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qede: Fix single MTU sized packet from firmware GRO flow 

In firmware assisted GRO flow there could be a single MTU sized
segment arriving due to firmware aggregation timeout/last segment
in an aggregation flow, which is not expected to be an actual gro
packet. So If a skb has zero frags from the GRO flow then simply
push it in the stack as non gso skb.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Yuval Mintz <yuval.mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Manish Chopra 2016-04-20 03:03:29 -04:00 committed by David S. Miller
parent aad94c0408
commit ee2fa8e6b3
1 changed files with 13 additions and 0 deletions
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13
drivers/net/ethernet/qlogic/qede/qede_main.c
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@ -1069,6 +1069,17 @@ static void qede_gro_receive(struct qede_dev *edev,
struct sk_buff *skb,
u16 vlan_tag)
{
/* FW can send a single MTU sized packet from gro flow
* due to aggregation timeout/last segment etc. which
* is not expected to be a gro packet. If a skb has zero
* frags then simply push it in the stack as non gso skb.
*/
if (unlikely(!skb->data_len)) {
skb_shinfo(skb)->gso_type = 0;
skb_shinfo(skb)->gso_size = 0;
goto send_skb;
}
#ifdef CONFIG_INET
if (skb_shinfo(skb)->gso_size) {
skb_set_network_header(skb, 0);
@ -1087,6 +1098,8 @@ static void qede_gro_receive(struct qede_dev *edev,
}
}
#endif
send_skb:
skb_record_rx_queue(skb, fp->rss_id);
qede_skb_receive(edev, fp, skb, vlan_tag);
}