw->phy.ops.read_reg(hw, reg_slice,
IXGBE_MDIO_ZERO_DEV_TYPE, ®_phy_ext); if (ret_val) return ret_val;
ret_val = hw->phy.ops.write_reg(hw, reg_slice,
IXGBE_MDIO_ZERO_DEV_TYPE, reg_phy_ext); if (ret_val) return ret_val;
/* Flush previous write with a read */ return hw->phy.ops.read_reg(hw, reg_slice,
IXGBE_MDIO_ZERO_DEV_TYPE, ®_phy_ext);
}
/** * ixgbe_setup_mac_link_t_X550em - Sets the auto advertised link speed * @hw: pointer to hardware structure * @speed: new link speed * @autoneg_wait: true when waiting for completion is needed * * Setup internal/external PHY link speed based on link speed, then set * external PHY auto advertised link speed. * * Returns error status for any failure
**/ staticint ixgbe_setup_mac_link_t_X550em(struct ixgbe_hw *hw,
ixgbe_link_speed speed, bool autoneg_wait)
{
ixgbe_link_speed force_speed; int status;
/* Setup internal/external PHY link speed to iXFI (10G), unless * only 1G is auto advertised then setup KX link.
*/ if (speed & IXGBE_LINK_SPEED_10GB_FULL)
force_speed = IXGBE_LINK_SPEED_10GB_FULL; else
force_speed = IXGBE_LINK_SPEED_1GB_FULL;
/* If X552 and internal link mode is XFI, then setup XFI internal link.
*/ if (hw->mac.type == ixgbe_mac_X550EM_x &&
!(hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_INT_PHY_MODE)) {
status = ixgbe_setup_ixfi_x550em(hw, &force_speed);
/** ixgbe_check_link_t_X550em - Determine link and speed status * @hw: pointer to hardware structure * @speed: pointer to link speed * @link_up: true when link is up * @link_up_wait_to_complete: bool used to wait for link up or not * * Check that both the MAC and X557 external PHY have link.
**/ staticint ixgbe_check_link_t_X550em(struct ixgbe_hw *hw,
ixgbe_link_speed *speed, bool *link_up, bool link_up_wait_to_complete)
{
u32 status;
u16 i, autoneg_status;
if (hw->mac.ops.get_media_type(hw) != ixgbe_media_type_copper) return -EIO;
status = ixgbe_check_mac_link_generic(hw, speed, link_up,
link_up_wait_to_complete);
/* If check link fails or MAC link is not up, then return */ if (status || !(*link_up)) return status;
/* MAC link is up, so check external PHY link. * Link status is latching low, and can only be used to detect link * drop, and not the current status of the link without performing * back-to-back reads.
*/ for (i = 0; i < 2; i++) {
status = hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN,
&autoneg_status);
if (status) return status;
}
/* If external PHY link is not up, then indicate link not up */ if (!(autoneg_status & IXGBE_MDIO_AUTO_NEG_LINK_STATUS))
*link_up = false;
return 0;
}
/** * ixgbe_setup_sgmii - Set up link for sgmii * @hw: pointer to hardware structure * @speed: unused * @autoneg_wait_to_complete: unused
*/ staticint
ixgbe_setup_sgmii(struct ixgbe_hw *hw, __always_unused ixgbe_link_speed speed,
__always_unused bool autoneg_wait_to_complete)
{ struct ixgbe_mac_info *mac = &hw->mac;
u32 lval, sval, flx_val; int rc;
rc = mac->ops.read_iosf_sb_reg(hw,
IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, &lval); if (rc) return rc;
/** * ixgbe_setup_sgmii_fw - Set up link for sgmii with firmware-controlled PHYs * @hw: pointer to hardware structure * @speed: the link speed to force * @autoneg_wait: true when waiting for completion is needed
*/ staticint ixgbe_setup_sgmii_fw(struct ixgbe_hw *hw, ixgbe_link_speed speed, bool autoneg_wait)
{ struct ixgbe_mac_info *mac = &hw->mac;
u32 lval, sval, flx_val; int rc;
rc = mac->ops.read_iosf_sb_reg(hw,
IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, &lval); if (rc) return rc;
/** * ixgbe_fc_autoneg_sgmii_x550em_a - Enable flow control IEEE clause 37 * @hw: pointer to hardware structure * * Enable flow control according to IEEE clause 37.
*/ staticvoid ixgbe_fc_autoneg_sgmii_x550em_a(struct ixgbe_hw *hw)
{
u32 info[FW_PHY_ACT_DATA_COUNT] = { 0 };
ixgbe_link_speed speed; int status = -EIO; bool link_up;
/* AN should have completed when the cable was plugged in. * Look for reasons to bail out. Bail out if: * - FC autoneg is disabled, or if * - link is not up.
