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be2net: Fix to avoid hardware workaround when not needed 

Hardware workaround requesting hardware to skip vlan insertion is necessary
only when umc or qnq is enabled. Enabling this workaround in other scenarios
could cause controller to stall.

Signed-off-by: Sarveshwar Bandi <sarveshwar.bandi@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sarveshwar Bandi 2013-07-16 12:44:02 +05:30 committed by David S. Miller
parent 0fbe0d47b1
commit 52fe29e4bb
1 changed files with 10 additions and 4 deletions
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14
drivers/net/ethernet/emulex/benet/be_main.c
View File

@ -782,16 +782,22 @@ static struct sk_buff *be_insert_vlan_in_pkt(struct be_adapter *adapter,
if (vlan_tx_tag_present(skb))
vlan_tag = be_get_tx_vlan_tag(adapter, skb);
else if (qnq_async_evt_rcvd(adapter) && adapter->pvid)
vlan_tag = adapter->pvid;
if (qnq_async_evt_rcvd(adapter) && adapter->pvid) {
if (!vlan_tag)
vlan_tag = adapter->pvid;
/* f/w workaround to set skip_hw_vlan = 1, informs the F/W to
* skip VLAN insertion
*/
if (skip_hw_vlan)
*skip_hw_vlan = true;
}
if (vlan_tag) {
skb = __vlan_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
if (unlikely(!skb))
return skb;
skb->vlan_tci = 0;
if (skip_hw_vlan)
*skip_hw_vlan = true;
}
/* Insert the outer VLAN, if any */