f-stack/dpdk/drivers/net/bnxt/tf_ulp/bnxt_ulp_flow.c

/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2014-2021 Broadcom
 * All rights reserved.
 */

#include "bnxt.h"
#include "bnxt_tf_common.h"
#include "ulp_rte_parser.h"
#include "ulp_matcher.h"
#include "ulp_flow_db.h"
#include "ulp_mapper.h"
#include "ulp_fc_mgr.h"
#include "ulp_port_db.h"
#include "ulp_ha_mgr.h"
#include "ulp_tun.h"
#include <rte_malloc.h>

static int32_t
bnxt_ulp_flow_validate_args(const struct rte_flow_attr *attr,
			    const struct rte_flow_item pattern[],
			    const struct rte_flow_action actions[],
			    struct rte_flow_error *error)
{
	/* Perform the validation of the arguments for null */
	if (!error)
		return BNXT_TF_RC_ERROR;

	if (!pattern) {
		rte_flow_error_set(error,
				   EINVAL,
				   RTE_FLOW_ERROR_TYPE_ITEM_NUM,
				   NULL,
				   "NULL pattern.");
		return BNXT_TF_RC_ERROR;
	}

	if (!actions) {
		rte_flow_error_set(error,
				   EINVAL,
				   RTE_FLOW_ERROR_TYPE_ACTION_NUM,
				   NULL,
				   "NULL action.");
		return BNXT_TF_RC_ERROR;
	}

	if (!attr) {
		rte_flow_error_set(error,
				   EINVAL,
				   RTE_FLOW_ERROR_TYPE_ATTR,
				   NULL,
				   "NULL attribute.");
		return BNXT_TF_RC_ERROR;
	}

	if (attr->egress && attr->ingress) {
		rte_flow_error_set(error,
				   EINVAL,
				   RTE_FLOW_ERROR_TYPE_ATTR,
				   attr,
				   "EGRESS AND INGRESS UNSUPPORTED");
		return BNXT_TF_RC_ERROR;
	}
	return BNXT_TF_RC_SUCCESS;
}

static inline void
bnxt_ulp_set_dir_attributes(struct ulp_rte_parser_params *params,
			    const struct rte_flow_attr *attr)
{
	/* Set the flow attributes */
	if (attr->egress)
		params->dir_attr |= BNXT_ULP_FLOW_ATTR_EGRESS;
	if (attr->ingress)
		params->dir_attr |= BNXT_ULP_FLOW_ATTR_INGRESS;
#if RTE_VERSION_NUM(17, 11, 10, 16) < RTE_VERSION
	if (attr->transfer)
		params->dir_attr |= BNXT_ULP_FLOW_ATTR_TRANSFER;
#endif
}

void
bnxt_ulp_init_mapper_params(struct bnxt_ulp_mapper_create_parms *mapper_cparms,
			    struct ulp_rte_parser_params *params,
			    enum bnxt_ulp_fdb_type flow_type)
{
	uint32_t ulp_flags = 0;

	memset(mapper_cparms, 0, sizeof(*mapper_cparms));
	mapper_cparms->flow_type = flow_type;
	mapper_cparms->app_priority = params->priority;
	mapper_cparms->dir_attr = params->dir_attr;
	mapper_cparms->class_tid = params->class_id;
	mapper_cparms->act_tid = params->act_tmpl;
	mapper_cparms->func_id = params->func_id;
	mapper_cparms->hdr_bitmap = &params->hdr_bitmap;
	mapper_cparms->enc_hdr_bitmap = &params->enc_hdr_bitmap;
	mapper_cparms->hdr_field = params->hdr_field;
	mapper_cparms->enc_field = params->enc_field;
	mapper_cparms->comp_fld = params->comp_fld;
	mapper_cparms->act = &params->act_bitmap;
	mapper_cparms->act_prop = &params->act_prop;
	mapper_cparms->flow_id = params->fid;
	mapper_cparms->parent_flow = params->parent_flow;
	mapper_cparms->child_flow = params->child_flow;
	mapper_cparms->fld_bitmap = &params->fld_bitmap;
	mapper_cparms->flow_pattern_id = params->flow_pattern_id;
	mapper_cparms->act_pattern_id = params->act_pattern_id;
	mapper_cparms->app_id = params->app_id;
	mapper_cparms->port_id = params->port_id;
	mapper_cparms->tun_idx = params->tun_idx;

