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common/cpt: add helper functions for asymmetric crypto

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Add helper functions to get meta len for asymmetric operations

Signed-off-by: Anoob Joseph <anoobj@marvell.com>
Signed-off-by: Kanaka Durga Kotamarthy <kkotamarthy@marvell.com>
Signed-off-by: Sunila Sahu <ssahu@marvell.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
This commit is contained in:
Kanaka Durga Kotamarthy 2019-10-11 18:31:34 +05:30 committed by Akhil Goyal
parent 33bcaae5f8
commit fadc1ea15c
4 changed files with 60 additions and 11 deletions
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15
drivers/common/cpt/cpt_pmd_ops_helper.c
View File

@ -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;
}

9
drivers/common/cpt/cpt_pmd_ops_helper.h
View File

@ -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_ */

8
drivers/common/cpt/rte_common_cpt_version.map
View File

@ -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: *;
};

39
drivers/crypto/octeontx/otx_cryptodev_hw_access.c
View File

@ -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 */