/* SPDX-License-Identifier: GPL-2.0+ */

enum hwpa_backend_rv {
	HWPA_BACKEND_SUCCESS, /* required */

	HWPA_BACKEND_ERR_INTERNAL,
	HWPA_BACKEND_ERR_MULTIPLE_EGRESS,
	HWPA_BACKEND_ERR_NAT_CONFLICT,
	HWPA_BACKEND_ERR_ACT_CONFLICT,
	HWPA_BACKEND_ERR_PID_NODEV,
	HWPA_BACKEND_ERR_PID_UNREACHABLE,
	HWPA_BACKEND_ERR_VLAN_FULL,
	HWPA_BACKEND_ERR_VLAN_CONFLICT,
	HWPA_BACKEND_ERR_PPPOE_MODIFY,

	HWPA_BACKEND_ERR_GSW_REMOVE,
	HWPA_BACKEND_ERR_GSW_PCE_RULE,
	HWPA_BACKEND_ERR_GSW_CFG,
	HWPA_BACKEND_ERR_GSW_EGVLAN,
	HWPA_BACKEND_ERR_GSW_MTU_FULL,
	HWPA_BACKEND_ERR_GSW_PPPOE_FULL,
	HWPA_BACKEND_ERR_GSW_RTP_FULL,
	HWPA_BACKEND_ERR_GSW_IP_FULL,
	HWPA_BACKEND_ERR_GSW_MAC_FULL,
	HWPA_BACKEND_ERR_GSW_RT_SESS_FULL,
	HWPA_BACKEND_ERR_GSW_RT_COLL_FULL,
	HWPA_BACKEND_ERR_GSW_TUN,
	HWPA_BACKEND_ERR_GSW_UNKNOWN,

	HWPA_BACKEND_ERR_SESSION_MALFORMED,
	HWPA_BACKEND_ERR_HANDLE_INVALID,

	HWPA_BACKEND_ERR_LRO_FULL,

	HWPA_BACKEND_RV_LAST /* required */
};

#define HWPA_BACKEND_RV_DESC_INITIALIZER \
{\
	[HWPA_BACKEND_SUCCESS] = "success",\
\
	[HWPA_BACKEND_ERR_INTERNAL] = "internal error",\
	[HWPA_BACKEND_ERR_MULTIPLE_EGRESS] = "unsupported multicast",\
	[HWPA_BACKEND_ERR_NAT_CONFLICT] = "snat/dnat conflict",\
	[HWPA_BACKEND_ERR_ACT_CONFLICT] = "nat/pppoe/tun directional conflict",\
	[HWPA_BACKEND_ERR_PID_NODEV] = "pid without netdevice",\
	[HWPA_BACKEND_ERR_PID_UNREACHABLE] = "pid not known to datapath driver",\
	[HWPA_BACKEND_ERR_VLAN_FULL] = "vlan table full",\
	[HWPA_BACKEND_ERR_VLAN_CONFLICT] = "vlan subif mapping conflict",\
	[HWPA_BACKEND_ERR_PPPOE_MODIFY] = "unsupported PPPoE modification",\
\
	[HWPA_BACKEND_ERR_GSW_REMOVE] = "session remove fail",\
	[HWPA_BACKEND_ERR_GSW_PCE_RULE] = "PCE rule write/alloc fail",\
	[HWPA_BACKEND_ERR_GSW_CFG] = "switch configuration fail",\
	[HWPA_BACKEND_ERR_GSW_EGVLAN] = "error accessing EGVLAN",\
	[HWPA_BACKEND_ERR_GSW_MTU_FULL] = "MTU table full",\
	[HWPA_BACKEND_ERR_GSW_PPPOE_FULL] = "PPPoE table full",\
	[HWPA_BACKEND_ERR_GSW_RTP_FULL] = "RTP table full",\
	[HWPA_BACKEND_ERR_GSW_IP_FULL] = "IP table full",\
	[HWPA_BACKEND_ERR_GSW_MAC_FULL] = "MAC table full",\
	[HWPA_BACKEND_ERR_GSW_RT_SESS_FULL] = "Routing table full",\
	[HWPA_BACKEND_ERR_GSW_RT_COLL_FULL] = "Routing table collision limit",\
	[HWPA_BACKEND_ERR_GSW_TUN] = "Tunnel setup failed/unsupported",\
	[HWPA_BACKEND_ERR_GSW_UNKNOWN] = "unspecified switch_api error",\
\
	[HWPA_BACKEND_ERR_SESSION_MALFORMED] = "Unexpected avm_pa session structure",\
	[HWPA_BACKEND_ERR_HANDLE_INVALID] = "Invalid session handle",\
\
	[HWPA_BACKEND_ERR_LRO_FULL] = "LRO sessions full",\
}

/* No encapsulation for L2 frames */
#define HWPA_VALID_L3_L2ENCAP

#define HWPA_VALID_L3_L3ENCAP                                                  \
	/* dslite */                                                           \
	{ { .type = AVM_PA_IPV6 },                                             \
	  { .type = AVM_PA_IPV4 },                                             \
	  { .type = AVM_PA_PORTS },                                            \
	  { .type = AVM_PA_NUM_MATCH_TYPES } },                                \
                                                                               \
	/* 6rd */                                                              \
	{ { .type = AVM_PA_IPV4 },                                             \
	  { .type = AVM_PA_IPV6 },                                             \
	  { .type = AVM_PA_PORTS },                                            \
	  { .type = AVM_PA_NUM_MATCH_TYPES } },

int try_to_accelerate(avm_pid_handle pid_handle,
                                            struct sk_buff *skb);