crypto/octeontx: add crypto adapter data path
[dpdk.git] / drivers / crypto / octeontx / otx_cryptodev_ops.c
index d75f4b5..2fe04eb 100644 (file)
@@ -6,6 +6,8 @@
 #include <rte_bus_pci.h>
 #include <rte_cryptodev.h>
 #include <rte_cryptodev_pmd.h>
+#include <rte_eventdev.h>
+#include <rte_event_crypto_adapter.h>
 #include <rte_errno.h>
 #include <rte_malloc.h>
 #include <rte_mempool.h>
@@ -21,6 +23,8 @@
 #include "cpt_ucode.h"
 #include "cpt_ucode_asym.h"
 
+#include "ssovf_worker.h"
+
 static uint64_t otx_fpm_iova[CPT_EC_ID_PMAX];
 
 /* Forward declarations */
@@ -412,15 +416,17 @@ otx_cpt_asym_session_clear(struct rte_cryptodev *dev,
        rte_mempool_put(sess_mp, priv);
 }
 
-static __rte_always_inline int32_t __rte_hot
+static __rte_always_inline void * __rte_hot
 otx_cpt_request_enqueue(struct cpt_instance *instance,
                        struct pending_queue *pqueue,
                        void *req, uint64_t cpt_inst_w7)
 {
        struct cpt_request_info *user_req = (struct cpt_request_info *)req;
 
-       if (unlikely(pqueue->pending_count >= DEFAULT_CMD_QLEN))
-               return -EAGAIN;
+       if (unlikely(pqueue->pending_count >= DEFAULT_CMD_QLEN)) {
+               rte_errno = EAGAIN;
+               return NULL;
+       }
 
        fill_cpt_inst(instance, req, cpt_inst_w7);
 
@@ -434,18 +440,12 @@ otx_cpt_request_enqueue(struct cpt_instance *instance,
        /* Default mode of software queue */
        mark_cpt_inst(instance);
 
-       pqueue->req_queue[pqueue->enq_tail] = (uintptr_t)user_req;
-
-       /* We will use soft queue length here to limit requests */
-       MOD_INC(pqueue->enq_tail, DEFAULT_CMD_QLEN);
-       pqueue->pending_count += 1;
-
        CPT_LOG_DP_DEBUG("Submitted NB cmd with request: %p "
                         "op: %p", user_req, user_req->op);
-       return 0;
+       return req;
 }
 
-static __rte_always_inline int __rte_hot
+static __rte_always_inline void * __rte_hot
 otx_cpt_enq_single_asym(struct cpt_instance *instance,
                        struct rte_crypto_op *op,
                        struct pending_queue *pqueue)
@@ -456,11 +456,13 @@ otx_cpt_enq_single_asym(struct cpt_instance *instance,
        struct cpt_asym_sess_misc *sess;
        uintptr_t *cop;
        void *mdata;
+       void *req;
        int ret;
 
        if (unlikely(rte_mempool_get(minfo->pool, &mdata) < 0)) {
                CPT_LOG_DP_ERR("Could not allocate meta buffer for request");
-               return -ENOMEM;
+               rte_errno = ENOMEM;
+               return NULL;
        }
 
        sess = get_asym_session_private_data(asym_op->session,
@@ -506,27 +508,26 @@ otx_cpt_enq_single_asym(struct cpt_instance *instance,
 
        default:
                op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
-               ret = -EINVAL;
+               rte_errno = EINVAL;
                goto req_fail;
        }
 
-       ret = otx_cpt_request_enqueue(instance, pqueue, params.req,
+       req = otx_cpt_request_enqueue(instance, pqueue, params.req,
                                      sess->cpt_inst_w7);
-
-       if (unlikely(ret)) {
+       if (unlikely(req == NULL)) {
                CPT_LOG_DP_ERR("Could not enqueue crypto req");
                goto req_fail;
        }
 
-       return 0;
+       return req;
 
 req_fail:
        free_op_meta(mdata, minfo->pool);
 
