[dpdk-dev] [PATCH v7 04/13] dma/skeleton: add burst capacity function

[Bruce Richardson <bruce.richardson@intel.com>]

Implement function to return the remaining space for operations.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: Conor Walsh <conor.walsh@intel.com>
---
 drivers/dma/skeleton/skeleton_dmadev.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/dma/skeleton/skeleton_dmadev.c b/drivers/dma/skeleton/skeleton_dmadev.c
index dd2f1c9b57..2952417126 100644
--- a/drivers/dma/skeleton/skeleton_dmadev.c
+++ b/drivers/dma/skeleton/skeleton_dmadev.c
@@ -431,6 +431,15 @@ skeldma_completed_status(void *dev_private,
 	return count;
 }
 
+static uint16_t
+skeldma_burst_capacity(const void *dev_private, uint16_t vchan)
+{
+	const struct skeldma_hw *hw = dev_private;
+
+	RTE_SET_USED(vchan);
+	return rte_ring_count(hw->desc_empty);
+}
+
 static const struct rte_dma_dev_ops skeldma_ops = {
 	.dev_info_get     = skeldma_info_get,
 	.dev_configure    = skeldma_configure,
@@ -469,6 +478,7 @@ skeldma_create(const char *name, struct rte_vdev_device *vdev, int lcore_id)
 	dev->fp_obj->submit = skeldma_submit;
 	dev->fp_obj->completed = skeldma_completed;
 	dev->fp_obj->completed_status = skeldma_completed_status;
+	dev->fp_obj->burst_capacity = skeldma_burst_capacity;
 
 	hw = dev->data->dev_private;
 	hw->lcore_id = lcore_id;
-- 
2.30.2