diff --git a/sonic_y_cable/credo/y_cable_credo.py b/sonic_y_cable/credo/y_cable_credo.py new file mode 100644 index 000000000..3a888f727 --- /dev/null +++ b/sonic_y_cable/credo/y_cable_credo.py @@ -0,0 +1,2914 @@ +""" + y_cable_credo.py + + Implementation of Credo Y-Cable +""" + +import math +import time +import struct +from ctypes import c_int8 +from sonic_y_cable.y_cable_base import YCableBase + +try: + import sonic_platform.platform +except ImportError as e: + pass + + +class YCable(YCableBase): + # definitions of the offset with width accommodated for values + # of MUX register specs of upper page 0x04 starting at 640 + # info eeprom for Y Cable + OFFSET_IDENTIFIER_LOWER_PAGE = 0 + OFFSET_INTERNAL_TEMPERATURE = 22 + OFFSET_INTERNAL_VOLTAGE = 26 + OFFSET_IDENTIFIER_UPPER_PAGE = 128 + OFFSET_VENDOR_NAME = 148 + OFFSET_PART_NUMBER = 168 + OFFSET_SERIAL_NUMBER = 196 + OFFSET_DETERMINE_CABLE_READ_SIDE = 640 + OFFSET_CHECK_LINK_ACTIVE = 641 + OFFSET_SWITCH_MUX_DIRECTION = 642 + OFFSET_MUX_DIRECTION = 644 + OFFSET_ACTIVE_TOR_INDICATOR = 645 + OFFSET_ENABLE_AUTO_SWITCH = 651 + OFFSET_AUTO_SWITCH_HYSTERESIS = 652 + OFFSET_MANUAL_SWITCH_COUNT_TOR_A = 653 + OFFSET_AUTO_SWITCH_COUNT = 657 + OFFSET_NIC_CURSOR_VALUES = 661 + OFFSET_TOR1_CURSOR_VALUES = 681 + OFFSET_TOR2_CURSOR_VALUES = 701 + OFFSET_NIC_MODE_CONFIGURATION = 721 + OFFSET_NIC_TEMPERATURE = 727 + OFFSET_NIC_VOLTAGE = 729 + OFFSET_NIC_SIGNAL_DETECTION = 731 + OFFSET_MANUAL_SWITCH_COUNT_TOR_B = 737 + OFFSET_EXTEND_SWITCH_COUNT_TYPE = 741 + OFFSET_EXTEND_SWITCH_COUNT = 742 + OFFSET_CLEAR_SWITCH_COUNT = 746 + OFFSET_CONFIGURE_PRBS_TYPE = 768 + OFFSET_ENABLE_PRBS = 769 + OFFSET_INITIATE_BER_MEASUREMENT = 770 + OFFSET_LANE_1_BER_RESULT = 771 + OFFSET_INITIATE_EYE_MEASUREMENT = 784 + OFFSET_LANE_1_EYE_RESULT = 785 + OFFSET_ENABLE_LOOPBACK = 793 + OFFSET_TARGET = 794 + OFFSET_SYNC_DEBUG_MODE = 795 + + + # definition of VSC command byte + VSC_BYTE_OPCODE = 128 + VSC_BYTE_STATUS = 129 + VSC_BYTE_ADDR0 = 130 + VSC_BYTE_ADDR1 = 131 + VSC_BYTE_ADDR2 = 132 + VSC_BYTE_ADDR3 = 133 + VSC_BYTE_DATA0 = 134 + VSC_BYTE_DATA1 = 135 + VSC_BYTE_DATA2 = 136 + VSC_BYTE_DATA3 = 137 + VSC_BYTE_CHKSUM_LSB = 138 + VSC_BYTE_CHKSUM_MSB = 139 + VSC_BYTE_OPTION = 140 + + # firmware upgrade command options + FWUPD_OPTION_GET_INFO = 0x01 + FWUPD_OPTION_START = 0x02 + FWUPD_OPTION_LOCAL_XFER = 0x03 + FWUPD_OPTION_LOCAL_XFER_COMPLETE = 0x04 + FWUPD_OPTION_UART_XFER = 0x05 + FWUPD_OPTION_UART_XFER_STATUS = 0x06 + FWUPD_OPTION_RUN = 0x07 + FWUPD_OPTION_COMMIT = 0x08 + FWUPD_OPTION_SYNC = 0x09 + FWUPD_OPTION_SYNC_STATUS = 0x0A + + # upper page 0xFA VSC command attribute length + VSC_CMD_ATTRIBUTE_LENGTH = 141 + VSC_BUFF_SIZE = 512 + VSC_BLOCK_WRITE_LENGTH = 32 + + FIRMWARE_INFO_PAYLOAD_SIZE = 48 + EVENTLOG_PAYLOAD_SIZE = 18 + + MAX_NUM_LANES = 4 + + # definition of MIS memorymap page + MIS_PAGE_VSC = 0xFA + MIS_PAGE_FC = 0xFC + + # eventlog command option + EVENTLOG_OPTION_DUMP = 0x01 + EVENTLOG_OPTION_CLEAR = 0x02 + + # VSC opcode + VSC_OPCODE_UART_STAT = 0x1C + VSC_OPCODE_SERDES_INFO = 0x1D + VSC_OPCODE_DSP_LOADFW_STAT = 0x1F + VSC_OPCODE_FWUPD = 0x80 + VSC_OPCODE_EVENTLOG = 0x81 + VSC_OPCODE_TCM_READ = 0x82 + VSC_OPCODE_TCM_WRITE = 0x83 + VSC_OPCODE_FW_CMD = 0x84 + VSC_OPCODE_FW_CMD_EXT = 0x85 + VSC_OPCODE_REG_READ = 0x86 + VSC_OPCODE_REG_WRITE = 0x87 + + BER_TIMEOUT_SECS = 1 + EYE_TIMEOUT_SECS = 1 + GET_DEBUG_MODE_TIMEOUT_SECS = 1 + EXTEND_SWITCH_CNT_TIMEOUT_SECS = 1 + + # error code of EEPROM + EEPROM_READ_DATA_INVALID = -1 + EEPROM_ERROR = -1 + EEPROM_TIMEOUT_ERROR = -1 + EEPROM_GENERIC_ERROR = -1 + + # MCU error code + MCU_EC_NO_ERROR = 0 + MCU_EC_GET_FW_INFO_ERROR = 11 + MCU_EC_UART_TX_BUSY = 13 + MCU_EC_FWUPD_ABORT = 14 + MCU_EC_FWUPD_HEADER_CRC_ERROR = 15 + MCU_EC_FWUPD_META_CRC_ERROR = 16 + MCU_EC_FWUPD_MCU_CRC_ERROR = 17 + MCU_EC_FWUPD_DSP_CRC_ERROR = 18 + MCU_EC_FWUPD_SCRIPT_CRC_ERROR = 19 + MCU_EC_FWUPD_COMPLETE_ERROR = 20 + MCU_EC_FWUPD_COMMIT_ERROR = 21 + MCU_EC_INVALID_EVENT_LOG = 22 + MCU_EC_FWUPD_UART_TIMEOUT = 26 + MCU_EC_FWUPD_INVALID_SEQUENCE = 27 + MCU_EC_FWUPD_SYNC_ERROR = 28 + MCU_EC_FWUPD_ABORT_FROM_THER_OTHER_SIDE = 30 + MCU_EC_FWUPD_IMAGE_SIZE_ERROR = 31 + MCU_EC_WAIT_VSC_STATUS_TIMEOUT = 254 + MCU_EC_UNDEFINED_ERROR = 255 + + MCU_ERROR_CODE_STRING = { + MCU_EC_NO_ERROR : 'No Error', + MCU_EC_GET_FW_INFO_ERROR : 'Get Firmware Info Error', + MCU_EC_UART_TX_BUSY : 'UART TX Busy', + MCU_EC_FWUPD_ABORT : 'Firmware Update Abort', + MCU_EC_FWUPD_HEADER_CRC_ERROR : 'Firmware Update Header CRC Error', + MCU_EC_FWUPD_META_CRC_ERROR : 'Firmware Update Meta CRC Error', + MCU_EC_FWUPD_MCU_CRC_ERROR : 'Firmware Update MCU CRC Error', + MCU_EC_FWUPD_DSP_CRC_ERROR : 'Firmware Update DSP CRC Error', + MCU_EC_FWUPD_SCRIPT_CRC_ERROR : 'Firmware Update Script CRC Error', + MCU_EC_FWUPD_COMPLETE_ERROR : 'Firmware Update Local Transfer Error', + MCU_EC_FWUPD_COMMIT_ERROR : 'Firmware Update Commit Error', + MCU_EC_INVALID_EVENT_LOG : 'Invalid Event Log', + MCU_EC_FWUPD_UART_TIMEOUT : 'Firmware Update UART Timeout', + MCU_EC_FWUPD_INVALID_SEQUENCE : 'Invalid Firmware Update Sequence', + MCU_EC_FWUPD_SYNC_ERROR : 'Firmware Synchronization Error', + MCU_EC_FWUPD_ABORT_FROM_THER_OTHER_SIDE: 'Firmware Update Abort from the Other Side', + MCU_EC_FWUPD_IMAGE_SIZE_ERROR : 'Firmware Update Image Size Error', + MCU_EC_WAIT_VSC_STATUS_TIMEOUT : 'Wait VSC Status Timeout', + MCU_EC_UNDEFINED_ERROR : 'Undefined Error', + } + + def __init__(self, port, main_logger): + """ + Args: + port: + an Integer, the actual physical port connected to a Y cable + """ + YCableBase.__init__(self, port, main_logger) + + self.platform_chassis = None + + try: + self.platform_chassis = sonic_platform.platform.Platform().get_chassis() + self.log_info("chassis loaded {}".format(self.platform_chassis)) + except Exception as e: + self.log_warning("Failed to load chassis due to {}".format(repr(e))) + + def read_mmap(self, page, byte, len=1): + """ + This API converts memory map page and offset to linar address, then returns eeprom values + by calling read_eeprom() + + Args: + page: + an Integer, page number of memorymap + + byte: + an Integer, byte address of the page + + len: + an Integer, length of the reading + + Returns: + an Integer or bytearray, returns the value of the specified eeprom addres, returns 0xFF if it did not succeed + """ + if byte < 128: + linear_addr = byte + else: + linear_addr = page * 128 + byte + + ret = self.platform_chassis.get_sfp(self.port).read_eeprom(linear_addr, len) + + if ret is None: + self.log_error('Read Nack! page:%2X byte:%2X' % (page, byte)) + return 0xFF + else: + if len == 1: + try: + return ret[0] + except Exception as e: + self.log_error('Unknown read_mmap error') + return 0xFF + else: + return ret + + def write_mmap(self, page, byte, value, len=1): + """ + This API converts memory map page and offset to linar address for calling write_eeprom() + + Args: + page: + an Integer, page number of memorymap + + byte: + an Integer, byte address of the page + + value: + an Integer or bytearray, value to be written to the address + + len: + an Integer, length to be written + + Returns: + an Boolean, true if succeeded and false if it did not succeed. + """ + + #print ('write page:%02X byte :%02X len:%d type:%s' % (page, byte, len, type(value))) + + if byte < 128: + linear_addr = byte + else: + linear_addr = page * 128 + byte + + if len == 1: + ba = bytearray([value]) + else: + ba = value + + ret = self.platform_chassis.get_sfp(self.port).write_eeprom(linear_addr, len, ba) + + if (ret == False): + self.log_error('Write Failed! page:%2X byte:%2X value:%2X' % (page, byte, value)) + + return ret + + def send_vsc(self, vsc_req_form, timeout=1200): + """ + This API sends Credo vendor specific command to the MCU + + Args: + vsc_req_form: + a bytearray, command request form follow by vsc command structure + + timeout: + an Integer, unit is 5ms, default value is 1200 (6 seconds). + + Returns: + an Integer, status code of vsc command, find the 'MCU_ERROR_CODE_STRING' for the interpretation. + """ + + if self.platform_chassis is not None: + for idx in range(129, YCable.VSC_CMD_ATTRIBUTE_LENGTH): + if vsc_req_form[idx] != None: + self.write_mmap(YCable.MIS_PAGE_VSC, idx, vsc_req_form[idx]) + self.write_mmap(YCable.MIS_PAGE_VSC, YCable.VSC_BYTE_OPCODE, vsc_req_form[YCable.VSC_BYTE_OPCODE]) + + while True: + done = self.read_mmap(YCable.MIS_PAGE_VSC, YCable.VSC_BYTE_OPCODE) + if done == 0: + break + + time.sleep(0.005) + timeout -= 1 + + if timeout == 0: + self.log_error("wait vsc status value timeout") + return YCable.MCU_EC_WAIT_VSC_STATUS_TIMEOUT + + status = self.read_mmap(YCable.MIS_PAGE_VSC, YCable.VSC_BYTE_STATUS) + else: + self.log_error("platform_chassis is not loaded, failed to send vsc cmd") + return YCable.MCU_EC_UNDEFINED_ERROR + + return status + + def fw_cmd(self, cmd, detail1): + """ + This API sends the firmware command to the serdes chip via VSC cmd + + Args: + cmd: + an Integer, command code of the firmware command + + detail1: + an Integer, extra input parameter 1 + + Returns: + a Bytearray, a list of response code and return value + """ + vsc_req_form = [None] * (YCable.VSC_CMD_ATTRIBUTE_LENGTH) + vsc_req_form[YCable.VSC_BYTE_OPCODE] = YCable.VSC_OPCODE_FW_CMD + vsc_req_form[YCable.VSC_BYTE_OPTION] = 0 + vsc_req_form[130] = (cmd >> 0) & 0xFF + vsc_req_form[131] = (cmd >> 8) & 0xFF + vsc_req_form[132] = (detail1 >> 0) & 0xFF + vsc_req_form[133] = (detail1 >> 8) & 0xFF + status = self.send_vsc(vsc_req_form) + if status != YCable.MCU_EC_NO_ERROR: + self.log_error('fw cmd[%04X] detail1[%04X] error[%04X]' % (cmd, detail1, status)) + + response = (self.read_mmap(YCable.MIS_PAGE_VSC, 131) << 8) | self.read_mmap(YCable.MIS_PAGE_VSC, 130) + param1 = (self.read_mmap(YCable.MIS_PAGE_VSC, 137) << 8) | self.read_mmap(YCable.MIS_PAGE_VSC, 136) + + return [response, param1] + + def fw_cmd_ext(self, cmd, detail1, detail2): + """ + This API sends the extended firmware command to the serdes chip via VSC cmd + + Args: + cmd: + an Integer, command code of the firmware command + + detail1: + an Integer, extra input parameter 1 + + detail2: + an Integer, extra input parameter 2 + Returns: + a Bytearray, a list of response code, returned value1 and value2 + """ + vsc_req_form = [None] * (YCable.VSC_CMD_ATTRIBUTE_LENGTH) + vsc_req_form[YCable.VSC_BYTE_OPCODE] = YCable.VSC_OPCODE_FW_CMD_EXT + vsc_req_form[YCable.VSC_BYTE_OPTION] = 0 + vsc_req_form[130] = (cmd >> 0) & 0xFF + vsc_req_form[131] = (cmd >> 8) & 0xFF + vsc_req_form[132] = (detail1 >> 0) & 0xFF + vsc_req_form[133] = (detail1 >> 8) & 0xFF + vsc_req_form[134] = (detail2 >> 0) & 0xFF + vsc_req_form[135] = (detail2 >> 8) & 0xFF + status = self.send_vsc(vsc_req_form) + if status != YCable.MCU_EC_NO_ERROR: + self.log_error('fw cmd ext[%04X] detail1[%04X] detail2[%04X] error[%04X]' % (cmd, detail1, detail2, status)) + + response = (self.read_mmap(YCable.MIS_PAGE_VSC, 131) << 8) | self.read_mmap(YCable.MIS_PAGE_VSC, 130) + param1 = (self.read_mmap(YCable.MIS_PAGE_VSC, 137) << 8) | self.read_mmap(YCable.MIS_PAGE_VSC, 136) + param2 = (self.read_mmap(YCable.MIS_PAGE_VSC, 139) << 8) | self.read_mmap(YCable.MIS_PAGE_VSC, 138) + + return [response, param1, param2] + + def tcm_read(self, addr): + """ + This API sends the tcm read command to the serdes chip via VSC cmd + + Args: + addr: + an Integer, address of tcm space + Returns: + an Integer, return data of tcm address + """ + + vsc_req_form = [None] * (YCable.VSC_CMD_ATTRIBUTE_LENGTH) + vsc_req_form[YCable.VSC_BYTE_OPCODE] = YCable.VSC_OPCODE_TCM_READ + vsc_req_form[130] = (addr >> 0) & 0xFF + vsc_req_form[131] = (addr >> 8) & 0xFF + vsc_req_form[132] = (addr >> 16) & 0xFF + vsc_req_form[133] = (addr >> 24) & 0xFF + status = self.send_vsc(vsc_req_form) + if status != YCable.MCU_EC_NO_ERROR: + self.log_error('tcm read addr[%04X] error[%04X]' % (addr, status)) + return -1 + + data = (self.read_mmap(YCable.MIS_PAGE_VSC, 134) | (self.read_mmap(YCable.MIS_PAGE_VSC, 135) << 8) | + (self.read_mmap(YCable.MIS_PAGE_VSC, 136) << 16) | (self.read_mmap(YCable.MIS_PAGE_VSC, 137) << 24)) + + return data + + def tcm_write(self, addr, data): + """ + This API sends the tcm write command to the serdes chip via VSC cmd + + Args: + addr: + an Integer, address of tcm space + + data: + an Integer, value to be written to the address + + Returns: + a boolean, True if the tcm write succeeded and False if it did not succeed. + """ + + vsc_req_form = [None] * (YCable.VSC_CMD_ATTRIBUTE_LENGTH) + vsc_req_form[YCable.VSC_BYTE_OPCODE] = YCable.VSC_OPCODE_TCM_WRITE + vsc_req_form[130] = (addr >> 0) & 0xFF + vsc_req_form[131] = (addr >> 8) & 0xFF + vsc_req_form[132] = (addr >> 16) & 0xFF + vsc_req_form[133] = (addr >> 24) & 0xFF + vsc_req_form[134] = (data >> 0) & 0xFF + vsc_req_form[135] = (data >> 8) & 0xFF + vsc_req_form[136] = (data >> 16) & 0xFF + vsc_req_form[137] = (data >> 24) & 0xFF + + status = self.send_vsc(vsc_req_form) + if status != YCable.MCU_EC_NO_ERROR: + self.log_error('tcm read addr[%04X] data[%04X] error[%04X]' % (addr, data, status)) + return False + + return True + + def reg_read(self, addr): + """ + This API reads the serdes register via vsc + + Args: + addr: + an Integer, address of the serdes register + Returns: + an Integer, return data of the register + """ + + vsc_req_form = [None] * (YCable.VSC_CMD_ATTRIBUTE_LENGTH) + vsc_req_form[YCable.VSC_BYTE_OPCODE] = YCable.VSC_OPCODE_REG_READ + vsc_req_form[130] = (addr >> 0) & 0xFF + vsc_req_form[131] = (addr >> 8) & 0xFF + vsc_req_form[132] = (addr >> 16) & 0xFF + vsc_req_form[133] = (addr >> 24) & 0xFF + status = self.send_vsc(vsc_req_form) + if status != YCable.MCU_EC_NO_ERROR: + self.log_error('reg read addr[%04X] error[%04X]' % (addr, status)) + return -1 + + return self.read_mmap(YCable.MIS_PAGE_VSC, 134) | (self.read_mmap(YCable.MIS_PAGE_VSC, 135) << 8) + + def reg_write(self, addr, data): + """ + This API writes the serdes register via vsc + + Args: + addr: + an Integer, address of the serdes register + + data: + an Integer, value to be written to the register address + + Returns: + a boolean, True if the register write succeeded and False if it did not succeed. + """ + + vsc_req_form = [None] * (YCable.VSC_CMD_ATTRIBUTE_LENGTH) + vsc_req_form[YCable.VSC_BYTE_OPCODE] = YCable.VSC_OPCODE_REG_WRITE + vsc_req_form[130] = (addr >> 0) & 0xFF + vsc_req_form[131] = (addr >> 8) & 0xFF + vsc_req_form[134] = (data >> 0) & 0xFF + vsc_req_form[135] = (data >> 8) & 0xFF + + status = self.send_vsc(vsc_req_form) + if status != YCable.MCU_EC_NO_ERROR: + self.log_error('reg write addr[%04X] data[%04X] error[%04X]' % (addr, data, status)) + return False + + return True + + def toggle_mux_to_tor_a(self): + """ + This API does a hard switch toggle of the Y cable's MUX regardless of link state to + TOR A on the port this is called for. This means if the Y cable is actively sending traffic, + the "get_active_linked_tor_side" API will now return Tor A. + It also implies that if the link is actively sending traffic on this port, + Y cable MUX will start forwarding packets from TOR A to NIC, and drop packets from TOR B to NIC + regardless of previous forwarding state. + The port on which this API is called for can be referred using self.port. + + Args: + + Returns: + a Boolean, True if the toggle succeeded and False if it did not succeed. + """ + + buffer = bytearray([2]) + curr_offset = YCable.OFFSET_SWITCH_MUX_DIRECTION + + if self.platform_chassis is not None: + result = self.platform_chassis.get_sfp(self.port).write_eeprom(curr_offset, 1, buffer) + else: + self.log_error("platform_chassis is not loaded, failed to toggle mux to TOR A") + return YCable.EEPROM_ERROR + + return result + + def toggle_mux_to_tor_b(self): + """ + This API does a hard switch toggle of the Y cable's MUX regardless of link state to + TOR B. This means if the Y cable is actively sending traffic, the "get_active_linked_tor_side" + API will now return Tor B. It also implies that if the link is actively sending traffic on this port, + Y cable. MUX will start forwarding packets from TOR B to NIC, and drop packets from TOR A to NIC + regardless of previous forwarding state. + The port on which this API is called for can be referred using self.port. + + Args: + + Returns: + a Boolean, True if the toggle succeeded and False if it did not succeed. + """ + buffer = bytearray([3]) + curr_offset = YCable.OFFSET_SWITCH_MUX_DIRECTION + + if self.platform_chassis is not None: + result = self.platform_chassis.get_sfp(self.port).write_eeprom(curr_offset, 1, buffer) + else: + self.log_error("platform_chassis is not loaded, failed to toggle mux to TOR B") + return YCable.EEPROM_ERROR + + return result + + def get_read_side(self): + """ + This API checks which side of the Y cable the reads are actually getting performed + from, either TOR A or TOR B or NIC and returns the value. + The port on which this API is called for can be referred using self.port. + + Args: + + Returns: + One of the following predefined constants: + TARGET_TOR_A, if reading the Y cable from TOR A side. + TARGET_TOR_B, if reading the Y cable from TOR B side. + TARGET_NIC, if reading the Y cable from NIC side. + TARGET_UNKNOWN, if reading the Y cable API fails. + """ + + curr_offset = YCable.OFFSET_DETERMINE_CABLE_READ_SIDE + + if self.platform_chassis is not None: + result = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset, 1) + else: + self.log_error("platform_chassis is not loaded, failed to check read side") + return YCable.EEPROM_ERROR + + if result is not None: + if isinstance(result, bytearray): + if len(result) != 1: + self.log_error("Error: for checking mux_cable read side, eeprom read returned a size {} not equal to 1 for port {}".format( + len(result), self.port)) + return YCableBase.TARGET_UNKNOWN + else: + self.log_error("Error: for checking mux_cable read_side, eeprom read returned an instance value of type {} which is not a bytearray for port {}".format( + type(result), self.port)) + return YCableBase.TARGET_UNKNOWN + else: + self.log_error( + "Error: for checking mux_cable read_side, eeprom read returned a None value for port {} which is not expected".format(self.port)) + return YCableBase.TARGET_UNKNOWN + + regval_read = struct.unpack(">B", result) + + if ((regval_read[0] >> 2) & 0x01): + self.log_info("Reading from TOR A") + return YCableBase.TARGET_TOR_A + elif ((regval_read[0] >> 1) & 0x01): + self.log_info("Reading from TOR B") + return YCableBase.TARGET_TOR_B + elif (regval_read[0] & 0x01): + self.log_info("Reading from NIC side") + return YCableBase.TARGET_NIC + else: + self.log_error("Error: unknown status for checking which side regval = {} ".format(result)) + + return YCableBase.TARGET_UNKNOWN + + def get_mux_direction(self): + """ + This API checks which side of the Y cable mux is currently point to + and returns either TOR A or TOR B. Note that this API should return mux-direction + regardless of whether the link is active and sending traffic or not. + The port on which this API is called for can be referred using self.port. + + Args: + + Returns: + One of the following predefined constants: + TARGET_TOR_A, if mux is pointing to TOR A side. + TARGET_TOR_B, if mux is pointing to TOR B side. + TARGET_UNKNOWN, if mux direction API fails. + """ + + curr_offset = YCable.OFFSET_MUX_DIRECTION + + if self.platform_chassis is not None: + result = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset, 1) + else: + self.log_error( + "platform_chassis is not loaded, failed to check Active Linked and routing TOR side") + return YCable.EEPROM_ERROR + + if result is not None: + if isinstance(result, bytearray): + if len(result) != 1: + self.log_error("Error: for checking mux_cable mux pointing side, eeprom read returned a size {} not equal to 1 for port {}".format( + len(result), self.port)) + return YCableBase.TARGET_UNKNOWN + else: + self.log_error("Error: for checking mux_cable mux pointing side, eeprom read returned an instance value of type {} which is not a bytearray for port {}".format( + type(result), self.port)) + return YCableBase.TARGET_UNKNOWN + else: + self.log_error( + "Error: for checking mux_cable