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-rw-r--r--target/linux/mvebu/patches-4.9/417-sfp-add-phylink-based-SFP-module-support.patch1477
1 files changed, 1477 insertions, 0 deletions
diff --git a/target/linux/mvebu/patches-4.9/417-sfp-add-phylink-based-SFP-module-support.patch b/target/linux/mvebu/patches-4.9/417-sfp-add-phylink-based-SFP-module-support.patch
new file mode 100644
index 0000000..4abefe6
--- /dev/null
+++ b/target/linux/mvebu/patches-4.9/417-sfp-add-phylink-based-SFP-module-support.patch
@@ -0,0 +1,1477 @@
+From: Russell King <rmk+kernel@arm.linux.org.uk>
+Date: Sat, 12 Sep 2015 18:43:39 +0100
+Subject: [PATCH] sfp: add phylink based SFP module support
+
+Add support for SFP hotpluggable modules via phylink. This supports
+both copper and optical SFP modules, which require different Serdes
+modes in order to properly negotiate the link.
+
+Optical SFP modules typically require the Serdes link to be talking
+1000base-X mode - this is the gigabit ethernet mode defined by the
+802.3 standard.
+
+Copper SFP modules typically integrate a PHY in the module to convert
+from Serdes to copper, and the PHY will be configured by the vendor
+to either present a 1000base-X Serdes link (for fixed 1000base-T) or
+a SGMII Serdes link. However, this is vendor defined, so we instead
+detect the PHY, switch the link to SGMII mode, and use traditional
+PHY based negotiation.
+
+Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
+
+- set port and port capability depending on connector type
+- move autoneg mode setting to probe function
+- set "supported" speed capabilities depending on reported ethernet
+ capabilities
+- checks for short read
+- dump eeprom base ID when checksum fails
+---
+ create mode 100644 drivers/net/phy/sfp.c
+ create mode 100644 include/linux/sfp.h
+
+--- a/drivers/net/phy/Kconfig
++++ b/drivers/net/phy/Kconfig
+@@ -256,6 +256,11 @@ endif # RTL8366_SMI
+
+ comment "MII PHY device drivers"
+
++config SFP
++ tristate "SFP cage support"
++ depends on I2C && PHYLINK
++ select MDIO_I2C
++
+ config AMD_PHY
+ tristate "AMD PHYs"
+ ---help---
+--- a/drivers/net/phy/Makefile
++++ b/drivers/net/phy/Makefile
+@@ -41,6 +41,8 @@ obj-$(CONFIG_MDIO_SUN4I) += mdio-sun4i.o
+ obj-$(CONFIG_MDIO_THUNDER) += mdio-thunder.o
+ obj-$(CONFIG_MDIO_XGENE) += mdio-xgene.o
+
++obj-$(CONFIG_SFP) += sfp.o
++
+ obj-$(CONFIG_AMD_PHY) += amd.o
+ obj-$(CONFIG_AQUANTIA_PHY) += aquantia.o
+ obj-$(CONFIG_AT803X_PHY) += at803x.o
+--- /dev/null
++++ b/drivers/net/phy/sfp.c
+@@ -0,0 +1,1071 @@
++#include <linux/delay.h>
++#include <linux/gpio.h>
++#include <linux/i2c.h>
++#include <linux/interrupt.h>
++#include <linux/jiffies.h>
++#include <linux/module.h>
++#include <linux/mutex.h>
++#include <linux/netdevice.h>
++#include <linux/of.h>
++#include <linux/of_net.h>
++#include <linux/phylink.h>
++#include <linux/platform_device.h>
++#include <linux/sfp.h>
++#include <linux/slab.h>
++#include <linux/workqueue.h>
++
++#include "mdio-i2c.h"
++#include "swphy.h"
++
++enum {
++ GPIO_MODDEF0,
++ GPIO_LOS,
++ GPIO_TX_FAULT,
++ GPIO_TX_DISABLE,
++ GPIO_RATE_SELECT,
++ GPIO_MAX,
++
++ SFP_F_PRESENT = BIT(GPIO_MODDEF0),
++ SFP_F_LOS = BIT(GPIO_LOS),
++ SFP_F_TX_FAULT = BIT(GPIO_TX_FAULT),
++ SFP_F_TX_DISABLE = BIT(GPIO_TX_DISABLE),
++ SFP_F_RATE_SELECT = BIT(GPIO_RATE_SELECT),
++
++ SFP_E_INSERT = 0,
++ SFP_E_REMOVE,
++ SFP_E_DEV_DOWN,
++ SFP_E_DEV_UP,
++ SFP_E_TX_FAULT,
++ SFP_E_TX_CLEAR,
++ SFP_E_LOS_HIGH,
++ SFP_E_LOS_LOW,
++ SFP_E_TIMEOUT,
++
++ SFP_MOD_EMPTY = 0,
++ SFP_MOD_PROBE,
++ SFP_MOD_PRESENT,
++ SFP_MOD_ERROR,
++
++ SFP_DEV_DOWN = 0,
++ SFP_DEV_UP,
++
++ SFP_S_DOWN = 0,
++ SFP_S_INIT,
++ SFP_S_WAIT_LOS,
++ SFP_S_LINK_UP,
++ SFP_S_TX_FAULT,
++ SFP_S_REINIT,
++ SFP_S_TX_DISABLE,
++};
++
++static const char *gpio_of_names[] = {
++ "moddef0",
++ "los",
++ "tx-fault",
++ "tx-disable",
++ "rate-select",
++};
++
++static const enum gpiod_flags gpio_flags[] = {
++ GPIOD_IN,
++ GPIOD_IN,
++ GPIOD_IN,
++ GPIOD_ASIS,
++ GPIOD_ASIS,
++};
++
++#define T_INIT_JIFFIES msecs_to_jiffies(300)
++#define T_RESET_US 10
++#define T_FAULT_RECOVER msecs_to_jiffies(1000)
++
++/* SFP module presence detection is poor: the three MOD DEF signals are
++ * the same length on the PCB, which means it's possible for MOD DEF 0 to
++ * connect before the I2C bus on MOD DEF 1/2.
++ *
++ * The SFP MSA specifies 300ms as t_init (the time taken for TX_FAULT to
++ * be deasserted) but makes no mention of the earliest time before we can
++ * access the I2C EEPROM. However, Avago modules require 300ms.
++ */
++#define T_PROBE_INIT msecs_to_jiffies(300)
++#define T_PROBE_RETRY msecs_to_jiffies(100)
++
++/*
++ * SFP modules appear to always have their PHY configured for bus address
++ * 0x56 (which with mdio-i2c, translates to a PHY address of 22).
++ */
++#define SFP_PHY_ADDR 22
++
++/*
++ * Give this long for the PHY to reset.
