cryptodev: introduce CPU crypto API

[dpdk.git] / lib / librte_cryptodev / rte_cryptodev.c

diff --git a/lib/librte_cryptodev/rte_cryptodev.c b/lib/librte_cryptodev/rte_cryptodev.c
index 43bc335..6d1d0e9 100644 (file)
--- a/lib/librte_cryptodev/rte_cryptodev.c
+++ b/lib/librte_cryptodev/rte_cryptodev.c
@@ -1,5 +1,5 @@
 /* SPDX-License-Identifier: BSD-3-Clause
- * Copyright(c) 2015-2017 Intel Corporation
+ * Copyright(c) 2015-2020 Intel Corporation
  */
 
 #include <sys/types.h>
@@ -50,8 +50,7 @@ struct rte_cryptodev *rte_cryptodevs = rte_crypto_devices;
 static struct rte_cryptodev_global cryptodev_globals = {
                .devs                   = rte_crypto_devices,
                .data                   = { NULL },
-               .nb_devs                = 0,
-               .max_devs               = RTE_CRYPTO_MAX_DEVS
+               .nb_devs                = 0
 };
 
 /* spinlock for crypto device callbacks */
@@ -174,6 +173,8 @@ const char *rte_crypto_asym_xform_strings[] = {
        [RTE_CRYPTO_ASYM_XFORM_MODINV]  = "modinv",
        [RTE_CRYPTO_ASYM_XFORM_DH]      = "dh",
        [RTE_CRYPTO_ASYM_XFORM_DSA]     = "dsa",
+       [RTE_CRYPTO_ASYM_XFORM_ECDSA]   = "ecdsa",
+       [RTE_CRYPTO_ASYM_XFORM_ECPM]    = "ecpm",
 };
 
 /**
@@ -492,6 +493,8 @@ rte_cryptodev_get_feature_name(uint64_t flag)
                return "RSA_PRIV_OP_KEY_QT";
        case RTE_CRYPTODEV_FF_DIGEST_ENCRYPTED:
                return "DIGEST_ENCRYPTED";
+       case RTE_CRYPTODEV_FF_SYM_CPU_CRYPTO:
+               return "SYM_CPU_CRYPTO";
        default:
                return NULL;
        }
@@ -512,7 +515,7 @@ rte_cryptodev_pmd_get_named_dev(const char *name)
        if (name == NULL)
                return NULL;
 
-       for (i = 0; i < cryptodev_globals.max_devs; i++) {
+       for (i = 0; i < RTE_CRYPTO_MAX_DEVS; i++) {
                dev = &cryptodev_globals.devs[i];
 
                if ((dev->attached == RTE_CRYPTODEV_ATTACHED) &&
@@ -523,12 +526,21 @@ rte_cryptodev_pmd_get_named_dev(const char *name)
        return NULL;
 }
 
+static inline uint8_t
+rte_cryptodev_is_valid_device_data(uint8_t dev_id)
+{
+       if (rte_crypto_devices[dev_id].data == NULL)
+               return 0;
+
+       return 1;
+}
+
 unsigned int
 rte_cryptodev_pmd_is_valid_dev(uint8_t dev_id)
 {
        struct rte_cryptodev *dev = NULL;
 
-       if (dev_id >= cryptodev_globals.nb_devs)
+       if (!rte_cryptodev_is_valid_device_data(dev_id))
                return 0;
 
        dev = rte_cryptodev_pmd_get_dev(dev_id);
@@ -547,12 +559,15 @@ rte_cryptodev_get_dev_id(const char *name)
        if (name == NULL)
                return -1;
 
