mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-22 11:17:19 +00:00
440 lines
17 KiB
C
440 lines
17 KiB
C
/*-
|
||
* Copyright (c) 2013 George V. Neville-Neil
|
||
* All rights reserved.
|
||
*
|
||
* Redistribution and use in source and binary forms, with or without
|
||
* modification, are permitted provided that the following conditions
|
||
* are met:
|
||
* 1. Redistributions of source code must retain the above copyright
|
||
* notice, this list of conditions and the following disclaimer.
|
||
* 2. Redistributions in binary form must reproduce the above copyright
|
||
* notice, this list of conditions and the following disclaimer in the
|
||
* documentation and/or other materials provided with the distribution.
|
||
*
|
||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
* SUCH DAMAGE.
|
||
*
|
||
* $FreeBSD$
|
||
*/
|
||
|
||
/*
|
||
* The following set of constants are from Document SFF-8472
|
||
* "Diagnostic Monitoring Interface for Optical Transceivers" revision
|
||
* 11.3 published by the SFF Committee on June 11, 2013
|
||
*
|
||
* The SFF standard defines two ranges of addresses, each 255 bytes
|
||
* long for the storage of data and diagnostics on cables, such as
|
||
* SFP+ optics and TwinAx cables. The ranges are defined in the
|
||
* following way:
|
||
*
|
||
* Base Address 0xa0 (Identification Data)
|
||
* 0-95 Serial ID Defined by SFP MSA
|
||
* 96-127 Vendor Specific Data
|
||
* 128-255 Reserved
|
||
*
|
||
* Base Address 0xa2 (Diagnostic Data)
|
||
* 0-55 Alarm and Warning Thresholds
|
||
* 56-95 Cal Constants
|
||
* 96-119 Real Time Diagnostic Interface
|
||
* 120-127 Vendor Specific
|
||
* 128-247 User Writable EEPROM
|
||
* 248-255 Vendor Specific
|
||
*
|
||
* Note that not all addresses are supported. Where support is
|
||
* optional this is noted and instructions for checking for the
|
||
* support are supplied.
|
||
*
|
||
* All these values are read across an I2C (i squared C) bus. Any
|
||
* device wishing to read these addresses must first have support for
|
||
* i2c calls. The Chelsio T4/T5 driver (dev/cxgbe) is one such
|
||
* driver.
|
||
*/
|
||
|
||
|
||
/* Table 3.1 Two-wire interface ID: Data Fields */
|
||
|
||
enum {
|
||
SFF_8472_BASE = 0xa0, /* Base address for all our queries. */
|
||
SFF_8472_ID = 0, /* Transceiver Type (Table 3.2) */
|
||
SFF_8472_EXT_ID = 1, /* Extended transceiver type (Table 3.3) */
|
||
SFF_8472_CONNECTOR = 2, /* Connector type (Table 3.4) */
|
||
SFF_8472_TRANS_START = 3, /* Elec or Optical Compatibility
|
||
* (Table 3.5) */
|
||
SFF_8472_TRANS_END = 10,
|
||
SFF_8472_ENCODING = 11, /* Encoding Code for high speed
|
||
* serial encoding algorithm (see
|
||
* Table 3.6) */
|
||
SFF_8472_BITRATE = 12, /* Nominal signaling rate, units
|
||
* of 100MBd. (see details for
|
||
* rates > 25.0Gb/s) */
|
||
SFF_8472_RATEID = 13, /* Type of rate select
|
||
* functionality (see Table
|
||
* 3.6a) */
|
||
SFF_8472_LEN_SMF_KM = 14, /* Link length supported for single
|
||
* mode fiber, units of km */
|
||
SFF_8472_LEN_SMF = 15, /* Link length supported for single
|
||
* mode fiber, units of 100 m */
|
||
SFF_8472_LEN_50UM = 16, /* Link length supported for 50 um
|
||
* OM2 fiber, units of 10 m */
|
||
SFF_8472_LEN_625UM = 17, /* Link length supported for 62.5
|
||
* um OM1 fiber, units of 10 m */
|
||
SFF_8472_LEN_OM4 = 18, /* Link length supported for 50um
|
||
* OM4 fiber, units of 10m.
