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ixgbe: create function to restart autoneg

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This patch is for restarting auto negotiation on PHY.

Signed-off-by: Jakub Chylkowski <jakubx.chylkowski@intel.com>
Signed-off-by: Guinan Sun <guinanx.sun@intel.com>
Reviewed-by: Wei Zhao <wei.zhao1@intel.com>

Approved by:	imp
Obtained from:	DPDK (664ea2614eafbec8eda5c86764ff047475a1e5c6)
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D31621
This commit is contained in:
Guinan Sun 2020-07-09 08:00:36 +00:00 committed by Kevin Bowling
parent ff8db817ab
commit 80a39a2bda
2 changed files with 23 additions and 26 deletions
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48
sys/dev/ixgbe/ixgbe_phy.c
View File

@ -573,6 +573,26 @@ out:
return status;
}
/**
* ixgbe_restart_auto_neg - Restart auto negotiation on the PHY
* @hw: pointer to hardware structure
**/
void ixgbe_restart_auto_neg(struct ixgbe_hw *hw)
{
u16 autoneg_reg;
/* Check if PHY reset is blocked by MNG FW */
if (ixgbe_check_reset_blocked(hw))
return;
/* Restart PHY auto-negotiation. */
hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_CONTROL,
IXGBE_MDIO_AUTO_NEG_DEV_TYPE, &autoneg_reg);
autoneg_reg |= IXGBE_MII_RESTART;
hw->phy.ops.write_reg(hw, IXGBE_MDIO_AUTO_NEG_CONTROL,
IXGBE_MDIO_AUTO_NEG_DEV_TYPE, autoneg_reg);
}
/**
* ixgbe_read_phy_mdi - Reads a value from a specified PHY register without
* the SWFW lock
@ -857,19 +877,7 @@ s32 ixgbe_setup_phy_link_generic(struct ixgbe_hw *hw)
IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
autoneg_reg);
/* Blocked by MNG FW so don't reset PHY */
if (ixgbe_check_reset_blocked(hw))
return status;
/* Restart PHY auto-negotiation. */
hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_CONTROL,
IXGBE_MDIO_AUTO_NEG_DEV_TYPE, &autoneg_reg);
autoneg_reg |= IXGBE_MII_RESTART;
hw->phy.ops.write_reg(hw, IXGBE_MDIO_AUTO_NEG_CONTROL,
IXGBE_MDIO_AUTO_NEG_DEV_TYPE, autoneg_reg);
ixgbe_restart_auto_neg(hw);
return status;
}
@ -1093,19 +1101,7 @@ s32 ixgbe_setup_phy_link_tnx(struct ixgbe_hw *hw)
autoneg_reg);
}
/* Blocked by MNG FW so don't reset PHY */
if (ixgbe_check_reset_blocked(hw))
return status;
/* Restart PHY auto-negotiation. */
hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_CONTROL,
IXGBE_MDIO_AUTO_NEG_DEV_TYPE, &autoneg_reg);
autoneg_reg |= IXGBE_MII_RESTART;
hw->phy.ops.write_reg(hw, IXGBE_MDIO_AUTO_NEG_CONTROL,
IXGBE_MDIO_AUTO_NEG_DEV_TYPE, autoneg_reg);
ixgbe_restart_auto_neg(hw);
return status;
}

1
sys/dev/ixgbe/ixgbe_phy.h
View File

@ -163,6 +163,7 @@ enum ixgbe_phy_type ixgbe_get_phy_type_from_id(u32 phy_id);
s32 ixgbe_get_phy_id(struct ixgbe_hw *hw);
s32 ixgbe_identify_phy_generic(struct ixgbe_hw *hw);
s32 ixgbe_reset_phy_generic(struct ixgbe_hw *hw);
void ixgbe_restart_auto_neg(struct ixgbe_hw *hw);
s32 ixgbe_read_phy_reg_mdi(struct ixgbe_hw *hw, u32 reg_addr, u32 device_type,
u16 *phy_data);
s32 ixgbe_write_phy_reg_mdi(struct ixgbe_hw *hw, u32 reg_addr, u32 device_type,