*/ if (hw->fc.disable_fc_autoneg) goto out;
hw->mac.ops.check_link(hw, &speed, &link_up, false); if (!link_up) goto out;
/* Check if auto-negotiation has completed */
status = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_LINK_INFO, &info); if (status || !(info[0] & FW_PHY_ACT_GET_LINK_INFO_AN_COMPLETE)) {
status = -EIO; goto out;
}
/* Negotiate the flow control */
status = ixgbe_negotiate_fc(hw, info[0], info[0],
FW_PHY_ACT_GET_LINK_INFO_FC_RX,
FW_PHY_ACT_GET_LINK_INFO_FC_TX,
FW_PHY_ACT_GET_LINK_INFO_LP_FC_RX,
FW_PHY_ACT_GET_LINK_INFO_LP_FC_TX);
/* Link capabilities are based on SFP */ if (hw->phy.multispeed_fiber)
*speed = IXGBE_LINK_SPEED_10GB_FULL |
IXGBE_LINK_SPEED_1GB_FULL; else
*speed = IXGBE_LINK_SPEED_10GB_FULL;
} else { switch (hw->phy.type) { case ixgbe_phy_x550em_kx4:
*speed = IXGBE_LINK_SPEED_1GB_FULL |
IXGBE_LINK_SPEED_2_5GB_FULL |
IXGBE_LINK_SPEED_10GB_FULL; break; case ixgbe_phy_x550em_xfi:
*speed = IXGBE_LINK_SPEED_1GB_FULL |
IXGBE_LINK_SPEED_10GB_FULL; break; case ixgbe_phy_ext_1g_t: case ixgbe_phy_sgmii:
*speed = IXGBE_LINK_SPEED_1GB_FULL; break; case ixgbe_phy_x550em_kr: if (hw->mac.type == ixgbe_mac_x550em_a) { /* check different backplane modes */ if (hw->phy.nw_mng_if_sel &
IXGBE_NW_MNG_IF_SEL_PHY_SPEED_2_5G) {
*speed = IXGBE_LINK_SPEED_2_5GB_FULL; break;
} elseif (hw->device_id ==
IXGBE_DEV_ID_X550EM_A_KR_L) {
*speed = IXGBE_LINK_SPEED_1GB_FULL; break;
}
}
fallthrough; default:
*speed = IXGBE_LINK_SPEED_10GB_FULL |
IXGBE_LINK_SPEED_1GB_FULL; break;
}
*autoneg = true;
} return 0;
}
/** * ixgbe_get_lasi_ext_t_x550em - Determime external Base T PHY interrupt cause * @hw: pointer to hardware structure * @lsc: pointer to boolean flag which indicates whether external Base T * PHY interrupt is lsc * @is_overtemp: indicate whether an overtemp event encountered * * Determine if external Base T PHY interrupt cause is high temperature * failure alarm or link status change.
**/ staticint ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc, bool *is_overtemp)
{
u32 status;
u16 reg;
if (status || !(reg & IXGBE_MDIO_GLOBAL_VEN_ALM_INT_EN)) return status;
/* Vendor Auto-Neg alarm triggered or Global alarm 1 triggered */
status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_VEN_FLAG,
MDIO_MMD_VEND1,
®);
if (status || !(reg & (IXGBE_MDIO_GLOBAL_AN_VEN_ALM_INT_EN |
IXGBE_MDIO_GLOBAL_ALARM_1_INT))) return status;
/* Global alarm triggered */
status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_ALARM_1,
MDIO_MMD_VEND1,
®);
if (status) return status;
/* If high temperature failure, then return over temp error and exit */ if (reg & IXGBE_MDIO_GLOBAL_ALM_1_HI_TMP_FAIL) { /* power down the PHY in case the PHY FW didn't already */
ixgbe_set_copper_phy_power(hw, false);
*is_overtemp = true; return -EIO;
} if (reg & IXGBE_MDIO_GLOBAL_ALM_1_DEV_FAULT) { /* device fault alarm triggered */
status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_FAULT_MSG,
MDIO_MMD_VEND1,
®); if (status) return status;
/* if device fault was due to high temp alarm handle and exit */ if (reg == IXGBE_MDIO_GLOBAL_FAULT_MSG_HI_TMP) { /* power down the PHY in case the PHY FW didn't */
ixgbe_set_copper_phy_power(hw, false);
*is_overtemp = true; return -EIO;
}
}
/** * ixgbe_enable_lasi_ext_t_x550em - Enable external Base T PHY interrupts * @hw: pointer to hardware structure * * Enable link status change and temperature failure alarm for the external * Base T PHY * * Returns PHY access status
**/ staticint ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw *hw)
{ bool lsc, overtemp;
u32 status;
u16 reg;
/* Clear interrupt flags */
status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc, &overtemp);
/* Enable link status change alarm */
/* Enable the LASI interrupts on X552 devices to receive notifications * of the link configurations of the external PHY and correspondingly * support the configuration of the internal iXFI link, since iXFI does * not support auto-negotiation. This is not required for X553 devices * having KR support, which performs auto-negotiations and which is used * as the internal link to the external PHY. Hence adding a check here * to avoid enabling LASI interrupts for X553 devices.
*/ if (hw->mac.type != ixgbe_mac_x550em_a) {
status = hw->phy.ops.read_reg(hw,
IXGBE_MDIO_PMA_TX_VEN_LASI_INT_MASK,
MDIO_MMD_AN, ®); if (status) return status;
reg |= IXGBE_MDIO_PMA_TX_VEN_LASI_INT_EN;
status = hw->phy.ops.write_reg(hw,
IXGBE_MDIO_PMA_TX_VEN_LASI_INT_MASK,
MDIO_MMD_AN, reg); if (status) return status;
}
/* Enable high temperature failure and global fault alarms */
status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_MASK,
MDIO_MMD_VEND1,
®); if (status) return status;
status = hw->phy.ops.write_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_VEN_MASK,
MDIO_MMD_VEND1,
reg); if (status) return status;
/* Enable chip-wide vendor alarm */
status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_STD_MASK,
MDIO_MMD_VEND1,
®); if (status) return status;
reg |= IXGBE_MDIO_GLOBAL_VEN_ALM_INT_EN;
status = hw->phy.ops.write_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_STD_MASK,
MDIO_MMD_VEND1,
reg);
return status;
}
/** * ixgbe_handle_lasi_ext_t_x550em - Handle external Base T PHY interrupt * @hw: pointer to hardware structure * @is_overtemp: indicate whether an overtemp event encountered * * Handle external Base T PHY interrupt. If high temperature * failure alarm then return error, else if link status change * then setup internal/external PHY link
**/ staticint ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *is_overtemp)
{ struct ixgbe_phy_info *phy = &hw->phy; bool lsc;
u32 status;
status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc, is_overtemp); if (status) return status;
if (lsc && phy->ops.setup_internal_link) return phy->ops.setup_internal_link(hw);
return 0;
}
/** * ixgbe_setup_kr_speed_x550em - Configure the KR PHY for link speed. * @hw: pointer to hardware structure * @speed: link speed * * Configures the integrated KR PHY.