mux pointing side, eeprom read returned a None value from eeprom read for port {} which is not expected".format(self.port)) + return YCableBase.TARGET_UNKNOWN + + regval_read = struct.unpack(">B", result) + + if ((regval_read[0]) & 0x01): + self.log_info("mux pointing to TOR A") + return YCableBase.TARGET_TOR_A + elif regval_read[0] == 0: + self.log_info("mux pointing to TOR B") + return YCableBase.TARGET_TOR_B + + self.log_error("Error: unknown status for mux direction regval = {} ".format(result)) + return YCableBase.TARGET_UNKNOWN + + def get_active_linked_tor_side(self): + """ + This API checks which side of the Y cable is actively linked and sending traffic + and returns either TOR A or TOR B. + The port on which this API is called for can be referred using self.port. + This is different from get_mux_direction in a sense it also implies the link on the side + where mux is pointing to must be active and sending traffic, whereas get_mux_direction + just tells where the mux is pointing to. + + Args: + + Returns: + One of the following predefined constants: + TARGET_TOR_A, if TOR A is actively linked and sending traffic. + TARGET_TOR_B, if TOR B is actively linked and sending traffic. + TARGET_UNKNOWN, if checking which side is linked and sending traffic API fails. + """ + curr_offset = YCable.OFFSET_ACTIVE_TOR_INDICATOR + + if self.platform_chassis is not None: + result = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset, 1) + else: + self.log_error( + "platform_chassis is not loaded, failed to check Active Linked and routing TOR side") + return YCable.EEPROM_ERROR + + if result is not None: + if isinstance(result, bytearray): + if len(result) != 1: + self.log_error("Error: for checking mux_cable active linked side, eeprom read returned a size {} not equal to 1 for port {}".format( + len(result), self.port)) + return YCableBase.TARGET_UNKNOWN + else: + self.log_error("Error: for checking mux_cable active linked side, eeprom read returned an instance value of type {} which is not a bytearray for port {}".format( + type(result), self.port)) + return YCableBase.TARGET_UNKNOWN + else: + self.log_error( + "Error: for checking mux_cable active linked side, eeprom read returned a None value from eeprom read for port {} which is not expected".format(self.port)) + return YCableBase.TARGET_UNKNOWN + + regval_read = struct.unpack(">B", result) + + if ((regval_read[0] >> 1) & 0x01): + self.log_info("TOR B active linked and actively routing") + return YCableBase.TARGET_TOR_B + elif ((regval_read[0]) & 0x01): + self.log_info("TOR A standby linked and actively routing") + return YCableBase.TARGET_TOR_A + elif regval_read[0] == 0: + self.log_info("Nothing linked for routing") + return YCableBase.TARGET_NIC + + self.log_error("Error: unknown status for active TOR regval = {} ".format(result)) + return YCableBase.TARGET_UNKNOWN + + def is_link_active(self, target): + """ + This API checks if NIC, TOR_A and TOR_B of the Y cable's link is active. + The target specifies which link is supposed to be checked + The port on which this API is called for can be referred using self.port. + + Args: + target: + One of the following predefined constants, the actual target to check the link on: + TARGET_NIC -> NIC, + TARGET_TOR_A -> TORA, + TARGET_TOR_B -> TORB + + Returns: + a boolean, True if the link is active + , False if the link is not active + """ + curr_offset = YCable.OFFSET_CHECK_LINK_ACTIVE + + if self.platform_chassis is not None: + result = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset, 1) + else: + self.log_error( + "platform_chassis is not loaded, failed to check if link is Active on target side") + return YCable.EEPROM_ERROR + + if result is not None: + if isinstance(result, bytearray): + if len(result) != 1: + self.log_error("Error: for checking mux_cable link is active on target side, eeprom read returned a size {} not equal to 1 for port {}".format( + len(result), self.port)) + return YCableBase.TARGET_UNKNOWN + else: + self.log_error("Error: for checking mux_cable link is active on target side, eeprom read returned an instance value of type {} which is not a bytearray for port {}".format( + type(result), self.port)) + return YCableBase.TARGET_UNKNOWN + else: + self.log_error( + "Error: for checking mux_cable link is active on target side, eeprom read returned a None value from eeprom read for port {} which is not expected".format(self.port)) + return YCable.EEPROM_ERROR + + regval_read = struct.unpack(">B", result) + + if (regval_read[0] & 0x01): + self.log_info("NIC link is up") + return True + elif ((regval_read[0] >> 2) & 0x01): + self.log_info("TOR A link is up") + return True + elif ((regval_read[0] >> 1) & 0x01): + self.log_info("TOR B link is up") + return True + else: + return YCableBase.TARGET_UNKNOWN + + def get_eye_heights(self, target): + """ + This API returns the EYE height value for a specfic port. + The target could be local side, TOR_A, TOR_B, NIC etc. + The port on which this API is called for can be referred using self.port. + + Args: + target: + One of the following predefined constants, the target on which to get the eye: + EYE_PRBS_LOOPBACK_TARGET_LOCAL -> local side, + EYE_PRBS_LOOPBACK_TARGET_TOR_A -> TOR A + EYE_PRBS_LOOPBACK_TARGET_TOR_B -> TOR B + EYE_PRBS_LOOPBACK_TARGET_NIC -> NIC + Returns: + a list, with EYE values of lane 0 lane 1 lane 2 lane 3 with corresponding index + """ + + eye_result = [] + + if self.platform_chassis is not None: + buffer = bytearray([target]) + curr_offset = YCable.OFFSET_TARGET + result = self.platform_chassis.get_sfp(self.port).write_eeprom(curr_offset, 1, buffer) + if result is False: + return result + + buffer = bytearray([0]) + curr_offset = YCable.OFFSET_INITIATE_EYE_MEASUREMENT + result = self.platform_chassis.get_sfp(self.port).write_eeprom(curr_offset, 1, buffer) + if result is False: + return result + + time_start = time.time() + while(True): + done = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset, 1) + time_now = time.time() + time_diff = time_now - time_start + if done[0] == 1: + break + elif time_diff >= YCable.EYE_TIMEOUT_SECS: + return YCable.EEPROM_TIMEOUT_ERROR + + idx = 0 + for lane in range(YCable.MAX_NUM_LANES): + curr_offset = YCable.OFFSET_LANE_1_EYE_RESULT + msb_result = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset + idx, 1) + lsb_result = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset + idx + 1, 1) + + lane_result = (msb_result[0] << 8 | lsb_result[0]) + eye_result.append(lane_result) + idx += 2 + else: + self.log_error("platform_chassis is not loaded, failed to configure the PRBS type") + return YCable.EEPROM_ERROR + + return eye_result + + def get_vendor(self): + """ + This API returns the vendor name of the Y cable for a specfic port. + The port on which this API is called for can be referred using self.port. + + Args: + + Returns: + a string, with vendor name + """ + + curr_offset = YCable.OFFSET_VENDOR_NAME + + if self.platform_chassis is not None: + result = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset, 16) + else: + self.log_error("platform_chassis is not loaded, failed to get Vendor name") + return YCable.EEPROM_ERROR + + vendor_name = str(result.decode()) + + return vendor_name + + def get_part_number(self): + """ + This API returns the part number of the Y cable for a specfic port. + The port on which this API is called for can be referred using self.port. + + Args: + + Returns: + a string, with part number + """ + curr_offset = YCable.OFFSET_PART_NUMBER + + if self.platform_chassis is not None: + part_result = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset, 16) + else: + self.log_error("platform_chassis is not loaded, failed to get part number") + return YCable.EEPROM_ERROR + + part_number = str(part_result.decode()) + + return part_number + + def get_serial_number(self): + """ + This API returns the serial number of the Y cable for a specfic port. + The port on which this API is called for can be referred using self.port. + + Args: + + Returns: + a string, with serial number + """ + curr_offset = YCable.OFFSET_SERIAL_NUMBER + + if self.platform_chassis is not None: + part_result = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset, 16) + else: + self.log_error("platform_chassis is not loaded, failed to get part number") + return YCable.EEPROM_ERROR + + part_number = str(part_result.decode()) + + return part_number + + def get_switch_count_total(self, switch_count_type, clear_on_read=False): + """ + This API returns the total switch count to change the Active TOR which has + been done manually/automatic by the user. + The port on which this API is called for can be referred using self.port. + + Args: + switch_count_type: + One of the following predefined constants, for getting the count type: + SWITCH_COUNT_MANUAL -> manual switch count + SWITCH_COUNT_AUTO -> automatic switch count + clear_on_read: + a boolean, True if the count has to be reset after read to zero + , False if the count is not to be reset after read + Returns: + an integer, the number of times the Y-cable has been switched + """ + + count = 0 + + if switch_count_type == YCableBase.SWITCH_COUNT_MANUAL: + count = self.get_switch_count_tor_a(clear_on_read) + self.get_switch_count_tor_b(clear_on_read) + elif switch_count_type == YCableBase.SWITCH_COUNT_AUTO: + curr_offset = YCable.OFFSET_AUTO_SWITCH_COUNT + + if self.platform_chassis is not None: + msb_result = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset, 1) + msb_result_1 = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset + 1, 1) + msb_result_2 = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset + 2, 1) + lsb_result = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset+3, 1) + count = (msb_result[0] << 24 | msb_result_1[0] << 16 | msb_result_2[0] << 8 | lsb_result[0]) + else: + self.log_error("platform_chassis is not loaded, failed to get manual switch count") + return YCable.EEPROM_ERROR + else: + self.log_error("not a valid switch_count_type, failed to get switch count") + return YCable.EEPROM_ERROR + + if clear_on_read: + if switch_count_type == YCableBase.SWITCH_COUNT_AUTO: + curr_offset = YCable.OFFSET_AUTO_SWITCH_COUNT + buffer = bytearray([6]) + result = self.platform_chassis.get_sfp( + self.port).write_eeprom(curr_offset, 1, buffer) + if result is False: + return YCable.EEPROM_ERROR + + return count + + def get_switch_count_tor_a(self, clear_on_read=False): + """ + This API returns the switch count to change the Active TOR which has + been done manually by the user initiated from ToR A + This is essentially all the successful switches initiated from ToR A. Toggles which were + initiated to toggle from ToR A and did not succeed do not count. + The port on which this API is called for can be referred using self.port. + + Args: + clear_on_read: + a boolean, True if the count has to be reset after read to zero + , False if the count is not to be reset after read + + Returns: + an integer, the number of times the Y-cable has been switched from ToR A + """ + + curr_offset = YCable.OFFSET_MANUAL_SWITCH_COUNT_TOR_A + count = 0 + + if self.platform_chassis is not None: + msb_result = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset, 1) + msb_result_1 = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset + 1, 1) + msb_result_2 = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset + 2, 1) + lsb_result = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset+3, 1) + count = (msb_result[0] << 24 | msb_result_1[0] << 16 | msb_result_2[0] << 8 | lsb_result[0]) + else: + self.log_error("platform_chassis is not loaded, failed to get manual switch count") + return YCable.EEPROM_ERROR + + if clear_on_read: + buffer = bytearray([4]) + curr_offset = YCable.OFFSET_CLEAR_SWITCH_COUNT + result = self.platform_chassis.get_sfp( + self.port).write_eeprom(curr_offset, 1, buffer) + if result is False: + return YCable.EEPROM_ERROR + + return count + + def get_switch_count_tor_b(self, clear_on_read=False): + """ + This API returns the switch count to change the Active TOR which has + been done manually by the user initiated from ToR B + This is essentially all the successful switches initiated from ToR B. Toggles which were + initiated to toggle from ToR B and did not succeed do not count. + The port on which this API is called for can be referred using self.port. + + Args: + clear_on_read: + a boolean, True if the count has to be reset after read to zero + , False if the count is not to be reset after read + + Returns: + an integer, the number of times the Y-cable has been switched from ToR B + """ + + curr_offset = YCable.OFFSET_MANUAL_SWITCH_COUNT_TOR_B + count = 0 + + if self.platform_chassis is not None: + msb_result = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset, 1) + msb_result_1 = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset + 1, 1) + msb_result_2 = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset + 2, 1) + lsb_result = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset+3, 1) + count = (msb_result[0] << 24 | msb_result_1[0] << 16 | msb_result_2[0] << 8 | lsb_result[0]) + else: + self.log_error("platform_chassis is not loaded, failed to get manual switch count") + return YCable.EEPROM_ERROR + + if clear_on_read: + buffer = bytearray([5]) + curr_offset = YCable.OFFSET_CLEAR_SWITCH_COUNT + result = self.platform_chassis.get_sfp( + self.port).write_eeprom(curr_offset, 1, buffer) + if result is False: + return YCable.EEPROM_ERROR + + return count + + def get_switch_count_target(self, switch_count_type, target, clear_on_read=False): + """ + This API returns the total number of times the Active TOR has + been done manually/automaticlly toggled towards a target. + For example, TARGET_TOR_A as target would imply + how many times the mux has been toggled towards TOR A. + The port on which this API is called for can be referred using self.port. + + Args: + switch_count_type: + One of the following predefined constants, for getting the count type: + SWITCH_COUNT_MANUAL -> manual switch count + SWITCH_COUNT_AUTO -> automatic switch count + target: + One of the following predefined constants, the actual target to check the link on: + TARGET_TOR_A -> TORA, + TARGET_TOR_B -> TORB + clear_on_read: + a boolean, True if the count has to be reset after read to zero + , False if the count is not to be reset after read + Returns: + an integer, the number of times manually the Y-cable has been switched + """ + + curr_offset = YCable.OFFSET_EXTEND_SWITCH_COUNT_TYPE + + if switch_count_type == YCableBase.SWITCH_COUNT_MANUAL: + if target == YCableBase.TARGET_TOR_A: + buffer = bytearray([0]) + elif target == YCableBase.TARGET_TOR_B: + buffer = bytearray([1]) + else: + self.log_error("not a valid target") + return YCable.EEPROM_ERROR + elif switch_count_type == YCableBase.SWITCH_COUNT_AUTO: + if target == YCableBase.TARGET_TOR_A: + buffer = bytearray([2]) + elif target == YCableBase.TARGET_TOR_B: + buffer = bytearray([3]) + else: + self.log_error("not a valid target") + return YCable.EEPROM_ERROR + else: + self.log_error("not a valid switch_count_type, failed to get switch count") + return YCable.EEPROM_ERROR + + if self.platform_chassis is not None: + result = self.platform_chassis.get_sfp( + self.port).write_eeprom(curr_offset, 1, buffer) + if result is False: + return YCable.EEPROM_ERROR + time_start = time.time() + while(True): + done = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset, 1) + time_now = time.time() + time_diff = time_now - time_start + if done[0] & 0x80: + break + elif time_diff >= YCable.EXTEND_SWITCH_CNT_TIMEOUT_SECS: + return YCable.EEPROM_TIMEOUT_ERROR + + curr_offset = YCable.OFFSET_EXTEND_SWITCH_COUNT + msb_result = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset + 3, 1) + msb_result_1 = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset + 2, 1) + msb_result_2 = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset + 1, 1) + lsb_result = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset, 1) + count = (msb_result[0] << 24 | msb_result_1[0] << 16 | msb_result_2[0] << 8 | lsb_result[0]) + + if clear_on_read: + curr_offset = YCable.OFFSET_CLEAR_SWITCH_COUNT + result = self.platform_chassis.get_sfp( + self.port).write_eeprom(curr_offset, 1, buffer) + if result is False: + return YCable.EEPROM_ERROR + else: + self.log_error("platform_chassis is not loaded, failed to get switch count target") + return YCable.EEPROM_ERROR + + return count + + def get_target_cursor_values(self, lane, target): + """ + This API returns the cursor equalization parameters for a target(NIC, TOR_A, TOR_B). + This includes pre one, pre two, main, post one, post two, post three cursor values + If any of the value is not available please return None for that filter + The port on which this API is called for can be referred using self.port. + + Args: + lane: + an Integer, the lane on which to collect the cursor values + 1 -> lane 1, + 2 -> lane 2 + 3 -> lane 3 + 4 -> lane 4 + target: + One of the following predefined constants, the actual target to get the cursor values on: + TARGET_NIC -> NIC, + TARGET_TOR_A -> TORA, + TARGET_TOR_B -> TORB + Returns: + a list, with pre one, pre two, main, post one, post two, post three cursor values in the order + """ + curr_offset = YCable.OFFSET_NIC_CURSOR_VALUES + + result = [] + + if self.platform_chassis is not None: + pre1 = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset + (target)*20 + (lane-1)*5, 1) + result.append(c_int8(pre1[0]).value) + pre2 = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset + (target)*20 + (lane-1)*5 + 1, 1) + result.append(c_int8(pre2[0]).value) + main = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset + (target)*20 + (lane-1)*5 + 2, 1) + result.append(c_int8(main[0]).value) + post1 = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset + (target)*20 + (lane-1)*5 + 3, 1) + result.append(c_int8(post1[0]).value) + post2 = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset + (target)*20 + (lane-1)*5 + 4, 1) + result.append(c_int8(post2[0]).value) + else: + self.log_error("platform_chassis is not loaded, failed to get target cursor values") + return YCable.EEPROM_ERROR + + return result + + def set_target_cursor_values(self, lane, cursor_values, target): + """ + This API sets the cursor equalization parameters for a target(NIC, TOR_A, TOR_B). + This includes pre one, pre two, main, post one, post two etc. cursor values + The port on which this API is called for can be referred using self.port. + + Args: + lane: + an Integer, the lane on which to collect the cursor values + 1 -> lane 1, + 2 -> lane 2 + 3 -> lane 3 + 4 -> lane 4 + cursor_values: + a list, with pre one, pre two, main, post one, post two cursor, post three etc. values in the order + target: + One of the following predefined constants, the actual target to get the cursor values on: + TARGET_NIC -> NIC, + TARGET_TOR_A -> TORA, + TARGET_TOR_B -> TORB + Returns: + a boolean, True if cursor values setting is successful + , False if cursor values setting is not successful + """ + curr_offset = YCable.OFFSET_NIC_CURSOR_VALUES + idx = 0 + if self.platform_chassis is not None: + for data in cursor_values: + data = data & 0xFF + buffer = bytearray([data]) + self.platform_chassis.get_sfp(self.port).write_eeprom( + curr_offset + (target)*20 + (lane-1)*5 + idx, 1, buffer) + idx += 1 + else: + self.log_error("platform_chassis is not loaded, failed to get target cursor values") + return YCable.EEPROM_ERROR + + return True + + def get_firmware_version(self, target): + """ + This routine should return the active, inactive and next (committed) + firmware running on the target. Each of the version values in this context + could be a string with a major and minor number and a build value. + The port on which this API is called for can be referred using self.port. + + Args: + target: + One of the following predefined constants, the actual target to get the firmware version on: + TARGET_NIC -> NIC, + TARGET_TOR_A -> TORA, + TARGET_TOR_B -> TORB + Returns: + a Dictionary: + with version_active, version_inactive and version_next