core/steering/dr_ptrn.c

20 	struct mutex modify_hdr_mutex; /* protect the pattern cache */
64 			/* Put this pattern in the head of the list,
80 	struct mlx5dr_ptrn_obj *pattern;
97 	pattern = kzalloc(sizeof(*pattern), GFP_KERNEL);
98 	if (!pattern)
101 	pattern->data = kzalloc(num_of_actions * DR_MODIFY_ACTION_SIZE *
102 				sizeof(*pattern->data), GFP_KERNEL);
103 	if (!pattern->data)
106 	memcpy(pattern->data, data, num_of_actions * DR_MODIFY_ACTION_SIZE);
107 	pattern->chunk = chunk;
108 	pattern->index = index;
109 	pattern->num_of_actions = num_of_actions;
111 	list_add(&pattern->list, &mgr->ptrn_list);
112 	refcount_set(&pattern->refcount, 1);
114 	return pattern;
117 	kfree(pattern);
124 dr_ptrn_free_pattern(struct mlx5dr_ptrn_obj *pattern)
126 	list_del(&pattern->list);
127 	mlx5dr_icm_free_chunk(pattern->chunk);
128 	kfree(pattern->data);
129 	kfree(pattern);
137 	struct mlx5dr_ptrn_obj *pattern;
143 	pattern = dr_ptrn_find_cached_pattern(mgr,
146 	if (!pattern) {
147 		/* Alloc and add new pattern to cache */
148 		pattern = dr_ptrn_alloc_pattern(mgr, num_of_actions, data);
149 		if (!pattern)
152 		hw_actions = (u64 *)pattern->data;
153 		/* Here we mask the pattern data to create a valid pattern
154 		 * since we do an OR operation between the arg and pattern
165 		if (mlx5dr_send_postsend_pattern(mgr->dmn, pattern->chunk,
166 						 num_of_actions, pattern->data)) {
167 			refcount_dec(&pattern->refcount);
171 		refcount_inc(&pattern->refcount);
176 	return pattern;
179 	dr_ptrn_free_pattern(pattern);
187 			      struct mlx5dr_ptrn_obj *pattern)
191 	if (refcount_dec_and_test(&pattern->refcount))
192 		dr_ptrn_free_pattern(pattern);
211 		mlx5dr_err(dmn, "Couldn't get modify-header-pattern memory\n");
227 	struct mlx5dr_ptrn_obj *pattern;
235 	list_for_each_entry_safe(pattern, tmp, &mgr->ptrn_list, list) {
236 		list_del(&pattern->list);
237 		kfree(pattern->data);
238 		kfree(pattern);