++ */
++#define T_PHY_RESET_MS 50
++
++static DEFINE_MUTEX(sfp_mutex);
++
++struct sfp {
++ struct device *dev;
++ struct i2c_adapter *i2c;
++ struct mii_bus *i2c_mii;
++ struct net_device *ndev;
++ struct phylink *phylink;
++ struct phy_device *mod_phy;
++
++ unsigned int (*get_state)(struct sfp *);
++ void (*set_state)(struct sfp *, unsigned int);
++ int (*read)(struct sfp *, bool, u8, void *, size_t);
++
++ struct gpio_desc *gpio[GPIO_MAX];
++
++ unsigned int state;
++ struct delayed_work poll;
++ struct delayed_work timeout;
++ struct mutex sm_mutex;
++ unsigned char sm_mod_state;
++ unsigned char sm_dev_state;
++ unsigned short sm_state;
++ unsigned int sm_retries;
++
++ struct sfp_eeprom_id id;
++
++ struct notifier_block netdev_nb;
++};
++
++static unsigned long poll_jiffies;
++
++static unsigned int sfp_gpio_get_state(struct sfp *sfp)
++{
++ unsigned int i, state, v;
++
++ for (i = state = 0; i < GPIO_MAX; i++) {
++ if (gpio_flags[i] != GPIOD_IN || !sfp->gpio[i])
++ continue;
++
++ v = gpiod_get_value_cansleep(sfp->gpio[i]);
++ if (v)
++ state |= BIT(i);
++ }
++
++ return state;
++}
++
++static void sfp_gpio_set_state(struct sfp *sfp, unsigned int state)
++{
++ if (state & SFP_F_PRESENT) {
++ /* If the module is present, drive the signals */
++ if (sfp->gpio[GPIO_TX_DISABLE])
++ gpiod_direction_output(sfp->gpio[GPIO_TX_DISABLE],
++ state & SFP_F_TX_DISABLE);
++ if (state & SFP_F_RATE_SELECT)
++ gpiod_direction_output(sfp->gpio[GPIO_RATE_SELECT],
++ state & SFP_F_RATE_SELECT);
++ } else {
++ /* Otherwise, let them float to the pull-ups */
++ if (sfp->gpio[GPIO_TX_DISABLE])
++ gpiod_direction_input(sfp->gpio[GPIO_TX_DISABLE]);
++ if (state & SFP_F_RATE_SELECT)
++ gpiod_direction_input(sfp->gpio[GPIO_RATE_SELECT]);
++ }
++}
++
++static int sfp__i2c_read(struct i2c_adapter *i2c, u8 bus_addr, u8 dev_addr,
++ void *buf, size_t len)
++{
++ struct i2c_msg msgs[2];
++ int ret;
++
++ msgs[0].addr = bus_addr;
++ msgs[0].flags = 0;
++ msgs[0].len = 1;
++ msgs[0].buf = &dev_addr;
++ msgs[1].addr = bus_addr;
++ msgs[1].flags = I2C_M_RD;
++ msgs[1].len = len;
++ msgs[1].buf = buf;
++
++ ret = i2c_transfer(i2c, msgs, ARRAY_SIZE(msgs));
++ if (ret < 0)
++ return ret;
++
++ return ret == ARRAY_SIZE(msgs) ? len : 0;
++}
++
++static int sfp_i2c_read(struct sfp *sfp, bool a2, u8 addr, void *buf,
++ size_t len)
++{
++ return sfp__i2c_read(sfp->i2c, a2 ? 0x51 : 0x50, addr, buf, len);
++}
++
++static int sfp_i2c_configure(struct sfp *sfp, struct i2c_adapter *i2c)
++{
++ struct mii_bus *i2c_mii;
++ int ret;
++
++ if (!i2c_check_functionality(i2c, I2C_FUNC_I2C))
++ return -EINVAL;
++
++ sfp->i2c = i2c;
++ sfp->read = sfp_i2c_read;
++
++ i2c_mii = mdio_i2c_alloc(sfp->dev, i2c);
++ if (IS_ERR(i2c_mii))
++ return PTR_ERR(i2c_mii);
++
++ i2c_mii->name = "SFP I2C Bus";
++ i2c_mii->phy_mask = ~0;
++
++ ret = mdiobus_register(i2c_mii);
++ if (ret < 0) {
++ mdiobus_free(i2c_mii);
++ return ret;
++ }
++
++ sfp->i2c_mii = i2c_mii;
++
++ return 0;
++}
++
++
++/* Interface */
++static unsigned int sfp_get_state(struct sfp *sfp)
++{
++ return sfp->get_state(sfp);
++}
++
++static void sfp_set_state(struct sfp *sfp, unsigned int state)
++{
++ sfp->set_state(sfp, state);
++}
++
++static int sfp_read(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len)
++{
++ return sfp->read(sfp, a2, addr, buf, len);
++}
++
++static unsigned int sfp_check(void *buf, size_t len)
++{
++ u8 *p, check;
++
++ for (p = buf, check = 0; len; p++, len--)
++ check += *p;
++
++ return check;
++}
++
++/* Helpers */
++static void sfp_module_tx_disable(struct sfp *sfp)
++{
++ dev_dbg(sfp->dev, "tx disable %u -> %u\n",
++ sfp->state & SFP_F_TX_DISABLE ? 1 : 0, 1);
++ sfp->state |= SFP_F_TX_DISABLE;
++ sfp_set_state(sfp, sfp->state);
++}
++
++static void sfp_module_tx_enable(struct sfp *sfp)
++{
++ dev_dbg(sfp->dev, "tx disable %u -> %u\n",
++ sfp->state & SFP_F_TX_DISABLE ? 1 : 0, 0);
++ sfp->state &= ~SFP_F_TX_DISABLE;
++ sfp_set_state(sfp, sfp->state);
++}
++
++static void sfp_module_tx_fault_reset(struct sfp *sfp)
++{
++ unsigned int state = sfp->state;
++
++ if (state & SFP_F_TX_DISABLE)
++ return;
++
++ sfp_set_state(sfp, state | SFP_F_TX_DISABLE);
++
++ udelay(T_RESET_US);
++
++ sfp_set_state(sfp, state);
++}
++
++/* SFP state machine */
++static void sfp_sm_set_timer(struct sfp *sfp, unsigned int timeout)
++{
++ if (timeout)
++ mod_delayed_work(system_power_efficient_wq, &sfp->timeout,
++ timeout);
++ else
++ cancel_delayed_work(&sfp->timeout);
++}
++
++static void sfp_sm_next(struct sfp *sfp, unsigned int state,
++ unsigned int timeout)
++{
++ sfp->sm_state = state;
++ sfp_sm_set_timer(sfp, timeout);
++}
++
++static void sfp_sm_ins_next(struct sfp *sfp, unsigned int state, unsigned int timeout)
++{
++ sfp->sm_mod_state = state;
++ sfp_sm_set_timer(sfp, timeout);
++}
++
++static void sfp_sm_phy_detach(struct sfp *sfp)
++{
++ phy_stop(sfp->mod_phy);
++ if (sfp->phylink)
++ phylink_disconnect_phy(sfp->phylink);
++ phy_device_remove(sfp->mod_phy);
++ phy_device_free(sfp->mod_phy);
++ sfp->mod_phy = NULL;
++}
++
++static void sfp_sm_probe_phy(struct sfp *sfp)
++{
++ struct phy_device *phy;
++ int err;
++
++ msleep(T_PHY_RESET_MS);
++
++ phy = mdiobus_scan(sfp->i2c_mii, SFP_PHY_ADDR);
++ if (IS_ERR(phy)) {
++ dev_err(sfp->dev, "mdiobus scan returned %ld\n", PTR_ERR(phy));
++ return;
++ }
++ if (!phy) {
++ dev_info(sfp->dev, "no PHY detected\n");
++ return;
++ }
++
++ if (sfp->phylink) {
++ err = phylink_connect_phy(sfp->phylink, phy);
++ if (err) {
++ phy_device_remove(phy);
++ phy_device_free(phy);
++ dev_err(sfp->dev, "phylink_connect_phy failed: %d\n",
++ err);
++ return;
++ }
++ }
++
++ sfp->mod_phy = phy;
++ phy_start(phy);
++}
++
++static void sfp_sm_link_up(struct sfp *sfp)
++{
++ if (sfp->phylink)
++ phylink_enable(sfp->phylink);
++
++ sfp_sm_next(sfp, SFP_S_LINK_UP, 0);
++}
++
++static void sfp_sm_link_down(struct sfp *sfp)
++{
++ if (sfp->phylink)
++ phylink_disable(sfp->phylink);
++}
++
++static void sfp_sm_link_check_los(struct sfp *sfp)
++{
++ unsigned int los = sfp->state & SFP_F_LOS;
++
++ /* FIXME: what if neither SFP_OPTIONS_LOS_INVERTED nor
++ * SFP_OPTIONS_LOS_NORMAL are set? For now, we assume
++ * the same as SFP_OPTIONS_LOS_NORMAL set.
