[PATCH 4.19 02/32] cxgb4: offload VLAN flows regardless of VLAN ethtype

Greg Kroah-Hartman
2019-06-03T09:09:47Z

From: Raju Rangoju <rajur@chelsio.com>

[ Upstream commit b5730061d1056abf317caea823b94d6e12b5b4f6 ]

VLAN flows never get offloaded unless ivlan_vld is set in filter spec.
It's not compulsory for vlan_ethtype to be set.

So, always enable ivlan_vld bit for offloading VLAN flows regardless of
vlan_ethtype is set or not.

Fixes: ad9af3e09c (cxgb4: add tc flower match support for vlan)
Signed-off-by: Raju Rangoju <rajur@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
@@ -228,6 +228,9 @@ static void cxgb4_process_flow_match(str
fs->val.ivlan = vlan_tci;
fs->mask.ivlan = vlan_tci_mask;

+ fs->val.ivlan_vld = 1;
+ fs->mask.ivlan_vld = 1;
+
/* Chelsio adapters use ivlan_vld bit to match vlan packets
* as 802.1Q. Also, when vlan tag is present in packets,
* ethtype match is used then to match on ethtype of inner
@@ -238,8 +241,6 @@ static void cxgb4_process_flow_match(str
* ethtype value with ethtype of inner header.
*/
if (fs->val.ethtype == ETH_P_8021Q) {
- fs->val.ivlan_vld = 1;
- fs->mask.ivlan_vld = 1;
fs->val.ethtype = 0;
fs->mask.ethtype = 0;
}