+}
+
+/**
+ * ixgbe_setup_phy_loopback_x550em - Configure the KR PHY for loopback.
+ * @hw: pointer to hardware structure
+ *
+ * Configures the integrated KR PHY to use internal loopback mode.
+ **/
+s32 ixgbe_setup_phy_loopback_x550em(struct ixgbe_hw *hw)
+{
+ s32 status;
+ u32 reg_val;
+
+ /* Disable AN and force speed to 10G Serial. */
+ 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 != IXGBE_SUCCESS)
+ return status;
+ reg_val &= ~IXGBE_KRM_LINK_CTRL_1_TETH_AN_ENABLE;
+ reg_val &= ~IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_MASK;
+ reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_10G;
+ 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 (status != IXGBE_SUCCESS)
+ return status;
+
+ /* Set near-end loopback clocks. */
+ status = hw->mac.ops.read_iosf_sb_reg(hw,
+ IXGBE_KRM_PORT_CAR_GEN_CTRL(hw->bus.lan_id),
+ IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
+ if (status != IXGBE_SUCCESS)
+ return status;
+ reg_val |= IXGBE_KRM_PORT_CAR_GEN_CTRL_NELB_32B;
+ reg_val |= IXGBE_KRM_PORT_CAR_GEN_CTRL_NELB_KRPCS;
+ status = hw->mac.ops.write_iosf_sb_reg(hw,
+ IXGBE_KRM_PORT_CAR_GEN_CTRL(hw->bus.lan_id),
+ IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
+ if (status != IXGBE_SUCCESS)
+ return status;
+
+ /* Set loopback enable. */
+ status = hw->mac.ops.read_iosf_sb_reg(hw,
+ IXGBE_KRM_PMD_DFX_BURNIN(hw->bus.lan_id),
+ IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
+ if (status != IXGBE_SUCCESS)
+ return status;
+ reg_val |= IXGBE_KRM_PMD_DFX_BURNIN_TX_RX_KR_LB_MASK;
+ status = hw->mac.ops.write_iosf_sb_reg(hw,
+ IXGBE_KRM_PMD_DFX_BURNIN(hw->bus.lan_id),
+ IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
+ if (status != IXGBE_SUCCESS)
+ return status;
+
+ /* Training bypass. */
+ status = hw->mac.ops.read_iosf_sb_reg(hw,
+ IXGBE_KRM_RX_TRN_LINKUP_CTRL(hw->bus.lan_id),
+ IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val);
+ if (status != IXGBE_SUCCESS)
+ return status;
+ reg_val |= IXGBE_KRM_RX_TRN_LINKUP_CTRL_PROTOCOL_BYPASS;
+ status = hw->mac.ops.write_iosf_sb_reg(hw,
+ IXGBE_KRM_RX_TRN_LINKUP_CTRL(hw->bus.lan_id),
+ IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val);
+
+ return status;
+}
+
+/**
+ * ixgbe_read_ee_hostif_X550 - Read EEPROM word using a host interface command
+ * assuming that the semaphore is already obtained.
+ * @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.
+ **/
+s32 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;
+ s32 status;
+
+ DEBUGFUNC("ixgbe_read_ee_hostif_X550");
+ buffer.hdr.req.cmd = FW_READ_SHADOW_RAM_CMD;
+ buffer.hdr.req.buf_lenh = 0;
+ buffer.hdr.req.buf_lenl = FW_READ_SHADOW_RAM_LEN;
+ buffer.hdr.req.checksum = FW_DEFAULT_CHECKSUM;
+
+ /* convert offset from words to bytes */
+ buffer.address = IXGBE_CPU_TO_BE32(offset * 2);
+ /* one word */
+ buffer.length = IXGBE_CPU_TO_BE16(sizeof(u16));
+ buffer.pad2 = 0;
+ buffer.pad3 = 0;
+
+ 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);
+ }
+
+ hw->mac.ops.release_swfw_sync(hw, mask);
+ 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.
