crypto/octeontx2: support asymmetric in enqueue/dequeue

This patch adds asymmetric support in enqueue/dequeue ops.

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:
Sunila Sahu 2019-10-16 20:55:43 +05:30 committed by Akhil Goyal
parent 364b9bfc81
commit 04227377c8
2 changed files with 178 additions and 0 deletions

View File

@ -393,6 +393,78 @@ otx2_cpt_enqueue_req(const struct otx2_cpt_qp *qp,
return 0;
}
static __rte_always_inline int32_t __hot
otx2_cpt_enqueue_asym(struct otx2_cpt_qp *qp,
struct rte_crypto_op *op,
struct pending_queue *pend_q)
{
struct cpt_qp_meta_info *minfo = &qp->meta_info;
struct rte_crypto_asym_op *asym_op = op->asym;
struct asym_op_params params = {0};
struct cpt_asym_sess_misc *sess;
vq_cmd_word3_t *w3;
uintptr_t *cop;
void *mdata;
int ret;
if (unlikely(rte_mempool_get(minfo->pool, &mdata) < 0)) {
CPT_LOG_ERR("Could not allocate meta buffer for request");
return -ENOMEM;
}
sess = get_asym_session_private_data(asym_op->session,
otx2_cryptodev_driver_id);
/* Store IO address of the mdata to meta_buf */
params.meta_buf = rte_mempool_virt2iova(mdata);
cop = mdata;
cop[0] = (uintptr_t)mdata;
cop[1] = (uintptr_t)op;
cop[2] = cop[3] = 0ULL;
params.req = RTE_PTR_ADD(cop, 4 * sizeof(uintptr_t));
params.req->op = cop;
/* Adjust meta_buf to point to end of cpt_request_info structure */
params.meta_buf += (4 * sizeof(uintptr_t)) +
sizeof(struct cpt_request_info);
switch (sess->xfrm_type) {
case RTE_CRYPTO_ASYM_XFORM_MODEX:
ret = cpt_modex_prep(&params, &sess->mod_ctx);
if (unlikely(ret))
goto req_fail;
break;
case RTE_CRYPTO_ASYM_XFORM_RSA:
ret = cpt_enqueue_rsa_op(op, &params, sess);
if (unlikely(ret))
goto req_fail;
break;
default:
op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
ret = -EINVAL;
goto req_fail;
}
/* Set engine group of AE */
w3 = (vq_cmd_word3_t *)&params.req->ist.ei3;
w3->s.grp = OTX2_CPT_EGRP_AE;
ret = otx2_cpt_enqueue_req(qp, pend_q, params.req);
if (unlikely(ret)) {
CPT_LOG_DP_ERR("Could not enqueue crypto req");
goto req_fail;
}
return 0;
req_fail:
free_op_meta(mdata, minfo->pool);
return ret;
}
static __rte_always_inline int __hot
otx2_cpt_enqueue_sym(struct otx2_cpt_qp *qp, struct rte_crypto_op *op,
struct pending_queue *pend_q)
@ -494,6 +566,11 @@ otx2_cpt_enqueue_burst(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
else
ret = otx2_cpt_enqueue_sym_sessless(qp, op,
pend_q);
} else if (op->type == RTE_CRYPTO_OP_TYPE_ASYMMETRIC) {
if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION)
ret = otx2_cpt_enqueue_asym(qp, op, pend_q);
else
break;
} else
break;
@ -504,6 +581,92 @@ otx2_cpt_enqueue_burst(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
return count;
}
static __rte_always_inline void
otx2_cpt_asym_rsa_op(struct rte_crypto_op *cop, struct cpt_request_info *req,
struct rte_crypto_rsa_xform *rsa_ctx)
{
struct rte_crypto_rsa_op_param *rsa = &cop->asym->rsa;
switch (rsa->op_type) {
