From: Kanaka Durga Kotamarthy <kkotamar...@marvell.com>
Add helper functions to get meta len for asymmetric operations
Signed-off-by: Anoob Joseph <ano...@marvell.com>
Signed-off-by: Kanaka Durga Kotamarthy <kkotamar...@marvell.com>
Signed-off-by: Sunila Sahu <ss...@marvell.com>
---
drivers/common/cpt/cpt_pmd_ops_helper.c | 15 +++++++++
drivers/common/cpt/cpt_pmd_ops_helper.h | 9 ++++++
drivers/common/cpt/rte_common_cpt_version.map | 8 +++++
drivers/crypto/octeontx/otx_cryptodev_hw_access.c | 39 ++++++++++++++++-------
4 files changed, 60 insertions(+), 11 deletions(-)
diff --git a/drivers/common/cpt/cpt_pmd_ops_helper.c
b/drivers/common/cpt/cpt_pmd_ops_helper.c
index 1c18180..09b762f 100644
--- a/drivers/common/cpt/cpt_pmd_ops_helper.c
+++ b/drivers/common/cpt/cpt_pmd_ops_helper.c
@@ -11,6 +11,8 @@
#define CPT_MAX_IV_LEN 16
#define CPT_OFFSET_CONTROL_BYTES 8
+#define CPT_MAX_ASYM_OP_NUM_PARAMS 5
+#define CPT_MAX_ASYM_OP_MOD_LEN 1024
int32_t
cpt_pmd_ops_helper_get_mlen_direct_mode(void)
@@ -39,3 +41,16 @@ cpt_pmd_ops_helper_get_mlen_sg_mode(void)
len += 2 * sizeof(cpt_res_s_t);
return len;
}
+
+int
+cpt_pmd_ops_helper_asym_get_mlen(void)
+{
+ uint32_t len;
+
+ /* Get meta len for linear buffer (direct) mode */
+ len = cpt_pmd_ops_helper_get_mlen_direct_mode();
+
+ /* Get meta len for asymmetric operations */
+ len += CPT_MAX_ASYM_OP_NUM_PARAMS * CPT_MAX_ASYM_OP_MOD_LEN;
+ return len;
+}
diff --git a/drivers/common/cpt/cpt_pmd_ops_helper.h
b/drivers/common/cpt/cpt_pmd_ops_helper.h
index dd32f9a..24c3559 100644
--- a/drivers/common/cpt/cpt_pmd_ops_helper.h
+++ b/drivers/common/cpt/cpt_pmd_ops_helper.h
@@ -31,4 +31,13 @@ cpt_pmd_ops_helper_get_mlen_direct_mode(void);
*/
int
cpt_pmd_ops_helper_get_mlen_sg_mode(void);
+
+/*
+ * Get size of meta buffer to be allocated for asymmetric crypto operations
+ *
+ * @return
+ * - length
+ */
+int
+cpt_pmd_ops_helper_asym_get_mlen(void);
#endif /* _CPT_PMD_OPS_HELPER_H_ */
diff --git a/drivers/common/cpt/rte_common_cpt_version.map
b/drivers/common/cpt/rte_common_cpt_version.map
index dec614f..382ec4b 100644
--- a/drivers/common/cpt/rte_common_cpt_version.map
+++ b/drivers/common/cpt/rte_common_cpt_version.map
@@ -4,3 +4,11 @@ DPDK_18.11 {
cpt_pmd_ops_helper_get_mlen_direct_mode;
cpt_pmd_ops_helper_get_mlen_sg_mode;
};
+
+DPDK_19.11 {
+ global:
+
+ cpt_pmd_ops_helper_asym_get_mlen;
+
+ local: *;
+};
diff --git a/drivers/crypto/octeontx/otx_cryptodev_hw_access.c
b/drivers/crypto/octeontx/otx_cryptodev_hw_access.c
index ad64bf4..ce546c2 100644
--- a/drivers/crypto/octeontx/otx_cryptodev_hw_access.c
+++ b/drivers/crypto/octeontx/otx_cryptodev_hw_access.c
@@ -412,24 +412,41 @@ otx_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 max_mlen = 0;
+ int sg_mlen = 0;
+ int lb_mlen = 0;
+ int ret;
- /* Get meta len for scatter gather mode */
- sg_mlen = cpt_pmd_ops_helper_get_mlen_sg_mode();
+ /*
+ * Calculate metabuf length required. The 'crypto_octeontx' device
+ * would be either SYMMETRIC or ASYMMETRIC.
+ */
- /* Extra 32B saved for future considerations */
- sg_mlen += 4 * sizeof(uint64_t);
+ if (dev->feature_flags & RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO) {
- /* Get meta len for linear buffer (direct) mode */
- lb_mlen = cpt_pmd_ops_helper_get_mlen_direct_mode();
+ /* Get meta len for scatter gather mode */
+ sg_mlen = cpt_pmd_ops_helper_get_mlen_sg_mode();
- /* Extra 32B saved for future considerations */
- lb_mlen += 4 * sizeof(uint64_t);
+ /* Extra 32B saved for future considerations */
+ sg_mlen += 4 * sizeof(uint64_t);
- /* Check max requirement for meta buffer */
- max_mlen = RTE_MAX(lb_mlen, sg_mlen);
+ /* Get meta len for linear buffer (direct) mode */
+ lb_mlen = cpt_pmd_ops_helper_get_mlen_direct_mode();
+
+ /* Extra 32B saved for future considerations */
+ lb_mlen += 4 * sizeof(uint64_t);
+
+ /* Check max requirement for meta buffer */
+ max_mlen = RTE_MAX(lb_mlen, sg_mlen);
+ } else {
+
+ /* Asymmetric device */
+
+ /* Get meta len for asymmetric operations */
+ max_mlen = cpt_pmd_ops_helper_asym_get_mlen();
+ }
/* Allocate mempool */
--
2.7.4
