drivers/scsi/qedi/qedi_fw_iscsi.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * QLogic iSCSI Offload Driver
   4  * Copyright (c) 2016 Cavium Inc.
   5  */
   6
   7 #ifndef _QEDI_FW_ISCSI_H_
   8 #define _QEDI_FW_ISCSI_H_
   9
  10 #include "qedi_fw_scsi.h"
  11
  12 struct iscsi_task_params {
  13         struct e4_iscsi_task_context *context;
  14         struct iscsi_wqe          *sqe;
  15         u32                       tx_io_size;
  16         u32                       rx_io_size;
  17         u16                       conn_icid;
  18         u16                       itid;
  19         u8                        cq_rss_number;
  20 };
  21
  22 struct iscsi_conn_params {
  23         u32     first_burst_length;
  24         u32     max_send_pdu_length;
  25         u32     max_burst_length;
  26         bool    initial_r2t;
  27         bool    immediate_data;
  28 };
  29
  30 /* @brief init_initiator_read_iscsi_task - initializes iSCSI Initiator Read
  31  * task context.
  32  *
  33  * @param task_params     - Pointer to task parameters struct
  34  * @param conn_params     - Connection Parameters
  35  * @param cmd_params      - command specific parameters
  36  * @param cmd_pdu_header  - PDU Header Parameters
  37  * @param sgl_task_params - Pointer to SGL task params
  38  * @param dif_task_params - Pointer to DIF parameters struct
  39  */
  40 int init_initiator_rw_iscsi_task(struct iscsi_task_params *task_params,
  41                                  struct iscsi_conn_params *conn_params,
  42                                  struct scsi_initiator_cmd_params *cmd_params,
  43                                  struct iscsi_cmd_hdr *cmd_pdu_header,
  44                                  struct scsi_sgl_task_params *tx_sgl_params,
  45                                  struct scsi_sgl_task_params *rx_sgl_params,
  46                                  struct scsi_dif_task_params *dif_task_params);
  47
  48 /* @brief init_initiator_login_request_task - initializes iSCSI Initiator Login
  49  * Request task context.
  50  *
  51  * @param task_params             - Pointer to task parameters struct
  52  * @param login_req_pdu_header    - PDU Header Parameters
  53  * @param tx_sgl_task_params      - Pointer to SGL task params
  54  * @param rx_sgl_task_params      - Pointer to SGL task params
  55  */
  56 int init_initiator_login_request_task(struct iscsi_task_params *task_params,
  57                                       struct iscsi_login_req_hdr *login_header,
  58                                       struct scsi_sgl_task_params *tx_params,
  59                                       struct scsi_sgl_task_params *rx_params);
  60
  61 /* @brief init_initiator_nop_out_task - initializes iSCSI Initiator NOP Out
  62  * task context.
  63  *
  64  * @param task_params           - Pointer to task parameters struct
  65  * @param nop_out_pdu_header    - PDU Header Parameters
  66  * @param tx_sgl_task_params    - Pointer to SGL task params
  67  * @param rx_sgl_task_params    - Pointer to SGL task params
  68  */
  69 int init_initiator_nop_out_task(struct iscsi_task_params *task_params,
  70                                 struct iscsi_nop_out_hdr *nop_out_pdu_header,
  71                                 struct scsi_sgl_task_params *tx_sgl_params,
  72                                 struct scsi_sgl_task_params *rx_sgl_params);
  73
  74 /* @brief init_initiator_logout_request_task - initializes iSCSI Initiator
  75  * Logout Request task context.
  76  *
  77  * @param task_params           - Pointer to task parameters struct
  78  * @param logout_pdu_header  - PDU Header Parameters
  79  * @param tx_sgl_task_params    - Pointer to SGL task params
  80  * @param rx_sgl_task_params    - Pointer to SGL task params
  81  */
  82 int init_initiator_logout_request_task(struct iscsi_task_params *task_params,
  83                                        struct iscsi_logout_req_hdr *logout_hdr,
  84                                        struct scsi_sgl_task_params *tx_params,
  85                                        struct scsi_sgl_task_params *rx_params);
  86
  87 /* @brief init_initiator_tmf_request_task - initializes iSCSI Initiator TMF
  88  * task context.
  89  *
  90  * @param task_params   - Pointer to task parameters struct
  91  * @param tmf_pdu_header - PDU Header Parameters
  92  */
  93 int init_initiator_tmf_request_task(struct iscsi_task_params *task_params,
  94                                     struct iscsi_tmf_request_hdr *tmf_header);
  95
  96 /* @brief init_initiator_text_request_task - initializes iSCSI Initiator Text
  97  * Request task context.
  98  *
  99  * @param task_params                - Pointer to task parameters struct
 100  * @param text_request_pdu_header    - PDU Header Parameters
 101  * @param tx_sgl_task_params         - Pointer to Tx SGL task params
 102  * @param rx_sgl_task_params         - Pointer to Rx SGL task params
 103  */
 104 int init_initiator_text_request_task(struct iscsi_task_params *task_params,
 105                                      struct iscsi_text_request_hdr *text_header,
 106                                      struct scsi_sgl_task_params *tx_params,
 107                                      struct scsi_sgl_task_params *rx_params);
 108
 109 /* @brief init_cleanup_task - initializes Clean task (SQE)
 110  *
 111  * @param task_params - Pointer to task parameters struct
 112  */
 113 int init_cleanup_task(struct iscsi_task_params *task_params);
 114 #endif