drivers/crypto/qat/qat_qp.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018 Intel Corporation
   3  */
   4 #ifndef _QAT_QP_H_
   5 #define _QAT_QP_H_
   6
   7 #include "qat_common.h"
   8
   9 typedef int (*build_request_t)(void *op,
  10                 uint8_t *req, void *op_cookie,
  11                 enum qat_device_gen qat_dev_gen);
  12 /**< Build a request from an op. */
  13
  14 typedef int (*process_response_t)(void **ops,
  15                 uint8_t *resp, void *op_cookie,
  16                 enum qat_device_gen qat_dev_gen);
  17 /**< Process a response descriptor and return the associated op. */
  18
  19 /**
  20  * Structure associated with each queue.
  21  */
  22 struct qat_queue {
  23         char            memz_name[RTE_MEMZONE_NAMESIZE];
  24         void            *base_addr;             /* Base address */
  25         rte_iova_t      base_phys_addr;         /* Queue physical address */
  26         uint32_t        head;                   /* Shadow copy of the head */
  27         uint32_t        tail;                   /* Shadow copy of the tail */
  28         uint32_t        modulo;
  29         uint32_t        msg_size;
  30         uint16_t        max_inflights;
  31         uint32_t        queue_size;
  32         uint8_t         hw_bundle_number;
  33         uint8_t         hw_queue_number;
  34         /* HW queue aka ring offset on bundle */
  35         uint32_t        csr_head;               /* last written head value */
  36         uint32_t        csr_tail;               /* last written tail value */
  37         uint16_t        nb_processed_responses;
  38         /* number of responses processed since last CSR head write */
  39         uint16_t        nb_pending_requests;
  40         /* number of requests pending since last CSR tail write */
  41 };
  42
  43 struct qat_qp {
  44         void                    *mmap_bar_addr;
  45         uint16_t                inflights16;
  46         struct  qat_queue       tx_q;
  47         struct  qat_queue       rx_q;
  48         struct  rte_cryptodev_stats stats;
  49         struct rte_mempool *op_cookie_pool;
  50         void **op_cookies;
  51         uint32_t nb_descriptors;
  52         enum qat_device_gen qat_dev_gen;
  53         build_request_t build_request;
  54         process_response_t process_response;
  55 } __rte_cache_aligned;
  56
  57 uint16_t
  58 qat_enqueue_op_burst(void *qp, void **ops, uint16_t nb_ops);
  59
  60 uint16_t
  61 qat_dequeue_op_burst(void *qp, void **ops, uint16_t nb_ops);
  62
  63 #endif /* _QAT_QP_H_ */