diff options
| author | Stanislaw Gruszka <sgruszka@redhat.com> | 2010-10-20 22:25:43 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-10-21 08:32:48 (GMT) |
| commit | d827d86b6fe87b420ef3c0685ab580290ae64beb (patch) | |
| tree | 9225a175bd59ab37638daf50346ec2a79d272930 | |
| parent | fccec10b33503a2b1197c8e7a3abd30443bedb08 (diff) | |
| download | linux-d827d86b6fe87b420ef3c0685ab580290ae64beb.tar.xz | |
r8169: print errors when dma mapping fail
If dma mapping fail we are dropping packages or fail to open device.
But exact reason of drop/fail stays unknow for a user, so print errors.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/r8169.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c index 0204fe2b..d88ce9f 100644 --- a/drivers/net/r8169.c +++ b/drivers/net/r8169.c @@ -3974,8 +3974,11 @@ static struct sk_buff *rtl8169_alloc_rx_data(struct rtl8169_private *tp, mapping = dma_map_single(d, rtl8169_align(data), rx_buf_sz, DMA_FROM_DEVICE); - if (unlikely(dma_mapping_error(d, mapping))) + if (unlikely(dma_mapping_error(d, mapping))) { + if (net_ratelimit()) + netif_err(tp, drv, tp->dev, "Failed to map RX DMA!\n"); goto err_out; + } rtl8169_map_to_asic(desc, mapping, rx_buf_sz); return data; @@ -4203,8 +4206,12 @@ static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb, len = frag->size; addr = ((void *) page_address(frag->page)) + frag->page_offset; mapping = dma_map_single(d, addr, len, DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(d, mapping))) + if (unlikely(dma_mapping_error(d, mapping))) { + if (net_ratelimit()) + netif_err(tp, drv, tp->dev, + "Failed to map TX fragments DMA!\n"); goto err_out; + } /* anti gcc 2.95.3 bugware (sic) */ status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC)); @@ -4270,8 +4277,11 @@ static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb, len = skb_headlen(skb); mapping = dma_map_single(d, skb->data, len, DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(d, mapping))) + if (unlikely(dma_mapping_error(d, mapping))) { + if (net_ratelimit()) + netif_err(tp, drv, dev, "Failed to map TX DMA!\n"); goto err_dma_0; + } tp->tx_skb[entry].len = len; txd->addr = cpu_to_le64(mapping); |