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[1/2] common/cnxk: align CPT queue depth to power of 2

Message ID 1634543500-128-1-git-send-email-anoobj@marvell.com (mailing list archive)
State Accepted, archived
Delegated to: akhil goyal
Headers show
Series [1/2] common/cnxk: align CPT queue depth to power of 2 | expand

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Anoob Joseph Oct. 18, 2021, 7:51 a.m. UTC
Use CPT LF queue depth as power of 2 to aid in masked checks for pending
queue.

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

Comments

Akhil Goyal Oct. 20, 2021, 2:14 p.m. UTC | #1
> Subject: [PATCH 1/2] common/cnxk: align CPT queue depth to power of 2
> 
> Use CPT LF queue depth as power of 2 to aid in masked checks for pending
> queue.
> 
> Signed-off-by: Anoob Joseph <anoobj@marvell.com>
> Acked-by: Jerin Jacob Kollanukkaran <jerinj@marvell.com>
> ---
Series Applied to dpdk-next-crypto
Thanks.
diff mbox series

Patch

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)