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igb: Only sync size of expected frame in ethtool testing 

We only need to sync the size of the frame that is read to test.  We don't
need to sync the entire Rx buffer.  This way the testing is more consistent
with how we handle things in the receive path.

Signed-off-by: Alexander Duyck <alexander.h.duyck@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:
Alexander Duyck 2017-02-06 18:26:26 -08:00 committed by Jeff Kirsher
parent cfbc871c21
commit cb0ef1d1dc
1 changed files with 2 additions and 2 deletions
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4
drivers/net/ethernet/intel/igb/igb_ethtool.c
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@ -1818,7 +1818,7 @@ static int igb_clean_test_rings(struct igb_ring *rx_ring,
/* sync Rx buffer for CPU read */
dma_sync_single_for_cpu(rx_ring->dev,
rx_buffer_info->dma,
IGB_RX_BUFSZ,
size,
DMA_FROM_DEVICE);
/* verify contents of skb */
@ -1828,7 +1828,7 @@ static int igb_clean_test_rings(struct igb_ring *rx_ring,
/* sync Rx buffer for device write */
dma_sync_single_for_device(rx_ring->dev,
rx_buffer_info->dma,
IGB_RX_BUFSZ,
size,
DMA_FROM_DEVICE);
/* unmap buffer on Tx side */