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path: root/drivers/net/ethernet/netronome/nfp/flower/offload.c
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Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/flower/offload.c')
-rw-r--r--drivers/net/ethernet/netronome/nfp/flower/offload.c60
1 files changed, 42 insertions, 18 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/flower/offload.c b/drivers/net/ethernet/netronome/nfp/flower/offload.c
index d868a5700e01..d396183108f7 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/offload.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/offload.c
@@ -105,43 +105,62 @@ static int
nfp_flower_calculate_key_layers(struct nfp_fl_key_ls *ret_key_ls,
struct tc_cls_flower_offload *flow)
{
- struct flow_dissector_key_control *mask_enc_ctl;
- struct flow_dissector_key_basic *mask_basic;
- struct flow_dissector_key_basic *key_basic;
+ struct flow_dissector_key_basic *mask_basic = NULL;
+ struct flow_dissector_key_basic *key_basic = NULL;
+ struct flow_dissector_key_ip *mask_ip = NULL;
u32 key_layer_two;
u8 key_layer;
int key_size;
- mask_enc_ctl = skb_flow_dissector_target(flow->dissector,
- FLOW_DISSECTOR_KEY_ENC_CONTROL,
- flow->mask);
+ if (dissector_uses_key(flow->dissector,
+ FLOW_DISSECTOR_KEY_ENC_CONTROL)) {
+ struct flow_dissector_key_control *mask_enc_ctl =
+ skb_flow_dissector_target(flow->dissector,
+ FLOW_DISSECTOR_KEY_ENC_CONTROL,
+ flow->mask);
+ /* We are expecting a tunnel. For now we ignore offloading. */
+ if (mask_enc_ctl->addr_type)
+ return -EOPNOTSUPP;
+ }
- mask_basic = skb_flow_dissector_target(flow->dissector,
- FLOW_DISSECTOR_KEY_BASIC,
- flow->mask);
+ if (dissector_uses_key(flow->dissector, FLOW_DISSECTOR_KEY_BASIC)) {
+ mask_basic = skb_flow_dissector_target(flow->dissector,
+ FLOW_DISSECTOR_KEY_BASIC,
+ flow->mask);
+
+ key_basic = skb_flow_dissector_target(flow->dissector,
+ FLOW_DISSECTOR_KEY_BASIC,
+ flow->key);
+ }
+
+ if (dissector_uses_key(flow->dissector, FLOW_DISSECTOR_KEY_IP))
+ mask_ip = skb_flow_dissector_target(flow->dissector,
+ FLOW_DISSECTOR_KEY_IP,
+ flow->mask);
- key_basic = skb_flow_dissector_target(flow->dissector,
- FLOW_DISSECTOR_KEY_BASIC,
- flow->key);
key_layer_two = 0;
key_layer = NFP_FLOWER_LAYER_PORT | NFP_FLOWER_LAYER_MAC;
key_size = sizeof(struct nfp_flower_meta_one) +
sizeof(struct nfp_flower_in_port) +
sizeof(struct nfp_flower_mac_mpls);
- /* We are expecting a tunnel. For now we ignore offloading. */
- if (mask_enc_ctl->addr_type)
- return -EOPNOTSUPP;
-
- if (mask_basic->n_proto) {
+ if (mask_basic && mask_basic->n_proto) {
/* Ethernet type is present in the key. */
switch (key_basic->n_proto) {
case cpu_to_be16(ETH_P_IP):
+ if (mask_ip && mask_ip->tos)
+ return -EOPNOTSUPP;
+ if (mask_ip && mask_ip->ttl)
+ return -EOPNOTSUPP;
key_layer |= NFP_FLOWER_LAYER_IPV4;
key_size += sizeof(struct nfp_flower_ipv4);
break;
case cpu_to_be16(ETH_P_IPV6):
+ if (mask_ip && mask_ip->tos)
+ return -EOPNOTSUPP;
+ if (mask_ip && mask_ip->ttl)
+ return -EOPNOTSUPP;
key_layer |= NFP_FLOWER_LAYER_IPV6;
key_size += sizeof(struct nfp_flower_ipv6);
break;
@@ -152,6 +171,11 @@ nfp_flower_calculate_key_layers(struct nfp_fl_key_ls *ret_key_ls,
case cpu_to_be16(ETH_P_ARP):
return -EOPNOTSUPP;
+ /* Currently we do not offload MPLS. */
+ case cpu_to_be16(ETH_P_MPLS_UC):
+ case cpu_to_be16(ETH_P_MPLS_MC):
+ return -EOPNOTSUPP;
+
/* Will be included in layer 2. */
case cpu_to_be16(ETH_P_8021Q):
break;
@@ -166,7 +190,7 @@ nfp_flower_calculate_key_layers(struct nfp_fl_key_ls *ret_key_ls,
}
}
- if (mask_basic->ip_proto) {
+ if (mask_basic && mask_basic->ip_proto) {
/* Ethernet type is present in the key. */
switch (key_basic->ip_proto) {
case IPPROTO_TCP: