Subject: Re: [PATCH RFC ethtool] QSFP Diagnostics Information Support

From: Bert Kenward <[email-masked]>
Date: Fri, 16 Jan 2015 12:38:40 +0000

On 09/01/15 23:41, [email-masked] wrote:
> From: Vidya Sagar Ravipati <[email-masked]>
>
> This patch provides support for diagnostics information
> for QSFP Plus modules which based on SFF 8436 specification
> This implementation is loosely based on current SFP DOM parser
> and SFF-8436 specs (ftp://ftp.seagate.com/pub/sff/SFF-8436.PDF)
> by SFF Committee.
>
> Signed-off-by: Vidya Sagar Ravipati <[email-masked]>

I've tested this with a few QSFP+ modules, alongside a driver patch to 
provide the eeprom data. Diagnostics appear with reasonable values.

Acked-by: Bert Kenward <[email-masked]>

> ---
>   Makefile.am    |    2 +-
>   ethtool-copy.h |    2 +
>   ethtool.c      |    3 +
>   internal.h     |    3 +
>   qsfp.c         |  827 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>   qsfp.h         |  541 ++++++++++++++++++++++++++++++++++++
>   6 files changed, 1377 insertions(+), 1 deletion(-)
>   create mode 100644 qsfp.c
>   create mode 100644 qsfp.h
>
> diff --git a/Makefile.am b/Makefile.am
> index 4698d16..b6162db 100644
> --- a/Makefile.am
> +++ b/Makefile.am
> @@ -13,7 +13,7 @@ ethtool_SOURCES += \
>   		  fec_8xx.c ibm_emac.c ixgb.c ixgbe.c natsemi.c	\
>   		  pcnet32.c realtek.c tg3.c marvell.c vioc.c	\
>   		  smsc911x.c at76c50x-usb.c sfc.c stmmac.c	\
> -		  sfpid.c sfpdiag.c ixgbevf.c tse.c
> +		  sfpid.c sfpdiag.c ixgbevf.c tse.c qsfp.c
>   endif
>
>   TESTS = test-cmdline test-features
> diff --git a/ethtool-copy.h b/ethtool-copy.h
> index 61b78fc..8c4fb8b 100644
> --- a/ethtool-copy.h
> +++ b/ethtool-copy.h
> @@ -1314,6 +1314,8 @@ enum ethtool_sfeatures_retval_bits {
>   #define ETH_MODULE_SFF_8079_LEN		256
>   #define ETH_MODULE_SFF_8472		0x2
>   #define ETH_MODULE_SFF_8472_LEN		512
> +#define ETH_MODULE_SFF_8436     0x3
> +#define ETH_MODULE_SFF_8436_LEN     640
>
>   /* Reset flags */
>   /* The reset() operation must clear the flags for the components which
> diff --git a/ethtool.c b/ethtool.c
> index bf583f3..8cf1968 100644
> --- a/ethtool.c
> +++ b/ethtool.c
> @@ -3918,6 +3918,9 @@ static int do_getmodule(struct cmd_context *ctx)
>   				sff8079_show_all(eeprom->data);
>   				sff8472_show_all(eeprom->data);
>   				break;
> +			case ETH_MODULE_SFF_8436:
> +				sff8436_show_all(eeprom->data);
> +				break;
>   #endif
>   			default:
>   				geeprom_dump_hex = 1;
> diff --git a/internal.h b/internal.h
> index a9dfae0..03543a9 100644
> --- a/internal.h
> +++ b/internal.h
> @@ -262,4 +262,7 @@ void sff8079_show_all(const __u8 *id);
>   /* Optics diagnostics */
>   void sff8472_show_all(const __u8 *id);
>
> +/* QSFP Optics diagnostics */
> +void sff8436_show_all(const __u8 *id);
> +
>   #endif /* ETHTOOL_INTERNAL_H__ */
> diff --git a/qsfp.c b/qsfp.c
> new file mode 100644
> index 0000000..03e80d9
> --- /dev/null
> +++ b/qsfp.c
> @@ -0,0 +1,827 @@
> +/*
> + * qsfp.c: Implements SFF-8436 based QSFP+ Diagnostics Memory map.
> + *
> + * Copyright (C) 2014 Cumulus networks Inc.
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Freeoftware Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> + *
> + *  Vidya Ravipati <[email-masked]>
> + *   This implementation is loosely based on current SFP parser
> + *   and SFF-8436 specs (ftp://ftp.seagate.com/pub/sff/SFF-8436.PDF)
> + *   by SFF Committee.
> + */
> +
> +/*
> + *	Description:
> + *	a) The register/memory layout is up to 5 128 byte pages defined by
> + *		a "pages valid" register and switched via a "page select"
> + *		register. Memory of 256 bytes can be memory mapped at a time
> + *		according to SFF 8436.
> + *	b) SFF 8436 based 640 bytes memory layout is presented for parser
> + *
> + *           SFF 8436 based QSFP Memory Map
> + *
> + *           2-Wire Serial Address: 1010000x
> + *
> + *           Lower Page 00h (128 bytes)
> + *           ======================
> + *           |                     |
> + *           |Page Select Byte(127)|
> + *           ======================
> + *                    |
> + *                    V
> + *	     ----------------------------------------
> + *	    |             |            |             |
> + *	    V             V            V             V
> + *	 ----------   ----------   ---------    ------------
> + *	| Upper    | | Upper    | | Upper    | | Upper      |
> + *	| Page 00h | | Page 01h | | Page 02h | | Page 03h   |
> + *	|          | |(Optional)| |(Optional)| | (Optional) |
> + *	|          | |          | |          | |            |
> + *	|          | |          | |          | |            |
> + *	|    ID    | |   AST    | |  User    | |  For       |
> + *	|  Fields  | |  Table   | | EEPROM   | |  Cable     |
> + *	|          | |          | | Data     | | Assemblies |
> + *	|          | |          | |          | |            |
> + *	|          | |          | |          | |            |
> + *	-----------  -----------   ----------  --------------
> + *
> + *
> + **/
> +#include <stdio.h>
> +#include <math.h>
> +#include "internal.h"
> +#include "qsfp.h"
> +
> +#define MAX_DESC_SIZE	42
> +
> +/* Channel Monitoring Fields */
> +struct sff8436_channel_diags {
> +
> +	__u16 bias_cur;      /* Measured bias current in 2uA units */
> +	__u16 rx_power;      /* Measured RX Power */
> +
> +};
> +
> +/* Module Monitoring Fields */
> +struct sff8436_diags {
> +
> +#define MAX_CHANNEL_NUM 4
> +#define LWARN 0
> +#define HWARN 1
> +#define LALRM 2
> +#define HALRM 3
> +
> +	__u8 supports_dom;      /* Supports DOM */
> +	__u8 supports_alarms;   /* Supports alarm/warning thold */
> +	__u8  rx_power_type;    /* 0 = OMA, 1 = Average power */
> +	__u16 sfp_voltage;   /* SFP voltage in 0.1mV units */
> +	__s16 sfp_temp;      /* SFP Temp in 16-bit signed 1/256 Celcius */
> +	/* [4] tables are low/high warn, low/high alarm */
> +	/* SFP voltage in 0.1mV units */
> +	__u16 thresh_sfp_voltage[4];
> +	/* SFP Temp in 16-bit signed 1/256 Celcius */
> +	__s16 thresh_sfp_temp[4];
> +	/* Measured bias current in 2uA units */
> +	__u16 thresh_bias_cur[4];
> +	/* Measured RX Power */
> +	__u16 thresh_rx_power[4];
> +	struct sff8436_channel_diags scd[MAX_CHANNEL_NUM];
> +};
> +
> +static struct sff8436_aw_flags {
> +	const char *str;        /* Human-readable string, null at the end */
> +	int offset;             /* A2-relative adress offset */
> +	__u8 value;             /* Alarm is on if (offset & value) != 0. */
> +} sff8436_aw_flags[] = {
> +	{ "Laser bias current high alarm   (Chan 1)",
> +		SFF8436_TX_BIAS_12_AW_OFFSET, (SFF8436_TX_BIAS_1_HALARM) },
> +	{ "Laser bias current low alarm    (Chan 1)",
> +		SFF8436_TX_BIAS_12_AW_OFFSET, (SFF8436_TX_BIAS_1_LALARM) },
> +	{ "Laser bias current high warning (Chan 1)",
> +		SFF8436_TX_BIAS_12_AW_OFFSET, (SFF8436_TX_BIAS_1_HWARN) },
> +	{ "Laser bias current low warning  (Chan 1)",
> +		SFF8436_TX_BIAS_12_AW_OFFSET, (SFF8436_TX_BIAS_1_LWARN) },
> +
> +	{ "Laser bias current high alarm   (Chan 2)",
> +		SFF8436_TX_BIAS_12_AW_OFFSET, (SFF8436_TX_BIAS_2_HALARM) },
> +	{ "Laser bias current low alarm    (Chan 2)",
> +		SFF8436_TX_BIAS_12_AW_OFFSET, (SFF8436_TX_BIAS_2_LALARM) },
