54 	struct hv_ring_buffer_info *rbi = &channel->outbound;  in hv_signal_on_write()  local
57 	if (READ_ONCE(rbi->ring_buffer->interrupt_mask))  in hv_signal_on_write()
66 	if (old_write == READ_ONCE(rbi->ring_buffer->read_index)) {  in hv_signal_on_write()
133 hv_get_ringbuffer_availbytes(const struct hv_ring_buffer_info *rbi,  in hv_get_ringbuffer_availbytes()  argument
139 	read_loc = READ_ONCE(rbi->ring_buffer->read_index);  in hv_get_ringbuffer_availbytes()
140 	write_loc = READ_ONCE(rbi->ring_buffer->write_index);  in hv_get_ringbuffer_availbytes()
141 	dsize = rbi->ring_datasize;  in hv_get_ringbuffer_availbytes()
438 static u32 hv_pkt_iter_avail(const struct hv_ring_buffer_info *rbi)  in hv_pkt_iter_avail()  argument
440 	u32 priv_read_loc = rbi->priv_read_index;  in hv_pkt_iter_avail()
450 	write_loc = virt_load_acquire(&rbi->ring_buffer->write_index);  in hv_pkt_iter_avail()
455 		return (rbi->ring_datasize - priv_read_loc) + write_loc;  in hv_pkt_iter_avail()
465 	struct hv_ring_buffer_info *rbi = &channel->inbound;  in hv_pkt_iter_first()  local
471 	bytes_avail = hv_pkt_iter_avail(rbi);  in hv_pkt_iter_first()
474 	bytes_avail = min(rbi->pkt_buffer_size, bytes_avail);  in hv_pkt_iter_first()
476 	desc = (struct vmpacket_descriptor *)(hv_get_ring_buffer(rbi) + rbi->priv_read_index);  in hv_pkt_iter_first()
500 	desc_copy = (struct vmpacket_descriptor *)rbi->pkt_buffer;  in hv_pkt_iter_first()
525 	struct hv_ring_buffer_info *rbi = &channel->inbound;  in __hv_pkt_iter_next()  local
527 	u32 dsize = rbi->ring_datasize;  in __hv_pkt_iter_next()
531 	rbi->priv_read_index += packetlen + VMBUS_PKT_TRAILER;  in __hv_pkt_iter_next()
532 	if (rbi->priv_read_index >= dsize)  in __hv_pkt_iter_next()
533 		rbi->priv_read_index -= dsize;  in __hv_pkt_iter_next()
541 static u32 hv_pkt_iter_bytes_read(const struct hv_ring_buffer_info *rbi,  in hv_pkt_iter_bytes_read()  argument
544 	if (rbi->priv_read_index >= start_read_index)  in hv_pkt_iter_bytes_read()
545 		return rbi->priv_read_index - start_read_index;  in hv_pkt_iter_bytes_read()
547 		return rbi->ring_datasize - start_read_index +  in hv_pkt_iter_bytes_read()
548 			rbi->priv_read_index;  in hv_pkt_iter_bytes_read()
573 	struct hv_ring_buffer_info *rbi = &channel->inbound;  in hv_pkt_iter_close()  local
582 	start_read_index = rbi->ring_buffer->read_index;  in hv_pkt_iter_close()
583 	rbi->ring_buffer->read_index = rbi->priv_read_index;  in hv_pkt_iter_close()
590 	if (!rbi->ring_buffer->feature_bits.feat_pending_send_sz)  in hv_pkt_iter_close()
609 	pending_sz = READ_ONCE(rbi->ring_buffer->pending_send_sz);  in hv_pkt_iter_close()
618 	curr_write_sz = hv_get_bytes_to_write(rbi);  in hv_pkt_iter_close()
619 	bytes_read = hv_pkt_iter_bytes_read(rbi, start_read_index);  in hv_pkt_iter_close()