-       return ret;
+       return NULL;
 }
 
-static __rte_always_inline int __rte_hot
+static __rte_always_inline void * __rte_hot
 otx_cpt_enq_single_sym(struct cpt_instance *instance,
                       struct rte_crypto_op *op,
                       struct pending_queue *pqueue)
@@ -536,6 +537,7 @@ otx_cpt_enq_single_sym(struct cpt_instance *instance,
        struct cpt_request_info *prep_req;
        void *mdata = NULL;
        int ret = 0;
+       void *req;
        uint64_t cpt_op;
 
        sess = (struct cpt_sess_misc *)
@@ -554,23 +556,20 @@ otx_cpt_enq_single_sym(struct cpt_instance *instance,
        if (unlikely(ret)) {
                CPT_LOG_DP_ERR("prep cryto req : op %p, cpt_op 0x%x "
                               "ret 0x%x", op, (unsigned int)cpt_op, ret);
-               return ret;
+               return NULL;
        }
 
        /* Enqueue prepared instruction to h/w */
-       ret = otx_cpt_request_enqueue(instance, pqueue, prep_req,
+       req = otx_cpt_request_enqueue(instance, pqueue, prep_req,
                                      sess->cpt_inst_w7);
-
-       if (unlikely(ret)) {
+       if (unlikely(req == NULL))
                /* Buffer allocated for request preparation need to be freed */
                free_op_meta(mdata, instance->meta_info.pool);
-               return ret;
-       }
 
-       return 0;
+       return req;
 }
 
-static __rte_always_inline int __rte_hot
+static __rte_always_inline void * __rte_hot
 otx_cpt_enq_single_sym_sessless(struct cpt_instance *instance,
                                struct rte_crypto_op *op,
                                struct pending_queue *pend_q)
@@ -578,12 +577,15 @@ otx_cpt_enq_single_sym_sessless(struct cpt_instance *instance,
        const int driver_id = otx_cryptodev_driver_id;
        struct rte_crypto_sym_op *sym_op = op->sym;
        struct rte_cryptodev_sym_session *sess;
+       void *req;
        int ret;
 
        /* Create temporary session */
        sess = rte_cryptodev_sym_session_create(instance->sess_mp);
-       if (sess == NULL)
-               return -ENOMEM;
+       if (sess == NULL) {
+               rte_errno = ENOMEM;
+               return NULL;
+       }
 
        ret = sym_session_configure(driver_id, sym_op->xform, sess,
                                    instance->sess_mp_priv);
@@ -592,24 +594,24 @@ otx_cpt_enq_single_sym_sessless(struct cpt_instance *instance,
 
        sym_op->session = sess;
 
-       ret = otx_cpt_enq_single_sym(instance, op, pend_q);
+       req = otx_cpt_enq_single_sym(instance, op, pend_q);
 
-       if (unlikely(ret))
+       if (unlikely(req == NULL))
                goto priv_put;
 
-       return 0;
+       return req;
 
 priv_put:
        sym_session_clear(driver_id, sess);
 sess_put:
        rte_mempool_put(instance->sess_mp, sess);
-       return ret;
+       return NULL;
 }
 
 #define OP_TYPE_SYM            0
 #define OP_TYPE_ASYM           1
 
-static __rte_always_inline int __rte_hot
+static __rte_always_inline void *__rte_hot
 otx_cpt_enq_single(struct cpt_instance *inst,
                   struct rte_crypto_op *op,
                   struct pending_queue *pqueue,
@@ -631,7 +633,8 @@ otx_cpt_enq_single(struct cpt_instance *inst,
        }
 
        /* Should not reach here */
-       return -ENOTSUP;
+       rte_errno = ENOTSUP;
+       return NULL;
 }
 
 static  __rte_always_inline uint16_t __rte_hot
@@ -640,7 +643,7 @@ otx_cpt_pkt_enqueue(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops,
 {
        struct cpt_instance *instance = (struct cpt_instance *)qptr;
        uint16_t count;
-       int ret;
+       void *req;
        struct cpt_vf *cptvf = (struct cpt_vf *)instance;
        struct pending_queue *pqueue = &cptvf->pqueue;
 
@@ -652,10 +655,14 @@ otx_cpt_pkt_enqueue(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops,
        while (likely(count < nb_ops)) {
 
                /* Enqueue single op */
-               ret = otx_cpt_enq_single(instance, ops[count], pqueue, op_type);
+               req = otx_cpt_enq_single(instance, ops[count], pqueue, op_type);
 
-               if (unlikely(ret))
+               if (unlikely(req == NULL))
                        break;
+
+               pqueue->req_queue[pqueue->enq_tail] = (uintptr_t)req;
+               MOD_INC(pqueue->enq_tail, DEFAULT_CMD_QLEN);
+               pqueue->pending_count += 1;
                count++;
        }
        otx_cpt_ring_dbell(instance, count);
@@ -674,6 +681,80 @@ otx_cpt_enqueue_sym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
        return otx_cpt_pkt_enqueue(qptr, ops, nb_ops, OP_TYPE_SYM);
 }
 
