Commit 451c6bc9 authored by Jedrzej Jagielski's avatar Jedrzej Jagielski Committed by Tony Nguyen
Browse files

ixgbe: add support for ACPI WOL for E610 



Currently only APM (Advanced Power Management) is supported by
the ixgbe driver. It works for magic packets only, as for different
sources of wake-up E610 adapter utilizes different feature.

Add E610 specific implementation of ixgbe_set_wol() callback. When
any of broadcast/multicast/unicast wake-up is set, disable APM and
configure ACPI (Advanced Configuration and Power Interface).

Reviewed-by: default avatarMichal Swiatkowski <michal.swiatkowski@linux.intel.com>
Reviewed-by: default avatarAleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: default avatarJedrzej Jagielski <jedrzej.jagielski@intel.com>
Reviewed-by: default avatarSimon Horman <horms@kernel.org>
Tested-by: default avatarBharath R <bharath.r@intel.com>
Signed-off-by: default avatarTony Nguyen <anthony.l.nguyen@intel.com>
parent 462cc09a

drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c

+45 −1
Original line number Diff line number Diff line
@@ -2365,6 +2365,50 @@ static int ixgbe_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 
	return 0;

}



static int ixgbe_set_wol_acpi(struct net_device *netdev,

			      struct ethtool_wolinfo *wol)

{

	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);

	struct ixgbe_hw *hw = &adapter->hw;

	u32 grc;



	if (ixgbe_wol_exclusion(adapter, wol))

		return wol->wolopts ? -EOPNOTSUPP : 0;



	/* disable APM wakeup */

	grc = IXGBE_READ_REG(hw, IXGBE_GRC_X550EM_a);

	grc &= ~IXGBE_GRC_APME;

	IXGBE_WRITE_REG(hw, IXGBE_GRC_X550EM_a, grc);



	/* erase existing filters */

	IXGBE_WRITE_REG(hw, IXGBE_WUFC, 0);

	adapter->wol = 0;



	if (wol->wolopts & WAKE_UCAST)

		adapter->wol |= IXGBE_WUFC_EX;

	if (wol->wolopts & WAKE_MCAST)

		adapter->wol |= IXGBE_WUFC_MC;

	if (wol->wolopts & WAKE_BCAST)

		adapter->wol |= IXGBE_WUFC_BC;



	IXGBE_WRITE_REG(hw, IXGBE_WUC, IXGBE_WUC_PME_EN);

	IXGBE_WRITE_REG(hw, IXGBE_WUFC, adapter->wol);



	hw->wol_enabled = adapter->wol;

	device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);



	return 0;

}



static int ixgbe_set_wol_e610(struct net_device *netdev,

			      struct ethtool_wolinfo *wol)

{

	if (wol->wolopts & (WAKE_UCAST | WAKE_MCAST | WAKE_BCAST))

		return ixgbe_set_wol_acpi(netdev, wol);

	else

		return ixgbe_set_wol(netdev, wol);

}



static int ixgbe_nway_reset(struct net_device *netdev)

{

	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
@@ -3656,7 +3700,7 @@ static const struct ethtool_ops ixgbe_ethtool_ops_e610 = { 
	.get_regs_len           = ixgbe_get_regs_len,

	.get_regs               = ixgbe_get_regs,

	.get_wol                = ixgbe_get_wol,

	.set_wol                = ixgbe_set_wol,

	.set_wol                = ixgbe_set_wol_e610,

	.nway_reset             = ixgbe_nway_reset,

	.get_link               = ethtool_op_get_link,

	.get_eeprom_len         = ixgbe_get_eeprom_len,