power: add get/set pause duration API

[dpdk.git] / drivers / dma / idxd / idxd_common.c

diff --git a/drivers/dma/idxd/idxd_common.c b/drivers/dma/idxd/idxd_common.c
index 4442d1c..ea6413c 100644 (file)
--- a/drivers/dma/idxd/idxd_common.c
+++ b/drivers/dma/idxd/idxd_common.c
@@ -480,10 +480,8 @@ idxd_burst_capacity(const void *dev_private, uint16_t vchan __rte_unused)
                        idxd->batch_idx_write + 1 == idxd->batch_idx_read)
                return 0;
 
-       /* For descriptors, check for wrap-around on write but not read */
-       if (idxd->ids_returned > write_idx)
-               write_idx += idxd->desc_ring_mask + 1;
-       used_space = write_idx - idxd->ids_returned;
+       /* Subtract and mask to get in correct range */
+       used_space = (write_idx - idxd->ids_returned) & idxd->desc_ring_mask;
 
        const int ret = RTE_MIN((idxd->desc_ring_mask - used_space),
                        (idxd->max_batch_size - idxd->batch_size));