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Date:	Wed,  3 Oct 2012 15:27:10 -0700
From:	Jeff Kirsher <>
Cc:	Emil Tantilov <>,,,,,
	Jeff Kirsher <>
Subject: [net 4/5] ixgbe: fix poll loop for FDIRCTRL.INIT_DONE bit

From: Emil Tantilov <>

The loop in ixgbe_reinit_fdir_tables_82599() only polls for up to 100us
resulting in failures to update the FDIR filter table at 1Gbps and 10Gbps
when under load.

The poll times for FDIRCTRL.INIT_DONE are 55us, 550us and 5.5ms for 10Gbps,
1Gbps and 100Mbps respectively.

This patch sets the wait time to be the same as in ixgbe_fdir_enable_82599()

Reported-by: Bhushan <>
Signed-off-by: Emil Tantilov <>
Tested-by: Phil Schmitt <>
Signed-off-by: Jeff Kirsher <>
 drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
index 18bf08c..1077cb2 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
@@ -1099,7 +1099,7 @@ s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw)
-		udelay(10);
+		usleep_range(1000, 2000);
 		hw_dbg(hw, "Flow Director Signature poll time exceeded!\n");

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