case RTE_CRYPTO_ASYM_OP_ENCRYPT:
rsa->cipher.length = rsa_ctx->n.length;
memcpy(rsa->cipher.data, req->rptr, rsa->cipher.length);
break;
case RTE_CRYPTO_ASYM_OP_DECRYPT:
if (rsa->pad == RTE_CRYPTO_RSA_PADDING_NONE) {
rsa->message.length = rsa_ctx->n.length;
memcpy(rsa->message.data, req->rptr,
rsa->message.length);
} else {
/* Get length of decrypted output */
rsa->message.length = rte_cpu_to_be_16
(*((uint16_t *)req->rptr));
/*
* Offset output data pointer by length field
* (2 bytes) and copy decrypted data.
*/
memcpy(rsa->message.data, req->rptr + 2,
rsa->message.length);
}
break;
case RTE_CRYPTO_ASYM_OP_SIGN:
rsa->sign.length = rsa_ctx->n.length;
memcpy(rsa->sign.data, req->rptr, rsa->sign.length);
break;
case RTE_CRYPTO_ASYM_OP_VERIFY:
if (rsa->pad == RTE_CRYPTO_RSA_PADDING_NONE) {
rsa->sign.length = rsa_ctx->n.length;
memcpy(rsa->sign.data, req->rptr, rsa->sign.length);
} else {
/* Get length of signed output */
rsa->sign.length = rte_cpu_to_be_16
(*((uint16_t *)req->rptr));
/*
* Offset output data pointer by length field
* (2 bytes) and copy signed data.
*/
memcpy(rsa->sign.data, req->rptr + 2,
rsa->sign.length);
}
if (memcmp(rsa->sign.data, rsa->message.data,
rsa->message.length)) {
CPT_LOG_DP_ERR("RSA verification failed");
cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
}
break;
default:
CPT_LOG_DP_DEBUG("Invalid RSA operation type");
cop->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
break;
}
}
static void
otx2_cpt_asym_post_process(struct rte_crypto_op *cop,
struct cpt_request_info *req)
{
struct rte_crypto_asym_op *op = cop->asym;
struct cpt_asym_sess_misc *sess;
sess = get_asym_session_private_data(op->session,
otx2_cryptodev_driver_id);
switch (sess->xfrm_type) {
case RTE_CRYPTO_ASYM_XFORM_RSA:
otx2_cpt_asym_rsa_op(cop, req, &sess->rsa_ctx);
break;
case RTE_CRYPTO_ASYM_XFORM_MODEX:
op->modex.result.length = sess->mod_ctx.modulus.length;
memcpy(op->modex.result.data, req->rptr,
op->modex.result.length);
break;
default:
CPT_LOG_DP_DEBUG("Invalid crypto xform type");
cop->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
break;
}
}
static inline void
otx2_cpt_dequeue_post_process(struct otx2_cpt_qp *qp, struct rte_crypto_op *cop,
uintptr_t *rsp, uint8_t cc)
@ -530,6 +693,20 @@ otx2_cpt_dequeue_post_process(struct otx2_cpt_qp *qp, struct rte_crypto_op *cop,
cop->sym->session = NULL;
}
}
if (cop->type == RTE_CRYPTO_OP_TYPE_ASYMMETRIC) {
if (likely(cc == NO_ERR)) {
cop->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
/*
* Pass cpt_req_info stored in metabuf during
* enqueue.
*/
rsp = RTE_PTR_ADD(rsp, 4 * sizeof(uintptr_t));
otx2_cpt_asym_post_process(cop,
(struct cpt_request_info *)rsp);
} else
cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
}
}
static __rte_always_inline uint8_t

View File

@ -13,6 +13,7 @@
enum otx2_cpt_egrp {
OTX2_CPT_EGRP_SE = 0,
OTX2_CPT_EGRP_SE_IE = 1,
OTX2_CPT_EGRP_AE = 2
};
struct rte_cryptodev_ops otx2_cpt_ops;