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;
}
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 *otherdriverinstanceiswaitingfortheresetindication.
*/
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);
/* Check every 10 usec to see if the address cycle completed. *TheSBIOSFBUSYbitwillclearwhentheoperationis *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;
}
return0;
}
/** ixgbe_read_iosf_sb_reg_x550 - Reads a value to specified register of the *IOSFdevice *@hw:pointertohardwarestructure *@reg_addr:32bitPHYregistertowrite *@device_type:3bitdevicetype *@phy_data:Pointertoreaddatafromtheregister
**/ 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;
/* 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;
/* Skip pointer section if length is invalid. */ if (length == 0xFFFF || length == 0 ||
(ptr + length) >= hw->eeprom.word_size) return0;
}
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];
} return0;
}
/** ixgbe_calc_checksum_X550 - Calculates and returns the checksum *@hw:pointertohardwarestructure *@buffer:pointertobuffercontainingcalculatedchecksum *@buffer_size:sizeofbuffer * *Returnsanegativeerrorcodeonerror,orthe16-bitchecksum
**/ 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 *checksumworditself
*/ 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,PHYmodule,andPCIeExpansion/OptionROMpointers.
*/ 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;
}
/* 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);
}
/* Read the first word from the EEPROM. If this times out or fails, do *notcontinueorwecouldbeinforaverylongwaitwhileevery *EEPROMreadfails
*/
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 *calculatedchecksum
*/ 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:pointertohardwarestructure *@offset:offsetofwordintheEEPROMtowrite *@data:wordwritetotheEEPROM * *Writea16bitwordtotheEEPROMusingthehostif.
**/ 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:pointertohardwarestructure *@offset:offsetofwordintheEEPROMtowrite *@data:wordwritetotheEEPROM * *Writea16bitwordtotheEEPROMusingthehostif.
**/ 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:pointertohardwarestructure * *IssueashadowRAMdumptoFWtocopyEEPROMfromshadowRAMtotheflash.
**/ staticint ixgbe_update_flash_X550(struct ixgbe_hw *hw)
{ union ixgbe_hic_hdr2 buffer; int status = 0;
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:pointertohardwarestructure * *AfterwritingEEPROMtoshadowRAMusingEEWRregister,softwarecalculates *checksumandupdatestheEEPROMandinstructsthehardwaretoupdate *theflash.
**/ 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 *notcontinueorwecouldbeinforaverylongwaitwhileevery *EEPROMreadfails
*/
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:pointertohardwarestructure *@offset:offsetofwordintheEEPROMtowrite *@words:numberofwords *@data:word(s)writetotheEEPROM * * *Writea16bitword(s)totheEEPROMusingthehostif.
**/ 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;
}
}
/* 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;
/* 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);
}
/* 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-CheckifSFPmoduletypeissupported *@hw:pointertohardwarestructure *@linear:trueifSFPmoduleislinear
*/ 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;
}
/* 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 *thereisnoreasontoconfigureCS4227andSFPnotpresenterroris *notacceptedinthesetupMAClinkflow.
*/ if (status == -ENOENT) return0;
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);
/* 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);
/* 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 *SFPnotpresenterrorisnotacceptedinthesetupMAClinkflow.
*/ if (ret_val == -ENOENT) return0;
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;
/* 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 *SFPnotpresenterrorisnotacceptedinthesetupMAClinkflow.
*/ if (ret_val == -ENOENT) return0;
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 *ofthesliceoffset.
*/ 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;
/* Setup internal/external PHY link speed to iXFI (10G), unless *only1GisautoadvertisedthensetupKXlink.
*/ 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:pointertohardwarestructure *@speed:pointertolinkspeed *@link_up:truewhenlinkisup *@link_up_wait_to_complete:boolusedtowaitforlinkupornot * *CheckthatboththeMACandX557externalPHYhavelink.
**/ 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. *Linkstatusislatchinglow,andcanonlybeusedtodetectlink *drop,andnotthecurrentstatusofthelinkwithoutperforming *back-to-backreads.
*/ 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;
/* AN should have completed when the cable was plugged in. *Lookforreasonstobailout.Bailoutif: *-FCautonegisdisabled,orif *-linkisnotup.
*/ 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);
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;
}
}
/* 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 *ofthelinkconfigurationsoftheexternalPHYandcorrespondingly *supporttheconfigurationoftheinternaliXFIlink,sinceiXFIdoes *notsupportauto-negotiation.ThisisnotrequiredforX553devices *havingKRsupport,whichperformsauto-negotiationsandwhichisused *astheinternallinktotheexternalPHY.Henceaddingacheckhere *toavoidenablingLASIinterruptsforX553devices.
