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path: root/drivers/crypto/ccp/rte_ccp_pmd.c
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Diffstat (limited to 'drivers/crypto/ccp/rte_ccp_pmd.c')
-rw-r--r--drivers/crypto/ccp/rte_ccp_pmd.c397
1 files changed, 397 insertions, 0 deletions
diff --git a/drivers/crypto/ccp/rte_ccp_pmd.c b/drivers/crypto/ccp/rte_ccp_pmd.c
new file mode 100644
index 00000000..92d8a955
--- /dev/null
+++ b/drivers/crypto/ccp/rte_ccp_pmd.c
@@ -0,0 +1,397 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * 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_crypto.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;
+
+struct ccp_pmd_init_params {
+ struct rte_cryptodev_pmd_init_params def_p;
+ bool auth_opt;
+};
+
+#define CCP_CRYPTODEV_PARAM_NAME ("name")
+#define CCP_CRYPTODEV_PARAM_SOCKET_ID ("socket_id")
+#define CCP_CRYPTODEV_PARAM_MAX_NB_QP ("max_nb_queue_pairs")
+#define CCP_CRYPTODEV_PARAM_AUTH_OPT ("ccp_auth_opt")
+
+const char *ccp_pmd_valid_params[] = {
+ CCP_CRYPTODEV_PARAM_NAME,
+ CCP_CRYPTODEV_PARAM_SOCKET_ID,
+ CCP_CRYPTODEV_PARAM_MAX_NB_QP,
+ CCP_CRYPTODEV_PARAM_AUTH_OPT,
+};
+
+/** ccp pmd auth option */
+enum ccp_pmd_auth_opt {
+ CCP_PMD_AUTH_OPT_CCP = 0,
+ CCP_PMD_AUTH_OPT_CPU,
+};
+
+/** parse integer from integer argument */
+static int
+parse_integer_arg(const char *key __rte_unused,
+ const char *value, void *extra_args)
+{
+ int *i = (int *) extra_args;
+
+ *i = atoi(value);
+ if (*i < 0) {
+ CCP_LOG_ERR("Argument has to be positive.\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/** parse name argument */
+static int
+parse_name_arg(const char *key __rte_unused,
+ const char *value, void *extra_args)
+{
+ struct rte_cryptodev_pmd_init_params *params = extra_args;
+
+ if (strlen(value) >= RTE_CRYPTODEV_NAME_MAX_LEN - 1) {
+ CCP_LOG_ERR("Invalid name %s, should be less than "
+ "%u bytes.\n", value,
+ RTE_CRYPTODEV_NAME_MAX_LEN - 1);
+ return -EINVAL;
+ }
+
+ strncpy(params->name, value, RTE_CRYPTODEV_NAME_MAX_LEN);
+
+ return 0;
+}
+
+/** parse authentication operation option */
+static int
+parse_auth_opt_arg(const char *key __rte_unused,
+ const char *value, void *extra_args)
+{
+ struct ccp_pmd_init_params *params = extra_args;
+ int i;
+
+ i = atoi(value);
+ if (i < CCP_PMD_AUTH_OPT_CCP || i > CCP_PMD_AUTH_OPT_CPU) {
+ CCP_LOG_ERR("Invalid ccp pmd auth option. "
+ "0->auth on CCP(default), "
+ "1->auth on CPU\n");
+ return -EINVAL;
+ }
+ params->auth_opt = i;
+ return 0;
+}
+
+static int
+ccp_pmd_parse_input_args(struct ccp_pmd_init_params *params,
+ const char *input_args)
+{
+ struct rte_kvargs *kvlist = NULL;
+ int ret = 0;
+
+ if (params == NULL)
+ return -EINVAL;
+
+ if (input_args) {
+ kvlist = rte_kvargs_parse(input_args,
+ ccp_pmd_valid_params);
+ if (kvlist == NULL)
+ return -1;
+
+ ret = rte_kvargs_process(kvlist,
+ CCP_CRYPTODEV_PARAM_MAX_NB_QP,
+ &parse_integer_arg,
+ &params->def_p.max_nb_queue_pairs);
+ if (ret < 0)
+ goto free_kvlist;
+
+ ret = rte_kvargs_process(kvlist,
+ CCP_CRYPTODEV_PARAM_SOCKET_ID,
+ &parse_integer_arg,
+ &params->def_p.socket_id);
+ if (ret < 0)
+ goto free_kvlist;
+
+ ret = rte_kvargs_process(kvlist,
+ CCP_CRYPTODEV_PARAM_NAME,
+ &parse_name_arg,
+ &params->def_p);
+ if (ret < 0)
+ goto free_kvlist;
+
+ ret = rte_kvargs_process(kvlist,
+ CCP_CRYPTODEV_PARAM_AUTH_OPT,
+ &parse_auth_opt_arg,
+ params);
+ if (ret < 0)
+ goto free_kvlist;
+
+ }
+
+free_kvlist:
+ rte_kvargs_free(kvlist);
+ return ret;
+}
+
+static struct ccp_session *
+get_ccp_session(struct ccp_qp *qp, struct rte_crypto_op *op)
+{
+ struct ccp_session *sess = NULL;
+
+ if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) {
+ if (unlikely(op->sym->session == NULL))
+ return NULL;
+
+ sess = (struct ccp_session *)
+ get_sym_session_private_data(
+ op->sym->session,
+ ccp_cryptodev_driver_id);
+ } else if (op->sess_type == RTE_CRYPTO_OP_SESSIONLESS) {
+ void *_sess;
+ void *_sess_private_data = NULL;
+ struct ccp_private *internals;
+
+ if (rte_mempool_get(qp->sess_mp, &_sess))
+ return NULL;
+ if (rte_mempool_get(qp->sess_mp, (void **)&_sess_private_data))
+ return NULL;
+
