diff options
| author | Ursula Braun <braunu@de.ibm.com> | 2008-04-01 10:26:56 +0200 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-04-16 20:41:40 -0400 |
| commit | 128837259912087101cd336226abc7ee3e8555b5 (patch) | |
| tree | 56227ddec4fd58952b899f43481c5c2a32d5664e /drivers/s390 | |
| parent | 922dc0624ea02905e33a7fe1440f8cd157f9a4e5 (diff) | |
| download | talos-op-linux-128837259912087101cd336226abc7ee3e8555b5.tar.gz talos-op-linux-128837259912087101cd336226abc7ee3e8555b5.zip | |
qeth: CCL-sequence numbers required for protocol ETH_P_802_2 only
Symptom: slow CCL response time
Problem: non-ETH_P_802_2 packets are not delivered to NDH for
CCL. But CCL detects missing sequence numbers, which
cause a serious performance problem with CCL.
Solution: assign sequence numbers only to 802.2 packets.
Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/net/qeth_l2_main.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index 4417a3629ae0..0263d9406fcf 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -451,7 +451,8 @@ static void qeth_l2_process_inbound_buffer(struct qeth_card *card, skb->ip_summed = CHECKSUM_UNNECESSARY; else skb->ip_summed = CHECKSUM_NONE; - *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno; + if (skb->protocol == htons(ETH_P_802_2)) + *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno; len = skb->len; netif_rx(skb); break; |
