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| author | Michael Chan <michael.chan@broadcom.com> | 2017-03-28 19:47:31 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-03-29 14:05:34 -0700 |
| commit | 3ed3a83e3f3871c57b18cef09b148e96921236ed (patch) | |
| tree | 9c50f34747b46d94165da8e1dc3f551a231816a9 /drivers/net | |
| parent | 23e12c893489ed12ecfccbf866fc62af1bead4b0 (diff) | |
| download | linux-stable-3ed3a83e3f3871c57b18cef09b148e96921236ed.tar.gz linux-stable-3ed3a83e3f3871c57b18cef09b148e96921236ed.tar.bz2 linux-stable-3ed3a83e3f3871c57b18cef09b148e96921236ed.zip | |
bnxt_en: Fix DMA unmapping of the RX buffers in XDP mode during shutdown.
In bnxt_free_rx_skbs(), which is called to free up all RX buffers during
shutdown, we need to unmap the page if we are running in XDP mode.
Fixes: c61fb99cae51 ("bnxt_en: Add RX page mode support.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 6c8568780a6a..1f1e54ba0ecb 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -1983,20 +1983,25 @@ static void bnxt_free_rx_skbs(struct bnxt *bp) for (j = 0; j < max_idx; j++) { struct bnxt_sw_rx_bd *rx_buf = &rxr->rx_buf_ring[j]; + dma_addr_t mapping = rx_buf->mapping; void *data = rx_buf->data; if (!data) continue; - dma_unmap_single(&pdev->dev, rx_buf->mapping, - bp->rx_buf_use_size, bp->rx_dir); - rx_buf->data = NULL; - if (BNXT_RX_PAGE_MODE(bp)) + if (BNXT_RX_PAGE_MODE(bp)) { + mapping -= bp->rx_dma_offset; + dma_unmap_page(&pdev->dev, mapping, + PAGE_SIZE, bp->rx_dir); __free_page(data); - else + } else { + dma_unmap_single(&pdev->dev, mapping, + bp->rx_buf_use_size, + bp->rx_dir); kfree(data); + } } for (j = 0; j < max_agg_idx; j++) { |