++ */
++ if (sfp->id.ext.options & SFP_OPTIONS_LOS_INVERTED)
++ los ^= SFP_F_LOS;
++
++ if (los)
++ sfp_sm_next(sfp, SFP_S_WAIT_LOS, 0);
++ else
++ sfp_sm_link_up(sfp);
++}
++
++static void sfp_sm_fault(struct sfp *sfp, bool warn)
++{
++ if (sfp->sm_retries && !--sfp->sm_retries) {
++ dev_err(sfp->dev, "module persistently indicates fault, disabling\n");
++ sfp_sm_next(sfp, SFP_S_TX_DISABLE, 0);
++ } else {
++ if (warn)
++ dev_err(sfp->dev, "module transmit fault indicated\n");
++
++ sfp_sm_next(sfp, SFP_S_TX_FAULT, T_FAULT_RECOVER);
++ }
++}
++
++static void sfp_sm_mod_init(struct sfp *sfp)
++{
++ sfp_module_tx_enable(sfp);
++
++ /* Wait t_init before indicating that the link is up, provided the
++ * current state indicates no TX_FAULT. If TX_FAULT clears before
++ * this time, that's fine too.
++ */
++ sfp_sm_next(sfp, SFP_S_INIT, T_INIT_JIFFIES);
++ sfp->sm_retries = 5;
++
++ if (sfp->phylink) {
++ /* Setting the serdes link mode is guesswork: there's no
++ * field in the EEPROM which indicates what mode should
++ * be used.
++ *
++ * If it's a gigabit-only fiber module, it probably does
++ * not have a PHY, so switch to 802.3z negotiation mode.
++ * Otherwise, switch to SGMII mode (which is required to
++ * support non-gigabit speeds) and probe for a PHY.
++ */
++ if (sfp->id.base.e1000_base_t ||
++ sfp->id.base.e100_base_lx ||
++ sfp->id.base.e100_base_fx)
++ sfp_sm_probe_phy(sfp);
++ }
++}
++
++static int sfp_sm_mod_probe(struct sfp *sfp)
++{
++ /* SFP module inserted - read I2C data */
++ struct sfp_eeprom_id id;
++ char vendor[17];
++ char part[17];
++ char sn[17];
++ char date[9];
++ char rev[5];
++ u8 check;
++ int err;
++
++ err = sfp_read(sfp, false, 0, &id, sizeof(id));
++ if (err < 0) {
++ dev_err(sfp->dev, "failed to read EEPROM: %d\n", err);
++ return -EAGAIN;
++ }
++
++ if (err != sizeof(id)) {
++ dev_err(sfp->dev, "EEPROM short read: %d\n", err);
++ return -EAGAIN;
++ }
++
++ /* Validate the checksum over the base structure */
++ check = sfp_check(&id.base, sizeof(id.base) - 1);
++ if (check != id.base.cc_base) {
++ dev_err(sfp->dev,
++ "EEPROM base structure checksum failure: 0x%02x\n",
++ check);
++ print_hex_dump(KERN_ERR, "sfp EE: ", DUMP_PREFIX_OFFSET,
++ 16, 1, &id, sizeof(id.base) - 1, true);
++ return -EINVAL;
++ }
++
++ check = sfp_check(&id.ext, sizeof(id.ext) - 1);
++ if (check != id.ext.cc_ext) {
++ dev_err(sfp->dev,
++ "EEPROM extended structure checksum failure: 0x%02x\n",
++ check);
++ memset(&id.ext, 0, sizeof(id.ext));
++ }
++
++ sfp->id = id;
++
++ memcpy(vendor, sfp->id.base.vendor_name, 16);
++ vendor[16] = '\0';
++ memcpy(part, sfp->id.base.vendor_pn, 16);
++ part[16] = '\0';
++ memcpy(rev, sfp->id.base.vendor_rev, 4);
++ rev[4] = '\0';
++ memcpy(sn, sfp->id.ext.vendor_sn, 16);
++ sn[16] = '\0';
++ memcpy(date, sfp->id.ext.datecode, 8);
++ date[8] = '\0';
++
++ dev_info(sfp->dev, "module %s %s rev %s sn %s dc %s\n", vendor, part, rev, sn, date);
++
++ /* We only support SFP modules, not the legacy GBIC modules. */
++ if (sfp->id.base.phys_id != SFP_PHYS_ID_SFP ||
++ sfp->id.base.phys_ext_id != SFP_PHYS_EXT_ID_SFP) {
++ dev_err(sfp->dev, "module is not SFP - phys id 0x%02x 0x%02x\n",
++ sfp->id.base.phys_id, sfp->id.base.phys_ext_id);
++ return -EINVAL;
++ }
++
++ /*
++ * What isn't clear from the SFP documentation is whether this
++ * specifies the encoding expected on the TD/RD lines, or whether
++ * the TD/RD lines are always 8b10b encoded, but the transceiver
++ * converts. Eg, think of a copper SFP supporting 1G/100M/10M
++ * ethernet: this requires 8b10b encoding for 1G, 4b5b for 100M,
++ * and manchester for 10M.
++ */
++ /* 1Gbit ethernet requires 8b10b encoding */
++ if (sfp->id.base.encoding != SFP_ENCODING_8B10B) {
++ dev_err(sfp->dev, "module does not support 8B10B encoding\n");
++ return -EINVAL;
++ }
++
++ if (sfp->phylink) {
++ __ETHTOOL_DECLARE_LINK_MODE_MASK(support) = { 0, };
++ int mode;
++ u8 port;
++
++ phylink_set(support, Autoneg);
++ phylink_set(support, Pause);
++ phylink_set(support, Asym_Pause);
++
++ /* Set ethtool support from the compliance fields. */
++ if (sfp->id.base.e10g_base_sr)
++ phylink_set(support, 10000baseSR_Full);
++ if (sfp->id.base.e10g_base_lr)
++ phylink_set(support, 10000baseLR_Full);
++ if (sfp->id.base.e10g_base_lrm)
++ phylink_set(support, 10000baseLRM_Full);
++ if (sfp->id.base.e10g_base_er)
++ phylink_set(support, 10000baseER_Full);
++ if (sfp->id.base.e1000_base_sx ||
++ sfp->id.base.e1000_base_lx ||
++ sfp->id.base.e1000_base_cx)
++ phylink_set(support, 1000baseX_Full);
++ if (sfp->id.base.e1000_base_t) {
++ phylink_set(support, 1000baseT_Half);
++ phylink_set(support, 1000baseT_Full);
++ }
++
++ /* port is the physical connector, set this from the
++ * connector field.