keys + and their corresponding values + + """ + vsc_req_form = [None] * (YCable.VSC_CMD_ATTRIBUTE_LENGTH) + vsc_req_form[YCable.VSC_BYTE_OPCODE] = YCable.VSC_OPCODE_FWUPD + vsc_req_form[YCable.VSC_BYTE_OPTION] = YCable.FWUPD_OPTION_GET_INFO + self.send_vsc(vsc_req_form) + + data = bytearray(YCable.FIRMWARE_INFO_PAYLOAD_SIZE) + + if self.platform_chassis is not None: + for byte_idx in range(0, YCable.FIRMWARE_INFO_PAYLOAD_SIZE): + curr_offset = 0xfc * 128 + 128 + byte_idx + read_out = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset, 1) + data[byte_idx] = read_out[0] + else: + self.log_error("platform_chassis is not loaded, failed to get NIC lanes active") + return YCable.EEPROM_ERROR + + result = {} + NUM_MCU_SIDE = 3 + + base_addr = int(target * (YCable.FIRMWARE_INFO_PAYLOAD_SIZE / NUM_MCU_SIDE)) + rev_major_slot1 = struct.unpack_from('> 0) & 0xFF + vsc_req_form[YCable.VSC_BYTE_ADDR1] = (fw_img_offset >> 8) & 0xFF + vsc_req_form[YCable.VSC_BYTE_ADDR2] = (fw_img_offset >> 16) & 0xFF + vsc_req_form[YCable.VSC_BYTE_ADDR3] = (fw_img_offset >> 24) & 0xFF + vsc_req_form[YCable.VSC_BYTE_CHKSUM_MSB] = (checksum >> 8) & 0xFF + vsc_req_form[YCable.VSC_BYTE_CHKSUM_LSB] = (checksum >> 0) & 0xFF + status = self.send_vsc(vsc_req_form) + + if status == YCable.MCU_EC_NO_ERROR: + chunk_idx += 1 + retry_count = 0 + else: + self.log_error('Firmware binary transfer error (error code:%04X)' % (status)) + + if retry_count == 3: + self.log_error('Retry Xfer Fw Bin Error, abort firmware update') + self.download_firmware_status = self.FIRMWARE_DOWNLOAD_STATUS_FAILED + return YCableBase.FIRMWARE_DOWNLOAD_FAILURE + retry_count += 1 + + ''' + Complete the local side firmware transferring + ''' + vsc_req_form = [None] * (YCable.VSC_CMD_ATTRIBUTE_LENGTH) + vsc_req_form[YCable.VSC_BYTE_OPCODE] = YCable.VSC_OPCODE_FWUPD + vsc_req_form[YCable.VSC_BYTE_OPTION] = YCable.FWUPD_OPTION_LOCAL_XFER_COMPLETE + status = self.send_vsc(vsc_req_form) + if status != YCable.MCU_EC_NO_ERROR: + self.log_error('Veriyf firmware binary error (error code:0x%04X)' % (status)) + self.download_firmware_status = self.FIRMWARE_DOWNLOAD_STATUS_FAILED + return YCableBase.FIRMWARE_DOWNLOAD_FAILURE + + ''' + transfer firmware image from local side MCU to the other two via UART + ''' + vsc_req_form = [None] * (YCable.VSC_CMD_ATTRIBUTE_LENGTH) + vsc_req_form[YCable.VSC_BYTE_OPCODE] = YCable.VSC_OPCODE_FWUPD + vsc_req_form[YCable.VSC_BYTE_OPTION] = YCable.FWUPD_OPTION_UART_XFER + status = self.send_vsc(vsc_req_form) + if status != YCable.MCU_EC_NO_ERROR: + self.log_error('Firmware binary UART transfer error (error code:0x%04X)' % (status)) + self.download_firmware_status = self.FIRMWARE_DOWNLOAD_STATUS_FAILED + return YCableBase.FIRMWARE_DOWNLOAD_FAILURE + + vsc_req_form = [None] * (YCable.VSC_CMD_ATTRIBUTE_LENGTH) + vsc_req_form[YCable.VSC_BYTE_OPCODE] = YCable.VSC_OPCODE_FWUPD + vsc_req_form[YCable.VSC_BYTE_OPTION] = YCable.FWUPD_OPTION_UART_XFER_STATUS + status = self.send_vsc(vsc_req_form) + if status != YCable.MCU_EC_NO_ERROR: + self.log_error( + 'Get firmware binary UART transfer status error (error code:0x%04X)' % (status)) + self.download_firmware_status = self.FIRMWARE_DOWNLOAD_STATUS_FAILED + return YCableBase.FIRMWARE_DOWNLOAD_FAILURE + + busy = self.read_mmap(YCable.MIS_PAGE_FC, 128) + self.read_mmap(YCable.MIS_PAGE_FC, 129) + self.read_mmap(YCable.MIS_PAGE_FC, 130) + self.read_mmap(YCable.MIS_PAGE_FC, 131) + + while busy != 0: + vsc_req_form = [None] * (YCable.VSC_CMD_ATTRIBUTE_LENGTH) + vsc_req_form[YCable.VSC_BYTE_OPCODE] = YCable.VSC_OPCODE_FWUPD + vsc_req_form[YCable.VSC_BYTE_OPTION] = YCable.FWUPD_OPTION_UART_XFER_STATUS + status = self.send_vsc(vsc_req_form) + if status != YCable.MCU_EC_NO_ERROR: + self.log_error( + 'Get firmware binary UART transfer status error (error code:0x%04X)' % (status)) + + self.download_firmware_status = self.FIRMWARE_DOWNLOAD_STATUS_FAILED + return YCableBase.FIRMWARE_DOWNLOAD_FAILURE + + time.sleep(0.2) + busy = self.read_mmap(YCable.MIS_PAGE_FC, 128) + self.read_mmap(YCable.MIS_PAGE_FC, 129) + self.read_mmap(YCable.MIS_PAGE_FC, 130) + self.read_mmap(YCable.MIS_PAGE_FC, 131) + + self.download_firmware_status = self.FIRMWARE_DOWNLOAD_STATUS_NOT_INITIATED_OR_FINISHED + else: + self.log_error("platform_chassis is not loaded, failed to download firmware") + return YCable.EEPROM_ERROR + + return YCableBase.FIRMWARE_DOWNLOAD_SUCCESS + + def activate_firmware(self, fwfile=None, hitless=False): + """ + This routine should activate the downloaded firmware on all the + components of the Y cable of the port for which this API is called.. + This API is meant to be used in conjunction with download_firmware API, and + should be called once download_firmware API is succesful. + This means that the firmware which has been downloaded should be + activated (start being utilized by the cable) once this API is + successfully executed. + The port on which this API is called for can be referred using self.port. + + Args: + fwfile (optional): + a string, a path to the file which contains the firmware image. + Note that the firmware file can be in the format of the vendor's + choosing (binary, archive, etc.). But note that it should be one file + which contains firmware for all components of the Y-cable. In case the + vendor chooses to pass this file in activate_firmware, the API should + have the logic to retreive the firmware version from this file + which has to be activated on the components of the Y-Cable + this API has been called for. + If None is passed for fwfile, the cable should activate whatever + firmware is marked to be activated next. + If provided, it should retreive the firmware version(s) from this file, ensure + they are downloaded on the cable, then activate them. + + hitless (optional): + a boolean, True, Hitless upgrade: it will backup/restore the current state + (ex. variables of link status, API attributes...etc.) before + and after firmware upgrade. + a boolean, False, Non-hitless upgrade: it will update the firmware regardless + the current status, a link flip can be observed during the upgrade. + Returns: + One of the following predefined constants: + FIRMWARE_ACTIVATE_SUCCESS + FIRMWARE_ACTIVATE_FAILURE + """ + if self.platform_chassis is not None: + if fwfile is None: + side = 0x7 + + vsc_req_form = [None] * (YCable.VSC_CMD_ATTRIBUTE_LENGTH) + vsc_req_form[YCable.VSC_BYTE_OPTION] = YCable.FWUPD_OPTION_COMMIT + vsc_req_form[YCable.VSC_BYTE_OPCODE] = YCable.VSC_OPCODE_FWUPD + vsc_req_form[YCable.VSC_BYTE_ADDR0] = side + status = self.send_vsc(vsc_req_form) + if status != YCable.MCU_EC_NO_ERROR: + self.log_error(YCable.MCU_ERROR_CODE_STRING[status]) + return YCableBase.FIRMWARE_ACTIVATE_FAILURE + + vsc_req_form = [None] * (YCable.VSC_CMD_ATTRIBUTE_LENGTH) + vsc_req_form[YCable.VSC_BYTE_OPTION] = YCable.FWUPD_OPTION_RUN + vsc_req_form[YCable.VSC_BYTE_OPCODE] = YCable.VSC_OPCODE_FWUPD + vsc_req_form[YCable.VSC_BYTE_ADDR0] = side + vsc_req_form[YCable.VSC_BYTE_ADDR1] = hitless + status = self.send_vsc(vsc_req_form) + time.sleep(5) + if status != YCable.MCU_EC_NO_ERROR: + self.log_error(YCable.MCU_ERROR_CODE_STRING[status]) + return YCableBase.FIRMWARE_ACTIVATE_FAILURE + else: + inFile = open(fwfile, 'rb') + fwImage = bytearray(inFile.read()) + inFile.close() + + build_msb = struct.unpack_from(' NIC, + TARGET_TOR_A -> TORA, + TARGET_TOR_B -> TORB + + Returns: + a boolean, True if the cable is target reset + , False if the cable target is not reset + """ + + ''' + use firmare_run cmd to emulate module reset + ''' + if self.platform_chassis is not None: + if target != YCableBase.TARGET_NIC and target != YCableBase.TARGET_TOR_A and target != YCableBase.TARGET_TOR_B: + self.log_error("reset: unsupported target") + return False + + vsc_req_form = [None] * (YCable.VSC_CMD_ATTRIBUTE_LENGTH) + vsc_req_form[YCable.VSC_BYTE_OPTION] = YCable.FWUPD_OPTION_RUN + vsc_req_form[YCable.VSC_BYTE_OPCODE] = YCable.VSC_OPCODE_FWUPD + vsc_req_form[YCable.VSC_BYTE_ADDR0] = (1 << target) + vsc_req_form[YCable.VSC_BYTE_ADDR1] = 0 + status = self.send_vsc(vsc_req_form) + + if target == YCableBase.TARGET_NIC: + time.sleep(4) + else: + time.sleep(2) + + if status != YCable.MCU_EC_NO_ERROR: + self.log_error("unable to reset the module") + return False + else: + self.log_error("platform_chassis is not loaded, failed to reset") + return YCable.EEPROM_ERROR + + return True + + def create_port(self, speed, fec_mode_tor = YCableBase.FEC_MODE_NONE, fec_mode_nic = YCableBase.FEC_MODE_NONE, anlt_tor = False, anlt_nic = False): + """ + This API sets the mode of the cable/port for corresponding lane/FEC etc. configuration as specified. + The speed specifies which mode is supposed to be set 50G, 100G etc + the AN/LT specifies if auto-negotiation + link training (AN/LT) has to be enabled + Note that in case create_port is called multiple times, the most recent api call will take the precedence + on either of TOR side. + The port on which this API is called for can be referred using self.port. + + Args: + speed: + an Integer, the value for the link speed to be configured (in megabytes). + examples: + 50000 -> 50G + 100000 -> 100G + + fec_mode_tor: + One of the following predefined constants, the actual FEC mode for the ToR to be configured: + FEC_MODE_NONE, + FEC_MODE_RS, + FEC_MODE_FC + + fec_mode_nic: + One of the following predefined constants, the actual FEC mode for the nic to be configured: + FEC_MODE_NONE, + FEC_MODE_RS, + FEC_MODE_FC + + anlt_tor: + a boolean, True if auto-negotiation + link training (AN/LT) is to be enabled on ToR's + , False if auto-negotiation + link training (AN/LT) is not to be enabled on ToR's + + anlt_nic: + a boolean, True if auto-negotiation + link training (AN/LT) is to be enabled on nic + , False if auto-negotiation + link training (AN/LT) is not to be enabled on nic + + + Returns: + a boolean, True if the port is configured + , False if the port is not configured + """ + + if self.platform_chassis is not None: + mode = 0 + if speed == 50000: + mode |= (0 << 6) + elif speed == 100000: + mode |= (1 << 