From 29477e249f5a28444c556bbb816f3af2b6f84412 Mon Sep 17 00:00:00 2001 From: Bruce Allan Date: Thu, 7 Jan 2010 16:31:16 +0000 Subject: [PATCH] e1000e: don't accumulate PHY statistics on PHY read failure Signed-off-by: Bruce Allan Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/e1000e/netdev.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index 10aa0ec..c45965a 100644 --- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -3315,24 +3315,24 @@ void e1000e_update_stats(struct e1000_adapter *adapter) if ((hw->phy.type == e1000_phy_82578) || (hw->phy.type == e1000_phy_82577)) { e1e_rphy(hw, HV_SCC_UPPER, &phy_data); - e1e_rphy(hw, HV_SCC_LOWER, &phy_data); - adapter->stats.scc += phy_data; + if (!e1e_rphy(hw, HV_SCC_LOWER, &phy_data)) + adapter->stats.scc += phy_data; e1e_rphy(hw, HV_ECOL_UPPER, &phy_data); - e1e_rphy(hw, HV_ECOL_LOWER, &phy_data); - adapter->stats.ecol += phy_data; + if (!e1e_rphy(hw, HV_ECOL_LOWER, &phy_data)) + adapter->stats.ecol += phy_data; e1e_rphy(hw, HV_MCC_UPPER, &phy_data); - e1e_rphy(hw, HV_MCC_LOWER, &phy_data); - adapter->stats.mcc += phy_data; + if (!e1e_rphy(hw, HV_MCC_LOWER, &phy_data)) + adapter->stats.mcc += phy_data; e1e_rphy(hw, HV_LATECOL_UPPER, &phy_data); - e1e_rphy(hw, HV_LATECOL_LOWER, &phy_data); - adapter->stats.latecol += phy_data; + if (!e1e_rphy(hw, HV_LATECOL_LOWER, &phy_data)) + adapter->stats.latecol += phy_data; e1e_rphy(hw, HV_DC_UPPER, &phy_data); - e1e_rphy(hw, HV_DC_LOWER, &phy_data); - adapter->stats.dc += phy_data; + if (!e1e_rphy(hw, HV_DC_LOWER, &phy_data)) + adapter->stats.dc += phy_data; } else { adapter->stats.scc += er32(SCC); adapter->stats.ecol += er32(ECOL); @@ -3360,8 +3360,8 @@ void e1000e_update_stats(struct e1000_adapter *adapter) if ((hw->phy.type == e1000_phy_82578) || (hw->phy.type == e1000_phy_82577)) { e1e_rphy(hw, HV_COLC_UPPER, &phy_data); - e1e_rphy(hw, HV_COLC_LOWER, &phy_data); - hw->mac.collision_delta = phy_data; + if (!e1e_rphy(hw, HV_COLC_LOWER, &phy_data)) + hw->mac.collision_delta = phy_data; } else { hw->mac.collision_delta = er32(COLC); } @@ -3372,8 +3372,8 @@ void e1000e_update_stats(struct e1000_adapter *adapter) if ((hw->phy.type == e1000_phy_82578) || (hw->phy.type == e1000_phy_82577)) { e1e_rphy(hw, HV_TNCRS_UPPER, &phy_data); - e1e_rphy(hw, HV_TNCRS_LOWER, &phy_data); - adapter->stats.tncrs += phy_data; + if (!e1e_rphy(hw, HV_TNCRS_LOWER, &phy_data)) + adapter->stats.tncrs += phy_data; } else { if ((hw->mac.type != e1000_82574) && (hw->mac.type != e1000_82583)) -- 2.7.4