lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

sky2: check drop truncated packets

Browse Source 
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 <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Stephen Hemminger
2007-07-09 15:33:40 -07:00
committed by Jeff Garzik
parent f4331a6d24
commit 71749531f2
1 changed files with 8 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/net/sky2.c
View File

@@ -2109,6 +2109,9 @@ static struct sk_buff *sky2_receive(struct net_device *dev,
if (!(status & GMR_FS_RX_OK)) if (!(status & GMR_FS_RX_OK))
goto resubmit; goto resubmit;
if (status >> 16 != length)
goto len_mismatch;
if (length < copybreak) if (length < copybreak)
skb = receive_copy(sky2, re, length); skb = receive_copy(sky2, re, length);
else else
@@ -2118,6 +2121,11 @@ resubmit:
return skb; return skb;
len_mismatch:
/* Truncation of overlength packets
causes PHY length to not match MAC length */
++sky2->net_stats.rx_length_errors;
error: error:
++sky2->net_stats.rx_errors; ++sky2->net_stats.rx_errors;
if (status & GMR_FS_RX_FF_OV) { if (status & GMR_FS_RX_FF_OV) {