+ **/
+s32 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;
+ s32 status;
+ u32 i;
+
+ DEBUGFUNC("ixgbe_read_ee_hostif_buffer_X550");
+
+ /* Take semaphore for the entire operation. */
+ status = hw->mac.ops.acquire_swfw_sync(hw, mask);
+ if (status) {
+ DEBUGOUT("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;
+
+ buffer.hdr.req.cmd = FW_READ_SHADOW_RAM_CMD;
+ buffer.hdr.req.buf_lenh = 0;
+ buffer.hdr.req.buf_lenl = FW_READ_SHADOW_RAM_LEN;
+ buffer.hdr.req.checksum = FW_DEFAULT_CHECKSUM;
+
+ /* convert offset from words to bytes */
+ buffer.address = IXGBE_CPU_TO_BE32((offset + current_word) * 2);
+ buffer.length = IXGBE_CPU_TO_BE16(words_to_read * 2);
+ buffer.pad2 = 0;
+ buffer.pad3 = 0;
+
+ status = ixgbe_hic_unlocked(hw, (u32 *)&buffer, sizeof(buffer),
+ IXGBE_HI_COMMAND_TIMEOUT);
+
+ if (status) {
+ DEBUGOUT("Host interface command failed\n");
+ goto out;
+ }
+
+ for (i = 0; i < words_to_read; i++) {
+ u32 reg = IXGBE_FLEX_MNG + (FW_NVM_DATA_OFFSET << 2) +
+ 2 * i;
+ u32 value = IXGBE_READ_REG(hw, reg);
+
+ data[current_word] = (u16)(value & 0xffff);
+ current_word++;
+ i++;
+ if (i < words_to_read) {
+ value >>= 16;
+ data[current_word] = (u16)(value & 0xffff);
+ current_word++;
+ }
+ }
+ words -= words_to_read;
+ }
+
+out:
+ hw->mac.ops.release_swfw_sync(hw, mask);
+ 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.
+ **/
+s32 ixgbe_write_ee_hostif_data_X550(struct ixgbe_hw *hw, u16 offset,
+ u16 data)
+{
+ s32 status;
+ struct ixgbe_hic_write_shadow_ram buffer;
+
+ DEBUGFUNC("ixgbe_write_ee_hostif_data_X550");
+
+ buffer.hdr.req.cmd = FW_WRITE_SHADOW_RAM_CMD;
+ buffer.hdr.req.buf_lenh = 0;
+ buffer.hdr.req.buf_lenl = FW_WRITE_SHADOW_RAM_LEN;
+ buffer.hdr.req.checksum = FW_DEFAULT_CHECKSUM;
+
+ /* one word */
+ buffer.length = IXGBE_CPU_TO_BE16(sizeof(u16));
+ buffer.data = data;
+ buffer.address = IXGBE_CPU_TO_BE32(offset * 2);
+
+ status = ixgbe_host_interface_command(hw, (u32 *)&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.
+ **/
+s32 ixgbe_write_ee_hostif_X550(struct ixgbe_hw *hw, u16 offset,
+ u16 data)
+{
+ s32 status = IXGBE_SUCCESS;
+
+ DEBUGFUNC("ixgbe_write_ee_hostif_X550");
+
+ if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) ==
+ IXGBE_SUCCESS) {
+ status = ixgbe_write_ee_hostif_data_X550(hw, offset, data);
+ hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
+ } else {
+ DEBUGOUT("write ee hostif failed to get semaphore");
+ status = IXGBE_ERR_SWFW_SYNC;
+ }
+
+ 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.
+ **/
+s32 ixgbe_write_ee_hostif_buffer_X550(struct ixgbe_hw *hw,
+ u16 offset, u16 words, u16 *data)
+{
+ s32 status = IXGBE_SUCCESS;
+ u32 i = 0;
+
+ DEBUGFUNC("ixgbe_write_ee_hostif_buffer_X550");
+
+ /* Take semaphore for the entire operation. */
+ status = hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
+ if (status != IXGBE_SUCCESS) {
+ DEBUGOUT("EEPROM write buffer - semaphore failed\n");
+ goto out;
+ }
+
+ for (i = 0; i < words; i++) {
+ status = ixgbe_write_ee_hostif_data_X550(hw, offset + i,
+ data[i]);
+
+ if (status != IXGBE_SUCCESS) {
+ DEBUGOUT("Eeprom buffered write failed\n");
+ break;
+ }
+ }
+
+ hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
+out:
+
+ return status;
+}
+
+/**
+ * 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
+ * @buffer: pointer to buffer containing calculated checksum
+ * @buffer_size: size of buffer
+ *
+ * Returns error status for any failure
+ */
+STATIC s32 ixgbe_checksum_ptr_x550(struct ixgbe_hw *hw, u16 ptr,
+ u16 size, u16 *csum, u16 *buffer,
+ u32 buffer_size)
+{
+ u16 buf[256];
+ s32 status;
+ u16 length, bufsz, i, start;
+ u16 *local_buffer;
+
+ bufsz = sizeof(buf) / sizeof(buf[0]);
+
+ /* Read a chunk at the pointer location */
+ if (!buffer) {
+ status = ixgbe_read_ee_hostif_buffer_X550(hw, ptr, bufsz, buf);
+ if (status) {
+ DEBUGOUT("Failed to read EEPROM image\n");
+ return status;
+ }
+ local_buffer = buf;
+ } else {
+ if (buffer_size < ptr)
+ return IXGBE_ERR_PARAM;
+ local_buffer = &buffer[ptr];
+ }
+
+ if (size) {
+ start = 0;
+ length = size;
+ } else {
+ start = 1;
+ length = local_buffer[0];
+
+ /* Skip pointer section if length is invalid. */
+ if (length == 0xFFFF || length == 0 ||
+ (ptr + length) >= hw->eeprom.word_size)
+ return IXGBE_SUCCESS;
+ }
+
+ if (buffer && ((u32)start + (u32)length > buffer_size))
+ return IXGBE_ERR_PARAM;
+
+ 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) {
+ DEBUGOUT("Failed to read EEPROM image\n");
+ return status;
+ }
+ }
+ *csum += local_buffer[i];
+ }
+ return IXGBE_SUCCESS;
+}
+
+/**
+ * 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
+ **/
+s32 ixgbe_calc_checksum_X550(struct ixgbe_hw *hw, u16 *buffer, u32 buffer_size)
+{
+ u16 eeprom_ptrs[IXGBE_EEPROM_LAST_WORD + 1];
+ u16 *local_buffer;
+ s32 status;
+ u16 checksum = 0;
+ u16 pointer, i, size;
+
+ DEBUGFUNC("ixgbe_calc_eeprom_checksum_X550");
+
+ 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) {
+ DEBUGOUT("Failed to read EEPROM image\n");
+ return status;
+ }
+ local_buffer = eeprom_ptrs;
+ } else {
+ if (buffer_size < IXGBE_EEPROM_LAST_WORD)
+ return IXGBE_ERR_PARAM;
+ 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 (s32)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
+ **/
+s32 ixgbe_calc_eeprom_checksum_X550(struct ixgbe_hw *hw)
+{
+ return ixgbe_calc_checksum_X550(hw, NULL, 0);
+}
+
+/**
+ * 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.
+ **/
+s32 ixgbe_validate_eeprom_checksum_X550(struct ixgbe_hw *hw, u16 *checksum_val)
+{
+ s32 status;
+ u16 checksum;
+ u16 read_checksum = 0;
+
+ DEBUGFUNC("ixgbe_validate_eeprom_checksum_X550");
+
+ /* 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) {
+ DEBUGOUT("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 = IXGBE_ERR_EEPROM_CHECKSUM;
+ ERROR_REPORT1(IXGBE_ERROR_INVALID_STATE,
+ "Invalid EEPROM checksum");
+ }
+
+ /* If the user cares, return the calculated checksum */
+ if (checksum_val)
+ *checksum_val = checksum;
+
+ return status;
+}
+
+/**
+ * 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.
+ **/
+s32 ixgbe_update_eeprom_checksum_X550(struct ixgbe_hw *hw)
+{
+ s32 status;
+ u16 checksum = 0;
+
+ DEBUGFUNC("ixgbe_update_eeprom_checksum_X550");
+
+ /* 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) {
+ DEBUGOUT("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);