diff mbox series

[4/5] crypto/cnxk: use unique cache line per inst

Message ID 20220131123029.4024-5-ktejasree@marvell.com (mailing list archive)
State Accepted, archived
Delegated to: akhil goyal
Headers
Series Adding new features and improvements in cnxk crypto PMD |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Tejasree Kondoj Jan. 31, 2022, 12:30 p.m. UTC 
  From: Anoob Joseph <anoobj@marvell.com>

CPT inflight request is used to track a request that is enqueued to
cryptodev. Having more than one inst use the same cacheline can result
in serialization of CPT result memory writes causing perf degradations.
Align inflight request to ROC cache line to ensure only one result would
be written per cache line..

Signed-off-by: Anoob Joseph <anoobj@marvell.com>
---
 drivers/crypto/cnxk/cnxk_cryptodev_ops.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/crypto/cnxk/cnxk_cryptodev_ops.h b/drivers/crypto/cnxk/cnxk_cryptodev_ops.h
index e521f07585..0656ba9675 100644
--- a/drivers/crypto/cnxk/cnxk_cryptodev_ops.h
+++ b/drivers/crypto/cnxk/cnxk_cryptodev_ops.h
@@ -40,7 +40,9 @@  struct cpt_inflight_req {
 	void *mdata;
 	uint8_t op_flags;
 	void *qp;
-} __rte_aligned(16);
+} __rte_aligned(ROC_ALIGN);
+
+PLT_STATIC_ASSERT(sizeof(struct cpt_inflight_req) == ROC_CACHE_LINE_SZ);
 
 struct pending_queue {
 	/** Array of pending requests */