-       for (i = 0; i < cryptodev_globals.nb_devs; i++)
+       for (i = 0; i < RTE_CRYPTO_MAX_DEVS; i++) {
+               if (!rte_cryptodev_is_valid_device_data(i))
+                       continue;
                if ((strcmp(cryptodev_globals.devs[i].data->name, name)
                                == 0) &&
                                (cryptodev_globals.devs[i].attached ==
                                                RTE_CRYPTODEV_ATTACHED))
                        return i;
+       }
 
        return -1;
 }
@@ -568,7 +583,7 @@ rte_cryptodev_device_count_by_driver(uint8_t driver_id)
 {
        uint8_t i, dev_count = 0;
 
-       for (i = 0; i < cryptodev_globals.max_devs; i++)
+       for (i = 0; i < RTE_CRYPTO_MAX_DEVS; i++)
                if (cryptodev_globals.devs[i].driver_id == driver_id &&
                        cryptodev_globals.devs[i].attached ==
                                        RTE_CRYPTODEV_ATTACHED)
@@ -583,9 +598,10 @@ rte_cryptodev_devices_get(const char *driver_name, uint8_t *devices,
 {
        uint8_t i, count = 0;
        struct rte_cryptodev *devs = cryptodev_globals.devs;
-       uint8_t max_devs = cryptodev_globals.max_devs;
 
-       for (i = 0; i < max_devs && count < nb_devices; i++) {
+       for (i = 0; i < RTE_CRYPTO_MAX_DEVS && count < nb_devices; i++) {
+               if (!rte_cryptodev_is_valid_device_data(i))
+                       continue;
 
                if (devs[i].attached == RTE_CRYPTODEV_ATTACHED) {
                        int cmp;
@@ -725,12 +741,14 @@ rte_cryptodev_pmd_allocate(const char *name, int socket_id)
 
                cryptodev->data = *cryptodev_data;
 
-               strlcpy(cryptodev->data->name, name,
-                       RTE_CRYPTODEV_NAME_MAX_LEN);
+               if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+                       strlcpy(cryptodev->data->name, name,
+                               RTE_CRYPTODEV_NAME_MAX_LEN);
 
-               cryptodev->data->dev_id = dev_id;
-               cryptodev->data->socket_id = socket_id;
-               cryptodev->data->dev_started = 0;
+                       cryptodev->data->dev_id = dev_id;
+                       cryptodev->data->socket_id = socket_id;
+                       cryptodev->data->dev_started = 0;
+               }
 
                /* init user callbacks */
                TAILQ_INIT(&(cryptodev->link_intr_cbs));
@@ -1099,7 +1117,7 @@ rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info)
 {
        struct rte_cryptodev *dev;
 
-       if (dev_id >= cryptodev_globals.nb_devs) {
+       if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
                CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
                return;
        }
@@ -1602,6 +1620,37 @@ rte_cryptodev_sym_session_get_user_data(
        return (void *)(sess->sess_data + sess->nb_drivers);
 }
 
+static inline void
+sym_crypto_fill_status(struct rte_crypto_sym_vec *vec, int32_t errnum)
+{
+       uint32_t i;
+       for (i = 0; i < vec->num; i++)
+               vec->status[i] = errnum;
+}
+
+uint32_t
+rte_cryptodev_sym_cpu_crypto_process(uint8_t dev_id,
+       struct rte_cryptodev_sym_session *sess, union rte_crypto_sym_ofs ofs,
+       struct rte_crypto_sym_vec *vec)
+{
+       struct rte_cryptodev *dev;
+
+       if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
+               sym_crypto_fill_status(vec, EINVAL);
+               return 0;
+       }
+
+       dev = rte_cryptodev_pmd_get_dev(dev_id);
+
+       if (*dev->dev_ops->sym_cpu_process == NULL ||
+               !(dev->feature_flags & RTE_CRYPTODEV_FF_SYM_CPU_CRYPTO)) {
+               sym_crypto_fill_status(vec, ENOTSUP);
+               return 0;
+       }
+
+       return dev->dev_ops->sym_cpu_process(dev, sess, ofs, vec);
+}
+
 /** Initialise rte_crypto_op mempool element */
 static void
 rte_crypto_op_init(struct rte_mempool *mempool,