> +	{ "Laser bias current high warning (Chan 2)",
> +		SFF8436_TX_BIAS_12_AW_OFFSET, (SFF8436_TX_BIAS_2_HWARN) },
> +	{ "Laser bias current low warning  (Chan 2)",
> +		SFF8436_TX_BIAS_12_AW_OFFSET, (SFF8436_TX_BIAS_2_LWARN) },
> +
> +	{ "Laser bias current high alarm   (Chan 3)",
> +		SFF8436_TX_BIAS_34_AW_OFFSET, (SFF8436_TX_BIAS_3_HALARM) },
> +	{ "Laser bias current low alarm    (Chan 3)",
> +		SFF8436_TX_BIAS_34_AW_OFFSET, (SFF8436_TX_BIAS_3_LALARM) },
> +	{ "Laser bias current high warning (Chan 3)",
> +		SFF8436_TX_BIAS_34_AW_OFFSET, (SFF8436_TX_BIAS_3_HWARN) },
> +	{ "Laser bias current low warning  (Chan 3)",
> +		SFF8436_TX_BIAS_34_AW_OFFSET, (SFF8436_TX_BIAS_3_LWARN) },
> +
> +	{ "Laser bias current high alarm   (Chan 4)",
> +		SFF8436_TX_BIAS_34_AW_OFFSET, (SFF8436_TX_BIAS_4_HALARM) },
> +	{ "Laser bias current low alarm    (Chan 4)",
> +		SFF8436_TX_BIAS_34_AW_OFFSET, (SFF8436_TX_BIAS_4_LALARM) },
> +	{ "Laser bias current high warning (Chan 4)",
> +		SFF8436_TX_BIAS_34_AW_OFFSET, (SFF8436_TX_BIAS_4_HWARN) },
> +	{ "Laser bias current low warning  (Chan 4)",
> +		SFF8436_TX_BIAS_34_AW_OFFSET, (SFF8436_TX_BIAS_4_LWARN) },
> +
> +	{ "Module temperature high alarm",
> +		SFF8436_TEMP_AW_OFFSET, (SFF8436_TEMP_HALARM_STATUS) },
> +	{ "Module temperature low alarm",
> +		SFF8436_TEMP_AW_OFFSET, (SFF8436_TEMP_LALARM_STATUS) },
> +	{ "Module temperature high warning",
> +		SFF8436_TEMP_AW_OFFSET, (SFF8436_TEMP_HWARN_STATUS) },
> +	{ "Module temperature low warning",
> +		SFF8436_TEMP_AW_OFFSET, (SFF8436_TEMP_LWARN_STATUS) },
> +
> +	{ "Module voltage high alarm",
> +		SFF8436_VCC_AW_OFFSET, (SFF8436_VCC_HALARM_STATUS) },
> +	{ "Module voltage low alarm",
> +		SFF8436_VCC_AW_OFFSET, (SFF8436_VCC_LALARM_STATUS) },
> +	{ "Module voltage high warning",
> +		SFF8436_VCC_AW_OFFSET, (SFF8436_VCC_HWARN_STATUS) },
> +	{ "Module voltage low warning",
> +		SFF8436_VCC_AW_OFFSET, (SFF8436_VCC_LWARN_STATUS) },
> +
> +	{ "Laser rx power high alarm   (Channel 1)",
> +		SFF8436_RX_PWR_12_AW_OFFSET, (SFF8436_RX_PWR_1_HALARM) },
> +	{ "Laser rx power low alarm    (Channel 1)",
> +		SFF8436_RX_PWR_12_AW_OFFSET, (SFF8436_RX_PWR_1_LALARM) },
> +	{ "Laser rx power high warning (Channel 1)",
> +		SFF8436_RX_PWR_12_AW_OFFSET, (SFF8436_RX_PWR_1_HWARN) },
> +	{ "Laser rx power low warning  (Channel 1)",
> +		SFF8436_RX_PWR_12_AW_OFFSET, (SFF8436_RX_PWR_1_LWARN) },
> +
> +	{ "Laser rx power high alarm   (Channel 2)",
> +		SFF8436_RX_PWR_12_AW_OFFSET, (SFF8436_RX_PWR_2_HALARM) },
> +	{ "Laser rx power low alarm    (Channel 2)",
> +		SFF8436_RX_PWR_12_AW_OFFSET, (SFF8436_RX_PWR_2_LALARM) },
> +	{ "Laser rx power high warning (Channel 2)",
> +		SFF8436_RX_PWR_12_AW_OFFSET, (SFF8436_RX_PWR_2_HWARN) },
> +	{ "Laser rx power low warning  (Channel 2)",
> +		SFF8436_RX_PWR_12_AW_OFFSET, (SFF8436_RX_PWR_2_LWARN) },
> +
> +	{ "Laser rx power high alarm   (Channel 3)",
> +		SFF8436_RX_PWR_34_AW_OFFSET, (SFF8436_RX_PWR_3_HALARM) },
> +	{ "Laser rx power low alarm    (Channel 3)",
> +		SFF8436_RX_PWR_34_AW_OFFSET, (SFF8436_RX_PWR_3_LALARM) },
> +	{ "Laser rx power high warning (Channel 3)",
> +		SFF8436_RX_PWR_34_AW_OFFSET, (SFF8436_RX_PWR_3_HWARN) },
> +	{ "Laser rx power low warning  (Channel 3)",
> +		SFF8436_RX_PWR_34_AW_OFFSET, (SFF8436_RX_PWR_3_LWARN) },
> +
> +	{ "Laser rx power high alarm   (Channel 4)",
> +		SFF8436_RX_PWR_34_AW_OFFSET, (SFF8436_RX_PWR_4_HALARM) },
> +	{ "Laser rx power low alarm    (Channel 4)",
> +		SFF8436_RX_PWR_34_AW_OFFSET, (SFF8436_RX_PWR_4_LALARM) },
> +	{ "Laser rx power high warning (Channel 4)",
> +		SFF8436_RX_PWR_34_AW_OFFSET, (SFF8436_RX_PWR_4_HWARN) },
> +	{ "Laser rx power low warning  (Channel 4)",
> +		SFF8436_RX_PWR_34_AW_OFFSET, (SFF8436_RX_PWR_4_LWARN) },
> +
> +	{ NULL, 0, 0 },
> +};
> +
> +static void sff8436_show_identifier(const __u8 *id)
> +{
> +	printf("\t%-41s : 0x%02x", "Identifier", id[SFF8436_ID_OFFSET]);
> +	switch (id[SFF8436_ID_OFFSET]) {
> +	case SFF8436_ID_UNKNOWN:
> +		printf(" (no module present, unknown, or unspecified)\n");
> +		break;
> +	case SFF8436_ID_GBIC:
> +		printf(" (GBIC)\n");
> +		break;
> +	case SFF8436_ID_SOLDERED_MODULE:
> +		printf(" (module soldered to motherboard)\n");
> +		break;
> +	case SFF8436_ID_SFP:
> +		printf(" (SFP)\n");
> +		break;
> +	case SFF8436_ID_300_PIN_XBI:
> +		printf(" (300 pin XBI)\n");
> +		break;
> +	case SFF8436_ID_XENPAK:
> +		printf(" (XENPAK)\n");
> +		break;
> +	case SFF8436_ID_XFP:
> +		printf(" (XFP)\n");
> +		break;
> +	case SFF8436_ID_XFF:
> +		printf(" (XFF)\n");
> +		break;
> +	case SFF8436_ID_XFP_E:
> +		printf(" (XFP-E)\n");
> +		break;
> +	case SFF8436_ID_XPAK:
> +		printf(" (XPAK)\n");
> +		break;
> +	case SFF8436_ID_X2:
> +		printf(" (X2)\n");
> +		break;
> +	case SFF8436_ID_DWDM_SFP:
> +		printf(" (DWDM-SFP)\n");
> +		break;
> +	case SFF8436_ID_DWDM_QSFP:
> +		printf(" (QSFP)\n");
> +		break;
> +	case SFF8436_ID_DWDM_QSFP_PLUS:
> +		printf(" (QSFP+)\n");
> +		break;
> +	default:
> +		printf(" (reserved or unknown)\n");
> +		break;
> +	}
> +}
> +
> +static void sff8436_show_ext_identifier(const __u8 *id)
> +{
> +	printf("\t%-41s : 0x%02x", "Extended identifier",
> +			id[SFF8436_EXT_ID_OFFSET]);
> +
> +	switch (id[SFF8436_EXT_ID_OFFSET] & SFF8436_EXT_ID_PWR_CLASS_MASK) {
> +	case SFF8436_EXT_ID_PWR_CLASS_1:
> +		printf(" (1.5W max. Power consumption,");
> +		break;
> +	case SFF8436_EXT_ID_PWR_CLASS_2:
> +		printf(" (2.0W max. Power consumption,");
> +		break;
> +	case SFF8436_EXT_ID_PWR_CLASS_3:
> +		printf(" (2.5W max. Power consumption,");
> +		break;
> +	case SFF8436_EXT_ID_PWR_CLASS_4:
> +		printf(" (3.5W max. Power consumption,");
> +		break;
> +	}
> +	if (id[SFF8436_EXT_ID_OFFSET] & SFF8436_EXT_ID_CDR_TX_MASK)
> +		printf(" CDR present in TX,");
> +	else
> +		printf(" No CDR in TX,");
> +
> +	if (id[SFF8436_EXT_ID_OFFSET] & SFF8436_EXT_ID_CDR_RX_MASK)
> +		printf(" CDR present in RX)\n");
> +	else
> +		printf(" No CDR in RX)\n");
> +}
> +
> +static void sff8436_show_connector(const __u8 *id)
> +{
> +	printf("\t%-41s : 0x%02x", "Connector", id[SFF8436_CTOR_OFFSET]);
> +	switch (id[SFF8436_CTOR_OFFSET]) {
> +	case SFF8436_CTOR_UNKNOWN:
> +		printf(" (unknown or unspecified)\n");
> +		break;
> +	case SFF8436_CTOR_SC:
> +		printf(" (SC)\n");
> +		break;
> +	case SFF8436_CTOR_FC_STYLE_1:
> +		printf(" (Fibre Channel Style 1 copper)\n");
> +		break;
> +	case SFF8436_CTOR_FC_STYLE_2:
> +		printf(" (Fibre Channel Style 2 copper)\n");
> +		break;
> +	case SFF8436_CTOR_BNC_TNC:
> +		printf(" (BNC/TNC)\n");
> +		break;
> +	case SFF8436_CTOR_FC_COAX:
> +		printf(" (Fibre Channel coaxial headers)\n");
> +		break;
> +	case SFF8436_CTOR_FIBER_JACK:
> +		printf(" (FibreJack)\n");
> +		break;
> +	case SFF8436_CTOR_LC:
> +		printf(" (LC)\n");
> +		break;
> +	case SFF8436_CTOR_MT_RJ:
> +		printf(" (MT-RJ)\n");
> +		break;
> +	case SFF8436_CTOR_MU:
> +		printf(" (MU)\n");
> +		break;
> +	case SFF8436_CTOR_SG:
> +		printf(" (SG)\n");
> +		break;
> +	case SFF8436_CTOR_OPT_PT:
> +		printf(" (Optical pigtail)\n");
> +		break;
> +	case SFF8436_CTOR_MPO:
> +		printf(" (MPO Parallel Optic)\n");
> +		break;
> +	case SFF8436_CTOR_HSDC_II:
