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authorGuo-Fu Tseng <cooldavid@cooldavid.org>2009-07-06 04:41:22 +0000
committerDavid S. Miller <davem@davemloft.net>2009-07-06 13:05:11 -0700
commitce7d70af2c8b9c74e8afb2c0d69e304d141ce4aa (patch)
tree8e463f11f68e7b7087942488e4e455d447b52672 /drivers/net/jme.c
parentd1dfa1d1de855e8db58ec4e403af5939d273f8fe (diff)
downloadop-kernel-dev-ce7d70af2c8b9c74e8afb2c0d69e304d141ce4aa.zip
op-kernel-dev-ce7d70af2c8b9c74e8afb2c0d69e304d141ce4aa.tar.gz
jme: Tuning rxsum function
1. Use more efficient way to determine flag status. 2. Hardware dose not mark fragment bit against IPv6 packets, print TCP/UDP checksum warning message for IPv4 packets only. Signed-off-by: Guo-Fu Tseng <cooldavid@cooldavid.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/jme.c')
-rw-r--r--drivers/net/jme.c26
1 files changed, 13 insertions, 13 deletions
diff --git a/drivers/net/jme.c b/drivers/net/jme.c
index 29cd5f4..e7068c7 100644
--- a/drivers/net/jme.c
+++ b/drivers/net/jme.c
@@ -880,27 +880,27 @@ jme_rxsum_ok(struct jme_adapter *jme, u16 flags)
if (!(flags & (RXWBFLAG_TCPON | RXWBFLAG_UDPON | RXWBFLAG_IPV4)))
return false;
- if (unlikely(!(flags & RXWBFLAG_MF) &&
- (flags & RXWBFLAG_TCPON) && !(flags & RXWBFLAG_TCPCS))) {
- msg_rx_err(jme, "TCP Checksum error.\n");
- goto out_sumerr;
+ if (unlikely((flags & (RXWBFLAG_MF | RXWBFLAG_TCPON | RXWBFLAG_TCPCS))
+ == RXWBFLAG_TCPON)) {
+ if (flags & RXWBFLAG_IPV4)
+ msg_rx_err(jme, "TCP Checksum error\n");
+ return false;
}
- if (unlikely(!(flags & RXWBFLAG_MF) &&
- (flags & RXWBFLAG_UDPON) && !(flags & RXWBFLAG_UDPCS))) {
- msg_rx_err(jme, "UDP Checksum error.\n");
- goto out_sumerr;
+ if (unlikely((flags & (RXWBFLAG_MF | RXWBFLAG_UDPON | RXWBFLAG_UDPCS))
+ == RXWBFLAG_UDPON)) {
+ if (flags & RXWBFLAG_IPV4)
+ msg_rx_err(jme, "UDP Checksum error.\n");
+ return false;
}
- if (unlikely((flags & RXWBFLAG_IPV4) && !(flags & RXWBFLAG_IPCS))) {
+ if (unlikely((flags & (RXWBFLAG_IPV4 | RXWBFLAG_IPCS))
+ == RXWBFLAG_IPV4)) {
msg_rx_err(jme, "IPv4 Checksum error.\n");
- goto out_sumerr;
+ return false;
}
return true;
-
-out_sumerr:
- return false;
}
static void
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