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e1000e: always set transmit descriptor control registers the same

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The hardware erratum workaround where the TXDCTL register must be the same
setting for both queues should always be done.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Bruce Allan 2011-12-16 00:46:01 +00:00 committed by Jeff Kirsher
parent b6fbca2af3
commit 56032be77c
1 changed files with 2 additions and 2 deletions
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4
drivers/net/ethernet/intel/e1000e/netdev.c
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@ -2817,9 +2817,9 @@ static void e1000_configure_tx(struct e1000_adapter *adapter)
*/
txdctl |= E1000_TXDCTL_DMA_BURST_ENABLE;
ew32(TXDCTL(0), txdctl);
/* erratum work around: set txdctl the same for both queues */
ew32(TXDCTL(1), txdctl);
}
/* erratum work around: set txdctl the same for both queues */
ew32(TXDCTL(1), er32(TXDCTL(0)));
/* Program the Transmit Control Register */
tctl = er32(TCTL);