drivers/scsi/qedf/drv_fcoe_fw_funcs.h

   1 /* QLogic FCoE Offload Driver
   2  * Copyright (c) 2016-2017 Cavium Inc.
   3  *
   4  * This software is available under the terms of the GNU General Public License
   5  * (GPL) Version 2, available from the file COPYING in the main directory of
   6  * this source tree.
   7  */
   8 #ifndef _FCOE_FW_FUNCS_H
   9 #define _FCOE_FW_FUNCS_H
  10 #include "drv_scsi_fw_funcs.h"
  11 #include "qedf_hsi.h"
  12 #include <linux/qed/qed_if.h>
  13
  14 struct fcoe_task_params {
  15         /* Output parameter [set/filled by the HSI function] */
  16         struct fcoe_task_context *context;
  17
  18         /* Output parameter [set/filled by the HSI function] */
  19         struct fcoe_wqe *sqe;
  20         enum fcoe_task_type task_type;
  21         u32 tx_io_size; /* in bytes */
  22         u32 rx_io_size; /* in bytes */
  23         u32 conn_cid;
  24         u16 itid;
  25         u8 cq_rss_number;
  26
  27          /* Whether it's Tape device or not (0=Disk, 1=Tape) */
  28         u8 is_tape_device;
  29 };
  30
  31 /**
  32  * @brief init_initiator_rw_fcoe_task - Initializes FCoE task context for
  33  * read/write task types and init fcoe_sqe
  34  *
  35  * @param task_params - Pointer to task parameters struct
  36  * @param sgl_task_params - Pointer to SGL task params
  37  * @param sense_data_buffer_phys_addr - Pointer to sense data buffer
  38  * @param task_retry_id - retry identification - Used only for Tape device
  39  * @param fcp_cmnd_payload - FCP CMD Payload
  40  */
  41 int init_initiator_rw_fcoe_task(struct fcoe_task_params *task_params,
  42         struct scsi_sgl_task_params *sgl_task_params,
  43         struct regpair sense_data_buffer_phys_addr,
  44         u32 task_retry_id,
  45         u8 fcp_cmd_payload[32]);
  46
  47 /**
  48  * @brief init_initiator_midpath_fcoe_task - Initializes FCoE task context for
  49  * midpath/unsolicited task types and init fcoe_sqe
  50  *
  51  * @param task_params - Pointer to task parameters struct
  52  * @param mid_path_fc_header - FC header
  53  * @param tx_sgl_task_params - Pointer to Tx SGL task params
  54  * @param rx_sgl_task_params - Pointer to Rx SGL task params
  55  * @param fw_to_place_fc_header - Indication if the FW will place the FC header
  56  * in addition to the data arrives.
  57  */
  58 int init_initiator_midpath_unsolicited_fcoe_task(
  59         struct fcoe_task_params *task_params,
  60         struct fcoe_tx_mid_path_params *mid_path_fc_header,
  61         struct scsi_sgl_task_params *tx_sgl_task_params,
  62         struct scsi_sgl_task_params *rx_sgl_task_params,
  63         u8 fw_to_place_fc_header);
  64
  65 /**
  66  * @brief init_initiator_abort_fcoe_task - Initializes FCoE task context for
  67  * abort task types and init fcoe_sqe
  68  *
  69  * @param task_params - Pointer to task parameters struct
  70  */
  71 int init_initiator_abort_fcoe_task(struct fcoe_task_params *task_params);
  72
  73 /**
  74  * @brief init_initiator_cleanup_fcoe_task - Initializes FCoE task context for
  75  * cleanup task types and init fcoe_sqe
  76  *
  77  *
  78  * @param task_params - Pointer to task parameters struct
  79  */
  80 int init_initiator_cleanup_fcoe_task(struct fcoe_task_params *task_params);
  81
  82 /**
  83  * @brief init_initiator_cleanup_fcoe_task - Initializes FCoE task context for
  84  * sequence recovery task types and init fcoe_sqe
  85  *
  86  *
  87  * @param task_params - Pointer to task parameters struct
  88  * @param desired_offset - The desired offest the task will be re-sent from
  89  */
  90 int init_initiator_sequence_recovery_fcoe_task(
  91         struct fcoe_task_params *task_params,
  92         u32 desired_offset);
  93 #endif