| 533 | } |
| 534 | |
| 535 | int |
| 536 | rte_dma_stop(int16_t dev_id) |
| 537 | { |
| 538 | struct rte_dma_dev *dev = &rte_dma_devices[dev_id]; |
| 539 | int ret; |
| 540 | |
| 541 | if (!rte_dma_is_valid(dev_id)) |
| 542 | return -EINVAL; |
| 543 | |
| 544 | if (dev->data->dev_started == 0) { |
| 545 | RTE_DMA_LOG(WARNING, "Device %d already stopped", dev_id); |
| 546 | return 0; |
| 547 | } |
| 548 | |
| 549 | if (dev->dev_ops->dev_stop == NULL) |
| 550 | goto mark_stopped; |
| 551 | |
| 552 | ret = (*dev->dev_ops->dev_stop)(dev); |
| 553 | rte_dma_trace_stop(dev_id, ret); |
| 554 | if (ret != 0) |
| 555 | return ret; |
| 556 | |
| 557 | mark_stopped: |
| 558 | dev->data->dev_started = 0; |
| 559 | return 0; |
| 560 | } |
| 561 | |
| 562 | int |
| 563 | rte_dma_close(int16_t dev_id) |