drivers/common/qat/qat_common.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018 Intel Corporation
   3  */
   4 #ifndef _QAT_COMMON_H_
   5 #define _QAT_COMMON_H_
   6
   7 #include <stdint.h>
   8
   9 #include <rte_mbuf.h>
  10
  11 /**< Intel(R) QAT device name for PCI registration */
  12 #define QAT_PCI_NAME    qat
  13 #define QAT_64_BTYE_ALIGN_MASK (~0x3f)
  14
  15 /* Intel(R) QuickAssist Technology device generation is enumerated
  16  * from one according to the generation of the device
  17  */
  18 enum qat_device_gen {
  19         QAT_GEN1 = 1,
  20         QAT_GEN2,
  21         QAT_GEN3
  22 };
  23
  24 enum qat_service_type {
  25         QAT_SERVICE_ASYMMETRIC = 0,
  26         QAT_SERVICE_SYMMETRIC,
  27         QAT_SERVICE_COMPRESSION,
  28         QAT_SERVICE_INVALID
  29 };
  30
  31 #define QAT_MAX_SERVICES                (QAT_SERVICE_INVALID)
  32
  33 /**< Common struct for scatter-gather list operations */
  34 struct qat_flat_buf {
  35         uint32_t len;
  36         uint32_t resrvd;
  37         uint64_t addr;
  38 } __rte_packed;
  39
  40 #define qat_sgl_hdr  struct { \
  41         uint64_t resrvd; \
  42         uint32_t num_bufs; \
  43         uint32_t num_mapped_bufs; \
  44 }
  45
  46 __extension__
  47 struct qat_sgl {
  48         qat_sgl_hdr;
  49         /* flexible array of flat buffers*/
  50         struct qat_flat_buf buffers[0];
  51 } __rte_packed __rte_cache_aligned;
  52
  53 /** Common, i.e. not service-specific, statistics */
  54 struct qat_common_stats {
  55         uint64_t enqueued_count;
  56         /**< Count of all operations enqueued */
  57         uint64_t dequeued_count;
  58         /**< Count of all operations dequeued */
  59
  60         uint64_t enqueue_err_count;
  61         /**< Total error count on operations enqueued */
  62         uint64_t dequeue_err_count;
  63         /**< Total error count on operations dequeued */
  64 };
  65
  66 struct qat_pci_device;
  67
  68 int
  69 qat_sgl_fill_array(struct rte_mbuf *buf, int64_t offset,
  70                 void *list_in, uint32_t data_len,
  71                 const uint16_t max_segs);
  72 void
  73 qat_stats_get(struct qat_pci_device *dev,
  74                 struct qat_common_stats *stats,
  75                 enum qat_service_type service);
  76 void
  77 qat_stats_reset(struct qat_pci_device *dev,
  78                 enum qat_service_type service);
  79
  80 #endif /* _QAT_COMMON_H_ */