IPSec使用QAT加速卡函数接口流程

2. IPSec采用QAT加速卡处理流程

加密流程函数调用关系

• ipsec_xmit_esp
  • ipsec_qat_esp_xmit_proc
    • ipsec_qat_get_cpa_cipher
    • ipsec_qat_get_cpa_hash
    • ipsec_qat_req_priv_malloc
    • ipsec_qat_pkt_enc_info_save
    • ipsec_qat_get_cpa_cipher_hash_type
    • ipsec_qat_get_session
      • ipsec_qat_find_session
      • ipsec_qat_new_session
    • ipsec_send_qat_request_proc
      • ipsec_init_qat_symdp_request
        • ipsec_init_qat_symdp_session
          • ipse_update_qat_setupdata
          • cpaCySymUpdateSession
        • ipsec_init_qat_symdp_opdata
          • 构造CpaCySymDpOpData数据
      • ipsec_send_qat_symdp_request
        • ipsec_submit_qat_symdp_request
          • cpaCySymDpEnqueueOpBatch

解密流程函数调用关系

• ipsec_rcv_auth_decap
• ipsec_rcv_auth_calc
  • ipsec_qat_esp_rcv_proc
    • ipsec_qat_get_cpa_cipher
    • ipsec_qat_get_cpa_hash
    • ipsec_qat_req_priv_malloc
    • ipsec_qat_pkt_enc_info_save
    • ipsec_qat_get_cpa_cipher_hash_type
    • ipsec_qat_get_session
      • ipsec_qat_find_session
      • ipsec_qat_new_session
    • ipsec_send_qat_request_proc
      • ipsec_init_qat_symdp_request
        • ipsec_init_qat_symdp_session
          • ipse_update_qat_setupdata
          • cpaCySymUpdateSession
        • ipsec_init_qat_symdp_opdata
          • 构造CpaCySymDpOpData数据
      • ipsec_send_qat_symdp_request
        • ipsec_submit_qat_symdp_request
          • cpaCySymDpEnqueueOpBatch

qat轮询流程

• ipcom_drv_dpdk_poll_loop
  • ipsec_polling_qat_symdp_response
    • ipsec_submit_qat_symdp_request_batch
      • ipsec_submit_qat_symdp_request
        • cpaCySymDpEnqueueOpBatch
    • icp_sal_CyPollDpInstance
    • ipsec_clean_qat_proc
      • ipsec_clean_qat_private
        • ipsec_memfree_qat_opdata
          • ipsec_qat_mempool_element_add
          • ipsec_qat_check_session
          • ipsec_qat_req_priv_free

QAT 的回调函数处理流程

• ipsec_process_qat_symdp_response_cb
  • ipsec_qat_tos_input
    • 处理方式和tos_input函数一致，通过qat_enc_flag来标记是否经过qat加解密