If packet larger than MTU is received, the driver uses hardware to truncate the packet. Use the status registers to catch/drop them. Signed-off-by: Stephen Hemminger --- a/drivers/net/sky2.c 2007-07-09 15:30:12.000000000 -0700 +++ b/drivers/net/sky2.c 2007-07-09 15:30:12.000000000 -0700 @@ -2109,6 +2109,9 @@ static struct sk_buff *sky2_receive(stru if (!(status & GMR_FS_RX_OK)) goto resubmit; + if (status >> 16 != length) + goto len_mismatch; + if (length < copybreak) skb = receive_copy(sky2, re, length); else @@ -2118,6 +2121,11 @@ resubmit: return skb; +len_mismatch: + /* Truncation of overlength packets + causes PHY length to not match MAC length */ + ++sky2->net_stats.rx_length_errors; + error: ++sky2->net_stats.rx_errors; if (status & GMR_FS_RX_FF_OV) { -- Stephen Hemminger - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html