24 #define REG_STATE_NEW		0x0
25 #define REG_STATE_REGISTERED	0x1
26 #define REG_STATE_UNREGISTERED	0x2
27 #define REG_STATE_UNUSED	0x3
31 #define MEM_ID_MAX 0xFFFE
53 	const struct xdp_mem_allocator *xa = ptr;  in xdp_mem_id_cmp()  local
56 	return xa->mem.id != mem_id;  in xdp_mem_id_cmp()
73 	struct xdp_mem_allocator *xa;  in __xdp_mem_allocator_rcu_free()  local
75 	xa = container_of(rcu, struct xdp_mem_allocator, rcu);  in __xdp_mem_allocator_rcu_free()
78 	ida_simple_remove(&mem_id_pool, xa->mem.id);  in __xdp_mem_allocator_rcu_free()
80 	kfree(xa);  in __xdp_mem_allocator_rcu_free()
83 static void mem_xa_remove(struct xdp_mem_allocator *xa)  in mem_xa_remove()  argument
85 	trace_mem_disconnect(xa);  in mem_xa_remove()
87 	if (!rhashtable_remove_fast(mem_id_ht, &xa->node, mem_id_rht_params))  in mem_xa_remove()
88 		call_rcu(&xa->rcu, __xdp_mem_allocator_rcu_free);  in mem_xa_remove()
93 	struct xdp_mem_allocator *xa;  in mem_allocator_disconnect()  local
102 		while ((xa = rhashtable_walk_next(&iter)) && !IS_ERR(xa)) {  in mem_allocator_disconnect()
103 			if (xa->allocator == allocator)  in mem_allocator_disconnect()
104 				mem_xa_remove(xa);  in mem_allocator_disconnect()
109 	} while (xa == ERR_PTR(-EAGAIN));  in mem_allocator_disconnect()
117 	struct xdp_mem_allocator *xa;  in xdp_unreg_mem_model()  local
122 	mem->id = 0;  in xdp_unreg_mem_model()
123 	mem->type = 0;  in xdp_unreg_mem_model()
125 	if (id == 0)  in xdp_unreg_mem_model()
129 		xa = rhashtable_lookup_fast(mem_id_ht, &id, mem_id_rht_params);  in xdp_unreg_mem_model()
130 		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 */
192 	return 0;  in __xdp_rxq_info_reg()
214 		return 0;  in __mem_id_init_hash_table()
221 	if (ret < 0) {  in __mem_id_init_hash_table()
229 	return 0;  in __mem_id_init_hash_table()
244 	if (id < 0) {  in __mem_id_cyclic_get()
295 		if (ret < 0)  in __xdp_reg_mem_model()
305 	if (id < 0) {  in __xdp_reg_mem_model()
317 		mem->id = 0;  in __xdp_reg_mem_model()
342 	return 0;  in xdp_reg_mem_model()
362 	return 0;  in xdp_rxq_info_reg_mem_model()
383 		/* No need to check ((page->pp_magic & ~0x3UL) == PP_SIGNATURE)  in __xdp_return()
415 	for (i = 0; i < sinfo->nr_frags; i++) {  in xdp_return_frame()
434 	for (i = 0; i < sinfo->nr_frags; i++) {  in xdp_return_frame_rx_napi()
456 	struct xdp_mem_allocator *xa = bq->xa;  in xdp_flush_frame_bulk()  local
458 	if (unlikely(!xa || !bq->count))  in xdp_flush_frame_bulk()
461 	page_pool_put_page_bulk(xa->page_pool, bq->q, bq->count);  in xdp_flush_frame_bulk()
462 	/* bq->xa is not cleared to save lookup, if mem.id same in next bulk */  in xdp_flush_frame_bulk()
463 	bq->count = 0;  in xdp_flush_frame_bulk()
472 	struct xdp_mem_allocator *xa;  in xdp_return_frame_bulk()  local
479 	xa = bq->xa;  in xdp_return_frame_bulk()
480 	if (unlikely(!xa)) {  in xdp_return_frame_bulk()
481 		xa = rhashtable_lookup(mem_id_ht, &mem->id, mem_id_rht_params);  in xdp_return_frame_bulk()
482 		bq->count = 0;  in xdp_return_frame_bulk()
483 		bq->xa = xa;  in xdp_return_frame_bulk()
489 	if (unlikely(mem->id != xa->mem.id)) {  in xdp_return_frame_bulk()
491 		bq->xa = rhashtable_lookup(mem_id_ht, &mem->id, mem_id_rht_params);  in xdp_return_frame_bulk()
499 		for (i = 0; i < sinfo->nr_frags; i++) {  in xdp_return_frame_bulk()
520 	for (i = 0; i < sinfo->nr_frags; i++) {  in xdp_return_buff()
548 	metasize = xdp_data_meta_unsupported(xdp) ? 0 :  in xdp_convert_zc_to_xdp_frame()
561 	memset(xdpf, 0, sizeof(*xdpf));  in xdp_convert_zc_to_xdp_frame()
569 	xdpf->headroom = 0;  in xdp_convert_zc_to_xdp_frame()
592 	return 0;  in xdp_alloc_skb_bulk()
661 	memset(skb, 0, offsetof(struct sk_buff, tail));  in xdp_build_skb_from_frame()
690 	nxdpf->mem.id = 0;  in xdpf_clone()
705  * * Returns 0 on success or ``-errno`` on error.
727  * * Returns 0 on success or ``-errno`` on error.