|
||
* Alternatively copper or direct
|
||
* attach cable, units of m */
|
||
SFF_8472_LEN_OM3 = 19, /* Link length supported for 50 um OM3 fiber, units of 10 m */
|
||
SFF_8472_VENDOR_START = 20, /* Vendor name [Address A0h, Bytes
|
||
* 20-35] */
|
||
SFF_8472_VENDOR_END = 35,
|
||
SFF_8472_TRANS = 36, /* Transceiver Code for electronic
|
||
* or optical compatibility (see
|
||
* Table 3.5) */
|
||
SFF_8472_VENDOR_OUI_START = 37, /* Vendor OUI SFP vendor IEEE
|
||
* company ID */
|
||
SFF_8472_VENDOR_OUI_END = 39,
|
||
SFF_8472_PN_START = 40, /* Vendor PN */
|
||
SFF_8472_PN_END = 55,
|
||
SFF_8472_REV_START = 56, /* Vendor Revision */
|
||
SFF_8472_REV_END = 59,
|
||
SFF_8472_WAVELEN_START = 60, /* Wavelength Laser wavelength
|
||
* (Passive/Active Cable
|
||
* Specification Compliance) */
|
||
SFF_8472_WAVELEN_END = 61,
|
||
SFF_8472_CC_BASE = 63, /* CC_BASE Check code for Base ID
|
||
* Fields (addresses 0 to 62) */
|
||
|
||
/*
|
||
* Extension Fields (optional) check the options before reading other
|
||
* addresses.
|
||
*/
|
||
SFF_8472_OPTIONS_MSB = 64, /* Options Indicates which optional
|
||
* transceiver signals are
|
||
* implemented */
|
||
SFF_8472_OPTIONS_LSB = 65, /* (see Table 3.7) */
|
||
SFF_8472_BR_MAX = 66, /* BR max Upper bit rate margin,
|
||
* units of % (see details for
|
||
* rates > 25.0Gb/s) */
|
||
SFF_8472_BR_MIN = 67, /* Lower bit rate margin, units of
|
||
* % (see details for rates >
|
||
* 25.0Gb/s) */
|
||
SFF_8472_SN_START = 68, /* Vendor SN [Address A0h, Bytes 68-83] */
|
||
SFF_8472_SN_END = 83,
|
||
SFF_8472_DATE_START = 84, /* Date code Vendor’s manufacturing
|
||
* date code (see Table 3.8) */
|
||
SFF_8472_DATE_END = 91,
|
||
SFF_8472_DIAG_TYPE = 92, /* Diagnostic Monitoring Type
|
||
* Indicates which type of
|
||
* diagnostic monitoring is
|
||
* implemented (if any) in the
|
||
* transceiver (see Table 3.9)
|
||
*/
|
||
|
||
SFF_8472_ENHANCED = 93, /* Enhanced Options Indicates which
|
||
* optional enhanced features are
|
||
* implemented (if any) in the
|
||
* transceiver (see Table 3.10) */
|
||
SFF_8472_COMPLIANCE = 94, /* SFF-8472 Compliance Indicates
|
||
* which revision of SFF-8472 the
|
||
* transceiver complies with. (see
|
||
* Table 3.12)*/
|
||
SFF_8472_CC_EXT = 95, /* Check code for the Extended ID
|
||
* Fields (addresses 64 to 94)
|
||
*/
|
||
|
||
SFF_8472_VENDOR_RSRVD_START = 96,
|
||
SFF_8472_VENDOR_RSRVD_END = 127,
|
||
|
||
SFF_8472_RESERVED_START = 128,
|
||
SFF_8472_RESERVED_END = 255
|
||
};
|
||
|
||
#define SFF_8472_DIAG_IMPL (1 << 6) /* Required to be 1 */
|
||
#define SFF_8472_DIAG_INTERNAL (1 << 5) /* Internal measurements. */
|
||
#define SFF_8472_DIAG_EXTERNAL (1 << 4) /* External measurements. */
|
||
#define SFF_8472_DIAG_POWER (1 << 3) /* Power measurement type */
|
||
#define SFF_8472_DIAG_ADDR_CHG (1 << 2) /* Address change required.