> +		printf(" (HSSDC II)\n");
> +		break;
> +	case SFF8436_CTOR_COPPER_PT:
> +		printf(" (Copper pigtail)\n");
> +		break;
> +	case SFF8436_CTOR_RJ45:
> +		printf(" (RJ45)\n");
> +		break;
> +	case SFF8436_CTOR_NO_SEPARABLE:
> +		printf(" (No separable connector)\n");
> +		break;
> +	default:
> +		printf(" (reserved or unknown)\n");
> +		break;
> +	}
> +}
> +
> +static void sff8436_show_transceiver(const __u8 *id)
> +{
> +	static const char *pfx =
> +		"\tTransceiver type                          :";
> +
> +	printf("\t%-41s : 0x%02x 0x%02x 0x%02x " \
> +			"0x%02x 0x%02x 0x%02x 0x%02x 0x%02x\n",
> +			"Transceiver codes",
> +			id[SFF8436_ETHERNET_COMP_OFFSET],
> +			id[SFF8436_SONET_COMP_OFFSET],
> +			id[SFF8436_SAS_COMP_OFFSET],
> +			id[SFF8436_GIGE_COMP_OFFSET],
> +			id[SFF8436_FC_LEN_OFFSET],
> +			id[SFF8436_FC_TECH_OFFSET],
> +			id[SFF8436_FC_TRANS_MEDIA_OFFSET],
> +			id[SFF8436_FC_SPEED_OFFSET]);
> +
> +	/* 10G/40G Ethernet Compliance Codes */
> +	if (id[SFF8436_ETHERNET_COMP_OFFSET] & SFF8436_ETHERNET_RSRVD)
> +		printf("%s (reserved or unknown)\n", pfx);
> +	if (id[SFF8436_ETHERNET_COMP_OFFSET] & SFF8436_ETHERNET_10G_LRM)
> +		printf("%s 10G Ethernet: 10G Base-LRM\n", pfx);
> +	if (id[SFF8436_ETHERNET_COMP_OFFSET] & SFF8436_ETHERNET_10G_LR)
> +		printf("%s 10G Ethernet: 10G Base-LR\n", pfx);
> +	if (id[SFF8436_ETHERNET_COMP_OFFSET] & SFF8436_ETHERNET_10G_SR)
> +		printf("%s 10G Ethernet: 10G Base-SR\n", pfx);
> +	if (id[SFF8436_ETHERNET_COMP_OFFSET] & SFF8436_ETHERNET_40G_CR4)
> +		printf("%s 40G Ethernet: 40G Base-CR4\n", pfx);
> +	if (id[SFF8436_ETHERNET_COMP_OFFSET] & SFF8436_ETHERNET_40G_SR4)
> +		printf("%s 40G Ethernet: 40G Base-SR4\n", pfx);
> +	if (id[SFF8436_ETHERNET_COMP_OFFSET] & SFF8436_ETHERNET_40G_LR4)
> +		printf("%s 40G Ethernet: 40G Base-LR4\n", pfx);
> +	if (id[SFF8436_ETHERNET_COMP_OFFSET] & SFF8436_ETHERNET_40G_ACTIVE)
> +		printf("%s 40G Ethernet: 40G Active Cable (XLPPI)\n", pfx);
> +
> +	/* SONET Compliance Codes */
> +	if (id[SFF8436_SONET_COMP_OFFSET] & (SFF8436_SONET_40G_OTN))
> +		printf("%s 40G OTN (OTU3B/OTU3C)\n", pfx);
> +	if (id[SFF8436_SONET_COMP_OFFSET] & (SFF8436_SONET_OC48_LR))
> +		printf("%s SONET: OC-48, long reach\n", pfx);
> +	if (id[SFF8436_SONET_COMP_OFFSET] & (SFF8436_SONET_OC48_IR))
> +		printf("%s SONET: OC-48, intermediate reach\n", pfx);
> +	if (id[SFF8436_SONET_COMP_OFFSET] & (SFF8436_SONET_OC48_SR))
> +		printf("%s SONET: OC-48, short reach\n", pfx);
> +
> +	/* SAS/SATA Compliance Codes */
> +	if (id[SFF8436_SAS_COMP_OFFSET] & (SFF8436_SAS_6G))
> +		printf("%s SAS 6.0G\n", pfx);
> +	if (id[SFF8436_SAS_COMP_OFFSET] & (SFF8436_SAS_3G))
> +		printf("%s SAS 3.0G\n", pfx);
> +
> +	/* Ethernet Compliance Codes */
> +	if (id[SFF8436_GIGE_COMP_OFFSET] & SFF8436_GIGE_1000_BASE_T)
> +		printf("%s Ethernet: 1000BASE-T\n", pfx);
> +	if (id[SFF8436_GIGE_COMP_OFFSET] & SFF8436_GIGE_1000_BASE_CX)
> +		printf("%s Ethernet: 1000BASE-CX\n", pfx);
> +	if (id[SFF8436_GIGE_COMP_OFFSET] & SFF8436_GIGE_1000_BASE_LX)
> +		printf("%s Ethernet: 1000BASE-LX\n", pfx);
> +	if (id[SFF8436_GIGE_COMP_OFFSET] & SFF8436_GIGE_1000_BASE_SX)
> +		printf("%s Ethernet: 1000BASE-SX\n", pfx);
> +
> +	/* Fibre Channel link length */
> +	if (id[SFF8436_FC_LEN_OFFSET] & SFF8436_FC_LEN_VERY_LONG)
> +		printf("%s FC: very long distance (V)\n", pfx);
> +	if (id[SFF8436_FC_LEN_OFFSET] & SFF8436_FC_LEN_SHORT)
> +		printf("%s FC: short distance (S)\n", pfx);
> +	if (id[SFF8436_FC_LEN_OFFSET] & SFF8436_FC_LEN_INT)
> +		printf("%s FC: intermediate distance (I)\n", pfx);
> +	if (id[SFF8436_FC_LEN_OFFSET] & SFF8436_FC_LEN_LONG)
> +		printf("%s FC: long distance (L)\n", pfx);
> +	if (id[SFF8436_FC_LEN_OFFSET] & SFF8436_FC_LEN_MED)
> +		printf("%s FC: medium distance (M)\n", pfx);
> +
> +	/* Fibre Channel transmitter technology */
> +	if (id[SFF8436_FC_LEN_OFFSET] & SFF8436_FC_TECH_LONG_LC)
> +		printf("%s FC: Longwave laser (LC)\n", pfx);
> +	if (id[SFF8436_FC_LEN_OFFSET] & SFF8436_FC_TECH_ELEC_INTER)
> +		printf("%s FC: Electrical inter-enclosure (EL)\n", pfx);
> +	if (id[SFF8436_FC_TECH_OFFSET] & SFF8436_FC_TECH_ELEC_INTRA)
> +		printf("%s FC: Electrical intra-enclosure (EL)\n", pfx);
> +	if (id[SFF8436_FC_TECH_OFFSET] & SFF8436_FC_TECH_SHORT_WO_OFC)
> +		printf("%s FC: Shortwave laser w/o OFC (SN)\n", pfx);
> +	if (id[SFF8436_FC_TECH_OFFSET] & SFF8436_FC_TECH_SHORT_W_OFC)
> +		printf("%s FC: Shortwave laser with OFC (SL)\n", pfx);
> +	if (id[SFF8436_FC_TECH_OFFSET] & SFF8436_FC_TECH_LONG_LL)
> +		printf("%s FC: Longwave laser (LL)\n", pfx);
> +
> +	/* Fibre Channel transmission media */
> +	if (id[SFF8436_FC_TRANS_MEDIA_OFFSET] & SFF8436_FC_TRANS_MEDIA_TW)
> +		printf("%s FC: Twin Axial Pair (TW)\n", pfx);
> +	if (id[SFF8436_FC_TRANS_MEDIA_OFFSET] & SFF8436_FC_TRANS_MEDIA_TP)
> +		printf("%s FC: Twisted Pair (TP)\n", pfx);
> +	if (id[SFF8436_FC_TRANS_MEDIA_OFFSET] & SFF8436_FC_TRANS_MEDIA_MI)
> +		printf("%s FC: Miniature Coax (MI)\n", pfx);
> +	if (id[SFF8436_FC_TRANS_MEDIA_OFFSET] & SFF8436_FC_TRANS_MEDIA_TV)
> +		printf("%s FC: Video Coax (TV)\n", pfx);
> +	if (id[SFF8436_FC_TRANS_MEDIA_OFFSET] & SFF8436_FC_TRANS_MEDIA_M6)
> +		printf("%s FC: Multimode, 62.5m (M6)\n", pfx);
> +	if (id[SFF8436_FC_TRANS_MEDIA_OFFSET] & SFF8436_FC_TRANS_MEDIA_M5)
> +		printf("%s FC: Multimode, 50m (M5)\n", pfx);
> +	if (id[SFF8436_FC_TRANS_MEDIA_OFFSET] & SFF8436_FC_TRANS_MEDIA_OM3)
> +		printf("%s FC: Multimode, 50um (OM3)\n", pfx);
> +	if (id[SFF8436_FC_TRANS_MEDIA_OFFSET] & SFF8436_FC_TRANS_MEDIA_SM)
> +		printf("%s FC: Single Mode (SM)\n", pfx);
> +
> +	/* Fibre Channel speed */
> +	if (id[SFF8436_FC_SPEED_OFFSET] & SFF8436_FC_SPEED_1200_MBPS)
> +		printf("%s FC: 1200 MBytes/sec\n", pfx);
> +	if (id[SFF8436_FC_SPEED_OFFSET] & SFF8436_FC_SPEED_800_MBPS)
> +		printf("%s FC: 800 MBytes/sec\n", pfx);
> +	if (id[SFF8436_FC_SPEED_OFFSET] & SFF8436_FC_SPEED_1600_MBPS)
> +		printf("%s FC: 1600 MBytes/sec\n", pfx);
> +	if (id[SFF8436_FC_SPEED_OFFSET] & SFF8436_FC_SPEED_400_MBPS)
> +		printf("%s FC: 400 MBytes/sec\n", pfx);
> +	if (id[SFF8436_FC_SPEED_OFFSET] & SFF8436_FC_SPEED_200_MBPS)
> +		printf("%s FC: 200 MBytes/sec\n", pfx);
> +	if (id[SFF8436_FC_SPEED_OFFSET] & SFF8436_FC_SPEED_100_MBPS)
> +		printf("%s FC: 100 MBytes/sec\n", pfx);
> +}
> +
> +static void sff8436_show_encoding(const __u8 *id)
> +{
> +	printf("\t%-41s : 0x%02x", "Encoding", id[SFF8436_ENCODING_OFFSET]);
> +	switch (id[SFF8436_ENCODING_OFFSET]) {
> +	case SFF8436_ENCODING_UNSPEC:
> +		printf(" (unspecified)\n");
> +		break;
> +	case SFF8436_ENCODING_8B10B:
> +		printf(" (8B/10B)\n");
> +		break;
> +	case SFF8436_ENCODING_4B5B:
> +		printf(" (4B/5B)\n");
> +		break;
> +	case SFF8436_ENCODING_NRZ:
> +		printf(" (NRZ)\n");
> +		break;
> +	case SFF8436_ENCODING_SONET:
> +		printf(" (SONET Scrambled)\n");
> +		break;
> +	case SFF8436_ENCODING_64B66B:
> +		printf(" (64B/66B)\n");
> +		break;
> +	case SFF8436_ENCODING_MANCHESTER:
> +		printf(" (Manchester)\n");
> +		break;
> +	default:
> +		printf(" (reserved or unknown)\n");
> +		break;
> +	}
> +}
> +
> +static void sff8436_show_rate_identifier(const __u8 *id)
> +{
> +	/* TODO: Need to fix rate select logic */
