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ixgbe: Release semaphore bits in the right order

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The global semaphore bits should be released in the reverse of the
order that they were taken, so correct that.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Mark Rustad 2015-04-10 10:36:31 -07:00 • committed by Jeff Kirsher
parent ae14a1d8e1
commit cb2effe540
1 changed files with 4 additions and 4 deletions
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8
drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c
View file

@ -696,14 +696,14 @@ static void ixgbe_release_swfw_sync_semaphore(struct ixgbe_hw *hw)
/* Release both semaphores by writing 0 to the bits REGSMP and SMBI */ /* Release both semaphores by writing 0 to the bits REGSMP and SMBI */
swsm = IXGBE_READ_REG(hw, IXGBE_SWSM);
swsm &= ~IXGBE_SWSM_SMBI;
IXGBE_WRITE_REG(hw, IXGBE_SWSM, swsm);
swsm = IXGBE_READ_REG(hw, IXGBE_SWFW_SYNC); swsm = IXGBE_READ_REG(hw, IXGBE_SWFW_SYNC);
swsm &= ~IXGBE_SWFW_REGSMP; swsm &= ~IXGBE_SWFW_REGSMP;
IXGBE_WRITE_REG(hw, IXGBE_SWFW_SYNC, swsm); IXGBE_WRITE_REG(hw, IXGBE_SWFW_SYNC, swsm);
swsm = IXGBE_READ_REG(hw, IXGBE_SWSM);
swsm &= ~IXGBE_SWSM_SMBI;
IXGBE_WRITE_REG(hw, IXGBE_SWSM, swsm);
IXGBE_WRITE_FLUSH(hw); IXGBE_WRITE_FLUSH(hw);
} }