From 2bd229df5e2ecbc13909f71dbd196fced1d533ca Mon Sep 17 00:00:00 2001
From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Tue, 4 Jun 2019 23:02:34 +0200
Subject: [PATCH] net: phy: remove state PHY_FORCING
In the early days of phylib we had a functionality that changed to the
next lower speed in fixed mode if no link was established after a
certain period of time. This functionality has been removed years ago,
and state PHY_FORCING isn't needed any longer. Instead we can go from
UP to RUNNING or NOLINK directly (same as in autoneg mode).
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/phy/phy.c | 26 ++------------------------
include/linux/phy.h | 11 -----------
2 files changed, 2 insertions(+), 35 deletions(-)
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 0084220d10dc6..d9150765009ed 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -43,7 +43,6 @@ static const char *phy_state_to_str(enum phy_state st)
PHY_STATE_STR(UP)
PHY_STATE_STR(RUNNING)
PHY_STATE_STR(NOLINK)
- PHY_STATE_STR(FORCING)
PHY_STATE_STR(HALTED)
}
@@ -577,15 +576,8 @@ int phy_start_aneg(struct phy_device *phydev)
if (err < 0)
goto out_unlock;
- if (phy_is_started(phydev)) {
- if (phydev->autoneg == AUTONEG_ENABLE) {
- err = phy_check_link_status(phydev);
- } else {
- phydev->state = PHY_FORCING;
- phydev->link_timeout = PHY_FORCE_TIMEOUT;
- }
- }
-
+ if (phy_is_started(phydev))
+ err = phy_check_link_status(phydev);
out_unlock:
mutex_unlock(&phydev->lock);
@@ -951,20 +943,6 @@ void phy_state_machine(struct work_struct *work)
case PHY_RUNNING:
err = phy_check_link_status(phydev);
break;
- case PHY_FORCING:
- err = genphy_update_link(phydev);
- if (err)
- break;
-
- if (phydev->link) {
- phydev->state = PHY_RUNNING;
- phy_link_up(phydev);
- } else {
- if (0 == phydev->link_timeout--)
- needs_aneg = true;
- phy_link_down(phydev, false);
- }
- break;
case PHY_HALTED:
if (phydev->link) {
phydev->link = 0;
diff --git a/include/linux/phy.h b/include/linux/phy.h
index dc4b51060ebc6..8caaf76685cda 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -297,12 +297,6 @@ struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr);
* - irq or timer will set RUNNING if link comes back
* - phy_stop moves to HALTED
*
- * FORCING: PHY is being configured with forced settings
- * - if link is up, move to RUNNING
- * - If link is down, we drop to the next highest setting, and
- * retry (FORCING) after a timeout
- * - phy_stop moves to HALTED
- *
* RUNNING: PHY is currently up, running, and possibly sending
* and/or receiving packets
* - irq or timer will set NOLINK if link goes down
@@ -319,7 +313,6 @@ enum phy_state {
PHY_UP,
PHY_RUNNING,
PHY_NOLINK,
- PHY_FORCING,
};
/**
@@ -347,8 +340,6 @@ struct phy_c45_device_ids {
* loopback_enabled: Set true if this phy has been loopbacked successfully.
* state: state of the PHY for management purposes
* dev_flags: Device-specific flags used by the PHY driver.
- * link_timeout: The number of timer firings to wait before the
- * giving up on the current attempt at acquiring a link
* irq: IRQ number of the PHY's interrupt (-1 if none)
* phy_timer: The timer for handling the state machine
* attached_dev: The attached enet driver's device instance ptr
@@ -416,8 +407,6 @@ struct phy_device {
/* Energy efficient ethernet modes which should be prohibited */
u32 eee_broken_modes;
- int link_timeout;
-
#ifdef CONFIG_LED_TRIGGER_PHY
struct phy_led_trigger *phy_led_triggers;
unsigned int phy_num_led_triggers;
--
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