++ */
++ switch (sfp->id.base.connector) {
++ case SFP_CONNECTOR_SC:
++ case SFP_CONNECTOR_FIBERJACK:
++ case SFP_CONNECTOR_LC:
++ case SFP_CONNECTOR_MT_RJ:
++ case SFP_CONNECTOR_MU:
++ case SFP_CONNECTOR_OPTICAL_PIGTAIL:
++ phylink_set(support, FIBRE);
++ port = PORT_FIBRE;
++ break;
++
++ case SFP_CONNECTOR_RJ45:
++ phylink_set(support, TP);
++ port = PORT_TP;
++ break;
++
++ case SFP_CONNECTOR_UNSPEC:
++ if (sfp->id.base.e1000_base_t) {
++ phylink_set(support, TP);
++ port = PORT_TP;
++ break;
++ }
++ /* fallthrough */
++ case SFP_CONNECTOR_SG: /* guess */
++ case SFP_CONNECTOR_MPO_1X12:
++ case SFP_CONNECTOR_MPO_2X16:
++ case SFP_CONNECTOR_HSSDC_II:
++ case SFP_CONNECTOR_COPPER_PIGTAIL:
++ case SFP_CONNECTOR_NOSEPARATE:
++ case SFP_CONNECTOR_MXC_2X16:
++ default:
++ /* a guess at the supported link modes */
++ dev_warn(sfp->dev, "Guessing link modes, please report...\n");
++ phylink_set(support, 1000baseT_Half);
++ phylink_set(support, 1000baseT_Full);
++ port = PORT_OTHER;
++ break;
++ }
++
++ /* Setting the serdes link mode is guesswork: there's no
++ * field in the EEPROM which indicates what mode should
++ * be used.
++ *
++ * If it's a gigabit-only fiber module, it probably does
++ * not have a PHY, so switch to 802.3z negotiation mode.
++ * Otherwise, switch to SGMII mode (which is required to
++ * support non-gigabit speeds) and probe for a PHY.
++ */
++ if (!sfp->id.base.e1000_base_t &&
++ !sfp->id.base.e100_base_lx &&
++ !sfp->id.base.e100_base_fx) {
++ mode = MLO_AN_8023Z;
++ } else {
++ mode = MLO_AN_SGMII;
++ }
++
++ phylink_set_link(sfp->phylink, mode, port, support);
++ }
++
++ return 0;
++}
++
++static void sfp_sm_mod_remove(struct sfp *sfp)
++{
++ if (sfp->mod_phy)
++ sfp_sm_phy_detach(sfp);
++
++ sfp_module_tx_disable(sfp);
++
++ memset(&sfp->id, 0, sizeof(sfp->id));
++
++ dev_info(sfp->dev, "module removed\n");
++}
++
++static void sfp_sm_event(struct sfp *sfp, unsigned int event)
++{
++ mutex_lock(&sfp->sm_mutex);
++
++ dev_dbg(sfp->dev, "SM: enter %u:%u:%u event %u\n",
++ sfp->sm_mod_state, sfp->sm_dev_state, sfp->sm_state, event);
++
++ /* This state machine tracks the insert/remove state of
++ * the module, and handles probing the on-board EEPROM.
++ */
++ switch (sfp->sm_mod_state) {
++ default:
++ if (event == SFP_E_INSERT) {
++ sfp_module_tx_disable(sfp);
++ sfp_sm_ins_next(sfp, SFP_MOD_PROBE, T_PROBE_INIT);
++ }
++ break;
++
++ case SFP_MOD_PROBE:
++ if (event == SFP_E_REMOVE) {
++ sfp_sm_ins_next(sfp, SFP_MOD_EMPTY, 0);
++ } else if (event == SFP_E_TIMEOUT) {
++ int err = sfp_sm_mod_probe(sfp);
++
++ if (err == 0)
++ sfp_sm_ins_next(sfp, SFP_MOD_PRESENT, 0);
++ else if (err == -EAGAIN)
++ sfp_sm_set_timer(sfp, T_PROBE_RETRY);
++ else
++ sfp_sm_ins_next(sfp, SFP_MOD_ERROR, 0);
++ }
++ break;
++
++ case SFP_MOD_PRESENT:
++ case SFP_MOD_ERROR:
++ if (event == SFP_E_REMOVE) {
++ sfp_sm_mod_remove(sfp);
++ sfp_sm_ins_next(sfp, SFP_MOD_EMPTY, 0);
++ }
++ break;
++ }
++
++ /* This state machine tracks the netdev up/down state */
++ switch (sfp->sm_dev_state) {
++ default:
++ if (event == SFP_E_DEV_UP)
++ sfp->sm_dev_state = SFP_DEV_UP;
++ break;
++
++ case SFP_DEV_UP:
++ if (event == SFP_E_DEV_DOWN) {
++ /* If the module has a PHY, avoid raising TX disable
++ * as this resets the PHY. Otherwise, raise it to
++ * turn the laser off.
++ */
++ if (!sfp->mod_phy)
++ sfp_module_tx_disable(sfp);
++ sfp->sm_dev_state = SFP_DEV_DOWN;
++ }
++ break;
++ }
++
++ /* Some events are global */
++ if (sfp->sm_state != SFP_S_DOWN &&
++ (sfp->sm_mod_state != SFP_MOD_PRESENT ||
++ sfp->sm_dev_state != SFP_DEV_UP)) {
++ if (sfp->sm_state == SFP_S_LINK_UP &&
++ sfp->sm_dev_state == SFP_DEV_UP)
++ sfp_sm_link_down(sfp);
++ if (sfp->mod_phy)
++ sfp_sm_phy_detach(sfp);
++ sfp_sm_next(sfp, SFP_S_DOWN, 0);
++ mutex_unlock(&sfp->sm_mutex);
++ return;
++ }
++
++ /* The main state machine */
++ switch (sfp->sm_state) {
++ case SFP_S_DOWN:
++ if (sfp->sm_mod_state == SFP_MOD_PRESENT &&
++ sfp->sm_dev_state == SFP_DEV_UP)
++ sfp_sm_mod_init(sfp);
++ break;
++
++ case SFP_S_INIT:
++ if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT)
++ sfp_sm_fault(sfp, true);
++ else if (event == SFP_E_TIMEOUT || event == SFP_E_TX_CLEAR)
++ sfp_sm_link_check_los(sfp);
++ break;
++
++ case SFP_S_WAIT_LOS:
++ if (event == SFP_E_TX_FAULT)
++ sfp_sm_fault(sfp, true);
++ else if (event ==
++ (sfp->id.ext.options & SFP_OPTIONS_LOS_INVERTED ?
++ SFP_E_LOS_HIGH : SFP_E_LOS_LOW))
++ sfp_sm_link_up(sfp);
++ break;
++
++ case SFP_S_LINK_UP:
++ if (event == SFP_E_TX_FAULT) {
++ sfp_sm_link_down(sfp);
++ sfp_sm_fault(sfp, true);
++ } else if (event ==
++ (sfp->id.ext.options & SFP_OPTIONS_LOS_INVERTED ?