+static __rte_always_inline void
+submit_request_to_sso(struct ssows *ws, uintptr_t req,
+                     struct rte_event *rsp_info)
+{
+       uint64_t add_work;
+
+       add_work = rsp_info->flow_id | (RTE_EVENT_TYPE_CRYPTODEV << 28) |
+                  ((uint64_t)(rsp_info->sched_type) << 32);
+
+       if (!rsp_info->sched_type)
+               ssows_head_wait(ws);
+
+       rte_atomic_thread_fence(__ATOMIC_RELEASE);
+       ssovf_store_pair(add_work, req, ws->grps[rsp_info->queue_id]);
+}
+
+static inline union rte_event_crypto_metadata *
+get_event_crypto_mdata(struct rte_crypto_op *op)
+{
+       union rte_event_crypto_metadata *ec_mdata;
+
+       if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION)
+               ec_mdata = rte_cryptodev_sym_session_get_user_data(
+                                                          op->sym->session);
+       else if (op->sess_type == RTE_CRYPTO_OP_SESSIONLESS &&
+                op->private_data_offset)
+               ec_mdata = (union rte_event_crypto_metadata *)
+                       ((uint8_t *)op + op->private_data_offset);
+       else
+               return NULL;
+
+       return ec_mdata;
+}
+
+uint16_t __rte_hot
+otx_crypto_adapter_enqueue(void *port, struct rte_crypto_op *op)
+{
+       union rte_event_crypto_metadata *ec_mdata;
+       struct cpt_instance *instance;
+       struct cpt_request_info *req;
+       struct rte_event *rsp_info;
+       uint8_t op_type, cdev_id;
+       uint16_t qp_id;
+
+       ec_mdata = get_event_crypto_mdata(op);
+       if (unlikely(ec_mdata == NULL)) {
+               rte_errno = EINVAL;
+               return 0;
+       }
+
+       cdev_id = ec_mdata->request_info.cdev_id;
+       qp_id = ec_mdata->request_info.queue_pair_id;
+       rsp_info = &ec_mdata->response_info;
+       instance = rte_cryptodevs[cdev_id].data->queue_pairs[qp_id];
+
+       if (unlikely(!instance->ca_enabled)) {
+               rte_errno = EINVAL;
+               return 0;
+       }
+
+       op_type = op->type == RTE_CRYPTO_OP_TYPE_SYMMETRIC ? OP_TYPE_SYM :
+                                                            OP_TYPE_ASYM;
+       req = otx_cpt_enq_single(instance, op,
+                                &((struct cpt_vf *)instance)->pqueue, op_type);
+       if (unlikely(req == NULL))
+               return 0;
+
+       otx_cpt_ring_dbell(instance, 1);
+       req->qp = instance;
+       submit_request_to_sso(port, (uintptr_t)req, rsp_info);
+
+       return 1;
+}
+
 static inline void
 otx_cpt_asym_rsa_op(struct rte_crypto_op *cop, struct cpt_request_info *req,
                    struct rte_crypto_rsa_xform *rsa_ctx)
@@ -820,6 +901,50 @@ otx_cpt_dequeue_post_process(struct rte_crypto_op *cop, uintptr_t *rsp,
        return;
 }
 
