diff options
| author | Peter Meerwald <pmeerw@pmeerw.net> | 2010-05-17 17:20:50 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-05-17 17:20:50 -0700 |
| commit | ec497b32c311b1e1aac22a76d294d24285d06331 (patch) | |
| tree | 5a7bac0a8019ba3433f0a8ebaf68e60f53783e26 /drivers/net/bfin_mac.c | |
| parent | fe92afedee23e1d91f0133360a24d2bf48270739 (diff) | |
| download | lwn-ec497b32c311b1e1aac22a76d294d24285d06331.tar.gz lwn-ec497b32c311b1e1aac22a76d294d24285d06331.zip | |
netdev: bfin_mac: handler RX status errors
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/bfin_mac.c')
| -rw-r--r-- | drivers/net/bfin_mac.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/net/bfin_mac.c b/drivers/net/bfin_mac.c index a173d8a40484..16f2a37c733d 100644 --- a/drivers/net/bfin_mac.c +++ b/drivers/net/bfin_mac.c @@ -980,12 +980,25 @@ out: return NETDEV_TX_OK; } +#define RX_ERROR_MASK (RX_LONG | RX_ALIGN | RX_CRC | RX_LEN | \ + RX_FRAG | RX_ADDR | RX_DMAO | RX_PHY | RX_LATE | RX_RANGE) + static void bfin_mac_rx(struct net_device *dev) { struct sk_buff *skb, *new_skb; unsigned short len; struct bfin_mac_local *lp __maybe_unused = netdev_priv(dev); + /* check if frame status word reports an error condition + * we which case we simply drop the packet + */ + if (current_rx_ptr->status.status_word & RX_ERROR_MASK) { + printk(KERN_NOTICE DRV_NAME + ": rx: receive error - packet dropped\n"); + dev->stats.rx_dropped++; + goto out; + } + /* allocate a new skb for next time receive */ skb = current_rx_ptr->skb; @@ -1024,11 +1037,9 @@ static void bfin_mac_rx(struct net_device *dev) netif_rx(skb); dev->stats.rx_packets++; dev->stats.rx_bytes += len; +out: current_rx_ptr->status.status_word = 0x00000000; current_rx_ptr = current_rx_ptr->next; - -out: - return; } /* interrupt routine to handle rx and error signal */ |