**/ staticint ixgbe_setup_kr_speed_x550em(struct ixgbe_hw *hw,
ixgbe_link_speed speed)
{
u32 reg_val; int status;
status = hw->mac.ops.read_iosf_sb_reg(hw,
IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val); if (status) return status;
status = hw->mac.ops.write_iosf_sb_reg(hw,
IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
if (hw->mac.type == ixgbe_mac_x550em_a) { /* Set lane mode to KR auto negotiation */
status = hw->mac.ops.read_iosf_sb_reg(hw,
IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
/** ixgbe_ext_phy_t_x550em_get_link - Get ext phy link status * @hw: address of hardware structure * @link_up: address of boolean to indicate link status * * Returns error code if unable to get link status.
**/ staticint ixgbe_ext_phy_t_x550em_get_link(struct ixgbe_hw *hw, bool *link_up)
{
u32 ret;
u16 autoneg_status;
*link_up = false;
/* read this twice back to back to indicate current status */
ret = hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN,
&autoneg_status); if (ret) return ret;
ret = hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN,
&autoneg_status); if (ret) return ret;
/** ixgbe_setup_internal_phy_t_x550em - Configure KR PHY to X557 link * @hw: point to hardware structure * * Configures the link between the integrated KR PHY and the external X557 PHY * The driver will call this function when it gets a link status change * interrupt from the X557 PHY. This function configures the link speed * between the PHYs to match the link speed of the BASE-T link. * * A return of a non-zero value indicates an error, and the base driver should * not report link up.
**/ staticint ixgbe_setup_internal_phy_t_x550em(struct ixgbe_hw *hw)
{
ixgbe_link_speed force_speed; bool link_up;
u32 status;
u16 speed;
if (hw->mac.ops.get_media_type(hw) != ixgbe_media_type_copper) return -EIO;
/** ixgbe_reset_phy_t_X550em - Performs X557 PHY reset and enables LASI * @hw: pointer to hardware structure
**/ staticint ixgbe_reset_phy_t_X550em(struct ixgbe_hw *hw)
{ int status;
status = ixgbe_reset_phy_generic(hw);
if (status) return status;
/* Configure Link Status Alarm and Temperature Threshold interrupts */ return ixgbe_enable_lasi_ext_t_x550em(hw);
}
/** * ixgbe_led_on_t_x550em - Turns on the software controllable LEDs. * @hw: pointer to hardware structure * @led_idx: led number to turn on
**/ staticint ixgbe_led_on_t_x550em(struct ixgbe_hw *hw, u32 led_idx)
{
u16 phy_data;
if (led_idx >= IXGBE_X557_MAX_LED_INDEX) return -EINVAL;
/* To turn on the LED, set mode to ON. */
hw->phy.ops.read_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
MDIO_MMD_VEND1, &phy_data);
phy_data |= IXGBE_X557_LED_MANUAL_SET_MASK;
hw->phy.ops.write_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
MDIO_MMD_VEND1, phy_data);
return 0;
}
/** * ixgbe_led_off_t_x550em - Turns off the software controllable LEDs. * @hw: pointer to hardware structure * @led_idx: led number to turn off
**/ staticint ixgbe_led_off_t_x550em(struct ixgbe_hw *hw, u32 led_idx)
{
u16 phy_data;
if (led_idx >= IXGBE_X557_MAX_LED_INDEX) return -EINVAL;
/* To turn on the LED, set mode to ON. */
hw->phy.ops.read_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
MDIO_MMD_VEND1, &phy_data);
phy_data &= ~IXGBE_X557_LED_MANUAL_SET_MASK;
hw->phy.ops.write_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
MDIO_MMD_VEND1, phy_data);
return 0;
}
/** * ixgbe_set_fw_drv_ver_x550 - Sends driver version to firmware * @hw: pointer to the HW structure * @maj: driver version major number * @min: driver version minor number * @build: driver version build number * @sub: driver version sub build number * @len: length of driver_ver string * @driver_ver: driver string * * Sends driver version number to firmware through the manageability * block. On success return 0 * else returns -EBUSY when encountering an error acquiring * semaphore, -EIO when command fails or -EINVAL when incorrect * params passed.
**/ int ixgbe_set_fw_drv_ver_x550(struct ixgbe_hw *hw, u8 maj, u8 min,
u8 build, u8 sub, u16 len, constchar *driver_ver)
{ struct ixgbe_hic_drv_info2 fw_cmd; int ret_val; int i;
if (!len || !driver_ver || (len > sizeof(fw_cmd.driver_string))) return -EINVAL;
for (i = 0; i <= FW_CEM_MAX_RETRIES; i++) {
ret_val = ixgbe_host_interface_command(hw, (u32 *)&fw_cmd, sizeof(fw_cmd),
IXGBE_HI_COMMAND_TIMEOUT, true); if (ret_val) continue;
if (fw_cmd.hdr.cmd_or_resp.ret_status !=
FW_CEM_RESP_STATUS_SUCCESS) return -EIO; return 0;
}
return ret_val;
}
/** ixgbe_get_lcd_x550em - Determine lowest common denominator * @hw: pointer to hardware structure * @lcd_speed: pointer to lowest common link speed * * Determine lowest common link speed with link partner.
