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| author | Heiner Kallweit <hkallweit1@gmail.com> | 2018-12-16 15:00:40 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-12-18 15:01:55 -0800 |
| commit | 2429f13870d3d2abbe200807d0462272e16ec830 (patch) | |
| tree | 7704a791a11bcd250a22e8f32b183db603b3d767 | |
| parent | 3379b3bfb71de154f44bca297f3aa039c5b12852 (diff) | |
| download | talos-obmc-linux-2429f13870d3d2abbe200807d0462272e16ec830.tar.gz talos-obmc-linux-2429f13870d3d2abbe200807d0462272e16ec830.zip | |
net: fec: remove workaround to restart phylib state machine on MDIO timeout
There's a workaround to restart the phylib state machine in case of a
MDIO access timeout. Seems it was introduced to deal with the
consequences of a too small MDIO timeout. See also commit message of
c3b084c24c8a ("net: fec: Adjust ENET MDIO timeouts") which increased
the timeout value later. Due to the later timeout value fix it seems
to be safe to remove the workaround.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/freescale/fec.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/freescale/fec_main.c | 12 |
2 files changed, 0 insertions, 13 deletions
diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h index bf80855dd0dd..f79e57f735b3 100644 --- a/drivers/net/ethernet/freescale/fec.h +++ b/drivers/net/ethernet/freescale/fec.h @@ -531,7 +531,6 @@ struct fec_enet_private { /* Phylib and MDIO interface */ struct mii_bus *mii_bus; - int mii_timeout; uint phy_speed; phy_interface_t phy_interface; struct device_node *phy_node; diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index 6db69ba30dcd..ae0f88bce9aa 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -1714,12 +1714,6 @@ static void fec_enet_adjust_link(struct net_device *ndev) struct phy_device *phy_dev = ndev->phydev; int status_change = 0; - /* Prevent a state halted on mii error */ - if (fep->mii_timeout && phy_dev->state == PHY_HALTED) { - phy_dev->state = PHY_RESUMING; - return; - } - /* * If the netdev is down, or is going down, we're not interested * in link state events, so just mark our idea of the link as down @@ -1779,7 +1773,6 @@ static int fec_enet_mdio_read(struct mii_bus *bus, int mii_id, int regnum) if (ret < 0) return ret; - fep->mii_timeout = 0; reinit_completion(&fep->mdio_done); /* start a read op */ @@ -1791,7 +1784,6 @@ static int fec_enet_mdio_read(struct mii_bus *bus, int mii_id, int regnum) time_left = wait_for_completion_timeout(&fep->mdio_done, usecs_to_jiffies(FEC_MII_TIMEOUT)); if (time_left == 0) { - fep->mii_timeout = 1; netdev_err(fep->netdev, "MDIO read timeout\n"); ret = -ETIMEDOUT; goto out; @@ -1820,7 +1812,6 @@ static int fec_enet_mdio_write(struct mii_bus *bus, int mii_id, int regnum, else ret = 0; - fep->mii_timeout = 0; reinit_completion(&fep->mdio_done); /* start a write op */ @@ -1833,7 +1824,6 @@ static int fec_enet_mdio_write(struct mii_bus *bus, int mii_id, int regnum, time_left = wait_for_completion_timeout(&fep->mdio_done, usecs_to_jiffies(FEC_MII_TIMEOUT)); if (time_left == 0) { - fep->mii_timeout = 1; netdev_err(fep->netdev, "MDIO write timeout\n"); ret = -ETIMEDOUT; } @@ -2001,8 +1991,6 @@ static int fec_enet_mii_init(struct platform_device *pdev) return -ENOENT; } - fep->mii_timeout = 0; - /* * Set MII speed to 2.5 MHz (= clk_get_rate() / 2 * phy_speed) * |
