core/lib/fs_chains.c

56 	u32 prio;
60 struct prio {
83 	.head_offset = offsetof(struct prio, node),
84 	.key_offset = offsetof(struct prio, key),
85 	.key_len = sizeof_field(struct prio, key),
153 			 u32 chain, u32 prio, u32 level)
173 	/* The root table(chain 0, prio 1, level 0) is required to be
174 	 * connected to the previous fs_core managed prio.
179 	    (chain == 0 && prio == 1 && level == 0)) {
181 		ft_attr.prio = chains->fs_base_prio + prio - 1;
187 		ft_attr.prio = chains->fs_base_prio;
203 		mlx5_core_warn(chains->dev, "Failed to create chains table err %d (chain: %d, prio: %d, level: %d, size: %d)\n",
204 			       (int)PTR_ERR(ft), chain, prio, level, sz);
395 mlx5_chains_update_prio_prevs(struct prio *prio,
399 	struct fs_chain *chain = prio->chain;
400 	struct prio *pos;
403 	if (prio->key.level)
410 	pos = prio;
429 	pos = prio;
459 static struct prio *
461 			u32 chain, u32 prio, u32 level)
470 	struct prio *prio_s;
485 	/* Chain's prio list is sorted by prio and level.
486 	 * And all levels of some prio point to the next prio's level 0.
487 	 * Example list (prio, level):
501 		struct prio *p = list_entry(pos, struct prio, list);
504 		if (prio < p->key.prio || (prio == p->key.prio &&
512 	ft = mlx5_chains_create_table(chains, chain, prio, level);
540 	prio_s->key.prio = prio;
579 			 struct prio *prio)
581 	struct fs_chain *chain = prio->chain;
583 	WARN_ON(mlx5_chains_update_prio_prevs(prio,
584 					      prio->next_ft));
586 	list_del(&prio->list);
587 	rhashtable_remove_fast(&prios_ht(chains), &prio->node,
589 	mlx5_del_flow_rules(prio->miss_rule);
590 	mlx5_destroy_flow_group(prio->miss_group);
591 	mlx5_destroy_flow_table(prio->ft);
593 	kvfree(prio);
597 mlx5_chains_get_table(struct mlx5_fs_chains *chains, u32 chain, u32 prio,
601 	struct prio *prio_s;
607 	    prio > mlx5_chains_get_prio_range(chains) ||
615 		prev_fts = mlx5_chains_get_table(chains, chain, prio, l);
623 	key.prio = prio;
631 						 prio, level);
645 		mlx5_chains_put_table(chains, chain, prio, l);
650 mlx5_chains_put_table(struct mlx5_fs_chains *chains, u32 chain, u32 prio,
653 	struct prio *prio_s;
657 	key.prio = prio;
671 		mlx5_chains_put_table(chains, chain, prio, level);
678 		  "Couldn't find table: (chain: %d prio: %d level: %d)",
679 		  chain, prio, level);
691 	u32 chain, prio, level;
703 	prio = mlx5_chains_get_prio_range(chains);
706 	return mlx5_chains_create_table(chains, chain, prio, level);