++ SFP_E_LOS_LOW : SFP_E_LOS_HIGH)) {
++ sfp_sm_link_down(sfp);
++ sfp_sm_next(sfp, SFP_S_WAIT_LOS, 0);
++ }
++ break;
++
++ case SFP_S_TX_FAULT:
++ if (event == SFP_E_TIMEOUT) {
++ sfp_module_tx_fault_reset(sfp);
++ sfp_sm_next(sfp, SFP_S_REINIT, T_INIT_JIFFIES);
++ }
++ break;
++
++ case SFP_S_REINIT:
++ if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) {
++ sfp_sm_fault(sfp, false);
++ } else if (event == SFP_E_TIMEOUT || event == SFP_E_TX_CLEAR) {
++ dev_info(sfp->dev, "module transmit fault recovered\n");
++ sfp_sm_link_check_los(sfp);
++ }
++ break;
++
++ case SFP_S_TX_DISABLE:
++ break;
++ }
++
++ dev_dbg(sfp->dev, "SM: exit %u:%u:%u\n",
++ sfp->sm_mod_state, sfp->sm_dev_state, sfp->sm_state);
++
++ mutex_unlock(&sfp->sm_mutex);
++}
++
++#if 0
++static int sfp_phy_module_info(struct phy_device *phy,
++ struct ethtool_modinfo *modinfo)
++{
++ struct sfp *sfp = phy->priv;
++
++ /* locking... and check module is present */
++
++ if (sfp->id.ext.sff8472_compliance) {
++ modinfo->type = ETH_MODULE_SFF_8472;
++ modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
++ } else {
++ modinfo->type = ETH_MODULE_SFF_8079;
++ modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
++ }
++ return 0;
++}
++
++static int sfp_phy_module_eeprom(struct phy_device *phy,
++ struct ethtool_eeprom *ee, u8 *data)
++{
++ struct sfp *sfp = phy->priv;
++ unsigned int first, last, len;
++ int ret;
++
++ if (ee->len == 0)
++ return -EINVAL;
++
++ first = ee->offset;
++ last = ee->offset + ee->len;
++ if (first < ETH_MODULE_SFF_8079_LEN) {
++ len = last;
++ if (len > ETH_MODULE_SFF_8079_LEN)
++ len = ETH_MODULE_SFF_8079_LEN;
++ len -= first;
++
++ ret = sfp->read(sfp, false, first, data, len);
++ if (ret < 0)
++ return ret;
++
++ first += len;
++ data += len;
++ }
++ if (first >= ETH_MODULE_SFF_8079_LEN && last > first) {
++ len = last - first;
++
++ ret = sfp->read(sfp, true, first, data, len);
++ if (ret < 0)
++ return ret;
++ }
++ return 0;
++}
++#endif
++
++static void sfp_timeout(struct work_struct *work)
++{
++ struct sfp *sfp = container_of(work, struct sfp, timeout.work);
++
++ sfp_sm_event(sfp, SFP_E_TIMEOUT);
++}
++
++static void sfp_check_state(struct sfp *sfp)
++{
++ unsigned int state, i, changed;
++
++ state = sfp_get_state(sfp);
++ changed = state ^ sfp->state;
++ changed &= SFP_F_PRESENT | SFP_F_LOS | SFP_F_TX_FAULT;
++
++ for (i = 0; i < GPIO_MAX; i++)
++ if (changed & BIT(i))
++ dev_dbg(sfp->dev, "%s %u -> %u\n", gpio_of_names[i],
++ !!(sfp->state & BIT(i)), !!(state & BIT(i)));
++
++ state |= sfp->state & (SFP_F_TX_DISABLE | SFP_F_RATE_SELECT);
++ sfp->state = state;
++
++ if (changed & SFP_F_PRESENT)
++ sfp_sm_event(sfp, state & SFP_F_PRESENT ?
++ SFP_E_INSERT : SFP_E_REMOVE);
++
++ if (changed & SFP_F_TX_FAULT)
++ sfp_sm_event(sfp, state & SFP_F_TX_FAULT ?
++ SFP_E_TX_FAULT : SFP_E_TX_CLEAR);
++
++ if (changed & SFP_F_LOS)
++ sfp_sm_event(sfp, state & SFP_F_LOS ?
++ SFP_E_LOS_HIGH : SFP_E_LOS_LOW);
++}
++
++static irqreturn_t sfp_irq(int irq, void *data)
++{
++ struct sfp *sfp = data;
++
++ sfp_check_state(sfp);
++
++ return IRQ_HANDLED;
++}
++
++static void sfp_poll(struct work_struct *work)
++{
++ struct sfp *sfp = container_of(work, struct sfp, poll.work);
++
++ sfp_check_state(sfp);
++ mod_delayed_work(system_wq, &sfp->poll, poll_jiffies);
++}
++
++static int sfp_netdev_notify(struct notifier_block *nb, unsigned long act, void *data)
++{
++ struct sfp *sfp = container_of(nb, struct sfp, netdev_nb);
++ struct netdev_notifier_info *info = data;
++ struct net_device *ndev = info->dev;
++
++ if (!sfp->ndev || ndev != sfp->ndev)
++ return NOTIFY_DONE;
++
++ switch (act) {
++ case NETDEV_UP:
++ sfp_sm_event(sfp, SFP_E_DEV_UP);
++ break;
++
++ case NETDEV_GOING_DOWN:
++ sfp_sm_event(sfp, SFP_E_DEV_DOWN);
++ break;
++
++ case NETDEV_UNREGISTER:
++ if (sfp->mod_phy && sfp->phylink)
++ phylink_disconnect_phy(sfp->phylink);
++ sfp->phylink = NULL;
++ dev_put(sfp->ndev);
++ sfp->ndev = NULL;
++ break;
++ }
++ return NOTIFY_OK;
++}
++
++static struct sfp *sfp_alloc(struct device *dev)
++{
++ struct sfp *sfp;
++
++ sfp = kzalloc(sizeof(*sfp), GFP_KERNEL);
++ if (!sfp)
++ return ERR_PTR(-ENOMEM);
++
++ sfp->dev = dev;
++
++ mutex_init(&sfp->sm_mutex);
++ INIT_DELAYED_WORK(&sfp->poll, sfp_poll);
++ INIT_DELAYED_WORK(&sfp->timeout, sfp_timeout);
