26c2e4ad5a
This patch add a mechanism for discovery of crypto device features and supported crypto operations and algorithms. It also provides a method for a crypto PMD to publish any data range limitations it may have for the operations and algorithms it supports. The parameter feature_flags added to rte_cryptodev struct is used to capture features such as operations supported (symmetric crypto, operation chaining etc) as well parameter such as whether the device is hardware accelerated or uses SIMD instructions. The capabilities parameter allows a PMD to define an array of supported operations with any limitation which that implementation may have. Finally the rte_cryptodev_info struct has been extended to allow retrieval of these parameter using the existing rte_cryptodev_info_get() API. Signed-off-by: Declan Doherty <declan.doherty@intel.com> Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com> Acked-by: Fiona Trahe <fiona.trahe@intel.com>
141 lines
4.5 KiB
C
141 lines
4.5 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2015-2016 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <rte_common.h>
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#include <rte_dev.h>
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#include <rte_malloc.h>
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#include <rte_cryptodev_pmd.h>
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#include "qat_crypto.h"
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#include "qat_logs.h"
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static struct rte_cryptodev_ops crypto_qat_ops = {
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/* Device related operations */
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.dev_configure = qat_dev_config,
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.dev_start = qat_dev_start,
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.dev_stop = qat_dev_stop,
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.dev_close = qat_dev_close,
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.dev_infos_get = qat_dev_info_get,
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.stats_get = qat_crypto_sym_stats_get,
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.stats_reset = qat_crypto_sym_stats_reset,
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.queue_pair_setup = qat_crypto_sym_qp_setup,
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.queue_pair_release = qat_crypto_sym_qp_release,
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.queue_pair_start = NULL,
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.queue_pair_stop = NULL,
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.queue_pair_count = NULL,
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/* Crypto related operations */
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.session_get_size = qat_crypto_sym_get_session_private_size,
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.session_configure = qat_crypto_sym_configure_session,
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.session_initialize = qat_crypto_sym_session_init,
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.session_clear = qat_crypto_sym_clear_session
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};
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/*
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* The set of PCI devices this driver supports
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*/
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static struct rte_pci_id pci_id_qat_map[] = {
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{
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.vendor_id = 0x8086,
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.device_id = 0x0443,
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.subsystem_vendor_id = PCI_ANY_ID,
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.subsystem_device_id = PCI_ANY_ID
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},
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{.device_id = 0},
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};
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static int
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crypto_qat_dev_init(__attribute__((unused)) struct rte_cryptodev_driver *crypto_drv,
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struct rte_cryptodev *cryptodev)
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{
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struct qat_pmd_private *internals;
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PMD_INIT_FUNC_TRACE();
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PMD_DRV_LOG(DEBUG, "Found crypto device at %02x:%02x.%x",
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cryptodev->pci_dev->addr.bus,
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cryptodev->pci_dev->addr.devid,
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cryptodev->pci_dev->addr.function);
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cryptodev->dev_type = RTE_CRYPTODEV_QAT_SYM_PMD;
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cryptodev->dev_ops = &crypto_qat_ops;
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cryptodev->enqueue_burst = qat_pmd_enqueue_op_burst;
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cryptodev->dequeue_burst = qat_pmd_dequeue_op_burst;
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cryptodev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
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RTE_CRYPTODEV_FF_HW_ACCELERATED |
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RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING;
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internals = cryptodev->data->dev_private;
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internals->max_nb_sessions = RTE_QAT_PMD_MAX_NB_SESSIONS;
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/*
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* For secondary processes, we don't initialise any further as primary
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* has already done this work. Only check we don't need a different
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* RX function
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*/
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if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
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PMD_DRV_LOG(DEBUG, "Device already initialised by primary process");
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return 0;
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}
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return 0;
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}
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static struct rte_cryptodev_driver rte_qat_pmd = {
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{
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.name = "rte_qat_pmd",
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.id_table = pci_id_qat_map,
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.drv_flags = RTE_PCI_DRV_NEED_MAPPING,
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},
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.cryptodev_init = crypto_qat_dev_init,
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.dev_private_size = sizeof(struct qat_pmd_private),
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};
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static int
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rte_qat_pmd_init(const char *name __rte_unused, const char *params __rte_unused)
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{
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PMD_INIT_FUNC_TRACE();
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return rte_cryptodev_pmd_driver_register(&rte_qat_pmd, PMD_PDEV);
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}
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static struct rte_driver pmd_qat_drv = {
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.type = PMD_PDEV,
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.init = rte_qat_pmd_init,
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};
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PMD_REGISTER_DRIVER(pmd_qat_drv);
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