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_LIB_COMPRESSDEV
   9
  10 #include <rte_compressdev.h>
  11 #include <rte_compressdev_pmd.h>
  12
  13 #include "qat_common.h"
  14 #include "qat_qp.h"
  15 #include "icp_qat_hw.h"
  16 #include "icp_qat_fw_comp.h"
  17 #include "icp_qat_fw_la.h"
  18
  19 #define QAT_64_BYTE_ALIGN_MASK (~0x3f)
  20 #define QAT_64_BYTE_ALIGN (64)
  21 #define QAT_NUM_BUFS_IN_IM_SGL 1
  22
  23 #define ERR_CODE_QAT_COMP_WRONG_FW -99
  24
  25 /* fallback to fixed compression threshold */
  26 #define QAT_FALLBACK_THLD ((uint32_t)(RTE_PMD_QAT_COMP_IM_BUFFER_SIZE / 1.3))
  27
  28 #define QAT_MIN_OUT_BUF_SIZE 46
  29
  30 /* maximum size of the state registers */
  31 #define QAT_STATE_REGISTERS_MAX_SIZE 64
  32
  33 /* decompressor context size */
  34 #define QAT_INFLATE_CONTEXT_SIZE_GEN1 36864
  35 #define QAT_INFLATE_CONTEXT_SIZE_GEN2 34032
  36 #define QAT_INFLATE_CONTEXT_SIZE_GEN3 34032
  37 #define QAT_INFLATE_CONTEXT_SIZE RTE_MAX(RTE_MAX(QAT_INFLATE_CONTEXT_SIZE_GEN1,\
  38                 QAT_INFLATE_CONTEXT_SIZE_GEN2), QAT_INFLATE_CONTEXT_SIZE_GEN3)
  39
  40 enum qat_comp_request_type {
  41         QAT_COMP_REQUEST_FIXED_COMP_STATELESS,
  42         QAT_COMP_REQUEST_DYNAMIC_COMP_STATELESS,
  43         QAT_COMP_REQUEST_DECOMPRESS,
  44         REQ_COMP_END
  45 };
  46
  47 struct array_of_ptrs {
  48         phys_addr_t pointer[0];
  49 };
  50
  51 struct qat_inter_sgl {
  52         qat_sgl_hdr;
  53         struct qat_flat_buf buffers[QAT_NUM_BUFS_IN_IM_SGL];
  54 } __rte_packed __rte_cache_aligned;
  55
  56
  57 struct qat_comp_op_cookie {
  58         phys_addr_t qat_sgl_src_phys_addr;
  59         phys_addr_t qat_sgl_dst_phys_addr;
  60         /* dynamically created SGLs */
  61         uint8_t error;
  62         uint8_t socket_id;
  63         uint16_t src_nb_elems;
  64         uint16_t dst_nb_elems;
  65         struct qat_sgl *qat_sgl_src_d;
  66         struct qat_sgl *qat_sgl_dst_d;
  67         struct qat_qp *qp;
  68         uint32_t cookie_index;
  69
  70         /* QAT IM buffer too small handling: */
  71         uint8_t split_op;
  72         uint8_t nb_children;
  73
  74         /* used by the parent only */
  75         uint8_t nb_child_responses;
  76         uint32_t total_consumed;
  77         uint32_t total_produced;
  78         const struct rte_memzone **dst_memzones;
  79         struct rte_mbuf *dst_data;
  80         uint32_t dst_data_offset;
  81
  82         /* used by the child only */
  83         struct qat_comp_op_cookie *parent_cookie;
  84         void *dest_buffer;
  85 };
  86
  87 struct qat_comp_xform {
  88         struct icp_qat_fw_comp_req qat_comp_req_tmpl;
  89         enum qat_comp_request_type qat_comp_request_type;
  90         enum rte_comp_checksum_type checksum_type;
  91 };
  92
  93 struct qat_comp_stream {
  94         struct qat_comp_xform qat_xform;
  95         void *state_registers_decomp;
  96         phys_addr_t state_registers_decomp_phys;
  97         void *inflate_context;
  98         phys_addr_t inflate_context_phys;
  99         const struct rte_memzone *memzone;
 100         uint8_t start_of_packet;
 101         volatile uint8_t op_in_progress;
 102 };
 103
 104 int
 105 qat_comp_build_request(void *in_op, uint8_t *out_msg, void *op_cookie,
 106                        enum qat_device_gen qat_dev_gen __rte_unused);
 107
 108 int
 109 qat_comp_build_multiple_requests(void *in_op, struct qat_qp *qp,
 110                                  uint32_t parent_tail, int nb_descr);
 111
 112 void
 113 qat_comp_free_split_op_memzones(struct qat_comp_op_cookie *cookie,
 114                                 unsigned int nb_children);
 115
 116 int
 117 qat_comp_process_response(void **op, uint8_t *resp, void *op_cookie,
 118                           uint64_t *dequeue_err_count);
 119
 120 int
 121 qat_comp_private_xform_create(struct rte_compressdev *dev,
 122                               const struct rte_comp_xform *xform,
 123                               void **private_xform);
 124
 125 int
 126 qat_comp_private_xform_free(struct rte_compressdev *dev, void *private_xform);
 127
 128 unsigned int
 129 qat_comp_xform_size(void);
 130
 131 unsigned int
 132 qat_comp_stream_size(void);
 133
 134 int
 135 qat_comp_stream_create(struct rte_compressdev *dev,
 136                        const struct rte_comp_xform *xform,
 137                        void **stream);
 138
 139 int
 140 qat_comp_stream_free(struct rte_compressdev *dev, void *stream);
 141
 142 #endif
 143 #endif