> +	printf("\t%-41s : 0x%02x\n", "Rate identifier",
> +			id[SFF8436_EXT_RS_OFFSET]);
> +}
> +
> +static void sff8436_show_oui(const __u8 *id)
> +{
> +	printf("\t%-41s : %02x:%02x:%02x\n", "Vendor OUI",
> +	       id[SFF8436_VENDOR_OUI_OFFSET],
> +	       id[SFF8436_VENDOR_OUI_OFFSET + 1],
> +	       id[SFF8436_VENDOR_OUI_OFFSET + 2]);
> +}
> +
> +static void sff8436_show_wavelength_or_copper_compliance(const __u8 *id)
> +{
> +	printf("\t%-41s : 0x%02x", "Transmitter technology",
> +		(id[SFF8436_DEVICE_TECH_OFFSET] & SFF8436_TRANS_TECH_MASK));
> +
> +	switch (id[SFF8436_DEVICE_TECH_OFFSET] & SFF8436_TRANS_TECH_MASK) {
> +	case SFF8436_TRANS_850_VCSEL:
> +		printf(" (850 nm VCSEL)\n");
> +		break;
> +	case SFF8436_TRANS_1310_VCSEL:
> +		printf(" (1310 nm VCSEL)\n");
> +		break;
> +	case SFF8436_TRANS_1550_VCSEL:
> +		printf(" (1550 nm VCSEL)\n");
> +		break;
> +	case SFF8436_TRANS_1310_FP:
> +		printf(" (1310 nm FP)\n");
> +		break;
> +	case SFF8436_TRANS_1310_DFB:
> +		printf(" (1310 nm DFB)\n");
> +		break;
> +	case SFF8436_TRANS_1550_DFB:
> +		printf(" (1550 nm DFB)\n");
> +		break;
> +	case SFF8436_TRANS_1310_EML:
> +		printf(" (1310 nm EML)\n");
> +		break;
> +	case SFF8436_TRANS_1550_EML:
> +		printf(" (1550 nm EML)\n");
> +		break;
> +	case SFF8436_TRANS_OTHERS:
> +		printf(" (Others)\n");
> +		break;
> +	case SFF8436_TRANS_1490_DFB:
> +		printf(" (1490 nm DFB)\n");
> +		break;
> +	case SFF8436_TRANS_COPPER_PAS_UNEQUAL:
> +		printf(" (Copper cable unequalized)\n");
> +		break;
> +	case SFF8436_TRANS_COPPER_PAS_EQUAL:
> +		printf(" (Copper cable passive equalized)\n");
> +		break;
> +	case SFF8436_TRANS_COPPER_LNR_FAR_EQUAL:
> +		printf(" (Copper cable, near and far end "
> +			"limiting active equalizers)\n");
> +		break;
> +	case SFF8436_TRANS_COPPER_FAR_EQUAL:
> +		printf(" (Copper cable, far end limiting "
> +			"active equalizers)\n");
> +		break;
> +	case SFF8436_TRANS_COPPER_NEAR_EQUAL:
> +		printf(" (Copper cable, near end limiting "
> +			"active equalizers)\n");
> +		break;
> +	case SFF8436_TRANS_COPPER_LNR_EQUAL:
> +		printf(" (Copper cable, linear active equalizers)\n");
> +		break;
> +	}
> +
> +	if ((id[SFF8436_DEVICE_TECH_OFFSET] & SFF8436_TRANS_TECH_MASK)
> +			>= SFF8436_TRANS_COPPER_PAS_UNEQUAL) {
> +		printf("\t%-41s : %udb\n", "Attenuation at 2.5GHz",
> +			id[SFF8436_WAVELEN_HIGH_BYTE_OFFSET]);
> +		printf("\t%-41s : %udb\n", "Attenuation at 5.0GHz",
> +			id[SFF8436_WAVELEN_LOW_BYTE_OFFSET]);
> +	} else {
> +		printf("\t%-41s : %.3lfnm\n", "Laser wavelength",
> +			(((id[SFF8436_WAVELEN_HIGH_BYTE_OFFSET] << 8) |
> +				id[SFF8436_WAVELEN_LOW_BYTE_OFFSET])*0.05));
> +		printf("\t%-41s : %.3lfnm\n", "Laser wavelength tolerance",
> +			(((id[SFF8436_WAVE_TOL_HIGH_BYTE_OFFSET] << 8) |
> +			id[SFF8436_WAVE_TOL_LOW_BYTE_OFFSET])*0.005));
> +	}
> +}
> +
> +static void sff8436_show_value_with_unit(const __u8 *id, unsigned int reg,
> +					 const char *name, unsigned int mult,
> +					 const char *unit)
> +{
> +	unsigned int val = id[reg];
> +
> +	printf("\t%-41s : %u%s\n", name, val * mult, unit);
> +}
> +
> +static void sff8436_show_ascii(const __u8 *id, unsigned int first_reg,
> +			       unsigned int last_reg, const char *name)
> +{
> +	unsigned int reg, val;
> +
> +	printf("\t%-41s : ", name);
> +	for (reg = first_reg; reg <= last_reg; reg++) {
> +		val = id[reg];
> +		putchar(((val >= 32) && (val <= 126)) ? val : '_');
> +	}
> +	printf("\n");
> +}
> +
> +static double convert_mw_to_dbm(double mw)
> +{
> +	return (10. * log10(mw / 1000.)) + 30.;
> +}
> +
> +/* Most common case: 16-bit unsigned integer in a certain unit */
> +#define OFFSET_TO_U16(offset) \
> +	(id[offset] << 8 | id[offset + 1])
> +
> +/*
> + * 2-byte internal temperature conversions:
> + * First byte is a signed 8-bit integer, which is the temp decimal part
> + * Second byte are 1/256th of degree, which are added to the dec part.
> + */
> +#define SFF8436_OFFSET_TO_TEMP(offset) ((__s16)OFFSET_TO_U16(offset))
> +
> +static void sff8436_dom_parse(const __u8 *id, struct sff8436_diags *sd)
> +{
> +	int i = 0;
> +
> +	/* Monitoring Thresholds for Alarms and Warnings */
> +	sd->thresh_sfp_voltage[HALRM] = OFFSET_TO_U16(SFF8436_VCC_HALRM);
> +	sd->thresh_sfp_voltage[LALRM] = OFFSET_TO_U16(SFF8436_VCC_LALRM);
> +	sd->thresh_sfp_voltage[HWARN] = OFFSET_TO_U16(SFF8436_VCC_HWARN);
> +	sd->thresh_sfp_voltage[LWARN] = OFFSET_TO_U16(SFF8436_VCC_LWARN);
> +
> +	sd->thresh_sfp_temp[HALRM] = SFF8436_OFFSET_TO_TEMP(SFF8436_TEMP_HALRM);
> +	sd->thresh_sfp_temp[LALRM] = SFF8436_OFFSET_TO_TEMP(SFF8436_TEMP_LALRM);
> +	sd->thresh_sfp_temp[HWARN] = SFF8436_OFFSET_TO_TEMP(SFF8436_TEMP_HWARN);
> +	sd->thresh_sfp_temp[LWARN] = SFF8436_OFFSET_TO_TEMP(SFF8436_TEMP_LWARN);
> +
> +	sd->thresh_bias_cur[HALRM] = OFFSET_TO_U16(SFF8436_TX_BIAS_HALRM);
> +	sd->thresh_bias_cur[LALRM] = OFFSET_TO_U16(SFF8436_TX_BIAS_LALRM);
> +	sd->thresh_bias_cur[HWARN] = OFFSET_TO_U16(SFF8436_TX_BIAS_HWARN);
> +	sd->thresh_bias_cur[LWARN] = OFFSET_TO_U16(SFF8436_TX_BIAS_LWARN);
> +
> +	sd->thresh_rx_power[HALRM] = OFFSET_TO_U16(SFF8436_RX_PWR_HALRM);
> +	sd->thresh_rx_power[LALRM] = OFFSET_TO_U16(SFF8436_RX_PWR_LALRM);
> +	sd->thresh_rx_power[HWARN] = OFFSET_TO_U16(SFF8436_RX_PWR_HWARN);
> +	sd->thresh_rx_power[LWARN] = OFFSET_TO_U16(SFF8436_RX_PWR_LWARN);
> +
> +	/* Current Values for Module */
> +	sd->sfp_voltage = OFFSET_TO_U16(SFF8436_VCC_CURR);
> +	sd->sfp_temp = SFF8436_OFFSET_TO_TEMP(SFF8436_TEMP_CURR);
> +
> +	/* Channel Specific Data */
> +	for (i = 0; i < MAX_CHANNEL_NUM; i++) {
> +		u8 rx_power_offset, tx_bias_offset;
> +
> +		switch (i) {
> +		case 0:
> +			rx_power_offset = SFF8436_RX_PWR_1_OFFSET;
> +			tx_bias_offset = SFF8436_TX_BIAS_1_OFFSET;
> +			break;
> +		case 1:
> +			rx_power_offset = SFF8436_RX_PWR_2_OFFSET;
> +			tx_bias_offset = SFF8436_TX_BIAS_2_OFFSET;
> +			break;
> +		case 2:
> +			rx_power_offset = SFF8436_RX_PWR_3_OFFSET;
> +			tx_bias_offset = SFF8436_TX_BIAS_3_OFFSET;
> +			break;
> +		case 3:
> +			rx_power_offset = SFF8436_RX_PWR_4_OFFSET;
> +			tx_bias_offset = SFF8436_TX_BIAS_4_OFFSET;
> +			break;
> +		default:
> +			printf(" Invalid channel: %d\n", i);
> +			break;
> +		}
> +		sd->scd[i].bias_cur = OFFSET_TO_U16(tx_bias_offset);
> +		sd->scd[i].rx_power = OFFSET_TO_U16(rx_power_offset);
> +	}
> +
> +}
> +
> +static void sff8436_show_dom(const __u8 *id)
> +{
> +	struct sff8436_diags sd;
> +	char *rx_power_string = NULL;
> +	char power_string[MAX_DESC_SIZE];
> +	int i;
> +
> +	/*
> +	 * There is no clear identifier to signify the existance of
> +	 * optical diagnostics similar to SFF-8472. So checking existance
> +	 * of page 3, will provide the gurantee for existance of alarms
> +	 * and thresholds
> +	 */
> +	sd.supports_alarms = id[SFF8436_STATUS_2_OFFSET] &
> +						SFF8436_STATUS_PAGE_3_PRESENT;
> +	sd.rx_power_type = id[SFF8436_DIAG_TYPE_OFFSET] &
> +						SFF8436_RX_PWR_TYPE_MASK;
> +
> +	sff8436_dom_parse(id, &sd);
> +
> +# define PRINT_xX_PWR(string, var)                             \
> +	printf("\t%-41s : %.4f mW / %.2f dBm\n", (string),           \
> +	       (double)((var) / 10000.),                             \
> +	       convert_mw_to_dbm((double)((var) / 10000.)))