**/ staticint ixgbe_get_lcd_t_x550em(struct ixgbe_hw *hw,
ixgbe_link_speed *lcd_speed)
{
u16 word = hw->eeprom.ctrl_word_3;
u16 an_lp_status; int status;
*lcd_speed = IXGBE_LINK_SPEED_UNKNOWN;
status = hw->phy.ops.read_reg(hw, IXGBE_AUTO_NEG_LP_STATUS,
MDIO_MMD_AN,
&an_lp_status); if (status) return status;
/* If link partner advertised 1G, return 1G */ if (an_lp_status & IXGBE_AUTO_NEG_LP_1000BASE_CAP) {
*lcd_speed = IXGBE_LINK_SPEED_1GB_FULL; return 0;
}
/* If 10G disabled for LPLU via NVM D10GMP, then return no valid LCD */ if ((hw->bus.lan_id && (word & NVM_INIT_CTRL_3_D10GMP_PORT1)) ||
(word & NVM_INIT_CTRL_3_D10GMP_PORT0)) return 0;
/* Link partner not capable of lower speeds, return 10G */
*lcd_speed = IXGBE_LINK_SPEED_10GB_FULL; return 0;
}
/** * ixgbe_setup_fc_x550em - Set up flow control * @hw: pointer to hardware structure
*/ staticint ixgbe_setup_fc_x550em(struct ixgbe_hw *hw)
{ bool pause, asm_dir;
u32 reg_val; int rc = 0;
/* Validate the requested mode */ if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
hw_err(hw, "ixgbe_fc_rx_pause not valid in strict IEEE mode\n"); return -EINVAL;
}
/* 10gig parts do not have a word in the EEPROM to determine the * default flow control setting, so we explicitly set it to full.
*/ if (hw->fc.requested_mode == ixgbe_fc_default)
hw->fc.requested_mode = ixgbe_fc_full;
/* Determine PAUSE and ASM_DIR bits. */ switch (hw->fc.requested_mode) { case ixgbe_fc_none:
pause = false;
asm_dir = false; break; case ixgbe_fc_tx_pause:
pause = false;
asm_dir = true; break; case ixgbe_fc_rx_pause: /* Rx Flow control is enabled and Tx Flow control is * disabled by software override. Since there really * isn't a way to advertise that we are capable of RX * Pause ONLY, we will advertise that we support both * symmetric and asymmetric Rx PAUSE, as such we fall * through to the fc_full statement. Later, we will * disable the adapter's ability to send PAUSE frames.
*/
fallthrough; case ixgbe_fc_full:
pause = true;
asm_dir = true; break; default:
hw_err(hw, "Flow control param set incorrectly\n"); return -EIO;
}
switch (hw->device_id) { case IXGBE_DEV_ID_X550EM_X_KR: case IXGBE_DEV_ID_X550EM_A_KR: case IXGBE_DEV_ID_X550EM_A_KR_L:
rc = hw->mac.ops.read_iosf_sb_reg(hw,
IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY,
®_val); if (rc) return rc;
/* This device does not fully support AN. */
hw->fc.disable_fc_autoneg = true; break; case IXGBE_DEV_ID_X550EM_X_XFI:
hw->fc.disable_fc_autoneg = true; break; default: break;
} return rc;
}
/** * ixgbe_fc_autoneg_backplane_x550em_a - Enable flow control IEEE clause 37 * @hw: pointer to hardware structure
**/ staticvoid ixgbe_fc_autoneg_backplane_x550em_a(struct ixgbe_hw *hw)
{
u32 link_s1, lp_an_page_low, an_cntl_1;
ixgbe_link_speed speed; int status = -EIO; bool link_up;
/* AN should have completed when the cable was plugged in. * Look for reasons to bail out. Bail out if: * - FC autoneg is disabled, or if * - link is not up.
*/ if (hw->fc.disable_fc_autoneg) {
hw_err(hw, "Flow control autoneg is disabled"); goto out;
}
hw->mac.ops.check_link(hw, &speed, &link_up, false); if (!link_up) {
hw_err(hw, "The link is down"); goto out;
}
/* Check at auto-negotiation has completed */
status = hw->mac.ops.read_iosf_sb_reg(hw,
IXGBE_KRM_LINK_S1(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, &link_s1);
if (status || (link_s1 & IXGBE_KRM_LINK_S1_MAC_AN_COMPLETE) == 0) {
hw_dbg(hw, "Auto-Negotiation did not complete\n");
status = -EIO; goto out;
}
/* Read the 10g AN autoc and LP ability registers and resolve * local flow control settings accordingly
*/
status = hw->mac.ops.read_iosf_sb_reg(hw,
IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, &an_cntl_1);
if (status) {
hw_dbg(hw, "Auto-Negotiation did not complete\n"); goto out;
}
status = hw->mac.ops.read_iosf_sb_reg(hw,
IXGBE_KRM_LP_BASE_PAGE_HIGH(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, &lp_an_page_low);
if (status) {
hw_dbg(hw, "Auto-Negotiation did not complete\n"); goto out;
}
status = ixgbe_negotiate_fc(hw, an_cntl_1, lp_an_page_low,
IXGBE_KRM_AN_CNTL_1_SYM_PAUSE,
IXGBE_KRM_AN_CNTL_1_ASM_PAUSE,
IXGBE_KRM_LP_BASE_PAGE_HIGH_SYM_PAUSE,
IXGBE_KRM_LP_BASE_PAGE_HIGH_ASM_PAUSE);
/** ixgbe_enter_lplu_x550em - Transition to low power states * @hw: pointer to hardware structure * * Configures Low Power Link Up on transition to low power states * (from D0 to non-D0). Link is required to enter LPLU so avoid resetting * the X557 PHY immediately prior to entering LPLU.
**/ staticint ixgbe_enter_lplu_t_x550em(struct ixgbe_hw *hw)
{
u16 an_10g_cntl_reg, autoneg_reg, speed;
ixgbe_link_speed lcd_speed;
u32 save_autoneg; bool link_up; int status;
/* If blocked by MNG FW, then don't restart AN */ if (ixgbe_check_reset_blocked(hw)) return 0;
status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up); if (status) return status;
status = hw->eeprom.ops.read(hw, NVM_INIT_CTRL_3,
&hw->eeprom.ctrl_word_3); if (status) return status;
/* If link is down, LPLU disabled in NVM, WoL disabled, or * manageability disabled, then force link down by entering * low power mode.
