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i40e: fix bug in dma sync

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Driver was using an offset based off a DMA handle while mapping and
unmapping using sync_single_range_for[cpu|device], where it should
be using DMA handle (returned from alloc_coherent) and the offset of the
memory to be sync'd.

Change-ID: I208256565b1595ff0e9171ab852de06b997917c6
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Reviewed-by: Nelson, Shannon <shannon.nelson@intel.com>
Reviewed-by: Williams, Mitch A <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Jesse Brandeburg 2016-01-04 10:33:03 -08:00 committed by Jeff Kirsher
parent d89d967f71
commit 3578fa0a8c
2 changed files with 8 additions and 8 deletions
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8
drivers/net/ethernet/intel/i40e/i40e_txrx.c
View File

@ -1226,8 +1226,8 @@ void i40e_alloc_rx_buffers_ps(struct i40e_ring *rx_ring, u16 cleaned_count)
}
dma_sync_single_range_for_device(rx_ring->dev,
bi->dma,
0,
rx_ring->rx_bi[0].dma,
i * rx_ring->rx_hdr_len,
rx_ring->rx_hdr_len,
DMA_FROM_DEVICE);
/* Refresh the desc even if buffer_addrs didn't change
@ -1542,8 +1542,8 @@ static int i40e_clean_rx_irq_ps(struct i40e_ring *rx_ring, int budget)
skb_record_rx_queue(skb, rx_ring->queue_index);
/* we are reusing so sync this buffer for CPU use */
dma_sync_single_range_for_cpu(rx_ring->dev,
rx_bi->dma,
0,
rx_ring->rx_bi[0].dma,
i * rx_ring->rx_hdr_len,
rx_ring->rx_hdr_len,
DMA_FROM_DEVICE);
}

8
drivers/net/ethernet/intel/i40evf/i40e_txrx.c
View File

@ -700,8 +700,8 @@ void i40evf_alloc_rx_buffers_ps(struct i40e_ring *rx_ring, u16 cleaned_count)
}
dma_sync_single_range_for_device(rx_ring->dev,
bi->dma,
0,
rx_ring->rx_bi[0].dma,
i * rx_ring->rx_hdr_len,
rx_ring->rx_hdr_len,
DMA_FROM_DEVICE);
/* Refresh the desc even if buffer_addrs didn't change
@ -1007,8 +1007,8 @@ static int i40e_clean_rx_irq_ps(struct i40e_ring *rx_ring, int budget)
skb_record_rx_queue(skb, rx_ring->queue_index);
/* we are reusing so sync this buffer for CPU use */
dma_sync_single_range_for_cpu(rx_ring->dev,
rx_bi->dma,
0,
rx_ring->rx_bi[0].dma,
i * rx_ring->rx_hdr_len,
rx_ring->rx_hdr_len,
DMA_FROM_DEVICE);
}