LXR linux/drivers/scsi/qedi/qedi_fw

   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
  12struct 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
  22struct 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 */
  40int 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 */
  56int 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 */
  69int 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 */
  82int 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 */
  93int 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 */
 104int 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 */
 113int init_cleanup_task(struct iscsi_task_params *task_params);
 114#endif
 115