mlx4/mlx4_ib/mlx4_ib_cm.c

135 static union ib_gid gid_from_req_msg(struct ib_device *ibdev, struct ib_mad *mad)
144 id_map_find_by_sl_id(struct ib_device *ibdev, u32 slave_id, u32 sl_cm_id)
146 	struct rb_root *sl_id_map = &to_mdev(ibdev)->sriov.sl_id_map;
192 static void id_map_find_del(struct ib_device *ibdev, int pv_cm_id)
194 	struct mlx4_ib_sriov *sriov = &to_mdev(ibdev)->sriov;
202 	found_ent = id_map_find_by_sl_id(ibdev, ent->slave_id, ent->sl_cm_id);
210 static void sl_id_map_add(struct ib_device *ibdev, struct id_map_entry *new)
212 	struct rb_root *sl_id_map = &to_mdev(ibdev)->sriov.sl_id_map;
218 	ent = id_map_find_by_sl_id(ibdev, slave_id, sl_cm_id);
243 id_map_alloc(struct ib_device *ibdev, int slave_id, u32 sl_cm_id)
247 	struct mlx4_ib_sriov *sriov = &to_mdev(ibdev)->sriov;
251 		mlx4_ib_warn(ibdev, "Couldn't allocate id cache entry - out of memory\n");
258 	ent->dev = to_mdev(ibdev);
262 	spin_lock(&to_mdev(ibdev)->sriov.id_map_lock);
267 		sl_id_map_add(ibdev, ent);
279 	mlx4_ib_warn(ibdev, "No more space in the idr (err:0x%x)\n", ret);
284 id_map_get(struct ib_device *ibdev, int *pv_cm_id, int sl_cm_id, int slave_id)
287 	struct mlx4_ib_sriov *sriov = &to_mdev(ibdev)->sriov;
291 		ent = id_map_find_by_sl_id(ibdev, sl_cm_id, slave_id);
301 static void schedule_delayed(struct ib_device *ibdev, struct id_map_entry *id)
303 	struct mlx4_ib_sriov *sriov = &to_mdev(ibdev)->sriov;
317 int mlx4_ib_multiplex_cm_handler(struct ib_device *ibdev, int port, int slave_id,
328 		id = id_map_alloc(ibdev, slave_id, sl_cm_id);
330 			mlx4_ib_warn(ibdev, "%s: id{slave: %d, sl_cm_id: 0x%x} Failed to id_map_alloc\n",
339 		id = id_map_get(ibdev, &pv_cm_id, slave_id, sl_cm_id);
351 		schedule_delayed(ibdev, id);
353 		id_map_find_del(ibdev, pv_cm_id);
358 int mlx4_ib_demux_cm_handler(struct ib_device *ibdev, int port, int *slave,
371 		gid = gid_from_req_msg(ibdev, mad);
372 		*slave = mlx4_ib_find_real_gid(ibdev, port, gid.global.interface_id);
374 			mlx4_ib_warn(ibdev, "failed matching slave_id by gid (0x%llx)\n",
382 	id = id_map_get(ibdev, (int *)&pv_cm_id, -1, -1);
394 		schedule_delayed(ibdev, id);
397 		id_map_find_del(ibdev, (int) pv_cm_id);