contrib/ena-com/ena_eth_com.c

37 	struct ena_com_io_cq *io_cq)
43 	head_masked = io_cq->head & (io_cq->q_depth - 1);
44 	expected_phase = io_cq->phase;
46 	cdesc = (struct ena_eth_io_rx_cdesc_base *)(io_cq->cdesc_addr.virt_addr
47 			+ (head_masked * io_cq->cdesc_entry_size_in_bytes));
255 	ena_com_rx_cdesc_idx_to_ptr(struct ena_com_io_cq *io_cq, u16 idx)
257 	idx &= (io_cq->q_depth - 1);
259 		((uintptr_t)io_cq->cdesc_addr.virt_addr +
260 		idx * io_cq->cdesc_entry_size_in_bytes);
263 static u16 ena_com_cdesc_rx_pkt_get(struct ena_com_io_cq *io_cq,
271 		cdesc = ena_com_get_next_rx_cdesc(io_cq);
275 		ena_com_cq_inc_head(io_cq);
282 		*first_cdesc_idx = io_cq->cur_rx_pkt_cdesc_start_idx;
283 		count += io_cq->cur_rx_pkt_cdesc_count;
285 		head_masked = io_cq->head & (io_cq->q_depth - 1);
287 		io_cq->cur_rx_pkt_cdesc_count = 0;
288 		io_cq->cur_rx_pkt_cdesc_start_idx = head_masked;
290 		ena_trc_dbg(ena_com_io_cq_to_ena_dev(io_cq),
292 			    io_cq->qid, *first_cdesc_idx, count);
294 		io_cq->cur_rx_pkt_cdesc_count += count;
376 static void ena_com_rx_set_flags(struct ena_com_io_cq *io_cq,
399 	ena_trc_dbg(ena_com_io_cq_to_ena_dev(io_cq),
576 int ena_com_rx_pkt(struct ena_com_io_cq *io_cq,
582 	u16 q_depth = io_cq->q_depth;
587 	ENA_WARN(io_cq->direction != ENA_COM_IO_QUEUE_DIRECTION_RX,
588 		 ena_com_io_cq_to_ena_dev(io_cq), "wrong Q type");
590 	nb_hw_desc = ena_com_cdesc_rx_pkt_get(io_cq, &cdesc_idx);
596 	ena_trc_dbg(ena_com_io_cq_to_ena_dev(io_cq),
598 		    io_cq->qid, nb_hw_desc);
601 		ena_trc_err(ena_com_io_cq_to_ena_dev(io_cq),
607 	cdesc = ena_com_rx_cdesc_idx_to_ptr(io_cq, cdesc_idx);
619 		cdesc = ena_com_rx_cdesc_idx_to_ptr(io_cq, cdesc_idx + i);
626 	ena_trc_dbg(ena_com_io_cq_to_ena_dev(io_cq),
631 	ena_com_rx_set_flags(io_cq, ena_rx_ctx, cdesc);
676 bool ena_com_cq_empty(struct ena_com_io_cq *io_cq)
680 	cdesc = ena_com_get_next_rx_cdesc(io_cq);