> +
> +#define PRINT_BIAS(string, bias_cur)                            \
> +	printf("\t%-41s : %.3f mA\n", (string),                       \
> +	       (double)(bias_cur / 500.))
> +
> +#define PRINT_TEMP(string, temp)                                    \
> +	printf("\t%-41s : %.2f degrees C / %.2f degrees F\n", (string),   \
> +	       (double)(temp / 256.), (double)(temp / 256. * 1.8 + 32.))
> +
> +
> +#define PRINT_VCC(string, sfp_voltage)                               \
> +	printf("\t%-41s : %.4f V\n", (string),                             \
> +	       (double)(sfp_voltage / 10000.))
> +
> +#define PRINT_THRESH_BIAS(string, index)                              \
> +	PRINT_BIAS(string, sd.thresh_bias_cur[(index)])
> +
> +# define PRINT_xX_THRESH_PWR(string, var, index)                       \
> +	PRINT_xX_PWR(string, (var)[(index)])
> +
> +#define PRINT_THRESH_TEMP(string, index)                               \
> +	PRINT_TEMP(string, sd.thresh_sfp_temp[(index)])
> +
> +#define PRINT_THRESH_VCC(string, index)                                 \
> +	PRINT_VCC(string, sd.thresh_sfp_temp[(index)])
> +
> +	for (i = 0; i < MAX_CHANNEL_NUM; i++) {
> +		snprintf(power_string, MAX_DESC_SIZE, "%s (Channel %d)",
> +					"Laser bias current", i+1);
> +		PRINT_BIAS(power_string, sd.scd[i].bias_cur);
> +	}
> +
> +	if (!sd.rx_power_type)
> +		rx_power_string = "Receiver signal OMA";
> +	else
> +		rx_power_string = "Rcvr signal avg optical power";
> +
> +	for (i = 0; i < MAX_CHANNEL_NUM; i++) {
> +		snprintf(power_string, MAX_DESC_SIZE, "%s(Channel %d)",
> +					rx_power_string, i+1);
> +		PRINT_xX_PWR(power_string, sd.scd[i].rx_power);
> +	}
> +
> +	PRINT_TEMP("Module temperature", sd.sfp_temp);
> +	PRINT_VCC("Module voltage", sd.sfp_voltage);
> +
> +	printf("\t%-41s : %s\n", "Alarm/warning flags implemented",
> +	       (!sd.supports_alarms ? "Yes" : "No"));
> +	if (!sd.supports_alarms) {
> +
> +		for (i = 0; sff8436_aw_flags[i].str; ++i) {
> +			printf("\t%-41s : %s\n", sff8436_aw_flags[i].str,
> +			       id[sff8436_aw_flags[i].offset]
> +			       & sff8436_aw_flags[i].value ? "On" : "Off");
> +		}
> +
> +		PRINT_THRESH_BIAS("Laser bias current high alarm threshold",
> +							HALRM);
> +		PRINT_THRESH_BIAS("Laser bias current low alarm threshold",
> +							LALRM);
> +		PRINT_THRESH_BIAS("Laser bias current high warning threshold",
> +							HWARN);
> +		PRINT_THRESH_BIAS("Laser bias current low warning threshold",
> +							LWARN);
> +
> +		PRINT_THRESH_TEMP("Module temperature high alarm threshold",
> +							HALRM);
> +		PRINT_THRESH_TEMP("Module temperature low alarm threshold",
> +							LALRM);
> +		PRINT_THRESH_TEMP("Module temperature high warning threshold",
> +							HWARN);
> +		PRINT_THRESH_TEMP("Module temperature low warning threshold",
> +							LWARN);
> +
> +		PRINT_THRESH_VCC("Module voltage high alarm threshold",
> +							HALRM);
> +		PRINT_THRESH_VCC("Module voltage low alarm threshold",
> +							LALRM);
> +		PRINT_THRESH_VCC("Module voltage high warning threshold",
> +							HWARN);
> +		PRINT_THRESH_VCC("Module voltage low warning threshold",
> +							LWARN);
> +
> +		PRINT_xX_THRESH_PWR("Laser rx power high alarm threshold",
> +			     sd.thresh_rx_power, HALRM);
> +		PRINT_xX_THRESH_PWR("Laser rx power low alarm threshold",
> +			     sd.thresh_rx_power, LALRM);
> +		PRINT_xX_THRESH_PWR("Laser rx power high warning threshold",
> +			     sd.thresh_rx_power, HWARN);
> +		PRINT_xX_THRESH_PWR("Laser rx power low warning threshold",
> +			     sd.thresh_rx_power, LWARN);
> +	}
> +
> +}
> +void sff8436_show_all(const __u8 *id)
> +{
> +
> +	sff8436_show_identifier(id);
> +	if (id[SFF8436_ID_OFFSET] == 0x0d) {
> +		sff8436_show_ext_identifier(id);
> +		sff8436_show_connector(id);
> +		sff8436_show_transceiver(id);
> +		sff8436_show_encoding(id);
> +		sff8436_show_value_with_unit(id, SFF8436_BR_NOMINAL_OFFSET,
> +				"BR, Nominal", 100, "Mbps");
> +		sff8436_show_rate_identifier(id);
> +		sff8436_show_value_with_unit(id, SFF8436_SM_LEN_OFFSET,
> +			     "Length (SMF,km)", 1, "km");
> +		sff8436_show_value_with_unit(id, SFF8436_OM3_LEN_OFFSET,
> +				"Length (OM3 50um)", 2, "m");
> +		sff8436_show_value_with_unit(id, SFF8436_OM2_LEN_OFFSET,
> +				"Length (OM2 50um)", 1, "m");
> +		sff8436_show_value_with_unit(id, SFF8436_OM1_LEN_OFFSET,
> +			     "Length (OM1 62.5um)", 1, "m");
> +		sff8436_show_value_with_unit(id, SFF8436_CBL_LEN_OFFSET,
> +			     "Length (Copper or Active cable)", 1, "m");
> +		sff8436_show_wavelength_or_copper_compliance(id);
> +		sff8436_show_ascii(id, SFF8436_VENDOR_NAME_START_OFFSET,
> +			       SFF8436_VENDOR_NAME_END_OFFSET, "Vendor name");
> +		sff8436_show_oui(id);
> +		sff8436_show_ascii(id, SFF8436_VENDOR_PN_START_OFFSET,
> +			       SFF8436_VENDOR_PN_END_OFFSET, "Vendor PN");
> +		sff8436_show_ascii(id, SFF8436_VENDOR_REV_START_OFFSET,
> +			       SFF8436_VENDOR_REV_END_OFFSET, "Vendor rev");
> +		sff8436_show_ascii(id, SFF8436_VENDOR_SN_START_OFFSET,
> +			       SFF8436_VENDOR_SN_END_OFFSET, "Vendor SN");
> +		sff8436_show_dom(id);
> +	}
> +}
> diff --git a/qsfp.h b/qsfp.h
> new file mode 100644
> index 0000000..28107fa
> --- /dev/null
> +++ b/qsfp.h
> @@ -0,0 +1,541 @@
> +/*
> + * SFF 8436 standards based QSFP EEPROM Field Definitions
> + *
> + * Vidya Ravipati <[email-masked]>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
> + * GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> + * along with this program; if not, write to the Free Software
> + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
> + */
> +
> +#ifndef QSFP_H__
> +#define QSFP_H__
> +
> +
> +/*------------------------------------------------------------------------------
> + *
> + * QSFP EEPROM data structures
> + *
> + * register info from SFF-8436 Rev 4.8
> + */
> +
> +/*------------------------------------------------------------------------------
> + *
> + * Lower Memory Page 00h
> + * Measurement, Diagnostic and Control Functions
> + *
> + */
> +/* Identifier - 0 */
> +#define	SFF8436_ID_OFFSET				0x00
> +#define	 SFF8436_ID_UNKNOWN				0x00
> +#define	 SFF8436_ID_GBIC				0x01
> +#define	 SFF8436_ID_SOLDERED_MODULE		0x02
