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Commit 56032be7 authored by Bruce Allan's avatar Bruce Allan Committed by Jeff Kirsher
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e1000e: always set transmit descriptor control registers the same 



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

Signed-off-by: default avatarBruce Allan <bruce.w.allan@intel.com>
Tested-by: default avatarAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent b6fbca2a

drivers/net/ethernet/intel/e1000e/netdev.c

+2 −2
Original line number Diff line number Diff line
@@ -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);