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

enum hwpa_backend_rv {
	HWPA_BACKEND_SUCCESS, /* required */
	HWPA_BACKEND_ERR_INTERNAL,
	HWPA_BACKEND_ERR_TRACKER_LIMIT,
	HWPA_BACKEND_UNSUPPORTED_L4_PROTOCOL,
	HWPA_BACKEND_UNSUPPORTED_SESS_TYPE,
	HWPA_BACKEND_ERR_SUBSYS,
	HWPA_BACKEND_ERR_BAD_NET_DEV,
	HWPA_BACKEND_ERR_MEMORY,
	HWPA_BACKEND_ERR_SESS_CREATE,
	HWPA_BACKEND_ERR_CACHE,
	HWPA_BACKEND_ERR_SESS_REM,
	HWPA_BACKEND_ERR_BAD_HANDLE,
	HWPA_BACKEND_ERR_SYNC,
	HWPA_BACKEND_ERR_NO_NSS,
	HWPA_BACKEND_ERR_INVALID_SYNC,
	HWPA_BACKEND_ERR_MAGIC,
	HWPA_BACKEND_ERR_BAD_VLAN,
	HWPA_BACKEND_ERR_HW_WRITE,
	HWPA_BACKEND_ERR_BAD_PPPOE,
	HWPA_BACKEND_ERR_BAD_HIERARCHY,
	HWPA_BACKEND_ERR_BAD_NAT_MODE,
	HWPA_BACKEND_ERR_PROBE_FAILED,
	HWPA_BACKEND_ERR_FLUSHED_BY_AVM_PA,
	HWPA_BACKEND_ERR_HW_ACTIVATION,
	HWPA_BACKEND_ERR_BAD_MATCH,
	HWPA_BACKEND_ERR_BAD_OFFLOAD_STATE,
};

#define HWPA_BACKEND_RV_DESC_INITIALIZER \
{\
	[HWPA_BACKEND_SUCCESS] = "success",\
\
	[HWPA_BACKEND_ERR_INTERNAL] = "internal error",\
	[HWPA_BACKEND_ERR_TRACKER_LIMIT] = "NSS subsystem offloading limit reached",\
	[HWPA_BACKEND_UNSUPPORTED_L4_PROTOCOL] = "unsupported L4 protocol",\
	[HWPA_BACKEND_UNSUPPORTED_SESS_TYPE] = "unsupported session type",\
	[HWPA_BACKEND_ERR_SUBSYS] = "subsystem or offloader could not be obtained",\
	[HWPA_BACKEND_ERR_BAD_NET_DEV] = "bad net_device",\
	[HWPA_BACKEND_ERR_MEMORY] = "memory error",\
	[HWPA_BACKEND_ERR_SESS_CREATE] = "NSS offloading error",\
	[HWPA_BACKEND_ERR_CACHE] = "kmem cache error",\
	[HWPA_BACKEND_ERR_SESS_REM] = "NSS offloading removal error",\
	[HWPA_BACKEND_ERR_BAD_HANDLE] = "bad hwpa handle",\
	[HWPA_BACKEND_ERR_SYNC] = "sync error",\
	[HWPA_BACKEND_ERR_NO_NSS] = "no nss",\
	[HWPA_BACKEND_ERR_INVALID_SYNC] = "sync session not found",\
	[HWPA_BACKEND_ERR_MAGIC] = "bad magic",\
	[HWPA_BACKEND_ERR_HW_WRITE] = "failed to write rule to hw",\
	[HWPA_BACKEND_ERR_BAD_PPPOE] = "unsupported or bad pppoe",\
	[HWPA_BACKEND_ERR_BAD_HIERARCHY] = "bad hierarchy",\
	[HWPA_BACKEND_ERR_BAD_NAT_MODE] = "bad nat mode",\
	[HWPA_BACKEND_ERR_PROBE_FAILED] = "failed probe",\
	[HWPA_BACKEND_ERR_FLUSHED_BY_AVM_PA] = "flushed by avm_pa",\
	[HWPA_BACKEND_ERR_HW_ACTIVATION] = "failed to activate HW",\
	[HWPA_BACKEND_ERR_BAD_MATCH] = "bad or unsupported match",\
	[HWPA_BACKEND_ERR_BAD_OFFLOAD_STATE] = "bad offload state",\
}

#define HWPA_VALID_L2                                                          \
	{ { .type = AVM_PA_NUM_MATCH_TYPES } },                                \
									       \
	{ { .type = AVM_PA_ETH }, { .type = AVM_PA_NUM_MATCH_TYPES } },        \
									       \
	{ { .type = AVM_PA_ETH },                                              \
	  { .type = AVM_PA_VLAN },                                             \
	  { .type = AVM_PA_NUM_MATCH_TYPES } },                                \
									       \
	{ { .type = AVM_PA_ETH },                                              \
	  { .type = AVM_PA_PPPOE },                                            \
	  { .type = AVM_PA_PPP },                                              \
	  { .type = AVM_PA_NUM_MATCH_TYPES } },                                \
									       \
	{ { .type = AVM_PA_ETH },                                              \
	  { .type = AVM_PA_VLAN },                                             \
	  { .type = AVM_PA_PPPOE },                                            \
	  { .type = AVM_PA_PPP },                                              \
	  { .type = AVM_PA_NUM_MATCH_TYPES } },                                \


#define HWPA_VALID_L3                                                          \
	{ { .type = AVM_PA_IPV4 },                                             \
	  { .type = AVM_PA_PORTS },                                            \
	  { .type = AVM_PA_NUM_MATCH_TYPES }, },                               \
									       \
	{ { .type = AVM_PA_IPV6 },                                             \
	  { .type = AVM_PA_PORTS },                                            \
	  { .type = AVM_PA_NUM_MATCH_TYPES }, },                               \


/* No encapsulation yet */
#define HWPA_VALID_L3_L2ENCAP
#define HWPA_VALID_L3_L3ENCAP

#define HWPA_BESSIONS_ALLOWED 1

int alloc_rx_channel(avm_pid_handle pid_handle);
int alloc_tx_channel(avm_pid_handle pid_handle);
int free_rx_channel(avm_pid_handle pid_handle);
int free_tx_channel(avm_pid_handle pid_handle);
int try_to_accelerate(avm_pid_handle pid_handle,
		      struct sk_buff *skb);