++
++ sfp->netdev_nb.notifier_call = sfp_netdev_notify;
++
++ return sfp;
++}
++
++static void sfp_destroy(struct sfp *sfp)
++{
++ cancel_delayed_work_sync(&sfp->poll);
++ cancel_delayed_work_sync(&sfp->timeout);
++ if (sfp->i2c_mii) {
++ mdiobus_unregister(sfp->i2c_mii);
++ mdiobus_free(sfp->i2c_mii);
++ }
++ if (sfp->i2c)
++ i2c_put_adapter(sfp->i2c);
++ of_node_put(sfp->dev->of_node);
++ kfree(sfp);
++}
++
++static void sfp_cleanup(void *data)
++{
++ struct sfp *sfp = data;
++
++ sfp_destroy(sfp);
++}
++
++static int sfp_probe(struct platform_device *pdev)
++{
++ struct sfp *sfp;
++ bool poll = false;
++ int irq, err, i;
++
++ sfp = sfp_alloc(&pdev->dev);
++ if (IS_ERR(sfp))
++ return PTR_ERR(sfp);
++
++ platform_set_drvdata(pdev, sfp);
++
++ err = devm_add_action(sfp->dev, sfp_cleanup, sfp);
++ if (err < 0)
++ return err;
++
++ if (pdev->dev.of_node) {
++ struct device_node *node = pdev->dev.of_node;
++ struct device_node *np;
++
++ np = of_parse_phandle(node, "i2c-bus", 0);
++ if (np) {
++ struct i2c_adapter *i2c;
++
++ i2c = of_find_i2c_adapter_by_node(np);
++ of_node_put(np);
++ if (!i2c)
++ return -EPROBE_DEFER;
++
++ err = sfp_i2c_configure(sfp, i2c);
++ if (err < 0) {
++ i2c_put_adapter(i2c);
++ return err;
++ }
++ }
++
++ for (i = 0; i < GPIO_MAX; i++) {
++ sfp->gpio[i] = devm_gpiod_get_optional(sfp->dev,
++ gpio_of_names[i], gpio_flags[i]);
++ if (IS_ERR(sfp->gpio[i]))
++ return PTR_ERR(sfp->gpio[i]);
++ }
++
++ sfp->get_state = sfp_gpio_get_state;
++ sfp->set_state = sfp_gpio_set_state;
++
++ np = of_parse_phandle(node, "sfp,ethernet", 0);
++ if (!np) {
++ dev_err(sfp->dev, "missing sfp,ethernet property\n");
++ return -EINVAL;
++ }
++
++ sfp->ndev = of_find_net_device_by_node(np);
++ if (!sfp->ndev) {
++ dev_err(sfp->dev, "ethernet device not found\n");
++ return -EPROBE_DEFER;
++ }
++
++ dev_hold(sfp->ndev);
++ put_device(&sfp->ndev->dev);
++
++ sfp->phylink = phylink_lookup_by_netdev(sfp->ndev);
++ if (!sfp->phylink) {
++ dev_err(sfp->dev, "phylink for %s not found\n",
++ netdev_name(sfp->ndev));
++ return -EPROBE_DEFER;
++ }
++
++ phylink_disable(sfp->phylink);
++ }
++
++ sfp->state = sfp_get_state(sfp);
++ if (sfp->gpio[GPIO_TX_DISABLE] &&
++ gpiod_get_value_cansleep(sfp->gpio[GPIO_TX_DISABLE]))
++ sfp->state |= SFP_F_TX_DISABLE;
++ if (sfp->gpio[GPIO_RATE_SELECT] &&
++ gpiod_get_value_cansleep(sfp->gpio[GPIO_RATE_SELECT]))
++ sfp->state |= SFP_F_RATE_SELECT;
++ sfp_set_state(sfp, sfp->state);
++ sfp_module_tx_disable(sfp);
++ if (sfp->state & SFP_F_PRESENT)
++ sfp_sm_event(sfp, SFP_E_INSERT);
++
++ for (i = 0; i < GPIO_MAX; i++) {
++ if (gpio_flags[i] != GPIOD_IN || !sfp->gpio[i])
++ continue;
++
++ irq = gpiod_to_irq(sfp->gpio[i]);
++ if (!irq) {
++ poll = true;
++ continue;
++ }
++
++ err = devm_request_threaded_irq(sfp->dev, irq, NULL, sfp_irq,
++ IRQF_ONESHOT |
++ IRQF_TRIGGER_RISING |
++ IRQF_TRIGGER_FALLING,
++ dev_name(sfp->dev), sfp);
++ if (err)
++ poll = true;
++ }
++
++ if (poll)
++ mod_delayed_work(system_wq, &sfp->poll, poll_jiffies);
++
++ register_netdevice_notifier(&sfp->netdev_nb);
++
++ return 0;
++}
++
++static int sfp_remove(struct platform_device *pdev)
++{
++ struct sfp *sfp = platform_get_drvdata(pdev);
++
++ unregister_netdevice_notifier(&sfp->netdev_nb);
++ if (sfp->ndev)
++ dev_put(sfp->ndev);
++
++ return 0;
++}
++
++static const struct of_device_id sfp_of_match[] = {
++ { .compatible = "sff,sfp", },
++ { },
++};
++MODULE_DEVICE_TABLE(of, sfp_of_match);
++
++static struct platform_driver sfp_driver = {
++ .probe = sfp_probe,
++ .remove = sfp_remove,
++ .driver = {
++ .name = "sfp",
++ .of_match_table = sfp_of_match,
++ },
++};
++
++static int sfp_init(void)
++{
++ poll_jiffies = msecs_to_jiffies(100);
++
++ return platform_driver_register(&sfp_driver);
++}
++module_init(sfp_init);
++
++static void sfp_exit(void)
++{
++ platform_driver_unregister(&sfp_driver);
++}
++module_exit(sfp_exit);
++
++MODULE_ALIAS("platform:sfp");
++MODULE_AUTHOR("Russell King");
++MODULE_LICENSE("GPL v2");
+--- /dev/null
++++ b/include/linux/sfp.h
+@@ -0,0 +1,344 @@
++#ifndef LINUX_SFP_H
++#define LINUX_SFP_H
++
++struct __packed sfp_eeprom_base {
++ u8 phys_id;
++ u8 phys_ext_id;
++ u8 connector;
++#if defined __BIG_ENDIAN_BITFIELD
++ u8 e10g_base_er:1;
++ u8 e10g_base_lrm:1;
