Upgrade to 4.4.50-rt62

[kvmfornfv.git] / kernel / drivers / net / ethernet / atheros / alx / main.c

diff --git a/kernel/drivers/net/ethernet/atheros/alx/main.c b/kernel/drivers/net/ethernet/atheros/alx/main.c
index bd377a6..df54475 100644 (file)
--- a/kernel/drivers/net/ethernet/atheros/alx/main.c
+++ b/kernel/drivers/net/ethernet/atheros/alx/main.c
@@ -86,9 +86,14 @@ static int alx_refill_rx_ring(struct alx_priv *alx, gfp_t gfp)
        while (!cur_buf->skb && next != rxq->read_idx) {
                struct alx_rfd *rfd = &rxq->rfd[cur];
 
-               skb = __netdev_alloc_skb(alx->dev, alx->rxbuf_size, gfp);
+               skb = __netdev_alloc_skb(alx->dev, alx->rxbuf_size + 64, gfp);
                if (!skb)
                        break;
+
+               /* Workround for the HW RX DMA overflow issue */
+               if (((unsigned long)skb->data & 0xfff) == 0xfc0)
+                       skb_reserve(skb, 64);
+
                dma = dma_map_single(&alx->hw.pdev->dev,
                                     skb->data, alx->rxbuf_size,
                                     DMA_FROM_DEVICE);