6) + else: + self.log_error("create port: unsupported speed:%d" % (speed)) + return False + + mode |= (1 << 0) if anlt_nic else (0 << 0) + mode |= (1 << 1) if anlt_tor else (0 << 1) + mode |= (1 << 3) if fec_mode_nic == YCableBase.FEC_MODE_RS else (0 << 3) + mode |= (1 << 4) if fec_mode_tor == YCableBase.FEC_MODE_RS else (0 << 4) + + curr_offset = YCable.OFFSET_NIC_MODE_CONFIGURATION + buffer = bytearray([mode]) + result = self.platform_chassis.get_sfp(self.port).write_eeprom(curr_offset, 1, buffer) + if result is False: + return result + else: + self.log_error("platform_chassis is not loaded, failed to create port") + return YCable.EEPROM_ERROR + + return True + + def get_speed(self): + """ + This API gets the mode of the cable for corresponding lane configuration. + The port on which this API is called for can be referred using self.port. + + Args: + + Returns: + speed: + an Integer, the value for the link speed is configured (in megabytes). + examples: + 50000 -> 50G + 100000 -> 100G + """ + + speed = 0 + if self.platform_chassis is not None: + curr_offset = YCable.OFFSET_NIC_MODE_CONFIGURATION + mode = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset, 1) + + if (mode[0] >> 6) == 0: + speed = 50000 + elif (mode[0] >> 6) == 1: + speed = 100000 + else: + self.log_error("unsupported speed") + return -1 + else: + self.log_error("platform_chassis is not loaded, failed to get speed") + return YCable.EEPROM_ERROR + + return speed + + def set_fec_mode(self, fec_mode, target): + """ + This API gets the FEC mode of the cable for which it is set to. + The port on which this API is called for can be referred using self.port. + + Args: + fec_mode: + One of the following predefined constants, the actual FEC mode for the port to be configured: + FEC_MODE_NONE, + FEC_MODE_RS, + FEC_MODE_FC + target: + One of the following predefined constants, the actual target to set the FEC mode on: + TARGET_NIC -> NIC, + TARGET_TOR_A -> TORA, + TARGET_TOR_B -> TORB + + + Returns: + a boolean, True if the FEC mode is configured + , False if the FEC mode is not configured + """ + + if self.platform_chassis is not None: + curr_offset = YCable.OFFSET_NIC_MODE_CONFIGURATION + mode = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset, 1) + + if target == YCableBase.TARGET_NIC: + mode[0] &= ~(1 << 3) + mode[0] |= (1 << 3) if fec_mode == YCableBase.FEC_MODE_RS else (0 << 3) + elif target == YCableBase.TARGET_TOR_A or target == YCableBase.TARGET_TOR_B: + mode[0] &= ~(1 << 4) + mode[0] |= (1 << 4) if fec_mode == YCableBase.FEC_MODE_RS else (0 << 4) + else: + self.log_error("set fec mode: unsupported target") + return False + + result = self.platform_chassis.get_sfp(self.port).write_eeprom(curr_offset, 1, mode) + if result is False: + return result + else: + self.log_error("platform_chassis is not loaded, failed to set fec mode") + return YCable.EEPROM_ERROR + + return True + + def get_fec_mode(self, target): + """ + This API gets the FEC mode of the cable which it is set to. + The port on which this API is called for can be referred using self.port. + + Args: + target: + One of the following predefined constants, the actual target to FEC mode on: + TARGET_NIC -> NIC, + TARGET_TOR_A -> TORA, + TARGET_TOR_B -> TORB + + Returns: + fec_mode: + One of the following predefined constants, the actual FEC mode for the port to be configured: + FEC_MODE_NONE, + FEC_MODE_RS, + FEC_MODE_FC + """ + + fec_mode = YCableBase.FEC_MODE_NONE + if self.platform_chassis is not None: + curr_offset = YCable.OFFSET_NIC_MODE_CONFIGURATION + mode = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset, 1) + + if target == YCableBase.TARGET_NIC: + if mode[0] & (1 << 3): + fec_mode = YCableBase.FEC_MODE_RS + elif target == YCableBase.TARGET_TOR_A or target == YCableBase.TARGET_TOR_B: + if mode[0] & (1 << 4): + fec_mode = YCableBase.FEC_MODE_RS + else: + self.log_error("get fec mode: unsupported target") + else: + self.log_error("platform_chassis is not loaded, failed to get fec mode") + return YCable.EEPROM_ERROR + + return fec_mode + + def set_anlt(self, enable, target): + """ + This API enables/disables the cable auto-negotiation + link training (AN/LT). + The port on which this API is called for can be referred using self.port. + + Args: + enable: + a boolean, True if auto-negotiation + link training (AN/LT) is to be enabled + , False if auto-negotiation + link training (AN/LT) is not to be enabled + target: + One of the following predefined constants, the actual target to get the stats on: + TARGET_NIC -> NIC, + TARGET_TOR_A -> TORA, + TARGET_TOR_B -> TORB + + + Returns: + a boolean, True if the auto-negotiation + link training (AN/LT) enable/disable specified is configured + , False if the auto-negotiation + link training (AN/LT) enable/disable specified is not configured + """ + + if self.platform_chassis is not None: + curr_offset = YCable.OFFSET_NIC_MODE_CONFIGURATION + mode = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset, 1) + + if target == YCableBase.TARGET_NIC: + mode[0] &= ~(1 << 0) + mode[0] |= (1 << 0) if enable else (0 << 0) + elif target == YCableBase.TARGET_TOR_A or target == YCableBase.TARGET_TOR_B: + mode[0] &= ~(1 << 1) + mode[0] |= (1 << 1) if enable else (0 << 1) + else: + self.log_error("set anlt: unsupported target") + return False + + result = self.platform_chassis.get_sfp(self.port).write_eeprom(curr_offset, 1, mode) + if result is False: + return result + else: + self.log_error("platform_chassis is not loaded, failed to set anlt") + return YCable.EEPROM_ERROR + + return True + + def get_anlt(self, target): + """ + This API gets the auto-negotiation + link training (AN/LT) mode of the cable for corresponding port. + The port on which this API is called for can be referred using self.port. + + Args: + target: + One of the following predefined constants, the actual target to get the AN/LT on: + TARGET_NIC -> NIC, + TARGET_TOR_A -> TORA, + TARGET_TOR_B -> TORB + + Returns: + a boolean, True if auto-negotiation + link training (AN/LT) is enabled + , False if auto-negotiation + link training (AN/LT) is not enabled + """ + + anlt_mode = False + if self.platform_chassis is not None: + curr_offset = YCable.OFFSET_NIC_MODE_CONFIGURATION + mode = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset, 1) + + if target == YCableBase.TARGET_NIC: + if mode[0] & (1 << 0): + anlt_mode = True + + elif target == YCableBase.TARGET_TOR_A or target == YCableBase.TARGET_TOR_B: + if mode[0] & (1 << 1): + anlt_mode = True + else: + self.log_error("get anlt: unsupported target") + else: + self.log_error("platform_chassis is not loaded, failed to get anlt") + return YCable.EEPROM_ERROR + + return anlt_mode + + def get_event_log(self, clear_on_read=False): + """ + This API returns the event log of the cable + The port on which this API is called for can be referred using self.port. + + Args: + clear_on_read: + a boolean, True if the log has to be cleared after read + , False if the log is not to be cleared after read + + Returns: + list: + a list of strings which correspond to the event logs of the cable + """ + + result = [] + + if self.platform_chassis is not None: + if (clear_on_read): + vsc_req_form = [None] * (YCable.VSC_CMD_ATTRIBUTE_LENGTH) + vsc_req_form[YCable.VSC_BYTE_OPCODE] = YCable.VSC_OPCODE_EVENTLOG + vsc_req_form[YCable.VSC_BYTE_OPTION] = YCable.EVENTLOG_OPTION_CLEAR + self.send_vsc(vsc_req_form) + + last_read_id = -1 + + event_type_str = { + 0x0000: 'EventLog Header', + 0x0001: 'Auto Switch', + 0x0002: 'Manual Switch', + 0x0003: 'BER Measurement', + 0x0004: 'PRBS Generation', + 0x0005: 'Loopback Mode', + 0x0006: 'Eye Measurement', + 0x0007: 'Epoch Time', + 0x0008: 'Temperature', + 0x0009: 'Voltage', + 0x0100: 'Link Down', + 0x0200: 'Firmware Update', + } + + while (True): + vsc_req_form = [None] * (YCable.VSC_CMD_ATTRIBUTE_LENGTH) + vsc_req_form[YCable.VSC_BYTE_OPCODE] = YCable.VSC_OPCODE_EVENTLOG + vsc_req_form[YCable.VSC_BYTE_OPTION] = YCable.EVENTLOG_OPTION_DUMP + vsc_req_form[YCable.VSC_BYTE_ADDR0] = (last_read_id >> 0) & 0xFF + vsc_req_form[YCable.VSC_BYTE_ADDR1] = (last_read_id >> 8) & 0xFF + vsc_req_form[YCable.VSC_BYTE_ADDR2] = (last_read_id >> 16) & 0xFF + vsc_req_form[YCable.VSC_BYTE_ADDR3] = (last_read_id >> 24) & 0xFF + status = self.send_vsc(vsc_req_form) + + if status == YCable.MCU_EC_NO_ERROR: + fetch_cnt = self.read_mmap(YCable.MIS_PAGE_VSC, 134) + if (fetch_cnt == 0): + break + else: + self.log_error("download event log error(error code:%04X)" % (status)) + return None + + event_data = bytearray(YCable.EVENTLOG_PAYLOAD_SIZE * fetch_cnt) + + for byte_offset in range(0, YCable.EVENTLOG_PAYLOAD_SIZE * fetch_cnt): + byte_data = self.read_mmap(YCable.MIS_PAGE_FC, 128 + byte_offset) + event_data[byte_offset] = byte_data + + for curr_idx in range(0, fetch_cnt): + byte_offset = curr_idx * YCable.EVENTLOG_PAYLOAD_SIZE + event_id = struct.unpack_from(' NIC, + TARGET_TOR_A -> TORA, + TARGET_TOR_B -> TORB + + Returns: + a dictionary: + a detailed format agreed upon by vendors + """ + + pcs_stats = {} + + if self.platform_chassis is not None: + quad = 0 + ch = 0 + if target == YCableBase.TARGET_NIC: + quad = 0 + elif target == YCableBase.TARGET_TOR_A: + quad = 4 + elif target == YCableBase.TARGET_TOR_B: + quad = 6 + else: + self.log_error("get pcs stats: unsupported target") + return pcs_stats + + base = (quad << 20) + 0xa0000 + Rx = (ch * 35) + 0x40 + pcs_stats['Rx Frames OK'] = self.tcm_read(base + 4 * (Rx + 6)) + pcs_stats['Rx Chk SEQ Errs'] = self.tcm_read(base + 4 * (Rx + 7)) + pcs_stats['Rx Alignment Errs'] = self.tcm_read(base + 4 * (Rx + 2)) + pcs_stats['Rx In Errs'] = self.tcm_read(base + 4 * (Rx + 9)) + pcs_stats['Rx FrameTooLong Errs'] = self.tcm_read(base + 4 * (Rx + 4)) + pcs_stats['Rx Octets OK'] = self.tcm_read(base + 4 * (Rx + 1)) + + Tx = (ch * 26) + 0xC + pcs_stats['Tx Frames OK'] = self.tcm_read(base + 4 * (Tx + 3)) + pcs_stats['Tx Out Errs'] = self.tcm_read(base + 4 * (Tx + 5)) + pcs_stats['Tx Octets OK'] = self.tcm_read(base + 4 * (Tx + 1)) + + else: + self.log_error("platform_chassis is not