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bnxt_en: Enable and disable RX CTAG and RX STAG VLAN acceleration together.

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The hardware can only be set to strip or not strip both the VLAN CTAG and
STAG.  It cannot strip one and not strip the other.  Add logic to
bnxt_fix_features() to toggle both feature flags when the user is toggling
one of them.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2016-06-06 02:37:15 -04:00 committed by David S. Miller
parent b9a8460a08
commit 5a9f6b238e
1 changed files with 14 additions and 0 deletions
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14
drivers/net/ethernet/broadcom/bnxt/bnxt.c
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@ -5467,6 +5467,20 @@ static netdev_features_t bnxt_fix_features(struct net_device *dev,
if (!bnxt_rfs_capable(bp))
features &= ~NETIF_F_NTUPLE;
/* Both CTAG and STAG VLAN accelaration on the RX side have to be
* turned on or off together.
*/
if ((features & (NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_STAG_RX)) !=
(NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_STAG_RX)) {
if (dev->features & NETIF_F_HW_VLAN_CTAG_RX)
features &= ~(NETIF_F_HW_VLAN_CTAG_RX |
NETIF_F_HW_VLAN_STAG_RX);
else
features |= NETIF_F_HW_VLAN_CTAG_RX |
NETIF_F_HW_VLAN_STAG_RX;
}
return features;
}