++ u8 e10g_base_lr:1;
++ u8 e10g_base_sr:1;
++ u8 if_1x_sx:1;
++ u8 if_1x_lx:1;
++ u8 if_1x_copper_active:1;
++ u8 if_1x_copper_passive:1;
++
++ u8 escon_mmf_1310_led:1;
++ u8 escon_smf_1310_laser:1;
++ u8 sonet_oc192_short_reach:1;
++ u8 sonet_reach_bit1:1;
++ u8 sonet_reach_bit2:1;
++ u8 sonet_oc48_long_reach:1;
++ u8 sonet_oc48_intermediate_reach:1;
++ u8 sonet_oc48_short_reach:1;
++
++ u8 unallocated_5_7:1;
++ u8 sonet_oc12_smf_long_reach:1;
++ u8 sonet_oc12_smf_intermediate_reach:1;
++ u8 sonet_oc12_short_reach:1;
++ u8 unallocated_5_3:1;
++ u8 sonet_oc3_smf_long_reach:1;
++ u8 sonet_oc3_smf_intermediate_reach:1;
++ u8 sonet_oc3_short_reach:1;
++
++ u8 e_base_px:1;
++ u8 e_base_bx10:1;
++ u8 e100_base_fx:1;
++ u8 e100_base_lx:1;
++ u8 e1000_base_t:1;
++ u8 e1000_base_cx:1;
++ u8 e1000_base_lx:1;
++ u8 e1000_base_sx:1;
++
++ u8 fc_ll_v:1;
++ u8 fc_ll_s:1;
++ u8 fc_ll_i:1;
++ u8 fc_ll_l:1;
++ u8 fc_ll_m:1;
++ u8 fc_tech_sa:1;
++ u8 fc_tech_lc:1;
++ u8 fc_tech_electrical_inter_enclosure:1;
++
++ u8 fc_tech_electrical_intra_enclosure:1;
++ u8 fc_tech_sn:1;
++ u8 fc_tech_sl:1;
++ u8 fc_tech_ll:1;
++ u8 sfp_ct_active:1;
++ u8 sfp_ct_passive:1;
++ u8 unallocated_8_1:1;
++ u8 unallocated_8_0:1;
++
++ u8 fc_media_tw:1;
++ u8 fc_media_tp:1;
++ u8 fc_media_mi:1;
++ u8 fc_media_tv:1;
++ u8 fc_media_m6:1;
++ u8 fc_media_m5:1;
++ u8 unallocated_9_1:1;
++ u8 fc_media_sm:1;
++
++ u8 fc_speed_1200:1;
++ u8 fc_speed_800:1;
++ u8 fc_speed_1600:1;
++ u8 fc_speed_400:1;
++ u8 fc_speed_3200:1;
++ u8 fc_speed_200:1;
++ u8 unallocated_10_1:1;
++ u8 fc_speed_100:1;
++#elif defined __LITTLE_ENDIAN_BITFIELD
++ u8 if_1x_copper_passive:1;
++ u8 if_1x_copper_active:1;
++ u8 if_1x_lx:1;
++ u8 if_1x_sx:1;
++ u8 e10g_base_sr:1;
++ u8 e10g_base_lr:1;
++ u8 e10g_base_lrm:1;
++ u8 e10g_base_er:1;
++
++ u8 sonet_oc3_short_reach:1;
++ u8 sonet_oc3_smf_intermediate_reach:1;
++ u8 sonet_oc3_smf_long_reach:1;
++ u8 unallocated_5_3:1;
++ u8 sonet_oc12_short_reach:1;
++ u8 sonet_oc12_smf_intermediate_reach:1;
++ u8 sonet_oc12_smf_long_reach:1;
++ u8 unallocated_5_7:1;
++
++ u8 sonet_oc48_short_reach:1;
++ u8 sonet_oc48_intermediate_reach:1;
++ u8 sonet_oc48_long_reach:1;
++ u8 sonet_reach_bit2:1;
++ u8 sonet_reach_bit1:1;
++ u8 sonet_oc192_short_reach:1;
++ u8 escon_smf_1310_laser:1;
++ u8 escon_mmf_1310_led:1;
++
++ u8 e1000_base_sx:1;
++ u8 e1000_base_lx:1;
++ u8 e1000_base_cx:1;
++ u8 e1000_base_t:1;
++ u8 e100_base_lx:1;
++ u8 e100_base_fx:1;
++ u8 e_base_bx10:1;
++ u8 e_base_px:1;
++
++ u8 fc_tech_electrical_inter_enclosure:1;
++ u8 fc_tech_lc:1;
++ u8 fc_tech_sa:1;
++ u8 fc_ll_m:1;
++ u8 fc_ll_l:1;
++ u8 fc_ll_i:1;
++ u8 fc_ll_s:1;
++ u8 fc_ll_v:1;
++
++ u8 unallocated_8_0:1;
++ u8 unallocated_8_1:1;
++ u8 sfp_ct_passive:1;
++ u8 sfp_ct_active:1;
++ u8 fc_tech_ll:1;
++ u8 fc_tech_sl:1;
++ u8 fc_tech_sn:1;
++ u8 fc_tech_electrical_intra_enclosure:1;
++
++ u8 fc_media_sm:1;
++ u8 unallocated_9_1:1;
++ u8 fc_media_m5:1;
++ u8 fc_media_m6:1;
++ u8 fc_media_tv:1;
++ u8 fc_media_mi:1;
++ u8 fc_media_tp:1;
++ u8 fc_media_tw:1;
++
++ u8 fc_speed_100:1;
++ u8 unallocated_10_1:1;
++ u8 fc_speed_200:1;
++ u8 fc_speed_3200:1;
++ u8 fc_speed_400:1;
++ u8 fc_speed_1600:1;
++ u8 fc_speed_800:1;
++ u8 fc_speed_1200:1;
++#else
++#error Unknown Endian
++#endif
++ u8 encoding;
++ u8 br_nominal;
++ u8 rate_id;
++ u8 link_len[6];
++ char vendor_name[16];
++ u8 reserved36;
++ char vendor_oui[3];
++ char vendor_pn[16];
++ char vendor_rev[4];
++ union {
++ __be16 optical_wavelength;
++ u8 cable_spec;
++ };
++ u8 reserved62;
++ u8 cc_base;
++};
++
++struct __packed sfp_eeprom_ext {
++ __be16 options;
++ u8 br_max;
++ u8 br_min;
++ char vendor_sn[16];
++ char datecode[8];
++ u8 diagmon;
++ u8 enhopts;
++ u8 sff8472_compliance;
++ u8 cc_ext;
++};
++
++struct __packed sfp_eeprom_id {
++ struct sfp_eeprom_base base;
++ struct sfp_eeprom_ext ext;
++};
++
++/* SFP EEPROM registers */
++enum {
++ SFP_PHYS_ID = 0x00,
++ SFP_PHYS_EXT_ID = 0x01,
++ SFP_CONNECTOR = 0x02,
++ SFP_COMPLIANCE = 0x03,
++ SFP_ENCODING = 0x0b,
++ SFP_BR_NOMINAL = 0x0c,
++ SFP_RATE_ID = 0x0d,
++ SFP_LINK_LEN_SM_KM = 0x0e,
++ SFP_LINK_LEN_SM_100M = 0x0f,
++ SFP_LINK_LEN_50UM_OM2_10M = 0x10,
++ SFP_LINK_LEN_62_5UM_OM1_10M = 0x11,
++ SFP_LINK_LEN_COPPER_1M = 0x12,
++ SFP_LINK_LEN_50UM_OM4_10M = 0x12,
