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dma/hisilicon: support vchan status query

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This patch adds support for vchan-status ops.

Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
This commit is contained in:
Chengwen Feng 2022-05-27 11:40:55 +08:00 committed by Thomas Monjalon
parent e03c601acb
commit 157e8326e9
2 changed files with 36 additions and 1 deletions
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30
drivers/dma/hisilicon/hisi_dmadev.c
View File

@ -461,6 +461,27 @@ hisi_dma_stats_reset(struct rte_dma_dev *dev, uint16_t vchan)
return 0;
}
static int
hisi_dma_vchan_status(const struct rte_dma_dev *dev, uint16_t vchan,
enum rte_dma_vchan_status *status)
{
struct hisi_dma_dev *hw = dev->data->dev_private;
uint32_t val;
RTE_SET_USED(vchan);
val = hisi_dma_read_queue(hw, HISI_DMA_QUEUE_FSM_REG);
val = FIELD_GET(HISI_DMA_QUEUE_FSM_STS_M, val);
if (val == HISI_DMA_STATE_RUN)
*status = RTE_DMA_VCHAN_ACTIVE;
else if (val == HISI_DMA_STATE_CPL)
*status = RTE_DMA_VCHAN_IDLE;
else
*status = RTE_DMA_VCHAN_HALTED_ERROR;
return 0;
}
static void
hisi_dma_dump_range(struct hisi_dma_dev *hw, FILE *f, uint32_t start,
uint32_t end)
@ -816,6 +837,14 @@ hisi_dma_gen_dev_name(const struct rte_pci_device *pci_dev,
* dev_stop| |
* | v
* ------------------
* | CPL |
* ------------------
* ^ |
* hardware | |
* completed all| |dev_submit
* descriptors | |
* | |
* ------------------
* | RUN |
* ------------------
*
@ -829,6 +858,7 @@ static const struct rte_dma_dev_ops hisi_dmadev_ops = {
.vchan_setup = hisi_dma_vchan_setup,
.stats_get = hisi_dma_stats_get,
.stats_reset = hisi_dma_stats_reset,
.vchan_status = hisi_dma_vchan_status,
.dev_dump = hisi_dma_dump,
};

7
drivers/dma/hisilicon/hisi_dmadev.h
View File

@ -132,11 +132,16 @@ enum {
/**
* In fact, there are multiple states, but it need to pay attention to
* the following two states for the driver:
* the following three states for the driver:
*/
enum {
HISI_DMA_STATE_IDLE = 0,
HISI_DMA_STATE_RUN,
/**
* All of the submitted descriptor are finished, and the queue
* is waiting for new descriptors.
*/
HISI_DMA_STATE_CPL,
};
/**