diff options
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/flower/match.c')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/match.c | 73 |
1 files changed, 70 insertions, 3 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/flower/match.c b/drivers/net/ethernet/netronome/nfp/flower/match.c index f7f01e2e3dce..255a4dff6288 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/match.c +++ b/drivers/net/ethernet/netronome/nfp/flower/match.c @@ -10,7 +10,7 @@ static void nfp_flower_compile_meta_tci(struct nfp_flower_meta_tci *ext, struct nfp_flower_meta_tci *msk, - struct flow_rule *rule, u8 key_type) + struct flow_rule *rule, u8 key_type, bool qinq_sup) { u16 tmp_tci; @@ -24,7 +24,7 @@ nfp_flower_compile_meta_tci(struct nfp_flower_meta_tci *ext, msk->nfp_flow_key_layer = key_type; msk->mask_id = ~0; - if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_VLAN)) { + if (!qinq_sup && flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_VLAN)) { struct flow_match_vlan match; flow_rule_match_vlan(rule, &match); @@ -231,6 +231,50 @@ nfp_flower_compile_ip_ext(struct nfp_flower_ip_ext *ext, } static void +nfp_flower_fill_vlan(struct flow_dissector_key_vlan *key, + struct nfp_flower_vlan *frame, + bool outer_vlan) +{ + u16 tci; + + tci = NFP_FLOWER_MASK_VLAN_PRESENT; + tci |= FIELD_PREP(NFP_FLOWER_MASK_VLAN_PRIO, + key->vlan_priority) | + FIELD_PREP(NFP_FLOWER_MASK_VLAN_VID, + key->vlan_id); + + if (outer_vlan) { + frame->outer_tci = cpu_to_be16(tci); + frame->outer_tpid = key->vlan_tpid; + } else { + frame->inner_tci = cpu_to_be16(tci); + frame->inner_tpid = key->vlan_tpid; + } +} + +static void +nfp_flower_compile_vlan(struct nfp_flower_vlan *ext, + struct nfp_flower_vlan *msk, + struct flow_rule *rule) +{ + struct flow_match_vlan match; + + memset(ext, 0, sizeof(struct nfp_flower_vlan)); + memset(msk, 0, sizeof(struct nfp_flower_vlan)); + + if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_VLAN)) { + flow_rule_match_vlan(rule, &match); + nfp_flower_fill_vlan(match.key, ext, true); + nfp_flower_fill_vlan(match.mask, msk, true); + } + if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_CVLAN)) { + flow_rule_match_cvlan(rule, &match); + nfp_flower_fill_vlan(match.key, ext, false); + nfp_flower_fill_vlan(match.mask, msk, false); + } +} + +static void nfp_flower_compile_ipv4(struct nfp_flower_ipv4 *ext, struct nfp_flower_ipv4 *msk, struct flow_rule *rule) { @@ -433,7 +477,10 @@ int nfp_flower_compile_flow_match(struct nfp_app *app, struct netlink_ext_ack *extack) { struct flow_rule *rule = flow_cls_offload_flow_rule(flow); + struct nfp_flower_priv *priv = app->priv; + bool qinq_sup; u32 port_id; + int ext_len; int err; u8 *ext; u8 *msk; @@ -446,9 +493,11 @@ int nfp_flower_compile_flow_match(struct nfp_app *app, ext = nfp_flow->unmasked_data; msk = nfp_flow->mask_data; + qinq_sup = !!(priv->flower_ext_feats & NFP_FL_FEATS_VLAN_QINQ); + nfp_flower_compile_meta_tci((struct nfp_flower_meta_tci *)ext, (struct nfp_flower_meta_tci *)msk, - rule, key_ls->key_layer); + rule, key_ls->key_layer, qinq_sup); ext += sizeof(struct nfp_flower_meta_tci); msk += sizeof(struct nfp_flower_meta_tci); @@ -547,6 +596,14 @@ int nfp_flower_compile_flow_match(struct nfp_app *app, } } + if (NFP_FLOWER_LAYER2_QINQ & key_ls->key_layer_two) { + nfp_flower_compile_vlan((struct nfp_flower_vlan *)ext, + (struct nfp_flower_vlan *)msk, + rule); + ext += sizeof(struct nfp_flower_vlan); + msk += sizeof(struct nfp_flower_vlan); + } + if (key_ls->key_layer & NFP_FLOWER_LAYER_VXLAN || key_ls->key_layer_two & NFP_FLOWER_LAYER2_GENEVE) { if (key_ls->key_layer_two & NFP_FLOWER_LAYER2_TUN_IPV6) { @@ -589,5 +646,15 @@ int nfp_flower_compile_flow_match(struct nfp_app *app, } } + /* Check that the flow key does not exceed the maximum limit. + * All structures in the key is multiples of 4 bytes, so use u32. + */ + ext_len = (u32 *)ext - (u32 *)nfp_flow->unmasked_data; + if (ext_len > NFP_FLOWER_KEY_MAX_LW) { + NL_SET_ERR_MSG_MOD(extack, + "unsupported offload: flow key too long"); + return -EOPNOTSUPP; + } + return 0; } |