|
||
* See SFF-8472 doc. */
|
||
|
||
/*
|
||
* Diagnostics are available at the two wire address 0xa2. All
|
||
* diagnostics are OPTIONAL so you should check 0xa0 registers 92 to
|
||
* see which, if any are supported.
|
||
*/
|
||
|
||
enum {SFF_8472_DIAG = 0xa2}; /* Base address for diagnostics. */
|
||
|
||
/*
|
||
* Table 3.15 Alarm and Warning Thresholds All values are 2 bytes
|
||
* and MUST be read in a single read operation starting at the MSB
|
||
*/
|
||
|
||
enum {
|
||
SFF_8472_TEMP_HIGH_ALM = 0, /* Temp High Alarm */
|
||
SFF_8472_TEMP_LOW_ALM = 2, /* Temp Low Alarm */
|
||
SFF_8472_TEMP_HIGH_WARN = 4, /* Temp High Warning */
|
||
SFF_8472_TEMP_LOW_WARN = 6, /* Temp Low Warning */
|
||
SFF_8472_VOLTAGE_HIGH_ALM = 8, /* Voltage High Alarm */
|
||
SFF_8472_VOLTAGE_LOW_ALM = 10, /* Voltage Low Alarm */
|
||
SFF_8472_VOLTAGE_HIGH_WARN = 12, /* Voltage High Warning */
|
||
SFF_8472_VOLTAGE_LOW_WARN = 14, /* Voltage Low Warning */
|
||
SFF_8472_BIAS_HIGH_ALM = 16, /* Bias High Alarm */
|
||
SFF_8472_BIAS_LOW_ALM = 18, /* Bias Low Alarm */
|
||
SFF_8472_BIAS_HIGH_WARN = 20, /* Bias High Warning */
|
||
SFF_8472_BIAS_LOW_WARN = 22, /* Bias Low Warning */
|
||
SFF_8472_TX_POWER_HIGH_ALM = 24, /* TX Power High Alarm */
|
||
SFF_8472_TX_POWER_LOW_ALM = 26, /* TX Power Low Alarm */
|
||
SFF_8472_TX_POWER_HIGH_WARN = 28, /* TX Power High Warning */
|
||
SFF_8472_TX_POWER_LOW_WARN = 30, /* TX Power Low Warning */
|
||
SFF_8472_RX_POWER_HIGH_ALM = 32, /* RX Power High Alarm */
|
||
SFF_8472_RX_POWER_LOW_ALM = 34, /* RX Power Low Alarm */
|
||
SFF_8472_RX_POWER_HIGH_WARN = 36, /* RX Power High Warning */
|
||
SFF_8472_RX_POWER_LOW_WARN = 38, /* RX Power Low Warning */
|
||
|
||
SFF_8472_RX_POWER4 = 56, /* Rx_PWR(4) Single precision
|
||
* floating point calibration data
|
||
* - Rx optical power. Bit 7 of
|
||
* byte 56 is MSB. Bit 0 of byte
|
||
* 59 is LSB. Rx_PWR(4) should be
|
||
* set to zero for “internally
|
||
* calibrated” devices. */
|
||
SFF_8472_RX_POWER3 = 60, /* Rx_PWR(3) Single precision
|
||
* floating point calibration data
|
||
* - Rx optical power. Bit 7 of
|
||
* byte 60 is MSB. Bit 0 of byte 63
|
||
* is LSB. Rx_PWR(3) should be set
|
||
* to zero for “internally
|
||
* calibrated” devices.*/
|
||
SFF_8472_RX_POWER2 = 64, /* Rx_PWR(2) Single precision
|
||
* floating point calibration data,
|
||
* Rx optical power. Bit 7 of byte
|
||
* 64 is MSB, bit 0 of byte 67 is
|
||
* LSB. Rx_PWR(2) should be set to
|
||
* zero for “internally calibrated”
|
||
* devices. */
|
||
SFF_8472_RX_POWER1 = 68, /* Rx_PWR(1) Single precision
|
||
* floating point calibration data,
|
||
* Rx optical power. Bit 7 of byte
|
||
* 68 is MSB, bit 0 of byte 71 is
|
||
* LSB. Rx_PWR(1) should be set to
|
||
* 1 for “internally calibrated”
|
||
* devices. */
|
||
SFF_8472_RX_POWER0 = 72, /* Rx_PWR(0) Single precision
|
||
* floating point calibration data,
|
||
* Rx optical power. Bit 7 of byte
|
||
* 72 is MSB, bit 0 of byte 75 is
|
||
* LSB. Rx_PWR(0) should be set to
|
||
* zero for “internally calibrated”
|
||
* devices. */
|
||
SFF_8472_TX_I_SLOPE = 76, /* Tx_I(Slope) Fixed decimal
|
||
* (unsigned) calibration data,
|
||
* laser bias current. Bit 7 of
|
||
* byte 76 is MSB, bit 0 of byte 77
|
||
* is LSB. Tx_I(Slope) should be
|
||
* set to 1 for “internally
|
||
* calibrated” devices. */
|
||
SFF_8472_TX_I_OFFSET = 78, /* Tx_I(Offset) Fixed decimal
|
||
* (signed two’s complement)
|
||
* calibration data, laser bias
|
||
* current. Bit 7 of byte 78 is
|
||
* MSB, bit 0 of byte 79 is
|
||
* LSB. Tx_I(Offset) should be set
|
||
* to zero for “internally
|
||
* calibrated” devices. */
|
||
SFF_8472_TX_POWER_SLOPE = 80, /* Tx_PWR(Slope) Fixed decimal
|
||
* (unsigned) calibration data,
|
||
* transmitter coupled output
|
||
* power. Bit 7 of byte 80 is MSB,
|
||
* bit 0 of byte 81 is LSB.
|
||
* Tx_PWR(Slope) should be set to 1
|
||
* for “internally calibrated”
|
||
* devices. */
|
||
SFF_8472_TX_POWER_OFFSET = 82, /* Tx_PWR(Offset) Fixed decimal
|
||
* (signed two’s complement)
|
||
* calibration data, transmitter
|
||
* coupled output power. Bit 7 of
|
||
* byte 82 is MSB, bit 0 of byte 83
|
||
* is LSB. Tx_PWR(Offset) should be
|
||
* set to zero for “internally
|
||
* calibrated” devices. */
|
||
SFF_8472_T_SLOPE = 84, /* T (Slope) Fixed decimal
|
||
* (unsigned) calibration data,
|
||
* internal module temperature. Bit
|
||
* 7 of byte 84 is MSB, bit 0 of
|
||
* byte 85 is LSB. T(Slope) should
|
||
* be set to 1 for “internally
|
||
* calibrated” devices. */
|
||
SFF_8472_T_OFFSET = 86, /* T (Offset) Fixed decimal (signed
|
||
* two’s complement) calibration
|
||
* data, internal module
|
||
* temperature. Bit 7 of byte 86 is
|
||
* MSB, bit 0 of byte 87 is LSB.
