[PATCH 1/2] igb: PCIe devices do not need to unset MANC_ARP_ENA
From: Auke Kok <hidden>
Date: 2008-02-14 18:17:12
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: David Graham <redacted> Users reported that ARP's were lost with igb. The problem is fixed by not enabling this manageability configuration bit. None of the release_manageability code is actually needed as the normal device reset during a shutdown returns everthing to the right condition automatically. Signed-off-by: David Graham <redacted> Signed-off-by: Auke Kok <redacted> --- drivers/net/igb/igb_main.c | 28 ---------------------------- 1 files changed, 0 insertions(+), 28 deletions(-)
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index d4eb8e2..bff280e 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c@@ -606,9 +606,6 @@ static void igb_init_manageability(struct igb_adapter *adapter) u32 manc2h = rd32(E1000_MANC2H); u32 manc = rd32(E1000_MANC); - /* disable hardware interception of ARP */ - manc &= ~(E1000_MANC_ARP_EN); - /* enable receiving management packets to the host */ /* this will probably generate destination unreachable messages * from the host OS, but the packets will be handled on SMBUS */
@@ -623,25 +620,6 @@ static void igb_init_manageability(struct igb_adapter *adapter) } } -static void igb_release_manageability(struct igb_adapter *adapter) -{ - struct e1000_hw *hw = &adapter->hw; - - if (adapter->en_mng_pt) { - u32 manc = rd32(E1000_MANC); - - /* re-enable hardware interception of ARP */ - manc |= E1000_MANC_ARP_EN; - manc &= ~E1000_MANC_EN_MNG2HOST; - - /* don't explicitly have to mess with MANC2H since - * MANC has an enable disable that gates MANC2H */ - - /* XXX stop the hardware watchdog ? */ - wr32(E1000_MANC, manc); - } -} - /** * igb_configure - configure the hardware for RX and TX * @adapter: private board structure
@@ -844,7 +822,6 @@ void igb_reset(struct igb_adapter *adapter) igb_reset_adaptive(&adapter->hw); adapter->hw.phy.ops.get_phy_info(&adapter->hw); - igb_release_manageability(adapter); } /**
@@ -1178,9 +1155,6 @@ static void __devexit igb_remove(struct pci_dev *pdev) flush_scheduled_work(); - - igb_release_manageability(adapter); - /* Release control of h/w to f/w. If f/w is AMT enabled, this * would have already happened in close and is redundant. */ igb_release_hw_control(adapter);
@@ -3955,8 +3929,6 @@ static int igb_suspend(struct pci_dev *pdev, pm_message_t state) pci_enable_wake(pdev, PCI_D3cold, 0); } - igb_release_manageability(adapter); - /* make sure adapter isn't asleep if manageability is enabled */ if (adapter->en_mng_pt) { pci_enable_wake(pdev, PCI_D3hot, 1); -------------------------------------------------------------------------
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