22 #define REG_STATE_NEW		0x0
23 #define REG_STATE_REGISTERED	0x1
24 #define REG_STATE_UNREGISTERED	0x2
25 #define REG_STATE_UNUSED	0x3
29 #define MEM_ID_MAX 0xFFFE
51 	const struct xdp_mem_allocator *xa = ptr;  in xdp_mem_id_cmp()  local
54 	return xa->mem.id != mem_id;  in xdp_mem_id_cmp()
71 	struct xdp_mem_allocator *xa;  in __xdp_mem_allocator_rcu_free()  local
73 	xa = container_of(rcu, struct xdp_mem_allocator, rcu);  in __xdp_mem_allocator_rcu_free()
76 	ida_simple_remove(&mem_id_pool, xa->mem.id);  in __xdp_mem_allocator_rcu_free()
78 	kfree(xa);  in __xdp_mem_allocator_rcu_free()
81 static void mem_xa_remove(struct xdp_mem_allocator *xa)  in mem_xa_remove()  argument
83 	trace_mem_disconnect(xa);  in mem_xa_remove()
85 	if (!rhashtable_remove_fast(mem_id_ht, &xa->node, mem_id_rht_params))  in mem_xa_remove()
86 		call_rcu(&xa->rcu, __xdp_mem_allocator_rcu_free);  in mem_xa_remove()
91 	struct xdp_mem_allocator *xa;  in mem_allocator_disconnect()  local
100 		while ((xa = rhashtable_walk_next(&iter)) && !IS_ERR(xa)) {  in mem_allocator_disconnect()
101 			if (xa->allocator == allocator)  in mem_allocator_disconnect()
102 				mem_xa_remove(xa);  in mem_allocator_disconnect()
107 	} while (xa == ERR_PTR(-EAGAIN));  in mem_allocator_disconnect()
115 	struct xdp_mem_allocator *xa;  in xdp_unreg_mem_model()  local
120 	mem->id = 0;  in xdp_unreg_mem_model()
121 	mem->type = 0;  in xdp_unreg_mem_model()
123 	if (id == 0)  in xdp_unreg_mem_model()
127 		xa = rhashtable_lookup_fast(mem_id_ht, &id, mem_id_rht_params);  in xdp_unreg_mem_model()
128 		page_pool_destroy(xa->page_pool);  in xdp_unreg_mem_model()
161 	memset(xdp_rxq, 0, sizeof(*xdp_rxq));  in xdp_rxq_info_init()
164 /* Returns 0 on success, negative on failure */
189 	return 0;  in xdp_rxq_info_reg()
211 		return 0;  in __mem_id_init_hash_table()
218 	if (ret < 0) {  in __mem_id_init_hash_table()
226 	return 0;  in __mem_id_init_hash_table()
241 	if (id < 0) {  in __mem_id_cyclic_get()
292 		if (ret < 0)  in __xdp_reg_mem_model()
302 	if (id < 0) {  in __xdp_reg_mem_model()
314 		mem->id = 0;  in __xdp_reg_mem_model()
339 	return 0;  in xdp_reg_mem_model()
359 	return 0;  in xdp_rxq_info_reg_mem_model()
373 	struct xdp_mem_allocator *xa;  in __xdp_return()  local
380 		xa = rhashtable_lookup(mem_id_ht, &mem->id, mem_id_rht_params);  in __xdp_return()
384 		page_pool_put_full_page(xa->page_pool, page, napi_direct);  in __xdp_return()
425 	struct xdp_mem_allocator *xa;  in __xdp_release_frame()  local
429 	xa = rhashtable_lookup(mem_id_ht, &mem->id, mem_id_rht_params);  in __xdp_release_frame()
431 	if (xa)  in __xdp_release_frame()
432 		page_pool_release_page(xa->page_pool, page);  in __xdp_release_frame()
455 	metasize = xdp_data_meta_unsupported(xdp) ? 0 :  in xdp_convert_zc_to_xdp_frame()
468 	memset(xdpf, 0, sizeof(*xdpf));  in xdp_convert_zc_to_xdp_frame()
476 	xdpf->headroom = 0;  in xdp_convert_zc_to_xdp_frame()