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qeth: CCL-sequence numbers required for protocol ETH_P_802_2 only

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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>
This commit is contained in:
Ursula Braun 2008-04-01 10:26:56 +02:00 committed by Jeff Garzik
parent 922dc0624e
commit 1288372599
1 changed files with 2 additions and 1 deletions
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3
drivers/s390/net/qeth_l2_main.c
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@ -451,7 +451,8 @@ static void qeth_l2_process_inbound_buffer(struct qeth_card *card,
skb->ip_summed = CHECKSUM_UNNECESSARY; skb->ip_summed = CHECKSUM_UNNECESSARY;
else else
skb->ip_summed = CHECKSUM_NONE; 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; len = skb->len;
netif_rx(skb); netif_rx(skb);
break; break;