	/* update the signature fields into the computed field list */
	ULP_COMP_FLD_IDX_WR(params, BNXT_ULP_CF_IDX_HDR_SIG_ID,
			    params->hdr_sig_id);
	ULP_COMP_FLD_IDX_WR(params, BNXT_ULP_CF_IDX_FLOW_SIG_ID,
			    params->flow_sig_id);

	if (bnxt_ulp_cntxt_ptr2_ulp_flags_get(params->ulp_ctx, &ulp_flags))
		return;

	/* update the WC Priority flag */
	if (ULP_HIGH_AVAIL_IS_ENABLED(ulp_flags)) {
		enum ulp_ha_mgr_region region = ULP_HA_REGION_LOW;
		int32_t rc;

		rc = ulp_ha_mgr_region_get(params->ulp_ctx, &region);
		if (rc)
			BNXT_TF_DBG(ERR, "Unable to get WC region\n");
		if (region == ULP_HA_REGION_HI)
			ULP_COMP_FLD_IDX_WR(params,
					    BNXT_ULP_CF_IDX_WC_IS_HA_HIGH_REG,
					    1);
	}

	/* Update the socket direct flag */
	if (ULP_BITMAP_ISSET(params->hdr_bitmap.bits,
			     BNXT_ULP_HDR_BIT_SVIF_IGNORE)) {
		uint32_t ifindex;
		uint16_t vport;

		/* Get the port db ifindex */
		if (ulp_port_db_dev_port_to_ulp_index(params->ulp_ctx,
						      params->port_id,
						      &ifindex)) {
			BNXT_TF_DBG(ERR, "Invalid port id %u\n",
				    params->port_id);
			return;
		}
		/* Update the phy port of the other interface */
		if (ulp_port_db_vport_get(params->ulp_ctx, ifindex, &vport)) {
			BNXT_TF_DBG(ERR, "Invalid port if index %u\n", ifindex);
			return;
		}
		ULP_COMP_FLD_IDX_WR(params, BNXT_ULP_CF_IDX_SOCKET_DIRECT_VPORT,
				    (vport == 1) ? 2 : 1);
	}
}

/* Function to create the rte flow. */
static struct rte_flow *
bnxt_ulp_flow_create(struct rte_eth_dev *dev,
		     const struct rte_flow_attr *attr,
		     const struct rte_flow_item pattern[],
		     const struct rte_flow_action actions[],
		     struct rte_flow_error *error)
{
	struct bnxt_ulp_mapper_create_parms mapper_cparms = { 0 };
	struct ulp_rte_parser_params params;
	struct bnxt_ulp_context *ulp_ctx;
	int rc, ret = BNXT_TF_RC_ERROR;
	struct rte_flow *flow_id;
	uint16_t func_id;
	uint32_t fid;

	if (bnxt_ulp_flow_validate_args(attr,
					pattern, actions,
					error) == BNXT_TF_RC_ERROR) {
		BNXT_TF_DBG(ERR, "Invalid arguments being passed\n");
		goto flow_error;
	}

	ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(dev);
	if (!ulp_ctx) {
		BNXT_TF_DBG(ERR, "ULP context is not initialized\n");
		goto flow_error;
	}

	/* Initialize the parser params */
	memset(&params, 0, sizeof(struct ulp_rte_parser_params));
	params.ulp_ctx = ulp_ctx;

	if (bnxt_ulp_cntxt_app_id_get(params.ulp_ctx, &params.app_id)) {
		BNXT_TF_DBG(ERR, "failed to get the app id\n");
		goto flow_error;
	}

	/* Set the flow attributes */
	bnxt_ulp_set_dir_attributes(&params, attr);

	/* copy the device port id and direction for further processing */
	ULP_COMP_FLD_IDX_WR(&params, BNXT_ULP_CF_IDX_INCOMING_IF,
			    dev->data->port_id);
	ULP_COMP_FLD_IDX_WR(&params, BNXT_ULP_CF_IDX_DEV_PORT_ID,
			    dev->data->port_id);
	ULP_COMP_FLD_IDX_WR(&params, BNXT_ULP_CF_IDX_SVIF_FLAG,
			    BNXT_ULP_INVALID_SVIF_VAL);

	/* Get the function id */
	if (ulp_port_db_port_func_id_get(ulp_ctx,
					 dev->data->port_id,
					 &func_id)) {
		BNXT_TF_DBG(ERR, "conversion of port to func id failed\n");
		goto flow_error;
	}