> +#define	 SFF8436_ID_SFP					0x03
> +#define	 SFF8436_ID_300_PIN_XBI			0x04
> +#define	 SFF8436_ID_XENPAK				0x05
> +#define	 SFF8436_ID_XFP					0x06
> +#define	 SFF8436_ID_XFF					0x07
> +#define	 SFF8436_ID_XFP_E				0x08
> +#define	 SFF8436_ID_XPAK				0x09
> +#define	 SFF8436_ID_X2					0x0A
> +#define	 SFF8436_ID_DWDM_SFP			0x0B
> +#define	 SFF8436_ID_DWDM_QSFP			0x0C
> +#define	 SFF8436_ID_DWDM_QSFP_PLUS		0x0D
> +
> +#define	SFF8436_STATUS_1_OFFSET		0x01
> +#define	SFF8436_STATUS_2_OFFSET		0x02
> +/* Flat Memory:0- Paging, 1- Page 0 only */
> +#define	 SFF8436_STATUS_PAGE_3_PRESENT		(1 << 2)
> +#define	 SFF8436_STATUS_INTL_OUTPUT			(1 << 1)
> +#define	 SFF8436_STATUS_DATA_NOT_READY		(1 << 0)
> +
> +/* Channel Status Interrupt Flags - 3-5 */
> +#define	SFF8436_LOS_AW_OFFSET	0x03
> +#define	 SFF8436_TX4_LOS_AW		(1 << 7)
> +#define	 SFF8436_TX3_LOS_AW		(1 << 6)
> +#define	 SFF8436_TX2_LOS_AW		(1 << 5)
> +#define	 SFF8436_TX1_LOS_AW		(1 << 4)
> +#define	 SFF8436_RX4_LOS_AW		(1 << 3)
> +#define	 SFF8436_RX3_LOS_AW		(1 << 2)
> +#define	 SFF8436_RX2_LOS_AW		(1 << 1)
> +#define	 SFF8436_RX1_LOS_AW		(1 << 0)
> +
> +#define	SFF8436_FAULT_AW_OFFSET	0x04
> +#define	 SFF8436_TX4_FAULT_AW	(1 << 3)
> +#define	 SFF8436_TX3_FAULT_AW	(1 << 2)
> +#define	 SFF8436_TX2_FAULT_AW	(1 << 1)
> +#define	 SFF8436_TX1_FAULT_AW	(1 << 0)
> +
> +/* Module Monitor Interrupt Flags - 6-8 */
> +#define	SFF8436_TEMP_AW_OFFSET	0x06
> +#define	 SFF8436_TEMP_HALARM_STATUS		(1 << 7)
> +#define	 SFF8436_TEMP_LALARM_STATUS		(1 << 6)
> +#define	 SFF8436_TEMP_HWARN_STATUS		(1 << 5)
> +#define	 SFF8436_TEMP_LWARN_STATUS		(1 << 4)
> +
> +#define	SFF8436_VCC_AW_OFFSET	0x07
> +#define	 SFF8436_VCC_HALARM_STATUS		(1 << 7)
> +#define	 SFF8436_VCC_LALARM_STATUS		(1 << 6)
> +#define	 SFF8436_VCC_HWARN_STATUS		(1 << 5)
> +#define	 SFF8436_VCC_LWARN_STATUS		(1 << 4)
> +
> +/* Channel Monitor Interrupt Flags - 9-21 */
> +#define	SFF8436_RX_PWR_12_AW_OFFSET	0x09
> +#define	 SFF8436_RX_PWR_1_HALARM		(1 << 7)
> +#define	 SFF8436_RX_PWR_1_LALARM		(1 << 6)
> +#define	 SFF8436_RX_PWR_1_HWARN			(1 << 5)
> +#define	 SFF8436_RX_PWR_1_LWARN			(1 << 4)
> +#define	 SFF8436_RX_PWR_2_HALARM		(1 << 3)
> +#define	 SFF8436_RX_PWR_2_LALARM		(1 << 2)
> +#define	 SFF8436_RX_PWR_2_HWARN			(1 << 1)
> +#define	 SFF8436_RX_PWR_2_LWARN			(1 << 0)
> +
> +#define	SFF8436_RX_PWR_34_AW_OFFSET	0x0A
> +#define	 SFF8436_RX_PWR_3_HALARM		(1 << 7)
> +#define	 SFF8436_RX_PWR_3_LALARM		(1 << 6)
> +#define	 SFF8436_RX_PWR_3_HWARN			(1 << 5)
> +#define	 SFF8436_RX_PWR_3_LWARN			(1 << 4)
> +#define	 SFF8436_RX_PWR_4_HALARM		(1 << 3)
> +#define	 SFF8436_RX_PWR_4_LALARM		(1 << 2)
> +#define	 SFF8436_RX_PWR_4_HWARN			(1 << 1)
> +#define	 SFF8436_RX_PWR_4_LWARN			(1 << 0)
> +
> +#define	SFF8436_TX_BIAS_12_AW_OFFSET	0x0B
> +#define	 SFF8436_TX_BIAS_1_HALARM		(1 << 7)
> +#define	 SFF8436_TX_BIAS_1_LALARM		(1 << 6)
> +#define	 SFF8436_TX_BIAS_1_HWARN		(1 << 5)
> +#define	 SFF8436_TX_BIAS_1_LWARN		(1 << 4)
> +#define	 SFF8436_TX_BIAS_2_HALARM		(1 << 3)
> +#define	 SFF8436_TX_BIAS_2_LALARM		(1 << 2)
> +#define	 SFF8436_TX_BIAS_2_HWARN		(1 << 1)
> +#define	 SFF8436_TX_BIAS_2_LWARN		(1 << 0)
> +
> +#define	SFF8436_TX_BIAS_34_AW_OFFSET	0xC
> +#define	 SFF8436_TX_BIAS_3_HALARM		(1 << 7)
> +#define	 SFF8436_TX_BIAS_3_LALARM		(1 << 6)
> +#define	 SFF8436_TX_BIAS_3_HWARN		(1 << 5)
> +#define	 SFF8436_TX_BIAS_3_LWARN		(1 << 4)
> +#define	 SFF8436_TX_BIAS_4_HALARM		(1 << 3)
> +#define	 SFF8436_TX_BIAS_4_LALARM		(1 << 2)
> +#define	 SFF8436_TX_BIAS_4_HWARN		(1 << 1)
> +#define	 SFF8436_TX_BIAS_4_LWARN		(1 << 0)
> +
> +/* Module Monitoring Values - 22-33 */
> +#define	SFF8436_TEMP_CURR			0x16
> +#define	SFF8436_TEMP_MSB_OFFSET		0x16
> +#define	SFF8436_TEMP_LSB_OFFSET		0x17
> +
> +#define	SFF8436_VCC_CURR			0x1A
> +#define	SFF8436_VCC_MSB_OFFSET		0x1A
> +#define	SFF8436_VCC_LSB_OFFSET		0x1B
> +
> +/* Channel Monitoring Values - 34-81 */
> +#define	SFF8436_RX_PWR_1_OFFSET		0x22
> +#define	SFF8436_RX_PWR_2_OFFSET		0x24
> +#define	SFF8436_RX_PWR_3_OFFSET		0x26
> +#define	SFF8436_RX_PWR_4_OFFSET		0x28
> +
> +#define	SFF8436_TX_BIAS_1_OFFSET	0x2A
> +#define	SFF8436_TX_BIAS_2_OFFSET	0x2C
> +#define	SFF8436_TX_BIAS_3_OFFSET	0x2E
> +#define	SFF8436_TX_BIAS_4_OFFSET	0x30
> +
> +/* Control Bytes - 86 - 99 */
> +#define	SFF8436_TX_DISABLE_OFFSET	0x56
> +#define	 SFF8436_TX_DISABLE_4			(1 << 3)
> +#define	 SFF8436_TX_DISABLE_3			(1 << 2)
> +#define	 SFF8436_TX_DISABLE_2			(1 << 1)
> +#define	 SFF8436_TX_DISABLE_1			(1 << 0)
> +
> +#define	SFF8436_RX_RATE_SELECT_OFFSET	0x57
> +#define	 SFF8436_RX_RATE_SELECT_4_MASK		(3 << 6)
> +#define	 SFF8436_RX_RATE_SELECT_3_MASK		(3 << 4)
> +#define	 SFF8436_RX_RATE_SELECT_2_MASK		(3 << 2)
> +#define	 SFF8436_RX_RATE_SELECT_1_MASK		(3 << 0)
> +
> +#define	SFF8436_TX_RATE_SELECT_OFFSET	0x58
> +#define	 SFF8436_TX_RATE_SELECT_4_MASK		(3 << 6)
> +#define	 SFF8436_TX_RATE_SELECT_3_MASK		(3 << 4)
> +#define	 SFF8436_TX_RATE_SELECT_2_MASK		(3 << 2)
> +#define	 SFF8436_TX_RATE_SELECT_1_MASK		(3 << 0)
> +
> +#define	SFF8436_RX_APP_SELECT_4_OFFSET	0x58
> +#define	SFF8436_RX_APP_SELECT_3_OFFSET	0x59
> +#define	SFF8436_RX_APP_SELECT_2_OFFSET	0x5A
> +#define	SFF8436_RX_APP_SELECT_1_OFFSET	0x5B
> +
> +#define	SFF8436_PWR_MODE_OFFSET		0x5D
> +#define	 SFF8436_LOW_PWR_MODE			(1 << 1)
> +#define	 SFF8436_PWR_OVERRIDE			(1 << 0)
> +
> +#define	SFF8436_TX_APP_SELECT_4_OFFSET	0x5E
> +#define	SFF8436_TX_APP_SELECT_3_OFFSET	0x5F
> +#define	SFF8436_TX_APP_SELECT_2_OFFSET	0x60
> +#define	SFF8436_TX_APP_SELECT_1_OFFSET	0x61
> +
> +#define	SFF8436_LOS_MASK_OFFSET		0x64
> +#define	 SFF8436_TX_LOS_4_MASK			(1 << 7)
> +#define	 SFF8436_TX_LOS_3_MASK			(1 << 6)
> +#define	 SFF8436_TX_LOS_2_MASK			(1 << 5)
> +#define	 SFF8436_TX_LOS_1_MASK			(1 << 4)
> +#define	 SFF8436_RX_LOS_4_MASK			(1 << 3)
> +#define	 SFF8436_RX_LOS_3_MASK			(1 << 2)
> +#define	 SFF8436_RX_LOS_2_MASK			(1 << 1)
> +#define	 SFF8436_RX_LOS_1_MASK			(1 << 0)
> +
> +#define	SFF8436_FAULT_MASK_OFFSET	0x65
> +#define	 SFF8436_TX_FAULT_1_MASK		(1 << 3)
> +#define	 SFF8436_TX_FAULT_2_MASK		(1 << 2)
> +#define	 SFF8436_TX_FAULT_3_MASK		(1 << 1)
> +#define	 SFF8436_TX_FAULT_4_MASK		(1 << 0)
> +
> +#define	SFF8436_TEMP_MASK_OFFSET	0x67
