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be2net: Fix to avoid hardware workaround when not needed

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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
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@ -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 */