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 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 118