From: Jakub Kicinski <jakub.kicinski@netronome.com>
Date: Thu, 25 Jan 2018 14:00:45 -0800
Subject: nfp: use tc_cls_can_offload_and_chain0()
Patch-mainline: v4.16-rc1
Git-commit: 3107fdc8b2a3dc9be3070a304a405cea546ac78e
References: bsc#1109837

Make use of tc_cls_can_offload_and_chain0() to set extack msg in case
ethtool tc offload flag is not set or chain unsupported.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/netronome/nfp/bpf/main.c       |    4 +---
 drivers/net/ethernet/netronome/nfp/flower/offload.c |    7 +++----
 2 files changed, 4 insertions(+), 7 deletions(-)

--- a/drivers/net/ethernet/netronome/nfp/bpf/main.c
+++ b/drivers/net/ethernet/netronome/nfp/bpf/main.c
@@ -130,7 +130,7 @@ static int nfp_bpf_setup_tc_block_cb(enu
 				   "only offload of BPF classifiers supported");
 		return -EOPNOTSUPP;
 	}
-	if (!tc_can_offload_extack(nn->dp.netdev, cls_bpf->common.extack))
+	if (!tc_cls_can_offload_and_chain0(nn->dp.netdev, &cls_bpf->common))
 		return -EOPNOTSUPP;
 	if (!nfp_net_ebpf_capable(nn)) {
 		NL_SET_ERR_MSG_MOD(cls_bpf->common.extack,
@@ -142,8 +142,6 @@ static int nfp_bpf_setup_tc_block_cb(enu
 				   "only ETH_P_ALL supported as filter protocol");
 		return -EOPNOTSUPP;
 	}
-	if (cls_bpf->common.chain_index)
-		return -EOPNOTSUPP;
 
 	/* Only support TC direct action */
 	if (!cls_bpf->exts_integrated ||
--- a/drivers/net/ethernet/netronome/nfp/flower/offload.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/offload.c
@@ -483,8 +483,7 @@ static int
 nfp_flower_repr_offload(struct nfp_app *app, struct net_device *netdev,
 			struct tc_cls_flower_offload *flower, bool egress)
 {
-	if (!eth_proto_is_802_3(flower->common.protocol) ||
-	    flower->common.chain_index)
+	if (!eth_proto_is_802_3(flower->common.protocol))
 		return -EOPNOTSUPP;
 
 	switch (flower->command) {
@@ -504,7 +503,7 @@ int nfp_flower_setup_tc_egress_cb(enum t
 {
 	struct nfp_repr *repr = cb_priv;
 
-	if (!tc_can_offload(repr->netdev))
+	if (!tc_cls_can_offload_and_chain0(repr->netdev, type_data))
 		return -EOPNOTSUPP;
 
 	switch (type) {
@@ -521,7 +520,7 @@ static int nfp_flower_setup_tc_block_cb(
 {
 	struct nfp_repr *repr = cb_priv;
 
-	if (!tc_can_offload(repr->netdev))
+	if (!tc_cls_can_offload_and_chain0(repr->netdev, type_data))
 		return -EOPNOTSUPP;
 
 	switch (type) {