|
||
* T(Offset) should be set to zero
|
||
* for “internally calibrated”
|
||
* devices. */
|
||
SFF_8472_V_SLOPE = 88, /* V (Slope) Fixed decimal
|
||
* (unsigned) calibration data,
|
||
* internal module supply
|
||
* voltage. Bit 7 of byte 88 is
|
||
* MSB, bit 0 of byte 89 is
|
||
* LSB. V(Slope) should be set to 1
|
||
* for “internally calibrated”
|
||
* devices. */
|
||
SFF_8472_V_OFFSET = 90, /* V (Offset) Fixed decimal (signed
|
||
* two’s complement) calibration
|
||
* data, internal module supply
|
||
* voltage. Bit 7 of byte 90 is
|
||
* MSB. Bit 0 of byte 91 is
|
||
* LSB. V(Offset) should be set to
|
||
* zero for “internally calibrated”
|
||
* devices. */
|
||
SFF_8472_CHECKSUM = 95, /* Checksum Byte 95 contains the
|
||
* low order 8 bits of the sum of
|
||
* bytes 0 – 94. */
|
||
/* Internal measurements. */
|
||
|
||
SFF_8472_TEMP = 96, /* Internally measured module temperature. */
|
||
SFF_8472_VCC = 98, /* Internally measured supply
|
||
* voltage in transceiver.
|
||
*/
|
||
SFF_8472_TX_BIAS = 100, /* Internally measured TX Bias Current. */
|
||
SFF_8472_TX_POWER = 102, /* Measured TX output power. */
|
||
SFF_8472_RX_POWER = 104, /* Measured RX input power. */
|
||
|
||
SFF_8472_STATUS = 110 /* See below */
|
||
};
|
||
/* Status Bits Described */
|
||
|
||
/*
|
||
* TX Disable State Digital state of the TX Disable Input Pin. Updated
|
||
* within 100ms of change on pin.
|
||
*/
|
||
#define SFF_8472_STATUS_TX_DISABLE (1 << 7)
|
||
|
||
/*
|
||
* Select Read/write bit that allows software disable of
|
||
* laser. Writing ‘1’ disables laser. See Table 3.11 for
|
||
* enable/disable timing requirements. This bit is “OR”d with the hard
|
||
* TX_DISABLE pin value. Note, per SFP MSA TX_DISABLE pin is default
|
||
* enabled unless pulled low by hardware. If Soft TX Disable is not
|
||
* implemented, the transceiver ignores the value of this bit. Default
|
||
* power up value is zero/low.
|
||
*/
|
||
#define SFF_8472_STATUS_SOFT_TX_DISABLE (1 << 6)
|
||
|
||
/*
|
||
* RS(1) State Digital state of SFP input pin AS(1) per SFF-8079 or
|
||
* RS(1) per SFF-8431. Updated within 100ms of change on pin. See A2h
|
||
* Byte 118, Bit 3 for Soft RS(1) Select control information.
|
||
*/
|
||
#define SFF_8472_RS_STATE (1 << 5)
|
||
|
||
/*
|
||
* Rate_Select State [aka. “RS(0)”] Digital state of the SFP
|
||
* Rate_Select Input Pin. Updated within 100ms of change on pin. Note:
|
||
* This pin is also known as AS(0) in SFF-8079 and RS(0) in SFF-8431.
|
||
*/
|
||
#define SFF_8472_STATUS_SELECT_STATE (1 << 4)
|
||
|
||
/*
|
||
* Read/write bit that allows software rate select control. Writing
|
||
* ‘1’ selects full bandwidth operation. This bit is “OR’d with the
|
||
* hard Rate_Select, AS(0) or RS(0) pin value. See Table 3.11 for
|
||
* timing requirements. Default at power up is logic zero/low. If Soft
|
||
* Rate Select is not implemented, the transceiver ignores the value
|
||
* of this bit. Note: Specific transceiver behaviors of this bit are
|
||
* identified in Table 3.6a and referenced documents. See Table 3.18a,
|
||
* byte 118, bit 3 for Soft RS(1) Select.
|
||
*/
|
||
#define SFF_8472_STATUS_SOFT_RATE_SELECT (1 << 3)
|
||
|
||
/*
|
||
* TX Fault State Digital state of the TX Fault Output Pin. Updated
|
||
* within 100ms of change on pin.
|
||
*/
|
||
#define SFF_8472_STATUS_TX_FAULT_STATE (1 << 2)
|
||
|
||
/*
|
||
* Digital state of the RX_LOS Output Pin. Updated within 100ms of
|
||
* change on pin.
