qat_ocf_mem_pool.h

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    1 /* SPDX-License-Identifier: BSD-3-Clause */
    2 /* Copyright(c) 2007-2022 Intel Corporation */
    3 /* $FreeBSD$ */
    4 #ifndef _QAT_OCF_MEM_POOL_H_
    5 #define _QAT_OCF_MEM_POOL_H_
    6 
    7 /* System headers */
    8 #include <sys/types.h>
    9 
   10 /* QAT specific headers */
   11 #include "cpa.h"
   12 #include "cpa_cy_sym_dp.h"
   13 #include "icp_qat_fw_la.h"
   14 
   15 #define QAT_OCF_MAX_LEN (64 * 1024)
   16 #define QAT_OCF_MAX_FLATS (32)
   17 #define QAT_OCF_MAX_DIGEST SHA512_DIGEST_LENGTH
   18 #define QAT_OCF_MAX_SYMREQ (256)
   19 #define QAT_OCF_MEM_POOL_SIZE ((QAT_OCF_MAX_SYMREQ * 2 + 1) * 2)
   20 #define QAT_OCF_MAXLEN 64 * 1024
   21 
   22 /* Dedicated structure due to flexible arrays not allowed to be
   23  * allocated on stack */
   24 struct qat_ocf_buffer_list {
   25         Cpa64U reserved0;
   26         Cpa32U numBuffers;
   27         Cpa32U reserved1;
   28         CpaPhysFlatBuffer flatBuffers[QAT_OCF_MAX_FLATS];
   29 };
   30 
   31 struct qat_ocf_dma_mem {
   32         bus_dma_tag_t dma_tag;
   33         bus_dmamap_t dma_map;
   34         bus_dma_segment_t dma_seg;
   35         void *dma_vaddr;
   36 } __aligned(64);
   37 
   38 struct qat_ocf_cookie {
   39         /* Source SGLs */
   40         struct qat_ocf_buffer_list src_buffers;
   41         /* Destination SGL */
   42         struct qat_ocf_buffer_list dst_buffers;
   43 
   44         /* Cache OP data */
   45         CpaCySymDpOpData pOpdata;
   46 
   47         /* IV max size taken from cryptdev */
   48         uint8_t qat_ocf_iv_buf[EALG_MAX_BLOCK_LEN];
   49         bus_addr_t qat_ocf_iv_buf_paddr;
   50         uint8_t qat_ocf_digest[QAT_OCF_MAX_DIGEST];
   51         bus_addr_t qat_ocf_digest_paddr;
   52         /* Used only in case of separated AAD and GCM, CCM and RC4 */
   53         uint8_t qat_ocf_gcm_aad[ICP_QAT_FW_CCM_GCM_AAD_SZ_MAX];
   54         bus_addr_t qat_ocf_gcm_aad_paddr;
   55 
   56         /* Source SGLs */
   57         struct qat_ocf_dma_mem src_dma_mem;
   58         bus_addr_t src_buffer_list_paddr;
   59 
   60         /* Destination SGL */
   61         struct qat_ocf_dma_mem dst_dma_mem;
   62         bus_addr_t dst_buffer_list_paddr;
   63 
   64         /* AAD - used only if separated AAD is used by OCF and HW requires
   65          * to have it at the beginning of source buffer */
   66         struct qat_ocf_dma_mem gcm_aad_dma_mem;
   67         bus_addr_t gcm_aad_buffer_list_paddr;
   68         CpaBoolean is_sep_aad_used;
   69 
   70         /* Cache OP data */
   71         bus_addr_t pOpData_paddr;
   72         /* misc */
   73         struct cryptop *crp_op;
   74 
   75         /* This cookie tag and map */
   76         bus_dma_tag_t dma_tag;
   77         bus_dmamap_t dma_map;
   78 };
   79 
   80 struct qat_ocf_session {
   81         CpaCySymSessionCtx sessionCtx;
   82         Cpa32U sessionCtxSize;
   83         Cpa32U authLen;
   84         Cpa32U aadLen;
   85 };
   86 
   87 struct qat_ocf_dsession {
   88         struct qat_ocf_instance *qatInstance;
   89         struct qat_ocf_session encSession;
   90         struct qat_ocf_session decSession;
   91 };
   92 
   93 struct qat_ocf_load_cb_arg {
   94         struct cryptop *crp_op;
   95         struct qat_ocf_cookie *qat_cookie;
   96         CpaCySymDpOpData *pOpData;
   97         int error;
   98 };
   99 
  100 struct qat_ocf_instance {
  101         CpaInstanceHandle cyInstHandle;
  102         struct mtx cyInstMtx;
  103         struct qat_ocf_dma_mem cookie_dmamem[QAT_OCF_MEM_POOL_SIZE];
  104         struct qat_ocf_cookie *cookie_pool[QAT_OCF_MEM_POOL_SIZE];
  105         struct qat_ocf_cookie *free_cookie[QAT_OCF_MEM_POOL_SIZE];
  106         int free_cookie_ptr;
  107         struct mtx cookie_pool_mtx;
  108         int32_t driver_id;
  109 };
  110 
  111 /* Init/deinit */
  112 CpaStatus qat_ocf_cookie_pool_init(struct qat_ocf_instance *instance,
  113                                    device_t dev);
  114 void qat_ocf_cookie_pool_deinit(struct qat_ocf_instance *instance);
  115 /* Alloc/free */
  116 CpaStatus qat_ocf_cookie_alloc(struct qat_ocf_instance *instance,
  117                                struct qat_ocf_cookie **buffers_out);
  118 void qat_ocf_cookie_free(struct qat_ocf_instance *instance,
  119                          struct qat_ocf_cookie *cookie);
  120 /* Pre/post sync */
  121 CpaStatus qat_ocf_cookie_dma_pre_sync(struct cryptop *crp,
  122                                       CpaCySymDpOpData *pOpData);
  123 CpaStatus qat_ocf_cookie_dma_post_sync(struct cryptop *crp,
  124                                        CpaCySymDpOpData *pOpData);
  125 /* Bus DMA unload */
  126 CpaStatus qat_ocf_cookie_dma_unload(struct cryptop *crp,
  127                                     CpaCySymDpOpData *pOpData);
  128 /* Bus DMA load callbacks */
  129 void qat_ocf_crypto_load_buf_cb(void *_arg,
  130                                 bus_dma_segment_t *segs,
  131                                 int nseg,
  132                                 int error);
  133 void qat_ocf_crypto_load_obuf_cb(void *_arg,
  134                                  bus_dma_segment_t *segs,
  135                                  int nseg,
  136                                  int error);
  137 void qat_ocf_crypto_load_aadbuf_cb(void *_arg,
  138                                    bus_dma_segment_t *segs,
  139                                    int nseg,
  140                                    int error);
  141 
  142 #endif /* _QAT_OCF_MEM_POOL_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/dev/qat/include/qat_ocf_mem_pool.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/qat/include/qat_ocf_mem_pool.h