Function rte_efd_delete

dpdk/lib/efd/rte_efd.c:1182–1237

}

int
rte_efd_delete(struct rte_efd_table * const table, const unsigned int socket_id,
		const void *key, efd_value_t * const prev_value)
{
	unsigned int i;
	uint32_t chunk_id, bin_id;
	uint8_t not_found = 1;

	efd_compute_ids(table, key, &chunk_id, &bin_id);

	struct efd_offline_chunk_rules * const chunk =
			&table->offline_chunks[chunk_id];

	uint8_t current_choice = efd_get_choice(table, socket_id,
			chunk_id, bin_id);
	uint32_t current_group_id = efd_bin_to_group[current_choice][bin_id];
	struct efd_offline_group_rules * const current_group =
			&chunk->group_rules[current_group_id];

	/*
	 * Search the current group for the specified key.
	 * If it exists, remove it and re-pack the other values
	 */
	for (i = 0; i < current_group->num_rules; i++) {
		if (not_found) {
			/* Found key that needs to be removed */
			if (memcmp(EFD_KEY(current_group->key_idx[i], table),
					key, table->key_len) == 0) {
				/* Store previous value if requested by caller */
				if (prev_value != NULL)
					*prev_value = current_group->value[i];

				not_found = 0;
				rte_ring_sp_enqueue(table->free_slots,
					(void *)((uintptr_t)current_group->key_idx[i]));
			}
		} else {
			/*
			 * If the desired key has been found,
			 * need to shift other values up one
			 */

			/* Need to shift this entry back up one index */
			current_group->key_idx[i - 1] = current_group->key_idx[i];
			current_group->value[i - 1] = current_group->value[i];
			current_group->bin_id[i - 1] = current_group->bin_id[i];
		}
	}

	if (not_found == 0) {
		table->num_rules--;
		current_group->num_rules--;
	}

	return not_found;
}

static inline efd_value_t