ceph/src/spdk/dpdk/drivers/compress/qat/qat_comp.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2015-2019 Intel Corporation
   3  */
   4
   5 #ifndef _QAT_COMP_H_
   6 #define _QAT_COMP_H_
   7
   8 #ifdef RTE_LIBRTE_COMPRESSDEV
   9
  10 #include <rte_compressdev.h>
  11 #include <rte_compressdev_pmd.h>
  12
  13 #include "qat_common.h"
  14 #include "icp_qat_hw.h"
  15 #include "icp_qat_fw_comp.h"
  16 #include "icp_qat_fw_la.h"
  17
  18 #define QAT_64_BYTE_ALIGN_MASK (~0x3f)
  19 #define QAT_64_BYTE_ALIGN (64)
  20 #define QAT_NUM_BUFS_IN_IM_SGL 1
  21
  22 #define ERR_CODE_QAT_COMP_WRONG_FW -99
  23
  24 /* fallback to fixed compression threshold */
  25 #define QAT_FALLBACK_THLD ((uint32_t)(RTE_PMD_QAT_COMP_IM_BUFFER_SIZE / 1.1))
  26
  27 enum qat_comp_request_type {
  28         QAT_COMP_REQUEST_FIXED_COMP_STATELESS,
  29         QAT_COMP_REQUEST_DYNAMIC_COMP_STATELESS,
  30         QAT_COMP_REQUEST_DECOMPRESS,
  31         REQ_COMP_END
  32 };
  33
  34 struct array_of_ptrs {
  35         phys_addr_t pointer[0];
  36 };
  37
  38 struct qat_inter_sgl {
  39         qat_sgl_hdr;
  40         struct qat_flat_buf buffers[QAT_NUM_BUFS_IN_IM_SGL];
  41 } __rte_packed __rte_cache_aligned;
  42
  43
  44 struct qat_comp_op_cookie {
  45         phys_addr_t qat_sgl_src_phys_addr;
  46         phys_addr_t qat_sgl_dst_phys_addr;
  47         /* dynamically created SGLs */
  48         uint8_t socket_id;
  49         uint16_t src_nb_elems;
  50         uint16_t dst_nb_elems;
  51         struct qat_sgl *qat_sgl_src_d;
  52         struct qat_sgl *qat_sgl_dst_d;
  53 };
  54
  55 struct qat_comp_xform {
  56         struct icp_qat_fw_comp_req qat_comp_req_tmpl;
  57         enum qat_comp_request_type qat_comp_request_type;
  58         enum rte_comp_checksum_type checksum_type;
  59 };
  60
  61 int
  62 qat_comp_build_request(void *in_op, uint8_t *out_msg, void *op_cookie,
  63                        enum qat_device_gen qat_dev_gen __rte_unused);
  64
  65 int
  66 qat_comp_process_response(void **op, uint8_t *resp,
  67                           uint64_t *dequeue_err_count);
  68
  69 int
  70 qat_comp_private_xform_create(struct rte_compressdev *dev,
  71                               const struct rte_comp_xform *xform,
  72                               void **private_xform);
  73
  74 int
  75 qat_comp_private_xform_free(struct rte_compressdev *dev, void *private_xform);
  76
  77 unsigned int
  78 qat_comp_xform_size(void);
  79
  80 #endif
  81 #endif