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>

diff --git a/drivers/crypto/octeontx2/otx2_cryptodev_ops.c b/drivers/crypto/octeontx2/otx2_cryptodev_ops.c
index f8d203e..65101b0 100644 (file)
--- a/drivers/crypto/octeontx2/otx2_cryptodev_ops.c
+++ b/drivers/crypto/octeontx2/otx2_cryptodev_ops.c
@@ -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

diff --git a/drivers/crypto/octeontx2/otx2_cryptodev_ops.h b/drivers/crypto/octeontx2/otx2_cryptodev_ops.h
index ba93a66..a2724f7 100644 (file)
--- a/drivers/crypto/octeontx2/otx2_cryptodev_ops.h
+++ b/drivers/crypto/octeontx2/otx2_cryptodev_ops.h
@@ -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;