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Commit 0a0e2344 authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
Browse files

bna: use netdev_alloc_skb_ip_align() 



Some workloads need some headroom (NET_SKB_PAD) to avoid expensive
reallocations.

Using netdev_alloc_skb_ip_align() instead of bare skb_alloc() brings the
NET_IP_ALIGN and the NET_SKB_PAD headroom.

Signed-off-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
CC: Rasesh Mody <rmody@brocade.com>
CC: Debashis Dutt <ddutt@brocade.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 135d23d6

drivers/net/bna/bnad.c

+2 −4
Original line number Diff line number Diff line
@@ -386,14 +386,12 @@ bnad_alloc_n_post_rxbufs(struct bnad *bnad, struct bna_rcb *rcb) 
			BNA_RXQ_QPGE_PTR_GET(unmap_prod, rcb->sw_qpt, rxent,

					     wi_range);

		}

		skb = alloc_skb(rcb->rxq->buffer_size + NET_IP_ALIGN,

				     GFP_ATOMIC);

		skb = netdev_alloc_skb_ip_align(bnad->netdev,

						rcb->rxq->buffer_size);

		if (unlikely(!skb)) {

			BNAD_UPDATE_CTR(bnad, rxbuf_alloc_failed);

			goto finishing;

		}

		skb->dev = bnad->netdev;

		skb_reserve(skb, NET_IP_ALIGN);

		unmap_array[unmap_prod].skb = skb;

		dma_addr = dma_map_single(&bnad->pcidev->dev, skb->data,

					  rcb->rxq->buffer_size,