*/ if (!link_up || !(hw->eeprom.ctrl_word_3 & NVM_INIT_CTRL_3_LPLU) ||
!(hw->wol_enabled || ixgbe_mng_present(hw))) return ixgbe_set_copper_phy_power(hw, false);
/* Determine LCD */
status = ixgbe_get_lcd_t_x550em(hw, &lcd_speed); if (status) return status;
/* If no valid LCD link speed, then force link down and exit. */ if (lcd_speed == IXGBE_LINK_SPEED_UNKNOWN) return ixgbe_set_copper_phy_power(hw, false);
status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_STAT,
MDIO_MMD_AN,
&speed); if (status) return status;
/* If no link now, speed is invalid so take link down */
status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up); if (status) return ixgbe_set_copper_phy_power(hw, false);
/* clear everything but the speed bits */
speed &= IXGBE_MDIO_AUTO_NEG_VEN_STAT_SPEED_MASK;
/* If current speed is already LCD, then exit. */ if (((speed == IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_1GB) &&
(lcd_speed == IXGBE_LINK_SPEED_1GB_FULL)) ||
((speed == IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_10GB) &&
(lcd_speed == IXGBE_LINK_SPEED_10GB_FULL))) return 0;
/* Clear AN completed indication */
status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_TX_ALARM,
MDIO_MMD_AN,
&autoneg_reg); if (status) return status;
status = hw->phy.ops.read_reg(hw, MDIO_AN_10GBT_CTRL,
MDIO_MMD_AN,
&an_10g_cntl_reg); if (status) return status;
status = hw->phy.ops.read_reg(hw,
IXGBE_MII_AUTONEG_VENDOR_PROVISION_1_REG,
MDIO_MMD_AN,
&autoneg_reg); if (status) return status;
save_autoneg = hw->phy.autoneg_advertised;
/* Setup link at least common link speed */
status = hw->mac.ops.setup_link(hw, lcd_speed, false);
/* restore autoneg from before setting lplu speed */
hw->phy.autoneg_advertised = save_autoneg;
rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_INIT_PHY, &store); if (rc) return rc;
return ixgbe_setup_fw_link(hw);
}
/** * ixgbe_check_overtemp_fw - Check firmware-controlled PHYs for overtemp * @hw: pointer to hardware structure * * Return true when an overtemp event detected, otherwise false.
*/ staticbool ixgbe_check_overtemp_fw(struct ixgbe_hw *hw)
{
u32 store[FW_PHY_ACT_DATA_COUNT] = { 0 }; int rc;
rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_LINK_INFO, &store); if (rc) returnfalse;
if (store[0] & FW_PHY_ACT_GET_LINK_INFO_TEMP) {
ixgbe_shutdown_fw_phy(hw); returntrue;
} returnfalse;
}
/** * ixgbe_read_mng_if_sel_x550em - Read NW_MNG_IF_SEL register * @hw: pointer to hardware structure * * Read NW_MNG_IF_SEL register and save field values.
*/ staticvoid ixgbe_read_mng_if_sel_x550em(struct ixgbe_hw *hw)
{ /* Save NW management interface connected on board. This is used * to determine internal PHY mode.
*/
hw->phy.nw_mng_if_sel = IXGBE_READ_REG(hw, IXGBE_NW_MNG_IF_SEL);
/* If X552 (X550EM_a) and MDIO is connected to external PHY, then set * PHY address. This register field has only been used for X552.
*/ if (hw->mac.type == ixgbe_mac_x550em_a &&
hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_MDIO_ACT) {
hw->phy.mdio.prtad = FIELD_GET(IXGBE_NW_MNG_IF_SEL_MDIO_PHY_ADD,
hw->phy.nw_mng_if_sel);
}
}
/** ixgbe_init_phy_ops_X550em - PHY/SFP specific init * @hw: pointer to hardware structure * * Initialize any function pointers that were not able to be * set during init_shared_code because the PHY/SFP type was * not known. Perform the SFP init if necessary.
**/ staticint ixgbe_init_phy_ops_X550em(struct ixgbe_hw *hw)
{ struct ixgbe_phy_info *phy = &hw->phy; int ret_val;
hw->mac.ops.set_lan_id(hw);
ixgbe_read_mng_if_sel_x550em(hw);
if (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_fiber) {
phy->phy_semaphore_mask = IXGBE_GSSR_SHARED_I2C_SM;
ixgbe_setup_mux_ctl(hw);
}
/* Identify the PHY or SFP module */
ret_val = phy->ops.identify(hw); if (ret_val == -EOPNOTSUPP || ret_val == -EFAULT) return ret_val;
/* Setup function pointers based on detected hardware */
ixgbe_init_mac_link_ops_X550em(hw); if (phy->sfp_type != ixgbe_sfp_type_unknown)
phy->ops.reset = NULL;
/* Set functions pointers based on phy type */ switch (hw->phy.type) { case ixgbe_phy_x550em_kx4:
phy->ops.setup_link = NULL;
phy->ops.read_reg = ixgbe_read_phy_reg_x550em;
phy->ops.write_reg = ixgbe_write_phy_reg_x550em; break; case ixgbe_phy_x550em_kr:
phy->ops.setup_link = ixgbe_setup_kr_x550em;
phy->ops.read_reg = ixgbe_read_phy_reg_x550em;
phy->ops.write_reg = ixgbe_write_phy_reg_x550em; break; case ixgbe_phy_x550em_xfi: /* link is managed by HW */
phy->ops.setup_link = NULL;
phy->ops.read_reg = ixgbe_read_phy_reg_x550em;
phy->ops.write_reg = ixgbe_write_phy_reg_x550em; break; case ixgbe_phy_x550em_ext_t: /* Save NW management interface connected on board. This is used * to determine internal PHY mode
*/
phy->nw_mng_if_sel = IXGBE_READ_REG(hw, IXGBE_NW_MNG_IF_SEL);
/* If internal link mode is XFI, then setup iXFI internal link, * else setup KR now.