	/* Protect flow creation */
	if (bnxt_ulp_cntxt_acquire_fdb_lock(ulp_ctx)) {
		BNXT_TF_DBG(ERR, "Flow db lock acquire failed\n");
		goto flow_error;
	}

	/* Allocate a Flow ID for attaching all resources for the flow to.
	 * Once allocated, all errors have to walk the list of resources and
	 * free each of them.
	 */
	rc = ulp_flow_db_fid_alloc(ulp_ctx, BNXT_ULP_FDB_TYPE_REGULAR,
				   func_id, &fid);
	if (rc) {
		BNXT_TF_DBG(ERR, "Unable to allocate flow table entry\n");
		goto release_lock;
	}

	/* Parse the rte flow pattern */
	ret = bnxt_ulp_rte_parser_hdr_parse(pattern, &params);
	if (ret != BNXT_TF_RC_SUCCESS)
		goto free_fid;

	/* Parse the rte flow action */
	ret = bnxt_ulp_rte_parser_act_parse(actions, &params);
	if (ret != BNXT_TF_RC_SUCCESS)
		goto free_fid;

	params.fid = fid;
	params.func_id = func_id;
	params.priority = attr->priority;
	params.port_id = dev->data->port_id;

	/* Perform the rte flow post process */
	bnxt_ulp_rte_parser_post_process(&params);

	/* do the tunnel offload process if any */
	ret = ulp_tunnel_offload_process(&params);
	if (ret == BNXT_TF_RC_ERROR)
		goto free_fid;

	ret = ulp_matcher_pattern_match(&params, &params.class_id);
	if (ret != BNXT_TF_RC_SUCCESS)
		goto free_fid;

	ret = ulp_matcher_action_match(&params, &params.act_tmpl);
	if (ret != BNXT_TF_RC_SUCCESS)
		goto free_fid;

	bnxt_ulp_init_mapper_params(&mapper_cparms, &params,
				    BNXT_ULP_FDB_TYPE_REGULAR);
	/* Call the ulp mapper to create the flow in the hardware. */
	ret = ulp_mapper_flow_create(ulp_ctx, &mapper_cparms);
	if (ret)
		goto free_fid;

	bnxt_ulp_cntxt_release_fdb_lock(ulp_ctx);

	flow_id = (struct rte_flow *)((uintptr_t)fid);
	return flow_id;

free_fid:
	ulp_flow_db_fid_free(ulp_ctx, BNXT_ULP_FDB_TYPE_REGULAR, fid);
release_lock:
	bnxt_ulp_cntxt_release_fdb_lock(ulp_ctx);
flow_error:
	rte_flow_error_set(error, ret, RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
			   "Failed to create flow.");
	return NULL;
}

/* Function to validate the rte flow. */
static int
bnxt_ulp_flow_validate(struct rte_eth_dev *dev,
		       const struct rte_flow_attr *attr,
		       const struct rte_flow_item pattern[],
		       const struct rte_flow_action actions[],
		       struct rte_flow_error *error)
{
	struct ulp_rte_parser_params params;
	struct bnxt_ulp_context *ulp_ctx;
	uint32_t class_id, act_tmpl;
	int ret = BNXT_TF_RC_ERROR;

	if (bnxt_ulp_flow_validate_args(attr,
					pattern, actions,
					error) == BNXT_TF_RC_ERROR) {
		BNXT_TF_DBG(ERR, "Invalid arguments being passed\n");
		goto parse_error;
	}

	ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(dev);
	if (!ulp_ctx) {
		BNXT_TF_DBG(ERR, "ULP context is not initialized\n");
		goto parse_error;
	}

	/* Initialize the parser params */
	memset(&params, 0, sizeof(struct ulp_rte_parser_params));
	params.ulp_ctx = ulp_ctx;

	if (bnxt_ulp_cntxt_app_id_get(params.ulp_ctx, &params.app_id)) {
		BNXT_TF_DBG(ERR, "failed to get the app id\n");
		goto parse_error;
	}

	/* Set the flow attributes */
	bnxt_ulp_set_dir_attributes(&params, attr);

	/* Parse the rte flow pattern */
	ret = bnxt_ulp_rte_parser_hdr_parse(pattern, &params);
	if (ret != BNXT_TF_RC_SUCCESS)
		goto parse_error;