|
||
*/
|
||
#define SFF_8472_STATUS_RX_LOS (1 << 1)
|
||
|
||
/*
|
||
* Indicates transceiver has achieved power up and data is ready. Bit
|
||
* remains high until data is ready to be read at which time the
|
||
* device sets the bit low.
|
||
*/
|
||
#define SFF_8472_STATUS_DATA_READY (1 << 0)
|
||
|
||
/* Table 3.2 Identifier values */
|
||
enum {
|
||
SFF_8472_ID_UNKNOWN = 0x0, /* Unknown or unspecified */
|
||
SFF_8472_ID_GBIC = 0x1, /* GBIC */
|
||
SFF_8472_ID_SFF = 0x2, /* Module soldered to motherboard (ex: SFF)*/
|
||
SFF_8472_ID_SFP = 0x3, /* SFP or SFP “Plus” */
|
||
SFF_8472_ID_XBI = 0x4, /* Reserved for “300 pin XBI” devices */
|
||
SFF_8472_ID_XENPAK = 0x5, /* Reserved for “Xenpak” devices */
|
||
SFF_8472_ID_XFP = 0x6, /* Reserved for “XFP” devices */
|
||
SFF_8472_ID_XFF = 0x7, /* Reserved for “XFF” devices */
|
||
SFF_8472_ID_XFPE = 0x8, /* Reserved for “XFP-E” devices */
|
||
SFF_8472_ID_XPAK = 0x9, /* Reserved for “XPak” devices */
|
||
SFF_8472_ID_X2 = 0xA, /* Reserved for “X2” devices */
|
||
SFF_8472_ID_DWDM_SFP = 0xB, /* Reserved for “DWDM-SFP” devices */
|
||
SFF_8472_ID_QSFP = 0xC, /* Reserved for “QSFP” devices */
|
||
SFF_8472_ID_LAST = SFF_8472_ID_QSFP
|
||
};
|
||
|
||
static char *sff_8472_id[SFF_8472_ID_LAST + 1] = {"Unknown",
|
||
"GBIC",
|
||
"SFF",
|
||
"SFP",
|
||
"XBI",
|
||
"Xenpak",
|
||
"XFP",
|
||
"XFF",
|
||
"XFP-E",
|
||
"XPak",
|
||
"X2",
|
||
"DWDM-SFP",
|
||
"QSFP"};
|
||
|
||
/* Table 3.13 and 3.14 Temperature Conversion Values */
|
||
#define SFF_8472_TEMP_SIGN (1 << 15)
|
||
#define SFF_8472_TEMP_SHIFT 8
|
||
#define SFF_8472_TEMP_MSK 0xEF00
|
||
#define SFF_8472_TEMP_FRAC 0x00FF
|
||
|
||
/* Internal Callibration Conversion factors */
|
||
|
||
/*
|
||
* Represented as a 16 bit unsigned integer with the voltage defined
|
||
* as the full 16 bit value (0 – 65535) with LSB equal to 100 uVolt,
|
||
* yielding a total range of 0 to +6.55 Volts.
|
||
*/
|
||
#define SFF_8472_VCC_FACTOR 10000.0
|
||
|
||
/*
|
||
* Represented as a 16 bit unsigned integer with the current defined
|
||
* as the full 16 bit value (0 – 65535) with LSB equal to 2 uA,
|
||
* yielding a total range of 0 to 131 mA.
|
||
*/
|
||
|
||
#define SFF_8472_BIAS_FACTOR 2000.0
|
||
|
||
/*
|
||
* Represented as a 16 bit unsigned integer with the power defined as
|
||
* the full 16 bit value (0 – 65535) with LSB equal to 0.1 uW,
|
||
* yielding a total range of 0 to 6.5535 mW (~ -40 to +8.2 dBm).
|
||
*/
|
||
|
||
#define SFF_8472_POWER_FACTOR 10000.0
|