From f5ac7445ebdbfa8cd2d90ef2a58b8f4455bcb664 Mon Sep 17 00:00:00 2001 From: Raanan Avargil Date: Mon, 6 Jul 2015 16:48:00 +0300 Subject: [PATCH] e1000e: Fix EEE in Sx implementation This patch implements the EEE in Sx code so that it only applies to parts that support EEE in Sx (as opposed to all parts that support EEE). It also uses the existing eee_advert and eee_lp_abiliity to set just the bits (100/1000) that should be set. Signed-off-by: Raanan Avargil Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/e1000e/netdev.c | 27 ++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index fea1601f32a3..b32bc4848ae3 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -6317,6 +6317,33 @@ static int __e1000_shutdown(struct pci_dev *pdev, bool runtime) return retval; } + /* Ensure that the appropriate bits are set in LPI_CTRL + * for EEE in Sx + */ + if ((hw->phy.type >= e1000_phy_i217) && + adapter->eee_advert && hw->dev_spec.ich8lan.eee_lp_ability) { + u16 lpi_ctrl = 0; + + retval = hw->phy.ops.acquire(hw); + if (!retval) { + retval = e1e_rphy_locked(hw, I82579_LPI_CTRL, + &lpi_ctrl); + if (!retval) { + if (adapter->eee_advert & + hw->dev_spec.ich8lan.eee_lp_ability & + I82579_EEE_100_SUPPORTED) + lpi_ctrl |= I82579_LPI_CTRL_100_ENABLE; + if (adapter->eee_advert & + hw->dev_spec.ich8lan.eee_lp_ability & + I82579_EEE_1000_SUPPORTED) + lpi_ctrl |= I82579_LPI_CTRL_1000_ENABLE; + + retval = e1e_wphy_locked(hw, I82579_LPI_CTRL, + lpi_ctrl); + } + } + hw->phy.ops.release(hw); + } /* Release control of h/w to f/w. If f/w is AMT enabled, this * would have already happened in close and is redundant. -- GitLab