	/* Parse the rte flow action */
	ret = bnxt_ulp_rte_parser_act_parse(actions, &params);
	if (ret != BNXT_TF_RC_SUCCESS)
		goto parse_error;

	/* Perform the rte flow post process */
	bnxt_ulp_rte_parser_post_process(&params);

	/* do the tunnel offload process if any */
	ret = ulp_tunnel_offload_process(&params);
	if (ret == BNXT_TF_RC_ERROR)
		goto parse_error;

	ret = ulp_matcher_pattern_match(&params, &class_id);

	if (ret != BNXT_TF_RC_SUCCESS)
		goto parse_error;

	ret = ulp_matcher_action_match(&params, &act_tmpl);
	if (ret != BNXT_TF_RC_SUCCESS)
		goto parse_error;

	/* all good return success */
	return ret;

parse_error:
	rte_flow_error_set(error, ret, RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
			   "Failed to validate flow.");
	return -EINVAL;
}

/* Function to destroy the rte flow. */
int
bnxt_ulp_flow_destroy(struct rte_eth_dev *dev,
		      struct rte_flow *flow,
		      struct rte_flow_error *error)
{
	struct bnxt_ulp_context *ulp_ctx;
	uint32_t flow_id;
	uint16_t func_id;
	int ret;

	ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(dev);
	if (!ulp_ctx) {
		BNXT_TF_DBG(ERR, "ULP context is not initialized\n");
		if (error)
			rte_flow_error_set(error, EINVAL,
					   RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
					   "Failed to destroy flow.");
		return -EINVAL;
	}

	flow_id = (uint32_t)(uintptr_t)flow;

	if (ulp_port_db_port_func_id_get(ulp_ctx,
					 dev->data->port_id,
					 &func_id)) {
		BNXT_TF_DBG(ERR, "conversion of port to func id failed\n");
		if (error)
			rte_flow_error_set(error, EINVAL,
					   RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
					   "Failed to destroy flow.");
		return -EINVAL;
	}

	if (ulp_flow_db_validate_flow_func(ulp_ctx, flow_id, func_id) ==
	    false) {
		BNXT_TF_DBG(ERR, "Incorrect device params\n");
		if (error)
			rte_flow_error_set(error, EINVAL,
					   RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
					   "Failed to destroy flow.");
		return -EINVAL;
	}

	if (bnxt_ulp_cntxt_acquire_fdb_lock(ulp_ctx)) {
		BNXT_TF_DBG(ERR, "Flow db lock acquire failed\n");
		return -EINVAL;
	}
	ret = ulp_mapper_flow_destroy(ulp_ctx, BNXT_ULP_FDB_TYPE_REGULAR,
				      flow_id);
	if (ret) {
		BNXT_TF_DBG(ERR, "Failed to destroy flow.\n");
		if (error)
			rte_flow_error_set(error, -ret,
					   RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
					   "Failed to destroy flow.");
	}
	bnxt_ulp_cntxt_release_fdb_lock(ulp_ctx);

	return ret;
}

/* Function to destroy the rte flows. */
static int32_t
bnxt_ulp_flow_flush(struct rte_eth_dev *eth_dev,
		    struct rte_flow_error *error)
{
	struct bnxt_ulp_context *ulp_ctx;
	int32_t ret = 0;
	uint16_t func_id;

	ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(eth_dev);
	if (!ulp_ctx) {
		return ret;
	}

	/* Free the resources for the last device */
	if (ulp_ctx_deinit_allowed(ulp_ctx)) {
		ret = ulp_flow_db_session_flow_flush(ulp_ctx);
	} else if (bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctx)) {
		ret = ulp_port_db_port_func_id_get(ulp_ctx,
						   eth_dev->data->port_id,
						   &func_id);
		if (!ret)
			ret = ulp_flow_db_function_flow_flush(ulp_ctx, func_id);
		else
			BNXT_TF_DBG(ERR, "convert port to func id failed\n");
	}
	if (ret)
		rte_flow_error_set(error, ret,
				   RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
				   "Failed to flush flow.");
	return ret;
}

/* Function to query the rte flows. */
static int32_t
bnxt_ulp_flow_query(struct rte_eth_dev *eth_dev,
		    struct rte_flow *flow,
		    const struct rte_flow_action *action,
		    void *data,
		    struct rte_flow_error *error)
{
	int rc = 0;
	struct bnxt_ulp_context *ulp_ctx;
	struct rte_flow_query_count *count;
	uint32_t flow_id;

	ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(eth_dev);
	if (!ulp_ctx) {
		BNXT_TF_DBG(ERR, "ULP context is not initialized\n");
		rte_flow_error_set(error, EINVAL,
				   RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
				   "Failed to query flow.");
		return -EINVAL;
	}

	flow_id = (uint32_t)(uintptr_t)flow;

	switch (action->type) {
	case RTE_FLOW_ACTION_TYPE_COUNT:
		count = data;
		rc = ulp_fc_mgr_query_count_get(ulp_ctx, flow_id, count);
		if (rc) {
			rte_flow_error_set(error, EINVAL,
					   RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
					   "Failed to query flow.");
		}
		break;
	default:
		rte_flow_error_set(error, -rc, RTE_FLOW_ERROR_TYPE_ACTION_NUM,
				   NULL, "Unsupported action item");
	}

	return rc;
}

/* Tunnel offload Apis */
#define BNXT_ULP_TUNNEL_OFFLOAD_NUM_ITEMS	1

static int
bnxt_ulp_tunnel_decap_set(struct rte_eth_dev *eth_dev,
			  struct rte_flow_tunnel *tunnel,
			  struct rte_flow_action **pmd_actions,
			  uint32_t *num_of_actions,
			  struct rte_flow_error *error)
{
	struct bnxt_ulp_context *ulp_ctx;
	struct bnxt_flow_app_tun_ent *tun_entry;
	int32_t rc = 0;

	ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(eth_dev);
	if (ulp_ctx == NULL) {
		BNXT_TF_DBG(ERR, "ULP context is not initialized\n");
		rte_flow_error_set(error, EINVAL,
				   RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
				   "ULP context uninitialized");
		return -EINVAL;
	}

	if (tunnel == NULL) {
		BNXT_TF_DBG(ERR, "No tunnel specified\n");
		rte_flow_error_set(error, EINVAL,
				   RTE_FLOW_ERROR_TYPE_ATTR, NULL,
				   "no tunnel specified");
		return -EINVAL;
	}

	if (tunnel->type != RTE_FLOW_ITEM_TYPE_VXLAN) {
		BNXT_TF_DBG(ERR, "Tunnel type unsupported\n");
		rte_flow_error_set(error, EINVAL,
				   RTE_FLOW_ERROR_TYPE_ATTR, NULL,
				   "tunnel type unsupported");
		return -EINVAL;
	}

	rc = ulp_app_tun_search_entry(ulp_ctx, tunnel, &tun_entry);
	if (rc < 0) {
		rte_flow_error_set(error, EINVAL,
				   RTE_FLOW_ERROR_TYPE_ATTR, NULL,
				   "tunnel decap set failed");
		return -EINVAL;
	}

	rc = ulp_app_tun_entry_set_decap_action(tun_entry);
	if (rc < 0) {
		rte_flow_error_set(error, EINVAL,
				   RTE_FLOW_ERROR_TYPE_ATTR, NULL,
				   "tunnel decap set failed");
		return -EINVAL;
	}

	*pmd_actions = &tun_entry->action;
	*num_of_actions = BNXT_ULP_TUNNEL_OFFLOAD_NUM_ITEMS;
	return 0;
}

static int
bnxt_ulp_tunnel_match(struct rte_eth_dev *eth_dev,
		      struct rte_flow_tunnel *tunnel,
		      struct rte_flow_item **pmd_items,
		      uint32_t *num_of_items,
		      struct rte_flow_error *error)
{
	struct bnxt_ulp_context *ulp_ctx;
	struct bnxt_flow_app_tun_ent *tun_entry;
	int32_t rc = 0;

	ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(eth_dev);
	if (ulp_ctx == NULL) {
		BNXT_TF_DBG(ERR, "ULP context is not initialized\n");
		rte_flow_error_set(error, EINVAL,
				   RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
				   "ULP context uninitialized");
		return -EINVAL;
	}

	if (tunnel == NULL) {
		BNXT_TF_DBG(ERR, "No tunnel specified\n");
		rte_flow_error_set(error, EINVAL,
				   RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
				   "no tunnel specified");
		return -EINVAL;
	}

	if (tunnel->type != RTE_FLOW_ITEM_TYPE_VXLAN) {
		BNXT_TF_DBG(ERR, "Tunnel type unsupported\n");
		rte_flow_error_set(error, EINVAL,
				   RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
				   "tunnel type unsupported");
		return -EINVAL;
	}