loaded, failed to get pcs statisics") + return YCable.EEPROM_ERROR + + return pcs_stats + + def get_fec_stats(self, target): + """ + This API returns the FEC statistics of the cable + The port on which this API is called for can be referred using self.port. + + Args: + target: + One of the following predefined constants, the actual target to get the stats on: + TARGET_NIC -> NIC, + TARGET_TOR_A -> TORA, + TARGET_TOR_B -> TORB + + Returns: + a dictionary: + a detailed format agreed upon by vendors + """ + fec_stats = {} + + if self.platform_chassis is not None: + quad = 0 + ch = 0 + if target == YCableBase.TARGET_NIC: + quad = 0 + elif target == YCableBase.TARGET_TOR_A: + quad = 4 + elif target == YCableBase.TARGET_TOR_B: + quad = 6 + else: + self.log_error("get fec stats: unsupported target") + return fec_stats + + base = (quad << 20) + 0xA2800 + + self.tcm_write(base + (3 << 2), 0x10000000 | (1 << ch)) + + lsb = self.tcm_read(base + (8 << 2)) + msb = self.tcm_read(base + (0 << 2)) + fec_stats['Total recevied CW'] = (msb << 32) | lsb + + lsb = self.tcm_read(base + (9 << 2)) + msb = self.tcm_read(base + (0 << 2)) + fec_stats['Total correct CW'] = (msb << 32) | lsb + + lsb = self.tcm_read(base + (10 << 2)) + msb = self.tcm_read(base + (0 << 2)) + fec_stats['Total corrected CW'] = (msb << 32) | lsb + + fec_stats['Total uncorrectable CW'] = self.tcm_read(base + (11 << 2)) + + lsb = self.tcm_read(base + (12 << 2)) + msb = self.tcm_read(base + ( 0 << 2)) + fec_stats['Corrected CW ( 1 sym err)'] = (msb << 32) | lsb + lsb = self.tcm_read(base + (13 << 2)) + msb = self.tcm_read(base + ( 0 << 2)) + fec_stats['Corrected CW ( 2 sym err)'] = (msb << 32) | lsb + fec_stats['Corrected CW ( 3 sym err)'] = self.tcm_read(base + (14 << 2)) + fec_stats['Corrected CW ( 4 sym err)'] = self.tcm_read(base + (15 << 2)) + fec_stats['Corrected CW ( 5 sym err)'] = self.tcm_read(base + (16 << 2)) + fec_stats['Corrected CW ( 6 sym err)'] = self.tcm_read(base + (17 << 2)) + fec_stats['Corrected CW ( 7 sym err)'] = self.tcm_read(base + (18 << 2)) + fec_stats['Corrected CW ( 8 sym err)'] = self.tcm_read(base + (19 << 2)) + fec_stats['Corrected CW ( 9 sym err)'] = self.tcm_read(base + (20 << 2)) + fec_stats['Corrected CW (10 sym err)'] = self.tcm_read(base + (21 << 2)) + fec_stats['Corrected CW (11 sym err)'] = self.tcm_read(base + (22 << 2)) + fec_stats['Corrected CW (12 sym err)'] = self.tcm_read(base + (23 << 2)) + fec_stats['Corrected CW (13 sym err)'] = self.tcm_read(base + (24 << 2)) + fec_stats['Corrected CW (14 sym err)'] = self.tcm_read(base + (25 << 2)) + fec_stats['Corrected CW (15 sym err)'] = self.tcm_read(base + (26 << 2)) + else: + self.log_error("platform_chassis is not loaded, failed to get fec statisics") + return YCable.EEPROM_ERROR + + return fec_stats + + def set_autoswitch_hysteresis_timer(self, time): + """ + This API sets the hysteresis timer of the cable. This is basically the time in auto-switch mode + which the mux has to wait after toggling it once, before again toggling the mux to a different ToR + The port on which this API is called for can be referred using self.port. + + Args: + time: + an Integer, the time value for hysteresis to be set in milliseconds + + Returns: + a boolean, True if the time is configured + , False if the time is not configured + """ + curr_offset = YCable.OFFSET_AUTO_SWITCH_HYSTERESIS + + buffer = bytearray([time]) + + if self.platform_chassis is not None: + self.platform_chassis.get_sfp(self.port).write_eeprom(curr_offset, 1, buffer) + else: + self.log_error("platform_chassis is not loaded, failed to set autoswitch hysteresis timer") + return YCable.EEPROM_ERROR + + return True + + def get_autoswitch_hysteresis_timer(self): + """ + This API gets the hysteresis timer of the cable. This is basically the time in auto-switch mode + which the mux has to wait after toggling it once, before again toggling the mux to a different ToR + The port on which this API is called for can be referred using self.port. + + Args: + + Returns: + time: + an Integer, the time value for hysteresis is configured in milliseconds + """ + curr_offset = YCable.OFFSET_AUTO_SWITCH_HYSTERESIS + + if self.platform_chassis is not None: + time = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset, 1) + else: + self.log_error("platform_chassis is not loaded, failed to get autoswitch hysteresis timer") + return YCable.EEPROM_ERROR + + return int(time[0]) + + def restart_anlt(self, target): + """ + This API restarts auto-negotiation + link training (AN/LT) mode + The port on which this API is called for can be referred using self.port. + + Args: + target: + One of the following predefined constants, the actual target to restart AN/LT on: + TARGET_NIC -> NIC, + TARGET_TOR_A -> TORA, + TARGET_TOR_B -> TORB + + Returns: + a boolean, True if restart is successful + , False if the restart is not successful + """ + + if self.platform_chassis is not None: + lane = 0 + if target == YCableBase.TARGET_NIC: + lane = 0 + elif target == YCableBase.TARGET_TOR_A: + lane = 12 + elif target == YCableBase.TARGET_TOR_B: + lane = 20 + else: + self.log_error("restart anlt: unsupported target") + return False + + self.fw_cmd_ext(0x7040, 0, lane) + else: + self.log_error("platform_chassis is not loaded, failed to restart anlt") + return YCable.EEPROM_ERROR + + return True + + def get_anlt_stats(self, target): + """ + This API returns auto-negotiation + link training (AN/LT) mode statistics + The port on which this API is called for can be referred using self.port. + + Args: + target: + One of the following predefined constants, the actual target to get AN/LT stats on: + TARGET_NIC -> NIC, + TARGET_TOR_A -> TORA, + TARGET_TOR_B -> TORB + + Returns: + a dictionary: + a detailed format agreed upon by vendors + """ + + anlt_stat = {} + if self.platform_chassis is not None: + an_sm = 0 + if target == YCableBase.TARGET_NIC: + an_sm = self.reg_read(0x0048) + lanes=[0,4] + elif target == YCableBase.TARGET_TOR_A: + an_sm = self.reg_read(0x5448) + lanes=[12,16] + elif target == YCableBase.TARGET_TOR_B: + an_sm = self.reg_read(0x5C48) + lanes=[20,24] + else: + self.log_error("get anlt stats: unsupported target") + + anlt_stat['AN_StateMachine'] = an_sm + + for idx, ln in enumerate(range(lanes[0], lanes[1])): + lt_tx1 = self.reg_read(0xB3 | 0x200 * ln) + lt_tx2 = self.reg_read(0xB4 | 0x200 * ln) + anlt_stat['LT_TX_lane%d' % idx] = [(lt_tx1 >> 8) & 0xFF, lt_tx1 & 0xFF, (lt_tx2 >> 8) & 0xFF, lt_tx2 & 0xFF] + else: + self.log_error("platform_chassis is not loaded, failed to get anlt stats") + return YCable.EEPROM_ERROR + + return anlt_stat + +############################################################################################# +### Debug Functionality ### +############################################################################################# + + def set_debug_mode(self, enable): + """ + This API enables/disables a debug mode that the port is now + going to be run on. If enabled, this means that PRBS/Loopback etc. type diagnostic mode + is now going to be run on the port and hence normal traffic will be disabled + on it if enabled and vice-versa if disabled. + enable is typically to be used at the software level to inform the software + that debug APIs will be called afterwords. + disable will disable any previously enabled debug functionality inside the cable + so that traffic can pass through. Also it'll inform the software to come out of the debug mode. + The port on which this API is called for can be referred using self.port. + + Args: + enable: + a boolean, True if the debug mode needs to be enabled + , False if the debug mode needs to be disabled + + + Returns: + a boolean, True if the enable is successful + , False if the enable failed + """ + + raise NotImplementedError + + def get_debug_mode(self): + """ + This API checks if a debug mode is currently being run on the port + for which this API is called for. + This means that PRBS/Loopback etc. type diagnostic mode + if any are being run on the port this should return True else False. + The port on which this API is called for can be referred using self.port. + + Args: + + Returns: + a boolean, True if debug mode enabled + , False if debug mode not enabled + """ + + raise NotImplementedError + + def enable_prbs_mode(self, target, mode_value, lane_mask, direction=YCableBase.PRBS_DIRECTION_BOTH): + """ + This API configures and enables the PRBS mode/type depending upon the mode_value the user provides. + The mode_value configures the PRBS Type for generation and BER sensing on a per side basis. + Target is an integer for selecting which end of the Y cable we want to run PRBS on. + LaneMap specifies the lane configuration to run the PRBS on. + Note that this is a diagnostic mode command and must not run during normal traffic/switch operation + The port on which this API is called for can be referred using self.port. + + Args: + target: + One of the following predefined constants, the target on which to enable the PRBS: + EYE_PRBS_LOOPBACK_TARGET_LOCAL -> local side, + EYE_PRBS_LOOPBACK_TARGET_TOR_A -> TOR A + EYE_PRBS_LOOPBACK_TARGET_TOR_B -> TOR B + EYE_PRBS_LOOPBACK_TARGET_NIC -> NIC + mode_value: + an Integer, the mode/type for configuring the PRBS mode. + + lane_mask: + an Integer, representing the lane_mask to be run PRBS on + 0bit for lane 0, 1bit for lane1 and so on. + for example 3 -> 0b'0011, means running on lane0 and lane1 + direction: + One of the following predefined constants, the direction to run the PRBS: + PRBS_DIRECTION_BOTH + PRBS_DIRECTION_GENERATOR + PRBS_DIRECTION_CHECKER + + Returns: + a boolean, True if the enable is successful + , False if the enable failed + + """ + + buffer = bytearray([target]) + curr_offset = YCable.OFFSET_TARGET + + if self.platform_chassis is not None: + result = self.platform_chassis.get_sfp(self.port).write_eeprom(curr_offset, 1, buffer) + if result is False: + return result + + buffer = bytearray([0]) + curr_offset = YCable.OFFSET_ENABLE_PRBS + result = self.platform_chassis.get_sfp(self.port).write_eeprom(curr_offset, 