[dpdk-dev] [PATCH 1/2] common/cnxk: align CPT queue depth to power of 2

[Anoob Joseph]

Use CPT LF queue depth as power of 2 to aid in masked checks for pending
queue.

Signed-off-by: Anoob Joseph <anoobj at marvell.com>
Acked-by: Jerin Jacob Kollanukkaran <jerinj at marvell.com>
---
 drivers/common/cnxk/roc_cpt.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/common/cnxk/roc_cpt.c b/drivers/common/cnxk/roc_cpt.c
index 74ada6e..5674418 100644
--- a/drivers/common/cnxk/roc_cpt.c
+++ b/drivers/common/cnxk/roc_cpt.c
@@ -568,6 +568,9 @@ cpt_lf_init(struct roc_cpt_lf *lf)
 	if (lf->nb_desc == 0 || lf->nb_desc > CPT_LF_MAX_NB_DESC)
 		lf->nb_desc = CPT_LF_DEFAULT_NB_DESC;
 
+	/* Update nb_desc to next power of 2 to aid in pending queue checks */
+	lf->nb_desc = plt_align32pow2(lf->nb_desc);
+
 	/* Allocate memory for instruction queue for CPT LF. */
 	iq_mem = plt_zmalloc(cpt_lf_iq_mem_calc(lf->nb_desc), ROC_ALIGN);
 	if (iq_mem == NULL)
-- 
2.7.4