	rc = ulp_app_tun_search_entry(ulp_ctx, tunnel, &tun_entry);
	if (rc < 0) {
		rte_flow_error_set(error, EINVAL,
				   RTE_FLOW_ERROR_TYPE_ATTR, NULL,
				   "tunnel match set failed");
		return -EINVAL;
	}

	rc = ulp_app_tun_entry_set_decap_item(tun_entry);
	if (rc < 0) {
		rte_flow_error_set(error, EINVAL,
				   RTE_FLOW_ERROR_TYPE_ATTR, NULL,
				   "tunnel match set failed");
		return -EINVAL;
	}

	*pmd_items = &tun_entry->item;
	*num_of_items = BNXT_ULP_TUNNEL_OFFLOAD_NUM_ITEMS;
	return 0;
}

static int
bnxt_ulp_tunnel_decap_release(struct rte_eth_dev *eth_dev,
			      struct rte_flow_action *pmd_actions,
			      uint32_t num_actions,
			      struct rte_flow_error *error)
{
	struct bnxt_ulp_context *ulp_ctx;
	struct bnxt_flow_app_tun_ent *tun_entry;
	const struct rte_flow_action *action_item = pmd_actions;

	ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(eth_dev);
	if (ulp_ctx == NULL) {
		BNXT_TF_DBG(ERR, "ULP context is not initialized\n");
		rte_flow_error_set(error, EINVAL,
				   RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
				   "ULP context uninitialized");
		return -EINVAL;
	}
	if (num_actions != BNXT_ULP_TUNNEL_OFFLOAD_NUM_ITEMS) {
		BNXT_TF_DBG(ERR, "num actions is invalid\n");
		rte_flow_error_set(error, EINVAL,
				   RTE_FLOW_ERROR_TYPE_ATTR, NULL,
				   "num actions is invalid");
		return -EINVAL;
	}
	while (action_item && action_item->type != RTE_FLOW_ACTION_TYPE_END) {
		if (action_item->type == (typeof(tun_entry->action.type))
		    BNXT_RTE_FLOW_ACTION_TYPE_VXLAN_DECAP) {
			tun_entry = ulp_app_tun_match_entry(ulp_ctx,
							    action_item->conf);
			ulp_app_tun_entry_delete(tun_entry);
		}
		action_item++;
	}
	return 0;
}

static int
bnxt_ulp_tunnel_item_release(struct rte_eth_dev *eth_dev,
			     struct rte_flow_item *pmd_items,
			     uint32_t num_items,
			     struct rte_flow_error *error)
{
	struct bnxt_ulp_context *ulp_ctx;
	struct bnxt_flow_app_tun_ent *tun_entry;

	ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(eth_dev);
	if (ulp_ctx == NULL) {
		BNXT_TF_DBG(ERR, "ULP context is not initialized\n");
		rte_flow_error_set(error, EINVAL,
				   RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
				   "ULP context uninitialized");
		return -EINVAL;
	}
	if (num_items != BNXT_ULP_TUNNEL_OFFLOAD_NUM_ITEMS) {
		BNXT_TF_DBG(ERR, "num items is invalid\n");
		rte_flow_error_set(error, EINVAL,
				   RTE_FLOW_ERROR_TYPE_ATTR, NULL,
				   "num items is invalid");
		return -EINVAL;
	}

	tun_entry = ulp_app_tun_match_entry(ulp_ctx, pmd_items->spec);
	ulp_app_tun_entry_delete(tun_entry);
	return 0;
}

const struct rte_flow_ops bnxt_ulp_rte_flow_ops = {
	.validate = bnxt_ulp_flow_validate,
	.create = bnxt_ulp_flow_create,
	.destroy = bnxt_ulp_flow_destroy,
	.flush = bnxt_ulp_flow_flush,
	.query = bnxt_ulp_flow_query,
	.isolate = NULL,
	/* Tunnel offload callbacks */
	.tunnel_decap_set = bnxt_ulp_tunnel_decap_set,
	.tunnel_match = bnxt_ulp_tunnel_match,
	.tunnel_action_decap_release = bnxt_ulp_tunnel_decap_release,
	.tunnel_item_release = bnxt_ulp_tunnel_item_release,
	.get_restore_info = NULL
};