1, buffer) + if result is False: + return result + + buffer = bytearray([mode_value]) + curr_offset = YCable.OFFSET_CONFIGURE_PRBS_TYPE + result = self.platform_chassis.get_sfp(self.port).write_eeprom(curr_offset, 1, buffer) + if result is False: + return result + + buffer = bytearray([lane_mask]) + curr_offset = YCable.OFFSET_ENABLE_PRBS + result = self.platform_chassis.get_sfp(self.port).write_eeprom(curr_offset, 1, buffer) + + else: + self.log_error("platform_chassis is not loaded, failed to enable the PRBS mode") + return YCable.EEPROM_ERROR + + return result + + def disable_prbs_mode(self, target, direction): + """ + This API disables the PRBS mode on the physical port. + The port on which this API is called for can be referred using self.port. + + Args: + target: + One of the following predefined constants, the target on which to disable the PRBS: + EYE_PRBS_LOOPBACK_TARGET_LOCAL -> local side, + EYE_PRBS_LOOPBACK_TARGET_TOR_A -> TOR A + EYE_PRBS_LOOPBACK_TARGET_TOR_B -> TOR B + EYE_PRBS_LOOPBACK_TARGET_NIC -> NIC + direction: + One of the following predefined constants, the direction to run the PRBS: + PRBS_DIRECTION_BOTH + PRBS_DIRECTION_GENERATOR + PRBS_DIRECTION_CHECKER + + Returns: + a boolean, True if the disable is successful + , False if the disable failed + """ + + buffer = bytearray([target]) + curr_offset = YCable.OFFSET_TARGET + + if self.platform_chassis is not None: + result = self.platform_chassis.get_sfp( + self.port).write_eeprom(curr_offset, 1, buffer) + if result is False: + return result + buffer = bytearray([0]) + curr_offset = YCable.OFFSET_ENABLE_PRBS + result = self.platform_chassis.get_sfp( + self.port).write_eeprom(curr_offset, 1, buffer) + + else: + self.log_error("platform_chassis is not loaded, failed to disable the PRBS mode") + return YCable.EEPROM_ERROR + + return result + + def enable_loopback_mode(self, target, lane_mask, mode=YCableBase.LOOPBACK_MODE_NEAR_END): + """ + This API configures and enables the Loopback mode on the port user provides. + Target is an integer for selecting which end of the Y cable we want to run loopback on. + LaneMap specifies the lane configuration to run the loopback on. + Note that this is a diagnostic mode command and must not run during normal traffic/switch operation + The port on which this API is called for can be referred using self.port. + + Args: + target: + One of the following predefined constants, the target on which to enable the loopback: + EYE_PRBS_LOOPBACK_TARGET_LOCAL -> local side, + EYE_PRBS_LOOPBACK_TARGET_TOR_A -> TOR A + EYE_PRBS_LOOPBACK_TARGET_TOR_B -> TOR B + EYE_PRBS_LOOPBACK_TARGET_NIC -> NIC + mode: + One of the following predefined constants, the mode to be run for loopback: + LOOPBACK_MODE_NEAR_END + LOOPBACK_MODE_FAR_END + lane_mask: + an Integer, representing the lane_mask to be run loopback on + 0bit for lane 0, 1bit for lane1 and so on. + for example 3 -> 0b'0011, means running on lane0 and lane1 + + Returns: + a boolean, True if the enable is successful + , False if the enable failed + """ + + buffer = bytearray([target]) + curr_offset = YCable.OFFSET_TARGET + + if self.platform_chassis is not None: + result = self.platform_chassis.get_sfp( + self.port).write_eeprom(curr_offset, 1, buffer) + if result is False: + return result + buffer = bytearray([lane_mask]) + curr_offset = YCable.OFFSET_ENABLE_LOOPBACK + result = self.platform_chassis.get_sfp( + self.port).write_eeprom(curr_offset, 1, buffer) + + else: + self.log_error("platform_chassis is not loaded, failed to enable the loopback mode") + return YCable.EEPROM_ERROR + + return result + + def disable_loopback_mode(self, target): + """ + This API disables the Loopback mode on the port user provides. + Target is an integer for selecting which end of the Y cable we want to run loopback on. + The port on which this API is called for can be referred using self.port. + + Args: + target: + One of the following predefined constants, the target on which to disable the loopback: + EYE_PRBS_LOOPBACK_TARGET_LOCAL -> local side, + EYE_PRBS_LOOPBACK_TARGET_TOR_A -> TOR A + EYE_PRBS_LOOPBACK_TARGET_TOR_B -> TOR B + EYE_PRBS_LOOPBACK_TARGET_NIC -> NIC + + Returns: + a boolean, True if the disable is successful + , False if the disable failed + """ + buffer = bytearray([target]) + curr_offset = YCable.OFFSET_TARGET + + if self.platform_chassis is not None: + result = self.platform_chassis.get_sfp( + self.port).write_eeprom(curr_offset, 1, buffer) + if result is False: + return result + buffer = bytearray([0]) + curr_offset = YCable.OFFSET_ENABLE_LOOPBACK + result = self.platform_chassis.get_sfp( + self.port).write_eeprom(curr_offset, 1, buffer) + + else: + self.log_error("platform_chassis is not loaded, failed to disable the loopback mode") + return YCable.EEPROM_ERROR + + return result + + def get_loopback_mode(self, target): + """ + This API returns the Loopback mode on the port which it has been configured to + Target is an integer for selecting which end of the Y cable we want to run loopback on. + The port on which this API is called for can be referred using self.port. + + Args: + target: + One of the following predefined constants, the target on which to disable the loopback: + EYE_PRBS_LOOPBACK_TARGET_LOCAL -> local side, + EYE_PRBS_LOOPBACK_TARGET_TOR_A -> TOR A + EYE_PRBS_LOOPBACK_TARGET_TOR_B -> TOR B + EYE_PRBS_LOOPBACK_TARGET_NIC -> NIC + + Returns: + mode_value: + One of the following predefined constants, the mode to be run for loopback: + LOOPBACK_MODE_NONE + LOOPBACK_MODE_NEAR_END + LOOPBACK_MODE_FAR_END + """ + + if self.platform_chassis is not None: + buffer = bytearray([target]) + curr_offset = YCable.OFFSET_TARGET + + result = self.platform_chassis.get_sfp(self.port).write_eeprom(curr_offset, 1, buffer) + if result is False: + return -1 + + buffer = bytearray([0]) + curr_offset = YCable.OFFSET_SYNC_DEBUG_MODE + result = self.platform_chassis.get_sfp(self.port).write_eeprom(curr_offset, 1, buffer) + if result is False: + return -1 + time_start = time.time() + while(True): + done = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset, 1) + time_now = time.time() + time_diff = time_now - time_start + if done[0] == 1: + break + elif time_diff >= YCable.GET_DEBUG_MODE_TIMEOUT_SECS: + return YCable.EEPROM_TIMEOUT_ERROR + + curr_offset = YCable.OFFSET_ENABLE_LOOPBACK + result = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset, 1) + + if result[0]: + return YCableBase.LOOPBACK_MODE_NEAR_END + else: + self.log_error("platform_chassis is not loaded, failed to get loopback mode") + return YCable.EEPROM_ERROR + + return YCableBase.LOOPBACK_MODE_NONE + + def get_ber_info(self, target): + """ + This API returns the BER (Bit error rate) value for a specfic port. + The target could be local side, TOR_A, TOR_B, NIC etc. + The port on which this API is called for can be referred using self.port. + + Args: + target: + One of the following predefined constants, the target on which to get the BER: + EYE_PRBS_LOOPBACK_TARGET_LOCAL -> local side, + EYE_PRBS_LOOPBACK_TARGET_TOR_A -> TOR A + EYE_PRBS_LOOPBACK_TARGET_TOR_B -> TOR B + EYE_PRBS_LOOPBACK_TARGET_NIC -> NIC + Returns: + a list, with BER values of lane 0 lane 1 lane 2 lane 3 with corresponding index + """ + + buffer = bytearray([target]) + curr_offset = YCable.OFFSET_TARGET + + ber_result = [] + + if self.platform_chassis is not None: + result = self.platform_chassis.get_sfp( + self.port).write_eeprom(curr_offset, 1, buffer) + if result is False: + return result + buffer = bytearray([0]) + curr_offset = YCable.OFFSET_INITIATE_BER_MEASUREMENT + result = self.platform_chassis.get_sfp( + self.port).write_eeprom(curr_offset, 1, buffer) + if result is False: + return result + time_start = time.time() + while(True): + done = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset, 1) + time_now = time.time() + time_diff = time_now - time_start + if done[0] == 1: + break + elif time_diff >= YCable.BER_TIMEOUT_SECS: + return YCable.EEPROM_TIMEOUT_ERROR + + idx = 0 + curr_offset = YCable.OFFSET_LANE_1_BER_RESULT + for lane in range(YCable.MAX_NUM_LANES): + msb_result = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset+idx, 1) + lsb_result = self.platform_chassis.get_sfp(self.port).read_eeprom(curr_offset+1+idx, 1) + lane_result = msb_result[0] * math.pow(10, (lsb_result[0]-24)) + ber_result.append(lane_result) + idx += 2 + else: + self.log_error("platform_chassis is not loaded, failed to get ber info") + return YCable.EEPROM_ERROR + + return ber_result + + def debug_dump_registers(self, option=None): + """ + This API should dump all registers with meaningful values + for the cable to be diagnosed for proper functioning. + This means that for all the fields on relevant vendor-specific pages + this API should dump the appropriate fields with parsed values + which would help debug the Y-Cable + + Args: + option: + a string, the option param can be a string which if passed can help a vendor utilize it + as an input param or a concatenation of params for a function which they can call internally. + This essentially helps if the vendor chooses to dump only some of the registers instead of all + the registers, and thus provides more granularity for debugging/printing. + For example, the option can serdes_lane0, in this case the vendor would just dump + registers related to serdes lane 0. + + + Returns: + a Dictionary: + with all the relevant key-value pairs for all the meaningful fields + which would help diagnose the cable for proper functioning + """ + if self.platform_chassis is not None: + result = {} + result['pn'] = self.get_part_number() + result['sn'] = self.get_serial_number() + result['uart_stat'] = self.get_uart_stat() + result['nic_temp'] = self.get_nic_temperature() + result['nic_voltage'] = self.get_nic_voltage() + result['fw_init_status'] = self.get_dsp_fw_init_stat() + result['serdes_detect'] = self.get_dsp_link_Dect() + + lanes = [0,1,2,3,12,13,14,15,20,21,22,23] + + for ln in list(lanes): + data = self.get_serdes_params(ln) + serdes = {} + serdes['ch_est'] = struct.unpack_from('