> +#define	 SFF8436_TEMP_HALARM_MASK		(1 << 7)
> +#define	 SFF8436_TEMP_LALARM_MASK		(1 << 6)
> +#define	 SFF8436_TEMP_HWARN_MASK		(1 << 5)
> +#define	 SFF8436_TEMP_LWARN_MASK		(1 << 4)
> +
> +#define	SFF8436_VCC_MASK_OFFSET		0x68
> +#define	 SFF8436_VCC_HALARM_MASK		(1 << 7)
> +#define	 SFF8436_VCC_LALARM_MASK		(1 << 6)
> +#define	 SFF8436_VCC_HWARN_MASK			(1 << 5)
> +#define	 SFF8436_VCC_LWARN_MASK			(1 << 4)
> +
> +/*------------------------------------------------------------------------------
> + *
> + * Upper Memory Page 00h
> + * Serial ID - Base ID, Extended ID and Vendor Specific ID fields
> + *
> + */
> +/* Identifier - 128 */
> +/* Identifier values same as Lower Memory Page 00h */
> +#define	SFF8436_UPPER_PAGE_0_ID_OFFSET		0x80
> +
> +/* Extended Identifier - 128 */
> +#define SFF8436_EXT_ID_OFFSET		0x81
> +#define	 SFF8436_EXT_ID_PWR_CLASS_MASK		0xC0
> +#define	  SFF8436_EXT_ID_PWR_CLASS_1		(0 << 6)
> +#define	  SFF8436_EXT_ID_PWR_CLASS_2		(1 << 6)
> +#define	  SFF8436_EXT_ID_PWR_CLASS_3		(2 << 6)
> +#define	  SFF8436_EXT_ID_PWR_CLASS_4		(3 << 6)
> +#define	 SFF8436_EXT_ID_CLIE_MASK		    0x10
> +#define	  SFF8436_EXT_ID_CLIEI_CODE_PRESENT	(1 << 4)
> +#define	 SFF8436_EXT_ID_CDR_TX_MASK			0x08
> +#define	  SFF8436_EXT_ID_CDR_TX_PRESENT		(1 << 3)
> +#define	 SFF8436_EXT_ID_CDR_RX_MASK			0x04
> +#define	  SFF8436_EXT_ID_CDR_RX_PRESENT		(1 << 2)
> +
> +/* Connector Values offset - 130 */
> +#define	SFF8436_CTOR_OFFSET		0x82
> +#define	 SFF8436_CTOR_UNKNOWN			0x00
> +#define	 SFF8436_CTOR_SC				0x01
> +#define	 SFF8436_CTOR_FC_STYLE_1		0x02
> +#define	 SFF8436_CTOR_FC_STYLE_2		0x03
> +#define	 SFF8436_CTOR_BNC_TNC			0x04
> +#define	 SFF8436_CTOR_FC_COAX			0x05
> +#define	 SFF8436_CTOR_FIBER_JACK		0x06
> +#define	 SFF8436_CTOR_LC				0x07
> +#define	 SFF8436_CTOR_MT_RJ				0x08
> +#define	 SFF8436_CTOR_MU				0x09
> +#define	 SFF8436_CTOR_SG				0x0A
> +#define	 SFF8436_CTOR_OPT_PT			0x0B
> +#define	 SFF8436_CTOR_MPO				0x0C
> +/* 0D-1Fh --- Reserved */
> +#define	 SFF8436_CTOR_HSDC_II			0x20
> +#define	 SFF8436_CTOR_COPPER_PT			0x21
> +#define	 SFF8436_CTOR_RJ45				0x22
> +#define	 SFF8436_CTOR_NO_SEPARABLE		0x23
> +
> +/* Specification Compliance - 131-138 */
> +/* Ethernet Compliance Codes - 131 */
> +#define	SFF8436_ETHERNET_COMP_OFFSET	0x83
> +#define	 SFF8436_ETHERNET_RSRVD			(1 << 7)
> +#define	 SFF8436_ETHERNET_10G_LRM		(1 << 6)
> +#define	 SFF8436_ETHERNET_10G_LR		(1 << 5)
> +#define	 SFF8436_ETHERNET_10G_SR		(1 << 4)
> +#define	 SFF8436_ETHERNET_40G_CR4		(1 << 3)
> +#define	 SFF8436_ETHERNET_40G_SR4		(1 << 2)
> +#define	 SFF8436_ETHERNET_40G_LR4		(1 << 1)
> +#define	 SFF8436_ETHERNET_40G_ACTIVE	(1 << 0)
> +
> +/* SONET Compliance Codes - 132 */
> +#define	SFF8436_SONET_COMP_OFFSET	0x84
> +#define	 SFF8436_SONET_40G_OTN			(1 << 3)
> +#define	 SFF8436_SONET_OC48_LR			(1 << 2)
> +#define	 SFF8436_SONET_OC48_IR			(1 << 1)
> +#define	 SFF8436_SONET_OC48_SR			(1 << 0)
> +
> +/* SAS/SATA Complaince Codes - 133 */
> +#define	SFF8436_SAS_COMP_OFFSET		0x85
> +#define	 SFF8436_SAS_6G				    (1 << 5)
> +#define	 SFF8436_SAS_3G				    (1 << 4)
> +
> +/* Gigabit Ethernet Compliance Codes - 134 */
> +#define	SFF8436_GIGE_COMP_OFFSET	0x86
> +#define	 SFF8436_GIGE_1000_BASE_T		(1 << 3)
> +#define	 SFF8436_GIGE_1000_BASE_CX		(1 << 2)
> +#define	 SFF8436_GIGE_1000_BASE_LX		(1 << 1)
> +#define	 SFF8436_GIGE_1000_BASE_SX		(1 << 0)
> +
> +
> +/* Fibre Channel Link length/Transmitter Tech. - 135,136 */
> +#define	SFF8436_FC_LEN_OFFSET		0x87
> +#define	 SFF8436_FC_LEN_VERY_LONG		(1 << 7)
> +#define	 SFF8436_FC_LEN_SHORT			(1 << 6)
> +#define	 SFF8436_FC_LEN_INT				(1 << 5)
> +#define	 SFF8436_FC_LEN_LONG			(1 << 4)
> +#define	 SFF8436_FC_LEN_MED				(1 << 3)
> +#define	 SFF8436_FC_TECH_LONG_LC		(1 << 1)
> +#define	 SFF8436_FC_TECH_ELEC_INTER		(1 << 0)
> +
> +#define	SFF8436_FC_TECH_OFFSET		0x88
> +#define	 SFF8436_FC_TECH_ELEC_INTRA			(1 << 7)
> +#define	 SFF8436_FC_TECH_SHORT_WO_OFC		(1 << 6)
> +#define	 SFF8436_FC_TECH_SHORT_W_OFC		(1 << 5)
> +#define	 SFF8436_FC_TECH_LONG_LL			(1 << 4)
> +
> +
> +/* Fibre Channel Transmitter Media - 137 */
> +#define	SFF8436_FC_TRANS_MEDIA_OFFSET	0x89
> +/* Twin Axial Pair */
> +#define	 SFF8436_FC_TRANS_MEDIA_TW		(1 << 7)
> +/* Shielded Twisted Pair */
> +#define	 SFF8436_FC_TRANS_MEDIA_TP		(1 << 6)
> +/* Miniature Coax */
> +#define	 SFF8436_FC_TRANS_MEDIA_MI		(1 << 5)
> +/* Video Coax */
> +#define	 SFF8436_FC_TRANS_MEDIA_TV		(1 << 4)
> +/* Multi-mode 62.5m */
> +#define	 SFF8436_FC_TRANS_MEDIA_M6		(1 << 3)
> +/* Multi-mode 50m */
> +#define	 SFF8436_FC_TRANS_MEDIA_M5		(1 << 2)
> +/* Multi-mode 50um */
> +#define	 SFF8436_FC_TRANS_MEDIA_OM3		(1 << 1)
> +/* Single Mode */
> +#define	 SFF8436_FC_TRANS_MEDIA_SM		(1 << 0)
> +
> +/* Fibre Channel Speed - 138 */
> +#define	SFF8436_FC_SPEED_OFFSET		0x8A
> +#define	 SFF8436_FC_SPEED_1200_MBPS		(1 << 7)
> +#define	 SFF8436_FC_SPEED_800_MBPS		(1 << 6)
> +#define	 SFF8436_FC_SPEED_1600_MBPS		(1 << 5)
> +#define	 SFF8436_FC_SPEED_400_MBPS		(1 << 4)
> +#define	 SFF8436_FC_SPEED_200_MBPS		(1 << 2)
> +#define	 SFF8436_FC_SPEED_100_MBPS		(1 << 0)
> +
> +/* Encoding - 139 */
> +#define	SFF8436_ENCODING_OFFSET		0x8B
> +#define	 SFF8436_ENCODING_MANCHESTER	0x06
> +#define	 SFF8436_ENCODING_64B66B		0x05
> +#define	 SFF8436_ENCODING_SONET			0x04
> +#define	 SFF8436_ENCODING_NRZ			0x03
> +#define	 SFF8436_ENCODING_4B5B			0x02
> +#define	 SFF8436_ENCODING_8B10B			0x01
> +#define	 SFF8436_ENCODING_UNSPEC		0x00
> +
> +/* BR, Nominal - 140 */
> +#define	SFF8436_BR_NOMINAL_OFFSET	0x8C
> +
> +/* Extended RateSelect - 141 */
> +#define	SFF8436_EXT_RS_OFFSET		0x8D
> +#define	 SFF8436_EXT_RS_V1			(1 << 0)
> +
> +/* Length (Standard SM Fiber)-km - 142 */
> +#define	SFF8436_SM_LEN_OFFSET		0x8E
> +
> +/* Length (OM3)-Unit 2m - 143 */
> +#define	SFF8436_OM3_LEN_OFFSET		0x8F
> +
> +/* Length (OM2)-Unit 1m - 144 */
> +#define	SFF8436_OM2_LEN_OFFSET		0x90
> +
> +/* Length (OM1)-Unit 1m - 145 */
> +#define	SFF8436_OM1_LEN_OFFSET		0x91
> +
> +/* Cable Assembly Length -Unit 1m - 146 */
> +#define	SFF8436_CBL_LEN_OFFSET		0x92
> +
> +/* Device Technology - 147 */
> +#define	SFF8436_DEVICE_TECH_OFFSET	0x93
> +/* Transmitter Technology */
