[dpdk-dev] [PATCH 2/6] crypto/octeontx2: allocate memory for asymmetric operation
Anoob Joseph
anoobj at marvell.com
Mon Sep 9 17:26:35 CEST 2019
From: Kanaka Durga Kotamarthy <kkotamarthy at marvell.com>
This patch determines metabuf length needed to perform asymmetric crypto
operation.
Signed-off-by: Anoob Joseph <anoobj at marvell.com>
Signed-off-by: Kanaka Durga Kotamarthy <kkotamarthy at marvell.com>
Signed-off-by: Sunila Sahu <ssahu at marvell.com>
---
drivers/crypto/octeontx2/otx2_cryptodev_ops.c | 37 +++++++++++++++++++--------
1 file changed, 26 insertions(+), 11 deletions(-)
diff --git a/drivers/crypto/octeontx2/otx2_cryptodev_ops.c b/drivers/crypto/octeontx2/otx2_cryptodev_ops.c
index b21714c..6050b18 100644
--- a/drivers/crypto/octeontx2/otx2_cryptodev_ops.c
+++ b/drivers/crypto/octeontx2/otx2_cryptodev_ops.c
@@ -38,24 +38,39 @@ otx2_cpt_metabuf_mempool_create(const struct rte_cryptodev *dev,
int nb_elements)
{
char mempool_name[RTE_MEMPOOL_NAMESIZE];
- int sg_mlen, lb_mlen, max_mlen, ret;
struct cpt_qp_meta_info *meta_info;
struct rte_mempool *pool;
+ int ret, max_mlen;
+ int asym_mlen = 0;
+ int lb_mlen = 0;
+ int sg_mlen = 0;
- /* Get meta len for scatter gather mode */
- sg_mlen = cpt_pmd_ops_helper_get_mlen_sg_mode();
+ if (dev->feature_flags & RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO) {
- /* Extra 32B saved for future considerations */
- sg_mlen += 4 * sizeof(uint64_t);
+ /* Get meta len for scatter gather mode */
+ sg_mlen = cpt_pmd_ops_helper_get_mlen_sg_mode();
- /* Get meta len for linear buffer (direct) mode */
- lb_mlen = cpt_pmd_ops_helper_get_mlen_direct_mode();
+ /* Extra 32B saved for future considerations */
+ sg_mlen += 4 * sizeof(uint64_t);
- /* Extra 32B saved for future considerations */
- lb_mlen += 4 * sizeof(uint64_t);
+ /* Get meta len for linear buffer (direct) mode */
+ lb_mlen = cpt_pmd_ops_helper_get_mlen_direct_mode();
- /* Check max requirement for meta buffer */
- max_mlen = RTE_MAX(lb_mlen, sg_mlen);
+ /* Extra 32B saved for future considerations */
+ lb_mlen += 4 * sizeof(uint64_t);
+ }
+
+ if (dev->feature_flags & RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO) {
+
+ /* Get meta len required for asymmetric operations */
+ asym_mlen = cpt_pmd_ops_helper_asym_get_mlen();
+ }
+
+ /*
+ * Check max requirement for meta buffer to
+ * support crypto op of any type (sym/asym).
+ */
+ max_mlen = RTE_MAX(RTE_MAX(lb_mlen, sg_mlen), asym_mlen);
/* Allocate mempool */
--
2.7.4
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