*/
phy->ops.setup_internal_link =
ixgbe_setup_internal_phy_t_x550em;
/* setup SW LPLU only for first revision */ if (hw->mac.type == ixgbe_mac_X550EM_x &&
!(IXGBE_READ_REG(hw, IXGBE_FUSES0_GROUP(0)) &
IXGBE_FUSES0_REV_MASK))
phy->ops.enter_lplu = ixgbe_enter_lplu_t_x550em;
/** ixgbe_get_media_type_X550em - Get media type * @hw: pointer to hardware structure * * Returns the media type (fiber, copper, backplane) *
*/ staticenum ixgbe_media_type ixgbe_get_media_type_X550em(struct ixgbe_hw *hw)
{ enum ixgbe_media_type media_type;
/* Detect if there is a copper PHY attached. */ switch (hw->device_id) { case IXGBE_DEV_ID_X550EM_A_SGMII: case IXGBE_DEV_ID_X550EM_A_SGMII_L:
hw->phy.type = ixgbe_phy_sgmii;
fallthrough; case IXGBE_DEV_ID_X550EM_X_KR: case IXGBE_DEV_ID_X550EM_X_KX4: case IXGBE_DEV_ID_X550EM_X_XFI: case IXGBE_DEV_ID_X550EM_A_KR: case IXGBE_DEV_ID_X550EM_A_KR_L:
media_type = ixgbe_media_type_backplane; break; case IXGBE_DEV_ID_X550EM_X_SFP: case IXGBE_DEV_ID_X550EM_A_SFP: case IXGBE_DEV_ID_X550EM_A_SFP_N:
media_type = ixgbe_media_type_fiber; break; case IXGBE_DEV_ID_X550EM_X_1G_T: case IXGBE_DEV_ID_X550EM_X_10G_T: case IXGBE_DEV_ID_X550EM_A_10G_T: case IXGBE_DEV_ID_X550EM_A_1G_T: case IXGBE_DEV_ID_X550EM_A_1G_T_L:
media_type = ixgbe_media_type_copper; break; default:
media_type = ixgbe_media_type_unknown; break;
} return media_type;
}
/** ixgbe_init_ext_t_x550em - Start (uninstall) the external Base T PHY. ** @hw: pointer to hardware structure
**/ staticint ixgbe_init_ext_t_x550em(struct ixgbe_hw *hw)
{ int status;
u16 reg;
status = hw->phy.ops.read_reg(hw,
IXGBE_MDIO_TX_VENDOR_ALARMS_3,
MDIO_MMD_PMAPMD,
®); if (status) return status;
/* If PHY FW reset completed bit is set then this is the first * SW instance after a power on so the PHY FW must be un-stalled.
*/ if (reg & IXGBE_MDIO_TX_VENDOR_ALARMS_3_RST_MASK) {
status = hw->phy.ops.read_reg(hw,
IXGBE_MDIO_GLOBAL_RES_PR_10,
MDIO_MMD_VEND1,
®); if (status) return status;
reg &= ~IXGBE_MDIO_POWER_UP_STALL;
status = hw->phy.ops.write_reg(hw,
IXGBE_MDIO_GLOBAL_RES_PR_10,
MDIO_MMD_VEND1,
reg); if (status) return status;
}
switch (hw->device_id) { case IXGBE_DEV_ID_X550EM_X_10G_T: case IXGBE_DEV_ID_X550EM_A_SGMII: case IXGBE_DEV_ID_X550EM_A_SGMII_L: case IXGBE_DEV_ID_X550EM_A_10G_T: case IXGBE_DEV_ID_X550EM_A_SFP: /* Config MDIO clock speed before the first MDIO PHY access */
hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0);
hlreg0 &= ~IXGBE_HLREG0_MDCSPD;
IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0); break; case IXGBE_DEV_ID_X550EM_A_1G_T: case IXGBE_DEV_ID_X550EM_A_1G_T_L: /* Select fast MDIO clock speed for these devices */
hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0);
hlreg0 |= IXGBE_HLREG0_MDCSPD;
IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0); break; default: break;
}
}
/** ixgbe_reset_hw_X550em - Perform hardware reset ** @hw: pointer to hardware structure ** ** Resets the hardware by resetting the transmit and receive units, masks ** and clears all interrupts, perform a PHY reset, and perform a link (MAC) ** reset.
**/ staticint ixgbe_reset_hw_X550em(struct ixgbe_hw *hw)
{
u32 swfw_mask = hw->phy.phy_semaphore_mask;
ixgbe_link_speed link_speed; bool link_up = false;
u32 ctrl = 0; int status;
u32 i;
/* Call adapter stop to disable Tx/Rx and clear interrupts */
status = hw->mac.ops.stop_adapter(hw); if (status) return status;
/* set MDIO speed before talking to the PHY in case it's the 1st time */
ixgbe_set_mdio_speed(hw);
/* PHY ops must be identified and initialized prior to reset */
status = hw->phy.ops.init(hw); if (status == -EOPNOTSUPP || status == -EFAULT) return status;
/* start the external PHY */ if (hw->phy.type == ixgbe_phy_x550em_ext_t) {
status = ixgbe_init_ext_t_x550em(hw); if (status) return status;
}
/* Setup SFP module if there is one present. */ if (hw->phy.sfp_setup_needed) {
status = hw->mac.ops.setup_sfp(hw);
hw->phy.sfp_setup_needed = false;
}
if (status == -EOPNOTSUPP) return status;
/* Reset PHY */ if (!hw->phy.reset_disable && hw->phy.ops.reset)
hw->phy.ops.reset(hw);
mac_reset_top: /* Issue global reset to the MAC. Needs to be SW reset if link is up. * If link reset is used when link is up, it might reset the PHY when * mng is using it. If link is down or the flag to force full link * reset is set, then perform link reset.
