numam-dpdk/drivers/crypto/qat/rte_qat_cryptodev.c

/*-
 *   BSD LICENSE
 *
 *   Copyright(c) 2015-2016 Intel Corporation. All rights reserved.
 *   All rights reserved.
 *
 *   Redistribution and use in source and binary forms, with or without
 *   modification, are permitted provided that the following conditions
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 *
 *     * 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 Intel Corporation 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.
 */

#include <rte_common.h>
#include <rte_dev.h>
#include <rte_malloc.h>
#include <rte_cryptodev_pmd.h>

#include "qat_crypto.h"
#include "qat_logs.h"

static const struct rte_cryptodev_capabilities qat_cpm16_capabilities[] = {
	QAT_BASE_CPM16_SYM_CAPABILITIES,
	RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
};

static const struct rte_cryptodev_capabilities qat_cpm17_capabilities[] = {
	QAT_BASE_CPM16_SYM_CAPABILITIES,
	QAT_EXTRA_CPM17_SYM_CAPABILITIES,
	RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
};

static struct rte_cryptodev_ops crypto_qat_ops = {

		/* Device related operations */
		.dev_configure		= qat_dev_config,
		.dev_start		= qat_dev_start,
		.dev_stop		= qat_dev_stop,
		.dev_close		= qat_dev_close,
		.dev_infos_get		= qat_dev_info_get,

		.stats_get		= qat_crypto_sym_stats_get,
		.stats_reset		= qat_crypto_sym_stats_reset,
		.queue_pair_setup	= qat_crypto_sym_qp_setup,
		.queue_pair_release	= qat_crypto_sym_qp_release,
		.queue_pair_start	= NULL,
		.queue_pair_stop	= NULL,
		.queue_pair_count	= NULL,

		/* Crypto related operations */
		.session_get_size	= qat_crypto_sym_get_session_private_size,
		.session_configure	= qat_crypto_sym_configure_session,
		.session_initialize	= qat_crypto_sym_session_init,
		.session_clear		= qat_crypto_sym_clear_session
};

/*
 * The set of PCI devices this driver supports
 */

static const struct rte_pci_id pci_id_qat_map[] = {
		{
			RTE_PCI_DEVICE(0x8086, 0x0443),
		},
		{
			RTE_PCI_DEVICE(0x8086, 0x37c9),
		},
		{
			RTE_PCI_DEVICE(0x8086, 0x19e3),
		},
		{.device_id = 0},
};

static int
crypto_qat_dev_init(__attribute__((unused)) struct rte_cryptodev_driver *crypto_drv,
			struct rte_cryptodev *cryptodev)
{
	struct qat_pmd_private *internals;

	PMD_INIT_FUNC_TRACE();
	PMD_DRV_LOG(DEBUG, "Found crypto device at %02x:%02x.%x",
		RTE_DEV_TO_PCI(cryptodev->device)->addr.bus,
		RTE_DEV_TO_PCI(cryptodev->device)->addr.devid,
		RTE_DEV_TO_PCI(cryptodev->device)->addr.function);

	cryptodev->dev_type = RTE_CRYPTODEV_QAT_SYM_PMD;
	cryptodev->dev_ops = &crypto_qat_ops;

	cryptodev->enqueue_burst = qat_pmd_enqueue_op_burst;
	cryptodev->dequeue_burst = qat_pmd_dequeue_op_burst;

	cryptodev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
			RTE_CRYPTODEV_FF_HW_ACCELERATED |
			RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
			RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER;

	internals = cryptodev->data->dev_private;
	internals->max_nb_sessions = RTE_QAT_PMD_MAX_NB_SESSIONS;
	switch (RTE_DEV_TO_PCI(cryptodev->device)->id.device_id) {
	case 0x0443:
		internals->qat_dev_capabilities = qat_cpm16_capabilities;
		break;
	case 0x37c9:
	case 0x19e3:
		internals->qat_dev_capabilities = qat_cpm17_capabilities;
		break;
	default:
		PMD_DRV_LOG(ERR,
			"Invalid dev_id, can't determine capabilities");
		break;
	}

	/*
	 * For secondary processes, we don't initialise any further as primary
	 * has already done this work. Only check we don't need a different
	 * RX function
	 */
	if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
		PMD_DRV_LOG(DEBUG, "Device already initialised by primary process");
		return 0;
	}

	return 0;
}

static struct rte_cryptodev_driver rte_qat_pmd = {
	.pci_drv = {
		.id_table = pci_id_qat_map,
		.drv_flags = RTE_PCI_DRV_NEED_MAPPING,
		.probe = rte_cryptodev_pci_probe,
		.remove = rte_cryptodev_pci_remove,
	},
	.cryptodev_init = crypto_qat_dev_init,
	.dev_private_size = sizeof(struct qat_pmd_private),
};

RTE_PMD_REGISTER_PCI(CRYPTODEV_NAME_QAT_SYM_PMD, rte_qat_pmd.pci_drv);
RTE_PMD_REGISTER_PCI_TABLE(CRYPTODEV_NAME_QAT_SYM_PMD, pci_id_qat_map);