drivers/scsi/qedi/qedi_fw_iscsi.h

   1 /*
   2  * QLogic iSCSI Offload Driver
   3  * Copyright (c) 2016 Cavium Inc.
   4  *
   5  * This software is available under the terms of the GNU General Public License
   6  * (GPL) Version 2, available from the file COPYING in the main directory of
   7  * this source tree.
   8  */
   9
  10 #ifndef _QEDI_FW_ISCSI_H_
  11 #define _QEDI_FW_ISCSI_H_
  12
  13 #include "qedi_fw_scsi.h"
  14
  15 struct iscsi_task_params {
  16         struct e4_iscsi_task_context *context;
  17         struct iscsi_wqe          *sqe;
  18         u32                       tx_io_size;
  19         u32                       rx_io_size;
  20         u16                       conn_icid;
  21         u16                       itid;
  22         u8                        cq_rss_number;
  23 };
  24
  25 struct iscsi_conn_params {
  26         u32     first_burst_length;
  27         u32     max_send_pdu_length;
  28         u32     max_burst_length;
  29         bool    initial_r2t;
  30         bool    immediate_data;
  31 };
  32
  33 /* @brief init_initiator_read_iscsi_task - initializes iSCSI Initiator Read
  34  * task context.
  35  *
  36  * @param task_params     - Pointer to task parameters struct
  37  * @param conn_params     - Connection Parameters
  38  * @param cmd_params      - command specific parameters
  39  * @param cmd_pdu_header  - PDU Header Parameters
  40  * @param sgl_task_params - Pointer to SGL task params
  41  * @param dif_task_params - Pointer to DIF parameters struct
  42  */
  43 int init_initiator_rw_iscsi_task(struct iscsi_task_params *task_params,
  44                                  struct iscsi_conn_params *conn_params,
  45                                  struct scsi_initiator_cmd_params *cmd_params,
  46                                  struct iscsi_cmd_hdr *cmd_pdu_header,
  47                                  struct scsi_sgl_task_params *tx_sgl_params,
  48                                  struct scsi_sgl_task_params *rx_sgl_params,
  49                                  struct scsi_dif_task_params *dif_task_params);
  50
  51 /* @brief init_initiator_login_request_task - initializes iSCSI Initiator Login
  52  * Request task context.
  53  *
  54  * @param task_params             - Pointer to task parameters struct
  55  * @param login_req_pdu_header    - PDU Header Parameters
  56  * @param tx_sgl_task_params      - Pointer to SGL task params
  57  * @param rx_sgl_task_params      - Pointer to SGL task params
  58  */
  59 int init_initiator_login_request_task(struct iscsi_task_params *task_params,
  60                                       struct iscsi_login_req_hdr *login_header,
  61                                       struct scsi_sgl_task_params *tx_params,
  62                                       struct scsi_sgl_task_params *rx_params);
  63
  64 /* @brief init_initiator_nop_out_task - initializes iSCSI Initiator NOP Out
  65  * task context.
  66  *
  67  * @param task_params           - Pointer to task parameters struct
  68  * @param nop_out_pdu_header    - PDU Header Parameters
  69  * @param tx_sgl_task_params    - Pointer to SGL task params
  70  * @param rx_sgl_task_params    - Pointer to SGL task params
  71  */
  72 int init_initiator_nop_out_task(struct iscsi_task_params *task_params,
  73                                 struct iscsi_nop_out_hdr *nop_out_pdu_header,
  74                                 struct scsi_sgl_task_params *tx_sgl_params,
  75                                 struct scsi_sgl_task_params *rx_sgl_params);
  76
  77 /* @brief init_initiator_logout_request_task - initializes iSCSI Initiator
  78  * Logout Request task context.
  79  *
  80  * @param task_params           - Pointer to task parameters struct
  81  * @param logout_pdu_header  - PDU Header Parameters
  82  * @param tx_sgl_task_params    - Pointer to SGL task params
  83  * @param rx_sgl_task_params    - Pointer to SGL task params
  84  */
  85 int init_initiator_logout_request_task(struct iscsi_task_params *task_params,
  86                                        struct iscsi_logout_req_hdr *logout_hdr,
  87                                        struct scsi_sgl_task_params *tx_params,
  88                                        struct scsi_sgl_task_params *rx_params);
  89
  90 /* @brief init_initiator_tmf_request_task - initializes iSCSI Initiator TMF
  91  * task context.
  92  *
  93  * @param task_params   - Pointer to task parameters struct
  94  * @param tmf_pdu_header - PDU Header Parameters
  95  */
  96 int init_initiator_tmf_request_task(struct iscsi_task_params *task_params,
  97                                     struct iscsi_tmf_request_hdr *tmf_header);
  98
  99 /* @brief init_initiator_text_request_task - initializes iSCSI Initiator Text
 100  * Request task context.
 101  *
 102  * @param task_params                - Pointer to task parameters struct
 103  * @param text_request_pdu_header    - PDU Header Parameters
 104  * @param tx_sgl_task_params         - Pointer to Tx SGL task params
 105  * @param rx_sgl_task_params         - Pointer to Rx SGL task params
 106  */
 107 int init_initiator_text_request_task(struct iscsi_task_params *task_params,
 108                                      struct iscsi_text_request_hdr *text_header,
 109                                      struct scsi_sgl_task_params *tx_params,
 110                                      struct scsi_sgl_task_params *rx_params);
 111
 112 /* @brief init_cleanup_task - initializes Clean task (SQE)
 113  *
 114  * @param task_params - Pointer to task parameters struct
 115  */
 116 int init_cleanup_task(struct iscsi_task_params *task_params);
 117 #endif