> +#define	 SFF8436_TRANS_TECH_MASK			0xF0
> +/* Copper cable, linear active equalizers */
> +#define	 SFF8436_TRANS_COPPER_LNR_EQUAL		(15 << 4)
> +/* Copper cable, near end limiting active equalizers */
> +#define	 SFF8436_TRANS_COPPER_NEAR_EQUAL	(14 << 4)
> +/* Copper cable, far end limiting active equalizers */
> +#define	 SFF8436_TRANS_COPPER_FAR_EQUAL		(13 << 4)
> +/* Copper cable, near & far end limiting active equalizers */
> +#define	 SFF8436_TRANS_COPPER_LNR_FAR_EQUAL	(12 << 4)
> +/* Copper cable, passive equalized */
> +#define	 SFF8436_TRANS_COPPER_PAS_EQUAL		(11 << 4)
> +/* Copper cable, unequalized */
> +#define	 SFF8436_TRANS_COPPER_PAS_UNEQUAL	(10 << 4)
> +/* 1490 nm DFB */
> +#define	 SFF8436_TRANS_1490_DFB				(9 << 4)
> +/* Others */
> +#define	 SFF8436_TRANS_OTHERS				(8 << 4)
> +/* 1550 nm EML */
> +#define	 SFF8436_TRANS_1550_EML				(7 << 4)
> +/* 1310 nm EML */
> +#define	 SFF8436_TRANS_1310_EML				(6 << 4)
> +/* 1550 nm DFB */
> +#define	 SFF8436_TRANS_1550_DFB				(5 << 4)
> +/* 1310 nm DFB */
> +#define	 SFF8436_TRANS_1310_DFB				(4 << 4)
> +/* 1310 nm FP */
> +#define	 SFF8436_TRANS_1310_FP				(3 << 4)
> +/* 1550 nm VCSEL */
> +#define	 SFF8436_TRANS_1550_VCSEL			(2 << 4)
> +/* 1310 nm VCSEL */
> +#define	 SFF8436_TRANS_1310_VCSEL			(1 << 4)
> +/* 850 nm VCSEL */
> +#define	 SFF8436_TRANS_850_VCSEL			(0 << 4)
> +
> + /* Active/No wavelength control */
> +#define	 SFF8436_DEV_TECH_ACTIVE_WAVE_LEN	(1 << 3)
> +/* Cooled transmitter */
> +#define	 SFF8436_DEV_TECH_COOL_TRANS		(1 << 2)
> +/* APD/Pin Detector */
> +#define	 SFF8436_DEV_TECH_APD_DETECTOR		(1 << 1)
> +/* Transmitter tunable */
> +#define	 SFF8436_DEV_TECH_TUNABLE			(1 << 0)
> +
> +/* Vendor Name - 148-163 */
> +#define	 SFF8436_VENDOR_NAME_START_OFFSET	0x94
> +#define	 SFF8436_VENDOR_NAME_END_OFFSET		0xA3
> +
> +/* Extended Module Codes - 164 */
> +#define	 SFF8436_EXT_MOD_CODE_OFFSET	0xA4
> +#define	  SFF8436_EXT_MOD_INFINIBAND_EDR	(1 << 4)
> +#define	  SFF8436_EXT_MOD_INFINIBAND_FDR	(1 << 3)
> +#define	  SFF8436_EXT_MOD_INFINIBAND_QDR	(1 << 2)
> +#define	  SFF8436_EXT_MOD_INFINIBAND_DDR	(1 << 1)
> +#define	  SFF8436_EXT_MOD_INFINIBAND_SDR	(1 << 0)
> +
> +/* Vendor OUI - 165-167 */
> +#define	 SFF8436_VENDOR_OUI_OFFSET			0xA5
> +#define	  SFF8436_VENDOR_OUI_LEN			3
> +
> +/* Vendor OUI - 165-167 */
> +#define	 SFF8436_VENDOR_PN_START_OFFSET		0xA8
> +#define	 SFF8436_VENDOR_PN_END_OFFSET		0xB7
> +
> +/* Vendor Revision - 184-185 */
> +#define	 SFF8436_VENDOR_REV_START_OFFSET	0xB8
> +#define	 SFF8436_VENDOR_REV_END_OFFSET	0xB8
> +
> +/* Wavelength - 186-187 */
> +#define	 SFF8436_WAVELEN_HIGH_BYTE_OFFSET	0xBA
> +#define	 SFF8436_WAVELEN_LOW_BYTE_OFFSET	0xBB
> +
> +/* Wavelength  Tolerance- 188-189 */
> +#define	 SFF8436_WAVE_TOL_HIGH_BYTE_OFFSET	0xBC
> +#define	 SFF8436_WAVE_TOL_LOW_BYTE_OFFSET	0xBD
> +
> +/* Max case temp - Other than 70 C - 190 */
> +#define	 SFF8436_MAXCASE_TEMP_OFFSET	0xBE
> +
> +/* CC_BASE - 191 */
> +#define	 SFF8436_CC_BASE_OFFSET		0xBF
> +
> +/* Option Values - 192-195 */
> +#define	 SFF8436_OPTION_1_OFFSET	0xC0
> +#define	 SFF8436_OPTION_2_OFFSET	0xC1
> +/* Rx output amplitude */
> +#define	  SFF8436_O2_RX_OUTPUT_AMP		(1 << 0)
> +#define	 SFF8436_OPTION_3_OFFSET	0xC2
> +/* Rx Squelch Disable */
> +#define	  SFF8436_O3_RX_SQL_DSBL		(1 << 3)
> +/* Rx Output Disable capable */
> +#define	  SFF8436_O3_RX_OUTPUT_DSBL		(1 << 2)
> +/* Tx Squelch Disable */
> +#define	  SFF8436_O3_TX_SQL_DSBL		(1 << 1)
> +/* Tx Squelch Impl */
> +#define	  SFF8436_O3_TX_SQL_IMPL		(1 << 0)
> +#define	 SFF8436_OPTION_4_OFFSET	0xC3
> +/* Memory Page 02 present */
> +#define	  SFF8436_O4_PAGE_02_PRESENT	(1 << 7)
> +/* Memory Page 01 present */
> +#define	  SFF8436_O4_PAGE_01_PRESENT	(1 << 6)
> +/* Rate Select implemented */
> +#define	  SFF8436_O4_RATE_SELECT		(1 << 5)
> +/* Tx_DISABLE implemented */
> +#define	  SFF8436_O4_TX_DISABLE			(1 << 4)
> +/* Tx_FAULT implemented */
> +#define	  SFF8436_O4_TX_FAULT			(1 << 3)
> +/* Tx Squelch implemented */
> +#define	  SFF8436_O4_TX_SQUELCH			(1 << 2)
> +/* Tx Loss of Signal */
> +#define	  SFF8436_O4_TX_LOS			    (1 << 1)
> +
> +/* Vendor SN - 196-211 */
> +#define	 SFF8436_VENDOR_SN_START_OFFSET	0xC4
> +#define	 SFF8436_VENDOR_SN_END_OFFSET	0xD3
> +
> +/* Vendor Date - 212-219 */
> +#define	 SFF8436_DATE_YEAR_OFFSET	0xD4
> +#define	  SFF8436_DATE_YEAR_LEN			2
> +#define	 SFF8436_DATE_MONTH_OFFSET	0xD6
> +#define	  SFF8436_DATE_MONTH_LEN		2
> +#define	 SFF8436_DATE_DAY_OFFSET	0xD8
> +#define	  SFF8436_DATE_DAY_LEN			2
> +
> +/* Diagnostic Monitoring Type - 220 */
> +#define	 SFF8436_DIAG_TYPE_OFFSET	0xDC
> +#define	  SFF8436_RX_PWR_TYPE_MASK		0x8
> +#define	   SFF8436_RX_PWR_TYPE_AVG_PWR	(1 << 3)
> +#define	   SFF8436_RX_PWR_TYPE_OMA		(0 << 3)
> +
> +/* Enhanced Options - 221 */
> +#define	 SFF8436_ENH_OPTIONS_OFFSET	0xDD
> +#define	  SFF8436_RATE_SELECT_EXT_SUPPORT		(1 << 3)
> +#define	  SFF8436_RATE_SELECT_APP_TABLE_SUPPORT	(1 << 2)
> +
> +/* Check code - 223 */
> +#define	 SFF8436_CC_EXT_OFFSET		0xDF
> +#define	  SFF8436_CC_EXT_LEN			1
> +
> +
> +/*------------------------------------------------------------------------------
> + *
> + * Upper Memory Page 03h
> + * Contains module thresholds, channel thresholds and masks,
> + * and optional channel controls
> + *
> + * Offset - Page Num(3) * PageSize(0x80) + Page offset
> + */
> +
> +/* Module Thresholds (48 Bytes) 128-175 */
> +/* MSB at low address, LSB at high address */
> +#define	SFF8436_TEMP_HALRM			0x200
> +#define	SFF8436_TEMP_LALRM			0x202
> +#define	SFF8436_TEMP_HWARN			0x204
> +#define	SFF8436_TEMP_LWARN			0x206
> +
> +#define	SFF8436_VCC_HALRM			0x210
> +#define	SFF8436_VCC_LALRM			0x212
> +#define	SFF8436_VCC_HWARN			0x214
> +#define	SFF8436_VCC_LWARN			0x216
> +
> +#define	SFF8436_RX_PWR_HALRM		0x230
> +#define	SFF8436_RX_PWR_LALRM		0x232
> +#define	SFF8436_RX_PWR_HWARN		0x234
> +#define	SFF8436_RX_PWR_LWARN		0x236
> +
> +#define	SFF8436_TX_BIAS_HALRM		0x238
> +#define	SFF8436_TX_BIAS_LALRM		0x23A
> +#define	SFF8436_TX_BIAS_HWARN		0x23C
> +#define	SFF8436_TX_BIAS_LWARN		0x23E
> +
> +#endif /* QSFP_H__ */
>

-- 
Bert Kenward <[email-masked]>
Software Engineer, Solarflare