diff options
Diffstat (limited to 'drivers/net/ethernet/microchip/lan966x/lan966x_tc_flower.c')
| -rw-r--r-- | drivers/net/ethernet/microchip/lan966x/lan966x_tc_flower.c | 221 |
1 files changed, 210 insertions, 11 deletions
diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_tc_flower.c b/drivers/net/ethernet/microchip/lan966x/lan966x_tc_flower.c index f960727ecaee..47b2f7579dd2 100644 --- a/drivers/net/ethernet/microchip/lan966x/lan966x_tc_flower.c +++ b/drivers/net/ethernet/microchip/lan966x/lan966x_tc_flower.c @@ -5,14 +5,34 @@ #include "vcap_api_client.h" #include "vcap_tc.h" -static bool lan966x_tc_is_known_etype(u16 etype) +static bool lan966x_tc_is_known_etype(struct vcap_tc_flower_parse_usage *st, + u16 etype) { - switch (etype) { - case ETH_P_ALL: - case ETH_P_ARP: - case ETH_P_IP: - case ETH_P_IPV6: - return true; + switch (st->admin->vtype) { + case VCAP_TYPE_IS1: + switch (etype) { + case ETH_P_ALL: + case ETH_P_ARP: + case ETH_P_IP: + case ETH_P_IPV6: + return true; + } + break; + case VCAP_TYPE_IS2: + switch (etype) { + case ETH_P_ALL: + case ETH_P_ARP: + case ETH_P_IP: + case ETH_P_IPV6: + case ETH_P_SNAP: + case ETH_P_802_2: + return true; + } + break; + default: + NL_SET_ERR_MSG_MOD(st->fco->common.extack, + "VCAP type not supported"); + return false; } return false; @@ -69,7 +89,7 @@ lan966x_tc_flower_handler_basic_usage(struct vcap_tc_flower_parse_usage *st) flow_rule_match_basic(st->frule, &match); if (match.mask->n_proto) { st->l3_proto = be16_to_cpu(match.key->n_proto); - if (!lan966x_tc_is_known_etype(st->l3_proto)) { + if (!lan966x_tc_is_known_etype(st, st->l3_proto)) { err = vcap_rule_add_key_u32(st->vrule, VCAP_KF_ETYPE, st->l3_proto, ~0); if (err) @@ -79,18 +99,61 @@ lan966x_tc_flower_handler_basic_usage(struct vcap_tc_flower_parse_usage *st) VCAP_BIT_1); if (err) goto out; + } else if (st->l3_proto == ETH_P_IPV6 && + st->admin->vtype == VCAP_TYPE_IS1) { + /* Don't set any keys in this case */ + } else if (st->l3_proto == ETH_P_SNAP && + st->admin->vtype == VCAP_TYPE_IS1) { + err = vcap_rule_add_key_bit(st->vrule, + VCAP_KF_ETYPE_LEN_IS, + VCAP_BIT_0); + if (err) + goto out; + + err = vcap_rule_add_key_bit(st->vrule, + VCAP_KF_IP_SNAP_IS, + VCAP_BIT_1); + if (err) + goto out; + } else if (st->admin->vtype == VCAP_TYPE_IS1) { + err = vcap_rule_add_key_bit(st->vrule, + VCAP_KF_ETYPE_LEN_IS, + VCAP_BIT_1); + if (err) + goto out; + + err = vcap_rule_add_key_u32(st->vrule, VCAP_KF_ETYPE, + st->l3_proto, ~0); + if (err) + goto out; } } if (match.mask->ip_proto) { st->l4_proto = match.key->ip_proto; if (st->l4_proto == IPPROTO_TCP) { + if (st->admin->vtype == VCAP_TYPE_IS1) { + err = vcap_rule_add_key_bit(st->vrule, + VCAP_KF_TCP_UDP_IS, + VCAP_BIT_1); + if (err) + goto out; + } + err = vcap_rule_add_key_bit(st->vrule, VCAP_KF_TCP_IS, VCAP_BIT_1); if (err) goto out; } else if (st->l4_proto == IPPROTO_UDP) { + if (st->admin->vtype == VCAP_TYPE_IS1) { + err = vcap_rule_add_key_bit(st->vrule, + VCAP_KF_TCP_UDP_IS, + VCAP_BIT_1); + if (err) + goto out; + } + err = vcap_rule_add_key_bit(st->vrule, VCAP_KF_TCP_IS, VCAP_BIT_0); @@ -113,11 +176,29 @@ out: } static int +lan966x_tc_flower_handler_cvlan_usage(struct vcap_tc_flower_parse_usage *st) +{ + if (st->admin->vtype != VCAP_TYPE_IS1) { + NL_SET_ERR_MSG_MOD(st->fco->common.extack, + "cvlan not supported in this VCAP"); + return -EINVAL; + } + + return vcap_tc_flower_handler_cvlan_usage(st); +} + +static int lan966x_tc_flower_handler_vlan_usage(struct vcap_tc_flower_parse_usage *st) { - return vcap_tc_flower_handler_vlan_usage(st, - VCAP_KF_8021Q_VID_CLS, - VCAP_KF_8021Q_PCP_CLS); + enum vcap_key_field vid_key = VCAP_KF_8021Q_VID_CLS; + enum vcap_key_field pcp_key = VCAP_KF_8021Q_PCP_CLS; + + if (st->admin->vtype == VCAP_TYPE_IS1) { + vid_key = VCAP_KF_8021Q_VID0; + pcp_key = VCAP_KF_8021Q_PCP0; + } + + return vcap_tc_flower_handler_vlan_usage(st, vid_key, pcp_key); } static int @@ -128,6 +209,7 @@ static int [FLOW_DISSECTOR_KEY_CONTROL] = lan966x_tc_flower_handler_control_usage, [FLOW_DISSECTOR_KEY_PORTS] = vcap_tc_flower_handler_portnum_usage, [FLOW_DISSECTOR_KEY_BASIC] = lan966x_tc_flower_handler_basic_usage, + [FLOW_DISSECTOR_KEY_CVLAN] = lan966x_tc_flower_handler_cvlan_usage, [FLOW_DISSECTOR_KEY_VLAN] = lan966x_tc_flower_handler_vlan_usage, [FLOW_DISSECTOR_KEY_TCP] = vcap_tc_flower_handler_tcp_usage, [FLOW_DISSECTOR_KEY_ARP] = vcap_tc_flower_handler_arp_usage, @@ -143,6 +225,7 @@ static int lan966x_tc_flower_use_dissectors(struct flow_cls_offload *f, .fco = f, .vrule = vrule, .l3_proto = ETH_P_ALL, + .admin = admin, }; int err = 0; @@ -221,6 +304,100 @@ static int lan966x_tc_flower_action_check(struct vcap_control *vctrl, return 0; } +/* Add the actionset that is the default for the VCAP type */ +static int lan966x_tc_set_actionset(struct vcap_admin *admin, + struct vcap_rule *vrule) +{ + enum vcap_actionfield_set aset; + int err = 0; + + switch (admin->vtype) { + case VCAP_TYPE_IS1: + aset = VCAP_AFS_S1; + break; + case VCAP_TYPE_IS2: + aset = VCAP_AFS_BASE_TYPE; + break; + default: + return -EINVAL; + } + + /* Do not overwrite any current actionset */ + if (vrule->actionset == VCAP_AFS_NO_VALUE) + err = vcap_set_rule_set_actionset(vrule, aset); + + return err; +} + +static int lan966x_tc_add_rule_link_target(struct vcap_admin *admin, + struct vcap_rule *vrule, + int target_cid) +{ + int link_val = target_cid % VCAP_CID_LOOKUP_SIZE; + int err; + + if (!link_val) + return 0; + + switch (admin->vtype) { + case VCAP_TYPE_IS1: + /* Choose IS1 specific NXT_IDX key (for chaining rules from IS1) */ + err = vcap_rule_add_key_u32(vrule, VCAP_KF_LOOKUP_GEN_IDX_SEL, + 1, ~0); + if (err) + return err; + + return vcap_rule_add_key_u32(vrule, VCAP_KF_LOOKUP_GEN_IDX, + link_val, ~0); + case VCAP_TYPE_IS2: + /* Add IS2 specific PAG key (for chaining rules from IS1) */ + return vcap_rule_add_key_u32(vrule, VCAP_KF_LOOKUP_PAG, + link_val, ~0); + default: + break; + } + return 0; +} + +static int lan966x_tc_add_rule_link(struct vcap_control *vctrl, + struct vcap_admin *admin, + struct vcap_rule *vrule, + struct flow_cls_offload *f, + int to_cid) +{ + struct vcap_admin *to_admin = vcap_find_admin(vctrl, to_cid); + int diff, err = 0; + + if (!to_admin) { + NL_SET_ERR_MSG_MOD(f->common.extack, + "Unknown destination chain"); + return -EINVAL; + } + + diff = vcap_chain_offset(vctrl, f->common.chain_index, to_cid); + if (!diff) + return 0; + + /* Between IS1 and IS2 the PAG value is used */ + if (admin->vtype == VCAP_TYPE_IS1 && to_admin->vtype == VCAP_TYPE_IS2) { + /* This works for IS1->IS2 */ + err = vcap_rule_add_action_u32(vrule, VCAP_AF_PAG_VAL, diff); + if (err) + return err; + + err = vcap_rule_add_action_u32(vrule, VCAP_AF_PAG_OVERRIDE_MASK, + 0xff); + if (err) + return err; + } else { + NL_SET_ERR_MSG_MOD(f->common.extack, + "Unsupported chain destination"); + return -EOPNOTSUPP; + } + + return err; +} + static int lan966x_tc_flower_add(struct lan966x_port *port, struct flow_cls_offload *f, struct vcap_admin *admin, @@ -248,11 +425,23 @@ static int lan966x_tc_flower_add(struct lan966x_port *port, if (err) goto out; + err = lan966x_tc_add_rule_link_target(admin, vrule, + f->common.chain_index); + if (err) + goto out; + frule = flow_cls_offload_flow_rule(f); flow_action_for_each(idx, act, &frule->action) { switch (act->id) { case FLOW_ACTION_TRAP: + if (admin->vtype != VCAP_TYPE_IS2) { + NL_SET_ERR_MSG_MOD(f->common.extack, + "Trap action not supported in this VCAP"); + err = -EOPNOTSUPP; + goto out; + } + err = vcap_rule_add_action_bit(vrule, VCAP_AF_CPU_COPY_ENA, VCAP_BIT_1); @@ -266,6 +455,16 @@ static int lan966x_tc_flower_add(struct lan966x_port *port, break; case FLOW_ACTION_GOTO: + err = lan966x_tc_set_actionset(admin, vrule); + if (err) + goto out; + + err = lan966x_tc_add_rule_link(port->lan966x->vcap_ctrl, + admin, vrule, + f, act->chain_index); + if (err) + goto out; + break; default: NL_SET_ERR_MSG_MOD(f->common.extack, |