*/
ctrl = IXGBE_CTRL_LNK_RST;
if (!hw->force_full_reset) {
hw->mac.ops.check_link(hw, &link_speed, &link_up, false); if (link_up)
ctrl = IXGBE_CTRL_RST;
}
status = hw->mac.ops.acquire_swfw_sync(hw, swfw_mask); if (status) {
hw_dbg(hw, "semaphore failed with %d", status); return -EBUSY;
}
/* Poll for reset bit to self-clear meaning reset is complete */ for (i = 0; i < 10; i++) {
ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL); if (!(ctrl & IXGBE_CTRL_RST_MASK)) break;
udelay(1);
}
if (ctrl & IXGBE_CTRL_RST_MASK) {
status = -EIO;
hw_dbg(hw, "Reset polling failed to complete.\n");
}
msleep(50);
/* Double resets are required for recovery from certain error * clear the multicast table. Also reset num_rar_entries to 128, * since we modify this value when programming the SAN MAC address.
*/ if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED; goto mac_reset_top;
}
/* Store the permanent mac address */
hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
/* Store MAC address from RAR0, clear receive address registers, and * clear the multicast table. Also reset num_rar_entries to 128, * since we modify this value when programming the SAN MAC address.
*/
hw->mac.num_rar_entries = 128;
hw->mac.ops.init_rx_addrs(hw);
ixgbe_set_mdio_speed(hw);
if (hw->device_id == IXGBE_DEV_ID_X550EM_X_SFP)
ixgbe_setup_mux_ctl(hw);
return status;
}
/** ixgbe_set_ethertype_anti_spoofing_x550 - Enable/Disable Ethertype * anti-spoofing * @hw: pointer to hardware structure * @enable: enable or disable switch for Ethertype anti-spoofing * @vf: Virtual Function pool - VF Pool to set for Ethertype anti-spoofing
**/ void ixgbe_set_ethertype_anti_spoofing_x550(struct ixgbe_hw *hw, bool enable, int vf)
{ int vf_target_reg = vf >> 3; int vf_target_shift = vf % 8 + IXGBE_SPOOF_ETHERTYPEAS_SHIFT;
u32 pfvfspoof;
/** * ixgbe_setup_fc_backplane_x550em_a - Set up flow control * @hw: pointer to hardware structure * * Called at init time to set up flow control.
**/ staticint ixgbe_setup_fc_backplane_x550em_a(struct ixgbe_hw *hw)
{
u32 an_cntl = 0; int status = 0;
/* Validate the requested mode */ if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
hw_err(hw, "ixgbe_fc_rx_pause not valid in strict IEEE mode\n"); return -EINVAL;
}
if (hw->fc.requested_mode == ixgbe_fc_default)
hw->fc.requested_mode = ixgbe_fc_full;
/* Set up the 1G and 10G flow control advertisement registers so the * HW will be able to do FC autoneg once the cable is plugged in. If * we link at 10G, the 1G advertisement is harmless and vice versa.
*/
status = hw->mac.ops.read_iosf_sb_reg(hw,
IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, &an_cntl);
if (status) {
hw_dbg(hw, "Auto-Negotiation did not complete\n"); return status;
}
/* The possible values of fc.requested_mode are: * 0: Flow control is completely disabled * 1: Rx flow control is enabled (we can receive pause frames, * but not send pause frames). * 2: Tx flow control is enabled (we can send pause frames but * we do not support receiving pause frames). * 3: Both Rx and Tx flow control (symmetric) are enabled. * other: Invalid.
*/ switch (hw->fc.requested_mode) { case ixgbe_fc_none: /* Flow control completely disabled by software override. */
an_cntl &= ~(IXGBE_KRM_AN_CNTL_1_SYM_PAUSE |
IXGBE_KRM_AN_CNTL_1_ASM_PAUSE); break; case ixgbe_fc_tx_pause: /* Tx Flow control is enabled, and Rx Flow control is * disabled by software override.
*/
an_cntl |= IXGBE_KRM_AN_CNTL_1_ASM_PAUSE;
an_cntl &= ~IXGBE_KRM_AN_CNTL_1_SYM_PAUSE; break; case ixgbe_fc_rx_pause: /* Rx Flow control is enabled and Tx Flow control is * disabled by software override. Since there really * isn't a way to advertise that we are capable of RX * Pause ONLY, we will advertise that we support both * symmetric and asymmetric Rx PAUSE, as such we fall * through to the fc_full statement. Later, we will * disable the adapter's ability to send PAUSE frames.
