crypto/ccp: support device init

[dpdk.git] / drivers / crypto / ccp / rte_ccp_pmd.c

diff --git a/drivers/crypto/ccp/rte_ccp_pmd.c b/drivers/crypto/ccp/rte_ccp_pmd.c
index bc8c449..8afdb91 100644 (file)
--- a/drivers/crypto/ccp/rte_ccp_pmd.c
+++ b/drivers/crypto/ccp/rte_ccp_pmd.c
@@ -2,23 +2,170 @@
  *   Copyright(c) 2018 Advanced Micro Devices, Inc. All rights reserved.
  */
 
+#include <rte_bus_pci.h>
 #include <rte_bus_vdev.h>
+#include <rte_common.h>
+#include <rte_config.h>
 #include <rte_cryptodev.h>
 #include <rte_cryptodev_pmd.h>
+#include <rte_pci.h>
+#include <rte_dev.h>
+#include <rte_malloc.h>
 
+#include "ccp_dev.h"
+#include "ccp_pmd_private.h"
+
+/**
+ * Global static parameter used to find if CCP device is already initialized.
+ */
+static unsigned int ccp_pmd_init_done;
 uint8_t ccp_cryptodev_driver_id;
 
+static uint16_t
+ccp_pmd_enqueue_burst(void *queue_pair __rte_unused,
+                     struct rte_crypto_op **ops __rte_unused,
+                     uint16_t nb_ops __rte_unused)
+{
+       uint16_t enq_cnt = 0;
+
+       return enq_cnt;
+}
+
+static uint16_t
+ccp_pmd_dequeue_burst(void *queue_pair __rte_unused,
+                     struct rte_crypto_op **ops __rte_unused,
+                     uint16_t nb_ops __rte_unused)
+{
+       uint16_t nb_dequeued = 0;
+
+       return nb_dequeued;
+}
+
+/*
+ * The set of PCI devices this driver supports
+ */
+static struct rte_pci_id ccp_pci_id[] = {
+       {
+               RTE_PCI_DEVICE(0x1022, 0x1456), /* AMD CCP-5a */
+       },
+       {
+               RTE_PCI_DEVICE(0x1022, 0x1468), /* AMD CCP-5b */
+       },
+       {.device_id = 0},
+};
+
 /** Remove ccp pmd */
 static int
-cryptodev_ccp_remove(struct rte_vdev_device *dev __rte_unused)
+cryptodev_ccp_remove(struct rte_vdev_device *dev)
 {
+       const char *name;
+
+       ccp_pmd_init_done = 0;
+       name = rte_vdev_device_name(dev);
+       if (name == NULL)
+               return -EINVAL;
+
+       RTE_LOG(INFO, PMD, "Closing ccp device %s on numa socket %u\n",
+                       name, rte_socket_id());
+
        return 0;
 }
 
+/** Create crypto device */
+static int
+cryptodev_ccp_create(const char *name,
+                    struct rte_vdev_device *vdev,
+                    struct rte_cryptodev_pmd_init_params *init_params)
+{
+       struct rte_cryptodev *dev;
+       struct ccp_private *internals;
+       uint8_t cryptodev_cnt = 0;
+
+       if (init_params->name[0] == '\0')
+               snprintf(init_params->name, sizeof(init_params->name),
+                               "%s", name);
+
+       dev = rte_cryptodev_pmd_create(init_params->name,
+                                      &vdev->device,
+                                      init_params);
+       if (dev == NULL) {
+               CCP_LOG_ERR("failed to create cryptodev vdev");
+               goto init_error;
+       }
+
+       cryptodev_cnt = ccp_probe_devices(ccp_pci_id);
+
+       if (cryptodev_cnt == 0) {
+               CCP_LOG_ERR("failed to detect CCP crypto device");
+               goto init_error;
+       }
+
+       printf("CCP : Crypto device count = %d\n", cryptodev_cnt);
+       dev->driver_id = ccp_cryptodev_driver_id;
+
+       /* register rx/tx burst functions for data path */
+       dev->dev_ops = ccp_pmd_ops;
+       dev->enqueue_burst = ccp_pmd_enqueue_burst;
+       dev->dequeue_burst = ccp_pmd_dequeue_burst;
+
+       dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
+                       RTE_CRYPTODEV_FF_HW_ACCELERATED |
+                       RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING;
+
+       internals = dev->data->dev_private;
+
+       internals->max_nb_qpairs = init_params->max_nb_queue_pairs;
+       internals->max_nb_sessions = init_params->max_nb_sessions;
+       internals->crypto_num_dev = cryptodev_cnt;
+
+       return 0;
+
+init_error:
+       CCP_LOG_ERR("driver %s: %s() failed",
+                   init_params->name, __func__);
+       cryptodev_ccp_remove(vdev);
+
+       return -EFAULT;
+}
+
 /** Probe ccp pmd */
 static int
-cryptodev_ccp_probe(struct rte_vdev_device *vdev __rte_unused)
+cryptodev_ccp_probe(struct rte_vdev_device *vdev)
 {
+       int rc = 0;
+       const char *name;
+       struct rte_cryptodev_pmd_init_params init_params = {
+               "",
+               sizeof(struct ccp_private),
+               rte_socket_id(),
+               CCP_PMD_MAX_QUEUE_PAIRS,
+               RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS
+       };
+       const char *input_args;
+
+       if (ccp_pmd_init_done) {
+               RTE_LOG(INFO, PMD, "CCP PMD already initialized\n");
+               return -EFAULT;
+       }
+       name = rte_vdev_device_name(vdev);
+       if (name == NULL)
+               return -EINVAL;
+
+       input_args = rte_vdev_device_args(vdev);
+       rte_cryptodev_pmd_parse_input_args(&init_params, input_args);
+       init_params.max_nb_queue_pairs = CCP_PMD_MAX_QUEUE_PAIRS;
+
+       RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", name,
+                       init_params.socket_id);
+       RTE_LOG(INFO, PMD, "Max number of queue pairs = %d\n",
+                       init_params.max_nb_queue_pairs);
+       RTE_LOG(INFO, PMD, "Max number of sessions = %d\n",
+                       init_params.max_nb_sessions);
+
+       rc = cryptodev_ccp_create(name, vdev, &init_params);
+       if (rc)
+               return rc;
+       ccp_pmd_init_done = 1;
        return 0;
 }