++ SFP_LINK_LEN_50UM_OM3_10M = 0x13,
++ SFP_VENDOR_NAME = 0x14,
++ SFP_VENDOR_OUI = 0x25,
++ SFP_VENDOR_PN = 0x28,
++ SFP_VENDOR_REV = 0x38,
++ SFP_OPTICAL_WAVELENGTH_MSB = 0x3c,
++ SFP_OPTICAL_WAVELENGTH_LSB = 0x3d,
++ SFP_CABLE_SPEC = 0x3c,
++ SFP_CC_BASE = 0x3f,
++ SFP_OPTIONS = 0x40, /* 2 bytes, MSB, LSB */
++ SFP_BR_MAX = 0x42,
++ SFP_BR_MIN = 0x43,
++ SFP_VENDOR_SN = 0x44,
++ SFP_DATECODE = 0x54,
++ SFP_DIAGMON = 0x5c,
++ SFP_ENHOPTS = 0x5d,
++ SFP_SFF8472_COMPLIANCE = 0x5e,
++ SFP_CC_EXT = 0x5f,
++
++ SFP_PHYS_ID_SFP = 0x03,
++ SFP_PHYS_EXT_ID_SFP = 0x04,
++ SFP_CONNECTOR_UNSPEC = 0x00,
++ /* codes 01-05 not supportable on SFP, but some modules have single SC */
++ SFP_CONNECTOR_SC = 0x01,
++ SFP_CONNECTOR_FIBERJACK = 0x06,
++ SFP_CONNECTOR_LC = 0x07,
++ SFP_CONNECTOR_MT_RJ = 0x08,
++ SFP_CONNECTOR_MU = 0x09,
++ SFP_CONNECTOR_SG = 0x0a,
++ SFP_CONNECTOR_OPTICAL_PIGTAIL = 0x0b,
++ SFP_CONNECTOR_MPO_1X12 = 0x0c,
++ SFP_CONNECTOR_MPO_2X16 = 0x0d,
++ SFP_CONNECTOR_HSSDC_II = 0x20,
++ SFP_CONNECTOR_COPPER_PIGTAIL = 0x21,
++ SFP_CONNECTOR_RJ45 = 0x22,
++ SFP_CONNECTOR_NOSEPARATE = 0x23,
++ SFP_CONNECTOR_MXC_2X16 = 0x24,
++ SFP_ENCODING_UNSPEC = 0x00,
++ SFP_ENCODING_8B10B = 0x01,
++ SFP_ENCODING_4B5B = 0x02,
++ SFP_ENCODING_NRZ = 0x03,
++ SFP_ENCODING_MANCHESTER = 0x04,
++ SFP_OPTIONS_HIGH_POWER_LEVEL = BIT(13),
++ SFP_OPTIONS_PAGING_A2 = BIT(12),
++ SFP_OPTIONS_RETIMER = BIT(11),
++ SFP_OPTIONS_COOLED_XCVR = BIT(10),
++ SFP_OPTIONS_POWER_DECL = BIT(9),
++ SFP_OPTIONS_RX_LINEAR_OUT = BIT(8),
++ SFP_OPTIONS_RX_DECISION_THRESH = BIT(7),
++ SFP_OPTIONS_TUNABLE_TX = BIT(6),
++ SFP_OPTIONS_RATE_SELECT = BIT(5),
++ SFP_OPTIONS_TX_DISABLE = BIT(4),
++ SFP_OPTIONS_TX_FAULT = BIT(3),
++ SFP_OPTIONS_LOS_INVERTED = BIT(2),
++ SFP_OPTIONS_LOS_NORMAL = BIT(1),
++ SFP_DIAGMON_DDM = BIT(6),
++ SFP_DIAGMON_INT_CAL = BIT(5),
++ SFP_DIAGMON_EXT_CAL = BIT(4),
++ SFP_DIAGMON_RXPWR_AVG = BIT(3),
++ SFP_DIAGMON_ADDRMODE = BIT(2),
++ SFP_ENHOPTS_ALARMWARN = BIT(7),
++ SFP_ENHOPTS_SOFT_TX_DISABLE = BIT(6),
++ SFP_ENHOPTS_SOFT_TX_FAULT = BIT(5),
++ SFP_ENHOPTS_SOFT_RX_LOS = BIT(4),
++ SFP_ENHOPTS_SOFT_RATE_SELECT = BIT(3),
++ SFP_ENHOPTS_APP_SELECT_SFF8079 = BIT(2),
++ SFP_ENHOPTS_SOFT_RATE_SFF8431 = BIT(1),
++ SFP_SFF8472_COMPLIANCE_NONE = 0x00,
++ SFP_SFF8472_COMPLIANCE_REV9_3 = 0x01,
++ SFP_SFF8472_COMPLIANCE_REV9_5 = 0x02,
++ SFP_SFF8472_COMPLIANCE_REV10_2 = 0x03,
++ SFP_SFF8472_COMPLIANCE_REV10_4 = 0x04,
++ SFP_SFF8472_COMPLIANCE_REV11_0 = 0x05,
++ SFP_SFF8472_COMPLIANCE_REV11_3 = 0x06,
++ SFP_SFF8472_COMPLIANCE_REV11_4 = 0x07,
++ SFP_SFF8472_COMPLIANCE_REV12_0 = 0x08,
++};
++
++/* SFP Diagnostics */
++enum {
++ /* Alarm and warnings stored MSB at lower address then LSB */
++ SFP_TEMP_HIGH_ALARM = 0x00,
++ SFP_TEMP_LOW_ALARM = 0x02,
++ SFP_TEMP_HIGH_WARN = 0x04,
++ SFP_TEMP_LOW_WARN = 0x06,
++ SFP_VOLT_HIGH_ALARM = 0x08,
++ SFP_VOLT_LOW_ALARM = 0x0a,
++ SFP_VOLT_HIGH_WARN = 0x0c,
++ SFP_VOLT_LOW_WARN = 0x0e,
++ SFP_BIAS_HIGH_ALARM = 0x10,
++ SFP_BIAS_LOW_ALARM = 0x12,
++ SFP_BIAS_HIGH_WARN = 0x14,
++ SFP_BIAS_LOW_WARN = 0x16,
++ SFP_TXPWR_HIGH_ALARM = 0x18,
++ SFP_TXPWR_LOW_ALARM = 0x1a,
++ SFP_TXPWR_HIGH_WARN = 0x1c,
++ SFP_TXPWR_LOW_WARN = 0x1e,
++ SFP_RXPWR_HIGH_ALARM = 0x20,
++ SFP_RXPWR_LOW_ALARM = 0x22,
++ SFP_RXPWR_HIGH_WARN = 0x24,
++ SFP_RXPWR_LOW_WARN = 0x26,
++ SFP_LASER_TEMP_HIGH_ALARM = 0x28,
++ SFP_LASER_TEMP_LOW_ALARM = 0x2a,
++ SFP_LASER_TEMP_HIGH_WARN = 0x2c,
++ SFP_LASER_TEMP_LOW_WARN = 0x2e,
++ SFP_TEC_CUR_HIGH_ALARM = 0x30,
++ SFP_TEC_CUR_LOW_ALARM = 0x32,
++ SFP_TEC_CUR_HIGH_WARN = 0x34,
++ SFP_TEC_CUR_LOW_WARN = 0x36,
++ SFP_CAL_RXPWR4 = 0x38,
++ SFP_CAL_RXPWR3 = 0x3c,
++ SFP_CAL_RXPWR2 = 0x40,
++ SFP_CAL_RXPWR1 = 0x44,
++ SFP_CAL_RXPWR0 = 0x48,
++ SFP_CAL_TXI_SLOPE = 0x4c,
++ SFP_CAL_TXI_OFFSET = 0x4e,
++ SFP_CAL_TXPWR_SLOPE = 0x50,
++ SFP_CAL_TXPWR_OFFSET = 0x52,
++ SFP_CAL_T_SLOPE = 0x54,
++ SFP_CAL_T_OFFSET = 0x56,
++ SFP_CAL_V_SLOPE = 0x58,
++ SFP_CAL_V_OFFSET = 0x5a,
++ SFP_CHKSUM = 0x5f,
++
++ SFP_TEMP = 0x60,
++ SFP_VCC = 0x62,
++ SFP_TX_BIAS = 0x64,
++ SFP_TX_POWER = 0x66,
++ SFP_RX_POWER = 0x68,
++ SFP_LASER_TEMP = 0x6a,
++ SFP_TEC_CUR = 0x6c,
++
++ SFP_STATUS = 0x6e,
++ SFP_ALARM = 0x70,
++
++ SFP_EXT_STATUS = 0x76,
++ SFP_VSL = 0x78,
++ SFP_PAGE = 0x7f,
++};
++
++#endif
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