+static inline void
+free_sym_session_data(const struct cpt_instance *instance,
+                     struct rte_crypto_op *cop)
+{
+       void *sess_private_data_t = get_sym_session_private_data(
+               cop->sym->session, otx_cryptodev_driver_id);
+       memset(sess_private_data_t, 0, cpt_get_session_size());
+       memset(cop->sym->session, 0,
+              rte_cryptodev_sym_get_existing_header_session_size(
+                      cop->sym->session));
+       rte_mempool_put(instance->sess_mp_priv, sess_private_data_t);
+       rte_mempool_put(instance->sess_mp, cop->sym->session);
+       cop->sym->session = NULL;
+}
+
+static __rte_always_inline struct rte_crypto_op *
+otx_cpt_process_response(const struct cpt_instance *instance, uintptr_t *rsp,
+                        uint8_t cc, const uint8_t op_type)
+{
+       struct rte_crypto_op *cop;
+       void *metabuf;
+
+       metabuf = (void *)rsp[0];
+       cop = (void *)rsp[1];
+
+       /* Check completion code */
+       if (likely(cc == 0)) {
+               /* H/w success pkt. Post process */
+               otx_cpt_dequeue_post_process(cop, rsp, op_type);
+       } else if (cc == ERR_GC_ICV_MISCOMPARE) {
+               /* auth data mismatch */
+               cop->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
+       } else {
+               /* Error */
+               cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
+       }
+
+       if (unlikely(cop->sess_type == RTE_CRYPTO_OP_SESSIONLESS))
+               free_sym_session_data(instance, cop);
+       free_op_meta(metabuf, instance->meta_info.pool);
+
+       return cop;
+}
+
 static __rte_always_inline uint16_t __rte_hot
 otx_cpt_pkt_dequeue(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops,
                    const uint8_t op_type)
@@ -832,9 +957,6 @@ otx_cpt_pkt_dequeue(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops,
        uint8_t ret;
        int nb_completed;
        struct pending_queue *pqueue = &cptvf->pqueue;
-       struct rte_crypto_op *cop;
-       void *metabuf;
-       uintptr_t *rsp;
 
        pcount = pqueue->pending_count;
        count = (nb_ops > pcount) ? pcount : nb_ops;
@@ -869,45 +991,11 @@ otx_cpt_pkt_dequeue(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops,
        nb_completed = i;
 
        for (i = 0; i < nb_completed; i++) {
-
-               rsp = (void *)ops[i];
-
                if (likely((i + 1) < nb_completed))
                        rte_prefetch0(ops[i+1]);
 
-               metabuf = (void *)rsp[0];
-               cop = (void *)rsp[1];
-
-               ops[i] = cop;
-
-               /* Check completion code */
-
-               if (likely(cc[i] == 0)) {
-                       /* H/w success pkt. Post process */
-                       otx_cpt_dequeue_post_process(cop, rsp, op_type);
-               } else if (cc[i] == ERR_GC_ICV_MISCOMPARE) {
-                       /* auth data mismatch */
-                       cop->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
-               } else {
-                       /* Error */
-                       cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
-               }
-
-               if (unlikely(cop->sess_type == RTE_CRYPTO_OP_SESSIONLESS)) {
-                       void *sess_private_data_t =
-                               get_sym_session_private_data(cop->sym->session,
-                                               otx_cryptodev_driver_id);
-                       memset(sess_private_data_t, 0,
-                                       cpt_get_session_size());
-                       memset(cop->sym->session, 0,
-                       rte_cryptodev_sym_get_existing_header_session_size(
-                                       cop->sym->session));
-                       rte_mempool_put(instance->sess_mp_priv,
-                                       sess_private_data_t);
-                       rte_mempool_put(instance->sess_mp, cop->sym->session);
-                       cop->sym->session = NULL;
-               }
-               free_op_meta(metabuf, instance->meta_info.pool);
+               ops[i] = otx_cpt_process_response(instance, (void *)ops[i],
+                                                 cc[i], op_type);
        }
 
        return nb_completed;
@@ -925,6 +1013,32 @@ otx_cpt_dequeue_sym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
        return otx_cpt_pkt_dequeue(qptr, ops, nb_ops, OP_TYPE_SYM);
 }
 
+uintptr_t __rte_hot
+otx_crypto_adapter_dequeue(uintptr_t get_work1)
+{
+       const struct cpt_instance *instance;
+       struct cpt_request_info *req;
+       struct rte_crypto_op *cop;
+       uint8_t cc, op_type;
+       uintptr_t *rsp;
+
+       req = (struct cpt_request_info *)get_work1;
+       instance = req->qp;
+       rsp = req->op;
+       cop = (void *)rsp[1];
+       op_type = cop->type == RTE_CRYPTO_OP_TYPE_SYMMETRIC ? OP_TYPE_SYM :
+                                                             OP_TYPE_ASYM;
+
+       do {
+               cc = check_nb_command_id(
+                       req, (struct cpt_instance *)(uintptr_t)instance);
+       } while (cc == ERR_REQ_PENDING);
+
+       cop = otx_cpt_process_response(instance, (void *)req->op, cc, op_type);
+
+       return (uintptr_t)(cop);
+}
+
 static struct rte_cryptodev_ops cptvf_ops = {
        /* Device related operations */
        .dev_configure = otx_cpt_dev_config,