*/ case ixgbe_fc_full: /* Flow control (both Rx and Tx) is enabled by SW override. */
an_cntl |= IXGBE_KRM_AN_CNTL_1_SYM_PAUSE |
IXGBE_KRM_AN_CNTL_1_ASM_PAUSE; break; default:
hw_err(hw, "Flow control param set incorrectly\n"); return -EIO;
}
status = hw->mac.ops.write_iosf_sb_reg(hw,
IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id),
IXGBE_SB_IOSF_TARGET_KR_PHY, an_cntl);
/* Restart auto-negotiation. */
status = ixgbe_restart_an_internal_phy_x550em(hw);
return status;
}
/** * ixgbe_set_mux - Set mux for port 1 access with CS4227 * @hw: pointer to hardware structure * @state: set mux if 1, clear if 0
*/ staticvoid ixgbe_set_mux(struct ixgbe_hw *hw, u8 state)
{
u32 esdp;
/** * ixgbe_acquire_swfw_sync_X550em - Acquire SWFW semaphore * @hw: pointer to hardware structure * @mask: Mask to specify which semaphore to acquire * * Acquires the SWFW semaphore and sets the I2C MUX
*/ staticint ixgbe_acquire_swfw_sync_X550em(struct ixgbe_hw *hw, u32 mask)
{ int status;
status = ixgbe_acquire_swfw_sync_X540(hw, mask); if (status) return status;
if (mask & IXGBE_GSSR_I2C_MASK)
ixgbe_set_mux(hw, 1);
return 0;
}
/** * ixgbe_release_swfw_sync_X550em - Release SWFW semaphore * @hw: pointer to hardware structure * @mask: Mask to specify which semaphore to release * * Releases the SWFW semaphore and sets the I2C MUX
*/ staticvoid ixgbe_release_swfw_sync_X550em(struct ixgbe_hw *hw, u32 mask)
{ if (mask & IXGBE_GSSR_I2C_MASK)
ixgbe_set_mux(hw, 0);
ixgbe_release_swfw_sync_X540(hw, mask);
}
/** * ixgbe_acquire_swfw_sync_x550em_a - Acquire SWFW semaphore * @hw: pointer to hardware structure * @mask: Mask to specify which semaphore to acquire * * Acquires the SWFW semaphore and get the shared PHY token as needed
*/ staticint ixgbe_acquire_swfw_sync_x550em_a(struct ixgbe_hw *hw, u32 mask)
{
u32 hmask = mask & ~IXGBE_GSSR_TOKEN_SM; int retries = FW_PHY_TOKEN_RETRIES; int status;
while (--retries) {
status = 0; if (hmask)
status = ixgbe_acquire_swfw_sync_X540(hw, hmask); if (status) return status; if (!(mask & IXGBE_GSSR_TOKEN_SM)) return 0;
status = ixgbe_get_phy_token(hw); if (!status) return 0; if (hmask)
ixgbe_release_swfw_sync_X540(hw, hmask); if (status != -EAGAIN) return status;
msleep(FW_PHY_TOKEN_DELAY);
}
return status;
}
/** * ixgbe_release_swfw_sync_x550em_a - Release SWFW semaphore * @hw: pointer to hardware structure * @mask: Mask to specify which semaphore to release * * Release the SWFW semaphore and puts back the shared PHY token as needed
*/ staticvoid ixgbe_release_swfw_sync_x550em_a(struct ixgbe_hw *hw, u32 mask)
{
u32 hmask = mask & ~IXGBE_GSSR_TOKEN_SM;
if (mask & IXGBE_GSSR_TOKEN_SM)
ixgbe_put_phy_token(hw);
if (hmask)
ixgbe_release_swfw_sync_X540(hw, hmask);
}
/** * ixgbe_read_phy_reg_x550a - Reads specified PHY register * @hw: pointer to hardware structure * @reg_addr: 32 bit address of PHY register to read * @device_type: 5 bit device type * @phy_data: Pointer to read data from PHY register * * Reads a value from a specified PHY register using the SWFW lock and PHY * Token. The PHY Token is needed since the MDIO is shared between two MAC * instances.
*/ staticint ixgbe_read_phy_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
u32 device_type, u16 *phy_data)
{
u32 mask = hw->phy.phy_semaphore_mask | IXGBE_GSSR_TOKEN_SM; int status;
if (hw->mac.ops.acquire_swfw_sync(hw, mask)) return -EBUSY;
status = hw->phy.ops.read_reg_mdi(hw, reg_addr, device_type, phy_data);
hw->mac.ops.release_swfw_sync(hw, mask);
return status;
}
/** * ixgbe_write_phy_reg_x550a - Writes specified PHY register * @hw: pointer to hardware structure * @reg_addr: 32 bit PHY register to write * @device_type: 5 bit device type * @phy_data: Data to write to the PHY register * * Writes a value to specified PHY register using the SWFW lock and PHY Token. * The PHY Token is needed since the MDIO is shared between to MAC instances.
*/ staticint ixgbe_write_phy_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
u32 device_type, u16 phy_data)
{
u32 mask = hw->phy.phy_semaphore_mask | IXGBE_GSSR_TOKEN_SM; int status;
if (hw->mac.ops.acquire_swfw_sync(hw, mask)) return -EBUSY;
status = ixgbe_write_phy_reg_mdi(hw, reg_addr, device_type, phy_data);
hw->mac.ops.release_swfw_sync(hw, mask);
/* Release vf's queues by clearing WQBR_TX and WQBR_RX (RW1C) */
idx = start_q / IXGBE_QUEUES_PER_REG;
val = bitmask << (start_q % IXGBE_QUEUES_PER_REG);
IXGBE_WRITE_REG(hw, IXGBE_WQBR_TX(idx), val);
IXGBE_WRITE_REG(hw, IXGBE_WQBR_RX(idx), val);
}
/** * ixgbe_handle_mdd_x550 - handle malicious driver detection event * @hw: pointer to hardware structure * @vf_bitmap: output vf bitmap of malicious vfs
*/ void ixgbe_handle_mdd_x550(struct ixgbe_hw *hw, unsignedlong *vf_bitmap)
{
u32 i, j, reg, q, div, vf; unsignedlong wqbr;
/* figure out pool size for mapping to vf's */
reg = IXGBE_READ_REG(hw, IXGBE_MRQC); switch (reg & IXGBE_MRQC_MRQE_MASK) { case IXGBE_MRQC_VMDQRT8TCEN:
div = IXGBE_16VFS_QUEUES; break; case IXGBE_MRQC_VMDQRSS32EN: case IXGBE_MRQC_VMDQRT4TCEN:
div = IXGBE_32VFS_QUEUES; break; default:
div = IXGBE_64VFS_QUEUES; break;
}
/* Read WQBR_TX and WQBR_RX and check for malicious queues */ for (i = 0; i < IXGBE_QUEUES_REG_AMOUNT; i++) {
wqbr = IXGBE_READ_REG(hw, IXGBE_WQBR_TX(i)) |
IXGBE_READ_REG(hw, IXGBE_WQBR_RX(i)); if (!wqbr) continue;
/* Get malicious queue */
for_each_set_bit(j, (unsignedlong *)&wqbr,
IXGBE_QUEUES_PER_REG) { /* Get queue from bitmask */
q = j + (i * IXGBE_QUEUES_PER_REG); /* Map queue to vf */
vf = q / div;
set_bit(vf, vf_bitmap);
}
}
}
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