ceph/src/spdk/dpdk/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 };
  22
  23 enum qat_service_type {
  24         QAT_SERVICE_ASYMMETRIC = 0,
  25         QAT_SERVICE_SYMMETRIC,
  26         QAT_SERVICE_COMPRESSION,
  27         QAT_SERVICE_INVALID
  28 };
  29
  30 #define QAT_MAX_SERVICES                (QAT_SERVICE_INVALID)
  31
  32 /**< Common struct for scatter-gather list operations */
  33 struct qat_flat_buf {
  34         uint32_t len;
  35         uint32_t resrvd;
  36         uint64_t addr;
  37 } __rte_packed;
  38
  39 #define qat_sgl_hdr  struct { \
  40         uint64_t resrvd; \
  41         uint32_t num_bufs; \
  42         uint32_t num_mapped_bufs; \
  43 }
  44
  45 __extension__
  46 struct qat_sgl {
  47         qat_sgl_hdr;
  48         /* flexible array of flat buffers*/
  49         struct qat_flat_buf buffers[0];
  50 } __rte_packed __rte_cache_aligned;
  51
  52 /** Common, i.e. not service-specific, statistics */
  53 struct qat_common_stats {
  54         uint64_t enqueued_count;
  55         /**< Count of all operations enqueued */
  56         uint64_t dequeued_count;
  57         /**< Count of all operations dequeued */
  58
  59         uint64_t enqueue_err_count;
  60         /**< Total error count on operations enqueued */
  61         uint64_t dequeue_err_count;
  62         /**< Total error count on operations dequeued */
  63 };
  64
  65 struct qat_pci_device;
  66
  67 int
  68 qat_sgl_fill_array(struct rte_mbuf *buf, int64_t offset,
  69                 void *list_in, uint32_t data_len,
  70                 const uint16_t max_segs);
  71 void
  72 qat_stats_get(struct qat_pci_device *dev,
  73                 struct qat_common_stats *stats,
  74                 enum qat_service_type service);
  75 void
  76 qat_stats_reset(struct qat_pci_device *dev,
  77                 enum qat_service_type service);
  78
  79 #endif /* _QAT_COMMON_H_ */