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_rxq_info_unreg_mem_model()  local
120 	xdp_rxq->mem.id = 0;  in xdp_rxq_info_unreg_mem_model()
121 	xdp_rxq->mem.type = 0;  in xdp_rxq_info_unreg_mem_model()
128 	if (id == 0)  in xdp_rxq_info_unreg_mem_model()
133 		xa = rhashtable_lookup(mem_id_ht, &id, mem_id_rht_params);  in xdp_rxq_info_unreg_mem_model()
134 		page_pool_destroy(xa->page_pool);  in xdp_rxq_info_unreg_mem_model()
157 	memset(xdp_rxq, 0, sizeof(*xdp_rxq));  in xdp_rxq_info_init()
160 /* Returns 0 on success, negative on failure */
186 	return 0;  in xdp_rxq_info_reg()
208 		return 0;  in __mem_id_init_hash_table()
215 	if (ret < 0) {  in __mem_id_init_hash_table()
223 	return 0;  in __mem_id_init_hash_table()
238 	if (id < 0) {  in __mem_id_cyclic_get()
285 		return 0;  in xdp_rxq_info_reg_mem_model()
293 		if (ret < 0) {  in xdp_rxq_info_reg_mem_model()
305 	if (id < 0) {  in xdp_rxq_info_reg_mem_model()
317 		xdp_rxq->mem.id = 0;  in xdp_rxq_info_reg_mem_model()
328 	return 0;  in xdp_rxq_info_reg_mem_model()
345 	struct xdp_mem_allocator *xa;  in __xdp_return()  local
352 		xa = rhashtable_lookup(mem_id_ht, &mem->id, mem_id_rht_params);  in __xdp_return()
356 		page_pool_put_full_page(xa->page_pool, page, napi_direct);  in __xdp_return()
401 	struct xdp_mem_allocator *xa = bq->xa;  in xdp_flush_frame_bulk()  local
403 	if (unlikely(!xa || !bq->count))  in xdp_flush_frame_bulk()
406 	page_pool_put_page_bulk(xa->page_pool, bq->q, bq->count);  in xdp_flush_frame_bulk()
407 	/* bq->xa is not cleared to save lookup, if mem.id same in next bulk */  in xdp_flush_frame_bulk()
408 	bq->count = 0;  in xdp_flush_frame_bulk()
417 	struct xdp_mem_allocator *xa;  in xdp_return_frame_bulk()  local
424 	xa = bq->xa;  in xdp_return_frame_bulk()
425 	if (unlikely(!xa)) {  in xdp_return_frame_bulk()
426 		xa = rhashtable_lookup(mem_id_ht, &mem->id, mem_id_rht_params);  in xdp_return_frame_bulk()
427 		bq->count = 0;  in xdp_return_frame_bulk()
428 		bq->xa = xa;  in xdp_return_frame_bulk()
434 	if (unlikely(mem->id != xa->mem.id)) {  in xdp_return_frame_bulk()
436 		bq->xa = rhashtable_lookup(mem_id_ht, &mem->id, mem_id_rht_params);  in xdp_return_frame_bulk()
451 	struct xdp_mem_allocator *xa;  in __xdp_release_frame()  local
455 	xa = rhashtable_lookup(mem_id_ht, &mem->id, mem_id_rht_params);  in __xdp_release_frame()
457 	if (xa)  in __xdp_release_frame()
458 		page_pool_release_page(xa->page_pool, page);  in __xdp_release_frame()
481 	metasize = xdp_data_meta_unsupported(xdp) ? 0 :  in xdp_convert_zc_to_xdp_frame()
494 	memset(xdpf, 0, sizeof(*xdpf));  in xdp_convert_zc_to_xdp_frame()
502 	xdpf->headroom = 0;  in xdp_convert_zc_to_xdp_frame()
526 	return 0;  in xdp_alloc_skb_bulk()
583 	memset(skb, 0, offsetof(struct sk_buff, tail));  in xdp_build_skb_from_frame()
612 	nxdpf->mem.id = 0;  in xdpf_clone()