--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2017 Intel Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of the copyright holder nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _RTE_CRYPTODEV_PCI_H_
+#define _RTE_CRYPTODEV_PCI_H_
+
+#include <rte_pci.h>
+#include "rte_cryptodev.h"
+
+/**
+ * Initialisation function of a crypto driver invoked for each matching
+ * crypto PCI device detected during the PCI probing phase.
+ *
+ * @param dev The dev pointer is the address of the *rte_cryptodev*
+ * structure associated with the matching device and which
+ * has been [automatically] allocated in the
+ * *rte_crypto_devices* array.
+ *
+ * @return
+ * - 0: Success, the device is properly initialised by the driver.
+ * In particular, the driver MUST have set up the *dev_ops* pointer
+ * of the *dev* structure.
+ * - <0: Error code of the device initialisation failure.
+ */
+typedef int (*cryptodev_pci_init_t)(struct rte_cryptodev *dev);
+
+/**
+ * Finalisation function of a driver invoked for each matching
+ * PCI device detected during the PCI closing phase.
+ *
+ * @param dev The dev pointer is the address of the *rte_cryptodev*
+ * structure associated with the matching device and which
+ * has been [automatically] allocated in the
+ * *rte_crypto_devices* array.
+ *
+ * * @return
+ * - 0: Success, the device is properly finalised by the driver.
+ * In particular, the driver MUST free the *dev_ops* pointer
+ * of the *dev* structure.
+ * - <0: Error code of the device initialisation failure.
+ */
+typedef int (*cryptodev_pci_uninit_t)(struct rte_cryptodev *dev);
+
+/**
+ * @internal
+ * Wrapper for use by pci drivers as a .probe function to attach to a crypto
+ * interface.
+ */
+int
+rte_cryptodev_pci_generic_probe(struct rte_pci_device *pci_dev,
+ size_t private_data_size,
+ cryptodev_pci_init_t dev_init);
+
+/**
+ * @internal
+ * Wrapper for use by pci drivers as a .remove function to detach a crypto
+ * interface.
+ */
+int
+rte_cryptodev_pci_generic_remove(struct rte_pci_device *pci_dev,
+ cryptodev_pci_uninit_t dev_uninit);
+
+#endif /* _RTE_CRYPTODEV_PCI_H_ */
#include <rte_malloc.h>
#include "rte_cryptodev_vdev.h"
+#include "rte_cryptodev_pci.h"
#include "rte_cryptodev_pmd.h"
/**
rte_kvargs_free(kvlist);
return ret;
}
+
+int
+rte_cryptodev_pci_generic_probe(struct rte_pci_device *pci_dev,
+ size_t private_data_size,
+ cryptodev_pci_init_t dev_init)
+{
+ struct rte_cryptodev *cryptodev;
+
+ char cryptodev_name[RTE_CRYPTODEV_NAME_MAX_LEN];
+
+ int retval;
+
+ rte_pci_device_name(&pci_dev->addr, cryptodev_name,
+ sizeof(cryptodev_name));
+
+ cryptodev = rte_cryptodev_pmd_allocate(cryptodev_name, rte_socket_id());
+ if (cryptodev == NULL)
+ return -ENOMEM;
+
+ if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+ cryptodev->data->dev_private =
+ rte_zmalloc_socket(
+ "cryptodev private structure",
+ private_data_size,
+ RTE_CACHE_LINE_SIZE,
+ rte_socket_id());
+
+ if (cryptodev->data->dev_private == NULL)
+ rte_panic("Cannot allocate memzone for private "
+ "device data");
+ }
+
+ cryptodev->device = &pci_dev->device;
+
+ /* init user callbacks */
+ TAILQ_INIT(&(cryptodev->link_intr_cbs));
+
+ /* Invoke PMD device initialization function */
+ RTE_FUNC_PTR_OR_ERR_RET(*dev_init, -EINVAL);
+ retval = dev_init(cryptodev);
+ if (retval == 0)
+ return 0;
+
+ CDEV_LOG_ERR("driver %s: crypto_dev_init(vendor_id=0x%x device_id=0x%x)"
+ " failed", pci_dev->device.driver->name,
+ (unsigned int) pci_dev->id.vendor_id,
+ (unsigned int) pci_dev->id.device_id);
+
+ if (rte_eal_process_type() == RTE_PROC_PRIMARY)
+ rte_free(cryptodev->data->dev_private);
+
+ /* free crypto device */
+ rte_cryptodev_pmd_release_device(cryptodev);
+
+ return -ENXIO;
+}
+
+int
+rte_cryptodev_pci_generic_remove(struct rte_pci_device *pci_dev,
+ cryptodev_pci_uninit_t dev_uninit)
+{
+ struct rte_cryptodev *cryptodev;
+ char cryptodev_name[RTE_CRYPTODEV_NAME_MAX_LEN];
+ int ret;
+
+ if (pci_dev == NULL)
+ return -EINVAL;
+
+ rte_pci_device_name(&pci_dev->addr, cryptodev_name,
+ sizeof(cryptodev_name));
+
+ cryptodev = rte_cryptodev_pmd_get_named_dev(cryptodev_name);
+ if (cryptodev == NULL)
+ return -ENODEV;
+
+ /* Invoke PMD device uninit function */
+ if (dev_uninit) {
+ ret = dev_uninit(cryptodev);
+ if (ret)
+ return ret;
+ }
+
+ /* free crypto device */
+ rte_cryptodev_pmd_release_device(cryptodev);
+
+ if (rte_eal_process_type() == RTE_PROC_PRIMARY)
+ rte_free(cryptodev->data->dev_private);
+
+ cryptodev->device = NULL;
+ cryptodev->data = NULL;
+
+ return 0;
+}
git.droids-corp.org / dpdk.git / commitdiff