path: root/drivers
diff options
authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>2010-06-17 08:56:05 -0700
committerDavid S. Miller <davem@davemloft.net>2010-06-17 08:56:05 -0700
commitaabef8b240880439b91574c9a9e33dcc44bfd8c7 (patch)
tree80cc9175da9ca00d179ac83b9039fa9ed6e1be14 /drivers
parentucc_geth: fix for RX skb buffers recycling (diff)
bnx2: fix dma_get_ops compilation breakage
This removes dma_get_ops() prefetch optimization in bnx2. bnx2 uses dma_get_ops() to see if dma_sync_single_for_cpu() is noop. bnx2 does prefetch if it's noop. But dma_get_ops() isn't available on all the architectures (only the architectures that uses dma_map_ops struct have it). Using dma_get_ops() in drivers leads to compilation breakage on many architectures. This patch removes dma_get_ops() and changes bnx2 to do prefetch on all the architectures. This adds useless prefetch on non-coherent architectures but this is harmless. It is also unlikely to cause the performance drop. [ Remove now unused local variable 'pdev' -DaveM ] Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
1 files changed, 4 insertions, 7 deletions
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 949d7a9dcf92..117432222a09 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -3073,7 +3073,6 @@ bnx2_rx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget)
u16 hw_cons, sw_cons, sw_ring_cons, sw_prod, sw_ring_prod;
struct l2_fhdr *rx_hdr;
int rx_pkt = 0, pg_ring_used = 0;
- struct pci_dev *pdev = bp->pdev;
hw_cons = bnx2_get_hw_rx_cons(bnapi);
sw_cons = rxr->rx_cons;
@@ -3099,12 +3098,10 @@ bnx2_rx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget)
skb = rx_buf->skb;
- if (!get_dma_ops(&pdev->dev)->sync_single_for_cpu) {
- next_rx_buf =
- &rxr->rx_buf_ring[
- RX_RING_IDX(NEXT_RX_BD(sw_cons))];
- prefetch(next_rx_buf->desc);
- }
+ next_rx_buf =
+ &rxr->rx_buf_ring[RX_RING_IDX(NEXT_RX_BD(sw_cons))];
+ prefetch(next_rx_buf->desc);
rx_buf->skb = NULL;
dma_addr = dma_unmap_addr(rx_buf, mapping);