LXR linux/drivers/crypto/qat/qat_common/qat

   1/* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only) */
   2/* Copyright(c) 2014 - 2020 Intel Corporation */
   3#ifndef _QAT_CRYPTO_INSTANCE_H_
   4#define _QAT_CRYPTO_INSTANCE_H_
   5
   6#include <crypto/aes.h>
   7#include <linux/list.h>
   8#include <linux/slab.h>
   9#include "adf_accel_devices.h"
  10#include "icp_qat_fw_la.h"
  11
  12struct qat_crypto_instance {
  13        struct adf_etr_ring_data *sym_tx;
  14        struct adf_etr_ring_data *sym_rx;
  15        struct adf_etr_ring_data *pke_tx;
  16        struct adf_etr_ring_data *pke_rx;
  17        struct adf_accel_dev *accel_dev;
  18        struct list_head list;
  19        unsigned long state;
  20        int id;
  21        atomic_t refctr;
  22};
  23
  24struct qat_crypto_request_buffs {
  25        struct qat_alg_buf_list *bl;
  26        dma_addr_t blp;
  27        struct qat_alg_buf_list *blout;
  28        dma_addr_t bloutp;
  29        size_t sz;
  30        size_t sz_out;
  31};
  32
  33struct qat_crypto_request;
  34
  35struct qat_crypto_request {
  36        struct icp_qat_fw_la_bulk_req req;
  37        union {
  38                struct qat_alg_aead_ctx *aead_ctx;
  39                struct qat_alg_skcipher_ctx *skcipher_ctx;
  40        };
  41        union {
  42                struct aead_request *aead_req;
  43                struct skcipher_request *skcipher_req;
  44        };
  45        struct qat_crypto_request_buffs buf;
  46        void (*cb)(struct icp_qat_fw_la_resp *resp,
  47                   struct qat_crypto_request *req);
  48        union {
  49                struct {
  50                        __be64 iv_hi;
  51                        __be64 iv_lo;
  52                };
  53                u8 iv[AES_BLOCK_SIZE];
  54        };
  55        bool encryption;
  56};
  57
  58static inline bool adf_hw_dev_has_crypto(struct adf_accel_dev *accel_dev)
  59{
  60        struct adf_hw_device_data *hw_device = accel_dev->hw_device;
  61        u32 mask = ~hw_device->accel_capabilities_mask;
  62
  63        if (mask & ADF_ACCEL_CAPABILITIES_CRYPTO_SYMMETRIC)
  64                return false;
  65        if (mask & ADF_ACCEL_CAPABILITIES_CRYPTO_ASYMMETRIC)
  66                return false;
  67        if (mask & ADF_ACCEL_CAPABILITIES_AUTHENTICATION)
  68                return false;
  69
  70        return true;
  71}
  72
  73#endif
  74