[1/4] dma/hisilicon: fix return last-idx when no DMA completed
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Commit Message
If no DMA request is completed, the ring_idx of the last completed
operation need returned by last_idx parameter. This patch fixes it.
Fixes: 2db4f0b82360 ("dma/hisilicon: add data path")
Cc: stable@dpdk.org
Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
---
drivers/dma/hisilicon/hisi_dmadev.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
@@ -702,12 +702,12 @@ hisi_dma_completed(void *dev_private,
}
sq_head = (sq_head + 1) & hw->sq_depth_mask;
}
+ *last_idx = hw->cridx + i - 1;
if (i > 0) {
hw->cridx += i;
- *last_idx = hw->cridx - 1;
hw->sq_head = sq_head;
+ hw->completed += i;
}
- hw->completed += i;
return i;
}
@@ -761,12 +761,12 @@ hisi_dma_completed_status(void *dev_private,
hw->status[sq_head] = HISI_DMA_STATUS_SUCCESS;
sq_head = (sq_head + 1) & hw->sq_depth_mask;
}
+ *last_idx = hw->cridx + cpl_num - 1;
if (likely(cpl_num > 0)) {
hw->cridx += cpl_num;
- *last_idx = hw->cridx - 1;
hw->sq_head = sq_head;
+ hw->completed += cpl_num;
}
- hw->completed += cpl_num;
return cpl_num;
}