text: /*******************************************************************
   * This file is part of the Emulex Linux Device Driver for         *
   * Fibre Channel Host Bus Adapters.                                *
   * Copyright (C) 2017 Broadcom. All Rights Reserved. The term      *
   * “Broadcom” refers to Broadcom Limited and/or its subsidiaries.  *
   * Copyright (C) 2004-2016 Emulex.  All rights reserved.           *
   * EMULEX and SLI are trademarks of Emulex.                        *
   * www.broadcom.com                                                *
   * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
   *                                                                 *
   * This program is free software; you can redistribute it and/or   *
   * modify it under the terms of version 2 of the GNU General       *
   * Public License as published by the Free Software Foundation.    *
   * This program is distributed in the hope that it will be useful. *
   * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
   * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
   * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
   * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
   * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
   * more details, a copy of which can be found in the file COPYING  *
   * included with this package.                                     *
   ********************************************************************/
  
  #define LPFC_NVME_DEFAULT_SEGS		(64 + 1)	/* 256K IOs */
  #define LPFC_NVME_WQSIZE		256
  
  #define LPFC_NVME_ERSP_LEN		0x20
  
  struct lpfc_nvme_qhandle {
  	uint32_t index;		/* WQ index to use */
  	uint32_t qidx;		/* queue index passed to create */
  	uint32_t cpu_id;	/* current cpu id at time of create */
  };
  
  /* Declare nvme-based local and remote port definitions. */
  struct lpfc_nvme_lport {
  	struct lpfc_vport *vport;
  	struct completion lport_unreg_done;
  	/* Add sttats counters here */
  };
  
  struct lpfc_nvme_rport {
  	struct lpfc_nvme_lport *lport;
  	struct nvme_fc_remote_port *remoteport;
  	struct lpfc_nodelist *ndlp;
  	struct completion rport_unreg_done;
  };
  
  struct lpfc_nvme_buf {
  	struct list_head list;
  	struct nvmefc_fcp_req *nvmeCmd;
  	struct lpfc_nvme_rport *nrport;
  	struct lpfc_nodelist *ndlp;
  
  	uint32_t timeout;
  
  	uint16_t flags;  /* TBD convert exch_busy to flags */
  #define LPFC_SBUF_XBUSY         0x1     /* SLI4 hba reported XB on WCQE cmpl */
  	uint16_t exch_busy;     /* SLI4 hba reported XB on complete WCQE */
  	uint16_t status;	/* From IOCB Word 7- ulpStatus */
  	uint16_t cpu;
  	uint16_t qidx;
  	uint16_t sqid;
  	uint32_t result;	/* From IOCB Word 4. */
  
  	uint32_t   seg_cnt;	/* Number of scatter-gather segments returned by
  				 * dma_map_sg.  The driver needs this for calls
  				 * to dma_unmap_sg.
  				 */
  	dma_addr_t nonsg_phys;	/* Non scatter-gather physical address. */
  
  	/*
  	 * data and dma_handle are the kernel virtual and bus address of the
  	 * dma-able buffer containing the fcp_cmd, fcp_rsp and a scatter
  	 * gather bde list that supports the sg_tablesize value.
  	 */
  	void *data;
  	dma_addr_t dma_handle;
  
  	struct sli4_sge *nvme_sgl;
  	dma_addr_t dma_phys_sgl;
  
  	/* cur_iocbq has phys of the dma-able buffer.
  	 * Iotag is in here
  	 */
  	struct lpfc_iocbq cur_iocbq;
  
  	wait_queue_head_t *waitq;
  	unsigned long start_time;
  #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
  	uint64_t ts_cmd_start;
  	uint64_t ts_last_cmd;
  	uint64_t ts_cmd_wqput;
  	uint64_t ts_isr_cmpl;
  	uint64_t ts_data_nvme;
  #endif
  };
  
  struct lpfc_nvme_fcpreq_priv {
  	struct lpfc_nvme_buf *nvme_buf;
  };
  