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ixgbe: add support for ACPI WOL for E610

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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: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Bharath R <bharath.r@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Jedrzej Jagielski 2025-03-03 13:06:28 +01:00 committed by Tony Nguyen
parent 462cc09ac3
commit 451c6bc923
1 changed files with 45 additions and 1 deletions
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46
drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
View File

@ -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,