*/ 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->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:addressofhardwarestructure *@link_up:addressofbooleantoindicatelinkstatus * *Returnserrorcodeifunabletogetlinkstatus.
**/ 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;
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);
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);
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; return0;
}
return ret_val;
}
/** ixgbe_get_lcd_x550em - Determine lowest common denominator *@hw:pointertohardwarestructure *@lcd_speed:pointertolowestcommonlinkspeed * *Determinelowestcommonlinkspeedwithlinkpartner.
**/ 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; return0;
}
/* 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)) return0;
/* Link partner not capable of lower speeds, return 10G */
*lcd_speed = IXGBE_LINK_SPEED_10GB_FULL; return0;
}
/* 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 *defaultflowcontrolsetting,soweexplicitlysetittofull.
*/ 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 *disabledbysoftwareoverride.Sincetherereally *isn'tawaytoadvertisethatwearecapableofRX *PauseONLY,wewilladvertisethatwesupportboth *symmetricandasymmetricRxPAUSE,assuchwefall *throughtothefc_fullstatement.Later,wewill *disabletheadapter'sabilitytosendPAUSEframes.
*/
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;
}
/* AN should have completed when the cable was plugged in. *Lookforreasonstobailout.Bailoutif: *-FCautonegisdisabled,orif *-linkisnotup.
*/ 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 *localflowcontrolsettingsaccordingly
*/
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:pointertohardwarestructure * *ConfiguresLowPowerLinkUpontransitiontolowpowerstates *(fromD0tonon-D0).LinkisrequiredtoenterLPLUsoavoidresetting *theX557PHYimmediatelypriortoenteringLPLU.
**/ 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)) return0;
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 *manageabilitydisabled,thenforcelinkdownbyentering *lowpowermode.
*/ 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))) return0;
/* 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_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-ReadNW_MNG_IF_SELregister *@hw:pointertohardwarestructure * *ReadNW_MNG_IF_SELregisterandsavefieldvalues.
*/ staticvoid ixgbe_read_mng_if_sel_x550em(struct ixgbe_hw *hw)
{ /* Save NW management interface connected on board. This is used *todetermineinternalPHYmode.
*/
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 *PHYaddress.ThisregisterfieldhasonlybeenusedforX552.
*/ 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);
}
}
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 *todetermineinternalPHYmode
*/
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, *elsesetupKRnow.
*/
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:pointertohardwarestructure * *Returnsthemediatype(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:pointertohardwarestructure
**/ 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 *SWinstanceafterapoweronsothePHYFWmustbeun-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;
}
}
/* 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. *Iflinkresetisusedwhenlinkisup,itmightresetthePHYwhen *mngisusingit.Iflinkisdownortheflagtoforcefulllink *resetisset,thenperformlinkreset.
*/
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 *clearthemulticasttable.Alsoresetnum_rar_entriesto128, *sincewemodifythisvaluewhenprogrammingtheSANMACaddress.
*/ 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 *clearthemulticasttable.Alsoresetnum_rar_entriesto128, *sincewemodifythisvaluewhenprogrammingtheSANMACaddress.
*/
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);
/** *ixgbe_setup_fc_backplane_x550em_a-Setupflowcontrol *@hw:pointertohardwarestructure * *Calledatinittimetosetupflowcontrol.
**/ 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 *HWwillbeabletodoFCautonegoncethecableispluggedin.If *welinkat10G,the1Gadvertisementisharmlessandviceversa.
*/
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:Flowcontroliscompletelydisabled *1:Rxflowcontrolisenabled(wecanreceivepauseframes, *butnotsendpauseframes). *2:Txflowcontrolisenabled(wecansendpauseframesbut *wedonotsupportreceivingpauseframes). *3:BothRxandTxflowcontrol(symmetric)areenabled. *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 *disabledbysoftwareoverride.
*/
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 *disabledbysoftwareoverride.Sincetherereally *isn'tawaytoadvertisethatwearecapableofRX *PauseONLY,wewilladvertisethatwesupportboth *symmetricandasymmetricRxPAUSE,assuchwefall *throughtothefc_fullstatement.Later,wewill *disabletheadapter'sabilitytosendPAUSEframes.
*/ 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);
while (--retries) {
status = 0; if (hmask)
status = ixgbe_acquire_swfw_sync_X540(hw, hmask); if (status) return status; if (!(mask & IXGBE_GSSR_TOKEN_SM)) return0;
status = ixgbe_get_phy_token(hw); if (!status) return0; if (hmask)
ixgbe_release_swfw_sync_X540(hw, hmask); if (status != -EAGAIN) return status;
msleep(FW_PHY_TOKEN_DELAY);
}
/* 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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