+ sess = (struct ccp_session *)_sess_private_data;
+
+ internals = (struct ccp_private *)qp->dev->data->dev_private;
+ if (unlikely(ccp_set_session_parameters(sess, op->sym->xform,
+ internals) != 0)) {
+ rte_mempool_put(qp->sess_mp, _sess);
+ rte_mempool_put(qp->sess_mp, _sess_private_data);
+ sess = NULL;
+ }
+ op->sym->session = (struct rte_cryptodev_sym_session *)_sess;
+ set_sym_session_private_data(op->sym->session,
+ ccp_cryptodev_driver_id,
+ _sess_private_data);
+ }
+
+ return sess;
+}
+
+static uint16_t
+ccp_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops,
+ uint16_t nb_ops)
+{
+ struct ccp_session *sess = NULL;
+ struct ccp_qp *qp = queue_pair;
+ struct ccp_queue *cmd_q;
+ struct rte_cryptodev *dev = qp->dev;
+ uint16_t i, enq_cnt = 0, slots_req = 0;
+
+ if (nb_ops == 0)
+ return 0;
+
+ if (unlikely(rte_ring_full(qp->processed_pkts) != 0))
+ return 0;
+
+ for (i = 0; i < nb_ops; i++) {
+ sess = get_ccp_session(qp, ops[i]);
+ if (unlikely(sess == NULL) && (i == 0)) {
+ qp->qp_stats.enqueue_err_count++;
+ return 0;
+ } else if (sess == NULL) {
+ nb_ops = i;
+ break;
+ }
+ slots_req += ccp_compute_slot_count(sess);
+ }
+
+ cmd_q = ccp_allot_queue(dev, slots_req);
+ if (unlikely(cmd_q == NULL))
+ return 0;
+
+ enq_cnt = process_ops_to_enqueue(qp, ops, cmd_q, nb_ops, slots_req);
+ qp->qp_stats.enqueued_count += enq_cnt;
+ return enq_cnt;
+}
+
+static uint16_t
+ccp_pmd_dequeue_burst(void *queue_pair, struct rte_crypto_op **ops,
+ uint16_t nb_ops)
+{
+ struct ccp_qp *qp = queue_pair;
+ uint16_t nb_dequeued = 0, i;
+
+ nb_dequeued = process_ops_to_dequeue(qp, ops, nb_ops);
+
+ /* Free session if a session-less crypto op */
+ for (i = 0; i < nb_dequeued; i++)
+ if (unlikely(ops[i]->sess_type ==
+ RTE_CRYPTO_OP_SESSIONLESS)) {
+ rte_mempool_put(qp->sess_mp,
+ ops[i]->sym->session);
+ ops[i]->sym->session = NULL;
+ }
+ qp->qp_stats.dequeued_count += nb_dequeued;
+
+ 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)
+{
+ 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 ccp_pmd_init_params *init_params)
+{
+ struct rte_cryptodev *dev;
+ struct ccp_private *internals;
+ uint8_t cryptodev_cnt = 0;
+
+ if (init_params->def_p.name[0] == '\0')
+ snprintf(init_params->def_p.name,
+ sizeof(init_params->def_p.name),
+ "%s", name);
+
+ dev = rte_cryptodev_pmd_create(init_params->def_p.name,
+ &vdev->device,
+ &init_params->def_p);
+ 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->def_p.max_nb_queue_pairs;
+ internals->auth_opt = init_params->auth_opt;
+ internals->crypto_num_dev = cryptodev_cnt;
+
+ return 0;
+
+init_error:
+ CCP_LOG_ERR("driver %s: %s() failed",
+ init_params->def_p.name, __func__);
+ cryptodev_ccp_remove(vdev);
+
+ return -EFAULT;
+}
+
+/** Probe ccp pmd */
+static int
+cryptodev_ccp_probe(struct rte_vdev_device *vdev)
+{
+ int rc = 0;
+ const char *name;
+ struct ccp_pmd_init_params init_params = {
+ .def_p = {
+ "",
+ sizeof(struct ccp_private),
+ rte_socket_id(),
+ CCP_PMD_MAX_QUEUE_PAIRS
+ },
+ .auth_opt = CCP_PMD_AUTH_OPT_CCP,
+ };
+ 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);
+ ccp_pmd_parse_input_args(&init_params, input_args);
+ init_params.def_p.max_nb_queue_pairs = CCP_PMD_MAX_QUEUE_PAIRS;
+
+ RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", name,
+ init_params.def_p.socket_id);
+ RTE_LOG(INFO, PMD, "Max number of queue pairs = %d\n",
+ init_params.def_p.max_nb_queue_pairs);
+ RTE_LOG(INFO, PMD, "Authentication offload to %s\n",
+ ((init_params.auth_opt == 0) ? "CCP" : "CPU"));
+
+ rc = cryptodev_ccp_create(name, vdev, &init_params);
+ if (rc)
+ return rc;
+ ccp_pmd_init_done = 1;
+ return 0;
+}
+
+static struct rte_vdev_driver cryptodev_ccp_pmd_drv = {
+ .probe = cryptodev_ccp_probe,
+ .remove = cryptodev_ccp_remove
+};
+
+static struct cryptodev_driver ccp_crypto_drv;
+
+RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_CCP_PMD, cryptodev_ccp_pmd_drv);
+RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_CCP_PMD,
+ "max_nb_queue_pairs=<int> "
+ "socket_id=<int> "
+ "ccp_auth_opt=<int>");
+RTE_PMD_REGISTER_CRYPTO_DRIVER(ccp_crypto_drv, cryptodev_ccp_pmd_drv.driver,
+ ccp_cryptodev_driver_id);